]>
Commit | Line | Data |
---|---|---|
53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
a7334b09 | 2 | |
5cb5a6ff | 3 | #include <errno.h> |
ca78ad1d ZJS |
4 | #include <sys/stat.h> |
5 | #include <sys/types.h> | |
2c4104f0 | 6 | #include <unistd.h> |
5cb5a6ff | 7 | |
7a0019d3 LP |
8 | #include "sd-messages.h" |
9 | ||
b5efdb8a | 10 | #include "alloc-util.h" |
574634bc | 11 | #include "async.h" |
4f5dd394 LP |
12 | #include "bus-error.h" |
13 | #include "bus-kernel.h" | |
14 | #include "bus-util.h" | |
4139c1b2 | 15 | #include "dbus-service.h" |
6fcbec6f | 16 | #include "dbus-unit.h" |
f6a6225e | 17 | #include "def.h" |
4d1a6904 | 18 | #include "env-util.h" |
4f5dd394 LP |
19 | #include "escape.h" |
20 | #include "exit-status.h" | |
3ffd4af2 | 21 | #include "fd-util.h" |
a5c32cff | 22 | #include "fileio.h" |
f97b34a6 | 23 | #include "format-util.h" |
f4f15635 | 24 | #include "fs-util.h" |
4f5dd394 LP |
25 | #include "load-dropin.h" |
26 | #include "load-fragment.h" | |
27 | #include "log.h" | |
28 | #include "manager.h" | |
6bedfcbb | 29 | #include "parse-util.h" |
4f5dd394 | 30 | #include "path-util.h" |
0b452006 | 31 | #include "process-util.h" |
d68c645b | 32 | #include "serialize.h" |
3ffd4af2 | 33 | #include "service.h" |
24882e06 | 34 | #include "signal-util.h" |
4f5dd394 | 35 | #include "special.h" |
e266c068 | 36 | #include "stdio-util.h" |
8b43440b | 37 | #include "string-table.h" |
07630cea | 38 | #include "string-util.h" |
4f5dd394 LP |
39 | #include "strv.h" |
40 | #include "unit-name.h" | |
4f5dd394 LP |
41 | #include "unit.h" |
42 | #include "utf8.h" | |
43 | #include "util.h" | |
034c6ed7 | 44 | |
acbb0225 | 45 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 | 46 | [SERVICE_DEAD] = UNIT_INACTIVE, |
31cd5f63 | 47 | [SERVICE_CONDITION] = UNIT_ACTIVATING, |
87f0e418 LP |
48 | [SERVICE_START_PRE] = UNIT_ACTIVATING, |
49 | [SERVICE_START] = UNIT_ACTIVATING, | |
50 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
51 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 52 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 53 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 | 54 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
c87700a1 | 55 | [SERVICE_STOP_WATCHDOG] = UNIT_DEACTIVATING, |
87f0e418 LP |
56 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
57 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
58 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
59 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
60 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 61 | [SERVICE_FAILED] = UNIT_FAILED, |
4c2f5842 LP |
62 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, |
63 | [SERVICE_CLEANING] = UNIT_MAINTENANCE, | |
034c6ed7 | 64 | }; |
5cb5a6ff | 65 | |
e056b01d LP |
66 | /* For Type=idle we never want to delay any other jobs, hence we |
67 | * consider idle jobs active as soon as we start working on them */ | |
68 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
69 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
31cd5f63 | 70 | [SERVICE_CONDITION] = UNIT_ACTIVE, |
e056b01d LP |
71 | [SERVICE_START_PRE] = UNIT_ACTIVE, |
72 | [SERVICE_START] = UNIT_ACTIVE, | |
73 | [SERVICE_START_POST] = UNIT_ACTIVE, | |
74 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
75 | [SERVICE_EXITED] = UNIT_ACTIVE, | |
76 | [SERVICE_RELOAD] = UNIT_RELOADING, | |
77 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
c87700a1 | 78 | [SERVICE_STOP_WATCHDOG] = UNIT_DEACTIVATING, |
e056b01d LP |
79 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, |
80 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
81 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
82 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
83 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
84 | [SERVICE_FAILED] = UNIT_FAILED, | |
4c2f5842 LP |
85 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING, |
86 | [SERVICE_CLEANING] = UNIT_MAINTENANCE, | |
e056b01d LP |
87 | }; |
88 | ||
5686391b | 89 | static int service_dispatch_inotify_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
718db961 LP |
90 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); |
91 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); | |
5686391b | 92 | static int service_dispatch_exec_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
718db961 | 93 | |
842129f5 | 94 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
308d72dc | 95 | static void service_enter_reload_by_notify(Service *s); |
842129f5 | 96 | |
a16e1123 LP |
97 | static void service_init(Unit *u) { |
98 | Service *s = SERVICE(u); | |
99 | ||
100 | assert(u); | |
ac155bb8 | 101 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 102 | |
1f19a534 OS |
103 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
104 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
dc653bf4 JK |
105 | s->timeout_abort_usec = u->manager->default_timeout_abort_usec; |
106 | s->timeout_abort_set = u->manager->default_timeout_abort_set; | |
1f19a534 | 107 | s->restart_usec = u->manager->default_restart_usec; |
36c16a7c | 108 | s->runtime_max_usec = USEC_INFINITY; |
0b86feac | 109 | s->type = _SERVICE_TYPE_INVALID; |
a16e1123 | 110 | s->socket_fd = -1; |
a34ceba6 | 111 | s->stdin_fd = s->stdout_fd = s->stderr_fd = -1; |
3185a36b | 112 | s->guess_main_pid = true; |
a16e1123 | 113 | |
a16e1123 | 114 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
00f5ad93 LP |
115 | |
116 | s->exec_context.keyring_mode = MANAGER_IS_SYSTEM(u->manager) ? | |
117 | EXEC_KEYRING_PRIVATE : EXEC_KEYRING_INHERIT; | |
aa8c4bbf LP |
118 | |
119 | s->watchdog_original_usec = USEC_INFINITY; | |
afcfaa69 LP |
120 | |
121 | s->oom_policy = _OOM_POLICY_INVALID; | |
a16e1123 LP |
122 | } |
123 | ||
5e94833f LP |
124 | static void service_unwatch_control_pid(Service *s) { |
125 | assert(s); | |
126 | ||
127 | if (s->control_pid <= 0) | |
128 | return; | |
129 | ||
130 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
131 | s->control_pid = 0; | |
132 | } | |
133 | ||
134 | static void service_unwatch_main_pid(Service *s) { | |
135 | assert(s); | |
136 | ||
137 | if (s->main_pid <= 0) | |
138 | return; | |
139 | ||
140 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
141 | s->main_pid = 0; | |
142 | } | |
143 | ||
3e52541e MS |
144 | static void service_unwatch_pid_file(Service *s) { |
145 | if (!s->pid_file_pathspec) | |
146 | return; | |
147 | ||
f2341e0a | 148 | log_unit_debug(UNIT(s), "Stopping watch for PID file %s", s->pid_file_pathspec->path); |
718db961 | 149 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e | 150 | path_spec_done(s->pid_file_pathspec); |
a1e58e8e | 151 | s->pid_file_pathspec = mfree(s->pid_file_pathspec); |
3e52541e MS |
152 | } |
153 | ||
5925dd3c LP |
154 | static int service_set_main_pid(Service *s, pid_t pid) { |
155 | assert(s); | |
156 | ||
157 | if (pid <= 1) | |
158 | return -EINVAL; | |
159 | ||
df0ff127 | 160 | if (pid == getpid_cached()) |
5925dd3c LP |
161 | return -EINVAL; |
162 | ||
7400b9d2 LP |
163 | if (s->main_pid == pid && s->main_pid_known) |
164 | return 0; | |
165 | ||
166 | if (s->main_pid != pid) { | |
167 | service_unwatch_main_pid(s); | |
168 | exec_status_start(&s->main_exec_status, pid); | |
169 | } | |
41efeaec | 170 | |
6dfa5494 LP |
171 | s->main_pid = pid; |
172 | s->main_pid_known = true; | |
4d051546 | 173 | s->main_pid_alien = pid_is_my_child(pid) == 0; |
6dfa5494 | 174 | |
4d051546 | 175 | if (s->main_pid_alien) |
f2341e0a | 176 | log_unit_warning(UNIT(s), "Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.", pid); |
5925dd3c LP |
177 | |
178 | return 0; | |
179 | } | |
180 | ||
3e7a1f50 | 181 | void service_close_socket_fd(Service *s) { |
4f2d528d LP |
182 | assert(s); |
183 | ||
5cc3985e | 184 | /* Undo the effect of service_set_socket_fd(). */ |
4f2d528d | 185 | |
5cc3985e | 186 | s->socket_fd = asynchronous_close(s->socket_fd); |
6cf6bbc2 | 187 | |
5cc3985e LP |
188 | if (UNIT_ISSET(s->accept_socket)) { |
189 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); | |
190 | unit_ref_unset(&s->accept_socket); | |
191 | } | |
6cf6bbc2 LP |
192 | } |
193 | ||
a6927d7f MO |
194 | static void service_stop_watchdog(Service *s) { |
195 | assert(s); | |
196 | ||
718db961 | 197 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
842129f5 | 198 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
199 | } |
200 | ||
842129f5 | 201 | static void service_start_watchdog(Service *s) { |
2787d83c | 202 | usec_t watchdog_usec; |
9fb1cdb4 | 203 | int r; |
bb242b7b MO |
204 | |
205 | assert(s); | |
206 | ||
2787d83c | 207 | watchdog_usec = service_get_watchdog_usec(s); |
9fb1cdb4 LP |
208 | if (IN_SET(watchdog_usec, 0, USEC_INFINITY)) { |
209 | service_stop_watchdog(s); | |
bb242b7b | 210 | return; |
9fb1cdb4 | 211 | } |
bb242b7b | 212 | |
718db961 | 213 | if (s->watchdog_event_source) { |
2787d83c | 214 | r = sd_event_source_set_time(s->watchdog_event_source, usec_add(s->watchdog_timestamp.monotonic, watchdog_usec)); |
718db961 | 215 | if (r < 0) { |
f2341e0a | 216 | log_unit_warning_errno(UNIT(s), r, "Failed to reset watchdog timer: %m"); |
718db961 LP |
217 | return; |
218 | } | |
219 | ||
842129f5 | 220 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 221 | } else { |
6a0f1f6d LP |
222 | r = sd_event_add_time( |
223 | UNIT(s)->manager->event, | |
224 | &s->watchdog_event_source, | |
225 | CLOCK_MONOTONIC, | |
2787d83c | 226 | usec_add(s->watchdog_timestamp.monotonic, watchdog_usec), 0, |
6a0f1f6d | 227 | service_dispatch_watchdog, s); |
c4ef3317 | 228 | if (r < 0) { |
f2341e0a | 229 | log_unit_warning_errno(UNIT(s), r, "Failed to add watchdog timer: %m"); |
c4ef3317 LP |
230 | return; |
231 | } | |
232 | ||
7dfbe2e3 TG |
233 | (void) sd_event_source_set_description(s->watchdog_event_source, "service-watchdog"); |
234 | ||
c4ef3317 LP |
235 | /* Let's process everything else which might be a sign |
236 | * of living before we consider a service died. */ | |
237 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
238 | } | |
bb242b7b | 239 | if (r < 0) |
f2341e0a | 240 | log_unit_warning_errno(UNIT(s), r, "Failed to install watchdog timer: %m"); |
bb242b7b MO |
241 | } |
242 | ||
ec35a7f6 LP |
243 | static void service_extend_event_source_timeout(Service *s, sd_event_source *source, usec_t extended) { |
244 | usec_t current; | |
245 | int r; | |
246 | ||
a327431b DB |
247 | assert(s); |
248 | ||
ec35a7f6 LP |
249 | /* Extends the specified event source timer to at least the specified time, unless it is already later |
250 | * anyway. */ | |
a327431b | 251 | |
ec35a7f6 LP |
252 | if (!source) |
253 | return; | |
a327431b | 254 | |
ec35a7f6 LP |
255 | r = sd_event_source_get_time(source, ¤t); |
256 | if (r < 0) { | |
257 | const char *desc; | |
258 | (void) sd_event_source_get_description(s->timer_event_source, &desc); | |
259 | log_unit_warning_errno(UNIT(s), r, "Failed to retrieve timeout time for event source '%s', ignoring: %m", strna(desc)); | |
260 | return; | |
261 | } | |
a327431b | 262 | |
ec35a7f6 LP |
263 | if (current >= extended) /* Current timeout is already longer, ignore this. */ |
264 | return; | |
a327431b | 265 | |
ec35a7f6 LP |
266 | r = sd_event_source_set_time(source, extended); |
267 | if (r < 0) { | |
268 | const char *desc; | |
269 | (void) sd_event_source_get_description(s->timer_event_source, &desc); | |
270 | log_unit_warning_errno(UNIT(s), r, "Failed to set timeout time for even source '%s', ignoring %m", strna(desc)); | |
a327431b DB |
271 | } |
272 | } | |
273 | ||
ec35a7f6 LP |
274 | static void service_extend_timeout(Service *s, usec_t extend_timeout_usec) { |
275 | usec_t extended; | |
276 | ||
277 | assert(s); | |
278 | ||
279 | if (IN_SET(extend_timeout_usec, 0, USEC_INFINITY)) | |
280 | return; | |
281 | ||
282 | extended = usec_add(now(CLOCK_MONOTONIC), extend_timeout_usec); | |
283 | ||
284 | service_extend_event_source_timeout(s, s->timer_event_source, extended); | |
285 | service_extend_event_source_timeout(s, s->watchdog_event_source, extended); | |
286 | } | |
287 | ||
a6927d7f MO |
288 | static void service_reset_watchdog(Service *s) { |
289 | assert(s); | |
290 | ||
291 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 292 | service_start_watchdog(s); |
a6927d7f MO |
293 | } |
294 | ||
95d0d8ed | 295 | static void service_override_watchdog_timeout(Service *s, usec_t watchdog_override_usec) { |
2787d83c M |
296 | assert(s); |
297 | ||
298 | s->watchdog_override_enable = true; | |
299 | s->watchdog_override_usec = watchdog_override_usec; | |
300 | service_reset_watchdog(s); | |
301 | ||
302 | log_unit_debug(UNIT(s), "watchdog_usec="USEC_FMT, s->watchdog_usec); | |
303 | log_unit_debug(UNIT(s), "watchdog_override_usec="USEC_FMT, s->watchdog_override_usec); | |
304 | } | |
305 | ||
a354329f LP |
306 | static void service_fd_store_unlink(ServiceFDStore *fs) { |
307 | ||
308 | if (!fs) | |
309 | return; | |
310 | ||
311 | if (fs->service) { | |
312 | assert(fs->service->n_fd_store > 0); | |
313 | LIST_REMOVE(fd_store, fs->service->fd_store, fs); | |
314 | fs->service->n_fd_store--; | |
315 | } | |
316 | ||
1d3fe304 | 317 | sd_event_source_disable_unref(fs->event_source); |
a354329f | 318 | |
8dd4c05b | 319 | free(fs->fdname); |
a354329f LP |
320 | safe_close(fs->fd); |
321 | free(fs); | |
322 | } | |
323 | ||
f0bfbfac ZJS |
324 | static void service_release_fd_store(Service *s) { |
325 | assert(s); | |
326 | ||
7eb2a8a1 LP |
327 | if (s->n_keep_fd_store > 0) |
328 | return; | |
329 | ||
f0bfbfac ZJS |
330 | log_unit_debug(UNIT(s), "Releasing all stored fds"); |
331 | while (s->fd_store) | |
332 | service_fd_store_unlink(s->fd_store); | |
333 | ||
334 | assert(s->n_fd_store == 0); | |
335 | } | |
336 | ||
7eb2a8a1 | 337 | static void service_release_resources(Unit *u) { |
a354329f LP |
338 | Service *s = SERVICE(u); |
339 | ||
340 | assert(s); | |
341 | ||
a34ceba6 | 342 | if (!s->fd_store && s->stdin_fd < 0 && s->stdout_fd < 0 && s->stderr_fd < 0) |
a354329f LP |
343 | return; |
344 | ||
f0bfbfac | 345 | log_unit_debug(u, "Releasing resources."); |
a354329f | 346 | |
a34ceba6 LP |
347 | s->stdin_fd = safe_close(s->stdin_fd); |
348 | s->stdout_fd = safe_close(s->stdout_fd); | |
349 | s->stderr_fd = safe_close(s->stderr_fd); | |
350 | ||
7eb2a8a1 | 351 | service_release_fd_store(s); |
a354329f LP |
352 | } |
353 | ||
87f0e418 LP |
354 | static void service_done(Unit *u) { |
355 | Service *s = SERVICE(u); | |
44d8db9e LP |
356 | |
357 | assert(s); | |
358 | ||
a1e58e8e LP |
359 | s->pid_file = mfree(s->pid_file); |
360 | s->status_text = mfree(s->status_text); | |
efe6e7d3 | 361 | |
e8a565cb | 362 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, false); |
e537352b | 363 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 364 | s->control_command = NULL; |
867b3b7d | 365 | s->main_command = NULL; |
44d8db9e | 366 | |
29206d46 LP |
367 | dynamic_creds_unref(&s->dynamic_creds); |
368 | ||
37520c1b LP |
369 | exit_status_set_free(&s->restart_prevent_status); |
370 | exit_status_set_free(&s->restart_force_status); | |
371 | exit_status_set_free(&s->success_status); | |
96342de6 | 372 | |
44d8db9e LP |
373 | /* This will leak a process, but at least no memory or any of |
374 | * our resources */ | |
5e94833f LP |
375 | service_unwatch_main_pid(s); |
376 | service_unwatch_control_pid(s); | |
3e52541e | 377 | service_unwatch_pid_file(s); |
44d8db9e | 378 | |
05e343b7 | 379 | if (s->bus_name) { |
ac155bb8 | 380 | unit_unwatch_bus_name(u, s->bus_name); |
a1e58e8e | 381 | s->bus_name = mfree(s->bus_name); |
05e343b7 LP |
382 | } |
383 | ||
d8ccf5fd DM |
384 | s->bus_name_owner = mfree(s->bus_name_owner); |
385 | ||
064c5938 ZJS |
386 | s->usb_function_descriptors = mfree(s->usb_function_descriptors); |
387 | s->usb_function_strings = mfree(s->usb_function_strings); | |
388 | ||
4f2d528d | 389 | service_close_socket_fd(s); |
9d565427 | 390 | s->peer = socket_peer_unref(s->peer); |
4f2d528d | 391 | |
57020a3a | 392 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 393 | |
bb242b7b MO |
394 | service_stop_watchdog(s); |
395 | ||
718db961 | 396 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
5686391b | 397 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); |
a354329f | 398 | |
7eb2a8a1 | 399 | service_release_resources(u); |
718db961 LP |
400 | } |
401 | ||
2339fc93 LP |
402 | static int on_fd_store_io(sd_event_source *e, int fd, uint32_t revents, void *userdata) { |
403 | ServiceFDStore *fs = userdata; | |
404 | ||
405 | assert(e); | |
406 | assert(fs); | |
407 | ||
408 | /* If we get either EPOLLHUP or EPOLLERR, it's time to remove this entry from the fd store */ | |
16f70d63 ZJS |
409 | log_unit_debug(UNIT(fs->service), |
410 | "Received %s on stored fd %d (%s), closing.", | |
411 | revents & EPOLLERR ? "EPOLLERR" : "EPOLLHUP", | |
412 | fs->fd, strna(fs->fdname)); | |
2339fc93 LP |
413 | service_fd_store_unlink(fs); |
414 | return 0; | |
415 | } | |
416 | ||
cb5a46b8 | 417 | static int service_add_fd_store(Service *s, int fd, const char *name, bool do_poll) { |
2339fc93 LP |
418 | ServiceFDStore *fs; |
419 | int r; | |
420 | ||
9021ff17 ZJS |
421 | /* fd is always consumed if we return >= 0 */ |
422 | ||
2339fc93 LP |
423 | assert(s); |
424 | assert(fd >= 0); | |
425 | ||
426 | if (s->n_fd_store >= s->n_fd_store_max) | |
b0924635 ZJS |
427 | return -EXFULL; /* Our store is full. |
428 | * Use this errno rather than E[NM]FILE to distinguish from | |
429 | * the case where systemd itself hits the file limit. */ | |
2339fc93 LP |
430 | |
431 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
432 | r = same_fd(fs->fd, fd); | |
433 | if (r < 0) | |
434 | return r; | |
435 | if (r > 0) { | |
2339fc93 | 436 | safe_close(fd); |
9021ff17 | 437 | return 0; /* fd already included */ |
2339fc93 LP |
438 | } |
439 | } | |
440 | ||
b0cea477 | 441 | fs = new(ServiceFDStore, 1); |
2339fc93 LP |
442 | if (!fs) |
443 | return -ENOMEM; | |
444 | ||
b0cea477 LP |
445 | *fs = (ServiceFDStore) { |
446 | .fd = fd, | |
447 | .service = s, | |
448 | .do_poll = do_poll, | |
449 | .fdname = strdup(name ?: "stored"), | |
450 | }; | |
451 | ||
17dec0f7 | 452 | if (!fs->fdname) { |
453 | free(fs); | |
8dd4c05b | 454 | return -ENOMEM; |
17dec0f7 | 455 | } |
2339fc93 | 456 | |
cb5a46b8 KL |
457 | if (do_poll) { |
458 | r = sd_event_add_io(UNIT(s)->manager->event, &fs->event_source, fd, 0, on_fd_store_io, fs); | |
459 | if (r < 0 && r != -EPERM) { /* EPERM indicates fds that aren't pollable, which is OK */ | |
460 | free(fs->fdname); | |
461 | free(fs); | |
462 | return r; | |
463 | } else if (r >= 0) | |
464 | (void) sd_event_source_set_description(fs->event_source, "service-fd-store"); | |
465 | } | |
7dfbe2e3 | 466 | |
2339fc93 LP |
467 | LIST_PREPEND(fd_store, s->fd_store, fs); |
468 | s->n_fd_store++; | |
469 | ||
9021ff17 | 470 | return 1; /* fd newly stored */ |
2339fc93 LP |
471 | } |
472 | ||
cb5a46b8 | 473 | static int service_add_fd_store_set(Service *s, FDSet *fds, const char *name, bool do_poll) { |
2339fc93 LP |
474 | int r; |
475 | ||
476 | assert(s); | |
477 | ||
b0924635 | 478 | while (fdset_size(fds) > 0) { |
2339fc93 LP |
479 | _cleanup_close_ int fd = -1; |
480 | ||
481 | fd = fdset_steal_first(fds); | |
482 | if (fd < 0) | |
483 | break; | |
484 | ||
cb5a46b8 | 485 | r = service_add_fd_store(s, fd, name, do_poll); |
b0924635 ZJS |
486 | if (r == -EXFULL) |
487 | return log_unit_warning_errno(UNIT(s), r, | |
488 | "Cannot store more fds than FileDescriptorStoreMax=%u, closing remaining.", | |
489 | s->n_fd_store_max); | |
2339fc93 | 490 | if (r < 0) |
b0924635 | 491 | return log_unit_error_errno(UNIT(s), r, "Failed to add fd to store: %m"); |
9021ff17 | 492 | if (r > 0) |
16f70d63 | 493 | log_unit_debug(UNIT(s), "Added fd %u (%s) to fd store.", fd, strna(name)); |
9021ff17 | 494 | fd = -1; |
2339fc93 LP |
495 | } |
496 | ||
2339fc93 LP |
497 | return 0; |
498 | } | |
499 | ||
e78ee06d LP |
500 | static void service_remove_fd_store(Service *s, const char *name) { |
501 | ServiceFDStore *fs, *n; | |
502 | ||
503 | assert(s); | |
504 | assert(name); | |
505 | ||
506 | LIST_FOREACH_SAFE(fd_store, fs, n, s->fd_store) { | |
507 | if (!streq(fs->fdname, name)) | |
508 | continue; | |
509 | ||
510 | log_unit_debug(UNIT(s), "Got explicit request to remove fd %i (%s), closing.", fs->fd, name); | |
511 | service_fd_store_unlink(fs); | |
512 | } | |
513 | } | |
514 | ||
718db961 LP |
515 | static int service_arm_timer(Service *s, usec_t usec) { |
516 | int r; | |
517 | ||
518 | assert(s); | |
519 | ||
718db961 | 520 | if (s->timer_event_source) { |
36c16a7c | 521 | r = sd_event_source_set_time(s->timer_event_source, usec); |
718db961 LP |
522 | if (r < 0) |
523 | return r; | |
524 | ||
525 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
526 | } | |
527 | ||
36c16a7c LP |
528 | if (usec == USEC_INFINITY) |
529 | return 0; | |
530 | ||
7dfbe2e3 | 531 | r = sd_event_add_time( |
6a0f1f6d LP |
532 | UNIT(s)->manager->event, |
533 | &s->timer_event_source, | |
534 | CLOCK_MONOTONIC, | |
36c16a7c | 535 | usec, 0, |
6a0f1f6d | 536 | service_dispatch_timer, s); |
7dfbe2e3 TG |
537 | if (r < 0) |
538 | return r; | |
539 | ||
540 | (void) sd_event_source_set_description(s->timer_event_source, "service-timer"); | |
541 | ||
542 | return 0; | |
44d8db9e LP |
543 | } |
544 | ||
243b1432 LP |
545 | static int service_verify(Service *s) { |
546 | assert(s); | |
e0cfed4c | 547 | assert(UNIT(s)->load_state == UNIT_LOADED); |
243b1432 | 548 | |
3f00d379 ZJS |
549 | if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP] |
550 | && UNIT(s)->success_action == EMERGENCY_ACTION_NONE) { | |
551 | /* FailureAction= only makes sense if one of the start or stop commands is specified. | |
552 | * SuccessAction= will be executed unconditionally if no commands are specified. Hence, | |
553 | * either a command or SuccessAction= are required. */ | |
554 | ||
555 | log_unit_error(UNIT(s), "Service has no ExecStart=, ExecStop=, or SuccessAction=. Refusing."); | |
6f40aa45 | 556 | return -ENOEXEC; |
243b1432 LP |
557 | } |
558 | ||
96fb8242 | 559 | if (s->type != SERVICE_ONESHOT && !s->exec_command[SERVICE_EXEC_START]) { |
f2341e0a | 560 | log_unit_error(UNIT(s), "Service has no ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 561 | return -ENOEXEC; |
96fb8242 LP |
562 | } |
563 | ||
3f00d379 ZJS |
564 | if (!s->remain_after_exit && !s->exec_command[SERVICE_EXEC_START] && UNIT(s)->success_action == EMERGENCY_ACTION_NONE) { |
565 | log_unit_error(UNIT(s), "Service has no ExecStart= and no SuccessAction= settings and does not have RemainAfterExit=yes set. Refusing."); | |
6f40aa45 | 566 | return -ENOEXEC; |
96fb8242 LP |
567 | } |
568 | ||
569 | if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) { | |
f2341e0a | 570 | log_unit_error(UNIT(s), "Service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 571 | return -ENOEXEC; |
6cf6bbc2 LP |
572 | } |
573 | ||
10e72727 CZ |
574 | if (s->type == SERVICE_ONESHOT |
575 | && !IN_SET(s->restart, SERVICE_RESTART_NO, SERVICE_RESTART_ON_FAILURE, SERVICE_RESTART_ON_ABNORMAL, SERVICE_RESTART_ON_WATCHDOG, SERVICE_RESTART_ON_ABORT)) { | |
576 | 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 | 577 | return -ENOEXEC; |
37520c1b LP |
578 | } |
579 | ||
55ebf98c | 580 | if (s->type == SERVICE_ONESHOT && !exit_status_set_is_empty(&s->restart_force_status)) { |
f2341e0a | 581 | log_unit_error(UNIT(s), "Service has RestartForceStatus= set, which isn't allowed for Type=oneshot services. Refusing."); |
6f40aa45 | 582 | return -ENOEXEC; |
b0693d30 MW |
583 | } |
584 | ||
05e343b7 | 585 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
f2341e0a | 586 | log_unit_error(UNIT(s), "Service is of type D-Bus but no D-Bus service name has been specified. Refusing."); |
6f40aa45 | 587 | return -ENOEXEC; |
4d0e5dbd LP |
588 | } |
589 | ||
7e2668c6 | 590 | if (s->bus_name && s->type != SERVICE_DBUS) |
f2341e0a | 591 | log_unit_warning(UNIT(s), "Service has a D-Bus service name specified, but is not of type dbus. Ignoring."); |
7e2668c6 | 592 | |
3742095b | 593 | if (s->exec_context.pam_name && !IN_SET(s->kill_context.kill_mode, KILL_CONTROL_GROUP, KILL_MIXED)) { |
f2341e0a | 594 | log_unit_error(UNIT(s), "Service has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing."); |
6f40aa45 | 595 | return -ENOEXEC; |
05e343b7 LP |
596 | } |
597 | ||
6b7e5923 PS |
598 | if (s->usb_function_descriptors && !s->usb_function_strings) |
599 | log_unit_warning(UNIT(s), "Service has USBFunctionDescriptors= setting, but no USBFunctionStrings=. Ignoring."); | |
600 | ||
601 | if (!s->usb_function_descriptors && s->usb_function_strings) | |
602 | log_unit_warning(UNIT(s), "Service has USBFunctionStrings= setting, but no USBFunctionDescriptors=. Ignoring."); | |
603 | ||
36c16a7c | 604 | if (s->runtime_max_usec != USEC_INFINITY && s->type == SERVICE_ONESHOT) |
226a08f2 | 605 | log_unit_warning(UNIT(s), "RuntimeMaxSec= has no effect in combination with Type=oneshot. Ignoring."); |
36c16a7c | 606 | |
243b1432 LP |
607 | return 0; |
608 | } | |
609 | ||
a40eb732 LP |
610 | static int service_add_default_dependencies(Service *s) { |
611 | int r; | |
612 | ||
613 | assert(s); | |
614 | ||
45f06b34 LP |
615 | if (!UNIT(s)->default_dependencies) |
616 | return 0; | |
617 | ||
a40eb732 LP |
618 | /* Add a number of automatic dependencies useful for the |
619 | * majority of services. */ | |
620 | ||
463d0d15 | 621 | if (MANAGER_IS_SYSTEM(UNIT(s)->manager)) { |
cb4c247d LP |
622 | /* First, pull in the really early boot stuff, and |
623 | * require it, so that we fail if we can't acquire | |
624 | * it. */ | |
625 | ||
5a724170 | 626 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
cb4c247d LP |
627 | if (r < 0) |
628 | return r; | |
629 | } else { | |
630 | ||
631 | /* In the --user instance there's no sysinit.target, | |
632 | * in that case require basic.target instead. */ | |
633 | ||
35d8c19a | 634 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
cb4c247d LP |
635 | if (r < 0) |
636 | return r; | |
637 | } | |
638 | ||
639 | /* Second, if the rest of the base system is in the same | |
640 | * transaction, order us after it, but do not pull it in or | |
641 | * even require it. */ | |
35d8c19a | 642 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_BASIC_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
fccd44ec KS |
643 | if (r < 0) |
644 | return r; | |
a40eb732 | 645 | |
cb4c247d | 646 | /* Third, add us in for normal shutdown. */ |
5a724170 | 647 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, true, UNIT_DEPENDENCY_DEFAULT); |
a40eb732 LP |
648 | } |
649 | ||
3b7f79dc | 650 | static void service_fix_stdio(Service *s) { |
4dfc092a LP |
651 | assert(s); |
652 | ||
3b7f79dc LP |
653 | /* Note that EXEC_INPUT_NULL and EXEC_OUTPUT_INHERIT play a special role here: they are both the |
654 | * default value that is subject to automatic overriding triggered by other settings and an explicit | |
162392b7 | 655 | * choice the user can make. We don't distinguish between these cases currently. */ |
3b7f79dc LP |
656 | |
657 | if (s->exec_context.std_input == EXEC_INPUT_NULL && | |
658 | s->exec_context.stdin_data_size > 0) | |
659 | s->exec_context.std_input = EXEC_INPUT_DATA; | |
660 | ||
661 | if (IN_SET(s->exec_context.std_input, | |
662 | EXEC_INPUT_TTY, | |
663 | EXEC_INPUT_TTY_FORCE, | |
664 | EXEC_INPUT_TTY_FAIL, | |
665 | EXEC_INPUT_SOCKET, | |
666 | EXEC_INPUT_NAMED_FD)) | |
667 | return; | |
668 | ||
669 | /* We assume these listed inputs refer to bidirectional streams, and hence duplicating them from | |
670 | * stdin to stdout/stderr makes sense and hence leaving EXEC_OUTPUT_INHERIT in place makes sense, | |
671 | * too. Outputs such as regular files or sealed data memfds otoh don't really make sense to be | |
672 | * duplicated for both input and output at the same time (since they then would cause a feedback | |
673 | * loop), hence override EXEC_OUTPUT_INHERIT with the default stderr/stdout setting. */ | |
4dfc092a LP |
674 | |
675 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
3b7f79dc | 676 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT) |
1124fe6f | 677 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a | 678 | |
3b7f79dc | 679 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT) |
1124fe6f | 680 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
681 | } |
682 | ||
45f06b34 LP |
683 | static int service_setup_bus_name(Service *s) { |
684 | int r; | |
685 | ||
686 | assert(s); | |
687 | ||
688 | if (!s->bus_name) | |
689 | return 0; | |
690 | ||
35d8c19a | 691 | r = unit_add_dependency_by_name(UNIT(s), UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, true, UNIT_DEPENDENCY_FILE); |
222953e8 DR |
692 | if (r < 0) |
693 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); | |
45f06b34 | 694 | |
a132bef0 | 695 | /* We always want to be ordered against dbus.socket if both are in the transaction. */ |
35d8c19a | 696 | r = unit_add_dependency_by_name(UNIT(s), UNIT_AFTER, SPECIAL_DBUS_SOCKET, true, UNIT_DEPENDENCY_FILE); |
45f06b34 | 697 | if (r < 0) |
92bed462 | 698 | return log_unit_error_errno(UNIT(s), r, "Failed to add dependency on " SPECIAL_DBUS_SOCKET ": %m"); |
45f06b34 LP |
699 | |
700 | r = unit_watch_bus_name(UNIT(s), s->bus_name); | |
701 | if (r == -EEXIST) | |
702 | return log_unit_error_errno(UNIT(s), r, "Two services allocated for the same bus name %s, refusing operation.", s->bus_name); | |
703 | if (r < 0) | |
704 | return log_unit_error_errno(UNIT(s), r, "Cannot watch bus name %s: %m", s->bus_name); | |
705 | ||
706 | return 0; | |
707 | } | |
708 | ||
8545f7ce LP |
709 | static int service_add_extras(Service *s) { |
710 | int r; | |
711 | ||
712 | assert(s); | |
713 | ||
714 | if (s->type == _SERVICE_TYPE_INVALID) { | |
715 | /* Figure out a type automatically */ | |
716 | if (s->bus_name) | |
717 | s->type = SERVICE_DBUS; | |
718 | else if (s->exec_command[SERVICE_EXEC_START]) | |
719 | s->type = SERVICE_SIMPLE; | |
720 | else | |
721 | s->type = SERVICE_ONESHOT; | |
722 | } | |
723 | ||
724 | /* Oneshot services have disabled start timeout by default */ | |
725 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
36c16a7c | 726 | s->timeout_start_usec = USEC_INFINITY; |
8545f7ce | 727 | |
3b7f79dc | 728 | service_fix_stdio(s); |
8545f7ce LP |
729 | |
730 | r = unit_patch_contexts(UNIT(s)); | |
731 | if (r < 0) | |
732 | return r; | |
733 | ||
734 | r = unit_add_exec_dependencies(UNIT(s), &s->exec_context); | |
735 | if (r < 0) | |
736 | return r; | |
737 | ||
d79200e2 | 738 | r = unit_set_default_slice(UNIT(s)); |
8545f7ce LP |
739 | if (r < 0) |
740 | return r; | |
741 | ||
4330dc03 AJ |
742 | /* If the service needs the notify socket, let's enable it automatically. */ |
743 | if (s->notify_access == NOTIFY_NONE && | |
744 | (s->type == SERVICE_NOTIFY || s->watchdog_usec > 0 || s->n_fd_store_max > 0)) | |
8545f7ce LP |
745 | s->notify_access = NOTIFY_MAIN; |
746 | ||
afcfaa69 LP |
747 | /* If no OOM policy was explicitly set, then default to the configure default OOM policy. Except when |
748 | * delegation is on, in that case it we assume the payload knows better what to do and can process | |
5238e957 | 749 | * things in a more focused way. */ |
afcfaa69 LP |
750 | if (s->oom_policy < 0) |
751 | s->oom_policy = s->cgroup_context.delegate ? OOM_CONTINUE : UNIT(s)->manager->default_oom_policy; | |
752 | ||
753 | /* Let the kernel do the killing if that's requested. */ | |
754 | s->cgroup_context.memory_oom_group = s->oom_policy == OOM_KILL; | |
755 | ||
45f06b34 LP |
756 | r = service_add_default_dependencies(s); |
757 | if (r < 0) | |
758 | return r; | |
8545f7ce | 759 | |
45f06b34 LP |
760 | r = service_setup_bus_name(s); |
761 | if (r < 0) | |
762 | return r; | |
8545f7ce LP |
763 | |
764 | return 0; | |
765 | } | |
766 | ||
e537352b | 767 | static int service_load(Unit *u) { |
e537352b | 768 | Service *s = SERVICE(u); |
8bb2d17d | 769 | int r; |
e537352b | 770 | |
e0cfed4c | 771 | r = unit_load_fragment_and_dropin(u, true); |
c2756a68 | 772 | if (r < 0) |
5cb5a6ff LP |
773 | return r; |
774 | ||
e0cfed4c ZJS |
775 | if (u->load_state != UNIT_LOADED) |
776 | return 0; | |
034c6ed7 | 777 | |
23a177ef | 778 | /* This is a new unit? Then let's add in some extras */ |
e0cfed4c ZJS |
779 | r = service_add_extras(s); |
780 | if (r < 0) | |
781 | return r; | |
8e274523 | 782 | |
243b1432 | 783 | return service_verify(s); |
034c6ed7 LP |
784 | } |
785 | ||
87f0e418 | 786 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
4c2f5842 | 787 | char buf_restart[FORMAT_TIMESPAN_MAX], buf_start[FORMAT_TIMESPAN_MAX], buf_stop[FORMAT_TIMESPAN_MAX], |
12213aed | 788 | buf_runtime[FORMAT_TIMESPAN_MAX], buf_watchdog[FORMAT_TIMESPAN_MAX], buf_abort[FORMAT_TIMESPAN_MAX]; |
5cb5a6ff | 789 | ServiceExecCommand c; |
87f0e418 | 790 | Service *s = SERVICE(u); |
47be870b | 791 | const char *prefix2; |
5cb5a6ff LP |
792 | |
793 | assert(s); | |
794 | ||
4c940960 | 795 | prefix = strempty(prefix); |
63c372cb | 796 | prefix2 = strjoina(prefix, "\t"); |
44d8db9e | 797 | |
5cb5a6ff | 798 | fprintf(f, |
81a2b7ce | 799 | "%sService State: %s\n" |
f42806df LP |
800 | "%sResult: %s\n" |
801 | "%sReload Result: %s\n" | |
4c2f5842 | 802 | "%sClean Result: %s\n" |
81a2b7ce | 803 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 804 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 805 | "%sRemainAfterExit: %s\n" |
3185a36b | 806 | "%sGuessMainPID: %s\n" |
c952c6ec | 807 | "%sType: %s\n" |
2cf3143a | 808 | "%sRestart: %s\n" |
308d72dc | 809 | "%sNotifyAccess: %s\n" |
afcfaa69 LP |
810 | "%sNotifyState: %s\n" |
811 | "%sOOMPolicy: %s\n", | |
81a2b7ce | 812 | prefix, service_state_to_string(s->state), |
f42806df LP |
813 | prefix, service_result_to_string(s->result), |
814 | prefix, service_result_to_string(s->reload_result), | |
4c2f5842 | 815 | prefix, service_result_to_string(s->clean_result), |
81a2b7ce | 816 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 817 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 818 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 819 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 820 | prefix, service_type_to_string(s->type), |
2cf3143a | 821 | prefix, service_restart_to_string(s->restart), |
308d72dc | 822 | prefix, notify_access_to_string(s->notify_access), |
afcfaa69 LP |
823 | prefix, notify_state_to_string(s->notify_state), |
824 | prefix, oom_policy_to_string(s->oom_policy)); | |
5cb5a6ff | 825 | |
70123e68 LP |
826 | if (s->control_pid > 0) |
827 | fprintf(f, | |
ccd06097 ZJS |
828 | "%sControl PID: "PID_FMT"\n", |
829 | prefix, s->control_pid); | |
70123e68 LP |
830 | |
831 | if (s->main_pid > 0) | |
832 | fprintf(f, | |
ccd06097 | 833 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
834 | "%sMain PID Known: %s\n" |
835 | "%sMain PID Alien: %s\n", | |
ccd06097 | 836 | prefix, s->main_pid, |
6dfa5494 LP |
837 | prefix, yes_no(s->main_pid_known), |
838 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 839 | |
034c6ed7 LP |
840 | if (s->pid_file) |
841 | fprintf(f, | |
842 | "%sPIDFile: %s\n", | |
843 | prefix, s->pid_file); | |
844 | ||
05e343b7 LP |
845 | if (s->bus_name) |
846 | fprintf(f, | |
847 | "%sBusName: %s\n" | |
848 | "%sBus Name Good: %s\n", | |
849 | prefix, s->bus_name, | |
850 | prefix, yes_no(s->bus_name_good)); | |
851 | ||
9dfb64f8 ZJS |
852 | if (UNIT_ISSET(s->accept_socket)) |
853 | fprintf(f, | |
854 | "%sAccept Socket: %s\n", | |
855 | prefix, UNIT_DEREF(s->accept_socket)->id); | |
856 | ||
c9d41699 YW |
857 | fprintf(f, |
858 | "%sRestartSec: %s\n" | |
859 | "%sTimeoutStartSec: %s\n" | |
dcab85be | 860 | "%sTimeoutStopSec: %s\n", |
c9d41699 YW |
861 | prefix, format_timespan(buf_restart, sizeof(buf_restart), s->restart_usec, USEC_PER_SEC), |
862 | prefix, format_timespan(buf_start, sizeof(buf_start), s->timeout_start_usec, USEC_PER_SEC), | |
dcab85be YW |
863 | prefix, format_timespan(buf_stop, sizeof(buf_stop), s->timeout_stop_usec, USEC_PER_SEC)); |
864 | ||
865 | if (s->timeout_abort_set) | |
866 | fprintf(f, | |
867 | "%sTimeoutAbortSec: %s\n", | |
868 | prefix, format_timespan(buf_abort, sizeof(buf_abort), s->timeout_abort_usec, USEC_PER_SEC)); | |
869 | ||
870 | fprintf(f, | |
871 | "%sRuntimeMaxSec: %s\n" | |
872 | "%sWatchdogSec: %s\n", | |
c9d41699 YW |
873 | prefix, format_timespan(buf_runtime, sizeof(buf_runtime), s->runtime_max_usec, USEC_PER_SEC), |
874 | prefix, format_timespan(buf_watchdog, sizeof(buf_watchdog), s->watchdog_usec, USEC_PER_SEC)); | |
875 | ||
4819ff03 | 876 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
877 | exec_context_dump(&s->exec_context, f, prefix); |
878 | ||
e537352b | 879 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 880 | |
44d8db9e LP |
881 | if (!s->exec_command[c]) |
882 | continue; | |
883 | ||
40d50879 | 884 | fprintf(f, "%s-> %s:\n", |
94f04347 | 885 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
886 | |
887 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 888 | } |
44d8db9e | 889 | |
8c47c732 LP |
890 | if (s->status_text) |
891 | fprintf(f, "%sStatus Text: %s\n", | |
892 | prefix, s->status_text); | |
a354329f | 893 | |
ece174c5 | 894 | if (s->n_fd_store_max > 0) |
a354329f LP |
895 | fprintf(f, |
896 | "%sFile Descriptor Store Max: %u\n" | |
da6053d0 | 897 | "%sFile Descriptor Store Current: %zu\n", |
a354329f LP |
898 | prefix, s->n_fd_store_max, |
899 | prefix, s->n_fd_store); | |
18f573aa | 900 | |
bc0623df | 901 | cgroup_context_dump(UNIT(s), f, prefix); |
5cb5a6ff LP |
902 | } |
903 | ||
db256aab LP |
904 | static int service_is_suitable_main_pid(Service *s, pid_t pid, int prio) { |
905 | Unit *owner; | |
906 | ||
907 | assert(s); | |
908 | assert(pid_is_valid(pid)); | |
909 | ||
910 | /* Checks whether the specified PID is suitable as main PID for this service. returns negative if not, 0 if the | |
911 | * PID is questionnable but should be accepted if the source of configuration is trusted. > 0 if the PID is | |
912 | * good */ | |
913 | ||
914 | if (pid == getpid_cached() || pid == 1) { | |
915 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" is the manager, refusing.", pid); | |
916 | return -EPERM; | |
917 | } | |
918 | ||
919 | if (pid == s->control_pid) { | |
920 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" is the control process, refusing.", pid); | |
921 | return -EPERM; | |
922 | } | |
923 | ||
924 | if (!pid_is_alive(pid)) { | |
925 | log_unit_full(UNIT(s), prio, 0, "New main PID "PID_FMT" does not exist or is a zombie.", pid); | |
926 | return -ESRCH; | |
927 | } | |
928 | ||
929 | owner = manager_get_unit_by_pid(UNIT(s)->manager, pid); | |
930 | if (owner == UNIT(s)) { | |
931 | log_unit_debug(UNIT(s), "New main PID "PID_FMT" belongs to service, we are happy.", pid); | |
932 | return 1; /* Yay, it's definitely a good PID */ | |
933 | } | |
934 | ||
935 | return 0; /* Hmm it's a suspicious PID, let's accept it if configuration source is trusted */ | |
936 | } | |
937 | ||
c5419d42 | 938 | static int service_load_pid_file(Service *s, bool may_warn) { |
db256aab | 939 | char procfs[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; |
73969ab6 | 940 | bool questionable_pid_file = false; |
7fd1b19b | 941 | _cleanup_free_ char *k = NULL; |
db256aab LP |
942 | _cleanup_close_ int fd = -1; |
943 | int r, prio; | |
5925dd3c | 944 | pid_t pid; |
034c6ed7 LP |
945 | |
946 | assert(s); | |
947 | ||
034c6ed7 | 948 | if (!s->pid_file) |
13230d5d | 949 | return -ENOENT; |
034c6ed7 | 950 | |
db256aab LP |
951 | prio = may_warn ? LOG_INFO : LOG_DEBUG; |
952 | ||
a5648b80 ZJS |
953 | r = chase_symlinks(s->pid_file, NULL, CHASE_SAFE, NULL, &fd); |
954 | if (r == -ENOLINK) { | |
955 | log_unit_full(UNIT(s), LOG_DEBUG, r, | |
956 | "Potentially unsafe symlink chain, will now retry with relaxed checks: %s", s->pid_file); | |
73969ab6 LP |
957 | |
958 | questionable_pid_file = true; | |
959 | ||
a5648b80 | 960 | r = chase_symlinks(s->pid_file, NULL, 0, NULL, &fd); |
73969ab6 | 961 | } |
a5648b80 ZJS |
962 | if (r < 0) |
963 | return log_unit_full(UNIT(s), prio, fd, | |
964 | "Can't open PID file %s (yet?) after %s: %m", s->pid_file, service_state_to_string(s->state)); | |
db256aab | 965 | |
a5648b80 ZJS |
966 | /* Let's read the PID file now that we chased it down. But we need to convert the O_PATH fd |
967 | * chase_symlinks() returned us into a proper fd first. */ | |
db256aab LP |
968 | xsprintf(procfs, "/proc/self/fd/%i", fd); |
969 | r = read_one_line_file(procfs, &k); | |
970 | if (r < 0) | |
a5648b80 ZJS |
971 | return log_unit_error_errno(UNIT(s), r, |
972 | "Can't convert PID files %s O_PATH file descriptor to proper file descriptor: %m", | |
973 | s->pid_file); | |
034c6ed7 | 974 | |
5925dd3c | 975 | r = parse_pid(k, &pid); |
db256aab LP |
976 | if (r < 0) |
977 | return log_unit_full(UNIT(s), prio, r, "Failed to parse PID from file %s: %m", s->pid_file); | |
978 | ||
979 | if (s->main_pid_known && pid == s->main_pid) | |
980 | return 0; | |
981 | ||
982 | r = service_is_suitable_main_pid(s, pid, prio); | |
983 | if (r < 0) | |
5925dd3c | 984 | return r; |
db256aab LP |
985 | if (r == 0) { |
986 | struct stat st; | |
406eaf93 | 987 | |
73969ab6 LP |
988 | if (questionable_pid_file) { |
989 | log_unit_error(UNIT(s), "Refusing to accept PID outside of service control group, acquired through unsafe symlink chain: %s", s->pid_file); | |
990 | return -EPERM; | |
991 | } | |
992 | ||
db256aab LP |
993 | /* Hmm, it's not clear if the new main PID is safe. Let's allow this if the PID file is owned by root */ |
994 | ||
995 | if (fstat(fd, &st) < 0) | |
996 | return log_unit_error_errno(UNIT(s), errno, "Failed to fstat() PID file O_PATH fd: %m"); | |
997 | ||
998 | if (st.st_uid != 0) { | |
999 | 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); | |
1000 | return -EPERM; | |
1001 | } | |
1002 | ||
1003 | 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 |
1004 | } |
1005 | ||
db01f8b3 | 1006 | if (s->main_pid_known) { |
f2341e0a | 1007 | log_unit_debug(UNIT(s), "Main PID changing: "PID_FMT" -> "PID_FMT, s->main_pid, pid); |
8bb2d17d | 1008 | |
db01f8b3 MS |
1009 | service_unwatch_main_pid(s); |
1010 | s->main_pid_known = false; | |
3a111838 | 1011 | } else |
f2341e0a | 1012 | log_unit_debug(UNIT(s), "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 1013 | |
117dcc57 ZJS |
1014 | r = service_set_main_pid(s, pid); |
1015 | if (r < 0) | |
16f6025e LP |
1016 | return r; |
1017 | ||
f75f613d | 1018 | r = unit_watch_pid(UNIT(s), pid, false); |
e8b509d3 LP |
1019 | if (r < 0) /* FIXME: we need to do something here */ |
1020 | return log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" for service: %m", pid); | |
034c6ed7 | 1021 | |
db256aab | 1022 | return 1; |
034c6ed7 LP |
1023 | } |
1024 | ||
783e05d6 | 1025 | static void service_search_main_pid(Service *s) { |
efdb0237 | 1026 | pid_t pid = 0; |
4fbf50b3 LP |
1027 | int r; |
1028 | ||
1029 | assert(s); | |
1030 | ||
3185a36b LP |
1031 | /* If we know it anyway, don't ever fallback to unreliable |
1032 | * heuristics */ | |
4fbf50b3 | 1033 | if (s->main_pid_known) |
783e05d6 | 1034 | return; |
4fbf50b3 | 1035 | |
3185a36b | 1036 | if (!s->guess_main_pid) |
783e05d6 | 1037 | return; |
3185a36b | 1038 | |
4fbf50b3 LP |
1039 | assert(s->main_pid <= 0); |
1040 | ||
783e05d6 ZJS |
1041 | if (unit_search_main_pid(UNIT(s), &pid) < 0) |
1042 | return; | |
4fbf50b3 | 1043 | |
f2341e0a | 1044 | log_unit_debug(UNIT(s), "Main PID guessed: "PID_FMT, pid); |
783e05d6 ZJS |
1045 | if (service_set_main_pid(s, pid) < 0) |
1046 | return; | |
4fbf50b3 | 1047 | |
f75f613d | 1048 | r = unit_watch_pid(UNIT(s), pid, false); |
783e05d6 | 1049 | if (r < 0) |
4fbf50b3 | 1050 | /* FIXME: we need to do something here */ |
f2341e0a | 1051 | log_unit_warning_errno(UNIT(s), r, "Failed to watch PID "PID_FMT" from: %m", pid); |
4fbf50b3 LP |
1052 | } |
1053 | ||
034c6ed7 LP |
1054 | static void service_set_state(Service *s, ServiceState state) { |
1055 | ServiceState old_state; | |
e056b01d | 1056 | const UnitActiveState *table; |
842129f5 | 1057 | |
5cb5a6ff LP |
1058 | assert(s); |
1059 | ||
6fcbec6f LP |
1060 | if (s->state != state) |
1061 | bus_unit_send_pending_change_signal(UNIT(s), false); | |
1062 | ||
e056b01d LP |
1063 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
1064 | ||
034c6ed7 | 1065 | old_state = s->state; |
5cb5a6ff | 1066 | s->state = state; |
034c6ed7 | 1067 | |
3a111838 MS |
1068 | service_unwatch_pid_file(s); |
1069 | ||
842129f5 | 1070 | if (!IN_SET(state, |
31cd5f63 | 1071 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
36c16a7c | 1072 | SERVICE_RUNNING, |
842129f5 | 1073 | SERVICE_RELOAD, |
c87700a1 | 1074 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
842129f5 | 1075 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
4c2f5842 LP |
1076 | SERVICE_AUTO_RESTART, |
1077 | SERVICE_CLEANING)) | |
718db961 | 1078 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 1079 | |
842129f5 LP |
1080 | if (!IN_SET(state, |
1081 | SERVICE_START, SERVICE_START_POST, | |
1082 | SERVICE_RUNNING, SERVICE_RELOAD, | |
c87700a1 | 1083 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
bf108e55 | 1084 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 1085 | service_unwatch_main_pid(s); |
867b3b7d LP |
1086 | s->main_command = NULL; |
1087 | } | |
034c6ed7 | 1088 | |
842129f5 | 1089 | if (!IN_SET(state, |
31cd5f63 | 1090 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
842129f5 | 1091 | SERVICE_RELOAD, |
c87700a1 | 1092 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 LP |
1093 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
1094 | SERVICE_CLEANING)) { | |
5e94833f | 1095 | service_unwatch_control_pid(s); |
034c6ed7 | 1096 | s->control_command = NULL; |
a16e1123 | 1097 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 1098 | } |
034c6ed7 | 1099 | |
50be4f4a | 1100 | if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) { |
a911bb9a | 1101 | unit_unwatch_all_pids(UNIT(s)); |
50be4f4a LP |
1102 | unit_dequeue_rewatch_pids(UNIT(s)); |
1103 | } | |
a911bb9a | 1104 | |
842129f5 | 1105 | if (!IN_SET(state, |
31cd5f63 | 1106 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
842129f5 | 1107 | SERVICE_RUNNING, SERVICE_RELOAD, |
c87700a1 | 1108 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
57614eb1 | 1109 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && |
5cc3985e | 1110 | !(state == SERVICE_DEAD && UNIT(s)->job)) |
4f2d528d LP |
1111 | service_close_socket_fd(s); |
1112 | ||
5686391b LP |
1113 | if (state != SERVICE_START) |
1114 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
1115 | ||
7596e9e1 | 1116 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
1117 | service_stop_watchdog(s); |
1118 | ||
f6023656 LP |
1119 | /* For the inactive states unit_notify() will trim the cgroup, |
1120 | * but for exit we have to do that ourselves... */ | |
2c289ea8 | 1121 | if (state == SERVICE_EXITED && !MANAGER_IS_RELOADING(UNIT(s)->manager)) |
efdb0237 | 1122 | unit_prune_cgroup(UNIT(s)); |
f6023656 | 1123 | |
e537352b | 1124 | if (old_state != state) |
f2341e0a | 1125 | log_unit_debug(UNIT(s), "Changed %s -> %s", service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 1126 | |
2ad2e41a LP |
1127 | unit_notify(UNIT(s), table[old_state], table[state], |
1128 | (s->reload_result == SERVICE_SUCCESS ? 0 : UNIT_NOTIFY_RELOAD_FAILURE) | | |
31cd5f63 AZ |
1129 | (s->will_auto_restart ? UNIT_NOTIFY_WILL_AUTO_RESTART : 0) | |
1130 | (s->result == SERVICE_SKIP_CONDITION ? UNIT_NOTIFY_SKIP_CONDITION : 0)); | |
034c6ed7 LP |
1131 | } |
1132 | ||
36c16a7c LP |
1133 | static usec_t service_coldplug_timeout(Service *s) { |
1134 | assert(s); | |
1135 | ||
1136 | switch (s->deserialized_state) { | |
1137 | ||
31cd5f63 | 1138 | case SERVICE_CONDITION: |
36c16a7c LP |
1139 | case SERVICE_START_PRE: |
1140 | case SERVICE_START: | |
1141 | case SERVICE_START_POST: | |
1142 | case SERVICE_RELOAD: | |
1143 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_start_usec); | |
1144 | ||
1145 | case SERVICE_RUNNING: | |
1146 | return usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec); | |
1147 | ||
1148 | case SERVICE_STOP: | |
36c16a7c LP |
1149 | case SERVICE_STOP_SIGTERM: |
1150 | case SERVICE_STOP_SIGKILL: | |
1151 | case SERVICE_STOP_POST: | |
1152 | case SERVICE_FINAL_SIGTERM: | |
1153 | case SERVICE_FINAL_SIGKILL: | |
1154 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_stop_usec); | |
1155 | ||
dc653bf4 JK |
1156 | case SERVICE_STOP_WATCHDOG: |
1157 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, service_timeout_abort_usec(s)); | |
1158 | ||
36c16a7c LP |
1159 | case SERVICE_AUTO_RESTART: |
1160 | return usec_add(UNIT(s)->inactive_enter_timestamp.monotonic, s->restart_usec); | |
1161 | ||
4c2f5842 | 1162 | case SERVICE_CLEANING: |
12213aed | 1163 | return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->exec_context.timeout_clean_usec); |
4c2f5842 | 1164 | |
36c16a7c LP |
1165 | default: |
1166 | return USEC_INFINITY; | |
1167 | } | |
1168 | } | |
1169 | ||
be847e82 | 1170 | static int service_coldplug(Unit *u) { |
a16e1123 LP |
1171 | Service *s = SERVICE(u); |
1172 | int r; | |
1173 | ||
1174 | assert(s); | |
1175 | assert(s->state == SERVICE_DEAD); | |
1176 | ||
930d2838 LP |
1177 | if (s->deserialized_state == s->state) |
1178 | return 0; | |
6c12b52e | 1179 | |
36c16a7c LP |
1180 | r = service_arm_timer(s, service_coldplug_timeout(s)); |
1181 | if (r < 0) | |
1182 | return r; | |
a911bb9a | 1183 | |
930d2838 LP |
1184 | if (s->main_pid > 0 && |
1185 | pid_is_unwaited(s->main_pid) && | |
9acac212 | 1186 | (IN_SET(s->deserialized_state, |
930d2838 LP |
1187 | SERVICE_START, SERVICE_START_POST, |
1188 | SERVICE_RUNNING, SERVICE_RELOAD, | |
c87700a1 | 1189 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
930d2838 | 1190 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { |
f75f613d | 1191 | r = unit_watch_pid(UNIT(s), s->main_pid, false); |
930d2838 LP |
1192 | if (r < 0) |
1193 | return r; | |
1194 | } | |
bb242b7b | 1195 | |
930d2838 LP |
1196 | if (s->control_pid > 0 && |
1197 | pid_is_unwaited(s->control_pid) && | |
1198 | IN_SET(s->deserialized_state, | |
31cd5f63 | 1199 | SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, |
930d2838 | 1200 | SERVICE_RELOAD, |
c87700a1 | 1201 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 LP |
1202 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
1203 | SERVICE_CLEANING)) { | |
f75f613d | 1204 | r = unit_watch_pid(UNIT(s), s->control_pid, false); |
930d2838 LP |
1205 | if (r < 0) |
1206 | return r; | |
a16e1123 | 1207 | } |
92c1622e | 1208 | |
4c2f5842 | 1209 | if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART, SERVICE_CLEANING)) { |
50be4f4a | 1210 | (void) unit_enqueue_rewatch_pids(u); |
29206d46 | 1211 | (void) unit_setup_dynamic_creds(u); |
e8a565cb YW |
1212 | (void) unit_setup_exec_runtime(u); |
1213 | } | |
29206d46 | 1214 | |
50be4f4a LP |
1215 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
1216 | service_start_watchdog(s); | |
1217 | ||
3ebcd323 ZJS |
1218 | if (UNIT_ISSET(s->accept_socket)) { |
1219 | Socket* socket = SOCKET(UNIT_DEREF(s->accept_socket)); | |
1220 | ||
1221 | if (socket->max_connections_per_source > 0) { | |
1222 | SocketPeer *peer; | |
1223 | ||
1224 | /* Make a best-effort attempt at bumping the connection count */ | |
1225 | if (socket_acquire_peer(socket, s->socket_fd, &peer) > 0) { | |
1226 | socket_peer_unref(s->peer); | |
1227 | s->peer = peer; | |
1228 | } | |
1229 | } | |
1230 | } | |
1231 | ||
930d2838 | 1232 | service_set_state(s, s->deserialized_state); |
a16e1123 LP |
1233 | return 0; |
1234 | } | |
1235 | ||
25b583d7 LP |
1236 | static int service_collect_fds( |
1237 | Service *s, | |
1238 | int **fds, | |
1239 | char ***fd_names, | |
1240 | size_t *n_socket_fds, | |
1241 | size_t *n_storage_fds) { | |
4c47affc | 1242 | |
8dd4c05b | 1243 | _cleanup_strv_free_ char **rfd_names = NULL; |
a354329f | 1244 | _cleanup_free_ int *rfds = NULL; |
25b583d7 | 1245 | size_t rn_socket_fds = 0, rn_storage_fds = 0; |
4c47affc | 1246 | int r; |
44d8db9e LP |
1247 | |
1248 | assert(s); | |
1249 | assert(fds); | |
8dd4c05b | 1250 | assert(fd_names); |
9b141911 | 1251 | assert(n_socket_fds); |
25b583d7 | 1252 | assert(n_storage_fds); |
44d8db9e | 1253 | |
8dd4c05b | 1254 | if (s->socket_fd >= 0) { |
6cf6bbc2 | 1255 | |
8dd4c05b | 1256 | /* Pass the per-connection socket */ |
57020a3a | 1257 | |
8dd4c05b LP |
1258 | rfds = new(int, 1); |
1259 | if (!rfds) | |
1260 | return -ENOMEM; | |
1261 | rfds[0] = s->socket_fd; | |
57020a3a | 1262 | |
bea1a013 | 1263 | rfd_names = strv_new("connection"); |
8dd4c05b LP |
1264 | if (!rfd_names) |
1265 | return -ENOMEM; | |
44d8db9e | 1266 | |
4c47affc | 1267 | rn_socket_fds = 1; |
8dd4c05b LP |
1268 | } else { |
1269 | Iterator i; | |
eef85c4a | 1270 | void *v; |
8dd4c05b | 1271 | Unit *u; |
44d8db9e | 1272 | |
8dd4c05b | 1273 | /* Pass all our configured sockets for singleton services */ |
44d8db9e | 1274 | |
eef85c4a | 1275 | HASHMAP_FOREACH_KEY(v, u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
8dd4c05b LP |
1276 | _cleanup_free_ int *cfds = NULL; |
1277 | Socket *sock; | |
1278 | int cn_fds; | |
44d8db9e | 1279 | |
8dd4c05b LP |
1280 | if (u->type != UNIT_SOCKET) |
1281 | continue; | |
44d8db9e | 1282 | |
8dd4c05b | 1283 | sock = SOCKET(u); |
a354329f | 1284 | |
8dd4c05b LP |
1285 | cn_fds = socket_collect_fds(sock, &cfds); |
1286 | if (cn_fds < 0) | |
1287 | return cn_fds; | |
44d8db9e | 1288 | |
8dd4c05b LP |
1289 | if (cn_fds <= 0) |
1290 | continue; | |
79c7626d | 1291 | |
8dd4c05b | 1292 | if (!rfds) { |
1cc6c93a | 1293 | rfds = TAKE_PTR(cfds); |
4c47affc | 1294 | rn_socket_fds = cn_fds; |
8dd4c05b LP |
1295 | } else { |
1296 | int *t; | |
1297 | ||
62d74c78 | 1298 | t = reallocarray(rfds, rn_socket_fds + cn_fds, sizeof(int)); |
8dd4c05b LP |
1299 | if (!t) |
1300 | return -ENOMEM; | |
1301 | ||
4c47affc | 1302 | memcpy(t + rn_socket_fds, cfds, cn_fds * sizeof(int)); |
8dd4c05b LP |
1303 | |
1304 | rfds = t; | |
4c47affc | 1305 | rn_socket_fds += cn_fds; |
8dd4c05b LP |
1306 | } |
1307 | ||
1308 | r = strv_extend_n(&rfd_names, socket_fdname(sock), cn_fds); | |
1309 | if (r < 0) | |
1310 | return r; | |
44d8db9e LP |
1311 | } |
1312 | } | |
1313 | ||
a354329f LP |
1314 | if (s->n_fd_store > 0) { |
1315 | ServiceFDStore *fs; | |
25b583d7 | 1316 | size_t n_fds; |
8dd4c05b | 1317 | char **nl; |
a354329f LP |
1318 | int *t; |
1319 | ||
62d74c78 | 1320 | t = reallocarray(rfds, rn_socket_fds + s->n_fd_store, sizeof(int)); |
a354329f LP |
1321 | if (!t) |
1322 | return -ENOMEM; | |
1323 | ||
1324 | rfds = t; | |
8dd4c05b | 1325 | |
62d74c78 | 1326 | nl = reallocarray(rfd_names, rn_socket_fds + s->n_fd_store + 1, sizeof(char *)); |
8dd4c05b LP |
1327 | if (!nl) |
1328 | return -ENOMEM; | |
1329 | ||
1330 | rfd_names = nl; | |
4c47affc | 1331 | n_fds = rn_socket_fds; |
8dd4c05b LP |
1332 | |
1333 | LIST_FOREACH(fd_store, fs, s->fd_store) { | |
4c47affc FB |
1334 | rfds[n_fds] = fs->fd; |
1335 | rfd_names[n_fds] = strdup(strempty(fs->fdname)); | |
1336 | if (!rfd_names[n_fds]) | |
8dd4c05b LP |
1337 | return -ENOMEM; |
1338 | ||
4c47affc FB |
1339 | rn_storage_fds++; |
1340 | n_fds++; | |
8dd4c05b LP |
1341 | } |
1342 | ||
4c47affc | 1343 | rfd_names[n_fds] = NULL; |
a354329f LP |
1344 | } |
1345 | ||
1cc6c93a YW |
1346 | *fds = TAKE_PTR(rfds); |
1347 | *fd_names = TAKE_PTR(rfd_names); | |
9b141911 | 1348 | *n_socket_fds = rn_socket_fds; |
4c47affc | 1349 | *n_storage_fds = rn_storage_fds; |
3e33402a | 1350 | |
4c47affc | 1351 | return 0; |
44d8db9e LP |
1352 | } |
1353 | ||
5686391b LP |
1354 | static int service_allocate_exec_fd_event_source( |
1355 | Service *s, | |
1356 | int fd, | |
1357 | sd_event_source **ret_event_source) { | |
1358 | ||
1359 | _cleanup_(sd_event_source_unrefp) sd_event_source *source = NULL; | |
1360 | int r; | |
1361 | ||
1362 | assert(s); | |
1363 | assert(fd >= 0); | |
1364 | assert(ret_event_source); | |
1365 | ||
1366 | r = sd_event_add_io(UNIT(s)->manager->event, &source, fd, 0, service_dispatch_exec_io, s); | |
1367 | if (r < 0) | |
1368 | return log_unit_error_errno(UNIT(s), r, "Failed to allocate exec_fd event source: %m"); | |
1369 | ||
1370 | /* This is a bit lower priority than SIGCHLD, as that carries a lot more interesting failure information */ | |
1371 | ||
1372 | r = sd_event_source_set_priority(source, SD_EVENT_PRIORITY_NORMAL-3); | |
1373 | if (r < 0) | |
1374 | return log_unit_error_errno(UNIT(s), r, "Failed to adjust priority of exec_fd event source: %m"); | |
1375 | ||
1376 | (void) sd_event_source_set_description(source, "service event_fd"); | |
1377 | ||
1378 | r = sd_event_source_set_io_fd_own(source, true); | |
1379 | if (r < 0) | |
1380 | return log_unit_error_errno(UNIT(s), r, "Failed to pass ownership of fd to event source: %m"); | |
1381 | ||
1382 | *ret_event_source = TAKE_PTR(source); | |
1383 | return 0; | |
1384 | } | |
1385 | ||
1386 | static int service_allocate_exec_fd( | |
1387 | Service *s, | |
1388 | sd_event_source **ret_event_source, | |
1389 | int* ret_exec_fd) { | |
1390 | ||
1391 | _cleanup_close_pair_ int p[2] = { -1, -1 }; | |
1392 | int r; | |
1393 | ||
1394 | assert(s); | |
1395 | assert(ret_event_source); | |
1396 | assert(ret_exec_fd); | |
1397 | ||
1398 | if (pipe2(p, O_CLOEXEC|O_NONBLOCK) < 0) | |
1399 | return log_unit_error_errno(UNIT(s), errno, "Failed to allocate exec_fd pipe: %m"); | |
1400 | ||
1401 | r = service_allocate_exec_fd_event_source(s, p[0], ret_event_source); | |
1402 | if (r < 0) | |
1403 | return r; | |
1404 | ||
1405 | p[0] = -1; | |
1406 | *ret_exec_fd = TAKE_FD(p[1]); | |
1407 | ||
1408 | return 0; | |
1409 | } | |
1410 | ||
6375bd20 JW |
1411 | static bool service_exec_needs_notify_socket(Service *s, ExecFlags flags) { |
1412 | assert(s); | |
1413 | ||
1414 | /* Notifications are accepted depending on the process and | |
1415 | * the access setting of the service: | |
1416 | * process: \ access: NONE MAIN EXEC ALL | |
1417 | * main no yes yes yes | |
1418 | * control no no yes yes | |
1419 | * other (forked) no no no yes */ | |
1420 | ||
1421 | if (flags & EXEC_IS_CONTROL) | |
1422 | /* A control process */ | |
1423 | return IN_SET(s->notify_access, NOTIFY_EXEC, NOTIFY_ALL); | |
1424 | ||
1425 | /* We only spawn main processes and control processes, so any | |
1426 | * process that is not a control process is a main process */ | |
1427 | return s->notify_access != NOTIFY_NONE; | |
1428 | } | |
1429 | ||
81a2b7ce LP |
1430 | static int service_spawn( |
1431 | Service *s, | |
1432 | ExecCommand *c, | |
21b2ce39 | 1433 | usec_t timeout, |
c39f1ce2 | 1434 | ExecFlags flags, |
81a2b7ce LP |
1435 | pid_t *_pid) { |
1436 | ||
b9c04eaf | 1437 | _cleanup_(exec_params_clear) ExecParameters exec_params = { |
c39f1ce2 LP |
1438 | .flags = flags, |
1439 | .stdin_fd = -1, | |
1440 | .stdout_fd = -1, | |
1441 | .stderr_fd = -1, | |
25b583d7 | 1442 | .exec_fd = -1, |
9fa95f85 | 1443 | }; |
3c7416b6 | 1444 | _cleanup_strv_free_ char **final_env = NULL, **our_env = NULL, **fd_names = NULL; |
5686391b | 1445 | _cleanup_(sd_event_source_unrefp) sd_event_source *exec_fd_source = NULL; |
25b583d7 | 1446 | size_t n_socket_fds = 0, n_storage_fds = 0, n_env = 0; |
5686391b | 1447 | _cleanup_close_ int exec_fd = -1; |
3c7416b6 LP |
1448 | _cleanup_free_ int *fds = NULL; |
1449 | pid_t pid; | |
8dd4c05b LP |
1450 | int r; |
1451 | ||
034c6ed7 LP |
1452 | assert(s); |
1453 | assert(c); | |
1454 | assert(_pid); | |
1455 | ||
78f93209 | 1456 | r = unit_prepare_exec(UNIT(s)); /* This realizes the cgroup, among other things */ |
3c7416b6 LP |
1457 | if (r < 0) |
1458 | return r; | |
1459 | ||
9c1a61ad LP |
1460 | if (flags & EXEC_IS_CONTROL) { |
1461 | /* If this is a control process, mask the permissions/chroot application if this is requested. */ | |
1462 | if (s->permissions_start_only) | |
1703fa41 | 1463 | exec_params.flags &= ~EXEC_APPLY_SANDBOXING; |
9c1a61ad LP |
1464 | if (s->root_directory_start_only) |
1465 | exec_params.flags &= ~EXEC_APPLY_CHROOT; | |
1466 | } | |
1467 | ||
c39f1ce2 | 1468 | if ((flags & EXEC_PASS_FDS) || |
6cf6bbc2 LP |
1469 | s->exec_context.std_input == EXEC_INPUT_SOCKET || |
1470 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1471 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1472 | ||
25b583d7 | 1473 | r = service_collect_fds(s, &fds, &fd_names, &n_socket_fds, &n_storage_fds); |
8dd4c05b | 1474 | if (r < 0) |
36c16a7c | 1475 | return r; |
6cf6bbc2 | 1476 | |
25b583d7 | 1477 | log_unit_debug(UNIT(s), "Passing %zu fds to service", n_socket_fds + n_storage_fds); |
4f2d528d | 1478 | } |
44d8db9e | 1479 | |
5686391b LP |
1480 | if (!FLAGS_SET(flags, EXEC_IS_CONTROL) && s->type == SERVICE_EXEC) { |
1481 | assert(!s->exec_fd_event_source); | |
1482 | ||
1483 | r = service_allocate_exec_fd(s, &exec_fd_source, &exec_fd); | |
1484 | if (r < 0) | |
1485 | return r; | |
1486 | } | |
1487 | ||
36c16a7c LP |
1488 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), timeout)); |
1489 | if (r < 0) | |
1490 | return r; | |
034c6ed7 | 1491 | |
dcf3c3c3 | 1492 | our_env = new0(char*, 10); |
36c16a7c LP |
1493 | if (!our_env) |
1494 | return -ENOMEM; | |
c952c6ec | 1495 | |
6375bd20 | 1496 | if (service_exec_needs_notify_socket(s, flags)) |
36c16a7c LP |
1497 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) |
1498 | return -ENOMEM; | |
c952c6ec | 1499 | |
2105e76a | 1500 | if (s->main_pid > 0) |
36c16a7c LP |
1501 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) |
1502 | return -ENOMEM; | |
2105e76a | 1503 | |
c39f1ce2 | 1504 | if (MANAGER_IS_USER(UNIT(s)->manager)) |
df0ff127 | 1505 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid_cached()) < 0) |
36c16a7c | 1506 | return -ENOMEM; |
97ae63e2 | 1507 | |
dcf3c3c3 LP |
1508 | if (s->pid_file) |
1509 | if (asprintf(our_env + n_env++, "PIDFILE=%s", s->pid_file) < 0) | |
1510 | return -ENOMEM; | |
1511 | ||
8dd4c05b | 1512 | if (s->socket_fd >= 0) { |
3b1c5241 SL |
1513 | union sockaddr_union sa; |
1514 | socklen_t salen = sizeof(sa); | |
1515 | ||
f56e7bfe LP |
1516 | /* If this is a per-connection service instance, let's set $REMOTE_ADDR and $REMOTE_PORT to something |
1517 | * useful. Note that we do this only when we are still connected at this point in time, which we might | |
1518 | * very well not be. Hence we ignore all errors when retrieving peer information (as that might result | |
1519 | * in ENOTCONN), and just use whate we can use. */ | |
f2dbd059 | 1520 | |
f56e7bfe LP |
1521 | if (getpeername(s->socket_fd, &sa.sa, &salen) >= 0 && |
1522 | IN_SET(sa.sa.sa_family, AF_INET, AF_INET6, AF_VSOCK)) { | |
3b1c5241 | 1523 | |
3b1c5241 SL |
1524 | _cleanup_free_ char *addr = NULL; |
1525 | char *t; | |
882ac6e7 | 1526 | unsigned port; |
3b1c5241 SL |
1527 | |
1528 | r = sockaddr_pretty(&sa.sa, salen, true, false, &addr); | |
1529 | if (r < 0) | |
36c16a7c | 1530 | return r; |
3b1c5241 | 1531 | |
b910cc72 | 1532 | t = strjoin("REMOTE_ADDR=", addr); |
36c16a7c LP |
1533 | if (!t) |
1534 | return -ENOMEM; | |
3b1c5241 SL |
1535 | our_env[n_env++] = t; |
1536 | ||
882ac6e7 SH |
1537 | r = sockaddr_port(&sa.sa, &port); |
1538 | if (r < 0) | |
1539 | return r; | |
3b1c5241 | 1540 | |
36c16a7c LP |
1541 | if (asprintf(&t, "REMOTE_PORT=%u", port) < 0) |
1542 | return -ENOMEM; | |
3b1c5241 SL |
1543 | our_env[n_env++] = t; |
1544 | } | |
1545 | } | |
1546 | ||
136dc4c4 LP |
1547 | if (flags & EXEC_SETENV_RESULT) { |
1548 | if (asprintf(our_env + n_env++, "SERVICE_RESULT=%s", service_result_to_string(s->result)) < 0) | |
1549 | return -ENOMEM; | |
1550 | ||
1551 | if (s->main_exec_status.pid > 0 && | |
1552 | dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { | |
1553 | if (asprintf(our_env + n_env++, "EXIT_CODE=%s", sigchld_code_to_string(s->main_exec_status.code)) < 0) | |
1554 | return -ENOMEM; | |
1555 | ||
1556 | if (s->main_exec_status.code == CLD_EXITED) | |
1557 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%i", s->main_exec_status.status); | |
1558 | else | |
1559 | r = asprintf(our_env + n_env++, "EXIT_STATUS=%s", signal_to_string(s->main_exec_status.status)); | |
1560 | if (r < 0) | |
1561 | return -ENOMEM; | |
1562 | } | |
1563 | } | |
1564 | ||
1ad6e8b3 LP |
1565 | r = unit_set_exec_params(UNIT(s), &exec_params); |
1566 | if (r < 0) | |
1567 | return r; | |
3536f49e YW |
1568 | |
1569 | final_env = strv_env_merge(2, exec_params.environment, our_env, NULL); | |
36c16a7c LP |
1570 | if (!final_env) |
1571 | return -ENOMEM; | |
c952c6ec | 1572 | |
ac647978 LP |
1573 | /* System D-Bus needs nss-systemd disabled, so that we don't deadlock */ |
1574 | SET_FLAG(exec_params.flags, EXEC_NSS_BYPASS_BUS, | |
1575 | MANAGER_IS_SYSTEM(UNIT(s)->manager) && unit_has_name(UNIT(s), SPECIAL_DBUS_SERVICE)); | |
4ad49000 | 1576 | |
b9c04eaf | 1577 | strv_free_and_replace(exec_params.environment, final_env); |
9fa95f85 | 1578 | exec_params.fds = fds; |
8dd4c05b | 1579 | exec_params.fd_names = fd_names; |
9b141911 | 1580 | exec_params.n_socket_fds = n_socket_fds; |
25b583d7 | 1581 | exec_params.n_storage_fds = n_storage_fds; |
34b3f625 | 1582 | exec_params.watchdog_usec = service_get_watchdog_usec(s); |
a34ceba6 | 1583 | exec_params.selinux_context_net = s->socket_fd_selinux_context_net; |
9fa95f85 DM |
1584 | if (s->type == SERVICE_IDLE) |
1585 | exec_params.idle_pipe = UNIT(s)->manager->idle_pipe; | |
a34ceba6 LP |
1586 | exec_params.stdin_fd = s->stdin_fd; |
1587 | exec_params.stdout_fd = s->stdout_fd; | |
1588 | exec_params.stderr_fd = s->stderr_fd; | |
5686391b | 1589 | exec_params.exec_fd = exec_fd; |
9fa95f85 | 1590 | |
f2341e0a LP |
1591 | r = exec_spawn(UNIT(s), |
1592 | c, | |
9e2f7c11 | 1593 | &s->exec_context, |
9fa95f85 | 1594 | &exec_params, |
613b411c | 1595 | s->exec_runtime, |
29206d46 | 1596 | &s->dynamic_creds, |
9e2f7c11 | 1597 | &pid); |
9e2f7c11 | 1598 | if (r < 0) |
36c16a7c | 1599 | return r; |
034c6ed7 | 1600 | |
5686391b LP |
1601 | s->exec_fd_event_source = TAKE_PTR(exec_fd_source); |
1602 | s->exec_fd_hot = false; | |
1603 | ||
f75f613d FB |
1604 | r = unit_watch_pid(UNIT(s), pid, true); |
1605 | if (r < 0) | |
36c16a7c | 1606 | return r; |
034c6ed7 LP |
1607 | |
1608 | *_pid = pid; | |
1609 | ||
5cb5a6ff | 1610 | return 0; |
034c6ed7 LP |
1611 | } |
1612 | ||
80876c20 LP |
1613 | static int main_pid_good(Service *s) { |
1614 | assert(s); | |
1615 | ||
51894d70 | 1616 | /* Returns 0 if the pid is dead, > 0 if it is good, < 0 if we don't know */ |
80876c20 | 1617 | |
fc08079e | 1618 | /* If we know the pid file, then let's just check if it is |
80876c20 | 1619 | * still valid */ |
6dfa5494 LP |
1620 | if (s->main_pid_known) { |
1621 | ||
1622 | /* If it's an alien child let's check if it is still | |
1623 | * alive ... */ | |
62220cf7 | 1624 | if (s->main_pid_alien && s->main_pid > 0) |
9f5650ae | 1625 | return pid_is_alive(s->main_pid); |
6dfa5494 LP |
1626 | |
1627 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1628 | * which we really should wait for to collect exit | |
1629 | * status and code */ | |
80876c20 | 1630 | return s->main_pid > 0; |
6dfa5494 | 1631 | } |
80876c20 LP |
1632 | |
1633 | /* We don't know the pid */ | |
1634 | return -EAGAIN; | |
1635 | } | |
1636 | ||
019be286 | 1637 | static int control_pid_good(Service *s) { |
80876c20 LP |
1638 | assert(s); |
1639 | ||
07697d7e LP |
1640 | /* Returns 0 if the control PID is dead, > 0 if it is good. We never actually return < 0 here, but in order to |
1641 | * make this function as similar as possible to main_pid_good() and cgroup_good(), we pretend that < 0 also | |
1642 | * means: we can't figure it out. */ | |
1643 | ||
80876c20 LP |
1644 | return s->control_pid > 0; |
1645 | } | |
1646 | ||
1647 | static int cgroup_good(Service *s) { | |
1648 | int r; | |
1649 | ||
1650 | assert(s); | |
1651 | ||
07697d7e LP |
1652 | /* Returns 0 if the cgroup is empty or doesn't exist, > 0 if it is exists and is populated, < 0 if we can't |
1653 | * figure it out */ | |
1654 | ||
4ad49000 LP |
1655 | if (!UNIT(s)->cgroup_path) |
1656 | return 0; | |
1657 | ||
6f883237 | 1658 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path); |
117dcc57 | 1659 | if (r < 0) |
80876c20 LP |
1660 | return r; |
1661 | ||
b13ddbbc | 1662 | return r == 0; |
80876c20 LP |
1663 | } |
1664 | ||
ebc57b89 | 1665 | static bool service_shall_restart(Service *s, const char **reason) { |
a509f0e6 LP |
1666 | assert(s); |
1667 | ||
1668 | /* Don't restart after manual stops */ | |
ebc57b89 ZJS |
1669 | if (s->forbid_restart) { |
1670 | *reason = "manual stop"; | |
a509f0e6 | 1671 | return false; |
ebc57b89 | 1672 | } |
a509f0e6 LP |
1673 | |
1674 | /* Never restart if this is configured as special exception */ | |
ebc57b89 ZJS |
1675 | if (exit_status_set_test(&s->restart_prevent_status, s->main_exec_status.code, s->main_exec_status.status)) { |
1676 | *reason = "prevented by exit status"; | |
a509f0e6 | 1677 | return false; |
ebc57b89 | 1678 | } |
a509f0e6 LP |
1679 | |
1680 | /* Restart if the exit code/status are configured as restart triggers */ | |
ebc57b89 ZJS |
1681 | if (exit_status_set_test(&s->restart_force_status, s->main_exec_status.code, s->main_exec_status.status)) { |
1682 | *reason = "forced by exit status"; | |
a509f0e6 | 1683 | return true; |
ebc57b89 | 1684 | } |
a509f0e6 | 1685 | |
ebc57b89 | 1686 | *reason = "restart setting"; |
a509f0e6 LP |
1687 | switch (s->restart) { |
1688 | ||
1689 | case SERVICE_RESTART_NO: | |
1690 | return false; | |
1691 | ||
1692 | case SERVICE_RESTART_ALWAYS: | |
1693 | return true; | |
1694 | ||
1695 | case SERVICE_RESTART_ON_SUCCESS: | |
1696 | return s->result == SERVICE_SUCCESS; | |
1697 | ||
1698 | case SERVICE_RESTART_ON_FAILURE: | |
1699 | return s->result != SERVICE_SUCCESS; | |
1700 | ||
1701 | case SERVICE_RESTART_ON_ABNORMAL: | |
1702 | return !IN_SET(s->result, SERVICE_SUCCESS, SERVICE_FAILURE_EXIT_CODE); | |
1703 | ||
1704 | case SERVICE_RESTART_ON_WATCHDOG: | |
1705 | return s->result == SERVICE_FAILURE_WATCHDOG; | |
1706 | ||
1707 | case SERVICE_RESTART_ON_ABORT: | |
1708 | return IN_SET(s->result, SERVICE_FAILURE_SIGNAL, SERVICE_FAILURE_CORE_DUMP); | |
1709 | ||
1710 | default: | |
1711 | assert_not_reached("unknown restart setting"); | |
1712 | } | |
1713 | } | |
1714 | ||
deb4e708 MK |
1715 | static bool service_will_restart(Unit *u) { |
1716 | Service *s = SERVICE(u); | |
1717 | ||
53f47dfc YW |
1718 | assert(s); |
1719 | ||
deb4e708 MK |
1720 | if (s->will_auto_restart) |
1721 | return true; | |
53f47dfc YW |
1722 | if (s->state == SERVICE_AUTO_RESTART) |
1723 | return true; | |
2ad2e41a | 1724 | |
52a12341 | 1725 | return unit_will_restart_default(u); |
53f47dfc YW |
1726 | } |
1727 | ||
f42806df | 1728 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
31cd5f63 | 1729 | ServiceState end_state; |
034c6ed7 | 1730 | int r; |
0f52f8e5 | 1731 | |
034c6ed7 LP |
1732 | assert(s); |
1733 | ||
0f52f8e5 LP |
1734 | /* If there's a stop job queued before we enter the DEAD state, we shouldn't act on Restart=, in order to not |
1735 | * undo what has already been enqueued. */ | |
1736 | if (unit_stop_pending(UNIT(s))) | |
1737 | allow_restart = false; | |
1738 | ||
a0fef983 | 1739 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1740 | s->result = f; |
034c6ed7 | 1741 | |
31cd5f63 AZ |
1742 | if (s->result == SERVICE_SUCCESS) { |
1743 | unit_log_success(UNIT(s)); | |
1744 | end_state = SERVICE_DEAD; | |
1745 | } else if (s->result == SERVICE_SKIP_CONDITION) { | |
1746 | unit_log_skip(UNIT(s), service_result_to_string(s->result)); | |
1747 | end_state = SERVICE_DEAD; | |
1748 | } else { | |
1749 | unit_log_failure(UNIT(s), service_result_to_string(s->result)); | |
1750 | end_state = SERVICE_FAILED; | |
1751 | } | |
4c425434 | 1752 | unit_warn_leftover_processes(UNIT(s), unit_log_leftover_process_stop); |
ed77d407 | 1753 | |
ebc57b89 ZJS |
1754 | if (!allow_restart) |
1755 | log_unit_debug(UNIT(s), "Service restart not allowed."); | |
1756 | else { | |
1757 | const char *reason; | |
1758 | bool shall_restart; | |
1759 | ||
1760 | shall_restart = service_shall_restart(s, &reason); | |
1761 | log_unit_debug(UNIT(s), "Service will %srestart (%s)", | |
1762 | shall_restart ? "" : "not ", | |
1763 | reason); | |
1764 | if (shall_restart) | |
1765 | s->will_auto_restart = true; | |
1766 | } | |
deb4e708 | 1767 | |
7eb2a8a1 LP |
1768 | /* Make sure service_release_resources() doesn't destroy our FD store, while we are changing through |
1769 | * SERVICE_FAILED/SERVICE_DEAD before entering into SERVICE_AUTO_RESTART. */ | |
1770 | s->n_keep_fd_store ++; | |
1771 | ||
31cd5f63 | 1772 | service_set_state(s, end_state); |
0c7f15b3 | 1773 | |
deb4e708 MK |
1774 | if (s->will_auto_restart) { |
1775 | s->will_auto_restart = false; | |
034c6ed7 | 1776 | |
36c16a7c | 1777 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
7eb2a8a1 LP |
1778 | if (r < 0) { |
1779 | s->n_keep_fd_store--; | |
034c6ed7 | 1780 | goto fail; |
7eb2a8a1 | 1781 | } |
034c6ed7 LP |
1782 | |
1783 | service_set_state(s, SERVICE_AUTO_RESTART); | |
7a0019d3 LP |
1784 | } else |
1785 | /* If we shan't restart, then flush out the restart counter. But don't do that immediately, so that the | |
1786 | * user can still introspect the counter. Do so on the next start. */ | |
1787 | s->flush_n_restarts = true; | |
034c6ed7 | 1788 | |
5238e957 | 1789 | /* 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 |
1790 | * queue, so that the fd store is possibly gc'ed again */ |
1791 | s->n_keep_fd_store--; | |
1792 | unit_add_to_gc_queue(UNIT(s)); | |
1793 | ||
f2341e0a | 1794 | /* The next restart might not be a manual stop, hence reset the flag indicating manual stops */ |
47342320 LP |
1795 | s->forbid_restart = false; |
1796 | ||
e66cf1a3 | 1797 | /* We want fresh tmpdirs in case service is started again immediately */ |
e8a565cb | 1798 | s->exec_runtime = exec_runtime_unref(s->exec_runtime, true); |
c17ec25e | 1799 | |
95939aed YW |
1800 | /* Also, remove the runtime directory */ |
1801 | unit_destroy_runtime_directory(UNIT(s), &s->exec_context); | |
e66cf1a3 | 1802 | |
00d9ef85 LP |
1803 | /* Get rid of the IPC bits of the user */ |
1804 | unit_unref_uid_gid(UNIT(s), true); | |
1805 | ||
29206d46 LP |
1806 | /* Release the user, and destroy it if we are the only remaining owner */ |
1807 | dynamic_creds_destroy(&s->dynamic_creds); | |
1808 | ||
9285c9ff LN |
1809 | /* Try to delete the pid file. At this point it will be |
1810 | * out-of-date, and some software might be confused by it, so | |
1811 | * let's remove it. */ | |
1812 | if (s->pid_file) | |
fabab190 | 1813 | (void) unlink(s->pid_file); |
9285c9ff | 1814 | |
6f765baf LP |
1815 | /* Reset TTY ownership if necessary */ |
1816 | exec_context_revert_tty(&s->exec_context); | |
1817 | ||
034c6ed7 LP |
1818 | return; |
1819 | ||
1820 | fail: | |
f2341e0a | 1821 | log_unit_warning_errno(UNIT(s), r, "Failed to run install restart timer: %m"); |
f42806df | 1822 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1823 | } |
1824 | ||
f42806df | 1825 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1826 | int r; |
1827 | assert(s); | |
1828 | ||
a0fef983 | 1829 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1830 | s->result = f; |
034c6ed7 | 1831 | |
5e94833f | 1832 | service_unwatch_control_pid(s); |
50be4f4a | 1833 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
5e94833f | 1834 | |
117dcc57 ZJS |
1835 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1836 | if (s->control_command) { | |
867b3b7d LP |
1837 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1838 | ||
ecedd90f LP |
1839 | r = service_spawn(s, |
1840 | s->control_command, | |
21b2ce39 | 1841 | s->timeout_stop_usec, |
78f93209 | 1842 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
1843 | &s->control_pid); |
1844 | if (r < 0) | |
034c6ed7 LP |
1845 | goto fail; |
1846 | ||
80876c20 LP |
1847 | service_set_state(s, SERVICE_STOP_POST); |
1848 | } else | |
ac84d1fb | 1849 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1850 | |
1851 | return; | |
1852 | ||
1853 | fail: | |
f2341e0a | 1854 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
f42806df | 1855 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1856 | } |
1857 | ||
a232ebcc | 1858 | static int state_to_kill_operation(Service *s, ServiceState state) { |
4940c0b0 LP |
1859 | switch (state) { |
1860 | ||
c87700a1 AZ |
1861 | case SERVICE_STOP_WATCHDOG: |
1862 | return KILL_WATCHDOG; | |
4940c0b0 LP |
1863 | |
1864 | case SERVICE_STOP_SIGTERM: | |
a232ebcc ZJS |
1865 | if (unit_has_job_type(UNIT(s), JOB_RESTART)) |
1866 | return KILL_RESTART; | |
1867 | _fallthrough_; | |
1868 | ||
4940c0b0 LP |
1869 | case SERVICE_FINAL_SIGTERM: |
1870 | return KILL_TERMINATE; | |
1871 | ||
1872 | case SERVICE_STOP_SIGKILL: | |
1873 | case SERVICE_FINAL_SIGKILL: | |
1874 | return KILL_KILL; | |
1875 | ||
1876 | default: | |
1877 | return _KILL_OPERATION_INVALID; | |
1878 | } | |
1879 | } | |
1880 | ||
f42806df | 1881 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1882 | int r; |
034c6ed7 LP |
1883 | |
1884 | assert(s); | |
1885 | ||
a0fef983 | 1886 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1887 | s->result = f; |
034c6ed7 | 1888 | |
50be4f4a LP |
1889 | /* Before sending any signal, make sure we track all members of this cgroup */ |
1890 | (void) unit_watch_all_pids(UNIT(s)); | |
1891 | ||
1892 | /* Also, enqueue a job that we recheck all our PIDs a bit later, given that it's likely some processes have | |
1893 | * died now */ | |
1894 | (void) unit_enqueue_rewatch_pids(UNIT(s)); | |
a911bb9a | 1895 | |
cd2086fe LP |
1896 | r = unit_kill_context( |
1897 | UNIT(s), | |
1898 | &s->kill_context, | |
a232ebcc | 1899 | state_to_kill_operation(s, state), |
cd2086fe LP |
1900 | s->main_pid, |
1901 | s->control_pid, | |
1902 | s->main_pid_alien); | |
1903 | if (r < 0) | |
1904 | goto fail; | |
034c6ed7 | 1905 | |
cd2086fe | 1906 | if (r > 0) { |
dc653bf4 JK |
1907 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), |
1908 | state == SERVICE_STOP_WATCHDOG ? service_timeout_abort_usec(s) : s->timeout_stop_usec)); | |
36c16a7c LP |
1909 | if (r < 0) |
1910 | goto fail; | |
d6ea93e3 | 1911 | |
80876c20 | 1912 | service_set_state(s, state); |
c87700a1 | 1913 | } else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM) && s->kill_context.send_sigkill) |
ac84d1fb | 1914 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); |
c87700a1 | 1915 | else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1916 | service_enter_stop_post(s, SERVICE_SUCCESS); |
1db0db4b | 1917 | else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill) |
ac84d1fb | 1918 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); |
80876c20 | 1919 | else |
f42806df | 1920 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1921 | |
1922 | return; | |
1923 | ||
1924 | fail: | |
f2341e0a | 1925 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 | 1926 | |
c87700a1 | 1927 | if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) |
f42806df | 1928 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1929 | else |
f42806df | 1930 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1931 | } |
1932 | ||
308d72dc LP |
1933 | static void service_enter_stop_by_notify(Service *s) { |
1934 | assert(s); | |
1935 | ||
50be4f4a | 1936 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
308d72dc | 1937 | |
36c16a7c | 1938 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_stop_usec)); |
308d72dc | 1939 | |
6041a7ee MS |
1940 | /* The service told us it's stopping, so it's as if we SIGTERM'd it. */ |
1941 | service_set_state(s, SERVICE_STOP_SIGTERM); | |
308d72dc LP |
1942 | } |
1943 | ||
f42806df | 1944 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1945 | int r; |
5925dd3c | 1946 | |
034c6ed7 LP |
1947 | assert(s); |
1948 | ||
a0fef983 | 1949 | if (s->result == SERVICE_SUCCESS) |
f42806df | 1950 | s->result = f; |
034c6ed7 | 1951 | |
5e94833f | 1952 | service_unwatch_control_pid(s); |
50be4f4a | 1953 | (void) unit_enqueue_rewatch_pids(UNIT(s)); |
5e94833f | 1954 | |
117dcc57 ZJS |
1955 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1956 | if (s->control_command) { | |
867b3b7d LP |
1957 | s->control_command_id = SERVICE_EXEC_STOP; |
1958 | ||
ecedd90f LP |
1959 | r = service_spawn(s, |
1960 | s->control_command, | |
21b2ce39 | 1961 | s->timeout_stop_usec, |
78f93209 | 1962 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_SETENV_RESULT|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
1963 | &s->control_pid); |
1964 | if (r < 0) | |
034c6ed7 LP |
1965 | goto fail; |
1966 | ||
80876c20 LP |
1967 | service_set_state(s, SERVICE_STOP); |
1968 | } else | |
f42806df | 1969 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1970 | |
1971 | return; | |
1972 | ||
1973 | fail: | |
f2341e0a | 1974 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop' task: %m"); |
f42806df | 1975 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1976 | } |
1977 | ||
957c3cf9 LP |
1978 | static bool service_good(Service *s) { |
1979 | int main_pid_ok; | |
1980 | assert(s); | |
1981 | ||
1982 | if (s->type == SERVICE_DBUS && !s->bus_name_good) | |
1983 | return false; | |
1984 | ||
1985 | main_pid_ok = main_pid_good(s); | |
1986 | if (main_pid_ok > 0) /* It's alive */ | |
1987 | return true; | |
1988 | if (main_pid_ok == 0) /* It's dead */ | |
1989 | return false; | |
1990 | ||
1991 | /* OK, we don't know anything about the main PID, maybe | |
1992 | * because there is none. Let's check the control group | |
1993 | * instead. */ | |
1994 | ||
1995 | return cgroup_good(s) != 0; | |
1996 | } | |
1997 | ||
f42806df | 1998 | static void service_enter_running(Service *s, ServiceResult f) { |
80876c20 LP |
1999 | assert(s); |
2000 | ||
a0fef983 | 2001 | if (s->result == SERVICE_SUCCESS) |
f42806df | 2002 | s->result = f; |
80876c20 | 2003 | |
089b64d5 LP |
2004 | service_unwatch_control_pid(s); |
2005 | ||
ec5b1452 LP |
2006 | if (s->result != SERVICE_SUCCESS) |
2007 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
2008 | else if (service_good(s)) { | |
308d72dc | 2009 | |
ec5b1452 | 2010 | /* If there are any queued up sd_notify() notifications, process them now */ |
308d72dc LP |
2011 | if (s->notify_state == NOTIFY_RELOADING) |
2012 | service_enter_reload_by_notify(s); | |
2013 | else if (s->notify_state == NOTIFY_STOPPING) | |
2014 | service_enter_stop_by_notify(s); | |
36c16a7c | 2015 | else { |
308d72dc | 2016 | service_set_state(s, SERVICE_RUNNING); |
36c16a7c LP |
2017 | service_arm_timer(s, usec_add(UNIT(s)->active_enter_timestamp.monotonic, s->runtime_max_usec)); |
2018 | } | |
308d72dc | 2019 | |
ec5b1452 | 2020 | } else if (s->remain_after_exit) |
80876c20 LP |
2021 | service_set_state(s, SERVICE_EXITED); |
2022 | else | |
f42806df | 2023 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
2024 | } |
2025 | ||
034c6ed7 LP |
2026 | static void service_enter_start_post(Service *s) { |
2027 | int r; | |
2028 | assert(s); | |
2029 | ||
5e94833f | 2030 | service_unwatch_control_pid(s); |
842129f5 | 2031 | service_reset_watchdog(s); |
bb242b7b | 2032 | |
117dcc57 ZJS |
2033 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
2034 | if (s->control_command) { | |
867b3b7d LP |
2035 | s->control_command_id = SERVICE_EXEC_START_POST; |
2036 | ||
ecedd90f LP |
2037 | r = service_spawn(s, |
2038 | s->control_command, | |
21b2ce39 | 2039 | s->timeout_start_usec, |
78f93209 | 2040 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
2041 | &s->control_pid); |
2042 | if (r < 0) | |
034c6ed7 LP |
2043 | goto fail; |
2044 | ||
80876c20 LP |
2045 | service_set_state(s, SERVICE_START_POST); |
2046 | } else | |
f42806df | 2047 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2048 | |
2049 | return; | |
2050 | ||
2051 | fail: | |
f2341e0a | 2052 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
f42806df | 2053 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2054 | } |
2055 | ||
e9a4f676 | 2056 | static void service_kill_control_process(Service *s) { |
a6951a50 | 2057 | int r; |
4ad49000 | 2058 | |
a6951a50 LP |
2059 | assert(s); |
2060 | ||
e9a4f676 LP |
2061 | if (s->control_pid <= 0) |
2062 | return; | |
4ad49000 | 2063 | |
e9a4f676 LP |
2064 | r = kill_and_sigcont(s->control_pid, SIGKILL); |
2065 | if (r < 0) { | |
2066 | _cleanup_free_ char *comm = NULL; | |
a6951a50 | 2067 | |
e9a4f676 | 2068 | (void) get_process_comm(s->control_pid, &comm); |
a6951a50 | 2069 | |
e9a4f676 LP |
2070 | log_unit_debug_errno(UNIT(s), r, "Failed to kill control process " PID_FMT " (%s), ignoring: %m", |
2071 | s->control_pid, strna(comm)); | |
a6951a50 | 2072 | } |
4ad49000 LP |
2073 | } |
2074 | ||
c53d2d54 DB |
2075 | static int service_adverse_to_leftover_processes(Service *s) { |
2076 | assert(s); | |
2077 | ||
2078 | /* KillMode=mixed and control group are used to indicate that all process should be killed off. | |
4c425434 LP |
2079 | * SendSIGKILL= is used for services that require a clean shutdown. These are typically database |
2080 | * service where a SigKilled process would result in a lengthy recovery and who's shutdown or startup | |
2081 | * time is quite variable (so Timeout settings aren't of use). | |
c53d2d54 DB |
2082 | * |
2083 | * Here we take these two factors and refuse to start a service if there are existing processes | |
2084 | * within a control group. Databases, while generally having some protection against multiple | |
4c425434 | 2085 | * instances running, lets not stress the rigor of these. Also ExecStartPre= parts of the service |
c53d2d54 | 2086 | * aren't as rigoriously written to protect aganst against multiple use. */ |
4c425434 LP |
2087 | |
2088 | if (unit_warn_leftover_processes(UNIT(s), unit_log_leftover_process_start) > 0 && | |
c53d2d54 | 2089 | IN_SET(s->kill_context.kill_mode, KILL_MIXED, KILL_CONTROL_GROUP) && |
569554d9 ZJS |
2090 | !s->kill_context.send_sigkill) |
2091 | return log_unit_error_errno(UNIT(s), SYNTHETIC_ERRNO(EBUSY), | |
2092 | "Will not start SendSIGKILL=no service of type KillMode=control-group or mixed while processes exist"); | |
2093 | ||
c53d2d54 DB |
2094 | return 0; |
2095 | } | |
2096 | ||
034c6ed7 | 2097 | static void service_enter_start(Service *s) { |
4ad49000 | 2098 | ExecCommand *c; |
36c16a7c | 2099 | usec_t timeout; |
034c6ed7 LP |
2100 | pid_t pid; |
2101 | int r; | |
2102 | ||
2103 | assert(s); | |
2104 | ||
41efeaec LP |
2105 | service_unwatch_control_pid(s); |
2106 | service_unwatch_main_pid(s); | |
80876c20 | 2107 | |
c53d2d54 DB |
2108 | r = service_adverse_to_leftover_processes(s); |
2109 | if (r < 0) | |
2110 | goto fail; | |
a4634b21 | 2111 | |
867b3b7d LP |
2112 | if (s->type == SERVICE_FORKING) { |
2113 | s->control_command_id = SERVICE_EXEC_START; | |
2114 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
2115 | ||
2116 | s->main_command = NULL; | |
2117 | } else { | |
2118 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2119 | s->control_command = NULL; | |
2120 | ||
2121 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
2122 | } | |
34e9ba66 | 2123 | |
96fb8242 | 2124 | if (!c) { |
47fffb35 LP |
2125 | if (s->type != SERVICE_ONESHOT) { |
2126 | /* There's no command line configured for the main command? Hmm, that is strange. This can only | |
2127 | * happen if the configuration changes at runtime. In this case, let's enter a failure | |
2128 | * state. */ | |
b8b846d7 | 2129 | log_unit_error(UNIT(s), "There's no 'start' task anymore we could start."); |
47fffb35 LP |
2130 | r = -ENXIO; |
2131 | goto fail; | |
2132 | } | |
2133 | ||
ef5ae8e7 ZJS |
2134 | /* We force a fake state transition here. Otherwise, the unit would go directly from |
2135 | * SERVICE_DEAD to SERVICE_DEAD without SERVICE_ACTIVATING or SERVICE_ACTIVE | |
5238e957 | 2136 | * in between. This way we can later trigger actions that depend on the state |
ef5ae8e7 ZJS |
2137 | * transition, including SuccessAction=. */ |
2138 | service_set_state(s, SERVICE_START); | |
2139 | ||
96fb8242 LP |
2140 | service_enter_start_post(s); |
2141 | return; | |
2142 | } | |
2143 | ||
36c16a7c LP |
2144 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) |
2145 | /* For simple + idle this is the main process. We don't apply any timeout here, but | |
2146 | * service_enter_running() will later apply the .runtime_max_usec timeout. */ | |
2147 | timeout = USEC_INFINITY; | |
2148 | else | |
2149 | timeout = s->timeout_start_usec; | |
2150 | ||
ecedd90f LP |
2151 | r = service_spawn(s, |
2152 | c, | |
36c16a7c | 2153 | timeout, |
1703fa41 | 2154 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
2155 | &pid); |
2156 | if (r < 0) | |
034c6ed7 LP |
2157 | goto fail; |
2158 | ||
36c16a7c | 2159 | if (IN_SET(s->type, SERVICE_SIMPLE, SERVICE_IDLE)) { |
034c6ed7 LP |
2160 | /* For simple services we immediately start |
2161 | * the START_POST binaries. */ | |
2162 | ||
5925dd3c | 2163 | service_set_main_pid(s, pid); |
034c6ed7 LP |
2164 | service_enter_start_post(s); |
2165 | ||
2166 | } else if (s->type == SERVICE_FORKING) { | |
2167 | ||
2168 | /* For forking services we wait until the start | |
2169 | * process exited. */ | |
2170 | ||
e55224ca | 2171 | s->control_pid = pid; |
80876c20 LP |
2172 | service_set_state(s, SERVICE_START); |
2173 | ||
5686391b | 2174 | } else if (IN_SET(s->type, SERVICE_ONESHOT, SERVICE_DBUS, SERVICE_NOTIFY, SERVICE_EXEC)) { |
7d55e835 | 2175 | |
5686391b | 2176 | /* For oneshot services we wait until the start process exited, too, but it is our main process. */ |
7d55e835 | 2177 | |
5686391b LP |
2178 | /* For D-Bus services we know the main pid right away, but wait for the bus name to appear on the |
2179 | * bus. 'notify' and 'exec' services are similar. */ | |
05e343b7 | 2180 | |
5925dd3c | 2181 | service_set_main_pid(s, pid); |
80876c20 | 2182 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
2183 | } else |
2184 | assert_not_reached("Unknown service type"); | |
2185 | ||
2186 | return; | |
2187 | ||
2188 | fail: | |
f2341e0a | 2189 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start' task: %m"); |
c3fda31d | 2190 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2191 | } |
2192 | ||
2193 | static void service_enter_start_pre(Service *s) { | |
2194 | int r; | |
2195 | ||
2196 | assert(s); | |
2197 | ||
5e94833f LP |
2198 | service_unwatch_control_pid(s); |
2199 | ||
117dcc57 ZJS |
2200 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
2201 | if (s->control_command) { | |
8f53a7b8 | 2202 | |
c53d2d54 DB |
2203 | r = service_adverse_to_leftover_processes(s); |
2204 | if (r < 0) | |
2205 | goto fail; | |
a4634b21 | 2206 | |
867b3b7d LP |
2207 | s->control_command_id = SERVICE_EXEC_START_PRE; |
2208 | ||
ecedd90f LP |
2209 | r = service_spawn(s, |
2210 | s->control_command, | |
21b2ce39 | 2211 | s->timeout_start_usec, |
1703fa41 | 2212 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, |
ecedd90f LP |
2213 | &s->control_pid); |
2214 | if (r < 0) | |
034c6ed7 LP |
2215 | goto fail; |
2216 | ||
80876c20 LP |
2217 | service_set_state(s, SERVICE_START_PRE); |
2218 | } else | |
034c6ed7 LP |
2219 | service_enter_start(s); |
2220 | ||
2221 | return; | |
2222 | ||
2223 | fail: | |
f2341e0a | 2224 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
f42806df | 2225 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2226 | } |
2227 | ||
31cd5f63 AZ |
2228 | static void service_enter_condition(Service *s) { |
2229 | int r; | |
2230 | ||
2231 | assert(s); | |
2232 | ||
2233 | service_unwatch_control_pid(s); | |
2234 | ||
2235 | s->control_command = s->exec_command[SERVICE_EXEC_CONDITION]; | |
2236 | if (s->control_command) { | |
2237 | ||
2238 | r = service_adverse_to_leftover_processes(s); | |
2239 | if (r < 0) | |
2240 | goto fail; | |
2241 | ||
2242 | s->control_command_id = SERVICE_EXEC_CONDITION; | |
2243 | ||
2244 | r = service_spawn(s, | |
2245 | s->control_command, | |
2246 | s->timeout_start_usec, | |
2247 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN, | |
2248 | &s->control_pid); | |
2249 | ||
2250 | if (r < 0) | |
2251 | goto fail; | |
2252 | ||
2253 | service_set_state(s, SERVICE_CONDITION); | |
2254 | } else | |
2255 | service_enter_start_pre(s); | |
2256 | ||
2257 | return; | |
2258 | ||
2259 | fail: | |
2260 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'exec-condition' task: %m"); | |
2261 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); | |
2262 | } | |
2263 | ||
034c6ed7 | 2264 | static void service_enter_restart(Service *s) { |
4afd3348 | 2265 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 2266 | int r; |
398ef8ba | 2267 | |
034c6ed7 LP |
2268 | assert(s); |
2269 | ||
28a2dfe8 | 2270 | if (unit_has_job_type(UNIT(s), JOB_STOP)) { |
a8bb2e65 | 2271 | /* Don't restart things if we are going down anyway */ |
f2341e0a | 2272 | log_unit_info(UNIT(s), "Stop job pending for unit, delaying automatic restart."); |
2edfa366 | 2273 | |
36c16a7c | 2274 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->restart_usec)); |
a8bb2e65 | 2275 | if (r < 0) |
2edfa366 | 2276 | goto fail; |
feae8adb DW |
2277 | |
2278 | return; | |
2edfa366 LP |
2279 | } |
2280 | ||
48bb5876 DW |
2281 | /* Any units that are bound to this service must also be |
2282 | * restarted. We use JOB_RESTART (instead of the more obvious | |
2283 | * JOB_START) here so that those dependency jobs will be added | |
2284 | * as well. */ | |
50cbaba4 | 2285 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_REPLACE, NULL, &error, NULL); |
48bb5876 | 2286 | if (r < 0) |
034c6ed7 LP |
2287 | goto fail; |
2288 | ||
7a0019d3 LP |
2289 | /* Count the jobs we enqueue for restarting. This counter is maintained as long as the unit isn't fully |
2290 | * stopped, i.e. as long as it remains up or remains in auto-start states. The use can reset the counter | |
2291 | * explicitly however via the usual "systemctl reset-failure" logic. */ | |
2292 | s->n_restarts ++; | |
2293 | s->flush_n_restarts = false; | |
2294 | ||
2295 | log_struct(LOG_INFO, | |
2296 | "MESSAGE_ID=" SD_MESSAGE_UNIT_RESTART_SCHEDULED_STR, | |
2297 | LOG_UNIT_ID(UNIT(s)), | |
f1c50bec | 2298 | LOG_UNIT_INVOCATION_ID(UNIT(s)), |
7a0019d3 | 2299 | LOG_UNIT_MESSAGE(UNIT(s), "Scheduled restart job, restart counter is at %u.", s->n_restarts), |
a1230ff9 | 2300 | "N_RESTARTS=%u", s->n_restarts); |
7a0019d3 LP |
2301 | |
2302 | /* Notify clients about changed restart counter */ | |
2303 | unit_add_to_dbus_queue(UNIT(s)); | |
2304 | ||
a8bb2e65 LP |
2305 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
2306 | * it will be canceled as part of the service_stop() call that | |
2307 | * is executed as part of JOB_RESTART. */ | |
2308 | ||
034c6ed7 LP |
2309 | return; |
2310 | ||
2311 | fail: | |
f2341e0a | 2312 | log_unit_warning(UNIT(s), "Failed to schedule restart job: %s", bus_error_message(&error, -r)); |
f42806df | 2313 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
2314 | } |
2315 | ||
308d72dc | 2316 | static void service_enter_reload_by_notify(Service *s) { |
15d167f8 JW |
2317 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
2318 | int r; | |
2319 | ||
308d72dc LP |
2320 | assert(s); |
2321 | ||
36c16a7c | 2322 | service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->timeout_start_usec)); |
308d72dc | 2323 | service_set_state(s, SERVICE_RELOAD); |
15d167f8 JW |
2324 | |
2325 | /* service_enter_reload_by_notify is never called during a reload, thus no loops are possible. */ | |
2326 | r = manager_propagate_reload(UNIT(s)->manager, UNIT(s), JOB_FAIL, &error); | |
2327 | if (r < 0) | |
2328 | log_unit_warning(UNIT(s), "Failed to schedule propagation of reload: %s", bus_error_message(&error, -r)); | |
308d72dc LP |
2329 | } |
2330 | ||
034c6ed7 LP |
2331 | static void service_enter_reload(Service *s) { |
2332 | int r; | |
2333 | ||
2334 | assert(s); | |
2335 | ||
5e94833f | 2336 | service_unwatch_control_pid(s); |
95c906ae | 2337 | s->reload_result = SERVICE_SUCCESS; |
5e94833f | 2338 | |
117dcc57 ZJS |
2339 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
2340 | if (s->control_command) { | |
867b3b7d LP |
2341 | s->control_command_id = SERVICE_EXEC_RELOAD; |
2342 | ||
ecedd90f LP |
2343 | r = service_spawn(s, |
2344 | s->control_command, | |
21b2ce39 | 2345 | s->timeout_start_usec, |
78f93209 | 2346 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_CONTROL_CGROUP, |
ecedd90f LP |
2347 | &s->control_pid); |
2348 | if (r < 0) | |
034c6ed7 LP |
2349 | goto fail; |
2350 | ||
80876c20 LP |
2351 | service_set_state(s, SERVICE_RELOAD); |
2352 | } else | |
f42806df | 2353 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2354 | |
2355 | return; | |
2356 | ||
2357 | fail: | |
f2341e0a | 2358 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'reload' task: %m"); |
f42806df LP |
2359 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2360 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2361 | } |
2362 | ||
f42806df | 2363 | static void service_run_next_control(Service *s) { |
36c16a7c | 2364 | usec_t timeout; |
034c6ed7 LP |
2365 | int r; |
2366 | ||
2367 | assert(s); | |
2368 | assert(s->control_command); | |
2369 | assert(s->control_command->command_next); | |
2370 | ||
34e9ba66 | 2371 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2372 | |
34e9ba66 | 2373 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2374 | service_unwatch_control_pid(s); |
2375 | ||
31cd5f63 | 2376 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
36c16a7c LP |
2377 | timeout = s->timeout_start_usec; |
2378 | else | |
2379 | timeout = s->timeout_stop_usec; | |
2380 | ||
ecedd90f LP |
2381 | r = service_spawn(s, |
2382 | s->control_command, | |
36c16a7c | 2383 | timeout, |
1703fa41 | 2384 | EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL| |
31cd5f63 | 2385 | (IN_SET(s->control_command_id, SERVICE_EXEC_CONDITION, SERVICE_EXEC_START_PRE, SERVICE_EXEC_STOP_POST) ? EXEC_APPLY_TTY_STDIN : 0)| |
78f93209 LP |
2386 | (IN_SET(s->control_command_id, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST) ? EXEC_SETENV_RESULT : 0)| |
2387 | (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 |
2388 | &s->control_pid); |
2389 | if (r < 0) | |
034c6ed7 LP |
2390 | goto fail; |
2391 | ||
2392 | return; | |
2393 | ||
2394 | fail: | |
f2341e0a | 2395 | log_unit_warning_errno(UNIT(s), r, "Failed to run next control task: %m"); |
034c6ed7 | 2396 | |
31cd5f63 | 2397 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START_POST, SERVICE_STOP)) |
f42806df | 2398 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2399 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2400 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2401 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2402 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2403 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2404 | } else |
f42806df | 2405 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2406 | } |
2407 | ||
f42806df | 2408 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2409 | pid_t pid; |
2410 | int r; | |
2411 | ||
2412 | assert(s); | |
867b3b7d LP |
2413 | assert(s->main_command); |
2414 | assert(s->main_command->command_next); | |
2415 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2416 | |
867b3b7d | 2417 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2418 | service_unwatch_main_pid(s); |
2419 | ||
ecedd90f LP |
2420 | r = service_spawn(s, |
2421 | s->main_command, | |
21b2ce39 | 2422 | s->timeout_start_usec, |
1703fa41 | 2423 | EXEC_PASS_FDS|EXEC_APPLY_SANDBOXING|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG, |
ecedd90f LP |
2424 | &pid); |
2425 | if (r < 0) | |
34e9ba66 LP |
2426 | goto fail; |
2427 | ||
2428 | service_set_main_pid(s, pid); | |
2429 | ||
2430 | return; | |
2431 | ||
2432 | fail: | |
f2341e0a | 2433 | log_unit_warning_errno(UNIT(s), r, "Failed to run next main task: %m"); |
f42806df | 2434 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2435 | } |
2436 | ||
87f0e418 LP |
2437 | static int service_start(Unit *u) { |
2438 | Service *s = SERVICE(u); | |
07299350 | 2439 | int r; |
5cb5a6ff LP |
2440 | |
2441 | assert(s); | |
2442 | ||
034c6ed7 LP |
2443 | /* We cannot fulfill this request right now, try again later |
2444 | * please! */ | |
a00973af | 2445 | if (IN_SET(s->state, |
c87700a1 | 2446 | SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
4c2f5842 | 2447 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, SERVICE_CLEANING)) |
5cb5a6ff LP |
2448 | return -EAGAIN; |
2449 | ||
034c6ed7 | 2450 | /* Already on it! */ |
31cd5f63 | 2451 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST)) |
034c6ed7 LP |
2452 | return 0; |
2453 | ||
2e9d6c12 | 2454 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2455 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2456 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2457 | * service should be manually restarted, not started. We |
2458 | * simply return EAGAIN here, so that any start jobs stay | |
2459 | * queued, and assume that the auto restart timer will | |
2460 | * eventually trigger the restart. */ | |
2461 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2462 | return -EAGAIN; |
2e9d6c12 | 2463 | |
a00973af | 2464 | assert(IN_SET(s->state, SERVICE_DEAD, SERVICE_FAILED)); |
5cb5a6ff | 2465 | |
07299350 | 2466 | /* Make sure we don't enter a busy loop of some kind. */ |
97a3f4ee | 2467 | r = unit_test_start_limit(u); |
07299350 LP |
2468 | if (r < 0) { |
2469 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT_HIT, false); | |
2470 | return r; | |
2471 | } | |
2472 | ||
4b58153d LP |
2473 | r = unit_acquire_invocation_id(u); |
2474 | if (r < 0) | |
2475 | return r; | |
2476 | ||
f42806df LP |
2477 | s->result = SERVICE_SUCCESS; |
2478 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2479 | s->main_pid_known = false; |
6dfa5494 | 2480 | s->main_pid_alien = false; |
47342320 | 2481 | s->forbid_restart = false; |
3c7416b6 | 2482 | |
a1e58e8e | 2483 | s->status_text = mfree(s->status_text); |
8cfdb077 LP |
2484 | s->status_errno = 0; |
2485 | ||
308d72dc LP |
2486 | s->notify_state = NOTIFY_UNKNOWN; |
2487 | ||
aa8c4bbf | 2488 | s->watchdog_original_usec = s->watchdog_usec; |
2787d83c | 2489 | s->watchdog_override_enable = false; |
aa8c4bbf | 2490 | s->watchdog_override_usec = USEC_INFINITY; |
2787d83c | 2491 | |
6a1d4d9f LP |
2492 | exec_command_reset_status_list_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
2493 | exec_status_reset(&s->main_exec_status); | |
2494 | ||
7a0019d3 LP |
2495 | /* This is not an automatic restart? Flush the restart counter then */ |
2496 | if (s->flush_n_restarts) { | |
2497 | s->n_restarts = 0; | |
2498 | s->flush_n_restarts = false; | |
2499 | } | |
2500 | ||
6a1d4d9f LP |
2501 | u->reset_accounting = true; |
2502 | ||
31cd5f63 | 2503 | service_enter_condition(s); |
82a2b6bb | 2504 | return 1; |
5cb5a6ff LP |
2505 | } |
2506 | ||
87f0e418 LP |
2507 | static int service_stop(Unit *u) { |
2508 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2509 | |
2510 | assert(s); | |
2511 | ||
a509f0e6 | 2512 | /* Don't create restart jobs from manual stops. */ |
47342320 | 2513 | s->forbid_restart = true; |
034c6ed7 | 2514 | |
e537352b | 2515 | /* Already on it */ |
a00973af | 2516 | if (IN_SET(s->state, |
dc653bf4 | 2517 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, |
a00973af | 2518 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) |
e537352b LP |
2519 | return 0; |
2520 | ||
f0c7b229 | 2521 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2522 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2523 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2524 | return 0; |
2525 | } | |
2526 | ||
3f6c78dc LP |
2527 | /* If there's already something running we go directly into |
2528 | * kill mode. */ | |
31cd5f63 | 2529 | if (IN_SET(s->state, SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD, SERVICE_STOP_WATCHDOG)) { |
f42806df | 2530 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2531 | return 0; |
2532 | } | |
5cb5a6ff | 2533 | |
4c2f5842 LP |
2534 | /* If we are currently cleaning, then abort it, brutally. */ |
2535 | if (s->state == SERVICE_CLEANING) { | |
2536 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); | |
2537 | return 0; | |
2538 | } | |
2539 | ||
a00973af | 2540 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
3a762661 | 2541 | |
f42806df | 2542 | service_enter_stop(s, SERVICE_SUCCESS); |
82a2b6bb | 2543 | return 1; |
5cb5a6ff LP |
2544 | } |
2545 | ||
87f0e418 LP |
2546 | static int service_reload(Unit *u) { |
2547 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2548 | |
2549 | assert(s); | |
2550 | ||
3742095b | 2551 | assert(IN_SET(s->state, SERVICE_RUNNING, SERVICE_EXITED)); |
034c6ed7 LP |
2552 | |
2553 | service_enter_reload(s); | |
2d018ae2 | 2554 | return 1; |
5cb5a6ff LP |
2555 | } |
2556 | ||
44a6b1b6 | 2557 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2558 | Service *s = SERVICE(u); |
034c6ed7 LP |
2559 | |
2560 | assert(s); | |
2561 | ||
2562 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2563 | } | |
2564 | ||
e266c068 MS |
2565 | static unsigned service_exec_command_index(Unit *u, ServiceExecCommand id, ExecCommand *current) { |
2566 | Service *s = SERVICE(u); | |
2567 | unsigned idx = 0; | |
2568 | ExecCommand *first, *c; | |
2569 | ||
2570 | assert(s); | |
5b99bd5f LP |
2571 | assert(id >= 0); |
2572 | assert(id < _SERVICE_EXEC_COMMAND_MAX); | |
e266c068 MS |
2573 | |
2574 | first = s->exec_command[id]; | |
2575 | ||
2576 | /* Figure out where we are in the list by walking back to the beginning */ | |
2577 | for (c = current; c != first; c = c->command_prev) | |
2578 | idx++; | |
2579 | ||
2580 | return idx; | |
2581 | } | |
2582 | ||
2583 | static int service_serialize_exec_command(Unit *u, FILE *f, ExecCommand *command) { | |
d68c645b LP |
2584 | _cleanup_free_ char *args = NULL, *p = NULL; |
2585 | size_t allocated = 0, length = 0; | |
e266c068 | 2586 | Service *s = SERVICE(u); |
d68c645b | 2587 | const char *type, *key; |
e266c068 MS |
2588 | ServiceExecCommand id; |
2589 | unsigned idx; | |
e266c068 | 2590 | char **arg; |
e266c068 MS |
2591 | |
2592 | assert(s); | |
2593 | assert(f); | |
2594 | ||
2595 | if (!command) | |
2596 | return 0; | |
2597 | ||
2598 | if (command == s->control_command) { | |
2599 | type = "control"; | |
2600 | id = s->control_command_id; | |
2601 | } else { | |
2602 | type = "main"; | |
2603 | id = SERVICE_EXEC_START; | |
2604 | } | |
2605 | ||
2606 | idx = service_exec_command_index(u, id, command); | |
2607 | ||
2608 | STRV_FOREACH(arg, command->argv) { | |
e266c068 | 2609 | _cleanup_free_ char *e = NULL; |
d68c645b | 2610 | size_t n; |
e266c068 | 2611 | |
d68c645b | 2612 | e = cescape(*arg); |
e266c068 | 2613 | if (!e) |
d68c645b | 2614 | return log_oom(); |
e266c068 MS |
2615 | |
2616 | n = strlen(e); | |
334c0979 | 2617 | if (!GREEDY_REALLOC(args, allocated, length + 2 + n + 2)) |
d68c645b | 2618 | return log_oom(); |
e266c068 MS |
2619 | |
2620 | if (length > 0) | |
2621 | args[length++] = ' '; | |
2622 | ||
334c0979 | 2623 | args[length++] = '"'; |
e266c068 MS |
2624 | memcpy(args + length, e, n); |
2625 | length += n; | |
334c0979 | 2626 | args[length++] = '"'; |
e266c068 MS |
2627 | } |
2628 | ||
2629 | if (!GREEDY_REALLOC(args, allocated, length + 1)) | |
d68c645b LP |
2630 | return log_oom(); |
2631 | ||
e266c068 MS |
2632 | args[length++] = 0; |
2633 | ||
d68c645b | 2634 | p = cescape(command->path); |
e266c068 | 2635 | if (!p) |
5b99bd5f | 2636 | return log_oom(); |
e266c068 | 2637 | |
d68c645b | 2638 | key = strjoina(type, "-command"); |
5b99bd5f LP |
2639 | (void) serialize_item_format(f, key, "%s %u %s %s", service_exec_command_to_string(id), idx, p, args); |
2640 | ||
2641 | return 0; | |
e266c068 MS |
2642 | } |
2643 | ||
a16e1123 LP |
2644 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2645 | Service *s = SERVICE(u); | |
2339fc93 | 2646 | ServiceFDStore *fs; |
a34ceba6 | 2647 | int r; |
a16e1123 LP |
2648 | |
2649 | assert(u); | |
2650 | assert(f); | |
2651 | assert(fds); | |
2652 | ||
d68c645b LP |
2653 | (void) serialize_item(f, "state", service_state_to_string(s->state)); |
2654 | (void) serialize_item(f, "result", service_result_to_string(s->result)); | |
2655 | (void) serialize_item(f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2656 | |
2657 | if (s->control_pid > 0) | |
d68c645b | 2658 | (void) serialize_item_format(f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 | 2659 | |
5925dd3c | 2660 | if (s->main_pid_known && s->main_pid > 0) |
d68c645b | 2661 | (void) serialize_item_format(f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 | 2662 | |
d68c645b LP |
2663 | (void) serialize_bool(f, "main-pid-known", s->main_pid_known); |
2664 | (void) serialize_bool(f, "bus-name-good", s->bus_name_good); | |
2665 | (void) serialize_bool(f, "bus-name-owner", s->bus_name_owner); | |
a16e1123 | 2666 | |
d68c645b LP |
2667 | (void) serialize_item_format(f, "n-restarts", "%u", s->n_restarts); |
2668 | (void) serialize_bool(f, "flush-n-restarts", s->flush_n_restarts); | |
7a0019d3 | 2669 | |
d68c645b | 2670 | r = serialize_item_escaped(f, "status-text", s->status_text); |
a34ceba6 LP |
2671 | if (r < 0) |
2672 | return r; | |
3a2776bc | 2673 | |
e266c068 MS |
2674 | service_serialize_exec_command(u, f, s->control_command); |
2675 | service_serialize_exec_command(u, f, s->main_command); | |
a16e1123 | 2676 | |
d68c645b | 2677 | r = serialize_fd(f, fds, "stdin-fd", s->stdin_fd); |
a34ceba6 LP |
2678 | if (r < 0) |
2679 | return r; | |
d68c645b | 2680 | r = serialize_fd(f, fds, "stdout-fd", s->stdout_fd); |
a34ceba6 LP |
2681 | if (r < 0) |
2682 | return r; | |
d68c645b | 2683 | r = serialize_fd(f, fds, "stderr-fd", s->stderr_fd); |
a34ceba6 LP |
2684 | if (r < 0) |
2685 | return r; | |
e44da745 | 2686 | |
5686391b | 2687 | if (s->exec_fd_event_source) { |
d68c645b | 2688 | r = serialize_fd(f, fds, "exec-fd", sd_event_source_get_io_fd(s->exec_fd_event_source)); |
5686391b LP |
2689 | if (r < 0) |
2690 | return r; | |
d68c645b LP |
2691 | |
2692 | (void) serialize_bool(f, "exec-fd-hot", s->exec_fd_hot); | |
5686391b LP |
2693 | } |
2694 | ||
9dfb64f8 | 2695 | if (UNIT_ISSET(s->accept_socket)) { |
d68c645b | 2696 | r = serialize_item(f, "accept-socket", UNIT_DEREF(s->accept_socket)->id); |
9dfb64f8 ZJS |
2697 | if (r < 0) |
2698 | return r; | |
2699 | } | |
2700 | ||
d68c645b | 2701 | r = serialize_fd(f, fds, "socket-fd", s->socket_fd); |
a34ceba6 LP |
2702 | if (r < 0) |
2703 | return r; | |
e44da745 | 2704 | |
2339fc93 | 2705 | LIST_FOREACH(fd_store, fs, s->fd_store) { |
8dd4c05b | 2706 | _cleanup_free_ char *c = NULL; |
2339fc93 LP |
2707 | int copy; |
2708 | ||
2709 | copy = fdset_put_dup(fds, fs->fd); | |
2710 | if (copy < 0) | |
d68c645b | 2711 | return log_error_errno(copy, "Failed to copy file descriptor for serialization: %m"); |
2339fc93 | 2712 | |
8dd4c05b | 2713 | c = cescape(fs->fdname); |
d68c645b LP |
2714 | if (!c) |
2715 | return log_oom(); | |
8dd4c05b | 2716 | |
30520492 | 2717 | (void) serialize_item_format(f, "fd-store-fd", "%i \"%s\" %i", copy, c, fs->do_poll); |
2339fc93 LP |
2718 | } |
2719 | ||
ecdbca40 | 2720 | if (s->main_exec_status.pid > 0) { |
d68c645b LP |
2721 | (void) serialize_item_format(f, "main-exec-status-pid", PID_FMT, s->main_exec_status.pid); |
2722 | (void) serialize_dual_timestamp(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); | |
2723 | (void) serialize_dual_timestamp(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2724 | |
799fd0fd | 2725 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
d68c645b LP |
2726 | (void) serialize_item_format(f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2727 | (void) serialize_item_format(f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
ecdbca40 LP |
2728 | } |
2729 | } | |
f06db334 | 2730 | |
d68c645b LP |
2731 | (void) serialize_dual_timestamp(f, "watchdog-timestamp", &s->watchdog_timestamp); |
2732 | (void) serialize_bool(f, "forbid-restart", s->forbid_restart); | |
6aca9a58 | 2733 | |
2787d83c | 2734 | if (s->watchdog_override_enable) |
d68c645b | 2735 | (void) serialize_item_format(f, "watchdog-override-usec", USEC_FMT, s->watchdog_override_usec); |
2787d83c | 2736 | |
aa8c4bbf LP |
2737 | if (s->watchdog_original_usec != USEC_INFINITY) |
2738 | (void) serialize_item_format(f, "watchdog-original-usec", USEC_FMT, s->watchdog_original_usec); | |
2739 | ||
a16e1123 LP |
2740 | return 0; |
2741 | } | |
2742 | ||
5b99bd5f LP |
2743 | static int service_deserialize_exec_command( |
2744 | Unit *u, | |
2745 | const char *key, | |
2746 | const char *value) { | |
2747 | ||
e266c068 MS |
2748 | Service *s = SERVICE(u); |
2749 | int r; | |
2750 | unsigned idx = 0, i; | |
2751 | bool control, found = false; | |
2752 | ServiceExecCommand id = _SERVICE_EXEC_COMMAND_INVALID; | |
2753 | ExecCommand *command = NULL; | |
6eeec374 | 2754 | _cleanup_free_ char *path = NULL; |
e266c068 MS |
2755 | _cleanup_strv_free_ char **argv = NULL; |
2756 | ||
2757 | enum ExecCommandState { | |
2758 | STATE_EXEC_COMMAND_TYPE, | |
2759 | STATE_EXEC_COMMAND_INDEX, | |
2760 | STATE_EXEC_COMMAND_PATH, | |
2761 | STATE_EXEC_COMMAND_ARGS, | |
2762 | _STATE_EXEC_COMMAND_MAX, | |
2763 | _STATE_EXEC_COMMAND_INVALID = -1, | |
2764 | } state; | |
2765 | ||
2766 | assert(s); | |
2767 | assert(key); | |
2768 | assert(value); | |
2769 | ||
2770 | control = streq(key, "control-command"); | |
2771 | ||
2772 | state = STATE_EXEC_COMMAND_TYPE; | |
2773 | ||
2774 | for (;;) { | |
2775 | _cleanup_free_ char *arg = NULL; | |
2776 | ||
334c0979 | 2777 | r = extract_first_word(&value, &arg, NULL, EXTRACT_CUNESCAPE | EXTRACT_UNQUOTE); |
efa3f34e LP |
2778 | if (r < 0) |
2779 | return r; | |
e266c068 MS |
2780 | if (r == 0) |
2781 | break; | |
e266c068 MS |
2782 | |
2783 | switch (state) { | |
2784 | case STATE_EXEC_COMMAND_TYPE: | |
2785 | id = service_exec_command_from_string(arg); | |
2786 | if (id < 0) | |
2787 | return -EINVAL; | |
2788 | ||
2789 | state = STATE_EXEC_COMMAND_INDEX; | |
2790 | break; | |
2791 | case STATE_EXEC_COMMAND_INDEX: | |
2792 | r = safe_atou(arg, &idx); | |
2793 | if (r < 0) | |
2794 | return -EINVAL; | |
2795 | ||
2796 | state = STATE_EXEC_COMMAND_PATH; | |
2797 | break; | |
2798 | case STATE_EXEC_COMMAND_PATH: | |
ae2a15bc | 2799 | path = TAKE_PTR(arg); |
e266c068 MS |
2800 | state = STATE_EXEC_COMMAND_ARGS; |
2801 | ||
2802 | if (!path_is_absolute(path)) | |
2803 | return -EINVAL; | |
2804 | break; | |
2805 | case STATE_EXEC_COMMAND_ARGS: | |
2806 | r = strv_extend(&argv, arg); | |
2807 | if (r < 0) | |
2808 | return -ENOMEM; | |
2809 | break; | |
2810 | default: | |
2811 | assert_not_reached("Unknown error at deserialization of exec command"); | |
2812 | break; | |
2813 | } | |
2814 | } | |
2815 | ||
2816 | if (state != STATE_EXEC_COMMAND_ARGS) | |
2817 | return -EINVAL; | |
2818 | ||
2819 | /* Let's check whether exec command on given offset matches data that we just deserialized */ | |
2820 | for (command = s->exec_command[id], i = 0; command; command = command->command_next, i++) { | |
2821 | if (i != idx) | |
2822 | continue; | |
2823 | ||
2824 | found = strv_equal(argv, command->argv) && streq(command->path, path); | |
2825 | break; | |
2826 | } | |
2827 | ||
2828 | if (!found) { | |
2829 | /* Command at the index we serialized is different, let's look for command that exactly | |
2830 | * matches but is on different index. If there is no such command we will not resume execution. */ | |
2831 | for (command = s->exec_command[id]; command; command = command->command_next) | |
2832 | if (strv_equal(command->argv, argv) && streq(command->path, path)) | |
2833 | break; | |
2834 | } | |
2835 | ||
e9da62b1 | 2836 | if (command && control) { |
e266c068 | 2837 | s->control_command = command; |
e9da62b1 LP |
2838 | s->control_command_id = id; |
2839 | } else if (command) | |
e266c068 MS |
2840 | s->main_command = command; |
2841 | else | |
2842 | log_unit_warning(u, "Current command vanished from the unit file, execution of the command list won't be resumed."); | |
2843 | ||
2844 | return 0; | |
2845 | } | |
2846 | ||
a16e1123 LP |
2847 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { |
2848 | Service *s = SERVICE(u); | |
2339fc93 | 2849 | int r; |
a16e1123 LP |
2850 | |
2851 | assert(u); | |
2852 | assert(key); | |
2853 | assert(value); | |
2854 | assert(fds); | |
2855 | ||
2856 | if (streq(key, "state")) { | |
2857 | ServiceState state; | |
2858 | ||
117dcc57 ZJS |
2859 | state = service_state_from_string(value); |
2860 | if (state < 0) | |
f2341e0a | 2861 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2862 | else |
2863 | s->deserialized_state = state; | |
f42806df LP |
2864 | } else if (streq(key, "result")) { |
2865 | ServiceResult f; | |
2866 | ||
2867 | f = service_result_from_string(value); | |
2868 | if (f < 0) | |
f2341e0a | 2869 | log_unit_debug(u, "Failed to parse result value: %s", value); |
f42806df LP |
2870 | else if (f != SERVICE_SUCCESS) |
2871 | s->result = f; | |
2872 | ||
2873 | } else if (streq(key, "reload-result")) { | |
2874 | ServiceResult f; | |
2875 | ||
2876 | f = service_result_from_string(value); | |
2877 | if (f < 0) | |
f2341e0a | 2878 | log_unit_debug(u, "Failed to parse reload result value: %s", value); |
f42806df LP |
2879 | else if (f != SERVICE_SUCCESS) |
2880 | s->reload_result = f; | |
a16e1123 | 2881 | |
a16e1123 | 2882 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2883 | pid_t pid; |
a16e1123 | 2884 | |
e364ad06 | 2885 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2886 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2887 | else |
e55224ca | 2888 | s->control_pid = pid; |
a16e1123 | 2889 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2890 | pid_t pid; |
a16e1123 | 2891 | |
e364ad06 | 2892 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2893 | log_unit_debug(u, "Failed to parse main-pid value: %s", value); |
eabd3e56 LP |
2894 | else |
2895 | (void) service_set_main_pid(s, pid); | |
a16e1123 LP |
2896 | } else if (streq(key, "main-pid-known")) { |
2897 | int b; | |
2898 | ||
117dcc57 ZJS |
2899 | b = parse_boolean(value); |
2900 | if (b < 0) | |
f2341e0a | 2901 | log_unit_debug(u, "Failed to parse main-pid-known value: %s", value); |
a16e1123 LP |
2902 | else |
2903 | s->main_pid_known = b; | |
de1d4f9b WF |
2904 | } else if (streq(key, "bus-name-good")) { |
2905 | int b; | |
2906 | ||
2907 | b = parse_boolean(value); | |
2908 | if (b < 0) | |
2909 | log_unit_debug(u, "Failed to parse bus-name-good value: %s", value); | |
2910 | else | |
2911 | s->bus_name_good = b; | |
d8ccf5fd DM |
2912 | } else if (streq(key, "bus-name-owner")) { |
2913 | r = free_and_strdup(&s->bus_name_owner, value); | |
2914 | if (r < 0) | |
2915 | log_unit_error_errno(u, r, "Unable to deserialize current bus owner %s: %m", value); | |
3a2776bc LP |
2916 | } else if (streq(key, "status-text")) { |
2917 | char *t; | |
2918 | ||
f2341e0a LP |
2919 | r = cunescape(value, 0, &t); |
2920 | if (r < 0) | |
5e1ee764 | 2921 | log_unit_debug_errno(u, r, "Failed to unescape status text '%s': %m", value); |
efa3f34e LP |
2922 | else |
2923 | free_and_replace(s->status_text, t); | |
3a2776bc | 2924 | |
9dfb64f8 ZJS |
2925 | } else if (streq(key, "accept-socket")) { |
2926 | Unit *socket; | |
2927 | ||
2928 | r = manager_load_unit(u->manager, value, NULL, NULL, &socket); | |
2929 | if (r < 0) | |
5e1ee764 | 2930 | log_unit_debug_errno(u, r, "Failed to load accept-socket unit '%s': %m", value); |
9dfb64f8 | 2931 | else { |
7f7d01ed | 2932 | unit_ref_set(&s->accept_socket, u, socket); |
9dfb64f8 ZJS |
2933 | SOCKET(socket)->n_connections++; |
2934 | } | |
2935 | ||
a16e1123 LP |
2936 | } else if (streq(key, "socket-fd")) { |
2937 | int fd; | |
2938 | ||
2939 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2940 | log_unit_debug(u, "Failed to parse socket-fd value: %s", value); |
a16e1123 | 2941 | else { |
574634bc | 2942 | asynchronous_close(s->socket_fd); |
a16e1123 LP |
2943 | s->socket_fd = fdset_remove(fds, fd); |
2944 | } | |
2339fc93 | 2945 | } else if (streq(key, "fd-store-fd")) { |
30520492 | 2946 | _cleanup_free_ char *fdv = NULL, *fdn = NULL, *fdp = NULL; |
2339fc93 | 2947 | int fd; |
30520492 | 2948 | int do_poll; |
2339fc93 | 2949 | |
30520492 KL |
2950 | r = extract_first_word(&value, &fdv, NULL, 0); |
2951 | if (r <= 0 || safe_atoi(fdv, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) { | |
f2341e0a | 2952 | log_unit_debug(u, "Failed to parse fd-store-fd value: %s", value); |
30520492 KL |
2953 | return 0; |
2954 | } | |
8dd4c05b | 2955 | |
30520492 KL |
2956 | r = extract_first_word(&value, &fdn, NULL, EXTRACT_CUNESCAPE | EXTRACT_UNQUOTE); |
2957 | if (r <= 0) { | |
2958 | log_unit_debug_errno(u, r, "Failed to parse fd-store-fd value \"%s\": %m", value); | |
2959 | return 0; | |
2960 | } | |
8dd4c05b | 2961 | |
30520492 KL |
2962 | r = extract_first_word(&value, &fdp, NULL, 0); |
2963 | if (r == 0) { | |
2964 | /* If the value is not present, we assume the default */ | |
2965 | do_poll = 1; | |
2966 | } else if (r < 0 || safe_atoi(fdp, &do_poll) < 0) { | |
2967 | log_unit_debug_errno(u, r, "Failed to parse fd-store-fd value \"%s\": %m", value); | |
2968 | return 0; | |
2339fc93 LP |
2969 | } |
2970 | ||
30520492 KL |
2971 | r = service_add_fd_store(s, fd, fdn, do_poll); |
2972 | if (r < 0) | |
2973 | log_unit_error_errno(u, r, "Failed to add fd to store: %m"); | |
2974 | else | |
2975 | fdset_remove(fds, fd); | |
ecdbca40 LP |
2976 | } else if (streq(key, "main-exec-status-pid")) { |
2977 | pid_t pid; | |
2978 | ||
e364ad06 | 2979 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2980 | log_unit_debug(u, "Failed to parse main-exec-status-pid value: %s", value); |
ecdbca40 LP |
2981 | else |
2982 | s->main_exec_status.pid = pid; | |
2983 | } else if (streq(key, "main-exec-status-code")) { | |
2984 | int i; | |
2985 | ||
e364ad06 | 2986 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2987 | log_unit_debug(u, "Failed to parse main-exec-status-code value: %s", value); |
ecdbca40 LP |
2988 | else |
2989 | s->main_exec_status.code = i; | |
2990 | } else if (streq(key, "main-exec-status-status")) { | |
2991 | int i; | |
2992 | ||
e364ad06 | 2993 | if (safe_atoi(value, &i) < 0) |
f2341e0a | 2994 | log_unit_debug(u, "Failed to parse main-exec-status-status value: %s", value); |
ecdbca40 LP |
2995 | else |
2996 | s->main_exec_status.status = i; | |
799fd0fd | 2997 | } else if (streq(key, "main-exec-status-start")) |
d68c645b | 2998 | deserialize_dual_timestamp(value, &s->main_exec_status.start_timestamp); |
799fd0fd | 2999 | else if (streq(key, "main-exec-status-exit")) |
d68c645b | 3000 | deserialize_dual_timestamp(value, &s->main_exec_status.exit_timestamp); |
a6927d7f | 3001 | else if (streq(key, "watchdog-timestamp")) |
d68c645b | 3002 | deserialize_dual_timestamp(value, &s->watchdog_timestamp); |
613b411c | 3003 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
3004 | int b; |
3005 | ||
3006 | b = parse_boolean(value); | |
3007 | if (b < 0) | |
f2341e0a | 3008 | log_unit_debug(u, "Failed to parse forbid-restart value: %s", value); |
6aca9a58 SE |
3009 | else |
3010 | s->forbid_restart = b; | |
a34ceba6 LP |
3011 | } else if (streq(key, "stdin-fd")) { |
3012 | int fd; | |
3013 | ||
3014 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3015 | log_unit_debug(u, "Failed to parse stdin-fd value: %s", value); | |
3016 | else { | |
3017 | asynchronous_close(s->stdin_fd); | |
3018 | s->stdin_fd = fdset_remove(fds, fd); | |
1e22b5cd | 3019 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
3020 | } |
3021 | } else if (streq(key, "stdout-fd")) { | |
3022 | int fd; | |
3023 | ||
3024 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3025 | log_unit_debug(u, "Failed to parse stdout-fd value: %s", value); | |
3026 | else { | |
3027 | asynchronous_close(s->stdout_fd); | |
3028 | s->stdout_fd = fdset_remove(fds, fd); | |
1e22b5cd | 3029 | s->exec_context.stdio_as_fds = true; |
a34ceba6 LP |
3030 | } |
3031 | } else if (streq(key, "stderr-fd")) { | |
3032 | int fd; | |
3033 | ||
3034 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3035 | log_unit_debug(u, "Failed to parse stderr-fd value: %s", value); | |
3036 | else { | |
3037 | asynchronous_close(s->stderr_fd); | |
3038 | s->stderr_fd = fdset_remove(fds, fd); | |
1e22b5cd | 3039 | s->exec_context.stdio_as_fds = true; |
a34ceba6 | 3040 | } |
5686391b LP |
3041 | } else if (streq(key, "exec-fd")) { |
3042 | int fd; | |
3043 | ||
3044 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
3045 | log_unit_debug(u, "Failed to parse exec-fd value: %s", value); | |
3046 | else { | |
3047 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
3048 | ||
3049 | fd = fdset_remove(fds, fd); | |
3050 | if (service_allocate_exec_fd_event_source(s, fd, &s->exec_fd_event_source) < 0) | |
3051 | safe_close(fd); | |
3052 | } | |
2787d83c | 3053 | } else if (streq(key, "watchdog-override-usec")) { |
d68c645b | 3054 | if (deserialize_usec(value, &s->watchdog_override_usec) < 0) |
2787d83c | 3055 | log_unit_debug(u, "Failed to parse watchdog_override_usec value: %s", value); |
d68c645b | 3056 | else |
2787d83c | 3057 | s->watchdog_override_enable = true; |
d68c645b | 3058 | |
aa8c4bbf LP |
3059 | } else if (streq(key, "watchdog-original-usec")) { |
3060 | if (deserialize_usec(value, &s->watchdog_original_usec) < 0) | |
3061 | log_unit_debug(u, "Failed to parse watchdog_original_usec value: %s", value); | |
3062 | ||
e266c068 MS |
3063 | } else if (STR_IN_SET(key, "main-command", "control-command")) { |
3064 | r = service_deserialize_exec_command(u, key, value); | |
3065 | if (r < 0) | |
3066 | log_unit_debug_errno(u, r, "Failed to parse serialized command \"%s\": %m", value); | |
7a0019d3 LP |
3067 | |
3068 | } else if (streq(key, "n-restarts")) { | |
3069 | r = safe_atou(value, &s->n_restarts); | |
3070 | if (r < 0) | |
3071 | log_unit_debug_errno(u, r, "Failed to parse serialized restart counter '%s': %m", value); | |
3072 | ||
3073 | } else if (streq(key, "flush-n-restarts")) { | |
3074 | r = parse_boolean(value); | |
3075 | if (r < 0) | |
3076 | log_unit_debug_errno(u, r, "Failed to parse serialized flush restart counter setting '%s': %m", value); | |
3077 | else | |
3078 | s->flush_n_restarts = r; | |
c17ec25e | 3079 | } else |
f2341e0a | 3080 | log_unit_debug(u, "Unknown serialization key: %s", key); |
a16e1123 LP |
3081 | |
3082 | return 0; | |
3083 | } | |
3084 | ||
44a6b1b6 | 3085 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
3086 | const UnitActiveState *table; |
3087 | ||
87f0e418 | 3088 | assert(u); |
5cb5a6ff | 3089 | |
e056b01d LP |
3090 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
3091 | ||
3092 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
3093 | } |
3094 | ||
10a94420 LP |
3095 | static const char *service_sub_state_to_string(Unit *u) { |
3096 | assert(u); | |
3097 | ||
3098 | return service_state_to_string(SERVICE(u)->state); | |
3099 | } | |
3100 | ||
f2f725e5 | 3101 | static bool service_may_gc(Unit *u) { |
701cc384 LP |
3102 | Service *s = SERVICE(u); |
3103 | ||
3104 | assert(s); | |
3105 | ||
e98b2fbb | 3106 | /* Never clean up services that still have a process around, even if the service is formally dead. Note that |
f2f725e5 | 3107 | * unit_may_gc() already checked our cgroup for us, we just check our two additional PIDs, too, in case they |
e98b2fbb LP |
3108 | * have moved outside of the cgroup. */ |
3109 | ||
3110 | if (main_pid_good(s) > 0 || | |
6d55002a | 3111 | control_pid_good(s) > 0) |
f2f725e5 | 3112 | return false; |
6d55002a | 3113 | |
f2f725e5 | 3114 | return true; |
6d55002a LP |
3115 | } |
3116 | ||
3a111838 MS |
3117 | static int service_retry_pid_file(Service *s) { |
3118 | int r; | |
3119 | ||
3120 | assert(s->pid_file); | |
3742095b | 3121 | assert(IN_SET(s->state, SERVICE_START, SERVICE_START_POST)); |
3a111838 MS |
3122 | |
3123 | r = service_load_pid_file(s, false); | |
3124 | if (r < 0) | |
3125 | return r; | |
3126 | ||
3127 | service_unwatch_pid_file(s); | |
3128 | ||
f42806df | 3129 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
3130 | return 0; |
3131 | } | |
3132 | ||
3133 | static int service_watch_pid_file(Service *s) { | |
3134 | int r; | |
3135 | ||
f2341e0a | 3136 | log_unit_debug(UNIT(s), "Setting watch for PID file %s", s->pid_file_pathspec->path); |
8bb2d17d | 3137 | |
5686391b | 3138 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_inotify_io); |
3a111838 MS |
3139 | if (r < 0) |
3140 | goto fail; | |
3141 | ||
3142 | /* the pidfile might have appeared just before we set the watch */ | |
f2341e0a | 3143 | log_unit_debug(UNIT(s), "Trying to read PID file %s in case it changed", s->pid_file_pathspec->path); |
3a111838 MS |
3144 | service_retry_pid_file(s); |
3145 | ||
3146 | return 0; | |
3147 | fail: | |
f2341e0a | 3148 | log_unit_error_errno(UNIT(s), r, "Failed to set a watch for PID file %s: %m", s->pid_file_pathspec->path); |
3a111838 MS |
3149 | service_unwatch_pid_file(s); |
3150 | return r; | |
3151 | } | |
3152 | ||
3153 | static int service_demand_pid_file(Service *s) { | |
3154 | PathSpec *ps; | |
3155 | ||
3156 | assert(s->pid_file); | |
3157 | assert(!s->pid_file_pathspec); | |
3158 | ||
3159 | ps = new0(PathSpec, 1); | |
3160 | if (!ps) | |
3161 | return -ENOMEM; | |
3162 | ||
718db961 | 3163 | ps->unit = UNIT(s); |
3a111838 MS |
3164 | ps->path = strdup(s->pid_file); |
3165 | if (!ps->path) { | |
3166 | free(ps); | |
3167 | return -ENOMEM; | |
3168 | } | |
3169 | ||
858d36c1 | 3170 | path_simplify(ps->path, false); |
3a111838 MS |
3171 | |
3172 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
3173 | * keep their PID file open all the time. */ | |
3174 | ps->type = PATH_MODIFIED; | |
3175 | ps->inotify_fd = -1; | |
3176 | ||
3177 | s->pid_file_pathspec = ps; | |
3178 | ||
3179 | return service_watch_pid_file(s); | |
3180 | } | |
3181 | ||
5686391b | 3182 | static int service_dispatch_inotify_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
3183 | PathSpec *p = userdata; |
3184 | Service *s; | |
3185 | ||
3186 | assert(p); | |
3187 | ||
3188 | s = SERVICE(p->unit); | |
3a111838 MS |
3189 | |
3190 | assert(s); | |
3191 | assert(fd >= 0); | |
3742095b | 3192 | assert(IN_SET(s->state, SERVICE_START, SERVICE_START_POST)); |
3a111838 | 3193 | assert(s->pid_file_pathspec); |
57020a3a | 3194 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 3195 | |
f2341e0a | 3196 | log_unit_debug(UNIT(s), "inotify event"); |
3a111838 | 3197 | |
e14c2802 | 3198 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
3199 | goto fail; |
3200 | ||
3201 | if (service_retry_pid_file(s) == 0) | |
718db961 | 3202 | return 0; |
3a111838 MS |
3203 | |
3204 | if (service_watch_pid_file(s) < 0) | |
3205 | goto fail; | |
3206 | ||
718db961 LP |
3207 | return 0; |
3208 | ||
3a111838 MS |
3209 | fail: |
3210 | service_unwatch_pid_file(s); | |
f42806df | 3211 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 3212 | return 0; |
3a111838 MS |
3213 | } |
3214 | ||
5686391b LP |
3215 | static int service_dispatch_exec_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
3216 | Service *s = SERVICE(userdata); | |
3217 | ||
3218 | assert(s); | |
3219 | ||
3220 | log_unit_debug(UNIT(s), "got exec-fd event"); | |
3221 | ||
3222 | /* If Type=exec is set, we'll consider a service started successfully the instant we invoked execve() | |
3223 | * successfully for it. We implement this through a pipe() towards the child, which the kernel automatically | |
3224 | * closes for us due to O_CLOEXEC on execve() in the child, which then triggers EOF on the pipe in the | |
3225 | * parent. We need to be careful however, as there are other reasons that we might cause the child's side of | |
3226 | * the pipe to be closed (for example, a simple exit()). To deal with that we'll ignore EOFs on the pipe unless | |
3227 | * the child signalled us first that it is about to call the execve(). It does so by sending us a simple | |
3228 | * non-zero byte via the pipe. We also provide the child with a way to inform us in case execve() failed: if it | |
3229 | * sends a zero byte we'll ignore POLLHUP on the fd again. */ | |
3230 | ||
3231 | for (;;) { | |
3232 | uint8_t x; | |
3233 | ssize_t n; | |
3234 | ||
3235 | n = read(fd, &x, sizeof(x)); | |
3236 | if (n < 0) { | |
3237 | if (errno == EAGAIN) /* O_NONBLOCK in effect → everything queued has now been processed. */ | |
3238 | return 0; | |
3239 | ||
3240 | return log_unit_error_errno(UNIT(s), errno, "Failed to read from exec_fd: %m"); | |
3241 | } | |
3242 | if (n == 0) { /* EOF → the event we are waiting for */ | |
3243 | ||
3244 | s->exec_fd_event_source = sd_event_source_unref(s->exec_fd_event_source); | |
3245 | ||
3246 | if (s->exec_fd_hot) { /* Did the child tell us to expect EOF now? */ | |
3247 | log_unit_debug(UNIT(s), "Got EOF on exec-fd"); | |
3248 | ||
3249 | s->exec_fd_hot = false; | |
3250 | ||
3251 | /* Nice! This is what we have been waiting for. Transition to next state. */ | |
3252 | if (s->type == SERVICE_EXEC && s->state == SERVICE_START) | |
3253 | service_enter_start_post(s); | |
3254 | } else | |
3255 | log_unit_debug(UNIT(s), "Got EOF on exec-fd while it was disabled, ignoring."); | |
3256 | ||
3257 | return 0; | |
3258 | } | |
3259 | ||
3260 | /* A byte was read → this turns on/off the exec fd logic */ | |
3261 | assert(n == sizeof(x)); | |
3262 | s->exec_fd_hot = x; | |
3263 | } | |
3264 | ||
3265 | return 0; | |
3266 | } | |
3267 | ||
a911bb9a LP |
3268 | static void service_notify_cgroup_empty_event(Unit *u) { |
3269 | Service *s = SERVICE(u); | |
3270 | ||
3271 | assert(u); | |
3272 | ||
a5b5aece | 3273 | log_unit_debug(u, "Control group is empty."); |
a911bb9a LP |
3274 | |
3275 | switch (s->state) { | |
3276 | ||
3277 | /* Waiting for SIGCHLD is usually more interesting, | |
3278 | * because it includes return codes/signals. Which is | |
3279 | * why we ignore the cgroup events for most cases, | |
3280 | * except when we don't know pid which to expect the | |
3281 | * SIGCHLD for. */ | |
3282 | ||
3283 | case SERVICE_START: | |
3c751b1b LP |
3284 | if (s->type == SERVICE_NOTIFY && |
3285 | main_pid_good(s) == 0 && | |
3286 | control_pid_good(s) == 0) { | |
3d474ef7 | 3287 | /* No chance of getting a ready notification anymore */ |
c3fda31d | 3288 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
71e529fc JW |
3289 | break; |
3290 | } | |
3291 | ||
4831981d | 3292 | _fallthrough_; |
71e529fc | 3293 | case SERVICE_START_POST: |
3c751b1b LP |
3294 | if (s->pid_file_pathspec && |
3295 | main_pid_good(s) == 0 && | |
3296 | control_pid_good(s) == 0) { | |
3297 | ||
3d474ef7 | 3298 | /* Give up hoping for the daemon to write its PID file */ |
f2341e0a | 3299 | log_unit_warning(u, "Daemon never wrote its PID file. Failing."); |
8bb2d17d | 3300 | |
a911bb9a LP |
3301 | service_unwatch_pid_file(s); |
3302 | if (s->state == SERVICE_START) | |
c3fda31d | 3303 | service_enter_stop_post(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a | 3304 | else |
c35755fb | 3305 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
a911bb9a LP |
3306 | } |
3307 | break; | |
3308 | ||
3309 | case SERVICE_RUNNING: | |
3310 | /* service_enter_running() will figure out what to do */ | |
3311 | service_enter_running(s, SERVICE_SUCCESS); | |
3312 | break; | |
3313 | ||
c87700a1 | 3314 | case SERVICE_STOP_WATCHDOG: |
a911bb9a LP |
3315 | case SERVICE_STOP_SIGTERM: |
3316 | case SERVICE_STOP_SIGKILL: | |
3317 | ||
b13ddbbc | 3318 | if (main_pid_good(s) <= 0 && control_pid_good(s) <= 0) |
a911bb9a LP |
3319 | service_enter_stop_post(s, SERVICE_SUCCESS); |
3320 | ||
3321 | break; | |
3322 | ||
3323 | case SERVICE_STOP_POST: | |
3324 | case SERVICE_FINAL_SIGTERM: | |
3325 | case SERVICE_FINAL_SIGKILL: | |
b13ddbbc | 3326 | if (main_pid_good(s) <= 0 && control_pid_good(s) <= 0) |
a911bb9a LP |
3327 | service_enter_dead(s, SERVICE_SUCCESS, true); |
3328 | ||
3329 | break; | |
3330 | ||
3331 | default: | |
3332 | ; | |
3333 | } | |
3334 | } | |
3335 | ||
afcfaa69 LP |
3336 | static void service_notify_cgroup_oom_event(Unit *u) { |
3337 | Service *s = SERVICE(u); | |
3338 | ||
3339 | log_unit_debug(u, "Process of control group was killed by the OOM killer."); | |
3340 | ||
3341 | if (s->oom_policy == OOM_CONTINUE) | |
3342 | return; | |
3343 | ||
3344 | switch (s->state) { | |
3345 | ||
31cd5f63 | 3346 | case SERVICE_CONDITION: |
afcfaa69 LP |
3347 | case SERVICE_START_PRE: |
3348 | case SERVICE_START: | |
3349 | case SERVICE_START_POST: | |
3350 | case SERVICE_STOP: | |
3351 | if (s->oom_policy == OOM_STOP) | |
3352 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_OOM_KILL); | |
3353 | else if (s->oom_policy == OOM_KILL) | |
3354 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3355 | ||
3356 | break; | |
3357 | ||
3358 | case SERVICE_EXITED: | |
3359 | case SERVICE_RUNNING: | |
3360 | if (s->oom_policy == OOM_STOP) | |
3361 | service_enter_stop(s, SERVICE_FAILURE_OOM_KILL); | |
3362 | else if (s->oom_policy == OOM_KILL) | |
3363 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3364 | ||
3365 | break; | |
3366 | ||
3367 | case SERVICE_STOP_WATCHDOG: | |
3368 | case SERVICE_STOP_SIGTERM: | |
3369 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3370 | break; | |
3371 | ||
3372 | case SERVICE_STOP_SIGKILL: | |
3373 | case SERVICE_FINAL_SIGKILL: | |
3374 | if (s->result == SERVICE_SUCCESS) | |
3375 | s->result = SERVICE_FAILURE_OOM_KILL; | |
3376 | break; | |
3377 | ||
3378 | case SERVICE_STOP_POST: | |
3379 | case SERVICE_FINAL_SIGTERM: | |
3380 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_OOM_KILL); | |
3381 | break; | |
3382 | ||
3383 | default: | |
3384 | ; | |
3385 | } | |
3386 | } | |
3387 | ||
87f0e418 | 3388 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
5cdabc8d | 3389 | bool notify_dbus = true; |
87f0e418 | 3390 | Service *s = SERVICE(u); |
f42806df | 3391 | ServiceResult f; |
e5123725 | 3392 | ExitClean clean_mode; |
5cb5a6ff LP |
3393 | |
3394 | assert(s); | |
034c6ed7 LP |
3395 | assert(pid >= 0); |
3396 | ||
e5123725 AZ |
3397 | /* Oneshot services and non-SERVICE_EXEC_START commands should not be |
3398 | * considered daemons as they are typically not long running. */ | |
3399 | if (s->type == SERVICE_ONESHOT || (s->control_pid == pid && s->control_command_id != SERVICE_EXEC_START)) | |
3400 | clean_mode = EXIT_CLEAN_COMMAND; | |
3401 | else | |
3402 | clean_mode = EXIT_CLEAN_DAEMON; | |
3403 | ||
3404 | if (is_clean_exit(code, status, clean_mode, &s->success_status)) | |
f42806df LP |
3405 | f = SERVICE_SUCCESS; |
3406 | else if (code == CLD_EXITED) | |
3407 | f = SERVICE_FAILURE_EXIT_CODE; | |
3408 | else if (code == CLD_KILLED) | |
3409 | f = SERVICE_FAILURE_SIGNAL; | |
3410 | else if (code == CLD_DUMPED) | |
3411 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 3412 | else |
cfc4eb4c | 3413 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
3414 | |
3415 | if (s->main_pid == pid) { | |
db01f8b3 MS |
3416 | /* Forking services may occasionally move to a new PID. |
3417 | * As long as they update the PID file before exiting the old | |
3418 | * PID, they're fine. */ | |
db256aab | 3419 | if (service_load_pid_file(s, false) > 0) |
db01f8b3 | 3420 | return; |
034c6ed7 | 3421 | |
034c6ed7 | 3422 | s->main_pid = 0; |
6ea832a2 | 3423 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 3424 | |
867b3b7d | 3425 | if (s->main_command) { |
fbeefb45 LP |
3426 | /* If this is not a forking service than the |
3427 | * main process got started and hence we copy | |
3428 | * the exit status so that it is recorded both | |
3429 | * as main and as control process exit | |
3430 | * status */ | |
3431 | ||
867b3b7d | 3432 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 3433 | |
3ed0cd26 | 3434 | if (s->main_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3435 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
3436 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
3437 | ||
3438 | /* If this is a forked process, then we should | |
3439 | * ignore the return value if this was | |
3440 | * configured for the starter process */ | |
3441 | ||
3ed0cd26 | 3442 | if (s->exec_command[SERVICE_EXEC_START]->flags & EXEC_COMMAND_IGNORE_FAILURE) |
fbeefb45 | 3443 | f = SERVICE_SUCCESS; |
034c6ed7 LP |
3444 | } |
3445 | ||
91bbd9b7 | 3446 | unit_log_process_exit( |
5cc2cd1c | 3447 | u, |
91bbd9b7 LP |
3448 | "Main process", |
3449 | service_exec_command_to_string(SERVICE_EXEC_START), | |
5cc2cd1c | 3450 | f == SERVICE_SUCCESS, |
91bbd9b7 | 3451 | code, status); |
f42806df | 3452 | |
a0fef983 | 3453 | if (s->result == SERVICE_SUCCESS) |
f42806df | 3454 | s->result = f; |
034c6ed7 | 3455 | |
867b3b7d LP |
3456 | if (s->main_command && |
3457 | s->main_command->command_next && | |
b58aeb70 | 3458 | s->type == SERVICE_ONESHOT && |
f42806df | 3459 | f == SERVICE_SUCCESS) { |
034c6ed7 | 3460 | |
34e9ba66 LP |
3461 | /* There is another command to * |
3462 | * execute, so let's do that. */ | |
034c6ed7 | 3463 | |
f2341e0a | 3464 | log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state)); |
f42806df | 3465 | service_run_next_main(s); |
034c6ed7 | 3466 | |
34e9ba66 LP |
3467 | } else { |
3468 | ||
3469 | /* The service exited, so the service is officially | |
3470 | * gone. */ | |
867b3b7d | 3471 | s->main_command = NULL; |
34e9ba66 LP |
3472 | |
3473 | switch (s->state) { | |
3474 | ||
3475 | case SERVICE_START_POST: | |
3476 | case SERVICE_RELOAD: | |
3477 | case SERVICE_STOP: | |
3478 | /* Need to wait until the operation is | |
3479 | * done */ | |
c4653a4d | 3480 | break; |
7d55e835 | 3481 | |
34e9ba66 LP |
3482 | case SERVICE_START: |
3483 | if (s->type == SERVICE_ONESHOT) { | |
3484 | /* This was our main goal, so let's go on */ | |
f42806df | 3485 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
3486 | service_enter_start_post(s); |
3487 | else | |
c3fda31d | 3488 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
34e9ba66 | 3489 | break; |
3d474ef7 JW |
3490 | } else if (s->type == SERVICE_NOTIFY) { |
3491 | /* Only enter running through a notification, so that the | |
3492 | * SERVICE_START state signifies that no ready notification | |
3493 | * has been received */ | |
3494 | if (f != SERVICE_SUCCESS) | |
c3fda31d | 3495 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
df66b93f JW |
3496 | else if (!s->remain_after_exit || s->notify_access == NOTIFY_MAIN) |
3497 | /* The service has never been and will never be active */ | |
c3fda31d | 3498 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3d474ef7 | 3499 | break; |
34e9ba66 | 3500 | } |
034c6ed7 | 3501 | |
4831981d | 3502 | _fallthrough_; |
34e9ba66 | 3503 | case SERVICE_RUNNING: |
f42806df | 3504 | service_enter_running(s, f); |
34e9ba66 | 3505 | break; |
034c6ed7 | 3506 | |
c87700a1 | 3507 | case SERVICE_STOP_WATCHDOG: |
34e9ba66 LP |
3508 | case SERVICE_STOP_SIGTERM: |
3509 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 3510 | |
b13ddbbc | 3511 | if (control_pid_good(s) <= 0) |
f42806df | 3512 | service_enter_stop_post(s, f); |
5cb5a6ff | 3513 | |
34e9ba66 LP |
3514 | /* If there is still a control process, wait for that first */ |
3515 | break; | |
3516 | ||
bf108e55 | 3517 | case SERVICE_STOP_POST: |
c1566ef0 AZ |
3518 | |
3519 | if (control_pid_good(s) <= 0) | |
3520 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3521 | ||
3522 | break; | |
3523 | ||
bf108e55 LP |
3524 | case SERVICE_FINAL_SIGTERM: |
3525 | case SERVICE_FINAL_SIGKILL: | |
3526 | ||
b13ddbbc | 3527 | if (control_pid_good(s) <= 0) |
bf108e55 LP |
3528 | service_enter_dead(s, f, true); |
3529 | break; | |
3530 | ||
34e9ba66 LP |
3531 | default: |
3532 | assert_not_reached("Uh, main process died at wrong time."); | |
3533 | } | |
034c6ed7 | 3534 | } |
5cb5a6ff | 3535 | |
034c6ed7 | 3536 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
3537 | s->control_pid = 0; |
3538 | ||
31cd5f63 AZ |
3539 | /* ExecCondition= calls that exit with (0, 254] should invoke skip-like behavior instead of failing */ |
3540 | if (f == SERVICE_FAILURE_EXIT_CODE && s->state == SERVICE_CONDITION && status < 255) | |
3541 | f = SERVICE_SKIP_CONDITION; | |
3542 | ||
b708e7ce | 3543 | if (s->control_command) { |
8bb2d17d | 3544 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 3545 | |
3ed0cd26 | 3546 | if (s->control_command->flags & EXEC_COMMAND_IGNORE_FAILURE) |
f42806df | 3547 | f = SERVICE_SUCCESS; |
b708e7ce LP |
3548 | } |
3549 | ||
91bbd9b7 | 3550 | unit_log_process_exit( |
5cc2cd1c | 3551 | u, |
91bbd9b7 LP |
3552 | "Control process", |
3553 | service_exec_command_to_string(s->control_command_id), | |
5cc2cd1c | 3554 | f == SERVICE_SUCCESS, |
91bbd9b7 | 3555 | code, status); |
f42806df | 3556 | |
d611cfa7 | 3557 | if (s->state != SERVICE_RELOAD && s->result == SERVICE_SUCCESS) |
f42806df | 3558 | s->result = f; |
034c6ed7 | 3559 | |
34e9ba66 LP |
3560 | if (s->control_command && |
3561 | s->control_command->command_next && | |
f42806df | 3562 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3563 | |
3564 | /* There is another command to * | |
3565 | * execute, so let's do that. */ | |
3566 | ||
f2341e0a | 3567 | log_unit_debug(u, "Running next control command for state %s.", service_state_to_string(s->state)); |
f42806df | 3568 | service_run_next_control(s); |
034c6ed7 | 3569 | |
80876c20 | 3570 | } else { |
034c6ed7 LP |
3571 | /* No further commands for this step, so let's |
3572 | * figure out what to do next */ | |
3573 | ||
a16e1123 LP |
3574 | s->control_command = NULL; |
3575 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3576 | ||
f2341e0a | 3577 | log_unit_debug(u, "Got final SIGCHLD for state %s.", service_state_to_string(s->state)); |
bd982a8b | 3578 | |
034c6ed7 LP |
3579 | switch (s->state) { |
3580 | ||
31cd5f63 AZ |
3581 | case SERVICE_CONDITION: |
3582 | if (f == SERVICE_SUCCESS) | |
3583 | service_enter_start_pre(s); | |
3584 | else | |
3585 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); | |
3586 | break; | |
3587 | ||
034c6ed7 | 3588 | case SERVICE_START_PRE: |
f42806df | 3589 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3590 | service_enter_start(s); |
3591 | else | |
c3fda31d | 3592 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3593 | break; |
3594 | ||
3595 | case SERVICE_START: | |
bfba3256 LP |
3596 | if (s->type != SERVICE_FORKING) |
3597 | /* Maybe spurious event due to a reload that changed the type? */ | |
3598 | break; | |
034c6ed7 | 3599 | |
f42806df | 3600 | if (f != SERVICE_SUCCESS) { |
c3fda31d | 3601 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
3a111838 MS |
3602 | break; |
3603 | } | |
034c6ed7 | 3604 | |
3a111838 | 3605 | if (s->pid_file) { |
f42806df LP |
3606 | bool has_start_post; |
3607 | int r; | |
3608 | ||
3a111838 MS |
3609 | /* Let's try to load the pid file here if we can. |
3610 | * The PID file might actually be created by a START_POST | |
3611 | * script. In that case don't worry if the loading fails. */ | |
f42806df | 3612 | |
5d904a6a | 3613 | has_start_post = s->exec_command[SERVICE_EXEC_START_POST]; |
f42806df | 3614 | r = service_load_pid_file(s, !has_start_post); |
3a111838 MS |
3615 | if (!has_start_post && r < 0) { |
3616 | r = service_demand_pid_file(s); | |
b13ddbbc | 3617 | if (r < 0 || cgroup_good(s) == 0) |
c3fda31d | 3618 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_PROTOCOL); |
3a111838 MS |
3619 | break; |
3620 | } | |
034c6ed7 | 3621 | } else |
783e05d6 | 3622 | service_search_main_pid(s); |
034c6ed7 | 3623 | |
3a111838 | 3624 | service_enter_start_post(s); |
034c6ed7 LP |
3625 | break; |
3626 | ||
3627 | case SERVICE_START_POST: | |
f42806df | 3628 | if (f != SERVICE_SUCCESS) { |
ce359e98 | 3629 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
2096e009 | 3630 | break; |
034c6ed7 LP |
3631 | } |
3632 | ||
2096e009 | 3633 | if (s->pid_file) { |
f42806df LP |
3634 | int r; |
3635 | ||
3636 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3637 | if (r < 0) { |
3638 | r = service_demand_pid_file(s); | |
b13ddbbc | 3639 | if (r < 0 || cgroup_good(s) == 0) |
c35755fb | 3640 | service_enter_stop(s, SERVICE_FAILURE_PROTOCOL); |
2096e009 MS |
3641 | break; |
3642 | } | |
3643 | } else | |
783e05d6 | 3644 | service_search_main_pid(s); |
2096e009 | 3645 | |
f42806df | 3646 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3647 | break; |
034c6ed7 LP |
3648 | |
3649 | case SERVICE_RELOAD: | |
7236ce6e ZJS |
3650 | if (f == SERVICE_SUCCESS) |
3651 | if (service_load_pid_file(s, true) < 0) | |
3652 | service_search_main_pid(s); | |
3185a36b | 3653 | |
f42806df LP |
3654 | s->reload_result = f; |
3655 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3656 | break; |
3657 | ||
3658 | case SERVICE_STOP: | |
f42806df | 3659 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3660 | break; |
3661 | ||
c87700a1 | 3662 | case SERVICE_STOP_WATCHDOG: |
034c6ed7 LP |
3663 | case SERVICE_STOP_SIGTERM: |
3664 | case SERVICE_STOP_SIGKILL: | |
3665 | if (main_pid_good(s) <= 0) | |
f42806df | 3666 | service_enter_stop_post(s, f); |
034c6ed7 | 3667 | |
846a07b5 | 3668 | /* If there is still a service process around, wait until |
034c6ed7 LP |
3669 | * that one quit, too */ |
3670 | break; | |
3671 | ||
3672 | case SERVICE_STOP_POST: | |
c1566ef0 AZ |
3673 | if (main_pid_good(s) <= 0) |
3674 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3675 | break; | |
3676 | ||
034c6ed7 LP |
3677 | case SERVICE_FINAL_SIGTERM: |
3678 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
3679 | if (main_pid_good(s) <= 0) |
3680 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
3681 | break; |
3682 | ||
4c2f5842 LP |
3683 | case SERVICE_CLEANING: |
3684 | ||
3685 | if (s->clean_result == SERVICE_SUCCESS) | |
3686 | s->clean_result = f; | |
3687 | ||
3688 | service_enter_dead(s, SERVICE_SUCCESS, false); | |
3689 | break; | |
3690 | ||
034c6ed7 LP |
3691 | default: |
3692 | assert_not_reached("Uh, control process died at wrong time."); | |
3693 | } | |
3694 | } | |
5cdabc8d LP |
3695 | } else /* Neither control nor main PID? If so, don't notify about anything */ |
3696 | notify_dbus = false; | |
c4e2ceae LP |
3697 | |
3698 | /* Notify clients about changed exit status */ | |
5cdabc8d LP |
3699 | if (notify_dbus) |
3700 | unit_add_to_dbus_queue(u); | |
a911bb9a | 3701 | |
846a07b5 FB |
3702 | /* We watch the main/control process otherwise we can't retrieve the unit they |
3703 | * belong to with cgroupv1. But if they are not our direct child, we won't get a | |
3704 | * SIGCHLD for them. Therefore we need to look for others to watch so we can | |
3705 | * detect when the cgroup becomes empty. Note that the control process is always | |
3706 | * our child so it's pointless to watch all other processes. */ | |
3707 | if (!control_pid_good(s)) | |
3708 | if (!s->main_pid_known || s->main_pid_alien) | |
3709 | (void) unit_enqueue_rewatch_pids(u); | |
034c6ed7 LP |
3710 | } |
3711 | ||
718db961 LP |
3712 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
3713 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
3714 | |
3715 | assert(s); | |
718db961 | 3716 | assert(source == s->timer_event_source); |
034c6ed7 LP |
3717 | |
3718 | switch (s->state) { | |
3719 | ||
31cd5f63 | 3720 | case SERVICE_CONDITION: |
034c6ed7 LP |
3721 | case SERVICE_START_PRE: |
3722 | case SERVICE_START: | |
31cd5f63 | 3723 | log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", service_state_to_string(s->state)); |
c3fda31d | 3724 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
3725 | break; |
3726 | ||
034c6ed7 | 3727 | case SERVICE_START_POST: |
f2341e0a | 3728 | log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping."); |
ce359e98 | 3729 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3730 | break; |
3731 | ||
36c16a7c LP |
3732 | case SERVICE_RUNNING: |
3733 | log_unit_warning(UNIT(s), "Service reached runtime time limit. Stopping."); | |
3734 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); | |
3735 | break; | |
3736 | ||
e2f3b44c | 3737 | case SERVICE_RELOAD: |
089b64d5 | 3738 | log_unit_warning(UNIT(s), "Reload operation timed out. Killing reload process."); |
e9a4f676 | 3739 | service_kill_control_process(s); |
f42806df LP |
3740 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3741 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3742 | break; |
3743 | ||
034c6ed7 | 3744 | case SERVICE_STOP: |
f2341e0a | 3745 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
f42806df | 3746 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3747 | break; |
3748 | ||
c87700a1 AZ |
3749 | case SERVICE_STOP_WATCHDOG: |
3750 | log_unit_warning(UNIT(s), "State 'stop-watchdog' timed out. Terminating."); | |
2ab2ab7b | 3751 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
db2cb23b UTL |
3752 | break; |
3753 | ||
034c6ed7 | 3754 | case SERVICE_STOP_SIGTERM: |
4819ff03 | 3755 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3756 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing."); |
f42806df | 3757 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3758 | } else { |
f2341e0a | 3759 | log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Skipping SIGKILL."); |
f42806df | 3760 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3761 | } |
3762 | ||
034c6ed7 LP |
3763 | break; |
3764 | ||
3765 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3766 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3767 | * Must be something we cannot kill, so let's just be |
3768 | * weirded out and continue */ | |
3769 | ||
f2341e0a | 3770 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
f42806df | 3771 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3772 | break; |
3773 | ||
3774 | case SERVICE_STOP_POST: | |
f2341e0a | 3775 | log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating."); |
f42806df | 3776 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3777 | break; |
3778 | ||
3779 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 3780 | if (s->kill_context.send_sigkill) { |
f2341e0a | 3781 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing."); |
f42806df | 3782 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3783 | } else { |
f2341e0a | 3784 | log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode."); |
f42806df | 3785 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3786 | } |
3787 | ||
034c6ed7 LP |
3788 | break; |
3789 | ||
3790 | case SERVICE_FINAL_SIGKILL: | |
f2341e0a | 3791 | log_unit_warning(UNIT(s), "Processes still around after final SIGKILL. Entering failed mode."); |
f42806df | 3792 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3793 | break; |
3794 | ||
3795 | case SERVICE_AUTO_RESTART: | |
5ce6e7f5 ZJS |
3796 | if (s->restart_usec > 0) { |
3797 | char buf_restart[FORMAT_TIMESPAN_MAX]; | |
868f7d36 ZJS |
3798 | log_unit_debug(UNIT(s), |
3799 | "Service RestartSec=%s expired, scheduling restart.", | |
3800 | format_timespan(buf_restart, sizeof buf_restart, s->restart_usec, USEC_PER_SEC)); | |
5ce6e7f5 | 3801 | } else |
868f7d36 ZJS |
3802 | log_unit_debug(UNIT(s), |
3803 | "Service has no hold-off time (RestartSec=0), scheduling restart."); | |
5ce6e7f5 | 3804 | |
034c6ed7 LP |
3805 | service_enter_restart(s); |
3806 | break; | |
3807 | ||
4c2f5842 LP |
3808 | case SERVICE_CLEANING: |
3809 | log_unit_warning(UNIT(s), "Cleaning timed out. killing."); | |
3810 | ||
3811 | if (s->clean_result == SERVICE_SUCCESS) | |
3812 | s->clean_result = SERVICE_FAILURE_TIMEOUT; | |
3813 | ||
3814 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, 0); | |
3815 | break; | |
3816 | ||
034c6ed7 LP |
3817 | default: |
3818 | assert_not_reached("Timeout at wrong time."); | |
3819 | } | |
718db961 LP |
3820 | |
3821 | return 0; | |
3822 | } | |
3823 | ||
3824 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
3825 | Service *s = SERVICE(userdata); | |
a7850c7d | 3826 | char t[FORMAT_TIMESPAN_MAX]; |
2787d83c | 3827 | usec_t watchdog_usec; |
718db961 LP |
3828 | |
3829 | assert(s); | |
3830 | assert(source == s->watchdog_event_source); | |
3831 | ||
2787d83c M |
3832 | watchdog_usec = service_get_watchdog_usec(s); |
3833 | ||
2a12e32e JK |
3834 | if (UNIT(s)->manager->service_watchdogs) { |
3835 | log_unit_error(UNIT(s), "Watchdog timeout (limit %s)!", | |
3836 | format_timespan(t, sizeof(t), watchdog_usec, 1)); | |
8bb2d17d | 3837 | |
c87700a1 | 3838 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_WATCHDOG); |
2a12e32e JK |
3839 | } else |
3840 | log_unit_warning(UNIT(s), "Watchdog disabled! Ignoring watchdog timeout (limit %s)!", | |
3841 | format_timespan(t, sizeof(t), watchdog_usec, 1)); | |
842129f5 | 3842 | |
718db961 | 3843 | return 0; |
5cb5a6ff LP |
3844 | } |
3845 | ||
fcee2755 | 3846 | static bool service_notify_message_authorized(Service *s, pid_t pid, FDSet *fds) { |
e3285237 | 3847 | assert(s); |
8c47c732 | 3848 | |
c952c6ec | 3849 | if (s->notify_access == NOTIFY_NONE) { |
e3285237 LP |
3850 | log_unit_warning(UNIT(s), "Got notification message from PID "PID_FMT", but reception is disabled.", pid); |
3851 | return false; | |
3852 | } | |
3853 | ||
3854 | if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { | |
336c6e46 | 3855 | if (s->main_pid != 0) |
e3285237 | 3856 | 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 | 3857 | else |
e3285237 LP |
3858 | 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); |
3859 | ||
3860 | return false; | |
3861 | } | |
3862 | ||
3863 | if (s->notify_access == NOTIFY_EXEC && pid != s->main_pid && pid != s->control_pid) { | |
6375bd20 | 3864 | if (s->main_pid != 0 && s->control_pid != 0) |
e3285237 | 3865 | 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 |
3866 | pid, s->main_pid, s->control_pid); |
3867 | else if (s->main_pid != 0) | |
e3285237 | 3868 | 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 | 3869 | else if (s->control_pid != 0) |
e3285237 | 3870 | 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 | 3871 | else |
e3285237 LP |
3872 | 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); |
3873 | ||
3874 | return false; | |
9711848f LP |
3875 | } |
3876 | ||
e3285237 LP |
3877 | return true; |
3878 | } | |
3879 | ||
99b43caf JK |
3880 | static void service_force_watchdog(Service *s) { |
3881 | if (!UNIT(s)->manager->service_watchdogs) | |
3882 | return; | |
3883 | ||
3884 | log_unit_error(UNIT(s), "Watchdog request (last status: %s)!", | |
3885 | s->status_text ? s->status_text : "<unset>"); | |
3886 | ||
3887 | service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_WATCHDOG); | |
3888 | } | |
3889 | ||
db256aab LP |
3890 | static void service_notify_message( |
3891 | Unit *u, | |
3892 | const struct ucred *ucred, | |
fcee2755 | 3893 | char * const *tags, |
db256aab LP |
3894 | FDSet *fds) { |
3895 | ||
e3285237 LP |
3896 | Service *s = SERVICE(u); |
3897 | bool notify_dbus = false; | |
3898 | const char *e; | |
fcee2755 | 3899 | char * const *i; |
db256aab | 3900 | int r; |
e3285237 LP |
3901 | |
3902 | assert(u); | |
db256aab | 3903 | assert(ucred); |
e3285237 | 3904 | |
fcee2755 | 3905 | if (!service_notify_message_authorized(SERVICE(u), ucred->pid, fds)) |
e3285237 LP |
3906 | return; |
3907 | ||
f1d34068 | 3908 | if (DEBUG_LOGGING) { |
9711848f LP |
3909 | _cleanup_free_ char *cc = NULL; |
3910 | ||
3911 | cc = strv_join(tags, ", "); | |
db256aab | 3912 | log_unit_debug(u, "Got notification message from PID "PID_FMT" (%s)", ucred->pid, isempty(cc) ? "n/a" : cc); |
9711848f | 3913 | } |
c952c6ec | 3914 | |
8c47c732 | 3915 | /* Interpret MAINPID= */ |
28849dba | 3916 | e = strv_find_startswith(tags, "MAINPID="); |
5e56b378 | 3917 | if (e && IN_SET(s->state, SERVICE_START, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) { |
db256aab LP |
3918 | pid_t new_main_pid; |
3919 | ||
3920 | if (parse_pid(e, &new_main_pid) < 0) | |
3921 | log_unit_warning(u, "Failed to parse MAINPID= field in notification message, ignoring: %s", e); | |
3922 | else if (!s->main_pid_known || new_main_pid != s->main_pid) { | |
3923 | ||
3924 | r = service_is_suitable_main_pid(s, new_main_pid, LOG_WARNING); | |
3925 | if (r == 0) { | |
5238e957 | 3926 | /* The new main PID is a bit suspicious, which is OK if the sender is privileged. */ |
db256aab LP |
3927 | |
3928 | if (ucred->uid == 0) { | |
3929 | 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); | |
3930 | r = 1; | |
3931 | } else | |
3932 | log_unit_debug(u, "New main PID "PID_FMT" does not belong to service, refusing.", new_main_pid); | |
3933 | } | |
3934 | if (r > 0) { | |
3935 | service_set_main_pid(s, new_main_pid); | |
cdc2af3e | 3936 | |
f75f613d | 3937 | r = unit_watch_pid(UNIT(s), new_main_pid, false); |
cdc2af3e LP |
3938 | if (r < 0) |
3939 | log_unit_warning_errno(UNIT(s), r, "Failed to watch new main PID "PID_FMT" for service: %m", new_main_pid); | |
3940 | ||
db256aab LP |
3941 | notify_dbus = true; |
3942 | } | |
8c47c732 LP |
3943 | } |
3944 | } | |
3945 | ||
cc2b7b11 LP |
3946 | /* Interpret READY=/STOPPING=/RELOADING=. Last one wins. */ |
3947 | STRV_FOREACH_BACKWARDS(i, tags) { | |
308d72dc | 3948 | |
cc2b7b11 LP |
3949 | if (streq(*i, "READY=1")) { |
3950 | s->notify_state = NOTIFY_READY; | |
308d72dc | 3951 | |
cc2b7b11 LP |
3952 | /* Type=notify services inform us about completed |
3953 | * initialization with READY=1 */ | |
3954 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START) | |
3955 | service_enter_start_post(s); | |
308d72dc | 3956 | |
cc2b7b11 LP |
3957 | /* Sending READY=1 while we are reloading informs us |
3958 | * that the reloading is complete */ | |
3959 | if (s->state == SERVICE_RELOAD && s->control_pid == 0) | |
3960 | service_enter_running(s, SERVICE_SUCCESS); | |
308d72dc | 3961 | |
cc2b7b11 LP |
3962 | notify_dbus = true; |
3963 | break; | |
308d72dc | 3964 | |
cc2b7b11 LP |
3965 | } else if (streq(*i, "RELOADING=1")) { |
3966 | s->notify_state = NOTIFY_RELOADING; | |
308d72dc | 3967 | |
cc2b7b11 LP |
3968 | if (s->state == SERVICE_RUNNING) |
3969 | service_enter_reload_by_notify(s); | |
308d72dc | 3970 | |
cc2b7b11 LP |
3971 | notify_dbus = true; |
3972 | break; | |
308d72dc | 3973 | |
cc2b7b11 LP |
3974 | } else if (streq(*i, "STOPPING=1")) { |
3975 | s->notify_state = NOTIFY_STOPPING; | |
308d72dc | 3976 | |
cc2b7b11 LP |
3977 | if (s->state == SERVICE_RUNNING) |
3978 | service_enter_stop_by_notify(s); | |
308d72dc | 3979 | |
cc2b7b11 LP |
3980 | notify_dbus = true; |
3981 | break; | |
3982 | } | |
8c47c732 LP |
3983 | } |
3984 | ||
3985 | /* Interpret STATUS= */ | |
28849dba | 3986 | e = strv_find_startswith(tags, "STATUS="); |
7f110ff9 | 3987 | if (e) { |
28849dba | 3988 | _cleanup_free_ char *t = NULL; |
8c47c732 | 3989 | |
28849dba | 3990 | if (!isempty(e)) { |
3eac1bca LP |
3991 | /* Note that this size limit check is mostly paranoia: since the datagram size we are willing |
3992 | * to process is already limited to NOTIFY_BUFFER_MAX, this limit here should never be hit. */ | |
3993 | if (strlen(e) > STATUS_TEXT_MAX) | |
3994 | log_unit_warning(u, "Status message overly long (%zu > %u), ignoring.", strlen(e), STATUS_TEXT_MAX); | |
3995 | else if (!utf8_is_valid(e)) | |
3996 | log_unit_warning(u, "Status message in notification message is not UTF-8 clean, ignoring."); | |
28849dba | 3997 | else { |
28849dba LP |
3998 | t = strdup(e); |
3999 | if (!t) | |
4000 | log_oom(); | |
3a2776bc | 4001 | } |
28849dba | 4002 | } |
8c47c732 | 4003 | |
30b5275a | 4004 | if (!streq_ptr(s->status_text, t)) { |
3b319885 | 4005 | free_and_replace(s->status_text, t); |
30b5275a | 4006 | notify_dbus = true; |
28849dba | 4007 | } |
8c47c732 | 4008 | } |
842129f5 | 4009 | |
4774e357 | 4010 | /* Interpret ERRNO= */ |
28849dba | 4011 | e = strv_find_startswith(tags, "ERRNO="); |
4774e357 MAA |
4012 | if (e) { |
4013 | int status_errno; | |
4014 | ||
2fa40742 LP |
4015 | status_errno = parse_errno(e); |
4016 | if (status_errno < 0) | |
4017 | log_unit_warning_errno(u, status_errno, | |
5e1ee764 | 4018 | "Failed to parse ERRNO= field value '%s' in notification message: %m", e); |
2fa40742 LP |
4019 | else if (s->status_errno != status_errno) { |
4020 | s->status_errno = status_errno; | |
4021 | notify_dbus = true; | |
4774e357 MAA |
4022 | } |
4023 | } | |
4024 | ||
a327431b DB |
4025 | /* Interpret EXTEND_TIMEOUT= */ |
4026 | e = strv_find_startswith(tags, "EXTEND_TIMEOUT_USEC="); | |
4027 | if (e) { | |
4028 | usec_t extend_timeout_usec; | |
4029 | if (safe_atou64(e, &extend_timeout_usec) < 0) | |
4030 | log_unit_warning(u, "Failed to parse EXTEND_TIMEOUT_USEC=%s", e); | |
4031 | else | |
4032 | service_extend_timeout(s, extend_timeout_usec); | |
4033 | } | |
4034 | ||
6f285378 | 4035 | /* Interpret WATCHDOG= */ |
99b43caf JK |
4036 | e = strv_find_startswith(tags, "WATCHDOG="); |
4037 | if (e) { | |
4038 | if (streq(e, "1")) | |
4039 | service_reset_watchdog(s); | |
4040 | else if (streq(e, "trigger")) | |
4041 | service_force_watchdog(s); | |
4042 | else | |
4043 | log_unit_warning(u, "Passed WATCHDOG= field is invalid, ignoring."); | |
4044 | } | |
c4e2ceae | 4045 | |
c45d11cb LP |
4046 | e = strv_find_startswith(tags, "WATCHDOG_USEC="); |
4047 | if (e) { | |
4048 | usec_t watchdog_override_usec; | |
4049 | if (safe_atou64(e, &watchdog_override_usec) < 0) | |
4050 | log_unit_warning(u, "Failed to parse WATCHDOG_USEC=%s", e); | |
4051 | else | |
95d0d8ed | 4052 | service_override_watchdog_timeout(s, watchdog_override_usec); |
c45d11cb LP |
4053 | } |
4054 | ||
e78ee06d LP |
4055 | /* Process FD store messages. Either FDSTOREREMOVE=1 for removal, or FDSTORE=1 for addition. In both cases, |
4056 | * process FDNAME= for picking the file descriptor name to use. Note that FDNAME= is required when removing | |
4057 | * fds, but optional when pushing in new fds, for compatibility reasons. */ | |
4058 | if (strv_find(tags, "FDSTOREREMOVE=1")) { | |
4059 | const char *name; | |
4060 | ||
4061 | name = strv_find_startswith(tags, "FDNAME="); | |
4062 | if (!name || !fdname_is_valid(name)) | |
4063 | log_unit_warning(u, "FDSTOREREMOVE=1 requested, but no valid file descriptor name passed, ignoring."); | |
4064 | else | |
4065 | service_remove_fd_store(s, name); | |
4066 | ||
4067 | } else if (strv_find(tags, "FDSTORE=1")) { | |
8dd4c05b LP |
4068 | const char *name; |
4069 | ||
4070 | name = strv_find_startswith(tags, "FDNAME="); | |
4071 | if (name && !fdname_is_valid(name)) { | |
4072 | log_unit_warning(u, "Passed FDNAME= name is invalid, ignoring."); | |
4073 | name = NULL; | |
4074 | } | |
4075 | ||
cb5a46b8 | 4076 | (void) service_add_fd_store_set(s, fds, name, !strv_contains(tags, "FDPOLL=0")); |
8dd4c05b | 4077 | } |
a354329f | 4078 | |
c4e2ceae | 4079 | /* Notify clients about changed status or main pid */ |
30b5275a LP |
4080 | if (notify_dbus) |
4081 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
4082 | } |
4083 | ||
7a7821c8 | 4084 | static int service_get_timeout(Unit *u, usec_t *timeout) { |
68db7a3b | 4085 | Service *s = SERVICE(u); |
7a7821c8 | 4086 | uint64_t t; |
68db7a3b ZJS |
4087 | int r; |
4088 | ||
4089 | if (!s->timer_event_source) | |
4090 | return 0; | |
4091 | ||
7a7821c8 | 4092 | r = sd_event_source_get_time(s->timer_event_source, &t); |
68db7a3b ZJS |
4093 | if (r < 0) |
4094 | return r; | |
7a7821c8 LP |
4095 | if (t == USEC_INFINITY) |
4096 | return 0; | |
68db7a3b | 4097 | |
7a7821c8 | 4098 | *timeout = t; |
68db7a3b ZJS |
4099 | return 1; |
4100 | } | |
4101 | ||
fc67a943 | 4102 | static void service_bus_name_owner_change(Unit *u, const char *new_owner) { |
05e343b7 LP |
4103 | |
4104 | Service *s = SERVICE(u); | |
718db961 | 4105 | int r; |
05e343b7 LP |
4106 | |
4107 | assert(s); | |
05e343b7 | 4108 | |
fc67a943 LP |
4109 | if (new_owner) |
4110 | log_unit_debug(u, "D-Bus name %s now owned by %s", s->bus_name, new_owner); | |
05e343b7 | 4111 | else |
fc67a943 | 4112 | log_unit_debug(u, "D-Bus name %s now not owned by anyone.", s->bus_name); |
05e343b7 LP |
4113 | |
4114 | s->bus_name_good = !!new_owner; | |
4115 | ||
d8ccf5fd DM |
4116 | /* Track the current owner, so we can reconstruct changes after a daemon reload */ |
4117 | r = free_and_strdup(&s->bus_name_owner, new_owner); | |
4118 | if (r < 0) { | |
4119 | log_unit_error_errno(u, r, "Unable to set new bus name owner %s: %m", new_owner); | |
4120 | return; | |
4121 | } | |
4122 | ||
05e343b7 LP |
4123 | if (s->type == SERVICE_DBUS) { |
4124 | ||
4125 | /* service_enter_running() will figure out what to | |
4126 | * do */ | |
4127 | if (s->state == SERVICE_RUNNING) | |
f42806df | 4128 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
4129 | else if (s->state == SERVICE_START && new_owner) |
4130 | service_enter_start_post(s); | |
4131 | ||
4132 | } else if (new_owner && | |
4133 | s->main_pid <= 0 && | |
a6951a50 LP |
4134 | IN_SET(s->state, |
4135 | SERVICE_START, | |
4136 | SERVICE_START_POST, | |
4137 | SERVICE_RUNNING, | |
4138 | SERVICE_RELOAD)) { | |
05e343b7 | 4139 | |
4afd3348 | 4140 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
718db961 | 4141 | pid_t pid; |
05e343b7 | 4142 | |
718db961 | 4143 | /* Try to acquire PID from bus service */ |
05e343b7 | 4144 | |
a5a8776a | 4145 | r = sd_bus_get_name_creds(u->manager->api_bus, s->bus_name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
4146 | if (r >= 0) |
4147 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 | 4148 | if (r >= 0) { |
a5a8776a | 4149 | log_unit_debug(u, "D-Bus name %s is now owned by process " PID_FMT, s->bus_name, pid); |
05e343b7 | 4150 | |
718db961 | 4151 | service_set_main_pid(s, pid); |
f75f613d | 4152 | unit_watch_pid(UNIT(s), pid, false); |
718db961 | 4153 | } |
7400b9d2 | 4154 | } |
05e343b7 LP |
4155 | } |
4156 | ||
16115b0a | 4157 | int service_set_socket_fd(Service *s, int fd, Socket *sock, bool selinux_context_net) { |
79a98c60 LP |
4158 | _cleanup_free_ char *peer = NULL; |
4159 | int r; | |
57020a3a | 4160 | |
4f2d528d LP |
4161 | assert(s); |
4162 | assert(fd >= 0); | |
4163 | ||
7f2fbbff LP |
4164 | /* This is called by the socket code when instantiating a new service for a stream socket and the socket needs |
4165 | * to be configured. We take ownership of the passed fd on success. */ | |
4f2d528d | 4166 | |
1124fe6f | 4167 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
4168 | return -EINVAL; |
4169 | ||
4170 | if (s->socket_fd >= 0) | |
4171 | return -EBUSY; | |
4172 | ||
4173 | if (s->state != SERVICE_DEAD) | |
4174 | return -EAGAIN; | |
4175 | ||
366b7db4 | 4176 | if (getpeername_pretty(fd, true, &peer) >= 0) { |
79a98c60 LP |
4177 | |
4178 | if (UNIT(s)->description) { | |
4179 | _cleanup_free_ char *a; | |
4180 | ||
605405c6 | 4181 | a = strjoin(UNIT(s)->description, " (", peer, ")"); |
79a98c60 LP |
4182 | if (!a) |
4183 | return -ENOMEM; | |
4184 | ||
4185 | r = unit_set_description(UNIT(s), a); | |
4186 | } else | |
4187 | r = unit_set_description(UNIT(s), peer); | |
4188 | ||
4189 | if (r < 0) | |
4190 | return r; | |
4191 | } | |
4192 | ||
eef85c4a | 4193 | r = unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false, UNIT_DEPENDENCY_IMPLICIT); |
7f2fbbff LP |
4194 | if (r < 0) |
4195 | return r; | |
4196 | ||
4f2d528d | 4197 | s->socket_fd = fd; |
16115b0a | 4198 | s->socket_fd_selinux_context_net = selinux_context_net; |
6cf6bbc2 | 4199 | |
7f7d01ed | 4200 | unit_ref_set(&s->accept_socket, UNIT(s), UNIT(sock)); |
7f2fbbff | 4201 | return 0; |
4f2d528d LP |
4202 | } |
4203 | ||
fdf20a31 | 4204 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
4205 | Service *s = SERVICE(u); |
4206 | ||
4207 | assert(s); | |
4208 | ||
fdf20a31 | 4209 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
4210 | service_set_state(s, SERVICE_DEAD); |
4211 | ||
f42806df LP |
4212 | s->result = SERVICE_SUCCESS; |
4213 | s->reload_result = SERVICE_SUCCESS; | |
4c2f5842 | 4214 | s->clean_result = SERVICE_SUCCESS; |
7a0019d3 LP |
4215 | s->n_restarts = 0; |
4216 | s->flush_n_restarts = false; | |
5632e374 LP |
4217 | } |
4218 | ||
718db961 | 4219 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 4220 | Service *s = SERVICE(u); |
41efeaec | 4221 | |
a6951a50 LP |
4222 | assert(s); |
4223 | ||
814cc562 | 4224 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
4225 | } |
4226 | ||
291d565a LP |
4227 | static int service_main_pid(Unit *u) { |
4228 | Service *s = SERVICE(u); | |
4229 | ||
4230 | assert(s); | |
4231 | ||
4232 | return s->main_pid; | |
4233 | } | |
4234 | ||
4235 | static int service_control_pid(Unit *u) { | |
4236 | Service *s = SERVICE(u); | |
4237 | ||
4238 | assert(s); | |
4239 | ||
4240 | return s->control_pid; | |
4241 | } | |
4242 | ||
bb2c7685 LP |
4243 | static bool service_needs_console(Unit *u) { |
4244 | Service *s = SERVICE(u); | |
4245 | ||
4246 | assert(s); | |
4247 | ||
4248 | /* We provide our own implementation of this here, instead of relying of the generic implementation | |
4249 | * unit_needs_console() provides, since we want to return false if we are in SERVICE_EXITED state. */ | |
4250 | ||
4251 | if (!exec_context_may_touch_console(&s->exec_context)) | |
4252 | return false; | |
4253 | ||
4254 | return IN_SET(s->state, | |
31cd5f63 | 4255 | SERVICE_CONDITION, |
bb2c7685 LP |
4256 | SERVICE_START_PRE, |
4257 | SERVICE_START, | |
4258 | SERVICE_START_POST, | |
4259 | SERVICE_RUNNING, | |
4260 | SERVICE_RELOAD, | |
4261 | SERVICE_STOP, | |
c87700a1 | 4262 | SERVICE_STOP_WATCHDOG, |
bb2c7685 LP |
4263 | SERVICE_STOP_SIGTERM, |
4264 | SERVICE_STOP_SIGKILL, | |
4265 | SERVICE_STOP_POST, | |
4266 | SERVICE_FINAL_SIGTERM, | |
4267 | SERVICE_FINAL_SIGKILL); | |
4268 | } | |
4269 | ||
7af67e9a LP |
4270 | static int service_exit_status(Unit *u) { |
4271 | Service *s = SERVICE(u); | |
4272 | ||
4273 | assert(u); | |
4274 | ||
4275 | if (s->main_exec_status.pid <= 0 || | |
4276 | !dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) | |
4277 | return -ENODATA; | |
4278 | ||
4279 | if (s->main_exec_status.code != CLD_EXITED) | |
4280 | return -EBADE; | |
4281 | ||
4282 | return s->main_exec_status.status; | |
4283 | } | |
4284 | ||
4c2f5842 LP |
4285 | static int service_clean(Unit *u, ExecCleanMask mask) { |
4286 | _cleanup_strv_free_ char **l = NULL; | |
4287 | Service *s = SERVICE(u); | |
4c2f5842 LP |
4288 | int r; |
4289 | ||
4290 | assert(s); | |
4291 | assert(mask != 0); | |
4292 | ||
4293 | if (s->state != SERVICE_DEAD) | |
4294 | return -EBUSY; | |
4295 | ||
4296 | r = exec_context_get_clean_directories(&s->exec_context, u->manager->prefix, mask, &l); | |
4297 | if (r < 0) | |
4298 | return r; | |
4299 | ||
4300 | if (strv_isempty(l)) | |
4301 | return -EUNATCH; | |
4302 | ||
4303 | service_unwatch_control_pid(s); | |
4304 | s->clean_result = SERVICE_SUCCESS; | |
4305 | s->control_command = NULL; | |
4306 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
4307 | ||
12213aed | 4308 | r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC), s->exec_context.timeout_clean_usec)); |
4c2f5842 LP |
4309 | if (r < 0) |
4310 | goto fail; | |
4311 | ||
810ef318 | 4312 | r = unit_fork_and_watch_rm_rf(u, l, &s->control_pid); |
4c2f5842 LP |
4313 | if (r < 0) |
4314 | goto fail; | |
4315 | ||
4c2f5842 LP |
4316 | service_set_state(s, SERVICE_CLEANING); |
4317 | ||
4318 | return 0; | |
4319 | ||
4320 | fail: | |
810ef318 | 4321 | log_unit_warning_errno(u, r, "Failed to initiate cleaning: %m"); |
4c2f5842 LP |
4322 | s->clean_result = SERVICE_FAILURE_RESOURCES; |
4323 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
4324 | return r; | |
4325 | } | |
4326 | ||
4327 | static int service_can_clean(Unit *u, ExecCleanMask *ret) { | |
4328 | Service *s = SERVICE(u); | |
4329 | ||
4330 | assert(s); | |
4331 | ||
4332 | return exec_context_get_clean_mask(&s->exec_context, ret); | |
4333 | } | |
4334 | ||
eda0cbf0 ZJS |
4335 | static const char *service_finished_job(Unit *u, JobType t, JobResult result) { |
4336 | if (t == JOB_START && result == JOB_DONE) { | |
4337 | Service *s = SERVICE(u); | |
4338 | ||
4339 | if (s->type == SERVICE_ONESHOT) | |
4340 | return "Finished %s."; | |
4341 | } | |
4342 | ||
4343 | /* Fall back to generic */ | |
4344 | return NULL; | |
4345 | } | |
4346 | ||
94f04347 | 4347 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { |
525ee6f4 LP |
4348 | [SERVICE_RESTART_NO] = "no", |
4349 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 4350 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
6cfe2fde | 4351 | [SERVICE_RESTART_ON_ABNORMAL] = "on-abnormal", |
dc99a976 | 4352 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb | 4353 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
6cfe2fde | 4354 | [SERVICE_RESTART_ALWAYS] = "always", |
94f04347 LP |
4355 | }; |
4356 | ||
4357 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
4358 | ||
4359 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 4360 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 4361 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 4362 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 4363 | [SERVICE_DBUS] = "dbus", |
f2b68789 | 4364 | [SERVICE_NOTIFY] = "notify", |
5686391b LP |
4365 | [SERVICE_IDLE] = "idle", |
4366 | [SERVICE_EXEC] = "exec", | |
94f04347 LP |
4367 | }; |
4368 | ||
4369 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
4370 | ||
e537352b | 4371 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
31cd5f63 | 4372 | [SERVICE_EXEC_CONDITION] = "ExecCondition", |
94f04347 LP |
4373 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
4374 | [SERVICE_EXEC_START] = "ExecStart", | |
4375 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
4376 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
4377 | [SERVICE_EXEC_STOP] = "ExecStop", | |
4378 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
4379 | }; | |
4380 | ||
4381 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
4382 | ||
b3d59367 | 4383 | static const char* const service_exec_ex_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
898fc00e | 4384 | [SERVICE_EXEC_CONDITION] = "ExecConditionEx", |
b3d59367 AZ |
4385 | [SERVICE_EXEC_START_PRE] = "ExecStartPreEx", |
4386 | [SERVICE_EXEC_START] = "ExecStartEx", | |
4387 | [SERVICE_EXEC_START_POST] = "ExecStartPostEx", | |
898fc00e AZ |
4388 | [SERVICE_EXEC_RELOAD] = "ExecReloadEx", |
4389 | [SERVICE_EXEC_STOP] = "ExecStopEx", | |
4390 | [SERVICE_EXEC_STOP_POST] = "ExecStopPostEx", | |
b3d59367 AZ |
4391 | }; |
4392 | ||
4393 | DEFINE_STRING_TABLE_LOOKUP(service_exec_ex_command, ServiceExecCommand); | |
4394 | ||
308d72dc LP |
4395 | static const char* const notify_state_table[_NOTIFY_STATE_MAX] = { |
4396 | [NOTIFY_UNKNOWN] = "unknown", | |
4397 | [NOTIFY_READY] = "ready", | |
4398 | [NOTIFY_RELOADING] = "reloading", | |
4399 | [NOTIFY_STOPPING] = "stopping", | |
4400 | }; | |
4401 | ||
4402 | DEFINE_STRING_TABLE_LOOKUP(notify_state, NotifyState); | |
4403 | ||
f42806df LP |
4404 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
4405 | [SERVICE_SUCCESS] = "success", | |
4406 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
c35755fb | 4407 | [SERVICE_FAILURE_PROTOCOL] = "protocol", |
f42806df LP |
4408 | [SERVICE_FAILURE_TIMEOUT] = "timeout", |
4409 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
4410 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 4411 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a | 4412 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
07299350 | 4413 | [SERVICE_FAILURE_START_LIMIT_HIT] = "start-limit-hit", |
afcfaa69 | 4414 | [SERVICE_FAILURE_OOM_KILL] = "oom-kill", |
31cd5f63 | 4415 | [SERVICE_SKIP_CONDITION] = "exec-condition", |
f42806df LP |
4416 | }; |
4417 | ||
4418 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
4419 | ||
87f0e418 | 4420 | const UnitVTable service_vtable = { |
7d17cfbc | 4421 | .object_size = sizeof(Service), |
718db961 LP |
4422 | .exec_context_offset = offsetof(Service, exec_context), |
4423 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
4424 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 4425 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
29206d46 | 4426 | .dynamic_creds_offset = offsetof(Service, dynamic_creds), |
3ef63c31 | 4427 | |
f975e971 LP |
4428 | .sections = |
4429 | "Unit\0" | |
4430 | "Service\0" | |
4431 | "Install\0", | |
4ad49000 | 4432 | .private_section = "Service", |
71645aca | 4433 | |
1d9cc876 LP |
4434 | .can_transient = true, |
4435 | .can_delegate = true, | |
c80a9a33 | 4436 | .can_fail = true, |
1d9cc876 | 4437 | |
034c6ed7 LP |
4438 | .init = service_init, |
4439 | .done = service_done, | |
a16e1123 | 4440 | .load = service_load, |
a354329f | 4441 | .release_resources = service_release_resources, |
a16e1123 LP |
4442 | |
4443 | .coldplug = service_coldplug, | |
034c6ed7 | 4444 | |
5cb5a6ff LP |
4445 | .dump = service_dump, |
4446 | ||
4447 | .start = service_start, | |
4448 | .stop = service_stop, | |
4449 | .reload = service_reload, | |
4450 | ||
034c6ed7 LP |
4451 | .can_reload = service_can_reload, |
4452 | ||
8a0867d6 | 4453 | .kill = service_kill, |
4c2f5842 LP |
4454 | .clean = service_clean, |
4455 | .can_clean = service_can_clean, | |
8a0867d6 | 4456 | |
d9e45bc3 MS |
4457 | .freeze = unit_freeze_vtable_common, |
4458 | .thaw = unit_thaw_vtable_common, | |
4459 | ||
a16e1123 LP |
4460 | .serialize = service_serialize, |
4461 | .deserialize_item = service_deserialize_item, | |
4462 | ||
5cb5a6ff | 4463 | .active_state = service_active_state, |
10a94420 | 4464 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 4465 | |
deb4e708 MK |
4466 | .will_restart = service_will_restart, |
4467 | ||
f2f725e5 | 4468 | .may_gc = service_may_gc, |
701cc384 | 4469 | |
034c6ed7 | 4470 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 4471 | |
fdf20a31 | 4472 | .reset_failed = service_reset_failed, |
5632e374 | 4473 | |
4ad49000 | 4474 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
afcfaa69 | 4475 | .notify_cgroup_oom = service_notify_cgroup_oom_event, |
8c47c732 | 4476 | .notify_message = service_notify_message, |
8e274523 | 4477 | |
291d565a LP |
4478 | .main_pid = service_main_pid, |
4479 | .control_pid = service_control_pid, | |
4480 | ||
05e343b7 | 4481 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 4482 | |
74c964d3 LP |
4483 | .bus_set_property = bus_service_set_property, |
4484 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 4485 | |
68db7a3b | 4486 | .get_timeout = service_get_timeout, |
bb2c7685 | 4487 | .needs_console = service_needs_console, |
7af67e9a | 4488 | .exit_status = service_exit_status, |
718db961 | 4489 | |
c6918296 MS |
4490 | .status_message_formats = { |
4491 | .starting_stopping = { | |
4492 | [0] = "Starting %s...", | |
4493 | [1] = "Stopping %s...", | |
4494 | }, | |
4495 | .finished_start_job = { | |
c6918296 | 4496 | [JOB_FAILED] = "Failed to start %s.", |
31cd5f63 | 4497 | [JOB_SKIPPED] = "Skipped %s.", |
c6918296 MS |
4498 | }, |
4499 | .finished_stop_job = { | |
4500 | [JOB_DONE] = "Stopped %s.", | |
4501 | [JOB_FAILED] = "Stopped (with error) %s.", | |
c6918296 | 4502 | }, |
eda0cbf0 | 4503 | .finished_job = service_finished_job, |
c6918296 | 4504 | }, |
5cb5a6ff | 4505 | }; |