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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
a7334b09 | 2 | |
5cb5a6ff | 3 | #include <errno.h> |
034c6ed7 | 4 | #include <signal.h> |
ca78ad1d ZJS |
5 | #include <sys/stat.h> |
6 | #include <sys/types.h> | |
2c4104f0 | 7 | #include <unistd.h> |
5cb5a6ff | 8 | |
7a0019d3 LP |
9 | #include "sd-messages.h" |
10 | ||
b5efdb8a | 11 | #include "alloc-util.h" |
574634bc | 12 | #include "async.h" |
4f5dd394 LP |
13 | #include "bus-error.h" |
14 | #include "bus-kernel.h" | |
15 | #include "bus-util.h" | |
4139c1b2 | 16 | #include "dbus-service.h" |
6fcbec6f | 17 | #include "dbus-unit.h" |
f6a6225e | 18 | #include "def.h" |
4d1a6904 | 19 | #include "env-util.h" |
4f5dd394 LP |
20 | #include "escape.h" |
21 | #include "exit-status.h" | |
3ffd4af2 | 22 | #include "fd-util.h" |
a5c32cff | 23 | #include "fileio.h" |
f97b34a6 | 24 | #include "format-util.h" |
f4f15635 | 25 | #include "fs-util.h" |
4f5dd394 LP |
26 | #include "load-dropin.h" |
27 | #include "load-fragment.h" | |
28 | #include "log.h" | |
29 | #include "manager.h" | |
6bedfcbb | 30 | #include "parse-util.h" |
4f5dd394 | 31 | #include "path-util.h" |
0b452006 | 32 | #include "process-util.h" |
d68c645b | 33 | #include "serialize.h" |
3ffd4af2 | 34 | #include "service.h" |
24882e06 | 35 | #include "signal-util.h" |
4f5dd394 | 36 | #include "special.h" |
e266c068 | 37 | #include "stdio-util.h" |
8b43440b | 38 | #include "string-table.h" |
07630cea | 39 | #include "string-util.h" |
4f5dd394 LP |
40 | #include "strv.h" |
41 | #include "unit-name.h" | |
4f5dd394 LP |
42 | #include "unit.h" |
43 | #include "utf8.h" | |
44 | #include "util.h" | |
034c6ed7 | 45 | |
acbb0225 | 46 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 | 47 | [SERVICE_DEAD] = UNIT_INACTIVE, |
31cd5f63 | 48 | [SERVICE_CONDITION] = UNIT_ACTIVATING, |
87f0e418 LP |
49 | [SERVICE_START_PRE] = UNIT_ACTIVATING, |
50 | [SERVICE_START] = UNIT_ACTIVATING, | |
51 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
52 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 53 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 54 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 | 55 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
c87700a1 | 56 | [SERVICE_STOP_WATCHDOG] = UNIT_DEACTIVATING, |
87f0e418 LP |
57 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
58 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
59 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
60 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
61 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 62 | [SERVICE_FAILED] = UNIT_FAILED, |
4c2f5842 LP |
63 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, |
64 | [SERVICE_CLEANING] = UNIT_MAINTENANCE, | |
034c6ed7 | 65 | }; |
5cb5a6ff | 66 | |
e056b01d LP |
67 | /* For Type=idle we never want to delay any other jobs, hence we |
68 | * consider idle jobs active as soon as we start working on them */ | |
69 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
70 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
31cd5f63 | 71 | [SERVICE_CONDITION] = UNIT_ACTIVE, |
e056b01d LP |
72 | [SERVICE_START_PRE] = UNIT_ACTIVE, |
73 | [SERVICE_START] = UNIT_ACTIVE, | |
74 | [SERVICE_START_POST] = UNIT_ACTIVE, | |
75 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
76 | [SERVICE_EXITED] = UNIT_ACTIVE, | |
77 | [SERVICE_RELOAD] = UNIT_RELOADING, | |
78 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
c87700a1 | 79 | [SERVICE_STOP_WATCHDOG] = UNIT_DEACTIVATING, |
e056b01d LP |
80 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
81 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
82 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
83 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
84 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
85 | [SERVICE_FAILED] = UNIT_FAILED, | |
4c2f5842 LP |
86 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, |
87 | [SERVICE_CLEANING] = UNIT_MAINTENANCE, | |
e056b01d LP |
88 | }; |
89 | ||
5686391b | 90 | static int service_dispatch_inotify_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
718db961 LP |
91 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); |
92 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); | |
5686391b | 93 | static int service_dispatch_exec_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
718db961 | 94 | |
842129f5 | 95 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
308d72dc | 96 | static void service_enter_reload_by_notify(Service *s); |
842129f5 | 97 | |
a16e1123 LP |
98 | static void service_init(Unit *u) { |
99 | Service *s = SERVICE(u); | |
100 | ||
101 | assert(u); | |
ac155bb8 | 102 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 103 | |
1f19a534 OS |
104 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
105 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
dc653bf4 JK |
106 | s->timeout_abort_usec = u->manager->default_timeout_abort_usec; |
107 | s->timeout_abort_set = u->manager->default_timeout_abort_set; | |
1f19a534 | 108 | s->restart_usec = u->manager->default_restart_usec; |
36c16a7c | 109 | s->runtime_max_usec = USEC_INFINITY; |
0b86feac | 110 | s->type = _SERVICE_TYPE_INVALID; |
a16e1123 | 111 | s->socket_fd = -1; |
a34ceba6 | 112 | s->stdin_fd = s->stdout_fd = s->stderr_fd = -1; |
3185a36b | 113 | s->guess_main_pid = true; |
a16e1123 | 114 | |
a16e1123 | 115 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
00f5ad93 LP |
116 | |
117 | s->exec_context.keyring_mode = MANAGER_IS_SYSTEM(u->manager) ? | |
118 | EXEC_KEYRING_PRIVATE : EXEC_KEYRING_INHERIT; | |
aa8c4bbf LP |
119 | |
120 | s->watchdog_original_usec = USEC_INFINITY; | |
afcfaa69 LP |
121 | |
122 | s->oom_policy = _OOM_POLICY_INVALID; | |
a16e1123 LP |
123 | } |
124 | ||
5e94833f LP |
125 | static void service_unwatch_control_pid(Service *s) { |
126 | assert(s); | |
127 | ||
128 | if (s->control_pid <= 0) | |
129 | return; | |
130 | ||
131 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
132 | s->control_pid = 0; | |
133 | } | |
134 | ||
135 | static void service_unwatch_main_pid(Service *s) { | |
136 | assert(s); | |
137 | ||
138 | if (s->main_pid <= 0) | |
139 | return; | |
140 | ||
141 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
142 | s->main_pid = 0; | |
143 | } | |
144 | ||
3e52541e MS |
145 | static void service_unwatch_pid_file(Service *s) { |
146 | if (!s->pid_file_pathspec) | |
147 | return; | |
148 | ||
f2341e0a | 149 | log_unit_debug(UNIT(s), "Stopping watch for PID file %s", s->pid_file_pathspec->path); |
718db961 | 150 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e | 151 | path_spec_done(s->pid_file_pathspec); |
a1e58e8e | 152 | s->pid_file_pathspec = mfree(s->pid_file_pathspec); |
3e52541e MS |
153 | } |
154 | ||
5925dd3c LP |
155 | static int service_set_main_pid(Service *s, pid_t pid) { |
156 | assert(s); | |
157 | ||
158 | if (pid <= 1) | |
159 | return -EINVAL; | |
160 | ||
df0ff127 | 161 | if (pid == getpid_cached()) |
5925dd3c LP |
162 | return -EINVAL; |
163 | ||
7400b9d2 LP |
164 | if (s->main_pid == pid && s->main_pid_known) |
165 | return 0; | |
166 | ||
167 | if (s->main_pid != pid) { | |
168 | service_unwatch_main_pid(s); | |
169 | exec_status_start(&s->main_exec_status, pid); | |
170 | } | |
41efeaec | 171 | |
6dfa5494 LP |
172 | s->main_pid = pid; |
173 | s->main_pid_known = true; | |
4d051546 | 174 | s->main_pid_alien = pid_is_my_child(pid) == 0; |
6dfa5494 | 175 | |
4d051546 | 176 | if (s->main_pid_alien) |
f2341e0a | 177 | log_unit_warning(UNIT(s), "Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.", pid); |
5925dd3c LP |
178 | |
179 | return 0; | |
180 | } | |
181 | ||
3e7a1f50 | 182 | void service_close_socket_fd(Service *s) { |
4f2d528d LP |
183 | assert(s); |
184 | ||
5cc3985e | 185 | /* Undo the effect of service_set_socket_fd(). */ |
4f2d528d | 186 | |
5cc3985e | 187 | s->socket_fd = asynchronous_close(s->socket_fd); |
6cf6bbc2 | 188 | |
5cc3985e LP |
189 | if (UNIT_ISSET(s->accept_socket)) { |
190 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); | |
191 | unit_ref_unset(&s->accept_socket); | |
192 | } | |
6cf6bbc2 LP |
193 | } |
194 | ||
a6927d7f MO |
195 | static void service_stop_watchdog(Service *s) { |
196 | assert(s); | |
197 | ||
718db961 | 198 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
842129f5 | 199 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
200 | } |
201 | ||
2787d83c M |
202 | static usec_t service_get_watchdog_usec(Service *s) { |
203 | assert(s); | |
204 | ||
205 | if (s->watchdog_override_enable) | |
206 | return s->watchdog_override_usec; | |
9fb1cdb4 LP |
207 | |
208 | return s->watchdog_original_usec; | |
2787d83c M |
209 | } |
210 | ||
842129f5 | 211 | static void service_start_watchdog(Service *s) { |
2787d83c | 212 | usec_t watchdog_usec; |
9fb1cdb4 | 213 | int r; |
bb242b7b MO |
214 | |
215 | assert(s); | |
216 | ||
2787d83c | 217 | watchdog_usec = service_get_watchdog_usec(s); |
9fb1cdb4 LP |
218 | if (IN_SET(watchdog_usec, 0, USEC_INFINITY)) { |
219 | service_stop_watchdog(s); | |
bb242b7b | 220 | return; |
9fb1cdb4 | 221 | } |
bb242b7b | 222 | |
718db961 | 223 | if (s->watchdog_event_source) { |
2787d83c | 224 | r = sd_event_source_set_time(s->watchdog_event_source, usec_add(s->watchdog_timestamp.monotonic, watchdog_usec)); |
718db961 | 225 | if (r < 0) { |
f2341e0a | 226 | log_unit_warning_errno(UNIT(s), r, "Failed to reset watchdog timer: %m"); |
718db961 LP |
227 | return; |
228 | } | |
229 | ||
842129f5 | 230 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 231 | } else { |
6a0f1f6d LP |
232 | r = sd_event_add_time( |
233 | UNIT(s)->manager->event, | |
234 | &s->watchdog_event_source, | |
235 | CLOCK_MONOTONIC, | |
2787d83c | 236 | usec_add(s->watchdog_timestamp.monotonic, watchdog_usec), 0, |
6a0f1f6d | 237 | service_dispatch_watchdog, s); |
c4ef3317 | 238 | if (r < 0) { |
f2341e0a | 239 | log_unit_warning_errno(UNIT(s), r, "Failed to add watchdog timer: %m"); |
c4ef3317 LP |
240 | return; |
241 | } | |
242 | ||
7dfbe2e3 TG |
243 | (void) sd_event_source_set_description(s->watchdog_event_source, "service-watchdog"); |
244 | ||
c4ef3317 LP |
245 | /* Let's process everything else which might be a sign |
246 | * of living before we consider a service died. */ | |
247 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
248 | } | |
bb242b7b | 249 | if (r < 0) |
f2341e0a | 250 | log_unit_warning_errno(UNIT(s), r, "Failed to install watchdog timer: %m"); |
bb242b7b MO |
251 | } |
252 | ||
ec35a7f6 LP |
253 | static void service_extend_event_source_timeout(Service *s, sd_event_source *source, usec_t extended) { |
254 | usec_t current; | |
255 | int r; | |
256 | ||
a327431b DB |
257 | assert(s); |
258 | ||
ec35a7f6 LP |
259 | /* Extends the specified event source timer to at least the specified time, unless it is already later |
260 | * anyway. */ | |
a327431b | 261 | |
ec35a7f6 LP |
262 | if (!source) |
263 | return; | |
a327431b | 264 | |
ec35a7f6 LP |
265 | r = sd_event_source_get_time(source, ¤t); |
266 | if (r < 0) { | |
267 | const char *desc; | |
268 | (void) sd_event_source_get_description(s->timer_event_source, &desc); | |
269 | log_unit_warning_errno(UNIT(s), r, "Failed to retrieve timeout time for event source '%s', ignoring: %m", strna(desc)); | |
270 | return; | |
271 | } | |
a327431b | 272 | |
ec35a7f6 LP |
273 | if (current >= extended) /* Current timeout is already longer, ignore this. */ |
274 | return; | |
a327431b | 275 | |
ec35a7f6 LP |
276 | r = sd_event_source_set_time(source, extended); |
277 | if (r < 0) { | |
278 | const char *desc; | |
279 | (void) sd_event_source_get_description(s->timer_event_source, &desc); | |
280 | log_unit_warning_errno(UNIT(s), r, "Failed to set timeout time for even source '%s', ignoring %m", strna(desc)); | |
a327431b DB |
281 | } |
282 | } | |
283 | ||
ec35a7f6 LP |
284 | static void service_extend_timeout(Service *s, usec_t extend_timeout_usec) { |
285 | usec_t extended; | |
286 | ||
287 | assert(s); | |
288 | ||
289 | if (IN_SET(extend_timeout_usec, 0, USEC_INFINITY)) | |
290 | return; | |
291 | ||
292 | extended = usec_add(now(CLOCK_MONOTONIC), extend_timeout_usec); | |
293 | ||
294 | service_extend_event_source_timeout(s, s->timer_event_source, extended); | |
295 | service_extend_event_source_timeout(s, s->watchdog_event_source, extended); | |
296 | } | |
297 | ||
a6927d7f MO |
298 | static void service_reset_watchdog(Service *s) { |
299 | assert(s); | |
300 | ||
301 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 302 | service_start_watchdog(s); |
a6927d7f MO |
303 | } |
304 | ||
95d0d8ed | 305 | static void service_override_watchdog_timeout(Service *s, usec_t watchdog_override_usec) { |
2787d83c M |
306 | assert(s); |
307 | ||
308 | s->watchdog_override_enable = true; | |
309 | s->watchdog_override_usec = watchdog_override_usec; | |
310 | service_reset_watchdog(s); | |
311 | ||
312 | log_unit_debug(UNIT(s), "watchdog_usec="USEC_FMT, s->watchdog_usec); | |
313 | log_unit_debug(UNIT(s), "watchdog_override_usec="USEC_FMT, s->watchdog_override_usec); | |
314 | } | |
315 | ||
a354329f LP |
316 | static void service_fd_store_unlink(ServiceFDStore *fs) { |
317 | ||
318 | if (!fs) | |
319 | return; | |
320 | ||
321 | if (fs->service) { | |
322 | assert(fs->service->n_fd_store > 0); | |
323 | LIST_REMOVE(fd_store, fs->service->fd_store, fs); | |
324 | fs->service->n_fd_store--; | |
325 | } | |
326 | ||
1d3fe304 | 327 | sd_event_source_disable_unref(fs->event_source); |
a354329f | 328 | |
8dd4c05b | 329 | free(fs->fdname); |
a354329f LP |
330 | safe_close(fs->fd); |
331 | free(fs); | |
332 | } | |
333 | ||
f0bfbfac ZJS |
334 | static void service_release_fd_store(Service *s) { |
335 | assert(s); | |
336 | ||
7eb2a8a1 LP |
337 | if (s->n_keep_fd_store > 0) |
338 | return; | |
339 | ||
f0bfbfac ZJS |
340 | log_unit_debug(UNIT(s), "Releasing all stored fds"); |
341 | while (s->fd_store) | |
342 | service_fd_store_unlink(s->fd_store); | |
343 | ||
344 | assert(s->n_fd_store == 0); | |
345 | } | |
346 | ||
7eb2a8a1 | 347 | static void service_release_resources(Unit *u) { |
a354329f LP |
348 | Service *s = SERVICE(u); |
349 | ||
350 | assert(s); | |
351 | ||
a34ceba6 | 352 | if (!s->fd_store && s->stdin_fd < 0 && s->stdout_fd < 0 && s->stderr_fd < 0) |
a354329f LP |
353 | return; |
354 | ||
f0bfbfac | 355 | log_unit_debug(u, "Releasing resources."); |
a354329f | 356 | |
a34ceba6 LP |
357 | s->stdin_fd = safe_close(s->stdin_fd); |
358 | s->stdout_fd = safe_close(s->stdout_fd); | |
359 | s->stderr_fd = safe_close(s->stderr_fd); | |
360 | ||
7eb2a8a1 | 361 | service_release_fd_store(s); |
a354329f LP |
362 | } |
363 | ||
87f0e418 LP |
364 | static void service_done(Unit *u) { |
365 | Service *s = SERVICE(u); | |
44d8db9e LP |
366 | |
367 | assert(s); | |
368 | ||
a1e58e8e LP |
369 | s->pid_file = mfree(s->pid_file); |
370 | s->status_text = mfree(s->status_text); | |
efe6e7d3 | 371 | |
e8a565cb | 372 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, false); |
e537352b | 373 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 374 | s->control_command = NULL; |
867b3b7d | 375 | s->main_command = NULL; |
44d8db9e | 376 | |
29206d46 LP |
377 | dynamic_creds_unref(&s->dynamic_creds); |
378 | ||
37520c1b LP |
379 | exit_status_set_free(&s->restart_prevent_status); |
380 | exit_status_set_free(&s->restart_force_status); | |
381 | exit_status_set_free(&s->success_status); | |
96342de6 | 382 | |
44d8db9e LP |
383 | /* This will leak a process, but at least no memory or any of |
384 | * our resources */ | |
5e94833f LP |
385 | service_unwatch_main_pid(s); |
386 | service_unwatch_control_pid(s); | |
3e52541e | 387 | service_unwatch_pid_file(s); |
44d8db9e | 388 | |
05e343b7 | 389 | if (s->bus_name) { |
ac155bb8 | 390 | unit_unwatch_bus_name(u, s->bus_name); |
a1e58e8e | 391 | s->bus_name = mfree(s->bus_name); |
05e343b7 LP |
392 | } |
393 | ||
d8ccf5fd DM |
394 | s->bus_name_owner = mfree(s->bus_name_owner); |
395 | ||
064c5938 ZJS |
396 | s->usb_function_descriptors = mfree(s->usb_function_descriptors); |
397 | s->usb_function_strings = mfree(s->usb_function_strings); | |
398 | ||
4f2d528d | 399 | service_close_socket_fd(s); |
9d565427 | 400 | s->peer = socket_peer_unref(s->peer); |
4f2d528d | 401 | |
57020a3a | 402 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 403 | |
bb242b7b MO |
404 | service_stop_watchdog(s); |
405 | ||
718db961 | 406 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
5686391b | 407 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); |
a354329f | 408 | |
7eb2a8a1 | 409 | service_release_resources(u); |
718db961 LP |
410 | } |
411 | ||
2339fc93 LP |
412 | static int on_fd_store_io(sd_event_source *e, int fd, uint32_t revents, void *userdata) { |
413 | ServiceFDStore *fs = userdata; | |
414 | ||
415 | assert(e); | |
416 | assert(fs); | |
417 | ||
418 | /* If we get either EPOLLHUP or EPOLLERR, it's time to remove this entry from the fd store */ | |
16f70d63 ZJS |
419 | log_unit_debug(UNIT(fs->service), |
420 | "Received %s on stored fd %d (%s), closing.", | |
421 | revents & EPOLLERR ? "EPOLLERR" : "EPOLLHUP", | |
422 | fs->fd, strna(fs->fdname)); | |
2339fc93 LP |
423 | service_fd_store_unlink(fs); |
424 | return 0; | |
425 | } | |
426 | ||
8dd4c05b | 427 | static int service_add_fd_store(Service *s, int fd, const char *name) { |
2339fc93 LP |
428 | ServiceFDStore *fs; |
429 | int r; | |
430 | ||
9021ff17 ZJS |
431 | /* fd is always consumed if we return >= 0 */ |
432 | ||
2339fc93 LP |
433 | assert(s); |
434 | assert(fd >= 0); | |
435 | ||
436 | if (s->n_fd_store >= s->n_fd_store_max) | |
b0924635 ZJS |
437 | return -EXFULL; /* Our store is full. |
438 | * Use this errno rather than E[NM]FILE to distinguish from | |
439 | * the case where systemd itself hits the file limit. */ | |
2339fc93 LP |
440 | |
441 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
442 | r = same_fd(fs->fd, fd); | |
443 | if (r < 0) | |
444 | return r; | |
445 | if (r > 0) { | |
2339fc93 | 446 | safe_close(fd); |
9021ff17 | 447 | return 0; /* fd already included */ |
2339fc93 LP |
448 | } |
449 | } | |
450 | ||
451 | fs = new0(ServiceFDStore, 1); | |
452 | if (!fs) | |
453 | return -ENOMEM; | |
454 | ||
455 | fs->fd = fd; | |
456 | fs->service = s; | |
8dd4c05b | 457 | fs->fdname = strdup(name ?: "stored"); |
17dec0f7 | 458 | if (!fs->fdname) { |
459 | free(fs); | |
8dd4c05b | 460 | return -ENOMEM; |
17dec0f7 | 461 | } |
2339fc93 LP |
462 | |
463 | r = sd_event_add_io(UNIT(s)->manager->event, &fs->event_source, fd, 0, on_fd_store_io, fs); | |
3ceb72e5 | 464 | if (r < 0 && r != -EPERM) { /* EPERM indicates fds that aren't pollable, which is OK */ |
8dd4c05b | 465 | free(fs->fdname); |
2339fc93 LP |
466 | free(fs); |
467 | return r; | |
3ceb72e5 LP |
468 | } else if (r >= 0) |
469 | (void) sd_event_source_set_description(fs->event_source, "service-fd-store"); | |
7dfbe2e3 | 470 | |
2339fc93 LP |
471 | LIST_PREPEND(fd_store, s->fd_store, fs); |
472 | s->n_fd_store++; | |
473 | ||
9021ff17 | 474 | return 1; /* fd newly stored */ |
2339fc93 LP |
475 | } |
476 | ||
8dd4c05b | 477 | static int service_add_fd_store_set(Service *s, FDSet *fds, const char *name) { |
2339fc93 LP |
478 | int r; |
479 | ||
480 | assert(s); | |
481 | ||
b0924635 | 482 | while (fdset_size(fds) > 0) { |
2339fc93 LP |
483 | _cleanup_close_ int fd = -1; |
484 | ||
485 | fd = fdset_steal_first(fds); | |
486 | if (fd < 0) | |
487 | break; | |
488 | ||
8dd4c05b | 489 | r = service_add_fd_store(s, fd, name); |
b0924635 ZJS |
490 | if (r == -EXFULL) |
491 | return log_unit_warning_errno(UNIT(s), r, | |
492 | "Cannot store more fds than FileDescriptorStoreMax=%u, closing remaining.", | |
493 | s->n_fd_store_max); | |
2339fc93 | 494 | if (r < 0) |
b0924635 | 495 | return log_unit_error_errno(UNIT(s), r, "Failed to add fd to store: %m"); |
9021ff17 | 496 | if (r > 0) |
16f70d63 | 497 | log_unit_debug(UNIT(s), "Added fd %u (%s) to fd store.", fd, strna(name)); |
9021ff17 | 498 | fd = -1; |
2339fc93 LP |
499 | } |
500 | ||
2339fc93 LP |
501 | return 0; |
502 | } | |
503 | ||
e78ee06d LP |
504 | static void service_remove_fd_store(Service *s, const char *name) { |
505 | ServiceFDStore *fs, *n; | |
506 | ||
507 | assert(s); | |
508 | assert(name); | |
509 | ||
510 | LIST_FOREACH_SAFE(fd_store, fs, n, s->fd_store) { | |
511 | if (!streq(fs->fdname, name)) | |
512 | continue; | |
513 | ||
514 | log_unit_debug(UNIT(s), "Got explicit request to remove fd %i (%s), closing.", fs->fd, name); | |
515 | service_fd_store_unlink(fs); | |
516 | } | |
517 | } | |
518 | ||
718db961 LP |
519 | static int service_arm_timer(Service *s, usec_t usec) { |
520 | int r; | |
521 | ||
522 | assert(s); | |
523 | ||
718db961 | 524 | if (s->timer_event_source) { |
36c16a7c | 525 | r = sd_event_source_set_time(s->timer_event_source, usec); |
718db961 LP |
526 | if (r < 0) |
527 | return r; | |
528 | ||
529 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
530 | } | |
531 | ||
36c16a7c LP |
532 | if (usec == USEC_INFINITY) |
533 | return 0; | |
534 | ||
7dfbe2e3 | 535 | r = sd_event_add_time( |
6a0f1f6d LP |
536 | UNIT(s)->manager->event, |
537 | &s->timer_event_source, | |
538 | CLOCK_MONOTONIC, | |
36c16a7c | 539 | usec, 0, |
6a0f1f6d | 540 | service_dispatch_timer, s); |
7dfbe2e3 TG |
541 | if (r < 0) |
542 | return r; | |
543 | ||
544 | (void) sd_event_source_set_description(s->timer_event_source, "service-timer"); | |
545 | ||
546 | return 0; | |
44d8db9e LP |
547 | } |
548 | ||
243b1432 LP |
549 | static int service_verify(Service *s) { |
550 | assert(s); | |
551 | ||
1124fe6f | 552 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
553 | return 0; |
554 | ||
3f00d379 ZJS |
555 | if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP] |
556 | && UNIT(s)->success_action == EMERGENCY_ACTION_NONE) { | |
557 | /* FailureAction= only makes sense if one of the start or stop commands is specified. | |
558 | * SuccessAction= will be executed unconditionally if no commands are specified. Hence, | |
559 | * either a command or SuccessAction= are required. */ | |
560 | ||
561 | log_unit_error(UNIT(s), "Service has no ExecStart=, ExecStop=, or SuccessAction=. Refusing."); | |
6f40aa45 | 562 | return -ENOEXEC; |
243b1432 LP |
563 | } |
564 | ||
96fb8242 | 565 | if (s->type != SERVICE_ONESHOT && !s->exec_command[SERVICE_EXEC_START]) { |
f2341e0a | 566 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 567 | return -ENOEXEC; |
96fb8242 LP |
568 | } |
569 | ||
3f00d379 ZJS |
570 | if (!s->remain_after_exit && !s->exec_command[SERVICE_EXEC_START] && UNIT(s)->success_action == EMERGENCY_ACTION_NONE) { |
571 | log_unit_error(UNIT(s), "Service has no ExecStart= and no SuccessAction= settings and does not have RemainAfterExit=yes set. Refusing."); | |
6f40aa45 | 572 | return -ENOEXEC; |
96fb8242 LP |
573 | } |
574 | ||
575 | if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) { | |
f2341e0a | 576 | log_unit_error(UNIT(s), "Service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 577 | return -ENOEXEC; |
6cf6bbc2 LP |
578 | } |
579 | ||
10e72727 CZ |
580 | if (s->type == SERVICE_ONESHOT |
581 | && !IN_SET(s->restart, SERVICE_RESTART_NO, SERVICE_RESTART_ON_FAILURE, SERVICE_RESTART_ON_ABNORMAL, SERVICE_RESTART_ON_WATCHDOG, SERVICE_RESTART_ON_ABORT)) { | |
582 | 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 | 583 | return -ENOEXEC; |
37520c1b LP |
584 | } |
585 | ||
55ebf98c | 586 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) { |
f2341e0a | 587 | log_unit_error(UNIT(s), "Service has RestartForceStatus= set, which isn't allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 588 | return -ENOEXEC; |
b0693d30 MW |
589 | } |
590 | ||
05e343b7 | 591 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
f2341e0a | 592 | log_unit_error(UNIT(s), "Service is of type D-Bus but no D-Bus service name has been specified. Refusing."); |
6f40aa45 | 593 | return -ENOEXEC; |
4d0e5dbd LP |
594 | } |
595 | ||
7e2668c6 | 596 | if (s->bus_name && s->type != SERVICE_DBUS) |
f2341e0a | 597 | log_unit_warning(UNIT(s), "Service has a D-Bus service name specified, but is not of type dbus. Ignoring."); |
7e2668c6 | 598 | |
3742095b | 599 | if (s->exec_context.pam_name && !IN_SET(s->kill_context.kill_mode, KILL_CONTROL_GROUP, KILL_MIXED)) { |
f2341e0a | 600 | log_unit_error(UNIT(s), "Service has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing."); |
6f40aa45 | 601 | return -ENOEXEC; |
05e343b7 LP |
602 | } |
603 | ||
6b7e5923 PS |
604 | if (s->usb_function_descriptors && !s->usb_function_strings) |
605 | log_unit_warning(UNIT(s), "Service has USBFunctionDescriptors= setting, but no USBFunctionStrings=. Ignoring."); | |
606 | ||
607 | if (!s->usb_function_descriptors && s->usb_function_strings) | |
608 | log_unit_warning(UNIT(s), "Service has USBFunctionStrings= setting, but no USBFunctionDescriptors=. Ignoring."); | |
609 | ||
36c16a7c | 610 | if (s->runtime_max_usec != USEC_INFINITY && s->type == SERVICE_ONESHOT) |
226a08f2 | 611 | log_unit_warning(UNIT(s), "RuntimeMaxSec= has no effect in combination with Type=oneshot. Ignoring."); |
36c16a7c | 612 | |
243b1432 LP |
613 | return 0; |
614 | } | |
615 | ||
a40eb732 LP |
616 | static int service_add_default_dependencies(Service *s) { |
617 | int r; | |
618 | ||
619 | assert(s); | |
620 | ||
45f06b34 LP |
621 | if (!UNIT(s)->default_dependencies) |
622 | return 0; | |
623 | ||
a40eb732 LP |
624 | /* Add a number of automatic dependencies useful for the |
625 | * majority of services. */ | |
626 | ||
463d0d15 | 627 | if (MANAGER_IS_SYSTEM(UNIT(s)->manager)) { |
cb4c247d LP |
628 | /* First, pull in the really early boot stuff, and |
629 | * require it, so that we fail if we can't acquire | |
630 | * it. */ | |
631 | ||
5a724170 | 632 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
cb4c247d LP |
633 | if (r < 0) |
634 | return r; | |
635 | } else { | |
636 | ||
637 | /* In the --user instance there's no sysinit.target, | |
638 | * in that case require basic.target instead. */ | |
639 | ||
35d8c19a | 640 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
cb4c247d LP |
641 | if (r < 0) |
642 | return r; | |
643 | } | |
644 | ||
645 | /* Second, if the rest of the base system is in the same | |
646 | * transaction, order us after it, but do not pull it in or | |
647 | * even require it. */ | |
35d8c19a | 648 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
fccd44ec KS |
649 | if (r < 0) |
650 | return r; | |
a40eb732 | 651 | |
cb4c247d | 652 | /* Third, add us in for normal shutdown. */ |
5a724170 | 653 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
a40eb732 LP |
654 | } |
655 | ||
4dfc092a LP |
656 | static void service_fix_output(Service *s) { |
657 | assert(s); | |
658 | ||
08f3be7a LP |
659 | /* If nothing has been explicitly configured, patch default output in. If input is socket/tty we avoid this |
660 | * however, since in that case we want output to default to the same place as we read input from. */ | |
4dfc092a LP |
661 | |
662 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
663 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
664 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 665 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
666 | |
667 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
668 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 669 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
08f3be7a LP |
670 | |
671 | if (s->exec_context.std_input == EXEC_INPUT_NULL && | |
672 | s->exec_context.stdin_data_size > 0) | |
673 | s->exec_context.std_input = EXEC_INPUT_DATA; | |
4dfc092a LP |
674 | } |
675 | ||
45f06b34 LP |
676 | static int service_setup_bus_name(Service *s) { |
677 | int r; | |
678 | ||
679 | assert(s); | |
680 | ||
681 | if (!s->bus_name) | |
682 | return 0; | |
683 | ||
35d8c19a | 684 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, true, UNIT_DEPENDENCY_FILE); |
222953e8 DR |
685 | if (r < 0) |
686 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); | |
45f06b34 | 687 | |
a132bef0 | 688 | /* We always want to be ordered against dbus.socket if both are in the transaction. */ |
35d8c19a | 689 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_DBUS_SOCKET, true, UNIT_DEPENDENCY_FILE); |
45f06b34 | 690 | if (r < 0) |
92bed462 | 691 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); |
45f06b34 LP |
692 | |
693 | r = unit_watch_bus_name(UNIT(s), s->bus_name); | |
694 | if (r == -EEXIST) | |
695 | return log_unit_error_errno(UNIT(s), r, "Two services allocated for the same bus name %s, refusing operation.", s->bus_name); | |
696 | if (r < 0) | |
697 | return log_unit_error_errno(UNIT(s), r, "Cannot watch bus name %s: %m", s->bus_name); | |
698 | ||
699 | return 0; | |
700 | } | |
701 | ||
8545f7ce LP |
702 | static int service_add_extras(Service *s) { |
703 | int r; | |
704 | ||
705 | assert(s); | |
706 | ||
707 | if (s->type == _SERVICE_TYPE_INVALID) { | |
708 | /* Figure out a type automatically */ | |
709 | if (s->bus_name) | |
710 | s->type = SERVICE_DBUS; | |
711 | else if (s->exec_command[SERVICE_EXEC_START]) | |
712 | s->type = SERVICE_SIMPLE; | |
713 | else | |
714 | s->type = SERVICE_ONESHOT; | |
715 | } | |
716 | ||
717 | /* Oneshot services have disabled start timeout by default */ | |
718 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
36c16a7c | 719 | s->timeout_start_usec = USEC_INFINITY; |
8545f7ce LP |
720 | |
721 | service_fix_output(s); | |
722 | ||
723 | r = unit_patch_contexts(UNIT(s)); | |
724 | if (r < 0) | |
725 | return r; | |
726 | ||
727 | r = unit_add_exec_dependencies(UNIT(s), &s->exec_context); | |
728 | if (r < 0) | |
729 | return r; | |
730 | ||
d79200e2 | 731 | r = unit_set_default_slice(UNIT(s)); |
8545f7ce LP |
732 | if (r < 0) |
733 | return r; | |
734 | ||
4330dc03 AJ |
735 | /* If the service needs the notify socket, let's enable it automatically. */ |
736 | if (s->notify_access == NOTIFY_NONE && | |
737 | (s->type == SERVICE_NOTIFY || s->watchdog_usec > 0 || s->n_fd_store_max > 0)) | |
8545f7ce LP |
738 | s->notify_access = NOTIFY_MAIN; |
739 | ||
afcfaa69 LP |
740 | /* If no OOM policy was explicitly set, then default to the configure default OOM policy. Except when |
741 | * delegation is on, in that case it we assume the payload knows better what to do and can process | |
5238e957 | 742 | * things in a more focused way. */ |
afcfaa69 LP |
743 | if (s->oom_policy < 0) |
744 | s->oom_policy = s->cgroup_context.delegate ? OOM_CONTINUE : UNIT(s)->manager->default_oom_policy; | |
745 | ||
746 | /* Let the kernel do the killing if that's requested. */ | |
747 | s->cgroup_context.memory_oom_group = s->oom_policy == OOM_KILL; | |
748 | ||
45f06b34 LP |
749 | r = service_add_default_dependencies(s); |
750 | if (r < 0) | |
751 | return r; | |
8545f7ce | 752 | |
45f06b34 LP |
753 | r = service_setup_bus_name(s); |
754 | if (r < 0) | |
755 | return r; | |
8545f7ce LP |
756 | |
757 | return 0; | |
758 | } | |
759 | ||
e537352b | 760 | static int service_load(Unit *u) { |
e537352b | 761 | Service *s = SERVICE(u); |
8bb2d17d | 762 | int r; |
e537352b LP |
763 | |
764 | assert(s); | |
1e2e8133 | 765 | |
5cb5a6ff | 766 | /* Load a .service file */ |
c2756a68 LP |
767 | r = unit_load_fragment(u); |
768 | if (r < 0) | |
5cb5a6ff LP |
769 | return r; |
770 | ||
23a177ef | 771 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 772 | if (u->load_state == UNIT_STUB) |
23a177ef | 773 | return -ENOENT; |
034c6ed7 | 774 | |
23a177ef | 775 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 776 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
777 | |
778 | /* We were able to load something, then let's add in | |
779 | * the dropin directories. */ | |
780 | r = unit_load_dropin(u); | |
781 | if (r < 0) | |
782 | return r; | |
783 | ||
8545f7ce LP |
784 | /* This is a new unit? Then let's add in some |
785 | * extras */ | |
786 | r = service_add_extras(s); | |
598459ce LP |
787 | if (r < 0) |
788 | return r; | |
8e274523 LP |
789 | } |
790 | ||
243b1432 | 791 | return service_verify(s); |
034c6ed7 LP |
792 | } |
793 | ||
87f0e418 | 794 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
4c2f5842 | 795 | char buf_restart[FORMAT_TIMESPAN_MAX], buf_start[FORMAT_TIMESPAN_MAX], buf_stop[FORMAT_TIMESPAN_MAX], |
12213aed | 796 | buf_runtime[FORMAT_TIMESPAN_MAX], buf_watchdog[FORMAT_TIMESPAN_MAX], buf_abort[FORMAT_TIMESPAN_MAX]; |
5cb5a6ff | 797 | ServiceExecCommand c; |
87f0e418 | 798 | Service *s = SERVICE(u); |
47be870b | 799 | const char *prefix2; |
5cb5a6ff LP |
800 | |
801 | assert(s); | |
802 | ||
4c940960 | 803 | prefix = strempty(prefix); |
63c372cb | 804 | prefix2 = strjoina(prefix, "\t"); |
44d8db9e | 805 | |
5cb5a6ff | 806 | fprintf(f, |
81a2b7ce | 807 | "%sService State: %s\n" |
f42806df LP |
808 | "%sResult: %s\n" |
809 | "%sReload Result: %s\n" | |
4c2f5842 | 810 | "%sClean Result: %s\n" |
81a2b7ce | 811 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 812 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 813 | "%sRemainAfterExit: %s\n" |
3185a36b | 814 | "%sGuessMainPID: %s\n" |
c952c6ec | 815 | "%sType: %s\n" |
2cf3143a | 816 | "%sRestart: %s\n" |
308d72dc | 817 | "%sNotifyAccess: %s\n" |
afcfaa69 LP |
818 | "%sNotifyState: %s\n" |
819 | "%sOOMPolicy: %s\n", | |
81a2b7ce | 820 | prefix, service_state_to_string(s->state), |
f42806df LP |
821 | prefix, service_result_to_string(s->result), |
822 | prefix, service_result_to_string(s->reload_result), | |
4c2f5842 | 823 | prefix, service_result_to_string(s->clean_result), |
81a2b7ce | 824 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 825 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 826 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 827 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 828 | prefix, service_type_to_string(s->type), |
2cf3143a | 829 | prefix, service_restart_to_string(s->restart), |
308d72dc | 830 | prefix, notify_access_to_string(s->notify_access), |
afcfaa69 LP |
831 | prefix, notify_state_to_string(s->notify_state), |
832 | prefix, oom_policy_to_string(s->oom_policy)); | |
5cb5a6ff | 833 | |
70123e68 LP |
834 | if (s->control_pid > 0) |
835 | fprintf(f, | |
ccd06097 ZJS |
836 | "%sControl PID: "PID_FMT"\n", |
837 | prefix, s->control_pid); | |
70123e68 LP |
838 | |
839 | if (s->main_pid > 0) | |
840 | fprintf(f, | |
ccd06097 | 841 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
842 | "%sMain PID Known: %s\n" |
843 | "%sMain PID Alien: %s\n", | |
ccd06097 | 844 | prefix, s->main_pid, |
6dfa5494 LP |
845 | prefix, yes_no(s->main_pid_known), |
846 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 847 | |
034c6ed7 LP |
848 | if (s->pid_file) |
849 | fprintf(f, | |
850 | "%sPIDFile: %s\n", | |
851 | prefix, s->pid_file); | |
852 | ||
05e343b7 LP |
853 | if (s->bus_name) |
854 | fprintf(f, | |
855 | "%sBusName: %s\n" | |
856 | "%sBus Name Good: %s\n", | |
857 | prefix, s->bus_name, | |
858 | prefix, yes_no(s->bus_name_good)); | |
859 | ||
9dfb64f8 ZJS |
860 | if (UNIT_ISSET(s->accept_socket)) |
861 | fprintf(f, | |
862 | "%sAccept Socket: %s\n", | |
863 | prefix, UNIT_DEREF(s->accept_socket)->id); | |
864 | ||
c9d41699 YW |
865 | fprintf(f, |
866 | "%sRestartSec: %s\n" | |
867 | "%sTimeoutStartSec: %s\n" | |
dcab85be | 868 | "%sTimeoutStopSec: %s\n", |
c9d41699 YW |
869 | prefix, format_timespan(buf_restart, sizeof(buf_restart), s->restart_usec, USEC_PER_SEC), |
870 | prefix, format_timespan(buf_start, sizeof(buf_start), s->timeout_start_usec, USEC_PER_SEC), | |
dcab85be YW |
871 | prefix, format_timespan(buf_stop, sizeof(buf_stop), s->timeout_stop_usec, USEC_PER_SEC)); |
872 | ||
873 | if (s->timeout_abort_set) | |
874 | fprintf(f, | |
875 | "%sTimeoutAbortSec: %s\n", | |
876 | prefix, format_timespan(buf_abort, sizeof(buf_abort), s->timeout_abort_usec, USEC_PER_SEC)); | |
877 | ||
878 | fprintf(f, | |
879 | "%sRuntimeMaxSec: %s\n" | |
880 | "%sWatchdogSec: %s\n", | |
c9d41699 YW |
881 | prefix, format_timespan(buf_runtime, sizeof(buf_runtime), s->runtime_max_usec, USEC_PER_SEC), |
882 | prefix, format_timespan(buf_watchdog, sizeof(buf_watchdog), s->watchdog_usec, USEC_PER_SEC)); | |
883 | ||
4819ff03 | 884 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
885 | exec_context_dump(&s->exec_context, f, prefix); |
886 | ||
e537352b | 887 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 888 | |
44d8db9e LP |
889 | if (!s->exec_command[c]) |
890 | continue; | |
891 | ||
40d50879 | 892 | fprintf(f, "%s-> %s:\n", |
94f04347 | 893 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
894 | |
895 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 896 | } |
44d8db9e | 897 | |
8c47c732 LP |
898 | if (s->status_text) |
899 | fprintf(f, "%sStatus Text: %s\n", | |
900 | prefix, s->status_text); | |
a354329f | 901 | |
ece174c5 | 902 | if (s->n_fd_store_max > 0) |
a354329f LP |
903 | fprintf(f, |
904 | "%sFile Descriptor Store Max: %u\n" | |
da6053d0 | 905 | "%sFile Descriptor Store Current: %zu\n", |
a354329f LP |
906 | prefix, s->n_fd_store_max, |
907 | prefix, s->n_fd_store); | |
18f573aa | 908 | |
bc0623df | 909 | cgroup_context_dump(UNIT(s), f, prefix); |
5cb5a6ff LP |
910 | } |
911 | ||
db256aab LP |
912 | static int service_is_suitable_main_pid(Service *s, pid_t pid, int prio) { |
913 | Unit *owner; | |
914 | ||
915 | assert(s); | |
916 | assert(pid_is_valid(pid)); | |
917 | ||
918 | /* Checks whether the specified PID is suitable as main PID for this service. returns negative if not, 0 if the | |
919 | * PID is questionnable but should be accepted if the source of configuration is trusted. > 0 if the PID is | |
920 | * good */ | |
921 | ||
922 | if (pid == getpid_cached() || pid == 1) { | |
923 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" is the manager, refusing.", pid); | |
924 | return -EPERM; | |
925 | } | |
926 | ||
927 | if (pid == s->control_pid) { | |
928 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" is the control process, refusing.", pid); | |
929 | return -EPERM; | |
930 | } | |
931 | ||
932 | if (!pid_is_alive(pid)) { | |
933 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" does not exist or is a zombie.", pid); | |
934 | return -ESRCH; | |
935 | } | |
936 | ||
937 | owner = manager_get_unit_by_pid(UNIT(s)->manager, pid); | |
938 | if (owner == UNIT(s)) { | |
939 | log_unit_debug(UNIT(s), "New main PID "PID_FMT" belongs to service, we are happy.", pid); | |
940 | return 1; /* Yay, it's definitely a good PID */ | |
941 | } | |
942 | ||
943 | return 0; /* Hmm it's a suspicious PID, let's accept it if configuration source is trusted */ | |
944 | } | |
945 | ||
c5419d42 | 946 | static int service_load_pid_file(Service *s, bool may_warn) { |
db256aab | 947 | char procfs[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
73969ab6 | 948 | bool questionable_pid_file = false; |
7fd1b19b | 949 | _cleanup_free_ char *k = NULL; |
db256aab LP |
950 | _cleanup_close_ int fd = -1; |
951 | int r, prio; | |
5925dd3c | 952 | pid_t pid; |
034c6ed7 LP |
953 | |
954 | assert(s); | |
955 | ||
034c6ed7 | 956 | if (!s->pid_file) |
13230d5d | 957 | return -ENOENT; |
034c6ed7 | 958 | |
db256aab LP |
959 | prio = may_warn ? LOG_INFO : LOG_DEBUG; |
960 | ||
961 | fd = chase_symlinks(s->pid_file, NULL, CHASE_OPEN|CHASE_SAFE, NULL); | |
36c97dec FB |
962 | if (fd == -ENOLINK) { |
963 | log_unit_full(UNIT(s), LOG_DEBUG, fd, "Potentially unsafe symlink chain, will now retry with relaxed checks: %s", s->pid_file); | |
73969ab6 LP |
964 | |
965 | questionable_pid_file = true; | |
966 | ||
967 | fd = chase_symlinks(s->pid_file, NULL, CHASE_OPEN, NULL); | |
968 | } | |
db256aab LP |
969 | if (fd < 0) |
970 | return log_unit_full(UNIT(s), prio, fd, "Can't open PID file %s (yet?) after %s: %m", s->pid_file, service_state_to_string(s->state)); | |
971 | ||
972 | /* Let's read the PID file now that we chased it down. But we need to convert the O_PATH fd chase_symlinks() returned us into a proper fd first. */ | |
973 | xsprintf(procfs, "/proc/self/fd/%i", fd); | |
974 | r = read_one_line_file(procfs, &k); | |
975 | if (r < 0) | |
976 | return log_unit_error_errno(UNIT(s), r, "Can't convert PID files %s O_PATH file descriptor to proper file descriptor: %m", s->pid_file); | |
034c6ed7 | 977 | |
5925dd3c | 978 | r = parse_pid(k, &pid); |
db256aab LP |
979 | if (r < 0) |
980 | return log_unit_full(UNIT(s), prio, r, "Failed to parse PID from file %s: %m", s->pid_file); | |
981 | ||
982 | if (s->main_pid_known && pid == s->main_pid) | |
983 | return 0; | |
984 | ||
985 | r = service_is_suitable_main_pid(s, pid, prio); | |
986 | if (r < 0) | |
5925dd3c | 987 | return r; |
db256aab LP |
988 | if (r == 0) { |
989 | struct stat st; | |
406eaf93 | 990 | |
73969ab6 LP |
991 | if (questionable_pid_file) { |
992 | log_unit_error(UNIT(s), "Refusing to accept PID outside of service control group, acquired through unsafe symlink chain: %s", s->pid_file); | |
993 | return -EPERM; | |
994 | } | |
995 | ||
db256aab LP |
996 | /* Hmm, it's not clear if the new main PID is safe. Let's allow this if the PID file is owned by root */ |
997 | ||
998 | if (fstat(fd, &st) < 0) | |
999 | return log_unit_error_errno(UNIT(s), errno, "Failed to fstat() PID file O_PATH fd: %m"); | |
1000 | ||
1001 | if (st.st_uid != 0) { | |
1002 | 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); | |
1003 | return -EPERM; | |
1004 | } | |
1005 | ||
1006 | 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 |
1007 | } |
1008 | ||
db01f8b3 | 1009 | if (s->main_pid_known) { |
f2341e0a | 1010 | log_unit_debug(UNIT(s), "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
8bb2d17d | 1011 | |
db01f8b3 MS |
1012 | service_unwatch_main_pid(s); |
1013 | s->main_pid_known = false; | |
3a111838 | 1014 | } else |
f2341e0a | 1015 | log_unit_debug(UNIT(s), "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 1016 | |
117dcc57 ZJS |
1017 | r = service_set_main_pid(s, pid); |
1018 | if (r < 0) | |
16f6025e LP |
1019 | return r; |
1020 | ||
f75f613d | 1021 | r = unit_watch_pid(UNIT(s), pid, false); |
e8b509d3 LP |
1022 | if (r < 0) /* FIXME: we need to do something here */ |
1023 | return log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", pid); | |
034c6ed7 | 1024 | |
db256aab | 1025 | return 1; |
034c6ed7 LP |
1026 | } |
1027 | ||
783e05d6 | 1028 | static void service_search_main_pid(Service *s) { |
efdb0237 | 1029 | pid_t pid = 0; |
4fbf50b3 LP |
1030 | int r; |
1031 | ||
1032 | assert(s); | |
1033 | ||
3185a36b LP |
1034 | /* If we know it anyway, don't ever fallback to unreliable |
1035 | * heuristics */ | |
4fbf50b3 | 1036 | if (s->main_pid_known) |
783e05d6 | 1037 | return; |
4fbf50b3 | 1038 | |
3185a36b | 1039 | if (!s->guess_main_pid) |
783e05d6 | 1040 | return; |
3185a36b | 1041 | |
4fbf50b3 LP |
1042 | assert(s->main_pid <= 0); |
1043 | ||
783e05d6 ZJS |
1044 | if (unit_search_main_pid(UNIT(s), &pid) < 0) |
1045 | return; | |
4fbf50b3 | 1046 | |
f2341e0a | 1047 | log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid); |
783e05d6 ZJS |
1048 | if (service_set_main_pid(s, pid) < 0) |
1049 | return; | |
4fbf50b3 | 1050 | |
f75f613d | 1051 | r = unit_watch_pid(UNIT(s), pid, false); |
783e05d6 | 1052 | if (r < 0) |
4fbf50b3 | 1053 | /* FIXME: we need to do something here */ |
f2341e0a | 1054 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", pid); |
4fbf50b3 LP |
1055 | } |
1056 | ||
034c6ed7 LP |
1057 | static void service_set_state(Service *s, ServiceState state) { |
1058 | ServiceState old_state; | |
e056b01d | 1059 | const UnitActiveState *table; |
842129f5 | 1060 | |
5cb5a6ff LP |
1061 | assert(s); |
1062 | ||
6fcbec6f LP |
1063 | if (s->state != state) |
1064 | bus_unit_send_pending_change_signal(UNIT(s), false); | |
1065 | ||
e056b01d LP |
1066 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
1067 | ||
034c6ed7 | 1068 | old_state = s->state; |
5cb5a6ff | 1069 | s->state = state; |
034c6ed7 | 1070 | |
3a111838 MS |
1071 | service_unwatch_pid_file(s); |
1072 | ||
842129f5 | 1073 | if (!IN_SET(state, |
31cd5f63 | 1074 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
36c16a7c | 1075 | SERVICE_RUNNING, |
842129f5 | 1076 | SERVICE_RELOAD, |
c87700a1 | 1077 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 | 1078 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
4c2f5842 LP |
1079 | SERVICE_AUTO_RESTART, |
1080 | SERVICE_CLEANING)) | |
718db961 | 1081 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 1082 | |
842129f5 LP |
1083 | if (!IN_SET(state, |
1084 | SERVICE_START, SERVICE_START_POST, | |
1085 | SERVICE_RUNNING, SERVICE_RELOAD, | |
c87700a1 | 1086 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf108e55 | 1087 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 1088 | service_unwatch_main_pid(s); |
867b3b7d LP |
1089 | s->main_command = NULL; |
1090 | } | |
034c6ed7 | 1091 | |
842129f5 | 1092 | if (!IN_SET(state, |
31cd5f63 | 1093 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
842129f5 | 1094 | SERVICE_RELOAD, |
c87700a1 | 1095 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 LP |
1096 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
1097 | SERVICE_CLEANING)) { | |
5e94833f | 1098 | service_unwatch_control_pid(s); |
034c6ed7 | 1099 | s->control_command = NULL; |
a16e1123 | 1100 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 1101 | } |
034c6ed7 | 1102 | |
50be4f4a | 1103 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) { |
a911bb9a | 1104 | unit_unwatch_all_pids(UNIT(s)); |
50be4f4a LP |
1105 | unit_dequeue_rewatch_pids(UNIT(s)); |
1106 | } | |
a911bb9a | 1107 | |
842129f5 | 1108 | if (!IN_SET(state, |
31cd5f63 | 1109 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
842129f5 | 1110 | SERVICE_RUNNING, SERVICE_RELOAD, |
c87700a1 | 1111 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
57614eb1 | 1112 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && |
5cc3985e | 1113 | !(state == SERVICE_DEAD && UNIT(s)->job)) |
4f2d528d LP |
1114 | service_close_socket_fd(s); |
1115 | ||
5686391b LP |
1116 | if (state != SERVICE_START) |
1117 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
1118 | ||
7596e9e1 | 1119 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
1120 | service_stop_watchdog(s); |
1121 | ||
f6023656 LP |
1122 | /* For the inactive states unit_notify() will trim the cgroup, |
1123 | * but for exit we have to do that ourselves... */ | |
2c289ea8 | 1124 | if (state == SERVICE_EXITED && !MANAGER_IS_RELOADING(UNIT(s)->manager)) |
efdb0237 | 1125 | unit_prune_cgroup(UNIT(s)); |
f6023656 | 1126 | |
e537352b | 1127 | if (old_state != state) |
f2341e0a | 1128 | log_unit_debug(UNIT(s), "Changed %s -> %s", service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 1129 | |
2ad2e41a LP |
1130 | unit_notify(UNIT(s), table[old_state], table[state], |
1131 | (s->reload_result == SERVICE_SUCCESS ? 0 : UNIT_NOTIFY_RELOAD_FAILURE) | | |
31cd5f63 AZ |
1132 | (s->will_auto_restart ? UNIT_NOTIFY_WILL_AUTO_RESTART : 0) | |
1133 | (s->result == SERVICE_SKIP_CONDITION ? UNIT_NOTIFY_SKIP_CONDITION : 0)); | |
034c6ed7 LP |
1134 | } |
1135 | ||
36c16a7c LP |
1136 | static usec_t service_coldplug_timeout(Service *s) { |
1137 | assert(s); | |
1138 | ||
1139 | switch (s->deserialized_state) { | |
1140 | ||
31cd5f63 | 1141 | case SERVICE_CONDITION: |
36c16a7c LP |
1142 | case SERVICE_START_PRE: |
1143 | case SERVICE_START: | |
1144 | case SERVICE_START_POST: | |
1145 | case SERVICE_RELOAD: | |
1146 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_start_usec); | |
1147 | ||
1148 | case SERVICE_RUNNING: | |
1149 | return usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec); | |
1150 | ||
1151 | case SERVICE_STOP: | |
36c16a7c LP |
1152 | case SERVICE_STOP_SIGTERM: |
1153 | case SERVICE_STOP_SIGKILL: | |
1154 | case SERVICE_STOP_POST: | |
1155 | case SERVICE_FINAL_SIGTERM: | |
1156 | case SERVICE_FINAL_SIGKILL: | |
1157 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_stop_usec); | |
1158 | ||
dc653bf4 JK |
1159 | case SERVICE_STOP_WATCHDOG: |
1160 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, service_timeout_abort_usec(s)); | |
1161 | ||
36c16a7c LP |
1162 | case SERVICE_AUTO_RESTART: |
1163 | return usec_add(UNIT(s)->inactive_enter_timestamp.monotonic, s->restart_usec); | |
1164 | ||
4c2f5842 | 1165 | case SERVICE_CLEANING: |
12213aed | 1166 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->exec_context.timeout_clean_usec); |
4c2f5842 | 1167 | |
36c16a7c LP |
1168 | default: |
1169 | return USEC_INFINITY; | |
1170 | } | |
1171 | } | |
1172 | ||
be847e82 | 1173 | static int service_coldplug(Unit *u) { |
a16e1123 LP |
1174 | Service *s = SERVICE(u); |
1175 | int r; | |
1176 | ||
1177 | assert(s); | |
1178 | assert(s->state == SERVICE_DEAD); | |
1179 | ||
930d2838 LP |
1180 | if (s->deserialized_state == s->state) |
1181 | return 0; | |
6c12b52e | 1182 | |
36c16a7c LP |
1183 | r = service_arm_timer(s, service_coldplug_timeout(s)); |
1184 | if (r < 0) | |
1185 | return r; | |
a911bb9a | 1186 | |
930d2838 LP |
1187 | if (s->main_pid > 0 && |
1188 | pid_is_unwaited(s->main_pid) && | |
9acac212 | 1189 | (IN_SET(s->deserialized_state, |
930d2838 LP |
1190 | SERVICE_START, SERVICE_START_POST, |
1191 | SERVICE_RUNNING, SERVICE_RELOAD, | |
c87700a1 | 1192 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
930d2838 | 1193 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { |
f75f613d | 1194 | r = unit_watch_pid(UNIT(s), s->main_pid, false); |
930d2838 LP |
1195 | if (r < 0) |
1196 | return r; | |
1197 | } | |
bb242b7b | 1198 | |
930d2838 LP |
1199 | if (s->control_pid > 0 && |
1200 | pid_is_unwaited(s->control_pid) && | |
1201 | IN_SET(s->deserialized_state, | |
31cd5f63 | 1202 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
930d2838 | 1203 | SERVICE_RELOAD, |
c87700a1 | 1204 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 LP |
1205 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
1206 | SERVICE_CLEANING)) { | |
f75f613d | 1207 | r = unit_watch_pid(UNIT(s), s->control_pid, false); |
930d2838 LP |
1208 | if (r < 0) |
1209 | return r; | |
a16e1123 | 1210 | } |
92c1622e | 1211 | |
4c2f5842 | 1212 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART, SERVICE_CLEANING)) { |
50be4f4a | 1213 | (void) unit_enqueue_rewatch_pids(u); |
29206d46 | 1214 | (void) unit_setup_dynamic_creds(u); |
e8a565cb YW |
1215 | (void) unit_setup_exec_runtime(u); |
1216 | } | |
29206d46 | 1217 | |
50be4f4a LP |
1218 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
1219 | service_start_watchdog(s); | |
1220 | ||
3ebcd323 ZJS |
1221 | if (UNIT_ISSET(s->accept_socket)) { |
1222 | Socket* socket = SOCKET(UNIT_DEREF(s->accept_socket)); | |
1223 | ||
1224 | if (socket->max_connections_per_source > 0) { | |
1225 | SocketPeer *peer; | |
1226 | ||
1227 | /* Make a best-effort attempt at bumping the connection count */ | |
1228 | if (socket_acquire_peer(socket, s->socket_fd, &peer) > 0) { | |
1229 | socket_peer_unref(s->peer); | |
1230 | s->peer = peer; | |
1231 | } | |
1232 | } | |
1233 | } | |
1234 | ||
930d2838 | 1235 | service_set_state(s, s->deserialized_state); |
a16e1123 LP |
1236 | return 0; |
1237 | } | |
1238 | ||
25b583d7 LP |
1239 | static int service_collect_fds( |
1240 | Service *s, | |
1241 | int **fds, | |
1242 | char ***fd_names, | |
1243 | size_t *n_socket_fds, | |
1244 | size_t *n_storage_fds) { | |
4c47affc | 1245 | |
8dd4c05b | 1246 | _cleanup_strv_free_ char **rfd_names = NULL; |
a354329f | 1247 | _cleanup_free_ int *rfds = NULL; |
25b583d7 | 1248 | size_t rn_socket_fds = 0, rn_storage_fds = 0; |
4c47affc | 1249 | int r; |
44d8db9e LP |
1250 | |
1251 | assert(s); | |
1252 | assert(fds); | |
8dd4c05b | 1253 | assert(fd_names); |
9b141911 | 1254 | assert(n_socket_fds); |
25b583d7 | 1255 | assert(n_storage_fds); |
44d8db9e | 1256 | |
8dd4c05b | 1257 | if (s->socket_fd >= 0) { |
6cf6bbc2 | 1258 | |
8dd4c05b | 1259 | /* Pass the per-connection socket */ |
57020a3a | 1260 | |
8dd4c05b LP |
1261 | rfds = new(int, 1); |
1262 | if (!rfds) | |
1263 | return -ENOMEM; | |
1264 | rfds[0] = s->socket_fd; | |
57020a3a | 1265 | |
bea1a013 | 1266 | rfd_names = strv_new("connection"); |
8dd4c05b LP |
1267 | if (!rfd_names) |
1268 | return -ENOMEM; | |
44d8db9e | 1269 | |
4c47affc | 1270 | rn_socket_fds = 1; |
8dd4c05b LP |
1271 | } else { |
1272 | Iterator i; | |
eef85c4a | 1273 | void *v; |
8dd4c05b | 1274 | Unit *u; |
44d8db9e | 1275 | |
8dd4c05b | 1276 | /* Pass all our configured sockets for singleton services */ |
44d8db9e | 1277 | |
eef85c4a | 1278 | HASHMAP_FOREACH_KEY(v, u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
8dd4c05b LP |
1279 | _cleanup_free_ int *cfds = NULL; |
1280 | Socket *sock; | |
1281 | int cn_fds; | |
44d8db9e | 1282 | |
8dd4c05b LP |
1283 | if (u->type != UNIT_SOCKET) |
1284 | continue; | |
44d8db9e | 1285 | |
8dd4c05b | 1286 | sock = SOCKET(u); |
a354329f | 1287 | |
8dd4c05b LP |
1288 | cn_fds = socket_collect_fds(sock, &cfds); |
1289 | if (cn_fds < 0) | |
1290 | return cn_fds; | |
44d8db9e | 1291 | |
8dd4c05b LP |
1292 | if (cn_fds <= 0) |
1293 | continue; | |
79c7626d | 1294 | |
8dd4c05b | 1295 | if (!rfds) { |
1cc6c93a | 1296 | rfds = TAKE_PTR(cfds); |
4c47affc | 1297 | rn_socket_fds = cn_fds; |
8dd4c05b LP |
1298 | } else { |
1299 | int *t; | |
1300 | ||
62d74c78 | 1301 | t = reallocarray(rfds, rn_socket_fds + cn_fds, sizeof(int)); |
8dd4c05b LP |
1302 | if (!t) |
1303 | return -ENOMEM; | |
1304 | ||
4c47affc | 1305 | memcpy(t + rn_socket_fds, cfds, cn_fds * sizeof(int)); |
8dd4c05b LP |
1306 | |
1307 | rfds = t; | |
4c47affc | 1308 | rn_socket_fds += cn_fds; |
8dd4c05b LP |
1309 | } |
1310 | ||
1311 | r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds); | |
1312 | if (r < 0) | |
1313 | return r; | |
44d8db9e LP |
1314 | } |
1315 | } | |
1316 | ||
a354329f LP |
1317 | if (s->n_fd_store > 0) { |
1318 | ServiceFDStore *fs; | |
25b583d7 | 1319 | size_t n_fds; |
8dd4c05b | 1320 | char **nl; |
a354329f LP |
1321 | int *t; |
1322 | ||
62d74c78 | 1323 | t = reallocarray(rfds, rn_socket_fds + s->n_fd_store, sizeof(int)); |
a354329f LP |
1324 | if (!t) |
1325 | return -ENOMEM; | |
1326 | ||
1327 | rfds = t; | |
8dd4c05b | 1328 | |
62d74c78 | 1329 | nl = reallocarray(rfd_names, rn_socket_fds + s->n_fd_store + 1, sizeof(char *)); |
8dd4c05b LP |
1330 | if (!nl) |
1331 | return -ENOMEM; | |
1332 | ||
1333 | rfd_names = nl; | |
4c47affc | 1334 | n_fds = rn_socket_fds; |
8dd4c05b LP |
1335 | |
1336 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
4c47affc FB |
1337 | rfds[n_fds] = fs->fd; |
1338 | rfd_names[n_fds] = strdup(strempty(fs->fdname)); | |
1339 | if (!rfd_names[n_fds]) | |
8dd4c05b LP |
1340 | return -ENOMEM; |
1341 | ||
4c47affc FB |
1342 | rn_storage_fds++; |
1343 | n_fds++; | |
8dd4c05b LP |
1344 | } |
1345 | ||
4c47affc | 1346 | rfd_names[n_fds] = NULL; |
a354329f LP |
1347 | } |
1348 | ||
1cc6c93a YW |
1349 | *fds = TAKE_PTR(rfds); |
1350 | *fd_names = TAKE_PTR(rfd_names); | |
9b141911 | 1351 | *n_socket_fds = rn_socket_fds; |
4c47affc | 1352 | *n_storage_fds = rn_storage_fds; |
3e33402a | 1353 | |
4c47affc | 1354 | return 0; |
44d8db9e LP |
1355 | } |
1356 | ||
5686391b LP |
1357 | static int service_allocate_exec_fd_event_source( |
1358 | Service *s, | |
1359 | int fd, | |
1360 | sd_event_source **ret_event_source) { | |
1361 | ||
1362 | _cleanup_(sd_event_source_unrefp) sd_event_source *source = NULL; | |
1363 | int r; | |
1364 | ||
1365 | assert(s); | |
1366 | assert(fd >= 0); | |
1367 | assert(ret_event_source); | |
1368 | ||
1369 | r = sd_event_add_io(UNIT(s)->manager->event, &source, fd, 0, service_dispatch_exec_io, s); | |
1370 | if (r < 0) | |
1371 | return log_unit_error_errno(UNIT(s), r, "Failed to allocate exec_fd event source: %m"); | |
1372 | ||
1373 | /* This is a bit lower priority than SIGCHLD, as that carries a lot more interesting failure information */ | |
1374 | ||
1375 | r = sd_event_source_set_priority(source, SD_EVENT_PRIORITY_NORMAL-3); | |
1376 | if (r < 0) | |
1377 | return log_unit_error_errno(UNIT(s), r, "Failed to adjust priority of exec_fd event source: %m"); | |
1378 | ||
1379 | (void) sd_event_source_set_description(source, "service event_fd"); | |
1380 | ||
1381 | r = sd_event_source_set_io_fd_own(source, true); | |
1382 | if (r < 0) | |
1383 | return log_unit_error_errno(UNIT(s), r, "Failed to pass ownership of fd to event source: %m"); | |
1384 | ||
1385 | *ret_event_source = TAKE_PTR(source); | |
1386 | return 0; | |
1387 | } | |
1388 | ||
1389 | static int service_allocate_exec_fd( | |
1390 | Service *s, | |
1391 | sd_event_source **ret_event_source, | |
1392 | int* ret_exec_fd) { | |
1393 | ||
1394 | _cleanup_close_pair_ int p[2] = { -1, -1 }; | |
1395 | int r; | |
1396 | ||
1397 | assert(s); | |
1398 | assert(ret_event_source); | |
1399 | assert(ret_exec_fd); | |
1400 | ||
1401 | if (pipe2(p, O_CLOEXEC|O_NONBLOCK) < 0) | |
1402 | return log_unit_error_errno(UNIT(s), errno, "Failed to allocate exec_fd pipe: %m"); | |
1403 | ||
1404 | r = service_allocate_exec_fd_event_source(s, p[0], ret_event_source); | |
1405 | if (r < 0) | |
1406 | return r; | |
1407 | ||
1408 | p[0] = -1; | |
1409 | *ret_exec_fd = TAKE_FD(p[1]); | |
1410 | ||
1411 | return 0; | |
1412 | } | |
1413 | ||
6375bd20 JW |
1414 | static bool service_exec_needs_notify_socket(Service *s, ExecFlags flags) { |
1415 | assert(s); | |
1416 | ||
1417 | /* Notifications are accepted depending on the process and | |
1418 | * the access setting of the service: | |
1419 | * process: \ access: NONE MAIN EXEC ALL | |
1420 | * main no yes yes yes | |
1421 | * control no no yes yes | |
1422 | * other (forked) no no no yes */ | |
1423 | ||
1424 | if (flags & EXEC_IS_CONTROL) | |
1425 | /* A control process */ | |
1426 | return IN_SET(s->notify_access, NOTIFY_EXEC, NOTIFY_ALL); | |
1427 | ||
1428 | /* We only spawn main processes and control processes, so any | |
1429 | * process that is not a control process is a main process */ | |
1430 | return s->notify_access != NOTIFY_NONE; | |
1431 | } | |
1432 | ||
81a2b7ce LP |
1433 | static int service_spawn( |
1434 | Service *s, | |
1435 | ExecCommand *c, | |
21b2ce39 | 1436 | usec_t timeout, |
c39f1ce2 | 1437 | ExecFlags flags, |
81a2b7ce LP |
1438 | pid_t *_pid) { |
1439 | ||
b9c04eaf | 1440 | _cleanup_(exec_params_clear) ExecParameters exec_params = { |
c39f1ce2 LP |
1441 | .flags = flags, |
1442 | .stdin_fd = -1, | |
1443 | .stdout_fd = -1, | |
1444 | .stderr_fd = -1, | |
25b583d7 | 1445 | .exec_fd = -1, |
9fa95f85 | 1446 | }; |
3c7416b6 | 1447 | _cleanup_strv_free_ char **final_env = NULL, **our_env = NULL, **fd_names = NULL; |
5686391b | 1448 | _cleanup_(sd_event_source_unrefp) sd_event_source *exec_fd_source = NULL; |
25b583d7 | 1449 | size_t n_socket_fds = 0, n_storage_fds = 0, n_env = 0; |
5686391b | 1450 | _cleanup_close_ int exec_fd = -1; |
3c7416b6 LP |
1451 | _cleanup_free_ int *fds = NULL; |
1452 | pid_t pid; | |
8dd4c05b LP |
1453 | int r; |
1454 | ||
034c6ed7 LP |
1455 | assert(s); |
1456 | assert(c); | |
1457 | assert(_pid); | |
1458 | ||
78f93209 | 1459 | r = unit_prepare_exec(UNIT(s)); /* This realizes the cgroup, among other things */ |
3c7416b6 LP |
1460 | if (r < 0) |
1461 | return r; | |
1462 | ||
9c1a61ad LP |
1463 | if (flags & EXEC_IS_CONTROL) { |
1464 | /* If this is a control process, mask the permissions/chroot application if this is requested. */ | |
1465 | if (s->permissions_start_only) | |
1703fa41 | 1466 | exec_params.flags &= ~EXEC_APPLY_SANDBOXING; |
9c1a61ad LP |
1467 | if (s->root_directory_start_only) |
1468 | exec_params.flags &= ~EXEC_APPLY_CHROOT; | |
1469 | } | |
1470 | ||
c39f1ce2 | 1471 | if ((flags & EXEC_PASS_FDS) || |
6cf6bbc2 LP |
1472 | s->exec_context.std_input == EXEC_INPUT_SOCKET || |
1473 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1474 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1475 | ||
25b583d7 | 1476 | r = service_collect_fds(s, &fds, &fd_names, &n_socket_fds, &n_storage_fds); |
8dd4c05b | 1477 | if (r < 0) |
36c16a7c | 1478 | return r; |
6cf6bbc2 | 1479 | |
25b583d7 | 1480 | log_unit_debug(UNIT(s), "Passing %zu fds to service", n_socket_fds + n_storage_fds); |
4f2d528d | 1481 | } |
44d8db9e | 1482 | |
5686391b LP |
1483 | if (!FLAGS_SET(flags, EXEC_IS_CONTROL) && s->type == SERVICE_EXEC) { |
1484 | assert(!s->exec_fd_event_source); | |
1485 | ||
1486 | r = service_allocate_exec_fd(s, &exec_fd_source, &exec_fd); | |
1487 | if (r < 0) | |
1488 | return r; | |
1489 | } | |
1490 | ||
36c16a7c LP |
1491 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), timeout)); |
1492 | if (r < 0) | |
1493 | return r; | |
034c6ed7 | 1494 | |
dcf3c3c3 | 1495 | our_env = new0(char*, 10); |
36c16a7c LP |
1496 | if (!our_env) |
1497 | return -ENOMEM; | |
c952c6ec | 1498 | |
6375bd20 | 1499 | if (service_exec_needs_notify_socket(s, flags)) |
36c16a7c LP |
1500 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) |
1501 | return -ENOMEM; | |
c952c6ec | 1502 | |
2105e76a | 1503 | if (s->main_pid > 0) |
36c16a7c LP |
1504 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) |
1505 | return -ENOMEM; | |
2105e76a | 1506 | |
c39f1ce2 | 1507 | if (MANAGER_IS_USER(UNIT(s)->manager)) |
df0ff127 | 1508 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid_cached()) < 0) |
36c16a7c | 1509 | return -ENOMEM; |
97ae63e2 | 1510 | |
dcf3c3c3 LP |
1511 | if (s->pid_file) |
1512 | if (asprintf(our_env + n_env++, "PIDFILE=%s", s->pid_file) < 0) | |
1513 | return -ENOMEM; | |
1514 | ||
8dd4c05b | 1515 | if (s->socket_fd >= 0) { |
3b1c5241 SL |
1516 | union sockaddr_union sa; |
1517 | socklen_t salen = sizeof(sa); | |
1518 | ||
f56e7bfe LP |
1519 | /* If this is a per-connection service instance, let's set $REMOTE_ADDR and $REMOTE_PORT to something |
1520 | * useful. Note that we do this only when we are still connected at this point in time, which we might | |
1521 | * very well not be. Hence we ignore all errors when retrieving peer information (as that might result | |
1522 | * in ENOTCONN), and just use whate we can use. */ | |
f2dbd059 | 1523 | |
f56e7bfe LP |
1524 | if (getpeername(s->socket_fd, &sa.sa, &salen) >= 0 && |
1525 | IN_SET(sa.sa.sa_family, AF_INET, AF_INET6, AF_VSOCK)) { | |
3b1c5241 | 1526 | |
3b1c5241 SL |
1527 | _cleanup_free_ char *addr = NULL; |
1528 | char *t; | |
882ac6e7 | 1529 | unsigned port; |
3b1c5241 SL |
1530 | |
1531 | r = sockaddr_pretty(&sa.sa, salen, true, false, &addr); | |
1532 | if (r < 0) | |
36c16a7c | 1533 | return r; |
3b1c5241 | 1534 | |
b910cc72 | 1535 | t = strjoin("REMOTE_ADDR=", addr); |
36c16a7c LP |
1536 | if (!t) |
1537 | return -ENOMEM; | |
3b1c5241 SL |
1538 | our_env[n_env++] = t; |
1539 | ||
882ac6e7 SH |
1540 | r = sockaddr_port(&sa.sa, &port); |
1541 | if (r < 0) | |
1542 | return r; | |
3b1c5241 | 1543 | |
36c16a7c LP |
1544 | if (asprintf(&t, "REMOTE_PORT=%u", port) < 0) |
1545 | return -ENOMEM; | |
3b1c5241 SL |
1546 | our_env[n_env++] = t; |
1547 | } | |
1548 | } | |
1549 | ||
136dc4c4 LP |
1550 | if (flags & EXEC_SETENV_RESULT) { |
1551 | if (asprintf(our_env + n_env++, "SERVICE_RESULT=%s", service_result_to_string(s->result)) < 0) | |
1552 | return -ENOMEM; | |
1553 | ||
1554 | if (s->main_exec_status.pid > 0 && | |
1555 | dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { | |
1556 | if (asprintf(our_env + n_env++, "EXIT_CODE=%s", sigchld_code_to_string(s->main_exec_status.code)) < 0) | |
1557 | return -ENOMEM; | |
1558 | ||
1559 | if (s->main_exec_status.code == CLD_EXITED) | |
1560 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%i", s->main_exec_status.status); | |
1561 | else | |
1562 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%s", signal_to_string(s->main_exec_status.status)); | |
1563 | if (r < 0) | |
1564 | return -ENOMEM; | |
1565 | } | |
1566 | } | |
1567 | ||
1ad6e8b3 LP |
1568 | r = unit_set_exec_params(UNIT(s), &exec_params); |
1569 | if (r < 0) | |
1570 | return r; | |
3536f49e YW |
1571 | |
1572 | final_env = strv_env_merge(2, exec_params.environment, our_env, NULL); | |
36c16a7c LP |
1573 | if (!final_env) |
1574 | return -ENOMEM; | |
c952c6ec | 1575 | |
ac647978 LP |
1576 | /* System D-Bus needs nss-systemd disabled, so that we don't deadlock */ |
1577 | SET_FLAG(exec_params.flags, EXEC_NSS_BYPASS_BUS, | |
1578 | MANAGER_IS_SYSTEM(UNIT(s)->manager) && unit_has_name(UNIT(s), SPECIAL_DBUS_SERVICE)); | |
4ad49000 | 1579 | |
b9c04eaf | 1580 | strv_free_and_replace(exec_params.environment, final_env); |
9fa95f85 | 1581 | exec_params.fds = fds; |
8dd4c05b | 1582 | exec_params.fd_names = fd_names; |
9b141911 | 1583 | exec_params.n_socket_fds = n_socket_fds; |
25b583d7 | 1584 | exec_params.n_storage_fds = n_storage_fds; |
34b3f625 | 1585 | exec_params.watchdog_usec = service_get_watchdog_usec(s); |
a34ceba6 | 1586 | exec_params.selinux_context_net = s->socket_fd_selinux_context_net; |
9fa95f85 DM |
1587 | if (s->type == SERVICE_IDLE) |
1588 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
a34ceba6 LP |
1589 | exec_params.stdin_fd = s->stdin_fd; |
1590 | exec_params.stdout_fd = s->stdout_fd; | |
1591 | exec_params.stderr_fd = s->stderr_fd; | |
5686391b | 1592 | exec_params.exec_fd = exec_fd; |
9fa95f85 | 1593 | |
f2341e0a LP |
1594 | r = exec_spawn(UNIT(s), |
1595 | c, | |
9e2f7c11 | 1596 | &s->exec_context, |
9fa95f85 | 1597 | &exec_params, |
613b411c | 1598 | s->exec_runtime, |
29206d46 | 1599 | &s->dynamic_creds, |
9e2f7c11 | 1600 | &pid); |
9e2f7c11 | 1601 | if (r < 0) |
36c16a7c | 1602 | return r; |
034c6ed7 | 1603 | |
5686391b LP |
1604 | s->exec_fd_event_source = TAKE_PTR(exec_fd_source); |
1605 | s->exec_fd_hot = false; | |
1606 | ||
f75f613d FB |
1607 | r = unit_watch_pid(UNIT(s), pid, true); |
1608 | if (r < 0) | |
36c16a7c | 1609 | return r; |
034c6ed7 LP |
1610 | |
1611 | *_pid = pid; | |
1612 | ||
5cb5a6ff | 1613 | return 0; |
034c6ed7 LP |
1614 | } |
1615 | ||
80876c20 LP |
1616 | static int main_pid_good(Service *s) { |
1617 | assert(s); | |
1618 | ||
51894d70 | 1619 | /* Returns 0 if the pid is dead, > 0 if it is good, < 0 if we don't know */ |
80876c20 | 1620 | |
fc08079e | 1621 | /* If we know the pid file, then let's just check if it is |
80876c20 | 1622 | * still valid */ |
6dfa5494 LP |
1623 | if (s->main_pid_known) { |
1624 | ||
1625 | /* If it's an alien child let's check if it is still | |
1626 | * alive ... */ | |
62220cf7 | 1627 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1628 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1629 | |
1630 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1631 | * which we really should wait for to collect exit | |
1632 | * status and code */ | |
80876c20 | 1633 | return s->main_pid > 0; |
6dfa5494 | 1634 | } |
80876c20 LP |
1635 | |
1636 | /* We don't know the pid */ | |
1637 | return -EAGAIN; | |
1638 | } | |
1639 | ||
019be286 | 1640 | static int control_pid_good(Service *s) { |
80876c20 LP |
1641 | assert(s); |
1642 | ||
07697d7e LP |
1643 | /* Returns 0 if the control PID is dead, > 0 if it is good. We never actually return < 0 here, but in order to |
1644 | * make this function as similar as possible to main_pid_good() and cgroup_good(), we pretend that < 0 also | |
1645 | * means: we can't figure it out. */ | |
1646 | ||
80876c20 LP |
1647 | return s->control_pid > 0; |
1648 | } | |
1649 | ||
1650 | static int cgroup_good(Service *s) { | |
1651 | int r; | |
1652 | ||
1653 | assert(s); | |
1654 | ||
07697d7e LP |
1655 | /* Returns 0 if the cgroup is empty or doesn't exist, > 0 if it is exists and is populated, < 0 if we can't |
1656 | * figure it out */ | |
1657 | ||
4ad49000 LP |
1658 | if (!UNIT(s)->cgroup_path) |
1659 | return 0; | |
1660 | ||
6f883237 | 1661 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path); |
117dcc57 | 1662 | if (r < 0) |
80876c20 LP |
1663 | return r; |
1664 | ||
b13ddbbc | 1665 | return r == 0; |
80876c20 LP |
1666 | } |
1667 | ||
a509f0e6 LP |
1668 | static bool service_shall_restart(Service *s) { |
1669 | assert(s); | |
1670 | ||
1671 | /* Don't restart after manual stops */ | |
1672 | if (s->forbid_restart) | |
1673 | return false; | |
1674 | ||
1675 | /* Never restart if this is configured as special exception */ | |
1676 | if (exit_status_set_test(&s->restart_prevent_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1677 | return false; | |
1678 | ||
1679 | /* Restart if the exit code/status are configured as restart triggers */ | |
1680 | if (exit_status_set_test(&s->restart_force_status, s->main_exec_status.code, s->main_exec_status.status)) | |
1681 | return true; | |
1682 | ||
1683 | switch (s->restart) { | |
1684 | ||
1685 | case SERVICE_RESTART_NO: | |
1686 | return false; | |
1687 | ||
1688 | case SERVICE_RESTART_ALWAYS: | |
1689 | return true; | |
1690 | ||
1691 | case SERVICE_RESTART_ON_SUCCESS: | |
1692 | return s->result == SERVICE_SUCCESS; | |
1693 | ||
1694 | case SERVICE_RESTART_ON_FAILURE: | |
1695 | return s->result != SERVICE_SUCCESS; | |
1696 | ||
1697 | case SERVICE_RESTART_ON_ABNORMAL: | |
1698 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE); | |
1699 | ||
1700 | case SERVICE_RESTART_ON_WATCHDOG: | |
1701 | return s->result == SERVICE_FAILURE_WATCHDOG; | |
1702 | ||
1703 | case SERVICE_RESTART_ON_ABORT: | |
1704 | return IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP); | |
1705 | ||
1706 | default: | |
1707 | assert_not_reached("unknown restart setting"); | |
1708 | } | |
1709 | } | |
1710 | ||
deb4e708 MK |
1711 | static bool service_will_restart(Unit *u) { |
1712 | Service *s = SERVICE(u); | |
1713 | ||
53f47dfc YW |
1714 | assert(s); |
1715 | ||
deb4e708 MK |
1716 | if (s->will_auto_restart) |
1717 | return true; | |
53f47dfc YW |
1718 | if (s->state == SERVICE_AUTO_RESTART) |
1719 | return true; | |
2ad2e41a | 1720 | |
52a12341 | 1721 | return unit_will_restart_default(u); |
53f47dfc YW |
1722 | } |
1723 | ||
f42806df | 1724 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
31cd5f63 | 1725 | ServiceState end_state; |
034c6ed7 | 1726 | int r; |
0f52f8e5 | 1727 | |
034c6ed7 LP |
1728 | assert(s); |
1729 | ||
0f52f8e5 LP |
1730 | /* If there's a stop job queued before we enter the DEAD state, we shouldn't act on Restart=, in order to not |
1731 | * undo what has already been enqueued. */ | |
1732 | if (unit_stop_pending(UNIT(s))) | |
1733 | allow_restart = false; | |
1734 | ||
a0fef983 | 1735 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1736 | s->result = f; |
034c6ed7 | 1737 | |
31cd5f63 AZ |
1738 | if (s->result == SERVICE_SUCCESS) { |
1739 | unit_log_success(UNIT(s)); | |
1740 | end_state = SERVICE_DEAD; | |
1741 | } else if (s->result == SERVICE_SKIP_CONDITION) { | |
1742 | unit_log_skip(UNIT(s), service_result_to_string(s->result)); | |
1743 | end_state = SERVICE_DEAD; | |
1744 | } else { | |
1745 | unit_log_failure(UNIT(s), service_result_to_string(s->result)); | |
1746 | end_state = SERVICE_FAILED; | |
1747 | } | |
ed77d407 | 1748 | |
deb4e708 MK |
1749 | if (allow_restart && service_shall_restart(s)) |
1750 | s->will_auto_restart = true; | |
1751 | ||
7eb2a8a1 LP |
1752 | /* Make sure service_release_resources() doesn't destroy our FD store, while we are changing through |
1753 | * SERVICE_FAILED/SERVICE_DEAD before entering into SERVICE_AUTO_RESTART. */ | |
1754 | s->n_keep_fd_store ++; | |
1755 | ||
31cd5f63 | 1756 | service_set_state(s, end_state); |
0c7f15b3 | 1757 | |
deb4e708 MK |
1758 | if (s->will_auto_restart) { |
1759 | s->will_auto_restart = false; | |
034c6ed7 | 1760 | |
36c16a7c | 1761 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
7eb2a8a1 LP |
1762 | if (r < 0) { |
1763 | s->n_keep_fd_store--; | |
034c6ed7 | 1764 | goto fail; |
7eb2a8a1 | 1765 | } |
034c6ed7 LP |
1766 | |
1767 | service_set_state(s, SERVICE_AUTO_RESTART); | |
7a0019d3 LP |
1768 | } else |
1769 | /* If we shan't restart, then flush out the restart counter. But don't do that immediately, so that the | |
1770 | * user can still introspect the counter. Do so on the next start. */ | |
1771 | s->flush_n_restarts = true; | |
034c6ed7 | 1772 | |
5238e957 | 1773 | /* 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 |
1774 | * queue, so that the fd store is possibly gc'ed again */ |
1775 | s->n_keep_fd_store--; | |
1776 | unit_add_to_gc_queue(UNIT(s)); | |
1777 | ||
f2341e0a | 1778 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1779 | s->forbid_restart = false; |
1780 | ||
e66cf1a3 | 1781 | /* We want fresh tmpdirs in case service is started again immediately */ |
e8a565cb | 1782 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, true); |
c17ec25e | 1783 | |
95939aed YW |
1784 | /* Also, remove the runtime directory */ |
1785 | unit_destroy_runtime_directory(UNIT(s), &s->exec_context); | |
e66cf1a3 | 1786 | |
00d9ef85 LP |
1787 | /* Get rid of the IPC bits of the user */ |
1788 | unit_unref_uid_gid(UNIT(s), true); | |
1789 | ||
29206d46 LP |
1790 | /* Release the user, and destroy it if we are the only remaining owner */ |
1791 | dynamic_creds_destroy(&s->dynamic_creds); | |
1792 | ||
9285c9ff LN |
1793 | /* Try to delete the pid file. At this point it will be |
1794 | * out-of-date, and some software might be confused by it, so | |
1795 | * let's remove it. */ | |
1796 | if (s->pid_file) | |
fabab190 | 1797 | (void) unlink(s->pid_file); |
9285c9ff | 1798 | |
6f765baf LP |
1799 | /* Reset TTY ownership if necessary */ |
1800 | exec_context_revert_tty(&s->exec_context); | |
1801 | ||
034c6ed7 LP |
1802 | return; |
1803 | ||
1804 | fail: | |
f2341e0a | 1805 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1806 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1807 | } |
1808 | ||
f42806df | 1809 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1810 | int r; |
1811 | assert(s); | |
1812 | ||
a0fef983 | 1813 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1814 | s->result = f; |
034c6ed7 | 1815 | |
5e94833f | 1816 | service_unwatch_control_pid(s); |
50be4f4a | 1817 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
5e94833f | 1818 | |
117dcc57 ZJS |
1819 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1820 | if (s->control_command) { | |
867b3b7d LP |
1821 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1822 | ||
ecedd90f LP |
1823 | r = service_spawn(s, |
1824 | s->control_command, | |
21b2ce39 | 1825 | s->timeout_stop_usec, |
78f93209 | 1826 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
1827 | &s->control_pid); |
1828 | if (r < 0) | |
034c6ed7 LP |
1829 | goto fail; |
1830 | ||
80876c20 LP |
1831 | service_set_state(s, SERVICE_STOP_POST); |
1832 | } else | |
ac84d1fb | 1833 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1834 | |
1835 | return; | |
1836 | ||
1837 | fail: | |
f2341e0a | 1838 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1839 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1840 | } |
1841 | ||
a232ebcc | 1842 | static int state_to_kill_operation(Service *s, ServiceState state) { |
4940c0b0 LP |
1843 | switch (state) { |
1844 | ||
c87700a1 AZ |
1845 | case SERVICE_STOP_WATCHDOG: |
1846 | return KILL_WATCHDOG; | |
4940c0b0 LP |
1847 | |
1848 | case SERVICE_STOP_SIGTERM: | |
a232ebcc ZJS |
1849 | if (unit_has_job_type(UNIT(s), JOB_RESTART)) |
1850 | return KILL_RESTART; | |
1851 | _fallthrough_; | |
1852 | ||
4940c0b0 LP |
1853 | case SERVICE_FINAL_SIGTERM: |
1854 | return KILL_TERMINATE; | |
1855 | ||
1856 | case SERVICE_STOP_SIGKILL: | |
1857 | case SERVICE_FINAL_SIGKILL: | |
1858 | return KILL_KILL; | |
1859 | ||
1860 | default: | |
1861 | return _KILL_OPERATION_INVALID; | |
1862 | } | |
1863 | } | |
1864 | ||
f42806df | 1865 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1866 | int r; |
034c6ed7 LP |
1867 | |
1868 | assert(s); | |
1869 | ||
a0fef983 | 1870 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1871 | s->result = f; |
034c6ed7 | 1872 | |
50be4f4a LP |
1873 | /* Before sending any signal, make sure we track all members of this cgroup */ |
1874 | (void) unit_watch_all_pids(UNIT(s)); | |
1875 | ||
1876 | /* Also, enqueue a job that we recheck all our PIDs a bit later, given that it's likely some processes have | |
1877 | * died now */ | |
1878 | (void) unit_enqueue_rewatch_pids(UNIT(s)); | |
a911bb9a | 1879 | |
cd2086fe LP |
1880 | r = unit_kill_context( |
1881 | UNIT(s), | |
1882 | &s->kill_context, | |
a232ebcc | 1883 | state_to_kill_operation(s, state), |
cd2086fe LP |
1884 | s->main_pid, |
1885 | s->control_pid, | |
1886 | s->main_pid_alien); | |
1887 | if (r < 0) | |
1888 | goto fail; | |
034c6ed7 | 1889 | |
cd2086fe | 1890 | if (r > 0) { |
dc653bf4 JK |
1891 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), |
1892 | state == SERVICE_STOP_WATCHDOG ? service_timeout_abort_usec(s) : s->timeout_stop_usec)); | |
36c16a7c LP |
1893 | if (r < 0) |
1894 | goto fail; | |
d6ea93e3 | 1895 | |
80876c20 | 1896 | service_set_state(s, state); |
c87700a1 | 1897 | } else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1898 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
c87700a1 | 1899 | else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1900 | service_enter_stop_post(s, SERVICE_SUCCESS); |
1db0db4b | 1901 | else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb | 1902 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 1903 | else |
f42806df | 1904 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1905 | |
1906 | return; | |
1907 | ||
1908 | fail: | |
f2341e0a | 1909 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 1910 | |
c87700a1 | 1911 | if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1912 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1913 | else |
f42806df | 1914 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1915 | } |
1916 | ||
308d72dc LP |
1917 | static void service_enter_stop_by_notify(Service *s) { |
1918 | assert(s); | |
1919 | ||
50be4f4a | 1920 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
308d72dc | 1921 | |
36c16a7c | 1922 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
308d72dc | 1923 | |
6041a7ee MS |
1924 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
1925 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
1926 | } |
1927 | ||
f42806df | 1928 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1929 | int r; |
5925dd3c | 1930 | |
034c6ed7 LP |
1931 | assert(s); |
1932 | ||
a0fef983 | 1933 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1934 | s->result = f; |
034c6ed7 | 1935 | |
5e94833f | 1936 | service_unwatch_control_pid(s); |
50be4f4a | 1937 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
5e94833f | 1938 | |
117dcc57 ZJS |
1939 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1940 | if (s->control_command) { | |
867b3b7d LP |
1941 | s->control_command_id = SERVICE_EXEC_STOP; |
1942 | ||
ecedd90f LP |
1943 | r = service_spawn(s, |
1944 | s->control_command, | |
21b2ce39 | 1945 | s->timeout_stop_usec, |
78f93209 | 1946 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
1947 | &s->control_pid); |
1948 | if (r < 0) | |
034c6ed7 LP |
1949 | goto fail; |
1950 | ||
80876c20 LP |
1951 | service_set_state(s, SERVICE_STOP); |
1952 | } else | |
f42806df | 1953 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1954 | |
1955 | return; | |
1956 | ||
1957 | fail: | |
f2341e0a | 1958 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 1959 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1960 | } |
1961 | ||
957c3cf9 LP |
1962 | static bool service_good(Service *s) { |
1963 | int main_pid_ok; | |
1964 | assert(s); | |
1965 | ||
1966 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
1967 | return false; | |
1968 | ||
1969 | main_pid_ok = main_pid_good(s); | |
1970 | if (main_pid_ok > 0) /* It's alive */ | |
1971 | return true; | |
1972 | if (main_pid_ok == 0) /* It's dead */ | |
1973 | return false; | |
1974 | ||
1975 | /* OK, we don't know anything about the main PID, maybe | |
1976 | * because there is none. Let's check the control group | |
1977 | * instead. */ | |
1978 | ||
1979 | return cgroup_good(s) != 0; | |
1980 | } | |
1981 | ||
f42806df | 1982 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
1983 | assert(s); |
1984 | ||
a0fef983 | 1985 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1986 | s->result = f; |
80876c20 | 1987 | |
089b64d5 LP |
1988 | service_unwatch_control_pid(s); |
1989 | ||
ec5b1452 LP |
1990 | if (s->result != SERVICE_SUCCESS) |
1991 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
1992 | else if (service_good(s)) { | |
308d72dc | 1993 | |
ec5b1452 | 1994 | /* If there are any queued up sd_notify() notifications, process them now */ |
308d72dc LP |
1995 | if (s->notify_state == NOTIFY_RELOADING) |
1996 | service_enter_reload_by_notify(s); | |
1997 | else if (s->notify_state == NOTIFY_STOPPING) | |
1998 | service_enter_stop_by_notify(s); | |
36c16a7c | 1999 | else { |
308d72dc | 2000 | service_set_state(s, SERVICE_RUNNING); |
36c16a7c LP |
2001 | service_arm_timer(s, usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec)); |
2002 | } | |
308d72dc | 2003 | |
ec5b1452 | 2004 | } else if (s->remain_after_exit) |
80876c20 LP |
2005 | service_set_state(s, SERVICE_EXITED); |
2006 | else | |
f42806df | 2007 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
2008 | } |
2009 | ||
034c6ed7 LP |
2010 | static void service_enter_start_post(Service *s) { |
2011 | int r; | |
2012 | assert(s); | |
2013 | ||
5e94833f | 2014 | service_unwatch_control_pid(s); |
842129f5 | 2015 | service_reset_watchdog(s); |
bb242b7b | 2016 | |
117dcc57 ZJS |
2017 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
2018 | if (s->control_command) { | |
867b3b7d LP |
2019 | s->control_command_id = SERVICE_EXEC_START_POST; |
2020 | ||
ecedd90f LP |
2021 | r = service_spawn(s, |
2022 | s->control_command, | |
21b2ce39 | 2023 | s->timeout_start_usec, |
78f93209 | 2024 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
2025 | &s->control_pid); |
2026 | if (r < 0) | |
034c6ed7 LP |
2027 | goto fail; |
2028 | ||
80876c20 LP |
2029 | service_set_state(s, SERVICE_START_POST); |
2030 | } else | |
f42806df | 2031 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2032 | |
2033 | return; | |
2034 | ||
2035 | fail: | |
f2341e0a | 2036 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 2037 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2038 | } |
2039 | ||
e9a4f676 | 2040 | static void service_kill_control_process(Service *s) { |
a6951a50 | 2041 | int r; |
4ad49000 | 2042 | |
a6951a50 LP |
2043 | assert(s); |
2044 | ||
e9a4f676 LP |
2045 | if (s->control_pid <= 0) |
2046 | return; | |
4ad49000 | 2047 | |
e9a4f676 LP |
2048 | r = kill_and_sigcont(s->control_pid, SIGKILL); |
2049 | if (r < 0) { | |
2050 | _cleanup_free_ char *comm = NULL; | |
a6951a50 | 2051 | |
e9a4f676 | 2052 | (void) get_process_comm(s->control_pid, &comm); |
a6951a50 | 2053 | |
e9a4f676 LP |
2054 | log_unit_debug_errno(UNIT(s), r, "Failed to kill control process " PID_FMT " (%s), ignoring: %m", |
2055 | s->control_pid, strna(comm)); | |
a6951a50 | 2056 | } |
4ad49000 LP |
2057 | } |
2058 | ||
c53d2d54 DB |
2059 | static int service_adverse_to_leftover_processes(Service *s) { |
2060 | assert(s); | |
2061 | ||
2062 | /* KillMode=mixed and control group are used to indicate that all process should be killed off. | |
2063 | * SendSIGKILL is used for services that require a clean shutdown. These are typically database | |
2064 | * service where a SigKilled process would result in a lengthy recovery and who's shutdown or | |
2065 | * startup time is quite variable (so Timeout settings aren't of use). | |
2066 | * | |
2067 | * Here we take these two factors and refuse to start a service if there are existing processes | |
2068 | * within a control group. Databases, while generally having some protection against multiple | |
2069 | * instances running, lets not stress the rigor of these. Also ExecStartPre parts of the service | |
2070 | * aren't as rigoriously written to protect aganst against multiple use. */ | |
2071 | if (unit_warn_leftover_processes(UNIT(s)) && | |
2072 | IN_SET(s->kill_context.kill_mode, KILL_MIXED, KILL_CONTROL_GROUP) && | |
569554d9 ZJS |
2073 | !s->kill_context.send_sigkill) |
2074 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(EBUSY), | |
2075 | "Will not start SendSIGKILL=no service of type KillMode=control-group or mixed while processes exist"); | |
2076 | ||
c53d2d54 DB |
2077 | return 0; |
2078 | } | |
2079 | ||
034c6ed7 | 2080 | static void service_enter_start(Service *s) { |
4ad49000 | 2081 | ExecCommand *c; |
36c16a7c | 2082 | usec_t timeout; |
034c6ed7 LP |
2083 | pid_t pid; |
2084 | int r; | |
2085 | ||
2086 | assert(s); | |
2087 | ||
41efeaec LP |
2088 | service_unwatch_control_pid(s); |
2089 | service_unwatch_main_pid(s); | |
80876c20 | 2090 | |
c53d2d54 DB |
2091 | r = service_adverse_to_leftover_processes(s); |
2092 | if (r < 0) | |
2093 | goto fail; | |
a4634b21 | 2094 | |
867b3b7d LP |
2095 | if (s->type == SERVICE_FORKING) { |
2096 | s->control_command_id = SERVICE_EXEC_START; | |
2097 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
2098 | ||
2099 | s->main_command = NULL; | |
2100 | } else { | |
2101 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2102 | s->control_command = NULL; | |
2103 | ||
2104 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
2105 | } | |
34e9ba66 | 2106 | |
96fb8242 | 2107 | if (!c) { |
47fffb35 LP |
2108 | if (s->type != SERVICE_ONESHOT) { |
2109 | /* There's no command line configured for the main command? Hmm, that is strange. This can only | |
2110 | * happen if the configuration changes at runtime. In this case, let's enter a failure | |
2111 | * state. */ | |
b8b846d7 | 2112 | log_unit_error(UNIT(s), "There's no 'start' task anymore we could start."); |
47fffb35 LP |
2113 | r = -ENXIO; |
2114 | goto fail; | |
2115 | } | |
2116 | ||
ef5ae8e7 ZJS |
2117 | /* We force a fake state transition here. Otherwise, the unit would go directly from |
2118 | * SERVICE_DEAD to SERVICE_DEAD without SERVICE_ACTIVATING or SERVICE_ACTIVE | |
5238e957 | 2119 | * in between. This way we can later trigger actions that depend on the state |
ef5ae8e7 ZJS |
2120 | * transition, including SuccessAction=. */ |
2121 | service_set_state(s, SERVICE_START); | |
2122 | ||
96fb8242 LP |
2123 | service_enter_start_post(s); |
2124 | return; | |
2125 | } | |
2126 | ||
36c16a7c LP |
2127 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) |
2128 | /* For simple + idle this is the main process. We don't apply any timeout here, but | |
2129 | * service_enter_running() will later apply the .runtime_max_usec timeout. */ | |
2130 | timeout = USEC_INFINITY; | |
2131 | else | |
2132 | timeout = s->timeout_start_usec; | |
2133 | ||
ecedd90f LP |
2134 | r = service_spawn(s, |
2135 | c, | |
36c16a7c | 2136 | timeout, |
1703fa41 | 2137 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
2138 | &pid); |
2139 | if (r < 0) | |
034c6ed7 LP |
2140 | goto fail; |
2141 | ||
36c16a7c | 2142 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) { |
034c6ed7 LP |
2143 | /* For simple services we immediately start |
2144 | * the START_POST binaries. */ | |
2145 | ||
5925dd3c | 2146 | service_set_main_pid(s, pid); |
034c6ed7 LP |
2147 | service_enter_start_post(s); |
2148 | ||
2149 | } else if (s->type == SERVICE_FORKING) { | |
2150 | ||
2151 | /* For forking services we wait until the start | |
2152 | * process exited. */ | |
2153 | ||
e55224ca | 2154 | s->control_pid = pid; |
80876c20 LP |
2155 | service_set_state(s, SERVICE_START); |
2156 | ||
5686391b | 2157 | } else if (IN_SET(s->type, SERVICE_ONESHOT, SERVICE_DBUS, SERVICE_NOTIFY, SERVICE_EXEC)) { |
7d55e835 | 2158 | |
5686391b | 2159 | /* For oneshot services we wait until the start process exited, too, but it is our main process. */ |
7d55e835 | 2160 | |
5686391b LP |
2161 | /* For D-Bus services we know the main pid right away, but wait for the bus name to appear on the |
2162 | * bus. 'notify' and 'exec' services are similar. */ | |
05e343b7 | 2163 | |
5925dd3c | 2164 | service_set_main_pid(s, pid); |
80876c20 | 2165 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
2166 | } else |
2167 | assert_not_reached("Unknown service type"); | |
2168 | ||
2169 | return; | |
2170 | ||
2171 | fail: | |
f2341e0a | 2172 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
c3fda31d | 2173 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2174 | } |
2175 | ||
2176 | static void service_enter_start_pre(Service *s) { | |
2177 | int r; | |
2178 | ||
2179 | assert(s); | |
2180 | ||
5e94833f LP |
2181 | service_unwatch_control_pid(s); |
2182 | ||
117dcc57 ZJS |
2183 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
2184 | if (s->control_command) { | |
8f53a7b8 | 2185 | |
c53d2d54 DB |
2186 | r = service_adverse_to_leftover_processes(s); |
2187 | if (r < 0) | |
2188 | goto fail; | |
a4634b21 | 2189 | |
867b3b7d LP |
2190 | s->control_command_id = SERVICE_EXEC_START_PRE; |
2191 | ||
ecedd90f LP |
2192 | r = service_spawn(s, |
2193 | s->control_command, | |
21b2ce39 | 2194 | s->timeout_start_usec, |
1703fa41 | 2195 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, |
ecedd90f LP |
2196 | &s->control_pid); |
2197 | if (r < 0) | |
034c6ed7 LP |
2198 | goto fail; |
2199 | ||
80876c20 LP |
2200 | service_set_state(s, SERVICE_START_PRE); |
2201 | } else | |
034c6ed7 LP |
2202 | service_enter_start(s); |
2203 | ||
2204 | return; | |
2205 | ||
2206 | fail: | |
f2341e0a | 2207 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 2208 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2209 | } |
2210 | ||
31cd5f63 AZ |
2211 | static void service_enter_condition(Service *s) { |
2212 | int r; | |
2213 | ||
2214 | assert(s); | |
2215 | ||
2216 | service_unwatch_control_pid(s); | |
2217 | ||
2218 | s->control_command = s->exec_command[SERVICE_EXEC_CONDITION]; | |
2219 | if (s->control_command) { | |
2220 | ||
2221 | r = service_adverse_to_leftover_processes(s); | |
2222 | if (r < 0) | |
2223 | goto fail; | |
2224 | ||
2225 | s->control_command_id = SERVICE_EXEC_CONDITION; | |
2226 | ||
2227 | r = service_spawn(s, | |
2228 | s->control_command, | |
2229 | s->timeout_start_usec, | |
2230 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, | |
2231 | &s->control_pid); | |
2232 | ||
2233 | if (r < 0) | |
2234 | goto fail; | |
2235 | ||
2236 | service_set_state(s, SERVICE_CONDITION); | |
2237 | } else | |
2238 | service_enter_start_pre(s); | |
2239 | ||
2240 | return; | |
2241 | ||
2242 | fail: | |
2243 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'exec-condition' task: %m"); | |
2244 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); | |
2245 | } | |
2246 | ||
034c6ed7 | 2247 | static void service_enter_restart(Service *s) { |
4afd3348 | 2248 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 2249 | int r; |
398ef8ba | 2250 | |
034c6ed7 LP |
2251 | assert(s); |
2252 | ||
28a2dfe8 | 2253 | if (unit_has_job_type(UNIT(s), JOB_STOP)) { |
a8bb2e65 | 2254 | /* Don't restart things if we are going down anyway */ |
f2341e0a | 2255 | log_unit_info(UNIT(s), "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 2256 | |
36c16a7c | 2257 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
a8bb2e65 | 2258 | if (r < 0) |
2edfa366 | 2259 | goto fail; |
feae8adb DW |
2260 | |
2261 | return; | |
2edfa366 LP |
2262 | } |
2263 | ||
48bb5876 DW |
2264 | /* Any units that are bound to this service must also be |
2265 | * restarted. We use JOB_RESTART (instead of the more obvious | |
2266 | * JOB_START) here so that those dependency jobs will be added | |
2267 | * as well. */ | |
50cbaba4 | 2268 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_REPLACE, NULL, &error, NULL); |
48bb5876 | 2269 | if (r < 0) |
034c6ed7 LP |
2270 | goto fail; |
2271 | ||
7a0019d3 LP |
2272 | /* Count the jobs we enqueue for restarting. This counter is maintained as long as the unit isn't fully |
2273 | * stopped, i.e. as long as it remains up or remains in auto-start states. The use can reset the counter | |
2274 | * explicitly however via the usual "systemctl reset-failure" logic. */ | |
2275 | s->n_restarts ++; | |
2276 | s->flush_n_restarts = false; | |
2277 | ||
2278 | log_struct(LOG_INFO, | |
2279 | "MESSAGE_ID=" SD_MESSAGE_UNIT_RESTART_SCHEDULED_STR, | |
2280 | LOG_UNIT_ID(UNIT(s)), | |
f1c50bec | 2281 | LOG_UNIT_INVOCATION_ID(UNIT(s)), |
7a0019d3 | 2282 | LOG_UNIT_MESSAGE(UNIT(s), "Scheduled restart job, restart counter is at %u.", s->n_restarts), |
a1230ff9 | 2283 | "N_RESTARTS=%u", s->n_restarts); |
7a0019d3 LP |
2284 | |
2285 | /* Notify clients about changed restart counter */ | |
2286 | unit_add_to_dbus_queue(UNIT(s)); | |
2287 | ||
a8bb2e65 LP |
2288 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
2289 | * it will be canceled as part of the service_stop() call that | |
2290 | * is executed as part of JOB_RESTART. */ | |
2291 | ||
034c6ed7 LP |
2292 | return; |
2293 | ||
2294 | fail: | |
f2341e0a | 2295 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, -r)); |
f42806df | 2296 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
2297 | } |
2298 | ||
308d72dc | 2299 | static void service_enter_reload_by_notify(Service *s) { |
15d167f8 JW |
2300 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
2301 | int r; | |
2302 | ||
308d72dc LP |
2303 | assert(s); |
2304 | ||
36c16a7c | 2305 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_start_usec)); |
308d72dc | 2306 | service_set_state(s, SERVICE_RELOAD); |
15d167f8 JW |
2307 | |
2308 | /* service_enter_reload_by_notify is never called during a reload, thus no loops are possible. */ | |
2309 | r = manager_propagate_reload(UNIT(s)->manager, UNIT(s), JOB_FAIL, &error); | |
2310 | if (r < 0) | |
2311 | log_unit_warning(UNIT(s), "Failed to schedule propagation of reload: %s", bus_error_message(&error, -r)); | |
308d72dc LP |
2312 | } |
2313 | ||
034c6ed7 LP |
2314 | static void service_enter_reload(Service *s) { |
2315 | int r; | |
2316 | ||
2317 | assert(s); | |
2318 | ||
5e94833f | 2319 | service_unwatch_control_pid(s); |
95c906ae | 2320 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 2321 | |
117dcc57 ZJS |
2322 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
2323 | if (s->control_command) { | |
867b3b7d LP |
2324 | s->control_command_id = SERVICE_EXEC_RELOAD; |
2325 | ||
ecedd90f LP |
2326 | r = service_spawn(s, |
2327 | s->control_command, | |
21b2ce39 | 2328 | s->timeout_start_usec, |
78f93209 | 2329 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
2330 | &s->control_pid); |
2331 | if (r < 0) | |
034c6ed7 LP |
2332 | goto fail; |
2333 | ||
80876c20 LP |
2334 | service_set_state(s, SERVICE_RELOAD); |
2335 | } else | |
f42806df | 2336 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2337 | |
2338 | return; | |
2339 | ||
2340 | fail: | |
f2341e0a | 2341 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
2342 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2343 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2344 | } |
2345 | ||
f42806df | 2346 | static void service_run_next_control(Service *s) { |
36c16a7c | 2347 | usec_t timeout; |
034c6ed7 LP |
2348 | int r; |
2349 | ||
2350 | assert(s); | |
2351 | assert(s->control_command); | |
2352 | assert(s->control_command->command_next); | |
2353 | ||
34e9ba66 | 2354 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2355 | |
34e9ba66 | 2356 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2357 | service_unwatch_control_pid(s); |
2358 | ||
31cd5f63 | 2359 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
36c16a7c LP |
2360 | timeout = s->timeout_start_usec; |
2361 | else | |
2362 | timeout = s->timeout_stop_usec; | |
2363 | ||
ecedd90f LP |
2364 | r = service_spawn(s, |
2365 | s->control_command, | |
36c16a7c | 2366 | timeout, |
1703fa41 | 2367 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL| |
31cd5f63 | 2368 | (IN_SET(s->control_command_id, SERVICE_EXEC_CONDITION, SERVICE_EXEC_START_PRE, SERVICE_EXEC_STOP_POST) ? EXEC_APPLY_TTY_STDIN : 0)| |
78f93209 LP |
2369 | (IN_SET(s->control_command_id, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST) ? EXEC_SETENV_RESULT : 0)| |
2370 | (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 |
2371 | &s->control_pid); |
2372 | if (r < 0) | |
034c6ed7 LP |
2373 | goto fail; |
2374 | ||
2375 | return; | |
2376 | ||
2377 | fail: | |
f2341e0a | 2378 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 2379 | |
31cd5f63 | 2380 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START_POST, SERVICE_STOP)) |
f42806df | 2381 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2382 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2383 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2384 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2385 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2386 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2387 | } else |
f42806df | 2388 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2389 | } |
2390 | ||
f42806df | 2391 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2392 | pid_t pid; |
2393 | int r; | |
2394 | ||
2395 | assert(s); | |
867b3b7d LP |
2396 | assert(s->main_command); |
2397 | assert(s->main_command->command_next); | |
2398 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2399 | |
867b3b7d | 2400 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2401 | service_unwatch_main_pid(s); |
2402 | ||
ecedd90f LP |
2403 | r = service_spawn(s, |
2404 | s->main_command, | |
21b2ce39 | 2405 | s->timeout_start_usec, |
1703fa41 | 2406 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
2407 | &pid); |
2408 | if (r < 0) | |
34e9ba66 LP |
2409 | goto fail; |
2410 | ||
2411 | service_set_main_pid(s, pid); | |
2412 | ||
2413 | return; | |
2414 | ||
2415 | fail: | |
f2341e0a | 2416 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 2417 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2418 | } |
2419 | ||
87f0e418 LP |
2420 | static int service_start(Unit *u) { |
2421 | Service *s = SERVICE(u); | |
07299350 | 2422 | int r; |
5cb5a6ff LP |
2423 | |
2424 | assert(s); | |
2425 | ||
034c6ed7 LP |
2426 | /* We cannot fulfill this request right now, try again later |
2427 | * please! */ | |
a00973af | 2428 | if (IN_SET(s->state, |
c87700a1 | 2429 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 | 2430 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, SERVICE_CLEANING)) |
5cb5a6ff LP |
2431 | return -EAGAIN; |
2432 | ||
034c6ed7 | 2433 | /* Already on it! */ |
31cd5f63 | 2434 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
2435 | return 0; |
2436 | ||
2e9d6c12 | 2437 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2438 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2439 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2440 | * service should be manually restarted, not started. We |
2441 | * simply return EAGAIN here, so that any start jobs stay | |
2442 | * queued, and assume that the auto restart timer will | |
2443 | * eventually trigger the restart. */ | |
2444 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2445 | return -EAGAIN; |
2e9d6c12 | 2446 | |
a00973af | 2447 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 2448 | |
07299350 | 2449 | /* Make sure we don't enter a busy loop of some kind. */ |
97a3f4ee | 2450 | r = unit_test_start_limit(u); |
07299350 LP |
2451 | if (r < 0) { |
2452 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT_HIT, false); | |
2453 | return r; | |
2454 | } | |
2455 | ||
4b58153d LP |
2456 | r = unit_acquire_invocation_id(u); |
2457 | if (r < 0) | |
2458 | return r; | |
2459 | ||
f42806df LP |
2460 | s->result = SERVICE_SUCCESS; |
2461 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2462 | s->main_pid_known = false; |
6dfa5494 | 2463 | s->main_pid_alien = false; |
47342320 | 2464 | s->forbid_restart = false; |
3c7416b6 | 2465 | |
a1e58e8e | 2466 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
2467 | s->status_errno = 0; |
2468 | ||
308d72dc LP |
2469 | s->notify_state = NOTIFY_UNKNOWN; |
2470 | ||
aa8c4bbf | 2471 | s->watchdog_original_usec = s->watchdog_usec; |
2787d83c | 2472 | s->watchdog_override_enable = false; |
aa8c4bbf | 2473 | s->watchdog_override_usec = USEC_INFINITY; |
2787d83c | 2474 | |
6a1d4d9f LP |
2475 | exec_command_reset_status_list_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
2476 | exec_status_reset(&s->main_exec_status); | |
2477 | ||
7a0019d3 LP |
2478 | /* This is not an automatic restart? Flush the restart counter then */ |
2479 | if (s->flush_n_restarts) { | |
2480 | s->n_restarts = 0; | |
2481 | s->flush_n_restarts = false; | |
2482 | } | |
2483 | ||
6a1d4d9f LP |
2484 | u->reset_accounting = true; |
2485 | ||
31cd5f63 | 2486 | service_enter_condition(s); |
82a2b6bb | 2487 | return 1; |
5cb5a6ff LP |
2488 | } |
2489 | ||
87f0e418 LP |
2490 | static int service_stop(Unit *u) { |
2491 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2492 | |
2493 | assert(s); | |
2494 | ||
a509f0e6 | 2495 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2496 | s->forbid_restart = true; |
034c6ed7 | 2497 | |
e537352b | 2498 | /* Already on it */ |
a00973af | 2499 | if (IN_SET(s->state, |
dc653bf4 | 2500 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
a00973af | 2501 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) |
e537352b LP |
2502 | return 0; |
2503 | ||
f0c7b229 | 2504 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2505 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2506 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2507 | return 0; |
2508 | } | |
2509 | ||
3f6c78dc LP |
2510 | /* If there's already something running we go directly into |
2511 | * kill mode. */ | |
31cd5f63 | 2512 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD, SERVICE_STOP_WATCHDOG)) { |
f42806df | 2513 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2514 | return 0; |
2515 | } | |
5cb5a6ff | 2516 | |
4c2f5842 LP |
2517 | /* If we are currently cleaning, then abort it, brutally. */ |
2518 | if (s->state == SERVICE_CLEANING) { | |
2519 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); | |
2520 | return 0; | |
2521 | } | |
2522 | ||
a00973af | 2523 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2524 | |
f42806df | 2525 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2526 | return 1; |
5cb5a6ff LP |
2527 | } |
2528 | ||
87f0e418 LP |
2529 | static int service_reload(Unit *u) { |
2530 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2531 | |
2532 | assert(s); | |
2533 | ||
3742095b | 2534 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
034c6ed7 LP |
2535 | |
2536 | service_enter_reload(s); | |
2d018ae2 | 2537 | return 1; |
5cb5a6ff LP |
2538 | } |
2539 | ||
44a6b1b6 | 2540 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2541 | Service *s = SERVICE(u); |
034c6ed7 LP |
2542 | |
2543 | assert(s); | |
2544 | ||
2545 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2546 | } | |
2547 | ||
e266c068 MS |
2548 | static unsigned service_exec_command_index(Unit *u, ServiceExecCommand id, ExecCommand *current) { |
2549 | Service *s = SERVICE(u); | |
2550 | unsigned idx = 0; | |
2551 | ExecCommand *first, *c; | |
2552 | ||
2553 | assert(s); | |
2554 | ||
2555 | first = s->exec_command[id]; | |
2556 | ||
2557 | /* Figure out where we are in the list by walking back to the beginning */ | |
2558 | for (c = current; c != first; c = c->command_prev) | |
2559 | idx++; | |
2560 | ||
2561 | return idx; | |
2562 | } | |
2563 | ||
2564 | static int service_serialize_exec_command(Unit *u, FILE *f, ExecCommand *command) { | |
d68c645b LP |
2565 | _cleanup_free_ char *args = NULL, *p = NULL; |
2566 | size_t allocated = 0, length = 0; | |
e266c068 | 2567 | Service *s = SERVICE(u); |
d68c645b | 2568 | const char *type, *key; |
e266c068 MS |
2569 | ServiceExecCommand id; |
2570 | unsigned idx; | |
e266c068 | 2571 | char **arg; |
e266c068 MS |
2572 | |
2573 | assert(s); | |
2574 | assert(f); | |
2575 | ||
2576 | if (!command) | |
2577 | return 0; | |
2578 | ||
2579 | if (command == s->control_command) { | |
2580 | type = "control"; | |
2581 | id = s->control_command_id; | |
2582 | } else { | |
2583 | type = "main"; | |
2584 | id = SERVICE_EXEC_START; | |
2585 | } | |
2586 | ||
2587 | idx = service_exec_command_index(u, id, command); | |
2588 | ||
2589 | STRV_FOREACH(arg, command->argv) { | |
e266c068 | 2590 | _cleanup_free_ char *e = NULL; |
d68c645b | 2591 | size_t n; |
e266c068 | 2592 | |
d68c645b | 2593 | e = cescape(*arg); |
e266c068 | 2594 | if (!e) |
d68c645b | 2595 | return log_oom(); |
e266c068 MS |
2596 | |
2597 | n = strlen(e); | |
334c0979 | 2598 | if (!GREEDY_REALLOC(args, allocated, length + 2 + n + 2)) |
d68c645b | 2599 | return log_oom(); |
e266c068 MS |
2600 | |
2601 | if (length > 0) | |
2602 | args[length++] = ' '; | |
2603 | ||
334c0979 | 2604 | args[length++] = '"'; |
e266c068 MS |
2605 | memcpy(args + length, e, n); |
2606 | length += n; | |
334c0979 | 2607 | args[length++] = '"'; |
e266c068 MS |
2608 | } |
2609 | ||
2610 | if (!GREEDY_REALLOC(args, allocated, length + 1)) | |
d68c645b LP |
2611 | return log_oom(); |
2612 | ||
e266c068 MS |
2613 | args[length++] = 0; |
2614 | ||
d68c645b | 2615 | p = cescape(command->path); |
e266c068 MS |
2616 | if (!p) |
2617 | return -ENOMEM; | |
2618 | ||
d68c645b LP |
2619 | key = strjoina(type, "-command"); |
2620 | return serialize_item_format(f, key, "%s %u %s %s", service_exec_command_to_string(id), idx, p, args); | |
e266c068 MS |
2621 | } |
2622 | ||
a16e1123 LP |
2623 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2624 | Service *s = SERVICE(u); | |
2339fc93 | 2625 | ServiceFDStore *fs; |
a34ceba6 | 2626 | int r; |
a16e1123 LP |
2627 | |
2628 | assert(u); | |
2629 | assert(f); | |
2630 | assert(fds); | |
2631 | ||
d68c645b LP |
2632 | (void) serialize_item(f, "state", service_state_to_string(s->state)); |
2633 | (void) serialize_item(f, "result", service_result_to_string(s->result)); | |
2634 | (void) serialize_item(f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2635 | |
2636 | if (s->control_pid > 0) | |
d68c645b | 2637 | (void) serialize_item_format(f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2638 | |
5925dd3c | 2639 | if (s->main_pid_known && s->main_pid > 0) |
d68c645b | 2640 | (void) serialize_item_format(f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 | 2641 | |
d68c645b LP |
2642 | (void) serialize_bool(f, "main-pid-known", s->main_pid_known); |
2643 | (void) serialize_bool(f, "bus-name-good", s->bus_name_good); | |
2644 | (void) serialize_bool(f, "bus-name-owner", s->bus_name_owner); | |
a16e1123 | 2645 | |
d68c645b LP |
2646 | (void) serialize_item_format(f, "n-restarts", "%u", s->n_restarts); |
2647 | (void) serialize_bool(f, "flush-n-restarts", s->flush_n_restarts); | |
7a0019d3 | 2648 | |
d68c645b | 2649 | r = serialize_item_escaped(f, "status-text", s->status_text); |
a34ceba6 LP |
2650 | if (r < 0) |
2651 | return r; | |
3a2776bc | 2652 | |
e266c068 MS |
2653 | service_serialize_exec_command(u, f, s->control_command); |
2654 | service_serialize_exec_command(u, f, s->main_command); | |
a16e1123 | 2655 | |
d68c645b | 2656 | r = serialize_fd(f, fds, "stdin-fd", s->stdin_fd); |
a34ceba6 LP |
2657 | if (r < 0) |
2658 | return r; | |
d68c645b | 2659 | r = serialize_fd(f, fds, "stdout-fd", s->stdout_fd); |
a34ceba6 LP |
2660 | if (r < 0) |
2661 | return r; | |
d68c645b | 2662 | r = serialize_fd(f, fds, "stderr-fd", s->stderr_fd); |
a34ceba6 LP |
2663 | if (r < 0) |
2664 | return r; | |
e44da745 | 2665 | |
5686391b | 2666 | if (s->exec_fd_event_source) { |
d68c645b | 2667 | r = serialize_fd(f, fds, "exec-fd", sd_event_source_get_io_fd(s->exec_fd_event_source)); |
5686391b LP |
2668 | if (r < 0) |
2669 | return r; | |
d68c645b LP |
2670 | |
2671 | (void) serialize_bool(f, "exec-fd-hot", s->exec_fd_hot); | |
5686391b LP |
2672 | } |
2673 | ||
9dfb64f8 | 2674 | if (UNIT_ISSET(s->accept_socket)) { |
d68c645b | 2675 | r = serialize_item(f, "accept-socket", UNIT_DEREF(s->accept_socket)->id); |
9dfb64f8 ZJS |
2676 | if (r < 0) |
2677 | return r; | |
2678 | } | |
2679 | ||
d68c645b | 2680 | r = serialize_fd(f, fds, "socket-fd", s->socket_fd); |
a34ceba6 LP |
2681 | if (r < 0) |
2682 | return r; | |
e44da745 | 2683 | |
2339fc93 | 2684 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2685 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2686 | int copy; |
2687 | ||
2688 | copy = fdset_put_dup(fds, fs->fd); | |
2689 | if (copy < 0) | |
d68c645b | 2690 | return log_error_errno(copy, "Failed to copy file descriptor for serialization: %m"); |
2339fc93 | 2691 | |
8dd4c05b | 2692 | c = cescape(fs->fdname); |
d68c645b LP |
2693 | if (!c) |
2694 | return log_oom(); | |
8dd4c05b | 2695 | |
d68c645b | 2696 | (void) serialize_item_format(f, "fd-store-fd", "%i %s", copy, c); |
2339fc93 LP |
2697 | } |
2698 | ||
ecdbca40 | 2699 | if (s->main_exec_status.pid > 0) { |
d68c645b LP |
2700 | (void) serialize_item_format(f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2701 | (void) serialize_dual_timestamp(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2702 | (void) serialize_dual_timestamp(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2703 | |
799fd0fd | 2704 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
d68c645b LP |
2705 | (void) serialize_item_format(f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2706 | (void) serialize_item_format(f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2707 | } |
2708 | } | |
f06db334 | 2709 | |
d68c645b LP |
2710 | (void) serialize_dual_timestamp(f, "watchdog-timestamp", &s->watchdog_timestamp); |
2711 | (void) serialize_bool(f, "forbid-restart", s->forbid_restart); | |
6aca9a58 | 2712 | |
2787d83c | 2713 | if (s->watchdog_override_enable) |
d68c645b | 2714 | (void) serialize_item_format(f, "watchdog-override-usec", USEC_FMT, s->watchdog_override_usec); |
2787d83c | 2715 | |
aa8c4bbf LP |
2716 | if (s->watchdog_original_usec != USEC_INFINITY) |
2717 | (void) serialize_item_format(f, "watchdog-original-usec", USEC_FMT, s->watchdog_original_usec); | |
2718 | ||
a16e1123 LP |
2719 | return 0; |
2720 | } | |
2721 | ||
e266c068 MS |
2722 | static int service_deserialize_exec_command(Unit *u, const char *key, const char *value) { |
2723 | Service *s = SERVICE(u); | |
2724 | int r; | |
2725 | unsigned idx = 0, i; | |
2726 | bool control, found = false; | |
2727 | ServiceExecCommand id = _SERVICE_EXEC_COMMAND_INVALID; | |
2728 | ExecCommand *command = NULL; | |
6eeec374 | 2729 | _cleanup_free_ char *path = NULL; |
e266c068 MS |
2730 | _cleanup_strv_free_ char **argv = NULL; |
2731 | ||
2732 | enum ExecCommandState { | |
2733 | STATE_EXEC_COMMAND_TYPE, | |
2734 | STATE_EXEC_COMMAND_INDEX, | |
2735 | STATE_EXEC_COMMAND_PATH, | |
2736 | STATE_EXEC_COMMAND_ARGS, | |
2737 | _STATE_EXEC_COMMAND_MAX, | |
2738 | _STATE_EXEC_COMMAND_INVALID = -1, | |
2739 | } state; | |
2740 | ||
2741 | assert(s); | |
2742 | assert(key); | |
2743 | assert(value); | |
2744 | ||
2745 | control = streq(key, "control-command"); | |
2746 | ||
2747 | state = STATE_EXEC_COMMAND_TYPE; | |
2748 | ||
2749 | for (;;) { | |
2750 | _cleanup_free_ char *arg = NULL; | |
2751 | ||
334c0979 | 2752 | r = extract_first_word(&value, &arg, NULL, EXTRACT_CUNESCAPE | EXTRACT_UNQUOTE); |
efa3f34e LP |
2753 | if (r < 0) |
2754 | return r; | |
e266c068 MS |
2755 | if (r == 0) |
2756 | break; | |
e266c068 MS |
2757 | |
2758 | switch (state) { | |
2759 | case STATE_EXEC_COMMAND_TYPE: | |
2760 | id = service_exec_command_from_string(arg); | |
2761 | if (id < 0) | |
2762 | return -EINVAL; | |
2763 | ||
2764 | state = STATE_EXEC_COMMAND_INDEX; | |
2765 | break; | |
2766 | case STATE_EXEC_COMMAND_INDEX: | |
2767 | r = safe_atou(arg, &idx); | |
2768 | if (r < 0) | |
2769 | return -EINVAL; | |
2770 | ||
2771 | state = STATE_EXEC_COMMAND_PATH; | |
2772 | break; | |
2773 | case STATE_EXEC_COMMAND_PATH: | |
ae2a15bc | 2774 | path = TAKE_PTR(arg); |
e266c068 MS |
2775 | state = STATE_EXEC_COMMAND_ARGS; |
2776 | ||
2777 | if (!path_is_absolute(path)) | |
2778 | return -EINVAL; | |
2779 | break; | |
2780 | case STATE_EXEC_COMMAND_ARGS: | |
2781 | r = strv_extend(&argv, arg); | |
2782 | if (r < 0) | |
2783 | return -ENOMEM; | |
2784 | break; | |
2785 | default: | |
2786 | assert_not_reached("Unknown error at deserialization of exec command"); | |
2787 | break; | |
2788 | } | |
2789 | } | |
2790 | ||
2791 | if (state != STATE_EXEC_COMMAND_ARGS) | |
2792 | return -EINVAL; | |
2793 | ||
2794 | /* Let's check whether exec command on given offset matches data that we just deserialized */ | |
2795 | for (command = s->exec_command[id], i = 0; command; command = command->command_next, i++) { | |
2796 | if (i != idx) | |
2797 | continue; | |
2798 | ||
2799 | found = strv_equal(argv, command->argv) && streq(command->path, path); | |
2800 | break; | |
2801 | } | |
2802 | ||
2803 | if (!found) { | |
2804 | /* Command at the index we serialized is different, let's look for command that exactly | |
2805 | * matches but is on different index. If there is no such command we will not resume execution. */ | |
2806 | for (command = s->exec_command[id]; command; command = command->command_next) | |
2807 | if (strv_equal(command->argv, argv) && streq(command->path, path)) | |
2808 | break; | |
2809 | } | |
2810 | ||
2811 | if (command && control) | |
2812 | s->control_command = command; | |
2813 | else if (command) | |
2814 | s->main_command = command; | |
2815 | else | |
2816 | log_unit_warning(u, "Current command vanished from the unit file, execution of the command list won't be resumed."); | |
2817 | ||
2818 | return 0; | |
2819 | } | |
2820 | ||
a16e1123 LP |
2821 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { |
2822 | Service *s = SERVICE(u); | |
2339fc93 | 2823 | int r; |
a16e1123 LP |
2824 | |
2825 | assert(u); | |
2826 | assert(key); | |
2827 | assert(value); | |
2828 | assert(fds); | |
2829 | ||
2830 | if (streq(key, "state")) { | |
2831 | ServiceState state; | |
2832 | ||
117dcc57 ZJS |
2833 | state = service_state_from_string(value); |
2834 | if (state < 0) | |
f2341e0a | 2835 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2836 | else |
2837 | s->deserialized_state = state; | |
f42806df LP |
2838 | } else if (streq(key, "result")) { |
2839 | ServiceResult f; | |
2840 | ||
2841 | f = service_result_from_string(value); | |
2842 | if (f < 0) | |
f2341e0a | 2843 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2844 | else if (f != SERVICE_SUCCESS) |
2845 | s->result = f; | |
2846 | ||
2847 | } else if (streq(key, "reload-result")) { | |
2848 | ServiceResult f; | |
2849 | ||
2850 | f = service_result_from_string(value); | |
2851 | if (f < 0) | |
f2341e0a | 2852 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2853 | else if (f != SERVICE_SUCCESS) |
2854 | s->reload_result = f; | |
a16e1123 | 2855 | |
a16e1123 | 2856 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2857 | pid_t pid; |
a16e1123 | 2858 | |
e364ad06 | 2859 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2860 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2861 | else |
e55224ca | 2862 | s->control_pid = pid; |
a16e1123 | 2863 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2864 | pid_t pid; |
a16e1123 | 2865 | |
e364ad06 | 2866 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2867 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
eabd3e56 LP |
2868 | else |
2869 | (void) service_set_main_pid(s, pid); | |
a16e1123 LP |
2870 | } else if (streq(key, "main-pid-known")) { |
2871 | int b; | |
2872 | ||
117dcc57 ZJS |
2873 | b = parse_boolean(value); |
2874 | if (b < 0) | |
f2341e0a | 2875 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2876 | else |
2877 | s->main_pid_known = b; | |
de1d4f9b WF |
2878 | } else if (streq(key, "bus-name-good")) { |
2879 | int b; | |
2880 | ||
2881 | b = parse_boolean(value); | |
2882 | if (b < 0) | |
2883 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2884 | else | |
2885 | s->bus_name_good = b; | |
d8ccf5fd DM |
2886 | } else if (streq(key, "bus-name-owner")) { |
2887 | r = free_and_strdup(&s->bus_name_owner, value); | |
2888 | if (r < 0) | |
2889 | log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value); | |
3a2776bc LP |
2890 | } else if (streq(key, "status-text")) { |
2891 | char *t; | |
2892 | ||
f2341e0a LP |
2893 | r = cunescape(value, 0, &t); |
2894 | if (r < 0) | |
5e1ee764 | 2895 | log_unit_debug_errno(u, r, "Failed to unescape status text '%s': %m", value); |
efa3f34e LP |
2896 | else |
2897 | free_and_replace(s->status_text, t); | |
3a2776bc | 2898 | |
9dfb64f8 ZJS |
2899 | } else if (streq(key, "accept-socket")) { |
2900 | Unit *socket; | |
2901 | ||
2902 | r = manager_load_unit(u->manager, value, NULL, NULL, &socket); | |
2903 | if (r < 0) | |
5e1ee764 | 2904 | log_unit_debug_errno(u, r, "Failed to load accept-socket unit '%s': %m", value); |
9dfb64f8 | 2905 | else { |
7f7d01ed | 2906 | unit_ref_set(&s->accept_socket, u, socket); |
9dfb64f8 ZJS |
2907 | SOCKET(socket)->n_connections++; |
2908 | } | |
2909 | ||
a16e1123 LP |
2910 | } else if (streq(key, "socket-fd")) { |
2911 | int fd; | |
2912 | ||
2913 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2914 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 2915 | else { |
574634bc | 2916 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
2917 | s->socket_fd = fdset_remove(fds, fd); |
2918 | } | |
2339fc93 | 2919 | } else if (streq(key, "fd-store-fd")) { |
8dd4c05b LP |
2920 | const char *fdv; |
2921 | size_t pf; | |
2339fc93 LP |
2922 | int fd; |
2923 | ||
8dd4c05b LP |
2924 | pf = strcspn(value, WHITESPACE); |
2925 | fdv = strndupa(value, pf); | |
2926 | ||
2927 | if (safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2928 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
2339fc93 | 2929 | else { |
8dd4c05b LP |
2930 | _cleanup_free_ char *t = NULL; |
2931 | const char *fdn; | |
2932 | ||
2933 | fdn = value + pf; | |
2934 | fdn += strspn(fdn, WHITESPACE); | |
2935 | (void) cunescape(fdn, 0, &t); | |
2936 | ||
2937 | r = service_add_fd_store(s, fd, t); | |
2339fc93 | 2938 | if (r < 0) |
f2341e0a | 2939 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); |
9021ff17 | 2940 | else |
2339fc93 LP |
2941 | fdset_remove(fds, fd); |
2942 | } | |
2943 | ||
ecdbca40 LP |
2944 | } else if (streq(key, "main-exec-status-pid")) { |
2945 | pid_t pid; | |
2946 | ||
e364ad06 | 2947 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2948 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
2949 | else |
2950 | s->main_exec_status.pid = pid; | |
2951 | } else if (streq(key, "main-exec-status-code")) { | |
2952 | int i; | |
2953 | ||
e364ad06 | 2954 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2955 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
2956 | else |
2957 | s->main_exec_status.code = i; | |
2958 | } else if (streq(key, "main-exec-status-status")) { | |
2959 | int i; | |
2960 | ||
e364ad06 | 2961 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2962 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
2963 | else |
2964 | s->main_exec_status.status = i; | |
799fd0fd | 2965 | } else if (streq(key, "main-exec-status-start")) |
d68c645b | 2966 | deserialize_dual_timestamp(value, &s->main_exec_status.start_timestamp); |
799fd0fd | 2967 | else if (streq(key, "main-exec-status-exit")) |
d68c645b | 2968 | deserialize_dual_timestamp(value, &s->main_exec_status.exit_timestamp); |
a6927d7f | 2969 | else if (streq(key, "watchdog-timestamp")) |
d68c645b | 2970 | deserialize_dual_timestamp(value, &s->watchdog_timestamp); |
613b411c | 2971 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2972 | int b; |
2973 | ||
2974 | b = parse_boolean(value); | |
2975 | if (b < 0) | |
f2341e0a | 2976 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
2977 | else |
2978 | s->forbid_restart = b; | |
a34ceba6 LP |
2979 | } else if (streq(key, "stdin-fd")) { |
2980 | int fd; | |
2981 | ||
2982 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2983 | log_unit_debug(u, "Failed to parse stdin-fd value: %s", value); | |
2984 | else { | |
2985 | asynchronous_close(s->stdin_fd); | |
2986 | s->stdin_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2987 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2988 | } |
2989 | } else if (streq(key, "stdout-fd")) { | |
2990 | int fd; | |
2991 | ||
2992 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2993 | log_unit_debug(u, "Failed to parse stdout-fd value: %s", value); | |
2994 | else { | |
2995 | asynchronous_close(s->stdout_fd); | |
2996 | s->stdout_fd = fdset_remove(fds, fd); | |
1e22b5cd | 2997 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
2998 | } |
2999 | } else if (streq(key, "stderr-fd")) { | |
3000 | int fd; | |
3001 | ||
3002 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3003 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
3004 | else { | |
3005 | asynchronous_close(s->stderr_fd); | |
3006 | s->stderr_fd = fdset_remove(fds, fd); | |
1e22b5cd | 3007 | s->exec_context.stdio_as_fds = true; |
a34ceba6 | 3008 | } |
5686391b LP |
3009 | } else if (streq(key, "exec-fd")) { |
3010 | int fd; | |
3011 | ||
3012 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3013 | log_unit_debug(u, "Failed to parse exec-fd value: %s", value); | |
3014 | else { | |
3015 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
3016 | ||
3017 | fd = fdset_remove(fds, fd); | |
3018 | if (service_allocate_exec_fd_event_source(s, fd, &s->exec_fd_event_source) < 0) | |
3019 | safe_close(fd); | |
3020 | } | |
2787d83c | 3021 | } else if (streq(key, "watchdog-override-usec")) { |
d68c645b | 3022 | if (deserialize_usec(value, &s->watchdog_override_usec) < 0) |
2787d83c | 3023 | log_unit_debug(u, "Failed to parse watchdog_override_usec value: %s", value); |
d68c645b | 3024 | else |
2787d83c | 3025 | s->watchdog_override_enable = true; |
d68c645b | 3026 | |
aa8c4bbf LP |
3027 | } else if (streq(key, "watchdog-original-usec")) { |
3028 | if (deserialize_usec(value, &s->watchdog_original_usec) < 0) | |
3029 | log_unit_debug(u, "Failed to parse watchdog_original_usec value: %s", value); | |
3030 | ||
e266c068 MS |
3031 | } else if (STR_IN_SET(key, "main-command", "control-command")) { |
3032 | r = service_deserialize_exec_command(u, key, value); | |
3033 | if (r < 0) | |
3034 | log_unit_debug_errno(u, r, "Failed to parse serialized command \"%s\": %m", value); | |
7a0019d3 LP |
3035 | |
3036 | } else if (streq(key, "n-restarts")) { | |
3037 | r = safe_atou(value, &s->n_restarts); | |
3038 | if (r < 0) | |
3039 | log_unit_debug_errno(u, r, "Failed to parse serialized restart counter '%s': %m", value); | |
3040 | ||
3041 | } else if (streq(key, "flush-n-restarts")) { | |
3042 | r = parse_boolean(value); | |
3043 | if (r < 0) | |
3044 | log_unit_debug_errno(u, r, "Failed to parse serialized flush restart counter setting '%s': %m", value); | |
3045 | else | |
3046 | s->flush_n_restarts = r; | |
c17ec25e | 3047 | } else |
f2341e0a | 3048 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
3049 | |
3050 | return 0; | |
3051 | } | |
3052 | ||
44a6b1b6 | 3053 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
3054 | const UnitActiveState *table; |
3055 | ||
87f0e418 | 3056 | assert(u); |
5cb5a6ff | 3057 | |
e056b01d LP |
3058 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
3059 | ||
3060 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
3061 | } |
3062 | ||
10a94420 LP |
3063 | static const char *service_sub_state_to_string(Unit *u) { |
3064 | assert(u); | |
3065 | ||
3066 | return service_state_to_string(SERVICE(u)->state); | |
3067 | } | |
3068 | ||
f2f725e5 | 3069 | static bool service_may_gc(Unit *u) { |
701cc384 LP |
3070 | Service *s = SERVICE(u); |
3071 | ||
3072 | assert(s); | |
3073 | ||
e98b2fbb | 3074 | /* Never clean up services that still have a process around, even if the service is formally dead. Note that |
f2f725e5 | 3075 | * unit_may_gc() already checked our cgroup for us, we just check our two additional PIDs, too, in case they |
e98b2fbb LP |
3076 | * have moved outside of the cgroup. */ |
3077 | ||
3078 | if (main_pid_good(s) > 0 || | |
6d55002a | 3079 | control_pid_good(s) > 0) |
f2f725e5 | 3080 | return false; |
6d55002a | 3081 | |
f2f725e5 | 3082 | return true; |
6d55002a LP |
3083 | } |
3084 | ||
3a111838 MS |
3085 | static int service_retry_pid_file(Service *s) { |
3086 | int r; | |
3087 | ||
3088 | assert(s->pid_file); | |
3742095b | 3089 | assert(IN_SET(s->state, SERVICE_START, SERVICE_START_POST)); |
3a111838 MS |
3090 | |
3091 | r = service_load_pid_file(s, false); | |
3092 | if (r < 0) | |
3093 | return r; | |
3094 | ||
3095 | service_unwatch_pid_file(s); | |
3096 | ||
f42806df | 3097 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
3098 | return 0; |
3099 | } | |
3100 | ||
3101 | static int service_watch_pid_file(Service *s) { | |
3102 | int r; | |
3103 | ||
f2341e0a | 3104 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 3105 | |
5686391b | 3106 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_inotify_io); |
3a111838 MS |
3107 | if (r < 0) |
3108 | goto fail; | |
3109 | ||
3110 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 3111 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
3112 | service_retry_pid_file(s); |
3113 | ||
3114 | return 0; | |
3115 | fail: | |
f2341e0a | 3116 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
3117 | service_unwatch_pid_file(s); |
3118 | return r; | |
3119 | } | |
3120 | ||
3121 | static int service_demand_pid_file(Service *s) { | |
3122 | PathSpec *ps; | |
3123 | ||
3124 | assert(s->pid_file); | |
3125 | assert(!s->pid_file_pathspec); | |
3126 | ||
3127 | ps = new0(PathSpec, 1); | |
3128 | if (!ps) | |
3129 | return -ENOMEM; | |
3130 | ||
718db961 | 3131 | ps->unit = UNIT(s); |
3a111838 MS |
3132 | ps->path = strdup(s->pid_file); |
3133 | if (!ps->path) { | |
3134 | free(ps); | |
3135 | return -ENOMEM; | |
3136 | } | |
3137 | ||
858d36c1 | 3138 | path_simplify(ps->path, false); |
3a111838 MS |
3139 | |
3140 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
3141 | * keep their PID file open all the time. */ | |
3142 | ps->type = PATH_MODIFIED; | |
3143 | ps->inotify_fd = -1; | |
3144 | ||
3145 | s->pid_file_pathspec = ps; | |
3146 | ||
3147 | return service_watch_pid_file(s); | |
3148 | } | |
3149 | ||
5686391b | 3150 | static int service_dispatch_inotify_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
3151 | PathSpec *p = userdata; |
3152 | Service *s; | |
3153 | ||
3154 | assert(p); | |
3155 | ||
3156 | s = SERVICE(p->unit); | |
3a111838 MS |
3157 | |
3158 | assert(s); | |
3159 | assert(fd >= 0); | |
3742095b | 3160 | assert(IN_SET(s->state, SERVICE_START, SERVICE_START_POST)); |
3a111838 | 3161 | assert(s->pid_file_pathspec); |
57020a3a | 3162 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 3163 | |
f2341e0a | 3164 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 3165 | |
e14c2802 | 3166 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
3167 | goto fail; |
3168 | ||
3169 | if (service_retry_pid_file(s) == 0) | |
718db961 | 3170 | return 0; |
3a111838 MS |
3171 | |
3172 | if (service_watch_pid_file(s) < 0) | |
3173 | goto fail; | |
3174 | ||
718db961 LP |
3175 | return 0; |
3176 | ||
3a111838 MS |
3177 | fail: |
3178 | service_unwatch_pid_file(s); | |
f42806df | 3179 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 3180 | return 0; |
3a111838 MS |
3181 | } |
3182 | ||
5686391b LP |
3183 | static int service_dispatch_exec_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
3184 | Service *s = SERVICE(userdata); | |
3185 | ||
3186 | assert(s); | |
3187 | ||
3188 | log_unit_debug(UNIT(s), "got exec-fd event"); | |
3189 | ||
3190 | /* If Type=exec is set, we'll consider a service started successfully the instant we invoked execve() | |
3191 | * successfully for it. We implement this through a pipe() towards the child, which the kernel automatically | |
3192 | * closes for us due to O_CLOEXEC on execve() in the child, which then triggers EOF on the pipe in the | |
3193 | * parent. We need to be careful however, as there are other reasons that we might cause the child's side of | |
3194 | * the pipe to be closed (for example, a simple exit()). To deal with that we'll ignore EOFs on the pipe unless | |
3195 | * the child signalled us first that it is about to call the execve(). It does so by sending us a simple | |
3196 | * non-zero byte via the pipe. We also provide the child with a way to inform us in case execve() failed: if it | |
3197 | * sends a zero byte we'll ignore POLLHUP on the fd again. */ | |
3198 | ||
3199 | for (;;) { | |
3200 | uint8_t x; | |
3201 | ssize_t n; | |
3202 | ||
3203 | n = read(fd, &x, sizeof(x)); | |
3204 | if (n < 0) { | |
3205 | if (errno == EAGAIN) /* O_NONBLOCK in effect → everything queued has now been processed. */ | |
3206 | return 0; | |
3207 | ||
3208 | return log_unit_error_errno(UNIT(s), errno, "Failed to read from exec_fd: %m"); | |
3209 | } | |
3210 | if (n == 0) { /* EOF → the event we are waiting for */ | |
3211 | ||
3212 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
3213 | ||
3214 | if (s->exec_fd_hot) { /* Did the child tell us to expect EOF now? */ | |
3215 | log_unit_debug(UNIT(s), "Got EOF on exec-fd"); | |
3216 | ||
3217 | s->exec_fd_hot = false; | |
3218 | ||
3219 | /* Nice! This is what we have been waiting for. Transition to next state. */ | |
3220 | if (s->type == SERVICE_EXEC && s->state == SERVICE_START) | |
3221 | service_enter_start_post(s); | |
3222 | } else | |
3223 | log_unit_debug(UNIT(s), "Got EOF on exec-fd while it was disabled, ignoring."); | |
3224 | ||
3225 | return 0; | |
3226 | } | |
3227 | ||
3228 | /* A byte was read → this turns on/off the exec fd logic */ | |
3229 | assert(n == sizeof(x)); | |
3230 | s->exec_fd_hot = x; | |
3231 | } | |
3232 | ||
3233 | return 0; | |
3234 | } | |
3235 | ||
a911bb9a LP |
3236 | static void service_notify_cgroup_empty_event(Unit *u) { |
3237 | Service *s = SERVICE(u); | |
3238 | ||
3239 | assert(u); | |
3240 | ||
a5b5aece | 3241 | log_unit_debug(u, "Control group is empty."); |
a911bb9a LP |
3242 | |
3243 | switch (s->state) { | |
3244 | ||
3245 | /* Waiting for SIGCHLD is usually more interesting, | |
3246 | * because it includes return codes/signals. Which is | |
3247 | * why we ignore the cgroup events for most cases, | |
3248 | * except when we don't know pid which to expect the | |
3249 | * SIGCHLD for. */ | |
3250 | ||
3251 | case SERVICE_START: | |
3c751b1b LP |
3252 | if (s->type == SERVICE_NOTIFY && |
3253 | main_pid_good(s) == 0 && | |
3254 | control_pid_good(s) == 0) { | |
3d474ef7 | 3255 | /* No chance of getting a ready notification anymore */ |
c3fda31d | 3256 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
71e529fc JW |
3257 | break; |
3258 | } | |
3259 | ||
4831981d | 3260 | _fallthrough_; |
71e529fc | 3261 | case SERVICE_START_POST: |
3c751b1b LP |
3262 | if (s->pid_file_pathspec && |
3263 | main_pid_good(s) == 0 && | |
3264 | control_pid_good(s) == 0) { | |
3265 | ||
3d474ef7 | 3266 | /* Give up hoping for the daemon to write its PID file */ |
f2341e0a | 3267 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 3268 | |
a911bb9a LP |
3269 | service_unwatch_pid_file(s); |
3270 | if (s->state == SERVICE_START) | |
c3fda31d | 3271 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a | 3272 | else |
c35755fb | 3273 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a LP |
3274 | } |
3275 | break; | |
3276 | ||
3277 | case SERVICE_RUNNING: | |
3278 | /* service_enter_running() will figure out what to do */ | |
3279 | service_enter_running(s, SERVICE_SUCCESS); | |
3280 | break; | |
3281 | ||
c87700a1 | 3282 | case SERVICE_STOP_WATCHDOG: |
a911bb9a LP |
3283 | case SERVICE_STOP_SIGTERM: |
3284 | case SERVICE_STOP_SIGKILL: | |
3285 | ||
b13ddbbc | 3286 | if (main_pid_good(s) <= 0 && control_pid_good(s) <= 0) |
a911bb9a LP |
3287 | service_enter_stop_post(s, SERVICE_SUCCESS); |
3288 | ||
3289 | break; | |
3290 | ||
3291 | case SERVICE_STOP_POST: | |
3292 | case SERVICE_FINAL_SIGTERM: | |
3293 | case SERVICE_FINAL_SIGKILL: | |
b13ddbbc | 3294 | if (main_pid_good(s) <= 0 && control_pid_good(s) <= 0) |
a911bb9a LP |
3295 | service_enter_dead(s, SERVICE_SUCCESS, true); |
3296 | ||
3297 | break; | |
3298 | ||
3299 | default: | |
3300 | ; | |
3301 | } | |
3302 | } | |
3303 | ||
afcfaa69 LP |
3304 | static void service_notify_cgroup_oom_event(Unit *u) { |
3305 | Service *s = SERVICE(u); | |
3306 | ||
3307 | log_unit_debug(u, "Process of control group was killed by the OOM killer."); | |
3308 | ||
3309 | if (s->oom_policy == OOM_CONTINUE) | |
3310 | return; | |
3311 | ||
3312 | switch (s->state) { | |
3313 | ||
31cd5f63 | 3314 | case SERVICE_CONDITION: |
afcfaa69 LP |
3315 | case SERVICE_START_PRE: |
3316 | case SERVICE_START: | |
3317 | case SERVICE_START_POST: | |
3318 | case SERVICE_STOP: | |
3319 | if (s->oom_policy == OOM_STOP) | |
3320 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_OOM_KILL); | |
3321 | else if (s->oom_policy == OOM_KILL) | |
3322 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3323 | ||
3324 | break; | |
3325 | ||
3326 | case SERVICE_EXITED: | |
3327 | case SERVICE_RUNNING: | |
3328 | if (s->oom_policy == OOM_STOP) | |
3329 | service_enter_stop(s, SERVICE_FAILURE_OOM_KILL); | |
3330 | else if (s->oom_policy == OOM_KILL) | |
3331 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3332 | ||
3333 | break; | |
3334 | ||
3335 | case SERVICE_STOP_WATCHDOG: | |
3336 | case SERVICE_STOP_SIGTERM: | |
3337 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3338 | break; | |
3339 | ||
3340 | case SERVICE_STOP_SIGKILL: | |
3341 | case SERVICE_FINAL_SIGKILL: | |
3342 | if (s->result == SERVICE_SUCCESS) | |
3343 | s->result = SERVICE_FAILURE_OOM_KILL; | |
3344 | break; | |
3345 | ||
3346 | case SERVICE_STOP_POST: | |
3347 | case SERVICE_FINAL_SIGTERM: | |
3348 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3349 | break; | |
3350 | ||
3351 | default: | |
3352 | ; | |
3353 | } | |
3354 | } | |
3355 | ||
87f0e418 | 3356 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
5cdabc8d | 3357 | bool notify_dbus = true; |
87f0e418 | 3358 | Service *s = SERVICE(u); |
f42806df | 3359 | ServiceResult f; |
e5123725 | 3360 | ExitClean clean_mode; |
5cb5a6ff LP |
3361 | |
3362 | assert(s); | |
034c6ed7 LP |
3363 | assert(pid >= 0); |
3364 | ||
e5123725 AZ |
3365 | /* Oneshot services and non-SERVICE_EXEC_START commands should not be |
3366 | * considered daemons as they are typically not long running. */ | |
3367 | if (s->type == SERVICE_ONESHOT || (s->control_pid == pid && s->control_command_id != SERVICE_EXEC_START)) | |
3368 | clean_mode = EXIT_CLEAN_COMMAND; | |
3369 | else | |
3370 | clean_mode = EXIT_CLEAN_DAEMON; | |
3371 | ||
3372 | if (is_clean_exit(code, status, clean_mode, &s->success_status)) | |
f42806df LP |
3373 | f = SERVICE_SUCCESS; |
3374 | else if (code == CLD_EXITED) | |
3375 | f = SERVICE_FAILURE_EXIT_CODE; | |
3376 | else if (code == CLD_KILLED) | |
3377 | f = SERVICE_FAILURE_SIGNAL; | |
3378 | else if (code == CLD_DUMPED) | |
3379 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 3380 | else |
cfc4eb4c | 3381 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
3382 | |
3383 | if (s->main_pid == pid) { | |
db01f8b3 MS |
3384 | /* Forking services may occasionally move to a new PID. |
3385 | * As long as they update the PID file before exiting the old | |
3386 | * PID, they're fine. */ | |
db256aab | 3387 | if (service_load_pid_file(s, false) > 0) |
db01f8b3 | 3388 | return; |
034c6ed7 | 3389 | |
034c6ed7 | 3390 | s->main_pid = 0; |
6ea832a2 | 3391 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 3392 | |
867b3b7d | 3393 | if (s->main_command) { |
fbeefb45 LP |
3394 | /* If this is not a forking service than the |
3395 | * main process got started and hence we copy | |
3396 | * the exit status so that it is recorded both | |
3397 | * as main and as control process exit | |
3398 | * status */ | |
3399 | ||
867b3b7d | 3400 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 3401 | |
3ed0cd26 | 3402 | if (s->main_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3403 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
3404 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
3405 | ||
3406 | /* If this is a forked process, then we should | |
3407 | * ignore the return value if this was | |
3408 | * configured for the starter process */ | |
3409 | ||
3ed0cd26 | 3410 | if (s->exec_command[SERVICE_EXEC_START]->flags & EXEC_COMMAND_IGNORE_FAILURE) |
fbeefb45 | 3411 | f = SERVICE_SUCCESS; |
034c6ed7 LP |
3412 | } |
3413 | ||
91bbd9b7 | 3414 | unit_log_process_exit( |
5cc2cd1c | 3415 | u, |
91bbd9b7 LP |
3416 | "Main process", |
3417 | service_exec_command_to_string(SERVICE_EXEC_START), | |
5cc2cd1c | 3418 | f == SERVICE_SUCCESS, |
91bbd9b7 | 3419 | code, status); |
f42806df | 3420 | |
a0fef983 | 3421 | if (s->result == SERVICE_SUCCESS) |
f42806df | 3422 | s->result = f; |
034c6ed7 | 3423 | |
867b3b7d LP |
3424 | if (s->main_command && |
3425 | s->main_command->command_next && | |
b58aeb70 | 3426 | s->type == SERVICE_ONESHOT && |
f42806df | 3427 | f == SERVICE_SUCCESS) { |
034c6ed7 | 3428 | |
34e9ba66 LP |
3429 | /* There is another command to * |
3430 | * execute, so let's do that. */ | |
034c6ed7 | 3431 | |
f2341e0a | 3432 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 3433 | service_run_next_main(s); |
034c6ed7 | 3434 | |
34e9ba66 LP |
3435 | } else { |
3436 | ||
3437 | /* The service exited, so the service is officially | |
3438 | * gone. */ | |
867b3b7d | 3439 | s->main_command = NULL; |
34e9ba66 LP |
3440 | |
3441 | switch (s->state) { | |
3442 | ||
3443 | case SERVICE_START_POST: | |
3444 | case SERVICE_RELOAD: | |
3445 | case SERVICE_STOP: | |
3446 | /* Need to wait until the operation is | |
3447 | * done */ | |
c4653a4d | 3448 | break; |
7d55e835 | 3449 | |
34e9ba66 LP |
3450 | case SERVICE_START: |
3451 | if (s->type == SERVICE_ONESHOT) { | |
3452 | /* This was our main goal, so let's go on */ | |
f42806df | 3453 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
3454 | service_enter_start_post(s); |
3455 | else | |
c3fda31d | 3456 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
34e9ba66 | 3457 | break; |
3d474ef7 JW |
3458 | } else if (s->type == SERVICE_NOTIFY) { |
3459 | /* Only enter running through a notification, so that the | |
3460 | * SERVICE_START state signifies that no ready notification | |
3461 | * has been received */ | |
3462 | if (f != SERVICE_SUCCESS) | |
c3fda31d | 3463 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
df66b93f JW |
3464 | else if (!s->remain_after_exit || s->notify_access == NOTIFY_MAIN) |
3465 | /* The service has never been and will never be active */ | |
c3fda31d | 3466 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3d474ef7 | 3467 | break; |
34e9ba66 | 3468 | } |
034c6ed7 | 3469 | |
4831981d | 3470 | _fallthrough_; |
34e9ba66 | 3471 | case SERVICE_RUNNING: |
f42806df | 3472 | service_enter_running(s, f); |
34e9ba66 | 3473 | break; |
034c6ed7 | 3474 | |
c87700a1 | 3475 | case SERVICE_STOP_WATCHDOG: |
34e9ba66 LP |
3476 | case SERVICE_STOP_SIGTERM: |
3477 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 3478 | |
b13ddbbc | 3479 | if (control_pid_good(s) <= 0) |
f42806df | 3480 | service_enter_stop_post(s, f); |
5cb5a6ff | 3481 | |
34e9ba66 LP |
3482 | /* If there is still a control process, wait for that first */ |
3483 | break; | |
3484 | ||
bf108e55 LP |
3485 | case SERVICE_STOP_POST: |
3486 | case SERVICE_FINAL_SIGTERM: | |
3487 | case SERVICE_FINAL_SIGKILL: | |
3488 | ||
b13ddbbc | 3489 | if (control_pid_good(s) <= 0) |
bf108e55 LP |
3490 | service_enter_dead(s, f, true); |
3491 | break; | |
3492 | ||
34e9ba66 LP |
3493 | default: |
3494 | assert_not_reached("Uh, main process died at wrong time."); | |
3495 | } | |
034c6ed7 | 3496 | } |
5cb5a6ff | 3497 | |
034c6ed7 | 3498 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
3499 | s->control_pid = 0; |
3500 | ||
31cd5f63 AZ |
3501 | /* ExecCondition= calls that exit with (0, 254] should invoke skip-like behavior instead of failing */ |
3502 | if (f == SERVICE_FAILURE_EXIT_CODE && s->state == SERVICE_CONDITION && status < 255) | |
3503 | f = SERVICE_SKIP_CONDITION; | |
3504 | ||
b708e7ce | 3505 | if (s->control_command) { |
8bb2d17d | 3506 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 3507 | |
3ed0cd26 | 3508 | if (s->control_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3509 | f = SERVICE_SUCCESS; |
b708e7ce LP |
3510 | } |
3511 | ||
91bbd9b7 | 3512 | unit_log_process_exit( |
5cc2cd1c | 3513 | u, |
91bbd9b7 LP |
3514 | "Control process", |
3515 | service_exec_command_to_string(s->control_command_id), | |
5cc2cd1c | 3516 | f == SERVICE_SUCCESS, |
91bbd9b7 | 3517 | code, status); |
f42806df | 3518 | |
d611cfa7 | 3519 | if (s->state != SERVICE_RELOAD && s->result == SERVICE_SUCCESS) |
f42806df | 3520 | s->result = f; |
034c6ed7 | 3521 | |
34e9ba66 LP |
3522 | if (s->control_command && |
3523 | s->control_command->command_next && | |
f42806df | 3524 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3525 | |
3526 | /* There is another command to * | |
3527 | * execute, so let's do that. */ | |
3528 | ||
f2341e0a | 3529 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 3530 | service_run_next_control(s); |
034c6ed7 | 3531 | |
80876c20 | 3532 | } else { |
034c6ed7 LP |
3533 | /* No further commands for this step, so let's |
3534 | * figure out what to do next */ | |
3535 | ||
a16e1123 LP |
3536 | s->control_command = NULL; |
3537 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3538 | ||
f2341e0a | 3539 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 3540 | |
034c6ed7 LP |
3541 | switch (s->state) { |
3542 | ||
31cd5f63 AZ |
3543 | case SERVICE_CONDITION: |
3544 | if (f == SERVICE_SUCCESS) | |
3545 | service_enter_start_pre(s); | |
3546 | else | |
3547 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
3548 | break; | |
3549 | ||
034c6ed7 | 3550 | case SERVICE_START_PRE: |
f42806df | 3551 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3552 | service_enter_start(s); |
3553 | else | |
c3fda31d | 3554 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3555 | break; |
3556 | ||
3557 | case SERVICE_START: | |
bfba3256 LP |
3558 | if (s->type != SERVICE_FORKING) |
3559 | /* Maybe spurious event due to a reload that changed the type? */ | |
3560 | break; | |
034c6ed7 | 3561 | |
f42806df | 3562 | if (f != SERVICE_SUCCESS) { |
c3fda31d | 3563 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3a111838 MS |
3564 | break; |
3565 | } | |
034c6ed7 | 3566 | |
3a111838 | 3567 | if (s->pid_file) { |
f42806df LP |
3568 | bool has_start_post; |
3569 | int r; | |
3570 | ||
3a111838 MS |
3571 | /* Let's try to load the pid file here if we can. |
3572 | * The PID file might actually be created by a START_POST | |
3573 | * script. In that case don't worry if the loading fails. */ | |
f42806df | 3574 | |
5d904a6a | 3575 | has_start_post = s->exec_command[SERVICE_EXEC_START_POST]; |
f42806df | 3576 | r = service_load_pid_file(s, !has_start_post); |
3a111838 MS |
3577 | if (!has_start_post && r < 0) { |
3578 | r = service_demand_pid_file(s); | |
b13ddbbc | 3579 | if (r < 0 || cgroup_good(s) == 0) |
c3fda31d | 3580 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3a111838 MS |
3581 | break; |
3582 | } | |
034c6ed7 | 3583 | } else |
783e05d6 | 3584 | service_search_main_pid(s); |
034c6ed7 | 3585 | |
3a111838 | 3586 | service_enter_start_post(s); |
034c6ed7 LP |
3587 | break; |
3588 | ||
3589 | case SERVICE_START_POST: | |
f42806df | 3590 | if (f != SERVICE_SUCCESS) { |
ce359e98 | 3591 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
2096e009 | 3592 | break; |
034c6ed7 LP |
3593 | } |
3594 | ||
2096e009 | 3595 | if (s->pid_file) { |
f42806df LP |
3596 | int r; |
3597 | ||
3598 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3599 | if (r < 0) { |
3600 | r = service_demand_pid_file(s); | |
b13ddbbc | 3601 | if (r < 0 || cgroup_good(s) == 0) |
c35755fb | 3602 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
2096e009 MS |
3603 | break; |
3604 | } | |
3605 | } else | |
783e05d6 | 3606 | service_search_main_pid(s); |
2096e009 | 3607 | |
f42806df | 3608 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3609 | break; |
034c6ed7 LP |
3610 | |
3611 | case SERVICE_RELOAD: | |
7236ce6e ZJS |
3612 | if (f == SERVICE_SUCCESS) |
3613 | if (service_load_pid_file(s, true) < 0) | |
3614 | service_search_main_pid(s); | |
3185a36b | 3615 | |
f42806df LP |
3616 | s->reload_result = f; |
3617 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3618 | break; |
3619 | ||
3620 | case SERVICE_STOP: | |
f42806df | 3621 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3622 | break; |
3623 | ||
c87700a1 | 3624 | case SERVICE_STOP_WATCHDOG: |
034c6ed7 LP |
3625 | case SERVICE_STOP_SIGTERM: |
3626 | case SERVICE_STOP_SIGKILL: | |
3627 | if (main_pid_good(s) <= 0) | |
f42806df | 3628 | service_enter_stop_post(s, f); |
034c6ed7 | 3629 | |
846a07b5 | 3630 | /* If there is still a service process around, wait until |
034c6ed7 LP |
3631 | * that one quit, too */ |
3632 | break; | |
3633 | ||
3634 | case SERVICE_STOP_POST: | |
3635 | case SERVICE_FINAL_SIGTERM: | |
3636 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
3637 | if (main_pid_good(s) <= 0) |
3638 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
3639 | break; |
3640 | ||
4c2f5842 LP |
3641 | case SERVICE_CLEANING: |
3642 | ||
3643 | if (s->clean_result == SERVICE_SUCCESS) | |
3644 | s->clean_result = f; | |
3645 | ||
3646 | service_enter_dead(s, SERVICE_SUCCESS, false); | |
3647 | break; | |
3648 | ||
034c6ed7 LP |
3649 | default: |
3650 | assert_not_reached("Uh, control process died at wrong time."); | |
3651 | } | |
3652 | } | |
5cdabc8d LP |
3653 | } else /* Neither control nor main PID? If so, don't notify about anything */ |
3654 | notify_dbus = false; | |
c4e2ceae LP |
3655 | |
3656 | /* Notify clients about changed exit status */ | |
5cdabc8d LP |
3657 | if (notify_dbus) |
3658 | unit_add_to_dbus_queue(u); | |
a911bb9a | 3659 | |
846a07b5 FB |
3660 | /* We watch the main/control process otherwise we can't retrieve the unit they |
3661 | * belong to with cgroupv1. But if they are not our direct child, we won't get a | |
3662 | * SIGCHLD for them. Therefore we need to look for others to watch so we can | |
3663 | * detect when the cgroup becomes empty. Note that the control process is always | |
3664 | * our child so it's pointless to watch all other processes. */ | |
3665 | if (!control_pid_good(s)) | |
3666 | if (!s->main_pid_known || s->main_pid_alien) | |
3667 | (void) unit_enqueue_rewatch_pids(u); | |
034c6ed7 LP |
3668 | } |
3669 | ||
718db961 LP |
3670 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
3671 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
3672 | |
3673 | assert(s); | |
718db961 | 3674 | assert(source == s->timer_event_source); |
034c6ed7 LP |
3675 | |
3676 | switch (s->state) { | |
3677 | ||
31cd5f63 | 3678 | case SERVICE_CONDITION: |
034c6ed7 LP |
3679 | case SERVICE_START_PRE: |
3680 | case SERVICE_START: | |
31cd5f63 | 3681 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", service_state_to_string(s->state)); |
c3fda31d | 3682 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
3683 | break; |
3684 | ||
034c6ed7 | 3685 | case SERVICE_START_POST: |
f2341e0a | 3686 | log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping."); |
ce359e98 | 3687 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3688 | break; |
3689 | ||
36c16a7c LP |
3690 | case SERVICE_RUNNING: |
3691 | log_unit_warning(UNIT(s), "Service reached runtime time limit. Stopping."); | |
3692 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); | |
3693 | break; | |
3694 | ||
e2f3b44c | 3695 | case SERVICE_RELOAD: |
089b64d5 | 3696 | log_unit_warning(UNIT(s), "Reload operation timed out. Killing reload process."); |
e9a4f676 | 3697 | service_kill_control_process(s); |
f42806df LP |
3698 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3699 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3700 | break; |
3701 | ||
034c6ed7 | 3702 | case SERVICE_STOP: |
f2341e0a | 3703 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
f42806df | 3704 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3705 | break; |
3706 | ||
c87700a1 AZ |
3707 | case SERVICE_STOP_WATCHDOG: |
3708 | log_unit_warning(UNIT(s), "State 'stop-watchdog' timed out. Terminating."); | |
2ab2ab7b | 3709 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
db2cb23b UTL |
3710 | break; |
3711 | ||
034c6ed7 | 3712 | case SERVICE_STOP_SIGTERM: |
4819ff03 | 3713 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3714 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 3715 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3716 | } else { |
f2341e0a | 3717 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 3718 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3719 | } |
3720 | ||
034c6ed7 LP |
3721 | break; |
3722 | ||
3723 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3724 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3725 | * Must be something we cannot kill, so let's just be |
3726 | * weirded out and continue */ | |
3727 | ||
f2341e0a | 3728 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 3729 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3730 | break; |
3731 | ||
3732 | case SERVICE_STOP_POST: | |
f2341e0a | 3733 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); |
f42806df | 3734 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3735 | break; |
3736 | ||
3737 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 3738 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3739 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing."); |
f42806df | 3740 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3741 | } else { |
f2341e0a | 3742 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); |
f42806df | 3743 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3744 | } |
3745 | ||
034c6ed7 LP |
3746 | break; |
3747 | ||
3748 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 3749 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 3750 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3751 | break; |
3752 | ||
3753 | case SERVICE_AUTO_RESTART: | |
5ce6e7f5 ZJS |
3754 | if (s->restart_usec > 0) { |
3755 | char buf_restart[FORMAT_TIMESPAN_MAX]; | |
3756 | log_unit_info(UNIT(s), | |
3757 | "Service RestartSec=%s expired, scheduling restart.", | |
3758 | format_timespan(buf_restart, sizeof buf_restart, s->restart_usec, USEC_PER_SEC)); | |
3759 | } else | |
3760 | log_unit_info(UNIT(s), | |
3761 | "Service has no hold-off time (RestartSec=0), scheduling restart."); | |
3762 | ||
034c6ed7 LP |
3763 | service_enter_restart(s); |
3764 | break; | |
3765 | ||
4c2f5842 LP |
3766 | case SERVICE_CLEANING: |
3767 | log_unit_warning(UNIT(s), "Cleaning timed out. killing."); | |
3768 | ||
3769 | if (s->clean_result == SERVICE_SUCCESS) | |
3770 | s->clean_result = SERVICE_FAILURE_TIMEOUT; | |
3771 | ||
3772 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, 0); | |
3773 | break; | |
3774 | ||
034c6ed7 LP |
3775 | default: |
3776 | assert_not_reached("Timeout at wrong time."); | |
3777 | } | |
718db961 LP |
3778 | |
3779 | return 0; | |
3780 | } | |
3781 | ||
3782 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
3783 | Service *s = SERVICE(userdata); | |
a7850c7d | 3784 | char t[FORMAT_TIMESPAN_MAX]; |
2787d83c | 3785 | usec_t watchdog_usec; |
718db961 LP |
3786 | |
3787 | assert(s); | |
3788 | assert(source == s->watchdog_event_source); | |
3789 | ||
2787d83c M |
3790 | watchdog_usec = service_get_watchdog_usec(s); |
3791 | ||
2a12e32e JK |
3792 | if (UNIT(s)->manager->service_watchdogs) { |
3793 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", | |
3794 | format_timespan(t, sizeof(t), watchdog_usec, 1)); | |
8bb2d17d | 3795 | |
c87700a1 | 3796 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_WATCHDOG); |
2a12e32e JK |
3797 | } else |
3798 | log_unit_warning(UNIT(s), "Watchdog disabled! Ignoring watchdog timeout (limit %s)!", | |
3799 | format_timespan(t, sizeof(t), watchdog_usec, 1)); | |
842129f5 | 3800 | |
718db961 | 3801 | return 0; |
5cb5a6ff LP |
3802 | } |
3803 | ||
e3285237 LP |
3804 | static bool service_notify_message_authorized(Service *s, pid_t pid, char **tags, FDSet *fds) { |
3805 | assert(s); | |
8c47c732 | 3806 | |
c952c6ec | 3807 | if (s->notify_access == NOTIFY_NONE) { |
e3285237 LP |
3808 | log_unit_warning(UNIT(s), "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
3809 | return false; | |
3810 | } | |
3811 | ||
3812 | if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { | |
336c6e46 | 3813 | if (s->main_pid != 0) |
e3285237 | 3814 | 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 | 3815 | else |
e3285237 LP |
3816 | 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); |
3817 | ||
3818 | return false; | |
3819 | } | |
3820 | ||
3821 | if (s->notify_access == NOTIFY_EXEC && pid != s->main_pid && pid != s->control_pid) { | |
6375bd20 | 3822 | if (s->main_pid != 0 && s->control_pid != 0) |
e3285237 | 3823 | 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 |
3824 | pid, s->main_pid, s->control_pid); |
3825 | else if (s->main_pid != 0) | |
e3285237 | 3826 | 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 | 3827 | else if (s->control_pid != 0) |
e3285237 | 3828 | 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 | 3829 | else |
e3285237 LP |
3830 | 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); |
3831 | ||
3832 | return false; | |
9711848f LP |
3833 | } |
3834 | ||
e3285237 LP |
3835 | return true; |
3836 | } | |
3837 | ||
99b43caf JK |
3838 | static void service_force_watchdog(Service *s) { |
3839 | if (!UNIT(s)->manager->service_watchdogs) | |
3840 | return; | |
3841 | ||
3842 | log_unit_error(UNIT(s), "Watchdog request (last status: %s)!", | |
3843 | s->status_text ? s->status_text : "<unset>"); | |
3844 | ||
3845 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_WATCHDOG); | |
3846 | } | |
3847 | ||
db256aab LP |
3848 | static void service_notify_message( |
3849 | Unit *u, | |
3850 | const struct ucred *ucred, | |
3851 | char **tags, | |
3852 | FDSet *fds) { | |
3853 | ||
e3285237 LP |
3854 | Service *s = SERVICE(u); |
3855 | bool notify_dbus = false; | |
3856 | const char *e; | |
cc2b7b11 | 3857 | char **i; |
db256aab | 3858 | int r; |
e3285237 LP |
3859 | |
3860 | assert(u); | |
db256aab | 3861 | assert(ucred); |
e3285237 | 3862 | |
db256aab | 3863 | if (!service_notify_message_authorized(SERVICE(u), ucred->pid, tags, fds)) |
e3285237 LP |
3864 | return; |
3865 | ||
f1d34068 | 3866 | if (DEBUG_LOGGING) { |
9711848f LP |
3867 | _cleanup_free_ char *cc = NULL; |
3868 | ||
3869 | cc = strv_join(tags, ", "); | |
db256aab | 3870 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", ucred->pid, isempty(cc) ? "n/a" : cc); |
9711848f | 3871 | } |
c952c6ec | 3872 | |
8c47c732 | 3873 | /* Interpret MAINPID= */ |
28849dba | 3874 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 3875 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
db256aab LP |
3876 | pid_t new_main_pid; |
3877 | ||
3878 | if (parse_pid(e, &new_main_pid) < 0) | |
3879 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message, ignoring: %s", e); | |
3880 | else if (!s->main_pid_known || new_main_pid != s->main_pid) { | |
3881 | ||
3882 | r = service_is_suitable_main_pid(s, new_main_pid, LOG_WARNING); | |
3883 | if (r == 0) { | |
5238e957 | 3884 | /* The new main PID is a bit suspicious, which is OK if the sender is privileged. */ |
db256aab LP |
3885 | |
3886 | if (ucred->uid == 0) { | |
3887 | 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); | |
3888 | r = 1; | |
3889 | } else | |
3890 | log_unit_debug(u, "New main PID "PID_FMT" does not belong to service, refusing.", new_main_pid); | |
3891 | } | |
3892 | if (r > 0) { | |
3893 | service_set_main_pid(s, new_main_pid); | |
cdc2af3e | 3894 | |
f75f613d | 3895 | r = unit_watch_pid(UNIT(s), new_main_pid, false); |
cdc2af3e LP |
3896 | if (r < 0) |
3897 | log_unit_warning_errno(UNIT(s), r, "Failed to watch new main PID "PID_FMT" for service: %m", new_main_pid); | |
3898 | ||
db256aab LP |
3899 | notify_dbus = true; |
3900 | } | |
8c47c732 LP |
3901 | } |
3902 | } | |
3903 | ||
cc2b7b11 LP |
3904 | /* Interpret READY=/STOPPING=/RELOADING=. Last one wins. */ |
3905 | STRV_FOREACH_BACKWARDS(i, tags) { | |
308d72dc | 3906 | |
cc2b7b11 LP |
3907 | if (streq(*i, "READY=1")) { |
3908 | s->notify_state = NOTIFY_READY; | |
308d72dc | 3909 | |
cc2b7b11 LP |
3910 | /* Type=notify services inform us about completed |
3911 | * initialization with READY=1 */ | |
3912 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
3913 | service_enter_start_post(s); | |
308d72dc | 3914 | |
cc2b7b11 LP |
3915 | /* Sending READY=1 while we are reloading informs us |
3916 | * that the reloading is complete */ | |
3917 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
3918 | service_enter_running(s, SERVICE_SUCCESS); | |
308d72dc | 3919 | |
cc2b7b11 LP |
3920 | notify_dbus = true; |
3921 | break; | |
308d72dc | 3922 | |
cc2b7b11 LP |
3923 | } else if (streq(*i, "RELOADING=1")) { |
3924 | s->notify_state = NOTIFY_RELOADING; | |
308d72dc | 3925 | |
cc2b7b11 LP |
3926 | if (s->state == SERVICE_RUNNING) |
3927 | service_enter_reload_by_notify(s); | |
308d72dc | 3928 | |
cc2b7b11 LP |
3929 | notify_dbus = true; |
3930 | break; | |
308d72dc | 3931 | |
cc2b7b11 LP |
3932 | } else if (streq(*i, "STOPPING=1")) { |
3933 | s->notify_state = NOTIFY_STOPPING; | |
308d72dc | 3934 | |
cc2b7b11 LP |
3935 | if (s->state == SERVICE_RUNNING) |
3936 | service_enter_stop_by_notify(s); | |
308d72dc | 3937 | |
cc2b7b11 LP |
3938 | notify_dbus = true; |
3939 | break; | |
3940 | } | |
8c47c732 LP |
3941 | } |
3942 | ||
3943 | /* Interpret STATUS= */ | |
28849dba | 3944 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 3945 | if (e) { |
28849dba | 3946 | _cleanup_free_ char *t = NULL; |
8c47c732 | 3947 | |
28849dba | 3948 | if (!isempty(e)) { |
3eac1bca LP |
3949 | /* Note that this size limit check is mostly paranoia: since the datagram size we are willing |
3950 | * to process is already limited to NOTIFY_BUFFER_MAX, this limit here should never be hit. */ | |
3951 | if (strlen(e) > STATUS_TEXT_MAX) | |
3952 | log_unit_warning(u, "Status message overly long (%zu > %u), ignoring.", strlen(e), STATUS_TEXT_MAX); | |
3953 | else if (!utf8_is_valid(e)) | |
3954 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean, ignoring."); | |
28849dba | 3955 | else { |
28849dba LP |
3956 | t = strdup(e); |
3957 | if (!t) | |
3958 | log_oom(); | |
3a2776bc | 3959 | } |
28849dba | 3960 | } |
8c47c732 | 3961 | |
30b5275a | 3962 | if (!streq_ptr(s->status_text, t)) { |
3b319885 | 3963 | free_and_replace(s->status_text, t); |
30b5275a | 3964 | notify_dbus = true; |
28849dba | 3965 | } |
8c47c732 | 3966 | } |
842129f5 | 3967 | |
4774e357 | 3968 | /* Interpret ERRNO= */ |
28849dba | 3969 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
3970 | if (e) { |
3971 | int status_errno; | |
3972 | ||
2fa40742 LP |
3973 | status_errno = parse_errno(e); |
3974 | if (status_errno < 0) | |
3975 | log_unit_warning_errno(u, status_errno, | |
5e1ee764 | 3976 | "Failed to parse ERRNO= field value '%s' in notification message: %m", e); |
2fa40742 LP |
3977 | else if (s->status_errno != status_errno) { |
3978 | s->status_errno = status_errno; | |
3979 | notify_dbus = true; | |
4774e357 MAA |
3980 | } |
3981 | } | |
3982 | ||
a327431b DB |
3983 | /* Interpret EXTEND_TIMEOUT= */ |
3984 | e = strv_find_startswith(tags, "EXTEND_TIMEOUT_USEC="); | |
3985 | if (e) { | |
3986 | usec_t extend_timeout_usec; | |
3987 | if (safe_atou64(e, &extend_timeout_usec) < 0) | |
3988 | log_unit_warning(u, "Failed to parse EXTEND_TIMEOUT_USEC=%s", e); | |
3989 | else | |
3990 | service_extend_timeout(s, extend_timeout_usec); | |
3991 | } | |
3992 | ||
6f285378 | 3993 | /* Interpret WATCHDOG= */ |
99b43caf JK |
3994 | e = strv_find_startswith(tags, "WATCHDOG="); |
3995 | if (e) { | |
3996 | if (streq(e, "1")) | |
3997 | service_reset_watchdog(s); | |
3998 | else if (streq(e, "trigger")) | |
3999 | service_force_watchdog(s); | |
4000 | else | |
4001 | log_unit_warning(u, "Passed WATCHDOG= field is invalid, ignoring."); | |
4002 | } | |
c4e2ceae | 4003 | |
c45d11cb LP |
4004 | e = strv_find_startswith(tags, "WATCHDOG_USEC="); |
4005 | if (e) { | |
4006 | usec_t watchdog_override_usec; | |
4007 | if (safe_atou64(e, &watchdog_override_usec) < 0) | |
4008 | log_unit_warning(u, "Failed to parse WATCHDOG_USEC=%s", e); | |
4009 | else | |
95d0d8ed | 4010 | service_override_watchdog_timeout(s, watchdog_override_usec); |
c45d11cb LP |
4011 | } |
4012 | ||
e78ee06d LP |
4013 | /* Process FD store messages. Either FDSTOREREMOVE=1 for removal, or FDSTORE=1 for addition. In both cases, |
4014 | * process FDNAME= for picking the file descriptor name to use. Note that FDNAME= is required when removing | |
4015 | * fds, but optional when pushing in new fds, for compatibility reasons. */ | |
4016 | if (strv_find(tags, "FDSTOREREMOVE=1")) { | |
4017 | const char *name; | |
4018 | ||
4019 | name = strv_find_startswith(tags, "FDNAME="); | |
4020 | if (!name || !fdname_is_valid(name)) | |
4021 | log_unit_warning(u, "FDSTOREREMOVE=1 requested, but no valid file descriptor name passed, ignoring."); | |
4022 | else | |
4023 | service_remove_fd_store(s, name); | |
4024 | ||
4025 | } else if (strv_find(tags, "FDSTORE=1")) { | |
8dd4c05b LP |
4026 | const char *name; |
4027 | ||
4028 | name = strv_find_startswith(tags, "FDNAME="); | |
4029 | if (name && !fdname_is_valid(name)) { | |
4030 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
4031 | name = NULL; | |
4032 | } | |
4033 | ||
e78ee06d | 4034 | (void) service_add_fd_store_set(s, fds, name); |
8dd4c05b | 4035 | } |
a354329f | 4036 | |
c4e2ceae | 4037 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
4038 | if (notify_dbus) |
4039 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
4040 | } |
4041 | ||
7a7821c8 | 4042 | static int service_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 4043 | Service *s = SERVICE(u); |
7a7821c8 | 4044 | uint64_t t; |
68db7a3b ZJS |
4045 | int r; |
4046 | ||
4047 | if (!s->timer_event_source) | |
4048 | return 0; | |
4049 | ||
7a7821c8 | 4050 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
4051 | if (r < 0) |
4052 | return r; | |
7a7821c8 LP |
4053 | if (t == USEC_INFINITY) |
4054 | return 0; | |
68db7a3b | 4055 | |
7a7821c8 | 4056 | *timeout = t; |
68db7a3b ZJS |
4057 | return 1; |
4058 | } | |
4059 | ||
05e343b7 LP |
4060 | static void service_bus_name_owner_change( |
4061 | Unit *u, | |
05e343b7 LP |
4062 | const char *old_owner, |
4063 | const char *new_owner) { | |
4064 | ||
4065 | Service *s = SERVICE(u); | |
718db961 | 4066 | int r; |
05e343b7 LP |
4067 | |
4068 | assert(s); | |
05e343b7 | 4069 | |
05e343b7 LP |
4070 | assert(old_owner || new_owner); |
4071 | ||
4072 | if (old_owner && new_owner) | |
a5a8776a | 4073 | log_unit_debug(u, "D-Bus name %s changed owner from %s to %s", s->bus_name, old_owner, new_owner); |
05e343b7 | 4074 | else if (old_owner) |
a5a8776a | 4075 | log_unit_debug(u, "D-Bus name %s no longer registered by %s", s->bus_name, old_owner); |
05e343b7 | 4076 | else |
a5a8776a | 4077 | log_unit_debug(u, "D-Bus name %s now registered by %s", s->bus_name, new_owner); |
05e343b7 LP |
4078 | |
4079 | s->bus_name_good = !!new_owner; | |
4080 | ||
d8ccf5fd DM |
4081 | /* Track the current owner, so we can reconstruct changes after a daemon reload */ |
4082 | r = free_and_strdup(&s->bus_name_owner, new_owner); | |
4083 | if (r < 0) { | |
4084 | log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner); | |
4085 | return; | |
4086 | } | |
4087 | ||
05e343b7 LP |
4088 | if (s->type == SERVICE_DBUS) { |
4089 | ||
4090 | /* service_enter_running() will figure out what to | |
4091 | * do */ | |
4092 | if (s->state == SERVICE_RUNNING) | |
f42806df | 4093 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
4094 | else if (s->state == SERVICE_START && new_owner) |
4095 | service_enter_start_post(s); | |
4096 | ||
4097 | } else if (new_owner && | |
4098 | s->main_pid <= 0 && | |
a6951a50 LP |
4099 | IN_SET(s->state, |
4100 | SERVICE_START, | |
4101 | SERVICE_START_POST, | |
4102 | SERVICE_RUNNING, | |
4103 | SERVICE_RELOAD)) { | |
05e343b7 | 4104 | |
4afd3348 | 4105 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
718db961 | 4106 | pid_t pid; |
05e343b7 | 4107 | |
718db961 | 4108 | /* Try to acquire PID from bus service */ |
05e343b7 | 4109 | |
a5a8776a | 4110 | r = sd_bus_get_name_creds(u->manager->api_bus, s->bus_name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
4111 | if (r >= 0) |
4112 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 | 4113 | if (r >= 0) { |
a5a8776a | 4114 | log_unit_debug(u, "D-Bus name %s is now owned by process " PID_FMT, s->bus_name, pid); |
05e343b7 | 4115 | |
718db961 | 4116 | service_set_main_pid(s, pid); |
f75f613d | 4117 | unit_watch_pid(UNIT(s), pid, false); |
718db961 | 4118 | } |
7400b9d2 | 4119 | } |
05e343b7 LP |
4120 | } |
4121 | ||
16115b0a | 4122 | int service_set_socket_fd(Service *s, int fd, Socket *sock, bool selinux_context_net) { |
79a98c60 LP |
4123 | _cleanup_free_ char *peer = NULL; |
4124 | int r; | |
57020a3a | 4125 | |
4f2d528d LP |
4126 | assert(s); |
4127 | assert(fd >= 0); | |
4128 | ||
7f2fbbff LP |
4129 | /* This is called by the socket code when instantiating a new service for a stream socket and the socket needs |
4130 | * to be configured. We take ownership of the passed fd on success. */ | |
4f2d528d | 4131 | |
1124fe6f | 4132 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
4133 | return -EINVAL; |
4134 | ||
4135 | if (s->socket_fd >= 0) | |
4136 | return -EBUSY; | |
4137 | ||
4138 | if (s->state != SERVICE_DEAD) | |
4139 | return -EAGAIN; | |
4140 | ||
366b7db4 | 4141 | if (getpeername_pretty(fd, true, &peer) >= 0) { |
79a98c60 LP |
4142 | |
4143 | if (UNIT(s)->description) { | |
4144 | _cleanup_free_ char *a; | |
4145 | ||
605405c6 | 4146 | a = strjoin(UNIT(s)->description, " (", peer, ")"); |
79a98c60 LP |
4147 | if (!a) |
4148 | return -ENOMEM; | |
4149 | ||
4150 | r = unit_set_description(UNIT(s), a); | |
4151 | } else | |
4152 | r = unit_set_description(UNIT(s), peer); | |
4153 | ||
4154 | if (r < 0) | |
4155 | return r; | |
4156 | } | |
4157 | ||
eef85c4a | 4158 | r = unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false, UNIT_DEPENDENCY_IMPLICIT); |
7f2fbbff LP |
4159 | if (r < 0) |
4160 | return r; | |
4161 | ||
4f2d528d | 4162 | s->socket_fd = fd; |
16115b0a | 4163 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 4164 | |
7f7d01ed | 4165 | unit_ref_set(&s->accept_socket, UNIT(s), UNIT(sock)); |
7f2fbbff | 4166 | return 0; |
4f2d528d LP |
4167 | } |
4168 | ||
fdf20a31 | 4169 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
4170 | Service *s = SERVICE(u); |
4171 | ||
4172 | assert(s); | |
4173 | ||
fdf20a31 | 4174 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
4175 | service_set_state(s, SERVICE_DEAD); |
4176 | ||
f42806df LP |
4177 | s->result = SERVICE_SUCCESS; |
4178 | s->reload_result = SERVICE_SUCCESS; | |
4c2f5842 | 4179 | s->clean_result = SERVICE_SUCCESS; |
7a0019d3 LP |
4180 | s->n_restarts = 0; |
4181 | s->flush_n_restarts = false; | |
5632e374 LP |
4182 | } |
4183 | ||
718db961 | 4184 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 4185 | Service *s = SERVICE(u); |
41efeaec | 4186 | |
a6951a50 LP |
4187 | assert(s); |
4188 | ||
814cc562 | 4189 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
4190 | } |
4191 | ||
291d565a LP |
4192 | static int service_main_pid(Unit *u) { |
4193 | Service *s = SERVICE(u); | |
4194 | ||
4195 | assert(s); | |
4196 | ||
4197 | return s->main_pid; | |
4198 | } | |
4199 | ||
4200 | static int service_control_pid(Unit *u) { | |
4201 | Service *s = SERVICE(u); | |
4202 | ||
4203 | assert(s); | |
4204 | ||
4205 | return s->control_pid; | |
4206 | } | |
4207 | ||
bb2c7685 LP |
4208 | static bool service_needs_console(Unit *u) { |
4209 | Service *s = SERVICE(u); | |
4210 | ||
4211 | assert(s); | |
4212 | ||
4213 | /* We provide our own implementation of this here, instead of relying of the generic implementation | |
4214 | * unit_needs_console() provides, since we want to return false if we are in SERVICE_EXITED state. */ | |
4215 | ||
4216 | if (!exec_context_may_touch_console(&s->exec_context)) | |
4217 | return false; | |
4218 | ||
4219 | return IN_SET(s->state, | |
31cd5f63 | 4220 | SERVICE_CONDITION, |
bb2c7685 LP |
4221 | SERVICE_START_PRE, |
4222 | SERVICE_START, | |
4223 | SERVICE_START_POST, | |
4224 | SERVICE_RUNNING, | |
4225 | SERVICE_RELOAD, | |
4226 | SERVICE_STOP, | |
c87700a1 | 4227 | SERVICE_STOP_WATCHDOG, |
bb2c7685 LP |
4228 | SERVICE_STOP_SIGTERM, |
4229 | SERVICE_STOP_SIGKILL, | |
4230 | SERVICE_STOP_POST, | |
4231 | SERVICE_FINAL_SIGTERM, | |
4232 | SERVICE_FINAL_SIGKILL); | |
4233 | } | |
4234 | ||
7af67e9a LP |
4235 | static int service_exit_status(Unit *u) { |
4236 | Service *s = SERVICE(u); | |
4237 | ||
4238 | assert(u); | |
4239 | ||
4240 | if (s->main_exec_status.pid <= 0 || | |
4241 | !dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) | |
4242 | return -ENODATA; | |
4243 | ||
4244 | if (s->main_exec_status.code != CLD_EXITED) | |
4245 | return -EBADE; | |
4246 | ||
4247 | return s->main_exec_status.status; | |
4248 | } | |
4249 | ||
4c2f5842 LP |
4250 | static int service_clean(Unit *u, ExecCleanMask mask) { |
4251 | _cleanup_strv_free_ char **l = NULL; | |
4252 | Service *s = SERVICE(u); | |
4c2f5842 LP |
4253 | int r; |
4254 | ||
4255 | assert(s); | |
4256 | assert(mask != 0); | |
4257 | ||
4258 | if (s->state != SERVICE_DEAD) | |
4259 | return -EBUSY; | |
4260 | ||
4261 | r = exec_context_get_clean_directories(&s->exec_context, u->manager->prefix, mask, &l); | |
4262 | if (r < 0) | |
4263 | return r; | |
4264 | ||
4265 | if (strv_isempty(l)) | |
4266 | return -EUNATCH; | |
4267 | ||
4268 | service_unwatch_control_pid(s); | |
4269 | s->clean_result = SERVICE_SUCCESS; | |
4270 | s->control_command = NULL; | |
4271 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
4272 | ||
12213aed | 4273 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->exec_context.timeout_clean_usec)); |
4c2f5842 LP |
4274 | if (r < 0) |
4275 | goto fail; | |
4276 | ||
810ef318 | 4277 | r = unit_fork_and_watch_rm_rf(u, l, &s->control_pid); |
4c2f5842 LP |
4278 | if (r < 0) |
4279 | goto fail; | |
4280 | ||
4c2f5842 LP |
4281 | service_set_state(s, SERVICE_CLEANING); |
4282 | ||
4283 | return 0; | |
4284 | ||
4285 | fail: | |
810ef318 | 4286 | log_unit_warning_errno(u, r, "Failed to initiate cleaning: %m"); |
4c2f5842 LP |
4287 | s->clean_result = SERVICE_FAILURE_RESOURCES; |
4288 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
4289 | return r; | |
4290 | } | |
4291 | ||
4292 | static int service_can_clean(Unit *u, ExecCleanMask *ret) { | |
4293 | Service *s = SERVICE(u); | |
4294 | ||
4295 | assert(s); | |
4296 | ||
4297 | return exec_context_get_clean_mask(&s->exec_context, ret); | |
4298 | } | |
4299 | ||
94f04347 | 4300 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
525ee6f4 LP |
4301 | [SERVICE_RESTART_NO] = "no", |
4302 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 4303 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 4304 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 4305 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 4306 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 4307 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
4308 | }; |
4309 | ||
4310 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
4311 | ||
4312 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 4313 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 4314 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 4315 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 4316 | [SERVICE_DBUS] = "dbus", |
f2b68789 | 4317 | [SERVICE_NOTIFY] = "notify", |
5686391b LP |
4318 | [SERVICE_IDLE] = "idle", |
4319 | [SERVICE_EXEC] = "exec", | |
94f04347 LP |
4320 | }; |
4321 | ||
4322 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
4323 | ||
e537352b | 4324 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
31cd5f63 | 4325 | [SERVICE_EXEC_CONDITION] = "ExecCondition", |
94f04347 LP |
4326 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
4327 | [SERVICE_EXEC_START] = "ExecStart", | |
4328 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
4329 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
4330 | [SERVICE_EXEC_STOP] = "ExecStop", | |
4331 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
4332 | }; | |
4333 | ||
4334 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
4335 | ||
b3d59367 | 4336 | static const char* const service_exec_ex_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
898fc00e | 4337 | [SERVICE_EXEC_CONDITION] = "ExecConditionEx", |
b3d59367 AZ |
4338 | [SERVICE_EXEC_START_PRE] = "ExecStartPreEx", |
4339 | [SERVICE_EXEC_START] = "ExecStartEx", | |
4340 | [SERVICE_EXEC_START_POST] = "ExecStartPostEx", | |
898fc00e AZ |
4341 | [SERVICE_EXEC_RELOAD] = "ExecReloadEx", |
4342 | [SERVICE_EXEC_STOP] = "ExecStopEx", | |
4343 | [SERVICE_EXEC_STOP_POST] = "ExecStopPostEx", | |
b3d59367 AZ |
4344 | }; |
4345 | ||
4346 | DEFINE_STRING_TABLE_LOOKUP(service_exec_ex_command, ServiceExecCommand); | |
4347 | ||
308d72dc LP |
4348 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
4349 | [NOTIFY_UNKNOWN] = "unknown", | |
4350 | [NOTIFY_READY] = "ready", | |
4351 | [NOTIFY_RELOADING] = "reloading", | |
4352 | [NOTIFY_STOPPING] = "stopping", | |
4353 | }; | |
4354 | ||
4355 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
4356 | ||
f42806df LP |
4357 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
4358 | [SERVICE_SUCCESS] = "success", | |
4359 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
c35755fb | 4360 | [SERVICE_FAILURE_PROTOCOL] = "protocol", |
f42806df LP |
4361 | [SERVICE_FAILURE_TIMEOUT] = "timeout", |
4362 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
4363 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 4364 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a | 4365 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
07299350 | 4366 | [SERVICE_FAILURE_START_LIMIT_HIT] = "start-limit-hit", |
afcfaa69 | 4367 | [SERVICE_FAILURE_OOM_KILL] = "oom-kill", |
31cd5f63 | 4368 | [SERVICE_SKIP_CONDITION] = "exec-condition", |
f42806df LP |
4369 | }; |
4370 | ||
4371 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
4372 | ||
87f0e418 | 4373 | const UnitVTable service_vtable = { |
7d17cfbc | 4374 | .object_size = sizeof(Service), |
718db961 LP |
4375 | .exec_context_offset = offsetof(Service, exec_context), |
4376 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
4377 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 4378 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
29206d46 | 4379 | .dynamic_creds_offset = offsetof(Service, dynamic_creds), |
3ef63c31 | 4380 | |
f975e971 LP |
4381 | .sections = |
4382 | "Unit\0" | |
4383 | "Service\0" | |
4384 | "Install\0", | |
4ad49000 | 4385 | .private_section = "Service", |
71645aca | 4386 | |
1d9cc876 LP |
4387 | .can_transient = true, |
4388 | .can_delegate = true, | |
4389 | ||
034c6ed7 LP |
4390 | .init = service_init, |
4391 | .done = service_done, | |
a16e1123 | 4392 | .load = service_load, |
a354329f | 4393 | .release_resources = service_release_resources, |
a16e1123 LP |
4394 | |
4395 | .coldplug = service_coldplug, | |
034c6ed7 | 4396 | |
5cb5a6ff LP |
4397 | .dump = service_dump, |
4398 | ||
4399 | .start = service_start, | |
4400 | .stop = service_stop, | |
4401 | .reload = service_reload, | |
4402 | ||
034c6ed7 LP |
4403 | .can_reload = service_can_reload, |
4404 | ||
8a0867d6 | 4405 | .kill = service_kill, |
4c2f5842 LP |
4406 | .clean = service_clean, |
4407 | .can_clean = service_can_clean, | |
8a0867d6 | 4408 | |
a16e1123 LP |
4409 | .serialize = service_serialize, |
4410 | .deserialize_item = service_deserialize_item, | |
4411 | ||
5cb5a6ff | 4412 | .active_state = service_active_state, |
10a94420 | 4413 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 4414 | |
deb4e708 MK |
4415 | .will_restart = service_will_restart, |
4416 | ||
f2f725e5 | 4417 | .may_gc = service_may_gc, |
701cc384 | 4418 | |
034c6ed7 | 4419 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 4420 | |
fdf20a31 | 4421 | .reset_failed = service_reset_failed, |
5632e374 | 4422 | |
4ad49000 | 4423 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
afcfaa69 | 4424 | .notify_cgroup_oom = service_notify_cgroup_oom_event, |
8c47c732 | 4425 | .notify_message = service_notify_message, |
8e274523 | 4426 | |
291d565a LP |
4427 | .main_pid = service_main_pid, |
4428 | .control_pid = service_control_pid, | |
4429 | ||
05e343b7 | 4430 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 4431 | |
718db961 | 4432 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
4433 | .bus_set_property = bus_service_set_property, |
4434 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 4435 | |
68db7a3b | 4436 | .get_timeout = service_get_timeout, |
bb2c7685 | 4437 | .needs_console = service_needs_console, |
7af67e9a | 4438 | .exit_status = service_exit_status, |
718db961 | 4439 | |
c6918296 MS |
4440 | .status_message_formats = { |
4441 | .starting_stopping = { | |
4442 | [0] = "Starting %s...", | |
4443 | [1] = "Stopping %s...", | |
4444 | }, | |
4445 | .finished_start_job = { | |
4446 | [JOB_DONE] = "Started %s.", | |
4447 | [JOB_FAILED] = "Failed to start %s.", | |
31cd5f63 | 4448 | [JOB_SKIPPED] = "Skipped %s.", |
c6918296 MS |
4449 | }, |
4450 | .finished_stop_job = { | |
4451 | [JOB_DONE] = "Stopped %s.", | |
4452 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 MS |
4453 | }, |
4454 | }, | |
5cb5a6ff | 4455 | }; |