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Commit | Line | Data |
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a7334b09 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2010 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
7 | under the terms of the GNU Lesser General Public License as published by |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
9 | (at your option) any later version. |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 14 | Lesser General Public License for more details. |
a7334b09 | 15 | |
5430f7f2 | 16 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
18 | ***/ | |
19 | ||
5cb5a6ff | 20 | #include <errno.h> |
034c6ed7 | 21 | #include <signal.h> |
2c4104f0 | 22 | #include <unistd.h> |
5cb5a6ff | 23 | |
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 LP |
1500 | int r; |
1501 | assert(s); | |
1502 | ||
a0fef983 | 1503 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1504 | s->result = f; |
034c6ed7 | 1505 | |
0c7f15b3 MS |
1506 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1507 | ||
2928b0a8 | 1508 | if (s->result != SERVICE_SUCCESS) { |
f2341e0a | 1509 | log_unit_warning(UNIT(s), "Failed with result '%s'.", service_result_to_string(s->result)); |
87a47f99 | 1510 | emergency_action(UNIT(s)->manager, s->emergency_action, UNIT(s)->reboot_arg, "service failed"); |
2928b0a8 | 1511 | } |
93ae25e6 | 1512 | |
a509f0e6 | 1513 | if (allow_restart && service_shall_restart(s)) { |
034c6ed7 | 1514 | |
36c16a7c | 1515 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
f42806df | 1516 | if (r < 0) |
034c6ed7 LP |
1517 | goto fail; |
1518 | ||
1519 | service_set_state(s, SERVICE_AUTO_RESTART); | |
7a0019d3 LP |
1520 | } else |
1521 | /* If we shan't restart, then flush out the restart counter. But don't do that immediately, so that the | |
1522 | * user can still introspect the counter. Do so on the next start. */ | |
1523 | s->flush_n_restarts = true; | |
034c6ed7 | 1524 | |
f2341e0a | 1525 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1526 | s->forbid_restart = false; |
1527 | ||
e66cf1a3 | 1528 | /* We want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1529 | exec_runtime_destroy(s->exec_runtime); |
1530 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1531 | |
53f47dfc YW |
1532 | if (s->exec_context.runtime_directory_preserve_mode == EXEC_PRESERVE_NO || |
1533 | (s->exec_context.runtime_directory_preserve_mode == EXEC_PRESERVE_RESTART && !service_will_restart(s))) | |
1534 | /* Also, remove the runtime directory */ | |
3536f49e | 1535 | exec_context_destroy_runtime_directory(&s->exec_context, UNIT(s)->manager->prefix[EXEC_DIRECTORY_RUNTIME]); |
e66cf1a3 | 1536 | |
00d9ef85 LP |
1537 | /* Get rid of the IPC bits of the user */ |
1538 | unit_unref_uid_gid(UNIT(s), true); | |
1539 | ||
29206d46 LP |
1540 | /* Release the user, and destroy it if we are the only remaining owner */ |
1541 | dynamic_creds_destroy(&s->dynamic_creds); | |
1542 | ||
9285c9ff LN |
1543 | /* Try to delete the pid file. At this point it will be |
1544 | * out-of-date, and some software might be confused by it, so | |
1545 | * let's remove it. */ | |
1546 | if (s->pid_file) | |
fabab190 | 1547 | (void) unlink(s->pid_file); |
9285c9ff | 1548 | |
034c6ed7 LP |
1549 | return; |
1550 | ||
1551 | fail: | |
f2341e0a | 1552 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1553 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1554 | } |
1555 | ||
f42806df | 1556 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1557 | int r; |
1558 | assert(s); | |
1559 | ||
a0fef983 | 1560 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1561 | s->result = f; |
034c6ed7 | 1562 | |
5e94833f | 1563 | service_unwatch_control_pid(s); |
a911bb9a | 1564 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1565 | |
117dcc57 ZJS |
1566 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1567 | if (s->control_command) { | |
867b3b7d LP |
1568 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1569 | ||
ecedd90f LP |
1570 | r = service_spawn(s, |
1571 | s->control_command, | |
21b2ce39 | 1572 | s->timeout_stop_usec, |
1703fa41 | 1573 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_IS_CONTROL|EXEC_SETENV_RESULT, |
ecedd90f LP |
1574 | &s->control_pid); |
1575 | if (r < 0) | |
034c6ed7 LP |
1576 | goto fail; |
1577 | ||
80876c20 LP |
1578 | service_set_state(s, SERVICE_STOP_POST); |
1579 | } else | |
ac84d1fb | 1580 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1581 | |
1582 | return; | |
1583 | ||
1584 | fail: | |
f2341e0a | 1585 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1586 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1587 | } |
1588 | ||
4940c0b0 LP |
1589 | static int state_to_kill_operation(ServiceState state) { |
1590 | switch (state) { | |
1591 | ||
1592 | case SERVICE_STOP_SIGABRT: | |
1593 | return KILL_ABORT; | |
1594 | ||
1595 | case SERVICE_STOP_SIGTERM: | |
1596 | case SERVICE_FINAL_SIGTERM: | |
1597 | return KILL_TERMINATE; | |
1598 | ||
1599 | case SERVICE_STOP_SIGKILL: | |
1600 | case SERVICE_FINAL_SIGKILL: | |
1601 | return KILL_KILL; | |
1602 | ||
1603 | default: | |
1604 | return _KILL_OPERATION_INVALID; | |
1605 | } | |
1606 | } | |
1607 | ||
f42806df | 1608 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1609 | int r; |
034c6ed7 LP |
1610 | |
1611 | assert(s); | |
1612 | ||
a0fef983 | 1613 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1614 | s->result = f; |
034c6ed7 | 1615 | |
a911bb9a LP |
1616 | unit_watch_all_pids(UNIT(s)); |
1617 | ||
cd2086fe LP |
1618 | r = unit_kill_context( |
1619 | UNIT(s), | |
1620 | &s->kill_context, | |
4940c0b0 | 1621 | state_to_kill_operation(state), |
cd2086fe LP |
1622 | s->main_pid, |
1623 | s->control_pid, | |
1624 | s->main_pid_alien); | |
ac84d1fb | 1625 | |
cd2086fe LP |
1626 | if (r < 0) |
1627 | goto fail; | |
034c6ed7 | 1628 | |
cd2086fe | 1629 | if (r > 0) { |
36c16a7c LP |
1630 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
1631 | if (r < 0) | |
1632 | goto fail; | |
d6ea93e3 | 1633 | |
80876c20 | 1634 | service_set_state(s, state); |
1db0db4b | 1635 | } else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1636 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
1db0db4b | 1637 | else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1638 | service_enter_stop_post(s, SERVICE_SUCCESS); |
1db0db4b | 1639 | else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb | 1640 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 1641 | else |
f42806df | 1642 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1643 | |
1644 | return; | |
1645 | ||
1646 | fail: | |
f2341e0a | 1647 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 1648 | |
a00973af | 1649 | if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1650 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1651 | else |
f42806df | 1652 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1653 | } |
1654 | ||
308d72dc LP |
1655 | static void service_enter_stop_by_notify(Service *s) { |
1656 | assert(s); | |
1657 | ||
1658 | unit_watch_all_pids(UNIT(s)); | |
1659 | ||
36c16a7c | 1660 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
308d72dc | 1661 | |
6041a7ee MS |
1662 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
1663 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
1664 | } |
1665 | ||
f42806df | 1666 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1667 | int r; |
5925dd3c | 1668 | |
034c6ed7 LP |
1669 | assert(s); |
1670 | ||
a0fef983 | 1671 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1672 | s->result = f; |
034c6ed7 | 1673 | |
5e94833f | 1674 | service_unwatch_control_pid(s); |
a911bb9a | 1675 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1676 | |
117dcc57 ZJS |
1677 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1678 | if (s->control_command) { | |
867b3b7d LP |
1679 | s->control_command_id = SERVICE_EXEC_STOP; |
1680 | ||
ecedd90f LP |
1681 | r = service_spawn(s, |
1682 | s->control_command, | |
21b2ce39 | 1683 | s->timeout_stop_usec, |
1703fa41 | 1684 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_SETENV_RESULT, |
ecedd90f LP |
1685 | &s->control_pid); |
1686 | if (r < 0) | |
034c6ed7 LP |
1687 | goto fail; |
1688 | ||
80876c20 LP |
1689 | service_set_state(s, SERVICE_STOP); |
1690 | } else | |
f42806df | 1691 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1692 | |
1693 | return; | |
1694 | ||
1695 | fail: | |
f2341e0a | 1696 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 1697 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1698 | } |
1699 | ||
957c3cf9 LP |
1700 | static bool service_good(Service *s) { |
1701 | int main_pid_ok; | |
1702 | assert(s); | |
1703 | ||
1704 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
1705 | return false; | |
1706 | ||
1707 | main_pid_ok = main_pid_good(s); | |
1708 | if (main_pid_ok > 0) /* It's alive */ | |
1709 | return true; | |
1710 | if (main_pid_ok == 0) /* It's dead */ | |
1711 | return false; | |
1712 | ||
1713 | /* OK, we don't know anything about the main PID, maybe | |
1714 | * because there is none. Let's check the control group | |
1715 | * instead. */ | |
1716 | ||
1717 | return cgroup_good(s) != 0; | |
1718 | } | |
1719 | ||
f42806df | 1720 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
1721 | assert(s); |
1722 | ||
a0fef983 | 1723 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1724 | s->result = f; |
80876c20 | 1725 | |
089b64d5 LP |
1726 | service_unwatch_control_pid(s); |
1727 | ||
957c3cf9 | 1728 | if (service_good(s)) { |
308d72dc LP |
1729 | |
1730 | /* If there are any queued up sd_notify() | |
1731 | * notifications, process them now */ | |
1732 | if (s->notify_state == NOTIFY_RELOADING) | |
1733 | service_enter_reload_by_notify(s); | |
1734 | else if (s->notify_state == NOTIFY_STOPPING) | |
1735 | service_enter_stop_by_notify(s); | |
36c16a7c | 1736 | else { |
308d72dc | 1737 | service_set_state(s, SERVICE_RUNNING); |
36c16a7c LP |
1738 | service_arm_timer(s, usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec)); |
1739 | } | |
308d72dc | 1740 | |
3d474ef7 | 1741 | } else if (f != SERVICE_SUCCESS) |
c3fda31d | 1742 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3d474ef7 | 1743 | else if (s->remain_after_exit) |
80876c20 LP |
1744 | service_set_state(s, SERVICE_EXITED); |
1745 | else | |
f42806df | 1746 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
1747 | } |
1748 | ||
034c6ed7 LP |
1749 | static void service_enter_start_post(Service *s) { |
1750 | int r; | |
1751 | assert(s); | |
1752 | ||
5e94833f | 1753 | service_unwatch_control_pid(s); |
842129f5 | 1754 | service_reset_watchdog(s); |
bb242b7b | 1755 | |
117dcc57 ZJS |
1756 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
1757 | if (s->control_command) { | |
867b3b7d LP |
1758 | s->control_command_id = SERVICE_EXEC_START_POST; |
1759 | ||
ecedd90f LP |
1760 | r = service_spawn(s, |
1761 | s->control_command, | |
21b2ce39 | 1762 | s->timeout_start_usec, |
1703fa41 | 1763 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL, |
ecedd90f LP |
1764 | &s->control_pid); |
1765 | if (r < 0) | |
034c6ed7 LP |
1766 | goto fail; |
1767 | ||
80876c20 LP |
1768 | service_set_state(s, SERVICE_START_POST); |
1769 | } else | |
f42806df | 1770 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1771 | |
1772 | return; | |
1773 | ||
1774 | fail: | |
f2341e0a | 1775 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 1776 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1777 | } |
1778 | ||
4ad49000 LP |
1779 | static void service_kill_control_processes(Service *s) { |
1780 | char *p; | |
1781 | ||
1782 | if (!UNIT(s)->cgroup_path) | |
1783 | return; | |
1784 | ||
63c372cb | 1785 | p = strjoina(UNIT(s)->cgroup_path, "/control"); |
1d98fef1 | 1786 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, CGROUP_SIGCONT|CGROUP_IGNORE_SELF|CGROUP_REMOVE, NULL, NULL, NULL); |
4ad49000 LP |
1787 | } |
1788 | ||
034c6ed7 | 1789 | static void service_enter_start(Service *s) { |
4ad49000 | 1790 | ExecCommand *c; |
36c16a7c | 1791 | usec_t timeout; |
034c6ed7 LP |
1792 | pid_t pid; |
1793 | int r; | |
1794 | ||
1795 | assert(s); | |
1796 | ||
41efeaec LP |
1797 | service_unwatch_control_pid(s); |
1798 | service_unwatch_main_pid(s); | |
80876c20 | 1799 | |
8f53a7b8 LP |
1800 | /* We want to ensure that nobody leaks processes from |
1801 | * START_PRE here, so let's go on a killing spree, People | |
1802 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 1803 | service_kill_control_processes(s); |
8f53a7b8 | 1804 | |
867b3b7d LP |
1805 | if (s->type == SERVICE_FORKING) { |
1806 | s->control_command_id = SERVICE_EXEC_START; | |
1807 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
1808 | ||
1809 | s->main_command = NULL; | |
1810 | } else { | |
1811 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
1812 | s->control_command = NULL; | |
1813 | ||
1814 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
1815 | } | |
34e9ba66 | 1816 | |
96fb8242 | 1817 | if (!c) { |
47fffb35 LP |
1818 | if (s->type != SERVICE_ONESHOT) { |
1819 | /* There's no command line configured for the main command? Hmm, that is strange. This can only | |
1820 | * happen if the configuration changes at runtime. In this case, let's enter a failure | |
1821 | * state. */ | |
1822 | log_unit_error(UNIT(s), "There's no 'start' task anymore we could start: %m"); | |
1823 | r = -ENXIO; | |
1824 | goto fail; | |
1825 | } | |
1826 | ||
96fb8242 LP |
1827 | service_enter_start_post(s); |
1828 | return; | |
1829 | } | |
1830 | ||
36c16a7c LP |
1831 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) |
1832 | /* For simple + idle this is the main process. We don't apply any timeout here, but | |
1833 | * service_enter_running() will later apply the .runtime_max_usec timeout. */ | |
1834 | timeout = USEC_INFINITY; | |
1835 | else | |
1836 | timeout = s->timeout_start_usec; | |
1837 | ||
ecedd90f LP |
1838 | r = service_spawn(s, |
1839 | c, | |
36c16a7c | 1840 | timeout, |
1703fa41 | 1841 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
1842 | &pid); |
1843 | if (r < 0) | |
034c6ed7 LP |
1844 | goto fail; |
1845 | ||
36c16a7c | 1846 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) { |
034c6ed7 LP |
1847 | /* For simple services we immediately start |
1848 | * the START_POST binaries. */ | |
1849 | ||
5925dd3c | 1850 | service_set_main_pid(s, pid); |
034c6ed7 LP |
1851 | service_enter_start_post(s); |
1852 | ||
1853 | } else if (s->type == SERVICE_FORKING) { | |
1854 | ||
1855 | /* For forking services we wait until the start | |
1856 | * process exited. */ | |
1857 | ||
e55224ca | 1858 | s->control_pid = pid; |
80876c20 LP |
1859 | service_set_state(s, SERVICE_START); |
1860 | ||
36c16a7c | 1861 | } else if (IN_SET(s->type, SERVICE_ONESHOT, SERVICE_DBUS, SERVICE_NOTIFY)) { |
7d55e835 | 1862 | |
34e9ba66 | 1863 | /* For oneshot services we wait until the start |
7d55e835 LP |
1864 | * process exited, too, but it is our main process. */ |
1865 | ||
05e343b7 | 1866 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
1867 | * but wait for the bus name to appear on the |
1868 | * bus. Notify services are similar. */ | |
05e343b7 | 1869 | |
5925dd3c | 1870 | service_set_main_pid(s, pid); |
80876c20 | 1871 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
1872 | } else |
1873 | assert_not_reached("Unknown service type"); | |
1874 | ||
1875 | return; | |
1876 | ||
1877 | fail: | |
f2341e0a | 1878 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
c3fda31d | 1879 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1880 | } |
1881 | ||
1882 | static void service_enter_start_pre(Service *s) { | |
1883 | int r; | |
1884 | ||
1885 | assert(s); | |
1886 | ||
5e94833f LP |
1887 | service_unwatch_control_pid(s); |
1888 | ||
117dcc57 ZJS |
1889 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
1890 | if (s->control_command) { | |
8f53a7b8 LP |
1891 | /* Before we start anything, let's clear up what might |
1892 | * be left from previous runs. */ | |
4ad49000 | 1893 | service_kill_control_processes(s); |
8f53a7b8 | 1894 | |
867b3b7d LP |
1895 | s->control_command_id = SERVICE_EXEC_START_PRE; |
1896 | ||
ecedd90f LP |
1897 | r = service_spawn(s, |
1898 | s->control_command, | |
21b2ce39 | 1899 | s->timeout_start_usec, |
1703fa41 | 1900 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, |
ecedd90f LP |
1901 | &s->control_pid); |
1902 | if (r < 0) | |
034c6ed7 LP |
1903 | goto fail; |
1904 | ||
80876c20 LP |
1905 | service_set_state(s, SERVICE_START_PRE); |
1906 | } else | |
034c6ed7 LP |
1907 | service_enter_start(s); |
1908 | ||
1909 | return; | |
1910 | ||
1911 | fail: | |
f2341e0a | 1912 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 1913 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1914 | } |
1915 | ||
1916 | static void service_enter_restart(Service *s) { | |
4afd3348 | 1917 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 1918 | int r; |
398ef8ba | 1919 | |
034c6ed7 LP |
1920 | assert(s); |
1921 | ||
a8bb2e65 LP |
1922 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
1923 | /* Don't restart things if we are going down anyway */ | |
f2341e0a | 1924 | log_unit_info(UNIT(s), "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 1925 | |
36c16a7c | 1926 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
a8bb2e65 | 1927 | if (r < 0) |
2edfa366 | 1928 | goto fail; |
feae8adb DW |
1929 | |
1930 | return; | |
2edfa366 LP |
1931 | } |
1932 | ||
48bb5876 DW |
1933 | /* Any units that are bound to this service must also be |
1934 | * restarted. We use JOB_RESTART (instead of the more obvious | |
1935 | * JOB_START) here so that those dependency jobs will be added | |
1936 | * as well. */ | |
4bd29fe5 | 1937 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, &error, NULL); |
48bb5876 | 1938 | if (r < 0) |
034c6ed7 LP |
1939 | goto fail; |
1940 | ||
7a0019d3 LP |
1941 | /* Count the jobs we enqueue for restarting. This counter is maintained as long as the unit isn't fully |
1942 | * stopped, i.e. as long as it remains up or remains in auto-start states. The use can reset the counter | |
1943 | * explicitly however via the usual "systemctl reset-failure" logic. */ | |
1944 | s->n_restarts ++; | |
1945 | s->flush_n_restarts = false; | |
1946 | ||
1947 | log_struct(LOG_INFO, | |
1948 | "MESSAGE_ID=" SD_MESSAGE_UNIT_RESTART_SCHEDULED_STR, | |
1949 | LOG_UNIT_ID(UNIT(s)), | |
1950 | LOG_UNIT_MESSAGE(UNIT(s), "Scheduled restart job, restart counter is at %u.", s->n_restarts), | |
1951 | "N_RESTARTS=%u", s->n_restarts, | |
1952 | NULL); | |
1953 | ||
1954 | /* Notify clients about changed restart counter */ | |
1955 | unit_add_to_dbus_queue(UNIT(s)); | |
1956 | ||
a8bb2e65 LP |
1957 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
1958 | * it will be canceled as part of the service_stop() call that | |
1959 | * is executed as part of JOB_RESTART. */ | |
1960 | ||
034c6ed7 LP |
1961 | return; |
1962 | ||
1963 | fail: | |
f2341e0a | 1964 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, -r)); |
f42806df | 1965 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1966 | } |
1967 | ||
308d72dc | 1968 | static void service_enter_reload_by_notify(Service *s) { |
15d167f8 JW |
1969 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
1970 | int r; | |
1971 | ||
308d72dc LP |
1972 | assert(s); |
1973 | ||
36c16a7c | 1974 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_start_usec)); |
308d72dc | 1975 | service_set_state(s, SERVICE_RELOAD); |
15d167f8 JW |
1976 | |
1977 | /* service_enter_reload_by_notify is never called during a reload, thus no loops are possible. */ | |
1978 | r = manager_propagate_reload(UNIT(s)->manager, UNIT(s), JOB_FAIL, &error); | |
1979 | if (r < 0) | |
1980 | log_unit_warning(UNIT(s), "Failed to schedule propagation of reload: %s", bus_error_message(&error, -r)); | |
308d72dc LP |
1981 | } |
1982 | ||
034c6ed7 LP |
1983 | static void service_enter_reload(Service *s) { |
1984 | int r; | |
1985 | ||
1986 | assert(s); | |
1987 | ||
5e94833f | 1988 | service_unwatch_control_pid(s); |
95c906ae | 1989 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 1990 | |
117dcc57 ZJS |
1991 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
1992 | if (s->control_command) { | |
867b3b7d LP |
1993 | s->control_command_id = SERVICE_EXEC_RELOAD; |
1994 | ||
ecedd90f LP |
1995 | r = service_spawn(s, |
1996 | s->control_command, | |
21b2ce39 | 1997 | s->timeout_start_usec, |
1703fa41 | 1998 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL, |
ecedd90f LP |
1999 | &s->control_pid); |
2000 | if (r < 0) | |
034c6ed7 LP |
2001 | goto fail; |
2002 | ||
80876c20 LP |
2003 | service_set_state(s, SERVICE_RELOAD); |
2004 | } else | |
f42806df | 2005 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2006 | |
2007 | return; | |
2008 | ||
2009 | fail: | |
f2341e0a | 2010 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
2011 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2012 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2013 | } |
2014 | ||
f42806df | 2015 | static void service_run_next_control(Service *s) { |
36c16a7c | 2016 | usec_t timeout; |
034c6ed7 LP |
2017 | int r; |
2018 | ||
2019 | assert(s); | |
2020 | assert(s->control_command); | |
2021 | assert(s->control_command->command_next); | |
2022 | ||
34e9ba66 | 2023 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2024 | |
34e9ba66 | 2025 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2026 | service_unwatch_control_pid(s); |
2027 | ||
36c16a7c LP |
2028 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
2029 | timeout = s->timeout_start_usec; | |
2030 | else | |
2031 | timeout = s->timeout_stop_usec; | |
2032 | ||
ecedd90f LP |
2033 | r = service_spawn(s, |
2034 | s->control_command, | |
36c16a7c | 2035 | timeout, |
1703fa41 | 2036 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL| |
136dc4c4 LP |
2037 | (IN_SET(s->control_command_id, SERVICE_EXEC_START_PRE, SERVICE_EXEC_STOP_POST) ? EXEC_APPLY_TTY_STDIN : 0)| |
2038 | (IN_SET(s->control_command_id, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST) ? EXEC_SETENV_RESULT : 0), | |
ecedd90f LP |
2039 | &s->control_pid); |
2040 | if (r < 0) | |
034c6ed7 LP |
2041 | goto fail; |
2042 | ||
2043 | return; | |
2044 | ||
2045 | fail: | |
f2341e0a | 2046 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 2047 | |
c3fda31d | 2048 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_STOP)) |
f42806df | 2049 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2050 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2051 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2052 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2053 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2054 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2055 | } else |
f42806df | 2056 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2057 | } |
2058 | ||
f42806df | 2059 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2060 | pid_t pid; |
2061 | int r; | |
2062 | ||
2063 | assert(s); | |
867b3b7d LP |
2064 | assert(s->main_command); |
2065 | assert(s->main_command->command_next); | |
2066 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2067 | |
867b3b7d | 2068 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2069 | service_unwatch_main_pid(s); |
2070 | ||
ecedd90f LP |
2071 | r = service_spawn(s, |
2072 | s->main_command, | |
21b2ce39 | 2073 | s->timeout_start_usec, |
1703fa41 | 2074 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
2075 | &pid); |
2076 | if (r < 0) | |
34e9ba66 LP |
2077 | goto fail; |
2078 | ||
2079 | service_set_main_pid(s, pid); | |
2080 | ||
2081 | return; | |
2082 | ||
2083 | fail: | |
f2341e0a | 2084 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 2085 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2086 | } |
2087 | ||
87f0e418 LP |
2088 | static int service_start(Unit *u) { |
2089 | Service *s = SERVICE(u); | |
07299350 | 2090 | int r; |
5cb5a6ff LP |
2091 | |
2092 | assert(s); | |
2093 | ||
034c6ed7 LP |
2094 | /* We cannot fulfill this request right now, try again later |
2095 | * please! */ | |
a00973af LP |
2096 | if (IN_SET(s->state, |
2097 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2098 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
5cb5a6ff LP |
2099 | return -EAGAIN; |
2100 | ||
034c6ed7 | 2101 | /* Already on it! */ |
a00973af | 2102 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
2103 | return 0; |
2104 | ||
2e9d6c12 | 2105 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2106 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2107 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2108 | * service should be manually restarted, not started. We |
2109 | * simply return EAGAIN here, so that any start jobs stay | |
2110 | * queued, and assume that the auto restart timer will | |
2111 | * eventually trigger the restart. */ | |
2112 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2113 | return -EAGAIN; |
2e9d6c12 | 2114 | |
a00973af | 2115 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 2116 | |
07299350 LP |
2117 | /* Make sure we don't enter a busy loop of some kind. */ |
2118 | r = unit_start_limit_test(u); | |
2119 | if (r < 0) { | |
2120 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT_HIT, false); | |
2121 | return r; | |
2122 | } | |
2123 | ||
4b58153d LP |
2124 | r = unit_acquire_invocation_id(u); |
2125 | if (r < 0) | |
2126 | return r; | |
2127 | ||
f42806df LP |
2128 | s->result = SERVICE_SUCCESS; |
2129 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2130 | s->main_pid_known = false; |
6dfa5494 | 2131 | s->main_pid_alien = false; |
47342320 | 2132 | s->forbid_restart = false; |
5ad096b3 | 2133 | s->reset_cpu_usage = true; |
034c6ed7 | 2134 | |
a1e58e8e | 2135 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
2136 | s->status_errno = 0; |
2137 | ||
308d72dc LP |
2138 | s->notify_state = NOTIFY_UNKNOWN; |
2139 | ||
2787d83c M |
2140 | s->watchdog_override_enable = false; |
2141 | s->watchdog_override_usec = 0; | |
2142 | ||
7a0019d3 LP |
2143 | /* This is not an automatic restart? Flush the restart counter then */ |
2144 | if (s->flush_n_restarts) { | |
2145 | s->n_restarts = 0; | |
2146 | s->flush_n_restarts = false; | |
2147 | } | |
2148 | ||
034c6ed7 | 2149 | service_enter_start_pre(s); |
82a2b6bb | 2150 | return 1; |
5cb5a6ff LP |
2151 | } |
2152 | ||
87f0e418 LP |
2153 | static int service_stop(Unit *u) { |
2154 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2155 | |
2156 | assert(s); | |
2157 | ||
a509f0e6 | 2158 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2159 | s->forbid_restart = true; |
034c6ed7 | 2160 | |
e537352b | 2161 | /* Already on it */ |
a00973af LP |
2162 | if (IN_SET(s->state, |
2163 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2164 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
e537352b LP |
2165 | return 0; |
2166 | ||
f0c7b229 | 2167 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2168 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2169 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2170 | return 0; |
2171 | } | |
2172 | ||
3f6c78dc LP |
2173 | /* If there's already something running we go directly into |
2174 | * kill mode. */ | |
a00973af | 2175 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD)) { |
f42806df | 2176 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2177 | return 0; |
2178 | } | |
5cb5a6ff | 2179 | |
a00973af | 2180 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2181 | |
f42806df | 2182 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2183 | return 1; |
5cb5a6ff LP |
2184 | } |
2185 | ||
87f0e418 LP |
2186 | static int service_reload(Unit *u) { |
2187 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2188 | |
2189 | assert(s); | |
2190 | ||
80876c20 | 2191 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
2192 | |
2193 | service_enter_reload(s); | |
2d018ae2 | 2194 | return 1; |
5cb5a6ff LP |
2195 | } |
2196 | ||
44a6b1b6 | 2197 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2198 | Service *s = SERVICE(u); |
034c6ed7 LP |
2199 | |
2200 | assert(s); | |
2201 | ||
2202 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2203 | } | |
2204 | ||
e266c068 MS |
2205 | static unsigned service_exec_command_index(Unit *u, ServiceExecCommand id, ExecCommand *current) { |
2206 | Service *s = SERVICE(u); | |
2207 | unsigned idx = 0; | |
2208 | ExecCommand *first, *c; | |
2209 | ||
2210 | assert(s); | |
2211 | ||
2212 | first = s->exec_command[id]; | |
2213 | ||
2214 | /* Figure out where we are in the list by walking back to the beginning */ | |
2215 | for (c = current; c != first; c = c->command_prev) | |
2216 | idx++; | |
2217 | ||
2218 | return idx; | |
2219 | } | |
2220 | ||
2221 | static int service_serialize_exec_command(Unit *u, FILE *f, ExecCommand *command) { | |
2222 | Service *s = SERVICE(u); | |
2223 | ServiceExecCommand id; | |
2224 | unsigned idx; | |
2225 | const char *type; | |
2226 | char **arg; | |
e266c068 MS |
2227 | _cleanup_free_ char *args = NULL, *p = NULL; |
2228 | size_t allocated = 0, length = 0; | |
2229 | ||
2230 | assert(s); | |
2231 | assert(f); | |
2232 | ||
2233 | if (!command) | |
2234 | return 0; | |
2235 | ||
2236 | if (command == s->control_command) { | |
2237 | type = "control"; | |
2238 | id = s->control_command_id; | |
2239 | } else { | |
2240 | type = "main"; | |
2241 | id = SERVICE_EXEC_START; | |
2242 | } | |
2243 | ||
2244 | idx = service_exec_command_index(u, id, command); | |
2245 | ||
2246 | STRV_FOREACH(arg, command->argv) { | |
2247 | size_t n; | |
2248 | _cleanup_free_ char *e = NULL; | |
2249 | ||
2250 | e = xescape(*arg, WHITESPACE); | |
2251 | if (!e) | |
2252 | return -ENOMEM; | |
2253 | ||
2254 | n = strlen(e); | |
2255 | if (!GREEDY_REALLOC(args, allocated, length + 1 + n + 1)) | |
2256 | return -ENOMEM; | |
2257 | ||
2258 | if (length > 0) | |
2259 | args[length++] = ' '; | |
2260 | ||
2261 | memcpy(args + length, e, n); | |
2262 | length += n; | |
2263 | } | |
2264 | ||
2265 | if (!GREEDY_REALLOC(args, allocated, length + 1)) | |
2266 | return -ENOMEM; | |
2267 | args[length++] = 0; | |
2268 | ||
2269 | p = xescape(command->path, WHITESPACE); | |
2270 | if (!p) | |
2271 | return -ENOMEM; | |
2272 | ||
2273 | fprintf(f, "%s-command=%s %u %s %s\n", type, service_exec_command_to_string(id), idx, p, args); | |
2274 | ||
2275 | return 0; | |
2276 | } | |
2277 | ||
a16e1123 LP |
2278 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2279 | Service *s = SERVICE(u); | |
2339fc93 | 2280 | ServiceFDStore *fs; |
a34ceba6 | 2281 | int r; |
a16e1123 LP |
2282 | |
2283 | assert(u); | |
2284 | assert(f); | |
2285 | assert(fds); | |
2286 | ||
2287 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
2288 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
2289 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2290 | |
2291 | if (s->control_pid > 0) | |
f06db334 | 2292 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2293 | |
5925dd3c | 2294 | if (s->main_pid_known && s->main_pid > 0) |
ccd06097 | 2295 | unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 LP |
2296 | |
2297 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
de1d4f9b | 2298 | unit_serialize_item(u, f, "bus-name-good", yes_no(s->bus_name_good)); |
d8ccf5fd | 2299 | unit_serialize_item(u, f, "bus-name-owner", s->bus_name_owner); |
a16e1123 | 2300 | |
7a0019d3 LP |
2301 | unit_serialize_item_format(u, f, "n-restarts", "%u", s->n_restarts); |
2302 | unit_serialize_item(u, f, "n-restarts", yes_no(s->flush_n_restarts)); | |
2303 | ||
a34ceba6 LP |
2304 | r = unit_serialize_item_escaped(u, f, "status-text", s->status_text); |
2305 | if (r < 0) | |
2306 | return r; | |
3a2776bc | 2307 | |
e266c068 MS |
2308 | service_serialize_exec_command(u, f, s->control_command); |
2309 | service_serialize_exec_command(u, f, s->main_command); | |
a16e1123 | 2310 | |
a34ceba6 LP |
2311 | r = unit_serialize_item_fd(u, f, fds, "stdin-fd", s->stdin_fd); |
2312 | if (r < 0) | |
2313 | return r; | |
2314 | r = unit_serialize_item_fd(u, f, fds, "stdout-fd", s->stdout_fd); | |
2315 | if (r < 0) | |
2316 | return r; | |
2317 | r = unit_serialize_item_fd(u, f, fds, "stderr-fd", s->stderr_fd); | |
2318 | if (r < 0) | |
2319 | return r; | |
e44da745 | 2320 | |
9dfb64f8 ZJS |
2321 | if (UNIT_ISSET(s->accept_socket)) { |
2322 | r = unit_serialize_item(u, f, "accept-socket", UNIT_DEREF(s->accept_socket)->id); | |
2323 | if (r < 0) | |
2324 | return r; | |
2325 | } | |
2326 | ||
a34ceba6 | 2327 | r = unit_serialize_item_fd(u, f, fds, "socket-fd", s->socket_fd); |
a34ceba6 LP |
2328 | if (r < 0) |
2329 | return r; | |
e44da745 | 2330 | |
2339fc93 | 2331 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2332 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2333 | int copy; |
2334 | ||
2335 | copy = fdset_put_dup(fds, fs->fd); | |
2336 | if (copy < 0) | |
2337 | return copy; | |
2338 | ||
8dd4c05b LP |
2339 | c = cescape(fs->fdname); |
2340 | ||
2341 | unit_serialize_item_format(u, f, "fd-store-fd", "%i %s", copy, strempty(c)); | |
2339fc93 LP |
2342 | } |
2343 | ||
ecdbca40 | 2344 | if (s->main_exec_status.pid > 0) { |
f06db334 LP |
2345 | unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2346 | dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2347 | dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2348 | |
799fd0fd | 2349 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
f06db334 LP |
2350 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2351 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2352 | } |
2353 | } | |
f06db334 | 2354 | |
36b693a6 | 2355 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); |
ecdbca40 | 2356 | |
a34ceba6 | 2357 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 2358 | |
2787d83c M |
2359 | if (s->watchdog_override_enable) |
2360 | unit_serialize_item_format(u, f, "watchdog-override-usec", USEC_FMT, s->watchdog_override_usec); | |
2361 | ||
a16e1123 LP |
2362 | return 0; |
2363 | } | |
2364 | ||
e266c068 MS |
2365 | static int service_deserialize_exec_command(Unit *u, const char *key, const char *value) { |
2366 | Service *s = SERVICE(u); | |
2367 | int r; | |
2368 | unsigned idx = 0, i; | |
2369 | bool control, found = false; | |
2370 | ServiceExecCommand id = _SERVICE_EXEC_COMMAND_INVALID; | |
2371 | ExecCommand *command = NULL; | |
6eeec374 | 2372 | _cleanup_free_ char *path = NULL; |
e266c068 MS |
2373 | _cleanup_strv_free_ char **argv = NULL; |
2374 | ||
2375 | enum ExecCommandState { | |
2376 | STATE_EXEC_COMMAND_TYPE, | |
2377 | STATE_EXEC_COMMAND_INDEX, | |
2378 | STATE_EXEC_COMMAND_PATH, | |
2379 | STATE_EXEC_COMMAND_ARGS, | |
2380 | _STATE_EXEC_COMMAND_MAX, | |
2381 | _STATE_EXEC_COMMAND_INVALID = -1, | |
2382 | } state; | |
2383 | ||
2384 | assert(s); | |
2385 | assert(key); | |
2386 | assert(value); | |
2387 | ||
2388 | control = streq(key, "control-command"); | |
2389 | ||
2390 | state = STATE_EXEC_COMMAND_TYPE; | |
2391 | ||
2392 | for (;;) { | |
2393 | _cleanup_free_ char *arg = NULL; | |
2394 | ||
2395 | r = extract_first_word(&value, &arg, NULL, EXTRACT_CUNESCAPE); | |
2396 | if (r == 0) | |
2397 | break; | |
2398 | else if (r < 0) | |
2399 | return r; | |
2400 | ||
2401 | switch (state) { | |
2402 | case STATE_EXEC_COMMAND_TYPE: | |
2403 | id = service_exec_command_from_string(arg); | |
2404 | if (id < 0) | |
2405 | return -EINVAL; | |
2406 | ||
2407 | state = STATE_EXEC_COMMAND_INDEX; | |
2408 | break; | |
2409 | case STATE_EXEC_COMMAND_INDEX: | |
2410 | r = safe_atou(arg, &idx); | |
2411 | if (r < 0) | |
2412 | return -EINVAL; | |
2413 | ||
2414 | state = STATE_EXEC_COMMAND_PATH; | |
2415 | break; | |
2416 | case STATE_EXEC_COMMAND_PATH: | |
2417 | path = arg; | |
2418 | arg = NULL; | |
2419 | state = STATE_EXEC_COMMAND_ARGS; | |
2420 | ||
2421 | if (!path_is_absolute(path)) | |
2422 | return -EINVAL; | |
2423 | break; | |
2424 | case STATE_EXEC_COMMAND_ARGS: | |
2425 | r = strv_extend(&argv, arg); | |
2426 | if (r < 0) | |
2427 | return -ENOMEM; | |
2428 | break; | |
2429 | default: | |
2430 | assert_not_reached("Unknown error at deserialization of exec command"); | |
2431 | break; | |
2432 | } | |
2433 | } | |
2434 | ||
2435 | if (state != STATE_EXEC_COMMAND_ARGS) | |
2436 | return -EINVAL; | |
2437 | ||
2438 | /* Let's check whether exec command on given offset matches data that we just deserialized */ | |
2439 | for (command = s->exec_command[id], i = 0; command; command = command->command_next, i++) { | |
2440 | if (i != idx) | |
2441 | continue; | |
2442 | ||
2443 | found = strv_equal(argv, command->argv) && streq(command->path, path); | |
2444 | break; | |
2445 | } | |
2446 | ||
2447 | if (!found) { | |
2448 | /* Command at the index we serialized is different, let's look for command that exactly | |
2449 | * matches but is on different index. If there is no such command we will not resume execution. */ | |
2450 | for (command = s->exec_command[id]; command; command = command->command_next) | |
2451 | if (strv_equal(command->argv, argv) && streq(command->path, path)) | |
2452 | break; | |
2453 | } | |
2454 | ||
2455 | if (command && control) | |
2456 | s->control_command = command; | |
2457 | else if (command) | |
2458 | s->main_command = command; | |
2459 | else | |
2460 | log_unit_warning(u, "Current command vanished from the unit file, execution of the command list won't be resumed."); | |
2461 | ||
2462 | return 0; | |
2463 | } | |
2464 | ||
a16e1123 LP |
2465 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { |
2466 | Service *s = SERVICE(u); | |
2339fc93 | 2467 | int r; |
a16e1123 LP |
2468 | |
2469 | assert(u); | |
2470 | assert(key); | |
2471 | assert(value); | |
2472 | assert(fds); | |
2473 | ||
2474 | if (streq(key, "state")) { | |
2475 | ServiceState state; | |
2476 | ||
117dcc57 ZJS |
2477 | state = service_state_from_string(value); |
2478 | if (state < 0) | |
f2341e0a | 2479 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2480 | else |
2481 | s->deserialized_state = state; | |
f42806df LP |
2482 | } else if (streq(key, "result")) { |
2483 | ServiceResult f; | |
2484 | ||
2485 | f = service_result_from_string(value); | |
2486 | if (f < 0) | |
f2341e0a | 2487 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2488 | else if (f != SERVICE_SUCCESS) |
2489 | s->result = f; | |
2490 | ||
2491 | } else if (streq(key, "reload-result")) { | |
2492 | ServiceResult f; | |
2493 | ||
2494 | f = service_result_from_string(value); | |
2495 | if (f < 0) | |
f2341e0a | 2496 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2497 | else if (f != SERVICE_SUCCESS) |
2498 | s->reload_result = f; | |
a16e1123 | 2499 | |
a16e1123 | 2500 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2501 | pid_t pid; |
a16e1123 | 2502 | |
e364ad06 | 2503 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2504 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2505 | else |
e55224ca | 2506 | s->control_pid = pid; |
a16e1123 | 2507 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2508 | pid_t pid; |
a16e1123 | 2509 | |
e364ad06 | 2510 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2511 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
7400b9d2 LP |
2512 | else { |
2513 | service_set_main_pid(s, pid); | |
2514 | unit_watch_pid(UNIT(s), pid); | |
2515 | } | |
a16e1123 LP |
2516 | } else if (streq(key, "main-pid-known")) { |
2517 | int b; | |
2518 | ||
117dcc57 ZJS |
2519 | b = parse_boolean(value); |
2520 | if (b < 0) | |
f2341e0a | 2521 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2522 | else |
2523 | s->main_pid_known = b; | |
de1d4f9b WF |
2524 | } else if (streq(key, "bus-name-good")) { |
2525 | int b; | |
2526 | ||
2527 | b = parse_boolean(value); | |
2528 | if (b < 0) | |
2529 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2530 | else | |
2531 | s->bus_name_good = b; | |
d8ccf5fd DM |
2532 | } else if (streq(key, "bus-name-owner")) { |
2533 | r = free_and_strdup(&s->bus_name_owner, value); | |
2534 | if (r < 0) | |
2535 | log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value); | |
3a2776bc LP |
2536 | } else if (streq(key, "status-text")) { |
2537 | char *t; | |
2538 | ||
f2341e0a LP |
2539 | r = cunescape(value, 0, &t); |
2540 | if (r < 0) | |
2541 | log_unit_debug_errno(u, r, "Failed to unescape status text: %s", value); | |
117dcc57 | 2542 | else { |
3a2776bc LP |
2543 | free(s->status_text); |
2544 | s->status_text = t; | |
2545 | } | |
2546 | ||
9dfb64f8 ZJS |
2547 | } else if (streq(key, "accept-socket")) { |
2548 | Unit *socket; | |
2549 | ||
2550 | r = manager_load_unit(u->manager, value, NULL, NULL, &socket); | |
2551 | if (r < 0) | |
2552 | log_unit_debug_errno(u, r, "Failed to load accept-socket unit: %s", value); | |
2553 | else { | |
2554 | unit_ref_set(&s->accept_socket, socket); | |
2555 | SOCKET(socket)->n_connections++; | |
2556 | } | |
2557 | ||
a16e1123 LP |
2558 | } else if (streq(key, "socket-fd")) { |
2559 | int fd; | |
2560 | ||
2561 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2562 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 2563 | else { |
574634bc | 2564 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
2565 | s->socket_fd = fdset_remove(fds, fd); |
2566 | } | |
2339fc93 | 2567 | } else if (streq(key, "fd-store-fd")) { |
8dd4c05b LP |
2568 | const char *fdv; |
2569 | size_t pf; | |
2339fc93 LP |
2570 | int fd; |
2571 | ||
8dd4c05b LP |
2572 | pf = strcspn(value, WHITESPACE); |
2573 | fdv = strndupa(value, pf); | |
2574 | ||
2575 | if (safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2576 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
2339fc93 | 2577 | else { |
8dd4c05b LP |
2578 | _cleanup_free_ char *t = NULL; |
2579 | const char *fdn; | |
2580 | ||
2581 | fdn = value + pf; | |
2582 | fdn += strspn(fdn, WHITESPACE); | |
2583 | (void) cunescape(fdn, 0, &t); | |
2584 | ||
2585 | r = service_add_fd_store(s, fd, t); | |
2339fc93 | 2586 | if (r < 0) |
f2341e0a | 2587 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); |
9021ff17 | 2588 | else |
2339fc93 LP |
2589 | fdset_remove(fds, fd); |
2590 | } | |
2591 | ||
ecdbca40 LP |
2592 | } else if (streq(key, "main-exec-status-pid")) { |
2593 | pid_t pid; | |
2594 | ||
e364ad06 | 2595 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2596 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
2597 | else |
2598 | s->main_exec_status.pid = pid; | |
2599 | } else if (streq(key, "main-exec-status-code")) { | |
2600 | int i; | |
2601 | ||
e364ad06 | 2602 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2603 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
2604 | else |
2605 | s->main_exec_status.code = i; | |
2606 | } else if (streq(key, "main-exec-status-status")) { | |
2607 | int i; | |
2608 | ||
e364ad06 | 2609 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2610 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
2611 | else |
2612 | s->main_exec_status.status = i; | |
799fd0fd LP |
2613 | } else if (streq(key, "main-exec-status-start")) |
2614 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
2615 | else if (streq(key, "main-exec-status-exit")) | |
2616 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
2617 | else if (streq(key, "watchdog-timestamp")) |
2618 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 2619 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2620 | int b; |
2621 | ||
2622 | b = parse_boolean(value); | |
2623 | if (b < 0) | |
f2341e0a | 2624 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
2625 | else |
2626 | s->forbid_restart = b; | |
a34ceba6 LP |
2627 | } else if (streq(key, "stdin-fd")) { |
2628 | int fd; | |
2629 | ||
2630 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2631 | log_unit_debug(u, "Failed to parse stdin-fd value: %s", value); | |
2632 | else { | |
2633 | asynchronous_close(s->stdin_fd); | |
2634 | s->stdin_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2635 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2636 | } |
2637 | } else if (streq(key, "stdout-fd")) { | |
2638 | int fd; | |
2639 | ||
2640 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2641 | log_unit_debug(u, "Failed to parse stdout-fd value: %s", value); | |
2642 | else { | |
2643 | asynchronous_close(s->stdout_fd); | |
2644 | s->stdout_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2645 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2646 | } |
2647 | } else if (streq(key, "stderr-fd")) { | |
2648 | int fd; | |
2649 | ||
2650 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2651 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
2652 | else { | |
2653 | asynchronous_close(s->stderr_fd); | |
2654 | s->stderr_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2655 | s->exec_context.stdio_as_fds = true; |
a34ceba6 | 2656 | } |
2787d83c M |
2657 | } else if (streq(key, "watchdog-override-usec")) { |
2658 | usec_t watchdog_override_usec; | |
2659 | if (timestamp_deserialize(value, &watchdog_override_usec) < 0) | |
2660 | log_unit_debug(u, "Failed to parse watchdog_override_usec value: %s", value); | |
2661 | else { | |
2662 | s->watchdog_override_enable = true; | |
2663 | s->watchdog_override_usec = watchdog_override_usec; | |
2664 | } | |
e266c068 MS |
2665 | } else if (STR_IN_SET(key, "main-command", "control-command")) { |
2666 | r = service_deserialize_exec_command(u, key, value); | |
2667 | if (r < 0) | |
2668 | log_unit_debug_errno(u, r, "Failed to parse serialized command \"%s\": %m", value); | |
7a0019d3 LP |
2669 | |
2670 | } else if (streq(key, "n-restarts")) { | |
2671 | r = safe_atou(value, &s->n_restarts); | |
2672 | if (r < 0) | |
2673 | log_unit_debug_errno(u, r, "Failed to parse serialized restart counter '%s': %m", value); | |
2674 | ||
2675 | } else if (streq(key, "flush-n-restarts")) { | |
2676 | r = parse_boolean(value); | |
2677 | if (r < 0) | |
2678 | log_unit_debug_errno(u, r, "Failed to parse serialized flush restart counter setting '%s': %m", value); | |
2679 | else | |
2680 | s->flush_n_restarts = r; | |
c17ec25e | 2681 | } else |
f2341e0a | 2682 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
2683 | |
2684 | return 0; | |
2685 | } | |
2686 | ||
44a6b1b6 | 2687 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
2688 | const UnitActiveState *table; |
2689 | ||
87f0e418 | 2690 | assert(u); |
5cb5a6ff | 2691 | |
e056b01d LP |
2692 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
2693 | ||
2694 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
2695 | } |
2696 | ||
10a94420 LP |
2697 | static const char *service_sub_state_to_string(Unit *u) { |
2698 | assert(u); | |
2699 | ||
2700 | return service_state_to_string(SERVICE(u)->state); | |
2701 | } | |
2702 | ||
701cc384 LP |
2703 | static bool service_check_gc(Unit *u) { |
2704 | Service *s = SERVICE(u); | |
2705 | ||
2706 | assert(s); | |
2707 | ||
6d55002a LP |
2708 | /* Never clean up services that still have a process around, |
2709 | * even if the service is formally dead. */ | |
2710 | if (cgroup_good(s) > 0 || | |
2711 | main_pid_good(s) > 0 || | |
2712 | control_pid_good(s) > 0) | |
2713 | return true; | |
2714 | ||
6d55002a LP |
2715 | return false; |
2716 | } | |
2717 | ||
3a111838 MS |
2718 | static int service_retry_pid_file(Service *s) { |
2719 | int r; | |
2720 | ||
2721 | assert(s->pid_file); | |
2722 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2723 | ||
2724 | r = service_load_pid_file(s, false); | |
2725 | if (r < 0) | |
2726 | return r; | |
2727 | ||
2728 | service_unwatch_pid_file(s); | |
2729 | ||
f42806df | 2730 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
2731 | return 0; |
2732 | } | |
2733 | ||
2734 | static int service_watch_pid_file(Service *s) { | |
2735 | int r; | |
2736 | ||
f2341e0a | 2737 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 2738 | |
718db961 | 2739 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
2740 | if (r < 0) |
2741 | goto fail; | |
2742 | ||
2743 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 2744 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
2745 | service_retry_pid_file(s); |
2746 | ||
2747 | return 0; | |
2748 | fail: | |
f2341e0a | 2749 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
2750 | service_unwatch_pid_file(s); |
2751 | return r; | |
2752 | } | |
2753 | ||
2754 | static int service_demand_pid_file(Service *s) { | |
2755 | PathSpec *ps; | |
2756 | ||
2757 | assert(s->pid_file); | |
2758 | assert(!s->pid_file_pathspec); | |
2759 | ||
2760 | ps = new0(PathSpec, 1); | |
2761 | if (!ps) | |
2762 | return -ENOMEM; | |
2763 | ||
718db961 | 2764 | ps->unit = UNIT(s); |
3a111838 MS |
2765 | ps->path = strdup(s->pid_file); |
2766 | if (!ps->path) { | |
2767 | free(ps); | |
2768 | return -ENOMEM; | |
2769 | } | |
2770 | ||
2771 | path_kill_slashes(ps->path); | |
2772 | ||
2773 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2774 | * keep their PID file open all the time. */ | |
2775 | ps->type = PATH_MODIFIED; | |
2776 | ps->inotify_fd = -1; | |
2777 | ||
2778 | s->pid_file_pathspec = ps; | |
2779 | ||
2780 | return service_watch_pid_file(s); | |
2781 | } | |
2782 | ||
718db961 | 2783 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2784 | PathSpec *p = userdata; |
2785 | Service *s; | |
2786 | ||
2787 | assert(p); | |
2788 | ||
2789 | s = SERVICE(p->unit); | |
3a111838 MS |
2790 | |
2791 | assert(s); | |
2792 | assert(fd >= 0); | |
2793 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2794 | assert(s->pid_file_pathspec); | |
57020a3a | 2795 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2796 | |
f2341e0a | 2797 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 2798 | |
e14c2802 | 2799 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2800 | goto fail; |
2801 | ||
2802 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2803 | return 0; |
3a111838 MS |
2804 | |
2805 | if (service_watch_pid_file(s) < 0) | |
2806 | goto fail; | |
2807 | ||
718db961 LP |
2808 | return 0; |
2809 | ||
3a111838 MS |
2810 | fail: |
2811 | service_unwatch_pid_file(s); | |
f42806df | 2812 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2813 | return 0; |
3a111838 MS |
2814 | } |
2815 | ||
a911bb9a LP |
2816 | static void service_notify_cgroup_empty_event(Unit *u) { |
2817 | Service *s = SERVICE(u); | |
2818 | ||
2819 | assert(u); | |
2820 | ||
f2341e0a | 2821 | log_unit_debug(u, "cgroup is empty"); |
a911bb9a LP |
2822 | |
2823 | switch (s->state) { | |
2824 | ||
2825 | /* Waiting for SIGCHLD is usually more interesting, | |
2826 | * because it includes return codes/signals. Which is | |
2827 | * why we ignore the cgroup events for most cases, | |
2828 | * except when we don't know pid which to expect the | |
2829 | * SIGCHLD for. */ | |
2830 | ||
2831 | case SERVICE_START: | |
71e529fc | 2832 | if (s->type == SERVICE_NOTIFY) { |
3d474ef7 | 2833 | /* No chance of getting a ready notification anymore */ |
c3fda31d | 2834 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
71e529fc JW |
2835 | break; |
2836 | } | |
2837 | ||
2838 | /* Fall through */ | |
2839 | ||
2840 | case SERVICE_START_POST: | |
2841 | if (s->pid_file_pathspec) { | |
3d474ef7 | 2842 | /* Give up hoping for the daemon to write its PID file */ |
f2341e0a | 2843 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 2844 | |
a911bb9a LP |
2845 | service_unwatch_pid_file(s); |
2846 | if (s->state == SERVICE_START) | |
c3fda31d | 2847 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a | 2848 | else |
c35755fb | 2849 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a LP |
2850 | } |
2851 | break; | |
2852 | ||
2853 | case SERVICE_RUNNING: | |
2854 | /* service_enter_running() will figure out what to do */ | |
2855 | service_enter_running(s, SERVICE_SUCCESS); | |
2856 | break; | |
2857 | ||
db2cb23b | 2858 | case SERVICE_STOP_SIGABRT: |
a911bb9a LP |
2859 | case SERVICE_STOP_SIGTERM: |
2860 | case SERVICE_STOP_SIGKILL: | |
2861 | ||
2862 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2863 | service_enter_stop_post(s, SERVICE_SUCCESS); | |
2864 | ||
2865 | break; | |
2866 | ||
2867 | case SERVICE_STOP_POST: | |
2868 | case SERVICE_FINAL_SIGTERM: | |
2869 | case SERVICE_FINAL_SIGKILL: | |
2870 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2871 | service_enter_dead(s, SERVICE_SUCCESS, true); | |
2872 | ||
2873 | break; | |
2874 | ||
2875 | default: | |
2876 | ; | |
2877 | } | |
2878 | } | |
2879 | ||
87f0e418 LP |
2880 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2881 | Service *s = SERVICE(u); | |
f42806df | 2882 | ServiceResult f; |
5cb5a6ff LP |
2883 | |
2884 | assert(s); | |
034c6ed7 LP |
2885 | assert(pid >= 0); |
2886 | ||
1f0958f6 | 2887 | if (is_clean_exit(code, status, s->type == SERVICE_ONESHOT ? EXIT_CLEAN_COMMAND : EXIT_CLEAN_DAEMON, &s->success_status)) |
f42806df LP |
2888 | f = SERVICE_SUCCESS; |
2889 | else if (code == CLD_EXITED) | |
2890 | f = SERVICE_FAILURE_EXIT_CODE; | |
2891 | else if (code == CLD_KILLED) | |
2892 | f = SERVICE_FAILURE_SIGNAL; | |
2893 | else if (code == CLD_DUMPED) | |
2894 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2895 | else |
cfc4eb4c | 2896 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2897 | |
2898 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2899 | /* Forking services may occasionally move to a new PID. |
2900 | * As long as they update the PID file before exiting the old | |
2901 | * PID, they're fine. */ | |
5375410b | 2902 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2903 | return; |
034c6ed7 | 2904 | |
034c6ed7 | 2905 | s->main_pid = 0; |
6ea832a2 | 2906 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2907 | |
867b3b7d | 2908 | if (s->main_command) { |
fbeefb45 LP |
2909 | /* If this is not a forking service than the |
2910 | * main process got started and hence we copy | |
2911 | * the exit status so that it is recorded both | |
2912 | * as main and as control process exit | |
2913 | * status */ | |
2914 | ||
867b3b7d | 2915 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2916 | |
3ed0cd26 | 2917 | if (s->main_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 2918 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2919 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2920 | ||
2921 | /* If this is a forked process, then we should | |
2922 | * ignore the return value if this was | |
2923 | * configured for the starter process */ | |
2924 | ||
3ed0cd26 | 2925 | if (s->exec_command[SERVICE_EXEC_START]->flags & EXEC_COMMAND_IGNORE_FAILURE) |
fbeefb45 | 2926 | f = SERVICE_SUCCESS; |
034c6ed7 LP |
2927 | } |
2928 | ||
5368222d LP |
2929 | /* When this is a successful exit, let's log about the exit code on DEBUG level. If this is a failure |
2930 | * and the process exited on its own via exit(), then let's make this a NOTICE, under the assumption | |
2931 | * that the service already logged the reason at a higher log level on its own. However, if the service | |
2932 | * died due to a signal, then it most likely didn't say anything about any reason, hence let's raise | |
2933 | * our log level to WARNING then. */ | |
2934 | ||
2935 | log_struct(f == SERVICE_SUCCESS ? LOG_DEBUG : | |
2936 | (code == CLD_EXITED ? LOG_NOTICE : LOG_WARNING), | |
f2341e0a LP |
2937 | LOG_UNIT_MESSAGE(u, "Main process exited, code=%s, status=%i/%s", |
2938 | sigchld_code_to_string(code), status, | |
e2cc6eca LP |
2939 | strna(code == CLD_EXITED |
2940 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2941 | : signal_to_string(status))), | |
f2341e0a LP |
2942 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2943 | "EXIT_STATUS=%i", status, | |
ba360bb0 | 2944 | LOG_UNIT_ID(u), |
f2341e0a | 2945 | NULL); |
f42806df | 2946 | |
a0fef983 | 2947 | if (s->result == SERVICE_SUCCESS) |
f42806df | 2948 | s->result = f; |
034c6ed7 | 2949 | |
867b3b7d LP |
2950 | if (s->main_command && |
2951 | s->main_command->command_next && | |
b58aeb70 | 2952 | s->type == SERVICE_ONESHOT && |
f42806df | 2953 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2954 | |
34e9ba66 LP |
2955 | /* There is another command to * |
2956 | * execute, so let's do that. */ | |
034c6ed7 | 2957 | |
f2341e0a | 2958 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 2959 | service_run_next_main(s); |
034c6ed7 | 2960 | |
34e9ba66 LP |
2961 | } else { |
2962 | ||
2963 | /* The service exited, so the service is officially | |
2964 | * gone. */ | |
867b3b7d | 2965 | s->main_command = NULL; |
34e9ba66 LP |
2966 | |
2967 | switch (s->state) { | |
2968 | ||
2969 | case SERVICE_START_POST: | |
2970 | case SERVICE_RELOAD: | |
2971 | case SERVICE_STOP: | |
2972 | /* Need to wait until the operation is | |
2973 | * done */ | |
c4653a4d | 2974 | break; |
7d55e835 | 2975 | |
34e9ba66 LP |
2976 | case SERVICE_START: |
2977 | if (s->type == SERVICE_ONESHOT) { | |
2978 | /* This was our main goal, so let's go on */ | |
f42806df | 2979 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2980 | service_enter_start_post(s); |
2981 | else | |
c3fda31d | 2982 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
34e9ba66 | 2983 | break; |
3d474ef7 JW |
2984 | } else if (s->type == SERVICE_NOTIFY) { |
2985 | /* Only enter running through a notification, so that the | |
2986 | * SERVICE_START state signifies that no ready notification | |
2987 | * has been received */ | |
2988 | if (f != SERVICE_SUCCESS) | |
c3fda31d | 2989 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3d474ef7 JW |
2990 | else if (!s->remain_after_exit) |
2991 | /* The service has never been active */ | |
c3fda31d | 2992 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3d474ef7 | 2993 | break; |
34e9ba66 | 2994 | } |
034c6ed7 | 2995 | |
bfba3256 LP |
2996 | /* Fall through */ |
2997 | ||
34e9ba66 | 2998 | case SERVICE_RUNNING: |
f42806df | 2999 | service_enter_running(s, f); |
34e9ba66 | 3000 | break; |
034c6ed7 | 3001 | |
db2cb23b | 3002 | case SERVICE_STOP_SIGABRT: |
34e9ba66 LP |
3003 | case SERVICE_STOP_SIGTERM: |
3004 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 3005 | |
34e9ba66 | 3006 | if (!control_pid_good(s)) |
f42806df | 3007 | service_enter_stop_post(s, f); |
5cb5a6ff | 3008 | |
34e9ba66 LP |
3009 | /* If there is still a control process, wait for that first */ |
3010 | break; | |
3011 | ||
bf108e55 LP |
3012 | case SERVICE_STOP_POST: |
3013 | case SERVICE_FINAL_SIGTERM: | |
3014 | case SERVICE_FINAL_SIGKILL: | |
3015 | ||
3016 | if (!control_pid_good(s)) | |
3017 | service_enter_dead(s, f, true); | |
3018 | break; | |
3019 | ||
34e9ba66 LP |
3020 | default: |
3021 | assert_not_reached("Uh, main process died at wrong time."); | |
3022 | } | |
034c6ed7 | 3023 | } |
5cb5a6ff | 3024 | |
034c6ed7 | 3025 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
3026 | s->control_pid = 0; |
3027 | ||
b708e7ce | 3028 | if (s->control_command) { |
8bb2d17d | 3029 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 3030 | |
3ed0cd26 | 3031 | if (s->control_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3032 | f = SERVICE_SUCCESS; |
b708e7ce LP |
3033 | } |
3034 | ||
f2341e0a LP |
3035 | log_unit_full(u, f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0, |
3036 | "Control process exited, code=%s status=%i", | |
3037 | sigchld_code_to_string(code), status); | |
f42806df | 3038 | |
a0fef983 | 3039 | if (s->result == SERVICE_SUCCESS) |
f42806df | 3040 | s->result = f; |
034c6ed7 | 3041 | |
88f3e0c9 LP |
3042 | /* Immediately get rid of the cgroup, so that the |
3043 | * kernel doesn't delay the cgroup empty messages for | |
3044 | * the service cgroup any longer than necessary */ | |
4ad49000 | 3045 | service_kill_control_processes(s); |
88f3e0c9 | 3046 | |
34e9ba66 LP |
3047 | if (s->control_command && |
3048 | s->control_command->command_next && | |
f42806df | 3049 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3050 | |
3051 | /* There is another command to * | |
3052 | * execute, so let's do that. */ | |
3053 | ||
f2341e0a | 3054 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 3055 | service_run_next_control(s); |
034c6ed7 | 3056 | |
80876c20 | 3057 | } else { |
034c6ed7 LP |
3058 | /* No further commands for this step, so let's |
3059 | * figure out what to do next */ | |
3060 | ||
a16e1123 LP |
3061 | s->control_command = NULL; |
3062 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3063 | ||
f2341e0a | 3064 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 3065 | |
034c6ed7 LP |
3066 | switch (s->state) { |
3067 | ||
3068 | case SERVICE_START_PRE: | |
f42806df | 3069 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3070 | service_enter_start(s); |
3071 | else | |
c3fda31d | 3072 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3073 | break; |
3074 | ||
3075 | case SERVICE_START: | |
bfba3256 LP |
3076 | if (s->type != SERVICE_FORKING) |
3077 | /* Maybe spurious event due to a reload that changed the type? */ | |
3078 | break; | |
034c6ed7 | 3079 | |
f42806df | 3080 | if (f != SERVICE_SUCCESS) { |
c3fda31d | 3081 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3a111838 MS |
3082 | break; |
3083 | } | |
034c6ed7 | 3084 | |
3a111838 | 3085 | if (s->pid_file) { |
f42806df LP |
3086 | bool has_start_post; |
3087 | int r; | |
3088 | ||
3a111838 MS |
3089 | /* Let's try to load the pid file here if we can. |
3090 | * The PID file might actually be created by a START_POST | |
3091 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
3092 | |
3093 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
3094 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
3095 | if (!has_start_post && r < 0) { |
3096 | r = service_demand_pid_file(s); | |
3097 | if (r < 0 || !cgroup_good(s)) | |
c3fda31d | 3098 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3a111838 MS |
3099 | break; |
3100 | } | |
034c6ed7 | 3101 | } else |
783e05d6 | 3102 | service_search_main_pid(s); |
034c6ed7 | 3103 | |
3a111838 | 3104 | service_enter_start_post(s); |
034c6ed7 LP |
3105 | break; |
3106 | ||
3107 | case SERVICE_START_POST: | |
f42806df | 3108 | if (f != SERVICE_SUCCESS) { |
ce359e98 | 3109 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
2096e009 | 3110 | break; |
034c6ed7 LP |
3111 | } |
3112 | ||
2096e009 | 3113 | if (s->pid_file) { |
f42806df LP |
3114 | int r; |
3115 | ||
3116 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3117 | if (r < 0) { |
3118 | r = service_demand_pid_file(s); | |
3119 | if (r < 0 || !cgroup_good(s)) | |
c35755fb | 3120 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
2096e009 MS |
3121 | break; |
3122 | } | |
3123 | } else | |
783e05d6 | 3124 | service_search_main_pid(s); |
2096e009 | 3125 | |
f42806df | 3126 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3127 | break; |
034c6ed7 LP |
3128 | |
3129 | case SERVICE_RELOAD: | |
7236ce6e ZJS |
3130 | if (f == SERVICE_SUCCESS) |
3131 | if (service_load_pid_file(s, true) < 0) | |
3132 | service_search_main_pid(s); | |
3185a36b | 3133 | |
f42806df LP |
3134 | s->reload_result = f; |
3135 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3136 | break; |
3137 | ||
3138 | case SERVICE_STOP: | |
f42806df | 3139 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3140 | break; |
3141 | ||
db2cb23b | 3142 | case SERVICE_STOP_SIGABRT: |
034c6ed7 LP |
3143 | case SERVICE_STOP_SIGTERM: |
3144 | case SERVICE_STOP_SIGKILL: | |
3145 | if (main_pid_good(s) <= 0) | |
f42806df | 3146 | service_enter_stop_post(s, f); |
034c6ed7 LP |
3147 | |
3148 | /* If there is still a service | |
3149 | * process around, wait until | |
3150 | * that one quit, too */ | |
3151 | break; | |
3152 | ||
3153 | case SERVICE_STOP_POST: | |
3154 | case SERVICE_FINAL_SIGTERM: | |
3155 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
3156 | if (main_pid_good(s) <= 0) |
3157 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
3158 | break; |
3159 | ||
3160 | default: | |
3161 | assert_not_reached("Uh, control process died at wrong time."); | |
3162 | } | |
3163 | } | |
8c47c732 | 3164 | } |
c4e2ceae LP |
3165 | |
3166 | /* Notify clients about changed exit status */ | |
3167 | unit_add_to_dbus_queue(u); | |
a911bb9a LP |
3168 | |
3169 | /* We got one SIGCHLD for the service, let's watch all | |
3170 | * processes that are now running of the service, and watch | |
3171 | * that. Among the PIDs we then watch will be children | |
3172 | * reassigned to us, which hopefully allows us to identify | |
3173 | * when all children are gone */ | |
3174 | unit_tidy_watch_pids(u, s->main_pid, s->control_pid); | |
3175 | unit_watch_all_pids(u); | |
3176 | ||
bbc85a16 EV |
3177 | /* If the PID set is empty now, then let's finish this off |
3178 | (On unified we use proper notifications) */ | |
c22800e4 | 3179 | if (cg_unified_controller(SYSTEMD_CGROUP_CONTROLLER) == 0 && set_isempty(u->pids)) |
a911bb9a | 3180 | service_notify_cgroup_empty_event(u); |
034c6ed7 LP |
3181 | } |
3182 | ||
718db961 LP |
3183 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
3184 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
3185 | |
3186 | assert(s); | |
718db961 | 3187 | assert(source == s->timer_event_source); |
034c6ed7 LP |
3188 | |
3189 | switch (s->state) { | |
3190 | ||
3191 | case SERVICE_START_PRE: | |
3192 | case SERVICE_START: | |
f2341e0a | 3193 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", s->state == SERVICE_START ? "Start" : "Start-pre"); |
c3fda31d | 3194 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
3195 | break; |
3196 | ||
034c6ed7 | 3197 | case SERVICE_START_POST: |
f2341e0a | 3198 | log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping."); |
ce359e98 | 3199 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3200 | break; |
3201 | ||
36c16a7c LP |
3202 | case SERVICE_RUNNING: |
3203 | log_unit_warning(UNIT(s), "Service reached runtime time limit. Stopping."); | |
3204 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); | |
3205 | break; | |
3206 | ||
e2f3b44c | 3207 | case SERVICE_RELOAD: |
089b64d5 | 3208 | log_unit_warning(UNIT(s), "Reload operation timed out. Killing reload process."); |
478b6192 | 3209 | service_kill_control_processes(s); |
f42806df LP |
3210 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3211 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3212 | break; |
3213 | ||
034c6ed7 | 3214 | case SERVICE_STOP: |
f2341e0a | 3215 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
f42806df | 3216 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3217 | break; |
3218 | ||
db2cb23b | 3219 | case SERVICE_STOP_SIGABRT: |
f2341e0a | 3220 | log_unit_warning(UNIT(s), "State 'stop-sigabrt' timed out. Terminating."); |
2ab2ab7b | 3221 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
db2cb23b UTL |
3222 | break; |
3223 | ||
034c6ed7 | 3224 | case SERVICE_STOP_SIGTERM: |
4819ff03 | 3225 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3226 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 3227 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3228 | } else { |
f2341e0a | 3229 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 3230 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3231 | } |
3232 | ||
034c6ed7 LP |
3233 | break; |
3234 | ||
3235 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3236 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3237 | * Must be something we cannot kill, so let's just be |
3238 | * weirded out and continue */ | |
3239 | ||
f2341e0a | 3240 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 3241 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3242 | break; |
3243 | ||
3244 | case SERVICE_STOP_POST: | |
f2341e0a | 3245 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); |
f42806df | 3246 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3247 | break; |
3248 | ||
3249 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 3250 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3251 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing."); |
f42806df | 3252 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3253 | } else { |
f2341e0a | 3254 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); |
f42806df | 3255 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3256 | } |
3257 | ||
034c6ed7 LP |
3258 | break; |
3259 | ||
3260 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 3261 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 3262 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3263 | break; |
3264 | ||
3265 | case SERVICE_AUTO_RESTART: | |
f2341e0a | 3266 | log_unit_info(UNIT(s), |
ef417cfd | 3267 | s->restart_usec > 0 ? |
f2341e0a LP |
3268 | "Service hold-off time over, scheduling restart." : |
3269 | "Service has no hold-off time, scheduling restart."); | |
034c6ed7 LP |
3270 | service_enter_restart(s); |
3271 | break; | |
3272 | ||
3273 | default: | |
3274 | assert_not_reached("Timeout at wrong time."); | |
3275 | } | |
718db961 LP |
3276 | |
3277 | return 0; | |
3278 | } | |
3279 | ||
3280 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
3281 | Service *s = SERVICE(userdata); | |
a7850c7d | 3282 | char t[FORMAT_TIMESPAN_MAX]; |
2787d83c | 3283 | usec_t watchdog_usec; |
718db961 LP |
3284 | |
3285 | assert(s); | |
3286 | assert(source == s->watchdog_event_source); | |
3287 | ||
2787d83c M |
3288 | watchdog_usec = service_get_watchdog_usec(s); |
3289 | ||
f2341e0a | 3290 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", |
2787d83c | 3291 | format_timespan(t, sizeof(t), watchdog_usec, 1)); |
8bb2d17d | 3292 | |
db2cb23b | 3293 | service_enter_signal(s, SERVICE_STOP_SIGABRT, SERVICE_FAILURE_WATCHDOG); |
842129f5 | 3294 | |
718db961 | 3295 | return 0; |
5cb5a6ff LP |
3296 | } |
3297 | ||
a354329f | 3298 | static void service_notify_message(Unit *u, pid_t pid, char **tags, FDSet *fds) { |
8c47c732 | 3299 | Service *s = SERVICE(u); |
308d72dc | 3300 | _cleanup_free_ char *cc = NULL; |
30b5275a | 3301 | bool notify_dbus = false; |
308d72dc | 3302 | const char *e; |
8c47c732 LP |
3303 | |
3304 | assert(u); | |
3305 | ||
308d72dc | 3306 | cc = strv_join(tags, ", "); |
da13d4d2 | 3307 | |
c952c6ec | 3308 | if (s->notify_access == NOTIFY_NONE) { |
f2341e0a | 3309 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
c952c6ec | 3310 | return; |
34959677 | 3311 | } else if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { |
336c6e46 | 3312 | if (s->main_pid != 0) |
f2341e0a | 3313 | 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 | 3314 | else |
6375bd20 JW |
3315 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for main PID which is currently not known", pid); |
3316 | return; | |
3317 | } else if (s->notify_access == NOTIFY_EXEC && pid != s->main_pid && pid != s->control_pid) { | |
3318 | if (s->main_pid != 0 && s->control_pid != 0) | |
3319 | 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, | |
3320 | pid, s->main_pid, s->control_pid); | |
3321 | else if (s->main_pid != 0) | |
3322 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT, pid, s->main_pid); | |
3323 | else if (s->control_pid != 0) | |
3324 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for control PID "PID_FMT, pid, s->control_pid); | |
3325 | else | |
3326 | 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 | 3327 | return; |
34959677 TG |
3328 | } else |
3329 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", pid, isempty(cc) ? "n/a" : cc); | |
c952c6ec | 3330 | |
8c47c732 | 3331 | /* Interpret MAINPID= */ |
28849dba | 3332 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 3333 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
28849dba | 3334 | if (parse_pid(e, &pid) < 0) |
f2341e0a | 3335 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message: %s", e); |
3c9512c7 JW |
3336 | else if (pid == s->control_pid) |
3337 | log_unit_warning(u, "A control process cannot also be the main process"); | |
df0ff127 | 3338 | else if (pid == getpid_cached() || pid == 1) |
6939ce64 | 3339 | log_unit_warning(u, "Service manager can't be main process, ignoring sd_notify() MAINPID= field"); |
8c47c732 | 3340 | else { |
5925dd3c | 3341 | service_set_main_pid(s, pid); |
7400b9d2 | 3342 | unit_watch_pid(UNIT(s), pid); |
30b5275a | 3343 | notify_dbus = true; |
8c47c732 LP |
3344 | } |
3345 | } | |
3346 | ||
308d72dc LP |
3347 | /* Interpret RELOADING= */ |
3348 | if (strv_find(tags, "RELOADING=1")) { | |
3349 | ||
308d72dc LP |
3350 | s->notify_state = NOTIFY_RELOADING; |
3351 | ||
3352 | if (s->state == SERVICE_RUNNING) | |
3353 | service_enter_reload_by_notify(s); | |
3354 | ||
3355 | notify_dbus = true; | |
3356 | } | |
3357 | ||
8c47c732 | 3358 | /* Interpret READY= */ |
308d72dc LP |
3359 | if (strv_find(tags, "READY=1")) { |
3360 | ||
308d72dc LP |
3361 | s->notify_state = NOTIFY_READY; |
3362 | ||
3363 | /* Type=notify services inform us about completed | |
3364 | * initialization with READY=1 */ | |
3365 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
3366 | service_enter_start_post(s); | |
3367 | ||
3368 | /* Sending READY=1 while we are reloading informs us | |
3369 | * that the reloading is complete */ | |
3370 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
3371 | service_enter_running(s, SERVICE_SUCCESS); | |
3372 | ||
3373 | notify_dbus = true; | |
3374 | } | |
3375 | ||
3376 | /* Interpret STOPPING= */ | |
3377 | if (strv_find(tags, "STOPPING=1")) { | |
3378 | ||
308d72dc LP |
3379 | s->notify_state = NOTIFY_STOPPING; |
3380 | ||
3381 | if (s->state == SERVICE_RUNNING) | |
3382 | service_enter_stop_by_notify(s); | |
3383 | ||
30b5275a | 3384 | notify_dbus = true; |
8c47c732 LP |
3385 | } |
3386 | ||
3387 | /* Interpret STATUS= */ | |
28849dba | 3388 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 3389 | if (e) { |
28849dba | 3390 | _cleanup_free_ char *t = NULL; |
8c47c732 | 3391 | |
28849dba LP |
3392 | if (!isempty(e)) { |
3393 | if (!utf8_is_valid(e)) | |
f2341e0a | 3394 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean."); |
28849dba | 3395 | else { |
28849dba LP |
3396 | t = strdup(e); |
3397 | if (!t) | |
3398 | log_oom(); | |
3a2776bc | 3399 | } |
28849dba | 3400 | } |
8c47c732 | 3401 | |
30b5275a | 3402 | if (!streq_ptr(s->status_text, t)) { |
28849dba | 3403 | |
3b319885 | 3404 | free_and_replace(s->status_text, t); |
28849dba | 3405 | |
30b5275a | 3406 | notify_dbus = true; |
28849dba | 3407 | } |
8c47c732 | 3408 | } |
842129f5 | 3409 | |
4774e357 | 3410 | /* Interpret ERRNO= */ |
28849dba | 3411 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
3412 | if (e) { |
3413 | int status_errno; | |
3414 | ||
28849dba | 3415 | if (safe_atoi(e, &status_errno) < 0 || status_errno < 0) |
f2341e0a | 3416 | log_unit_warning(u, "Failed to parse ERRNO= field in notification message: %s", e); |
4774e357 | 3417 | else { |
4774e357 MAA |
3418 | if (s->status_errno != status_errno) { |
3419 | s->status_errno = status_errno; | |
3420 | notify_dbus = true; | |
3421 | } | |
3422 | } | |
3423 | } | |
3424 | ||
6f285378 | 3425 | /* Interpret WATCHDOG= */ |
1f6b4113 | 3426 | if (strv_find(tags, "WATCHDOG=1")) |
842129f5 | 3427 | service_reset_watchdog(s); |
c4e2ceae | 3428 | |
8dd4c05b LP |
3429 | if (strv_find(tags, "FDSTORE=1")) { |
3430 | const char *name; | |
3431 | ||
3432 | name = strv_find_startswith(tags, "FDNAME="); | |
3433 | if (name && !fdname_is_valid(name)) { | |
3434 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
3435 | name = NULL; | |
3436 | } | |
3437 | ||
3438 | service_add_fd_store_set(s, fds, name); | |
3439 | } | |
a354329f | 3440 | |
2787d83c M |
3441 | e = strv_find_startswith(tags, "WATCHDOG_USEC="); |
3442 | if (e) { | |
3443 | usec_t watchdog_override_usec; | |
3444 | if (safe_atou64(e, &watchdog_override_usec) < 0) | |
3445 | log_unit_warning(u, "Failed to parse WATCHDOG_USEC=%s", e); | |
3446 | else | |
3447 | service_reset_watchdog_timeout(s, watchdog_override_usec); | |
3448 | } | |
3449 | ||
c4e2ceae | 3450 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
3451 | if (notify_dbus) |
3452 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
3453 | } |
3454 | ||
7a7821c8 | 3455 | static int service_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 3456 | Service *s = SERVICE(u); |
7a7821c8 | 3457 | uint64_t t; |
68db7a3b ZJS |
3458 | int r; |
3459 | ||
3460 | if (!s->timer_event_source) | |
3461 | return 0; | |
3462 | ||
7a7821c8 | 3463 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
3464 | if (r < 0) |
3465 | return r; | |
7a7821c8 LP |
3466 | if (t == USEC_INFINITY) |
3467 | return 0; | |
68db7a3b | 3468 | |
7a7821c8 | 3469 | *timeout = t; |
68db7a3b ZJS |
3470 | return 1; |
3471 | } | |
3472 | ||
05e343b7 LP |
3473 | static void service_bus_name_owner_change( |
3474 | Unit *u, | |
3475 | const char *name, | |
3476 | const char *old_owner, | |
3477 | const char *new_owner) { | |
3478 | ||
3479 | Service *s = SERVICE(u); | |
718db961 | 3480 | int r; |
05e343b7 LP |
3481 | |
3482 | assert(s); | |
3483 | assert(name); | |
3484 | ||
3485 | assert(streq(s->bus_name, name)); | |
3486 | assert(old_owner || new_owner); | |
3487 | ||
3488 | if (old_owner && new_owner) | |
f2341e0a | 3489 | log_unit_debug(u, "D-Bus name %s changed owner from %s to %s", name, old_owner, new_owner); |
05e343b7 | 3490 | else if (old_owner) |
f2341e0a | 3491 | log_unit_debug(u, "D-Bus name %s no longer registered by %s", name, old_owner); |
05e343b7 | 3492 | else |
f2341e0a | 3493 | log_unit_debug(u, "D-Bus name %s now registered by %s", name, new_owner); |
05e343b7 LP |
3494 | |
3495 | s->bus_name_good = !!new_owner; | |
3496 | ||
d8ccf5fd DM |
3497 | /* Track the current owner, so we can reconstruct changes after a daemon reload */ |
3498 | r = free_and_strdup(&s->bus_name_owner, new_owner); | |
3499 | if (r < 0) { | |
3500 | log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner); | |
3501 | return; | |
3502 | } | |
3503 | ||
05e343b7 LP |
3504 | if (s->type == SERVICE_DBUS) { |
3505 | ||
3506 | /* service_enter_running() will figure out what to | |
3507 | * do */ | |
3508 | if (s->state == SERVICE_RUNNING) | |
f42806df | 3509 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
3510 | else if (s->state == SERVICE_START && new_owner) |
3511 | service_enter_start_post(s); | |
3512 | ||
3513 | } else if (new_owner && | |
3514 | s->main_pid <= 0 && | |
3515 | (s->state == SERVICE_START || | |
3516 | s->state == SERVICE_START_POST || | |
3517 | s->state == SERVICE_RUNNING || | |
3518 | s->state == SERVICE_RELOAD)) { | |
3519 | ||
4afd3348 | 3520 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
718db961 | 3521 | pid_t pid; |
05e343b7 | 3522 | |
718db961 | 3523 | /* Try to acquire PID from bus service */ |
05e343b7 | 3524 | |
056f95d0 | 3525 | r = sd_bus_get_name_creds(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
3526 | if (r >= 0) |
3527 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 | 3528 | if (r >= 0) { |
7c102d60 | 3529 | log_unit_debug(u, "D-Bus name %s is now owned by process " PID_FMT, name, pid); |
05e343b7 | 3530 | |
718db961 LP |
3531 | service_set_main_pid(s, pid); |
3532 | unit_watch_pid(UNIT(s), pid); | |
3533 | } | |
7400b9d2 | 3534 | } |
05e343b7 LP |
3535 | } |
3536 | ||
16115b0a | 3537 | int service_set_socket_fd(Service *s, int fd, Socket *sock, bool selinux_context_net) { |
79a98c60 LP |
3538 | _cleanup_free_ char *peer = NULL; |
3539 | int r; | |
57020a3a | 3540 | |
4f2d528d LP |
3541 | assert(s); |
3542 | assert(fd >= 0); | |
3543 | ||
7f2fbbff LP |
3544 | /* This is called by the socket code when instantiating a new service for a stream socket and the socket needs |
3545 | * to be configured. We take ownership of the passed fd on success. */ | |
4f2d528d | 3546 | |
1124fe6f | 3547 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
3548 | return -EINVAL; |
3549 | ||
3550 | if (s->socket_fd >= 0) | |
3551 | return -EBUSY; | |
3552 | ||
3553 | if (s->state != SERVICE_DEAD) | |
3554 | return -EAGAIN; | |
3555 | ||
366b7db4 | 3556 | if (getpeername_pretty(fd, true, &peer) >= 0) { |
79a98c60 LP |
3557 | |
3558 | if (UNIT(s)->description) { | |
3559 | _cleanup_free_ char *a; | |
3560 | ||
605405c6 | 3561 | a = strjoin(UNIT(s)->description, " (", peer, ")"); |
79a98c60 LP |
3562 | if (!a) |
3563 | return -ENOMEM; | |
3564 | ||
3565 | r = unit_set_description(UNIT(s), a); | |
3566 | } else | |
3567 | r = unit_set_description(UNIT(s), peer); | |
3568 | ||
3569 | if (r < 0) | |
3570 | return r; | |
3571 | } | |
3572 | ||
7f2fbbff LP |
3573 | r = unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); |
3574 | if (r < 0) | |
3575 | return r; | |
3576 | ||
4f2d528d | 3577 | s->socket_fd = fd; |
16115b0a | 3578 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 3579 | |
57020a3a | 3580 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
7f2fbbff | 3581 | return 0; |
4f2d528d LP |
3582 | } |
3583 | ||
fdf20a31 | 3584 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
3585 | Service *s = SERVICE(u); |
3586 | ||
3587 | assert(s); | |
3588 | ||
fdf20a31 | 3589 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
3590 | service_set_state(s, SERVICE_DEAD); |
3591 | ||
f42806df LP |
3592 | s->result = SERVICE_SUCCESS; |
3593 | s->reload_result = SERVICE_SUCCESS; | |
7a0019d3 LP |
3594 | s->n_restarts = 0; |
3595 | s->flush_n_restarts = false; | |
5632e374 LP |
3596 | } |
3597 | ||
718db961 | 3598 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 3599 | Service *s = SERVICE(u); |
41efeaec | 3600 | |
814cc562 | 3601 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
3602 | } |
3603 | ||
291d565a LP |
3604 | static int service_main_pid(Unit *u) { |
3605 | Service *s = SERVICE(u); | |
3606 | ||
3607 | assert(s); | |
3608 | ||
3609 | return s->main_pid; | |
3610 | } | |
3611 | ||
3612 | static int service_control_pid(Unit *u) { | |
3613 | Service *s = SERVICE(u); | |
3614 | ||
3615 | assert(s); | |
3616 | ||
3617 | return s->control_pid; | |
3618 | } | |
3619 | ||
94f04347 | 3620 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
525ee6f4 LP |
3621 | [SERVICE_RESTART_NO] = "no", |
3622 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 3623 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 3624 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 3625 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 3626 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 3627 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
3628 | }; |
3629 | ||
3630 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
3631 | ||
3632 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 3633 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 3634 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 3635 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 3636 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
3637 | [SERVICE_NOTIFY] = "notify", |
3638 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
3639 | }; |
3640 | ||
3641 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
3642 | ||
e537352b | 3643 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
3644 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
3645 | [SERVICE_EXEC_START] = "ExecStart", | |
3646 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
3647 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
3648 | [SERVICE_EXEC_STOP] = "ExecStop", | |
3649 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
3650 | }; | |
3651 | ||
3652 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
3653 | ||
308d72dc LP |
3654 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
3655 | [NOTIFY_UNKNOWN] = "unknown", | |
3656 | [NOTIFY_READY] = "ready", | |
3657 | [NOTIFY_RELOADING] = "reloading", | |
3658 | [NOTIFY_STOPPING] = "stopping", | |
3659 | }; | |
3660 | ||
3661 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
3662 | ||
f42806df LP |
3663 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
3664 | [SERVICE_SUCCESS] = "success", | |
3665 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
c35755fb | 3666 | [SERVICE_FAILURE_PROTOCOL] = "protocol", |
f42806df LP |
3667 | [SERVICE_FAILURE_TIMEOUT] = "timeout", |
3668 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
3669 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 3670 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a | 3671 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
07299350 | 3672 | [SERVICE_FAILURE_START_LIMIT_HIT] = "start-limit-hit", |
f42806df LP |
3673 | }; |
3674 | ||
3675 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
3676 | ||
87f0e418 | 3677 | const UnitVTable service_vtable = { |
7d17cfbc | 3678 | .object_size = sizeof(Service), |
718db961 LP |
3679 | .exec_context_offset = offsetof(Service, exec_context), |
3680 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
3681 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 3682 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
29206d46 | 3683 | .dynamic_creds_offset = offsetof(Service, dynamic_creds), |
3ef63c31 | 3684 | |
f975e971 LP |
3685 | .sections = |
3686 | "Unit\0" | |
3687 | "Service\0" | |
3688 | "Install\0", | |
4ad49000 | 3689 | .private_section = "Service", |
71645aca | 3690 | |
034c6ed7 LP |
3691 | .init = service_init, |
3692 | .done = service_done, | |
a16e1123 | 3693 | .load = service_load, |
a354329f | 3694 | .release_resources = service_release_resources, |
a16e1123 LP |
3695 | |
3696 | .coldplug = service_coldplug, | |
034c6ed7 | 3697 | |
5cb5a6ff LP |
3698 | .dump = service_dump, |
3699 | ||
3700 | .start = service_start, | |
3701 | .stop = service_stop, | |
3702 | .reload = service_reload, | |
3703 | ||
034c6ed7 LP |
3704 | .can_reload = service_can_reload, |
3705 | ||
8a0867d6 LP |
3706 | .kill = service_kill, |
3707 | ||
a16e1123 LP |
3708 | .serialize = service_serialize, |
3709 | .deserialize_item = service_deserialize_item, | |
3710 | ||
5cb5a6ff | 3711 | .active_state = service_active_state, |
10a94420 | 3712 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 3713 | |
701cc384 | 3714 | .check_gc = service_check_gc, |
701cc384 | 3715 | |
034c6ed7 | 3716 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 3717 | |
fdf20a31 | 3718 | .reset_failed = service_reset_failed, |
5632e374 | 3719 | |
4ad49000 | 3720 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 3721 | .notify_message = service_notify_message, |
8e274523 | 3722 | |
291d565a LP |
3723 | .main_pid = service_main_pid, |
3724 | .control_pid = service_control_pid, | |
3725 | ||
05e343b7 | 3726 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 3727 | |
718db961 | 3728 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
3729 | .bus_set_property = bus_service_set_property, |
3730 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 3731 | |
68db7a3b | 3732 | .get_timeout = service_get_timeout, |
718db961 LP |
3733 | .can_transient = true, |
3734 | ||
c6918296 MS |
3735 | .status_message_formats = { |
3736 | .starting_stopping = { | |
3737 | [0] = "Starting %s...", | |
3738 | [1] = "Stopping %s...", | |
3739 | }, | |
3740 | .finished_start_job = { | |
3741 | [JOB_DONE] = "Started %s.", | |
3742 | [JOB_FAILED] = "Failed to start %s.", | |
c6918296 MS |
3743 | }, |
3744 | .finished_stop_job = { | |
3745 | [JOB_DONE] = "Stopped %s.", | |
3746 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 MS |
3747 | }, |
3748 | }, | |
5cb5a6ff | 3749 | }; |