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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 | ||
842129f5 LP |
126 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
127 | ||
a16e1123 LP |
128 | static void service_init(Unit *u) { |
129 | Service *s = SERVICE(u); | |
130 | ||
131 | assert(u); | |
ac155bb8 | 132 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 133 | |
1f19a534 OS |
134 | s->timeout_start_usec = u->manager->default_timeout_start_usec; |
135 | s->timeout_stop_usec = u->manager->default_timeout_stop_usec; | |
136 | s->restart_usec = u->manager->default_restart_usec; | |
0b86feac | 137 | s->type = _SERVICE_TYPE_INVALID; |
bb242b7b | 138 | |
07459bb6 | 139 | #ifdef HAVE_SYSV_COMPAT |
a16e1123 | 140 | s->sysv_start_priority = -1; |
ea87ca5a | 141 | s->sysv_start_priority_from_rcnd = -1; |
07459bb6 | 142 | #endif |
a16e1123 | 143 | s->socket_fd = -1; |
3185a36b | 144 | s->guess_main_pid = true; |
a16e1123 LP |
145 | |
146 | exec_context_init(&s->exec_context); | |
4819ff03 | 147 | kill_context_init(&s->kill_context); |
4ad49000 | 148 | cgroup_context_init(&s->cgroup_context); |
a16e1123 | 149 | |
3f41e1e5 LN |
150 | RATELIMIT_INIT(s->start_limit, |
151 | u->manager->default_start_limit_interval, | |
152 | u->manager->default_start_limit_burst); | |
a16e1123 LP |
153 | |
154 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
155 | } | |
156 | ||
5e94833f LP |
157 | static void service_unwatch_control_pid(Service *s) { |
158 | assert(s); | |
159 | ||
160 | if (s->control_pid <= 0) | |
161 | return; | |
162 | ||
163 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
164 | s->control_pid = 0; | |
165 | } | |
166 | ||
167 | static void service_unwatch_main_pid(Service *s) { | |
168 | assert(s); | |
169 | ||
170 | if (s->main_pid <= 0) | |
171 | return; | |
172 | ||
173 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
174 | s->main_pid = 0; | |
175 | } | |
176 | ||
3e52541e MS |
177 | static void service_unwatch_pid_file(Service *s) { |
178 | if (!s->pid_file_pathspec) | |
179 | return; | |
180 | ||
66870f90 ZJS |
181 | log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s", |
182 | UNIT(s)->id, s->pid_file_pathspec->path); | |
718db961 | 183 | path_spec_unwatch(s->pid_file_pathspec); |
3e52541e MS |
184 | path_spec_done(s->pid_file_pathspec); |
185 | free(s->pid_file_pathspec); | |
186 | s->pid_file_pathspec = NULL; | |
187 | } | |
188 | ||
5925dd3c | 189 | static int service_set_main_pid(Service *s, pid_t pid) { |
e55224ca LP |
190 | pid_t ppid; |
191 | ||
5925dd3c LP |
192 | assert(s); |
193 | ||
194 | if (pid <= 1) | |
195 | return -EINVAL; | |
196 | ||
197 | if (pid == getpid()) | |
198 | return -EINVAL; | |
199 | ||
7400b9d2 LP |
200 | if (s->main_pid == pid && s->main_pid_known) |
201 | return 0; | |
202 | ||
203 | if (s->main_pid != pid) { | |
204 | service_unwatch_main_pid(s); | |
205 | exec_status_start(&s->main_exec_status, pid); | |
206 | } | |
41efeaec | 207 | |
6dfa5494 LP |
208 | s->main_pid = pid; |
209 | s->main_pid_known = true; | |
210 | ||
211 | if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) { | |
66870f90 | 212 | log_warning_unit(UNIT(s)->id, |
ccd06097 ZJS |
213 | "%s: Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.", |
214 | UNIT(s)->id, pid); | |
e55224ca | 215 | |
6dfa5494 LP |
216 | s->main_pid_alien = true; |
217 | } else | |
218 | s->main_pid_alien = false; | |
5925dd3c LP |
219 | |
220 | return 0; | |
221 | } | |
222 | ||
4f2d528d LP |
223 | static void service_close_socket_fd(Service *s) { |
224 | assert(s); | |
225 | ||
226 | if (s->socket_fd < 0) | |
227 | return; | |
228 | ||
229 | close_nointr_nofail(s->socket_fd); | |
230 | s->socket_fd = -1; | |
231 | } | |
232 | ||
6cf6bbc2 LP |
233 | static void service_connection_unref(Service *s) { |
234 | assert(s); | |
235 | ||
9444b1f2 | 236 | if (!UNIT_ISSET(s->accept_socket)) |
6cf6bbc2 LP |
237 | return; |
238 | ||
57020a3a LP |
239 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); |
240 | unit_ref_unset(&s->accept_socket); | |
6cf6bbc2 LP |
241 | } |
242 | ||
a6927d7f MO |
243 | static void service_stop_watchdog(Service *s) { |
244 | assert(s); | |
245 | ||
718db961 | 246 | s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); |
842129f5 | 247 | s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; |
a6927d7f MO |
248 | } |
249 | ||
842129f5 | 250 | static void service_start_watchdog(Service *s) { |
bb242b7b MO |
251 | int r; |
252 | ||
253 | assert(s); | |
254 | ||
842129f5 | 255 | if (s->watchdog_usec <= 0) |
bb242b7b MO |
256 | return; |
257 | ||
718db961 LP |
258 | if (s->watchdog_event_source) { |
259 | r = sd_event_source_set_time(s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec); | |
260 | if (r < 0) { | |
261 | log_warning_unit(UNIT(s)->id, "%s failed to reset watchdog timer: %s", UNIT(s)->id, strerror(-r)); | |
262 | return; | |
263 | } | |
264 | ||
842129f5 | 265 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); |
c4ef3317 | 266 | } else { |
718db961 | 267 | 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); |
c4ef3317 LP |
268 | if (r < 0) { |
269 | log_warning_unit(UNIT(s)->id, "%s failed to add watchdog timer: %s", UNIT(s)->id, strerror(-r)); | |
270 | return; | |
271 | } | |
272 | ||
273 | /* Let's process everything else which might be a sign | |
274 | * of living before we consider a service died. */ | |
275 | r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); | |
276 | } | |
718db961 | 277 | |
bb242b7b | 278 | if (r < 0) |
842129f5 | 279 | log_warning_unit(UNIT(s)->id, "%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r)); |
bb242b7b MO |
280 | } |
281 | ||
a6927d7f MO |
282 | static void service_reset_watchdog(Service *s) { |
283 | assert(s); | |
284 | ||
285 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 286 | service_start_watchdog(s); |
a6927d7f MO |
287 | } |
288 | ||
87f0e418 LP |
289 | static void service_done(Unit *u) { |
290 | Service *s = SERVICE(u); | |
44d8db9e LP |
291 | |
292 | assert(s); | |
293 | ||
294 | free(s->pid_file); | |
295 | s->pid_file = NULL; | |
296 | ||
07459bb6 | 297 | #ifdef HAVE_SYSV_COMPAT |
8309400a LP |
298 | free(s->sysv_runlevels); |
299 | s->sysv_runlevels = NULL; | |
07459bb6 | 300 | #endif |
8309400a | 301 | |
8c47c732 LP |
302 | free(s->status_text); |
303 | s->status_text = NULL; | |
304 | ||
4ad49000 | 305 | cgroup_context_done(&s->cgroup_context); |
613b411c LP |
306 | exec_context_done(&s->exec_context); |
307 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
e537352b | 308 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 309 | s->control_command = NULL; |
867b3b7d | 310 | s->main_command = NULL; |
44d8db9e | 311 | |
96342de6 LN |
312 | set_free(s->restart_ignore_status.code); |
313 | s->restart_ignore_status.code = NULL; | |
314 | set_free(s->restart_ignore_status.signal); | |
315 | s->restart_ignore_status.signal = NULL; | |
316 | ||
317 | set_free(s->success_status.code); | |
318 | s->success_status.code = NULL; | |
319 | set_free(s->success_status.signal); | |
320 | s->success_status.signal = NULL; | |
321 | ||
44d8db9e LP |
322 | /* This will leak a process, but at least no memory or any of |
323 | * our resources */ | |
5e94833f LP |
324 | service_unwatch_main_pid(s); |
325 | service_unwatch_control_pid(s); | |
3e52541e | 326 | service_unwatch_pid_file(s); |
44d8db9e | 327 | |
05e343b7 | 328 | if (s->bus_name) { |
ac155bb8 | 329 | unit_unwatch_bus_name(u, s->bus_name); |
05e343b7 LP |
330 | free(s->bus_name); |
331 | s->bus_name = NULL; | |
332 | } | |
333 | ||
4f2d528d | 334 | service_close_socket_fd(s); |
6cf6bbc2 | 335 | service_connection_unref(s); |
4f2d528d | 336 | |
57020a3a | 337 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 338 | |
bb242b7b MO |
339 | service_stop_watchdog(s); |
340 | ||
718db961 LP |
341 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
342 | } | |
343 | ||
344 | static int service_arm_timer(Service *s, usec_t usec) { | |
345 | int r; | |
346 | ||
347 | assert(s); | |
348 | ||
718db961 LP |
349 | if (s->timer_event_source) { |
350 | r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec); | |
351 | if (r < 0) | |
352 | return r; | |
353 | ||
354 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
355 | } | |
356 | ||
357 | return sd_event_add_monotonic(UNIT(s)->manager->event, now(CLOCK_MONOTONIC) + usec, 0, service_dispatch_timer, s, &s->timer_event_source); | |
44d8db9e LP |
358 | } |
359 | ||
07459bb6 | 360 | #ifdef HAVE_SYSV_COMPAT |
b7ccee3c LP |
361 | static char *sysv_translate_name(const char *name) { |
362 | char *r; | |
363 | ||
5d4caf56 LP |
364 | r = new(char, strlen(name) + sizeof(".service")); |
365 | if (!r) | |
b7ccee3c LP |
366 | return NULL; |
367 | ||
5b819198 | 368 | if (endswith(name, ".sh")) |
85a3fa0e | 369 | /* Drop .sh suffix */ |
5b819198 | 370 | strcpy(stpcpy(r, name) - 3, ".service"); |
b7ccee3c | 371 | else |
85a3fa0e | 372 | /* Normal init script name */ |
b7ccee3c LP |
373 | strcpy(stpcpy(r, name), ".service"); |
374 | ||
375 | return r; | |
376 | } | |
377 | ||
ee95669f | 378 | static int sysv_translate_facility(const char *name, const char *filename, char **_r) { |
2c4104f0 | 379 | |
a7d3cc26 LP |
380 | /* We silently ignore the $ prefix here. According to the LSB |
381 | * spec it simply indicates whether something is a | |
382 | * standardized name or a distribution-specific one. Since we | |
383 | * just follow what already exists and do not introduce new | |
384 | * uses or names we don't care who introduced a new name. */ | |
385 | ||
2c4104f0 | 386 | static const char * const table[] = { |
6464aa08 | 387 | /* LSB defined facilities */ |
5d4caf56 | 388 | "local_fs", NULL, |
a7d3cc26 LP |
389 | "network", SPECIAL_NETWORK_TARGET, |
390 | "named", SPECIAL_NSS_LOOKUP_TARGET, | |
391 | "portmap", SPECIAL_RPCBIND_TARGET, | |
392 | "remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
5d4caf56 | 393 | "syslog", NULL, |
4466194c | 394 | "time", SPECIAL_TIME_SYNC_TARGET, |
2c4104f0 LP |
395 | }; |
396 | ||
397 | unsigned i; | |
398 | char *r; | |
ee95669f | 399 | const char *n; |
2c4104f0 | 400 | |
ee95669f LP |
401 | assert(name); |
402 | assert(_r); | |
a7d3cc26 | 403 | |
ee95669f | 404 | n = *name == '$' ? name + 1 : name; |
a7d3cc26 | 405 | |
ee95669f | 406 | for (i = 0; i < ELEMENTSOF(table); i += 2) { |
a7d3cc26 | 407 | |
ee95669f LP |
408 | if (!streq(table[i], n)) |
409 | continue; | |
2c4104f0 | 410 | |
ee95669f LP |
411 | if (!table[i+1]) |
412 | return 0; | |
413 | ||
5d4caf56 LP |
414 | r = strdup(table[i+1]); |
415 | if (!r) | |
416 | return log_oom(); | |
ee95669f LP |
417 | |
418 | goto finish; | |
419 | } | |
2c4104f0 | 420 | |
a7d3cc26 | 421 | /* If we don't know this name, fallback heuristics to figure |
0003d1ab | 422 | * out whether something is a target or a service alias. */ |
a7d3cc26 | 423 | |
e83c7c0b LP |
424 | if (*name == '$') { |
425 | if (!unit_prefix_is_valid(n)) | |
426 | return -EINVAL; | |
427 | ||
ee95669f LP |
428 | /* Facilities starting with $ are most likely targets */ |
429 | r = unit_name_build(n, NULL, ".target"); | |
e83c7c0b | 430 | } else if (filename && streq(name, filename)) |
35b8ca3a | 431 | /* Names equaling the file name of the services are redundant */ |
ee95669f | 432 | return 0; |
32159d3a | 433 | else |
ee95669f LP |
434 | /* Everything else we assume to be normal service names */ |
435 | r = sysv_translate_name(n); | |
2c4104f0 | 436 | |
32159d3a | 437 | if (!r) |
2c4104f0 LP |
438 | return -ENOMEM; |
439 | ||
440 | finish: | |
b4353094 | 441 | *_r = r; |
2c4104f0 LP |
442 | |
443 | return 1; | |
444 | } | |
445 | ||
56d748b4 | 446 | static int sysv_fix_order(Service *s) { |
ac155bb8 | 447 | Unit *other; |
2c4104f0 LP |
448 | int r; |
449 | ||
450 | assert(s); | |
451 | ||
452 | if (s->sysv_start_priority < 0) | |
453 | return 0; | |
454 | ||
23a177ef LP |
455 | /* For each pair of services where at least one lacks a LSB |
456 | * header, we use the start priority value to order things. */ | |
2c4104f0 | 457 | |
1124fe6f | 458 | LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) { |
2c4104f0 LP |
459 | Service *t; |
460 | UnitDependency d; | |
eeaafddc | 461 | bool special_s, special_t; |
2c4104f0 | 462 | |
595ed347 | 463 | t = SERVICE(other); |
2c4104f0 LP |
464 | |
465 | if (s == t) | |
466 | continue; | |
9f151f29 | 467 | |
1124fe6f | 468 | if (UNIT(t)->load_state != UNIT_LOADED) |
9f151f29 | 469 | continue; |
2c4104f0 LP |
470 | |
471 | if (t->sysv_start_priority < 0) | |
472 | continue; | |
473 | ||
51a1a79d LP |
474 | /* If both units have modern headers we don't care |
475 | * about the priorities */ | |
1124fe6f MS |
476 | if ((UNIT(s)->fragment_path || s->sysv_has_lsb) && |
477 | (UNIT(t)->fragment_path || t->sysv_has_lsb)) | |
23a177ef LP |
478 | continue; |
479 | ||
eeaafddc LP |
480 | special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels); |
481 | special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels); | |
482 | ||
483 | if (special_t && !special_s) | |
484 | d = UNIT_AFTER; | |
485 | else if (special_s && !special_t) | |
486 | d = UNIT_BEFORE; | |
487 | else if (t->sysv_start_priority < s->sysv_start_priority) | |
2c4104f0 LP |
488 | d = UNIT_AFTER; |
489 | else if (t->sysv_start_priority > s->sysv_start_priority) | |
490 | d = UNIT_BEFORE; | |
491 | else | |
492 | continue; | |
493 | ||
494 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
495 | ||
da19d5c1 | 496 | if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) |
2c4104f0 LP |
497 | return r; |
498 | } | |
499 | ||
500 | return 0; | |
501 | } | |
502 | ||
503 | static ExecCommand *exec_command_new(const char *path, const char *arg1) { | |
504 | ExecCommand *c; | |
505 | ||
506 | if (!(c = new0(ExecCommand, 1))) | |
507 | return NULL; | |
508 | ||
509 | if (!(c->path = strdup(path))) { | |
510 | free(c); | |
511 | return NULL; | |
512 | } | |
513 | ||
514 | if (!(c->argv = strv_new(path, arg1, NULL))) { | |
515 | free(c->path); | |
516 | free(c); | |
517 | return NULL; | |
518 | } | |
519 | ||
520 | return c; | |
521 | } | |
522 | ||
37e2941d | 523 | static int sysv_exec_commands(Service *s, const bool supports_reload) { |
2c4104f0 LP |
524 | ExecCommand *c; |
525 | ||
526 | assert(s); | |
1b64d026 LP |
527 | assert(s->is_sysv); |
528 | assert(UNIT(s)->source_path); | |
2c4104f0 | 529 | |
1b64d026 LP |
530 | c = exec_command_new(UNIT(s)->source_path, "start"); |
531 | if (!c) | |
2c4104f0 LP |
532 | return -ENOMEM; |
533 | exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c); | |
534 | ||
1b64d026 LP |
535 | c = exec_command_new(UNIT(s)->source_path, "stop"); |
536 | if (!c) | |
2c4104f0 LP |
537 | return -ENOMEM; |
538 | exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c); | |
539 | ||
37e2941d MS |
540 | if (supports_reload) { |
541 | c = exec_command_new(UNIT(s)->source_path, "reload"); | |
542 | if (!c) | |
543 | return -ENOMEM; | |
544 | exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c); | |
545 | } | |
2c4104f0 LP |
546 | |
547 | return 0; | |
548 | } | |
549 | ||
37e2941d MS |
550 | static bool usage_contains_reload(const char *line) { |
551 | return (strcasestr(line, "{reload|") || | |
552 | strcasestr(line, "{reload}") || | |
553 | strcasestr(line, "{reload\"") || | |
554 | strcasestr(line, "|reload|") || | |
555 | strcasestr(line, "|reload}") || | |
556 | strcasestr(line, "|reload\"")); | |
557 | } | |
558 | ||
e537352b | 559 | static int service_load_sysv_path(Service *s, const char *path) { |
2c4104f0 LP |
560 | FILE *f; |
561 | Unit *u; | |
562 | unsigned line = 0; | |
563 | int r; | |
564 | enum { | |
565 | NORMAL, | |
566 | DESCRIPTION, | |
567 | LSB, | |
37e2941d MS |
568 | LSB_DESCRIPTION, |
569 | USAGE_CONTINUATION | |
2c4104f0 | 570 | } state = NORMAL; |
0b5d26f9 | 571 | char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description; |
5f4b19f4 | 572 | struct stat st; |
37e2941d | 573 | bool supports_reload = false; |
23a177ef LP |
574 | |
575 | assert(s); | |
576 | assert(path); | |
2c4104f0 LP |
577 | |
578 | u = UNIT(s); | |
579 | ||
1b64d026 LP |
580 | f = fopen(path, "re"); |
581 | if (!f) { | |
2c4104f0 LP |
582 | r = errno == ENOENT ? 0 : -errno; |
583 | goto finish; | |
584 | } | |
585 | ||
5f4b19f4 LP |
586 | if (fstat(fileno(f), &st) < 0) { |
587 | r = -errno; | |
588 | goto finish; | |
589 | } | |
590 | ||
1b64d026 LP |
591 | free(u->source_path); |
592 | u->source_path = strdup(path); | |
593 | if (!u->source_path) { | |
2c4104f0 LP |
594 | r = -ENOMEM; |
595 | goto finish; | |
596 | } | |
1b64d026 | 597 | u->source_mtime = timespec_load(&st.st_mtim); |
5f4b19f4 LP |
598 | |
599 | if (null_or_empty(&st)) { | |
ac155bb8 | 600 | u->load_state = UNIT_MASKED; |
5f4b19f4 LP |
601 | r = 0; |
602 | goto finish; | |
603 | } | |
604 | ||
1b64d026 LP |
605 | s->is_sysv = true; |
606 | ||
2c4104f0 LP |
607 | while (!feof(f)) { |
608 | char l[LINE_MAX], *t; | |
609 | ||
610 | if (!fgets(l, sizeof(l), f)) { | |
611 | if (feof(f)) | |
612 | break; | |
613 | ||
614 | r = -errno; | |
66870f90 ZJS |
615 | log_error_unit(u->id, |
616 | "Failed to read configuration file '%s': %s", | |
617 | path, strerror(-r)); | |
2c4104f0 LP |
618 | goto finish; |
619 | } | |
620 | ||
621 | line++; | |
622 | ||
623 | t = strstrip(l); | |
37e2941d MS |
624 | if (*t != '#') { |
625 | /* Try to figure out whether this init script supports | |
626 | * the reload operation. This heuristic looks for | |
627 | * "Usage" lines which include the reload option. */ | |
628 | if ( state == USAGE_CONTINUATION || | |
629 | (state == NORMAL && strcasestr(t, "usage"))) { | |
630 | if (usage_contains_reload(t)) { | |
631 | supports_reload = true; | |
632 | state = NORMAL; | |
633 | } else if (t[strlen(t)-1] == '\\') | |
634 | state = USAGE_CONTINUATION; | |
635 | else | |
636 | state = NORMAL; | |
637 | } | |
638 | ||
2c4104f0 | 639 | continue; |
37e2941d | 640 | } |
2c4104f0 LP |
641 | |
642 | if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { | |
643 | state = LSB; | |
23a177ef | 644 | s->sysv_has_lsb = true; |
2c4104f0 LP |
645 | continue; |
646 | } | |
647 | ||
648 | if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) { | |
649 | state = NORMAL; | |
650 | continue; | |
651 | } | |
652 | ||
653 | t++; | |
654 | t += strspn(t, WHITESPACE); | |
655 | ||
656 | if (state == NORMAL) { | |
657 | ||
658 | /* Try to parse Red Hat style chkconfig headers */ | |
659 | ||
c2b35af6 | 660 | if (startswith_no_case(t, "chkconfig:")) { |
2c4104f0 | 661 | int start_priority; |
8309400a | 662 | char runlevels[16], *k; |
2c4104f0 LP |
663 | |
664 | state = NORMAL; | |
665 | ||
8309400a LP |
666 | if (sscanf(t+10, "%15s %i %*i", |
667 | runlevels, | |
668 | &start_priority) != 2) { | |
2c4104f0 | 669 | |
66870f90 ZJS |
670 | log_warning_unit(u->id, |
671 | "[%s:%u] Failed to parse chkconfig line. Ignoring.", | |
672 | path, line); | |
2c4104f0 LP |
673 | continue; |
674 | } | |
675 | ||
fbe9f3a9 LP |
676 | /* A start priority gathered from the |
677 | * symlink farms is preferred over the | |
678 | * data from the LSB header. */ | |
8309400a | 679 | if (start_priority < 0 || start_priority > 99) |
66870f90 ZJS |
680 | log_warning_unit(u->id, |
681 | "[%s:%u] Start priority out of range. Ignoring.", | |
682 | path, line); | |
ea87ca5a | 683 | else |
8309400a LP |
684 | s->sysv_start_priority = start_priority; |
685 | ||
686 | char_array_0(runlevels); | |
687 | k = delete_chars(runlevels, WHITESPACE "-"); | |
688 | ||
689 | if (k[0]) { | |
690 | char *d; | |
691 | ||
692 | if (!(d = strdup(k))) { | |
693 | r = -ENOMEM; | |
694 | goto finish; | |
695 | } | |
696 | ||
697 | free(s->sysv_runlevels); | |
698 | s->sysv_runlevels = d; | |
2c4104f0 LP |
699 | } |
700 | ||
0b5d26f9 | 701 | } else if (startswith_no_case(t, "description:")) { |
2c4104f0 LP |
702 | |
703 | size_t k = strlen(t); | |
704 | char *d; | |
0b5d26f9 | 705 | const char *j; |
2c4104f0 LP |
706 | |
707 | if (t[k-1] == '\\') { | |
708 | state = DESCRIPTION; | |
709 | t[k-1] = 0; | |
710 | } | |
711 | ||
0b5d26f9 LP |
712 | if ((j = strstrip(t+12)) && *j) { |
713 | if (!(d = strdup(j))) { | |
714 | r = -ENOMEM; | |
715 | goto finish; | |
716 | } | |
717 | } else | |
718 | d = NULL; | |
2c4104f0 | 719 | |
0b5d26f9 LP |
720 | free(chkconfig_description); |
721 | chkconfig_description = d; | |
2c4104f0 | 722 | |
c2b35af6 | 723 | } else if (startswith_no_case(t, "pidfile:")) { |
2c4104f0 LP |
724 | |
725 | char *fn; | |
726 | ||
727 | state = NORMAL; | |
728 | ||
729 | fn = strstrip(t+8); | |
730 | if (!path_is_absolute(fn)) { | |
66870f90 ZJS |
731 | log_warning_unit(u->id, |
732 | "[%s:%u] PID file not absolute. Ignoring.", | |
733 | path, line); | |
2c4104f0 LP |
734 | continue; |
735 | } | |
736 | ||
737 | if (!(fn = strdup(fn))) { | |
738 | r = -ENOMEM; | |
739 | goto finish; | |
740 | } | |
741 | ||
742 | free(s->pid_file); | |
743 | s->pid_file = fn; | |
744 | } | |
745 | ||
746 | } else if (state == DESCRIPTION) { | |
747 | ||
748 | /* Try to parse Red Hat style description | |
749 | * continuation */ | |
750 | ||
751 | size_t k = strlen(t); | |
0b5d26f9 | 752 | char *j; |
2c4104f0 LP |
753 | |
754 | if (t[k-1] == '\\') | |
755 | t[k-1] = 0; | |
756 | else | |
757 | state = NORMAL; | |
758 | ||
0b5d26f9 LP |
759 | if ((j = strstrip(t)) && *j) { |
760 | char *d = NULL; | |
761 | ||
762 | if (chkconfig_description) | |
b7def684 | 763 | d = strjoin(chkconfig_description, " ", j, NULL); |
0b5d26f9 LP |
764 | else |
765 | d = strdup(j); | |
2c4104f0 | 766 | |
0b5d26f9 LP |
767 | if (!d) { |
768 | r = -ENOMEM; | |
769 | goto finish; | |
770 | } | |
771 | ||
772 | free(chkconfig_description); | |
773 | chkconfig_description = d; | |
774 | } | |
2c4104f0 LP |
775 | |
776 | } else if (state == LSB || state == LSB_DESCRIPTION) { | |
777 | ||
c2b35af6 | 778 | if (startswith_no_case(t, "Provides:")) { |
2c4104f0 LP |
779 | char *i, *w; |
780 | size_t z; | |
781 | ||
782 | state = LSB; | |
783 | ||
f60f22df | 784 | FOREACH_WORD_QUOTED(w, z, t+9, i) { |
2c4104f0 LP |
785 | char *n, *m; |
786 | ||
787 | if (!(n = strndup(w, z))) { | |
788 | r = -ENOMEM; | |
789 | goto finish; | |
790 | } | |
791 | ||
2b6bf07d | 792 | r = sysv_translate_facility(n, basename(path), &m); |
2c4104f0 LP |
793 | free(n); |
794 | ||
795 | if (r < 0) | |
796 | goto finish; | |
797 | ||
798 | if (r == 0) | |
799 | continue; | |
800 | ||
bd77d0fc | 801 | if (unit_name_to_type(m) == UNIT_SERVICE) |
ce2c2265 | 802 | r = unit_merge_by_name(u, m); |
9700edb4 LP |
803 | else |
804 | /* NB: SysV targets | |
805 | * which are provided | |
806 | * by a service are | |
807 | * pulled in by the | |
808 | * services, as an | |
809 | * indication that the | |
810 | * generic service is | |
811 | * now available. This | |
812 | * is strictly | |
813 | * one-way. The | |
814 | * targets do NOT pull | |
815 | * in the SysV | |
816 | * services! */ | |
817 | r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true); | |
bd77d0fc | 818 | |
2c4104f0 | 819 | if (r < 0) |
66870f90 ZJS |
820 | log_error_unit(u->id, |
821 | "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", | |
822 | path, line, m, strerror(-r)); | |
42a097a2 LP |
823 | |
824 | free(m); | |
2c4104f0 LP |
825 | } |
826 | ||
c2b35af6 LP |
827 | } else if (startswith_no_case(t, "Required-Start:") || |
828 | startswith_no_case(t, "Should-Start:") || | |
829 | startswith_no_case(t, "X-Start-Before:") || | |
830 | startswith_no_case(t, "X-Start-After:")) { | |
2c4104f0 LP |
831 | char *i, *w; |
832 | size_t z; | |
833 | ||
834 | state = LSB; | |
835 | ||
f60f22df | 836 | FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) { |
2c4104f0 LP |
837 | char *n, *m; |
838 | ||
839 | if (!(n = strndup(w, z))) { | |
840 | r = -ENOMEM; | |
841 | goto finish; | |
842 | } | |
843 | ||
2b6bf07d | 844 | r = sysv_translate_facility(n, basename(path), &m); |
e83c7c0b | 845 | if (r < 0) { |
66870f90 ZJS |
846 | log_error_unit(u->id, |
847 | "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", | |
848 | path, line, n, strerror(-r)); | |
e83c7c0b LP |
849 | free(n); |
850 | continue; | |
851 | } | |
852 | ||
853 | free(n); | |
2c4104f0 LP |
854 | |
855 | if (r == 0) | |
856 | continue; | |
857 | ||
c2b35af6 | 858 | r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true); |
2c4104f0 LP |
859 | |
860 | if (r < 0) | |
66870f90 ZJS |
861 | log_error_unit(u->id, "[%s:%u] Failed to add dependency on %s, ignoring: %s", |
862 | path, line, m, strerror(-r)); | |
42a097a2 LP |
863 | |
864 | free(m); | |
2c4104f0 | 865 | } |
c2b35af6 | 866 | } else if (startswith_no_case(t, "Default-Start:")) { |
8309400a LP |
867 | char *k, *d; |
868 | ||
869 | state = LSB; | |
870 | ||
871 | k = delete_chars(t+14, WHITESPACE "-"); | |
872 | ||
873 | if (k[0] != 0) { | |
874 | if (!(d = strdup(k))) { | |
875 | r = -ENOMEM; | |
876 | goto finish; | |
877 | } | |
878 | ||
879 | free(s->sysv_runlevels); | |
880 | s->sysv_runlevels = d; | |
881 | } | |
2c4104f0 | 882 | |
0b5d26f9 LP |
883 | } else if (startswith_no_case(t, "Description:")) { |
884 | char *d, *j; | |
ed4c1cc6 | 885 | |
2c4104f0 LP |
886 | state = LSB_DESCRIPTION; |
887 | ||
0b5d26f9 LP |
888 | if ((j = strstrip(t+12)) && *j) { |
889 | if (!(d = strdup(j))) { | |
890 | r = -ENOMEM; | |
891 | goto finish; | |
892 | } | |
893 | } else | |
894 | d = NULL; | |
2c4104f0 | 895 | |
0b5d26f9 LP |
896 | free(long_description); |
897 | long_description = d; | |
2c4104f0 | 898 | |
ed4c1cc6 | 899 | } else if (startswith_no_case(t, "Short-Description:")) { |
0b5d26f9 | 900 | char *d, *j; |
2c4104f0 | 901 | |
2c4104f0 LP |
902 | state = LSB; |
903 | ||
0b5d26f9 LP |
904 | if ((j = strstrip(t+18)) && *j) { |
905 | if (!(d = strdup(j))) { | |
906 | r = -ENOMEM; | |
907 | goto finish; | |
908 | } | |
909 | } else | |
910 | d = NULL; | |
2c4104f0 | 911 | |
0b5d26f9 LP |
912 | free(short_description); |
913 | short_description = d; | |
2c4104f0 LP |
914 | |
915 | } else if (state == LSB_DESCRIPTION) { | |
916 | ||
917 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
0b5d26f9 | 918 | char *j; |
2c4104f0 | 919 | |
0b5d26f9 LP |
920 | if ((j = strstrip(t)) && *j) { |
921 | char *d = NULL; | |
922 | ||
923 | if (long_description) | |
b7def684 | 924 | d = strjoin(long_description, " ", t, NULL); |
0b5d26f9 LP |
925 | else |
926 | d = strdup(j); | |
927 | ||
928 | if (!d) { | |
929 | r = -ENOMEM; | |
930 | goto finish; | |
931 | } | |
932 | ||
933 | free(long_description); | |
934 | long_description = d; | |
2c4104f0 LP |
935 | } |
936 | ||
2c4104f0 LP |
937 | } else |
938 | state = LSB; | |
939 | } | |
940 | } | |
941 | } | |
942 | ||
37e2941d | 943 | if ((r = sysv_exec_commands(s, supports_reload)) < 0) |
2c4104f0 LP |
944 | goto finish; |
945 | ||
a40eb732 | 946 | if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) { |
0bc824be LP |
947 | /* If there a runlevels configured for this service |
948 | * but none of the standard ones, then we assume this | |
949 | * is some special kind of service (which might be | |
950 | * needed for early boot) and don't create any links | |
951 | * to it. */ | |
952 | ||
1124fe6f | 953 | UNIT(s)->default_dependencies = false; |
09cd1ab1 | 954 | |
09cd1ab1 | 955 | /* Don't timeout special services during boot (like fsck) */ |
d568a335 MS |
956 | s->timeout_start_usec = 0; |
957 | s->timeout_stop_usec = 0; | |
958 | } else { | |
959 | s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC; | |
960 | s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC; | |
961 | } | |
962 | ||
80876c20 | 963 | /* Special setting for all SysV services */ |
1f48cf56 | 964 | s->type = SERVICE_FORKING; |
f8788303 | 965 | s->remain_after_exit = !s->pid_file; |
1835f23c | 966 | s->guess_main_pid = false; |
525ee6f4 | 967 | s->restart = SERVICE_RESTART_NO; |
353e12c2 | 968 | s->exec_context.ignore_sigpipe = false; |
4819ff03 | 969 | s->kill_context.kill_mode = KILL_PROCESS; |
80876c20 | 970 | |
0b5d26f9 LP |
971 | /* We use the long description only if |
972 | * no short description is set. */ | |
973 | ||
974 | if (short_description) | |
975 | description = short_description; | |
976 | else if (chkconfig_description) | |
977 | description = chkconfig_description; | |
978 | else if (long_description) | |
979 | description = long_description; | |
980 | else | |
981 | description = NULL; | |
982 | ||
983 | if (description) { | |
984 | char *d; | |
985 | ||
e527618d | 986 | if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) { |
0b5d26f9 LP |
987 | r = -ENOMEM; |
988 | goto finish; | |
989 | } | |
990 | ||
ac155bb8 | 991 | u->description = d; |
0b5d26f9 LP |
992 | } |
993 | ||
ea87ca5a LP |
994 | /* The priority that has been set in /etc/rcN.d/ hierarchies |
995 | * takes precedence over what is stored as default in the LSB | |
996 | * header */ | |
997 | if (s->sysv_start_priority_from_rcnd >= 0) | |
998 | s->sysv_start_priority = s->sysv_start_priority_from_rcnd; | |
999 | ||
ac155bb8 | 1000 | u->load_state = UNIT_LOADED; |
23a177ef | 1001 | r = 0; |
2c4104f0 LP |
1002 | |
1003 | finish: | |
1004 | ||
1005 | if (f) | |
1006 | fclose(f); | |
1007 | ||
0b5d26f9 LP |
1008 | free(short_description); |
1009 | free(long_description); | |
1010 | free(chkconfig_description); | |
1011 | ||
2c4104f0 LP |
1012 | return r; |
1013 | } | |
1014 | ||
e537352b | 1015 | static int service_load_sysv_name(Service *s, const char *name) { |
2c4104f0 LP |
1016 | char **p; |
1017 | ||
1018 | assert(s); | |
1019 | assert(name); | |
1020 | ||
c2756a68 | 1021 | /* For SysV services we strip the *.sh suffixes. */ |
3f95f83c | 1022 | if (endswith(name, ".sh.service")) |
d017c6ca LP |
1023 | return -ENOENT; |
1024 | ||
1124fe6f | 1025 | STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) { |
2c4104f0 LP |
1026 | char *path; |
1027 | int r; | |
1028 | ||
b7def684 | 1029 | path = strjoin(*p, "/", name, NULL); |
44d91056 | 1030 | if (!path) |
2c4104f0 LP |
1031 | return -ENOMEM; |
1032 | ||
1033 | assert(endswith(path, ".service")); | |
1034 | path[strlen(path)-8] = 0; | |
1035 | ||
e537352b | 1036 | r = service_load_sysv_path(s, path); |
fbe9f3a9 | 1037 | |
1124fe6f | 1038 | if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) { |
20771ae3 | 1039 | /* Try *.sh source'able init scripts */ |
fbe9f3a9 LP |
1040 | strcat(path, ".sh"); |
1041 | r = service_load_sysv_path(s, path); | |
1042 | } | |
2c4104f0 LP |
1043 | free(path); |
1044 | ||
23a177ef | 1045 | if (r < 0) |
2c4104f0 | 1046 | return r; |
23a177ef | 1047 | |
88516c0c | 1048 | if (UNIT(s)->load_state != UNIT_STUB) |
23a177ef | 1049 | break; |
2c4104f0 LP |
1050 | } |
1051 | ||
1052 | return 0; | |
1053 | } | |
1054 | ||
e537352b | 1055 | static int service_load_sysv(Service *s) { |
2c4104f0 LP |
1056 | const char *t; |
1057 | Iterator i; | |
1058 | int r; | |
1059 | ||
5cb5a6ff LP |
1060 | assert(s); |
1061 | ||
1062 | /* Load service data from SysV init scripts, preferably with | |
1063 | * LSB headers ... */ | |
1064 | ||
1124fe6f | 1065 | if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path)) |
2c4104f0 LP |
1066 | return 0; |
1067 | ||
1124fe6f | 1068 | if ((t = UNIT(s)->id)) |
e537352b | 1069 | if ((r = service_load_sysv_name(s, t)) < 0) |
2c4104f0 LP |
1070 | return r; |
1071 | ||
1124fe6f MS |
1072 | if (UNIT(s)->load_state == UNIT_STUB) |
1073 | SET_FOREACH(t, UNIT(s)->names, i) { | |
1074 | if (t == UNIT(s)->id) | |
e537352b LP |
1075 | continue; |
1076 | ||
e364ad06 | 1077 | if ((r = service_load_sysv_name(s, t)) < 0) |
23a177ef LP |
1078 | return r; |
1079 | ||
1124fe6f | 1080 | if (UNIT(s)->load_state != UNIT_STUB) |
23a177ef LP |
1081 | break; |
1082 | } | |
2c4104f0 LP |
1083 | |
1084 | return 0; | |
5cb5a6ff | 1085 | } |
07459bb6 | 1086 | #endif |
5cb5a6ff | 1087 | |
243b1432 LP |
1088 | static int service_verify(Service *s) { |
1089 | assert(s); | |
1090 | ||
1124fe6f | 1091 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
1092 | return 0; |
1093 | ||
1094 | if (!s->exec_command[SERVICE_EXEC_START]) { | |
ebc2259d | 1095 | log_error_unit(UNIT(s)->id, "%s lacks ExecStart setting. Refusing.", UNIT(s)->id); |
243b1432 LP |
1096 | return -EINVAL; |
1097 | } | |
1098 | ||
34e9ba66 LP |
1099 | if (s->type != SERVICE_ONESHOT && |
1100 | s->exec_command[SERVICE_EXEC_START]->command_next) { | |
ebc2259d | 1101 | log_error_unit(UNIT(s)->id, "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id); |
6cf6bbc2 LP |
1102 | return -EINVAL; |
1103 | } | |
1104 | ||
b0693d30 | 1105 | if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { |
ebc2259d | 1106 | log_error_unit(UNIT(s)->id, "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id); |
b0693d30 MW |
1107 | return -EINVAL; |
1108 | } | |
1109 | ||
05e343b7 | 1110 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
ebc2259d | 1111 | log_error_unit(UNIT(s)->id, "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id); |
4d0e5dbd LP |
1112 | return -EINVAL; |
1113 | } | |
1114 | ||
7e2668c6 | 1115 | if (s->bus_name && s->type != SERVICE_DBUS) |
ebc2259d | 1116 | log_warning_unit(UNIT(s)->id, "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id); |
7e2668c6 | 1117 | |
ebc2259d LP |
1118 | if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) { |
1119 | log_error_unit(UNIT(s)->id, "%s has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing.", UNIT(s)->id); | |
05e343b7 LP |
1120 | return -EINVAL; |
1121 | } | |
1122 | ||
243b1432 LP |
1123 | return 0; |
1124 | } | |
1125 | ||
a40eb732 LP |
1126 | static int service_add_default_dependencies(Service *s) { |
1127 | int r; | |
1128 | ||
1129 | assert(s); | |
1130 | ||
1131 | /* Add a number of automatic dependencies useful for the | |
1132 | * majority of services. */ | |
1133 | ||
1134 | /* First, pull in base system */ | |
fccd44ec KS |
1135 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, |
1136 | SPECIAL_BASIC_TARGET, NULL, true); | |
1137 | if (r < 0) | |
1138 | return r; | |
a40eb732 LP |
1139 | |
1140 | /* Second, activate normal shutdown */ | |
117dcc57 ZJS |
1141 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, |
1142 | SPECIAL_SHUTDOWN_TARGET, NULL, true); | |
1143 | return r; | |
a40eb732 LP |
1144 | } |
1145 | ||
4dfc092a LP |
1146 | static void service_fix_output(Service *s) { |
1147 | assert(s); | |
1148 | ||
1149 | /* If nothing has been explicitly configured, patch default | |
1150 | * output in. If input is socket/tty we avoid this however, | |
1151 | * since in that case we want output to default to the same | |
1152 | * place as we read input from. */ | |
1153 | ||
1154 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
1155 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
1156 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 1157 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
1158 | |
1159 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
1160 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 1161 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
1162 | } |
1163 | ||
e537352b LP |
1164 | static int service_load(Unit *u) { |
1165 | int r; | |
1166 | Service *s = SERVICE(u); | |
1167 | ||
1168 | assert(s); | |
1e2e8133 | 1169 | |
5cb5a6ff | 1170 | /* Load a .service file */ |
c2756a68 LP |
1171 | r = unit_load_fragment(u); |
1172 | if (r < 0) | |
5cb5a6ff LP |
1173 | return r; |
1174 | ||
07459bb6 | 1175 | #ifdef HAVE_SYSV_COMPAT |
bd77d0fc | 1176 | /* Load a classic init script as a fallback, if we couldn't find anything */ |
c2756a68 LP |
1177 | if (u->load_state == UNIT_STUB) { |
1178 | r = service_load_sysv(s); | |
1179 | if (r < 0) | |
23a177ef | 1180 | return r; |
c2756a68 | 1181 | } |
07459bb6 | 1182 | #endif |
d46de8a1 | 1183 | |
23a177ef | 1184 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 1185 | if (u->load_state == UNIT_STUB) |
23a177ef | 1186 | return -ENOENT; |
034c6ed7 | 1187 | |
23a177ef | 1188 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 1189 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
1190 | |
1191 | /* We were able to load something, then let's add in | |
1192 | * the dropin directories. */ | |
1193 | r = unit_load_dropin(u); | |
1194 | if (r < 0) | |
1195 | return r; | |
1196 | ||
0b86feac LP |
1197 | if (s->type == _SERVICE_TYPE_INVALID) |
1198 | s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE; | |
1199 | ||
d568a335 MS |
1200 | /* Oneshot services have disabled start timeout by default */ |
1201 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
1202 | s->timeout_start_usec = 0; | |
98709151 | 1203 | |
4e2b0f9b LP |
1204 | service_fix_output(s); |
1205 | ||
117dcc57 ZJS |
1206 | r = unit_add_exec_dependencies(u, &s->exec_context); |
1207 | if (r < 0) | |
23a177ef LP |
1208 | return r; |
1209 | ||
a016b922 LP |
1210 | r = unit_add_default_slice(u); |
1211 | if (r < 0) | |
1212 | return r; | |
1213 | ||
07459bb6 | 1214 | #ifdef HAVE_SYSV_COMPAT |
117dcc57 ZJS |
1215 | r = sysv_fix_order(s); |
1216 | if (r < 0) | |
23a177ef | 1217 | return r; |
07459bb6 | 1218 | #endif |
05e343b7 | 1219 | |
718db961 LP |
1220 | if (s->bus_name) { |
1221 | r = unit_watch_bus_name(u, s->bus_name); | |
1222 | if (r < 0) | |
a40eb732 | 1223 | return r; |
718db961 | 1224 | } |
c952c6ec LP |
1225 | |
1226 | if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) | |
1227 | s->notify_access = NOTIFY_MAIN; | |
a40eb732 | 1228 | |
02c4ef9c LP |
1229 | if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) |
1230 | s->notify_access = NOTIFY_MAIN; | |
1231 | ||
117dcc57 ZJS |
1232 | if (UNIT(s)->default_dependencies) { |
1233 | r = service_add_default_dependencies(s); | |
1234 | if (r < 0) | |
a40eb732 | 1235 | return r; |
117dcc57 | 1236 | } |
e06c73cc | 1237 | |
cba6e062 | 1238 | r = unit_exec_context_defaults(u, &s->exec_context); |
e06c73cc LP |
1239 | if (r < 0) |
1240 | return r; | |
8e274523 LP |
1241 | } |
1242 | ||
243b1432 | 1243 | return service_verify(s); |
034c6ed7 LP |
1244 | } |
1245 | ||
87f0e418 | 1246 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 1247 | |
5cb5a6ff | 1248 | ServiceExecCommand c; |
87f0e418 | 1249 | Service *s = SERVICE(u); |
47be870b | 1250 | const char *prefix2; |
7fd1b19b | 1251 | _cleanup_free_ char *p2 = NULL; |
5cb5a6ff LP |
1252 | |
1253 | assert(s); | |
1254 | ||
47be870b LP |
1255 | p2 = strappend(prefix, "\t"); |
1256 | prefix2 = p2 ? p2 : prefix; | |
44d8db9e | 1257 | |
5cb5a6ff | 1258 | fprintf(f, |
81a2b7ce | 1259 | "%sService State: %s\n" |
f42806df LP |
1260 | "%sResult: %s\n" |
1261 | "%sReload Result: %s\n" | |
81a2b7ce | 1262 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 1263 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 1264 | "%sRemainAfterExit: %s\n" |
3185a36b | 1265 | "%sGuessMainPID: %s\n" |
c952c6ec | 1266 | "%sType: %s\n" |
2cf3143a | 1267 | "%sRestart: %s\n" |
c952c6ec | 1268 | "%sNotifyAccess: %s\n", |
81a2b7ce | 1269 | prefix, service_state_to_string(s->state), |
f42806df LP |
1270 | prefix, service_result_to_string(s->result), |
1271 | prefix, service_result_to_string(s->reload_result), | |
81a2b7ce | 1272 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 1273 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 1274 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 1275 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 1276 | prefix, service_type_to_string(s->type), |
2cf3143a | 1277 | prefix, service_restart_to_string(s->restart), |
c952c6ec | 1278 | prefix, notify_access_to_string(s->notify_access)); |
5cb5a6ff | 1279 | |
70123e68 LP |
1280 | if (s->control_pid > 0) |
1281 | fprintf(f, | |
ccd06097 ZJS |
1282 | "%sControl PID: "PID_FMT"\n", |
1283 | prefix, s->control_pid); | |
70123e68 LP |
1284 | |
1285 | if (s->main_pid > 0) | |
1286 | fprintf(f, | |
ccd06097 | 1287 | "%sMain PID: "PID_FMT"\n" |
6dfa5494 LP |
1288 | "%sMain PID Known: %s\n" |
1289 | "%sMain PID Alien: %s\n", | |
ccd06097 | 1290 | prefix, s->main_pid, |
6dfa5494 LP |
1291 | prefix, yes_no(s->main_pid_known), |
1292 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 1293 | |
034c6ed7 LP |
1294 | if (s->pid_file) |
1295 | fprintf(f, | |
1296 | "%sPIDFile: %s\n", | |
1297 | prefix, s->pid_file); | |
1298 | ||
05e343b7 LP |
1299 | if (s->bus_name) |
1300 | fprintf(f, | |
1301 | "%sBusName: %s\n" | |
1302 | "%sBus Name Good: %s\n", | |
1303 | prefix, s->bus_name, | |
1304 | prefix, yes_no(s->bus_name_good)); | |
1305 | ||
4819ff03 | 1306 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
1307 | exec_context_dump(&s->exec_context, f, prefix); |
1308 | ||
e537352b | 1309 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 1310 | |
44d8db9e LP |
1311 | if (!s->exec_command[c]) |
1312 | continue; | |
1313 | ||
40d50879 | 1314 | fprintf(f, "%s-> %s:\n", |
94f04347 | 1315 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
1316 | |
1317 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 1318 | } |
44d8db9e | 1319 | |
07459bb6 | 1320 | #ifdef HAVE_SYSV_COMPAT |
1b64d026 | 1321 | if (s->is_sysv) |
2c4104f0 | 1322 | fprintf(f, |
9fff8a1f LP |
1323 | "%sSysV Init Script has LSB Header: %s\n" |
1324 | "%sSysVEnabled: %s\n", | |
9fff8a1f LP |
1325 | prefix, yes_no(s->sysv_has_lsb), |
1326 | prefix, yes_no(s->sysv_enabled)); | |
2c4104f0 LP |
1327 | |
1328 | if (s->sysv_start_priority >= 0) | |
1329 | fprintf(f, | |
9fff8a1f LP |
1330 | "%sSysVStartPriority: %i\n", |
1331 | prefix, s->sysv_start_priority); | |
2c4104f0 | 1332 | |
8309400a LP |
1333 | if (s->sysv_runlevels) |
1334 | fprintf(f, "%sSysVRunLevels: %s\n", | |
1335 | prefix, s->sysv_runlevels); | |
07459bb6 | 1336 | #endif |
23a177ef | 1337 | |
8c47c732 LP |
1338 | if (s->status_text) |
1339 | fprintf(f, "%sStatus Text: %s\n", | |
1340 | prefix, s->status_text); | |
5cb5a6ff LP |
1341 | } |
1342 | ||
c5419d42 | 1343 | static int service_load_pid_file(Service *s, bool may_warn) { |
7fd1b19b | 1344 | _cleanup_free_ char *k = NULL; |
034c6ed7 | 1345 | int r; |
5925dd3c | 1346 | pid_t pid; |
034c6ed7 LP |
1347 | |
1348 | assert(s); | |
1349 | ||
034c6ed7 | 1350 | if (!s->pid_file) |
13230d5d | 1351 | return -ENOENT; |
034c6ed7 | 1352 | |
117dcc57 ZJS |
1353 | r = read_one_line_file(s->pid_file, &k); |
1354 | if (r < 0) { | |
c5419d42 | 1355 | if (may_warn) |
66870f90 ZJS |
1356 | log_info_unit(UNIT(s)->id, |
1357 | "PID file %s not readable (yet?) after %s.", | |
1358 | s->pid_file, service_state_to_string(s->state)); | |
034c6ed7 | 1359 | return r; |
5375410b | 1360 | } |
034c6ed7 | 1361 | |
5925dd3c | 1362 | r = parse_pid(k, &pid); |
bc41f93e ZJS |
1363 | if (r < 0) { |
1364 | if (may_warn) | |
1365 | log_info_unit(UNIT(s)->id, | |
1366 | "Failed to read PID from file %s: %s", | |
1367 | s->pid_file, strerror(-r)); | |
5925dd3c | 1368 | return r; |
bc41f93e | 1369 | } |
406eaf93 | 1370 | |
5925dd3c | 1371 | if (kill(pid, 0) < 0 && errno != EPERM) { |
c5419d42 | 1372 | if (may_warn) |
66870f90 | 1373 | log_info_unit(UNIT(s)->id, |
ccd06097 ZJS |
1374 | "PID "PID_FMT" read from file %s does not exist.", |
1375 | pid, s->pid_file); | |
b8c597d5 LP |
1376 | return -ESRCH; |
1377 | } | |
1378 | ||
db01f8b3 MS |
1379 | if (s->main_pid_known) { |
1380 | if (pid == s->main_pid) | |
1381 | return 0; | |
1382 | ||
66870f90 | 1383 | log_debug_unit(UNIT(s)->id, |
ccd06097 ZJS |
1384 | "Main PID changing: "PID_FMT" -> "PID_FMT, |
1385 | s->main_pid, pid); | |
db01f8b3 MS |
1386 | service_unwatch_main_pid(s); |
1387 | s->main_pid_known = false; | |
3a111838 | 1388 | } else |
66870f90 | 1389 | log_debug_unit(UNIT(s)->id, |
ccd06097 | 1390 | "Main PID loaded: "PID_FMT, pid); |
db01f8b3 | 1391 | |
117dcc57 ZJS |
1392 | r = service_set_main_pid(s, pid); |
1393 | if (r < 0) | |
16f6025e LP |
1394 | return r; |
1395 | ||
117dcc57 | 1396 | r = unit_watch_pid(UNIT(s), pid); |
bc41f93e | 1397 | if (r < 0) { |
5925dd3c | 1398 | /* FIXME: we need to do something here */ |
bc41f93e | 1399 | log_warning_unit(UNIT(s)->id, |
ccd06097 ZJS |
1400 | "Failed to watch PID "PID_FMT" from service %s", |
1401 | pid, UNIT(s)->id); | |
5925dd3c | 1402 | return r; |
bc41f93e | 1403 | } |
034c6ed7 LP |
1404 | |
1405 | return 0; | |
1406 | } | |
1407 | ||
4fbf50b3 LP |
1408 | static int service_search_main_pid(Service *s) { |
1409 | pid_t pid; | |
1410 | int r; | |
1411 | ||
1412 | assert(s); | |
1413 | ||
3185a36b LP |
1414 | /* If we know it anyway, don't ever fallback to unreliable |
1415 | * heuristics */ | |
4fbf50b3 LP |
1416 | if (s->main_pid_known) |
1417 | return 0; | |
1418 | ||
3185a36b LP |
1419 | if (!s->guess_main_pid) |
1420 | return 0; | |
1421 | ||
4fbf50b3 LP |
1422 | assert(s->main_pid <= 0); |
1423 | ||
4ad49000 | 1424 | pid = unit_search_main_pid(UNIT(s)); |
117dcc57 | 1425 | if (pid <= 0) |
4fbf50b3 LP |
1426 | return -ENOENT; |
1427 | ||
66870f90 | 1428 | log_debug_unit(UNIT(s)->id, |
ccd06097 | 1429 | "Main PID guessed: "PID_FMT, pid); |
117dcc57 ZJS |
1430 | r = service_set_main_pid(s, pid); |
1431 | if (r < 0) | |
4fbf50b3 LP |
1432 | return r; |
1433 | ||
117dcc57 ZJS |
1434 | r = unit_watch_pid(UNIT(s), pid); |
1435 | if (r < 0) | |
4fbf50b3 | 1436 | /* FIXME: we need to do something here */ |
a827e373 | 1437 | log_warning_unit(UNIT(s)->id, |
ccd06097 ZJS |
1438 | "Failed to watch PID "PID_FMT" from service %s", |
1439 | pid, UNIT(s)->id); | |
4fbf50b3 LP |
1440 | return r; |
1441 | ||
1442 | return 0; | |
1443 | } | |
1444 | ||
034c6ed7 LP |
1445 | static void service_set_state(Service *s, ServiceState state) { |
1446 | ServiceState old_state; | |
e056b01d | 1447 | const UnitActiveState *table; |
842129f5 | 1448 | |
5cb5a6ff LP |
1449 | assert(s); |
1450 | ||
e056b01d LP |
1451 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
1452 | ||
034c6ed7 | 1453 | old_state = s->state; |
5cb5a6ff | 1454 | s->state = state; |
034c6ed7 | 1455 | |
3a111838 MS |
1456 | service_unwatch_pid_file(s); |
1457 | ||
842129f5 LP |
1458 | if (!IN_SET(state, |
1459 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1460 | SERVICE_RELOAD, | |
bf108e55 LP |
1461 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, |
1462 | SERVICE_STOP_POST, | |
842129f5 LP |
1463 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, |
1464 | SERVICE_AUTO_RESTART)) | |
718db961 | 1465 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 1466 | |
842129f5 LP |
1467 | if (!IN_SET(state, |
1468 | SERVICE_START, SERVICE_START_POST, | |
1469 | SERVICE_RUNNING, SERVICE_RELOAD, | |
bf108e55 LP |
1470 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, |
1471 | SERVICE_STOP_POST, | |
1472 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
5e94833f | 1473 | service_unwatch_main_pid(s); |
867b3b7d LP |
1474 | s->main_command = NULL; |
1475 | } | |
034c6ed7 | 1476 | |
842129f5 LP |
1477 | if (!IN_SET(state, |
1478 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1479 | SERVICE_RELOAD, | |
bf108e55 LP |
1480 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, |
1481 | SERVICE_STOP_POST, | |
842129f5 | 1482 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { |
5e94833f | 1483 | service_unwatch_control_pid(s); |
034c6ed7 | 1484 | s->control_command = NULL; |
a16e1123 | 1485 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 1486 | } |
034c6ed7 | 1487 | |
842129f5 LP |
1488 | if (!IN_SET(state, |
1489 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1490 | SERVICE_RUNNING, SERVICE_RELOAD, | |
1491 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1492 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && | |
1124fe6f | 1493 | !(state == SERVICE_DEAD && UNIT(s)->job)) { |
4f2d528d | 1494 | service_close_socket_fd(s); |
6cf6bbc2 LP |
1495 | service_connection_unref(s); |
1496 | } | |
4f2d528d | 1497 | |
7596e9e1 | 1498 | if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
1499 | service_stop_watchdog(s); |
1500 | ||
f6023656 LP |
1501 | /* For the inactive states unit_notify() will trim the cgroup, |
1502 | * but for exit we have to do that ourselves... */ | |
1124fe6f | 1503 | if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0) |
4ad49000 | 1504 | unit_destroy_cgroup(UNIT(s)); |
f6023656 | 1505 | |
9cd86184 OB |
1506 | /* For remain_after_exit services, let's see if we can "release" the |
1507 | * hold on the console, since unit_notify() only does that in case of | |
1508 | * change of state */ | |
1509 | if (state == SERVICE_EXITED && s->remain_after_exit && | |
1510 | UNIT(s)->manager->n_on_console > 0) { | |
1511 | ExecContext *ec = unit_get_exec_context(UNIT(s)); | |
1512 | if (ec && exec_context_may_touch_console(ec)) { | |
1513 | Manager *m = UNIT(s)->manager; | |
1514 | ||
1515 | m->n_on_console --; | |
1516 | if (m->n_on_console == 0) | |
1517 | /* unset no_console_output flag, since the console is free */ | |
1518 | m->no_console_output = false; | |
1519 | } | |
1520 | } | |
1521 | ||
e537352b | 1522 | if (old_state != state) |
842129f5 | 1523 | log_debug_unit(UNIT(s)->id, "%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 1524 | |
e056b01d | 1525 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
f42806df | 1526 | s->reload_result = SERVICE_SUCCESS; |
034c6ed7 LP |
1527 | } |
1528 | ||
a16e1123 LP |
1529 | static int service_coldplug(Unit *u) { |
1530 | Service *s = SERVICE(u); | |
1531 | int r; | |
1532 | ||
1533 | assert(s); | |
1534 | assert(s->state == SERVICE_DEAD); | |
1535 | ||
1536 | if (s->deserialized_state != s->state) { | |
1537 | ||
bf108e55 LP |
1538 | if (IN_SET(s->deserialized_state, |
1539 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1540 | SERVICE_RELOAD, | |
1541 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, | |
1542 | SERVICE_STOP_POST, | |
1543 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
92c1622e LP |
1544 | |
1545 | usec_t k; | |
6c12b52e | 1546 | |
bf108e55 | 1547 | k = IN_SET(s->deserialized_state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD) ? s->timeout_start_usec : s->timeout_stop_usec; |
e558336f | 1548 | |
92c1622e LP |
1549 | /* For the start/stop timeouts 0 means off */ |
1550 | if (k > 0) { | |
1551 | r = service_arm_timer(s, k); | |
36697dc0 | 1552 | if (r < 0) |
e558336f LP |
1553 | return r; |
1554 | } | |
1555 | } | |
a16e1123 | 1556 | |
92c1622e LP |
1557 | if (s->deserialized_state == SERVICE_AUTO_RESTART) { |
1558 | ||
1559 | /* The restart timeouts 0 means immediately */ | |
1560 | r = service_arm_timer(s, s->restart_usec); | |
1561 | if (r < 0) | |
1562 | return r; | |
1563 | } | |
1564 | ||
bf108e55 LP |
1565 | if (pid_valid(s->main_pid) && |
1566 | ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) || | |
1567 | IN_SET(s->deserialized_state, | |
1568 | SERVICE_START, SERVICE_START_POST, | |
1569 | SERVICE_RUNNING, SERVICE_RELOAD, | |
1570 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, | |
1571 | SERVICE_STOP_POST, | |
1572 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { | |
1573 | r = unit_watch_pid(UNIT(s), s->main_pid); | |
1574 | if (r < 0) | |
1575 | return r; | |
1576 | } | |
a16e1123 | 1577 | |
bf108e55 LP |
1578 | if (pid_valid(s->control_pid) && |
1579 | IN_SET(s->deserialized_state, | |
1580 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1581 | SERVICE_RELOAD, | |
1582 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, | |
1583 | SERVICE_STOP_POST, | |
1584 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
1585 | r = unit_watch_pid(UNIT(s), s->control_pid); | |
1586 | if (r < 0) | |
1587 | return r; | |
1588 | } | |
a16e1123 | 1589 | |
842129f5 LP |
1590 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
1591 | service_start_watchdog(s); | |
bb242b7b | 1592 | |
a16e1123 LP |
1593 | service_set_state(s, s->deserialized_state); |
1594 | } | |
92c1622e | 1595 | |
a16e1123 LP |
1596 | return 0; |
1597 | } | |
1598 | ||
44d8db9e LP |
1599 | static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { |
1600 | Iterator i; | |
1601 | int r; | |
1602 | int *rfds = NULL; | |
1603 | unsigned rn_fds = 0; | |
57020a3a | 1604 | Unit *u; |
44d8db9e LP |
1605 | |
1606 | assert(s); | |
1607 | assert(fds); | |
1608 | assert(n_fds); | |
1609 | ||
6cf6bbc2 LP |
1610 | if (s->socket_fd >= 0) |
1611 | return 0; | |
1612 | ||
1124fe6f | 1613 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
44d8db9e LP |
1614 | int *cfds; |
1615 | unsigned cn_fds; | |
57020a3a LP |
1616 | Socket *sock; |
1617 | ||
ac155bb8 | 1618 | if (u->type != UNIT_SOCKET) |
57020a3a LP |
1619 | continue; |
1620 | ||
1621 | sock = SOCKET(u); | |
44d8db9e | 1622 | |
117dcc57 ZJS |
1623 | r = socket_collect_fds(sock, &cfds, &cn_fds); |
1624 | if (r < 0) | |
44d8db9e LP |
1625 | goto fail; |
1626 | ||
1627 | if (!cfds) | |
1628 | continue; | |
1629 | ||
1630 | if (!rfds) { | |
1631 | rfds = cfds; | |
1632 | rn_fds = cn_fds; | |
1633 | } else { | |
1634 | int *t; | |
1635 | ||
117dcc57 ZJS |
1636 | t = new(int, rn_fds+cn_fds); |
1637 | if (!t) { | |
44d8db9e LP |
1638 | free(cfds); |
1639 | r = -ENOMEM; | |
1640 | goto fail; | |
1641 | } | |
1642 | ||
9c1b183c LP |
1643 | memcpy(t, rfds, rn_fds * sizeof(int)); |
1644 | memcpy(t+rn_fds, cfds, cn_fds * sizeof(int)); | |
44d8db9e LP |
1645 | free(rfds); |
1646 | free(cfds); | |
1647 | ||
1648 | rfds = t; | |
1649 | rn_fds = rn_fds+cn_fds; | |
1650 | } | |
1651 | } | |
1652 | ||
1653 | *fds = rfds; | |
1654 | *n_fds = rn_fds; | |
3e33402a | 1655 | |
44d8db9e LP |
1656 | return 0; |
1657 | ||
1658 | fail: | |
1659 | free(rfds); | |
3e33402a | 1660 | |
44d8db9e LP |
1661 | return r; |
1662 | } | |
1663 | ||
81a2b7ce LP |
1664 | static int service_spawn( |
1665 | Service *s, | |
1666 | ExecCommand *c, | |
1667 | bool timeout, | |
1668 | bool pass_fds, | |
1669 | bool apply_permissions, | |
1670 | bool apply_chroot, | |
1e3ad081 | 1671 | bool apply_tty_stdin, |
c952c6ec | 1672 | bool set_notify_socket, |
ecedd90f | 1673 | bool is_control, |
81a2b7ce LP |
1674 | pid_t *_pid) { |
1675 | ||
034c6ed7 LP |
1676 | pid_t pid; |
1677 | int r; | |
117dcc57 | 1678 | int *fds = NULL; |
7fd1b19b | 1679 | _cleanup_free_ int *fdsbuf = NULL; |
2105e76a | 1680 | unsigned n_fds = 0, n_env = 0; |
7fd1b19b | 1681 | _cleanup_strv_free_ char |
117dcc57 | 1682 | **argv = NULL, **final_env = NULL, **our_env = NULL; |
4ad49000 | 1683 | const char *path; |
034c6ed7 LP |
1684 | |
1685 | assert(s); | |
1686 | assert(c); | |
1687 | assert(_pid); | |
1688 | ||
4ad49000 LP |
1689 | unit_realize_cgroup(UNIT(s)); |
1690 | ||
613b411c LP |
1691 | r = unit_setup_exec_runtime(UNIT(s)); |
1692 | if (r < 0) | |
1693 | goto fail; | |
1694 | ||
6cf6bbc2 LP |
1695 | if (pass_fds || |
1696 | s->exec_context.std_input == EXEC_INPUT_SOCKET || | |
1697 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1698 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1699 | ||
4f2d528d LP |
1700 | if (s->socket_fd >= 0) { |
1701 | fds = &s->socket_fd; | |
1702 | n_fds = 1; | |
6cf6bbc2 | 1703 | } else { |
117dcc57 ZJS |
1704 | r = service_collect_fds(s, &fdsbuf, &n_fds); |
1705 | if (r < 0) | |
6cf6bbc2 LP |
1706 | goto fail; |
1707 | ||
1708 | fds = fdsbuf; | |
1709 | } | |
4f2d528d | 1710 | } |
44d8db9e | 1711 | |
92c1622e LP |
1712 | if (timeout && s->timeout_start_usec > 0) { |
1713 | r = service_arm_timer(s, s->timeout_start_usec); | |
1714 | if (r < 0) | |
1715 | goto fail; | |
1716 | } else | |
1717 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
034c6ed7 | 1718 | |
19f6d710 LP |
1719 | r = unit_full_printf_strv(UNIT(s), c->argv, &argv); |
1720 | if (r < 0) | |
9e2f7c11 | 1721 | goto fail; |
9e2f7c11 | 1722 | |
09812eb7 | 1723 | our_env = new0(char*, 4); |
97ae63e2 | 1724 | if (!our_env) { |
2105e76a LP |
1725 | r = -ENOMEM; |
1726 | goto fail; | |
1727 | } | |
c952c6ec | 1728 | |
2105e76a | 1729 | if (set_notify_socket) |
1124fe6f | 1730 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) { |
c952c6ec LP |
1731 | r = -ENOMEM; |
1732 | goto fail; | |
1733 | } | |
1734 | ||
2105e76a | 1735 | if (s->main_pid > 0) |
ccd06097 | 1736 | if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) { |
c952c6ec LP |
1737 | r = -ENOMEM; |
1738 | goto fail; | |
1739 | } | |
2105e76a | 1740 | |
4ad49000 | 1741 | if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM) |
ccd06097 | 1742 | if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) { |
97ae63e2 LP |
1743 | r = -ENOMEM; |
1744 | goto fail; | |
1745 | } | |
1746 | ||
1747 | final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL); | |
1748 | if (!final_env) { | |
2105e76a LP |
1749 | r = -ENOMEM; |
1750 | goto fail; | |
1751 | } | |
c952c6ec | 1752 | |
4ad49000 LP |
1753 | if (is_control && UNIT(s)->cgroup_path) { |
1754 | path = strappenda(UNIT(s)->cgroup_path, "/control"); | |
1755 | cg_create(SYSTEMD_CGROUP_CONTROLLER, path); | |
1756 | } else | |
1757 | path = UNIT(s)->cgroup_path; | |
1758 | ||
9e2f7c11 LP |
1759 | r = exec_spawn(c, |
1760 | argv, | |
1761 | &s->exec_context, | |
1762 | fds, n_fds, | |
2105e76a | 1763 | final_env, |
9e2f7c11 LP |
1764 | apply_permissions, |
1765 | apply_chroot, | |
1e3ad081 | 1766 | apply_tty_stdin, |
1124fe6f | 1767 | UNIT(s)->manager->confirm_spawn, |
13b84ec7 | 1768 | UNIT(s)->manager->cgroup_supported, |
4ad49000 | 1769 | path, |
62bca2c6 | 1770 | UNIT(s)->id, |
09812eb7 | 1771 | s->watchdog_usec, |
f2b68789 | 1772 | s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL, |
613b411c | 1773 | s->exec_runtime, |
9e2f7c11 | 1774 | &pid); |
9e2f7c11 | 1775 | if (r < 0) |
034c6ed7 LP |
1776 | goto fail; |
1777 | ||
117dcc57 ZJS |
1778 | r = unit_watch_pid(UNIT(s), pid); |
1779 | if (r < 0) | |
034c6ed7 LP |
1780 | /* FIXME: we need to do something here */ |
1781 | goto fail; | |
1782 | ||
1783 | *_pid = pid; | |
1784 | ||
5cb5a6ff | 1785 | return 0; |
034c6ed7 LP |
1786 | |
1787 | fail: | |
1788 | if (timeout) | |
718db961 | 1789 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 LP |
1790 | |
1791 | return r; | |
1792 | } | |
1793 | ||
80876c20 LP |
1794 | static int main_pid_good(Service *s) { |
1795 | assert(s); | |
1796 | ||
1797 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1798 | * don't know */ | |
1799 | ||
1800 | /* If we know the pid file, then lets just check if it is | |
1801 | * still valid */ | |
6dfa5494 LP |
1802 | if (s->main_pid_known) { |
1803 | ||
1804 | /* If it's an alien child let's check if it is still | |
1805 | * alive ... */ | |
62220cf7 | 1806 | if (s->main_pid_alien && s->main_pid > 0) |
6dfa5494 LP |
1807 | return kill(s->main_pid, 0) >= 0 || errno != ESRCH; |
1808 | ||
1809 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1810 | * which we really should wait for to collect exit | |
1811 | * status and code */ | |
80876c20 | 1812 | return s->main_pid > 0; |
6dfa5494 | 1813 | } |
80876c20 LP |
1814 | |
1815 | /* We don't know the pid */ | |
1816 | return -EAGAIN; | |
1817 | } | |
1818 | ||
44a6b1b6 | 1819 | _pure_ static int control_pid_good(Service *s) { |
80876c20 LP |
1820 | assert(s); |
1821 | ||
1822 | return s->control_pid > 0; | |
1823 | } | |
1824 | ||
1825 | static int cgroup_good(Service *s) { | |
1826 | int r; | |
1827 | ||
1828 | assert(s); | |
1829 | ||
4ad49000 LP |
1830 | if (!UNIT(s)->cgroup_path) |
1831 | return 0; | |
1832 | ||
1833 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true); | |
117dcc57 | 1834 | if (r < 0) |
80876c20 LP |
1835 | return r; |
1836 | ||
1837 | return !r; | |
1838 | } | |
1839 | ||
f42806df | 1840 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 LP |
1841 | int r; |
1842 | assert(s); | |
1843 | ||
f42806df LP |
1844 | if (f != SERVICE_SUCCESS) |
1845 | s->result = f; | |
034c6ed7 | 1846 | |
0c7f15b3 MS |
1847 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1848 | ||
034c6ed7 | 1849 | if (allow_restart && |
47342320 | 1850 | !s->forbid_restart && |
034c6ed7 | 1851 | (s->restart == SERVICE_RESTART_ALWAYS || |
f42806df LP |
1852 | (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) || |
1853 | (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) || | |
dc99a976 | 1854 | (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) || |
f42806df | 1855 | (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL || |
96342de6 LN |
1856 | s->result == SERVICE_FAILURE_CORE_DUMP))) && |
1857 | (s->result != SERVICE_FAILURE_EXIT_CODE || | |
1858 | !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) && | |
1859 | (s->result != SERVICE_FAILURE_SIGNAL || | |
718db961 | 1860 | !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))) { |
034c6ed7 | 1861 | |
718db961 | 1862 | r = service_arm_timer(s, s->restart_usec); |
f42806df | 1863 | if (r < 0) |
034c6ed7 LP |
1864 | goto fail; |
1865 | ||
1866 | service_set_state(s, SERVICE_AUTO_RESTART); | |
0c7f15b3 | 1867 | } |
034c6ed7 | 1868 | |
47342320 LP |
1869 | s->forbid_restart = false; |
1870 | ||
c17ec25e | 1871 | /* we want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1872 | exec_runtime_destroy(s->exec_runtime); |
1873 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1874 | |
9285c9ff LN |
1875 | /* Try to delete the pid file. At this point it will be |
1876 | * out-of-date, and some software might be confused by it, so | |
1877 | * let's remove it. */ | |
1878 | if (s->pid_file) | |
1879 | unlink_noerrno(s->pid_file); | |
1880 | ||
034c6ed7 LP |
1881 | return; |
1882 | ||
1883 | fail: | |
66870f90 ZJS |
1884 | log_warning_unit(UNIT(s)->id, |
1885 | "%s failed to run install restart timer: %s", | |
1886 | UNIT(s)->id, strerror(-r)); | |
f42806df | 1887 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1888 | } |
1889 | ||
f42806df | 1890 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1891 | int r; |
1892 | assert(s); | |
1893 | ||
f42806df LP |
1894 | if (f != SERVICE_SUCCESS) |
1895 | s->result = f; | |
034c6ed7 | 1896 | |
5e94833f LP |
1897 | service_unwatch_control_pid(s); |
1898 | ||
117dcc57 ZJS |
1899 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1900 | if (s->control_command) { | |
867b3b7d LP |
1901 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1902 | ||
ecedd90f LP |
1903 | r = service_spawn(s, |
1904 | s->control_command, | |
1905 | true, | |
1906 | false, | |
1907 | !s->permissions_start_only, | |
1908 | !s->root_directory_start_only, | |
1909 | true, | |
1910 | false, | |
1911 | true, | |
1912 | &s->control_pid); | |
1913 | if (r < 0) | |
034c6ed7 LP |
1914 | goto fail; |
1915 | ||
d6ea93e3 | 1916 | |
80876c20 LP |
1917 | service_set_state(s, SERVICE_STOP_POST); |
1918 | } else | |
c961869a | 1919 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1920 | |
1921 | return; | |
1922 | ||
1923 | fail: | |
66870f90 ZJS |
1924 | log_warning_unit(UNIT(s)->id, |
1925 | "%s failed to run 'stop-post' task: %s", | |
1926 | UNIT(s)->id, strerror(-r)); | |
f42806df | 1927 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1928 | } |
1929 | ||
f42806df | 1930 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1931 | int r; |
034c6ed7 LP |
1932 | |
1933 | assert(s); | |
1934 | ||
f42806df LP |
1935 | if (f != SERVICE_SUCCESS) |
1936 | s->result = f; | |
034c6ed7 | 1937 | |
cd2086fe LP |
1938 | r = unit_kill_context( |
1939 | UNIT(s), | |
1940 | &s->kill_context, | |
1941 | state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM, | |
1942 | s->main_pid, | |
1943 | s->control_pid, | |
1944 | s->main_pid_alien); | |
1945 | if (r < 0) | |
1946 | goto fail; | |
034c6ed7 | 1947 | |
cd2086fe | 1948 | if (r > 0) { |
d568a335 | 1949 | if (s->timeout_stop_usec > 0) { |
718db961 | 1950 | r = service_arm_timer(s, s->timeout_stop_usec); |
d568a335 | 1951 | if (r < 0) |
e558336f | 1952 | goto fail; |
d568a335 | 1953 | } |
d6ea93e3 | 1954 | |
80876c20 LP |
1955 | service_set_state(s, state); |
1956 | } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) | |
f42806df | 1957 | service_enter_stop_post(s, SERVICE_SUCCESS); |
80876c20 | 1958 | else |
f42806df | 1959 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1960 | |
1961 | return; | |
1962 | ||
1963 | fail: | |
66870f90 ZJS |
1964 | log_warning_unit(UNIT(s)->id, |
1965 | "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r)); | |
034c6ed7 | 1966 | |
80876c20 | 1967 | if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) |
f42806df | 1968 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 1969 | else |
f42806df | 1970 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
1971 | } |
1972 | ||
f42806df | 1973 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 1974 | int r; |
5925dd3c | 1975 | |
034c6ed7 LP |
1976 | assert(s); |
1977 | ||
f42806df LP |
1978 | if (f != SERVICE_SUCCESS) |
1979 | s->result = f; | |
034c6ed7 | 1980 | |
5e94833f LP |
1981 | service_unwatch_control_pid(s); |
1982 | ||
117dcc57 ZJS |
1983 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
1984 | if (s->control_command) { | |
867b3b7d LP |
1985 | s->control_command_id = SERVICE_EXEC_STOP; |
1986 | ||
ecedd90f LP |
1987 | r = service_spawn(s, |
1988 | s->control_command, | |
1989 | true, | |
1990 | false, | |
1991 | !s->permissions_start_only, | |
1992 | !s->root_directory_start_only, | |
1993 | false, | |
1994 | false, | |
1995 | true, | |
1996 | &s->control_pid); | |
1997 | if (r < 0) | |
034c6ed7 LP |
1998 | goto fail; |
1999 | ||
80876c20 LP |
2000 | service_set_state(s, SERVICE_STOP); |
2001 | } else | |
f42806df | 2002 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
2003 | |
2004 | return; | |
2005 | ||
2006 | fail: | |
66870f90 ZJS |
2007 | log_warning_unit(UNIT(s)->id, |
2008 | "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2009 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2010 | } |
2011 | ||
f42806df | 2012 | static void service_enter_running(Service *s, ServiceResult f) { |
4eab639f | 2013 | int main_pid_ok, cgroup_ok; |
80876c20 LP |
2014 | assert(s); |
2015 | ||
f42806df LP |
2016 | if (f != SERVICE_SUCCESS) |
2017 | s->result = f; | |
80876c20 | 2018 | |
4eab639f LP |
2019 | main_pid_ok = main_pid_good(s); |
2020 | cgroup_ok = cgroup_good(s); | |
2021 | ||
2022 | if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) && | |
05e343b7 | 2023 | (s->bus_name_good || s->type != SERVICE_DBUS)) |
80876c20 | 2024 | service_set_state(s, SERVICE_RUNNING); |
02ee865a | 2025 | else if (s->remain_after_exit) |
80876c20 LP |
2026 | service_set_state(s, SERVICE_EXITED); |
2027 | else | |
f42806df | 2028 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
2029 | } |
2030 | ||
034c6ed7 LP |
2031 | static void service_enter_start_post(Service *s) { |
2032 | int r; | |
2033 | assert(s); | |
2034 | ||
5e94833f | 2035 | service_unwatch_control_pid(s); |
842129f5 | 2036 | service_reset_watchdog(s); |
bb242b7b | 2037 | |
117dcc57 ZJS |
2038 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
2039 | if (s->control_command) { | |
867b3b7d LP |
2040 | s->control_command_id = SERVICE_EXEC_START_POST; |
2041 | ||
ecedd90f LP |
2042 | r = service_spawn(s, |
2043 | s->control_command, | |
2044 | true, | |
2045 | false, | |
2046 | !s->permissions_start_only, | |
2047 | !s->root_directory_start_only, | |
2048 | false, | |
2049 | false, | |
2050 | true, | |
2051 | &s->control_pid); | |
2052 | if (r < 0) | |
034c6ed7 LP |
2053 | goto fail; |
2054 | ||
80876c20 LP |
2055 | service_set_state(s, SERVICE_START_POST); |
2056 | } else | |
f42806df | 2057 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2058 | |
2059 | return; | |
2060 | ||
2061 | fail: | |
66870f90 ZJS |
2062 | log_warning_unit(UNIT(s)->id, |
2063 | "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2064 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2065 | } |
2066 | ||
4ad49000 LP |
2067 | static void service_kill_control_processes(Service *s) { |
2068 | char *p; | |
2069 | ||
2070 | if (!UNIT(s)->cgroup_path) | |
2071 | return; | |
2072 | ||
2073 | p = strappenda(UNIT(s)->cgroup_path, "/control"); | |
4ad49000 LP |
2074 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL); |
2075 | } | |
2076 | ||
034c6ed7 | 2077 | static void service_enter_start(Service *s) { |
4ad49000 | 2078 | ExecCommand *c; |
034c6ed7 LP |
2079 | pid_t pid; |
2080 | int r; | |
2081 | ||
2082 | assert(s); | |
2083 | ||
2084 | assert(s->exec_command[SERVICE_EXEC_START]); | |
34e9ba66 | 2085 | assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT); |
034c6ed7 | 2086 | |
41efeaec LP |
2087 | service_unwatch_control_pid(s); |
2088 | service_unwatch_main_pid(s); | |
80876c20 | 2089 | |
8f53a7b8 LP |
2090 | /* We want to ensure that nobody leaks processes from |
2091 | * START_PRE here, so let's go on a killing spree, People | |
2092 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 2093 | service_kill_control_processes(s); |
8f53a7b8 | 2094 | |
867b3b7d LP |
2095 | if (s->type == SERVICE_FORKING) { |
2096 | s->control_command_id = SERVICE_EXEC_START; | |
2097 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
2098 | ||
2099 | s->main_command = NULL; | |
2100 | } else { | |
2101 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2102 | s->control_command = NULL; | |
2103 | ||
2104 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
2105 | } | |
34e9ba66 | 2106 | |
ecedd90f LP |
2107 | r = service_spawn(s, |
2108 | c, | |
117dcc57 ZJS |
2109 | s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || |
2110 | s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT, | |
ecedd90f LP |
2111 | true, |
2112 | true, | |
2113 | true, | |
2114 | true, | |
2115 | s->notify_access != NOTIFY_NONE, | |
2116 | false, | |
2117 | &pid); | |
2118 | if (r < 0) | |
034c6ed7 LP |
2119 | goto fail; |
2120 | ||
f2b68789 | 2121 | if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) { |
034c6ed7 LP |
2122 | /* For simple services we immediately start |
2123 | * the START_POST binaries. */ | |
2124 | ||
5925dd3c | 2125 | service_set_main_pid(s, pid); |
034c6ed7 LP |
2126 | service_enter_start_post(s); |
2127 | ||
2128 | } else if (s->type == SERVICE_FORKING) { | |
2129 | ||
2130 | /* For forking services we wait until the start | |
2131 | * process exited. */ | |
2132 | ||
e55224ca | 2133 | s->control_pid = pid; |
80876c20 LP |
2134 | service_set_state(s, SERVICE_START); |
2135 | ||
34e9ba66 | 2136 | } else if (s->type == SERVICE_ONESHOT || |
8c47c732 LP |
2137 | s->type == SERVICE_DBUS || |
2138 | s->type == SERVICE_NOTIFY) { | |
7d55e835 | 2139 | |
34e9ba66 | 2140 | /* For oneshot services we wait until the start |
7d55e835 LP |
2141 | * process exited, too, but it is our main process. */ |
2142 | ||
05e343b7 | 2143 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
2144 | * but wait for the bus name to appear on the |
2145 | * bus. Notify services are similar. */ | |
05e343b7 | 2146 | |
5925dd3c | 2147 | service_set_main_pid(s, pid); |
80876c20 | 2148 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
2149 | } else |
2150 | assert_not_reached("Unknown service type"); | |
2151 | ||
2152 | return; | |
2153 | ||
2154 | fail: | |
66870f90 ZJS |
2155 | log_warning_unit(UNIT(s)->id, |
2156 | "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2157 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2158 | } |
2159 | ||
2160 | static void service_enter_start_pre(Service *s) { | |
2161 | int r; | |
2162 | ||
2163 | assert(s); | |
2164 | ||
5e94833f LP |
2165 | service_unwatch_control_pid(s); |
2166 | ||
117dcc57 ZJS |
2167 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
2168 | if (s->control_command) { | |
8f53a7b8 LP |
2169 | /* Before we start anything, let's clear up what might |
2170 | * be left from previous runs. */ | |
4ad49000 | 2171 | service_kill_control_processes(s); |
8f53a7b8 | 2172 | |
867b3b7d LP |
2173 | s->control_command_id = SERVICE_EXEC_START_PRE; |
2174 | ||
ecedd90f LP |
2175 | r = service_spawn(s, |
2176 | s->control_command, | |
2177 | true, | |
2178 | false, | |
2179 | !s->permissions_start_only, | |
2180 | !s->root_directory_start_only, | |
2181 | true, | |
2182 | false, | |
2183 | true, | |
2184 | &s->control_pid); | |
2185 | if (r < 0) | |
034c6ed7 LP |
2186 | goto fail; |
2187 | ||
80876c20 LP |
2188 | service_set_state(s, SERVICE_START_PRE); |
2189 | } else | |
034c6ed7 LP |
2190 | service_enter_start(s); |
2191 | ||
2192 | return; | |
2193 | ||
2194 | fail: | |
66870f90 ZJS |
2195 | log_warning_unit(UNIT(s)->id, |
2196 | "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2197 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2198 | } |
2199 | ||
2200 | static void service_enter_restart(Service *s) { | |
718db961 | 2201 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 2202 | int r; |
398ef8ba | 2203 | |
034c6ed7 LP |
2204 | assert(s); |
2205 | ||
a8bb2e65 LP |
2206 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
2207 | /* Don't restart things if we are going down anyway */ | |
66870f90 ZJS |
2208 | log_info_unit(UNIT(s)->id, |
2209 | "Stop job pending for unit, delaying automatic restart."); | |
2edfa366 | 2210 | |
718db961 | 2211 | r = service_arm_timer(s, s->restart_usec); |
a8bb2e65 | 2212 | if (r < 0) |
2edfa366 | 2213 | goto fail; |
feae8adb DW |
2214 | |
2215 | return; | |
2edfa366 LP |
2216 | } |
2217 | ||
48bb5876 DW |
2218 | /* Any units that are bound to this service must also be |
2219 | * restarted. We use JOB_RESTART (instead of the more obvious | |
2220 | * JOB_START) here so that those dependency jobs will be added | |
2221 | * as well. */ | |
2222 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL); | |
2223 | if (r < 0) | |
034c6ed7 LP |
2224 | goto fail; |
2225 | ||
a8bb2e65 LP |
2226 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
2227 | * it will be canceled as part of the service_stop() call that | |
2228 | * is executed as part of JOB_RESTART. */ | |
2229 | ||
66870f90 ZJS |
2230 | log_debug_unit(UNIT(s)->id, |
2231 | "%s scheduled restart job.", UNIT(s)->id); | |
034c6ed7 LP |
2232 | return; |
2233 | ||
2234 | fail: | |
66870f90 ZJS |
2235 | log_warning_unit(UNIT(s)->id, |
2236 | "%s failed to schedule restart job: %s", | |
718db961 | 2237 | UNIT(s)->id, bus_error_message(&error, -r)); |
f42806df | 2238 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
2239 | } |
2240 | ||
2241 | static void service_enter_reload(Service *s) { | |
2242 | int r; | |
2243 | ||
2244 | assert(s); | |
2245 | ||
5e94833f LP |
2246 | service_unwatch_control_pid(s); |
2247 | ||
117dcc57 ZJS |
2248 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
2249 | if (s->control_command) { | |
867b3b7d LP |
2250 | s->control_command_id = SERVICE_EXEC_RELOAD; |
2251 | ||
ecedd90f LP |
2252 | r = service_spawn(s, |
2253 | s->control_command, | |
2254 | true, | |
2255 | false, | |
2256 | !s->permissions_start_only, | |
2257 | !s->root_directory_start_only, | |
2258 | false, | |
2259 | false, | |
2260 | true, | |
2261 | &s->control_pid); | |
2262 | if (r < 0) | |
034c6ed7 LP |
2263 | goto fail; |
2264 | ||
80876c20 LP |
2265 | service_set_state(s, SERVICE_RELOAD); |
2266 | } else | |
f42806df | 2267 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2268 | |
2269 | return; | |
2270 | ||
2271 | fail: | |
66870f90 ZJS |
2272 | log_warning_unit(UNIT(s)->id, |
2273 | "%s failed to run 'reload' task: %s", | |
2274 | UNIT(s)->id, strerror(-r)); | |
f42806df LP |
2275 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2276 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2277 | } |
2278 | ||
f42806df | 2279 | static void service_run_next_control(Service *s) { |
034c6ed7 LP |
2280 | int r; |
2281 | ||
2282 | assert(s); | |
2283 | assert(s->control_command); | |
2284 | assert(s->control_command->command_next); | |
2285 | ||
34e9ba66 | 2286 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2287 | |
34e9ba66 | 2288 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2289 | service_unwatch_control_pid(s); |
2290 | ||
ecedd90f LP |
2291 | r = service_spawn(s, |
2292 | s->control_command, | |
2293 | true, | |
2294 | false, | |
2295 | !s->permissions_start_only, | |
2296 | !s->root_directory_start_only, | |
2297 | s->control_command_id == SERVICE_EXEC_START_PRE || | |
2298 | s->control_command_id == SERVICE_EXEC_STOP_POST, | |
2299 | false, | |
2300 | true, | |
2301 | &s->control_pid); | |
2302 | if (r < 0) | |
034c6ed7 LP |
2303 | goto fail; |
2304 | ||
2305 | return; | |
2306 | ||
2307 | fail: | |
66870f90 ZJS |
2308 | log_warning_unit(UNIT(s)->id, |
2309 | "%s failed to run next control task: %s", | |
2310 | UNIT(s)->id, strerror(-r)); | |
034c6ed7 | 2311 | |
80876c20 | 2312 | if (s->state == SERVICE_START_PRE) |
f42806df | 2313 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
80876c20 | 2314 | else if (s->state == SERVICE_STOP) |
f42806df | 2315 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2316 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2317 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2318 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2319 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2320 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2321 | } else |
f42806df | 2322 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2323 | } |
2324 | ||
f42806df | 2325 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2326 | pid_t pid; |
2327 | int r; | |
2328 | ||
2329 | assert(s); | |
867b3b7d LP |
2330 | assert(s->main_command); |
2331 | assert(s->main_command->command_next); | |
2332 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2333 | |
867b3b7d | 2334 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2335 | service_unwatch_main_pid(s); |
2336 | ||
ecedd90f LP |
2337 | r = service_spawn(s, |
2338 | s->main_command, | |
98709151 | 2339 | true, |
ecedd90f LP |
2340 | true, |
2341 | true, | |
2342 | true, | |
2343 | true, | |
2344 | s->notify_access != NOTIFY_NONE, | |
2345 | false, | |
2346 | &pid); | |
2347 | if (r < 0) | |
34e9ba66 LP |
2348 | goto fail; |
2349 | ||
2350 | service_set_main_pid(s, pid); | |
2351 | ||
2352 | return; | |
2353 | ||
2354 | fail: | |
66870f90 ZJS |
2355 | log_warning_unit(UNIT(s)->id, |
2356 | "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2357 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2358 | } |
2359 | ||
4b939747 MO |
2360 | static int service_start_limit_test(Service *s) { |
2361 | assert(s); | |
2362 | ||
2363 | if (ratelimit_test(&s->start_limit)) | |
2364 | return 0; | |
2365 | ||
2366 | switch (s->start_limit_action) { | |
2367 | ||
2368 | case SERVICE_START_LIMIT_NONE: | |
66870f90 ZJS |
2369 | log_warning_unit(UNIT(s)->id, |
2370 | "%s start request repeated too quickly, refusing to start.", | |
2371 | UNIT(s)->id); | |
4b939747 MO |
2372 | break; |
2373 | ||
2374 | case SERVICE_START_LIMIT_REBOOT: { | |
718db961 | 2375 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
4b939747 MO |
2376 | int r; |
2377 | ||
66870f90 ZJS |
2378 | log_warning_unit(UNIT(s)->id, |
2379 | "%s start request repeated too quickly, rebooting.", UNIT(s)->id); | |
4b939747 | 2380 | |
117dcc57 ZJS |
2381 | r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, |
2382 | SPECIAL_REBOOT_TARGET, JOB_REPLACE, | |
2383 | true, &error, NULL); | |
718db961 | 2384 | if (r < 0) |
66870f90 | 2385 | log_error_unit(UNIT(s)->id, |
718db961 | 2386 | "Failed to reboot: %s.", bus_error_message(&error, r)); |
4b939747 MO |
2387 | |
2388 | break; | |
2389 | } | |
2390 | ||
2391 | case SERVICE_START_LIMIT_REBOOT_FORCE: | |
66870f90 ZJS |
2392 | log_warning_unit(UNIT(s)->id, |
2393 | "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id); | |
4b939747 MO |
2394 | UNIT(s)->manager->exit_code = MANAGER_REBOOT; |
2395 | break; | |
2396 | ||
2397 | case SERVICE_START_LIMIT_REBOOT_IMMEDIATE: | |
66870f90 ZJS |
2398 | log_warning_unit(UNIT(s)->id, |
2399 | "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id); | |
0049f05a | 2400 | sync(); |
4b939747 MO |
2401 | reboot(RB_AUTOBOOT); |
2402 | break; | |
2403 | ||
2404 | default: | |
66870f90 ZJS |
2405 | log_error_unit(UNIT(s)->id, |
2406 | "start limit action=%i", s->start_limit_action); | |
4b939747 MO |
2407 | assert_not_reached("Unknown StartLimitAction."); |
2408 | } | |
2409 | ||
2410 | return -ECANCELED; | |
2411 | } | |
2412 | ||
87f0e418 LP |
2413 | static int service_start(Unit *u) { |
2414 | Service *s = SERVICE(u); | |
4b939747 | 2415 | int r; |
5cb5a6ff LP |
2416 | |
2417 | assert(s); | |
2418 | ||
034c6ed7 LP |
2419 | /* We cannot fulfill this request right now, try again later |
2420 | * please! */ | |
2421 | if (s->state == SERVICE_STOP || | |
2422 | s->state == SERVICE_STOP_SIGTERM || | |
2423 | s->state == SERVICE_STOP_SIGKILL || | |
2424 | s->state == SERVICE_STOP_POST || | |
2425 | s->state == SERVICE_FINAL_SIGTERM || | |
2426 | s->state == SERVICE_FINAL_SIGKILL) | |
5cb5a6ff LP |
2427 | return -EAGAIN; |
2428 | ||
034c6ed7 LP |
2429 | /* Already on it! */ |
2430 | if (s->state == SERVICE_START_PRE || | |
2431 | s->state == SERVICE_START || | |
2432 | s->state == SERVICE_START_POST) | |
2433 | return 0; | |
2434 | ||
2e9d6c12 | 2435 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2436 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2437 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2438 | * service should be manually restarted, not started. We |
2439 | * simply return EAGAIN here, so that any start jobs stay | |
2440 | * queued, and assume that the auto restart timer will | |
2441 | * eventually trigger the restart. */ | |
2442 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2443 | return -EAGAIN; |
2e9d6c12 DW |
2444 | |
2445 | assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED); | |
5cb5a6ff | 2446 | |
1e2e8133 | 2447 | /* Make sure we don't enter a busy loop of some kind. */ |
4b939747 | 2448 | r = service_start_limit_test(s); |
c2f34808 | 2449 | if (r < 0) { |
8d1b002a | 2450 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false); |
4b939747 | 2451 | return r; |
c2f34808 | 2452 | } |
1e2e8133 | 2453 | |
f42806df LP |
2454 | s->result = SERVICE_SUCCESS; |
2455 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2456 | s->main_pid_known = false; |
6dfa5494 | 2457 | s->main_pid_alien = false; |
47342320 | 2458 | s->forbid_restart = false; |
034c6ed7 LP |
2459 | |
2460 | service_enter_start_pre(s); | |
2461 | return 0; | |
5cb5a6ff LP |
2462 | } |
2463 | ||
87f0e418 LP |
2464 | static int service_stop(Unit *u) { |
2465 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2466 | |
2467 | assert(s); | |
2468 | ||
f0c7b229 | 2469 | /* Don't create restart jobs from here. */ |
47342320 | 2470 | s->forbid_restart = true; |
034c6ed7 | 2471 | |
e537352b LP |
2472 | /* Already on it */ |
2473 | if (s->state == SERVICE_STOP || | |
2474 | s->state == SERVICE_STOP_SIGTERM || | |
2475 | s->state == SERVICE_STOP_SIGKILL || | |
2476 | s->state == SERVICE_STOP_POST || | |
2477 | s->state == SERVICE_FINAL_SIGTERM || | |
2478 | s->state == SERVICE_FINAL_SIGKILL) | |
2479 | return 0; | |
2480 | ||
f0c7b229 | 2481 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2482 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2483 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2484 | return 0; |
2485 | } | |
2486 | ||
3f6c78dc LP |
2487 | /* If there's already something running we go directly into |
2488 | * kill mode. */ | |
2489 | if (s->state == SERVICE_START_PRE || | |
2490 | s->state == SERVICE_START || | |
2491 | s->state == SERVICE_START_POST || | |
2492 | s->state == SERVICE_RELOAD) { | |
f42806df | 2493 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2494 | return 0; |
2495 | } | |
5cb5a6ff | 2496 | |
3f6c78dc LP |
2497 | assert(s->state == SERVICE_RUNNING || |
2498 | s->state == SERVICE_EXITED); | |
3a762661 | 2499 | |
f42806df | 2500 | service_enter_stop(s, SERVICE_SUCCESS); |
5cb5a6ff LP |
2501 | return 0; |
2502 | } | |
2503 | ||
87f0e418 LP |
2504 | static int service_reload(Unit *u) { |
2505 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2506 | |
2507 | assert(s); | |
2508 | ||
80876c20 | 2509 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
2510 | |
2511 | service_enter_reload(s); | |
5cb5a6ff LP |
2512 | return 0; |
2513 | } | |
2514 | ||
44a6b1b6 | 2515 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2516 | Service *s = SERVICE(u); |
034c6ed7 LP |
2517 | |
2518 | assert(s); | |
2519 | ||
2520 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2521 | } | |
2522 | ||
a16e1123 LP |
2523 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2524 | Service *s = SERVICE(u); | |
2525 | ||
2526 | assert(u); | |
2527 | assert(f); | |
2528 | assert(fds); | |
2529 | ||
2530 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
2531 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
2532 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2533 | |
2534 | if (s->control_pid > 0) | |
ccd06097 ZJS |
2535 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, |
2536 | s->control_pid); | |
a16e1123 | 2537 | |
5925dd3c | 2538 | if (s->main_pid_known && s->main_pid > 0) |
ccd06097 | 2539 | unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid); |
a16e1123 LP |
2540 | |
2541 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
2542 | ||
3a2776bc LP |
2543 | if (s->status_text) |
2544 | unit_serialize_item(u, f, "status-text", s->status_text); | |
2545 | ||
cfc4eb4c LP |
2546 | /* FIXME: There's a minor uncleanliness here: if there are |
2547 | * multiple commands attached here, we will start from the | |
2548 | * first one again */ | |
a16e1123 | 2549 | if (s->control_command_id >= 0) |
117dcc57 ZJS |
2550 | unit_serialize_item(u, f, "control-command", |
2551 | service_exec_command_to_string(s->control_command_id)); | |
a16e1123 LP |
2552 | |
2553 | if (s->socket_fd >= 0) { | |
2554 | int copy; | |
2555 | ||
2556 | if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0) | |
2557 | return copy; | |
2558 | ||
2559 | unit_serialize_item_format(u, f, "socket-fd", "%i", copy); | |
2560 | } | |
2561 | ||
ecdbca40 | 2562 | if (s->main_exec_status.pid > 0) { |
ccd06097 ZJS |
2563 | unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT, |
2564 | s->main_exec_status.pid); | |
117dcc57 ZJS |
2565 | dual_timestamp_serialize(f, "main-exec-status-start", |
2566 | &s->main_exec_status.start_timestamp); | |
2567 | dual_timestamp_serialize(f, "main-exec-status-exit", | |
2568 | &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2569 | |
799fd0fd | 2570 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
117dcc57 ZJS |
2571 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", |
2572 | s->main_exec_status.code); | |
2573 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", | |
2574 | s->main_exec_status.status); | |
ecdbca40 LP |
2575 | } |
2576 | } | |
a6927d7f | 2577 | if (dual_timestamp_is_set(&s->watchdog_timestamp)) |
842129f5 | 2578 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); |
ecdbca40 | 2579 | |
6aca9a58 | 2580 | if (s->forbid_restart) |
8d1a2802 | 2581 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 2582 | |
a16e1123 LP |
2583 | return 0; |
2584 | } | |
2585 | ||
2586 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
2587 | Service *s = SERVICE(u); | |
a16e1123 LP |
2588 | |
2589 | assert(u); | |
2590 | assert(key); | |
2591 | assert(value); | |
2592 | assert(fds); | |
2593 | ||
2594 | if (streq(key, "state")) { | |
2595 | ServiceState state; | |
2596 | ||
117dcc57 ZJS |
2597 | state = service_state_from_string(value); |
2598 | if (state < 0) | |
66870f90 | 2599 | log_debug_unit(u->id, "Failed to parse state value %s", value); |
a16e1123 LP |
2600 | else |
2601 | s->deserialized_state = state; | |
f42806df LP |
2602 | } else if (streq(key, "result")) { |
2603 | ServiceResult f; | |
2604 | ||
2605 | f = service_result_from_string(value); | |
2606 | if (f < 0) | |
66870f90 | 2607 | log_debug_unit(u->id, "Failed to parse result value %s", value); |
f42806df LP |
2608 | else if (f != SERVICE_SUCCESS) |
2609 | s->result = f; | |
2610 | ||
2611 | } else if (streq(key, "reload-result")) { | |
2612 | ServiceResult f; | |
2613 | ||
2614 | f = service_result_from_string(value); | |
2615 | if (f < 0) | |
66870f90 | 2616 | log_debug_unit(u->id, "Failed to parse reload result value %s", value); |
f42806df LP |
2617 | else if (f != SERVICE_SUCCESS) |
2618 | s->reload_result = f; | |
a16e1123 | 2619 | |
a16e1123 | 2620 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2621 | pid_t pid; |
a16e1123 | 2622 | |
e364ad06 | 2623 | if (parse_pid(value, &pid) < 0) |
66870f90 | 2624 | log_debug_unit(u->id, "Failed to parse control-pid value %s", value); |
a16e1123 | 2625 | else |
e55224ca | 2626 | s->control_pid = pid; |
a16e1123 | 2627 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2628 | pid_t pid; |
a16e1123 | 2629 | |
e364ad06 | 2630 | if (parse_pid(value, &pid) < 0) |
66870f90 | 2631 | log_debug_unit(u->id, "Failed to parse main-pid value %s", value); |
7400b9d2 LP |
2632 | else { |
2633 | service_set_main_pid(s, pid); | |
2634 | unit_watch_pid(UNIT(s), pid); | |
2635 | } | |
a16e1123 LP |
2636 | } else if (streq(key, "main-pid-known")) { |
2637 | int b; | |
2638 | ||
117dcc57 ZJS |
2639 | b = parse_boolean(value); |
2640 | if (b < 0) | |
66870f90 | 2641 | log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value); |
a16e1123 LP |
2642 | else |
2643 | s->main_pid_known = b; | |
3a2776bc LP |
2644 | } else if (streq(key, "status-text")) { |
2645 | char *t; | |
2646 | ||
117dcc57 ZJS |
2647 | t = strdup(value); |
2648 | if (!t) | |
2649 | log_oom(); | |
2650 | else { | |
3a2776bc LP |
2651 | free(s->status_text); |
2652 | s->status_text = t; | |
2653 | } | |
2654 | ||
a16e1123 LP |
2655 | } else if (streq(key, "control-command")) { |
2656 | ServiceExecCommand id; | |
2657 | ||
117dcc57 ZJS |
2658 | id = service_exec_command_from_string(value); |
2659 | if (id < 0) | |
66870f90 | 2660 | log_debug_unit(u->id, "Failed to parse exec-command value %s", value); |
a16e1123 LP |
2661 | else { |
2662 | s->control_command_id = id; | |
2663 | s->control_command = s->exec_command[id]; | |
2664 | } | |
2665 | } else if (streq(key, "socket-fd")) { | |
2666 | int fd; | |
2667 | ||
2668 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
66870f90 | 2669 | log_debug_unit(u->id, "Failed to parse socket-fd value %s", value); |
a16e1123 LP |
2670 | else { |
2671 | ||
2672 | if (s->socket_fd >= 0) | |
2673 | close_nointr_nofail(s->socket_fd); | |
2674 | s->socket_fd = fdset_remove(fds, fd); | |
2675 | } | |
ecdbca40 LP |
2676 | } else if (streq(key, "main-exec-status-pid")) { |
2677 | pid_t pid; | |
2678 | ||
e364ad06 | 2679 | if (parse_pid(value, &pid) < 0) |
66870f90 | 2680 | log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value); |
ecdbca40 LP |
2681 | else |
2682 | s->main_exec_status.pid = pid; | |
2683 | } else if (streq(key, "main-exec-status-code")) { | |
2684 | int i; | |
2685 | ||
e364ad06 | 2686 | if (safe_atoi(value, &i) < 0) |
66870f90 | 2687 | log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value); |
ecdbca40 LP |
2688 | else |
2689 | s->main_exec_status.code = i; | |
2690 | } else if (streq(key, "main-exec-status-status")) { | |
2691 | int i; | |
2692 | ||
e364ad06 | 2693 | if (safe_atoi(value, &i) < 0) |
66870f90 | 2694 | log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value); |
ecdbca40 LP |
2695 | else |
2696 | s->main_exec_status.status = i; | |
799fd0fd LP |
2697 | } else if (streq(key, "main-exec-status-start")) |
2698 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
2699 | else if (streq(key, "main-exec-status-exit")) | |
2700 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
2701 | else if (streq(key, "watchdog-timestamp")) |
2702 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 2703 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2704 | int b; |
2705 | ||
2706 | b = parse_boolean(value); | |
2707 | if (b < 0) | |
8d1a2802 | 2708 | log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value); |
6aca9a58 SE |
2709 | else |
2710 | s->forbid_restart = b; | |
c17ec25e | 2711 | } else |
66870f90 | 2712 | log_debug_unit(u->id, "Unknown serialization key '%s'", key); |
a16e1123 LP |
2713 | |
2714 | return 0; | |
2715 | } | |
2716 | ||
44a6b1b6 | 2717 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
2718 | const UnitActiveState *table; |
2719 | ||
87f0e418 | 2720 | assert(u); |
5cb5a6ff | 2721 | |
e056b01d LP |
2722 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
2723 | ||
2724 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
2725 | } |
2726 | ||
10a94420 LP |
2727 | static const char *service_sub_state_to_string(Unit *u) { |
2728 | assert(u); | |
2729 | ||
2730 | return service_state_to_string(SERVICE(u)->state); | |
2731 | } | |
2732 | ||
701cc384 LP |
2733 | static bool service_check_gc(Unit *u) { |
2734 | Service *s = SERVICE(u); | |
2735 | ||
2736 | assert(s); | |
2737 | ||
6d55002a LP |
2738 | /* Never clean up services that still have a process around, |
2739 | * even if the service is formally dead. */ | |
2740 | if (cgroup_good(s) > 0 || | |
2741 | main_pid_good(s) > 0 || | |
2742 | control_pid_good(s) > 0) | |
2743 | return true; | |
2744 | ||
2745 | #ifdef HAVE_SYSV_COMPAT | |
1b64d026 | 2746 | if (s->is_sysv) |
6d55002a | 2747 | return true; |
07459bb6 | 2748 | #endif |
701cc384 | 2749 | |
6d55002a LP |
2750 | return false; |
2751 | } | |
2752 | ||
44a6b1b6 | 2753 | _pure_ static bool service_check_snapshot(Unit *u) { |
701cc384 LP |
2754 | Service *s = SERVICE(u); |
2755 | ||
2756 | assert(s); | |
2757 | ||
99f37ad8 | 2758 | return (s->socket_fd < 0); |
701cc384 LP |
2759 | } |
2760 | ||
3a111838 MS |
2761 | static int service_retry_pid_file(Service *s) { |
2762 | int r; | |
2763 | ||
2764 | assert(s->pid_file); | |
2765 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2766 | ||
2767 | r = service_load_pid_file(s, false); | |
2768 | if (r < 0) | |
2769 | return r; | |
2770 | ||
2771 | service_unwatch_pid_file(s); | |
2772 | ||
f42806df | 2773 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
2774 | return 0; |
2775 | } | |
2776 | ||
2777 | static int service_watch_pid_file(Service *s) { | |
2778 | int r; | |
2779 | ||
66870f90 ZJS |
2780 | log_debug_unit(UNIT(s)->id, |
2781 | "Setting watch for %s's PID file %s", | |
2782 | UNIT(s)->id, s->pid_file_pathspec->path); | |
718db961 | 2783 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
2784 | if (r < 0) |
2785 | goto fail; | |
2786 | ||
2787 | /* the pidfile might have appeared just before we set the watch */ | |
bc41f93e ZJS |
2788 | log_debug_unit(UNIT(s)->id, |
2789 | "Trying to read %s's PID file %s in case it changed", | |
2790 | UNIT(s)->id, s->pid_file_pathspec->path); | |
3a111838 MS |
2791 | service_retry_pid_file(s); |
2792 | ||
2793 | return 0; | |
2794 | fail: | |
66870f90 ZJS |
2795 | log_error_unit(UNIT(s)->id, |
2796 | "Failed to set a watch for %s's PID file %s: %s", | |
2797 | UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r)); | |
3a111838 MS |
2798 | service_unwatch_pid_file(s); |
2799 | return r; | |
2800 | } | |
2801 | ||
2802 | static int service_demand_pid_file(Service *s) { | |
2803 | PathSpec *ps; | |
2804 | ||
2805 | assert(s->pid_file); | |
2806 | assert(!s->pid_file_pathspec); | |
2807 | ||
2808 | ps = new0(PathSpec, 1); | |
2809 | if (!ps) | |
2810 | return -ENOMEM; | |
2811 | ||
718db961 | 2812 | ps->unit = UNIT(s); |
3a111838 MS |
2813 | ps->path = strdup(s->pid_file); |
2814 | if (!ps->path) { | |
2815 | free(ps); | |
2816 | return -ENOMEM; | |
2817 | } | |
2818 | ||
2819 | path_kill_slashes(ps->path); | |
2820 | ||
2821 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2822 | * keep their PID file open all the time. */ | |
2823 | ps->type = PATH_MODIFIED; | |
2824 | ps->inotify_fd = -1; | |
2825 | ||
2826 | s->pid_file_pathspec = ps; | |
2827 | ||
2828 | return service_watch_pid_file(s); | |
2829 | } | |
2830 | ||
718db961 | 2831 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2832 | PathSpec *p = userdata; |
2833 | Service *s; | |
2834 | ||
2835 | assert(p); | |
2836 | ||
2837 | s = SERVICE(p->unit); | |
3a111838 MS |
2838 | |
2839 | assert(s); | |
2840 | assert(fd >= 0); | |
2841 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2842 | assert(s->pid_file_pathspec); | |
57020a3a | 2843 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2844 | |
718db961 | 2845 | log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id); |
3a111838 | 2846 | |
e14c2802 | 2847 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2848 | goto fail; |
2849 | ||
2850 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2851 | return 0; |
3a111838 MS |
2852 | |
2853 | if (service_watch_pid_file(s) < 0) | |
2854 | goto fail; | |
2855 | ||
718db961 LP |
2856 | return 0; |
2857 | ||
3a111838 MS |
2858 | fail: |
2859 | service_unwatch_pid_file(s); | |
f42806df | 2860 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2861 | return 0; |
3a111838 MS |
2862 | } |
2863 | ||
87f0e418 LP |
2864 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2865 | Service *s = SERVICE(u); | |
f42806df | 2866 | ServiceResult f; |
5cb5a6ff LP |
2867 | |
2868 | assert(s); | |
034c6ed7 LP |
2869 | assert(pid >= 0); |
2870 | ||
96342de6 LN |
2871 | if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) : |
2872 | is_clean_exit_lsb(code, status, &s->success_status)) | |
f42806df LP |
2873 | f = SERVICE_SUCCESS; |
2874 | else if (code == CLD_EXITED) | |
2875 | f = SERVICE_FAILURE_EXIT_CODE; | |
2876 | else if (code == CLD_KILLED) | |
2877 | f = SERVICE_FAILURE_SIGNAL; | |
2878 | else if (code == CLD_DUMPED) | |
2879 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2880 | else |
cfc4eb4c | 2881 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2882 | |
2883 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2884 | /* Forking services may occasionally move to a new PID. |
2885 | * As long as they update the PID file before exiting the old | |
2886 | * PID, they're fine. */ | |
5375410b | 2887 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2888 | return; |
034c6ed7 | 2889 | |
034c6ed7 | 2890 | s->main_pid = 0; |
6ea832a2 | 2891 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2892 | |
867b3b7d | 2893 | if (s->main_command) { |
fbeefb45 LP |
2894 | /* If this is not a forking service than the |
2895 | * main process got started and hence we copy | |
2896 | * the exit status so that it is recorded both | |
2897 | * as main and as control process exit | |
2898 | * status */ | |
2899 | ||
867b3b7d | 2900 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2901 | |
867b3b7d | 2902 | if (s->main_command->ignore) |
f42806df | 2903 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2904 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2905 | ||
2906 | /* If this is a forked process, then we should | |
2907 | * ignore the return value if this was | |
2908 | * configured for the starter process */ | |
2909 | ||
2910 | if (s->exec_command[SERVICE_EXEC_START]->ignore) | |
2911 | f = SERVICE_SUCCESS; | |
034c6ed7 LP |
2912 | } |
2913 | ||
bbc9006e MT |
2914 | log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, |
2915 | u->id, | |
23635a85 ZJS |
2916 | "MESSAGE=%s: main process exited, code=%s, status=%i/%s", |
2917 | u->id, sigchld_code_to_string(code), status, | |
2918 | strna(code == CLD_EXITED | |
2919 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2920 | : signal_to_string(status)), | |
23635a85 ZJS |
2921 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2922 | "EXIT_STATUS=%i", status, | |
2923 | NULL); | |
f42806df LP |
2924 | |
2925 | if (f != SERVICE_SUCCESS) | |
2926 | s->result = f; | |
034c6ed7 | 2927 | |
867b3b7d LP |
2928 | if (s->main_command && |
2929 | s->main_command->command_next && | |
f42806df | 2930 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2931 | |
34e9ba66 LP |
2932 | /* There is another command to * |
2933 | * execute, so let's do that. */ | |
034c6ed7 | 2934 | |
66870f90 ZJS |
2935 | log_debug_unit(u->id, |
2936 | "%s running next main command for state %s", | |
2937 | u->id, service_state_to_string(s->state)); | |
f42806df | 2938 | service_run_next_main(s); |
034c6ed7 | 2939 | |
34e9ba66 LP |
2940 | } else { |
2941 | ||
2942 | /* The service exited, so the service is officially | |
2943 | * gone. */ | |
867b3b7d | 2944 | s->main_command = NULL; |
34e9ba66 LP |
2945 | |
2946 | switch (s->state) { | |
2947 | ||
2948 | case SERVICE_START_POST: | |
2949 | case SERVICE_RELOAD: | |
2950 | case SERVICE_STOP: | |
2951 | /* Need to wait until the operation is | |
2952 | * done */ | |
c4653a4d | 2953 | break; |
7d55e835 | 2954 | |
34e9ba66 LP |
2955 | case SERVICE_START: |
2956 | if (s->type == SERVICE_ONESHOT) { | |
2957 | /* This was our main goal, so let's go on */ | |
f42806df | 2958 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2959 | service_enter_start_post(s); |
2960 | else | |
f42806df | 2961 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
34e9ba66 | 2962 | break; |
34e9ba66 | 2963 | } |
034c6ed7 | 2964 | |
bfba3256 LP |
2965 | /* Fall through */ |
2966 | ||
34e9ba66 | 2967 | case SERVICE_RUNNING: |
f42806df | 2968 | service_enter_running(s, f); |
34e9ba66 | 2969 | break; |
034c6ed7 | 2970 | |
34e9ba66 LP |
2971 | case SERVICE_STOP_SIGTERM: |
2972 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 2973 | |
34e9ba66 | 2974 | if (!control_pid_good(s)) |
f42806df | 2975 | service_enter_stop_post(s, f); |
5cb5a6ff | 2976 | |
34e9ba66 LP |
2977 | /* If there is still a control process, wait for that first */ |
2978 | break; | |
2979 | ||
bf108e55 LP |
2980 | case SERVICE_STOP_POST: |
2981 | case SERVICE_FINAL_SIGTERM: | |
2982 | case SERVICE_FINAL_SIGKILL: | |
2983 | ||
2984 | if (!control_pid_good(s)) | |
2985 | service_enter_dead(s, f, true); | |
2986 | break; | |
2987 | ||
34e9ba66 LP |
2988 | default: |
2989 | assert_not_reached("Uh, main process died at wrong time."); | |
2990 | } | |
034c6ed7 | 2991 | } |
5cb5a6ff | 2992 | |
034c6ed7 | 2993 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
2994 | s->control_pid = 0; |
2995 | ||
b708e7ce | 2996 | if (s->control_command) { |
117dcc57 ZJS |
2997 | exec_status_exit(&s->control_command->exec_status, |
2998 | &s->exec_context, pid, code, status); | |
a16e1123 | 2999 | |
b708e7ce | 3000 | if (s->control_command->ignore) |
f42806df | 3001 | f = SERVICE_SUCCESS; |
b708e7ce LP |
3002 | } |
3003 | ||
66870f90 ZJS |
3004 | log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id, |
3005 | "%s: control process exited, code=%s status=%i", | |
3006 | u->id, sigchld_code_to_string(code), status); | |
f42806df LP |
3007 | |
3008 | if (f != SERVICE_SUCCESS) | |
3009 | s->result = f; | |
034c6ed7 | 3010 | |
88f3e0c9 LP |
3011 | /* Immediately get rid of the cgroup, so that the |
3012 | * kernel doesn't delay the cgroup empty messages for | |
3013 | * the service cgroup any longer than necessary */ | |
4ad49000 | 3014 | service_kill_control_processes(s); |
88f3e0c9 | 3015 | |
34e9ba66 LP |
3016 | if (s->control_command && |
3017 | s->control_command->command_next && | |
f42806df | 3018 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3019 | |
3020 | /* There is another command to * | |
3021 | * execute, so let's do that. */ | |
3022 | ||
66870f90 ZJS |
3023 | log_debug_unit(u->id, |
3024 | "%s running next control command for state %s", | |
3025 | u->id, service_state_to_string(s->state)); | |
f42806df | 3026 | service_run_next_control(s); |
034c6ed7 | 3027 | |
80876c20 | 3028 | } else { |
034c6ed7 LP |
3029 | /* No further commands for this step, so let's |
3030 | * figure out what to do next */ | |
3031 | ||
a16e1123 LP |
3032 | s->control_command = NULL; |
3033 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3034 | ||
66870f90 ZJS |
3035 | log_debug_unit(u->id, |
3036 | "%s got final SIGCHLD for state %s", | |
3037 | u->id, service_state_to_string(s->state)); | |
bd982a8b | 3038 | |
034c6ed7 LP |
3039 | switch (s->state) { |
3040 | ||
3041 | case SERVICE_START_PRE: | |
f42806df | 3042 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3043 | service_enter_start(s); |
3044 | else | |
f42806df | 3045 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
034c6ed7 LP |
3046 | break; |
3047 | ||
3048 | case SERVICE_START: | |
bfba3256 LP |
3049 | if (s->type != SERVICE_FORKING) |
3050 | /* Maybe spurious event due to a reload that changed the type? */ | |
3051 | break; | |
034c6ed7 | 3052 | |
f42806df LP |
3053 | if (f != SERVICE_SUCCESS) { |
3054 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3a111838 MS |
3055 | break; |
3056 | } | |
034c6ed7 | 3057 | |
3a111838 | 3058 | if (s->pid_file) { |
f42806df LP |
3059 | bool has_start_post; |
3060 | int r; | |
3061 | ||
3a111838 MS |
3062 | /* Let's try to load the pid file here if we can. |
3063 | * The PID file might actually be created by a START_POST | |
3064 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
3065 | |
3066 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
3067 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
3068 | if (!has_start_post && r < 0) { |
3069 | r = service_demand_pid_file(s); | |
3070 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 3071 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
3072 | break; |
3073 | } | |
034c6ed7 | 3074 | } else |
3a111838 | 3075 | service_search_main_pid(s); |
034c6ed7 | 3076 | |
3a111838 | 3077 | service_enter_start_post(s); |
034c6ed7 LP |
3078 | break; |
3079 | ||
3080 | case SERVICE_START_POST: | |
f42806df LP |
3081 | if (f != SERVICE_SUCCESS) { |
3082 | service_enter_stop(s, f); | |
2096e009 | 3083 | break; |
034c6ed7 LP |
3084 | } |
3085 | ||
2096e009 | 3086 | if (s->pid_file) { |
f42806df LP |
3087 | int r; |
3088 | ||
3089 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3090 | if (r < 0) { |
3091 | r = service_demand_pid_file(s); | |
3092 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 3093 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
2096e009 MS |
3094 | break; |
3095 | } | |
3096 | } else | |
3097 | service_search_main_pid(s); | |
3098 | ||
f42806df | 3099 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3100 | break; |
034c6ed7 LP |
3101 | |
3102 | case SERVICE_RELOAD: | |
f42806df | 3103 | if (f == SERVICE_SUCCESS) { |
5375410b | 3104 | service_load_pid_file(s, true); |
3185a36b LP |
3105 | service_search_main_pid(s); |
3106 | } | |
3107 | ||
f42806df LP |
3108 | s->reload_result = f; |
3109 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3110 | break; |
3111 | ||
3112 | case SERVICE_STOP: | |
f42806df | 3113 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3114 | break; |
3115 | ||
3116 | case SERVICE_STOP_SIGTERM: | |
3117 | case SERVICE_STOP_SIGKILL: | |
3118 | if (main_pid_good(s) <= 0) | |
f42806df | 3119 | service_enter_stop_post(s, f); |
034c6ed7 LP |
3120 | |
3121 | /* If there is still a service | |
3122 | * process around, wait until | |
3123 | * that one quit, too */ | |
3124 | break; | |
3125 | ||
3126 | case SERVICE_STOP_POST: | |
3127 | case SERVICE_FINAL_SIGTERM: | |
3128 | case SERVICE_FINAL_SIGKILL: | |
bf108e55 LP |
3129 | if (main_pid_good(s) <= 0) |
3130 | service_enter_dead(s, f, true); | |
034c6ed7 LP |
3131 | break; |
3132 | ||
3133 | default: | |
3134 | assert_not_reached("Uh, control process died at wrong time."); | |
3135 | } | |
3136 | } | |
8c47c732 | 3137 | } |
c4e2ceae LP |
3138 | |
3139 | /* Notify clients about changed exit status */ | |
3140 | unit_add_to_dbus_queue(u); | |
034c6ed7 LP |
3141 | } |
3142 | ||
718db961 LP |
3143 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
3144 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
3145 | |
3146 | assert(s); | |
718db961 | 3147 | assert(source == s->timer_event_source); |
034c6ed7 LP |
3148 | |
3149 | switch (s->state) { | |
3150 | ||
3151 | case SERVICE_START_PRE: | |
3152 | case SERVICE_START: | |
718db961 | 3153 | log_warning_unit(UNIT(s)->id, |
41aef6fc ZJS |
3154 | "%s %s operation timed out. Terminating.", |
3155 | UNIT(s)->id, | |
3156 | s->state == SERVICE_START ? "start" : "start-pre"); | |
f42806df | 3157 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
3158 | break; |
3159 | ||
034c6ed7 | 3160 | case SERVICE_START_POST: |
718db961 | 3161 | log_warning_unit(UNIT(s)->id, |
41aef6fc | 3162 | "%s start-post operation timed out. Stopping.", UNIT(s)->id); |
f42806df | 3163 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3164 | break; |
3165 | ||
e2f3b44c | 3166 | case SERVICE_RELOAD: |
718db961 | 3167 | log_warning_unit(UNIT(s)->id, |
41aef6fc | 3168 | "%s reload operation timed out. Stopping.", UNIT(s)->id); |
f42806df LP |
3169 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3170 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3171 | break; |
3172 | ||
034c6ed7 | 3173 | case SERVICE_STOP: |
718db961 LP |
3174 | log_warning_unit(UNIT(s)->id, |
3175 | "%s stopping timed out. Terminating.", UNIT(s)->id); | |
f42806df | 3176 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3177 | break; |
3178 | ||
3179 | case SERVICE_STOP_SIGTERM: | |
4819ff03 | 3180 | if (s->kill_context.send_sigkill) { |
718db961 | 3181 | log_warning_unit(UNIT(s)->id, |
41aef6fc | 3182 | "%s stop-sigterm timed out. Killing.", UNIT(s)->id); |
f42806df | 3183 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3184 | } else { |
718db961 | 3185 | log_warning_unit(UNIT(s)->id, |
41aef6fc | 3186 | "%s stop-sigterm timed out. Skipping SIGKILL.", UNIT(s)->id); |
f42806df | 3187 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3188 | } |
3189 | ||
034c6ed7 LP |
3190 | break; |
3191 | ||
3192 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3193 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3194 | * Must be something we cannot kill, so let's just be |
3195 | * weirded out and continue */ | |
3196 | ||
718db961 LP |
3197 | log_warning_unit(UNIT(s)->id, |
3198 | "%s still around after SIGKILL. Ignoring.", UNIT(s)->id); | |
f42806df | 3199 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3200 | break; |
3201 | ||
3202 | case SERVICE_STOP_POST: | |
718db961 | 3203 | log_warning_unit(UNIT(s)->id, |
41aef6fc | 3204 | "%s stop-post timed out. Terminating.", UNIT(s)->id); |
f42806df | 3205 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3206 | break; |
3207 | ||
3208 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 3209 | if (s->kill_context.send_sigkill) { |
718db961 | 3210 | log_warning_unit(UNIT(s)->id, |
41aef6fc | 3211 | "%s stop-final-sigterm timed out. Killing.", UNIT(s)->id); |
f42806df | 3212 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3213 | } else { |
718db961 | 3214 | log_warning_unit(UNIT(s)->id, |
41aef6fc | 3215 | "%s stop-final-sigterm timed out. Skipping SIGKILL. Entering failed mode.", |
718db961 | 3216 | UNIT(s)->id); |
f42806df | 3217 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3218 | } |
3219 | ||
034c6ed7 LP |
3220 | break; |
3221 | ||
3222 | case SERVICE_FINAL_SIGKILL: | |
718db961 | 3223 | log_warning_unit(UNIT(s)->id, |
41aef6fc | 3224 | "%s still around after final SIGKILL. Entering failed mode.", UNIT(s)->id); |
f42806df | 3225 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3226 | break; |
3227 | ||
3228 | case SERVICE_AUTO_RESTART: | |
718db961 LP |
3229 | log_info_unit(UNIT(s)->id, |
3230 | "%s holdoff time over, scheduling restart.", UNIT(s)->id); | |
034c6ed7 LP |
3231 | service_enter_restart(s); |
3232 | break; | |
3233 | ||
3234 | default: | |
3235 | assert_not_reached("Timeout at wrong time."); | |
3236 | } | |
718db961 LP |
3237 | |
3238 | return 0; | |
3239 | } | |
3240 | ||
3241 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
3242 | Service *s = SERVICE(userdata); | |
3243 | ||
3244 | assert(s); | |
3245 | assert(source == s->watchdog_event_source); | |
3246 | ||
842129f5 LP |
3247 | log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id); |
3248 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_WATCHDOG); | |
3249 | ||
718db961 | 3250 | return 0; |
5cb5a6ff LP |
3251 | } |
3252 | ||
4ad49000 | 3253 | static void service_notify_cgroup_empty_event(Unit *u) { |
8e274523 LP |
3254 | Service *s = SERVICE(u); |
3255 | ||
3256 | assert(u); | |
3257 | ||
6c12b52e | 3258 | log_debug_unit(u->id, "%s: cgroup is empty", u->id); |
8e274523 LP |
3259 | |
3260 | switch (s->state) { | |
3261 | ||
3262 | /* Waiting for SIGCHLD is usually more interesting, | |
3263 | * because it includes return codes/signals. Which is | |
3264 | * why we ignore the cgroup events for most cases, | |
3265 | * except when we don't know pid which to expect the | |
3266 | * SIGCHLD for. */ | |
3267 | ||
3a111838 MS |
3268 | case SERVICE_START: |
3269 | case SERVICE_START_POST: | |
3270 | /* If we were hoping for the daemon to write its PID file, | |
3271 | * we can give up now. */ | |
3272 | if (s->pid_file_pathspec) { | |
66870f90 ZJS |
3273 | log_warning_unit(u->id, |
3274 | "%s never wrote its PID file. Failing.", UNIT(s)->id); | |
3a111838 MS |
3275 | service_unwatch_pid_file(s); |
3276 | if (s->state == SERVICE_START) | |
f42806df | 3277 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 | 3278 | else |
f42806df | 3279 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
3280 | } |
3281 | break; | |
3282 | ||
8e274523 | 3283 | case SERVICE_RUNNING: |
f42806df LP |
3284 | /* service_enter_running() will figure out what to do */ |
3285 | service_enter_running(s, SERVICE_SUCCESS); | |
8e274523 LP |
3286 | break; |
3287 | ||
28708d8a LP |
3288 | case SERVICE_STOP_SIGTERM: |
3289 | case SERVICE_STOP_SIGKILL: | |
6dfa5494 | 3290 | |
28708d8a | 3291 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) |
f42806df | 3292 | service_enter_stop_post(s, SERVICE_SUCCESS); |
28708d8a LP |
3293 | |
3294 | break; | |
3295 | ||
bf108e55 | 3296 | case SERVICE_STOP_POST: |
7f97f0fe LP |
3297 | case SERVICE_FINAL_SIGTERM: |
3298 | case SERVICE_FINAL_SIGKILL: | |
3299 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
e201a038 | 3300 | service_enter_dead(s, SERVICE_SUCCESS, true); |
7f97f0fe LP |
3301 | |
3302 | break; | |
3303 | ||
8e274523 LP |
3304 | default: |
3305 | ; | |
3306 | } | |
3307 | } | |
3308 | ||
c952c6ec | 3309 | static void service_notify_message(Unit *u, pid_t pid, char **tags) { |
8c47c732 LP |
3310 | Service *s = SERVICE(u); |
3311 | const char *e; | |
30b5275a | 3312 | bool notify_dbus = false; |
8c47c732 LP |
3313 | |
3314 | assert(u); | |
3315 | ||
ccd06097 ZJS |
3316 | log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT" (%s...)", |
3317 | u->id, pid, tags && *tags ? tags[0] : "(empty)"); | |
da13d4d2 | 3318 | |
c952c6ec | 3319 | if (s->notify_access == NOTIFY_NONE) { |
66870f90 | 3320 | log_warning_unit(u->id, |
ccd06097 ZJS |
3321 | "%s: Got notification message from PID "PID_FMT", but reception is disabled.", |
3322 | u->id, pid); | |
c952c6ec LP |
3323 | return; |
3324 | } | |
3325 | ||
da13d4d2 | 3326 | if (s->notify_access == NOTIFY_MAIN && s->main_pid != 0 && pid != s->main_pid) { |
66870f90 | 3327 | log_warning_unit(u->id, |
ccd06097 ZJS |
3328 | "%s: Got notification message from PID "PID_FMT", but reception only permitted for PID "PID_FMT, |
3329 | u->id, pid, s->main_pid); | |
c952c6ec LP |
3330 | return; |
3331 | } | |
3332 | ||
8c47c732 LP |
3333 | /* Interpret MAINPID= */ |
3334 | if ((e = strv_find_prefix(tags, "MAINPID=")) && | |
3335 | (s->state == SERVICE_START || | |
3336 | s->state == SERVICE_START_POST || | |
3337 | s->state == SERVICE_RUNNING || | |
3338 | s->state == SERVICE_RELOAD)) { | |
8c47c732 | 3339 | |
5925dd3c | 3340 | if (parse_pid(e + 8, &pid) < 0) |
30b5275a | 3341 | log_warning_unit(u->id, "Failed to parse notification message %s", e); |
8c47c732 | 3342 | else { |
30b5275a | 3343 | log_debug_unit(u->id, "%s: got %s", u->id, e); |
5925dd3c | 3344 | service_set_main_pid(s, pid); |
7400b9d2 | 3345 | unit_watch_pid(UNIT(s), pid); |
30b5275a | 3346 | notify_dbus = true; |
8c47c732 LP |
3347 | } |
3348 | } | |
3349 | ||
3350 | /* Interpret READY= */ | |
30b5275a LP |
3351 | if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START && strv_find(tags, "READY=1")) { |
3352 | log_debug_unit(u->id, "%s: got READY=1", u->id); | |
8c47c732 | 3353 | service_enter_start_post(s); |
30b5275a | 3354 | notify_dbus = true; |
8c47c732 LP |
3355 | } |
3356 | ||
3357 | /* Interpret STATUS= */ | |
7f110ff9 LP |
3358 | e = strv_find_prefix(tags, "STATUS="); |
3359 | if (e) { | |
8c47c732 LP |
3360 | char *t; |
3361 | ||
3a2776bc | 3362 | if (e[7]) { |
7f110ff9 | 3363 | if (!utf8_is_valid(e+7)) { |
30b5275a | 3364 | log_warning_unit(u->id, "Status message in notification is not UTF-8 clean."); |
7f110ff9 LP |
3365 | return; |
3366 | } | |
3367 | ||
30b5275a LP |
3368 | log_debug_unit(u->id, "%s: got %s", u->id, e); |
3369 | ||
7f110ff9 LP |
3370 | t = strdup(e+7); |
3371 | if (!t) { | |
30b5275a | 3372 | log_oom(); |
3a2776bc LP |
3373 | return; |
3374 | } | |
3375 | ||
30b5275a LP |
3376 | } else |
3377 | t = NULL; | |
8c47c732 | 3378 | |
30b5275a | 3379 | if (!streq_ptr(s->status_text, t)) { |
3a2776bc LP |
3380 | free(s->status_text); |
3381 | s->status_text = t; | |
30b5275a LP |
3382 | notify_dbus = true; |
3383 | } else | |
3384 | free(t); | |
8c47c732 | 3385 | } |
842129f5 | 3386 | |
30b5275a | 3387 | /* Interpet WATCHDOG= */ |
a6927d7f | 3388 | if (strv_find(tags, "WATCHDOG=1")) { |
842129f5 LP |
3389 | log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id); |
3390 | service_reset_watchdog(s); | |
a6927d7f | 3391 | } |
c4e2ceae LP |
3392 | |
3393 | /* Notify clients about changed status or main pid */ | |
30b5275a LP |
3394 | if (notify_dbus) |
3395 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
3396 | } |
3397 | ||
68db7a3b ZJS |
3398 | static int service_get_timeout(Unit *u, uint64_t *timeout) { |
3399 | Service *s = SERVICE(u); | |
3400 | int r; | |
3401 | ||
3402 | if (!s->timer_event_source) | |
3403 | return 0; | |
3404 | ||
3405 | r = sd_event_source_get_time(s->timer_event_source, timeout); | |
3406 | if (r < 0) | |
3407 | return r; | |
3408 | ||
3409 | return 1; | |
3410 | } | |
3411 | ||
07459bb6 | 3412 | #ifdef HAVE_SYSV_COMPAT |
de3910a3 | 3413 | |
2c4104f0 | 3414 | static int service_enumerate(Manager *m) { |
2c4104f0 LP |
3415 | char **p; |
3416 | unsigned i; | |
7fd1b19b HH |
3417 | _cleanup_closedir_ DIR *d = NULL; |
3418 | _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL; | |
b92bea5d | 3419 | Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {}; |
7fd1b19b | 3420 | _cleanup_set_free_ Set *shutdown_services = NULL; |
c68364b7 LP |
3421 | Unit *service; |
3422 | Iterator j; | |
2c4104f0 LP |
3423 | int r; |
3424 | ||
3425 | assert(m); | |
3426 | ||
67445f4e | 3427 | if (m->running_as != SYSTEMD_SYSTEM) |
b1bc08e5 LP |
3428 | return 0; |
3429 | ||
84e3543e | 3430 | STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path) |
09cd1ab1 | 3431 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) { |
2c4104f0 LP |
3432 | struct dirent *de; |
3433 | ||
3434 | free(path); | |
b7def684 | 3435 | path = strjoin(*p, "/", rcnd_table[i].path, NULL); |
70132bd0 | 3436 | if (!path) { |
2c4104f0 LP |
3437 | r = -ENOMEM; |
3438 | goto finish; | |
3439 | } | |
3440 | ||
3441 | if (d) | |
3442 | closedir(d); | |
3443 | ||
117dcc57 ZJS |
3444 | d = opendir(path); |
3445 | if (!d) { | |
2c4104f0 | 3446 | if (errno != ENOENT) |
f5f6d0e2 | 3447 | log_warning("opendir(%s) failed: %m", path); |
2c4104f0 LP |
3448 | |
3449 | continue; | |
3450 | } | |
3451 | ||
3452 | while ((de = readdir(d))) { | |
db06e3b6 | 3453 | int a, b; |
2c4104f0 LP |
3454 | |
3455 | if (ignore_file(de->d_name)) | |
3456 | continue; | |
3457 | ||
3458 | if (de->d_name[0] != 'S' && de->d_name[0] != 'K') | |
3459 | continue; | |
3460 | ||
3461 | if (strlen(de->d_name) < 4) | |
3462 | continue; | |
3463 | ||
db06e3b6 LP |
3464 | a = undecchar(de->d_name[1]); |
3465 | b = undecchar(de->d_name[2]); | |
3466 | ||
3467 | if (a < 0 || b < 0) | |
3468 | continue; | |
3469 | ||
2c4104f0 | 3470 | free(fpath); |
b7def684 | 3471 | fpath = strjoin(path, "/", de->d_name, NULL); |
8ea913b2 | 3472 | if (!fpath) { |
2c4104f0 LP |
3473 | r = -ENOMEM; |
3474 | goto finish; | |
3475 | } | |
3476 | ||
3477 | if (access(fpath, X_OK) < 0) { | |
3478 | ||
3479 | if (errno != ENOENT) | |
f5f6d0e2 | 3480 | log_warning("access() failed on %s: %m", fpath); |
2c4104f0 LP |
3481 | |
3482 | continue; | |
3483 | } | |
3484 | ||
3485 | free(name); | |
117dcc57 ZJS |
3486 | name = sysv_translate_name(de->d_name + 3); |
3487 | if (!name) { | |
3488 | r = log_oom(); | |
2c4104f0 LP |
3489 | goto finish; |
3490 | } | |
3491 | ||
66870f90 ZJS |
3492 | r = manager_load_unit_prepare(m, name, NULL, NULL, &service); |
3493 | if (r < 0) { | |
fbe9f3a9 LP |
3494 | log_warning("Failed to prepare unit %s: %s", name, strerror(-r)); |
3495 | continue; | |
3496 | } | |
2c4104f0 | 3497 | |
c68364b7 LP |
3498 | if (de->d_name[0] == 'S') { |
3499 | ||
3cdebc21 | 3500 | if (rcnd_table[i].type == RUNLEVEL_UP) { |
ea87ca5a LP |
3501 | SERVICE(service)->sysv_start_priority_from_rcnd = |
3502 | MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd); | |
db06e3b6 | 3503 | |
c68364b7 | 3504 | SERVICE(service)->sysv_enabled = true; |
f73d93a4 | 3505 | } |
db06e3b6 | 3506 | |
117dcc57 ZJS |
3507 | r = set_ensure_allocated(&runlevel_services[i], |
3508 | trivial_hash_func, trivial_compare_func); | |
3509 | if (r < 0) | |
c68364b7 | 3510 | goto finish; |
2c4104f0 | 3511 | |
117dcc57 ZJS |
3512 | r = set_put(runlevel_services[i], service); |
3513 | if (r < 0) | |
2c4104f0 | 3514 | goto finish; |
23a177ef | 3515 | |
fc5df99e | 3516 | } else if (de->d_name[0] == 'K' && |
3cdebc21 | 3517 | (rcnd_table[i].type == RUNLEVEL_DOWN)) { |
6542952f | 3518 | |
117dcc57 ZJS |
3519 | r = set_ensure_allocated(&shutdown_services, |
3520 | trivial_hash_func, trivial_compare_func); | |
3521 | if (r < 0) | |
c68364b7 LP |
3522 | goto finish; |
3523 | ||
117dcc57 ZJS |
3524 | r = set_put(shutdown_services, service); |
3525 | if (r < 0) | |
2c4104f0 LP |
3526 | goto finish; |
3527 | } | |
3528 | } | |
3529 | } | |
3530 | ||
c68364b7 LP |
3531 | /* Now we loaded all stubs and are aware of the lowest |
3532 | start-up priority for all services, not let's actually load | |
3533 | the services, this will also tell us which services are | |
3534 | actually native now */ | |
3535 | manager_dispatch_load_queue(m); | |
3536 | ||
3537 | /* If this is a native service, rely on native ways to pull in | |
3538 | * a service, don't pull it in via sysv rcN.d links. */ | |
3539 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) | |
3540 | SET_FOREACH(service, runlevel_services[i], j) { | |
3541 | service = unit_follow_merge(service); | |
3542 | ||
ac155bb8 | 3543 | if (service->fragment_path) |
c68364b7 LP |
3544 | continue; |
3545 | ||
117dcc57 ZJS |
3546 | r = unit_add_two_dependencies_by_name_inverse( |
3547 | service, UNIT_AFTER, UNIT_WANTS, | |
3548 | rcnd_table[i].target, NULL, true); | |
3549 | if (r < 0) | |
c68364b7 LP |
3550 | goto finish; |
3551 | } | |
3552 | ||
3553 | /* We honour K links only for halt/reboot. For the normal | |
3554 | * runlevels we assume the stop jobs will be implicitly added | |
35b8ca3a | 3555 | * by the core logic. Also, we don't really distinguish here |
c68364b7 | 3556 | * between the runlevels 0 and 6 and just add them to the |
3cdebc21 | 3557 | * special shutdown target. */ |
c68364b7 LP |
3558 | SET_FOREACH(service, shutdown_services, j) { |
3559 | service = unit_follow_merge(service); | |
3560 | ||
ac155bb8 | 3561 | if (service->fragment_path) |
c68364b7 LP |
3562 | continue; |
3563 | ||
117dcc57 ZJS |
3564 | r = unit_add_two_dependencies_by_name( |
3565 | service, UNIT_BEFORE, UNIT_CONFLICTS, | |
3566 | SPECIAL_SHUTDOWN_TARGET, NULL, true); | |
3567 | if (r < 0) | |
c68364b7 LP |
3568 | goto finish; |
3569 | } | |
3570 | ||
2c4104f0 LP |
3571 | r = 0; |
3572 | ||
3573 | finish: | |
fbe9f3a9 | 3574 | |
c68364b7 LP |
3575 | for (i = 0; i < ELEMENTSOF(rcnd_table); i++) |
3576 | set_free(runlevel_services[i]); | |
2c4104f0 LP |
3577 | |
3578 | return r; | |
3579 | } | |
07459bb6 | 3580 | #endif |
2c4104f0 | 3581 | |
05e343b7 LP |
3582 | static void service_bus_name_owner_change( |
3583 | Unit *u, | |
3584 | const char *name, | |
3585 | const char *old_owner, | |
3586 | const char *new_owner) { | |
3587 | ||
3588 | Service *s = SERVICE(u); | |
718db961 | 3589 | int r; |
05e343b7 LP |
3590 | |
3591 | assert(s); | |
3592 | assert(name); | |
3593 | ||
3594 | assert(streq(s->bus_name, name)); | |
3595 | assert(old_owner || new_owner); | |
3596 | ||
3597 | if (old_owner && new_owner) | |
66870f90 ZJS |
3598 | log_debug_unit(u->id, |
3599 | "%s's D-Bus name %s changed owner from %s to %s", | |
3600 | u->id, name, old_owner, new_owner); | |
05e343b7 | 3601 | else if (old_owner) |
66870f90 ZJS |
3602 | log_debug_unit(u->id, |
3603 | "%s's D-Bus name %s no longer registered by %s", | |
3604 | u->id, name, old_owner); | |
05e343b7 | 3605 | else |
66870f90 ZJS |
3606 | log_debug_unit(u->id, |
3607 | "%s's D-Bus name %s now registered by %s", | |
3608 | u->id, name, new_owner); | |
05e343b7 LP |
3609 | |
3610 | s->bus_name_good = !!new_owner; | |
3611 | ||
3612 | if (s->type == SERVICE_DBUS) { | |
3613 | ||
3614 | /* service_enter_running() will figure out what to | |
3615 | * do */ | |
3616 | if (s->state == SERVICE_RUNNING) | |
f42806df | 3617 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
3618 | else if (s->state == SERVICE_START && new_owner) |
3619 | service_enter_start_post(s); | |
3620 | ||
3621 | } else if (new_owner && | |
3622 | s->main_pid <= 0 && | |
3623 | (s->state == SERVICE_START || | |
3624 | s->state == SERVICE_START_POST || | |
3625 | s->state == SERVICE_RUNNING || | |
3626 | s->state == SERVICE_RELOAD)) { | |
3627 | ||
5b12334d | 3628 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
718db961 | 3629 | pid_t pid; |
05e343b7 | 3630 | |
718db961 | 3631 | /* Try to acquire PID from bus service */ |
05e343b7 | 3632 | |
49b832c5 | 3633 | r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
3634 | if (r >= 0) |
3635 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 LP |
3636 | if (r >= 0) { |
3637 | log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid); | |
05e343b7 | 3638 | |
718db961 LP |
3639 | service_set_main_pid(s, pid); |
3640 | unit_watch_pid(UNIT(s), pid); | |
3641 | } | |
7400b9d2 | 3642 | } |
05e343b7 LP |
3643 | } |
3644 | ||
6cf6bbc2 | 3645 | int service_set_socket_fd(Service *s, int fd, Socket *sock) { |
79a98c60 LP |
3646 | _cleanup_free_ char *peer = NULL; |
3647 | int r; | |
57020a3a | 3648 | |
4f2d528d LP |
3649 | assert(s); |
3650 | assert(fd >= 0); | |
3651 | ||
3652 | /* This is called by the socket code when instantiating a new | |
3653 | * service for a stream socket and the socket needs to be | |
3654 | * configured. */ | |
3655 | ||
1124fe6f | 3656 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
3657 | return -EINVAL; |
3658 | ||
3659 | if (s->socket_fd >= 0) | |
3660 | return -EBUSY; | |
3661 | ||
3662 | if (s->state != SERVICE_DEAD) | |
3663 | return -EAGAIN; | |
3664 | ||
79a98c60 LP |
3665 | if (getpeername_pretty(fd, &peer) >= 0) { |
3666 | ||
3667 | if (UNIT(s)->description) { | |
3668 | _cleanup_free_ char *a; | |
3669 | ||
3670 | a = strjoin(UNIT(s)->description, " (", peer, ")", NULL); | |
3671 | if (!a) | |
3672 | return -ENOMEM; | |
3673 | ||
3674 | r = unit_set_description(UNIT(s), a); | |
3675 | } else | |
3676 | r = unit_set_description(UNIT(s), peer); | |
3677 | ||
3678 | if (r < 0) | |
3679 | return r; | |
3680 | } | |
3681 | ||
4f2d528d | 3682 | s->socket_fd = fd; |
6cf6bbc2 | 3683 | |
57020a3a LP |
3684 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
3685 | ||
3686 | return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); | |
4f2d528d LP |
3687 | } |
3688 | ||
fdf20a31 | 3689 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
3690 | Service *s = SERVICE(u); |
3691 | ||
3692 | assert(s); | |
3693 | ||
fdf20a31 | 3694 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
3695 | service_set_state(s, SERVICE_DEAD); |
3696 | ||
f42806df LP |
3697 | s->result = SERVICE_SUCCESS; |
3698 | s->reload_result = SERVICE_SUCCESS; | |
451b34cc LP |
3699 | |
3700 | RATELIMIT_RESET(s->start_limit); | |
5632e374 LP |
3701 | } |
3702 | ||
718db961 | 3703 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 3704 | Service *s = SERVICE(u); |
41efeaec | 3705 | |
814cc562 | 3706 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
3707 | } |
3708 | ||
94f04347 LP |
3709 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { |
3710 | [SERVICE_DEAD] = "dead", | |
3711 | [SERVICE_START_PRE] = "start-pre", | |
3712 | [SERVICE_START] = "start", | |
3713 | [SERVICE_START_POST] = "start-post", | |
3714 | [SERVICE_RUNNING] = "running", | |
80876c20 | 3715 | [SERVICE_EXITED] = "exited", |
94f04347 LP |
3716 | [SERVICE_RELOAD] = "reload", |
3717 | [SERVICE_STOP] = "stop", | |
3718 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
3719 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
3720 | [SERVICE_STOP_POST] = "stop-post", | |
3721 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
3722 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
fdf20a31 | 3723 | [SERVICE_FAILED] = "failed", |
94f04347 LP |
3724 | [SERVICE_AUTO_RESTART] = "auto-restart", |
3725 | }; | |
3726 | ||
3727 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
3728 | ||
3729 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { | |
525ee6f4 LP |
3730 | [SERVICE_RESTART_NO] = "no", |
3731 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 3732 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
dc99a976 | 3733 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb LP |
3734 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
3735 | [SERVICE_RESTART_ALWAYS] = "always" | |
94f04347 LP |
3736 | }; |
3737 | ||
3738 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
3739 | ||
3740 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 3741 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 3742 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 3743 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 3744 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
3745 | [SERVICE_NOTIFY] = "notify", |
3746 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
3747 | }; |
3748 | ||
3749 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
3750 | ||
e537352b | 3751 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
3752 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
3753 | [SERVICE_EXEC_START] = "ExecStart", | |
3754 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
3755 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
3756 | [SERVICE_EXEC_STOP] = "ExecStop", | |
3757 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
3758 | }; | |
3759 | ||
3760 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
3761 | ||
c952c6ec LP |
3762 | static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = { |
3763 | [NOTIFY_NONE] = "none", | |
3764 | [NOTIFY_MAIN] = "main", | |
3765 | [NOTIFY_ALL] = "all" | |
3766 | }; | |
3767 | ||
3768 | DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess); | |
3769 | ||
f42806df LP |
3770 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
3771 | [SERVICE_SUCCESS] = "success", | |
3772 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
3773 | [SERVICE_FAILURE_TIMEOUT] = "timeout", | |
3774 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
3775 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 3776 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a LP |
3777 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
3778 | [SERVICE_FAILURE_START_LIMIT] = "start-limit" | |
f42806df LP |
3779 | }; |
3780 | ||
3781 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
3782 | ||
4b939747 MO |
3783 | static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = { |
3784 | [SERVICE_START_LIMIT_NONE] = "none", | |
3785 | [SERVICE_START_LIMIT_REBOOT] = "reboot", | |
3786 | [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force", | |
3787 | [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate" | |
3788 | }; | |
3789 | DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction); | |
3790 | ||
87f0e418 | 3791 | const UnitVTable service_vtable = { |
7d17cfbc | 3792 | .object_size = sizeof(Service), |
718db961 LP |
3793 | .exec_context_offset = offsetof(Service, exec_context), |
3794 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
3795 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 3796 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
3ef63c31 | 3797 | |
f975e971 LP |
3798 | .sections = |
3799 | "Unit\0" | |
3800 | "Service\0" | |
3801 | "Install\0", | |
4ad49000 | 3802 | .private_section = "Service", |
71645aca | 3803 | |
034c6ed7 LP |
3804 | .init = service_init, |
3805 | .done = service_done, | |
a16e1123 LP |
3806 | .load = service_load, |
3807 | ||
3808 | .coldplug = service_coldplug, | |
034c6ed7 | 3809 | |
5cb5a6ff LP |
3810 | .dump = service_dump, |
3811 | ||
3812 | .start = service_start, | |
3813 | .stop = service_stop, | |
3814 | .reload = service_reload, | |
3815 | ||
034c6ed7 LP |
3816 | .can_reload = service_can_reload, |
3817 | ||
8a0867d6 LP |
3818 | .kill = service_kill, |
3819 | ||
a16e1123 LP |
3820 | .serialize = service_serialize, |
3821 | .deserialize_item = service_deserialize_item, | |
3822 | ||
5cb5a6ff | 3823 | .active_state = service_active_state, |
10a94420 | 3824 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 3825 | |
701cc384 LP |
3826 | .check_gc = service_check_gc, |
3827 | .check_snapshot = service_check_snapshot, | |
3828 | ||
034c6ed7 | 3829 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 3830 | |
fdf20a31 | 3831 | .reset_failed = service_reset_failed, |
5632e374 | 3832 | |
4ad49000 | 3833 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 3834 | .notify_message = service_notify_message, |
8e274523 | 3835 | |
05e343b7 | 3836 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 3837 | |
c4e2ceae | 3838 | .bus_interface = "org.freedesktop.systemd1.Service", |
718db961 | 3839 | .bus_vtable = bus_service_vtable, |
74c964d3 LP |
3840 | .bus_set_property = bus_service_set_property, |
3841 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 3842 | |
68db7a3b ZJS |
3843 | .get_timeout = service_get_timeout, |
3844 | ||
07459bb6 | 3845 | #ifdef HAVE_SYSV_COMPAT |
c6918296 | 3846 | .enumerate = service_enumerate, |
07459bb6 | 3847 | #endif |
718db961 LP |
3848 | |
3849 | .can_transient = true, | |
3850 | ||
c6918296 MS |
3851 | .status_message_formats = { |
3852 | .starting_stopping = { | |
3853 | [0] = "Starting %s...", | |
3854 | [1] = "Stopping %s...", | |
3855 | }, | |
3856 | .finished_start_job = { | |
3857 | [JOB_DONE] = "Started %s.", | |
3858 | [JOB_FAILED] = "Failed to start %s.", | |
3859 | [JOB_DEPENDENCY] = "Dependency failed for %s.", | |
3860 | [JOB_TIMEOUT] = "Timed out starting %s.", | |
3861 | }, | |
3862 | .finished_stop_job = { | |
3863 | [JOB_DONE] = "Stopped %s.", | |
3864 | [JOB_FAILED] = "Stopped (with error) %s.", | |
3865 | [JOB_TIMEOUT] = "Timed out stopping %s.", | |
3866 | }, | |
3867 | }, | |
5cb5a6ff | 3868 | }; |