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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5cb5a6ff | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
5cb5a6ff | 22 | #include <errno.h> |
034c6ed7 | 23 | #include <signal.h> |
2c4104f0 LP |
24 | #include <dirent.h> |
25 | #include <unistd.h> | |
4b939747 | 26 | #include <sys/reboot.h> |
5cb5a6ff | 27 | |
4b939747 | 28 | #include "manager.h" |
87f0e418 | 29 | #include "unit.h" |
5cb5a6ff LP |
30 | #include "service.h" |
31 | #include "load-fragment.h" | |
32 | #include "load-dropin.h" | |
034c6ed7 | 33 | #include "log.h" |
2c4104f0 | 34 | #include "strv.h" |
9e2f7c11 | 35 | #include "unit-name.h" |
41f9172f | 36 | #include "unit-printf.h" |
4139c1b2 | 37 | #include "dbus-service.h" |
514f4ef5 | 38 | #include "special.h" |
9a57c629 | 39 | #include "exit-status.h" |
f6a6225e | 40 | #include "def.h" |
9eb977db | 41 | #include "path-util.h" |
f6a6225e | 42 | #include "util.h" |
7f110ff9 | 43 | #include "utf8.h" |
4d1a6904 | 44 | #include "env-util.h" |
a5c32cff | 45 | #include "fileio.h" |
718db961 LP |
46 | #include "bus-error.h" |
47 | #include "bus-util.h" | |
034c6ed7 | 48 | |
07459bb6 | 49 | #ifdef HAVE_SYSV_COMPAT |
f34277d9 | 50 | |
f6a6225e | 51 | #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE) |
f34277d9 | 52 | |
09cd1ab1 LP |
53 | typedef enum RunlevelType { |
54 | RUNLEVEL_UP, | |
3cdebc21 | 55 | RUNLEVEL_DOWN |
09cd1ab1 LP |
56 | } RunlevelType; |
57 | ||
58 | static const struct { | |
59 | const char *path; | |
60 | const char *target; | |
61 | const RunlevelType type; | |
62 | } rcnd_table[] = { | |
9d25f5ed | 63 | /* Standard SysV runlevels for start-up */ |
514f4ef5 | 64 | { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP }, |
fbe9f3a9 LP |
65 | { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP }, |
66 | { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP }, | |
67 | { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP }, | |
68 | { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP }, | |
fbe9f3a9 | 69 | |
9d25f5ed LP |
70 | /* Standard SysV runlevels for shutdown */ |
71 | { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN }, | |
72 | { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN } | |
73 | ||
74 | /* Note that the order here matters, as we read the | |
75 | directories in this order, and we want to make sure that | |
76 | sysv_start_priority is known when we first load the | |
77 | unit. And that value we only know from S links. Hence | |
3cdebc21 | 78 | UP must be read before DOWN */ |
23a177ef LP |
79 | }; |
80 | ||
09cd1ab1 | 81 | #define RUNLEVELS_UP "12345" |
07459bb6 | 82 | #endif |
09cd1ab1 | 83 | |
acbb0225 | 84 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 LP |
85 | [SERVICE_DEAD] = UNIT_INACTIVE, |
86 | [SERVICE_START_PRE] = UNIT_ACTIVATING, | |
87 | [SERVICE_START] = UNIT_ACTIVATING, | |
88 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
89 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 90 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 91 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 LP |
92 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
93 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, | |
94 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
95 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
96 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
97 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 98 | [SERVICE_FAILED] = UNIT_FAILED, |
6124958c | 99 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING |
034c6ed7 | 100 | }; |
5cb5a6ff | 101 | |
e056b01d LP |
102 | /* For Type=idle we never want to delay any other jobs, hence we |
103 | * consider idle jobs active as soon as we start working on them */ | |
104 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
105 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
106 | [SERVICE_START_PRE] = UNIT_ACTIVE, | |
107 | [SERVICE_START] = UNIT_ACTIVE, | |
108 | [SERVICE_START_POST] = UNIT_ACTIVE, | |
109 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
110 | [SERVICE_EXITED] = UNIT_ACTIVE, | |
111 | [SERVICE_RELOAD] = UNIT_RELOADING, | |
112 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
113 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, | |
114 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
115 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
116 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
117 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
118 | [SERVICE_FAILED] = UNIT_FAILED, | |
119 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING | |
120 | }; | |
121 | ||
718db961 LP |
122 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata); |
123 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); | |
124 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); | |
125 | ||
a16e1123 LP |
126 | static void service_init(Unit *u) { |
127 | Service *s = SERVICE(u); | |
128 | ||
129 | assert(u); | |
ac155bb8 | 130 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 131 | |
1f19a534 OS |
132 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
133 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
134 | s->restart_usec = u->manager->default_restart_usec; | |
0b86feac | 135 | s->type = _SERVICE_TYPE_INVALID; |
bb242b7b | 136 | |
07459bb6 | 137 | #ifdef HAVE_SYSV_COMPAT |
a16e1123 | 138 | s->sysv_start_priority = -1; |
ea87ca5a | 139 | s->sysv_start_priority_from_rcnd = -1; |
07459bb6 | 140 | #endif |
a16e1123 | 141 | s->socket_fd = -1; |
3185a36b | 142 | s->guess_main_pid = true; |
a16e1123 LP |
143 | |
144 | exec_context_init(&s->exec_context); | |
4819ff03 | 145 | kill_context_init(&s->kill_context); |
4ad49000 | 146 | cgroup_context_init(&s->cgroup_context); |
a16e1123 | 147 | |
3f41e1e5 LN |
148 | RATELIMIT_INIT(s->start_limit, |
149 | u->manager->default_start_limit_interval, | |
150 | u->manager->default_start_limit_burst); | |
a16e1123 LP |
151 | |
152 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
153 | } | |
154 | ||
5e94833f LP |
155 | static void service_unwatch_control_pid(Service *s) { |
156 | assert(s); | |
157 | ||
158 | if (s->control_pid <= 0) | |
159 | return; | |
160 | ||
161 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
162 | s->control_pid = 0; | |
163 | } | |
164 | ||
165 | static void service_unwatch_main_pid(Service *s) { | |
166 | assert(s); | |
167 | ||
168 | if (s->main_pid <= 0) | |
169 | return; | |
170 | ||
171 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
172 | s->main_pid = 0; | |
173 | } | |
174 | ||
3e52541e MS |
175 | static void service_unwatch_pid_file(Service *s) { |
176 | if (!s->pid_file_pathspec) | |
177 | return; | |
178 | ||
66870f90 ZJS |
179 | log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s", |
180 | UNIT(s)->id, s->pid_file_pathspec->path); | |
718db961 | 181 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e MS |
182 | path_spec_done(s->pid_file_pathspec); |
183 | free(s->pid_file_pathspec); | |
184 | s->pid_file_pathspec = NULL; | |
185 | } | |
186 | ||
5925dd3c | 187 | static int service_set_main_pid(Service *s, pid_t pid) { |
e55224ca LP |
188 | pid_t ppid; |
189 | ||
5925dd3c LP |
190 | assert(s); |
191 | ||
192 | if (pid <= 1) | |
193 | return -EINVAL; | |
194 | ||
195 | if (pid == getpid()) | |
196 | return -EINVAL; | |
197 | ||
7400b9d2 LP |
198 | if (s->main_pid == pid && s->main_pid_known) |
199 | return 0; | |
200 | ||
201 | if (s->main_pid != pid) { | |
202 | service_unwatch_main_pid(s); | |
203 | exec_status_start(&s->main_exec_status, pid); | |
204 | } | |
41efeaec | 205 | |
6dfa5494 LP |
206 | s->main_pid = pid; |
207 | s->main_pid_known = true; | |
208 | ||
209 | if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) { | |
66870f90 ZJS |
210 | log_warning_unit(UNIT(s)->id, |
211 | "%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.", | |
212 | UNIT(s)->id, (unsigned long) pid); | |
e55224ca | 213 | |
6dfa5494 LP |
214 | s->main_pid_alien = true; |
215 | } else | |
216 | s->main_pid_alien = false; | |
5925dd3c LP |
217 | |
218 | return 0; | |
219 | } | |
220 | ||
4f2d528d LP |
221 | static void service_close_socket_fd(Service *s) { |
222 | assert(s); | |
223 | ||
224 | if (s->socket_fd < 0) | |
225 | return; | |
226 | ||
227 | close_nointr_nofail(s->socket_fd); | |
228 | s->socket_fd = -1; | |
229 | } | |
230 | ||
6cf6bbc2 LP |
231 | static void service_connection_unref(Service *s) { |
232 | assert(s); | |
233 | ||
9444b1f2 | 234 | if (!UNIT_ISSET(s->accept_socket)) |
6cf6bbc2 LP |
235 | return; |
236 | ||
57020a3a LP |
237 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); |
238 | unit_ref_unset(&s->accept_socket); | |
6cf6bbc2 LP |
239 | } |
240 | ||
a6927d7f MO |
241 | static void service_stop_watchdog(Service *s) { |
242 | assert(s); | |
243 | ||
718db961 LP |
244 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
245 | s->watchdog_timestamp = (struct dual_timestamp) { 0, 0 }; | |
a6927d7f MO |
246 | } |
247 | ||
9e9c3abc | 248 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
bb242b7b MO |
249 | |
250 | static void service_handle_watchdog(Service *s) { | |
718db961 | 251 | usec_t nw; |
bb242b7b MO |
252 | int r; |
253 | ||
254 | assert(s); | |
255 | ||
256 | if (s->watchdog_usec == 0) | |
257 | return; | |
258 | ||
718db961 LP |
259 | nw = now(CLOCK_MONOTONIC); |
260 | if (nw >= s->watchdog_timestamp.monotonic + s->watchdog_usec) { | |
66870f90 | 261 | log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id); |
af471339 | 262 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_WATCHDOG); |
bb242b7b MO |
263 | return; |
264 | } | |
265 | ||
718db961 LP |
266 | if (s->watchdog_event_source) { |
267 | r = sd_event_source_set_time(s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec); | |
268 | if (r < 0) { | |
269 | log_warning_unit(UNIT(s)->id, "%s failed to reset watchdog timer: %s", UNIT(s)->id, strerror(-r)); | |
270 | return; | |
271 | } | |
272 | ||
273 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ON); | |
274 | } else | |
275 | r = sd_event_add_monotonic(UNIT(s)->manager->event, s->watchdog_timestamp.monotonic + s->watchdog_usec, 0, service_dispatch_watchdog, s, &s->watchdog_event_source); | |
276 | ||
bb242b7b | 277 | if (r < 0) |
66870f90 ZJS |
278 | log_warning_unit(UNIT(s)->id, |
279 | "%s failed to install watchdog timer: %s", | |
280 | UNIT(s)->id, strerror(-r)); | |
bb242b7b MO |
281 | } |
282 | ||
a6927d7f MO |
283 | static void service_reset_watchdog(Service *s) { |
284 | assert(s); | |
285 | ||
286 | dual_timestamp_get(&s->watchdog_timestamp); | |
bb242b7b | 287 | service_handle_watchdog(s); |
a6927d7f MO |
288 | } |
289 | ||
87f0e418 LP |
290 | static void service_done(Unit *u) { |
291 | Service *s = SERVICE(u); | |
44d8db9e LP |
292 | |
293 | assert(s); | |
294 | ||
295 | free(s->pid_file); | |
296 | s->pid_file = NULL; | |
297 | ||
07459bb6 | 298 | #ifdef HAVE_SYSV_COMPAT |
8309400a LP |
299 | free(s->sysv_runlevels); |
300 | s->sysv_runlevels = NULL; | |
07459bb6 | 301 | #endif |
8309400a | 302 | |
8c47c732 LP |
303 | free(s->status_text); |
304 | s->status_text = NULL; | |
305 | ||
4ad49000 | 306 | cgroup_context_done(&s->cgroup_context); |
613b411c LP |
307 | exec_context_done(&s->exec_context); |
308 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
e537352b | 309 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 310 | s->control_command = NULL; |
867b3b7d | 311 | s->main_command = NULL; |
44d8db9e | 312 | |
96342de6 LN |
313 | set_free(s->restart_ignore_status.code); |
314 | s->restart_ignore_status.code = NULL; | |
315 | set_free(s->restart_ignore_status.signal); | |
316 | s->restart_ignore_status.signal = NULL; | |
317 | ||
318 | set_free(s->success_status.code); | |
319 | s->success_status.code = NULL; | |
320 | set_free(s->success_status.signal); | |
321 | s->success_status.signal = NULL; | |
322 | ||
44d8db9e LP |
323 | /* This will leak a process, but at least no memory or any of |
324 | * our resources */ | |
5e94833f LP |
325 | service_unwatch_main_pid(s); |
326 | service_unwatch_control_pid(s); | |
3e52541e | 327 | service_unwatch_pid_file(s); |
44d8db9e | 328 | |
05e343b7 | 329 | if (s->bus_name) { |
ac155bb8 | 330 | unit_unwatch_bus_name(u, s->bus_name); |
05e343b7 LP |
331 | free(s->bus_name); |
332 | s->bus_name = NULL; | |
333 | } | |
334 | ||
4f2d528d | 335 | service_close_socket_fd(s); |
6cf6bbc2 | 336 | service_connection_unref(s); |
4f2d528d | 337 | |
57020a3a | 338 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 339 | |
bb242b7b MO |
340 | service_stop_watchdog(s); |
341 | ||
718db961 LP |
342 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
343 | } | |
344 | ||
345 | static int service_arm_timer(Service *s, usec_t usec) { | |
346 | int r; | |
347 | ||
348 | assert(s); | |
349 | ||
718db961 LP |
350 | if (s->timer_event_source) { |
351 | r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec); | |
352 | if (r < 0) | |
353 | return r; | |
354 | ||
355 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
356 | } | |
357 | ||
358 | return sd_event_add_monotonic(UNIT(s)->manager->event, now(CLOCK_MONOTONIC) + usec, 0, service_dispatch_timer, s, &s->timer_event_source); | |
44d8db9e LP |
359 | } |
360 | ||
07459bb6 | 361 | #ifdef HAVE_SYSV_COMPAT |
b7ccee3c LP |
362 | static char *sysv_translate_name(const char *name) { |
363 | char *r; | |
364 | ||
5d4caf56 LP |
365 | r = new(char, strlen(name) + sizeof(".service")); |
366 | if (!r) | |
b7ccee3c LP |
367 | return NULL; |
368 | ||
5b819198 | 369 | if (endswith(name, ".sh")) |
85a3fa0e | 370 | /* Drop .sh suffix */ |
5b819198 | 371 | strcpy(stpcpy(r, name) - 3, ".service"); |
b7ccee3c | 372 | else |
85a3fa0e | 373 | /* Normal init script name */ |
b7ccee3c LP |
374 | strcpy(stpcpy(r, name), ".service"); |
375 | ||
376 | return r; | |
377 | } | |
378 | ||
ee95669f | 379 | static int sysv_translate_facility(const char *name, const char *filename, char **_r) { |
2c4104f0 | 380 | |
a7d3cc26 LP |
381 | /* We silently ignore the $ prefix here. According to the LSB |
382 | * spec it simply indicates whether something is a | |
383 | * standardized name or a distribution-specific one. Since we | |
384 | * just follow what already exists and do not introduce new | |
385 | * uses or names we don't care who introduced a new name. */ | |
386 | ||
2c4104f0 | 387 | static const char * const table[] = { |
6464aa08 | 388 | /* LSB defined facilities */ |
5d4caf56 | 389 | "local_fs", NULL, |
a7d3cc26 LP |
390 | "network", SPECIAL_NETWORK_TARGET, |
391 | "named", SPECIAL_NSS_LOOKUP_TARGET, | |
392 | "portmap", SPECIAL_RPCBIND_TARGET, | |
393 | "remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
5d4caf56 | 394 | "syslog", NULL, |
4466194c | 395 | "time", SPECIAL_TIME_SYNC_TARGET, |
2c4104f0 LP |
396 | }; |
397 | ||
398 | unsigned i; | |
399 | char *r; | |
ee95669f | 400 | const char *n; |
2c4104f0 | 401 | |
ee95669f LP |
402 | assert(name); |
403 | assert(_r); | |
a7d3cc26 | 404 | |
ee95669f | 405 | n = *name == '$' ? name + 1 : name; |
a7d3cc26 | 406 | |
ee95669f | 407 | for (i = 0; i < ELEMENTSOF(table); i += 2) { |
a7d3cc26 | 408 | |
ee95669f LP |
409 | if (!streq(table[i], n)) |
410 | continue; | |
2c4104f0 | 411 | |
ee95669f LP |
412 | if (!table[i+1]) |
413 | return 0; | |
414 | ||
5d4caf56 LP |
415 | r = strdup(table[i+1]); |
416 | if (!r) | |
417 | return log_oom(); | |
ee95669f LP |
418 | |
419 | goto finish; | |
420 | } | |
2c4104f0 | 421 | |
a7d3cc26 | 422 | /* If we don't know this name, fallback heuristics to figure |
0003d1ab | 423 | * out whether something is a target or a service alias. */ |
a7d3cc26 | 424 | |
e83c7c0b LP |
425 | if (*name == '$') { |
426 | if (!unit_prefix_is_valid(n)) | |
427 | return -EINVAL; | |
428 | ||
ee95669f LP |
429 | /* Facilities starting with $ are most likely targets */ |
430 | r = unit_name_build(n, NULL, ".target"); | |
e83c7c0b | 431 | } else if (filename && streq(name, filename)) |
35b8ca3a | 432 | /* Names equaling the file name of the services are redundant */ |
ee95669f | 433 | return 0; |
32159d3a | 434 | else |
ee95669f LP |
435 | /* Everything else we assume to be normal service names */ |
436 | r = sysv_translate_name(n); | |
2c4104f0 | 437 | |
32159d3a | 438 | if (!r) |
2c4104f0 LP |
439 | return -ENOMEM; |
440 | ||
441 | finish: | |
b4353094 | 442 | *_r = r; |
2c4104f0 LP |
443 | |
444 | return 1; | |
445 | } | |
446 | ||
56d748b4 | 447 | static int sysv_fix_order(Service *s) { |
ac155bb8 | 448 | Unit *other; |
2c4104f0 LP |
449 | int r; |
450 | ||
451 | assert(s); | |
452 | ||
453 | if (s->sysv_start_priority < 0) | |
454 | return 0; | |
455 | ||
23a177ef LP |
456 | /* For each pair of services where at least one lacks a LSB |
457 | * header, we use the start priority value to order things. */ | |
2c4104f0 | 458 | |
1124fe6f | 459 | LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) { |
2c4104f0 LP |
460 | Service *t; |
461 | UnitDependency d; | |
eeaafddc | 462 | bool special_s, special_t; |
2c4104f0 | 463 | |
595ed347 | 464 | t = SERVICE(other); |
2c4104f0 LP |
465 | |
466 | if (s == t) | |
467 | continue; | |
9f151f29 | 468 | |
1124fe6f | 469 | if (UNIT(t)->load_state != UNIT_LOADED) |
9f151f29 | 470 | continue; |
2c4104f0 LP |
471 | |
472 | if (t->sysv_start_priority < 0) | |
473 | continue; | |
474 | ||
51a1a79d LP |
475 | /* If both units have modern headers we don't care |
476 | * about the priorities */ | |
1124fe6f MS |
477 | if ((UNIT(s)->fragment_path || s->sysv_has_lsb) && |
478 | (UNIT(t)->fragment_path || t->sysv_has_lsb)) | |
23a177ef LP |
479 | continue; |
480 | ||
eeaafddc LP |
481 | special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels); |
482 | special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels); | |
483 | ||
484 | if (special_t && !special_s) | |
485 | d = UNIT_AFTER; | |
486 | else if (special_s && !special_t) | |
487 | d = UNIT_BEFORE; | |
488 | else if (t->sysv_start_priority < s->sysv_start_priority) | |
2c4104f0 LP |
489 | d = UNIT_AFTER; |
490 | else if (t->sysv_start_priority > s->sysv_start_priority) | |
491 | d = UNIT_BEFORE; | |
492 | else | |
493 | continue; | |
494 | ||
495 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
496 | ||
da19d5c1 | 497 | if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) |
2c4104f0 LP |
498 | return r; |
499 | } | |
500 | ||
501 | return 0; | |
502 | } | |
503 | ||
504 | static ExecCommand *exec_command_new(const char *path, const char *arg1) { | |
505 | ExecCommand *c; | |
506 | ||
507 | if (!(c = new0(ExecCommand, 1))) | |
508 | return NULL; | |
509 | ||
510 | if (!(c->path = strdup(path))) { | |
511 | free(c); | |
512 | return NULL; | |
513 | } | |
514 | ||
515 | if (!(c->argv = strv_new(path, arg1, NULL))) { | |
516 | free(c->path); | |
517 | free(c); | |
518 | return NULL; | |
519 | } | |
520 | ||
521 | return c; | |
522 | } | |
523 | ||
37e2941d | 524 | static int sysv_exec_commands(Service *s, const bool supports_reload) { |
2c4104f0 LP |
525 | ExecCommand *c; |
526 | ||
527 | assert(s); | |
1b64d026 LP |
528 | assert(s->is_sysv); |
529 | assert(UNIT(s)->source_path); | |
2c4104f0 | 530 | |
1b64d026 LP |
531 | c = exec_command_new(UNIT(s)->source_path, "start"); |
532 | if (!c) | |
2c4104f0 LP |
533 | return -ENOMEM; |
534 | exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c); | |
535 | ||
1b64d026 LP |
536 | c = exec_command_new(UNIT(s)->source_path, "stop"); |
537 | if (!c) | |
2c4104f0 LP |
538 | return -ENOMEM; |
539 | exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c); | |
540 | ||
37e2941d MS |
541 | if (supports_reload) { |
542 | c = exec_command_new(UNIT(s)->source_path, "reload"); | |
543 | if (!c) | |
544 | return -ENOMEM; | |
545 | exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c); | |
546 | } | |
2c4104f0 LP |
547 | |
548 | return 0; | |
549 | } | |
550 | ||
37e2941d MS |
551 | static bool usage_contains_reload(const char *line) { |
552 | return (strcasestr(line, "{reload|") || | |
553 | strcasestr(line, "{reload}") || | |
554 | strcasestr(line, "{reload\"") || | |
555 | strcasestr(line, "|reload|") || | |
556 | strcasestr(line, "|reload}") || | |
557 | strcasestr(line, "|reload\"")); | |
558 | } | |
559 | ||
e537352b | 560 | static int service_load_sysv_path(Service *s, const char *path) { |
2c4104f0 LP |
561 | FILE *f; |
562 | Unit *u; | |
563 | unsigned line = 0; | |
564 | int r; | |
565 | enum { | |
566 | NORMAL, | |
567 | DESCRIPTION, | |
568 | LSB, | |
37e2941d MS |
569 | LSB_DESCRIPTION, |
570 | USAGE_CONTINUATION | |
2c4104f0 | 571 | } state = NORMAL; |
0b5d26f9 | 572 | char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description; |
5f4b19f4 | 573 | struct stat st; |
37e2941d | 574 | bool supports_reload = false; |
23a177ef LP |
575 | |
576 | assert(s); | |
577 | assert(path); | |
2c4104f0 LP |
578 | |
579 | u = UNIT(s); | |
580 | ||
1b64d026 LP |
581 | f = fopen(path, "re"); |
582 | if (!f) { | |
2c4104f0 LP |
583 | r = errno == ENOENT ? 0 : -errno; |
584 | goto finish; | |
585 | } | |
586 | ||
5f4b19f4 LP |
587 | if (fstat(fileno(f), &st) < 0) { |
588 | r = -errno; | |
589 | goto finish; | |
590 | } | |
591 | ||
1b64d026 LP |
592 | free(u->source_path); |
593 | u->source_path = strdup(path); | |
594 | if (!u->source_path) { | |
2c4104f0 LP |
595 | r = -ENOMEM; |
596 | goto finish; | |
597 | } | |
1b64d026 | 598 | u->source_mtime = timespec_load(&st.st_mtim); |
5f4b19f4 LP |
599 | |
600 | if (null_or_empty(&st)) { | |
ac155bb8 | 601 | u->load_state = UNIT_MASKED; |
5f4b19f4 LP |
602 | r = 0; |
603 | goto finish; | |
604 | } | |
605 | ||
1b64d026 LP |
606 | s->is_sysv = true; |
607 | ||
2c4104f0 LP |
608 | while (!feof(f)) { |
609 | char l[LINE_MAX], *t; | |
610 | ||
611 | if (!fgets(l, sizeof(l), f)) { | |
612 | if (feof(f)) | |
613 | break; | |
614 | ||
615 | r = -errno; | |
66870f90 ZJS |
616 | log_error_unit(u->id, |
617 | "Failed to read configuration file '%s': %s", | |
618 | path, strerror(-r)); | |
2c4104f0 LP |
619 | goto finish; |
620 | } | |
621 | ||
622 | line++; | |
623 | ||
624 | t = strstrip(l); | |
37e2941d MS |
625 | if (*t != '#') { |
626 | /* Try to figure out whether this init script supports | |
627 | * the reload operation. This heuristic looks for | |
628 | * "Usage" lines which include the reload option. */ | |
629 | if ( state == USAGE_CONTINUATION || | |
630 | (state == NORMAL && strcasestr(t, "usage"))) { | |
631 | if (usage_contains_reload(t)) { | |
632 | supports_reload = true; | |
633 | state = NORMAL; | |
634 | } else if (t[strlen(t)-1] == '\\') | |
635 | state = USAGE_CONTINUATION; | |
636 | else | |
637 | state = NORMAL; | |
638 | } | |
639 | ||
2c4104f0 | 640 | continue; |
37e2941d | 641 | } |
2c4104f0 LP |
642 | |
643 | if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { | |
644 | state = LSB; | |
23a177ef | 645 | s->sysv_has_lsb = true; |
2c4104f0 LP |
646 | continue; |
647 | } | |
648 | ||
649 | if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) { | |
650 | state = NORMAL; | |
651 | continue; | |
652 | } | |
653 | ||
654 | t++; | |
655 | t += strspn(t, WHITESPACE); | |
656 | ||
657 | if (state == NORMAL) { | |
658 | ||
659 | /* Try to parse Red Hat style chkconfig headers */ | |
660 | ||
c2b35af6 | 661 | if (startswith_no_case(t, "chkconfig:")) { |
2c4104f0 | 662 | int start_priority; |
8309400a | 663 | char runlevels[16], *k; |
2c4104f0 LP |
664 | |
665 | state = NORMAL; | |
666 | ||
8309400a LP |
667 | if (sscanf(t+10, "%15s %i %*i", |
668 | runlevels, | |
669 | &start_priority) != 2) { | |
2c4104f0 | 670 | |
66870f90 ZJS |
671 | log_warning_unit(u->id, |
672 | "[%s:%u] Failed to parse chkconfig line. Ignoring.", | |
673 | path, line); | |
2c4104f0 LP |
674 | continue; |
675 | } | |
676 | ||
fbe9f3a9 LP |
677 | /* A start priority gathered from the |
678 | * symlink farms is preferred over the | |
679 | * data from the LSB header. */ | |
8309400a | 680 | if (start_priority < 0 || start_priority > 99) |
66870f90 ZJS |
681 | log_warning_unit(u->id, |
682 | "[%s:%u] Start priority out of range. Ignoring.", | |
683 | path, line); | |
ea87ca5a | 684 | else |
8309400a LP |
685 | s->sysv_start_priority = start_priority; |
686 | ||
687 | char_array_0(runlevels); | |
688 | k = delete_chars(runlevels, WHITESPACE "-"); | |
689 | ||
690 | if (k[0]) { | |
691 | char *d; | |
692 | ||
693 | if (!(d = strdup(k))) { | |
694 | r = -ENOMEM; | |
695 | goto finish; | |
696 | } | |
697 | ||
698 | free(s->sysv_runlevels); | |
699 | s->sysv_runlevels = d; | |
2c4104f0 LP |
700 | } |
701 | ||
0b5d26f9 | 702 | } else if (startswith_no_case(t, "description:")) { |
2c4104f0 LP |
703 | |
704 | size_t k = strlen(t); | |
705 | char *d; | |
0b5d26f9 | 706 | const char *j; |
2c4104f0 LP |
707 | |
708 | if (t[k-1] == '\\') { | |
709 | state = DESCRIPTION; | |
710 | t[k-1] = 0; | |
711 | } | |
712 | ||
0b5d26f9 LP |
713 | if ((j = strstrip(t+12)) && *j) { |
714 | if (!(d = strdup(j))) { | |
715 | r = -ENOMEM; | |
716 | goto finish; | |
717 | } | |
718 | } else | |
719 | d = NULL; | |
2c4104f0 | 720 | |
0b5d26f9 LP |
721 | free(chkconfig_description); |
722 | chkconfig_description = d; | |
2c4104f0 | 723 | |
c2b35af6 | 724 | } else if (startswith_no_case(t, "pidfile:")) { |
2c4104f0 LP |
725 | |
726 | char *fn; | |
727 | ||
728 | state = NORMAL; | |
729 | ||
730 | fn = strstrip(t+8); | |
731 | if (!path_is_absolute(fn)) { | |
66870f90 ZJS |
732 | log_warning_unit(u->id, |
733 | "[%s:%u] PID file not absolute. Ignoring.", | |
734 | path, line); | |
2c4104f0 LP |
735 | continue; |
736 | } | |
737 | ||
738 | if (!(fn = strdup(fn))) { | |
739 | r = -ENOMEM; | |
740 | goto finish; | |
741 | } | |
742 | ||
743 | free(s->pid_file); | |
744 | s->pid_file = fn; | |
745 | } | |
746 | ||
747 | } else if (state == DESCRIPTION) { | |
748 | ||
749 | /* Try to parse Red Hat style description | |
750 | * continuation */ | |
751 | ||
752 | size_t k = strlen(t); | |
0b5d26f9 | 753 | char *j; |
2c4104f0 LP |
754 | |
755 | if (t[k-1] == '\\') | |
756 | t[k-1] = 0; | |
757 | else | |
758 | state = NORMAL; | |
759 | ||
0b5d26f9 LP |
760 | if ((j = strstrip(t)) && *j) { |
761 | char *d = NULL; | |
762 | ||
763 | if (chkconfig_description) | |
b7def684 | 764 | d = strjoin(chkconfig_description, " ", j, NULL); |
0b5d26f9 LP |
765 | else |
766 | d = strdup(j); | |
2c4104f0 | 767 | |
0b5d26f9 LP |
768 | if (!d) { |
769 | r = -ENOMEM; | |
770 | goto finish; | |
771 | } | |
772 | ||
773 | free(chkconfig_description); | |
774 | chkconfig_description = d; | |
775 | } | |
2c4104f0 LP |
776 | |
777 | } else if (state == LSB || state == LSB_DESCRIPTION) { | |
778 | ||
c2b35af6 | 779 | if (startswith_no_case(t, "Provides:")) { |
2c4104f0 LP |
780 | char *i, *w; |
781 | size_t z; | |
782 | ||
783 | state = LSB; | |
784 | ||
f60f22df | 785 | FOREACH_WORD_QUOTED(w, z, t+9, i) { |
2c4104f0 LP |
786 | char *n, *m; |
787 | ||
788 | if (!(n = strndup(w, z))) { | |
789 | r = -ENOMEM; | |
790 | goto finish; | |
791 | } | |
792 | ||
2b6bf07d | 793 | r = sysv_translate_facility(n, basename(path), &m); |
2c4104f0 LP |
794 | free(n); |
795 | ||
796 | if (r < 0) | |
797 | goto finish; | |
798 | ||
799 | if (r == 0) | |
800 | continue; | |
801 | ||
bd77d0fc | 802 | if (unit_name_to_type(m) == UNIT_SERVICE) |
ce2c2265 | 803 | r = unit_merge_by_name(u, m); |
9700edb4 LP |
804 | else |
805 | /* NB: SysV targets | |
806 | * which are provided | |
807 | * by a service are | |
808 | * pulled in by the | |
809 | * services, as an | |
810 | * indication that the | |
811 | * generic service is | |
812 | * now available. This | |
813 | * is strictly | |
814 | * one-way. The | |
815 | * targets do NOT pull | |
816 | * in the SysV | |
817 | * services! */ | |
818 | r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true); | |
bd77d0fc | 819 | |
2c4104f0 | 820 | if (r < 0) |
66870f90 ZJS |
821 | log_error_unit(u->id, |
822 | "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", | |
823 | path, line, m, strerror(-r)); | |
42a097a2 LP |
824 | |
825 | free(m); | |
2c4104f0 LP |
826 | } |
827 | ||
c2b35af6 LP |
828 | } else if (startswith_no_case(t, "Required-Start:") || |
829 | startswith_no_case(t, "Should-Start:") || | |
830 | startswith_no_case(t, "X-Start-Before:") || | |
831 | startswith_no_case(t, "X-Start-After:")) { | |
2c4104f0 LP |
832 | char *i, *w; |
833 | size_t z; | |
834 | ||
835 | state = LSB; | |
836 | ||
f60f22df | 837 | FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) { |
2c4104f0 LP |
838 | char *n, *m; |
839 | ||
840 | if (!(n = strndup(w, z))) { | |
841 | r = -ENOMEM; | |
842 | goto finish; | |
843 | } | |
844 | ||
2b6bf07d | 845 | r = sysv_translate_facility(n, basename(path), &m); |
e83c7c0b | 846 | if (r < 0) { |
66870f90 ZJS |
847 | log_error_unit(u->id, |
848 | "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", | |
849 | path, line, n, strerror(-r)); | |
e83c7c0b LP |
850 | free(n); |
851 | continue; | |
852 | } | |
853 | ||
854 | free(n); | |
2c4104f0 LP |
855 | |
856 | if (r == 0) | |
857 | continue; | |
858 | ||
c2b35af6 | 859 | r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true); |
2c4104f0 LP |
860 | |
861 | if (r < 0) | |
66870f90 ZJS |
862 | log_error_unit(u->id, "[%s:%u] Failed to add dependency on %s, ignoring: %s", |
863 | path, line, m, strerror(-r)); | |
42a097a2 LP |
864 | |
865 | free(m); | |
2c4104f0 | 866 | } |
c2b35af6 | 867 | } else if (startswith_no_case(t, "Default-Start:")) { |
8309400a LP |
868 | char *k, *d; |
869 | ||
870 | state = LSB; | |
871 | ||
872 | k = delete_chars(t+14, WHITESPACE "-"); | |
873 | ||
874 | if (k[0] != 0) { | |
875 | if (!(d = strdup(k))) { | |
876 | r = -ENOMEM; | |
877 | goto finish; | |
878 | } | |
879 | ||
880 | free(s->sysv_runlevels); | |
881 | s->sysv_runlevels = d; | |
882 | } | |
2c4104f0 | 883 | |
0b5d26f9 LP |
884 | } else if (startswith_no_case(t, "Description:")) { |
885 | char *d, *j; | |
ed4c1cc6 | 886 | |
2c4104f0 LP |
887 | state = LSB_DESCRIPTION; |
888 | ||
0b5d26f9 LP |
889 | if ((j = strstrip(t+12)) && *j) { |
890 | if (!(d = strdup(j))) { | |
891 | r = -ENOMEM; | |
892 | goto finish; | |
893 | } | |
894 | } else | |
895 | d = NULL; | |
2c4104f0 | 896 | |
0b5d26f9 LP |
897 | free(long_description); |
898 | long_description = d; | |
2c4104f0 | 899 | |
ed4c1cc6 | 900 | } else if (startswith_no_case(t, "Short-Description:")) { |
0b5d26f9 | 901 | char *d, *j; |
2c4104f0 | 902 | |
2c4104f0 LP |
903 | state = LSB; |
904 | ||
0b5d26f9 LP |
905 | if ((j = strstrip(t+18)) && *j) { |
906 | if (!(d = strdup(j))) { | |
907 | r = -ENOMEM; | |
908 | goto finish; | |
909 | } | |
910 | } else | |
911 | d = NULL; | |
2c4104f0 | 912 | |
0b5d26f9 LP |
913 | free(short_description); |
914 | short_description = d; | |
2c4104f0 LP |
915 | |
916 | } else if (state == LSB_DESCRIPTION) { | |
917 | ||
918 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
0b5d26f9 | 919 | char *j; |
2c4104f0 | 920 | |
0b5d26f9 LP |
921 | if ((j = strstrip(t)) && *j) { |
922 | char *d = NULL; | |
923 | ||
924 | if (long_description) | |
b7def684 | 925 | d = strjoin(long_description, " ", t, NULL); |
0b5d26f9 LP |
926 | else |
927 | d = strdup(j); | |
928 | ||
929 | if (!d) { | |
930 | r = -ENOMEM; | |
931 | goto finish; | |
932 | } | |
933 | ||
934 | free(long_description); | |
935 | long_description = d; | |
2c4104f0 LP |
936 | } |
937 | ||
2c4104f0 LP |
938 | } else |
939 | state = LSB; | |
940 | } | |
941 | } | |
942 | } | |
943 | ||
37e2941d | 944 | if ((r = sysv_exec_commands(s, supports_reload)) < 0) |
2c4104f0 LP |
945 | goto finish; |
946 | ||
a40eb732 | 947 | if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) { |
0bc824be LP |
948 | /* If there a runlevels configured for this service |
949 | * but none of the standard ones, then we assume this | |
950 | * is some special kind of service (which might be | |
951 | * needed for early boot) and don't create any links | |
952 | * to it. */ | |
953 | ||
1124fe6f | 954 | UNIT(s)->default_dependencies = false; |
09cd1ab1 | 955 | |
09cd1ab1 | 956 | /* Don't timeout special services during boot (like fsck) */ |
d568a335 MS |
957 | s->timeout_start_usec = 0; |
958 | s->timeout_stop_usec = 0; | |
959 | } else { | |
960 | s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC; | |
961 | s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC; | |
962 | } | |
963 | ||
80876c20 | 964 | /* Special setting for all SysV services */ |
1f48cf56 | 965 | s->type = SERVICE_FORKING; |
f8788303 | 966 | s->remain_after_exit = !s->pid_file; |
1835f23c | 967 | s->guess_main_pid = false; |
525ee6f4 | 968 | s->restart = SERVICE_RESTART_NO; |
353e12c2 | 969 | s->exec_context.ignore_sigpipe = false; |
4819ff03 | 970 | s->kill_context.kill_mode = KILL_PROCESS; |
80876c20 | 971 | |
0b5d26f9 LP |
972 | /* We use the long description only if |
973 | * no short description is set. */ | |
974 | ||
975 | if (short_description) | |
976 | description = short_description; | |
977 | else if (chkconfig_description) | |
978 | description = chkconfig_description; | |
979 | else if (long_description) | |
980 | description = long_description; | |
981 | else | |
982 | description = NULL; | |
983 | ||
984 | if (description) { | |
985 | char *d; | |
986 | ||
e527618d | 987 | if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) { |
0b5d26f9 LP |
988 | r = -ENOMEM; |
989 | goto finish; | |
990 | } | |
991 | ||
ac155bb8 | 992 | u->description = d; |
0b5d26f9 LP |
993 | } |
994 | ||
ea87ca5a LP |
995 | /* The priority that has been set in /etc/rcN.d/ hierarchies |
996 | * takes precedence over what is stored as default in the LSB | |
997 | * header */ | |
998 | if (s->sysv_start_priority_from_rcnd >= 0) | |
999 | s->sysv_start_priority = s->sysv_start_priority_from_rcnd; | |
1000 | ||
ac155bb8 | 1001 | u->load_state = UNIT_LOADED; |
23a177ef | 1002 | r = 0; |
2c4104f0 LP |
1003 | |
1004 | finish: | |
1005 | ||
1006 | if (f) | |
1007 | fclose(f); | |
1008 | ||
0b5d26f9 LP |
1009 | free(short_description); |
1010 | free(long_description); | |
1011 | free(chkconfig_description); | |
1012 | ||
2c4104f0 LP |
1013 | return r; |
1014 | } | |
1015 | ||
e537352b | 1016 | static int service_load_sysv_name(Service *s, const char *name) { |
2c4104f0 LP |
1017 | char **p; |
1018 | ||
1019 | assert(s); | |
1020 | assert(name); | |
1021 | ||
c2756a68 | 1022 | /* For SysV services we strip the *.sh suffixes. */ |
3f95f83c | 1023 | if (endswith(name, ".sh.service")) |
d017c6ca LP |
1024 | return -ENOENT; |
1025 | ||
1124fe6f | 1026 | STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) { |
2c4104f0 LP |
1027 | char *path; |
1028 | int r; | |
1029 | ||
b7def684 | 1030 | path = strjoin(*p, "/", name, NULL); |
44d91056 | 1031 | if (!path) |
2c4104f0 LP |
1032 | return -ENOMEM; |
1033 | ||
1034 | assert(endswith(path, ".service")); | |
1035 | path[strlen(path)-8] = 0; | |
1036 | ||
e537352b | 1037 | r = service_load_sysv_path(s, path); |
fbe9f3a9 | 1038 | |
1124fe6f | 1039 | if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) { |
20771ae3 | 1040 | /* Try *.sh source'able init scripts */ |
fbe9f3a9 LP |
1041 | strcat(path, ".sh"); |
1042 | r = service_load_sysv_path(s, path); | |
1043 | } | |
2c4104f0 LP |
1044 | free(path); |
1045 | ||
23a177ef | 1046 | if (r < 0) |
2c4104f0 | 1047 | return r; |
23a177ef | 1048 | |
88516c0c | 1049 | if (UNIT(s)->load_state != UNIT_STUB) |
23a177ef | 1050 | break; |
2c4104f0 LP |
1051 | } |
1052 | ||
1053 | return 0; | |
1054 | } | |
1055 | ||
e537352b | 1056 | static int service_load_sysv(Service *s) { |
2c4104f0 LP |
1057 | const char *t; |
1058 | Iterator i; | |
1059 | int r; | |
1060 | ||
5cb5a6ff LP |
1061 | assert(s); |
1062 | ||
1063 | /* Load service data from SysV init scripts, preferably with | |
1064 | * LSB headers ... */ | |
1065 | ||
1124fe6f | 1066 | if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path)) |
2c4104f0 LP |
1067 | return 0; |
1068 | ||
1124fe6f | 1069 | if ((t = UNIT(s)->id)) |
e537352b | 1070 | if ((r = service_load_sysv_name(s, t)) < 0) |
2c4104f0 LP |
1071 | return r; |
1072 | ||
1124fe6f MS |
1073 | if (UNIT(s)->load_state == UNIT_STUB) |
1074 | SET_FOREACH(t, UNIT(s)->names, i) { | |
1075 | if (t == UNIT(s)->id) | |
e537352b LP |
1076 | continue; |
1077 | ||
e364ad06 | 1078 | if ((r = service_load_sysv_name(s, t)) < 0) |
23a177ef LP |
1079 | return r; |
1080 | ||
1124fe6f | 1081 | if (UNIT(s)->load_state != UNIT_STUB) |
23a177ef LP |
1082 | break; |
1083 | } | |
2c4104f0 LP |
1084 | |
1085 | return 0; | |
5cb5a6ff | 1086 | } |
07459bb6 | 1087 | #endif |
5cb5a6ff | 1088 | |
243b1432 LP |
1089 | static int service_verify(Service *s) { |
1090 | assert(s); | |
1091 | ||
1124fe6f | 1092 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
1093 | return 0; |
1094 | ||
1095 | if (!s->exec_command[SERVICE_EXEC_START]) { | |
66870f90 ZJS |
1096 | log_error_unit(UNIT(s)->id, |
1097 | "%s lacks ExecStart setting. Refusing.", UNIT(s)->id); | |
243b1432 LP |
1098 | return -EINVAL; |
1099 | } | |
1100 | ||
34e9ba66 LP |
1101 | if (s->type != SERVICE_ONESHOT && |
1102 | s->exec_command[SERVICE_EXEC_START]->command_next) { | |
66870f90 ZJS |
1103 | log_error_unit(UNIT(s)->id, |
1104 | "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id); | |
6cf6bbc2 LP |
1105 | return -EINVAL; |
1106 | } | |
1107 | ||
b0693d30 MW |
1108 | if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { |
1109 | log_error_unit(UNIT(s)->id, | |
1110 | "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id); | |
1111 | return -EINVAL; | |
1112 | } | |
1113 | ||
05e343b7 | 1114 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
66870f90 ZJS |
1115 | log_error_unit(UNIT(s)->id, |
1116 | "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id); | |
4d0e5dbd LP |
1117 | return -EINVAL; |
1118 | } | |
1119 | ||
7e2668c6 | 1120 | if (s->bus_name && s->type != SERVICE_DBUS) |
66870f90 ZJS |
1121 | log_warning_unit(UNIT(s)->id, |
1122 | "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id); | |
7e2668c6 | 1123 | |
4819ff03 | 1124 | if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) { |
66870f90 ZJS |
1125 | log_error_unit(UNIT(s)->id, |
1126 | "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id); | |
05e343b7 LP |
1127 | return -EINVAL; |
1128 | } | |
1129 | ||
243b1432 LP |
1130 | return 0; |
1131 | } | |
1132 | ||
a40eb732 LP |
1133 | static int service_add_default_dependencies(Service *s) { |
1134 | int r; | |
1135 | ||
1136 | assert(s); | |
1137 | ||
1138 | /* Add a number of automatic dependencies useful for the | |
1139 | * majority of services. */ | |
1140 | ||
1141 | /* First, pull in base system */ | |
67445f4e | 1142 | if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) { |
117dcc57 ZJS |
1143 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, |
1144 | SPECIAL_BASIC_TARGET, NULL, true); | |
1145 | if (r < 0) | |
a40eb732 LP |
1146 | return r; |
1147 | ||
67445f4e | 1148 | } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) { |
117dcc57 ZJS |
1149 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, |
1150 | SPECIAL_SOCKETS_TARGET, NULL, true); | |
1151 | if (r < 0) | |
a40eb732 | 1152 | return r; |
e3d84721 LP |
1153 | |
1154 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, | |
1155 | SPECIAL_TIMERS_TARGET, NULL, true); | |
1156 | if (r < 0) | |
1157 | return r; | |
1158 | ||
1159 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, | |
1160 | SPECIAL_PATHS_TARGET, NULL, true); | |
1161 | if (r < 0) | |
1162 | return r; | |
a40eb732 LP |
1163 | } |
1164 | ||
1165 | /* Second, activate normal shutdown */ | |
117dcc57 ZJS |
1166 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, |
1167 | SPECIAL_SHUTDOWN_TARGET, NULL, true); | |
1168 | return r; | |
a40eb732 LP |
1169 | } |
1170 | ||
4dfc092a LP |
1171 | static void service_fix_output(Service *s) { |
1172 | assert(s); | |
1173 | ||
1174 | /* If nothing has been explicitly configured, patch default | |
1175 | * output in. If input is socket/tty we avoid this however, | |
1176 | * since in that case we want output to default to the same | |
1177 | * place as we read input from. */ | |
1178 | ||
1179 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
1180 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
1181 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 1182 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
1183 | |
1184 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
1185 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 1186 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
1187 | } |
1188 | ||
e537352b LP |
1189 | static int service_load(Unit *u) { |
1190 | int r; | |
1191 | Service *s = SERVICE(u); | |
1192 | ||
1193 | assert(s); | |
1e2e8133 | 1194 | |
5cb5a6ff | 1195 | /* Load a .service file */ |
c2756a68 LP |
1196 | r = unit_load_fragment(u); |
1197 | if (r < 0) | |
5cb5a6ff LP |
1198 | return r; |
1199 | ||
07459bb6 | 1200 | #ifdef HAVE_SYSV_COMPAT |
bd77d0fc | 1201 | /* Load a classic init script as a fallback, if we couldn't find anything */ |
c2756a68 LP |
1202 | if (u->load_state == UNIT_STUB) { |
1203 | r = service_load_sysv(s); | |
1204 | if (r < 0) | |
23a177ef | 1205 | return r; |
c2756a68 | 1206 | } |
07459bb6 | 1207 | #endif |
d46de8a1 | 1208 | |
23a177ef | 1209 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 1210 | if (u->load_state == UNIT_STUB) |
23a177ef | 1211 | return -ENOENT; |
034c6ed7 | 1212 | |
23a177ef | 1213 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 1214 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
1215 | |
1216 | /* We were able to load something, then let's add in | |
1217 | * the dropin directories. */ | |
1218 | r = unit_load_dropin(u); | |
1219 | if (r < 0) | |
1220 | return r; | |
1221 | ||
0b86feac LP |
1222 | if (s->type == _SERVICE_TYPE_INVALID) |
1223 | s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE; | |
1224 | ||
d568a335 MS |
1225 | /* Oneshot services have disabled start timeout by default */ |
1226 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
1227 | s->timeout_start_usec = 0; | |
98709151 | 1228 | |
4e2b0f9b LP |
1229 | service_fix_output(s); |
1230 | ||
117dcc57 ZJS |
1231 | r = unit_add_exec_dependencies(u, &s->exec_context); |
1232 | if (r < 0) | |
23a177ef LP |
1233 | return r; |
1234 | ||
a016b922 LP |
1235 | r = unit_add_default_slice(u); |
1236 | if (r < 0) | |
1237 | return r; | |
1238 | ||
07459bb6 | 1239 | #ifdef HAVE_SYSV_COMPAT |
117dcc57 ZJS |
1240 | r = sysv_fix_order(s); |
1241 | if (r < 0) | |
23a177ef | 1242 | return r; |
07459bb6 | 1243 | #endif |
05e343b7 | 1244 | |
718db961 LP |
1245 | if (s->bus_name) { |
1246 | r = unit_watch_bus_name(u, s->bus_name); | |
1247 | if (r < 0) | |
a40eb732 | 1248 | return r; |
718db961 | 1249 | } |
c952c6ec LP |
1250 | |
1251 | if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) | |
1252 | s->notify_access = NOTIFY_MAIN; | |
a40eb732 | 1253 | |
02c4ef9c LP |
1254 | if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) |
1255 | s->notify_access = NOTIFY_MAIN; | |
1256 | ||
117dcc57 ZJS |
1257 | if (s->type == SERVICE_DBUS || s->bus_name) { |
1258 | r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, | |
1259 | SPECIAL_DBUS_SOCKET, NULL, true); | |
1260 | if (r < 0) | |
a40eb732 | 1261 | return r; |
117dcc57 | 1262 | } |
a40eb732 | 1263 | |
117dcc57 ZJS |
1264 | if (UNIT(s)->default_dependencies) { |
1265 | r = service_add_default_dependencies(s); | |
1266 | if (r < 0) | |
a40eb732 | 1267 | return r; |
117dcc57 | 1268 | } |
e06c73cc | 1269 | |
cba6e062 | 1270 | r = unit_exec_context_defaults(u, &s->exec_context); |
e06c73cc LP |
1271 | if (r < 0) |
1272 | return r; | |
8e274523 LP |
1273 | } |
1274 | ||
243b1432 | 1275 | return service_verify(s); |
034c6ed7 LP |
1276 | } |
1277 | ||
87f0e418 | 1278 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 1279 | |
5cb5a6ff | 1280 | ServiceExecCommand c; |
87f0e418 | 1281 | Service *s = SERVICE(u); |
47be870b | 1282 | const char *prefix2; |
7fd1b19b | 1283 | _cleanup_free_ char *p2 = NULL; |
5cb5a6ff LP |
1284 | |
1285 | assert(s); | |
1286 | ||
47be870b LP |
1287 | p2 = strappend(prefix, "\t"); |
1288 | prefix2 = p2 ? p2 : prefix; | |
44d8db9e | 1289 | |
5cb5a6ff | 1290 | fprintf(f, |
81a2b7ce | 1291 | "%sService State: %s\n" |
f42806df LP |
1292 | "%sResult: %s\n" |
1293 | "%sReload Result: %s\n" | |
81a2b7ce | 1294 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 1295 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 1296 | "%sRemainAfterExit: %s\n" |
3185a36b | 1297 | "%sGuessMainPID: %s\n" |
c952c6ec | 1298 | "%sType: %s\n" |
2cf3143a | 1299 | "%sRestart: %s\n" |
c952c6ec | 1300 | "%sNotifyAccess: %s\n", |
81a2b7ce | 1301 | prefix, service_state_to_string(s->state), |
f42806df LP |
1302 | prefix, service_result_to_string(s->result), |
1303 | prefix, service_result_to_string(s->reload_result), | |
81a2b7ce | 1304 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 1305 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 1306 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 1307 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 1308 | prefix, service_type_to_string(s->type), |
2cf3143a | 1309 | prefix, service_restart_to_string(s->restart), |
c952c6ec | 1310 | prefix, notify_access_to_string(s->notify_access)); |
5cb5a6ff | 1311 | |
70123e68 LP |
1312 | if (s->control_pid > 0) |
1313 | fprintf(f, | |
bb00e604 LP |
1314 | "%sControl PID: %lu\n", |
1315 | prefix, (unsigned long) s->control_pid); | |
70123e68 LP |
1316 | |
1317 | if (s->main_pid > 0) | |
1318 | fprintf(f, | |
6dfa5494 LP |
1319 | "%sMain PID: %lu\n" |
1320 | "%sMain PID Known: %s\n" | |
1321 | "%sMain PID Alien: %s\n", | |
1322 | prefix, (unsigned long) s->main_pid, | |
1323 | prefix, yes_no(s->main_pid_known), | |
1324 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 1325 | |
034c6ed7 LP |
1326 | if (s->pid_file) |
1327 | fprintf(f, | |
1328 | "%sPIDFile: %s\n", | |
1329 | prefix, s->pid_file); | |
1330 | ||
05e343b7 LP |
1331 | if (s->bus_name) |
1332 | fprintf(f, | |
1333 | "%sBusName: %s\n" | |
1334 | "%sBus Name Good: %s\n", | |
1335 | prefix, s->bus_name, | |
1336 | prefix, yes_no(s->bus_name_good)); | |
1337 | ||
4819ff03 | 1338 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
1339 | exec_context_dump(&s->exec_context, f, prefix); |
1340 | ||
e537352b | 1341 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 1342 | |
44d8db9e LP |
1343 | if (!s->exec_command[c]) |
1344 | continue; | |
1345 | ||
40d50879 | 1346 | fprintf(f, "%s-> %s:\n", |
94f04347 | 1347 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
1348 | |
1349 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 1350 | } |
44d8db9e | 1351 | |
07459bb6 | 1352 | #ifdef HAVE_SYSV_COMPAT |
1b64d026 | 1353 | if (s->is_sysv) |
2c4104f0 | 1354 | fprintf(f, |
9fff8a1f LP |
1355 | "%sSysV Init Script has LSB Header: %s\n" |
1356 | "%sSysVEnabled: %s\n", | |
9fff8a1f LP |
1357 | prefix, yes_no(s->sysv_has_lsb), |
1358 | prefix, yes_no(s->sysv_enabled)); | |
2c4104f0 LP |
1359 | |
1360 | if (s->sysv_start_priority >= 0) | |
1361 | fprintf(f, | |
9fff8a1f LP |
1362 | "%sSysVStartPriority: %i\n", |
1363 | prefix, s->sysv_start_priority); | |
2c4104f0 | 1364 | |
8309400a LP |
1365 | if (s->sysv_runlevels) |
1366 | fprintf(f, "%sSysVRunLevels: %s\n", | |
1367 | prefix, s->sysv_runlevels); | |
07459bb6 | 1368 | #endif |
23a177ef | 1369 | |
8c47c732 LP |
1370 | if (s->status_text) |
1371 | fprintf(f, "%sStatus Text: %s\n", | |
1372 | prefix, s->status_text); | |
5cb5a6ff LP |
1373 | } |
1374 | ||
c5419d42 | 1375 | static int service_load_pid_file(Service *s, bool may_warn) { |
7fd1b19b | 1376 | _cleanup_free_ char *k = NULL; |
034c6ed7 | 1377 | int r; |
5925dd3c | 1378 | pid_t pid; |
034c6ed7 LP |
1379 | |
1380 | assert(s); | |
1381 | ||
034c6ed7 | 1382 | if (!s->pid_file) |
13230d5d | 1383 | return -ENOENT; |
034c6ed7 | 1384 | |
117dcc57 ZJS |
1385 | r = read_one_line_file(s->pid_file, &k); |
1386 | if (r < 0) { | |
c5419d42 | 1387 | if (may_warn) |
66870f90 ZJS |
1388 | log_info_unit(UNIT(s)->id, |
1389 | "PID file %s not readable (yet?) after %s.", | |
1390 | s->pid_file, service_state_to_string(s->state)); | |
034c6ed7 | 1391 | return r; |
5375410b | 1392 | } |
034c6ed7 | 1393 | |
5925dd3c | 1394 | r = parse_pid(k, &pid); |
bc41f93e ZJS |
1395 | if (r < 0) { |
1396 | if (may_warn) | |
1397 | log_info_unit(UNIT(s)->id, | |
1398 | "Failed to read PID from file %s: %s", | |
1399 | s->pid_file, strerror(-r)); | |
5925dd3c | 1400 | return r; |
bc41f93e | 1401 | } |
406eaf93 | 1402 | |
5925dd3c | 1403 | if (kill(pid, 0) < 0 && errno != EPERM) { |
c5419d42 | 1404 | if (may_warn) |
66870f90 ZJS |
1405 | log_info_unit(UNIT(s)->id, |
1406 | "PID %lu read from file %s does not exist.", | |
1407 | (unsigned long) pid, s->pid_file); | |
b8c597d5 LP |
1408 | return -ESRCH; |
1409 | } | |
1410 | ||
db01f8b3 MS |
1411 | if (s->main_pid_known) { |
1412 | if (pid == s->main_pid) | |
1413 | return 0; | |
1414 | ||
66870f90 ZJS |
1415 | log_debug_unit(UNIT(s)->id, |
1416 | "Main PID changing: %lu -> %lu", | |
1417 | (unsigned long) s->main_pid, (unsigned long) pid); | |
db01f8b3 MS |
1418 | service_unwatch_main_pid(s); |
1419 | s->main_pid_known = false; | |
3a111838 | 1420 | } else |
66870f90 ZJS |
1421 | log_debug_unit(UNIT(s)->id, |
1422 | "Main PID loaded: %lu", (unsigned long) pid); | |
db01f8b3 | 1423 | |
117dcc57 ZJS |
1424 | r = service_set_main_pid(s, pid); |
1425 | if (r < 0) | |
16f6025e LP |
1426 | return r; |
1427 | ||
117dcc57 | 1428 | r = unit_watch_pid(UNIT(s), pid); |
bc41f93e | 1429 | if (r < 0) { |
5925dd3c | 1430 | /* FIXME: we need to do something here */ |
bc41f93e ZJS |
1431 | log_warning_unit(UNIT(s)->id, |
1432 | "Failed to watch PID %lu from service %s", | |
1433 | (unsigned long) pid, UNIT(s)->id); | |
5925dd3c | 1434 | return r; |
bc41f93e | 1435 | } |
034c6ed7 LP |
1436 | |
1437 | return 0; | |
1438 | } | |
1439 | ||
4fbf50b3 LP |
1440 | static int service_search_main_pid(Service *s) { |
1441 | pid_t pid; | |
1442 | int r; | |
1443 | ||
1444 | assert(s); | |
1445 | ||
3185a36b LP |
1446 | /* If we know it anyway, don't ever fallback to unreliable |
1447 | * heuristics */ | |
4fbf50b3 LP |
1448 | if (s->main_pid_known) |
1449 | return 0; | |
1450 | ||
3185a36b LP |
1451 | if (!s->guess_main_pid) |
1452 | return 0; | |
1453 | ||
4fbf50b3 LP |
1454 | assert(s->main_pid <= 0); |
1455 | ||
4ad49000 | 1456 | pid = unit_search_main_pid(UNIT(s)); |
117dcc57 | 1457 | if (pid <= 0) |
4fbf50b3 LP |
1458 | return -ENOENT; |
1459 | ||
66870f90 ZJS |
1460 | log_debug_unit(UNIT(s)->id, |
1461 | "Main PID guessed: %lu", (unsigned long) pid); | |
117dcc57 ZJS |
1462 | r = service_set_main_pid(s, pid); |
1463 | if (r < 0) | |
4fbf50b3 LP |
1464 | return r; |
1465 | ||
117dcc57 ZJS |
1466 | r = unit_watch_pid(UNIT(s), pid); |
1467 | if (r < 0) | |
4fbf50b3 | 1468 | /* FIXME: we need to do something here */ |
a827e373 ZJS |
1469 | log_warning_unit(UNIT(s)->id, |
1470 | "Failed to watch PID %lu from service %s", | |
1471 | (unsigned long) pid, UNIT(s)->id); | |
4fbf50b3 LP |
1472 | return r; |
1473 | ||
1474 | return 0; | |
1475 | } | |
1476 | ||
034c6ed7 LP |
1477 | static void service_set_state(Service *s, ServiceState state) { |
1478 | ServiceState old_state; | |
e056b01d | 1479 | const UnitActiveState *table; |
5cb5a6ff LP |
1480 | assert(s); |
1481 | ||
e056b01d LP |
1482 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
1483 | ||
034c6ed7 | 1484 | old_state = s->state; |
5cb5a6ff | 1485 | s->state = state; |
034c6ed7 | 1486 | |
3a111838 MS |
1487 | service_unwatch_pid_file(s); |
1488 | ||
034c6ed7 LP |
1489 | if (state != SERVICE_START_PRE && |
1490 | state != SERVICE_START && | |
1491 | state != SERVICE_START_POST && | |
1492 | state != SERVICE_RELOAD && | |
1493 | state != SERVICE_STOP && | |
1494 | state != SERVICE_STOP_SIGTERM && | |
1495 | state != SERVICE_STOP_SIGKILL && | |
1496 | state != SERVICE_STOP_POST && | |
1497 | state != SERVICE_FINAL_SIGTERM && | |
1498 | state != SERVICE_FINAL_SIGKILL && | |
1499 | state != SERVICE_AUTO_RESTART) | |
718db961 | 1500 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 1501 | |
7d55e835 LP |
1502 | if (state != SERVICE_START && |
1503 | state != SERVICE_START_POST && | |
034c6ed7 LP |
1504 | state != SERVICE_RUNNING && |
1505 | state != SERVICE_RELOAD && | |
1506 | state != SERVICE_STOP && | |
1507 | state != SERVICE_STOP_SIGTERM && | |
867b3b7d | 1508 | state != SERVICE_STOP_SIGKILL) { |
5e94833f | 1509 | service_unwatch_main_pid(s); |
867b3b7d LP |
1510 | s->main_command = NULL; |
1511 | } | |
034c6ed7 LP |
1512 | |
1513 | if (state != SERVICE_START_PRE && | |
1514 | state != SERVICE_START && | |
1515 | state != SERVICE_START_POST && | |
1516 | state != SERVICE_RELOAD && | |
1517 | state != SERVICE_STOP && | |
1518 | state != SERVICE_STOP_SIGTERM && | |
1519 | state != SERVICE_STOP_SIGKILL && | |
1520 | state != SERVICE_STOP_POST && | |
1521 | state != SERVICE_FINAL_SIGTERM && | |
e537352b | 1522 | state != SERVICE_FINAL_SIGKILL) { |
5e94833f | 1523 | service_unwatch_control_pid(s); |
034c6ed7 | 1524 | s->control_command = NULL; |
a16e1123 | 1525 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 1526 | } |
034c6ed7 | 1527 | |
4f2d528d LP |
1528 | if (state != SERVICE_START_PRE && |
1529 | state != SERVICE_START && | |
6cf6bbc2 LP |
1530 | state != SERVICE_START_POST && |
1531 | state != SERVICE_RUNNING && | |
1532 | state != SERVICE_RELOAD && | |
1533 | state != SERVICE_STOP && | |
1534 | state != SERVICE_STOP_SIGTERM && | |
1535 | state != SERVICE_STOP_SIGKILL && | |
1536 | state != SERVICE_STOP_POST && | |
1537 | state != SERVICE_FINAL_SIGTERM && | |
1538 | state != SERVICE_FINAL_SIGKILL && | |
1124fe6f | 1539 | !(state == SERVICE_DEAD && UNIT(s)->job)) { |
4f2d528d | 1540 | service_close_socket_fd(s); |
6cf6bbc2 LP |
1541 | service_connection_unref(s); |
1542 | } | |
4f2d528d | 1543 | |
6d594baa | 1544 | if (state == SERVICE_STOP || state == SERVICE_STOP_SIGTERM) |
a6927d7f MO |
1545 | service_stop_watchdog(s); |
1546 | ||
f6023656 LP |
1547 | /* For the inactive states unit_notify() will trim the cgroup, |
1548 | * but for exit we have to do that ourselves... */ | |
1124fe6f | 1549 | if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0) |
4ad49000 | 1550 | unit_destroy_cgroup(UNIT(s)); |
f6023656 | 1551 | |
9cd86184 OB |
1552 | /* For remain_after_exit services, let's see if we can "release" the |
1553 | * hold on the console, since unit_notify() only does that in case of | |
1554 | * change of state */ | |
1555 | if (state == SERVICE_EXITED && s->remain_after_exit && | |
1556 | UNIT(s)->manager->n_on_console > 0) { | |
1557 | ExecContext *ec = unit_get_exec_context(UNIT(s)); | |
1558 | if (ec && exec_context_may_touch_console(ec)) { | |
1559 | Manager *m = UNIT(s)->manager; | |
1560 | ||
1561 | m->n_on_console --; | |
1562 | if (m->n_on_console == 0) | |
1563 | /* unset no_console_output flag, since the console is free */ | |
1564 | m->no_console_output = false; | |
1565 | } | |
1566 | } | |
1567 | ||
e537352b | 1568 | if (old_state != state) |
66870f90 ZJS |
1569 | log_debug_unit(UNIT(s)->id, |
1570 | "%s changed %s -> %s", UNIT(s)->id, | |
1571 | service_state_to_string(old_state), | |
1572 | service_state_to_string(state)); | |
acbb0225 | 1573 | |
e056b01d | 1574 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
f42806df | 1575 | s->reload_result = SERVICE_SUCCESS; |
034c6ed7 LP |
1576 | } |
1577 | ||
a16e1123 LP |
1578 | static int service_coldplug(Unit *u) { |
1579 | Service *s = SERVICE(u); | |
1580 | int r; | |
1581 | ||
1582 | assert(s); | |
1583 | assert(s->state == SERVICE_DEAD); | |
1584 | ||
1585 | if (s->deserialized_state != s->state) { | |
1586 | ||
1587 | if (s->deserialized_state == SERVICE_START_PRE || | |
1588 | s->deserialized_state == SERVICE_START || | |
1589 | s->deserialized_state == SERVICE_START_POST || | |
1590 | s->deserialized_state == SERVICE_RELOAD || | |
1591 | s->deserialized_state == SERVICE_STOP || | |
1592 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1593 | s->deserialized_state == SERVICE_STOP_SIGKILL || | |
1594 | s->deserialized_state == SERVICE_STOP_POST || | |
1595 | s->deserialized_state == SERVICE_FINAL_SIGTERM || | |
92c1622e LP |
1596 | s->deserialized_state == SERVICE_FINAL_SIGKILL) { |
1597 | ||
1598 | usec_t k; | |
6c12b52e | 1599 | |
92c1622e LP |
1600 | k = s->deserialized_state == SERVICE_START_PRE || s->deserialized_state == SERVICE_START || |
1601 | s->deserialized_state == SERVICE_START_POST || s->deserialized_state == SERVICE_RELOAD ? | |
1602 | s->timeout_start_usec : s->timeout_stop_usec; | |
e558336f | 1603 | |
92c1622e LP |
1604 | /* For the start/stop timeouts 0 means off */ |
1605 | if (k > 0) { | |
1606 | r = service_arm_timer(s, k); | |
36697dc0 | 1607 | if (r < 0) |
e558336f LP |
1608 | return r; |
1609 | } | |
1610 | } | |
a16e1123 | 1611 | |
92c1622e LP |
1612 | if (s->deserialized_state == SERVICE_AUTO_RESTART) { |
1613 | ||
1614 | /* The restart timeouts 0 means immediately */ | |
1615 | r = service_arm_timer(s, s->restart_usec); | |
1616 | if (r < 0) | |
1617 | return r; | |
1618 | } | |
1619 | ||
a16e1123 LP |
1620 | if ((s->deserialized_state == SERVICE_START && |
1621 | (s->type == SERVICE_FORKING || | |
8c47c732 | 1622 | s->type == SERVICE_DBUS || |
34e9ba66 | 1623 | s->type == SERVICE_ONESHOT || |
8c47c732 | 1624 | s->type == SERVICE_NOTIFY)) || |
a16e1123 LP |
1625 | s->deserialized_state == SERVICE_START_POST || |
1626 | s->deserialized_state == SERVICE_RUNNING || | |
1627 | s->deserialized_state == SERVICE_RELOAD || | |
1628 | s->deserialized_state == SERVICE_STOP || | |
1629 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1630 | s->deserialized_state == SERVICE_STOP_SIGKILL) | |
117dcc57 ZJS |
1631 | if (s->main_pid > 0) { |
1632 | r = unit_watch_pid(UNIT(s), s->main_pid); | |
1633 | if (r < 0) | |
a16e1123 | 1634 | return r; |
117dcc57 | 1635 | } |
a16e1123 LP |
1636 | |
1637 | if (s->deserialized_state == SERVICE_START_PRE || | |
1638 | s->deserialized_state == SERVICE_START || | |
1639 | s->deserialized_state == SERVICE_START_POST || | |
1640 | s->deserialized_state == SERVICE_RELOAD || | |
1641 | s->deserialized_state == SERVICE_STOP || | |
1642 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1643 | s->deserialized_state == SERVICE_STOP_SIGKILL || | |
1644 | s->deserialized_state == SERVICE_STOP_POST || | |
1645 | s->deserialized_state == SERVICE_FINAL_SIGTERM || | |
1646 | s->deserialized_state == SERVICE_FINAL_SIGKILL) | |
117dcc57 ZJS |
1647 | if (s->control_pid > 0) { |
1648 | r = unit_watch_pid(UNIT(s), s->control_pid); | |
1649 | if (r < 0) | |
a16e1123 | 1650 | return r; |
117dcc57 | 1651 | } |
a16e1123 | 1652 | |
bb242b7b MO |
1653 | if (s->deserialized_state == SERVICE_START_POST || |
1654 | s->deserialized_state == SERVICE_RUNNING) | |
1655 | service_handle_watchdog(s); | |
1656 | ||
a16e1123 LP |
1657 | service_set_state(s, s->deserialized_state); |
1658 | } | |
92c1622e | 1659 | |
a16e1123 LP |
1660 | return 0; |
1661 | } | |
1662 | ||
44d8db9e LP |
1663 | static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { |
1664 | Iterator i; | |
1665 | int r; | |
1666 | int *rfds = NULL; | |
1667 | unsigned rn_fds = 0; | |
57020a3a | 1668 | Unit *u; |
44d8db9e LP |
1669 | |
1670 | assert(s); | |
1671 | assert(fds); | |
1672 | assert(n_fds); | |
1673 | ||
6cf6bbc2 LP |
1674 | if (s->socket_fd >= 0) |
1675 | return 0; | |
1676 | ||
1124fe6f | 1677 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
44d8db9e LP |
1678 | int *cfds; |
1679 | unsigned cn_fds; | |
57020a3a LP |
1680 | Socket *sock; |
1681 | ||
ac155bb8 | 1682 | if (u->type != UNIT_SOCKET) |
57020a3a LP |
1683 | continue; |
1684 | ||
1685 | sock = SOCKET(u); | |
44d8db9e | 1686 | |
117dcc57 ZJS |
1687 | r = socket_collect_fds(sock, &cfds, &cn_fds); |
1688 | if (r < 0) | |
44d8db9e LP |
1689 | goto fail; |
1690 | ||
1691 | if (!cfds) | |
1692 | continue; | |
1693 | ||
1694 | if (!rfds) { | |
1695 | rfds = cfds; | |
1696 | rn_fds = cn_fds; | |
1697 | } else { | |
1698 | int *t; | |
1699 | ||
117dcc57 ZJS |
1700 | t = new(int, rn_fds+cn_fds); |
1701 | if (!t) { | |
44d8db9e LP |
1702 | free(cfds); |
1703 | r = -ENOMEM; | |
1704 | goto fail; | |
1705 | } | |
1706 | ||
9c1b183c LP |
1707 | memcpy(t, rfds, rn_fds * sizeof(int)); |
1708 | memcpy(t+rn_fds, cfds, cn_fds * sizeof(int)); | |
44d8db9e LP |
1709 | free(rfds); |
1710 | free(cfds); | |
1711 | ||
1712 | rfds = t; | |
1713 | rn_fds = rn_fds+cn_fds; | |
1714 | } | |
1715 | } | |
1716 | ||
1717 | *fds = rfds; | |
1718 | *n_fds = rn_fds; | |
3e33402a | 1719 | |
44d8db9e LP |
1720 | return 0; |
1721 | ||
1722 | fail: | |
1723 | free(rfds); | |
3e33402a | 1724 | |
44d8db9e LP |
1725 | return r; |
1726 | } | |
1727 | ||
81a2b7ce LP |
1728 | static int service_spawn( |
1729 | Service *s, | |
1730 | ExecCommand *c, | |
1731 | bool timeout, | |
1732 | bool pass_fds, | |
1733 | bool apply_permissions, | |
1734 | bool apply_chroot, | |
1e3ad081 | 1735 | bool apply_tty_stdin, |
c952c6ec | 1736 | bool set_notify_socket, |
ecedd90f | 1737 | bool is_control, |
81a2b7ce LP |
1738 | pid_t *_pid) { |
1739 | ||
034c6ed7 LP |
1740 | pid_t pid; |
1741 | int r; | |
117dcc57 | 1742 | int *fds = NULL; |
7fd1b19b | 1743 | _cleanup_free_ int *fdsbuf = NULL; |
2105e76a | 1744 | unsigned n_fds = 0, n_env = 0; |
7fd1b19b | 1745 | _cleanup_strv_free_ char |
117dcc57 | 1746 | **argv = NULL, **final_env = NULL, **our_env = NULL; |
4ad49000 | 1747 | const char *path; |
034c6ed7 LP |
1748 | |
1749 | assert(s); | |
1750 | assert(c); | |
1751 | assert(_pid); | |
1752 | ||
4ad49000 LP |
1753 | unit_realize_cgroup(UNIT(s)); |
1754 | ||
613b411c LP |
1755 | r = unit_setup_exec_runtime(UNIT(s)); |
1756 | if (r < 0) | |
1757 | goto fail; | |
1758 | ||
6cf6bbc2 LP |
1759 | if (pass_fds || |
1760 | s->exec_context.std_input == EXEC_INPUT_SOCKET || | |
1761 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1762 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1763 | ||
4f2d528d LP |
1764 | if (s->socket_fd >= 0) { |
1765 | fds = &s->socket_fd; | |
1766 | n_fds = 1; | |
6cf6bbc2 | 1767 | } else { |
117dcc57 ZJS |
1768 | r = service_collect_fds(s, &fdsbuf, &n_fds); |
1769 | if (r < 0) | |
6cf6bbc2 LP |
1770 | goto fail; |
1771 | ||
1772 | fds = fdsbuf; | |
1773 | } | |
4f2d528d | 1774 | } |
44d8db9e | 1775 | |
92c1622e LP |
1776 | if (timeout && s->timeout_start_usec > 0) { |
1777 | r = service_arm_timer(s, s->timeout_start_usec); | |
1778 | if (r < 0) | |
1779 | goto fail; | |
1780 | } else | |
1781 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
034c6ed7 | 1782 | |
19f6d710 LP |
1783 | r = unit_full_printf_strv(UNIT(s), c->argv, &argv); |
1784 | if (r < 0) | |
9e2f7c11 | 1785 | goto fail; |
9e2f7c11 | 1786 | |
97ae63e2 LP |
1787 | our_env = new0(char*, 5); |
1788 | if (!our_env) { | |
2105e76a LP |
1789 | r = -ENOMEM; |
1790 | goto fail; | |
1791 | } | |
c952c6ec | 1792 | |
2105e76a | 1793 | if (set_notify_socket) |
1124fe6f | 1794 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) { |
c952c6ec LP |
1795 | r = -ENOMEM; |
1796 | goto fail; | |
1797 | } | |
1798 | ||
2105e76a LP |
1799 | if (s->main_pid > 0) |
1800 | if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) { | |
c952c6ec LP |
1801 | r = -ENOMEM; |
1802 | goto fail; | |
1803 | } | |
2105e76a | 1804 | |
6e0bcc98 MO |
1805 | if (s->watchdog_usec > 0) |
1806 | if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) { | |
1807 | r = -ENOMEM; | |
1808 | goto fail; | |
1809 | } | |
1810 | ||
4ad49000 | 1811 | if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM) |
97ae63e2 LP |
1812 | if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) { |
1813 | r = -ENOMEM; | |
1814 | goto fail; | |
1815 | } | |
1816 | ||
1817 | final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL); | |
1818 | if (!final_env) { | |
2105e76a LP |
1819 | r = -ENOMEM; |
1820 | goto fail; | |
1821 | } | |
c952c6ec | 1822 | |
4ad49000 LP |
1823 | if (is_control && UNIT(s)->cgroup_path) { |
1824 | path = strappenda(UNIT(s)->cgroup_path, "/control"); | |
1825 | cg_create(SYSTEMD_CGROUP_CONTROLLER, path); | |
1826 | } else | |
1827 | path = UNIT(s)->cgroup_path; | |
1828 | ||
9e2f7c11 LP |
1829 | r = exec_spawn(c, |
1830 | argv, | |
1831 | &s->exec_context, | |
1832 | fds, n_fds, | |
2105e76a | 1833 | final_env, |
9e2f7c11 LP |
1834 | apply_permissions, |
1835 | apply_chroot, | |
1e3ad081 | 1836 | apply_tty_stdin, |
1124fe6f | 1837 | UNIT(s)->manager->confirm_spawn, |
13b84ec7 | 1838 | UNIT(s)->manager->cgroup_supported, |
4ad49000 | 1839 | path, |
62bca2c6 | 1840 | UNIT(s)->id, |
f2b68789 | 1841 | s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL, |
613b411c | 1842 | s->exec_runtime, |
9e2f7c11 | 1843 | &pid); |
9e2f7c11 | 1844 | if (r < 0) |
034c6ed7 LP |
1845 | goto fail; |
1846 | ||
117dcc57 ZJS |
1847 | r = unit_watch_pid(UNIT(s), pid); |
1848 | if (r < 0) | |
034c6ed7 LP |
1849 | /* FIXME: we need to do something here */ |
1850 | goto fail; | |
1851 | ||
1852 | *_pid = pid; | |
1853 | ||
5cb5a6ff | 1854 | return 0; |
034c6ed7 LP |
1855 | |
1856 | fail: | |
1857 | if (timeout) | |
718db961 | 1858 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 LP |
1859 | |
1860 | return r; | |
1861 | } | |
1862 | ||
80876c20 LP |
1863 | static int main_pid_good(Service *s) { |
1864 | assert(s); | |
1865 | ||
1866 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1867 | * don't know */ | |
1868 | ||
1869 | /* If we know the pid file, then lets just check if it is | |
1870 | * still valid */ | |
6dfa5494 LP |
1871 | if (s->main_pid_known) { |
1872 | ||
1873 | /* If it's an alien child let's check if it is still | |
1874 | * alive ... */ | |
62220cf7 | 1875 | if (s->main_pid_alien && s->main_pid > 0) |
6dfa5494 LP |
1876 | return kill(s->main_pid, 0) >= 0 || errno != ESRCH; |
1877 | ||
1878 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1879 | * which we really should wait for to collect exit | |
1880 | * status and code */ | |
80876c20 | 1881 | return s->main_pid > 0; |
6dfa5494 | 1882 | } |
80876c20 LP |
1883 | |
1884 | /* We don't know the pid */ | |
1885 | return -EAGAIN; | |
1886 | } | |
1887 | ||
44a6b1b6 | 1888 | _pure_ static int control_pid_good(Service *s) { |
80876c20 LP |
1889 | assert(s); |
1890 | ||
1891 | return s->control_pid > 0; | |
1892 | } | |
1893 | ||
1894 | static int cgroup_good(Service *s) { | |
1895 | int r; | |
1896 | ||
1897 | assert(s); | |
1898 | ||
4ad49000 LP |
1899 | if (!UNIT(s)->cgroup_path) |
1900 | return 0; | |
1901 | ||
1902 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true); | |
117dcc57 | 1903 | if (r < 0) |
80876c20 LP |
1904 | return r; |
1905 | ||
1906 | return !r; | |
1907 | } | |
1908 | ||
f42806df | 1909 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 LP |
1910 | int r; |
1911 | assert(s); | |
1912 | ||
f42806df LP |
1913 | if (f != SERVICE_SUCCESS) |
1914 | s->result = f; | |
034c6ed7 | 1915 | |
0c7f15b3 MS |
1916 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1917 | ||
034c6ed7 | 1918 | if (allow_restart && |
47342320 | 1919 | !s->forbid_restart && |
034c6ed7 | 1920 | (s->restart == SERVICE_RESTART_ALWAYS || |
f42806df LP |
1921 | (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) || |
1922 | (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) || | |
dc99a976 | 1923 | (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) || |
f42806df | 1924 | (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL || |
96342de6 LN |
1925 | s->result == SERVICE_FAILURE_CORE_DUMP))) && |
1926 | (s->result != SERVICE_FAILURE_EXIT_CODE || | |
1927 | !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) && | |
1928 | (s->result != SERVICE_FAILURE_SIGNAL || | |
718db961 | 1929 | !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))) { |
034c6ed7 | 1930 | |
718db961 | 1931 | r = service_arm_timer(s, s->restart_usec); |
f42806df | 1932 | if (r < 0) |
034c6ed7 LP |
1933 | goto fail; |
1934 | ||
1935 | service_set_state(s, SERVICE_AUTO_RESTART); | |
0c7f15b3 | 1936 | } |
034c6ed7 | 1937 | |
47342320 LP |
1938 | s->forbid_restart = false; |
1939 | ||
c17ec25e | 1940 | /* we want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1941 | exec_runtime_destroy(s->exec_runtime); |
1942 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1943 | |
9285c9ff LN |
1944 | /* Try to delete the pid file. At this point it will be |
1945 | * out-of-date, and some software might be confused by it, so | |
1946 | * let's remove it. */ | |
1947 | if (s->pid_file) | |
1948 | unlink_noerrno(s->pid_file); | |
1949 | ||
034c6ed7 LP |
1950 | return; |
1951 | ||
1952 | fail: | |
66870f90 ZJS |
1953 | log_warning_unit(UNIT(s)->id, |
1954 | "%s failed to run install restart timer: %s", | |
1955 | UNIT(s)->id, strerror(-r)); | |
f42806df | 1956 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1957 | } |
1958 | ||
f42806df | 1959 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1960 | int r; |
1961 | assert(s); | |
1962 | ||
f42806df LP |
1963 | if (f != SERVICE_SUCCESS) |
1964 | s->result = f; | |
034c6ed7 | 1965 | |
5e94833f LP |
1966 | service_unwatch_control_pid(s); |
1967 | ||
117dcc57 ZJS |
1968 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1969 | if (s->control_command) { | |
867b3b7d LP |
1970 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1971 | ||
ecedd90f LP |
1972 | r = service_spawn(s, |
1973 | s->control_command, | |
1974 | true, | |
1975 | false, | |
1976 | !s->permissions_start_only, | |
1977 | !s->root_directory_start_only, | |
1978 | true, | |
1979 | false, | |
1980 | true, | |
1981 | &s->control_pid); | |
1982 | if (r < 0) | |
034c6ed7 LP |
1983 | goto fail; |
1984 | ||
d6ea93e3 | 1985 | |
80876c20 LP |
1986 | service_set_state(s, SERVICE_STOP_POST); |
1987 | } else | |
c961869a | 1988 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1989 | |
1990 | return; | |
1991 | ||
1992 | fail: | |
66870f90 ZJS |
1993 | log_warning_unit(UNIT(s)->id, |
1994 | "%s failed to run 'stop-post' task: %s", | |
1995 | UNIT(s)->id, strerror(-r)); | |
f42806df | 1996 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1997 | } |
1998 | ||
f42806df | 1999 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 2000 | int r; |
034c6ed7 LP |
2001 | |
2002 | assert(s); | |
2003 | ||
f42806df LP |
2004 | if (f != SERVICE_SUCCESS) |
2005 | s->result = f; | |
034c6ed7 | 2006 | |
cd2086fe LP |
2007 | r = unit_kill_context( |
2008 | UNIT(s), | |
2009 | &s->kill_context, | |
2010 | state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM, | |
2011 | s->main_pid, | |
2012 | s->control_pid, | |
2013 | s->main_pid_alien); | |
2014 | if (r < 0) | |
2015 | goto fail; | |
034c6ed7 | 2016 | |
cd2086fe | 2017 | if (r > 0) { |
d568a335 | 2018 | if (s->timeout_stop_usec > 0) { |
718db961 | 2019 | r = service_arm_timer(s, s->timeout_stop_usec); |
d568a335 | 2020 | if (r < 0) |
e558336f | 2021 | goto fail; |
d568a335 | 2022 | } |
d6ea93e3 | 2023 | |
80876c20 LP |
2024 | service_set_state(s, state); |
2025 | } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) | |
f42806df | 2026 | service_enter_stop_post(s, SERVICE_SUCCESS); |
80876c20 | 2027 | else |
f42806df | 2028 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
2029 | |
2030 | return; | |
2031 | ||
2032 | fail: | |
66870f90 ZJS |
2033 | log_warning_unit(UNIT(s)->id, |
2034 | "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r)); | |
034c6ed7 | 2035 | |
80876c20 | 2036 | if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) |
f42806df | 2037 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2038 | else |
f42806df | 2039 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2040 | } |
2041 | ||
f42806df | 2042 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 2043 | int r; |
5925dd3c | 2044 | |
034c6ed7 LP |
2045 | assert(s); |
2046 | ||
f42806df LP |
2047 | if (f != SERVICE_SUCCESS) |
2048 | s->result = f; | |
034c6ed7 | 2049 | |
5e94833f LP |
2050 | service_unwatch_control_pid(s); |
2051 | ||
117dcc57 ZJS |
2052 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
2053 | if (s->control_command) { | |
867b3b7d LP |
2054 | s->control_command_id = SERVICE_EXEC_STOP; |
2055 | ||
ecedd90f LP |
2056 | r = service_spawn(s, |
2057 | s->control_command, | |
2058 | true, | |
2059 | false, | |
2060 | !s->permissions_start_only, | |
2061 | !s->root_directory_start_only, | |
2062 | false, | |
2063 | false, | |
2064 | true, | |
2065 | &s->control_pid); | |
2066 | if (r < 0) | |
034c6ed7 LP |
2067 | goto fail; |
2068 | ||
80876c20 LP |
2069 | service_set_state(s, SERVICE_STOP); |
2070 | } else | |
f42806df | 2071 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
2072 | |
2073 | return; | |
2074 | ||
2075 | fail: | |
66870f90 ZJS |
2076 | log_warning_unit(UNIT(s)->id, |
2077 | "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2078 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2079 | } |
2080 | ||
f42806df | 2081 | static void service_enter_running(Service *s, ServiceResult f) { |
4eab639f | 2082 | int main_pid_ok, cgroup_ok; |
80876c20 LP |
2083 | assert(s); |
2084 | ||
f42806df LP |
2085 | if (f != SERVICE_SUCCESS) |
2086 | s->result = f; | |
80876c20 | 2087 | |
4eab639f LP |
2088 | main_pid_ok = main_pid_good(s); |
2089 | cgroup_ok = cgroup_good(s); | |
2090 | ||
2091 | if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) && | |
05e343b7 | 2092 | (s->bus_name_good || s->type != SERVICE_DBUS)) |
80876c20 | 2093 | service_set_state(s, SERVICE_RUNNING); |
02ee865a | 2094 | else if (s->remain_after_exit) |
80876c20 LP |
2095 | service_set_state(s, SERVICE_EXITED); |
2096 | else | |
f42806df | 2097 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
2098 | } |
2099 | ||
034c6ed7 LP |
2100 | static void service_enter_start_post(Service *s) { |
2101 | int r; | |
2102 | assert(s); | |
2103 | ||
5e94833f LP |
2104 | service_unwatch_control_pid(s); |
2105 | ||
bb242b7b MO |
2106 | if (s->watchdog_usec > 0) |
2107 | service_reset_watchdog(s); | |
2108 | ||
117dcc57 ZJS |
2109 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
2110 | if (s->control_command) { | |
867b3b7d LP |
2111 | s->control_command_id = SERVICE_EXEC_START_POST; |
2112 | ||
ecedd90f LP |
2113 | r = service_spawn(s, |
2114 | s->control_command, | |
2115 | true, | |
2116 | false, | |
2117 | !s->permissions_start_only, | |
2118 | !s->root_directory_start_only, | |
2119 | false, | |
2120 | false, | |
2121 | true, | |
2122 | &s->control_pid); | |
2123 | if (r < 0) | |
034c6ed7 LP |
2124 | goto fail; |
2125 | ||
80876c20 LP |
2126 | service_set_state(s, SERVICE_START_POST); |
2127 | } else | |
f42806df | 2128 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2129 | |
2130 | return; | |
2131 | ||
2132 | fail: | |
66870f90 ZJS |
2133 | log_warning_unit(UNIT(s)->id, |
2134 | "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2135 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2136 | } |
2137 | ||
4ad49000 LP |
2138 | static void service_kill_control_processes(Service *s) { |
2139 | char *p; | |
2140 | ||
2141 | if (!UNIT(s)->cgroup_path) | |
2142 | return; | |
2143 | ||
2144 | p = strappenda(UNIT(s)->cgroup_path, "/control"); | |
4ad49000 LP |
2145 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL); |
2146 | } | |
2147 | ||
034c6ed7 | 2148 | static void service_enter_start(Service *s) { |
4ad49000 | 2149 | ExecCommand *c; |
034c6ed7 LP |
2150 | pid_t pid; |
2151 | int r; | |
2152 | ||
2153 | assert(s); | |
2154 | ||
2155 | assert(s->exec_command[SERVICE_EXEC_START]); | |
34e9ba66 | 2156 | assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT); |
034c6ed7 | 2157 | |
41efeaec LP |
2158 | service_unwatch_control_pid(s); |
2159 | service_unwatch_main_pid(s); | |
80876c20 | 2160 | |
8f53a7b8 LP |
2161 | /* We want to ensure that nobody leaks processes from |
2162 | * START_PRE here, so let's go on a killing spree, People | |
2163 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 2164 | service_kill_control_processes(s); |
8f53a7b8 | 2165 | |
867b3b7d LP |
2166 | if (s->type == SERVICE_FORKING) { |
2167 | s->control_command_id = SERVICE_EXEC_START; | |
2168 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
2169 | ||
2170 | s->main_command = NULL; | |
2171 | } else { | |
2172 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2173 | s->control_command = NULL; | |
2174 | ||
2175 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
2176 | } | |
34e9ba66 | 2177 | |
ecedd90f LP |
2178 | r = service_spawn(s, |
2179 | c, | |
117dcc57 ZJS |
2180 | s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || |
2181 | s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT, | |
ecedd90f LP |
2182 | true, |
2183 | true, | |
2184 | true, | |
2185 | true, | |
2186 | s->notify_access != NOTIFY_NONE, | |
2187 | false, | |
2188 | &pid); | |
2189 | if (r < 0) | |
034c6ed7 LP |
2190 | goto fail; |
2191 | ||
f2b68789 | 2192 | if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) { |
034c6ed7 LP |
2193 | /* For simple services we immediately start |
2194 | * the START_POST binaries. */ | |
2195 | ||
5925dd3c | 2196 | service_set_main_pid(s, pid); |
034c6ed7 LP |
2197 | service_enter_start_post(s); |
2198 | ||
2199 | } else if (s->type == SERVICE_FORKING) { | |
2200 | ||
2201 | /* For forking services we wait until the start | |
2202 | * process exited. */ | |
2203 | ||
e55224ca | 2204 | s->control_pid = pid; |
80876c20 LP |
2205 | service_set_state(s, SERVICE_START); |
2206 | ||
34e9ba66 | 2207 | } else if (s->type == SERVICE_ONESHOT || |
8c47c732 LP |
2208 | s->type == SERVICE_DBUS || |
2209 | s->type == SERVICE_NOTIFY) { | |
7d55e835 | 2210 | |
34e9ba66 | 2211 | /* For oneshot services we wait until the start |
7d55e835 LP |
2212 | * process exited, too, but it is our main process. */ |
2213 | ||
05e343b7 | 2214 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
2215 | * but wait for the bus name to appear on the |
2216 | * bus. Notify services are similar. */ | |
05e343b7 | 2217 | |
5925dd3c | 2218 | service_set_main_pid(s, pid); |
80876c20 | 2219 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
2220 | } else |
2221 | assert_not_reached("Unknown service type"); | |
2222 | ||
2223 | return; | |
2224 | ||
2225 | fail: | |
66870f90 ZJS |
2226 | log_warning_unit(UNIT(s)->id, |
2227 | "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2228 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2229 | } |
2230 | ||
2231 | static void service_enter_start_pre(Service *s) { | |
2232 | int r; | |
2233 | ||
2234 | assert(s); | |
2235 | ||
5e94833f LP |
2236 | service_unwatch_control_pid(s); |
2237 | ||
117dcc57 ZJS |
2238 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
2239 | if (s->control_command) { | |
8f53a7b8 LP |
2240 | /* Before we start anything, let's clear up what might |
2241 | * be left from previous runs. */ | |
4ad49000 | 2242 | service_kill_control_processes(s); |
8f53a7b8 | 2243 | |
867b3b7d LP |
2244 | s->control_command_id = SERVICE_EXEC_START_PRE; |
2245 | ||
ecedd90f LP |
2246 | r = service_spawn(s, |
2247 | s->control_command, | |
2248 | true, | |
2249 | false, | |
2250 | !s->permissions_start_only, | |
2251 | !s->root_directory_start_only, | |
2252 | true, | |
2253 | false, | |
2254 | true, | |
2255 | &s->control_pid); | |
2256 | if (r < 0) | |
034c6ed7 LP |
2257 | goto fail; |
2258 | ||
80876c20 LP |
2259 | service_set_state(s, SERVICE_START_PRE); |
2260 | } else | |
034c6ed7 LP |
2261 | service_enter_start(s); |
2262 | ||
2263 | return; | |
2264 | ||
2265 | fail: | |
66870f90 ZJS |
2266 | log_warning_unit(UNIT(s)->id, |
2267 | "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2268 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2269 | } |
2270 | ||
2271 | static void service_enter_restart(Service *s) { | |
718db961 | 2272 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 2273 | int r; |
398ef8ba | 2274 | |
034c6ed7 LP |
2275 | assert(s); |
2276 | ||
a8bb2e65 LP |
2277 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
2278 | /* Don't restart things if we are going down anyway */ | |
66870f90 ZJS |
2279 | log_info_unit(UNIT(s)->id, |
2280 | "Stop job pending for unit, delaying automatic restart."); | |
2edfa366 | 2281 | |
718db961 | 2282 | r = service_arm_timer(s, s->restart_usec); |
a8bb2e65 | 2283 | if (r < 0) |
2edfa366 | 2284 | goto fail; |
feae8adb DW |
2285 | |
2286 | return; | |
2edfa366 LP |
2287 | } |
2288 | ||
48bb5876 DW |
2289 | /* Any units that are bound to this service must also be |
2290 | * restarted. We use JOB_RESTART (instead of the more obvious | |
2291 | * JOB_START) here so that those dependency jobs will be added | |
2292 | * as well. */ | |
2293 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL); | |
2294 | if (r < 0) | |
034c6ed7 LP |
2295 | goto fail; |
2296 | ||
a8bb2e65 LP |
2297 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
2298 | * it will be canceled as part of the service_stop() call that | |
2299 | * is executed as part of JOB_RESTART. */ | |
2300 | ||
66870f90 ZJS |
2301 | log_debug_unit(UNIT(s)->id, |
2302 | "%s scheduled restart job.", UNIT(s)->id); | |
034c6ed7 LP |
2303 | return; |
2304 | ||
2305 | fail: | |
66870f90 ZJS |
2306 | log_warning_unit(UNIT(s)->id, |
2307 | "%s failed to schedule restart job: %s", | |
718db961 | 2308 | UNIT(s)->id, bus_error_message(&error, -r)); |
f42806df | 2309 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
2310 | } |
2311 | ||
2312 | static void service_enter_reload(Service *s) { | |
2313 | int r; | |
2314 | ||
2315 | assert(s); | |
2316 | ||
5e94833f LP |
2317 | service_unwatch_control_pid(s); |
2318 | ||
117dcc57 ZJS |
2319 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
2320 | if (s->control_command) { | |
867b3b7d LP |
2321 | s->control_command_id = SERVICE_EXEC_RELOAD; |
2322 | ||
ecedd90f LP |
2323 | r = service_spawn(s, |
2324 | s->control_command, | |
2325 | true, | |
2326 | false, | |
2327 | !s->permissions_start_only, | |
2328 | !s->root_directory_start_only, | |
2329 | false, | |
2330 | false, | |
2331 | true, | |
2332 | &s->control_pid); | |
2333 | if (r < 0) | |
034c6ed7 LP |
2334 | goto fail; |
2335 | ||
80876c20 LP |
2336 | service_set_state(s, SERVICE_RELOAD); |
2337 | } else | |
f42806df | 2338 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2339 | |
2340 | return; | |
2341 | ||
2342 | fail: | |
66870f90 ZJS |
2343 | log_warning_unit(UNIT(s)->id, |
2344 | "%s failed to run 'reload' task: %s", | |
2345 | UNIT(s)->id, strerror(-r)); | |
f42806df LP |
2346 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2347 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2348 | } |
2349 | ||
f42806df | 2350 | static void service_run_next_control(Service *s) { |
034c6ed7 LP |
2351 | int r; |
2352 | ||
2353 | assert(s); | |
2354 | assert(s->control_command); | |
2355 | assert(s->control_command->command_next); | |
2356 | ||
34e9ba66 | 2357 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2358 | |
34e9ba66 | 2359 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2360 | service_unwatch_control_pid(s); |
2361 | ||
ecedd90f LP |
2362 | r = service_spawn(s, |
2363 | s->control_command, | |
2364 | true, | |
2365 | false, | |
2366 | !s->permissions_start_only, | |
2367 | !s->root_directory_start_only, | |
2368 | s->control_command_id == SERVICE_EXEC_START_PRE || | |
2369 | s->control_command_id == SERVICE_EXEC_STOP_POST, | |
2370 | false, | |
2371 | true, | |
2372 | &s->control_pid); | |
2373 | if (r < 0) | |
034c6ed7 LP |
2374 | goto fail; |
2375 | ||
2376 | return; | |
2377 | ||
2378 | fail: | |
66870f90 ZJS |
2379 | log_warning_unit(UNIT(s)->id, |
2380 | "%s failed to run next control task: %s", | |
2381 | UNIT(s)->id, strerror(-r)); | |
034c6ed7 | 2382 | |
80876c20 | 2383 | if (s->state == SERVICE_START_PRE) |
f42806df | 2384 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
80876c20 | 2385 | else if (s->state == SERVICE_STOP) |
f42806df | 2386 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2387 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2388 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2389 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2390 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2391 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2392 | } else |
f42806df | 2393 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2394 | } |
2395 | ||
f42806df | 2396 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2397 | pid_t pid; |
2398 | int r; | |
2399 | ||
2400 | assert(s); | |
867b3b7d LP |
2401 | assert(s->main_command); |
2402 | assert(s->main_command->command_next); | |
2403 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2404 | |
867b3b7d | 2405 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2406 | service_unwatch_main_pid(s); |
2407 | ||
ecedd90f LP |
2408 | r = service_spawn(s, |
2409 | s->main_command, | |
98709151 | 2410 | true, |
ecedd90f LP |
2411 | true, |
2412 | true, | |
2413 | true, | |
2414 | true, | |
2415 | s->notify_access != NOTIFY_NONE, | |
2416 | false, | |
2417 | &pid); | |
2418 | if (r < 0) | |
34e9ba66 LP |
2419 | goto fail; |
2420 | ||
2421 | service_set_main_pid(s, pid); | |
2422 | ||
2423 | return; | |
2424 | ||
2425 | fail: | |
66870f90 ZJS |
2426 | log_warning_unit(UNIT(s)->id, |
2427 | "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2428 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2429 | } |
2430 | ||
4b939747 MO |
2431 | static int service_start_limit_test(Service *s) { |
2432 | assert(s); | |
2433 | ||
2434 | if (ratelimit_test(&s->start_limit)) | |
2435 | return 0; | |
2436 | ||
2437 | switch (s->start_limit_action) { | |
2438 | ||
2439 | case SERVICE_START_LIMIT_NONE: | |
66870f90 ZJS |
2440 | log_warning_unit(UNIT(s)->id, |
2441 | "%s start request repeated too quickly, refusing to start.", | |
2442 | UNIT(s)->id); | |
4b939747 MO |
2443 | break; |
2444 | ||
2445 | case SERVICE_START_LIMIT_REBOOT: { | |
718db961 | 2446 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
4b939747 MO |
2447 | int r; |
2448 | ||
66870f90 ZJS |
2449 | log_warning_unit(UNIT(s)->id, |
2450 | "%s start request repeated too quickly, rebooting.", UNIT(s)->id); | |
4b939747 | 2451 | |
117dcc57 ZJS |
2452 | r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, |
2453 | SPECIAL_REBOOT_TARGET, JOB_REPLACE, | |
2454 | true, &error, NULL); | |
718db961 | 2455 | if (r < 0) |
66870f90 | 2456 | log_error_unit(UNIT(s)->id, |
718db961 | 2457 | "Failed to reboot: %s.", bus_error_message(&error, r)); |
4b939747 MO |
2458 | |
2459 | break; | |
2460 | } | |
2461 | ||
2462 | case SERVICE_START_LIMIT_REBOOT_FORCE: | |
66870f90 ZJS |
2463 | log_warning_unit(UNIT(s)->id, |
2464 | "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id); | |
4b939747 MO |
2465 | UNIT(s)->manager->exit_code = MANAGER_REBOOT; |
2466 | break; | |
2467 | ||
2468 | case SERVICE_START_LIMIT_REBOOT_IMMEDIATE: | |
66870f90 ZJS |
2469 | log_warning_unit(UNIT(s)->id, |
2470 | "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id); | |
0049f05a | 2471 | sync(); |
4b939747 MO |
2472 | reboot(RB_AUTOBOOT); |
2473 | break; | |
2474 | ||
2475 | default: | |
66870f90 ZJS |
2476 | log_error_unit(UNIT(s)->id, |
2477 | "start limit action=%i", s->start_limit_action); | |
4b939747 MO |
2478 | assert_not_reached("Unknown StartLimitAction."); |
2479 | } | |
2480 | ||
2481 | return -ECANCELED; | |
2482 | } | |
2483 | ||
87f0e418 LP |
2484 | static int service_start(Unit *u) { |
2485 | Service *s = SERVICE(u); | |
4b939747 | 2486 | int r; |
5cb5a6ff LP |
2487 | |
2488 | assert(s); | |
2489 | ||
034c6ed7 LP |
2490 | /* We cannot fulfill this request right now, try again later |
2491 | * please! */ | |
2492 | if (s->state == SERVICE_STOP || | |
2493 | s->state == SERVICE_STOP_SIGTERM || | |
2494 | s->state == SERVICE_STOP_SIGKILL || | |
2495 | s->state == SERVICE_STOP_POST || | |
2496 | s->state == SERVICE_FINAL_SIGTERM || | |
2497 | s->state == SERVICE_FINAL_SIGKILL) | |
5cb5a6ff LP |
2498 | return -EAGAIN; |
2499 | ||
034c6ed7 LP |
2500 | /* Already on it! */ |
2501 | if (s->state == SERVICE_START_PRE || | |
2502 | s->state == SERVICE_START || | |
2503 | s->state == SERVICE_START_POST) | |
2504 | return 0; | |
2505 | ||
2e9d6c12 | 2506 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2507 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2508 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2509 | * service should be manually restarted, not started. We |
2510 | * simply return EAGAIN here, so that any start jobs stay | |
2511 | * queued, and assume that the auto restart timer will | |
2512 | * eventually trigger the restart. */ | |
2513 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2514 | return -EAGAIN; |
2e9d6c12 DW |
2515 | |
2516 | assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED); | |
5cb5a6ff | 2517 | |
1e2e8133 | 2518 | /* Make sure we don't enter a busy loop of some kind. */ |
4b939747 | 2519 | r = service_start_limit_test(s); |
c2f34808 | 2520 | if (r < 0) { |
8d1b002a | 2521 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false); |
4b939747 | 2522 | return r; |
c2f34808 | 2523 | } |
1e2e8133 | 2524 | |
f42806df LP |
2525 | s->result = SERVICE_SUCCESS; |
2526 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2527 | s->main_pid_known = false; |
6dfa5494 | 2528 | s->main_pid_alien = false; |
47342320 | 2529 | s->forbid_restart = false; |
034c6ed7 LP |
2530 | |
2531 | service_enter_start_pre(s); | |
2532 | return 0; | |
5cb5a6ff LP |
2533 | } |
2534 | ||
87f0e418 LP |
2535 | static int service_stop(Unit *u) { |
2536 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2537 | |
2538 | assert(s); | |
2539 | ||
f0c7b229 | 2540 | /* Don't create restart jobs from here. */ |
47342320 | 2541 | s->forbid_restart = true; |
034c6ed7 | 2542 | |
e537352b LP |
2543 | /* Already on it */ |
2544 | if (s->state == SERVICE_STOP || | |
2545 | s->state == SERVICE_STOP_SIGTERM || | |
2546 | s->state == SERVICE_STOP_SIGKILL || | |
2547 | s->state == SERVICE_STOP_POST || | |
2548 | s->state == SERVICE_FINAL_SIGTERM || | |
2549 | s->state == SERVICE_FINAL_SIGKILL) | |
2550 | return 0; | |
2551 | ||
f0c7b229 | 2552 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2553 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2554 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2555 | return 0; |
2556 | } | |
2557 | ||
3f6c78dc LP |
2558 | /* If there's already something running we go directly into |
2559 | * kill mode. */ | |
2560 | if (s->state == SERVICE_START_PRE || | |
2561 | s->state == SERVICE_START || | |
2562 | s->state == SERVICE_START_POST || | |
2563 | s->state == SERVICE_RELOAD) { | |
f42806df | 2564 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2565 | return 0; |
2566 | } | |
5cb5a6ff | 2567 | |
3f6c78dc LP |
2568 | assert(s->state == SERVICE_RUNNING || |
2569 | s->state == SERVICE_EXITED); | |
3a762661 | 2570 | |
f42806df | 2571 | service_enter_stop(s, SERVICE_SUCCESS); |
5cb5a6ff LP |
2572 | return 0; |
2573 | } | |
2574 | ||
87f0e418 LP |
2575 | static int service_reload(Unit *u) { |
2576 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2577 | |
2578 | assert(s); | |
2579 | ||
80876c20 | 2580 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
2581 | |
2582 | service_enter_reload(s); | |
5cb5a6ff LP |
2583 | return 0; |
2584 | } | |
2585 | ||
44a6b1b6 | 2586 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2587 | Service *s = SERVICE(u); |
034c6ed7 LP |
2588 | |
2589 | assert(s); | |
2590 | ||
2591 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2592 | } | |
2593 | ||
a16e1123 LP |
2594 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2595 | Service *s = SERVICE(u); | |
2596 | ||
2597 | assert(u); | |
2598 | assert(f); | |
2599 | assert(fds); | |
2600 | ||
2601 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
2602 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
2603 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2604 | |
2605 | if (s->control_pid > 0) | |
117dcc57 ZJS |
2606 | unit_serialize_item_format(u, f, "control-pid", "%lu", |
2607 | (unsigned long) s->control_pid); | |
a16e1123 | 2608 | |
5925dd3c LP |
2609 | if (s->main_pid_known && s->main_pid > 0) |
2610 | unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid); | |
a16e1123 LP |
2611 | |
2612 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
2613 | ||
3a2776bc LP |
2614 | if (s->status_text) |
2615 | unit_serialize_item(u, f, "status-text", s->status_text); | |
2616 | ||
cfc4eb4c LP |
2617 | /* FIXME: There's a minor uncleanliness here: if there are |
2618 | * multiple commands attached here, we will start from the | |
2619 | * first one again */ | |
a16e1123 | 2620 | if (s->control_command_id >= 0) |
117dcc57 ZJS |
2621 | unit_serialize_item(u, f, "control-command", |
2622 | service_exec_command_to_string(s->control_command_id)); | |
a16e1123 LP |
2623 | |
2624 | if (s->socket_fd >= 0) { | |
2625 | int copy; | |
2626 | ||
2627 | if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0) | |
2628 | return copy; | |
2629 | ||
2630 | unit_serialize_item_format(u, f, "socket-fd", "%i", copy); | |
2631 | } | |
2632 | ||
ecdbca40 | 2633 | if (s->main_exec_status.pid > 0) { |
117dcc57 ZJS |
2634 | unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", |
2635 | (unsigned long) s->main_exec_status.pid); | |
2636 | dual_timestamp_serialize(f, "main-exec-status-start", | |
2637 | &s->main_exec_status.start_timestamp); | |
2638 | dual_timestamp_serialize(f, "main-exec-status-exit", | |
2639 | &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2640 | |
799fd0fd | 2641 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
117dcc57 ZJS |
2642 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", |
2643 | s->main_exec_status.code); | |
2644 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", | |
2645 | s->main_exec_status.status); | |
ecdbca40 LP |
2646 | } |
2647 | } | |
a6927d7f | 2648 | if (dual_timestamp_is_set(&s->watchdog_timestamp)) |
117dcc57 ZJS |
2649 | dual_timestamp_serialize(f, "watchdog-timestamp", |
2650 | &s->watchdog_timestamp); | |
ecdbca40 | 2651 | |
6aca9a58 | 2652 | if (s->forbid_restart) |
8d1a2802 | 2653 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 2654 | |
a16e1123 LP |
2655 | return 0; |
2656 | } | |
2657 | ||
2658 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
2659 | Service *s = SERVICE(u); | |
a16e1123 LP |
2660 | |
2661 | assert(u); | |
2662 | assert(key); | |
2663 | assert(value); | |
2664 | assert(fds); | |
2665 | ||
2666 | if (streq(key, "state")) { | |
2667 | ServiceState state; | |
2668 | ||
117dcc57 ZJS |
2669 | state = service_state_from_string(value); |
2670 | if (state < 0) | |
66870f90 | 2671 | log_debug_unit(u->id, "Failed to parse state value %s", value); |
a16e1123 LP |
2672 | else |
2673 | s->deserialized_state = state; | |
f42806df LP |
2674 | } else if (streq(key, "result")) { |
2675 | ServiceResult f; | |
2676 | ||
2677 | f = service_result_from_string(value); | |
2678 | if (f < 0) | |
66870f90 | 2679 | log_debug_unit(u->id, "Failed to parse result value %s", value); |
f42806df LP |
2680 | else if (f != SERVICE_SUCCESS) |
2681 | s->result = f; | |
2682 | ||
2683 | } else if (streq(key, "reload-result")) { | |
2684 | ServiceResult f; | |
2685 | ||
2686 | f = service_result_from_string(value); | |
2687 | if (f < 0) | |
66870f90 | 2688 | log_debug_unit(u->id, "Failed to parse reload result value %s", value); |
f42806df LP |
2689 | else if (f != SERVICE_SUCCESS) |
2690 | s->reload_result = f; | |
a16e1123 | 2691 | |
a16e1123 | 2692 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2693 | pid_t pid; |
a16e1123 | 2694 | |
e364ad06 | 2695 | if (parse_pid(value, &pid) < 0) |
66870f90 | 2696 | log_debug_unit(u->id, "Failed to parse control-pid value %s", value); |
a16e1123 | 2697 | else |
e55224ca | 2698 | s->control_pid = pid; |
a16e1123 | 2699 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2700 | pid_t pid; |
a16e1123 | 2701 | |
e364ad06 | 2702 | if (parse_pid(value, &pid) < 0) |
66870f90 | 2703 | log_debug_unit(u->id, "Failed to parse main-pid value %s", value); |
7400b9d2 LP |
2704 | else { |
2705 | service_set_main_pid(s, pid); | |
2706 | unit_watch_pid(UNIT(s), pid); | |
2707 | } | |
a16e1123 LP |
2708 | } else if (streq(key, "main-pid-known")) { |
2709 | int b; | |
2710 | ||
117dcc57 ZJS |
2711 | b = parse_boolean(value); |
2712 | if (b < 0) | |
66870f90 | 2713 | log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value); |
a16e1123 LP |
2714 | else |
2715 | s->main_pid_known = b; | |
3a2776bc LP |
2716 | } else if (streq(key, "status-text")) { |
2717 | char *t; | |
2718 | ||
117dcc57 ZJS |
2719 | t = strdup(value); |
2720 | if (!t) | |
2721 | log_oom(); | |
2722 | else { | |
3a2776bc LP |
2723 | free(s->status_text); |
2724 | s->status_text = t; | |
2725 | } | |
2726 | ||
a16e1123 LP |
2727 | } else if (streq(key, "control-command")) { |
2728 | ServiceExecCommand id; | |
2729 | ||
117dcc57 ZJS |
2730 | id = service_exec_command_from_string(value); |
2731 | if (id < 0) | |
66870f90 | 2732 | log_debug_unit(u->id, "Failed to parse exec-command value %s", value); |
a16e1123 LP |
2733 | else { |
2734 | s->control_command_id = id; | |
2735 | s->control_command = s->exec_command[id]; | |
2736 | } | |
2737 | } else if (streq(key, "socket-fd")) { | |
2738 | int fd; | |
2739 | ||
2740 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
66870f90 | 2741 | log_debug_unit(u->id, "Failed to parse socket-fd value %s", value); |
a16e1123 LP |
2742 | else { |
2743 | ||
2744 | if (s->socket_fd >= 0) | |
2745 | close_nointr_nofail(s->socket_fd); | |
2746 | s->socket_fd = fdset_remove(fds, fd); | |
2747 | } | |
ecdbca40 LP |
2748 | } else if (streq(key, "main-exec-status-pid")) { |
2749 | pid_t pid; | |
2750 | ||
e364ad06 | 2751 | if (parse_pid(value, &pid) < 0) |
66870f90 | 2752 | log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value); |
ecdbca40 LP |
2753 | else |
2754 | s->main_exec_status.pid = pid; | |
2755 | } else if (streq(key, "main-exec-status-code")) { | |
2756 | int i; | |
2757 | ||
e364ad06 | 2758 | if (safe_atoi(value, &i) < 0) |
66870f90 | 2759 | log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value); |
ecdbca40 LP |
2760 | else |
2761 | s->main_exec_status.code = i; | |
2762 | } else if (streq(key, "main-exec-status-status")) { | |
2763 | int i; | |
2764 | ||
e364ad06 | 2765 | if (safe_atoi(value, &i) < 0) |
66870f90 | 2766 | log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value); |
ecdbca40 LP |
2767 | else |
2768 | s->main_exec_status.status = i; | |
799fd0fd LP |
2769 | } else if (streq(key, "main-exec-status-start")) |
2770 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
2771 | else if (streq(key, "main-exec-status-exit")) | |
2772 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
2773 | else if (streq(key, "watchdog-timestamp")) |
2774 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 2775 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2776 | int b; |
2777 | ||
2778 | b = parse_boolean(value); | |
2779 | if (b < 0) | |
8d1a2802 | 2780 | log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value); |
6aca9a58 SE |
2781 | else |
2782 | s->forbid_restart = b; | |
c17ec25e | 2783 | } else |
66870f90 | 2784 | log_debug_unit(u->id, "Unknown serialization key '%s'", key); |
a16e1123 LP |
2785 | |
2786 | return 0; | |
2787 | } | |
2788 | ||
44a6b1b6 | 2789 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
2790 | const UnitActiveState *table; |
2791 | ||
87f0e418 | 2792 | assert(u); |
5cb5a6ff | 2793 | |
e056b01d LP |
2794 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
2795 | ||
2796 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
2797 | } |
2798 | ||
10a94420 LP |
2799 | static const char *service_sub_state_to_string(Unit *u) { |
2800 | assert(u); | |
2801 | ||
2802 | return service_state_to_string(SERVICE(u)->state); | |
2803 | } | |
2804 | ||
701cc384 LP |
2805 | static bool service_check_gc(Unit *u) { |
2806 | Service *s = SERVICE(u); | |
2807 | ||
2808 | assert(s); | |
2809 | ||
6d55002a LP |
2810 | /* Never clean up services that still have a process around, |
2811 | * even if the service is formally dead. */ | |
2812 | if (cgroup_good(s) > 0 || | |
2813 | main_pid_good(s) > 0 || | |
2814 | control_pid_good(s) > 0) | |
2815 | return true; | |
2816 | ||
2817 | #ifdef HAVE_SYSV_COMPAT | |
1b64d026 | 2818 | if (s->is_sysv) |
6d55002a | 2819 | return true; |
07459bb6 | 2820 | #endif |
701cc384 | 2821 | |
6d55002a LP |
2822 | return false; |
2823 | } | |
2824 | ||
44a6b1b6 | 2825 | _pure_ static bool service_check_snapshot(Unit *u) { |
701cc384 LP |
2826 | Service *s = SERVICE(u); |
2827 | ||
2828 | assert(s); | |
2829 | ||
99f37ad8 | 2830 | return (s->socket_fd < 0); |
701cc384 LP |
2831 | } |
2832 | ||
3a111838 MS |
2833 | static int service_retry_pid_file(Service *s) { |
2834 | int r; | |
2835 | ||
2836 | assert(s->pid_file); | |
2837 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2838 | ||
2839 | r = service_load_pid_file(s, false); | |
2840 | if (r < 0) | |
2841 | return r; | |
2842 | ||
2843 | service_unwatch_pid_file(s); | |
2844 | ||
f42806df | 2845 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
2846 | return 0; |
2847 | } | |
2848 | ||
2849 | static int service_watch_pid_file(Service *s) { | |
2850 | int r; | |
2851 | ||
66870f90 ZJS |
2852 | log_debug_unit(UNIT(s)->id, |
2853 | "Setting watch for %s's PID file %s", | |
2854 | UNIT(s)->id, s->pid_file_pathspec->path); | |
718db961 | 2855 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
2856 | if (r < 0) |
2857 | goto fail; | |
2858 | ||
2859 | /* the pidfile might have appeared just before we set the watch */ | |
bc41f93e ZJS |
2860 | log_debug_unit(UNIT(s)->id, |
2861 | "Trying to read %s's PID file %s in case it changed", | |
2862 | UNIT(s)->id, s->pid_file_pathspec->path); | |
3a111838 MS |
2863 | service_retry_pid_file(s); |
2864 | ||
2865 | return 0; | |
2866 | fail: | |
66870f90 ZJS |
2867 | log_error_unit(UNIT(s)->id, |
2868 | "Failed to set a watch for %s's PID file %s: %s", | |
2869 | UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r)); | |
3a111838 MS |
2870 | service_unwatch_pid_file(s); |
2871 | return r; | |
2872 | } | |
2873 | ||
2874 | static int service_demand_pid_file(Service *s) { | |
2875 | PathSpec *ps; | |
2876 | ||
2877 | assert(s->pid_file); | |
2878 | assert(!s->pid_file_pathspec); | |
2879 | ||
2880 | ps = new0(PathSpec, 1); | |
2881 | if (!ps) | |
2882 | return -ENOMEM; | |
2883 | ||
718db961 | 2884 | ps->unit = UNIT(s); |
3a111838 MS |
2885 | ps->path = strdup(s->pid_file); |
2886 | if (!ps->path) { | |
2887 | free(ps); | |
2888 | return -ENOMEM; | |
2889 | } | |
2890 | ||
2891 | path_kill_slashes(ps->path); | |
2892 | ||
2893 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2894 | * keep their PID file open all the time. */ | |
2895 | ps->type = PATH_MODIFIED; | |
2896 | ps->inotify_fd = -1; | |
2897 | ||
2898 | s->pid_file_pathspec = ps; | |
2899 | ||
2900 | return service_watch_pid_file(s); | |
2901 | } | |
2902 | ||
718db961 | 2903 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2904 | PathSpec *p = userdata; |
2905 | Service *s; | |
2906 | ||
2907 | assert(p); | |
2908 | ||
2909 | s = SERVICE(p->unit); | |
3a111838 MS |
2910 | |
2911 | assert(s); | |
2912 | assert(fd >= 0); | |
2913 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2914 | assert(s->pid_file_pathspec); | |
57020a3a | 2915 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2916 | |
718db961 | 2917 | log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id); |
3a111838 | 2918 | |
e14c2802 | 2919 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2920 | goto fail; |
2921 | ||
2922 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2923 | return 0; |
3a111838 MS |
2924 | |
2925 | if (service_watch_pid_file(s) < 0) | |
2926 | goto fail; | |
2927 | ||
718db961 LP |
2928 | return 0; |
2929 | ||
3a111838 MS |
2930 | fail: |
2931 | service_unwatch_pid_file(s); | |
f42806df | 2932 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2933 | return 0; |
3a111838 MS |
2934 | } |
2935 | ||
87f0e418 LP |
2936 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2937 | Service *s = SERVICE(u); | |
f42806df | 2938 | ServiceResult f; |
5cb5a6ff LP |
2939 | |
2940 | assert(s); | |
034c6ed7 LP |
2941 | assert(pid >= 0); |
2942 | ||
96342de6 LN |
2943 | if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) : |
2944 | is_clean_exit_lsb(code, status, &s->success_status)) | |
f42806df LP |
2945 | f = SERVICE_SUCCESS; |
2946 | else if (code == CLD_EXITED) | |
2947 | f = SERVICE_FAILURE_EXIT_CODE; | |
2948 | else if (code == CLD_KILLED) | |
2949 | f = SERVICE_FAILURE_SIGNAL; | |
2950 | else if (code == CLD_DUMPED) | |
2951 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2952 | else |
cfc4eb4c | 2953 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2954 | |
2955 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2956 | /* Forking services may occasionally move to a new PID. |
2957 | * As long as they update the PID file before exiting the old | |
2958 | * PID, they're fine. */ | |
5375410b | 2959 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2960 | return; |
034c6ed7 | 2961 | |
034c6ed7 | 2962 | s->main_pid = 0; |
6ea832a2 | 2963 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2964 | |
867b3b7d | 2965 | if (s->main_command) { |
fbeefb45 LP |
2966 | /* If this is not a forking service than the |
2967 | * main process got started and hence we copy | |
2968 | * the exit status so that it is recorded both | |
2969 | * as main and as control process exit | |
2970 | * status */ | |
2971 | ||
867b3b7d | 2972 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2973 | |
867b3b7d | 2974 | if (s->main_command->ignore) |
f42806df | 2975 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2976 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2977 | ||
2978 | /* If this is a forked process, then we should | |
2979 | * ignore the return value if this was | |
2980 | * configured for the starter process */ | |
2981 | ||
2982 | if (s->exec_command[SERVICE_EXEC_START]->ignore) | |
2983 | f = SERVICE_SUCCESS; | |
034c6ed7 LP |
2984 | } |
2985 | ||
bbc9006e MT |
2986 | log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, |
2987 | u->id, | |
23635a85 ZJS |
2988 | "MESSAGE=%s: main process exited, code=%s, status=%i/%s", |
2989 | u->id, sigchld_code_to_string(code), status, | |
2990 | strna(code == CLD_EXITED | |
2991 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2992 | : signal_to_string(status)), | |
23635a85 ZJS |
2993 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2994 | "EXIT_STATUS=%i", status, | |
2995 | NULL); | |
f42806df LP |
2996 | |
2997 | if (f != SERVICE_SUCCESS) | |
2998 | s->result = f; | |
034c6ed7 | 2999 | |
867b3b7d LP |
3000 | if (s->main_command && |
3001 | s->main_command->command_next && | |
f42806df | 3002 | f == SERVICE_SUCCESS) { |
034c6ed7 | 3003 | |
34e9ba66 LP |
3004 | /* There is another command to * |
3005 | * execute, so let's do that. */ | |
034c6ed7 | 3006 | |
66870f90 ZJS |
3007 | log_debug_unit(u->id, |
3008 | "%s running next main command for state %s", | |
3009 | u->id, service_state_to_string(s->state)); | |
f42806df | 3010 | service_run_next_main(s); |
034c6ed7 | 3011 | |
34e9ba66 LP |
3012 | } else { |
3013 | ||
3014 | /* The service exited, so the service is officially | |
3015 | * gone. */ | |
867b3b7d | 3016 | s->main_command = NULL; |
34e9ba66 LP |
3017 | |
3018 | switch (s->state) { | |
3019 | ||
3020 | case SERVICE_START_POST: | |
3021 | case SERVICE_RELOAD: | |
3022 | case SERVICE_STOP: | |
3023 | /* Need to wait until the operation is | |
3024 | * done */ | |
c4653a4d | 3025 | break; |
7d55e835 | 3026 | |
34e9ba66 LP |
3027 | case SERVICE_START: |
3028 | if (s->type == SERVICE_ONESHOT) { | |
3029 | /* This was our main goal, so let's go on */ | |
f42806df | 3030 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
3031 | service_enter_start_post(s); |
3032 | else | |
f42806df | 3033 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
34e9ba66 | 3034 | break; |
34e9ba66 | 3035 | } |
034c6ed7 | 3036 | |
bfba3256 LP |
3037 | /* Fall through */ |
3038 | ||
34e9ba66 | 3039 | case SERVICE_RUNNING: |
f42806df | 3040 | service_enter_running(s, f); |
34e9ba66 | 3041 | break; |
034c6ed7 | 3042 | |
34e9ba66 LP |
3043 | case SERVICE_STOP_SIGTERM: |
3044 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 3045 | |
34e9ba66 | 3046 | if (!control_pid_good(s)) |
f42806df | 3047 | service_enter_stop_post(s, f); |
5cb5a6ff | 3048 | |
34e9ba66 LP |
3049 | /* If there is still a control process, wait for that first */ |
3050 | break; | |
3051 | ||
3052 | default: | |
3053 | assert_not_reached("Uh, main process died at wrong time."); | |
3054 | } | |
034c6ed7 | 3055 | } |
5cb5a6ff | 3056 | |
034c6ed7 | 3057 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
3058 | s->control_pid = 0; |
3059 | ||
b708e7ce | 3060 | if (s->control_command) { |
117dcc57 ZJS |
3061 | exec_status_exit(&s->control_command->exec_status, |
3062 | &s->exec_context, pid, code, status); | |
a16e1123 | 3063 | |
b708e7ce | 3064 | if (s->control_command->ignore) |
f42806df | 3065 | f = SERVICE_SUCCESS; |
b708e7ce LP |
3066 | } |
3067 | ||
66870f90 ZJS |
3068 | log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id, |
3069 | "%s: control process exited, code=%s status=%i", | |
3070 | u->id, sigchld_code_to_string(code), status); | |
f42806df LP |
3071 | |
3072 | if (f != SERVICE_SUCCESS) | |
3073 | s->result = f; | |
034c6ed7 | 3074 | |
88f3e0c9 LP |
3075 | /* Immediately get rid of the cgroup, so that the |
3076 | * kernel doesn't delay the cgroup empty messages for | |
3077 | * the service cgroup any longer than necessary */ | |
4ad49000 | 3078 | service_kill_control_processes(s); |
88f3e0c9 | 3079 | |
34e9ba66 LP |
3080 | if (s->control_command && |
3081 | s->control_command->command_next && | |
f42806df | 3082 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3083 | |
3084 | /* There is another command to * | |
3085 | * execute, so let's do that. */ | |
3086 | ||
66870f90 ZJS |
3087 | log_debug_unit(u->id, |
3088 | "%s running next control command for state %s", | |
3089 | u->id, service_state_to_string(s->state)); | |
f42806df | 3090 | service_run_next_control(s); |
034c6ed7 | 3091 | |
80876c20 | 3092 | } else { |
034c6ed7 LP |
3093 | /* No further commands for this step, so let's |
3094 | * figure out what to do next */ | |
3095 | ||
a16e1123 LP |
3096 | s->control_command = NULL; |
3097 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3098 | ||
66870f90 ZJS |
3099 | log_debug_unit(u->id, |
3100 | "%s got final SIGCHLD for state %s", | |
3101 | u->id, service_state_to_string(s->state)); | |
bd982a8b | 3102 | |
034c6ed7 LP |
3103 | switch (s->state) { |
3104 | ||
3105 | case SERVICE_START_PRE: | |
f42806df | 3106 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3107 | service_enter_start(s); |
3108 | else | |
f42806df | 3109 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
034c6ed7 LP |
3110 | break; |
3111 | ||
3112 | case SERVICE_START: | |
bfba3256 LP |
3113 | if (s->type != SERVICE_FORKING) |
3114 | /* Maybe spurious event due to a reload that changed the type? */ | |
3115 | break; | |
034c6ed7 | 3116 | |
f42806df LP |
3117 | if (f != SERVICE_SUCCESS) { |
3118 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3a111838 MS |
3119 | break; |
3120 | } | |
034c6ed7 | 3121 | |
3a111838 | 3122 | if (s->pid_file) { |
f42806df LP |
3123 | bool has_start_post; |
3124 | int r; | |
3125 | ||
3a111838 MS |
3126 | /* Let's try to load the pid file here if we can. |
3127 | * The PID file might actually be created by a START_POST | |
3128 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
3129 | |
3130 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
3131 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
3132 | if (!has_start_post && r < 0) { |
3133 | r = service_demand_pid_file(s); | |
3134 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 3135 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
3136 | break; |
3137 | } | |
034c6ed7 | 3138 | } else |
3a111838 | 3139 | service_search_main_pid(s); |
034c6ed7 | 3140 | |
3a111838 | 3141 | service_enter_start_post(s); |
034c6ed7 LP |
3142 | break; |
3143 | ||
3144 | case SERVICE_START_POST: | |
f42806df LP |
3145 | if (f != SERVICE_SUCCESS) { |
3146 | service_enter_stop(s, f); | |
2096e009 | 3147 | break; |
034c6ed7 LP |
3148 | } |
3149 | ||
2096e009 | 3150 | if (s->pid_file) { |
f42806df LP |
3151 | int r; |
3152 | ||
3153 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3154 | if (r < 0) { |
3155 | r = service_demand_pid_file(s); | |
3156 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 3157 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
2096e009 MS |
3158 | break; |
3159 | } | |
3160 | } else | |
3161 | service_search_main_pid(s); | |
3162 | ||
f42806df | 3163 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3164 | break; |
034c6ed7 LP |
3165 | |
3166 | case SERVICE_RELOAD: | |
f42806df | 3167 | if (f == SERVICE_SUCCESS) { |
5375410b | 3168 | service_load_pid_file(s, true); |
3185a36b LP |
3169 | service_search_main_pid(s); |
3170 | } | |
3171 | ||
f42806df LP |
3172 | s->reload_result = f; |
3173 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3174 | break; |
3175 | ||
3176 | case SERVICE_STOP: | |
f42806df | 3177 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3178 | break; |
3179 | ||
3180 | case SERVICE_STOP_SIGTERM: | |
3181 | case SERVICE_STOP_SIGKILL: | |
3182 | if (main_pid_good(s) <= 0) | |
f42806df | 3183 | service_enter_stop_post(s, f); |
034c6ed7 LP |
3184 | |
3185 | /* If there is still a service | |
3186 | * process around, wait until | |
3187 | * that one quit, too */ | |
3188 | break; | |
3189 | ||
3190 | case SERVICE_STOP_POST: | |
3191 | case SERVICE_FINAL_SIGTERM: | |
3192 | case SERVICE_FINAL_SIGKILL: | |
f42806df | 3193 | service_enter_dead(s, f, true); |
034c6ed7 LP |
3194 | break; |
3195 | ||
3196 | default: | |
3197 | assert_not_reached("Uh, control process died at wrong time."); | |
3198 | } | |
3199 | } | |
8c47c732 | 3200 | } |
c4e2ceae LP |
3201 | |
3202 | /* Notify clients about changed exit status */ | |
3203 | unit_add_to_dbus_queue(u); | |
034c6ed7 LP |
3204 | } |
3205 | ||
718db961 LP |
3206 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
3207 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
3208 | |
3209 | assert(s); | |
718db961 | 3210 | assert(source == s->timer_event_source); |
034c6ed7 LP |
3211 | |
3212 | switch (s->state) { | |
3213 | ||
3214 | case SERVICE_START_PRE: | |
3215 | case SERVICE_START: | |
718db961 LP |
3216 | log_warning_unit(UNIT(s)->id, |
3217 | "%s operation timed out. Terminating.", UNIT(s)->id); | |
f42806df | 3218 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
3219 | break; |
3220 | ||
034c6ed7 | 3221 | case SERVICE_START_POST: |
718db961 LP |
3222 | log_warning_unit(UNIT(s)->id, |
3223 | "%s operation timed out. Stopping.", UNIT(s)->id); | |
f42806df | 3224 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3225 | break; |
3226 | ||
e2f3b44c | 3227 | case SERVICE_RELOAD: |
718db961 LP |
3228 | log_warning_unit(UNIT(s)->id, |
3229 | "%s operation timed out. Stopping.", UNIT(s)->id); | |
f42806df LP |
3230 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3231 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3232 | break; |
3233 | ||
034c6ed7 | 3234 | case SERVICE_STOP: |
718db961 LP |
3235 | log_warning_unit(UNIT(s)->id, |
3236 | "%s stopping timed out. Terminating.", UNIT(s)->id); | |
f42806df | 3237 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3238 | break; |
3239 | ||
3240 | case SERVICE_STOP_SIGTERM: | |
4819ff03 | 3241 | if (s->kill_context.send_sigkill) { |
718db961 LP |
3242 | log_warning_unit(UNIT(s)->id, |
3243 | "%s stopping timed out. Killing.", UNIT(s)->id); | |
f42806df | 3244 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3245 | } else { |
718db961 LP |
3246 | log_warning_unit(UNIT(s)->id, |
3247 | "%s stopping timed out. Skipping SIGKILL.", UNIT(s)->id); | |
f42806df | 3248 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3249 | } |
3250 | ||
034c6ed7 LP |
3251 | break; |
3252 | ||
3253 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3254 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3255 | * Must be something we cannot kill, so let's just be |
3256 | * weirded out and continue */ | |
3257 | ||
718db961 LP |
3258 | log_warning_unit(UNIT(s)->id, |
3259 | "%s still around after SIGKILL. Ignoring.", UNIT(s)->id); | |
f42806df | 3260 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3261 | break; |
3262 | ||
3263 | case SERVICE_STOP_POST: | |
718db961 LP |
3264 | log_warning_unit(UNIT(s)->id, |
3265 | "%s stopping timed out (2). Terminating.", UNIT(s)->id); | |
f42806df | 3266 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3267 | break; |
3268 | ||
3269 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 3270 | if (s->kill_context.send_sigkill) { |
718db961 LP |
3271 | log_warning_unit(UNIT(s)->id, |
3272 | "%s stopping timed out (2). Killing.", UNIT(s)->id); | |
f42806df | 3273 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3274 | } else { |
718db961 | 3275 | log_warning_unit(UNIT(s)->id, |
66870f90 | 3276 | "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", |
718db961 | 3277 | UNIT(s)->id); |
f42806df | 3278 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3279 | } |
3280 | ||
034c6ed7 LP |
3281 | break; |
3282 | ||
3283 | case SERVICE_FINAL_SIGKILL: | |
718db961 LP |
3284 | log_warning_unit(UNIT(s)->id, |
3285 | "%s still around after SIGKILL (2). Entering failed mode.", UNIT(s)->id); | |
f42806df | 3286 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3287 | break; |
3288 | ||
3289 | case SERVICE_AUTO_RESTART: | |
718db961 LP |
3290 | log_info_unit(UNIT(s)->id, |
3291 | "%s holdoff time over, scheduling restart.", UNIT(s)->id); | |
034c6ed7 LP |
3292 | service_enter_restart(s); |
3293 | break; | |
3294 | ||
3295 | default: | |
3296 | assert_not_reached("Timeout at wrong time."); | |
3297 | } | |
718db961 LP |
3298 | |
3299 | return 0; | |
3300 | } | |
3301 | ||
3302 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
3303 | Service *s = SERVICE(userdata); | |
3304 | ||
3305 | assert(s); | |
3306 | assert(source == s->watchdog_event_source); | |
3307 | ||
3308 | service_handle_watchdog(s); | |
3309 | return 0; | |
5cb5a6ff LP |
3310 | } |
3311 | ||
4ad49000 | 3312 | static void service_notify_cgroup_empty_event(Unit *u) { |
8e274523 LP |
3313 | Service *s = SERVICE(u); |
3314 | ||
3315 | assert(u); | |
3316 | ||
6c12b52e | 3317 | log_debug_unit(u->id, "%s: cgroup is empty", u->id); |
8e274523 LP |
3318 | |
3319 | switch (s->state) { | |
3320 | ||
3321 | /* Waiting for SIGCHLD is usually more interesting, | |
3322 | * because it includes return codes/signals. Which is | |
3323 | * why we ignore the cgroup events for most cases, | |
3324 | * except when we don't know pid which to expect the | |
3325 | * SIGCHLD for. */ | |
3326 | ||
3a111838 MS |
3327 | case SERVICE_START: |
3328 | case SERVICE_START_POST: | |
3329 | /* If we were hoping for the daemon to write its PID file, | |
3330 | * we can give up now. */ | |
3331 | if (s->pid_file_pathspec) { | |
66870f90 ZJS |
3332 | log_warning_unit(u->id, |
3333 | "%s never wrote its PID file. Failing.", UNIT(s)->id); | |
3a111838 MS |
3334 | service_unwatch_pid_file(s); |
3335 | if (s->state == SERVICE_START) | |
f42806df | 3336 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 | 3337 | else |
f42806df | 3338 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
3339 | } |
3340 | break; | |
3341 | ||
8e274523 | 3342 | case SERVICE_RUNNING: |
f42806df LP |
3343 | /* service_enter_running() will figure out what to do */ |
3344 | service_enter_running(s, SERVICE_SUCCESS); | |
8e274523 LP |
3345 | break; |
3346 | ||
28708d8a LP |
3347 | case SERVICE_STOP_SIGTERM: |
3348 | case SERVICE_STOP_SIGKILL: | |
6dfa5494 | 3349 | |
28708d8a | 3350 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) |
f42806df | 3351 | service_enter_stop_post(s, SERVICE_SUCCESS); |
28708d8a LP |
3352 | |
3353 | break; | |
3354 | ||
7f97f0fe LP |
3355 | case SERVICE_FINAL_SIGTERM: |
3356 | case SERVICE_FINAL_SIGKILL: | |
3357 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
e201a038 | 3358 | service_enter_dead(s, SERVICE_SUCCESS, true); |
7f97f0fe LP |
3359 | |
3360 | break; | |
3361 | ||
8e274523 LP |
3362 | default: |
3363 | ; | |
3364 | } | |
3365 | } | |
3366 | ||
c952c6ec | 3367 | static void service_notify_message(Unit *u, pid_t pid, char **tags) { |
8c47c732 LP |
3368 | Service *s = SERVICE(u); |
3369 | const char *e; | |
3370 | ||
3371 | assert(u); | |
3372 | ||
c952c6ec | 3373 | if (s->notify_access == NOTIFY_NONE) { |
66870f90 ZJS |
3374 | log_warning_unit(u->id, |
3375 | "%s: Got notification message from PID %lu, but reception is disabled.", | |
3376 | u->id, (unsigned long) pid); | |
c952c6ec LP |
3377 | return; |
3378 | } | |
3379 | ||
3380 | if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { | |
66870f90 ZJS |
3381 | log_warning_unit(u->id, |
3382 | "%s: Got notification message from PID %lu, but reception only permitted for PID %lu", | |
3383 | u->id, (unsigned long) pid, (unsigned long) s->main_pid); | |
c952c6ec LP |
3384 | return; |
3385 | } | |
3386 | ||
66870f90 ZJS |
3387 | log_debug_unit(u->id, |
3388 | "%s: Got message", u->id); | |
8c47c732 LP |
3389 | |
3390 | /* Interpret MAINPID= */ | |
3391 | if ((e = strv_find_prefix(tags, "MAINPID=")) && | |
3392 | (s->state == SERVICE_START || | |
3393 | s->state == SERVICE_START_POST || | |
3394 | s->state == SERVICE_RUNNING || | |
3395 | s->state == SERVICE_RELOAD)) { | |
8c47c732 | 3396 | |
5925dd3c | 3397 | if (parse_pid(e + 8, &pid) < 0) |
66870f90 ZJS |
3398 | log_warning_unit(u->id, |
3399 | "Failed to parse notification message %s", e); | |
8c47c732 | 3400 | else { |
66870f90 ZJS |
3401 | log_debug_unit(u->id, |
3402 | "%s: got %s", u->id, e); | |
5925dd3c | 3403 | service_set_main_pid(s, pid); |
7400b9d2 | 3404 | unit_watch_pid(UNIT(s), pid); |
8c47c732 LP |
3405 | } |
3406 | } | |
3407 | ||
3408 | /* Interpret READY= */ | |
3409 | if (s->type == SERVICE_NOTIFY && | |
3410 | s->state == SERVICE_START && | |
3411 | strv_find(tags, "READY=1")) { | |
66870f90 ZJS |
3412 | log_debug_unit(u->id, |
3413 | "%s: got READY=1", u->id); | |
8c47c732 LP |
3414 | |
3415 | service_enter_start_post(s); | |
3416 | } | |
3417 | ||
3418 | /* Interpret STATUS= */ | |
7f110ff9 LP |
3419 | e = strv_find_prefix(tags, "STATUS="); |
3420 | if (e) { | |
8c47c732 LP |
3421 | char *t; |
3422 | ||
3a2776bc | 3423 | if (e[7]) { |
7f110ff9 LP |
3424 | |
3425 | if (!utf8_is_valid(e+7)) { | |
66870f90 ZJS |
3426 | log_warning_unit(u->id, |
3427 | "Status message in notification is not UTF-8 clean."); | |
7f110ff9 LP |
3428 | return; |
3429 | } | |
3430 | ||
3431 | t = strdup(e+7); | |
3432 | if (!t) { | |
66870f90 ZJS |
3433 | log_error_unit(u->id, |
3434 | "Failed to allocate string."); | |
3a2776bc LP |
3435 | return; |
3436 | } | |
3437 | ||
66870f90 ZJS |
3438 | log_debug_unit(u->id, |
3439 | "%s: got %s", u->id, e); | |
8c47c732 | 3440 | |
3a2776bc LP |
3441 | free(s->status_text); |
3442 | s->status_text = t; | |
3443 | } else { | |
3444 | free(s->status_text); | |
3445 | s->status_text = NULL; | |
3446 | } | |
8c47c732 | 3447 | |
8c47c732 | 3448 | } |
a6927d7f | 3449 | if (strv_find(tags, "WATCHDOG=1")) { |
66870f90 ZJS |
3450 | log_debug_unit(u->id, |
3451 | "%s: got WATCHDOG=1", u->id); | |
90527fbb MO |
3452 | if (dual_timestamp_is_set(&s->watchdog_timestamp)) |
3453 | service_reset_watchdog(s); | |
a6927d7f | 3454 | } |
c4e2ceae LP |
3455 | |
3456 | /* Notify clients about changed status or main pid */ | |
3457 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
3458 | } |
3459 | ||
07459bb6 | 3460 | #ifdef HAVE_SYSV_COMPAT |
de3910a3 | 3461 | |
2c4104f0 | 3462 | static int service_enumerate(Manager *m) { |
2c4104f0 LP |
3463 | char **p; |
3464 | unsigned i; | |
7fd1b19b HH |
3465 | _cleanup_closedir_ DIR *d = NULL; |
3466 | _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL; | |
b92bea5d | 3467 | Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {}; |
7fd1b19b | 3468 | _cleanup_set_free_ Set *shutdown_services = NULL; |
c68364b7 LP |
3469 | Unit *service; |
3470 | Iterator j; | |
2c4104f0 LP |
3471 | int r; |
3472 | ||
3473 | assert(m); | |
3474 | ||
67445f4e | 3475 | if (m->running_as != SYSTEMD_SYSTEM) |
b1bc08e5 LP |
3476 | return 0; |
3477 | ||
84e3543e | 3478 | STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path) |
09cd1ab1 | 3479 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) { |
2c4104f0 LP |
3480 | struct dirent *de; |
3481 | ||
3482 | free(path); | |
b7def684 | 3483 | path = strjoin(*p, "/", rcnd_table[i].path, NULL); |
70132bd0 | 3484 | if (!path) { |
2c4104f0 LP |
3485 | r = -ENOMEM; |
3486 | goto finish; | |
3487 | } | |
3488 | ||
3489 | if (d) | |
3490 | closedir(d); | |
3491 | ||
117dcc57 ZJS |
3492 | d = opendir(path); |
3493 | if (!d) { | |
2c4104f0 | 3494 | if (errno != ENOENT) |
f5f6d0e2 | 3495 | log_warning("opendir(%s) failed: %m", path); |
2c4104f0 LP |
3496 | |
3497 | continue; | |
3498 | } | |
3499 | ||
3500 | while ((de = readdir(d))) { | |
db06e3b6 | 3501 | int a, b; |
2c4104f0 LP |
3502 | |
3503 | if (ignore_file(de->d_name)) | |
3504 | continue; | |
3505 | ||
3506 | if (de->d_name[0] != 'S' && de->d_name[0] != 'K') | |
3507 | continue; | |
3508 | ||
3509 | if (strlen(de->d_name) < 4) | |
3510 | continue; | |
3511 | ||
db06e3b6 LP |
3512 | a = undecchar(de->d_name[1]); |
3513 | b = undecchar(de->d_name[2]); | |
3514 | ||
3515 | if (a < 0 || b < 0) | |
3516 | continue; | |
3517 | ||
2c4104f0 | 3518 | free(fpath); |
b7def684 | 3519 | fpath = strjoin(path, "/", de->d_name, NULL); |
8ea913b2 | 3520 | if (!fpath) { |
2c4104f0 LP |
3521 | r = -ENOMEM; |
3522 | goto finish; | |
3523 | } | |
3524 | ||
3525 | if (access(fpath, X_OK) < 0) { | |
3526 | ||
3527 | if (errno != ENOENT) | |
f5f6d0e2 | 3528 | log_warning("access() failed on %s: %m", fpath); |
2c4104f0 LP |
3529 | |
3530 | continue; | |
3531 | } | |
3532 | ||
3533 | free(name); | |
117dcc57 ZJS |
3534 | name = sysv_translate_name(de->d_name + 3); |
3535 | if (!name) { | |
3536 | r = log_oom(); | |
2c4104f0 LP |
3537 | goto finish; |
3538 | } | |
3539 | ||
66870f90 ZJS |
3540 | r = manager_load_unit_prepare(m, name, NULL, NULL, &service); |
3541 | if (r < 0) { | |
fbe9f3a9 LP |
3542 | log_warning("Failed to prepare unit %s: %s", name, strerror(-r)); |
3543 | continue; | |
3544 | } | |
2c4104f0 | 3545 | |
c68364b7 LP |
3546 | if (de->d_name[0] == 'S') { |
3547 | ||
3cdebc21 | 3548 | if (rcnd_table[i].type == RUNLEVEL_UP) { |
ea87ca5a LP |
3549 | SERVICE(service)->sysv_start_priority_from_rcnd = |
3550 | MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd); | |
db06e3b6 | 3551 | |
c68364b7 | 3552 | SERVICE(service)->sysv_enabled = true; |
f73d93a4 | 3553 | } |
db06e3b6 | 3554 | |
117dcc57 ZJS |
3555 | r = set_ensure_allocated(&runlevel_services[i], |
3556 | trivial_hash_func, trivial_compare_func); | |
3557 | if (r < 0) | |
c68364b7 | 3558 | goto finish; |
2c4104f0 | 3559 | |
117dcc57 ZJS |
3560 | r = set_put(runlevel_services[i], service); |
3561 | if (r < 0) | |
2c4104f0 | 3562 | goto finish; |
23a177ef | 3563 | |
fc5df99e | 3564 | } else if (de->d_name[0] == 'K' && |
3cdebc21 | 3565 | (rcnd_table[i].type == RUNLEVEL_DOWN)) { |
6542952f | 3566 | |
117dcc57 ZJS |
3567 | r = set_ensure_allocated(&shutdown_services, |
3568 | trivial_hash_func, trivial_compare_func); | |
3569 | if (r < 0) | |
c68364b7 LP |
3570 | goto finish; |
3571 | ||
117dcc57 ZJS |
3572 | r = set_put(shutdown_services, service); |
3573 | if (r < 0) | |
2c4104f0 LP |
3574 | goto finish; |
3575 | } | |
3576 | } | |
3577 | } | |
3578 | ||
c68364b7 LP |
3579 | /* Now we loaded all stubs and are aware of the lowest |
3580 | start-up priority for all services, not let's actually load | |
3581 | the services, this will also tell us which services are | |
3582 | actually native now */ | |
3583 | manager_dispatch_load_queue(m); | |
3584 | ||
3585 | /* If this is a native service, rely on native ways to pull in | |
3586 | * a service, don't pull it in via sysv rcN.d links. */ | |
3587 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) | |
3588 | SET_FOREACH(service, runlevel_services[i], j) { | |
3589 | service = unit_follow_merge(service); | |
3590 | ||
ac155bb8 | 3591 | if (service->fragment_path) |
c68364b7 LP |
3592 | continue; |
3593 | ||
117dcc57 ZJS |
3594 | r = unit_add_two_dependencies_by_name_inverse( |
3595 | service, UNIT_AFTER, UNIT_WANTS, | |
3596 | rcnd_table[i].target, NULL, true); | |
3597 | if (r < 0) | |
c68364b7 LP |
3598 | goto finish; |
3599 | } | |
3600 | ||
3601 | /* We honour K links only for halt/reboot. For the normal | |
3602 | * runlevels we assume the stop jobs will be implicitly added | |
35b8ca3a | 3603 | * by the core logic. Also, we don't really distinguish here |
c68364b7 | 3604 | * between the runlevels 0 and 6 and just add them to the |
3cdebc21 | 3605 | * special shutdown target. */ |
c68364b7 LP |
3606 | SET_FOREACH(service, shutdown_services, j) { |
3607 | service = unit_follow_merge(service); | |
3608 | ||
ac155bb8 | 3609 | if (service->fragment_path) |
c68364b7 LP |
3610 | continue; |
3611 | ||
117dcc57 ZJS |
3612 | r = unit_add_two_dependencies_by_name( |
3613 | service, UNIT_BEFORE, UNIT_CONFLICTS, | |
3614 | SPECIAL_SHUTDOWN_TARGET, NULL, true); | |
3615 | if (r < 0) | |
c68364b7 LP |
3616 | goto finish; |
3617 | } | |
3618 | ||
2c4104f0 LP |
3619 | r = 0; |
3620 | ||
3621 | finish: | |
fbe9f3a9 | 3622 | |
c68364b7 LP |
3623 | for (i = 0; i < ELEMENTSOF(rcnd_table); i++) |
3624 | set_free(runlevel_services[i]); | |
2c4104f0 LP |
3625 | |
3626 | return r; | |
3627 | } | |
07459bb6 | 3628 | #endif |
2c4104f0 | 3629 | |
05e343b7 LP |
3630 | static void service_bus_name_owner_change( |
3631 | Unit *u, | |
3632 | const char *name, | |
3633 | const char *old_owner, | |
3634 | const char *new_owner) { | |
3635 | ||
3636 | Service *s = SERVICE(u); | |
718db961 | 3637 | int r; |
05e343b7 LP |
3638 | |
3639 | assert(s); | |
3640 | assert(name); | |
3641 | ||
3642 | assert(streq(s->bus_name, name)); | |
3643 | assert(old_owner || new_owner); | |
3644 | ||
3645 | if (old_owner && new_owner) | |
66870f90 ZJS |
3646 | log_debug_unit(u->id, |
3647 | "%s's D-Bus name %s changed owner from %s to %s", | |
3648 | u->id, name, old_owner, new_owner); | |
05e343b7 | 3649 | else if (old_owner) |
66870f90 ZJS |
3650 | log_debug_unit(u->id, |
3651 | "%s's D-Bus name %s no longer registered by %s", | |
3652 | u->id, name, old_owner); | |
05e343b7 | 3653 | else |
66870f90 ZJS |
3654 | log_debug_unit(u->id, |
3655 | "%s's D-Bus name %s now registered by %s", | |
3656 | u->id, name, new_owner); | |
05e343b7 LP |
3657 | |
3658 | s->bus_name_good = !!new_owner; | |
3659 | ||
3660 | if (s->type == SERVICE_DBUS) { | |
3661 | ||
3662 | /* service_enter_running() will figure out what to | |
3663 | * do */ | |
3664 | if (s->state == SERVICE_RUNNING) | |
f42806df | 3665 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
3666 | else if (s->state == SERVICE_START && new_owner) |
3667 | service_enter_start_post(s); | |
3668 | ||
3669 | } else if (new_owner && | |
3670 | s->main_pid <= 0 && | |
3671 | (s->state == SERVICE_START || | |
3672 | s->state == SERVICE_START_POST || | |
3673 | s->state == SERVICE_RUNNING || | |
3674 | s->state == SERVICE_RELOAD)) { | |
3675 | ||
5b12334d | 3676 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
718db961 | 3677 | pid_t pid; |
05e343b7 | 3678 | |
718db961 | 3679 | /* Try to acquire PID from bus service */ |
05e343b7 | 3680 | |
49b832c5 | 3681 | r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
3682 | if (r >= 0) |
3683 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 LP |
3684 | if (r >= 0) { |
3685 | log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid); | |
05e343b7 | 3686 | |
718db961 LP |
3687 | service_set_main_pid(s, pid); |
3688 | unit_watch_pid(UNIT(s), pid); | |
3689 | } | |
7400b9d2 | 3690 | } |
05e343b7 LP |
3691 | } |
3692 | ||
6cf6bbc2 | 3693 | int service_set_socket_fd(Service *s, int fd, Socket *sock) { |
57020a3a | 3694 | |
4f2d528d LP |
3695 | assert(s); |
3696 | assert(fd >= 0); | |
3697 | ||
3698 | /* This is called by the socket code when instantiating a new | |
3699 | * service for a stream socket and the socket needs to be | |
3700 | * configured. */ | |
3701 | ||
1124fe6f | 3702 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
3703 | return -EINVAL; |
3704 | ||
3705 | if (s->socket_fd >= 0) | |
3706 | return -EBUSY; | |
3707 | ||
3708 | if (s->state != SERVICE_DEAD) | |
3709 | return -EAGAIN; | |
3710 | ||
3711 | s->socket_fd = fd; | |
6cf6bbc2 | 3712 | |
57020a3a LP |
3713 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
3714 | ||
3715 | return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); | |
4f2d528d LP |
3716 | } |
3717 | ||
fdf20a31 | 3718 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
3719 | Service *s = SERVICE(u); |
3720 | ||
3721 | assert(s); | |
3722 | ||
fdf20a31 | 3723 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
3724 | service_set_state(s, SERVICE_DEAD); |
3725 | ||
f42806df LP |
3726 | s->result = SERVICE_SUCCESS; |
3727 | s->reload_result = SERVICE_SUCCESS; | |
451b34cc LP |
3728 | |
3729 | RATELIMIT_RESET(s->start_limit); | |
5632e374 LP |
3730 | } |
3731 | ||
718db961 | 3732 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 3733 | Service *s = SERVICE(u); |
41efeaec | 3734 | |
814cc562 | 3735 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
3736 | } |
3737 | ||
94f04347 LP |
3738 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { |
3739 | [SERVICE_DEAD] = "dead", | |
3740 | [SERVICE_START_PRE] = "start-pre", | |
3741 | [SERVICE_START] = "start", | |
3742 | [SERVICE_START_POST] = "start-post", | |
3743 | [SERVICE_RUNNING] = "running", | |
80876c20 | 3744 | [SERVICE_EXITED] = "exited", |
94f04347 LP |
3745 | [SERVICE_RELOAD] = "reload", |
3746 | [SERVICE_STOP] = "stop", | |
3747 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
3748 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
3749 | [SERVICE_STOP_POST] = "stop-post", | |
3750 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
3751 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
fdf20a31 | 3752 | [SERVICE_FAILED] = "failed", |
94f04347 LP |
3753 | [SERVICE_AUTO_RESTART] = "auto-restart", |
3754 | }; | |
3755 | ||
3756 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
3757 | ||
3758 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { | |
525ee6f4 LP |
3759 | [SERVICE_RESTART_NO] = "no", |
3760 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 3761 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
dc99a976 | 3762 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb LP |
3763 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
3764 | [SERVICE_RESTART_ALWAYS] = "always" | |
94f04347 LP |
3765 | }; |
3766 | ||
3767 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
3768 | ||
3769 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 3770 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 3771 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 3772 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 3773 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
3774 | [SERVICE_NOTIFY] = "notify", |
3775 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
3776 | }; |
3777 | ||
3778 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
3779 | ||
e537352b | 3780 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
3781 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
3782 | [SERVICE_EXEC_START] = "ExecStart", | |
3783 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
3784 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
3785 | [SERVICE_EXEC_STOP] = "ExecStop", | |
3786 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
3787 | }; | |
3788 | ||
3789 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
3790 | ||
c952c6ec LP |
3791 | static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = { |
3792 | [NOTIFY_NONE] = "none", | |
3793 | [NOTIFY_MAIN] = "main", | |
3794 | [NOTIFY_ALL] = "all" | |
3795 | }; | |
3796 | ||
3797 | DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess); | |
3798 | ||
f42806df LP |
3799 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
3800 | [SERVICE_SUCCESS] = "success", | |
3801 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
3802 | [SERVICE_FAILURE_TIMEOUT] = "timeout", | |
3803 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
3804 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 3805 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a LP |
3806 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
3807 | [SERVICE_FAILURE_START_LIMIT] = "start-limit" | |
f42806df LP |
3808 | }; |
3809 | ||
3810 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
3811 | ||
4b939747 MO |
3812 | static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = { |
3813 | [SERVICE_START_LIMIT_NONE] = "none", | |
3814 | [SERVICE_START_LIMIT_REBOOT] = "reboot", | |
3815 | [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force", | |
3816 | [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate" | |
3817 | }; | |
3818 | DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction); | |
3819 | ||
87f0e418 | 3820 | const UnitVTable service_vtable = { |
7d17cfbc | 3821 | .object_size = sizeof(Service), |
718db961 LP |
3822 | .exec_context_offset = offsetof(Service, exec_context), |
3823 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
3824 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 3825 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
3ef63c31 | 3826 | |
f975e971 LP |
3827 | .sections = |
3828 | "Unit\0" | |
3829 | "Service\0" | |
3830 | "Install\0", | |
4ad49000 | 3831 | .private_section = "Service", |
71645aca | 3832 | |
034c6ed7 LP |
3833 | .init = service_init, |
3834 | .done = service_done, | |
a16e1123 LP |
3835 | .load = service_load, |
3836 | ||
3837 | .coldplug = service_coldplug, | |
034c6ed7 | 3838 | |
5cb5a6ff LP |
3839 | .dump = service_dump, |
3840 | ||
3841 | .start = service_start, | |
3842 | .stop = service_stop, | |
3843 | .reload = service_reload, | |
3844 | ||
034c6ed7 LP |
3845 | .can_reload = service_can_reload, |
3846 | ||
8a0867d6 LP |
3847 | .kill = service_kill, |
3848 | ||
a16e1123 LP |
3849 | .serialize = service_serialize, |
3850 | .deserialize_item = service_deserialize_item, | |
3851 | ||
5cb5a6ff | 3852 | .active_state = service_active_state, |
10a94420 | 3853 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 3854 | |
701cc384 LP |
3855 | .check_gc = service_check_gc, |
3856 | .check_snapshot = service_check_snapshot, | |
3857 | ||
034c6ed7 | 3858 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 3859 | |
fdf20a31 | 3860 | .reset_failed = service_reset_failed, |
5632e374 | 3861 | |
4ad49000 | 3862 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 3863 | .notify_message = service_notify_message, |
8e274523 | 3864 | |
05e343b7 | 3865 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 3866 | |
c4e2ceae | 3867 | .bus_interface = "org.freedesktop.systemd1.Service", |
718db961 LP |
3868 | .bus_vtable = bus_service_vtable, |
3869 | .bus_changing_properties = bus_service_changing_properties, | |
74c964d3 LP |
3870 | .bus_set_property = bus_service_set_property, |
3871 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 3872 | |
07459bb6 | 3873 | #ifdef HAVE_SYSV_COMPAT |
c6918296 | 3874 | .enumerate = service_enumerate, |
07459bb6 | 3875 | #endif |
718db961 LP |
3876 | |
3877 | .can_transient = true, | |
3878 | ||
c6918296 MS |
3879 | .status_message_formats = { |
3880 | .starting_stopping = { | |
3881 | [0] = "Starting %s...", | |
3882 | [1] = "Stopping %s...", | |
3883 | }, | |
3884 | .finished_start_job = { | |
3885 | [JOB_DONE] = "Started %s.", | |
3886 | [JOB_FAILED] = "Failed to start %s.", | |
3887 | [JOB_DEPENDENCY] = "Dependency failed for %s.", | |
3888 | [JOB_TIMEOUT] = "Timed out starting %s.", | |
3889 | }, | |
3890 | .finished_stop_job = { | |
3891 | [JOB_DONE] = "Stopped %s.", | |
3892 | [JOB_FAILED] = "Stopped (with error) %s.", | |
3893 | [JOB_TIMEOUT] = "Timed out stopping %s.", | |
3894 | }, | |
3895 | }, | |
5cb5a6ff | 3896 | }; |