]>
Commit | Line | Data |
---|---|---|
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 | |
7a0019d3 LP |
24 | #include "sd-messages.h" |
25 | ||
b5efdb8a | 26 | #include "alloc-util.h" |
574634bc | 27 | #include "async.h" |
4f5dd394 LP |
28 | #include "bus-error.h" |
29 | #include "bus-kernel.h" | |
30 | #include "bus-util.h" | |
4139c1b2 | 31 | #include "dbus-service.h" |
f6a6225e | 32 | #include "def.h" |
4d1a6904 | 33 | #include "env-util.h" |
4f5dd394 LP |
34 | #include "escape.h" |
35 | #include "exit-status.h" | |
3ffd4af2 | 36 | #include "fd-util.h" |
a5c32cff | 37 | #include "fileio.h" |
f97b34a6 | 38 | #include "format-util.h" |
f4f15635 | 39 | #include "fs-util.h" |
4f5dd394 LP |
40 | #include "load-dropin.h" |
41 | #include "load-fragment.h" | |
42 | #include "log.h" | |
43 | #include "manager.h" | |
6bedfcbb | 44 | #include "parse-util.h" |
4f5dd394 | 45 | #include "path-util.h" |
0b452006 | 46 | #include "process-util.h" |
3ffd4af2 | 47 | #include "service.h" |
24882e06 | 48 | #include "signal-util.h" |
4f5dd394 | 49 | #include "special.h" |
e266c068 | 50 | #include "stdio-util.h" |
8b43440b | 51 | #include "string-table.h" |
07630cea | 52 | #include "string-util.h" |
4f5dd394 LP |
53 | #include "strv.h" |
54 | #include "unit-name.h" | |
4f5dd394 LP |
55 | #include "unit.h" |
56 | #include "utf8.h" | |
57 | #include "util.h" | |
034c6ed7 | 58 | |
acbb0225 | 59 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 LP |
60 | [SERVICE_DEAD] = UNIT_INACTIVE, |
61 | [SERVICE_START_PRE] = UNIT_ACTIVATING, | |
62 | [SERVICE_START] = UNIT_ACTIVATING, | |
63 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
64 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 65 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 66 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 | 67 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
db2cb23b | 68 | [SERVICE_STOP_SIGABRT] = UNIT_DEACTIVATING, |
87f0e418 LP |
69 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
70 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
71 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
72 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
73 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 74 | [SERVICE_FAILED] = UNIT_FAILED, |
6124958c | 75 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING |
034c6ed7 | 76 | }; |
5cb5a6ff | 77 | |
e056b01d LP |
78 | /* For Type=idle we never want to delay any other jobs, hence we |
79 | * consider idle jobs active as soon as we start working on them */ | |
80 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
81 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
82 | [SERVICE_START_PRE] = UNIT_ACTIVE, | |
83 | [SERVICE_START] = UNIT_ACTIVE, | |
84 | [SERVICE_START_POST] = UNIT_ACTIVE, | |
85 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
86 | [SERVICE_EXITED] = UNIT_ACTIVE, | |
87 | [SERVICE_RELOAD] = UNIT_RELOADING, | |
88 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
db2cb23b | 89 | [SERVICE_STOP_SIGABRT] = UNIT_DEACTIVATING, |
e056b01d LP |
90 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
91 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
92 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
93 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
94 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
95 | [SERVICE_FAILED] = UNIT_FAILED, | |
96 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING | |
97 | }; | |
98 | ||
718db961 LP |
99 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
100 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); | |
101 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); | |
102 | ||
842129f5 | 103 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
308d72dc | 104 | static void service_enter_reload_by_notify(Service *s); |
842129f5 | 105 | |
a16e1123 LP |
106 | static void service_init(Unit *u) { |
107 | Service *s = SERVICE(u); | |
108 | ||
109 | assert(u); | |
ac155bb8 | 110 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 111 | |
1f19a534 OS |
112 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
113 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
114 | s->restart_usec = u->manager->default_restart_usec; | |
36c16a7c | 115 | s->runtime_max_usec = USEC_INFINITY; |
0b86feac | 116 | s->type = _SERVICE_TYPE_INVALID; |
a16e1123 | 117 | s->socket_fd = -1; |
a34ceba6 | 118 | s->stdin_fd = s->stdout_fd = s->stderr_fd = -1; |
3185a36b | 119 | s->guess_main_pid = true; |
a16e1123 | 120 | |
a16e1123 LP |
121 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
122 | } | |
123 | ||
5e94833f LP |
124 | static void service_unwatch_control_pid(Service *s) { |
125 | assert(s); | |
126 | ||
127 | if (s->control_pid <= 0) | |
128 | return; | |
129 | ||
130 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
131 | s->control_pid = 0; | |
132 | } | |
133 | ||
134 | static void service_unwatch_main_pid(Service *s) { | |
135 | assert(s); | |
136 | ||
137 | if (s->main_pid <= 0) | |
138 | return; | |
139 | ||
140 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
141 | s->main_pid = 0; | |
142 | } | |
143 | ||
3e52541e MS |
144 | static void service_unwatch_pid_file(Service *s) { |
145 | if (!s->pid_file_pathspec) | |
146 | return; | |
147 | ||
f2341e0a | 148 | log_unit_debug(UNIT(s), "Stopping watch for PID file %s", s->pid_file_pathspec->path); |
718db961 | 149 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e | 150 | path_spec_done(s->pid_file_pathspec); |
a1e58e8e | 151 | s->pid_file_pathspec = mfree(s->pid_file_pathspec); |
3e52541e MS |
152 | } |
153 | ||
5925dd3c | 154 | static int service_set_main_pid(Service *s, pid_t pid) { |
e55224ca LP |
155 | pid_t ppid; |
156 | ||
5925dd3c LP |
157 | assert(s); |
158 | ||
159 | if (pid <= 1) | |
160 | return -EINVAL; | |
161 | ||
df0ff127 | 162 | if (pid == getpid_cached()) |
5925dd3c LP |
163 | return -EINVAL; |
164 | ||
7400b9d2 LP |
165 | if (s->main_pid == pid && s->main_pid_known) |
166 | return 0; | |
167 | ||
168 | if (s->main_pid != pid) { | |
169 | service_unwatch_main_pid(s); | |
170 | exec_status_start(&s->main_exec_status, pid); | |
171 | } | |
41efeaec | 172 | |
6dfa5494 LP |
173 | s->main_pid = pid; |
174 | s->main_pid_known = true; | |
175 | ||
df0ff127 | 176 | if (get_process_ppid(pid, &ppid) >= 0 && ppid != getpid_cached()) { |
f2341e0a | 177 | 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 |
178 | s->main_pid_alien = true; |
179 | } else | |
180 | s->main_pid_alien = false; | |
5925dd3c LP |
181 | |
182 | return 0; | |
183 | } | |
184 | ||
3e7a1f50 | 185 | void service_close_socket_fd(Service *s) { |
4f2d528d LP |
186 | assert(s); |
187 | ||
5cc3985e | 188 | /* Undo the effect of service_set_socket_fd(). */ |
4f2d528d | 189 | |
5cc3985e | 190 | s->socket_fd = asynchronous_close(s->socket_fd); |
6cf6bbc2 | 191 | |
5cc3985e LP |
192 | if (UNIT_ISSET(s->accept_socket)) { |
193 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); | |
194 | unit_ref_unset(&s->accept_socket); | |
195 | } | |
6cf6bbc2 LP |
196 | } |
197 | ||
a6927d7f MO |
198 | static void service_stop_watchdog(Service *s) { |
199 | assert(s); | |
200 | ||
718db961 | 201 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
842129f5 | 202 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
203 | } |
204 | ||
2787d83c M |
205 | static usec_t service_get_watchdog_usec(Service *s) { |
206 | assert(s); | |
207 | ||
208 | if (s->watchdog_override_enable) | |
209 | return s->watchdog_override_usec; | |
210 | else | |
211 | return s->watchdog_usec; | |
212 | } | |
213 | ||
842129f5 | 214 | static void service_start_watchdog(Service *s) { |
bb242b7b | 215 | int r; |
2787d83c | 216 | usec_t watchdog_usec; |
bb242b7b MO |
217 | |
218 | assert(s); | |
219 | ||
2787d83c M |
220 | watchdog_usec = service_get_watchdog_usec(s); |
221 | if (watchdog_usec == 0 || watchdog_usec == USEC_INFINITY) | |
bb242b7b MO |
222 | return; |
223 | ||
718db961 | 224 | if (s->watchdog_event_source) { |
2787d83c | 225 | r = sd_event_source_set_time(s->watchdog_event_source, usec_add(s->watchdog_timestamp.monotonic, watchdog_usec)); |
718db961 | 226 | if (r < 0) { |
f2341e0a | 227 | log_unit_warning_errno(UNIT(s), r, "Failed to reset watchdog timer: %m"); |
718db961 LP |
228 | return; |
229 | } | |
230 | ||
842129f5 | 231 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 232 | } else { |
6a0f1f6d LP |
233 | r = sd_event_add_time( |
234 | UNIT(s)->manager->event, | |
235 | &s->watchdog_event_source, | |
236 | CLOCK_MONOTONIC, | |
2787d83c | 237 | usec_add(s->watchdog_timestamp.monotonic, watchdog_usec), 0, |
6a0f1f6d | 238 | service_dispatch_watchdog, s); |
c4ef3317 | 239 | if (r < 0) { |
f2341e0a | 240 | log_unit_warning_errno(UNIT(s), r, "Failed to add watchdog timer: %m"); |
c4ef3317 LP |
241 | return; |
242 | } | |
243 | ||
7dfbe2e3 TG |
244 | (void) sd_event_source_set_description(s->watchdog_event_source, "service-watchdog"); |
245 | ||
c4ef3317 LP |
246 | /* Let's process everything else which might be a sign |
247 | * of living before we consider a service died. */ | |
248 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
249 | } | |
718db961 | 250 | |
bb242b7b | 251 | if (r < 0) |
f2341e0a | 252 | log_unit_warning_errno(UNIT(s), r, "Failed to install watchdog timer: %m"); |
bb242b7b MO |
253 | } |
254 | ||
a6927d7f MO |
255 | static void service_reset_watchdog(Service *s) { |
256 | assert(s); | |
257 | ||
258 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 259 | service_start_watchdog(s); |
a6927d7f MO |
260 | } |
261 | ||
2787d83c M |
262 | static void service_reset_watchdog_timeout(Service *s, usec_t watchdog_override_usec) { |
263 | assert(s); | |
264 | ||
265 | s->watchdog_override_enable = true; | |
266 | s->watchdog_override_usec = watchdog_override_usec; | |
267 | service_reset_watchdog(s); | |
268 | ||
269 | log_unit_debug(UNIT(s), "watchdog_usec="USEC_FMT, s->watchdog_usec); | |
270 | log_unit_debug(UNIT(s), "watchdog_override_usec="USEC_FMT, s->watchdog_override_usec); | |
271 | } | |
272 | ||
a354329f LP |
273 | static void service_fd_store_unlink(ServiceFDStore *fs) { |
274 | ||
275 | if (!fs) | |
276 | return; | |
277 | ||
278 | if (fs->service) { | |
279 | assert(fs->service->n_fd_store > 0); | |
280 | LIST_REMOVE(fd_store, fs->service->fd_store, fs); | |
281 | fs->service->n_fd_store--; | |
282 | } | |
283 | ||
284 | if (fs->event_source) { | |
285 | sd_event_source_set_enabled(fs->event_source, SD_EVENT_OFF); | |
286 | sd_event_source_unref(fs->event_source); | |
287 | } | |
288 | ||
8dd4c05b | 289 | free(fs->fdname); |
a354329f LP |
290 | safe_close(fs->fd); |
291 | free(fs); | |
292 | } | |
293 | ||
f0bfbfac ZJS |
294 | static void service_release_fd_store(Service *s) { |
295 | assert(s); | |
296 | ||
297 | log_unit_debug(UNIT(s), "Releasing all stored fds"); | |
298 | while (s->fd_store) | |
299 | service_fd_store_unlink(s->fd_store); | |
300 | ||
301 | assert(s->n_fd_store == 0); | |
302 | } | |
303 | ||
304 | static void service_release_resources(Unit *u, bool inactive) { | |
a354329f LP |
305 | Service *s = SERVICE(u); |
306 | ||
307 | assert(s); | |
308 | ||
a34ceba6 | 309 | if (!s->fd_store && s->stdin_fd < 0 && s->stdout_fd < 0 && s->stderr_fd < 0) |
a354329f LP |
310 | return; |
311 | ||
f0bfbfac | 312 | log_unit_debug(u, "Releasing resources."); |
a354329f | 313 | |
a34ceba6 LP |
314 | s->stdin_fd = safe_close(s->stdin_fd); |
315 | s->stdout_fd = safe_close(s->stdout_fd); | |
316 | s->stderr_fd = safe_close(s->stderr_fd); | |
317 | ||
f0bfbfac ZJS |
318 | if (inactive) |
319 | service_release_fd_store(s); | |
a354329f LP |
320 | } |
321 | ||
87f0e418 LP |
322 | static void service_done(Unit *u) { |
323 | Service *s = SERVICE(u); | |
44d8db9e LP |
324 | |
325 | assert(s); | |
326 | ||
a1e58e8e LP |
327 | s->pid_file = mfree(s->pid_file); |
328 | s->status_text = mfree(s->status_text); | |
efe6e7d3 | 329 | |
613b411c | 330 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); |
e537352b | 331 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 332 | s->control_command = NULL; |
867b3b7d | 333 | s->main_command = NULL; |
44d8db9e | 334 | |
29206d46 LP |
335 | dynamic_creds_unref(&s->dynamic_creds); |
336 | ||
37520c1b LP |
337 | exit_status_set_free(&s->restart_prevent_status); |
338 | exit_status_set_free(&s->restart_force_status); | |
339 | exit_status_set_free(&s->success_status); | |
96342de6 | 340 | |
44d8db9e LP |
341 | /* This will leak a process, but at least no memory or any of |
342 | * our resources */ | |
5e94833f LP |
343 | service_unwatch_main_pid(s); |
344 | service_unwatch_control_pid(s); | |
3e52541e | 345 | service_unwatch_pid_file(s); |
44d8db9e | 346 | |
05e343b7 | 347 | if (s->bus_name) { |
ac155bb8 | 348 | unit_unwatch_bus_name(u, s->bus_name); |
a1e58e8e | 349 | s->bus_name = mfree(s->bus_name); |
05e343b7 LP |
350 | } |
351 | ||
d8ccf5fd DM |
352 | s->bus_name_owner = mfree(s->bus_name_owner); |
353 | ||
4f2d528d | 354 | service_close_socket_fd(s); |
9d565427 | 355 | s->peer = socket_peer_unref(s->peer); |
4f2d528d | 356 | |
57020a3a | 357 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 358 | |
bb242b7b MO |
359 | service_stop_watchdog(s); |
360 | ||
718db961 | 361 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
a354329f | 362 | |
f0bfbfac | 363 | service_release_resources(u, true); |
718db961 LP |
364 | } |
365 | ||
2339fc93 LP |
366 | static int on_fd_store_io(sd_event_source *e, int fd, uint32_t revents, void *userdata) { |
367 | ServiceFDStore *fs = userdata; | |
368 | ||
369 | assert(e); | |
370 | assert(fs); | |
371 | ||
372 | /* If we get either EPOLLHUP or EPOLLERR, it's time to remove this entry from the fd store */ | |
16f70d63 ZJS |
373 | log_unit_debug(UNIT(fs->service), |
374 | "Received %s on stored fd %d (%s), closing.", | |
375 | revents & EPOLLERR ? "EPOLLERR" : "EPOLLHUP", | |
376 | fs->fd, strna(fs->fdname)); | |
2339fc93 LP |
377 | service_fd_store_unlink(fs); |
378 | return 0; | |
379 | } | |
380 | ||
8dd4c05b | 381 | static int service_add_fd_store(Service *s, int fd, const char *name) { |
2339fc93 LP |
382 | ServiceFDStore *fs; |
383 | int r; | |
384 | ||
9021ff17 ZJS |
385 | /* fd is always consumed if we return >= 0 */ |
386 | ||
2339fc93 LP |
387 | assert(s); |
388 | assert(fd >= 0); | |
389 | ||
390 | if (s->n_fd_store >= s->n_fd_store_max) | |
b0924635 ZJS |
391 | return -EXFULL; /* Our store is full. |
392 | * Use this errno rather than E[NM]FILE to distinguish from | |
393 | * the case where systemd itself hits the file limit. */ | |
2339fc93 LP |
394 | |
395 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
396 | r = same_fd(fs->fd, fd); | |
397 | if (r < 0) | |
398 | return r; | |
399 | if (r > 0) { | |
2339fc93 | 400 | safe_close(fd); |
9021ff17 | 401 | return 0; /* fd already included */ |
2339fc93 LP |
402 | } |
403 | } | |
404 | ||
405 | fs = new0(ServiceFDStore, 1); | |
406 | if (!fs) | |
407 | return -ENOMEM; | |
408 | ||
409 | fs->fd = fd; | |
410 | fs->service = s; | |
8dd4c05b | 411 | fs->fdname = strdup(name ?: "stored"); |
17dec0f7 | 412 | if (!fs->fdname) { |
413 | free(fs); | |
8dd4c05b | 414 | return -ENOMEM; |
17dec0f7 | 415 | } |
2339fc93 LP |
416 | |
417 | r = sd_event_add_io(UNIT(s)->manager->event, &fs->event_source, fd, 0, on_fd_store_io, fs); | |
3ceb72e5 | 418 | if (r < 0 && r != -EPERM) { /* EPERM indicates fds that aren't pollable, which is OK */ |
8dd4c05b | 419 | free(fs->fdname); |
2339fc93 LP |
420 | free(fs); |
421 | return r; | |
3ceb72e5 LP |
422 | } else if (r >= 0) |
423 | (void) sd_event_source_set_description(fs->event_source, "service-fd-store"); | |
7dfbe2e3 | 424 | |
2339fc93 LP |
425 | LIST_PREPEND(fd_store, s->fd_store, fs); |
426 | s->n_fd_store++; | |
427 | ||
9021ff17 | 428 | return 1; /* fd newly stored */ |
2339fc93 LP |
429 | } |
430 | ||
8dd4c05b | 431 | static int service_add_fd_store_set(Service *s, FDSet *fds, const char *name) { |
2339fc93 LP |
432 | int r; |
433 | ||
434 | assert(s); | |
435 | ||
b0924635 | 436 | while (fdset_size(fds) > 0) { |
2339fc93 LP |
437 | _cleanup_close_ int fd = -1; |
438 | ||
439 | fd = fdset_steal_first(fds); | |
440 | if (fd < 0) | |
441 | break; | |
442 | ||
8dd4c05b | 443 | r = service_add_fd_store(s, fd, name); |
b0924635 ZJS |
444 | if (r == -EXFULL) |
445 | return log_unit_warning_errno(UNIT(s), r, | |
446 | "Cannot store more fds than FileDescriptorStoreMax=%u, closing remaining.", | |
447 | s->n_fd_store_max); | |
2339fc93 | 448 | if (r < 0) |
b0924635 | 449 | return log_unit_error_errno(UNIT(s), r, "Failed to add fd to store: %m"); |
9021ff17 | 450 | if (r > 0) |
16f70d63 | 451 | log_unit_debug(UNIT(s), "Added fd %u (%s) to fd store.", fd, strna(name)); |
9021ff17 | 452 | fd = -1; |
2339fc93 LP |
453 | } |
454 | ||
2339fc93 LP |
455 | return 0; |
456 | } | |
457 | ||
718db961 LP |
458 | static int service_arm_timer(Service *s, usec_t usec) { |
459 | int r; | |
460 | ||
461 | assert(s); | |
462 | ||
718db961 | 463 | if (s->timer_event_source) { |
36c16a7c | 464 | r = sd_event_source_set_time(s->timer_event_source, usec); |
718db961 LP |
465 | if (r < 0) |
466 | return r; | |
467 | ||
468 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
469 | } | |
470 | ||
36c16a7c LP |
471 | if (usec == USEC_INFINITY) |
472 | return 0; | |
473 | ||
7dfbe2e3 | 474 | r = sd_event_add_time( |
6a0f1f6d LP |
475 | UNIT(s)->manager->event, |
476 | &s->timer_event_source, | |
477 | CLOCK_MONOTONIC, | |
36c16a7c | 478 | usec, 0, |
6a0f1f6d | 479 | service_dispatch_timer, s); |
7dfbe2e3 TG |
480 | if (r < 0) |
481 | return r; | |
482 | ||
483 | (void) sd_event_source_set_description(s->timer_event_source, "service-timer"); | |
484 | ||
485 | return 0; | |
44d8db9e LP |
486 | } |
487 | ||
243b1432 LP |
488 | static int service_verify(Service *s) { |
489 | assert(s); | |
490 | ||
1124fe6f | 491 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
492 | return 0; |
493 | ||
96fb8242 | 494 | if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP]) { |
f2341e0a | 495 | log_unit_error(UNIT(s), "Service lacks both ExecStart= and ExecStop= setting. Refusing."); |
243b1432 LP |
496 | return -EINVAL; |
497 | } | |
498 | ||
96fb8242 | 499 | if (s->type != SERVICE_ONESHOT && !s->exec_command[SERVICE_EXEC_START]) { |
f2341e0a | 500 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
96fb8242 LP |
501 | return -EINVAL; |
502 | } | |
503 | ||
504 | if (!s->remain_after_exit && !s->exec_command[SERVICE_EXEC_START]) { | |
f2341e0a | 505 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for RemainAfterExit=yes services. Refusing."); |
96fb8242 LP |
506 | return -EINVAL; |
507 | } | |
508 | ||
509 | if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) { | |
f2341e0a | 510 | log_unit_error(UNIT(s), "Service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6cf6bbc2 LP |
511 | return -EINVAL; |
512 | } | |
513 | ||
b0693d30 | 514 | if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { |
f2341e0a | 515 | log_unit_error(UNIT(s), "Service has Restart= setting other than no, which isn't allowed for Type=oneshot services. Refusing."); |
37520c1b LP |
516 | return -EINVAL; |
517 | } | |
518 | ||
55ebf98c | 519 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) { |
f2341e0a | 520 | log_unit_error(UNIT(s), "Service has RestartForceStatus= set, which isn't allowed for Type=oneshot services. Refusing."); |
b0693d30 MW |
521 | return -EINVAL; |
522 | } | |
523 | ||
05e343b7 | 524 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
f2341e0a | 525 | log_unit_error(UNIT(s), "Service is of type D-Bus but no D-Bus service name has been specified. Refusing."); |
4d0e5dbd LP |
526 | return -EINVAL; |
527 | } | |
528 | ||
7e2668c6 | 529 | if (s->bus_name && s->type != SERVICE_DBUS) |
f2341e0a | 530 | log_unit_warning(UNIT(s), "Service has a D-Bus service name specified, but is not of type dbus. Ignoring."); |
7e2668c6 | 531 | |
ebc2259d | 532 | if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) { |
f2341e0a | 533 | log_unit_error(UNIT(s), "Service has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing."); |
05e343b7 LP |
534 | return -EINVAL; |
535 | } | |
536 | ||
6b7e5923 PS |
537 | if (s->usb_function_descriptors && !s->usb_function_strings) |
538 | log_unit_warning(UNIT(s), "Service has USBFunctionDescriptors= setting, but no USBFunctionStrings=. Ignoring."); | |
539 | ||
540 | if (!s->usb_function_descriptors && s->usb_function_strings) | |
541 | log_unit_warning(UNIT(s), "Service has USBFunctionStrings= setting, but no USBFunctionDescriptors=. Ignoring."); | |
542 | ||
36c16a7c LP |
543 | if (s->runtime_max_usec != USEC_INFINITY && s->type == SERVICE_ONESHOT) |
544 | log_unit_warning(UNIT(s), "MaxRuntimeSec= has no effect in combination with Type=oneshot. Ignoring."); | |
545 | ||
243b1432 LP |
546 | return 0; |
547 | } | |
548 | ||
a40eb732 LP |
549 | static int service_add_default_dependencies(Service *s) { |
550 | int r; | |
551 | ||
552 | assert(s); | |
553 | ||
45f06b34 LP |
554 | if (!UNIT(s)->default_dependencies) |
555 | return 0; | |
556 | ||
a40eb732 LP |
557 | /* Add a number of automatic dependencies useful for the |
558 | * majority of services. */ | |
559 | ||
463d0d15 | 560 | if (MANAGER_IS_SYSTEM(UNIT(s)->manager)) { |
cb4c247d LP |
561 | /* First, pull in the really early boot stuff, and |
562 | * require it, so that we fail if we can't acquire | |
563 | * it. */ | |
564 | ||
565 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true); | |
566 | if (r < 0) | |
567 | return r; | |
568 | } else { | |
569 | ||
570 | /* In the --user instance there's no sysinit.target, | |
571 | * in that case require basic.target instead. */ | |
572 | ||
573 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true); | |
574 | if (r < 0) | |
575 | return r; | |
576 | } | |
577 | ||
578 | /* Second, if the rest of the base system is in the same | |
579 | * transaction, order us after it, but do not pull it in or | |
580 | * even require it. */ | |
581 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true); | |
fccd44ec KS |
582 | if (r < 0) |
583 | return r; | |
a40eb732 | 584 | |
cb4c247d | 585 | /* Third, add us in for normal shutdown. */ |
8545f7ce | 586 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
a40eb732 LP |
587 | } |
588 | ||
4dfc092a LP |
589 | static void service_fix_output(Service *s) { |
590 | assert(s); | |
591 | ||
592 | /* If nothing has been explicitly configured, patch default | |
593 | * output in. If input is socket/tty we avoid this however, | |
594 | * since in that case we want output to default to the same | |
595 | * place as we read input from. */ | |
596 | ||
597 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
598 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
599 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 600 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
601 | |
602 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
603 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 604 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
605 | } |
606 | ||
45f06b34 LP |
607 | static int service_setup_bus_name(Service *s) { |
608 | int r; | |
609 | ||
610 | assert(s); | |
611 | ||
612 | if (!s->bus_name) | |
613 | return 0; | |
614 | ||
222953e8 DR |
615 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true); |
616 | if (r < 0) | |
617 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); | |
45f06b34 | 618 | |
a132bef0 | 619 | /* We always want to be ordered against dbus.socket if both are in the transaction. */ |
45f06b34 LP |
620 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_DBUS_SOCKET, NULL, true); |
621 | if (r < 0) | |
92bed462 | 622 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); |
45f06b34 LP |
623 | |
624 | r = unit_watch_bus_name(UNIT(s), s->bus_name); | |
625 | if (r == -EEXIST) | |
626 | return log_unit_error_errno(UNIT(s), r, "Two services allocated for the same bus name %s, refusing operation.", s->bus_name); | |
627 | if (r < 0) | |
628 | return log_unit_error_errno(UNIT(s), r, "Cannot watch bus name %s: %m", s->bus_name); | |
629 | ||
630 | return 0; | |
631 | } | |
632 | ||
8545f7ce LP |
633 | static int service_add_extras(Service *s) { |
634 | int r; | |
635 | ||
636 | assert(s); | |
637 | ||
638 | if (s->type == _SERVICE_TYPE_INVALID) { | |
639 | /* Figure out a type automatically */ | |
640 | if (s->bus_name) | |
641 | s->type = SERVICE_DBUS; | |
642 | else if (s->exec_command[SERVICE_EXEC_START]) | |
643 | s->type = SERVICE_SIMPLE; | |
644 | else | |
645 | s->type = SERVICE_ONESHOT; | |
646 | } | |
647 | ||
648 | /* Oneshot services have disabled start timeout by default */ | |
649 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
36c16a7c | 650 | s->timeout_start_usec = USEC_INFINITY; |
8545f7ce LP |
651 | |
652 | service_fix_output(s); | |
653 | ||
654 | r = unit_patch_contexts(UNIT(s)); | |
655 | if (r < 0) | |
656 | return r; | |
657 | ||
658 | r = unit_add_exec_dependencies(UNIT(s), &s->exec_context); | |
659 | if (r < 0) | |
660 | return r; | |
661 | ||
d79200e2 | 662 | r = unit_set_default_slice(UNIT(s)); |
8545f7ce LP |
663 | if (r < 0) |
664 | return r; | |
665 | ||
666 | if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) | |
667 | s->notify_access = NOTIFY_MAIN; | |
668 | ||
669 | if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) | |
670 | s->notify_access = NOTIFY_MAIN; | |
671 | ||
45f06b34 LP |
672 | r = service_add_default_dependencies(s); |
673 | if (r < 0) | |
674 | return r; | |
8545f7ce | 675 | |
45f06b34 LP |
676 | r = service_setup_bus_name(s); |
677 | if (r < 0) | |
678 | return r; | |
8545f7ce LP |
679 | |
680 | return 0; | |
681 | } | |
682 | ||
e537352b | 683 | static int service_load(Unit *u) { |
e537352b | 684 | Service *s = SERVICE(u); |
8bb2d17d | 685 | int r; |
e537352b LP |
686 | |
687 | assert(s); | |
1e2e8133 | 688 | |
5cb5a6ff | 689 | /* Load a .service file */ |
c2756a68 LP |
690 | r = unit_load_fragment(u); |
691 | if (r < 0) | |
5cb5a6ff LP |
692 | return r; |
693 | ||
23a177ef | 694 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 695 | if (u->load_state == UNIT_STUB) |
23a177ef | 696 | return -ENOENT; |
034c6ed7 | 697 | |
23a177ef | 698 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 699 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
700 | |
701 | /* We were able to load something, then let's add in | |
702 | * the dropin directories. */ | |
703 | r = unit_load_dropin(u); | |
704 | if (r < 0) | |
705 | return r; | |
706 | ||
8545f7ce LP |
707 | /* This is a new unit? Then let's add in some |
708 | * extras */ | |
709 | r = service_add_extras(s); | |
598459ce LP |
710 | if (r < 0) |
711 | return r; | |
8e274523 LP |
712 | } |
713 | ||
243b1432 | 714 | return service_verify(s); |
034c6ed7 LP |
715 | } |
716 | ||
87f0e418 | 717 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 718 | ServiceExecCommand c; |
87f0e418 | 719 | Service *s = SERVICE(u); |
47be870b | 720 | const char *prefix2; |
5cb5a6ff LP |
721 | |
722 | assert(s); | |
723 | ||
4c940960 | 724 | prefix = strempty(prefix); |
63c372cb | 725 | prefix2 = strjoina(prefix, "\t"); |
44d8db9e | 726 | |
5cb5a6ff | 727 | fprintf(f, |
81a2b7ce | 728 | "%sService State: %s\n" |
f42806df LP |
729 | "%sResult: %s\n" |
730 | "%sReload Result: %s\n" | |
81a2b7ce | 731 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 732 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 733 | "%sRemainAfterExit: %s\n" |
3185a36b | 734 | "%sGuessMainPID: %s\n" |
c952c6ec | 735 | "%sType: %s\n" |
2cf3143a | 736 | "%sRestart: %s\n" |
308d72dc LP |
737 | "%sNotifyAccess: %s\n" |
738 | "%sNotifyState: %s\n", | |
81a2b7ce | 739 | prefix, service_state_to_string(s->state), |
f42806df LP |
740 | prefix, service_result_to_string(s->result), |
741 | prefix, service_result_to_string(s->reload_result), | |
81a2b7ce | 742 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 743 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 744 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 745 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 746 | prefix, service_type_to_string(s->type), |
2cf3143a | 747 | prefix, service_restart_to_string(s->restart), |
308d72dc LP |
748 | prefix, notify_access_to_string(s->notify_access), |
749 | prefix, notify_state_to_string(s->notify_state)); | |
5cb5a6ff | 750 | |
70123e68 LP |
751 | if (s->control_pid > 0) |
752 | fprintf(f, | |
ccd06097 ZJS |
753 | "%sControl PID: "PID_FMT"\n", |
754 | prefix, s->control_pid); | |
70123e68 LP |
755 | |
756 | if (s->main_pid > 0) | |
757 | fprintf(f, | |
ccd06097 | 758 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
759 | "%sMain PID Known: %s\n" |
760 | "%sMain PID Alien: %s\n", | |
ccd06097 | 761 | prefix, s->main_pid, |
6dfa5494 LP |
762 | prefix, yes_no(s->main_pid_known), |
763 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 764 | |
034c6ed7 LP |
765 | if (s->pid_file) |
766 | fprintf(f, | |
767 | "%sPIDFile: %s\n", | |
768 | prefix, s->pid_file); | |
769 | ||
05e343b7 LP |
770 | if (s->bus_name) |
771 | fprintf(f, | |
772 | "%sBusName: %s\n" | |
773 | "%sBus Name Good: %s\n", | |
774 | prefix, s->bus_name, | |
775 | prefix, yes_no(s->bus_name_good)); | |
776 | ||
9dfb64f8 ZJS |
777 | if (UNIT_ISSET(s->accept_socket)) |
778 | fprintf(f, | |
779 | "%sAccept Socket: %s\n", | |
780 | prefix, UNIT_DEREF(s->accept_socket)->id); | |
781 | ||
4819ff03 | 782 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
783 | exec_context_dump(&s->exec_context, f, prefix); |
784 | ||
e537352b | 785 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 786 | |
44d8db9e LP |
787 | if (!s->exec_command[c]) |
788 | continue; | |
789 | ||
40d50879 | 790 | fprintf(f, "%s-> %s:\n", |
94f04347 | 791 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
792 | |
793 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 794 | } |
44d8db9e | 795 | |
8c47c732 LP |
796 | if (s->status_text) |
797 | fprintf(f, "%sStatus Text: %s\n", | |
798 | prefix, s->status_text); | |
a354329f | 799 | |
ece174c5 | 800 | if (s->n_fd_store_max > 0) |
a354329f LP |
801 | fprintf(f, |
802 | "%sFile Descriptor Store Max: %u\n" | |
803 | "%sFile Descriptor Store Current: %u\n", | |
804 | prefix, s->n_fd_store_max, | |
805 | prefix, s->n_fd_store); | |
5cb5a6ff LP |
806 | } |
807 | ||
c5419d42 | 808 | static int service_load_pid_file(Service *s, bool may_warn) { |
7fd1b19b | 809 | _cleanup_free_ char *k = NULL; |
034c6ed7 | 810 | int r; |
5925dd3c | 811 | pid_t pid; |
034c6ed7 LP |
812 | |
813 | assert(s); | |
814 | ||
034c6ed7 | 815 | if (!s->pid_file) |
13230d5d | 816 | return -ENOENT; |
034c6ed7 | 817 | |
117dcc57 ZJS |
818 | r = read_one_line_file(s->pid_file, &k); |
819 | if (r < 0) { | |
c5419d42 | 820 | if (may_warn) |
f2341e0a | 821 | 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 | 822 | return r; |
5375410b | 823 | } |
034c6ed7 | 824 | |
5925dd3c | 825 | r = parse_pid(k, &pid); |
bc41f93e ZJS |
826 | if (r < 0) { |
827 | if (may_warn) | |
f2341e0a | 828 | log_unit_info_errno(UNIT(s), r, "Failed to read PID from file %s: %m", s->pid_file); |
5925dd3c | 829 | return r; |
bc41f93e | 830 | } |
406eaf93 | 831 | |
9f5650ae | 832 | if (!pid_is_alive(pid)) { |
c5419d42 | 833 | if (may_warn) |
f2341e0a | 834 | 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 |
835 | return -ESRCH; |
836 | } | |
837 | ||
db01f8b3 MS |
838 | if (s->main_pid_known) { |
839 | if (pid == s->main_pid) | |
840 | return 0; | |
841 | ||
f2341e0a | 842 | log_unit_debug(UNIT(s), "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
8bb2d17d | 843 | |
db01f8b3 MS |
844 | service_unwatch_main_pid(s); |
845 | s->main_pid_known = false; | |
3a111838 | 846 | } else |
f2341e0a | 847 | log_unit_debug(UNIT(s), "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 848 | |
117dcc57 ZJS |
849 | r = service_set_main_pid(s, pid); |
850 | if (r < 0) | |
16f6025e LP |
851 | return r; |
852 | ||
117dcc57 | 853 | r = unit_watch_pid(UNIT(s), pid); |
e8b509d3 LP |
854 | if (r < 0) /* FIXME: we need to do something here */ |
855 | return log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", pid); | |
034c6ed7 LP |
856 | |
857 | return 0; | |
858 | } | |
859 | ||
783e05d6 | 860 | static void service_search_main_pid(Service *s) { |
efdb0237 | 861 | pid_t pid = 0; |
4fbf50b3 LP |
862 | int r; |
863 | ||
864 | assert(s); | |
865 | ||
3185a36b LP |
866 | /* If we know it anyway, don't ever fallback to unreliable |
867 | * heuristics */ | |
4fbf50b3 | 868 | if (s->main_pid_known) |
783e05d6 | 869 | return; |
4fbf50b3 | 870 | |
3185a36b | 871 | if (!s->guess_main_pid) |
783e05d6 | 872 | return; |
3185a36b | 873 | |
4fbf50b3 LP |
874 | assert(s->main_pid <= 0); |
875 | ||
783e05d6 ZJS |
876 | if (unit_search_main_pid(UNIT(s), &pid) < 0) |
877 | return; | |
4fbf50b3 | 878 | |
f2341e0a | 879 | log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid); |
783e05d6 ZJS |
880 | if (service_set_main_pid(s, pid) < 0) |
881 | return; | |
4fbf50b3 | 882 | |
117dcc57 | 883 | r = unit_watch_pid(UNIT(s), pid); |
783e05d6 | 884 | if (r < 0) |
4fbf50b3 | 885 | /* FIXME: we need to do something here */ |
f2341e0a | 886 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", pid); |
4fbf50b3 LP |
887 | } |
888 | ||
034c6ed7 LP |
889 | static void service_set_state(Service *s, ServiceState state) { |
890 | ServiceState old_state; | |
e056b01d | 891 | const UnitActiveState *table; |
842129f5 | 892 | |
5cb5a6ff LP |
893 | assert(s); |
894 | ||
e056b01d LP |
895 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
896 | ||
034c6ed7 | 897 | old_state = s->state; |
5cb5a6ff | 898 | s->state = state; |
034c6ed7 | 899 | |
3a111838 MS |
900 | service_unwatch_pid_file(s); |
901 | ||
842129f5 LP |
902 | if (!IN_SET(state, |
903 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
36c16a7c | 904 | SERVICE_RUNNING, |
842129f5 | 905 | SERVICE_RELOAD, |
57614eb1 | 906 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 LP |
907 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
908 | SERVICE_AUTO_RESTART)) | |
718db961 | 909 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 910 | |
842129f5 LP |
911 | if (!IN_SET(state, |
912 | SERVICE_START, SERVICE_START_POST, | |
913 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 | 914 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf108e55 | 915 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 916 | service_unwatch_main_pid(s); |
867b3b7d LP |
917 | s->main_command = NULL; |
918 | } | |
034c6ed7 | 919 | |
842129f5 LP |
920 | if (!IN_SET(state, |
921 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
922 | SERVICE_RELOAD, | |
57614eb1 | 923 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 | 924 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 925 | service_unwatch_control_pid(s); |
034c6ed7 | 926 | s->control_command = NULL; |
a16e1123 | 927 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 928 | } |
034c6ed7 | 929 | |
a911bb9a LP |
930 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
931 | unit_unwatch_all_pids(UNIT(s)); | |
932 | ||
842129f5 LP |
933 | if (!IN_SET(state, |
934 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
935 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 LP |
936 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
937 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && | |
5cc3985e | 938 | !(state == SERVICE_DEAD && UNIT(s)->job)) |
4f2d528d LP |
939 | service_close_socket_fd(s); |
940 | ||
7596e9e1 | 941 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
942 | service_stop_watchdog(s); |
943 | ||
f6023656 LP |
944 | /* For the inactive states unit_notify() will trim the cgroup, |
945 | * but for exit we have to do that ourselves... */ | |
2c289ea8 | 946 | if (state == SERVICE_EXITED && !MANAGER_IS_RELOADING(UNIT(s)->manager)) |
efdb0237 | 947 | unit_prune_cgroup(UNIT(s)); |
f6023656 | 948 | |
9cd86184 OB |
949 | /* For remain_after_exit services, let's see if we can "release" the |
950 | * hold on the console, since unit_notify() only does that in case of | |
951 | * change of state */ | |
f49650ce LP |
952 | if (state == SERVICE_EXITED && |
953 | s->remain_after_exit && | |
9cd86184 | 954 | UNIT(s)->manager->n_on_console > 0) { |
f49650ce LP |
955 | |
956 | ExecContext *ec; | |
957 | ||
958 | ec = unit_get_exec_context(UNIT(s)); | |
9cd86184 OB |
959 | if (ec && exec_context_may_touch_console(ec)) { |
960 | Manager *m = UNIT(s)->manager; | |
961 | ||
313cefa1 | 962 | m->n_on_console--; |
9cd86184 OB |
963 | if (m->n_on_console == 0) |
964 | /* unset no_console_output flag, since the console is free */ | |
965 | m->no_console_output = false; | |
966 | } | |
967 | } | |
968 | ||
e537352b | 969 | if (old_state != state) |
f2341e0a | 970 | log_unit_debug(UNIT(s), "Changed %s -> %s", service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 971 | |
e056b01d | 972 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
034c6ed7 LP |
973 | } |
974 | ||
36c16a7c LP |
975 | static usec_t service_coldplug_timeout(Service *s) { |
976 | assert(s); | |
977 | ||
978 | switch (s->deserialized_state) { | |
979 | ||
980 | case SERVICE_START_PRE: | |
981 | case SERVICE_START: | |
982 | case SERVICE_START_POST: | |
983 | case SERVICE_RELOAD: | |
984 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_start_usec); | |
985 | ||
986 | case SERVICE_RUNNING: | |
987 | return usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec); | |
988 | ||
989 | case SERVICE_STOP: | |
990 | case SERVICE_STOP_SIGABRT: | |
991 | case SERVICE_STOP_SIGTERM: | |
992 | case SERVICE_STOP_SIGKILL: | |
993 | case SERVICE_STOP_POST: | |
994 | case SERVICE_FINAL_SIGTERM: | |
995 | case SERVICE_FINAL_SIGKILL: | |
996 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_stop_usec); | |
997 | ||
998 | case SERVICE_AUTO_RESTART: | |
999 | return usec_add(UNIT(s)->inactive_enter_timestamp.monotonic, s->restart_usec); | |
1000 | ||
1001 | default: | |
1002 | return USEC_INFINITY; | |
1003 | } | |
1004 | } | |
1005 | ||
be847e82 | 1006 | static int service_coldplug(Unit *u) { |
a16e1123 LP |
1007 | Service *s = SERVICE(u); |
1008 | int r; | |
1009 | ||
1010 | assert(s); | |
1011 | assert(s->state == SERVICE_DEAD); | |
1012 | ||
930d2838 LP |
1013 | if (s->deserialized_state == s->state) |
1014 | return 0; | |
6c12b52e | 1015 | |
36c16a7c LP |
1016 | r = service_arm_timer(s, service_coldplug_timeout(s)); |
1017 | if (r < 0) | |
1018 | return r; | |
a911bb9a | 1019 | |
930d2838 LP |
1020 | if (s->main_pid > 0 && |
1021 | pid_is_unwaited(s->main_pid) && | |
1022 | ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) || | |
1023 | IN_SET(s->deserialized_state, | |
1024 | SERVICE_START, SERVICE_START_POST, | |
1025 | SERVICE_RUNNING, SERVICE_RELOAD, | |
1026 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1027 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { | |
1028 | r = unit_watch_pid(UNIT(s), s->main_pid); | |
1029 | if (r < 0) | |
1030 | return r; | |
1031 | } | |
bb242b7b | 1032 | |
930d2838 LP |
1033 | if (s->control_pid > 0 && |
1034 | pid_is_unwaited(s->control_pid) && | |
1035 | IN_SET(s->deserialized_state, | |
1036 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1037 | SERVICE_RELOAD, | |
1038 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1039 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
1040 | r = unit_watch_pid(UNIT(s), s->control_pid); | |
1041 | if (r < 0) | |
1042 | return r; | |
a16e1123 | 1043 | } |
92c1622e | 1044 | |
930d2838 LP |
1045 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
1046 | unit_watch_all_pids(UNIT(s)); | |
1047 | ||
1048 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) | |
1049 | service_start_watchdog(s); | |
1050 | ||
29206d46 LP |
1051 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
1052 | (void) unit_setup_dynamic_creds(u); | |
1053 | ||
3ebcd323 ZJS |
1054 | if (UNIT_ISSET(s->accept_socket)) { |
1055 | Socket* socket = SOCKET(UNIT_DEREF(s->accept_socket)); | |
1056 | ||
1057 | if (socket->max_connections_per_source > 0) { | |
1058 | SocketPeer *peer; | |
1059 | ||
1060 | /* Make a best-effort attempt at bumping the connection count */ | |
1061 | if (socket_acquire_peer(socket, s->socket_fd, &peer) > 0) { | |
1062 | socket_peer_unref(s->peer); | |
1063 | s->peer = peer; | |
1064 | } | |
1065 | } | |
1066 | } | |
1067 | ||
930d2838 | 1068 | service_set_state(s, s->deserialized_state); |
a16e1123 LP |
1069 | return 0; |
1070 | } | |
1071 | ||
4c47affc FB |
1072 | static int service_collect_fds(Service *s, |
1073 | int **fds, | |
1074 | char ***fd_names, | |
1075 | unsigned *n_storage_fds, | |
1076 | unsigned *n_socket_fds) { | |
1077 | ||
8dd4c05b | 1078 | _cleanup_strv_free_ char **rfd_names = NULL; |
a354329f | 1079 | _cleanup_free_ int *rfds = NULL; |
4c47affc FB |
1080 | unsigned rn_socket_fds = 0, rn_storage_fds = 0; |
1081 | int r; | |
44d8db9e LP |
1082 | |
1083 | assert(s); | |
1084 | assert(fds); | |
8dd4c05b | 1085 | assert(fd_names); |
9b141911 | 1086 | assert(n_socket_fds); |
44d8db9e | 1087 | |
8dd4c05b | 1088 | if (s->socket_fd >= 0) { |
6cf6bbc2 | 1089 | |
8dd4c05b | 1090 | /* Pass the per-connection socket */ |
57020a3a | 1091 | |
8dd4c05b LP |
1092 | rfds = new(int, 1); |
1093 | if (!rfds) | |
1094 | return -ENOMEM; | |
1095 | rfds[0] = s->socket_fd; | |
57020a3a | 1096 | |
8dd4c05b LP |
1097 | rfd_names = strv_new("connection", NULL); |
1098 | if (!rfd_names) | |
1099 | return -ENOMEM; | |
44d8db9e | 1100 | |
4c47affc | 1101 | rn_socket_fds = 1; |
8dd4c05b LP |
1102 | } else { |
1103 | Iterator i; | |
1104 | Unit *u; | |
44d8db9e | 1105 | |
8dd4c05b | 1106 | /* Pass all our configured sockets for singleton services */ |
44d8db9e | 1107 | |
8dd4c05b LP |
1108 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
1109 | _cleanup_free_ int *cfds = NULL; | |
1110 | Socket *sock; | |
1111 | int cn_fds; | |
44d8db9e | 1112 | |
8dd4c05b LP |
1113 | if (u->type != UNIT_SOCKET) |
1114 | continue; | |
44d8db9e | 1115 | |
8dd4c05b | 1116 | sock = SOCKET(u); |
a354329f | 1117 | |
8dd4c05b LP |
1118 | cn_fds = socket_collect_fds(sock, &cfds); |
1119 | if (cn_fds < 0) | |
1120 | return cn_fds; | |
44d8db9e | 1121 | |
8dd4c05b LP |
1122 | if (cn_fds <= 0) |
1123 | continue; | |
79c7626d | 1124 | |
8dd4c05b LP |
1125 | if (!rfds) { |
1126 | rfds = cfds; | |
4c47affc | 1127 | rn_socket_fds = cn_fds; |
8dd4c05b LP |
1128 | |
1129 | cfds = NULL; | |
1130 | } else { | |
1131 | int *t; | |
1132 | ||
4c47affc | 1133 | t = realloc(rfds, (rn_socket_fds + cn_fds) * sizeof(int)); |
8dd4c05b LP |
1134 | if (!t) |
1135 | return -ENOMEM; | |
1136 | ||
4c47affc | 1137 | memcpy(t + rn_socket_fds, cfds, cn_fds * sizeof(int)); |
8dd4c05b LP |
1138 | |
1139 | rfds = t; | |
4c47affc | 1140 | rn_socket_fds += cn_fds; |
8dd4c05b LP |
1141 | } |
1142 | ||
1143 | r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds); | |
1144 | if (r < 0) | |
1145 | return r; | |
44d8db9e LP |
1146 | } |
1147 | } | |
1148 | ||
a354329f LP |
1149 | if (s->n_fd_store > 0) { |
1150 | ServiceFDStore *fs; | |
4c47affc | 1151 | unsigned n_fds; |
8dd4c05b | 1152 | char **nl; |
a354329f LP |
1153 | int *t; |
1154 | ||
4c47affc | 1155 | t = realloc(rfds, (rn_socket_fds + s->n_fd_store) * sizeof(int)); |
a354329f LP |
1156 | if (!t) |
1157 | return -ENOMEM; | |
1158 | ||
1159 | rfds = t; | |
8dd4c05b | 1160 | |
4c47affc | 1161 | nl = realloc(rfd_names, (rn_socket_fds + s->n_fd_store + 1) * sizeof(char*)); |
8dd4c05b LP |
1162 | if (!nl) |
1163 | return -ENOMEM; | |
1164 | ||
1165 | rfd_names = nl; | |
4c47affc | 1166 | n_fds = rn_socket_fds; |
8dd4c05b LP |
1167 | |
1168 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
4c47affc FB |
1169 | rfds[n_fds] = fs->fd; |
1170 | rfd_names[n_fds] = strdup(strempty(fs->fdname)); | |
1171 | if (!rfd_names[n_fds]) | |
8dd4c05b LP |
1172 | return -ENOMEM; |
1173 | ||
4c47affc FB |
1174 | rn_storage_fds++; |
1175 | n_fds++; | |
8dd4c05b LP |
1176 | } |
1177 | ||
4c47affc | 1178 | rfd_names[n_fds] = NULL; |
a354329f LP |
1179 | } |
1180 | ||
44d8db9e | 1181 | *fds = rfds; |
8dd4c05b | 1182 | *fd_names = rfd_names; |
9b141911 | 1183 | *n_socket_fds = rn_socket_fds; |
4c47affc | 1184 | *n_storage_fds = rn_storage_fds; |
3e33402a | 1185 | |
a354329f | 1186 | rfds = NULL; |
8dd4c05b | 1187 | rfd_names = NULL; |
79c7626d | 1188 | |
4c47affc | 1189 | return 0; |
44d8db9e LP |
1190 | } |
1191 | ||
6375bd20 JW |
1192 | static bool service_exec_needs_notify_socket(Service *s, ExecFlags flags) { |
1193 | assert(s); | |
1194 | ||
1195 | /* Notifications are accepted depending on the process and | |
1196 | * the access setting of the service: | |
1197 | * process: \ access: NONE MAIN EXEC ALL | |
1198 | * main no yes yes yes | |
1199 | * control no no yes yes | |
1200 | * other (forked) no no no yes */ | |
1201 | ||
1202 | if (flags & EXEC_IS_CONTROL) | |
1203 | /* A control process */ | |
1204 | return IN_SET(s->notify_access, NOTIFY_EXEC, NOTIFY_ALL); | |
1205 | ||
1206 | /* We only spawn main processes and control processes, so any | |
1207 | * process that is not a control process is a main process */ | |
1208 | return s->notify_access != NOTIFY_NONE; | |
1209 | } | |
1210 | ||
81a2b7ce LP |
1211 | static int service_spawn( |
1212 | Service *s, | |
1213 | ExecCommand *c, | |
21b2ce39 | 1214 | usec_t timeout, |
c39f1ce2 | 1215 | ExecFlags flags, |
81a2b7ce LP |
1216 | pid_t *_pid) { |
1217 | ||
5125e762 | 1218 | _cleanup_strv_free_ char **final_env = NULL, **our_env = NULL, **fd_names = NULL; |
8dd4c05b | 1219 | _cleanup_free_ int *fds = NULL; |
4c47affc | 1220 | unsigned n_storage_fds = 0, n_socket_fds = 0, n_env = 0; |
8dd4c05b LP |
1221 | pid_t pid; |
1222 | ||
9fa95f85 | 1223 | ExecParameters exec_params = { |
c39f1ce2 LP |
1224 | .flags = flags, |
1225 | .stdin_fd = -1, | |
1226 | .stdout_fd = -1, | |
1227 | .stderr_fd = -1, | |
9fa95f85 | 1228 | }; |
034c6ed7 | 1229 | |
8dd4c05b LP |
1230 | int r; |
1231 | ||
034c6ed7 LP |
1232 | assert(s); |
1233 | assert(c); | |
1234 | assert(_pid); | |
1235 | ||
9c1a61ad LP |
1236 | if (flags & EXEC_IS_CONTROL) { |
1237 | /* If this is a control process, mask the permissions/chroot application if this is requested. */ | |
1238 | if (s->permissions_start_only) | |
1703fa41 | 1239 | exec_params.flags &= ~EXEC_APPLY_SANDBOXING; |
9c1a61ad LP |
1240 | if (s->root_directory_start_only) |
1241 | exec_params.flags &= ~EXEC_APPLY_CHROOT; | |
1242 | } | |
1243 | ||
5ad096b3 LP |
1244 | (void) unit_realize_cgroup(UNIT(s)); |
1245 | if (s->reset_cpu_usage) { | |
1246 | (void) unit_reset_cpu_usage(UNIT(s)); | |
1247 | s->reset_cpu_usage = false; | |
1248 | } | |
4ad49000 | 1249 | |
613b411c LP |
1250 | r = unit_setup_exec_runtime(UNIT(s)); |
1251 | if (r < 0) | |
36c16a7c | 1252 | return r; |
613b411c | 1253 | |
29206d46 LP |
1254 | r = unit_setup_dynamic_creds(UNIT(s)); |
1255 | if (r < 0) | |
1256 | return r; | |
1257 | ||
c39f1ce2 | 1258 | if ((flags & EXEC_PASS_FDS) || |
6cf6bbc2 LP |
1259 | s->exec_context.std_input == EXEC_INPUT_SOCKET || |
1260 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1261 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1262 | ||
4c47affc | 1263 | r = service_collect_fds(s, &fds, &fd_names, &n_storage_fds, &n_socket_fds); |
8dd4c05b | 1264 | if (r < 0) |
36c16a7c | 1265 | return r; |
6cf6bbc2 | 1266 | |
4c47affc | 1267 | log_unit_debug(UNIT(s), "Passing %i fds to service", n_storage_fds + n_socket_fds); |
4f2d528d | 1268 | } |
44d8db9e | 1269 | |
36c16a7c LP |
1270 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), timeout)); |
1271 | if (r < 0) | |
1272 | return r; | |
034c6ed7 | 1273 | |
136dc4c4 | 1274 | our_env = new0(char*, 9); |
36c16a7c LP |
1275 | if (!our_env) |
1276 | return -ENOMEM; | |
c952c6ec | 1277 | |
6375bd20 | 1278 | if (service_exec_needs_notify_socket(s, flags)) |
36c16a7c LP |
1279 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) |
1280 | return -ENOMEM; | |
c952c6ec | 1281 | |
2105e76a | 1282 | if (s->main_pid > 0) |
36c16a7c LP |
1283 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) |
1284 | return -ENOMEM; | |
2105e76a | 1285 | |
c39f1ce2 | 1286 | if (MANAGER_IS_USER(UNIT(s)->manager)) |
df0ff127 | 1287 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid_cached()) < 0) |
36c16a7c | 1288 | return -ENOMEM; |
97ae63e2 | 1289 | |
8dd4c05b | 1290 | if (s->socket_fd >= 0) { |
3b1c5241 SL |
1291 | union sockaddr_union sa; |
1292 | socklen_t salen = sizeof(sa); | |
1293 | ||
1294 | r = getpeername(s->socket_fd, &sa.sa, &salen); | |
f2dbd059 KR |
1295 | if (r < 0) { |
1296 | r = -errno; | |
1297 | ||
1298 | /* ENOTCONN is legitimate if the endpoint disappeared on shutdown. | |
1299 | * This connection is over, but the socket unit lives on. */ | |
7dd736ab | 1300 | if (r != -ENOTCONN || !IN_SET(s->control_command_id, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST)) |
f2dbd059 KR |
1301 | return r; |
1302 | } | |
3b1c5241 | 1303 | |
359a5bcf | 1304 | if (r == 0 && IN_SET(sa.sa.sa_family, AF_INET, AF_INET6, AF_VSOCK)) { |
3b1c5241 SL |
1305 | _cleanup_free_ char *addr = NULL; |
1306 | char *t; | |
882ac6e7 | 1307 | unsigned port; |
3b1c5241 SL |
1308 | |
1309 | r = sockaddr_pretty(&sa.sa, salen, true, false, &addr); | |
1310 | if (r < 0) | |
36c16a7c | 1311 | return r; |
3b1c5241 SL |
1312 | |
1313 | t = strappend("REMOTE_ADDR=", addr); | |
36c16a7c LP |
1314 | if (!t) |
1315 | return -ENOMEM; | |
3b1c5241 SL |
1316 | our_env[n_env++] = t; |
1317 | ||
882ac6e7 SH |
1318 | r = sockaddr_port(&sa.sa, &port); |
1319 | if (r < 0) | |
1320 | return r; | |
3b1c5241 | 1321 | |
36c16a7c LP |
1322 | if (asprintf(&t, "REMOTE_PORT=%u", port) < 0) |
1323 | return -ENOMEM; | |
3b1c5241 SL |
1324 | our_env[n_env++] = t; |
1325 | } | |
1326 | } | |
1327 | ||
136dc4c4 LP |
1328 | if (flags & EXEC_SETENV_RESULT) { |
1329 | if (asprintf(our_env + n_env++, "SERVICE_RESULT=%s", service_result_to_string(s->result)) < 0) | |
1330 | return -ENOMEM; | |
1331 | ||
1332 | if (s->main_exec_status.pid > 0 && | |
1333 | dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { | |
1334 | if (asprintf(our_env + n_env++, "EXIT_CODE=%s", sigchld_code_to_string(s->main_exec_status.code)) < 0) | |
1335 | return -ENOMEM; | |
1336 | ||
1337 | if (s->main_exec_status.code == CLD_EXITED) | |
1338 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%i", s->main_exec_status.status); | |
1339 | else | |
1340 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%s", signal_to_string(s->main_exec_status.status)); | |
1341 | if (r < 0) | |
1342 | return -ENOMEM; | |
1343 | } | |
1344 | } | |
1345 | ||
19bbdd98 | 1346 | manager_set_exec_params(UNIT(s)->manager, &exec_params); |
f0d47797 | 1347 | unit_set_exec_params(UNIT(s), &exec_params); |
3536f49e YW |
1348 | |
1349 | final_env = strv_env_merge(2, exec_params.environment, our_env, NULL); | |
36c16a7c LP |
1350 | if (!final_env) |
1351 | return -ENOMEM; | |
c952c6ec | 1352 | |
c39f1ce2 | 1353 | if ((flags & EXEC_IS_CONTROL) && UNIT(s)->cgroup_path) { |
f0d47797 LP |
1354 | exec_params.cgroup_path = strjoina(UNIT(s)->cgroup_path, "/control"); |
1355 | (void) cg_create(SYSTEMD_CGROUP_CONTROLLER, exec_params.cgroup_path); | |
1356 | } | |
4ad49000 | 1357 | |
5bf7569c LP |
1358 | /* System services should get a new keyring by default. */ |
1359 | SET_FLAG(exec_params.flags, EXEC_NEW_KEYRING, MANAGER_IS_SYSTEM(UNIT(s)->manager)); | |
ac647978 LP |
1360 | |
1361 | /* System D-Bus needs nss-systemd disabled, so that we don't deadlock */ | |
1362 | SET_FLAG(exec_params.flags, EXEC_NSS_BYPASS_BUS, | |
1363 | MANAGER_IS_SYSTEM(UNIT(s)->manager) && unit_has_name(UNIT(s), SPECIAL_DBUS_SERVICE)); | |
4ad49000 | 1364 | |
5125e762 | 1365 | exec_params.argv = c->argv; |
c39f1ce2 | 1366 | exec_params.environment = final_env; |
9fa95f85 | 1367 | exec_params.fds = fds; |
8dd4c05b | 1368 | exec_params.fd_names = fd_names; |
4c47affc | 1369 | exec_params.n_storage_fds = n_storage_fds; |
9b141911 | 1370 | exec_params.n_socket_fds = n_socket_fds; |
9fa95f85 | 1371 | exec_params.watchdog_usec = s->watchdog_usec; |
a34ceba6 | 1372 | exec_params.selinux_context_net = s->socket_fd_selinux_context_net; |
9fa95f85 DM |
1373 | if (s->type == SERVICE_IDLE) |
1374 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
a34ceba6 LP |
1375 | exec_params.stdin_fd = s->stdin_fd; |
1376 | exec_params.stdout_fd = s->stdout_fd; | |
1377 | exec_params.stderr_fd = s->stderr_fd; | |
9fa95f85 | 1378 | |
f2341e0a LP |
1379 | r = exec_spawn(UNIT(s), |
1380 | c, | |
9e2f7c11 | 1381 | &s->exec_context, |
9fa95f85 | 1382 | &exec_params, |
613b411c | 1383 | s->exec_runtime, |
29206d46 | 1384 | &s->dynamic_creds, |
9e2f7c11 | 1385 | &pid); |
9e2f7c11 | 1386 | if (r < 0) |
36c16a7c | 1387 | return r; |
034c6ed7 | 1388 | |
117dcc57 | 1389 | r = unit_watch_pid(UNIT(s), pid); |
e8b509d3 | 1390 | if (r < 0) /* FIXME: we need to do something here */ |
36c16a7c | 1391 | return r; |
034c6ed7 LP |
1392 | |
1393 | *_pid = pid; | |
1394 | ||
5cb5a6ff | 1395 | return 0; |
034c6ed7 LP |
1396 | } |
1397 | ||
80876c20 LP |
1398 | static int main_pid_good(Service *s) { |
1399 | assert(s); | |
1400 | ||
1401 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1402 | * don't know */ | |
1403 | ||
fc08079e | 1404 | /* If we know the pid file, then let's just check if it is |
80876c20 | 1405 | * still valid */ |
6dfa5494 LP |
1406 | if (s->main_pid_known) { |
1407 | ||
1408 | /* If it's an alien child let's check if it is still | |
1409 | * alive ... */ | |
62220cf7 | 1410 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1411 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1412 | |
1413 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1414 | * which we really should wait for to collect exit | |
1415 | * status and code */ | |
80876c20 | 1416 | return s->main_pid > 0; |
6dfa5494 | 1417 | } |
80876c20 LP |
1418 | |
1419 | /* We don't know the pid */ | |
1420 | return -EAGAIN; | |
1421 | } | |
1422 | ||
44a6b1b6 | 1423 | _pure_ static int control_pid_good(Service *s) { |
80876c20 LP |
1424 | assert(s); |
1425 | ||
1426 | return s->control_pid > 0; | |
1427 | } | |
1428 | ||
1429 | static int cgroup_good(Service *s) { | |
1430 | int r; | |
1431 | ||
1432 | assert(s); | |
1433 | ||
4ad49000 LP |
1434 | if (!UNIT(s)->cgroup_path) |
1435 | return 0; | |
1436 | ||
6f883237 | 1437 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path); |
117dcc57 | 1438 | if (r < 0) |
80876c20 LP |
1439 | return r; |
1440 | ||
1441 | return !r; | |
1442 | } | |
1443 | ||
a509f0e6 LP |
1444 | static bool service_shall_restart(Service *s) { |
1445 | assert(s); | |
1446 | ||
1447 | /* Don't restart after manual stops */ | |
1448 | if (s->forbid_restart) | |
1449 | return false; | |
1450 | ||
1451 | /* Never restart if this is configured as special exception */ | |
1452 | if (exit_status_set_test(&s->restart_prevent_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1453 | return false; | |
1454 | ||
1455 | /* Restart if the exit code/status are configured as restart triggers */ | |
1456 | if (exit_status_set_test(&s->restart_force_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1457 | return true; | |
1458 | ||
1459 | switch (s->restart) { | |
1460 | ||
1461 | case SERVICE_RESTART_NO: | |
1462 | return false; | |
1463 | ||
1464 | case SERVICE_RESTART_ALWAYS: | |
1465 | return true; | |
1466 | ||
1467 | case SERVICE_RESTART_ON_SUCCESS: | |
1468 | return s->result == SERVICE_SUCCESS; | |
1469 | ||
1470 | case SERVICE_RESTART_ON_FAILURE: | |
1471 | return s->result != SERVICE_SUCCESS; | |
1472 | ||
1473 | case SERVICE_RESTART_ON_ABNORMAL: | |
1474 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE); | |
1475 | ||
1476 | case SERVICE_RESTART_ON_WATCHDOG: | |
1477 | return s->result == SERVICE_FAILURE_WATCHDOG; | |
1478 | ||
1479 | case SERVICE_RESTART_ON_ABORT: | |
1480 | return IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP); | |
1481 | ||
1482 | default: | |
1483 | assert_not_reached("unknown restart setting"); | |
1484 | } | |
1485 | } | |
1486 | ||
53f47dfc YW |
1487 | static bool service_will_restart(Service *s) { |
1488 | assert(s); | |
1489 | ||
1490 | if (s->state == SERVICE_AUTO_RESTART) | |
1491 | return true; | |
1492 | if (!UNIT(s)->job) | |
1493 | return false; | |
1494 | if (UNIT(s)->job->type == JOB_START) | |
1495 | return true; | |
1496 | return false; | |
1497 | } | |
1498 | ||
f42806df | 1499 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 | 1500 | int r; |
0f52f8e5 | 1501 | |
034c6ed7 LP |
1502 | assert(s); |
1503 | ||
0f52f8e5 LP |
1504 | /* If there's a stop job queued before we enter the DEAD state, we shouldn't act on Restart=, in order to not |
1505 | * undo what has already been enqueued. */ | |
1506 | if (unit_stop_pending(UNIT(s))) | |
1507 | allow_restart = false; | |
1508 | ||
a0fef983 | 1509 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1510 | s->result = f; |
034c6ed7 | 1511 | |
0c7f15b3 MS |
1512 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1513 | ||
2928b0a8 | 1514 | if (s->result != SERVICE_SUCCESS) { |
f2341e0a | 1515 | log_unit_warning(UNIT(s), "Failed with result '%s'.", service_result_to_string(s->result)); |
87a47f99 | 1516 | emergency_action(UNIT(s)->manager, s->emergency_action, UNIT(s)->reboot_arg, "service failed"); |
2928b0a8 | 1517 | } |
93ae25e6 | 1518 | |
a509f0e6 | 1519 | if (allow_restart && service_shall_restart(s)) { |
034c6ed7 | 1520 | |
36c16a7c | 1521 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
f42806df | 1522 | if (r < 0) |
034c6ed7 LP |
1523 | goto fail; |
1524 | ||
1525 | service_set_state(s, SERVICE_AUTO_RESTART); | |
7a0019d3 LP |
1526 | } else |
1527 | /* If we shan't restart, then flush out the restart counter. But don't do that immediately, so that the | |
1528 | * user can still introspect the counter. Do so on the next start. */ | |
1529 | s->flush_n_restarts = true; | |
034c6ed7 | 1530 | |
f2341e0a | 1531 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1532 | s->forbid_restart = false; |
1533 | ||
e66cf1a3 | 1534 | /* We want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1535 | exec_runtime_destroy(s->exec_runtime); |
1536 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1537 | |
53f47dfc YW |
1538 | if (s->exec_context.runtime_directory_preserve_mode == EXEC_PRESERVE_NO || |
1539 | (s->exec_context.runtime_directory_preserve_mode == EXEC_PRESERVE_RESTART && !service_will_restart(s))) | |
1540 | /* Also, remove the runtime directory */ | |
3536f49e | 1541 | exec_context_destroy_runtime_directory(&s->exec_context, UNIT(s)->manager->prefix[EXEC_DIRECTORY_RUNTIME]); |
e66cf1a3 | 1542 | |
00d9ef85 LP |
1543 | /* Get rid of the IPC bits of the user */ |
1544 | unit_unref_uid_gid(UNIT(s), true); | |
1545 | ||
29206d46 LP |
1546 | /* Release the user, and destroy it if we are the only remaining owner */ |
1547 | dynamic_creds_destroy(&s->dynamic_creds); | |
1548 | ||
9285c9ff LN |
1549 | /* Try to delete the pid file. At this point it will be |
1550 | * out-of-date, and some software might be confused by it, so | |
1551 | * let's remove it. */ | |
1552 | if (s->pid_file) | |
fabab190 | 1553 | (void) unlink(s->pid_file); |
9285c9ff | 1554 | |
034c6ed7 LP |
1555 | return; |
1556 | ||
1557 | fail: | |
f2341e0a | 1558 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1559 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1560 | } |
1561 | ||
f42806df | 1562 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1563 | int r; |
1564 | assert(s); | |
1565 | ||
a0fef983 | 1566 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1567 | s->result = f; |
034c6ed7 | 1568 | |
5e94833f | 1569 | service_unwatch_control_pid(s); |
a911bb9a | 1570 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1571 | |
117dcc57 ZJS |
1572 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1573 | if (s->control_command) { | |
867b3b7d LP |
1574 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1575 | ||
ecedd90f LP |
1576 | r = service_spawn(s, |
1577 | s->control_command, | |
21b2ce39 | 1578 | s->timeout_stop_usec, |
1703fa41 | 1579 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_IS_CONTROL|EXEC_SETENV_RESULT, |
ecedd90f LP |
1580 | &s->control_pid); |
1581 | if (r < 0) | |
034c6ed7 LP |
1582 | goto fail; |
1583 | ||
80876c20 LP |
1584 | service_set_state(s, SERVICE_STOP_POST); |
1585 | } else | |
ac84d1fb | 1586 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1587 | |
1588 | return; | |
1589 | ||
1590 | fail: | |
f2341e0a | 1591 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1592 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1593 | } |
1594 | ||
4940c0b0 LP |
1595 | static int state_to_kill_operation(ServiceState state) { |
1596 | switch (state) { | |
1597 | ||
1598 | case SERVICE_STOP_SIGABRT: | |
1599 | return KILL_ABORT; | |
1600 | ||
1601 | case SERVICE_STOP_SIGTERM: | |
1602 | case SERVICE_FINAL_SIGTERM: | |
1603 | return KILL_TERMINATE; | |
1604 | ||
1605 | case SERVICE_STOP_SIGKILL: | |
1606 | case SERVICE_FINAL_SIGKILL: | |
1607 | return KILL_KILL; | |
1608 | ||
1609 | default: | |
1610 | return _KILL_OPERATION_INVALID; | |
1611 | } | |
1612 | } | |
1613 | ||
f42806df | 1614 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1615 | int r; |
034c6ed7 LP |
1616 | |
1617 | assert(s); | |
1618 | ||
a0fef983 | 1619 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1620 | s->result = f; |
034c6ed7 | 1621 | |
a911bb9a LP |
1622 | unit_watch_all_pids(UNIT(s)); |
1623 | ||
cd2086fe LP |
1624 | r = unit_kill_context( |
1625 | UNIT(s), | |
1626 | &s->kill_context, | |
4940c0b0 | 1627 | state_to_kill_operation(state), |
cd2086fe LP |
1628 | s->main_pid, |
1629 | s->control_pid, | |
1630 | s->main_pid_alien); | |
ac84d1fb | 1631 | |
cd2086fe LP |
1632 | if (r < 0) |
1633 | goto fail; | |
034c6ed7 | 1634 | |
cd2086fe | 1635 | if (r > 0) { |
36c16a7c LP |
1636 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
1637 | if (r < 0) | |
1638 | goto fail; | |
d6ea93e3 | 1639 | |
80876c20 | 1640 | service_set_state(s, state); |
1db0db4b | 1641 | } else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1642 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
1db0db4b | 1643 | else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1644 | service_enter_stop_post(s, SERVICE_SUCCESS); |
1db0db4b | 1645 | else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb | 1646 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 1647 | else |
f42806df | 1648 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1649 | |
1650 | return; | |
1651 | ||
1652 | fail: | |
f2341e0a | 1653 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 1654 | |
a00973af | 1655 | if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1656 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1657 | else |
f42806df | 1658 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1659 | } |
1660 | ||
308d72dc LP |
1661 | static void service_enter_stop_by_notify(Service *s) { |
1662 | assert(s); | |
1663 | ||
1664 | unit_watch_all_pids(UNIT(s)); | |
1665 | ||
36c16a7c | 1666 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
308d72dc | 1667 | |
6041a7ee MS |
1668 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
1669 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
1670 | } |
1671 | ||
f42806df | 1672 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1673 | int r; |
5925dd3c | 1674 | |
034c6ed7 LP |
1675 | assert(s); |
1676 | ||
a0fef983 | 1677 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1678 | s->result = f; |
034c6ed7 | 1679 | |
5e94833f | 1680 | service_unwatch_control_pid(s); |
a911bb9a | 1681 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1682 | |
117dcc57 ZJS |
1683 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1684 | if (s->control_command) { | |
867b3b7d LP |
1685 | s->control_command_id = SERVICE_EXEC_STOP; |
1686 | ||
ecedd90f LP |
1687 | r = service_spawn(s, |
1688 | s->control_command, | |
21b2ce39 | 1689 | s->timeout_stop_usec, |
1703fa41 | 1690 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_SETENV_RESULT, |
ecedd90f LP |
1691 | &s->control_pid); |
1692 | if (r < 0) | |
034c6ed7 LP |
1693 | goto fail; |
1694 | ||
80876c20 LP |
1695 | service_set_state(s, SERVICE_STOP); |
1696 | } else | |
f42806df | 1697 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1698 | |
1699 | return; | |
1700 | ||
1701 | fail: | |
f2341e0a | 1702 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 1703 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1704 | } |
1705 | ||
957c3cf9 LP |
1706 | static bool service_good(Service *s) { |
1707 | int main_pid_ok; | |
1708 | assert(s); | |
1709 | ||
1710 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
1711 | return false; | |
1712 | ||
1713 | main_pid_ok = main_pid_good(s); | |
1714 | if (main_pid_ok > 0) /* It's alive */ | |
1715 | return true; | |
1716 | if (main_pid_ok == 0) /* It's dead */ | |
1717 | return false; | |
1718 | ||
1719 | /* OK, we don't know anything about the main PID, maybe | |
1720 | * because there is none. Let's check the control group | |
1721 | * instead. */ | |
1722 | ||
1723 | return cgroup_good(s) != 0; | |
1724 | } | |
1725 | ||
f42806df | 1726 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
1727 | assert(s); |
1728 | ||
a0fef983 | 1729 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1730 | s->result = f; |
80876c20 | 1731 | |
089b64d5 LP |
1732 | service_unwatch_control_pid(s); |
1733 | ||
957c3cf9 | 1734 | if (service_good(s)) { |
308d72dc LP |
1735 | |
1736 | /* If there are any queued up sd_notify() | |
1737 | * notifications, process them now */ | |
1738 | if (s->notify_state == NOTIFY_RELOADING) | |
1739 | service_enter_reload_by_notify(s); | |
1740 | else if (s->notify_state == NOTIFY_STOPPING) | |
1741 | service_enter_stop_by_notify(s); | |
36c16a7c | 1742 | else { |
308d72dc | 1743 | service_set_state(s, SERVICE_RUNNING); |
36c16a7c LP |
1744 | service_arm_timer(s, usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec)); |
1745 | } | |
308d72dc | 1746 | |
3d474ef7 | 1747 | } else if (f != SERVICE_SUCCESS) |
c3fda31d | 1748 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3d474ef7 | 1749 | else if (s->remain_after_exit) |
80876c20 LP |
1750 | service_set_state(s, SERVICE_EXITED); |
1751 | else | |
f42806df | 1752 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
1753 | } |
1754 | ||
034c6ed7 LP |
1755 | static void service_enter_start_post(Service *s) { |
1756 | int r; | |
1757 | assert(s); | |
1758 | ||
5e94833f | 1759 | service_unwatch_control_pid(s); |
842129f5 | 1760 | service_reset_watchdog(s); |
bb242b7b | 1761 | |
117dcc57 ZJS |
1762 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
1763 | if (s->control_command) { | |
867b3b7d LP |
1764 | s->control_command_id = SERVICE_EXEC_START_POST; |
1765 | ||
ecedd90f LP |
1766 | r = service_spawn(s, |
1767 | s->control_command, | |
21b2ce39 | 1768 | s->timeout_start_usec, |
1703fa41 | 1769 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL, |
ecedd90f LP |
1770 | &s->control_pid); |
1771 | if (r < 0) | |
034c6ed7 LP |
1772 | goto fail; |
1773 | ||
80876c20 LP |
1774 | service_set_state(s, SERVICE_START_POST); |
1775 | } else | |
f42806df | 1776 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1777 | |
1778 | return; | |
1779 | ||
1780 | fail: | |
f2341e0a | 1781 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 1782 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1783 | } |
1784 | ||
4ad49000 LP |
1785 | static void service_kill_control_processes(Service *s) { |
1786 | char *p; | |
1787 | ||
1788 | if (!UNIT(s)->cgroup_path) | |
1789 | return; | |
1790 | ||
63c372cb | 1791 | p = strjoina(UNIT(s)->cgroup_path, "/control"); |
1d98fef1 | 1792 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, CGROUP_SIGCONT|CGROUP_IGNORE_SELF|CGROUP_REMOVE, NULL, NULL, NULL); |
4ad49000 LP |
1793 | } |
1794 | ||
034c6ed7 | 1795 | static void service_enter_start(Service *s) { |
4ad49000 | 1796 | ExecCommand *c; |
36c16a7c | 1797 | usec_t timeout; |
034c6ed7 LP |
1798 | pid_t pid; |
1799 | int r; | |
1800 | ||
1801 | assert(s); | |
1802 | ||
41efeaec LP |
1803 | service_unwatch_control_pid(s); |
1804 | service_unwatch_main_pid(s); | |
80876c20 | 1805 | |
8f53a7b8 LP |
1806 | /* We want to ensure that nobody leaks processes from |
1807 | * START_PRE here, so let's go on a killing spree, People | |
1808 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 1809 | service_kill_control_processes(s); |
8f53a7b8 | 1810 | |
867b3b7d LP |
1811 | if (s->type == SERVICE_FORKING) { |
1812 | s->control_command_id = SERVICE_EXEC_START; | |
1813 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
1814 | ||
1815 | s->main_command = NULL; | |
1816 | } else { | |
1817 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
1818 | s->control_command = NULL; | |
1819 | ||
1820 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
1821 | } | |
34e9ba66 | 1822 | |
96fb8242 | 1823 | if (!c) { |
47fffb35 LP |
1824 | if (s->type != SERVICE_ONESHOT) { |
1825 | /* There's no command line configured for the main command? Hmm, that is strange. This can only | |
1826 | * happen if the configuration changes at runtime. In this case, let's enter a failure | |
1827 | * state. */ | |
1828 | log_unit_error(UNIT(s), "There's no 'start' task anymore we could start: %m"); | |
1829 | r = -ENXIO; | |
1830 | goto fail; | |
1831 | } | |
1832 | ||
96fb8242 LP |
1833 | service_enter_start_post(s); |
1834 | return; | |
1835 | } | |
1836 | ||
36c16a7c LP |
1837 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) |
1838 | /* For simple + idle this is the main process. We don't apply any timeout here, but | |
1839 | * service_enter_running() will later apply the .runtime_max_usec timeout. */ | |
1840 | timeout = USEC_INFINITY; | |
1841 | else | |
1842 | timeout = s->timeout_start_usec; | |
1843 | ||
ecedd90f LP |
1844 | r = service_spawn(s, |
1845 | c, | |
36c16a7c | 1846 | timeout, |
1703fa41 | 1847 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
1848 | &pid); |
1849 | if (r < 0) | |
034c6ed7 LP |
1850 | goto fail; |
1851 | ||
36c16a7c | 1852 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) { |
034c6ed7 LP |
1853 | /* For simple services we immediately start |
1854 | * the START_POST binaries. */ | |
1855 | ||
5925dd3c | 1856 | service_set_main_pid(s, pid); |
034c6ed7 LP |
1857 | service_enter_start_post(s); |
1858 | ||
1859 | } else if (s->type == SERVICE_FORKING) { | |
1860 | ||
1861 | /* For forking services we wait until the start | |
1862 | * process exited. */ | |
1863 | ||
e55224ca | 1864 | s->control_pid = pid; |
80876c20 LP |
1865 | service_set_state(s, SERVICE_START); |
1866 | ||
36c16a7c | 1867 | } else if (IN_SET(s->type, SERVICE_ONESHOT, SERVICE_DBUS, SERVICE_NOTIFY)) { |
7d55e835 | 1868 | |
34e9ba66 | 1869 | /* For oneshot services we wait until the start |
7d55e835 LP |
1870 | * process exited, too, but it is our main process. */ |
1871 | ||
05e343b7 | 1872 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
1873 | * but wait for the bus name to appear on the |
1874 | * bus. Notify services are similar. */ | |
05e343b7 | 1875 | |
5925dd3c | 1876 | service_set_main_pid(s, pid); |
80876c20 | 1877 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
1878 | } else |
1879 | assert_not_reached("Unknown service type"); | |
1880 | ||
1881 | return; | |
1882 | ||
1883 | fail: | |
f2341e0a | 1884 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
c3fda31d | 1885 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1886 | } |
1887 | ||
1888 | static void service_enter_start_pre(Service *s) { | |
1889 | int r; | |
1890 | ||
1891 | assert(s); | |
1892 | ||
5e94833f LP |
1893 | service_unwatch_control_pid(s); |
1894 | ||
117dcc57 ZJS |
1895 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
1896 | if (s->control_command) { | |
8f53a7b8 LP |
1897 | /* Before we start anything, let's clear up what might |
1898 | * be left from previous runs. */ | |
4ad49000 | 1899 | service_kill_control_processes(s); |
8f53a7b8 | 1900 | |
867b3b7d LP |
1901 | s->control_command_id = SERVICE_EXEC_START_PRE; |
1902 | ||
ecedd90f LP |
1903 | r = service_spawn(s, |
1904 | s->control_command, | |
21b2ce39 | 1905 | s->timeout_start_usec, |
1703fa41 | 1906 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, |
ecedd90f LP |
1907 | &s->control_pid); |
1908 | if (r < 0) | |
034c6ed7 LP |
1909 | goto fail; |
1910 | ||
80876c20 LP |
1911 | service_set_state(s, SERVICE_START_PRE); |
1912 | } else | |
034c6ed7 LP |
1913 | service_enter_start(s); |
1914 | ||
1915 | return; | |
1916 | ||
1917 | fail: | |
f2341e0a | 1918 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 1919 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1920 | } |
1921 | ||
1922 | static void service_enter_restart(Service *s) { | |
4afd3348 | 1923 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 1924 | int r; |
398ef8ba | 1925 | |
034c6ed7 LP |
1926 | assert(s); |
1927 | ||
a8bb2e65 LP |
1928 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
1929 | /* Don't restart things if we are going down anyway */ | |
f2341e0a | 1930 | log_unit_info(UNIT(s), "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 1931 | |
36c16a7c | 1932 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
a8bb2e65 | 1933 | if (r < 0) |
2edfa366 | 1934 | goto fail; |
feae8adb DW |
1935 | |
1936 | return; | |
2edfa366 LP |
1937 | } |
1938 | ||
48bb5876 DW |
1939 | /* Any units that are bound to this service must also be |
1940 | * restarted. We use JOB_RESTART (instead of the more obvious | |
1941 | * JOB_START) here so that those dependency jobs will be added | |
1942 | * as well. */ | |
4bd29fe5 | 1943 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, &error, NULL); |
48bb5876 | 1944 | if (r < 0) |
034c6ed7 LP |
1945 | goto fail; |
1946 | ||
7a0019d3 LP |
1947 | /* Count the jobs we enqueue for restarting. This counter is maintained as long as the unit isn't fully |
1948 | * stopped, i.e. as long as it remains up or remains in auto-start states. The use can reset the counter | |
1949 | * explicitly however via the usual "systemctl reset-failure" logic. */ | |
1950 | s->n_restarts ++; | |
1951 | s->flush_n_restarts = false; | |
1952 | ||
1953 | log_struct(LOG_INFO, | |
1954 | "MESSAGE_ID=" SD_MESSAGE_UNIT_RESTART_SCHEDULED_STR, | |
1955 | LOG_UNIT_ID(UNIT(s)), | |
1956 | LOG_UNIT_MESSAGE(UNIT(s), "Scheduled restart job, restart counter is at %u.", s->n_restarts), | |
1957 | "N_RESTARTS=%u", s->n_restarts, | |
1958 | NULL); | |
1959 | ||
1960 | /* Notify clients about changed restart counter */ | |
1961 | unit_add_to_dbus_queue(UNIT(s)); | |
1962 | ||
a8bb2e65 LP |
1963 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
1964 | * it will be canceled as part of the service_stop() call that | |
1965 | * is executed as part of JOB_RESTART. */ | |
1966 | ||
034c6ed7 LP |
1967 | return; |
1968 | ||
1969 | fail: | |
f2341e0a | 1970 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, -r)); |
f42806df | 1971 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1972 | } |
1973 | ||
308d72dc | 1974 | static void service_enter_reload_by_notify(Service *s) { |
15d167f8 JW |
1975 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
1976 | int r; | |
1977 | ||
308d72dc LP |
1978 | assert(s); |
1979 | ||
36c16a7c | 1980 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_start_usec)); |
308d72dc | 1981 | service_set_state(s, SERVICE_RELOAD); |
15d167f8 JW |
1982 | |
1983 | /* service_enter_reload_by_notify is never called during a reload, thus no loops are possible. */ | |
1984 | r = manager_propagate_reload(UNIT(s)->manager, UNIT(s), JOB_FAIL, &error); | |
1985 | if (r < 0) | |
1986 | log_unit_warning(UNIT(s), "Failed to schedule propagation of reload: %s", bus_error_message(&error, -r)); | |
308d72dc LP |
1987 | } |
1988 | ||
034c6ed7 LP |
1989 | static void service_enter_reload(Service *s) { |
1990 | int r; | |
1991 | ||
1992 | assert(s); | |
1993 | ||
5e94833f | 1994 | service_unwatch_control_pid(s); |
95c906ae | 1995 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 1996 | |
117dcc57 ZJS |
1997 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
1998 | if (s->control_command) { | |
867b3b7d LP |
1999 | s->control_command_id = SERVICE_EXEC_RELOAD; |
2000 | ||
ecedd90f LP |
2001 | r = service_spawn(s, |
2002 | s->control_command, | |
21b2ce39 | 2003 | s->timeout_start_usec, |
1703fa41 | 2004 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL, |
ecedd90f LP |
2005 | &s->control_pid); |
2006 | if (r < 0) | |
034c6ed7 LP |
2007 | goto fail; |
2008 | ||
80876c20 LP |
2009 | service_set_state(s, SERVICE_RELOAD); |
2010 | } else | |
f42806df | 2011 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2012 | |
2013 | return; | |
2014 | ||
2015 | fail: | |
f2341e0a | 2016 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
2017 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2018 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2019 | } |
2020 | ||
f42806df | 2021 | static void service_run_next_control(Service *s) { |
36c16a7c | 2022 | usec_t timeout; |
034c6ed7 LP |
2023 | int r; |
2024 | ||
2025 | assert(s); | |
2026 | assert(s->control_command); | |
2027 | assert(s->control_command->command_next); | |
2028 | ||
34e9ba66 | 2029 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2030 | |
34e9ba66 | 2031 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2032 | service_unwatch_control_pid(s); |
2033 | ||
36c16a7c LP |
2034 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
2035 | timeout = s->timeout_start_usec; | |
2036 | else | |
2037 | timeout = s->timeout_stop_usec; | |
2038 | ||
ecedd90f LP |
2039 | r = service_spawn(s, |
2040 | s->control_command, | |
36c16a7c | 2041 | timeout, |
1703fa41 | 2042 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL| |
136dc4c4 LP |
2043 | (IN_SET(s->control_command_id, SERVICE_EXEC_START_PRE, SERVICE_EXEC_STOP_POST) ? EXEC_APPLY_TTY_STDIN : 0)| |
2044 | (IN_SET(s->control_command_id, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST) ? EXEC_SETENV_RESULT : 0), | |
ecedd90f LP |
2045 | &s->control_pid); |
2046 | if (r < 0) | |
034c6ed7 LP |
2047 | goto fail; |
2048 | ||
2049 | return; | |
2050 | ||
2051 | fail: | |
f2341e0a | 2052 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 2053 | |
c3fda31d | 2054 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_STOP)) |
f42806df | 2055 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2056 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2057 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2058 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2059 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2060 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2061 | } else |
f42806df | 2062 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2063 | } |
2064 | ||
f42806df | 2065 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2066 | pid_t pid; |
2067 | int r; | |
2068 | ||
2069 | assert(s); | |
867b3b7d LP |
2070 | assert(s->main_command); |
2071 | assert(s->main_command->command_next); | |
2072 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2073 | |
867b3b7d | 2074 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2075 | service_unwatch_main_pid(s); |
2076 | ||
ecedd90f LP |
2077 | r = service_spawn(s, |
2078 | s->main_command, | |
21b2ce39 | 2079 | s->timeout_start_usec, |
1703fa41 | 2080 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
2081 | &pid); |
2082 | if (r < 0) | |
34e9ba66 LP |
2083 | goto fail; |
2084 | ||
2085 | service_set_main_pid(s, pid); | |
2086 | ||
2087 | return; | |
2088 | ||
2089 | fail: | |
f2341e0a | 2090 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 2091 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2092 | } |
2093 | ||
87f0e418 LP |
2094 | static int service_start(Unit *u) { |
2095 | Service *s = SERVICE(u); | |
07299350 | 2096 | int r; |
5cb5a6ff LP |
2097 | |
2098 | assert(s); | |
2099 | ||
034c6ed7 LP |
2100 | /* We cannot fulfill this request right now, try again later |
2101 | * please! */ | |
a00973af LP |
2102 | if (IN_SET(s->state, |
2103 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2104 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
5cb5a6ff LP |
2105 | return -EAGAIN; |
2106 | ||
034c6ed7 | 2107 | /* Already on it! */ |
a00973af | 2108 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
2109 | return 0; |
2110 | ||
2e9d6c12 | 2111 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2112 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2113 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2114 | * service should be manually restarted, not started. We |
2115 | * simply return EAGAIN here, so that any start jobs stay | |
2116 | * queued, and assume that the auto restart timer will | |
2117 | * eventually trigger the restart. */ | |
2118 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2119 | return -EAGAIN; |
2e9d6c12 | 2120 | |
a00973af | 2121 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 2122 | |
07299350 LP |
2123 | /* Make sure we don't enter a busy loop of some kind. */ |
2124 | r = unit_start_limit_test(u); | |
2125 | if (r < 0) { | |
2126 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT_HIT, false); | |
2127 | return r; | |
2128 | } | |
2129 | ||
4b58153d LP |
2130 | r = unit_acquire_invocation_id(u); |
2131 | if (r < 0) | |
2132 | return r; | |
2133 | ||
f42806df LP |
2134 | s->result = SERVICE_SUCCESS; |
2135 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2136 | s->main_pid_known = false; |
6dfa5494 | 2137 | s->main_pid_alien = false; |
47342320 | 2138 | s->forbid_restart = false; |
5ad096b3 | 2139 | s->reset_cpu_usage = true; |
034c6ed7 | 2140 | |
a1e58e8e | 2141 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
2142 | s->status_errno = 0; |
2143 | ||
308d72dc LP |
2144 | s->notify_state = NOTIFY_UNKNOWN; |
2145 | ||
2787d83c M |
2146 | s->watchdog_override_enable = false; |
2147 | s->watchdog_override_usec = 0; | |
2148 | ||
7a0019d3 LP |
2149 | /* This is not an automatic restart? Flush the restart counter then */ |
2150 | if (s->flush_n_restarts) { | |
2151 | s->n_restarts = 0; | |
2152 | s->flush_n_restarts = false; | |
2153 | } | |
2154 | ||
034c6ed7 | 2155 | service_enter_start_pre(s); |
82a2b6bb | 2156 | return 1; |
5cb5a6ff LP |
2157 | } |
2158 | ||
87f0e418 LP |
2159 | static int service_stop(Unit *u) { |
2160 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2161 | |
2162 | assert(s); | |
2163 | ||
a509f0e6 | 2164 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2165 | s->forbid_restart = true; |
034c6ed7 | 2166 | |
e537352b | 2167 | /* Already on it */ |
a00973af LP |
2168 | if (IN_SET(s->state, |
2169 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2170 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
e537352b LP |
2171 | return 0; |
2172 | ||
f0c7b229 | 2173 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2174 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2175 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2176 | return 0; |
2177 | } | |
2178 | ||
3f6c78dc LP |
2179 | /* If there's already something running we go directly into |
2180 | * kill mode. */ | |
a00973af | 2181 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD)) { |
f42806df | 2182 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2183 | return 0; |
2184 | } | |
5cb5a6ff | 2185 | |
a00973af | 2186 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2187 | |
f42806df | 2188 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2189 | return 1; |
5cb5a6ff LP |
2190 | } |
2191 | ||
87f0e418 LP |
2192 | static int service_reload(Unit *u) { |
2193 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2194 | |
2195 | assert(s); | |
2196 | ||
80876c20 | 2197 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
2198 | |
2199 | service_enter_reload(s); | |
2d018ae2 | 2200 | return 1; |
5cb5a6ff LP |
2201 | } |
2202 | ||
44a6b1b6 | 2203 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2204 | Service *s = SERVICE(u); |
034c6ed7 LP |
2205 | |
2206 | assert(s); | |
2207 | ||
2208 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2209 | } | |
2210 | ||
e266c068 MS |
2211 | static unsigned service_exec_command_index(Unit *u, ServiceExecCommand id, ExecCommand *current) { |
2212 | Service *s = SERVICE(u); | |
2213 | unsigned idx = 0; | |
2214 | ExecCommand *first, *c; | |
2215 | ||
2216 | assert(s); | |
2217 | ||
2218 | first = s->exec_command[id]; | |
2219 | ||
2220 | /* Figure out where we are in the list by walking back to the beginning */ | |
2221 | for (c = current; c != first; c = c->command_prev) | |
2222 | idx++; | |
2223 | ||
2224 | return idx; | |
2225 | } | |
2226 | ||
2227 | static int service_serialize_exec_command(Unit *u, FILE *f, ExecCommand *command) { | |
2228 | Service *s = SERVICE(u); | |
2229 | ServiceExecCommand id; | |
2230 | unsigned idx; | |
2231 | const char *type; | |
2232 | char **arg; | |
e266c068 MS |
2233 | _cleanup_free_ char *args = NULL, *p = NULL; |
2234 | size_t allocated = 0, length = 0; | |
2235 | ||
2236 | assert(s); | |
2237 | assert(f); | |
2238 | ||
2239 | if (!command) | |
2240 | return 0; | |
2241 | ||
2242 | if (command == s->control_command) { | |
2243 | type = "control"; | |
2244 | id = s->control_command_id; | |
2245 | } else { | |
2246 | type = "main"; | |
2247 | id = SERVICE_EXEC_START; | |
2248 | } | |
2249 | ||
2250 | idx = service_exec_command_index(u, id, command); | |
2251 | ||
2252 | STRV_FOREACH(arg, command->argv) { | |
2253 | size_t n; | |
2254 | _cleanup_free_ char *e = NULL; | |
2255 | ||
2256 | e = xescape(*arg, WHITESPACE); | |
2257 | if (!e) | |
2258 | return -ENOMEM; | |
2259 | ||
2260 | n = strlen(e); | |
2261 | if (!GREEDY_REALLOC(args, allocated, length + 1 + n + 1)) | |
2262 | return -ENOMEM; | |
2263 | ||
2264 | if (length > 0) | |
2265 | args[length++] = ' '; | |
2266 | ||
2267 | memcpy(args + length, e, n); | |
2268 | length += n; | |
2269 | } | |
2270 | ||
2271 | if (!GREEDY_REALLOC(args, allocated, length + 1)) | |
2272 | return -ENOMEM; | |
2273 | args[length++] = 0; | |
2274 | ||
2275 | p = xescape(command->path, WHITESPACE); | |
2276 | if (!p) | |
2277 | return -ENOMEM; | |
2278 | ||
2279 | fprintf(f, "%s-command=%s %u %s %s\n", type, service_exec_command_to_string(id), idx, p, args); | |
2280 | ||
2281 | return 0; | |
2282 | } | |
2283 | ||
a16e1123 LP |
2284 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2285 | Service *s = SERVICE(u); | |
2339fc93 | 2286 | ServiceFDStore *fs; |
a34ceba6 | 2287 | int r; |
a16e1123 LP |
2288 | |
2289 | assert(u); | |
2290 | assert(f); | |
2291 | assert(fds); | |
2292 | ||
2293 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
2294 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
2295 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2296 | |
2297 | if (s->control_pid > 0) | |
f06db334 | 2298 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2299 | |
5925dd3c | 2300 | if (s->main_pid_known && s->main_pid > 0) |
ccd06097 | 2301 | unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 LP |
2302 | |
2303 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
de1d4f9b | 2304 | unit_serialize_item(u, f, "bus-name-good", yes_no(s->bus_name_good)); |
d8ccf5fd | 2305 | unit_serialize_item(u, f, "bus-name-owner", s->bus_name_owner); |
a16e1123 | 2306 | |
7a0019d3 | 2307 | unit_serialize_item_format(u, f, "n-restarts", "%u", s->n_restarts); |
7f923884 | 2308 | unit_serialize_item(u, f, "flush-n-restarts", yes_no(s->flush_n_restarts)); |
7a0019d3 | 2309 | |
a34ceba6 LP |
2310 | r = unit_serialize_item_escaped(u, f, "status-text", s->status_text); |
2311 | if (r < 0) | |
2312 | return r; | |
3a2776bc | 2313 | |
e266c068 MS |
2314 | service_serialize_exec_command(u, f, s->control_command); |
2315 | service_serialize_exec_command(u, f, s->main_command); | |
a16e1123 | 2316 | |
a34ceba6 LP |
2317 | r = unit_serialize_item_fd(u, f, fds, "stdin-fd", s->stdin_fd); |
2318 | if (r < 0) | |
2319 | return r; | |
2320 | r = unit_serialize_item_fd(u, f, fds, "stdout-fd", s->stdout_fd); | |
2321 | if (r < 0) | |
2322 | return r; | |
2323 | r = unit_serialize_item_fd(u, f, fds, "stderr-fd", s->stderr_fd); | |
2324 | if (r < 0) | |
2325 | return r; | |
e44da745 | 2326 | |
9dfb64f8 ZJS |
2327 | if (UNIT_ISSET(s->accept_socket)) { |
2328 | r = unit_serialize_item(u, f, "accept-socket", UNIT_DEREF(s->accept_socket)->id); | |
2329 | if (r < 0) | |
2330 | return r; | |
2331 | } | |
2332 | ||
a34ceba6 | 2333 | r = unit_serialize_item_fd(u, f, fds, "socket-fd", s->socket_fd); |
a34ceba6 LP |
2334 | if (r < 0) |
2335 | return r; | |
e44da745 | 2336 | |
2339fc93 | 2337 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2338 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2339 | int copy; |
2340 | ||
2341 | copy = fdset_put_dup(fds, fs->fd); | |
2342 | if (copy < 0) | |
2343 | return copy; | |
2344 | ||
8dd4c05b LP |
2345 | c = cescape(fs->fdname); |
2346 | ||
2347 | unit_serialize_item_format(u, f, "fd-store-fd", "%i %s", copy, strempty(c)); | |
2339fc93 LP |
2348 | } |
2349 | ||
ecdbca40 | 2350 | if (s->main_exec_status.pid > 0) { |
f06db334 LP |
2351 | unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2352 | dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2353 | dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2354 | |
799fd0fd | 2355 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
f06db334 LP |
2356 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2357 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2358 | } |
2359 | } | |
f06db334 | 2360 | |
36b693a6 | 2361 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); |
ecdbca40 | 2362 | |
a34ceba6 | 2363 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 2364 | |
2787d83c M |
2365 | if (s->watchdog_override_enable) |
2366 | unit_serialize_item_format(u, f, "watchdog-override-usec", USEC_FMT, s->watchdog_override_usec); | |
2367 | ||
a16e1123 LP |
2368 | return 0; |
2369 | } | |
2370 | ||
e266c068 MS |
2371 | static int service_deserialize_exec_command(Unit *u, const char *key, const char *value) { |
2372 | Service *s = SERVICE(u); | |
2373 | int r; | |
2374 | unsigned idx = 0, i; | |
2375 | bool control, found = false; | |
2376 | ServiceExecCommand id = _SERVICE_EXEC_COMMAND_INVALID; | |
2377 | ExecCommand *command = NULL; | |
6eeec374 | 2378 | _cleanup_free_ char *path = NULL; |
e266c068 MS |
2379 | _cleanup_strv_free_ char **argv = NULL; |
2380 | ||
2381 | enum ExecCommandState { | |
2382 | STATE_EXEC_COMMAND_TYPE, | |
2383 | STATE_EXEC_COMMAND_INDEX, | |
2384 | STATE_EXEC_COMMAND_PATH, | |
2385 | STATE_EXEC_COMMAND_ARGS, | |
2386 | _STATE_EXEC_COMMAND_MAX, | |
2387 | _STATE_EXEC_COMMAND_INVALID = -1, | |
2388 | } state; | |
2389 | ||
2390 | assert(s); | |
2391 | assert(key); | |
2392 | assert(value); | |
2393 | ||
2394 | control = streq(key, "control-command"); | |
2395 | ||
2396 | state = STATE_EXEC_COMMAND_TYPE; | |
2397 | ||
2398 | for (;;) { | |
2399 | _cleanup_free_ char *arg = NULL; | |
2400 | ||
2401 | r = extract_first_word(&value, &arg, NULL, EXTRACT_CUNESCAPE); | |
2402 | if (r == 0) | |
2403 | break; | |
2404 | else if (r < 0) | |
2405 | return r; | |
2406 | ||
2407 | switch (state) { | |
2408 | case STATE_EXEC_COMMAND_TYPE: | |
2409 | id = service_exec_command_from_string(arg); | |
2410 | if (id < 0) | |
2411 | return -EINVAL; | |
2412 | ||
2413 | state = STATE_EXEC_COMMAND_INDEX; | |
2414 | break; | |
2415 | case STATE_EXEC_COMMAND_INDEX: | |
2416 | r = safe_atou(arg, &idx); | |
2417 | if (r < 0) | |
2418 | return -EINVAL; | |
2419 | ||
2420 | state = STATE_EXEC_COMMAND_PATH; | |
2421 | break; | |
2422 | case STATE_EXEC_COMMAND_PATH: | |
2423 | path = arg; | |
2424 | arg = NULL; | |
2425 | state = STATE_EXEC_COMMAND_ARGS; | |
2426 | ||
2427 | if (!path_is_absolute(path)) | |
2428 | return -EINVAL; | |
2429 | break; | |
2430 | case STATE_EXEC_COMMAND_ARGS: | |
2431 | r = strv_extend(&argv, arg); | |
2432 | if (r < 0) | |
2433 | return -ENOMEM; | |
2434 | break; | |
2435 | default: | |
2436 | assert_not_reached("Unknown error at deserialization of exec command"); | |
2437 | break; | |
2438 | } | |
2439 | } | |
2440 | ||
2441 | if (state != STATE_EXEC_COMMAND_ARGS) | |
2442 | return -EINVAL; | |
2443 | ||
2444 | /* Let's check whether exec command on given offset matches data that we just deserialized */ | |
2445 | for (command = s->exec_command[id], i = 0; command; command = command->command_next, i++) { | |
2446 | if (i != idx) | |
2447 | continue; | |
2448 | ||
2449 | found = strv_equal(argv, command->argv) && streq(command->path, path); | |
2450 | break; | |
2451 | } | |
2452 | ||
2453 | if (!found) { | |
2454 | /* Command at the index we serialized is different, let's look for command that exactly | |
2455 | * matches but is on different index. If there is no such command we will not resume execution. */ | |
2456 | for (command = s->exec_command[id]; command; command = command->command_next) | |
2457 | if (strv_equal(command->argv, argv) && streq(command->path, path)) | |
2458 | break; | |
2459 | } | |
2460 | ||
2461 | if (command && control) | |
2462 | s->control_command = command; | |
2463 | else if (command) | |
2464 | s->main_command = command; | |
2465 | else | |
2466 | log_unit_warning(u, "Current command vanished from the unit file, execution of the command list won't be resumed."); | |
2467 | ||
2468 | return 0; | |
2469 | } | |
2470 | ||
a16e1123 LP |
2471 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { |
2472 | Service *s = SERVICE(u); | |
2339fc93 | 2473 | int r; |
a16e1123 LP |
2474 | |
2475 | assert(u); | |
2476 | assert(key); | |
2477 | assert(value); | |
2478 | assert(fds); | |
2479 | ||
2480 | if (streq(key, "state")) { | |
2481 | ServiceState state; | |
2482 | ||
117dcc57 ZJS |
2483 | state = service_state_from_string(value); |
2484 | if (state < 0) | |
f2341e0a | 2485 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2486 | else |
2487 | s->deserialized_state = state; | |
f42806df LP |
2488 | } else if (streq(key, "result")) { |
2489 | ServiceResult f; | |
2490 | ||
2491 | f = service_result_from_string(value); | |
2492 | if (f < 0) | |
f2341e0a | 2493 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2494 | else if (f != SERVICE_SUCCESS) |
2495 | s->result = f; | |
2496 | ||
2497 | } else if (streq(key, "reload-result")) { | |
2498 | ServiceResult f; | |
2499 | ||
2500 | f = service_result_from_string(value); | |
2501 | if (f < 0) | |
f2341e0a | 2502 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2503 | else if (f != SERVICE_SUCCESS) |
2504 | s->reload_result = f; | |
a16e1123 | 2505 | |
a16e1123 | 2506 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2507 | pid_t pid; |
a16e1123 | 2508 | |
e364ad06 | 2509 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2510 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2511 | else |
e55224ca | 2512 | s->control_pid = pid; |
a16e1123 | 2513 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2514 | pid_t pid; |
a16e1123 | 2515 | |
e364ad06 | 2516 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2517 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
7400b9d2 LP |
2518 | else { |
2519 | service_set_main_pid(s, pid); | |
2520 | unit_watch_pid(UNIT(s), pid); | |
2521 | } | |
a16e1123 LP |
2522 | } else if (streq(key, "main-pid-known")) { |
2523 | int b; | |
2524 | ||
117dcc57 ZJS |
2525 | b = parse_boolean(value); |
2526 | if (b < 0) | |
f2341e0a | 2527 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2528 | else |
2529 | s->main_pid_known = b; | |
de1d4f9b WF |
2530 | } else if (streq(key, "bus-name-good")) { |
2531 | int b; | |
2532 | ||
2533 | b = parse_boolean(value); | |
2534 | if (b < 0) | |
2535 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2536 | else | |
2537 | s->bus_name_good = b; | |
d8ccf5fd DM |
2538 | } else if (streq(key, "bus-name-owner")) { |
2539 | r = free_and_strdup(&s->bus_name_owner, value); | |
2540 | if (r < 0) | |
2541 | log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value); | |
3a2776bc LP |
2542 | } else if (streq(key, "status-text")) { |
2543 | char *t; | |
2544 | ||
f2341e0a LP |
2545 | r = cunescape(value, 0, &t); |
2546 | if (r < 0) | |
2547 | log_unit_debug_errno(u, r, "Failed to unescape status text: %s", value); | |
117dcc57 | 2548 | else { |
3a2776bc LP |
2549 | free(s->status_text); |
2550 | s->status_text = t; | |
2551 | } | |
2552 | ||
9dfb64f8 ZJS |
2553 | } else if (streq(key, "accept-socket")) { |
2554 | Unit *socket; | |
2555 | ||
2556 | r = manager_load_unit(u->manager, value, NULL, NULL, &socket); | |
2557 | if (r < 0) | |
2558 | log_unit_debug_errno(u, r, "Failed to load accept-socket unit: %s", value); | |
2559 | else { | |
2560 | unit_ref_set(&s->accept_socket, socket); | |
2561 | SOCKET(socket)->n_connections++; | |
2562 | } | |
2563 | ||
a16e1123 LP |
2564 | } else if (streq(key, "socket-fd")) { |
2565 | int fd; | |
2566 | ||
2567 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2568 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 2569 | else { |
574634bc | 2570 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
2571 | s->socket_fd = fdset_remove(fds, fd); |
2572 | } | |
2339fc93 | 2573 | } else if (streq(key, "fd-store-fd")) { |
8dd4c05b LP |
2574 | const char *fdv; |
2575 | size_t pf; | |
2339fc93 LP |
2576 | int fd; |
2577 | ||
8dd4c05b LP |
2578 | pf = strcspn(value, WHITESPACE); |
2579 | fdv = strndupa(value, pf); | |
2580 | ||
2581 | if (safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2582 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
2339fc93 | 2583 | else { |
8dd4c05b LP |
2584 | _cleanup_free_ char *t = NULL; |
2585 | const char *fdn; | |
2586 | ||
2587 | fdn = value + pf; | |
2588 | fdn += strspn(fdn, WHITESPACE); | |
2589 | (void) cunescape(fdn, 0, &t); | |
2590 | ||
2591 | r = service_add_fd_store(s, fd, t); | |
2339fc93 | 2592 | if (r < 0) |
f2341e0a | 2593 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); |
9021ff17 | 2594 | else |
2339fc93 LP |
2595 | fdset_remove(fds, fd); |
2596 | } | |
2597 | ||
ecdbca40 LP |
2598 | } else if (streq(key, "main-exec-status-pid")) { |
2599 | pid_t pid; | |
2600 | ||
e364ad06 | 2601 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2602 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
2603 | else |
2604 | s->main_exec_status.pid = pid; | |
2605 | } else if (streq(key, "main-exec-status-code")) { | |
2606 | int i; | |
2607 | ||
e364ad06 | 2608 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2609 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
2610 | else |
2611 | s->main_exec_status.code = i; | |
2612 | } else if (streq(key, "main-exec-status-status")) { | |
2613 | int i; | |
2614 | ||
e364ad06 | 2615 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2616 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
2617 | else |
2618 | s->main_exec_status.status = i; | |
799fd0fd LP |
2619 | } else if (streq(key, "main-exec-status-start")) |
2620 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
2621 | else if (streq(key, "main-exec-status-exit")) | |
2622 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
2623 | else if (streq(key, "watchdog-timestamp")) |
2624 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 2625 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2626 | int b; |
2627 | ||
2628 | b = parse_boolean(value); | |
2629 | if (b < 0) | |
f2341e0a | 2630 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
2631 | else |
2632 | s->forbid_restart = b; | |
a34ceba6 LP |
2633 | } else if (streq(key, "stdin-fd")) { |
2634 | int fd; | |
2635 | ||
2636 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2637 | log_unit_debug(u, "Failed to parse stdin-fd value: %s", value); | |
2638 | else { | |
2639 | asynchronous_close(s->stdin_fd); | |
2640 | s->stdin_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2641 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2642 | } |
2643 | } else if (streq(key, "stdout-fd")) { | |
2644 | int fd; | |
2645 | ||
2646 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2647 | log_unit_debug(u, "Failed to parse stdout-fd value: %s", value); | |
2648 | else { | |
2649 | asynchronous_close(s->stdout_fd); | |
2650 | s->stdout_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2651 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2652 | } |
2653 | } else if (streq(key, "stderr-fd")) { | |
2654 | int fd; | |
2655 | ||
2656 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2657 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
2658 | else { | |
2659 | asynchronous_close(s->stderr_fd); | |
2660 | s->stderr_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2661 | s->exec_context.stdio_as_fds = true; |
a34ceba6 | 2662 | } |
2787d83c M |
2663 | } else if (streq(key, "watchdog-override-usec")) { |
2664 | usec_t watchdog_override_usec; | |
2665 | if (timestamp_deserialize(value, &watchdog_override_usec) < 0) | |
2666 | log_unit_debug(u, "Failed to parse watchdog_override_usec value: %s", value); | |
2667 | else { | |
2668 | s->watchdog_override_enable = true; | |
2669 | s->watchdog_override_usec = watchdog_override_usec; | |
2670 | } | |
e266c068 MS |
2671 | } else if (STR_IN_SET(key, "main-command", "control-command")) { |
2672 | r = service_deserialize_exec_command(u, key, value); | |
2673 | if (r < 0) | |
2674 | log_unit_debug_errno(u, r, "Failed to parse serialized command \"%s\": %m", value); | |
7a0019d3 LP |
2675 | |
2676 | } else if (streq(key, "n-restarts")) { | |
2677 | r = safe_atou(value, &s->n_restarts); | |
2678 | if (r < 0) | |
2679 | log_unit_debug_errno(u, r, "Failed to parse serialized restart counter '%s': %m", value); | |
2680 | ||
2681 | } else if (streq(key, "flush-n-restarts")) { | |
2682 | r = parse_boolean(value); | |
2683 | if (r < 0) | |
2684 | log_unit_debug_errno(u, r, "Failed to parse serialized flush restart counter setting '%s': %m", value); | |
2685 | else | |
2686 | s->flush_n_restarts = r; | |
c17ec25e | 2687 | } else |
f2341e0a | 2688 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
2689 | |
2690 | return 0; | |
2691 | } | |
2692 | ||
44a6b1b6 | 2693 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
2694 | const UnitActiveState *table; |
2695 | ||
87f0e418 | 2696 | assert(u); |
5cb5a6ff | 2697 | |
e056b01d LP |
2698 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
2699 | ||
2700 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
2701 | } |
2702 | ||
10a94420 LP |
2703 | static const char *service_sub_state_to_string(Unit *u) { |
2704 | assert(u); | |
2705 | ||
2706 | return service_state_to_string(SERVICE(u)->state); | |
2707 | } | |
2708 | ||
701cc384 LP |
2709 | static bool service_check_gc(Unit *u) { |
2710 | Service *s = SERVICE(u); | |
2711 | ||
2712 | assert(s); | |
2713 | ||
6d55002a LP |
2714 | /* Never clean up services that still have a process around, |
2715 | * even if the service is formally dead. */ | |
2716 | if (cgroup_good(s) > 0 || | |
2717 | main_pid_good(s) > 0 || | |
2718 | control_pid_good(s) > 0) | |
2719 | return true; | |
2720 | ||
6d55002a LP |
2721 | return false; |
2722 | } | |
2723 | ||
3a111838 MS |
2724 | static int service_retry_pid_file(Service *s) { |
2725 | int r; | |
2726 | ||
2727 | assert(s->pid_file); | |
2728 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2729 | ||
2730 | r = service_load_pid_file(s, false); | |
2731 | if (r < 0) | |
2732 | return r; | |
2733 | ||
2734 | service_unwatch_pid_file(s); | |
2735 | ||
f42806df | 2736 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
2737 | return 0; |
2738 | } | |
2739 | ||
2740 | static int service_watch_pid_file(Service *s) { | |
2741 | int r; | |
2742 | ||
f2341e0a | 2743 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 2744 | |
718db961 | 2745 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
2746 | if (r < 0) |
2747 | goto fail; | |
2748 | ||
2749 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 2750 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
2751 | service_retry_pid_file(s); |
2752 | ||
2753 | return 0; | |
2754 | fail: | |
f2341e0a | 2755 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
2756 | service_unwatch_pid_file(s); |
2757 | return r; | |
2758 | } | |
2759 | ||
2760 | static int service_demand_pid_file(Service *s) { | |
2761 | PathSpec *ps; | |
2762 | ||
2763 | assert(s->pid_file); | |
2764 | assert(!s->pid_file_pathspec); | |
2765 | ||
2766 | ps = new0(PathSpec, 1); | |
2767 | if (!ps) | |
2768 | return -ENOMEM; | |
2769 | ||
718db961 | 2770 | ps->unit = UNIT(s); |
3a111838 MS |
2771 | ps->path = strdup(s->pid_file); |
2772 | if (!ps->path) { | |
2773 | free(ps); | |
2774 | return -ENOMEM; | |
2775 | } | |
2776 | ||
2777 | path_kill_slashes(ps->path); | |
2778 | ||
2779 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2780 | * keep their PID file open all the time. */ | |
2781 | ps->type = PATH_MODIFIED; | |
2782 | ps->inotify_fd = -1; | |
2783 | ||
2784 | s->pid_file_pathspec = ps; | |
2785 | ||
2786 | return service_watch_pid_file(s); | |
2787 | } | |
2788 | ||
718db961 | 2789 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2790 | PathSpec *p = userdata; |
2791 | Service *s; | |
2792 | ||
2793 | assert(p); | |
2794 | ||
2795 | s = SERVICE(p->unit); | |
3a111838 MS |
2796 | |
2797 | assert(s); | |
2798 | assert(fd >= 0); | |
2799 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2800 | assert(s->pid_file_pathspec); | |
57020a3a | 2801 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2802 | |
f2341e0a | 2803 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 2804 | |
e14c2802 | 2805 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2806 | goto fail; |
2807 | ||
2808 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2809 | return 0; |
3a111838 MS |
2810 | |
2811 | if (service_watch_pid_file(s) < 0) | |
2812 | goto fail; | |
2813 | ||
718db961 LP |
2814 | return 0; |
2815 | ||
3a111838 MS |
2816 | fail: |
2817 | service_unwatch_pid_file(s); | |
f42806df | 2818 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2819 | return 0; |
3a111838 MS |
2820 | } |
2821 | ||
a911bb9a LP |
2822 | static void service_notify_cgroup_empty_event(Unit *u) { |
2823 | Service *s = SERVICE(u); | |
2824 | ||
2825 | assert(u); | |
2826 | ||
f2341e0a | 2827 | log_unit_debug(u, "cgroup is empty"); |
a911bb9a LP |
2828 | |
2829 | switch (s->state) { | |
2830 | ||
2831 | /* Waiting for SIGCHLD is usually more interesting, | |
2832 | * because it includes return codes/signals. Which is | |
2833 | * why we ignore the cgroup events for most cases, | |
2834 | * except when we don't know pid which to expect the | |
2835 | * SIGCHLD for. */ | |
2836 | ||
2837 | case SERVICE_START: | |
71e529fc | 2838 | if (s->type == SERVICE_NOTIFY) { |
3d474ef7 | 2839 | /* No chance of getting a ready notification anymore */ |
c3fda31d | 2840 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
71e529fc JW |
2841 | break; |
2842 | } | |
2843 | ||
2844 | /* Fall through */ | |
2845 | ||
2846 | case SERVICE_START_POST: | |
2847 | if (s->pid_file_pathspec) { | |
3d474ef7 | 2848 | /* Give up hoping for the daemon to write its PID file */ |
f2341e0a | 2849 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 2850 | |
a911bb9a LP |
2851 | service_unwatch_pid_file(s); |
2852 | if (s->state == SERVICE_START) | |
c3fda31d | 2853 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a | 2854 | else |
c35755fb | 2855 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a LP |
2856 | } |
2857 | break; | |
2858 | ||
2859 | case SERVICE_RUNNING: | |
2860 | /* service_enter_running() will figure out what to do */ | |
2861 | service_enter_running(s, SERVICE_SUCCESS); | |
2862 | break; | |
2863 | ||
db2cb23b | 2864 | case SERVICE_STOP_SIGABRT: |
a911bb9a LP |
2865 | case SERVICE_STOP_SIGTERM: |
2866 | case SERVICE_STOP_SIGKILL: | |
2867 | ||
2868 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2869 | service_enter_stop_post(s, SERVICE_SUCCESS); | |
2870 | ||
2871 | break; | |
2872 | ||
2873 | case SERVICE_STOP_POST: | |
2874 | case SERVICE_FINAL_SIGTERM: | |
2875 | case SERVICE_FINAL_SIGKILL: | |
2876 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2877 | service_enter_dead(s, SERVICE_SUCCESS, true); | |
2878 | ||
2879 | break; | |
2880 | ||
2881 | default: | |
2882 | ; | |
2883 | } | |
2884 | } | |
2885 | ||
87f0e418 LP |
2886 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2887 | Service *s = SERVICE(u); | |
f42806df | 2888 | ServiceResult f; |
5cb5a6ff LP |
2889 | |
2890 | assert(s); | |
034c6ed7 LP |
2891 | assert(pid >= 0); |
2892 | ||
1f0958f6 | 2893 | if (is_clean_exit(code, status, s->type == SERVICE_ONESHOT ? EXIT_CLEAN_COMMAND : EXIT_CLEAN_DAEMON, &s->success_status)) |
f42806df LP |
2894 | f = SERVICE_SUCCESS; |
2895 | else if (code == CLD_EXITED) | |
2896 | f = SERVICE_FAILURE_EXIT_CODE; | |
2897 | else if (code == CLD_KILLED) | |
2898 | f = SERVICE_FAILURE_SIGNAL; | |
2899 | else if (code == CLD_DUMPED) | |
2900 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2901 | else |
cfc4eb4c | 2902 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2903 | |
2904 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2905 | /* Forking services may occasionally move to a new PID. |
2906 | * As long as they update the PID file before exiting the old | |
2907 | * PID, they're fine. */ | |
5375410b | 2908 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2909 | return; |
034c6ed7 | 2910 | |
034c6ed7 | 2911 | s->main_pid = 0; |
6ea832a2 | 2912 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2913 | |
867b3b7d | 2914 | if (s->main_command) { |
fbeefb45 LP |
2915 | /* If this is not a forking service than the |
2916 | * main process got started and hence we copy | |
2917 | * the exit status so that it is recorded both | |
2918 | * as main and as control process exit | |
2919 | * status */ | |
2920 | ||
867b3b7d | 2921 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2922 | |
3ed0cd26 | 2923 | if (s->main_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 2924 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2925 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2926 | ||
2927 | /* If this is a forked process, then we should | |
2928 | * ignore the return value if this was | |
2929 | * configured for the starter process */ | |
2930 | ||
3ed0cd26 | 2931 | if (s->exec_command[SERVICE_EXEC_START]->flags & EXEC_COMMAND_IGNORE_FAILURE) |
fbeefb45 | 2932 | f = SERVICE_SUCCESS; |
034c6ed7 LP |
2933 | } |
2934 | ||
5368222d LP |
2935 | /* When this is a successful exit, let's log about the exit code on DEBUG level. If this is a failure |
2936 | * and the process exited on its own via exit(), then let's make this a NOTICE, under the assumption | |
2937 | * that the service already logged the reason at a higher log level on its own. However, if the service | |
2938 | * died due to a signal, then it most likely didn't say anything about any reason, hence let's raise | |
2939 | * our log level to WARNING then. */ | |
2940 | ||
2941 | log_struct(f == SERVICE_SUCCESS ? LOG_DEBUG : | |
2942 | (code == CLD_EXITED ? LOG_NOTICE : LOG_WARNING), | |
f2341e0a LP |
2943 | LOG_UNIT_MESSAGE(u, "Main process exited, code=%s, status=%i/%s", |
2944 | sigchld_code_to_string(code), status, | |
e2cc6eca LP |
2945 | strna(code == CLD_EXITED |
2946 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2947 | : signal_to_string(status))), | |
f2341e0a LP |
2948 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2949 | "EXIT_STATUS=%i", status, | |
ba360bb0 | 2950 | LOG_UNIT_ID(u), |
f2341e0a | 2951 | NULL); |
f42806df | 2952 | |
a0fef983 | 2953 | if (s->result == SERVICE_SUCCESS) |
f42806df | 2954 | s->result = f; |
034c6ed7 | 2955 | |
867b3b7d LP |
2956 | if (s->main_command && |
2957 | s->main_command->command_next && | |
b58aeb70 | 2958 | s->type == SERVICE_ONESHOT && |
f42806df | 2959 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2960 | |
34e9ba66 LP |
2961 | /* There is another command to * |
2962 | * execute, so let's do that. */ | |
034c6ed7 | 2963 | |
f2341e0a | 2964 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 2965 | service_run_next_main(s); |
034c6ed7 | 2966 | |
34e9ba66 LP |
2967 | } else { |
2968 | ||
2969 | /* The service exited, so the service is officially | |
2970 | * gone. */ | |
867b3b7d | 2971 | s->main_command = NULL; |
34e9ba66 LP |
2972 | |
2973 | switch (s->state) { | |
2974 | ||
2975 | case SERVICE_START_POST: | |
2976 | case SERVICE_RELOAD: | |
2977 | case SERVICE_STOP: | |
2978 | /* Need to wait until the operation is | |
2979 | * done */ | |
c4653a4d | 2980 | break; |
7d55e835 | 2981 | |
34e9ba66 LP |
2982 | case SERVICE_START: |
2983 | if (s->type == SERVICE_ONESHOT) { | |
2984 | /* This was our main goal, so let's go on */ | |
f42806df | 2985 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2986 | service_enter_start_post(s); |
2987 | else | |
c3fda31d | 2988 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
34e9ba66 | 2989 | break; |
3d474ef7 JW |
2990 | } else if (s->type == SERVICE_NOTIFY) { |
2991 | /* Only enter running through a notification, so that the | |
2992 | * SERVICE_START state signifies that no ready notification | |
2993 | * has been received */ | |
2994 | if (f != SERVICE_SUCCESS) | |
c3fda31d | 2995 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3d474ef7 JW |
2996 | else if (!s->remain_after_exit) |
2997 | /* The service has never been active */ | |
c3fda31d | 2998 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3d474ef7 | 2999 | break; |
34e9ba66 | 3000 | } |
034c6ed7 | 3001 | |
bfba3256 LP |
3002 | /* Fall through */ |
3003 | ||
34e9ba66 | 3004 | case SERVICE_RUNNING: |
f42806df | 3005 | service_enter_running(s, f); |
34e9ba66 | 3006 | break; |
034c6ed7 | 3007 | |
db2cb23b | 3008 | case SERVICE_STOP_SIGABRT: |
34e9ba66 LP |
3009 | case SERVICE_STOP_SIGTERM: |
3010 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 3011 | |
34e9ba66 | 3012 | if (!control_pid_good(s)) |
f42806df | 3013 | service_enter_stop_post(s, f); |
5cb5a6ff | 3014 | |
34e9ba66 LP |
3015 | /* If there is still a control process, wait for that first */ |
3016 | break; | |
3017 | ||
bf108e55 LP |
3018 | case SERVICE_STOP_POST: |
3019 | case SERVICE_FINAL_SIGTERM: | |
3020 | case SERVICE_FINAL_SIGKILL: | |
3021 | ||
3022 | if (!control_pid_good(s)) | |
3023 | service_enter_dead(s, f, true); | |
3024 | break; | |
3025 | ||
34e9ba66 LP |
3026 | default: |
3027 | assert_not_reached("Uh, main process died at wrong time."); | |
3028 | } | |
034c6ed7 | 3029 | } |
5cb5a6ff | 3030 | |
034c6ed7 | 3031 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
3032 | s->control_pid = 0; |
3033 | ||
b708e7ce | 3034 | if (s->control_command) { |
8bb2d17d | 3035 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 3036 | |
3ed0cd26 | 3037 | if (s->control_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3038 | f = SERVICE_SUCCESS; |
b708e7ce LP |
3039 | } |
3040 | ||
f2341e0a LP |
3041 | log_unit_full(u, f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0, |
3042 | "Control process exited, code=%s status=%i", | |
3043 | sigchld_code_to_string(code), status); | |
f42806df | 3044 | |
a0fef983 | 3045 | if (s->result == SERVICE_SUCCESS) |
f42806df | 3046 | s->result = f; |
034c6ed7 | 3047 | |
88f3e0c9 LP |
3048 | /* Immediately get rid of the cgroup, so that the |
3049 | * kernel doesn't delay the cgroup empty messages for | |
3050 | * the service cgroup any longer than necessary */ | |
4ad49000 | 3051 | service_kill_control_processes(s); |
88f3e0c9 | 3052 | |
34e9ba66 LP |
3053 | if (s->control_command && |
3054 | s->control_command->command_next && | |
f42806df | 3055 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3056 | |
3057 | /* There is another command to * | |
3058 | * execute, so let's do that. */ | |
3059 | ||
f2341e0a | 3060 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 3061 | service_run_next_control(s); |
034c6ed7 | 3062 | |
80876c20 | 3063 | } else { |
034c6ed7 LP |
3064 | /* No further commands for this step, so let's |
3065 | * figure out what to do next */ | |
3066 | ||
a16e1123 LP |
3067 | s->control_command = NULL; |
3068 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3069 | ||
f2341e0a | 3070 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 3071 | |
034c6ed7 LP |
3072 | switch (s->state) { |
3073 | ||
3074 | case SERVICE_START_PRE: | |
f42806df | 3075 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3076 | service_enter_start(s); |
3077 | else | |
c3fda31d | 3078 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3079 | break; |
3080 | ||
3081 | case SERVICE_START: | |
bfba3256 LP |
3082 | if (s->type != SERVICE_FORKING) |
3083 | /* Maybe spurious event due to a reload that changed the type? */ | |
3084 | break; | |
034c6ed7 | 3085 | |
f42806df | 3086 | if (f != SERVICE_SUCCESS) { |
c3fda31d | 3087 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3a111838 MS |
3088 | break; |
3089 | } | |
034c6ed7 | 3090 | |
3a111838 | 3091 | if (s->pid_file) { |
f42806df LP |
3092 | bool has_start_post; |
3093 | int r; | |
3094 | ||
3a111838 MS |
3095 | /* Let's try to load the pid file here if we can. |
3096 | * The PID file might actually be created by a START_POST | |
3097 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
3098 | |
3099 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
3100 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
3101 | if (!has_start_post && r < 0) { |
3102 | r = service_demand_pid_file(s); | |
3103 | if (r < 0 || !cgroup_good(s)) | |
c3fda31d | 3104 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3a111838 MS |
3105 | break; |
3106 | } | |
034c6ed7 | 3107 | } else |
783e05d6 | 3108 | service_search_main_pid(s); |
034c6ed7 | 3109 | |
3a111838 | 3110 | service_enter_start_post(s); |
034c6ed7 LP |
3111 | break; |
3112 | ||
3113 | case SERVICE_START_POST: | |
f42806df | 3114 | if (f != SERVICE_SUCCESS) { |
ce359e98 | 3115 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
2096e009 | 3116 | break; |
034c6ed7 LP |
3117 | } |
3118 | ||
2096e009 | 3119 | if (s->pid_file) { |
f42806df LP |
3120 | int r; |
3121 | ||
3122 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3123 | if (r < 0) { |
3124 | r = service_demand_pid_file(s); | |
3125 | if (r < 0 || !cgroup_good(s)) | |
c35755fb | 3126 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
2096e009 MS |
3127 | break; |
3128 | } | |
3129 | } else | |
783e05d6 | 3130 | service_search_main_pid(s); |
2096e009 | 3131 | |
f42806df | 3132 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3133 | break; |
034c6ed7 LP |
3134 | |
3135 | case SERVICE_RELOAD: | |
7236ce6e ZJS |
3136 | if (f == SERVICE_SUCCESS) |
3137 | if (service_load_pid_file(s, true) < 0) | |
3138 | service_search_main_pid(s); | |
3185a36b | 3139 | |
f42806df LP |
3140 | s->reload_result = f; |
3141 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3142 | break; |
3143 | ||
3144 | case SERVICE_STOP: | |
f42806df | 3145 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3146 | break; |
3147 | ||
db2cb23b | 3148 | case SERVICE_STOP_SIGABRT: |
034c6ed7 LP |
3149 | case SERVICE_STOP_SIGTERM: |
3150 | case SERVICE_STOP_SIGKILL: | |
3151 | if (main_pid_good(s) <= 0) | |
f42806df | 3152 | service_enter_stop_post(s, f); |
034c6ed7 LP |
3153 | |
3154 | /* If there is still a service | |
3155 | * process around, wait until | |
3156 | * that one quit, too */ | |
3157 | break; | |
3158 | ||
3159 | case SERVICE_STOP_POST: | |
3160 | case SERVICE_FINAL_SIGTERM: | |
3161 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
3162 | if (main_pid_good(s) <= 0) |
3163 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
3164 | break; |
3165 | ||
3166 | default: | |
3167 | assert_not_reached("Uh, control process died at wrong time."); | |
3168 | } | |
3169 | } | |
8c47c732 | 3170 | } |
c4e2ceae LP |
3171 | |
3172 | /* Notify clients about changed exit status */ | |
3173 | unit_add_to_dbus_queue(u); | |
a911bb9a LP |
3174 | |
3175 | /* We got one SIGCHLD for the service, let's watch all | |
3176 | * processes that are now running of the service, and watch | |
3177 | * that. Among the PIDs we then watch will be children | |
3178 | * reassigned to us, which hopefully allows us to identify | |
3179 | * when all children are gone */ | |
3180 | unit_tidy_watch_pids(u, s->main_pid, s->control_pid); | |
3181 | unit_watch_all_pids(u); | |
3182 | ||
bbc85a16 EV |
3183 | /* If the PID set is empty now, then let's finish this off |
3184 | (On unified we use proper notifications) */ | |
c22800e4 | 3185 | if (cg_unified_controller(SYSTEMD_CGROUP_CONTROLLER) == 0 && set_isempty(u->pids)) |
a911bb9a | 3186 | service_notify_cgroup_empty_event(u); |
034c6ed7 LP |
3187 | } |
3188 | ||
718db961 LP |
3189 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
3190 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
3191 | |
3192 | assert(s); | |
718db961 | 3193 | assert(source == s->timer_event_source); |
034c6ed7 LP |
3194 | |
3195 | switch (s->state) { | |
3196 | ||
3197 | case SERVICE_START_PRE: | |
3198 | case SERVICE_START: | |
f2341e0a | 3199 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", s->state == SERVICE_START ? "Start" : "Start-pre"); |
c3fda31d | 3200 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
3201 | break; |
3202 | ||
034c6ed7 | 3203 | case SERVICE_START_POST: |
f2341e0a | 3204 | log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping."); |
ce359e98 | 3205 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3206 | break; |
3207 | ||
36c16a7c LP |
3208 | case SERVICE_RUNNING: |
3209 | log_unit_warning(UNIT(s), "Service reached runtime time limit. Stopping."); | |
3210 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); | |
3211 | break; | |
3212 | ||
e2f3b44c | 3213 | case SERVICE_RELOAD: |
089b64d5 | 3214 | log_unit_warning(UNIT(s), "Reload operation timed out. Killing reload process."); |
478b6192 | 3215 | service_kill_control_processes(s); |
f42806df LP |
3216 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3217 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3218 | break; |
3219 | ||
034c6ed7 | 3220 | case SERVICE_STOP: |
f2341e0a | 3221 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
f42806df | 3222 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3223 | break; |
3224 | ||
db2cb23b | 3225 | case SERVICE_STOP_SIGABRT: |
f2341e0a | 3226 | log_unit_warning(UNIT(s), "State 'stop-sigabrt' timed out. Terminating."); |
2ab2ab7b | 3227 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
db2cb23b UTL |
3228 | break; |
3229 | ||
034c6ed7 | 3230 | case SERVICE_STOP_SIGTERM: |
4819ff03 | 3231 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3232 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 3233 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3234 | } else { |
f2341e0a | 3235 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 3236 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3237 | } |
3238 | ||
034c6ed7 LP |
3239 | break; |
3240 | ||
3241 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3242 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3243 | * Must be something we cannot kill, so let's just be |
3244 | * weirded out and continue */ | |
3245 | ||
f2341e0a | 3246 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 3247 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3248 | break; |
3249 | ||
3250 | case SERVICE_STOP_POST: | |
f2341e0a | 3251 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); |
f42806df | 3252 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3253 | break; |
3254 | ||
3255 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 3256 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3257 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing."); |
f42806df | 3258 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3259 | } else { |
f2341e0a | 3260 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); |
f42806df | 3261 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3262 | } |
3263 | ||
034c6ed7 LP |
3264 | break; |
3265 | ||
3266 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 3267 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 3268 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3269 | break; |
3270 | ||
3271 | case SERVICE_AUTO_RESTART: | |
f2341e0a | 3272 | log_unit_info(UNIT(s), |
ef417cfd | 3273 | s->restart_usec > 0 ? |
f2341e0a LP |
3274 | "Service hold-off time over, scheduling restart." : |
3275 | "Service has no hold-off time, scheduling restart."); | |
034c6ed7 LP |
3276 | service_enter_restart(s); |
3277 | break; | |
3278 | ||
3279 | default: | |
3280 | assert_not_reached("Timeout at wrong time."); | |
3281 | } | |
718db961 LP |
3282 | |
3283 | return 0; | |
3284 | } | |
3285 | ||
3286 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
3287 | Service *s = SERVICE(userdata); | |
a7850c7d | 3288 | char t[FORMAT_TIMESPAN_MAX]; |
2787d83c | 3289 | usec_t watchdog_usec; |
718db961 LP |
3290 | |
3291 | assert(s); | |
3292 | assert(source == s->watchdog_event_source); | |
3293 | ||
2787d83c M |
3294 | watchdog_usec = service_get_watchdog_usec(s); |
3295 | ||
f2341e0a | 3296 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", |
2787d83c | 3297 | format_timespan(t, sizeof(t), watchdog_usec, 1)); |
8bb2d17d | 3298 | |
db2cb23b | 3299 | service_enter_signal(s, SERVICE_STOP_SIGABRT, SERVICE_FAILURE_WATCHDOG); |
842129f5 | 3300 | |
718db961 | 3301 | return 0; |
5cb5a6ff LP |
3302 | } |
3303 | ||
a354329f | 3304 | static void service_notify_message(Unit *u, pid_t pid, char **tags, FDSet *fds) { |
8c47c732 | 3305 | Service *s = SERVICE(u); |
308d72dc | 3306 | _cleanup_free_ char *cc = NULL; |
30b5275a | 3307 | bool notify_dbus = false; |
308d72dc | 3308 | const char *e; |
8c47c732 LP |
3309 | |
3310 | assert(u); | |
3311 | ||
308d72dc | 3312 | cc = strv_join(tags, ", "); |
da13d4d2 | 3313 | |
c952c6ec | 3314 | if (s->notify_access == NOTIFY_NONE) { |
f2341e0a | 3315 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
c952c6ec | 3316 | return; |
34959677 | 3317 | } else if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { |
336c6e46 | 3318 | if (s->main_pid != 0) |
f2341e0a | 3319 | 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 | 3320 | else |
6375bd20 JW |
3321 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for main PID which is currently not known", pid); |
3322 | return; | |
3323 | } else if (s->notify_access == NOTIFY_EXEC && pid != s->main_pid && pid != s->control_pid) { | |
3324 | if (s->main_pid != 0 && s->control_pid != 0) | |
3325 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT" and control PID "PID_FMT, | |
3326 | pid, s->main_pid, s->control_pid); | |
3327 | else if (s->main_pid != 0) | |
3328 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT, pid, s->main_pid); | |
3329 | else if (s->control_pid != 0) | |
3330 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for control PID "PID_FMT, pid, s->control_pid); | |
3331 | else | |
3332 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for main PID and control PID which are currently not known", pid); | |
c952c6ec | 3333 | return; |
34959677 TG |
3334 | } else |
3335 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", pid, isempty(cc) ? "n/a" : cc); | |
c952c6ec | 3336 | |
8c47c732 | 3337 | /* Interpret MAINPID= */ |
28849dba | 3338 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 3339 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
28849dba | 3340 | if (parse_pid(e, &pid) < 0) |
f2341e0a | 3341 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message: %s", e); |
3c9512c7 JW |
3342 | else if (pid == s->control_pid) |
3343 | log_unit_warning(u, "A control process cannot also be the main process"); | |
df0ff127 | 3344 | else if (pid == getpid_cached() || pid == 1) |
6939ce64 | 3345 | log_unit_warning(u, "Service manager can't be main process, ignoring sd_notify() MAINPID= field"); |
8c47c732 | 3346 | else { |
5925dd3c | 3347 | service_set_main_pid(s, pid); |
7400b9d2 | 3348 | unit_watch_pid(UNIT(s), pid); |
30b5275a | 3349 | notify_dbus = true; |
8c47c732 LP |
3350 | } |
3351 | } | |
3352 | ||
308d72dc LP |
3353 | /* Interpret RELOADING= */ |
3354 | if (strv_find(tags, "RELOADING=1")) { | |
3355 | ||
308d72dc LP |
3356 | s->notify_state = NOTIFY_RELOADING; |
3357 | ||
3358 | if (s->state == SERVICE_RUNNING) | |
3359 | service_enter_reload_by_notify(s); | |
3360 | ||
3361 | notify_dbus = true; | |
3362 | } | |
3363 | ||
8c47c732 | 3364 | /* Interpret READY= */ |
308d72dc LP |
3365 | if (strv_find(tags, "READY=1")) { |
3366 | ||
308d72dc LP |
3367 | s->notify_state = NOTIFY_READY; |
3368 | ||
3369 | /* Type=notify services inform us about completed | |
3370 | * initialization with READY=1 */ | |
3371 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
3372 | service_enter_start_post(s); | |
3373 | ||
3374 | /* Sending READY=1 while we are reloading informs us | |
3375 | * that the reloading is complete */ | |
3376 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
3377 | service_enter_running(s, SERVICE_SUCCESS); | |
3378 | ||
3379 | notify_dbus = true; | |
3380 | } | |
3381 | ||
3382 | /* Interpret STOPPING= */ | |
3383 | if (strv_find(tags, "STOPPING=1")) { | |
3384 | ||
308d72dc LP |
3385 | s->notify_state = NOTIFY_STOPPING; |
3386 | ||
3387 | if (s->state == SERVICE_RUNNING) | |
3388 | service_enter_stop_by_notify(s); | |
3389 | ||
30b5275a | 3390 | notify_dbus = true; |
8c47c732 LP |
3391 | } |
3392 | ||
3393 | /* Interpret STATUS= */ | |
28849dba | 3394 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 3395 | if (e) { |
28849dba | 3396 | _cleanup_free_ char *t = NULL; |
8c47c732 | 3397 | |
28849dba LP |
3398 | if (!isempty(e)) { |
3399 | if (!utf8_is_valid(e)) | |
f2341e0a | 3400 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean."); |
28849dba | 3401 | else { |
28849dba LP |
3402 | t = strdup(e); |
3403 | if (!t) | |
3404 | log_oom(); | |
3a2776bc | 3405 | } |
28849dba | 3406 | } |
8c47c732 | 3407 | |
30b5275a | 3408 | if (!streq_ptr(s->status_text, t)) { |
28849dba | 3409 | |
3b319885 | 3410 | free_and_replace(s->status_text, t); |
28849dba | 3411 | |
30b5275a | 3412 | notify_dbus = true; |
28849dba | 3413 | } |
8c47c732 | 3414 | } |
842129f5 | 3415 | |
4774e357 | 3416 | /* Interpret ERRNO= */ |
28849dba | 3417 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
3418 | if (e) { |
3419 | int status_errno; | |
3420 | ||
28849dba | 3421 | if (safe_atoi(e, &status_errno) < 0 || status_errno < 0) |
f2341e0a | 3422 | log_unit_warning(u, "Failed to parse ERRNO= field in notification message: %s", e); |
4774e357 | 3423 | else { |
4774e357 MAA |
3424 | if (s->status_errno != status_errno) { |
3425 | s->status_errno = status_errno; | |
3426 | notify_dbus = true; | |
3427 | } | |
3428 | } | |
3429 | } | |
3430 | ||
6f285378 | 3431 | /* Interpret WATCHDOG= */ |
1f6b4113 | 3432 | if (strv_find(tags, "WATCHDOG=1")) |
842129f5 | 3433 | service_reset_watchdog(s); |
c4e2ceae | 3434 | |
8dd4c05b LP |
3435 | if (strv_find(tags, "FDSTORE=1")) { |
3436 | const char *name; | |
3437 | ||
3438 | name = strv_find_startswith(tags, "FDNAME="); | |
3439 | if (name && !fdname_is_valid(name)) { | |
3440 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
3441 | name = NULL; | |
3442 | } | |
3443 | ||
3444 | service_add_fd_store_set(s, fds, name); | |
3445 | } | |
a354329f | 3446 | |
2787d83c M |
3447 | e = strv_find_startswith(tags, "WATCHDOG_USEC="); |
3448 | if (e) { | |
3449 | usec_t watchdog_override_usec; | |
3450 | if (safe_atou64(e, &watchdog_override_usec) < 0) | |
3451 | log_unit_warning(u, "Failed to parse WATCHDOG_USEC=%s", e); | |
3452 | else | |
3453 | service_reset_watchdog_timeout(s, watchdog_override_usec); | |
3454 | } | |
3455 | ||
c4e2ceae | 3456 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
3457 | if (notify_dbus) |
3458 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
3459 | } |
3460 | ||
7a7821c8 | 3461 | static int service_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 3462 | Service *s = SERVICE(u); |
7a7821c8 | 3463 | uint64_t t; |
68db7a3b ZJS |
3464 | int r; |
3465 | ||
3466 | if (!s->timer_event_source) | |
3467 | return 0; | |
3468 | ||
7a7821c8 | 3469 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
3470 | if (r < 0) |
3471 | return r; | |
7a7821c8 LP |
3472 | if (t == USEC_INFINITY) |
3473 | return 0; | |
68db7a3b | 3474 | |
7a7821c8 | 3475 | *timeout = t; |
68db7a3b ZJS |
3476 | return 1; |
3477 | } | |
3478 | ||
05e343b7 LP |
3479 | static void service_bus_name_owner_change( |
3480 | Unit *u, | |
3481 | const char *name, | |
3482 | const char *old_owner, | |
3483 | const char *new_owner) { | |
3484 | ||
3485 | Service *s = SERVICE(u); | |
718db961 | 3486 | int r; |
05e343b7 LP |
3487 | |
3488 | assert(s); | |
3489 | assert(name); | |
3490 | ||
3491 | assert(streq(s->bus_name, name)); | |
3492 | assert(old_owner || new_owner); | |
3493 | ||
3494 | if (old_owner && new_owner) | |
f2341e0a | 3495 | log_unit_debug(u, "D-Bus name %s changed owner from %s to %s", name, old_owner, new_owner); |
05e343b7 | 3496 | else if (old_owner) |
f2341e0a | 3497 | log_unit_debug(u, "D-Bus name %s no longer registered by %s", name, old_owner); |
05e343b7 | 3498 | else |
f2341e0a | 3499 | log_unit_debug(u, "D-Bus name %s now registered by %s", name, new_owner); |
05e343b7 LP |
3500 | |
3501 | s->bus_name_good = !!new_owner; | |
3502 | ||
d8ccf5fd DM |
3503 | /* Track the current owner, so we can reconstruct changes after a daemon reload */ |
3504 | r = free_and_strdup(&s->bus_name_owner, new_owner); | |
3505 | if (r < 0) { | |
3506 | log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner); | |
3507 | return; | |
3508 | } | |
3509 | ||
05e343b7 LP |
3510 | if (s->type == SERVICE_DBUS) { |
3511 | ||
3512 | /* service_enter_running() will figure out what to | |
3513 | * do */ | |
3514 | if (s->state == SERVICE_RUNNING) | |
f42806df | 3515 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
3516 | else if (s->state == SERVICE_START && new_owner) |
3517 | service_enter_start_post(s); | |
3518 | ||
3519 | } else if (new_owner && | |
3520 | s->main_pid <= 0 && | |
3521 | (s->state == SERVICE_START || | |
3522 | s->state == SERVICE_START_POST || | |
3523 | s->state == SERVICE_RUNNING || | |
3524 | s->state == SERVICE_RELOAD)) { | |
3525 | ||
4afd3348 | 3526 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
718db961 | 3527 | pid_t pid; |
05e343b7 | 3528 | |
718db961 | 3529 | /* Try to acquire PID from bus service */ |
05e343b7 | 3530 | |
056f95d0 | 3531 | r = sd_bus_get_name_creds(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
3532 | if (r >= 0) |
3533 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 | 3534 | if (r >= 0) { |
7c102d60 | 3535 | log_unit_debug(u, "D-Bus name %s is now owned by process " PID_FMT, name, pid); |
05e343b7 | 3536 | |
718db961 LP |
3537 | service_set_main_pid(s, pid); |
3538 | unit_watch_pid(UNIT(s), pid); | |
3539 | } | |
7400b9d2 | 3540 | } |
05e343b7 LP |
3541 | } |
3542 | ||
16115b0a | 3543 | int service_set_socket_fd(Service *s, int fd, Socket *sock, bool selinux_context_net) { |
79a98c60 LP |
3544 | _cleanup_free_ char *peer = NULL; |
3545 | int r; | |
57020a3a | 3546 | |
4f2d528d LP |
3547 | assert(s); |
3548 | assert(fd >= 0); | |
3549 | ||
7f2fbbff LP |
3550 | /* This is called by the socket code when instantiating a new service for a stream socket and the socket needs |
3551 | * to be configured. We take ownership of the passed fd on success. */ | |
4f2d528d | 3552 | |
1124fe6f | 3553 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
3554 | return -EINVAL; |
3555 | ||
3556 | if (s->socket_fd >= 0) | |
3557 | return -EBUSY; | |
3558 | ||
3559 | if (s->state != SERVICE_DEAD) | |
3560 | return -EAGAIN; | |
3561 | ||
366b7db4 | 3562 | if (getpeername_pretty(fd, true, &peer) >= 0) { |
79a98c60 LP |
3563 | |
3564 | if (UNIT(s)->description) { | |
3565 | _cleanup_free_ char *a; | |
3566 | ||
605405c6 | 3567 | a = strjoin(UNIT(s)->description, " (", peer, ")"); |
79a98c60 LP |
3568 | if (!a) |
3569 | return -ENOMEM; | |
3570 | ||
3571 | r = unit_set_description(UNIT(s), a); | |
3572 | } else | |
3573 | r = unit_set_description(UNIT(s), peer); | |
3574 | ||
3575 | if (r < 0) | |
3576 | return r; | |
3577 | } | |
3578 | ||
7f2fbbff LP |
3579 | r = unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); |
3580 | if (r < 0) | |
3581 | return r; | |
3582 | ||
4f2d528d | 3583 | s->socket_fd = fd; |
16115b0a | 3584 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 3585 | |
57020a3a | 3586 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
7f2fbbff | 3587 | return 0; |
4f2d528d LP |
3588 | } |
3589 | ||
fdf20a31 | 3590 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
3591 | Service *s = SERVICE(u); |
3592 | ||
3593 | assert(s); | |
3594 | ||
fdf20a31 | 3595 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
3596 | service_set_state(s, SERVICE_DEAD); |
3597 | ||
f42806df LP |
3598 | s->result = SERVICE_SUCCESS; |
3599 | s->reload_result = SERVICE_SUCCESS; | |
7a0019d3 LP |
3600 | s->n_restarts = 0; |
3601 | s->flush_n_restarts = false; | |
5632e374 LP |
3602 | } |
3603 | ||
718db961 | 3604 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 3605 | Service *s = SERVICE(u); |
41efeaec | 3606 | |
814cc562 | 3607 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
3608 | } |
3609 | ||
291d565a LP |
3610 | static int service_main_pid(Unit *u) { |
3611 | Service *s = SERVICE(u); | |
3612 | ||
3613 | assert(s); | |
3614 | ||
3615 | return s->main_pid; | |
3616 | } | |
3617 | ||
3618 | static int service_control_pid(Unit *u) { | |
3619 | Service *s = SERVICE(u); | |
3620 | ||
3621 | assert(s); | |
3622 | ||
3623 | return s->control_pid; | |
3624 | } | |
3625 | ||
94f04347 | 3626 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
525ee6f4 LP |
3627 | [SERVICE_RESTART_NO] = "no", |
3628 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 3629 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 3630 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 3631 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 3632 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 3633 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
3634 | }; |
3635 | ||
3636 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
3637 | ||
3638 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 3639 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 3640 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 3641 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 3642 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
3643 | [SERVICE_NOTIFY] = "notify", |
3644 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
3645 | }; |
3646 | ||
3647 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
3648 | ||
e537352b | 3649 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
3650 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
3651 | [SERVICE_EXEC_START] = "ExecStart", | |
3652 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
3653 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
3654 | [SERVICE_EXEC_STOP] = "ExecStop", | |
3655 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
3656 | }; | |
3657 | ||
3658 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
3659 | ||
308d72dc LP |
3660 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
3661 | [NOTIFY_UNKNOWN] = "unknown", | |
3662 | [NOTIFY_READY] = "ready", | |
3663 | [NOTIFY_RELOADING] = "reloading", | |
3664 | [NOTIFY_STOPPING] = "stopping", | |
3665 | }; | |
3666 | ||
3667 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
3668 | ||
f42806df LP |
3669 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
3670 | [SERVICE_SUCCESS] = "success", | |
3671 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
c35755fb | 3672 | [SERVICE_FAILURE_PROTOCOL] = "protocol", |
f42806df LP |
3673 | [SERVICE_FAILURE_TIMEOUT] = "timeout", |
3674 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
3675 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 3676 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a | 3677 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
07299350 | 3678 | [SERVICE_FAILURE_START_LIMIT_HIT] = "start-limit-hit", |
f42806df LP |
3679 | }; |
3680 | ||
3681 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
3682 | ||
87f0e418 | 3683 | const UnitVTable service_vtable = { |
7d17cfbc | 3684 | .object_size = sizeof(Service), |
718db961 LP |
3685 | .exec_context_offset = offsetof(Service, exec_context), |
3686 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
3687 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 3688 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
29206d46 | 3689 | .dynamic_creds_offset = offsetof(Service, dynamic_creds), |
3ef63c31 | 3690 | |
f975e971 LP |
3691 | .sections = |
3692 | "Unit\0" | |
3693 | "Service\0" | |
3694 | "Install\0", | |
4ad49000 | 3695 | .private_section = "Service", |
71645aca | 3696 | |
034c6ed7 LP |
3697 | .init = service_init, |
3698 | .done = service_done, | |
a16e1123 | 3699 | .load = service_load, |
a354329f | 3700 | .release_resources = service_release_resources, |
a16e1123 LP |
3701 | |
3702 | .coldplug = service_coldplug, | |
034c6ed7 | 3703 | |
5cb5a6ff LP |
3704 | .dump = service_dump, |
3705 | ||
3706 | .start = service_start, | |
3707 | .stop = service_stop, | |
3708 | .reload = service_reload, | |
3709 | ||
034c6ed7 LP |
3710 | .can_reload = service_can_reload, |
3711 | ||
8a0867d6 LP |
3712 | .kill = service_kill, |
3713 | ||
a16e1123 LP |
3714 | .serialize = service_serialize, |
3715 | .deserialize_item = service_deserialize_item, | |
3716 | ||
5cb5a6ff | 3717 | .active_state = service_active_state, |
10a94420 | 3718 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 3719 | |
701cc384 | 3720 | .check_gc = service_check_gc, |
701cc384 | 3721 | |
034c6ed7 | 3722 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 3723 | |
fdf20a31 | 3724 | .reset_failed = service_reset_failed, |
5632e374 | 3725 | |
4ad49000 | 3726 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 3727 | .notify_message = service_notify_message, |
8e274523 | 3728 | |
291d565a LP |
3729 | .main_pid = service_main_pid, |
3730 | .control_pid = service_control_pid, | |
3731 | ||
05e343b7 | 3732 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 3733 | |
718db961 | 3734 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
3735 | .bus_set_property = bus_service_set_property, |
3736 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 3737 | |
68db7a3b | 3738 | .get_timeout = service_get_timeout, |
718db961 LP |
3739 | .can_transient = true, |
3740 | ||
c6918296 MS |
3741 | .status_message_formats = { |
3742 | .starting_stopping = { | |
3743 | [0] = "Starting %s...", | |
3744 | [1] = "Stopping %s...", | |
3745 | }, | |
3746 | .finished_start_job = { | |
3747 | [JOB_DONE] = "Started %s.", | |
3748 | [JOB_FAILED] = "Failed to start %s.", | |
c6918296 MS |
3749 | }, |
3750 | .finished_stop_job = { | |
3751 | [JOB_DONE] = "Stopped %s.", | |
3752 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 MS |
3753 | }, |
3754 | }, | |
5cb5a6ff | 3755 | }; |