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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" |
398ef8ba | 39 | #include "bus-errors.h" |
9a57c629 | 40 | #include "exit-status.h" |
f6a6225e | 41 | #include "def.h" |
9eb977db | 42 | #include "path-util.h" |
f6a6225e | 43 | #include "util.h" |
7f110ff9 | 44 | #include "utf8.h" |
034c6ed7 | 45 | |
07459bb6 | 46 | #ifdef HAVE_SYSV_COMPAT |
f34277d9 | 47 | |
f6a6225e | 48 | #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE) |
f34277d9 | 49 | |
09cd1ab1 LP |
50 | typedef enum RunlevelType { |
51 | RUNLEVEL_UP, | |
52 | RUNLEVEL_DOWN, | |
fc5df99e | 53 | RUNLEVEL_SYSINIT |
09cd1ab1 LP |
54 | } RunlevelType; |
55 | ||
56 | static const struct { | |
57 | const char *path; | |
58 | const char *target; | |
59 | const RunlevelType type; | |
60 | } rcnd_table[] = { | |
9d25f5ed | 61 | /* Standard SysV runlevels for start-up */ |
514f4ef5 | 62 | { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP }, |
fbe9f3a9 LP |
63 | { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP }, |
64 | { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP }, | |
65 | { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP }, | |
66 | { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP }, | |
fbe9f3a9 | 67 | |
d4054675 | 68 | #ifdef TARGET_SUSE |
cfe243e3 | 69 | /* SUSE style boot.d */ |
fc5df99e | 70 | { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT }, |
d4054675 | 71 | #endif |
fbe9f3a9 | 72 | |
240fc26e | 73 | #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) |
fbe9f3a9 | 74 | /* Debian style rcS.d */ |
fc5df99e | 75 | { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT }, |
d4054675 | 76 | #endif |
9d25f5ed LP |
77 | |
78 | /* Standard SysV runlevels for shutdown */ | |
79 | { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN }, | |
80 | { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN } | |
81 | ||
82 | /* Note that the order here matters, as we read the | |
83 | directories in this order, and we want to make sure that | |
84 | sysv_start_priority is known when we first load the | |
85 | unit. And that value we only know from S links. Hence | |
86 | UP/SYSINIT must be read before DOWN */ | |
23a177ef LP |
87 | }; |
88 | ||
09cd1ab1 | 89 | #define RUNLEVELS_UP "12345" |
fbe9f3a9 | 90 | /* #define RUNLEVELS_DOWN "06" */ |
e51db373 | 91 | #define RUNLEVELS_BOOT "bBsS" |
07459bb6 | 92 | #endif |
09cd1ab1 | 93 | |
acbb0225 | 94 | static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { |
87f0e418 LP |
95 | [SERVICE_DEAD] = UNIT_INACTIVE, |
96 | [SERVICE_START_PRE] = UNIT_ACTIVATING, | |
97 | [SERVICE_START] = UNIT_ACTIVATING, | |
98 | [SERVICE_START_POST] = UNIT_ACTIVATING, | |
99 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
80876c20 | 100 | [SERVICE_EXITED] = UNIT_ACTIVE, |
032ff4af | 101 | [SERVICE_RELOAD] = UNIT_RELOADING, |
87f0e418 LP |
102 | [SERVICE_STOP] = UNIT_DEACTIVATING, |
103 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, | |
104 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
105 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
106 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
107 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 108 | [SERVICE_FAILED] = UNIT_FAILED, |
6124958c | 109 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING |
034c6ed7 | 110 | }; |
5cb5a6ff | 111 | |
e056b01d LP |
112 | /* For Type=idle we never want to delay any other jobs, hence we |
113 | * consider idle jobs active as soon as we start working on them */ | |
114 | static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = { | |
115 | [SERVICE_DEAD] = UNIT_INACTIVE, | |
116 | [SERVICE_START_PRE] = UNIT_ACTIVE, | |
117 | [SERVICE_START] = UNIT_ACTIVE, | |
118 | [SERVICE_START_POST] = UNIT_ACTIVE, | |
119 | [SERVICE_RUNNING] = UNIT_ACTIVE, | |
120 | [SERVICE_EXITED] = UNIT_ACTIVE, | |
121 | [SERVICE_RELOAD] = UNIT_RELOADING, | |
122 | [SERVICE_STOP] = UNIT_DEACTIVATING, | |
123 | [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING, | |
124 | [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING, | |
125 | [SERVICE_STOP_POST] = UNIT_DEACTIVATING, | |
126 | [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING, | |
127 | [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
128 | [SERVICE_FAILED] = UNIT_FAILED, | |
129 | [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING | |
130 | }; | |
131 | ||
a16e1123 LP |
132 | static void service_init(Unit *u) { |
133 | Service *s = SERVICE(u); | |
134 | ||
135 | assert(u); | |
ac155bb8 | 136 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 137 | |
d568a335 MS |
138 | s->timeout_start_usec = DEFAULT_TIMEOUT_USEC; |
139 | s->timeout_stop_usec = DEFAULT_TIMEOUT_USEC; | |
a16e1123 | 140 | s->restart_usec = DEFAULT_RESTART_USEC; |
0b86feac | 141 | s->type = _SERVICE_TYPE_INVALID; |
bb242b7b MO |
142 | |
143 | s->watchdog_watch.type = WATCH_INVALID; | |
144 | ||
a16e1123 | 145 | s->timer_watch.type = WATCH_INVALID; |
07459bb6 | 146 | #ifdef HAVE_SYSV_COMPAT |
a16e1123 | 147 | s->sysv_start_priority = -1; |
ea87ca5a | 148 | s->sysv_start_priority_from_rcnd = -1; |
07459bb6 | 149 | #endif |
a16e1123 | 150 | s->socket_fd = -1; |
3185a36b | 151 | s->guess_main_pid = true; |
a16e1123 LP |
152 | |
153 | exec_context_init(&s->exec_context); | |
4819ff03 | 154 | kill_context_init(&s->kill_context); |
a16e1123 | 155 | |
4b939747 | 156 | RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5); |
a16e1123 LP |
157 | |
158 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
159 | } | |
160 | ||
5e94833f LP |
161 | static void service_unwatch_control_pid(Service *s) { |
162 | assert(s); | |
163 | ||
164 | if (s->control_pid <= 0) | |
165 | return; | |
166 | ||
167 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
168 | s->control_pid = 0; | |
169 | } | |
170 | ||
171 | static void service_unwatch_main_pid(Service *s) { | |
172 | assert(s); | |
173 | ||
174 | if (s->main_pid <= 0) | |
175 | return; | |
176 | ||
177 | unit_unwatch_pid(UNIT(s), s->main_pid); | |
178 | s->main_pid = 0; | |
179 | } | |
180 | ||
3e52541e MS |
181 | static void service_unwatch_pid_file(Service *s) { |
182 | if (!s->pid_file_pathspec) | |
183 | return; | |
184 | ||
185 | log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path); | |
186 | path_spec_unwatch(s->pid_file_pathspec, UNIT(s)); | |
187 | path_spec_done(s->pid_file_pathspec); | |
188 | free(s->pid_file_pathspec); | |
189 | s->pid_file_pathspec = NULL; | |
190 | } | |
191 | ||
5925dd3c | 192 | static int service_set_main_pid(Service *s, pid_t pid) { |
e55224ca LP |
193 | pid_t ppid; |
194 | ||
5925dd3c LP |
195 | assert(s); |
196 | ||
197 | if (pid <= 1) | |
198 | return -EINVAL; | |
199 | ||
200 | if (pid == getpid()) | |
201 | return -EINVAL; | |
202 | ||
6dfa5494 LP |
203 | s->main_pid = pid; |
204 | s->main_pid_known = true; | |
205 | ||
206 | if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) { | |
e55224ca | 207 | log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.", |
1124fe6f | 208 | UNIT(s)->id, (unsigned long) pid); |
e55224ca | 209 | |
6dfa5494 LP |
210 | s->main_pid_alien = true; |
211 | } else | |
212 | s->main_pid_alien = false; | |
5925dd3c | 213 | |
b58b4116 LP |
214 | exec_status_start(&s->main_exec_status, pid); |
215 | ||
5925dd3c LP |
216 | return 0; |
217 | } | |
218 | ||
4f2d528d LP |
219 | static void service_close_socket_fd(Service *s) { |
220 | assert(s); | |
221 | ||
222 | if (s->socket_fd < 0) | |
223 | return; | |
224 | ||
225 | close_nointr_nofail(s->socket_fd); | |
226 | s->socket_fd = -1; | |
227 | } | |
228 | ||
6cf6bbc2 LP |
229 | static void service_connection_unref(Service *s) { |
230 | assert(s); | |
231 | ||
57020a3a | 232 | if (!UNIT_DEREF(s->accept_socket)) |
6cf6bbc2 LP |
233 | return; |
234 | ||
57020a3a LP |
235 | socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); |
236 | unit_ref_unset(&s->accept_socket); | |
6cf6bbc2 LP |
237 | } |
238 | ||
a6927d7f MO |
239 | static void service_stop_watchdog(Service *s) { |
240 | assert(s); | |
241 | ||
bb242b7b | 242 | unit_unwatch_timer(UNIT(s), &s->watchdog_watch); |
a6927d7f MO |
243 | s->watchdog_timestamp.realtime = 0; |
244 | s->watchdog_timestamp.monotonic = 0; | |
245 | } | |
246 | ||
bb242b7b MO |
247 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart); |
248 | ||
249 | static void service_handle_watchdog(Service *s) { | |
250 | usec_t offset; | |
251 | int r; | |
252 | ||
253 | assert(s); | |
254 | ||
255 | if (s->watchdog_usec == 0) | |
256 | return; | |
257 | ||
258 | offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic; | |
259 | if (offset >= s->watchdog_usec) { | |
260 | log_error("%s watchdog timeout!", UNIT(s)->id); | |
261 | service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true); | |
262 | return; | |
263 | } | |
264 | ||
265 | r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch); | |
266 | if (r < 0) | |
267 | log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r)); | |
268 | } | |
269 | ||
a6927d7f MO |
270 | static void service_reset_watchdog(Service *s) { |
271 | assert(s); | |
272 | ||
273 | dual_timestamp_get(&s->watchdog_timestamp); | |
bb242b7b | 274 | service_handle_watchdog(s); |
a6927d7f MO |
275 | } |
276 | ||
87f0e418 LP |
277 | static void service_done(Unit *u) { |
278 | Service *s = SERVICE(u); | |
44d8db9e LP |
279 | |
280 | assert(s); | |
281 | ||
282 | free(s->pid_file); | |
283 | s->pid_file = NULL; | |
284 | ||
07459bb6 | 285 | #ifdef HAVE_SYSV_COMPAT |
8309400a LP |
286 | free(s->sysv_runlevels); |
287 | s->sysv_runlevels = NULL; | |
07459bb6 | 288 | #endif |
8309400a | 289 | |
8c47c732 LP |
290 | free(s->status_text); |
291 | s->status_text = NULL; | |
292 | ||
44d8db9e | 293 | exec_context_done(&s->exec_context); |
e537352b | 294 | exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); |
44d8db9e | 295 | s->control_command = NULL; |
867b3b7d | 296 | s->main_command = NULL; |
44d8db9e | 297 | |
96342de6 LN |
298 | set_free(s->restart_ignore_status.code); |
299 | s->restart_ignore_status.code = NULL; | |
300 | set_free(s->restart_ignore_status.signal); | |
301 | s->restart_ignore_status.signal = NULL; | |
302 | ||
303 | set_free(s->success_status.code); | |
304 | s->success_status.code = NULL; | |
305 | set_free(s->success_status.signal); | |
306 | s->success_status.signal = NULL; | |
307 | ||
44d8db9e LP |
308 | /* This will leak a process, but at least no memory or any of |
309 | * our resources */ | |
5e94833f LP |
310 | service_unwatch_main_pid(s); |
311 | service_unwatch_control_pid(s); | |
3e52541e | 312 | service_unwatch_pid_file(s); |
44d8db9e | 313 | |
05e343b7 | 314 | if (s->bus_name) { |
ac155bb8 | 315 | unit_unwatch_bus_name(u, s->bus_name); |
05e343b7 LP |
316 | free(s->bus_name); |
317 | s->bus_name = NULL; | |
318 | } | |
319 | ||
4f2d528d | 320 | service_close_socket_fd(s); |
6cf6bbc2 | 321 | service_connection_unref(s); |
4f2d528d | 322 | |
57020a3a | 323 | unit_ref_unset(&s->accept_socket); |
f976f3f6 | 324 | |
bb242b7b MO |
325 | service_stop_watchdog(s); |
326 | ||
acbb0225 | 327 | unit_unwatch_timer(u, &s->timer_watch); |
44d8db9e LP |
328 | } |
329 | ||
07459bb6 | 330 | #ifdef HAVE_SYSV_COMPAT |
b7ccee3c LP |
331 | static char *sysv_translate_name(const char *name) { |
332 | char *r; | |
333 | ||
334 | if (!(r = new(char, strlen(name) + sizeof(".service")))) | |
335 | return NULL; | |
336 | ||
1bd8b818 | 337 | #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) |
5b819198 MB |
338 | if (endswith(name, ".sh")) |
339 | /* Drop Debian-style .sh suffix */ | |
340 | strcpy(stpcpy(r, name) - 3, ".service"); | |
341 | #endif | |
342 | #ifdef TARGET_SUSE | |
b7ccee3c LP |
343 | if (startswith(name, "boot.")) |
344 | /* Drop SuSE-style boot. prefix */ | |
345 | strcpy(stpcpy(r, name + 5), ".service"); | |
5b819198 | 346 | #endif |
65530632 | 347 | #ifdef TARGET_FRUGALWARE |
5b819198 | 348 | if (startswith(name, "rc.")) |
65530632 MV |
349 | /* Drop Frugalware-style rc. prefix */ |
350 | strcpy(stpcpy(r, name + 3), ".service"); | |
980900c1 | 351 | #endif |
b7ccee3c LP |
352 | else |
353 | /* Normal init scripts */ | |
354 | strcpy(stpcpy(r, name), ".service"); | |
355 | ||
356 | return r; | |
357 | } | |
358 | ||
ee95669f | 359 | static int sysv_translate_facility(const char *name, const char *filename, char **_r) { |
2c4104f0 | 360 | |
a7d3cc26 LP |
361 | /* We silently ignore the $ prefix here. According to the LSB |
362 | * spec it simply indicates whether something is a | |
363 | * standardized name or a distribution-specific one. Since we | |
364 | * just follow what already exists and do not introduce new | |
365 | * uses or names we don't care who introduced a new name. */ | |
366 | ||
2c4104f0 | 367 | static const char * const table[] = { |
6464aa08 | 368 | /* LSB defined facilities */ |
a7d3cc26 | 369 | "local_fs", SPECIAL_LOCAL_FS_TARGET, |
6fdae8a6 DM |
370 | #if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA) |
371 | #else | |
8d0e38a2 LP |
372 | /* Due to unfortunate name selection in Mandriva, |
373 | * $network is provided by network-up which is ordered | |
374 | * after network which actually starts interfaces. | |
375 | * To break the loop, just ignore it */ | |
a7d3cc26 | 376 | "network", SPECIAL_NETWORK_TARGET, |
1de4d79b | 377 | #endif |
a7d3cc26 LP |
378 | "named", SPECIAL_NSS_LOOKUP_TARGET, |
379 | "portmap", SPECIAL_RPCBIND_TARGET, | |
380 | "remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
381 | "syslog", SPECIAL_SYSLOG_TARGET, | |
4466194c | 382 | "time", SPECIAL_TIME_SYNC_TARGET, |
6464aa08 | 383 | |
0b603b4e KS |
384 | /* common extensions */ |
385 | "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, | |
386 | "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE, | |
387 | "null", NULL, | |
388 | ||
1bd8b818 | 389 | #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) |
a7d3cc26 | 390 | "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, |
3177a49c | 391 | #endif |
3177a49c LP |
392 | |
393 | #ifdef TARGET_FEDORA | |
a7d3cc26 LP |
394 | "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, |
395 | "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, | |
396 | "httpd", SPECIAL_HTTP_DAEMON_TARGET, | |
3177a49c | 397 | #endif |
a7d3cc26 | 398 | |
0b603b4e KS |
399 | #ifdef TARGET_SUSE |
400 | "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, | |
401 | #endif | |
2c4104f0 LP |
402 | }; |
403 | ||
404 | unsigned i; | |
405 | char *r; | |
ee95669f | 406 | const char *n; |
2c4104f0 | 407 | |
ee95669f LP |
408 | assert(name); |
409 | assert(_r); | |
a7d3cc26 | 410 | |
ee95669f | 411 | n = *name == '$' ? name + 1 : name; |
a7d3cc26 | 412 | |
ee95669f | 413 | for (i = 0; i < ELEMENTSOF(table); i += 2) { |
a7d3cc26 | 414 | |
ee95669f LP |
415 | if (!streq(table[i], n)) |
416 | continue; | |
2c4104f0 | 417 | |
ee95669f LP |
418 | if (!table[i+1]) |
419 | return 0; | |
420 | ||
421 | if (!(r = strdup(table[i+1]))) | |
422 | return -ENOMEM; | |
423 | ||
424 | goto finish; | |
425 | } | |
2c4104f0 | 426 | |
a7d3cc26 | 427 | /* If we don't know this name, fallback heuristics to figure |
0003d1ab | 428 | * out whether something is a target or a service alias. */ |
a7d3cc26 | 429 | |
e83c7c0b LP |
430 | if (*name == '$') { |
431 | if (!unit_prefix_is_valid(n)) | |
432 | return -EINVAL; | |
433 | ||
ee95669f LP |
434 | /* Facilities starting with $ are most likely targets */ |
435 | r = unit_name_build(n, NULL, ".target"); | |
e83c7c0b | 436 | } else if (filename && streq(name, filename)) |
35b8ca3a | 437 | /* Names equaling the file name of the services are redundant */ |
ee95669f | 438 | return 0; |
32159d3a | 439 | else |
ee95669f LP |
440 | /* Everything else we assume to be normal service names */ |
441 | r = sysv_translate_name(n); | |
2c4104f0 | 442 | |
32159d3a | 443 | if (!r) |
2c4104f0 LP |
444 | return -ENOMEM; |
445 | ||
446 | finish: | |
b4353094 | 447 | *_r = r; |
2c4104f0 LP |
448 | |
449 | return 1; | |
450 | } | |
451 | ||
56d748b4 | 452 | static int sysv_fix_order(Service *s) { |
ac155bb8 | 453 | Unit *other; |
2c4104f0 LP |
454 | int r; |
455 | ||
456 | assert(s); | |
457 | ||
458 | if (s->sysv_start_priority < 0) | |
459 | return 0; | |
460 | ||
23a177ef LP |
461 | /* For each pair of services where at least one lacks a LSB |
462 | * header, we use the start priority value to order things. */ | |
2c4104f0 | 463 | |
1124fe6f | 464 | LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) { |
2c4104f0 LP |
465 | Service *t; |
466 | UnitDependency d; | |
eeaafddc | 467 | bool special_s, special_t; |
2c4104f0 | 468 | |
595ed347 | 469 | t = SERVICE(other); |
2c4104f0 LP |
470 | |
471 | if (s == t) | |
472 | continue; | |
9f151f29 | 473 | |
1124fe6f | 474 | if (UNIT(t)->load_state != UNIT_LOADED) |
9f151f29 | 475 | continue; |
2c4104f0 LP |
476 | |
477 | if (t->sysv_start_priority < 0) | |
478 | continue; | |
479 | ||
51a1a79d LP |
480 | /* If both units have modern headers we don't care |
481 | * about the priorities */ | |
1124fe6f MS |
482 | if ((UNIT(s)->fragment_path || s->sysv_has_lsb) && |
483 | (UNIT(t)->fragment_path || t->sysv_has_lsb)) | |
23a177ef LP |
484 | continue; |
485 | ||
eeaafddc LP |
486 | special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels); |
487 | special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels); | |
488 | ||
489 | if (special_t && !special_s) | |
490 | d = UNIT_AFTER; | |
491 | else if (special_s && !special_t) | |
492 | d = UNIT_BEFORE; | |
493 | else if (t->sysv_start_priority < s->sysv_start_priority) | |
2c4104f0 LP |
494 | d = UNIT_AFTER; |
495 | else if (t->sysv_start_priority > s->sysv_start_priority) | |
496 | d = UNIT_BEFORE; | |
497 | else | |
498 | continue; | |
499 | ||
500 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
501 | ||
da19d5c1 | 502 | if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) |
2c4104f0 LP |
503 | return r; |
504 | } | |
505 | ||
506 | return 0; | |
507 | } | |
508 | ||
509 | static ExecCommand *exec_command_new(const char *path, const char *arg1) { | |
510 | ExecCommand *c; | |
511 | ||
512 | if (!(c = new0(ExecCommand, 1))) | |
513 | return NULL; | |
514 | ||
515 | if (!(c->path = strdup(path))) { | |
516 | free(c); | |
517 | return NULL; | |
518 | } | |
519 | ||
520 | if (!(c->argv = strv_new(path, arg1, NULL))) { | |
521 | free(c->path); | |
522 | free(c); | |
523 | return NULL; | |
524 | } | |
525 | ||
526 | return c; | |
527 | } | |
528 | ||
529 | static int sysv_exec_commands(Service *s) { | |
530 | ExecCommand *c; | |
531 | ||
532 | assert(s); | |
1b64d026 LP |
533 | assert(s->is_sysv); |
534 | assert(UNIT(s)->source_path); | |
2c4104f0 | 535 | |
1b64d026 LP |
536 | c = exec_command_new(UNIT(s)->source_path, "start"); |
537 | if (!c) | |
2c4104f0 LP |
538 | return -ENOMEM; |
539 | exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c); | |
540 | ||
1b64d026 LP |
541 | c = exec_command_new(UNIT(s)->source_path, "stop"); |
542 | if (!c) | |
2c4104f0 LP |
543 | return -ENOMEM; |
544 | exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c); | |
545 | ||
1b64d026 LP |
546 | c = exec_command_new(UNIT(s)->source_path, "reload"); |
547 | if (!c) | |
2c4104f0 LP |
548 | return -ENOMEM; |
549 | exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c); | |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
e537352b | 554 | static int service_load_sysv_path(Service *s, const char *path) { |
2c4104f0 LP |
555 | FILE *f; |
556 | Unit *u; | |
557 | unsigned line = 0; | |
558 | int r; | |
559 | enum { | |
560 | NORMAL, | |
561 | DESCRIPTION, | |
562 | LSB, | |
563 | LSB_DESCRIPTION | |
564 | } state = NORMAL; | |
0b5d26f9 | 565 | char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description; |
5f4b19f4 | 566 | struct stat st; |
23a177ef LP |
567 | |
568 | assert(s); | |
569 | assert(path); | |
2c4104f0 LP |
570 | |
571 | u = UNIT(s); | |
572 | ||
1b64d026 LP |
573 | f = fopen(path, "re"); |
574 | if (!f) { | |
2c4104f0 LP |
575 | r = errno == ENOENT ? 0 : -errno; |
576 | goto finish; | |
577 | } | |
578 | ||
5f4b19f4 LP |
579 | if (fstat(fileno(f), &st) < 0) { |
580 | r = -errno; | |
581 | goto finish; | |
582 | } | |
583 | ||
1b64d026 LP |
584 | free(u->source_path); |
585 | u->source_path = strdup(path); | |
586 | if (!u->source_path) { | |
2c4104f0 LP |
587 | r = -ENOMEM; |
588 | goto finish; | |
589 | } | |
1b64d026 | 590 | u->source_mtime = timespec_load(&st.st_mtim); |
5f4b19f4 LP |
591 | |
592 | if (null_or_empty(&st)) { | |
ac155bb8 | 593 | u->load_state = UNIT_MASKED; |
5f4b19f4 LP |
594 | r = 0; |
595 | goto finish; | |
596 | } | |
597 | ||
1b64d026 LP |
598 | s->is_sysv = true; |
599 | ||
2c4104f0 LP |
600 | while (!feof(f)) { |
601 | char l[LINE_MAX], *t; | |
602 | ||
603 | if (!fgets(l, sizeof(l), f)) { | |
604 | if (feof(f)) | |
605 | break; | |
606 | ||
607 | r = -errno; | |
608 | log_error("Failed to read configuration file '%s': %s", path, strerror(-r)); | |
609 | goto finish; | |
610 | } | |
611 | ||
612 | line++; | |
613 | ||
614 | t = strstrip(l); | |
615 | if (*t != '#') | |
616 | continue; | |
617 | ||
618 | if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { | |
619 | state = LSB; | |
23a177ef | 620 | s->sysv_has_lsb = true; |
2c4104f0 LP |
621 | continue; |
622 | } | |
623 | ||
624 | if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) { | |
625 | state = NORMAL; | |
626 | continue; | |
627 | } | |
628 | ||
629 | t++; | |
630 | t += strspn(t, WHITESPACE); | |
631 | ||
632 | if (state == NORMAL) { | |
633 | ||
634 | /* Try to parse Red Hat style chkconfig headers */ | |
635 | ||
c2b35af6 | 636 | if (startswith_no_case(t, "chkconfig:")) { |
2c4104f0 | 637 | int start_priority; |
8309400a | 638 | char runlevels[16], *k; |
2c4104f0 LP |
639 | |
640 | state = NORMAL; | |
641 | ||
8309400a LP |
642 | if (sscanf(t+10, "%15s %i %*i", |
643 | runlevels, | |
644 | &start_priority) != 2) { | |
2c4104f0 LP |
645 | |
646 | log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line); | |
647 | continue; | |
648 | } | |
649 | ||
fbe9f3a9 LP |
650 | /* A start priority gathered from the |
651 | * symlink farms is preferred over the | |
652 | * data from the LSB header. */ | |
8309400a | 653 | if (start_priority < 0 || start_priority > 99) |
2c4104f0 | 654 | log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line); |
ea87ca5a | 655 | else |
8309400a LP |
656 | s->sysv_start_priority = start_priority; |
657 | ||
658 | char_array_0(runlevels); | |
659 | k = delete_chars(runlevels, WHITESPACE "-"); | |
660 | ||
661 | if (k[0]) { | |
662 | char *d; | |
663 | ||
664 | if (!(d = strdup(k))) { | |
665 | r = -ENOMEM; | |
666 | goto finish; | |
667 | } | |
668 | ||
669 | free(s->sysv_runlevels); | |
670 | s->sysv_runlevels = d; | |
2c4104f0 LP |
671 | } |
672 | ||
0b5d26f9 | 673 | } else if (startswith_no_case(t, "description:")) { |
2c4104f0 LP |
674 | |
675 | size_t k = strlen(t); | |
676 | char *d; | |
0b5d26f9 | 677 | const char *j; |
2c4104f0 LP |
678 | |
679 | if (t[k-1] == '\\') { | |
680 | state = DESCRIPTION; | |
681 | t[k-1] = 0; | |
682 | } | |
683 | ||
0b5d26f9 LP |
684 | if ((j = strstrip(t+12)) && *j) { |
685 | if (!(d = strdup(j))) { | |
686 | r = -ENOMEM; | |
687 | goto finish; | |
688 | } | |
689 | } else | |
690 | d = NULL; | |
2c4104f0 | 691 | |
0b5d26f9 LP |
692 | free(chkconfig_description); |
693 | chkconfig_description = d; | |
2c4104f0 | 694 | |
c2b35af6 | 695 | } else if (startswith_no_case(t, "pidfile:")) { |
2c4104f0 LP |
696 | |
697 | char *fn; | |
698 | ||
699 | state = NORMAL; | |
700 | ||
701 | fn = strstrip(t+8); | |
702 | if (!path_is_absolute(fn)) { | |
703 | log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line); | |
704 | continue; | |
705 | } | |
706 | ||
707 | if (!(fn = strdup(fn))) { | |
708 | r = -ENOMEM; | |
709 | goto finish; | |
710 | } | |
711 | ||
712 | free(s->pid_file); | |
713 | s->pid_file = fn; | |
714 | } | |
715 | ||
716 | } else if (state == DESCRIPTION) { | |
717 | ||
718 | /* Try to parse Red Hat style description | |
719 | * continuation */ | |
720 | ||
721 | size_t k = strlen(t); | |
0b5d26f9 | 722 | char *j; |
2c4104f0 LP |
723 | |
724 | if (t[k-1] == '\\') | |
725 | t[k-1] = 0; | |
726 | else | |
727 | state = NORMAL; | |
728 | ||
0b5d26f9 LP |
729 | if ((j = strstrip(t)) && *j) { |
730 | char *d = NULL; | |
731 | ||
732 | if (chkconfig_description) | |
b7def684 | 733 | d = strjoin(chkconfig_description, " ", j, NULL); |
0b5d26f9 LP |
734 | else |
735 | d = strdup(j); | |
2c4104f0 | 736 | |
0b5d26f9 LP |
737 | if (!d) { |
738 | r = -ENOMEM; | |
739 | goto finish; | |
740 | } | |
741 | ||
742 | free(chkconfig_description); | |
743 | chkconfig_description = d; | |
744 | } | |
2c4104f0 LP |
745 | |
746 | } else if (state == LSB || state == LSB_DESCRIPTION) { | |
747 | ||
c2b35af6 | 748 | if (startswith_no_case(t, "Provides:")) { |
2c4104f0 LP |
749 | char *i, *w; |
750 | size_t z; | |
751 | ||
752 | state = LSB; | |
753 | ||
f60f22df | 754 | FOREACH_WORD_QUOTED(w, z, t+9, i) { |
2c4104f0 LP |
755 | char *n, *m; |
756 | ||
757 | if (!(n = strndup(w, z))) { | |
758 | r = -ENOMEM; | |
759 | goto finish; | |
760 | } | |
761 | ||
9eb977db | 762 | r = sysv_translate_facility(n, path_get_file_name(path), &m); |
2c4104f0 LP |
763 | free(n); |
764 | ||
765 | if (r < 0) | |
766 | goto finish; | |
767 | ||
768 | if (r == 0) | |
769 | continue; | |
770 | ||
bd77d0fc LP |
771 | if (unit_name_to_type(m) == UNIT_SERVICE) |
772 | r = unit_add_name(u, m); | |
9700edb4 LP |
773 | else |
774 | /* NB: SysV targets | |
775 | * which are provided | |
776 | * by a service are | |
777 | * pulled in by the | |
778 | * services, as an | |
779 | * indication that the | |
780 | * generic service is | |
781 | * now available. This | |
782 | * is strictly | |
783 | * one-way. The | |
784 | * targets do NOT pull | |
785 | * in the SysV | |
786 | * services! */ | |
787 | r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true); | |
bd77d0fc | 788 | |
2c4104f0 | 789 | if (r < 0) |
43a37549 | 790 | log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r)); |
42a097a2 LP |
791 | |
792 | free(m); | |
2c4104f0 LP |
793 | } |
794 | ||
c2b35af6 LP |
795 | } else if (startswith_no_case(t, "Required-Start:") || |
796 | startswith_no_case(t, "Should-Start:") || | |
797 | startswith_no_case(t, "X-Start-Before:") || | |
798 | startswith_no_case(t, "X-Start-After:")) { | |
2c4104f0 LP |
799 | char *i, *w; |
800 | size_t z; | |
801 | ||
802 | state = LSB; | |
803 | ||
f60f22df | 804 | FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) { |
2c4104f0 LP |
805 | char *n, *m; |
806 | ||
807 | if (!(n = strndup(w, z))) { | |
808 | r = -ENOMEM; | |
809 | goto finish; | |
810 | } | |
811 | ||
9eb977db | 812 | r = sysv_translate_facility(n, path_get_file_name(path), &m); |
2c4104f0 | 813 | |
e83c7c0b LP |
814 | if (r < 0) { |
815 | log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r)); | |
816 | free(n); | |
817 | continue; | |
818 | } | |
819 | ||
820 | free(n); | |
2c4104f0 LP |
821 | |
822 | if (r == 0) | |
823 | continue; | |
824 | ||
c2b35af6 | 825 | r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true); |
2c4104f0 LP |
826 | |
827 | if (r < 0) | |
43a37549 | 828 | log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r)); |
42a097a2 LP |
829 | |
830 | free(m); | |
2c4104f0 | 831 | } |
c2b35af6 | 832 | } else if (startswith_no_case(t, "Default-Start:")) { |
8309400a LP |
833 | char *k, *d; |
834 | ||
835 | state = LSB; | |
836 | ||
837 | k = delete_chars(t+14, WHITESPACE "-"); | |
838 | ||
839 | if (k[0] != 0) { | |
840 | if (!(d = strdup(k))) { | |
841 | r = -ENOMEM; | |
842 | goto finish; | |
843 | } | |
844 | ||
845 | free(s->sysv_runlevels); | |
846 | s->sysv_runlevels = d; | |
847 | } | |
2c4104f0 | 848 | |
0b5d26f9 LP |
849 | } else if (startswith_no_case(t, "Description:")) { |
850 | char *d, *j; | |
ed4c1cc6 | 851 | |
2c4104f0 LP |
852 | state = LSB_DESCRIPTION; |
853 | ||
0b5d26f9 LP |
854 | if ((j = strstrip(t+12)) && *j) { |
855 | if (!(d = strdup(j))) { | |
856 | r = -ENOMEM; | |
857 | goto finish; | |
858 | } | |
859 | } else | |
860 | d = NULL; | |
2c4104f0 | 861 | |
0b5d26f9 LP |
862 | free(long_description); |
863 | long_description = d; | |
2c4104f0 | 864 | |
ed4c1cc6 | 865 | } else if (startswith_no_case(t, "Short-Description:")) { |
0b5d26f9 | 866 | char *d, *j; |
2c4104f0 | 867 | |
2c4104f0 LP |
868 | state = LSB; |
869 | ||
0b5d26f9 LP |
870 | if ((j = strstrip(t+18)) && *j) { |
871 | if (!(d = strdup(j))) { | |
872 | r = -ENOMEM; | |
873 | goto finish; | |
874 | } | |
875 | } else | |
876 | d = NULL; | |
2c4104f0 | 877 | |
0b5d26f9 LP |
878 | free(short_description); |
879 | short_description = d; | |
2c4104f0 LP |
880 | |
881 | } else if (state == LSB_DESCRIPTION) { | |
882 | ||
883 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
0b5d26f9 | 884 | char *j; |
2c4104f0 | 885 | |
0b5d26f9 LP |
886 | if ((j = strstrip(t)) && *j) { |
887 | char *d = NULL; | |
888 | ||
889 | if (long_description) | |
b7def684 | 890 | d = strjoin(long_description, " ", t, NULL); |
0b5d26f9 LP |
891 | else |
892 | d = strdup(j); | |
893 | ||
894 | if (!d) { | |
895 | r = -ENOMEM; | |
896 | goto finish; | |
897 | } | |
898 | ||
899 | free(long_description); | |
900 | long_description = d; | |
2c4104f0 LP |
901 | } |
902 | ||
2c4104f0 LP |
903 | } else |
904 | state = LSB; | |
905 | } | |
906 | } | |
907 | } | |
908 | ||
2c4104f0 LP |
909 | if ((r = sysv_exec_commands(s)) < 0) |
910 | goto finish; | |
e51db373 TFH |
911 | if (s->sysv_runlevels && |
912 | chars_intersect(RUNLEVELS_BOOT, s->sysv_runlevels) && | |
913 | chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) { | |
914 | /* Service has both boot and "up" runlevels | |
915 | configured. Kill the "up" ones. */ | |
916 | delete_chars(s->sysv_runlevels, RUNLEVELS_UP); | |
917 | } | |
2c4104f0 | 918 | |
a40eb732 | 919 | if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) { |
0bc824be LP |
920 | /* If there a runlevels configured for this service |
921 | * but none of the standard ones, then we assume this | |
922 | * is some special kind of service (which might be | |
923 | * needed for early boot) and don't create any links | |
924 | * to it. */ | |
925 | ||
1124fe6f | 926 | UNIT(s)->default_dependencies = false; |
09cd1ab1 | 927 | |
09cd1ab1 | 928 | /* Don't timeout special services during boot (like fsck) */ |
d568a335 MS |
929 | s->timeout_start_usec = 0; |
930 | s->timeout_stop_usec = 0; | |
931 | } else { | |
932 | s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC; | |
933 | s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC; | |
934 | } | |
935 | ||
80876c20 | 936 | /* Special setting for all SysV services */ |
1f48cf56 | 937 | s->type = SERVICE_FORKING; |
f8788303 | 938 | s->remain_after_exit = !s->pid_file; |
1835f23c | 939 | s->guess_main_pid = false; |
525ee6f4 | 940 | s->restart = SERVICE_RESTART_NO; |
353e12c2 | 941 | s->exec_context.ignore_sigpipe = false; |
4819ff03 | 942 | s->kill_context.kill_mode = KILL_PROCESS; |
80876c20 | 943 | |
0b5d26f9 LP |
944 | /* We use the long description only if |
945 | * no short description is set. */ | |
946 | ||
947 | if (short_description) | |
948 | description = short_description; | |
949 | else if (chkconfig_description) | |
950 | description = chkconfig_description; | |
951 | else if (long_description) | |
952 | description = long_description; | |
953 | else | |
954 | description = NULL; | |
955 | ||
956 | if (description) { | |
957 | char *d; | |
958 | ||
e527618d | 959 | if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) { |
0b5d26f9 LP |
960 | r = -ENOMEM; |
961 | goto finish; | |
962 | } | |
963 | ||
ac155bb8 | 964 | u->description = d; |
0b5d26f9 LP |
965 | } |
966 | ||
ea87ca5a LP |
967 | /* The priority that has been set in /etc/rcN.d/ hierarchies |
968 | * takes precedence over what is stored as default in the LSB | |
969 | * header */ | |
970 | if (s->sysv_start_priority_from_rcnd >= 0) | |
971 | s->sysv_start_priority = s->sysv_start_priority_from_rcnd; | |
972 | ||
ac155bb8 | 973 | u->load_state = UNIT_LOADED; |
23a177ef | 974 | r = 0; |
2c4104f0 LP |
975 | |
976 | finish: | |
977 | ||
978 | if (f) | |
979 | fclose(f); | |
980 | ||
0b5d26f9 LP |
981 | free(short_description); |
982 | free(long_description); | |
983 | free(chkconfig_description); | |
984 | ||
2c4104f0 LP |
985 | return r; |
986 | } | |
987 | ||
e537352b | 988 | static int service_load_sysv_name(Service *s, const char *name) { |
2c4104f0 LP |
989 | char **p; |
990 | ||
991 | assert(s); | |
992 | assert(name); | |
993 | ||
e1992852 | 994 | /* For SysV services we strip the boot.*, rc.* and *.sh |
d017c6ca | 995 | * prefixes/suffixes. */ |
1bd8b818 | 996 | #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) |
5b819198 | 997 | if (endswith(name, ".sh.service")) |
d017c6ca | 998 | return -ENOENT; |
5b819198 MB |
999 | #endif |
1000 | ||
1001 | #ifdef TARGET_SUSE | |
1002 | if (startswith(name, "boot.")) | |
1003 | return -ENOENT; | |
1004 | #endif | |
1005 | ||
1006 | #ifdef TARGET_FRUGALWARE | |
1007 | if (startswith(name, "rc.")) | |
1008 | return -ENOENT; | |
1009 | #endif | |
d017c6ca | 1010 | |
1124fe6f | 1011 | STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) { |
2c4104f0 LP |
1012 | char *path; |
1013 | int r; | |
1014 | ||
b7def684 | 1015 | path = strjoin(*p, "/", name, NULL); |
44d91056 | 1016 | if (!path) |
2c4104f0 LP |
1017 | return -ENOMEM; |
1018 | ||
1019 | assert(endswith(path, ".service")); | |
1020 | path[strlen(path)-8] = 0; | |
1021 | ||
e537352b | 1022 | r = service_load_sysv_path(s, path); |
fbe9f3a9 | 1023 | |
1bd8b818 | 1024 | #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) |
1124fe6f | 1025 | if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) { |
e1992852 | 1026 | /* Try Debian style *.sh source'able init scripts */ |
fbe9f3a9 LP |
1027 | strcat(path, ".sh"); |
1028 | r = service_load_sysv_path(s, path); | |
1029 | } | |
e1992852 | 1030 | #endif |
2c4104f0 LP |
1031 | free(path); |
1032 | ||
e1992852 | 1033 | #ifdef TARGET_SUSE |
1124fe6f | 1034 | if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) { |
e1992852 | 1035 | /* Try SUSE style boot.* init scripts */ |
fbe9f3a9 | 1036 | |
b7def684 | 1037 | path = strjoin(*p, "/boot.", name, NULL); |
44d91056 | 1038 | if (!path) |
fbe9f3a9 LP |
1039 | return -ENOMEM; |
1040 | ||
e1992852 | 1041 | /* Drop .service suffix */ |
fbe9f3a9 LP |
1042 | path[strlen(path)-8] = 0; |
1043 | r = service_load_sysv_path(s, path); | |
1044 | free(path); | |
1045 | } | |
e1992852 | 1046 | #endif |
fbe9f3a9 | 1047 | |
e1992852 | 1048 | #ifdef TARGET_FRUGALWARE |
1124fe6f | 1049 | if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) { |
e1992852 | 1050 | /* Try Frugalware style rc.* init scripts */ |
65530632 | 1051 | |
b7def684 | 1052 | path = strjoin(*p, "/rc.", name, NULL); |
44d91056 | 1053 | if (!path) |
65530632 MV |
1054 | return -ENOMEM; |
1055 | ||
e1992852 | 1056 | /* Drop .service suffix */ |
65530632 MV |
1057 | path[strlen(path)-8] = 0; |
1058 | r = service_load_sysv_path(s, path); | |
1059 | free(path); | |
1060 | } | |
e1992852 | 1061 | #endif |
65530632 | 1062 | |
23a177ef | 1063 | if (r < 0) |
2c4104f0 | 1064 | return r; |
23a177ef | 1065 | |
1124fe6f | 1066 | if ((UNIT(s)->load_state != UNIT_STUB)) |
23a177ef | 1067 | break; |
2c4104f0 LP |
1068 | } |
1069 | ||
1070 | return 0; | |
1071 | } | |
1072 | ||
e537352b | 1073 | static int service_load_sysv(Service *s) { |
2c4104f0 LP |
1074 | const char *t; |
1075 | Iterator i; | |
1076 | int r; | |
1077 | ||
5cb5a6ff LP |
1078 | assert(s); |
1079 | ||
1080 | /* Load service data from SysV init scripts, preferably with | |
1081 | * LSB headers ... */ | |
1082 | ||
1124fe6f | 1083 | if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path)) |
2c4104f0 LP |
1084 | return 0; |
1085 | ||
1124fe6f | 1086 | if ((t = UNIT(s)->id)) |
e537352b | 1087 | if ((r = service_load_sysv_name(s, t)) < 0) |
2c4104f0 LP |
1088 | return r; |
1089 | ||
1124fe6f MS |
1090 | if (UNIT(s)->load_state == UNIT_STUB) |
1091 | SET_FOREACH(t, UNIT(s)->names, i) { | |
1092 | if (t == UNIT(s)->id) | |
e537352b LP |
1093 | continue; |
1094 | ||
e364ad06 | 1095 | if ((r = service_load_sysv_name(s, t)) < 0) |
23a177ef LP |
1096 | return r; |
1097 | ||
1124fe6f | 1098 | if (UNIT(s)->load_state != UNIT_STUB) |
23a177ef LP |
1099 | break; |
1100 | } | |
2c4104f0 LP |
1101 | |
1102 | return 0; | |
5cb5a6ff | 1103 | } |
07459bb6 | 1104 | #endif |
5cb5a6ff | 1105 | |
9fff8a1f | 1106 | static int fsck_fix_order(Service *s) { |
ac155bb8 | 1107 | Unit *other; |
9fff8a1f LP |
1108 | int r; |
1109 | ||
1110 | assert(s); | |
1111 | ||
1112 | if (s->fsck_passno <= 0) | |
1113 | return 0; | |
1114 | ||
1115 | /* For each pair of services where both have an fsck priority | |
1116 | * we order things based on it. */ | |
1117 | ||
1124fe6f | 1118 | LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) { |
9fff8a1f LP |
1119 | Service *t; |
1120 | UnitDependency d; | |
1121 | ||
595ed347 | 1122 | t = SERVICE(other); |
9fff8a1f LP |
1123 | |
1124 | if (s == t) | |
1125 | continue; | |
1126 | ||
1124fe6f | 1127 | if (UNIT(t)->load_state != UNIT_LOADED) |
9fff8a1f LP |
1128 | continue; |
1129 | ||
1130 | if (t->fsck_passno <= 0) | |
1131 | continue; | |
1132 | ||
1133 | if (t->fsck_passno < s->fsck_passno) | |
1134 | d = UNIT_AFTER; | |
1135 | else if (t->fsck_passno > s->fsck_passno) | |
1136 | d = UNIT_BEFORE; | |
1137 | else | |
1138 | continue; | |
1139 | ||
da19d5c1 | 1140 | if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) |
9fff8a1f LP |
1141 | return r; |
1142 | } | |
1143 | ||
1144 | return 0; | |
1145 | } | |
1146 | ||
243b1432 LP |
1147 | static int service_verify(Service *s) { |
1148 | assert(s); | |
1149 | ||
1124fe6f | 1150 | if (UNIT(s)->load_state != UNIT_LOADED) |
243b1432 LP |
1151 | return 0; |
1152 | ||
1153 | if (!s->exec_command[SERVICE_EXEC_START]) { | |
1124fe6f | 1154 | log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id); |
243b1432 LP |
1155 | return -EINVAL; |
1156 | } | |
1157 | ||
34e9ba66 LP |
1158 | if (s->type != SERVICE_ONESHOT && |
1159 | s->exec_command[SERVICE_EXEC_START]->command_next) { | |
1124fe6f | 1160 | log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id); |
6cf6bbc2 LP |
1161 | return -EINVAL; |
1162 | } | |
1163 | ||
c06b7a15 LP |
1164 | if (s->type == SERVICE_ONESHOT && |
1165 | s->exec_command[SERVICE_EXEC_RELOAD]) { | |
1124fe6f | 1166 | log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", UNIT(s)->id); |
c06b7a15 LP |
1167 | return -EINVAL; |
1168 | } | |
1169 | ||
05e343b7 | 1170 | if (s->type == SERVICE_DBUS && !s->bus_name) { |
1124fe6f | 1171 | log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id); |
4d0e5dbd LP |
1172 | return -EINVAL; |
1173 | } | |
1174 | ||
7e2668c6 LP |
1175 | if (s->bus_name && s->type != SERVICE_DBUS) |
1176 | log_warning("%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id); | |
1177 | ||
4819ff03 | 1178 | if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) { |
1124fe6f | 1179 | log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id); |
05e343b7 LP |
1180 | return -EINVAL; |
1181 | } | |
1182 | ||
243b1432 LP |
1183 | return 0; |
1184 | } | |
1185 | ||
a40eb732 LP |
1186 | static int service_add_default_dependencies(Service *s) { |
1187 | int r; | |
1188 | ||
1189 | assert(s); | |
1190 | ||
1191 | /* Add a number of automatic dependencies useful for the | |
1192 | * majority of services. */ | |
1193 | ||
1194 | /* First, pull in base system */ | |
67445f4e | 1195 | if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) { |
a40eb732 LP |
1196 | |
1197 | if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0) | |
1198 | return r; | |
1199 | ||
67445f4e | 1200 | } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) { |
a40eb732 LP |
1201 | |
1202 | if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0) | |
1203 | return r; | |
1204 | } | |
1205 | ||
1206 | /* Second, activate normal shutdown */ | |
ead8e478 | 1207 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
a40eb732 LP |
1208 | } |
1209 | ||
4dfc092a LP |
1210 | static void service_fix_output(Service *s) { |
1211 | assert(s); | |
1212 | ||
1213 | /* If nothing has been explicitly configured, patch default | |
1214 | * output in. If input is socket/tty we avoid this however, | |
1215 | * since in that case we want output to default to the same | |
1216 | * place as we read input from. */ | |
1217 | ||
1218 | if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && | |
1219 | s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
1220 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 1221 | s->exec_context.std_error = UNIT(s)->manager->default_std_error; |
4dfc092a LP |
1222 | |
1223 | if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && | |
1224 | s->exec_context.std_input == EXEC_INPUT_NULL) | |
1124fe6f | 1225 | s->exec_context.std_output = UNIT(s)->manager->default_std_output; |
4dfc092a LP |
1226 | } |
1227 | ||
e537352b LP |
1228 | static int service_load(Unit *u) { |
1229 | int r; | |
1230 | Service *s = SERVICE(u); | |
1231 | ||
1232 | assert(s); | |
1e2e8133 | 1233 | |
5cb5a6ff | 1234 | /* Load a .service file */ |
e537352b | 1235 | if ((r = unit_load_fragment(u)) < 0) |
5cb5a6ff LP |
1236 | return r; |
1237 | ||
07459bb6 | 1238 | #ifdef HAVE_SYSV_COMPAT |
bd77d0fc | 1239 | /* Load a classic init script as a fallback, if we couldn't find anything */ |
ac155bb8 | 1240 | if (u->load_state == UNIT_STUB) |
e537352b | 1241 | if ((r = service_load_sysv(s)) < 0) |
23a177ef | 1242 | return r; |
07459bb6 | 1243 | #endif |
d46de8a1 | 1244 | |
23a177ef | 1245 | /* Still nothing found? Then let's give up */ |
ac155bb8 | 1246 | if (u->load_state == UNIT_STUB) |
23a177ef | 1247 | return -ENOENT; |
034c6ed7 | 1248 | |
23a177ef LP |
1249 | /* We were able to load something, then let's add in the |
1250 | * dropin directories. */ | |
1251 | if ((r = unit_load_dropin(unit_follow_merge(u))) < 0) | |
8e274523 | 1252 | return r; |
23a177ef LP |
1253 | |
1254 | /* This is a new unit? Then let's add in some extras */ | |
ac155bb8 | 1255 | if (u->load_state == UNIT_LOADED) { |
0b86feac LP |
1256 | if (s->type == _SERVICE_TYPE_INVALID) |
1257 | s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE; | |
1258 | ||
d568a335 MS |
1259 | /* Oneshot services have disabled start timeout by default */ |
1260 | if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined) | |
1261 | s->timeout_start_usec = 0; | |
98709151 | 1262 | |
4e2b0f9b LP |
1263 | service_fix_output(s); |
1264 | ||
23a177ef LP |
1265 | if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0) |
1266 | return r; | |
1267 | ||
d686d8a9 | 1268 | if ((r = unit_add_default_cgroups(u)) < 0) |
23a177ef LP |
1269 | return r; |
1270 | ||
07459bb6 | 1271 | #ifdef HAVE_SYSV_COMPAT |
56d748b4 | 1272 | if ((r = sysv_fix_order(s)) < 0) |
23a177ef | 1273 | return r; |
07459bb6 | 1274 | #endif |
05e343b7 | 1275 | |
9fff8a1f LP |
1276 | if ((r = fsck_fix_order(s)) < 0) |
1277 | return r; | |
1278 | ||
ee0dd802 | 1279 | if (s->bus_name) |
05e343b7 | 1280 | if ((r = unit_watch_bus_name(u, s->bus_name)) < 0) |
a40eb732 | 1281 | return r; |
c952c6ec LP |
1282 | |
1283 | if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) | |
1284 | s->notify_access = NOTIFY_MAIN; | |
a40eb732 | 1285 | |
02c4ef9c LP |
1286 | if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) |
1287 | s->notify_access = NOTIFY_MAIN; | |
1288 | ||
a40eb732 | 1289 | if (s->type == SERVICE_DBUS || s->bus_name) |
177b3ffe | 1290 | if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0) |
a40eb732 LP |
1291 | return r; |
1292 | ||
1124fe6f | 1293 | if (UNIT(s)->default_dependencies) |
a40eb732 LP |
1294 | if ((r = service_add_default_dependencies(s)) < 0) |
1295 | return r; | |
e06c73cc | 1296 | |
cba6e062 | 1297 | r = unit_exec_context_defaults(u, &s->exec_context); |
e06c73cc LP |
1298 | if (r < 0) |
1299 | return r; | |
8e274523 LP |
1300 | } |
1301 | ||
243b1432 | 1302 | return service_verify(s); |
034c6ed7 LP |
1303 | } |
1304 | ||
87f0e418 | 1305 | static void service_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 1306 | |
5cb5a6ff | 1307 | ServiceExecCommand c; |
87f0e418 | 1308 | Service *s = SERVICE(u); |
47be870b LP |
1309 | const char *prefix2; |
1310 | char *p2; | |
5cb5a6ff LP |
1311 | |
1312 | assert(s); | |
1313 | ||
47be870b LP |
1314 | p2 = strappend(prefix, "\t"); |
1315 | prefix2 = p2 ? p2 : prefix; | |
44d8db9e | 1316 | |
5cb5a6ff | 1317 | fprintf(f, |
81a2b7ce | 1318 | "%sService State: %s\n" |
f42806df LP |
1319 | "%sResult: %s\n" |
1320 | "%sReload Result: %s\n" | |
81a2b7ce | 1321 | "%sPermissionsStartOnly: %s\n" |
8e274523 | 1322 | "%sRootDirectoryStartOnly: %s\n" |
02ee865a | 1323 | "%sRemainAfterExit: %s\n" |
3185a36b | 1324 | "%sGuessMainPID: %s\n" |
c952c6ec | 1325 | "%sType: %s\n" |
2cf3143a | 1326 | "%sRestart: %s\n" |
c952c6ec | 1327 | "%sNotifyAccess: %s\n", |
81a2b7ce | 1328 | prefix, service_state_to_string(s->state), |
f42806df LP |
1329 | prefix, service_result_to_string(s->result), |
1330 | prefix, service_result_to_string(s->reload_result), | |
81a2b7ce | 1331 | prefix, yes_no(s->permissions_start_only), |
8e274523 | 1332 | prefix, yes_no(s->root_directory_start_only), |
02ee865a | 1333 | prefix, yes_no(s->remain_after_exit), |
3185a36b | 1334 | prefix, yes_no(s->guess_main_pid), |
c952c6ec | 1335 | prefix, service_type_to_string(s->type), |
2cf3143a | 1336 | prefix, service_restart_to_string(s->restart), |
c952c6ec | 1337 | prefix, notify_access_to_string(s->notify_access)); |
5cb5a6ff | 1338 | |
70123e68 LP |
1339 | if (s->control_pid > 0) |
1340 | fprintf(f, | |
bb00e604 LP |
1341 | "%sControl PID: %lu\n", |
1342 | prefix, (unsigned long) s->control_pid); | |
70123e68 LP |
1343 | |
1344 | if (s->main_pid > 0) | |
1345 | fprintf(f, | |
6dfa5494 LP |
1346 | "%sMain PID: %lu\n" |
1347 | "%sMain PID Known: %s\n" | |
1348 | "%sMain PID Alien: %s\n", | |
1349 | prefix, (unsigned long) s->main_pid, | |
1350 | prefix, yes_no(s->main_pid_known), | |
1351 | prefix, yes_no(s->main_pid_alien)); | |
70123e68 | 1352 | |
034c6ed7 LP |
1353 | if (s->pid_file) |
1354 | fprintf(f, | |
1355 | "%sPIDFile: %s\n", | |
1356 | prefix, s->pid_file); | |
1357 | ||
05e343b7 LP |
1358 | if (s->bus_name) |
1359 | fprintf(f, | |
1360 | "%sBusName: %s\n" | |
1361 | "%sBus Name Good: %s\n", | |
1362 | prefix, s->bus_name, | |
1363 | prefix, yes_no(s->bus_name_good)); | |
1364 | ||
4819ff03 | 1365 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff LP |
1366 | exec_context_dump(&s->exec_context, f, prefix); |
1367 | ||
e537352b | 1368 | for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) { |
5cb5a6ff | 1369 | |
44d8db9e LP |
1370 | if (!s->exec_command[c]) |
1371 | continue; | |
1372 | ||
40d50879 | 1373 | fprintf(f, "%s-> %s:\n", |
94f04347 | 1374 | prefix, service_exec_command_to_string(c)); |
44d8db9e LP |
1375 | |
1376 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 1377 | } |
44d8db9e | 1378 | |
07459bb6 | 1379 | #ifdef HAVE_SYSV_COMPAT |
1b64d026 | 1380 | if (s->is_sysv) |
2c4104f0 | 1381 | fprintf(f, |
9fff8a1f LP |
1382 | "%sSysV Init Script has LSB Header: %s\n" |
1383 | "%sSysVEnabled: %s\n", | |
9fff8a1f LP |
1384 | prefix, yes_no(s->sysv_has_lsb), |
1385 | prefix, yes_no(s->sysv_enabled)); | |
2c4104f0 LP |
1386 | |
1387 | if (s->sysv_start_priority >= 0) | |
1388 | fprintf(f, | |
9fff8a1f LP |
1389 | "%sSysVStartPriority: %i\n", |
1390 | prefix, s->sysv_start_priority); | |
2c4104f0 | 1391 | |
8309400a LP |
1392 | if (s->sysv_runlevels) |
1393 | fprintf(f, "%sSysVRunLevels: %s\n", | |
1394 | prefix, s->sysv_runlevels); | |
07459bb6 | 1395 | #endif |
23a177ef | 1396 | |
9fff8a1f LP |
1397 | if (s->fsck_passno > 0) |
1398 | fprintf(f, | |
1399 | "%sFsckPassNo: %i\n", | |
1400 | prefix, s->fsck_passno); | |
1401 | ||
8c47c732 LP |
1402 | if (s->status_text) |
1403 | fprintf(f, "%sStatus Text: %s\n", | |
1404 | prefix, s->status_text); | |
1405 | ||
47be870b | 1406 | free(p2); |
5cb5a6ff LP |
1407 | } |
1408 | ||
c5419d42 | 1409 | static int service_load_pid_file(Service *s, bool may_warn) { |
034c6ed7 | 1410 | char *k; |
034c6ed7 | 1411 | int r; |
5925dd3c | 1412 | pid_t pid; |
034c6ed7 LP |
1413 | |
1414 | assert(s); | |
1415 | ||
034c6ed7 | 1416 | if (!s->pid_file) |
13230d5d | 1417 | return -ENOENT; |
034c6ed7 | 1418 | |
5375410b | 1419 | if ((r = read_one_line_file(s->pid_file, &k)) < 0) { |
c5419d42 | 1420 | if (may_warn) |
3a111838 MS |
1421 | log_info("PID file %s not readable (yet?) after %s.", |
1422 | s->pid_file, service_state_to_string(s->state)); | |
034c6ed7 | 1423 | return r; |
5375410b | 1424 | } |
034c6ed7 | 1425 | |
5925dd3c LP |
1426 | r = parse_pid(k, &pid); |
1427 | free(k); | |
034c6ed7 | 1428 | |
5925dd3c LP |
1429 | if (r < 0) |
1430 | return r; | |
406eaf93 | 1431 | |
5925dd3c | 1432 | if (kill(pid, 0) < 0 && errno != EPERM) { |
c5419d42 | 1433 | if (may_warn) |
3a111838 MS |
1434 | log_info("PID %lu read from file %s does not exist.", |
1435 | (unsigned long) pid, s->pid_file); | |
b8c597d5 LP |
1436 | return -ESRCH; |
1437 | } | |
1438 | ||
db01f8b3 MS |
1439 | if (s->main_pid_known) { |
1440 | if (pid == s->main_pid) | |
1441 | return 0; | |
1442 | ||
1443 | log_debug("Main PID changing: %lu -> %lu", | |
1444 | (unsigned long) s->main_pid, (unsigned long) pid); | |
1445 | service_unwatch_main_pid(s); | |
1446 | s->main_pid_known = false; | |
3a111838 MS |
1447 | } else |
1448 | log_debug("Main PID loaded: %lu", (unsigned long) pid); | |
db01f8b3 | 1449 | |
5925dd3c | 1450 | if ((r = service_set_main_pid(s, pid)) < 0) |
16f6025e LP |
1451 | return r; |
1452 | ||
5925dd3c LP |
1453 | if ((r = unit_watch_pid(UNIT(s), pid)) < 0) |
1454 | /* FIXME: we need to do something here */ | |
1455 | return r; | |
034c6ed7 LP |
1456 | |
1457 | return 0; | |
1458 | } | |
1459 | ||
4fbf50b3 LP |
1460 | static int service_search_main_pid(Service *s) { |
1461 | pid_t pid; | |
1462 | int r; | |
1463 | ||
1464 | assert(s); | |
1465 | ||
3185a36b LP |
1466 | /* If we know it anyway, don't ever fallback to unreliable |
1467 | * heuristics */ | |
4fbf50b3 LP |
1468 | if (s->main_pid_known) |
1469 | return 0; | |
1470 | ||
3185a36b LP |
1471 | if (!s->guess_main_pid) |
1472 | return 0; | |
1473 | ||
4fbf50b3 LP |
1474 | assert(s->main_pid <= 0); |
1475 | ||
1124fe6f | 1476 | if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0) |
4fbf50b3 LP |
1477 | return -ENOENT; |
1478 | ||
3a111838 | 1479 | log_debug("Main PID guessed: %lu", (unsigned long) pid); |
4fbf50b3 LP |
1480 | if ((r = service_set_main_pid(s, pid)) < 0) |
1481 | return r; | |
1482 | ||
1483 | if ((r = unit_watch_pid(UNIT(s), pid)) < 0) | |
1484 | /* FIXME: we need to do something here */ | |
1485 | return r; | |
1486 | ||
1487 | return 0; | |
1488 | } | |
1489 | ||
6bda96a0 | 1490 | static void service_notify_sockets_dead(Service *s, bool failed_permanent) { |
ceee3d82 | 1491 | Iterator i; |
57020a3a | 1492 | Unit *u; |
3e33402a LP |
1493 | |
1494 | assert(s); | |
1495 | ||
f976f3f6 LP |
1496 | /* Notifies all our sockets when we die */ |
1497 | ||
6cf6bbc2 | 1498 | if (s->socket_fd >= 0) |
57020a3a | 1499 | return; |
3e33402a | 1500 | |
1124fe6f | 1501 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) |
ac155bb8 | 1502 | if (u->type == UNIT_SOCKET) |
6bda96a0 | 1503 | socket_notify_service_dead(SOCKET(u), failed_permanent); |
3e33402a | 1504 | |
57020a3a | 1505 | return; |
ceee3d82 LP |
1506 | } |
1507 | ||
034c6ed7 LP |
1508 | static void service_set_state(Service *s, ServiceState state) { |
1509 | ServiceState old_state; | |
e056b01d | 1510 | const UnitActiveState *table; |
5cb5a6ff LP |
1511 | assert(s); |
1512 | ||
e056b01d LP |
1513 | table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
1514 | ||
034c6ed7 | 1515 | old_state = s->state; |
5cb5a6ff | 1516 | s->state = state; |
034c6ed7 | 1517 | |
3a111838 MS |
1518 | service_unwatch_pid_file(s); |
1519 | ||
034c6ed7 LP |
1520 | if (state != SERVICE_START_PRE && |
1521 | state != SERVICE_START && | |
1522 | state != SERVICE_START_POST && | |
1523 | state != SERVICE_RELOAD && | |
1524 | state != SERVICE_STOP && | |
1525 | state != SERVICE_STOP_SIGTERM && | |
1526 | state != SERVICE_STOP_SIGKILL && | |
1527 | state != SERVICE_STOP_POST && | |
1528 | state != SERVICE_FINAL_SIGTERM && | |
1529 | state != SERVICE_FINAL_SIGKILL && | |
1530 | state != SERVICE_AUTO_RESTART) | |
acbb0225 | 1531 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 | 1532 | |
7d55e835 LP |
1533 | if (state != SERVICE_START && |
1534 | state != SERVICE_START_POST && | |
034c6ed7 LP |
1535 | state != SERVICE_RUNNING && |
1536 | state != SERVICE_RELOAD && | |
1537 | state != SERVICE_STOP && | |
1538 | state != SERVICE_STOP_SIGTERM && | |
867b3b7d | 1539 | state != SERVICE_STOP_SIGKILL) { |
5e94833f | 1540 | service_unwatch_main_pid(s); |
867b3b7d LP |
1541 | s->main_command = NULL; |
1542 | } | |
034c6ed7 LP |
1543 | |
1544 | if (state != SERVICE_START_PRE && | |
1545 | state != SERVICE_START && | |
1546 | state != SERVICE_START_POST && | |
1547 | state != SERVICE_RELOAD && | |
1548 | state != SERVICE_STOP && | |
1549 | state != SERVICE_STOP_SIGTERM && | |
1550 | state != SERVICE_STOP_SIGKILL && | |
1551 | state != SERVICE_STOP_POST && | |
1552 | state != SERVICE_FINAL_SIGTERM && | |
e537352b | 1553 | state != SERVICE_FINAL_SIGKILL) { |
5e94833f | 1554 | service_unwatch_control_pid(s); |
034c6ed7 | 1555 | s->control_command = NULL; |
a16e1123 | 1556 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; |
e537352b | 1557 | } |
034c6ed7 | 1558 | |
ceee3d82 LP |
1559 | if (state == SERVICE_DEAD || |
1560 | state == SERVICE_STOP || | |
1561 | state == SERVICE_STOP_SIGTERM || | |
1562 | state == SERVICE_STOP_SIGKILL || | |
1563 | state == SERVICE_STOP_POST || | |
1564 | state == SERVICE_FINAL_SIGTERM || | |
1565 | state == SERVICE_FINAL_SIGKILL || | |
fdf20a31 | 1566 | state == SERVICE_FAILED || |
ceee3d82 | 1567 | state == SERVICE_AUTO_RESTART) |
c2f34808 | 1568 | service_notify_sockets_dead(s, false); |
ceee3d82 | 1569 | |
4f2d528d LP |
1570 | if (state != SERVICE_START_PRE && |
1571 | state != SERVICE_START && | |
6cf6bbc2 LP |
1572 | state != SERVICE_START_POST && |
1573 | state != SERVICE_RUNNING && | |
1574 | state != SERVICE_RELOAD && | |
1575 | state != SERVICE_STOP && | |
1576 | state != SERVICE_STOP_SIGTERM && | |
1577 | state != SERVICE_STOP_SIGKILL && | |
1578 | state != SERVICE_STOP_POST && | |
1579 | state != SERVICE_FINAL_SIGTERM && | |
1580 | state != SERVICE_FINAL_SIGKILL && | |
1124fe6f | 1581 | !(state == SERVICE_DEAD && UNIT(s)->job)) { |
4f2d528d | 1582 | service_close_socket_fd(s); |
6cf6bbc2 LP |
1583 | service_connection_unref(s); |
1584 | } | |
4f2d528d | 1585 | |
a6927d7f MO |
1586 | if (state == SERVICE_STOP) |
1587 | service_stop_watchdog(s); | |
1588 | ||
f6023656 LP |
1589 | /* For the inactive states unit_notify() will trim the cgroup, |
1590 | * but for exit we have to do that ourselves... */ | |
1124fe6f MS |
1591 | if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0) |
1592 | cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true); | |
f6023656 | 1593 | |
e537352b | 1594 | if (old_state != state) |
1124fe6f | 1595 | log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state)); |
acbb0225 | 1596 | |
e056b01d | 1597 | unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); |
f42806df | 1598 | s->reload_result = SERVICE_SUCCESS; |
034c6ed7 LP |
1599 | } |
1600 | ||
a16e1123 LP |
1601 | static int service_coldplug(Unit *u) { |
1602 | Service *s = SERVICE(u); | |
1603 | int r; | |
1604 | ||
1605 | assert(s); | |
1606 | assert(s->state == SERVICE_DEAD); | |
1607 | ||
1608 | if (s->deserialized_state != s->state) { | |
1609 | ||
1610 | if (s->deserialized_state == SERVICE_START_PRE || | |
1611 | s->deserialized_state == SERVICE_START || | |
1612 | s->deserialized_state == SERVICE_START_POST || | |
1613 | s->deserialized_state == SERVICE_RELOAD || | |
1614 | s->deserialized_state == SERVICE_STOP || | |
1615 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1616 | s->deserialized_state == SERVICE_STOP_SIGKILL || | |
1617 | s->deserialized_state == SERVICE_STOP_POST || | |
1618 | s->deserialized_state == SERVICE_FINAL_SIGTERM || | |
1619 | s->deserialized_state == SERVICE_FINAL_SIGKILL || | |
e558336f | 1620 | s->deserialized_state == SERVICE_AUTO_RESTART) { |
d568a335 | 1621 | if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) { |
e558336f LP |
1622 | usec_t k; |
1623 | ||
d568a335 | 1624 | k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec; |
e558336f LP |
1625 | |
1626 | if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0) | |
1627 | return r; | |
1628 | } | |
1629 | } | |
a16e1123 LP |
1630 | |
1631 | if ((s->deserialized_state == SERVICE_START && | |
1632 | (s->type == SERVICE_FORKING || | |
8c47c732 | 1633 | s->type == SERVICE_DBUS || |
34e9ba66 | 1634 | s->type == SERVICE_ONESHOT || |
8c47c732 | 1635 | s->type == SERVICE_NOTIFY)) || |
a16e1123 LP |
1636 | s->deserialized_state == SERVICE_START_POST || |
1637 | s->deserialized_state == SERVICE_RUNNING || | |
1638 | s->deserialized_state == SERVICE_RELOAD || | |
1639 | s->deserialized_state == SERVICE_STOP || | |
1640 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1641 | s->deserialized_state == SERVICE_STOP_SIGKILL) | |
1642 | if (s->main_pid > 0) | |
1643 | if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0) | |
1644 | return r; | |
1645 | ||
1646 | if (s->deserialized_state == SERVICE_START_PRE || | |
1647 | s->deserialized_state == SERVICE_START || | |
1648 | s->deserialized_state == SERVICE_START_POST || | |
1649 | s->deserialized_state == SERVICE_RELOAD || | |
1650 | s->deserialized_state == SERVICE_STOP || | |
1651 | s->deserialized_state == SERVICE_STOP_SIGTERM || | |
1652 | s->deserialized_state == SERVICE_STOP_SIGKILL || | |
1653 | s->deserialized_state == SERVICE_STOP_POST || | |
1654 | s->deserialized_state == SERVICE_FINAL_SIGTERM || | |
1655 | s->deserialized_state == SERVICE_FINAL_SIGKILL) | |
1656 | if (s->control_pid > 0) | |
1657 | if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0) | |
1658 | return r; | |
1659 | ||
bb242b7b MO |
1660 | if (s->deserialized_state == SERVICE_START_POST || |
1661 | s->deserialized_state == SERVICE_RUNNING) | |
1662 | service_handle_watchdog(s); | |
1663 | ||
a16e1123 LP |
1664 | service_set_state(s, s->deserialized_state); |
1665 | } | |
a16e1123 LP |
1666 | return 0; |
1667 | } | |
1668 | ||
44d8db9e LP |
1669 | static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { |
1670 | Iterator i; | |
1671 | int r; | |
1672 | int *rfds = NULL; | |
1673 | unsigned rn_fds = 0; | |
57020a3a | 1674 | Unit *u; |
44d8db9e LP |
1675 | |
1676 | assert(s); | |
1677 | assert(fds); | |
1678 | assert(n_fds); | |
1679 | ||
6cf6bbc2 LP |
1680 | if (s->socket_fd >= 0) |
1681 | return 0; | |
1682 | ||
1124fe6f | 1683 | SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) { |
44d8db9e LP |
1684 | int *cfds; |
1685 | unsigned cn_fds; | |
57020a3a LP |
1686 | Socket *sock; |
1687 | ||
ac155bb8 | 1688 | if (u->type != UNIT_SOCKET) |
57020a3a LP |
1689 | continue; |
1690 | ||
1691 | sock = SOCKET(u); | |
44d8db9e | 1692 | |
47be870b | 1693 | if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0) |
44d8db9e LP |
1694 | goto fail; |
1695 | ||
1696 | if (!cfds) | |
1697 | continue; | |
1698 | ||
1699 | if (!rfds) { | |
1700 | rfds = cfds; | |
1701 | rn_fds = cn_fds; | |
1702 | } else { | |
1703 | int *t; | |
1704 | ||
1705 | if (!(t = new(int, rn_fds+cn_fds))) { | |
1706 | free(cfds); | |
1707 | r = -ENOMEM; | |
1708 | goto fail; | |
1709 | } | |
1710 | ||
9c1b183c LP |
1711 | memcpy(t, rfds, rn_fds * sizeof(int)); |
1712 | memcpy(t+rn_fds, cfds, cn_fds * sizeof(int)); | |
44d8db9e LP |
1713 | free(rfds); |
1714 | free(cfds); | |
1715 | ||
1716 | rfds = t; | |
1717 | rn_fds = rn_fds+cn_fds; | |
1718 | } | |
1719 | } | |
1720 | ||
1721 | *fds = rfds; | |
1722 | *n_fds = rn_fds; | |
3e33402a | 1723 | |
44d8db9e LP |
1724 | return 0; |
1725 | ||
1726 | fail: | |
1727 | free(rfds); | |
3e33402a | 1728 | |
44d8db9e LP |
1729 | return r; |
1730 | } | |
1731 | ||
81a2b7ce LP |
1732 | static int service_spawn( |
1733 | Service *s, | |
1734 | ExecCommand *c, | |
1735 | bool timeout, | |
1736 | bool pass_fds, | |
1737 | bool apply_permissions, | |
1738 | bool apply_chroot, | |
1e3ad081 | 1739 | bool apply_tty_stdin, |
c952c6ec | 1740 | bool set_notify_socket, |
ecedd90f | 1741 | bool is_control, |
81a2b7ce LP |
1742 | pid_t *_pid) { |
1743 | ||
034c6ed7 LP |
1744 | pid_t pid; |
1745 | int r; | |
6cf6bbc2 | 1746 | int *fds = NULL, *fdsbuf = NULL; |
2105e76a LP |
1747 | unsigned n_fds = 0, n_env = 0; |
1748 | char **argv = NULL, **final_env = NULL, **our_env = NULL; | |
034c6ed7 LP |
1749 | |
1750 | assert(s); | |
1751 | assert(c); | |
1752 | assert(_pid); | |
1753 | ||
6cf6bbc2 LP |
1754 | if (pass_fds || |
1755 | s->exec_context.std_input == EXEC_INPUT_SOCKET || | |
1756 | s->exec_context.std_output == EXEC_OUTPUT_SOCKET || | |
1757 | s->exec_context.std_error == EXEC_OUTPUT_SOCKET) { | |
1758 | ||
4f2d528d LP |
1759 | if (s->socket_fd >= 0) { |
1760 | fds = &s->socket_fd; | |
1761 | n_fds = 1; | |
6cf6bbc2 LP |
1762 | } else { |
1763 | if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0) | |
1764 | goto fail; | |
1765 | ||
1766 | fds = fdsbuf; | |
1767 | } | |
4f2d528d | 1768 | } |
44d8db9e | 1769 | |
d568a335 MS |
1770 | if (timeout && s->timeout_start_usec) { |
1771 | r = unit_watch_timer(UNIT(s), s->timeout_start_usec, &s->timer_watch); | |
1772 | if (r < 0) | |
034c6ed7 LP |
1773 | goto fail; |
1774 | } else | |
acbb0225 | 1775 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 | 1776 | |
9e2f7c11 LP |
1777 | if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) { |
1778 | r = -ENOMEM; | |
1779 | goto fail; | |
1780 | } | |
1781 | ||
9865f3b4 | 1782 | if (!(our_env = new0(char*, 4))) { |
2105e76a LP |
1783 | r = -ENOMEM; |
1784 | goto fail; | |
1785 | } | |
c952c6ec | 1786 | |
2105e76a | 1787 | if (set_notify_socket) |
1124fe6f | 1788 | if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) { |
c952c6ec LP |
1789 | r = -ENOMEM; |
1790 | goto fail; | |
1791 | } | |
1792 | ||
2105e76a LP |
1793 | if (s->main_pid > 0) |
1794 | if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) { | |
c952c6ec LP |
1795 | r = -ENOMEM; |
1796 | goto fail; | |
1797 | } | |
2105e76a | 1798 | |
6e0bcc98 MO |
1799 | if (s->watchdog_usec > 0) |
1800 | if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) { | |
1801 | r = -ENOMEM; | |
1802 | goto fail; | |
1803 | } | |
1804 | ||
2105e76a | 1805 | if (!(final_env = strv_env_merge(2, |
1124fe6f | 1806 | UNIT(s)->manager->environment, |
2105e76a LP |
1807 | our_env, |
1808 | NULL))) { | |
1809 | r = -ENOMEM; | |
1810 | goto fail; | |
1811 | } | |
c952c6ec | 1812 | |
9e2f7c11 LP |
1813 | r = exec_spawn(c, |
1814 | argv, | |
1815 | &s->exec_context, | |
1816 | fds, n_fds, | |
2105e76a | 1817 | final_env, |
9e2f7c11 LP |
1818 | apply_permissions, |
1819 | apply_chroot, | |
1e3ad081 | 1820 | apply_tty_stdin, |
1124fe6f MS |
1821 | UNIT(s)->manager->confirm_spawn, |
1822 | UNIT(s)->cgroup_bondings, | |
1823 | UNIT(s)->cgroup_attributes, | |
ecedd90f | 1824 | is_control ? "control" : NULL, |
62bca2c6 | 1825 | UNIT(s)->id, |
f2b68789 | 1826 | s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL, |
9e2f7c11 LP |
1827 | &pid); |
1828 | ||
9e2f7c11 | 1829 | if (r < 0) |
034c6ed7 LP |
1830 | goto fail; |
1831 | ||
4f2d528d | 1832 | |
87f0e418 | 1833 | if ((r = unit_watch_pid(UNIT(s), pid)) < 0) |
034c6ed7 LP |
1834 | /* FIXME: we need to do something here */ |
1835 | goto fail; | |
1836 | ||
2105e76a LP |
1837 | free(fdsbuf); |
1838 | strv_free(argv); | |
1839 | strv_free(our_env); | |
1840 | strv_free(final_env); | |
1841 | ||
034c6ed7 LP |
1842 | *_pid = pid; |
1843 | ||
5cb5a6ff | 1844 | return 0; |
034c6ed7 LP |
1845 | |
1846 | fail: | |
2105e76a | 1847 | free(fdsbuf); |
c952c6ec | 1848 | strv_free(argv); |
2105e76a LP |
1849 | strv_free(our_env); |
1850 | strv_free(final_env); | |
c952c6ec | 1851 | |
034c6ed7 | 1852 | if (timeout) |
acbb0225 | 1853 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
034c6ed7 LP |
1854 | |
1855 | return r; | |
1856 | } | |
1857 | ||
80876c20 LP |
1858 | static int main_pid_good(Service *s) { |
1859 | assert(s); | |
1860 | ||
1861 | /* Returns 0 if the pid is dead, 1 if it is good, -1 if we | |
1862 | * don't know */ | |
1863 | ||
1864 | /* If we know the pid file, then lets just check if it is | |
1865 | * still valid */ | |
6dfa5494 LP |
1866 | if (s->main_pid_known) { |
1867 | ||
1868 | /* If it's an alien child let's check if it is still | |
1869 | * alive ... */ | |
1870 | if (s->main_pid_alien) | |
1871 | return kill(s->main_pid, 0) >= 0 || errno != ESRCH; | |
1872 | ||
1873 | /* .. otherwise assume we'll get a SIGCHLD for it, | |
1874 | * which we really should wait for to collect exit | |
1875 | * status and code */ | |
80876c20 | 1876 | return s->main_pid > 0; |
6dfa5494 | 1877 | } |
80876c20 LP |
1878 | |
1879 | /* We don't know the pid */ | |
1880 | return -EAGAIN; | |
1881 | } | |
1882 | ||
1883 | static int control_pid_good(Service *s) { | |
1884 | assert(s); | |
1885 | ||
1886 | return s->control_pid > 0; | |
1887 | } | |
1888 | ||
1889 | static int cgroup_good(Service *s) { | |
1890 | int r; | |
1891 | ||
1892 | assert(s); | |
1893 | ||
1124fe6f | 1894 | if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0) |
80876c20 LP |
1895 | return r; |
1896 | ||
1897 | return !r; | |
1898 | } | |
1899 | ||
f42806df | 1900 | static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) { |
034c6ed7 LP |
1901 | int r; |
1902 | assert(s); | |
1903 | ||
f42806df LP |
1904 | if (f != SERVICE_SUCCESS) |
1905 | s->result = f; | |
034c6ed7 | 1906 | |
0c7f15b3 MS |
1907 | service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD); |
1908 | ||
034c6ed7 | 1909 | if (allow_restart && |
47342320 | 1910 | !s->forbid_restart && |
034c6ed7 | 1911 | (s->restart == SERVICE_RESTART_ALWAYS || |
f42806df LP |
1912 | (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) || |
1913 | (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) || | |
1914 | (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL || | |
96342de6 LN |
1915 | s->result == SERVICE_FAILURE_CORE_DUMP))) && |
1916 | (s->result != SERVICE_FAILURE_EXIT_CODE || | |
1917 | !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) && | |
1918 | (s->result != SERVICE_FAILURE_SIGNAL || | |
1919 | !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status))) | |
1920 | ) { | |
034c6ed7 | 1921 | |
f42806df LP |
1922 | r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch); |
1923 | if (r < 0) | |
034c6ed7 LP |
1924 | goto fail; |
1925 | ||
1926 | service_set_state(s, SERVICE_AUTO_RESTART); | |
0c7f15b3 | 1927 | } |
034c6ed7 | 1928 | |
47342320 LP |
1929 | s->forbid_restart = false; |
1930 | ||
034c6ed7 LP |
1931 | return; |
1932 | ||
1933 | fail: | |
1124fe6f | 1934 | log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1935 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
034c6ed7 LP |
1936 | } |
1937 | ||
f42806df | 1938 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); |
034c6ed7 | 1939 | |
f42806df | 1940 | static void service_enter_stop_post(Service *s, ServiceResult f) { |
034c6ed7 LP |
1941 | int r; |
1942 | assert(s); | |
1943 | ||
f42806df LP |
1944 | if (f != SERVICE_SUCCESS) |
1945 | s->result = f; | |
034c6ed7 | 1946 | |
5e94833f LP |
1947 | service_unwatch_control_pid(s); |
1948 | ||
80876c20 | 1949 | if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) { |
867b3b7d LP |
1950 | s->control_command_id = SERVICE_EXEC_STOP_POST; |
1951 | ||
ecedd90f LP |
1952 | r = service_spawn(s, |
1953 | s->control_command, | |
1954 | true, | |
1955 | false, | |
1956 | !s->permissions_start_only, | |
1957 | !s->root_directory_start_only, | |
1958 | true, | |
1959 | false, | |
1960 | true, | |
1961 | &s->control_pid); | |
1962 | if (r < 0) | |
034c6ed7 LP |
1963 | goto fail; |
1964 | ||
d6ea93e3 | 1965 | |
80876c20 LP |
1966 | service_set_state(s, SERVICE_STOP_POST); |
1967 | } else | |
f42806df | 1968 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
1969 | |
1970 | return; | |
1971 | ||
1972 | fail: | |
1124fe6f | 1973 | log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 1974 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
1975 | } |
1976 | ||
f42806df | 1977 | static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { |
034c6ed7 | 1978 | int r; |
ca949c9d LP |
1979 | Set *pid_set = NULL; |
1980 | bool wait_for_exit = false; | |
034c6ed7 LP |
1981 | |
1982 | assert(s); | |
1983 | ||
f42806df LP |
1984 | if (f != SERVICE_SUCCESS) |
1985 | s->result = f; | |
034c6ed7 | 1986 | |
4819ff03 LP |
1987 | if (s->kill_context.kill_mode != KILL_NONE) { |
1988 | int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->kill_context.kill_signal : SIGKILL; | |
034c6ed7 | 1989 | |
ca949c9d | 1990 | if (s->main_pid > 0) { |
cd25cce9 | 1991 | if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH) |
ca949c9d LP |
1992 | log_warning("Failed to kill main process %li: %m", (long) s->main_pid); |
1993 | else | |
6dfa5494 | 1994 | wait_for_exit = !s->main_pid_alien; |
034c6ed7 LP |
1995 | } |
1996 | ||
ca949c9d | 1997 | if (s->control_pid > 0) { |
cd25cce9 | 1998 | if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH) |
ca949c9d LP |
1999 | log_warning("Failed to kill control process %li: %m", (long) s->control_pid); |
2000 | else | |
2001 | wait_for_exit = true; | |
2002 | } | |
50159e6a | 2003 | |
4819ff03 | 2004 | if (s->kill_context.kill_mode == KILL_CONTROL_GROUP) { |
50159e6a | 2005 | |
4819ff03 LP |
2006 | pid_set = set_new(trivial_hash_func, trivial_compare_func); |
2007 | if (!pid_set) { | |
ca949c9d | 2008 | r = -ENOMEM; |
50159e6a | 2009 | goto fail; |
ca949c9d LP |
2010 | } |
2011 | ||
2012 | /* Exclude the main/control pids from being killed via the cgroup */ | |
2013 | if (s->main_pid > 0) | |
2014 | if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) | |
2015 | goto fail; | |
2016 | ||
2017 | if (s->control_pid > 0) | |
2018 | if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) | |
2019 | goto fail; | |
2020 | ||
88f3e0c9 | 2021 | r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL); |
ecedd90f | 2022 | if (r < 0) { |
ca949c9d LP |
2023 | if (r != -EAGAIN && r != -ESRCH && r != -ENOENT) |
2024 | log_warning("Failed to kill control group: %s", strerror(-r)); | |
f5a50114 | 2025 | } else if (r > 0) |
ca949c9d LP |
2026 | wait_for_exit = true; |
2027 | ||
2028 | set_free(pid_set); | |
da19d5c1 | 2029 | pid_set = NULL; |
50159e6a | 2030 | } |
d6ea93e3 | 2031 | } |
034c6ed7 | 2032 | |
ca949c9d | 2033 | if (wait_for_exit) { |
d568a335 MS |
2034 | if (s->timeout_stop_usec > 0) { |
2035 | r = unit_watch_timer(UNIT(s), s->timeout_stop_usec, &s->timer_watch); | |
2036 | if (r < 0) | |
e558336f | 2037 | goto fail; |
d568a335 | 2038 | } |
d6ea93e3 | 2039 | |
80876c20 LP |
2040 | service_set_state(s, state); |
2041 | } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) | |
f42806df | 2042 | service_enter_stop_post(s, SERVICE_SUCCESS); |
80876c20 | 2043 | else |
f42806df | 2044 | service_enter_dead(s, SERVICE_SUCCESS, true); |
034c6ed7 LP |
2045 | |
2046 | return; | |
2047 | ||
2048 | fail: | |
1124fe6f | 2049 | log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r)); |
034c6ed7 | 2050 | |
80876c20 | 2051 | if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) |
f42806df | 2052 | service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2053 | else |
f42806df | 2054 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
ca949c9d LP |
2055 | |
2056 | if (pid_set) | |
2057 | set_free(pid_set); | |
034c6ed7 LP |
2058 | } |
2059 | ||
f42806df | 2060 | static void service_enter_stop(Service *s, ServiceResult f) { |
034c6ed7 | 2061 | int r; |
5925dd3c | 2062 | |
034c6ed7 LP |
2063 | assert(s); |
2064 | ||
f42806df LP |
2065 | if (f != SERVICE_SUCCESS) |
2066 | s->result = f; | |
034c6ed7 | 2067 | |
5e94833f LP |
2068 | service_unwatch_control_pid(s); |
2069 | ||
80876c20 | 2070 | if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) { |
867b3b7d LP |
2071 | s->control_command_id = SERVICE_EXEC_STOP; |
2072 | ||
ecedd90f LP |
2073 | r = service_spawn(s, |
2074 | s->control_command, | |
2075 | true, | |
2076 | false, | |
2077 | !s->permissions_start_only, | |
2078 | !s->root_directory_start_only, | |
2079 | false, | |
2080 | false, | |
2081 | true, | |
2082 | &s->control_pid); | |
2083 | if (r < 0) | |
034c6ed7 LP |
2084 | goto fail; |
2085 | ||
80876c20 LP |
2086 | service_set_state(s, SERVICE_STOP); |
2087 | } else | |
f42806df | 2088 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
034c6ed7 LP |
2089 | |
2090 | return; | |
2091 | ||
2092 | fail: | |
1124fe6f | 2093 | log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 2094 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2095 | } |
2096 | ||
f42806df | 2097 | static void service_enter_running(Service *s, ServiceResult f) { |
4eab639f | 2098 | int main_pid_ok, cgroup_ok; |
80876c20 LP |
2099 | assert(s); |
2100 | ||
f42806df LP |
2101 | if (f != SERVICE_SUCCESS) |
2102 | s->result = f; | |
80876c20 | 2103 | |
4eab639f LP |
2104 | main_pid_ok = main_pid_good(s); |
2105 | cgroup_ok = cgroup_good(s); | |
2106 | ||
2107 | if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) && | |
05e343b7 | 2108 | (s->bus_name_good || s->type != SERVICE_DBUS)) |
80876c20 | 2109 | service_set_state(s, SERVICE_RUNNING); |
02ee865a | 2110 | else if (s->remain_after_exit) |
80876c20 LP |
2111 | service_set_state(s, SERVICE_EXITED); |
2112 | else | |
f42806df | 2113 | service_enter_stop(s, SERVICE_SUCCESS); |
80876c20 LP |
2114 | } |
2115 | ||
034c6ed7 LP |
2116 | static void service_enter_start_post(Service *s) { |
2117 | int r; | |
2118 | assert(s); | |
2119 | ||
5e94833f LP |
2120 | service_unwatch_control_pid(s); |
2121 | ||
bb242b7b MO |
2122 | if (s->watchdog_usec > 0) |
2123 | service_reset_watchdog(s); | |
2124 | ||
80876c20 | 2125 | if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) { |
867b3b7d LP |
2126 | s->control_command_id = SERVICE_EXEC_START_POST; |
2127 | ||
ecedd90f LP |
2128 | r = service_spawn(s, |
2129 | s->control_command, | |
2130 | true, | |
2131 | false, | |
2132 | !s->permissions_start_only, | |
2133 | !s->root_directory_start_only, | |
2134 | false, | |
2135 | false, | |
2136 | true, | |
2137 | &s->control_pid); | |
2138 | if (r < 0) | |
034c6ed7 LP |
2139 | goto fail; |
2140 | ||
80876c20 LP |
2141 | service_set_state(s, SERVICE_START_POST); |
2142 | } else | |
f42806df | 2143 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2144 | |
2145 | return; | |
2146 | ||
2147 | fail: | |
1124fe6f | 2148 | log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 2149 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2150 | } |
2151 | ||
2152 | static void service_enter_start(Service *s) { | |
2153 | pid_t pid; | |
2154 | int r; | |
867b3b7d | 2155 | ExecCommand *c; |
034c6ed7 LP |
2156 | |
2157 | assert(s); | |
2158 | ||
2159 | assert(s->exec_command[SERVICE_EXEC_START]); | |
34e9ba66 | 2160 | assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT); |
034c6ed7 | 2161 | |
80876c20 LP |
2162 | if (s->type == SERVICE_FORKING) |
2163 | service_unwatch_control_pid(s); | |
2164 | else | |
2165 | service_unwatch_main_pid(s); | |
2166 | ||
8f53a7b8 LP |
2167 | /* We want to ensure that nobody leaks processes from |
2168 | * START_PRE here, so let's go on a killing spree, People | |
2169 | * should not spawn long running processes from START_PRE. */ | |
88f3e0c9 | 2170 | cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control"); |
8f53a7b8 | 2171 | |
867b3b7d LP |
2172 | if (s->type == SERVICE_FORKING) { |
2173 | s->control_command_id = SERVICE_EXEC_START; | |
2174 | c = s->control_command = s->exec_command[SERVICE_EXEC_START]; | |
2175 | ||
2176 | s->main_command = NULL; | |
2177 | } else { | |
2178 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
2179 | s->control_command = NULL; | |
2180 | ||
2181 | c = s->main_command = s->exec_command[SERVICE_EXEC_START]; | |
2182 | } | |
34e9ba66 | 2183 | |
ecedd90f LP |
2184 | r = service_spawn(s, |
2185 | c, | |
98709151 | 2186 | s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT, |
ecedd90f LP |
2187 | true, |
2188 | true, | |
2189 | true, | |
2190 | true, | |
2191 | s->notify_access != NOTIFY_NONE, | |
2192 | false, | |
2193 | &pid); | |
2194 | if (r < 0) | |
034c6ed7 LP |
2195 | goto fail; |
2196 | ||
f2b68789 | 2197 | if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) { |
034c6ed7 LP |
2198 | /* For simple services we immediately start |
2199 | * the START_POST binaries. */ | |
2200 | ||
5925dd3c | 2201 | service_set_main_pid(s, pid); |
034c6ed7 LP |
2202 | service_enter_start_post(s); |
2203 | ||
2204 | } else if (s->type == SERVICE_FORKING) { | |
2205 | ||
2206 | /* For forking services we wait until the start | |
2207 | * process exited. */ | |
2208 | ||
e55224ca | 2209 | s->control_pid = pid; |
80876c20 LP |
2210 | service_set_state(s, SERVICE_START); |
2211 | ||
34e9ba66 | 2212 | } else if (s->type == SERVICE_ONESHOT || |
8c47c732 LP |
2213 | s->type == SERVICE_DBUS || |
2214 | s->type == SERVICE_NOTIFY) { | |
7d55e835 | 2215 | |
34e9ba66 | 2216 | /* For oneshot services we wait until the start |
7d55e835 LP |
2217 | * process exited, too, but it is our main process. */ |
2218 | ||
05e343b7 | 2219 | /* For D-Bus services we know the main pid right away, |
8c47c732 LP |
2220 | * but wait for the bus name to appear on the |
2221 | * bus. Notify services are similar. */ | |
05e343b7 | 2222 | |
5925dd3c | 2223 | service_set_main_pid(s, pid); |
80876c20 | 2224 | service_set_state(s, SERVICE_START); |
034c6ed7 LP |
2225 | } else |
2226 | assert_not_reached("Unknown service type"); | |
2227 | ||
2228 | return; | |
2229 | ||
2230 | fail: | |
1124fe6f | 2231 | log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 2232 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 LP |
2233 | } |
2234 | ||
2235 | static void service_enter_start_pre(Service *s) { | |
2236 | int r; | |
2237 | ||
2238 | assert(s); | |
2239 | ||
5e94833f LP |
2240 | service_unwatch_control_pid(s); |
2241 | ||
80876c20 | 2242 | if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) { |
8f53a7b8 LP |
2243 | |
2244 | /* Before we start anything, let's clear up what might | |
2245 | * be left from previous runs. */ | |
88f3e0c9 | 2246 | cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control"); |
8f53a7b8 | 2247 | |
867b3b7d LP |
2248 | s->control_command_id = SERVICE_EXEC_START_PRE; |
2249 | ||
ecedd90f LP |
2250 | r = service_spawn(s, |
2251 | s->control_command, | |
2252 | true, | |
2253 | false, | |
2254 | !s->permissions_start_only, | |
2255 | !s->root_directory_start_only, | |
2256 | true, | |
2257 | false, | |
2258 | true, | |
2259 | &s->control_pid); | |
2260 | if (r < 0) | |
034c6ed7 LP |
2261 | goto fail; |
2262 | ||
80876c20 LP |
2263 | service_set_state(s, SERVICE_START_PRE); |
2264 | } else | |
034c6ed7 LP |
2265 | service_enter_start(s); |
2266 | ||
2267 | return; | |
2268 | ||
2269 | fail: | |
1124fe6f | 2270 | log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 2271 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
034c6ed7 LP |
2272 | } |
2273 | ||
2274 | static void service_enter_restart(Service *s) { | |
2275 | int r; | |
398ef8ba LP |
2276 | DBusError error; |
2277 | ||
034c6ed7 | 2278 | assert(s); |
398ef8ba | 2279 | dbus_error_init(&error); |
034c6ed7 | 2280 | |
a8bb2e65 LP |
2281 | if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { |
2282 | /* Don't restart things if we are going down anyway */ | |
2283 | log_info("Stop job pending for unit, delaying automatic restart."); | |
2edfa366 | 2284 | |
a8bb2e65 LP |
2285 | r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch); |
2286 | if (r < 0) | |
2edfa366 | 2287 | goto fail; |
feae8adb DW |
2288 | |
2289 | return; | |
2edfa366 LP |
2290 | } |
2291 | ||
48bb5876 DW |
2292 | /* Any units that are bound to this service must also be |
2293 | * restarted. We use JOB_RESTART (instead of the more obvious | |
2294 | * JOB_START) here so that those dependency jobs will be added | |
2295 | * as well. */ | |
2296 | r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL); | |
2297 | if (r < 0) | |
034c6ed7 LP |
2298 | goto fail; |
2299 | ||
a8bb2e65 LP |
2300 | /* Note that we stay in the SERVICE_AUTO_RESTART state here, |
2301 | * it will be canceled as part of the service_stop() call that | |
2302 | * is executed as part of JOB_RESTART. */ | |
2303 | ||
1124fe6f | 2304 | log_debug("%s scheduled restart job.", UNIT(s)->id); |
034c6ed7 LP |
2305 | return; |
2306 | ||
2307 | fail: | |
1124fe6f | 2308 | log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r)); |
f42806df | 2309 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); |
398ef8ba LP |
2310 | |
2311 | dbus_error_free(&error); | |
034c6ed7 LP |
2312 | } |
2313 | ||
2314 | static void service_enter_reload(Service *s) { | |
2315 | int r; | |
2316 | ||
2317 | assert(s); | |
2318 | ||
5e94833f LP |
2319 | service_unwatch_control_pid(s); |
2320 | ||
80876c20 | 2321 | if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) { |
867b3b7d LP |
2322 | s->control_command_id = SERVICE_EXEC_RELOAD; |
2323 | ||
ecedd90f LP |
2324 | r = service_spawn(s, |
2325 | s->control_command, | |
2326 | true, | |
2327 | false, | |
2328 | !s->permissions_start_only, | |
2329 | !s->root_directory_start_only, | |
2330 | false, | |
2331 | false, | |
2332 | true, | |
2333 | &s->control_pid); | |
2334 | if (r < 0) | |
034c6ed7 LP |
2335 | goto fail; |
2336 | ||
80876c20 LP |
2337 | service_set_state(s, SERVICE_RELOAD); |
2338 | } else | |
f42806df | 2339 | service_enter_running(s, SERVICE_SUCCESS); |
034c6ed7 LP |
2340 | |
2341 | return; | |
2342 | ||
2343 | fail: | |
1124fe6f | 2344 | log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r)); |
f42806df LP |
2345 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2346 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
2347 | } |
2348 | ||
f42806df | 2349 | static void service_run_next_control(Service *s) { |
034c6ed7 LP |
2350 | int r; |
2351 | ||
2352 | assert(s); | |
2353 | assert(s->control_command); | |
2354 | assert(s->control_command->command_next); | |
2355 | ||
34e9ba66 | 2356 | assert(s->control_command_id != SERVICE_EXEC_START); |
034c6ed7 | 2357 | |
34e9ba66 | 2358 | s->control_command = s->control_command->command_next; |
5e94833f LP |
2359 | service_unwatch_control_pid(s); |
2360 | ||
ecedd90f LP |
2361 | r = service_spawn(s, |
2362 | s->control_command, | |
2363 | true, | |
2364 | false, | |
2365 | !s->permissions_start_only, | |
2366 | !s->root_directory_start_only, | |
2367 | s->control_command_id == SERVICE_EXEC_START_PRE || | |
2368 | s->control_command_id == SERVICE_EXEC_STOP_POST, | |
2369 | false, | |
2370 | true, | |
2371 | &s->control_pid); | |
2372 | if (r < 0) | |
034c6ed7 LP |
2373 | goto fail; |
2374 | ||
2375 | return; | |
2376 | ||
2377 | fail: | |
1124fe6f | 2378 | log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r)); |
034c6ed7 | 2379 | |
80876c20 | 2380 | if (s->state == SERVICE_START_PRE) |
f42806df | 2381 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
80876c20 | 2382 | else if (s->state == SERVICE_STOP) |
f42806df | 2383 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
034c6ed7 | 2384 | else if (s->state == SERVICE_STOP_POST) |
f42806df | 2385 | service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); |
e2f3b44c | 2386 | else if (s->state == SERVICE_RELOAD) { |
f42806df LP |
2387 | s->reload_result = SERVICE_FAILURE_RESOURCES; |
2388 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c | 2389 | } else |
f42806df | 2390 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
5cb5a6ff LP |
2391 | } |
2392 | ||
f42806df | 2393 | static void service_run_next_main(Service *s) { |
34e9ba66 LP |
2394 | pid_t pid; |
2395 | int r; | |
2396 | ||
2397 | assert(s); | |
867b3b7d LP |
2398 | assert(s->main_command); |
2399 | assert(s->main_command->command_next); | |
2400 | assert(s->type == SERVICE_ONESHOT); | |
34e9ba66 | 2401 | |
867b3b7d | 2402 | s->main_command = s->main_command->command_next; |
34e9ba66 LP |
2403 | service_unwatch_main_pid(s); |
2404 | ||
ecedd90f LP |
2405 | r = service_spawn(s, |
2406 | s->main_command, | |
98709151 | 2407 | true, |
ecedd90f LP |
2408 | true, |
2409 | true, | |
2410 | true, | |
2411 | true, | |
2412 | s->notify_access != NOTIFY_NONE, | |
2413 | false, | |
2414 | &pid); | |
2415 | if (r < 0) | |
34e9ba66 LP |
2416 | goto fail; |
2417 | ||
2418 | service_set_main_pid(s, pid); | |
2419 | ||
2420 | return; | |
2421 | ||
2422 | fail: | |
1124fe6f | 2423 | log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r)); |
f42806df | 2424 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
34e9ba66 LP |
2425 | } |
2426 | ||
4b939747 MO |
2427 | static int service_start_limit_test(Service *s) { |
2428 | assert(s); | |
2429 | ||
2430 | if (ratelimit_test(&s->start_limit)) | |
2431 | return 0; | |
2432 | ||
2433 | switch (s->start_limit_action) { | |
2434 | ||
2435 | case SERVICE_START_LIMIT_NONE: | |
2436 | log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id); | |
2437 | break; | |
2438 | ||
2439 | case SERVICE_START_LIMIT_REBOOT: { | |
2440 | DBusError error; | |
2441 | int r; | |
2442 | ||
2443 | dbus_error_init(&error); | |
2444 | ||
2445 | log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id); | |
2446 | ||
2447 | r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL); | |
2448 | if (r < 0) { | |
2449 | log_error("Failed to reboot: %s.", bus_error(&error, r)); | |
2450 | dbus_error_free(&error); | |
2451 | } | |
2452 | ||
2453 | break; | |
2454 | } | |
2455 | ||
2456 | case SERVICE_START_LIMIT_REBOOT_FORCE: | |
6bda96a0 | 2457 | log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id); |
4b939747 MO |
2458 | UNIT(s)->manager->exit_code = MANAGER_REBOOT; |
2459 | break; | |
2460 | ||
2461 | case SERVICE_START_LIMIT_REBOOT_IMMEDIATE: | |
2462 | log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id); | |
2463 | reboot(RB_AUTOBOOT); | |
2464 | break; | |
2465 | ||
2466 | default: | |
2467 | log_error("start limit action=%i", s->start_limit_action); | |
2468 | assert_not_reached("Unknown StartLimitAction."); | |
2469 | } | |
2470 | ||
2471 | return -ECANCELED; | |
2472 | } | |
2473 | ||
87f0e418 LP |
2474 | static int service_start(Unit *u) { |
2475 | Service *s = SERVICE(u); | |
4b939747 | 2476 | int r; |
5cb5a6ff LP |
2477 | |
2478 | assert(s); | |
2479 | ||
034c6ed7 LP |
2480 | /* We cannot fulfill this request right now, try again later |
2481 | * please! */ | |
2482 | if (s->state == SERVICE_STOP || | |
2483 | s->state == SERVICE_STOP_SIGTERM || | |
2484 | s->state == SERVICE_STOP_SIGKILL || | |
2485 | s->state == SERVICE_STOP_POST || | |
2486 | s->state == SERVICE_FINAL_SIGTERM || | |
2487 | s->state == SERVICE_FINAL_SIGKILL) | |
5cb5a6ff LP |
2488 | return -EAGAIN; |
2489 | ||
034c6ed7 LP |
2490 | /* Already on it! */ |
2491 | if (s->state == SERVICE_START_PRE || | |
2492 | s->state == SERVICE_START || | |
2493 | s->state == SERVICE_START_POST) | |
2494 | return 0; | |
2495 | ||
2e9d6c12 | 2496 | /* A service that will be restarted must be stopped first to |
7f2cddae | 2497 | * trigger BindsTo and/or OnFailure dependencies. If a user |
2e9d6c12 | 2498 | * does not want to wait for the holdoff time to elapse, the |
d4943dc7 LP |
2499 | * service should be manually restarted, not started. We |
2500 | * simply return EAGAIN here, so that any start jobs stay | |
2501 | * queued, and assume that the auto restart timer will | |
2502 | * eventually trigger the restart. */ | |
2503 | if (s->state == SERVICE_AUTO_RESTART) | |
a8bb2e65 | 2504 | return -EAGAIN; |
2e9d6c12 DW |
2505 | |
2506 | assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED); | |
5cb5a6ff | 2507 | |
1e2e8133 | 2508 | /* Make sure we don't enter a busy loop of some kind. */ |
4b939747 | 2509 | r = service_start_limit_test(s); |
c2f34808 | 2510 | if (r < 0) { |
8d1b002a | 2511 | service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false); |
4b939747 | 2512 | return r; |
c2f34808 | 2513 | } |
1e2e8133 | 2514 | |
f42806df LP |
2515 | s->result = SERVICE_SUCCESS; |
2516 | s->reload_result = SERVICE_SUCCESS; | |
034c6ed7 | 2517 | s->main_pid_known = false; |
6dfa5494 | 2518 | s->main_pid_alien = false; |
47342320 | 2519 | s->forbid_restart = false; |
034c6ed7 LP |
2520 | |
2521 | service_enter_start_pre(s); | |
2522 | return 0; | |
5cb5a6ff LP |
2523 | } |
2524 | ||
87f0e418 LP |
2525 | static int service_stop(Unit *u) { |
2526 | Service *s = SERVICE(u); | |
5cb5a6ff LP |
2527 | |
2528 | assert(s); | |
2529 | ||
f0c7b229 | 2530 | /* Don't create restart jobs from here. */ |
47342320 | 2531 | s->forbid_restart = true; |
034c6ed7 | 2532 | |
e537352b LP |
2533 | /* Already on it */ |
2534 | if (s->state == SERVICE_STOP || | |
2535 | s->state == SERVICE_STOP_SIGTERM || | |
2536 | s->state == SERVICE_STOP_SIGKILL || | |
2537 | s->state == SERVICE_STOP_POST || | |
2538 | s->state == SERVICE_FINAL_SIGTERM || | |
2539 | s->state == SERVICE_FINAL_SIGKILL) | |
2540 | return 0; | |
2541 | ||
f0c7b229 | 2542 | /* A restart will be scheduled or is in progress. */ |
034c6ed7 | 2543 | if (s->state == SERVICE_AUTO_RESTART) { |
0c7f15b3 | 2544 | service_set_state(s, SERVICE_DEAD); |
034c6ed7 LP |
2545 | return 0; |
2546 | } | |
2547 | ||
3f6c78dc LP |
2548 | /* If there's already something running we go directly into |
2549 | * kill mode. */ | |
2550 | if (s->state == SERVICE_START_PRE || | |
2551 | s->state == SERVICE_START || | |
2552 | s->state == SERVICE_START_POST || | |
2553 | s->state == SERVICE_RELOAD) { | |
f42806df | 2554 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS); |
3f6c78dc LP |
2555 | return 0; |
2556 | } | |
5cb5a6ff | 2557 | |
3f6c78dc LP |
2558 | assert(s->state == SERVICE_RUNNING || |
2559 | s->state == SERVICE_EXITED); | |
3a762661 | 2560 | |
f42806df | 2561 | service_enter_stop(s, SERVICE_SUCCESS); |
5cb5a6ff LP |
2562 | return 0; |
2563 | } | |
2564 | ||
87f0e418 LP |
2565 | static int service_reload(Unit *u) { |
2566 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2567 | |
2568 | assert(s); | |
2569 | ||
80876c20 | 2570 | assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); |
034c6ed7 LP |
2571 | |
2572 | service_enter_reload(s); | |
5cb5a6ff LP |
2573 | return 0; |
2574 | } | |
2575 | ||
87f0e418 LP |
2576 | static bool service_can_reload(Unit *u) { |
2577 | Service *s = SERVICE(u); | |
034c6ed7 LP |
2578 | |
2579 | assert(s); | |
2580 | ||
2581 | return !!s->exec_command[SERVICE_EXEC_RELOAD]; | |
2582 | } | |
2583 | ||
a16e1123 LP |
2584 | static int service_serialize(Unit *u, FILE *f, FDSet *fds) { |
2585 | Service *s = SERVICE(u); | |
2586 | ||
2587 | assert(u); | |
2588 | assert(f); | |
2589 | assert(fds); | |
2590 | ||
2591 | unit_serialize_item(u, f, "state", service_state_to_string(s->state)); | |
f42806df LP |
2592 | unit_serialize_item(u, f, "result", service_result_to_string(s->result)); |
2593 | unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); | |
a16e1123 LP |
2594 | |
2595 | if (s->control_pid > 0) | |
5925dd3c | 2596 | unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid); |
a16e1123 | 2597 | |
5925dd3c LP |
2598 | if (s->main_pid_known && s->main_pid > 0) |
2599 | unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid); | |
a16e1123 LP |
2600 | |
2601 | unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); | |
2602 | ||
3a2776bc LP |
2603 | if (s->status_text) |
2604 | unit_serialize_item(u, f, "status-text", s->status_text); | |
2605 | ||
cfc4eb4c LP |
2606 | /* FIXME: There's a minor uncleanliness here: if there are |
2607 | * multiple commands attached here, we will start from the | |
2608 | * first one again */ | |
a16e1123 | 2609 | if (s->control_command_id >= 0) |
825636e5 | 2610 | unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id)); |
a16e1123 LP |
2611 | |
2612 | if (s->socket_fd >= 0) { | |
2613 | int copy; | |
2614 | ||
2615 | if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0) | |
2616 | return copy; | |
2617 | ||
2618 | unit_serialize_item_format(u, f, "socket-fd", "%i", copy); | |
2619 | } | |
2620 | ||
ecdbca40 LP |
2621 | if (s->main_exec_status.pid > 0) { |
2622 | unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid); | |
799fd0fd LP |
2623 | dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); |
2624 | dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); | |
ecdbca40 | 2625 | |
799fd0fd | 2626 | if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { |
ecdbca40 LP |
2627 | unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code); |
2628 | unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status); | |
2629 | } | |
2630 | } | |
a6927d7f MO |
2631 | if (dual_timestamp_is_set(&s->watchdog_timestamp)) |
2632 | dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); | |
ecdbca40 | 2633 | |
a16e1123 LP |
2634 | return 0; |
2635 | } | |
2636 | ||
2637 | static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
2638 | Service *s = SERVICE(u); | |
a16e1123 LP |
2639 | |
2640 | assert(u); | |
2641 | assert(key); | |
2642 | assert(value); | |
2643 | assert(fds); | |
2644 | ||
2645 | if (streq(key, "state")) { | |
2646 | ServiceState state; | |
2647 | ||
2648 | if ((state = service_state_from_string(value)) < 0) | |
2649 | log_debug("Failed to parse state value %s", value); | |
2650 | else | |
2651 | s->deserialized_state = state; | |
f42806df LP |
2652 | } else if (streq(key, "result")) { |
2653 | ServiceResult f; | |
2654 | ||
2655 | f = service_result_from_string(value); | |
2656 | if (f < 0) | |
2657 | log_debug("Failed to parse result value %s", value); | |
2658 | else if (f != SERVICE_SUCCESS) | |
2659 | s->result = f; | |
2660 | ||
2661 | } else if (streq(key, "reload-result")) { | |
2662 | ServiceResult f; | |
2663 | ||
2664 | f = service_result_from_string(value); | |
2665 | if (f < 0) | |
2666 | log_debug("Failed to parse reload result value %s", value); | |
2667 | else if (f != SERVICE_SUCCESS) | |
2668 | s->reload_result = f; | |
a16e1123 | 2669 | |
a16e1123 | 2670 | } else if (streq(key, "control-pid")) { |
5925dd3c | 2671 | pid_t pid; |
a16e1123 | 2672 | |
e364ad06 | 2673 | if (parse_pid(value, &pid) < 0) |
a16e1123 LP |
2674 | log_debug("Failed to parse control-pid value %s", value); |
2675 | else | |
e55224ca | 2676 | s->control_pid = pid; |
a16e1123 | 2677 | } else if (streq(key, "main-pid")) { |
5925dd3c | 2678 | pid_t pid; |
a16e1123 | 2679 | |
e364ad06 | 2680 | if (parse_pid(value, &pid) < 0) |
a16e1123 LP |
2681 | log_debug("Failed to parse main-pid value %s", value); |
2682 | else | |
5925dd3c | 2683 | service_set_main_pid(s, (pid_t) pid); |
a16e1123 LP |
2684 | } else if (streq(key, "main-pid-known")) { |
2685 | int b; | |
2686 | ||
2687 | if ((b = parse_boolean(value)) < 0) | |
2688 | log_debug("Failed to parse main-pid-known value %s", value); | |
2689 | else | |
2690 | s->main_pid_known = b; | |
3a2776bc LP |
2691 | } else if (streq(key, "status-text")) { |
2692 | char *t; | |
2693 | ||
2694 | if ((t = strdup(value))) { | |
2695 | free(s->status_text); | |
2696 | s->status_text = t; | |
2697 | } | |
2698 | ||
a16e1123 LP |
2699 | } else if (streq(key, "control-command")) { |
2700 | ServiceExecCommand id; | |
2701 | ||
2702 | if ((id = service_exec_command_from_string(value)) < 0) | |
2703 | log_debug("Failed to parse exec-command value %s", value); | |
2704 | else { | |
2705 | s->control_command_id = id; | |
2706 | s->control_command = s->exec_command[id]; | |
2707 | } | |
2708 | } else if (streq(key, "socket-fd")) { | |
2709 | int fd; | |
2710 | ||
2711 | if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) | |
2712 | log_debug("Failed to parse socket-fd value %s", value); | |
2713 | else { | |
2714 | ||
2715 | if (s->socket_fd >= 0) | |
2716 | close_nointr_nofail(s->socket_fd); | |
2717 | s->socket_fd = fdset_remove(fds, fd); | |
2718 | } | |
ecdbca40 LP |
2719 | } else if (streq(key, "main-exec-status-pid")) { |
2720 | pid_t pid; | |
2721 | ||
e364ad06 | 2722 | if (parse_pid(value, &pid) < 0) |
ecdbca40 LP |
2723 | log_debug("Failed to parse main-exec-status-pid value %s", value); |
2724 | else | |
2725 | s->main_exec_status.pid = pid; | |
2726 | } else if (streq(key, "main-exec-status-code")) { | |
2727 | int i; | |
2728 | ||
e364ad06 | 2729 | if (safe_atoi(value, &i) < 0) |
ecdbca40 LP |
2730 | log_debug("Failed to parse main-exec-status-code value %s", value); |
2731 | else | |
2732 | s->main_exec_status.code = i; | |
2733 | } else if (streq(key, "main-exec-status-status")) { | |
2734 | int i; | |
2735 | ||
e364ad06 | 2736 | if (safe_atoi(value, &i) < 0) |
ecdbca40 LP |
2737 | log_debug("Failed to parse main-exec-status-status value %s", value); |
2738 | else | |
2739 | s->main_exec_status.status = i; | |
799fd0fd LP |
2740 | } else if (streq(key, "main-exec-status-start")) |
2741 | dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp); | |
2742 | else if (streq(key, "main-exec-status-exit")) | |
2743 | dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); | |
a6927d7f MO |
2744 | else if (streq(key, "watchdog-timestamp")) |
2745 | dual_timestamp_deserialize(value, &s->watchdog_timestamp); | |
799fd0fd | 2746 | else |
a16e1123 LP |
2747 | log_debug("Unknown serialization key '%s'", key); |
2748 | ||
2749 | return 0; | |
2750 | } | |
2751 | ||
87f0e418 | 2752 | static UnitActiveState service_active_state(Unit *u) { |
e056b01d LP |
2753 | const UnitActiveState *table; |
2754 | ||
87f0e418 | 2755 | assert(u); |
5cb5a6ff | 2756 | |
e056b01d LP |
2757 | table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; |
2758 | ||
2759 | return table[SERVICE(u)->state]; | |
034c6ed7 LP |
2760 | } |
2761 | ||
10a94420 LP |
2762 | static const char *service_sub_state_to_string(Unit *u) { |
2763 | assert(u); | |
2764 | ||
2765 | return service_state_to_string(SERVICE(u)->state); | |
2766 | } | |
2767 | ||
701cc384 LP |
2768 | static bool service_check_gc(Unit *u) { |
2769 | Service *s = SERVICE(u); | |
2770 | ||
2771 | assert(s); | |
2772 | ||
6d55002a LP |
2773 | /* Never clean up services that still have a process around, |
2774 | * even if the service is formally dead. */ | |
2775 | if (cgroup_good(s) > 0 || | |
2776 | main_pid_good(s) > 0 || | |
2777 | control_pid_good(s) > 0) | |
2778 | return true; | |
2779 | ||
2780 | #ifdef HAVE_SYSV_COMPAT | |
1b64d026 | 2781 | if (s->is_sysv) |
6d55002a | 2782 | return true; |
07459bb6 | 2783 | #endif |
701cc384 | 2784 | |
6d55002a LP |
2785 | return false; |
2786 | } | |
2787 | ||
701cc384 LP |
2788 | static bool service_check_snapshot(Unit *u) { |
2789 | Service *s = SERVICE(u); | |
2790 | ||
2791 | assert(s); | |
2792 | ||
2793 | return !s->got_socket_fd; | |
2794 | } | |
2795 | ||
3a111838 MS |
2796 | static int service_retry_pid_file(Service *s) { |
2797 | int r; | |
2798 | ||
2799 | assert(s->pid_file); | |
2800 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2801 | ||
2802 | r = service_load_pid_file(s, false); | |
2803 | if (r < 0) | |
2804 | return r; | |
2805 | ||
2806 | service_unwatch_pid_file(s); | |
2807 | ||
f42806df | 2808 | service_enter_running(s, SERVICE_SUCCESS); |
3a111838 MS |
2809 | return 0; |
2810 | } | |
2811 | ||
2812 | static int service_watch_pid_file(Service *s) { | |
2813 | int r; | |
2814 | ||
1124fe6f | 2815 | log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path); |
57020a3a | 2816 | r = path_spec_watch(s->pid_file_pathspec, UNIT(s)); |
3a111838 MS |
2817 | if (r < 0) |
2818 | goto fail; | |
2819 | ||
2820 | /* the pidfile might have appeared just before we set the watch */ | |
2821 | service_retry_pid_file(s); | |
2822 | ||
2823 | return 0; | |
2824 | fail: | |
2825 | log_error("Failed to set a watch for %s's PID file %s: %s", | |
1124fe6f | 2826 | UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r)); |
3a111838 MS |
2827 | service_unwatch_pid_file(s); |
2828 | return r; | |
2829 | } | |
2830 | ||
2831 | static int service_demand_pid_file(Service *s) { | |
2832 | PathSpec *ps; | |
2833 | ||
2834 | assert(s->pid_file); | |
2835 | assert(!s->pid_file_pathspec); | |
2836 | ||
2837 | ps = new0(PathSpec, 1); | |
2838 | if (!ps) | |
2839 | return -ENOMEM; | |
2840 | ||
2841 | ps->path = strdup(s->pid_file); | |
2842 | if (!ps->path) { | |
2843 | free(ps); | |
2844 | return -ENOMEM; | |
2845 | } | |
2846 | ||
2847 | path_kill_slashes(ps->path); | |
2848 | ||
2849 | /* PATH_CHANGED would not be enough. There are daemons (sendmail) that | |
2850 | * keep their PID file open all the time. */ | |
2851 | ps->type = PATH_MODIFIED; | |
2852 | ps->inotify_fd = -1; | |
2853 | ||
2854 | s->pid_file_pathspec = ps; | |
2855 | ||
2856 | return service_watch_pid_file(s); | |
2857 | } | |
2858 | ||
2859 | static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) { | |
2860 | Service *s = SERVICE(u); | |
2861 | ||
2862 | assert(s); | |
2863 | assert(fd >= 0); | |
2864 | assert(s->state == SERVICE_START || s->state == SERVICE_START_POST); | |
2865 | assert(s->pid_file_pathspec); | |
57020a3a | 2866 | assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); |
3a111838 | 2867 | |
ac155bb8 | 2868 | log_debug("inotify event for %s", u->id); |
3a111838 | 2869 | |
57020a3a | 2870 | if (path_spec_fd_event(s->pid_file_pathspec, events) < 0) |
3a111838 MS |
2871 | goto fail; |
2872 | ||
2873 | if (service_retry_pid_file(s) == 0) | |
2874 | return; | |
2875 | ||
2876 | if (service_watch_pid_file(s) < 0) | |
2877 | goto fail; | |
2878 | ||
2879 | return; | |
2880 | fail: | |
2881 | service_unwatch_pid_file(s); | |
f42806df | 2882 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
2883 | } |
2884 | ||
87f0e418 LP |
2885 | static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2886 | Service *s = SERVICE(u); | |
f42806df | 2887 | ServiceResult f; |
5cb5a6ff LP |
2888 | |
2889 | assert(s); | |
034c6ed7 LP |
2890 | assert(pid >= 0); |
2891 | ||
96342de6 LN |
2892 | if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) : |
2893 | is_clean_exit_lsb(code, status, &s->success_status)) | |
f42806df LP |
2894 | f = SERVICE_SUCCESS; |
2895 | else if (code == CLD_EXITED) | |
2896 | f = SERVICE_FAILURE_EXIT_CODE; | |
2897 | else if (code == CLD_KILLED) | |
2898 | f = SERVICE_FAILURE_SIGNAL; | |
2899 | else if (code == CLD_DUMPED) | |
2900 | f = SERVICE_FAILURE_CORE_DUMP; | |
d06dacd0 | 2901 | else |
cfc4eb4c | 2902 | assert_not_reached("Unknown code"); |
034c6ed7 LP |
2903 | |
2904 | if (s->main_pid == pid) { | |
db01f8b3 MS |
2905 | /* Forking services may occasionally move to a new PID. |
2906 | * As long as they update the PID file before exiting the old | |
2907 | * PID, they're fine. */ | |
5375410b | 2908 | if (service_load_pid_file(s, false) == 0) |
db01f8b3 | 2909 | return; |
034c6ed7 | 2910 | |
034c6ed7 | 2911 | s->main_pid = 0; |
6ea832a2 | 2912 | exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); |
034c6ed7 | 2913 | |
867b3b7d LP |
2914 | /* If this is not a forking service than the main |
2915 | * process got started and hence we copy the exit | |
2916 | * status so that it is recorded both as main and as | |
2917 | * control process exit status */ | |
2918 | if (s->main_command) { | |
2919 | s->main_command->exec_status = s->main_exec_status; | |
b708e7ce | 2920 | |
867b3b7d | 2921 | if (s->main_command->ignore) |
f42806df | 2922 | f = SERVICE_SUCCESS; |
034c6ed7 LP |
2923 | } |
2924 | ||
f42806df | 2925 | log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, |
ac155bb8 | 2926 | "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status); |
f42806df LP |
2927 | |
2928 | if (f != SERVICE_SUCCESS) | |
2929 | s->result = f; | |
034c6ed7 | 2930 | |
867b3b7d LP |
2931 | if (s->main_command && |
2932 | s->main_command->command_next && | |
f42806df | 2933 | f == SERVICE_SUCCESS) { |
034c6ed7 | 2934 | |
34e9ba66 LP |
2935 | /* There is another command to * |
2936 | * execute, so let's do that. */ | |
034c6ed7 | 2937 | |
ac155bb8 | 2938 | log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state)); |
f42806df | 2939 | service_run_next_main(s); |
034c6ed7 | 2940 | |
34e9ba66 LP |
2941 | } else { |
2942 | ||
2943 | /* The service exited, so the service is officially | |
2944 | * gone. */ | |
867b3b7d | 2945 | s->main_command = NULL; |
34e9ba66 LP |
2946 | |
2947 | switch (s->state) { | |
2948 | ||
2949 | case SERVICE_START_POST: | |
2950 | case SERVICE_RELOAD: | |
2951 | case SERVICE_STOP: | |
2952 | /* Need to wait until the operation is | |
2953 | * done */ | |
c4653a4d | 2954 | break; |
7d55e835 | 2955 | |
34e9ba66 LP |
2956 | case SERVICE_START: |
2957 | if (s->type == SERVICE_ONESHOT) { | |
2958 | /* This was our main goal, so let's go on */ | |
f42806df | 2959 | if (f == SERVICE_SUCCESS) |
34e9ba66 LP |
2960 | service_enter_start_post(s); |
2961 | else | |
f42806df | 2962 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
34e9ba66 | 2963 | break; |
34e9ba66 | 2964 | } |
034c6ed7 | 2965 | |
bfba3256 LP |
2966 | /* Fall through */ |
2967 | ||
34e9ba66 | 2968 | case SERVICE_RUNNING: |
f42806df | 2969 | service_enter_running(s, f); |
34e9ba66 | 2970 | break; |
034c6ed7 | 2971 | |
34e9ba66 LP |
2972 | case SERVICE_STOP_SIGTERM: |
2973 | case SERVICE_STOP_SIGKILL: | |
5cb5a6ff | 2974 | |
34e9ba66 | 2975 | if (!control_pid_good(s)) |
f42806df | 2976 | service_enter_stop_post(s, f); |
5cb5a6ff | 2977 | |
34e9ba66 LP |
2978 | /* If there is still a control process, wait for that first */ |
2979 | break; | |
2980 | ||
2981 | default: | |
2982 | assert_not_reached("Uh, main process died at wrong time."); | |
2983 | } | |
034c6ed7 | 2984 | } |
5cb5a6ff | 2985 | |
034c6ed7 | 2986 | } else if (s->control_pid == pid) { |
034c6ed7 | 2987 | |
34e9ba66 LP |
2988 | s->control_pid = 0; |
2989 | ||
b708e7ce | 2990 | if (s->control_command) { |
6ea832a2 | 2991 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 2992 | |
b708e7ce | 2993 | if (s->control_command->ignore) |
f42806df | 2994 | f = SERVICE_SUCCESS; |
b708e7ce LP |
2995 | } |
2996 | ||
f42806df | 2997 | log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, |
ac155bb8 | 2998 | "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status); |
f42806df LP |
2999 | |
3000 | if (f != SERVICE_SUCCESS) | |
3001 | s->result = f; | |
034c6ed7 | 3002 | |
88f3e0c9 LP |
3003 | /* Immediately get rid of the cgroup, so that the |
3004 | * kernel doesn't delay the cgroup empty messages for | |
3005 | * the service cgroup any longer than necessary */ | |
3006 | cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control"); | |
3007 | ||
34e9ba66 LP |
3008 | if (s->control_command && |
3009 | s->control_command->command_next && | |
f42806df | 3010 | f == SERVICE_SUCCESS) { |
034c6ed7 LP |
3011 | |
3012 | /* There is another command to * | |
3013 | * execute, so let's do that. */ | |
3014 | ||
ac155bb8 | 3015 | log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state)); |
f42806df | 3016 | service_run_next_control(s); |
034c6ed7 | 3017 | |
80876c20 | 3018 | } else { |
034c6ed7 LP |
3019 | /* No further commands for this step, so let's |
3020 | * figure out what to do next */ | |
3021 | ||
a16e1123 LP |
3022 | s->control_command = NULL; |
3023 | s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; | |
3024 | ||
ac155bb8 | 3025 | log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state)); |
bd982a8b | 3026 | |
034c6ed7 LP |
3027 | switch (s->state) { |
3028 | ||
3029 | case SERVICE_START_PRE: | |
f42806df | 3030 | if (f == SERVICE_SUCCESS) |
034c6ed7 LP |
3031 | service_enter_start(s); |
3032 | else | |
f42806df | 3033 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); |
034c6ed7 LP |
3034 | break; |
3035 | ||
3036 | case SERVICE_START: | |
bfba3256 LP |
3037 | if (s->type != SERVICE_FORKING) |
3038 | /* Maybe spurious event due to a reload that changed the type? */ | |
3039 | break; | |
034c6ed7 | 3040 | |
f42806df LP |
3041 | if (f != SERVICE_SUCCESS) { |
3042 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); | |
3a111838 MS |
3043 | break; |
3044 | } | |
034c6ed7 | 3045 | |
3a111838 | 3046 | if (s->pid_file) { |
f42806df LP |
3047 | bool has_start_post; |
3048 | int r; | |
3049 | ||
3a111838 MS |
3050 | /* Let's try to load the pid file here if we can. |
3051 | * The PID file might actually be created by a START_POST | |
3052 | * script. In that case don't worry if the loading fails. */ | |
f42806df LP |
3053 | |
3054 | has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST]; | |
3055 | r = service_load_pid_file(s, !has_start_post); | |
3a111838 MS |
3056 | if (!has_start_post && r < 0) { |
3057 | r = service_demand_pid_file(s); | |
3058 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 3059 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
3060 | break; |
3061 | } | |
034c6ed7 | 3062 | } else |
3a111838 | 3063 | service_search_main_pid(s); |
034c6ed7 | 3064 | |
3a111838 | 3065 | service_enter_start_post(s); |
034c6ed7 LP |
3066 | break; |
3067 | ||
3068 | case SERVICE_START_POST: | |
f42806df LP |
3069 | if (f != SERVICE_SUCCESS) { |
3070 | service_enter_stop(s, f); | |
2096e009 | 3071 | break; |
034c6ed7 LP |
3072 | } |
3073 | ||
2096e009 | 3074 | if (s->pid_file) { |
f42806df LP |
3075 | int r; |
3076 | ||
3077 | r = service_load_pid_file(s, true); | |
2096e009 MS |
3078 | if (r < 0) { |
3079 | r = service_demand_pid_file(s); | |
3080 | if (r < 0 || !cgroup_good(s)) | |
f42806df | 3081 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
2096e009 MS |
3082 | break; |
3083 | } | |
3084 | } else | |
3085 | service_search_main_pid(s); | |
3086 | ||
f42806df | 3087 | service_enter_running(s, SERVICE_SUCCESS); |
3185a36b | 3088 | break; |
034c6ed7 LP |
3089 | |
3090 | case SERVICE_RELOAD: | |
f42806df | 3091 | if (f == SERVICE_SUCCESS) { |
5375410b | 3092 | service_load_pid_file(s, true); |
3185a36b LP |
3093 | service_search_main_pid(s); |
3094 | } | |
3095 | ||
f42806df LP |
3096 | s->reload_result = f; |
3097 | service_enter_running(s, SERVICE_SUCCESS); | |
034c6ed7 LP |
3098 | break; |
3099 | ||
3100 | case SERVICE_STOP: | |
f42806df | 3101 | service_enter_signal(s, SERVICE_STOP_SIGTERM, f); |
034c6ed7 LP |
3102 | break; |
3103 | ||
3104 | case SERVICE_STOP_SIGTERM: | |
3105 | case SERVICE_STOP_SIGKILL: | |
3106 | if (main_pid_good(s) <= 0) | |
f42806df | 3107 | service_enter_stop_post(s, f); |
034c6ed7 LP |
3108 | |
3109 | /* If there is still a service | |
3110 | * process around, wait until | |
3111 | * that one quit, too */ | |
3112 | break; | |
3113 | ||
3114 | case SERVICE_STOP_POST: | |
3115 | case SERVICE_FINAL_SIGTERM: | |
3116 | case SERVICE_FINAL_SIGKILL: | |
f42806df | 3117 | service_enter_dead(s, f, true); |
034c6ed7 LP |
3118 | break; |
3119 | ||
3120 | default: | |
3121 | assert_not_reached("Uh, control process died at wrong time."); | |
3122 | } | |
3123 | } | |
8c47c732 | 3124 | } |
c4e2ceae LP |
3125 | |
3126 | /* Notify clients about changed exit status */ | |
3127 | unit_add_to_dbus_queue(u); | |
034c6ed7 LP |
3128 | } |
3129 | ||
acbb0225 | 3130 | static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) { |
87f0e418 | 3131 | Service *s = SERVICE(u); |
034c6ed7 LP |
3132 | |
3133 | assert(s); | |
3134 | assert(elapsed == 1); | |
3135 | ||
bb242b7b MO |
3136 | if (w == &s->watchdog_watch) { |
3137 | service_handle_watchdog(s); | |
3138 | return; | |
3139 | } | |
3140 | ||
acbb0225 | 3141 | assert(w == &s->timer_watch); |
034c6ed7 LP |
3142 | |
3143 | switch (s->state) { | |
3144 | ||
3145 | case SERVICE_START_PRE: | |
3146 | case SERVICE_START: | |
ac155bb8 | 3147 | log_warning("%s operation timed out. Terminating.", u->id); |
f42806df | 3148 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
80876c20 LP |
3149 | break; |
3150 | ||
034c6ed7 | 3151 | case SERVICE_START_POST: |
ac155bb8 | 3152 | log_warning("%s operation timed out. Stopping.", u->id); |
f42806df | 3153 | service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3154 | break; |
3155 | ||
e2f3b44c | 3156 | case SERVICE_RELOAD: |
ac155bb8 | 3157 | log_warning("%s operation timed out. Stopping.", u->id); |
f42806df LP |
3158 | s->reload_result = SERVICE_FAILURE_TIMEOUT; |
3159 | service_enter_running(s, SERVICE_SUCCESS); | |
e2f3b44c LP |
3160 | break; |
3161 | ||
034c6ed7 | 3162 | case SERVICE_STOP: |
ac155bb8 | 3163 | log_warning("%s stopping timed out. Terminating.", u->id); |
f42806df | 3164 | service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3165 | break; |
3166 | ||
3167 | case SERVICE_STOP_SIGTERM: | |
4819ff03 | 3168 | if (s->kill_context.send_sigkill) { |
ac155bb8 | 3169 | log_warning("%s stopping timed out. Killing.", u->id); |
f42806df | 3170 | service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3171 | } else { |
ac155bb8 | 3172 | log_warning("%s stopping timed out. Skipping SIGKILL.", u->id); |
f42806df | 3173 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
ba035df2 LP |
3174 | } |
3175 | ||
034c6ed7 LP |
3176 | break; |
3177 | ||
3178 | case SERVICE_STOP_SIGKILL: | |
35b8ca3a | 3179 | /* Uh, we sent a SIGKILL and it is still not gone? |
034c6ed7 LP |
3180 | * Must be something we cannot kill, so let's just be |
3181 | * weirded out and continue */ | |
3182 | ||
ac155bb8 | 3183 | log_warning("%s still around after SIGKILL. Ignoring.", u->id); |
f42806df | 3184 | service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3185 | break; |
3186 | ||
3187 | case SERVICE_STOP_POST: | |
ac155bb8 | 3188 | log_warning("%s stopping timed out (2). Terminating.", u->id); |
f42806df | 3189 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); |
034c6ed7 LP |
3190 | break; |
3191 | ||
3192 | case SERVICE_FINAL_SIGTERM: | |
4819ff03 | 3193 | if (s->kill_context.send_sigkill) { |
ac155bb8 | 3194 | log_warning("%s stopping timed out (2). Killing.", u->id); |
f42806df | 3195 | service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); |
ba035df2 | 3196 | } else { |
ac155bb8 | 3197 | log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id); |
f42806df | 3198 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); |
ba035df2 LP |
3199 | } |
3200 | ||
034c6ed7 LP |
3201 | break; |
3202 | ||
3203 | case SERVICE_FINAL_SIGKILL: | |
ac155bb8 | 3204 | log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id); |
f42806df | 3205 | service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); |
034c6ed7 LP |
3206 | break; |
3207 | ||
3208 | case SERVICE_AUTO_RESTART: | |
ac155bb8 | 3209 | log_info("%s holdoff time over, scheduling restart.", u->id); |
034c6ed7 LP |
3210 | service_enter_restart(s); |
3211 | break; | |
3212 | ||
3213 | default: | |
3214 | assert_not_reached("Timeout at wrong time."); | |
3215 | } | |
5cb5a6ff LP |
3216 | } |
3217 | ||
8e274523 LP |
3218 | static void service_cgroup_notify_event(Unit *u) { |
3219 | Service *s = SERVICE(u); | |
3220 | ||
3221 | assert(u); | |
3222 | ||
ac155bb8 | 3223 | log_debug("%s: cgroup is empty", u->id); |
8e274523 LP |
3224 | |
3225 | switch (s->state) { | |
3226 | ||
3227 | /* Waiting for SIGCHLD is usually more interesting, | |
3228 | * because it includes return codes/signals. Which is | |
3229 | * why we ignore the cgroup events for most cases, | |
3230 | * except when we don't know pid which to expect the | |
3231 | * SIGCHLD for. */ | |
3232 | ||
3a111838 MS |
3233 | case SERVICE_START: |
3234 | case SERVICE_START_POST: | |
3235 | /* If we were hoping for the daemon to write its PID file, | |
3236 | * we can give up now. */ | |
3237 | if (s->pid_file_pathspec) { | |
1124fe6f | 3238 | log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id); |
3a111838 MS |
3239 | service_unwatch_pid_file(s); |
3240 | if (s->state == SERVICE_START) | |
f42806df | 3241 | service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); |
3a111838 | 3242 | else |
f42806df | 3243 | service_enter_stop(s, SERVICE_FAILURE_RESOURCES); |
3a111838 MS |
3244 | } |
3245 | break; | |
3246 | ||
8e274523 | 3247 | case SERVICE_RUNNING: |
f42806df LP |
3248 | /* service_enter_running() will figure out what to do */ |
3249 | service_enter_running(s, SERVICE_SUCCESS); | |
8e274523 LP |
3250 | break; |
3251 | ||
28708d8a LP |
3252 | case SERVICE_STOP_SIGTERM: |
3253 | case SERVICE_STOP_SIGKILL: | |
6dfa5494 | 3254 | |
28708d8a | 3255 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) |
f42806df | 3256 | service_enter_stop_post(s, SERVICE_SUCCESS); |
28708d8a LP |
3257 | |
3258 | break; | |
3259 | ||
7f97f0fe LP |
3260 | case SERVICE_FINAL_SIGTERM: |
3261 | case SERVICE_FINAL_SIGKILL: | |
3262 | if (main_pid_good(s) <= 0 && !control_pid_good(s)) | |
e201a038 | 3263 | service_enter_dead(s, SERVICE_SUCCESS, true); |
7f97f0fe LP |
3264 | |
3265 | break; | |
3266 | ||
8e274523 LP |
3267 | default: |
3268 | ; | |
3269 | } | |
3270 | } | |
3271 | ||
c952c6ec | 3272 | static void service_notify_message(Unit *u, pid_t pid, char **tags) { |
8c47c732 LP |
3273 | Service *s = SERVICE(u); |
3274 | const char *e; | |
3275 | ||
3276 | assert(u); | |
3277 | ||
c952c6ec LP |
3278 | if (s->notify_access == NOTIFY_NONE) { |
3279 | log_warning("%s: Got notification message from PID %lu, but reception is disabled.", | |
ac155bb8 | 3280 | u->id, (unsigned long) pid); |
c952c6ec LP |
3281 | return; |
3282 | } | |
3283 | ||
3284 | if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { | |
3285 | log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu", | |
ac155bb8 | 3286 | u->id, (unsigned long) pid, (unsigned long) s->main_pid); |
c952c6ec LP |
3287 | return; |
3288 | } | |
3289 | ||
ac155bb8 | 3290 | log_debug("%s: Got message", u->id); |
8c47c732 LP |
3291 | |
3292 | /* Interpret MAINPID= */ | |
3293 | if ((e = strv_find_prefix(tags, "MAINPID=")) && | |
3294 | (s->state == SERVICE_START || | |
3295 | s->state == SERVICE_START_POST || | |
3296 | s->state == SERVICE_RUNNING || | |
3297 | s->state == SERVICE_RELOAD)) { | |
8c47c732 | 3298 | |
5925dd3c | 3299 | if (parse_pid(e + 8, &pid) < 0) |
92abbefb | 3300 | log_warning("Failed to parse notification message %s", e); |
8c47c732 | 3301 | else { |
ac155bb8 | 3302 | log_debug("%s: got %s", u->id, e); |
5925dd3c | 3303 | service_set_main_pid(s, pid); |
8c47c732 LP |
3304 | } |
3305 | } | |
3306 | ||
3307 | /* Interpret READY= */ | |
3308 | if (s->type == SERVICE_NOTIFY && | |
3309 | s->state == SERVICE_START && | |
3310 | strv_find(tags, "READY=1")) { | |
ac155bb8 | 3311 | log_debug("%s: got READY=1", u->id); |
8c47c732 LP |
3312 | |
3313 | service_enter_start_post(s); | |
3314 | } | |
3315 | ||
3316 | /* Interpret STATUS= */ | |
7f110ff9 LP |
3317 | e = strv_find_prefix(tags, "STATUS="); |
3318 | if (e) { | |
8c47c732 LP |
3319 | char *t; |
3320 | ||
3a2776bc | 3321 | if (e[7]) { |
7f110ff9 LP |
3322 | |
3323 | if (!utf8_is_valid(e+7)) { | |
3324 | log_warning("Status message in notification is not UTF-8 clean."); | |
3325 | return; | |
3326 | } | |
3327 | ||
3328 | t = strdup(e+7); | |
3329 | if (!t) { | |
3a2776bc LP |
3330 | log_error("Failed to allocate string."); |
3331 | return; | |
3332 | } | |
3333 | ||
ac155bb8 | 3334 | log_debug("%s: got %s", u->id, e); |
8c47c732 | 3335 | |
3a2776bc LP |
3336 | free(s->status_text); |
3337 | s->status_text = t; | |
3338 | } else { | |
3339 | free(s->status_text); | |
3340 | s->status_text = NULL; | |
3341 | } | |
8c47c732 | 3342 | |
8c47c732 | 3343 | } |
a6927d7f MO |
3344 | if (strv_find(tags, "WATCHDOG=1")) { |
3345 | log_debug("%s: got WATCHDOG=1", u->id); | |
3346 | service_reset_watchdog(s); | |
3347 | } | |
c4e2ceae LP |
3348 | |
3349 | /* Notify clients about changed status or main pid */ | |
3350 | unit_add_to_dbus_queue(u); | |
8c47c732 LP |
3351 | } |
3352 | ||
07459bb6 | 3353 | #ifdef HAVE_SYSV_COMPAT |
de3910a3 FC |
3354 | |
3355 | #ifdef TARGET_SUSE | |
3356 | static void sysv_facility_in_insserv_conf(Manager *mgr) { | |
3357 | FILE *f=NULL; | |
3358 | int r; | |
3359 | ||
3360 | if (!(f = fopen("/etc/insserv.conf", "re"))) { | |
3361 | r = errno == ENOENT ? 0 : -errno; | |
3362 | goto finish; | |
3363 | } | |
3364 | ||
3365 | while (!feof(f)) { | |
3366 | char l[LINE_MAX], *t; | |
3367 | char **parsed = NULL; | |
3368 | ||
3369 | if (!fgets(l, sizeof(l), f)) { | |
3370 | if (feof(f)) | |
3371 | break; | |
3372 | ||
3373 | r = -errno; | |
3374 | log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r)); | |
3375 | goto finish; | |
3376 | } | |
3377 | ||
3378 | t = strstrip(l); | |
3379 | if (*t != '$' && *t != '<') | |
3380 | continue; | |
3381 | ||
3382 | parsed = strv_split(t,WHITESPACE); | |
3383 | /* we ignore <interactive>, not used, equivalent to X-Interactive */ | |
3384 | if (parsed && !startswith_no_case (parsed[0], "<interactive>")) { | |
3385 | char *facility; | |
3386 | Unit *u; | |
3387 | if (sysv_translate_facility(parsed[0], NULL, &facility) < 0) | |
3388 | continue; | |
ac155bb8 | 3389 | if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) { |
de3910a3 FC |
3390 | UnitDependency e; |
3391 | char *dep = NULL, *name, **j; | |
3392 | ||
3393 | STRV_FOREACH (j, parsed+1) { | |
3394 | if (*j[0]=='+') { | |
3395 | e = UNIT_WANTS; | |
3396 | name = *j+1; | |
3397 | } | |
3398 | else { | |
3399 | e = UNIT_REQUIRES; | |
3400 | name = *j; | |
3401 | } | |
3402 | if (sysv_translate_facility(name, NULL, &dep) < 0) | |
3403 | continue; | |
3404 | ||
3405 | r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true); | |
3406 | free(dep); | |
3407 | } | |
3408 | } | |
3409 | free(facility); | |
3410 | } | |
3411 | strv_free(parsed); | |
3412 | } | |
3413 | finish: | |
3414 | if (f) | |
3415 | fclose(f); | |
3416 | ||
3417 | } | |
3418 | #endif | |
3419 | ||
2c4104f0 | 3420 | static int service_enumerate(Manager *m) { |
2c4104f0 LP |
3421 | char **p; |
3422 | unsigned i; | |
3423 | DIR *d = NULL; | |
3424 | char *path = NULL, *fpath = NULL, *name = NULL; | |
c68364b7 LP |
3425 | Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL; |
3426 | Unit *service; | |
3427 | Iterator j; | |
2c4104f0 LP |
3428 | int r; |
3429 | ||
3430 | assert(m); | |
3431 | ||
67445f4e | 3432 | if (m->running_as != SYSTEMD_SYSTEM) |
b1bc08e5 LP |
3433 | return 0; |
3434 | ||
c68364b7 LP |
3435 | zero(runlevel_services); |
3436 | ||
84e3543e | 3437 | STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path) |
09cd1ab1 | 3438 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) { |
2c4104f0 LP |
3439 | struct dirent *de; |
3440 | ||
3441 | free(path); | |
b7def684 | 3442 | path = strjoin(*p, "/", rcnd_table[i].path, NULL); |
70132bd0 | 3443 | if (!path) { |
2c4104f0 LP |
3444 | r = -ENOMEM; |
3445 | goto finish; | |
3446 | } | |
3447 | ||
3448 | if (d) | |
3449 | closedir(d); | |
3450 | ||
3451 | if (!(d = opendir(path))) { | |
3452 | if (errno != ENOENT) | |
3453 | log_warning("opendir() failed on %s: %s", path, strerror(errno)); | |
3454 | ||
3455 | continue; | |
3456 | } | |
3457 | ||
3458 | while ((de = readdir(d))) { | |
db06e3b6 | 3459 | int a, b; |
2c4104f0 LP |
3460 | |
3461 | if (ignore_file(de->d_name)) | |
3462 | continue; | |
3463 | ||
3464 | if (de->d_name[0] != 'S' && de->d_name[0] != 'K') | |
3465 | continue; | |
3466 | ||
3467 | if (strlen(de->d_name) < 4) | |
3468 | continue; | |
3469 | ||
db06e3b6 LP |
3470 | a = undecchar(de->d_name[1]); |
3471 | b = undecchar(de->d_name[2]); | |
3472 | ||
3473 | if (a < 0 || b < 0) | |
3474 | continue; | |
3475 | ||
2c4104f0 | 3476 | free(fpath); |
b7def684 | 3477 | fpath = strjoin(path, "/", de->d_name, NULL); |
8ea913b2 | 3478 | if (!fpath) { |
2c4104f0 LP |
3479 | r = -ENOMEM; |
3480 | goto finish; | |
3481 | } | |
3482 | ||
3483 | if (access(fpath, X_OK) < 0) { | |
3484 | ||
3485 | if (errno != ENOENT) | |
3486 | log_warning("access() failed on %s: %s", fpath, strerror(errno)); | |
3487 | ||
3488 | continue; | |
3489 | } | |
3490 | ||
3491 | free(name); | |
b7ccee3c | 3492 | if (!(name = sysv_translate_name(de->d_name + 3))) { |
2c4104f0 LP |
3493 | r = -ENOMEM; |
3494 | goto finish; | |
3495 | } | |
3496 | ||
398ef8ba | 3497 | if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) { |
fbe9f3a9 LP |
3498 | log_warning("Failed to prepare unit %s: %s", name, strerror(-r)); |
3499 | continue; | |
3500 | } | |
2c4104f0 | 3501 | |
c68364b7 LP |
3502 | if (de->d_name[0] == 'S') { |
3503 | ||
f73d93a4 | 3504 | if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) { |
ea87ca5a LP |
3505 | SERVICE(service)->sysv_start_priority_from_rcnd = |
3506 | MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd); | |
db06e3b6 | 3507 | |
c68364b7 | 3508 | SERVICE(service)->sysv_enabled = true; |
f73d93a4 | 3509 | } |
db06e3b6 | 3510 | |
c68364b7 LP |
3511 | if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0) |
3512 | goto finish; | |
2c4104f0 | 3513 | |
c68364b7 | 3514 | if ((r = set_put(runlevel_services[i], service)) < 0) |
2c4104f0 | 3515 | goto finish; |
23a177ef | 3516 | |
fc5df99e LP |
3517 | } else if (de->d_name[0] == 'K' && |
3518 | (rcnd_table[i].type == RUNLEVEL_DOWN || | |
3519 | rcnd_table[i].type == RUNLEVEL_SYSINIT)) { | |
6542952f | 3520 | |
c68364b7 LP |
3521 | if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0) |
3522 | goto finish; | |
3523 | ||
3524 | if ((r = set_put(shutdown_services, service)) < 0) | |
2c4104f0 LP |
3525 | goto finish; |
3526 | } | |
3527 | } | |
3528 | } | |
3529 | ||
c68364b7 LP |
3530 | /* Now we loaded all stubs and are aware of the lowest |
3531 | start-up priority for all services, not let's actually load | |
3532 | the services, this will also tell us which services are | |
3533 | actually native now */ | |
3534 | manager_dispatch_load_queue(m); | |
3535 | ||
3536 | /* If this is a native service, rely on native ways to pull in | |
3537 | * a service, don't pull it in via sysv rcN.d links. */ | |
3538 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) | |
3539 | SET_FOREACH(service, runlevel_services[i], j) { | |
3540 | service = unit_follow_merge(service); | |
3541 | ||
ac155bb8 | 3542 | if (service->fragment_path) |
c68364b7 LP |
3543 | continue; |
3544 | ||
3545 | if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0) | |
3546 | goto finish; | |
3547 | } | |
3548 | ||
3549 | /* We honour K links only for halt/reboot. For the normal | |
3550 | * runlevels we assume the stop jobs will be implicitly added | |
35b8ca3a | 3551 | * by the core logic. Also, we don't really distinguish here |
c68364b7 LP |
3552 | * between the runlevels 0 and 6 and just add them to the |
3553 | * special shutdown target. On SUSE the boot.d/ runlevel is | |
3554 | * also used for shutdown, so we add links for that too to the | |
3555 | * shutdown target.*/ | |
3556 | SET_FOREACH(service, shutdown_services, j) { | |
3557 | service = unit_follow_merge(service); | |
3558 | ||
ac155bb8 | 3559 | if (service->fragment_path) |
c68364b7 LP |
3560 | continue; |
3561 | ||
ead8e478 | 3562 | if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0) |
c68364b7 LP |
3563 | goto finish; |
3564 | } | |
3565 | ||
2c4104f0 LP |
3566 | r = 0; |
3567 | ||
de3910a3 | 3568 | #ifdef TARGET_SUSE |
3a111838 | 3569 | sysv_facility_in_insserv_conf (m); |
de3910a3 FC |
3570 | #endif |
3571 | ||
2c4104f0 LP |
3572 | finish: |
3573 | free(path); | |
3574 | free(fpath); | |
3575 | free(name); | |
fbe9f3a9 | 3576 | |
c68364b7 LP |
3577 | for (i = 0; i < ELEMENTSOF(rcnd_table); i++) |
3578 | set_free(runlevel_services[i]); | |
3579 | set_free(shutdown_services); | |
3580 | ||
fbe9f3a9 LP |
3581 | if (d) |
3582 | closedir(d); | |
2c4104f0 LP |
3583 | |
3584 | return r; | |
3585 | } | |
07459bb6 | 3586 | #endif |
2c4104f0 | 3587 | |
05e343b7 LP |
3588 | static void service_bus_name_owner_change( |
3589 | Unit *u, | |
3590 | const char *name, | |
3591 | const char *old_owner, | |
3592 | const char *new_owner) { | |
3593 | ||
3594 | Service *s = SERVICE(u); | |
3595 | ||
3596 | assert(s); | |
3597 | assert(name); | |
3598 | ||
3599 | assert(streq(s->bus_name, name)); | |
3600 | assert(old_owner || new_owner); | |
3601 | ||
3602 | if (old_owner && new_owner) | |
ac155bb8 | 3603 | log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner); |
05e343b7 | 3604 | else if (old_owner) |
ac155bb8 | 3605 | log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner); |
05e343b7 | 3606 | else |
ac155bb8 | 3607 | log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner); |
05e343b7 LP |
3608 | |
3609 | s->bus_name_good = !!new_owner; | |
3610 | ||
3611 | if (s->type == SERVICE_DBUS) { | |
3612 | ||
3613 | /* service_enter_running() will figure out what to | |
3614 | * do */ | |
3615 | if (s->state == SERVICE_RUNNING) | |
f42806df | 3616 | service_enter_running(s, SERVICE_SUCCESS); |
05e343b7 LP |
3617 | else if (s->state == SERVICE_START && new_owner) |
3618 | service_enter_start_post(s); | |
3619 | ||
3620 | } else if (new_owner && | |
3621 | s->main_pid <= 0 && | |
3622 | (s->state == SERVICE_START || | |
3623 | s->state == SERVICE_START_POST || | |
3624 | s->state == SERVICE_RUNNING || | |
3625 | s->state == SERVICE_RELOAD)) { | |
3626 | ||
3627 | /* Try to acquire PID from bus service */ | |
3628 | log_debug("Trying to acquire PID from D-Bus name..."); | |
3629 | ||
ac155bb8 | 3630 | bus_query_pid(u->manager, name); |
05e343b7 LP |
3631 | } |
3632 | } | |
3633 | ||
3634 | static void service_bus_query_pid_done( | |
3635 | Unit *u, | |
3636 | const char *name, | |
3637 | pid_t pid) { | |
3638 | ||
3639 | Service *s = SERVICE(u); | |
3640 | ||
3641 | assert(s); | |
3642 | assert(name); | |
3643 | ||
ac155bb8 | 3644 | log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid); |
05e343b7 LP |
3645 | |
3646 | if (s->main_pid <= 0 && | |
3647 | (s->state == SERVICE_START || | |
3648 | s->state == SERVICE_START_POST || | |
3649 | s->state == SERVICE_RUNNING || | |
3650 | s->state == SERVICE_RELOAD)) | |
5925dd3c | 3651 | service_set_main_pid(s, pid); |
05e343b7 LP |
3652 | } |
3653 | ||
6cf6bbc2 | 3654 | int service_set_socket_fd(Service *s, int fd, Socket *sock) { |
57020a3a | 3655 | |
4f2d528d LP |
3656 | assert(s); |
3657 | assert(fd >= 0); | |
3658 | ||
3659 | /* This is called by the socket code when instantiating a new | |
3660 | * service for a stream socket and the socket needs to be | |
3661 | * configured. */ | |
3662 | ||
1124fe6f | 3663 | if (UNIT(s)->load_state != UNIT_LOADED) |
4f2d528d LP |
3664 | return -EINVAL; |
3665 | ||
3666 | if (s->socket_fd >= 0) | |
3667 | return -EBUSY; | |
3668 | ||
3669 | if (s->state != SERVICE_DEAD) | |
3670 | return -EAGAIN; | |
3671 | ||
3672 | s->socket_fd = fd; | |
701cc384 | 3673 | s->got_socket_fd = true; |
6cf6bbc2 | 3674 | |
57020a3a LP |
3675 | unit_ref_set(&s->accept_socket, UNIT(sock)); |
3676 | ||
3677 | return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false); | |
4f2d528d LP |
3678 | } |
3679 | ||
fdf20a31 | 3680 | static void service_reset_failed(Unit *u) { |
5632e374 LP |
3681 | Service *s = SERVICE(u); |
3682 | ||
3683 | assert(s); | |
3684 | ||
fdf20a31 | 3685 | if (s->state == SERVICE_FAILED) |
5632e374 LP |
3686 | service_set_state(s, SERVICE_DEAD); |
3687 | ||
f42806df LP |
3688 | s->result = SERVICE_SUCCESS; |
3689 | s->reload_result = SERVICE_SUCCESS; | |
451b34cc LP |
3690 | |
3691 | RATELIMIT_RESET(s->start_limit); | |
5632e374 LP |
3692 | } |
3693 | ||
c74f17d9 | 3694 | static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) { |
8a0867d6 LP |
3695 | Service *s = SERVICE(u); |
3696 | int r = 0; | |
3697 | Set *pid_set = NULL; | |
3698 | ||
3699 | assert(s); | |
3700 | ||
3701 | if (s->main_pid <= 0 && who == KILL_MAIN) { | |
3702 | dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill"); | |
a17204af | 3703 | return -ESRCH; |
8a0867d6 LP |
3704 | } |
3705 | ||
3706 | if (s->control_pid <= 0 && who == KILL_CONTROL) { | |
3707 | dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill"); | |
a17204af | 3708 | return -ESRCH; |
8a0867d6 LP |
3709 | } |
3710 | ||
3611581e LP |
3711 | if (who == KILL_CONTROL || who == KILL_ALL) |
3712 | if (s->control_pid > 0) | |
3713 | if (kill(s->control_pid, signo) < 0) | |
3714 | r = -errno; | |
8a0867d6 | 3715 | |
3611581e LP |
3716 | if (who == KILL_MAIN || who == KILL_ALL) |
3717 | if (s->main_pid > 0) | |
3718 | if (kill(s->main_pid, signo) < 0) | |
3719 | r = -errno; | |
8a0867d6 | 3720 | |
c74f17d9 | 3721 | if (who == KILL_ALL) { |
8a0867d6 LP |
3722 | int q; |
3723 | ||
c74f17d9 LP |
3724 | pid_set = set_new(trivial_hash_func, trivial_compare_func); |
3725 | if (!pid_set) | |
8a0867d6 LP |
3726 | return -ENOMEM; |
3727 | ||
3728 | /* Exclude the control/main pid from being killed via the cgroup */ | |
c74f17d9 LP |
3729 | if (s->control_pid > 0) { |
3730 | q = set_put(pid_set, LONG_TO_PTR(s->control_pid)); | |
3731 | if (q < 0) { | |
8a0867d6 LP |
3732 | r = q; |
3733 | goto finish; | |
3734 | } | |
c74f17d9 | 3735 | } |
8a0867d6 | 3736 | |
c74f17d9 LP |
3737 | if (s->main_pid > 0) { |
3738 | q = set_put(pid_set, LONG_TO_PTR(s->main_pid)); | |
3739 | if (q < 0) { | |
8a0867d6 LP |
3740 | r = q; |
3741 | goto finish; | |
3742 | } | |
c74f17d9 LP |
3743 | } |
3744 | ||
88f3e0c9 | 3745 | q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL); |
c74f17d9 LP |
3746 | if (q < 0 && q != -EAGAIN && q != -ESRCH && q != -ENOENT) |
3747 | r = q; | |
8a0867d6 LP |
3748 | } |
3749 | ||
3750 | finish: | |
3751 | if (pid_set) | |
3752 | set_free(pid_set); | |
3753 | ||
3754 | return r; | |
3755 | } | |
3756 | ||
94f04347 LP |
3757 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { |
3758 | [SERVICE_DEAD] = "dead", | |
3759 | [SERVICE_START_PRE] = "start-pre", | |
3760 | [SERVICE_START] = "start", | |
3761 | [SERVICE_START_POST] = "start-post", | |
3762 | [SERVICE_RUNNING] = "running", | |
80876c20 | 3763 | [SERVICE_EXITED] = "exited", |
94f04347 LP |
3764 | [SERVICE_RELOAD] = "reload", |
3765 | [SERVICE_STOP] = "stop", | |
3766 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
3767 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
3768 | [SERVICE_STOP_POST] = "stop-post", | |
3769 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
3770 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
fdf20a31 | 3771 | [SERVICE_FAILED] = "failed", |
94f04347 LP |
3772 | [SERVICE_AUTO_RESTART] = "auto-restart", |
3773 | }; | |
3774 | ||
3775 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
3776 | ||
3777 | static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { | |
525ee6f4 LP |
3778 | [SERVICE_RESTART_NO] = "no", |
3779 | [SERVICE_RESTART_ON_SUCCESS] = "on-success", | |
50caaedb LP |
3780 | [SERVICE_RESTART_ON_FAILURE] = "on-failure", |
3781 | [SERVICE_RESTART_ON_ABORT] = "on-abort", | |
3782 | [SERVICE_RESTART_ALWAYS] = "always" | |
94f04347 LP |
3783 | }; |
3784 | ||
3785 | DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart); | |
3786 | ||
3787 | static const char* const service_type_table[_SERVICE_TYPE_MAX] = { | |
94f04347 | 3788 | [SERVICE_SIMPLE] = "simple", |
0d624a78 | 3789 | [SERVICE_FORKING] = "forking", |
34e9ba66 | 3790 | [SERVICE_ONESHOT] = "oneshot", |
8c47c732 | 3791 | [SERVICE_DBUS] = "dbus", |
f2b68789 LP |
3792 | [SERVICE_NOTIFY] = "notify", |
3793 | [SERVICE_IDLE] = "idle" | |
94f04347 LP |
3794 | }; |
3795 | ||
3796 | DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType); | |
3797 | ||
e537352b | 3798 | static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = { |
94f04347 LP |
3799 | [SERVICE_EXEC_START_PRE] = "ExecStartPre", |
3800 | [SERVICE_EXEC_START] = "ExecStart", | |
3801 | [SERVICE_EXEC_START_POST] = "ExecStartPost", | |
3802 | [SERVICE_EXEC_RELOAD] = "ExecReload", | |
3803 | [SERVICE_EXEC_STOP] = "ExecStop", | |
3804 | [SERVICE_EXEC_STOP_POST] = "ExecStopPost", | |
3805 | }; | |
3806 | ||
3807 | DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand); | |
3808 | ||
c952c6ec LP |
3809 | static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = { |
3810 | [NOTIFY_NONE] = "none", | |
3811 | [NOTIFY_MAIN] = "main", | |
3812 | [NOTIFY_ALL] = "all" | |
3813 | }; | |
3814 | ||
3815 | DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess); | |
3816 | ||
f42806df LP |
3817 | static const char* const service_result_table[_SERVICE_RESULT_MAX] = { |
3818 | [SERVICE_SUCCESS] = "success", | |
3819 | [SERVICE_FAILURE_RESOURCES] = "resources", | |
3820 | [SERVICE_FAILURE_TIMEOUT] = "timeout", | |
3821 | [SERVICE_FAILURE_EXIT_CODE] = "exit-code", | |
3822 | [SERVICE_FAILURE_SIGNAL] = "signal", | |
bb242b7b | 3823 | [SERVICE_FAILURE_CORE_DUMP] = "core-dump", |
8d1b002a LP |
3824 | [SERVICE_FAILURE_WATCHDOG] = "watchdog", |
3825 | [SERVICE_FAILURE_START_LIMIT] = "start-limit" | |
f42806df LP |
3826 | }; |
3827 | ||
3828 | DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); | |
3829 | ||
4b939747 MO |
3830 | static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = { |
3831 | [SERVICE_START_LIMIT_NONE] = "none", | |
3832 | [SERVICE_START_LIMIT_REBOOT] = "reboot", | |
3833 | [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force", | |
3834 | [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate" | |
3835 | }; | |
3836 | DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction); | |
3837 | ||
87f0e418 | 3838 | const UnitVTable service_vtable = { |
7d17cfbc | 3839 | .object_size = sizeof(Service), |
3ef63c31 LP |
3840 | .exec_context_offset = offsetof(Service, exec_context), |
3841 | ||
f975e971 LP |
3842 | .sections = |
3843 | "Unit\0" | |
3844 | "Service\0" | |
3845 | "Install\0", | |
5cb5a6ff | 3846 | |
034c6ed7 LP |
3847 | .init = service_init, |
3848 | .done = service_done, | |
a16e1123 LP |
3849 | .load = service_load, |
3850 | ||
3851 | .coldplug = service_coldplug, | |
034c6ed7 | 3852 | |
5cb5a6ff LP |
3853 | .dump = service_dump, |
3854 | ||
3855 | .start = service_start, | |
3856 | .stop = service_stop, | |
3857 | .reload = service_reload, | |
3858 | ||
034c6ed7 LP |
3859 | .can_reload = service_can_reload, |
3860 | ||
8a0867d6 LP |
3861 | .kill = service_kill, |
3862 | ||
a16e1123 LP |
3863 | .serialize = service_serialize, |
3864 | .deserialize_item = service_deserialize_item, | |
3865 | ||
5cb5a6ff | 3866 | .active_state = service_active_state, |
10a94420 | 3867 | .sub_state_to_string = service_sub_state_to_string, |
5cb5a6ff | 3868 | |
701cc384 LP |
3869 | .check_gc = service_check_gc, |
3870 | .check_snapshot = service_check_snapshot, | |
3871 | ||
034c6ed7 LP |
3872 | .sigchld_event = service_sigchld_event, |
3873 | .timer_event = service_timer_event, | |
3a111838 | 3874 | .fd_event = service_fd_event, |
2c4104f0 | 3875 | |
fdf20a31 | 3876 | .reset_failed = service_reset_failed, |
5632e374 | 3877 | |
8e274523 | 3878 | .cgroup_notify_empty = service_cgroup_notify_event, |
8c47c732 | 3879 | .notify_message = service_notify_message, |
8e274523 | 3880 | |
05e343b7 LP |
3881 | .bus_name_owner_change = service_bus_name_owner_change, |
3882 | .bus_query_pid_done = service_bus_query_pid_done, | |
3883 | ||
c4e2ceae | 3884 | .bus_interface = "org.freedesktop.systemd1.Service", |
4139c1b2 | 3885 | .bus_message_handler = bus_service_message_handler, |
c4e2ceae | 3886 | .bus_invalidating_properties = bus_service_invalidating_properties, |
4139c1b2 | 3887 | |
07459bb6 | 3888 | #ifdef HAVE_SYSV_COMPAT |
c6918296 | 3889 | .enumerate = service_enumerate, |
07459bb6 | 3890 | #endif |
c6918296 MS |
3891 | .status_message_formats = { |
3892 | .starting_stopping = { | |
3893 | [0] = "Starting %s...", | |
3894 | [1] = "Stopping %s...", | |
3895 | }, | |
3896 | .finished_start_job = { | |
3897 | [JOB_DONE] = "Started %s.", | |
3898 | [JOB_FAILED] = "Failed to start %s.", | |
3899 | [JOB_DEPENDENCY] = "Dependency failed for %s.", | |
3900 | [JOB_TIMEOUT] = "Timed out starting %s.", | |
3901 | }, | |
3902 | .finished_stop_job = { | |
3903 | [JOB_DONE] = "Stopped %s.", | |
3904 | [JOB_FAILED] = "Stopped (with error) %s.", | |
3905 | [JOB_TIMEOUT] = "Timed out stopping %s.", | |
3906 | }, | |
3907 | }, | |
5cb5a6ff | 3908 | }; |