1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
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
11 (at your option) any later version.
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
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include <sys/reboot.h>
31 #include "load-fragment.h"
32 #include "load-dropin.h"
35 #include "unit-name.h"
36 #include "unit-printf.h"
37 #include "dbus-service.h"
39 #include "bus-errors.h"
40 #include "exit-status.h"
42 #include "path-util.h"
46 #ifdef HAVE_SYSV_COMPAT
48 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
50 typedef enum RunlevelType {
58 const RunlevelType type;
60 /* Standard SysV runlevels for start-up */
61 { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP },
62 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP },
63 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP },
64 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP },
65 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP },
67 /* Standard SysV runlevels for shutdown */
68 { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
69 { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
71 /* Note that the order here matters, as we read the
72 directories in this order, and we want to make sure that
73 sysv_start_priority is known when we first load the
74 unit. And that value we only know from S links. Hence
75 UP must be read before DOWN */
78 #define RUNLEVELS_UP "12345"
81 static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
82 [SERVICE_DEAD] = UNIT_INACTIVE,
83 [SERVICE_START_PRE] = UNIT_ACTIVATING,
84 [SERVICE_START] = UNIT_ACTIVATING,
85 [SERVICE_START_POST] = UNIT_ACTIVATING,
86 [SERVICE_RUNNING] = UNIT_ACTIVE,
87 [SERVICE_EXITED] = UNIT_ACTIVE,
88 [SERVICE_RELOAD] = UNIT_RELOADING,
89 [SERVICE_STOP] = UNIT_DEACTIVATING,
90 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
91 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
92 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
93 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
94 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
95 [SERVICE_FAILED] = UNIT_FAILED,
96 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
99 /* For Type=idle we never want to delay any other jobs, hence we
100 * consider idle jobs active as soon as we start working on them */
101 static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = {
102 [SERVICE_DEAD] = UNIT_INACTIVE,
103 [SERVICE_START_PRE] = UNIT_ACTIVE,
104 [SERVICE_START] = UNIT_ACTIVE,
105 [SERVICE_START_POST] = UNIT_ACTIVE,
106 [SERVICE_RUNNING] = UNIT_ACTIVE,
107 [SERVICE_EXITED] = UNIT_ACTIVE,
108 [SERVICE_RELOAD] = UNIT_RELOADING,
109 [SERVICE_STOP] = UNIT_DEACTIVATING,
110 [SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
111 [SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
112 [SERVICE_STOP_POST] = UNIT_DEACTIVATING,
113 [SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
114 [SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
115 [SERVICE_FAILED] = UNIT_FAILED,
116 [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
119 static void service_init(Unit *u) {
120 Service *s = SERVICE(u);
123 assert(u->load_state == UNIT_STUB);
125 s->timeout_start_usec = DEFAULT_TIMEOUT_USEC;
126 s->timeout_stop_usec = DEFAULT_TIMEOUT_USEC;
127 s->restart_usec = DEFAULT_RESTART_USEC;
128 s->type = _SERVICE_TYPE_INVALID;
130 s->watchdog_watch.type = WATCH_INVALID;
132 s->timer_watch.type = WATCH_INVALID;
133 #ifdef HAVE_SYSV_COMPAT
134 s->sysv_start_priority = -1;
135 s->sysv_start_priority_from_rcnd = -1;
138 s->guess_main_pid = true;
140 exec_context_init(&s->exec_context);
141 kill_context_init(&s->kill_context);
143 RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
145 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
148 static void service_unwatch_control_pid(Service *s) {
151 if (s->control_pid <= 0)
154 unit_unwatch_pid(UNIT(s), s->control_pid);
158 static void service_unwatch_main_pid(Service *s) {
161 if (s->main_pid <= 0)
164 unit_unwatch_pid(UNIT(s), s->main_pid);
168 static void service_unwatch_pid_file(Service *s) {
169 if (!s->pid_file_pathspec)
172 log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
173 path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
174 path_spec_done(s->pid_file_pathspec);
175 free(s->pid_file_pathspec);
176 s->pid_file_pathspec = NULL;
179 static int service_set_main_pid(Service *s, pid_t pid) {
191 s->main_pid_known = true;
193 if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
194 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
195 UNIT(s)->id, (unsigned long) pid);
197 s->main_pid_alien = true;
199 s->main_pid_alien = false;
201 exec_status_start(&s->main_exec_status, pid);
206 static void service_close_socket_fd(Service *s) {
209 if (s->socket_fd < 0)
212 close_nointr_nofail(s->socket_fd);
216 static void service_connection_unref(Service *s) {
219 if (!UNIT_DEREF(s->accept_socket))
222 socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket)));
223 unit_ref_unset(&s->accept_socket);
226 static void service_stop_watchdog(Service *s) {
229 unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
230 s->watchdog_timestamp.realtime = 0;
231 s->watchdog_timestamp.monotonic = 0;
234 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart);
236 static void service_handle_watchdog(Service *s) {
242 if (s->watchdog_usec == 0)
245 offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
246 if (offset >= s->watchdog_usec) {
247 log_error("%s watchdog timeout!", UNIT(s)->id);
248 service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true);
252 r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch);
254 log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
257 static void service_reset_watchdog(Service *s) {
260 dual_timestamp_get(&s->watchdog_timestamp);
261 service_handle_watchdog(s);
264 static void service_done(Unit *u) {
265 Service *s = SERVICE(u);
272 #ifdef HAVE_SYSV_COMPAT
273 free(s->sysv_runlevels);
274 s->sysv_runlevels = NULL;
277 free(s->status_text);
278 s->status_text = NULL;
280 exec_context_done(&s->exec_context);
281 exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
282 s->control_command = NULL;
283 s->main_command = NULL;
285 set_free(s->restart_ignore_status.code);
286 s->restart_ignore_status.code = NULL;
287 set_free(s->restart_ignore_status.signal);
288 s->restart_ignore_status.signal = NULL;
290 set_free(s->success_status.code);
291 s->success_status.code = NULL;
292 set_free(s->success_status.signal);
293 s->success_status.signal = NULL;
295 /* This will leak a process, but at least no memory or any of
297 service_unwatch_main_pid(s);
298 service_unwatch_control_pid(s);
299 service_unwatch_pid_file(s);
302 unit_unwatch_bus_name(u, s->bus_name);
307 service_close_socket_fd(s);
308 service_connection_unref(s);
310 unit_ref_unset(&s->accept_socket);
312 service_stop_watchdog(s);
314 unit_unwatch_timer(u, &s->timer_watch);
317 #ifdef HAVE_SYSV_COMPAT
318 static char *sysv_translate_name(const char *name) {
321 if (!(r = new(char, strlen(name) + sizeof(".service"))))
324 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
325 if (endswith(name, ".sh"))
326 /* Drop Debian-style .sh suffix */
327 strcpy(stpcpy(r, name) - 3, ".service");
329 #ifdef TARGET_FRUGALWARE
330 if (startswith(name, "rc."))
331 /* Drop Frugalware-style rc. prefix */
332 strcpy(stpcpy(r, name + 3), ".service");
335 /* Normal init scripts */
336 strcpy(stpcpy(r, name), ".service");
341 static int sysv_translate_facility(const char *name, const char *filename, char **_r) {
343 /* We silently ignore the $ prefix here. According to the LSB
344 * spec it simply indicates whether something is a
345 * standardized name or a distribution-specific one. Since we
346 * just follow what already exists and do not introduce new
347 * uses or names we don't care who introduced a new name. */
349 static const char * const table[] = {
350 /* LSB defined facilities */
351 "local_fs", SPECIAL_LOCAL_FS_TARGET,
352 #if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
354 /* Due to unfortunate name selection in Mandriva,
355 * $network is provided by network-up which is ordered
356 * after network which actually starts interfaces.
357 * To break the loop, just ignore it */
358 "network", SPECIAL_NETWORK_TARGET,
360 "named", SPECIAL_NSS_LOOKUP_TARGET,
361 "portmap", SPECIAL_RPCBIND_TARGET,
362 "remote_fs", SPECIAL_REMOTE_FS_TARGET,
363 "syslog", SPECIAL_SYSLOG_TARGET,
364 "time", SPECIAL_TIME_SYNC_TARGET,
366 /* common extensions */
367 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
368 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE,
371 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
372 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
376 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET,
387 n = *name == '$' ? name + 1 : name;
389 for (i = 0; i < ELEMENTSOF(table); i += 2) {
391 if (!streq(table[i], n))
397 if (!(r = strdup(table[i+1])))
403 /* If we don't know this name, fallback heuristics to figure
404 * out whether something is a target or a service alias. */
407 if (!unit_prefix_is_valid(n))
410 /* Facilities starting with $ are most likely targets */
411 r = unit_name_build(n, NULL, ".target");
412 } else if (filename && streq(name, filename))
413 /* Names equaling the file name of the services are redundant */
416 /* Everything else we assume to be normal service names */
417 r = sysv_translate_name(n);
428 static int sysv_fix_order(Service *s) {
434 if (s->sysv_start_priority < 0)
437 /* For each pair of services where at least one lacks a LSB
438 * header, we use the start priority value to order things. */
440 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
443 bool special_s, special_t;
450 if (UNIT(t)->load_state != UNIT_LOADED)
453 if (t->sysv_start_priority < 0)
456 /* If both units have modern headers we don't care
457 * about the priorities */
458 if ((UNIT(s)->fragment_path || s->sysv_has_lsb) &&
459 (UNIT(t)->fragment_path || t->sysv_has_lsb))
462 special_s = s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels);
463 special_t = t->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, t->sysv_runlevels);
465 if (special_t && !special_s)
467 else if (special_s && !special_t)
469 else if (t->sysv_start_priority < s->sysv_start_priority)
471 else if (t->sysv_start_priority > s->sysv_start_priority)
476 /* FIXME: Maybe we should compare the name here lexicographically? */
478 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
485 static ExecCommand *exec_command_new(const char *path, const char *arg1) {
488 if (!(c = new0(ExecCommand, 1)))
491 if (!(c->path = strdup(path))) {
496 if (!(c->argv = strv_new(path, arg1, NULL))) {
505 static int sysv_exec_commands(Service *s, const bool supports_reload) {
510 assert(UNIT(s)->source_path);
512 c = exec_command_new(UNIT(s)->source_path, "start");
515 exec_command_append_list(s->exec_command+SERVICE_EXEC_START, c);
517 c = exec_command_new(UNIT(s)->source_path, "stop");
520 exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c);
522 if (supports_reload) {
523 c = exec_command_new(UNIT(s)->source_path, "reload");
526 exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c);
532 static bool usage_contains_reload(const char *line) {
533 return (strcasestr(line, "{reload|") ||
534 strcasestr(line, "{reload}") ||
535 strcasestr(line, "{reload\"") ||
536 strcasestr(line, "|reload|") ||
537 strcasestr(line, "|reload}") ||
538 strcasestr(line, "|reload\""));
541 static int service_load_sysv_path(Service *s, const char *path) {
553 char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description;
555 bool supports_reload = false;
562 f = fopen(path, "re");
564 r = errno == ENOENT ? 0 : -errno;
568 if (fstat(fileno(f), &st) < 0) {
573 free(u->source_path);
574 u->source_path = strdup(path);
575 if (!u->source_path) {
579 u->source_mtime = timespec_load(&st.st_mtim);
581 if (null_or_empty(&st)) {
582 u->load_state = UNIT_MASKED;
590 char l[LINE_MAX], *t;
592 if (!fgets(l, sizeof(l), f)) {
597 log_error("Failed to read configuration file '%s': %s", path, strerror(-r));
605 /* Try to figure out whether this init script supports
606 * the reload operation. This heuristic looks for
607 * "Usage" lines which include the reload option. */
608 if ( state == USAGE_CONTINUATION ||
609 (state == NORMAL && strcasestr(t, "usage"))) {
610 if (usage_contains_reload(t)) {
611 supports_reload = true;
613 } else if (t[strlen(t)-1] == '\\')
614 state = USAGE_CONTINUATION;
622 if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) {
624 s->sysv_has_lsb = true;
628 if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) {
634 t += strspn(t, WHITESPACE);
636 if (state == NORMAL) {
638 /* Try to parse Red Hat style chkconfig headers */
640 if (startswith_no_case(t, "chkconfig:")) {
642 char runlevels[16], *k;
646 if (sscanf(t+10, "%15s %i %*i",
648 &start_priority) != 2) {
650 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
654 /* A start priority gathered from the
655 * symlink farms is preferred over the
656 * data from the LSB header. */
657 if (start_priority < 0 || start_priority > 99)
658 log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line);
660 s->sysv_start_priority = start_priority;
662 char_array_0(runlevels);
663 k = delete_chars(runlevels, WHITESPACE "-");
668 if (!(d = strdup(k))) {
673 free(s->sysv_runlevels);
674 s->sysv_runlevels = d;
677 } else if (startswith_no_case(t, "description:")) {
679 size_t k = strlen(t);
683 if (t[k-1] == '\\') {
688 if ((j = strstrip(t+12)) && *j) {
689 if (!(d = strdup(j))) {
696 free(chkconfig_description);
697 chkconfig_description = d;
699 } else if (startswith_no_case(t, "pidfile:")) {
706 if (!path_is_absolute(fn)) {
707 log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line);
711 if (!(fn = strdup(fn))) {
720 } else if (state == DESCRIPTION) {
722 /* Try to parse Red Hat style description
725 size_t k = strlen(t);
733 if ((j = strstrip(t)) && *j) {
736 if (chkconfig_description)
737 d = strjoin(chkconfig_description, " ", j, NULL);
746 free(chkconfig_description);
747 chkconfig_description = d;
750 } else if (state == LSB || state == LSB_DESCRIPTION) {
752 if (startswith_no_case(t, "Provides:")) {
758 FOREACH_WORD_QUOTED(w, z, t+9, i) {
761 if (!(n = strndup(w, z))) {
766 r = sysv_translate_facility(n, path_get_file_name(path), &m);
775 if (unit_name_to_type(m) == UNIT_SERVICE)
776 r = unit_add_name(u, m);
783 * indication that the
785 * now available. This
788 * targets do NOT pull
791 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true);
794 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r));
799 } else if (startswith_no_case(t, "Required-Start:") ||
800 startswith_no_case(t, "Should-Start:") ||
801 startswith_no_case(t, "X-Start-Before:") ||
802 startswith_no_case(t, "X-Start-After:")) {
808 FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) {
811 if (!(n = strndup(w, z))) {
816 r = sysv_translate_facility(n, path_get_file_name(path), &m);
819 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r));
829 r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true);
832 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r));
836 } else if (startswith_no_case(t, "Default-Start:")) {
841 k = delete_chars(t+14, WHITESPACE "-");
844 if (!(d = strdup(k))) {
849 free(s->sysv_runlevels);
850 s->sysv_runlevels = d;
853 } else if (startswith_no_case(t, "Description:")) {
856 state = LSB_DESCRIPTION;
858 if ((j = strstrip(t+12)) && *j) {
859 if (!(d = strdup(j))) {
866 free(long_description);
867 long_description = d;
869 } else if (startswith_no_case(t, "Short-Description:")) {
874 if ((j = strstrip(t+18)) && *j) {
875 if (!(d = strdup(j))) {
882 free(short_description);
883 short_description = d;
885 } else if (state == LSB_DESCRIPTION) {
887 if (startswith(l, "#\t") || startswith(l, "# ")) {
890 if ((j = strstrip(t)) && *j) {
893 if (long_description)
894 d = strjoin(long_description, " ", t, NULL);
903 free(long_description);
904 long_description = d;
913 if ((r = sysv_exec_commands(s, supports_reload)) < 0)
916 if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) {
917 /* If there a runlevels configured for this service
918 * but none of the standard ones, then we assume this
919 * is some special kind of service (which might be
920 * needed for early boot) and don't create any links
923 UNIT(s)->default_dependencies = false;
925 /* Don't timeout special services during boot (like fsck) */
926 s->timeout_start_usec = 0;
927 s->timeout_stop_usec = 0;
929 s->timeout_start_usec = DEFAULT_SYSV_TIMEOUT_USEC;
930 s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC;
933 /* Special setting for all SysV services */
934 s->type = SERVICE_FORKING;
935 s->remain_after_exit = !s->pid_file;
936 s->guess_main_pid = false;
937 s->restart = SERVICE_RESTART_NO;
938 s->exec_context.ignore_sigpipe = false;
939 s->kill_context.kill_mode = KILL_PROCESS;
941 /* We use the long description only if
942 * no short description is set. */
944 if (short_description)
945 description = short_description;
946 else if (chkconfig_description)
947 description = chkconfig_description;
948 else if (long_description)
949 description = long_description;
956 if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) {
964 /* The priority that has been set in /etc/rcN.d/ hierarchies
965 * takes precedence over what is stored as default in the LSB
967 if (s->sysv_start_priority_from_rcnd >= 0)
968 s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
970 u->load_state = UNIT_LOADED;
978 free(short_description);
979 free(long_description);
980 free(chkconfig_description);
985 static int service_load_sysv_name(Service *s, const char *name) {
991 /* For SysV services we strip the rc.* and *.sh
992 * prefixes/suffixes. */
993 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
994 if (endswith(name, ".sh.service"))
998 #ifdef TARGET_FRUGALWARE
999 if (startswith(name, "rc."))
1003 STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) {
1007 path = strjoin(*p, "/", name, NULL);
1011 assert(endswith(path, ".service"));
1012 path[strlen(path)-8] = 0;
1014 r = service_load_sysv_path(s, path);
1016 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
1017 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1018 /* Try Debian style *.sh source'able init scripts */
1019 strcat(path, ".sh");
1020 r = service_load_sysv_path(s, path);
1025 #ifdef TARGET_FRUGALWARE
1026 if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) {
1027 /* Try Frugalware style rc.* init scripts */
1029 path = strjoin(*p, "/rc.", name, NULL);
1033 /* Drop .service suffix */
1034 path[strlen(path)-8] = 0;
1035 r = service_load_sysv_path(s, path);
1043 if ((UNIT(s)->load_state != UNIT_STUB))
1050 static int service_load_sysv(Service *s) {
1057 /* Load service data from SysV init scripts, preferably with
1058 * LSB headers ... */
1060 if (strv_isempty(UNIT(s)->manager->lookup_paths.sysvinit_path))
1063 if ((t = UNIT(s)->id))
1064 if ((r = service_load_sysv_name(s, t)) < 0)
1067 if (UNIT(s)->load_state == UNIT_STUB)
1068 SET_FOREACH(t, UNIT(s)->names, i) {
1069 if (t == UNIT(s)->id)
1072 if ((r = service_load_sysv_name(s, t)) < 0)
1075 if (UNIT(s)->load_state != UNIT_STUB)
1083 static int fsck_fix_order(Service *s) {
1089 if (s->fsck_passno <= 0)
1092 /* For each pair of services where both have an fsck priority
1093 * we order things based on it. */
1095 LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
1104 if (UNIT(t)->load_state != UNIT_LOADED)
1107 if (t->fsck_passno <= 0)
1110 if (t->fsck_passno < s->fsck_passno)
1112 else if (t->fsck_passno > s->fsck_passno)
1117 if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
1124 static int service_verify(Service *s) {
1127 if (UNIT(s)->load_state != UNIT_LOADED)
1130 if (!s->exec_command[SERVICE_EXEC_START]) {
1131 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
1135 if (s->type != SERVICE_ONESHOT &&
1136 s->exec_command[SERVICE_EXEC_START]->command_next) {
1137 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
1141 if (s->type == SERVICE_DBUS && !s->bus_name) {
1142 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
1146 if (s->bus_name && s->type != SERVICE_DBUS)
1147 log_warning("%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
1149 if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
1150 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
1157 static int service_add_default_dependencies(Service *s) {
1162 /* Add a number of automatic dependencies useful for the
1163 * majority of services. */
1165 /* First, pull in base system */
1166 if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) {
1168 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
1171 } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) {
1173 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
1177 /* Second, activate normal shutdown */
1178 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
1181 static void service_fix_output(Service *s) {
1184 /* If nothing has been explicitly configured, patch default
1185 * output in. If input is socket/tty we avoid this however,
1186 * since in that case we want output to default to the same
1187 * place as we read input from. */
1189 if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT &&
1190 s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1191 s->exec_context.std_input == EXEC_INPUT_NULL)
1192 s->exec_context.std_error = UNIT(s)->manager->default_std_error;
1194 if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT &&
1195 s->exec_context.std_input == EXEC_INPUT_NULL)
1196 s->exec_context.std_output = UNIT(s)->manager->default_std_output;
1199 static int service_load(Unit *u) {
1201 Service *s = SERVICE(u);
1205 /* Load a .service file */
1206 if ((r = unit_load_fragment(u)) < 0)
1209 #ifdef HAVE_SYSV_COMPAT
1210 /* Load a classic init script as a fallback, if we couldn't find anything */
1211 if (u->load_state == UNIT_STUB)
1212 if ((r = service_load_sysv(s)) < 0)
1216 /* Still nothing found? Then let's give up */
1217 if (u->load_state == UNIT_STUB)
1220 /* We were able to load something, then let's add in the
1221 * dropin directories. */
1222 if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
1225 /* This is a new unit? Then let's add in some extras */
1226 if (u->load_state == UNIT_LOADED) {
1227 if (s->type == _SERVICE_TYPE_INVALID)
1228 s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE;
1230 /* Oneshot services have disabled start timeout by default */
1231 if (s->type == SERVICE_ONESHOT && !s->start_timeout_defined)
1232 s->timeout_start_usec = 0;
1234 service_fix_output(s);
1236 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
1239 if ((r = unit_add_default_cgroups(u)) < 0)
1242 #ifdef HAVE_SYSV_COMPAT
1243 if ((r = sysv_fix_order(s)) < 0)
1247 if ((r = fsck_fix_order(s)) < 0)
1251 if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
1254 if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
1255 s->notify_access = NOTIFY_MAIN;
1257 if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
1258 s->notify_access = NOTIFY_MAIN;
1260 if (s->type == SERVICE_DBUS || s->bus_name)
1261 if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
1264 if (UNIT(s)->default_dependencies)
1265 if ((r = service_add_default_dependencies(s)) < 0)
1268 r = unit_exec_context_defaults(u, &s->exec_context);
1273 return service_verify(s);
1276 static void service_dump(Unit *u, FILE *f, const char *prefix) {
1278 ServiceExecCommand c;
1279 Service *s = SERVICE(u);
1280 const char *prefix2;
1285 p2 = strappend(prefix, "\t");
1286 prefix2 = p2 ? p2 : prefix;
1289 "%sService State: %s\n"
1291 "%sReload Result: %s\n"
1292 "%sPermissionsStartOnly: %s\n"
1293 "%sRootDirectoryStartOnly: %s\n"
1294 "%sRemainAfterExit: %s\n"
1295 "%sGuessMainPID: %s\n"
1298 "%sNotifyAccess: %s\n",
1299 prefix, service_state_to_string(s->state),
1300 prefix, service_result_to_string(s->result),
1301 prefix, service_result_to_string(s->reload_result),
1302 prefix, yes_no(s->permissions_start_only),
1303 prefix, yes_no(s->root_directory_start_only),
1304 prefix, yes_no(s->remain_after_exit),
1305 prefix, yes_no(s->guess_main_pid),
1306 prefix, service_type_to_string(s->type),
1307 prefix, service_restart_to_string(s->restart),
1308 prefix, notify_access_to_string(s->notify_access));
1310 if (s->control_pid > 0)
1312 "%sControl PID: %lu\n",
1313 prefix, (unsigned long) s->control_pid);
1315 if (s->main_pid > 0)
1318 "%sMain PID Known: %s\n"
1319 "%sMain PID Alien: %s\n",
1320 prefix, (unsigned long) s->main_pid,
1321 prefix, yes_no(s->main_pid_known),
1322 prefix, yes_no(s->main_pid_alien));
1327 prefix, s->pid_file);
1332 "%sBus Name Good: %s\n",
1333 prefix, s->bus_name,
1334 prefix, yes_no(s->bus_name_good));
1336 kill_context_dump(&s->kill_context, f, prefix);
1337 exec_context_dump(&s->exec_context, f, prefix);
1339 for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
1341 if (!s->exec_command[c])
1344 fprintf(f, "%s-> %s:\n",
1345 prefix, service_exec_command_to_string(c));
1347 exec_command_dump_list(s->exec_command[c], f, prefix2);
1350 #ifdef HAVE_SYSV_COMPAT
1353 "%sSysV Init Script has LSB Header: %s\n"
1354 "%sSysVEnabled: %s\n",
1355 prefix, yes_no(s->sysv_has_lsb),
1356 prefix, yes_no(s->sysv_enabled));
1358 if (s->sysv_start_priority >= 0)
1360 "%sSysVStartPriority: %i\n",
1361 prefix, s->sysv_start_priority);
1363 if (s->sysv_runlevels)
1364 fprintf(f, "%sSysVRunLevels: %s\n",
1365 prefix, s->sysv_runlevels);
1368 if (s->fsck_passno > 0)
1370 "%sFsckPassNo: %i\n",
1371 prefix, s->fsck_passno);
1374 fprintf(f, "%sStatus Text: %s\n",
1375 prefix, s->status_text);
1380 static int service_load_pid_file(Service *s, bool may_warn) {
1390 if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
1392 log_info("PID file %s not readable (yet?) after %s.",
1393 s->pid_file, service_state_to_string(s->state));
1397 r = parse_pid(k, &pid);
1403 if (kill(pid, 0) < 0 && errno != EPERM) {
1405 log_info("PID %lu read from file %s does not exist.",
1406 (unsigned long) pid, s->pid_file);
1410 if (s->main_pid_known) {
1411 if (pid == s->main_pid)
1414 log_debug("Main PID changing: %lu -> %lu",
1415 (unsigned long) s->main_pid, (unsigned long) pid);
1416 service_unwatch_main_pid(s);
1417 s->main_pid_known = false;
1419 log_debug("Main PID loaded: %lu", (unsigned long) pid);
1421 if ((r = service_set_main_pid(s, pid)) < 0)
1424 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1425 /* FIXME: we need to do something here */
1431 static int service_search_main_pid(Service *s) {
1437 /* If we know it anyway, don't ever fallback to unreliable
1439 if (s->main_pid_known)
1442 if (!s->guess_main_pid)
1445 assert(s->main_pid <= 0);
1447 if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
1450 log_debug("Main PID guessed: %lu", (unsigned long) pid);
1451 if ((r = service_set_main_pid(s, pid)) < 0)
1454 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1455 /* FIXME: we need to do something here */
1461 static void service_notify_sockets_dead(Service *s, bool failed_permanent) {
1467 /* Notifies all our sockets when we die */
1469 if (s->socket_fd >= 0)
1472 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i)
1473 if (u->type == UNIT_SOCKET)
1474 socket_notify_service_dead(SOCKET(u), failed_permanent);
1479 static void service_set_state(Service *s, ServiceState state) {
1480 ServiceState old_state;
1481 const UnitActiveState *table;
1484 table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
1486 old_state = s->state;
1489 service_unwatch_pid_file(s);
1491 if (state != SERVICE_START_PRE &&
1492 state != SERVICE_START &&
1493 state != SERVICE_START_POST &&
1494 state != SERVICE_RELOAD &&
1495 state != SERVICE_STOP &&
1496 state != SERVICE_STOP_SIGTERM &&
1497 state != SERVICE_STOP_SIGKILL &&
1498 state != SERVICE_STOP_POST &&
1499 state != SERVICE_FINAL_SIGTERM &&
1500 state != SERVICE_FINAL_SIGKILL &&
1501 state != SERVICE_AUTO_RESTART)
1502 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1504 if (state != SERVICE_START &&
1505 state != SERVICE_START_POST &&
1506 state != SERVICE_RUNNING &&
1507 state != SERVICE_RELOAD &&
1508 state != SERVICE_STOP &&
1509 state != SERVICE_STOP_SIGTERM &&
1510 state != SERVICE_STOP_SIGKILL) {
1511 service_unwatch_main_pid(s);
1512 s->main_command = NULL;
1515 if (state != SERVICE_START_PRE &&
1516 state != SERVICE_START &&
1517 state != SERVICE_START_POST &&
1518 state != SERVICE_RELOAD &&
1519 state != SERVICE_STOP &&
1520 state != SERVICE_STOP_SIGTERM &&
1521 state != SERVICE_STOP_SIGKILL &&
1522 state != SERVICE_STOP_POST &&
1523 state != SERVICE_FINAL_SIGTERM &&
1524 state != SERVICE_FINAL_SIGKILL) {
1525 service_unwatch_control_pid(s);
1526 s->control_command = NULL;
1527 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
1530 if (state == SERVICE_DEAD ||
1531 state == SERVICE_STOP ||
1532 state == SERVICE_STOP_SIGTERM ||
1533 state == SERVICE_STOP_SIGKILL ||
1534 state == SERVICE_STOP_POST ||
1535 state == SERVICE_FINAL_SIGTERM ||
1536 state == SERVICE_FINAL_SIGKILL ||
1537 state == SERVICE_FAILED ||
1538 state == SERVICE_AUTO_RESTART)
1539 service_notify_sockets_dead(s, false);
1541 if (state != SERVICE_START_PRE &&
1542 state != SERVICE_START &&
1543 state != SERVICE_START_POST &&
1544 state != SERVICE_RUNNING &&
1545 state != SERVICE_RELOAD &&
1546 state != SERVICE_STOP &&
1547 state != SERVICE_STOP_SIGTERM &&
1548 state != SERVICE_STOP_SIGKILL &&
1549 state != SERVICE_STOP_POST &&
1550 state != SERVICE_FINAL_SIGTERM &&
1551 state != SERVICE_FINAL_SIGKILL &&
1552 !(state == SERVICE_DEAD && UNIT(s)->job)) {
1553 service_close_socket_fd(s);
1554 service_connection_unref(s);
1557 if (state == SERVICE_STOP)
1558 service_stop_watchdog(s);
1560 /* For the inactive states unit_notify() will trim the cgroup,
1561 * but for exit we have to do that ourselves... */
1562 if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
1563 cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true);
1565 if (old_state != state)
1566 log_struct(LOG_DEBUG,
1567 "UNIT=%s", UNIT(s)->id,
1568 "MESSAGE=%s changed %s -> %s", UNIT(s)->id,
1569 service_state_to_string(old_state),
1570 service_state_to_string(state),
1573 unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
1574 s->reload_result = SERVICE_SUCCESS;
1577 static int service_coldplug(Unit *u) {
1578 Service *s = SERVICE(u);
1582 assert(s->state == SERVICE_DEAD);
1584 if (s->deserialized_state != s->state) {
1586 if (s->deserialized_state == SERVICE_START_PRE ||
1587 s->deserialized_state == SERVICE_START ||
1588 s->deserialized_state == SERVICE_START_POST ||
1589 s->deserialized_state == SERVICE_RELOAD ||
1590 s->deserialized_state == SERVICE_STOP ||
1591 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1592 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1593 s->deserialized_state == SERVICE_STOP_POST ||
1594 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1595 s->deserialized_state == SERVICE_FINAL_SIGKILL ||
1596 s->deserialized_state == SERVICE_AUTO_RESTART) {
1597 if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
1600 k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
1602 if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0)
1607 if ((s->deserialized_state == SERVICE_START &&
1608 (s->type == SERVICE_FORKING ||
1609 s->type == SERVICE_DBUS ||
1610 s->type == SERVICE_ONESHOT ||
1611 s->type == SERVICE_NOTIFY)) ||
1612 s->deserialized_state == SERVICE_START_POST ||
1613 s->deserialized_state == SERVICE_RUNNING ||
1614 s->deserialized_state == SERVICE_RELOAD ||
1615 s->deserialized_state == SERVICE_STOP ||
1616 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1617 s->deserialized_state == SERVICE_STOP_SIGKILL)
1618 if (s->main_pid > 0)
1619 if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
1622 if (s->deserialized_state == SERVICE_START_PRE ||
1623 s->deserialized_state == SERVICE_START ||
1624 s->deserialized_state == SERVICE_START_POST ||
1625 s->deserialized_state == SERVICE_RELOAD ||
1626 s->deserialized_state == SERVICE_STOP ||
1627 s->deserialized_state == SERVICE_STOP_SIGTERM ||
1628 s->deserialized_state == SERVICE_STOP_SIGKILL ||
1629 s->deserialized_state == SERVICE_STOP_POST ||
1630 s->deserialized_state == SERVICE_FINAL_SIGTERM ||
1631 s->deserialized_state == SERVICE_FINAL_SIGKILL)
1632 if (s->control_pid > 0)
1633 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
1636 if (s->deserialized_state == SERVICE_START_POST ||
1637 s->deserialized_state == SERVICE_RUNNING)
1638 service_handle_watchdog(s);
1640 service_set_state(s, s->deserialized_state);
1645 static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
1649 unsigned rn_fds = 0;
1656 if (s->socket_fd >= 0)
1659 SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) {
1664 if (u->type != UNIT_SOCKET)
1669 if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
1681 if (!(t = new(int, rn_fds+cn_fds))) {
1687 memcpy(t, rfds, rn_fds * sizeof(int));
1688 memcpy(t+rn_fds, cfds, cn_fds * sizeof(int));
1693 rn_fds = rn_fds+cn_fds;
1708 static int service_spawn(
1713 bool apply_permissions,
1715 bool apply_tty_stdin,
1716 bool set_notify_socket,
1722 int *fds = NULL, *fdsbuf = NULL;
1723 unsigned n_fds = 0, n_env = 0;
1724 char **argv = NULL, **final_env = NULL, **our_env = NULL;
1731 s->exec_context.std_input == EXEC_INPUT_SOCKET ||
1732 s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
1733 s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
1735 if (s->socket_fd >= 0) {
1736 fds = &s->socket_fd;
1739 if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
1746 if (timeout && s->timeout_start_usec) {
1747 r = unit_watch_timer(UNIT(s), s->timeout_start_usec, &s->timer_watch);
1751 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1753 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
1758 our_env = new0(char*, 5);
1764 if (set_notify_socket)
1765 if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0) {
1770 if (s->main_pid > 0)
1771 if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
1776 if (s->watchdog_usec > 0)
1777 if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
1782 if (s->meta.manager->running_as != SYSTEMD_SYSTEM)
1783 if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1788 final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
1802 UNIT(s)->manager->confirm_spawn,
1803 UNIT(s)->cgroup_bondings,
1804 UNIT(s)->cgroup_attributes,
1805 is_control ? "control" : NULL,
1807 s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
1813 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
1814 /* FIXME: we need to do something here */
1820 strv_free(final_env);
1830 strv_free(final_env);
1833 unit_unwatch_timer(UNIT(s), &s->timer_watch);
1838 static int main_pid_good(Service *s) {
1841 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1844 /* If we know the pid file, then lets just check if it is
1846 if (s->main_pid_known) {
1848 /* If it's an alien child let's check if it is still
1850 if (s->main_pid_alien)
1851 return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
1853 /* .. otherwise assume we'll get a SIGCHLD for it,
1854 * which we really should wait for to collect exit
1855 * status and code */
1856 return s->main_pid > 0;
1859 /* We don't know the pid */
1863 static int control_pid_good(Service *s) {
1866 return s->control_pid > 0;
1869 static int cgroup_good(Service *s) {
1874 if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
1880 static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
1884 if (f != SERVICE_SUCCESS)
1887 service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
1889 if (allow_restart &&
1890 !s->forbid_restart &&
1891 (s->restart == SERVICE_RESTART_ALWAYS ||
1892 (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) ||
1893 (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) ||
1894 (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL ||
1895 s->result == SERVICE_FAILURE_CORE_DUMP))) &&
1896 (s->result != SERVICE_FAILURE_EXIT_CODE ||
1897 !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
1898 (s->result != SERVICE_FAILURE_SIGNAL ||
1899 !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
1902 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
1906 service_set_state(s, SERVICE_AUTO_RESTART);
1909 s->forbid_restart = false;
1914 log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r));
1915 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
1918 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
1920 static void service_enter_stop_post(Service *s, ServiceResult f) {
1924 if (f != SERVICE_SUCCESS)
1927 service_unwatch_control_pid(s);
1929 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
1930 s->control_command_id = SERVICE_EXEC_STOP_POST;
1932 r = service_spawn(s,
1936 !s->permissions_start_only,
1937 !s->root_directory_start_only,
1946 service_set_state(s, SERVICE_STOP_POST);
1948 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
1953 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
1954 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
1957 static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
1959 Set *pid_set = NULL;
1960 bool wait_for_exit = false;
1964 if (f != SERVICE_SUCCESS)
1967 if (s->kill_context.kill_mode != KILL_NONE) {
1968 int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->kill_context.kill_signal : SIGKILL;
1970 if (s->main_pid > 0) {
1971 if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
1972 log_warning("Failed to kill main process %li: %m", (long) s->main_pid);
1974 wait_for_exit = !s->main_pid_alien;
1977 if (s->control_pid > 0) {
1978 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
1979 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1981 wait_for_exit = true;
1984 if (s->kill_context.kill_mode == KILL_CONTROL_GROUP) {
1986 pid_set = set_new(trivial_hash_func, trivial_compare_func);
1992 /* Exclude the main/control pids from being killed via the cgroup */
1993 if (s->main_pid > 0)
1994 if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
1997 if (s->control_pid > 0)
1998 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
2001 r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
2003 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
2004 log_warning("Failed to kill control group: %s", strerror(-r));
2006 wait_for_exit = true;
2013 if (wait_for_exit) {
2014 if (s->timeout_stop_usec > 0) {
2015 r = unit_watch_timer(UNIT(s), s->timeout_stop_usec, &s->timer_watch);
2020 service_set_state(s, state);
2021 } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2022 service_enter_stop_post(s, SERVICE_SUCCESS);
2024 service_enter_dead(s, SERVICE_SUCCESS, true);
2029 log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
2031 if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
2032 service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
2034 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2040 static void service_enter_stop(Service *s, ServiceResult f) {
2045 if (f != SERVICE_SUCCESS)
2048 service_unwatch_control_pid(s);
2050 if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
2051 s->control_command_id = SERVICE_EXEC_STOP;
2053 r = service_spawn(s,
2057 !s->permissions_start_only,
2058 !s->root_directory_start_only,
2066 service_set_state(s, SERVICE_STOP);
2068 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2073 log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r));
2074 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2077 static void service_enter_running(Service *s, ServiceResult f) {
2078 int main_pid_ok, cgroup_ok;
2081 if (f != SERVICE_SUCCESS)
2084 main_pid_ok = main_pid_good(s);
2085 cgroup_ok = cgroup_good(s);
2087 if ((main_pid_ok > 0 || (main_pid_ok < 0 && cgroup_ok != 0)) &&
2088 (s->bus_name_good || s->type != SERVICE_DBUS))
2089 service_set_state(s, SERVICE_RUNNING);
2090 else if (s->remain_after_exit)
2091 service_set_state(s, SERVICE_EXITED);
2093 service_enter_stop(s, SERVICE_SUCCESS);
2096 static void service_enter_start_post(Service *s) {
2100 service_unwatch_control_pid(s);
2102 if (s->watchdog_usec > 0)
2103 service_reset_watchdog(s);
2105 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
2106 s->control_command_id = SERVICE_EXEC_START_POST;
2108 r = service_spawn(s,
2112 !s->permissions_start_only,
2113 !s->root_directory_start_only,
2121 service_set_state(s, SERVICE_START_POST);
2123 service_enter_running(s, SERVICE_SUCCESS);
2128 log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
2129 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2132 static void service_enter_start(Service *s) {
2139 assert(s->exec_command[SERVICE_EXEC_START]);
2140 assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT);
2142 if (s->type == SERVICE_FORKING)
2143 service_unwatch_control_pid(s);
2145 service_unwatch_main_pid(s);
2147 /* We want to ensure that nobody leaks processes from
2148 * START_PRE here, so let's go on a killing spree, People
2149 * should not spawn long running processes from START_PRE. */
2150 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2152 if (s->type == SERVICE_FORKING) {
2153 s->control_command_id = SERVICE_EXEC_START;
2154 c = s->control_command = s->exec_command[SERVICE_EXEC_START];
2156 s->main_command = NULL;
2158 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
2159 s->control_command = NULL;
2161 c = s->main_command = s->exec_command[SERVICE_EXEC_START];
2164 r = service_spawn(s,
2166 s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
2171 s->notify_access != NOTIFY_NONE,
2177 if (s->type == SERVICE_SIMPLE || s->type == SERVICE_IDLE) {
2178 /* For simple services we immediately start
2179 * the START_POST binaries. */
2181 service_set_main_pid(s, pid);
2182 service_enter_start_post(s);
2184 } else if (s->type == SERVICE_FORKING) {
2186 /* For forking services we wait until the start
2187 * process exited. */
2189 s->control_pid = pid;
2190 service_set_state(s, SERVICE_START);
2192 } else if (s->type == SERVICE_ONESHOT ||
2193 s->type == SERVICE_DBUS ||
2194 s->type == SERVICE_NOTIFY) {
2196 /* For oneshot services we wait until the start
2197 * process exited, too, but it is our main process. */
2199 /* For D-Bus services we know the main pid right away,
2200 * but wait for the bus name to appear on the
2201 * bus. Notify services are similar. */
2203 service_set_main_pid(s, pid);
2204 service_set_state(s, SERVICE_START);
2206 assert_not_reached("Unknown service type");
2211 log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r));
2212 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2215 static void service_enter_start_pre(Service *s) {
2220 service_unwatch_control_pid(s);
2222 if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
2224 /* Before we start anything, let's clear up what might
2225 * be left from previous runs. */
2226 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2228 s->control_command_id = SERVICE_EXEC_START_PRE;
2230 r = service_spawn(s,
2234 !s->permissions_start_only,
2235 !s->root_directory_start_only,
2243 service_set_state(s, SERVICE_START_PRE);
2245 service_enter_start(s);
2250 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
2251 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2254 static void service_enter_restart(Service *s) {
2259 dbus_error_init(&error);
2261 if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
2262 /* Don't restart things if we are going down anyway */
2263 log_info("Stop job pending for unit, delaying automatic restart.");
2265 r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch);
2272 /* Any units that are bound to this service must also be
2273 * restarted. We use JOB_RESTART (instead of the more obvious
2274 * JOB_START) here so that those dependency jobs will be added
2276 r = manager_add_job(UNIT(s)->manager, JOB_RESTART, UNIT(s), JOB_FAIL, false, &error, NULL);
2280 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2281 * it will be canceled as part of the service_stop() call that
2282 * is executed as part of JOB_RESTART. */
2284 log_debug("%s scheduled restart job.", UNIT(s)->id);
2288 log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r));
2289 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
2291 dbus_error_free(&error);
2294 static void service_enter_reload(Service *s) {
2299 service_unwatch_control_pid(s);
2301 if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
2302 s->control_command_id = SERVICE_EXEC_RELOAD;
2304 r = service_spawn(s,
2308 !s->permissions_start_only,
2309 !s->root_directory_start_only,
2317 service_set_state(s, SERVICE_RELOAD);
2319 service_enter_running(s, SERVICE_SUCCESS);
2324 log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r));
2325 s->reload_result = SERVICE_FAILURE_RESOURCES;
2326 service_enter_running(s, SERVICE_SUCCESS);
2329 static void service_run_next_control(Service *s) {
2333 assert(s->control_command);
2334 assert(s->control_command->command_next);
2336 assert(s->control_command_id != SERVICE_EXEC_START);
2338 s->control_command = s->control_command->command_next;
2339 service_unwatch_control_pid(s);
2341 r = service_spawn(s,
2345 !s->permissions_start_only,
2346 !s->root_directory_start_only,
2347 s->control_command_id == SERVICE_EXEC_START_PRE ||
2348 s->control_command_id == SERVICE_EXEC_STOP_POST,
2358 log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r));
2360 if (s->state == SERVICE_START_PRE)
2361 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
2362 else if (s->state == SERVICE_STOP)
2363 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2364 else if (s->state == SERVICE_STOP_POST)
2365 service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
2366 else if (s->state == SERVICE_RELOAD) {
2367 s->reload_result = SERVICE_FAILURE_RESOURCES;
2368 service_enter_running(s, SERVICE_SUCCESS);
2370 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2373 static void service_run_next_main(Service *s) {
2378 assert(s->main_command);
2379 assert(s->main_command->command_next);
2380 assert(s->type == SERVICE_ONESHOT);
2382 s->main_command = s->main_command->command_next;
2383 service_unwatch_main_pid(s);
2385 r = service_spawn(s,
2392 s->notify_access != NOTIFY_NONE,
2398 service_set_main_pid(s, pid);
2403 log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r));
2404 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
2407 static int service_start_limit_test(Service *s) {
2410 if (ratelimit_test(&s->start_limit))
2413 switch (s->start_limit_action) {
2415 case SERVICE_START_LIMIT_NONE:
2416 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id);
2419 case SERVICE_START_LIMIT_REBOOT: {
2423 dbus_error_init(&error);
2425 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id);
2427 r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
2429 log_error("Failed to reboot: %s.", bus_error(&error, r));
2430 dbus_error_free(&error);
2436 case SERVICE_START_LIMIT_REBOOT_FORCE:
2437 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
2438 UNIT(s)->manager->exit_code = MANAGER_REBOOT;
2441 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
2442 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
2444 reboot(RB_AUTOBOOT);
2448 log_error("start limit action=%i", s->start_limit_action);
2449 assert_not_reached("Unknown StartLimitAction.");
2455 static int service_start(Unit *u) {
2456 Service *s = SERVICE(u);
2461 /* We cannot fulfill this request right now, try again later
2463 if (s->state == SERVICE_STOP ||
2464 s->state == SERVICE_STOP_SIGTERM ||
2465 s->state == SERVICE_STOP_SIGKILL ||
2466 s->state == SERVICE_STOP_POST ||
2467 s->state == SERVICE_FINAL_SIGTERM ||
2468 s->state == SERVICE_FINAL_SIGKILL)
2471 /* Already on it! */
2472 if (s->state == SERVICE_START_PRE ||
2473 s->state == SERVICE_START ||
2474 s->state == SERVICE_START_POST)
2477 /* A service that will be restarted must be stopped first to
2478 * trigger BindsTo and/or OnFailure dependencies. If a user
2479 * does not want to wait for the holdoff time to elapse, the
2480 * service should be manually restarted, not started. We
2481 * simply return EAGAIN here, so that any start jobs stay
2482 * queued, and assume that the auto restart timer will
2483 * eventually trigger the restart. */
2484 if (s->state == SERVICE_AUTO_RESTART)
2487 assert(s->state == SERVICE_DEAD || s->state == SERVICE_FAILED);
2489 /* Make sure we don't enter a busy loop of some kind. */
2490 r = service_start_limit_test(s);
2492 service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false);
2496 s->result = SERVICE_SUCCESS;
2497 s->reload_result = SERVICE_SUCCESS;
2498 s->main_pid_known = false;
2499 s->main_pid_alien = false;
2500 s->forbid_restart = false;
2502 service_enter_start_pre(s);
2506 static int service_stop(Unit *u) {
2507 Service *s = SERVICE(u);
2511 /* Don't create restart jobs from here. */
2512 s->forbid_restart = true;
2515 if (s->state == SERVICE_STOP ||
2516 s->state == SERVICE_STOP_SIGTERM ||
2517 s->state == SERVICE_STOP_SIGKILL ||
2518 s->state == SERVICE_STOP_POST ||
2519 s->state == SERVICE_FINAL_SIGTERM ||
2520 s->state == SERVICE_FINAL_SIGKILL)
2523 /* A restart will be scheduled or is in progress. */
2524 if (s->state == SERVICE_AUTO_RESTART) {
2525 service_set_state(s, SERVICE_DEAD);
2529 /* If there's already something running we go directly into
2531 if (s->state == SERVICE_START_PRE ||
2532 s->state == SERVICE_START ||
2533 s->state == SERVICE_START_POST ||
2534 s->state == SERVICE_RELOAD) {
2535 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_SUCCESS);
2539 assert(s->state == SERVICE_RUNNING ||
2540 s->state == SERVICE_EXITED);
2542 service_enter_stop(s, SERVICE_SUCCESS);
2546 static int service_reload(Unit *u) {
2547 Service *s = SERVICE(u);
2551 assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED);
2553 service_enter_reload(s);
2557 static bool service_can_reload(Unit *u) {
2558 Service *s = SERVICE(u);
2562 return !!s->exec_command[SERVICE_EXEC_RELOAD];
2565 static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
2566 Service *s = SERVICE(u);
2572 unit_serialize_item(u, f, "state", service_state_to_string(s->state));
2573 unit_serialize_item(u, f, "result", service_result_to_string(s->result));
2574 unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
2576 if (s->control_pid > 0)
2577 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
2579 if (s->main_pid_known && s->main_pid > 0)
2580 unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
2582 unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
2585 unit_serialize_item(u, f, "status-text", s->status_text);
2587 /* FIXME: There's a minor uncleanliness here: if there are
2588 * multiple commands attached here, we will start from the
2589 * first one again */
2590 if (s->control_command_id >= 0)
2591 unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
2593 if (s->socket_fd >= 0) {
2596 if ((copy = fdset_put_dup(fds, s->socket_fd)) < 0)
2599 unit_serialize_item_format(u, f, "socket-fd", "%i", copy);
2602 if (s->main_exec_status.pid > 0) {
2603 unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid);
2604 dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
2605 dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
2607 if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
2608 unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
2609 unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
2612 if (dual_timestamp_is_set(&s->watchdog_timestamp))
2613 dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
2618 static int service_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
2619 Service *s = SERVICE(u);
2626 if (streq(key, "state")) {
2629 if ((state = service_state_from_string(value)) < 0)
2630 log_debug("Failed to parse state value %s", value);
2632 s->deserialized_state = state;
2633 } else if (streq(key, "result")) {
2636 f = service_result_from_string(value);
2638 log_debug("Failed to parse result value %s", value);
2639 else if (f != SERVICE_SUCCESS)
2642 } else if (streq(key, "reload-result")) {
2645 f = service_result_from_string(value);
2647 log_debug("Failed to parse reload result value %s", value);
2648 else if (f != SERVICE_SUCCESS)
2649 s->reload_result = f;
2651 } else if (streq(key, "control-pid")) {
2654 if (parse_pid(value, &pid) < 0)
2655 log_debug("Failed to parse control-pid value %s", value);
2657 s->control_pid = pid;
2658 } else if (streq(key, "main-pid")) {
2661 if (parse_pid(value, &pid) < 0)
2662 log_debug("Failed to parse main-pid value %s", value);
2664 service_set_main_pid(s, (pid_t) pid);
2665 } else if (streq(key, "main-pid-known")) {
2668 if ((b = parse_boolean(value)) < 0)
2669 log_debug("Failed to parse main-pid-known value %s", value);
2671 s->main_pid_known = b;
2672 } else if (streq(key, "status-text")) {
2675 if ((t = strdup(value))) {
2676 free(s->status_text);
2680 } else if (streq(key, "control-command")) {
2681 ServiceExecCommand id;
2683 if ((id = service_exec_command_from_string(value)) < 0)
2684 log_debug("Failed to parse exec-command value %s", value);
2686 s->control_command_id = id;
2687 s->control_command = s->exec_command[id];
2689 } else if (streq(key, "socket-fd")) {
2692 if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
2693 log_debug("Failed to parse socket-fd value %s", value);
2696 if (s->socket_fd >= 0)
2697 close_nointr_nofail(s->socket_fd);
2698 s->socket_fd = fdset_remove(fds, fd);
2700 } else if (streq(key, "main-exec-status-pid")) {
2703 if (parse_pid(value, &pid) < 0)
2704 log_debug("Failed to parse main-exec-status-pid value %s", value);
2706 s->main_exec_status.pid = pid;
2707 } else if (streq(key, "main-exec-status-code")) {
2710 if (safe_atoi(value, &i) < 0)
2711 log_debug("Failed to parse main-exec-status-code value %s", value);
2713 s->main_exec_status.code = i;
2714 } else if (streq(key, "main-exec-status-status")) {
2717 if (safe_atoi(value, &i) < 0)
2718 log_debug("Failed to parse main-exec-status-status value %s", value);
2720 s->main_exec_status.status = i;
2721 } else if (streq(key, "main-exec-status-start"))
2722 dual_timestamp_deserialize(value, &s->main_exec_status.start_timestamp);
2723 else if (streq(key, "main-exec-status-exit"))
2724 dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
2725 else if (streq(key, "watchdog-timestamp"))
2726 dual_timestamp_deserialize(value, &s->watchdog_timestamp);
2728 log_debug("Unknown serialization key '%s'", key);
2733 static UnitActiveState service_active_state(Unit *u) {
2734 const UnitActiveState *table;
2738 table = SERVICE(u)->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
2740 return table[SERVICE(u)->state];
2743 static const char *service_sub_state_to_string(Unit *u) {
2746 return service_state_to_string(SERVICE(u)->state);
2749 static bool service_check_gc(Unit *u) {
2750 Service *s = SERVICE(u);
2754 /* Never clean up services that still have a process around,
2755 * even if the service is formally dead. */
2756 if (cgroup_good(s) > 0 ||
2757 main_pid_good(s) > 0 ||
2758 control_pid_good(s) > 0)
2761 #ifdef HAVE_SYSV_COMPAT
2769 static bool service_check_snapshot(Unit *u) {
2770 Service *s = SERVICE(u);
2774 return !s->got_socket_fd;
2777 static int service_retry_pid_file(Service *s) {
2780 assert(s->pid_file);
2781 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2783 r = service_load_pid_file(s, false);
2787 service_unwatch_pid_file(s);
2789 service_enter_running(s, SERVICE_SUCCESS);
2793 static int service_watch_pid_file(Service *s) {
2796 log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path);
2797 r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
2801 /* the pidfile might have appeared just before we set the watch */
2802 service_retry_pid_file(s);
2806 log_error("Failed to set a watch for %s's PID file %s: %s",
2807 UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r));
2808 service_unwatch_pid_file(s);
2812 static int service_demand_pid_file(Service *s) {
2815 assert(s->pid_file);
2816 assert(!s->pid_file_pathspec);
2818 ps = new0(PathSpec, 1);
2822 ps->path = strdup(s->pid_file);
2828 path_kill_slashes(ps->path);
2830 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2831 * keep their PID file open all the time. */
2832 ps->type = PATH_MODIFIED;
2833 ps->inotify_fd = -1;
2835 s->pid_file_pathspec = ps;
2837 return service_watch_pid_file(s);
2840 static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
2841 Service *s = SERVICE(u);
2845 assert(s->state == SERVICE_START || s->state == SERVICE_START_POST);
2846 assert(s->pid_file_pathspec);
2847 assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
2849 log_debug("inotify event for %s", u->id);
2851 if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
2854 if (service_retry_pid_file(s) == 0)
2857 if (service_watch_pid_file(s) < 0)
2862 service_unwatch_pid_file(s);
2863 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
2866 static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
2867 Service *s = SERVICE(u);
2873 if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) :
2874 is_clean_exit_lsb(code, status, &s->success_status))
2875 f = SERVICE_SUCCESS;
2876 else if (code == CLD_EXITED)
2877 f = SERVICE_FAILURE_EXIT_CODE;
2878 else if (code == CLD_KILLED)
2879 f = SERVICE_FAILURE_SIGNAL;
2880 else if (code == CLD_DUMPED)
2881 f = SERVICE_FAILURE_CORE_DUMP;
2883 assert_not_reached("Unknown code");
2885 if (s->main_pid == pid) {
2886 /* Forking services may occasionally move to a new PID.
2887 * As long as they update the PID file before exiting the old
2888 * PID, they're fine. */
2889 if (service_load_pid_file(s, false) == 0)
2893 exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status);
2895 /* If this is not a forking service than the main
2896 * process got started and hence we copy the exit
2897 * status so that it is recorded both as main and as
2898 * control process exit status */
2899 if (s->main_command) {
2900 s->main_command->exec_status = s->main_exec_status;
2902 if (s->main_command->ignore)
2903 f = SERVICE_SUCCESS;
2906 log_struct(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2907 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2908 u->id, sigchld_code_to_string(code), status,
2909 strna(code == CLD_EXITED
2910 ? exit_status_to_string(status, EXIT_STATUS_FULL)
2911 : signal_to_string(status)),
2913 "EXIT_CODE=%s", sigchld_code_to_string(code),
2914 "EXIT_STATUS=%i", status,
2917 if (f != SERVICE_SUCCESS)
2920 if (s->main_command &&
2921 s->main_command->command_next &&
2922 f == SERVICE_SUCCESS) {
2924 /* There is another command to *
2925 * execute, so let's do that. */
2927 log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state));
2928 service_run_next_main(s);
2932 /* The service exited, so the service is officially
2934 s->main_command = NULL;
2938 case SERVICE_START_POST:
2939 case SERVICE_RELOAD:
2941 /* Need to wait until the operation is
2946 if (s->type == SERVICE_ONESHOT) {
2947 /* This was our main goal, so let's go on */
2948 if (f == SERVICE_SUCCESS)
2949 service_enter_start_post(s);
2951 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
2957 case SERVICE_RUNNING:
2958 service_enter_running(s, f);
2961 case SERVICE_STOP_SIGTERM:
2962 case SERVICE_STOP_SIGKILL:
2964 if (!control_pid_good(s))
2965 service_enter_stop_post(s, f);
2967 /* If there is still a control process, wait for that first */
2971 assert_not_reached("Uh, main process died at wrong time.");
2975 } else if (s->control_pid == pid) {
2979 if (s->control_command) {
2980 exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
2982 if (s->control_command->ignore)
2983 f = SERVICE_SUCCESS;
2986 log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
2987 "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
2989 if (f != SERVICE_SUCCESS)
2992 /* Immediately get rid of the cgroup, so that the
2993 * kernel doesn't delay the cgroup empty messages for
2994 * the service cgroup any longer than necessary */
2995 cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
2997 if (s->control_command &&
2998 s->control_command->command_next &&
2999 f == SERVICE_SUCCESS) {
3001 /* There is another command to *
3002 * execute, so let's do that. */
3004 log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state));
3005 service_run_next_control(s);
3008 /* No further commands for this step, so let's
3009 * figure out what to do next */
3011 s->control_command = NULL;
3012 s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
3014 log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state));
3018 case SERVICE_START_PRE:
3019 if (f == SERVICE_SUCCESS)
3020 service_enter_start(s);
3022 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3026 if (s->type != SERVICE_FORKING)
3027 /* Maybe spurious event due to a reload that changed the type? */
3030 if (f != SERVICE_SUCCESS) {
3031 service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
3036 bool has_start_post;
3039 /* Let's try to load the pid file here if we can.
3040 * The PID file might actually be created by a START_POST
3041 * script. In that case don't worry if the loading fails. */
3043 has_start_post = !!s->exec_command[SERVICE_EXEC_START_POST];
3044 r = service_load_pid_file(s, !has_start_post);
3045 if (!has_start_post && r < 0) {
3046 r = service_demand_pid_file(s);
3047 if (r < 0 || !cgroup_good(s))
3048 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3052 service_search_main_pid(s);
3054 service_enter_start_post(s);
3057 case SERVICE_START_POST:
3058 if (f != SERVICE_SUCCESS) {
3059 service_enter_stop(s, f);
3066 r = service_load_pid_file(s, true);
3068 r = service_demand_pid_file(s);
3069 if (r < 0 || !cgroup_good(s))
3070 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3074 service_search_main_pid(s);
3076 service_enter_running(s, SERVICE_SUCCESS);
3079 case SERVICE_RELOAD:
3080 if (f == SERVICE_SUCCESS) {
3081 service_load_pid_file(s, true);
3082 service_search_main_pid(s);
3085 s->reload_result = f;
3086 service_enter_running(s, SERVICE_SUCCESS);
3090 service_enter_signal(s, SERVICE_STOP_SIGTERM, f);
3093 case SERVICE_STOP_SIGTERM:
3094 case SERVICE_STOP_SIGKILL:
3095 if (main_pid_good(s) <= 0)
3096 service_enter_stop_post(s, f);
3098 /* If there is still a service
3099 * process around, wait until
3100 * that one quit, too */
3103 case SERVICE_STOP_POST:
3104 case SERVICE_FINAL_SIGTERM:
3105 case SERVICE_FINAL_SIGKILL:
3106 service_enter_dead(s, f, true);
3110 assert_not_reached("Uh, control process died at wrong time.");
3115 /* Notify clients about changed exit status */
3116 unit_add_to_dbus_queue(u);
3119 static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
3120 Service *s = SERVICE(u);
3123 assert(elapsed == 1);
3125 if (w == &s->watchdog_watch) {
3126 service_handle_watchdog(s);
3130 assert(w == &s->timer_watch);
3134 case SERVICE_START_PRE:
3136 log_warning("%s operation timed out. Terminating.", u->id);
3137 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3140 case SERVICE_START_POST:
3141 log_warning("%s operation timed out. Stopping.", u->id);
3142 service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
3145 case SERVICE_RELOAD:
3146 log_warning("%s operation timed out. Stopping.", u->id);
3147 s->reload_result = SERVICE_FAILURE_TIMEOUT;
3148 service_enter_running(s, SERVICE_SUCCESS);
3152 log_warning("%s stopping timed out. Terminating.", u->id);
3153 service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3156 case SERVICE_STOP_SIGTERM:
3157 if (s->kill_context.send_sigkill) {
3158 log_warning("%s stopping timed out. Killing.", u->id);
3159 service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3161 log_warning("%s stopping timed out. Skipping SIGKILL.", u->id);
3162 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3167 case SERVICE_STOP_SIGKILL:
3168 /* Uh, we sent a SIGKILL and it is still not gone?
3169 * Must be something we cannot kill, so let's just be
3170 * weirded out and continue */
3172 log_warning("%s still around after SIGKILL. Ignoring.", u->id);
3173 service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
3176 case SERVICE_STOP_POST:
3177 log_warning("%s stopping timed out (2). Terminating.", u->id);
3178 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
3181 case SERVICE_FINAL_SIGTERM:
3182 if (s->kill_context.send_sigkill) {
3183 log_warning("%s stopping timed out (2). Killing.", u->id);
3184 service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
3186 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id);
3187 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
3192 case SERVICE_FINAL_SIGKILL:
3193 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
3194 service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
3197 case SERVICE_AUTO_RESTART:
3198 log_info("%s holdoff time over, scheduling restart.", u->id);
3199 service_enter_restart(s);
3203 assert_not_reached("Timeout at wrong time.");
3207 static void service_cgroup_notify_event(Unit *u) {
3208 Service *s = SERVICE(u);
3212 log_debug("%s: cgroup is empty", u->id);
3216 /* Waiting for SIGCHLD is usually more interesting,
3217 * because it includes return codes/signals. Which is
3218 * why we ignore the cgroup events for most cases,
3219 * except when we don't know pid which to expect the
3223 case SERVICE_START_POST:
3224 /* If we were hoping for the daemon to write its PID file,
3225 * we can give up now. */
3226 if (s->pid_file_pathspec) {
3227 log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id);
3228 service_unwatch_pid_file(s);
3229 if (s->state == SERVICE_START)
3230 service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
3232 service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
3236 case SERVICE_RUNNING:
3237 /* service_enter_running() will figure out what to do */
3238 service_enter_running(s, SERVICE_SUCCESS);
3241 case SERVICE_STOP_SIGTERM:
3242 case SERVICE_STOP_SIGKILL:
3244 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3245 service_enter_stop_post(s, SERVICE_SUCCESS);
3249 case SERVICE_FINAL_SIGTERM:
3250 case SERVICE_FINAL_SIGKILL:
3251 if (main_pid_good(s) <= 0 && !control_pid_good(s))
3252 service_enter_dead(s, SERVICE_SUCCESS, true);
3261 static void service_notify_message(Unit *u, pid_t pid, char **tags) {
3262 Service *s = SERVICE(u);
3267 if (s->notify_access == NOTIFY_NONE) {
3268 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
3269 u->id, (unsigned long) pid);
3273 if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
3274 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3275 u->id, (unsigned long) pid, (unsigned long) s->main_pid);
3279 log_debug("%s: Got message", u->id);
3281 /* Interpret MAINPID= */
3282 if ((e = strv_find_prefix(tags, "MAINPID=")) &&
3283 (s->state == SERVICE_START ||
3284 s->state == SERVICE_START_POST ||
3285 s->state == SERVICE_RUNNING ||
3286 s->state == SERVICE_RELOAD)) {
3288 if (parse_pid(e + 8, &pid) < 0)
3289 log_warning("Failed to parse notification message %s", e);
3291 log_debug("%s: got %s", u->id, e);
3292 service_set_main_pid(s, pid);
3296 /* Interpret READY= */
3297 if (s->type == SERVICE_NOTIFY &&
3298 s->state == SERVICE_START &&
3299 strv_find(tags, "READY=1")) {
3300 log_debug("%s: got READY=1", u->id);
3302 service_enter_start_post(s);
3305 /* Interpret STATUS= */
3306 e = strv_find_prefix(tags, "STATUS=");
3312 if (!utf8_is_valid(e+7)) {
3313 log_warning("Status message in notification is not UTF-8 clean.");
3319 log_error("Failed to allocate string.");
3323 log_debug("%s: got %s", u->id, e);
3325 free(s->status_text);
3328 free(s->status_text);
3329 s->status_text = NULL;
3333 if (strv_find(tags, "WATCHDOG=1")) {
3334 log_debug("%s: got WATCHDOG=1", u->id);
3335 service_reset_watchdog(s);
3338 /* Notify clients about changed status or main pid */
3339 unit_add_to_dbus_queue(u);
3342 #ifdef HAVE_SYSV_COMPAT
3345 static void sysv_facility_in_insserv_conf(Manager *mgr) {
3349 if (!(f = fopen("/etc/insserv.conf", "re"))) {
3350 r = errno == ENOENT ? 0 : -errno;
3355 char l[LINE_MAX], *t;
3356 char **parsed = NULL;
3358 if (!fgets(l, sizeof(l), f)) {
3363 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r));
3368 if (*t != '$' && *t != '<')
3371 parsed = strv_split(t,WHITESPACE);
3372 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3373 if (parsed && !startswith_no_case (parsed[0], "<interactive>")) {
3376 if (sysv_translate_facility(parsed[0], NULL, &facility) < 0)
3378 if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) {
3380 char *dep = NULL, *name, **j;
3382 STRV_FOREACH (j, parsed+1) {
3391 if (sysv_translate_facility(name, NULL, &dep) < 0)
3394 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true);
3409 static int service_enumerate(Manager *m) {
3413 char *path = NULL, *fpath = NULL, *name = NULL;
3414 Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
3421 if (m->running_as != SYSTEMD_SYSTEM)
3424 zero(runlevel_services);
3426 STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path)
3427 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) {
3431 path = strjoin(*p, "/", rcnd_table[i].path, NULL);
3440 if (!(d = opendir(path))) {
3441 if (errno != ENOENT)
3442 log_warning("opendir() failed on %s: %s", path, strerror(errno));
3447 while ((de = readdir(d))) {
3450 if (ignore_file(de->d_name))
3453 if (de->d_name[0] != 'S' && de->d_name[0] != 'K')
3456 if (strlen(de->d_name) < 4)
3459 a = undecchar(de->d_name[1]);
3460 b = undecchar(de->d_name[2]);
3466 fpath = strjoin(path, "/", de->d_name, NULL);
3472 if (access(fpath, X_OK) < 0) {
3474 if (errno != ENOENT)
3475 log_warning("access() failed on %s: %s", fpath, strerror(errno));
3481 if (!(name = sysv_translate_name(de->d_name + 3))) {
3486 if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) {
3487 log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
3491 if (de->d_name[0] == 'S') {
3493 if (rcnd_table[i].type == RUNLEVEL_UP) {
3494 SERVICE(service)->sysv_start_priority_from_rcnd =
3495 MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd);
3497 SERVICE(service)->sysv_enabled = true;
3500 if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
3503 if ((r = set_put(runlevel_services[i], service)) < 0)
3506 } else if (de->d_name[0] == 'K' &&
3507 (rcnd_table[i].type == RUNLEVEL_DOWN)) {
3509 if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
3512 if ((r = set_put(shutdown_services, service)) < 0)
3518 /* Now we loaded all stubs and are aware of the lowest
3519 start-up priority for all services, not let's actually load
3520 the services, this will also tell us which services are
3521 actually native now */
3522 manager_dispatch_load_queue(m);
3524 /* If this is a native service, rely on native ways to pull in
3525 * a service, don't pull it in via sysv rcN.d links. */
3526 for (i = 0; i < ELEMENTSOF(rcnd_table); i ++)
3527 SET_FOREACH(service, runlevel_services[i], j) {
3528 service = unit_follow_merge(service);
3530 if (service->fragment_path)
3533 if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
3537 /* We honour K links only for halt/reboot. For the normal
3538 * runlevels we assume the stop jobs will be implicitly added
3539 * by the core logic. Also, we don't really distinguish here
3540 * between the runlevels 0 and 6 and just add them to the
3541 * special shutdown target. */
3542 SET_FOREACH(service, shutdown_services, j) {
3543 service = unit_follow_merge(service);
3545 if (service->fragment_path)
3548 if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
3555 sysv_facility_in_insserv_conf (m);
3563 for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
3564 set_free(runlevel_services[i]);
3565 set_free(shutdown_services);
3574 static void service_bus_name_owner_change(
3577 const char *old_owner,
3578 const char *new_owner) {
3580 Service *s = SERVICE(u);
3585 assert(streq(s->bus_name, name));
3586 assert(old_owner || new_owner);
3588 if (old_owner && new_owner)
3589 log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner);
3591 log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner);
3593 log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner);
3595 s->bus_name_good = !!new_owner;
3597 if (s->type == SERVICE_DBUS) {
3599 /* service_enter_running() will figure out what to
3601 if (s->state == SERVICE_RUNNING)
3602 service_enter_running(s, SERVICE_SUCCESS);
3603 else if (s->state == SERVICE_START && new_owner)
3604 service_enter_start_post(s);
3606 } else if (new_owner &&
3608 (s->state == SERVICE_START ||
3609 s->state == SERVICE_START_POST ||
3610 s->state == SERVICE_RUNNING ||
3611 s->state == SERVICE_RELOAD)) {
3613 /* Try to acquire PID from bus service */
3614 log_debug("Trying to acquire PID from D-Bus name...");
3616 bus_query_pid(u->manager, name);
3620 static void service_bus_query_pid_done(
3625 Service *s = SERVICE(u);
3630 log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
3632 if (s->main_pid <= 0 &&
3633 (s->state == SERVICE_START ||
3634 s->state == SERVICE_START_POST ||
3635 s->state == SERVICE_RUNNING ||
3636 s->state == SERVICE_RELOAD))
3637 service_set_main_pid(s, pid);
3640 int service_set_socket_fd(Service *s, int fd, Socket *sock) {
3645 /* This is called by the socket code when instantiating a new
3646 * service for a stream socket and the socket needs to be
3649 if (UNIT(s)->load_state != UNIT_LOADED)
3652 if (s->socket_fd >= 0)
3655 if (s->state != SERVICE_DEAD)
3659 s->got_socket_fd = true;
3661 unit_ref_set(&s->accept_socket, UNIT(sock));
3663 return unit_add_two_dependencies(UNIT(sock), UNIT_BEFORE, UNIT_TRIGGERS, UNIT(s), false);
3666 static void service_reset_failed(Unit *u) {
3667 Service *s = SERVICE(u);
3671 if (s->state == SERVICE_FAILED)
3672 service_set_state(s, SERVICE_DEAD);
3674 s->result = SERVICE_SUCCESS;
3675 s->reload_result = SERVICE_SUCCESS;
3677 RATELIMIT_RESET(s->start_limit);
3680 static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
3681 Service *s = SERVICE(u);
3683 Set *pid_set = NULL;
3687 if (s->main_pid <= 0 && who == KILL_MAIN) {
3688 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
3692 if (s->control_pid <= 0 && who == KILL_CONTROL) {
3693 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
3697 if (who == KILL_CONTROL || who == KILL_ALL)
3698 if (s->control_pid > 0)
3699 if (kill(s->control_pid, signo) < 0)
3702 if (who == KILL_MAIN || who == KILL_ALL)
3703 if (s->main_pid > 0)
3704 if (kill(s->main_pid, signo) < 0)
3707 if (who == KILL_ALL) {
3710 pid_set = set_new(trivial_hash_func, trivial_compare_func);
3714 /* Exclude the control/main pid from being killed via the cgroup */
3715 if (s->control_pid > 0) {
3716 q = set_put(pid_set, LONG_TO_PTR(s->control_pid));
3723 if (s->main_pid > 0) {
3724 q = set_put(pid_set, LONG_TO_PTR(s->main_pid));
3731 q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL);
3732 if (q < 0 && q != -EAGAIN && q != -ESRCH && q != -ENOENT)
3743 static const char* const service_state_table[_SERVICE_STATE_MAX] = {
3744 [SERVICE_DEAD] = "dead",
3745 [SERVICE_START_PRE] = "start-pre",
3746 [SERVICE_START] = "start",
3747 [SERVICE_START_POST] = "start-post",
3748 [SERVICE_RUNNING] = "running",
3749 [SERVICE_EXITED] = "exited",
3750 [SERVICE_RELOAD] = "reload",
3751 [SERVICE_STOP] = "stop",
3752 [SERVICE_STOP_SIGTERM] = "stop-sigterm",
3753 [SERVICE_STOP_SIGKILL] = "stop-sigkill",
3754 [SERVICE_STOP_POST] = "stop-post",
3755 [SERVICE_FINAL_SIGTERM] = "final-sigterm",
3756 [SERVICE_FINAL_SIGKILL] = "final-sigkill",
3757 [SERVICE_FAILED] = "failed",
3758 [SERVICE_AUTO_RESTART] = "auto-restart",
3761 DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState);
3763 static const char* const service_restart_table[_SERVICE_RESTART_MAX] = {
3764 [SERVICE_RESTART_NO] = "no",
3765 [SERVICE_RESTART_ON_SUCCESS] = "on-success",
3766 [SERVICE_RESTART_ON_FAILURE] = "on-failure",
3767 [SERVICE_RESTART_ON_ABORT] = "on-abort",
3768 [SERVICE_RESTART_ALWAYS] = "always"
3771 DEFINE_STRING_TABLE_LOOKUP(service_restart, ServiceRestart);
3773 static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
3774 [SERVICE_SIMPLE] = "simple",
3775 [SERVICE_FORKING] = "forking",
3776 [SERVICE_ONESHOT] = "oneshot",
3777 [SERVICE_DBUS] = "dbus",
3778 [SERVICE_NOTIFY] = "notify",
3779 [SERVICE_IDLE] = "idle"
3782 DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
3784 static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
3785 [SERVICE_EXEC_START_PRE] = "ExecStartPre",
3786 [SERVICE_EXEC_START] = "ExecStart",
3787 [SERVICE_EXEC_START_POST] = "ExecStartPost",
3788 [SERVICE_EXEC_RELOAD] = "ExecReload",
3789 [SERVICE_EXEC_STOP] = "ExecStop",
3790 [SERVICE_EXEC_STOP_POST] = "ExecStopPost",
3793 DEFINE_STRING_TABLE_LOOKUP(service_exec_command, ServiceExecCommand);
3795 static const char* const notify_access_table[_NOTIFY_ACCESS_MAX] = {
3796 [NOTIFY_NONE] = "none",
3797 [NOTIFY_MAIN] = "main",
3798 [NOTIFY_ALL] = "all"
3801 DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess);
3803 static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
3804 [SERVICE_SUCCESS] = "success",
3805 [SERVICE_FAILURE_RESOURCES] = "resources",
3806 [SERVICE_FAILURE_TIMEOUT] = "timeout",
3807 [SERVICE_FAILURE_EXIT_CODE] = "exit-code",
3808 [SERVICE_FAILURE_SIGNAL] = "signal",
3809 [SERVICE_FAILURE_CORE_DUMP] = "core-dump",
3810 [SERVICE_FAILURE_WATCHDOG] = "watchdog",
3811 [SERVICE_FAILURE_START_LIMIT] = "start-limit"
3814 DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
3816 static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
3817 [SERVICE_START_LIMIT_NONE] = "none",
3818 [SERVICE_START_LIMIT_REBOOT] = "reboot",
3819 [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
3820 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
3822 DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
3824 const UnitVTable service_vtable = {
3825 .object_size = sizeof(Service),
3826 .exec_context_offset = offsetof(Service, exec_context),
3833 .init = service_init,
3834 .done = service_done,
3835 .load = service_load,
3837 .coldplug = service_coldplug,
3839 .dump = service_dump,
3841 .start = service_start,
3842 .stop = service_stop,
3843 .reload = service_reload,
3845 .can_reload = service_can_reload,
3847 .kill = service_kill,
3849 .serialize = service_serialize,
3850 .deserialize_item = service_deserialize_item,
3852 .active_state = service_active_state,
3853 .sub_state_to_string = service_sub_state_to_string,
3855 .check_gc = service_check_gc,
3856 .check_snapshot = service_check_snapshot,
3858 .sigchld_event = service_sigchld_event,
3859 .timer_event = service_timer_event,
3860 .fd_event = service_fd_event,
3862 .reset_failed = service_reset_failed,
3864 .cgroup_notify_empty = service_cgroup_notify_event,
3865 .notify_message = service_notify_message,
3867 .bus_name_owner_change = service_bus_name_owner_change,
3868 .bus_query_pid_done = service_bus_query_pid_done,
3870 .bus_interface = "org.freedesktop.systemd1.Service",
3871 .bus_message_handler = bus_service_message_handler,
3872 .bus_invalidating_properties = bus_service_invalidating_properties,
3874 #ifdef HAVE_SYSV_COMPAT
3875 .enumerate = service_enumerate,
3877 .status_message_formats = {
3878 .starting_stopping = {
3879 [0] = "Starting %s...",
3880 [1] = "Stopping %s...",
3882 .finished_start_job = {
3883 [JOB_DONE] = "Started %s.",
3884 [JOB_FAILED] = "Failed to start %s.",
3885 [JOB_DEPENDENCY] = "Dependency failed for %s.",
3886 [JOB_TIMEOUT] = "Timed out starting %s.",
3888 .finished_stop_job = {
3889 [JOB_DONE] = "Stopped %s.",
3890 [JOB_FAILED] = "Stopped (with error) %s.",
3891 [JOB_TIMEOUT] = "Timed out stopping %s.",