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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
a7334b09 | 2 | |
5cb5a6ff | 3 | #include <errno.h> |
ca78ad1d ZJS |
4 | #include <sys/stat.h> |
5 | #include <sys/types.h> | |
2c4104f0 | 6 | #include <unistd.h> |
5cb5a6ff | 7 | |
7a0019d3 LP |
8 | #include "sd-messages.h" |
9 | ||
b5efdb8a | 10 | #include "alloc-util.h" |
574634bc | 11 | #include "async.h" |
4f5dd394 LP |
12 | #include "bus-error.h" |
13 | #include "bus-kernel.h" | |
14 | #include "bus-util.h" | |
f4351959 | 15 | #include "chase-symlinks.h" |
28db6fbf | 16 | #include "constants.h" |
4139c1b2 | 17 | #include "dbus-service.h" |
6fcbec6f | 18 | #include "dbus-unit.h" |
4d1a6904 | 19 | #include "env-util.h" |
4f5dd394 LP |
20 | #include "escape.h" |
21 | #include "exit-status.h" | |
3ffd4af2 | 22 | #include "fd-util.h" |
a5c32cff | 23 | #include "fileio.h" |
f97b34a6 | 24 | #include "format-util.h" |
4f5dd394 LP |
25 | #include "load-dropin.h" |
26 | #include "load-fragment.h" | |
27 | #include "log.h" | |
28 | #include "manager.h" | |
6bedfcbb | 29 | #include "parse-util.h" |
4f5dd394 | 30 | #include "path-util.h" |
0b452006 | 31 | #include "process-util.h" |
5918a933 | 32 | #include "random-util.h" |
d68c645b | 33 | #include "serialize.h" |
3ffd4af2 | 34 | #include "service.h" |
24882e06 | 35 | #include "signal-util.h" |
4f5dd394 | 36 | #include "special.h" |
e266c068 | 37 | #include "stdio-util.h" |
8b43440b | 38 | #include "string-table.h" |
07630cea | 39 | #include "string-util.h" |
4f5dd394 LP |
40 | #include "strv.h" |
41 | #include "unit-name.h" | |
4f5dd394 LP |
42 | #include "unit.h" |
43 | #include "utf8.h" | |
034c6ed7 | 44 | |
edbf8984 ZJS |
45 | #define service_spawn(...) service_spawn_internal(__func__, __VA_ARGS__) |
46 | ||
acbb0225 | 47 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 | 48 | [SERVICE_DEAD] = UNIT_INACTIVE, |
31cd5f63 | 49 | [SERVICE_CONDITION] = UNIT_ACTIVATING, |
87f0e418 LP |
50 | [SERVICE_START_PRE] = UNIT_ACTIVATING, |
51 | [SERVICE_START] = UNIT_ACTIVATING, | |
52 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
53 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 54 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 55 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 | 56 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
c87700a1 | 57 | [SERVICE_STOP_WATCHDOG] = UNIT_DEACTIVATING, |
87f0e418 LP |
58 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
59 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
60 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
bf760801 | 61 | [SERVICE_FINAL_WATCHDOG] = UNIT_DEACTIVATING, |
87f0e418 LP |
62 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, |
63 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 64 | [SERVICE_FAILED] = UNIT_FAILED, |
4c2f5842 LP |
65 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, |
66 | [SERVICE_CLEANING] = UNIT_MAINTENANCE, | |
034c6ed7 | 67 | }; |
5cb5a6ff | 68 | |
e056b01d LP |
69 | /* For Type=idle we never want to delay any other jobs, hence we |
70 | * consider idle jobs active as soon as we start working on them */ | |
71 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
72 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
31cd5f63 | 73 | [SERVICE_CONDITION] = UNIT_ACTIVE, |
e056b01d LP |
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, | |
c87700a1 | 81 | [SERVICE_STOP_WATCHDOG] = UNIT_DEACTIVATING, |
e056b01d LP |
82 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
83 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
84 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
bf760801 | 85 | [SERVICE_FINAL_WATCHDOG] = UNIT_DEACTIVATING, |
e056b01d LP |
86 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, |
87 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
88 | [SERVICE_FAILED] = UNIT_FAILED, | |
4c2f5842 LP |
89 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, |
90 | [SERVICE_CLEANING] = UNIT_MAINTENANCE, | |
e056b01d LP |
91 | }; |
92 | ||
5686391b | 93 | static int service_dispatch_inotify_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
718db961 LP |
94 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); |
95 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); | |
5686391b | 96 | static int service_dispatch_exec_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
718db961 | 97 | |
842129f5 | 98 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
308d72dc | 99 | static void service_enter_reload_by_notify(Service *s); |
842129f5 | 100 | |
a16e1123 LP |
101 | static void service_init(Unit *u) { |
102 | Service *s = SERVICE(u); | |
103 | ||
104 | assert(u); | |
ac155bb8 | 105 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 106 | |
1f19a534 OS |
107 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
108 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
dc653bf4 JK |
109 | s->timeout_abort_usec = u->manager->default_timeout_abort_usec; |
110 | s->timeout_abort_set = u->manager->default_timeout_abort_set; | |
1f19a534 | 111 | s->restart_usec = u->manager->default_restart_usec; |
36c16a7c | 112 | s->runtime_max_usec = USEC_INFINITY; |
0b86feac | 113 | s->type = _SERVICE_TYPE_INVALID; |
a16e1123 | 114 | s->socket_fd = -1; |
a34ceba6 | 115 | s->stdin_fd = s->stdout_fd = s->stderr_fd = -1; |
3185a36b | 116 | s->guess_main_pid = true; |
a16e1123 | 117 | |
a16e1123 | 118 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
00f5ad93 LP |
119 | |
120 | s->exec_context.keyring_mode = MANAGER_IS_SYSTEM(u->manager) ? | |
121 | EXEC_KEYRING_PRIVATE : EXEC_KEYRING_INHERIT; | |
aa8c4bbf LP |
122 | |
123 | s->watchdog_original_usec = USEC_INFINITY; | |
afcfaa69 LP |
124 | |
125 | s->oom_policy = _OOM_POLICY_INVALID; | |
a16e1123 LP |
126 | } |
127 | ||
5e94833f LP |
128 | static void service_unwatch_control_pid(Service *s) { |
129 | assert(s); | |
130 | ||
131 | if (s->control_pid <= 0) | |
132 | return; | |
133 | ||
8f03de53 | 134 | unit_unwatch_pid(UNIT(s), TAKE_PID(s->control_pid)); |
5e94833f LP |
135 | } |
136 | ||
137 | static void service_unwatch_main_pid(Service *s) { | |
138 | assert(s); | |
139 | ||
140 | if (s->main_pid <= 0) | |
141 | return; | |
142 | ||
8f03de53 | 143 | unit_unwatch_pid(UNIT(s), TAKE_PID(s->main_pid)); |
5e94833f LP |
144 | } |
145 | ||
3e52541e MS |
146 | static void service_unwatch_pid_file(Service *s) { |
147 | if (!s->pid_file_pathspec) | |
148 | return; | |
149 | ||
f2341e0a | 150 | log_unit_debug(UNIT(s), "Stopping watch for PID file %s", s->pid_file_pathspec->path); |
718db961 | 151 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e | 152 | path_spec_done(s->pid_file_pathspec); |
a1e58e8e | 153 | s->pid_file_pathspec = mfree(s->pid_file_pathspec); |
3e52541e MS |
154 | } |
155 | ||
5925dd3c LP |
156 | static int service_set_main_pid(Service *s, pid_t pid) { |
157 | assert(s); | |
158 | ||
159 | if (pid <= 1) | |
160 | return -EINVAL; | |
161 | ||
df0ff127 | 162 | if (pid == getpid_cached()) |
5925dd3c LP |
163 | return -EINVAL; |
164 | ||
7400b9d2 LP |
165 | if (s->main_pid == pid && s->main_pid_known) |
166 | return 0; | |
167 | ||
168 | if (s->main_pid != pid) { | |
169 | service_unwatch_main_pid(s); | |
170 | exec_status_start(&s->main_exec_status, pid); | |
171 | } | |
41efeaec | 172 | |
6dfa5494 LP |
173 | s->main_pid = pid; |
174 | s->main_pid_known = true; | |
4d051546 | 175 | s->main_pid_alien = pid_is_my_child(pid) == 0; |
6dfa5494 | 176 | |
4d051546 | 177 | if (s->main_pid_alien) |
f2341e0a | 178 | log_unit_warning(UNIT(s), "Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.", pid); |
5925dd3c LP |
179 | |
180 | return 0; | |
181 | } | |
182 | ||
3e7a1f50 | 183 | void service_close_socket_fd(Service *s) { |
4f2d528d LP |
184 | assert(s); |
185 | ||
5cc3985e | 186 | /* Undo the effect of service_set_socket_fd(). */ |
4f2d528d | 187 | |
5cc3985e | 188 | s->socket_fd = asynchronous_close(s->socket_fd); |
6cf6bbc2 | 189 | |
5cc3985e LP |
190 | if (UNIT_ISSET(s->accept_socket)) { |
191 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); | |
192 | unit_ref_unset(&s->accept_socket); | |
193 | } | |
3fabebf4 LP |
194 | |
195 | s->socket_peer = socket_peer_unref(s->socket_peer); | |
6cf6bbc2 LP |
196 | } |
197 | ||
a6927d7f MO |
198 | static void service_stop_watchdog(Service *s) { |
199 | assert(s); | |
200 | ||
5dcadb4c | 201 | s->watchdog_event_source = sd_event_source_disable_unref(s->watchdog_event_source); |
842129f5 | 202 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
203 | } |
204 | ||
842129f5 | 205 | static void service_start_watchdog(Service *s) { |
2787d83c | 206 | usec_t watchdog_usec; |
9fb1cdb4 | 207 | int r; |
bb242b7b MO |
208 | |
209 | assert(s); | |
210 | ||
2787d83c | 211 | watchdog_usec = service_get_watchdog_usec(s); |
0da36375 | 212 | if (!timestamp_is_set(watchdog_usec)) { |
9fb1cdb4 | 213 | service_stop_watchdog(s); |
bb242b7b | 214 | return; |
9fb1cdb4 | 215 | } |
bb242b7b | 216 | |
718db961 | 217 | if (s->watchdog_event_source) { |
2787d83c | 218 | r = sd_event_source_set_time(s->watchdog_event_source, usec_add(s->watchdog_timestamp.monotonic, watchdog_usec)); |
718db961 | 219 | if (r < 0) { |
f2341e0a | 220 | log_unit_warning_errno(UNIT(s), r, "Failed to reset watchdog timer: %m"); |
718db961 LP |
221 | return; |
222 | } | |
223 | ||
842129f5 | 224 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 225 | } else { |
6a0f1f6d LP |
226 | r = sd_event_add_time( |
227 | UNIT(s)->manager->event, | |
228 | &s->watchdog_event_source, | |
229 | CLOCK_MONOTONIC, | |
2787d83c | 230 | usec_add(s->watchdog_timestamp.monotonic, watchdog_usec), 0, |
6a0f1f6d | 231 | service_dispatch_watchdog, s); |
c4ef3317 | 232 | if (r < 0) { |
f2341e0a | 233 | log_unit_warning_errno(UNIT(s), r, "Failed to add watchdog timer: %m"); |
c4ef3317 LP |
234 | return; |
235 | } | |
236 | ||
7dfbe2e3 TG |
237 | (void) sd_event_source_set_description(s->watchdog_event_source, "service-watchdog"); |
238 | ||
c4ef3317 LP |
239 | /* Let's process everything else which might be a sign |
240 | * of living before we consider a service died. */ | |
241 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
242 | } | |
bb242b7b | 243 | if (r < 0) |
f2341e0a | 244 | log_unit_warning_errno(UNIT(s), r, "Failed to install watchdog timer: %m"); |
bb242b7b MO |
245 | } |
246 | ||
ec35a7f6 LP |
247 | static void service_extend_event_source_timeout(Service *s, sd_event_source *source, usec_t extended) { |
248 | usec_t current; | |
249 | int r; | |
250 | ||
a327431b DB |
251 | assert(s); |
252 | ||
ec35a7f6 LP |
253 | /* Extends the specified event source timer to at least the specified time, unless it is already later |
254 | * anyway. */ | |
a327431b | 255 | |
ec35a7f6 LP |
256 | if (!source) |
257 | return; | |
a327431b | 258 | |
ec35a7f6 LP |
259 | r = sd_event_source_get_time(source, ¤t); |
260 | if (r < 0) { | |
261 | const char *desc; | |
262 | (void) sd_event_source_get_description(s->timer_event_source, &desc); | |
263 | log_unit_warning_errno(UNIT(s), r, "Failed to retrieve timeout time for event source '%s', ignoring: %m", strna(desc)); | |
264 | return; | |
265 | } | |
a327431b | 266 | |
ec35a7f6 LP |
267 | if (current >= extended) /* Current timeout is already longer, ignore this. */ |
268 | return; | |
a327431b | 269 | |
ec35a7f6 LP |
270 | r = sd_event_source_set_time(source, extended); |
271 | if (r < 0) { | |
272 | const char *desc; | |
273 | (void) sd_event_source_get_description(s->timer_event_source, &desc); | |
365c2885 | 274 | log_unit_warning_errno(UNIT(s), r, "Failed to set timeout time for event source '%s', ignoring %m", strna(desc)); |
a327431b DB |
275 | } |
276 | } | |
277 | ||
ec35a7f6 LP |
278 | static void service_extend_timeout(Service *s, usec_t extend_timeout_usec) { |
279 | usec_t extended; | |
280 | ||
281 | assert(s); | |
282 | ||
0da36375 | 283 | if (!timestamp_is_set(extend_timeout_usec)) |
ec35a7f6 LP |
284 | return; |
285 | ||
286 | extended = usec_add(now(CLOCK_MONOTONIC), extend_timeout_usec); | |
287 | ||
288 | service_extend_event_source_timeout(s, s->timer_event_source, extended); | |
289 | service_extend_event_source_timeout(s, s->watchdog_event_source, extended); | |
290 | } | |
291 | ||
a6927d7f MO |
292 | static void service_reset_watchdog(Service *s) { |
293 | assert(s); | |
294 | ||
295 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 296 | service_start_watchdog(s); |
a6927d7f MO |
297 | } |
298 | ||
95d0d8ed | 299 | static void service_override_watchdog_timeout(Service *s, usec_t watchdog_override_usec) { |
2787d83c M |
300 | assert(s); |
301 | ||
302 | s->watchdog_override_enable = true; | |
303 | s->watchdog_override_usec = watchdog_override_usec; | |
304 | service_reset_watchdog(s); | |
305 | ||
306 | log_unit_debug(UNIT(s), "watchdog_usec="USEC_FMT, s->watchdog_usec); | |
307 | log_unit_debug(UNIT(s), "watchdog_override_usec="USEC_FMT, s->watchdog_override_usec); | |
308 | } | |
309 | ||
a354329f LP |
310 | static void service_fd_store_unlink(ServiceFDStore *fs) { |
311 | ||
312 | if (!fs) | |
313 | return; | |
314 | ||
315 | if (fs->service) { | |
316 | assert(fs->service->n_fd_store > 0); | |
317 | LIST_REMOVE(fd_store, fs->service->fd_store, fs); | |
318 | fs->service->n_fd_store--; | |
319 | } | |
320 | ||
1d3fe304 | 321 | sd_event_source_disable_unref(fs->event_source); |
a354329f | 322 | |
8dd4c05b | 323 | free(fs->fdname); |
a354329f LP |
324 | safe_close(fs->fd); |
325 | free(fs); | |
326 | } | |
327 | ||
f0bfbfac ZJS |
328 | static void service_release_fd_store(Service *s) { |
329 | assert(s); | |
330 | ||
7eb2a8a1 LP |
331 | if (s->n_keep_fd_store > 0) |
332 | return; | |
333 | ||
f0bfbfac ZJS |
334 | log_unit_debug(UNIT(s), "Releasing all stored fds"); |
335 | while (s->fd_store) | |
336 | service_fd_store_unlink(s->fd_store); | |
337 | ||
338 | assert(s->n_fd_store == 0); | |
339 | } | |
340 | ||
7eb2a8a1 | 341 | static void service_release_resources(Unit *u) { |
a354329f LP |
342 | Service *s = SERVICE(u); |
343 | ||
344 | assert(s); | |
345 | ||
a34ceba6 | 346 | if (!s->fd_store && s->stdin_fd < 0 && s->stdout_fd < 0 && s->stderr_fd < 0) |
a354329f LP |
347 | return; |
348 | ||
f0bfbfac | 349 | log_unit_debug(u, "Releasing resources."); |
a354329f | 350 | |
a34ceba6 LP |
351 | s->stdin_fd = safe_close(s->stdin_fd); |
352 | s->stdout_fd = safe_close(s->stdout_fd); | |
353 | s->stderr_fd = safe_close(s->stderr_fd); | |
354 | ||
7eb2a8a1 | 355 | service_release_fd_store(s); |
a354329f LP |
356 | } |
357 | ||
87f0e418 LP |
358 | static void service_done(Unit *u) { |
359 | Service *s = SERVICE(u); | |
44d8db9e LP |
360 | |
361 | assert(s); | |
362 | ||
a1e58e8e LP |
363 | s->pid_file = mfree(s->pid_file); |
364 | s->status_text = mfree(s->status_text); | |
efe6e7d3 | 365 | |
e8a565cb | 366 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, false); |
e537352b | 367 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 368 | s->control_command = NULL; |
867b3b7d | 369 | s->main_command = NULL; |
44d8db9e | 370 | |
29206d46 LP |
371 | dynamic_creds_unref(&s->dynamic_creds); |
372 | ||
37520c1b LP |
373 | exit_status_set_free(&s->restart_prevent_status); |
374 | exit_status_set_free(&s->restart_force_status); | |
375 | exit_status_set_free(&s->success_status); | |
96342de6 | 376 | |
44d8db9e LP |
377 | /* This will leak a process, but at least no memory or any of |
378 | * our resources */ | |
5e94833f LP |
379 | service_unwatch_main_pid(s); |
380 | service_unwatch_control_pid(s); | |
3e52541e | 381 | service_unwatch_pid_file(s); |
44d8db9e | 382 | |
05e343b7 | 383 | if (s->bus_name) { |
ac155bb8 | 384 | unit_unwatch_bus_name(u, s->bus_name); |
a1e58e8e | 385 | s->bus_name = mfree(s->bus_name); |
05e343b7 LP |
386 | } |
387 | ||
d8ccf5fd DM |
388 | s->bus_name_owner = mfree(s->bus_name_owner); |
389 | ||
064c5938 ZJS |
390 | s->usb_function_descriptors = mfree(s->usb_function_descriptors); |
391 | s->usb_function_strings = mfree(s->usb_function_strings); | |
392 | ||
4f2d528d LP |
393 | service_close_socket_fd(s); |
394 | ||
57020a3a | 395 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 396 | |
bb242b7b MO |
397 | service_stop_watchdog(s); |
398 | ||
5dcadb4c ZJS |
399 | s->timer_event_source = sd_event_source_disable_unref(s->timer_event_source); |
400 | s->exec_fd_event_source = sd_event_source_disable_unref(s->exec_fd_event_source); | |
a354329f | 401 | |
e39eb045 LP |
402 | s->bus_name_pid_lookup_slot = sd_bus_slot_unref(s->bus_name_pid_lookup_slot); |
403 | ||
7eb2a8a1 | 404 | service_release_resources(u); |
718db961 LP |
405 | } |
406 | ||
2339fc93 | 407 | static int on_fd_store_io(sd_event_source *e, int fd, uint32_t revents, void *userdata) { |
99534007 | 408 | ServiceFDStore *fs = ASSERT_PTR(userdata); |
2339fc93 LP |
409 | |
410 | assert(e); | |
2339fc93 LP |
411 | |
412 | /* If we get either EPOLLHUP or EPOLLERR, it's time to remove this entry from the fd store */ | |
16f70d63 ZJS |
413 | log_unit_debug(UNIT(fs->service), |
414 | "Received %s on stored fd %d (%s), closing.", | |
415 | revents & EPOLLERR ? "EPOLLERR" : "EPOLLHUP", | |
416 | fs->fd, strna(fs->fdname)); | |
2339fc93 LP |
417 | service_fd_store_unlink(fs); |
418 | return 0; | |
419 | } | |
420 | ||
cb5a46b8 | 421 | static int service_add_fd_store(Service *s, int fd, const char *name, bool do_poll) { |
2339fc93 LP |
422 | ServiceFDStore *fs; |
423 | int r; | |
424 | ||
9021ff17 ZJS |
425 | /* fd is always consumed if we return >= 0 */ |
426 | ||
2339fc93 LP |
427 | assert(s); |
428 | assert(fd >= 0); | |
429 | ||
430 | if (s->n_fd_store >= s->n_fd_store_max) | |
b0924635 ZJS |
431 | return -EXFULL; /* Our store is full. |
432 | * Use this errno rather than E[NM]FILE to distinguish from | |
433 | * the case where systemd itself hits the file limit. */ | |
2339fc93 | 434 | |
03677889 YW |
435 | LIST_FOREACH(fd_store, i, s->fd_store) { |
436 | r = same_fd(i->fd, fd); | |
2339fc93 LP |
437 | if (r < 0) |
438 | return r; | |
439 | if (r > 0) { | |
2339fc93 | 440 | safe_close(fd); |
9021ff17 | 441 | return 0; /* fd already included */ |
2339fc93 LP |
442 | } |
443 | } | |
444 | ||
b0cea477 | 445 | fs = new(ServiceFDStore, 1); |
2339fc93 LP |
446 | if (!fs) |
447 | return -ENOMEM; | |
448 | ||
b0cea477 LP |
449 | *fs = (ServiceFDStore) { |
450 | .fd = fd, | |
451 | .service = s, | |
452 | .do_poll = do_poll, | |
453 | .fdname = strdup(name ?: "stored"), | |
454 | }; | |
455 | ||
17dec0f7 | 456 | if (!fs->fdname) { |
457 | free(fs); | |
8dd4c05b | 458 | return -ENOMEM; |
17dec0f7 | 459 | } |
2339fc93 | 460 | |
cb5a46b8 KL |
461 | if (do_poll) { |
462 | r = sd_event_add_io(UNIT(s)->manager->event, &fs->event_source, fd, 0, on_fd_store_io, fs); | |
463 | if (r < 0 && r != -EPERM) { /* EPERM indicates fds that aren't pollable, which is OK */ | |
464 | free(fs->fdname); | |
465 | free(fs); | |
466 | return r; | |
467 | } else if (r >= 0) | |
468 | (void) sd_event_source_set_description(fs->event_source, "service-fd-store"); | |
469 | } | |
7dfbe2e3 | 470 | |
2339fc93 LP |
471 | LIST_PREPEND(fd_store, s->fd_store, fs); |
472 | s->n_fd_store++; | |
473 | ||
9021ff17 | 474 | return 1; /* fd newly stored */ |
2339fc93 LP |
475 | } |
476 | ||
cb5a46b8 | 477 | static int service_add_fd_store_set(Service *s, FDSet *fds, const char *name, bool do_poll) { |
2339fc93 LP |
478 | int r; |
479 | ||
480 | assert(s); | |
481 | ||
b0924635 | 482 | while (fdset_size(fds) > 0) { |
2339fc93 LP |
483 | _cleanup_close_ int fd = -1; |
484 | ||
485 | fd = fdset_steal_first(fds); | |
486 | if (fd < 0) | |
487 | break; | |
488 | ||
cb5a46b8 | 489 | r = service_add_fd_store(s, fd, name, do_poll); |
b0924635 ZJS |
490 | if (r == -EXFULL) |
491 | return log_unit_warning_errno(UNIT(s), r, | |
492 | "Cannot store more fds than FileDescriptorStoreMax=%u, closing remaining.", | |
493 | s->n_fd_store_max); | |
2339fc93 | 494 | if (r < 0) |
b0924635 | 495 | return log_unit_error_errno(UNIT(s), r, "Failed to add fd to store: %m"); |
9021ff17 | 496 | if (r > 0) |
c0f86d66 | 497 | log_unit_debug(UNIT(s), "Added fd %i (%s) to fd store.", fd, strna(name)); |
9021ff17 | 498 | fd = -1; |
2339fc93 LP |
499 | } |
500 | ||
2339fc93 LP |
501 | return 0; |
502 | } | |
503 | ||
e78ee06d | 504 | static void service_remove_fd_store(Service *s, const char *name) { |
e78ee06d LP |
505 | assert(s); |
506 | assert(name); | |
507 | ||
80a226b2 | 508 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
e78ee06d LP |
509 | if (!streq(fs->fdname, name)) |
510 | continue; | |
511 | ||
512 | log_unit_debug(UNIT(s), "Got explicit request to remove fd %i (%s), closing.", fs->fd, name); | |
513 | service_fd_store_unlink(fs); | |
514 | } | |
515 | } | |
516 | ||
ecea250d | 517 | static usec_t service_running_timeout(Service *s) { |
5918a933 AB |
518 | usec_t delta = 0; |
519 | ||
520 | assert(s); | |
521 | ||
522 | if (s->runtime_rand_extra_usec != 0) { | |
523 | delta = random_u64_range(s->runtime_rand_extra_usec); | |
524 | log_unit_debug(UNIT(s), "Adding delta of %s sec to timeout", FORMAT_TIMESPAN(delta, USEC_PER_SEC)); | |
525 | } | |
526 | ||
527 | return usec_add(usec_add(UNIT(s)->active_enter_timestamp.monotonic, | |
528 | s->runtime_max_usec), | |
529 | delta); | |
530 | } | |
531 | ||
718db961 LP |
532 | static int service_arm_timer(Service *s, usec_t usec) { |
533 | int r; | |
534 | ||
535 | assert(s); | |
536 | ||
718db961 | 537 | if (s->timer_event_source) { |
36c16a7c | 538 | r = sd_event_source_set_time(s->timer_event_source, usec); |
718db961 LP |
539 | if (r < 0) |
540 | return r; | |
541 | ||
542 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
543 | } | |
544 | ||
36c16a7c LP |
545 | if (usec == USEC_INFINITY) |
546 | return 0; | |
547 | ||
7dfbe2e3 | 548 | r = sd_event_add_time( |
6a0f1f6d LP |
549 | UNIT(s)->manager->event, |
550 | &s->timer_event_source, | |
551 | CLOCK_MONOTONIC, | |
36c16a7c | 552 | usec, 0, |
6a0f1f6d | 553 | service_dispatch_timer, s); |
7dfbe2e3 TG |
554 | if (r < 0) |
555 | return r; | |
556 | ||
557 | (void) sd_event_source_set_description(s->timer_event_source, "service-timer"); | |
558 | ||
559 | return 0; | |
44d8db9e LP |
560 | } |
561 | ||
243b1432 LP |
562 | static int service_verify(Service *s) { |
563 | assert(s); | |
e0cfed4c | 564 | assert(UNIT(s)->load_state == UNIT_LOADED); |
243b1432 | 565 | |
03677889 | 566 | for (ServiceExecCommand c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) |
8688a389 YW |
567 | LIST_FOREACH(command, command, s->exec_command[c]) { |
568 | if (!path_is_absolute(command->path) && !filename_is_valid(command->path)) | |
569 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENOEXEC), | |
570 | "Service %s= binary path \"%s\" is neither a valid executable name nor an absolute path. Refusing.", | |
571 | command->path, | |
572 | service_exec_command_to_string(c)); | |
29500cf8 HC |
573 | if (strv_isempty(command->argv)) |
574 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENOEXEC), | |
575 | "Service has an empty argv in %s=. Refusing.", | |
576 | service_exec_command_to_string(c)); | |
8688a389 | 577 | } |
29500cf8 | 578 | |
d85ff944 YW |
579 | if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP] && |
580 | UNIT(s)->success_action == EMERGENCY_ACTION_NONE) | |
3f00d379 ZJS |
581 | /* FailureAction= only makes sense if one of the start or stop commands is specified. |
582 | * SuccessAction= will be executed unconditionally if no commands are specified. Hence, | |
583 | * either a command or SuccessAction= are required. */ | |
584 | ||
d85ff944 | 585 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENOEXEC), "Service has no ExecStart=, ExecStop=, or SuccessAction=. Refusing."); |
243b1432 | 586 | |
d85ff944 YW |
587 | if (s->type != SERVICE_ONESHOT && !s->exec_command[SERVICE_EXEC_START]) |
588 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENOEXEC), "Service has no ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); | |
96fb8242 | 589 | |
d85ff944 YW |
590 | if (!s->remain_after_exit && !s->exec_command[SERVICE_EXEC_START] && UNIT(s)->success_action == EMERGENCY_ACTION_NONE) |
591 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENOEXEC), "Service has no ExecStart= and no SuccessAction= settings and does not have RemainAfterExit=yes set. Refusing."); | |
96fb8242 | 592 | |
d85ff944 YW |
593 | if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) |
594 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENOEXEC), "Service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); | |
6cf6bbc2 | 595 | |
d85ff944 YW |
596 | if (s->type == SERVICE_ONESHOT && |
597 | !IN_SET(s->restart, SERVICE_RESTART_NO, SERVICE_RESTART_ON_FAILURE, SERVICE_RESTART_ON_ABNORMAL, SERVICE_RESTART_ON_WATCHDOG, SERVICE_RESTART_ON_ABORT)) | |
598 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENOEXEC), "Service has Restart= set to either always or on-success, which isn't allowed for Type=oneshot services. Refusing."); | |
37520c1b | 599 | |
d85ff944 | 600 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) |
9e670fdc | 601 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENOEXEC), "Service has RestartForceExitStatus= set, which isn't allowed for Type=oneshot services. Refusing."); |
b0693d30 | 602 | |
596e4470 HC |
603 | if (s->type == SERVICE_ONESHOT && s->exit_type == SERVICE_EXIT_CGROUP) |
604 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENOEXEC), "Service has ExitType=cgroup set, which isn't allowed for Type=oneshot services. Refusing."); | |
605 | ||
d85ff944 YW |
606 | if (s->type == SERVICE_DBUS && !s->bus_name) |
607 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENOEXEC), "Service is of type D-Bus but no D-Bus service name has been specified. Refusing."); | |
4d0e5dbd | 608 | |
d85ff944 YW |
609 | if (s->exec_context.pam_name && !IN_SET(s->kill_context.kill_mode, KILL_CONTROL_GROUP, KILL_MIXED)) |
610 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENOEXEC), "Service has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing."); | |
05e343b7 | 611 | |
6b7e5923 PS |
612 | if (s->usb_function_descriptors && !s->usb_function_strings) |
613 | log_unit_warning(UNIT(s), "Service has USBFunctionDescriptors= setting, but no USBFunctionStrings=. Ignoring."); | |
614 | ||
615 | if (!s->usb_function_descriptors && s->usb_function_strings) | |
616 | log_unit_warning(UNIT(s), "Service has USBFunctionStrings= setting, but no USBFunctionDescriptors=. Ignoring."); | |
617 | ||
36c16a7c | 618 | if (s->runtime_max_usec != USEC_INFINITY && s->type == SERVICE_ONESHOT) |
226a08f2 | 619 | log_unit_warning(UNIT(s), "RuntimeMaxSec= has no effect in combination with Type=oneshot. Ignoring."); |
36c16a7c | 620 | |
5918a933 AB |
621 | if (s->runtime_max_usec == USEC_INFINITY && s->runtime_rand_extra_usec != 0) |
622 | log_unit_warning(UNIT(s), "Service has RuntimeRandomizedExtraSec= setting, but no RuntimeMaxSec=. Ignoring."); | |
623 | ||
86838bf0 LB |
624 | if (s->exit_type == SERVICE_EXIT_CGROUP && cg_unified() < CGROUP_UNIFIED_SYSTEMD) |
625 | log_unit_warning(UNIT(s), "Service has ExitType=cgroup set, but we are running with legacy cgroups v1, which might not work correctly. Continuing."); | |
626 | ||
243b1432 LP |
627 | return 0; |
628 | } | |
629 | ||
a40eb732 LP |
630 | static int service_add_default_dependencies(Service *s) { |
631 | int r; | |
632 | ||
633 | assert(s); | |
634 | ||
45f06b34 LP |
635 | if (!UNIT(s)->default_dependencies) |
636 | return 0; | |
637 | ||
a40eb732 LP |
638 | /* Add a number of automatic dependencies useful for the |
639 | * majority of services. */ | |
640 | ||
463d0d15 | 641 | if (MANAGER_IS_SYSTEM(UNIT(s)->manager)) { |
cb4c247d LP |
642 | /* First, pull in the really early boot stuff, and |
643 | * require it, so that we fail if we can't acquire | |
644 | * it. */ | |
645 | ||
5a724170 | 646 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
cb4c247d LP |
647 | if (r < 0) |
648 | return r; | |
649 | } else { | |
650 | ||
651 | /* In the --user instance there's no sysinit.target, | |
652 | * in that case require basic.target instead. */ | |
653 | ||
35d8c19a | 654 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
cb4c247d LP |
655 | if (r < 0) |
656 | return r; | |
657 | } | |
658 | ||
659 | /* Second, if the rest of the base system is in the same | |
660 | * transaction, order us after it, but do not pull it in or | |
661 | * even require it. */ | |
35d8c19a | 662 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
fccd44ec KS |
663 | if (r < 0) |
664 | return r; | |
a40eb732 | 665 | |
cb4c247d | 666 | /* Third, add us in for normal shutdown. */ |
5a724170 | 667 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
a40eb732 LP |
668 | } |
669 | ||
3b7f79dc | 670 | static void service_fix_stdio(Service *s) { |
4dfc092a LP |
671 | assert(s); |
672 | ||
3b7f79dc LP |
673 | /* Note that EXEC_INPUT_NULL and EXEC_OUTPUT_INHERIT play a special role here: they are both the |
674 | * default value that is subject to automatic overriding triggered by other settings and an explicit | |
162392b7 | 675 | * choice the user can make. We don't distinguish between these cases currently. */ |
3b7f79dc LP |
676 | |
677 | if (s->exec_context.std_input == EXEC_INPUT_NULL && | |
678 | s->exec_context.stdin_data_size > 0) | |
679 | s->exec_context.std_input = EXEC_INPUT_DATA; | |
680 | ||
681 | if (IN_SET(s->exec_context.std_input, | |
682 | EXEC_INPUT_TTY, | |
683 | EXEC_INPUT_TTY_FORCE, | |
684 | EXEC_INPUT_TTY_FAIL, | |
685 | EXEC_INPUT_SOCKET, | |
686 | EXEC_INPUT_NAMED_FD)) | |
687 | return; | |
688 | ||
689 | /* We assume these listed inputs refer to bidirectional streams, and hence duplicating them from | |
690 | * stdin to stdout/stderr makes sense and hence leaving EXEC_OUTPUT_INHERIT in place makes sense, | |
691 | * too. Outputs such as regular files or sealed data memfds otoh don't really make sense to be | |
692 | * duplicated for both input and output at the same time (since they then would cause a feedback | |
693 | * loop), hence override EXEC_OUTPUT_INHERIT with the default stderr/stdout setting. */ | |
4dfc092a LP |
694 | |
695 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
3b7f79dc | 696 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT) |
1124fe6f | 697 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a | 698 | |
3b7f79dc | 699 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT) |
1124fe6f | 700 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
701 | } |
702 | ||
45f06b34 LP |
703 | static int service_setup_bus_name(Service *s) { |
704 | int r; | |
705 | ||
706 | assert(s); | |
707 | ||
0f97b7c3 | 708 | /* If s->bus_name is not set, then the unit will be refused by service_verify() later. */ |
1e8b312e | 709 | if (!s->bus_name) |
45f06b34 LP |
710 | return 0; |
711 | ||
1e8b312e LP |
712 | if (s->type == SERVICE_DBUS) { |
713 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, true, UNIT_DEPENDENCY_FILE); | |
714 | if (r < 0) | |
715 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); | |
45f06b34 | 716 | |
1e8b312e LP |
717 | /* We always want to be ordered against dbus.socket if both are in the transaction. */ |
718 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_DBUS_SOCKET, true, UNIT_DEPENDENCY_FILE); | |
719 | if (r < 0) | |
720 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); | |
721 | } | |
45f06b34 LP |
722 | |
723 | r = unit_watch_bus_name(UNIT(s), s->bus_name); | |
724 | if (r == -EEXIST) | |
725 | return log_unit_error_errno(UNIT(s), r, "Two services allocated for the same bus name %s, refusing operation.", s->bus_name); | |
726 | if (r < 0) | |
727 | return log_unit_error_errno(UNIT(s), r, "Cannot watch bus name %s: %m", s->bus_name); | |
728 | ||
729 | return 0; | |
730 | } | |
731 | ||
8545f7ce LP |
732 | static int service_add_extras(Service *s) { |
733 | int r; | |
734 | ||
735 | assert(s); | |
736 | ||
737 | if (s->type == _SERVICE_TYPE_INVALID) { | |
738 | /* Figure out a type automatically */ | |
739 | if (s->bus_name) | |
740 | s->type = SERVICE_DBUS; | |
741 | else if (s->exec_command[SERVICE_EXEC_START]) | |
742 | s->type = SERVICE_SIMPLE; | |
743 | else | |
744 | s->type = SERVICE_ONESHOT; | |
745 | } | |
746 | ||
747 | /* Oneshot services have disabled start timeout by default */ | |
748 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
36c16a7c | 749 | s->timeout_start_usec = USEC_INFINITY; |
8545f7ce | 750 | |
3b7f79dc | 751 | service_fix_stdio(s); |
8545f7ce LP |
752 | |
753 | r = unit_patch_contexts(UNIT(s)); | |
754 | if (r < 0) | |
755 | return r; | |
756 | ||
757 | r = unit_add_exec_dependencies(UNIT(s), &s->exec_context); | |
758 | if (r < 0) | |
759 | return r; | |
760 | ||
d79200e2 | 761 | r = unit_set_default_slice(UNIT(s)); |
8545f7ce LP |
762 | if (r < 0) |
763 | return r; | |
764 | ||
4330dc03 AJ |
765 | /* If the service needs the notify socket, let's enable it automatically. */ |
766 | if (s->notify_access == NOTIFY_NONE && | |
767 | (s->type == SERVICE_NOTIFY || s->watchdog_usec > 0 || s->n_fd_store_max > 0)) | |
8545f7ce LP |
768 | s->notify_access = NOTIFY_MAIN; |
769 | ||
afcfaa69 LP |
770 | /* If no OOM policy was explicitly set, then default to the configure default OOM policy. Except when |
771 | * delegation is on, in that case it we assume the payload knows better what to do and can process | |
5238e957 | 772 | * things in a more focused way. */ |
afcfaa69 LP |
773 | if (s->oom_policy < 0) |
774 | s->oom_policy = s->cgroup_context.delegate ? OOM_CONTINUE : UNIT(s)->manager->default_oom_policy; | |
775 | ||
776 | /* Let the kernel do the killing if that's requested. */ | |
777 | s->cgroup_context.memory_oom_group = s->oom_policy == OOM_KILL; | |
778 | ||
45f06b34 LP |
779 | r = service_add_default_dependencies(s); |
780 | if (r < 0) | |
781 | return r; | |
8545f7ce | 782 | |
45f06b34 LP |
783 | r = service_setup_bus_name(s); |
784 | if (r < 0) | |
785 | return r; | |
8545f7ce LP |
786 | |
787 | return 0; | |
788 | } | |
789 | ||
e537352b | 790 | static int service_load(Unit *u) { |
e537352b | 791 | Service *s = SERVICE(u); |
8bb2d17d | 792 | int r; |
e537352b | 793 | |
e0cfed4c | 794 | r = unit_load_fragment_and_dropin(u, true); |
c2756a68 | 795 | if (r < 0) |
5cb5a6ff LP |
796 | return r; |
797 | ||
e0cfed4c ZJS |
798 | if (u->load_state != UNIT_LOADED) |
799 | return 0; | |
034c6ed7 | 800 | |
23a177ef | 801 | /* This is a new unit? Then let's add in some extras */ |
e0cfed4c ZJS |
802 | r = service_add_extras(s); |
803 | if (r < 0) | |
804 | return r; | |
8e274523 | 805 | |
243b1432 | 806 | return service_verify(s); |
034c6ed7 LP |
807 | } |
808 | ||
87f0e418 | 809 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 810 | ServiceExecCommand c; |
87f0e418 | 811 | Service *s = SERVICE(u); |
47be870b | 812 | const char *prefix2; |
5cb5a6ff LP |
813 | |
814 | assert(s); | |
815 | ||
4c940960 | 816 | prefix = strempty(prefix); |
63c372cb | 817 | prefix2 = strjoina(prefix, "\t"); |
44d8db9e | 818 | |
5cb5a6ff | 819 | fprintf(f, |
81a2b7ce | 820 | "%sService State: %s\n" |
f42806df LP |
821 | "%sResult: %s\n" |
822 | "%sReload Result: %s\n" | |
4c2f5842 | 823 | "%sClean Result: %s\n" |
81a2b7ce | 824 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 825 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 826 | "%sRemainAfterExit: %s\n" |
3185a36b | 827 | "%sGuessMainPID: %s\n" |
c952c6ec | 828 | "%sType: %s\n" |
2cf3143a | 829 | "%sRestart: %s\n" |
308d72dc | 830 | "%sNotifyAccess: %s\n" |
afcfaa69 LP |
831 | "%sNotifyState: %s\n" |
832 | "%sOOMPolicy: %s\n", | |
81a2b7ce | 833 | prefix, service_state_to_string(s->state), |
f42806df LP |
834 | prefix, service_result_to_string(s->result), |
835 | prefix, service_result_to_string(s->reload_result), | |
4c2f5842 | 836 | prefix, service_result_to_string(s->clean_result), |
81a2b7ce | 837 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 838 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 839 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 840 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 841 | prefix, service_type_to_string(s->type), |
2cf3143a | 842 | prefix, service_restart_to_string(s->restart), |
308d72dc | 843 | prefix, notify_access_to_string(s->notify_access), |
afcfaa69 LP |
844 | prefix, notify_state_to_string(s->notify_state), |
845 | prefix, oom_policy_to_string(s->oom_policy)); | |
5cb5a6ff | 846 | |
70123e68 LP |
847 | if (s->control_pid > 0) |
848 | fprintf(f, | |
ccd06097 ZJS |
849 | "%sControl PID: "PID_FMT"\n", |
850 | prefix, s->control_pid); | |
70123e68 LP |
851 | |
852 | if (s->main_pid > 0) | |
853 | fprintf(f, | |
ccd06097 | 854 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
855 | "%sMain PID Known: %s\n" |
856 | "%sMain PID Alien: %s\n", | |
ccd06097 | 857 | prefix, s->main_pid, |
6dfa5494 LP |
858 | prefix, yes_no(s->main_pid_known), |
859 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 860 | |
034c6ed7 LP |
861 | if (s->pid_file) |
862 | fprintf(f, | |
863 | "%sPIDFile: %s\n", | |
864 | prefix, s->pid_file); | |
865 | ||
05e343b7 LP |
866 | if (s->bus_name) |
867 | fprintf(f, | |
868 | "%sBusName: %s\n" | |
869 | "%sBus Name Good: %s\n", | |
870 | prefix, s->bus_name, | |
871 | prefix, yes_no(s->bus_name_good)); | |
872 | ||
9dfb64f8 ZJS |
873 | if (UNIT_ISSET(s->accept_socket)) |
874 | fprintf(f, | |
875 | "%sAccept Socket: %s\n", | |
876 | prefix, UNIT_DEREF(s->accept_socket)->id); | |
877 | ||
c9d41699 YW |
878 | fprintf(f, |
879 | "%sRestartSec: %s\n" | |
880 | "%sTimeoutStartSec: %s\n" | |
bf760801 JK |
881 | "%sTimeoutStopSec: %s\n" |
882 | "%sTimeoutStartFailureMode: %s\n" | |
883 | "%sTimeoutStopFailureMode: %s\n", | |
5291f26d ZJS |
884 | prefix, FORMAT_TIMESPAN(s->restart_usec, USEC_PER_SEC), |
885 | prefix, FORMAT_TIMESPAN(s->timeout_start_usec, USEC_PER_SEC), | |
886 | prefix, FORMAT_TIMESPAN(s->timeout_stop_usec, USEC_PER_SEC), | |
bf760801 JK |
887 | prefix, service_timeout_failure_mode_to_string(s->timeout_start_failure_mode), |
888 | prefix, service_timeout_failure_mode_to_string(s->timeout_stop_failure_mode)); | |
dcab85be YW |
889 | |
890 | if (s->timeout_abort_set) | |
891 | fprintf(f, | |
892 | "%sTimeoutAbortSec: %s\n", | |
5291f26d | 893 | prefix, FORMAT_TIMESPAN(s->timeout_abort_usec, USEC_PER_SEC)); |
dcab85be YW |
894 | |
895 | fprintf(f, | |
896 | "%sRuntimeMaxSec: %s\n" | |
5918a933 | 897 | "%sRuntimeRandomizedExtraSec: %s\n" |
dcab85be | 898 | "%sWatchdogSec: %s\n", |
5291f26d | 899 | prefix, FORMAT_TIMESPAN(s->runtime_max_usec, USEC_PER_SEC), |
5918a933 | 900 | prefix, FORMAT_TIMESPAN(s->runtime_rand_extra_usec, USEC_PER_SEC), |
5291f26d | 901 | prefix, FORMAT_TIMESPAN(s->watchdog_usec, USEC_PER_SEC)); |
c9d41699 | 902 | |
4819ff03 | 903 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
904 | exec_context_dump(&s->exec_context, f, prefix); |
905 | ||
e537352b | 906 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 907 | |
44d8db9e LP |
908 | if (!s->exec_command[c]) |
909 | continue; | |
910 | ||
40d50879 | 911 | fprintf(f, "%s-> %s:\n", |
94f04347 | 912 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
913 | |
914 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 915 | } |
44d8db9e | 916 | |
8c47c732 LP |
917 | if (s->status_text) |
918 | fprintf(f, "%sStatus Text: %s\n", | |
919 | prefix, s->status_text); | |
a354329f | 920 | |
ece174c5 | 921 | if (s->n_fd_store_max > 0) |
a354329f LP |
922 | fprintf(f, |
923 | "%sFile Descriptor Store Max: %u\n" | |
da6053d0 | 924 | "%sFile Descriptor Store Current: %zu\n", |
a354329f LP |
925 | prefix, s->n_fd_store_max, |
926 | prefix, s->n_fd_store); | |
18f573aa | 927 | |
bc0623df | 928 | cgroup_context_dump(UNIT(s), f, prefix); |
5cb5a6ff LP |
929 | } |
930 | ||
db256aab LP |
931 | static int service_is_suitable_main_pid(Service *s, pid_t pid, int prio) { |
932 | Unit *owner; | |
933 | ||
934 | assert(s); | |
935 | assert(pid_is_valid(pid)); | |
936 | ||
937 | /* Checks whether the specified PID is suitable as main PID for this service. returns negative if not, 0 if the | |
938 | * PID is questionnable but should be accepted if the source of configuration is trusted. > 0 if the PID is | |
939 | * good */ | |
940 | ||
d85ff944 YW |
941 | if (pid == getpid_cached() || pid == 1) |
942 | return log_unit_full_errno(UNIT(s), prio, SYNTHETIC_ERRNO(EPERM), "New main PID "PID_FMT" is the manager, refusing.", pid); | |
db256aab | 943 | |
d85ff944 YW |
944 | if (pid == s->control_pid) |
945 | return log_unit_full_errno(UNIT(s), prio, SYNTHETIC_ERRNO(EPERM), "New main PID "PID_FMT" is the control process, refusing.", pid); | |
db256aab | 946 | |
d85ff944 YW |
947 | if (!pid_is_alive(pid)) |
948 | return log_unit_full_errno(UNIT(s), prio, SYNTHETIC_ERRNO(ESRCH), "New main PID "PID_FMT" does not exist or is a zombie.", pid); | |
db256aab LP |
949 | |
950 | owner = manager_get_unit_by_pid(UNIT(s)->manager, pid); | |
951 | if (owner == UNIT(s)) { | |
952 | log_unit_debug(UNIT(s), "New main PID "PID_FMT" belongs to service, we are happy.", pid); | |
953 | return 1; /* Yay, it's definitely a good PID */ | |
954 | } | |
955 | ||
956 | return 0; /* Hmm it's a suspicious PID, let's accept it if configuration source is trusted */ | |
957 | } | |
958 | ||
c5419d42 | 959 | static int service_load_pid_file(Service *s, bool may_warn) { |
73969ab6 | 960 | bool questionable_pid_file = false; |
7fd1b19b | 961 | _cleanup_free_ char *k = NULL; |
db256aab LP |
962 | _cleanup_close_ int fd = -1; |
963 | int r, prio; | |
5925dd3c | 964 | pid_t pid; |
034c6ed7 LP |
965 | |
966 | assert(s); | |
967 | ||
034c6ed7 | 968 | if (!s->pid_file) |
13230d5d | 969 | return -ENOENT; |
034c6ed7 | 970 | |
db256aab LP |
971 | prio = may_warn ? LOG_INFO : LOG_DEBUG; |
972 | ||
a5648b80 ZJS |
973 | r = chase_symlinks(s->pid_file, NULL, CHASE_SAFE, NULL, &fd); |
974 | if (r == -ENOLINK) { | |
8ed6f81b YW |
975 | log_unit_debug_errno(UNIT(s), r, |
976 | "Potentially unsafe symlink chain, will now retry with relaxed checks: %s", s->pid_file); | |
73969ab6 LP |
977 | |
978 | questionable_pid_file = true; | |
979 | ||
a5648b80 | 980 | r = chase_symlinks(s->pid_file, NULL, 0, NULL, &fd); |
73969ab6 | 981 | } |
a5648b80 | 982 | if (r < 0) |
8ed6f81b YW |
983 | return log_unit_full_errno(UNIT(s), prio, fd, |
984 | "Can't open PID file %s (yet?) after %s: %m", s->pid_file, service_state_to_string(s->state)); | |
db256aab | 985 | |
a5648b80 ZJS |
986 | /* Let's read the PID file now that we chased it down. But we need to convert the O_PATH fd |
987 | * chase_symlinks() returned us into a proper fd first. */ | |
ddb6eeaf | 988 | r = read_one_line_file(FORMAT_PROC_FD_PATH(fd), &k); |
db256aab | 989 | if (r < 0) |
a5648b80 ZJS |
990 | return log_unit_error_errno(UNIT(s), r, |
991 | "Can't convert PID files %s O_PATH file descriptor to proper file descriptor: %m", | |
992 | s->pid_file); | |
034c6ed7 | 993 | |
5925dd3c | 994 | r = parse_pid(k, &pid); |
db256aab | 995 | if (r < 0) |
8ed6f81b | 996 | return log_unit_full_errno(UNIT(s), prio, r, "Failed to parse PID from file %s: %m", s->pid_file); |
db256aab LP |
997 | |
998 | if (s->main_pid_known && pid == s->main_pid) | |
999 | return 0; | |
1000 | ||
1001 | r = service_is_suitable_main_pid(s, pid, prio); | |
1002 | if (r < 0) | |
5925dd3c | 1003 | return r; |
db256aab LP |
1004 | if (r == 0) { |
1005 | struct stat st; | |
406eaf93 | 1006 | |
d85ff944 YW |
1007 | if (questionable_pid_file) |
1008 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(EPERM), | |
1009 | "Refusing to accept PID outside of service control group, acquired through unsafe symlink chain: %s", s->pid_file); | |
73969ab6 | 1010 | |
db256aab LP |
1011 | /* Hmm, it's not clear if the new main PID is safe. Let's allow this if the PID file is owned by root */ |
1012 | ||
1013 | if (fstat(fd, &st) < 0) | |
1014 | return log_unit_error_errno(UNIT(s), errno, "Failed to fstat() PID file O_PATH fd: %m"); | |
1015 | ||
d85ff944 YW |
1016 | if (st.st_uid != 0) |
1017 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(EPERM), | |
1018 | "New main PID "PID_FMT" does not belong to service, and PID file is not owned by root. Refusing.", pid); | |
db256aab LP |
1019 | |
1020 | log_unit_debug(UNIT(s), "New main PID "PID_FMT" does not belong to service, but we'll accept it since PID file is owned by root.", pid); | |
e10c9985 YS |
1021 | } |
1022 | ||
db01f8b3 | 1023 | if (s->main_pid_known) { |
f2341e0a | 1024 | log_unit_debug(UNIT(s), "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
8bb2d17d | 1025 | |
db01f8b3 MS |
1026 | service_unwatch_main_pid(s); |
1027 | s->main_pid_known = false; | |
3a111838 | 1028 | } else |
f2341e0a | 1029 | log_unit_debug(UNIT(s), "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 1030 | |
117dcc57 ZJS |
1031 | r = service_set_main_pid(s, pid); |
1032 | if (r < 0) | |
16f6025e LP |
1033 | return r; |
1034 | ||
f75f613d | 1035 | r = unit_watch_pid(UNIT(s), pid, false); |
e8b509d3 LP |
1036 | if (r < 0) /* FIXME: we need to do something here */ |
1037 | return log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", pid); | |
034c6ed7 | 1038 | |
db256aab | 1039 | return 1; |
034c6ed7 LP |
1040 | } |
1041 | ||
783e05d6 | 1042 | static void service_search_main_pid(Service *s) { |
efdb0237 | 1043 | pid_t pid = 0; |
4fbf50b3 LP |
1044 | int r; |
1045 | ||
1046 | assert(s); | |
1047 | ||
2aed63f4 | 1048 | /* If we know it anyway, don't ever fall back to unreliable |
3185a36b | 1049 | * heuristics */ |
4fbf50b3 | 1050 | if (s->main_pid_known) |
783e05d6 | 1051 | return; |
4fbf50b3 | 1052 | |
3185a36b | 1053 | if (!s->guess_main_pid) |
783e05d6 | 1054 | return; |
3185a36b | 1055 | |
4fbf50b3 LP |
1056 | assert(s->main_pid <= 0); |
1057 | ||
783e05d6 ZJS |
1058 | if (unit_search_main_pid(UNIT(s), &pid) < 0) |
1059 | return; | |
4fbf50b3 | 1060 | |
f2341e0a | 1061 | log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid); |
783e05d6 ZJS |
1062 | if (service_set_main_pid(s, pid) < 0) |
1063 | return; | |
4fbf50b3 | 1064 | |
f75f613d | 1065 | r = unit_watch_pid(UNIT(s), pid, false); |
783e05d6 | 1066 | if (r < 0) |
4fbf50b3 | 1067 | /* FIXME: we need to do something here */ |
f2341e0a | 1068 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", pid); |
4fbf50b3 LP |
1069 | } |
1070 | ||
034c6ed7 LP |
1071 | static void service_set_state(Service *s, ServiceState state) { |
1072 | ServiceState old_state; | |
e056b01d | 1073 | const UnitActiveState *table; |
842129f5 | 1074 | |
5cb5a6ff LP |
1075 | assert(s); |
1076 | ||
6fcbec6f LP |
1077 | if (s->state != state) |
1078 | bus_unit_send_pending_change_signal(UNIT(s), false); | |
1079 | ||
e056b01d LP |
1080 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
1081 | ||
034c6ed7 | 1082 | old_state = s->state; |
5cb5a6ff | 1083 | s->state = state; |
034c6ed7 | 1084 | |
3a111838 MS |
1085 | service_unwatch_pid_file(s); |
1086 | ||
842129f5 | 1087 | if (!IN_SET(state, |
31cd5f63 | 1088 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
36c16a7c | 1089 | SERVICE_RUNNING, |
842129f5 | 1090 | SERVICE_RELOAD, |
c87700a1 | 1091 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf760801 | 1092 | SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
4c2f5842 LP |
1093 | SERVICE_AUTO_RESTART, |
1094 | SERVICE_CLEANING)) | |
5dcadb4c | 1095 | s->timer_event_source = sd_event_source_disable_unref(s->timer_event_source); |
034c6ed7 | 1096 | |
842129f5 LP |
1097 | if (!IN_SET(state, |
1098 | SERVICE_START, SERVICE_START_POST, | |
1099 | SERVICE_RUNNING, SERVICE_RELOAD, | |
c87700a1 | 1100 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf760801 | 1101 | SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 1102 | service_unwatch_main_pid(s); |
867b3b7d LP |
1103 | s->main_command = NULL; |
1104 | } | |
034c6ed7 | 1105 | |
842129f5 | 1106 | if (!IN_SET(state, |
31cd5f63 | 1107 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
842129f5 | 1108 | SERVICE_RELOAD, |
c87700a1 | 1109 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf760801 | 1110 | SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
4c2f5842 | 1111 | SERVICE_CLEANING)) { |
5e94833f | 1112 | service_unwatch_control_pid(s); |
034c6ed7 | 1113 | s->control_command = NULL; |
a16e1123 | 1114 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 1115 | } |
034c6ed7 | 1116 | |
50be4f4a | 1117 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) { |
a911bb9a | 1118 | unit_unwatch_all_pids(UNIT(s)); |
50be4f4a LP |
1119 | unit_dequeue_rewatch_pids(UNIT(s)); |
1120 | } | |
a911bb9a | 1121 | |
842129f5 | 1122 | if (!IN_SET(state, |
31cd5f63 | 1123 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
842129f5 | 1124 | SERVICE_RUNNING, SERVICE_RELOAD, |
c87700a1 | 1125 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf760801 | 1126 | SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && |
5cc3985e | 1127 | !(state == SERVICE_DEAD && UNIT(s)->job)) |
4f2d528d LP |
1128 | service_close_socket_fd(s); |
1129 | ||
5686391b | 1130 | if (state != SERVICE_START) |
5dcadb4c | 1131 | s->exec_fd_event_source = sd_event_source_disable_unref(s->exec_fd_event_source); |
5686391b | 1132 | |
7596e9e1 | 1133 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
1134 | service_stop_watchdog(s); |
1135 | ||
f6023656 LP |
1136 | /* For the inactive states unit_notify() will trim the cgroup, |
1137 | * but for exit we have to do that ourselves... */ | |
2c289ea8 | 1138 | if (state == SERVICE_EXITED && !MANAGER_IS_RELOADING(UNIT(s)->manager)) |
efdb0237 | 1139 | unit_prune_cgroup(UNIT(s)); |
f6023656 | 1140 | |
e537352b | 1141 | if (old_state != state) |
f2341e0a | 1142 | log_unit_debug(UNIT(s), "Changed %s -> %s", service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 1143 | |
2ad2e41a LP |
1144 | unit_notify(UNIT(s), table[old_state], table[state], |
1145 | (s->reload_result == SERVICE_SUCCESS ? 0 : UNIT_NOTIFY_RELOAD_FAILURE) | | |
42e6f549 | 1146 | (s->will_auto_restart ? UNIT_NOTIFY_WILL_AUTO_RESTART : 0)); |
034c6ed7 LP |
1147 | } |
1148 | ||
36c16a7c LP |
1149 | static usec_t service_coldplug_timeout(Service *s) { |
1150 | assert(s); | |
1151 | ||
1152 | switch (s->deserialized_state) { | |
1153 | ||
31cd5f63 | 1154 | case SERVICE_CONDITION: |
36c16a7c LP |
1155 | case SERVICE_START_PRE: |
1156 | case SERVICE_START: | |
1157 | case SERVICE_START_POST: | |
1158 | case SERVICE_RELOAD: | |
1159 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_start_usec); | |
1160 | ||
1161 | case SERVICE_RUNNING: | |
5918a933 | 1162 | return service_running_timeout(s); |
36c16a7c LP |
1163 | |
1164 | case SERVICE_STOP: | |
36c16a7c LP |
1165 | case SERVICE_STOP_SIGTERM: |
1166 | case SERVICE_STOP_SIGKILL: | |
1167 | case SERVICE_STOP_POST: | |
1168 | case SERVICE_FINAL_SIGTERM: | |
1169 | case SERVICE_FINAL_SIGKILL: | |
1170 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_stop_usec); | |
1171 | ||
dc653bf4 | 1172 | case SERVICE_STOP_WATCHDOG: |
bf760801 | 1173 | case SERVICE_FINAL_WATCHDOG: |
dc653bf4 JK |
1174 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, service_timeout_abort_usec(s)); |
1175 | ||
36c16a7c LP |
1176 | case SERVICE_AUTO_RESTART: |
1177 | return usec_add(UNIT(s)->inactive_enter_timestamp.monotonic, s->restart_usec); | |
1178 | ||
4c2f5842 | 1179 | case SERVICE_CLEANING: |
12213aed | 1180 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->exec_context.timeout_clean_usec); |
4c2f5842 | 1181 | |
36c16a7c LP |
1182 | default: |
1183 | return USEC_INFINITY; | |
1184 | } | |
1185 | } | |
1186 | ||
be847e82 | 1187 | static int service_coldplug(Unit *u) { |
a16e1123 LP |
1188 | Service *s = SERVICE(u); |
1189 | int r; | |
1190 | ||
1191 | assert(s); | |
1192 | assert(s->state == SERVICE_DEAD); | |
1193 | ||
930d2838 LP |
1194 | if (s->deserialized_state == s->state) |
1195 | return 0; | |
6c12b52e | 1196 | |
36c16a7c LP |
1197 | r = service_arm_timer(s, service_coldplug_timeout(s)); |
1198 | if (r < 0) | |
1199 | return r; | |
a911bb9a | 1200 | |
930d2838 LP |
1201 | if (s->main_pid > 0 && |
1202 | pid_is_unwaited(s->main_pid) && | |
9acac212 | 1203 | (IN_SET(s->deserialized_state, |
930d2838 LP |
1204 | SERVICE_START, SERVICE_START_POST, |
1205 | SERVICE_RUNNING, SERVICE_RELOAD, | |
c87700a1 | 1206 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf760801 | 1207 | SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { |
f75f613d | 1208 | r = unit_watch_pid(UNIT(s), s->main_pid, false); |
930d2838 LP |
1209 | if (r < 0) |
1210 | return r; | |
1211 | } | |
bb242b7b | 1212 | |
930d2838 LP |
1213 | if (s->control_pid > 0 && |
1214 | pid_is_unwaited(s->control_pid) && | |
1215 | IN_SET(s->deserialized_state, | |
31cd5f63 | 1216 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
930d2838 | 1217 | SERVICE_RELOAD, |
c87700a1 | 1218 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf760801 | 1219 | SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
4c2f5842 | 1220 | SERVICE_CLEANING)) { |
f75f613d | 1221 | r = unit_watch_pid(UNIT(s), s->control_pid, false); |
930d2838 LP |
1222 | if (r < 0) |
1223 | return r; | |
a16e1123 | 1224 | } |
92c1622e | 1225 | |
4c2f5842 | 1226 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART, SERVICE_CLEANING)) { |
50be4f4a | 1227 | (void) unit_enqueue_rewatch_pids(u); |
29206d46 | 1228 | (void) unit_setup_dynamic_creds(u); |
e8a565cb YW |
1229 | (void) unit_setup_exec_runtime(u); |
1230 | } | |
29206d46 | 1231 | |
50be4f4a LP |
1232 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
1233 | service_start_watchdog(s); | |
1234 | ||
3ebcd323 ZJS |
1235 | if (UNIT_ISSET(s->accept_socket)) { |
1236 | Socket* socket = SOCKET(UNIT_DEREF(s->accept_socket)); | |
1237 | ||
1238 | if (socket->max_connections_per_source > 0) { | |
1239 | SocketPeer *peer; | |
1240 | ||
1241 | /* Make a best-effort attempt at bumping the connection count */ | |
1242 | if (socket_acquire_peer(socket, s->socket_fd, &peer) > 0) { | |
3fabebf4 LP |
1243 | socket_peer_unref(s->socket_peer); |
1244 | s->socket_peer = peer; | |
3ebcd323 ZJS |
1245 | } |
1246 | } | |
1247 | } | |
1248 | ||
930d2838 | 1249 | service_set_state(s, s->deserialized_state); |
a16e1123 LP |
1250 | return 0; |
1251 | } | |
1252 | ||
25b583d7 LP |
1253 | static int service_collect_fds( |
1254 | Service *s, | |
1255 | int **fds, | |
1256 | char ***fd_names, | |
1257 | size_t *n_socket_fds, | |
1258 | size_t *n_storage_fds) { | |
4c47affc | 1259 | |
8dd4c05b | 1260 | _cleanup_strv_free_ char **rfd_names = NULL; |
a354329f | 1261 | _cleanup_free_ int *rfds = NULL; |
25b583d7 | 1262 | size_t rn_socket_fds = 0, rn_storage_fds = 0; |
4c47affc | 1263 | int r; |
44d8db9e LP |
1264 | |
1265 | assert(s); | |
1266 | assert(fds); | |
8dd4c05b | 1267 | assert(fd_names); |
9b141911 | 1268 | assert(n_socket_fds); |
25b583d7 | 1269 | assert(n_storage_fds); |
44d8db9e | 1270 | |
8dd4c05b | 1271 | if (s->socket_fd >= 0) { |
6cf6bbc2 | 1272 | |
8dd4c05b | 1273 | /* Pass the per-connection socket */ |
57020a3a | 1274 | |
8dd4c05b LP |
1275 | rfds = new(int, 1); |
1276 | if (!rfds) | |
1277 | return -ENOMEM; | |
1278 | rfds[0] = s->socket_fd; | |
57020a3a | 1279 | |
bea1a013 | 1280 | rfd_names = strv_new("connection"); |
8dd4c05b LP |
1281 | if (!rfd_names) |
1282 | return -ENOMEM; | |
44d8db9e | 1283 | |
4c47affc | 1284 | rn_socket_fds = 1; |
8dd4c05b | 1285 | } else { |
8dd4c05b | 1286 | Unit *u; |
44d8db9e | 1287 | |
8dd4c05b | 1288 | /* Pass all our configured sockets for singleton services */ |
44d8db9e | 1289 | |
15ed3c3a | 1290 | UNIT_FOREACH_DEPENDENCY(u, UNIT(s), UNIT_ATOM_TRIGGERED_BY) { |
8dd4c05b LP |
1291 | _cleanup_free_ int *cfds = NULL; |
1292 | Socket *sock; | |
1293 | int cn_fds; | |
44d8db9e | 1294 | |
8dd4c05b LP |
1295 | if (u->type != UNIT_SOCKET) |
1296 | continue; | |
44d8db9e | 1297 | |
8dd4c05b | 1298 | sock = SOCKET(u); |
a354329f | 1299 | |
8dd4c05b LP |
1300 | cn_fds = socket_collect_fds(sock, &cfds); |
1301 | if (cn_fds < 0) | |
1302 | return cn_fds; | |
44d8db9e | 1303 | |
8dd4c05b LP |
1304 | if (cn_fds <= 0) |
1305 | continue; | |
79c7626d | 1306 | |
8dd4c05b | 1307 | if (!rfds) { |
1cc6c93a | 1308 | rfds = TAKE_PTR(cfds); |
4c47affc | 1309 | rn_socket_fds = cn_fds; |
8dd4c05b LP |
1310 | } else { |
1311 | int *t; | |
1312 | ||
62d74c78 | 1313 | t = reallocarray(rfds, rn_socket_fds + cn_fds, sizeof(int)); |
8dd4c05b LP |
1314 | if (!t) |
1315 | return -ENOMEM; | |
1316 | ||
4c47affc | 1317 | memcpy(t + rn_socket_fds, cfds, cn_fds * sizeof(int)); |
8dd4c05b LP |
1318 | |
1319 | rfds = t; | |
4c47affc | 1320 | rn_socket_fds += cn_fds; |
8dd4c05b LP |
1321 | } |
1322 | ||
1323 | r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds); | |
1324 | if (r < 0) | |
1325 | return r; | |
44d8db9e LP |
1326 | } |
1327 | } | |
1328 | ||
a354329f | 1329 | if (s->n_fd_store > 0) { |
25b583d7 | 1330 | size_t n_fds; |
8dd4c05b | 1331 | char **nl; |
a354329f LP |
1332 | int *t; |
1333 | ||
62d74c78 | 1334 | t = reallocarray(rfds, rn_socket_fds + s->n_fd_store, sizeof(int)); |
a354329f LP |
1335 | if (!t) |
1336 | return -ENOMEM; | |
1337 | ||
1338 | rfds = t; | |
8dd4c05b | 1339 | |
62d74c78 | 1340 | nl = reallocarray(rfd_names, rn_socket_fds + s->n_fd_store + 1, sizeof(char *)); |
8dd4c05b LP |
1341 | if (!nl) |
1342 | return -ENOMEM; | |
1343 | ||
1344 | rfd_names = nl; | |
4c47affc | 1345 | n_fds = rn_socket_fds; |
8dd4c05b LP |
1346 | |
1347 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
4c47affc FB |
1348 | rfds[n_fds] = fs->fd; |
1349 | rfd_names[n_fds] = strdup(strempty(fs->fdname)); | |
1350 | if (!rfd_names[n_fds]) | |
8dd4c05b LP |
1351 | return -ENOMEM; |
1352 | ||
4c47affc FB |
1353 | rn_storage_fds++; |
1354 | n_fds++; | |
8dd4c05b LP |
1355 | } |
1356 | ||
4c47affc | 1357 | rfd_names[n_fds] = NULL; |
a354329f LP |
1358 | } |
1359 | ||
1cc6c93a YW |
1360 | *fds = TAKE_PTR(rfds); |
1361 | *fd_names = TAKE_PTR(rfd_names); | |
9b141911 | 1362 | *n_socket_fds = rn_socket_fds; |
4c47affc | 1363 | *n_storage_fds = rn_storage_fds; |
3e33402a | 1364 | |
4c47affc | 1365 | return 0; |
44d8db9e LP |
1366 | } |
1367 | ||
5686391b LP |
1368 | static int service_allocate_exec_fd_event_source( |
1369 | Service *s, | |
1370 | int fd, | |
1371 | sd_event_source **ret_event_source) { | |
1372 | ||
1373 | _cleanup_(sd_event_source_unrefp) sd_event_source *source = NULL; | |
1374 | int r; | |
1375 | ||
1376 | assert(s); | |
1377 | assert(fd >= 0); | |
1378 | assert(ret_event_source); | |
1379 | ||
1380 | r = sd_event_add_io(UNIT(s)->manager->event, &source, fd, 0, service_dispatch_exec_io, s); | |
1381 | if (r < 0) | |
1382 | return log_unit_error_errno(UNIT(s), r, "Failed to allocate exec_fd event source: %m"); | |
1383 | ||
1384 | /* This is a bit lower priority than SIGCHLD, as that carries a lot more interesting failure information */ | |
1385 | ||
1386 | r = sd_event_source_set_priority(source, SD_EVENT_PRIORITY_NORMAL-3); | |
1387 | if (r < 0) | |
1388 | return log_unit_error_errno(UNIT(s), r, "Failed to adjust priority of exec_fd event source: %m"); | |
1389 | ||
bc989831 | 1390 | (void) sd_event_source_set_description(source, "service exec_fd"); |
5686391b LP |
1391 | |
1392 | r = sd_event_source_set_io_fd_own(source, true); | |
1393 | if (r < 0) | |
1394 | return log_unit_error_errno(UNIT(s), r, "Failed to pass ownership of fd to event source: %m"); | |
1395 | ||
1396 | *ret_event_source = TAKE_PTR(source); | |
1397 | return 0; | |
1398 | } | |
1399 | ||
1400 | static int service_allocate_exec_fd( | |
1401 | Service *s, | |
1402 | sd_event_source **ret_event_source, | |
e78695d4 | 1403 | int *ret_exec_fd) { |
5686391b | 1404 | |
e78695d4 | 1405 | _cleanup_close_pair_ int p[] = { -1, -1 }; |
5686391b LP |
1406 | int r; |
1407 | ||
1408 | assert(s); | |
1409 | assert(ret_event_source); | |
1410 | assert(ret_exec_fd); | |
1411 | ||
1412 | if (pipe2(p, O_CLOEXEC|O_NONBLOCK) < 0) | |
1413 | return log_unit_error_errno(UNIT(s), errno, "Failed to allocate exec_fd pipe: %m"); | |
1414 | ||
1415 | r = service_allocate_exec_fd_event_source(s, p[0], ret_event_source); | |
1416 | if (r < 0) | |
1417 | return r; | |
1418 | ||
e78695d4 | 1419 | TAKE_FD(p[0]); |
5686391b LP |
1420 | *ret_exec_fd = TAKE_FD(p[1]); |
1421 | ||
1422 | return 0; | |
1423 | } | |
1424 | ||
6375bd20 JW |
1425 | static bool service_exec_needs_notify_socket(Service *s, ExecFlags flags) { |
1426 | assert(s); | |
1427 | ||
1428 | /* Notifications are accepted depending on the process and | |
1429 | * the access setting of the service: | |
1430 | * process: \ access: NONE MAIN EXEC ALL | |
1431 | * main no yes yes yes | |
1432 | * control no no yes yes | |
1433 | * other (forked) no no no yes */ | |
1434 | ||
1435 | if (flags & EXEC_IS_CONTROL) | |
1436 | /* A control process */ | |
1437 | return IN_SET(s->notify_access, NOTIFY_EXEC, NOTIFY_ALL); | |
1438 | ||
1439 | /* We only spawn main processes and control processes, so any | |
1440 | * process that is not a control process is a main process */ | |
1441 | return s->notify_access != NOTIFY_NONE; | |
1442 | } | |
1443 | ||
95c81c55 LB |
1444 | static Service *service_get_triggering_service(Service *s) { |
1445 | Unit *candidate = NULL, *other; | |
cdebedb4 | 1446 | |
95c81c55 | 1447 | assert(s); |
cdebedb4 | 1448 | |
95c81c55 LB |
1449 | /* Return the service which triggered service 's', this means dependency |
1450 | * types which include the UNIT_ATOM_ON_{FAILURE,SUCCESS}_OF atoms. | |
cdebedb4 | 1451 | * |
95c81c55 LB |
1452 | * N.B. if there are multiple services which could trigger 's' via OnFailure= |
1453 | * or OnSuccess= then we return NULL. This is since we don't know from which | |
1454 | * one to propagate the exit status. */ | |
1455 | ||
1456 | UNIT_FOREACH_DEPENDENCY(other, UNIT(s), UNIT_ATOM_ON_FAILURE_OF) { | |
7a5049c7 ZJS |
1457 | if (candidate) |
1458 | goto have_other; | |
95c81c55 LB |
1459 | candidate = other; |
1460 | } | |
1461 | ||
1462 | UNIT_FOREACH_DEPENDENCY(other, UNIT(s), UNIT_ATOM_ON_SUCCESS_OF) { | |
7a5049c7 ZJS |
1463 | if (candidate) |
1464 | goto have_other; | |
95c81c55 | 1465 | candidate = other; |
cdebedb4 PM |
1466 | } |
1467 | ||
95c81c55 | 1468 | return SERVICE(candidate); |
7a5049c7 ZJS |
1469 | |
1470 | have_other: | |
1471 | log_unit_warning(UNIT(s), "multiple trigger source candidates for exit status propagation (%s, %s), skipping.", | |
1472 | candidate->id, other->id); | |
1473 | return NULL; | |
cdebedb4 PM |
1474 | } |
1475 | ||
edbf8984 ZJS |
1476 | static int service_spawn_internal( |
1477 | const char *caller, | |
81a2b7ce LP |
1478 | Service *s, |
1479 | ExecCommand *c, | |
21b2ce39 | 1480 | usec_t timeout, |
c39f1ce2 | 1481 | ExecFlags flags, |
e78695d4 | 1482 | pid_t *ret_pid) { |
81a2b7ce | 1483 | |
b9c04eaf | 1484 | _cleanup_(exec_params_clear) ExecParameters exec_params = { |
c3f8a065 LP |
1485 | .flags = flags, |
1486 | .stdin_fd = -1, | |
1487 | .stdout_fd = -1, | |
1488 | .stderr_fd = -1, | |
1489 | .exec_fd = -1, | |
9fa95f85 | 1490 | }; |
5686391b | 1491 | _cleanup_(sd_event_source_unrefp) sd_event_source *exec_fd_source = NULL; |
c3f8a065 LP |
1492 | _cleanup_strv_free_ char **final_env = NULL, **our_env = NULL; |
1493 | size_t n_env = 0; | |
3c7416b6 | 1494 | pid_t pid; |
8dd4c05b LP |
1495 | int r; |
1496 | ||
edbf8984 | 1497 | assert(caller); |
034c6ed7 LP |
1498 | assert(s); |
1499 | assert(c); | |
e78695d4 | 1500 | assert(ret_pid); |
034c6ed7 | 1501 | |
edbf8984 ZJS |
1502 | log_unit_debug(UNIT(s), "Will spawn child (%s): %s", caller, c->path); |
1503 | ||
78f93209 | 1504 | r = unit_prepare_exec(UNIT(s)); /* This realizes the cgroup, among other things */ |
3c7416b6 LP |
1505 | if (r < 0) |
1506 | return r; | |
1507 | ||
bc989831 ZJS |
1508 | assert(!s->exec_fd_event_source); |
1509 | ||
9c1a61ad LP |
1510 | if (flags & EXEC_IS_CONTROL) { |
1511 | /* If this is a control process, mask the permissions/chroot application if this is requested. */ | |
1512 | if (s->permissions_start_only) | |
1703fa41 | 1513 | exec_params.flags &= ~EXEC_APPLY_SANDBOXING; |
9c1a61ad LP |
1514 | if (s->root_directory_start_only) |
1515 | exec_params.flags &= ~EXEC_APPLY_CHROOT; | |
1516 | } | |
1517 | ||
c39f1ce2 | 1518 | if ((flags & EXEC_PASS_FDS) || |
6cf6bbc2 LP |
1519 | s->exec_context.std_input == EXEC_INPUT_SOCKET || |
1520 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1521 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1522 | ||
c3f8a065 LP |
1523 | r = service_collect_fds(s, |
1524 | &exec_params.fds, | |
1525 | &exec_params.fd_names, | |
1526 | &exec_params.n_socket_fds, | |
1527 | &exec_params.n_storage_fds); | |
8dd4c05b | 1528 | if (r < 0) |
36c16a7c | 1529 | return r; |
6cf6bbc2 | 1530 | |
c3f8a065 | 1531 | log_unit_debug(UNIT(s), "Passing %zu fds to service", exec_params.n_socket_fds + exec_params.n_storage_fds); |
4f2d528d | 1532 | } |
44d8db9e | 1533 | |
5686391b | 1534 | if (!FLAGS_SET(flags, EXEC_IS_CONTROL) && s->type == SERVICE_EXEC) { |
c3f8a065 | 1535 | r = service_allocate_exec_fd(s, &exec_fd_source, &exec_params.exec_fd); |
5686391b LP |
1536 | if (r < 0) |
1537 | return r; | |
1538 | } | |
1539 | ||
36c16a7c LP |
1540 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), timeout)); |
1541 | if (r < 0) | |
1542 | return r; | |
034c6ed7 | 1543 | |
95c81c55 | 1544 | our_env = new0(char*, 12); |
36c16a7c LP |
1545 | if (!our_env) |
1546 | return -ENOMEM; | |
c952c6ec | 1547 | |
3bdc25a4 | 1548 | if (service_exec_needs_notify_socket(s, flags)) { |
36c16a7c LP |
1549 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) |
1550 | return -ENOMEM; | |
c952c6ec | 1551 | |
3bdc25a4 LP |
1552 | exec_params.notify_socket = UNIT(s)->manager->notify_socket; |
1553 | } | |
1554 | ||
2105e76a | 1555 | if (s->main_pid > 0) |
36c16a7c LP |
1556 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) |
1557 | return -ENOMEM; | |
2105e76a | 1558 | |
c39f1ce2 | 1559 | if (MANAGER_IS_USER(UNIT(s)->manager)) |
df0ff127 | 1560 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid_cached()) < 0) |
36c16a7c | 1561 | return -ENOMEM; |
97ae63e2 | 1562 | |
dcf3c3c3 LP |
1563 | if (s->pid_file) |
1564 | if (asprintf(our_env + n_env++, "PIDFILE=%s", s->pid_file) < 0) | |
1565 | return -ENOMEM; | |
1566 | ||
8dd4c05b | 1567 | if (s->socket_fd >= 0) { |
3b1c5241 SL |
1568 | union sockaddr_union sa; |
1569 | socklen_t salen = sizeof(sa); | |
1570 | ||
f56e7bfe LP |
1571 | /* If this is a per-connection service instance, let's set $REMOTE_ADDR and $REMOTE_PORT to something |
1572 | * useful. Note that we do this only when we are still connected at this point in time, which we might | |
1573 | * very well not be. Hence we ignore all errors when retrieving peer information (as that might result | |
1574 | * in ENOTCONN), and just use whate we can use. */ | |
f2dbd059 | 1575 | |
f56e7bfe LP |
1576 | if (getpeername(s->socket_fd, &sa.sa, &salen) >= 0 && |
1577 | IN_SET(sa.sa.sa_family, AF_INET, AF_INET6, AF_VSOCK)) { | |
3b1c5241 SL |
1578 | _cleanup_free_ char *addr = NULL; |
1579 | char *t; | |
882ac6e7 | 1580 | unsigned port; |
3b1c5241 SL |
1581 | |
1582 | r = sockaddr_pretty(&sa.sa, salen, true, false, &addr); | |
1583 | if (r < 0) | |
36c16a7c | 1584 | return r; |
3b1c5241 | 1585 | |
b910cc72 | 1586 | t = strjoin("REMOTE_ADDR=", addr); |
36c16a7c LP |
1587 | if (!t) |
1588 | return -ENOMEM; | |
3b1c5241 SL |
1589 | our_env[n_env++] = t; |
1590 | ||
882ac6e7 SH |
1591 | r = sockaddr_port(&sa.sa, &port); |
1592 | if (r < 0) | |
1593 | return r; | |
3b1c5241 | 1594 | |
36c16a7c LP |
1595 | if (asprintf(&t, "REMOTE_PORT=%u", port) < 0) |
1596 | return -ENOMEM; | |
3b1c5241 SL |
1597 | our_env[n_env++] = t; |
1598 | } | |
1599 | } | |
1600 | ||
95c81c55 LB |
1601 | Service *env_source = NULL; |
1602 | const char *monitor_prefix; | |
136dc4c4 | 1603 | if (flags & EXEC_SETENV_RESULT) { |
95c81c55 LB |
1604 | env_source = s; |
1605 | monitor_prefix = ""; | |
1606 | } else if (flags & EXEC_SETENV_MONITOR_RESULT) { | |
1607 | env_source = service_get_triggering_service(s); | |
1608 | monitor_prefix = "MONITOR_"; | |
1609 | } | |
1610 | ||
1611 | if (env_source) { | |
1612 | if (asprintf(our_env + n_env++, "%sSERVICE_RESULT=%s", monitor_prefix, service_result_to_string(env_source->result)) < 0) | |
136dc4c4 LP |
1613 | return -ENOMEM; |
1614 | ||
95c81c55 LB |
1615 | if (env_source->main_exec_status.pid > 0 && |
1616 | dual_timestamp_is_set(&env_source->main_exec_status.exit_timestamp)) { | |
1617 | if (asprintf(our_env + n_env++, "%sEXIT_CODE=%s", monitor_prefix, sigchld_code_to_string(env_source->main_exec_status.code)) < 0) | |
136dc4c4 LP |
1618 | return -ENOMEM; |
1619 | ||
95c81c55 LB |
1620 | if (env_source->main_exec_status.code == CLD_EXITED) |
1621 | r = asprintf(our_env + n_env++, "%sEXIT_STATUS=%i", monitor_prefix, env_source->main_exec_status.status); | |
136dc4c4 | 1622 | else |
95c81c55 | 1623 | r = asprintf(our_env + n_env++, "%sEXIT_STATUS=%s", monitor_prefix, signal_to_string(env_source->main_exec_status.status)); |
cdebedb4 | 1624 | |
136dc4c4 LP |
1625 | if (r < 0) |
1626 | return -ENOMEM; | |
1627 | } | |
cdebedb4 | 1628 | |
95c81c55 LB |
1629 | if (env_source != s) { |
1630 | if (!sd_id128_is_null(UNIT(env_source)->invocation_id)) { | |
1631 | r = asprintf(our_env + n_env++, "%sINVOCATION_ID=" SD_ID128_FORMAT_STR, | |
1632 | monitor_prefix, SD_ID128_FORMAT_VAL(UNIT(env_source)->invocation_id)); | |
1633 | if (r < 0) | |
1634 | return -ENOMEM; | |
1635 | } | |
1636 | ||
1637 | if (asprintf(our_env + n_env++, "%sUNIT=%s", monitor_prefix, UNIT(env_source)->id) < 0) | |
1638 | return -ENOMEM; | |
cdebedb4 | 1639 | } |
136dc4c4 LP |
1640 | } |
1641 | ||
48b92b37 LB |
1642 | if (UNIT(s)->activation_details) { |
1643 | r = activation_details_append_env(UNIT(s)->activation_details, &our_env); | |
1644 | if (r < 0) | |
1645 | return r; | |
1646 | /* The number of env vars added here can vary, rather than keeping the allocation block in | |
1647 | * sync manually, these functions simply use the strv methods to append to it, so we need | |
1648 | * to update n_env when we are done in case of future usage. */ | |
1649 | n_env += r; | |
1650 | } | |
1651 | ||
1ad6e8b3 LP |
1652 | r = unit_set_exec_params(UNIT(s), &exec_params); |
1653 | if (r < 0) | |
1654 | return r; | |
3536f49e | 1655 | |
4ab3d29f | 1656 | final_env = strv_env_merge(exec_params.environment, our_env); |
36c16a7c LP |
1657 | if (!final_env) |
1658 | return -ENOMEM; | |
c952c6ec | 1659 | |
ac647978 | 1660 | /* System D-Bus needs nss-systemd disabled, so that we don't deadlock */ |
de90700f | 1661 | SET_FLAG(exec_params.flags, EXEC_NSS_DYNAMIC_BYPASS, |
ac647978 | 1662 | MANAGER_IS_SYSTEM(UNIT(s)->manager) && unit_has_name(UNIT(s), SPECIAL_DBUS_SERVICE)); |
4ad49000 | 1663 | |
b9c04eaf | 1664 | strv_free_and_replace(exec_params.environment, final_env); |
34b3f625 | 1665 | exec_params.watchdog_usec = service_get_watchdog_usec(s); |
a34ceba6 | 1666 | exec_params.selinux_context_net = s->socket_fd_selinux_context_net; |
9fa95f85 DM |
1667 | if (s->type == SERVICE_IDLE) |
1668 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
a34ceba6 LP |
1669 | exec_params.stdin_fd = s->stdin_fd; |
1670 | exec_params.stdout_fd = s->stdout_fd; | |
1671 | exec_params.stderr_fd = s->stderr_fd; | |
9fa95f85 | 1672 | |
f2341e0a LP |
1673 | r = exec_spawn(UNIT(s), |
1674 | c, | |
9e2f7c11 | 1675 | &s->exec_context, |
9fa95f85 | 1676 | &exec_params, |
613b411c | 1677 | s->exec_runtime, |
29206d46 | 1678 | &s->dynamic_creds, |
9e2f7c11 | 1679 | &pid); |
9e2f7c11 | 1680 | if (r < 0) |
36c16a7c | 1681 | return r; |
034c6ed7 | 1682 | |
5686391b LP |
1683 | s->exec_fd_event_source = TAKE_PTR(exec_fd_source); |
1684 | s->exec_fd_hot = false; | |
1685 | ||
f75f613d FB |
1686 | r = unit_watch_pid(UNIT(s), pid, true); |
1687 | if (r < 0) | |
36c16a7c | 1688 | return r; |
034c6ed7 | 1689 | |
e78695d4 | 1690 | *ret_pid = pid; |
034c6ed7 | 1691 | |
5cb5a6ff | 1692 | return 0; |
034c6ed7 LP |
1693 | } |
1694 | ||
80876c20 LP |
1695 | static int main_pid_good(Service *s) { |
1696 | assert(s); | |
1697 | ||
51894d70 | 1698 | /* Returns 0 if the pid is dead, > 0 if it is good, < 0 if we don't know */ |
80876c20 | 1699 | |
fc08079e | 1700 | /* If we know the pid file, then let's just check if it is |
80876c20 | 1701 | * still valid */ |
6dfa5494 LP |
1702 | if (s->main_pid_known) { |
1703 | ||
1704 | /* If it's an alien child let's check if it is still | |
1705 | * alive ... */ | |
62220cf7 | 1706 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1707 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1708 | |
1709 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1710 | * which we really should wait for to collect exit | |
1711 | * status and code */ | |
80876c20 | 1712 | return s->main_pid > 0; |
6dfa5494 | 1713 | } |
80876c20 LP |
1714 | |
1715 | /* We don't know the pid */ | |
1716 | return -EAGAIN; | |
1717 | } | |
1718 | ||
019be286 | 1719 | static int control_pid_good(Service *s) { |
80876c20 LP |
1720 | assert(s); |
1721 | ||
07697d7e LP |
1722 | /* Returns 0 if the control PID is dead, > 0 if it is good. We never actually return < 0 here, but in order to |
1723 | * make this function as similar as possible to main_pid_good() and cgroup_good(), we pretend that < 0 also | |
1724 | * means: we can't figure it out. */ | |
1725 | ||
80876c20 LP |
1726 | return s->control_pid > 0; |
1727 | } | |
1728 | ||
cb0e818f HC |
1729 | static int cgroup_good(Service *s) { |
1730 | int r; | |
1731 | ||
abaf5edd ZJS |
1732 | assert(s); |
1733 | ||
cb0e818f HC |
1734 | /* Returns 0 if the cgroup is empty or doesn't exist, > 0 if it is exists and is populated, < 0 if we can't |
1735 | * figure it out */ | |
1736 | ||
abaf5edd ZJS |
1737 | if (!UNIT(s)->cgroup_path) |
1738 | return 0; | |
1739 | ||
1740 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path); | |
117dcc57 | 1741 | if (r < 0) |
80876c20 LP |
1742 | return r; |
1743 | ||
b13ddbbc | 1744 | return r == 0; |
80876c20 LP |
1745 | } |
1746 | ||
ebc57b89 | 1747 | static bool service_shall_restart(Service *s, const char **reason) { |
a509f0e6 LP |
1748 | assert(s); |
1749 | ||
1750 | /* Don't restart after manual stops */ | |
ebc57b89 ZJS |
1751 | if (s->forbid_restart) { |
1752 | *reason = "manual stop"; | |
a509f0e6 | 1753 | return false; |
ebc57b89 | 1754 | } |
a509f0e6 LP |
1755 | |
1756 | /* Never restart if this is configured as special exception */ | |
ebc57b89 ZJS |
1757 | if (exit_status_set_test(&s->restart_prevent_status, s->main_exec_status.code, s->main_exec_status.status)) { |
1758 | *reason = "prevented by exit status"; | |
a509f0e6 | 1759 | return false; |
ebc57b89 | 1760 | } |
a509f0e6 LP |
1761 | |
1762 | /* Restart if the exit code/status are configured as restart triggers */ | |
ebc57b89 ZJS |
1763 | if (exit_status_set_test(&s->restart_force_status, s->main_exec_status.code, s->main_exec_status.status)) { |
1764 | *reason = "forced by exit status"; | |
a509f0e6 | 1765 | return true; |
ebc57b89 | 1766 | } |
a509f0e6 | 1767 | |
ebc57b89 | 1768 | *reason = "restart setting"; |
a509f0e6 LP |
1769 | switch (s->restart) { |
1770 | ||
1771 | case SERVICE_RESTART_NO: | |
1772 | return false; | |
1773 | ||
1774 | case SERVICE_RESTART_ALWAYS: | |
abb99360 | 1775 | return s->result != SERVICE_SKIP_CONDITION; |
a509f0e6 LP |
1776 | |
1777 | case SERVICE_RESTART_ON_SUCCESS: | |
1778 | return s->result == SERVICE_SUCCESS; | |
1779 | ||
1780 | case SERVICE_RESTART_ON_FAILURE: | |
bb924478 | 1781 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_SKIP_CONDITION); |
a509f0e6 LP |
1782 | |
1783 | case SERVICE_RESTART_ON_ABNORMAL: | |
bb924478 | 1784 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE, SERVICE_SKIP_CONDITION); |
a509f0e6 LP |
1785 | |
1786 | case SERVICE_RESTART_ON_WATCHDOG: | |
1787 | return s->result == SERVICE_FAILURE_WATCHDOG; | |
1788 | ||
1789 | case SERVICE_RESTART_ON_ABORT: | |
1790 | return IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP); | |
1791 | ||
1792 | default: | |
04499a70 | 1793 | assert_not_reached(); |
a509f0e6 LP |
1794 | } |
1795 | } | |
1796 | ||
deb4e708 MK |
1797 | static bool service_will_restart(Unit *u) { |
1798 | Service *s = SERVICE(u); | |
1799 | ||
53f47dfc YW |
1800 | assert(s); |
1801 | ||
deb4e708 MK |
1802 | if (s->will_auto_restart) |
1803 | return true; | |
53f47dfc YW |
1804 | if (s->state == SERVICE_AUTO_RESTART) |
1805 | return true; | |
2ad2e41a | 1806 | |
52a12341 | 1807 | return unit_will_restart_default(u); |
53f47dfc YW |
1808 | } |
1809 | ||
f42806df | 1810 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
31cd5f63 | 1811 | ServiceState end_state; |
034c6ed7 | 1812 | int r; |
0f52f8e5 | 1813 | |
034c6ed7 LP |
1814 | assert(s); |
1815 | ||
0f52f8e5 LP |
1816 | /* If there's a stop job queued before we enter the DEAD state, we shouldn't act on Restart=, in order to not |
1817 | * undo what has already been enqueued. */ | |
1818 | if (unit_stop_pending(UNIT(s))) | |
1819 | allow_restart = false; | |
1820 | ||
a0fef983 | 1821 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1822 | s->result = f; |
034c6ed7 | 1823 | |
31cd5f63 AZ |
1824 | if (s->result == SERVICE_SUCCESS) { |
1825 | unit_log_success(UNIT(s)); | |
1826 | end_state = SERVICE_DEAD; | |
1827 | } else if (s->result == SERVICE_SKIP_CONDITION) { | |
1828 | unit_log_skip(UNIT(s), service_result_to_string(s->result)); | |
1829 | end_state = SERVICE_DEAD; | |
1830 | } else { | |
1831 | unit_log_failure(UNIT(s), service_result_to_string(s->result)); | |
1832 | end_state = SERVICE_FAILED; | |
1833 | } | |
4c425434 | 1834 | unit_warn_leftover_processes(UNIT(s), unit_log_leftover_process_stop); |
ed77d407 | 1835 | |
ebc57b89 ZJS |
1836 | if (!allow_restart) |
1837 | log_unit_debug(UNIT(s), "Service restart not allowed."); | |
1838 | else { | |
1839 | const char *reason; | |
1840 | bool shall_restart; | |
1841 | ||
1842 | shall_restart = service_shall_restart(s, &reason); | |
1843 | log_unit_debug(UNIT(s), "Service will %srestart (%s)", | |
1844 | shall_restart ? "" : "not ", | |
1845 | reason); | |
1846 | if (shall_restart) | |
1847 | s->will_auto_restart = true; | |
1848 | } | |
deb4e708 | 1849 | |
7eb2a8a1 LP |
1850 | /* Make sure service_release_resources() doesn't destroy our FD store, while we are changing through |
1851 | * SERVICE_FAILED/SERVICE_DEAD before entering into SERVICE_AUTO_RESTART. */ | |
1852 | s->n_keep_fd_store ++; | |
1853 | ||
31cd5f63 | 1854 | service_set_state(s, end_state); |
0c7f15b3 | 1855 | |
deb4e708 MK |
1856 | if (s->will_auto_restart) { |
1857 | s->will_auto_restart = false; | |
034c6ed7 | 1858 | |
36c16a7c | 1859 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
7eb2a8a1 LP |
1860 | if (r < 0) { |
1861 | s->n_keep_fd_store--; | |
034c6ed7 | 1862 | goto fail; |
7eb2a8a1 | 1863 | } |
034c6ed7 LP |
1864 | |
1865 | service_set_state(s, SERVICE_AUTO_RESTART); | |
7a0019d3 LP |
1866 | } else |
1867 | /* If we shan't restart, then flush out the restart counter. But don't do that immediately, so that the | |
1868 | * user can still introspect the counter. Do so on the next start. */ | |
1869 | s->flush_n_restarts = true; | |
034c6ed7 | 1870 | |
5238e957 | 1871 | /* The new state is in effect, let's decrease the fd store ref counter again. Let's also re-add us to the GC |
7eb2a8a1 LP |
1872 | * queue, so that the fd store is possibly gc'ed again */ |
1873 | s->n_keep_fd_store--; | |
1874 | unit_add_to_gc_queue(UNIT(s)); | |
1875 | ||
f2341e0a | 1876 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1877 | s->forbid_restart = false; |
1878 | ||
e66cf1a3 | 1879 | /* We want fresh tmpdirs in case service is started again immediately */ |
e8a565cb | 1880 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, true); |
c17ec25e | 1881 | |
95939aed | 1882 | /* Also, remove the runtime directory */ |
bb0c0d6f | 1883 | unit_destroy_runtime_data(UNIT(s), &s->exec_context); |
e66cf1a3 | 1884 | |
00d9ef85 LP |
1885 | /* Get rid of the IPC bits of the user */ |
1886 | unit_unref_uid_gid(UNIT(s), true); | |
1887 | ||
29206d46 LP |
1888 | /* Release the user, and destroy it if we are the only remaining owner */ |
1889 | dynamic_creds_destroy(&s->dynamic_creds); | |
1890 | ||
9285c9ff LN |
1891 | /* Try to delete the pid file. At this point it will be |
1892 | * out-of-date, and some software might be confused by it, so | |
1893 | * let's remove it. */ | |
1894 | if (s->pid_file) | |
fabab190 | 1895 | (void) unlink(s->pid_file); |
9285c9ff | 1896 | |
6f765baf LP |
1897 | /* Reset TTY ownership if necessary */ |
1898 | exec_context_revert_tty(&s->exec_context); | |
1899 | ||
034c6ed7 LP |
1900 | return; |
1901 | ||
1902 | fail: | |
f2341e0a | 1903 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1904 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1905 | } |
1906 | ||
f42806df | 1907 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1908 | int r; |
1909 | assert(s); | |
1910 | ||
a0fef983 | 1911 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1912 | s->result = f; |
034c6ed7 | 1913 | |
5e94833f | 1914 | service_unwatch_control_pid(s); |
50be4f4a | 1915 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
5e94833f | 1916 | |
117dcc57 ZJS |
1917 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1918 | if (s->control_command) { | |
867b3b7d LP |
1919 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1920 | ||
ecedd90f LP |
1921 | r = service_spawn(s, |
1922 | s->control_command, | |
21b2ce39 | 1923 | s->timeout_stop_usec, |
78f93209 | 1924 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
1925 | &s->control_pid); |
1926 | if (r < 0) | |
034c6ed7 LP |
1927 | goto fail; |
1928 | ||
80876c20 LP |
1929 | service_set_state(s, SERVICE_STOP_POST); |
1930 | } else | |
ac84d1fb | 1931 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1932 | |
1933 | return; | |
1934 | ||
1935 | fail: | |
f2341e0a | 1936 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1937 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1938 | } |
1939 | ||
a232ebcc | 1940 | static int state_to_kill_operation(Service *s, ServiceState state) { |
4940c0b0 LP |
1941 | switch (state) { |
1942 | ||
c87700a1 | 1943 | case SERVICE_STOP_WATCHDOG: |
bf760801 | 1944 | case SERVICE_FINAL_WATCHDOG: |
c87700a1 | 1945 | return KILL_WATCHDOG; |
4940c0b0 LP |
1946 | |
1947 | case SERVICE_STOP_SIGTERM: | |
a232ebcc ZJS |
1948 | if (unit_has_job_type(UNIT(s), JOB_RESTART)) |
1949 | return KILL_RESTART; | |
1950 | _fallthrough_; | |
1951 | ||
4940c0b0 LP |
1952 | case SERVICE_FINAL_SIGTERM: |
1953 | return KILL_TERMINATE; | |
1954 | ||
1955 | case SERVICE_STOP_SIGKILL: | |
1956 | case SERVICE_FINAL_SIGKILL: | |
1957 | return KILL_KILL; | |
1958 | ||
1959 | default: | |
1960 | return _KILL_OPERATION_INVALID; | |
1961 | } | |
1962 | } | |
1963 | ||
f42806df | 1964 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
bf760801 | 1965 | int kill_operation, r; |
034c6ed7 LP |
1966 | |
1967 | assert(s); | |
1968 | ||
a0fef983 | 1969 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1970 | s->result = f; |
034c6ed7 | 1971 | |
50be4f4a LP |
1972 | /* Before sending any signal, make sure we track all members of this cgroup */ |
1973 | (void) unit_watch_all_pids(UNIT(s)); | |
1974 | ||
1975 | /* Also, enqueue a job that we recheck all our PIDs a bit later, given that it's likely some processes have | |
1976 | * died now */ | |
1977 | (void) unit_enqueue_rewatch_pids(UNIT(s)); | |
a911bb9a | 1978 | |
bf760801 | 1979 | kill_operation = state_to_kill_operation(s, state); |
cd2086fe LP |
1980 | r = unit_kill_context( |
1981 | UNIT(s), | |
1982 | &s->kill_context, | |
bf760801 | 1983 | kill_operation, |
cd2086fe LP |
1984 | s->main_pid, |
1985 | s->control_pid, | |
1986 | s->main_pid_alien); | |
1987 | if (r < 0) | |
1988 | goto fail; | |
034c6ed7 | 1989 | |
cd2086fe | 1990 | if (r > 0) { |
dc653bf4 | 1991 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), |
bf760801 | 1992 | kill_operation == KILL_WATCHDOG ? service_timeout_abort_usec(s) : s->timeout_stop_usec)); |
36c16a7c LP |
1993 | if (r < 0) |
1994 | goto fail; | |
d6ea93e3 | 1995 | |
80876c20 | 1996 | service_set_state(s, state); |
c87700a1 | 1997 | } else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1998 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
c87700a1 | 1999 | else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 2000 | service_enter_stop_post(s, SERVICE_SUCCESS); |
bf760801 | 2001 | else if (IN_SET(state, SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 2002 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 2003 | else |
f42806df | 2004 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
2005 | |
2006 | return; | |
2007 | ||
2008 | fail: | |
f2341e0a | 2009 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 2010 | |
c87700a1 | 2011 | if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 2012 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2013 | else |
f42806df | 2014 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2015 | } |
2016 | ||
308d72dc LP |
2017 | static void service_enter_stop_by_notify(Service *s) { |
2018 | assert(s); | |
2019 | ||
50be4f4a | 2020 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
308d72dc | 2021 | |
36c16a7c | 2022 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
308d72dc | 2023 | |
6041a7ee MS |
2024 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
2025 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
2026 | } |
2027 | ||
f42806df | 2028 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 2029 | int r; |
5925dd3c | 2030 | |
034c6ed7 LP |
2031 | assert(s); |
2032 | ||
a0fef983 | 2033 | if (s->result == SERVICE_SUCCESS) |
f42806df | 2034 | s->result = f; |
034c6ed7 | 2035 | |
5e94833f | 2036 | service_unwatch_control_pid(s); |
50be4f4a | 2037 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
5e94833f | 2038 | |
117dcc57 ZJS |
2039 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
2040 | if (s->control_command) { | |
867b3b7d LP |
2041 | s->control_command_id = SERVICE_EXEC_STOP; |
2042 | ||
ecedd90f LP |
2043 | r = service_spawn(s, |
2044 | s->control_command, | |
21b2ce39 | 2045 | s->timeout_stop_usec, |
78f93209 | 2046 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
2047 | &s->control_pid); |
2048 | if (r < 0) | |
034c6ed7 LP |
2049 | goto fail; |
2050 | ||
80876c20 LP |
2051 | service_set_state(s, SERVICE_STOP); |
2052 | } else | |
f42806df | 2053 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
2054 | |
2055 | return; | |
2056 | ||
2057 | fail: | |
f2341e0a | 2058 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 2059 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2060 | } |
2061 | ||
957c3cf9 LP |
2062 | static bool service_good(Service *s) { |
2063 | int main_pid_ok; | |
2064 | assert(s); | |
2065 | ||
2066 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
2067 | return false; | |
2068 | ||
2069 | main_pid_ok = main_pid_good(s); | |
2070 | if (main_pid_ok > 0) /* It's alive */ | |
2071 | return true; | |
2072 | if (main_pid_ok == 0) /* It's dead */ | |
2073 | return false; | |
2074 | ||
2075 | /* OK, we don't know anything about the main PID, maybe | |
2076 | * because there is none. Let's check the control group | |
2077 | * instead. */ | |
2078 | ||
2079 | return cgroup_good(s) != 0; | |
2080 | } | |
2081 | ||
f42806df | 2082 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
2083 | assert(s); |
2084 | ||
a0fef983 | 2085 | if (s->result == SERVICE_SUCCESS) |
f42806df | 2086 | s->result = f; |
80876c20 | 2087 | |
089b64d5 LP |
2088 | service_unwatch_control_pid(s); |
2089 | ||
ec5b1452 LP |
2090 | if (s->result != SERVICE_SUCCESS) |
2091 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
2092 | else if (service_good(s)) { | |
308d72dc | 2093 | |
ec5b1452 | 2094 | /* If there are any queued up sd_notify() notifications, process them now */ |
308d72dc LP |
2095 | if (s->notify_state == NOTIFY_RELOADING) |
2096 | service_enter_reload_by_notify(s); | |
2097 | else if (s->notify_state == NOTIFY_STOPPING) | |
2098 | service_enter_stop_by_notify(s); | |
36c16a7c | 2099 | else { |
308d72dc | 2100 | service_set_state(s, SERVICE_RUNNING); |
5918a933 | 2101 | service_arm_timer(s, service_running_timeout(s)); |
36c16a7c | 2102 | } |
308d72dc | 2103 | |
ec5b1452 | 2104 | } else if (s->remain_after_exit) |
80876c20 LP |
2105 | service_set_state(s, SERVICE_EXITED); |
2106 | else | |
f42806df | 2107 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
2108 | } |
2109 | ||
034c6ed7 LP |
2110 | static void service_enter_start_post(Service *s) { |
2111 | int r; | |
2112 | assert(s); | |
2113 | ||
5e94833f | 2114 | service_unwatch_control_pid(s); |
842129f5 | 2115 | service_reset_watchdog(s); |
bb242b7b | 2116 | |
117dcc57 ZJS |
2117 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
2118 | if (s->control_command) { | |
867b3b7d LP |
2119 | s->control_command_id = SERVICE_EXEC_START_POST; |
2120 | ||
ecedd90f LP |
2121 | r = service_spawn(s, |
2122 | s->control_command, | |
21b2ce39 | 2123 | s->timeout_start_usec, |
78f93209 | 2124 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
2125 | &s->control_pid); |
2126 | if (r < 0) | |
034c6ed7 LP |
2127 | goto fail; |
2128 | ||
80876c20 LP |
2129 | service_set_state(s, SERVICE_START_POST); |
2130 | } else | |
f42806df | 2131 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2132 | |
2133 | return; | |
2134 | ||
2135 | fail: | |
f2341e0a | 2136 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 2137 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2138 | } |
2139 | ||
e9a4f676 | 2140 | static void service_kill_control_process(Service *s) { |
a6951a50 | 2141 | int r; |
4ad49000 | 2142 | |
a6951a50 LP |
2143 | assert(s); |
2144 | ||
e9a4f676 LP |
2145 | if (s->control_pid <= 0) |
2146 | return; | |
4ad49000 | 2147 | |
e9a4f676 LP |
2148 | r = kill_and_sigcont(s->control_pid, SIGKILL); |
2149 | if (r < 0) { | |
2150 | _cleanup_free_ char *comm = NULL; | |
a6951a50 | 2151 | |
e9a4f676 | 2152 | (void) get_process_comm(s->control_pid, &comm); |
a6951a50 | 2153 | |
e9a4f676 LP |
2154 | log_unit_debug_errno(UNIT(s), r, "Failed to kill control process " PID_FMT " (%s), ignoring: %m", |
2155 | s->control_pid, strna(comm)); | |
a6951a50 | 2156 | } |
4ad49000 LP |
2157 | } |
2158 | ||
c53d2d54 DB |
2159 | static int service_adverse_to_leftover_processes(Service *s) { |
2160 | assert(s); | |
2161 | ||
2162 | /* KillMode=mixed and control group are used to indicate that all process should be killed off. | |
4c425434 LP |
2163 | * SendSIGKILL= is used for services that require a clean shutdown. These are typically database |
2164 | * service where a SigKilled process would result in a lengthy recovery and who's shutdown or startup | |
2165 | * time is quite variable (so Timeout settings aren't of use). | |
c53d2d54 DB |
2166 | * |
2167 | * Here we take these two factors and refuse to start a service if there are existing processes | |
2168 | * within a control group. Databases, while generally having some protection against multiple | |
4c425434 | 2169 | * instances running, lets not stress the rigor of these. Also ExecStartPre= parts of the service |
c53d2d54 | 2170 | * aren't as rigoriously written to protect aganst against multiple use. */ |
4c425434 LP |
2171 | |
2172 | if (unit_warn_leftover_processes(UNIT(s), unit_log_leftover_process_start) > 0 && | |
c53d2d54 | 2173 | IN_SET(s->kill_context.kill_mode, KILL_MIXED, KILL_CONTROL_GROUP) && |
569554d9 ZJS |
2174 | !s->kill_context.send_sigkill) |
2175 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(EBUSY), | |
2176 | "Will not start SendSIGKILL=no service of type KillMode=control-group or mixed while processes exist"); | |
2177 | ||
c53d2d54 DB |
2178 | return 0; |
2179 | } | |
2180 | ||
034c6ed7 | 2181 | static void service_enter_start(Service *s) { |
4ad49000 | 2182 | ExecCommand *c; |
36c16a7c | 2183 | usec_t timeout; |
034c6ed7 LP |
2184 | pid_t pid; |
2185 | int r; | |
2186 | ||
2187 | assert(s); | |
2188 | ||
41efeaec LP |
2189 | service_unwatch_control_pid(s); |
2190 | service_unwatch_main_pid(s); | |
80876c20 | 2191 | |
c53d2d54 DB |
2192 | r = service_adverse_to_leftover_processes(s); |
2193 | if (r < 0) | |
2194 | goto fail; | |
a4634b21 | 2195 | |
867b3b7d LP |
2196 | if (s->type == SERVICE_FORKING) { |
2197 | s->control_command_id = SERVICE_EXEC_START; | |
2198 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
2199 | ||
2200 | s->main_command = NULL; | |
2201 | } else { | |
2202 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2203 | s->control_command = NULL; | |
2204 | ||
2205 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
2206 | } | |
34e9ba66 | 2207 | |
96fb8242 | 2208 | if (!c) { |
47fffb35 | 2209 | if (s->type != SERVICE_ONESHOT) { |
cbc056c8 ZJS |
2210 | /* There's no command line configured for the main command? Hmm, that is strange. |
2211 | * This can only happen if the configuration changes at runtime. In this case, | |
2212 | * let's enter a failure state. */ | |
d85ff944 | 2213 | r = log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(ENXIO), "There's no 'start' task anymore we could start."); |
47fffb35 LP |
2214 | goto fail; |
2215 | } | |
2216 | ||
ef5ae8e7 ZJS |
2217 | /* We force a fake state transition here. Otherwise, the unit would go directly from |
2218 | * SERVICE_DEAD to SERVICE_DEAD without SERVICE_ACTIVATING or SERVICE_ACTIVE | |
5238e957 | 2219 | * in between. This way we can later trigger actions that depend on the state |
ef5ae8e7 ZJS |
2220 | * transition, including SuccessAction=. */ |
2221 | service_set_state(s, SERVICE_START); | |
2222 | ||
96fb8242 LP |
2223 | service_enter_start_post(s); |
2224 | return; | |
2225 | } | |
2226 | ||
36c16a7c LP |
2227 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) |
2228 | /* For simple + idle this is the main process. We don't apply any timeout here, but | |
2229 | * service_enter_running() will later apply the .runtime_max_usec timeout. */ | |
2230 | timeout = USEC_INFINITY; | |
2231 | else | |
2232 | timeout = s->timeout_start_usec; | |
2233 | ||
ecedd90f LP |
2234 | r = service_spawn(s, |
2235 | c, | |
36c16a7c | 2236 | timeout, |
cdebedb4 | 2237 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG|EXEC_WRITE_CREDENTIALS|EXEC_SETENV_MONITOR_RESULT, |
ecedd90f LP |
2238 | &pid); |
2239 | if (r < 0) | |
034c6ed7 LP |
2240 | goto fail; |
2241 | ||
36c16a7c | 2242 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) { |
034c6ed7 LP |
2243 | /* For simple services we immediately start |
2244 | * the START_POST binaries. */ | |
2245 | ||
5c95eb28 | 2246 | (void) service_set_main_pid(s, pid); |
034c6ed7 LP |
2247 | service_enter_start_post(s); |
2248 | ||
2249 | } else if (s->type == SERVICE_FORKING) { | |
2250 | ||
2251 | /* For forking services we wait until the start | |
2252 | * process exited. */ | |
2253 | ||
e55224ca | 2254 | s->control_pid = pid; |
80876c20 LP |
2255 | service_set_state(s, SERVICE_START); |
2256 | ||
5686391b | 2257 | } else if (IN_SET(s->type, SERVICE_ONESHOT, SERVICE_DBUS, SERVICE_NOTIFY, SERVICE_EXEC)) { |
7d55e835 | 2258 | |
5686391b | 2259 | /* For oneshot services we wait until the start process exited, too, but it is our main process. */ |
7d55e835 | 2260 | |
5686391b LP |
2261 | /* For D-Bus services we know the main pid right away, but wait for the bus name to appear on the |
2262 | * bus. 'notify' and 'exec' services are similar. */ | |
05e343b7 | 2263 | |
5c95eb28 | 2264 | (void) service_set_main_pid(s, pid); |
80876c20 | 2265 | service_set_state(s, SERVICE_START); |
034c6ed7 | 2266 | } else |
04499a70 | 2267 | assert_not_reached(); |
034c6ed7 LP |
2268 | |
2269 | return; | |
2270 | ||
2271 | fail: | |
f2341e0a | 2272 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
c3fda31d | 2273 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2274 | } |
2275 | ||
2276 | static void service_enter_start_pre(Service *s) { | |
2277 | int r; | |
2278 | ||
2279 | assert(s); | |
2280 | ||
5e94833f LP |
2281 | service_unwatch_control_pid(s); |
2282 | ||
117dcc57 ZJS |
2283 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
2284 | if (s->control_command) { | |
8f53a7b8 | 2285 | |
c53d2d54 DB |
2286 | r = service_adverse_to_leftover_processes(s); |
2287 | if (r < 0) | |
2288 | goto fail; | |
a4634b21 | 2289 | |
867b3b7d LP |
2290 | s->control_command_id = SERVICE_EXEC_START_PRE; |
2291 | ||
ecedd90f LP |
2292 | r = service_spawn(s, |
2293 | s->control_command, | |
21b2ce39 | 2294 | s->timeout_start_usec, |
e7f64b89 | 2295 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN|EXEC_SETENV_MONITOR_RESULT|EXEC_WRITE_CREDENTIALS, |
ecedd90f LP |
2296 | &s->control_pid); |
2297 | if (r < 0) | |
034c6ed7 LP |
2298 | goto fail; |
2299 | ||
80876c20 LP |
2300 | service_set_state(s, SERVICE_START_PRE); |
2301 | } else | |
034c6ed7 LP |
2302 | service_enter_start(s); |
2303 | ||
2304 | return; | |
2305 | ||
2306 | fail: | |
f2341e0a | 2307 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 2308 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2309 | } |
2310 | ||
31cd5f63 AZ |
2311 | static void service_enter_condition(Service *s) { |
2312 | int r; | |
2313 | ||
2314 | assert(s); | |
2315 | ||
2316 | service_unwatch_control_pid(s); | |
2317 | ||
2318 | s->control_command = s->exec_command[SERVICE_EXEC_CONDITION]; | |
2319 | if (s->control_command) { | |
2320 | ||
2321 | r = service_adverse_to_leftover_processes(s); | |
2322 | if (r < 0) | |
2323 | goto fail; | |
2324 | ||
2325 | s->control_command_id = SERVICE_EXEC_CONDITION; | |
2326 | ||
2327 | r = service_spawn(s, | |
2328 | s->control_command, | |
2329 | s->timeout_start_usec, | |
2330 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, | |
2331 | &s->control_pid); | |
2332 | ||
2333 | if (r < 0) | |
2334 | goto fail; | |
2335 | ||
2336 | service_set_state(s, SERVICE_CONDITION); | |
2337 | } else | |
2338 | service_enter_start_pre(s); | |
2339 | ||
2340 | return; | |
2341 | ||
2342 | fail: | |
2343 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'exec-condition' task: %m"); | |
2344 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); | |
2345 | } | |
2346 | ||
034c6ed7 | 2347 | static void service_enter_restart(Service *s) { |
4afd3348 | 2348 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 2349 | int r; |
398ef8ba | 2350 | |
034c6ed7 LP |
2351 | assert(s); |
2352 | ||
28a2dfe8 | 2353 | if (unit_has_job_type(UNIT(s), JOB_STOP)) { |
a8bb2e65 | 2354 | /* Don't restart things if we are going down anyway */ |
c9728806 | 2355 | log_unit_info(UNIT(s), "Stop job pending for unit, skipping automatic restart."); |
feae8adb | 2356 | return; |
2edfa366 LP |
2357 | } |
2358 | ||
48bb5876 DW |
2359 | /* Any units that are bound to this service must also be |
2360 | * restarted. We use JOB_RESTART (instead of the more obvious | |
2361 | * JOB_START) here so that those dependency jobs will be added | |
2362 | * as well. */ | |
50cbaba4 | 2363 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_REPLACE, NULL, &error, NULL); |
48bb5876 | 2364 | if (r < 0) |
034c6ed7 LP |
2365 | goto fail; |
2366 | ||
7a0019d3 | 2367 | /* Count the jobs we enqueue for restarting. This counter is maintained as long as the unit isn't fully |
f0c7e594 | 2368 | * stopped, i.e. as long as it remains up or remains in auto-start states. The user can reset the counter |
7a0019d3 LP |
2369 | * explicitly however via the usual "systemctl reset-failure" logic. */ |
2370 | s->n_restarts ++; | |
2371 | s->flush_n_restarts = false; | |
2372 | ||
c2503e35 RH |
2373 | log_unit_struct(UNIT(s), LOG_INFO, |
2374 | "MESSAGE_ID=" SD_MESSAGE_UNIT_RESTART_SCHEDULED_STR, | |
2375 | LOG_UNIT_INVOCATION_ID(UNIT(s)), | |
92663a5e ZJS |
2376 | LOG_UNIT_MESSAGE(UNIT(s), |
2377 | "Scheduled restart job, restart counter is at %u.", s->n_restarts), | |
c2503e35 | 2378 | "N_RESTARTS=%u", s->n_restarts); |
7a0019d3 LP |
2379 | |
2380 | /* Notify clients about changed restart counter */ | |
2381 | unit_add_to_dbus_queue(UNIT(s)); | |
2382 | ||
a8bb2e65 LP |
2383 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
2384 | * it will be canceled as part of the service_stop() call that | |
2385 | * is executed as part of JOB_RESTART. */ | |
2386 | ||
034c6ed7 LP |
2387 | return; |
2388 | ||
2389 | fail: | |
2a03b9ed | 2390 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, r)); |
f42806df | 2391 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
2392 | } |
2393 | ||
308d72dc | 2394 | static void service_enter_reload_by_notify(Service *s) { |
15d167f8 JW |
2395 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
2396 | int r; | |
2397 | ||
308d72dc LP |
2398 | assert(s); |
2399 | ||
36c16a7c | 2400 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_start_usec)); |
308d72dc | 2401 | service_set_state(s, SERVICE_RELOAD); |
15d167f8 JW |
2402 | |
2403 | /* service_enter_reload_by_notify is never called during a reload, thus no loops are possible. */ | |
2404 | r = manager_propagate_reload(UNIT(s)->manager, UNIT(s), JOB_FAIL, &error); | |
2405 | if (r < 0) | |
2a03b9ed | 2406 | log_unit_warning(UNIT(s), "Failed to schedule propagation of reload: %s", bus_error_message(&error, r)); |
308d72dc LP |
2407 | } |
2408 | ||
034c6ed7 LP |
2409 | static void service_enter_reload(Service *s) { |
2410 | int r; | |
2411 | ||
2412 | assert(s); | |
2413 | ||
5e94833f | 2414 | service_unwatch_control_pid(s); |
95c906ae | 2415 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 2416 | |
117dcc57 ZJS |
2417 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
2418 | if (s->control_command) { | |
867b3b7d LP |
2419 | s->control_command_id = SERVICE_EXEC_RELOAD; |
2420 | ||
ecedd90f LP |
2421 | r = service_spawn(s, |
2422 | s->control_command, | |
21b2ce39 | 2423 | s->timeout_start_usec, |
f8a8f613 | 2424 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
2425 | &s->control_pid); |
2426 | if (r < 0) | |
034c6ed7 LP |
2427 | goto fail; |
2428 | ||
80876c20 LP |
2429 | service_set_state(s, SERVICE_RELOAD); |
2430 | } else | |
f42806df | 2431 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2432 | |
2433 | return; | |
2434 | ||
2435 | fail: | |
f2341e0a | 2436 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
2437 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2438 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2439 | } |
2440 | ||
f42806df | 2441 | static void service_run_next_control(Service *s) { |
36c16a7c | 2442 | usec_t timeout; |
034c6ed7 LP |
2443 | int r; |
2444 | ||
2445 | assert(s); | |
2446 | assert(s->control_command); | |
2447 | assert(s->control_command->command_next); | |
2448 | ||
34e9ba66 | 2449 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2450 | |
34e9ba66 | 2451 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2452 | service_unwatch_control_pid(s); |
2453 | ||
31cd5f63 | 2454 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
36c16a7c LP |
2455 | timeout = s->timeout_start_usec; |
2456 | else | |
2457 | timeout = s->timeout_stop_usec; | |
2458 | ||
ecedd90f LP |
2459 | r = service_spawn(s, |
2460 | s->control_command, | |
36c16a7c | 2461 | timeout, |
1703fa41 | 2462 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL| |
31cd5f63 | 2463 | (IN_SET(s->control_command_id, SERVICE_EXEC_CONDITION, SERVICE_EXEC_START_PRE, SERVICE_EXEC_STOP_POST) ? EXEC_APPLY_TTY_STDIN : 0)| |
78f93209 | 2464 | (IN_SET(s->control_command_id, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST) ? EXEC_SETENV_RESULT : 0)| |
a257c941 | 2465 | (IN_SET(s->control_command_id, SERVICE_EXEC_START_PRE, SERVICE_EXEC_START) ? EXEC_SETENV_MONITOR_RESULT : 0)| |
78f93209 | 2466 | (IN_SET(s->control_command_id, SERVICE_EXEC_START_POST, SERVICE_EXEC_RELOAD, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST) ? EXEC_CONTROL_CGROUP : 0), |
ecedd90f LP |
2467 | &s->control_pid); |
2468 | if (r < 0) | |
034c6ed7 LP |
2469 | goto fail; |
2470 | ||
2471 | return; | |
2472 | ||
2473 | fail: | |
f2341e0a | 2474 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 2475 | |
31cd5f63 | 2476 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START_POST, SERVICE_STOP)) |
f42806df | 2477 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2478 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2479 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2480 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2481 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2482 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2483 | } else |
f42806df | 2484 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2485 | } |
2486 | ||
f42806df | 2487 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2488 | pid_t pid; |
2489 | int r; | |
2490 | ||
2491 | assert(s); | |
867b3b7d LP |
2492 | assert(s->main_command); |
2493 | assert(s->main_command->command_next); | |
2494 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2495 | |
867b3b7d | 2496 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2497 | service_unwatch_main_pid(s); |
2498 | ||
ecedd90f LP |
2499 | r = service_spawn(s, |
2500 | s->main_command, | |
21b2ce39 | 2501 | s->timeout_start_usec, |
a257c941 | 2502 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG|EXEC_SETENV_MONITOR_RESULT, |
ecedd90f LP |
2503 | &pid); |
2504 | if (r < 0) | |
34e9ba66 LP |
2505 | goto fail; |
2506 | ||
5c95eb28 | 2507 | (void) service_set_main_pid(s, pid); |
34e9ba66 LP |
2508 | |
2509 | return; | |
2510 | ||
2511 | fail: | |
f2341e0a | 2512 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 2513 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2514 | } |
2515 | ||
87f0e418 LP |
2516 | static int service_start(Unit *u) { |
2517 | Service *s = SERVICE(u); | |
07299350 | 2518 | int r; |
5cb5a6ff LP |
2519 | |
2520 | assert(s); | |
2521 | ||
034c6ed7 LP |
2522 | /* We cannot fulfill this request right now, try again later |
2523 | * please! */ | |
a00973af | 2524 | if (IN_SET(s->state, |
c87700a1 | 2525 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf760801 | 2526 | SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, SERVICE_CLEANING)) |
5cb5a6ff LP |
2527 | return -EAGAIN; |
2528 | ||
034c6ed7 | 2529 | /* Already on it! */ |
31cd5f63 | 2530 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
2531 | return 0; |
2532 | ||
2e9d6c12 | 2533 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2534 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2535 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2536 | * service should be manually restarted, not started. We |
2537 | * simply return EAGAIN here, so that any start jobs stay | |
2538 | * queued, and assume that the auto restart timer will | |
2539 | * eventually trigger the restart. */ | |
2540 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2541 | return -EAGAIN; |
2e9d6c12 | 2542 | |
a00973af | 2543 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 2544 | |
4b58153d LP |
2545 | r = unit_acquire_invocation_id(u); |
2546 | if (r < 0) | |
2547 | return r; | |
2548 | ||
f42806df LP |
2549 | s->result = SERVICE_SUCCESS; |
2550 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2551 | s->main_pid_known = false; |
6dfa5494 | 2552 | s->main_pid_alien = false; |
47342320 | 2553 | s->forbid_restart = false; |
3c7416b6 | 2554 | |
a1e58e8e | 2555 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
2556 | s->status_errno = 0; |
2557 | ||
308d72dc LP |
2558 | s->notify_state = NOTIFY_UNKNOWN; |
2559 | ||
aa8c4bbf | 2560 | s->watchdog_original_usec = s->watchdog_usec; |
2787d83c | 2561 | s->watchdog_override_enable = false; |
aa8c4bbf | 2562 | s->watchdog_override_usec = USEC_INFINITY; |
2787d83c | 2563 | |
6a1d4d9f LP |
2564 | exec_command_reset_status_list_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
2565 | exec_status_reset(&s->main_exec_status); | |
2566 | ||
7a0019d3 LP |
2567 | /* This is not an automatic restart? Flush the restart counter then */ |
2568 | if (s->flush_n_restarts) { | |
2569 | s->n_restarts = 0; | |
2570 | s->flush_n_restarts = false; | |
2571 | } | |
2572 | ||
6a1d4d9f LP |
2573 | u->reset_accounting = true; |
2574 | ||
31cd5f63 | 2575 | service_enter_condition(s); |
82a2b6bb | 2576 | return 1; |
5cb5a6ff LP |
2577 | } |
2578 | ||
87f0e418 LP |
2579 | static int service_stop(Unit *u) { |
2580 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2581 | |
2582 | assert(s); | |
2583 | ||
a509f0e6 | 2584 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2585 | s->forbid_restart = true; |
034c6ed7 | 2586 | |
e537352b | 2587 | /* Already on it */ |
a00973af | 2588 | if (IN_SET(s->state, |
dc653bf4 | 2589 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf760801 | 2590 | SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) |
e537352b LP |
2591 | return 0; |
2592 | ||
f0c7b229 | 2593 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2594 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2595 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2596 | return 0; |
2597 | } | |
2598 | ||
3f6c78dc LP |
2599 | /* If there's already something running we go directly into |
2600 | * kill mode. */ | |
31cd5f63 | 2601 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD, SERVICE_STOP_WATCHDOG)) { |
f42806df | 2602 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2603 | return 0; |
2604 | } | |
5cb5a6ff | 2605 | |
4c2f5842 LP |
2606 | /* If we are currently cleaning, then abort it, brutally. */ |
2607 | if (s->state == SERVICE_CLEANING) { | |
2608 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); | |
2609 | return 0; | |
2610 | } | |
2611 | ||
a00973af | 2612 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2613 | |
f42806df | 2614 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2615 | return 1; |
5cb5a6ff LP |
2616 | } |
2617 | ||
87f0e418 LP |
2618 | static int service_reload(Unit *u) { |
2619 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2620 | |
2621 | assert(s); | |
2622 | ||
3742095b | 2623 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
034c6ed7 LP |
2624 | |
2625 | service_enter_reload(s); | |
2d018ae2 | 2626 | return 1; |
5cb5a6ff LP |
2627 | } |
2628 | ||
44a6b1b6 | 2629 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2630 | Service *s = SERVICE(u); |
034c6ed7 LP |
2631 | |
2632 | assert(s); | |
2633 | ||
2634 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2635 | } | |
2636 | ||
e266c068 MS |
2637 | static unsigned service_exec_command_index(Unit *u, ServiceExecCommand id, ExecCommand *current) { |
2638 | Service *s = SERVICE(u); | |
2639 | unsigned idx = 0; | |
2640 | ExecCommand *first, *c; | |
2641 | ||
2642 | assert(s); | |
5b99bd5f LP |
2643 | assert(id >= 0); |
2644 | assert(id < _SERVICE_EXEC_COMMAND_MAX); | |
e266c068 MS |
2645 | |
2646 | first = s->exec_command[id]; | |
2647 | ||
2648 | /* Figure out where we are in the list by walking back to the beginning */ | |
2649 | for (c = current; c != first; c = c->command_prev) | |
2650 | idx++; | |
2651 | ||
2652 | return idx; | |
2653 | } | |
2654 | ||
2655 | static int service_serialize_exec_command(Unit *u, FILE *f, ExecCommand *command) { | |
d68c645b | 2656 | _cleanup_free_ char *args = NULL, *p = NULL; |
e266c068 | 2657 | Service *s = SERVICE(u); |
d68c645b | 2658 | const char *type, *key; |
e266c068 | 2659 | ServiceExecCommand id; |
319a4f4b | 2660 | size_t length = 0; |
e266c068 | 2661 | unsigned idx; |
e266c068 MS |
2662 | |
2663 | assert(s); | |
2664 | assert(f); | |
2665 | ||
2666 | if (!command) | |
2667 | return 0; | |
2668 | ||
2669 | if (command == s->control_command) { | |
2670 | type = "control"; | |
2671 | id = s->control_command_id; | |
2672 | } else { | |
2673 | type = "main"; | |
2674 | id = SERVICE_EXEC_START; | |
2675 | } | |
2676 | ||
2677 | idx = service_exec_command_index(u, id, command); | |
2678 | ||
2679 | STRV_FOREACH(arg, command->argv) { | |
e266c068 | 2680 | _cleanup_free_ char *e = NULL; |
d68c645b | 2681 | size_t n; |
e266c068 | 2682 | |
d68c645b | 2683 | e = cescape(*arg); |
e266c068 | 2684 | if (!e) |
d68c645b | 2685 | return log_oom(); |
e266c068 MS |
2686 | |
2687 | n = strlen(e); | |
319a4f4b | 2688 | if (!GREEDY_REALLOC(args, length + 2 + n + 2)) |
d68c645b | 2689 | return log_oom(); |
e266c068 MS |
2690 | |
2691 | if (length > 0) | |
2692 | args[length++] = ' '; | |
2693 | ||
334c0979 | 2694 | args[length++] = '"'; |
e266c068 MS |
2695 | memcpy(args + length, e, n); |
2696 | length += n; | |
334c0979 | 2697 | args[length++] = '"'; |
e266c068 MS |
2698 | } |
2699 | ||
319a4f4b | 2700 | if (!GREEDY_REALLOC(args, length + 1)) |
d68c645b LP |
2701 | return log_oom(); |
2702 | ||
e266c068 MS |
2703 | args[length++] = 0; |
2704 | ||
d68c645b | 2705 | p = cescape(command->path); |
e266c068 | 2706 | if (!p) |
5b99bd5f | 2707 | return log_oom(); |
e266c068 | 2708 | |
d68c645b | 2709 | key = strjoina(type, "-command"); |
5b99bd5f LP |
2710 | (void) serialize_item_format(f, key, "%s %u %s %s", service_exec_command_to_string(id), idx, p, args); |
2711 | ||
2712 | return 0; | |
e266c068 MS |
2713 | } |
2714 | ||
a16e1123 LP |
2715 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2716 | Service *s = SERVICE(u); | |
a34ceba6 | 2717 | int r; |
a16e1123 LP |
2718 | |
2719 | assert(u); | |
2720 | assert(f); | |
2721 | assert(fds); | |
2722 | ||
d68c645b LP |
2723 | (void) serialize_item(f, "state", service_state_to_string(s->state)); |
2724 | (void) serialize_item(f, "result", service_result_to_string(s->result)); | |
2725 | (void) serialize_item(f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2726 | |
2727 | if (s->control_pid > 0) | |
d68c645b | 2728 | (void) serialize_item_format(f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2729 | |
5925dd3c | 2730 | if (s->main_pid_known && s->main_pid > 0) |
d68c645b | 2731 | (void) serialize_item_format(f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 | 2732 | |
d68c645b LP |
2733 | (void) serialize_bool(f, "main-pid-known", s->main_pid_known); |
2734 | (void) serialize_bool(f, "bus-name-good", s->bus_name_good); | |
2735 | (void) serialize_bool(f, "bus-name-owner", s->bus_name_owner); | |
a16e1123 | 2736 | |
d68c645b LP |
2737 | (void) serialize_item_format(f, "n-restarts", "%u", s->n_restarts); |
2738 | (void) serialize_bool(f, "flush-n-restarts", s->flush_n_restarts); | |
7a0019d3 | 2739 | |
d68c645b | 2740 | r = serialize_item_escaped(f, "status-text", s->status_text); |
a34ceba6 LP |
2741 | if (r < 0) |
2742 | return r; | |
3a2776bc | 2743 | |
e266c068 MS |
2744 | service_serialize_exec_command(u, f, s->control_command); |
2745 | service_serialize_exec_command(u, f, s->main_command); | |
a16e1123 | 2746 | |
d68c645b | 2747 | r = serialize_fd(f, fds, "stdin-fd", s->stdin_fd); |
a34ceba6 LP |
2748 | if (r < 0) |
2749 | return r; | |
d68c645b | 2750 | r = serialize_fd(f, fds, "stdout-fd", s->stdout_fd); |
a34ceba6 LP |
2751 | if (r < 0) |
2752 | return r; | |
d68c645b | 2753 | r = serialize_fd(f, fds, "stderr-fd", s->stderr_fd); |
a34ceba6 LP |
2754 | if (r < 0) |
2755 | return r; | |
e44da745 | 2756 | |
5686391b | 2757 | if (s->exec_fd_event_source) { |
d68c645b | 2758 | r = serialize_fd(f, fds, "exec-fd", sd_event_source_get_io_fd(s->exec_fd_event_source)); |
5686391b LP |
2759 | if (r < 0) |
2760 | return r; | |
d68c645b LP |
2761 | |
2762 | (void) serialize_bool(f, "exec-fd-hot", s->exec_fd_hot); | |
5686391b LP |
2763 | } |
2764 | ||
9dfb64f8 | 2765 | if (UNIT_ISSET(s->accept_socket)) { |
d68c645b | 2766 | r = serialize_item(f, "accept-socket", UNIT_DEREF(s->accept_socket)->id); |
9dfb64f8 ZJS |
2767 | if (r < 0) |
2768 | return r; | |
2769 | } | |
2770 | ||
d68c645b | 2771 | r = serialize_fd(f, fds, "socket-fd", s->socket_fd); |
a34ceba6 LP |
2772 | if (r < 0) |
2773 | return r; | |
e44da745 | 2774 | |
2339fc93 | 2775 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2776 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2777 | int copy; |
2778 | ||
2779 | copy = fdset_put_dup(fds, fs->fd); | |
2780 | if (copy < 0) | |
d68c645b | 2781 | return log_error_errno(copy, "Failed to copy file descriptor for serialization: %m"); |
2339fc93 | 2782 | |
8dd4c05b | 2783 | c = cescape(fs->fdname); |
d68c645b LP |
2784 | if (!c) |
2785 | return log_oom(); | |
8dd4c05b | 2786 | |
30520492 | 2787 | (void) serialize_item_format(f, "fd-store-fd", "%i \"%s\" %i", copy, c, fs->do_poll); |
2339fc93 LP |
2788 | } |
2789 | ||
ecdbca40 | 2790 | if (s->main_exec_status.pid > 0) { |
d68c645b LP |
2791 | (void) serialize_item_format(f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2792 | (void) serialize_dual_timestamp(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2793 | (void) serialize_dual_timestamp(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2794 | |
799fd0fd | 2795 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
d68c645b LP |
2796 | (void) serialize_item_format(f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2797 | (void) serialize_item_format(f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2798 | } |
2799 | } | |
f06db334 | 2800 | |
d68c645b LP |
2801 | (void) serialize_dual_timestamp(f, "watchdog-timestamp", &s->watchdog_timestamp); |
2802 | (void) serialize_bool(f, "forbid-restart", s->forbid_restart); | |
6aca9a58 | 2803 | |
2787d83c | 2804 | if (s->watchdog_override_enable) |
d68c645b | 2805 | (void) serialize_item_format(f, "watchdog-override-usec", USEC_FMT, s->watchdog_override_usec); |
2787d83c | 2806 | |
aa8c4bbf LP |
2807 | if (s->watchdog_original_usec != USEC_INFINITY) |
2808 | (void) serialize_item_format(f, "watchdog-original-usec", USEC_FMT, s->watchdog_original_usec); | |
2809 | ||
a16e1123 LP |
2810 | return 0; |
2811 | } | |
2812 | ||
35243b77 | 2813 | int service_deserialize_exec_command( |
5b99bd5f LP |
2814 | Unit *u, |
2815 | const char *key, | |
2816 | const char *value) { | |
2817 | ||
e266c068 MS |
2818 | Service *s = SERVICE(u); |
2819 | int r; | |
2820 | unsigned idx = 0, i; | |
2821 | bool control, found = false; | |
2822 | ServiceExecCommand id = _SERVICE_EXEC_COMMAND_INVALID; | |
2823 | ExecCommand *command = NULL; | |
6eeec374 | 2824 | _cleanup_free_ char *path = NULL; |
e266c068 MS |
2825 | _cleanup_strv_free_ char **argv = NULL; |
2826 | ||
2827 | enum ExecCommandState { | |
2828 | STATE_EXEC_COMMAND_TYPE, | |
2829 | STATE_EXEC_COMMAND_INDEX, | |
2830 | STATE_EXEC_COMMAND_PATH, | |
2831 | STATE_EXEC_COMMAND_ARGS, | |
2832 | _STATE_EXEC_COMMAND_MAX, | |
2d93c20e | 2833 | _STATE_EXEC_COMMAND_INVALID = -EINVAL, |
e266c068 MS |
2834 | } state; |
2835 | ||
2836 | assert(s); | |
2837 | assert(key); | |
2838 | assert(value); | |
2839 | ||
2840 | control = streq(key, "control-command"); | |
2841 | ||
2842 | state = STATE_EXEC_COMMAND_TYPE; | |
2843 | ||
2844 | for (;;) { | |
2845 | _cleanup_free_ char *arg = NULL; | |
2846 | ||
334c0979 | 2847 | r = extract_first_word(&value, &arg, NULL, EXTRACT_CUNESCAPE | EXTRACT_UNQUOTE); |
efa3f34e LP |
2848 | if (r < 0) |
2849 | return r; | |
e266c068 MS |
2850 | if (r == 0) |
2851 | break; | |
e266c068 MS |
2852 | |
2853 | switch (state) { | |
2854 | case STATE_EXEC_COMMAND_TYPE: | |
2855 | id = service_exec_command_from_string(arg); | |
2856 | if (id < 0) | |
7211c853 | 2857 | return id; |
e266c068 MS |
2858 | |
2859 | state = STATE_EXEC_COMMAND_INDEX; | |
2860 | break; | |
2861 | case STATE_EXEC_COMMAND_INDEX: | |
2862 | r = safe_atou(arg, &idx); | |
2863 | if (r < 0) | |
7211c853 | 2864 | return r; |
e266c068 MS |
2865 | |
2866 | state = STATE_EXEC_COMMAND_PATH; | |
2867 | break; | |
2868 | case STATE_EXEC_COMMAND_PATH: | |
ae2a15bc | 2869 | path = TAKE_PTR(arg); |
e266c068 | 2870 | state = STATE_EXEC_COMMAND_ARGS; |
e266c068 MS |
2871 | break; |
2872 | case STATE_EXEC_COMMAND_ARGS: | |
2873 | r = strv_extend(&argv, arg); | |
2874 | if (r < 0) | |
2875 | return -ENOMEM; | |
2876 | break; | |
2877 | default: | |
04499a70 | 2878 | assert_not_reached(); |
e266c068 MS |
2879 | } |
2880 | } | |
2881 | ||
2882 | if (state != STATE_EXEC_COMMAND_ARGS) | |
2883 | return -EINVAL; | |
90204792 ZJS |
2884 | if (strv_isempty(argv)) |
2885 | return -EINVAL; /* At least argv[0] must be always present. */ | |
e266c068 MS |
2886 | |
2887 | /* Let's check whether exec command on given offset matches data that we just deserialized */ | |
2888 | for (command = s->exec_command[id], i = 0; command; command = command->command_next, i++) { | |
2889 | if (i != idx) | |
2890 | continue; | |
2891 | ||
2892 | found = strv_equal(argv, command->argv) && streq(command->path, path); | |
2893 | break; | |
2894 | } | |
2895 | ||
2896 | if (!found) { | |
2897 | /* Command at the index we serialized is different, let's look for command that exactly | |
2898 | * matches but is on different index. If there is no such command we will not resume execution. */ | |
2899 | for (command = s->exec_command[id]; command; command = command->command_next) | |
2900 | if (strv_equal(command->argv, argv) && streq(command->path, path)) | |
2901 | break; | |
2902 | } | |
2903 | ||
e9da62b1 | 2904 | if (command && control) { |
e266c068 | 2905 | s->control_command = command; |
e9da62b1 LP |
2906 | s->control_command_id = id; |
2907 | } else if (command) | |
e266c068 MS |
2908 | s->main_command = command; |
2909 | else | |
2910 | log_unit_warning(u, "Current command vanished from the unit file, execution of the command list won't be resumed."); | |
2911 | ||
2912 | return 0; | |
2913 | } | |
2914 | ||
a16e1123 LP |
2915 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { |
2916 | Service *s = SERVICE(u); | |
2339fc93 | 2917 | int r; |
a16e1123 LP |
2918 | |
2919 | assert(u); | |
2920 | assert(key); | |
2921 | assert(value); | |
2922 | assert(fds); | |
2923 | ||
2924 | if (streq(key, "state")) { | |
2925 | ServiceState state; | |
2926 | ||
117dcc57 ZJS |
2927 | state = service_state_from_string(value); |
2928 | if (state < 0) | |
f2341e0a | 2929 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2930 | else |
2931 | s->deserialized_state = state; | |
f42806df LP |
2932 | } else if (streq(key, "result")) { |
2933 | ServiceResult f; | |
2934 | ||
2935 | f = service_result_from_string(value); | |
2936 | if (f < 0) | |
f2341e0a | 2937 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2938 | else if (f != SERVICE_SUCCESS) |
2939 | s->result = f; | |
2940 | ||
2941 | } else if (streq(key, "reload-result")) { | |
2942 | ServiceResult f; | |
2943 | ||
2944 | f = service_result_from_string(value); | |
2945 | if (f < 0) | |
f2341e0a | 2946 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2947 | else if (f != SERVICE_SUCCESS) |
2948 | s->reload_result = f; | |
a16e1123 | 2949 | |
a16e1123 | 2950 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2951 | pid_t pid; |
a16e1123 | 2952 | |
e364ad06 | 2953 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2954 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2955 | else |
e55224ca | 2956 | s->control_pid = pid; |
a16e1123 | 2957 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2958 | pid_t pid; |
a16e1123 | 2959 | |
e364ad06 | 2960 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2961 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
eabd3e56 LP |
2962 | else |
2963 | (void) service_set_main_pid(s, pid); | |
a16e1123 LP |
2964 | } else if (streq(key, "main-pid-known")) { |
2965 | int b; | |
2966 | ||
117dcc57 ZJS |
2967 | b = parse_boolean(value); |
2968 | if (b < 0) | |
f2341e0a | 2969 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2970 | else |
2971 | s->main_pid_known = b; | |
de1d4f9b WF |
2972 | } else if (streq(key, "bus-name-good")) { |
2973 | int b; | |
2974 | ||
2975 | b = parse_boolean(value); | |
2976 | if (b < 0) | |
2977 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2978 | else | |
2979 | s->bus_name_good = b; | |
d8ccf5fd DM |
2980 | } else if (streq(key, "bus-name-owner")) { |
2981 | r = free_and_strdup(&s->bus_name_owner, value); | |
2982 | if (r < 0) | |
2983 | log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value); | |
3a2776bc LP |
2984 | } else if (streq(key, "status-text")) { |
2985 | char *t; | |
e437538f | 2986 | ssize_t l; |
3a2776bc | 2987 | |
e437538f ZJS |
2988 | l = cunescape(value, 0, &t); |
2989 | if (l < 0) | |
2990 | log_unit_debug_errno(u, l, "Failed to unescape status text '%s': %m", value); | |
efa3f34e LP |
2991 | else |
2992 | free_and_replace(s->status_text, t); | |
3a2776bc | 2993 | |
9dfb64f8 ZJS |
2994 | } else if (streq(key, "accept-socket")) { |
2995 | Unit *socket; | |
2996 | ||
2997 | r = manager_load_unit(u->manager, value, NULL, NULL, &socket); | |
2998 | if (r < 0) | |
5e1ee764 | 2999 | log_unit_debug_errno(u, r, "Failed to load accept-socket unit '%s': %m", value); |
9dfb64f8 | 3000 | else { |
7f7d01ed | 3001 | unit_ref_set(&s->accept_socket, u, socket); |
9dfb64f8 ZJS |
3002 | SOCKET(socket)->n_connections++; |
3003 | } | |
3004 | ||
a16e1123 LP |
3005 | } else if (streq(key, "socket-fd")) { |
3006 | int fd; | |
3007 | ||
3008 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 3009 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 3010 | else { |
574634bc | 3011 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
3012 | s->socket_fd = fdset_remove(fds, fd); |
3013 | } | |
2339fc93 | 3014 | } else if (streq(key, "fd-store-fd")) { |
30520492 | 3015 | _cleanup_free_ char *fdv = NULL, *fdn = NULL, *fdp = NULL; |
2339fc93 | 3016 | int fd; |
30520492 | 3017 | int do_poll; |
2339fc93 | 3018 | |
30520492 KL |
3019 | r = extract_first_word(&value, &fdv, NULL, 0); |
3020 | if (r <= 0 || safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) { | |
f2341e0a | 3021 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
30520492 KL |
3022 | return 0; |
3023 | } | |
8dd4c05b | 3024 | |
30520492 KL |
3025 | r = extract_first_word(&value, &fdn, NULL, EXTRACT_CUNESCAPE | EXTRACT_UNQUOTE); |
3026 | if (r <= 0) { | |
95599cac | 3027 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
30520492 KL |
3028 | return 0; |
3029 | } | |
8dd4c05b | 3030 | |
30520492 KL |
3031 | r = extract_first_word(&value, &fdp, NULL, 0); |
3032 | if (r == 0) { | |
3033 | /* If the value is not present, we assume the default */ | |
3034 | do_poll = 1; | |
3035 | } else if (r < 0 || safe_atoi(fdp, &do_poll) < 0) { | |
3036 | log_unit_debug_errno(u, r, "Failed to parse fd-store-fd value \"%s\": %m", value); | |
3037 | return 0; | |
2339fc93 LP |
3038 | } |
3039 | ||
30520492 KL |
3040 | r = service_add_fd_store(s, fd, fdn, do_poll); |
3041 | if (r < 0) | |
3042 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); | |
3043 | else | |
3044 | fdset_remove(fds, fd); | |
ecdbca40 LP |
3045 | } else if (streq(key, "main-exec-status-pid")) { |
3046 | pid_t pid; | |
3047 | ||
e364ad06 | 3048 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 3049 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
3050 | else |
3051 | s->main_exec_status.pid = pid; | |
3052 | } else if (streq(key, "main-exec-status-code")) { | |
3053 | int i; | |
3054 | ||
e364ad06 | 3055 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 3056 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
3057 | else |
3058 | s->main_exec_status.code = i; | |
3059 | } else if (streq(key, "main-exec-status-status")) { | |
3060 | int i; | |
3061 | ||
e364ad06 | 3062 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 3063 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
3064 | else |
3065 | s->main_exec_status.status = i; | |
799fd0fd | 3066 | } else if (streq(key, "main-exec-status-start")) |
d68c645b | 3067 | deserialize_dual_timestamp(value, &s->main_exec_status.start_timestamp); |
799fd0fd | 3068 | else if (streq(key, "main-exec-status-exit")) |
d68c645b | 3069 | deserialize_dual_timestamp(value, &s->main_exec_status.exit_timestamp); |
a6927d7f | 3070 | else if (streq(key, "watchdog-timestamp")) |
d68c645b | 3071 | deserialize_dual_timestamp(value, &s->watchdog_timestamp); |
613b411c | 3072 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
3073 | int b; |
3074 | ||
3075 | b = parse_boolean(value); | |
3076 | if (b < 0) | |
f2341e0a | 3077 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
3078 | else |
3079 | s->forbid_restart = b; | |
a34ceba6 LP |
3080 | } else if (streq(key, "stdin-fd")) { |
3081 | int fd; | |
3082 | ||
3083 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3084 | log_unit_debug(u, "Failed to parse stdin-fd value: %s", value); | |
3085 | else { | |
3086 | asynchronous_close(s->stdin_fd); | |
3087 | s->stdin_fd = fdset_remove(fds, fd); | |
1e22b5cd | 3088 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
3089 | } |
3090 | } else if (streq(key, "stdout-fd")) { | |
3091 | int fd; | |
3092 | ||
3093 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3094 | log_unit_debug(u, "Failed to parse stdout-fd value: %s", value); | |
3095 | else { | |
3096 | asynchronous_close(s->stdout_fd); | |
3097 | s->stdout_fd = fdset_remove(fds, fd); | |
1e22b5cd | 3098 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
3099 | } |
3100 | } else if (streq(key, "stderr-fd")) { | |
3101 | int fd; | |
3102 | ||
3103 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3104 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
3105 | else { | |
3106 | asynchronous_close(s->stderr_fd); | |
3107 | s->stderr_fd = fdset_remove(fds, fd); | |
1e22b5cd | 3108 | s->exec_context.stdio_as_fds = true; |
a34ceba6 | 3109 | } |
5686391b LP |
3110 | } else if (streq(key, "exec-fd")) { |
3111 | int fd; | |
3112 | ||
3113 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3114 | log_unit_debug(u, "Failed to parse exec-fd value: %s", value); | |
3115 | else { | |
5dcadb4c | 3116 | s->exec_fd_event_source = sd_event_source_disable_unref(s->exec_fd_event_source); |
5686391b LP |
3117 | |
3118 | fd = fdset_remove(fds, fd); | |
3119 | if (service_allocate_exec_fd_event_source(s, fd, &s->exec_fd_event_source) < 0) | |
3120 | safe_close(fd); | |
3121 | } | |
2787d83c | 3122 | } else if (streq(key, "watchdog-override-usec")) { |
d68c645b | 3123 | if (deserialize_usec(value, &s->watchdog_override_usec) < 0) |
2787d83c | 3124 | log_unit_debug(u, "Failed to parse watchdog_override_usec value: %s", value); |
d68c645b | 3125 | else |
2787d83c | 3126 | s->watchdog_override_enable = true; |
d68c645b | 3127 | |
aa8c4bbf LP |
3128 | } else if (streq(key, "watchdog-original-usec")) { |
3129 | if (deserialize_usec(value, &s->watchdog_original_usec) < 0) | |
3130 | log_unit_debug(u, "Failed to parse watchdog_original_usec value: %s", value); | |
3131 | ||
e266c068 MS |
3132 | } else if (STR_IN_SET(key, "main-command", "control-command")) { |
3133 | r = service_deserialize_exec_command(u, key, value); | |
3134 | if (r < 0) | |
3135 | log_unit_debug_errno(u, r, "Failed to parse serialized command \"%s\": %m", value); | |
7a0019d3 LP |
3136 | |
3137 | } else if (streq(key, "n-restarts")) { | |
3138 | r = safe_atou(value, &s->n_restarts); | |
3139 | if (r < 0) | |
3140 | log_unit_debug_errno(u, r, "Failed to parse serialized restart counter '%s': %m", value); | |
3141 | ||
3142 | } else if (streq(key, "flush-n-restarts")) { | |
3143 | r = parse_boolean(value); | |
3144 | if (r < 0) | |
3145 | log_unit_debug_errno(u, r, "Failed to parse serialized flush restart counter setting '%s': %m", value); | |
3146 | else | |
3147 | s->flush_n_restarts = r; | |
c17ec25e | 3148 | } else |
f2341e0a | 3149 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
3150 | |
3151 | return 0; | |
3152 | } | |
3153 | ||
44a6b1b6 | 3154 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
3155 | const UnitActiveState *table; |
3156 | ||
87f0e418 | 3157 | assert(u); |
5cb5a6ff | 3158 | |
e056b01d LP |
3159 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
3160 | ||
3161 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
3162 | } |
3163 | ||
10a94420 LP |
3164 | static const char *service_sub_state_to_string(Unit *u) { |
3165 | assert(u); | |
3166 | ||
3167 | return service_state_to_string(SERVICE(u)->state); | |
3168 | } | |
3169 | ||
f2f725e5 | 3170 | static bool service_may_gc(Unit *u) { |
701cc384 LP |
3171 | Service *s = SERVICE(u); |
3172 | ||
3173 | assert(s); | |
3174 | ||
e98b2fbb | 3175 | /* Never clean up services that still have a process around, even if the service is formally dead. Note that |
f2f725e5 | 3176 | * unit_may_gc() already checked our cgroup for us, we just check our two additional PIDs, too, in case they |
e98b2fbb LP |
3177 | * have moved outside of the cgroup. */ |
3178 | ||
3179 | if (main_pid_good(s) > 0 || | |
6d55002a | 3180 | control_pid_good(s) > 0) |
f2f725e5 | 3181 | return false; |
6d55002a | 3182 | |
f2f725e5 | 3183 | return true; |
6d55002a LP |
3184 | } |
3185 | ||
3a111838 MS |
3186 | static int service_retry_pid_file(Service *s) { |
3187 | int r; | |
3188 | ||
3189 | assert(s->pid_file); | |
3742095b | 3190 | assert(IN_SET(s->state, SERVICE_START, SERVICE_START_POST)); |
3a111838 MS |
3191 | |
3192 | r = service_load_pid_file(s, false); | |
3193 | if (r < 0) | |
3194 | return r; | |
3195 | ||
3196 | service_unwatch_pid_file(s); | |
3197 | ||
f42806df | 3198 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
3199 | return 0; |
3200 | } | |
3201 | ||
3202 | static int service_watch_pid_file(Service *s) { | |
3203 | int r; | |
3204 | ||
f2341e0a | 3205 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 3206 | |
5686391b | 3207 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_inotify_io); |
3a111838 MS |
3208 | if (r < 0) |
3209 | goto fail; | |
3210 | ||
3211 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 3212 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
3213 | service_retry_pid_file(s); |
3214 | ||
3215 | return 0; | |
3216 | fail: | |
f2341e0a | 3217 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
3218 | service_unwatch_pid_file(s); |
3219 | return r; | |
3220 | } | |
3221 | ||
3222 | static int service_demand_pid_file(Service *s) { | |
3223 | PathSpec *ps; | |
3224 | ||
3225 | assert(s->pid_file); | |
3226 | assert(!s->pid_file_pathspec); | |
3227 | ||
3228 | ps = new0(PathSpec, 1); | |
3229 | if (!ps) | |
3230 | return -ENOMEM; | |
3231 | ||
718db961 | 3232 | ps->unit = UNIT(s); |
3a111838 MS |
3233 | ps->path = strdup(s->pid_file); |
3234 | if (!ps->path) { | |
3235 | free(ps); | |
3236 | return -ENOMEM; | |
3237 | } | |
3238 | ||
4ff361cc | 3239 | path_simplify(ps->path); |
3a111838 MS |
3240 | |
3241 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
3242 | * keep their PID file open all the time. */ | |
3243 | ps->type = PATH_MODIFIED; | |
3244 | ps->inotify_fd = -1; | |
3245 | ||
3246 | s->pid_file_pathspec = ps; | |
3247 | ||
3248 | return service_watch_pid_file(s); | |
3249 | } | |
3250 | ||
5686391b | 3251 | static int service_dispatch_inotify_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
99534007 | 3252 | PathSpec *p = ASSERT_PTR(userdata); |
e14c2802 LP |
3253 | Service *s; |
3254 | ||
e14c2802 | 3255 | s = SERVICE(p->unit); |
3a111838 MS |
3256 | |
3257 | assert(s); | |
3258 | assert(fd >= 0); | |
3742095b | 3259 | assert(IN_SET(s->state, SERVICE_START, SERVICE_START_POST)); |
3a111838 | 3260 | assert(s->pid_file_pathspec); |
57020a3a | 3261 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 3262 | |
f2341e0a | 3263 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 3264 | |
e14c2802 | 3265 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
3266 | goto fail; |
3267 | ||
3268 | if (service_retry_pid_file(s) == 0) | |
718db961 | 3269 | return 0; |
3a111838 MS |
3270 | |
3271 | if (service_watch_pid_file(s) < 0) | |
3272 | goto fail; | |
3273 | ||
718db961 LP |
3274 | return 0; |
3275 | ||
3a111838 MS |
3276 | fail: |
3277 | service_unwatch_pid_file(s); | |
f42806df | 3278 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 3279 | return 0; |
3a111838 MS |
3280 | } |
3281 | ||
5686391b LP |
3282 | static int service_dispatch_exec_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
3283 | Service *s = SERVICE(userdata); | |
3284 | ||
3285 | assert(s); | |
3286 | ||
3287 | log_unit_debug(UNIT(s), "got exec-fd event"); | |
3288 | ||
3289 | /* If Type=exec is set, we'll consider a service started successfully the instant we invoked execve() | |
3290 | * successfully for it. We implement this through a pipe() towards the child, which the kernel automatically | |
3291 | * closes for us due to O_CLOEXEC on execve() in the child, which then triggers EOF on the pipe in the | |
3292 | * parent. We need to be careful however, as there are other reasons that we might cause the child's side of | |
3293 | * the pipe to be closed (for example, a simple exit()). To deal with that we'll ignore EOFs on the pipe unless | |
3294 | * the child signalled us first that it is about to call the execve(). It does so by sending us a simple | |
3295 | * non-zero byte via the pipe. We also provide the child with a way to inform us in case execve() failed: if it | |
3296 | * sends a zero byte we'll ignore POLLHUP on the fd again. */ | |
3297 | ||
3298 | for (;;) { | |
3299 | uint8_t x; | |
3300 | ssize_t n; | |
3301 | ||
3302 | n = read(fd, &x, sizeof(x)); | |
3303 | if (n < 0) { | |
3304 | if (errno == EAGAIN) /* O_NONBLOCK in effect → everything queued has now been processed. */ | |
3305 | return 0; | |
3306 | ||
3307 | return log_unit_error_errno(UNIT(s), errno, "Failed to read from exec_fd: %m"); | |
3308 | } | |
3309 | if (n == 0) { /* EOF → the event we are waiting for */ | |
3310 | ||
5dcadb4c | 3311 | s->exec_fd_event_source = sd_event_source_disable_unref(s->exec_fd_event_source); |
5686391b LP |
3312 | |
3313 | if (s->exec_fd_hot) { /* Did the child tell us to expect EOF now? */ | |
3314 | log_unit_debug(UNIT(s), "Got EOF on exec-fd"); | |
3315 | ||
3316 | s->exec_fd_hot = false; | |
3317 | ||
3318 | /* Nice! This is what we have been waiting for. Transition to next state. */ | |
3319 | if (s->type == SERVICE_EXEC && s->state == SERVICE_START) | |
3320 | service_enter_start_post(s); | |
3321 | } else | |
3322 | log_unit_debug(UNIT(s), "Got EOF on exec-fd while it was disabled, ignoring."); | |
3323 | ||
3324 | return 0; | |
3325 | } | |
3326 | ||
3327 | /* A byte was read → this turns on/off the exec fd logic */ | |
3328 | assert(n == sizeof(x)); | |
3329 | s->exec_fd_hot = x; | |
3330 | } | |
3331 | ||
3332 | return 0; | |
3333 | } | |
3334 | ||
a911bb9a LP |
3335 | static void service_notify_cgroup_empty_event(Unit *u) { |
3336 | Service *s = SERVICE(u); | |
3337 | ||
3338 | assert(u); | |
3339 | ||
a5b5aece | 3340 | log_unit_debug(u, "Control group is empty."); |
a911bb9a LP |
3341 | |
3342 | switch (s->state) { | |
3343 | ||
3344 | /* Waiting for SIGCHLD is usually more interesting, | |
3345 | * because it includes return codes/signals. Which is | |
3346 | * why we ignore the cgroup events for most cases, | |
3347 | * except when we don't know pid which to expect the | |
3348 | * SIGCHLD for. */ | |
3349 | ||
3350 | case SERVICE_START: | |
3c751b1b LP |
3351 | if (s->type == SERVICE_NOTIFY && |
3352 | main_pid_good(s) == 0 && | |
3353 | control_pid_good(s) == 0) { | |
3d474ef7 | 3354 | /* No chance of getting a ready notification anymore */ |
c3fda31d | 3355 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
71e529fc JW |
3356 | break; |
3357 | } | |
3358 | ||
596e4470 HC |
3359 | if (s->exit_type == SERVICE_EXIT_CGROUP && main_pid_good(s) <= 0) |
3360 | service_enter_start_post(s); | |
3361 | ||
4831981d | 3362 | _fallthrough_; |
71e529fc | 3363 | case SERVICE_START_POST: |
3c751b1b LP |
3364 | if (s->pid_file_pathspec && |
3365 | main_pid_good(s) == 0 && | |
3366 | control_pid_good(s) == 0) { | |
3367 | ||
3d474ef7 | 3368 | /* Give up hoping for the daemon to write its PID file */ |
f2341e0a | 3369 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 3370 | |
a911bb9a LP |
3371 | service_unwatch_pid_file(s); |
3372 | if (s->state == SERVICE_START) | |
c3fda31d | 3373 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a | 3374 | else |
c35755fb | 3375 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a LP |
3376 | } |
3377 | break; | |
3378 | ||
3379 | case SERVICE_RUNNING: | |
3380 | /* service_enter_running() will figure out what to do */ | |
3381 | service_enter_running(s, SERVICE_SUCCESS); | |
3382 | break; | |
3383 | ||
c87700a1 | 3384 | case SERVICE_STOP_WATCHDOG: |
a911bb9a LP |
3385 | case SERVICE_STOP_SIGTERM: |
3386 | case SERVICE_STOP_SIGKILL: | |
3387 | ||
b13ddbbc | 3388 | if (main_pid_good(s) <= 0 && control_pid_good(s) <= 0) |
a911bb9a LP |
3389 | service_enter_stop_post(s, SERVICE_SUCCESS); |
3390 | ||
3391 | break; | |
3392 | ||
3393 | case SERVICE_STOP_POST: | |
bf760801 | 3394 | case SERVICE_FINAL_WATCHDOG: |
a911bb9a LP |
3395 | case SERVICE_FINAL_SIGTERM: |
3396 | case SERVICE_FINAL_SIGKILL: | |
b13ddbbc | 3397 | if (main_pid_good(s) <= 0 && control_pid_good(s) <= 0) |
a911bb9a LP |
3398 | service_enter_dead(s, SERVICE_SUCCESS, true); |
3399 | ||
3400 | break; | |
3401 | ||
e08dabfe AZ |
3402 | /* If the cgroup empty notification comes when the unit is not active, we must have failed to clean |
3403 | * up the cgroup earlier and should do it now. */ | |
3404 | case SERVICE_DEAD: | |
3405 | case SERVICE_FAILED: | |
3406 | unit_prune_cgroup(u); | |
3407 | break; | |
3408 | ||
a911bb9a LP |
3409 | default: |
3410 | ; | |
3411 | } | |
3412 | } | |
3413 | ||
38c41427 | 3414 | static void service_notify_cgroup_oom_event(Unit *u, bool managed_oom) { |
afcfaa69 LP |
3415 | Service *s = SERVICE(u); |
3416 | ||
38c41427 NK |
3417 | if (managed_oom) |
3418 | log_unit_debug(u, "Process(es) of control group were killed by systemd-oomd."); | |
3419 | else | |
3420 | log_unit_debug(u, "Process of control group was killed by the OOM killer."); | |
afcfaa69 LP |
3421 | |
3422 | if (s->oom_policy == OOM_CONTINUE) | |
3423 | return; | |
3424 | ||
3425 | switch (s->state) { | |
3426 | ||
31cd5f63 | 3427 | case SERVICE_CONDITION: |
afcfaa69 LP |
3428 | case SERVICE_START_PRE: |
3429 | case SERVICE_START: | |
3430 | case SERVICE_START_POST: | |
3431 | case SERVICE_STOP: | |
3432 | if (s->oom_policy == OOM_STOP) | |
3433 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_OOM_KILL); | |
3434 | else if (s->oom_policy == OOM_KILL) | |
3435 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3436 | ||
3437 | break; | |
3438 | ||
3439 | case SERVICE_EXITED: | |
3440 | case SERVICE_RUNNING: | |
3441 | if (s->oom_policy == OOM_STOP) | |
3442 | service_enter_stop(s, SERVICE_FAILURE_OOM_KILL); | |
3443 | else if (s->oom_policy == OOM_KILL) | |
3444 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3445 | ||
3446 | break; | |
3447 | ||
3448 | case SERVICE_STOP_WATCHDOG: | |
3449 | case SERVICE_STOP_SIGTERM: | |
3450 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3451 | break; | |
3452 | ||
3453 | case SERVICE_STOP_SIGKILL: | |
3454 | case SERVICE_FINAL_SIGKILL: | |
3455 | if (s->result == SERVICE_SUCCESS) | |
3456 | s->result = SERVICE_FAILURE_OOM_KILL; | |
3457 | break; | |
3458 | ||
3459 | case SERVICE_STOP_POST: | |
3460 | case SERVICE_FINAL_SIGTERM: | |
3461 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3462 | break; | |
3463 | ||
3464 | default: | |
3465 | ; | |
3466 | } | |
3467 | } | |
3468 | ||
87f0e418 | 3469 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
5cdabc8d | 3470 | bool notify_dbus = true; |
87f0e418 | 3471 | Service *s = SERVICE(u); |
f42806df | 3472 | ServiceResult f; |
e5123725 | 3473 | ExitClean clean_mode; |
5cb5a6ff LP |
3474 | |
3475 | assert(s); | |
034c6ed7 LP |
3476 | assert(pid >= 0); |
3477 | ||
e5123725 AZ |
3478 | /* Oneshot services and non-SERVICE_EXEC_START commands should not be |
3479 | * considered daemons as they are typically not long running. */ | |
3480 | if (s->type == SERVICE_ONESHOT || (s->control_pid == pid && s->control_command_id != SERVICE_EXEC_START)) | |
3481 | clean_mode = EXIT_CLEAN_COMMAND; | |
3482 | else | |
3483 | clean_mode = EXIT_CLEAN_DAEMON; | |
3484 | ||
3485 | if (is_clean_exit(code, status, clean_mode, &s->success_status)) | |
f42806df LP |
3486 | f = SERVICE_SUCCESS; |
3487 | else if (code == CLD_EXITED) | |
3488 | f = SERVICE_FAILURE_EXIT_CODE; | |
3489 | else if (code == CLD_KILLED) | |
3490 | f = SERVICE_FAILURE_SIGNAL; | |
3491 | else if (code == CLD_DUMPED) | |
3492 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 3493 | else |
04499a70 | 3494 | assert_not_reached(); |
034c6ed7 | 3495 | |
abaf5edd | 3496 | if (s->main_pid == pid) { |
13bb1ffb ZJS |
3497 | /* Clean up the exec_fd event source. We want to do this here, not later in |
3498 | * service_set_state(), because service_enter_stop_post() calls service_spawn(). | |
3499 | * The source owns its end of the pipe, so this will close that too. */ | |
3500 | s->exec_fd_event_source = sd_event_source_disable_unref(s->exec_fd_event_source); | |
3501 | ||
db01f8b3 MS |
3502 | /* Forking services may occasionally move to a new PID. |
3503 | * As long as they update the PID file before exiting the old | |
3504 | * PID, they're fine. */ | |
db256aab | 3505 | if (service_load_pid_file(s, false) > 0) |
db01f8b3 | 3506 | return; |
034c6ed7 | 3507 | |
034c6ed7 | 3508 | s->main_pid = 0; |
6ea832a2 | 3509 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 3510 | |
867b3b7d | 3511 | if (s->main_command) { |
fbeefb45 LP |
3512 | /* If this is not a forking service than the |
3513 | * main process got started and hence we copy | |
3514 | * the exit status so that it is recorded both | |
3515 | * as main and as control process exit | |
3516 | * status */ | |
3517 | ||
867b3b7d | 3518 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 3519 | |
3ed0cd26 | 3520 | if (s->main_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3521 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
3522 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
3523 | ||
3524 | /* If this is a forked process, then we should | |
3525 | * ignore the return value if this was | |
3526 | * configured for the starter process */ | |
3527 | ||
3ed0cd26 | 3528 | if (s->exec_command[SERVICE_EXEC_START]->flags & EXEC_COMMAND_IGNORE_FAILURE) |
fbeefb45 | 3529 | f = SERVICE_SUCCESS; |
034c6ed7 LP |
3530 | } |
3531 | ||
91bbd9b7 | 3532 | unit_log_process_exit( |
5cc2cd1c | 3533 | u, |
abaf5edd | 3534 | "Main process", |
91bbd9b7 | 3535 | service_exec_command_to_string(SERVICE_EXEC_START), |
5cc2cd1c | 3536 | f == SERVICE_SUCCESS, |
91bbd9b7 | 3537 | code, status); |
f42806df | 3538 | |
a0fef983 | 3539 | if (s->result == SERVICE_SUCCESS) |
f42806df | 3540 | s->result = f; |
034c6ed7 | 3541 | |
867b3b7d LP |
3542 | if (s->main_command && |
3543 | s->main_command->command_next && | |
b58aeb70 | 3544 | s->type == SERVICE_ONESHOT && |
f42806df | 3545 | f == SERVICE_SUCCESS) { |
034c6ed7 | 3546 | |
e78695d4 | 3547 | /* There is another command to execute, so let's do that. */ |
034c6ed7 | 3548 | |
f2341e0a | 3549 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 3550 | service_run_next_main(s); |
034c6ed7 | 3551 | |
34e9ba66 | 3552 | } else { |
867b3b7d | 3553 | s->main_command = NULL; |
34e9ba66 | 3554 | |
596e4470 HC |
3555 | /* Services with ExitType=cgroup do not act on main PID exiting, |
3556 | * unless the cgroup is already empty */ | |
3557 | if (s->exit_type == SERVICE_EXIT_MAIN || cgroup_good(s) <= 0) { | |
3558 | /* The service exited, so the service is officially gone. */ | |
3559 | switch (s->state) { | |
3560 | ||
3561 | case SERVICE_START_POST: | |
3562 | case SERVICE_RELOAD: | |
3563 | /* If neither main nor control processes are running then | |
3564 | * the current state can never exit cleanly, hence immediately | |
3565 | * terminate the service. */ | |
3566 | if (control_pid_good(s) <= 0) | |
3567 | service_enter_stop(s, f); | |
3568 | ||
3569 | /* Otherwise need to wait until the operation is done. */ | |
3570 | break; | |
bbe19f68 | 3571 | |
596e4470 HC |
3572 | case SERVICE_STOP: |
3573 | /* Need to wait until the operation is done. */ | |
3574 | break; | |
bbe19f68 | 3575 | |
596e4470 HC |
3576 | case SERVICE_START: |
3577 | if (s->type == SERVICE_ONESHOT) { | |
3578 | /* This was our main goal, so let's go on */ | |
3579 | if (f == SERVICE_SUCCESS) | |
3580 | service_enter_start_post(s); | |
3581 | else | |
3582 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
3583 | break; | |
3584 | } else if (s->type == SERVICE_NOTIFY) { | |
3585 | /* Only enter running through a notification, so that the | |
3586 | * SERVICE_START state signifies that no ready notification | |
3587 | * has been received */ | |
3588 | if (f != SERVICE_SUCCESS) | |
3589 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
3590 | else if (!s->remain_after_exit || s->notify_access == NOTIFY_MAIN) | |
3591 | /* The service has never been and will never be active */ | |
3592 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); | |
3593 | break; | |
3594 | } | |
7d55e835 | 3595 | |
596e4470 HC |
3596 | _fallthrough_; |
3597 | case SERVICE_RUNNING: | |
3598 | service_enter_running(s, f); | |
3d474ef7 | 3599 | break; |
034c6ed7 | 3600 | |
596e4470 HC |
3601 | case SERVICE_STOP_WATCHDOG: |
3602 | case SERVICE_STOP_SIGTERM: | |
3603 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 3604 | |
596e4470 HC |
3605 | if (control_pid_good(s) <= 0) |
3606 | service_enter_stop_post(s, f); | |
5cb5a6ff | 3607 | |
596e4470 HC |
3608 | /* If there is still a control process, wait for that first */ |
3609 | break; | |
34e9ba66 | 3610 | |
596e4470 | 3611 | case SERVICE_STOP_POST: |
c1566ef0 | 3612 | |
596e4470 HC |
3613 | if (control_pid_good(s) <= 0) |
3614 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
c1566ef0 | 3615 | |
596e4470 | 3616 | break; |
c1566ef0 | 3617 | |
596e4470 HC |
3618 | case SERVICE_FINAL_WATCHDOG: |
3619 | case SERVICE_FINAL_SIGTERM: | |
3620 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 | 3621 | |
596e4470 HC |
3622 | if (control_pid_good(s) <= 0) |
3623 | service_enter_dead(s, f, true); | |
3624 | break; | |
bf108e55 | 3625 | |
596e4470 HC |
3626 | default: |
3627 | assert_not_reached(); | |
3628 | } | |
34e9ba66 | 3629 | } |
034c6ed7 | 3630 | } |
5cb5a6ff | 3631 | |
034c6ed7 | 3632 | } else if (s->control_pid == pid) { |
58441bc1 ZJS |
3633 | const char *kind; |
3634 | bool success; | |
3635 | ||
34e9ba66 LP |
3636 | s->control_pid = 0; |
3637 | ||
b708e7ce | 3638 | if (s->control_command) { |
8bb2d17d | 3639 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 3640 | |
3ed0cd26 | 3641 | if (s->control_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3642 | f = SERVICE_SUCCESS; |
b708e7ce LP |
3643 | } |
3644 | ||
42e6f549 AZ |
3645 | /* ExecCondition= calls that exit with (0, 254] should invoke skip-like behavior instead of failing */ |
3646 | if (s->state == SERVICE_CONDITION) { | |
3647 | if (f == SERVICE_FAILURE_EXIT_CODE && status < 255) { | |
3648 | UNIT(s)->condition_result = false; | |
3649 | f = SERVICE_SKIP_CONDITION; | |
58441bc1 ZJS |
3650 | success = true; |
3651 | } else if (f == SERVICE_SUCCESS) { | |
42e6f549 | 3652 | UNIT(s)->condition_result = true; |
58441bc1 ZJS |
3653 | success = true; |
3654 | } else | |
3655 | success = false; | |
3656 | ||
3657 | kind = "Condition check process"; | |
3658 | } else { | |
3659 | kind = "Control process"; | |
3660 | success = f == SERVICE_SUCCESS; | |
42e6f549 AZ |
3661 | } |
3662 | ||
91bbd9b7 | 3663 | unit_log_process_exit( |
5cc2cd1c | 3664 | u, |
58441bc1 | 3665 | kind, |
91bbd9b7 | 3666 | service_exec_command_to_string(s->control_command_id), |
58441bc1 | 3667 | success, |
91bbd9b7 | 3668 | code, status); |
f42806df | 3669 | |
d611cfa7 | 3670 | if (s->state != SERVICE_RELOAD && s->result == SERVICE_SUCCESS) |
f42806df | 3671 | s->result = f; |
034c6ed7 | 3672 | |
34e9ba66 LP |
3673 | if (s->control_command && |
3674 | s->control_command->command_next && | |
f42806df | 3675 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3676 | |
3677 | /* There is another command to * | |
3678 | * execute, so let's do that. */ | |
3679 | ||
f2341e0a | 3680 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 3681 | service_run_next_control(s); |
034c6ed7 | 3682 | |
80876c20 | 3683 | } else { |
034c6ed7 LP |
3684 | /* No further commands for this step, so let's |
3685 | * figure out what to do next */ | |
3686 | ||
a16e1123 LP |
3687 | s->control_command = NULL; |
3688 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3689 | ||
f2341e0a | 3690 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 3691 | |
034c6ed7 LP |
3692 | switch (s->state) { |
3693 | ||
31cd5f63 AZ |
3694 | case SERVICE_CONDITION: |
3695 | if (f == SERVICE_SUCCESS) | |
3696 | service_enter_start_pre(s); | |
3697 | else | |
3698 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
3699 | break; | |
3700 | ||
034c6ed7 | 3701 | case SERVICE_START_PRE: |
f42806df | 3702 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3703 | service_enter_start(s); |
3704 | else | |
c3fda31d | 3705 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3706 | break; |
3707 | ||
3708 | case SERVICE_START: | |
bfba3256 LP |
3709 | if (s->type != SERVICE_FORKING) |
3710 | /* Maybe spurious event due to a reload that changed the type? */ | |
3711 | break; | |
034c6ed7 | 3712 | |
f42806df | 3713 | if (f != SERVICE_SUCCESS) { |
c3fda31d | 3714 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3a111838 MS |
3715 | break; |
3716 | } | |
034c6ed7 | 3717 | |
3a111838 | 3718 | if (s->pid_file) { |
f42806df LP |
3719 | bool has_start_post; |
3720 | int r; | |
3721 | ||
3a111838 MS |
3722 | /* Let's try to load the pid file here if we can. |
3723 | * The PID file might actually be created by a START_POST | |
3724 | * script. In that case don't worry if the loading fails. */ | |
f42806df | 3725 | |
5d904a6a | 3726 | has_start_post = s->exec_command[SERVICE_EXEC_START_POST]; |
f42806df | 3727 | r = service_load_pid_file(s, !has_start_post); |
3a111838 MS |
3728 | if (!has_start_post && r < 0) { |
3729 | r = service_demand_pid_file(s); | |
b13ddbbc | 3730 | if (r < 0 || cgroup_good(s) == 0) |
c3fda31d | 3731 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3a111838 MS |
3732 | break; |
3733 | } | |
034c6ed7 | 3734 | } else |
783e05d6 | 3735 | service_search_main_pid(s); |
034c6ed7 | 3736 | |
3a111838 | 3737 | service_enter_start_post(s); |
034c6ed7 LP |
3738 | break; |
3739 | ||
3740 | case SERVICE_START_POST: | |
f42806df | 3741 | if (f != SERVICE_SUCCESS) { |
ce359e98 | 3742 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
2096e009 | 3743 | break; |
034c6ed7 LP |
3744 | } |
3745 | ||
2096e009 | 3746 | if (s->pid_file) { |
f42806df LP |
3747 | int r; |
3748 | ||
3749 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3750 | if (r < 0) { |
3751 | r = service_demand_pid_file(s); | |
b13ddbbc | 3752 | if (r < 0 || cgroup_good(s) == 0) |
c35755fb | 3753 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
2096e009 MS |
3754 | break; |
3755 | } | |
3756 | } else | |
783e05d6 | 3757 | service_search_main_pid(s); |
2096e009 | 3758 | |
f42806df | 3759 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3760 | break; |
034c6ed7 LP |
3761 | |
3762 | case SERVICE_RELOAD: | |
7236ce6e ZJS |
3763 | if (f == SERVICE_SUCCESS) |
3764 | if (service_load_pid_file(s, true) < 0) | |
3765 | service_search_main_pid(s); | |
3185a36b | 3766 | |
f42806df LP |
3767 | s->reload_result = f; |
3768 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3769 | break; |
3770 | ||
3771 | case SERVICE_STOP: | |
f42806df | 3772 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3773 | break; |
3774 | ||
c87700a1 | 3775 | case SERVICE_STOP_WATCHDOG: |
034c6ed7 LP |
3776 | case SERVICE_STOP_SIGTERM: |
3777 | case SERVICE_STOP_SIGKILL: | |
3778 | if (main_pid_good(s) <= 0) | |
f42806df | 3779 | service_enter_stop_post(s, f); |
034c6ed7 | 3780 | |
846a07b5 | 3781 | /* If there is still a service process around, wait until |
034c6ed7 LP |
3782 | * that one quit, too */ |
3783 | break; | |
3784 | ||
3785 | case SERVICE_STOP_POST: | |
c1566ef0 AZ |
3786 | if (main_pid_good(s) <= 0) |
3787 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3788 | break; | |
3789 | ||
bf760801 | 3790 | case SERVICE_FINAL_WATCHDOG: |
034c6ed7 LP |
3791 | case SERVICE_FINAL_SIGTERM: |
3792 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
3793 | if (main_pid_good(s) <= 0) |
3794 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
3795 | break; |
3796 | ||
4c2f5842 LP |
3797 | case SERVICE_CLEANING: |
3798 | ||
3799 | if (s->clean_result == SERVICE_SUCCESS) | |
3800 | s->clean_result = f; | |
3801 | ||
3802 | service_enter_dead(s, SERVICE_SUCCESS, false); | |
3803 | break; | |
3804 | ||
034c6ed7 | 3805 | default: |
04499a70 | 3806 | assert_not_reached(); |
034c6ed7 LP |
3807 | } |
3808 | } | |
5cdabc8d LP |
3809 | } else /* Neither control nor main PID? If so, don't notify about anything */ |
3810 | notify_dbus = false; | |
c4e2ceae LP |
3811 | |
3812 | /* Notify clients about changed exit status */ | |
5cdabc8d LP |
3813 | if (notify_dbus) |
3814 | unit_add_to_dbus_queue(u); | |
a911bb9a | 3815 | |
846a07b5 FB |
3816 | /* We watch the main/control process otherwise we can't retrieve the unit they |
3817 | * belong to with cgroupv1. But if they are not our direct child, we won't get a | |
3818 | * SIGCHLD for them. Therefore we need to look for others to watch so we can | |
3819 | * detect when the cgroup becomes empty. Note that the control process is always | |
3820 | * our child so it's pointless to watch all other processes. */ | |
3821 | if (!control_pid_good(s)) | |
3822 | if (!s->main_pid_known || s->main_pid_alien) | |
3823 | (void) unit_enqueue_rewatch_pids(u); | |
034c6ed7 LP |
3824 | } |
3825 | ||
718db961 LP |
3826 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
3827 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
3828 | |
3829 | assert(s); | |
718db961 | 3830 | assert(source == s->timer_event_source); |
034c6ed7 LP |
3831 | |
3832 | switch (s->state) { | |
3833 | ||
31cd5f63 | 3834 | case SERVICE_CONDITION: |
034c6ed7 LP |
3835 | case SERVICE_START_PRE: |
3836 | case SERVICE_START: | |
3837 | case SERVICE_START_POST: | |
bf760801 JK |
3838 | switch (s->timeout_start_failure_mode) { |
3839 | ||
3840 | case SERVICE_TIMEOUT_TERMINATE: | |
3841 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", service_state_to_string(s->state)); | |
3842 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); | |
3843 | break; | |
3844 | ||
3845 | case SERVICE_TIMEOUT_ABORT: | |
3846 | log_unit_warning(UNIT(s), "%s operation timed out. Aborting.", service_state_to_string(s->state)); | |
3847 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_TIMEOUT); | |
3848 | break; | |
3849 | ||
3850 | case SERVICE_TIMEOUT_KILL: | |
3851 | if (s->kill_context.send_sigkill) { | |
3852 | log_unit_warning(UNIT(s), "%s operation timed out. Killing.", service_state_to_string(s->state)); | |
3853 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); | |
3854 | } else { | |
3855 | log_unit_warning(UNIT(s), "%s operation timed out. Skipping SIGKILL.", service_state_to_string(s->state)); | |
3856 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); | |
3857 | } | |
3858 | break; | |
3859 | ||
3860 | default: | |
04499a70 | 3861 | assert_not_reached(); |
bf760801 | 3862 | } |
034c6ed7 LP |
3863 | break; |
3864 | ||
36c16a7c LP |
3865 | case SERVICE_RUNNING: |
3866 | log_unit_warning(UNIT(s), "Service reached runtime time limit. Stopping."); | |
3867 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); | |
3868 | break; | |
3869 | ||
e2f3b44c | 3870 | case SERVICE_RELOAD: |
089b64d5 | 3871 | log_unit_warning(UNIT(s), "Reload operation timed out. Killing reload process."); |
e9a4f676 | 3872 | service_kill_control_process(s); |
f42806df LP |
3873 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3874 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3875 | break; |
3876 | ||
034c6ed7 | 3877 | case SERVICE_STOP: |
bf760801 JK |
3878 | switch (s->timeout_stop_failure_mode) { |
3879 | ||
3880 | case SERVICE_TIMEOUT_TERMINATE: | |
3881 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); | |
3882 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); | |
3883 | break; | |
3884 | ||
3885 | case SERVICE_TIMEOUT_ABORT: | |
3886 | log_unit_warning(UNIT(s), "Stopping timed out. Aborting."); | |
3887 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_TIMEOUT); | |
3888 | break; | |
3889 | ||
3890 | case SERVICE_TIMEOUT_KILL: | |
3891 | if (s->kill_context.send_sigkill) { | |
3892 | log_unit_warning(UNIT(s), "Stopping timed out. Killing."); | |
3893 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); | |
3894 | } else { | |
3895 | log_unit_warning(UNIT(s), "Stopping timed out. Skipping SIGKILL."); | |
3896 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); | |
3897 | } | |
3898 | break; | |
3899 | ||
3900 | default: | |
04499a70 | 3901 | assert_not_reached(); |
bf760801 | 3902 | } |
034c6ed7 LP |
3903 | break; |
3904 | ||
c87700a1 | 3905 | case SERVICE_STOP_WATCHDOG: |
bf760801 JK |
3906 | if (s->kill_context.send_sigkill) { |
3907 | log_unit_warning(UNIT(s), "State 'stop-watchdog' timed out. Killing."); | |
3908 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); | |
3909 | } else { | |
3910 | log_unit_warning(UNIT(s), "State 'stop-watchdog' timed out. Skipping SIGKILL."); | |
3911 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); | |
3912 | } | |
db2cb23b UTL |
3913 | break; |
3914 | ||
034c6ed7 | 3915 | case SERVICE_STOP_SIGTERM: |
bf760801 JK |
3916 | if (s->timeout_stop_failure_mode == SERVICE_TIMEOUT_ABORT) { |
3917 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Aborting."); | |
3918 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_TIMEOUT); | |
3919 | } else if (s->kill_context.send_sigkill) { | |
f2341e0a | 3920 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 3921 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3922 | } else { |
f2341e0a | 3923 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 3924 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3925 | } |
3926 | ||
034c6ed7 LP |
3927 | break; |
3928 | ||
3929 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3930 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3931 | * Must be something we cannot kill, so let's just be |
3932 | * weirded out and continue */ | |
3933 | ||
f2341e0a | 3934 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 3935 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3936 | break; |
3937 | ||
3938 | case SERVICE_STOP_POST: | |
bf760801 JK |
3939 | switch (s->timeout_stop_failure_mode) { |
3940 | ||
3941 | case SERVICE_TIMEOUT_TERMINATE: | |
3942 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); | |
3943 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); | |
3944 | break; | |
3945 | ||
3946 | case SERVICE_TIMEOUT_ABORT: | |
3947 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Aborting."); | |
3948 | service_enter_signal(s, SERVICE_FINAL_WATCHDOG, SERVICE_FAILURE_TIMEOUT); | |
3949 | break; | |
3950 | ||
3951 | case SERVICE_TIMEOUT_KILL: | |
3952 | if (s->kill_context.send_sigkill) { | |
3953 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Killing."); | |
3954 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); | |
3955 | } else { | |
3956 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Skipping SIGKILL. Entering failed mode."); | |
3957 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); | |
3958 | } | |
3959 | break; | |
3960 | ||
3961 | default: | |
04499a70 | 3962 | assert_not_reached(); |
bf760801 | 3963 | } |
034c6ed7 LP |
3964 | break; |
3965 | ||
bf760801 | 3966 | case SERVICE_FINAL_WATCHDOG: |
4819ff03 | 3967 | if (s->kill_context.send_sigkill) { |
bf760801 | 3968 | log_unit_warning(UNIT(s), "State 'final-watchdog' timed out. Killing."); |
f42806df | 3969 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3970 | } else { |
bf760801 JK |
3971 | log_unit_warning(UNIT(s), "State 'final-watchdog' timed out. Skipping SIGKILL. Entering failed mode."); |
3972 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); | |
3973 | } | |
3974 | break; | |
3975 | ||
3976 | case SERVICE_FINAL_SIGTERM: | |
3977 | if (s->timeout_stop_failure_mode == SERVICE_TIMEOUT_ABORT) { | |
3978 | log_unit_warning(UNIT(s), "State 'final-sigterm' timed out. Aborting."); | |
3979 | service_enter_signal(s, SERVICE_FINAL_WATCHDOG, SERVICE_FAILURE_TIMEOUT); | |
3980 | } else if (s->kill_context.send_sigkill) { | |
3981 | log_unit_warning(UNIT(s), "State 'final-sigterm' timed out. Killing."); | |
3982 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); | |
3983 | } else { | |
3984 | log_unit_warning(UNIT(s), "State 'final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); | |
f42806df | 3985 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3986 | } |
3987 | ||
034c6ed7 LP |
3988 | break; |
3989 | ||
3990 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 3991 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 3992 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3993 | break; |
3994 | ||
3995 | case SERVICE_AUTO_RESTART: | |
5291f26d | 3996 | if (s->restart_usec > 0) |
868f7d36 ZJS |
3997 | log_unit_debug(UNIT(s), |
3998 | "Service RestartSec=%s expired, scheduling restart.", | |
5291f26d ZJS |
3999 | FORMAT_TIMESPAN(s->restart_usec, USEC_PER_SEC)); |
4000 | else | |
868f7d36 ZJS |
4001 | log_unit_debug(UNIT(s), |
4002 | "Service has no hold-off time (RestartSec=0), scheduling restart."); | |
5ce6e7f5 | 4003 | |
034c6ed7 LP |
4004 | service_enter_restart(s); |
4005 | break; | |
4006 | ||
4c2f5842 LP |
4007 | case SERVICE_CLEANING: |
4008 | log_unit_warning(UNIT(s), "Cleaning timed out. killing."); | |
4009 | ||
4010 | if (s->clean_result == SERVICE_SUCCESS) | |
4011 | s->clean_result = SERVICE_FAILURE_TIMEOUT; | |
4012 | ||
4013 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, 0); | |
4014 | break; | |
4015 | ||
034c6ed7 | 4016 | default: |
04499a70 | 4017 | assert_not_reached(); |
034c6ed7 | 4018 | } |
718db961 LP |
4019 | |
4020 | return 0; | |
4021 | } | |
4022 | ||
4023 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
4024 | Service *s = SERVICE(userdata); | |
2787d83c | 4025 | usec_t watchdog_usec; |
718db961 LP |
4026 | |
4027 | assert(s); | |
4028 | assert(source == s->watchdog_event_source); | |
4029 | ||
2787d83c M |
4030 | watchdog_usec = service_get_watchdog_usec(s); |
4031 | ||
2a12e32e JK |
4032 | if (UNIT(s)->manager->service_watchdogs) { |
4033 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", | |
5291f26d | 4034 | FORMAT_TIMESPAN(watchdog_usec, 1)); |
8bb2d17d | 4035 | |
c87700a1 | 4036 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_WATCHDOG); |
2a12e32e JK |
4037 | } else |
4038 | log_unit_warning(UNIT(s), "Watchdog disabled! Ignoring watchdog timeout (limit %s)!", | |
5291f26d | 4039 | FORMAT_TIMESPAN(watchdog_usec, 1)); |
842129f5 | 4040 | |
718db961 | 4041 | return 0; |
5cb5a6ff LP |
4042 | } |
4043 | ||
fcee2755 | 4044 | static bool service_notify_message_authorized(Service *s, pid_t pid, FDSet *fds) { |
e3285237 | 4045 | assert(s); |
8c47c732 | 4046 | |
c952c6ec | 4047 | if (s->notify_access == NOTIFY_NONE) { |
e3285237 LP |
4048 | log_unit_warning(UNIT(s), "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
4049 | return false; | |
4050 | } | |
4051 | ||
4052 | if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { | |
336c6e46 | 4053 | if (s->main_pid != 0) |
e3285237 | 4054 | log_unit_warning(UNIT(s), "Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT, pid, s->main_pid); |
336c6e46 | 4055 | else |
e3285237 LP |
4056 | log_unit_warning(UNIT(s), "Got notification message from PID "PID_FMT", but reception only permitted for main PID which is currently not known", pid); |
4057 | ||
4058 | return false; | |
4059 | } | |
4060 | ||
4061 | if (s->notify_access == NOTIFY_EXEC && pid != s->main_pid && pid != s->control_pid) { | |
6375bd20 | 4062 | if (s->main_pid != 0 && s->control_pid != 0) |
e3285237 | 4063 | log_unit_warning(UNIT(s), "Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT" and control PID "PID_FMT, |
6375bd20 JW |
4064 | pid, s->main_pid, s->control_pid); |
4065 | else if (s->main_pid != 0) | |
e3285237 | 4066 | log_unit_warning(UNIT(s), "Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT, pid, s->main_pid); |
6375bd20 | 4067 | else if (s->control_pid != 0) |
e3285237 | 4068 | log_unit_warning(UNIT(s), "Got notification message from PID "PID_FMT", but reception only permitted for control PID "PID_FMT, pid, s->control_pid); |
6375bd20 | 4069 | else |
e3285237 LP |
4070 | log_unit_warning(UNIT(s), "Got notification message from PID "PID_FMT", but reception only permitted for main PID and control PID which are currently not known", pid); |
4071 | ||
4072 | return false; | |
9711848f LP |
4073 | } |
4074 | ||
e3285237 LP |
4075 | return true; |
4076 | } | |
4077 | ||
99b43caf JK |
4078 | static void service_force_watchdog(Service *s) { |
4079 | if (!UNIT(s)->manager->service_watchdogs) | |
4080 | return; | |
4081 | ||
4082 | log_unit_error(UNIT(s), "Watchdog request (last status: %s)!", | |
4083 | s->status_text ? s->status_text : "<unset>"); | |
4084 | ||
4085 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_WATCHDOG); | |
4086 | } | |
4087 | ||
db256aab LP |
4088 | static void service_notify_message( |
4089 | Unit *u, | |
4090 | const struct ucred *ucred, | |
fcee2755 | 4091 | char * const *tags, |
db256aab LP |
4092 | FDSet *fds) { |
4093 | ||
e3285237 LP |
4094 | Service *s = SERVICE(u); |
4095 | bool notify_dbus = false; | |
4096 | const char *e; | |
db256aab | 4097 | int r; |
e3285237 LP |
4098 | |
4099 | assert(u); | |
db256aab | 4100 | assert(ucred); |
e3285237 | 4101 | |
fcee2755 | 4102 | if (!service_notify_message_authorized(SERVICE(u), ucred->pid, fds)) |
e3285237 LP |
4103 | return; |
4104 | ||
f1d34068 | 4105 | if (DEBUG_LOGGING) { |
9711848f LP |
4106 | _cleanup_free_ char *cc = NULL; |
4107 | ||
4108 | cc = strv_join(tags, ", "); | |
db256aab | 4109 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", ucred->pid, isempty(cc) ? "n/a" : cc); |
9711848f | 4110 | } |
c952c6ec | 4111 | |
8c47c732 | 4112 | /* Interpret MAINPID= */ |
28849dba | 4113 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 4114 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
db256aab LP |
4115 | pid_t new_main_pid; |
4116 | ||
4117 | if (parse_pid(e, &new_main_pid) < 0) | |
4118 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message, ignoring: %s", e); | |
4119 | else if (!s->main_pid_known || new_main_pid != s->main_pid) { | |
4120 | ||
4121 | r = service_is_suitable_main_pid(s, new_main_pid, LOG_WARNING); | |
4122 | if (r == 0) { | |
5238e957 | 4123 | /* The new main PID is a bit suspicious, which is OK if the sender is privileged. */ |
db256aab LP |
4124 | |
4125 | if (ucred->uid == 0) { | |
4126 | log_unit_debug(u, "New main PID "PID_FMT" does not belong to service, but we'll accept it as the request to change it came from a privileged process.", new_main_pid); | |
4127 | r = 1; | |
4128 | } else | |
4129 | log_unit_debug(u, "New main PID "PID_FMT" does not belong to service, refusing.", new_main_pid); | |
4130 | } | |
4131 | if (r > 0) { | |
5c95eb28 | 4132 | (void) service_set_main_pid(s, new_main_pid); |
cdc2af3e | 4133 | |
f75f613d | 4134 | r = unit_watch_pid(UNIT(s), new_main_pid, false); |
cdc2af3e LP |
4135 | if (r < 0) |
4136 | log_unit_warning_errno(UNIT(s), r, "Failed to watch new main PID "PID_FMT" for service: %m", new_main_pid); | |
4137 | ||
db256aab LP |
4138 | notify_dbus = true; |
4139 | } | |
8c47c732 LP |
4140 | } |
4141 | } | |
4142 | ||
cc2b7b11 LP |
4143 | /* Interpret READY=/STOPPING=/RELOADING=. Last one wins. */ |
4144 | STRV_FOREACH_BACKWARDS(i, tags) { | |
308d72dc | 4145 | |
cc2b7b11 LP |
4146 | if (streq(*i, "READY=1")) { |
4147 | s->notify_state = NOTIFY_READY; | |
308d72dc | 4148 | |
cc2b7b11 LP |
4149 | /* Type=notify services inform us about completed |
4150 | * initialization with READY=1 */ | |
4151 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
4152 | service_enter_start_post(s); | |
308d72dc | 4153 | |
cc2b7b11 LP |
4154 | /* Sending READY=1 while we are reloading informs us |
4155 | * that the reloading is complete */ | |
4156 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
4157 | service_enter_running(s, SERVICE_SUCCESS); | |
308d72dc | 4158 | |
cc2b7b11 LP |
4159 | notify_dbus = true; |
4160 | break; | |
308d72dc | 4161 | |
cc2b7b11 LP |
4162 | } else if (streq(*i, "RELOADING=1")) { |
4163 | s->notify_state = NOTIFY_RELOADING; | |
308d72dc | 4164 | |
cc2b7b11 LP |
4165 | if (s->state == SERVICE_RUNNING) |
4166 | service_enter_reload_by_notify(s); | |
308d72dc | 4167 | |
cc2b7b11 LP |
4168 | notify_dbus = true; |
4169 | break; | |
308d72dc | 4170 | |
cc2b7b11 LP |
4171 | } else if (streq(*i, "STOPPING=1")) { |
4172 | s->notify_state = NOTIFY_STOPPING; | |
308d72dc | 4173 | |
cc2b7b11 LP |
4174 | if (s->state == SERVICE_RUNNING) |
4175 | service_enter_stop_by_notify(s); | |
308d72dc | 4176 | |
cc2b7b11 LP |
4177 | notify_dbus = true; |
4178 | break; | |
4179 | } | |
8c47c732 LP |
4180 | } |
4181 | ||
4182 | /* Interpret STATUS= */ | |
28849dba | 4183 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 4184 | if (e) { |
28849dba | 4185 | _cleanup_free_ char *t = NULL; |
8c47c732 | 4186 | |
28849dba | 4187 | if (!isempty(e)) { |
3eac1bca LP |
4188 | /* Note that this size limit check is mostly paranoia: since the datagram size we are willing |
4189 | * to process is already limited to NOTIFY_BUFFER_MAX, this limit here should never be hit. */ | |
4190 | if (strlen(e) > STATUS_TEXT_MAX) | |
4191 | log_unit_warning(u, "Status message overly long (%zu > %u), ignoring.", strlen(e), STATUS_TEXT_MAX); | |
4192 | else if (!utf8_is_valid(e)) | |
4193 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean, ignoring."); | |
28849dba | 4194 | else { |
28849dba LP |
4195 | t = strdup(e); |
4196 | if (!t) | |
4197 | log_oom(); | |
3a2776bc | 4198 | } |
28849dba | 4199 | } |
8c47c732 | 4200 | |
30b5275a | 4201 | if (!streq_ptr(s->status_text, t)) { |
3b319885 | 4202 | free_and_replace(s->status_text, t); |
30b5275a | 4203 | notify_dbus = true; |
28849dba | 4204 | } |
8c47c732 | 4205 | } |
842129f5 | 4206 | |
4774e357 | 4207 | /* Interpret ERRNO= */ |
28849dba | 4208 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
4209 | if (e) { |
4210 | int status_errno; | |
4211 | ||
2fa40742 LP |
4212 | status_errno = parse_errno(e); |
4213 | if (status_errno < 0) | |
4214 | log_unit_warning_errno(u, status_errno, | |
5e1ee764 | 4215 | "Failed to parse ERRNO= field value '%s' in notification message: %m", e); |
2fa40742 LP |
4216 | else if (s->status_errno != status_errno) { |
4217 | s->status_errno = status_errno; | |
4218 | notify_dbus = true; | |
4774e357 MAA |
4219 | } |
4220 | } | |
4221 | ||
a327431b DB |
4222 | /* Interpret EXTEND_TIMEOUT= */ |
4223 | e = strv_find_startswith(tags, "EXTEND_TIMEOUT_USEC="); | |
4224 | if (e) { | |
4225 | usec_t extend_timeout_usec; | |
4226 | if (safe_atou64(e, &extend_timeout_usec) < 0) | |
4227 | log_unit_warning(u, "Failed to parse EXTEND_TIMEOUT_USEC=%s", e); | |
4228 | else | |
4229 | service_extend_timeout(s, extend_timeout_usec); | |
4230 | } | |
4231 | ||
6f285378 | 4232 | /* Interpret WATCHDOG= */ |
99b43caf JK |
4233 | e = strv_find_startswith(tags, "WATCHDOG="); |
4234 | if (e) { | |
4235 | if (streq(e, "1")) | |
4236 | service_reset_watchdog(s); | |
4237 | else if (streq(e, "trigger")) | |
4238 | service_force_watchdog(s); | |
4239 | else | |
4240 | log_unit_warning(u, "Passed WATCHDOG= field is invalid, ignoring."); | |
4241 | } | |
c4e2ceae | 4242 | |
c45d11cb LP |
4243 | e = strv_find_startswith(tags, "WATCHDOG_USEC="); |
4244 | if (e) { | |
4245 | usec_t watchdog_override_usec; | |
4246 | if (safe_atou64(e, &watchdog_override_usec) < 0) | |
4247 | log_unit_warning(u, "Failed to parse WATCHDOG_USEC=%s", e); | |
4248 | else | |
95d0d8ed | 4249 | service_override_watchdog_timeout(s, watchdog_override_usec); |
c45d11cb LP |
4250 | } |
4251 | ||
e78ee06d LP |
4252 | /* Process FD store messages. Either FDSTOREREMOVE=1 for removal, or FDSTORE=1 for addition. In both cases, |
4253 | * process FDNAME= for picking the file descriptor name to use. Note that FDNAME= is required when removing | |
4254 | * fds, but optional when pushing in new fds, for compatibility reasons. */ | |
d29cc4d6 | 4255 | if (strv_contains(tags, "FDSTOREREMOVE=1")) { |
e78ee06d LP |
4256 | const char *name; |
4257 | ||
4258 | name = strv_find_startswith(tags, "FDNAME="); | |
4259 | if (!name || !fdname_is_valid(name)) | |
4260 | log_unit_warning(u, "FDSTOREREMOVE=1 requested, but no valid file descriptor name passed, ignoring."); | |
4261 | else | |
4262 | service_remove_fd_store(s, name); | |
4263 | ||
d29cc4d6 | 4264 | } else if (strv_contains(tags, "FDSTORE=1")) { |
8dd4c05b LP |
4265 | const char *name; |
4266 | ||
4267 | name = strv_find_startswith(tags, "FDNAME="); | |
4268 | if (name && !fdname_is_valid(name)) { | |
4269 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
4270 | name = NULL; | |
4271 | } | |
4272 | ||
cb5a46b8 | 4273 | (void) service_add_fd_store_set(s, fds, name, !strv_contains(tags, "FDPOLL=0")); |
8dd4c05b | 4274 | } |
a354329f | 4275 | |
c4e2ceae | 4276 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
4277 | if (notify_dbus) |
4278 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
4279 | } |
4280 | ||
7a7821c8 | 4281 | static int service_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 4282 | Service *s = SERVICE(u); |
7a7821c8 | 4283 | uint64_t t; |
68db7a3b ZJS |
4284 | int r; |
4285 | ||
4286 | if (!s->timer_event_source) | |
4287 | return 0; | |
4288 | ||
7a7821c8 | 4289 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
4290 | if (r < 0) |
4291 | return r; | |
7a7821c8 LP |
4292 | if (t == USEC_INFINITY) |
4293 | return 0; | |
68db7a3b | 4294 | |
7a7821c8 | 4295 | *timeout = t; |
68db7a3b ZJS |
4296 | return 1; |
4297 | } | |
4298 | ||
e39eb045 LP |
4299 | static bool pick_up_pid_from_bus_name(Service *s) { |
4300 | assert(s); | |
4301 | ||
4302 | /* If the service is running but we have no main PID yet, get it from the owner of the D-Bus name */ | |
4303 | ||
4304 | return !pid_is_valid(s->main_pid) && | |
4305 | IN_SET(s->state, | |
4306 | SERVICE_START, | |
4307 | SERVICE_START_POST, | |
4308 | SERVICE_RUNNING, | |
4309 | SERVICE_RELOAD); | |
4310 | } | |
4311 | ||
4312 | static int bus_name_pid_lookup_callback(sd_bus_message *reply, void *userdata, sd_bus_error *ret_error) { | |
4313 | const sd_bus_error *e; | |
99534007 | 4314 | Unit *u = ASSERT_PTR(userdata); |
e39eb045 LP |
4315 | uint32_t pid; |
4316 | Service *s; | |
4317 | int r; | |
4318 | ||
4319 | assert(reply); | |
e39eb045 LP |
4320 | |
4321 | s = SERVICE(u); | |
4322 | s->bus_name_pid_lookup_slot = sd_bus_slot_unref(s->bus_name_pid_lookup_slot); | |
4323 | ||
4324 | if (!s->bus_name || !pick_up_pid_from_bus_name(s)) | |
4325 | return 1; | |
4326 | ||
4327 | e = sd_bus_message_get_error(reply); | |
4328 | if (e) { | |
4329 | r = sd_bus_error_get_errno(e); | |
4330 | log_warning_errno(r, "GetConnectionUnixProcessID() failed: %s", bus_error_message(e, r)); | |
4331 | return 1; | |
4332 | } | |
4333 | ||
4334 | r = sd_bus_message_read(reply, "u", &pid); | |
4335 | if (r < 0) { | |
4336 | bus_log_parse_error(r); | |
4337 | return 1; | |
4338 | } | |
4339 | ||
4340 | if (!pid_is_valid(pid)) { | |
4341 | log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "GetConnectionUnixProcessID() returned invalid PID"); | |
4342 | return 1; | |
4343 | } | |
4344 | ||
4345 | log_unit_debug(u, "D-Bus name %s is now owned by process " PID_FMT, s->bus_name, (pid_t) pid); | |
4346 | ||
5c95eb28 SS |
4347 | (void) service_set_main_pid(s, pid); |
4348 | (void) unit_watch_pid(UNIT(s), pid, false); | |
e39eb045 LP |
4349 | return 1; |
4350 | } | |
4351 | ||
fc67a943 | 4352 | static void service_bus_name_owner_change(Unit *u, const char *new_owner) { |
05e343b7 LP |
4353 | |
4354 | Service *s = SERVICE(u); | |
718db961 | 4355 | int r; |
05e343b7 LP |
4356 | |
4357 | assert(s); | |
05e343b7 | 4358 | |
fc67a943 LP |
4359 | if (new_owner) |
4360 | log_unit_debug(u, "D-Bus name %s now owned by %s", s->bus_name, new_owner); | |
05e343b7 | 4361 | else |
fc67a943 | 4362 | log_unit_debug(u, "D-Bus name %s now not owned by anyone.", s->bus_name); |
05e343b7 | 4363 | |
d7a0f1f4 | 4364 | s->bus_name_good = new_owner; |
05e343b7 | 4365 | |
d8ccf5fd DM |
4366 | /* Track the current owner, so we can reconstruct changes after a daemon reload */ |
4367 | r = free_and_strdup(&s->bus_name_owner, new_owner); | |
4368 | if (r < 0) { | |
4369 | log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner); | |
4370 | return; | |
4371 | } | |
4372 | ||
05e343b7 LP |
4373 | if (s->type == SERVICE_DBUS) { |
4374 | ||
4375 | /* service_enter_running() will figure out what to | |
4376 | * do */ | |
4377 | if (s->state == SERVICE_RUNNING) | |
f42806df | 4378 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
4379 | else if (s->state == SERVICE_START && new_owner) |
4380 | service_enter_start_post(s); | |
4381 | ||
e39eb045 | 4382 | } else if (new_owner && pick_up_pid_from_bus_name(s)) { |
05e343b7 | 4383 | |
718db961 | 4384 | /* Try to acquire PID from bus service */ |
05e343b7 | 4385 | |
e39eb045 LP |
4386 | s->bus_name_pid_lookup_slot = sd_bus_slot_unref(s->bus_name_pid_lookup_slot); |
4387 | ||
4388 | r = sd_bus_call_method_async( | |
4389 | u->manager->api_bus, | |
4390 | &s->bus_name_pid_lookup_slot, | |
4391 | "org.freedesktop.DBus", | |
4392 | "/org/freedesktop/DBus", | |
4393 | "org.freedesktop.DBus", | |
4394 | "GetConnectionUnixProcessID", | |
4395 | bus_name_pid_lookup_callback, | |
4396 | s, | |
4397 | "s", | |
4398 | s->bus_name); | |
4399 | if (r < 0) | |
4400 | log_debug_errno(r, "Failed to request owner PID of service name, ignoring: %m"); | |
7400b9d2 | 4401 | } |
05e343b7 LP |
4402 | } |
4403 | ||
3fabebf4 LP |
4404 | int service_set_socket_fd( |
4405 | Service *s, | |
4406 | int fd, | |
4407 | Socket *sock, | |
4408 | SocketPeer *peer, | |
4409 | bool selinux_context_net) { | |
4410 | ||
4411 | _cleanup_free_ char *peer_text = NULL; | |
79a98c60 | 4412 | int r; |
57020a3a | 4413 | |
4f2d528d LP |
4414 | assert(s); |
4415 | assert(fd >= 0); | |
4416 | ||
7f2fbbff LP |
4417 | /* This is called by the socket code when instantiating a new service for a stream socket and the socket needs |
4418 | * to be configured. We take ownership of the passed fd on success. */ | |
4f2d528d | 4419 | |
1124fe6f | 4420 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
4421 | return -EINVAL; |
4422 | ||
4423 | if (s->socket_fd >= 0) | |
4424 | return -EBUSY; | |
4425 | ||
3fabebf4 LP |
4426 | assert(!s->socket_peer); |
4427 | ||
4f2d528d LP |
4428 | if (s->state != SERVICE_DEAD) |
4429 | return -EAGAIN; | |
4430 | ||
3fabebf4 | 4431 | if (getpeername_pretty(fd, true, &peer_text) >= 0) { |
79a98c60 LP |
4432 | |
4433 | if (UNIT(s)->description) { | |
c2b2df60 | 4434 | _cleanup_free_ char *a = NULL; |
79a98c60 | 4435 | |
3fabebf4 | 4436 | a = strjoin(UNIT(s)->description, " (", peer_text, ")"); |
79a98c60 LP |
4437 | if (!a) |
4438 | return -ENOMEM; | |
4439 | ||
4440 | r = unit_set_description(UNIT(s), a); | |
4441 | } else | |
3fabebf4 | 4442 | r = unit_set_description(UNIT(s), peer_text); |
79a98c60 LP |
4443 | if (r < 0) |
4444 | return r; | |
4445 | } | |
4446 | ||
eef85c4a | 4447 | r = unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false, UNIT_DEPENDENCY_IMPLICIT); |
7f2fbbff LP |
4448 | if (r < 0) |
4449 | return r; | |
4450 | ||
4f2d528d | 4451 | s->socket_fd = fd; |
3fabebf4 | 4452 | s->socket_peer = socket_peer_ref(peer); |
16115b0a | 4453 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 4454 | |
7f7d01ed | 4455 | unit_ref_set(&s->accept_socket, UNIT(s), UNIT(sock)); |
7f2fbbff | 4456 | return 0; |
4f2d528d LP |
4457 | } |
4458 | ||
fdf20a31 | 4459 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
4460 | Service *s = SERVICE(u); |
4461 | ||
4462 | assert(s); | |
4463 | ||
fdf20a31 | 4464 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
4465 | service_set_state(s, SERVICE_DEAD); |
4466 | ||
f42806df LP |
4467 | s->result = SERVICE_SUCCESS; |
4468 | s->reload_result = SERVICE_SUCCESS; | |
4c2f5842 | 4469 | s->clean_result = SERVICE_SUCCESS; |
7a0019d3 LP |
4470 | s->n_restarts = 0; |
4471 | s->flush_n_restarts = false; | |
5632e374 LP |
4472 | } |
4473 | ||
718db961 | 4474 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 4475 | Service *s = SERVICE(u); |
41efeaec | 4476 | |
a6951a50 LP |
4477 | assert(s); |
4478 | ||
814cc562 | 4479 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
4480 | } |
4481 | ||
291d565a LP |
4482 | static int service_main_pid(Unit *u) { |
4483 | Service *s = SERVICE(u); | |
4484 | ||
4485 | assert(s); | |
4486 | ||
4487 | return s->main_pid; | |
4488 | } | |
4489 | ||
4490 | static int service_control_pid(Unit *u) { | |
4491 | Service *s = SERVICE(u); | |
4492 | ||
4493 | assert(s); | |
4494 | ||
4495 | return s->control_pid; | |
4496 | } | |
4497 | ||
bb2c7685 LP |
4498 | static bool service_needs_console(Unit *u) { |
4499 | Service *s = SERVICE(u); | |
4500 | ||
4501 | assert(s); | |
4502 | ||
4503 | /* We provide our own implementation of this here, instead of relying of the generic implementation | |
4504 | * unit_needs_console() provides, since we want to return false if we are in SERVICE_EXITED state. */ | |
4505 | ||
4506 | if (!exec_context_may_touch_console(&s->exec_context)) | |
4507 | return false; | |
4508 | ||
4509 | return IN_SET(s->state, | |
31cd5f63 | 4510 | SERVICE_CONDITION, |
bb2c7685 LP |
4511 | SERVICE_START_PRE, |
4512 | SERVICE_START, | |
4513 | SERVICE_START_POST, | |
4514 | SERVICE_RUNNING, | |
4515 | SERVICE_RELOAD, | |
4516 | SERVICE_STOP, | |
c87700a1 | 4517 | SERVICE_STOP_WATCHDOG, |
bb2c7685 LP |
4518 | SERVICE_STOP_SIGTERM, |
4519 | SERVICE_STOP_SIGKILL, | |
4520 | SERVICE_STOP_POST, | |
bf760801 | 4521 | SERVICE_FINAL_WATCHDOG, |
bb2c7685 LP |
4522 | SERVICE_FINAL_SIGTERM, |
4523 | SERVICE_FINAL_SIGKILL); | |
4524 | } | |
4525 | ||
7af67e9a LP |
4526 | static int service_exit_status(Unit *u) { |
4527 | Service *s = SERVICE(u); | |
4528 | ||
4529 | assert(u); | |
4530 | ||
4531 | if (s->main_exec_status.pid <= 0 || | |
4532 | !dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) | |
4533 | return -ENODATA; | |
4534 | ||
4535 | if (s->main_exec_status.code != CLD_EXITED) | |
4536 | return -EBADE; | |
4537 | ||
4538 | return s->main_exec_status.status; | |
4539 | } | |
4540 | ||
5e1669ff ZJS |
4541 | static const char* service_status_text(Unit *u) { |
4542 | Service *s = SERVICE(u); | |
4543 | ||
4544 | assert(s); | |
4545 | ||
4546 | return s->status_text; | |
4547 | } | |
4548 | ||
4c2f5842 LP |
4549 | static int service_clean(Unit *u, ExecCleanMask mask) { |
4550 | _cleanup_strv_free_ char **l = NULL; | |
4551 | Service *s = SERVICE(u); | |
4c2f5842 LP |
4552 | int r; |
4553 | ||
4554 | assert(s); | |
4555 | assert(mask != 0); | |
4556 | ||
4557 | if (s->state != SERVICE_DEAD) | |
4558 | return -EBUSY; | |
4559 | ||
4560 | r = exec_context_get_clean_directories(&s->exec_context, u->manager->prefix, mask, &l); | |
4561 | if (r < 0) | |
4562 | return r; | |
4563 | ||
4564 | if (strv_isempty(l)) | |
4565 | return -EUNATCH; | |
4566 | ||
4567 | service_unwatch_control_pid(s); | |
4568 | s->clean_result = SERVICE_SUCCESS; | |
4569 | s->control_command = NULL; | |
4570 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
4571 | ||
12213aed | 4572 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->exec_context.timeout_clean_usec)); |
4c2f5842 LP |
4573 | if (r < 0) |
4574 | goto fail; | |
4575 | ||
810ef318 | 4576 | r = unit_fork_and_watch_rm_rf(u, l, &s->control_pid); |
4c2f5842 LP |
4577 | if (r < 0) |
4578 | goto fail; | |
4579 | ||
4c2f5842 LP |
4580 | service_set_state(s, SERVICE_CLEANING); |
4581 | ||
4582 | return 0; | |
4583 | ||
4584 | fail: | |
810ef318 | 4585 | log_unit_warning_errno(u, r, "Failed to initiate cleaning: %m"); |
4c2f5842 | 4586 | s->clean_result = SERVICE_FAILURE_RESOURCES; |
5dcadb4c | 4587 | s->timer_event_source = sd_event_source_disable_unref(s->timer_event_source); |
4c2f5842 LP |
4588 | return r; |
4589 | } | |
4590 | ||
4591 | static int service_can_clean(Unit *u, ExecCleanMask *ret) { | |
4592 | Service *s = SERVICE(u); | |
4593 | ||
4594 | assert(s); | |
4595 | ||
4596 | return exec_context_get_clean_mask(&s->exec_context, ret); | |
4597 | } | |
4598 | ||
eda0cbf0 | 4599 | static const char *service_finished_job(Unit *u, JobType t, JobResult result) { |
04d232d8 ZJS |
4600 | if (t == JOB_START && |
4601 | result == JOB_DONE && | |
4602 | SERVICE(u)->type == SERVICE_ONESHOT) | |
4603 | return "Finished %s."; | |
eda0cbf0 ZJS |
4604 | |
4605 | /* Fall back to generic */ | |
4606 | return NULL; | |
4607 | } | |
4608 | ||
705578c3 | 4609 | static int service_can_start(Unit *u) { |
9727f242 DDM |
4610 | Service *s = SERVICE(u); |
4611 | int r; | |
4612 | ||
4613 | assert(s); | |
4614 | ||
4615 | /* Make sure we don't enter a busy loop of some kind. */ | |
4616 | r = unit_test_start_limit(u); | |
4617 | if (r < 0) { | |
4618 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT_HIT, false); | |
4619 | return r; | |
4620 | } | |
4621 | ||
705578c3 | 4622 | return 1; |
9727f242 DDM |
4623 | } |
4624 | ||
94f04347 | 4625 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
48d83e33 ZJS |
4626 | [SERVICE_RESTART_NO] = "no", |
4627 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
4628 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", | |
6cfe2fde | 4629 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 4630 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
48d83e33 ZJS |
4631 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
4632 | [SERVICE_RESTART_ALWAYS] = "always", | |
94f04347 LP |
4633 | }; |
4634 | ||
4635 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
4636 | ||
4637 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
48d83e33 | 4638 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 4639 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 4640 | [SERVICE_ONESHOT] = "oneshot", |
48d83e33 ZJS |
4641 | [SERVICE_DBUS] = "dbus", |
4642 | [SERVICE_NOTIFY] = "notify", | |
4643 | [SERVICE_IDLE] = "idle", | |
4644 | [SERVICE_EXEC] = "exec", | |
94f04347 LP |
4645 | }; |
4646 | ||
4647 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
4648 | ||
596e4470 | 4649 | static const char* const service_exit_type_table[_SERVICE_EXIT_TYPE_MAX] = { |
fb138166 | 4650 | [SERVICE_EXIT_MAIN] = "main", |
596e4470 HC |
4651 | [SERVICE_EXIT_CGROUP] = "cgroup", |
4652 | }; | |
4653 | ||
4654 | DEFINE_STRING_TABLE_LOOKUP(service_exit_type, ServiceExitType); | |
4655 | ||
e537352b | 4656 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
48d83e33 ZJS |
4657 | [SERVICE_EXEC_CONDITION] = "ExecCondition", |
4658 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", | |
4659 | [SERVICE_EXEC_START] = "ExecStart", | |
94f04347 | 4660 | [SERVICE_EXEC_START_POST] = "ExecStartPost", |
48d83e33 ZJS |
4661 | [SERVICE_EXEC_RELOAD] = "ExecReload", |
4662 | [SERVICE_EXEC_STOP] = "ExecStop", | |
4663 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
94f04347 LP |
4664 | }; |
4665 | ||
4666 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
4667 | ||
b3d59367 | 4668 | static const char* const service_exec_ex_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
48d83e33 ZJS |
4669 | [SERVICE_EXEC_CONDITION] = "ExecConditionEx", |
4670 | [SERVICE_EXEC_START_PRE] = "ExecStartPreEx", | |
4671 | [SERVICE_EXEC_START] = "ExecStartEx", | |
b3d59367 | 4672 | [SERVICE_EXEC_START_POST] = "ExecStartPostEx", |
48d83e33 ZJS |
4673 | [SERVICE_EXEC_RELOAD] = "ExecReloadEx", |
4674 | [SERVICE_EXEC_STOP] = "ExecStopEx", | |
4675 | [SERVICE_EXEC_STOP_POST] = "ExecStopPostEx", | |
b3d59367 AZ |
4676 | }; |
4677 | ||
4678 | DEFINE_STRING_TABLE_LOOKUP(service_exec_ex_command, ServiceExecCommand); | |
4679 | ||
308d72dc | 4680 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
48d83e33 ZJS |
4681 | [NOTIFY_UNKNOWN] = "unknown", |
4682 | [NOTIFY_READY] = "ready", | |
308d72dc | 4683 | [NOTIFY_RELOADING] = "reloading", |
48d83e33 | 4684 | [NOTIFY_STOPPING] = "stopping", |
308d72dc LP |
4685 | }; |
4686 | ||
4687 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
4688 | ||
f42806df | 4689 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
48d83e33 ZJS |
4690 | [SERVICE_SUCCESS] = "success", |
4691 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
4692 | [SERVICE_FAILURE_PROTOCOL] = "protocol", | |
4693 | [SERVICE_FAILURE_TIMEOUT] = "timeout", | |
4694 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
4695 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
4696 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", | |
4697 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", | |
07299350 | 4698 | [SERVICE_FAILURE_START_LIMIT_HIT] = "start-limit-hit", |
48d83e33 ZJS |
4699 | [SERVICE_FAILURE_OOM_KILL] = "oom-kill", |
4700 | [SERVICE_SKIP_CONDITION] = "exec-condition", | |
f42806df LP |
4701 | }; |
4702 | ||
4703 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
4704 | ||
bf760801 JK |
4705 | static const char* const service_timeout_failure_mode_table[_SERVICE_TIMEOUT_FAILURE_MODE_MAX] = { |
4706 | [SERVICE_TIMEOUT_TERMINATE] = "terminate", | |
48d83e33 ZJS |
4707 | [SERVICE_TIMEOUT_ABORT] = "abort", |
4708 | [SERVICE_TIMEOUT_KILL] = "kill", | |
bf760801 JK |
4709 | }; |
4710 | ||
4711 | DEFINE_STRING_TABLE_LOOKUP(service_timeout_failure_mode, ServiceTimeoutFailureMode); | |
4712 | ||
87f0e418 | 4713 | const UnitVTable service_vtable = { |
7d17cfbc | 4714 | .object_size = sizeof(Service), |
718db961 LP |
4715 | .exec_context_offset = offsetof(Service, exec_context), |
4716 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
4717 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 4718 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
29206d46 | 4719 | .dynamic_creds_offset = offsetof(Service, dynamic_creds), |
3ef63c31 | 4720 | |
f975e971 LP |
4721 | .sections = |
4722 | "Unit\0" | |
4723 | "Service\0" | |
4724 | "Install\0", | |
4ad49000 | 4725 | .private_section = "Service", |
71645aca | 4726 | |
1d9cc876 LP |
4727 | .can_transient = true, |
4728 | .can_delegate = true, | |
c80a9a33 | 4729 | .can_fail = true, |
4d824a4e | 4730 | .can_set_managed_oom = true, |
1d9cc876 | 4731 | |
034c6ed7 LP |
4732 | .init = service_init, |
4733 | .done = service_done, | |
a16e1123 | 4734 | .load = service_load, |
a354329f | 4735 | .release_resources = service_release_resources, |
a16e1123 LP |
4736 | |
4737 | .coldplug = service_coldplug, | |
034c6ed7 | 4738 | |
5cb5a6ff LP |
4739 | .dump = service_dump, |
4740 | ||
4741 | .start = service_start, | |
4742 | .stop = service_stop, | |
4743 | .reload = service_reload, | |
4744 | ||
034c6ed7 LP |
4745 | .can_reload = service_can_reload, |
4746 | ||
8a0867d6 | 4747 | .kill = service_kill, |
4c2f5842 LP |
4748 | .clean = service_clean, |
4749 | .can_clean = service_can_clean, | |
8a0867d6 | 4750 | |
d9e45bc3 MS |
4751 | .freeze = unit_freeze_vtable_common, |
4752 | .thaw = unit_thaw_vtable_common, | |
4753 | ||
a16e1123 LP |
4754 | .serialize = service_serialize, |
4755 | .deserialize_item = service_deserialize_item, | |
4756 | ||
5cb5a6ff | 4757 | .active_state = service_active_state, |
10a94420 | 4758 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 4759 | |
deb4e708 MK |
4760 | .will_restart = service_will_restart, |
4761 | ||
f2f725e5 | 4762 | .may_gc = service_may_gc, |
701cc384 | 4763 | |
034c6ed7 | 4764 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 4765 | |
fdf20a31 | 4766 | .reset_failed = service_reset_failed, |
5632e374 | 4767 | |
4ad49000 | 4768 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
afcfaa69 | 4769 | .notify_cgroup_oom = service_notify_cgroup_oom_event, |
8c47c732 | 4770 | .notify_message = service_notify_message, |
8e274523 | 4771 | |
291d565a LP |
4772 | .main_pid = service_main_pid, |
4773 | .control_pid = service_control_pid, | |
4774 | ||
05e343b7 | 4775 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 4776 | |
74c964d3 LP |
4777 | .bus_set_property = bus_service_set_property, |
4778 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 4779 | |
68db7a3b | 4780 | .get_timeout = service_get_timeout, |
bb2c7685 | 4781 | .needs_console = service_needs_console, |
7af67e9a | 4782 | .exit_status = service_exit_status, |
5e1669ff | 4783 | .status_text = service_status_text, |
718db961 | 4784 | |
c6918296 | 4785 | .status_message_formats = { |
c6918296 | 4786 | .finished_start_job = { |
c6918296 | 4787 | [JOB_FAILED] = "Failed to start %s.", |
c6918296 MS |
4788 | }, |
4789 | .finished_stop_job = { | |
4790 | [JOB_DONE] = "Stopped %s.", | |
4791 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 | 4792 | }, |
eda0cbf0 | 4793 | .finished_job = service_finished_job, |
c6918296 | 4794 | }, |
9727f242 | 4795 | |
705578c3 | 4796 | .can_start = service_can_start, |
5cb5a6ff | 4797 | }; |