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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> |
ca78ad1d ZJS |
4 | #include <sys/stat.h> |
5 | #include <sys/types.h> | |
2c4104f0 | 6 | #include <unistd.h> |
5cb5a6ff | 7 | |
7a0019d3 LP |
8 | #include "sd-messages.h" |
9 | ||
b5efdb8a | 10 | #include "alloc-util.h" |
574634bc | 11 | #include "async.h" |
4f5dd394 LP |
12 | #include "bus-error.h" |
13 | #include "bus-kernel.h" | |
14 | #include "bus-util.h" | |
4139c1b2 | 15 | #include "dbus-service.h" |
6fcbec6f | 16 | #include "dbus-unit.h" |
f6a6225e | 17 | #include "def.h" |
4d1a6904 | 18 | #include "env-util.h" |
4f5dd394 LP |
19 | #include "escape.h" |
20 | #include "exit-status.h" | |
3ffd4af2 | 21 | #include "fd-util.h" |
a5c32cff | 22 | #include "fileio.h" |
f97b34a6 | 23 | #include "format-util.h" |
f4f15635 | 24 | #include "fs-util.h" |
4f5dd394 LP |
25 | #include "load-dropin.h" |
26 | #include "load-fragment.h" | |
27 | #include "log.h" | |
28 | #include "manager.h" | |
6bedfcbb | 29 | #include "parse-util.h" |
4f5dd394 | 30 | #include "path-util.h" |
0b452006 | 31 | #include "process-util.h" |
d68c645b | 32 | #include "serialize.h" |
3ffd4af2 | 33 | #include "service.h" |
24882e06 | 34 | #include "signal-util.h" |
4f5dd394 | 35 | #include "special.h" |
e266c068 | 36 | #include "stdio-util.h" |
8b43440b | 37 | #include "string-table.h" |
07630cea | 38 | #include "string-util.h" |
4f5dd394 LP |
39 | #include "strv.h" |
40 | #include "unit-name.h" | |
4f5dd394 LP |
41 | #include "unit.h" |
42 | #include "utf8.h" | |
43 | #include "util.h" | |
034c6ed7 | 44 | |
acbb0225 | 45 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 | 46 | [SERVICE_DEAD] = UNIT_INACTIVE, |
31cd5f63 | 47 | [SERVICE_CONDITION] = UNIT_ACTIVATING, |
87f0e418 LP |
48 | [SERVICE_START_PRE] = UNIT_ACTIVATING, |
49 | [SERVICE_START] = UNIT_ACTIVATING, | |
50 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
51 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 52 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 53 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 | 54 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
c87700a1 | 55 | [SERVICE_STOP_WATCHDOG] = UNIT_DEACTIVATING, |
87f0e418 LP |
56 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
57 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
58 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
59 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
60 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 61 | [SERVICE_FAILED] = UNIT_FAILED, |
4c2f5842 LP |
62 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, |
63 | [SERVICE_CLEANING] = UNIT_MAINTENANCE, | |
034c6ed7 | 64 | }; |
5cb5a6ff | 65 | |
e056b01d LP |
66 | /* For Type=idle we never want to delay any other jobs, hence we |
67 | * consider idle jobs active as soon as we start working on them */ | |
68 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
69 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
31cd5f63 | 70 | [SERVICE_CONDITION] = UNIT_ACTIVE, |
e056b01d LP |
71 | [SERVICE_START_PRE] = UNIT_ACTIVE, |
72 | [SERVICE_START] = UNIT_ACTIVE, | |
73 | [SERVICE_START_POST] = UNIT_ACTIVE, | |
74 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
75 | [SERVICE_EXITED] = UNIT_ACTIVE, | |
76 | [SERVICE_RELOAD] = UNIT_RELOADING, | |
77 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
c87700a1 | 78 | [SERVICE_STOP_WATCHDOG] = UNIT_DEACTIVATING, |
e056b01d LP |
79 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
80 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
81 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
82 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
83 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
84 | [SERVICE_FAILED] = UNIT_FAILED, | |
4c2f5842 LP |
85 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, |
86 | [SERVICE_CLEANING] = UNIT_MAINTENANCE, | |
e056b01d LP |
87 | }; |
88 | ||
5686391b | 89 | static int service_dispatch_inotify_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
718db961 LP |
90 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); |
91 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); | |
5686391b | 92 | static int service_dispatch_exec_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
718db961 | 93 | |
842129f5 | 94 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
308d72dc | 95 | static void service_enter_reload_by_notify(Service *s); |
842129f5 | 96 | |
a16e1123 LP |
97 | static void service_init(Unit *u) { |
98 | Service *s = SERVICE(u); | |
99 | ||
100 | assert(u); | |
ac155bb8 | 101 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 102 | |
1f19a534 OS |
103 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
104 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
dc653bf4 JK |
105 | s->timeout_abort_usec = u->manager->default_timeout_abort_usec; |
106 | s->timeout_abort_set = u->manager->default_timeout_abort_set; | |
1f19a534 | 107 | s->restart_usec = u->manager->default_restart_usec; |
36c16a7c | 108 | s->runtime_max_usec = USEC_INFINITY; |
0b86feac | 109 | s->type = _SERVICE_TYPE_INVALID; |
a16e1123 | 110 | s->socket_fd = -1; |
a34ceba6 | 111 | s->stdin_fd = s->stdout_fd = s->stderr_fd = -1; |
3185a36b | 112 | s->guess_main_pid = true; |
a16e1123 | 113 | |
a16e1123 | 114 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
00f5ad93 LP |
115 | |
116 | s->exec_context.keyring_mode = MANAGER_IS_SYSTEM(u->manager) ? | |
117 | EXEC_KEYRING_PRIVATE : EXEC_KEYRING_INHERIT; | |
aa8c4bbf LP |
118 | |
119 | s->watchdog_original_usec = USEC_INFINITY; | |
afcfaa69 LP |
120 | |
121 | s->oom_policy = _OOM_POLICY_INVALID; | |
a16e1123 LP |
122 | } |
123 | ||
5e94833f LP |
124 | static void service_unwatch_control_pid(Service *s) { |
125 | assert(s); | |
126 | ||
127 | if (s->control_pid <= 0) | |
128 | return; | |
129 | ||
130 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
131 | s->control_pid = 0; | |
132 | } | |
133 | ||
134 | static void service_unwatch_main_pid(Service *s) { | |
135 | assert(s); | |
136 | ||
137 | if (s->main_pid <= 0) | |
138 | return; | |
139 | ||
140 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
141 | s->main_pid = 0; | |
142 | } | |
143 | ||
3e52541e MS |
144 | static void service_unwatch_pid_file(Service *s) { |
145 | if (!s->pid_file_pathspec) | |
146 | return; | |
147 | ||
f2341e0a | 148 | log_unit_debug(UNIT(s), "Stopping watch for PID file %s", s->pid_file_pathspec->path); |
718db961 | 149 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e | 150 | path_spec_done(s->pid_file_pathspec); |
a1e58e8e | 151 | s->pid_file_pathspec = mfree(s->pid_file_pathspec); |
3e52541e MS |
152 | } |
153 | ||
5925dd3c LP |
154 | static int service_set_main_pid(Service *s, pid_t pid) { |
155 | assert(s); | |
156 | ||
157 | if (pid <= 1) | |
158 | return -EINVAL; | |
159 | ||
df0ff127 | 160 | if (pid == getpid_cached()) |
5925dd3c LP |
161 | return -EINVAL; |
162 | ||
7400b9d2 LP |
163 | if (s->main_pid == pid && s->main_pid_known) |
164 | return 0; | |
165 | ||
166 | if (s->main_pid != pid) { | |
167 | service_unwatch_main_pid(s); | |
168 | exec_status_start(&s->main_exec_status, pid); | |
169 | } | |
41efeaec | 170 | |
6dfa5494 LP |
171 | s->main_pid = pid; |
172 | s->main_pid_known = true; | |
4d051546 | 173 | s->main_pid_alien = pid_is_my_child(pid) == 0; |
6dfa5494 | 174 | |
4d051546 | 175 | if (s->main_pid_alien) |
f2341e0a | 176 | 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 |
177 | |
178 | return 0; | |
179 | } | |
180 | ||
3e7a1f50 | 181 | void service_close_socket_fd(Service *s) { |
4f2d528d LP |
182 | assert(s); |
183 | ||
5cc3985e | 184 | /* Undo the effect of service_set_socket_fd(). */ |
4f2d528d | 185 | |
5cc3985e | 186 | s->socket_fd = asynchronous_close(s->socket_fd); |
6cf6bbc2 | 187 | |
5cc3985e LP |
188 | if (UNIT_ISSET(s->accept_socket)) { |
189 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); | |
190 | unit_ref_unset(&s->accept_socket); | |
191 | } | |
6cf6bbc2 LP |
192 | } |
193 | ||
a6927d7f MO |
194 | static void service_stop_watchdog(Service *s) { |
195 | assert(s); | |
196 | ||
718db961 | 197 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
842129f5 | 198 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
199 | } |
200 | ||
2787d83c M |
201 | static usec_t service_get_watchdog_usec(Service *s) { |
202 | assert(s); | |
203 | ||
204 | if (s->watchdog_override_enable) | |
205 | return s->watchdog_override_usec; | |
9fb1cdb4 LP |
206 | |
207 | return s->watchdog_original_usec; | |
2787d83c M |
208 | } |
209 | ||
842129f5 | 210 | static void service_start_watchdog(Service *s) { |
2787d83c | 211 | usec_t watchdog_usec; |
9fb1cdb4 | 212 | int r; |
bb242b7b MO |
213 | |
214 | assert(s); | |
215 | ||
2787d83c | 216 | watchdog_usec = service_get_watchdog_usec(s); |
9fb1cdb4 LP |
217 | if (IN_SET(watchdog_usec, 0, USEC_INFINITY)) { |
218 | service_stop_watchdog(s); | |
bb242b7b | 219 | return; |
9fb1cdb4 | 220 | } |
bb242b7b | 221 | |
718db961 | 222 | if (s->watchdog_event_source) { |
2787d83c | 223 | r = sd_event_source_set_time(s->watchdog_event_source, usec_add(s->watchdog_timestamp.monotonic, watchdog_usec)); |
718db961 | 224 | if (r < 0) { |
f2341e0a | 225 | log_unit_warning_errno(UNIT(s), r, "Failed to reset watchdog timer: %m"); |
718db961 LP |
226 | return; |
227 | } | |
228 | ||
842129f5 | 229 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 230 | } else { |
6a0f1f6d LP |
231 | r = sd_event_add_time( |
232 | UNIT(s)->manager->event, | |
233 | &s->watchdog_event_source, | |
234 | CLOCK_MONOTONIC, | |
2787d83c | 235 | usec_add(s->watchdog_timestamp.monotonic, watchdog_usec), 0, |
6a0f1f6d | 236 | service_dispatch_watchdog, s); |
c4ef3317 | 237 | if (r < 0) { |
f2341e0a | 238 | log_unit_warning_errno(UNIT(s), r, "Failed to add watchdog timer: %m"); |
c4ef3317 LP |
239 | return; |
240 | } | |
241 | ||
7dfbe2e3 TG |
242 | (void) sd_event_source_set_description(s->watchdog_event_source, "service-watchdog"); |
243 | ||
c4ef3317 LP |
244 | /* Let's process everything else which might be a sign |
245 | * of living before we consider a service died. */ | |
246 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
247 | } | |
bb242b7b | 248 | if (r < 0) |
f2341e0a | 249 | log_unit_warning_errno(UNIT(s), r, "Failed to install watchdog timer: %m"); |
bb242b7b MO |
250 | } |
251 | ||
ec35a7f6 LP |
252 | static void service_extend_event_source_timeout(Service *s, sd_event_source *source, usec_t extended) { |
253 | usec_t current; | |
254 | int r; | |
255 | ||
a327431b DB |
256 | assert(s); |
257 | ||
ec35a7f6 LP |
258 | /* Extends the specified event source timer to at least the specified time, unless it is already later |
259 | * anyway. */ | |
a327431b | 260 | |
ec35a7f6 LP |
261 | if (!source) |
262 | return; | |
a327431b | 263 | |
ec35a7f6 LP |
264 | r = sd_event_source_get_time(source, ¤t); |
265 | if (r < 0) { | |
266 | const char *desc; | |
267 | (void) sd_event_source_get_description(s->timer_event_source, &desc); | |
268 | log_unit_warning_errno(UNIT(s), r, "Failed to retrieve timeout time for event source '%s', ignoring: %m", strna(desc)); | |
269 | return; | |
270 | } | |
a327431b | 271 | |
ec35a7f6 LP |
272 | if (current >= extended) /* Current timeout is already longer, ignore this. */ |
273 | return; | |
a327431b | 274 | |
ec35a7f6 LP |
275 | r = sd_event_source_set_time(source, extended); |
276 | if (r < 0) { | |
277 | const char *desc; | |
278 | (void) sd_event_source_get_description(s->timer_event_source, &desc); | |
279 | log_unit_warning_errno(UNIT(s), r, "Failed to set timeout time for even source '%s', ignoring %m", strna(desc)); | |
a327431b DB |
280 | } |
281 | } | |
282 | ||
ec35a7f6 LP |
283 | static void service_extend_timeout(Service *s, usec_t extend_timeout_usec) { |
284 | usec_t extended; | |
285 | ||
286 | assert(s); | |
287 | ||
288 | if (IN_SET(extend_timeout_usec, 0, USEC_INFINITY)) | |
289 | return; | |
290 | ||
291 | extended = usec_add(now(CLOCK_MONOTONIC), extend_timeout_usec); | |
292 | ||
293 | service_extend_event_source_timeout(s, s->timer_event_source, extended); | |
294 | service_extend_event_source_timeout(s, s->watchdog_event_source, extended); | |
295 | } | |
296 | ||
a6927d7f MO |
297 | static void service_reset_watchdog(Service *s) { |
298 | assert(s); | |
299 | ||
300 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 301 | service_start_watchdog(s); |
a6927d7f MO |
302 | } |
303 | ||
95d0d8ed | 304 | static void service_override_watchdog_timeout(Service *s, usec_t watchdog_override_usec) { |
2787d83c M |
305 | assert(s); |
306 | ||
307 | s->watchdog_override_enable = true; | |
308 | s->watchdog_override_usec = watchdog_override_usec; | |
309 | service_reset_watchdog(s); | |
310 | ||
311 | log_unit_debug(UNIT(s), "watchdog_usec="USEC_FMT, s->watchdog_usec); | |
312 | log_unit_debug(UNIT(s), "watchdog_override_usec="USEC_FMT, s->watchdog_override_usec); | |
313 | } | |
314 | ||
a354329f LP |
315 | static void service_fd_store_unlink(ServiceFDStore *fs) { |
316 | ||
317 | if (!fs) | |
318 | return; | |
319 | ||
320 | if (fs->service) { | |
321 | assert(fs->service->n_fd_store > 0); | |
322 | LIST_REMOVE(fd_store, fs->service->fd_store, fs); | |
323 | fs->service->n_fd_store--; | |
324 | } | |
325 | ||
1d3fe304 | 326 | sd_event_source_disable_unref(fs->event_source); |
a354329f | 327 | |
8dd4c05b | 328 | free(fs->fdname); |
a354329f LP |
329 | safe_close(fs->fd); |
330 | free(fs); | |
331 | } | |
332 | ||
f0bfbfac ZJS |
333 | static void service_release_fd_store(Service *s) { |
334 | assert(s); | |
335 | ||
7eb2a8a1 LP |
336 | if (s->n_keep_fd_store > 0) |
337 | return; | |
338 | ||
f0bfbfac ZJS |
339 | log_unit_debug(UNIT(s), "Releasing all stored fds"); |
340 | while (s->fd_store) | |
341 | service_fd_store_unlink(s->fd_store); | |
342 | ||
343 | assert(s->n_fd_store == 0); | |
344 | } | |
345 | ||
7eb2a8a1 | 346 | static void service_release_resources(Unit *u) { |
a354329f LP |
347 | Service *s = SERVICE(u); |
348 | ||
349 | assert(s); | |
350 | ||
a34ceba6 | 351 | if (!s->fd_store && s->stdin_fd < 0 && s->stdout_fd < 0 && s->stderr_fd < 0) |
a354329f LP |
352 | return; |
353 | ||
f0bfbfac | 354 | log_unit_debug(u, "Releasing resources."); |
a354329f | 355 | |
a34ceba6 LP |
356 | s->stdin_fd = safe_close(s->stdin_fd); |
357 | s->stdout_fd = safe_close(s->stdout_fd); | |
358 | s->stderr_fd = safe_close(s->stderr_fd); | |
359 | ||
7eb2a8a1 | 360 | service_release_fd_store(s); |
a354329f LP |
361 | } |
362 | ||
87f0e418 LP |
363 | static void service_done(Unit *u) { |
364 | Service *s = SERVICE(u); | |
44d8db9e LP |
365 | |
366 | assert(s); | |
367 | ||
a1e58e8e LP |
368 | s->pid_file = mfree(s->pid_file); |
369 | s->status_text = mfree(s->status_text); | |
efe6e7d3 | 370 | |
e8a565cb | 371 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, false); |
e537352b | 372 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 373 | s->control_command = NULL; |
867b3b7d | 374 | s->main_command = NULL; |
44d8db9e | 375 | |
29206d46 LP |
376 | dynamic_creds_unref(&s->dynamic_creds); |
377 | ||
37520c1b LP |
378 | exit_status_set_free(&s->restart_prevent_status); |
379 | exit_status_set_free(&s->restart_force_status); | |
380 | exit_status_set_free(&s->success_status); | |
96342de6 | 381 | |
44d8db9e LP |
382 | /* This will leak a process, but at least no memory or any of |
383 | * our resources */ | |
5e94833f LP |
384 | service_unwatch_main_pid(s); |
385 | service_unwatch_control_pid(s); | |
3e52541e | 386 | service_unwatch_pid_file(s); |
44d8db9e | 387 | |
05e343b7 | 388 | if (s->bus_name) { |
ac155bb8 | 389 | unit_unwatch_bus_name(u, s->bus_name); |
a1e58e8e | 390 | s->bus_name = mfree(s->bus_name); |
05e343b7 LP |
391 | } |
392 | ||
d8ccf5fd DM |
393 | s->bus_name_owner = mfree(s->bus_name_owner); |
394 | ||
064c5938 ZJS |
395 | s->usb_function_descriptors = mfree(s->usb_function_descriptors); |
396 | s->usb_function_strings = mfree(s->usb_function_strings); | |
397 | ||
4f2d528d | 398 | service_close_socket_fd(s); |
9d565427 | 399 | s->peer = socket_peer_unref(s->peer); |
4f2d528d | 400 | |
57020a3a | 401 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 402 | |
bb242b7b MO |
403 | service_stop_watchdog(s); |
404 | ||
718db961 | 405 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
5686391b | 406 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); |
a354329f | 407 | |
7eb2a8a1 | 408 | service_release_resources(u); |
718db961 LP |
409 | } |
410 | ||
2339fc93 LP |
411 | static int on_fd_store_io(sd_event_source *e, int fd, uint32_t revents, void *userdata) { |
412 | ServiceFDStore *fs = userdata; | |
413 | ||
414 | assert(e); | |
415 | assert(fs); | |
416 | ||
417 | /* If we get either EPOLLHUP or EPOLLERR, it's time to remove this entry from the fd store */ | |
16f70d63 ZJS |
418 | log_unit_debug(UNIT(fs->service), |
419 | "Received %s on stored fd %d (%s), closing.", | |
420 | revents & EPOLLERR ? "EPOLLERR" : "EPOLLHUP", | |
421 | fs->fd, strna(fs->fdname)); | |
2339fc93 LP |
422 | service_fd_store_unlink(fs); |
423 | return 0; | |
424 | } | |
425 | ||
8dd4c05b | 426 | static int service_add_fd_store(Service *s, int fd, const char *name) { |
2339fc93 LP |
427 | ServiceFDStore *fs; |
428 | int r; | |
429 | ||
9021ff17 ZJS |
430 | /* fd is always consumed if we return >= 0 */ |
431 | ||
2339fc93 LP |
432 | assert(s); |
433 | assert(fd >= 0); | |
434 | ||
435 | if (s->n_fd_store >= s->n_fd_store_max) | |
b0924635 ZJS |
436 | return -EXFULL; /* Our store is full. |
437 | * Use this errno rather than E[NM]FILE to distinguish from | |
438 | * the case where systemd itself hits the file limit. */ | |
2339fc93 LP |
439 | |
440 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
441 | r = same_fd(fs->fd, fd); | |
442 | if (r < 0) | |
443 | return r; | |
444 | if (r > 0) { | |
2339fc93 | 445 | safe_close(fd); |
9021ff17 | 446 | return 0; /* fd already included */ |
2339fc93 LP |
447 | } |
448 | } | |
449 | ||
450 | fs = new0(ServiceFDStore, 1); | |
451 | if (!fs) | |
452 | return -ENOMEM; | |
453 | ||
454 | fs->fd = fd; | |
455 | fs->service = s; | |
8dd4c05b | 456 | fs->fdname = strdup(name ?: "stored"); |
17dec0f7 | 457 | if (!fs->fdname) { |
458 | free(fs); | |
8dd4c05b | 459 | return -ENOMEM; |
17dec0f7 | 460 | } |
2339fc93 LP |
461 | |
462 | r = sd_event_add_io(UNIT(s)->manager->event, &fs->event_source, fd, 0, on_fd_store_io, fs); | |
3ceb72e5 | 463 | if (r < 0 && r != -EPERM) { /* EPERM indicates fds that aren't pollable, which is OK */ |
8dd4c05b | 464 | free(fs->fdname); |
2339fc93 LP |
465 | free(fs); |
466 | return r; | |
3ceb72e5 LP |
467 | } else if (r >= 0) |
468 | (void) sd_event_source_set_description(fs->event_source, "service-fd-store"); | |
7dfbe2e3 | 469 | |
2339fc93 LP |
470 | LIST_PREPEND(fd_store, s->fd_store, fs); |
471 | s->n_fd_store++; | |
472 | ||
9021ff17 | 473 | return 1; /* fd newly stored */ |
2339fc93 LP |
474 | } |
475 | ||
8dd4c05b | 476 | static int service_add_fd_store_set(Service *s, FDSet *fds, const char *name) { |
2339fc93 LP |
477 | int r; |
478 | ||
479 | assert(s); | |
480 | ||
b0924635 | 481 | while (fdset_size(fds) > 0) { |
2339fc93 LP |
482 | _cleanup_close_ int fd = -1; |
483 | ||
484 | fd = fdset_steal_first(fds); | |
485 | if (fd < 0) | |
486 | break; | |
487 | ||
8dd4c05b | 488 | r = service_add_fd_store(s, fd, name); |
b0924635 ZJS |
489 | if (r == -EXFULL) |
490 | return log_unit_warning_errno(UNIT(s), r, | |
491 | "Cannot store more fds than FileDescriptorStoreMax=%u, closing remaining.", | |
492 | s->n_fd_store_max); | |
2339fc93 | 493 | if (r < 0) |
b0924635 | 494 | return log_unit_error_errno(UNIT(s), r, "Failed to add fd to store: %m"); |
9021ff17 | 495 | if (r > 0) |
16f70d63 | 496 | log_unit_debug(UNIT(s), "Added fd %u (%s) to fd store.", fd, strna(name)); |
9021ff17 | 497 | fd = -1; |
2339fc93 LP |
498 | } |
499 | ||
2339fc93 LP |
500 | return 0; |
501 | } | |
502 | ||
e78ee06d LP |
503 | static void service_remove_fd_store(Service *s, const char *name) { |
504 | ServiceFDStore *fs, *n; | |
505 | ||
506 | assert(s); | |
507 | assert(name); | |
508 | ||
509 | LIST_FOREACH_SAFE(fd_store, fs, n, s->fd_store) { | |
510 | if (!streq(fs->fdname, name)) | |
511 | continue; | |
512 | ||
513 | log_unit_debug(UNIT(s), "Got explicit request to remove fd %i (%s), closing.", fs->fd, name); | |
514 | service_fd_store_unlink(fs); | |
515 | } | |
516 | } | |
517 | ||
718db961 LP |
518 | static int service_arm_timer(Service *s, usec_t usec) { |
519 | int r; | |
520 | ||
521 | assert(s); | |
522 | ||
718db961 | 523 | if (s->timer_event_source) { |
36c16a7c | 524 | r = sd_event_source_set_time(s->timer_event_source, usec); |
718db961 LP |
525 | if (r < 0) |
526 | return r; | |
527 | ||
528 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
529 | } | |
530 | ||
36c16a7c LP |
531 | if (usec == USEC_INFINITY) |
532 | return 0; | |
533 | ||
7dfbe2e3 | 534 | r = sd_event_add_time( |
6a0f1f6d LP |
535 | UNIT(s)->manager->event, |
536 | &s->timer_event_source, | |
537 | CLOCK_MONOTONIC, | |
36c16a7c | 538 | usec, 0, |
6a0f1f6d | 539 | service_dispatch_timer, s); |
7dfbe2e3 TG |
540 | if (r < 0) |
541 | return r; | |
542 | ||
543 | (void) sd_event_source_set_description(s->timer_event_source, "service-timer"); | |
544 | ||
545 | return 0; | |
44d8db9e LP |
546 | } |
547 | ||
243b1432 LP |
548 | static int service_verify(Service *s) { |
549 | assert(s); | |
e0cfed4c | 550 | assert(UNIT(s)->load_state == UNIT_LOADED); |
243b1432 | 551 | |
3f00d379 ZJS |
552 | if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP] |
553 | && UNIT(s)->success_action == EMERGENCY_ACTION_NONE) { | |
554 | /* FailureAction= only makes sense if one of the start or stop commands is specified. | |
555 | * SuccessAction= will be executed unconditionally if no commands are specified. Hence, | |
556 | * either a command or SuccessAction= are required. */ | |
557 | ||
558 | log_unit_error(UNIT(s), "Service has no ExecStart=, ExecStop=, or SuccessAction=. Refusing."); | |
6f40aa45 | 559 | return -ENOEXEC; |
243b1432 LP |
560 | } |
561 | ||
96fb8242 | 562 | if (s->type != SERVICE_ONESHOT && !s->exec_command[SERVICE_EXEC_START]) { |
f2341e0a | 563 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 564 | return -ENOEXEC; |
96fb8242 LP |
565 | } |
566 | ||
3f00d379 ZJS |
567 | if (!s->remain_after_exit && !s->exec_command[SERVICE_EXEC_START] && UNIT(s)->success_action == EMERGENCY_ACTION_NONE) { |
568 | log_unit_error(UNIT(s), "Service has no ExecStart= and no SuccessAction= settings and does not have RemainAfterExit=yes set. Refusing."); | |
6f40aa45 | 569 | return -ENOEXEC; |
96fb8242 LP |
570 | } |
571 | ||
572 | if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) { | |
f2341e0a | 573 | log_unit_error(UNIT(s), "Service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 574 | return -ENOEXEC; |
6cf6bbc2 LP |
575 | } |
576 | ||
10e72727 CZ |
577 | if (s->type == SERVICE_ONESHOT |
578 | && !IN_SET(s->restart, SERVICE_RESTART_NO, SERVICE_RESTART_ON_FAILURE, SERVICE_RESTART_ON_ABNORMAL, SERVICE_RESTART_ON_WATCHDOG, SERVICE_RESTART_ON_ABORT)) { | |
579 | log_unit_error(UNIT(s), "Service has Restart= set to either always or on-success, which isn't allowed for Type=oneshot services. Refusing."); | |
6f40aa45 | 580 | return -ENOEXEC; |
37520c1b LP |
581 | } |
582 | ||
55ebf98c | 583 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) { |
f2341e0a | 584 | log_unit_error(UNIT(s), "Service has RestartForceStatus= set, which isn't allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 585 | return -ENOEXEC; |
b0693d30 MW |
586 | } |
587 | ||
05e343b7 | 588 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
f2341e0a | 589 | log_unit_error(UNIT(s), "Service is of type D-Bus but no D-Bus service name has been specified. Refusing."); |
6f40aa45 | 590 | return -ENOEXEC; |
4d0e5dbd LP |
591 | } |
592 | ||
7e2668c6 | 593 | if (s->bus_name && s->type != SERVICE_DBUS) |
f2341e0a | 594 | log_unit_warning(UNIT(s), "Service has a D-Bus service name specified, but is not of type dbus. Ignoring."); |
7e2668c6 | 595 | |
3742095b | 596 | if (s->exec_context.pam_name && !IN_SET(s->kill_context.kill_mode, KILL_CONTROL_GROUP, KILL_MIXED)) { |
f2341e0a | 597 | log_unit_error(UNIT(s), "Service has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing."); |
6f40aa45 | 598 | return -ENOEXEC; |
05e343b7 LP |
599 | } |
600 | ||
6b7e5923 PS |
601 | if (s->usb_function_descriptors && !s->usb_function_strings) |
602 | log_unit_warning(UNIT(s), "Service has USBFunctionDescriptors= setting, but no USBFunctionStrings=. Ignoring."); | |
603 | ||
604 | if (!s->usb_function_descriptors && s->usb_function_strings) | |
605 | log_unit_warning(UNIT(s), "Service has USBFunctionStrings= setting, but no USBFunctionDescriptors=. Ignoring."); | |
606 | ||
36c16a7c | 607 | if (s->runtime_max_usec != USEC_INFINITY && s->type == SERVICE_ONESHOT) |
226a08f2 | 608 | log_unit_warning(UNIT(s), "RuntimeMaxSec= has no effect in combination with Type=oneshot. Ignoring."); |
36c16a7c | 609 | |
243b1432 LP |
610 | return 0; |
611 | } | |
612 | ||
a40eb732 LP |
613 | static int service_add_default_dependencies(Service *s) { |
614 | int r; | |
615 | ||
616 | assert(s); | |
617 | ||
45f06b34 LP |
618 | if (!UNIT(s)->default_dependencies) |
619 | return 0; | |
620 | ||
a40eb732 LP |
621 | /* Add a number of automatic dependencies useful for the |
622 | * majority of services. */ | |
623 | ||
463d0d15 | 624 | if (MANAGER_IS_SYSTEM(UNIT(s)->manager)) { |
cb4c247d LP |
625 | /* First, pull in the really early boot stuff, and |
626 | * require it, so that we fail if we can't acquire | |
627 | * it. */ | |
628 | ||
5a724170 | 629 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
cb4c247d LP |
630 | if (r < 0) |
631 | return r; | |
632 | } else { | |
633 | ||
634 | /* In the --user instance there's no sysinit.target, | |
635 | * in that case require basic.target instead. */ | |
636 | ||
35d8c19a | 637 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
cb4c247d LP |
638 | if (r < 0) |
639 | return r; | |
640 | } | |
641 | ||
642 | /* Second, if the rest of the base system is in the same | |
643 | * transaction, order us after it, but do not pull it in or | |
644 | * even require it. */ | |
35d8c19a | 645 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
fccd44ec KS |
646 | if (r < 0) |
647 | return r; | |
a40eb732 | 648 | |
cb4c247d | 649 | /* Third, add us in for normal shutdown. */ |
5a724170 | 650 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
a40eb732 LP |
651 | } |
652 | ||
4dfc092a LP |
653 | static void service_fix_output(Service *s) { |
654 | assert(s); | |
655 | ||
08f3be7a LP |
656 | /* If nothing has been explicitly configured, patch default output in. If input is socket/tty we avoid this |
657 | * however, since in that case we want output to default to the same place as we read input from. */ | |
4dfc092a LP |
658 | |
659 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
660 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
661 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 662 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
663 | |
664 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
665 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 666 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
08f3be7a LP |
667 | |
668 | if (s->exec_context.std_input == EXEC_INPUT_NULL && | |
669 | s->exec_context.stdin_data_size > 0) | |
670 | s->exec_context.std_input = EXEC_INPUT_DATA; | |
4dfc092a LP |
671 | } |
672 | ||
45f06b34 LP |
673 | static int service_setup_bus_name(Service *s) { |
674 | int r; | |
675 | ||
676 | assert(s); | |
677 | ||
678 | if (!s->bus_name) | |
679 | return 0; | |
680 | ||
35d8c19a | 681 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, true, UNIT_DEPENDENCY_FILE); |
222953e8 DR |
682 | if (r < 0) |
683 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); | |
45f06b34 | 684 | |
a132bef0 | 685 | /* We always want to be ordered against dbus.socket if both are in the transaction. */ |
35d8c19a | 686 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_DBUS_SOCKET, true, UNIT_DEPENDENCY_FILE); |
45f06b34 | 687 | if (r < 0) |
92bed462 | 688 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); |
45f06b34 LP |
689 | |
690 | r = unit_watch_bus_name(UNIT(s), s->bus_name); | |
691 | if (r == -EEXIST) | |
692 | return log_unit_error_errno(UNIT(s), r, "Two services allocated for the same bus name %s, refusing operation.", s->bus_name); | |
693 | if (r < 0) | |
694 | return log_unit_error_errno(UNIT(s), r, "Cannot watch bus name %s: %m", s->bus_name); | |
695 | ||
696 | return 0; | |
697 | } | |
698 | ||
8545f7ce LP |
699 | static int service_add_extras(Service *s) { |
700 | int r; | |
701 | ||
702 | assert(s); | |
703 | ||
704 | if (s->type == _SERVICE_TYPE_INVALID) { | |
705 | /* Figure out a type automatically */ | |
706 | if (s->bus_name) | |
707 | s->type = SERVICE_DBUS; | |
708 | else if (s->exec_command[SERVICE_EXEC_START]) | |
709 | s->type = SERVICE_SIMPLE; | |
710 | else | |
711 | s->type = SERVICE_ONESHOT; | |
712 | } | |
713 | ||
714 | /* Oneshot services have disabled start timeout by default */ | |
715 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
36c16a7c | 716 | s->timeout_start_usec = USEC_INFINITY; |
8545f7ce LP |
717 | |
718 | service_fix_output(s); | |
719 | ||
720 | r = unit_patch_contexts(UNIT(s)); | |
721 | if (r < 0) | |
722 | return r; | |
723 | ||
724 | r = unit_add_exec_dependencies(UNIT(s), &s->exec_context); | |
725 | if (r < 0) | |
726 | return r; | |
727 | ||
d79200e2 | 728 | r = unit_set_default_slice(UNIT(s)); |
8545f7ce LP |
729 | if (r < 0) |
730 | return r; | |
731 | ||
4330dc03 AJ |
732 | /* If the service needs the notify socket, let's enable it automatically. */ |
733 | if (s->notify_access == NOTIFY_NONE && | |
734 | (s->type == SERVICE_NOTIFY || s->watchdog_usec > 0 || s->n_fd_store_max > 0)) | |
8545f7ce LP |
735 | s->notify_access = NOTIFY_MAIN; |
736 | ||
afcfaa69 LP |
737 | /* If no OOM policy was explicitly set, then default to the configure default OOM policy. Except when |
738 | * delegation is on, in that case it we assume the payload knows better what to do and can process | |
5238e957 | 739 | * things in a more focused way. */ |
afcfaa69 LP |
740 | if (s->oom_policy < 0) |
741 | s->oom_policy = s->cgroup_context.delegate ? OOM_CONTINUE : UNIT(s)->manager->default_oom_policy; | |
742 | ||
743 | /* Let the kernel do the killing if that's requested. */ | |
744 | s->cgroup_context.memory_oom_group = s->oom_policy == OOM_KILL; | |
745 | ||
45f06b34 LP |
746 | r = service_add_default_dependencies(s); |
747 | if (r < 0) | |
748 | return r; | |
8545f7ce | 749 | |
45f06b34 LP |
750 | r = service_setup_bus_name(s); |
751 | if (r < 0) | |
752 | return r; | |
8545f7ce LP |
753 | |
754 | return 0; | |
755 | } | |
756 | ||
e537352b | 757 | static int service_load(Unit *u) { |
e537352b | 758 | Service *s = SERVICE(u); |
8bb2d17d | 759 | int r; |
e537352b | 760 | |
e0cfed4c | 761 | r = unit_load_fragment_and_dropin(u, true); |
c2756a68 | 762 | if (r < 0) |
5cb5a6ff LP |
763 | return r; |
764 | ||
e0cfed4c ZJS |
765 | if (u->load_state != UNIT_LOADED) |
766 | return 0; | |
034c6ed7 | 767 | |
23a177ef | 768 | /* This is a new unit? Then let's add in some extras */ |
e0cfed4c ZJS |
769 | r = service_add_extras(s); |
770 | if (r < 0) | |
771 | return r; | |
8e274523 | 772 | |
243b1432 | 773 | return service_verify(s); |
034c6ed7 LP |
774 | } |
775 | ||
87f0e418 | 776 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
4c2f5842 | 777 | char buf_restart[FORMAT_TIMESPAN_MAX], buf_start[FORMAT_TIMESPAN_MAX], buf_stop[FORMAT_TIMESPAN_MAX], |
12213aed | 778 | buf_runtime[FORMAT_TIMESPAN_MAX], buf_watchdog[FORMAT_TIMESPAN_MAX], buf_abort[FORMAT_TIMESPAN_MAX]; |
5cb5a6ff | 779 | ServiceExecCommand c; |
87f0e418 | 780 | Service *s = SERVICE(u); |
47be870b | 781 | const char *prefix2; |
5cb5a6ff LP |
782 | |
783 | assert(s); | |
784 | ||
4c940960 | 785 | prefix = strempty(prefix); |
63c372cb | 786 | prefix2 = strjoina(prefix, "\t"); |
44d8db9e | 787 | |
5cb5a6ff | 788 | fprintf(f, |
81a2b7ce | 789 | "%sService State: %s\n" |
f42806df LP |
790 | "%sResult: %s\n" |
791 | "%sReload Result: %s\n" | |
4c2f5842 | 792 | "%sClean Result: %s\n" |
81a2b7ce | 793 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 794 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 795 | "%sRemainAfterExit: %s\n" |
3185a36b | 796 | "%sGuessMainPID: %s\n" |
c952c6ec | 797 | "%sType: %s\n" |
2cf3143a | 798 | "%sRestart: %s\n" |
308d72dc | 799 | "%sNotifyAccess: %s\n" |
afcfaa69 LP |
800 | "%sNotifyState: %s\n" |
801 | "%sOOMPolicy: %s\n", | |
81a2b7ce | 802 | prefix, service_state_to_string(s->state), |
f42806df LP |
803 | prefix, service_result_to_string(s->result), |
804 | prefix, service_result_to_string(s->reload_result), | |
4c2f5842 | 805 | prefix, service_result_to_string(s->clean_result), |
81a2b7ce | 806 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 807 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 808 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 809 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 810 | prefix, service_type_to_string(s->type), |
2cf3143a | 811 | prefix, service_restart_to_string(s->restart), |
308d72dc | 812 | prefix, notify_access_to_string(s->notify_access), |
afcfaa69 LP |
813 | prefix, notify_state_to_string(s->notify_state), |
814 | prefix, oom_policy_to_string(s->oom_policy)); | |
5cb5a6ff | 815 | |
70123e68 LP |
816 | if (s->control_pid > 0) |
817 | fprintf(f, | |
ccd06097 ZJS |
818 | "%sControl PID: "PID_FMT"\n", |
819 | prefix, s->control_pid); | |
70123e68 LP |
820 | |
821 | if (s->main_pid > 0) | |
822 | fprintf(f, | |
ccd06097 | 823 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
824 | "%sMain PID Known: %s\n" |
825 | "%sMain PID Alien: %s\n", | |
ccd06097 | 826 | prefix, s->main_pid, |
6dfa5494 LP |
827 | prefix, yes_no(s->main_pid_known), |
828 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 829 | |
034c6ed7 LP |
830 | if (s->pid_file) |
831 | fprintf(f, | |
832 | "%sPIDFile: %s\n", | |
833 | prefix, s->pid_file); | |
834 | ||
05e343b7 LP |
835 | if (s->bus_name) |
836 | fprintf(f, | |
837 | "%sBusName: %s\n" | |
838 | "%sBus Name Good: %s\n", | |
839 | prefix, s->bus_name, | |
840 | prefix, yes_no(s->bus_name_good)); | |
841 | ||
9dfb64f8 ZJS |
842 | if (UNIT_ISSET(s->accept_socket)) |
843 | fprintf(f, | |
844 | "%sAccept Socket: %s\n", | |
845 | prefix, UNIT_DEREF(s->accept_socket)->id); | |
846 | ||
c9d41699 YW |
847 | fprintf(f, |
848 | "%sRestartSec: %s\n" | |
849 | "%sTimeoutStartSec: %s\n" | |
dcab85be | 850 | "%sTimeoutStopSec: %s\n", |
c9d41699 YW |
851 | prefix, format_timespan(buf_restart, sizeof(buf_restart), s->restart_usec, USEC_PER_SEC), |
852 | prefix, format_timespan(buf_start, sizeof(buf_start), s->timeout_start_usec, USEC_PER_SEC), | |
dcab85be YW |
853 | prefix, format_timespan(buf_stop, sizeof(buf_stop), s->timeout_stop_usec, USEC_PER_SEC)); |
854 | ||
855 | if (s->timeout_abort_set) | |
856 | fprintf(f, | |
857 | "%sTimeoutAbortSec: %s\n", | |
858 | prefix, format_timespan(buf_abort, sizeof(buf_abort), s->timeout_abort_usec, USEC_PER_SEC)); | |
859 | ||
860 | fprintf(f, | |
861 | "%sRuntimeMaxSec: %s\n" | |
862 | "%sWatchdogSec: %s\n", | |
c9d41699 YW |
863 | prefix, format_timespan(buf_runtime, sizeof(buf_runtime), s->runtime_max_usec, USEC_PER_SEC), |
864 | prefix, format_timespan(buf_watchdog, sizeof(buf_watchdog), s->watchdog_usec, USEC_PER_SEC)); | |
865 | ||
4819ff03 | 866 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
867 | exec_context_dump(&s->exec_context, f, prefix); |
868 | ||
e537352b | 869 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 870 | |
44d8db9e LP |
871 | if (!s->exec_command[c]) |
872 | continue; | |
873 | ||
40d50879 | 874 | fprintf(f, "%s-> %s:\n", |
94f04347 | 875 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
876 | |
877 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 878 | } |
44d8db9e | 879 | |
8c47c732 LP |
880 | if (s->status_text) |
881 | fprintf(f, "%sStatus Text: %s\n", | |
882 | prefix, s->status_text); | |
a354329f | 883 | |
ece174c5 | 884 | if (s->n_fd_store_max > 0) |
a354329f LP |
885 | fprintf(f, |
886 | "%sFile Descriptor Store Max: %u\n" | |
da6053d0 | 887 | "%sFile Descriptor Store Current: %zu\n", |
a354329f LP |
888 | prefix, s->n_fd_store_max, |
889 | prefix, s->n_fd_store); | |
18f573aa | 890 | |
bc0623df | 891 | cgroup_context_dump(UNIT(s), f, prefix); |
5cb5a6ff LP |
892 | } |
893 | ||
db256aab LP |
894 | static int service_is_suitable_main_pid(Service *s, pid_t pid, int prio) { |
895 | Unit *owner; | |
896 | ||
897 | assert(s); | |
898 | assert(pid_is_valid(pid)); | |
899 | ||
900 | /* Checks whether the specified PID is suitable as main PID for this service. returns negative if not, 0 if the | |
901 | * PID is questionnable but should be accepted if the source of configuration is trusted. > 0 if the PID is | |
902 | * good */ | |
903 | ||
904 | if (pid == getpid_cached() || pid == 1) { | |
905 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" is the manager, refusing.", pid); | |
906 | return -EPERM; | |
907 | } | |
908 | ||
909 | if (pid == s->control_pid) { | |
910 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" is the control process, refusing.", pid); | |
911 | return -EPERM; | |
912 | } | |
913 | ||
914 | if (!pid_is_alive(pid)) { | |
915 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" does not exist or is a zombie.", pid); | |
916 | return -ESRCH; | |
917 | } | |
918 | ||
919 | owner = manager_get_unit_by_pid(UNIT(s)->manager, pid); | |
920 | if (owner == UNIT(s)) { | |
921 | log_unit_debug(UNIT(s), "New main PID "PID_FMT" belongs to service, we are happy.", pid); | |
922 | return 1; /* Yay, it's definitely a good PID */ | |
923 | } | |
924 | ||
925 | return 0; /* Hmm it's a suspicious PID, let's accept it if configuration source is trusted */ | |
926 | } | |
927 | ||
c5419d42 | 928 | static int service_load_pid_file(Service *s, bool may_warn) { |
db256aab | 929 | char procfs[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
73969ab6 | 930 | bool questionable_pid_file = false; |
7fd1b19b | 931 | _cleanup_free_ char *k = NULL; |
db256aab LP |
932 | _cleanup_close_ int fd = -1; |
933 | int r, prio; | |
5925dd3c | 934 | pid_t pid; |
034c6ed7 LP |
935 | |
936 | assert(s); | |
937 | ||
034c6ed7 | 938 | if (!s->pid_file) |
13230d5d | 939 | return -ENOENT; |
034c6ed7 | 940 | |
db256aab LP |
941 | prio = may_warn ? LOG_INFO : LOG_DEBUG; |
942 | ||
a5648b80 ZJS |
943 | r = chase_symlinks(s->pid_file, NULL, CHASE_SAFE, NULL, &fd); |
944 | if (r == -ENOLINK) { | |
945 | log_unit_full(UNIT(s), LOG_DEBUG, r, | |
946 | "Potentially unsafe symlink chain, will now retry with relaxed checks: %s", s->pid_file); | |
73969ab6 LP |
947 | |
948 | questionable_pid_file = true; | |
949 | ||
a5648b80 | 950 | r = chase_symlinks(s->pid_file, NULL, 0, NULL, &fd); |
73969ab6 | 951 | } |
a5648b80 ZJS |
952 | if (r < 0) |
953 | return log_unit_full(UNIT(s), prio, fd, | |
954 | "Can't open PID file %s (yet?) after %s: %m", s->pid_file, service_state_to_string(s->state)); | |
db256aab | 955 | |
a5648b80 ZJS |
956 | /* Let's read the PID file now that we chased it down. But we need to convert the O_PATH fd |
957 | * chase_symlinks() returned us into a proper fd first. */ | |
db256aab LP |
958 | xsprintf(procfs, "/proc/self/fd/%i", fd); |
959 | r = read_one_line_file(procfs, &k); | |
960 | if (r < 0) | |
a5648b80 ZJS |
961 | return log_unit_error_errno(UNIT(s), r, |
962 | "Can't convert PID files %s O_PATH file descriptor to proper file descriptor: %m", | |
963 | s->pid_file); | |
034c6ed7 | 964 | |
5925dd3c | 965 | r = parse_pid(k, &pid); |
db256aab LP |
966 | if (r < 0) |
967 | return log_unit_full(UNIT(s), prio, r, "Failed to parse PID from file %s: %m", s->pid_file); | |
968 | ||
969 | if (s->main_pid_known && pid == s->main_pid) | |
970 | return 0; | |
971 | ||
972 | r = service_is_suitable_main_pid(s, pid, prio); | |
973 | if (r < 0) | |
5925dd3c | 974 | return r; |
db256aab LP |
975 | if (r == 0) { |
976 | struct stat st; | |
406eaf93 | 977 | |
73969ab6 LP |
978 | if (questionable_pid_file) { |
979 | log_unit_error(UNIT(s), "Refusing to accept PID outside of service control group, acquired through unsafe symlink chain: %s", s->pid_file); | |
980 | return -EPERM; | |
981 | } | |
982 | ||
db256aab LP |
983 | /* Hmm, it's not clear if the new main PID is safe. Let's allow this if the PID file is owned by root */ |
984 | ||
985 | if (fstat(fd, &st) < 0) | |
986 | return log_unit_error_errno(UNIT(s), errno, "Failed to fstat() PID file O_PATH fd: %m"); | |
987 | ||
988 | if (st.st_uid != 0) { | |
989 | 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); | |
990 | return -EPERM; | |
991 | } | |
992 | ||
993 | 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 |
994 | } |
995 | ||
db01f8b3 | 996 | if (s->main_pid_known) { |
f2341e0a | 997 | log_unit_debug(UNIT(s), "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
8bb2d17d | 998 | |
db01f8b3 MS |
999 | service_unwatch_main_pid(s); |
1000 | s->main_pid_known = false; | |
3a111838 | 1001 | } else |
f2341e0a | 1002 | log_unit_debug(UNIT(s), "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 1003 | |
117dcc57 ZJS |
1004 | r = service_set_main_pid(s, pid); |
1005 | if (r < 0) | |
16f6025e LP |
1006 | return r; |
1007 | ||
f75f613d | 1008 | r = unit_watch_pid(UNIT(s), pid, false); |
e8b509d3 LP |
1009 | if (r < 0) /* FIXME: we need to do something here */ |
1010 | return log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", pid); | |
034c6ed7 | 1011 | |
db256aab | 1012 | return 1; |
034c6ed7 LP |
1013 | } |
1014 | ||
783e05d6 | 1015 | static void service_search_main_pid(Service *s) { |
efdb0237 | 1016 | pid_t pid = 0; |
4fbf50b3 LP |
1017 | int r; |
1018 | ||
1019 | assert(s); | |
1020 | ||
3185a36b LP |
1021 | /* If we know it anyway, don't ever fallback to unreliable |
1022 | * heuristics */ | |
4fbf50b3 | 1023 | if (s->main_pid_known) |
783e05d6 | 1024 | return; |
4fbf50b3 | 1025 | |
3185a36b | 1026 | if (!s->guess_main_pid) |
783e05d6 | 1027 | return; |
3185a36b | 1028 | |
4fbf50b3 LP |
1029 | assert(s->main_pid <= 0); |
1030 | ||
783e05d6 ZJS |
1031 | if (unit_search_main_pid(UNIT(s), &pid) < 0) |
1032 | return; | |
4fbf50b3 | 1033 | |
f2341e0a | 1034 | log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid); |
783e05d6 ZJS |
1035 | if (service_set_main_pid(s, pid) < 0) |
1036 | return; | |
4fbf50b3 | 1037 | |
f75f613d | 1038 | r = unit_watch_pid(UNIT(s), pid, false); |
783e05d6 | 1039 | if (r < 0) |
4fbf50b3 | 1040 | /* FIXME: we need to do something here */ |
f2341e0a | 1041 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", pid); |
4fbf50b3 LP |
1042 | } |
1043 | ||
034c6ed7 LP |
1044 | static void service_set_state(Service *s, ServiceState state) { |
1045 | ServiceState old_state; | |
e056b01d | 1046 | const UnitActiveState *table; |
842129f5 | 1047 | |
5cb5a6ff LP |
1048 | assert(s); |
1049 | ||
6fcbec6f LP |
1050 | if (s->state != state) |
1051 | bus_unit_send_pending_change_signal(UNIT(s), false); | |
1052 | ||
e056b01d LP |
1053 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
1054 | ||
034c6ed7 | 1055 | old_state = s->state; |
5cb5a6ff | 1056 | s->state = state; |
034c6ed7 | 1057 | |
3a111838 MS |
1058 | service_unwatch_pid_file(s); |
1059 | ||
842129f5 | 1060 | if (!IN_SET(state, |
31cd5f63 | 1061 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
36c16a7c | 1062 | SERVICE_RUNNING, |
842129f5 | 1063 | SERVICE_RELOAD, |
c87700a1 | 1064 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 | 1065 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
4c2f5842 LP |
1066 | SERVICE_AUTO_RESTART, |
1067 | SERVICE_CLEANING)) | |
718db961 | 1068 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 1069 | |
842129f5 LP |
1070 | if (!IN_SET(state, |
1071 | SERVICE_START, SERVICE_START_POST, | |
1072 | SERVICE_RUNNING, SERVICE_RELOAD, | |
c87700a1 | 1073 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf108e55 | 1074 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 1075 | service_unwatch_main_pid(s); |
867b3b7d LP |
1076 | s->main_command = NULL; |
1077 | } | |
034c6ed7 | 1078 | |
842129f5 | 1079 | if (!IN_SET(state, |
31cd5f63 | 1080 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
842129f5 | 1081 | SERVICE_RELOAD, |
c87700a1 | 1082 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 LP |
1083 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
1084 | SERVICE_CLEANING)) { | |
5e94833f | 1085 | service_unwatch_control_pid(s); |
034c6ed7 | 1086 | s->control_command = NULL; |
a16e1123 | 1087 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 1088 | } |
034c6ed7 | 1089 | |
50be4f4a | 1090 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) { |
a911bb9a | 1091 | unit_unwatch_all_pids(UNIT(s)); |
50be4f4a LP |
1092 | unit_dequeue_rewatch_pids(UNIT(s)); |
1093 | } | |
a911bb9a | 1094 | |
842129f5 | 1095 | if (!IN_SET(state, |
31cd5f63 | 1096 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
842129f5 | 1097 | SERVICE_RUNNING, SERVICE_RELOAD, |
c87700a1 | 1098 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
57614eb1 | 1099 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && |
5cc3985e | 1100 | !(state == SERVICE_DEAD && UNIT(s)->job)) |
4f2d528d LP |
1101 | service_close_socket_fd(s); |
1102 | ||
5686391b LP |
1103 | if (state != SERVICE_START) |
1104 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
1105 | ||
7596e9e1 | 1106 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
1107 | service_stop_watchdog(s); |
1108 | ||
f6023656 LP |
1109 | /* For the inactive states unit_notify() will trim the cgroup, |
1110 | * but for exit we have to do that ourselves... */ | |
2c289ea8 | 1111 | if (state == SERVICE_EXITED && !MANAGER_IS_RELOADING(UNIT(s)->manager)) |
efdb0237 | 1112 | unit_prune_cgroup(UNIT(s)); |
f6023656 | 1113 | |
e537352b | 1114 | if (old_state != state) |
f2341e0a | 1115 | log_unit_debug(UNIT(s), "Changed %s -> %s", service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 1116 | |
2ad2e41a LP |
1117 | unit_notify(UNIT(s), table[old_state], table[state], |
1118 | (s->reload_result == SERVICE_SUCCESS ? 0 : UNIT_NOTIFY_RELOAD_FAILURE) | | |
31cd5f63 AZ |
1119 | (s->will_auto_restart ? UNIT_NOTIFY_WILL_AUTO_RESTART : 0) | |
1120 | (s->result == SERVICE_SKIP_CONDITION ? UNIT_NOTIFY_SKIP_CONDITION : 0)); | |
034c6ed7 LP |
1121 | } |
1122 | ||
36c16a7c LP |
1123 | static usec_t service_coldplug_timeout(Service *s) { |
1124 | assert(s); | |
1125 | ||
1126 | switch (s->deserialized_state) { | |
1127 | ||
31cd5f63 | 1128 | case SERVICE_CONDITION: |
36c16a7c LP |
1129 | case SERVICE_START_PRE: |
1130 | case SERVICE_START: | |
1131 | case SERVICE_START_POST: | |
1132 | case SERVICE_RELOAD: | |
1133 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_start_usec); | |
1134 | ||
1135 | case SERVICE_RUNNING: | |
1136 | return usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec); | |
1137 | ||
1138 | case SERVICE_STOP: | |
36c16a7c LP |
1139 | case SERVICE_STOP_SIGTERM: |
1140 | case SERVICE_STOP_SIGKILL: | |
1141 | case SERVICE_STOP_POST: | |
1142 | case SERVICE_FINAL_SIGTERM: | |
1143 | case SERVICE_FINAL_SIGKILL: | |
1144 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_stop_usec); | |
1145 | ||
dc653bf4 JK |
1146 | case SERVICE_STOP_WATCHDOG: |
1147 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, service_timeout_abort_usec(s)); | |
1148 | ||
36c16a7c LP |
1149 | case SERVICE_AUTO_RESTART: |
1150 | return usec_add(UNIT(s)->inactive_enter_timestamp.monotonic, s->restart_usec); | |
1151 | ||
4c2f5842 | 1152 | case SERVICE_CLEANING: |
12213aed | 1153 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->exec_context.timeout_clean_usec); |
4c2f5842 | 1154 | |
36c16a7c LP |
1155 | default: |
1156 | return USEC_INFINITY; | |
1157 | } | |
1158 | } | |
1159 | ||
be847e82 | 1160 | static int service_coldplug(Unit *u) { |
a16e1123 LP |
1161 | Service *s = SERVICE(u); |
1162 | int r; | |
1163 | ||
1164 | assert(s); | |
1165 | assert(s->state == SERVICE_DEAD); | |
1166 | ||
930d2838 LP |
1167 | if (s->deserialized_state == s->state) |
1168 | return 0; | |
6c12b52e | 1169 | |
36c16a7c LP |
1170 | r = service_arm_timer(s, service_coldplug_timeout(s)); |
1171 | if (r < 0) | |
1172 | return r; | |
a911bb9a | 1173 | |
930d2838 LP |
1174 | if (s->main_pid > 0 && |
1175 | pid_is_unwaited(s->main_pid) && | |
9acac212 | 1176 | (IN_SET(s->deserialized_state, |
930d2838 LP |
1177 | SERVICE_START, SERVICE_START_POST, |
1178 | SERVICE_RUNNING, SERVICE_RELOAD, | |
c87700a1 | 1179 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
930d2838 | 1180 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { |
f75f613d | 1181 | r = unit_watch_pid(UNIT(s), s->main_pid, false); |
930d2838 LP |
1182 | if (r < 0) |
1183 | return r; | |
1184 | } | |
bb242b7b | 1185 | |
930d2838 LP |
1186 | if (s->control_pid > 0 && |
1187 | pid_is_unwaited(s->control_pid) && | |
1188 | IN_SET(s->deserialized_state, | |
31cd5f63 | 1189 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
930d2838 | 1190 | SERVICE_RELOAD, |
c87700a1 | 1191 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 LP |
1192 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
1193 | SERVICE_CLEANING)) { | |
f75f613d | 1194 | r = unit_watch_pid(UNIT(s), s->control_pid, false); |
930d2838 LP |
1195 | if (r < 0) |
1196 | return r; | |
a16e1123 | 1197 | } |
92c1622e | 1198 | |
4c2f5842 | 1199 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART, SERVICE_CLEANING)) { |
50be4f4a | 1200 | (void) unit_enqueue_rewatch_pids(u); |
29206d46 | 1201 | (void) unit_setup_dynamic_creds(u); |
e8a565cb YW |
1202 | (void) unit_setup_exec_runtime(u); |
1203 | } | |
29206d46 | 1204 | |
50be4f4a LP |
1205 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
1206 | service_start_watchdog(s); | |
1207 | ||
3ebcd323 ZJS |
1208 | if (UNIT_ISSET(s->accept_socket)) { |
1209 | Socket* socket = SOCKET(UNIT_DEREF(s->accept_socket)); | |
1210 | ||
1211 | if (socket->max_connections_per_source > 0) { | |
1212 | SocketPeer *peer; | |
1213 | ||
1214 | /* Make a best-effort attempt at bumping the connection count */ | |
1215 | if (socket_acquire_peer(socket, s->socket_fd, &peer) > 0) { | |
1216 | socket_peer_unref(s->peer); | |
1217 | s->peer = peer; | |
1218 | } | |
1219 | } | |
1220 | } | |
1221 | ||
930d2838 | 1222 | service_set_state(s, s->deserialized_state); |
a16e1123 LP |
1223 | return 0; |
1224 | } | |
1225 | ||
25b583d7 LP |
1226 | static int service_collect_fds( |
1227 | Service *s, | |
1228 | int **fds, | |
1229 | char ***fd_names, | |
1230 | size_t *n_socket_fds, | |
1231 | size_t *n_storage_fds) { | |
4c47affc | 1232 | |
8dd4c05b | 1233 | _cleanup_strv_free_ char **rfd_names = NULL; |
a354329f | 1234 | _cleanup_free_ int *rfds = NULL; |
25b583d7 | 1235 | size_t rn_socket_fds = 0, rn_storage_fds = 0; |
4c47affc | 1236 | int r; |
44d8db9e LP |
1237 | |
1238 | assert(s); | |
1239 | assert(fds); | |
8dd4c05b | 1240 | assert(fd_names); |
9b141911 | 1241 | assert(n_socket_fds); |
25b583d7 | 1242 | assert(n_storage_fds); |
44d8db9e | 1243 | |
8dd4c05b | 1244 | if (s->socket_fd >= 0) { |
6cf6bbc2 | 1245 | |
8dd4c05b | 1246 | /* Pass the per-connection socket */ |
57020a3a | 1247 | |
8dd4c05b LP |
1248 | rfds = new(int, 1); |
1249 | if (!rfds) | |
1250 | return -ENOMEM; | |
1251 | rfds[0] = s->socket_fd; | |
57020a3a | 1252 | |
bea1a013 | 1253 | rfd_names = strv_new("connection"); |
8dd4c05b LP |
1254 | if (!rfd_names) |
1255 | return -ENOMEM; | |
44d8db9e | 1256 | |
4c47affc | 1257 | rn_socket_fds = 1; |
8dd4c05b LP |
1258 | } else { |
1259 | Iterator i; | |
eef85c4a | 1260 | void *v; |
8dd4c05b | 1261 | Unit *u; |
44d8db9e | 1262 | |
8dd4c05b | 1263 | /* Pass all our configured sockets for singleton services */ |
44d8db9e | 1264 | |
eef85c4a | 1265 | HASHMAP_FOREACH_KEY(v, u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
8dd4c05b LP |
1266 | _cleanup_free_ int *cfds = NULL; |
1267 | Socket *sock; | |
1268 | int cn_fds; | |
44d8db9e | 1269 | |
8dd4c05b LP |
1270 | if (u->type != UNIT_SOCKET) |
1271 | continue; | |
44d8db9e | 1272 | |
8dd4c05b | 1273 | sock = SOCKET(u); |
a354329f | 1274 | |
8dd4c05b LP |
1275 | cn_fds = socket_collect_fds(sock, &cfds); |
1276 | if (cn_fds < 0) | |
1277 | return cn_fds; | |
44d8db9e | 1278 | |
8dd4c05b LP |
1279 | if (cn_fds <= 0) |
1280 | continue; | |
79c7626d | 1281 | |
8dd4c05b | 1282 | if (!rfds) { |
1cc6c93a | 1283 | rfds = TAKE_PTR(cfds); |
4c47affc | 1284 | rn_socket_fds = cn_fds; |
8dd4c05b LP |
1285 | } else { |
1286 | int *t; | |
1287 | ||
62d74c78 | 1288 | t = reallocarray(rfds, rn_socket_fds + cn_fds, sizeof(int)); |
8dd4c05b LP |
1289 | if (!t) |
1290 | return -ENOMEM; | |
1291 | ||
4c47affc | 1292 | memcpy(t + rn_socket_fds, cfds, cn_fds * sizeof(int)); |
8dd4c05b LP |
1293 | |
1294 | rfds = t; | |
4c47affc | 1295 | rn_socket_fds += cn_fds; |
8dd4c05b LP |
1296 | } |
1297 | ||
1298 | r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds); | |
1299 | if (r < 0) | |
1300 | return r; | |
44d8db9e LP |
1301 | } |
1302 | } | |
1303 | ||
a354329f LP |
1304 | if (s->n_fd_store > 0) { |
1305 | ServiceFDStore *fs; | |
25b583d7 | 1306 | size_t n_fds; |
8dd4c05b | 1307 | char **nl; |
a354329f LP |
1308 | int *t; |
1309 | ||
62d74c78 | 1310 | t = reallocarray(rfds, rn_socket_fds + s->n_fd_store, sizeof(int)); |
a354329f LP |
1311 | if (!t) |
1312 | return -ENOMEM; | |
1313 | ||
1314 | rfds = t; | |
8dd4c05b | 1315 | |
62d74c78 | 1316 | nl = reallocarray(rfd_names, rn_socket_fds + s->n_fd_store + 1, sizeof(char *)); |
8dd4c05b LP |
1317 | if (!nl) |
1318 | return -ENOMEM; | |
1319 | ||
1320 | rfd_names = nl; | |
4c47affc | 1321 | n_fds = rn_socket_fds; |
8dd4c05b LP |
1322 | |
1323 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
4c47affc FB |
1324 | rfds[n_fds] = fs->fd; |
1325 | rfd_names[n_fds] = strdup(strempty(fs->fdname)); | |
1326 | if (!rfd_names[n_fds]) | |
8dd4c05b LP |
1327 | return -ENOMEM; |
1328 | ||
4c47affc FB |
1329 | rn_storage_fds++; |
1330 | n_fds++; | |
8dd4c05b LP |
1331 | } |
1332 | ||
4c47affc | 1333 | rfd_names[n_fds] = NULL; |
a354329f LP |
1334 | } |
1335 | ||
1cc6c93a YW |
1336 | *fds = TAKE_PTR(rfds); |
1337 | *fd_names = TAKE_PTR(rfd_names); | |
9b141911 | 1338 | *n_socket_fds = rn_socket_fds; |
4c47affc | 1339 | *n_storage_fds = rn_storage_fds; |
3e33402a | 1340 | |
4c47affc | 1341 | return 0; |
44d8db9e LP |
1342 | } |
1343 | ||
5686391b LP |
1344 | static int service_allocate_exec_fd_event_source( |
1345 | Service *s, | |
1346 | int fd, | |
1347 | sd_event_source **ret_event_source) { | |
1348 | ||
1349 | _cleanup_(sd_event_source_unrefp) sd_event_source *source = NULL; | |
1350 | int r; | |
1351 | ||
1352 | assert(s); | |
1353 | assert(fd >= 0); | |
1354 | assert(ret_event_source); | |
1355 | ||
1356 | r = sd_event_add_io(UNIT(s)->manager->event, &source, fd, 0, service_dispatch_exec_io, s); | |
1357 | if (r < 0) | |
1358 | return log_unit_error_errno(UNIT(s), r, "Failed to allocate exec_fd event source: %m"); | |
1359 | ||
1360 | /* This is a bit lower priority than SIGCHLD, as that carries a lot more interesting failure information */ | |
1361 | ||
1362 | r = sd_event_source_set_priority(source, SD_EVENT_PRIORITY_NORMAL-3); | |
1363 | if (r < 0) | |
1364 | return log_unit_error_errno(UNIT(s), r, "Failed to adjust priority of exec_fd event source: %m"); | |
1365 | ||
1366 | (void) sd_event_source_set_description(source, "service event_fd"); | |
1367 | ||
1368 | r = sd_event_source_set_io_fd_own(source, true); | |
1369 | if (r < 0) | |
1370 | return log_unit_error_errno(UNIT(s), r, "Failed to pass ownership of fd to event source: %m"); | |
1371 | ||
1372 | *ret_event_source = TAKE_PTR(source); | |
1373 | return 0; | |
1374 | } | |
1375 | ||
1376 | static int service_allocate_exec_fd( | |
1377 | Service *s, | |
1378 | sd_event_source **ret_event_source, | |
1379 | int* ret_exec_fd) { | |
1380 | ||
1381 | _cleanup_close_pair_ int p[2] = { -1, -1 }; | |
1382 | int r; | |
1383 | ||
1384 | assert(s); | |
1385 | assert(ret_event_source); | |
1386 | assert(ret_exec_fd); | |
1387 | ||
1388 | if (pipe2(p, O_CLOEXEC|O_NONBLOCK) < 0) | |
1389 | return log_unit_error_errno(UNIT(s), errno, "Failed to allocate exec_fd pipe: %m"); | |
1390 | ||
1391 | r = service_allocate_exec_fd_event_source(s, p[0], ret_event_source); | |
1392 | if (r < 0) | |
1393 | return r; | |
1394 | ||
1395 | p[0] = -1; | |
1396 | *ret_exec_fd = TAKE_FD(p[1]); | |
1397 | ||
1398 | return 0; | |
1399 | } | |
1400 | ||
6375bd20 JW |
1401 | static bool service_exec_needs_notify_socket(Service *s, ExecFlags flags) { |
1402 | assert(s); | |
1403 | ||
1404 | /* Notifications are accepted depending on the process and | |
1405 | * the access setting of the service: | |
1406 | * process: \ access: NONE MAIN EXEC ALL | |
1407 | * main no yes yes yes | |
1408 | * control no no yes yes | |
1409 | * other (forked) no no no yes */ | |
1410 | ||
1411 | if (flags & EXEC_IS_CONTROL) | |
1412 | /* A control process */ | |
1413 | return IN_SET(s->notify_access, NOTIFY_EXEC, NOTIFY_ALL); | |
1414 | ||
1415 | /* We only spawn main processes and control processes, so any | |
1416 | * process that is not a control process is a main process */ | |
1417 | return s->notify_access != NOTIFY_NONE; | |
1418 | } | |
1419 | ||
81a2b7ce LP |
1420 | static int service_spawn( |
1421 | Service *s, | |
1422 | ExecCommand *c, | |
21b2ce39 | 1423 | usec_t timeout, |
c39f1ce2 | 1424 | ExecFlags flags, |
81a2b7ce LP |
1425 | pid_t *_pid) { |
1426 | ||
b9c04eaf | 1427 | _cleanup_(exec_params_clear) ExecParameters exec_params = { |
c39f1ce2 LP |
1428 | .flags = flags, |
1429 | .stdin_fd = -1, | |
1430 | .stdout_fd = -1, | |
1431 | .stderr_fd = -1, | |
25b583d7 | 1432 | .exec_fd = -1, |
9fa95f85 | 1433 | }; |
3c7416b6 | 1434 | _cleanup_strv_free_ char **final_env = NULL, **our_env = NULL, **fd_names = NULL; |
5686391b | 1435 | _cleanup_(sd_event_source_unrefp) sd_event_source *exec_fd_source = NULL; |
25b583d7 | 1436 | size_t n_socket_fds = 0, n_storage_fds = 0, n_env = 0; |
5686391b | 1437 | _cleanup_close_ int exec_fd = -1; |
3c7416b6 LP |
1438 | _cleanup_free_ int *fds = NULL; |
1439 | pid_t pid; | |
8dd4c05b LP |
1440 | int r; |
1441 | ||
034c6ed7 LP |
1442 | assert(s); |
1443 | assert(c); | |
1444 | assert(_pid); | |
1445 | ||
78f93209 | 1446 | r = unit_prepare_exec(UNIT(s)); /* This realizes the cgroup, among other things */ |
3c7416b6 LP |
1447 | if (r < 0) |
1448 | return r; | |
1449 | ||
9c1a61ad LP |
1450 | if (flags & EXEC_IS_CONTROL) { |
1451 | /* If this is a control process, mask the permissions/chroot application if this is requested. */ | |
1452 | if (s->permissions_start_only) | |
1703fa41 | 1453 | exec_params.flags &= ~EXEC_APPLY_SANDBOXING; |
9c1a61ad LP |
1454 | if (s->root_directory_start_only) |
1455 | exec_params.flags &= ~EXEC_APPLY_CHROOT; | |
1456 | } | |
1457 | ||
c39f1ce2 | 1458 | if ((flags & EXEC_PASS_FDS) || |
6cf6bbc2 LP |
1459 | s->exec_context.std_input == EXEC_INPUT_SOCKET || |
1460 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1461 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1462 | ||
25b583d7 | 1463 | r = service_collect_fds(s, &fds, &fd_names, &n_socket_fds, &n_storage_fds); |
8dd4c05b | 1464 | if (r < 0) |
36c16a7c | 1465 | return r; |
6cf6bbc2 | 1466 | |
25b583d7 | 1467 | log_unit_debug(UNIT(s), "Passing %zu fds to service", n_socket_fds + n_storage_fds); |
4f2d528d | 1468 | } |
44d8db9e | 1469 | |
5686391b LP |
1470 | if (!FLAGS_SET(flags, EXEC_IS_CONTROL) && s->type == SERVICE_EXEC) { |
1471 | assert(!s->exec_fd_event_source); | |
1472 | ||
1473 | r = service_allocate_exec_fd(s, &exec_fd_source, &exec_fd); | |
1474 | if (r < 0) | |
1475 | return r; | |
1476 | } | |
1477 | ||
36c16a7c LP |
1478 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), timeout)); |
1479 | if (r < 0) | |
1480 | return r; | |
034c6ed7 | 1481 | |
dcf3c3c3 | 1482 | our_env = new0(char*, 10); |
36c16a7c LP |
1483 | if (!our_env) |
1484 | return -ENOMEM; | |
c952c6ec | 1485 | |
6375bd20 | 1486 | if (service_exec_needs_notify_socket(s, flags)) |
36c16a7c LP |
1487 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) |
1488 | return -ENOMEM; | |
c952c6ec | 1489 | |
2105e76a | 1490 | if (s->main_pid > 0) |
36c16a7c LP |
1491 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) |
1492 | return -ENOMEM; | |
2105e76a | 1493 | |
c39f1ce2 | 1494 | if (MANAGER_IS_USER(UNIT(s)->manager)) |
df0ff127 | 1495 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid_cached()) < 0) |
36c16a7c | 1496 | return -ENOMEM; |
97ae63e2 | 1497 | |
dcf3c3c3 LP |
1498 | if (s->pid_file) |
1499 | if (asprintf(our_env + n_env++, "PIDFILE=%s", s->pid_file) < 0) | |
1500 | return -ENOMEM; | |
1501 | ||
8dd4c05b | 1502 | if (s->socket_fd >= 0) { |
3b1c5241 SL |
1503 | union sockaddr_union sa; |
1504 | socklen_t salen = sizeof(sa); | |
1505 | ||
f56e7bfe LP |
1506 | /* If this is a per-connection service instance, let's set $REMOTE_ADDR and $REMOTE_PORT to something |
1507 | * useful. Note that we do this only when we are still connected at this point in time, which we might | |
1508 | * very well not be. Hence we ignore all errors when retrieving peer information (as that might result | |
1509 | * in ENOTCONN), and just use whate we can use. */ | |
f2dbd059 | 1510 | |
f56e7bfe LP |
1511 | if (getpeername(s->socket_fd, &sa.sa, &salen) >= 0 && |
1512 | IN_SET(sa.sa.sa_family, AF_INET, AF_INET6, AF_VSOCK)) { | |
3b1c5241 | 1513 | |
3b1c5241 SL |
1514 | _cleanup_free_ char *addr = NULL; |
1515 | char *t; | |
882ac6e7 | 1516 | unsigned port; |
3b1c5241 SL |
1517 | |
1518 | r = sockaddr_pretty(&sa.sa, salen, true, false, &addr); | |
1519 | if (r < 0) | |
36c16a7c | 1520 | return r; |
3b1c5241 | 1521 | |
b910cc72 | 1522 | t = strjoin("REMOTE_ADDR=", addr); |
36c16a7c LP |
1523 | if (!t) |
1524 | return -ENOMEM; | |
3b1c5241 SL |
1525 | our_env[n_env++] = t; |
1526 | ||
882ac6e7 SH |
1527 | r = sockaddr_port(&sa.sa, &port); |
1528 | if (r < 0) | |
1529 | return r; | |
3b1c5241 | 1530 | |
36c16a7c LP |
1531 | if (asprintf(&t, "REMOTE_PORT=%u", port) < 0) |
1532 | return -ENOMEM; | |
3b1c5241 SL |
1533 | our_env[n_env++] = t; |
1534 | } | |
1535 | } | |
1536 | ||
136dc4c4 LP |
1537 | if (flags & EXEC_SETENV_RESULT) { |
1538 | if (asprintf(our_env + n_env++, "SERVICE_RESULT=%s", service_result_to_string(s->result)) < 0) | |
1539 | return -ENOMEM; | |
1540 | ||
1541 | if (s->main_exec_status.pid > 0 && | |
1542 | dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { | |
1543 | if (asprintf(our_env + n_env++, "EXIT_CODE=%s", sigchld_code_to_string(s->main_exec_status.code)) < 0) | |
1544 | return -ENOMEM; | |
1545 | ||
1546 | if (s->main_exec_status.code == CLD_EXITED) | |
1547 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%i", s->main_exec_status.status); | |
1548 | else | |
1549 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%s", signal_to_string(s->main_exec_status.status)); | |
1550 | if (r < 0) | |
1551 | return -ENOMEM; | |
1552 | } | |
1553 | } | |
1554 | ||
1ad6e8b3 LP |
1555 | r = unit_set_exec_params(UNIT(s), &exec_params); |
1556 | if (r < 0) | |
1557 | return r; | |
3536f49e YW |
1558 | |
1559 | final_env = strv_env_merge(2, exec_params.environment, our_env, NULL); | |
36c16a7c LP |
1560 | if (!final_env) |
1561 | return -ENOMEM; | |
c952c6ec | 1562 | |
ac647978 LP |
1563 | /* System D-Bus needs nss-systemd disabled, so that we don't deadlock */ |
1564 | SET_FLAG(exec_params.flags, EXEC_NSS_BYPASS_BUS, | |
1565 | MANAGER_IS_SYSTEM(UNIT(s)->manager) && unit_has_name(UNIT(s), SPECIAL_DBUS_SERVICE)); | |
4ad49000 | 1566 | |
b9c04eaf | 1567 | strv_free_and_replace(exec_params.environment, final_env); |
9fa95f85 | 1568 | exec_params.fds = fds; |
8dd4c05b | 1569 | exec_params.fd_names = fd_names; |
9b141911 | 1570 | exec_params.n_socket_fds = n_socket_fds; |
25b583d7 | 1571 | exec_params.n_storage_fds = n_storage_fds; |
34b3f625 | 1572 | exec_params.watchdog_usec = service_get_watchdog_usec(s); |
a34ceba6 | 1573 | exec_params.selinux_context_net = s->socket_fd_selinux_context_net; |
9fa95f85 DM |
1574 | if (s->type == SERVICE_IDLE) |
1575 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
a34ceba6 LP |
1576 | exec_params.stdin_fd = s->stdin_fd; |
1577 | exec_params.stdout_fd = s->stdout_fd; | |
1578 | exec_params.stderr_fd = s->stderr_fd; | |
5686391b | 1579 | exec_params.exec_fd = exec_fd; |
9fa95f85 | 1580 | |
f2341e0a LP |
1581 | r = exec_spawn(UNIT(s), |
1582 | c, | |
9e2f7c11 | 1583 | &s->exec_context, |
9fa95f85 | 1584 | &exec_params, |
613b411c | 1585 | s->exec_runtime, |
29206d46 | 1586 | &s->dynamic_creds, |
9e2f7c11 | 1587 | &pid); |
9e2f7c11 | 1588 | if (r < 0) |
36c16a7c | 1589 | return r; |
034c6ed7 | 1590 | |
5686391b LP |
1591 | s->exec_fd_event_source = TAKE_PTR(exec_fd_source); |
1592 | s->exec_fd_hot = false; | |
1593 | ||
f75f613d FB |
1594 | r = unit_watch_pid(UNIT(s), pid, true); |
1595 | if (r < 0) | |
36c16a7c | 1596 | return r; |
034c6ed7 LP |
1597 | |
1598 | *_pid = pid; | |
1599 | ||
5cb5a6ff | 1600 | return 0; |
034c6ed7 LP |
1601 | } |
1602 | ||
80876c20 LP |
1603 | static int main_pid_good(Service *s) { |
1604 | assert(s); | |
1605 | ||
51894d70 | 1606 | /* Returns 0 if the pid is dead, > 0 if it is good, < 0 if we don't know */ |
80876c20 | 1607 | |
fc08079e | 1608 | /* If we know the pid file, then let's just check if it is |
80876c20 | 1609 | * still valid */ |
6dfa5494 LP |
1610 | if (s->main_pid_known) { |
1611 | ||
1612 | /* If it's an alien child let's check if it is still | |
1613 | * alive ... */ | |
62220cf7 | 1614 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1615 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1616 | |
1617 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1618 | * which we really should wait for to collect exit | |
1619 | * status and code */ | |
80876c20 | 1620 | return s->main_pid > 0; |
6dfa5494 | 1621 | } |
80876c20 LP |
1622 | |
1623 | /* We don't know the pid */ | |
1624 | return -EAGAIN; | |
1625 | } | |
1626 | ||
019be286 | 1627 | static int control_pid_good(Service *s) { |
80876c20 LP |
1628 | assert(s); |
1629 | ||
07697d7e LP |
1630 | /* Returns 0 if the control PID is dead, > 0 if it is good. We never actually return < 0 here, but in order to |
1631 | * make this function as similar as possible to main_pid_good() and cgroup_good(), we pretend that < 0 also | |
1632 | * means: we can't figure it out. */ | |
1633 | ||
80876c20 LP |
1634 | return s->control_pid > 0; |
1635 | } | |
1636 | ||
1637 | static int cgroup_good(Service *s) { | |
1638 | int r; | |
1639 | ||
1640 | assert(s); | |
1641 | ||
07697d7e LP |
1642 | /* Returns 0 if the cgroup is empty or doesn't exist, > 0 if it is exists and is populated, < 0 if we can't |
1643 | * figure it out */ | |
1644 | ||
4ad49000 LP |
1645 | if (!UNIT(s)->cgroup_path) |
1646 | return 0; | |
1647 | ||
6f883237 | 1648 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path); |
117dcc57 | 1649 | if (r < 0) |
80876c20 LP |
1650 | return r; |
1651 | ||
b13ddbbc | 1652 | return r == 0; |
80876c20 LP |
1653 | } |
1654 | ||
ebc57b89 | 1655 | static bool service_shall_restart(Service *s, const char **reason) { |
a509f0e6 LP |
1656 | assert(s); |
1657 | ||
1658 | /* Don't restart after manual stops */ | |
ebc57b89 ZJS |
1659 | if (s->forbid_restart) { |
1660 | *reason = "manual stop"; | |
a509f0e6 | 1661 | return false; |
ebc57b89 | 1662 | } |
a509f0e6 LP |
1663 | |
1664 | /* Never restart if this is configured as special exception */ | |
ebc57b89 ZJS |
1665 | if (exit_status_set_test(&s->restart_prevent_status, s->main_exec_status.code, s->main_exec_status.status)) { |
1666 | *reason = "prevented by exit status"; | |
a509f0e6 | 1667 | return false; |
ebc57b89 | 1668 | } |
a509f0e6 LP |
1669 | |
1670 | /* Restart if the exit code/status are configured as restart triggers */ | |
ebc57b89 ZJS |
1671 | if (exit_status_set_test(&s->restart_force_status, s->main_exec_status.code, s->main_exec_status.status)) { |
1672 | *reason = "forced by exit status"; | |
a509f0e6 | 1673 | return true; |
ebc57b89 | 1674 | } |
a509f0e6 | 1675 | |
ebc57b89 | 1676 | *reason = "restart setting"; |
a509f0e6 LP |
1677 | switch (s->restart) { |
1678 | ||
1679 | case SERVICE_RESTART_NO: | |
1680 | return false; | |
1681 | ||
1682 | case SERVICE_RESTART_ALWAYS: | |
1683 | return true; | |
1684 | ||
1685 | case SERVICE_RESTART_ON_SUCCESS: | |
1686 | return s->result == SERVICE_SUCCESS; | |
1687 | ||
1688 | case SERVICE_RESTART_ON_FAILURE: | |
1689 | return s->result != SERVICE_SUCCESS; | |
1690 | ||
1691 | case SERVICE_RESTART_ON_ABNORMAL: | |
1692 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE); | |
1693 | ||
1694 | case SERVICE_RESTART_ON_WATCHDOG: | |
1695 | return s->result == SERVICE_FAILURE_WATCHDOG; | |
1696 | ||
1697 | case SERVICE_RESTART_ON_ABORT: | |
1698 | return IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP); | |
1699 | ||
1700 | default: | |
1701 | assert_not_reached("unknown restart setting"); | |
1702 | } | |
1703 | } | |
1704 | ||
deb4e708 MK |
1705 | static bool service_will_restart(Unit *u) { |
1706 | Service *s = SERVICE(u); | |
1707 | ||
53f47dfc YW |
1708 | assert(s); |
1709 | ||
deb4e708 MK |
1710 | if (s->will_auto_restart) |
1711 | return true; | |
53f47dfc YW |
1712 | if (s->state == SERVICE_AUTO_RESTART) |
1713 | return true; | |
2ad2e41a | 1714 | |
52a12341 | 1715 | return unit_will_restart_default(u); |
53f47dfc YW |
1716 | } |
1717 | ||
f42806df | 1718 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
31cd5f63 | 1719 | ServiceState end_state; |
034c6ed7 | 1720 | int r; |
0f52f8e5 | 1721 | |
034c6ed7 LP |
1722 | assert(s); |
1723 | ||
0f52f8e5 LP |
1724 | /* If there's a stop job queued before we enter the DEAD state, we shouldn't act on Restart=, in order to not |
1725 | * undo what has already been enqueued. */ | |
1726 | if (unit_stop_pending(UNIT(s))) | |
1727 | allow_restart = false; | |
1728 | ||
a0fef983 | 1729 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1730 | s->result = f; |
034c6ed7 | 1731 | |
31cd5f63 AZ |
1732 | if (s->result == SERVICE_SUCCESS) { |
1733 | unit_log_success(UNIT(s)); | |
1734 | end_state = SERVICE_DEAD; | |
1735 | } else if (s->result == SERVICE_SKIP_CONDITION) { | |
1736 | unit_log_skip(UNIT(s), service_result_to_string(s->result)); | |
1737 | end_state = SERVICE_DEAD; | |
1738 | } else { | |
1739 | unit_log_failure(UNIT(s), service_result_to_string(s->result)); | |
1740 | end_state = SERVICE_FAILED; | |
1741 | } | |
ed77d407 | 1742 | |
ebc57b89 ZJS |
1743 | if (!allow_restart) |
1744 | log_unit_debug(UNIT(s), "Service restart not allowed."); | |
1745 | else { | |
1746 | const char *reason; | |
1747 | bool shall_restart; | |
1748 | ||
1749 | shall_restart = service_shall_restart(s, &reason); | |
1750 | log_unit_debug(UNIT(s), "Service will %srestart (%s)", | |
1751 | shall_restart ? "" : "not ", | |
1752 | reason); | |
1753 | if (shall_restart) | |
1754 | s->will_auto_restart = true; | |
1755 | } | |
deb4e708 | 1756 | |
7eb2a8a1 LP |
1757 | /* Make sure service_release_resources() doesn't destroy our FD store, while we are changing through |
1758 | * SERVICE_FAILED/SERVICE_DEAD before entering into SERVICE_AUTO_RESTART. */ | |
1759 | s->n_keep_fd_store ++; | |
1760 | ||
31cd5f63 | 1761 | service_set_state(s, end_state); |
0c7f15b3 | 1762 | |
deb4e708 MK |
1763 | if (s->will_auto_restart) { |
1764 | s->will_auto_restart = false; | |
034c6ed7 | 1765 | |
36c16a7c | 1766 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
7eb2a8a1 LP |
1767 | if (r < 0) { |
1768 | s->n_keep_fd_store--; | |
034c6ed7 | 1769 | goto fail; |
7eb2a8a1 | 1770 | } |
034c6ed7 LP |
1771 | |
1772 | service_set_state(s, SERVICE_AUTO_RESTART); | |
7a0019d3 LP |
1773 | } else |
1774 | /* If we shan't restart, then flush out the restart counter. But don't do that immediately, so that the | |
1775 | * user can still introspect the counter. Do so on the next start. */ | |
1776 | s->flush_n_restarts = true; | |
034c6ed7 | 1777 | |
5238e957 | 1778 | /* 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 |
1779 | * queue, so that the fd store is possibly gc'ed again */ |
1780 | s->n_keep_fd_store--; | |
1781 | unit_add_to_gc_queue(UNIT(s)); | |
1782 | ||
f2341e0a | 1783 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1784 | s->forbid_restart = false; |
1785 | ||
e66cf1a3 | 1786 | /* We want fresh tmpdirs in case service is started again immediately */ |
e8a565cb | 1787 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, true); |
c17ec25e | 1788 | |
95939aed YW |
1789 | /* Also, remove the runtime directory */ |
1790 | unit_destroy_runtime_directory(UNIT(s), &s->exec_context); | |
e66cf1a3 | 1791 | |
00d9ef85 LP |
1792 | /* Get rid of the IPC bits of the user */ |
1793 | unit_unref_uid_gid(UNIT(s), true); | |
1794 | ||
29206d46 LP |
1795 | /* Release the user, and destroy it if we are the only remaining owner */ |
1796 | dynamic_creds_destroy(&s->dynamic_creds); | |
1797 | ||
9285c9ff LN |
1798 | /* Try to delete the pid file. At this point it will be |
1799 | * out-of-date, and some software might be confused by it, so | |
1800 | * let's remove it. */ | |
1801 | if (s->pid_file) | |
fabab190 | 1802 | (void) unlink(s->pid_file); |
9285c9ff | 1803 | |
6f765baf LP |
1804 | /* Reset TTY ownership if necessary */ |
1805 | exec_context_revert_tty(&s->exec_context); | |
1806 | ||
034c6ed7 LP |
1807 | return; |
1808 | ||
1809 | fail: | |
f2341e0a | 1810 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1811 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1812 | } |
1813 | ||
f42806df | 1814 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1815 | int r; |
1816 | assert(s); | |
1817 | ||
a0fef983 | 1818 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1819 | s->result = f; |
034c6ed7 | 1820 | |
5e94833f | 1821 | service_unwatch_control_pid(s); |
50be4f4a | 1822 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
5e94833f | 1823 | |
117dcc57 ZJS |
1824 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1825 | if (s->control_command) { | |
867b3b7d LP |
1826 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1827 | ||
ecedd90f LP |
1828 | r = service_spawn(s, |
1829 | s->control_command, | |
21b2ce39 | 1830 | s->timeout_stop_usec, |
78f93209 | 1831 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
1832 | &s->control_pid); |
1833 | if (r < 0) | |
034c6ed7 LP |
1834 | goto fail; |
1835 | ||
80876c20 LP |
1836 | service_set_state(s, SERVICE_STOP_POST); |
1837 | } else | |
ac84d1fb | 1838 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1839 | |
1840 | return; | |
1841 | ||
1842 | fail: | |
f2341e0a | 1843 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1844 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1845 | } |
1846 | ||
a232ebcc | 1847 | static int state_to_kill_operation(Service *s, ServiceState state) { |
4940c0b0 LP |
1848 | switch (state) { |
1849 | ||
c87700a1 AZ |
1850 | case SERVICE_STOP_WATCHDOG: |
1851 | return KILL_WATCHDOG; | |
4940c0b0 LP |
1852 | |
1853 | case SERVICE_STOP_SIGTERM: | |
a232ebcc ZJS |
1854 | if (unit_has_job_type(UNIT(s), JOB_RESTART)) |
1855 | return KILL_RESTART; | |
1856 | _fallthrough_; | |
1857 | ||
4940c0b0 LP |
1858 | case SERVICE_FINAL_SIGTERM: |
1859 | return KILL_TERMINATE; | |
1860 | ||
1861 | case SERVICE_STOP_SIGKILL: | |
1862 | case SERVICE_FINAL_SIGKILL: | |
1863 | return KILL_KILL; | |
1864 | ||
1865 | default: | |
1866 | return _KILL_OPERATION_INVALID; | |
1867 | } | |
1868 | } | |
1869 | ||
f42806df | 1870 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1871 | int r; |
034c6ed7 LP |
1872 | |
1873 | assert(s); | |
1874 | ||
a0fef983 | 1875 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1876 | s->result = f; |
034c6ed7 | 1877 | |
50be4f4a LP |
1878 | /* Before sending any signal, make sure we track all members of this cgroup */ |
1879 | (void) unit_watch_all_pids(UNIT(s)); | |
1880 | ||
1881 | /* Also, enqueue a job that we recheck all our PIDs a bit later, given that it's likely some processes have | |
1882 | * died now */ | |
1883 | (void) unit_enqueue_rewatch_pids(UNIT(s)); | |
a911bb9a | 1884 | |
cd2086fe LP |
1885 | r = unit_kill_context( |
1886 | UNIT(s), | |
1887 | &s->kill_context, | |
a232ebcc | 1888 | state_to_kill_operation(s, state), |
cd2086fe LP |
1889 | s->main_pid, |
1890 | s->control_pid, | |
1891 | s->main_pid_alien); | |
1892 | if (r < 0) | |
1893 | goto fail; | |
034c6ed7 | 1894 | |
cd2086fe | 1895 | if (r > 0) { |
dc653bf4 JK |
1896 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), |
1897 | state == SERVICE_STOP_WATCHDOG ? service_timeout_abort_usec(s) : s->timeout_stop_usec)); | |
36c16a7c LP |
1898 | if (r < 0) |
1899 | goto fail; | |
d6ea93e3 | 1900 | |
80876c20 | 1901 | service_set_state(s, state); |
c87700a1 | 1902 | } else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1903 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
c87700a1 | 1904 | else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1905 | service_enter_stop_post(s, SERVICE_SUCCESS); |
1db0db4b | 1906 | else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb | 1907 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 1908 | else |
f42806df | 1909 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1910 | |
1911 | return; | |
1912 | ||
1913 | fail: | |
f2341e0a | 1914 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 1915 | |
c87700a1 | 1916 | if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1917 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1918 | else |
f42806df | 1919 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1920 | } |
1921 | ||
308d72dc LP |
1922 | static void service_enter_stop_by_notify(Service *s) { |
1923 | assert(s); | |
1924 | ||
50be4f4a | 1925 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
308d72dc | 1926 | |
36c16a7c | 1927 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
308d72dc | 1928 | |
6041a7ee MS |
1929 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
1930 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
1931 | } |
1932 | ||
f42806df | 1933 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1934 | int r; |
5925dd3c | 1935 | |
034c6ed7 LP |
1936 | assert(s); |
1937 | ||
a0fef983 | 1938 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1939 | s->result = f; |
034c6ed7 | 1940 | |
5e94833f | 1941 | service_unwatch_control_pid(s); |
50be4f4a | 1942 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
5e94833f | 1943 | |
117dcc57 ZJS |
1944 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1945 | if (s->control_command) { | |
867b3b7d LP |
1946 | s->control_command_id = SERVICE_EXEC_STOP; |
1947 | ||
ecedd90f LP |
1948 | r = service_spawn(s, |
1949 | s->control_command, | |
21b2ce39 | 1950 | s->timeout_stop_usec, |
78f93209 | 1951 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
1952 | &s->control_pid); |
1953 | if (r < 0) | |
034c6ed7 LP |
1954 | goto fail; |
1955 | ||
80876c20 LP |
1956 | service_set_state(s, SERVICE_STOP); |
1957 | } else | |
f42806df | 1958 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1959 | |
1960 | return; | |
1961 | ||
1962 | fail: | |
f2341e0a | 1963 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 1964 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1965 | } |
1966 | ||
957c3cf9 LP |
1967 | static bool service_good(Service *s) { |
1968 | int main_pid_ok; | |
1969 | assert(s); | |
1970 | ||
1971 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
1972 | return false; | |
1973 | ||
1974 | main_pid_ok = main_pid_good(s); | |
1975 | if (main_pid_ok > 0) /* It's alive */ | |
1976 | return true; | |
1977 | if (main_pid_ok == 0) /* It's dead */ | |
1978 | return false; | |
1979 | ||
1980 | /* OK, we don't know anything about the main PID, maybe | |
1981 | * because there is none. Let's check the control group | |
1982 | * instead. */ | |
1983 | ||
1984 | return cgroup_good(s) != 0; | |
1985 | } | |
1986 | ||
f42806df | 1987 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
1988 | assert(s); |
1989 | ||
a0fef983 | 1990 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1991 | s->result = f; |
80876c20 | 1992 | |
089b64d5 LP |
1993 | service_unwatch_control_pid(s); |
1994 | ||
ec5b1452 LP |
1995 | if (s->result != SERVICE_SUCCESS) |
1996 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
1997 | else if (service_good(s)) { | |
308d72dc | 1998 | |
ec5b1452 | 1999 | /* If there are any queued up sd_notify() notifications, process them now */ |
308d72dc LP |
2000 | if (s->notify_state == NOTIFY_RELOADING) |
2001 | service_enter_reload_by_notify(s); | |
2002 | else if (s->notify_state == NOTIFY_STOPPING) | |
2003 | service_enter_stop_by_notify(s); | |
36c16a7c | 2004 | else { |
308d72dc | 2005 | service_set_state(s, SERVICE_RUNNING); |
36c16a7c LP |
2006 | service_arm_timer(s, usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec)); |
2007 | } | |
308d72dc | 2008 | |
ec5b1452 | 2009 | } else if (s->remain_after_exit) |
80876c20 LP |
2010 | service_set_state(s, SERVICE_EXITED); |
2011 | else | |
f42806df | 2012 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
2013 | } |
2014 | ||
034c6ed7 LP |
2015 | static void service_enter_start_post(Service *s) { |
2016 | int r; | |
2017 | assert(s); | |
2018 | ||
5e94833f | 2019 | service_unwatch_control_pid(s); |
842129f5 | 2020 | service_reset_watchdog(s); |
bb242b7b | 2021 | |
117dcc57 ZJS |
2022 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
2023 | if (s->control_command) { | |
867b3b7d LP |
2024 | s->control_command_id = SERVICE_EXEC_START_POST; |
2025 | ||
ecedd90f LP |
2026 | r = service_spawn(s, |
2027 | s->control_command, | |
21b2ce39 | 2028 | s->timeout_start_usec, |
78f93209 | 2029 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
2030 | &s->control_pid); |
2031 | if (r < 0) | |
034c6ed7 LP |
2032 | goto fail; |
2033 | ||
80876c20 LP |
2034 | service_set_state(s, SERVICE_START_POST); |
2035 | } else | |
f42806df | 2036 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2037 | |
2038 | return; | |
2039 | ||
2040 | fail: | |
f2341e0a | 2041 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 2042 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2043 | } |
2044 | ||
e9a4f676 | 2045 | static void service_kill_control_process(Service *s) { |
a6951a50 | 2046 | int r; |
4ad49000 | 2047 | |
a6951a50 LP |
2048 | assert(s); |
2049 | ||
e9a4f676 LP |
2050 | if (s->control_pid <= 0) |
2051 | return; | |
4ad49000 | 2052 | |
e9a4f676 LP |
2053 | r = kill_and_sigcont(s->control_pid, SIGKILL); |
2054 | if (r < 0) { | |
2055 | _cleanup_free_ char *comm = NULL; | |
a6951a50 | 2056 | |
e9a4f676 | 2057 | (void) get_process_comm(s->control_pid, &comm); |
a6951a50 | 2058 | |
e9a4f676 LP |
2059 | log_unit_debug_errno(UNIT(s), r, "Failed to kill control process " PID_FMT " (%s), ignoring: %m", |
2060 | s->control_pid, strna(comm)); | |
a6951a50 | 2061 | } |
4ad49000 LP |
2062 | } |
2063 | ||
c53d2d54 DB |
2064 | static int service_adverse_to_leftover_processes(Service *s) { |
2065 | assert(s); | |
2066 | ||
2067 | /* KillMode=mixed and control group are used to indicate that all process should be killed off. | |
2068 | * SendSIGKILL is used for services that require a clean shutdown. These are typically database | |
2069 | * service where a SigKilled process would result in a lengthy recovery and who's shutdown or | |
2070 | * startup time is quite variable (so Timeout settings aren't of use). | |
2071 | * | |
2072 | * Here we take these two factors and refuse to start a service if there are existing processes | |
2073 | * within a control group. Databases, while generally having some protection against multiple | |
2074 | * instances running, lets not stress the rigor of these. Also ExecStartPre parts of the service | |
2075 | * aren't as rigoriously written to protect aganst against multiple use. */ | |
2076 | if (unit_warn_leftover_processes(UNIT(s)) && | |
2077 | IN_SET(s->kill_context.kill_mode, KILL_MIXED, KILL_CONTROL_GROUP) && | |
569554d9 ZJS |
2078 | !s->kill_context.send_sigkill) |
2079 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(EBUSY), | |
2080 | "Will not start SendSIGKILL=no service of type KillMode=control-group or mixed while processes exist"); | |
2081 | ||
c53d2d54 DB |
2082 | return 0; |
2083 | } | |
2084 | ||
034c6ed7 | 2085 | static void service_enter_start(Service *s) { |
4ad49000 | 2086 | ExecCommand *c; |
36c16a7c | 2087 | usec_t timeout; |
034c6ed7 LP |
2088 | pid_t pid; |
2089 | int r; | |
2090 | ||
2091 | assert(s); | |
2092 | ||
41efeaec LP |
2093 | service_unwatch_control_pid(s); |
2094 | service_unwatch_main_pid(s); | |
80876c20 | 2095 | |
c53d2d54 DB |
2096 | r = service_adverse_to_leftover_processes(s); |
2097 | if (r < 0) | |
2098 | goto fail; | |
a4634b21 | 2099 | |
867b3b7d LP |
2100 | if (s->type == SERVICE_FORKING) { |
2101 | s->control_command_id = SERVICE_EXEC_START; | |
2102 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
2103 | ||
2104 | s->main_command = NULL; | |
2105 | } else { | |
2106 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2107 | s->control_command = NULL; | |
2108 | ||
2109 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
2110 | } | |
34e9ba66 | 2111 | |
96fb8242 | 2112 | if (!c) { |
47fffb35 LP |
2113 | if (s->type != SERVICE_ONESHOT) { |
2114 | /* There's no command line configured for the main command? Hmm, that is strange. This can only | |
2115 | * happen if the configuration changes at runtime. In this case, let's enter a failure | |
2116 | * state. */ | |
b8b846d7 | 2117 | log_unit_error(UNIT(s), "There's no 'start' task anymore we could start."); |
47fffb35 LP |
2118 | r = -ENXIO; |
2119 | goto fail; | |
2120 | } | |
2121 | ||
ef5ae8e7 ZJS |
2122 | /* We force a fake state transition here. Otherwise, the unit would go directly from |
2123 | * SERVICE_DEAD to SERVICE_DEAD without SERVICE_ACTIVATING or SERVICE_ACTIVE | |
5238e957 | 2124 | * in between. This way we can later trigger actions that depend on the state |
ef5ae8e7 ZJS |
2125 | * transition, including SuccessAction=. */ |
2126 | service_set_state(s, SERVICE_START); | |
2127 | ||
96fb8242 LP |
2128 | service_enter_start_post(s); |
2129 | return; | |
2130 | } | |
2131 | ||
36c16a7c LP |
2132 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) |
2133 | /* For simple + idle this is the main process. We don't apply any timeout here, but | |
2134 | * service_enter_running() will later apply the .runtime_max_usec timeout. */ | |
2135 | timeout = USEC_INFINITY; | |
2136 | else | |
2137 | timeout = s->timeout_start_usec; | |
2138 | ||
ecedd90f LP |
2139 | r = service_spawn(s, |
2140 | c, | |
36c16a7c | 2141 | timeout, |
1703fa41 | 2142 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
2143 | &pid); |
2144 | if (r < 0) | |
034c6ed7 LP |
2145 | goto fail; |
2146 | ||
36c16a7c | 2147 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) { |
034c6ed7 LP |
2148 | /* For simple services we immediately start |
2149 | * the START_POST binaries. */ | |
2150 | ||
5925dd3c | 2151 | service_set_main_pid(s, pid); |
034c6ed7 LP |
2152 | service_enter_start_post(s); |
2153 | ||
2154 | } else if (s->type == SERVICE_FORKING) { | |
2155 | ||
2156 | /* For forking services we wait until the start | |
2157 | * process exited. */ | |
2158 | ||
e55224ca | 2159 | s->control_pid = pid; |
80876c20 LP |
2160 | service_set_state(s, SERVICE_START); |
2161 | ||
5686391b | 2162 | } else if (IN_SET(s->type, SERVICE_ONESHOT, SERVICE_DBUS, SERVICE_NOTIFY, SERVICE_EXEC)) { |
7d55e835 | 2163 | |
5686391b | 2164 | /* For oneshot services we wait until the start process exited, too, but it is our main process. */ |
7d55e835 | 2165 | |
5686391b LP |
2166 | /* For D-Bus services we know the main pid right away, but wait for the bus name to appear on the |
2167 | * bus. 'notify' and 'exec' services are similar. */ | |
05e343b7 | 2168 | |
5925dd3c | 2169 | service_set_main_pid(s, pid); |
80876c20 | 2170 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
2171 | } else |
2172 | assert_not_reached("Unknown service type"); | |
2173 | ||
2174 | return; | |
2175 | ||
2176 | fail: | |
f2341e0a | 2177 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
c3fda31d | 2178 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2179 | } |
2180 | ||
2181 | static void service_enter_start_pre(Service *s) { | |
2182 | int r; | |
2183 | ||
2184 | assert(s); | |
2185 | ||
5e94833f LP |
2186 | service_unwatch_control_pid(s); |
2187 | ||
117dcc57 ZJS |
2188 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
2189 | if (s->control_command) { | |
8f53a7b8 | 2190 | |
c53d2d54 DB |
2191 | r = service_adverse_to_leftover_processes(s); |
2192 | if (r < 0) | |
2193 | goto fail; | |
a4634b21 | 2194 | |
867b3b7d LP |
2195 | s->control_command_id = SERVICE_EXEC_START_PRE; |
2196 | ||
ecedd90f LP |
2197 | r = service_spawn(s, |
2198 | s->control_command, | |
21b2ce39 | 2199 | s->timeout_start_usec, |
1703fa41 | 2200 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, |
ecedd90f LP |
2201 | &s->control_pid); |
2202 | if (r < 0) | |
034c6ed7 LP |
2203 | goto fail; |
2204 | ||
80876c20 LP |
2205 | service_set_state(s, SERVICE_START_PRE); |
2206 | } else | |
034c6ed7 LP |
2207 | service_enter_start(s); |
2208 | ||
2209 | return; | |
2210 | ||
2211 | fail: | |
f2341e0a | 2212 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 2213 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2214 | } |
2215 | ||
31cd5f63 AZ |
2216 | static void service_enter_condition(Service *s) { |
2217 | int r; | |
2218 | ||
2219 | assert(s); | |
2220 | ||
2221 | service_unwatch_control_pid(s); | |
2222 | ||
2223 | s->control_command = s->exec_command[SERVICE_EXEC_CONDITION]; | |
2224 | if (s->control_command) { | |
2225 | ||
2226 | r = service_adverse_to_leftover_processes(s); | |
2227 | if (r < 0) | |
2228 | goto fail; | |
2229 | ||
2230 | s->control_command_id = SERVICE_EXEC_CONDITION; | |
2231 | ||
2232 | r = service_spawn(s, | |
2233 | s->control_command, | |
2234 | s->timeout_start_usec, | |
2235 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, | |
2236 | &s->control_pid); | |
2237 | ||
2238 | if (r < 0) | |
2239 | goto fail; | |
2240 | ||
2241 | service_set_state(s, SERVICE_CONDITION); | |
2242 | } else | |
2243 | service_enter_start_pre(s); | |
2244 | ||
2245 | return; | |
2246 | ||
2247 | fail: | |
2248 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'exec-condition' task: %m"); | |
2249 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); | |
2250 | } | |
2251 | ||
034c6ed7 | 2252 | static void service_enter_restart(Service *s) { |
4afd3348 | 2253 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 2254 | int r; |
398ef8ba | 2255 | |
034c6ed7 LP |
2256 | assert(s); |
2257 | ||
28a2dfe8 | 2258 | if (unit_has_job_type(UNIT(s), JOB_STOP)) { |
a8bb2e65 | 2259 | /* Don't restart things if we are going down anyway */ |
f2341e0a | 2260 | log_unit_info(UNIT(s), "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 2261 | |
36c16a7c | 2262 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
a8bb2e65 | 2263 | if (r < 0) |
2edfa366 | 2264 | goto fail; |
feae8adb DW |
2265 | |
2266 | return; | |
2edfa366 LP |
2267 | } |
2268 | ||
48bb5876 DW |
2269 | /* Any units that are bound to this service must also be |
2270 | * restarted. We use JOB_RESTART (instead of the more obvious | |
2271 | * JOB_START) here so that those dependency jobs will be added | |
2272 | * as well. */ | |
50cbaba4 | 2273 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_REPLACE, NULL, &error, NULL); |
48bb5876 | 2274 | if (r < 0) |
034c6ed7 LP |
2275 | goto fail; |
2276 | ||
7a0019d3 LP |
2277 | /* Count the jobs we enqueue for restarting. This counter is maintained as long as the unit isn't fully |
2278 | * stopped, i.e. as long as it remains up or remains in auto-start states. The use can reset the counter | |
2279 | * explicitly however via the usual "systemctl reset-failure" logic. */ | |
2280 | s->n_restarts ++; | |
2281 | s->flush_n_restarts = false; | |
2282 | ||
2283 | log_struct(LOG_INFO, | |
2284 | "MESSAGE_ID=" SD_MESSAGE_UNIT_RESTART_SCHEDULED_STR, | |
2285 | LOG_UNIT_ID(UNIT(s)), | |
f1c50bec | 2286 | LOG_UNIT_INVOCATION_ID(UNIT(s)), |
7a0019d3 | 2287 | LOG_UNIT_MESSAGE(UNIT(s), "Scheduled restart job, restart counter is at %u.", s->n_restarts), |
a1230ff9 | 2288 | "N_RESTARTS=%u", s->n_restarts); |
7a0019d3 LP |
2289 | |
2290 | /* Notify clients about changed restart counter */ | |
2291 | unit_add_to_dbus_queue(UNIT(s)); | |
2292 | ||
a8bb2e65 LP |
2293 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
2294 | * it will be canceled as part of the service_stop() call that | |
2295 | * is executed as part of JOB_RESTART. */ | |
2296 | ||
034c6ed7 LP |
2297 | return; |
2298 | ||
2299 | fail: | |
f2341e0a | 2300 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, -r)); |
f42806df | 2301 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
2302 | } |
2303 | ||
308d72dc | 2304 | static void service_enter_reload_by_notify(Service *s) { |
15d167f8 JW |
2305 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
2306 | int r; | |
2307 | ||
308d72dc LP |
2308 | assert(s); |
2309 | ||
36c16a7c | 2310 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_start_usec)); |
308d72dc | 2311 | service_set_state(s, SERVICE_RELOAD); |
15d167f8 JW |
2312 | |
2313 | /* service_enter_reload_by_notify is never called during a reload, thus no loops are possible. */ | |
2314 | r = manager_propagate_reload(UNIT(s)->manager, UNIT(s), JOB_FAIL, &error); | |
2315 | if (r < 0) | |
2316 | log_unit_warning(UNIT(s), "Failed to schedule propagation of reload: %s", bus_error_message(&error, -r)); | |
308d72dc LP |
2317 | } |
2318 | ||
034c6ed7 LP |
2319 | static void service_enter_reload(Service *s) { |
2320 | int r; | |
2321 | ||
2322 | assert(s); | |
2323 | ||
5e94833f | 2324 | service_unwatch_control_pid(s); |
95c906ae | 2325 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 2326 | |
117dcc57 ZJS |
2327 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
2328 | if (s->control_command) { | |
867b3b7d LP |
2329 | s->control_command_id = SERVICE_EXEC_RELOAD; |
2330 | ||
ecedd90f LP |
2331 | r = service_spawn(s, |
2332 | s->control_command, | |
21b2ce39 | 2333 | s->timeout_start_usec, |
78f93209 | 2334 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
2335 | &s->control_pid); |
2336 | if (r < 0) | |
034c6ed7 LP |
2337 | goto fail; |
2338 | ||
80876c20 LP |
2339 | service_set_state(s, SERVICE_RELOAD); |
2340 | } else | |
f42806df | 2341 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2342 | |
2343 | return; | |
2344 | ||
2345 | fail: | |
f2341e0a | 2346 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
2347 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2348 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2349 | } |
2350 | ||
f42806df | 2351 | static void service_run_next_control(Service *s) { |
36c16a7c | 2352 | usec_t timeout; |
034c6ed7 LP |
2353 | int r; |
2354 | ||
2355 | assert(s); | |
2356 | assert(s->control_command); | |
2357 | assert(s->control_command->command_next); | |
2358 | ||
34e9ba66 | 2359 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2360 | |
34e9ba66 | 2361 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2362 | service_unwatch_control_pid(s); |
2363 | ||
31cd5f63 | 2364 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
36c16a7c LP |
2365 | timeout = s->timeout_start_usec; |
2366 | else | |
2367 | timeout = s->timeout_stop_usec; | |
2368 | ||
ecedd90f LP |
2369 | r = service_spawn(s, |
2370 | s->control_command, | |
36c16a7c | 2371 | timeout, |
1703fa41 | 2372 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL| |
31cd5f63 | 2373 | (IN_SET(s->control_command_id, SERVICE_EXEC_CONDITION, SERVICE_EXEC_START_PRE, SERVICE_EXEC_STOP_POST) ? EXEC_APPLY_TTY_STDIN : 0)| |
78f93209 LP |
2374 | (IN_SET(s->control_command_id, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST) ? EXEC_SETENV_RESULT : 0)| |
2375 | (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 |
2376 | &s->control_pid); |
2377 | if (r < 0) | |
034c6ed7 LP |
2378 | goto fail; |
2379 | ||
2380 | return; | |
2381 | ||
2382 | fail: | |
f2341e0a | 2383 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 2384 | |
31cd5f63 | 2385 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START_POST, SERVICE_STOP)) |
f42806df | 2386 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2387 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2388 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2389 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2390 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2391 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2392 | } else |
f42806df | 2393 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2394 | } |
2395 | ||
f42806df | 2396 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2397 | pid_t pid; |
2398 | int r; | |
2399 | ||
2400 | assert(s); | |
867b3b7d LP |
2401 | assert(s->main_command); |
2402 | assert(s->main_command->command_next); | |
2403 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2404 | |
867b3b7d | 2405 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2406 | service_unwatch_main_pid(s); |
2407 | ||
ecedd90f LP |
2408 | r = service_spawn(s, |
2409 | s->main_command, | |
21b2ce39 | 2410 | s->timeout_start_usec, |
1703fa41 | 2411 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
2412 | &pid); |
2413 | if (r < 0) | |
34e9ba66 LP |
2414 | goto fail; |
2415 | ||
2416 | service_set_main_pid(s, pid); | |
2417 | ||
2418 | return; | |
2419 | ||
2420 | fail: | |
f2341e0a | 2421 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 2422 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2423 | } |
2424 | ||
87f0e418 LP |
2425 | static int service_start(Unit *u) { |
2426 | Service *s = SERVICE(u); | |
07299350 | 2427 | int r; |
5cb5a6ff LP |
2428 | |
2429 | assert(s); | |
2430 | ||
034c6ed7 LP |
2431 | /* We cannot fulfill this request right now, try again later |
2432 | * please! */ | |
a00973af | 2433 | if (IN_SET(s->state, |
c87700a1 | 2434 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 | 2435 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, SERVICE_CLEANING)) |
5cb5a6ff LP |
2436 | return -EAGAIN; |
2437 | ||
034c6ed7 | 2438 | /* Already on it! */ |
31cd5f63 | 2439 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
2440 | return 0; |
2441 | ||
2e9d6c12 | 2442 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2443 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2444 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2445 | * service should be manually restarted, not started. We |
2446 | * simply return EAGAIN here, so that any start jobs stay | |
2447 | * queued, and assume that the auto restart timer will | |
2448 | * eventually trigger the restart. */ | |
2449 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2450 | return -EAGAIN; |
2e9d6c12 | 2451 | |
a00973af | 2452 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 2453 | |
07299350 | 2454 | /* Make sure we don't enter a busy loop of some kind. */ |
97a3f4ee | 2455 | r = unit_test_start_limit(u); |
07299350 LP |
2456 | if (r < 0) { |
2457 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT_HIT, false); | |
2458 | return r; | |
2459 | } | |
2460 | ||
4b58153d LP |
2461 | r = unit_acquire_invocation_id(u); |
2462 | if (r < 0) | |
2463 | return r; | |
2464 | ||
f42806df LP |
2465 | s->result = SERVICE_SUCCESS; |
2466 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2467 | s->main_pid_known = false; |
6dfa5494 | 2468 | s->main_pid_alien = false; |
47342320 | 2469 | s->forbid_restart = false; |
3c7416b6 | 2470 | |
a1e58e8e | 2471 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
2472 | s->status_errno = 0; |
2473 | ||
308d72dc LP |
2474 | s->notify_state = NOTIFY_UNKNOWN; |
2475 | ||
aa8c4bbf | 2476 | s->watchdog_original_usec = s->watchdog_usec; |
2787d83c | 2477 | s->watchdog_override_enable = false; |
aa8c4bbf | 2478 | s->watchdog_override_usec = USEC_INFINITY; |
2787d83c | 2479 | |
6a1d4d9f LP |
2480 | exec_command_reset_status_list_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
2481 | exec_status_reset(&s->main_exec_status); | |
2482 | ||
7a0019d3 LP |
2483 | /* This is not an automatic restart? Flush the restart counter then */ |
2484 | if (s->flush_n_restarts) { | |
2485 | s->n_restarts = 0; | |
2486 | s->flush_n_restarts = false; | |
2487 | } | |
2488 | ||
6a1d4d9f LP |
2489 | u->reset_accounting = true; |
2490 | ||
31cd5f63 | 2491 | service_enter_condition(s); |
82a2b6bb | 2492 | return 1; |
5cb5a6ff LP |
2493 | } |
2494 | ||
87f0e418 LP |
2495 | static int service_stop(Unit *u) { |
2496 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2497 | |
2498 | assert(s); | |
2499 | ||
a509f0e6 | 2500 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2501 | s->forbid_restart = true; |
034c6ed7 | 2502 | |
e537352b | 2503 | /* Already on it */ |
a00973af | 2504 | if (IN_SET(s->state, |
dc653bf4 | 2505 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
a00973af | 2506 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) |
e537352b LP |
2507 | return 0; |
2508 | ||
f0c7b229 | 2509 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2510 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2511 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2512 | return 0; |
2513 | } | |
2514 | ||
3f6c78dc LP |
2515 | /* If there's already something running we go directly into |
2516 | * kill mode. */ | |
31cd5f63 | 2517 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD, SERVICE_STOP_WATCHDOG)) { |
f42806df | 2518 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2519 | return 0; |
2520 | } | |
5cb5a6ff | 2521 | |
4c2f5842 LP |
2522 | /* If we are currently cleaning, then abort it, brutally. */ |
2523 | if (s->state == SERVICE_CLEANING) { | |
2524 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); | |
2525 | return 0; | |
2526 | } | |
2527 | ||
a00973af | 2528 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2529 | |
f42806df | 2530 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2531 | return 1; |
5cb5a6ff LP |
2532 | } |
2533 | ||
87f0e418 LP |
2534 | static int service_reload(Unit *u) { |
2535 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2536 | |
2537 | assert(s); | |
2538 | ||
3742095b | 2539 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
034c6ed7 LP |
2540 | |
2541 | service_enter_reload(s); | |
2d018ae2 | 2542 | return 1; |
5cb5a6ff LP |
2543 | } |
2544 | ||
44a6b1b6 | 2545 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2546 | Service *s = SERVICE(u); |
034c6ed7 LP |
2547 | |
2548 | assert(s); | |
2549 | ||
2550 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2551 | } | |
2552 | ||
e266c068 MS |
2553 | static unsigned service_exec_command_index(Unit *u, ServiceExecCommand id, ExecCommand *current) { |
2554 | Service *s = SERVICE(u); | |
2555 | unsigned idx = 0; | |
2556 | ExecCommand *first, *c; | |
2557 | ||
2558 | assert(s); | |
2559 | ||
2560 | first = s->exec_command[id]; | |
2561 | ||
2562 | /* Figure out where we are in the list by walking back to the beginning */ | |
2563 | for (c = current; c != first; c = c->command_prev) | |
2564 | idx++; | |
2565 | ||
2566 | return idx; | |
2567 | } | |
2568 | ||
2569 | static int service_serialize_exec_command(Unit *u, FILE *f, ExecCommand *command) { | |
d68c645b LP |
2570 | _cleanup_free_ char *args = NULL, *p = NULL; |
2571 | size_t allocated = 0, length = 0; | |
e266c068 | 2572 | Service *s = SERVICE(u); |
d68c645b | 2573 | const char *type, *key; |
e266c068 MS |
2574 | ServiceExecCommand id; |
2575 | unsigned idx; | |
e266c068 | 2576 | char **arg; |
e266c068 MS |
2577 | |
2578 | assert(s); | |
2579 | assert(f); | |
2580 | ||
2581 | if (!command) | |
2582 | return 0; | |
2583 | ||
2584 | if (command == s->control_command) { | |
2585 | type = "control"; | |
2586 | id = s->control_command_id; | |
2587 | } else { | |
2588 | type = "main"; | |
2589 | id = SERVICE_EXEC_START; | |
2590 | } | |
2591 | ||
2592 | idx = service_exec_command_index(u, id, command); | |
2593 | ||
2594 | STRV_FOREACH(arg, command->argv) { | |
e266c068 | 2595 | _cleanup_free_ char *e = NULL; |
d68c645b | 2596 | size_t n; |
e266c068 | 2597 | |
d68c645b | 2598 | e = cescape(*arg); |
e266c068 | 2599 | if (!e) |
d68c645b | 2600 | return log_oom(); |
e266c068 MS |
2601 | |
2602 | n = strlen(e); | |
334c0979 | 2603 | if (!GREEDY_REALLOC(args, allocated, length + 2 + n + 2)) |
d68c645b | 2604 | return log_oom(); |
e266c068 MS |
2605 | |
2606 | if (length > 0) | |
2607 | args[length++] = ' '; | |
2608 | ||
334c0979 | 2609 | args[length++] = '"'; |
e266c068 MS |
2610 | memcpy(args + length, e, n); |
2611 | length += n; | |
334c0979 | 2612 | args[length++] = '"'; |
e266c068 MS |
2613 | } |
2614 | ||
2615 | if (!GREEDY_REALLOC(args, allocated, length + 1)) | |
d68c645b LP |
2616 | return log_oom(); |
2617 | ||
e266c068 MS |
2618 | args[length++] = 0; |
2619 | ||
d68c645b | 2620 | p = cescape(command->path); |
e266c068 MS |
2621 | if (!p) |
2622 | return -ENOMEM; | |
2623 | ||
d68c645b LP |
2624 | key = strjoina(type, "-command"); |
2625 | return serialize_item_format(f, key, "%s %u %s %s", service_exec_command_to_string(id), idx, p, args); | |
e266c068 MS |
2626 | } |
2627 | ||
a16e1123 LP |
2628 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2629 | Service *s = SERVICE(u); | |
2339fc93 | 2630 | ServiceFDStore *fs; |
a34ceba6 | 2631 | int r; |
a16e1123 LP |
2632 | |
2633 | assert(u); | |
2634 | assert(f); | |
2635 | assert(fds); | |
2636 | ||
d68c645b LP |
2637 | (void) serialize_item(f, "state", service_state_to_string(s->state)); |
2638 | (void) serialize_item(f, "result", service_result_to_string(s->result)); | |
2639 | (void) serialize_item(f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2640 | |
2641 | if (s->control_pid > 0) | |
d68c645b | 2642 | (void) serialize_item_format(f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2643 | |
5925dd3c | 2644 | if (s->main_pid_known && s->main_pid > 0) |
d68c645b | 2645 | (void) serialize_item_format(f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 | 2646 | |
d68c645b LP |
2647 | (void) serialize_bool(f, "main-pid-known", s->main_pid_known); |
2648 | (void) serialize_bool(f, "bus-name-good", s->bus_name_good); | |
2649 | (void) serialize_bool(f, "bus-name-owner", s->bus_name_owner); | |
a16e1123 | 2650 | |
d68c645b LP |
2651 | (void) serialize_item_format(f, "n-restarts", "%u", s->n_restarts); |
2652 | (void) serialize_bool(f, "flush-n-restarts", s->flush_n_restarts); | |
7a0019d3 | 2653 | |
d68c645b | 2654 | r = serialize_item_escaped(f, "status-text", s->status_text); |
a34ceba6 LP |
2655 | if (r < 0) |
2656 | return r; | |
3a2776bc | 2657 | |
e266c068 MS |
2658 | service_serialize_exec_command(u, f, s->control_command); |
2659 | service_serialize_exec_command(u, f, s->main_command); | |
a16e1123 | 2660 | |
d68c645b | 2661 | r = serialize_fd(f, fds, "stdin-fd", s->stdin_fd); |
a34ceba6 LP |
2662 | if (r < 0) |
2663 | return r; | |
d68c645b | 2664 | r = serialize_fd(f, fds, "stdout-fd", s->stdout_fd); |
a34ceba6 LP |
2665 | if (r < 0) |
2666 | return r; | |
d68c645b | 2667 | r = serialize_fd(f, fds, "stderr-fd", s->stderr_fd); |
a34ceba6 LP |
2668 | if (r < 0) |
2669 | return r; | |
e44da745 | 2670 | |
5686391b | 2671 | if (s->exec_fd_event_source) { |
d68c645b | 2672 | r = serialize_fd(f, fds, "exec-fd", sd_event_source_get_io_fd(s->exec_fd_event_source)); |
5686391b LP |
2673 | if (r < 0) |
2674 | return r; | |
d68c645b LP |
2675 | |
2676 | (void) serialize_bool(f, "exec-fd-hot", s->exec_fd_hot); | |
5686391b LP |
2677 | } |
2678 | ||
9dfb64f8 | 2679 | if (UNIT_ISSET(s->accept_socket)) { |
d68c645b | 2680 | r = serialize_item(f, "accept-socket", UNIT_DEREF(s->accept_socket)->id); |
9dfb64f8 ZJS |
2681 | if (r < 0) |
2682 | return r; | |
2683 | } | |
2684 | ||
d68c645b | 2685 | r = serialize_fd(f, fds, "socket-fd", s->socket_fd); |
a34ceba6 LP |
2686 | if (r < 0) |
2687 | return r; | |
e44da745 | 2688 | |
2339fc93 | 2689 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2690 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2691 | int copy; |
2692 | ||
2693 | copy = fdset_put_dup(fds, fs->fd); | |
2694 | if (copy < 0) | |
d68c645b | 2695 | return log_error_errno(copy, "Failed to copy file descriptor for serialization: %m"); |
2339fc93 | 2696 | |
8dd4c05b | 2697 | c = cescape(fs->fdname); |
d68c645b LP |
2698 | if (!c) |
2699 | return log_oom(); | |
8dd4c05b | 2700 | |
d68c645b | 2701 | (void) serialize_item_format(f, "fd-store-fd", "%i %s", copy, c); |
2339fc93 LP |
2702 | } |
2703 | ||
ecdbca40 | 2704 | if (s->main_exec_status.pid > 0) { |
d68c645b LP |
2705 | (void) serialize_item_format(f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2706 | (void) serialize_dual_timestamp(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2707 | (void) serialize_dual_timestamp(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2708 | |
799fd0fd | 2709 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
d68c645b LP |
2710 | (void) serialize_item_format(f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2711 | (void) serialize_item_format(f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2712 | } |
2713 | } | |
f06db334 | 2714 | |
d68c645b LP |
2715 | (void) serialize_dual_timestamp(f, "watchdog-timestamp", &s->watchdog_timestamp); |
2716 | (void) serialize_bool(f, "forbid-restart", s->forbid_restart); | |
6aca9a58 | 2717 | |
2787d83c | 2718 | if (s->watchdog_override_enable) |
d68c645b | 2719 | (void) serialize_item_format(f, "watchdog-override-usec", USEC_FMT, s->watchdog_override_usec); |
2787d83c | 2720 | |
aa8c4bbf LP |
2721 | if (s->watchdog_original_usec != USEC_INFINITY) |
2722 | (void) serialize_item_format(f, "watchdog-original-usec", USEC_FMT, s->watchdog_original_usec); | |
2723 | ||
a16e1123 LP |
2724 | return 0; |
2725 | } | |
2726 | ||
e266c068 MS |
2727 | static int service_deserialize_exec_command(Unit *u, const char *key, const char *value) { |
2728 | Service *s = SERVICE(u); | |
2729 | int r; | |
2730 | unsigned idx = 0, i; | |
2731 | bool control, found = false; | |
2732 | ServiceExecCommand id = _SERVICE_EXEC_COMMAND_INVALID; | |
2733 | ExecCommand *command = NULL; | |
6eeec374 | 2734 | _cleanup_free_ char *path = NULL; |
e266c068 MS |
2735 | _cleanup_strv_free_ char **argv = NULL; |
2736 | ||
2737 | enum ExecCommandState { | |
2738 | STATE_EXEC_COMMAND_TYPE, | |
2739 | STATE_EXEC_COMMAND_INDEX, | |
2740 | STATE_EXEC_COMMAND_PATH, | |
2741 | STATE_EXEC_COMMAND_ARGS, | |
2742 | _STATE_EXEC_COMMAND_MAX, | |
2743 | _STATE_EXEC_COMMAND_INVALID = -1, | |
2744 | } state; | |
2745 | ||
2746 | assert(s); | |
2747 | assert(key); | |
2748 | assert(value); | |
2749 | ||
2750 | control = streq(key, "control-command"); | |
2751 | ||
2752 | state = STATE_EXEC_COMMAND_TYPE; | |
2753 | ||
2754 | for (;;) { | |
2755 | _cleanup_free_ char *arg = NULL; | |
2756 | ||
334c0979 | 2757 | r = extract_first_word(&value, &arg, NULL, EXTRACT_CUNESCAPE | EXTRACT_UNQUOTE); |
efa3f34e LP |
2758 | if (r < 0) |
2759 | return r; | |
e266c068 MS |
2760 | if (r == 0) |
2761 | break; | |
e266c068 MS |
2762 | |
2763 | switch (state) { | |
2764 | case STATE_EXEC_COMMAND_TYPE: | |
2765 | id = service_exec_command_from_string(arg); | |
2766 | if (id < 0) | |
2767 | return -EINVAL; | |
2768 | ||
2769 | state = STATE_EXEC_COMMAND_INDEX; | |
2770 | break; | |
2771 | case STATE_EXEC_COMMAND_INDEX: | |
2772 | r = safe_atou(arg, &idx); | |
2773 | if (r < 0) | |
2774 | return -EINVAL; | |
2775 | ||
2776 | state = STATE_EXEC_COMMAND_PATH; | |
2777 | break; | |
2778 | case STATE_EXEC_COMMAND_PATH: | |
ae2a15bc | 2779 | path = TAKE_PTR(arg); |
e266c068 MS |
2780 | state = STATE_EXEC_COMMAND_ARGS; |
2781 | ||
2782 | if (!path_is_absolute(path)) | |
2783 | return -EINVAL; | |
2784 | break; | |
2785 | case STATE_EXEC_COMMAND_ARGS: | |
2786 | r = strv_extend(&argv, arg); | |
2787 | if (r < 0) | |
2788 | return -ENOMEM; | |
2789 | break; | |
2790 | default: | |
2791 | assert_not_reached("Unknown error at deserialization of exec command"); | |
2792 | break; | |
2793 | } | |
2794 | } | |
2795 | ||
2796 | if (state != STATE_EXEC_COMMAND_ARGS) | |
2797 | return -EINVAL; | |
2798 | ||
2799 | /* Let's check whether exec command on given offset matches data that we just deserialized */ | |
2800 | for (command = s->exec_command[id], i = 0; command; command = command->command_next, i++) { | |
2801 | if (i != idx) | |
2802 | continue; | |
2803 | ||
2804 | found = strv_equal(argv, command->argv) && streq(command->path, path); | |
2805 | break; | |
2806 | } | |
2807 | ||
2808 | if (!found) { | |
2809 | /* Command at the index we serialized is different, let's look for command that exactly | |
2810 | * matches but is on different index. If there is no such command we will not resume execution. */ | |
2811 | for (command = s->exec_command[id]; command; command = command->command_next) | |
2812 | if (strv_equal(command->argv, argv) && streq(command->path, path)) | |
2813 | break; | |
2814 | } | |
2815 | ||
2816 | if (command && control) | |
2817 | s->control_command = command; | |
2818 | else if (command) | |
2819 | s->main_command = command; | |
2820 | else | |
2821 | log_unit_warning(u, "Current command vanished from the unit file, execution of the command list won't be resumed."); | |
2822 | ||
2823 | return 0; | |
2824 | } | |
2825 | ||
a16e1123 LP |
2826 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { |
2827 | Service *s = SERVICE(u); | |
2339fc93 | 2828 | int r; |
a16e1123 LP |
2829 | |
2830 | assert(u); | |
2831 | assert(key); | |
2832 | assert(value); | |
2833 | assert(fds); | |
2834 | ||
2835 | if (streq(key, "state")) { | |
2836 | ServiceState state; | |
2837 | ||
117dcc57 ZJS |
2838 | state = service_state_from_string(value); |
2839 | if (state < 0) | |
f2341e0a | 2840 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2841 | else |
2842 | s->deserialized_state = state; | |
f42806df LP |
2843 | } else if (streq(key, "result")) { |
2844 | ServiceResult f; | |
2845 | ||
2846 | f = service_result_from_string(value); | |
2847 | if (f < 0) | |
f2341e0a | 2848 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2849 | else if (f != SERVICE_SUCCESS) |
2850 | s->result = f; | |
2851 | ||
2852 | } else if (streq(key, "reload-result")) { | |
2853 | ServiceResult f; | |
2854 | ||
2855 | f = service_result_from_string(value); | |
2856 | if (f < 0) | |
f2341e0a | 2857 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2858 | else if (f != SERVICE_SUCCESS) |
2859 | s->reload_result = f; | |
a16e1123 | 2860 | |
a16e1123 | 2861 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2862 | pid_t pid; |
a16e1123 | 2863 | |
e364ad06 | 2864 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2865 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2866 | else |
e55224ca | 2867 | s->control_pid = pid; |
a16e1123 | 2868 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2869 | pid_t pid; |
a16e1123 | 2870 | |
e364ad06 | 2871 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2872 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
eabd3e56 LP |
2873 | else |
2874 | (void) service_set_main_pid(s, pid); | |
a16e1123 LP |
2875 | } else if (streq(key, "main-pid-known")) { |
2876 | int b; | |
2877 | ||
117dcc57 ZJS |
2878 | b = parse_boolean(value); |
2879 | if (b < 0) | |
f2341e0a | 2880 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2881 | else |
2882 | s->main_pid_known = b; | |
de1d4f9b WF |
2883 | } else if (streq(key, "bus-name-good")) { |
2884 | int b; | |
2885 | ||
2886 | b = parse_boolean(value); | |
2887 | if (b < 0) | |
2888 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2889 | else | |
2890 | s->bus_name_good = b; | |
d8ccf5fd DM |
2891 | } else if (streq(key, "bus-name-owner")) { |
2892 | r = free_and_strdup(&s->bus_name_owner, value); | |
2893 | if (r < 0) | |
2894 | log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value); | |
3a2776bc LP |
2895 | } else if (streq(key, "status-text")) { |
2896 | char *t; | |
2897 | ||
f2341e0a LP |
2898 | r = cunescape(value, 0, &t); |
2899 | if (r < 0) | |
5e1ee764 | 2900 | log_unit_debug_errno(u, r, "Failed to unescape status text '%s': %m", value); |
efa3f34e LP |
2901 | else |
2902 | free_and_replace(s->status_text, t); | |
3a2776bc | 2903 | |
9dfb64f8 ZJS |
2904 | } else if (streq(key, "accept-socket")) { |
2905 | Unit *socket; | |
2906 | ||
2907 | r = manager_load_unit(u->manager, value, NULL, NULL, &socket); | |
2908 | if (r < 0) | |
5e1ee764 | 2909 | log_unit_debug_errno(u, r, "Failed to load accept-socket unit '%s': %m", value); |
9dfb64f8 | 2910 | else { |
7f7d01ed | 2911 | unit_ref_set(&s->accept_socket, u, socket); |
9dfb64f8 ZJS |
2912 | SOCKET(socket)->n_connections++; |
2913 | } | |
2914 | ||
a16e1123 LP |
2915 | } else if (streq(key, "socket-fd")) { |
2916 | int fd; | |
2917 | ||
2918 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2919 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 2920 | else { |
574634bc | 2921 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
2922 | s->socket_fd = fdset_remove(fds, fd); |
2923 | } | |
2339fc93 | 2924 | } else if (streq(key, "fd-store-fd")) { |
8dd4c05b LP |
2925 | const char *fdv; |
2926 | size_t pf; | |
2339fc93 LP |
2927 | int fd; |
2928 | ||
8dd4c05b LP |
2929 | pf = strcspn(value, WHITESPACE); |
2930 | fdv = strndupa(value, pf); | |
2931 | ||
2932 | if (safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2933 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
2339fc93 | 2934 | else { |
8dd4c05b LP |
2935 | _cleanup_free_ char *t = NULL; |
2936 | const char *fdn; | |
2937 | ||
2938 | fdn = value + pf; | |
2939 | fdn += strspn(fdn, WHITESPACE); | |
2940 | (void) cunescape(fdn, 0, &t); | |
2941 | ||
2942 | r = service_add_fd_store(s, fd, t); | |
2339fc93 | 2943 | if (r < 0) |
f2341e0a | 2944 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); |
9021ff17 | 2945 | else |
2339fc93 LP |
2946 | fdset_remove(fds, fd); |
2947 | } | |
2948 | ||
ecdbca40 LP |
2949 | } else if (streq(key, "main-exec-status-pid")) { |
2950 | pid_t pid; | |
2951 | ||
e364ad06 | 2952 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2953 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
2954 | else |
2955 | s->main_exec_status.pid = pid; | |
2956 | } else if (streq(key, "main-exec-status-code")) { | |
2957 | int i; | |
2958 | ||
e364ad06 | 2959 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2960 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
2961 | else |
2962 | s->main_exec_status.code = i; | |
2963 | } else if (streq(key, "main-exec-status-status")) { | |
2964 | int i; | |
2965 | ||
e364ad06 | 2966 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2967 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
2968 | else |
2969 | s->main_exec_status.status = i; | |
799fd0fd | 2970 | } else if (streq(key, "main-exec-status-start")) |
d68c645b | 2971 | deserialize_dual_timestamp(value, &s->main_exec_status.start_timestamp); |
799fd0fd | 2972 | else if (streq(key, "main-exec-status-exit")) |
d68c645b | 2973 | deserialize_dual_timestamp(value, &s->main_exec_status.exit_timestamp); |
a6927d7f | 2974 | else if (streq(key, "watchdog-timestamp")) |
d68c645b | 2975 | deserialize_dual_timestamp(value, &s->watchdog_timestamp); |
613b411c | 2976 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2977 | int b; |
2978 | ||
2979 | b = parse_boolean(value); | |
2980 | if (b < 0) | |
f2341e0a | 2981 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
2982 | else |
2983 | s->forbid_restart = b; | |
a34ceba6 LP |
2984 | } else if (streq(key, "stdin-fd")) { |
2985 | int fd; | |
2986 | ||
2987 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2988 | log_unit_debug(u, "Failed to parse stdin-fd value: %s", value); | |
2989 | else { | |
2990 | asynchronous_close(s->stdin_fd); | |
2991 | s->stdin_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2992 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2993 | } |
2994 | } else if (streq(key, "stdout-fd")) { | |
2995 | int fd; | |
2996 | ||
2997 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2998 | log_unit_debug(u, "Failed to parse stdout-fd value: %s", value); | |
2999 | else { | |
3000 | asynchronous_close(s->stdout_fd); | |
3001 | s->stdout_fd = fdset_remove(fds, fd); | |
1e22b5cd | 3002 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
3003 | } |
3004 | } else if (streq(key, "stderr-fd")) { | |
3005 | int fd; | |
3006 | ||
3007 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3008 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
3009 | else { | |
3010 | asynchronous_close(s->stderr_fd); | |
3011 | s->stderr_fd = fdset_remove(fds, fd); | |
1e22b5cd | 3012 | s->exec_context.stdio_as_fds = true; |
a34ceba6 | 3013 | } |
5686391b LP |
3014 | } else if (streq(key, "exec-fd")) { |
3015 | int fd; | |
3016 | ||
3017 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3018 | log_unit_debug(u, "Failed to parse exec-fd value: %s", value); | |
3019 | else { | |
3020 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
3021 | ||
3022 | fd = fdset_remove(fds, fd); | |
3023 | if (service_allocate_exec_fd_event_source(s, fd, &s->exec_fd_event_source) < 0) | |
3024 | safe_close(fd); | |
3025 | } | |
2787d83c | 3026 | } else if (streq(key, "watchdog-override-usec")) { |
d68c645b | 3027 | if (deserialize_usec(value, &s->watchdog_override_usec) < 0) |
2787d83c | 3028 | log_unit_debug(u, "Failed to parse watchdog_override_usec value: %s", value); |
d68c645b | 3029 | else |
2787d83c | 3030 | s->watchdog_override_enable = true; |
d68c645b | 3031 | |
aa8c4bbf LP |
3032 | } else if (streq(key, "watchdog-original-usec")) { |
3033 | if (deserialize_usec(value, &s->watchdog_original_usec) < 0) | |
3034 | log_unit_debug(u, "Failed to parse watchdog_original_usec value: %s", value); | |
3035 | ||
e266c068 MS |
3036 | } else if (STR_IN_SET(key, "main-command", "control-command")) { |
3037 | r = service_deserialize_exec_command(u, key, value); | |
3038 | if (r < 0) | |
3039 | log_unit_debug_errno(u, r, "Failed to parse serialized command \"%s\": %m", value); | |
7a0019d3 LP |
3040 | |
3041 | } else if (streq(key, "n-restarts")) { | |
3042 | r = safe_atou(value, &s->n_restarts); | |
3043 | if (r < 0) | |
3044 | log_unit_debug_errno(u, r, "Failed to parse serialized restart counter '%s': %m", value); | |
3045 | ||
3046 | } else if (streq(key, "flush-n-restarts")) { | |
3047 | r = parse_boolean(value); | |
3048 | if (r < 0) | |
3049 | log_unit_debug_errno(u, r, "Failed to parse serialized flush restart counter setting '%s': %m", value); | |
3050 | else | |
3051 | s->flush_n_restarts = r; | |
c17ec25e | 3052 | } else |
f2341e0a | 3053 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
3054 | |
3055 | return 0; | |
3056 | } | |
3057 | ||
44a6b1b6 | 3058 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
3059 | const UnitActiveState *table; |
3060 | ||
87f0e418 | 3061 | assert(u); |
5cb5a6ff | 3062 | |
e056b01d LP |
3063 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
3064 | ||
3065 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
3066 | } |
3067 | ||
10a94420 LP |
3068 | static const char *service_sub_state_to_string(Unit *u) { |
3069 | assert(u); | |
3070 | ||
3071 | return service_state_to_string(SERVICE(u)->state); | |
3072 | } | |
3073 | ||
f2f725e5 | 3074 | static bool service_may_gc(Unit *u) { |
701cc384 LP |
3075 | Service *s = SERVICE(u); |
3076 | ||
3077 | assert(s); | |
3078 | ||
e98b2fbb | 3079 | /* Never clean up services that still have a process around, even if the service is formally dead. Note that |
f2f725e5 | 3080 | * unit_may_gc() already checked our cgroup for us, we just check our two additional PIDs, too, in case they |
e98b2fbb LP |
3081 | * have moved outside of the cgroup. */ |
3082 | ||
3083 | if (main_pid_good(s) > 0 || | |
6d55002a | 3084 | control_pid_good(s) > 0) |
f2f725e5 | 3085 | return false; |
6d55002a | 3086 | |
f2f725e5 | 3087 | return true; |
6d55002a LP |
3088 | } |
3089 | ||
3a111838 MS |
3090 | static int service_retry_pid_file(Service *s) { |
3091 | int r; | |
3092 | ||
3093 | assert(s->pid_file); | |
3742095b | 3094 | assert(IN_SET(s->state, SERVICE_START, SERVICE_START_POST)); |
3a111838 MS |
3095 | |
3096 | r = service_load_pid_file(s, false); | |
3097 | if (r < 0) | |
3098 | return r; | |
3099 | ||
3100 | service_unwatch_pid_file(s); | |
3101 | ||
f42806df | 3102 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
3103 | return 0; |
3104 | } | |
3105 | ||
3106 | static int service_watch_pid_file(Service *s) { | |
3107 | int r; | |
3108 | ||
f2341e0a | 3109 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 3110 | |
5686391b | 3111 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_inotify_io); |
3a111838 MS |
3112 | if (r < 0) |
3113 | goto fail; | |
3114 | ||
3115 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 3116 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
3117 | service_retry_pid_file(s); |
3118 | ||
3119 | return 0; | |
3120 | fail: | |
f2341e0a | 3121 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
3122 | service_unwatch_pid_file(s); |
3123 | return r; | |
3124 | } | |
3125 | ||
3126 | static int service_demand_pid_file(Service *s) { | |
3127 | PathSpec *ps; | |
3128 | ||
3129 | assert(s->pid_file); | |
3130 | assert(!s->pid_file_pathspec); | |
3131 | ||
3132 | ps = new0(PathSpec, 1); | |
3133 | if (!ps) | |
3134 | return -ENOMEM; | |
3135 | ||
718db961 | 3136 | ps->unit = UNIT(s); |
3a111838 MS |
3137 | ps->path = strdup(s->pid_file); |
3138 | if (!ps->path) { | |
3139 | free(ps); | |
3140 | return -ENOMEM; | |
3141 | } | |
3142 | ||
858d36c1 | 3143 | path_simplify(ps->path, false); |
3a111838 MS |
3144 | |
3145 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
3146 | * keep their PID file open all the time. */ | |
3147 | ps->type = PATH_MODIFIED; | |
3148 | ps->inotify_fd = -1; | |
3149 | ||
3150 | s->pid_file_pathspec = ps; | |
3151 | ||
3152 | return service_watch_pid_file(s); | |
3153 | } | |
3154 | ||
5686391b | 3155 | static int service_dispatch_inotify_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
3156 | PathSpec *p = userdata; |
3157 | Service *s; | |
3158 | ||
3159 | assert(p); | |
3160 | ||
3161 | s = SERVICE(p->unit); | |
3a111838 MS |
3162 | |
3163 | assert(s); | |
3164 | assert(fd >= 0); | |
3742095b | 3165 | assert(IN_SET(s->state, SERVICE_START, SERVICE_START_POST)); |
3a111838 | 3166 | assert(s->pid_file_pathspec); |
57020a3a | 3167 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 3168 | |
f2341e0a | 3169 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 3170 | |
e14c2802 | 3171 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
3172 | goto fail; |
3173 | ||
3174 | if (service_retry_pid_file(s) == 0) | |
718db961 | 3175 | return 0; |
3a111838 MS |
3176 | |
3177 | if (service_watch_pid_file(s) < 0) | |
3178 | goto fail; | |
3179 | ||
718db961 LP |
3180 | return 0; |
3181 | ||
3a111838 MS |
3182 | fail: |
3183 | service_unwatch_pid_file(s); | |
f42806df | 3184 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 3185 | return 0; |
3a111838 MS |
3186 | } |
3187 | ||
5686391b LP |
3188 | static int service_dispatch_exec_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
3189 | Service *s = SERVICE(userdata); | |
3190 | ||
3191 | assert(s); | |
3192 | ||
3193 | log_unit_debug(UNIT(s), "got exec-fd event"); | |
3194 | ||
3195 | /* If Type=exec is set, we'll consider a service started successfully the instant we invoked execve() | |
3196 | * successfully for it. We implement this through a pipe() towards the child, which the kernel automatically | |
3197 | * closes for us due to O_CLOEXEC on execve() in the child, which then triggers EOF on the pipe in the | |
3198 | * parent. We need to be careful however, as there are other reasons that we might cause the child's side of | |
3199 | * the pipe to be closed (for example, a simple exit()). To deal with that we'll ignore EOFs on the pipe unless | |
3200 | * the child signalled us first that it is about to call the execve(). It does so by sending us a simple | |
3201 | * non-zero byte via the pipe. We also provide the child with a way to inform us in case execve() failed: if it | |
3202 | * sends a zero byte we'll ignore POLLHUP on the fd again. */ | |
3203 | ||
3204 | for (;;) { | |
3205 | uint8_t x; | |
3206 | ssize_t n; | |
3207 | ||
3208 | n = read(fd, &x, sizeof(x)); | |
3209 | if (n < 0) { | |
3210 | if (errno == EAGAIN) /* O_NONBLOCK in effect → everything queued has now been processed. */ | |
3211 | return 0; | |
3212 | ||
3213 | return log_unit_error_errno(UNIT(s), errno, "Failed to read from exec_fd: %m"); | |
3214 | } | |
3215 | if (n == 0) { /* EOF → the event we are waiting for */ | |
3216 | ||
3217 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
3218 | ||
3219 | if (s->exec_fd_hot) { /* Did the child tell us to expect EOF now? */ | |
3220 | log_unit_debug(UNIT(s), "Got EOF on exec-fd"); | |
3221 | ||
3222 | s->exec_fd_hot = false; | |
3223 | ||
3224 | /* Nice! This is what we have been waiting for. Transition to next state. */ | |
3225 | if (s->type == SERVICE_EXEC && s->state == SERVICE_START) | |
3226 | service_enter_start_post(s); | |
3227 | } else | |
3228 | log_unit_debug(UNIT(s), "Got EOF on exec-fd while it was disabled, ignoring."); | |
3229 | ||
3230 | return 0; | |
3231 | } | |
3232 | ||
3233 | /* A byte was read → this turns on/off the exec fd logic */ | |
3234 | assert(n == sizeof(x)); | |
3235 | s->exec_fd_hot = x; | |
3236 | } | |
3237 | ||
3238 | return 0; | |
3239 | } | |
3240 | ||
a911bb9a LP |
3241 | static void service_notify_cgroup_empty_event(Unit *u) { |
3242 | Service *s = SERVICE(u); | |
3243 | ||
3244 | assert(u); | |
3245 | ||
a5b5aece | 3246 | log_unit_debug(u, "Control group is empty."); |
a911bb9a LP |
3247 | |
3248 | switch (s->state) { | |
3249 | ||
3250 | /* Waiting for SIGCHLD is usually more interesting, | |
3251 | * because it includes return codes/signals. Which is | |
3252 | * why we ignore the cgroup events for most cases, | |
3253 | * except when we don't know pid which to expect the | |
3254 | * SIGCHLD for. */ | |
3255 | ||
3256 | case SERVICE_START: | |
3c751b1b LP |
3257 | if (s->type == SERVICE_NOTIFY && |
3258 | main_pid_good(s) == 0 && | |
3259 | control_pid_good(s) == 0) { | |
3d474ef7 | 3260 | /* No chance of getting a ready notification anymore */ |
c3fda31d | 3261 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
71e529fc JW |
3262 | break; |
3263 | } | |
3264 | ||
4831981d | 3265 | _fallthrough_; |
71e529fc | 3266 | case SERVICE_START_POST: |
3c751b1b LP |
3267 | if (s->pid_file_pathspec && |
3268 | main_pid_good(s) == 0 && | |
3269 | control_pid_good(s) == 0) { | |
3270 | ||
3d474ef7 | 3271 | /* Give up hoping for the daemon to write its PID file */ |
f2341e0a | 3272 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 3273 | |
a911bb9a LP |
3274 | service_unwatch_pid_file(s); |
3275 | if (s->state == SERVICE_START) | |
c3fda31d | 3276 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a | 3277 | else |
c35755fb | 3278 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a LP |
3279 | } |
3280 | break; | |
3281 | ||
3282 | case SERVICE_RUNNING: | |
3283 | /* service_enter_running() will figure out what to do */ | |
3284 | service_enter_running(s, SERVICE_SUCCESS); | |
3285 | break; | |
3286 | ||
c87700a1 | 3287 | case SERVICE_STOP_WATCHDOG: |
a911bb9a LP |
3288 | case SERVICE_STOP_SIGTERM: |
3289 | case SERVICE_STOP_SIGKILL: | |
3290 | ||
b13ddbbc | 3291 | if (main_pid_good(s) <= 0 && control_pid_good(s) <= 0) |
a911bb9a LP |
3292 | service_enter_stop_post(s, SERVICE_SUCCESS); |
3293 | ||
3294 | break; | |
3295 | ||
3296 | case SERVICE_STOP_POST: | |
3297 | case SERVICE_FINAL_SIGTERM: | |
3298 | case SERVICE_FINAL_SIGKILL: | |
b13ddbbc | 3299 | if (main_pid_good(s) <= 0 && control_pid_good(s) <= 0) |
a911bb9a LP |
3300 | service_enter_dead(s, SERVICE_SUCCESS, true); |
3301 | ||
3302 | break; | |
3303 | ||
3304 | default: | |
3305 | ; | |
3306 | } | |
3307 | } | |
3308 | ||
afcfaa69 LP |
3309 | static void service_notify_cgroup_oom_event(Unit *u) { |
3310 | Service *s = SERVICE(u); | |
3311 | ||
3312 | log_unit_debug(u, "Process of control group was killed by the OOM killer."); | |
3313 | ||
3314 | if (s->oom_policy == OOM_CONTINUE) | |
3315 | return; | |
3316 | ||
3317 | switch (s->state) { | |
3318 | ||
31cd5f63 | 3319 | case SERVICE_CONDITION: |
afcfaa69 LP |
3320 | case SERVICE_START_PRE: |
3321 | case SERVICE_START: | |
3322 | case SERVICE_START_POST: | |
3323 | case SERVICE_STOP: | |
3324 | if (s->oom_policy == OOM_STOP) | |
3325 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_OOM_KILL); | |
3326 | else if (s->oom_policy == OOM_KILL) | |
3327 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3328 | ||
3329 | break; | |
3330 | ||
3331 | case SERVICE_EXITED: | |
3332 | case SERVICE_RUNNING: | |
3333 | if (s->oom_policy == OOM_STOP) | |
3334 | service_enter_stop(s, SERVICE_FAILURE_OOM_KILL); | |
3335 | else if (s->oom_policy == OOM_KILL) | |
3336 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3337 | ||
3338 | break; | |
3339 | ||
3340 | case SERVICE_STOP_WATCHDOG: | |
3341 | case SERVICE_STOP_SIGTERM: | |
3342 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3343 | break; | |
3344 | ||
3345 | case SERVICE_STOP_SIGKILL: | |
3346 | case SERVICE_FINAL_SIGKILL: | |
3347 | if (s->result == SERVICE_SUCCESS) | |
3348 | s->result = SERVICE_FAILURE_OOM_KILL; | |
3349 | break; | |
3350 | ||
3351 | case SERVICE_STOP_POST: | |
3352 | case SERVICE_FINAL_SIGTERM: | |
3353 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3354 | break; | |
3355 | ||
3356 | default: | |
3357 | ; | |
3358 | } | |
3359 | } | |
3360 | ||
87f0e418 | 3361 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
5cdabc8d | 3362 | bool notify_dbus = true; |
87f0e418 | 3363 | Service *s = SERVICE(u); |
f42806df | 3364 | ServiceResult f; |
e5123725 | 3365 | ExitClean clean_mode; |
5cb5a6ff LP |
3366 | |
3367 | assert(s); | |
034c6ed7 LP |
3368 | assert(pid >= 0); |
3369 | ||
e5123725 AZ |
3370 | /* Oneshot services and non-SERVICE_EXEC_START commands should not be |
3371 | * considered daemons as they are typically not long running. */ | |
3372 | if (s->type == SERVICE_ONESHOT || (s->control_pid == pid && s->control_command_id != SERVICE_EXEC_START)) | |
3373 | clean_mode = EXIT_CLEAN_COMMAND; | |
3374 | else | |
3375 | clean_mode = EXIT_CLEAN_DAEMON; | |
3376 | ||
3377 | if (is_clean_exit(code, status, clean_mode, &s->success_status)) | |
f42806df LP |
3378 | f = SERVICE_SUCCESS; |
3379 | else if (code == CLD_EXITED) | |
3380 | f = SERVICE_FAILURE_EXIT_CODE; | |
3381 | else if (code == CLD_KILLED) | |
3382 | f = SERVICE_FAILURE_SIGNAL; | |
3383 | else if (code == CLD_DUMPED) | |
3384 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 3385 | else |
cfc4eb4c | 3386 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
3387 | |
3388 | if (s->main_pid == pid) { | |
db01f8b3 MS |
3389 | /* Forking services may occasionally move to a new PID. |
3390 | * As long as they update the PID file before exiting the old | |
3391 | * PID, they're fine. */ | |
db256aab | 3392 | if (service_load_pid_file(s, false) > 0) |
db01f8b3 | 3393 | return; |
034c6ed7 | 3394 | |
034c6ed7 | 3395 | s->main_pid = 0; |
6ea832a2 | 3396 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 3397 | |
867b3b7d | 3398 | if (s->main_command) { |
fbeefb45 LP |
3399 | /* If this is not a forking service than the |
3400 | * main process got started and hence we copy | |
3401 | * the exit status so that it is recorded both | |
3402 | * as main and as control process exit | |
3403 | * status */ | |
3404 | ||
867b3b7d | 3405 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 3406 | |
3ed0cd26 | 3407 | if (s->main_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3408 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
3409 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
3410 | ||
3411 | /* If this is a forked process, then we should | |
3412 | * ignore the return value if this was | |
3413 | * configured for the starter process */ | |
3414 | ||
3ed0cd26 | 3415 | if (s->exec_command[SERVICE_EXEC_START]->flags & EXEC_COMMAND_IGNORE_FAILURE) |
fbeefb45 | 3416 | f = SERVICE_SUCCESS; |
034c6ed7 LP |
3417 | } |
3418 | ||
91bbd9b7 | 3419 | unit_log_process_exit( |
5cc2cd1c | 3420 | u, |
91bbd9b7 LP |
3421 | "Main process", |
3422 | service_exec_command_to_string(SERVICE_EXEC_START), | |
5cc2cd1c | 3423 | f == SERVICE_SUCCESS, |
91bbd9b7 | 3424 | code, status); |
f42806df | 3425 | |
a0fef983 | 3426 | if (s->result == SERVICE_SUCCESS) |
f42806df | 3427 | s->result = f; |
034c6ed7 | 3428 | |
867b3b7d LP |
3429 | if (s->main_command && |
3430 | s->main_command->command_next && | |
b58aeb70 | 3431 | s->type == SERVICE_ONESHOT && |
f42806df | 3432 | f == SERVICE_SUCCESS) { |
034c6ed7 | 3433 | |
34e9ba66 LP |
3434 | /* There is another command to * |
3435 | * execute, so let's do that. */ | |
034c6ed7 | 3436 | |
f2341e0a | 3437 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 3438 | service_run_next_main(s); |
034c6ed7 | 3439 | |
34e9ba66 LP |
3440 | } else { |
3441 | ||
3442 | /* The service exited, so the service is officially | |
3443 | * gone. */ | |
867b3b7d | 3444 | s->main_command = NULL; |
34e9ba66 LP |
3445 | |
3446 | switch (s->state) { | |
3447 | ||
3448 | case SERVICE_START_POST: | |
3449 | case SERVICE_RELOAD: | |
3450 | case SERVICE_STOP: | |
3451 | /* Need to wait until the operation is | |
3452 | * done */ | |
c4653a4d | 3453 | break; |
7d55e835 | 3454 | |
34e9ba66 LP |
3455 | case SERVICE_START: |
3456 | if (s->type == SERVICE_ONESHOT) { | |
3457 | /* This was our main goal, so let's go on */ | |
f42806df | 3458 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
3459 | service_enter_start_post(s); |
3460 | else | |
c3fda31d | 3461 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
34e9ba66 | 3462 | break; |
3d474ef7 JW |
3463 | } else if (s->type == SERVICE_NOTIFY) { |
3464 | /* Only enter running through a notification, so that the | |
3465 | * SERVICE_START state signifies that no ready notification | |
3466 | * has been received */ | |
3467 | if (f != SERVICE_SUCCESS) | |
c3fda31d | 3468 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
df66b93f JW |
3469 | else if (!s->remain_after_exit || s->notify_access == NOTIFY_MAIN) |
3470 | /* The service has never been and will never be active */ | |
c3fda31d | 3471 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3d474ef7 | 3472 | break; |
34e9ba66 | 3473 | } |
034c6ed7 | 3474 | |
4831981d | 3475 | _fallthrough_; |
34e9ba66 | 3476 | case SERVICE_RUNNING: |
f42806df | 3477 | service_enter_running(s, f); |
34e9ba66 | 3478 | break; |
034c6ed7 | 3479 | |
c87700a1 | 3480 | case SERVICE_STOP_WATCHDOG: |
34e9ba66 LP |
3481 | case SERVICE_STOP_SIGTERM: |
3482 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 3483 | |
b13ddbbc | 3484 | if (control_pid_good(s) <= 0) |
f42806df | 3485 | service_enter_stop_post(s, f); |
5cb5a6ff | 3486 | |
34e9ba66 LP |
3487 | /* If there is still a control process, wait for that first */ |
3488 | break; | |
3489 | ||
bf108e55 LP |
3490 | case SERVICE_STOP_POST: |
3491 | case SERVICE_FINAL_SIGTERM: | |
3492 | case SERVICE_FINAL_SIGKILL: | |
3493 | ||
b13ddbbc | 3494 | if (control_pid_good(s) <= 0) |
bf108e55 LP |
3495 | service_enter_dead(s, f, true); |
3496 | break; | |
3497 | ||
34e9ba66 LP |
3498 | default: |
3499 | assert_not_reached("Uh, main process died at wrong time."); | |
3500 | } | |
034c6ed7 | 3501 | } |
5cb5a6ff | 3502 | |
034c6ed7 | 3503 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
3504 | s->control_pid = 0; |
3505 | ||
31cd5f63 AZ |
3506 | /* ExecCondition= calls that exit with (0, 254] should invoke skip-like behavior instead of failing */ |
3507 | if (f == SERVICE_FAILURE_EXIT_CODE && s->state == SERVICE_CONDITION && status < 255) | |
3508 | f = SERVICE_SKIP_CONDITION; | |
3509 | ||
b708e7ce | 3510 | if (s->control_command) { |
8bb2d17d | 3511 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 3512 | |
3ed0cd26 | 3513 | if (s->control_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3514 | f = SERVICE_SUCCESS; |
b708e7ce LP |
3515 | } |
3516 | ||
91bbd9b7 | 3517 | unit_log_process_exit( |
5cc2cd1c | 3518 | u, |
91bbd9b7 LP |
3519 | "Control process", |
3520 | service_exec_command_to_string(s->control_command_id), | |
5cc2cd1c | 3521 | f == SERVICE_SUCCESS, |
91bbd9b7 | 3522 | code, status); |
f42806df | 3523 | |
d611cfa7 | 3524 | if (s->state != SERVICE_RELOAD && s->result == SERVICE_SUCCESS) |
f42806df | 3525 | s->result = f; |
034c6ed7 | 3526 | |
34e9ba66 LP |
3527 | if (s->control_command && |
3528 | s->control_command->command_next && | |
f42806df | 3529 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3530 | |
3531 | /* There is another command to * | |
3532 | * execute, so let's do that. */ | |
3533 | ||
f2341e0a | 3534 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 3535 | service_run_next_control(s); |
034c6ed7 | 3536 | |
80876c20 | 3537 | } else { |
034c6ed7 LP |
3538 | /* No further commands for this step, so let's |
3539 | * figure out what to do next */ | |
3540 | ||
a16e1123 LP |
3541 | s->control_command = NULL; |
3542 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3543 | ||
f2341e0a | 3544 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 3545 | |
034c6ed7 LP |
3546 | switch (s->state) { |
3547 | ||
31cd5f63 AZ |
3548 | case SERVICE_CONDITION: |
3549 | if (f == SERVICE_SUCCESS) | |
3550 | service_enter_start_pre(s); | |
3551 | else | |
3552 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
3553 | break; | |
3554 | ||
034c6ed7 | 3555 | case SERVICE_START_PRE: |
f42806df | 3556 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3557 | service_enter_start(s); |
3558 | else | |
c3fda31d | 3559 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3560 | break; |
3561 | ||
3562 | case SERVICE_START: | |
bfba3256 LP |
3563 | if (s->type != SERVICE_FORKING) |
3564 | /* Maybe spurious event due to a reload that changed the type? */ | |
3565 | break; | |
034c6ed7 | 3566 | |
f42806df | 3567 | if (f != SERVICE_SUCCESS) { |
c3fda31d | 3568 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3a111838 MS |
3569 | break; |
3570 | } | |
034c6ed7 | 3571 | |
3a111838 | 3572 | if (s->pid_file) { |
f42806df LP |
3573 | bool has_start_post; |
3574 | int r; | |
3575 | ||
3a111838 MS |
3576 | /* Let's try to load the pid file here if we can. |
3577 | * The PID file might actually be created by a START_POST | |
3578 | * script. In that case don't worry if the loading fails. */ | |
f42806df | 3579 | |
5d904a6a | 3580 | has_start_post = s->exec_command[SERVICE_EXEC_START_POST]; |
f42806df | 3581 | r = service_load_pid_file(s, !has_start_post); |
3a111838 MS |
3582 | if (!has_start_post && r < 0) { |
3583 | r = service_demand_pid_file(s); | |
b13ddbbc | 3584 | if (r < 0 || cgroup_good(s) == 0) |
c3fda31d | 3585 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3a111838 MS |
3586 | break; |
3587 | } | |
034c6ed7 | 3588 | } else |
783e05d6 | 3589 | service_search_main_pid(s); |
034c6ed7 | 3590 | |
3a111838 | 3591 | service_enter_start_post(s); |
034c6ed7 LP |
3592 | break; |
3593 | ||
3594 | case SERVICE_START_POST: | |
f42806df | 3595 | if (f != SERVICE_SUCCESS) { |
ce359e98 | 3596 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
2096e009 | 3597 | break; |
034c6ed7 LP |
3598 | } |
3599 | ||
2096e009 | 3600 | if (s->pid_file) { |
f42806df LP |
3601 | int r; |
3602 | ||
3603 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3604 | if (r < 0) { |
3605 | r = service_demand_pid_file(s); | |
b13ddbbc | 3606 | if (r < 0 || cgroup_good(s) == 0) |
c35755fb | 3607 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
2096e009 MS |
3608 | break; |
3609 | } | |
3610 | } else | |
783e05d6 | 3611 | service_search_main_pid(s); |
2096e009 | 3612 | |
f42806df | 3613 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3614 | break; |
034c6ed7 LP |
3615 | |
3616 | case SERVICE_RELOAD: | |
7236ce6e ZJS |
3617 | if (f == SERVICE_SUCCESS) |
3618 | if (service_load_pid_file(s, true) < 0) | |
3619 | service_search_main_pid(s); | |
3185a36b | 3620 | |
f42806df LP |
3621 | s->reload_result = f; |
3622 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3623 | break; |
3624 | ||
3625 | case SERVICE_STOP: | |
f42806df | 3626 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3627 | break; |
3628 | ||
c87700a1 | 3629 | case SERVICE_STOP_WATCHDOG: |
034c6ed7 LP |
3630 | case SERVICE_STOP_SIGTERM: |
3631 | case SERVICE_STOP_SIGKILL: | |
3632 | if (main_pid_good(s) <= 0) | |
f42806df | 3633 | service_enter_stop_post(s, f); |
034c6ed7 | 3634 | |
846a07b5 | 3635 | /* If there is still a service process around, wait until |
034c6ed7 LP |
3636 | * that one quit, too */ |
3637 | break; | |
3638 | ||
3639 | case SERVICE_STOP_POST: | |
3640 | case SERVICE_FINAL_SIGTERM: | |
3641 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
3642 | if (main_pid_good(s) <= 0) |
3643 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
3644 | break; |
3645 | ||
4c2f5842 LP |
3646 | case SERVICE_CLEANING: |
3647 | ||
3648 | if (s->clean_result == SERVICE_SUCCESS) | |
3649 | s->clean_result = f; | |
3650 | ||
3651 | service_enter_dead(s, SERVICE_SUCCESS, false); | |
3652 | break; | |
3653 | ||
034c6ed7 LP |
3654 | default: |
3655 | assert_not_reached("Uh, control process died at wrong time."); | |
3656 | } | |
3657 | } | |
5cdabc8d LP |
3658 | } else /* Neither control nor main PID? If so, don't notify about anything */ |
3659 | notify_dbus = false; | |
c4e2ceae LP |
3660 | |
3661 | /* Notify clients about changed exit status */ | |
5cdabc8d LP |
3662 | if (notify_dbus) |
3663 | unit_add_to_dbus_queue(u); | |
a911bb9a | 3664 | |
846a07b5 FB |
3665 | /* We watch the main/control process otherwise we can't retrieve the unit they |
3666 | * belong to with cgroupv1. But if they are not our direct child, we won't get a | |
3667 | * SIGCHLD for them. Therefore we need to look for others to watch so we can | |
3668 | * detect when the cgroup becomes empty. Note that the control process is always | |
3669 | * our child so it's pointless to watch all other processes. */ | |
3670 | if (!control_pid_good(s)) | |
3671 | if (!s->main_pid_known || s->main_pid_alien) | |
3672 | (void) unit_enqueue_rewatch_pids(u); | |
034c6ed7 LP |
3673 | } |
3674 | ||
718db961 LP |
3675 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
3676 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
3677 | |
3678 | assert(s); | |
718db961 | 3679 | assert(source == s->timer_event_source); |
034c6ed7 LP |
3680 | |
3681 | switch (s->state) { | |
3682 | ||
31cd5f63 | 3683 | case SERVICE_CONDITION: |
034c6ed7 LP |
3684 | case SERVICE_START_PRE: |
3685 | case SERVICE_START: | |
31cd5f63 | 3686 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", service_state_to_string(s->state)); |
c3fda31d | 3687 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
3688 | break; |
3689 | ||
034c6ed7 | 3690 | case SERVICE_START_POST: |
f2341e0a | 3691 | log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping."); |
ce359e98 | 3692 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3693 | break; |
3694 | ||
36c16a7c LP |
3695 | case SERVICE_RUNNING: |
3696 | log_unit_warning(UNIT(s), "Service reached runtime time limit. Stopping."); | |
3697 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); | |
3698 | break; | |
3699 | ||
e2f3b44c | 3700 | case SERVICE_RELOAD: |
089b64d5 | 3701 | log_unit_warning(UNIT(s), "Reload operation timed out. Killing reload process."); |
e9a4f676 | 3702 | service_kill_control_process(s); |
f42806df LP |
3703 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3704 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3705 | break; |
3706 | ||
034c6ed7 | 3707 | case SERVICE_STOP: |
f2341e0a | 3708 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
f42806df | 3709 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3710 | break; |
3711 | ||
c87700a1 AZ |
3712 | case SERVICE_STOP_WATCHDOG: |
3713 | log_unit_warning(UNIT(s), "State 'stop-watchdog' timed out. Terminating."); | |
2ab2ab7b | 3714 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
db2cb23b UTL |
3715 | break; |
3716 | ||
034c6ed7 | 3717 | case SERVICE_STOP_SIGTERM: |
4819ff03 | 3718 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3719 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 3720 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3721 | } else { |
f2341e0a | 3722 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 3723 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3724 | } |
3725 | ||
034c6ed7 LP |
3726 | break; |
3727 | ||
3728 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3729 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3730 | * Must be something we cannot kill, so let's just be |
3731 | * weirded out and continue */ | |
3732 | ||
f2341e0a | 3733 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 3734 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3735 | break; |
3736 | ||
3737 | case SERVICE_STOP_POST: | |
f2341e0a | 3738 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); |
f42806df | 3739 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3740 | break; |
3741 | ||
3742 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 3743 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3744 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing."); |
f42806df | 3745 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3746 | } else { |
f2341e0a | 3747 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); |
f42806df | 3748 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3749 | } |
3750 | ||
034c6ed7 LP |
3751 | break; |
3752 | ||
3753 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 3754 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 3755 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3756 | break; |
3757 | ||
3758 | case SERVICE_AUTO_RESTART: | |
5ce6e7f5 ZJS |
3759 | if (s->restart_usec > 0) { |
3760 | char buf_restart[FORMAT_TIMESPAN_MAX]; | |
868f7d36 ZJS |
3761 | log_unit_debug(UNIT(s), |
3762 | "Service RestartSec=%s expired, scheduling restart.", | |
3763 | format_timespan(buf_restart, sizeof buf_restart, s->restart_usec, USEC_PER_SEC)); | |
5ce6e7f5 | 3764 | } else |
868f7d36 ZJS |
3765 | log_unit_debug(UNIT(s), |
3766 | "Service has no hold-off time (RestartSec=0), scheduling restart."); | |
5ce6e7f5 | 3767 | |
034c6ed7 LP |
3768 | service_enter_restart(s); |
3769 | break; | |
3770 | ||
4c2f5842 LP |
3771 | case SERVICE_CLEANING: |
3772 | log_unit_warning(UNIT(s), "Cleaning timed out. killing."); | |
3773 | ||
3774 | if (s->clean_result == SERVICE_SUCCESS) | |
3775 | s->clean_result = SERVICE_FAILURE_TIMEOUT; | |
3776 | ||
3777 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, 0); | |
3778 | break; | |
3779 | ||
034c6ed7 LP |
3780 | default: |
3781 | assert_not_reached("Timeout at wrong time."); | |
3782 | } | |
718db961 LP |
3783 | |
3784 | return 0; | |
3785 | } | |
3786 | ||
3787 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
3788 | Service *s = SERVICE(userdata); | |
a7850c7d | 3789 | char t[FORMAT_TIMESPAN_MAX]; |
2787d83c | 3790 | usec_t watchdog_usec; |
718db961 LP |
3791 | |
3792 | assert(s); | |
3793 | assert(source == s->watchdog_event_source); | |
3794 | ||
2787d83c M |
3795 | watchdog_usec = service_get_watchdog_usec(s); |
3796 | ||
2a12e32e JK |
3797 | if (UNIT(s)->manager->service_watchdogs) { |
3798 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", | |
3799 | format_timespan(t, sizeof(t), watchdog_usec, 1)); | |
8bb2d17d | 3800 | |
c87700a1 | 3801 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_WATCHDOG); |
2a12e32e JK |
3802 | } else |
3803 | log_unit_warning(UNIT(s), "Watchdog disabled! Ignoring watchdog timeout (limit %s)!", | |
3804 | format_timespan(t, sizeof(t), watchdog_usec, 1)); | |
842129f5 | 3805 | |
718db961 | 3806 | return 0; |
5cb5a6ff LP |
3807 | } |
3808 | ||
e3285237 LP |
3809 | static bool service_notify_message_authorized(Service *s, pid_t pid, char **tags, FDSet *fds) { |
3810 | assert(s); | |
8c47c732 | 3811 | |
c952c6ec | 3812 | if (s->notify_access == NOTIFY_NONE) { |
e3285237 LP |
3813 | log_unit_warning(UNIT(s), "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
3814 | return false; | |
3815 | } | |
3816 | ||
3817 | if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { | |
336c6e46 | 3818 | if (s->main_pid != 0) |
e3285237 | 3819 | 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 | 3820 | else |
e3285237 LP |
3821 | 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); |
3822 | ||
3823 | return false; | |
3824 | } | |
3825 | ||
3826 | if (s->notify_access == NOTIFY_EXEC && pid != s->main_pid && pid != s->control_pid) { | |
6375bd20 | 3827 | if (s->main_pid != 0 && s->control_pid != 0) |
e3285237 | 3828 | 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 |
3829 | pid, s->main_pid, s->control_pid); |
3830 | else if (s->main_pid != 0) | |
e3285237 | 3831 | 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 | 3832 | else if (s->control_pid != 0) |
e3285237 | 3833 | 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 | 3834 | else |
e3285237 LP |
3835 | 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); |
3836 | ||
3837 | return false; | |
9711848f LP |
3838 | } |
3839 | ||
e3285237 LP |
3840 | return true; |
3841 | } | |
3842 | ||
99b43caf JK |
3843 | static void service_force_watchdog(Service *s) { |
3844 | if (!UNIT(s)->manager->service_watchdogs) | |
3845 | return; | |
3846 | ||
3847 | log_unit_error(UNIT(s), "Watchdog request (last status: %s)!", | |
3848 | s->status_text ? s->status_text : "<unset>"); | |
3849 | ||
3850 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_WATCHDOG); | |
3851 | } | |
3852 | ||
db256aab LP |
3853 | static void service_notify_message( |
3854 | Unit *u, | |
3855 | const struct ucred *ucred, | |
3856 | char **tags, | |
3857 | FDSet *fds) { | |
3858 | ||
e3285237 LP |
3859 | Service *s = SERVICE(u); |
3860 | bool notify_dbus = false; | |
3861 | const char *e; | |
cc2b7b11 | 3862 | char **i; |
db256aab | 3863 | int r; |
e3285237 LP |
3864 | |
3865 | assert(u); | |
db256aab | 3866 | assert(ucred); |
e3285237 | 3867 | |
db256aab | 3868 | if (!service_notify_message_authorized(SERVICE(u), ucred->pid, tags, fds)) |
e3285237 LP |
3869 | return; |
3870 | ||
f1d34068 | 3871 | if (DEBUG_LOGGING) { |
9711848f LP |
3872 | _cleanup_free_ char *cc = NULL; |
3873 | ||
3874 | cc = strv_join(tags, ", "); | |
db256aab | 3875 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", ucred->pid, isempty(cc) ? "n/a" : cc); |
9711848f | 3876 | } |
c952c6ec | 3877 | |
8c47c732 | 3878 | /* Interpret MAINPID= */ |
28849dba | 3879 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 3880 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
db256aab LP |
3881 | pid_t new_main_pid; |
3882 | ||
3883 | if (parse_pid(e, &new_main_pid) < 0) | |
3884 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message, ignoring: %s", e); | |
3885 | else if (!s->main_pid_known || new_main_pid != s->main_pid) { | |
3886 | ||
3887 | r = service_is_suitable_main_pid(s, new_main_pid, LOG_WARNING); | |
3888 | if (r == 0) { | |
5238e957 | 3889 | /* The new main PID is a bit suspicious, which is OK if the sender is privileged. */ |
db256aab LP |
3890 | |
3891 | if (ucred->uid == 0) { | |
3892 | 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); | |
3893 | r = 1; | |
3894 | } else | |
3895 | log_unit_debug(u, "New main PID "PID_FMT" does not belong to service, refusing.", new_main_pid); | |
3896 | } | |
3897 | if (r > 0) { | |
3898 | service_set_main_pid(s, new_main_pid); | |
cdc2af3e | 3899 | |
f75f613d | 3900 | r = unit_watch_pid(UNIT(s), new_main_pid, false); |
cdc2af3e LP |
3901 | if (r < 0) |
3902 | log_unit_warning_errno(UNIT(s), r, "Failed to watch new main PID "PID_FMT" for service: %m", new_main_pid); | |
3903 | ||
db256aab LP |
3904 | notify_dbus = true; |
3905 | } | |
8c47c732 LP |
3906 | } |
3907 | } | |
3908 | ||
cc2b7b11 LP |
3909 | /* Interpret READY=/STOPPING=/RELOADING=. Last one wins. */ |
3910 | STRV_FOREACH_BACKWARDS(i, tags) { | |
308d72dc | 3911 | |
cc2b7b11 LP |
3912 | if (streq(*i, "READY=1")) { |
3913 | s->notify_state = NOTIFY_READY; | |
308d72dc | 3914 | |
cc2b7b11 LP |
3915 | /* Type=notify services inform us about completed |
3916 | * initialization with READY=1 */ | |
3917 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
3918 | service_enter_start_post(s); | |
308d72dc | 3919 | |
cc2b7b11 LP |
3920 | /* Sending READY=1 while we are reloading informs us |
3921 | * that the reloading is complete */ | |
3922 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
3923 | service_enter_running(s, SERVICE_SUCCESS); | |
308d72dc | 3924 | |
cc2b7b11 LP |
3925 | notify_dbus = true; |
3926 | break; | |
308d72dc | 3927 | |
cc2b7b11 LP |
3928 | } else if (streq(*i, "RELOADING=1")) { |
3929 | s->notify_state = NOTIFY_RELOADING; | |
308d72dc | 3930 | |
cc2b7b11 LP |
3931 | if (s->state == SERVICE_RUNNING) |
3932 | service_enter_reload_by_notify(s); | |
308d72dc | 3933 | |
cc2b7b11 LP |
3934 | notify_dbus = true; |
3935 | break; | |
308d72dc | 3936 | |
cc2b7b11 LP |
3937 | } else if (streq(*i, "STOPPING=1")) { |
3938 | s->notify_state = NOTIFY_STOPPING; | |
308d72dc | 3939 | |
cc2b7b11 LP |
3940 | if (s->state == SERVICE_RUNNING) |
3941 | service_enter_stop_by_notify(s); | |
308d72dc | 3942 | |
cc2b7b11 LP |
3943 | notify_dbus = true; |
3944 | break; | |
3945 | } | |
8c47c732 LP |
3946 | } |
3947 | ||
3948 | /* Interpret STATUS= */ | |
28849dba | 3949 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 3950 | if (e) { |
28849dba | 3951 | _cleanup_free_ char *t = NULL; |
8c47c732 | 3952 | |
28849dba | 3953 | if (!isempty(e)) { |
3eac1bca LP |
3954 | /* Note that this size limit check is mostly paranoia: since the datagram size we are willing |
3955 | * to process is already limited to NOTIFY_BUFFER_MAX, this limit here should never be hit. */ | |
3956 | if (strlen(e) > STATUS_TEXT_MAX) | |
3957 | log_unit_warning(u, "Status message overly long (%zu > %u), ignoring.", strlen(e), STATUS_TEXT_MAX); | |
3958 | else if (!utf8_is_valid(e)) | |
3959 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean, ignoring."); | |
28849dba | 3960 | else { |
28849dba LP |
3961 | t = strdup(e); |
3962 | if (!t) | |
3963 | log_oom(); | |
3a2776bc | 3964 | } |
28849dba | 3965 | } |
8c47c732 | 3966 | |
30b5275a | 3967 | if (!streq_ptr(s->status_text, t)) { |
3b319885 | 3968 | free_and_replace(s->status_text, t); |
30b5275a | 3969 | notify_dbus = true; |
28849dba | 3970 | } |
8c47c732 | 3971 | } |
842129f5 | 3972 | |
4774e357 | 3973 | /* Interpret ERRNO= */ |
28849dba | 3974 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
3975 | if (e) { |
3976 | int status_errno; | |
3977 | ||
2fa40742 LP |
3978 | status_errno = parse_errno(e); |
3979 | if (status_errno < 0) | |
3980 | log_unit_warning_errno(u, status_errno, | |
5e1ee764 | 3981 | "Failed to parse ERRNO= field value '%s' in notification message: %m", e); |
2fa40742 LP |
3982 | else if (s->status_errno != status_errno) { |
3983 | s->status_errno = status_errno; | |
3984 | notify_dbus = true; | |
4774e357 MAA |
3985 | } |
3986 | } | |
3987 | ||
a327431b DB |
3988 | /* Interpret EXTEND_TIMEOUT= */ |
3989 | e = strv_find_startswith(tags, "EXTEND_TIMEOUT_USEC="); | |
3990 | if (e) { | |
3991 | usec_t extend_timeout_usec; | |
3992 | if (safe_atou64(e, &extend_timeout_usec) < 0) | |
3993 | log_unit_warning(u, "Failed to parse EXTEND_TIMEOUT_USEC=%s", e); | |
3994 | else | |
3995 | service_extend_timeout(s, extend_timeout_usec); | |
3996 | } | |
3997 | ||
6f285378 | 3998 | /* Interpret WATCHDOG= */ |
99b43caf JK |
3999 | e = strv_find_startswith(tags, "WATCHDOG="); |
4000 | if (e) { | |
4001 | if (streq(e, "1")) | |
4002 | service_reset_watchdog(s); | |
4003 | else if (streq(e, "trigger")) | |
4004 | service_force_watchdog(s); | |
4005 | else | |
4006 | log_unit_warning(u, "Passed WATCHDOG= field is invalid, ignoring."); | |
4007 | } | |
c4e2ceae | 4008 | |
c45d11cb LP |
4009 | e = strv_find_startswith(tags, "WATCHDOG_USEC="); |
4010 | if (e) { | |
4011 | usec_t watchdog_override_usec; | |
4012 | if (safe_atou64(e, &watchdog_override_usec) < 0) | |
4013 | log_unit_warning(u, "Failed to parse WATCHDOG_USEC=%s", e); | |
4014 | else | |
95d0d8ed | 4015 | service_override_watchdog_timeout(s, watchdog_override_usec); |
c45d11cb LP |
4016 | } |
4017 | ||
e78ee06d LP |
4018 | /* Process FD store messages. Either FDSTOREREMOVE=1 for removal, or FDSTORE=1 for addition. In both cases, |
4019 | * process FDNAME= for picking the file descriptor name to use. Note that FDNAME= is required when removing | |
4020 | * fds, but optional when pushing in new fds, for compatibility reasons. */ | |
4021 | if (strv_find(tags, "FDSTOREREMOVE=1")) { | |
4022 | const char *name; | |
4023 | ||
4024 | name = strv_find_startswith(tags, "FDNAME="); | |
4025 | if (!name || !fdname_is_valid(name)) | |
4026 | log_unit_warning(u, "FDSTOREREMOVE=1 requested, but no valid file descriptor name passed, ignoring."); | |
4027 | else | |
4028 | service_remove_fd_store(s, name); | |
4029 | ||
4030 | } else if (strv_find(tags, "FDSTORE=1")) { | |
8dd4c05b LP |
4031 | const char *name; |
4032 | ||
4033 | name = strv_find_startswith(tags, "FDNAME="); | |
4034 | if (name && !fdname_is_valid(name)) { | |
4035 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
4036 | name = NULL; | |
4037 | } | |
4038 | ||
e78ee06d | 4039 | (void) service_add_fd_store_set(s, fds, name); |
8dd4c05b | 4040 | } |
a354329f | 4041 | |
c4e2ceae | 4042 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
4043 | if (notify_dbus) |
4044 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
4045 | } |
4046 | ||
7a7821c8 | 4047 | static int service_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 4048 | Service *s = SERVICE(u); |
7a7821c8 | 4049 | uint64_t t; |
68db7a3b ZJS |
4050 | int r; |
4051 | ||
4052 | if (!s->timer_event_source) | |
4053 | return 0; | |
4054 | ||
7a7821c8 | 4055 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
4056 | if (r < 0) |
4057 | return r; | |
7a7821c8 LP |
4058 | if (t == USEC_INFINITY) |
4059 | return 0; | |
68db7a3b | 4060 | |
7a7821c8 | 4061 | *timeout = t; |
68db7a3b ZJS |
4062 | return 1; |
4063 | } | |
4064 | ||
fc67a943 | 4065 | static void service_bus_name_owner_change(Unit *u, const char *new_owner) { |
05e343b7 LP |
4066 | |
4067 | Service *s = SERVICE(u); | |
718db961 | 4068 | int r; |
05e343b7 LP |
4069 | |
4070 | assert(s); | |
05e343b7 | 4071 | |
fc67a943 LP |
4072 | if (new_owner) |
4073 | log_unit_debug(u, "D-Bus name %s now owned by %s", s->bus_name, new_owner); | |
05e343b7 | 4074 | else |
fc67a943 | 4075 | log_unit_debug(u, "D-Bus name %s now not owned by anyone.", s->bus_name); |
05e343b7 LP |
4076 | |
4077 | s->bus_name_good = !!new_owner; | |
4078 | ||
d8ccf5fd DM |
4079 | /* Track the current owner, so we can reconstruct changes after a daemon reload */ |
4080 | r = free_and_strdup(&s->bus_name_owner, new_owner); | |
4081 | if (r < 0) { | |
4082 | log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner); | |
4083 | return; | |
4084 | } | |
4085 | ||
05e343b7 LP |
4086 | if (s->type == SERVICE_DBUS) { |
4087 | ||
4088 | /* service_enter_running() will figure out what to | |
4089 | * do */ | |
4090 | if (s->state == SERVICE_RUNNING) | |
f42806df | 4091 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
4092 | else if (s->state == SERVICE_START && new_owner) |
4093 | service_enter_start_post(s); | |
4094 | ||
4095 | } else if (new_owner && | |
4096 | s->main_pid <= 0 && | |
a6951a50 LP |
4097 | IN_SET(s->state, |
4098 | SERVICE_START, | |
4099 | SERVICE_START_POST, | |
4100 | SERVICE_RUNNING, | |
4101 | SERVICE_RELOAD)) { | |
05e343b7 | 4102 | |
4afd3348 | 4103 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
718db961 | 4104 | pid_t pid; |
05e343b7 | 4105 | |
718db961 | 4106 | /* Try to acquire PID from bus service */ |
05e343b7 | 4107 | |
a5a8776a | 4108 | r = sd_bus_get_name_creds(u->manager->api_bus, s->bus_name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
4109 | if (r >= 0) |
4110 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 | 4111 | if (r >= 0) { |
a5a8776a | 4112 | log_unit_debug(u, "D-Bus name %s is now owned by process " PID_FMT, s->bus_name, pid); |
05e343b7 | 4113 | |
718db961 | 4114 | service_set_main_pid(s, pid); |
f75f613d | 4115 | unit_watch_pid(UNIT(s), pid, false); |
718db961 | 4116 | } |
7400b9d2 | 4117 | } |
05e343b7 LP |
4118 | } |
4119 | ||
16115b0a | 4120 | int service_set_socket_fd(Service *s, int fd, Socket *sock, bool selinux_context_net) { |
79a98c60 LP |
4121 | _cleanup_free_ char *peer = NULL; |
4122 | int r; | |
57020a3a | 4123 | |
4f2d528d LP |
4124 | assert(s); |
4125 | assert(fd >= 0); | |
4126 | ||
7f2fbbff LP |
4127 | /* This is called by the socket code when instantiating a new service for a stream socket and the socket needs |
4128 | * to be configured. We take ownership of the passed fd on success. */ | |
4f2d528d | 4129 | |
1124fe6f | 4130 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
4131 | return -EINVAL; |
4132 | ||
4133 | if (s->socket_fd >= 0) | |
4134 | return -EBUSY; | |
4135 | ||
4136 | if (s->state != SERVICE_DEAD) | |
4137 | return -EAGAIN; | |
4138 | ||
366b7db4 | 4139 | if (getpeername_pretty(fd, true, &peer) >= 0) { |
79a98c60 LP |
4140 | |
4141 | if (UNIT(s)->description) { | |
4142 | _cleanup_free_ char *a; | |
4143 | ||
605405c6 | 4144 | a = strjoin(UNIT(s)->description, " (", peer, ")"); |
79a98c60 LP |
4145 | if (!a) |
4146 | return -ENOMEM; | |
4147 | ||
4148 | r = unit_set_description(UNIT(s), a); | |
4149 | } else | |
4150 | r = unit_set_description(UNIT(s), peer); | |
4151 | ||
4152 | if (r < 0) | |
4153 | return r; | |
4154 | } | |
4155 | ||
eef85c4a | 4156 | r = unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false, UNIT_DEPENDENCY_IMPLICIT); |
7f2fbbff LP |
4157 | if (r < 0) |
4158 | return r; | |
4159 | ||
4f2d528d | 4160 | s->socket_fd = fd; |
16115b0a | 4161 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 4162 | |
7f7d01ed | 4163 | unit_ref_set(&s->accept_socket, UNIT(s), UNIT(sock)); |
7f2fbbff | 4164 | return 0; |
4f2d528d LP |
4165 | } |
4166 | ||
fdf20a31 | 4167 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
4168 | Service *s = SERVICE(u); |
4169 | ||
4170 | assert(s); | |
4171 | ||
fdf20a31 | 4172 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
4173 | service_set_state(s, SERVICE_DEAD); |
4174 | ||
f42806df LP |
4175 | s->result = SERVICE_SUCCESS; |
4176 | s->reload_result = SERVICE_SUCCESS; | |
4c2f5842 | 4177 | s->clean_result = SERVICE_SUCCESS; |
7a0019d3 LP |
4178 | s->n_restarts = 0; |
4179 | s->flush_n_restarts = false; | |
5632e374 LP |
4180 | } |
4181 | ||
718db961 | 4182 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 4183 | Service *s = SERVICE(u); |
41efeaec | 4184 | |
a6951a50 LP |
4185 | assert(s); |
4186 | ||
814cc562 | 4187 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
4188 | } |
4189 | ||
291d565a LP |
4190 | static int service_main_pid(Unit *u) { |
4191 | Service *s = SERVICE(u); | |
4192 | ||
4193 | assert(s); | |
4194 | ||
4195 | return s->main_pid; | |
4196 | } | |
4197 | ||
4198 | static int service_control_pid(Unit *u) { | |
4199 | Service *s = SERVICE(u); | |
4200 | ||
4201 | assert(s); | |
4202 | ||
4203 | return s->control_pid; | |
4204 | } | |
4205 | ||
bb2c7685 LP |
4206 | static bool service_needs_console(Unit *u) { |
4207 | Service *s = SERVICE(u); | |
4208 | ||
4209 | assert(s); | |
4210 | ||
4211 | /* We provide our own implementation of this here, instead of relying of the generic implementation | |
4212 | * unit_needs_console() provides, since we want to return false if we are in SERVICE_EXITED state. */ | |
4213 | ||
4214 | if (!exec_context_may_touch_console(&s->exec_context)) | |
4215 | return false; | |
4216 | ||
4217 | return IN_SET(s->state, | |
31cd5f63 | 4218 | SERVICE_CONDITION, |
bb2c7685 LP |
4219 | SERVICE_START_PRE, |
4220 | SERVICE_START, | |
4221 | SERVICE_START_POST, | |
4222 | SERVICE_RUNNING, | |
4223 | SERVICE_RELOAD, | |
4224 | SERVICE_STOP, | |
c87700a1 | 4225 | SERVICE_STOP_WATCHDOG, |
bb2c7685 LP |
4226 | SERVICE_STOP_SIGTERM, |
4227 | SERVICE_STOP_SIGKILL, | |
4228 | SERVICE_STOP_POST, | |
4229 | SERVICE_FINAL_SIGTERM, | |
4230 | SERVICE_FINAL_SIGKILL); | |
4231 | } | |
4232 | ||
7af67e9a LP |
4233 | static int service_exit_status(Unit *u) { |
4234 | Service *s = SERVICE(u); | |
4235 | ||
4236 | assert(u); | |
4237 | ||
4238 | if (s->main_exec_status.pid <= 0 || | |
4239 | !dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) | |
4240 | return -ENODATA; | |
4241 | ||
4242 | if (s->main_exec_status.code != CLD_EXITED) | |
4243 | return -EBADE; | |
4244 | ||
4245 | return s->main_exec_status.status; | |
4246 | } | |
4247 | ||
4c2f5842 LP |
4248 | static int service_clean(Unit *u, ExecCleanMask mask) { |
4249 | _cleanup_strv_free_ char **l = NULL; | |
4250 | Service *s = SERVICE(u); | |
4c2f5842 LP |
4251 | int r; |
4252 | ||
4253 | assert(s); | |
4254 | assert(mask != 0); | |
4255 | ||
4256 | if (s->state != SERVICE_DEAD) | |
4257 | return -EBUSY; | |
4258 | ||
4259 | r = exec_context_get_clean_directories(&s->exec_context, u->manager->prefix, mask, &l); | |
4260 | if (r < 0) | |
4261 | return r; | |
4262 | ||
4263 | if (strv_isempty(l)) | |
4264 | return -EUNATCH; | |
4265 | ||
4266 | service_unwatch_control_pid(s); | |
4267 | s->clean_result = SERVICE_SUCCESS; | |
4268 | s->control_command = NULL; | |
4269 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
4270 | ||
12213aed | 4271 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->exec_context.timeout_clean_usec)); |
4c2f5842 LP |
4272 | if (r < 0) |
4273 | goto fail; | |
4274 | ||
810ef318 | 4275 | r = unit_fork_and_watch_rm_rf(u, l, &s->control_pid); |
4c2f5842 LP |
4276 | if (r < 0) |
4277 | goto fail; | |
4278 | ||
4c2f5842 LP |
4279 | service_set_state(s, SERVICE_CLEANING); |
4280 | ||
4281 | return 0; | |
4282 | ||
4283 | fail: | |
810ef318 | 4284 | log_unit_warning_errno(u, r, "Failed to initiate cleaning: %m"); |
4c2f5842 LP |
4285 | s->clean_result = SERVICE_FAILURE_RESOURCES; |
4286 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
4287 | return r; | |
4288 | } | |
4289 | ||
4290 | static int service_can_clean(Unit *u, ExecCleanMask *ret) { | |
4291 | Service *s = SERVICE(u); | |
4292 | ||
4293 | assert(s); | |
4294 | ||
4295 | return exec_context_get_clean_mask(&s->exec_context, ret); | |
4296 | } | |
4297 | ||
94f04347 | 4298 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
525ee6f4 LP |
4299 | [SERVICE_RESTART_NO] = "no", |
4300 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 4301 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 4302 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 4303 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 4304 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 4305 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
4306 | }; |
4307 | ||
4308 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
4309 | ||
4310 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 4311 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 4312 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 4313 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 4314 | [SERVICE_DBUS] = "dbus", |
f2b68789 | 4315 | [SERVICE_NOTIFY] = "notify", |
5686391b LP |
4316 | [SERVICE_IDLE] = "idle", |
4317 | [SERVICE_EXEC] = "exec", | |
94f04347 LP |
4318 | }; |
4319 | ||
4320 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
4321 | ||
e537352b | 4322 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
31cd5f63 | 4323 | [SERVICE_EXEC_CONDITION] = "ExecCondition", |
94f04347 LP |
4324 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
4325 | [SERVICE_EXEC_START] = "ExecStart", | |
4326 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
4327 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
4328 | [SERVICE_EXEC_STOP] = "ExecStop", | |
4329 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
4330 | }; | |
4331 | ||
4332 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
4333 | ||
b3d59367 | 4334 | static const char* const service_exec_ex_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
898fc00e | 4335 | [SERVICE_EXEC_CONDITION] = "ExecConditionEx", |
b3d59367 AZ |
4336 | [SERVICE_EXEC_START_PRE] = "ExecStartPreEx", |
4337 | [SERVICE_EXEC_START] = "ExecStartEx", | |
4338 | [SERVICE_EXEC_START_POST] = "ExecStartPostEx", | |
898fc00e AZ |
4339 | [SERVICE_EXEC_RELOAD] = "ExecReloadEx", |
4340 | [SERVICE_EXEC_STOP] = "ExecStopEx", | |
4341 | [SERVICE_EXEC_STOP_POST] = "ExecStopPostEx", | |
b3d59367 AZ |
4342 | }; |
4343 | ||
4344 | DEFINE_STRING_TABLE_LOOKUP(service_exec_ex_command, ServiceExecCommand); | |
4345 | ||
308d72dc LP |
4346 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
4347 | [NOTIFY_UNKNOWN] = "unknown", | |
4348 | [NOTIFY_READY] = "ready", | |
4349 | [NOTIFY_RELOADING] = "reloading", | |
4350 | [NOTIFY_STOPPING] = "stopping", | |
4351 | }; | |
4352 | ||
4353 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
4354 | ||
f42806df LP |
4355 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
4356 | [SERVICE_SUCCESS] = "success", | |
4357 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
c35755fb | 4358 | [SERVICE_FAILURE_PROTOCOL] = "protocol", |
f42806df LP |
4359 | [SERVICE_FAILURE_TIMEOUT] = "timeout", |
4360 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
4361 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 4362 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a | 4363 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
07299350 | 4364 | [SERVICE_FAILURE_START_LIMIT_HIT] = "start-limit-hit", |
afcfaa69 | 4365 | [SERVICE_FAILURE_OOM_KILL] = "oom-kill", |
31cd5f63 | 4366 | [SERVICE_SKIP_CONDITION] = "exec-condition", |
f42806df LP |
4367 | }; |
4368 | ||
4369 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
4370 | ||
87f0e418 | 4371 | const UnitVTable service_vtable = { |
7d17cfbc | 4372 | .object_size = sizeof(Service), |
718db961 LP |
4373 | .exec_context_offset = offsetof(Service, exec_context), |
4374 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
4375 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 4376 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
29206d46 | 4377 | .dynamic_creds_offset = offsetof(Service, dynamic_creds), |
3ef63c31 | 4378 | |
f975e971 LP |
4379 | .sections = |
4380 | "Unit\0" | |
4381 | "Service\0" | |
4382 | "Install\0", | |
4ad49000 | 4383 | .private_section = "Service", |
71645aca | 4384 | |
1d9cc876 LP |
4385 | .can_transient = true, |
4386 | .can_delegate = true, | |
4387 | ||
034c6ed7 LP |
4388 | .init = service_init, |
4389 | .done = service_done, | |
a16e1123 | 4390 | .load = service_load, |
a354329f | 4391 | .release_resources = service_release_resources, |
a16e1123 LP |
4392 | |
4393 | .coldplug = service_coldplug, | |
034c6ed7 | 4394 | |
5cb5a6ff LP |
4395 | .dump = service_dump, |
4396 | ||
4397 | .start = service_start, | |
4398 | .stop = service_stop, | |
4399 | .reload = service_reload, | |
4400 | ||
034c6ed7 LP |
4401 | .can_reload = service_can_reload, |
4402 | ||
8a0867d6 | 4403 | .kill = service_kill, |
4c2f5842 LP |
4404 | .clean = service_clean, |
4405 | .can_clean = service_can_clean, | |
8a0867d6 | 4406 | |
a16e1123 LP |
4407 | .serialize = service_serialize, |
4408 | .deserialize_item = service_deserialize_item, | |
4409 | ||
5cb5a6ff | 4410 | .active_state = service_active_state, |
10a94420 | 4411 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 4412 | |
deb4e708 MK |
4413 | .will_restart = service_will_restart, |
4414 | ||
f2f725e5 | 4415 | .may_gc = service_may_gc, |
701cc384 | 4416 | |
034c6ed7 | 4417 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 4418 | |
fdf20a31 | 4419 | .reset_failed = service_reset_failed, |
5632e374 | 4420 | |
4ad49000 | 4421 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
afcfaa69 | 4422 | .notify_cgroup_oom = service_notify_cgroup_oom_event, |
8c47c732 | 4423 | .notify_message = service_notify_message, |
8e274523 | 4424 | |
291d565a LP |
4425 | .main_pid = service_main_pid, |
4426 | .control_pid = service_control_pid, | |
4427 | ||
05e343b7 | 4428 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 4429 | |
718db961 | 4430 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
4431 | .bus_set_property = bus_service_set_property, |
4432 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 4433 | |
68db7a3b | 4434 | .get_timeout = service_get_timeout, |
bb2c7685 | 4435 | .needs_console = service_needs_console, |
7af67e9a | 4436 | .exit_status = service_exit_status, |
718db961 | 4437 | |
c6918296 MS |
4438 | .status_message_formats = { |
4439 | .starting_stopping = { | |
4440 | [0] = "Starting %s...", | |
4441 | [1] = "Stopping %s...", | |
4442 | }, | |
4443 | .finished_start_job = { | |
4444 | [JOB_DONE] = "Started %s.", | |
4445 | [JOB_FAILED] = "Failed to start %s.", | |
31cd5f63 | 4446 | [JOB_SKIPPED] = "Skipped %s.", |
c6918296 MS |
4447 | }, |
4448 | .finished_stop_job = { | |
4449 | [JOB_DONE] = "Stopped %s.", | |
4450 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 MS |
4451 | }, |
4452 | }, | |
5cb5a6ff | 4453 | }; |