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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); | |
18f573aa LP |
806 | |
807 | cgroup_context_dump(&s->cgroup_context, f, prefix); | |
5cb5a6ff LP |
808 | } |
809 | ||
c5419d42 | 810 | static int service_load_pid_file(Service *s, bool may_warn) { |
7fd1b19b | 811 | _cleanup_free_ char *k = NULL; |
034c6ed7 | 812 | int r; |
5925dd3c | 813 | pid_t pid; |
034c6ed7 LP |
814 | |
815 | assert(s); | |
816 | ||
034c6ed7 | 817 | if (!s->pid_file) |
13230d5d | 818 | return -ENOENT; |
034c6ed7 | 819 | |
117dcc57 ZJS |
820 | r = read_one_line_file(s->pid_file, &k); |
821 | if (r < 0) { | |
c5419d42 | 822 | if (may_warn) |
f2341e0a | 823 | 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 | 824 | return r; |
5375410b | 825 | } |
034c6ed7 | 826 | |
5925dd3c | 827 | r = parse_pid(k, &pid); |
bc41f93e ZJS |
828 | if (r < 0) { |
829 | if (may_warn) | |
f2341e0a | 830 | log_unit_info_errno(UNIT(s), r, "Failed to read PID from file %s: %m", s->pid_file); |
5925dd3c | 831 | return r; |
bc41f93e | 832 | } |
406eaf93 | 833 | |
9f5650ae | 834 | if (!pid_is_alive(pid)) { |
c5419d42 | 835 | if (may_warn) |
f2341e0a | 836 | 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 |
837 | return -ESRCH; |
838 | } | |
839 | ||
db01f8b3 MS |
840 | if (s->main_pid_known) { |
841 | if (pid == s->main_pid) | |
842 | return 0; | |
843 | ||
f2341e0a | 844 | log_unit_debug(UNIT(s), "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
8bb2d17d | 845 | |
db01f8b3 MS |
846 | service_unwatch_main_pid(s); |
847 | s->main_pid_known = false; | |
3a111838 | 848 | } else |
f2341e0a | 849 | log_unit_debug(UNIT(s), "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 850 | |
117dcc57 ZJS |
851 | r = service_set_main_pid(s, pid); |
852 | if (r < 0) | |
16f6025e LP |
853 | return r; |
854 | ||
117dcc57 | 855 | r = unit_watch_pid(UNIT(s), pid); |
e8b509d3 LP |
856 | if (r < 0) /* FIXME: we need to do something here */ |
857 | return log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", pid); | |
034c6ed7 LP |
858 | |
859 | return 0; | |
860 | } | |
861 | ||
783e05d6 | 862 | static void service_search_main_pid(Service *s) { |
efdb0237 | 863 | pid_t pid = 0; |
4fbf50b3 LP |
864 | int r; |
865 | ||
866 | assert(s); | |
867 | ||
3185a36b LP |
868 | /* If we know it anyway, don't ever fallback to unreliable |
869 | * heuristics */ | |
4fbf50b3 | 870 | if (s->main_pid_known) |
783e05d6 | 871 | return; |
4fbf50b3 | 872 | |
3185a36b | 873 | if (!s->guess_main_pid) |
783e05d6 | 874 | return; |
3185a36b | 875 | |
4fbf50b3 LP |
876 | assert(s->main_pid <= 0); |
877 | ||
783e05d6 ZJS |
878 | if (unit_search_main_pid(UNIT(s), &pid) < 0) |
879 | return; | |
4fbf50b3 | 880 | |
f2341e0a | 881 | log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid); |
783e05d6 ZJS |
882 | if (service_set_main_pid(s, pid) < 0) |
883 | return; | |
4fbf50b3 | 884 | |
117dcc57 | 885 | r = unit_watch_pid(UNIT(s), pid); |
783e05d6 | 886 | if (r < 0) |
4fbf50b3 | 887 | /* FIXME: we need to do something here */ |
f2341e0a | 888 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", pid); |
4fbf50b3 LP |
889 | } |
890 | ||
034c6ed7 LP |
891 | static void service_set_state(Service *s, ServiceState state) { |
892 | ServiceState old_state; | |
e056b01d | 893 | const UnitActiveState *table; |
842129f5 | 894 | |
5cb5a6ff LP |
895 | assert(s); |
896 | ||
e056b01d LP |
897 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
898 | ||
034c6ed7 | 899 | old_state = s->state; |
5cb5a6ff | 900 | s->state = state; |
034c6ed7 | 901 | |
3a111838 MS |
902 | service_unwatch_pid_file(s); |
903 | ||
842129f5 LP |
904 | if (!IN_SET(state, |
905 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
36c16a7c | 906 | SERVICE_RUNNING, |
842129f5 | 907 | SERVICE_RELOAD, |
57614eb1 | 908 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 LP |
909 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
910 | SERVICE_AUTO_RESTART)) | |
718db961 | 911 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 912 | |
842129f5 LP |
913 | if (!IN_SET(state, |
914 | SERVICE_START, SERVICE_START_POST, | |
915 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 | 916 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf108e55 | 917 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 918 | service_unwatch_main_pid(s); |
867b3b7d LP |
919 | s->main_command = NULL; |
920 | } | |
034c6ed7 | 921 | |
842129f5 LP |
922 | if (!IN_SET(state, |
923 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
924 | SERVICE_RELOAD, | |
57614eb1 | 925 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 | 926 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 927 | service_unwatch_control_pid(s); |
034c6ed7 | 928 | s->control_command = NULL; |
a16e1123 | 929 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 930 | } |
034c6ed7 | 931 | |
a911bb9a LP |
932 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
933 | unit_unwatch_all_pids(UNIT(s)); | |
934 | ||
842129f5 LP |
935 | if (!IN_SET(state, |
936 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
937 | SERVICE_RUNNING, SERVICE_RELOAD, | |
57614eb1 LP |
938 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
939 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && | |
5cc3985e | 940 | !(state == SERVICE_DEAD && UNIT(s)->job)) |
4f2d528d LP |
941 | service_close_socket_fd(s); |
942 | ||
7596e9e1 | 943 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
944 | service_stop_watchdog(s); |
945 | ||
f6023656 LP |
946 | /* For the inactive states unit_notify() will trim the cgroup, |
947 | * but for exit we have to do that ourselves... */ | |
2c289ea8 | 948 | if (state == SERVICE_EXITED && !MANAGER_IS_RELOADING(UNIT(s)->manager)) |
efdb0237 | 949 | unit_prune_cgroup(UNIT(s)); |
f6023656 | 950 | |
9cd86184 OB |
951 | /* For remain_after_exit services, let's see if we can "release" the |
952 | * hold on the console, since unit_notify() only does that in case of | |
953 | * change of state */ | |
f49650ce LP |
954 | if (state == SERVICE_EXITED && |
955 | s->remain_after_exit && | |
9cd86184 | 956 | UNIT(s)->manager->n_on_console > 0) { |
f49650ce LP |
957 | |
958 | ExecContext *ec; | |
959 | ||
960 | ec = unit_get_exec_context(UNIT(s)); | |
9cd86184 OB |
961 | if (ec && exec_context_may_touch_console(ec)) { |
962 | Manager *m = UNIT(s)->manager; | |
963 | ||
313cefa1 | 964 | m->n_on_console--; |
9cd86184 OB |
965 | if (m->n_on_console == 0) |
966 | /* unset no_console_output flag, since the console is free */ | |
967 | m->no_console_output = false; | |
968 | } | |
969 | } | |
970 | ||
e537352b | 971 | if (old_state != state) |
f2341e0a | 972 | log_unit_debug(UNIT(s), "Changed %s -> %s", service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 973 | |
e056b01d | 974 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
034c6ed7 LP |
975 | } |
976 | ||
36c16a7c LP |
977 | static usec_t service_coldplug_timeout(Service *s) { |
978 | assert(s); | |
979 | ||
980 | switch (s->deserialized_state) { | |
981 | ||
982 | case SERVICE_START_PRE: | |
983 | case SERVICE_START: | |
984 | case SERVICE_START_POST: | |
985 | case SERVICE_RELOAD: | |
986 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_start_usec); | |
987 | ||
988 | case SERVICE_RUNNING: | |
989 | return usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec); | |
990 | ||
991 | case SERVICE_STOP: | |
992 | case SERVICE_STOP_SIGABRT: | |
993 | case SERVICE_STOP_SIGTERM: | |
994 | case SERVICE_STOP_SIGKILL: | |
995 | case SERVICE_STOP_POST: | |
996 | case SERVICE_FINAL_SIGTERM: | |
997 | case SERVICE_FINAL_SIGKILL: | |
998 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_stop_usec); | |
999 | ||
1000 | case SERVICE_AUTO_RESTART: | |
1001 | return usec_add(UNIT(s)->inactive_enter_timestamp.monotonic, s->restart_usec); | |
1002 | ||
1003 | default: | |
1004 | return USEC_INFINITY; | |
1005 | } | |
1006 | } | |
1007 | ||
be847e82 | 1008 | static int service_coldplug(Unit *u) { |
a16e1123 LP |
1009 | Service *s = SERVICE(u); |
1010 | int r; | |
1011 | ||
1012 | assert(s); | |
1013 | assert(s->state == SERVICE_DEAD); | |
1014 | ||
930d2838 LP |
1015 | if (s->deserialized_state == s->state) |
1016 | return 0; | |
6c12b52e | 1017 | |
36c16a7c LP |
1018 | r = service_arm_timer(s, service_coldplug_timeout(s)); |
1019 | if (r < 0) | |
1020 | return r; | |
a911bb9a | 1021 | |
930d2838 LP |
1022 | if (s->main_pid > 0 && |
1023 | pid_is_unwaited(s->main_pid) && | |
1024 | ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) || | |
1025 | IN_SET(s->deserialized_state, | |
1026 | SERVICE_START, SERVICE_START_POST, | |
1027 | SERVICE_RUNNING, SERVICE_RELOAD, | |
1028 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1029 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { | |
1030 | r = unit_watch_pid(UNIT(s), s->main_pid); | |
1031 | if (r < 0) | |
1032 | return r; | |
1033 | } | |
bb242b7b | 1034 | |
930d2838 LP |
1035 | if (s->control_pid > 0 && |
1036 | pid_is_unwaited(s->control_pid) && | |
1037 | IN_SET(s->deserialized_state, | |
1038 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1039 | SERVICE_RELOAD, | |
1040 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1041 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
1042 | r = unit_watch_pid(UNIT(s), s->control_pid); | |
1043 | if (r < 0) | |
1044 | return r; | |
a16e1123 | 1045 | } |
92c1622e | 1046 | |
930d2838 LP |
1047 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
1048 | unit_watch_all_pids(UNIT(s)); | |
1049 | ||
1050 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) | |
1051 | service_start_watchdog(s); | |
1052 | ||
29206d46 LP |
1053 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
1054 | (void) unit_setup_dynamic_creds(u); | |
1055 | ||
3ebcd323 ZJS |
1056 | if (UNIT_ISSET(s->accept_socket)) { |
1057 | Socket* socket = SOCKET(UNIT_DEREF(s->accept_socket)); | |
1058 | ||
1059 | if (socket->max_connections_per_source > 0) { | |
1060 | SocketPeer *peer; | |
1061 | ||
1062 | /* Make a best-effort attempt at bumping the connection count */ | |
1063 | if (socket_acquire_peer(socket, s->socket_fd, &peer) > 0) { | |
1064 | socket_peer_unref(s->peer); | |
1065 | s->peer = peer; | |
1066 | } | |
1067 | } | |
1068 | } | |
1069 | ||
930d2838 | 1070 | service_set_state(s, s->deserialized_state); |
a16e1123 LP |
1071 | return 0; |
1072 | } | |
1073 | ||
4c47affc FB |
1074 | static int service_collect_fds(Service *s, |
1075 | int **fds, | |
1076 | char ***fd_names, | |
1077 | unsigned *n_storage_fds, | |
1078 | unsigned *n_socket_fds) { | |
1079 | ||
8dd4c05b | 1080 | _cleanup_strv_free_ char **rfd_names = NULL; |
a354329f | 1081 | _cleanup_free_ int *rfds = NULL; |
4c47affc FB |
1082 | unsigned rn_socket_fds = 0, rn_storage_fds = 0; |
1083 | int r; | |
44d8db9e LP |
1084 | |
1085 | assert(s); | |
1086 | assert(fds); | |
8dd4c05b | 1087 | assert(fd_names); |
9b141911 | 1088 | assert(n_socket_fds); |
44d8db9e | 1089 | |
8dd4c05b | 1090 | if (s->socket_fd >= 0) { |
6cf6bbc2 | 1091 | |
8dd4c05b | 1092 | /* Pass the per-connection socket */ |
57020a3a | 1093 | |
8dd4c05b LP |
1094 | rfds = new(int, 1); |
1095 | if (!rfds) | |
1096 | return -ENOMEM; | |
1097 | rfds[0] = s->socket_fd; | |
57020a3a | 1098 | |
8dd4c05b LP |
1099 | rfd_names = strv_new("connection", NULL); |
1100 | if (!rfd_names) | |
1101 | return -ENOMEM; | |
44d8db9e | 1102 | |
4c47affc | 1103 | rn_socket_fds = 1; |
8dd4c05b LP |
1104 | } else { |
1105 | Iterator i; | |
1106 | Unit *u; | |
44d8db9e | 1107 | |
8dd4c05b | 1108 | /* Pass all our configured sockets for singleton services */ |
44d8db9e | 1109 | |
8dd4c05b LP |
1110 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
1111 | _cleanup_free_ int *cfds = NULL; | |
1112 | Socket *sock; | |
1113 | int cn_fds; | |
44d8db9e | 1114 | |
8dd4c05b LP |
1115 | if (u->type != UNIT_SOCKET) |
1116 | continue; | |
44d8db9e | 1117 | |
8dd4c05b | 1118 | sock = SOCKET(u); |
a354329f | 1119 | |
8dd4c05b LP |
1120 | cn_fds = socket_collect_fds(sock, &cfds); |
1121 | if (cn_fds < 0) | |
1122 | return cn_fds; | |
44d8db9e | 1123 | |
8dd4c05b LP |
1124 | if (cn_fds <= 0) |
1125 | continue; | |
79c7626d | 1126 | |
8dd4c05b LP |
1127 | if (!rfds) { |
1128 | rfds = cfds; | |
4c47affc | 1129 | rn_socket_fds = cn_fds; |
8dd4c05b LP |
1130 | |
1131 | cfds = NULL; | |
1132 | } else { | |
1133 | int *t; | |
1134 | ||
4c47affc | 1135 | t = realloc(rfds, (rn_socket_fds + cn_fds) * sizeof(int)); |
8dd4c05b LP |
1136 | if (!t) |
1137 | return -ENOMEM; | |
1138 | ||
4c47affc | 1139 | memcpy(t + rn_socket_fds, cfds, cn_fds * sizeof(int)); |
8dd4c05b LP |
1140 | |
1141 | rfds = t; | |
4c47affc | 1142 | rn_socket_fds += cn_fds; |
8dd4c05b LP |
1143 | } |
1144 | ||
1145 | r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds); | |
1146 | if (r < 0) | |
1147 | return r; | |
44d8db9e LP |
1148 | } |
1149 | } | |
1150 | ||
a354329f LP |
1151 | if (s->n_fd_store > 0) { |
1152 | ServiceFDStore *fs; | |
4c47affc | 1153 | unsigned n_fds; |
8dd4c05b | 1154 | char **nl; |
a354329f LP |
1155 | int *t; |
1156 | ||
4c47affc | 1157 | t = realloc(rfds, (rn_socket_fds + s->n_fd_store) * sizeof(int)); |
a354329f LP |
1158 | if (!t) |
1159 | return -ENOMEM; | |
1160 | ||
1161 | rfds = t; | |
8dd4c05b | 1162 | |
4c47affc | 1163 | nl = realloc(rfd_names, (rn_socket_fds + s->n_fd_store + 1) * sizeof(char*)); |
8dd4c05b LP |
1164 | if (!nl) |
1165 | return -ENOMEM; | |
1166 | ||
1167 | rfd_names = nl; | |
4c47affc | 1168 | n_fds = rn_socket_fds; |
8dd4c05b LP |
1169 | |
1170 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
4c47affc FB |
1171 | rfds[n_fds] = fs->fd; |
1172 | rfd_names[n_fds] = strdup(strempty(fs->fdname)); | |
1173 | if (!rfd_names[n_fds]) | |
8dd4c05b LP |
1174 | return -ENOMEM; |
1175 | ||
4c47affc FB |
1176 | rn_storage_fds++; |
1177 | n_fds++; | |
8dd4c05b LP |
1178 | } |
1179 | ||
4c47affc | 1180 | rfd_names[n_fds] = NULL; |
a354329f LP |
1181 | } |
1182 | ||
44d8db9e | 1183 | *fds = rfds; |
8dd4c05b | 1184 | *fd_names = rfd_names; |
9b141911 | 1185 | *n_socket_fds = rn_socket_fds; |
4c47affc | 1186 | *n_storage_fds = rn_storage_fds; |
3e33402a | 1187 | |
a354329f | 1188 | rfds = NULL; |
8dd4c05b | 1189 | rfd_names = NULL; |
79c7626d | 1190 | |
4c47affc | 1191 | return 0; |
44d8db9e LP |
1192 | } |
1193 | ||
6375bd20 JW |
1194 | static bool service_exec_needs_notify_socket(Service *s, ExecFlags flags) { |
1195 | assert(s); | |
1196 | ||
1197 | /* Notifications are accepted depending on the process and | |
1198 | * the access setting of the service: | |
1199 | * process: \ access: NONE MAIN EXEC ALL | |
1200 | * main no yes yes yes | |
1201 | * control no no yes yes | |
1202 | * other (forked) no no no yes */ | |
1203 | ||
1204 | if (flags & EXEC_IS_CONTROL) | |
1205 | /* A control process */ | |
1206 | return IN_SET(s->notify_access, NOTIFY_EXEC, NOTIFY_ALL); | |
1207 | ||
1208 | /* We only spawn main processes and control processes, so any | |
1209 | * process that is not a control process is a main process */ | |
1210 | return s->notify_access != NOTIFY_NONE; | |
1211 | } | |
1212 | ||
81a2b7ce LP |
1213 | static int service_spawn( |
1214 | Service *s, | |
1215 | ExecCommand *c, | |
21b2ce39 | 1216 | usec_t timeout, |
c39f1ce2 | 1217 | ExecFlags flags, |
81a2b7ce LP |
1218 | pid_t *_pid) { |
1219 | ||
5125e762 | 1220 | _cleanup_strv_free_ char **final_env = NULL, **our_env = NULL, **fd_names = NULL; |
8dd4c05b | 1221 | _cleanup_free_ int *fds = NULL; |
4c47affc | 1222 | unsigned n_storage_fds = 0, n_socket_fds = 0, n_env = 0; |
8dd4c05b LP |
1223 | pid_t pid; |
1224 | ||
9fa95f85 | 1225 | ExecParameters exec_params = { |
c39f1ce2 LP |
1226 | .flags = flags, |
1227 | .stdin_fd = -1, | |
1228 | .stdout_fd = -1, | |
1229 | .stderr_fd = -1, | |
9fa95f85 | 1230 | }; |
034c6ed7 | 1231 | |
8dd4c05b LP |
1232 | int r; |
1233 | ||
034c6ed7 LP |
1234 | assert(s); |
1235 | assert(c); | |
1236 | assert(_pid); | |
1237 | ||
9c1a61ad LP |
1238 | if (flags & EXEC_IS_CONTROL) { |
1239 | /* If this is a control process, mask the permissions/chroot application if this is requested. */ | |
1240 | if (s->permissions_start_only) | |
1703fa41 | 1241 | exec_params.flags &= ~EXEC_APPLY_SANDBOXING; |
9c1a61ad LP |
1242 | if (s->root_directory_start_only) |
1243 | exec_params.flags &= ~EXEC_APPLY_CHROOT; | |
1244 | } | |
1245 | ||
5ad096b3 | 1246 | (void) unit_realize_cgroup(UNIT(s)); |
906c06f6 DM |
1247 | if (s->reset_accounting) { |
1248 | (void) unit_reset_cpu_accounting(UNIT(s)); | |
1249 | (void) unit_reset_ip_accounting(UNIT(s)); | |
1250 | s->reset_accounting = false; | |
5ad096b3 | 1251 | } |
4ad49000 | 1252 | |
613b411c LP |
1253 | r = unit_setup_exec_runtime(UNIT(s)); |
1254 | if (r < 0) | |
36c16a7c | 1255 | return r; |
613b411c | 1256 | |
29206d46 LP |
1257 | r = unit_setup_dynamic_creds(UNIT(s)); |
1258 | if (r < 0) | |
1259 | return r; | |
1260 | ||
c39f1ce2 | 1261 | if ((flags & EXEC_PASS_FDS) || |
6cf6bbc2 LP |
1262 | s->exec_context.std_input == EXEC_INPUT_SOCKET || |
1263 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1264 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1265 | ||
4c47affc | 1266 | r = service_collect_fds(s, &fds, &fd_names, &n_storage_fds, &n_socket_fds); |
8dd4c05b | 1267 | if (r < 0) |
36c16a7c | 1268 | return r; |
6cf6bbc2 | 1269 | |
4c47affc | 1270 | log_unit_debug(UNIT(s), "Passing %i fds to service", n_storage_fds + n_socket_fds); |
4f2d528d | 1271 | } |
44d8db9e | 1272 | |
36c16a7c LP |
1273 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), timeout)); |
1274 | if (r < 0) | |
1275 | return r; | |
034c6ed7 | 1276 | |
136dc4c4 | 1277 | our_env = new0(char*, 9); |
36c16a7c LP |
1278 | if (!our_env) |
1279 | return -ENOMEM; | |
c952c6ec | 1280 | |
6375bd20 | 1281 | if (service_exec_needs_notify_socket(s, flags)) |
36c16a7c LP |
1282 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) |
1283 | return -ENOMEM; | |
c952c6ec | 1284 | |
2105e76a | 1285 | if (s->main_pid > 0) |
36c16a7c LP |
1286 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) |
1287 | return -ENOMEM; | |
2105e76a | 1288 | |
c39f1ce2 | 1289 | if (MANAGER_IS_USER(UNIT(s)->manager)) |
df0ff127 | 1290 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid_cached()) < 0) |
36c16a7c | 1291 | return -ENOMEM; |
97ae63e2 | 1292 | |
8dd4c05b | 1293 | if (s->socket_fd >= 0) { |
3b1c5241 SL |
1294 | union sockaddr_union sa; |
1295 | socklen_t salen = sizeof(sa); | |
1296 | ||
1297 | r = getpeername(s->socket_fd, &sa.sa, &salen); | |
f2dbd059 KR |
1298 | if (r < 0) { |
1299 | r = -errno; | |
1300 | ||
1301 | /* ENOTCONN is legitimate if the endpoint disappeared on shutdown. | |
1302 | * This connection is over, but the socket unit lives on. */ | |
7dd736ab | 1303 | if (r != -ENOTCONN || !IN_SET(s->control_command_id, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST)) |
f2dbd059 KR |
1304 | return r; |
1305 | } | |
3b1c5241 | 1306 | |
359a5bcf | 1307 | if (r == 0 && IN_SET(sa.sa.sa_family, AF_INET, AF_INET6, AF_VSOCK)) { |
3b1c5241 SL |
1308 | _cleanup_free_ char *addr = NULL; |
1309 | char *t; | |
882ac6e7 | 1310 | unsigned port; |
3b1c5241 SL |
1311 | |
1312 | r = sockaddr_pretty(&sa.sa, salen, true, false, &addr); | |
1313 | if (r < 0) | |
36c16a7c | 1314 | return r; |
3b1c5241 SL |
1315 | |
1316 | t = strappend("REMOTE_ADDR=", addr); | |
36c16a7c LP |
1317 | if (!t) |
1318 | return -ENOMEM; | |
3b1c5241 SL |
1319 | our_env[n_env++] = t; |
1320 | ||
882ac6e7 SH |
1321 | r = sockaddr_port(&sa.sa, &port); |
1322 | if (r < 0) | |
1323 | return r; | |
3b1c5241 | 1324 | |
36c16a7c LP |
1325 | if (asprintf(&t, "REMOTE_PORT=%u", port) < 0) |
1326 | return -ENOMEM; | |
3b1c5241 SL |
1327 | our_env[n_env++] = t; |
1328 | } | |
1329 | } | |
1330 | ||
136dc4c4 LP |
1331 | if (flags & EXEC_SETENV_RESULT) { |
1332 | if (asprintf(our_env + n_env++, "SERVICE_RESULT=%s", service_result_to_string(s->result)) < 0) | |
1333 | return -ENOMEM; | |
1334 | ||
1335 | if (s->main_exec_status.pid > 0 && | |
1336 | dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { | |
1337 | if (asprintf(our_env + n_env++, "EXIT_CODE=%s", sigchld_code_to_string(s->main_exec_status.code)) < 0) | |
1338 | return -ENOMEM; | |
1339 | ||
1340 | if (s->main_exec_status.code == CLD_EXITED) | |
1341 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%i", s->main_exec_status.status); | |
1342 | else | |
1343 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%s", signal_to_string(s->main_exec_status.status)); | |
1344 | if (r < 0) | |
1345 | return -ENOMEM; | |
1346 | } | |
1347 | } | |
1348 | ||
19bbdd98 | 1349 | manager_set_exec_params(UNIT(s)->manager, &exec_params); |
f0d47797 | 1350 | unit_set_exec_params(UNIT(s), &exec_params); |
3536f49e YW |
1351 | |
1352 | final_env = strv_env_merge(2, exec_params.environment, our_env, NULL); | |
36c16a7c LP |
1353 | if (!final_env) |
1354 | return -ENOMEM; | |
c952c6ec | 1355 | |
c39f1ce2 | 1356 | if ((flags & EXEC_IS_CONTROL) && UNIT(s)->cgroup_path) { |
f0d47797 LP |
1357 | exec_params.cgroup_path = strjoina(UNIT(s)->cgroup_path, "/control"); |
1358 | (void) cg_create(SYSTEMD_CGROUP_CONTROLLER, exec_params.cgroup_path); | |
1359 | } | |
4ad49000 | 1360 | |
5bf7569c LP |
1361 | /* System services should get a new keyring by default. */ |
1362 | SET_FLAG(exec_params.flags, EXEC_NEW_KEYRING, MANAGER_IS_SYSTEM(UNIT(s)->manager)); | |
ac647978 LP |
1363 | |
1364 | /* System D-Bus needs nss-systemd disabled, so that we don't deadlock */ | |
1365 | SET_FLAG(exec_params.flags, EXEC_NSS_BYPASS_BUS, | |
1366 | MANAGER_IS_SYSTEM(UNIT(s)->manager) && unit_has_name(UNIT(s), SPECIAL_DBUS_SERVICE)); | |
4ad49000 | 1367 | |
5125e762 | 1368 | exec_params.argv = c->argv; |
c39f1ce2 | 1369 | exec_params.environment = final_env; |
9fa95f85 | 1370 | exec_params.fds = fds; |
8dd4c05b | 1371 | exec_params.fd_names = fd_names; |
4c47affc | 1372 | exec_params.n_storage_fds = n_storage_fds; |
9b141911 | 1373 | exec_params.n_socket_fds = n_socket_fds; |
9fa95f85 | 1374 | exec_params.watchdog_usec = s->watchdog_usec; |
a34ceba6 | 1375 | exec_params.selinux_context_net = s->socket_fd_selinux_context_net; |
9fa95f85 DM |
1376 | if (s->type == SERVICE_IDLE) |
1377 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
a34ceba6 LP |
1378 | exec_params.stdin_fd = s->stdin_fd; |
1379 | exec_params.stdout_fd = s->stdout_fd; | |
1380 | exec_params.stderr_fd = s->stderr_fd; | |
9fa95f85 | 1381 | |
f2341e0a LP |
1382 | r = exec_spawn(UNIT(s), |
1383 | c, | |
9e2f7c11 | 1384 | &s->exec_context, |
9fa95f85 | 1385 | &exec_params, |
613b411c | 1386 | s->exec_runtime, |
29206d46 | 1387 | &s->dynamic_creds, |
9e2f7c11 | 1388 | &pid); |
9e2f7c11 | 1389 | if (r < 0) |
36c16a7c | 1390 | return r; |
034c6ed7 | 1391 | |
117dcc57 | 1392 | r = unit_watch_pid(UNIT(s), pid); |
e8b509d3 | 1393 | if (r < 0) /* FIXME: we need to do something here */ |
36c16a7c | 1394 | return r; |
034c6ed7 LP |
1395 | |
1396 | *_pid = pid; | |
1397 | ||
5cb5a6ff | 1398 | return 0; |
034c6ed7 LP |
1399 | } |
1400 | ||
80876c20 LP |
1401 | static int main_pid_good(Service *s) { |
1402 | assert(s); | |
1403 | ||
1404 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1405 | * don't know */ | |
1406 | ||
fc08079e | 1407 | /* If we know the pid file, then let's just check if it is |
80876c20 | 1408 | * still valid */ |
6dfa5494 LP |
1409 | if (s->main_pid_known) { |
1410 | ||
1411 | /* If it's an alien child let's check if it is still | |
1412 | * alive ... */ | |
62220cf7 | 1413 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1414 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1415 | |
1416 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1417 | * which we really should wait for to collect exit | |
1418 | * status and code */ | |
80876c20 | 1419 | return s->main_pid > 0; |
6dfa5494 | 1420 | } |
80876c20 LP |
1421 | |
1422 | /* We don't know the pid */ | |
1423 | return -EAGAIN; | |
1424 | } | |
1425 | ||
44a6b1b6 | 1426 | _pure_ static int control_pid_good(Service *s) { |
80876c20 LP |
1427 | assert(s); |
1428 | ||
1429 | return s->control_pid > 0; | |
1430 | } | |
1431 | ||
1432 | static int cgroup_good(Service *s) { | |
1433 | int r; | |
1434 | ||
1435 | assert(s); | |
1436 | ||
4ad49000 LP |
1437 | if (!UNIT(s)->cgroup_path) |
1438 | return 0; | |
1439 | ||
6f883237 | 1440 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path); |
117dcc57 | 1441 | if (r < 0) |
80876c20 LP |
1442 | return r; |
1443 | ||
1444 | return !r; | |
1445 | } | |
1446 | ||
a509f0e6 LP |
1447 | static bool service_shall_restart(Service *s) { |
1448 | assert(s); | |
1449 | ||
1450 | /* Don't restart after manual stops */ | |
1451 | if (s->forbid_restart) | |
1452 | return false; | |
1453 | ||
1454 | /* Never restart if this is configured as special exception */ | |
1455 | if (exit_status_set_test(&s->restart_prevent_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1456 | return false; | |
1457 | ||
1458 | /* Restart if the exit code/status are configured as restart triggers */ | |
1459 | if (exit_status_set_test(&s->restart_force_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1460 | return true; | |
1461 | ||
1462 | switch (s->restart) { | |
1463 | ||
1464 | case SERVICE_RESTART_NO: | |
1465 | return false; | |
1466 | ||
1467 | case SERVICE_RESTART_ALWAYS: | |
1468 | return true; | |
1469 | ||
1470 | case SERVICE_RESTART_ON_SUCCESS: | |
1471 | return s->result == SERVICE_SUCCESS; | |
1472 | ||
1473 | case SERVICE_RESTART_ON_FAILURE: | |
1474 | return s->result != SERVICE_SUCCESS; | |
1475 | ||
1476 | case SERVICE_RESTART_ON_ABNORMAL: | |
1477 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE); | |
1478 | ||
1479 | case SERVICE_RESTART_ON_WATCHDOG: | |
1480 | return s->result == SERVICE_FAILURE_WATCHDOG; | |
1481 | ||
1482 | case SERVICE_RESTART_ON_ABORT: | |
1483 | return IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP); | |
1484 | ||
1485 | default: | |
1486 | assert_not_reached("unknown restart setting"); | |
1487 | } | |
1488 | } | |
1489 | ||
53f47dfc YW |
1490 | static bool service_will_restart(Service *s) { |
1491 | assert(s); | |
1492 | ||
1493 | if (s->state == SERVICE_AUTO_RESTART) | |
1494 | return true; | |
1495 | if (!UNIT(s)->job) | |
1496 | return false; | |
1497 | if (UNIT(s)->job->type == JOB_START) | |
1498 | return true; | |
1499 | return false; | |
1500 | } | |
1501 | ||
f42806df | 1502 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 | 1503 | int r; |
0f52f8e5 | 1504 | |
034c6ed7 LP |
1505 | assert(s); |
1506 | ||
0f52f8e5 LP |
1507 | /* If there's a stop job queued before we enter the DEAD state, we shouldn't act on Restart=, in order to not |
1508 | * undo what has already been enqueued. */ | |
1509 | if (unit_stop_pending(UNIT(s))) | |
1510 | allow_restart = false; | |
1511 | ||
a0fef983 | 1512 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1513 | s->result = f; |
034c6ed7 | 1514 | |
0c7f15b3 MS |
1515 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1516 | ||
2928b0a8 | 1517 | if (s->result != SERVICE_SUCCESS) { |
f2341e0a | 1518 | log_unit_warning(UNIT(s), "Failed with result '%s'.", service_result_to_string(s->result)); |
87a47f99 | 1519 | emergency_action(UNIT(s)->manager, s->emergency_action, UNIT(s)->reboot_arg, "service failed"); |
2928b0a8 | 1520 | } |
93ae25e6 | 1521 | |
a509f0e6 | 1522 | if (allow_restart && service_shall_restart(s)) { |
034c6ed7 | 1523 | |
36c16a7c | 1524 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
f42806df | 1525 | if (r < 0) |
034c6ed7 LP |
1526 | goto fail; |
1527 | ||
1528 | service_set_state(s, SERVICE_AUTO_RESTART); | |
7a0019d3 LP |
1529 | } else |
1530 | /* If we shan't restart, then flush out the restart counter. But don't do that immediately, so that the | |
1531 | * user can still introspect the counter. Do so on the next start. */ | |
1532 | s->flush_n_restarts = true; | |
034c6ed7 | 1533 | |
f2341e0a | 1534 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1535 | s->forbid_restart = false; |
1536 | ||
e66cf1a3 | 1537 | /* We want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1538 | exec_runtime_destroy(s->exec_runtime); |
1539 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1540 | |
53f47dfc YW |
1541 | if (s->exec_context.runtime_directory_preserve_mode == EXEC_PRESERVE_NO || |
1542 | (s->exec_context.runtime_directory_preserve_mode == EXEC_PRESERVE_RESTART && !service_will_restart(s))) | |
1543 | /* Also, remove the runtime directory */ | |
3536f49e | 1544 | exec_context_destroy_runtime_directory(&s->exec_context, UNIT(s)->manager->prefix[EXEC_DIRECTORY_RUNTIME]); |
e66cf1a3 | 1545 | |
00d9ef85 LP |
1546 | /* Get rid of the IPC bits of the user */ |
1547 | unit_unref_uid_gid(UNIT(s), true); | |
1548 | ||
29206d46 LP |
1549 | /* Release the user, and destroy it if we are the only remaining owner */ |
1550 | dynamic_creds_destroy(&s->dynamic_creds); | |
1551 | ||
9285c9ff LN |
1552 | /* Try to delete the pid file. At this point it will be |
1553 | * out-of-date, and some software might be confused by it, so | |
1554 | * let's remove it. */ | |
1555 | if (s->pid_file) | |
fabab190 | 1556 | (void) unlink(s->pid_file); |
9285c9ff | 1557 | |
034c6ed7 LP |
1558 | return; |
1559 | ||
1560 | fail: | |
f2341e0a | 1561 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1562 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1563 | } |
1564 | ||
f42806df | 1565 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1566 | int r; |
1567 | assert(s); | |
1568 | ||
a0fef983 | 1569 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1570 | s->result = f; |
034c6ed7 | 1571 | |
5e94833f | 1572 | service_unwatch_control_pid(s); |
a911bb9a | 1573 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1574 | |
117dcc57 ZJS |
1575 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1576 | if (s->control_command) { | |
867b3b7d LP |
1577 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1578 | ||
ecedd90f LP |
1579 | r = service_spawn(s, |
1580 | s->control_command, | |
21b2ce39 | 1581 | s->timeout_stop_usec, |
1703fa41 | 1582 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_IS_CONTROL|EXEC_SETENV_RESULT, |
ecedd90f LP |
1583 | &s->control_pid); |
1584 | if (r < 0) | |
034c6ed7 LP |
1585 | goto fail; |
1586 | ||
80876c20 LP |
1587 | service_set_state(s, SERVICE_STOP_POST); |
1588 | } else | |
ac84d1fb | 1589 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1590 | |
1591 | return; | |
1592 | ||
1593 | fail: | |
f2341e0a | 1594 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1595 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1596 | } |
1597 | ||
4940c0b0 LP |
1598 | static int state_to_kill_operation(ServiceState state) { |
1599 | switch (state) { | |
1600 | ||
1601 | case SERVICE_STOP_SIGABRT: | |
1602 | return KILL_ABORT; | |
1603 | ||
1604 | case SERVICE_STOP_SIGTERM: | |
1605 | case SERVICE_FINAL_SIGTERM: | |
1606 | return KILL_TERMINATE; | |
1607 | ||
1608 | case SERVICE_STOP_SIGKILL: | |
1609 | case SERVICE_FINAL_SIGKILL: | |
1610 | return KILL_KILL; | |
1611 | ||
1612 | default: | |
1613 | return _KILL_OPERATION_INVALID; | |
1614 | } | |
1615 | } | |
1616 | ||
f42806df | 1617 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1618 | int r; |
034c6ed7 LP |
1619 | |
1620 | assert(s); | |
1621 | ||
a0fef983 | 1622 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1623 | s->result = f; |
034c6ed7 | 1624 | |
a911bb9a LP |
1625 | unit_watch_all_pids(UNIT(s)); |
1626 | ||
cd2086fe LP |
1627 | r = unit_kill_context( |
1628 | UNIT(s), | |
1629 | &s->kill_context, | |
4940c0b0 | 1630 | state_to_kill_operation(state), |
cd2086fe LP |
1631 | s->main_pid, |
1632 | s->control_pid, | |
1633 | s->main_pid_alien); | |
ac84d1fb | 1634 | |
cd2086fe LP |
1635 | if (r < 0) |
1636 | goto fail; | |
034c6ed7 | 1637 | |
cd2086fe | 1638 | if (r > 0) { |
36c16a7c LP |
1639 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
1640 | if (r < 0) | |
1641 | goto fail; | |
d6ea93e3 | 1642 | |
80876c20 | 1643 | service_set_state(s, state); |
1db0db4b | 1644 | } else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1645 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
1db0db4b | 1646 | else if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1647 | service_enter_stop_post(s, SERVICE_SUCCESS); |
1db0db4b | 1648 | else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb | 1649 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 1650 | else |
f42806df | 1651 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1652 | |
1653 | return; | |
1654 | ||
1655 | fail: | |
f2341e0a | 1656 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 1657 | |
a00973af | 1658 | if (IN_SET(state, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1659 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1660 | else |
f42806df | 1661 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1662 | } |
1663 | ||
308d72dc LP |
1664 | static void service_enter_stop_by_notify(Service *s) { |
1665 | assert(s); | |
1666 | ||
1667 | unit_watch_all_pids(UNIT(s)); | |
1668 | ||
36c16a7c | 1669 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
308d72dc | 1670 | |
6041a7ee MS |
1671 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
1672 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
1673 | } |
1674 | ||
f42806df | 1675 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1676 | int r; |
5925dd3c | 1677 | |
034c6ed7 LP |
1678 | assert(s); |
1679 | ||
a0fef983 | 1680 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1681 | s->result = f; |
034c6ed7 | 1682 | |
5e94833f | 1683 | service_unwatch_control_pid(s); |
a911bb9a | 1684 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1685 | |
117dcc57 ZJS |
1686 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1687 | if (s->control_command) { | |
867b3b7d LP |
1688 | s->control_command_id = SERVICE_EXEC_STOP; |
1689 | ||
ecedd90f LP |
1690 | r = service_spawn(s, |
1691 | s->control_command, | |
21b2ce39 | 1692 | s->timeout_stop_usec, |
1703fa41 | 1693 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_SETENV_RESULT, |
ecedd90f LP |
1694 | &s->control_pid); |
1695 | if (r < 0) | |
034c6ed7 LP |
1696 | goto fail; |
1697 | ||
80876c20 LP |
1698 | service_set_state(s, SERVICE_STOP); |
1699 | } else | |
f42806df | 1700 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1701 | |
1702 | return; | |
1703 | ||
1704 | fail: | |
f2341e0a | 1705 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 1706 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1707 | } |
1708 | ||
957c3cf9 LP |
1709 | static bool service_good(Service *s) { |
1710 | int main_pid_ok; | |
1711 | assert(s); | |
1712 | ||
1713 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
1714 | return false; | |
1715 | ||
1716 | main_pid_ok = main_pid_good(s); | |
1717 | if (main_pid_ok > 0) /* It's alive */ | |
1718 | return true; | |
1719 | if (main_pid_ok == 0) /* It's dead */ | |
1720 | return false; | |
1721 | ||
1722 | /* OK, we don't know anything about the main PID, maybe | |
1723 | * because there is none. Let's check the control group | |
1724 | * instead. */ | |
1725 | ||
1726 | return cgroup_good(s) != 0; | |
1727 | } | |
1728 | ||
f42806df | 1729 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
1730 | assert(s); |
1731 | ||
a0fef983 | 1732 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1733 | s->result = f; |
80876c20 | 1734 | |
089b64d5 LP |
1735 | service_unwatch_control_pid(s); |
1736 | ||
957c3cf9 | 1737 | if (service_good(s)) { |
308d72dc LP |
1738 | |
1739 | /* If there are any queued up sd_notify() | |
1740 | * notifications, process them now */ | |
1741 | if (s->notify_state == NOTIFY_RELOADING) | |
1742 | service_enter_reload_by_notify(s); | |
1743 | else if (s->notify_state == NOTIFY_STOPPING) | |
1744 | service_enter_stop_by_notify(s); | |
36c16a7c | 1745 | else { |
308d72dc | 1746 | service_set_state(s, SERVICE_RUNNING); |
36c16a7c LP |
1747 | service_arm_timer(s, usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec)); |
1748 | } | |
308d72dc | 1749 | |
3d474ef7 | 1750 | } else if (f != SERVICE_SUCCESS) |
c3fda31d | 1751 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3d474ef7 | 1752 | else if (s->remain_after_exit) |
80876c20 LP |
1753 | service_set_state(s, SERVICE_EXITED); |
1754 | else | |
f42806df | 1755 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
1756 | } |
1757 | ||
034c6ed7 LP |
1758 | static void service_enter_start_post(Service *s) { |
1759 | int r; | |
1760 | assert(s); | |
1761 | ||
5e94833f | 1762 | service_unwatch_control_pid(s); |
842129f5 | 1763 | service_reset_watchdog(s); |
bb242b7b | 1764 | |
117dcc57 ZJS |
1765 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
1766 | if (s->control_command) { | |
867b3b7d LP |
1767 | s->control_command_id = SERVICE_EXEC_START_POST; |
1768 | ||
ecedd90f LP |
1769 | r = service_spawn(s, |
1770 | s->control_command, | |
21b2ce39 | 1771 | s->timeout_start_usec, |
1703fa41 | 1772 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL, |
ecedd90f LP |
1773 | &s->control_pid); |
1774 | if (r < 0) | |
034c6ed7 LP |
1775 | goto fail; |
1776 | ||
80876c20 LP |
1777 | service_set_state(s, SERVICE_START_POST); |
1778 | } else | |
f42806df | 1779 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1780 | |
1781 | return; | |
1782 | ||
1783 | fail: | |
f2341e0a | 1784 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 1785 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1786 | } |
1787 | ||
4ad49000 LP |
1788 | static void service_kill_control_processes(Service *s) { |
1789 | char *p; | |
1790 | ||
1791 | if (!UNIT(s)->cgroup_path) | |
1792 | return; | |
1793 | ||
63c372cb | 1794 | p = strjoina(UNIT(s)->cgroup_path, "/control"); |
1d98fef1 | 1795 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, CGROUP_SIGCONT|CGROUP_IGNORE_SELF|CGROUP_REMOVE, NULL, NULL, NULL); |
4ad49000 LP |
1796 | } |
1797 | ||
034c6ed7 | 1798 | static void service_enter_start(Service *s) { |
4ad49000 | 1799 | ExecCommand *c; |
36c16a7c | 1800 | usec_t timeout; |
034c6ed7 LP |
1801 | pid_t pid; |
1802 | int r; | |
1803 | ||
1804 | assert(s); | |
1805 | ||
41efeaec LP |
1806 | service_unwatch_control_pid(s); |
1807 | service_unwatch_main_pid(s); | |
80876c20 | 1808 | |
8f53a7b8 LP |
1809 | /* We want to ensure that nobody leaks processes from |
1810 | * START_PRE here, so let's go on a killing spree, People | |
1811 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 1812 | service_kill_control_processes(s); |
8f53a7b8 | 1813 | |
867b3b7d LP |
1814 | if (s->type == SERVICE_FORKING) { |
1815 | s->control_command_id = SERVICE_EXEC_START; | |
1816 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
1817 | ||
1818 | s->main_command = NULL; | |
1819 | } else { | |
1820 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
1821 | s->control_command = NULL; | |
1822 | ||
1823 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
1824 | } | |
34e9ba66 | 1825 | |
96fb8242 | 1826 | if (!c) { |
47fffb35 LP |
1827 | if (s->type != SERVICE_ONESHOT) { |
1828 | /* There's no command line configured for the main command? Hmm, that is strange. This can only | |
1829 | * happen if the configuration changes at runtime. In this case, let's enter a failure | |
1830 | * state. */ | |
1831 | log_unit_error(UNIT(s), "There's no 'start' task anymore we could start: %m"); | |
1832 | r = -ENXIO; | |
1833 | goto fail; | |
1834 | } | |
1835 | ||
96fb8242 LP |
1836 | service_enter_start_post(s); |
1837 | return; | |
1838 | } | |
1839 | ||
36c16a7c LP |
1840 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) |
1841 | /* For simple + idle this is the main process. We don't apply any timeout here, but | |
1842 | * service_enter_running() will later apply the .runtime_max_usec timeout. */ | |
1843 | timeout = USEC_INFINITY; | |
1844 | else | |
1845 | timeout = s->timeout_start_usec; | |
1846 | ||
ecedd90f LP |
1847 | r = service_spawn(s, |
1848 | c, | |
36c16a7c | 1849 | timeout, |
1703fa41 | 1850 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
1851 | &pid); |
1852 | if (r < 0) | |
034c6ed7 LP |
1853 | goto fail; |
1854 | ||
36c16a7c | 1855 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) { |
034c6ed7 LP |
1856 | /* For simple services we immediately start |
1857 | * the START_POST binaries. */ | |
1858 | ||
5925dd3c | 1859 | service_set_main_pid(s, pid); |
034c6ed7 LP |
1860 | service_enter_start_post(s); |
1861 | ||
1862 | } else if (s->type == SERVICE_FORKING) { | |
1863 | ||
1864 | /* For forking services we wait until the start | |
1865 | * process exited. */ | |
1866 | ||
e55224ca | 1867 | s->control_pid = pid; |
80876c20 LP |
1868 | service_set_state(s, SERVICE_START); |
1869 | ||
36c16a7c | 1870 | } else if (IN_SET(s->type, SERVICE_ONESHOT, SERVICE_DBUS, SERVICE_NOTIFY)) { |
7d55e835 | 1871 | |
34e9ba66 | 1872 | /* For oneshot services we wait until the start |
7d55e835 LP |
1873 | * process exited, too, but it is our main process. */ |
1874 | ||
05e343b7 | 1875 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
1876 | * but wait for the bus name to appear on the |
1877 | * bus. Notify services are similar. */ | |
05e343b7 | 1878 | |
5925dd3c | 1879 | service_set_main_pid(s, pid); |
80876c20 | 1880 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
1881 | } else |
1882 | assert_not_reached("Unknown service type"); | |
1883 | ||
1884 | return; | |
1885 | ||
1886 | fail: | |
f2341e0a | 1887 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
c3fda31d | 1888 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1889 | } |
1890 | ||
1891 | static void service_enter_start_pre(Service *s) { | |
1892 | int r; | |
1893 | ||
1894 | assert(s); | |
1895 | ||
5e94833f LP |
1896 | service_unwatch_control_pid(s); |
1897 | ||
117dcc57 ZJS |
1898 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
1899 | if (s->control_command) { | |
8f53a7b8 LP |
1900 | /* Before we start anything, let's clear up what might |
1901 | * be left from previous runs. */ | |
4ad49000 | 1902 | service_kill_control_processes(s); |
8f53a7b8 | 1903 | |
867b3b7d LP |
1904 | s->control_command_id = SERVICE_EXEC_START_PRE; |
1905 | ||
ecedd90f LP |
1906 | r = service_spawn(s, |
1907 | s->control_command, | |
21b2ce39 | 1908 | s->timeout_start_usec, |
1703fa41 | 1909 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, |
ecedd90f LP |
1910 | &s->control_pid); |
1911 | if (r < 0) | |
034c6ed7 LP |
1912 | goto fail; |
1913 | ||
80876c20 LP |
1914 | service_set_state(s, SERVICE_START_PRE); |
1915 | } else | |
034c6ed7 LP |
1916 | service_enter_start(s); |
1917 | ||
1918 | return; | |
1919 | ||
1920 | fail: | |
f2341e0a | 1921 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 1922 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1923 | } |
1924 | ||
1925 | static void service_enter_restart(Service *s) { | |
4afd3348 | 1926 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 1927 | int r; |
398ef8ba | 1928 | |
034c6ed7 LP |
1929 | assert(s); |
1930 | ||
a8bb2e65 LP |
1931 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
1932 | /* Don't restart things if we are going down anyway */ | |
f2341e0a | 1933 | log_unit_info(UNIT(s), "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 1934 | |
36c16a7c | 1935 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
a8bb2e65 | 1936 | if (r < 0) |
2edfa366 | 1937 | goto fail; |
feae8adb DW |
1938 | |
1939 | return; | |
2edfa366 LP |
1940 | } |
1941 | ||
48bb5876 DW |
1942 | /* Any units that are bound to this service must also be |
1943 | * restarted. We use JOB_RESTART (instead of the more obvious | |
1944 | * JOB_START) here so that those dependency jobs will be added | |
1945 | * as well. */ | |
4bd29fe5 | 1946 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, &error, NULL); |
48bb5876 | 1947 | if (r < 0) |
034c6ed7 LP |
1948 | goto fail; |
1949 | ||
7a0019d3 LP |
1950 | /* Count the jobs we enqueue for restarting. This counter is maintained as long as the unit isn't fully |
1951 | * stopped, i.e. as long as it remains up or remains in auto-start states. The use can reset the counter | |
1952 | * explicitly however via the usual "systemctl reset-failure" logic. */ | |
1953 | s->n_restarts ++; | |
1954 | s->flush_n_restarts = false; | |
1955 | ||
1956 | log_struct(LOG_INFO, | |
1957 | "MESSAGE_ID=" SD_MESSAGE_UNIT_RESTART_SCHEDULED_STR, | |
1958 | LOG_UNIT_ID(UNIT(s)), | |
f1c50bec | 1959 | LOG_UNIT_INVOCATION_ID(UNIT(s)), |
7a0019d3 LP |
1960 | LOG_UNIT_MESSAGE(UNIT(s), "Scheduled restart job, restart counter is at %u.", s->n_restarts), |
1961 | "N_RESTARTS=%u", s->n_restarts, | |
1962 | NULL); | |
1963 | ||
1964 | /* Notify clients about changed restart counter */ | |
1965 | unit_add_to_dbus_queue(UNIT(s)); | |
1966 | ||
a8bb2e65 LP |
1967 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
1968 | * it will be canceled as part of the service_stop() call that | |
1969 | * is executed as part of JOB_RESTART. */ | |
1970 | ||
034c6ed7 LP |
1971 | return; |
1972 | ||
1973 | fail: | |
f2341e0a | 1974 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, -r)); |
f42806df | 1975 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1976 | } |
1977 | ||
308d72dc | 1978 | static void service_enter_reload_by_notify(Service *s) { |
15d167f8 JW |
1979 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
1980 | int r; | |
1981 | ||
308d72dc LP |
1982 | assert(s); |
1983 | ||
36c16a7c | 1984 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_start_usec)); |
308d72dc | 1985 | service_set_state(s, SERVICE_RELOAD); |
15d167f8 JW |
1986 | |
1987 | /* service_enter_reload_by_notify is never called during a reload, thus no loops are possible. */ | |
1988 | r = manager_propagate_reload(UNIT(s)->manager, UNIT(s), JOB_FAIL, &error); | |
1989 | if (r < 0) | |
1990 | log_unit_warning(UNIT(s), "Failed to schedule propagation of reload: %s", bus_error_message(&error, -r)); | |
308d72dc LP |
1991 | } |
1992 | ||
034c6ed7 LP |
1993 | static void service_enter_reload(Service *s) { |
1994 | int r; | |
1995 | ||
1996 | assert(s); | |
1997 | ||
5e94833f | 1998 | service_unwatch_control_pid(s); |
95c906ae | 1999 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 2000 | |
117dcc57 ZJS |
2001 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
2002 | if (s->control_command) { | |
867b3b7d LP |
2003 | s->control_command_id = SERVICE_EXEC_RELOAD; |
2004 | ||
ecedd90f LP |
2005 | r = service_spawn(s, |
2006 | s->control_command, | |
21b2ce39 | 2007 | s->timeout_start_usec, |
1703fa41 | 2008 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL, |
ecedd90f LP |
2009 | &s->control_pid); |
2010 | if (r < 0) | |
034c6ed7 LP |
2011 | goto fail; |
2012 | ||
80876c20 LP |
2013 | service_set_state(s, SERVICE_RELOAD); |
2014 | } else | |
f42806df | 2015 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2016 | |
2017 | return; | |
2018 | ||
2019 | fail: | |
f2341e0a | 2020 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
2021 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2022 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2023 | } |
2024 | ||
f42806df | 2025 | static void service_run_next_control(Service *s) { |
36c16a7c | 2026 | usec_t timeout; |
034c6ed7 LP |
2027 | int r; |
2028 | ||
2029 | assert(s); | |
2030 | assert(s->control_command); | |
2031 | assert(s->control_command->command_next); | |
2032 | ||
34e9ba66 | 2033 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2034 | |
34e9ba66 | 2035 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2036 | service_unwatch_control_pid(s); |
2037 | ||
36c16a7c LP |
2038 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
2039 | timeout = s->timeout_start_usec; | |
2040 | else | |
2041 | timeout = s->timeout_stop_usec; | |
2042 | ||
ecedd90f LP |
2043 | r = service_spawn(s, |
2044 | s->control_command, | |
36c16a7c | 2045 | timeout, |
1703fa41 | 2046 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL| |
136dc4c4 LP |
2047 | (IN_SET(s->control_command_id, SERVICE_EXEC_START_PRE, SERVICE_EXEC_STOP_POST) ? EXEC_APPLY_TTY_STDIN : 0)| |
2048 | (IN_SET(s->control_command_id, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST) ? EXEC_SETENV_RESULT : 0), | |
ecedd90f LP |
2049 | &s->control_pid); |
2050 | if (r < 0) | |
034c6ed7 LP |
2051 | goto fail; |
2052 | ||
2053 | return; | |
2054 | ||
2055 | fail: | |
f2341e0a | 2056 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 2057 | |
c3fda31d | 2058 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_STOP)) |
f42806df | 2059 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2060 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2061 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2062 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2063 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2064 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2065 | } else |
f42806df | 2066 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2067 | } |
2068 | ||
f42806df | 2069 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2070 | pid_t pid; |
2071 | int r; | |
2072 | ||
2073 | assert(s); | |
867b3b7d LP |
2074 | assert(s->main_command); |
2075 | assert(s->main_command->command_next); | |
2076 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2077 | |
867b3b7d | 2078 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2079 | service_unwatch_main_pid(s); |
2080 | ||
ecedd90f LP |
2081 | r = service_spawn(s, |
2082 | s->main_command, | |
21b2ce39 | 2083 | s->timeout_start_usec, |
1703fa41 | 2084 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
2085 | &pid); |
2086 | if (r < 0) | |
34e9ba66 LP |
2087 | goto fail; |
2088 | ||
2089 | service_set_main_pid(s, pid); | |
2090 | ||
2091 | return; | |
2092 | ||
2093 | fail: | |
f2341e0a | 2094 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 2095 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2096 | } |
2097 | ||
87f0e418 LP |
2098 | static int service_start(Unit *u) { |
2099 | Service *s = SERVICE(u); | |
07299350 | 2100 | int r; |
5cb5a6ff LP |
2101 | |
2102 | assert(s); | |
2103 | ||
034c6ed7 LP |
2104 | /* We cannot fulfill this request right now, try again later |
2105 | * please! */ | |
a00973af LP |
2106 | if (IN_SET(s->state, |
2107 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2108 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
5cb5a6ff LP |
2109 | return -EAGAIN; |
2110 | ||
034c6ed7 | 2111 | /* Already on it! */ |
a00973af | 2112 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
2113 | return 0; |
2114 | ||
2e9d6c12 | 2115 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2116 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2117 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2118 | * service should be manually restarted, not started. We |
2119 | * simply return EAGAIN here, so that any start jobs stay | |
2120 | * queued, and assume that the auto restart timer will | |
2121 | * eventually trigger the restart. */ | |
2122 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2123 | return -EAGAIN; |
2e9d6c12 | 2124 | |
a00973af | 2125 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 2126 | |
07299350 LP |
2127 | /* Make sure we don't enter a busy loop of some kind. */ |
2128 | r = unit_start_limit_test(u); | |
2129 | if (r < 0) { | |
2130 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT_HIT, false); | |
2131 | return r; | |
2132 | } | |
2133 | ||
4b58153d LP |
2134 | r = unit_acquire_invocation_id(u); |
2135 | if (r < 0) | |
2136 | return r; | |
2137 | ||
f42806df LP |
2138 | s->result = SERVICE_SUCCESS; |
2139 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2140 | s->main_pid_known = false; |
6dfa5494 | 2141 | s->main_pid_alien = false; |
47342320 | 2142 | s->forbid_restart = false; |
906c06f6 | 2143 | s->reset_accounting = true; |
034c6ed7 | 2144 | |
a1e58e8e | 2145 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
2146 | s->status_errno = 0; |
2147 | ||
308d72dc LP |
2148 | s->notify_state = NOTIFY_UNKNOWN; |
2149 | ||
2787d83c M |
2150 | s->watchdog_override_enable = false; |
2151 | s->watchdog_override_usec = 0; | |
2152 | ||
7a0019d3 LP |
2153 | /* This is not an automatic restart? Flush the restart counter then */ |
2154 | if (s->flush_n_restarts) { | |
2155 | s->n_restarts = 0; | |
2156 | s->flush_n_restarts = false; | |
2157 | } | |
2158 | ||
034c6ed7 | 2159 | service_enter_start_pre(s); |
82a2b6bb | 2160 | return 1; |
5cb5a6ff LP |
2161 | } |
2162 | ||
87f0e418 LP |
2163 | static int service_stop(Unit *u) { |
2164 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2165 | |
2166 | assert(s); | |
2167 | ||
a509f0e6 | 2168 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2169 | s->forbid_restart = true; |
034c6ed7 | 2170 | |
e537352b | 2171 | /* Already on it */ |
a00973af LP |
2172 | if (IN_SET(s->state, |
2173 | SERVICE_STOP, SERVICE_STOP_SIGABRT, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
2174 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) | |
e537352b LP |
2175 | return 0; |
2176 | ||
f0c7b229 | 2177 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2178 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2179 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2180 | return 0; |
2181 | } | |
2182 | ||
3f6c78dc LP |
2183 | /* If there's already something running we go directly into |
2184 | * kill mode. */ | |
a00973af | 2185 | if (IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD)) { |
f42806df | 2186 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2187 | return 0; |
2188 | } | |
5cb5a6ff | 2189 | |
a00973af | 2190 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2191 | |
f42806df | 2192 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2193 | return 1; |
5cb5a6ff LP |
2194 | } |
2195 | ||
87f0e418 LP |
2196 | static int service_reload(Unit *u) { |
2197 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2198 | |
2199 | assert(s); | |
2200 | ||
80876c20 | 2201 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
2202 | |
2203 | service_enter_reload(s); | |
2d018ae2 | 2204 | return 1; |
5cb5a6ff LP |
2205 | } |
2206 | ||
44a6b1b6 | 2207 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2208 | Service *s = SERVICE(u); |
034c6ed7 LP |
2209 | |
2210 | assert(s); | |
2211 | ||
2212 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2213 | } | |
2214 | ||
e266c068 MS |
2215 | static unsigned service_exec_command_index(Unit *u, ServiceExecCommand id, ExecCommand *current) { |
2216 | Service *s = SERVICE(u); | |
2217 | unsigned idx = 0; | |
2218 | ExecCommand *first, *c; | |
2219 | ||
2220 | assert(s); | |
2221 | ||
2222 | first = s->exec_command[id]; | |
2223 | ||
2224 | /* Figure out where we are in the list by walking back to the beginning */ | |
2225 | for (c = current; c != first; c = c->command_prev) | |
2226 | idx++; | |
2227 | ||
2228 | return idx; | |
2229 | } | |
2230 | ||
2231 | static int service_serialize_exec_command(Unit *u, FILE *f, ExecCommand *command) { | |
2232 | Service *s = SERVICE(u); | |
2233 | ServiceExecCommand id; | |
2234 | unsigned idx; | |
2235 | const char *type; | |
2236 | char **arg; | |
e266c068 MS |
2237 | _cleanup_free_ char *args = NULL, *p = NULL; |
2238 | size_t allocated = 0, length = 0; | |
2239 | ||
2240 | assert(s); | |
2241 | assert(f); | |
2242 | ||
2243 | if (!command) | |
2244 | return 0; | |
2245 | ||
2246 | if (command == s->control_command) { | |
2247 | type = "control"; | |
2248 | id = s->control_command_id; | |
2249 | } else { | |
2250 | type = "main"; | |
2251 | id = SERVICE_EXEC_START; | |
2252 | } | |
2253 | ||
2254 | idx = service_exec_command_index(u, id, command); | |
2255 | ||
2256 | STRV_FOREACH(arg, command->argv) { | |
2257 | size_t n; | |
2258 | _cleanup_free_ char *e = NULL; | |
2259 | ||
2260 | e = xescape(*arg, WHITESPACE); | |
2261 | if (!e) | |
2262 | return -ENOMEM; | |
2263 | ||
2264 | n = strlen(e); | |
2265 | if (!GREEDY_REALLOC(args, allocated, length + 1 + n + 1)) | |
2266 | return -ENOMEM; | |
2267 | ||
2268 | if (length > 0) | |
2269 | args[length++] = ' '; | |
2270 | ||
2271 | memcpy(args + length, e, n); | |
2272 | length += n; | |
2273 | } | |
2274 | ||
2275 | if (!GREEDY_REALLOC(args, allocated, length + 1)) | |
2276 | return -ENOMEM; | |
2277 | args[length++] = 0; | |
2278 | ||
2279 | p = xescape(command->path, WHITESPACE); | |
2280 | if (!p) | |
2281 | return -ENOMEM; | |
2282 | ||
2283 | fprintf(f, "%s-command=%s %u %s %s\n", type, service_exec_command_to_string(id), idx, p, args); | |
2284 | ||
2285 | return 0; | |
2286 | } | |
2287 | ||
a16e1123 LP |
2288 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2289 | Service *s = SERVICE(u); | |
2339fc93 | 2290 | ServiceFDStore *fs; |
a34ceba6 | 2291 | int r; |
a16e1123 LP |
2292 | |
2293 | assert(u); | |
2294 | assert(f); | |
2295 | assert(fds); | |
2296 | ||
2297 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
2298 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
2299 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2300 | |
2301 | if (s->control_pid > 0) | |
f06db334 | 2302 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2303 | |
5925dd3c | 2304 | if (s->main_pid_known && s->main_pid > 0) |
ccd06097 | 2305 | unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 LP |
2306 | |
2307 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
de1d4f9b | 2308 | unit_serialize_item(u, f, "bus-name-good", yes_no(s->bus_name_good)); |
d8ccf5fd | 2309 | unit_serialize_item(u, f, "bus-name-owner", s->bus_name_owner); |
a16e1123 | 2310 | |
7a0019d3 | 2311 | unit_serialize_item_format(u, f, "n-restarts", "%u", s->n_restarts); |
7f923884 | 2312 | unit_serialize_item(u, f, "flush-n-restarts", yes_no(s->flush_n_restarts)); |
7a0019d3 | 2313 | |
a34ceba6 LP |
2314 | r = unit_serialize_item_escaped(u, f, "status-text", s->status_text); |
2315 | if (r < 0) | |
2316 | return r; | |
3a2776bc | 2317 | |
e266c068 MS |
2318 | service_serialize_exec_command(u, f, s->control_command); |
2319 | service_serialize_exec_command(u, f, s->main_command); | |
a16e1123 | 2320 | |
a34ceba6 LP |
2321 | r = unit_serialize_item_fd(u, f, fds, "stdin-fd", s->stdin_fd); |
2322 | if (r < 0) | |
2323 | return r; | |
2324 | r = unit_serialize_item_fd(u, f, fds, "stdout-fd", s->stdout_fd); | |
2325 | if (r < 0) | |
2326 | return r; | |
2327 | r = unit_serialize_item_fd(u, f, fds, "stderr-fd", s->stderr_fd); | |
2328 | if (r < 0) | |
2329 | return r; | |
e44da745 | 2330 | |
9dfb64f8 ZJS |
2331 | if (UNIT_ISSET(s->accept_socket)) { |
2332 | r = unit_serialize_item(u, f, "accept-socket", UNIT_DEREF(s->accept_socket)->id); | |
2333 | if (r < 0) | |
2334 | return r; | |
2335 | } | |
2336 | ||
a34ceba6 | 2337 | r = unit_serialize_item_fd(u, f, fds, "socket-fd", s->socket_fd); |
a34ceba6 LP |
2338 | if (r < 0) |
2339 | return r; | |
e44da745 | 2340 | |
2339fc93 | 2341 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2342 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2343 | int copy; |
2344 | ||
2345 | copy = fdset_put_dup(fds, fs->fd); | |
2346 | if (copy < 0) | |
2347 | return copy; | |
2348 | ||
8dd4c05b LP |
2349 | c = cescape(fs->fdname); |
2350 | ||
2351 | unit_serialize_item_format(u, f, "fd-store-fd", "%i %s", copy, strempty(c)); | |
2339fc93 LP |
2352 | } |
2353 | ||
ecdbca40 | 2354 | if (s->main_exec_status.pid > 0) { |
f06db334 LP |
2355 | unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2356 | dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2357 | dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2358 | |
799fd0fd | 2359 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
f06db334 LP |
2360 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2361 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2362 | } |
2363 | } | |
f06db334 | 2364 | |
36b693a6 | 2365 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); |
ecdbca40 | 2366 | |
a34ceba6 | 2367 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 2368 | |
2787d83c M |
2369 | if (s->watchdog_override_enable) |
2370 | unit_serialize_item_format(u, f, "watchdog-override-usec", USEC_FMT, s->watchdog_override_usec); | |
2371 | ||
a16e1123 LP |
2372 | return 0; |
2373 | } | |
2374 | ||
e266c068 MS |
2375 | static int service_deserialize_exec_command(Unit *u, const char *key, const char *value) { |
2376 | Service *s = SERVICE(u); | |
2377 | int r; | |
2378 | unsigned idx = 0, i; | |
2379 | bool control, found = false; | |
2380 | ServiceExecCommand id = _SERVICE_EXEC_COMMAND_INVALID; | |
2381 | ExecCommand *command = NULL; | |
6eeec374 | 2382 | _cleanup_free_ char *path = NULL; |
e266c068 MS |
2383 | _cleanup_strv_free_ char **argv = NULL; |
2384 | ||
2385 | enum ExecCommandState { | |
2386 | STATE_EXEC_COMMAND_TYPE, | |
2387 | STATE_EXEC_COMMAND_INDEX, | |
2388 | STATE_EXEC_COMMAND_PATH, | |
2389 | STATE_EXEC_COMMAND_ARGS, | |
2390 | _STATE_EXEC_COMMAND_MAX, | |
2391 | _STATE_EXEC_COMMAND_INVALID = -1, | |
2392 | } state; | |
2393 | ||
2394 | assert(s); | |
2395 | assert(key); | |
2396 | assert(value); | |
2397 | ||
2398 | control = streq(key, "control-command"); | |
2399 | ||
2400 | state = STATE_EXEC_COMMAND_TYPE; | |
2401 | ||
2402 | for (;;) { | |
2403 | _cleanup_free_ char *arg = NULL; | |
2404 | ||
2405 | r = extract_first_word(&value, &arg, NULL, EXTRACT_CUNESCAPE); | |
2406 | if (r == 0) | |
2407 | break; | |
2408 | else if (r < 0) | |
2409 | return r; | |
2410 | ||
2411 | switch (state) { | |
2412 | case STATE_EXEC_COMMAND_TYPE: | |
2413 | id = service_exec_command_from_string(arg); | |
2414 | if (id < 0) | |
2415 | return -EINVAL; | |
2416 | ||
2417 | state = STATE_EXEC_COMMAND_INDEX; | |
2418 | break; | |
2419 | case STATE_EXEC_COMMAND_INDEX: | |
2420 | r = safe_atou(arg, &idx); | |
2421 | if (r < 0) | |
2422 | return -EINVAL; | |
2423 | ||
2424 | state = STATE_EXEC_COMMAND_PATH; | |
2425 | break; | |
2426 | case STATE_EXEC_COMMAND_PATH: | |
2427 | path = arg; | |
2428 | arg = NULL; | |
2429 | state = STATE_EXEC_COMMAND_ARGS; | |
2430 | ||
2431 | if (!path_is_absolute(path)) | |
2432 | return -EINVAL; | |
2433 | break; | |
2434 | case STATE_EXEC_COMMAND_ARGS: | |
2435 | r = strv_extend(&argv, arg); | |
2436 | if (r < 0) | |
2437 | return -ENOMEM; | |
2438 | break; | |
2439 | default: | |
2440 | assert_not_reached("Unknown error at deserialization of exec command"); | |
2441 | break; | |
2442 | } | |
2443 | } | |
2444 | ||
2445 | if (state != STATE_EXEC_COMMAND_ARGS) | |
2446 | return -EINVAL; | |
2447 | ||
2448 | /* Let's check whether exec command on given offset matches data that we just deserialized */ | |
2449 | for (command = s->exec_command[id], i = 0; command; command = command->command_next, i++) { | |
2450 | if (i != idx) | |
2451 | continue; | |
2452 | ||
2453 | found = strv_equal(argv, command->argv) && streq(command->path, path); | |
2454 | break; | |
2455 | } | |
2456 | ||
2457 | if (!found) { | |
2458 | /* Command at the index we serialized is different, let's look for command that exactly | |
2459 | * matches but is on different index. If there is no such command we will not resume execution. */ | |
2460 | for (command = s->exec_command[id]; command; command = command->command_next) | |
2461 | if (strv_equal(command->argv, argv) && streq(command->path, path)) | |
2462 | break; | |
2463 | } | |
2464 | ||
2465 | if (command && control) | |
2466 | s->control_command = command; | |
2467 | else if (command) | |
2468 | s->main_command = command; | |
2469 | else | |
2470 | log_unit_warning(u, "Current command vanished from the unit file, execution of the command list won't be resumed."); | |
2471 | ||
2472 | return 0; | |
2473 | } | |
2474 | ||
a16e1123 LP |
2475 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { |
2476 | Service *s = SERVICE(u); | |
2339fc93 | 2477 | int r; |
a16e1123 LP |
2478 | |
2479 | assert(u); | |
2480 | assert(key); | |
2481 | assert(value); | |
2482 | assert(fds); | |
2483 | ||
2484 | if (streq(key, "state")) { | |
2485 | ServiceState state; | |
2486 | ||
117dcc57 ZJS |
2487 | state = service_state_from_string(value); |
2488 | if (state < 0) | |
f2341e0a | 2489 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2490 | else |
2491 | s->deserialized_state = state; | |
f42806df LP |
2492 | } else if (streq(key, "result")) { |
2493 | ServiceResult f; | |
2494 | ||
2495 | f = service_result_from_string(value); | |
2496 | if (f < 0) | |
f2341e0a | 2497 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2498 | else if (f != SERVICE_SUCCESS) |
2499 | s->result = f; | |
2500 | ||
2501 | } else if (streq(key, "reload-result")) { | |
2502 | ServiceResult f; | |
2503 | ||
2504 | f = service_result_from_string(value); | |
2505 | if (f < 0) | |
f2341e0a | 2506 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2507 | else if (f != SERVICE_SUCCESS) |
2508 | s->reload_result = f; | |
a16e1123 | 2509 | |
a16e1123 | 2510 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2511 | pid_t pid; |
a16e1123 | 2512 | |
e364ad06 | 2513 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2514 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2515 | else |
e55224ca | 2516 | s->control_pid = pid; |
a16e1123 | 2517 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2518 | pid_t pid; |
a16e1123 | 2519 | |
e364ad06 | 2520 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2521 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
7400b9d2 LP |
2522 | else { |
2523 | service_set_main_pid(s, pid); | |
2524 | unit_watch_pid(UNIT(s), pid); | |
2525 | } | |
a16e1123 LP |
2526 | } else if (streq(key, "main-pid-known")) { |
2527 | int b; | |
2528 | ||
117dcc57 ZJS |
2529 | b = parse_boolean(value); |
2530 | if (b < 0) | |
f2341e0a | 2531 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2532 | else |
2533 | s->main_pid_known = b; | |
de1d4f9b WF |
2534 | } else if (streq(key, "bus-name-good")) { |
2535 | int b; | |
2536 | ||
2537 | b = parse_boolean(value); | |
2538 | if (b < 0) | |
2539 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2540 | else | |
2541 | s->bus_name_good = b; | |
d8ccf5fd DM |
2542 | } else if (streq(key, "bus-name-owner")) { |
2543 | r = free_and_strdup(&s->bus_name_owner, value); | |
2544 | if (r < 0) | |
2545 | log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value); | |
3a2776bc LP |
2546 | } else if (streq(key, "status-text")) { |
2547 | char *t; | |
2548 | ||
f2341e0a LP |
2549 | r = cunescape(value, 0, &t); |
2550 | if (r < 0) | |
2551 | log_unit_debug_errno(u, r, "Failed to unescape status text: %s", value); | |
117dcc57 | 2552 | else { |
3a2776bc LP |
2553 | free(s->status_text); |
2554 | s->status_text = t; | |
2555 | } | |
2556 | ||
9dfb64f8 ZJS |
2557 | } else if (streq(key, "accept-socket")) { |
2558 | Unit *socket; | |
2559 | ||
2560 | r = manager_load_unit(u->manager, value, NULL, NULL, &socket); | |
2561 | if (r < 0) | |
2562 | log_unit_debug_errno(u, r, "Failed to load accept-socket unit: %s", value); | |
2563 | else { | |
2564 | unit_ref_set(&s->accept_socket, socket); | |
2565 | SOCKET(socket)->n_connections++; | |
2566 | } | |
2567 | ||
a16e1123 LP |
2568 | } else if (streq(key, "socket-fd")) { |
2569 | int fd; | |
2570 | ||
2571 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2572 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 2573 | else { |
574634bc | 2574 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
2575 | s->socket_fd = fdset_remove(fds, fd); |
2576 | } | |
2339fc93 | 2577 | } else if (streq(key, "fd-store-fd")) { |
8dd4c05b LP |
2578 | const char *fdv; |
2579 | size_t pf; | |
2339fc93 LP |
2580 | int fd; |
2581 | ||
8dd4c05b LP |
2582 | pf = strcspn(value, WHITESPACE); |
2583 | fdv = strndupa(value, pf); | |
2584 | ||
2585 | if (safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2586 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
2339fc93 | 2587 | else { |
8dd4c05b LP |
2588 | _cleanup_free_ char *t = NULL; |
2589 | const char *fdn; | |
2590 | ||
2591 | fdn = value + pf; | |
2592 | fdn += strspn(fdn, WHITESPACE); | |
2593 | (void) cunescape(fdn, 0, &t); | |
2594 | ||
2595 | r = service_add_fd_store(s, fd, t); | |
2339fc93 | 2596 | if (r < 0) |
f2341e0a | 2597 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); |
9021ff17 | 2598 | else |
2339fc93 LP |
2599 | fdset_remove(fds, fd); |
2600 | } | |
2601 | ||
ecdbca40 LP |
2602 | } else if (streq(key, "main-exec-status-pid")) { |
2603 | pid_t pid; | |
2604 | ||
e364ad06 | 2605 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2606 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
2607 | else |
2608 | s->main_exec_status.pid = pid; | |
2609 | } else if (streq(key, "main-exec-status-code")) { | |
2610 | int i; | |
2611 | ||
e364ad06 | 2612 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2613 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
2614 | else |
2615 | s->main_exec_status.code = i; | |
2616 | } else if (streq(key, "main-exec-status-status")) { | |
2617 | int i; | |
2618 | ||
e364ad06 | 2619 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2620 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
2621 | else |
2622 | s->main_exec_status.status = i; | |
799fd0fd LP |
2623 | } else if (streq(key, "main-exec-status-start")) |
2624 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
2625 | else if (streq(key, "main-exec-status-exit")) | |
2626 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
2627 | else if (streq(key, "watchdog-timestamp")) |
2628 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 2629 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2630 | int b; |
2631 | ||
2632 | b = parse_boolean(value); | |
2633 | if (b < 0) | |
f2341e0a | 2634 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
2635 | else |
2636 | s->forbid_restart = b; | |
a34ceba6 LP |
2637 | } else if (streq(key, "stdin-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 stdin-fd value: %s", value); | |
2642 | else { | |
2643 | asynchronous_close(s->stdin_fd); | |
2644 | s->stdin_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2645 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2646 | } |
2647 | } else if (streq(key, "stdout-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 stdout-fd value: %s", value); | |
2652 | else { | |
2653 | asynchronous_close(s->stdout_fd); | |
2654 | s->stdout_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2655 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2656 | } |
2657 | } else if (streq(key, "stderr-fd")) { | |
2658 | int fd; | |
2659 | ||
2660 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2661 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
2662 | else { | |
2663 | asynchronous_close(s->stderr_fd); | |
2664 | s->stderr_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2665 | s->exec_context.stdio_as_fds = true; |
a34ceba6 | 2666 | } |
2787d83c M |
2667 | } else if (streq(key, "watchdog-override-usec")) { |
2668 | usec_t watchdog_override_usec; | |
2669 | if (timestamp_deserialize(value, &watchdog_override_usec) < 0) | |
2670 | log_unit_debug(u, "Failed to parse watchdog_override_usec value: %s", value); | |
2671 | else { | |
2672 | s->watchdog_override_enable = true; | |
2673 | s->watchdog_override_usec = watchdog_override_usec; | |
2674 | } | |
e266c068 MS |
2675 | } else if (STR_IN_SET(key, "main-command", "control-command")) { |
2676 | r = service_deserialize_exec_command(u, key, value); | |
2677 | if (r < 0) | |
2678 | log_unit_debug_errno(u, r, "Failed to parse serialized command \"%s\": %m", value); | |
7a0019d3 LP |
2679 | |
2680 | } else if (streq(key, "n-restarts")) { | |
2681 | r = safe_atou(value, &s->n_restarts); | |
2682 | if (r < 0) | |
2683 | log_unit_debug_errno(u, r, "Failed to parse serialized restart counter '%s': %m", value); | |
2684 | ||
2685 | } else if (streq(key, "flush-n-restarts")) { | |
2686 | r = parse_boolean(value); | |
2687 | if (r < 0) | |
2688 | log_unit_debug_errno(u, r, "Failed to parse serialized flush restart counter setting '%s': %m", value); | |
2689 | else | |
2690 | s->flush_n_restarts = r; | |
c17ec25e | 2691 | } else |
f2341e0a | 2692 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
2693 | |
2694 | return 0; | |
2695 | } | |
2696 | ||
44a6b1b6 | 2697 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
2698 | const UnitActiveState *table; |
2699 | ||
87f0e418 | 2700 | assert(u); |
5cb5a6ff | 2701 | |
e056b01d LP |
2702 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
2703 | ||
2704 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
2705 | } |
2706 | ||
10a94420 LP |
2707 | static const char *service_sub_state_to_string(Unit *u) { |
2708 | assert(u); | |
2709 | ||
2710 | return service_state_to_string(SERVICE(u)->state); | |
2711 | } | |
2712 | ||
701cc384 LP |
2713 | static bool service_check_gc(Unit *u) { |
2714 | Service *s = SERVICE(u); | |
2715 | ||
2716 | assert(s); | |
2717 | ||
6d55002a LP |
2718 | /* Never clean up services that still have a process around, |
2719 | * even if the service is formally dead. */ | |
2720 | if (cgroup_good(s) > 0 || | |
2721 | main_pid_good(s) > 0 || | |
2722 | control_pid_good(s) > 0) | |
2723 | return true; | |
2724 | ||
6d55002a LP |
2725 | return false; |
2726 | } | |
2727 | ||
3a111838 MS |
2728 | static int service_retry_pid_file(Service *s) { |
2729 | int r; | |
2730 | ||
2731 | assert(s->pid_file); | |
2732 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2733 | ||
2734 | r = service_load_pid_file(s, false); | |
2735 | if (r < 0) | |
2736 | return r; | |
2737 | ||
2738 | service_unwatch_pid_file(s); | |
2739 | ||
f42806df | 2740 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
2741 | return 0; |
2742 | } | |
2743 | ||
2744 | static int service_watch_pid_file(Service *s) { | |
2745 | int r; | |
2746 | ||
f2341e0a | 2747 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 2748 | |
718db961 | 2749 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
2750 | if (r < 0) |
2751 | goto fail; | |
2752 | ||
2753 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 2754 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
2755 | service_retry_pid_file(s); |
2756 | ||
2757 | return 0; | |
2758 | fail: | |
f2341e0a | 2759 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
2760 | service_unwatch_pid_file(s); |
2761 | return r; | |
2762 | } | |
2763 | ||
2764 | static int service_demand_pid_file(Service *s) { | |
2765 | PathSpec *ps; | |
2766 | ||
2767 | assert(s->pid_file); | |
2768 | assert(!s->pid_file_pathspec); | |
2769 | ||
2770 | ps = new0(PathSpec, 1); | |
2771 | if (!ps) | |
2772 | return -ENOMEM; | |
2773 | ||
718db961 | 2774 | ps->unit = UNIT(s); |
3a111838 MS |
2775 | ps->path = strdup(s->pid_file); |
2776 | if (!ps->path) { | |
2777 | free(ps); | |
2778 | return -ENOMEM; | |
2779 | } | |
2780 | ||
2781 | path_kill_slashes(ps->path); | |
2782 | ||
2783 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2784 | * keep their PID file open all the time. */ | |
2785 | ps->type = PATH_MODIFIED; | |
2786 | ps->inotify_fd = -1; | |
2787 | ||
2788 | s->pid_file_pathspec = ps; | |
2789 | ||
2790 | return service_watch_pid_file(s); | |
2791 | } | |
2792 | ||
718db961 | 2793 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2794 | PathSpec *p = userdata; |
2795 | Service *s; | |
2796 | ||
2797 | assert(p); | |
2798 | ||
2799 | s = SERVICE(p->unit); | |
3a111838 MS |
2800 | |
2801 | assert(s); | |
2802 | assert(fd >= 0); | |
2803 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2804 | assert(s->pid_file_pathspec); | |
57020a3a | 2805 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2806 | |
f2341e0a | 2807 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 2808 | |
e14c2802 | 2809 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2810 | goto fail; |
2811 | ||
2812 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2813 | return 0; |
3a111838 MS |
2814 | |
2815 | if (service_watch_pid_file(s) < 0) | |
2816 | goto fail; | |
2817 | ||
718db961 LP |
2818 | return 0; |
2819 | ||
3a111838 MS |
2820 | fail: |
2821 | service_unwatch_pid_file(s); | |
f42806df | 2822 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2823 | return 0; |
3a111838 MS |
2824 | } |
2825 | ||
a911bb9a LP |
2826 | static void service_notify_cgroup_empty_event(Unit *u) { |
2827 | Service *s = SERVICE(u); | |
2828 | ||
2829 | assert(u); | |
2830 | ||
f2341e0a | 2831 | log_unit_debug(u, "cgroup is empty"); |
a911bb9a LP |
2832 | |
2833 | switch (s->state) { | |
2834 | ||
2835 | /* Waiting for SIGCHLD is usually more interesting, | |
2836 | * because it includes return codes/signals. Which is | |
2837 | * why we ignore the cgroup events for most cases, | |
2838 | * except when we don't know pid which to expect the | |
2839 | * SIGCHLD for. */ | |
2840 | ||
2841 | case SERVICE_START: | |
71e529fc | 2842 | if (s->type == SERVICE_NOTIFY) { |
3d474ef7 | 2843 | /* No chance of getting a ready notification anymore */ |
c3fda31d | 2844 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
71e529fc JW |
2845 | break; |
2846 | } | |
2847 | ||
2848 | /* Fall through */ | |
2849 | ||
2850 | case SERVICE_START_POST: | |
2851 | if (s->pid_file_pathspec) { | |
3d474ef7 | 2852 | /* Give up hoping for the daemon to write its PID file */ |
f2341e0a | 2853 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 2854 | |
a911bb9a LP |
2855 | service_unwatch_pid_file(s); |
2856 | if (s->state == SERVICE_START) | |
c3fda31d | 2857 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a | 2858 | else |
c35755fb | 2859 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a LP |
2860 | } |
2861 | break; | |
2862 | ||
2863 | case SERVICE_RUNNING: | |
2864 | /* service_enter_running() will figure out what to do */ | |
2865 | service_enter_running(s, SERVICE_SUCCESS); | |
2866 | break; | |
2867 | ||
db2cb23b | 2868 | case SERVICE_STOP_SIGABRT: |
a911bb9a LP |
2869 | case SERVICE_STOP_SIGTERM: |
2870 | case SERVICE_STOP_SIGKILL: | |
2871 | ||
2872 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2873 | service_enter_stop_post(s, SERVICE_SUCCESS); | |
2874 | ||
2875 | break; | |
2876 | ||
2877 | case SERVICE_STOP_POST: | |
2878 | case SERVICE_FINAL_SIGTERM: | |
2879 | case SERVICE_FINAL_SIGKILL: | |
2880 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2881 | service_enter_dead(s, SERVICE_SUCCESS, true); | |
2882 | ||
2883 | break; | |
2884 | ||
2885 | default: | |
2886 | ; | |
2887 | } | |
2888 | } | |
2889 | ||
87f0e418 LP |
2890 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2891 | Service *s = SERVICE(u); | |
f42806df | 2892 | ServiceResult f; |
5cb5a6ff LP |
2893 | |
2894 | assert(s); | |
034c6ed7 LP |
2895 | assert(pid >= 0); |
2896 | ||
1f0958f6 | 2897 | if (is_clean_exit(code, status, s->type == SERVICE_ONESHOT ? EXIT_CLEAN_COMMAND : EXIT_CLEAN_DAEMON, &s->success_status)) |
f42806df LP |
2898 | f = SERVICE_SUCCESS; |
2899 | else if (code == CLD_EXITED) | |
2900 | f = SERVICE_FAILURE_EXIT_CODE; | |
2901 | else if (code == CLD_KILLED) | |
2902 | f = SERVICE_FAILURE_SIGNAL; | |
2903 | else if (code == CLD_DUMPED) | |
2904 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2905 | else |
cfc4eb4c | 2906 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2907 | |
2908 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2909 | /* Forking services may occasionally move to a new PID. |
2910 | * As long as they update the PID file before exiting the old | |
2911 | * PID, they're fine. */ | |
5375410b | 2912 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2913 | return; |
034c6ed7 | 2914 | |
034c6ed7 | 2915 | s->main_pid = 0; |
6ea832a2 | 2916 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2917 | |
867b3b7d | 2918 | if (s->main_command) { |
fbeefb45 LP |
2919 | /* If this is not a forking service than the |
2920 | * main process got started and hence we copy | |
2921 | * the exit status so that it is recorded both | |
2922 | * as main and as control process exit | |
2923 | * status */ | |
2924 | ||
867b3b7d | 2925 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2926 | |
3ed0cd26 | 2927 | if (s->main_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 2928 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2929 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2930 | ||
2931 | /* If this is a forked process, then we should | |
2932 | * ignore the return value if this was | |
2933 | * configured for the starter process */ | |
2934 | ||
3ed0cd26 | 2935 | if (s->exec_command[SERVICE_EXEC_START]->flags & EXEC_COMMAND_IGNORE_FAILURE) |
fbeefb45 | 2936 | f = SERVICE_SUCCESS; |
034c6ed7 LP |
2937 | } |
2938 | ||
5368222d LP |
2939 | /* When this is a successful exit, let's log about the exit code on DEBUG level. If this is a failure |
2940 | * and the process exited on its own via exit(), then let's make this a NOTICE, under the assumption | |
2941 | * that the service already logged the reason at a higher log level on its own. However, if the service | |
2942 | * died due to a signal, then it most likely didn't say anything about any reason, hence let's raise | |
2943 | * our log level to WARNING then. */ | |
2944 | ||
2945 | log_struct(f == SERVICE_SUCCESS ? LOG_DEBUG : | |
2946 | (code == CLD_EXITED ? LOG_NOTICE : LOG_WARNING), | |
f2341e0a LP |
2947 | LOG_UNIT_MESSAGE(u, "Main process exited, code=%s, status=%i/%s", |
2948 | sigchld_code_to_string(code), status, | |
e2cc6eca LP |
2949 | strna(code == CLD_EXITED |
2950 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2951 | : signal_to_string(status))), | |
f2341e0a LP |
2952 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2953 | "EXIT_STATUS=%i", status, | |
ba360bb0 | 2954 | LOG_UNIT_ID(u), |
f1c50bec | 2955 | LOG_UNIT_INVOCATION_ID(u), |
f2341e0a | 2956 | NULL); |
f42806df | 2957 | |
a0fef983 | 2958 | if (s->result == SERVICE_SUCCESS) |
f42806df | 2959 | s->result = f; |
034c6ed7 | 2960 | |
867b3b7d LP |
2961 | if (s->main_command && |
2962 | s->main_command->command_next && | |
b58aeb70 | 2963 | s->type == SERVICE_ONESHOT && |
f42806df | 2964 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2965 | |
34e9ba66 LP |
2966 | /* There is another command to * |
2967 | * execute, so let's do that. */ | |
034c6ed7 | 2968 | |
f2341e0a | 2969 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 2970 | service_run_next_main(s); |
034c6ed7 | 2971 | |
34e9ba66 LP |
2972 | } else { |
2973 | ||
2974 | /* The service exited, so the service is officially | |
2975 | * gone. */ | |
867b3b7d | 2976 | s->main_command = NULL; |
34e9ba66 LP |
2977 | |
2978 | switch (s->state) { | |
2979 | ||
2980 | case SERVICE_START_POST: | |
2981 | case SERVICE_RELOAD: | |
2982 | case SERVICE_STOP: | |
2983 | /* Need to wait until the operation is | |
2984 | * done */ | |
c4653a4d | 2985 | break; |
7d55e835 | 2986 | |
34e9ba66 LP |
2987 | case SERVICE_START: |
2988 | if (s->type == SERVICE_ONESHOT) { | |
2989 | /* This was our main goal, so let's go on */ | |
f42806df | 2990 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2991 | service_enter_start_post(s); |
2992 | else | |
c3fda31d | 2993 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
34e9ba66 | 2994 | break; |
3d474ef7 JW |
2995 | } else if (s->type == SERVICE_NOTIFY) { |
2996 | /* Only enter running through a notification, so that the | |
2997 | * SERVICE_START state signifies that no ready notification | |
2998 | * has been received */ | |
2999 | if (f != SERVICE_SUCCESS) | |
c3fda31d | 3000 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3d474ef7 JW |
3001 | else if (!s->remain_after_exit) |
3002 | /* The service has never been active */ | |
c3fda31d | 3003 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3d474ef7 | 3004 | break; |
34e9ba66 | 3005 | } |
034c6ed7 | 3006 | |
bfba3256 LP |
3007 | /* Fall through */ |
3008 | ||
34e9ba66 | 3009 | case SERVICE_RUNNING: |
f42806df | 3010 | service_enter_running(s, f); |
34e9ba66 | 3011 | break; |
034c6ed7 | 3012 | |
db2cb23b | 3013 | case SERVICE_STOP_SIGABRT: |
34e9ba66 LP |
3014 | case SERVICE_STOP_SIGTERM: |
3015 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 3016 | |
34e9ba66 | 3017 | if (!control_pid_good(s)) |
f42806df | 3018 | service_enter_stop_post(s, f); |
5cb5a6ff | 3019 | |
34e9ba66 LP |
3020 | /* If there is still a control process, wait for that first */ |
3021 | break; | |
3022 | ||
bf108e55 LP |
3023 | case SERVICE_STOP_POST: |
3024 | case SERVICE_FINAL_SIGTERM: | |
3025 | case SERVICE_FINAL_SIGKILL: | |
3026 | ||
3027 | if (!control_pid_good(s)) | |
3028 | service_enter_dead(s, f, true); | |
3029 | break; | |
3030 | ||
34e9ba66 LP |
3031 | default: |
3032 | assert_not_reached("Uh, main process died at wrong time."); | |
3033 | } | |
034c6ed7 | 3034 | } |
5cb5a6ff | 3035 | |
034c6ed7 | 3036 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
3037 | s->control_pid = 0; |
3038 | ||
b708e7ce | 3039 | if (s->control_command) { |
8bb2d17d | 3040 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 3041 | |
3ed0cd26 | 3042 | if (s->control_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3043 | f = SERVICE_SUCCESS; |
b708e7ce LP |
3044 | } |
3045 | ||
f2341e0a LP |
3046 | log_unit_full(u, f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0, |
3047 | "Control process exited, code=%s status=%i", | |
3048 | sigchld_code_to_string(code), status); | |
f42806df | 3049 | |
a0fef983 | 3050 | if (s->result == SERVICE_SUCCESS) |
f42806df | 3051 | s->result = f; |
034c6ed7 | 3052 | |
88f3e0c9 LP |
3053 | /* Immediately get rid of the cgroup, so that the |
3054 | * kernel doesn't delay the cgroup empty messages for | |
3055 | * the service cgroup any longer than necessary */ | |
4ad49000 | 3056 | service_kill_control_processes(s); |
88f3e0c9 | 3057 | |
34e9ba66 LP |
3058 | if (s->control_command && |
3059 | s->control_command->command_next && | |
f42806df | 3060 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3061 | |
3062 | /* There is another command to * | |
3063 | * execute, so let's do that. */ | |
3064 | ||
f2341e0a | 3065 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 3066 | service_run_next_control(s); |
034c6ed7 | 3067 | |
80876c20 | 3068 | } else { |
034c6ed7 LP |
3069 | /* No further commands for this step, so let's |
3070 | * figure out what to do next */ | |
3071 | ||
a16e1123 LP |
3072 | s->control_command = NULL; |
3073 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3074 | ||
f2341e0a | 3075 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 3076 | |
034c6ed7 LP |
3077 | switch (s->state) { |
3078 | ||
3079 | case SERVICE_START_PRE: | |
f42806df | 3080 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3081 | service_enter_start(s); |
3082 | else | |
c3fda31d | 3083 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3084 | break; |
3085 | ||
3086 | case SERVICE_START: | |
bfba3256 LP |
3087 | if (s->type != SERVICE_FORKING) |
3088 | /* Maybe spurious event due to a reload that changed the type? */ | |
3089 | break; | |
034c6ed7 | 3090 | |
f42806df | 3091 | if (f != SERVICE_SUCCESS) { |
c3fda31d | 3092 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3a111838 MS |
3093 | break; |
3094 | } | |
034c6ed7 | 3095 | |
3a111838 | 3096 | if (s->pid_file) { |
f42806df LP |
3097 | bool has_start_post; |
3098 | int r; | |
3099 | ||
3a111838 MS |
3100 | /* Let's try to load the pid file here if we can. |
3101 | * The PID file might actually be created by a START_POST | |
3102 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
3103 | |
3104 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
3105 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
3106 | if (!has_start_post && r < 0) { |
3107 | r = service_demand_pid_file(s); | |
3108 | if (r < 0 || !cgroup_good(s)) | |
c3fda31d | 3109 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3a111838 MS |
3110 | break; |
3111 | } | |
034c6ed7 | 3112 | } else |
783e05d6 | 3113 | service_search_main_pid(s); |
034c6ed7 | 3114 | |
3a111838 | 3115 | service_enter_start_post(s); |
034c6ed7 LP |
3116 | break; |
3117 | ||
3118 | case SERVICE_START_POST: | |
f42806df | 3119 | if (f != SERVICE_SUCCESS) { |
ce359e98 | 3120 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
2096e009 | 3121 | break; |
034c6ed7 LP |
3122 | } |
3123 | ||
2096e009 | 3124 | if (s->pid_file) { |
f42806df LP |
3125 | int r; |
3126 | ||
3127 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3128 | if (r < 0) { |
3129 | r = service_demand_pid_file(s); | |
3130 | if (r < 0 || !cgroup_good(s)) | |
c35755fb | 3131 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
2096e009 MS |
3132 | break; |
3133 | } | |
3134 | } else | |
783e05d6 | 3135 | service_search_main_pid(s); |
2096e009 | 3136 | |
f42806df | 3137 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3138 | break; |
034c6ed7 LP |
3139 | |
3140 | case SERVICE_RELOAD: | |
7236ce6e ZJS |
3141 | if (f == SERVICE_SUCCESS) |
3142 | if (service_load_pid_file(s, true) < 0) | |
3143 | service_search_main_pid(s); | |
3185a36b | 3144 | |
f42806df LP |
3145 | s->reload_result = f; |
3146 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3147 | break; |
3148 | ||
3149 | case SERVICE_STOP: | |
f42806df | 3150 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3151 | break; |
3152 | ||
db2cb23b | 3153 | case SERVICE_STOP_SIGABRT: |
034c6ed7 LP |
3154 | case SERVICE_STOP_SIGTERM: |
3155 | case SERVICE_STOP_SIGKILL: | |
3156 | if (main_pid_good(s) <= 0) | |
f42806df | 3157 | service_enter_stop_post(s, f); |
034c6ed7 LP |
3158 | |
3159 | /* If there is still a service | |
3160 | * process around, wait until | |
3161 | * that one quit, too */ | |
3162 | break; | |
3163 | ||
3164 | case SERVICE_STOP_POST: | |
3165 | case SERVICE_FINAL_SIGTERM: | |
3166 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
3167 | if (main_pid_good(s) <= 0) |
3168 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
3169 | break; |
3170 | ||
3171 | default: | |
3172 | assert_not_reached("Uh, control process died at wrong time."); | |
3173 | } | |
3174 | } | |
8c47c732 | 3175 | } |
c4e2ceae LP |
3176 | |
3177 | /* Notify clients about changed exit status */ | |
3178 | unit_add_to_dbus_queue(u); | |
a911bb9a LP |
3179 | |
3180 | /* We got one SIGCHLD for the service, let's watch all | |
3181 | * processes that are now running of the service, and watch | |
3182 | * that. Among the PIDs we then watch will be children | |
3183 | * reassigned to us, which hopefully allows us to identify | |
3184 | * when all children are gone */ | |
3185 | unit_tidy_watch_pids(u, s->main_pid, s->control_pid); | |
3186 | unit_watch_all_pids(u); | |
3187 | ||
bbc85a16 EV |
3188 | /* If the PID set is empty now, then let's finish this off |
3189 | (On unified we use proper notifications) */ | |
c22800e4 | 3190 | if (cg_unified_controller(SYSTEMD_CGROUP_CONTROLLER) == 0 && set_isempty(u->pids)) |
a911bb9a | 3191 | service_notify_cgroup_empty_event(u); |
034c6ed7 LP |
3192 | } |
3193 | ||
718db961 LP |
3194 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
3195 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
3196 | |
3197 | assert(s); | |
718db961 | 3198 | assert(source == s->timer_event_source); |
034c6ed7 LP |
3199 | |
3200 | switch (s->state) { | |
3201 | ||
3202 | case SERVICE_START_PRE: | |
3203 | case SERVICE_START: | |
f2341e0a | 3204 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", s->state == SERVICE_START ? "Start" : "Start-pre"); |
c3fda31d | 3205 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
3206 | break; |
3207 | ||
034c6ed7 | 3208 | case SERVICE_START_POST: |
f2341e0a | 3209 | log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping."); |
ce359e98 | 3210 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3211 | break; |
3212 | ||
36c16a7c LP |
3213 | case SERVICE_RUNNING: |
3214 | log_unit_warning(UNIT(s), "Service reached runtime time limit. Stopping."); | |
3215 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); | |
3216 | break; | |
3217 | ||
e2f3b44c | 3218 | case SERVICE_RELOAD: |
089b64d5 | 3219 | log_unit_warning(UNIT(s), "Reload operation timed out. Killing reload process."); |
478b6192 | 3220 | service_kill_control_processes(s); |
f42806df LP |
3221 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3222 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3223 | break; |
3224 | ||
034c6ed7 | 3225 | case SERVICE_STOP: |
f2341e0a | 3226 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
f42806df | 3227 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3228 | break; |
3229 | ||
db2cb23b | 3230 | case SERVICE_STOP_SIGABRT: |
f2341e0a | 3231 | log_unit_warning(UNIT(s), "State 'stop-sigabrt' timed out. Terminating."); |
2ab2ab7b | 3232 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
db2cb23b UTL |
3233 | break; |
3234 | ||
034c6ed7 | 3235 | case SERVICE_STOP_SIGTERM: |
4819ff03 | 3236 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3237 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 3238 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3239 | } else { |
f2341e0a | 3240 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 3241 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3242 | } |
3243 | ||
034c6ed7 LP |
3244 | break; |
3245 | ||
3246 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3247 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3248 | * Must be something we cannot kill, so let's just be |
3249 | * weirded out and continue */ | |
3250 | ||
f2341e0a | 3251 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 3252 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3253 | break; |
3254 | ||
3255 | case SERVICE_STOP_POST: | |
f2341e0a | 3256 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); |
f42806df | 3257 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3258 | break; |
3259 | ||
3260 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 3261 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3262 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing."); |
f42806df | 3263 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3264 | } else { |
f2341e0a | 3265 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); |
f42806df | 3266 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3267 | } |
3268 | ||
034c6ed7 LP |
3269 | break; |
3270 | ||
3271 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 3272 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 3273 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3274 | break; |
3275 | ||
3276 | case SERVICE_AUTO_RESTART: | |
f2341e0a | 3277 | log_unit_info(UNIT(s), |
ef417cfd | 3278 | s->restart_usec > 0 ? |
f2341e0a LP |
3279 | "Service hold-off time over, scheduling restart." : |
3280 | "Service has no hold-off time, scheduling restart."); | |
034c6ed7 LP |
3281 | service_enter_restart(s); |
3282 | break; | |
3283 | ||
3284 | default: | |
3285 | assert_not_reached("Timeout at wrong time."); | |
3286 | } | |
718db961 LP |
3287 | |
3288 | return 0; | |
3289 | } | |
3290 | ||
3291 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
3292 | Service *s = SERVICE(userdata); | |
a7850c7d | 3293 | char t[FORMAT_TIMESPAN_MAX]; |
2787d83c | 3294 | usec_t watchdog_usec; |
718db961 LP |
3295 | |
3296 | assert(s); | |
3297 | assert(source == s->watchdog_event_source); | |
3298 | ||
2787d83c M |
3299 | watchdog_usec = service_get_watchdog_usec(s); |
3300 | ||
f2341e0a | 3301 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", |
2787d83c | 3302 | format_timespan(t, sizeof(t), watchdog_usec, 1)); |
8bb2d17d | 3303 | |
db2cb23b | 3304 | service_enter_signal(s, SERVICE_STOP_SIGABRT, SERVICE_FAILURE_WATCHDOG); |
842129f5 | 3305 | |
718db961 | 3306 | return 0; |
5cb5a6ff LP |
3307 | } |
3308 | ||
a354329f | 3309 | static void service_notify_message(Unit *u, pid_t pid, char **tags, FDSet *fds) { |
8c47c732 | 3310 | Service *s = SERVICE(u); |
308d72dc | 3311 | _cleanup_free_ char *cc = NULL; |
30b5275a | 3312 | bool notify_dbus = false; |
308d72dc | 3313 | const char *e; |
8c47c732 LP |
3314 | |
3315 | assert(u); | |
3316 | ||
308d72dc | 3317 | cc = strv_join(tags, ", "); |
da13d4d2 | 3318 | |
c952c6ec | 3319 | if (s->notify_access == NOTIFY_NONE) { |
f2341e0a | 3320 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
c952c6ec | 3321 | return; |
34959677 | 3322 | } else if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { |
336c6e46 | 3323 | if (s->main_pid != 0) |
f2341e0a | 3324 | 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 | 3325 | else |
6375bd20 JW |
3326 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for main PID which is currently not known", pid); |
3327 | return; | |
3328 | } else if (s->notify_access == NOTIFY_EXEC && pid != s->main_pid && pid != s->control_pid) { | |
3329 | if (s->main_pid != 0 && s->control_pid != 0) | |
3330 | 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, | |
3331 | pid, s->main_pid, s->control_pid); | |
3332 | else if (s->main_pid != 0) | |
3333 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT, pid, s->main_pid); | |
3334 | else if (s->control_pid != 0) | |
3335 | log_unit_warning(u, "Got notification message from PID "PID_FMT", but reception only permitted for control PID "PID_FMT, pid, s->control_pid); | |
3336 | else | |
3337 | 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 | 3338 | return; |
34959677 TG |
3339 | } else |
3340 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", pid, isempty(cc) ? "n/a" : cc); | |
c952c6ec | 3341 | |
8c47c732 | 3342 | /* Interpret MAINPID= */ |
28849dba | 3343 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 3344 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
28849dba | 3345 | if (parse_pid(e, &pid) < 0) |
f2341e0a | 3346 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message: %s", e); |
3c9512c7 JW |
3347 | else if (pid == s->control_pid) |
3348 | log_unit_warning(u, "A control process cannot also be the main process"); | |
df0ff127 | 3349 | else if (pid == getpid_cached() || pid == 1) |
6939ce64 | 3350 | log_unit_warning(u, "Service manager can't be main process, ignoring sd_notify() MAINPID= field"); |
8c47c732 | 3351 | else { |
5925dd3c | 3352 | service_set_main_pid(s, pid); |
7400b9d2 | 3353 | unit_watch_pid(UNIT(s), pid); |
30b5275a | 3354 | notify_dbus = true; |
8c47c732 LP |
3355 | } |
3356 | } | |
3357 | ||
308d72dc LP |
3358 | /* Interpret RELOADING= */ |
3359 | if (strv_find(tags, "RELOADING=1")) { | |
3360 | ||
308d72dc LP |
3361 | s->notify_state = NOTIFY_RELOADING; |
3362 | ||
3363 | if (s->state == SERVICE_RUNNING) | |
3364 | service_enter_reload_by_notify(s); | |
3365 | ||
3366 | notify_dbus = true; | |
3367 | } | |
3368 | ||
8c47c732 | 3369 | /* Interpret READY= */ |
308d72dc LP |
3370 | if (strv_find(tags, "READY=1")) { |
3371 | ||
308d72dc LP |
3372 | s->notify_state = NOTIFY_READY; |
3373 | ||
3374 | /* Type=notify services inform us about completed | |
3375 | * initialization with READY=1 */ | |
3376 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
3377 | service_enter_start_post(s); | |
3378 | ||
3379 | /* Sending READY=1 while we are reloading informs us | |
3380 | * that the reloading is complete */ | |
3381 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
3382 | service_enter_running(s, SERVICE_SUCCESS); | |
3383 | ||
3384 | notify_dbus = true; | |
3385 | } | |
3386 | ||
3387 | /* Interpret STOPPING= */ | |
3388 | if (strv_find(tags, "STOPPING=1")) { | |
3389 | ||
308d72dc LP |
3390 | s->notify_state = NOTIFY_STOPPING; |
3391 | ||
3392 | if (s->state == SERVICE_RUNNING) | |
3393 | service_enter_stop_by_notify(s); | |
3394 | ||
30b5275a | 3395 | notify_dbus = true; |
8c47c732 LP |
3396 | } |
3397 | ||
3398 | /* Interpret STATUS= */ | |
28849dba | 3399 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 3400 | if (e) { |
28849dba | 3401 | _cleanup_free_ char *t = NULL; |
8c47c732 | 3402 | |
28849dba LP |
3403 | if (!isempty(e)) { |
3404 | if (!utf8_is_valid(e)) | |
f2341e0a | 3405 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean."); |
28849dba | 3406 | else { |
28849dba LP |
3407 | t = strdup(e); |
3408 | if (!t) | |
3409 | log_oom(); | |
3a2776bc | 3410 | } |
28849dba | 3411 | } |
8c47c732 | 3412 | |
30b5275a | 3413 | if (!streq_ptr(s->status_text, t)) { |
28849dba | 3414 | |
3b319885 | 3415 | free_and_replace(s->status_text, t); |
28849dba | 3416 | |
30b5275a | 3417 | notify_dbus = true; |
28849dba | 3418 | } |
8c47c732 | 3419 | } |
842129f5 | 3420 | |
4774e357 | 3421 | /* Interpret ERRNO= */ |
28849dba | 3422 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
3423 | if (e) { |
3424 | int status_errno; | |
3425 | ||
28849dba | 3426 | if (safe_atoi(e, &status_errno) < 0 || status_errno < 0) |
f2341e0a | 3427 | log_unit_warning(u, "Failed to parse ERRNO= field in notification message: %s", e); |
4774e357 | 3428 | else { |
4774e357 MAA |
3429 | if (s->status_errno != status_errno) { |
3430 | s->status_errno = status_errno; | |
3431 | notify_dbus = true; | |
3432 | } | |
3433 | } | |
3434 | } | |
3435 | ||
6f285378 | 3436 | /* Interpret WATCHDOG= */ |
1f6b4113 | 3437 | if (strv_find(tags, "WATCHDOG=1")) |
842129f5 | 3438 | service_reset_watchdog(s); |
c4e2ceae | 3439 | |
8dd4c05b LP |
3440 | if (strv_find(tags, "FDSTORE=1")) { |
3441 | const char *name; | |
3442 | ||
3443 | name = strv_find_startswith(tags, "FDNAME="); | |
3444 | if (name && !fdname_is_valid(name)) { | |
3445 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
3446 | name = NULL; | |
3447 | } | |
3448 | ||
3449 | service_add_fd_store_set(s, fds, name); | |
3450 | } | |
a354329f | 3451 | |
2787d83c M |
3452 | e = strv_find_startswith(tags, "WATCHDOG_USEC="); |
3453 | if (e) { | |
3454 | usec_t watchdog_override_usec; | |
3455 | if (safe_atou64(e, &watchdog_override_usec) < 0) | |
3456 | log_unit_warning(u, "Failed to parse WATCHDOG_USEC=%s", e); | |
3457 | else | |
3458 | service_reset_watchdog_timeout(s, watchdog_override_usec); | |
3459 | } | |
3460 | ||
c4e2ceae | 3461 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
3462 | if (notify_dbus) |
3463 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
3464 | } |
3465 | ||
7a7821c8 | 3466 | static int service_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 3467 | Service *s = SERVICE(u); |
7a7821c8 | 3468 | uint64_t t; |
68db7a3b ZJS |
3469 | int r; |
3470 | ||
3471 | if (!s->timer_event_source) | |
3472 | return 0; | |
3473 | ||
7a7821c8 | 3474 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
3475 | if (r < 0) |
3476 | return r; | |
7a7821c8 LP |
3477 | if (t == USEC_INFINITY) |
3478 | return 0; | |
68db7a3b | 3479 | |
7a7821c8 | 3480 | *timeout = t; |
68db7a3b ZJS |
3481 | return 1; |
3482 | } | |
3483 | ||
05e343b7 LP |
3484 | static void service_bus_name_owner_change( |
3485 | Unit *u, | |
3486 | const char *name, | |
3487 | const char *old_owner, | |
3488 | const char *new_owner) { | |
3489 | ||
3490 | Service *s = SERVICE(u); | |
718db961 | 3491 | int r; |
05e343b7 LP |
3492 | |
3493 | assert(s); | |
3494 | assert(name); | |
3495 | ||
3496 | assert(streq(s->bus_name, name)); | |
3497 | assert(old_owner || new_owner); | |
3498 | ||
3499 | if (old_owner && new_owner) | |
f2341e0a | 3500 | log_unit_debug(u, "D-Bus name %s changed owner from %s to %s", name, old_owner, new_owner); |
05e343b7 | 3501 | else if (old_owner) |
f2341e0a | 3502 | log_unit_debug(u, "D-Bus name %s no longer registered by %s", name, old_owner); |
05e343b7 | 3503 | else |
f2341e0a | 3504 | log_unit_debug(u, "D-Bus name %s now registered by %s", name, new_owner); |
05e343b7 LP |
3505 | |
3506 | s->bus_name_good = !!new_owner; | |
3507 | ||
d8ccf5fd DM |
3508 | /* Track the current owner, so we can reconstruct changes after a daemon reload */ |
3509 | r = free_and_strdup(&s->bus_name_owner, new_owner); | |
3510 | if (r < 0) { | |
3511 | log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner); | |
3512 | return; | |
3513 | } | |
3514 | ||
05e343b7 LP |
3515 | if (s->type == SERVICE_DBUS) { |
3516 | ||
3517 | /* service_enter_running() will figure out what to | |
3518 | * do */ | |
3519 | if (s->state == SERVICE_RUNNING) | |
f42806df | 3520 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
3521 | else if (s->state == SERVICE_START && new_owner) |
3522 | service_enter_start_post(s); | |
3523 | ||
3524 | } else if (new_owner && | |
3525 | s->main_pid <= 0 && | |
3526 | (s->state == SERVICE_START || | |
3527 | s->state == SERVICE_START_POST || | |
3528 | s->state == SERVICE_RUNNING || | |
3529 | s->state == SERVICE_RELOAD)) { | |
3530 | ||
4afd3348 | 3531 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
718db961 | 3532 | pid_t pid; |
05e343b7 | 3533 | |
718db961 | 3534 | /* Try to acquire PID from bus service */ |
05e343b7 | 3535 | |
056f95d0 | 3536 | r = sd_bus_get_name_creds(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
3537 | if (r >= 0) |
3538 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 | 3539 | if (r >= 0) { |
7c102d60 | 3540 | log_unit_debug(u, "D-Bus name %s is now owned by process " PID_FMT, name, pid); |
05e343b7 | 3541 | |
718db961 LP |
3542 | service_set_main_pid(s, pid); |
3543 | unit_watch_pid(UNIT(s), pid); | |
3544 | } | |
7400b9d2 | 3545 | } |
05e343b7 LP |
3546 | } |
3547 | ||
16115b0a | 3548 | int service_set_socket_fd(Service *s, int fd, Socket *sock, bool selinux_context_net) { |
79a98c60 LP |
3549 | _cleanup_free_ char *peer = NULL; |
3550 | int r; | |
57020a3a | 3551 | |
4f2d528d LP |
3552 | assert(s); |
3553 | assert(fd >= 0); | |
3554 | ||
7f2fbbff LP |
3555 | /* This is called by the socket code when instantiating a new service for a stream socket and the socket needs |
3556 | * to be configured. We take ownership of the passed fd on success. */ | |
4f2d528d | 3557 | |
1124fe6f | 3558 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
3559 | return -EINVAL; |
3560 | ||
3561 | if (s->socket_fd >= 0) | |
3562 | return -EBUSY; | |
3563 | ||
3564 | if (s->state != SERVICE_DEAD) | |
3565 | return -EAGAIN; | |
3566 | ||
366b7db4 | 3567 | if (getpeername_pretty(fd, true, &peer) >= 0) { |
79a98c60 LP |
3568 | |
3569 | if (UNIT(s)->description) { | |
3570 | _cleanup_free_ char *a; | |
3571 | ||
605405c6 | 3572 | a = strjoin(UNIT(s)->description, " (", peer, ")"); |
79a98c60 LP |
3573 | if (!a) |
3574 | return -ENOMEM; | |
3575 | ||
3576 | r = unit_set_description(UNIT(s), a); | |
3577 | } else | |
3578 | r = unit_set_description(UNIT(s), peer); | |
3579 | ||
3580 | if (r < 0) | |
3581 | return r; | |
3582 | } | |
3583 | ||
7f2fbbff LP |
3584 | r = unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); |
3585 | if (r < 0) | |
3586 | return r; | |
3587 | ||
4f2d528d | 3588 | s->socket_fd = fd; |
16115b0a | 3589 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 3590 | |
57020a3a | 3591 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
7f2fbbff | 3592 | return 0; |
4f2d528d LP |
3593 | } |
3594 | ||
fdf20a31 | 3595 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
3596 | Service *s = SERVICE(u); |
3597 | ||
3598 | assert(s); | |
3599 | ||
fdf20a31 | 3600 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
3601 | service_set_state(s, SERVICE_DEAD); |
3602 | ||
f42806df LP |
3603 | s->result = SERVICE_SUCCESS; |
3604 | s->reload_result = SERVICE_SUCCESS; | |
7a0019d3 LP |
3605 | s->n_restarts = 0; |
3606 | s->flush_n_restarts = false; | |
5632e374 LP |
3607 | } |
3608 | ||
718db961 | 3609 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 3610 | Service *s = SERVICE(u); |
41efeaec | 3611 | |
814cc562 | 3612 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
3613 | } |
3614 | ||
291d565a LP |
3615 | static int service_main_pid(Unit *u) { |
3616 | Service *s = SERVICE(u); | |
3617 | ||
3618 | assert(s); | |
3619 | ||
3620 | return s->main_pid; | |
3621 | } | |
3622 | ||
3623 | static int service_control_pid(Unit *u) { | |
3624 | Service *s = SERVICE(u); | |
3625 | ||
3626 | assert(s); | |
3627 | ||
3628 | return s->control_pid; | |
3629 | } | |
3630 | ||
94f04347 | 3631 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
525ee6f4 LP |
3632 | [SERVICE_RESTART_NO] = "no", |
3633 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 3634 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 3635 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 3636 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 3637 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 3638 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
3639 | }; |
3640 | ||
3641 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
3642 | ||
3643 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 3644 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 3645 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 3646 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 3647 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
3648 | [SERVICE_NOTIFY] = "notify", |
3649 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
3650 | }; |
3651 | ||
3652 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
3653 | ||
e537352b | 3654 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
3655 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
3656 | [SERVICE_EXEC_START] = "ExecStart", | |
3657 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
3658 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
3659 | [SERVICE_EXEC_STOP] = "ExecStop", | |
3660 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
3661 | }; | |
3662 | ||
3663 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
3664 | ||
308d72dc LP |
3665 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
3666 | [NOTIFY_UNKNOWN] = "unknown", | |
3667 | [NOTIFY_READY] = "ready", | |
3668 | [NOTIFY_RELOADING] = "reloading", | |
3669 | [NOTIFY_STOPPING] = "stopping", | |
3670 | }; | |
3671 | ||
3672 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
3673 | ||
f42806df LP |
3674 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
3675 | [SERVICE_SUCCESS] = "success", | |
3676 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
c35755fb | 3677 | [SERVICE_FAILURE_PROTOCOL] = "protocol", |
f42806df LP |
3678 | [SERVICE_FAILURE_TIMEOUT] = "timeout", |
3679 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
3680 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 3681 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a | 3682 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
07299350 | 3683 | [SERVICE_FAILURE_START_LIMIT_HIT] = "start-limit-hit", |
f42806df LP |
3684 | }; |
3685 | ||
3686 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
3687 | ||
87f0e418 | 3688 | const UnitVTable service_vtable = { |
7d17cfbc | 3689 | .object_size = sizeof(Service), |
718db961 LP |
3690 | .exec_context_offset = offsetof(Service, exec_context), |
3691 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
3692 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 3693 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
29206d46 | 3694 | .dynamic_creds_offset = offsetof(Service, dynamic_creds), |
3ef63c31 | 3695 | |
f975e971 LP |
3696 | .sections = |
3697 | "Unit\0" | |
3698 | "Service\0" | |
3699 | "Install\0", | |
4ad49000 | 3700 | .private_section = "Service", |
71645aca | 3701 | |
034c6ed7 LP |
3702 | .init = service_init, |
3703 | .done = service_done, | |
a16e1123 | 3704 | .load = service_load, |
a354329f | 3705 | .release_resources = service_release_resources, |
a16e1123 LP |
3706 | |
3707 | .coldplug = service_coldplug, | |
034c6ed7 | 3708 | |
5cb5a6ff LP |
3709 | .dump = service_dump, |
3710 | ||
3711 | .start = service_start, | |
3712 | .stop = service_stop, | |
3713 | .reload = service_reload, | |
3714 | ||
034c6ed7 LP |
3715 | .can_reload = service_can_reload, |
3716 | ||
8a0867d6 LP |
3717 | .kill = service_kill, |
3718 | ||
a16e1123 LP |
3719 | .serialize = service_serialize, |
3720 | .deserialize_item = service_deserialize_item, | |
3721 | ||
5cb5a6ff | 3722 | .active_state = service_active_state, |
10a94420 | 3723 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 3724 | |
701cc384 | 3725 | .check_gc = service_check_gc, |
701cc384 | 3726 | |
034c6ed7 | 3727 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 3728 | |
fdf20a31 | 3729 | .reset_failed = service_reset_failed, |
5632e374 | 3730 | |
4ad49000 | 3731 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 3732 | .notify_message = service_notify_message, |
8e274523 | 3733 | |
291d565a LP |
3734 | .main_pid = service_main_pid, |
3735 | .control_pid = service_control_pid, | |
3736 | ||
05e343b7 | 3737 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 3738 | |
718db961 | 3739 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
3740 | .bus_set_property = bus_service_set_property, |
3741 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 3742 | |
68db7a3b | 3743 | .get_timeout = service_get_timeout, |
718db961 LP |
3744 | .can_transient = true, |
3745 | ||
c6918296 MS |
3746 | .status_message_formats = { |
3747 | .starting_stopping = { | |
3748 | [0] = "Starting %s...", | |
3749 | [1] = "Stopping %s...", | |
3750 | }, | |
3751 | .finished_start_job = { | |
3752 | [JOB_DONE] = "Started %s.", | |
3753 | [JOB_FAILED] = "Failed to start %s.", | |
c6918296 MS |
3754 | }, |
3755 | .finished_stop_job = { | |
3756 | [JOB_DONE] = "Stopped %s.", | |
3757 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 MS |
3758 | }, |
3759 | }, | |
5cb5a6ff | 3760 | }; |