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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 ZJS |
212 | log_warning_unit(UNIT(s)->id, |
213 | "%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.", | |
214 | UNIT(s)->id, (unsigned long) 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); |
718db961 LP |
266 | } else |
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); | |
268 | ||
bb242b7b | 269 | if (r < 0) |
842129f5 | 270 | log_warning_unit(UNIT(s)->id, "%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r)); |
bb242b7b MO |
271 | } |
272 | ||
a6927d7f MO |
273 | static void service_reset_watchdog(Service *s) { |
274 | assert(s); | |
275 | ||
276 | dual_timestamp_get(&s->watchdog_timestamp); | |
842129f5 | 277 | service_start_watchdog(s); |
a6927d7f MO |
278 | } |
279 | ||
87f0e418 LP |
280 | static void service_done(Unit *u) { |
281 | Service *s = SERVICE(u); | |
44d8db9e LP |
282 | |
283 | assert(s); | |
284 | ||
285 | free(s->pid_file); | |
286 | s->pid_file = NULL; | |
287 | ||
07459bb6 | 288 | #ifdef HAVE_SYSV_COMPAT |
8309400a LP |
289 | free(s->sysv_runlevels); |
290 | s->sysv_runlevels = NULL; | |
07459bb6 | 291 | #endif |
8309400a | 292 | |
8c47c732 LP |
293 | free(s->status_text); |
294 | s->status_text = NULL; | |
295 | ||
4ad49000 | 296 | cgroup_context_done(&s->cgroup_context); |
613b411c LP |
297 | exec_context_done(&s->exec_context); |
298 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
e537352b | 299 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 300 | s->control_command = NULL; |
867b3b7d | 301 | s->main_command = NULL; |
44d8db9e | 302 | |
96342de6 LN |
303 | set_free(s->restart_ignore_status.code); |
304 | s->restart_ignore_status.code = NULL; | |
305 | set_free(s->restart_ignore_status.signal); | |
306 | s->restart_ignore_status.signal = NULL; | |
307 | ||
308 | set_free(s->success_status.code); | |
309 | s->success_status.code = NULL; | |
310 | set_free(s->success_status.signal); | |
311 | s->success_status.signal = NULL; | |
312 | ||
44d8db9e LP |
313 | /* This will leak a process, but at least no memory or any of |
314 | * our resources */ | |
5e94833f LP |
315 | service_unwatch_main_pid(s); |
316 | service_unwatch_control_pid(s); | |
3e52541e | 317 | service_unwatch_pid_file(s); |
44d8db9e | 318 | |
05e343b7 | 319 | if (s->bus_name) { |
ac155bb8 | 320 | unit_unwatch_bus_name(u, s->bus_name); |
05e343b7 LP |
321 | free(s->bus_name); |
322 | s->bus_name = NULL; | |
323 | } | |
324 | ||
4f2d528d | 325 | service_close_socket_fd(s); |
6cf6bbc2 | 326 | service_connection_unref(s); |
4f2d528d | 327 | |
57020a3a | 328 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 329 | |
bb242b7b MO |
330 | service_stop_watchdog(s); |
331 | ||
718db961 LP |
332 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
333 | } | |
334 | ||
335 | static int service_arm_timer(Service *s, usec_t usec) { | |
336 | int r; | |
337 | ||
338 | assert(s); | |
339 | ||
718db961 LP |
340 | if (s->timer_event_source) { |
341 | r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec); | |
342 | if (r < 0) | |
343 | return r; | |
344 | ||
345 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
346 | } | |
347 | ||
348 | return sd_event_add_monotonic(UNIT(s)->manager->event, now(CLOCK_MONOTONIC) + usec, 0, service_dispatch_timer, s, &s->timer_event_source); | |
44d8db9e LP |
349 | } |
350 | ||
07459bb6 | 351 | #ifdef HAVE_SYSV_COMPAT |
b7ccee3c LP |
352 | static char *sysv_translate_name(const char *name) { |
353 | char *r; | |
354 | ||
5d4caf56 LP |
355 | r = new(char, strlen(name) + sizeof(".service")); |
356 | if (!r) | |
b7ccee3c LP |
357 | return NULL; |
358 | ||
5b819198 | 359 | if (endswith(name, ".sh")) |
85a3fa0e | 360 | /* Drop .sh suffix */ |
5b819198 | 361 | strcpy(stpcpy(r, name) - 3, ".service"); |
b7ccee3c | 362 | else |
85a3fa0e | 363 | /* Normal init script name */ |
b7ccee3c LP |
364 | strcpy(stpcpy(r, name), ".service"); |
365 | ||
366 | return r; | |
367 | } | |
368 | ||
ee95669f | 369 | static int sysv_translate_facility(const char *name, const char *filename, char **_r) { |
2c4104f0 | 370 | |
a7d3cc26 LP |
371 | /* We silently ignore the $ prefix here. According to the LSB |
372 | * spec it simply indicates whether something is a | |
373 | * standardized name or a distribution-specific one. Since we | |
374 | * just follow what already exists and do not introduce new | |
375 | * uses or names we don't care who introduced a new name. */ | |
376 | ||
2c4104f0 | 377 | static const char * const table[] = { |
6464aa08 | 378 | /* LSB defined facilities */ |
5d4caf56 | 379 | "local_fs", NULL, |
a7d3cc26 LP |
380 | "network", SPECIAL_NETWORK_TARGET, |
381 | "named", SPECIAL_NSS_LOOKUP_TARGET, | |
382 | "portmap", SPECIAL_RPCBIND_TARGET, | |
383 | "remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
5d4caf56 | 384 | "syslog", NULL, |
4466194c | 385 | "time", SPECIAL_TIME_SYNC_TARGET, |
2c4104f0 LP |
386 | }; |
387 | ||
388 | unsigned i; | |
389 | char *r; | |
ee95669f | 390 | const char *n; |
2c4104f0 | 391 | |
ee95669f LP |
392 | assert(name); |
393 | assert(_r); | |
a7d3cc26 | 394 | |
ee95669f | 395 | n = *name == '$' ? name + 1 : name; |
a7d3cc26 | 396 | |
ee95669f | 397 | for (i = 0; i < ELEMENTSOF(table); i += 2) { |
a7d3cc26 | 398 | |
ee95669f LP |
399 | if (!streq(table[i], n)) |
400 | continue; | |
2c4104f0 | 401 | |
ee95669f LP |
402 | if (!table[i+1]) |
403 | return 0; | |
404 | ||
5d4caf56 LP |
405 | r = strdup(table[i+1]); |
406 | if (!r) | |
407 | return log_oom(); | |
ee95669f LP |
408 | |
409 | goto finish; | |
410 | } | |
2c4104f0 | 411 | |
a7d3cc26 | 412 | /* If we don't know this name, fallback heuristics to figure |
0003d1ab | 413 | * out whether something is a target or a service alias. */ |
a7d3cc26 | 414 | |
e83c7c0b LP |
415 | if (*name == '$') { |
416 | if (!unit_prefix_is_valid(n)) | |
417 | return -EINVAL; | |
418 | ||
ee95669f LP |
419 | /* Facilities starting with $ are most likely targets */ |
420 | r = unit_name_build(n, NULL, ".target"); | |
e83c7c0b | 421 | } else if (filename && streq(name, filename)) |
35b8ca3a | 422 | /* Names equaling the file name of the services are redundant */ |
ee95669f | 423 | return 0; |
32159d3a | 424 | else |
ee95669f LP |
425 | /* Everything else we assume to be normal service names */ |
426 | r = sysv_translate_name(n); | |
2c4104f0 | 427 | |
32159d3a | 428 | if (!r) |
2c4104f0 LP |
429 | return -ENOMEM; |
430 | ||
431 | finish: | |
b4353094 | 432 | *_r = r; |
2c4104f0 LP |
433 | |
434 | return 1; | |
435 | } | |
436 | ||
56d748b4 | 437 | static int sysv_fix_order(Service *s) { |
ac155bb8 | 438 | Unit *other; |
2c4104f0 LP |
439 | int r; |
440 | ||
441 | assert(s); | |
442 | ||
443 | if (s->sysv_start_priority < 0) | |
444 | return 0; | |
445 | ||
23a177ef LP |
446 | /* For each pair of services where at least one lacks a LSB |
447 | * header, we use the start priority value to order things. */ | |
2c4104f0 | 448 | |
1124fe6f | 449 | LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) { |
2c4104f0 LP |
450 | Service *t; |
451 | UnitDependency d; | |
eeaafddc | 452 | bool special_s, special_t; |
2c4104f0 | 453 | |
595ed347 | 454 | t = SERVICE(other); |
2c4104f0 LP |
455 | |
456 | if (s == t) | |
457 | continue; | |
9f151f29 | 458 | |
1124fe6f | 459 | if (UNIT(t)->load_state != UNIT_LOADED) |
9f151f29 | 460 | continue; |
2c4104f0 LP |
461 | |
462 | if (t->sysv_start_priority < 0) | |
463 | continue; | |
464 | ||
51a1a79d LP |
465 | /* If both units have modern headers we don't care |
466 | * about the priorities */ | |
1124fe6f MS |
467 | if ((UNIT(s)->fragment_path || s->sysv_has_lsb) && |
468 | (UNIT(t)->fragment_path || t->sysv_has_lsb)) | |
23a177ef LP |
469 | continue; |
470 | ||
eeaafddc LP |
471 | special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels); |
472 | special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels); | |
473 | ||
474 | if (special_t && !special_s) | |
475 | d = UNIT_AFTER; | |
476 | else if (special_s && !special_t) | |
477 | d = UNIT_BEFORE; | |
478 | else if (t->sysv_start_priority < s->sysv_start_priority) | |
2c4104f0 LP |
479 | d = UNIT_AFTER; |
480 | else if (t->sysv_start_priority > s->sysv_start_priority) | |
481 | d = UNIT_BEFORE; | |
482 | else | |
483 | continue; | |
484 | ||
485 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
486 | ||
da19d5c1 | 487 | if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) |
2c4104f0 LP |
488 | return r; |
489 | } | |
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
494 | static ExecCommand *exec_command_new(const char *path, const char *arg1) { | |
495 | ExecCommand *c; | |
496 | ||
497 | if (!(c = new0(ExecCommand, 1))) | |
498 | return NULL; | |
499 | ||
500 | if (!(c->path = strdup(path))) { | |
501 | free(c); | |
502 | return NULL; | |
503 | } | |
504 | ||
505 | if (!(c->argv = strv_new(path, arg1, NULL))) { | |
506 | free(c->path); | |
507 | free(c); | |
508 | return NULL; | |
509 | } | |
510 | ||
511 | return c; | |
512 | } | |
513 | ||
37e2941d | 514 | static int sysv_exec_commands(Service *s, const bool supports_reload) { |
2c4104f0 LP |
515 | ExecCommand *c; |
516 | ||
517 | assert(s); | |
1b64d026 LP |
518 | assert(s->is_sysv); |
519 | assert(UNIT(s)->source_path); | |
2c4104f0 | 520 | |
1b64d026 LP |
521 | c = exec_command_new(UNIT(s)->source_path, "start"); |
522 | if (!c) | |
2c4104f0 LP |
523 | return -ENOMEM; |
524 | exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c); | |
525 | ||
1b64d026 LP |
526 | c = exec_command_new(UNIT(s)->source_path, "stop"); |
527 | if (!c) | |
2c4104f0 LP |
528 | return -ENOMEM; |
529 | exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c); | |
530 | ||
37e2941d MS |
531 | if (supports_reload) { |
532 | c = exec_command_new(UNIT(s)->source_path, "reload"); | |
533 | if (!c) | |
534 | return -ENOMEM; | |
535 | exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c); | |
536 | } | |
2c4104f0 LP |
537 | |
538 | return 0; | |
539 | } | |
540 | ||
37e2941d MS |
541 | static bool usage_contains_reload(const char *line) { |
542 | return (strcasestr(line, "{reload|") || | |
543 | strcasestr(line, "{reload}") || | |
544 | strcasestr(line, "{reload\"") || | |
545 | strcasestr(line, "|reload|") || | |
546 | strcasestr(line, "|reload}") || | |
547 | strcasestr(line, "|reload\"")); | |
548 | } | |
549 | ||
e537352b | 550 | static int service_load_sysv_path(Service *s, const char *path) { |
2c4104f0 LP |
551 | FILE *f; |
552 | Unit *u; | |
553 | unsigned line = 0; | |
554 | int r; | |
555 | enum { | |
556 | NORMAL, | |
557 | DESCRIPTION, | |
558 | LSB, | |
37e2941d MS |
559 | LSB_DESCRIPTION, |
560 | USAGE_CONTINUATION | |
2c4104f0 | 561 | } state = NORMAL; |
0b5d26f9 | 562 | char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description; |
5f4b19f4 | 563 | struct stat st; |
37e2941d | 564 | bool supports_reload = false; |
23a177ef LP |
565 | |
566 | assert(s); | |
567 | assert(path); | |
2c4104f0 LP |
568 | |
569 | u = UNIT(s); | |
570 | ||
1b64d026 LP |
571 | f = fopen(path, "re"); |
572 | if (!f) { | |
2c4104f0 LP |
573 | r = errno == ENOENT ? 0 : -errno; |
574 | goto finish; | |
575 | } | |
576 | ||
5f4b19f4 LP |
577 | if (fstat(fileno(f), &st) < 0) { |
578 | r = -errno; | |
579 | goto finish; | |
580 | } | |
581 | ||
1b64d026 LP |
582 | free(u->source_path); |
583 | u->source_path = strdup(path); | |
584 | if (!u->source_path) { | |
2c4104f0 LP |
585 | r = -ENOMEM; |
586 | goto finish; | |
587 | } | |
1b64d026 | 588 | u->source_mtime = timespec_load(&st.st_mtim); |
5f4b19f4 LP |
589 | |
590 | if (null_or_empty(&st)) { | |
ac155bb8 | 591 | u->load_state = UNIT_MASKED; |
5f4b19f4 LP |
592 | r = 0; |
593 | goto finish; | |
594 | } | |
595 | ||
1b64d026 LP |
596 | s->is_sysv = true; |
597 | ||
2c4104f0 LP |
598 | while (!feof(f)) { |
599 | char l[LINE_MAX], *t; | |
600 | ||
601 | if (!fgets(l, sizeof(l), f)) { | |
602 | if (feof(f)) | |
603 | break; | |
604 | ||
605 | r = -errno; | |
66870f90 ZJS |
606 | log_error_unit(u->id, |
607 | "Failed to read configuration file '%s': %s", | |
608 | path, strerror(-r)); | |
2c4104f0 LP |
609 | goto finish; |
610 | } | |
611 | ||
612 | line++; | |
613 | ||
614 | t = strstrip(l); | |
37e2941d MS |
615 | if (*t != '#') { |
616 | /* Try to figure out whether this init script supports | |
617 | * the reload operation. This heuristic looks for | |
618 | * "Usage" lines which include the reload option. */ | |
619 | if ( state == USAGE_CONTINUATION || | |
620 | (state == NORMAL && strcasestr(t, "usage"))) { | |
621 | if (usage_contains_reload(t)) { | |
622 | supports_reload = true; | |
623 | state = NORMAL; | |
624 | } else if (t[strlen(t)-1] == '\\') | |
625 | state = USAGE_CONTINUATION; | |
626 | else | |
627 | state = NORMAL; | |
628 | } | |
629 | ||
2c4104f0 | 630 | continue; |
37e2941d | 631 | } |
2c4104f0 LP |
632 | |
633 | if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { | |
634 | state = LSB; | |
23a177ef | 635 | s->sysv_has_lsb = true; |
2c4104f0 LP |
636 | continue; |
637 | } | |
638 | ||
639 | if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) { | |
640 | state = NORMAL; | |
641 | continue; | |
642 | } | |
643 | ||
644 | t++; | |
645 | t += strspn(t, WHITESPACE); | |
646 | ||
647 | if (state == NORMAL) { | |
648 | ||
649 | /* Try to parse Red Hat style chkconfig headers */ | |
650 | ||
c2b35af6 | 651 | if (startswith_no_case(t, "chkconfig:")) { |
2c4104f0 | 652 | int start_priority; |
8309400a | 653 | char runlevels[16], *k; |
2c4104f0 LP |
654 | |
655 | state = NORMAL; | |
656 | ||
8309400a LP |
657 | if (sscanf(t+10, "%15s %i %*i", |
658 | runlevels, | |
659 | &start_priority) != 2) { | |
2c4104f0 | 660 | |
66870f90 ZJS |
661 | log_warning_unit(u->id, |
662 | "[%s:%u] Failed to parse chkconfig line. Ignoring.", | |
663 | path, line); | |
2c4104f0 LP |
664 | continue; |
665 | } | |
666 | ||
fbe9f3a9 LP |
667 | /* A start priority gathered from the |
668 | * symlink farms is preferred over the | |
669 | * data from the LSB header. */ | |
8309400a | 670 | if (start_priority < 0 || start_priority > 99) |
66870f90 ZJS |
671 | log_warning_unit(u->id, |
672 | "[%s:%u] Start priority out of range. Ignoring.", | |
673 | path, line); | |
ea87ca5a | 674 | else |
8309400a LP |
675 | s->sysv_start_priority = start_priority; |
676 | ||
677 | char_array_0(runlevels); | |
678 | k = delete_chars(runlevels, WHITESPACE "-"); | |
679 | ||
680 | if (k[0]) { | |
681 | char *d; | |
682 | ||
683 | if (!(d = strdup(k))) { | |
684 | r = -ENOMEM; | |
685 | goto finish; | |
686 | } | |
687 | ||
688 | free(s->sysv_runlevels); | |
689 | s->sysv_runlevels = d; | |
2c4104f0 LP |
690 | } |
691 | ||
0b5d26f9 | 692 | } else if (startswith_no_case(t, "description:")) { |
2c4104f0 LP |
693 | |
694 | size_t k = strlen(t); | |
695 | char *d; | |
0b5d26f9 | 696 | const char *j; |
2c4104f0 LP |
697 | |
698 | if (t[k-1] == '\\') { | |
699 | state = DESCRIPTION; | |
700 | t[k-1] = 0; | |
701 | } | |
702 | ||
0b5d26f9 LP |
703 | if ((j = strstrip(t+12)) && *j) { |
704 | if (!(d = strdup(j))) { | |
705 | r = -ENOMEM; | |
706 | goto finish; | |
707 | } | |
708 | } else | |
709 | d = NULL; | |
2c4104f0 | 710 | |
0b5d26f9 LP |
711 | free(chkconfig_description); |
712 | chkconfig_description = d; | |
2c4104f0 | 713 | |
c2b35af6 | 714 | } else if (startswith_no_case(t, "pidfile:")) { |
2c4104f0 LP |
715 | |
716 | char *fn; | |
717 | ||
718 | state = NORMAL; | |
719 | ||
720 | fn = strstrip(t+8); | |
721 | if (!path_is_absolute(fn)) { | |
66870f90 ZJS |
722 | log_warning_unit(u->id, |
723 | "[%s:%u] PID file not absolute. Ignoring.", | |
724 | path, line); | |
2c4104f0 LP |
725 | continue; |
726 | } | |
727 | ||
728 | if (!(fn = strdup(fn))) { | |
729 | r = -ENOMEM; | |
730 | goto finish; | |
731 | } | |
732 | ||
733 | free(s->pid_file); | |
734 | s->pid_file = fn; | |
735 | } | |
736 | ||
737 | } else if (state == DESCRIPTION) { | |
738 | ||
739 | /* Try to parse Red Hat style description | |
740 | * continuation */ | |
741 | ||
742 | size_t k = strlen(t); | |
0b5d26f9 | 743 | char *j; |
2c4104f0 LP |
744 | |
745 | if (t[k-1] == '\\') | |
746 | t[k-1] = 0; | |
747 | else | |
748 | state = NORMAL; | |
749 | ||
0b5d26f9 LP |
750 | if ((j = strstrip(t)) && *j) { |
751 | char *d = NULL; | |
752 | ||
753 | if (chkconfig_description) | |
b7def684 | 754 | d = strjoin(chkconfig_description, " ", j, NULL); |
0b5d26f9 LP |
755 | else |
756 | d = strdup(j); | |
2c4104f0 | 757 | |
0b5d26f9 LP |
758 | if (!d) { |
759 | r = -ENOMEM; | |
760 | goto finish; | |
761 | } | |
762 | ||
763 | free(chkconfig_description); | |
764 | chkconfig_description = d; | |
765 | } | |
2c4104f0 LP |
766 | |
767 | } else if (state == LSB || state == LSB_DESCRIPTION) { | |
768 | ||
c2b35af6 | 769 | if (startswith_no_case(t, "Provides:")) { |
2c4104f0 LP |
770 | char *i, *w; |
771 | size_t z; | |
772 | ||
773 | state = LSB; | |
774 | ||
f60f22df | 775 | FOREACH_WORD_QUOTED(w, z, t+9, i) { |
2c4104f0 LP |
776 | char *n, *m; |
777 | ||
778 | if (!(n = strndup(w, z))) { | |
779 | r = -ENOMEM; | |
780 | goto finish; | |
781 | } | |
782 | ||
2b6bf07d | 783 | r = sysv_translate_facility(n, basename(path), &m); |
2c4104f0 LP |
784 | free(n); |
785 | ||
786 | if (r < 0) | |
787 | goto finish; | |
788 | ||
789 | if (r == 0) | |
790 | continue; | |
791 | ||
bd77d0fc | 792 | if (unit_name_to_type(m) == UNIT_SERVICE) |
ce2c2265 | 793 | r = unit_merge_by_name(u, m); |
9700edb4 LP |
794 | else |
795 | /* NB: SysV targets | |
796 | * which are provided | |
797 | * by a service are | |
798 | * pulled in by the | |
799 | * services, as an | |
800 | * indication that the | |
801 | * generic service is | |
802 | * now available. This | |
803 | * is strictly | |
804 | * one-way. The | |
805 | * targets do NOT pull | |
806 | * in the SysV | |
807 | * services! */ | |
808 | r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true); | |
bd77d0fc | 809 | |
2c4104f0 | 810 | if (r < 0) |
66870f90 ZJS |
811 | log_error_unit(u->id, |
812 | "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", | |
813 | path, line, m, strerror(-r)); | |
42a097a2 LP |
814 | |
815 | free(m); | |
2c4104f0 LP |
816 | } |
817 | ||
c2b35af6 LP |
818 | } else if (startswith_no_case(t, "Required-Start:") || |
819 | startswith_no_case(t, "Should-Start:") || | |
820 | startswith_no_case(t, "X-Start-Before:") || | |
821 | startswith_no_case(t, "X-Start-After:")) { | |
2c4104f0 LP |
822 | char *i, *w; |
823 | size_t z; | |
824 | ||
825 | state = LSB; | |
826 | ||
f60f22df | 827 | FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) { |
2c4104f0 LP |
828 | char *n, *m; |
829 | ||
830 | if (!(n = strndup(w, z))) { | |
831 | r = -ENOMEM; | |
832 | goto finish; | |
833 | } | |
834 | ||
2b6bf07d | 835 | r = sysv_translate_facility(n, basename(path), &m); |
e83c7c0b | 836 | if (r < 0) { |
66870f90 ZJS |
837 | log_error_unit(u->id, |
838 | "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", | |
839 | path, line, n, strerror(-r)); | |
e83c7c0b LP |
840 | free(n); |
841 | continue; | |
842 | } | |
843 | ||
844 | free(n); | |
2c4104f0 LP |
845 | |
846 | if (r == 0) | |
847 | continue; | |
848 | ||
c2b35af6 | 849 | r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true); |
2c4104f0 LP |
850 | |
851 | if (r < 0) | |
66870f90 ZJS |
852 | log_error_unit(u->id, "[%s:%u] Failed to add dependency on %s, ignoring: %s", |
853 | path, line, m, strerror(-r)); | |
42a097a2 LP |
854 | |
855 | free(m); | |
2c4104f0 | 856 | } |
c2b35af6 | 857 | } else if (startswith_no_case(t, "Default-Start:")) { |
8309400a LP |
858 | char *k, *d; |
859 | ||
860 | state = LSB; | |
861 | ||
862 | k = delete_chars(t+14, WHITESPACE "-"); | |
863 | ||
864 | if (k[0] != 0) { | |
865 | if (!(d = strdup(k))) { | |
866 | r = -ENOMEM; | |
867 | goto finish; | |
868 | } | |
869 | ||
870 | free(s->sysv_runlevels); | |
871 | s->sysv_runlevels = d; | |
872 | } | |
2c4104f0 | 873 | |
0b5d26f9 LP |
874 | } else if (startswith_no_case(t, "Description:")) { |
875 | char *d, *j; | |
ed4c1cc6 | 876 | |
2c4104f0 LP |
877 | state = LSB_DESCRIPTION; |
878 | ||
0b5d26f9 LP |
879 | if ((j = strstrip(t+12)) && *j) { |
880 | if (!(d = strdup(j))) { | |
881 | r = -ENOMEM; | |
882 | goto finish; | |
883 | } | |
884 | } else | |
885 | d = NULL; | |
2c4104f0 | 886 | |
0b5d26f9 LP |
887 | free(long_description); |
888 | long_description = d; | |
2c4104f0 | 889 | |
ed4c1cc6 | 890 | } else if (startswith_no_case(t, "Short-Description:")) { |
0b5d26f9 | 891 | char *d, *j; |
2c4104f0 | 892 | |
2c4104f0 LP |
893 | state = LSB; |
894 | ||
0b5d26f9 LP |
895 | if ((j = strstrip(t+18)) && *j) { |
896 | if (!(d = strdup(j))) { | |
897 | r = -ENOMEM; | |
898 | goto finish; | |
899 | } | |
900 | } else | |
901 | d = NULL; | |
2c4104f0 | 902 | |
0b5d26f9 LP |
903 | free(short_description); |
904 | short_description = d; | |
2c4104f0 LP |
905 | |
906 | } else if (state == LSB_DESCRIPTION) { | |
907 | ||
908 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
0b5d26f9 | 909 | char *j; |
2c4104f0 | 910 | |
0b5d26f9 LP |
911 | if ((j = strstrip(t)) && *j) { |
912 | char *d = NULL; | |
913 | ||
914 | if (long_description) | |
b7def684 | 915 | d = strjoin(long_description, " ", t, NULL); |
0b5d26f9 LP |
916 | else |
917 | d = strdup(j); | |
918 | ||
919 | if (!d) { | |
920 | r = -ENOMEM; | |
921 | goto finish; | |
922 | } | |
923 | ||
924 | free(long_description); | |
925 | long_description = d; | |
2c4104f0 LP |
926 | } |
927 | ||
2c4104f0 LP |
928 | } else |
929 | state = LSB; | |
930 | } | |
931 | } | |
932 | } | |
933 | ||
37e2941d | 934 | if ((r = sysv_exec_commands(s, supports_reload)) < 0) |
2c4104f0 LP |
935 | goto finish; |
936 | ||
a40eb732 | 937 | if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) { |
0bc824be LP |
938 | /* If there a runlevels configured for this service |
939 | * but none of the standard ones, then we assume this | |
940 | * is some special kind of service (which might be | |
941 | * needed for early boot) and don't create any links | |
942 | * to it. */ | |
943 | ||
1124fe6f | 944 | UNIT(s)->default_dependencies = false; |
09cd1ab1 | 945 | |
09cd1ab1 | 946 | /* Don't timeout special services during boot (like fsck) */ |
d568a335 MS |
947 | s->timeout_start_usec = 0; |
948 | s->timeout_stop_usec = 0; | |
949 | } else { | |
950 | s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC; | |
951 | s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC; | |
952 | } | |
953 | ||
80876c20 | 954 | /* Special setting for all SysV services */ |
1f48cf56 | 955 | s->type = SERVICE_FORKING; |
f8788303 | 956 | s->remain_after_exit = !s->pid_file; |
1835f23c | 957 | s->guess_main_pid = false; |
525ee6f4 | 958 | s->restart = SERVICE_RESTART_NO; |
353e12c2 | 959 | s->exec_context.ignore_sigpipe = false; |
4819ff03 | 960 | s->kill_context.kill_mode = KILL_PROCESS; |
80876c20 | 961 | |
0b5d26f9 LP |
962 | /* We use the long description only if |
963 | * no short description is set. */ | |
964 | ||
965 | if (short_description) | |
966 | description = short_description; | |
967 | else if (chkconfig_description) | |
968 | description = chkconfig_description; | |
969 | else if (long_description) | |
970 | description = long_description; | |
971 | else | |
972 | description = NULL; | |
973 | ||
974 | if (description) { | |
975 | char *d; | |
976 | ||
e527618d | 977 | if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) { |
0b5d26f9 LP |
978 | r = -ENOMEM; |
979 | goto finish; | |
980 | } | |
981 | ||
ac155bb8 | 982 | u->description = d; |
0b5d26f9 LP |
983 | } |
984 | ||
ea87ca5a LP |
985 | /* The priority that has been set in /etc/rcN.d/ hierarchies |
986 | * takes precedence over what is stored as default in the LSB | |
987 | * header */ | |
988 | if (s->sysv_start_priority_from_rcnd >= 0) | |
989 | s->sysv_start_priority = s->sysv_start_priority_from_rcnd; | |
990 | ||
ac155bb8 | 991 | u->load_state = UNIT_LOADED; |
23a177ef | 992 | r = 0; |
2c4104f0 LP |
993 | |
994 | finish: | |
995 | ||
996 | if (f) | |
997 | fclose(f); | |
998 | ||
0b5d26f9 LP |
999 | free(short_description); |
1000 | free(long_description); | |
1001 | free(chkconfig_description); | |
1002 | ||
2c4104f0 LP |
1003 | return r; |
1004 | } | |
1005 | ||
e537352b | 1006 | static int service_load_sysv_name(Service *s, const char *name) { |
2c4104f0 LP |
1007 | char **p; |
1008 | ||
1009 | assert(s); | |
1010 | assert(name); | |
1011 | ||
c2756a68 | 1012 | /* For SysV services we strip the *.sh suffixes. */ |
3f95f83c | 1013 | if (endswith(name, ".sh.service")) |
d017c6ca LP |
1014 | return -ENOENT; |
1015 | ||
1124fe6f | 1016 | STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) { |
2c4104f0 LP |
1017 | char *path; |
1018 | int r; | |
1019 | ||
b7def684 | 1020 | path = strjoin(*p, "/", name, NULL); |
44d91056 | 1021 | if (!path) |
2c4104f0 LP |
1022 | return -ENOMEM; |
1023 | ||
1024 | assert(endswith(path, ".service")); | |
1025 | path[strlen(path)-8] = 0; | |
1026 | ||
e537352b | 1027 | r = service_load_sysv_path(s, path); |
fbe9f3a9 | 1028 | |
1124fe6f | 1029 | if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) { |
20771ae3 | 1030 | /* Try *.sh source'able init scripts */ |
fbe9f3a9 LP |
1031 | strcat(path, ".sh"); |
1032 | r = service_load_sysv_path(s, path); | |
1033 | } | |
2c4104f0 LP |
1034 | free(path); |
1035 | ||
23a177ef | 1036 | if (r < 0) |
2c4104f0 | 1037 | return r; |
23a177ef | 1038 | |
88516c0c | 1039 | if (UNIT(s)->load_state != UNIT_STUB) |
23a177ef | 1040 | break; |
2c4104f0 LP |
1041 | } |
1042 | ||
1043 | return 0; | |
1044 | } | |
1045 | ||
e537352b | 1046 | static int service_load_sysv(Service *s) { |
2c4104f0 LP |
1047 | const char *t; |
1048 | Iterator i; | |
1049 | int r; | |
1050 | ||
5cb5a6ff LP |
1051 | assert(s); |
1052 | ||
1053 | /* Load service data from SysV init scripts, preferably with | |
1054 | * LSB headers ... */ | |
1055 | ||
1124fe6f | 1056 | if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path)) |
2c4104f0 LP |
1057 | return 0; |
1058 | ||
1124fe6f | 1059 | if ((t = UNIT(s)->id)) |
e537352b | 1060 | if ((r = service_load_sysv_name(s, t)) < 0) |
2c4104f0 LP |
1061 | return r; |
1062 | ||
1124fe6f MS |
1063 | if (UNIT(s)->load_state == UNIT_STUB) |
1064 | SET_FOREACH(t, UNIT(s)->names, i) { | |
1065 | if (t == UNIT(s)->id) | |
e537352b LP |
1066 | continue; |
1067 | ||
e364ad06 | 1068 | if ((r = service_load_sysv_name(s, t)) < 0) |
23a177ef LP |
1069 | return r; |
1070 | ||
1124fe6f | 1071 | if (UNIT(s)->load_state != UNIT_STUB) |
23a177ef LP |
1072 | break; |
1073 | } | |
2c4104f0 LP |
1074 | |
1075 | return 0; | |
5cb5a6ff | 1076 | } |
07459bb6 | 1077 | #endif |
5cb5a6ff | 1078 | |
243b1432 LP |
1079 | static int service_verify(Service *s) { |
1080 | assert(s); | |
1081 | ||
1124fe6f | 1082 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
1083 | return 0; |
1084 | ||
1085 | if (!s->exec_command[SERVICE_EXEC_START]) { | |
66870f90 ZJS |
1086 | log_error_unit(UNIT(s)->id, |
1087 | "%s lacks ExecStart setting. Refusing.", UNIT(s)->id); | |
243b1432 LP |
1088 | return -EINVAL; |
1089 | } | |
1090 | ||
34e9ba66 LP |
1091 | if (s->type != SERVICE_ONESHOT && |
1092 | s->exec_command[SERVICE_EXEC_START]->command_next) { | |
66870f90 ZJS |
1093 | log_error_unit(UNIT(s)->id, |
1094 | "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id); | |
6cf6bbc2 LP |
1095 | return -EINVAL; |
1096 | } | |
1097 | ||
b0693d30 MW |
1098 | if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { |
1099 | log_error_unit(UNIT(s)->id, | |
1100 | "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id); | |
1101 | return -EINVAL; | |
1102 | } | |
1103 | ||
05e343b7 | 1104 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
66870f90 ZJS |
1105 | log_error_unit(UNIT(s)->id, |
1106 | "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id); | |
4d0e5dbd LP |
1107 | return -EINVAL; |
1108 | } | |
1109 | ||
7e2668c6 | 1110 | if (s->bus_name && s->type != SERVICE_DBUS) |
66870f90 ZJS |
1111 | log_warning_unit(UNIT(s)->id, |
1112 | "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id); | |
7e2668c6 | 1113 | |
4819ff03 | 1114 | if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) { |
66870f90 ZJS |
1115 | log_error_unit(UNIT(s)->id, |
1116 | "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id); | |
05e343b7 LP |
1117 | return -EINVAL; |
1118 | } | |
1119 | ||
243b1432 LP |
1120 | return 0; |
1121 | } | |
1122 | ||
a40eb732 LP |
1123 | static int service_add_default_dependencies(Service *s) { |
1124 | int r; | |
1125 | ||
1126 | assert(s); | |
1127 | ||
1128 | /* Add a number of automatic dependencies useful for the | |
1129 | * majority of services. */ | |
1130 | ||
1131 | /* First, pull in base system */ | |
67445f4e | 1132 | if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) { |
117dcc57 ZJS |
1133 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, |
1134 | SPECIAL_BASIC_TARGET, NULL, true); | |
1135 | if (r < 0) | |
a40eb732 LP |
1136 | return r; |
1137 | ||
67445f4e | 1138 | } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) { |
117dcc57 ZJS |
1139 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, |
1140 | SPECIAL_SOCKETS_TARGET, NULL, true); | |
1141 | if (r < 0) | |
a40eb732 | 1142 | return r; |
e3d84721 LP |
1143 | |
1144 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, | |
1145 | SPECIAL_TIMERS_TARGET, NULL, true); | |
1146 | if (r < 0) | |
1147 | return r; | |
1148 | ||
1149 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, | |
1150 | SPECIAL_PATHS_TARGET, NULL, true); | |
1151 | if (r < 0) | |
1152 | return r; | |
a40eb732 LP |
1153 | } |
1154 | ||
1155 | /* Second, activate normal shutdown */ | |
117dcc57 ZJS |
1156 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, |
1157 | SPECIAL_SHUTDOWN_TARGET, NULL, true); | |
1158 | return r; | |
a40eb732 LP |
1159 | } |
1160 | ||
4dfc092a LP |
1161 | static void service_fix_output(Service *s) { |
1162 | assert(s); | |
1163 | ||
1164 | /* If nothing has been explicitly configured, patch default | |
1165 | * output in. If input is socket/tty we avoid this however, | |
1166 | * since in that case we want output to default to the same | |
1167 | * place as we read input from. */ | |
1168 | ||
1169 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
1170 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
1171 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 1172 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
1173 | |
1174 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
1175 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 1176 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
1177 | } |
1178 | ||
e537352b LP |
1179 | static int service_load(Unit *u) { |
1180 | int r; | |
1181 | Service *s = SERVICE(u); | |
1182 | ||
1183 | assert(s); | |
1e2e8133 | 1184 | |
5cb5a6ff | 1185 | /* Load a .service file */ |
c2756a68 LP |
1186 | r = unit_load_fragment(u); |
1187 | if (r < 0) | |
5cb5a6ff LP |
1188 | return r; |
1189 | ||
07459bb6 | 1190 | #ifdef HAVE_SYSV_COMPAT |
bd77d0fc | 1191 | /* Load a classic init script as a fallback, if we couldn't find anything */ |
c2756a68 LP |
1192 | if (u->load_state == UNIT_STUB) { |
1193 | r = service_load_sysv(s); | |
1194 | if (r < 0) | |
23a177ef | 1195 | return r; |
c2756a68 | 1196 | } |
07459bb6 | 1197 | #endif |
d46de8a1 | 1198 | |
23a177ef | 1199 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 1200 | if (u->load_state == UNIT_STUB) |
23a177ef | 1201 | return -ENOENT; |
034c6ed7 | 1202 | |
23a177ef | 1203 | /* This is a new unit? Then let's add in some extras */ |
ac155bb8 | 1204 | if (u->load_state == UNIT_LOADED) { |
c2756a68 LP |
1205 | |
1206 | /* We were able to load something, then let's add in | |
1207 | * the dropin directories. */ | |
1208 | r = unit_load_dropin(u); | |
1209 | if (r < 0) | |
1210 | return r; | |
1211 | ||
0b86feac LP |
1212 | if (s->type == _SERVICE_TYPE_INVALID) |
1213 | s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE; | |
1214 | ||
d568a335 MS |
1215 | /* Oneshot services have disabled start timeout by default */ |
1216 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
1217 | s->timeout_start_usec = 0; | |
98709151 | 1218 | |
4e2b0f9b LP |
1219 | service_fix_output(s); |
1220 | ||
117dcc57 ZJS |
1221 | r = unit_add_exec_dependencies(u, &s->exec_context); |
1222 | if (r < 0) | |
23a177ef LP |
1223 | return r; |
1224 | ||
a016b922 LP |
1225 | r = unit_add_default_slice(u); |
1226 | if (r < 0) | |
1227 | return r; | |
1228 | ||
07459bb6 | 1229 | #ifdef HAVE_SYSV_COMPAT |
117dcc57 ZJS |
1230 | r = sysv_fix_order(s); |
1231 | if (r < 0) | |
23a177ef | 1232 | return r; |
07459bb6 | 1233 | #endif |
05e343b7 | 1234 | |
718db961 LP |
1235 | if (s->bus_name) { |
1236 | r = unit_watch_bus_name(u, s->bus_name); | |
1237 | if (r < 0) | |
a40eb732 | 1238 | return r; |
718db961 | 1239 | } |
c952c6ec LP |
1240 | |
1241 | if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) | |
1242 | s->notify_access = NOTIFY_MAIN; | |
a40eb732 | 1243 | |
02c4ef9c LP |
1244 | if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) |
1245 | s->notify_access = NOTIFY_MAIN; | |
1246 | ||
117dcc57 ZJS |
1247 | if (s->type == SERVICE_DBUS || s->bus_name) { |
1248 | r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, | |
1249 | SPECIAL_DBUS_SOCKET, NULL, true); | |
1250 | if (r < 0) | |
a40eb732 | 1251 | return r; |
117dcc57 | 1252 | } |
a40eb732 | 1253 | |
117dcc57 ZJS |
1254 | if (UNIT(s)->default_dependencies) { |
1255 | r = service_add_default_dependencies(s); | |
1256 | if (r < 0) | |
a40eb732 | 1257 | return r; |
117dcc57 | 1258 | } |
e06c73cc | 1259 | |
cba6e062 | 1260 | r = unit_exec_context_defaults(u, &s->exec_context); |
e06c73cc LP |
1261 | if (r < 0) |
1262 | return r; | |
8e274523 LP |
1263 | } |
1264 | ||
243b1432 | 1265 | return service_verify(s); |
034c6ed7 LP |
1266 | } |
1267 | ||
87f0e418 | 1268 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 1269 | |
5cb5a6ff | 1270 | ServiceExecCommand c; |
87f0e418 | 1271 | Service *s = SERVICE(u); |
47be870b | 1272 | const char *prefix2; |
7fd1b19b | 1273 | _cleanup_free_ char *p2 = NULL; |
5cb5a6ff LP |
1274 | |
1275 | assert(s); | |
1276 | ||
47be870b LP |
1277 | p2 = strappend(prefix, "\t"); |
1278 | prefix2 = p2 ? p2 : prefix; | |
44d8db9e | 1279 | |
5cb5a6ff | 1280 | fprintf(f, |
81a2b7ce | 1281 | "%sService State: %s\n" |
f42806df LP |
1282 | "%sResult: %s\n" |
1283 | "%sReload Result: %s\n" | |
81a2b7ce | 1284 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 1285 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 1286 | "%sRemainAfterExit: %s\n" |
3185a36b | 1287 | "%sGuessMainPID: %s\n" |
c952c6ec | 1288 | "%sType: %s\n" |
2cf3143a | 1289 | "%sRestart: %s\n" |
c952c6ec | 1290 | "%sNotifyAccess: %s\n", |
81a2b7ce | 1291 | prefix, service_state_to_string(s->state), |
f42806df LP |
1292 | prefix, service_result_to_string(s->result), |
1293 | prefix, service_result_to_string(s->reload_result), | |
81a2b7ce | 1294 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 1295 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 1296 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 1297 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 1298 | prefix, service_type_to_string(s->type), |
2cf3143a | 1299 | prefix, service_restart_to_string(s->restart), |
c952c6ec | 1300 | prefix, notify_access_to_string(s->notify_access)); |
5cb5a6ff | 1301 | |
70123e68 LP |
1302 | if (s->control_pid > 0) |
1303 | fprintf(f, | |
bb00e604 LP |
1304 | "%sControl PID: %lu\n", |
1305 | prefix, (unsigned long) s->control_pid); | |
70123e68 LP |
1306 | |
1307 | if (s->main_pid > 0) | |
1308 | fprintf(f, | |
6dfa5494 LP |
1309 | "%sMain PID: %lu\n" |
1310 | "%sMain PID Known: %s\n" | |
1311 | "%sMain PID Alien: %s\n", | |
1312 | prefix, (unsigned long) s->main_pid, | |
1313 | prefix, yes_no(s->main_pid_known), | |
1314 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 1315 | |
034c6ed7 LP |
1316 | if (s->pid_file) |
1317 | fprintf(f, | |
1318 | "%sPIDFile: %s\n", | |
1319 | prefix, s->pid_file); | |
1320 | ||
05e343b7 LP |
1321 | if (s->bus_name) |
1322 | fprintf(f, | |
1323 | "%sBusName: %s\n" | |
1324 | "%sBus Name Good: %s\n", | |
1325 | prefix, s->bus_name, | |
1326 | prefix, yes_no(s->bus_name_good)); | |
1327 | ||
4819ff03 | 1328 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
1329 | exec_context_dump(&s->exec_context, f, prefix); |
1330 | ||
e537352b | 1331 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 1332 | |
44d8db9e LP |
1333 | if (!s->exec_command[c]) |
1334 | continue; | |
1335 | ||
40d50879 | 1336 | fprintf(f, "%s-> %s:\n", |
94f04347 | 1337 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
1338 | |
1339 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 1340 | } |
44d8db9e | 1341 | |
07459bb6 | 1342 | #ifdef HAVE_SYSV_COMPAT |
1b64d026 | 1343 | if (s->is_sysv) |
2c4104f0 | 1344 | fprintf(f, |
9fff8a1f LP |
1345 | "%sSysV Init Script has LSB Header: %s\n" |
1346 | "%sSysVEnabled: %s\n", | |
9fff8a1f LP |
1347 | prefix, yes_no(s->sysv_has_lsb), |
1348 | prefix, yes_no(s->sysv_enabled)); | |
2c4104f0 LP |
1349 | |
1350 | if (s->sysv_start_priority >= 0) | |
1351 | fprintf(f, | |
9fff8a1f LP |
1352 | "%sSysVStartPriority: %i\n", |
1353 | prefix, s->sysv_start_priority); | |
2c4104f0 | 1354 | |
8309400a LP |
1355 | if (s->sysv_runlevels) |
1356 | fprintf(f, "%sSysVRunLevels: %s\n", | |
1357 | prefix, s->sysv_runlevels); | |
07459bb6 | 1358 | #endif |
23a177ef | 1359 | |
8c47c732 LP |
1360 | if (s->status_text) |
1361 | fprintf(f, "%sStatus Text: %s\n", | |
1362 | prefix, s->status_text); | |
5cb5a6ff LP |
1363 | } |
1364 | ||
c5419d42 | 1365 | static int service_load_pid_file(Service *s, bool may_warn) { |
7fd1b19b | 1366 | _cleanup_free_ char *k = NULL; |
034c6ed7 | 1367 | int r; |
5925dd3c | 1368 | pid_t pid; |
034c6ed7 LP |
1369 | |
1370 | assert(s); | |
1371 | ||
034c6ed7 | 1372 | if (!s->pid_file) |
13230d5d | 1373 | return -ENOENT; |
034c6ed7 | 1374 | |
117dcc57 ZJS |
1375 | r = read_one_line_file(s->pid_file, &k); |
1376 | if (r < 0) { | |
c5419d42 | 1377 | if (may_warn) |
66870f90 ZJS |
1378 | log_info_unit(UNIT(s)->id, |
1379 | "PID file %s not readable (yet?) after %s.", | |
1380 | s->pid_file, service_state_to_string(s->state)); | |
034c6ed7 | 1381 | return r; |
5375410b | 1382 | } |
034c6ed7 | 1383 | |
5925dd3c | 1384 | r = parse_pid(k, &pid); |
bc41f93e ZJS |
1385 | if (r < 0) { |
1386 | if (may_warn) | |
1387 | log_info_unit(UNIT(s)->id, | |
1388 | "Failed to read PID from file %s: %s", | |
1389 | s->pid_file, strerror(-r)); | |
5925dd3c | 1390 | return r; |
bc41f93e | 1391 | } |
406eaf93 | 1392 | |
5925dd3c | 1393 | if (kill(pid, 0) < 0 && errno != EPERM) { |
c5419d42 | 1394 | if (may_warn) |
66870f90 ZJS |
1395 | log_info_unit(UNIT(s)->id, |
1396 | "PID %lu read from file %s does not exist.", | |
1397 | (unsigned long) pid, s->pid_file); | |
b8c597d5 LP |
1398 | return -ESRCH; |
1399 | } | |
1400 | ||
db01f8b3 MS |
1401 | if (s->main_pid_known) { |
1402 | if (pid == s->main_pid) | |
1403 | return 0; | |
1404 | ||
66870f90 ZJS |
1405 | log_debug_unit(UNIT(s)->id, |
1406 | "Main PID changing: %lu -> %lu", | |
1407 | (unsigned long) s->main_pid, (unsigned long) pid); | |
db01f8b3 MS |
1408 | service_unwatch_main_pid(s); |
1409 | s->main_pid_known = false; | |
3a111838 | 1410 | } else |
66870f90 ZJS |
1411 | log_debug_unit(UNIT(s)->id, |
1412 | "Main PID loaded: %lu", (unsigned long) pid); | |
db01f8b3 | 1413 | |
117dcc57 ZJS |
1414 | r = service_set_main_pid(s, pid); |
1415 | if (r < 0) | |
16f6025e LP |
1416 | return r; |
1417 | ||
117dcc57 | 1418 | r = unit_watch_pid(UNIT(s), pid); |
bc41f93e | 1419 | if (r < 0) { |
5925dd3c | 1420 | /* FIXME: we need to do something here */ |
bc41f93e ZJS |
1421 | log_warning_unit(UNIT(s)->id, |
1422 | "Failed to watch PID %lu from service %s", | |
1423 | (unsigned long) pid, UNIT(s)->id); | |
5925dd3c | 1424 | return r; |
bc41f93e | 1425 | } |
034c6ed7 LP |
1426 | |
1427 | return 0; | |
1428 | } | |
1429 | ||
4fbf50b3 LP |
1430 | static int service_search_main_pid(Service *s) { |
1431 | pid_t pid; | |
1432 | int r; | |
1433 | ||
1434 | assert(s); | |
1435 | ||
3185a36b LP |
1436 | /* If we know it anyway, don't ever fallback to unreliable |
1437 | * heuristics */ | |
4fbf50b3 LP |
1438 | if (s->main_pid_known) |
1439 | return 0; | |
1440 | ||
3185a36b LP |
1441 | if (!s->guess_main_pid) |
1442 | return 0; | |
1443 | ||
4fbf50b3 LP |
1444 | assert(s->main_pid <= 0); |
1445 | ||
4ad49000 | 1446 | pid = unit_search_main_pid(UNIT(s)); |
117dcc57 | 1447 | if (pid <= 0) |
4fbf50b3 LP |
1448 | return -ENOENT; |
1449 | ||
66870f90 ZJS |
1450 | log_debug_unit(UNIT(s)->id, |
1451 | "Main PID guessed: %lu", (unsigned long) pid); | |
117dcc57 ZJS |
1452 | r = service_set_main_pid(s, pid); |
1453 | if (r < 0) | |
4fbf50b3 LP |
1454 | return r; |
1455 | ||
117dcc57 ZJS |
1456 | r = unit_watch_pid(UNIT(s), pid); |
1457 | if (r < 0) | |
4fbf50b3 | 1458 | /* FIXME: we need to do something here */ |
a827e373 ZJS |
1459 | log_warning_unit(UNIT(s)->id, |
1460 | "Failed to watch PID %lu from service %s", | |
1461 | (unsigned long) pid, UNIT(s)->id); | |
4fbf50b3 LP |
1462 | return r; |
1463 | ||
1464 | return 0; | |
1465 | } | |
1466 | ||
034c6ed7 LP |
1467 | static void service_set_state(Service *s, ServiceState state) { |
1468 | ServiceState old_state; | |
e056b01d | 1469 | const UnitActiveState *table; |
842129f5 | 1470 | |
5cb5a6ff LP |
1471 | assert(s); |
1472 | ||
e056b01d LP |
1473 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
1474 | ||
034c6ed7 | 1475 | old_state = s->state; |
5cb5a6ff | 1476 | s->state = state; |
034c6ed7 | 1477 | |
3a111838 MS |
1478 | service_unwatch_pid_file(s); |
1479 | ||
842129f5 LP |
1480 | if (!IN_SET(state, |
1481 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1482 | SERVICE_RELOAD, | |
1483 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1484 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, | |
1485 | SERVICE_AUTO_RESTART)) | |
718db961 | 1486 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 | 1487 | |
842129f5 LP |
1488 | if (!IN_SET(state, |
1489 | SERVICE_START, SERVICE_START_POST, | |
1490 | SERVICE_RUNNING, SERVICE_RELOAD, | |
1491 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL)) { | |
5e94833f | 1492 | service_unwatch_main_pid(s); |
867b3b7d LP |
1493 | s->main_command = NULL; |
1494 | } | |
034c6ed7 | 1495 | |
842129f5 LP |
1496 | if (!IN_SET(state, |
1497 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1498 | SERVICE_RELOAD, | |
1499 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1500 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { | |
5e94833f | 1501 | service_unwatch_control_pid(s); |
034c6ed7 | 1502 | s->control_command = NULL; |
a16e1123 | 1503 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 1504 | } |
034c6ed7 | 1505 | |
842129f5 LP |
1506 | if (!IN_SET(state, |
1507 | SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, | |
1508 | SERVICE_RUNNING, SERVICE_RELOAD, | |
1509 | SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, | |
1510 | SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && | |
1124fe6f | 1511 | !(state == SERVICE_DEAD && UNIT(s)->job)) { |
4f2d528d | 1512 | service_close_socket_fd(s); |
6cf6bbc2 LP |
1513 | service_connection_unref(s); |
1514 | } | |
4f2d528d | 1515 | |
842129f5 | 1516 | if (IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
a6927d7f MO |
1517 | service_stop_watchdog(s); |
1518 | ||
f6023656 LP |
1519 | /* For the inactive states unit_notify() will trim the cgroup, |
1520 | * but for exit we have to do that ourselves... */ | |
1124fe6f | 1521 | if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0) |
4ad49000 | 1522 | unit_destroy_cgroup(UNIT(s)); |
f6023656 | 1523 | |
9cd86184 OB |
1524 | /* For remain_after_exit services, let's see if we can "release" the |
1525 | * hold on the console, since unit_notify() only does that in case of | |
1526 | * change of state */ | |
1527 | if (state == SERVICE_EXITED && s->remain_after_exit && | |
1528 | UNIT(s)->manager->n_on_console > 0) { | |
1529 | ExecContext *ec = unit_get_exec_context(UNIT(s)); | |
1530 | if (ec && exec_context_may_touch_console(ec)) { | |
1531 | Manager *m = UNIT(s)->manager; | |
1532 | ||
1533 | m->n_on_console --; | |
1534 | if (m->n_on_console == 0) | |
1535 | /* unset no_console_output flag, since the console is free */ | |
1536 | m->no_console_output = false; | |
1537 | } | |
1538 | } | |
1539 | ||
e537352b | 1540 | if (old_state != state) |
842129f5 | 1541 | 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 | 1542 | |
e056b01d | 1543 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
f42806df | 1544 | s->reload_result = SERVICE_SUCCESS; |
034c6ed7 LP |
1545 | } |
1546 | ||
a16e1123 LP |
1547 | static int service_coldplug(Unit *u) { |
1548 | Service *s = SERVICE(u); | |
1549 | int r; | |
1550 | ||
1551 | assert(s); | |
1552 | assert(s->state == SERVICE_DEAD); | |
1553 | ||
1554 | if (s->deserialized_state != s->state) { | |
1555 | ||
1556 | if (s->deserialized_state == SERVICE_START_PRE || | |
1557 | s->deserialized_state == SERVICE_START || | |
1558 | s->deserialized_state == SERVICE_START_POST || | |
1559 | s->deserialized_state == SERVICE_RELOAD || | |
1560 | s->deserialized_state == SERVICE_STOP || | |
1561 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1562 | s->deserialized_state == SERVICE_STOP_SIGKILL || | |
1563 | s->deserialized_state == SERVICE_STOP_POST || | |
1564 | s->deserialized_state == SERVICE_FINAL_SIGTERM || | |
92c1622e LP |
1565 | s->deserialized_state == SERVICE_FINAL_SIGKILL) { |
1566 | ||
1567 | usec_t k; | |
6c12b52e | 1568 | |
92c1622e LP |
1569 | k = s->deserialized_state == SERVICE_START_PRE || s->deserialized_state == SERVICE_START || |
1570 | s->deserialized_state == SERVICE_START_POST || s->deserialized_state == SERVICE_RELOAD ? | |
1571 | s->timeout_start_usec : s->timeout_stop_usec; | |
e558336f | 1572 | |
92c1622e LP |
1573 | /* For the start/stop timeouts 0 means off */ |
1574 | if (k > 0) { | |
1575 | r = service_arm_timer(s, k); | |
36697dc0 | 1576 | if (r < 0) |
e558336f LP |
1577 | return r; |
1578 | } | |
1579 | } | |
a16e1123 | 1580 | |
92c1622e LP |
1581 | if (s->deserialized_state == SERVICE_AUTO_RESTART) { |
1582 | ||
1583 | /* The restart timeouts 0 means immediately */ | |
1584 | r = service_arm_timer(s, s->restart_usec); | |
1585 | if (r < 0) | |
1586 | return r; | |
1587 | } | |
1588 | ||
a16e1123 LP |
1589 | if ((s->deserialized_state == SERVICE_START && |
1590 | (s->type == SERVICE_FORKING || | |
8c47c732 | 1591 | s->type == SERVICE_DBUS || |
34e9ba66 | 1592 | s->type == SERVICE_ONESHOT || |
8c47c732 | 1593 | s->type == SERVICE_NOTIFY)) || |
a16e1123 LP |
1594 | s->deserialized_state == SERVICE_START_POST || |
1595 | s->deserialized_state == SERVICE_RUNNING || | |
1596 | s->deserialized_state == SERVICE_RELOAD || | |
1597 | s->deserialized_state == SERVICE_STOP || | |
1598 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1599 | s->deserialized_state == SERVICE_STOP_SIGKILL) | |
117dcc57 ZJS |
1600 | if (s->main_pid > 0) { |
1601 | r = unit_watch_pid(UNIT(s), s->main_pid); | |
1602 | if (r < 0) | |
a16e1123 | 1603 | return r; |
117dcc57 | 1604 | } |
a16e1123 LP |
1605 | |
1606 | if (s->deserialized_state == SERVICE_START_PRE || | |
1607 | s->deserialized_state == SERVICE_START || | |
1608 | s->deserialized_state == SERVICE_START_POST || | |
1609 | s->deserialized_state == SERVICE_RELOAD || | |
1610 | s->deserialized_state == SERVICE_STOP || | |
1611 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1612 | s->deserialized_state == SERVICE_STOP_SIGKILL || | |
1613 | s->deserialized_state == SERVICE_STOP_POST || | |
1614 | s->deserialized_state == SERVICE_FINAL_SIGTERM || | |
1615 | s->deserialized_state == SERVICE_FINAL_SIGKILL) | |
117dcc57 ZJS |
1616 | if (s->control_pid > 0) { |
1617 | r = unit_watch_pid(UNIT(s), s->control_pid); | |
1618 | if (r < 0) | |
a16e1123 | 1619 | return r; |
117dcc57 | 1620 | } |
a16e1123 | 1621 | |
842129f5 LP |
1622 | if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) |
1623 | service_start_watchdog(s); | |
bb242b7b | 1624 | |
a16e1123 LP |
1625 | service_set_state(s, s->deserialized_state); |
1626 | } | |
92c1622e | 1627 | |
a16e1123 LP |
1628 | return 0; |
1629 | } | |
1630 | ||
44d8db9e LP |
1631 | static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { |
1632 | Iterator i; | |
1633 | int r; | |
1634 | int *rfds = NULL; | |
1635 | unsigned rn_fds = 0; | |
57020a3a | 1636 | Unit *u; |
44d8db9e LP |
1637 | |
1638 | assert(s); | |
1639 | assert(fds); | |
1640 | assert(n_fds); | |
1641 | ||
6cf6bbc2 LP |
1642 | if (s->socket_fd >= 0) |
1643 | return 0; | |
1644 | ||
1124fe6f | 1645 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
44d8db9e LP |
1646 | int *cfds; |
1647 | unsigned cn_fds; | |
57020a3a LP |
1648 | Socket *sock; |
1649 | ||
ac155bb8 | 1650 | if (u->type != UNIT_SOCKET) |
57020a3a LP |
1651 | continue; |
1652 | ||
1653 | sock = SOCKET(u); | |
44d8db9e | 1654 | |
117dcc57 ZJS |
1655 | r = socket_collect_fds(sock, &cfds, &cn_fds); |
1656 | if (r < 0) | |
44d8db9e LP |
1657 | goto fail; |
1658 | ||
1659 | if (!cfds) | |
1660 | continue; | |
1661 | ||
1662 | if (!rfds) { | |
1663 | rfds = cfds; | |
1664 | rn_fds = cn_fds; | |
1665 | } else { | |
1666 | int *t; | |
1667 | ||
117dcc57 ZJS |
1668 | t = new(int, rn_fds+cn_fds); |
1669 | if (!t) { | |
44d8db9e LP |
1670 | free(cfds); |
1671 | r = -ENOMEM; | |
1672 | goto fail; | |
1673 | } | |
1674 | ||
9c1b183c LP |
1675 | memcpy(t, rfds, rn_fds * sizeof(int)); |
1676 | memcpy(t+rn_fds, cfds, cn_fds * sizeof(int)); | |
44d8db9e LP |
1677 | free(rfds); |
1678 | free(cfds); | |
1679 | ||
1680 | rfds = t; | |
1681 | rn_fds = rn_fds+cn_fds; | |
1682 | } | |
1683 | } | |
1684 | ||
1685 | *fds = rfds; | |
1686 | *n_fds = rn_fds; | |
3e33402a | 1687 | |
44d8db9e LP |
1688 | return 0; |
1689 | ||
1690 | fail: | |
1691 | free(rfds); | |
3e33402a | 1692 | |
44d8db9e LP |
1693 | return r; |
1694 | } | |
1695 | ||
81a2b7ce LP |
1696 | static int service_spawn( |
1697 | Service *s, | |
1698 | ExecCommand *c, | |
1699 | bool timeout, | |
1700 | bool pass_fds, | |
1701 | bool apply_permissions, | |
1702 | bool apply_chroot, | |
1e3ad081 | 1703 | bool apply_tty_stdin, |
c952c6ec | 1704 | bool set_notify_socket, |
ecedd90f | 1705 | bool is_control, |
81a2b7ce LP |
1706 | pid_t *_pid) { |
1707 | ||
034c6ed7 LP |
1708 | pid_t pid; |
1709 | int r; | |
117dcc57 | 1710 | int *fds = NULL; |
7fd1b19b | 1711 | _cleanup_free_ int *fdsbuf = NULL; |
2105e76a | 1712 | unsigned n_fds = 0, n_env = 0; |
7fd1b19b | 1713 | _cleanup_strv_free_ char |
117dcc57 | 1714 | **argv = NULL, **final_env = NULL, **our_env = NULL; |
4ad49000 | 1715 | const char *path; |
034c6ed7 LP |
1716 | |
1717 | assert(s); | |
1718 | assert(c); | |
1719 | assert(_pid); | |
1720 | ||
4ad49000 LP |
1721 | unit_realize_cgroup(UNIT(s)); |
1722 | ||
613b411c LP |
1723 | r = unit_setup_exec_runtime(UNIT(s)); |
1724 | if (r < 0) | |
1725 | goto fail; | |
1726 | ||
6cf6bbc2 LP |
1727 | if (pass_fds || |
1728 | s->exec_context.std_input == EXEC_INPUT_SOCKET || | |
1729 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1730 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1731 | ||
4f2d528d LP |
1732 | if (s->socket_fd >= 0) { |
1733 | fds = &s->socket_fd; | |
1734 | n_fds = 1; | |
6cf6bbc2 | 1735 | } else { |
117dcc57 ZJS |
1736 | r = service_collect_fds(s, &fdsbuf, &n_fds); |
1737 | if (r < 0) | |
6cf6bbc2 LP |
1738 | goto fail; |
1739 | ||
1740 | fds = fdsbuf; | |
1741 | } | |
4f2d528d | 1742 | } |
44d8db9e | 1743 | |
92c1622e LP |
1744 | if (timeout && s->timeout_start_usec > 0) { |
1745 | r = service_arm_timer(s, s->timeout_start_usec); | |
1746 | if (r < 0) | |
1747 | goto fail; | |
1748 | } else | |
1749 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
034c6ed7 | 1750 | |
19f6d710 LP |
1751 | r = unit_full_printf_strv(UNIT(s), c->argv, &argv); |
1752 | if (r < 0) | |
9e2f7c11 | 1753 | goto fail; |
9e2f7c11 | 1754 | |
97ae63e2 LP |
1755 | our_env = new0(char*, 5); |
1756 | if (!our_env) { | |
2105e76a LP |
1757 | r = -ENOMEM; |
1758 | goto fail; | |
1759 | } | |
c952c6ec | 1760 | |
2105e76a | 1761 | if (set_notify_socket) |
1124fe6f | 1762 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) { |
c952c6ec LP |
1763 | r = -ENOMEM; |
1764 | goto fail; | |
1765 | } | |
1766 | ||
2105e76a LP |
1767 | if (s->main_pid > 0) |
1768 | if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) { | |
c952c6ec LP |
1769 | r = -ENOMEM; |
1770 | goto fail; | |
1771 | } | |
2105e76a | 1772 | |
6e0bcc98 MO |
1773 | if (s->watchdog_usec > 0) |
1774 | if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) { | |
1775 | r = -ENOMEM; | |
1776 | goto fail; | |
1777 | } | |
1778 | ||
4ad49000 | 1779 | if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM) |
97ae63e2 LP |
1780 | if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) { |
1781 | r = -ENOMEM; | |
1782 | goto fail; | |
1783 | } | |
1784 | ||
1785 | final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL); | |
1786 | if (!final_env) { | |
2105e76a LP |
1787 | r = -ENOMEM; |
1788 | goto fail; | |
1789 | } | |
c952c6ec | 1790 | |
4ad49000 LP |
1791 | if (is_control && UNIT(s)->cgroup_path) { |
1792 | path = strappenda(UNIT(s)->cgroup_path, "/control"); | |
1793 | cg_create(SYSTEMD_CGROUP_CONTROLLER, path); | |
1794 | } else | |
1795 | path = UNIT(s)->cgroup_path; | |
1796 | ||
9e2f7c11 LP |
1797 | r = exec_spawn(c, |
1798 | argv, | |
1799 | &s->exec_context, | |
1800 | fds, n_fds, | |
2105e76a | 1801 | final_env, |
9e2f7c11 LP |
1802 | apply_permissions, |
1803 | apply_chroot, | |
1e3ad081 | 1804 | apply_tty_stdin, |
1124fe6f | 1805 | UNIT(s)->manager->confirm_spawn, |
13b84ec7 | 1806 | UNIT(s)->manager->cgroup_supported, |
4ad49000 | 1807 | path, |
62bca2c6 | 1808 | UNIT(s)->id, |
f2b68789 | 1809 | s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL, |
613b411c | 1810 | s->exec_runtime, |
9e2f7c11 | 1811 | &pid); |
9e2f7c11 | 1812 | if (r < 0) |
034c6ed7 LP |
1813 | goto fail; |
1814 | ||
117dcc57 ZJS |
1815 | r = unit_watch_pid(UNIT(s), pid); |
1816 | if (r < 0) | |
034c6ed7 LP |
1817 | /* FIXME: we need to do something here */ |
1818 | goto fail; | |
1819 | ||
1820 | *_pid = pid; | |
1821 | ||
5cb5a6ff | 1822 | return 0; |
034c6ed7 LP |
1823 | |
1824 | fail: | |
1825 | if (timeout) | |
718db961 | 1826 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
034c6ed7 LP |
1827 | |
1828 | return r; | |
1829 | } | |
1830 | ||
80876c20 LP |
1831 | static int main_pid_good(Service *s) { |
1832 | assert(s); | |
1833 | ||
1834 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1835 | * don't know */ | |
1836 | ||
1837 | /* If we know the pid file, then lets just check if it is | |
1838 | * still valid */ | |
6dfa5494 LP |
1839 | if (s->main_pid_known) { |
1840 | ||
1841 | /* If it's an alien child let's check if it is still | |
1842 | * alive ... */ | |
62220cf7 | 1843 | if (s->main_pid_alien && s->main_pid > 0) |
6dfa5494 LP |
1844 | return kill(s->main_pid, 0) >= 0 || errno != ESRCH; |
1845 | ||
1846 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1847 | * which we really should wait for to collect exit | |
1848 | * status and code */ | |
80876c20 | 1849 | return s->main_pid > 0; |
6dfa5494 | 1850 | } |
80876c20 LP |
1851 | |
1852 | /* We don't know the pid */ | |
1853 | return -EAGAIN; | |
1854 | } | |
1855 | ||
44a6b1b6 | 1856 | _pure_ static int control_pid_good(Service *s) { |
80876c20 LP |
1857 | assert(s); |
1858 | ||
1859 | return s->control_pid > 0; | |
1860 | } | |
1861 | ||
1862 | static int cgroup_good(Service *s) { | |
1863 | int r; | |
1864 | ||
1865 | assert(s); | |
1866 | ||
4ad49000 LP |
1867 | if (!UNIT(s)->cgroup_path) |
1868 | return 0; | |
1869 | ||
1870 | r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true); | |
117dcc57 | 1871 | if (r < 0) |
80876c20 LP |
1872 | return r; |
1873 | ||
1874 | return !r; | |
1875 | } | |
1876 | ||
f42806df | 1877 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 LP |
1878 | int r; |
1879 | assert(s); | |
1880 | ||
f42806df LP |
1881 | if (f != SERVICE_SUCCESS) |
1882 | s->result = f; | |
034c6ed7 | 1883 | |
0c7f15b3 MS |
1884 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1885 | ||
034c6ed7 | 1886 | if (allow_restart && |
47342320 | 1887 | !s->forbid_restart && |
034c6ed7 | 1888 | (s->restart == SERVICE_RESTART_ALWAYS || |
f42806df LP |
1889 | (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) || |
1890 | (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) || | |
dc99a976 | 1891 | (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) || |
f42806df | 1892 | (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL || |
96342de6 LN |
1893 | s->result == SERVICE_FAILURE_CORE_DUMP))) && |
1894 | (s->result != SERVICE_FAILURE_EXIT_CODE || | |
1895 | !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) && | |
1896 | (s->result != SERVICE_FAILURE_SIGNAL || | |
718db961 | 1897 | !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))) { |
034c6ed7 | 1898 | |
718db961 | 1899 | r = service_arm_timer(s, s->restart_usec); |
f42806df | 1900 | if (r < 0) |
034c6ed7 LP |
1901 | goto fail; |
1902 | ||
1903 | service_set_state(s, SERVICE_AUTO_RESTART); | |
0c7f15b3 | 1904 | } |
034c6ed7 | 1905 | |
47342320 LP |
1906 | s->forbid_restart = false; |
1907 | ||
c17ec25e | 1908 | /* we want fresh tmpdirs in case service is started again immediately */ |
613b411c LP |
1909 | exec_runtime_destroy(s->exec_runtime); |
1910 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
c17ec25e | 1911 | |
9285c9ff LN |
1912 | /* Try to delete the pid file. At this point it will be |
1913 | * out-of-date, and some software might be confused by it, so | |
1914 | * let's remove it. */ | |
1915 | if (s->pid_file) | |
1916 | unlink_noerrno(s->pid_file); | |
1917 | ||
034c6ed7 LP |
1918 | return; |
1919 | ||
1920 | fail: | |
66870f90 ZJS |
1921 | log_warning_unit(UNIT(s)->id, |
1922 | "%s failed to run install restart timer: %s", | |
1923 | UNIT(s)->id, strerror(-r)); | |
f42806df | 1924 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1925 | } |
1926 | ||
f42806df | 1927 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1928 | int r; |
1929 | assert(s); | |
1930 | ||
f42806df LP |
1931 | if (f != SERVICE_SUCCESS) |
1932 | s->result = f; | |
034c6ed7 | 1933 | |
5e94833f LP |
1934 | service_unwatch_control_pid(s); |
1935 | ||
117dcc57 ZJS |
1936 | s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; |
1937 | if (s->control_command) { | |
867b3b7d LP |
1938 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1939 | ||
ecedd90f LP |
1940 | r = service_spawn(s, |
1941 | s->control_command, | |
1942 | true, | |
1943 | false, | |
1944 | !s->permissions_start_only, | |
1945 | !s->root_directory_start_only, | |
1946 | true, | |
1947 | false, | |
1948 | true, | |
1949 | &s->control_pid); | |
1950 | if (r < 0) | |
034c6ed7 LP |
1951 | goto fail; |
1952 | ||
d6ea93e3 | 1953 | |
80876c20 LP |
1954 | service_set_state(s, SERVICE_STOP_POST); |
1955 | } else | |
c961869a | 1956 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1957 | |
1958 | return; | |
1959 | ||
1960 | fail: | |
66870f90 ZJS |
1961 | log_warning_unit(UNIT(s)->id, |
1962 | "%s failed to run 'stop-post' task: %s", | |
1963 | UNIT(s)->id, strerror(-r)); | |
f42806df | 1964 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1965 | } |
1966 | ||
f42806df | 1967 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1968 | int r; |
034c6ed7 LP |
1969 | |
1970 | assert(s); | |
1971 | ||
f42806df LP |
1972 | if (f != SERVICE_SUCCESS) |
1973 | s->result = f; | |
034c6ed7 | 1974 | |
cd2086fe LP |
1975 | r = unit_kill_context( |
1976 | UNIT(s), | |
1977 | &s->kill_context, | |
1978 | state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM, | |
1979 | s->main_pid, | |
1980 | s->control_pid, | |
1981 | s->main_pid_alien); | |
1982 | if (r < 0) | |
1983 | goto fail; | |
034c6ed7 | 1984 | |
cd2086fe | 1985 | if (r > 0) { |
d568a335 | 1986 | if (s->timeout_stop_usec > 0) { |
718db961 | 1987 | r = service_arm_timer(s, s->timeout_stop_usec); |
d568a335 | 1988 | if (r < 0) |
e558336f | 1989 | goto fail; |
d568a335 | 1990 | } |
d6ea93e3 | 1991 | |
80876c20 LP |
1992 | service_set_state(s, state); |
1993 | } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) | |
f42806df | 1994 | service_enter_stop_post(s, SERVICE_SUCCESS); |
80876c20 | 1995 | else |
f42806df | 1996 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
1997 | |
1998 | return; | |
1999 | ||
2000 | fail: | |
66870f90 ZJS |
2001 | log_warning_unit(UNIT(s)->id, |
2002 | "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r)); | |
034c6ed7 | 2003 | |
80876c20 | 2004 | if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) |
f42806df | 2005 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2006 | else |
f42806df | 2007 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2008 | } |
2009 | ||
f42806df | 2010 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 2011 | int r; |
5925dd3c | 2012 | |
034c6ed7 LP |
2013 | assert(s); |
2014 | ||
f42806df LP |
2015 | if (f != SERVICE_SUCCESS) |
2016 | s->result = f; | |
034c6ed7 | 2017 | |
5e94833f LP |
2018 | service_unwatch_control_pid(s); |
2019 | ||
117dcc57 ZJS |
2020 | s->control_command = s->exec_command[SERVICE_EXEC_STOP]; |
2021 | if (s->control_command) { | |
867b3b7d LP |
2022 | s->control_command_id = SERVICE_EXEC_STOP; |
2023 | ||
ecedd90f LP |
2024 | r = service_spawn(s, |
2025 | s->control_command, | |
2026 | true, | |
2027 | false, | |
2028 | !s->permissions_start_only, | |
2029 | !s->root_directory_start_only, | |
2030 | false, | |
2031 | false, | |
2032 | true, | |
2033 | &s->control_pid); | |
2034 | if (r < 0) | |
034c6ed7 LP |
2035 | goto fail; |
2036 | ||
80876c20 LP |
2037 | service_set_state(s, SERVICE_STOP); |
2038 | } else | |
f42806df | 2039 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
2040 | |
2041 | return; | |
2042 | ||
2043 | fail: | |
66870f90 ZJS |
2044 | log_warning_unit(UNIT(s)->id, |
2045 | "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2046 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2047 | } |
2048 | ||
f42806df | 2049 | static void service_enter_running(Service *s, ServiceResult f) { |
4eab639f | 2050 | int main_pid_ok, cgroup_ok; |
80876c20 LP |
2051 | assert(s); |
2052 | ||
f42806df LP |
2053 | if (f != SERVICE_SUCCESS) |
2054 | s->result = f; | |
80876c20 | 2055 | |
4eab639f LP |
2056 | main_pid_ok = main_pid_good(s); |
2057 | cgroup_ok = cgroup_good(s); | |
2058 | ||
2059 | if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) && | |
05e343b7 | 2060 | (s->bus_name_good || s->type != SERVICE_DBUS)) |
80876c20 | 2061 | service_set_state(s, SERVICE_RUNNING); |
02ee865a | 2062 | else if (s->remain_after_exit) |
80876c20 LP |
2063 | service_set_state(s, SERVICE_EXITED); |
2064 | else | |
f42806df | 2065 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
2066 | } |
2067 | ||
034c6ed7 LP |
2068 | static void service_enter_start_post(Service *s) { |
2069 | int r; | |
2070 | assert(s); | |
2071 | ||
5e94833f | 2072 | service_unwatch_control_pid(s); |
842129f5 | 2073 | service_reset_watchdog(s); |
bb242b7b | 2074 | |
117dcc57 ZJS |
2075 | s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; |
2076 | if (s->control_command) { | |
867b3b7d LP |
2077 | s->control_command_id = SERVICE_EXEC_START_POST; |
2078 | ||
ecedd90f LP |
2079 | r = service_spawn(s, |
2080 | s->control_command, | |
2081 | true, | |
2082 | false, | |
2083 | !s->permissions_start_only, | |
2084 | !s->root_directory_start_only, | |
2085 | false, | |
2086 | false, | |
2087 | true, | |
2088 | &s->control_pid); | |
2089 | if (r < 0) | |
034c6ed7 LP |
2090 | goto fail; |
2091 | ||
80876c20 LP |
2092 | service_set_state(s, SERVICE_START_POST); |
2093 | } else | |
f42806df | 2094 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2095 | |
2096 | return; | |
2097 | ||
2098 | fail: | |
66870f90 ZJS |
2099 | log_warning_unit(UNIT(s)->id, |
2100 | "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2101 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2102 | } |
2103 | ||
4ad49000 LP |
2104 | static void service_kill_control_processes(Service *s) { |
2105 | char *p; | |
2106 | ||
2107 | if (!UNIT(s)->cgroup_path) | |
2108 | return; | |
2109 | ||
2110 | p = strappenda(UNIT(s)->cgroup_path, "/control"); | |
4ad49000 LP |
2111 | cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL); |
2112 | } | |
2113 | ||
034c6ed7 | 2114 | static void service_enter_start(Service *s) { |
4ad49000 | 2115 | ExecCommand *c; |
034c6ed7 LP |
2116 | pid_t pid; |
2117 | int r; | |
2118 | ||
2119 | assert(s); | |
2120 | ||
2121 | assert(s->exec_command[SERVICE_EXEC_START]); | |
34e9ba66 | 2122 | assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT); |
034c6ed7 | 2123 | |
41efeaec LP |
2124 | service_unwatch_control_pid(s); |
2125 | service_unwatch_main_pid(s); | |
80876c20 | 2126 | |
8f53a7b8 LP |
2127 | /* We want to ensure that nobody leaks processes from |
2128 | * START_PRE here, so let's go on a killing spree, People | |
2129 | * should not spawn long running processes from START_PRE. */ | |
4ad49000 | 2130 | service_kill_control_processes(s); |
8f53a7b8 | 2131 | |
867b3b7d LP |
2132 | if (s->type == SERVICE_FORKING) { |
2133 | s->control_command_id = SERVICE_EXEC_START; | |
2134 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
2135 | ||
2136 | s->main_command = NULL; | |
2137 | } else { | |
2138 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2139 | s->control_command = NULL; | |
2140 | ||
2141 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
2142 | } | |
34e9ba66 | 2143 | |
ecedd90f LP |
2144 | r = service_spawn(s, |
2145 | c, | |
117dcc57 ZJS |
2146 | s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || |
2147 | s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT, | |
ecedd90f LP |
2148 | true, |
2149 | true, | |
2150 | true, | |
2151 | true, | |
2152 | s->notify_access != NOTIFY_NONE, | |
2153 | false, | |
2154 | &pid); | |
2155 | if (r < 0) | |
034c6ed7 LP |
2156 | goto fail; |
2157 | ||
f2b68789 | 2158 | if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) { |
034c6ed7 LP |
2159 | /* For simple services we immediately start |
2160 | * the START_POST binaries. */ | |
2161 | ||
5925dd3c | 2162 | service_set_main_pid(s, pid); |
034c6ed7 LP |
2163 | service_enter_start_post(s); |
2164 | ||
2165 | } else if (s->type == SERVICE_FORKING) { | |
2166 | ||
2167 | /* For forking services we wait until the start | |
2168 | * process exited. */ | |
2169 | ||
e55224ca | 2170 | s->control_pid = pid; |
80876c20 LP |
2171 | service_set_state(s, SERVICE_START); |
2172 | ||
34e9ba66 | 2173 | } else if (s->type == SERVICE_ONESHOT || |
8c47c732 LP |
2174 | s->type == SERVICE_DBUS || |
2175 | s->type == SERVICE_NOTIFY) { | |
7d55e835 | 2176 | |
34e9ba66 | 2177 | /* For oneshot services we wait until the start |
7d55e835 LP |
2178 | * process exited, too, but it is our main process. */ |
2179 | ||
05e343b7 | 2180 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
2181 | * but wait for the bus name to appear on the |
2182 | * bus. Notify services are similar. */ | |
05e343b7 | 2183 | |
5925dd3c | 2184 | service_set_main_pid(s, pid); |
80876c20 | 2185 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
2186 | } else |
2187 | assert_not_reached("Unknown service type"); | |
2188 | ||
2189 | return; | |
2190 | ||
2191 | fail: | |
66870f90 ZJS |
2192 | log_warning_unit(UNIT(s)->id, |
2193 | "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2194 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2195 | } |
2196 | ||
2197 | static void service_enter_start_pre(Service *s) { | |
2198 | int r; | |
2199 | ||
2200 | assert(s); | |
2201 | ||
5e94833f LP |
2202 | service_unwatch_control_pid(s); |
2203 | ||
117dcc57 ZJS |
2204 | s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; |
2205 | if (s->control_command) { | |
8f53a7b8 LP |
2206 | /* Before we start anything, let's clear up what might |
2207 | * be left from previous runs. */ | |
4ad49000 | 2208 | service_kill_control_processes(s); |
8f53a7b8 | 2209 | |
867b3b7d LP |
2210 | s->control_command_id = SERVICE_EXEC_START_PRE; |
2211 | ||
ecedd90f LP |
2212 | r = service_spawn(s, |
2213 | s->control_command, | |
2214 | true, | |
2215 | false, | |
2216 | !s->permissions_start_only, | |
2217 | !s->root_directory_start_only, | |
2218 | true, | |
2219 | false, | |
2220 | true, | |
2221 | &s->control_pid); | |
2222 | if (r < 0) | |
034c6ed7 LP |
2223 | goto fail; |
2224 | ||
80876c20 LP |
2225 | service_set_state(s, SERVICE_START_PRE); |
2226 | } else | |
034c6ed7 LP |
2227 | service_enter_start(s); |
2228 | ||
2229 | return; | |
2230 | ||
2231 | fail: | |
66870f90 ZJS |
2232 | log_warning_unit(UNIT(s)->id, |
2233 | "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2234 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2235 | } |
2236 | ||
2237 | static void service_enter_restart(Service *s) { | |
718db961 | 2238 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 | 2239 | int r; |
398ef8ba | 2240 | |
034c6ed7 LP |
2241 | assert(s); |
2242 | ||
a8bb2e65 LP |
2243 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
2244 | /* Don't restart things if we are going down anyway */ | |
66870f90 ZJS |
2245 | log_info_unit(UNIT(s)->id, |
2246 | "Stop job pending for unit, delaying automatic restart."); | |
2edfa366 | 2247 | |
718db961 | 2248 | r = service_arm_timer(s, s->restart_usec); |
a8bb2e65 | 2249 | if (r < 0) |
2edfa366 | 2250 | goto fail; |
feae8adb DW |
2251 | |
2252 | return; | |
2edfa366 LP |
2253 | } |
2254 | ||
48bb5876 DW |
2255 | /* Any units that are bound to this service must also be |
2256 | * restarted. We use JOB_RESTART (instead of the more obvious | |
2257 | * JOB_START) here so that those dependency jobs will be added | |
2258 | * as well. */ | |
2259 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL); | |
2260 | if (r < 0) | |
034c6ed7 LP |
2261 | goto fail; |
2262 | ||
a8bb2e65 LP |
2263 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
2264 | * it will be canceled as part of the service_stop() call that | |
2265 | * is executed as part of JOB_RESTART. */ | |
2266 | ||
66870f90 ZJS |
2267 | log_debug_unit(UNIT(s)->id, |
2268 | "%s scheduled restart job.", UNIT(s)->id); | |
034c6ed7 LP |
2269 | return; |
2270 | ||
2271 | fail: | |
66870f90 ZJS |
2272 | log_warning_unit(UNIT(s)->id, |
2273 | "%s failed to schedule restart job: %s", | |
718db961 | 2274 | UNIT(s)->id, bus_error_message(&error, -r)); |
f42806df | 2275 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
2276 | } |
2277 | ||
2278 | static void service_enter_reload(Service *s) { | |
2279 | int r; | |
2280 | ||
2281 | assert(s); | |
2282 | ||
5e94833f LP |
2283 | service_unwatch_control_pid(s); |
2284 | ||
117dcc57 ZJS |
2285 | s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; |
2286 | if (s->control_command) { | |
867b3b7d LP |
2287 | s->control_command_id = SERVICE_EXEC_RELOAD; |
2288 | ||
ecedd90f LP |
2289 | r = service_spawn(s, |
2290 | s->control_command, | |
2291 | true, | |
2292 | false, | |
2293 | !s->permissions_start_only, | |
2294 | !s->root_directory_start_only, | |
2295 | false, | |
2296 | false, | |
2297 | true, | |
2298 | &s->control_pid); | |
2299 | if (r < 0) | |
034c6ed7 LP |
2300 | goto fail; |
2301 | ||
80876c20 LP |
2302 | service_set_state(s, SERVICE_RELOAD); |
2303 | } else | |
f42806df | 2304 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2305 | |
2306 | return; | |
2307 | ||
2308 | fail: | |
66870f90 ZJS |
2309 | log_warning_unit(UNIT(s)->id, |
2310 | "%s failed to run 'reload' task: %s", | |
2311 | UNIT(s)->id, strerror(-r)); | |
f42806df LP |
2312 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2313 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2314 | } |
2315 | ||
f42806df | 2316 | static void service_run_next_control(Service *s) { |
034c6ed7 LP |
2317 | int r; |
2318 | ||
2319 | assert(s); | |
2320 | assert(s->control_command); | |
2321 | assert(s->control_command->command_next); | |
2322 | ||
34e9ba66 | 2323 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2324 | |
34e9ba66 | 2325 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2326 | service_unwatch_control_pid(s); |
2327 | ||
ecedd90f LP |
2328 | r = service_spawn(s, |
2329 | s->control_command, | |
2330 | true, | |
2331 | false, | |
2332 | !s->permissions_start_only, | |
2333 | !s->root_directory_start_only, | |
2334 | s->control_command_id == SERVICE_EXEC_START_PRE || | |
2335 | s->control_command_id == SERVICE_EXEC_STOP_POST, | |
2336 | false, | |
2337 | true, | |
2338 | &s->control_pid); | |
2339 | if (r < 0) | |
034c6ed7 LP |
2340 | goto fail; |
2341 | ||
2342 | return; | |
2343 | ||
2344 | fail: | |
66870f90 ZJS |
2345 | log_warning_unit(UNIT(s)->id, |
2346 | "%s failed to run next control task: %s", | |
2347 | UNIT(s)->id, strerror(-r)); | |
034c6ed7 | 2348 | |
80876c20 | 2349 | if (s->state == SERVICE_START_PRE) |
f42806df | 2350 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
80876c20 | 2351 | else if (s->state == SERVICE_STOP) |
f42806df | 2352 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2353 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2354 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2355 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2356 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2357 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2358 | } else |
f42806df | 2359 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2360 | } |
2361 | ||
f42806df | 2362 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2363 | pid_t pid; |
2364 | int r; | |
2365 | ||
2366 | assert(s); | |
867b3b7d LP |
2367 | assert(s->main_command); |
2368 | assert(s->main_command->command_next); | |
2369 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2370 | |
867b3b7d | 2371 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2372 | service_unwatch_main_pid(s); |
2373 | ||
ecedd90f LP |
2374 | r = service_spawn(s, |
2375 | s->main_command, | |
98709151 | 2376 | true, |
ecedd90f LP |
2377 | true, |
2378 | true, | |
2379 | true, | |
2380 | true, | |
2381 | s->notify_access != NOTIFY_NONE, | |
2382 | false, | |
2383 | &pid); | |
2384 | if (r < 0) | |
34e9ba66 LP |
2385 | goto fail; |
2386 | ||
2387 | service_set_main_pid(s, pid); | |
2388 | ||
2389 | return; | |
2390 | ||
2391 | fail: | |
66870f90 ZJS |
2392 | log_warning_unit(UNIT(s)->id, |
2393 | "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r)); | |
f42806df | 2394 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2395 | } |
2396 | ||
4b939747 MO |
2397 | static int service_start_limit_test(Service *s) { |
2398 | assert(s); | |
2399 | ||
2400 | if (ratelimit_test(&s->start_limit)) | |
2401 | return 0; | |
2402 | ||
2403 | switch (s->start_limit_action) { | |
2404 | ||
2405 | case SERVICE_START_LIMIT_NONE: | |
66870f90 ZJS |
2406 | log_warning_unit(UNIT(s)->id, |
2407 | "%s start request repeated too quickly, refusing to start.", | |
2408 | UNIT(s)->id); | |
4b939747 MO |
2409 | break; |
2410 | ||
2411 | case SERVICE_START_LIMIT_REBOOT: { | |
718db961 | 2412 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
4b939747 MO |
2413 | int r; |
2414 | ||
66870f90 ZJS |
2415 | log_warning_unit(UNIT(s)->id, |
2416 | "%s start request repeated too quickly, rebooting.", UNIT(s)->id); | |
4b939747 | 2417 | |
117dcc57 ZJS |
2418 | r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, |
2419 | SPECIAL_REBOOT_TARGET, JOB_REPLACE, | |
2420 | true, &error, NULL); | |
718db961 | 2421 | if (r < 0) |
66870f90 | 2422 | log_error_unit(UNIT(s)->id, |
718db961 | 2423 | "Failed to reboot: %s.", bus_error_message(&error, r)); |
4b939747 MO |
2424 | |
2425 | break; | |
2426 | } | |
2427 | ||
2428 | case SERVICE_START_LIMIT_REBOOT_FORCE: | |
66870f90 ZJS |
2429 | log_warning_unit(UNIT(s)->id, |
2430 | "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id); | |
4b939747 MO |
2431 | UNIT(s)->manager->exit_code = MANAGER_REBOOT; |
2432 | break; | |
2433 | ||
2434 | case SERVICE_START_LIMIT_REBOOT_IMMEDIATE: | |
66870f90 ZJS |
2435 | log_warning_unit(UNIT(s)->id, |
2436 | "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id); | |
0049f05a | 2437 | sync(); |
4b939747 MO |
2438 | reboot(RB_AUTOBOOT); |
2439 | break; | |
2440 | ||
2441 | default: | |
66870f90 ZJS |
2442 | log_error_unit(UNIT(s)->id, |
2443 | "start limit action=%i", s->start_limit_action); | |
4b939747 MO |
2444 | assert_not_reached("Unknown StartLimitAction."); |
2445 | } | |
2446 | ||
2447 | return -ECANCELED; | |
2448 | } | |
2449 | ||
87f0e418 LP |
2450 | static int service_start(Unit *u) { |
2451 | Service *s = SERVICE(u); | |
4b939747 | 2452 | int r; |
5cb5a6ff LP |
2453 | |
2454 | assert(s); | |
2455 | ||
034c6ed7 LP |
2456 | /* We cannot fulfill this request right now, try again later |
2457 | * please! */ | |
2458 | if (s->state == SERVICE_STOP || | |
2459 | s->state == SERVICE_STOP_SIGTERM || | |
2460 | s->state == SERVICE_STOP_SIGKILL || | |
2461 | s->state == SERVICE_STOP_POST || | |
2462 | s->state == SERVICE_FINAL_SIGTERM || | |
2463 | s->state == SERVICE_FINAL_SIGKILL) | |
5cb5a6ff LP |
2464 | return -EAGAIN; |
2465 | ||
034c6ed7 LP |
2466 | /* Already on it! */ |
2467 | if (s->state == SERVICE_START_PRE || | |
2468 | s->state == SERVICE_START || | |
2469 | s->state == SERVICE_START_POST) | |
2470 | return 0; | |
2471 | ||
2e9d6c12 | 2472 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2473 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2474 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2475 | * service should be manually restarted, not started. We |
2476 | * simply return EAGAIN here, so that any start jobs stay | |
2477 | * queued, and assume that the auto restart timer will | |
2478 | * eventually trigger the restart. */ | |
2479 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2480 | return -EAGAIN; |
2e9d6c12 DW |
2481 | |
2482 | assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED); | |
5cb5a6ff | 2483 | |
1e2e8133 | 2484 | /* Make sure we don't enter a busy loop of some kind. */ |
4b939747 | 2485 | r = service_start_limit_test(s); |
c2f34808 | 2486 | if (r < 0) { |
8d1b002a | 2487 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false); |
4b939747 | 2488 | return r; |
c2f34808 | 2489 | } |
1e2e8133 | 2490 | |
f42806df LP |
2491 | s->result = SERVICE_SUCCESS; |
2492 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2493 | s->main_pid_known = false; |
6dfa5494 | 2494 | s->main_pid_alien = false; |
47342320 | 2495 | s->forbid_restart = false; |
034c6ed7 LP |
2496 | |
2497 | service_enter_start_pre(s); | |
2498 | return 0; | |
5cb5a6ff LP |
2499 | } |
2500 | ||
87f0e418 LP |
2501 | static int service_stop(Unit *u) { |
2502 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2503 | |
2504 | assert(s); | |
2505 | ||
f0c7b229 | 2506 | /* Don't create restart jobs from here. */ |
47342320 | 2507 | s->forbid_restart = true; |
034c6ed7 | 2508 | |
e537352b LP |
2509 | /* Already on it */ |
2510 | if (s->state == SERVICE_STOP || | |
2511 | s->state == SERVICE_STOP_SIGTERM || | |
2512 | s->state == SERVICE_STOP_SIGKILL || | |
2513 | s->state == SERVICE_STOP_POST || | |
2514 | s->state == SERVICE_FINAL_SIGTERM || | |
2515 | s->state == SERVICE_FINAL_SIGKILL) | |
2516 | return 0; | |
2517 | ||
f0c7b229 | 2518 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2519 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2520 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2521 | return 0; |
2522 | } | |
2523 | ||
3f6c78dc LP |
2524 | /* If there's already something running we go directly into |
2525 | * kill mode. */ | |
2526 | if (s->state == SERVICE_START_PRE || | |
2527 | s->state == SERVICE_START || | |
2528 | s->state == SERVICE_START_POST || | |
2529 | s->state == SERVICE_RELOAD) { | |
f42806df | 2530 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2531 | return 0; |
2532 | } | |
5cb5a6ff | 2533 | |
3f6c78dc LP |
2534 | assert(s->state == SERVICE_RUNNING || |
2535 | s->state == SERVICE_EXITED); | |
3a762661 | 2536 | |
f42806df | 2537 | service_enter_stop(s, SERVICE_SUCCESS); |
5cb5a6ff LP |
2538 | return 0; |
2539 | } | |
2540 | ||
87f0e418 LP |
2541 | static int service_reload(Unit *u) { |
2542 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2543 | |
2544 | assert(s); | |
2545 | ||
80876c20 | 2546 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
2547 | |
2548 | service_enter_reload(s); | |
5cb5a6ff LP |
2549 | return 0; |
2550 | } | |
2551 | ||
44a6b1b6 | 2552 | _pure_ static bool service_can_reload(Unit *u) { |
87f0e418 | 2553 | Service *s = SERVICE(u); |
034c6ed7 LP |
2554 | |
2555 | assert(s); | |
2556 | ||
2557 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2558 | } | |
2559 | ||
a16e1123 LP |
2560 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2561 | Service *s = SERVICE(u); | |
2562 | ||
2563 | assert(u); | |
2564 | assert(f); | |
2565 | assert(fds); | |
2566 | ||
2567 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
2568 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
2569 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2570 | |
2571 | if (s->control_pid > 0) | |
117dcc57 ZJS |
2572 | unit_serialize_item_format(u, f, "control-pid", "%lu", |
2573 | (unsigned long) s->control_pid); | |
a16e1123 | 2574 | |
5925dd3c LP |
2575 | if (s->main_pid_known && s->main_pid > 0) |
2576 | unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid); | |
a16e1123 LP |
2577 | |
2578 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
2579 | ||
3a2776bc LP |
2580 | if (s->status_text) |
2581 | unit_serialize_item(u, f, "status-text", s->status_text); | |
2582 | ||
cfc4eb4c LP |
2583 | /* FIXME: There's a minor uncleanliness here: if there are |
2584 | * multiple commands attached here, we will start from the | |
2585 | * first one again */ | |
a16e1123 | 2586 | if (s->control_command_id >= 0) |
117dcc57 ZJS |
2587 | unit_serialize_item(u, f, "control-command", |
2588 | service_exec_command_to_string(s->control_command_id)); | |
a16e1123 LP |
2589 | |
2590 | if (s->socket_fd >= 0) { | |
2591 | int copy; | |
2592 | ||
2593 | if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0) | |
2594 | return copy; | |
2595 | ||
2596 | unit_serialize_item_format(u, f, "socket-fd", "%i", copy); | |
2597 | } | |
2598 | ||
ecdbca40 | 2599 | if (s->main_exec_status.pid > 0) { |
117dcc57 ZJS |
2600 | unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", |
2601 | (unsigned long) s->main_exec_status.pid); | |
2602 | dual_timestamp_serialize(f, "main-exec-status-start", | |
2603 | &s->main_exec_status.start_timestamp); | |
2604 | dual_timestamp_serialize(f, "main-exec-status-exit", | |
2605 | &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2606 | |
799fd0fd | 2607 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
117dcc57 ZJS |
2608 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", |
2609 | s->main_exec_status.code); | |
2610 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", | |
2611 | s->main_exec_status.status); | |
ecdbca40 LP |
2612 | } |
2613 | } | |
a6927d7f | 2614 | if (dual_timestamp_is_set(&s->watchdog_timestamp)) |
842129f5 | 2615 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); |
ecdbca40 | 2616 | |
6aca9a58 | 2617 | if (s->forbid_restart) |
8d1a2802 | 2618 | unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); |
6aca9a58 | 2619 | |
a16e1123 LP |
2620 | return 0; |
2621 | } | |
2622 | ||
2623 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
2624 | Service *s = SERVICE(u); | |
a16e1123 LP |
2625 | |
2626 | assert(u); | |
2627 | assert(key); | |
2628 | assert(value); | |
2629 | assert(fds); | |
2630 | ||
2631 | if (streq(key, "state")) { | |
2632 | ServiceState state; | |
2633 | ||
117dcc57 ZJS |
2634 | state = service_state_from_string(value); |
2635 | if (state < 0) | |
66870f90 | 2636 | log_debug_unit(u->id, "Failed to parse state value %s", value); |
a16e1123 LP |
2637 | else |
2638 | s->deserialized_state = state; | |
f42806df LP |
2639 | } else if (streq(key, "result")) { |
2640 | ServiceResult f; | |
2641 | ||
2642 | f = service_result_from_string(value); | |
2643 | if (f < 0) | |
66870f90 | 2644 | log_debug_unit(u->id, "Failed to parse result value %s", value); |
f42806df LP |
2645 | else if (f != SERVICE_SUCCESS) |
2646 | s->result = f; | |
2647 | ||
2648 | } else if (streq(key, "reload-result")) { | |
2649 | ServiceResult f; | |
2650 | ||
2651 | f = service_result_from_string(value); | |
2652 | if (f < 0) | |
66870f90 | 2653 | log_debug_unit(u->id, "Failed to parse reload result value %s", value); |
f42806df LP |
2654 | else if (f != SERVICE_SUCCESS) |
2655 | s->reload_result = f; | |
a16e1123 | 2656 | |
a16e1123 | 2657 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2658 | pid_t pid; |
a16e1123 | 2659 | |
e364ad06 | 2660 | if (parse_pid(value, &pid) < 0) |
66870f90 | 2661 | log_debug_unit(u->id, "Failed to parse control-pid value %s", value); |
a16e1123 | 2662 | else |
e55224ca | 2663 | s->control_pid = pid; |
a16e1123 | 2664 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2665 | pid_t pid; |
a16e1123 | 2666 | |
e364ad06 | 2667 | if (parse_pid(value, &pid) < 0) |
66870f90 | 2668 | log_debug_unit(u->id, "Failed to parse main-pid value %s", value); |
7400b9d2 LP |
2669 | else { |
2670 | service_set_main_pid(s, pid); | |
2671 | unit_watch_pid(UNIT(s), pid); | |
2672 | } | |
a16e1123 LP |
2673 | } else if (streq(key, "main-pid-known")) { |
2674 | int b; | |
2675 | ||
117dcc57 ZJS |
2676 | b = parse_boolean(value); |
2677 | if (b < 0) | |
66870f90 | 2678 | log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value); |
a16e1123 LP |
2679 | else |
2680 | s->main_pid_known = b; | |
3a2776bc LP |
2681 | } else if (streq(key, "status-text")) { |
2682 | char *t; | |
2683 | ||
117dcc57 ZJS |
2684 | t = strdup(value); |
2685 | if (!t) | |
2686 | log_oom(); | |
2687 | else { | |
3a2776bc LP |
2688 | free(s->status_text); |
2689 | s->status_text = t; | |
2690 | } | |
2691 | ||
a16e1123 LP |
2692 | } else if (streq(key, "control-command")) { |
2693 | ServiceExecCommand id; | |
2694 | ||
117dcc57 ZJS |
2695 | id = service_exec_command_from_string(value); |
2696 | if (id < 0) | |
66870f90 | 2697 | log_debug_unit(u->id, "Failed to parse exec-command value %s", value); |
a16e1123 LP |
2698 | else { |
2699 | s->control_command_id = id; | |
2700 | s->control_command = s->exec_command[id]; | |
2701 | } | |
2702 | } else if (streq(key, "socket-fd")) { | |
2703 | int fd; | |
2704 | ||
2705 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
66870f90 | 2706 | log_debug_unit(u->id, "Failed to parse socket-fd value %s", value); |
a16e1123 LP |
2707 | else { |
2708 | ||
2709 | if (s->socket_fd >= 0) | |
2710 | close_nointr_nofail(s->socket_fd); | |
2711 | s->socket_fd = fdset_remove(fds, fd); | |
2712 | } | |
ecdbca40 LP |
2713 | } else if (streq(key, "main-exec-status-pid")) { |
2714 | pid_t pid; | |
2715 | ||
e364ad06 | 2716 | if (parse_pid(value, &pid) < 0) |
66870f90 | 2717 | log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value); |
ecdbca40 LP |
2718 | else |
2719 | s->main_exec_status.pid = pid; | |
2720 | } else if (streq(key, "main-exec-status-code")) { | |
2721 | int i; | |
2722 | ||
e364ad06 | 2723 | if (safe_atoi(value, &i) < 0) |
66870f90 | 2724 | log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value); |
ecdbca40 LP |
2725 | else |
2726 | s->main_exec_status.code = i; | |
2727 | } else if (streq(key, "main-exec-status-status")) { | |
2728 | int i; | |
2729 | ||
e364ad06 | 2730 | if (safe_atoi(value, &i) < 0) |
66870f90 | 2731 | log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value); |
ecdbca40 LP |
2732 | else |
2733 | s->main_exec_status.status = i; | |
799fd0fd LP |
2734 | } else if (streq(key, "main-exec-status-start")) |
2735 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
2736 | else if (streq(key, "main-exec-status-exit")) | |
2737 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
2738 | else if (streq(key, "watchdog-timestamp")) |
2739 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
613b411c | 2740 | else if (streq(key, "forbid-restart")) { |
6aca9a58 SE |
2741 | int b; |
2742 | ||
2743 | b = parse_boolean(value); | |
2744 | if (b < 0) | |
8d1a2802 | 2745 | log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value); |
6aca9a58 SE |
2746 | else |
2747 | s->forbid_restart = b; | |
c17ec25e | 2748 | } else |
66870f90 | 2749 | log_debug_unit(u->id, "Unknown serialization key '%s'", key); |
a16e1123 LP |
2750 | |
2751 | return 0; | |
2752 | } | |
2753 | ||
44a6b1b6 | 2754 | _pure_ static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
2755 | const UnitActiveState *table; |
2756 | ||
87f0e418 | 2757 | assert(u); |
5cb5a6ff | 2758 | |
e056b01d LP |
2759 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
2760 | ||
2761 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
2762 | } |
2763 | ||
10a94420 LP |
2764 | static const char *service_sub_state_to_string(Unit *u) { |
2765 | assert(u); | |
2766 | ||
2767 | return service_state_to_string(SERVICE(u)->state); | |
2768 | } | |
2769 | ||
701cc384 LP |
2770 | static bool service_check_gc(Unit *u) { |
2771 | Service *s = SERVICE(u); | |
2772 | ||
2773 | assert(s); | |
2774 | ||
6d55002a LP |
2775 | /* Never clean up services that still have a process around, |
2776 | * even if the service is formally dead. */ | |
2777 | if (cgroup_good(s) > 0 || | |
2778 | main_pid_good(s) > 0 || | |
2779 | control_pid_good(s) > 0) | |
2780 | return true; | |
2781 | ||
2782 | #ifdef HAVE_SYSV_COMPAT | |
1b64d026 | 2783 | if (s->is_sysv) |
6d55002a | 2784 | return true; |
07459bb6 | 2785 | #endif |
701cc384 | 2786 | |
6d55002a LP |
2787 | return false; |
2788 | } | |
2789 | ||
44a6b1b6 | 2790 | _pure_ static bool service_check_snapshot(Unit *u) { |
701cc384 LP |
2791 | Service *s = SERVICE(u); |
2792 | ||
2793 | assert(s); | |
2794 | ||
99f37ad8 | 2795 | return (s->socket_fd < 0); |
701cc384 LP |
2796 | } |
2797 | ||
3a111838 MS |
2798 | static int service_retry_pid_file(Service *s) { |
2799 | int r; | |
2800 | ||
2801 | assert(s->pid_file); | |
2802 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2803 | ||
2804 | r = service_load_pid_file(s, false); | |
2805 | if (r < 0) | |
2806 | return r; | |
2807 | ||
2808 | service_unwatch_pid_file(s); | |
2809 | ||
f42806df | 2810 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
2811 | return 0; |
2812 | } | |
2813 | ||
2814 | static int service_watch_pid_file(Service *s) { | |
2815 | int r; | |
2816 | ||
66870f90 ZJS |
2817 | log_debug_unit(UNIT(s)->id, |
2818 | "Setting watch for %s's PID file %s", | |
2819 | UNIT(s)->id, s->pid_file_pathspec->path); | |
718db961 | 2820 | r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); |
3a111838 MS |
2821 | if (r < 0) |
2822 | goto fail; | |
2823 | ||
2824 | /* the pidfile might have appeared just before we set the watch */ | |
bc41f93e ZJS |
2825 | log_debug_unit(UNIT(s)->id, |
2826 | "Trying to read %s's PID file %s in case it changed", | |
2827 | UNIT(s)->id, s->pid_file_pathspec->path); | |
3a111838 MS |
2828 | service_retry_pid_file(s); |
2829 | ||
2830 | return 0; | |
2831 | fail: | |
66870f90 ZJS |
2832 | log_error_unit(UNIT(s)->id, |
2833 | "Failed to set a watch for %s's PID file %s: %s", | |
2834 | UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r)); | |
3a111838 MS |
2835 | service_unwatch_pid_file(s); |
2836 | return r; | |
2837 | } | |
2838 | ||
2839 | static int service_demand_pid_file(Service *s) { | |
2840 | PathSpec *ps; | |
2841 | ||
2842 | assert(s->pid_file); | |
2843 | assert(!s->pid_file_pathspec); | |
2844 | ||
2845 | ps = new0(PathSpec, 1); | |
2846 | if (!ps) | |
2847 | return -ENOMEM; | |
2848 | ||
718db961 | 2849 | ps->unit = UNIT(s); |
3a111838 MS |
2850 | ps->path = strdup(s->pid_file); |
2851 | if (!ps->path) { | |
2852 | free(ps); | |
2853 | return -ENOMEM; | |
2854 | } | |
2855 | ||
2856 | path_kill_slashes(ps->path); | |
2857 | ||
2858 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2859 | * keep their PID file open all the time. */ | |
2860 | ps->type = PATH_MODIFIED; | |
2861 | ps->inotify_fd = -1; | |
2862 | ||
2863 | s->pid_file_pathspec = ps; | |
2864 | ||
2865 | return service_watch_pid_file(s); | |
2866 | } | |
2867 | ||
718db961 | 2868 | static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { |
e14c2802 LP |
2869 | PathSpec *p = userdata; |
2870 | Service *s; | |
2871 | ||
2872 | assert(p); | |
2873 | ||
2874 | s = SERVICE(p->unit); | |
3a111838 MS |
2875 | |
2876 | assert(s); | |
2877 | assert(fd >= 0); | |
2878 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2879 | assert(s->pid_file_pathspec); | |
57020a3a | 2880 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2881 | |
718db961 | 2882 | log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id); |
3a111838 | 2883 | |
e14c2802 | 2884 | if (path_spec_fd_event(p, events) < 0) |
3a111838 MS |
2885 | goto fail; |
2886 | ||
2887 | if (service_retry_pid_file(s) == 0) | |
718db961 | 2888 | return 0; |
3a111838 MS |
2889 | |
2890 | if (service_watch_pid_file(s) < 0) | |
2891 | goto fail; | |
2892 | ||
718db961 LP |
2893 | return 0; |
2894 | ||
3a111838 MS |
2895 | fail: |
2896 | service_unwatch_pid_file(s); | |
f42806df | 2897 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
718db961 | 2898 | return 0; |
3a111838 MS |
2899 | } |
2900 | ||
87f0e418 LP |
2901 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2902 | Service *s = SERVICE(u); | |
f42806df | 2903 | ServiceResult f; |
5cb5a6ff LP |
2904 | |
2905 | assert(s); | |
034c6ed7 LP |
2906 | assert(pid >= 0); |
2907 | ||
96342de6 LN |
2908 | if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) : |
2909 | is_clean_exit_lsb(code, status, &s->success_status)) | |
f42806df LP |
2910 | f = SERVICE_SUCCESS; |
2911 | else if (code == CLD_EXITED) | |
2912 | f = SERVICE_FAILURE_EXIT_CODE; | |
2913 | else if (code == CLD_KILLED) | |
2914 | f = SERVICE_FAILURE_SIGNAL; | |
2915 | else if (code == CLD_DUMPED) | |
2916 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2917 | else |
cfc4eb4c | 2918 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2919 | |
2920 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2921 | /* Forking services may occasionally move to a new PID. |
2922 | * As long as they update the PID file before exiting the old | |
2923 | * PID, they're fine. */ | |
5375410b | 2924 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2925 | return; |
034c6ed7 | 2926 | |
034c6ed7 | 2927 | s->main_pid = 0; |
6ea832a2 | 2928 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2929 | |
867b3b7d | 2930 | if (s->main_command) { |
fbeefb45 LP |
2931 | /* If this is not a forking service than the |
2932 | * main process got started and hence we copy | |
2933 | * the exit status so that it is recorded both | |
2934 | * as main and as control process exit | |
2935 | * status */ | |
2936 | ||
867b3b7d | 2937 | s->main_command->exec_status = s->main_exec_status; |
b708e7ce | 2938 | |
867b3b7d | 2939 | if (s->main_command->ignore) |
f42806df | 2940 | f = SERVICE_SUCCESS; |
fbeefb45 LP |
2941 | } else if (s->exec_command[SERVICE_EXEC_START]) { |
2942 | ||
2943 | /* If this is a forked process, then we should | |
2944 | * ignore the return value if this was | |
2945 | * configured for the starter process */ | |
2946 | ||
2947 | if (s->exec_command[SERVICE_EXEC_START]->ignore) | |
2948 | f = SERVICE_SUCCESS; | |
034c6ed7 LP |
2949 | } |
2950 | ||
bbc9006e MT |
2951 | log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, |
2952 | u->id, | |
23635a85 ZJS |
2953 | "MESSAGE=%s: main process exited, code=%s, status=%i/%s", |
2954 | u->id, sigchld_code_to_string(code), status, | |
2955 | strna(code == CLD_EXITED | |
2956 | ? exit_status_to_string(status, EXIT_STATUS_FULL) | |
2957 | : signal_to_string(status)), | |
23635a85 ZJS |
2958 | "EXIT_CODE=%s", sigchld_code_to_string(code), |
2959 | "EXIT_STATUS=%i", status, | |
2960 | NULL); | |
f42806df LP |
2961 | |
2962 | if (f != SERVICE_SUCCESS) | |
2963 | s->result = f; | |
034c6ed7 | 2964 | |
867b3b7d LP |
2965 | if (s->main_command && |
2966 | s->main_command->command_next && | |
f42806df | 2967 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2968 | |
34e9ba66 LP |
2969 | /* There is another command to * |
2970 | * execute, so let's do that. */ | |
034c6ed7 | 2971 | |
66870f90 ZJS |
2972 | log_debug_unit(u->id, |
2973 | "%s running next main command for state %s", | |
2974 | u->id, service_state_to_string(s->state)); | |
f42806df | 2975 | service_run_next_main(s); |
034c6ed7 | 2976 | |
34e9ba66 LP |
2977 | } else { |
2978 | ||
2979 | /* The service exited, so the service is officially | |
2980 | * gone. */ | |
867b3b7d | 2981 | s->main_command = NULL; |
34e9ba66 LP |
2982 | |
2983 | switch (s->state) { | |
2984 | ||
2985 | case SERVICE_START_POST: | |
2986 | case SERVICE_RELOAD: | |
2987 | case SERVICE_STOP: | |
2988 | /* Need to wait until the operation is | |
2989 | * done */ | |
c4653a4d | 2990 | break; |
7d55e835 | 2991 | |
34e9ba66 LP |
2992 | case SERVICE_START: |
2993 | if (s->type == SERVICE_ONESHOT) { | |
2994 | /* This was our main goal, so let's go on */ | |
f42806df | 2995 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2996 | service_enter_start_post(s); |
2997 | else | |
f42806df | 2998 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
34e9ba66 | 2999 | break; |
34e9ba66 | 3000 | } |
034c6ed7 | 3001 | |
bfba3256 LP |
3002 | /* Fall through */ |
3003 | ||
34e9ba66 | 3004 | case SERVICE_RUNNING: |
f42806df | 3005 | service_enter_running(s, f); |
34e9ba66 | 3006 | break; |
034c6ed7 | 3007 | |
34e9ba66 LP |
3008 | case SERVICE_STOP_SIGTERM: |
3009 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 3010 | |
34e9ba66 | 3011 | if (!control_pid_good(s)) |
f42806df | 3012 | service_enter_stop_post(s, f); |
5cb5a6ff | 3013 | |
34e9ba66 LP |
3014 | /* If there is still a control process, wait for that first */ |
3015 | break; | |
3016 | ||
3017 | default: | |
3018 | assert_not_reached("Uh, main process died at wrong time."); | |
3019 | } | |
034c6ed7 | 3020 | } |
5cb5a6ff | 3021 | |
034c6ed7 | 3022 | } else if (s->control_pid == pid) { |
34e9ba66 LP |
3023 | s->control_pid = 0; |
3024 | ||
b708e7ce | 3025 | if (s->control_command) { |
117dcc57 ZJS |
3026 | exec_status_exit(&s->control_command->exec_status, |
3027 | &s->exec_context, pid, code, status); | |
a16e1123 | 3028 | |
b708e7ce | 3029 | if (s->control_command->ignore) |
f42806df | 3030 | f = SERVICE_SUCCESS; |
b708e7ce LP |
3031 | } |
3032 | ||
66870f90 ZJS |
3033 | log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id, |
3034 | "%s: control process exited, code=%s status=%i", | |
3035 | u->id, sigchld_code_to_string(code), status); | |
f42806df LP |
3036 | |
3037 | if (f != SERVICE_SUCCESS) | |
3038 | s->result = f; | |
034c6ed7 | 3039 | |
88f3e0c9 LP |
3040 | /* Immediately get rid of the cgroup, so that the |
3041 | * kernel doesn't delay the cgroup empty messages for | |
3042 | * the service cgroup any longer than necessary */ | |
4ad49000 | 3043 | service_kill_control_processes(s); |
88f3e0c9 | 3044 | |
34e9ba66 LP |
3045 | if (s->control_command && |
3046 | s->control_command->command_next && | |
f42806df | 3047 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3048 | |
3049 | /* There is another command to * | |
3050 | * execute, so let's do that. */ | |
3051 | ||
66870f90 ZJS |
3052 | log_debug_unit(u->id, |
3053 | "%s running next control command for state %s", | |
3054 | u->id, service_state_to_string(s->state)); | |
f42806df | 3055 | service_run_next_control(s); |
034c6ed7 | 3056 | |
80876c20 | 3057 | } else { |
034c6ed7 LP |
3058 | /* No further commands for this step, so let's |
3059 | * figure out what to do next */ | |
3060 | ||
a16e1123 LP |
3061 | s->control_command = NULL; |
3062 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3063 | ||
66870f90 ZJS |
3064 | log_debug_unit(u->id, |
3065 | "%s got final SIGCHLD for state %s", | |
3066 | u->id, service_state_to_string(s->state)); | |
bd982a8b | 3067 | |
034c6ed7 LP |
3068 | switch (s->state) { |
3069 | ||
3070 | case SERVICE_START_PRE: | |
f42806df | 3071 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3072 | service_enter_start(s); |
3073 | else | |
f42806df | 3074 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
034c6ed7 LP |
3075 | break; |
3076 | ||
3077 | case SERVICE_START: | |
bfba3256 LP |
3078 | if (s->type != SERVICE_FORKING) |
3079 | /* Maybe spurious event due to a reload that changed the type? */ | |
3080 | break; | |
034c6ed7 | 3081 | |
f42806df LP |
3082 | if (f != SERVICE_SUCCESS) { |
3083 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3a111838 MS |
3084 | break; |
3085 | } | |
034c6ed7 | 3086 | |
3a111838 | 3087 | if (s->pid_file) { |
f42806df LP |
3088 | bool has_start_post; |
3089 | int r; | |
3090 | ||
3a111838 MS |
3091 | /* Let's try to load the pid file here if we can. |
3092 | * The PID file might actually be created by a START_POST | |
3093 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
3094 | |
3095 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
3096 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
3097 | if (!has_start_post && r < 0) { |
3098 | r = service_demand_pid_file(s); | |
3099 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 3100 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
3101 | break; |
3102 | } | |
034c6ed7 | 3103 | } else |
3a111838 | 3104 | service_search_main_pid(s); |
034c6ed7 | 3105 | |
3a111838 | 3106 | service_enter_start_post(s); |
034c6ed7 LP |
3107 | break; |
3108 | ||
3109 | case SERVICE_START_POST: | |
f42806df LP |
3110 | if (f != SERVICE_SUCCESS) { |
3111 | service_enter_stop(s, f); | |
2096e009 | 3112 | break; |
034c6ed7 LP |
3113 | } |
3114 | ||
2096e009 | 3115 | if (s->pid_file) { |
f42806df LP |
3116 | int r; |
3117 | ||
3118 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3119 | if (r < 0) { |
3120 | r = service_demand_pid_file(s); | |
3121 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 3122 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
2096e009 MS |
3123 | break; |
3124 | } | |
3125 | } else | |
3126 | service_search_main_pid(s); | |
3127 | ||
f42806df | 3128 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3129 | break; |
034c6ed7 LP |
3130 | |
3131 | case SERVICE_RELOAD: | |
f42806df | 3132 | if (f == SERVICE_SUCCESS) { |
5375410b | 3133 | service_load_pid_file(s, true); |
3185a36b LP |
3134 | service_search_main_pid(s); |
3135 | } | |
3136 | ||
f42806df LP |
3137 | s->reload_result = f; |
3138 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3139 | break; |
3140 | ||
3141 | case SERVICE_STOP: | |
f42806df | 3142 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3143 | break; |
3144 | ||
3145 | case SERVICE_STOP_SIGTERM: | |
3146 | case SERVICE_STOP_SIGKILL: | |
3147 | if (main_pid_good(s) <= 0) | |
f42806df | 3148 | service_enter_stop_post(s, f); |
034c6ed7 LP |
3149 | |
3150 | /* If there is still a service | |
3151 | * process around, wait until | |
3152 | * that one quit, too */ | |
3153 | break; | |
3154 | ||
3155 | case SERVICE_STOP_POST: | |
3156 | case SERVICE_FINAL_SIGTERM: | |
3157 | case SERVICE_FINAL_SIGKILL: | |
f42806df | 3158 | service_enter_dead(s, f, true); |
034c6ed7 LP |
3159 | break; |
3160 | ||
3161 | default: | |
3162 | assert_not_reached("Uh, control process died at wrong time."); | |
3163 | } | |
3164 | } | |
8c47c732 | 3165 | } |
c4e2ceae LP |
3166 | |
3167 | /* Notify clients about changed exit status */ | |
3168 | unit_add_to_dbus_queue(u); | |
034c6ed7 LP |
3169 | } |
3170 | ||
718db961 LP |
3171 | static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
3172 | Service *s = SERVICE(userdata); | |
034c6ed7 LP |
3173 | |
3174 | assert(s); | |
718db961 | 3175 | assert(source == s->timer_event_source); |
034c6ed7 LP |
3176 | |
3177 | switch (s->state) { | |
3178 | ||
3179 | case SERVICE_START_PRE: | |
3180 | case SERVICE_START: | |
718db961 LP |
3181 | log_warning_unit(UNIT(s)->id, |
3182 | "%s operation timed out. Terminating.", UNIT(s)->id); | |
f42806df | 3183 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
3184 | break; |
3185 | ||
034c6ed7 | 3186 | case SERVICE_START_POST: |
718db961 LP |
3187 | log_warning_unit(UNIT(s)->id, |
3188 | "%s operation timed out. Stopping.", UNIT(s)->id); | |
f42806df | 3189 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3190 | break; |
3191 | ||
e2f3b44c | 3192 | case SERVICE_RELOAD: |
718db961 LP |
3193 | log_warning_unit(UNIT(s)->id, |
3194 | "%s operation timed out. Stopping.", UNIT(s)->id); | |
f42806df LP |
3195 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3196 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3197 | break; |
3198 | ||
034c6ed7 | 3199 | case SERVICE_STOP: |
718db961 LP |
3200 | log_warning_unit(UNIT(s)->id, |
3201 | "%s stopping timed out. Terminating.", UNIT(s)->id); | |
f42806df | 3202 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3203 | break; |
3204 | ||
3205 | case SERVICE_STOP_SIGTERM: | |
4819ff03 | 3206 | if (s->kill_context.send_sigkill) { |
718db961 LP |
3207 | log_warning_unit(UNIT(s)->id, |
3208 | "%s stopping timed out. Killing.", UNIT(s)->id); | |
f42806df | 3209 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3210 | } else { |
718db961 LP |
3211 | log_warning_unit(UNIT(s)->id, |
3212 | "%s stopping timed out. Skipping SIGKILL.", UNIT(s)->id); | |
f42806df | 3213 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3214 | } |
3215 | ||
034c6ed7 LP |
3216 | break; |
3217 | ||
3218 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3219 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3220 | * Must be something we cannot kill, so let's just be |
3221 | * weirded out and continue */ | |
3222 | ||
718db961 LP |
3223 | log_warning_unit(UNIT(s)->id, |
3224 | "%s still around after SIGKILL. Ignoring.", UNIT(s)->id); | |
f42806df | 3225 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3226 | break; |
3227 | ||
3228 | case SERVICE_STOP_POST: | |
718db961 LP |
3229 | log_warning_unit(UNIT(s)->id, |
3230 | "%s stopping timed out (2). Terminating.", UNIT(s)->id); | |
f42806df | 3231 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3232 | break; |
3233 | ||
3234 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 3235 | if (s->kill_context.send_sigkill) { |
718db961 LP |
3236 | log_warning_unit(UNIT(s)->id, |
3237 | "%s stopping timed out (2). Killing.", UNIT(s)->id); | |
f42806df | 3238 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3239 | } else { |
718db961 | 3240 | log_warning_unit(UNIT(s)->id, |
66870f90 | 3241 | "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", |
718db961 | 3242 | UNIT(s)->id); |
f42806df | 3243 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3244 | } |
3245 | ||
034c6ed7 LP |
3246 | break; |
3247 | ||
3248 | case SERVICE_FINAL_SIGKILL: | |
718db961 LP |
3249 | log_warning_unit(UNIT(s)->id, |
3250 | "%s still around after SIGKILL (2). Entering failed mode.", UNIT(s)->id); | |
f42806df | 3251 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3252 | break; |
3253 | ||
3254 | case SERVICE_AUTO_RESTART: | |
718db961 LP |
3255 | log_info_unit(UNIT(s)->id, |
3256 | "%s holdoff time over, scheduling restart.", UNIT(s)->id); | |
034c6ed7 LP |
3257 | service_enter_restart(s); |
3258 | break; | |
3259 | ||
3260 | default: | |
3261 | assert_not_reached("Timeout at wrong time."); | |
3262 | } | |
718db961 LP |
3263 | |
3264 | return 0; | |
3265 | } | |
3266 | ||
3267 | static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { | |
3268 | Service *s = SERVICE(userdata); | |
3269 | ||
3270 | assert(s); | |
3271 | assert(source == s->watchdog_event_source); | |
3272 | ||
842129f5 LP |
3273 | log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id); |
3274 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_WATCHDOG); | |
3275 | ||
718db961 | 3276 | return 0; |
5cb5a6ff LP |
3277 | } |
3278 | ||
4ad49000 | 3279 | static void service_notify_cgroup_empty_event(Unit *u) { |
8e274523 LP |
3280 | Service *s = SERVICE(u); |
3281 | ||
3282 | assert(u); | |
3283 | ||
6c12b52e | 3284 | log_debug_unit(u->id, "%s: cgroup is empty", u->id); |
8e274523 LP |
3285 | |
3286 | switch (s->state) { | |
3287 | ||
3288 | /* Waiting for SIGCHLD is usually more interesting, | |
3289 | * because it includes return codes/signals. Which is | |
3290 | * why we ignore the cgroup events for most cases, | |
3291 | * except when we don't know pid which to expect the | |
3292 | * SIGCHLD for. */ | |
3293 | ||
3a111838 MS |
3294 | case SERVICE_START: |
3295 | case SERVICE_START_POST: | |
3296 | /* If we were hoping for the daemon to write its PID file, | |
3297 | * we can give up now. */ | |
3298 | if (s->pid_file_pathspec) { | |
66870f90 ZJS |
3299 | log_warning_unit(u->id, |
3300 | "%s never wrote its PID file. Failing.", UNIT(s)->id); | |
3a111838 MS |
3301 | service_unwatch_pid_file(s); |
3302 | if (s->state == SERVICE_START) | |
f42806df | 3303 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 | 3304 | else |
f42806df | 3305 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
3306 | } |
3307 | break; | |
3308 | ||
8e274523 | 3309 | case SERVICE_RUNNING: |
f42806df LP |
3310 | /* service_enter_running() will figure out what to do */ |
3311 | service_enter_running(s, SERVICE_SUCCESS); | |
8e274523 LP |
3312 | break; |
3313 | ||
28708d8a LP |
3314 | case SERVICE_STOP_SIGTERM: |
3315 | case SERVICE_STOP_SIGKILL: | |
6dfa5494 | 3316 | |
28708d8a | 3317 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) |
f42806df | 3318 | service_enter_stop_post(s, SERVICE_SUCCESS); |
28708d8a LP |
3319 | |
3320 | break; | |
3321 | ||
7f97f0fe LP |
3322 | case SERVICE_FINAL_SIGTERM: |
3323 | case SERVICE_FINAL_SIGKILL: | |
3324 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
e201a038 | 3325 | service_enter_dead(s, SERVICE_SUCCESS, true); |
7f97f0fe LP |
3326 | |
3327 | break; | |
3328 | ||
8e274523 LP |
3329 | default: |
3330 | ; | |
3331 | } | |
3332 | } | |
3333 | ||
c952c6ec | 3334 | static void service_notify_message(Unit *u, pid_t pid, char **tags) { |
8c47c732 LP |
3335 | Service *s = SERVICE(u); |
3336 | const char *e; | |
3337 | ||
3338 | assert(u); | |
3339 | ||
c952c6ec | 3340 | if (s->notify_access == NOTIFY_NONE) { |
66870f90 ZJS |
3341 | log_warning_unit(u->id, |
3342 | "%s: Got notification message from PID %lu, but reception is disabled.", | |
3343 | u->id, (unsigned long) pid); | |
c952c6ec LP |
3344 | return; |
3345 | } | |
3346 | ||
3347 | if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { | |
66870f90 ZJS |
3348 | log_warning_unit(u->id, |
3349 | "%s: Got notification message from PID %lu, but reception only permitted for PID %lu", | |
3350 | u->id, (unsigned long) pid, (unsigned long) s->main_pid); | |
c952c6ec LP |
3351 | return; |
3352 | } | |
3353 | ||
66870f90 ZJS |
3354 | log_debug_unit(u->id, |
3355 | "%s: Got message", u->id); | |
8c47c732 LP |
3356 | |
3357 | /* Interpret MAINPID= */ | |
3358 | if ((e = strv_find_prefix(tags, "MAINPID=")) && | |
3359 | (s->state == SERVICE_START || | |
3360 | s->state == SERVICE_START_POST || | |
3361 | s->state == SERVICE_RUNNING || | |
3362 | s->state == SERVICE_RELOAD)) { | |
8c47c732 | 3363 | |
5925dd3c | 3364 | if (parse_pid(e + 8, &pid) < 0) |
66870f90 ZJS |
3365 | log_warning_unit(u->id, |
3366 | "Failed to parse notification message %s", e); | |
8c47c732 | 3367 | else { |
66870f90 ZJS |
3368 | log_debug_unit(u->id, |
3369 | "%s: got %s", u->id, e); | |
5925dd3c | 3370 | service_set_main_pid(s, pid); |
7400b9d2 | 3371 | unit_watch_pid(UNIT(s), pid); |
8c47c732 LP |
3372 | } |
3373 | } | |
3374 | ||
3375 | /* Interpret READY= */ | |
3376 | if (s->type == SERVICE_NOTIFY && | |
3377 | s->state == SERVICE_START && | |
3378 | strv_find(tags, "READY=1")) { | |
66870f90 ZJS |
3379 | log_debug_unit(u->id, |
3380 | "%s: got READY=1", u->id); | |
8c47c732 LP |
3381 | |
3382 | service_enter_start_post(s); | |
3383 | } | |
3384 | ||
3385 | /* Interpret STATUS= */ | |
7f110ff9 LP |
3386 | e = strv_find_prefix(tags, "STATUS="); |
3387 | if (e) { | |
8c47c732 LP |
3388 | char *t; |
3389 | ||
3a2776bc | 3390 | if (e[7]) { |
7f110ff9 LP |
3391 | |
3392 | if (!utf8_is_valid(e+7)) { | |
66870f90 ZJS |
3393 | log_warning_unit(u->id, |
3394 | "Status message in notification is not UTF-8 clean."); | |
7f110ff9 LP |
3395 | return; |
3396 | } | |
3397 | ||
3398 | t = strdup(e+7); | |
3399 | if (!t) { | |
66870f90 ZJS |
3400 | log_error_unit(u->id, |
3401 | "Failed to allocate string."); | |
3a2776bc LP |
3402 | return; |
3403 | } | |
3404 | ||
66870f90 ZJS |
3405 | log_debug_unit(u->id, |
3406 | "%s: got %s", u->id, e); | |
8c47c732 | 3407 | |
3a2776bc LP |
3408 | free(s->status_text); |
3409 | s->status_text = t; | |
3410 | } else { | |
3411 | free(s->status_text); | |
3412 | s->status_text = NULL; | |
3413 | } | |
8c47c732 | 3414 | |
8c47c732 | 3415 | } |
842129f5 | 3416 | |
a6927d7f | 3417 | if (strv_find(tags, "WATCHDOG=1")) { |
842129f5 LP |
3418 | log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id); |
3419 | service_reset_watchdog(s); | |
a6927d7f | 3420 | } |
c4e2ceae LP |
3421 | |
3422 | /* Notify clients about changed status or main pid */ | |
3423 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
3424 | } |
3425 | ||
07459bb6 | 3426 | #ifdef HAVE_SYSV_COMPAT |
de3910a3 | 3427 | |
2c4104f0 | 3428 | static int service_enumerate(Manager *m) { |
2c4104f0 LP |
3429 | char **p; |
3430 | unsigned i; | |
7fd1b19b HH |
3431 | _cleanup_closedir_ DIR *d = NULL; |
3432 | _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL; | |
b92bea5d | 3433 | Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {}; |
7fd1b19b | 3434 | _cleanup_set_free_ Set *shutdown_services = NULL; |
c68364b7 LP |
3435 | Unit *service; |
3436 | Iterator j; | |
2c4104f0 LP |
3437 | int r; |
3438 | ||
3439 | assert(m); | |
3440 | ||
67445f4e | 3441 | if (m->running_as != SYSTEMD_SYSTEM) |
b1bc08e5 LP |
3442 | return 0; |
3443 | ||
84e3543e | 3444 | STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path) |
09cd1ab1 | 3445 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) { |
2c4104f0 LP |
3446 | struct dirent *de; |
3447 | ||
3448 | free(path); | |
b7def684 | 3449 | path = strjoin(*p, "/", rcnd_table[i].path, NULL); |
70132bd0 | 3450 | if (!path) { |
2c4104f0 LP |
3451 | r = -ENOMEM; |
3452 | goto finish; | |
3453 | } | |
3454 | ||
3455 | if (d) | |
3456 | closedir(d); | |
3457 | ||
117dcc57 ZJS |
3458 | d = opendir(path); |
3459 | if (!d) { | |
2c4104f0 | 3460 | if (errno != ENOENT) |
f5f6d0e2 | 3461 | log_warning("opendir(%s) failed: %m", path); |
2c4104f0 LP |
3462 | |
3463 | continue; | |
3464 | } | |
3465 | ||
3466 | while ((de = readdir(d))) { | |
db06e3b6 | 3467 | int a, b; |
2c4104f0 LP |
3468 | |
3469 | if (ignore_file(de->d_name)) | |
3470 | continue; | |
3471 | ||
3472 | if (de->d_name[0] != 'S' && de->d_name[0] != 'K') | |
3473 | continue; | |
3474 | ||
3475 | if (strlen(de->d_name) < 4) | |
3476 | continue; | |
3477 | ||
db06e3b6 LP |
3478 | a = undecchar(de->d_name[1]); |
3479 | b = undecchar(de->d_name[2]); | |
3480 | ||
3481 | if (a < 0 || b < 0) | |
3482 | continue; | |
3483 | ||
2c4104f0 | 3484 | free(fpath); |
b7def684 | 3485 | fpath = strjoin(path, "/", de->d_name, NULL); |
8ea913b2 | 3486 | if (!fpath) { |
2c4104f0 LP |
3487 | r = -ENOMEM; |
3488 | goto finish; | |
3489 | } | |
3490 | ||
3491 | if (access(fpath, X_OK) < 0) { | |
3492 | ||
3493 | if (errno != ENOENT) | |
f5f6d0e2 | 3494 | log_warning("access() failed on %s: %m", fpath); |
2c4104f0 LP |
3495 | |
3496 | continue; | |
3497 | } | |
3498 | ||
3499 | free(name); | |
117dcc57 ZJS |
3500 | name = sysv_translate_name(de->d_name + 3); |
3501 | if (!name) { | |
3502 | r = log_oom(); | |
2c4104f0 LP |
3503 | goto finish; |
3504 | } | |
3505 | ||
66870f90 ZJS |
3506 | r = manager_load_unit_prepare(m, name, NULL, NULL, &service); |
3507 | if (r < 0) { | |
fbe9f3a9 LP |
3508 | log_warning("Failed to prepare unit %s: %s", name, strerror(-r)); |
3509 | continue; | |
3510 | } | |
2c4104f0 | 3511 | |
c68364b7 LP |
3512 | if (de->d_name[0] == 'S') { |
3513 | ||
3cdebc21 | 3514 | if (rcnd_table[i].type == RUNLEVEL_UP) { |
ea87ca5a LP |
3515 | SERVICE(service)->sysv_start_priority_from_rcnd = |
3516 | MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd); | |
db06e3b6 | 3517 | |
c68364b7 | 3518 | SERVICE(service)->sysv_enabled = true; |
f73d93a4 | 3519 | } |
db06e3b6 | 3520 | |
117dcc57 ZJS |
3521 | r = set_ensure_allocated(&runlevel_services[i], |
3522 | trivial_hash_func, trivial_compare_func); | |
3523 | if (r < 0) | |
c68364b7 | 3524 | goto finish; |
2c4104f0 | 3525 | |
117dcc57 ZJS |
3526 | r = set_put(runlevel_services[i], service); |
3527 | if (r < 0) | |
2c4104f0 | 3528 | goto finish; |
23a177ef | 3529 | |
fc5df99e | 3530 | } else if (de->d_name[0] == 'K' && |
3cdebc21 | 3531 | (rcnd_table[i].type == RUNLEVEL_DOWN)) { |
6542952f | 3532 | |
117dcc57 ZJS |
3533 | r = set_ensure_allocated(&shutdown_services, |
3534 | trivial_hash_func, trivial_compare_func); | |
3535 | if (r < 0) | |
c68364b7 LP |
3536 | goto finish; |
3537 | ||
117dcc57 ZJS |
3538 | r = set_put(shutdown_services, service); |
3539 | if (r < 0) | |
2c4104f0 LP |
3540 | goto finish; |
3541 | } | |
3542 | } | |
3543 | } | |
3544 | ||
c68364b7 LP |
3545 | /* Now we loaded all stubs and are aware of the lowest |
3546 | start-up priority for all services, not let's actually load | |
3547 | the services, this will also tell us which services are | |
3548 | actually native now */ | |
3549 | manager_dispatch_load_queue(m); | |
3550 | ||
3551 | /* If this is a native service, rely on native ways to pull in | |
3552 | * a service, don't pull it in via sysv rcN.d links. */ | |
3553 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) | |
3554 | SET_FOREACH(service, runlevel_services[i], j) { | |
3555 | service = unit_follow_merge(service); | |
3556 | ||
ac155bb8 | 3557 | if (service->fragment_path) |
c68364b7 LP |
3558 | continue; |
3559 | ||
117dcc57 ZJS |
3560 | r = unit_add_two_dependencies_by_name_inverse( |
3561 | service, UNIT_AFTER, UNIT_WANTS, | |
3562 | rcnd_table[i].target, NULL, true); | |
3563 | if (r < 0) | |
c68364b7 LP |
3564 | goto finish; |
3565 | } | |
3566 | ||
3567 | /* We honour K links only for halt/reboot. For the normal | |
3568 | * runlevels we assume the stop jobs will be implicitly added | |
35b8ca3a | 3569 | * by the core logic. Also, we don't really distinguish here |
c68364b7 | 3570 | * between the runlevels 0 and 6 and just add them to the |
3cdebc21 | 3571 | * special shutdown target. */ |
c68364b7 LP |
3572 | SET_FOREACH(service, shutdown_services, j) { |
3573 | service = unit_follow_merge(service); | |
3574 | ||
ac155bb8 | 3575 | if (service->fragment_path) |
c68364b7 LP |
3576 | continue; |
3577 | ||
117dcc57 ZJS |
3578 | r = unit_add_two_dependencies_by_name( |
3579 | service, UNIT_BEFORE, UNIT_CONFLICTS, | |
3580 | SPECIAL_SHUTDOWN_TARGET, NULL, true); | |
3581 | if (r < 0) | |
c68364b7 LP |
3582 | goto finish; |
3583 | } | |
3584 | ||
2c4104f0 LP |
3585 | r = 0; |
3586 | ||
3587 | finish: | |
fbe9f3a9 | 3588 | |
c68364b7 LP |
3589 | for (i = 0; i < ELEMENTSOF(rcnd_table); i++) |
3590 | set_free(runlevel_services[i]); | |
2c4104f0 LP |
3591 | |
3592 | return r; | |
3593 | } | |
07459bb6 | 3594 | #endif |
2c4104f0 | 3595 | |
05e343b7 LP |
3596 | static void service_bus_name_owner_change( |
3597 | Unit *u, | |
3598 | const char *name, | |
3599 | const char *old_owner, | |
3600 | const char *new_owner) { | |
3601 | ||
3602 | Service *s = SERVICE(u); | |
718db961 | 3603 | int r; |
05e343b7 LP |
3604 | |
3605 | assert(s); | |
3606 | assert(name); | |
3607 | ||
3608 | assert(streq(s->bus_name, name)); | |
3609 | assert(old_owner || new_owner); | |
3610 | ||
3611 | if (old_owner && new_owner) | |
66870f90 ZJS |
3612 | log_debug_unit(u->id, |
3613 | "%s's D-Bus name %s changed owner from %s to %s", | |
3614 | u->id, name, old_owner, new_owner); | |
05e343b7 | 3615 | else if (old_owner) |
66870f90 ZJS |
3616 | log_debug_unit(u->id, |
3617 | "%s's D-Bus name %s no longer registered by %s", | |
3618 | u->id, name, old_owner); | |
05e343b7 | 3619 | else |
66870f90 ZJS |
3620 | log_debug_unit(u->id, |
3621 | "%s's D-Bus name %s now registered by %s", | |
3622 | u->id, name, new_owner); | |
05e343b7 LP |
3623 | |
3624 | s->bus_name_good = !!new_owner; | |
3625 | ||
3626 | if (s->type == SERVICE_DBUS) { | |
3627 | ||
3628 | /* service_enter_running() will figure out what to | |
3629 | * do */ | |
3630 | if (s->state == SERVICE_RUNNING) | |
f42806df | 3631 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
3632 | else if (s->state == SERVICE_START && new_owner) |
3633 | service_enter_start_post(s); | |
3634 | ||
3635 | } else if (new_owner && | |
3636 | s->main_pid <= 0 && | |
3637 | (s->state == SERVICE_START || | |
3638 | s->state == SERVICE_START_POST || | |
3639 | s->state == SERVICE_RUNNING || | |
3640 | s->state == SERVICE_RELOAD)) { | |
3641 | ||
5b12334d | 3642 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
718db961 | 3643 | pid_t pid; |
05e343b7 | 3644 | |
718db961 | 3645 | /* Try to acquire PID from bus service */ |
05e343b7 | 3646 | |
49b832c5 | 3647 | r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); |
5b12334d LP |
3648 | if (r >= 0) |
3649 | r = sd_bus_creds_get_pid(creds, &pid); | |
718db961 LP |
3650 | if (r >= 0) { |
3651 | log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid); | |
05e343b7 | 3652 | |
718db961 LP |
3653 | service_set_main_pid(s, pid); |
3654 | unit_watch_pid(UNIT(s), pid); | |
3655 | } | |
7400b9d2 | 3656 | } |
05e343b7 LP |
3657 | } |
3658 | ||
6cf6bbc2 | 3659 | int service_set_socket_fd(Service *s, int fd, Socket *sock) { |
57020a3a | 3660 | |
4f2d528d LP |
3661 | assert(s); |
3662 | assert(fd >= 0); | |
3663 | ||
3664 | /* This is called by the socket code when instantiating a new | |
3665 | * service for a stream socket and the socket needs to be | |
3666 | * configured. */ | |
3667 | ||
1124fe6f | 3668 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
3669 | return -EINVAL; |
3670 | ||
3671 | if (s->socket_fd >= 0) | |
3672 | return -EBUSY; | |
3673 | ||
3674 | if (s->state != SERVICE_DEAD) | |
3675 | return -EAGAIN; | |
3676 | ||
3677 | s->socket_fd = fd; | |
6cf6bbc2 | 3678 | |
57020a3a LP |
3679 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
3680 | ||
3681 | return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); | |
4f2d528d LP |
3682 | } |
3683 | ||
fdf20a31 | 3684 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
3685 | Service *s = SERVICE(u); |
3686 | ||
3687 | assert(s); | |
3688 | ||
fdf20a31 | 3689 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
3690 | service_set_state(s, SERVICE_DEAD); |
3691 | ||
f42806df LP |
3692 | s->result = SERVICE_SUCCESS; |
3693 | s->reload_result = SERVICE_SUCCESS; | |
451b34cc LP |
3694 | |
3695 | RATELIMIT_RESET(s->start_limit); | |
5632e374 LP |
3696 | } |
3697 | ||
718db961 | 3698 | static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
8a0867d6 | 3699 | Service *s = SERVICE(u); |
41efeaec | 3700 | |
814cc562 | 3701 | return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); |
8a0867d6 LP |
3702 | } |
3703 | ||
94f04347 LP |
3704 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { |
3705 | [SERVICE_DEAD] = "dead", | |
3706 | [SERVICE_START_PRE] = "start-pre", | |
3707 | [SERVICE_START] = "start", | |
3708 | [SERVICE_START_POST] = "start-post", | |
3709 | [SERVICE_RUNNING] = "running", | |
80876c20 | 3710 | [SERVICE_EXITED] = "exited", |
94f04347 LP |
3711 | [SERVICE_RELOAD] = "reload", |
3712 | [SERVICE_STOP] = "stop", | |
3713 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
3714 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
3715 | [SERVICE_STOP_POST] = "stop-post", | |
3716 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
3717 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
fdf20a31 | 3718 | [SERVICE_FAILED] = "failed", |
94f04347 LP |
3719 | [SERVICE_AUTO_RESTART] = "auto-restart", |
3720 | }; | |
3721 | ||
3722 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
3723 | ||
3724 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { | |
525ee6f4 LP |
3725 | [SERVICE_RESTART_NO] = "no", |
3726 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb | 3727 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
dc99a976 | 3728 | [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", |
50caaedb LP |
3729 | [SERVICE_RESTART_ON_ABORT] = "on-abort", |
3730 | [SERVICE_RESTART_ALWAYS] = "always" | |
94f04347 LP |
3731 | }; |
3732 | ||
3733 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
3734 | ||
3735 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 3736 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 3737 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 3738 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 3739 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
3740 | [SERVICE_NOTIFY] = "notify", |
3741 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
3742 | }; |
3743 | ||
3744 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
3745 | ||
e537352b | 3746 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
3747 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
3748 | [SERVICE_EXEC_START] = "ExecStart", | |
3749 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
3750 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
3751 | [SERVICE_EXEC_STOP] = "ExecStop", | |
3752 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
3753 | }; | |
3754 | ||
3755 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
3756 | ||
c952c6ec LP |
3757 | static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = { |
3758 | [NOTIFY_NONE] = "none", | |
3759 | [NOTIFY_MAIN] = "main", | |
3760 | [NOTIFY_ALL] = "all" | |
3761 | }; | |
3762 | ||
3763 | DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess); | |
3764 | ||
f42806df LP |
3765 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
3766 | [SERVICE_SUCCESS] = "success", | |
3767 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
3768 | [SERVICE_FAILURE_TIMEOUT] = "timeout", | |
3769 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
3770 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 3771 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a LP |
3772 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
3773 | [SERVICE_FAILURE_START_LIMIT] = "start-limit" | |
f42806df LP |
3774 | }; |
3775 | ||
3776 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
3777 | ||
4b939747 MO |
3778 | static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = { |
3779 | [SERVICE_START_LIMIT_NONE] = "none", | |
3780 | [SERVICE_START_LIMIT_REBOOT] = "reboot", | |
3781 | [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force", | |
3782 | [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate" | |
3783 | }; | |
3784 | DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction); | |
3785 | ||
87f0e418 | 3786 | const UnitVTable service_vtable = { |
7d17cfbc | 3787 | .object_size = sizeof(Service), |
718db961 LP |
3788 | .exec_context_offset = offsetof(Service, exec_context), |
3789 | .cgroup_context_offset = offsetof(Service, cgroup_context), | |
3790 | .kill_context_offset = offsetof(Service, kill_context), | |
613b411c | 3791 | .exec_runtime_offset = offsetof(Service, exec_runtime), |
3ef63c31 | 3792 | |
f975e971 LP |
3793 | .sections = |
3794 | "Unit\0" | |
3795 | "Service\0" | |
3796 | "Install\0", | |
4ad49000 | 3797 | .private_section = "Service", |
71645aca | 3798 | |
034c6ed7 LP |
3799 | .init = service_init, |
3800 | .done = service_done, | |
a16e1123 LP |
3801 | .load = service_load, |
3802 | ||
3803 | .coldplug = service_coldplug, | |
034c6ed7 | 3804 | |
5cb5a6ff LP |
3805 | .dump = service_dump, |
3806 | ||
3807 | .start = service_start, | |
3808 | .stop = service_stop, | |
3809 | .reload = service_reload, | |
3810 | ||
034c6ed7 LP |
3811 | .can_reload = service_can_reload, |
3812 | ||
8a0867d6 LP |
3813 | .kill = service_kill, |
3814 | ||
a16e1123 LP |
3815 | .serialize = service_serialize, |
3816 | .deserialize_item = service_deserialize_item, | |
3817 | ||
5cb5a6ff | 3818 | .active_state = service_active_state, |
10a94420 | 3819 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 3820 | |
701cc384 LP |
3821 | .check_gc = service_check_gc, |
3822 | .check_snapshot = service_check_snapshot, | |
3823 | ||
034c6ed7 | 3824 | .sigchld_event = service_sigchld_event, |
2c4104f0 | 3825 | |
fdf20a31 | 3826 | .reset_failed = service_reset_failed, |
5632e374 | 3827 | |
4ad49000 | 3828 | .notify_cgroup_empty = service_notify_cgroup_empty_event, |
8c47c732 | 3829 | .notify_message = service_notify_message, |
8e274523 | 3830 | |
05e343b7 | 3831 | .bus_name_owner_change = service_bus_name_owner_change, |
05e343b7 | 3832 | |
c4e2ceae | 3833 | .bus_interface = "org.freedesktop.systemd1.Service", |
718db961 LP |
3834 | .bus_vtable = bus_service_vtable, |
3835 | .bus_changing_properties = bus_service_changing_properties, | |
74c964d3 LP |
3836 | .bus_set_property = bus_service_set_property, |
3837 | .bus_commit_properties = bus_service_commit_properties, | |
4139c1b2 | 3838 | |
07459bb6 | 3839 | #ifdef HAVE_SYSV_COMPAT |
c6918296 | 3840 | .enumerate = service_enumerate, |
07459bb6 | 3841 | #endif |
718db961 LP |
3842 | |
3843 | .can_transient = true, | |
3844 | ||
c6918296 MS |
3845 | .status_message_formats = { |
3846 | .starting_stopping = { | |
3847 | [0] = "Starting %s...", | |
3848 | [1] = "Stopping %s...", | |
3849 | }, | |
3850 | .finished_start_job = { | |
3851 | [JOB_DONE] = "Started %s.", | |
3852 | [JOB_FAILED] = "Failed to start %s.", | |
3853 | [JOB_DEPENDENCY] = "Dependency failed for %s.", | |
3854 | [JOB_TIMEOUT] = "Timed out starting %s.", | |
3855 | }, | |
3856 | .finished_stop_job = { | |
3857 | [JOB_DONE] = "Stopped %s.", | |
3858 | [JOB_FAILED] = "Stopped (with error) %s.", | |
3859 | [JOB_TIMEOUT] = "Timed out stopping %s.", | |
3860 | }, | |
3861 | }, | |
5cb5a6ff | 3862 | }; |