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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5cb5a6ff | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
5cb5a6ff | 22 | #include <errno.h> |
034c6ed7 | 23 | #include <signal.h> |
2c4104f0 LP |
24 | #include <dirent.h> |
25 | #include <unistd.h> | |
5cb5a6ff | 26 | |
574634bc | 27 | #include "async.h" |
4b939747 | 28 | #include "manager.h" |
87f0e418 | 29 | #include "unit.h" |
5cb5a6ff LP |
30 | #include "service.h" |
31 | #include "load-fragment.h" | |
32 | #include "load-dropin.h" | |
034c6ed7 | 33 | #include "log.h" |
2c4104f0 | 34 | #include "strv.h" |
9e2f7c11 | 35 | #include "unit-name.h" |
41f9172f | 36 | #include "unit-printf.h" |
4139c1b2 | 37 | #include "dbus-service.h" |
514f4ef5 | 38 | #include "special.h" |
9a57c629 | 39 | #include "exit-status.h" |
f6a6225e | 40 | #include "def.h" |
9eb977db | 41 | #include "path-util.h" |
f6a6225e | 42 | #include "util.h" |
7f110ff9 | 43 | #include "utf8.h" |
4d1a6904 | 44 | #include "env-util.h" |
a5c32cff | 45 | #include "fileio.h" |
718db961 LP |
46 | #include "bus-error.h" |
47 | #include "bus-util.h" | |
034c6ed7 | 48 | |
acbb0225 | 49 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 LP |
50 | [SERVICE_DEAD] = UNIT_INACTIVE, |
51 | [SERVICE_START_PRE] = UNIT_ACTIVATING, | |
52 | [SERVICE_START] = UNIT_ACTIVATING, | |
53 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
54 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 55 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 56 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 LP |
57 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
58 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, | |
59 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
60 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
61 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
62 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 63 | [SERVICE_FAILED] = UNIT_FAILED, |
6124958c | 64 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING |
034c6ed7 | 65 | }; |
5cb5a6ff | 66 | |
e056b01d LP |
67 | /* For Type=idle we never want to delay any other jobs, hence we |
68 | * consider idle jobs active as soon as we start working on them */ | |
69 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
70 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
71 | [SERVICE_START_PRE] = UNIT_ACTIVE, | |
72 | [SERVICE_START] = UNIT_ACTIVE, | |
73 | [SERVICE_START_POST] = UNIT_ACTIVE, | |
74 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
75 | [SERVICE_EXITED] = UNIT_ACTIVE, | |
76 | [SERVICE_RELOAD] = UNIT_RELOADING, | |
77 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
78 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, | |
79 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
80 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
81 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
82 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
83 | [SERVICE_FAILED] = UNIT_FAILED, | |
84 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING | |
85 | }; | |
86 | ||
718db961 LP |
87 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
88 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); | |
89 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); | |
90 | ||
842129f5 | 91 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
308d72dc | 92 | static void service_enter_reload_by_notify(Service *s); |
842129f5 | 93 | |
a16e1123 LP |
94 | static void service_init(Unit *u) { |
95 | Service *s = SERVICE(u); | |
96 | ||
97 | assert(u); | |
ac155bb8 | 98 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 99 | |
1f19a534 OS |
100 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
101 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
102 | s->restart_usec = u->manager->default_restart_usec; | |
0b86feac | 103 | s->type = _SERVICE_TYPE_INVALID; |
a16e1123 | 104 | s->socket_fd = -1; |
3185a36b | 105 | s->guess_main_pid = true; |
a16e1123 | 106 | |
085afe36 | 107 | RATELIMIT_INIT(s->start_limit, u->manager->default_start_limit_interval, u->manager->default_start_limit_burst); |
a16e1123 LP |
108 | |
109 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
110 | } | |
111 | ||
5e94833f LP |
112 | static void service_unwatch_control_pid(Service *s) { |
113 | assert(s); | |
114 | ||
115 | if (s->control_pid <= 0) | |
116 | return; | |
117 | ||
118 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
119 | s->control_pid = 0; | |
120 | } | |
121 | ||
122 | static void service_unwatch_main_pid(Service *s) { | |
123 | assert(s); | |
124 | ||
125 | if (s->main_pid <= 0) | |
126 | return; | |
127 | ||
128 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
129 | s->main_pid = 0; | |
130 | } | |
131 | ||
3e52541e MS |
132 | static void service_unwatch_pid_file(Service *s) { |
133 | if (!s->pid_file_pathspec) | |
134 | return; | |
135 | ||
8bb2d17d | 136 | log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path); |
718db961 | 137 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e MS |
138 | path_spec_done(s->pid_file_pathspec); |
139 | free(s->pid_file_pathspec); | |
140 | s->pid_file_pathspec = NULL; | |
141 | } | |
142 | ||
5925dd3c | 143 | static int service_set_main_pid(Service *s, pid_t pid) { |
e55224ca LP |
144 | pid_t ppid; |
145 | ||
5925dd3c LP |
146 | assert(s); |
147 | ||
148 | if (pid <= 1) | |
149 | return -EINVAL; | |
150 | ||
151 | if (pid == getpid()) | |
152 | return -EINVAL; | |
153 | ||
7400b9d2 LP |
154 | if (s->main_pid == pid && s->main_pid_known) |
155 | return 0; | |
156 | ||
157 | if (s->main_pid != pid) { | |
158 | service_unwatch_main_pid(s); | |
159 | exec_status_start(&s->main_exec_status, pid); | |
160 | } | |
41efeaec | 161 | |
6dfa5494 LP |
162 | s->main_pid = pid; |
163 | s->main_pid_known = true; | |
164 | ||
165 | if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) { | |
8bb2d17d | 166 | log_warning_unit(UNIT(s)->id, "%s: Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.", UNIT(s)->id, pid); |
6dfa5494 LP |
167 | s->main_pid_alien = true; |
168 | } else | |
169 | s->main_pid_alien = false; | |
5925dd3c LP |
170 | |
171 | return 0; | |
172 | } | |
173 | ||
4f2d528d LP |
174 | static void service_close_socket_fd(Service *s) { |
175 | assert(s); | |
176 | ||
574634bc | 177 | s->socket_fd = asynchronous_close(s->socket_fd); |
4f2d528d LP |
178 | } |
179 | ||
6cf6bbc2 LP |
180 | static void service_connection_unref(Service *s) { |
181 | assert(s); | |
182 | ||
9444b1f2 | 183 | if (!UNIT_ISSET(s->accept_socket)) |
6cf6bbc2 LP |
184 | return; |
185 | ||
57020a3a LP |
186 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); |
187 | unit_ref_unset(&s->accept_socket); | |
6cf6bbc2 LP |
188 | } |
189 | ||
a6927d7f MO |
190 | static void service_stop_watchdog(Service *s) { |
191 | assert(s); | |
192 | ||
718db961 | 193 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
842129f5 | 194 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
195 | } |
196 | ||
842129f5 | 197 | static void service_start_watchdog(Service *s) { |
bb242b7b MO |
198 | int r; |
199 | ||
200 | assert(s); | |
201 | ||
842129f5 | 202 | if (s->watchdog_usec <= 0) |
bb242b7b MO |
203 | return; |
204 | ||
718db961 LP |
205 | if (s->watchdog_event_source) { |
206 | r = sd_event_source_set_time(s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec); | |
207 | if (r < 0) { | |
208 | log_warning_unit(UNIT(s)->id, "%s failed to reset watchdog timer: %s", UNIT(s)->id, strerror(-r)); | |
209 | return; | |
210 | } | |
211 | ||
842129f5 | 212 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 213 | } else { |
6a0f1f6d LP |
214 | r = sd_event_add_time( |
215 | UNIT(s)->manager->event, | |
216 | &s->watchdog_event_source, | |
217 | CLOCK_MONOTONIC, | |
218 | s->watchdog_timestamp.monotonic + s->watchdog_usec, 0, | |
219 | service_dispatch_watchdog, s); | |
c4ef3317 LP |
220 | if (r < 0) { |
221 | log_warning_unit(UNIT(s)->id, "%s failed to add watchdog timer: %s", UNIT(s)->id, strerror(-r)); | |
222 | return; | |
223 | } | |
224 | ||
225 | /* Let's process everything else which might be a sign | |
226 | * of living before we consider a service died. */ | |
227 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
228 | } | |
718db961 | 229 | |
bb242b7b | 230 | if (r < 0) |
842129f5 | 231 | log_warning_unit(UNIT(s)->id, "%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r)); |
bb242b7b MO |
232 | } |
233 | ||
a6927d7f MO |
234 | static void service_reset_watchdog(Service *s) { |
235 | assert(s); | |
236 | ||
237 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 238 | service_start_watchdog(s); |
a6927d7f MO |
239 | } |
240 | ||
87f0e418 LP |
241 | static void service_done(Unit *u) { |
242 | Service *s = SERVICE(u); | |
44d8db9e LP |
243 | |
244 | assert(s); | |
245 | ||
246 | free(s->pid_file); | |
247 | s->pid_file = NULL; | |
248 | ||
8c47c732 LP |
249 | free(s->status_text); |
250 | s->status_text = NULL; | |
251 | ||
efe6e7d3 MO |
252 | free(s->reboot_arg); |
253 | s->reboot_arg = NULL; | |
254 | ||
613b411c | 255 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); |
e537352b | 256 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 257 | s->control_command = NULL; |
867b3b7d | 258 | s->main_command = NULL; |
44d8db9e | 259 | |
37520c1b LP |
260 | exit_status_set_free(&s->restart_prevent_status); |
261 | exit_status_set_free(&s->restart_force_status); | |
262 | exit_status_set_free(&s->success_status); | |
96342de6 | 263 | |
44d8db9e LP |
264 | /* This will leak a process, but at least no memory or any of |
265 | * our resources */ | |
5e94833f LP |
266 | service_unwatch_main_pid(s); |
267 | service_unwatch_control_pid(s); | |
3e52541e | 268 | service_unwatch_pid_file(s); |
44d8db9e | 269 | |
05e343b7 | 270 | if (s->bus_name) { |
ac155bb8 | 271 | unit_unwatch_bus_name(u, s->bus_name); |
05e343b7 LP |
272 | free(s->bus_name); |
273 | s->bus_name = NULL; | |
274 | } | |
275 | ||
4f2d528d | 276 | service_close_socket_fd(s); |
6cf6bbc2 | 277 | service_connection_unref(s); |
4f2d528d | 278 | |
57020a3a | 279 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 280 | |
bb242b7b MO |
281 | service_stop_watchdog(s); |
282 | ||
718db961 LP |
283 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
284 | } | |
285 | ||
286 | static int service_arm_timer(Service *s, usec_t usec) { | |
287 | int r; | |
288 | ||
289 | assert(s); | |
290 | ||
718db961 LP |
291 | if (s->timer_event_source) { |
292 | r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec); | |
293 | if (r < 0) | |
294 | return r; | |
295 | ||
296 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
297 | } | |
298 | ||
6a0f1f6d LP |
299 | return sd_event_add_time( |
300 | UNIT(s)->manager->event, | |
301 | &s->timer_event_source, | |
302 | CLOCK_MONOTONIC, | |
303 | now(CLOCK_MONOTONIC) + usec, 0, | |
304 | service_dispatch_timer, s); | |
44d8db9e LP |
305 | } |
306 | ||
243b1432 LP |
307 | static int service_verify(Service *s) { |
308 | assert(s); | |
309 | ||
1124fe6f | 310 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
311 | return 0; |
312 | ||
96fb8242 LP |
313 | if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP]) { |
314 | log_error_unit(UNIT(s)->id, "%s lacks both ExecStart= and ExecStop= setting. Refusing.", UNIT(s)->id); | |
243b1432 LP |
315 | return -EINVAL; |
316 | } | |
317 | ||
96fb8242 LP |
318 | if (s->type != SERVICE_ONESHOT && !s->exec_command[SERVICE_EXEC_START]) { |
319 | log_error_unit(UNIT(s)->id, "%s has no ExecStart= setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id); | |
320 | return -EINVAL; | |
321 | } | |
322 | ||
323 | if (!s->remain_after_exit && !s->exec_command[SERVICE_EXEC_START]) { | |
324 | log_error_unit(UNIT(s)->id, "%s has no ExecStart= setting, which is only allowed for RemainAfterExit=yes services. Refusing.", UNIT(s)->id); | |
325 | return -EINVAL; | |
326 | } | |
327 | ||
328 | if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) { | |
329 | log_error_unit(UNIT(s)->id, "%s has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id); | |
6cf6bbc2 LP |
330 | return -EINVAL; |
331 | } | |
332 | ||
b0693d30 | 333 | if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { |
37520c1b LP |
334 | log_error_unit(UNIT(s)->id, "%s has Restart= setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id); |
335 | return -EINVAL; | |
336 | } | |
337 | ||
55ebf98c | 338 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) { |
37520c1b | 339 | log_error_unit(UNIT(s)->id, "%s has RestartForceStatus= set, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id); |
b0693d30 MW |
340 | return -EINVAL; |
341 | } | |
342 | ||
05e343b7 | 343 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
ebc2259d | 344 | log_error_unit(UNIT(s)->id, "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id); |
4d0e5dbd LP |
345 | return -EINVAL; |
346 | } | |
347 | ||
7e2668c6 | 348 | if (s->bus_name && s->type != SERVICE_DBUS) |
ebc2259d | 349 | log_warning_unit(UNIT(s)->id, "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id); |
7e2668c6 | 350 | |
ebc2259d LP |
351 | if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) { |
352 | log_error_unit(UNIT(s)->id, "%s has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing.", UNIT(s)->id); | |
05e343b7 LP |
353 | return -EINVAL; |
354 | } | |
355 | ||
243b1432 LP |
356 | return 0; |
357 | } | |
358 | ||
a40eb732 LP |
359 | static int service_add_default_dependencies(Service *s) { |
360 | int r; | |
361 | ||
362 | assert(s); | |
363 | ||
364 | /* Add a number of automatic dependencies useful for the | |
365 | * majority of services. */ | |
366 | ||
367 | /* First, pull in base system */ | |
8bb2d17d | 368 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true); |
fccd44ec KS |
369 | if (r < 0) |
370 | return r; | |
a40eb732 LP |
371 | |
372 | /* Second, activate normal shutdown */ | |
8bb2d17d | 373 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
117dcc57 | 374 | return r; |
a40eb732 LP |
375 | } |
376 | ||
4dfc092a LP |
377 | static void service_fix_output(Service *s) { |
378 | assert(s); | |
379 | ||
380 | /* If nothing has been explicitly configured, patch default | |
381 | * output in. If input is socket/tty we avoid this however, | |
382 | * since in that case we want output to default to the same | |
383 | * place as we read input from. */ | |
384 | ||
385 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
386 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
387 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 388 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
389 | |
390 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
391 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 392 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
393 | } |
394 | ||
e537352b | 395 | static int service_load(Unit *u) { |
e537352b | 396 | Service *s = SERVICE(u); |
8bb2d17d | 397 | int r; |
e537352b LP |
398 | |
399 | assert(s); | |
1e2e8133 | 400 | |
5cb5a6ff | 401 | /* Load a .service file */ |
c2756a68 LP |
402 | r = unit_load_fragment(u); |
403 | if (r < 0) | |
5cb5a6ff LP |
404 | return r; |
405 | ||
23a177ef | 406 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 407 | if (u->load_state == UNIT_STUB) |
23a177ef | 408 | return -ENOENT; |
034c6ed7 | 409 | |
23a177ef | 410 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 411 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
412 | |
413 | /* We were able to load something, then let's add in | |
414 | * the dropin directories. */ | |
415 | r = unit_load_dropin(u); | |
416 | if (r < 0) | |
417 | return r; | |
418 | ||
96fb8242 LP |
419 | if (s->type == _SERVICE_TYPE_INVALID) { |
420 | /* Figure out a type automatically */ | |
421 | if (s->bus_name) | |
422 | s->type = SERVICE_DBUS; | |
423 | else if (s->exec_command[SERVICE_EXEC_START]) | |
424 | s->type = SERVICE_SIMPLE; | |
425 | else | |
426 | s->type = SERVICE_ONESHOT; | |
427 | } | |
0b86feac | 428 | |
d568a335 MS |
429 | /* Oneshot services have disabled start timeout by default */ |
430 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
431 | s->timeout_start_usec = 0; | |
98709151 | 432 | |
4e2b0f9b LP |
433 | service_fix_output(s); |
434 | ||
598459ce LP |
435 | r = unit_patch_contexts(u); |
436 | if (r < 0) | |
437 | return r; | |
438 | ||
117dcc57 ZJS |
439 | r = unit_add_exec_dependencies(u, &s->exec_context); |
440 | if (r < 0) | |
23a177ef LP |
441 | return r; |
442 | ||
598459ce | 443 | r = unit_add_default_slice(u, &s->cgroup_context); |
a016b922 LP |
444 | if (r < 0) |
445 | return r; | |
446 | ||
c952c6ec LP |
447 | if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) |
448 | s->notify_access = NOTIFY_MAIN; | |
a40eb732 | 449 | |
02c4ef9c LP |
450 | if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) |
451 | s->notify_access = NOTIFY_MAIN; | |
452 | ||
598459ce LP |
453 | if (s->bus_name) { |
454 | r = unit_watch_bus_name(u, s->bus_name); | |
117dcc57 | 455 | if (r < 0) |
a40eb732 | 456 | return r; |
117dcc57 | 457 | } |
e06c73cc | 458 | |
598459ce LP |
459 | if (u->default_dependencies) { |
460 | r = service_add_default_dependencies(s); | |
461 | if (r < 0) | |
817e224b | 462 | |
598459ce LP |
463 | return r; |
464 | } | |
8e274523 LP |
465 | } |
466 | ||
243b1432 | 467 | return service_verify(s); |
034c6ed7 LP |
468 | } |
469 | ||
87f0e418 | 470 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 471 | ServiceExecCommand c; |
87f0e418 | 472 | Service *s = SERVICE(u); |
47be870b | 473 | const char *prefix2; |
5cb5a6ff LP |
474 | |
475 | assert(s); | |
476 | ||
4c940960 LP |
477 | prefix = strempty(prefix); |
478 | prefix2 = strappenda(prefix, "\t"); | |
44d8db9e | 479 | |
5cb5a6ff | 480 | fprintf(f, |
81a2b7ce | 481 | "%sService State: %s\n" |
f42806df LP |
482 | "%sResult: %s\n" |
483 | "%sReload Result: %s\n" | |
81a2b7ce | 484 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 485 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 486 | "%sRemainAfterExit: %s\n" |
3185a36b | 487 | "%sGuessMainPID: %s\n" |
c952c6ec | 488 | "%sType: %s\n" |
2cf3143a | 489 | "%sRestart: %s\n" |
308d72dc LP |
490 | "%sNotifyAccess: %s\n" |
491 | "%sNotifyState: %s\n", | |
81a2b7ce | 492 | prefix, service_state_to_string(s->state), |
f42806df LP |
493 | prefix, service_result_to_string(s->result), |
494 | prefix, service_result_to_string(s->reload_result), | |
81a2b7ce | 495 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 496 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 497 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 498 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 499 | prefix, service_type_to_string(s->type), |
2cf3143a | 500 | prefix, service_restart_to_string(s->restart), |
308d72dc LP |
501 | prefix, notify_access_to_string(s->notify_access), |
502 | prefix, notify_state_to_string(s->notify_state)); | |
5cb5a6ff | 503 | |
70123e68 LP |
504 | if (s->control_pid > 0) |
505 | fprintf(f, | |
ccd06097 ZJS |
506 | "%sControl PID: "PID_FMT"\n", |
507 | prefix, s->control_pid); | |
70123e68 LP |
508 | |
509 | if (s->main_pid > 0) | |
510 | fprintf(f, | |
ccd06097 | 511 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
512 | "%sMain PID Known: %s\n" |
513 | "%sMain PID Alien: %s\n", | |
ccd06097 | 514 | prefix, s->main_pid, |
6dfa5494 LP |
515 | prefix, yes_no(s->main_pid_known), |
516 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 517 | |
034c6ed7 LP |
518 | if (s->pid_file) |
519 | fprintf(f, | |
520 | "%sPIDFile: %s\n", | |
521 | prefix, s->pid_file); | |
522 | ||
05e343b7 LP |
523 | if (s->bus_name) |
524 | fprintf(f, | |
525 | "%sBusName: %s\n" | |
526 | "%sBus Name Good: %s\n", | |
527 | prefix, s->bus_name, | |
528 | prefix, yes_no(s->bus_name_good)); | |
529 | ||
4819ff03 | 530 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
531 | exec_context_dump(&s->exec_context, f, prefix); |
532 | ||
e537352b | 533 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 534 | |
44d8db9e LP |
535 | if (!s->exec_command[c]) |
536 | continue; | |
537 | ||
40d50879 | 538 | fprintf(f, "%s-> %s:\n", |
94f04347 | 539 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
540 | |
541 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 542 | } |
44d8db9e | 543 | |
07459bb6 | 544 | #ifdef HAVE_SYSV_COMPAT |
2c4104f0 LP |
545 | if (s->sysv_start_priority >= 0) |
546 | fprintf(f, | |
9fff8a1f LP |
547 | "%sSysVStartPriority: %i\n", |
548 | prefix, s->sysv_start_priority); | |
07459bb6 | 549 | #endif |
23a177ef | 550 | |
8c47c732 LP |
551 | if (s->status_text) |
552 | fprintf(f, "%sStatus Text: %s\n", | |
553 | prefix, s->status_text); | |
5cb5a6ff LP |
554 | } |
555 | ||
c5419d42 | 556 | static int service_load_pid_file(Service *s, bool may_warn) { |
7fd1b19b | 557 | _cleanup_free_ char *k = NULL; |
034c6ed7 | 558 | int r; |
5925dd3c | 559 | pid_t pid; |
034c6ed7 LP |
560 | |
561 | assert(s); | |
562 | ||
034c6ed7 | 563 | if (!s->pid_file) |
13230d5d | 564 | return -ENOENT; |
034c6ed7 | 565 | |
117dcc57 ZJS |
566 | r = read_one_line_file(s->pid_file, &k); |
567 | if (r < 0) { | |
c5419d42 | 568 | if (may_warn) |
8bb2d17d | 569 | log_info_unit(UNIT(s)->id, "PID file %s not readable (yet?) after %s.", s->pid_file, service_state_to_string(s->state)); |
034c6ed7 | 570 | return r; |
5375410b | 571 | } |
034c6ed7 | 572 | |
5925dd3c | 573 | r = parse_pid(k, &pid); |
bc41f93e ZJS |
574 | if (r < 0) { |
575 | if (may_warn) | |
8bb2d17d | 576 | log_info_unit(UNIT(s)->id, "Failed to read PID from file %s: %s", s->pid_file, strerror(-r)); |
5925dd3c | 577 | return r; |
bc41f93e | 578 | } |
406eaf93 | 579 | |
9f5650ae | 580 | if (!pid_is_alive(pid)) { |
c5419d42 | 581 | if (may_warn) |
9f5650ae | 582 | log_info_unit(UNIT(s)->id, "PID "PID_FMT" read from file %s does not exist or is a zombie.", pid, s->pid_file); |
e10c9985 YS |
583 | return -ESRCH; |
584 | } | |
585 | ||
db01f8b3 MS |
586 | if (s->main_pid_known) { |
587 | if (pid == s->main_pid) | |
588 | return 0; | |
589 | ||
8bb2d17d LP |
590 | log_debug_unit(UNIT(s)->id, "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
591 | ||
db01f8b3 MS |
592 | service_unwatch_main_pid(s); |
593 | s->main_pid_known = false; | |
3a111838 | 594 | } else |
8bb2d17d | 595 | log_debug_unit(UNIT(s)->id, "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 596 | |
117dcc57 ZJS |
597 | r = service_set_main_pid(s, pid); |
598 | if (r < 0) | |
16f6025e LP |
599 | return r; |
600 | ||
117dcc57 | 601 | r = unit_watch_pid(UNIT(s), pid); |
bc41f93e | 602 | if (r < 0) { |
5925dd3c | 603 | /* FIXME: we need to do something here */ |
8bb2d17d | 604 | log_warning_unit(UNIT(s)->id, "Failed to watch PID "PID_FMT" from service %s", pid, UNIT(s)->id); |
5925dd3c | 605 | return r; |
bc41f93e | 606 | } |
034c6ed7 LP |
607 | |
608 | return 0; | |
609 | } | |
610 | ||
4fbf50b3 LP |
611 | static int service_search_main_pid(Service *s) { |
612 | pid_t pid; | |
613 | int r; | |
614 | ||
615 | assert(s); | |
616 | ||
3185a36b LP |
617 | /* If we know it anyway, don't ever fallback to unreliable |
618 | * heuristics */ | |
4fbf50b3 LP |
619 | if (s->main_pid_known) |
620 | return 0; | |
621 | ||
3185a36b LP |
622 | if (!s->guess_main_pid) |
623 | return 0; | |
624 | ||
4fbf50b3 LP |
625 | assert(s->main_pid <= 0); |
626 | ||
4ad49000 | 627 | pid = unit_search_main_pid(UNIT(s)); |
117dcc57 | 628 | if (pid <= 0) |
4fbf50b3 LP |
629 | return -ENOENT; |
630 | ||
8bb2d17d | 631 | log_debug_unit(UNIT(s)->id, "Main PID guessed: "PID_FMT, pid); |
117dcc57 ZJS |
632 | r = service_set_main_pid(s, pid); |
633 | if (r < 0) | |
4fbf50b3 LP |
634 | return r; |
635 | ||
117dcc57 | 636 | r = unit_watch_pid(UNIT(s), pid); |
8bb2d17d | 637 | if (r < 0) { |
4fbf50b3 | 638 | /* FIXME: we need to do something here */ |
8bb2d17d LP |
639 | log_warning_unit(UNIT(s)->id, "Failed to watch PID "PID_FMT" from service %s", pid, UNIT(s)->id); |
640 | return r; | |
641 | } | |
642 | ||
643 | return 0; | |
4fbf50b3 LP |
644 | } |
645 | ||
034c6ed7 LP |
646 | static void service_set_state(Service *s, ServiceState state) { |
647 | ServiceState old_state; | |
e056b01d | 648 | const UnitActiveState *table; |
842129f5 | 649 | |
5cb5a6ff LP |
650 | assert(s); |
651 | ||
e056b01d LP |
652 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
653 | ||
034c6ed7 | 654 | old_state = s->state; |
5cb5a6ff | 655 | s->state = state; |
034c6ed7 | 656 | |
3a111838 MS |
657 | service_unwatch_pid_file(s); |
658 | ||
842129f5 LP |
659 | if (!IN_SET(state, |
660 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
661 | SERVICE_RELOAD, | |
bf108e55 LP |
662 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, |
663 | SERVICE_STOP_POST, | |
842129f5 LP |
664 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
665 | SERVICE_AUTO_RESTART)) | |
718db961 | 666 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 667 | |
842129f5 LP |
668 | if (!IN_SET(state, |
669 | SERVICE_START, SERVICE_START_POST, | |
670 | SERVICE_RUNNING, SERVICE_RELOAD, | |
bf108e55 LP |
671 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, |
672 | SERVICE_STOP_POST, | |
673 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
5e94833f | 674 | service_unwatch_main_pid(s); |
867b3b7d LP |
675 | s->main_command = NULL; |
676 | } | |
034c6ed7 | 677 | |
842129f5 LP |
678 | if (!IN_SET(state, |
679 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
680 | SERVICE_RELOAD, | |
bf108e55 LP |
681 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, |
682 | SERVICE_STOP_POST, | |
842129f5 | 683 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 684 | service_unwatch_control_pid(s); |
034c6ed7 | 685 | s->control_command = NULL; |
a16e1123 | 686 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 687 | } |
034c6ed7 | 688 | |
a911bb9a LP |
689 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
690 | unit_unwatch_all_pids(UNIT(s)); | |
691 | ||
842129f5 LP |
692 | if (!IN_SET(state, |
693 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
694 | SERVICE_RUNNING, SERVICE_RELOAD, | |
695 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
696 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && | |
1124fe6f | 697 | !(state == SERVICE_DEAD && UNIT(s)->job)) { |
4f2d528d | 698 | service_close_socket_fd(s); |
6cf6bbc2 LP |
699 | service_connection_unref(s); |
700 | } | |
4f2d528d | 701 | |
7596e9e1 | 702 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
703 | service_stop_watchdog(s); |
704 | ||
f6023656 LP |
705 | /* For the inactive states unit_notify() will trim the cgroup, |
706 | * but for exit we have to do that ourselves... */ | |
1124fe6f | 707 | if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0) |
4ad49000 | 708 | unit_destroy_cgroup(UNIT(s)); |
f6023656 | 709 | |
9cd86184 OB |
710 | /* For remain_after_exit services, let's see if we can "release" the |
711 | * hold on the console, since unit_notify() only does that in case of | |
712 | * change of state */ | |
f49650ce LP |
713 | if (state == SERVICE_EXITED && |
714 | s->remain_after_exit && | |
9cd86184 | 715 | UNIT(s)->manager->n_on_console > 0) { |
f49650ce LP |
716 | |
717 | ExecContext *ec; | |
718 | ||
719 | ec = unit_get_exec_context(UNIT(s)); | |
9cd86184 OB |
720 | if (ec && exec_context_may_touch_console(ec)) { |
721 | Manager *m = UNIT(s)->manager; | |
722 | ||
723 | m->n_on_console --; | |
724 | if (m->n_on_console == 0) | |
725 | /* unset no_console_output flag, since the console is free */ | |
726 | m->no_console_output = false; | |
727 | } | |
728 | } | |
729 | ||
e537352b | 730 | if (old_state != state) |
842129f5 | 731 | log_debug_unit(UNIT(s)->id, "%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 732 | |
e056b01d | 733 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
f42806df | 734 | s->reload_result = SERVICE_SUCCESS; |
034c6ed7 LP |
735 | } |
736 | ||
a16e1123 LP |
737 | static int service_coldplug(Unit *u) { |
738 | Service *s = SERVICE(u); | |
739 | int r; | |
740 | ||
741 | assert(s); | |
742 | assert(s->state == SERVICE_DEAD); | |
743 | ||
744 | if (s->deserialized_state != s->state) { | |
745 | ||
bf108e55 LP |
746 | if (IN_SET(s->deserialized_state, |
747 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
748 | SERVICE_RELOAD, | |
749 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, | |
750 | SERVICE_STOP_POST, | |
751 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
92c1622e LP |
752 | |
753 | usec_t k; | |
6c12b52e | 754 | |
bf108e55 | 755 | k = IN_SET(s->deserialized_state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD) ? s->timeout_start_usec : s->timeout_stop_usec; |
e558336f | 756 | |
92c1622e LP |
757 | /* For the start/stop timeouts 0 means off */ |
758 | if (k > 0) { | |
759 | r = service_arm_timer(s, k); | |
36697dc0 | 760 | if (r < 0) |
e558336f LP |
761 | return r; |
762 | } | |
763 | } | |
a16e1123 | 764 | |
92c1622e LP |
765 | if (s->deserialized_state == SERVICE_AUTO_RESTART) { |
766 | ||
767 | /* The restart timeouts 0 means immediately */ | |
768 | r = service_arm_timer(s, s->restart_usec); | |
769 | if (r < 0) | |
770 | return r; | |
771 | } | |
772 | ||
9f5650ae | 773 | if (pid_is_unwaited(s->main_pid) && |
bf108e55 LP |
774 | ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) || |
775 | IN_SET(s->deserialized_state, | |
776 | SERVICE_START, SERVICE_START_POST, | |
777 | SERVICE_RUNNING, SERVICE_RELOAD, | |
778 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, | |
779 | SERVICE_STOP_POST, | |
780 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { | |
781 | r = unit_watch_pid(UNIT(s), s->main_pid); | |
782 | if (r < 0) | |
783 | return r; | |
784 | } | |
a16e1123 | 785 | |
9f5650ae | 786 | if (pid_is_unwaited(s->control_pid) && |
bf108e55 LP |
787 | IN_SET(s->deserialized_state, |
788 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
789 | SERVICE_RELOAD, | |
790 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, | |
791 | SERVICE_STOP_POST, | |
792 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
793 | r = unit_watch_pid(UNIT(s), s->control_pid); | |
794 | if (r < 0) | |
795 | return r; | |
796 | } | |
a16e1123 | 797 | |
a911bb9a LP |
798 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
799 | unit_watch_all_pids(UNIT(s)); | |
800 | ||
842129f5 LP |
801 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
802 | service_start_watchdog(s); | |
bb242b7b | 803 | |
a16e1123 LP |
804 | service_set_state(s, s->deserialized_state); |
805 | } | |
92c1622e | 806 | |
a16e1123 LP |
807 | return 0; |
808 | } | |
809 | ||
44d8db9e LP |
810 | static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { |
811 | Iterator i; | |
812 | int r; | |
813 | int *rfds = NULL; | |
814 | unsigned rn_fds = 0; | |
57020a3a | 815 | Unit *u; |
44d8db9e LP |
816 | |
817 | assert(s); | |
818 | assert(fds); | |
819 | assert(n_fds); | |
820 | ||
6cf6bbc2 LP |
821 | if (s->socket_fd >= 0) |
822 | return 0; | |
823 | ||
1124fe6f | 824 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
44d8db9e LP |
825 | int *cfds; |
826 | unsigned cn_fds; | |
57020a3a LP |
827 | Socket *sock; |
828 | ||
ac155bb8 | 829 | if (u->type != UNIT_SOCKET) |
57020a3a LP |
830 | continue; |
831 | ||
832 | sock = SOCKET(u); | |
44d8db9e | 833 | |
117dcc57 ZJS |
834 | r = socket_collect_fds(sock, &cfds, &cn_fds); |
835 | if (r < 0) | |
44d8db9e LP |
836 | goto fail; |
837 | ||
838 | if (!cfds) | |
839 | continue; | |
840 | ||
841 | if (!rfds) { | |
842 | rfds = cfds; | |
843 | rn_fds = cn_fds; | |
844 | } else { | |
845 | int *t; | |
846 | ||
117dcc57 ZJS |
847 | t = new(int, rn_fds+cn_fds); |
848 | if (!t) { | |
44d8db9e LP |
849 | free(cfds); |
850 | r = -ENOMEM; | |
851 | goto fail; | |
852 | } | |
853 | ||
9c1b183c LP |
854 | memcpy(t, rfds, rn_fds * sizeof(int)); |
855 | memcpy(t+rn_fds, cfds, cn_fds * sizeof(int)); | |
44d8db9e LP |
856 | free(rfds); |
857 | free(cfds); | |
858 | ||
859 | rfds = t; | |
860 | rn_fds = rn_fds+cn_fds; | |
861 | } | |
862 | } | |
863 | ||
864 | *fds = rfds; | |
865 | *n_fds = rn_fds; | |
3e33402a | 866 | |
44d8db9e LP |
867 | return 0; |
868 | ||
869 | fail: | |
870 | free(rfds); | |
3e33402a | 871 | |
44d8db9e LP |
872 | return r; |
873 | } | |
874 | ||
81a2b7ce LP |
875 | static int service_spawn( |
876 | Service *s, | |
877 | ExecCommand *c, | |
21b2ce39 | 878 | usec_t timeout, |
81a2b7ce LP |
879 | bool pass_fds, |
880 | bool apply_permissions, | |
881 | bool apply_chroot, | |
1e3ad081 | 882 | bool apply_tty_stdin, |
c952c6ec | 883 | bool set_notify_socket, |
ecedd90f | 884 | bool is_control, |
81a2b7ce LP |
885 | pid_t *_pid) { |
886 | ||
034c6ed7 LP |
887 | pid_t pid; |
888 | int r; | |
117dcc57 | 889 | int *fds = NULL; |
7fd1b19b | 890 | _cleanup_free_ int *fdsbuf = NULL; |
2105e76a | 891 | unsigned n_fds = 0, n_env = 0; |
7fd1b19b | 892 | _cleanup_strv_free_ char |
117dcc57 | 893 | **argv = NULL, **final_env = NULL, **our_env = NULL; |
4ad49000 | 894 | const char *path; |
9fa95f85 DM |
895 | ExecParameters exec_params = { |
896 | .apply_permissions = apply_permissions, | |
897 | .apply_chroot = apply_chroot, | |
898 | .apply_tty_stdin = apply_tty_stdin, | |
899 | }; | |
034c6ed7 LP |
900 | |
901 | assert(s); | |
902 | assert(c); | |
903 | assert(_pid); | |
904 | ||
4ad49000 LP |
905 | unit_realize_cgroup(UNIT(s)); |
906 | ||
613b411c LP |
907 | r = unit_setup_exec_runtime(UNIT(s)); |
908 | if (r < 0) | |
909 | goto fail; | |
910 | ||
6cf6bbc2 LP |
911 | if (pass_fds || |
912 | s->exec_context.std_input == EXEC_INPUT_SOCKET || | |
913 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
914 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
915 | ||
4f2d528d LP |
916 | if (s->socket_fd >= 0) { |
917 | fds = &s->socket_fd; | |
918 | n_fds = 1; | |
6cf6bbc2 | 919 | } else { |
117dcc57 ZJS |
920 | r = service_collect_fds(s, &fdsbuf, &n_fds); |
921 | if (r < 0) | |
6cf6bbc2 LP |
922 | goto fail; |
923 | ||
924 | fds = fdsbuf; | |
925 | } | |
4f2d528d | 926 | } |
44d8db9e | 927 | |
21b2ce39 LP |
928 | if (timeout > 0) { |
929 | r = service_arm_timer(s, timeout); | |
92c1622e LP |
930 | if (r < 0) |
931 | goto fail; | |
932 | } else | |
933 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
034c6ed7 | 934 | |
19f6d710 LP |
935 | r = unit_full_printf_strv(UNIT(s), c->argv, &argv); |
936 | if (r < 0) | |
9e2f7c11 | 937 | goto fail; |
9e2f7c11 | 938 | |
09812eb7 | 939 | our_env = new0(char*, 4); |
97ae63e2 | 940 | if (!our_env) { |
2105e76a LP |
941 | r = -ENOMEM; |
942 | goto fail; | |
943 | } | |
c952c6ec | 944 | |
2105e76a | 945 | if (set_notify_socket) |
1124fe6f | 946 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) { |
c952c6ec LP |
947 | r = -ENOMEM; |
948 | goto fail; | |
949 | } | |
950 | ||
2105e76a | 951 | if (s->main_pid > 0) |
ccd06097 | 952 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) { |
c952c6ec LP |
953 | r = -ENOMEM; |
954 | goto fail; | |
955 | } | |
2105e76a | 956 | |
4ad49000 | 957 | if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM) |
ccd06097 | 958 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) { |
97ae63e2 LP |
959 | r = -ENOMEM; |
960 | goto fail; | |
961 | } | |
962 | ||
963 | final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL); | |
964 | if (!final_env) { | |
2105e76a LP |
965 | r = -ENOMEM; |
966 | goto fail; | |
967 | } | |
c952c6ec | 968 | |
4ad49000 LP |
969 | if (is_control && UNIT(s)->cgroup_path) { |
970 | path = strappenda(UNIT(s)->cgroup_path, "/control"); | |
971 | cg_create(SYSTEMD_CGROUP_CONTROLLER, path); | |
972 | } else | |
973 | path = UNIT(s)->cgroup_path; | |
974 | ||
9fa95f85 DM |
975 | exec_params.argv = argv; |
976 | exec_params.fds = fds; | |
977 | exec_params.n_fds = n_fds; | |
978 | exec_params.environment = final_env; | |
979 | exec_params.confirm_spawn = UNIT(s)->manager->confirm_spawn; | |
980 | exec_params.cgroup_supported = UNIT(s)->manager->cgroup_supported; | |
981 | exec_params.cgroup_path = path; | |
982 | exec_params.runtime_prefix = manager_get_runtime_prefix(UNIT(s)->manager); | |
983 | exec_params.unit_id = UNIT(s)->id; | |
984 | exec_params.watchdog_usec = s->watchdog_usec; | |
985 | if (s->type == SERVICE_IDLE) | |
986 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
987 | ||
9e2f7c11 | 988 | r = exec_spawn(c, |
9e2f7c11 | 989 | &s->exec_context, |
9fa95f85 | 990 | &exec_params, |
613b411c | 991 | s->exec_runtime, |
9e2f7c11 | 992 | &pid); |
9e2f7c11 | 993 | if (r < 0) |
034c6ed7 LP |
994 | goto fail; |
995 | ||
117dcc57 ZJS |
996 | r = unit_watch_pid(UNIT(s), pid); |
997 | if (r < 0) | |
034c6ed7 LP |
998 | /* FIXME: we need to do something here */ |
999 | goto fail; | |
1000 | ||
1001 | *_pid = pid; | |
1002 | ||
5cb5a6ff | 1003 | return 0; |
034c6ed7 LP |
1004 | |
1005 | fail: | |
1006 | if (timeout) | |
718db961 | 1007 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 LP |
1008 | |
1009 | return r; | |
1010 | } | |
1011 | ||
80876c20 LP |
1012 | static int main_pid_good(Service *s) { |
1013 | assert(s); | |
1014 | ||
1015 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1016 | * don't know */ | |
1017 | ||
1018 | /* If we know the pid file, then lets just check if it is | |
1019 | * still valid */ | |
6dfa5494 LP |
1020 | if (s->main_pid_known) { |
1021 | ||
1022 | /* If it's an alien child let's check if it is still | |
1023 | * alive ... */ | |
62220cf7 | 1024 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1025 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1026 | |
1027 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1028 | * which we really should wait for to collect exit | |
1029 | * status and code */ | |
80876c20 | 1030 | return s->main_pid > 0; |
6dfa5494 | 1031 | } |
80876c20 LP |
1032 | |
1033 | /* We don't know the pid */ | |
1034 | return -EAGAIN; | |
1035 | } | |
1036 | ||
44a6b1b6 | 1037 | _pure_ static int control_pid_good(Service *s) { |
80876c20 LP |
1038 | assert(s); |
1039 | ||
1040 | return s->control_pid > 0; | |
1041 | } | |
1042 | ||
1043 | static int cgroup_good(Service *s) { | |
1044 | int r; | |
1045 | ||
1046 | assert(s); | |
1047 | ||
4ad49000 LP |
1048 | if (!UNIT(s)->cgroup_path) |
1049 | return 0; | |
1050 | ||
1051 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true); | |
117dcc57 | 1052 | if (r < 0) |
80876c20 LP |
1053 | return r; |
1054 | ||
1055 | return !r; | |
1056 | } | |
1057 | ||
f42806df | 1058 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 LP |
1059 | int r; |
1060 | assert(s); | |
1061 | ||
f42806df LP |
1062 | if (f != SERVICE_SUCCESS) |
1063 | s->result = f; | |
034c6ed7 | 1064 | |
0c7f15b3 MS |
1065 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1066 | ||
2928b0a8 LP |
1067 | if (s->result != SERVICE_SUCCESS) { |
1068 | log_warning_unit(UNIT(s)->id, "%s failed.", UNIT(s)->id); | |
1069 | failure_action(UNIT(s)->manager, s->failure_action, s->reboot_arg); | |
1070 | } | |
93ae25e6 | 1071 | |
034c6ed7 | 1072 | if (allow_restart && |
47342320 | 1073 | !s->forbid_restart && |
034c6ed7 | 1074 | (s->restart == SERVICE_RESTART_ALWAYS || |
f42806df LP |
1075 | (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) || |
1076 | (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) || | |
6cfe2fde | 1077 | (s->restart == SERVICE_RESTART_ON_ABNORMAL && !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE)) || |
dc99a976 | 1078 | (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) || |
37520c1b | 1079 | (s->restart == SERVICE_RESTART_ON_ABORT && IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP)) || |
3e2d435b | 1080 | (s->main_exec_status.code == CLD_EXITED && set_contains(s->restart_force_status.status, INT_TO_PTR(s->main_exec_status.status))) || |
37520c1b | 1081 | (IN_SET(s->main_exec_status.code, CLD_KILLED, CLD_DUMPED) && set_contains(s->restart_force_status.signal, INT_TO_PTR(s->main_exec_status.status)))) && |
3e2d435b | 1082 | (s->main_exec_status.code != CLD_EXITED || !set_contains(s->restart_prevent_status.status, INT_TO_PTR(s->main_exec_status.status))) && |
37520c1b | 1083 | (!IN_SET(s->main_exec_status.code, CLD_KILLED, CLD_DUMPED) || !set_contains(s->restart_prevent_status.signal, INT_TO_PTR(s->main_exec_status.status)))) { |
034c6ed7 | 1084 | |
718db961 | 1085 | r = service_arm_timer(s, s->restart_usec); |
f42806df | 1086 | if (r < 0) |
034c6ed7 LP |
1087 | goto fail; |
1088 | ||
1089 | service_set_state(s, SERVICE_AUTO_RESTART); | |
0c7f15b3 | 1090 | } |
034c6ed7 | 1091 | |
47342320 LP |
1092 | s->forbid_restart = false; |
1093 | ||
e66cf1a3 | 1094 | /* We want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1095 | exec_runtime_destroy(s->exec_runtime); |
1096 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1097 | |
e66cf1a3 LP |
1098 | /* Also, remove the runtime directory in */ |
1099 | exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager)); | |
1100 | ||
9285c9ff LN |
1101 | /* Try to delete the pid file. At this point it will be |
1102 | * out-of-date, and some software might be confused by it, so | |
1103 | * let's remove it. */ | |
1104 | if (s->pid_file) | |
1105 | unlink_noerrno(s->pid_file); | |
1106 | ||
034c6ed7 LP |
1107 | return; |
1108 | ||
1109 | fail: | |
8bb2d17d | 1110 | log_warning_unit(UNIT(s)->id, "%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1111 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1112 | } |
1113 | ||
f42806df | 1114 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1115 | int r; |
1116 | assert(s); | |
1117 | ||
f42806df LP |
1118 | if (f != SERVICE_SUCCESS) |
1119 | s->result = f; | |
034c6ed7 | 1120 | |
5e94833f | 1121 | service_unwatch_control_pid(s); |
a911bb9a | 1122 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1123 | |
117dcc57 ZJS |
1124 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1125 | if (s->control_command) { | |
867b3b7d LP |
1126 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1127 | ||
ecedd90f LP |
1128 | r = service_spawn(s, |
1129 | s->control_command, | |
21b2ce39 | 1130 | s->timeout_stop_usec, |
ecedd90f LP |
1131 | false, |
1132 | !s->permissions_start_only, | |
1133 | !s->root_directory_start_only, | |
1134 | true, | |
1135 | false, | |
1136 | true, | |
1137 | &s->control_pid); | |
1138 | if (r < 0) | |
034c6ed7 LP |
1139 | goto fail; |
1140 | ||
80876c20 LP |
1141 | service_set_state(s, SERVICE_STOP_POST); |
1142 | } else | |
ac84d1fb | 1143 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1144 | |
1145 | return; | |
1146 | ||
1147 | fail: | |
8bb2d17d | 1148 | log_warning_unit(UNIT(s)->id, "%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1149 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1150 | } |
1151 | ||
f42806df | 1152 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1153 | int r; |
034c6ed7 LP |
1154 | |
1155 | assert(s); | |
1156 | ||
f42806df LP |
1157 | if (f != SERVICE_SUCCESS) |
1158 | s->result = f; | |
034c6ed7 | 1159 | |
a911bb9a LP |
1160 | unit_watch_all_pids(UNIT(s)); |
1161 | ||
cd2086fe LP |
1162 | r = unit_kill_context( |
1163 | UNIT(s), | |
1164 | &s->kill_context, | |
1165 | state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM, | |
1166 | s->main_pid, | |
1167 | s->control_pid, | |
1168 | s->main_pid_alien); | |
ac84d1fb | 1169 | |
cd2086fe LP |
1170 | if (r < 0) |
1171 | goto fail; | |
034c6ed7 | 1172 | |
cd2086fe | 1173 | if (r > 0) { |
d568a335 | 1174 | if (s->timeout_stop_usec > 0) { |
718db961 | 1175 | r = service_arm_timer(s, s->timeout_stop_usec); |
d568a335 | 1176 | if (r < 0) |
e558336f | 1177 | goto fail; |
d568a335 | 1178 | } |
d6ea93e3 | 1179 | |
80876c20 | 1180 | service_set_state(s, state); |
ac84d1fb LP |
1181 | } else if (state == SERVICE_STOP_SIGTERM) |
1182 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); | |
1183 | else if (state == SERVICE_STOP_SIGKILL) | |
f42806df | 1184 | service_enter_stop_post(s, SERVICE_SUCCESS); |
ac84d1fb LP |
1185 | else if (state == SERVICE_FINAL_SIGTERM) |
1186 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); | |
80876c20 | 1187 | else |
f42806df | 1188 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1189 | |
1190 | return; | |
1191 | ||
1192 | fail: | |
8bb2d17d | 1193 | log_warning_unit(UNIT(s)->id, "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r)); |
034c6ed7 | 1194 | |
80876c20 | 1195 | if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) |
f42806df | 1196 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1197 | else |
f42806df | 1198 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1199 | } |
1200 | ||
308d72dc LP |
1201 | static void service_enter_stop_by_notify(Service *s) { |
1202 | assert(s); | |
1203 | ||
1204 | unit_watch_all_pids(UNIT(s)); | |
1205 | ||
1206 | if (s->timeout_stop_usec > 0) | |
1207 | service_arm_timer(s, s->timeout_stop_usec); | |
1208 | ||
1209 | service_set_state(s, SERVICE_STOP); | |
1210 | } | |
1211 | ||
f42806df | 1212 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1213 | int r; |
5925dd3c | 1214 | |
034c6ed7 LP |
1215 | assert(s); |
1216 | ||
f42806df LP |
1217 | if (f != SERVICE_SUCCESS) |
1218 | s->result = f; | |
034c6ed7 | 1219 | |
5e94833f | 1220 | service_unwatch_control_pid(s); |
a911bb9a | 1221 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1222 | |
117dcc57 ZJS |
1223 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1224 | if (s->control_command) { | |
867b3b7d LP |
1225 | s->control_command_id = SERVICE_EXEC_STOP; |
1226 | ||
ecedd90f LP |
1227 | r = service_spawn(s, |
1228 | s->control_command, | |
21b2ce39 | 1229 | s->timeout_stop_usec, |
ecedd90f LP |
1230 | false, |
1231 | !s->permissions_start_only, | |
1232 | !s->root_directory_start_only, | |
1233 | false, | |
1234 | false, | |
1235 | true, | |
1236 | &s->control_pid); | |
1237 | if (r < 0) | |
034c6ed7 LP |
1238 | goto fail; |
1239 | ||
80876c20 LP |
1240 | service_set_state(s, SERVICE_STOP); |
1241 | } else | |
f42806df | 1242 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1243 | |
1244 | return; | |
1245 | ||
1246 | fail: | |
8bb2d17d | 1247 | log_warning_unit(UNIT(s)->id, "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1248 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1249 | } |
1250 | ||
f42806df | 1251 | static void service_enter_running(Service *s, ServiceResult f) { |
4eab639f | 1252 | int main_pid_ok, cgroup_ok; |
80876c20 LP |
1253 | assert(s); |
1254 | ||
f42806df LP |
1255 | if (f != SERVICE_SUCCESS) |
1256 | s->result = f; | |
80876c20 | 1257 | |
4eab639f LP |
1258 | main_pid_ok = main_pid_good(s); |
1259 | cgroup_ok = cgroup_good(s); | |
1260 | ||
1261 | if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) && | |
308d72dc LP |
1262 | (s->bus_name_good || s->type != SERVICE_DBUS)) { |
1263 | ||
1264 | /* If there are any queued up sd_notify() | |
1265 | * notifications, process them now */ | |
1266 | if (s->notify_state == NOTIFY_RELOADING) | |
1267 | service_enter_reload_by_notify(s); | |
1268 | else if (s->notify_state == NOTIFY_STOPPING) | |
1269 | service_enter_stop_by_notify(s); | |
1270 | else | |
1271 | service_set_state(s, SERVICE_RUNNING); | |
1272 | ||
1273 | } else if (s->remain_after_exit) | |
80876c20 LP |
1274 | service_set_state(s, SERVICE_EXITED); |
1275 | else | |
f42806df | 1276 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
1277 | } |
1278 | ||
034c6ed7 LP |
1279 | static void service_enter_start_post(Service *s) { |
1280 | int r; | |
1281 | assert(s); | |
1282 | ||
5e94833f | 1283 | service_unwatch_control_pid(s); |
842129f5 | 1284 | service_reset_watchdog(s); |
bb242b7b | 1285 | |
117dcc57 ZJS |
1286 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
1287 | if (s->control_command) { | |
867b3b7d LP |
1288 | s->control_command_id = SERVICE_EXEC_START_POST; |
1289 | ||
ecedd90f LP |
1290 | r = service_spawn(s, |
1291 | s->control_command, | |
21b2ce39 | 1292 | s->timeout_start_usec, |
ecedd90f LP |
1293 | false, |
1294 | !s->permissions_start_only, | |
1295 | !s->root_directory_start_only, | |
1296 | false, | |
1297 | false, | |
1298 | true, | |
1299 | &s->control_pid); | |
1300 | if (r < 0) | |
034c6ed7 LP |
1301 | goto fail; |
1302 | ||
80876c20 LP |
1303 | service_set_state(s, SERVICE_START_POST); |
1304 | } else | |
f42806df | 1305 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1306 | |
1307 | return; | |
1308 | ||
1309 | fail: | |
8bb2d17d | 1310 | log_warning_unit(UNIT(s)->id, "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1311 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1312 | } |
1313 | ||
4ad49000 LP |
1314 | static void service_kill_control_processes(Service *s) { |
1315 | char *p; | |
1316 | ||
1317 | if (!UNIT(s)->cgroup_path) | |
1318 | return; | |
1319 | ||
1320 | p = strappenda(UNIT(s)->cgroup_path, "/control"); | |
4ad49000 LP |
1321 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL); |
1322 | } | |
1323 | ||
034c6ed7 | 1324 | static void service_enter_start(Service *s) { |
4ad49000 | 1325 | ExecCommand *c; |
034c6ed7 LP |
1326 | pid_t pid; |
1327 | int r; | |
1328 | ||
1329 | assert(s); | |
1330 | ||
41efeaec LP |
1331 | service_unwatch_control_pid(s); |
1332 | service_unwatch_main_pid(s); | |
80876c20 | 1333 | |
8f53a7b8 LP |
1334 | /* We want to ensure that nobody leaks processes from |
1335 | * START_PRE here, so let's go on a killing spree, People | |
1336 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 1337 | service_kill_control_processes(s); |
8f53a7b8 | 1338 | |
867b3b7d LP |
1339 | if (s->type == SERVICE_FORKING) { |
1340 | s->control_command_id = SERVICE_EXEC_START; | |
1341 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
1342 | ||
1343 | s->main_command = NULL; | |
1344 | } else { | |
1345 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
1346 | s->control_command = NULL; | |
1347 | ||
1348 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
1349 | } | |
34e9ba66 | 1350 | |
96fb8242 LP |
1351 | if (!c) { |
1352 | assert(s->type == SERVICE_ONESHOT); | |
1353 | service_enter_start_post(s); | |
1354 | return; | |
1355 | } | |
1356 | ||
ecedd90f LP |
1357 | r = service_spawn(s, |
1358 | c, | |
21b2ce39 | 1359 | IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_NOTIFY, SERVICE_ONESHOT) ? s->timeout_start_usec : 0, |
ecedd90f LP |
1360 | true, |
1361 | true, | |
1362 | true, | |
1363 | true, | |
1364 | s->notify_access != NOTIFY_NONE, | |
1365 | false, | |
1366 | &pid); | |
1367 | if (r < 0) | |
034c6ed7 LP |
1368 | goto fail; |
1369 | ||
f2b68789 | 1370 | if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) { |
034c6ed7 LP |
1371 | /* For simple services we immediately start |
1372 | * the START_POST binaries. */ | |
1373 | ||
5925dd3c | 1374 | service_set_main_pid(s, pid); |
034c6ed7 LP |
1375 | service_enter_start_post(s); |
1376 | ||
1377 | } else if (s->type == SERVICE_FORKING) { | |
1378 | ||
1379 | /* For forking services we wait until the start | |
1380 | * process exited. */ | |
1381 | ||
e55224ca | 1382 | s->control_pid = pid; |
80876c20 LP |
1383 | service_set_state(s, SERVICE_START); |
1384 | ||
34e9ba66 | 1385 | } else if (s->type == SERVICE_ONESHOT || |
8c47c732 LP |
1386 | s->type == SERVICE_DBUS || |
1387 | s->type == SERVICE_NOTIFY) { | |
7d55e835 | 1388 | |
34e9ba66 | 1389 | /* For oneshot services we wait until the start |
7d55e835 LP |
1390 | * process exited, too, but it is our main process. */ |
1391 | ||
05e343b7 | 1392 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
1393 | * but wait for the bus name to appear on the |
1394 | * bus. Notify services are similar. */ | |
05e343b7 | 1395 | |
5925dd3c | 1396 | service_set_main_pid(s, pid); |
80876c20 | 1397 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
1398 | } else |
1399 | assert_not_reached("Unknown service type"); | |
1400 | ||
1401 | return; | |
1402 | ||
1403 | fail: | |
8bb2d17d | 1404 | log_warning_unit(UNIT(s)->id, "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1405 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1406 | } |
1407 | ||
1408 | static void service_enter_start_pre(Service *s) { | |
1409 | int r; | |
1410 | ||
1411 | assert(s); | |
1412 | ||
5e94833f LP |
1413 | service_unwatch_control_pid(s); |
1414 | ||
117dcc57 ZJS |
1415 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
1416 | if (s->control_command) { | |
8f53a7b8 LP |
1417 | /* Before we start anything, let's clear up what might |
1418 | * be left from previous runs. */ | |
4ad49000 | 1419 | service_kill_control_processes(s); |
8f53a7b8 | 1420 | |
867b3b7d LP |
1421 | s->control_command_id = SERVICE_EXEC_START_PRE; |
1422 | ||
ecedd90f LP |
1423 | r = service_spawn(s, |
1424 | s->control_command, | |
21b2ce39 | 1425 | s->timeout_start_usec, |
ecedd90f LP |
1426 | false, |
1427 | !s->permissions_start_only, | |
1428 | !s->root_directory_start_only, | |
1429 | true, | |
1430 | false, | |
1431 | true, | |
1432 | &s->control_pid); | |
1433 | if (r < 0) | |
034c6ed7 LP |
1434 | goto fail; |
1435 | ||
80876c20 LP |
1436 | service_set_state(s, SERVICE_START_PRE); |
1437 | } else | |
034c6ed7 LP |
1438 | service_enter_start(s); |
1439 | ||
1440 | return; | |
1441 | ||
1442 | fail: | |
37520c1b | 1443 | log_warning_unit(UNIT(s)->id, "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1444 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1445 | } |
1446 | ||
1447 | static void service_enter_restart(Service *s) { | |
718db961 | 1448 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 1449 | int r; |
398ef8ba | 1450 | |
034c6ed7 LP |
1451 | assert(s); |
1452 | ||
a8bb2e65 LP |
1453 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
1454 | /* Don't restart things if we are going down anyway */ | |
37520c1b | 1455 | log_info_unit(UNIT(s)->id, "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 1456 | |
718db961 | 1457 | r = service_arm_timer(s, s->restart_usec); |
a8bb2e65 | 1458 | if (r < 0) |
2edfa366 | 1459 | goto fail; |
feae8adb DW |
1460 | |
1461 | return; | |
2edfa366 LP |
1462 | } |
1463 | ||
48bb5876 DW |
1464 | /* Any units that are bound to this service must also be |
1465 | * restarted. We use JOB_RESTART (instead of the more obvious | |
1466 | * JOB_START) here so that those dependency jobs will be added | |
1467 | * as well. */ | |
1468 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL); | |
1469 | if (r < 0) | |
034c6ed7 LP |
1470 | goto fail; |
1471 | ||
a8bb2e65 LP |
1472 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
1473 | * it will be canceled as part of the service_stop() call that | |
1474 | * is executed as part of JOB_RESTART. */ | |
1475 | ||
37520c1b | 1476 | log_debug_unit(UNIT(s)->id, "%s scheduled restart job.", UNIT(s)->id); |
034c6ed7 LP |
1477 | return; |
1478 | ||
1479 | fail: | |
308d72dc | 1480 | log_warning_unit(UNIT(s)->id, "%s failed to schedule restart job: %s", UNIT(s)->id, bus_error_message(&error, -r)); |
f42806df | 1481 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1482 | } |
1483 | ||
308d72dc LP |
1484 | static void service_enter_reload_by_notify(Service *s) { |
1485 | assert(s); | |
1486 | ||
1487 | if (s->timeout_start_usec > 0) | |
1488 | service_arm_timer(s, s->timeout_start_usec); | |
1489 | ||
1490 | service_set_state(s, SERVICE_RELOAD); | |
1491 | } | |
1492 | ||
034c6ed7 LP |
1493 | static void service_enter_reload(Service *s) { |
1494 | int r; | |
1495 | ||
1496 | assert(s); | |
1497 | ||
5e94833f LP |
1498 | service_unwatch_control_pid(s); |
1499 | ||
117dcc57 ZJS |
1500 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
1501 | if (s->control_command) { | |
867b3b7d LP |
1502 | s->control_command_id = SERVICE_EXEC_RELOAD; |
1503 | ||
ecedd90f LP |
1504 | r = service_spawn(s, |
1505 | s->control_command, | |
21b2ce39 | 1506 | s->timeout_start_usec, |
ecedd90f LP |
1507 | false, |
1508 | !s->permissions_start_only, | |
1509 | !s->root_directory_start_only, | |
1510 | false, | |
1511 | false, | |
1512 | true, | |
1513 | &s->control_pid); | |
1514 | if (r < 0) | |
034c6ed7 LP |
1515 | goto fail; |
1516 | ||
80876c20 LP |
1517 | service_set_state(s, SERVICE_RELOAD); |
1518 | } else | |
f42806df | 1519 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1520 | |
1521 | return; | |
1522 | ||
1523 | fail: | |
8bb2d17d | 1524 | log_warning_unit(UNIT(s)->id, "%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df LP |
1525 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1526 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
1527 | } |
1528 | ||
f42806df | 1529 | static void service_run_next_control(Service *s) { |
034c6ed7 LP |
1530 | int r; |
1531 | ||
1532 | assert(s); | |
1533 | assert(s->control_command); | |
1534 | assert(s->control_command->command_next); | |
1535 | ||
34e9ba66 | 1536 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 1537 | |
34e9ba66 | 1538 | s->control_command = s->control_command->command_next; |
5e94833f LP |
1539 | service_unwatch_control_pid(s); |
1540 | ||
ecedd90f LP |
1541 | r = service_spawn(s, |
1542 | s->control_command, | |
21b2ce39 | 1543 | IN_SET(s->state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD) ? s->timeout_start_usec : s->timeout_stop_usec, |
ecedd90f LP |
1544 | false, |
1545 | !s->permissions_start_only, | |
1546 | !s->root_directory_start_only, | |
1547 | s->control_command_id == SERVICE_EXEC_START_PRE || | |
1548 | s->control_command_id == SERVICE_EXEC_STOP_POST, | |
1549 | false, | |
1550 | true, | |
1551 | &s->control_pid); | |
1552 | if (r < 0) | |
034c6ed7 LP |
1553 | goto fail; |
1554 | ||
1555 | return; | |
1556 | ||
1557 | fail: | |
8bb2d17d | 1558 | log_warning_unit(UNIT(s)->id, "%s failed to run next control task: %s", UNIT(s)->id, strerror(-r)); |
034c6ed7 | 1559 | |
80876c20 | 1560 | if (s->state == SERVICE_START_PRE) |
f42806df | 1561 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
80876c20 | 1562 | else if (s->state == SERVICE_STOP) |
f42806df | 1563 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1564 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 1565 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 1566 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
1567 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1568 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 1569 | } else |
f42806df | 1570 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
1571 | } |
1572 | ||
f42806df | 1573 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
1574 | pid_t pid; |
1575 | int r; | |
1576 | ||
1577 | assert(s); | |
867b3b7d LP |
1578 | assert(s->main_command); |
1579 | assert(s->main_command->command_next); | |
1580 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 1581 | |
867b3b7d | 1582 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
1583 | service_unwatch_main_pid(s); |
1584 | ||
ecedd90f LP |
1585 | r = service_spawn(s, |
1586 | s->main_command, | |
21b2ce39 | 1587 | s->timeout_start_usec, |
ecedd90f LP |
1588 | true, |
1589 | true, | |
1590 | true, | |
1591 | true, | |
1592 | s->notify_access != NOTIFY_NONE, | |
1593 | false, | |
1594 | &pid); | |
1595 | if (r < 0) | |
34e9ba66 LP |
1596 | goto fail; |
1597 | ||
1598 | service_set_main_pid(s, pid); | |
1599 | ||
1600 | return; | |
1601 | ||
1602 | fail: | |
8bb2d17d | 1603 | log_warning_unit(UNIT(s)->id, "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1604 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
1605 | } |
1606 | ||
93ae25e6 MO |
1607 | static int service_start_limit_test(Service *s) { |
1608 | assert(s); | |
1609 | ||
1610 | if (ratelimit_test(&s->start_limit)) | |
1611 | return 0; | |
1612 | ||
2928b0a8 LP |
1613 | log_warning_unit(UNIT(s)->id, "start request repeated too quickly for %s", UNIT(s)->id); |
1614 | ||
1615 | return failure_action(UNIT(s)->manager, s->start_limit_action, s->reboot_arg); | |
93ae25e6 MO |
1616 | } |
1617 | ||
87f0e418 LP |
1618 | static int service_start(Unit *u) { |
1619 | Service *s = SERVICE(u); | |
4b939747 | 1620 | int r; |
5cb5a6ff LP |
1621 | |
1622 | assert(s); | |
1623 | ||
034c6ed7 LP |
1624 | /* We cannot fulfill this request right now, try again later |
1625 | * please! */ | |
1626 | if (s->state == SERVICE_STOP || | |
1627 | s->state == SERVICE_STOP_SIGTERM || | |
1628 | s->state == SERVICE_STOP_SIGKILL || | |
1629 | s->state == SERVICE_STOP_POST || | |
1630 | s->state == SERVICE_FINAL_SIGTERM || | |
1631 | s->state == SERVICE_FINAL_SIGKILL) | |
5cb5a6ff LP |
1632 | return -EAGAIN; |
1633 | ||
034c6ed7 LP |
1634 | /* Already on it! */ |
1635 | if (s->state == SERVICE_START_PRE || | |
1636 | s->state == SERVICE_START || | |
1637 | s->state == SERVICE_START_POST) | |
1638 | return 0; | |
1639 | ||
2e9d6c12 | 1640 | /* A service that will be restarted must be stopped first to |
7f2cddae | 1641 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 1642 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
1643 | * service should be manually restarted, not started. We |
1644 | * simply return EAGAIN here, so that any start jobs stay | |
1645 | * queued, and assume that the auto restart timer will | |
1646 | * eventually trigger the restart. */ | |
1647 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 1648 | return -EAGAIN; |
2e9d6c12 DW |
1649 | |
1650 | assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED); | |
5cb5a6ff | 1651 | |
1e2e8133 | 1652 | /* Make sure we don't enter a busy loop of some kind. */ |
4b939747 | 1653 | r = service_start_limit_test(s); |
c2f34808 | 1654 | if (r < 0) { |
8d1b002a | 1655 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false); |
4b939747 | 1656 | return r; |
c2f34808 | 1657 | } |
1e2e8133 | 1658 | |
f42806df LP |
1659 | s->result = SERVICE_SUCCESS; |
1660 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 1661 | s->main_pid_known = false; |
6dfa5494 | 1662 | s->main_pid_alien = false; |
47342320 | 1663 | s->forbid_restart = false; |
034c6ed7 | 1664 | |
8cfdb077 LP |
1665 | free(s->status_text); |
1666 | s->status_text = NULL; | |
1667 | s->status_errno = 0; | |
1668 | ||
308d72dc LP |
1669 | s->notify_state = NOTIFY_UNKNOWN; |
1670 | ||
034c6ed7 LP |
1671 | service_enter_start_pre(s); |
1672 | return 0; | |
5cb5a6ff LP |
1673 | } |
1674 | ||
87f0e418 LP |
1675 | static int service_stop(Unit *u) { |
1676 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
1677 | |
1678 | assert(s); | |
1679 | ||
f0c7b229 | 1680 | /* Don't create restart jobs from here. */ |
47342320 | 1681 | s->forbid_restart = true; |
034c6ed7 | 1682 | |
e537352b LP |
1683 | /* Already on it */ |
1684 | if (s->state == SERVICE_STOP || | |
1685 | s->state == SERVICE_STOP_SIGTERM || | |
1686 | s->state == SERVICE_STOP_SIGKILL || | |
1687 | s->state == SERVICE_STOP_POST || | |
1688 | s->state == SERVICE_FINAL_SIGTERM || | |
1689 | s->state == SERVICE_FINAL_SIGKILL) | |
1690 | return 0; | |
1691 | ||
f0c7b229 | 1692 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 1693 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 1694 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
1695 | return 0; |
1696 | } | |
1697 | ||
3f6c78dc LP |
1698 | /* If there's already something running we go directly into |
1699 | * kill mode. */ | |
1700 | if (s->state == SERVICE_START_PRE || | |
1701 | s->state == SERVICE_START || | |
1702 | s->state == SERVICE_START_POST || | |
1703 | s->state == SERVICE_RELOAD) { | |
f42806df | 1704 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
1705 | return 0; |
1706 | } | |
5cb5a6ff | 1707 | |
3f6c78dc LP |
1708 | assert(s->state == SERVICE_RUNNING || |
1709 | s->state == SERVICE_EXITED); | |
3a762661 | 1710 | |
f42806df | 1711 | service_enter_stop(s, SERVICE_SUCCESS); |
5cb5a6ff LP |
1712 | return 0; |
1713 | } | |
1714 | ||
87f0e418 LP |
1715 | static int service_reload(Unit *u) { |
1716 | Service *s = SERVICE(u); | |
034c6ed7 LP |
1717 | |
1718 | assert(s); | |
1719 | ||
80876c20 | 1720 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
1721 | |
1722 | service_enter_reload(s); | |
5cb5a6ff LP |
1723 | return 0; |
1724 | } | |
1725 | ||
44a6b1b6 | 1726 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 1727 | Service *s = SERVICE(u); |
034c6ed7 LP |
1728 | |
1729 | assert(s); | |
1730 | ||
1731 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
1732 | } | |
1733 | ||
a16e1123 LP |
1734 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
1735 | Service *s = SERVICE(u); | |
1736 | ||
1737 | assert(u); | |
1738 | assert(f); | |
1739 | assert(fds); | |
1740 | ||
1741 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
1742 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
1743 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
1744 | |
1745 | if (s->control_pid > 0) | |
ccd06097 ZJS |
1746 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, |
1747 | s->control_pid); | |
a16e1123 | 1748 | |
5925dd3c | 1749 | if (s->main_pid_known && s->main_pid > 0) |
ccd06097 | 1750 | unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 LP |
1751 | |
1752 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
1753 | ||
3a2776bc LP |
1754 | if (s->status_text) |
1755 | unit_serialize_item(u, f, "status-text", s->status_text); | |
1756 | ||
cfc4eb4c LP |
1757 | /* FIXME: There's a minor uncleanliness here: if there are |
1758 | * multiple commands attached here, we will start from the | |
1759 | * first one again */ | |
a16e1123 | 1760 | if (s->control_command_id >= 0) |
117dcc57 ZJS |
1761 | unit_serialize_item(u, f, "control-command", |
1762 | service_exec_command_to_string(s->control_command_id)); | |
a16e1123 LP |
1763 | |
1764 | if (s->socket_fd >= 0) { | |
1765 | int copy; | |
1766 | ||
1767 | if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0) | |
1768 | return copy; | |
1769 | ||
1770 | unit_serialize_item_format(u, f, "socket-fd", "%i", copy); | |
1771 | } | |
1772 | ||
ecdbca40 | 1773 | if (s->main_exec_status.pid > 0) { |
ccd06097 ZJS |
1774 | unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT, |
1775 | s->main_exec_status.pid); | |
117dcc57 ZJS |
1776 | dual_timestamp_serialize(f, "main-exec-status-start", |
1777 | &s->main_exec_status.start_timestamp); | |
1778 | dual_timestamp_serialize(f, "main-exec-status-exit", | |
1779 | &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 1780 | |
799fd0fd | 1781 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
117dcc57 ZJS |
1782 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", |
1783 | s->main_exec_status.code); | |
1784 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", | |
1785 | s->main_exec_status.status); | |
ecdbca40 LP |
1786 | } |
1787 | } | |
a6927d7f | 1788 | if (dual_timestamp_is_set(&s->watchdog_timestamp)) |
842129f5 | 1789 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); |
ecdbca40 | 1790 | |
6aca9a58 | 1791 | if (s->forbid_restart) |
8d1a2802 | 1792 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 1793 | |
a16e1123 LP |
1794 | return 0; |
1795 | } | |
1796 | ||
1797 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
1798 | Service *s = SERVICE(u); | |
a16e1123 LP |
1799 | |
1800 | assert(u); | |
1801 | assert(key); | |
1802 | assert(value); | |
1803 | assert(fds); | |
1804 | ||
1805 | if (streq(key, "state")) { | |
1806 | ServiceState state; | |
1807 | ||
117dcc57 ZJS |
1808 | state = service_state_from_string(value); |
1809 | if (state < 0) | |
66870f90 | 1810 | log_debug_unit(u->id, "Failed to parse state value %s", value); |
a16e1123 LP |
1811 | else |
1812 | s->deserialized_state = state; | |
f42806df LP |
1813 | } else if (streq(key, "result")) { |
1814 | ServiceResult f; | |
1815 | ||
1816 | f = service_result_from_string(value); | |
1817 | if (f < 0) | |
66870f90 | 1818 | log_debug_unit(u->id, "Failed to parse result value %s", value); |
f42806df LP |
1819 | else if (f != SERVICE_SUCCESS) |
1820 | s->result = f; | |
1821 | ||
1822 | } else if (streq(key, "reload-result")) { | |
1823 | ServiceResult f; | |
1824 | ||
1825 | f = service_result_from_string(value); | |
1826 | if (f < 0) | |
66870f90 | 1827 | log_debug_unit(u->id, "Failed to parse reload result value %s", value); |
f42806df LP |
1828 | else if (f != SERVICE_SUCCESS) |
1829 | s->reload_result = f; | |
a16e1123 | 1830 | |
a16e1123 | 1831 | } else if (streq(key, "control-pid")) { |
5925dd3c | 1832 | pid_t pid; |
a16e1123 | 1833 | |
e364ad06 | 1834 | if (parse_pid(value, &pid) < 0) |
66870f90 | 1835 | log_debug_unit(u->id, "Failed to parse control-pid value %s", value); |
a16e1123 | 1836 | else |
e55224ca | 1837 | s->control_pid = pid; |
a16e1123 | 1838 | } else if (streq(key, "main-pid")) { |
5925dd3c | 1839 | pid_t pid; |
a16e1123 | 1840 | |
e364ad06 | 1841 | if (parse_pid(value, &pid) < 0) |
66870f90 | 1842 | log_debug_unit(u->id, "Failed to parse main-pid value %s", value); |
7400b9d2 LP |
1843 | else { |
1844 | service_set_main_pid(s, pid); | |
1845 | unit_watch_pid(UNIT(s), pid); | |
1846 | } | |
a16e1123 LP |
1847 | } else if (streq(key, "main-pid-known")) { |
1848 | int b; | |
1849 | ||
117dcc57 ZJS |
1850 | b = parse_boolean(value); |
1851 | if (b < 0) | |
66870f90 | 1852 | log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value); |
a16e1123 LP |
1853 | else |
1854 | s->main_pid_known = b; | |
3a2776bc LP |
1855 | } else if (streq(key, "status-text")) { |
1856 | char *t; | |
1857 | ||
117dcc57 ZJS |
1858 | t = strdup(value); |
1859 | if (!t) | |
1860 | log_oom(); | |
1861 | else { | |
3a2776bc LP |
1862 | free(s->status_text); |
1863 | s->status_text = t; | |
1864 | } | |
1865 | ||
a16e1123 LP |
1866 | } else if (streq(key, "control-command")) { |
1867 | ServiceExecCommand id; | |
1868 | ||
117dcc57 ZJS |
1869 | id = service_exec_command_from_string(value); |
1870 | if (id < 0) | |
66870f90 | 1871 | log_debug_unit(u->id, "Failed to parse exec-command value %s", value); |
a16e1123 LP |
1872 | else { |
1873 | s->control_command_id = id; | |
1874 | s->control_command = s->exec_command[id]; | |
1875 | } | |
1876 | } else if (streq(key, "socket-fd")) { | |
1877 | int fd; | |
1878 | ||
1879 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
66870f90 | 1880 | log_debug_unit(u->id, "Failed to parse socket-fd value %s", value); |
a16e1123 LP |
1881 | else { |
1882 | ||
574634bc | 1883 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
1884 | s->socket_fd = fdset_remove(fds, fd); |
1885 | } | |
ecdbca40 LP |
1886 | } else if (streq(key, "main-exec-status-pid")) { |
1887 | pid_t pid; | |
1888 | ||
e364ad06 | 1889 | if (parse_pid(value, &pid) < 0) |
66870f90 | 1890 | log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value); |
ecdbca40 LP |
1891 | else |
1892 | s->main_exec_status.pid = pid; | |
1893 | } else if (streq(key, "main-exec-status-code")) { | |
1894 | int i; | |
1895 | ||
e364ad06 | 1896 | if (safe_atoi(value, &i) < 0) |
66870f90 | 1897 | log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value); |
ecdbca40 LP |
1898 | else |
1899 | s->main_exec_status.code = i; | |
1900 | } else if (streq(key, "main-exec-status-status")) { | |
1901 | int i; | |
1902 | ||
e364ad06 | 1903 | if (safe_atoi(value, &i) < 0) |
66870f90 | 1904 | log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value); |
ecdbca40 LP |
1905 | else |
1906 | s->main_exec_status.status = i; | |
799fd0fd LP |
1907 | } else if (streq(key, "main-exec-status-start")) |
1908 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
1909 | else if (streq(key, "main-exec-status-exit")) | |
1910 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
1911 | else if (streq(key, "watchdog-timestamp")) |
1912 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 1913 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
1914 | int b; |
1915 | ||
1916 | b = parse_boolean(value); | |
1917 | if (b < 0) | |
8d1a2802 | 1918 | log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value); |
6aca9a58 SE |
1919 | else |
1920 | s->forbid_restart = b; | |
c17ec25e | 1921 | } else |
66870f90 | 1922 | log_debug_unit(u->id, "Unknown serialization key '%s'", key); |
a16e1123 LP |
1923 | |
1924 | return 0; | |
1925 | } | |
1926 | ||
44a6b1b6 | 1927 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
1928 | const UnitActiveState *table; |
1929 | ||
87f0e418 | 1930 | assert(u); |
5cb5a6ff | 1931 | |
e056b01d LP |
1932 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
1933 | ||
1934 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
1935 | } |
1936 | ||
10a94420 LP |
1937 | static const char *service_sub_state_to_string(Unit *u) { |
1938 | assert(u); | |
1939 | ||
1940 | return service_state_to_string(SERVICE(u)->state); | |
1941 | } | |
1942 | ||
701cc384 LP |
1943 | static bool service_check_gc(Unit *u) { |
1944 | Service *s = SERVICE(u); | |
1945 | ||
1946 | assert(s); | |
1947 | ||
6d55002a LP |
1948 | /* Never clean up services that still have a process around, |
1949 | * even if the service is formally dead. */ | |
1950 | if (cgroup_good(s) > 0 || | |
1951 | main_pid_good(s) > 0 || | |
1952 | control_pid_good(s) > 0) | |
1953 | return true; | |
1954 | ||
6d55002a LP |
1955 | return false; |
1956 | } | |
1957 | ||
44a6b1b6 | 1958 | _pure_ static bool service_check_snapshot(Unit *u) { |
701cc384 LP |
1959 | Service *s = SERVICE(u); |
1960 | ||
1961 | assert(s); | |
1962 | ||
8bb2d17d | 1963 | return s->socket_fd < 0; |
701cc384 LP |
1964 | } |
1965 | ||
3a111838 MS |
1966 | static int service_retry_pid_file(Service *s) { |
1967 | int r; | |
1968 | ||
1969 | assert(s->pid_file); | |
1970 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
1971 | ||
1972 | r = service_load_pid_file(s, false); | |
1973 | if (r < 0) | |
1974 | return r; | |
1975 | ||
1976 | service_unwatch_pid_file(s); | |
1977 | ||
f42806df | 1978 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
1979 | return 0; |
1980 | } | |
1981 | ||
1982 | static int service_watch_pid_file(Service *s) { | |
1983 | int r; | |
1984 | ||
8bb2d17d LP |
1985 | log_debug_unit(UNIT(s)->id, "Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path); |
1986 | ||
718db961 | 1987 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
1988 | if (r < 0) |
1989 | goto fail; | |
1990 | ||
1991 | /* the pidfile might have appeared just before we set the watch */ | |
8bb2d17d | 1992 | log_debug_unit(UNIT(s)->id, "Trying to read %s's PID file %s in case it changed", UNIT(s)->id, s->pid_file_pathspec->path); |
3a111838 MS |
1993 | service_retry_pid_file(s); |
1994 | ||
1995 | return 0; | |
1996 | fail: | |
8bb2d17d | 1997 | log_error_unit(UNIT(s)->id, "Failed to set a watch for %s's PID file %s: %s", UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r)); |
3a111838 MS |
1998 | service_unwatch_pid_file(s); |
1999 | return r; | |
2000 | } | |
2001 | ||
2002 | static int service_demand_pid_file(Service *s) { | |
2003 | PathSpec *ps; | |
2004 | ||
2005 | assert(s->pid_file); | |
2006 | assert(!s->pid_file_pathspec); | |
2007 | ||
2008 | ps = new0(PathSpec, 1); | |
2009 | if (!ps) | |
2010 | return -ENOMEM; | |
2011 | ||
718db961 | 2012 | ps->unit = UNIT(s); |
3a111838 MS |
2013 | ps->path = strdup(s->pid_file); |
2014 | if (!ps->path) { | |
2015 | free(ps); | |
2016 | return -ENOMEM; | |
2017 | } | |
2018 | ||
2019 | path_kill_slashes(ps->path); | |
2020 | ||
2021 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2022 | * keep their PID file open all the time. */ | |
2023 | ps->type = PATH_MODIFIED; | |
2024 | ps->inotify_fd = -1; | |
2025 | ||
2026 | s->pid_file_pathspec = ps; | |
2027 | ||
2028 | return service_watch_pid_file(s); | |
2029 | } | |
2030 | ||
718db961 | 2031 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2032 | PathSpec *p = userdata; |
2033 | Service *s; | |
2034 | ||
2035 | assert(p); | |
2036 | ||
2037 | s = SERVICE(p->unit); | |
3a111838 MS |
2038 | |
2039 | assert(s); | |
2040 | assert(fd >= 0); | |
2041 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2042 | assert(s->pid_file_pathspec); | |
57020a3a | 2043 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2044 | |
718db961 | 2045 | log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id); |
3a111838 | 2046 | |
e14c2802 | 2047 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2048 | goto fail; |
2049 | ||
2050 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2051 | return 0; |
3a111838 MS |
2052 | |
2053 | if (service_watch_pid_file(s) < 0) | |
2054 | goto fail; | |
2055 | ||
718db961 LP |
2056 | return 0; |
2057 | ||
3a111838 MS |
2058 | fail: |
2059 | service_unwatch_pid_file(s); | |
f42806df | 2060 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2061 | return 0; |
3a111838 MS |
2062 | } |
2063 | ||
a911bb9a LP |
2064 | static void service_notify_cgroup_empty_event(Unit *u) { |
2065 | Service *s = SERVICE(u); | |
2066 | ||
2067 | assert(u); | |
2068 | ||
2069 | log_debug_unit(u->id, "%s: cgroup is empty", u->id); | |
2070 | ||
2071 | switch (s->state) { | |
2072 | ||
2073 | /* Waiting for SIGCHLD is usually more interesting, | |
2074 | * because it includes return codes/signals. Which is | |
2075 | * why we ignore the cgroup events for most cases, | |
2076 | * except when we don't know pid which to expect the | |
2077 | * SIGCHLD for. */ | |
2078 | ||
2079 | case SERVICE_START: | |
2080 | case SERVICE_START_POST: | |
2081 | /* If we were hoping for the daemon to write its PID file, | |
2082 | * we can give up now. */ | |
2083 | if (s->pid_file_pathspec) { | |
8bb2d17d LP |
2084 | log_warning_unit(u->id, "%s never wrote its PID file. Failing.", UNIT(s)->id); |
2085 | ||
a911bb9a LP |
2086 | service_unwatch_pid_file(s); |
2087 | if (s->state == SERVICE_START) | |
2088 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); | |
2089 | else | |
2090 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); | |
2091 | } | |
2092 | break; | |
2093 | ||
2094 | case SERVICE_RUNNING: | |
2095 | /* service_enter_running() will figure out what to do */ | |
2096 | service_enter_running(s, SERVICE_SUCCESS); | |
2097 | break; | |
2098 | ||
2099 | case SERVICE_STOP_SIGTERM: | |
2100 | case SERVICE_STOP_SIGKILL: | |
2101 | ||
2102 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2103 | service_enter_stop_post(s, SERVICE_SUCCESS); | |
2104 | ||
2105 | break; | |
2106 | ||
2107 | case SERVICE_STOP_POST: | |
2108 | case SERVICE_FINAL_SIGTERM: | |
2109 | case SERVICE_FINAL_SIGKILL: | |
2110 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2111 | service_enter_dead(s, SERVICE_SUCCESS, true); | |
2112 | ||
2113 | break; | |
2114 | ||
2115 | default: | |
2116 | ; | |
2117 | } | |
2118 | } | |
2119 | ||
87f0e418 LP |
2120 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2121 | Service *s = SERVICE(u); | |
f42806df | 2122 | ServiceResult f; |
5cb5a6ff LP |
2123 | |
2124 | assert(s); | |
034c6ed7 LP |
2125 | assert(pid >= 0); |
2126 | ||
96342de6 LN |
2127 | if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) : |
2128 | is_clean_exit_lsb(code, status, &s->success_status)) | |
f42806df LP |
2129 | f = SERVICE_SUCCESS; |
2130 | else if (code == CLD_EXITED) | |
2131 | f = SERVICE_FAILURE_EXIT_CODE; | |
2132 | else if (code == CLD_KILLED) | |
2133 | f = SERVICE_FAILURE_SIGNAL; | |
2134 | else if (code == CLD_DUMPED) | |
2135 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2136 | else |
cfc4eb4c | 2137 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2138 | |
2139 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2140 | /* Forking services may occasionally move to a new PID. |
2141 | * As long as they update the PID file before exiting the old | |
2142 | * PID, they're fine. */ | |
5375410b | 2143 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2144 | return; |
034c6ed7 | 2145 | |
034c6ed7 | 2146 | s->main_pid = 0; |
6ea832a2 | 2147 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2148 | |
867b3b7d | 2149 | if (s->main_command) { |
fbeefb45 LP |
2150 | /* If this is not a forking service than the |
2151 | * main process got started and hence we copy | |
2152 | * the exit status so that it is recorded both | |
2153 | * as main and as control process exit | |
2154 | * status */ | |
2155 | ||
867b3b7d | 2156 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2157 | |
867b3b7d | 2158 | if (s->main_command->ignore) |
f42806df | 2159 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2160 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2161 | ||
2162 | /* If this is a forked process, then we should | |
2163 | * ignore the return value if this was | |
2164 | * configured for the starter process */ | |
2165 | ||
2166 | if (s->exec_command[SERVICE_EXEC_START]->ignore) | |
2167 | f = SERVICE_SUCCESS; | |
034c6ed7 LP |
2168 | } |
2169 | ||
bbc9006e MT |
2170 | log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, |
2171 | u->id, | |
23635a85 ZJS |
2172 | "MESSAGE=%s: main process exited, code=%s, status=%i/%s", |
2173 | u->id, sigchld_code_to_string(code), status, | |
2174 | strna(code == CLD_EXITED | |
2175 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2176 | : signal_to_string(status)), | |
23635a85 ZJS |
2177 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2178 | "EXIT_STATUS=%i", status, | |
2179 | NULL); | |
f42806df LP |
2180 | |
2181 | if (f != SERVICE_SUCCESS) | |
2182 | s->result = f; | |
034c6ed7 | 2183 | |
867b3b7d LP |
2184 | if (s->main_command && |
2185 | s->main_command->command_next && | |
f42806df | 2186 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2187 | |
34e9ba66 LP |
2188 | /* There is another command to * |
2189 | * execute, so let's do that. */ | |
034c6ed7 | 2190 | |
8bb2d17d | 2191 | log_debug_unit(u->id, "%s running next main command for state %s", u->id, service_state_to_string(s->state)); |
f42806df | 2192 | service_run_next_main(s); |
034c6ed7 | 2193 | |
34e9ba66 LP |
2194 | } else { |
2195 | ||
2196 | /* The service exited, so the service is officially | |
2197 | * gone. */ | |
867b3b7d | 2198 | s->main_command = NULL; |
34e9ba66 LP |
2199 | |
2200 | switch (s->state) { | |
2201 | ||
2202 | case SERVICE_START_POST: | |
2203 | case SERVICE_RELOAD: | |
2204 | case SERVICE_STOP: | |
2205 | /* Need to wait until the operation is | |
2206 | * done */ | |
c4653a4d | 2207 | break; |
7d55e835 | 2208 | |
34e9ba66 LP |
2209 | case SERVICE_START: |
2210 | if (s->type == SERVICE_ONESHOT) { | |
2211 | /* This was our main goal, so let's go on */ | |
f42806df | 2212 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2213 | service_enter_start_post(s); |
2214 | else | |
f42806df | 2215 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
34e9ba66 | 2216 | break; |
34e9ba66 | 2217 | } |
034c6ed7 | 2218 | |
bfba3256 LP |
2219 | /* Fall through */ |
2220 | ||
34e9ba66 | 2221 | case SERVICE_RUNNING: |
f42806df | 2222 | service_enter_running(s, f); |
34e9ba66 | 2223 | break; |
034c6ed7 | 2224 | |
34e9ba66 LP |
2225 | case SERVICE_STOP_SIGTERM: |
2226 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 2227 | |
34e9ba66 | 2228 | if (!control_pid_good(s)) |
f42806df | 2229 | service_enter_stop_post(s, f); |
5cb5a6ff | 2230 | |
34e9ba66 LP |
2231 | /* If there is still a control process, wait for that first */ |
2232 | break; | |
2233 | ||
bf108e55 LP |
2234 | case SERVICE_STOP_POST: |
2235 | case SERVICE_FINAL_SIGTERM: | |
2236 | case SERVICE_FINAL_SIGKILL: | |
2237 | ||
2238 | if (!control_pid_good(s)) | |
2239 | service_enter_dead(s, f, true); | |
2240 | break; | |
2241 | ||
34e9ba66 LP |
2242 | default: |
2243 | assert_not_reached("Uh, main process died at wrong time."); | |
2244 | } | |
034c6ed7 | 2245 | } |
5cb5a6ff | 2246 | |
034c6ed7 | 2247 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
2248 | s->control_pid = 0; |
2249 | ||
b708e7ce | 2250 | if (s->control_command) { |
8bb2d17d | 2251 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 2252 | |
b708e7ce | 2253 | if (s->control_command->ignore) |
f42806df | 2254 | f = SERVICE_SUCCESS; |
b708e7ce LP |
2255 | } |
2256 | ||
66870f90 ZJS |
2257 | log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id, |
2258 | "%s: control process exited, code=%s status=%i", | |
2259 | u->id, sigchld_code_to_string(code), status); | |
f42806df LP |
2260 | |
2261 | if (f != SERVICE_SUCCESS) | |
2262 | s->result = f; | |
034c6ed7 | 2263 | |
88f3e0c9 LP |
2264 | /* Immediately get rid of the cgroup, so that the |
2265 | * kernel doesn't delay the cgroup empty messages for | |
2266 | * the service cgroup any longer than necessary */ | |
4ad49000 | 2267 | service_kill_control_processes(s); |
88f3e0c9 | 2268 | |
34e9ba66 LP |
2269 | if (s->control_command && |
2270 | s->control_command->command_next && | |
f42806df | 2271 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
2272 | |
2273 | /* There is another command to * | |
2274 | * execute, so let's do that. */ | |
2275 | ||
8bb2d17d | 2276 | log_debug_unit(u->id, "%s running next control command for state %s", u->id, service_state_to_string(s->state)); |
f42806df | 2277 | service_run_next_control(s); |
034c6ed7 | 2278 | |
80876c20 | 2279 | } else { |
034c6ed7 LP |
2280 | /* No further commands for this step, so let's |
2281 | * figure out what to do next */ | |
2282 | ||
a16e1123 LP |
2283 | s->control_command = NULL; |
2284 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2285 | ||
8bb2d17d | 2286 | log_debug_unit(u->id, "%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state)); |
bd982a8b | 2287 | |
034c6ed7 LP |
2288 | switch (s->state) { |
2289 | ||
2290 | case SERVICE_START_PRE: | |
f42806df | 2291 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
2292 | service_enter_start(s); |
2293 | else | |
f42806df | 2294 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
034c6ed7 LP |
2295 | break; |
2296 | ||
2297 | case SERVICE_START: | |
bfba3256 LP |
2298 | if (s->type != SERVICE_FORKING) |
2299 | /* Maybe spurious event due to a reload that changed the type? */ | |
2300 | break; | |
034c6ed7 | 2301 | |
f42806df LP |
2302 | if (f != SERVICE_SUCCESS) { |
2303 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3a111838 MS |
2304 | break; |
2305 | } | |
034c6ed7 | 2306 | |
3a111838 | 2307 | if (s->pid_file) { |
f42806df LP |
2308 | bool has_start_post; |
2309 | int r; | |
2310 | ||
3a111838 MS |
2311 | /* Let's try to load the pid file here if we can. |
2312 | * The PID file might actually be created by a START_POST | |
2313 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
2314 | |
2315 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
2316 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
2317 | if (!has_start_post && r < 0) { |
2318 | r = service_demand_pid_file(s); | |
2319 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2320 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
2321 | break; |
2322 | } | |
034c6ed7 | 2323 | } else |
3a111838 | 2324 | service_search_main_pid(s); |
034c6ed7 | 2325 | |
3a111838 | 2326 | service_enter_start_post(s); |
034c6ed7 LP |
2327 | break; |
2328 | ||
2329 | case SERVICE_START_POST: | |
f42806df LP |
2330 | if (f != SERVICE_SUCCESS) { |
2331 | service_enter_stop(s, f); | |
2096e009 | 2332 | break; |
034c6ed7 LP |
2333 | } |
2334 | ||
2096e009 | 2335 | if (s->pid_file) { |
f42806df LP |
2336 | int r; |
2337 | ||
2338 | r = service_load_pid_file(s, true); | |
2096e009 MS |
2339 | if (r < 0) { |
2340 | r = service_demand_pid_file(s); | |
2341 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2342 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
2096e009 MS |
2343 | break; |
2344 | } | |
2345 | } else | |
2346 | service_search_main_pid(s); | |
2347 | ||
f42806df | 2348 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 2349 | break; |
034c6ed7 LP |
2350 | |
2351 | case SERVICE_RELOAD: | |
f42806df | 2352 | if (f == SERVICE_SUCCESS) { |
5375410b | 2353 | service_load_pid_file(s, true); |
3185a36b LP |
2354 | service_search_main_pid(s); |
2355 | } | |
2356 | ||
f42806df LP |
2357 | s->reload_result = f; |
2358 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2359 | break; |
2360 | ||
2361 | case SERVICE_STOP: | |
f42806df | 2362 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
2363 | break; |
2364 | ||
2365 | case SERVICE_STOP_SIGTERM: | |
2366 | case SERVICE_STOP_SIGKILL: | |
2367 | if (main_pid_good(s) <= 0) | |
f42806df | 2368 | service_enter_stop_post(s, f); |
034c6ed7 LP |
2369 | |
2370 | /* If there is still a service | |
2371 | * process around, wait until | |
2372 | * that one quit, too */ | |
2373 | break; | |
2374 | ||
2375 | case SERVICE_STOP_POST: | |
2376 | case SERVICE_FINAL_SIGTERM: | |
2377 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
2378 | if (main_pid_good(s) <= 0) |
2379 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
2380 | break; |
2381 | ||
2382 | default: | |
2383 | assert_not_reached("Uh, control process died at wrong time."); | |
2384 | } | |
2385 | } | |
8c47c732 | 2386 | } |
c4e2ceae LP |
2387 | |
2388 | /* Notify clients about changed exit status */ | |
2389 | unit_add_to_dbus_queue(u); | |
a911bb9a LP |
2390 | |
2391 | /* We got one SIGCHLD for the service, let's watch all | |
2392 | * processes that are now running of the service, and watch | |
2393 | * that. Among the PIDs we then watch will be children | |
2394 | * reassigned to us, which hopefully allows us to identify | |
2395 | * when all children are gone */ | |
2396 | unit_tidy_watch_pids(u, s->main_pid, s->control_pid); | |
2397 | unit_watch_all_pids(u); | |
2398 | ||
2399 | /* If the PID set is empty now, then let's finish this off */ | |
2400 | if (set_isempty(u->pids)) | |
2401 | service_notify_cgroup_empty_event(u); | |
034c6ed7 LP |
2402 | } |
2403 | ||
718db961 LP |
2404 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
2405 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
2406 | |
2407 | assert(s); | |
718db961 | 2408 | assert(source == s->timer_event_source); |
034c6ed7 LP |
2409 | |
2410 | switch (s->state) { | |
2411 | ||
2412 | case SERVICE_START_PRE: | |
2413 | case SERVICE_START: | |
8bb2d17d | 2414 | log_warning_unit(UNIT(s)->id, "%s %s operation timed out. Terminating.", UNIT(s)->id, s->state == SERVICE_START ? "start" : "start-pre"); |
f42806df | 2415 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
2416 | break; |
2417 | ||
034c6ed7 | 2418 | case SERVICE_START_POST: |
8bb2d17d | 2419 | log_warning_unit(UNIT(s)->id, "%s start-post operation timed out. Stopping.", UNIT(s)->id); |
f42806df | 2420 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2421 | break; |
2422 | ||
e2f3b44c | 2423 | case SERVICE_RELOAD: |
8bb2d17d | 2424 | log_warning_unit(UNIT(s)->id, "%s reload operation timed out. Stopping.", UNIT(s)->id); |
f42806df LP |
2425 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
2426 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
2427 | break; |
2428 | ||
034c6ed7 | 2429 | case SERVICE_STOP: |
8bb2d17d | 2430 | log_warning_unit(UNIT(s)->id, "%s stopping timed out. Terminating.", UNIT(s)->id); |
f42806df | 2431 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2432 | break; |
2433 | ||
2434 | case SERVICE_STOP_SIGTERM: | |
4819ff03 | 2435 | if (s->kill_context.send_sigkill) { |
8bb2d17d | 2436 | log_warning_unit(UNIT(s)->id, "%s stop-sigterm timed out. Killing.", UNIT(s)->id); |
f42806df | 2437 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2438 | } else { |
8bb2d17d | 2439 | log_warning_unit(UNIT(s)->id, "%s stop-sigterm timed out. Skipping SIGKILL.", UNIT(s)->id); |
f42806df | 2440 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
2441 | } |
2442 | ||
034c6ed7 LP |
2443 | break; |
2444 | ||
2445 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 2446 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
2447 | * Must be something we cannot kill, so let's just be |
2448 | * weirded out and continue */ | |
2449 | ||
8bb2d17d | 2450 | log_warning_unit(UNIT(s)->id, "%s still around after SIGKILL. Ignoring.", UNIT(s)->id); |
f42806df | 2451 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2452 | break; |
2453 | ||
2454 | case SERVICE_STOP_POST: | |
8bb2d17d | 2455 | log_warning_unit(UNIT(s)->id, "%s stop-post timed out. Terminating.", UNIT(s)->id); |
f42806df | 2456 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2457 | break; |
2458 | ||
2459 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 2460 | if (s->kill_context.send_sigkill) { |
8bb2d17d | 2461 | log_warning_unit(UNIT(s)->id, "%s stop-final-sigterm timed out. Killing.", UNIT(s)->id); |
f42806df | 2462 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2463 | } else { |
8bb2d17d | 2464 | log_warning_unit(UNIT(s)->id, "%s stop-final-sigterm timed out. Skipping SIGKILL. Entering failed mode.", UNIT(s)->id); |
f42806df | 2465 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
2466 | } |
2467 | ||
034c6ed7 LP |
2468 | break; |
2469 | ||
2470 | case SERVICE_FINAL_SIGKILL: | |
8bb2d17d | 2471 | log_warning_unit(UNIT(s)->id, "%s still around after final SIGKILL. Entering failed mode.", UNIT(s)->id); |
f42806df | 2472 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
2473 | break; |
2474 | ||
2475 | case SERVICE_AUTO_RESTART: | |
718db961 | 2476 | log_info_unit(UNIT(s)->id, |
ef417cfd ZJS |
2477 | s->restart_usec > 0 ? |
2478 | "%s holdoff time over, scheduling restart." : | |
2479 | "%s has no holdoff time, scheduling restart.", | |
2480 | UNIT(s)->id); | |
034c6ed7 LP |
2481 | service_enter_restart(s); |
2482 | break; | |
2483 | ||
2484 | default: | |
2485 | assert_not_reached("Timeout at wrong time."); | |
2486 | } | |
718db961 LP |
2487 | |
2488 | return 0; | |
2489 | } | |
2490 | ||
2491 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
2492 | Service *s = SERVICE(userdata); | |
a7850c7d | 2493 | char t[FORMAT_TIMESPAN_MAX]; |
718db961 LP |
2494 | |
2495 | assert(s); | |
2496 | assert(source == s->watchdog_event_source); | |
2497 | ||
8bb2d17d | 2498 | log_error_unit(UNIT(s)->id, "%s watchdog timeout (limit %s)!", UNIT(s)->id, |
a7850c7d | 2499 | format_timespan(t, sizeof(t), s->watchdog_usec, 1)); |
8bb2d17d | 2500 | |
842129f5 LP |
2501 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_WATCHDOG); |
2502 | ||
718db961 | 2503 | return 0; |
5cb5a6ff LP |
2504 | } |
2505 | ||
c952c6ec | 2506 | static void service_notify_message(Unit *u, pid_t pid, char **tags) { |
8c47c732 | 2507 | Service *s = SERVICE(u); |
308d72dc | 2508 | _cleanup_free_ char *cc = NULL; |
30b5275a | 2509 | bool notify_dbus = false; |
308d72dc | 2510 | const char *e; |
8c47c732 LP |
2511 | |
2512 | assert(u); | |
2513 | ||
308d72dc LP |
2514 | cc = strv_join(tags, ", "); |
2515 | log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT" (%s)", | |
2516 | u->id, pid, isempty(cc) ? "n/a" : cc); | |
da13d4d2 | 2517 | |
c952c6ec | 2518 | if (s->notify_access == NOTIFY_NONE) { |
8bb2d17d | 2519 | log_warning_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception is disabled.", u->id, pid); |
c952c6ec LP |
2520 | return; |
2521 | } | |
2522 | ||
336c6e46 | 2523 | if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { |
336c6e46 LP |
2524 | if (s->main_pid != 0) |
2525 | log_warning_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT, u->id, pid, s->main_pid); | |
2526 | else | |
3a33e61d | 2527 | log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception only permitted for main PID which is currently not known", u->id, pid); |
c952c6ec LP |
2528 | return; |
2529 | } | |
2530 | ||
8c47c732 | 2531 | /* Interpret MAINPID= */ |
28849dba | 2532 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 2533 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
28849dba | 2534 | if (parse_pid(e, &pid) < 0) |
5e56b378 | 2535 | log_warning_unit(u->id, "Failed to parse MAINPID= field in notification message: %s", e); |
8c47c732 | 2536 | else { |
28849dba LP |
2537 | log_debug_unit(u->id, "%s: got MAINPID=%s", u->id, e); |
2538 | ||
5925dd3c | 2539 | service_set_main_pid(s, pid); |
7400b9d2 | 2540 | unit_watch_pid(UNIT(s), pid); |
30b5275a | 2541 | notify_dbus = true; |
8c47c732 LP |
2542 | } |
2543 | } | |
2544 | ||
308d72dc LP |
2545 | /* Interpret RELOADING= */ |
2546 | if (strv_find(tags, "RELOADING=1")) { | |
2547 | ||
2548 | log_debug_unit(u->id, "%s: got RELOADING=1", u->id); | |
2549 | s->notify_state = NOTIFY_RELOADING; | |
2550 | ||
2551 | if (s->state == SERVICE_RUNNING) | |
2552 | service_enter_reload_by_notify(s); | |
2553 | ||
2554 | notify_dbus = true; | |
2555 | } | |
2556 | ||
8c47c732 | 2557 | /* Interpret READY= */ |
308d72dc LP |
2558 | if (strv_find(tags, "READY=1")) { |
2559 | ||
30b5275a | 2560 | log_debug_unit(u->id, "%s: got READY=1", u->id); |
308d72dc LP |
2561 | s->notify_state = NOTIFY_READY; |
2562 | ||
2563 | /* Type=notify services inform us about completed | |
2564 | * initialization with READY=1 */ | |
2565 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
2566 | service_enter_start_post(s); | |
2567 | ||
2568 | /* Sending READY=1 while we are reloading informs us | |
2569 | * that the reloading is complete */ | |
2570 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
2571 | service_enter_running(s, SERVICE_SUCCESS); | |
2572 | ||
2573 | notify_dbus = true; | |
2574 | } | |
2575 | ||
2576 | /* Interpret STOPPING= */ | |
2577 | if (strv_find(tags, "STOPPING=1")) { | |
2578 | ||
2579 | log_debug_unit(u->id, "%s: got STOPPING=1", u->id); | |
2580 | s->notify_state = NOTIFY_STOPPING; | |
2581 | ||
2582 | if (s->state == SERVICE_RUNNING) | |
2583 | service_enter_stop_by_notify(s); | |
2584 | ||
30b5275a | 2585 | notify_dbus = true; |
8c47c732 LP |
2586 | } |
2587 | ||
2588 | /* Interpret STATUS= */ | |
28849dba | 2589 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 2590 | if (e) { |
28849dba | 2591 | _cleanup_free_ char *t = NULL; |
8c47c732 | 2592 | |
28849dba LP |
2593 | if (!isempty(e)) { |
2594 | if (!utf8_is_valid(e)) | |
30b5275a | 2595 | log_warning_unit(u->id, "Status message in notification is not UTF-8 clean."); |
28849dba LP |
2596 | else { |
2597 | log_debug_unit(u->id, "%s: got STATUS=%s", u->id, e); | |
7f110ff9 | 2598 | |
28849dba LP |
2599 | t = strdup(e); |
2600 | if (!t) | |
2601 | log_oom(); | |
3a2776bc | 2602 | } |
28849dba | 2603 | } |
8c47c732 | 2604 | |
30b5275a | 2605 | if (!streq_ptr(s->status_text, t)) { |
28849dba | 2606 | |
3a2776bc LP |
2607 | free(s->status_text); |
2608 | s->status_text = t; | |
28849dba LP |
2609 | t = NULL; |
2610 | ||
30b5275a | 2611 | notify_dbus = true; |
28849dba | 2612 | } |
8c47c732 | 2613 | } |
842129f5 | 2614 | |
4774e357 | 2615 | /* Interpret ERRNO= */ |
28849dba | 2616 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
2617 | if (e) { |
2618 | int status_errno; | |
2619 | ||
28849dba | 2620 | if (safe_atoi(e, &status_errno) < 0 || status_errno < 0) |
4774e357 MAA |
2621 | log_warning_unit(u->id, "Failed to parse ERRNO= field in notification message: %s", e); |
2622 | else { | |
28849dba | 2623 | log_debug_unit(u->id, "%s: got ERRNO=%s", u->id, e); |
4774e357 MAA |
2624 | |
2625 | if (s->status_errno != status_errno) { | |
2626 | s->status_errno = status_errno; | |
2627 | notify_dbus = true; | |
2628 | } | |
2629 | } | |
2630 | } | |
2631 | ||
6f285378 | 2632 | /* Interpret WATCHDOG= */ |
a6927d7f | 2633 | if (strv_find(tags, "WATCHDOG=1")) { |
842129f5 LP |
2634 | log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id); |
2635 | service_reset_watchdog(s); | |
a6927d7f | 2636 | } |
c4e2ceae LP |
2637 | |
2638 | /* Notify clients about changed status or main pid */ | |
30b5275a LP |
2639 | if (notify_dbus) |
2640 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
2641 | } |
2642 | ||
68db7a3b ZJS |
2643 | static int service_get_timeout(Unit *u, uint64_t *timeout) { |
2644 | Service *s = SERVICE(u); | |
2645 | int r; | |
2646 | ||
2647 | if (!s->timer_event_source) | |
2648 | return 0; | |
2649 | ||
2650 | r = sd_event_source_get_time(s->timer_event_source, timeout); | |
2651 | if (r < 0) | |
2652 | return r; | |
2653 | ||
2654 | return 1; | |
2655 | } | |
2656 | ||
05e343b7 LP |
2657 | static void service_bus_name_owner_change( |
2658 | Unit *u, | |
2659 | const char *name, | |
2660 | const char *old_owner, | |
2661 | const char *new_owner) { | |
2662 | ||
2663 | Service *s = SERVICE(u); | |
718db961 | 2664 | int r; |
05e343b7 LP |
2665 | |
2666 | assert(s); | |
2667 | assert(name); | |
2668 | ||
2669 | assert(streq(s->bus_name, name)); | |
2670 | assert(old_owner || new_owner); | |
2671 | ||
2672 | if (old_owner && new_owner) | |
8bb2d17d | 2673 | log_debug_unit(u->id, "%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner); |
05e343b7 | 2674 | else if (old_owner) |
8bb2d17d | 2675 | log_debug_unit(u->id, "%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner); |
05e343b7 | 2676 | else |
8bb2d17d | 2677 | log_debug_unit(u->id, "%s's D-Bus name %s now registered by %s", u->id, name, new_owner); |
05e343b7 LP |
2678 | |
2679 | s->bus_name_good = !!new_owner; | |
2680 | ||
2681 | if (s->type == SERVICE_DBUS) { | |
2682 | ||
2683 | /* service_enter_running() will figure out what to | |
2684 | * do */ | |
2685 | if (s->state == SERVICE_RUNNING) | |
f42806df | 2686 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
2687 | else if (s->state == SERVICE_START && new_owner) |
2688 | service_enter_start_post(s); | |
2689 | ||
2690 | } else if (new_owner && | |
2691 | s->main_pid <= 0 && | |
2692 | (s->state == SERVICE_START || | |
2693 | s->state == SERVICE_START_POST || | |
2694 | s->state == SERVICE_RUNNING || | |
2695 | s->state == SERVICE_RELOAD)) { | |
2696 | ||
5b12334d | 2697 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
718db961 | 2698 | pid_t pid; |
05e343b7 | 2699 | |
718db961 | 2700 | /* Try to acquire PID from bus service */ |
05e343b7 | 2701 | |
49b832c5 | 2702 | r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
2703 | if (r >= 0) |
2704 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 LP |
2705 | if (r >= 0) { |
2706 | log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid); | |
05e343b7 | 2707 | |
718db961 LP |
2708 | service_set_main_pid(s, pid); |
2709 | unit_watch_pid(UNIT(s), pid); | |
2710 | } | |
7400b9d2 | 2711 | } |
05e343b7 LP |
2712 | } |
2713 | ||
6cf6bbc2 | 2714 | int service_set_socket_fd(Service *s, int fd, Socket *sock) { |
79a98c60 LP |
2715 | _cleanup_free_ char *peer = NULL; |
2716 | int r; | |
57020a3a | 2717 | |
4f2d528d LP |
2718 | assert(s); |
2719 | assert(fd >= 0); | |
2720 | ||
2721 | /* This is called by the socket code when instantiating a new | |
2722 | * service for a stream socket and the socket needs to be | |
2723 | * configured. */ | |
2724 | ||
1124fe6f | 2725 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
2726 | return -EINVAL; |
2727 | ||
2728 | if (s->socket_fd >= 0) | |
2729 | return -EBUSY; | |
2730 | ||
2731 | if (s->state != SERVICE_DEAD) | |
2732 | return -EAGAIN; | |
2733 | ||
79a98c60 LP |
2734 | if (getpeername_pretty(fd, &peer) >= 0) { |
2735 | ||
2736 | if (UNIT(s)->description) { | |
2737 | _cleanup_free_ char *a; | |
2738 | ||
2739 | a = strjoin(UNIT(s)->description, " (", peer, ")", NULL); | |
2740 | if (!a) | |
2741 | return -ENOMEM; | |
2742 | ||
2743 | r = unit_set_description(UNIT(s), a); | |
2744 | } else | |
2745 | r = unit_set_description(UNIT(s), peer); | |
2746 | ||
2747 | if (r < 0) | |
2748 | return r; | |
2749 | } | |
2750 | ||
4f2d528d | 2751 | s->socket_fd = fd; |
6cf6bbc2 | 2752 | |
57020a3a LP |
2753 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
2754 | ||
2755 | return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); | |
4f2d528d LP |
2756 | } |
2757 | ||
fdf20a31 | 2758 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
2759 | Service *s = SERVICE(u); |
2760 | ||
2761 | assert(s); | |
2762 | ||
fdf20a31 | 2763 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
2764 | service_set_state(s, SERVICE_DEAD); |
2765 | ||
f42806df LP |
2766 | s->result = SERVICE_SUCCESS; |
2767 | s->reload_result = SERVICE_SUCCESS; | |
451b34cc LP |
2768 | |
2769 | RATELIMIT_RESET(s->start_limit); | |
5632e374 LP |
2770 | } |
2771 | ||
718db961 | 2772 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 2773 | Service *s = SERVICE(u); |
41efeaec | 2774 | |
814cc562 | 2775 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
2776 | } |
2777 | ||
94f04347 LP |
2778 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { |
2779 | [SERVICE_DEAD] = "dead", | |
2780 | [SERVICE_START_PRE] = "start-pre", | |
2781 | [SERVICE_START] = "start", | |
2782 | [SERVICE_START_POST] = "start-post", | |
2783 | [SERVICE_RUNNING] = "running", | |
80876c20 | 2784 | [SERVICE_EXITED] = "exited", |
94f04347 LP |
2785 | [SERVICE_RELOAD] = "reload", |
2786 | [SERVICE_STOP] = "stop", | |
2787 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
2788 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
2789 | [SERVICE_STOP_POST] = "stop-post", | |
2790 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
2791 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
fdf20a31 | 2792 | [SERVICE_FAILED] = "failed", |
94f04347 LP |
2793 | [SERVICE_AUTO_RESTART] = "auto-restart", |
2794 | }; | |
2795 | ||
2796 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
2797 | ||
2798 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { | |
525ee6f4 LP |
2799 | [SERVICE_RESTART_NO] = "no", |
2800 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 2801 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 2802 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 2803 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 2804 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 2805 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
2806 | }; |
2807 | ||
2808 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
2809 | ||
2810 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 2811 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 2812 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 2813 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 2814 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
2815 | [SERVICE_NOTIFY] = "notify", |
2816 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
2817 | }; |
2818 | ||
2819 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
2820 | ||
e537352b | 2821 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
2822 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
2823 | [SERVICE_EXEC_START] = "ExecStart", | |
2824 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
2825 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
2826 | [SERVICE_EXEC_STOP] = "ExecStop", | |
2827 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
2828 | }; | |
2829 | ||
2830 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
2831 | ||
c952c6ec LP |
2832 | static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = { |
2833 | [NOTIFY_NONE] = "none", | |
2834 | [NOTIFY_MAIN] = "main", | |
2835 | [NOTIFY_ALL] = "all" | |
2836 | }; | |
2837 | ||
2838 | DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess); | |
2839 | ||
308d72dc LP |
2840 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
2841 | [NOTIFY_UNKNOWN] = "unknown", | |
2842 | [NOTIFY_READY] = "ready", | |
2843 | [NOTIFY_RELOADING] = "reloading", | |
2844 | [NOTIFY_STOPPING] = "stopping", | |
2845 | }; | |
2846 | ||
2847 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
2848 | ||
f42806df LP |
2849 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
2850 | [SERVICE_SUCCESS] = "success", | |
2851 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
2852 | [SERVICE_FAILURE_TIMEOUT] = "timeout", | |
2853 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
2854 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 2855 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a LP |
2856 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
2857 | [SERVICE_FAILURE_START_LIMIT] = "start-limit" | |
f42806df LP |
2858 | }; |
2859 | ||
2860 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
2861 | ||
87f0e418 | 2862 | const UnitVTable service_vtable = { |
7d17cfbc | 2863 | .object_size = sizeof(Service), |
718db961 LP |
2864 | .exec_context_offset = offsetof(Service, exec_context), |
2865 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
2866 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 2867 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
3ef63c31 | 2868 | |
f975e971 LP |
2869 | .sections = |
2870 | "Unit\0" | |
2871 | "Service\0" | |
2872 | "Install\0", | |
4ad49000 | 2873 | .private_section = "Service", |
71645aca | 2874 | |
034c6ed7 LP |
2875 | .init = service_init, |
2876 | .done = service_done, | |
a16e1123 LP |
2877 | .load = service_load, |
2878 | ||
2879 | .coldplug = service_coldplug, | |
034c6ed7 | 2880 | |
5cb5a6ff LP |
2881 | .dump = service_dump, |
2882 | ||
2883 | .start = service_start, | |
2884 | .stop = service_stop, | |
2885 | .reload = service_reload, | |
2886 | ||
034c6ed7 LP |
2887 | .can_reload = service_can_reload, |
2888 | ||
8a0867d6 LP |
2889 | .kill = service_kill, |
2890 | ||
a16e1123 LP |
2891 | .serialize = service_serialize, |
2892 | .deserialize_item = service_deserialize_item, | |
2893 | ||
5cb5a6ff | 2894 | .active_state = service_active_state, |
10a94420 | 2895 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 2896 | |
701cc384 LP |
2897 | .check_gc = service_check_gc, |
2898 | .check_snapshot = service_check_snapshot, | |
2899 | ||
034c6ed7 | 2900 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 2901 | |
fdf20a31 | 2902 | .reset_failed = service_reset_failed, |
5632e374 | 2903 | |
4ad49000 | 2904 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 2905 | .notify_message = service_notify_message, |
8e274523 | 2906 | |
05e343b7 | 2907 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 2908 | |
c4e2ceae | 2909 | .bus_interface = "org.freedesktop.systemd1.Service", |
718db961 | 2910 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
2911 | .bus_set_property = bus_service_set_property, |
2912 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 2913 | |
68db7a3b | 2914 | .get_timeout = service_get_timeout, |
718db961 LP |
2915 | .can_transient = true, |
2916 | ||
c6918296 MS |
2917 | .status_message_formats = { |
2918 | .starting_stopping = { | |
2919 | [0] = "Starting %s...", | |
2920 | [1] = "Stopping %s...", | |
2921 | }, | |
2922 | .finished_start_job = { | |
2923 | [JOB_DONE] = "Started %s.", | |
2924 | [JOB_FAILED] = "Failed to start %s.", | |
2925 | [JOB_DEPENDENCY] = "Dependency failed for %s.", | |
2926 | [JOB_TIMEOUT] = "Timed out starting %s.", | |
2927 | }, | |
2928 | .finished_stop_job = { | |
2929 | [JOB_DONE] = "Stopped %s.", | |
2930 | [JOB_FAILED] = "Stopped (with error) %s.", | |
2931 | [JOB_TIMEOUT] = "Timed out stopping %s.", | |
2932 | }, | |
2933 | }, | |
5cb5a6ff | 2934 | }; |