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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> | |
4b939747 | 26 | #include <sys/reboot.h> |
efe6e7d3 MO |
27 | #include <linux/reboot.h> |
28 | #include <sys/syscall.h> | |
5cb5a6ff | 29 | |
574634bc | 30 | #include "async.h" |
4b939747 | 31 | #include "manager.h" |
87f0e418 | 32 | #include "unit.h" |
5cb5a6ff LP |
33 | #include "service.h" |
34 | #include "load-fragment.h" | |
35 | #include "load-dropin.h" | |
034c6ed7 | 36 | #include "log.h" |
2c4104f0 | 37 | #include "strv.h" |
9e2f7c11 | 38 | #include "unit-name.h" |
41f9172f | 39 | #include "unit-printf.h" |
4139c1b2 | 40 | #include "dbus-service.h" |
514f4ef5 | 41 | #include "special.h" |
9a57c629 | 42 | #include "exit-status.h" |
f6a6225e | 43 | #include "def.h" |
9eb977db | 44 | #include "path-util.h" |
f6a6225e | 45 | #include "util.h" |
7f110ff9 | 46 | #include "utf8.h" |
4d1a6904 | 47 | #include "env-util.h" |
a5c32cff | 48 | #include "fileio.h" |
718db961 LP |
49 | #include "bus-error.h" |
50 | #include "bus-util.h" | |
034c6ed7 | 51 | |
acbb0225 | 52 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 LP |
53 | [SERVICE_DEAD] = UNIT_INACTIVE, |
54 | [SERVICE_START_PRE] = UNIT_ACTIVATING, | |
55 | [SERVICE_START] = UNIT_ACTIVATING, | |
56 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
57 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 58 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 59 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 LP |
60 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
61 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, | |
62 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
63 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
64 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
65 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 66 | [SERVICE_FAILED] = UNIT_FAILED, |
6124958c | 67 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING |
034c6ed7 | 68 | }; |
5cb5a6ff | 69 | |
e056b01d LP |
70 | /* For Type=idle we never want to delay any other jobs, hence we |
71 | * consider idle jobs active as soon as we start working on them */ | |
72 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
73 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
74 | [SERVICE_START_PRE] = UNIT_ACTIVE, | |
75 | [SERVICE_START] = UNIT_ACTIVE, | |
76 | [SERVICE_START_POST] = UNIT_ACTIVE, | |
77 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
78 | [SERVICE_EXITED] = UNIT_ACTIVE, | |
79 | [SERVICE_RELOAD] = UNIT_RELOADING, | |
80 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
81 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, | |
82 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
83 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
84 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
85 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
86 | [SERVICE_FAILED] = UNIT_FAILED, | |
87 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING | |
88 | }; | |
89 | ||
718db961 LP |
90 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
91 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); | |
92 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); | |
93 | ||
842129f5 LP |
94 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
95 | ||
a16e1123 LP |
96 | static void service_init(Unit *u) { |
97 | Service *s = SERVICE(u); | |
98 | ||
99 | assert(u); | |
ac155bb8 | 100 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 101 | |
1f19a534 OS |
102 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
103 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
104 | s->restart_usec = u->manager->default_restart_usec; | |
0b86feac | 105 | s->type = _SERVICE_TYPE_INVALID; |
a16e1123 | 106 | s->socket_fd = -1; |
3185a36b | 107 | s->guess_main_pid = true; |
a16e1123 | 108 | |
085afe36 | 109 | RATELIMIT_INIT(s->start_limit, u->manager->default_start_limit_interval, u->manager->default_start_limit_burst); |
a16e1123 LP |
110 | |
111 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
112 | } | |
113 | ||
5e94833f LP |
114 | static void service_unwatch_control_pid(Service *s) { |
115 | assert(s); | |
116 | ||
117 | if (s->control_pid <= 0) | |
118 | return; | |
119 | ||
120 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
121 | s->control_pid = 0; | |
122 | } | |
123 | ||
124 | static void service_unwatch_main_pid(Service *s) { | |
125 | assert(s); | |
126 | ||
127 | if (s->main_pid <= 0) | |
128 | return; | |
129 | ||
130 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
131 | s->main_pid = 0; | |
132 | } | |
133 | ||
3e52541e MS |
134 | static void service_unwatch_pid_file(Service *s) { |
135 | if (!s->pid_file_pathspec) | |
136 | return; | |
137 | ||
8bb2d17d | 138 | log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path); |
718db961 | 139 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e MS |
140 | path_spec_done(s->pid_file_pathspec); |
141 | free(s->pid_file_pathspec); | |
142 | s->pid_file_pathspec = NULL; | |
143 | } | |
144 | ||
5925dd3c | 145 | static int service_set_main_pid(Service *s, pid_t pid) { |
e55224ca LP |
146 | pid_t ppid; |
147 | ||
5925dd3c LP |
148 | assert(s); |
149 | ||
150 | if (pid <= 1) | |
151 | return -EINVAL; | |
152 | ||
153 | if (pid == getpid()) | |
154 | return -EINVAL; | |
155 | ||
7400b9d2 LP |
156 | if (s->main_pid == pid && s->main_pid_known) |
157 | return 0; | |
158 | ||
159 | if (s->main_pid != pid) { | |
160 | service_unwatch_main_pid(s); | |
161 | exec_status_start(&s->main_exec_status, pid); | |
162 | } | |
41efeaec | 163 | |
6dfa5494 LP |
164 | s->main_pid = pid; |
165 | s->main_pid_known = true; | |
166 | ||
167 | if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) { | |
8bb2d17d | 168 | 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 |
169 | s->main_pid_alien = true; |
170 | } else | |
171 | s->main_pid_alien = false; | |
5925dd3c LP |
172 | |
173 | return 0; | |
174 | } | |
175 | ||
4f2d528d LP |
176 | static void service_close_socket_fd(Service *s) { |
177 | assert(s); | |
178 | ||
574634bc | 179 | s->socket_fd = asynchronous_close(s->socket_fd); |
4f2d528d LP |
180 | } |
181 | ||
6cf6bbc2 LP |
182 | static void service_connection_unref(Service *s) { |
183 | assert(s); | |
184 | ||
9444b1f2 | 185 | if (!UNIT_ISSET(s->accept_socket)) |
6cf6bbc2 LP |
186 | return; |
187 | ||
57020a3a LP |
188 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); |
189 | unit_ref_unset(&s->accept_socket); | |
6cf6bbc2 LP |
190 | } |
191 | ||
a6927d7f MO |
192 | static void service_stop_watchdog(Service *s) { |
193 | assert(s); | |
194 | ||
718db961 | 195 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
842129f5 | 196 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
197 | } |
198 | ||
842129f5 | 199 | static void service_start_watchdog(Service *s) { |
bb242b7b MO |
200 | int r; |
201 | ||
202 | assert(s); | |
203 | ||
842129f5 | 204 | if (s->watchdog_usec <= 0) |
bb242b7b MO |
205 | return; |
206 | ||
718db961 LP |
207 | if (s->watchdog_event_source) { |
208 | r = sd_event_source_set_time(s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec); | |
209 | if (r < 0) { | |
210 | log_warning_unit(UNIT(s)->id, "%s failed to reset watchdog timer: %s", UNIT(s)->id, strerror(-r)); | |
211 | return; | |
212 | } | |
213 | ||
842129f5 | 214 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 215 | } else { |
6a0f1f6d LP |
216 | r = sd_event_add_time( |
217 | UNIT(s)->manager->event, | |
218 | &s->watchdog_event_source, | |
219 | CLOCK_MONOTONIC, | |
220 | s->watchdog_timestamp.monotonic + s->watchdog_usec, 0, | |
221 | service_dispatch_watchdog, s); | |
c4ef3317 LP |
222 | if (r < 0) { |
223 | log_warning_unit(UNIT(s)->id, "%s failed to add watchdog timer: %s", UNIT(s)->id, strerror(-r)); | |
224 | return; | |
225 | } | |
226 | ||
227 | /* Let's process everything else which might be a sign | |
228 | * of living before we consider a service died. */ | |
229 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
230 | } | |
718db961 | 231 | |
bb242b7b | 232 | if (r < 0) |
842129f5 | 233 | log_warning_unit(UNIT(s)->id, "%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r)); |
bb242b7b MO |
234 | } |
235 | ||
a6927d7f MO |
236 | static void service_reset_watchdog(Service *s) { |
237 | assert(s); | |
238 | ||
239 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 240 | service_start_watchdog(s); |
a6927d7f MO |
241 | } |
242 | ||
87f0e418 LP |
243 | static void service_done(Unit *u) { |
244 | Service *s = SERVICE(u); | |
44d8db9e LP |
245 | |
246 | assert(s); | |
247 | ||
248 | free(s->pid_file); | |
249 | s->pid_file = NULL; | |
250 | ||
8c47c732 LP |
251 | free(s->status_text); |
252 | s->status_text = NULL; | |
253 | ||
efe6e7d3 MO |
254 | free(s->reboot_arg); |
255 | s->reboot_arg = NULL; | |
256 | ||
613b411c | 257 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); |
e537352b | 258 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 259 | s->control_command = NULL; |
867b3b7d | 260 | s->main_command = NULL; |
44d8db9e | 261 | |
37520c1b LP |
262 | exit_status_set_free(&s->restart_prevent_status); |
263 | exit_status_set_free(&s->restart_force_status); | |
264 | exit_status_set_free(&s->success_status); | |
96342de6 | 265 | |
44d8db9e LP |
266 | /* This will leak a process, but at least no memory or any of |
267 | * our resources */ | |
5e94833f LP |
268 | service_unwatch_main_pid(s); |
269 | service_unwatch_control_pid(s); | |
3e52541e | 270 | service_unwatch_pid_file(s); |
44d8db9e | 271 | |
05e343b7 | 272 | if (s->bus_name) { |
ac155bb8 | 273 | unit_unwatch_bus_name(u, s->bus_name); |
05e343b7 LP |
274 | free(s->bus_name); |
275 | s->bus_name = NULL; | |
276 | } | |
277 | ||
4f2d528d | 278 | service_close_socket_fd(s); |
6cf6bbc2 | 279 | service_connection_unref(s); |
4f2d528d | 280 | |
57020a3a | 281 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 282 | |
bb242b7b MO |
283 | service_stop_watchdog(s); |
284 | ||
718db961 LP |
285 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
286 | } | |
287 | ||
288 | static int service_arm_timer(Service *s, usec_t usec) { | |
289 | int r; | |
290 | ||
291 | assert(s); | |
292 | ||
718db961 LP |
293 | if (s->timer_event_source) { |
294 | r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec); | |
295 | if (r < 0) | |
296 | return r; | |
297 | ||
298 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
299 | } | |
300 | ||
6a0f1f6d LP |
301 | return sd_event_add_time( |
302 | UNIT(s)->manager->event, | |
303 | &s->timer_event_source, | |
304 | CLOCK_MONOTONIC, | |
305 | now(CLOCK_MONOTONIC) + usec, 0, | |
306 | service_dispatch_timer, s); | |
44d8db9e LP |
307 | } |
308 | ||
243b1432 LP |
309 | static int service_verify(Service *s) { |
310 | assert(s); | |
311 | ||
1124fe6f | 312 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
313 | return 0; |
314 | ||
315 | if (!s->exec_command[SERVICE_EXEC_START]) { | |
ebc2259d | 316 | log_error_unit(UNIT(s)->id, "%s lacks ExecStart setting. Refusing.", UNIT(s)->id); |
243b1432 LP |
317 | return -EINVAL; |
318 | } | |
319 | ||
34e9ba66 LP |
320 | if (s->type != SERVICE_ONESHOT && |
321 | s->exec_command[SERVICE_EXEC_START]->command_next) { | |
ebc2259d | 322 | 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 |
323 | return -EINVAL; |
324 | } | |
325 | ||
b0693d30 | 326 | if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { |
37520c1b LP |
327 | 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); |
328 | return -EINVAL; | |
329 | } | |
330 | ||
55ebf98c | 331 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) { |
37520c1b | 332 | log_error_unit(UNIT(s)->id, "%s has RestartForceStatus= set, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id); |
b0693d30 MW |
333 | return -EINVAL; |
334 | } | |
335 | ||
05e343b7 | 336 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
ebc2259d | 337 | 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 |
338 | return -EINVAL; |
339 | } | |
340 | ||
7e2668c6 | 341 | if (s->bus_name && s->type != SERVICE_DBUS) |
ebc2259d | 342 | 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 | 343 | |
ebc2259d LP |
344 | if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) { |
345 | 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 |
346 | return -EINVAL; |
347 | } | |
348 | ||
243b1432 LP |
349 | return 0; |
350 | } | |
351 | ||
a40eb732 LP |
352 | static int service_add_default_dependencies(Service *s) { |
353 | int r; | |
354 | ||
355 | assert(s); | |
356 | ||
357 | /* Add a number of automatic dependencies useful for the | |
358 | * majority of services. */ | |
359 | ||
360 | /* First, pull in base system */ | |
8bb2d17d | 361 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true); |
fccd44ec KS |
362 | if (r < 0) |
363 | return r; | |
a40eb732 LP |
364 | |
365 | /* Second, activate normal shutdown */ | |
8bb2d17d | 366 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
117dcc57 | 367 | return r; |
a40eb732 LP |
368 | } |
369 | ||
4dfc092a LP |
370 | static void service_fix_output(Service *s) { |
371 | assert(s); | |
372 | ||
373 | /* If nothing has been explicitly configured, patch default | |
374 | * output in. If input is socket/tty we avoid this however, | |
375 | * since in that case we want output to default to the same | |
376 | * place as we read input from. */ | |
377 | ||
378 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
379 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
380 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 381 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
382 | |
383 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
384 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 385 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
386 | } |
387 | ||
e537352b | 388 | static int service_load(Unit *u) { |
e537352b | 389 | Service *s = SERVICE(u); |
8bb2d17d | 390 | int r; |
e537352b LP |
391 | |
392 | assert(s); | |
1e2e8133 | 393 | |
5cb5a6ff | 394 | /* Load a .service file */ |
c2756a68 LP |
395 | r = unit_load_fragment(u); |
396 | if (r < 0) | |
5cb5a6ff LP |
397 | return r; |
398 | ||
23a177ef | 399 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 400 | if (u->load_state == UNIT_STUB) |
23a177ef | 401 | return -ENOENT; |
034c6ed7 | 402 | |
23a177ef | 403 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 404 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
405 | |
406 | /* We were able to load something, then let's add in | |
407 | * the dropin directories. */ | |
408 | r = unit_load_dropin(u); | |
409 | if (r < 0) | |
410 | return r; | |
411 | ||
0b86feac LP |
412 | if (s->type == _SERVICE_TYPE_INVALID) |
413 | s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE; | |
414 | ||
d568a335 MS |
415 | /* Oneshot services have disabled start timeout by default */ |
416 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
417 | s->timeout_start_usec = 0; | |
98709151 | 418 | |
4e2b0f9b LP |
419 | service_fix_output(s); |
420 | ||
598459ce LP |
421 | r = unit_patch_contexts(u); |
422 | if (r < 0) | |
423 | return r; | |
424 | ||
117dcc57 ZJS |
425 | r = unit_add_exec_dependencies(u, &s->exec_context); |
426 | if (r < 0) | |
23a177ef LP |
427 | return r; |
428 | ||
598459ce | 429 | r = unit_add_default_slice(u, &s->cgroup_context); |
a016b922 LP |
430 | if (r < 0) |
431 | return r; | |
432 | ||
c952c6ec LP |
433 | if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) |
434 | s->notify_access = NOTIFY_MAIN; | |
a40eb732 | 435 | |
02c4ef9c LP |
436 | if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) |
437 | s->notify_access = NOTIFY_MAIN; | |
438 | ||
598459ce LP |
439 | if (s->bus_name) { |
440 | r = unit_watch_bus_name(u, s->bus_name); | |
117dcc57 | 441 | if (r < 0) |
a40eb732 | 442 | return r; |
117dcc57 | 443 | } |
e06c73cc | 444 | |
598459ce LP |
445 | if (u->default_dependencies) { |
446 | r = service_add_default_dependencies(s); | |
447 | if (r < 0) | |
817e224b | 448 | |
598459ce LP |
449 | return r; |
450 | } | |
8e274523 LP |
451 | } |
452 | ||
243b1432 | 453 | return service_verify(s); |
034c6ed7 LP |
454 | } |
455 | ||
87f0e418 | 456 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 457 | ServiceExecCommand c; |
87f0e418 | 458 | Service *s = SERVICE(u); |
47be870b | 459 | const char *prefix2; |
5cb5a6ff LP |
460 | |
461 | assert(s); | |
462 | ||
4c940960 LP |
463 | prefix = strempty(prefix); |
464 | prefix2 = strappenda(prefix, "\t"); | |
44d8db9e | 465 | |
5cb5a6ff | 466 | fprintf(f, |
81a2b7ce | 467 | "%sService State: %s\n" |
f42806df LP |
468 | "%sResult: %s\n" |
469 | "%sReload Result: %s\n" | |
81a2b7ce | 470 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 471 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 472 | "%sRemainAfterExit: %s\n" |
3185a36b | 473 | "%sGuessMainPID: %s\n" |
c952c6ec | 474 | "%sType: %s\n" |
2cf3143a | 475 | "%sRestart: %s\n" |
c952c6ec | 476 | "%sNotifyAccess: %s\n", |
81a2b7ce | 477 | prefix, service_state_to_string(s->state), |
f42806df LP |
478 | prefix, service_result_to_string(s->result), |
479 | prefix, service_result_to_string(s->reload_result), | |
81a2b7ce | 480 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 481 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 482 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 483 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 484 | prefix, service_type_to_string(s->type), |
2cf3143a | 485 | prefix, service_restart_to_string(s->restart), |
c952c6ec | 486 | prefix, notify_access_to_string(s->notify_access)); |
5cb5a6ff | 487 | |
70123e68 LP |
488 | if (s->control_pid > 0) |
489 | fprintf(f, | |
ccd06097 ZJS |
490 | "%sControl PID: "PID_FMT"\n", |
491 | prefix, s->control_pid); | |
70123e68 LP |
492 | |
493 | if (s->main_pid > 0) | |
494 | fprintf(f, | |
ccd06097 | 495 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
496 | "%sMain PID Known: %s\n" |
497 | "%sMain PID Alien: %s\n", | |
ccd06097 | 498 | prefix, s->main_pid, |
6dfa5494 LP |
499 | prefix, yes_no(s->main_pid_known), |
500 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 501 | |
034c6ed7 LP |
502 | if (s->pid_file) |
503 | fprintf(f, | |
504 | "%sPIDFile: %s\n", | |
505 | prefix, s->pid_file); | |
506 | ||
05e343b7 LP |
507 | if (s->bus_name) |
508 | fprintf(f, | |
509 | "%sBusName: %s\n" | |
510 | "%sBus Name Good: %s\n", | |
511 | prefix, s->bus_name, | |
512 | prefix, yes_no(s->bus_name_good)); | |
513 | ||
4819ff03 | 514 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
515 | exec_context_dump(&s->exec_context, f, prefix); |
516 | ||
e537352b | 517 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 518 | |
44d8db9e LP |
519 | if (!s->exec_command[c]) |
520 | continue; | |
521 | ||
40d50879 | 522 | fprintf(f, "%s-> %s:\n", |
94f04347 | 523 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
524 | |
525 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 526 | } |
44d8db9e | 527 | |
07459bb6 | 528 | #ifdef HAVE_SYSV_COMPAT |
2c4104f0 LP |
529 | if (s->sysv_start_priority >= 0) |
530 | fprintf(f, | |
9fff8a1f LP |
531 | "%sSysVStartPriority: %i\n", |
532 | prefix, s->sysv_start_priority); | |
07459bb6 | 533 | #endif |
23a177ef | 534 | |
8c47c732 LP |
535 | if (s->status_text) |
536 | fprintf(f, "%sStatus Text: %s\n", | |
537 | prefix, s->status_text); | |
5cb5a6ff LP |
538 | } |
539 | ||
c5419d42 | 540 | static int service_load_pid_file(Service *s, bool may_warn) { |
7fd1b19b | 541 | _cleanup_free_ char *k = NULL; |
034c6ed7 | 542 | int r; |
5925dd3c | 543 | pid_t pid; |
034c6ed7 LP |
544 | |
545 | assert(s); | |
546 | ||
034c6ed7 | 547 | if (!s->pid_file) |
13230d5d | 548 | return -ENOENT; |
034c6ed7 | 549 | |
117dcc57 ZJS |
550 | r = read_one_line_file(s->pid_file, &k); |
551 | if (r < 0) { | |
c5419d42 | 552 | if (may_warn) |
8bb2d17d | 553 | log_info_unit(UNIT(s)->id, "PID file %s not readable (yet?) after %s.", s->pid_file, service_state_to_string(s->state)); |
034c6ed7 | 554 | return r; |
5375410b | 555 | } |
034c6ed7 | 556 | |
5925dd3c | 557 | r = parse_pid(k, &pid); |
bc41f93e ZJS |
558 | if (r < 0) { |
559 | if (may_warn) | |
8bb2d17d | 560 | log_info_unit(UNIT(s)->id, "Failed to read PID from file %s: %s", s->pid_file, strerror(-r)); |
5925dd3c | 561 | return r; |
bc41f93e | 562 | } |
406eaf93 | 563 | |
9f5650ae | 564 | if (!pid_is_alive(pid)) { |
c5419d42 | 565 | if (may_warn) |
9f5650ae | 566 | 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 |
567 | return -ESRCH; |
568 | } | |
569 | ||
db01f8b3 MS |
570 | if (s->main_pid_known) { |
571 | if (pid == s->main_pid) | |
572 | return 0; | |
573 | ||
8bb2d17d LP |
574 | log_debug_unit(UNIT(s)->id, "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
575 | ||
db01f8b3 MS |
576 | service_unwatch_main_pid(s); |
577 | s->main_pid_known = false; | |
3a111838 | 578 | } else |
8bb2d17d | 579 | log_debug_unit(UNIT(s)->id, "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 580 | |
117dcc57 ZJS |
581 | r = service_set_main_pid(s, pid); |
582 | if (r < 0) | |
16f6025e LP |
583 | return r; |
584 | ||
117dcc57 | 585 | r = unit_watch_pid(UNIT(s), pid); |
bc41f93e | 586 | if (r < 0) { |
5925dd3c | 587 | /* FIXME: we need to do something here */ |
8bb2d17d | 588 | log_warning_unit(UNIT(s)->id, "Failed to watch PID "PID_FMT" from service %s", pid, UNIT(s)->id); |
5925dd3c | 589 | return r; |
bc41f93e | 590 | } |
034c6ed7 LP |
591 | |
592 | return 0; | |
593 | } | |
594 | ||
4fbf50b3 LP |
595 | static int service_search_main_pid(Service *s) { |
596 | pid_t pid; | |
597 | int r; | |
598 | ||
599 | assert(s); | |
600 | ||
3185a36b LP |
601 | /* If we know it anyway, don't ever fallback to unreliable |
602 | * heuristics */ | |
4fbf50b3 LP |
603 | if (s->main_pid_known) |
604 | return 0; | |
605 | ||
3185a36b LP |
606 | if (!s->guess_main_pid) |
607 | return 0; | |
608 | ||
4fbf50b3 LP |
609 | assert(s->main_pid <= 0); |
610 | ||
4ad49000 | 611 | pid = unit_search_main_pid(UNIT(s)); |
117dcc57 | 612 | if (pid <= 0) |
4fbf50b3 LP |
613 | return -ENOENT; |
614 | ||
8bb2d17d | 615 | log_debug_unit(UNIT(s)->id, "Main PID guessed: "PID_FMT, pid); |
117dcc57 ZJS |
616 | r = service_set_main_pid(s, pid); |
617 | if (r < 0) | |
4fbf50b3 LP |
618 | return r; |
619 | ||
117dcc57 | 620 | r = unit_watch_pid(UNIT(s), pid); |
8bb2d17d | 621 | if (r < 0) { |
4fbf50b3 | 622 | /* FIXME: we need to do something here */ |
8bb2d17d LP |
623 | log_warning_unit(UNIT(s)->id, "Failed to watch PID "PID_FMT" from service %s", pid, UNIT(s)->id); |
624 | return r; | |
625 | } | |
626 | ||
627 | return 0; | |
4fbf50b3 LP |
628 | } |
629 | ||
034c6ed7 LP |
630 | static void service_set_state(Service *s, ServiceState state) { |
631 | ServiceState old_state; | |
e056b01d | 632 | const UnitActiveState *table; |
842129f5 | 633 | |
5cb5a6ff LP |
634 | assert(s); |
635 | ||
e056b01d LP |
636 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
637 | ||
034c6ed7 | 638 | old_state = s->state; |
5cb5a6ff | 639 | s->state = state; |
034c6ed7 | 640 | |
3a111838 MS |
641 | service_unwatch_pid_file(s); |
642 | ||
842129f5 LP |
643 | if (!IN_SET(state, |
644 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
645 | SERVICE_RELOAD, | |
bf108e55 LP |
646 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, |
647 | SERVICE_STOP_POST, | |
842129f5 LP |
648 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
649 | SERVICE_AUTO_RESTART)) | |
718db961 | 650 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 651 | |
842129f5 LP |
652 | if (!IN_SET(state, |
653 | SERVICE_START, SERVICE_START_POST, | |
654 | SERVICE_RUNNING, SERVICE_RELOAD, | |
bf108e55 LP |
655 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, |
656 | SERVICE_STOP_POST, | |
657 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
5e94833f | 658 | service_unwatch_main_pid(s); |
867b3b7d LP |
659 | s->main_command = NULL; |
660 | } | |
034c6ed7 | 661 | |
842129f5 LP |
662 | if (!IN_SET(state, |
663 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
664 | SERVICE_RELOAD, | |
bf108e55 LP |
665 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, |
666 | SERVICE_STOP_POST, | |
842129f5 | 667 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 668 | service_unwatch_control_pid(s); |
034c6ed7 | 669 | s->control_command = NULL; |
a16e1123 | 670 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 671 | } |
034c6ed7 | 672 | |
a911bb9a LP |
673 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
674 | unit_unwatch_all_pids(UNIT(s)); | |
675 | ||
842129f5 LP |
676 | if (!IN_SET(state, |
677 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
678 | SERVICE_RUNNING, SERVICE_RELOAD, | |
679 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
680 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && | |
1124fe6f | 681 | !(state == SERVICE_DEAD && UNIT(s)->job)) { |
4f2d528d | 682 | service_close_socket_fd(s); |
6cf6bbc2 LP |
683 | service_connection_unref(s); |
684 | } | |
4f2d528d | 685 | |
7596e9e1 | 686 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
687 | service_stop_watchdog(s); |
688 | ||
f6023656 LP |
689 | /* For the inactive states unit_notify() will trim the cgroup, |
690 | * but for exit we have to do that ourselves... */ | |
1124fe6f | 691 | if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0) |
4ad49000 | 692 | unit_destroy_cgroup(UNIT(s)); |
f6023656 | 693 | |
9cd86184 OB |
694 | /* For remain_after_exit services, let's see if we can "release" the |
695 | * hold on the console, since unit_notify() only does that in case of | |
696 | * change of state */ | |
f49650ce LP |
697 | if (state == SERVICE_EXITED && |
698 | s->remain_after_exit && | |
9cd86184 | 699 | UNIT(s)->manager->n_on_console > 0) { |
f49650ce LP |
700 | |
701 | ExecContext *ec; | |
702 | ||
703 | ec = unit_get_exec_context(UNIT(s)); | |
9cd86184 OB |
704 | if (ec && exec_context_may_touch_console(ec)) { |
705 | Manager *m = UNIT(s)->manager; | |
706 | ||
707 | m->n_on_console --; | |
708 | if (m->n_on_console == 0) | |
709 | /* unset no_console_output flag, since the console is free */ | |
710 | m->no_console_output = false; | |
711 | } | |
712 | } | |
713 | ||
e537352b | 714 | if (old_state != state) |
842129f5 | 715 | 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 | 716 | |
e056b01d | 717 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
f42806df | 718 | s->reload_result = SERVICE_SUCCESS; |
034c6ed7 LP |
719 | } |
720 | ||
a16e1123 LP |
721 | static int service_coldplug(Unit *u) { |
722 | Service *s = SERVICE(u); | |
723 | int r; | |
724 | ||
725 | assert(s); | |
726 | assert(s->state == SERVICE_DEAD); | |
727 | ||
728 | if (s->deserialized_state != s->state) { | |
729 | ||
bf108e55 LP |
730 | if (IN_SET(s->deserialized_state, |
731 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
732 | SERVICE_RELOAD, | |
733 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, | |
734 | SERVICE_STOP_POST, | |
735 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
92c1622e LP |
736 | |
737 | usec_t k; | |
6c12b52e | 738 | |
bf108e55 | 739 | 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 | 740 | |
92c1622e LP |
741 | /* For the start/stop timeouts 0 means off */ |
742 | if (k > 0) { | |
743 | r = service_arm_timer(s, k); | |
36697dc0 | 744 | if (r < 0) |
e558336f LP |
745 | return r; |
746 | } | |
747 | } | |
a16e1123 | 748 | |
92c1622e LP |
749 | if (s->deserialized_state == SERVICE_AUTO_RESTART) { |
750 | ||
751 | /* The restart timeouts 0 means immediately */ | |
752 | r = service_arm_timer(s, s->restart_usec); | |
753 | if (r < 0) | |
754 | return r; | |
755 | } | |
756 | ||
9f5650ae | 757 | if (pid_is_unwaited(s->main_pid) && |
bf108e55 LP |
758 | ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) || |
759 | IN_SET(s->deserialized_state, | |
760 | SERVICE_START, SERVICE_START_POST, | |
761 | SERVICE_RUNNING, SERVICE_RELOAD, | |
762 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, | |
763 | SERVICE_STOP_POST, | |
764 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { | |
765 | r = unit_watch_pid(UNIT(s), s->main_pid); | |
766 | if (r < 0) | |
767 | return r; | |
768 | } | |
a16e1123 | 769 | |
9f5650ae | 770 | if (pid_is_unwaited(s->control_pid) && |
bf108e55 LP |
771 | IN_SET(s->deserialized_state, |
772 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
773 | SERVICE_RELOAD, | |
774 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, | |
775 | SERVICE_STOP_POST, | |
776 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
777 | r = unit_watch_pid(UNIT(s), s->control_pid); | |
778 | if (r < 0) | |
779 | return r; | |
780 | } | |
a16e1123 | 781 | |
a911bb9a LP |
782 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) |
783 | unit_watch_all_pids(UNIT(s)); | |
784 | ||
842129f5 LP |
785 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
786 | service_start_watchdog(s); | |
bb242b7b | 787 | |
a16e1123 LP |
788 | service_set_state(s, s->deserialized_state); |
789 | } | |
92c1622e | 790 | |
a16e1123 LP |
791 | return 0; |
792 | } | |
793 | ||
44d8db9e LP |
794 | static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { |
795 | Iterator i; | |
796 | int r; | |
797 | int *rfds = NULL; | |
798 | unsigned rn_fds = 0; | |
57020a3a | 799 | Unit *u; |
44d8db9e LP |
800 | |
801 | assert(s); | |
802 | assert(fds); | |
803 | assert(n_fds); | |
804 | ||
6cf6bbc2 LP |
805 | if (s->socket_fd >= 0) |
806 | return 0; | |
807 | ||
1124fe6f | 808 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
44d8db9e LP |
809 | int *cfds; |
810 | unsigned cn_fds; | |
57020a3a LP |
811 | Socket *sock; |
812 | ||
ac155bb8 | 813 | if (u->type != UNIT_SOCKET) |
57020a3a LP |
814 | continue; |
815 | ||
816 | sock = SOCKET(u); | |
44d8db9e | 817 | |
117dcc57 ZJS |
818 | r = socket_collect_fds(sock, &cfds, &cn_fds); |
819 | if (r < 0) | |
44d8db9e LP |
820 | goto fail; |
821 | ||
822 | if (!cfds) | |
823 | continue; | |
824 | ||
825 | if (!rfds) { | |
826 | rfds = cfds; | |
827 | rn_fds = cn_fds; | |
828 | } else { | |
829 | int *t; | |
830 | ||
117dcc57 ZJS |
831 | t = new(int, rn_fds+cn_fds); |
832 | if (!t) { | |
44d8db9e LP |
833 | free(cfds); |
834 | r = -ENOMEM; | |
835 | goto fail; | |
836 | } | |
837 | ||
9c1b183c LP |
838 | memcpy(t, rfds, rn_fds * sizeof(int)); |
839 | memcpy(t+rn_fds, cfds, cn_fds * sizeof(int)); | |
44d8db9e LP |
840 | free(rfds); |
841 | free(cfds); | |
842 | ||
843 | rfds = t; | |
844 | rn_fds = rn_fds+cn_fds; | |
845 | } | |
846 | } | |
847 | ||
848 | *fds = rfds; | |
849 | *n_fds = rn_fds; | |
3e33402a | 850 | |
44d8db9e LP |
851 | return 0; |
852 | ||
853 | fail: | |
854 | free(rfds); | |
3e33402a | 855 | |
44d8db9e LP |
856 | return r; |
857 | } | |
858 | ||
81a2b7ce LP |
859 | static int service_spawn( |
860 | Service *s, | |
861 | ExecCommand *c, | |
862 | bool timeout, | |
863 | bool pass_fds, | |
864 | bool apply_permissions, | |
865 | bool apply_chroot, | |
1e3ad081 | 866 | bool apply_tty_stdin, |
c952c6ec | 867 | bool set_notify_socket, |
ecedd90f | 868 | bool is_control, |
81a2b7ce LP |
869 | pid_t *_pid) { |
870 | ||
034c6ed7 LP |
871 | pid_t pid; |
872 | int r; | |
117dcc57 | 873 | int *fds = NULL; |
7fd1b19b | 874 | _cleanup_free_ int *fdsbuf = NULL; |
2105e76a | 875 | unsigned n_fds = 0, n_env = 0; |
7fd1b19b | 876 | _cleanup_strv_free_ char |
117dcc57 | 877 | **argv = NULL, **final_env = NULL, **our_env = NULL; |
4ad49000 | 878 | const char *path; |
034c6ed7 LP |
879 | |
880 | assert(s); | |
881 | assert(c); | |
882 | assert(_pid); | |
883 | ||
4ad49000 LP |
884 | unit_realize_cgroup(UNIT(s)); |
885 | ||
613b411c LP |
886 | r = unit_setup_exec_runtime(UNIT(s)); |
887 | if (r < 0) | |
888 | goto fail; | |
889 | ||
6cf6bbc2 LP |
890 | if (pass_fds || |
891 | s->exec_context.std_input == EXEC_INPUT_SOCKET || | |
892 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
893 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
894 | ||
4f2d528d LP |
895 | if (s->socket_fd >= 0) { |
896 | fds = &s->socket_fd; | |
897 | n_fds = 1; | |
6cf6bbc2 | 898 | } else { |
117dcc57 ZJS |
899 | r = service_collect_fds(s, &fdsbuf, &n_fds); |
900 | if (r < 0) | |
6cf6bbc2 LP |
901 | goto fail; |
902 | ||
903 | fds = fdsbuf; | |
904 | } | |
4f2d528d | 905 | } |
44d8db9e | 906 | |
92c1622e LP |
907 | if (timeout && s->timeout_start_usec > 0) { |
908 | r = service_arm_timer(s, s->timeout_start_usec); | |
909 | if (r < 0) | |
910 | goto fail; | |
911 | } else | |
912 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
034c6ed7 | 913 | |
19f6d710 LP |
914 | r = unit_full_printf_strv(UNIT(s), c->argv, &argv); |
915 | if (r < 0) | |
9e2f7c11 | 916 | goto fail; |
9e2f7c11 | 917 | |
09812eb7 | 918 | our_env = new0(char*, 4); |
97ae63e2 | 919 | if (!our_env) { |
2105e76a LP |
920 | r = -ENOMEM; |
921 | goto fail; | |
922 | } | |
c952c6ec | 923 | |
2105e76a | 924 | if (set_notify_socket) |
1124fe6f | 925 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) { |
c952c6ec LP |
926 | r = -ENOMEM; |
927 | goto fail; | |
928 | } | |
929 | ||
2105e76a | 930 | if (s->main_pid > 0) |
ccd06097 | 931 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) { |
c952c6ec LP |
932 | r = -ENOMEM; |
933 | goto fail; | |
934 | } | |
2105e76a | 935 | |
4ad49000 | 936 | if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM) |
ccd06097 | 937 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) { |
97ae63e2 LP |
938 | r = -ENOMEM; |
939 | goto fail; | |
940 | } | |
941 | ||
942 | final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL); | |
943 | if (!final_env) { | |
2105e76a LP |
944 | r = -ENOMEM; |
945 | goto fail; | |
946 | } | |
c952c6ec | 947 | |
4ad49000 LP |
948 | if (is_control && UNIT(s)->cgroup_path) { |
949 | path = strappenda(UNIT(s)->cgroup_path, "/control"); | |
950 | cg_create(SYSTEMD_CGROUP_CONTROLLER, path); | |
951 | } else | |
952 | path = UNIT(s)->cgroup_path; | |
953 | ||
9e2f7c11 LP |
954 | r = exec_spawn(c, |
955 | argv, | |
956 | &s->exec_context, | |
957 | fds, n_fds, | |
2105e76a | 958 | final_env, |
9e2f7c11 LP |
959 | apply_permissions, |
960 | apply_chroot, | |
1e3ad081 | 961 | apply_tty_stdin, |
1124fe6f | 962 | UNIT(s)->manager->confirm_spawn, |
13b84ec7 | 963 | UNIT(s)->manager->cgroup_supported, |
4ad49000 | 964 | path, |
e66cf1a3 | 965 | manager_get_runtime_prefix(UNIT(s)->manager), |
62bca2c6 | 966 | UNIT(s)->id, |
09812eb7 | 967 | s->watchdog_usec, |
f2b68789 | 968 | s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL, |
613b411c | 969 | s->exec_runtime, |
9e2f7c11 | 970 | &pid); |
9e2f7c11 | 971 | if (r < 0) |
034c6ed7 LP |
972 | goto fail; |
973 | ||
117dcc57 ZJS |
974 | r = unit_watch_pid(UNIT(s), pid); |
975 | if (r < 0) | |
034c6ed7 LP |
976 | /* FIXME: we need to do something here */ |
977 | goto fail; | |
978 | ||
979 | *_pid = pid; | |
980 | ||
5cb5a6ff | 981 | return 0; |
034c6ed7 LP |
982 | |
983 | fail: | |
984 | if (timeout) | |
718db961 | 985 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 LP |
986 | |
987 | return r; | |
988 | } | |
989 | ||
80876c20 LP |
990 | static int main_pid_good(Service *s) { |
991 | assert(s); | |
992 | ||
993 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
994 | * don't know */ | |
995 | ||
996 | /* If we know the pid file, then lets just check if it is | |
997 | * still valid */ | |
6dfa5494 LP |
998 | if (s->main_pid_known) { |
999 | ||
1000 | /* If it's an alien child let's check if it is still | |
1001 | * alive ... */ | |
62220cf7 | 1002 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1003 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1004 | |
1005 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1006 | * which we really should wait for to collect exit | |
1007 | * status and code */ | |
80876c20 | 1008 | return s->main_pid > 0; |
6dfa5494 | 1009 | } |
80876c20 LP |
1010 | |
1011 | /* We don't know the pid */ | |
1012 | return -EAGAIN; | |
1013 | } | |
1014 | ||
44a6b1b6 | 1015 | _pure_ static int control_pid_good(Service *s) { |
80876c20 LP |
1016 | assert(s); |
1017 | ||
1018 | return s->control_pid > 0; | |
1019 | } | |
1020 | ||
1021 | static int cgroup_good(Service *s) { | |
1022 | int r; | |
1023 | ||
1024 | assert(s); | |
1025 | ||
4ad49000 LP |
1026 | if (!UNIT(s)->cgroup_path) |
1027 | return 0; | |
1028 | ||
1029 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true); | |
117dcc57 | 1030 | if (r < 0) |
80876c20 LP |
1031 | return r; |
1032 | ||
1033 | return !r; | |
1034 | } | |
1035 | ||
bf500566 | 1036 | static int service_execute_action(Service *s, FailureAction action, const char *reason, bool log_action_none); |
93ae25e6 | 1037 | |
f42806df | 1038 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 LP |
1039 | int r; |
1040 | assert(s); | |
1041 | ||
f42806df LP |
1042 | if (f != SERVICE_SUCCESS) |
1043 | s->result = f; | |
034c6ed7 | 1044 | |
0c7f15b3 MS |
1045 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1046 | ||
93ae25e6 MO |
1047 | if (s->result != SERVICE_SUCCESS) |
1048 | service_execute_action(s, s->failure_action, "failed", false); | |
1049 | ||
034c6ed7 | 1050 | if (allow_restart && |
47342320 | 1051 | !s->forbid_restart && |
034c6ed7 | 1052 | (s->restart == SERVICE_RESTART_ALWAYS || |
f42806df LP |
1053 | (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) || |
1054 | (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) || | |
6cfe2fde | 1055 | (s->restart == SERVICE_RESTART_ON_ABNORMAL && !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE)) || |
dc99a976 | 1056 | (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) || |
37520c1b | 1057 | (s->restart == SERVICE_RESTART_ON_ABORT && IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP)) || |
3e2d435b | 1058 | (s->main_exec_status.code == CLD_EXITED && set_contains(s->restart_force_status.status, INT_TO_PTR(s->main_exec_status.status))) || |
37520c1b | 1059 | (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 | 1060 | (s->main_exec_status.code != CLD_EXITED || !set_contains(s->restart_prevent_status.status, INT_TO_PTR(s->main_exec_status.status))) && |
37520c1b | 1061 | (!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 | 1062 | |
718db961 | 1063 | r = service_arm_timer(s, s->restart_usec); |
f42806df | 1064 | if (r < 0) |
034c6ed7 LP |
1065 | goto fail; |
1066 | ||
1067 | service_set_state(s, SERVICE_AUTO_RESTART); | |
0c7f15b3 | 1068 | } |
034c6ed7 | 1069 | |
47342320 LP |
1070 | s->forbid_restart = false; |
1071 | ||
e66cf1a3 | 1072 | /* We want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1073 | exec_runtime_destroy(s->exec_runtime); |
1074 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1075 | |
e66cf1a3 LP |
1076 | /* Also, remove the runtime directory in */ |
1077 | exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager)); | |
1078 | ||
9285c9ff LN |
1079 | /* Try to delete the pid file. At this point it will be |
1080 | * out-of-date, and some software might be confused by it, so | |
1081 | * let's remove it. */ | |
1082 | if (s->pid_file) | |
1083 | unlink_noerrno(s->pid_file); | |
1084 | ||
034c6ed7 LP |
1085 | return; |
1086 | ||
1087 | fail: | |
8bb2d17d | 1088 | log_warning_unit(UNIT(s)->id, "%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1089 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1090 | } |
1091 | ||
f42806df | 1092 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1093 | int r; |
1094 | assert(s); | |
1095 | ||
f42806df LP |
1096 | if (f != SERVICE_SUCCESS) |
1097 | s->result = f; | |
034c6ed7 | 1098 | |
5e94833f | 1099 | service_unwatch_control_pid(s); |
a911bb9a | 1100 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1101 | |
117dcc57 ZJS |
1102 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1103 | if (s->control_command) { | |
867b3b7d LP |
1104 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1105 | ||
ecedd90f LP |
1106 | r = service_spawn(s, |
1107 | s->control_command, | |
1108 | true, | |
1109 | false, | |
1110 | !s->permissions_start_only, | |
1111 | !s->root_directory_start_only, | |
1112 | true, | |
1113 | false, | |
1114 | true, | |
1115 | &s->control_pid); | |
1116 | if (r < 0) | |
034c6ed7 LP |
1117 | goto fail; |
1118 | ||
80876c20 LP |
1119 | service_set_state(s, SERVICE_STOP_POST); |
1120 | } else | |
ac84d1fb | 1121 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1122 | |
1123 | return; | |
1124 | ||
1125 | fail: | |
8bb2d17d | 1126 | log_warning_unit(UNIT(s)->id, "%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1127 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1128 | } |
1129 | ||
f42806df | 1130 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1131 | int r; |
034c6ed7 LP |
1132 | |
1133 | assert(s); | |
1134 | ||
f42806df LP |
1135 | if (f != SERVICE_SUCCESS) |
1136 | s->result = f; | |
034c6ed7 | 1137 | |
a911bb9a LP |
1138 | unit_watch_all_pids(UNIT(s)); |
1139 | ||
cd2086fe LP |
1140 | r = unit_kill_context( |
1141 | UNIT(s), | |
1142 | &s->kill_context, | |
1143 | state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM, | |
1144 | s->main_pid, | |
1145 | s->control_pid, | |
1146 | s->main_pid_alien); | |
ac84d1fb | 1147 | |
cd2086fe LP |
1148 | if (r < 0) |
1149 | goto fail; | |
034c6ed7 | 1150 | |
cd2086fe | 1151 | if (r > 0) { |
d568a335 | 1152 | if (s->timeout_stop_usec > 0) { |
718db961 | 1153 | r = service_arm_timer(s, s->timeout_stop_usec); |
d568a335 | 1154 | if (r < 0) |
e558336f | 1155 | goto fail; |
d568a335 | 1156 | } |
d6ea93e3 | 1157 | |
80876c20 | 1158 | service_set_state(s, state); |
ac84d1fb LP |
1159 | } else if (state == SERVICE_STOP_SIGTERM) |
1160 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); | |
1161 | else if (state == SERVICE_STOP_SIGKILL) | |
f42806df | 1162 | service_enter_stop_post(s, SERVICE_SUCCESS); |
ac84d1fb LP |
1163 | else if (state == SERVICE_FINAL_SIGTERM) |
1164 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); | |
80876c20 | 1165 | else |
f42806df | 1166 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1167 | |
1168 | return; | |
1169 | ||
1170 | fail: | |
8bb2d17d | 1171 | log_warning_unit(UNIT(s)->id, "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r)); |
034c6ed7 | 1172 | |
80876c20 | 1173 | if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) |
f42806df | 1174 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1175 | else |
f42806df | 1176 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1177 | } |
1178 | ||
f42806df | 1179 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1180 | int r; |
5925dd3c | 1181 | |
034c6ed7 LP |
1182 | assert(s); |
1183 | ||
f42806df LP |
1184 | if (f != SERVICE_SUCCESS) |
1185 | s->result = f; | |
034c6ed7 | 1186 | |
5e94833f | 1187 | service_unwatch_control_pid(s); |
a911bb9a | 1188 | unit_watch_all_pids(UNIT(s)); |
5e94833f | 1189 | |
117dcc57 ZJS |
1190 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1191 | if (s->control_command) { | |
867b3b7d LP |
1192 | s->control_command_id = SERVICE_EXEC_STOP; |
1193 | ||
ecedd90f LP |
1194 | r = service_spawn(s, |
1195 | s->control_command, | |
1196 | true, | |
1197 | false, | |
1198 | !s->permissions_start_only, | |
1199 | !s->root_directory_start_only, | |
1200 | false, | |
1201 | false, | |
1202 | true, | |
1203 | &s->control_pid); | |
1204 | if (r < 0) | |
034c6ed7 LP |
1205 | goto fail; |
1206 | ||
80876c20 LP |
1207 | service_set_state(s, SERVICE_STOP); |
1208 | } else | |
f42806df | 1209 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1210 | |
1211 | return; | |
1212 | ||
1213 | fail: | |
8bb2d17d | 1214 | log_warning_unit(UNIT(s)->id, "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1215 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1216 | } |
1217 | ||
f42806df | 1218 | static void service_enter_running(Service *s, ServiceResult f) { |
4eab639f | 1219 | int main_pid_ok, cgroup_ok; |
80876c20 LP |
1220 | assert(s); |
1221 | ||
f42806df LP |
1222 | if (f != SERVICE_SUCCESS) |
1223 | s->result = f; | |
80876c20 | 1224 | |
4eab639f LP |
1225 | main_pid_ok = main_pid_good(s); |
1226 | cgroup_ok = cgroup_good(s); | |
1227 | ||
1228 | if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) && | |
05e343b7 | 1229 | (s->bus_name_good || s->type != SERVICE_DBUS)) |
80876c20 | 1230 | service_set_state(s, SERVICE_RUNNING); |
02ee865a | 1231 | else if (s->remain_after_exit) |
80876c20 LP |
1232 | service_set_state(s, SERVICE_EXITED); |
1233 | else | |
f42806df | 1234 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
1235 | } |
1236 | ||
034c6ed7 LP |
1237 | static void service_enter_start_post(Service *s) { |
1238 | int r; | |
1239 | assert(s); | |
1240 | ||
5e94833f | 1241 | service_unwatch_control_pid(s); |
842129f5 | 1242 | service_reset_watchdog(s); |
bb242b7b | 1243 | |
117dcc57 ZJS |
1244 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
1245 | if (s->control_command) { | |
867b3b7d LP |
1246 | s->control_command_id = SERVICE_EXEC_START_POST; |
1247 | ||
ecedd90f LP |
1248 | r = service_spawn(s, |
1249 | s->control_command, | |
1250 | true, | |
1251 | false, | |
1252 | !s->permissions_start_only, | |
1253 | !s->root_directory_start_only, | |
1254 | false, | |
1255 | false, | |
1256 | true, | |
1257 | &s->control_pid); | |
1258 | if (r < 0) | |
034c6ed7 LP |
1259 | goto fail; |
1260 | ||
80876c20 LP |
1261 | service_set_state(s, SERVICE_START_POST); |
1262 | } else | |
f42806df | 1263 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1264 | |
1265 | return; | |
1266 | ||
1267 | fail: | |
8bb2d17d | 1268 | log_warning_unit(UNIT(s)->id, "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1269 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1270 | } |
1271 | ||
4ad49000 LP |
1272 | static void service_kill_control_processes(Service *s) { |
1273 | char *p; | |
1274 | ||
1275 | if (!UNIT(s)->cgroup_path) | |
1276 | return; | |
1277 | ||
1278 | p = strappenda(UNIT(s)->cgroup_path, "/control"); | |
4ad49000 LP |
1279 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL); |
1280 | } | |
1281 | ||
034c6ed7 | 1282 | static void service_enter_start(Service *s) { |
4ad49000 | 1283 | ExecCommand *c; |
034c6ed7 LP |
1284 | pid_t pid; |
1285 | int r; | |
1286 | ||
1287 | assert(s); | |
1288 | ||
1289 | assert(s->exec_command[SERVICE_EXEC_START]); | |
34e9ba66 | 1290 | assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT); |
034c6ed7 | 1291 | |
41efeaec LP |
1292 | service_unwatch_control_pid(s); |
1293 | service_unwatch_main_pid(s); | |
80876c20 | 1294 | |
8f53a7b8 LP |
1295 | /* We want to ensure that nobody leaks processes from |
1296 | * START_PRE here, so let's go on a killing spree, People | |
1297 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 1298 | service_kill_control_processes(s); |
8f53a7b8 | 1299 | |
867b3b7d LP |
1300 | if (s->type == SERVICE_FORKING) { |
1301 | s->control_command_id = SERVICE_EXEC_START; | |
1302 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
1303 | ||
1304 | s->main_command = NULL; | |
1305 | } else { | |
1306 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
1307 | s->control_command = NULL; | |
1308 | ||
1309 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
1310 | } | |
34e9ba66 | 1311 | |
ecedd90f LP |
1312 | r = service_spawn(s, |
1313 | c, | |
117dcc57 ZJS |
1314 | s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || |
1315 | s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT, | |
ecedd90f LP |
1316 | true, |
1317 | true, | |
1318 | true, | |
1319 | true, | |
1320 | s->notify_access != NOTIFY_NONE, | |
1321 | false, | |
1322 | &pid); | |
1323 | if (r < 0) | |
034c6ed7 LP |
1324 | goto fail; |
1325 | ||
f2b68789 | 1326 | if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) { |
034c6ed7 LP |
1327 | /* For simple services we immediately start |
1328 | * the START_POST binaries. */ | |
1329 | ||
5925dd3c | 1330 | service_set_main_pid(s, pid); |
034c6ed7 LP |
1331 | service_enter_start_post(s); |
1332 | ||
1333 | } else if (s->type == SERVICE_FORKING) { | |
1334 | ||
1335 | /* For forking services we wait until the start | |
1336 | * process exited. */ | |
1337 | ||
e55224ca | 1338 | s->control_pid = pid; |
80876c20 LP |
1339 | service_set_state(s, SERVICE_START); |
1340 | ||
34e9ba66 | 1341 | } else if (s->type == SERVICE_ONESHOT || |
8c47c732 LP |
1342 | s->type == SERVICE_DBUS || |
1343 | s->type == SERVICE_NOTIFY) { | |
7d55e835 | 1344 | |
34e9ba66 | 1345 | /* For oneshot services we wait until the start |
7d55e835 LP |
1346 | * process exited, too, but it is our main process. */ |
1347 | ||
05e343b7 | 1348 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
1349 | * but wait for the bus name to appear on the |
1350 | * bus. Notify services are similar. */ | |
05e343b7 | 1351 | |
5925dd3c | 1352 | service_set_main_pid(s, pid); |
80876c20 | 1353 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
1354 | } else |
1355 | assert_not_reached("Unknown service type"); | |
1356 | ||
1357 | return; | |
1358 | ||
1359 | fail: | |
8bb2d17d | 1360 | log_warning_unit(UNIT(s)->id, "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1361 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1362 | } |
1363 | ||
1364 | static void service_enter_start_pre(Service *s) { | |
1365 | int r; | |
1366 | ||
1367 | assert(s); | |
1368 | ||
5e94833f LP |
1369 | service_unwatch_control_pid(s); |
1370 | ||
117dcc57 ZJS |
1371 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
1372 | if (s->control_command) { | |
8f53a7b8 LP |
1373 | /* Before we start anything, let's clear up what might |
1374 | * be left from previous runs. */ | |
4ad49000 | 1375 | service_kill_control_processes(s); |
8f53a7b8 | 1376 | |
867b3b7d LP |
1377 | s->control_command_id = SERVICE_EXEC_START_PRE; |
1378 | ||
ecedd90f LP |
1379 | r = service_spawn(s, |
1380 | s->control_command, | |
1381 | true, | |
1382 | false, | |
1383 | !s->permissions_start_only, | |
1384 | !s->root_directory_start_only, | |
1385 | true, | |
1386 | false, | |
1387 | true, | |
1388 | &s->control_pid); | |
1389 | if (r < 0) | |
034c6ed7 LP |
1390 | goto fail; |
1391 | ||
80876c20 LP |
1392 | service_set_state(s, SERVICE_START_PRE); |
1393 | } else | |
034c6ed7 LP |
1394 | service_enter_start(s); |
1395 | ||
1396 | return; | |
1397 | ||
1398 | fail: | |
37520c1b | 1399 | log_warning_unit(UNIT(s)->id, "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1400 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1401 | } |
1402 | ||
1403 | static void service_enter_restart(Service *s) { | |
718db961 | 1404 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 1405 | int r; |
398ef8ba | 1406 | |
034c6ed7 LP |
1407 | assert(s); |
1408 | ||
a8bb2e65 LP |
1409 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
1410 | /* Don't restart things if we are going down anyway */ | |
37520c1b | 1411 | log_info_unit(UNIT(s)->id, "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 1412 | |
718db961 | 1413 | r = service_arm_timer(s, s->restart_usec); |
a8bb2e65 | 1414 | if (r < 0) |
2edfa366 | 1415 | goto fail; |
feae8adb DW |
1416 | |
1417 | return; | |
2edfa366 LP |
1418 | } |
1419 | ||
48bb5876 DW |
1420 | /* Any units that are bound to this service must also be |
1421 | * restarted. We use JOB_RESTART (instead of the more obvious | |
1422 | * JOB_START) here so that those dependency jobs will be added | |
1423 | * as well. */ | |
1424 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL); | |
1425 | if (r < 0) | |
034c6ed7 LP |
1426 | goto fail; |
1427 | ||
a8bb2e65 LP |
1428 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
1429 | * it will be canceled as part of the service_stop() call that | |
1430 | * is executed as part of JOB_RESTART. */ | |
1431 | ||
37520c1b | 1432 | log_debug_unit(UNIT(s)->id, "%s scheduled restart job.", UNIT(s)->id); |
034c6ed7 LP |
1433 | return; |
1434 | ||
1435 | fail: | |
66870f90 ZJS |
1436 | log_warning_unit(UNIT(s)->id, |
1437 | "%s failed to schedule restart job: %s", | |
718db961 | 1438 | UNIT(s)->id, bus_error_message(&error, -r)); |
f42806df | 1439 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1440 | } |
1441 | ||
1442 | static void service_enter_reload(Service *s) { | |
1443 | int r; | |
1444 | ||
1445 | assert(s); | |
1446 | ||
5e94833f LP |
1447 | service_unwatch_control_pid(s); |
1448 | ||
117dcc57 ZJS |
1449 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
1450 | if (s->control_command) { | |
867b3b7d LP |
1451 | s->control_command_id = SERVICE_EXEC_RELOAD; |
1452 | ||
ecedd90f LP |
1453 | r = service_spawn(s, |
1454 | s->control_command, | |
1455 | true, | |
1456 | false, | |
1457 | !s->permissions_start_only, | |
1458 | !s->root_directory_start_only, | |
1459 | false, | |
1460 | false, | |
1461 | true, | |
1462 | &s->control_pid); | |
1463 | if (r < 0) | |
034c6ed7 LP |
1464 | goto fail; |
1465 | ||
80876c20 LP |
1466 | service_set_state(s, SERVICE_RELOAD); |
1467 | } else | |
f42806df | 1468 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
1469 | |
1470 | return; | |
1471 | ||
1472 | fail: | |
8bb2d17d | 1473 | log_warning_unit(UNIT(s)->id, "%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df LP |
1474 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1475 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
1476 | } |
1477 | ||
f42806df | 1478 | static void service_run_next_control(Service *s) { |
034c6ed7 LP |
1479 | int r; |
1480 | ||
1481 | assert(s); | |
1482 | assert(s->control_command); | |
1483 | assert(s->control_command->command_next); | |
1484 | ||
34e9ba66 | 1485 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 1486 | |
34e9ba66 | 1487 | s->control_command = s->control_command->command_next; |
5e94833f LP |
1488 | service_unwatch_control_pid(s); |
1489 | ||
ecedd90f LP |
1490 | r = service_spawn(s, |
1491 | s->control_command, | |
1492 | true, | |
1493 | false, | |
1494 | !s->permissions_start_only, | |
1495 | !s->root_directory_start_only, | |
1496 | s->control_command_id == SERVICE_EXEC_START_PRE || | |
1497 | s->control_command_id == SERVICE_EXEC_STOP_POST, | |
1498 | false, | |
1499 | true, | |
1500 | &s->control_pid); | |
1501 | if (r < 0) | |
034c6ed7 LP |
1502 | goto fail; |
1503 | ||
1504 | return; | |
1505 | ||
1506 | fail: | |
8bb2d17d | 1507 | log_warning_unit(UNIT(s)->id, "%s failed to run next control task: %s", UNIT(s)->id, strerror(-r)); |
034c6ed7 | 1508 | |
80876c20 | 1509 | if (s->state == SERVICE_START_PRE) |
f42806df | 1510 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
80876c20 | 1511 | else if (s->state == SERVICE_STOP) |
f42806df | 1512 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1513 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 1514 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 1515 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
1516 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
1517 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 1518 | } else |
f42806df | 1519 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
1520 | } |
1521 | ||
f42806df | 1522 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
1523 | pid_t pid; |
1524 | int r; | |
1525 | ||
1526 | assert(s); | |
867b3b7d LP |
1527 | assert(s->main_command); |
1528 | assert(s->main_command->command_next); | |
1529 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 1530 | |
867b3b7d | 1531 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
1532 | service_unwatch_main_pid(s); |
1533 | ||
ecedd90f LP |
1534 | r = service_spawn(s, |
1535 | s->main_command, | |
98709151 | 1536 | true, |
ecedd90f LP |
1537 | true, |
1538 | true, | |
1539 | true, | |
1540 | true, | |
1541 | s->notify_access != NOTIFY_NONE, | |
1542 | false, | |
1543 | &pid); | |
1544 | if (r < 0) | |
34e9ba66 LP |
1545 | goto fail; |
1546 | ||
1547 | service_set_main_pid(s, pid); | |
1548 | ||
1549 | return; | |
1550 | ||
1551 | fail: | |
8bb2d17d | 1552 | log_warning_unit(UNIT(s)->id, "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1553 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
1554 | } |
1555 | ||
bf500566 | 1556 | static int service_execute_action(Service *s, FailureAction action, const char *reason, bool log_action_none) { |
4b939747 MO |
1557 | assert(s); |
1558 | ||
bf500566 MO |
1559 | if (action == SERVICE_FAILURE_ACTION_REBOOT || |
1560 | action == SERVICE_FAILURE_ACTION_REBOOT_FORCE) | |
efe6e7d3 MO |
1561 | update_reboot_param_file(s->reboot_arg); |
1562 | ||
93ae25e6 | 1563 | switch (action) { |
4b939747 | 1564 | |
bf500566 | 1565 | case SERVICE_FAILURE_ACTION_NONE: |
93ae25e6 | 1566 | if (log_action_none) |
8bb2d17d | 1567 | log_warning_unit(UNIT(s)->id, "%s %s, refusing to start.", UNIT(s)->id, reason); |
4b939747 MO |
1568 | break; |
1569 | ||
bf500566 | 1570 | case SERVICE_FAILURE_ACTION_REBOOT: { |
718db961 | 1571 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
4b939747 MO |
1572 | int r; |
1573 | ||
8bb2d17d | 1574 | log_warning_unit(UNIT(s)->id, "%s %s, rebooting.", UNIT(s)->id, reason); |
4b939747 | 1575 | |
8bb2d17d | 1576 | r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL); |
718db961 | 1577 | if (r < 0) |
8bb2d17d | 1578 | log_error_unit(UNIT(s)->id, "Failed to reboot: %s.", bus_error_message(&error, r)); |
4b939747 MO |
1579 | |
1580 | break; | |
1581 | } | |
1582 | ||
bf500566 | 1583 | case SERVICE_FAILURE_ACTION_REBOOT_FORCE: |
8bb2d17d | 1584 | log_warning_unit(UNIT(s)->id, "%s %s, forcibly rebooting.", UNIT(s)->id, reason); |
4b939747 MO |
1585 | UNIT(s)->manager->exit_code = MANAGER_REBOOT; |
1586 | break; | |
1587 | ||
bf500566 | 1588 | case SERVICE_FAILURE_ACTION_REBOOT_IMMEDIATE: |
8bb2d17d LP |
1589 | log_warning_unit(UNIT(s)->id, "%s %s, rebooting immediately.", UNIT(s)->id, reason); |
1590 | ||
0049f05a | 1591 | sync(); |
8bb2d17d | 1592 | |
efe6e7d3 MO |
1593 | if (s->reboot_arg) { |
1594 | log_info("Rebooting with argument '%s'.", s->reboot_arg); | |
8bb2d17d | 1595 | syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, s->reboot_arg); |
efe6e7d3 MO |
1596 | } |
1597 | ||
1598 | log_info("Rebooting."); | |
4b939747 MO |
1599 | reboot(RB_AUTOBOOT); |
1600 | break; | |
1601 | ||
1602 | default: | |
8bb2d17d | 1603 | log_error_unit(UNIT(s)->id, "failure action=%i", action); |
bf500566 | 1604 | assert_not_reached("Unknown FailureAction."); |
4b939747 MO |
1605 | } |
1606 | ||
1607 | return -ECANCELED; | |
1608 | } | |
1609 | ||
93ae25e6 MO |
1610 | static int service_start_limit_test(Service *s) { |
1611 | assert(s); | |
1612 | ||
1613 | if (ratelimit_test(&s->start_limit)) | |
1614 | return 0; | |
1615 | ||
1616 | return service_execute_action(s, s->start_limit_action, "start request repeated too quickly", true); | |
1617 | } | |
1618 | ||
87f0e418 LP |
1619 | static int service_start(Unit *u) { |
1620 | Service *s = SERVICE(u); | |
4b939747 | 1621 | int r; |
5cb5a6ff LP |
1622 | |
1623 | assert(s); | |
1624 | ||
034c6ed7 LP |
1625 | /* We cannot fulfill this request right now, try again later |
1626 | * please! */ | |
1627 | if (s->state == SERVICE_STOP || | |
1628 | s->state == SERVICE_STOP_SIGTERM || | |
1629 | s->state == SERVICE_STOP_SIGKILL || | |
1630 | s->state == SERVICE_STOP_POST || | |
1631 | s->state == SERVICE_FINAL_SIGTERM || | |
1632 | s->state == SERVICE_FINAL_SIGKILL) | |
5cb5a6ff LP |
1633 | return -EAGAIN; |
1634 | ||
034c6ed7 LP |
1635 | /* Already on it! */ |
1636 | if (s->state == SERVICE_START_PRE || | |
1637 | s->state == SERVICE_START || | |
1638 | s->state == SERVICE_START_POST) | |
1639 | return 0; | |
1640 | ||
2e9d6c12 | 1641 | /* A service that will be restarted must be stopped first to |
7f2cddae | 1642 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 1643 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
1644 | * service should be manually restarted, not started. We |
1645 | * simply return EAGAIN here, so that any start jobs stay | |
1646 | * queued, and assume that the auto restart timer will | |
1647 | * eventually trigger the restart. */ | |
1648 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 1649 | return -EAGAIN; |
2e9d6c12 DW |
1650 | |
1651 | assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED); | |
5cb5a6ff | 1652 | |
1e2e8133 | 1653 | /* Make sure we don't enter a busy loop of some kind. */ |
4b939747 | 1654 | r = service_start_limit_test(s); |
c2f34808 | 1655 | if (r < 0) { |
8d1b002a | 1656 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false); |
4b939747 | 1657 | return r; |
c2f34808 | 1658 | } |
1e2e8133 | 1659 | |
f42806df LP |
1660 | s->result = SERVICE_SUCCESS; |
1661 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 1662 | s->main_pid_known = false; |
6dfa5494 | 1663 | s->main_pid_alien = false; |
47342320 | 1664 | s->forbid_restart = false; |
034c6ed7 | 1665 | |
8cfdb077 LP |
1666 | free(s->status_text); |
1667 | s->status_text = NULL; | |
1668 | s->status_errno = 0; | |
1669 | ||
034c6ed7 LP |
1670 | service_enter_start_pre(s); |
1671 | return 0; | |
5cb5a6ff LP |
1672 | } |
1673 | ||
87f0e418 LP |
1674 | static int service_stop(Unit *u) { |
1675 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
1676 | |
1677 | assert(s); | |
1678 | ||
f0c7b229 | 1679 | /* Don't create restart jobs from here. */ |
47342320 | 1680 | s->forbid_restart = true; |
034c6ed7 | 1681 | |
e537352b LP |
1682 | /* Already on it */ |
1683 | if (s->state == SERVICE_STOP || | |
1684 | s->state == SERVICE_STOP_SIGTERM || | |
1685 | s->state == SERVICE_STOP_SIGKILL || | |
1686 | s->state == SERVICE_STOP_POST || | |
1687 | s->state == SERVICE_FINAL_SIGTERM || | |
1688 | s->state == SERVICE_FINAL_SIGKILL) | |
1689 | return 0; | |
1690 | ||
f0c7b229 | 1691 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 1692 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 1693 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
1694 | return 0; |
1695 | } | |
1696 | ||
3f6c78dc LP |
1697 | /* If there's already something running we go directly into |
1698 | * kill mode. */ | |
1699 | if (s->state == SERVICE_START_PRE || | |
1700 | s->state == SERVICE_START || | |
1701 | s->state == SERVICE_START_POST || | |
1702 | s->state == SERVICE_RELOAD) { | |
f42806df | 1703 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
1704 | return 0; |
1705 | } | |
5cb5a6ff | 1706 | |
3f6c78dc LP |
1707 | assert(s->state == SERVICE_RUNNING || |
1708 | s->state == SERVICE_EXITED); | |
3a762661 | 1709 | |
f42806df | 1710 | service_enter_stop(s, SERVICE_SUCCESS); |
5cb5a6ff LP |
1711 | return 0; |
1712 | } | |
1713 | ||
87f0e418 LP |
1714 | static int service_reload(Unit *u) { |
1715 | Service *s = SERVICE(u); | |
034c6ed7 LP |
1716 | |
1717 | assert(s); | |
1718 | ||
80876c20 | 1719 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
1720 | |
1721 | service_enter_reload(s); | |
5cb5a6ff LP |
1722 | return 0; |
1723 | } | |
1724 | ||
44a6b1b6 | 1725 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 1726 | Service *s = SERVICE(u); |
034c6ed7 LP |
1727 | |
1728 | assert(s); | |
1729 | ||
1730 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
1731 | } | |
1732 | ||
a16e1123 LP |
1733 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
1734 | Service *s = SERVICE(u); | |
1735 | ||
1736 | assert(u); | |
1737 | assert(f); | |
1738 | assert(fds); | |
1739 | ||
1740 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
1741 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
1742 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
1743 | |
1744 | if (s->control_pid > 0) | |
ccd06097 ZJS |
1745 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, |
1746 | s->control_pid); | |
a16e1123 | 1747 | |
5925dd3c | 1748 | if (s->main_pid_known && s->main_pid > 0) |
ccd06097 | 1749 | unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 LP |
1750 | |
1751 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
1752 | ||
3a2776bc LP |
1753 | if (s->status_text) |
1754 | unit_serialize_item(u, f, "status-text", s->status_text); | |
1755 | ||
cfc4eb4c LP |
1756 | /* FIXME: There's a minor uncleanliness here: if there are |
1757 | * multiple commands attached here, we will start from the | |
1758 | * first one again */ | |
a16e1123 | 1759 | if (s->control_command_id >= 0) |
117dcc57 ZJS |
1760 | unit_serialize_item(u, f, "control-command", |
1761 | service_exec_command_to_string(s->control_command_id)); | |
a16e1123 LP |
1762 | |
1763 | if (s->socket_fd >= 0) { | |
1764 | int copy; | |
1765 | ||
1766 | if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0) | |
1767 | return copy; | |
1768 | ||
1769 | unit_serialize_item_format(u, f, "socket-fd", "%i", copy); | |
1770 | } | |
1771 | ||
ecdbca40 | 1772 | if (s->main_exec_status.pid > 0) { |
ccd06097 ZJS |
1773 | unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT, |
1774 | s->main_exec_status.pid); | |
117dcc57 ZJS |
1775 | dual_timestamp_serialize(f, "main-exec-status-start", |
1776 | &s->main_exec_status.start_timestamp); | |
1777 | dual_timestamp_serialize(f, "main-exec-status-exit", | |
1778 | &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 1779 | |
799fd0fd | 1780 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
117dcc57 ZJS |
1781 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", |
1782 | s->main_exec_status.code); | |
1783 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", | |
1784 | s->main_exec_status.status); | |
ecdbca40 LP |
1785 | } |
1786 | } | |
a6927d7f | 1787 | if (dual_timestamp_is_set(&s->watchdog_timestamp)) |
842129f5 | 1788 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); |
ecdbca40 | 1789 | |
6aca9a58 | 1790 | if (s->forbid_restart) |
8d1a2802 | 1791 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 1792 | |
a16e1123 LP |
1793 | return 0; |
1794 | } | |
1795 | ||
1796 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
1797 | Service *s = SERVICE(u); | |
a16e1123 LP |
1798 | |
1799 | assert(u); | |
1800 | assert(key); | |
1801 | assert(value); | |
1802 | assert(fds); | |
1803 | ||
1804 | if (streq(key, "state")) { | |
1805 | ServiceState state; | |
1806 | ||
117dcc57 ZJS |
1807 | state = service_state_from_string(value); |
1808 | if (state < 0) | |
66870f90 | 1809 | log_debug_unit(u->id, "Failed to parse state value %s", value); |
a16e1123 LP |
1810 | else |
1811 | s->deserialized_state = state; | |
f42806df LP |
1812 | } else if (streq(key, "result")) { |
1813 | ServiceResult f; | |
1814 | ||
1815 | f = service_result_from_string(value); | |
1816 | if (f < 0) | |
66870f90 | 1817 | log_debug_unit(u->id, "Failed to parse result value %s", value); |
f42806df LP |
1818 | else if (f != SERVICE_SUCCESS) |
1819 | s->result = f; | |
1820 | ||
1821 | } else if (streq(key, "reload-result")) { | |
1822 | ServiceResult f; | |
1823 | ||
1824 | f = service_result_from_string(value); | |
1825 | if (f < 0) | |
66870f90 | 1826 | log_debug_unit(u->id, "Failed to parse reload result value %s", value); |
f42806df LP |
1827 | else if (f != SERVICE_SUCCESS) |
1828 | s->reload_result = f; | |
a16e1123 | 1829 | |
a16e1123 | 1830 | } else if (streq(key, "control-pid")) { |
5925dd3c | 1831 | pid_t pid; |
a16e1123 | 1832 | |
e364ad06 | 1833 | if (parse_pid(value, &pid) < 0) |
66870f90 | 1834 | log_debug_unit(u->id, "Failed to parse control-pid value %s", value); |
a16e1123 | 1835 | else |
e55224ca | 1836 | s->control_pid = pid; |
a16e1123 | 1837 | } else if (streq(key, "main-pid")) { |
5925dd3c | 1838 | pid_t pid; |
a16e1123 | 1839 | |
e364ad06 | 1840 | if (parse_pid(value, &pid) < 0) |
66870f90 | 1841 | log_debug_unit(u->id, "Failed to parse main-pid value %s", value); |
7400b9d2 LP |
1842 | else { |
1843 | service_set_main_pid(s, pid); | |
1844 | unit_watch_pid(UNIT(s), pid); | |
1845 | } | |
a16e1123 LP |
1846 | } else if (streq(key, "main-pid-known")) { |
1847 | int b; | |
1848 | ||
117dcc57 ZJS |
1849 | b = parse_boolean(value); |
1850 | if (b < 0) | |
66870f90 | 1851 | log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value); |
a16e1123 LP |
1852 | else |
1853 | s->main_pid_known = b; | |
3a2776bc LP |
1854 | } else if (streq(key, "status-text")) { |
1855 | char *t; | |
1856 | ||
117dcc57 ZJS |
1857 | t = strdup(value); |
1858 | if (!t) | |
1859 | log_oom(); | |
1860 | else { | |
3a2776bc LP |
1861 | free(s->status_text); |
1862 | s->status_text = t; | |
1863 | } | |
1864 | ||
a16e1123 LP |
1865 | } else if (streq(key, "control-command")) { |
1866 | ServiceExecCommand id; | |
1867 | ||
117dcc57 ZJS |
1868 | id = service_exec_command_from_string(value); |
1869 | if (id < 0) | |
66870f90 | 1870 | log_debug_unit(u->id, "Failed to parse exec-command value %s", value); |
a16e1123 LP |
1871 | else { |
1872 | s->control_command_id = id; | |
1873 | s->control_command = s->exec_command[id]; | |
1874 | } | |
1875 | } else if (streq(key, "socket-fd")) { | |
1876 | int fd; | |
1877 | ||
1878 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
66870f90 | 1879 | log_debug_unit(u->id, "Failed to parse socket-fd value %s", value); |
a16e1123 LP |
1880 | else { |
1881 | ||
574634bc | 1882 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
1883 | s->socket_fd = fdset_remove(fds, fd); |
1884 | } | |
ecdbca40 LP |
1885 | } else if (streq(key, "main-exec-status-pid")) { |
1886 | pid_t pid; | |
1887 | ||
e364ad06 | 1888 | if (parse_pid(value, &pid) < 0) |
66870f90 | 1889 | log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value); |
ecdbca40 LP |
1890 | else |
1891 | s->main_exec_status.pid = pid; | |
1892 | } else if (streq(key, "main-exec-status-code")) { | |
1893 | int i; | |
1894 | ||
e364ad06 | 1895 | if (safe_atoi(value, &i) < 0) |
66870f90 | 1896 | log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value); |
ecdbca40 LP |
1897 | else |
1898 | s->main_exec_status.code = i; | |
1899 | } else if (streq(key, "main-exec-status-status")) { | |
1900 | int i; | |
1901 | ||
e364ad06 | 1902 | if (safe_atoi(value, &i) < 0) |
66870f90 | 1903 | log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value); |
ecdbca40 LP |
1904 | else |
1905 | s->main_exec_status.status = i; | |
799fd0fd LP |
1906 | } else if (streq(key, "main-exec-status-start")) |
1907 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
1908 | else if (streq(key, "main-exec-status-exit")) | |
1909 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
1910 | else if (streq(key, "watchdog-timestamp")) |
1911 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 1912 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
1913 | int b; |
1914 | ||
1915 | b = parse_boolean(value); | |
1916 | if (b < 0) | |
8d1a2802 | 1917 | log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value); |
6aca9a58 SE |
1918 | else |
1919 | s->forbid_restart = b; | |
c17ec25e | 1920 | } else |
66870f90 | 1921 | log_debug_unit(u->id, "Unknown serialization key '%s'", key); |
a16e1123 LP |
1922 | |
1923 | return 0; | |
1924 | } | |
1925 | ||
44a6b1b6 | 1926 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
1927 | const UnitActiveState *table; |
1928 | ||
87f0e418 | 1929 | assert(u); |
5cb5a6ff | 1930 | |
e056b01d LP |
1931 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
1932 | ||
1933 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
1934 | } |
1935 | ||
10a94420 LP |
1936 | static const char *service_sub_state_to_string(Unit *u) { |
1937 | assert(u); | |
1938 | ||
1939 | return service_state_to_string(SERVICE(u)->state); | |
1940 | } | |
1941 | ||
701cc384 LP |
1942 | static bool service_check_gc(Unit *u) { |
1943 | Service *s = SERVICE(u); | |
1944 | ||
1945 | assert(s); | |
1946 | ||
6d55002a LP |
1947 | /* Never clean up services that still have a process around, |
1948 | * even if the service is formally dead. */ | |
1949 | if (cgroup_good(s) > 0 || | |
1950 | main_pid_good(s) > 0 || | |
1951 | control_pid_good(s) > 0) | |
1952 | return true; | |
1953 | ||
6d55002a LP |
1954 | return false; |
1955 | } | |
1956 | ||
44a6b1b6 | 1957 | _pure_ static bool service_check_snapshot(Unit *u) { |
701cc384 LP |
1958 | Service *s = SERVICE(u); |
1959 | ||
1960 | assert(s); | |
1961 | ||
8bb2d17d | 1962 | return s->socket_fd < 0; |
701cc384 LP |
1963 | } |
1964 | ||
3a111838 MS |
1965 | static int service_retry_pid_file(Service *s) { |
1966 | int r; | |
1967 | ||
1968 | assert(s->pid_file); | |
1969 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
1970 | ||
1971 | r = service_load_pid_file(s, false); | |
1972 | if (r < 0) | |
1973 | return r; | |
1974 | ||
1975 | service_unwatch_pid_file(s); | |
1976 | ||
f42806df | 1977 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
1978 | return 0; |
1979 | } | |
1980 | ||
1981 | static int service_watch_pid_file(Service *s) { | |
1982 | int r; | |
1983 | ||
8bb2d17d LP |
1984 | log_debug_unit(UNIT(s)->id, "Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path); |
1985 | ||
718db961 | 1986 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
1987 | if (r < 0) |
1988 | goto fail; | |
1989 | ||
1990 | /* the pidfile might have appeared just before we set the watch */ | |
8bb2d17d | 1991 | 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 |
1992 | service_retry_pid_file(s); |
1993 | ||
1994 | return 0; | |
1995 | fail: | |
8bb2d17d | 1996 | 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 |
1997 | service_unwatch_pid_file(s); |
1998 | return r; | |
1999 | } | |
2000 | ||
2001 | static int service_demand_pid_file(Service *s) { | |
2002 | PathSpec *ps; | |
2003 | ||
2004 | assert(s->pid_file); | |
2005 | assert(!s->pid_file_pathspec); | |
2006 | ||
2007 | ps = new0(PathSpec, 1); | |
2008 | if (!ps) | |
2009 | return -ENOMEM; | |
2010 | ||
718db961 | 2011 | ps->unit = UNIT(s); |
3a111838 MS |
2012 | ps->path = strdup(s->pid_file); |
2013 | if (!ps->path) { | |
2014 | free(ps); | |
2015 | return -ENOMEM; | |
2016 | } | |
2017 | ||
2018 | path_kill_slashes(ps->path); | |
2019 | ||
2020 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2021 | * keep their PID file open all the time. */ | |
2022 | ps->type = PATH_MODIFIED; | |
2023 | ps->inotify_fd = -1; | |
2024 | ||
2025 | s->pid_file_pathspec = ps; | |
2026 | ||
2027 | return service_watch_pid_file(s); | |
2028 | } | |
2029 | ||
718db961 | 2030 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2031 | PathSpec *p = userdata; |
2032 | Service *s; | |
2033 | ||
2034 | assert(p); | |
2035 | ||
2036 | s = SERVICE(p->unit); | |
3a111838 MS |
2037 | |
2038 | assert(s); | |
2039 | assert(fd >= 0); | |
2040 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2041 | assert(s->pid_file_pathspec); | |
57020a3a | 2042 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2043 | |
718db961 | 2044 | log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id); |
3a111838 | 2045 | |
e14c2802 | 2046 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2047 | goto fail; |
2048 | ||
2049 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2050 | return 0; |
3a111838 MS |
2051 | |
2052 | if (service_watch_pid_file(s) < 0) | |
2053 | goto fail; | |
2054 | ||
718db961 LP |
2055 | return 0; |
2056 | ||
3a111838 MS |
2057 | fail: |
2058 | service_unwatch_pid_file(s); | |
f42806df | 2059 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2060 | return 0; |
3a111838 MS |
2061 | } |
2062 | ||
a911bb9a LP |
2063 | static void service_notify_cgroup_empty_event(Unit *u) { |
2064 | Service *s = SERVICE(u); | |
2065 | ||
2066 | assert(u); | |
2067 | ||
2068 | log_debug_unit(u->id, "%s: cgroup is empty", u->id); | |
2069 | ||
2070 | switch (s->state) { | |
2071 | ||
2072 | /* Waiting for SIGCHLD is usually more interesting, | |
2073 | * because it includes return codes/signals. Which is | |
2074 | * why we ignore the cgroup events for most cases, | |
2075 | * except when we don't know pid which to expect the | |
2076 | * SIGCHLD for. */ | |
2077 | ||
2078 | case SERVICE_START: | |
2079 | case SERVICE_START_POST: | |
2080 | /* If we were hoping for the daemon to write its PID file, | |
2081 | * we can give up now. */ | |
2082 | if (s->pid_file_pathspec) { | |
8bb2d17d LP |
2083 | log_warning_unit(u->id, "%s never wrote its PID file. Failing.", UNIT(s)->id); |
2084 | ||
a911bb9a LP |
2085 | service_unwatch_pid_file(s); |
2086 | if (s->state == SERVICE_START) | |
2087 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); | |
2088 | else | |
2089 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); | |
2090 | } | |
2091 | break; | |
2092 | ||
2093 | case SERVICE_RUNNING: | |
2094 | /* service_enter_running() will figure out what to do */ | |
2095 | service_enter_running(s, SERVICE_SUCCESS); | |
2096 | break; | |
2097 | ||
2098 | case SERVICE_STOP_SIGTERM: | |
2099 | case SERVICE_STOP_SIGKILL: | |
2100 | ||
2101 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2102 | service_enter_stop_post(s, SERVICE_SUCCESS); | |
2103 | ||
2104 | break; | |
2105 | ||
2106 | case SERVICE_STOP_POST: | |
2107 | case SERVICE_FINAL_SIGTERM: | |
2108 | case SERVICE_FINAL_SIGKILL: | |
2109 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
2110 | service_enter_dead(s, SERVICE_SUCCESS, true); | |
2111 | ||
2112 | break; | |
2113 | ||
2114 | default: | |
2115 | ; | |
2116 | } | |
2117 | } | |
2118 | ||
87f0e418 LP |
2119 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2120 | Service *s = SERVICE(u); | |
f42806df | 2121 | ServiceResult f; |
5cb5a6ff LP |
2122 | |
2123 | assert(s); | |
034c6ed7 LP |
2124 | assert(pid >= 0); |
2125 | ||
96342de6 LN |
2126 | if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) : |
2127 | is_clean_exit_lsb(code, status, &s->success_status)) | |
f42806df LP |
2128 | f = SERVICE_SUCCESS; |
2129 | else if (code == CLD_EXITED) | |
2130 | f = SERVICE_FAILURE_EXIT_CODE; | |
2131 | else if (code == CLD_KILLED) | |
2132 | f = SERVICE_FAILURE_SIGNAL; | |
2133 | else if (code == CLD_DUMPED) | |
2134 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2135 | else |
cfc4eb4c | 2136 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2137 | |
2138 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2139 | /* Forking services may occasionally move to a new PID. |
2140 | * As long as they update the PID file before exiting the old | |
2141 | * PID, they're fine. */ | |
5375410b | 2142 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2143 | return; |
034c6ed7 | 2144 | |
034c6ed7 | 2145 | s->main_pid = 0; |
6ea832a2 | 2146 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2147 | |
867b3b7d | 2148 | if (s->main_command) { |
fbeefb45 LP |
2149 | /* If this is not a forking service than the |
2150 | * main process got started and hence we copy | |
2151 | * the exit status so that it is recorded both | |
2152 | * as main and as control process exit | |
2153 | * status */ | |
2154 | ||
867b3b7d | 2155 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2156 | |
867b3b7d | 2157 | if (s->main_command->ignore) |
f42806df | 2158 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2159 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2160 | ||
2161 | /* If this is a forked process, then we should | |
2162 | * ignore the return value if this was | |
2163 | * configured for the starter process */ | |
2164 | ||
2165 | if (s->exec_command[SERVICE_EXEC_START]->ignore) | |
2166 | f = SERVICE_SUCCESS; | |
034c6ed7 LP |
2167 | } |
2168 | ||
bbc9006e MT |
2169 | log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, |
2170 | u->id, | |
23635a85 ZJS |
2171 | "MESSAGE=%s: main process exited, code=%s, status=%i/%s", |
2172 | u->id, sigchld_code_to_string(code), status, | |
2173 | strna(code == CLD_EXITED | |
2174 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2175 | : signal_to_string(status)), | |
23635a85 ZJS |
2176 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2177 | "EXIT_STATUS=%i", status, | |
2178 | NULL); | |
f42806df LP |
2179 | |
2180 | if (f != SERVICE_SUCCESS) | |
2181 | s->result = f; | |
034c6ed7 | 2182 | |
867b3b7d LP |
2183 | if (s->main_command && |
2184 | s->main_command->command_next && | |
f42806df | 2185 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2186 | |
34e9ba66 LP |
2187 | /* There is another command to * |
2188 | * execute, so let's do that. */ | |
034c6ed7 | 2189 | |
8bb2d17d | 2190 | log_debug_unit(u->id, "%s running next main command for state %s", u->id, service_state_to_string(s->state)); |
f42806df | 2191 | service_run_next_main(s); |
034c6ed7 | 2192 | |
34e9ba66 LP |
2193 | } else { |
2194 | ||
2195 | /* The service exited, so the service is officially | |
2196 | * gone. */ | |
867b3b7d | 2197 | s->main_command = NULL; |
34e9ba66 LP |
2198 | |
2199 | switch (s->state) { | |
2200 | ||
2201 | case SERVICE_START_POST: | |
2202 | case SERVICE_RELOAD: | |
2203 | case SERVICE_STOP: | |
2204 | /* Need to wait until the operation is | |
2205 | * done */ | |
c4653a4d | 2206 | break; |
7d55e835 | 2207 | |
34e9ba66 LP |
2208 | case SERVICE_START: |
2209 | if (s->type == SERVICE_ONESHOT) { | |
2210 | /* This was our main goal, so let's go on */ | |
f42806df | 2211 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2212 | service_enter_start_post(s); |
2213 | else | |
f42806df | 2214 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
34e9ba66 | 2215 | break; |
34e9ba66 | 2216 | } |
034c6ed7 | 2217 | |
bfba3256 LP |
2218 | /* Fall through */ |
2219 | ||
34e9ba66 | 2220 | case SERVICE_RUNNING: |
f42806df | 2221 | service_enter_running(s, f); |
34e9ba66 | 2222 | break; |
034c6ed7 | 2223 | |
34e9ba66 LP |
2224 | case SERVICE_STOP_SIGTERM: |
2225 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 2226 | |
34e9ba66 | 2227 | if (!control_pid_good(s)) |
f42806df | 2228 | service_enter_stop_post(s, f); |
5cb5a6ff | 2229 | |
34e9ba66 LP |
2230 | /* If there is still a control process, wait for that first */ |
2231 | break; | |
2232 | ||
bf108e55 LP |
2233 | case SERVICE_STOP_POST: |
2234 | case SERVICE_FINAL_SIGTERM: | |
2235 | case SERVICE_FINAL_SIGKILL: | |
2236 | ||
2237 | if (!control_pid_good(s)) | |
2238 | service_enter_dead(s, f, true); | |
2239 | break; | |
2240 | ||
34e9ba66 LP |
2241 | default: |
2242 | assert_not_reached("Uh, main process died at wrong time."); | |
2243 | } | |
034c6ed7 | 2244 | } |
5cb5a6ff | 2245 | |
034c6ed7 | 2246 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
2247 | s->control_pid = 0; |
2248 | ||
b708e7ce | 2249 | if (s->control_command) { |
8bb2d17d | 2250 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 2251 | |
b708e7ce | 2252 | if (s->control_command->ignore) |
f42806df | 2253 | f = SERVICE_SUCCESS; |
b708e7ce LP |
2254 | } |
2255 | ||
66870f90 ZJS |
2256 | log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id, |
2257 | "%s: control process exited, code=%s status=%i", | |
2258 | u->id, sigchld_code_to_string(code), status); | |
f42806df LP |
2259 | |
2260 | if (f != SERVICE_SUCCESS) | |
2261 | s->result = f; | |
034c6ed7 | 2262 | |
88f3e0c9 LP |
2263 | /* Immediately get rid of the cgroup, so that the |
2264 | * kernel doesn't delay the cgroup empty messages for | |
2265 | * the service cgroup any longer than necessary */ | |
4ad49000 | 2266 | service_kill_control_processes(s); |
88f3e0c9 | 2267 | |
34e9ba66 LP |
2268 | if (s->control_command && |
2269 | s->control_command->command_next && | |
f42806df | 2270 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
2271 | |
2272 | /* There is another command to * | |
2273 | * execute, so let's do that. */ | |
2274 | ||
8bb2d17d | 2275 | log_debug_unit(u->id, "%s running next control command for state %s", u->id, service_state_to_string(s->state)); |
f42806df | 2276 | service_run_next_control(s); |
034c6ed7 | 2277 | |
80876c20 | 2278 | } else { |
034c6ed7 LP |
2279 | /* No further commands for this step, so let's |
2280 | * figure out what to do next */ | |
2281 | ||
a16e1123 LP |
2282 | s->control_command = NULL; |
2283 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2284 | ||
8bb2d17d | 2285 | log_debug_unit(u->id, "%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state)); |
bd982a8b | 2286 | |
034c6ed7 LP |
2287 | switch (s->state) { |
2288 | ||
2289 | case SERVICE_START_PRE: | |
f42806df | 2290 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
2291 | service_enter_start(s); |
2292 | else | |
f42806df | 2293 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
034c6ed7 LP |
2294 | break; |
2295 | ||
2296 | case SERVICE_START: | |
bfba3256 LP |
2297 | if (s->type != SERVICE_FORKING) |
2298 | /* Maybe spurious event due to a reload that changed the type? */ | |
2299 | break; | |
034c6ed7 | 2300 | |
f42806df LP |
2301 | if (f != SERVICE_SUCCESS) { |
2302 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3a111838 MS |
2303 | break; |
2304 | } | |
034c6ed7 | 2305 | |
3a111838 | 2306 | if (s->pid_file) { |
f42806df LP |
2307 | bool has_start_post; |
2308 | int r; | |
2309 | ||
3a111838 MS |
2310 | /* Let's try to load the pid file here if we can. |
2311 | * The PID file might actually be created by a START_POST | |
2312 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
2313 | |
2314 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
2315 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
2316 | if (!has_start_post && r < 0) { |
2317 | r = service_demand_pid_file(s); | |
2318 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2319 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
2320 | break; |
2321 | } | |
034c6ed7 | 2322 | } else |
3a111838 | 2323 | service_search_main_pid(s); |
034c6ed7 | 2324 | |
3a111838 | 2325 | service_enter_start_post(s); |
034c6ed7 LP |
2326 | break; |
2327 | ||
2328 | case SERVICE_START_POST: | |
f42806df LP |
2329 | if (f != SERVICE_SUCCESS) { |
2330 | service_enter_stop(s, f); | |
2096e009 | 2331 | break; |
034c6ed7 LP |
2332 | } |
2333 | ||
2096e009 | 2334 | if (s->pid_file) { |
f42806df LP |
2335 | int r; |
2336 | ||
2337 | r = service_load_pid_file(s, true); | |
2096e009 MS |
2338 | if (r < 0) { |
2339 | r = service_demand_pid_file(s); | |
2340 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 2341 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
2096e009 MS |
2342 | break; |
2343 | } | |
2344 | } else | |
2345 | service_search_main_pid(s); | |
2346 | ||
f42806df | 2347 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 2348 | break; |
034c6ed7 LP |
2349 | |
2350 | case SERVICE_RELOAD: | |
f42806df | 2351 | if (f == SERVICE_SUCCESS) { |
5375410b | 2352 | service_load_pid_file(s, true); |
3185a36b LP |
2353 | service_search_main_pid(s); |
2354 | } | |
2355 | ||
f42806df LP |
2356 | s->reload_result = f; |
2357 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2358 | break; |
2359 | ||
2360 | case SERVICE_STOP: | |
f42806df | 2361 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
2362 | break; |
2363 | ||
2364 | case SERVICE_STOP_SIGTERM: | |
2365 | case SERVICE_STOP_SIGKILL: | |
2366 | if (main_pid_good(s) <= 0) | |
f42806df | 2367 | service_enter_stop_post(s, f); |
034c6ed7 LP |
2368 | |
2369 | /* If there is still a service | |
2370 | * process around, wait until | |
2371 | * that one quit, too */ | |
2372 | break; | |
2373 | ||
2374 | case SERVICE_STOP_POST: | |
2375 | case SERVICE_FINAL_SIGTERM: | |
2376 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
2377 | if (main_pid_good(s) <= 0) |
2378 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
2379 | break; |
2380 | ||
2381 | default: | |
2382 | assert_not_reached("Uh, control process died at wrong time."); | |
2383 | } | |
2384 | } | |
8c47c732 | 2385 | } |
c4e2ceae LP |
2386 | |
2387 | /* Notify clients about changed exit status */ | |
2388 | unit_add_to_dbus_queue(u); | |
a911bb9a LP |
2389 | |
2390 | /* We got one SIGCHLD for the service, let's watch all | |
2391 | * processes that are now running of the service, and watch | |
2392 | * that. Among the PIDs we then watch will be children | |
2393 | * reassigned to us, which hopefully allows us to identify | |
2394 | * when all children are gone */ | |
2395 | unit_tidy_watch_pids(u, s->main_pid, s->control_pid); | |
2396 | unit_watch_all_pids(u); | |
2397 | ||
2398 | /* If the PID set is empty now, then let's finish this off */ | |
2399 | if (set_isempty(u->pids)) | |
2400 | service_notify_cgroup_empty_event(u); | |
034c6ed7 LP |
2401 | } |
2402 | ||
718db961 LP |
2403 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
2404 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
2405 | |
2406 | assert(s); | |
718db961 | 2407 | assert(source == s->timer_event_source); |
034c6ed7 LP |
2408 | |
2409 | switch (s->state) { | |
2410 | ||
2411 | case SERVICE_START_PRE: | |
2412 | case SERVICE_START: | |
8bb2d17d | 2413 | log_warning_unit(UNIT(s)->id, "%s %s operation timed out. Terminating.", UNIT(s)->id, s->state == SERVICE_START ? "start" : "start-pre"); |
f42806df | 2414 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
2415 | break; |
2416 | ||
034c6ed7 | 2417 | case SERVICE_START_POST: |
8bb2d17d | 2418 | log_warning_unit(UNIT(s)->id, "%s start-post operation timed out. Stopping.", UNIT(s)->id); |
f42806df | 2419 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2420 | break; |
2421 | ||
e2f3b44c | 2422 | case SERVICE_RELOAD: |
8bb2d17d | 2423 | log_warning_unit(UNIT(s)->id, "%s reload operation timed out. Stopping.", UNIT(s)->id); |
f42806df LP |
2424 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
2425 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
2426 | break; |
2427 | ||
034c6ed7 | 2428 | case SERVICE_STOP: |
8bb2d17d | 2429 | log_warning_unit(UNIT(s)->id, "%s stopping timed out. Terminating.", UNIT(s)->id); |
f42806df | 2430 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2431 | break; |
2432 | ||
2433 | case SERVICE_STOP_SIGTERM: | |
4819ff03 | 2434 | if (s->kill_context.send_sigkill) { |
8bb2d17d | 2435 | log_warning_unit(UNIT(s)->id, "%s stop-sigterm timed out. Killing.", UNIT(s)->id); |
f42806df | 2436 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2437 | } else { |
8bb2d17d | 2438 | log_warning_unit(UNIT(s)->id, "%s stop-sigterm timed out. Skipping SIGKILL.", UNIT(s)->id); |
f42806df | 2439 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
2440 | } |
2441 | ||
034c6ed7 LP |
2442 | break; |
2443 | ||
2444 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 2445 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
2446 | * Must be something we cannot kill, so let's just be |
2447 | * weirded out and continue */ | |
2448 | ||
8bb2d17d | 2449 | log_warning_unit(UNIT(s)->id, "%s still around after SIGKILL. Ignoring.", UNIT(s)->id); |
f42806df | 2450 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2451 | break; |
2452 | ||
2453 | case SERVICE_STOP_POST: | |
8bb2d17d | 2454 | log_warning_unit(UNIT(s)->id, "%s stop-post timed out. Terminating.", UNIT(s)->id); |
f42806df | 2455 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
2456 | break; |
2457 | ||
2458 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 2459 | if (s->kill_context.send_sigkill) { |
8bb2d17d | 2460 | log_warning_unit(UNIT(s)->id, "%s stop-final-sigterm timed out. Killing.", UNIT(s)->id); |
f42806df | 2461 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 2462 | } else { |
8bb2d17d | 2463 | log_warning_unit(UNIT(s)->id, "%s stop-final-sigterm timed out. Skipping SIGKILL. Entering failed mode.", UNIT(s)->id); |
f42806df | 2464 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
2465 | } |
2466 | ||
034c6ed7 LP |
2467 | break; |
2468 | ||
2469 | case SERVICE_FINAL_SIGKILL: | |
8bb2d17d | 2470 | log_warning_unit(UNIT(s)->id, "%s still around after final SIGKILL. Entering failed mode.", UNIT(s)->id); |
f42806df | 2471 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
2472 | break; |
2473 | ||
2474 | case SERVICE_AUTO_RESTART: | |
718db961 | 2475 | log_info_unit(UNIT(s)->id, |
ef417cfd ZJS |
2476 | s->restart_usec > 0 ? |
2477 | "%s holdoff time over, scheduling restart." : | |
2478 | "%s has no holdoff time, scheduling restart.", | |
2479 | UNIT(s)->id); | |
034c6ed7 LP |
2480 | service_enter_restart(s); |
2481 | break; | |
2482 | ||
2483 | default: | |
2484 | assert_not_reached("Timeout at wrong time."); | |
2485 | } | |
718db961 LP |
2486 | |
2487 | return 0; | |
2488 | } | |
2489 | ||
2490 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
2491 | Service *s = SERVICE(userdata); | |
a7850c7d | 2492 | char t[FORMAT_TIMESPAN_MAX]; |
718db961 LP |
2493 | |
2494 | assert(s); | |
2495 | assert(source == s->watchdog_event_source); | |
2496 | ||
8bb2d17d | 2497 | log_error_unit(UNIT(s)->id, "%s watchdog timeout (limit %s)!", UNIT(s)->id, |
a7850c7d | 2498 | format_timespan(t, sizeof(t), s->watchdog_usec, 1)); |
8bb2d17d | 2499 | |
842129f5 LP |
2500 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_WATCHDOG); |
2501 | ||
718db961 | 2502 | return 0; |
5cb5a6ff LP |
2503 | } |
2504 | ||
c952c6ec | 2505 | static void service_notify_message(Unit *u, pid_t pid, char **tags) { |
8c47c732 LP |
2506 | Service *s = SERVICE(u); |
2507 | const char *e; | |
30b5275a | 2508 | bool notify_dbus = false; |
8c47c732 LP |
2509 | |
2510 | assert(u); | |
2511 | ||
ccd06097 ZJS |
2512 | log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT" (%s...)", |
2513 | u->id, pid, tags && *tags ? tags[0] : "(empty)"); | |
da13d4d2 | 2514 | |
c952c6ec | 2515 | if (s->notify_access == NOTIFY_NONE) { |
8bb2d17d | 2516 | log_warning_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception is disabled.", u->id, pid); |
c952c6ec LP |
2517 | return; |
2518 | } | |
2519 | ||
336c6e46 | 2520 | if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { |
336c6e46 LP |
2521 | if (s->main_pid != 0) |
2522 | 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); | |
2523 | else | |
3a33e61d | 2524 | 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 |
2525 | return; |
2526 | } | |
2527 | ||
8c47c732 | 2528 | /* Interpret MAINPID= */ |
5e56b378 LP |
2529 | e = strv_find_prefix(tags, "MAINPID="); |
2530 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { | |
5925dd3c | 2531 | if (parse_pid(e + 8, &pid) < 0) |
5e56b378 | 2532 | log_warning_unit(u->id, "Failed to parse MAINPID= field in notification message: %s", e); |
8c47c732 | 2533 | else { |
30b5275a | 2534 | log_debug_unit(u->id, "%s: got %s", u->id, e); |
5925dd3c | 2535 | service_set_main_pid(s, pid); |
7400b9d2 | 2536 | unit_watch_pid(UNIT(s), pid); |
30b5275a | 2537 | notify_dbus = true; |
8c47c732 LP |
2538 | } |
2539 | } | |
2540 | ||
2541 | /* Interpret READY= */ | |
30b5275a LP |
2542 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START && strv_find(tags, "READY=1")) { |
2543 | log_debug_unit(u->id, "%s: got READY=1", u->id); | |
8c47c732 | 2544 | service_enter_start_post(s); |
30b5275a | 2545 | notify_dbus = true; |
8c47c732 LP |
2546 | } |
2547 | ||
2548 | /* Interpret STATUS= */ | |
7f110ff9 LP |
2549 | e = strv_find_prefix(tags, "STATUS="); |
2550 | if (e) { | |
8c47c732 LP |
2551 | char *t; |
2552 | ||
3a2776bc | 2553 | if (e[7]) { |
7f110ff9 | 2554 | if (!utf8_is_valid(e+7)) { |
30b5275a | 2555 | log_warning_unit(u->id, "Status message in notification is not UTF-8 clean."); |
7f110ff9 LP |
2556 | return; |
2557 | } | |
2558 | ||
30b5275a LP |
2559 | log_debug_unit(u->id, "%s: got %s", u->id, e); |
2560 | ||
7f110ff9 LP |
2561 | t = strdup(e+7); |
2562 | if (!t) { | |
30b5275a | 2563 | log_oom(); |
3a2776bc LP |
2564 | return; |
2565 | } | |
2566 | ||
30b5275a LP |
2567 | } else |
2568 | t = NULL; | |
8c47c732 | 2569 | |
30b5275a | 2570 | if (!streq_ptr(s->status_text, t)) { |
3a2776bc LP |
2571 | free(s->status_text); |
2572 | s->status_text = t; | |
30b5275a LP |
2573 | notify_dbus = true; |
2574 | } else | |
2575 | free(t); | |
8c47c732 | 2576 | } |
842129f5 | 2577 | |
4774e357 MAA |
2578 | /* Interpret ERRNO= */ |
2579 | e = strv_find_prefix(tags, "ERRNO="); | |
2580 | if (e) { | |
2581 | int status_errno; | |
2582 | ||
2040ccf1 | 2583 | if (safe_atoi(e + 6, &status_errno) < 0 || status_errno < 0) |
4774e357 MAA |
2584 | log_warning_unit(u->id, "Failed to parse ERRNO= field in notification message: %s", e); |
2585 | else { | |
2586 | log_debug_unit(u->id, "%s: got %s", u->id, e); | |
2587 | ||
2588 | if (s->status_errno != status_errno) { | |
2589 | s->status_errno = status_errno; | |
2590 | notify_dbus = true; | |
2591 | } | |
2592 | } | |
2593 | } | |
2594 | ||
6f285378 | 2595 | /* Interpret WATCHDOG= */ |
a6927d7f | 2596 | if (strv_find(tags, "WATCHDOG=1")) { |
842129f5 LP |
2597 | log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id); |
2598 | service_reset_watchdog(s); | |
a6927d7f | 2599 | } |
c4e2ceae LP |
2600 | |
2601 | /* Notify clients about changed status or main pid */ | |
30b5275a LP |
2602 | if (notify_dbus) |
2603 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
2604 | } |
2605 | ||
68db7a3b ZJS |
2606 | static int service_get_timeout(Unit *u, uint64_t *timeout) { |
2607 | Service *s = SERVICE(u); | |
2608 | int r; | |
2609 | ||
2610 | if (!s->timer_event_source) | |
2611 | return 0; | |
2612 | ||
2613 | r = sd_event_source_get_time(s->timer_event_source, timeout); | |
2614 | if (r < 0) | |
2615 | return r; | |
2616 | ||
2617 | return 1; | |
2618 | } | |
2619 | ||
05e343b7 LP |
2620 | static void service_bus_name_owner_change( |
2621 | Unit *u, | |
2622 | const char *name, | |
2623 | const char *old_owner, | |
2624 | const char *new_owner) { | |
2625 | ||
2626 | Service *s = SERVICE(u); | |
718db961 | 2627 | int r; |
05e343b7 LP |
2628 | |
2629 | assert(s); | |
2630 | assert(name); | |
2631 | ||
2632 | assert(streq(s->bus_name, name)); | |
2633 | assert(old_owner || new_owner); | |
2634 | ||
2635 | if (old_owner && new_owner) | |
8bb2d17d | 2636 | 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 | 2637 | else if (old_owner) |
8bb2d17d | 2638 | log_debug_unit(u->id, "%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner); |
05e343b7 | 2639 | else |
8bb2d17d | 2640 | log_debug_unit(u->id, "%s's D-Bus name %s now registered by %s", u->id, name, new_owner); |
05e343b7 LP |
2641 | |
2642 | s->bus_name_good = !!new_owner; | |
2643 | ||
2644 | if (s->type == SERVICE_DBUS) { | |
2645 | ||
2646 | /* service_enter_running() will figure out what to | |
2647 | * do */ | |
2648 | if (s->state == SERVICE_RUNNING) | |
f42806df | 2649 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
2650 | else if (s->state == SERVICE_START && new_owner) |
2651 | service_enter_start_post(s); | |
2652 | ||
2653 | } else if (new_owner && | |
2654 | s->main_pid <= 0 && | |
2655 | (s->state == SERVICE_START || | |
2656 | s->state == SERVICE_START_POST || | |
2657 | s->state == SERVICE_RUNNING || | |
2658 | s->state == SERVICE_RELOAD)) { | |
2659 | ||
5b12334d | 2660 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
718db961 | 2661 | pid_t pid; |
05e343b7 | 2662 | |
718db961 | 2663 | /* Try to acquire PID from bus service */ |
05e343b7 | 2664 | |
49b832c5 | 2665 | r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
2666 | if (r >= 0) |
2667 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 LP |
2668 | if (r >= 0) { |
2669 | log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid); | |
05e343b7 | 2670 | |
718db961 LP |
2671 | service_set_main_pid(s, pid); |
2672 | unit_watch_pid(UNIT(s), pid); | |
2673 | } | |
7400b9d2 | 2674 | } |
05e343b7 LP |
2675 | } |
2676 | ||
6cf6bbc2 | 2677 | int service_set_socket_fd(Service *s, int fd, Socket *sock) { |
79a98c60 LP |
2678 | _cleanup_free_ char *peer = NULL; |
2679 | int r; | |
57020a3a | 2680 | |
4f2d528d LP |
2681 | assert(s); |
2682 | assert(fd >= 0); | |
2683 | ||
2684 | /* This is called by the socket code when instantiating a new | |
2685 | * service for a stream socket and the socket needs to be | |
2686 | * configured. */ | |
2687 | ||
1124fe6f | 2688 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
2689 | return -EINVAL; |
2690 | ||
2691 | if (s->socket_fd >= 0) | |
2692 | return -EBUSY; | |
2693 | ||
2694 | if (s->state != SERVICE_DEAD) | |
2695 | return -EAGAIN; | |
2696 | ||
79a98c60 LP |
2697 | if (getpeername_pretty(fd, &peer) >= 0) { |
2698 | ||
2699 | if (UNIT(s)->description) { | |
2700 | _cleanup_free_ char *a; | |
2701 | ||
2702 | a = strjoin(UNIT(s)->description, " (", peer, ")", NULL); | |
2703 | if (!a) | |
2704 | return -ENOMEM; | |
2705 | ||
2706 | r = unit_set_description(UNIT(s), a); | |
2707 | } else | |
2708 | r = unit_set_description(UNIT(s), peer); | |
2709 | ||
2710 | if (r < 0) | |
2711 | return r; | |
2712 | } | |
2713 | ||
4f2d528d | 2714 | s->socket_fd = fd; |
6cf6bbc2 | 2715 | |
57020a3a LP |
2716 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
2717 | ||
2718 | return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); | |
4f2d528d LP |
2719 | } |
2720 | ||
fdf20a31 | 2721 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
2722 | Service *s = SERVICE(u); |
2723 | ||
2724 | assert(s); | |
2725 | ||
fdf20a31 | 2726 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
2727 | service_set_state(s, SERVICE_DEAD); |
2728 | ||
f42806df LP |
2729 | s->result = SERVICE_SUCCESS; |
2730 | s->reload_result = SERVICE_SUCCESS; | |
451b34cc LP |
2731 | |
2732 | RATELIMIT_RESET(s->start_limit); | |
5632e374 LP |
2733 | } |
2734 | ||
718db961 | 2735 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 2736 | Service *s = SERVICE(u); |
41efeaec | 2737 | |
814cc562 | 2738 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
2739 | } |
2740 | ||
94f04347 LP |
2741 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { |
2742 | [SERVICE_DEAD] = "dead", | |
2743 | [SERVICE_START_PRE] = "start-pre", | |
2744 | [SERVICE_START] = "start", | |
2745 | [SERVICE_START_POST] = "start-post", | |
2746 | [SERVICE_RUNNING] = "running", | |
80876c20 | 2747 | [SERVICE_EXITED] = "exited", |
94f04347 LP |
2748 | [SERVICE_RELOAD] = "reload", |
2749 | [SERVICE_STOP] = "stop", | |
2750 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
2751 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
2752 | [SERVICE_STOP_POST] = "stop-post", | |
2753 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
2754 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
fdf20a31 | 2755 | [SERVICE_FAILED] = "failed", |
94f04347 LP |
2756 | [SERVICE_AUTO_RESTART] = "auto-restart", |
2757 | }; | |
2758 | ||
2759 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
2760 | ||
2761 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { | |
525ee6f4 LP |
2762 | [SERVICE_RESTART_NO] = "no", |
2763 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 2764 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 2765 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 2766 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 2767 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 2768 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
2769 | }; |
2770 | ||
2771 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
2772 | ||
2773 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 2774 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 2775 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 2776 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 2777 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
2778 | [SERVICE_NOTIFY] = "notify", |
2779 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
2780 | }; |
2781 | ||
2782 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
2783 | ||
e537352b | 2784 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
2785 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
2786 | [SERVICE_EXEC_START] = "ExecStart", | |
2787 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
2788 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
2789 | [SERVICE_EXEC_STOP] = "ExecStop", | |
2790 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
2791 | }; | |
2792 | ||
2793 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
2794 | ||
c952c6ec LP |
2795 | static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = { |
2796 | [NOTIFY_NONE] = "none", | |
2797 | [NOTIFY_MAIN] = "main", | |
2798 | [NOTIFY_ALL] = "all" | |
2799 | }; | |
2800 | ||
2801 | DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess); | |
2802 | ||
f42806df LP |
2803 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
2804 | [SERVICE_SUCCESS] = "success", | |
2805 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
2806 | [SERVICE_FAILURE_TIMEOUT] = "timeout", | |
2807 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
2808 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 2809 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a LP |
2810 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
2811 | [SERVICE_FAILURE_START_LIMIT] = "start-limit" | |
f42806df LP |
2812 | }; |
2813 | ||
2814 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
2815 | ||
bf500566 MO |
2816 | static const char* const failure_action_table[_SERVICE_FAILURE_ACTION_MAX] = { |
2817 | [SERVICE_FAILURE_ACTION_NONE] = "none", | |
2818 | [SERVICE_FAILURE_ACTION_REBOOT] = "reboot", | |
2819 | [SERVICE_FAILURE_ACTION_REBOOT_FORCE] = "reboot-force", | |
2820 | [SERVICE_FAILURE_ACTION_REBOOT_IMMEDIATE] = "reboot-immediate" | |
4b939747 | 2821 | }; |
bf500566 | 2822 | DEFINE_STRING_TABLE_LOOKUP(failure_action, FailureAction); |
4b939747 | 2823 | |
87f0e418 | 2824 | const UnitVTable service_vtable = { |
7d17cfbc | 2825 | .object_size = sizeof(Service), |
718db961 LP |
2826 | .exec_context_offset = offsetof(Service, exec_context), |
2827 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
2828 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 2829 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
3ef63c31 | 2830 | |
f975e971 LP |
2831 | .sections = |
2832 | "Unit\0" | |
2833 | "Service\0" | |
2834 | "Install\0", | |
4ad49000 | 2835 | .private_section = "Service", |
71645aca | 2836 | |
034c6ed7 LP |
2837 | .init = service_init, |
2838 | .done = service_done, | |
a16e1123 LP |
2839 | .load = service_load, |
2840 | ||
2841 | .coldplug = service_coldplug, | |
034c6ed7 | 2842 | |
5cb5a6ff LP |
2843 | .dump = service_dump, |
2844 | ||
2845 | .start = service_start, | |
2846 | .stop = service_stop, | |
2847 | .reload = service_reload, | |
2848 | ||
034c6ed7 LP |
2849 | .can_reload = service_can_reload, |
2850 | ||
8a0867d6 LP |
2851 | .kill = service_kill, |
2852 | ||
a16e1123 LP |
2853 | .serialize = service_serialize, |
2854 | .deserialize_item = service_deserialize_item, | |
2855 | ||
5cb5a6ff | 2856 | .active_state = service_active_state, |
10a94420 | 2857 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 2858 | |
701cc384 LP |
2859 | .check_gc = service_check_gc, |
2860 | .check_snapshot = service_check_snapshot, | |
2861 | ||
034c6ed7 | 2862 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 2863 | |
fdf20a31 | 2864 | .reset_failed = service_reset_failed, |
5632e374 | 2865 | |
4ad49000 | 2866 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 2867 | .notify_message = service_notify_message, |
8e274523 | 2868 | |
05e343b7 | 2869 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 2870 | |
c4e2ceae | 2871 | .bus_interface = "org.freedesktop.systemd1.Service", |
718db961 | 2872 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
2873 | .bus_set_property = bus_service_set_property, |
2874 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 2875 | |
68db7a3b | 2876 | .get_timeout = service_get_timeout, |
718db961 LP |
2877 | .can_transient = true, |
2878 | ||
c6918296 MS |
2879 | .status_message_formats = { |
2880 | .starting_stopping = { | |
2881 | [0] = "Starting %s...", | |
2882 | [1] = "Stopping %s...", | |
2883 | }, | |
2884 | .finished_start_job = { | |
2885 | [JOB_DONE] = "Started %s.", | |
2886 | [JOB_FAILED] = "Failed to start %s.", | |
2887 | [JOB_DEPENDENCY] = "Dependency failed for %s.", | |
2888 | [JOB_TIMEOUT] = "Timed out starting %s.", | |
2889 | }, | |
2890 | .finished_stop_job = { | |
2891 | [JOB_DONE] = "Stopped %s.", | |
2892 | [JOB_FAILED] = "Stopped (with error) %s.", | |
2893 | [JOB_TIMEOUT] = "Timed out stopping %s.", | |
2894 | }, | |
2895 | }, | |
5cb5a6ff | 2896 | }; |