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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
a7334b09 | 2 | |
5cb5a6ff | 3 | #include <errno.h> |
034c6ed7 | 4 | #include <signal.h> |
ca78ad1d ZJS |
5 | #include <sys/stat.h> |
6 | #include <sys/types.h> | |
2c4104f0 | 7 | #include <unistd.h> |
5cb5a6ff | 8 | |
7a0019d3 LP |
9 | #include "sd-messages.h" |
10 | ||
b5efdb8a | 11 | #include "alloc-util.h" |
574634bc | 12 | #include "async.h" |
4f5dd394 LP |
13 | #include "bus-error.h" |
14 | #include "bus-kernel.h" | |
15 | #include "bus-util.h" | |
4139c1b2 | 16 | #include "dbus-service.h" |
6fcbec6f | 17 | #include "dbus-unit.h" |
f6a6225e | 18 | #include "def.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" |
f4f15635 | 25 | #include "fs-util.h" |
4f5dd394 LP |
26 | #include "load-dropin.h" |
27 | #include "load-fragment.h" | |
28 | #include "log.h" | |
29 | #include "manager.h" | |
6bedfcbb | 30 | #include "parse-util.h" |
4f5dd394 | 31 | #include "path-util.h" |
0b452006 | 32 | #include "process-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" | |
44 | #include "util.h" | |
034c6ed7 | 45 | |
acbb0225 | 46 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 | 47 | [SERVICE_DEAD] = UNIT_INACTIVE, |
31cd5f63 | 48 | [SERVICE_CONDITION] = UNIT_ACTIVATING, |
87f0e418 LP |
49 | [SERVICE_START_PRE] = UNIT_ACTIVATING, |
50 | [SERVICE_START] = UNIT_ACTIVATING, | |
51 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
52 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 53 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 54 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 | 55 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
c87700a1 | 56 | [SERVICE_STOP_WATCHDOG] = UNIT_DEACTIVATING, |
87f0e418 LP |
57 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
58 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
59 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
60 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
61 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 62 | [SERVICE_FAILED] = UNIT_FAILED, |
4c2f5842 LP |
63 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, |
64 | [SERVICE_CLEANING] = UNIT_MAINTENANCE, | |
034c6ed7 | 65 | }; |
5cb5a6ff | 66 | |
e056b01d LP |
67 | /* For Type=idle we never want to delay any other jobs, hence we |
68 | * consider idle jobs active as soon as we start working on them */ | |
69 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
70 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
31cd5f63 | 71 | [SERVICE_CONDITION] = UNIT_ACTIVE, |
e056b01d LP |
72 | [SERVICE_START_PRE] = UNIT_ACTIVE, |
73 | [SERVICE_START] = UNIT_ACTIVE, | |
74 | [SERVICE_START_POST] = UNIT_ACTIVE, | |
75 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
76 | [SERVICE_EXITED] = UNIT_ACTIVE, | |
77 | [SERVICE_RELOAD] = UNIT_RELOADING, | |
78 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
c87700a1 | 79 | [SERVICE_STOP_WATCHDOG] = UNIT_DEACTIVATING, |
e056b01d LP |
80 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
81 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
82 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
83 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
84 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
85 | [SERVICE_FAILED] = UNIT_FAILED, | |
4c2f5842 LP |
86 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, |
87 | [SERVICE_CLEANING] = UNIT_MAINTENANCE, | |
e056b01d LP |
88 | }; |
89 | ||
5686391b | 90 | static int service_dispatch_inotify_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
718db961 LP |
91 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); |
92 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); | |
5686391b | 93 | static int service_dispatch_exec_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
718db961 | 94 | |
842129f5 | 95 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
308d72dc | 96 | static void service_enter_reload_by_notify(Service *s); |
842129f5 | 97 | |
a16e1123 LP |
98 | static void service_init(Unit *u) { |
99 | Service *s = SERVICE(u); | |
100 | ||
101 | assert(u); | |
ac155bb8 | 102 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 103 | |
1f19a534 OS |
104 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
105 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
dc653bf4 JK |
106 | s->timeout_abort_usec = u->manager->default_timeout_abort_usec; |
107 | s->timeout_abort_set = u->manager->default_timeout_abort_set; | |
1f19a534 | 108 | s->restart_usec = u->manager->default_restart_usec; |
36c16a7c | 109 | s->runtime_max_usec = USEC_INFINITY; |
0b86feac | 110 | s->type = _SERVICE_TYPE_INVALID; |
a16e1123 | 111 | s->socket_fd = -1; |
a34ceba6 | 112 | s->stdin_fd = s->stdout_fd = s->stderr_fd = -1; |
3185a36b | 113 | s->guess_main_pid = true; |
a16e1123 | 114 | |
a16e1123 | 115 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
00f5ad93 LP |
116 | |
117 | s->exec_context.keyring_mode = MANAGER_IS_SYSTEM(u->manager) ? | |
118 | EXEC_KEYRING_PRIVATE : EXEC_KEYRING_INHERIT; | |
aa8c4bbf LP |
119 | |
120 | s->watchdog_original_usec = USEC_INFINITY; | |
afcfaa69 LP |
121 | |
122 | s->oom_policy = _OOM_POLICY_INVALID; | |
a16e1123 LP |
123 | } |
124 | ||
5e94833f LP |
125 | static void service_unwatch_control_pid(Service *s) { |
126 | assert(s); | |
127 | ||
128 | if (s->control_pid <= 0) | |
129 | return; | |
130 | ||
131 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
132 | s->control_pid = 0; | |
133 | } | |
134 | ||
135 | static void service_unwatch_main_pid(Service *s) { | |
136 | assert(s); | |
137 | ||
138 | if (s->main_pid <= 0) | |
139 | return; | |
140 | ||
141 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
142 | s->main_pid = 0; | |
143 | } | |
144 | ||
3e52541e MS |
145 | static void service_unwatch_pid_file(Service *s) { |
146 | if (!s->pid_file_pathspec) | |
147 | return; | |
148 | ||
f2341e0a | 149 | log_unit_debug(UNIT(s), "Stopping watch for PID file %s", s->pid_file_pathspec->path); |
718db961 | 150 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e | 151 | path_spec_done(s->pid_file_pathspec); |
a1e58e8e | 152 | s->pid_file_pathspec = mfree(s->pid_file_pathspec); |
3e52541e MS |
153 | } |
154 | ||
5925dd3c LP |
155 | static int service_set_main_pid(Service *s, pid_t pid) { |
156 | assert(s); | |
157 | ||
158 | if (pid <= 1) | |
159 | return -EINVAL; | |
160 | ||
df0ff127 | 161 | if (pid == getpid_cached()) |
5925dd3c LP |
162 | return -EINVAL; |
163 | ||
7400b9d2 LP |
164 | if (s->main_pid == pid && s->main_pid_known) |
165 | return 0; | |
166 | ||
167 | if (s->main_pid != pid) { | |
168 | service_unwatch_main_pid(s); | |
169 | exec_status_start(&s->main_exec_status, pid); | |
170 | } | |
41efeaec | 171 | |
6dfa5494 LP |
172 | s->main_pid = pid; |
173 | s->main_pid_known = true; | |
4d051546 | 174 | s->main_pid_alien = pid_is_my_child(pid) == 0; |
6dfa5494 | 175 | |
4d051546 | 176 | if (s->main_pid_alien) |
f2341e0a | 177 | log_unit_warning(UNIT(s), "Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.", pid); |
5925dd3c LP |
178 | |
179 | return 0; | |
180 | } | |
181 | ||
3e7a1f50 | 182 | void service_close_socket_fd(Service *s) { |
4f2d528d LP |
183 | assert(s); |
184 | ||
5cc3985e | 185 | /* Undo the effect of service_set_socket_fd(). */ |
4f2d528d | 186 | |
5cc3985e | 187 | s->socket_fd = asynchronous_close(s->socket_fd); |
6cf6bbc2 | 188 | |
5cc3985e LP |
189 | if (UNIT_ISSET(s->accept_socket)) { |
190 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); | |
191 | unit_ref_unset(&s->accept_socket); | |
192 | } | |
6cf6bbc2 LP |
193 | } |
194 | ||
a6927d7f MO |
195 | static void service_stop_watchdog(Service *s) { |
196 | assert(s); | |
197 | ||
718db961 | 198 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
842129f5 | 199 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
200 | } |
201 | ||
2787d83c M |
202 | static usec_t service_get_watchdog_usec(Service *s) { |
203 | assert(s); | |
204 | ||
205 | if (s->watchdog_override_enable) | |
206 | return s->watchdog_override_usec; | |
9fb1cdb4 LP |
207 | |
208 | return s->watchdog_original_usec; | |
2787d83c M |
209 | } |
210 | ||
842129f5 | 211 | static void service_start_watchdog(Service *s) { |
2787d83c | 212 | usec_t watchdog_usec; |
9fb1cdb4 | 213 | int r; |
bb242b7b MO |
214 | |
215 | assert(s); | |
216 | ||
2787d83c | 217 | watchdog_usec = service_get_watchdog_usec(s); |
9fb1cdb4 LP |
218 | if (IN_SET(watchdog_usec, 0, USEC_INFINITY)) { |
219 | service_stop_watchdog(s); | |
bb242b7b | 220 | return; |
9fb1cdb4 | 221 | } |
bb242b7b | 222 | |
718db961 | 223 | if (s->watchdog_event_source) { |
2787d83c | 224 | r = sd_event_source_set_time(s->watchdog_event_source, usec_add(s->watchdog_timestamp.monotonic, watchdog_usec)); |
718db961 | 225 | if (r < 0) { |
f2341e0a | 226 | log_unit_warning_errno(UNIT(s), r, "Failed to reset watchdog timer: %m"); |
718db961 LP |
227 | return; |
228 | } | |
229 | ||
842129f5 | 230 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 231 | } else { |
6a0f1f6d LP |
232 | r = sd_event_add_time( |
233 | UNIT(s)->manager->event, | |
234 | &s->watchdog_event_source, | |
235 | CLOCK_MONOTONIC, | |
2787d83c | 236 | usec_add(s->watchdog_timestamp.monotonic, watchdog_usec), 0, |
6a0f1f6d | 237 | service_dispatch_watchdog, s); |
c4ef3317 | 238 | if (r < 0) { |
f2341e0a | 239 | log_unit_warning_errno(UNIT(s), r, "Failed to add watchdog timer: %m"); |
c4ef3317 LP |
240 | return; |
241 | } | |
242 | ||
7dfbe2e3 TG |
243 | (void) sd_event_source_set_description(s->watchdog_event_source, "service-watchdog"); |
244 | ||
c4ef3317 LP |
245 | /* Let's process everything else which might be a sign |
246 | * of living before we consider a service died. */ | |
247 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
248 | } | |
bb242b7b | 249 | if (r < 0) |
f2341e0a | 250 | log_unit_warning_errno(UNIT(s), r, "Failed to install watchdog timer: %m"); |
bb242b7b MO |
251 | } |
252 | ||
ec35a7f6 LP |
253 | static void service_extend_event_source_timeout(Service *s, sd_event_source *source, usec_t extended) { |
254 | usec_t current; | |
255 | int r; | |
256 | ||
a327431b DB |
257 | assert(s); |
258 | ||
ec35a7f6 LP |
259 | /* Extends the specified event source timer to at least the specified time, unless it is already later |
260 | * anyway. */ | |
a327431b | 261 | |
ec35a7f6 LP |
262 | if (!source) |
263 | return; | |
a327431b | 264 | |
ec35a7f6 LP |
265 | r = sd_event_source_get_time(source, ¤t); |
266 | if (r < 0) { | |
267 | const char *desc; | |
268 | (void) sd_event_source_get_description(s->timer_event_source, &desc); | |
269 | log_unit_warning_errno(UNIT(s), r, "Failed to retrieve timeout time for event source '%s', ignoring: %m", strna(desc)); | |
270 | return; | |
271 | } | |
a327431b | 272 | |
ec35a7f6 LP |
273 | if (current >= extended) /* Current timeout is already longer, ignore this. */ |
274 | return; | |
a327431b | 275 | |
ec35a7f6 LP |
276 | r = sd_event_source_set_time(source, extended); |
277 | if (r < 0) { | |
278 | const char *desc; | |
279 | (void) sd_event_source_get_description(s->timer_event_source, &desc); | |
280 | log_unit_warning_errno(UNIT(s), r, "Failed to set timeout time for even source '%s', ignoring %m", strna(desc)); | |
a327431b DB |
281 | } |
282 | } | |
283 | ||
ec35a7f6 LP |
284 | static void service_extend_timeout(Service *s, usec_t extend_timeout_usec) { |
285 | usec_t extended; | |
286 | ||
287 | assert(s); | |
288 | ||
289 | if (IN_SET(extend_timeout_usec, 0, USEC_INFINITY)) | |
290 | return; | |
291 | ||
292 | extended = usec_add(now(CLOCK_MONOTONIC), extend_timeout_usec); | |
293 | ||
294 | service_extend_event_source_timeout(s, s->timer_event_source, extended); | |
295 | service_extend_event_source_timeout(s, s->watchdog_event_source, extended); | |
296 | } | |
297 | ||
a6927d7f MO |
298 | static void service_reset_watchdog(Service *s) { |
299 | assert(s); | |
300 | ||
301 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 302 | service_start_watchdog(s); |
a6927d7f MO |
303 | } |
304 | ||
95d0d8ed | 305 | static void service_override_watchdog_timeout(Service *s, usec_t watchdog_override_usec) { |
2787d83c M |
306 | assert(s); |
307 | ||
308 | s->watchdog_override_enable = true; | |
309 | s->watchdog_override_usec = watchdog_override_usec; | |
310 | service_reset_watchdog(s); | |
311 | ||
312 | log_unit_debug(UNIT(s), "watchdog_usec="USEC_FMT, s->watchdog_usec); | |
313 | log_unit_debug(UNIT(s), "watchdog_override_usec="USEC_FMT, s->watchdog_override_usec); | |
314 | } | |
315 | ||
a354329f LP |
316 | static void service_fd_store_unlink(ServiceFDStore *fs) { |
317 | ||
318 | if (!fs) | |
319 | return; | |
320 | ||
321 | if (fs->service) { | |
322 | assert(fs->service->n_fd_store > 0); | |
323 | LIST_REMOVE(fd_store, fs->service->fd_store, fs); | |
324 | fs->service->n_fd_store--; | |
325 | } | |
326 | ||
1d3fe304 | 327 | sd_event_source_disable_unref(fs->event_source); |
a354329f | 328 | |
8dd4c05b | 329 | free(fs->fdname); |
a354329f LP |
330 | safe_close(fs->fd); |
331 | free(fs); | |
332 | } | |
333 | ||
f0bfbfac ZJS |
334 | static void service_release_fd_store(Service *s) { |
335 | assert(s); | |
336 | ||
7eb2a8a1 LP |
337 | if (s->n_keep_fd_store > 0) |
338 | return; | |
339 | ||
f0bfbfac ZJS |
340 | log_unit_debug(UNIT(s), "Releasing all stored fds"); |
341 | while (s->fd_store) | |
342 | service_fd_store_unlink(s->fd_store); | |
343 | ||
344 | assert(s->n_fd_store == 0); | |
345 | } | |
346 | ||
7eb2a8a1 | 347 | static void service_release_resources(Unit *u) { |
a354329f LP |
348 | Service *s = SERVICE(u); |
349 | ||
350 | assert(s); | |
351 | ||
a34ceba6 | 352 | if (!s->fd_store && s->stdin_fd < 0 && s->stdout_fd < 0 && s->stderr_fd < 0) |
a354329f LP |
353 | return; |
354 | ||
f0bfbfac | 355 | log_unit_debug(u, "Releasing resources."); |
a354329f | 356 | |
a34ceba6 LP |
357 | s->stdin_fd = safe_close(s->stdin_fd); |
358 | s->stdout_fd = safe_close(s->stdout_fd); | |
359 | s->stderr_fd = safe_close(s->stderr_fd); | |
360 | ||
7eb2a8a1 | 361 | service_release_fd_store(s); |
a354329f LP |
362 | } |
363 | ||
87f0e418 LP |
364 | static void service_done(Unit *u) { |
365 | Service *s = SERVICE(u); | |
44d8db9e LP |
366 | |
367 | assert(s); | |
368 | ||
a1e58e8e LP |
369 | s->pid_file = mfree(s->pid_file); |
370 | s->status_text = mfree(s->status_text); | |
efe6e7d3 | 371 | |
e8a565cb | 372 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, false); |
e537352b | 373 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 374 | s->control_command = NULL; |
867b3b7d | 375 | s->main_command = NULL; |
44d8db9e | 376 | |
29206d46 LP |
377 | dynamic_creds_unref(&s->dynamic_creds); |
378 | ||
37520c1b LP |
379 | exit_status_set_free(&s->restart_prevent_status); |
380 | exit_status_set_free(&s->restart_force_status); | |
381 | exit_status_set_free(&s->success_status); | |
96342de6 | 382 | |
44d8db9e LP |
383 | /* This will leak a process, but at least no memory or any of |
384 | * our resources */ | |
5e94833f LP |
385 | service_unwatch_main_pid(s); |
386 | service_unwatch_control_pid(s); | |
3e52541e | 387 | service_unwatch_pid_file(s); |
44d8db9e | 388 | |
05e343b7 | 389 | if (s->bus_name) { |
ac155bb8 | 390 | unit_unwatch_bus_name(u, s->bus_name); |
a1e58e8e | 391 | s->bus_name = mfree(s->bus_name); |
05e343b7 LP |
392 | } |
393 | ||
d8ccf5fd DM |
394 | s->bus_name_owner = mfree(s->bus_name_owner); |
395 | ||
064c5938 ZJS |
396 | s->usb_function_descriptors = mfree(s->usb_function_descriptors); |
397 | s->usb_function_strings = mfree(s->usb_function_strings); | |
398 | ||
4f2d528d | 399 | service_close_socket_fd(s); |
9d565427 | 400 | s->peer = socket_peer_unref(s->peer); |
4f2d528d | 401 | |
57020a3a | 402 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 403 | |
bb242b7b MO |
404 | service_stop_watchdog(s); |
405 | ||
718db961 | 406 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
5686391b | 407 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); |
a354329f | 408 | |
7eb2a8a1 | 409 | service_release_resources(u); |
718db961 LP |
410 | } |
411 | ||
2339fc93 LP |
412 | static int on_fd_store_io(sd_event_source *e, int fd, uint32_t revents, void *userdata) { |
413 | ServiceFDStore *fs = userdata; | |
414 | ||
415 | assert(e); | |
416 | assert(fs); | |
417 | ||
418 | /* If we get either EPOLLHUP or EPOLLERR, it's time to remove this entry from the fd store */ | |
16f70d63 ZJS |
419 | log_unit_debug(UNIT(fs->service), |
420 | "Received %s on stored fd %d (%s), closing.", | |
421 | revents & EPOLLERR ? "EPOLLERR" : "EPOLLHUP", | |
422 | fs->fd, strna(fs->fdname)); | |
2339fc93 LP |
423 | service_fd_store_unlink(fs); |
424 | return 0; | |
425 | } | |
426 | ||
8dd4c05b | 427 | static int service_add_fd_store(Service *s, int fd, const char *name) { |
2339fc93 LP |
428 | ServiceFDStore *fs; |
429 | int r; | |
430 | ||
9021ff17 ZJS |
431 | /* fd is always consumed if we return >= 0 */ |
432 | ||
2339fc93 LP |
433 | assert(s); |
434 | assert(fd >= 0); | |
435 | ||
436 | if (s->n_fd_store >= s->n_fd_store_max) | |
b0924635 ZJS |
437 | return -EXFULL; /* Our store is full. |
438 | * Use this errno rather than E[NM]FILE to distinguish from | |
439 | * the case where systemd itself hits the file limit. */ | |
2339fc93 LP |
440 | |
441 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
442 | r = same_fd(fs->fd, fd); | |
443 | if (r < 0) | |
444 | return r; | |
445 | if (r > 0) { | |
2339fc93 | 446 | safe_close(fd); |
9021ff17 | 447 | return 0; /* fd already included */ |
2339fc93 LP |
448 | } |
449 | } | |
450 | ||
451 | fs = new0(ServiceFDStore, 1); | |
452 | if (!fs) | |
453 | return -ENOMEM; | |
454 | ||
455 | fs->fd = fd; | |
456 | fs->service = s; | |
8dd4c05b | 457 | fs->fdname = strdup(name ?: "stored"); |
17dec0f7 | 458 | if (!fs->fdname) { |
459 | free(fs); | |
8dd4c05b | 460 | return -ENOMEM; |
17dec0f7 | 461 | } |
2339fc93 LP |
462 | |
463 | r = sd_event_add_io(UNIT(s)->manager->event, &fs->event_source, fd, 0, on_fd_store_io, fs); | |
3ceb72e5 | 464 | if (r < 0 && r != -EPERM) { /* EPERM indicates fds that aren't pollable, which is OK */ |
8dd4c05b | 465 | free(fs->fdname); |
2339fc93 LP |
466 | free(fs); |
467 | return r; | |
3ceb72e5 LP |
468 | } else if (r >= 0) |
469 | (void) sd_event_source_set_description(fs->event_source, "service-fd-store"); | |
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 | ||
8dd4c05b | 477 | static int service_add_fd_store_set(Service *s, FDSet *fds, const char *name) { |
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 | ||
8dd4c05b | 489 | r = service_add_fd_store(s, fd, name); |
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) |
16f70d63 | 497 | log_unit_debug(UNIT(s), "Added fd %u (%s) to fd store.", fd, strna(name)); |
9021ff17 | 498 | fd = -1; |
2339fc93 LP |
499 | } |
500 | ||
2339fc93 LP |
501 | return 0; |
502 | } | |
503 | ||
e78ee06d LP |
504 | static void service_remove_fd_store(Service *s, const char *name) { |
505 | ServiceFDStore *fs, *n; | |
506 | ||
507 | assert(s); | |
508 | assert(name); | |
509 | ||
510 | LIST_FOREACH_SAFE(fd_store, fs, n, s->fd_store) { | |
511 | if (!streq(fs->fdname, name)) | |
512 | continue; | |
513 | ||
514 | log_unit_debug(UNIT(s), "Got explicit request to remove fd %i (%s), closing.", fs->fd, name); | |
515 | service_fd_store_unlink(fs); | |
516 | } | |
517 | } | |
518 | ||
718db961 LP |
519 | static int service_arm_timer(Service *s, usec_t usec) { |
520 | int r; | |
521 | ||
522 | assert(s); | |
523 | ||
718db961 | 524 | if (s->timer_event_source) { |
36c16a7c | 525 | r = sd_event_source_set_time(s->timer_event_source, usec); |
718db961 LP |
526 | if (r < 0) |
527 | return r; | |
528 | ||
529 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
530 | } | |
531 | ||
36c16a7c LP |
532 | if (usec == USEC_INFINITY) |
533 | return 0; | |
534 | ||
7dfbe2e3 | 535 | r = sd_event_add_time( |
6a0f1f6d LP |
536 | UNIT(s)->manager->event, |
537 | &s->timer_event_source, | |
538 | CLOCK_MONOTONIC, | |
36c16a7c | 539 | usec, 0, |
6a0f1f6d | 540 | service_dispatch_timer, s); |
7dfbe2e3 TG |
541 | if (r < 0) |
542 | return r; | |
543 | ||
544 | (void) sd_event_source_set_description(s->timer_event_source, "service-timer"); | |
545 | ||
546 | return 0; | |
44d8db9e LP |
547 | } |
548 | ||
243b1432 LP |
549 | static int service_verify(Service *s) { |
550 | assert(s); | |
551 | ||
1124fe6f | 552 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
553 | return 0; |
554 | ||
3f00d379 ZJS |
555 | if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP] |
556 | && UNIT(s)->success_action == EMERGENCY_ACTION_NONE) { | |
557 | /* FailureAction= only makes sense if one of the start or stop commands is specified. | |
558 | * SuccessAction= will be executed unconditionally if no commands are specified. Hence, | |
559 | * either a command or SuccessAction= are required. */ | |
560 | ||
561 | log_unit_error(UNIT(s), "Service has no ExecStart=, ExecStop=, or SuccessAction=. Refusing."); | |
6f40aa45 | 562 | return -ENOEXEC; |
243b1432 LP |
563 | } |
564 | ||
96fb8242 | 565 | if (s->type != SERVICE_ONESHOT && !s->exec_command[SERVICE_EXEC_START]) { |
f2341e0a | 566 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 567 | return -ENOEXEC; |
96fb8242 LP |
568 | } |
569 | ||
3f00d379 ZJS |
570 | if (!s->remain_after_exit && !s->exec_command[SERVICE_EXEC_START] && UNIT(s)->success_action == EMERGENCY_ACTION_NONE) { |
571 | log_unit_error(UNIT(s), "Service has no ExecStart= and no SuccessAction= settings and does not have RemainAfterExit=yes set. Refusing."); | |
6f40aa45 | 572 | return -ENOEXEC; |
96fb8242 LP |
573 | } |
574 | ||
575 | if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) { | |
f2341e0a | 576 | log_unit_error(UNIT(s), "Service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 577 | return -ENOEXEC; |
6cf6bbc2 LP |
578 | } |
579 | ||
b0693d30 | 580 | if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { |
f2341e0a | 581 | log_unit_error(UNIT(s), "Service has Restart= setting other than no, which isn't allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 582 | return -ENOEXEC; |
37520c1b LP |
583 | } |
584 | ||
55ebf98c | 585 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) { |
f2341e0a | 586 | log_unit_error(UNIT(s), "Service has RestartForceStatus= set, which isn't allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 587 | return -ENOEXEC; |
b0693d30 MW |
588 | } |
589 | ||
05e343b7 | 590 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
f2341e0a | 591 | log_unit_error(UNIT(s), "Service is of type D-Bus but no D-Bus service name has been specified. Refusing."); |
6f40aa45 | 592 | return -ENOEXEC; |
4d0e5dbd LP |
593 | } |
594 | ||
7e2668c6 | 595 | if (s->bus_name && s->type != SERVICE_DBUS) |
f2341e0a | 596 | log_unit_warning(UNIT(s), "Service has a D-Bus service name specified, but is not of type dbus. Ignoring."); |
7e2668c6 | 597 | |
3742095b | 598 | if (s->exec_context.pam_name && !IN_SET(s->kill_context.kill_mode, KILL_CONTROL_GROUP, KILL_MIXED)) { |
f2341e0a | 599 | log_unit_error(UNIT(s), "Service has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing."); |
6f40aa45 | 600 | return -ENOEXEC; |
05e343b7 LP |
601 | } |
602 | ||
6b7e5923 PS |
603 | if (s->usb_function_descriptors && !s->usb_function_strings) |
604 | log_unit_warning(UNIT(s), "Service has USBFunctionDescriptors= setting, but no USBFunctionStrings=. Ignoring."); | |
605 | ||
606 | if (!s->usb_function_descriptors && s->usb_function_strings) | |
607 | log_unit_warning(UNIT(s), "Service has USBFunctionStrings= setting, but no USBFunctionDescriptors=. Ignoring."); | |
608 | ||
36c16a7c | 609 | if (s->runtime_max_usec != USEC_INFINITY && s->type == SERVICE_ONESHOT) |
226a08f2 | 610 | log_unit_warning(UNIT(s), "RuntimeMaxSec= has no effect in combination with Type=oneshot. Ignoring."); |
36c16a7c | 611 | |
243b1432 LP |
612 | return 0; |
613 | } | |
614 | ||
a40eb732 LP |
615 | static int service_add_default_dependencies(Service *s) { |
616 | int r; | |
617 | ||
618 | assert(s); | |
619 | ||
45f06b34 LP |
620 | if (!UNIT(s)->default_dependencies) |
621 | return 0; | |
622 | ||
a40eb732 LP |
623 | /* Add a number of automatic dependencies useful for the |
624 | * majority of services. */ | |
625 | ||
463d0d15 | 626 | if (MANAGER_IS_SYSTEM(UNIT(s)->manager)) { |
cb4c247d LP |
627 | /* First, pull in the really early boot stuff, and |
628 | * require it, so that we fail if we can't acquire | |
629 | * it. */ | |
630 | ||
5a724170 | 631 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
cb4c247d LP |
632 | if (r < 0) |
633 | return r; | |
634 | } else { | |
635 | ||
636 | /* In the --user instance there's no sysinit.target, | |
637 | * in that case require basic.target instead. */ | |
638 | ||
35d8c19a | 639 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
cb4c247d LP |
640 | if (r < 0) |
641 | return r; | |
642 | } | |
643 | ||
644 | /* Second, if the rest of the base system is in the same | |
645 | * transaction, order us after it, but do not pull it in or | |
646 | * even require it. */ | |
35d8c19a | 647 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
fccd44ec KS |
648 | if (r < 0) |
649 | return r; | |
a40eb732 | 650 | |
cb4c247d | 651 | /* Third, add us in for normal shutdown. */ |
5a724170 | 652 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
a40eb732 LP |
653 | } |
654 | ||
4dfc092a LP |
655 | static void service_fix_output(Service *s) { |
656 | assert(s); | |
657 | ||
08f3be7a LP |
658 | /* If nothing has been explicitly configured, patch default output in. If input is socket/tty we avoid this |
659 | * however, since in that case we want output to default to the same place as we read input from. */ | |
4dfc092a LP |
660 | |
661 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
662 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
663 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 664 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
665 | |
666 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
667 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 668 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
08f3be7a LP |
669 | |
670 | if (s->exec_context.std_input == EXEC_INPUT_NULL && | |
671 | s->exec_context.stdin_data_size > 0) | |
672 | s->exec_context.std_input = EXEC_INPUT_DATA; | |
4dfc092a LP |
673 | } |
674 | ||
45f06b34 LP |
675 | static int service_setup_bus_name(Service *s) { |
676 | int r; | |
677 | ||
678 | assert(s); | |
679 | ||
680 | if (!s->bus_name) | |
681 | return 0; | |
682 | ||
35d8c19a | 683 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, true, UNIT_DEPENDENCY_FILE); |
222953e8 DR |
684 | if (r < 0) |
685 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); | |
45f06b34 | 686 | |
a132bef0 | 687 | /* We always want to be ordered against dbus.socket if both are in the transaction. */ |
35d8c19a | 688 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_DBUS_SOCKET, true, UNIT_DEPENDENCY_FILE); |
45f06b34 | 689 | if (r < 0) |
92bed462 | 690 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); |
45f06b34 LP |
691 | |
692 | r = unit_watch_bus_name(UNIT(s), s->bus_name); | |
693 | if (r == -EEXIST) | |
694 | return log_unit_error_errno(UNIT(s), r, "Two services allocated for the same bus name %s, refusing operation.", s->bus_name); | |
695 | if (r < 0) | |
696 | return log_unit_error_errno(UNIT(s), r, "Cannot watch bus name %s: %m", s->bus_name); | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
8545f7ce LP |
701 | static int service_add_extras(Service *s) { |
702 | int r; | |
703 | ||
704 | assert(s); | |
705 | ||
706 | if (s->type == _SERVICE_TYPE_INVALID) { | |
707 | /* Figure out a type automatically */ | |
708 | if (s->bus_name) | |
709 | s->type = SERVICE_DBUS; | |
710 | else if (s->exec_command[SERVICE_EXEC_START]) | |
711 | s->type = SERVICE_SIMPLE; | |
712 | else | |
713 | s->type = SERVICE_ONESHOT; | |
714 | } | |
715 | ||
716 | /* Oneshot services have disabled start timeout by default */ | |
717 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
36c16a7c | 718 | s->timeout_start_usec = USEC_INFINITY; |
8545f7ce LP |
719 | |
720 | service_fix_output(s); | |
721 | ||
722 | r = unit_patch_contexts(UNIT(s)); | |
723 | if (r < 0) | |
724 | return r; | |
725 | ||
726 | r = unit_add_exec_dependencies(UNIT(s), &s->exec_context); | |
727 | if (r < 0) | |
728 | return r; | |
729 | ||
d79200e2 | 730 | r = unit_set_default_slice(UNIT(s)); |
8545f7ce LP |
731 | if (r < 0) |
732 | return r; | |
733 | ||
4330dc03 AJ |
734 | /* If the service needs the notify socket, let's enable it automatically. */ |
735 | if (s->notify_access == NOTIFY_NONE && | |
736 | (s->type == SERVICE_NOTIFY || s->watchdog_usec > 0 || s->n_fd_store_max > 0)) | |
8545f7ce LP |
737 | s->notify_access = NOTIFY_MAIN; |
738 | ||
afcfaa69 LP |
739 | /* If no OOM policy was explicitly set, then default to the configure default OOM policy. Except when |
740 | * delegation is on, in that case it we assume the payload knows better what to do and can process | |
5238e957 | 741 | * things in a more focused way. */ |
afcfaa69 LP |
742 | if (s->oom_policy < 0) |
743 | s->oom_policy = s->cgroup_context.delegate ? OOM_CONTINUE : UNIT(s)->manager->default_oom_policy; | |
744 | ||
745 | /* Let the kernel do the killing if that's requested. */ | |
746 | s->cgroup_context.memory_oom_group = s->oom_policy == OOM_KILL; | |
747 | ||
45f06b34 LP |
748 | r = service_add_default_dependencies(s); |
749 | if (r < 0) | |
750 | return r; | |
8545f7ce | 751 | |
45f06b34 LP |
752 | r = service_setup_bus_name(s); |
753 | if (r < 0) | |
754 | return r; | |
8545f7ce LP |
755 | |
756 | return 0; | |
757 | } | |
758 | ||
e537352b | 759 | static int service_load(Unit *u) { |
e537352b | 760 | Service *s = SERVICE(u); |
8bb2d17d | 761 | int r; |
e537352b LP |
762 | |
763 | assert(s); | |
1e2e8133 | 764 | |
5cb5a6ff | 765 | /* Load a .service file */ |
c2756a68 LP |
766 | r = unit_load_fragment(u); |
767 | if (r < 0) | |
5cb5a6ff LP |
768 | return r; |
769 | ||
23a177ef | 770 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 771 | if (u->load_state == UNIT_STUB) |
23a177ef | 772 | return -ENOENT; |
034c6ed7 | 773 | |
23a177ef | 774 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 775 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
776 | |
777 | /* We were able to load something, then let's add in | |
778 | * the dropin directories. */ | |
779 | r = unit_load_dropin(u); | |
780 | if (r < 0) | |
781 | return r; | |
782 | ||
8545f7ce LP |
783 | /* This is a new unit? Then let's add in some |
784 | * extras */ | |
785 | r = service_add_extras(s); | |
598459ce LP |
786 | if (r < 0) |
787 | return r; | |
8e274523 LP |
788 | } |
789 | ||
243b1432 | 790 | return service_verify(s); |
034c6ed7 LP |
791 | } |
792 | ||
87f0e418 | 793 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
4c2f5842 | 794 | char buf_restart[FORMAT_TIMESPAN_MAX], buf_start[FORMAT_TIMESPAN_MAX], buf_stop[FORMAT_TIMESPAN_MAX], |
12213aed | 795 | buf_runtime[FORMAT_TIMESPAN_MAX], buf_watchdog[FORMAT_TIMESPAN_MAX], buf_abort[FORMAT_TIMESPAN_MAX]; |
5cb5a6ff | 796 | ServiceExecCommand c; |
87f0e418 | 797 | Service *s = SERVICE(u); |
47be870b | 798 | const char *prefix2; |
5cb5a6ff LP |
799 | |
800 | assert(s); | |
801 | ||
4c940960 | 802 | prefix = strempty(prefix); |
63c372cb | 803 | prefix2 = strjoina(prefix, "\t"); |
44d8db9e | 804 | |
5cb5a6ff | 805 | fprintf(f, |
81a2b7ce | 806 | "%sService State: %s\n" |
f42806df LP |
807 | "%sResult: %s\n" |
808 | "%sReload Result: %s\n" | |
4c2f5842 | 809 | "%sClean Result: %s\n" |
81a2b7ce | 810 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 811 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 812 | "%sRemainAfterExit: %s\n" |
3185a36b | 813 | "%sGuessMainPID: %s\n" |
c952c6ec | 814 | "%sType: %s\n" |
2cf3143a | 815 | "%sRestart: %s\n" |
308d72dc | 816 | "%sNotifyAccess: %s\n" |
afcfaa69 LP |
817 | "%sNotifyState: %s\n" |
818 | "%sOOMPolicy: %s\n", | |
81a2b7ce | 819 | prefix, service_state_to_string(s->state), |
f42806df LP |
820 | prefix, service_result_to_string(s->result), |
821 | prefix, service_result_to_string(s->reload_result), | |
4c2f5842 | 822 | prefix, service_result_to_string(s->clean_result), |
81a2b7ce | 823 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 824 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 825 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 826 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 827 | prefix, service_type_to_string(s->type), |
2cf3143a | 828 | prefix, service_restart_to_string(s->restart), |
308d72dc | 829 | prefix, notify_access_to_string(s->notify_access), |
afcfaa69 LP |
830 | prefix, notify_state_to_string(s->notify_state), |
831 | prefix, oom_policy_to_string(s->oom_policy)); | |
5cb5a6ff | 832 | |
70123e68 LP |
833 | if (s->control_pid > 0) |
834 | fprintf(f, | |
ccd06097 ZJS |
835 | "%sControl PID: "PID_FMT"\n", |
836 | prefix, s->control_pid); | |
70123e68 LP |
837 | |
838 | if (s->main_pid > 0) | |
839 | fprintf(f, | |
ccd06097 | 840 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
841 | "%sMain PID Known: %s\n" |
842 | "%sMain PID Alien: %s\n", | |
ccd06097 | 843 | prefix, s->main_pid, |
6dfa5494 LP |
844 | prefix, yes_no(s->main_pid_known), |
845 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 846 | |
034c6ed7 LP |
847 | if (s->pid_file) |
848 | fprintf(f, | |
849 | "%sPIDFile: %s\n", | |
850 | prefix, s->pid_file); | |
851 | ||
05e343b7 LP |
852 | if (s->bus_name) |
853 | fprintf(f, | |
854 | "%sBusName: %s\n" | |
855 | "%sBus Name Good: %s\n", | |
856 | prefix, s->bus_name, | |
857 | prefix, yes_no(s->bus_name_good)); | |
858 | ||
9dfb64f8 ZJS |
859 | if (UNIT_ISSET(s->accept_socket)) |
860 | fprintf(f, | |
861 | "%sAccept Socket: %s\n", | |
862 | prefix, UNIT_DEREF(s->accept_socket)->id); | |
863 | ||
c9d41699 YW |
864 | fprintf(f, |
865 | "%sRestartSec: %s\n" | |
866 | "%sTimeoutStartSec: %s\n" | |
dcab85be | 867 | "%sTimeoutStopSec: %s\n", |
c9d41699 YW |
868 | prefix, format_timespan(buf_restart, sizeof(buf_restart), s->restart_usec, USEC_PER_SEC), |
869 | prefix, format_timespan(buf_start, sizeof(buf_start), s->timeout_start_usec, USEC_PER_SEC), | |
dcab85be YW |
870 | prefix, format_timespan(buf_stop, sizeof(buf_stop), s->timeout_stop_usec, USEC_PER_SEC)); |
871 | ||
872 | if (s->timeout_abort_set) | |
873 | fprintf(f, | |
874 | "%sTimeoutAbortSec: %s\n", | |
875 | prefix, format_timespan(buf_abort, sizeof(buf_abort), s->timeout_abort_usec, USEC_PER_SEC)); | |
876 | ||
877 | fprintf(f, | |
878 | "%sRuntimeMaxSec: %s\n" | |
879 | "%sWatchdogSec: %s\n", | |
c9d41699 YW |
880 | prefix, format_timespan(buf_runtime, sizeof(buf_runtime), s->runtime_max_usec, USEC_PER_SEC), |
881 | prefix, format_timespan(buf_watchdog, sizeof(buf_watchdog), s->watchdog_usec, USEC_PER_SEC)); | |
882 | ||
4819ff03 | 883 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
884 | exec_context_dump(&s->exec_context, f, prefix); |
885 | ||
e537352b | 886 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 887 | |
44d8db9e LP |
888 | if (!s->exec_command[c]) |
889 | continue; | |
890 | ||
40d50879 | 891 | fprintf(f, "%s-> %s:\n", |
94f04347 | 892 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
893 | |
894 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 895 | } |
44d8db9e | 896 | |
8c47c732 LP |
897 | if (s->status_text) |
898 | fprintf(f, "%sStatus Text: %s\n", | |
899 | prefix, s->status_text); | |
a354329f | 900 | |
ece174c5 | 901 | if (s->n_fd_store_max > 0) |
a354329f LP |
902 | fprintf(f, |
903 | "%sFile Descriptor Store Max: %u\n" | |
da6053d0 | 904 | "%sFile Descriptor Store Current: %zu\n", |
a354329f LP |
905 | prefix, s->n_fd_store_max, |
906 | prefix, s->n_fd_store); | |
18f573aa | 907 | |
bc0623df | 908 | cgroup_context_dump(UNIT(s), f, prefix); |
5cb5a6ff LP |
909 | } |
910 | ||
db256aab LP |
911 | static int service_is_suitable_main_pid(Service *s, pid_t pid, int prio) { |
912 | Unit *owner; | |
913 | ||
914 | assert(s); | |
915 | assert(pid_is_valid(pid)); | |
916 | ||
917 | /* Checks whether the specified PID is suitable as main PID for this service. returns negative if not, 0 if the | |
918 | * PID is questionnable but should be accepted if the source of configuration is trusted. > 0 if the PID is | |
919 | * good */ | |
920 | ||
921 | if (pid == getpid_cached() || pid == 1) { | |
922 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" is the manager, refusing.", pid); | |
923 | return -EPERM; | |
924 | } | |
925 | ||
926 | if (pid == s->control_pid) { | |
927 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" is the control process, refusing.", pid); | |
928 | return -EPERM; | |
929 | } | |
930 | ||
931 | if (!pid_is_alive(pid)) { | |
932 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" does not exist or is a zombie.", pid); | |
933 | return -ESRCH; | |
934 | } | |
935 | ||
936 | owner = manager_get_unit_by_pid(UNIT(s)->manager, pid); | |
937 | if (owner == UNIT(s)) { | |
938 | log_unit_debug(UNIT(s), "New main PID "PID_FMT" belongs to service, we are happy.", pid); | |
939 | return 1; /* Yay, it's definitely a good PID */ | |
940 | } | |
941 | ||
942 | return 0; /* Hmm it's a suspicious PID, let's accept it if configuration source is trusted */ | |
943 | } | |
944 | ||
c5419d42 | 945 | static int service_load_pid_file(Service *s, bool may_warn) { |
db256aab | 946 | char procfs[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
73969ab6 | 947 | bool questionable_pid_file = false; |
7fd1b19b | 948 | _cleanup_free_ char *k = NULL; |
db256aab LP |
949 | _cleanup_close_ int fd = -1; |
950 | int r, prio; | |
5925dd3c | 951 | pid_t pid; |
034c6ed7 LP |
952 | |
953 | assert(s); | |
954 | ||
034c6ed7 | 955 | if (!s->pid_file) |
13230d5d | 956 | return -ENOENT; |
034c6ed7 | 957 | |
db256aab LP |
958 | prio = may_warn ? LOG_INFO : LOG_DEBUG; |
959 | ||
960 | fd = chase_symlinks(s->pid_file, NULL, CHASE_OPEN|CHASE_SAFE, NULL); | |
36c97dec FB |
961 | if (fd == -ENOLINK) { |
962 | log_unit_full(UNIT(s), LOG_DEBUG, fd, "Potentially unsafe symlink chain, will now retry with relaxed checks: %s", s->pid_file); | |
73969ab6 LP |
963 | |
964 | questionable_pid_file = true; | |
965 | ||
966 | fd = chase_symlinks(s->pid_file, NULL, CHASE_OPEN, NULL); | |
967 | } | |
db256aab LP |
968 | if (fd < 0) |
969 | return log_unit_full(UNIT(s), prio, fd, "Can't open PID file %s (yet?) after %s: %m", s->pid_file, service_state_to_string(s->state)); | |
970 | ||
971 | /* Let's read the PID file now that we chased it down. But we need to convert the O_PATH fd chase_symlinks() returned us into a proper fd first. */ | |
972 | xsprintf(procfs, "/proc/self/fd/%i", fd); | |
973 | r = read_one_line_file(procfs, &k); | |
974 | if (r < 0) | |
975 | return log_unit_error_errno(UNIT(s), r, "Can't convert PID files %s O_PATH file descriptor to proper file descriptor: %m", s->pid_file); | |
034c6ed7 | 976 | |
5925dd3c | 977 | r = parse_pid(k, &pid); |
db256aab LP |
978 | if (r < 0) |
979 | return log_unit_full(UNIT(s), prio, r, "Failed to parse PID from file %s: %m", s->pid_file); | |
980 | ||
981 | if (s->main_pid_known && pid == s->main_pid) | |
982 | return 0; | |
983 | ||
984 | r = service_is_suitable_main_pid(s, pid, prio); | |
985 | if (r < 0) | |
5925dd3c | 986 | return r; |
db256aab LP |
987 | if (r == 0) { |
988 | struct stat st; | |
406eaf93 | 989 | |
73969ab6 LP |
990 | if (questionable_pid_file) { |
991 | log_unit_error(UNIT(s), "Refusing to accept PID outside of service control group, acquired through unsafe symlink chain: %s", s->pid_file); | |
992 | return -EPERM; | |
993 | } | |
994 | ||
db256aab LP |
995 | /* Hmm, it's not clear if the new main PID is safe. Let's allow this if the PID file is owned by root */ |
996 | ||
997 | if (fstat(fd, &st) < 0) | |
998 | return log_unit_error_errno(UNIT(s), errno, "Failed to fstat() PID file O_PATH fd: %m"); | |
999 | ||
1000 | if (st.st_uid != 0) { | |
1001 | log_unit_error(UNIT(s), "New main PID "PID_FMT" does not belong to service, and PID file is not owned by root. Refusing.", pid); | |
1002 | return -EPERM; | |
1003 | } | |
1004 | ||
1005 | 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 |
1006 | } |
1007 | ||
db01f8b3 | 1008 | if (s->main_pid_known) { |
f2341e0a | 1009 | log_unit_debug(UNIT(s), "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
8bb2d17d | 1010 | |
db01f8b3 MS |
1011 | service_unwatch_main_pid(s); |
1012 | s->main_pid_known = false; | |
3a111838 | 1013 | } else |
f2341e0a | 1014 | log_unit_debug(UNIT(s), "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 1015 | |
117dcc57 ZJS |
1016 | r = service_set_main_pid(s, pid); |
1017 | if (r < 0) | |
16f6025e LP |
1018 | return r; |
1019 | ||
f75f613d | 1020 | r = unit_watch_pid(UNIT(s), pid, false); |
e8b509d3 LP |
1021 | if (r < 0) /* FIXME: we need to do something here */ |
1022 | return log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", pid); | |
034c6ed7 | 1023 | |
db256aab | 1024 | return 1; |
034c6ed7 LP |
1025 | } |
1026 | ||
783e05d6 | 1027 | static void service_search_main_pid(Service *s) { |
efdb0237 | 1028 | pid_t pid = 0; |
4fbf50b3 LP |
1029 | int r; |
1030 | ||
1031 | assert(s); | |
1032 | ||
3185a36b LP |
1033 | /* If we know it anyway, don't ever fallback to unreliable |
1034 | * heuristics */ | |
4fbf50b3 | 1035 | if (s->main_pid_known) |
783e05d6 | 1036 | return; |
4fbf50b3 | 1037 | |
3185a36b | 1038 | if (!s->guess_main_pid) |
783e05d6 | 1039 | return; |
3185a36b | 1040 | |
4fbf50b3 LP |
1041 | assert(s->main_pid <= 0); |
1042 | ||
783e05d6 ZJS |
1043 | if (unit_search_main_pid(UNIT(s), &pid) < 0) |
1044 | return; | |
4fbf50b3 | 1045 | |
f2341e0a | 1046 | log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid); |
783e05d6 ZJS |
1047 | if (service_set_main_pid(s, pid) < 0) |
1048 | return; | |
4fbf50b3 | 1049 | |
f75f613d | 1050 | r = unit_watch_pid(UNIT(s), pid, false); |
783e05d6 | 1051 | if (r < 0) |
4fbf50b3 | 1052 | /* FIXME: we need to do something here */ |
f2341e0a | 1053 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", pid); |
4fbf50b3 LP |
1054 | } |
1055 | ||
034c6ed7 LP |
1056 | static void service_set_state(Service *s, ServiceState state) { |
1057 | ServiceState old_state; | |
e056b01d | 1058 | const UnitActiveState *table; |
842129f5 | 1059 | |
5cb5a6ff LP |
1060 | assert(s); |
1061 | ||
6fcbec6f LP |
1062 | if (s->state != state) |
1063 | bus_unit_send_pending_change_signal(UNIT(s), false); | |
1064 | ||
e056b01d LP |
1065 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
1066 | ||
034c6ed7 | 1067 | old_state = s->state; |
5cb5a6ff | 1068 | s->state = state; |
034c6ed7 | 1069 | |
3a111838 MS |
1070 | service_unwatch_pid_file(s); |
1071 | ||
842129f5 | 1072 | if (!IN_SET(state, |
31cd5f63 | 1073 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
36c16a7c | 1074 | SERVICE_RUNNING, |
842129f5 | 1075 | SERVICE_RELOAD, |
c87700a1 | 1076 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 | 1077 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
4c2f5842 LP |
1078 | SERVICE_AUTO_RESTART, |
1079 | SERVICE_CLEANING)) | |
718db961 | 1080 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 1081 | |
842129f5 LP |
1082 | if (!IN_SET(state, |
1083 | SERVICE_START, SERVICE_START_POST, | |
1084 | SERVICE_RUNNING, SERVICE_RELOAD, | |
c87700a1 | 1085 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf108e55 | 1086 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 1087 | service_unwatch_main_pid(s); |
867b3b7d LP |
1088 | s->main_command = NULL; |
1089 | } | |
034c6ed7 | 1090 | |
842129f5 | 1091 | if (!IN_SET(state, |
31cd5f63 | 1092 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
842129f5 | 1093 | SERVICE_RELOAD, |
c87700a1 | 1094 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 LP |
1095 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
1096 | SERVICE_CLEANING)) { | |
5e94833f | 1097 | service_unwatch_control_pid(s); |
034c6ed7 | 1098 | s->control_command = NULL; |
a16e1123 | 1099 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 1100 | } |
034c6ed7 | 1101 | |
50be4f4a | 1102 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) { |
a911bb9a | 1103 | unit_unwatch_all_pids(UNIT(s)); |
50be4f4a LP |
1104 | unit_dequeue_rewatch_pids(UNIT(s)); |
1105 | } | |
a911bb9a | 1106 | |
842129f5 | 1107 | if (!IN_SET(state, |
31cd5f63 | 1108 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
842129f5 | 1109 | SERVICE_RUNNING, SERVICE_RELOAD, |
c87700a1 | 1110 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
57614eb1 | 1111 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && |
5cc3985e | 1112 | !(state == SERVICE_DEAD && UNIT(s)->job)) |
4f2d528d LP |
1113 | service_close_socket_fd(s); |
1114 | ||
5686391b LP |
1115 | if (state != SERVICE_START) |
1116 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
1117 | ||
7596e9e1 | 1118 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
1119 | service_stop_watchdog(s); |
1120 | ||
f6023656 LP |
1121 | /* For the inactive states unit_notify() will trim the cgroup, |
1122 | * but for exit we have to do that ourselves... */ | |
2c289ea8 | 1123 | if (state == SERVICE_EXITED && !MANAGER_IS_RELOADING(UNIT(s)->manager)) |
efdb0237 | 1124 | unit_prune_cgroup(UNIT(s)); |
f6023656 | 1125 | |
e537352b | 1126 | if (old_state != state) |
f2341e0a | 1127 | log_unit_debug(UNIT(s), "Changed %s -> %s", service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 1128 | |
2ad2e41a LP |
1129 | unit_notify(UNIT(s), table[old_state], table[state], |
1130 | (s->reload_result == SERVICE_SUCCESS ? 0 : UNIT_NOTIFY_RELOAD_FAILURE) | | |
31cd5f63 AZ |
1131 | (s->will_auto_restart ? UNIT_NOTIFY_WILL_AUTO_RESTART : 0) | |
1132 | (s->result == SERVICE_SKIP_CONDITION ? UNIT_NOTIFY_SKIP_CONDITION : 0)); | |
034c6ed7 LP |
1133 | } |
1134 | ||
36c16a7c LP |
1135 | static usec_t service_coldplug_timeout(Service *s) { |
1136 | assert(s); | |
1137 | ||
1138 | switch (s->deserialized_state) { | |
1139 | ||
31cd5f63 | 1140 | case SERVICE_CONDITION: |
36c16a7c LP |
1141 | case SERVICE_START_PRE: |
1142 | case SERVICE_START: | |
1143 | case SERVICE_START_POST: | |
1144 | case SERVICE_RELOAD: | |
1145 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_start_usec); | |
1146 | ||
1147 | case SERVICE_RUNNING: | |
1148 | return usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec); | |
1149 | ||
1150 | case SERVICE_STOP: | |
36c16a7c LP |
1151 | case SERVICE_STOP_SIGTERM: |
1152 | case SERVICE_STOP_SIGKILL: | |
1153 | case SERVICE_STOP_POST: | |
1154 | case SERVICE_FINAL_SIGTERM: | |
1155 | case SERVICE_FINAL_SIGKILL: | |
1156 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_stop_usec); | |
1157 | ||
dc653bf4 JK |
1158 | case SERVICE_STOP_WATCHDOG: |
1159 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, service_timeout_abort_usec(s)); | |
1160 | ||
36c16a7c LP |
1161 | case SERVICE_AUTO_RESTART: |
1162 | return usec_add(UNIT(s)->inactive_enter_timestamp.monotonic, s->restart_usec); | |
1163 | ||
4c2f5842 | 1164 | case SERVICE_CLEANING: |
12213aed | 1165 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->exec_context.timeout_clean_usec); |
4c2f5842 | 1166 | |
36c16a7c LP |
1167 | default: |
1168 | return USEC_INFINITY; | |
1169 | } | |
1170 | } | |
1171 | ||
be847e82 | 1172 | static int service_coldplug(Unit *u) { |
a16e1123 LP |
1173 | Service *s = SERVICE(u); |
1174 | int r; | |
1175 | ||
1176 | assert(s); | |
1177 | assert(s->state == SERVICE_DEAD); | |
1178 | ||
930d2838 LP |
1179 | if (s->deserialized_state == s->state) |
1180 | return 0; | |
6c12b52e | 1181 | |
36c16a7c LP |
1182 | r = service_arm_timer(s, service_coldplug_timeout(s)); |
1183 | if (r < 0) | |
1184 | return r; | |
a911bb9a | 1185 | |
930d2838 LP |
1186 | if (s->main_pid > 0 && |
1187 | pid_is_unwaited(s->main_pid) && | |
9acac212 | 1188 | (IN_SET(s->deserialized_state, |
930d2838 LP |
1189 | SERVICE_START, SERVICE_START_POST, |
1190 | SERVICE_RUNNING, SERVICE_RELOAD, | |
c87700a1 | 1191 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
930d2838 | 1192 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { |
f75f613d | 1193 | r = unit_watch_pid(UNIT(s), s->main_pid, false); |
930d2838 LP |
1194 | if (r < 0) |
1195 | return r; | |
1196 | } | |
bb242b7b | 1197 | |
930d2838 LP |
1198 | if (s->control_pid > 0 && |
1199 | pid_is_unwaited(s->control_pid) && | |
1200 | IN_SET(s->deserialized_state, | |
31cd5f63 | 1201 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
930d2838 | 1202 | SERVICE_RELOAD, |
c87700a1 | 1203 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 LP |
1204 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
1205 | SERVICE_CLEANING)) { | |
f75f613d | 1206 | r = unit_watch_pid(UNIT(s), s->control_pid, false); |
930d2838 LP |
1207 | if (r < 0) |
1208 | return r; | |
a16e1123 | 1209 | } |
92c1622e | 1210 | |
4c2f5842 | 1211 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART, SERVICE_CLEANING)) { |
50be4f4a | 1212 | (void) unit_enqueue_rewatch_pids(u); |
29206d46 | 1213 | (void) unit_setup_dynamic_creds(u); |
e8a565cb YW |
1214 | (void) unit_setup_exec_runtime(u); |
1215 | } | |
29206d46 | 1216 | |
50be4f4a LP |
1217 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
1218 | service_start_watchdog(s); | |
1219 | ||
3ebcd323 ZJS |
1220 | if (UNIT_ISSET(s->accept_socket)) { |
1221 | Socket* socket = SOCKET(UNIT_DEREF(s->accept_socket)); | |
1222 | ||
1223 | if (socket->max_connections_per_source > 0) { | |
1224 | SocketPeer *peer; | |
1225 | ||
1226 | /* Make a best-effort attempt at bumping the connection count */ | |
1227 | if (socket_acquire_peer(socket, s->socket_fd, &peer) > 0) { | |
1228 | socket_peer_unref(s->peer); | |
1229 | s->peer = peer; | |
1230 | } | |
1231 | } | |
1232 | } | |
1233 | ||
930d2838 | 1234 | service_set_state(s, s->deserialized_state); |
a16e1123 LP |
1235 | return 0; |
1236 | } | |
1237 | ||
25b583d7 LP |
1238 | static int service_collect_fds( |
1239 | Service *s, | |
1240 | int **fds, | |
1241 | char ***fd_names, | |
1242 | size_t *n_socket_fds, | |
1243 | size_t *n_storage_fds) { | |
4c47affc | 1244 | |
8dd4c05b | 1245 | _cleanup_strv_free_ char **rfd_names = NULL; |
a354329f | 1246 | _cleanup_free_ int *rfds = NULL; |
25b583d7 | 1247 | size_t rn_socket_fds = 0, rn_storage_fds = 0; |
4c47affc | 1248 | int r; |
44d8db9e LP |
1249 | |
1250 | assert(s); | |
1251 | assert(fds); | |
8dd4c05b | 1252 | assert(fd_names); |
9b141911 | 1253 | assert(n_socket_fds); |
25b583d7 | 1254 | assert(n_storage_fds); |
44d8db9e | 1255 | |
8dd4c05b | 1256 | if (s->socket_fd >= 0) { |
6cf6bbc2 | 1257 | |
8dd4c05b | 1258 | /* Pass the per-connection socket */ |
57020a3a | 1259 | |
8dd4c05b LP |
1260 | rfds = new(int, 1); |
1261 | if (!rfds) | |
1262 | return -ENOMEM; | |
1263 | rfds[0] = s->socket_fd; | |
57020a3a | 1264 | |
bea1a013 | 1265 | rfd_names = strv_new("connection"); |
8dd4c05b LP |
1266 | if (!rfd_names) |
1267 | return -ENOMEM; | |
44d8db9e | 1268 | |
4c47affc | 1269 | rn_socket_fds = 1; |
8dd4c05b LP |
1270 | } else { |
1271 | Iterator i; | |
eef85c4a | 1272 | void *v; |
8dd4c05b | 1273 | Unit *u; |
44d8db9e | 1274 | |
8dd4c05b | 1275 | /* Pass all our configured sockets for singleton services */ |
44d8db9e | 1276 | |
eef85c4a | 1277 | HASHMAP_FOREACH_KEY(v, u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
8dd4c05b LP |
1278 | _cleanup_free_ int *cfds = NULL; |
1279 | Socket *sock; | |
1280 | int cn_fds; | |
44d8db9e | 1281 | |
8dd4c05b LP |
1282 | if (u->type != UNIT_SOCKET) |
1283 | continue; | |
44d8db9e | 1284 | |
8dd4c05b | 1285 | sock = SOCKET(u); |
a354329f | 1286 | |
8dd4c05b LP |
1287 | cn_fds = socket_collect_fds(sock, &cfds); |
1288 | if (cn_fds < 0) | |
1289 | return cn_fds; | |
44d8db9e | 1290 | |
8dd4c05b LP |
1291 | if (cn_fds <= 0) |
1292 | continue; | |
79c7626d | 1293 | |
8dd4c05b | 1294 | if (!rfds) { |
1cc6c93a | 1295 | rfds = TAKE_PTR(cfds); |
4c47affc | 1296 | rn_socket_fds = cn_fds; |
8dd4c05b LP |
1297 | } else { |
1298 | int *t; | |
1299 | ||
62d74c78 | 1300 | t = reallocarray(rfds, rn_socket_fds + cn_fds, sizeof(int)); |
8dd4c05b LP |
1301 | if (!t) |
1302 | return -ENOMEM; | |
1303 | ||
4c47affc | 1304 | memcpy(t + rn_socket_fds, cfds, cn_fds * sizeof(int)); |
8dd4c05b LP |
1305 | |
1306 | rfds = t; | |
4c47affc | 1307 | rn_socket_fds += cn_fds; |
8dd4c05b LP |
1308 | } |
1309 | ||
1310 | r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds); | |
1311 | if (r < 0) | |
1312 | return r; | |
44d8db9e LP |
1313 | } |
1314 | } | |
1315 | ||
a354329f LP |
1316 | if (s->n_fd_store > 0) { |
1317 | ServiceFDStore *fs; | |
25b583d7 | 1318 | size_t n_fds; |
8dd4c05b | 1319 | char **nl; |
a354329f LP |
1320 | int *t; |
1321 | ||
62d74c78 | 1322 | t = reallocarray(rfds, rn_socket_fds + s->n_fd_store, sizeof(int)); |
a354329f LP |
1323 | if (!t) |
1324 | return -ENOMEM; | |
1325 | ||
1326 | rfds = t; | |
8dd4c05b | 1327 | |
62d74c78 | 1328 | nl = reallocarray(rfd_names, rn_socket_fds + s->n_fd_store + 1, sizeof(char *)); |
8dd4c05b LP |
1329 | if (!nl) |
1330 | return -ENOMEM; | |
1331 | ||
1332 | rfd_names = nl; | |
4c47affc | 1333 | n_fds = rn_socket_fds; |
8dd4c05b LP |
1334 | |
1335 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
4c47affc FB |
1336 | rfds[n_fds] = fs->fd; |
1337 | rfd_names[n_fds] = strdup(strempty(fs->fdname)); | |
1338 | if (!rfd_names[n_fds]) | |
8dd4c05b LP |
1339 | return -ENOMEM; |
1340 | ||
4c47affc FB |
1341 | rn_storage_fds++; |
1342 | n_fds++; | |
8dd4c05b LP |
1343 | } |
1344 | ||
4c47affc | 1345 | rfd_names[n_fds] = NULL; |
a354329f LP |
1346 | } |
1347 | ||
1cc6c93a YW |
1348 | *fds = TAKE_PTR(rfds); |
1349 | *fd_names = TAKE_PTR(rfd_names); | |
9b141911 | 1350 | *n_socket_fds = rn_socket_fds; |
4c47affc | 1351 | *n_storage_fds = rn_storage_fds; |
3e33402a | 1352 | |
4c47affc | 1353 | return 0; |
44d8db9e LP |
1354 | } |
1355 | ||
5686391b LP |
1356 | static int service_allocate_exec_fd_event_source( |
1357 | Service *s, | |
1358 | int fd, | |
1359 | sd_event_source **ret_event_source) { | |
1360 | ||
1361 | _cleanup_(sd_event_source_unrefp) sd_event_source *source = NULL; | |
1362 | int r; | |
1363 | ||
1364 | assert(s); | |
1365 | assert(fd >= 0); | |
1366 | assert(ret_event_source); | |
1367 | ||
1368 | r = sd_event_add_io(UNIT(s)->manager->event, &source, fd, 0, service_dispatch_exec_io, s); | |
1369 | if (r < 0) | |
1370 | return log_unit_error_errno(UNIT(s), r, "Failed to allocate exec_fd event source: %m"); | |
1371 | ||
1372 | /* This is a bit lower priority than SIGCHLD, as that carries a lot more interesting failure information */ | |
1373 | ||
1374 | r = sd_event_source_set_priority(source, SD_EVENT_PRIORITY_NORMAL-3); | |
1375 | if (r < 0) | |
1376 | return log_unit_error_errno(UNIT(s), r, "Failed to adjust priority of exec_fd event source: %m"); | |
1377 | ||
1378 | (void) sd_event_source_set_description(source, "service event_fd"); | |
1379 | ||
1380 | r = sd_event_source_set_io_fd_own(source, true); | |
1381 | if (r < 0) | |
1382 | return log_unit_error_errno(UNIT(s), r, "Failed to pass ownership of fd to event source: %m"); | |
1383 | ||
1384 | *ret_event_source = TAKE_PTR(source); | |
1385 | return 0; | |
1386 | } | |
1387 | ||
1388 | static int service_allocate_exec_fd( | |
1389 | Service *s, | |
1390 | sd_event_source **ret_event_source, | |
1391 | int* ret_exec_fd) { | |
1392 | ||
1393 | _cleanup_close_pair_ int p[2] = { -1, -1 }; | |
1394 | int r; | |
1395 | ||
1396 | assert(s); | |
1397 | assert(ret_event_source); | |
1398 | assert(ret_exec_fd); | |
1399 | ||
1400 | if (pipe2(p, O_CLOEXEC|O_NONBLOCK) < 0) | |
1401 | return log_unit_error_errno(UNIT(s), errno, "Failed to allocate exec_fd pipe: %m"); | |
1402 | ||
1403 | r = service_allocate_exec_fd_event_source(s, p[0], ret_event_source); | |
1404 | if (r < 0) | |
1405 | return r; | |
1406 | ||
1407 | p[0] = -1; | |
1408 | *ret_exec_fd = TAKE_FD(p[1]); | |
1409 | ||
1410 | return 0; | |
1411 | } | |
1412 | ||
6375bd20 JW |
1413 | static bool service_exec_needs_notify_socket(Service *s, ExecFlags flags) { |
1414 | assert(s); | |
1415 | ||
1416 | /* Notifications are accepted depending on the process and | |
1417 | * the access setting of the service: | |
1418 | * process: \ access: NONE MAIN EXEC ALL | |
1419 | * main no yes yes yes | |
1420 | * control no no yes yes | |
1421 | * other (forked) no no no yes */ | |
1422 | ||
1423 | if (flags & EXEC_IS_CONTROL) | |
1424 | /* A control process */ | |
1425 | return IN_SET(s->notify_access, NOTIFY_EXEC, NOTIFY_ALL); | |
1426 | ||
1427 | /* We only spawn main processes and control processes, so any | |
1428 | * process that is not a control process is a main process */ | |
1429 | return s->notify_access != NOTIFY_NONE; | |
1430 | } | |
1431 | ||
81a2b7ce LP |
1432 | static int service_spawn( |
1433 | Service *s, | |
1434 | ExecCommand *c, | |
21b2ce39 | 1435 | usec_t timeout, |
c39f1ce2 | 1436 | ExecFlags flags, |
81a2b7ce LP |
1437 | pid_t *_pid) { |
1438 | ||
b9c04eaf | 1439 | _cleanup_(exec_params_clear) ExecParameters exec_params = { |
c39f1ce2 LP |
1440 | .flags = flags, |
1441 | .stdin_fd = -1, | |
1442 | .stdout_fd = -1, | |
1443 | .stderr_fd = -1, | |
25b583d7 | 1444 | .exec_fd = -1, |
9fa95f85 | 1445 | }; |
3c7416b6 | 1446 | _cleanup_strv_free_ char **final_env = NULL, **our_env = NULL, **fd_names = NULL; |
5686391b | 1447 | _cleanup_(sd_event_source_unrefp) sd_event_source *exec_fd_source = NULL; |
25b583d7 | 1448 | size_t n_socket_fds = 0, n_storage_fds = 0, n_env = 0; |
5686391b | 1449 | _cleanup_close_ int exec_fd = -1; |
3c7416b6 LP |
1450 | _cleanup_free_ int *fds = NULL; |
1451 | pid_t pid; | |
8dd4c05b LP |
1452 | int r; |
1453 | ||
034c6ed7 LP |
1454 | assert(s); |
1455 | assert(c); | |
1456 | assert(_pid); | |
1457 | ||
78f93209 | 1458 | r = unit_prepare_exec(UNIT(s)); /* This realizes the cgroup, among other things */ |
3c7416b6 LP |
1459 | if (r < 0) |
1460 | return r; | |
1461 | ||
9c1a61ad LP |
1462 | if (flags & EXEC_IS_CONTROL) { |
1463 | /* If this is a control process, mask the permissions/chroot application if this is requested. */ | |
1464 | if (s->permissions_start_only) | |
1703fa41 | 1465 | exec_params.flags &= ~EXEC_APPLY_SANDBOXING; |
9c1a61ad LP |
1466 | if (s->root_directory_start_only) |
1467 | exec_params.flags &= ~EXEC_APPLY_CHROOT; | |
1468 | } | |
1469 | ||
c39f1ce2 | 1470 | if ((flags & EXEC_PASS_FDS) || |
6cf6bbc2 LP |
1471 | s->exec_context.std_input == EXEC_INPUT_SOCKET || |
1472 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1473 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1474 | ||
25b583d7 | 1475 | r = service_collect_fds(s, &fds, &fd_names, &n_socket_fds, &n_storage_fds); |
8dd4c05b | 1476 | if (r < 0) |
36c16a7c | 1477 | return r; |
6cf6bbc2 | 1478 | |
25b583d7 | 1479 | log_unit_debug(UNIT(s), "Passing %zu fds to service", n_socket_fds + n_storage_fds); |
4f2d528d | 1480 | } |
44d8db9e | 1481 | |
5686391b LP |
1482 | if (!FLAGS_SET(flags, EXEC_IS_CONTROL) && s->type == SERVICE_EXEC) { |
1483 | assert(!s->exec_fd_event_source); | |
1484 | ||
1485 | r = service_allocate_exec_fd(s, &exec_fd_source, &exec_fd); | |
1486 | if (r < 0) | |
1487 | return r; | |
1488 | } | |
1489 | ||
36c16a7c LP |
1490 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), timeout)); |
1491 | if (r < 0) | |
1492 | return r; | |
034c6ed7 | 1493 | |
dcf3c3c3 | 1494 | our_env = new0(char*, 10); |
36c16a7c LP |
1495 | if (!our_env) |
1496 | return -ENOMEM; | |
c952c6ec | 1497 | |
6375bd20 | 1498 | if (service_exec_needs_notify_socket(s, flags)) |
36c16a7c LP |
1499 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) |
1500 | return -ENOMEM; | |
c952c6ec | 1501 | |
2105e76a | 1502 | if (s->main_pid > 0) |
36c16a7c LP |
1503 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) |
1504 | return -ENOMEM; | |
2105e76a | 1505 | |
c39f1ce2 | 1506 | if (MANAGER_IS_USER(UNIT(s)->manager)) |
df0ff127 | 1507 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid_cached()) < 0) |
36c16a7c | 1508 | return -ENOMEM; |
97ae63e2 | 1509 | |
dcf3c3c3 LP |
1510 | if (s->pid_file) |
1511 | if (asprintf(our_env + n_env++, "PIDFILE=%s", s->pid_file) < 0) | |
1512 | return -ENOMEM; | |
1513 | ||
8dd4c05b | 1514 | if (s->socket_fd >= 0) { |
3b1c5241 SL |
1515 | union sockaddr_union sa; |
1516 | socklen_t salen = sizeof(sa); | |
1517 | ||
f56e7bfe LP |
1518 | /* If this is a per-connection service instance, let's set $REMOTE_ADDR and $REMOTE_PORT to something |
1519 | * useful. Note that we do this only when we are still connected at this point in time, which we might | |
1520 | * very well not be. Hence we ignore all errors when retrieving peer information (as that might result | |
1521 | * in ENOTCONN), and just use whate we can use. */ | |
f2dbd059 | 1522 | |
f56e7bfe LP |
1523 | if (getpeername(s->socket_fd, &sa.sa, &salen) >= 0 && |
1524 | IN_SET(sa.sa.sa_family, AF_INET, AF_INET6, AF_VSOCK)) { | |
3b1c5241 | 1525 | |
3b1c5241 SL |
1526 | _cleanup_free_ char *addr = NULL; |
1527 | char *t; | |
882ac6e7 | 1528 | unsigned port; |
3b1c5241 SL |
1529 | |
1530 | r = sockaddr_pretty(&sa.sa, salen, true, false, &addr); | |
1531 | if (r < 0) | |
36c16a7c | 1532 | return r; |
3b1c5241 | 1533 | |
b910cc72 | 1534 | t = strjoin("REMOTE_ADDR=", addr); |
36c16a7c LP |
1535 | if (!t) |
1536 | return -ENOMEM; | |
3b1c5241 SL |
1537 | our_env[n_env++] = t; |
1538 | ||
882ac6e7 SH |
1539 | r = sockaddr_port(&sa.sa, &port); |
1540 | if (r < 0) | |
1541 | return r; | |
3b1c5241 | 1542 | |
36c16a7c LP |
1543 | if (asprintf(&t, "REMOTE_PORT=%u", port) < 0) |
1544 | return -ENOMEM; | |
3b1c5241 SL |
1545 | our_env[n_env++] = t; |
1546 | } | |
1547 | } | |
1548 | ||
136dc4c4 LP |
1549 | if (flags & EXEC_SETENV_RESULT) { |
1550 | if (asprintf(our_env + n_env++, "SERVICE_RESULT=%s", service_result_to_string(s->result)) < 0) | |
1551 | return -ENOMEM; | |
1552 | ||
1553 | if (s->main_exec_status.pid > 0 && | |
1554 | dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { | |
1555 | if (asprintf(our_env + n_env++, "EXIT_CODE=%s", sigchld_code_to_string(s->main_exec_status.code)) < 0) | |
1556 | return -ENOMEM; | |
1557 | ||
1558 | if (s->main_exec_status.code == CLD_EXITED) | |
1559 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%i", s->main_exec_status.status); | |
1560 | else | |
1561 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%s", signal_to_string(s->main_exec_status.status)); | |
1562 | if (r < 0) | |
1563 | return -ENOMEM; | |
1564 | } | |
1565 | } | |
1566 | ||
1ad6e8b3 LP |
1567 | r = unit_set_exec_params(UNIT(s), &exec_params); |
1568 | if (r < 0) | |
1569 | return r; | |
3536f49e YW |
1570 | |
1571 | final_env = strv_env_merge(2, exec_params.environment, our_env, NULL); | |
36c16a7c LP |
1572 | if (!final_env) |
1573 | return -ENOMEM; | |
c952c6ec | 1574 | |
ac647978 LP |
1575 | /* System D-Bus needs nss-systemd disabled, so that we don't deadlock */ |
1576 | SET_FLAG(exec_params.flags, EXEC_NSS_BYPASS_BUS, | |
1577 | MANAGER_IS_SYSTEM(UNIT(s)->manager) && unit_has_name(UNIT(s), SPECIAL_DBUS_SERVICE)); | |
4ad49000 | 1578 | |
b9c04eaf | 1579 | strv_free_and_replace(exec_params.environment, final_env); |
9fa95f85 | 1580 | exec_params.fds = fds; |
8dd4c05b | 1581 | exec_params.fd_names = fd_names; |
9b141911 | 1582 | exec_params.n_socket_fds = n_socket_fds; |
25b583d7 | 1583 | exec_params.n_storage_fds = n_storage_fds; |
34b3f625 | 1584 | exec_params.watchdog_usec = service_get_watchdog_usec(s); |
a34ceba6 | 1585 | exec_params.selinux_context_net = s->socket_fd_selinux_context_net; |
9fa95f85 DM |
1586 | if (s->type == SERVICE_IDLE) |
1587 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
a34ceba6 LP |
1588 | exec_params.stdin_fd = s->stdin_fd; |
1589 | exec_params.stdout_fd = s->stdout_fd; | |
1590 | exec_params.stderr_fd = s->stderr_fd; | |
5686391b | 1591 | exec_params.exec_fd = exec_fd; |
9fa95f85 | 1592 | |
f2341e0a LP |
1593 | r = exec_spawn(UNIT(s), |
1594 | c, | |
9e2f7c11 | 1595 | &s->exec_context, |
9fa95f85 | 1596 | &exec_params, |
613b411c | 1597 | s->exec_runtime, |
29206d46 | 1598 | &s->dynamic_creds, |
9e2f7c11 | 1599 | &pid); |
9e2f7c11 | 1600 | if (r < 0) |
36c16a7c | 1601 | return r; |
034c6ed7 | 1602 | |
5686391b LP |
1603 | s->exec_fd_event_source = TAKE_PTR(exec_fd_source); |
1604 | s->exec_fd_hot = false; | |
1605 | ||
f75f613d FB |
1606 | r = unit_watch_pid(UNIT(s), pid, true); |
1607 | if (r < 0) | |
36c16a7c | 1608 | return r; |
034c6ed7 LP |
1609 | |
1610 | *_pid = pid; | |
1611 | ||
5cb5a6ff | 1612 | return 0; |
034c6ed7 LP |
1613 | } |
1614 | ||
80876c20 LP |
1615 | static int main_pid_good(Service *s) { |
1616 | assert(s); | |
1617 | ||
51894d70 | 1618 | /* Returns 0 if the pid is dead, > 0 if it is good, < 0 if we don't know */ |
80876c20 | 1619 | |
fc08079e | 1620 | /* If we know the pid file, then let's just check if it is |
80876c20 | 1621 | * still valid */ |
6dfa5494 LP |
1622 | if (s->main_pid_known) { |
1623 | ||
1624 | /* If it's an alien child let's check if it is still | |
1625 | * alive ... */ | |
62220cf7 | 1626 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1627 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1628 | |
1629 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1630 | * which we really should wait for to collect exit | |
1631 | * status and code */ | |
80876c20 | 1632 | return s->main_pid > 0; |
6dfa5494 | 1633 | } |
80876c20 LP |
1634 | |
1635 | /* We don't know the pid */ | |
1636 | return -EAGAIN; | |
1637 | } | |
1638 | ||
019be286 | 1639 | static int control_pid_good(Service *s) { |
80876c20 LP |
1640 | assert(s); |
1641 | ||
07697d7e LP |
1642 | /* Returns 0 if the control PID is dead, > 0 if it is good. We never actually return < 0 here, but in order to |
1643 | * make this function as similar as possible to main_pid_good() and cgroup_good(), we pretend that < 0 also | |
1644 | * means: we can't figure it out. */ | |
1645 | ||
80876c20 LP |
1646 | return s->control_pid > 0; |
1647 | } | |
1648 | ||
1649 | static int cgroup_good(Service *s) { | |
1650 | int r; | |
1651 | ||
1652 | assert(s); | |
1653 | ||
07697d7e LP |
1654 | /* Returns 0 if the cgroup is empty or doesn't exist, > 0 if it is exists and is populated, < 0 if we can't |
1655 | * figure it out */ | |
1656 | ||
4ad49000 LP |
1657 | if (!UNIT(s)->cgroup_path) |
1658 | return 0; | |
1659 | ||
6f883237 | 1660 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path); |
117dcc57 | 1661 | if (r < 0) |
80876c20 LP |
1662 | return r; |
1663 | ||
b13ddbbc | 1664 | return r == 0; |
80876c20 LP |
1665 | } |
1666 | ||
a509f0e6 LP |
1667 | static bool service_shall_restart(Service *s) { |
1668 | assert(s); | |
1669 | ||
1670 | /* Don't restart after manual stops */ | |
1671 | if (s->forbid_restart) | |
1672 | return false; | |
1673 | ||
1674 | /* Never restart if this is configured as special exception */ | |
1675 | if (exit_status_set_test(&s->restart_prevent_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1676 | return false; | |
1677 | ||
1678 | /* Restart if the exit code/status are configured as restart triggers */ | |
1679 | if (exit_status_set_test(&s->restart_force_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1680 | return true; | |
1681 | ||
1682 | switch (s->restart) { | |
1683 | ||
1684 | case SERVICE_RESTART_NO: | |
1685 | return false; | |
1686 | ||
1687 | case SERVICE_RESTART_ALWAYS: | |
1688 | return true; | |
1689 | ||
1690 | case SERVICE_RESTART_ON_SUCCESS: | |
1691 | return s->result == SERVICE_SUCCESS; | |
1692 | ||
1693 | case SERVICE_RESTART_ON_FAILURE: | |
1694 | return s->result != SERVICE_SUCCESS; | |
1695 | ||
1696 | case SERVICE_RESTART_ON_ABNORMAL: | |
1697 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE); | |
1698 | ||
1699 | case SERVICE_RESTART_ON_WATCHDOG: | |
1700 | return s->result == SERVICE_FAILURE_WATCHDOG; | |
1701 | ||
1702 | case SERVICE_RESTART_ON_ABORT: | |
1703 | return IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP); | |
1704 | ||
1705 | default: | |
1706 | assert_not_reached("unknown restart setting"); | |
1707 | } | |
1708 | } | |
1709 | ||
deb4e708 MK |
1710 | static bool service_will_restart(Unit *u) { |
1711 | Service *s = SERVICE(u); | |
1712 | ||
53f47dfc YW |
1713 | assert(s); |
1714 | ||
deb4e708 MK |
1715 | if (s->will_auto_restart) |
1716 | return true; | |
53f47dfc YW |
1717 | if (s->state == SERVICE_AUTO_RESTART) |
1718 | return true; | |
2ad2e41a | 1719 | |
52a12341 | 1720 | return unit_will_restart_default(u); |
53f47dfc YW |
1721 | } |
1722 | ||
f42806df | 1723 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
31cd5f63 | 1724 | ServiceState end_state; |
034c6ed7 | 1725 | int r; |
0f52f8e5 | 1726 | |
034c6ed7 LP |
1727 | assert(s); |
1728 | ||
0f52f8e5 LP |
1729 | /* If there's a stop job queued before we enter the DEAD state, we shouldn't act on Restart=, in order to not |
1730 | * undo what has already been enqueued. */ | |
1731 | if (unit_stop_pending(UNIT(s))) | |
1732 | allow_restart = false; | |
1733 | ||
a0fef983 | 1734 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1735 | s->result = f; |
034c6ed7 | 1736 | |
31cd5f63 AZ |
1737 | if (s->result == SERVICE_SUCCESS) { |
1738 | unit_log_success(UNIT(s)); | |
1739 | end_state = SERVICE_DEAD; | |
1740 | } else if (s->result == SERVICE_SKIP_CONDITION) { | |
1741 | unit_log_skip(UNIT(s), service_result_to_string(s->result)); | |
1742 | end_state = SERVICE_DEAD; | |
1743 | } else { | |
1744 | unit_log_failure(UNIT(s), service_result_to_string(s->result)); | |
1745 | end_state = SERVICE_FAILED; | |
1746 | } | |
ed77d407 | 1747 | |
deb4e708 MK |
1748 | if (allow_restart && service_shall_restart(s)) |
1749 | s->will_auto_restart = true; | |
1750 | ||
7eb2a8a1 LP |
1751 | /* Make sure service_release_resources() doesn't destroy our FD store, while we are changing through |
1752 | * SERVICE_FAILED/SERVICE_DEAD before entering into SERVICE_AUTO_RESTART. */ | |
1753 | s->n_keep_fd_store ++; | |
1754 | ||
31cd5f63 | 1755 | service_set_state(s, end_state); |
0c7f15b3 | 1756 | |
deb4e708 MK |
1757 | if (s->will_auto_restart) { |
1758 | s->will_auto_restart = false; | |
034c6ed7 | 1759 | |
36c16a7c | 1760 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
7eb2a8a1 LP |
1761 | if (r < 0) { |
1762 | s->n_keep_fd_store--; | |
034c6ed7 | 1763 | goto fail; |
7eb2a8a1 | 1764 | } |
034c6ed7 LP |
1765 | |
1766 | service_set_state(s, SERVICE_AUTO_RESTART); | |
7a0019d3 LP |
1767 | } else |
1768 | /* If we shan't restart, then flush out the restart counter. But don't do that immediately, so that the | |
1769 | * user can still introspect the counter. Do so on the next start. */ | |
1770 | s->flush_n_restarts = true; | |
034c6ed7 | 1771 | |
5238e957 | 1772 | /* 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 |
1773 | * queue, so that the fd store is possibly gc'ed again */ |
1774 | s->n_keep_fd_store--; | |
1775 | unit_add_to_gc_queue(UNIT(s)); | |
1776 | ||
f2341e0a | 1777 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1778 | s->forbid_restart = false; |
1779 | ||
e66cf1a3 | 1780 | /* We want fresh tmpdirs in case service is started again immediately */ |
e8a565cb | 1781 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, true); |
c17ec25e | 1782 | |
95939aed YW |
1783 | /* Also, remove the runtime directory */ |
1784 | unit_destroy_runtime_directory(UNIT(s), &s->exec_context); | |
e66cf1a3 | 1785 | |
00d9ef85 LP |
1786 | /* Get rid of the IPC bits of the user */ |
1787 | unit_unref_uid_gid(UNIT(s), true); | |
1788 | ||
29206d46 LP |
1789 | /* Release the user, and destroy it if we are the only remaining owner */ |
1790 | dynamic_creds_destroy(&s->dynamic_creds); | |
1791 | ||
9285c9ff LN |
1792 | /* Try to delete the pid file. At this point it will be |
1793 | * out-of-date, and some software might be confused by it, so | |
1794 | * let's remove it. */ | |
1795 | if (s->pid_file) | |
fabab190 | 1796 | (void) unlink(s->pid_file); |
9285c9ff | 1797 | |
6f765baf LP |
1798 | /* Reset TTY ownership if necessary */ |
1799 | exec_context_revert_tty(&s->exec_context); | |
1800 | ||
034c6ed7 LP |
1801 | return; |
1802 | ||
1803 | fail: | |
f2341e0a | 1804 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1805 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1806 | } |
1807 | ||
f42806df | 1808 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1809 | int r; |
1810 | assert(s); | |
1811 | ||
a0fef983 | 1812 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1813 | s->result = f; |
034c6ed7 | 1814 | |
5e94833f | 1815 | service_unwatch_control_pid(s); |
50be4f4a | 1816 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
5e94833f | 1817 | |
117dcc57 ZJS |
1818 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1819 | if (s->control_command) { | |
867b3b7d LP |
1820 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1821 | ||
ecedd90f LP |
1822 | r = service_spawn(s, |
1823 | s->control_command, | |
21b2ce39 | 1824 | s->timeout_stop_usec, |
78f93209 | 1825 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
1826 | &s->control_pid); |
1827 | if (r < 0) | |
034c6ed7 LP |
1828 | goto fail; |
1829 | ||
80876c20 LP |
1830 | service_set_state(s, SERVICE_STOP_POST); |
1831 | } else | |
ac84d1fb | 1832 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1833 | |
1834 | return; | |
1835 | ||
1836 | fail: | |
f2341e0a | 1837 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1838 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1839 | } |
1840 | ||
a232ebcc | 1841 | static int state_to_kill_operation(Service *s, ServiceState state) { |
4940c0b0 LP |
1842 | switch (state) { |
1843 | ||
c87700a1 AZ |
1844 | case SERVICE_STOP_WATCHDOG: |
1845 | return KILL_WATCHDOG; | |
4940c0b0 LP |
1846 | |
1847 | case SERVICE_STOP_SIGTERM: | |
a232ebcc ZJS |
1848 | if (unit_has_job_type(UNIT(s), JOB_RESTART)) |
1849 | return KILL_RESTART; | |
1850 | _fallthrough_; | |
1851 | ||
4940c0b0 LP |
1852 | case SERVICE_FINAL_SIGTERM: |
1853 | return KILL_TERMINATE; | |
1854 | ||
1855 | case SERVICE_STOP_SIGKILL: | |
1856 | case SERVICE_FINAL_SIGKILL: | |
1857 | return KILL_KILL; | |
1858 | ||
1859 | default: | |
1860 | return _KILL_OPERATION_INVALID; | |
1861 | } | |
1862 | } | |
1863 | ||
f42806df | 1864 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1865 | int r; |
034c6ed7 LP |
1866 | |
1867 | assert(s); | |
1868 | ||
a0fef983 | 1869 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1870 | s->result = f; |
034c6ed7 | 1871 | |
50be4f4a LP |
1872 | /* Before sending any signal, make sure we track all members of this cgroup */ |
1873 | (void) unit_watch_all_pids(UNIT(s)); | |
1874 | ||
1875 | /* Also, enqueue a job that we recheck all our PIDs a bit later, given that it's likely some processes have | |
1876 | * died now */ | |
1877 | (void) unit_enqueue_rewatch_pids(UNIT(s)); | |
a911bb9a | 1878 | |
cd2086fe LP |
1879 | r = unit_kill_context( |
1880 | UNIT(s), | |
1881 | &s->kill_context, | |
a232ebcc | 1882 | state_to_kill_operation(s, state), |
cd2086fe LP |
1883 | s->main_pid, |
1884 | s->control_pid, | |
1885 | s->main_pid_alien); | |
1886 | if (r < 0) | |
1887 | goto fail; | |
034c6ed7 | 1888 | |
cd2086fe | 1889 | if (r > 0) { |
dc653bf4 JK |
1890 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), |
1891 | state == SERVICE_STOP_WATCHDOG ? service_timeout_abort_usec(s) : s->timeout_stop_usec)); | |
36c16a7c LP |
1892 | if (r < 0) |
1893 | goto fail; | |
d6ea93e3 | 1894 | |
80876c20 | 1895 | service_set_state(s, state); |
c87700a1 | 1896 | } else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1897 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
c87700a1 | 1898 | else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1899 | service_enter_stop_post(s, SERVICE_SUCCESS); |
1db0db4b | 1900 | else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb | 1901 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 1902 | else |
f42806df | 1903 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1904 | |
1905 | return; | |
1906 | ||
1907 | fail: | |
f2341e0a | 1908 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 1909 | |
c87700a1 | 1910 | if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1911 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1912 | else |
f42806df | 1913 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1914 | } |
1915 | ||
308d72dc LP |
1916 | static void service_enter_stop_by_notify(Service *s) { |
1917 | assert(s); | |
1918 | ||
50be4f4a | 1919 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
308d72dc | 1920 | |
36c16a7c | 1921 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
308d72dc | 1922 | |
6041a7ee MS |
1923 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
1924 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
1925 | } |
1926 | ||
f42806df | 1927 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1928 | int r; |
5925dd3c | 1929 | |
034c6ed7 LP |
1930 | assert(s); |
1931 | ||
a0fef983 | 1932 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1933 | s->result = f; |
034c6ed7 | 1934 | |
5e94833f | 1935 | service_unwatch_control_pid(s); |
50be4f4a | 1936 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
5e94833f | 1937 | |
117dcc57 ZJS |
1938 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1939 | if (s->control_command) { | |
867b3b7d LP |
1940 | s->control_command_id = SERVICE_EXEC_STOP; |
1941 | ||
ecedd90f LP |
1942 | r = service_spawn(s, |
1943 | s->control_command, | |
21b2ce39 | 1944 | s->timeout_stop_usec, |
78f93209 | 1945 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
1946 | &s->control_pid); |
1947 | if (r < 0) | |
034c6ed7 LP |
1948 | goto fail; |
1949 | ||
80876c20 LP |
1950 | service_set_state(s, SERVICE_STOP); |
1951 | } else | |
f42806df | 1952 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1953 | |
1954 | return; | |
1955 | ||
1956 | fail: | |
f2341e0a | 1957 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 1958 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1959 | } |
1960 | ||
957c3cf9 LP |
1961 | static bool service_good(Service *s) { |
1962 | int main_pid_ok; | |
1963 | assert(s); | |
1964 | ||
1965 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
1966 | return false; | |
1967 | ||
1968 | main_pid_ok = main_pid_good(s); | |
1969 | if (main_pid_ok > 0) /* It's alive */ | |
1970 | return true; | |
1971 | if (main_pid_ok == 0) /* It's dead */ | |
1972 | return false; | |
1973 | ||
1974 | /* OK, we don't know anything about the main PID, maybe | |
1975 | * because there is none. Let's check the control group | |
1976 | * instead. */ | |
1977 | ||
1978 | return cgroup_good(s) != 0; | |
1979 | } | |
1980 | ||
f42806df | 1981 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
1982 | assert(s); |
1983 | ||
a0fef983 | 1984 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1985 | s->result = f; |
80876c20 | 1986 | |
089b64d5 LP |
1987 | service_unwatch_control_pid(s); |
1988 | ||
ec5b1452 LP |
1989 | if (s->result != SERVICE_SUCCESS) |
1990 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
1991 | else if (service_good(s)) { | |
308d72dc | 1992 | |
ec5b1452 | 1993 | /* If there are any queued up sd_notify() notifications, process them now */ |
308d72dc LP |
1994 | if (s->notify_state == NOTIFY_RELOADING) |
1995 | service_enter_reload_by_notify(s); | |
1996 | else if (s->notify_state == NOTIFY_STOPPING) | |
1997 | service_enter_stop_by_notify(s); | |
36c16a7c | 1998 | else { |
308d72dc | 1999 | service_set_state(s, SERVICE_RUNNING); |
36c16a7c LP |
2000 | service_arm_timer(s, usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec)); |
2001 | } | |
308d72dc | 2002 | |
ec5b1452 | 2003 | } else if (s->remain_after_exit) |
80876c20 LP |
2004 | service_set_state(s, SERVICE_EXITED); |
2005 | else | |
f42806df | 2006 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
2007 | } |
2008 | ||
034c6ed7 LP |
2009 | static void service_enter_start_post(Service *s) { |
2010 | int r; | |
2011 | assert(s); | |
2012 | ||
5e94833f | 2013 | service_unwatch_control_pid(s); |
842129f5 | 2014 | service_reset_watchdog(s); |
bb242b7b | 2015 | |
117dcc57 ZJS |
2016 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
2017 | if (s->control_command) { | |
867b3b7d LP |
2018 | s->control_command_id = SERVICE_EXEC_START_POST; |
2019 | ||
ecedd90f LP |
2020 | r = service_spawn(s, |
2021 | s->control_command, | |
21b2ce39 | 2022 | s->timeout_start_usec, |
78f93209 | 2023 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
2024 | &s->control_pid); |
2025 | if (r < 0) | |
034c6ed7 LP |
2026 | goto fail; |
2027 | ||
80876c20 LP |
2028 | service_set_state(s, SERVICE_START_POST); |
2029 | } else | |
f42806df | 2030 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2031 | |
2032 | return; | |
2033 | ||
2034 | fail: | |
f2341e0a | 2035 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 2036 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2037 | } |
2038 | ||
e9a4f676 | 2039 | static void service_kill_control_process(Service *s) { |
a6951a50 | 2040 | int r; |
4ad49000 | 2041 | |
a6951a50 LP |
2042 | assert(s); |
2043 | ||
e9a4f676 LP |
2044 | if (s->control_pid <= 0) |
2045 | return; | |
4ad49000 | 2046 | |
e9a4f676 LP |
2047 | r = kill_and_sigcont(s->control_pid, SIGKILL); |
2048 | if (r < 0) { | |
2049 | _cleanup_free_ char *comm = NULL; | |
a6951a50 | 2050 | |
e9a4f676 | 2051 | (void) get_process_comm(s->control_pid, &comm); |
a6951a50 | 2052 | |
e9a4f676 LP |
2053 | log_unit_debug_errno(UNIT(s), r, "Failed to kill control process " PID_FMT " (%s), ignoring: %m", |
2054 | s->control_pid, strna(comm)); | |
a6951a50 | 2055 | } |
4ad49000 LP |
2056 | } |
2057 | ||
c53d2d54 DB |
2058 | static int service_adverse_to_leftover_processes(Service *s) { |
2059 | assert(s); | |
2060 | ||
2061 | /* KillMode=mixed and control group are used to indicate that all process should be killed off. | |
2062 | * SendSIGKILL is used for services that require a clean shutdown. These are typically database | |
2063 | * service where a SigKilled process would result in a lengthy recovery and who's shutdown or | |
2064 | * startup time is quite variable (so Timeout settings aren't of use). | |
2065 | * | |
2066 | * Here we take these two factors and refuse to start a service if there are existing processes | |
2067 | * within a control group. Databases, while generally having some protection against multiple | |
2068 | * instances running, lets not stress the rigor of these. Also ExecStartPre parts of the service | |
2069 | * aren't as rigoriously written to protect aganst against multiple use. */ | |
2070 | if (unit_warn_leftover_processes(UNIT(s)) && | |
2071 | IN_SET(s->kill_context.kill_mode, KILL_MIXED, KILL_CONTROL_GROUP) && | |
569554d9 ZJS |
2072 | !s->kill_context.send_sigkill) |
2073 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(EBUSY), | |
2074 | "Will not start SendSIGKILL=no service of type KillMode=control-group or mixed while processes exist"); | |
2075 | ||
c53d2d54 DB |
2076 | return 0; |
2077 | } | |
2078 | ||
034c6ed7 | 2079 | static void service_enter_start(Service *s) { |
4ad49000 | 2080 | ExecCommand *c; |
36c16a7c | 2081 | usec_t timeout; |
034c6ed7 LP |
2082 | pid_t pid; |
2083 | int r; | |
2084 | ||
2085 | assert(s); | |
2086 | ||
41efeaec LP |
2087 | service_unwatch_control_pid(s); |
2088 | service_unwatch_main_pid(s); | |
80876c20 | 2089 | |
c53d2d54 DB |
2090 | r = service_adverse_to_leftover_processes(s); |
2091 | if (r < 0) | |
2092 | goto fail; | |
a4634b21 | 2093 | |
867b3b7d LP |
2094 | if (s->type == SERVICE_FORKING) { |
2095 | s->control_command_id = SERVICE_EXEC_START; | |
2096 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
2097 | ||
2098 | s->main_command = NULL; | |
2099 | } else { | |
2100 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2101 | s->control_command = NULL; | |
2102 | ||
2103 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
2104 | } | |
34e9ba66 | 2105 | |
96fb8242 | 2106 | if (!c) { |
47fffb35 LP |
2107 | if (s->type != SERVICE_ONESHOT) { |
2108 | /* There's no command line configured for the main command? Hmm, that is strange. This can only | |
2109 | * happen if the configuration changes at runtime. In this case, let's enter a failure | |
2110 | * state. */ | |
b8b846d7 | 2111 | log_unit_error(UNIT(s), "There's no 'start' task anymore we could start."); |
47fffb35 LP |
2112 | r = -ENXIO; |
2113 | goto fail; | |
2114 | } | |
2115 | ||
ef5ae8e7 ZJS |
2116 | /* We force a fake state transition here. Otherwise, the unit would go directly from |
2117 | * SERVICE_DEAD to SERVICE_DEAD without SERVICE_ACTIVATING or SERVICE_ACTIVE | |
5238e957 | 2118 | * in between. This way we can later trigger actions that depend on the state |
ef5ae8e7 ZJS |
2119 | * transition, including SuccessAction=. */ |
2120 | service_set_state(s, SERVICE_START); | |
2121 | ||
96fb8242 LP |
2122 | service_enter_start_post(s); |
2123 | return; | |
2124 | } | |
2125 | ||
36c16a7c LP |
2126 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) |
2127 | /* For simple + idle this is the main process. We don't apply any timeout here, but | |
2128 | * service_enter_running() will later apply the .runtime_max_usec timeout. */ | |
2129 | timeout = USEC_INFINITY; | |
2130 | else | |
2131 | timeout = s->timeout_start_usec; | |
2132 | ||
ecedd90f LP |
2133 | r = service_spawn(s, |
2134 | c, | |
36c16a7c | 2135 | timeout, |
1703fa41 | 2136 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
2137 | &pid); |
2138 | if (r < 0) | |
034c6ed7 LP |
2139 | goto fail; |
2140 | ||
36c16a7c | 2141 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) { |
034c6ed7 LP |
2142 | /* For simple services we immediately start |
2143 | * the START_POST binaries. */ | |
2144 | ||
5925dd3c | 2145 | service_set_main_pid(s, pid); |
034c6ed7 LP |
2146 | service_enter_start_post(s); |
2147 | ||
2148 | } else if (s->type == SERVICE_FORKING) { | |
2149 | ||
2150 | /* For forking services we wait until the start | |
2151 | * process exited. */ | |
2152 | ||
e55224ca | 2153 | s->control_pid = pid; |
80876c20 LP |
2154 | service_set_state(s, SERVICE_START); |
2155 | ||
5686391b | 2156 | } else if (IN_SET(s->type, SERVICE_ONESHOT, SERVICE_DBUS, SERVICE_NOTIFY, SERVICE_EXEC)) { |
7d55e835 | 2157 | |
5686391b | 2158 | /* For oneshot services we wait until the start process exited, too, but it is our main process. */ |
7d55e835 | 2159 | |
5686391b LP |
2160 | /* For D-Bus services we know the main pid right away, but wait for the bus name to appear on the |
2161 | * bus. 'notify' and 'exec' services are similar. */ | |
05e343b7 | 2162 | |
5925dd3c | 2163 | service_set_main_pid(s, pid); |
80876c20 | 2164 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
2165 | } else |
2166 | assert_not_reached("Unknown service type"); | |
2167 | ||
2168 | return; | |
2169 | ||
2170 | fail: | |
f2341e0a | 2171 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
c3fda31d | 2172 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2173 | } |
2174 | ||
2175 | static void service_enter_start_pre(Service *s) { | |
2176 | int r; | |
2177 | ||
2178 | assert(s); | |
2179 | ||
5e94833f LP |
2180 | service_unwatch_control_pid(s); |
2181 | ||
117dcc57 ZJS |
2182 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
2183 | if (s->control_command) { | |
8f53a7b8 | 2184 | |
c53d2d54 DB |
2185 | r = service_adverse_to_leftover_processes(s); |
2186 | if (r < 0) | |
2187 | goto fail; | |
a4634b21 | 2188 | |
867b3b7d LP |
2189 | s->control_command_id = SERVICE_EXEC_START_PRE; |
2190 | ||
ecedd90f LP |
2191 | r = service_spawn(s, |
2192 | s->control_command, | |
21b2ce39 | 2193 | s->timeout_start_usec, |
1703fa41 | 2194 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, |
ecedd90f LP |
2195 | &s->control_pid); |
2196 | if (r < 0) | |
034c6ed7 LP |
2197 | goto fail; |
2198 | ||
80876c20 LP |
2199 | service_set_state(s, SERVICE_START_PRE); |
2200 | } else | |
034c6ed7 LP |
2201 | service_enter_start(s); |
2202 | ||
2203 | return; | |
2204 | ||
2205 | fail: | |
f2341e0a | 2206 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 2207 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2208 | } |
2209 | ||
31cd5f63 AZ |
2210 | static void service_enter_condition(Service *s) { |
2211 | int r; | |
2212 | ||
2213 | assert(s); | |
2214 | ||
2215 | service_unwatch_control_pid(s); | |
2216 | ||
2217 | s->control_command = s->exec_command[SERVICE_EXEC_CONDITION]; | |
2218 | if (s->control_command) { | |
2219 | ||
2220 | r = service_adverse_to_leftover_processes(s); | |
2221 | if (r < 0) | |
2222 | goto fail; | |
2223 | ||
2224 | s->control_command_id = SERVICE_EXEC_CONDITION; | |
2225 | ||
2226 | r = service_spawn(s, | |
2227 | s->control_command, | |
2228 | s->timeout_start_usec, | |
2229 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, | |
2230 | &s->control_pid); | |
2231 | ||
2232 | if (r < 0) | |
2233 | goto fail; | |
2234 | ||
2235 | service_set_state(s, SERVICE_CONDITION); | |
2236 | } else | |
2237 | service_enter_start_pre(s); | |
2238 | ||
2239 | return; | |
2240 | ||
2241 | fail: | |
2242 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'exec-condition' task: %m"); | |
2243 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); | |
2244 | } | |
2245 | ||
034c6ed7 | 2246 | static void service_enter_restart(Service *s) { |
4afd3348 | 2247 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 2248 | int r; |
398ef8ba | 2249 | |
034c6ed7 LP |
2250 | assert(s); |
2251 | ||
28a2dfe8 | 2252 | if (unit_has_job_type(UNIT(s), JOB_STOP)) { |
a8bb2e65 | 2253 | /* Don't restart things if we are going down anyway */ |
f2341e0a | 2254 | log_unit_info(UNIT(s), "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 2255 | |
36c16a7c | 2256 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
a8bb2e65 | 2257 | if (r < 0) |
2edfa366 | 2258 | goto fail; |
feae8adb DW |
2259 | |
2260 | return; | |
2edfa366 LP |
2261 | } |
2262 | ||
48bb5876 DW |
2263 | /* Any units that are bound to this service must also be |
2264 | * restarted. We use JOB_RESTART (instead of the more obvious | |
2265 | * JOB_START) here so that those dependency jobs will be added | |
2266 | * as well. */ | |
50cbaba4 | 2267 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_REPLACE, NULL, &error, NULL); |
48bb5876 | 2268 | if (r < 0) |
034c6ed7 LP |
2269 | goto fail; |
2270 | ||
7a0019d3 LP |
2271 | /* Count the jobs we enqueue for restarting. This counter is maintained as long as the unit isn't fully |
2272 | * stopped, i.e. as long as it remains up or remains in auto-start states. The use can reset the counter | |
2273 | * explicitly however via the usual "systemctl reset-failure" logic. */ | |
2274 | s->n_restarts ++; | |
2275 | s->flush_n_restarts = false; | |
2276 | ||
2277 | log_struct(LOG_INFO, | |
2278 | "MESSAGE_ID=" SD_MESSAGE_UNIT_RESTART_SCHEDULED_STR, | |
2279 | LOG_UNIT_ID(UNIT(s)), | |
f1c50bec | 2280 | LOG_UNIT_INVOCATION_ID(UNIT(s)), |
7a0019d3 | 2281 | LOG_UNIT_MESSAGE(UNIT(s), "Scheduled restart job, restart counter is at %u.", s->n_restarts), |
a1230ff9 | 2282 | "N_RESTARTS=%u", s->n_restarts); |
7a0019d3 LP |
2283 | |
2284 | /* Notify clients about changed restart counter */ | |
2285 | unit_add_to_dbus_queue(UNIT(s)); | |
2286 | ||
a8bb2e65 LP |
2287 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
2288 | * it will be canceled as part of the service_stop() call that | |
2289 | * is executed as part of JOB_RESTART. */ | |
2290 | ||
034c6ed7 LP |
2291 | return; |
2292 | ||
2293 | fail: | |
f2341e0a | 2294 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, -r)); |
f42806df | 2295 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
2296 | } |
2297 | ||
308d72dc | 2298 | static void service_enter_reload_by_notify(Service *s) { |
15d167f8 JW |
2299 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
2300 | int r; | |
2301 | ||
308d72dc LP |
2302 | assert(s); |
2303 | ||
36c16a7c | 2304 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_start_usec)); |
308d72dc | 2305 | service_set_state(s, SERVICE_RELOAD); |
15d167f8 JW |
2306 | |
2307 | /* service_enter_reload_by_notify is never called during a reload, thus no loops are possible. */ | |
2308 | r = manager_propagate_reload(UNIT(s)->manager, UNIT(s), JOB_FAIL, &error); | |
2309 | if (r < 0) | |
2310 | log_unit_warning(UNIT(s), "Failed to schedule propagation of reload: %s", bus_error_message(&error, -r)); | |
308d72dc LP |
2311 | } |
2312 | ||
034c6ed7 LP |
2313 | static void service_enter_reload(Service *s) { |
2314 | int r; | |
2315 | ||
2316 | assert(s); | |
2317 | ||
5e94833f | 2318 | service_unwatch_control_pid(s); |
95c906ae | 2319 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 2320 | |
117dcc57 ZJS |
2321 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
2322 | if (s->control_command) { | |
867b3b7d LP |
2323 | s->control_command_id = SERVICE_EXEC_RELOAD; |
2324 | ||
ecedd90f LP |
2325 | r = service_spawn(s, |
2326 | s->control_command, | |
21b2ce39 | 2327 | s->timeout_start_usec, |
78f93209 | 2328 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
2329 | &s->control_pid); |
2330 | if (r < 0) | |
034c6ed7 LP |
2331 | goto fail; |
2332 | ||
80876c20 LP |
2333 | service_set_state(s, SERVICE_RELOAD); |
2334 | } else | |
f42806df | 2335 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2336 | |
2337 | return; | |
2338 | ||
2339 | fail: | |
f2341e0a | 2340 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
2341 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2342 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2343 | } |
2344 | ||
f42806df | 2345 | static void service_run_next_control(Service *s) { |
36c16a7c | 2346 | usec_t timeout; |
034c6ed7 LP |
2347 | int r; |
2348 | ||
2349 | assert(s); | |
2350 | assert(s->control_command); | |
2351 | assert(s->control_command->command_next); | |
2352 | ||
34e9ba66 | 2353 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2354 | |
34e9ba66 | 2355 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2356 | service_unwatch_control_pid(s); |
2357 | ||
31cd5f63 | 2358 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
36c16a7c LP |
2359 | timeout = s->timeout_start_usec; |
2360 | else | |
2361 | timeout = s->timeout_stop_usec; | |
2362 | ||
ecedd90f LP |
2363 | r = service_spawn(s, |
2364 | s->control_command, | |
36c16a7c | 2365 | timeout, |
1703fa41 | 2366 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL| |
31cd5f63 | 2367 | (IN_SET(s->control_command_id, SERVICE_EXEC_CONDITION, SERVICE_EXEC_START_PRE, SERVICE_EXEC_STOP_POST) ? EXEC_APPLY_TTY_STDIN : 0)| |
78f93209 LP |
2368 | (IN_SET(s->control_command_id, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST) ? EXEC_SETENV_RESULT : 0)| |
2369 | (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 |
2370 | &s->control_pid); |
2371 | if (r < 0) | |
034c6ed7 LP |
2372 | goto fail; |
2373 | ||
2374 | return; | |
2375 | ||
2376 | fail: | |
f2341e0a | 2377 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 2378 | |
31cd5f63 | 2379 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START_POST, SERVICE_STOP)) |
f42806df | 2380 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2381 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2382 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2383 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2384 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2385 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2386 | } else |
f42806df | 2387 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2388 | } |
2389 | ||
f42806df | 2390 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2391 | pid_t pid; |
2392 | int r; | |
2393 | ||
2394 | assert(s); | |
867b3b7d LP |
2395 | assert(s->main_command); |
2396 | assert(s->main_command->command_next); | |
2397 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2398 | |
867b3b7d | 2399 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2400 | service_unwatch_main_pid(s); |
2401 | ||
ecedd90f LP |
2402 | r = service_spawn(s, |
2403 | s->main_command, | |
21b2ce39 | 2404 | s->timeout_start_usec, |
1703fa41 | 2405 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
2406 | &pid); |
2407 | if (r < 0) | |
34e9ba66 LP |
2408 | goto fail; |
2409 | ||
2410 | service_set_main_pid(s, pid); | |
2411 | ||
2412 | return; | |
2413 | ||
2414 | fail: | |
f2341e0a | 2415 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 2416 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2417 | } |
2418 | ||
87f0e418 LP |
2419 | static int service_start(Unit *u) { |
2420 | Service *s = SERVICE(u); | |
07299350 | 2421 | int r; |
5cb5a6ff LP |
2422 | |
2423 | assert(s); | |
2424 | ||
034c6ed7 LP |
2425 | /* We cannot fulfill this request right now, try again later |
2426 | * please! */ | |
a00973af | 2427 | if (IN_SET(s->state, |
c87700a1 | 2428 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 | 2429 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, SERVICE_CLEANING)) |
5cb5a6ff LP |
2430 | return -EAGAIN; |
2431 | ||
034c6ed7 | 2432 | /* Already on it! */ |
31cd5f63 | 2433 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
2434 | return 0; |
2435 | ||
2e9d6c12 | 2436 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2437 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2438 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2439 | * service should be manually restarted, not started. We |
2440 | * simply return EAGAIN here, so that any start jobs stay | |
2441 | * queued, and assume that the auto restart timer will | |
2442 | * eventually trigger the restart. */ | |
2443 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2444 | return -EAGAIN; |
2e9d6c12 | 2445 | |
a00973af | 2446 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 2447 | |
07299350 | 2448 | /* Make sure we don't enter a busy loop of some kind. */ |
97a3f4ee | 2449 | r = unit_test_start_limit(u); |
07299350 LP |
2450 | if (r < 0) { |
2451 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT_HIT, false); | |
2452 | return r; | |
2453 | } | |
2454 | ||
4b58153d LP |
2455 | r = unit_acquire_invocation_id(u); |
2456 | if (r < 0) | |
2457 | return r; | |
2458 | ||
f42806df LP |
2459 | s->result = SERVICE_SUCCESS; |
2460 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2461 | s->main_pid_known = false; |
6dfa5494 | 2462 | s->main_pid_alien = false; |
47342320 | 2463 | s->forbid_restart = false; |
3c7416b6 | 2464 | |
a1e58e8e | 2465 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
2466 | s->status_errno = 0; |
2467 | ||
308d72dc LP |
2468 | s->notify_state = NOTIFY_UNKNOWN; |
2469 | ||
aa8c4bbf | 2470 | s->watchdog_original_usec = s->watchdog_usec; |
2787d83c | 2471 | s->watchdog_override_enable = false; |
aa8c4bbf | 2472 | s->watchdog_override_usec = USEC_INFINITY; |
2787d83c | 2473 | |
6a1d4d9f LP |
2474 | exec_command_reset_status_list_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
2475 | exec_status_reset(&s->main_exec_status); | |
2476 | ||
7a0019d3 LP |
2477 | /* This is not an automatic restart? Flush the restart counter then */ |
2478 | if (s->flush_n_restarts) { | |
2479 | s->n_restarts = 0; | |
2480 | s->flush_n_restarts = false; | |
2481 | } | |
2482 | ||
6a1d4d9f LP |
2483 | u->reset_accounting = true; |
2484 | ||
31cd5f63 | 2485 | service_enter_condition(s); |
82a2b6bb | 2486 | return 1; |
5cb5a6ff LP |
2487 | } |
2488 | ||
87f0e418 LP |
2489 | static int service_stop(Unit *u) { |
2490 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2491 | |
2492 | assert(s); | |
2493 | ||
a509f0e6 | 2494 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2495 | s->forbid_restart = true; |
034c6ed7 | 2496 | |
e537352b | 2497 | /* Already on it */ |
a00973af | 2498 | if (IN_SET(s->state, |
dc653bf4 | 2499 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
a00973af | 2500 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) |
e537352b LP |
2501 | return 0; |
2502 | ||
f0c7b229 | 2503 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2504 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2505 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2506 | return 0; |
2507 | } | |
2508 | ||
3f6c78dc LP |
2509 | /* If there's already something running we go directly into |
2510 | * kill mode. */ | |
31cd5f63 | 2511 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD, SERVICE_STOP_WATCHDOG)) { |
f42806df | 2512 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2513 | return 0; |
2514 | } | |
5cb5a6ff | 2515 | |
4c2f5842 LP |
2516 | /* If we are currently cleaning, then abort it, brutally. */ |
2517 | if (s->state == SERVICE_CLEANING) { | |
2518 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); | |
2519 | return 0; | |
2520 | } | |
2521 | ||
a00973af | 2522 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2523 | |
f42806df | 2524 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2525 | return 1; |
5cb5a6ff LP |
2526 | } |
2527 | ||
87f0e418 LP |
2528 | static int service_reload(Unit *u) { |
2529 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2530 | |
2531 | assert(s); | |
2532 | ||
3742095b | 2533 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
034c6ed7 LP |
2534 | |
2535 | service_enter_reload(s); | |
2d018ae2 | 2536 | return 1; |
5cb5a6ff LP |
2537 | } |
2538 | ||
44a6b1b6 | 2539 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2540 | Service *s = SERVICE(u); |
034c6ed7 LP |
2541 | |
2542 | assert(s); | |
2543 | ||
2544 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2545 | } | |
2546 | ||
e266c068 MS |
2547 | static unsigned service_exec_command_index(Unit *u, ServiceExecCommand id, ExecCommand *current) { |
2548 | Service *s = SERVICE(u); | |
2549 | unsigned idx = 0; | |
2550 | ExecCommand *first, *c; | |
2551 | ||
2552 | assert(s); | |
2553 | ||
2554 | first = s->exec_command[id]; | |
2555 | ||
2556 | /* Figure out where we are in the list by walking back to the beginning */ | |
2557 | for (c = current; c != first; c = c->command_prev) | |
2558 | idx++; | |
2559 | ||
2560 | return idx; | |
2561 | } | |
2562 | ||
2563 | static int service_serialize_exec_command(Unit *u, FILE *f, ExecCommand *command) { | |
d68c645b LP |
2564 | _cleanup_free_ char *args = NULL, *p = NULL; |
2565 | size_t allocated = 0, length = 0; | |
e266c068 | 2566 | Service *s = SERVICE(u); |
d68c645b | 2567 | const char *type, *key; |
e266c068 MS |
2568 | ServiceExecCommand id; |
2569 | unsigned idx; | |
e266c068 | 2570 | char **arg; |
e266c068 MS |
2571 | |
2572 | assert(s); | |
2573 | assert(f); | |
2574 | ||
2575 | if (!command) | |
2576 | return 0; | |
2577 | ||
2578 | if (command == s->control_command) { | |
2579 | type = "control"; | |
2580 | id = s->control_command_id; | |
2581 | } else { | |
2582 | type = "main"; | |
2583 | id = SERVICE_EXEC_START; | |
2584 | } | |
2585 | ||
2586 | idx = service_exec_command_index(u, id, command); | |
2587 | ||
2588 | STRV_FOREACH(arg, command->argv) { | |
e266c068 | 2589 | _cleanup_free_ char *e = NULL; |
d68c645b | 2590 | size_t n; |
e266c068 | 2591 | |
d68c645b | 2592 | e = cescape(*arg); |
e266c068 | 2593 | if (!e) |
d68c645b | 2594 | return log_oom(); |
e266c068 MS |
2595 | |
2596 | n = strlen(e); | |
334c0979 | 2597 | if (!GREEDY_REALLOC(args, allocated, length + 2 + n + 2)) |
d68c645b | 2598 | return log_oom(); |
e266c068 MS |
2599 | |
2600 | if (length > 0) | |
2601 | args[length++] = ' '; | |
2602 | ||
334c0979 | 2603 | args[length++] = '"'; |
e266c068 MS |
2604 | memcpy(args + length, e, n); |
2605 | length += n; | |
334c0979 | 2606 | args[length++] = '"'; |
e266c068 MS |
2607 | } |
2608 | ||
2609 | if (!GREEDY_REALLOC(args, allocated, length + 1)) | |
d68c645b LP |
2610 | return log_oom(); |
2611 | ||
e266c068 MS |
2612 | args[length++] = 0; |
2613 | ||
d68c645b | 2614 | p = cescape(command->path); |
e266c068 MS |
2615 | if (!p) |
2616 | return -ENOMEM; | |
2617 | ||
d68c645b LP |
2618 | key = strjoina(type, "-command"); |
2619 | return serialize_item_format(f, key, "%s %u %s %s", service_exec_command_to_string(id), idx, p, args); | |
e266c068 MS |
2620 | } |
2621 | ||
a16e1123 LP |
2622 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2623 | Service *s = SERVICE(u); | |
2339fc93 | 2624 | ServiceFDStore *fs; |
a34ceba6 | 2625 | int r; |
a16e1123 LP |
2626 | |
2627 | assert(u); | |
2628 | assert(f); | |
2629 | assert(fds); | |
2630 | ||
d68c645b LP |
2631 | (void) serialize_item(f, "state", service_state_to_string(s->state)); |
2632 | (void) serialize_item(f, "result", service_result_to_string(s->result)); | |
2633 | (void) serialize_item(f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2634 | |
2635 | if (s->control_pid > 0) | |
d68c645b | 2636 | (void) serialize_item_format(f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2637 | |
5925dd3c | 2638 | if (s->main_pid_known && s->main_pid > 0) |
d68c645b | 2639 | (void) serialize_item_format(f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 | 2640 | |
d68c645b LP |
2641 | (void) serialize_bool(f, "main-pid-known", s->main_pid_known); |
2642 | (void) serialize_bool(f, "bus-name-good", s->bus_name_good); | |
2643 | (void) serialize_bool(f, "bus-name-owner", s->bus_name_owner); | |
a16e1123 | 2644 | |
d68c645b LP |
2645 | (void) serialize_item_format(f, "n-restarts", "%u", s->n_restarts); |
2646 | (void) serialize_bool(f, "flush-n-restarts", s->flush_n_restarts); | |
7a0019d3 | 2647 | |
d68c645b | 2648 | r = serialize_item_escaped(f, "status-text", s->status_text); |
a34ceba6 LP |
2649 | if (r < 0) |
2650 | return r; | |
3a2776bc | 2651 | |
e266c068 MS |
2652 | service_serialize_exec_command(u, f, s->control_command); |
2653 | service_serialize_exec_command(u, f, s->main_command); | |
a16e1123 | 2654 | |
d68c645b | 2655 | r = serialize_fd(f, fds, "stdin-fd", s->stdin_fd); |
a34ceba6 LP |
2656 | if (r < 0) |
2657 | return r; | |
d68c645b | 2658 | r = serialize_fd(f, fds, "stdout-fd", s->stdout_fd); |
a34ceba6 LP |
2659 | if (r < 0) |
2660 | return r; | |
d68c645b | 2661 | r = serialize_fd(f, fds, "stderr-fd", s->stderr_fd); |
a34ceba6 LP |
2662 | if (r < 0) |
2663 | return r; | |
e44da745 | 2664 | |
5686391b | 2665 | if (s->exec_fd_event_source) { |
d68c645b | 2666 | r = serialize_fd(f, fds, "exec-fd", sd_event_source_get_io_fd(s->exec_fd_event_source)); |
5686391b LP |
2667 | if (r < 0) |
2668 | return r; | |
d68c645b LP |
2669 | |
2670 | (void) serialize_bool(f, "exec-fd-hot", s->exec_fd_hot); | |
5686391b LP |
2671 | } |
2672 | ||
9dfb64f8 | 2673 | if (UNIT_ISSET(s->accept_socket)) { |
d68c645b | 2674 | r = serialize_item(f, "accept-socket", UNIT_DEREF(s->accept_socket)->id); |
9dfb64f8 ZJS |
2675 | if (r < 0) |
2676 | return r; | |
2677 | } | |
2678 | ||
d68c645b | 2679 | r = serialize_fd(f, fds, "socket-fd", s->socket_fd); |
a34ceba6 LP |
2680 | if (r < 0) |
2681 | return r; | |
e44da745 | 2682 | |
2339fc93 | 2683 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2684 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2685 | int copy; |
2686 | ||
2687 | copy = fdset_put_dup(fds, fs->fd); | |
2688 | if (copy < 0) | |
d68c645b | 2689 | return log_error_errno(copy, "Failed to copy file descriptor for serialization: %m"); |
2339fc93 | 2690 | |
8dd4c05b | 2691 | c = cescape(fs->fdname); |
d68c645b LP |
2692 | if (!c) |
2693 | return log_oom(); | |
8dd4c05b | 2694 | |
d68c645b | 2695 | (void) serialize_item_format(f, "fd-store-fd", "%i %s", copy, c); |
2339fc93 LP |
2696 | } |
2697 | ||
ecdbca40 | 2698 | if (s->main_exec_status.pid > 0) { |
d68c645b LP |
2699 | (void) serialize_item_format(f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2700 | (void) serialize_dual_timestamp(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2701 | (void) serialize_dual_timestamp(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2702 | |
799fd0fd | 2703 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
d68c645b LP |
2704 | (void) serialize_item_format(f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2705 | (void) serialize_item_format(f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2706 | } |
2707 | } | |
f06db334 | 2708 | |
d68c645b LP |
2709 | (void) serialize_dual_timestamp(f, "watchdog-timestamp", &s->watchdog_timestamp); |
2710 | (void) serialize_bool(f, "forbid-restart", s->forbid_restart); | |
6aca9a58 | 2711 | |
2787d83c | 2712 | if (s->watchdog_override_enable) |
d68c645b | 2713 | (void) serialize_item_format(f, "watchdog-override-usec", USEC_FMT, s->watchdog_override_usec); |
2787d83c | 2714 | |
aa8c4bbf LP |
2715 | if (s->watchdog_original_usec != USEC_INFINITY) |
2716 | (void) serialize_item_format(f, "watchdog-original-usec", USEC_FMT, s->watchdog_original_usec); | |
2717 | ||
a16e1123 LP |
2718 | return 0; |
2719 | } | |
2720 | ||
e266c068 MS |
2721 | static int service_deserialize_exec_command(Unit *u, const char *key, const char *value) { |
2722 | Service *s = SERVICE(u); | |
2723 | int r; | |
2724 | unsigned idx = 0, i; | |
2725 | bool control, found = false; | |
2726 | ServiceExecCommand id = _SERVICE_EXEC_COMMAND_INVALID; | |
2727 | ExecCommand *command = NULL; | |
6eeec374 | 2728 | _cleanup_free_ char *path = NULL; |
e266c068 MS |
2729 | _cleanup_strv_free_ char **argv = NULL; |
2730 | ||
2731 | enum ExecCommandState { | |
2732 | STATE_EXEC_COMMAND_TYPE, | |
2733 | STATE_EXEC_COMMAND_INDEX, | |
2734 | STATE_EXEC_COMMAND_PATH, | |
2735 | STATE_EXEC_COMMAND_ARGS, | |
2736 | _STATE_EXEC_COMMAND_MAX, | |
2737 | _STATE_EXEC_COMMAND_INVALID = -1, | |
2738 | } state; | |
2739 | ||
2740 | assert(s); | |
2741 | assert(key); | |
2742 | assert(value); | |
2743 | ||
2744 | control = streq(key, "control-command"); | |
2745 | ||
2746 | state = STATE_EXEC_COMMAND_TYPE; | |
2747 | ||
2748 | for (;;) { | |
2749 | _cleanup_free_ char *arg = NULL; | |
2750 | ||
334c0979 | 2751 | r = extract_first_word(&value, &arg, NULL, EXTRACT_CUNESCAPE | EXTRACT_UNQUOTE); |
efa3f34e LP |
2752 | if (r < 0) |
2753 | return r; | |
e266c068 MS |
2754 | if (r == 0) |
2755 | break; | |
e266c068 MS |
2756 | |
2757 | switch (state) { | |
2758 | case STATE_EXEC_COMMAND_TYPE: | |
2759 | id = service_exec_command_from_string(arg); | |
2760 | if (id < 0) | |
2761 | return -EINVAL; | |
2762 | ||
2763 | state = STATE_EXEC_COMMAND_INDEX; | |
2764 | break; | |
2765 | case STATE_EXEC_COMMAND_INDEX: | |
2766 | r = safe_atou(arg, &idx); | |
2767 | if (r < 0) | |
2768 | return -EINVAL; | |
2769 | ||
2770 | state = STATE_EXEC_COMMAND_PATH; | |
2771 | break; | |
2772 | case STATE_EXEC_COMMAND_PATH: | |
ae2a15bc | 2773 | path = TAKE_PTR(arg); |
e266c068 MS |
2774 | state = STATE_EXEC_COMMAND_ARGS; |
2775 | ||
2776 | if (!path_is_absolute(path)) | |
2777 | return -EINVAL; | |
2778 | break; | |
2779 | case STATE_EXEC_COMMAND_ARGS: | |
2780 | r = strv_extend(&argv, arg); | |
2781 | if (r < 0) | |
2782 | return -ENOMEM; | |
2783 | break; | |
2784 | default: | |
2785 | assert_not_reached("Unknown error at deserialization of exec command"); | |
2786 | break; | |
2787 | } | |
2788 | } | |
2789 | ||
2790 | if (state != STATE_EXEC_COMMAND_ARGS) | |
2791 | return -EINVAL; | |
2792 | ||
2793 | /* Let's check whether exec command on given offset matches data that we just deserialized */ | |
2794 | for (command = s->exec_command[id], i = 0; command; command = command->command_next, i++) { | |
2795 | if (i != idx) | |
2796 | continue; | |
2797 | ||
2798 | found = strv_equal(argv, command->argv) && streq(command->path, path); | |
2799 | break; | |
2800 | } | |
2801 | ||
2802 | if (!found) { | |
2803 | /* Command at the index we serialized is different, let's look for command that exactly | |
2804 | * matches but is on different index. If there is no such command we will not resume execution. */ | |
2805 | for (command = s->exec_command[id]; command; command = command->command_next) | |
2806 | if (strv_equal(command->argv, argv) && streq(command->path, path)) | |
2807 | break; | |
2808 | } | |
2809 | ||
2810 | if (command && control) | |
2811 | s->control_command = command; | |
2812 | else if (command) | |
2813 | s->main_command = command; | |
2814 | else | |
2815 | log_unit_warning(u, "Current command vanished from the unit file, execution of the command list won't be resumed."); | |
2816 | ||
2817 | return 0; | |
2818 | } | |
2819 | ||
a16e1123 LP |
2820 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { |
2821 | Service *s = SERVICE(u); | |
2339fc93 | 2822 | int r; |
a16e1123 LP |
2823 | |
2824 | assert(u); | |
2825 | assert(key); | |
2826 | assert(value); | |
2827 | assert(fds); | |
2828 | ||
2829 | if (streq(key, "state")) { | |
2830 | ServiceState state; | |
2831 | ||
117dcc57 ZJS |
2832 | state = service_state_from_string(value); |
2833 | if (state < 0) | |
f2341e0a | 2834 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2835 | else |
2836 | s->deserialized_state = state; | |
f42806df LP |
2837 | } else if (streq(key, "result")) { |
2838 | ServiceResult f; | |
2839 | ||
2840 | f = service_result_from_string(value); | |
2841 | if (f < 0) | |
f2341e0a | 2842 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2843 | else if (f != SERVICE_SUCCESS) |
2844 | s->result = f; | |
2845 | ||
2846 | } else if (streq(key, "reload-result")) { | |
2847 | ServiceResult f; | |
2848 | ||
2849 | f = service_result_from_string(value); | |
2850 | if (f < 0) | |
f2341e0a | 2851 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2852 | else if (f != SERVICE_SUCCESS) |
2853 | s->reload_result = f; | |
a16e1123 | 2854 | |
a16e1123 | 2855 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2856 | pid_t pid; |
a16e1123 | 2857 | |
e364ad06 | 2858 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2859 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2860 | else |
e55224ca | 2861 | s->control_pid = pid; |
a16e1123 | 2862 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2863 | pid_t pid; |
a16e1123 | 2864 | |
e364ad06 | 2865 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2866 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
eabd3e56 LP |
2867 | else |
2868 | (void) service_set_main_pid(s, pid); | |
a16e1123 LP |
2869 | } else if (streq(key, "main-pid-known")) { |
2870 | int b; | |
2871 | ||
117dcc57 ZJS |
2872 | b = parse_boolean(value); |
2873 | if (b < 0) | |
f2341e0a | 2874 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2875 | else |
2876 | s->main_pid_known = b; | |
de1d4f9b WF |
2877 | } else if (streq(key, "bus-name-good")) { |
2878 | int b; | |
2879 | ||
2880 | b = parse_boolean(value); | |
2881 | if (b < 0) | |
2882 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2883 | else | |
2884 | s->bus_name_good = b; | |
d8ccf5fd DM |
2885 | } else if (streq(key, "bus-name-owner")) { |
2886 | r = free_and_strdup(&s->bus_name_owner, value); | |
2887 | if (r < 0) | |
2888 | log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value); | |
3a2776bc LP |
2889 | } else if (streq(key, "status-text")) { |
2890 | char *t; | |
2891 | ||
f2341e0a LP |
2892 | r = cunescape(value, 0, &t); |
2893 | if (r < 0) | |
5e1ee764 | 2894 | log_unit_debug_errno(u, r, "Failed to unescape status text '%s': %m", value); |
efa3f34e LP |
2895 | else |
2896 | free_and_replace(s->status_text, t); | |
3a2776bc | 2897 | |
9dfb64f8 ZJS |
2898 | } else if (streq(key, "accept-socket")) { |
2899 | Unit *socket; | |
2900 | ||
2901 | r = manager_load_unit(u->manager, value, NULL, NULL, &socket); | |
2902 | if (r < 0) | |
5e1ee764 | 2903 | log_unit_debug_errno(u, r, "Failed to load accept-socket unit '%s': %m", value); |
9dfb64f8 | 2904 | else { |
7f7d01ed | 2905 | unit_ref_set(&s->accept_socket, u, socket); |
9dfb64f8 ZJS |
2906 | SOCKET(socket)->n_connections++; |
2907 | } | |
2908 | ||
a16e1123 LP |
2909 | } else if (streq(key, "socket-fd")) { |
2910 | int fd; | |
2911 | ||
2912 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2913 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 2914 | else { |
574634bc | 2915 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
2916 | s->socket_fd = fdset_remove(fds, fd); |
2917 | } | |
2339fc93 | 2918 | } else if (streq(key, "fd-store-fd")) { |
8dd4c05b LP |
2919 | const char *fdv; |
2920 | size_t pf; | |
2339fc93 LP |
2921 | int fd; |
2922 | ||
8dd4c05b LP |
2923 | pf = strcspn(value, WHITESPACE); |
2924 | fdv = strndupa(value, pf); | |
2925 | ||
2926 | if (safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2927 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
2339fc93 | 2928 | else { |
8dd4c05b LP |
2929 | _cleanup_free_ char *t = NULL; |
2930 | const char *fdn; | |
2931 | ||
2932 | fdn = value + pf; | |
2933 | fdn += strspn(fdn, WHITESPACE); | |
2934 | (void) cunescape(fdn, 0, &t); | |
2935 | ||
2936 | r = service_add_fd_store(s, fd, t); | |
2339fc93 | 2937 | if (r < 0) |
f2341e0a | 2938 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); |
9021ff17 | 2939 | else |
2339fc93 LP |
2940 | fdset_remove(fds, fd); |
2941 | } | |
2942 | ||
ecdbca40 LP |
2943 | } else if (streq(key, "main-exec-status-pid")) { |
2944 | pid_t pid; | |
2945 | ||
e364ad06 | 2946 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2947 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
2948 | else |
2949 | s->main_exec_status.pid = pid; | |
2950 | } else if (streq(key, "main-exec-status-code")) { | |
2951 | int i; | |
2952 | ||
e364ad06 | 2953 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2954 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
2955 | else |
2956 | s->main_exec_status.code = i; | |
2957 | } else if (streq(key, "main-exec-status-status")) { | |
2958 | int i; | |
2959 | ||
e364ad06 | 2960 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2961 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
2962 | else |
2963 | s->main_exec_status.status = i; | |
799fd0fd | 2964 | } else if (streq(key, "main-exec-status-start")) |
d68c645b | 2965 | deserialize_dual_timestamp(value, &s->main_exec_status.start_timestamp); |
799fd0fd | 2966 | else if (streq(key, "main-exec-status-exit")) |
d68c645b | 2967 | deserialize_dual_timestamp(value, &s->main_exec_status.exit_timestamp); |
a6927d7f | 2968 | else if (streq(key, "watchdog-timestamp")) |
d68c645b | 2969 | deserialize_dual_timestamp(value, &s->watchdog_timestamp); |
613b411c | 2970 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2971 | int b; |
2972 | ||
2973 | b = parse_boolean(value); | |
2974 | if (b < 0) | |
f2341e0a | 2975 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
2976 | else |
2977 | s->forbid_restart = b; | |
a34ceba6 LP |
2978 | } else if (streq(key, "stdin-fd")) { |
2979 | int fd; | |
2980 | ||
2981 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2982 | log_unit_debug(u, "Failed to parse stdin-fd value: %s", value); | |
2983 | else { | |
2984 | asynchronous_close(s->stdin_fd); | |
2985 | s->stdin_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2986 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2987 | } |
2988 | } else if (streq(key, "stdout-fd")) { | |
2989 | int fd; | |
2990 | ||
2991 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2992 | log_unit_debug(u, "Failed to parse stdout-fd value: %s", value); | |
2993 | else { | |
2994 | asynchronous_close(s->stdout_fd); | |
2995 | s->stdout_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2996 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2997 | } |
2998 | } else if (streq(key, "stderr-fd")) { | |
2999 | int fd; | |
3000 | ||
3001 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3002 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
3003 | else { | |
3004 | asynchronous_close(s->stderr_fd); | |
3005 | s->stderr_fd = fdset_remove(fds, fd); | |
1e22b5cd | 3006 | s->exec_context.stdio_as_fds = true; |
a34ceba6 | 3007 | } |
5686391b LP |
3008 | } else if (streq(key, "exec-fd")) { |
3009 | int fd; | |
3010 | ||
3011 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3012 | log_unit_debug(u, "Failed to parse exec-fd value: %s", value); | |
3013 | else { | |
3014 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
3015 | ||
3016 | fd = fdset_remove(fds, fd); | |
3017 | if (service_allocate_exec_fd_event_source(s, fd, &s->exec_fd_event_source) < 0) | |
3018 | safe_close(fd); | |
3019 | } | |
2787d83c | 3020 | } else if (streq(key, "watchdog-override-usec")) { |
d68c645b | 3021 | if (deserialize_usec(value, &s->watchdog_override_usec) < 0) |
2787d83c | 3022 | log_unit_debug(u, "Failed to parse watchdog_override_usec value: %s", value); |
d68c645b | 3023 | else |
2787d83c | 3024 | s->watchdog_override_enable = true; |
d68c645b | 3025 | |
aa8c4bbf LP |
3026 | } else if (streq(key, "watchdog-original-usec")) { |
3027 | if (deserialize_usec(value, &s->watchdog_original_usec) < 0) | |
3028 | log_unit_debug(u, "Failed to parse watchdog_original_usec value: %s", value); | |
3029 | ||
e266c068 MS |
3030 | } else if (STR_IN_SET(key, "main-command", "control-command")) { |
3031 | r = service_deserialize_exec_command(u, key, value); | |
3032 | if (r < 0) | |
3033 | log_unit_debug_errno(u, r, "Failed to parse serialized command \"%s\": %m", value); | |
7a0019d3 LP |
3034 | |
3035 | } else if (streq(key, "n-restarts")) { | |
3036 | r = safe_atou(value, &s->n_restarts); | |
3037 | if (r < 0) | |
3038 | log_unit_debug_errno(u, r, "Failed to parse serialized restart counter '%s': %m", value); | |
3039 | ||
3040 | } else if (streq(key, "flush-n-restarts")) { | |
3041 | r = parse_boolean(value); | |
3042 | if (r < 0) | |
3043 | log_unit_debug_errno(u, r, "Failed to parse serialized flush restart counter setting '%s': %m", value); | |
3044 | else | |
3045 | s->flush_n_restarts = r; | |
c17ec25e | 3046 | } else |
f2341e0a | 3047 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
3048 | |
3049 | return 0; | |
3050 | } | |
3051 | ||
44a6b1b6 | 3052 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
3053 | const UnitActiveState *table; |
3054 | ||
87f0e418 | 3055 | assert(u); |
5cb5a6ff | 3056 | |
e056b01d LP |
3057 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
3058 | ||
3059 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
3060 | } |
3061 | ||
10a94420 LP |
3062 | static const char *service_sub_state_to_string(Unit *u) { |
3063 | assert(u); | |
3064 | ||
3065 | return service_state_to_string(SERVICE(u)->state); | |
3066 | } | |
3067 | ||
f2f725e5 | 3068 | static bool service_may_gc(Unit *u) { |
701cc384 LP |
3069 | Service *s = SERVICE(u); |
3070 | ||
3071 | assert(s); | |
3072 | ||
e98b2fbb | 3073 | /* Never clean up services that still have a process around, even if the service is formally dead. Note that |
f2f725e5 | 3074 | * unit_may_gc() already checked our cgroup for us, we just check our two additional PIDs, too, in case they |
e98b2fbb LP |
3075 | * have moved outside of the cgroup. */ |
3076 | ||
3077 | if (main_pid_good(s) > 0 || | |
6d55002a | 3078 | control_pid_good(s) > 0) |
f2f725e5 | 3079 | return false; |
6d55002a | 3080 | |
f2f725e5 | 3081 | return true; |
6d55002a LP |
3082 | } |
3083 | ||
3a111838 MS |
3084 | static int service_retry_pid_file(Service *s) { |
3085 | int r; | |
3086 | ||
3087 | assert(s->pid_file); | |
3742095b | 3088 | assert(IN_SET(s->state, SERVICE_START, SERVICE_START_POST)); |
3a111838 MS |
3089 | |
3090 | r = service_load_pid_file(s, false); | |
3091 | if (r < 0) | |
3092 | return r; | |
3093 | ||
3094 | service_unwatch_pid_file(s); | |
3095 | ||
f42806df | 3096 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
3097 | return 0; |
3098 | } | |
3099 | ||
3100 | static int service_watch_pid_file(Service *s) { | |
3101 | int r; | |
3102 | ||
f2341e0a | 3103 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 3104 | |
5686391b | 3105 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_inotify_io); |
3a111838 MS |
3106 | if (r < 0) |
3107 | goto fail; | |
3108 | ||
3109 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 3110 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
3111 | service_retry_pid_file(s); |
3112 | ||
3113 | return 0; | |
3114 | fail: | |
f2341e0a | 3115 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
3116 | service_unwatch_pid_file(s); |
3117 | return r; | |
3118 | } | |
3119 | ||
3120 | static int service_demand_pid_file(Service *s) { | |
3121 | PathSpec *ps; | |
3122 | ||
3123 | assert(s->pid_file); | |
3124 | assert(!s->pid_file_pathspec); | |
3125 | ||
3126 | ps = new0(PathSpec, 1); | |
3127 | if (!ps) | |
3128 | return -ENOMEM; | |
3129 | ||
718db961 | 3130 | ps->unit = UNIT(s); |
3a111838 MS |
3131 | ps->path = strdup(s->pid_file); |
3132 | if (!ps->path) { | |
3133 | free(ps); | |
3134 | return -ENOMEM; | |
3135 | } | |
3136 | ||
858d36c1 | 3137 | path_simplify(ps->path, false); |
3a111838 MS |
3138 | |
3139 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
3140 | * keep their PID file open all the time. */ | |
3141 | ps->type = PATH_MODIFIED; | |
3142 | ps->inotify_fd = -1; | |
3143 | ||
3144 | s->pid_file_pathspec = ps; | |
3145 | ||
3146 | return service_watch_pid_file(s); | |
3147 | } | |
3148 | ||
5686391b | 3149 | static int service_dispatch_inotify_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
3150 | PathSpec *p = userdata; |
3151 | Service *s; | |
3152 | ||
3153 | assert(p); | |
3154 | ||
3155 | s = SERVICE(p->unit); | |
3a111838 MS |
3156 | |
3157 | assert(s); | |
3158 | assert(fd >= 0); | |
3742095b | 3159 | assert(IN_SET(s->state, SERVICE_START, SERVICE_START_POST)); |
3a111838 | 3160 | assert(s->pid_file_pathspec); |
57020a3a | 3161 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 3162 | |
f2341e0a | 3163 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 3164 | |
e14c2802 | 3165 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
3166 | goto fail; |
3167 | ||
3168 | if (service_retry_pid_file(s) == 0) | |
718db961 | 3169 | return 0; |
3a111838 MS |
3170 | |
3171 | if (service_watch_pid_file(s) < 0) | |
3172 | goto fail; | |
3173 | ||
718db961 LP |
3174 | return 0; |
3175 | ||
3a111838 MS |
3176 | fail: |
3177 | service_unwatch_pid_file(s); | |
f42806df | 3178 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 3179 | return 0; |
3a111838 MS |
3180 | } |
3181 | ||
5686391b LP |
3182 | static int service_dispatch_exec_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
3183 | Service *s = SERVICE(userdata); | |
3184 | ||
3185 | assert(s); | |
3186 | ||
3187 | log_unit_debug(UNIT(s), "got exec-fd event"); | |
3188 | ||
3189 | /* If Type=exec is set, we'll consider a service started successfully the instant we invoked execve() | |
3190 | * successfully for it. We implement this through a pipe() towards the child, which the kernel automatically | |
3191 | * closes for us due to O_CLOEXEC on execve() in the child, which then triggers EOF on the pipe in the | |
3192 | * parent. We need to be careful however, as there are other reasons that we might cause the child's side of | |
3193 | * the pipe to be closed (for example, a simple exit()). To deal with that we'll ignore EOFs on the pipe unless | |
3194 | * the child signalled us first that it is about to call the execve(). It does so by sending us a simple | |
3195 | * non-zero byte via the pipe. We also provide the child with a way to inform us in case execve() failed: if it | |
3196 | * sends a zero byte we'll ignore POLLHUP on the fd again. */ | |
3197 | ||
3198 | for (;;) { | |
3199 | uint8_t x; | |
3200 | ssize_t n; | |
3201 | ||
3202 | n = read(fd, &x, sizeof(x)); | |
3203 | if (n < 0) { | |
3204 | if (errno == EAGAIN) /* O_NONBLOCK in effect → everything queued has now been processed. */ | |
3205 | return 0; | |
3206 | ||
3207 | return log_unit_error_errno(UNIT(s), errno, "Failed to read from exec_fd: %m"); | |
3208 | } | |
3209 | if (n == 0) { /* EOF → the event we are waiting for */ | |
3210 | ||
3211 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
3212 | ||
3213 | if (s->exec_fd_hot) { /* Did the child tell us to expect EOF now? */ | |
3214 | log_unit_debug(UNIT(s), "Got EOF on exec-fd"); | |
3215 | ||
3216 | s->exec_fd_hot = false; | |
3217 | ||
3218 | /* Nice! This is what we have been waiting for. Transition to next state. */ | |
3219 | if (s->type == SERVICE_EXEC && s->state == SERVICE_START) | |
3220 | service_enter_start_post(s); | |
3221 | } else | |
3222 | log_unit_debug(UNIT(s), "Got EOF on exec-fd while it was disabled, ignoring."); | |
3223 | ||
3224 | return 0; | |
3225 | } | |
3226 | ||
3227 | /* A byte was read → this turns on/off the exec fd logic */ | |
3228 | assert(n == sizeof(x)); | |
3229 | s->exec_fd_hot = x; | |
3230 | } | |
3231 | ||
3232 | return 0; | |
3233 | } | |
3234 | ||
a911bb9a LP |
3235 | static void service_notify_cgroup_empty_event(Unit *u) { |
3236 | Service *s = SERVICE(u); | |
3237 | ||
3238 | assert(u); | |
3239 | ||
a5b5aece | 3240 | log_unit_debug(u, "Control group is empty."); |
a911bb9a LP |
3241 | |
3242 | switch (s->state) { | |
3243 | ||
3244 | /* Waiting for SIGCHLD is usually more interesting, | |
3245 | * because it includes return codes/signals. Which is | |
3246 | * why we ignore the cgroup events for most cases, | |
3247 | * except when we don't know pid which to expect the | |
3248 | * SIGCHLD for. */ | |
3249 | ||
3250 | case SERVICE_START: | |
3c751b1b LP |
3251 | if (s->type == SERVICE_NOTIFY && |
3252 | main_pid_good(s) == 0 && | |
3253 | control_pid_good(s) == 0) { | |
3d474ef7 | 3254 | /* No chance of getting a ready notification anymore */ |
c3fda31d | 3255 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
71e529fc JW |
3256 | break; |
3257 | } | |
3258 | ||
4831981d | 3259 | _fallthrough_; |
71e529fc | 3260 | case SERVICE_START_POST: |
3c751b1b LP |
3261 | if (s->pid_file_pathspec && |
3262 | main_pid_good(s) == 0 && | |
3263 | control_pid_good(s) == 0) { | |
3264 | ||
3d474ef7 | 3265 | /* Give up hoping for the daemon to write its PID file */ |
f2341e0a | 3266 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 3267 | |
a911bb9a LP |
3268 | service_unwatch_pid_file(s); |
3269 | if (s->state == SERVICE_START) | |
c3fda31d | 3270 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a | 3271 | else |
c35755fb | 3272 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a LP |
3273 | } |
3274 | break; | |
3275 | ||
3276 | case SERVICE_RUNNING: | |
3277 | /* service_enter_running() will figure out what to do */ | |
3278 | service_enter_running(s, SERVICE_SUCCESS); | |
3279 | break; | |
3280 | ||
c87700a1 | 3281 | case SERVICE_STOP_WATCHDOG: |
a911bb9a LP |
3282 | case SERVICE_STOP_SIGTERM: |
3283 | case SERVICE_STOP_SIGKILL: | |
3284 | ||
b13ddbbc | 3285 | if (main_pid_good(s) <= 0 && control_pid_good(s) <= 0) |
a911bb9a LP |
3286 | service_enter_stop_post(s, SERVICE_SUCCESS); |
3287 | ||
3288 | break; | |
3289 | ||
3290 | case SERVICE_STOP_POST: | |
3291 | case SERVICE_FINAL_SIGTERM: | |
3292 | case SERVICE_FINAL_SIGKILL: | |
b13ddbbc | 3293 | if (main_pid_good(s) <= 0 && control_pid_good(s) <= 0) |
a911bb9a LP |
3294 | service_enter_dead(s, SERVICE_SUCCESS, true); |
3295 | ||
3296 | break; | |
3297 | ||
3298 | default: | |
3299 | ; | |
3300 | } | |
3301 | } | |
3302 | ||
afcfaa69 LP |
3303 | static void service_notify_cgroup_oom_event(Unit *u) { |
3304 | Service *s = SERVICE(u); | |
3305 | ||
3306 | log_unit_debug(u, "Process of control group was killed by the OOM killer."); | |
3307 | ||
3308 | if (s->oom_policy == OOM_CONTINUE) | |
3309 | return; | |
3310 | ||
3311 | switch (s->state) { | |
3312 | ||
31cd5f63 | 3313 | case SERVICE_CONDITION: |
afcfaa69 LP |
3314 | case SERVICE_START_PRE: |
3315 | case SERVICE_START: | |
3316 | case SERVICE_START_POST: | |
3317 | case SERVICE_STOP: | |
3318 | if (s->oom_policy == OOM_STOP) | |
3319 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_OOM_KILL); | |
3320 | else if (s->oom_policy == OOM_KILL) | |
3321 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3322 | ||
3323 | break; | |
3324 | ||
3325 | case SERVICE_EXITED: | |
3326 | case SERVICE_RUNNING: | |
3327 | if (s->oom_policy == OOM_STOP) | |
3328 | service_enter_stop(s, SERVICE_FAILURE_OOM_KILL); | |
3329 | else if (s->oom_policy == OOM_KILL) | |
3330 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3331 | ||
3332 | break; | |
3333 | ||
3334 | case SERVICE_STOP_WATCHDOG: | |
3335 | case SERVICE_STOP_SIGTERM: | |
3336 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3337 | break; | |
3338 | ||
3339 | case SERVICE_STOP_SIGKILL: | |
3340 | case SERVICE_FINAL_SIGKILL: | |
3341 | if (s->result == SERVICE_SUCCESS) | |
3342 | s->result = SERVICE_FAILURE_OOM_KILL; | |
3343 | break; | |
3344 | ||
3345 | case SERVICE_STOP_POST: | |
3346 | case SERVICE_FINAL_SIGTERM: | |
3347 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3348 | break; | |
3349 | ||
3350 | default: | |
3351 | ; | |
3352 | } | |
3353 | } | |
3354 | ||
87f0e418 | 3355 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
5cdabc8d | 3356 | bool notify_dbus = true; |
87f0e418 | 3357 | Service *s = SERVICE(u); |
f42806df | 3358 | ServiceResult f; |
e5123725 | 3359 | ExitClean clean_mode; |
5cb5a6ff LP |
3360 | |
3361 | assert(s); | |
034c6ed7 LP |
3362 | assert(pid >= 0); |
3363 | ||
e5123725 AZ |
3364 | /* Oneshot services and non-SERVICE_EXEC_START commands should not be |
3365 | * considered daemons as they are typically not long running. */ | |
3366 | if (s->type == SERVICE_ONESHOT || (s->control_pid == pid && s->control_command_id != SERVICE_EXEC_START)) | |
3367 | clean_mode = EXIT_CLEAN_COMMAND; | |
3368 | else | |
3369 | clean_mode = EXIT_CLEAN_DAEMON; | |
3370 | ||
3371 | if (is_clean_exit(code, status, clean_mode, &s->success_status)) | |
f42806df LP |
3372 | f = SERVICE_SUCCESS; |
3373 | else if (code == CLD_EXITED) | |
3374 | f = SERVICE_FAILURE_EXIT_CODE; | |
3375 | else if (code == CLD_KILLED) | |
3376 | f = SERVICE_FAILURE_SIGNAL; | |
3377 | else if (code == CLD_DUMPED) | |
3378 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 3379 | else |
cfc4eb4c | 3380 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
3381 | |
3382 | if (s->main_pid == pid) { | |
db01f8b3 MS |
3383 | /* Forking services may occasionally move to a new PID. |
3384 | * As long as they update the PID file before exiting the old | |
3385 | * PID, they're fine. */ | |
db256aab | 3386 | if (service_load_pid_file(s, false) > 0) |
db01f8b3 | 3387 | return; |
034c6ed7 | 3388 | |
034c6ed7 | 3389 | s->main_pid = 0; |
6ea832a2 | 3390 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 3391 | |
867b3b7d | 3392 | if (s->main_command) { |
fbeefb45 LP |
3393 | /* If this is not a forking service than the |
3394 | * main process got started and hence we copy | |
3395 | * the exit status so that it is recorded both | |
3396 | * as main and as control process exit | |
3397 | * status */ | |
3398 | ||
867b3b7d | 3399 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 3400 | |
3ed0cd26 | 3401 | if (s->main_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3402 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
3403 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
3404 | ||
3405 | /* If this is a forked process, then we should | |
3406 | * ignore the return value if this was | |
3407 | * configured for the starter process */ | |
3408 | ||
3ed0cd26 | 3409 | if (s->exec_command[SERVICE_EXEC_START]->flags & EXEC_COMMAND_IGNORE_FAILURE) |
fbeefb45 | 3410 | f = SERVICE_SUCCESS; |
034c6ed7 LP |
3411 | } |
3412 | ||
91bbd9b7 | 3413 | unit_log_process_exit( |
5cc2cd1c | 3414 | u, |
91bbd9b7 LP |
3415 | "Main process", |
3416 | service_exec_command_to_string(SERVICE_EXEC_START), | |
5cc2cd1c | 3417 | f == SERVICE_SUCCESS, |
91bbd9b7 | 3418 | code, status); |
f42806df | 3419 | |
a0fef983 | 3420 | if (s->result == SERVICE_SUCCESS) |
f42806df | 3421 | s->result = f; |
034c6ed7 | 3422 | |
867b3b7d LP |
3423 | if (s->main_command && |
3424 | s->main_command->command_next && | |
b58aeb70 | 3425 | s->type == SERVICE_ONESHOT && |
f42806df | 3426 | f == SERVICE_SUCCESS) { |
034c6ed7 | 3427 | |
34e9ba66 LP |
3428 | /* There is another command to * |
3429 | * execute, so let's do that. */ | |
034c6ed7 | 3430 | |
f2341e0a | 3431 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 3432 | service_run_next_main(s); |
034c6ed7 | 3433 | |
34e9ba66 LP |
3434 | } else { |
3435 | ||
3436 | /* The service exited, so the service is officially | |
3437 | * gone. */ | |
867b3b7d | 3438 | s->main_command = NULL; |
34e9ba66 LP |
3439 | |
3440 | switch (s->state) { | |
3441 | ||
3442 | case SERVICE_START_POST: | |
3443 | case SERVICE_RELOAD: | |
3444 | case SERVICE_STOP: | |
3445 | /* Need to wait until the operation is | |
3446 | * done */ | |
c4653a4d | 3447 | break; |
7d55e835 | 3448 | |
34e9ba66 LP |
3449 | case SERVICE_START: |
3450 | if (s->type == SERVICE_ONESHOT) { | |
3451 | /* This was our main goal, so let's go on */ | |
f42806df | 3452 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
3453 | service_enter_start_post(s); |
3454 | else | |
c3fda31d | 3455 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
34e9ba66 | 3456 | break; |
3d474ef7 JW |
3457 | } else if (s->type == SERVICE_NOTIFY) { |
3458 | /* Only enter running through a notification, so that the | |
3459 | * SERVICE_START state signifies that no ready notification | |
3460 | * has been received */ | |
3461 | if (f != SERVICE_SUCCESS) | |
c3fda31d | 3462 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
df66b93f JW |
3463 | else if (!s->remain_after_exit || s->notify_access == NOTIFY_MAIN) |
3464 | /* The service has never been and will never be active */ | |
c3fda31d | 3465 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3d474ef7 | 3466 | break; |
34e9ba66 | 3467 | } |
034c6ed7 | 3468 | |
4831981d | 3469 | _fallthrough_; |
34e9ba66 | 3470 | case SERVICE_RUNNING: |
f42806df | 3471 | service_enter_running(s, f); |
34e9ba66 | 3472 | break; |
034c6ed7 | 3473 | |
c87700a1 | 3474 | case SERVICE_STOP_WATCHDOG: |
34e9ba66 LP |
3475 | case SERVICE_STOP_SIGTERM: |
3476 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 3477 | |
b13ddbbc | 3478 | if (control_pid_good(s) <= 0) |
f42806df | 3479 | service_enter_stop_post(s, f); |
5cb5a6ff | 3480 | |
34e9ba66 LP |
3481 | /* If there is still a control process, wait for that first */ |
3482 | break; | |
3483 | ||
bf108e55 LP |
3484 | case SERVICE_STOP_POST: |
3485 | case SERVICE_FINAL_SIGTERM: | |
3486 | case SERVICE_FINAL_SIGKILL: | |
3487 | ||
b13ddbbc | 3488 | if (control_pid_good(s) <= 0) |
bf108e55 LP |
3489 | service_enter_dead(s, f, true); |
3490 | break; | |
3491 | ||
34e9ba66 LP |
3492 | default: |
3493 | assert_not_reached("Uh, main process died at wrong time."); | |
3494 | } | |
034c6ed7 | 3495 | } |
5cb5a6ff | 3496 | |
034c6ed7 | 3497 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
3498 | s->control_pid = 0; |
3499 | ||
31cd5f63 AZ |
3500 | /* ExecCondition= calls that exit with (0, 254] should invoke skip-like behavior instead of failing */ |
3501 | if (f == SERVICE_FAILURE_EXIT_CODE && s->state == SERVICE_CONDITION && status < 255) | |
3502 | f = SERVICE_SKIP_CONDITION; | |
3503 | ||
b708e7ce | 3504 | if (s->control_command) { |
8bb2d17d | 3505 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 3506 | |
3ed0cd26 | 3507 | if (s->control_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3508 | f = SERVICE_SUCCESS; |
b708e7ce LP |
3509 | } |
3510 | ||
91bbd9b7 | 3511 | unit_log_process_exit( |
5cc2cd1c | 3512 | u, |
91bbd9b7 LP |
3513 | "Control process", |
3514 | service_exec_command_to_string(s->control_command_id), | |
5cc2cd1c | 3515 | f == SERVICE_SUCCESS, |
91bbd9b7 | 3516 | code, status); |
f42806df | 3517 | |
d611cfa7 | 3518 | if (s->state != SERVICE_RELOAD && s->result == SERVICE_SUCCESS) |
f42806df | 3519 | s->result = f; |
034c6ed7 | 3520 | |
34e9ba66 LP |
3521 | if (s->control_command && |
3522 | s->control_command->command_next && | |
f42806df | 3523 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3524 | |
3525 | /* There is another command to * | |
3526 | * execute, so let's do that. */ | |
3527 | ||
f2341e0a | 3528 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 3529 | service_run_next_control(s); |
034c6ed7 | 3530 | |
80876c20 | 3531 | } else { |
034c6ed7 LP |
3532 | /* No further commands for this step, so let's |
3533 | * figure out what to do next */ | |
3534 | ||
a16e1123 LP |
3535 | s->control_command = NULL; |
3536 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3537 | ||
f2341e0a | 3538 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 3539 | |
034c6ed7 LP |
3540 | switch (s->state) { |
3541 | ||
31cd5f63 AZ |
3542 | case SERVICE_CONDITION: |
3543 | if (f == SERVICE_SUCCESS) | |
3544 | service_enter_start_pre(s); | |
3545 | else | |
3546 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
3547 | break; | |
3548 | ||
034c6ed7 | 3549 | case SERVICE_START_PRE: |
f42806df | 3550 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3551 | service_enter_start(s); |
3552 | else | |
c3fda31d | 3553 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3554 | break; |
3555 | ||
3556 | case SERVICE_START: | |
bfba3256 LP |
3557 | if (s->type != SERVICE_FORKING) |
3558 | /* Maybe spurious event due to a reload that changed the type? */ | |
3559 | break; | |
034c6ed7 | 3560 | |
f42806df | 3561 | if (f != SERVICE_SUCCESS) { |
c3fda31d | 3562 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3a111838 MS |
3563 | break; |
3564 | } | |
034c6ed7 | 3565 | |
3a111838 | 3566 | if (s->pid_file) { |
f42806df LP |
3567 | bool has_start_post; |
3568 | int r; | |
3569 | ||
3a111838 MS |
3570 | /* Let's try to load the pid file here if we can. |
3571 | * The PID file might actually be created by a START_POST | |
3572 | * script. In that case don't worry if the loading fails. */ | |
f42806df | 3573 | |
5d904a6a | 3574 | has_start_post = s->exec_command[SERVICE_EXEC_START_POST]; |
f42806df | 3575 | r = service_load_pid_file(s, !has_start_post); |
3a111838 MS |
3576 | if (!has_start_post && r < 0) { |
3577 | r = service_demand_pid_file(s); | |
b13ddbbc | 3578 | if (r < 0 || cgroup_good(s) == 0) |
c3fda31d | 3579 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3a111838 MS |
3580 | break; |
3581 | } | |
034c6ed7 | 3582 | } else |
783e05d6 | 3583 | service_search_main_pid(s); |
034c6ed7 | 3584 | |
3a111838 | 3585 | service_enter_start_post(s); |
034c6ed7 LP |
3586 | break; |
3587 | ||
3588 | case SERVICE_START_POST: | |
f42806df | 3589 | if (f != SERVICE_SUCCESS) { |
ce359e98 | 3590 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
2096e009 | 3591 | break; |
034c6ed7 LP |
3592 | } |
3593 | ||
2096e009 | 3594 | if (s->pid_file) { |
f42806df LP |
3595 | int r; |
3596 | ||
3597 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3598 | if (r < 0) { |
3599 | r = service_demand_pid_file(s); | |
b13ddbbc | 3600 | if (r < 0 || cgroup_good(s) == 0) |
c35755fb | 3601 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
2096e009 MS |
3602 | break; |
3603 | } | |
3604 | } else | |
783e05d6 | 3605 | service_search_main_pid(s); |
2096e009 | 3606 | |
f42806df | 3607 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3608 | break; |
034c6ed7 LP |
3609 | |
3610 | case SERVICE_RELOAD: | |
7236ce6e ZJS |
3611 | if (f == SERVICE_SUCCESS) |
3612 | if (service_load_pid_file(s, true) < 0) | |
3613 | service_search_main_pid(s); | |
3185a36b | 3614 | |
f42806df LP |
3615 | s->reload_result = f; |
3616 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3617 | break; |
3618 | ||
3619 | case SERVICE_STOP: | |
f42806df | 3620 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3621 | break; |
3622 | ||
c87700a1 | 3623 | case SERVICE_STOP_WATCHDOG: |
034c6ed7 LP |
3624 | case SERVICE_STOP_SIGTERM: |
3625 | case SERVICE_STOP_SIGKILL: | |
3626 | if (main_pid_good(s) <= 0) | |
f42806df | 3627 | service_enter_stop_post(s, f); |
034c6ed7 | 3628 | |
846a07b5 | 3629 | /* If there is still a service process around, wait until |
034c6ed7 LP |
3630 | * that one quit, too */ |
3631 | break; | |
3632 | ||
3633 | case SERVICE_STOP_POST: | |
3634 | case SERVICE_FINAL_SIGTERM: | |
3635 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
3636 | if (main_pid_good(s) <= 0) |
3637 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
3638 | break; |
3639 | ||
4c2f5842 LP |
3640 | case SERVICE_CLEANING: |
3641 | ||
3642 | if (s->clean_result == SERVICE_SUCCESS) | |
3643 | s->clean_result = f; | |
3644 | ||
3645 | service_enter_dead(s, SERVICE_SUCCESS, false); | |
3646 | break; | |
3647 | ||
034c6ed7 LP |
3648 | default: |
3649 | assert_not_reached("Uh, control process died at wrong time."); | |
3650 | } | |
3651 | } | |
5cdabc8d LP |
3652 | } else /* Neither control nor main PID? If so, don't notify about anything */ |
3653 | notify_dbus = false; | |
c4e2ceae LP |
3654 | |
3655 | /* Notify clients about changed exit status */ | |
5cdabc8d LP |
3656 | if (notify_dbus) |
3657 | unit_add_to_dbus_queue(u); | |
a911bb9a | 3658 | |
846a07b5 FB |
3659 | /* We watch the main/control process otherwise we can't retrieve the unit they |
3660 | * belong to with cgroupv1. But if they are not our direct child, we won't get a | |
3661 | * SIGCHLD for them. Therefore we need to look for others to watch so we can | |
3662 | * detect when the cgroup becomes empty. Note that the control process is always | |
3663 | * our child so it's pointless to watch all other processes. */ | |
3664 | if (!control_pid_good(s)) | |
3665 | if (!s->main_pid_known || s->main_pid_alien) | |
3666 | (void) unit_enqueue_rewatch_pids(u); | |
034c6ed7 LP |
3667 | } |
3668 | ||
718db961 LP |
3669 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
3670 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
3671 | |
3672 | assert(s); | |
718db961 | 3673 | assert(source == s->timer_event_source); |
034c6ed7 LP |
3674 | |
3675 | switch (s->state) { | |
3676 | ||
31cd5f63 | 3677 | case SERVICE_CONDITION: |
034c6ed7 LP |
3678 | case SERVICE_START_PRE: |
3679 | case SERVICE_START: | |
31cd5f63 | 3680 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", service_state_to_string(s->state)); |
c3fda31d | 3681 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
3682 | break; |
3683 | ||
034c6ed7 | 3684 | case SERVICE_START_POST: |
f2341e0a | 3685 | log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping."); |
ce359e98 | 3686 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3687 | break; |
3688 | ||
36c16a7c LP |
3689 | case SERVICE_RUNNING: |
3690 | log_unit_warning(UNIT(s), "Service reached runtime time limit. Stopping."); | |
3691 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); | |
3692 | break; | |
3693 | ||
e2f3b44c | 3694 | case SERVICE_RELOAD: |
089b64d5 | 3695 | log_unit_warning(UNIT(s), "Reload operation timed out. Killing reload process."); |
e9a4f676 | 3696 | service_kill_control_process(s); |
f42806df LP |
3697 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3698 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3699 | break; |
3700 | ||
034c6ed7 | 3701 | case SERVICE_STOP: |
f2341e0a | 3702 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
f42806df | 3703 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3704 | break; |
3705 | ||
c87700a1 AZ |
3706 | case SERVICE_STOP_WATCHDOG: |
3707 | log_unit_warning(UNIT(s), "State 'stop-watchdog' timed out. Terminating."); | |
2ab2ab7b | 3708 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
db2cb23b UTL |
3709 | break; |
3710 | ||
034c6ed7 | 3711 | case SERVICE_STOP_SIGTERM: |
4819ff03 | 3712 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3713 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 3714 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3715 | } else { |
f2341e0a | 3716 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 3717 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3718 | } |
3719 | ||
034c6ed7 LP |
3720 | break; |
3721 | ||
3722 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3723 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3724 | * Must be something we cannot kill, so let's just be |
3725 | * weirded out and continue */ | |
3726 | ||
f2341e0a | 3727 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 3728 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3729 | break; |
3730 | ||
3731 | case SERVICE_STOP_POST: | |
f2341e0a | 3732 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); |
f42806df | 3733 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3734 | break; |
3735 | ||
3736 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 3737 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3738 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing."); |
f42806df | 3739 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3740 | } else { |
f2341e0a | 3741 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); |
f42806df | 3742 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3743 | } |
3744 | ||
034c6ed7 LP |
3745 | break; |
3746 | ||
3747 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 3748 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 3749 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3750 | break; |
3751 | ||
3752 | case SERVICE_AUTO_RESTART: | |
5ce6e7f5 ZJS |
3753 | if (s->restart_usec > 0) { |
3754 | char buf_restart[FORMAT_TIMESPAN_MAX]; | |
3755 | log_unit_info(UNIT(s), | |
3756 | "Service RestartSec=%s expired, scheduling restart.", | |
3757 | format_timespan(buf_restart, sizeof buf_restart, s->restart_usec, USEC_PER_SEC)); | |
3758 | } else | |
3759 | log_unit_info(UNIT(s), | |
3760 | "Service has no hold-off time (RestartSec=0), scheduling restart."); | |
3761 | ||
034c6ed7 LP |
3762 | service_enter_restart(s); |
3763 | break; | |
3764 | ||
4c2f5842 LP |
3765 | case SERVICE_CLEANING: |
3766 | log_unit_warning(UNIT(s), "Cleaning timed out. killing."); | |
3767 | ||
3768 | if (s->clean_result == SERVICE_SUCCESS) | |
3769 | s->clean_result = SERVICE_FAILURE_TIMEOUT; | |
3770 | ||
3771 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, 0); | |
3772 | break; | |
3773 | ||
034c6ed7 LP |
3774 | default: |
3775 | assert_not_reached("Timeout at wrong time."); | |
3776 | } | |
718db961 LP |
3777 | |
3778 | return 0; | |
3779 | } | |
3780 | ||
3781 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
3782 | Service *s = SERVICE(userdata); | |
a7850c7d | 3783 | char t[FORMAT_TIMESPAN_MAX]; |
2787d83c | 3784 | usec_t watchdog_usec; |
718db961 LP |
3785 | |
3786 | assert(s); | |
3787 | assert(source == s->watchdog_event_source); | |
3788 | ||
2787d83c M |
3789 | watchdog_usec = service_get_watchdog_usec(s); |
3790 | ||
2a12e32e JK |
3791 | if (UNIT(s)->manager->service_watchdogs) { |
3792 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", | |
3793 | format_timespan(t, sizeof(t), watchdog_usec, 1)); | |
8bb2d17d | 3794 | |
c87700a1 | 3795 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_WATCHDOG); |
2a12e32e JK |
3796 | } else |
3797 | log_unit_warning(UNIT(s), "Watchdog disabled! Ignoring watchdog timeout (limit %s)!", | |
3798 | format_timespan(t, sizeof(t), watchdog_usec, 1)); | |
842129f5 | 3799 | |
718db961 | 3800 | return 0; |
5cb5a6ff LP |
3801 | } |
3802 | ||
e3285237 LP |
3803 | static bool service_notify_message_authorized(Service *s, pid_t pid, char **tags, FDSet *fds) { |
3804 | assert(s); | |
8c47c732 | 3805 | |
c952c6ec | 3806 | if (s->notify_access == NOTIFY_NONE) { |
e3285237 LP |
3807 | log_unit_warning(UNIT(s), "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
3808 | return false; | |
3809 | } | |
3810 | ||
3811 | if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { | |
336c6e46 | 3812 | if (s->main_pid != 0) |
e3285237 | 3813 | 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 | 3814 | else |
e3285237 LP |
3815 | 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); |
3816 | ||
3817 | return false; | |
3818 | } | |
3819 | ||
3820 | if (s->notify_access == NOTIFY_EXEC && pid != s->main_pid && pid != s->control_pid) { | |
6375bd20 | 3821 | if (s->main_pid != 0 && s->control_pid != 0) |
e3285237 | 3822 | 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 |
3823 | pid, s->main_pid, s->control_pid); |
3824 | else if (s->main_pid != 0) | |
e3285237 | 3825 | 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 | 3826 | else if (s->control_pid != 0) |
e3285237 | 3827 | 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 | 3828 | else |
e3285237 LP |
3829 | 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); |
3830 | ||
3831 | return false; | |
9711848f LP |
3832 | } |
3833 | ||
e3285237 LP |
3834 | return true; |
3835 | } | |
3836 | ||
99b43caf JK |
3837 | static void service_force_watchdog(Service *s) { |
3838 | if (!UNIT(s)->manager->service_watchdogs) | |
3839 | return; | |
3840 | ||
3841 | log_unit_error(UNIT(s), "Watchdog request (last status: %s)!", | |
3842 | s->status_text ? s->status_text : "<unset>"); | |
3843 | ||
3844 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_WATCHDOG); | |
3845 | } | |
3846 | ||
db256aab LP |
3847 | static void service_notify_message( |
3848 | Unit *u, | |
3849 | const struct ucred *ucred, | |
3850 | char **tags, | |
3851 | FDSet *fds) { | |
3852 | ||
e3285237 LP |
3853 | Service *s = SERVICE(u); |
3854 | bool notify_dbus = false; | |
3855 | const char *e; | |
cc2b7b11 | 3856 | char **i; |
db256aab | 3857 | int r; |
e3285237 LP |
3858 | |
3859 | assert(u); | |
db256aab | 3860 | assert(ucred); |
e3285237 | 3861 | |
db256aab | 3862 | if (!service_notify_message_authorized(SERVICE(u), ucred->pid, tags, fds)) |
e3285237 LP |
3863 | return; |
3864 | ||
f1d34068 | 3865 | if (DEBUG_LOGGING) { |
9711848f LP |
3866 | _cleanup_free_ char *cc = NULL; |
3867 | ||
3868 | cc = strv_join(tags, ", "); | |
db256aab | 3869 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", ucred->pid, isempty(cc) ? "n/a" : cc); |
9711848f | 3870 | } |
c952c6ec | 3871 | |
8c47c732 | 3872 | /* Interpret MAINPID= */ |
28849dba | 3873 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 3874 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
db256aab LP |
3875 | pid_t new_main_pid; |
3876 | ||
3877 | if (parse_pid(e, &new_main_pid) < 0) | |
3878 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message, ignoring: %s", e); | |
3879 | else if (!s->main_pid_known || new_main_pid != s->main_pid) { | |
3880 | ||
3881 | r = service_is_suitable_main_pid(s, new_main_pid, LOG_WARNING); | |
3882 | if (r == 0) { | |
5238e957 | 3883 | /* The new main PID is a bit suspicious, which is OK if the sender is privileged. */ |
db256aab LP |
3884 | |
3885 | if (ucred->uid == 0) { | |
3886 | 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); | |
3887 | r = 1; | |
3888 | } else | |
3889 | log_unit_debug(u, "New main PID "PID_FMT" does not belong to service, refusing.", new_main_pid); | |
3890 | } | |
3891 | if (r > 0) { | |
3892 | service_set_main_pid(s, new_main_pid); | |
cdc2af3e | 3893 | |
f75f613d | 3894 | r = unit_watch_pid(UNIT(s), new_main_pid, false); |
cdc2af3e LP |
3895 | if (r < 0) |
3896 | log_unit_warning_errno(UNIT(s), r, "Failed to watch new main PID "PID_FMT" for service: %m", new_main_pid); | |
3897 | ||
db256aab LP |
3898 | notify_dbus = true; |
3899 | } | |
8c47c732 LP |
3900 | } |
3901 | } | |
3902 | ||
cc2b7b11 LP |
3903 | /* Interpret READY=/STOPPING=/RELOADING=. Last one wins. */ |
3904 | STRV_FOREACH_BACKWARDS(i, tags) { | |
308d72dc | 3905 | |
cc2b7b11 LP |
3906 | if (streq(*i, "READY=1")) { |
3907 | s->notify_state = NOTIFY_READY; | |
308d72dc | 3908 | |
cc2b7b11 LP |
3909 | /* Type=notify services inform us about completed |
3910 | * initialization with READY=1 */ | |
3911 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
3912 | service_enter_start_post(s); | |
308d72dc | 3913 | |
cc2b7b11 LP |
3914 | /* Sending READY=1 while we are reloading informs us |
3915 | * that the reloading is complete */ | |
3916 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
3917 | service_enter_running(s, SERVICE_SUCCESS); | |
308d72dc | 3918 | |
cc2b7b11 LP |
3919 | notify_dbus = true; |
3920 | break; | |
308d72dc | 3921 | |
cc2b7b11 LP |
3922 | } else if (streq(*i, "RELOADING=1")) { |
3923 | s->notify_state = NOTIFY_RELOADING; | |
308d72dc | 3924 | |
cc2b7b11 LP |
3925 | if (s->state == SERVICE_RUNNING) |
3926 | service_enter_reload_by_notify(s); | |
308d72dc | 3927 | |
cc2b7b11 LP |
3928 | notify_dbus = true; |
3929 | break; | |
308d72dc | 3930 | |
cc2b7b11 LP |
3931 | } else if (streq(*i, "STOPPING=1")) { |
3932 | s->notify_state = NOTIFY_STOPPING; | |
308d72dc | 3933 | |
cc2b7b11 LP |
3934 | if (s->state == SERVICE_RUNNING) |
3935 | service_enter_stop_by_notify(s); | |
308d72dc | 3936 | |
cc2b7b11 LP |
3937 | notify_dbus = true; |
3938 | break; | |
3939 | } | |
8c47c732 LP |
3940 | } |
3941 | ||
3942 | /* Interpret STATUS= */ | |
28849dba | 3943 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 3944 | if (e) { |
28849dba | 3945 | _cleanup_free_ char *t = NULL; |
8c47c732 | 3946 | |
28849dba | 3947 | if (!isempty(e)) { |
3eac1bca LP |
3948 | /* Note that this size limit check is mostly paranoia: since the datagram size we are willing |
3949 | * to process is already limited to NOTIFY_BUFFER_MAX, this limit here should never be hit. */ | |
3950 | if (strlen(e) > STATUS_TEXT_MAX) | |
3951 | log_unit_warning(u, "Status message overly long (%zu > %u), ignoring.", strlen(e), STATUS_TEXT_MAX); | |
3952 | else if (!utf8_is_valid(e)) | |
3953 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean, ignoring."); | |
28849dba | 3954 | else { |
28849dba LP |
3955 | t = strdup(e); |
3956 | if (!t) | |
3957 | log_oom(); | |
3a2776bc | 3958 | } |
28849dba | 3959 | } |
8c47c732 | 3960 | |
30b5275a | 3961 | if (!streq_ptr(s->status_text, t)) { |
3b319885 | 3962 | free_and_replace(s->status_text, t); |
30b5275a | 3963 | notify_dbus = true; |
28849dba | 3964 | } |
8c47c732 | 3965 | } |
842129f5 | 3966 | |
4774e357 | 3967 | /* Interpret ERRNO= */ |
28849dba | 3968 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
3969 | if (e) { |
3970 | int status_errno; | |
3971 | ||
2fa40742 LP |
3972 | status_errno = parse_errno(e); |
3973 | if (status_errno < 0) | |
3974 | log_unit_warning_errno(u, status_errno, | |
5e1ee764 | 3975 | "Failed to parse ERRNO= field value '%s' in notification message: %m", e); |
2fa40742 LP |
3976 | else if (s->status_errno != status_errno) { |
3977 | s->status_errno = status_errno; | |
3978 | notify_dbus = true; | |
4774e357 MAA |
3979 | } |
3980 | } | |
3981 | ||
a327431b DB |
3982 | /* Interpret EXTEND_TIMEOUT= */ |
3983 | e = strv_find_startswith(tags, "EXTEND_TIMEOUT_USEC="); | |
3984 | if (e) { | |
3985 | usec_t extend_timeout_usec; | |
3986 | if (safe_atou64(e, &extend_timeout_usec) < 0) | |
3987 | log_unit_warning(u, "Failed to parse EXTEND_TIMEOUT_USEC=%s", e); | |
3988 | else | |
3989 | service_extend_timeout(s, extend_timeout_usec); | |
3990 | } | |
3991 | ||
6f285378 | 3992 | /* Interpret WATCHDOG= */ |
99b43caf JK |
3993 | e = strv_find_startswith(tags, "WATCHDOG="); |
3994 | if (e) { | |
3995 | if (streq(e, "1")) | |
3996 | service_reset_watchdog(s); | |
3997 | else if (streq(e, "trigger")) | |
3998 | service_force_watchdog(s); | |
3999 | else | |
4000 | log_unit_warning(u, "Passed WATCHDOG= field is invalid, ignoring."); | |
4001 | } | |
c4e2ceae | 4002 | |
c45d11cb LP |
4003 | e = strv_find_startswith(tags, "WATCHDOG_USEC="); |
4004 | if (e) { | |
4005 | usec_t watchdog_override_usec; | |
4006 | if (safe_atou64(e, &watchdog_override_usec) < 0) | |
4007 | log_unit_warning(u, "Failed to parse WATCHDOG_USEC=%s", e); | |
4008 | else | |
95d0d8ed | 4009 | service_override_watchdog_timeout(s, watchdog_override_usec); |
c45d11cb LP |
4010 | } |
4011 | ||
e78ee06d LP |
4012 | /* Process FD store messages. Either FDSTOREREMOVE=1 for removal, or FDSTORE=1 for addition. In both cases, |
4013 | * process FDNAME= for picking the file descriptor name to use. Note that FDNAME= is required when removing | |
4014 | * fds, but optional when pushing in new fds, for compatibility reasons. */ | |
4015 | if (strv_find(tags, "FDSTOREREMOVE=1")) { | |
4016 | const char *name; | |
4017 | ||
4018 | name = strv_find_startswith(tags, "FDNAME="); | |
4019 | if (!name || !fdname_is_valid(name)) | |
4020 | log_unit_warning(u, "FDSTOREREMOVE=1 requested, but no valid file descriptor name passed, ignoring."); | |
4021 | else | |
4022 | service_remove_fd_store(s, name); | |
4023 | ||
4024 | } else if (strv_find(tags, "FDSTORE=1")) { | |
8dd4c05b LP |
4025 | const char *name; |
4026 | ||
4027 | name = strv_find_startswith(tags, "FDNAME="); | |
4028 | if (name && !fdname_is_valid(name)) { | |
4029 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
4030 | name = NULL; | |
4031 | } | |
4032 | ||
e78ee06d | 4033 | (void) service_add_fd_store_set(s, fds, name); |
8dd4c05b | 4034 | } |
a354329f | 4035 | |
c4e2ceae | 4036 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
4037 | if (notify_dbus) |
4038 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
4039 | } |
4040 | ||
7a7821c8 | 4041 | static int service_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 4042 | Service *s = SERVICE(u); |
7a7821c8 | 4043 | uint64_t t; |
68db7a3b ZJS |
4044 | int r; |
4045 | ||
4046 | if (!s->timer_event_source) | |
4047 | return 0; | |
4048 | ||
7a7821c8 | 4049 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
4050 | if (r < 0) |
4051 | return r; | |
7a7821c8 LP |
4052 | if (t == USEC_INFINITY) |
4053 | return 0; | |
68db7a3b | 4054 | |
7a7821c8 | 4055 | *timeout = t; |
68db7a3b ZJS |
4056 | return 1; |
4057 | } | |
4058 | ||
05e343b7 LP |
4059 | static void service_bus_name_owner_change( |
4060 | Unit *u, | |
05e343b7 LP |
4061 | const char *old_owner, |
4062 | const char *new_owner) { | |
4063 | ||
4064 | Service *s = SERVICE(u); | |
718db961 | 4065 | int r; |
05e343b7 LP |
4066 | |
4067 | assert(s); | |
05e343b7 | 4068 | |
05e343b7 LP |
4069 | assert(old_owner || new_owner); |
4070 | ||
4071 | if (old_owner && new_owner) | |
a5a8776a | 4072 | log_unit_debug(u, "D-Bus name %s changed owner from %s to %s", s->bus_name, old_owner, new_owner); |
05e343b7 | 4073 | else if (old_owner) |
a5a8776a | 4074 | log_unit_debug(u, "D-Bus name %s no longer registered by %s", s->bus_name, old_owner); |
05e343b7 | 4075 | else |
a5a8776a | 4076 | log_unit_debug(u, "D-Bus name %s now registered by %s", s->bus_name, new_owner); |
05e343b7 LP |
4077 | |
4078 | s->bus_name_good = !!new_owner; | |
4079 | ||
d8ccf5fd DM |
4080 | /* Track the current owner, so we can reconstruct changes after a daemon reload */ |
4081 | r = free_and_strdup(&s->bus_name_owner, new_owner); | |
4082 | if (r < 0) { | |
4083 | log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner); | |
4084 | return; | |
4085 | } | |
4086 | ||
05e343b7 LP |
4087 | if (s->type == SERVICE_DBUS) { |
4088 | ||
4089 | /* service_enter_running() will figure out what to | |
4090 | * do */ | |
4091 | if (s->state == SERVICE_RUNNING) | |
f42806df | 4092 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
4093 | else if (s->state == SERVICE_START && new_owner) |
4094 | service_enter_start_post(s); | |
4095 | ||
4096 | } else if (new_owner && | |
4097 | s->main_pid <= 0 && | |
a6951a50 LP |
4098 | IN_SET(s->state, |
4099 | SERVICE_START, | |
4100 | SERVICE_START_POST, | |
4101 | SERVICE_RUNNING, | |
4102 | SERVICE_RELOAD)) { | |
05e343b7 | 4103 | |
4afd3348 | 4104 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
718db961 | 4105 | pid_t pid; |
05e343b7 | 4106 | |
718db961 | 4107 | /* Try to acquire PID from bus service */ |
05e343b7 | 4108 | |
a5a8776a | 4109 | r = sd_bus_get_name_creds(u->manager->api_bus, s->bus_name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
4110 | if (r >= 0) |
4111 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 | 4112 | if (r >= 0) { |
a5a8776a | 4113 | log_unit_debug(u, "D-Bus name %s is now owned by process " PID_FMT, s->bus_name, pid); |
05e343b7 | 4114 | |
718db961 | 4115 | service_set_main_pid(s, pid); |
f75f613d | 4116 | unit_watch_pid(UNIT(s), pid, false); |
718db961 | 4117 | } |
7400b9d2 | 4118 | } |
05e343b7 LP |
4119 | } |
4120 | ||
16115b0a | 4121 | int service_set_socket_fd(Service *s, int fd, Socket *sock, bool selinux_context_net) { |
79a98c60 LP |
4122 | _cleanup_free_ char *peer = NULL; |
4123 | int r; | |
57020a3a | 4124 | |
4f2d528d LP |
4125 | assert(s); |
4126 | assert(fd >= 0); | |
4127 | ||
7f2fbbff LP |
4128 | /* This is called by the socket code when instantiating a new service for a stream socket and the socket needs |
4129 | * to be configured. We take ownership of the passed fd on success. */ | |
4f2d528d | 4130 | |
1124fe6f | 4131 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
4132 | return -EINVAL; |
4133 | ||
4134 | if (s->socket_fd >= 0) | |
4135 | return -EBUSY; | |
4136 | ||
4137 | if (s->state != SERVICE_DEAD) | |
4138 | return -EAGAIN; | |
4139 | ||
366b7db4 | 4140 | if (getpeername_pretty(fd, true, &peer) >= 0) { |
79a98c60 LP |
4141 | |
4142 | if (UNIT(s)->description) { | |
4143 | _cleanup_free_ char *a; | |
4144 | ||
605405c6 | 4145 | a = strjoin(UNIT(s)->description, " (", peer, ")"); |
79a98c60 LP |
4146 | if (!a) |
4147 | return -ENOMEM; | |
4148 | ||
4149 | r = unit_set_description(UNIT(s), a); | |
4150 | } else | |
4151 | r = unit_set_description(UNIT(s), peer); | |
4152 | ||
4153 | if (r < 0) | |
4154 | return r; | |
4155 | } | |
4156 | ||
eef85c4a | 4157 | r = unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false, UNIT_DEPENDENCY_IMPLICIT); |
7f2fbbff LP |
4158 | if (r < 0) |
4159 | return r; | |
4160 | ||
4f2d528d | 4161 | s->socket_fd = fd; |
16115b0a | 4162 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 4163 | |
7f7d01ed | 4164 | unit_ref_set(&s->accept_socket, UNIT(s), UNIT(sock)); |
7f2fbbff | 4165 | return 0; |
4f2d528d LP |
4166 | } |
4167 | ||
fdf20a31 | 4168 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
4169 | Service *s = SERVICE(u); |
4170 | ||
4171 | assert(s); | |
4172 | ||
fdf20a31 | 4173 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
4174 | service_set_state(s, SERVICE_DEAD); |
4175 | ||
f42806df LP |
4176 | s->result = SERVICE_SUCCESS; |
4177 | s->reload_result = SERVICE_SUCCESS; | |
4c2f5842 | 4178 | s->clean_result = SERVICE_SUCCESS; |
7a0019d3 LP |
4179 | s->n_restarts = 0; |
4180 | s->flush_n_restarts = false; | |
5632e374 LP |
4181 | } |
4182 | ||
718db961 | 4183 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 4184 | Service *s = SERVICE(u); |
41efeaec | 4185 | |
a6951a50 LP |
4186 | assert(s); |
4187 | ||
814cc562 | 4188 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
4189 | } |
4190 | ||
291d565a LP |
4191 | static int service_main_pid(Unit *u) { |
4192 | Service *s = SERVICE(u); | |
4193 | ||
4194 | assert(s); | |
4195 | ||
4196 | return s->main_pid; | |
4197 | } | |
4198 | ||
4199 | static int service_control_pid(Unit *u) { | |
4200 | Service *s = SERVICE(u); | |
4201 | ||
4202 | assert(s); | |
4203 | ||
4204 | return s->control_pid; | |
4205 | } | |
4206 | ||
bb2c7685 LP |
4207 | static bool service_needs_console(Unit *u) { |
4208 | Service *s = SERVICE(u); | |
4209 | ||
4210 | assert(s); | |
4211 | ||
4212 | /* We provide our own implementation of this here, instead of relying of the generic implementation | |
4213 | * unit_needs_console() provides, since we want to return false if we are in SERVICE_EXITED state. */ | |
4214 | ||
4215 | if (!exec_context_may_touch_console(&s->exec_context)) | |
4216 | return false; | |
4217 | ||
4218 | return IN_SET(s->state, | |
31cd5f63 | 4219 | SERVICE_CONDITION, |
bb2c7685 LP |
4220 | SERVICE_START_PRE, |
4221 | SERVICE_START, | |
4222 | SERVICE_START_POST, | |
4223 | SERVICE_RUNNING, | |
4224 | SERVICE_RELOAD, | |
4225 | SERVICE_STOP, | |
c87700a1 | 4226 | SERVICE_STOP_WATCHDOG, |
bb2c7685 LP |
4227 | SERVICE_STOP_SIGTERM, |
4228 | SERVICE_STOP_SIGKILL, | |
4229 | SERVICE_STOP_POST, | |
4230 | SERVICE_FINAL_SIGTERM, | |
4231 | SERVICE_FINAL_SIGKILL); | |
4232 | } | |
4233 | ||
7af67e9a LP |
4234 | static int service_exit_status(Unit *u) { |
4235 | Service *s = SERVICE(u); | |
4236 | ||
4237 | assert(u); | |
4238 | ||
4239 | if (s->main_exec_status.pid <= 0 || | |
4240 | !dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) | |
4241 | return -ENODATA; | |
4242 | ||
4243 | if (s->main_exec_status.code != CLD_EXITED) | |
4244 | return -EBADE; | |
4245 | ||
4246 | return s->main_exec_status.status; | |
4247 | } | |
4248 | ||
4c2f5842 LP |
4249 | static int service_clean(Unit *u, ExecCleanMask mask) { |
4250 | _cleanup_strv_free_ char **l = NULL; | |
4251 | Service *s = SERVICE(u); | |
4c2f5842 LP |
4252 | int r; |
4253 | ||
4254 | assert(s); | |
4255 | assert(mask != 0); | |
4256 | ||
4257 | if (s->state != SERVICE_DEAD) | |
4258 | return -EBUSY; | |
4259 | ||
4260 | r = exec_context_get_clean_directories(&s->exec_context, u->manager->prefix, mask, &l); | |
4261 | if (r < 0) | |
4262 | return r; | |
4263 | ||
4264 | if (strv_isempty(l)) | |
4265 | return -EUNATCH; | |
4266 | ||
4267 | service_unwatch_control_pid(s); | |
4268 | s->clean_result = SERVICE_SUCCESS; | |
4269 | s->control_command = NULL; | |
4270 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
4271 | ||
12213aed | 4272 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->exec_context.timeout_clean_usec)); |
4c2f5842 LP |
4273 | if (r < 0) |
4274 | goto fail; | |
4275 | ||
810ef318 | 4276 | r = unit_fork_and_watch_rm_rf(u, l, &s->control_pid); |
4c2f5842 LP |
4277 | if (r < 0) |
4278 | goto fail; | |
4279 | ||
4c2f5842 LP |
4280 | service_set_state(s, SERVICE_CLEANING); |
4281 | ||
4282 | return 0; | |
4283 | ||
4284 | fail: | |
810ef318 | 4285 | log_unit_warning_errno(u, r, "Failed to initiate cleaning: %m"); |
4c2f5842 LP |
4286 | s->clean_result = SERVICE_FAILURE_RESOURCES; |
4287 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
4288 | return r; | |
4289 | } | |
4290 | ||
4291 | static int service_can_clean(Unit *u, ExecCleanMask *ret) { | |
4292 | Service *s = SERVICE(u); | |
4293 | ||
4294 | assert(s); | |
4295 | ||
4296 | return exec_context_get_clean_mask(&s->exec_context, ret); | |
4297 | } | |
4298 | ||
94f04347 | 4299 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
525ee6f4 LP |
4300 | [SERVICE_RESTART_NO] = "no", |
4301 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 4302 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 4303 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 4304 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 4305 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 4306 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
4307 | }; |
4308 | ||
4309 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
4310 | ||
4311 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 4312 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 4313 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 4314 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 4315 | [SERVICE_DBUS] = "dbus", |
f2b68789 | 4316 | [SERVICE_NOTIFY] = "notify", |
5686391b LP |
4317 | [SERVICE_IDLE] = "idle", |
4318 | [SERVICE_EXEC] = "exec", | |
94f04347 LP |
4319 | }; |
4320 | ||
4321 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
4322 | ||
e537352b | 4323 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
31cd5f63 | 4324 | [SERVICE_EXEC_CONDITION] = "ExecCondition", |
94f04347 LP |
4325 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
4326 | [SERVICE_EXEC_START] = "ExecStart", | |
4327 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
4328 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
4329 | [SERVICE_EXEC_STOP] = "ExecStop", | |
4330 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
4331 | }; | |
4332 | ||
4333 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
4334 | ||
b3d59367 | 4335 | static const char* const service_exec_ex_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
898fc00e | 4336 | [SERVICE_EXEC_CONDITION] = "ExecConditionEx", |
b3d59367 AZ |
4337 | [SERVICE_EXEC_START_PRE] = "ExecStartPreEx", |
4338 | [SERVICE_EXEC_START] = "ExecStartEx", | |
4339 | [SERVICE_EXEC_START_POST] = "ExecStartPostEx", | |
898fc00e AZ |
4340 | [SERVICE_EXEC_RELOAD] = "ExecReloadEx", |
4341 | [SERVICE_EXEC_STOP] = "ExecStopEx", | |
4342 | [SERVICE_EXEC_STOP_POST] = "ExecStopPostEx", | |
b3d59367 AZ |
4343 | }; |
4344 | ||
4345 | DEFINE_STRING_TABLE_LOOKUP(service_exec_ex_command, ServiceExecCommand); | |
4346 | ||
308d72dc LP |
4347 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
4348 | [NOTIFY_UNKNOWN] = "unknown", | |
4349 | [NOTIFY_READY] = "ready", | |
4350 | [NOTIFY_RELOADING] = "reloading", | |
4351 | [NOTIFY_STOPPING] = "stopping", | |
4352 | }; | |
4353 | ||
4354 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
4355 | ||
f42806df LP |
4356 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
4357 | [SERVICE_SUCCESS] = "success", | |
4358 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
c35755fb | 4359 | [SERVICE_FAILURE_PROTOCOL] = "protocol", |
f42806df LP |
4360 | [SERVICE_FAILURE_TIMEOUT] = "timeout", |
4361 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
4362 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 4363 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a | 4364 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
07299350 | 4365 | [SERVICE_FAILURE_START_LIMIT_HIT] = "start-limit-hit", |
afcfaa69 | 4366 | [SERVICE_FAILURE_OOM_KILL] = "oom-kill", |
31cd5f63 | 4367 | [SERVICE_SKIP_CONDITION] = "exec-condition", |
f42806df LP |
4368 | }; |
4369 | ||
4370 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
4371 | ||
87f0e418 | 4372 | const UnitVTable service_vtable = { |
7d17cfbc | 4373 | .object_size = sizeof(Service), |
718db961 LP |
4374 | .exec_context_offset = offsetof(Service, exec_context), |
4375 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
4376 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 4377 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
29206d46 | 4378 | .dynamic_creds_offset = offsetof(Service, dynamic_creds), |
3ef63c31 | 4379 | |
f975e971 LP |
4380 | .sections = |
4381 | "Unit\0" | |
4382 | "Service\0" | |
4383 | "Install\0", | |
4ad49000 | 4384 | .private_section = "Service", |
71645aca | 4385 | |
1d9cc876 LP |
4386 | .can_transient = true, |
4387 | .can_delegate = true, | |
4388 | ||
034c6ed7 LP |
4389 | .init = service_init, |
4390 | .done = service_done, | |
a16e1123 | 4391 | .load = service_load, |
a354329f | 4392 | .release_resources = service_release_resources, |
a16e1123 LP |
4393 | |
4394 | .coldplug = service_coldplug, | |
034c6ed7 | 4395 | |
5cb5a6ff LP |
4396 | .dump = service_dump, |
4397 | ||
4398 | .start = service_start, | |
4399 | .stop = service_stop, | |
4400 | .reload = service_reload, | |
4401 | ||
034c6ed7 LP |
4402 | .can_reload = service_can_reload, |
4403 | ||
8a0867d6 | 4404 | .kill = service_kill, |
4c2f5842 LP |
4405 | .clean = service_clean, |
4406 | .can_clean = service_can_clean, | |
8a0867d6 | 4407 | |
a16e1123 LP |
4408 | .serialize = service_serialize, |
4409 | .deserialize_item = service_deserialize_item, | |
4410 | ||
5cb5a6ff | 4411 | .active_state = service_active_state, |
10a94420 | 4412 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 4413 | |
deb4e708 MK |
4414 | .will_restart = service_will_restart, |
4415 | ||
f2f725e5 | 4416 | .may_gc = service_may_gc, |
701cc384 | 4417 | |
034c6ed7 | 4418 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 4419 | |
fdf20a31 | 4420 | .reset_failed = service_reset_failed, |
5632e374 | 4421 | |
4ad49000 | 4422 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
afcfaa69 | 4423 | .notify_cgroup_oom = service_notify_cgroup_oom_event, |
8c47c732 | 4424 | .notify_message = service_notify_message, |
8e274523 | 4425 | |
291d565a LP |
4426 | .main_pid = service_main_pid, |
4427 | .control_pid = service_control_pid, | |
4428 | ||
05e343b7 | 4429 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 4430 | |
718db961 | 4431 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
4432 | .bus_set_property = bus_service_set_property, |
4433 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 4434 | |
68db7a3b | 4435 | .get_timeout = service_get_timeout, |
bb2c7685 | 4436 | .needs_console = service_needs_console, |
7af67e9a | 4437 | .exit_status = service_exit_status, |
718db961 | 4438 | |
c6918296 MS |
4439 | .status_message_formats = { |
4440 | .starting_stopping = { | |
4441 | [0] = "Starting %s...", | |
4442 | [1] = "Stopping %s...", | |
4443 | }, | |
4444 | .finished_start_job = { | |
4445 | [JOB_DONE] = "Started %s.", | |
4446 | [JOB_FAILED] = "Failed to start %s.", | |
31cd5f63 | 4447 | [JOB_SKIPPED] = "Skipped %s.", |
c6918296 MS |
4448 | }, |
4449 | .finished_stop_job = { | |
4450 | [JOB_DONE] = "Stopped %s.", | |
4451 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 MS |
4452 | }, |
4453 | }, | |
5cb5a6ff | 4454 | }; |