1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
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 General Public License as published by
10 the Free Software Foundation; either version 2 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 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
29 #include "load-fragment.h"
30 #include "load-dropin.h"
34 #define COMMENTS "#;\n"
35 #define NEWLINES "\n\r"
38 static const char * const rcnd_table
[] = {
39 "/rc0.d", SPECIAL_RUNLEVEL0_TARGET
,
40 "/rc1.d", SPECIAL_RUNLEVEL1_TARGET
,
41 "/rc2.d", SPECIAL_RUNLEVEL2_TARGET
,
42 "/rc3.d", SPECIAL_RUNLEVEL3_TARGET
,
43 "/rc4.d", SPECIAL_RUNLEVEL4_TARGET
,
44 "/rc5.d", SPECIAL_RUNLEVEL5_TARGET
,
45 "/rc6.d", SPECIAL_RUNLEVEL6_TARGET
,
46 "/boot.d", SPECIAL_BASIC_TARGET
49 static const UnitActiveState state_translation_table
[_SERVICE_STATE_MAX
] = {
50 [SERVICE_DEAD
] = UNIT_INACTIVE
,
51 [SERVICE_START_PRE
] = UNIT_ACTIVATING
,
52 [SERVICE_START
] = UNIT_ACTIVATING
,
53 [SERVICE_START_POST
] = UNIT_ACTIVATING
,
54 [SERVICE_RUNNING
] = UNIT_ACTIVE
,
55 [SERVICE_EXITED
] = UNIT_ACTIVE
,
56 [SERVICE_RELOAD
] = UNIT_ACTIVE_RELOADING
,
57 [SERVICE_STOP
] = UNIT_DEACTIVATING
,
58 [SERVICE_STOP_SIGTERM
] = UNIT_DEACTIVATING
,
59 [SERVICE_STOP_SIGKILL
] = UNIT_DEACTIVATING
,
60 [SERVICE_STOP_POST
] = UNIT_DEACTIVATING
,
61 [SERVICE_FINAL_SIGTERM
] = UNIT_DEACTIVATING
,
62 [SERVICE_FINAL_SIGKILL
] = UNIT_DEACTIVATING
,
63 [SERVICE_MAINTAINANCE
] = UNIT_INACTIVE
,
64 [SERVICE_AUTO_RESTART
] = UNIT_ACTIVATING
,
67 static void service_unwatch_control_pid(Service
*s
) {
70 if (s
->control_pid
<= 0)
73 unit_unwatch_pid(UNIT(s
), s
->control_pid
);
77 static void service_unwatch_main_pid(Service
*s
) {
83 unit_unwatch_pid(UNIT(s
), s
->main_pid
);
87 static void service_done(Unit
*u
) {
88 Service
*s
= SERVICE(u
);
98 free(s
->sysv_runlevels
);
99 s
->sysv_runlevels
= NULL
;
101 exec_context_done(&s
->exec_context
);
102 exec_command_free_array(s
->exec_command
, _SERVICE_EXEC_COMMAND_MAX
);
103 s
->control_command
= NULL
;
105 /* This will leak a process, but at least no memory or any of
107 service_unwatch_main_pid(s
);
108 service_unwatch_control_pid(s
);
110 unit_unwatch_timer(u
, &s
->timer_watch
);
113 static int sysv_translate_name(const char *name
, char **_r
) {
115 static const char * const table
[] = {
116 "$local_fs", SPECIAL_LOCAL_FS_TARGET
,
117 "$network", SPECIAL_NETWORK_TARGET
,
118 "$named", SPECIAL_NSS_LOOKUP_TARGET
,
119 "$portmap", SPECIAL_RPCBIND_TARGET
,
120 "$remote_fs", SPECIAL_REMOTE_FS_TARGET
,
121 "$syslog", SPECIAL_SYSLOG_TARGET
,
122 "$time", SPECIAL_RTC_SET_TARGET
128 for (i
= 0; i
< ELEMENTSOF(table
); i
+= 2)
129 if (streq(table
[i
], name
)) {
130 if (!(r
= strdup(table
[i
+1])))
139 if (asprintf(&r
, "%s.service", name
) < 0)
150 static int sysv_chkconfig_order(Service
*s
) {
156 if (s
->sysv_start_priority
< 0)
159 /* For each pair of services where at least one lacks a LSB
160 * header, we use the start priority value to order things. */
162 LIST_FOREACH(units_per_type
, other
, UNIT(s
)->meta
.manager
->units_per_type
[UNIT_SERVICE
]) {
166 t
= (Service
*) other
;
171 if (t
->sysv_start_priority
< 0)
174 /* If both units have modern headers we don't care
175 * about the priorities */
176 if ((!s
->sysv_path
|| s
->sysv_has_lsb
) &&
177 (!t
->sysv_path
|| t
->sysv_has_lsb
))
180 if (t
->sysv_start_priority
< s
->sysv_start_priority
)
182 else if (t
->sysv_start_priority
> s
->sysv_start_priority
)
187 /* FIXME: Maybe we should compare the name here lexicographically? */
189 if (!(r
= unit_add_dependency(UNIT(s
), d
, UNIT(t
))) < 0)
196 static ExecCommand
*exec_command_new(const char *path
, const char *arg1
) {
199 if (!(c
= new0(ExecCommand
, 1)))
202 if (!(c
->path
= strdup(path
))) {
207 if (!(c
->argv
= strv_new(path
, arg1
, NULL
))) {
216 static int sysv_exec_commands(Service
*s
) {
220 assert(s
->sysv_path
);
222 if (!(c
= exec_command_new(s
->sysv_path
, "start")))
224 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_START
, c
);
226 if (!(c
= exec_command_new(s
->sysv_path
, "stop")))
228 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_STOP
, c
);
230 if (!(c
= exec_command_new(s
->sysv_path
, "reload")))
232 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_RELOAD
, c
);
237 static int priority_from_rcd(Service
*s
, const char *init_script
) {
241 STRV_FOREACH(p
, UNIT(s
)->meta
.manager
->sysvrcnd_path
)
242 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
+= 2) {
247 if (asprintf(&path
, "%s/%s", *p
, rcnd_table
[i
]) < 0)
255 log_warning("opendir() failed on %s: %s", path
, strerror(errno
));
260 while ((de
= readdir(d
))) {
263 if (ignore_file(de
->d_name
))
266 if (de
->d_name
[0] != 'S')
269 if (strlen(de
->d_name
) < 4)
272 if (!streq(de
->d_name
+ 3, init_script
))
275 /* Yay, we found it! Now decode the priority */
277 a
= undecchar(de
->d_name
[1]);
278 b
= undecchar(de
->d_name
[2]);
283 s
->sysv_start_priority
= a
*10 + b
;
285 log_debug("Determined priority %i from link farm for %s", s
->sysv_start_priority
, unit_id(UNIT(s
)));
297 static int service_load_sysv_path(Service
*s
, const char *path
) {
314 if (!(f
= fopen(path
, "re"))) {
315 r
= errno
== ENOENT
? 0 : -errno
;
319 s
->type
= SERVICE_FORKING
;
320 s
->restart
= SERVICE_ONCE
;
323 if (!(s
->sysv_path
= strdup(path
))) {
329 char l
[LINE_MAX
], *t
;
331 if (!fgets(l
, sizeof(l
), f
)) {
336 log_error("Failed to read configuration file '%s': %s", path
, strerror(-r
));
346 if (state
== NORMAL
&& streq(t
, "### BEGIN INIT INFO")) {
348 s
->sysv_has_lsb
= true;
352 if ((state
== LSB_DESCRIPTION
|| state
== LSB
) && streq(t
, "### END INIT INFO")) {
358 t
+= strspn(t
, WHITESPACE
);
360 if (state
== NORMAL
) {
362 /* Try to parse Red Hat style chkconfig headers */
364 if (startswith(t
, "chkconfig:")) {
366 char runlevels
[16], *k
;
370 if (sscanf(t
+10, "%15s %i %*i",
372 &start_priority
) != 2) {
374 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path
, line
);
378 if (start_priority
< 0 || start_priority
> 99)
379 log_warning("[%s:%u] Start priority out of range. Ignoring.", path
, line
);
381 s
->sysv_start_priority
= start_priority
;
383 char_array_0(runlevels
);
384 k
= delete_chars(runlevels
, WHITESPACE
"-");
389 if (!(d
= strdup(k
))) {
394 free(s
->sysv_runlevels
);
395 s
->sysv_runlevels
= d
;
399 } else if (startswith(t
, "description:")) {
401 size_t k
= strlen(t
);
404 if (t
[k
-1] == '\\') {
409 if (!(d
= strdup(strstrip(t
+12)))) {
414 free(u
->meta
.description
);
415 u
->meta
.description
= d
;
417 } else if (startswith(t
, "pidfile:")) {
424 if (!path_is_absolute(fn
)) {
425 log_warning("[%s:%u] PID file not absolute. Ignoring.", path
, line
);
429 if (!(fn
= strdup(fn
))) {
438 } else if (state
== DESCRIPTION
) {
440 /* Try to parse Red Hat style description
443 size_t k
= strlen(t
);
451 assert(u
->meta
.description
);
452 if (asprintf(&d
, "%s %s", u
->meta
.description
, strstrip(t
)) < 0) {
457 free(u
->meta
.description
);
458 u
->meta
.description
= d
;
460 } else if (state
== LSB
|| state
== LSB_DESCRIPTION
) {
462 if (startswith(t
, "Provides:")) {
468 FOREACH_WORD(w
, z
, t
+9, i
) {
471 if (!(n
= strndup(w
, z
))) {
476 r
= sysv_translate_name(n
, &m
);
485 if (unit_name_to_type(m
) == UNIT_SERVICE
)
486 r
= unit_add_name(u
, m
);
488 if ((r
= unit_add_dependency_by_name_inverse(u
, UNIT_REQUIRES
, m
)) >= 0)
489 r
= unit_add_dependency_by_name(u
, UNIT_BEFORE
, m
);
498 } else if (startswith(t
, "Required-Start:") ||
499 startswith(t
, "Should-Start:")) {
505 FOREACH_WORD(w
, z
, strchr(t
, ':')+1, i
) {
508 if (!(n
= strndup(w
, z
))) {
513 r
= sysv_translate_name(n
, &m
);
522 r
= unit_add_dependency_by_name(u
, UNIT_AFTER
, m
);
528 } else if (startswith(t
, "Default-Start:")) {
533 k
= delete_chars(t
+14, WHITESPACE
"-");
536 if (!(d
= strdup(k
))) {
541 free(s
->sysv_runlevels
);
542 s
->sysv_runlevels
= d
;
545 } else if (startswith(t
, "Description:")) {
548 state
= LSB_DESCRIPTION
;
550 if (!(d
= strdup(strstrip(t
+12)))) {
555 free(u
->meta
.description
);
556 u
->meta
.description
= d
;
558 } else if (startswith(t
, "Short-Description:") &&
559 !u
->meta
.description
) {
562 /* We use the short description only
563 * if no long description is set. */
567 if (!(d
= strdup(strstrip(t
+18)))) {
572 u
->meta
.description
= d
;
574 } else if (state
== LSB_DESCRIPTION
) {
576 if (startswith(l
, "#\t") || startswith(l
, "# ")) {
579 assert(u
->meta
.description
);
580 if (asprintf(&d
, "%s %s", u
->meta
.description
, t
) < 0) {
585 free(u
->meta
.description
);
586 u
->meta
.description
= d
;
593 /* If init scripts have no LSB header, then we enforce the
594 * ordering via the chkconfig priorities. We try to determine
595 * a priority for *all* init scripts here, since they are
596 * needed as soon as at least one non-LSB script is used. */
598 if (s
->sysv_start_priority
< 0) {
599 log_debug("%s has no chkconfig header, trying to determine SysV priority from link farm.", unit_id(u
));
601 if ((r
= priority_from_rcd(s
, file_name_from_path(path
))) < 0)
604 if (s
->sysv_start_priority
< 0)
605 log_warning("%s has neither a chkconfig header nor a directory link, cannot order unit!", unit_id(u
));
608 if ((r
= sysv_exec_commands(s
)) < 0)
611 if (!s
->sysv_runlevels
|| chars_intersect("12345", s
->sysv_runlevels
)) {
612 /* If there a runlevels configured for this service
613 * but none of the standard ones, then we assume this
614 * is some special kind of service (which might be
615 * needed for early boot) and don't create any links
618 if ((r
= unit_add_dependency_by_name(u
, UNIT_REQUIRES
, SPECIAL_BASIC_TARGET
)) < 0 ||
619 (r
= unit_add_dependency_by_name(u
, UNIT_AFTER
, SPECIAL_BASIC_TARGET
)) < 0)
623 /* Special setting for all SysV services */
624 s
->valid_no_process
= true;
626 u
->meta
.load_state
= UNIT_LOADED
;
637 static int service_load_sysv_name(Service
*s
, const char *name
) {
643 STRV_FOREACH(p
, UNIT(s
)->meta
.manager
->sysvinit_path
) {
647 if (asprintf(&path
, "%s/%s", *p
, name
) < 0)
650 assert(endswith(path
, ".service"));
651 path
[strlen(path
)-8] = 0;
653 r
= service_load_sysv_path(s
, path
);
659 if ((UNIT(s
)->meta
.load_state
!= UNIT_STUB
))
666 static int service_load_sysv(Service
*s
) {
673 /* Load service data from SysV init scripts, preferably with
676 if (strv_isempty(UNIT(s
)->meta
.manager
->sysvinit_path
))
679 if ((t
= unit_id(UNIT(s
))))
680 if ((r
= service_load_sysv_name(s
, t
)) < 0)
683 if (UNIT(s
)->meta
.load_state
== UNIT_STUB
)
684 SET_FOREACH(t
, UNIT(s
)->meta
.names
, i
) {
685 if (t
== unit_id(UNIT(s
)))
688 if ((r
== service_load_sysv_name(s
, t
)) < 0)
691 if (UNIT(s
)->meta
.load_state
!= UNIT_STUB
)
698 static void service_init(Unit
*u
) {
699 Service
*s
= SERVICE(u
);
702 assert(u
->meta
.load_state
== UNIT_STUB
);
707 s
->timeout_usec
= DEFAULT_TIMEOUT_USEC
;
708 s
->restart_usec
= DEFAULT_RESTART_USEC
;
710 exec_context_init(&s
->exec_context
);
712 s
->timer_watch
.type
= WATCH_INVALID
;
714 s
->state
= SERVICE_DEAD
;
716 s
->sysv_start_priority
= -1;
717 s
->permissions_start_only
= false;
718 s
->root_directory_start_only
= false;
719 s
->valid_no_process
= false;
721 s
->sysv_has_lsb
= false;
722 s
->main_pid
= s
->control_pid
= 0;
723 s
->main_pid_known
= false;
726 RATELIMIT_INIT(s
->ratelimit
, 10*USEC_PER_SEC
, 5);
729 static int service_load(Unit
*u
) {
731 Service
*s
= SERVICE(u
);
735 /* Load a .service file */
736 if ((r
= unit_load_fragment(u
)) < 0)
739 /* Load a classic init script as a fallback, if we couldn't find anything */
740 if (u
->meta
.load_state
== UNIT_STUB
)
741 if ((r
= service_load_sysv(s
)) < 0)
744 /* Still nothing found? Then let's give up */
745 if (u
->meta
.load_state
== UNIT_STUB
)
748 /* We were able to load something, then let's add in the
749 * dropin directories. */
750 if ((r
= unit_load_dropin(unit_follow_merge(u
))) < 0)
753 /* This is a new unit? Then let's add in some extras */
754 if (u
->meta
.load_state
== UNIT_LOADED
) {
755 if ((r
= unit_add_exec_dependencies(u
, &s
->exec_context
)) < 0)
758 if ((r
= unit_add_default_cgroup(u
)) < 0)
761 if ((r
= sysv_chkconfig_order(s
)) < 0)
768 static void service_dump(Unit
*u
, FILE *f
, const char *prefix
) {
770 ServiceExecCommand c
;
771 Service
*s
= SERVICE(u
);
777 p2
= strappend(prefix
, "\t");
778 prefix2
= p2
? p2
: prefix
;
781 "%sService State: %s\n"
782 "%sPermissionsStartOnly: %s\n"
783 "%sRootDirectoryStartOnly: %s\n"
784 "%sValidNoProcess: %s\n"
787 prefix
, service_state_to_string(s
->state
),
788 prefix
, yes_no(s
->permissions_start_only
),
789 prefix
, yes_no(s
->root_directory_start_only
),
790 prefix
, yes_no(s
->valid_no_process
),
791 prefix
, kill_mode_to_string(s
->kill_mode
),
792 prefix
, service_type_to_string(s
->type
));
794 if (s
->control_pid
> 0)
796 "%sControl PID: %llu\n",
797 prefix
, (unsigned long long) s
->control_pid
);
801 "%sMain PID: %llu\n",
802 prefix
, (unsigned long long) s
->main_pid
);
807 prefix
, s
->pid_file
);
809 exec_context_dump(&s
->exec_context
, f
, prefix
);
811 for (c
= 0; c
< _SERVICE_EXEC_COMMAND_MAX
; c
++) {
813 if (!s
->exec_command
[c
])
816 fprintf(f
, "%s→ %s:\n",
817 prefix
, service_exec_command_to_string(c
));
819 exec_command_dump_list(s
->exec_command
[c
], f
, prefix2
);
824 "%sSysV Init Script Path: %s\n"
825 "%sSysV Init Script has LSB Header: %s\n",
826 prefix
, s
->sysv_path
,
827 prefix
, yes_no(s
->sysv_has_lsb
));
829 if (s
->sysv_start_priority
>= 0)
831 "%sSysVStartPriority: %i\n",
832 prefix
, s
->sysv_start_priority
);
834 if (s
->sysv_runlevels
)
835 fprintf(f
, "%sSysVRunLevels: %s\n",
836 prefix
, s
->sysv_runlevels
);
841 static int service_load_pid_file(Service
*s
) {
848 if (s
->main_pid_known
)
851 assert(s
->main_pid
<= 0);
856 if ((r
= read_one_line_file(s
->pid_file
, &k
)) < 0)
859 if ((r
= safe_atolu(k
, &p
)) < 0) {
864 if ((unsigned long) (pid_t
) p
!= p
)
867 if (kill((pid_t
) p
, 0) < 0 && errno
!= EPERM
) {
868 log_warning("PID %llu read from file %s does not exist. Your service or init script might be broken.",
869 (unsigned long long) p
, s
->pid_file
);
873 if ((r
= unit_watch_pid(UNIT(s
), (pid_t
) p
)) < 0)
874 /* FIXME: we need to do something here */
877 s
->main_pid
= (pid_t
) p
;
878 s
->main_pid_known
= true;
883 static int service_get_sockets(Service
*s
, Set
**_set
) {
892 /* Collects all Socket objects that belong to this
893 * service. Note that a service might have multiple sockets
894 * via multiple names. */
896 if (!(set
= set_new(NULL
, NULL
)))
899 SET_FOREACH(t
, UNIT(s
)->meta
.names
, i
) {
903 /* Look for all socket objects that go by any of our
904 * units and collect their fds */
906 if (!(k
= unit_name_change_suffix(t
, ".socket"))) {
911 p
= manager_get_unit(UNIT(s
)->meta
.manager
, k
);
916 if ((r
= set_put(set
, p
)) < 0)
929 static int service_notify_sockets_dead(Service
*s
) {
937 /* Notifies all our sockets when we die */
939 if ((r
= service_get_sockets(s
, &set
)) < 0)
942 SET_FOREACH(sock
, set
, i
)
943 socket_notify_service_dead(sock
);
950 static void service_set_state(Service
*s
, ServiceState state
) {
951 ServiceState old_state
;
954 old_state
= s
->state
;
957 if (state
!= SERVICE_START_PRE
&&
958 state
!= SERVICE_START
&&
959 state
!= SERVICE_START_POST
&&
960 state
!= SERVICE_RELOAD
&&
961 state
!= SERVICE_STOP
&&
962 state
!= SERVICE_STOP_SIGTERM
&&
963 state
!= SERVICE_STOP_SIGKILL
&&
964 state
!= SERVICE_STOP_POST
&&
965 state
!= SERVICE_FINAL_SIGTERM
&&
966 state
!= SERVICE_FINAL_SIGKILL
&&
967 state
!= SERVICE_AUTO_RESTART
)
968 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
970 if (state
!= SERVICE_START
&&
971 state
!= SERVICE_START_POST
&&
972 state
!= SERVICE_RUNNING
&&
973 state
!= SERVICE_RELOAD
&&
974 state
!= SERVICE_STOP
&&
975 state
!= SERVICE_STOP_SIGTERM
&&
976 state
!= SERVICE_STOP_SIGKILL
)
977 service_unwatch_main_pid(s
);
979 if (state
!= SERVICE_START_PRE
&&
980 state
!= SERVICE_START
&&
981 state
!= SERVICE_START_POST
&&
982 state
!= SERVICE_RELOAD
&&
983 state
!= SERVICE_STOP
&&
984 state
!= SERVICE_STOP_SIGTERM
&&
985 state
!= SERVICE_STOP_SIGKILL
&&
986 state
!= SERVICE_STOP_POST
&&
987 state
!= SERVICE_FINAL_SIGTERM
&&
988 state
!= SERVICE_FINAL_SIGKILL
) {
989 service_unwatch_control_pid(s
);
990 s
->control_command
= NULL
;
993 if (state
== SERVICE_DEAD
||
994 state
== SERVICE_STOP
||
995 state
== SERVICE_STOP_SIGTERM
||
996 state
== SERVICE_STOP_SIGKILL
||
997 state
== SERVICE_STOP_POST
||
998 state
== SERVICE_FINAL_SIGTERM
||
999 state
== SERVICE_FINAL_SIGKILL
||
1000 state
== SERVICE_MAINTAINANCE
||
1001 state
== SERVICE_AUTO_RESTART
)
1002 service_notify_sockets_dead(s
);
1004 if (old_state
!= state
)
1005 log_debug("%s changed %s → %s", unit_id(UNIT(s
)), service_state_to_string(old_state
), service_state_to_string(state
));
1007 unit_notify(UNIT(s
), state_translation_table
[old_state
], state_translation_table
[state
]);
1010 static int service_collect_fds(Service
*s
, int **fds
, unsigned *n_fds
) {
1014 unsigned rn_fds
= 0;
1022 if ((r
= service_get_sockets(s
, &set
)) < 0)
1025 SET_FOREACH(sock
, set
, i
) {
1029 if ((r
= socket_collect_fds(sock
, &cfds
, &cn_fds
)) < 0)
1041 if (!(t
= new(int, rn_fds
+cn_fds
))) {
1047 memcpy(t
, rfds
, rn_fds
);
1048 memcpy(t
+rn_fds
, cfds
, cn_fds
);
1053 rn_fds
= rn_fds
+cn_fds
;
1071 static int service_spawn(
1076 bool apply_permissions
,
1090 if ((r
= service_collect_fds(s
, &fds
, &n_fds
)) < 0)
1094 if ((r
= unit_watch_timer(UNIT(s
), s
->timeout_usec
, &s
->timer_watch
)) < 0)
1097 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1099 if ((r
= exec_spawn(c
,
1104 UNIT(s
)->meta
.manager
->confirm_spawn
,
1105 UNIT(s
)->meta
.cgroup_bondings
,
1109 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1110 /* FIXME: we need to do something here */
1122 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1127 static int main_pid_good(Service
*s
) {
1130 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1133 /* If we know the pid file, then lets just check if it is
1135 if (s
->main_pid_known
)
1136 return s
->main_pid
> 0;
1138 /* We don't know the pid */
1142 static int control_pid_good(Service
*s
) {
1145 return s
->control_pid
> 0;
1148 static int cgroup_good(Service
*s
) {
1153 if (s
->valid_no_process
)
1156 if ((r
= cgroup_bonding_is_empty_list(UNIT(s
)->meta
.cgroup_bondings
)) < 0)
1162 static void service_enter_dead(Service
*s
, bool success
, bool allow_restart
) {
1169 if (allow_restart
&&
1170 (s
->restart
== SERVICE_RESTART_ALWAYS
||
1171 (s
->restart
== SERVICE_RESTART_ON_SUCCESS
&& !s
->failure
))) {
1173 if ((r
= unit_watch_timer(UNIT(s
), s
->restart_usec
, &s
->timer_watch
)) < 0)
1176 service_set_state(s
, SERVICE_AUTO_RESTART
);
1178 service_set_state(s
, s
->failure
? SERVICE_MAINTAINANCE
: SERVICE_DEAD
);
1183 log_warning("%s failed to run install restart timer: %s", unit_id(UNIT(s
)), strerror(-r
));
1184 service_enter_dead(s
, false, false);
1187 static void service_enter_signal(Service
*s
, ServiceState state
, bool success
);
1189 static void service_enter_stop_post(Service
*s
, bool success
) {
1196 service_unwatch_control_pid(s
);
1198 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP_POST
])) {
1199 if ((r
= service_spawn(s
,
1203 !s
->permissions_start_only
,
1204 !s
->root_directory_start_only
,
1205 &s
->control_pid
)) < 0)
1209 service_set_state(s
, SERVICE_STOP_POST
);
1211 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, true);
1216 log_warning("%s failed to run stop-post executable: %s", unit_id(UNIT(s
)), strerror(-r
));
1217 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1220 static void service_enter_signal(Service
*s
, ServiceState state
, bool success
) {
1229 if (s
->kill_mode
!= KILL_NONE
) {
1230 int sig
= (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_FINAL_SIGTERM
) ? SIGTERM
: SIGKILL
;
1232 if (s
->kill_mode
== KILL_CONTROL_GROUP
) {
1234 if ((r
= cgroup_bonding_kill_list(UNIT(s
)->meta
.cgroup_bondings
, sig
)) < 0) {
1235 if (r
!= -EAGAIN
&& r
!= -ESRCH
)
1244 if (s
->main_pid
> 0) {
1245 if (kill(s
->kill_mode
== KILL_PROCESS
? s
->main_pid
: -s
->main_pid
, sig
) < 0 && errno
!= ESRCH
)
1251 if (s
->control_pid
> 0) {
1252 if (kill(s
->kill_mode
== KILL_PROCESS
? s
->control_pid
: -s
->control_pid
, sig
) < 0 && errno
!= ESRCH
)
1264 if ((r
= unit_watch_timer(UNIT(s
), s
->timeout_usec
, &s
->timer_watch
)) < 0)
1267 service_set_state(s
, state
);
1268 } else if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
1269 service_enter_stop_post(s
, true);
1271 service_enter_dead(s
, true, true);
1276 log_warning("%s failed to kill processes: %s", unit_id(UNIT(s
)), strerror(-r
));
1278 if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
1279 service_enter_stop_post(s
, false);
1281 service_enter_dead(s
, false, true);
1284 static void service_enter_stop(Service
*s
, bool success
) {
1291 service_unwatch_control_pid(s
);
1293 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP
])) {
1294 if ((r
= service_spawn(s
,
1298 !s
->permissions_start_only
,
1299 !s
->root_directory_start_only
,
1300 &s
->control_pid
)) < 0)
1303 service_set_state(s
, SERVICE_STOP
);
1305 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, true);
1310 log_warning("%s failed to run stop executable: %s", unit_id(UNIT(s
)), strerror(-r
));
1311 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
1314 static void service_enter_running(Service
*s
, bool success
) {
1320 if (main_pid_good(s
) != 0 && cgroup_good(s
) != 0)
1321 service_set_state(s
, SERVICE_RUNNING
);
1322 else if (s
->valid_no_process
)
1323 service_set_state(s
, SERVICE_EXITED
);
1325 service_enter_stop(s
, true);
1328 static void service_enter_start_post(Service
*s
) {
1332 service_unwatch_control_pid(s
);
1334 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_POST
])) {
1335 if ((r
= service_spawn(s
,
1339 !s
->permissions_start_only
,
1340 !s
->root_directory_start_only
,
1341 &s
->control_pid
)) < 0)
1345 service_set_state(s
, SERVICE_START_POST
);
1347 service_enter_running(s
, true);
1352 log_warning("%s failed to run start-post executable: %s", unit_id(UNIT(s
)), strerror(-r
));
1353 service_enter_stop(s
, false);
1356 static void service_enter_start(Service
*s
) {
1362 assert(s
->exec_command
[SERVICE_EXEC_START
]);
1363 assert(!s
->exec_command
[SERVICE_EXEC_START
]->command_next
);
1365 if (s
->type
== SERVICE_FORKING
)
1366 service_unwatch_control_pid(s
);
1368 service_unwatch_main_pid(s
);
1370 if ((r
= service_spawn(s
,
1371 s
->exec_command
[SERVICE_EXEC_START
],
1372 s
->type
== SERVICE_FORKING
,
1379 if (s
->type
== SERVICE_SIMPLE
) {
1380 /* For simple services we immediately start
1381 * the START_POST binaries. */
1384 s
->main_pid_known
= true;
1386 service_enter_start_post(s
);
1388 } else if (s
->type
== SERVICE_FORKING
) {
1390 /* For forking services we wait until the start
1391 * process exited. */
1393 s
->control_pid
= pid
;
1395 s
->control_command
= s
->exec_command
[SERVICE_EXEC_START
];
1396 service_set_state(s
, SERVICE_START
);
1398 } else if (s
->type
== SERVICE_FINISH
) {
1400 /* For finishing services we wait until the start
1401 * process exited, too, but it is our main process. */
1404 s
->main_pid_known
= true;
1406 s
->control_command
= s
->exec_command
[SERVICE_EXEC_START
];
1407 service_set_state(s
, SERVICE_START
);
1409 assert_not_reached("Unknown service type");
1414 log_warning("%s failed to run start exectuable: %s", unit_id(UNIT(s
)), strerror(-r
));
1415 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1418 static void service_enter_start_pre(Service
*s
) {
1423 service_unwatch_control_pid(s
);
1425 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_PRE
])) {
1426 if ((r
= service_spawn(s
,
1430 !s
->permissions_start_only
,
1431 !s
->root_directory_start_only
,
1432 &s
->control_pid
)) < 0)
1435 service_set_state(s
, SERVICE_START_PRE
);
1437 service_enter_start(s
);
1442 log_warning("%s failed to run start-pre executable: %s", unit_id(UNIT(s
)), strerror(-r
));
1443 service_enter_dead(s
, false, true);
1446 static void service_enter_restart(Service
*s
) {
1450 if ((r
= manager_add_job(UNIT(s
)->meta
.manager
, JOB_START
, UNIT(s
), JOB_FAIL
, false, NULL
)) < 0)
1453 log_debug("%s scheduled restart job.", unit_id(UNIT(s
)));
1454 service_enter_dead(s
, true, false);
1459 log_warning("%s failed to schedule restart job: %s", unit_id(UNIT(s
)), strerror(-r
));
1460 service_enter_dead(s
, false, false);
1463 static void service_enter_reload(Service
*s
) {
1468 service_unwatch_control_pid(s
);
1470 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_RELOAD
])) {
1471 if ((r
= service_spawn(s
,
1475 !s
->permissions_start_only
,
1476 !s
->root_directory_start_only
,
1477 &s
->control_pid
)) < 0)
1480 service_set_state(s
, SERVICE_RELOAD
);
1482 service_enter_running(s
, true);
1487 log_warning("%s failed to run reload executable: %s", unit_id(UNIT(s
)), strerror(-r
));
1488 service_enter_stop(s
, false);
1491 static void service_run_next(Service
*s
, bool success
) {
1495 assert(s
->control_command
);
1496 assert(s
->control_command
->command_next
);
1501 s
->control_command
= s
->control_command
->command_next
;
1503 service_unwatch_control_pid(s
);
1505 if ((r
= service_spawn(s
,
1509 !s
->permissions_start_only
,
1510 !s
->root_directory_start_only
,
1511 &s
->control_pid
)) < 0)
1517 log_warning("%s failed to run spawn next executable: %s", unit_id(UNIT(s
)), strerror(-r
));
1519 if (s
->state
== SERVICE_START_PRE
)
1520 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1521 else if (s
->state
== SERVICE_STOP
)
1522 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
1523 else if (s
->state
== SERVICE_STOP_POST
)
1524 service_enter_dead(s
, false, true);
1526 service_enter_stop(s
, false);
1529 static int service_start(Unit
*u
) {
1530 Service
*s
= SERVICE(u
);
1534 /* We cannot fulfill this request right now, try again later
1536 if (s
->state
== SERVICE_STOP
||
1537 s
->state
== SERVICE_STOP_SIGTERM
||
1538 s
->state
== SERVICE_STOP_SIGKILL
||
1539 s
->state
== SERVICE_STOP_POST
||
1540 s
->state
== SERVICE_FINAL_SIGTERM
||
1541 s
->state
== SERVICE_FINAL_SIGKILL
)
1544 /* Already on it! */
1545 if (s
->state
== SERVICE_START_PRE
||
1546 s
->state
== SERVICE_START
||
1547 s
->state
== SERVICE_START_POST
)
1550 assert(s
->state
== SERVICE_DEAD
|| s
->state
== SERVICE_MAINTAINANCE
|| s
->state
== SERVICE_AUTO_RESTART
);
1552 /* Make sure we don't enter a busy loop of some kind. */
1553 if (!ratelimit_test(&s
->ratelimit
)) {
1554 log_warning("%s start request repeated too quickly, refusing to start.", unit_id(u
));
1559 s
->main_pid_known
= false;
1561 service_enter_start_pre(s
);
1565 static int service_stop(Unit
*u
) {
1566 Service
*s
= SERVICE(u
);
1570 /* Cannot do this now */
1571 if (s
->state
== SERVICE_START_PRE
||
1572 s
->state
== SERVICE_START
||
1573 s
->state
== SERVICE_START_POST
||
1574 s
->state
== SERVICE_RELOAD
)
1578 if (s
->state
== SERVICE_STOP
||
1579 s
->state
== SERVICE_STOP_SIGTERM
||
1580 s
->state
== SERVICE_STOP_SIGKILL
||
1581 s
->state
== SERVICE_STOP_POST
||
1582 s
->state
== SERVICE_FINAL_SIGTERM
||
1583 s
->state
== SERVICE_FINAL_SIGKILL
)
1586 if (s
->state
== SERVICE_AUTO_RESTART
) {
1587 service_set_state(s
, SERVICE_DEAD
);
1591 assert(s
->state
== SERVICE_RUNNING
|| s
->state
== SERVICE_EXITED
);
1593 service_enter_stop(s
, true);
1597 static int service_reload(Unit
*u
) {
1598 Service
*s
= SERVICE(u
);
1602 assert(s
->state
== SERVICE_RUNNING
|| s
->state
== SERVICE_EXITED
);
1604 service_enter_reload(s
);
1608 static bool service_can_reload(Unit
*u
) {
1609 Service
*s
= SERVICE(u
);
1613 return !!s
->exec_command
[SERVICE_EXEC_RELOAD
];
1616 static UnitActiveState
service_active_state(Unit
*u
) {
1619 return state_translation_table
[SERVICE(u
)->state
];
1622 static void service_sigchld_event(Unit
*u
, pid_t pid
, int code
, int status
) {
1623 Service
*s
= SERVICE(u
);
1629 success
= code
== CLD_EXITED
&& status
== 0;
1630 s
->failure
= s
->failure
|| !success
;
1632 if (s
->main_pid
== pid
) {
1634 exec_status_fill(&s
->main_exec_status
, pid
, code
, status
);
1637 if (s
->type
== SERVICE_SIMPLE
|| s
->type
== SERVICE_FINISH
) {
1638 assert(s
->exec_command
[SERVICE_EXEC_START
]);
1639 s
->exec_command
[SERVICE_EXEC_START
]->exec_status
= s
->main_exec_status
;
1642 log_debug("%s: main process exited, code=%s, status=%i", unit_id(u
), sigchld_code_to_string(code
), status
);
1644 /* The service exited, so the service is officially
1649 case SERVICE_START_POST
:
1650 case SERVICE_RELOAD
:
1652 /* Need to wait until the operation is
1657 assert(s
->type
== SERVICE_FINISH
);
1659 /* This was our main goal, so let's go on */
1661 service_enter_start_post(s
);
1663 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1666 case SERVICE_RUNNING
:
1667 service_enter_running(s
, success
);
1670 case SERVICE_STOP_SIGTERM
:
1671 case SERVICE_STOP_SIGKILL
:
1673 if (!control_pid_good(s
))
1674 service_enter_stop_post(s
, success
);
1676 /* If there is still a control process, wait for that first */
1680 assert_not_reached("Uh, main process died at wrong time.");
1683 } else if (s
->control_pid
== pid
) {
1684 assert(s
->control_command
);
1686 exec_status_fill(&s
->control_command
->exec_status
, pid
, code
, status
);
1689 log_debug("%s: control process exited, code=%s status=%i", unit_id(u
), sigchld_code_to_string(code
), status
);
1691 /* If we are shutting things down anyway we
1692 * don't care about failing commands. */
1694 if (s
->control_command
->command_next
&& success
) {
1696 /* There is another command to *
1697 * execute, so let's do that. */
1699 log_debug("%s running next command for state %s", unit_id(u
), service_state_to_string(s
->state
));
1700 service_run_next(s
, success
);
1703 /* No further commands for this step, so let's
1704 * figure out what to do next */
1706 log_debug("%s got final SIGCHLD for state %s", unit_id(u
), service_state_to_string(s
->state
));
1710 case SERVICE_START_PRE
:
1712 service_enter_start(s
);
1714 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1718 assert(s
->type
== SERVICE_FORKING
);
1720 /* Let's try to load the pid
1721 * file here if we can. We
1722 * ignore the return value,
1723 * since the PID file might
1724 * actually be created by a
1725 * START_POST script */
1729 service_load_pid_file(s
);
1731 service_enter_start_post(s
);
1733 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1737 case SERVICE_START_POST
:
1738 if (success
&& s
->pid_file
&& !s
->main_pid_known
) {
1741 /* Hmm, let's see if we can
1742 * load the pid now after the
1743 * start-post scripts got
1746 if ((r
= service_load_pid_file(s
)) < 0)
1747 log_warning("%s: failed to load PID file %s: %s", unit_id(UNIT(s
)), s
->pid_file
, strerror(-r
));
1752 case SERVICE_RELOAD
:
1754 service_enter_running(s
, true);
1756 service_enter_stop(s
, false);
1761 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, success
);
1764 case SERVICE_STOP_SIGTERM
:
1765 case SERVICE_STOP_SIGKILL
:
1766 if (main_pid_good(s
) <= 0)
1767 service_enter_stop_post(s
, success
);
1769 /* If there is still a service
1770 * process around, wait until
1771 * that one quit, too */
1774 case SERVICE_STOP_POST
:
1775 case SERVICE_FINAL_SIGTERM
:
1776 case SERVICE_FINAL_SIGKILL
:
1777 service_enter_dead(s
, success
, true);
1781 assert_not_reached("Uh, control process died at wrong time.");
1785 assert_not_reached("Got SIGCHLD for unkown PID");
1788 static void service_timer_event(Unit
*u
, uint64_t elapsed
, Watch
* w
) {
1789 Service
*s
= SERVICE(u
);
1792 assert(elapsed
== 1);
1794 assert(w
== &s
->timer_watch
);
1798 case SERVICE_START_PRE
:
1800 log_warning("%s operation timed out. Terminating.", unit_id(u
));
1801 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1804 case SERVICE_START_POST
:
1805 case SERVICE_RELOAD
:
1806 log_warning("%s operation timed out. Stopping.", unit_id(u
));
1807 service_enter_stop(s
, false);
1811 log_warning("%s stopping timed out. Terminating.", unit_id(u
));
1812 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
1815 case SERVICE_STOP_SIGTERM
:
1816 log_warning("%s stopping timed out. Killing.", unit_id(u
));
1817 service_enter_signal(s
, SERVICE_STOP_SIGKILL
, false);
1820 case SERVICE_STOP_SIGKILL
:
1821 /* Uh, wie sent a SIGKILL and it is still not gone?
1822 * Must be something we cannot kill, so let's just be
1823 * weirded out and continue */
1825 log_warning("%s still around after SIGKILL. Ignoring.", unit_id(u
));
1826 service_enter_stop_post(s
, false);
1829 case SERVICE_STOP_POST
:
1830 log_warning("%s stopping timed out (2). Terminating.", unit_id(u
));
1831 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1834 case SERVICE_FINAL_SIGTERM
:
1835 log_warning("%s stopping timed out (2). Killing.", unit_id(u
));
1836 service_enter_signal(s
, SERVICE_FINAL_SIGKILL
, false);
1839 case SERVICE_FINAL_SIGKILL
:
1840 log_warning("%s still around after SIGKILL (2). Entering maintainance mode.", unit_id(u
));
1841 service_enter_dead(s
, false, true);
1844 case SERVICE_AUTO_RESTART
:
1845 log_debug("%s holdoff time over, scheduling restart.", unit_id(u
));
1846 service_enter_restart(s
);
1850 assert_not_reached("Timeout at wrong time.");
1854 static void service_cgroup_notify_event(Unit
*u
) {
1855 Service
*s
= SERVICE(u
);
1859 log_debug("%s: cgroup is empty", unit_id(u
));
1863 /* Waiting for SIGCHLD is usually more interesting,
1864 * because it includes return codes/signals. Which is
1865 * why we ignore the cgroup events for most cases,
1866 * except when we don't know pid which to expect the
1869 case SERVICE_RUNNING
:
1870 service_enter_running(s
, true);
1878 static int service_enumerate(Manager
*m
) {
1882 char *path
= NULL
, *fpath
= NULL
, *name
= NULL
;
1887 STRV_FOREACH(p
, m
->sysvrcnd_path
)
1888 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
+= 2) {
1893 if (asprintf(&path
, "%s/%s", *p
, rcnd_table
[i
]) < 0) {
1901 if (!(d
= opendir(path
))) {
1902 if (errno
!= ENOENT
)
1903 log_warning("opendir() failed on %s: %s", path
, strerror(errno
));
1908 while ((de
= readdir(d
))) {
1909 Unit
*runlevel
, *service
;
1911 if (ignore_file(de
->d_name
))
1914 if (de
->d_name
[0] != 'S' && de
->d_name
[0] != 'K')
1917 if (strlen(de
->d_name
) < 4)
1922 if (asprintf(&fpath
, "%s/%s/%s", *p
, rcnd_table
[i
], de
->d_name
) < 0) {
1927 if (access(fpath
, X_OK
) < 0) {
1929 if (errno
!= ENOENT
)
1930 log_warning("access() failed on %s: %s", fpath
, strerror(errno
));
1937 if (asprintf(&name
, "%s.service", de
->d_name
+3) < 0) {
1942 if ((r
= manager_load_unit(m
, name
, &service
)) < 0)
1945 if ((r
= manager_load_unit(m
, rcnd_table
[i
+1], &runlevel
)) < 0)
1948 if (de
->d_name
[0] == 'S') {
1949 if ((r
= unit_add_dependency(runlevel
, UNIT_WANTS
, service
)) < 0)
1952 if ((r
= unit_add_dependency(runlevel
, UNIT_AFTER
, service
)) < 0)
1955 } else if (de
->d_name
[0] == 'K' &&
1956 (streq(rcnd_table
[i
+1], SPECIAL_RUNLEVEL0_TARGET
) ||
1957 streq(rcnd_table
[i
+1], SPECIAL_RUNLEVEL6_TARGET
))) {
1959 /* We honour K links only for
1960 * halt/reboot. For the normal
1961 * runlevels we assume the
1963 * implicitly added by the
1966 if ((r
= unit_add_dependency(runlevel
, UNIT_CONFLICTS
, service
)) < 0)
1969 if ((r
= unit_add_dependency(runlevel
, UNIT_BEFORE
, service
)) < 0)
1986 static const char* const service_state_table
[_SERVICE_STATE_MAX
] = {
1987 [SERVICE_DEAD
] = "dead",
1988 [SERVICE_START_PRE
] = "start-pre",
1989 [SERVICE_START
] = "start",
1990 [SERVICE_START_POST
] = "start-post",
1991 [SERVICE_RUNNING
] = "running",
1992 [SERVICE_EXITED
] = "exited",
1993 [SERVICE_RELOAD
] = "reload",
1994 [SERVICE_STOP
] = "stop",
1995 [SERVICE_STOP_SIGTERM
] = "stop-sigterm",
1996 [SERVICE_STOP_SIGKILL
] = "stop-sigkill",
1997 [SERVICE_STOP_POST
] = "stop-post",
1998 [SERVICE_FINAL_SIGTERM
] = "final-sigterm",
1999 [SERVICE_FINAL_SIGKILL
] = "final-sigkill",
2000 [SERVICE_MAINTAINANCE
] = "maintainance",
2001 [SERVICE_AUTO_RESTART
] = "auto-restart",
2004 DEFINE_STRING_TABLE_LOOKUP(service_state
, ServiceState
);
2006 static const char* const service_restart_table
[_SERVICE_RESTART_MAX
] = {
2007 [SERVICE_ONCE
] = "once",
2008 [SERVICE_RESTART_ON_SUCCESS
] = "restart-on-success",
2009 [SERVICE_RESTART_ALWAYS
] = "restart-on-failure",
2012 DEFINE_STRING_TABLE_LOOKUP(service_restart
, ServiceRestart
);
2014 static const char* const service_type_table
[_SERVICE_TYPE_MAX
] = {
2015 [SERVICE_FORKING
] = "forking",
2016 [SERVICE_SIMPLE
] = "simple",
2017 [SERVICE_FINISH
] = "finish"
2020 DEFINE_STRING_TABLE_LOOKUP(service_type
, ServiceType
);
2022 static const char* const service_exec_command_table
[_SERVICE_EXEC_COMMAND_MAX
] = {
2023 [SERVICE_EXEC_START_PRE
] = "ExecStartPre",
2024 [SERVICE_EXEC_START
] = "ExecStart",
2025 [SERVICE_EXEC_START_POST
] = "ExecStartPost",
2026 [SERVICE_EXEC_RELOAD
] = "ExecReload",
2027 [SERVICE_EXEC_STOP
] = "ExecStop",
2028 [SERVICE_EXEC_STOP_POST
] = "ExecStopPost",
2031 DEFINE_STRING_TABLE_LOOKUP(service_exec_command
, ServiceExecCommand
);
2033 const UnitVTable service_vtable
= {
2034 .suffix
= ".service",
2036 .init
= service_init
,
2037 .load
= service_load
,
2038 .done
= service_done
,
2040 .dump
= service_dump
,
2042 .start
= service_start
,
2043 .stop
= service_stop
,
2044 .reload
= service_reload
,
2046 .can_reload
= service_can_reload
,
2048 .active_state
= service_active_state
,
2050 .sigchld_event
= service_sigchld_event
,
2051 .timer_event
= service_timer_event
,
2053 .cgroup_notify_empty
= service_cgroup_notify_event
,
2055 .enumerate
= service_enumerate