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"
33 #include "unit-name.h"
34 #include "dbus-service.h"
37 #define COMMENTS "#;\n"
38 #define NEWLINES "\n\r"
41 typedef enum RunlevelType
{
50 const RunlevelType type
;
52 /* Standard SysV runlevels */
53 { "rc0.d", SPECIAL_POWEROFF_TARGET
, RUNLEVEL_DOWN
},
54 { "rc1.d", SPECIAL_RESCUE_TARGET
, RUNLEVEL_UP
},
55 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET
, RUNLEVEL_UP
},
56 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET
, RUNLEVEL_UP
},
57 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET
, RUNLEVEL_UP
},
58 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET
, RUNLEVEL_UP
},
59 { "rc6.d", SPECIAL_REBOOT_TARGET
, RUNLEVEL_DOWN
},
61 /* SUSE style boot.d */
62 { "boot.d", SPECIAL_SYSINIT_TARGET
, RUNLEVEL_SYSINIT
},
64 /* Debian style rcS.d */
65 { "rcS.d", SPECIAL_SYSINIT_TARGET
, RUNLEVEL_SYSINIT
},
68 #define RUNLEVELS_UP "12345"
69 /* #define RUNLEVELS_DOWN "06" */
70 /* #define RUNLEVELS_BOOT "bBsS" */
72 static const UnitActiveState state_translation_table
[_SERVICE_STATE_MAX
] = {
73 [SERVICE_DEAD
] = UNIT_INACTIVE
,
74 [SERVICE_START_PRE
] = UNIT_ACTIVATING
,
75 [SERVICE_START
] = UNIT_ACTIVATING
,
76 [SERVICE_START_POST
] = UNIT_ACTIVATING
,
77 [SERVICE_RUNNING
] = UNIT_ACTIVE
,
78 [SERVICE_EXITED
] = UNIT_ACTIVE
,
79 [SERVICE_RELOAD
] = UNIT_ACTIVE_RELOADING
,
80 [SERVICE_STOP
] = UNIT_DEACTIVATING
,
81 [SERVICE_STOP_SIGTERM
] = UNIT_DEACTIVATING
,
82 [SERVICE_STOP_SIGKILL
] = UNIT_DEACTIVATING
,
83 [SERVICE_STOP_POST
] = UNIT_DEACTIVATING
,
84 [SERVICE_FINAL_SIGTERM
] = UNIT_DEACTIVATING
,
85 [SERVICE_FINAL_SIGKILL
] = UNIT_DEACTIVATING
,
86 [SERVICE_MAINTENANCE
] = UNIT_INACTIVE
,
87 [SERVICE_AUTO_RESTART
] = UNIT_ACTIVATING
,
90 static void service_init(Unit
*u
) {
91 Service
*s
= SERVICE(u
);
94 assert(u
->meta
.load_state
== UNIT_STUB
);
96 s
->timeout_usec
= DEFAULT_TIMEOUT_USEC
;
97 s
->restart_usec
= DEFAULT_RESTART_USEC
;
98 s
->timer_watch
.type
= WATCH_INVALID
;
99 s
->sysv_start_priority
= -1;
102 exec_context_init(&s
->exec_context
);
104 RATELIMIT_INIT(s
->ratelimit
, 10*USEC_PER_SEC
, 5);
106 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
109 static void service_unwatch_control_pid(Service
*s
) {
112 if (s
->control_pid
<= 0)
115 unit_unwatch_pid(UNIT(s
), s
->control_pid
);
119 static void service_unwatch_main_pid(Service
*s
) {
122 if (s
->main_pid
<= 0)
125 unit_unwatch_pid(UNIT(s
), s
->main_pid
);
129 static int service_set_main_pid(Service
*s
, pid_t pid
) {
140 if (get_parent_of_pid(pid
, &ppid
) >= 0 && ppid
!= getpid())
141 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
142 s
->meta
.id
, (unsigned long) pid
);
145 s
->main_pid_known
= true;
150 static void service_close_socket_fd(Service
*s
) {
153 if (s
->socket_fd
< 0)
156 close_nointr_nofail(s
->socket_fd
);
160 static void service_connection_unref(Service
*s
) {
166 socket_connection_unref(s
->socket
);
170 static void service_done(Unit
*u
) {
171 Service
*s
= SERVICE(u
);
181 free(s
->sysv_runlevels
);
182 s
->sysv_runlevels
= NULL
;
184 free(s
->status_text
);
185 s
->status_text
= NULL
;
187 exec_context_done(&s
->exec_context
);
188 exec_command_free_array(s
->exec_command
, _SERVICE_EXEC_COMMAND_MAX
);
189 s
->control_command
= NULL
;
191 /* This will leak a process, but at least no memory or any of
193 service_unwatch_main_pid(s
);
194 service_unwatch_control_pid(s
);
197 unit_unwatch_bus_name(UNIT(u
), s
->bus_name
);
202 service_close_socket_fd(s
);
203 service_connection_unref(s
);
205 unit_unwatch_timer(u
, &s
->timer_watch
);
208 static char *sysv_translate_name(const char *name
) {
211 if (!(r
= new(char, strlen(name
) + sizeof(".service"))))
214 if (startswith(name
, "boot."))
215 /* Drop SuSE-style boot. prefix */
216 strcpy(stpcpy(r
, name
+ 5), ".service");
217 else if (endswith(name
, ".sh"))
218 /* Drop Debian-style .sh suffix */
219 strcpy(stpcpy(r
, name
) - 3, ".service");
221 /* Normal init scripts */
222 strcpy(stpcpy(r
, name
), ".service");
227 static int sysv_translate_facility(const char *name
, char **_r
) {
229 static const char * const table
[] = {
230 /* LSB defined facilities */
231 "$local_fs", SPECIAL_LOCAL_FS_TARGET
,
232 "$network", SPECIAL_NETWORK_TARGET
,
233 "$named", SPECIAL_NSS_LOOKUP_TARGET
,
234 "$portmap", SPECIAL_RPCBIND_TARGET
,
235 "$remote_fs", SPECIAL_REMOTE_FS_TARGET
,
236 "$syslog", SPECIAL_SYSLOG_TARGET
,
237 "$time", SPECIAL_RTC_SET_TARGET
,
239 /* Debian extensions */
240 "$mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
241 "$mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
242 "$x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE
248 for (i
= 0; i
< ELEMENTSOF(table
); i
+= 2)
249 if (streq(table
[i
], name
)) {
250 if (!(r
= strdup(table
[i
+1])))
259 if (!(r
= sysv_translate_name(name
)))
270 static int sysv_fix_order(Service
*s
) {
276 if (s
->sysv_start_priority
< 0)
279 /* For each pair of services where at least one lacks a LSB
280 * header, we use the start priority value to order things. */
282 LIST_FOREACH(units_per_type
, other
, UNIT(s
)->meta
.manager
->units_per_type
[UNIT_SERVICE
]) {
286 t
= (Service
*) other
;
291 if (t
->sysv_start_priority
< 0)
294 /* If both units have modern headers we don't care
295 * about the priorities */
296 if ((!s
->sysv_path
|| s
->sysv_has_lsb
) &&
297 (!t
->sysv_path
|| t
->sysv_has_lsb
))
300 if (t
->sysv_start_priority
< s
->sysv_start_priority
)
302 else if (t
->sysv_start_priority
> s
->sysv_start_priority
)
307 /* FIXME: Maybe we should compare the name here lexicographically? */
309 if (!(r
= unit_add_dependency(UNIT(s
), d
, UNIT(t
), true)) < 0)
316 static ExecCommand
*exec_command_new(const char *path
, const char *arg1
) {
319 if (!(c
= new0(ExecCommand
, 1)))
322 if (!(c
->path
= strdup(path
))) {
327 if (!(c
->argv
= strv_new(path
, arg1
, NULL
))) {
336 static int sysv_exec_commands(Service
*s
) {
340 assert(s
->sysv_path
);
342 if (!(c
= exec_command_new(s
->sysv_path
, "start")))
344 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_START
, c
);
346 if (!(c
= exec_command_new(s
->sysv_path
, "stop")))
348 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_STOP
, c
);
350 if (!(c
= exec_command_new(s
->sysv_path
, "reload")))
352 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_RELOAD
, c
);
357 static int service_load_sysv_path(Service
*s
, const char *path
) {
374 if (!(f
= fopen(path
, "re"))) {
375 r
= errno
== ENOENT
? 0 : -errno
;
380 if (!(s
->sysv_path
= strdup(path
))) {
386 char l
[LINE_MAX
], *t
;
388 if (!fgets(l
, sizeof(l
), f
)) {
393 log_error("Failed to read configuration file '%s': %s", path
, strerror(-r
));
403 if (state
== NORMAL
&& streq(t
, "### BEGIN INIT INFO")) {
405 s
->sysv_has_lsb
= true;
409 if ((state
== LSB_DESCRIPTION
|| state
== LSB
) && streq(t
, "### END INIT INFO")) {
415 t
+= strspn(t
, WHITESPACE
);
417 if (state
== NORMAL
) {
419 /* Try to parse Red Hat style chkconfig headers */
421 if (startswith_no_case(t
, "chkconfig:")) {
423 char runlevels
[16], *k
;
427 if (sscanf(t
+10, "%15s %i %*i",
429 &start_priority
) != 2) {
431 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path
, line
);
435 /* A start priority gathered from the
436 * symlink farms is preferred over the
437 * data from the LSB header. */
438 if (start_priority
< 0 || start_priority
> 99)
439 log_warning("[%s:%u] Start priority out of range. Ignoring.", path
, line
);
440 else if (s
->sysv_start_priority
< 0)
441 s
->sysv_start_priority
= start_priority
;
443 char_array_0(runlevels
);
444 k
= delete_chars(runlevels
, WHITESPACE
"-");
449 if (!(d
= strdup(k
))) {
454 free(s
->sysv_runlevels
);
455 s
->sysv_runlevels
= d
;
458 } else if (startswith_no_case(t
, "description:")) {
460 size_t k
= strlen(t
);
463 if (t
[k
-1] == '\\') {
468 if (!(d
= strdup(strstrip(t
+12)))) {
473 free(u
->meta
.description
);
474 u
->meta
.description
= d
;
476 } else if (startswith_no_case(t
, "pidfile:")) {
483 if (!path_is_absolute(fn
)) {
484 log_warning("[%s:%u] PID file not absolute. Ignoring.", path
, line
);
488 if (!(fn
= strdup(fn
))) {
497 } else if (state
== DESCRIPTION
) {
499 /* Try to parse Red Hat style description
502 size_t k
= strlen(t
);
510 assert(u
->meta
.description
);
511 if (asprintf(&d
, "%s %s", u
->meta
.description
, strstrip(t
)) < 0) {
516 free(u
->meta
.description
);
517 u
->meta
.description
= d
;
519 } else if (state
== LSB
|| state
== LSB_DESCRIPTION
) {
521 if (startswith_no_case(t
, "Provides:")) {
527 FOREACH_WORD(w
, z
, t
+9, i
) {
530 if (!(n
= strndup(w
, z
))) {
535 r
= sysv_translate_facility(n
, &m
);
544 if (unit_name_to_type(m
) == UNIT_SERVICE
)
545 r
= unit_add_name(u
, m
);
547 if ((r
= unit_add_dependency_by_name_inverse(u
, UNIT_REQUIRES
, m
, NULL
, true)) >= 0)
548 r
= unit_add_dependency_by_name(u
, UNIT_BEFORE
, m
, NULL
, true);
557 } else if (startswith_no_case(t
, "Required-Start:") ||
558 startswith_no_case(t
, "Should-Start:") ||
559 startswith_no_case(t
, "X-Start-Before:") ||
560 startswith_no_case(t
, "X-Start-After:")) {
566 FOREACH_WORD(w
, z
, strchr(t
, ':')+1, i
) {
569 if (!(n
= strndup(w
, z
))) {
574 r
= sysv_translate_facility(n
, &m
);
583 r
= unit_add_dependency_by_name(u
, startswith_no_case(t
, "X-Start-Before:") ? UNIT_BEFORE
: UNIT_AFTER
, m
, NULL
, true);
589 } else if (startswith_no_case(t
, "Default-Start:")) {
594 k
= delete_chars(t
+14, WHITESPACE
"-");
597 if (!(d
= strdup(k
))) {
602 free(s
->sysv_runlevels
);
603 s
->sysv_runlevels
= d
;
606 } else if (startswith_no_case(t
, "Description:")) {
609 state
= LSB_DESCRIPTION
;
611 if (!(d
= strdup(strstrip(t
+12)))) {
616 free(u
->meta
.description
);
617 u
->meta
.description
= d
;
619 } else if (startswith_no_case(t
, "Short-Description:") &&
620 !u
->meta
.description
) {
623 /* We use the short description only
624 * if no long description is set. */
628 if (!(d
= strdup(strstrip(t
+18)))) {
633 u
->meta
.description
= d
;
635 } else if (startswith_no_case(t
, "X-Interactive:")) {
638 if ((b
= parse_boolean(strstrip(t
+14))) < 0) {
639 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path
, line
);
644 s
->exec_context
.std_input
= EXEC_INPUT_TTY
;
646 s
->exec_context
.std_input
= EXEC_INPUT_NULL
;
648 } else if (state
== LSB_DESCRIPTION
) {
650 if (startswith(l
, "#\t") || startswith(l
, "# ")) {
653 assert(u
->meta
.description
);
654 if (asprintf(&d
, "%s %s", u
->meta
.description
, t
) < 0) {
659 free(u
->meta
.description
);
660 u
->meta
.description
= d
;
667 if ((r
= sysv_exec_commands(s
)) < 0)
670 if (!s
->sysv_runlevels
|| chars_intersect(RUNLEVELS_UP
, s
->sysv_runlevels
)) {
671 /* If there a runlevels configured for this service
672 * but none of the standard ones, then we assume this
673 * is some special kind of service (which might be
674 * needed for early boot) and don't create any links
677 if ((r
= unit_add_dependency_by_name(u
, UNIT_REQUIRES
, SPECIAL_BASIC_TARGET
, NULL
, true)) < 0 ||
678 (r
= unit_add_dependency_by_name(u
, UNIT_AFTER
, SPECIAL_BASIC_TARGET
, NULL
, true)) < 0)
682 /* Don't timeout special services during boot (like fsck) */
685 /* Special setting for all SysV services */
686 s
->type
= SERVICE_FORKING
;
687 s
->valid_no_process
= true;
688 s
->kill_mode
= KILL_PROCESS_GROUP
;
689 s
->restart
= SERVICE_ONCE
;
691 u
->meta
.load_state
= UNIT_LOADED
;
702 static int service_load_sysv_name(Service
*s
, const char *name
) {
708 /* For SysV services we strip the boot. or .sh
709 * prefixes/suffixes. */
710 if (startswith(name
, "boot.") ||
711 endswith(name
, ".sh.service"))
714 STRV_FOREACH(p
, UNIT(s
)->meta
.manager
->lookup_paths
.sysvinit_path
) {
718 if (asprintf(&path
, "%s/%s", *p
, name
) < 0)
721 assert(endswith(path
, ".service"));
722 path
[strlen(path
)-8] = 0;
724 r
= service_load_sysv_path(s
, path
);
726 if (r
>= 0 && UNIT(s
)->meta
.load_state
== UNIT_STUB
) {
727 /* Try Debian style xxx.sh source'able init scripts */
729 r
= service_load_sysv_path(s
, path
);
734 if (r
>= 0 && UNIT(s
)->meta
.load_state
== UNIT_STUB
) {
735 /* Try SUSE style boot.xxx init scripts */
737 if (asprintf(&path
, "%s/boot.%s", *p
, name
) < 0)
740 path
[strlen(path
)-8] = 0;
741 r
= service_load_sysv_path(s
, path
);
748 if ((UNIT(s
)->meta
.load_state
!= UNIT_STUB
))
755 static int service_load_sysv(Service
*s
) {
762 /* Load service data from SysV init scripts, preferably with
765 if (strv_isempty(UNIT(s
)->meta
.manager
->lookup_paths
.sysvinit_path
))
768 if ((t
= UNIT(s
)->meta
.id
))
769 if ((r
= service_load_sysv_name(s
, t
)) < 0)
772 if (UNIT(s
)->meta
.load_state
== UNIT_STUB
)
773 SET_FOREACH(t
, UNIT(s
)->meta
.names
, i
) {
774 if (t
== UNIT(s
)->meta
.id
)
777 if ((r
== service_load_sysv_name(s
, t
)) < 0)
780 if (UNIT(s
)->meta
.load_state
!= UNIT_STUB
)
787 static int service_add_bus_name(Service
*s
) {
794 if (asprintf(&n
, "dbus-%s.service", s
->bus_name
) < 0)
797 r
= unit_merge_by_name(UNIT(s
), n
);
803 static int service_verify(Service
*s
) {
806 if (UNIT(s
)->meta
.load_state
!= UNIT_LOADED
)
809 if (!s
->exec_command
[SERVICE_EXEC_START
]) {
810 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s
)->meta
.id
);
814 if (s
->exec_command
[SERVICE_EXEC_START
]->command_next
) {
815 log_error("%s has more than one ExecStart setting. Refusing.", UNIT(s
)->meta
.id
);
819 if (s
->type
== SERVICE_DBUS
&& !s
->bus_name
) {
820 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s
)->meta
.id
);
827 static int service_load(Unit
*u
) {
829 Service
*s
= SERVICE(u
);
833 /* Load a .service file */
834 if ((r
= unit_load_fragment(u
)) < 0)
837 /* Load a classic init script as a fallback, if we couldn't find anything */
838 if (u
->meta
.load_state
== UNIT_STUB
)
839 if ((r
= service_load_sysv(s
)) < 0)
842 /* Still nothing found? Then let's give up */
843 if (u
->meta
.load_state
== UNIT_STUB
)
846 /* We were able to load something, then let's add in the
847 * dropin directories. */
848 if ((r
= unit_load_dropin(unit_follow_merge(u
))) < 0)
851 /* This is a new unit? Then let's add in some extras */
852 if (u
->meta
.load_state
== UNIT_LOADED
) {
853 if ((r
= unit_add_exec_dependencies(u
, &s
->exec_context
)) < 0)
856 if ((r
= unit_add_default_cgroup(u
)) < 0)
859 if ((r
= sysv_fix_order(s
)) < 0)
863 if ((r
= service_add_bus_name(s
)) < 0)
866 if ((r
= unit_watch_bus_name(u
, s
->bus_name
)) < 0)
870 if (s
->type
== SERVICE_NOTIFY
&& s
->notify_access
== NOTIFY_NONE
)
871 s
->notify_access
= NOTIFY_MAIN
;
874 return service_verify(s
);
877 static void service_dump(Unit
*u
, FILE *f
, const char *prefix
) {
879 ServiceExecCommand c
;
880 Service
*s
= SERVICE(u
);
886 p2
= strappend(prefix
, "\t");
887 prefix2
= p2
? p2
: prefix
;
890 "%sService State: %s\n"
891 "%sPermissionsStartOnly: %s\n"
892 "%sRootDirectoryStartOnly: %s\n"
893 "%sValidNoProcess: %s\n"
896 "%sNotifyAccess: %s\n",
897 prefix
, service_state_to_string(s
->state
),
898 prefix
, yes_no(s
->permissions_start_only
),
899 prefix
, yes_no(s
->root_directory_start_only
),
900 prefix
, yes_no(s
->valid_no_process
),
901 prefix
, kill_mode_to_string(s
->kill_mode
),
902 prefix
, service_type_to_string(s
->type
),
903 prefix
, notify_access_to_string(s
->notify_access
));
905 if (s
->control_pid
> 0)
907 "%sControl PID: %llu\n",
908 prefix
, (unsigned long long) s
->control_pid
);
912 "%sMain PID: %llu\n",
913 prefix
, (unsigned long long) s
->main_pid
);
918 prefix
, s
->pid_file
);
923 "%sBus Name Good: %s\n",
925 prefix
, yes_no(s
->bus_name_good
));
927 exec_context_dump(&s
->exec_context
, f
, prefix
);
929 for (c
= 0; c
< _SERVICE_EXEC_COMMAND_MAX
; c
++) {
931 if (!s
->exec_command
[c
])
934 fprintf(f
, "%s-> %s:\n",
935 prefix
, service_exec_command_to_string(c
));
937 exec_command_dump_list(s
->exec_command
[c
], f
, prefix2
);
942 "%sSysV Init Script Path: %s\n"
943 "%sSysV Init Script has LSB Header: %s\n",
944 prefix
, s
->sysv_path
,
945 prefix
, yes_no(s
->sysv_has_lsb
));
947 if (s
->sysv_start_priority
>= 0)
949 "%sSysVStartPriority: %i\n",
950 prefix
, s
->sysv_start_priority
);
952 if (s
->sysv_runlevels
)
953 fprintf(f
, "%sSysVRunLevels: %s\n",
954 prefix
, s
->sysv_runlevels
);
957 fprintf(f
, "%sStatus Text: %s\n",
958 prefix
, s
->status_text
);
963 static int service_load_pid_file(Service
*s
) {
970 if (s
->main_pid_known
)
973 assert(s
->main_pid
<= 0);
978 if ((r
= read_one_line_file(s
->pid_file
, &k
)) < 0)
981 r
= parse_pid(k
, &pid
);
987 if (kill(pid
, 0) < 0 && errno
!= EPERM
) {
988 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
989 (unsigned long) pid
, s
->pid_file
);
993 if ((r
= service_set_main_pid(s
, pid
)) < 0)
996 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
997 /* FIXME: we need to do something here */
1003 static int service_get_sockets(Service
*s
, Set
**_set
) {
1012 if (s
->socket_fd
>= 0)
1015 /* Collects all Socket objects that belong to this
1016 * service. Note that a service might have multiple sockets
1017 * via multiple names. */
1019 if (!(set
= set_new(NULL
, NULL
)))
1022 SET_FOREACH(t
, UNIT(s
)->meta
.names
, i
) {
1026 /* Look for all socket objects that go by any of our
1027 * units and collect their fds */
1029 if (!(k
= unit_name_change_suffix(t
, ".socket"))) {
1034 p
= manager_get_unit(UNIT(s
)->meta
.manager
, k
);
1040 if ((r
= set_put(set
, p
)) < 0)
1052 static int service_notify_sockets_dead(Service
*s
) {
1060 if (s
->socket_fd
>= 0)
1063 /* Notifies all our sockets when we die */
1064 if ((r
= service_get_sockets(s
, &set
)) < 0)
1067 SET_FOREACH(sock
, set
, i
)
1068 socket_notify_service_dead(sock
);
1075 static void service_set_state(Service
*s
, ServiceState state
) {
1076 ServiceState old_state
;
1079 old_state
= s
->state
;
1082 if (state
!= SERVICE_START_PRE
&&
1083 state
!= SERVICE_START
&&
1084 state
!= SERVICE_START_POST
&&
1085 state
!= SERVICE_RELOAD
&&
1086 state
!= SERVICE_STOP
&&
1087 state
!= SERVICE_STOP_SIGTERM
&&
1088 state
!= SERVICE_STOP_SIGKILL
&&
1089 state
!= SERVICE_STOP_POST
&&
1090 state
!= SERVICE_FINAL_SIGTERM
&&
1091 state
!= SERVICE_FINAL_SIGKILL
&&
1092 state
!= SERVICE_AUTO_RESTART
)
1093 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1095 if (state
!= SERVICE_START
&&
1096 state
!= SERVICE_START_POST
&&
1097 state
!= SERVICE_RUNNING
&&
1098 state
!= SERVICE_RELOAD
&&
1099 state
!= SERVICE_STOP
&&
1100 state
!= SERVICE_STOP_SIGTERM
&&
1101 state
!= SERVICE_STOP_SIGKILL
)
1102 service_unwatch_main_pid(s
);
1104 if (state
!= SERVICE_START_PRE
&&
1105 state
!= SERVICE_START
&&
1106 state
!= SERVICE_START_POST
&&
1107 state
!= SERVICE_RELOAD
&&
1108 state
!= SERVICE_STOP
&&
1109 state
!= SERVICE_STOP_SIGTERM
&&
1110 state
!= SERVICE_STOP_SIGKILL
&&
1111 state
!= SERVICE_STOP_POST
&&
1112 state
!= SERVICE_FINAL_SIGTERM
&&
1113 state
!= SERVICE_FINAL_SIGKILL
) {
1114 service_unwatch_control_pid(s
);
1115 s
->control_command
= NULL
;
1116 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
1119 if (state
== SERVICE_DEAD
||
1120 state
== SERVICE_STOP
||
1121 state
== SERVICE_STOP_SIGTERM
||
1122 state
== SERVICE_STOP_SIGKILL
||
1123 state
== SERVICE_STOP_POST
||
1124 state
== SERVICE_FINAL_SIGTERM
||
1125 state
== SERVICE_FINAL_SIGKILL
||
1126 state
== SERVICE_MAINTENANCE
||
1127 state
== SERVICE_AUTO_RESTART
)
1128 service_notify_sockets_dead(s
);
1130 if (state
!= SERVICE_START_PRE
&&
1131 state
!= SERVICE_START
&&
1132 state
!= SERVICE_START_POST
&&
1133 state
!= SERVICE_RUNNING
&&
1134 state
!= SERVICE_RELOAD
&&
1135 state
!= SERVICE_STOP
&&
1136 state
!= SERVICE_STOP_SIGTERM
&&
1137 state
!= SERVICE_STOP_SIGKILL
&&
1138 state
!= SERVICE_STOP_POST
&&
1139 state
!= SERVICE_FINAL_SIGTERM
&&
1140 state
!= SERVICE_FINAL_SIGKILL
&&
1141 !(state
== SERVICE_DEAD
&& UNIT(s
)->meta
.job
)) {
1142 service_close_socket_fd(s
);
1143 service_connection_unref(s
);
1146 if (old_state
!= state
)
1147 log_debug("%s changed %s -> %s", UNIT(s
)->meta
.id
, service_state_to_string(old_state
), service_state_to_string(state
));
1149 unit_notify(UNIT(s
), state_translation_table
[old_state
], state_translation_table
[state
]);
1152 static int service_coldplug(Unit
*u
) {
1153 Service
*s
= SERVICE(u
);
1157 assert(s
->state
== SERVICE_DEAD
);
1159 if (s
->deserialized_state
!= s
->state
) {
1161 if (s
->deserialized_state
== SERVICE_START_PRE
||
1162 s
->deserialized_state
== SERVICE_START
||
1163 s
->deserialized_state
== SERVICE_START_POST
||
1164 s
->deserialized_state
== SERVICE_RELOAD
||
1165 s
->deserialized_state
== SERVICE_STOP
||
1166 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1167 s
->deserialized_state
== SERVICE_STOP_SIGKILL
||
1168 s
->deserialized_state
== SERVICE_STOP_POST
||
1169 s
->deserialized_state
== SERVICE_FINAL_SIGTERM
||
1170 s
->deserialized_state
== SERVICE_FINAL_SIGKILL
||
1171 s
->deserialized_state
== SERVICE_AUTO_RESTART
) {
1173 if (s
->deserialized_state
== SERVICE_AUTO_RESTART
|| s
->timeout_usec
> 0) {
1176 k
= s
->deserialized_state
== SERVICE_AUTO_RESTART
? s
->restart_usec
: s
->timeout_usec
;
1178 if ((r
= unit_watch_timer(UNIT(s
), k
, &s
->timer_watch
)) < 0)
1183 if ((s
->deserialized_state
== SERVICE_START
&&
1184 (s
->type
== SERVICE_FORKING
||
1185 s
->type
== SERVICE_DBUS
||
1186 s
->type
== SERVICE_FINISH
||
1187 s
->type
== SERVICE_NOTIFY
)) ||
1188 s
->deserialized_state
== SERVICE_START_POST
||
1189 s
->deserialized_state
== SERVICE_RUNNING
||
1190 s
->deserialized_state
== SERVICE_RELOAD
||
1191 s
->deserialized_state
== SERVICE_STOP
||
1192 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1193 s
->deserialized_state
== SERVICE_STOP_SIGKILL
)
1194 if (s
->main_pid
> 0)
1195 if ((r
= unit_watch_pid(UNIT(s
), s
->main_pid
)) < 0)
1198 if (s
->deserialized_state
== SERVICE_START_PRE
||
1199 s
->deserialized_state
== SERVICE_START
||
1200 s
->deserialized_state
== SERVICE_START_POST
||
1201 s
->deserialized_state
== SERVICE_RELOAD
||
1202 s
->deserialized_state
== SERVICE_STOP
||
1203 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1204 s
->deserialized_state
== SERVICE_STOP_SIGKILL
||
1205 s
->deserialized_state
== SERVICE_STOP_POST
||
1206 s
->deserialized_state
== SERVICE_FINAL_SIGTERM
||
1207 s
->deserialized_state
== SERVICE_FINAL_SIGKILL
)
1208 if (s
->control_pid
> 0)
1209 if ((r
= unit_watch_pid(UNIT(s
), s
->control_pid
)) < 0)
1212 service_set_state(s
, s
->deserialized_state
);
1218 static int service_collect_fds(Service
*s
, int **fds
, unsigned *n_fds
) {
1222 unsigned rn_fds
= 0;
1230 if (s
->socket_fd
>= 0)
1233 if ((r
= service_get_sockets(s
, &set
)) < 0)
1236 SET_FOREACH(sock
, set
, i
) {
1240 if ((r
= socket_collect_fds(sock
, &cfds
, &cn_fds
)) < 0)
1252 if (!(t
= new(int, rn_fds
+cn_fds
))) {
1258 memcpy(t
, rfds
, rn_fds
);
1259 memcpy(t
+rn_fds
, cfds
, cn_fds
);
1264 rn_fds
= rn_fds
+cn_fds
;
1282 static int service_spawn(
1287 bool apply_permissions
,
1289 bool set_notify_socket
,
1294 int *fds
= NULL
, *fdsbuf
= NULL
;
1296 char **argv
= NULL
, **env
= NULL
;
1303 s
->exec_context
.std_input
== EXEC_INPUT_SOCKET
||
1304 s
->exec_context
.std_output
== EXEC_OUTPUT_SOCKET
||
1305 s
->exec_context
.std_error
== EXEC_OUTPUT_SOCKET
) {
1307 if (s
->socket_fd
>= 0) {
1308 fds
= &s
->socket_fd
;
1311 if ((r
= service_collect_fds(s
, &fdsbuf
, &n_fds
)) < 0)
1318 if (timeout
&& s
->timeout_usec
) {
1319 if ((r
= unit_watch_timer(UNIT(s
), s
->timeout_usec
, &s
->timer_watch
)) < 0)
1322 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1324 if (!(argv
= unit_full_printf_strv(UNIT(s
), c
->argv
))) {
1329 if (set_notify_socket
) {
1332 if (asprintf(&t
, "NOTIFY_SOCKET=@%s", s
->meta
.manager
->notify_socket
) < 0) {
1337 env
= strv_env_set(s
->meta
.manager
->environment
, t
);
1345 env
= s
->meta
.manager
->environment
;
1354 UNIT(s
)->meta
.manager
->confirm_spawn
,
1355 UNIT(s
)->meta
.cgroup_bondings
,
1361 if (set_notify_socket
)
1371 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1372 /* FIXME: we need to do something here */
1384 if (set_notify_socket
)
1388 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1393 static int main_pid_good(Service
*s
) {
1396 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1399 /* If we know the pid file, then lets just check if it is
1401 if (s
->main_pid_known
)
1402 return s
->main_pid
> 0;
1404 /* We don't know the pid */
1408 static int control_pid_good(Service
*s
) {
1411 return s
->control_pid
> 0;
1414 static int cgroup_good(Service
*s
) {
1419 if ((r
= cgroup_bonding_is_empty_list(UNIT(s
)->meta
.cgroup_bondings
)) < 0)
1425 static void service_enter_dead(Service
*s
, bool success
, bool allow_restart
) {
1432 if (allow_restart
&&
1434 (s
->restart
== SERVICE_RESTART_ALWAYS
||
1435 (s
->restart
== SERVICE_RESTART_ON_SUCCESS
&& !s
->failure
))) {
1437 if ((r
= unit_watch_timer(UNIT(s
), s
->restart_usec
, &s
->timer_watch
)) < 0)
1440 service_set_state(s
, SERVICE_AUTO_RESTART
);
1442 service_set_state(s
, s
->failure
? SERVICE_MAINTENANCE
: SERVICE_DEAD
);
1447 log_warning("%s failed to run install restart timer: %s", UNIT(s
)->meta
.id
, strerror(-r
));
1448 service_enter_dead(s
, false, false);
1451 static void service_enter_signal(Service
*s
, ServiceState state
, bool success
);
1453 static void service_enter_stop_post(Service
*s
, bool success
) {
1460 service_unwatch_control_pid(s
);
1462 s
->control_command_id
= SERVICE_EXEC_STOP_POST
;
1463 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP_POST
])) {
1464 if ((r
= service_spawn(s
,
1468 !s
->permissions_start_only
,
1469 !s
->root_directory_start_only
,
1471 &s
->control_pid
)) < 0)
1475 service_set_state(s
, SERVICE_STOP_POST
);
1477 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, true);
1482 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s
)->meta
.id
, strerror(-r
));
1483 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1486 static void service_enter_signal(Service
*s
, ServiceState state
, bool success
) {
1495 if (s
->kill_mode
!= KILL_NONE
) {
1496 int sig
= (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_FINAL_SIGTERM
) ? SIGTERM
: SIGKILL
;
1498 if (s
->kill_mode
== KILL_CONTROL_GROUP
) {
1500 if ((r
= cgroup_bonding_kill_list(UNIT(s
)->meta
.cgroup_bondings
, sig
)) < 0) {
1501 if (r
!= -EAGAIN
&& r
!= -ESRCH
)
1510 if (s
->main_pid
> 0) {
1511 if (kill(s
->kill_mode
== KILL_PROCESS
? s
->main_pid
: -s
->main_pid
, sig
) < 0 && errno
!= ESRCH
)
1517 if (s
->control_pid
> 0) {
1518 if (kill(s
->kill_mode
== KILL_PROCESS
? s
->control_pid
: -s
->control_pid
, sig
) < 0 && errno
!= ESRCH
)
1529 if (sent
&& (s
->main_pid
> 0 || s
->control_pid
> 0)) {
1530 if (s
->timeout_usec
> 0)
1531 if ((r
= unit_watch_timer(UNIT(s
), s
->timeout_usec
, &s
->timer_watch
)) < 0)
1534 service_set_state(s
, state
);
1535 } else if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
1536 service_enter_stop_post(s
, true);
1538 service_enter_dead(s
, true, true);
1543 log_warning("%s failed to kill processes: %s", UNIT(s
)->meta
.id
, strerror(-r
));
1545 if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
1546 service_enter_stop_post(s
, false);
1548 service_enter_dead(s
, false, true);
1551 static void service_enter_stop(Service
*s
, bool success
) {
1559 service_unwatch_control_pid(s
);
1561 s
->control_command_id
= SERVICE_EXEC_STOP
;
1562 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP
])) {
1563 if ((r
= service_spawn(s
,
1567 !s
->permissions_start_only
,
1568 !s
->root_directory_start_only
,
1570 &s
->control_pid
)) < 0)
1573 service_set_state(s
, SERVICE_STOP
);
1575 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, true);
1580 log_warning("%s failed to run 'stop' task: %s", UNIT(s
)->meta
.id
, strerror(-r
));
1581 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
1584 static void service_enter_running(Service
*s
, bool success
) {
1590 if (main_pid_good(s
) != 0 &&
1591 cgroup_good(s
) != 0 &&
1592 (s
->bus_name_good
|| s
->type
!= SERVICE_DBUS
))
1593 service_set_state(s
, SERVICE_RUNNING
);
1594 else if (s
->valid_no_process
)
1595 service_set_state(s
, SERVICE_EXITED
);
1597 service_enter_stop(s
, true);
1600 static void service_enter_start_post(Service
*s
) {
1604 service_unwatch_control_pid(s
);
1606 s
->control_command_id
= SERVICE_EXEC_START_POST
;
1607 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_POST
])) {
1608 if ((r
= service_spawn(s
,
1612 !s
->permissions_start_only
,
1613 !s
->root_directory_start_only
,
1615 &s
->control_pid
)) < 0)
1618 service_set_state(s
, SERVICE_START_POST
);
1620 service_enter_running(s
, true);
1625 log_warning("%s failed to run 'start-post' task: %s", UNIT(s
)->meta
.id
, strerror(-r
));
1626 service_enter_stop(s
, false);
1629 static void service_enter_start(Service
*s
) {
1635 assert(s
->exec_command
[SERVICE_EXEC_START
]);
1636 assert(!s
->exec_command
[SERVICE_EXEC_START
]->command_next
);
1638 if (s
->type
== SERVICE_FORKING
)
1639 service_unwatch_control_pid(s
);
1641 service_unwatch_main_pid(s
);
1643 if ((r
= service_spawn(s
,
1644 s
->exec_command
[SERVICE_EXEC_START
],
1645 s
->type
== SERVICE_FORKING
|| s
->type
== SERVICE_DBUS
|| s
->type
== SERVICE_NOTIFY
,
1649 s
->notify_access
!= NOTIFY_NONE
,
1653 if (s
->type
== SERVICE_SIMPLE
) {
1654 /* For simple services we immediately start
1655 * the START_POST binaries. */
1657 service_set_main_pid(s
, pid
);
1658 service_enter_start_post(s
);
1660 } else if (s
->type
== SERVICE_FORKING
) {
1662 /* For forking services we wait until the start
1663 * process exited. */
1665 s
->control_command_id
= SERVICE_EXEC_START
;
1666 s
->control_command
= s
->exec_command
[SERVICE_EXEC_START
];
1668 s
->control_pid
= pid
;
1669 service_set_state(s
, SERVICE_START
);
1671 } else if (s
->type
== SERVICE_FINISH
||
1672 s
->type
== SERVICE_DBUS
||
1673 s
->type
== SERVICE_NOTIFY
) {
1675 /* For finishing services we wait until the start
1676 * process exited, too, but it is our main process. */
1678 /* For D-Bus services we know the main pid right away,
1679 * but wait for the bus name to appear on the
1680 * bus. Notify services are similar. */
1682 service_set_main_pid(s
, pid
);
1683 service_set_state(s
, SERVICE_START
);
1685 assert_not_reached("Unknown service type");
1690 log_warning("%s failed to run 'start' task: %s", UNIT(s
)->meta
.id
, strerror(-r
));
1691 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1694 static void service_enter_start_pre(Service
*s
) {
1699 service_unwatch_control_pid(s
);
1701 s
->control_command_id
= SERVICE_EXEC_START_PRE
;
1702 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_PRE
])) {
1703 if ((r
= service_spawn(s
,
1707 !s
->permissions_start_only
,
1708 !s
->root_directory_start_only
,
1710 &s
->control_pid
)) < 0)
1713 service_set_state(s
, SERVICE_START_PRE
);
1715 service_enter_start(s
);
1720 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s
)->meta
.id
, strerror(-r
));
1721 service_enter_dead(s
, false, true);
1724 static void service_enter_restart(Service
*s
) {
1728 service_enter_dead(s
, true, false);
1730 if ((r
= manager_add_job(UNIT(s
)->meta
.manager
, JOB_START
, UNIT(s
), JOB_FAIL
, false, NULL
)) < 0)
1733 log_debug("%s scheduled restart job.", UNIT(s
)->meta
.id
);
1738 log_warning("%s failed to schedule restart job: %s", UNIT(s
)->meta
.id
, strerror(-r
));
1739 service_enter_dead(s
, false, false);
1742 static void service_enter_reload(Service
*s
) {
1747 service_unwatch_control_pid(s
);
1749 s
->control_command_id
= SERVICE_EXEC_RELOAD
;
1750 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_RELOAD
])) {
1751 if ((r
= service_spawn(s
,
1755 !s
->permissions_start_only
,
1756 !s
->root_directory_start_only
,
1758 &s
->control_pid
)) < 0)
1761 service_set_state(s
, SERVICE_RELOAD
);
1763 service_enter_running(s
, true);
1768 log_warning("%s failed to run 'reload' task: %s", UNIT(s
)->meta
.id
, strerror(-r
));
1769 service_enter_stop(s
, false);
1772 static void service_run_next(Service
*s
, bool success
) {
1776 assert(s
->control_command
);
1777 assert(s
->control_command
->command_next
);
1782 s
->control_command
= s
->control_command
->command_next
;
1784 service_unwatch_control_pid(s
);
1786 if ((r
= service_spawn(s
,
1790 !s
->permissions_start_only
,
1791 !s
->root_directory_start_only
,
1793 &s
->control_pid
)) < 0)
1799 log_warning("%s failed to run next task: %s", UNIT(s
)->meta
.id
, strerror(-r
));
1801 if (s
->state
== SERVICE_START_PRE
)
1802 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1803 else if (s
->state
== SERVICE_STOP
)
1804 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
1805 else if (s
->state
== SERVICE_STOP_POST
)
1806 service_enter_dead(s
, false, true);
1808 service_enter_stop(s
, false);
1811 static int service_start(Unit
*u
) {
1812 Service
*s
= SERVICE(u
);
1816 /* We cannot fulfill this request right now, try again later
1818 if (s
->state
== SERVICE_STOP
||
1819 s
->state
== SERVICE_STOP_SIGTERM
||
1820 s
->state
== SERVICE_STOP_SIGKILL
||
1821 s
->state
== SERVICE_STOP_POST
||
1822 s
->state
== SERVICE_FINAL_SIGTERM
||
1823 s
->state
== SERVICE_FINAL_SIGKILL
)
1826 /* Already on it! */
1827 if (s
->state
== SERVICE_START_PRE
||
1828 s
->state
== SERVICE_START
||
1829 s
->state
== SERVICE_START_POST
)
1832 assert(s
->state
== SERVICE_DEAD
|| s
->state
== SERVICE_MAINTENANCE
|| s
->state
== SERVICE_AUTO_RESTART
);
1834 /* Make sure we don't enter a busy loop of some kind. */
1835 if (!ratelimit_test(&s
->ratelimit
)) {
1836 log_warning("%s start request repeated too quickly, refusing to start.", u
->meta
.id
);
1841 s
->main_pid_known
= false;
1842 s
->allow_restart
= true;
1844 service_enter_start_pre(s
);
1848 static int service_stop(Unit
*u
) {
1849 Service
*s
= SERVICE(u
);
1853 /* Cannot do this now */
1854 if (s
->state
== SERVICE_START_PRE
||
1855 s
->state
== SERVICE_START
||
1856 s
->state
== SERVICE_START_POST
||
1857 s
->state
== SERVICE_RELOAD
)
1861 if (s
->state
== SERVICE_STOP
||
1862 s
->state
== SERVICE_STOP_SIGTERM
||
1863 s
->state
== SERVICE_STOP_SIGKILL
||
1864 s
->state
== SERVICE_STOP_POST
||
1865 s
->state
== SERVICE_FINAL_SIGTERM
||
1866 s
->state
== SERVICE_FINAL_SIGKILL
)
1869 if (s
->state
== SERVICE_AUTO_RESTART
) {
1870 service_set_state(s
, SERVICE_DEAD
);
1874 assert(s
->state
== SERVICE_RUNNING
|| s
->state
== SERVICE_EXITED
);
1876 /* This is a user request, so don't do restarts on this
1878 s
->allow_restart
= false;
1880 service_enter_stop(s
, true);
1884 static int service_reload(Unit
*u
) {
1885 Service
*s
= SERVICE(u
);
1889 assert(s
->state
== SERVICE_RUNNING
|| s
->state
== SERVICE_EXITED
);
1891 service_enter_reload(s
);
1895 static bool service_can_reload(Unit
*u
) {
1896 Service
*s
= SERVICE(u
);
1900 return !!s
->exec_command
[SERVICE_EXEC_RELOAD
];
1903 static int service_serialize(Unit
*u
, FILE *f
, FDSet
*fds
) {
1904 Service
*s
= SERVICE(u
);
1910 unit_serialize_item(u
, f
, "state", service_state_to_string(s
->state
));
1911 unit_serialize_item(u
, f
, "failure", yes_no(s
->failure
));
1913 if (s
->control_pid
> 0)
1914 unit_serialize_item_format(u
, f
, "control-pid", "%lu", (unsigned long) s
->control_pid
);
1916 if (s
->main_pid_known
&& s
->main_pid
> 0)
1917 unit_serialize_item_format(u
, f
, "main-pid", "%lu", (unsigned long) s
->main_pid
);
1919 unit_serialize_item(u
, f
, "main-pid-known", yes_no(s
->main_pid_known
));
1921 /* There's a minor uncleanliness here: if there are multiple
1922 * commands attached here, we will start from the first one
1924 if (s
->control_command_id
>= 0)
1925 unit_serialize_item(u
, f
, "control-command", service_exec_command_to_string(s
->control_command_id
));
1927 if (s
->socket_fd
>= 0) {
1930 if ((copy
= fdset_put_dup(fds
, s
->socket_fd
)) < 0)
1933 unit_serialize_item_format(u
, f
, "socket-fd", "%i", copy
);
1939 static int service_deserialize_item(Unit
*u
, const char *key
, const char *value
, FDSet
*fds
) {
1940 Service
*s
= SERVICE(u
);
1948 if (streq(key
, "state")) {
1951 if ((state
= service_state_from_string(value
)) < 0)
1952 log_debug("Failed to parse state value %s", value
);
1954 s
->deserialized_state
= state
;
1955 } else if (streq(key
, "failure")) {
1958 if ((b
= parse_boolean(value
)) < 0)
1959 log_debug("Failed to parse failure value %s", value
);
1961 s
->failure
= b
|| s
->failure
;
1962 } else if (streq(key
, "control-pid")) {
1965 if ((r
= parse_pid(value
, &pid
)) < 0)
1966 log_debug("Failed to parse control-pid value %s", value
);
1968 s
->control_pid
= pid
;
1969 } else if (streq(key
, "main-pid")) {
1972 if ((r
= parse_pid(value
, &pid
)) < 0)
1973 log_debug("Failed to parse main-pid value %s", value
);
1975 service_set_main_pid(s
, (pid_t
) pid
);
1976 } else if (streq(key
, "main-pid-known")) {
1979 if ((b
= parse_boolean(value
)) < 0)
1980 log_debug("Failed to parse main-pid-known value %s", value
);
1982 s
->main_pid_known
= b
;
1983 } else if (streq(key
, "control-command")) {
1984 ServiceExecCommand id
;
1986 if ((id
= service_exec_command_from_string(value
)) < 0)
1987 log_debug("Failed to parse exec-command value %s", value
);
1989 s
->control_command_id
= id
;
1990 s
->control_command
= s
->exec_command
[id
];
1992 } else if (streq(key
, "socket-fd")) {
1995 if (safe_atoi(value
, &fd
) < 0 || fd
< 0 || !fdset_contains(fds
, fd
))
1996 log_debug("Failed to parse socket-fd value %s", value
);
1999 if (s
->socket_fd
>= 0)
2000 close_nointr_nofail(s
->socket_fd
);
2001 s
->socket_fd
= fdset_remove(fds
, fd
);
2004 log_debug("Unknown serialization key '%s'", key
);
2009 static UnitActiveState
service_active_state(Unit
*u
) {
2012 return state_translation_table
[SERVICE(u
)->state
];
2015 static const char *service_sub_state_to_string(Unit
*u
) {
2018 return service_state_to_string(SERVICE(u
)->state
);
2021 static bool service_check_gc(Unit
*u
) {
2022 Service
*s
= SERVICE(u
);
2026 return !!s
->sysv_path
;
2029 static bool service_check_snapshot(Unit
*u
) {
2030 Service
*s
= SERVICE(u
);
2034 return !s
->got_socket_fd
;
2037 static void service_sigchld_event(Unit
*u
, pid_t pid
, int code
, int status
) {
2038 Service
*s
= SERVICE(u
);
2044 success
= is_clean_exit(code
, status
);
2045 s
->failure
= s
->failure
|| !success
;
2047 if (s
->main_pid
== pid
) {
2049 exec_status_fill(&s
->main_exec_status
, pid
, code
, status
);
2052 if (s
->type
!= SERVICE_FORKING
) {
2053 assert(s
->exec_command
[SERVICE_EXEC_START
]);
2054 s
->exec_command
[SERVICE_EXEC_START
]->exec_status
= s
->main_exec_status
;
2057 log_debug("%s: main process exited, code=%s, status=%i", u
->meta
.id
, sigchld_code_to_string(code
), status
);
2059 /* The service exited, so the service is officially
2064 case SERVICE_START_POST
:
2065 case SERVICE_RELOAD
:
2067 /* Need to wait until the operation is
2072 if (s
->type
== SERVICE_FINISH
) {
2073 /* This was our main goal, so let's go on */
2075 service_enter_start_post(s
);
2077 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2080 assert(s
->type
== SERVICE_DBUS
|| s
->type
== SERVICE_NOTIFY
);
2085 case SERVICE_RUNNING
:
2086 service_enter_running(s
, success
);
2089 case SERVICE_STOP_SIGTERM
:
2090 case SERVICE_STOP_SIGKILL
:
2092 if (!control_pid_good(s
))
2093 service_enter_stop_post(s
, success
);
2095 /* If there is still a control process, wait for that first */
2099 assert_not_reached("Uh, main process died at wrong time.");
2102 } else if (s
->control_pid
== pid
) {
2104 if (s
->control_command
)
2105 exec_status_fill(&s
->control_command
->exec_status
, pid
, code
, status
);
2109 log_debug("%s: control process exited, code=%s status=%i", u
->meta
.id
, sigchld_code_to_string(code
), status
);
2111 /* If we are shutting things down anyway we
2112 * don't care about failing commands. */
2114 if (s
->control_command
&& s
->control_command
->command_next
&& success
) {
2116 /* There is another command to *
2117 * execute, so let's do that. */
2119 log_debug("%s running next command for state %s", u
->meta
.id
, service_state_to_string(s
->state
));
2120 service_run_next(s
, success
);
2123 /* No further commands for this step, so let's
2124 * figure out what to do next */
2126 s
->control_command
= NULL
;
2127 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
2129 log_debug("%s got final SIGCHLD for state %s", u
->meta
.id
, service_state_to_string(s
->state
));
2133 case SERVICE_START_PRE
:
2135 service_enter_start(s
);
2137 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2141 assert(s
->type
== SERVICE_FORKING
);
2143 /* Let's try to load the pid
2144 * file here if we can. We
2145 * ignore the return value,
2146 * since the PID file might
2147 * actually be created by a
2148 * START_POST script */
2152 service_load_pid_file(s
);
2154 service_enter_start_post(s
);
2156 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2160 case SERVICE_START_POST
:
2161 if (success
&& s
->pid_file
&& !s
->main_pid_known
) {
2164 /* Hmm, let's see if we can
2165 * load the pid now after the
2166 * start-post scripts got
2169 if ((r
= service_load_pid_file(s
)) < 0)
2170 log_warning("%s: failed to load PID file %s: %s", UNIT(s
)->meta
.id
, s
->pid_file
, strerror(-r
));
2175 case SERVICE_RELOAD
:
2177 service_enter_running(s
, true);
2179 service_enter_stop(s
, false);
2184 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, success
);
2187 case SERVICE_STOP_SIGTERM
:
2188 case SERVICE_STOP_SIGKILL
:
2189 if (main_pid_good(s
) <= 0)
2190 service_enter_stop_post(s
, success
);
2192 /* If there is still a service
2193 * process around, wait until
2194 * that one quit, too */
2197 case SERVICE_STOP_POST
:
2198 case SERVICE_FINAL_SIGTERM
:
2199 case SERVICE_FINAL_SIGKILL
:
2200 service_enter_dead(s
, success
, true);
2204 assert_not_reached("Uh, control process died at wrong time.");
2210 static void service_timer_event(Unit
*u
, uint64_t elapsed
, Watch
* w
) {
2211 Service
*s
= SERVICE(u
);
2214 assert(elapsed
== 1);
2216 assert(w
== &s
->timer_watch
);
2220 case SERVICE_START_PRE
:
2222 log_warning("%s operation timed out. Terminating.", u
->meta
.id
);
2223 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2226 case SERVICE_START_POST
:
2227 case SERVICE_RELOAD
:
2228 log_warning("%s operation timed out. Stopping.", u
->meta
.id
);
2229 service_enter_stop(s
, false);
2233 log_warning("%s stopping timed out. Terminating.", u
->meta
.id
);
2234 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
2237 case SERVICE_STOP_SIGTERM
:
2238 log_warning("%s stopping timed out. Killing.", u
->meta
.id
);
2239 service_enter_signal(s
, SERVICE_STOP_SIGKILL
, false);
2242 case SERVICE_STOP_SIGKILL
:
2243 /* Uh, wie sent a SIGKILL and it is still not gone?
2244 * Must be something we cannot kill, so let's just be
2245 * weirded out and continue */
2247 log_warning("%s still around after SIGKILL. Ignoring.", u
->meta
.id
);
2248 service_enter_stop_post(s
, false);
2251 case SERVICE_STOP_POST
:
2252 log_warning("%s stopping timed out (2). Terminating.", u
->meta
.id
);
2253 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2256 case SERVICE_FINAL_SIGTERM
:
2257 log_warning("%s stopping timed out (2). Killing.", u
->meta
.id
);
2258 service_enter_signal(s
, SERVICE_FINAL_SIGKILL
, false);
2261 case SERVICE_FINAL_SIGKILL
:
2262 log_warning("%s still around after SIGKILL (2). Entering maintenance mode.", u
->meta
.id
);
2263 service_enter_dead(s
, false, true);
2266 case SERVICE_AUTO_RESTART
:
2267 log_debug("%s holdoff time over, scheduling restart.", u
->meta
.id
);
2268 service_enter_restart(s
);
2272 assert_not_reached("Timeout at wrong time.");
2276 static void service_cgroup_notify_event(Unit
*u
) {
2277 Service
*s
= SERVICE(u
);
2281 log_debug("%s: cgroup is empty", u
->meta
.id
);
2285 /* Waiting for SIGCHLD is usually more interesting,
2286 * because it includes return codes/signals. Which is
2287 * why we ignore the cgroup events for most cases,
2288 * except when we don't know pid which to expect the
2291 case SERVICE_RUNNING
:
2292 service_enter_running(s
, true);
2300 static void service_notify_message(Unit
*u
, pid_t pid
, char **tags
) {
2301 Service
*s
= SERVICE(u
);
2306 if (s
->notify_access
== NOTIFY_NONE
) {
2307 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2308 u
->meta
.id
, (unsigned long) pid
);
2312 if (s
->notify_access
== NOTIFY_MAIN
&& pid
!= s
->main_pid
) {
2313 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2314 u
->meta
.id
, (unsigned long) pid
, (unsigned long) s
->main_pid
);
2318 log_debug("%s: Got message", u
->meta
.id
);
2320 /* Interpret MAINPID= */
2321 if ((e
= strv_find_prefix(tags
, "MAINPID=")) &&
2322 (s
->state
== SERVICE_START
||
2323 s
->state
== SERVICE_START_POST
||
2324 s
->state
== SERVICE_RUNNING
||
2325 s
->state
== SERVICE_RELOAD
)) {
2327 if (parse_pid(e
+ 8, &pid
) < 0)
2328 log_warning("Failed to parse %s", e
);
2330 log_debug("%s: got %s", u
->meta
.id
, e
);
2331 service_set_main_pid(s
, pid
);
2335 /* Interpret READY= */
2336 if (s
->type
== SERVICE_NOTIFY
&&
2337 s
->state
== SERVICE_START
&&
2338 strv_find(tags
, "READY=1")) {
2339 log_debug("%s: got READY=1", u
->meta
.id
);
2341 service_enter_start_post(s
);
2344 /* Interpret STATUS= */
2345 if ((e
= strv_find_prefix(tags
, "STATUS="))) {
2348 if (!(t
= strdup(e
+7))) {
2349 log_error("Failed to allocate string.");
2353 log_debug("%s: got %s", u
->meta
.id
, e
);
2355 free(s
->status_text
);
2360 static int service_enumerate(Manager
*m
) {
2364 char *path
= NULL
, *fpath
= NULL
, *name
= NULL
;
2369 STRV_FOREACH(p
, m
->lookup_paths
.sysvrcnd_path
)
2370 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++) {
2375 if (asprintf(&path
, "%s/%s", *p
, rcnd_table
[i
].path
) < 0) {
2383 if (!(d
= opendir(path
))) {
2384 if (errno
!= ENOENT
)
2385 log_warning("opendir() failed on %s: %s", path
, strerror(errno
));
2390 while ((de
= readdir(d
))) {
2394 if (ignore_file(de
->d_name
))
2397 if (de
->d_name
[0] != 'S' && de
->d_name
[0] != 'K')
2400 if (strlen(de
->d_name
) < 4)
2403 a
= undecchar(de
->d_name
[1]);
2404 b
= undecchar(de
->d_name
[2]);
2411 if (asprintf(&fpath
, "%s/%s/%s", *p
, rcnd_table
[i
].path
, de
->d_name
) < 0) {
2416 if (access(fpath
, X_OK
) < 0) {
2418 if (errno
!= ENOENT
)
2419 log_warning("access() failed on %s: %s", fpath
, strerror(errno
));
2425 if (!(name
= sysv_translate_name(de
->d_name
+ 3))) {
2430 if ((r
= manager_load_unit_prepare(m
, name
, NULL
, &service
)) < 0) {
2431 log_warning("Failed to prepare unit %s: %s", name
, strerror(-r
));
2435 if (de
->d_name
[0] == 'S' &&
2436 (rcnd_table
[i
].type
== RUNLEVEL_UP
|| rcnd_table
[i
].type
== RUNLEVEL_SYSINIT
))
2437 SERVICE(service
)->sysv_start_priority
=
2438 MAX(a
*10 + b
, SERVICE(service
)->sysv_start_priority
);
2440 manager_dispatch_load_queue(m
);
2441 service
= unit_follow_merge(service
);
2443 if (de
->d_name
[0] == 'S') {
2444 Unit
*runlevel_target
;
2446 if ((r
= manager_load_unit(m
, rcnd_table
[i
].target
, NULL
, &runlevel_target
)) < 0)
2449 if ((r
= unit_add_dependency(runlevel_target
, UNIT_WANTS
, service
, true)) < 0)
2452 if ((r
= unit_add_dependency(service
, UNIT_BEFORE
, runlevel_target
, true)) < 0)
2455 } else if (de
->d_name
[0] == 'K' &&
2456 (rcnd_table
[i
].type
== RUNLEVEL_DOWN
||
2457 rcnd_table
[i
].type
== RUNLEVEL_SYSINIT
)) {
2458 Unit
*shutdown_target
;
2460 /* We honour K links only for
2461 * halt/reboot. For the normal
2462 * runlevels we assume the
2464 * implicitly added by the
2465 * core logic. Also, we don't
2466 * really distuingish here
2467 * between the runlevels 0 and
2468 * 6 and just add them to the
2469 * special shutdown target. On
2470 * SUSE the boot.d/ runlevel
2471 * is also used for shutdown,
2472 * so we add links for that
2473 * too to the shutdown
2476 if ((r
= manager_load_unit(m
, SPECIAL_SHUTDOWN_TARGET
, NULL
, &shutdown_target
)) < 0)
2479 if ((r
= unit_add_dependency(service
, UNIT_CONFLICTS
, shutdown_target
, true)) < 0)
2482 if ((r
= unit_add_dependency(service
, UNIT_BEFORE
, shutdown_target
, true)) < 0)
2501 static void service_bus_name_owner_change(
2504 const char *old_owner
,
2505 const char *new_owner
) {
2507 Service
*s
= SERVICE(u
);
2512 assert(streq(s
->bus_name
, name
));
2513 assert(old_owner
|| new_owner
);
2515 if (old_owner
&& new_owner
)
2516 log_debug("%s's D-Bus name %s changed owner from %s to %s", u
->meta
.id
, name
, old_owner
, new_owner
);
2518 log_debug("%s's D-Bus name %s no longer registered by %s", u
->meta
.id
, name
, old_owner
);
2520 log_debug("%s's D-Bus name %s now registered by %s", u
->meta
.id
, name
, new_owner
);
2522 s
->bus_name_good
= !!new_owner
;
2524 if (s
->type
== SERVICE_DBUS
) {
2526 /* service_enter_running() will figure out what to
2528 if (s
->state
== SERVICE_RUNNING
)
2529 service_enter_running(s
, true);
2530 else if (s
->state
== SERVICE_START
&& new_owner
)
2531 service_enter_start_post(s
);
2533 } else if (new_owner
&&
2535 (s
->state
== SERVICE_START
||
2536 s
->state
== SERVICE_START_POST
||
2537 s
->state
== SERVICE_RUNNING
||
2538 s
->state
== SERVICE_RELOAD
)) {
2540 /* Try to acquire PID from bus service */
2541 log_debug("Trying to acquire PID from D-Bus name...");
2543 bus_query_pid(u
->meta
.manager
, name
);
2547 static void service_bus_query_pid_done(
2552 Service
*s
= SERVICE(u
);
2557 log_debug("%s's D-Bus name %s is now owned by process %u", u
->meta
.id
, name
, (unsigned) pid
);
2559 if (s
->main_pid
<= 0 &&
2560 (s
->state
== SERVICE_START
||
2561 s
->state
== SERVICE_START_POST
||
2562 s
->state
== SERVICE_RUNNING
||
2563 s
->state
== SERVICE_RELOAD
))
2564 service_set_main_pid(s
, pid
);
2567 int service_set_socket_fd(Service
*s
, int fd
, Socket
*sock
) {
2571 /* This is called by the socket code when instantiating a new
2572 * service for a stream socket and the socket needs to be
2575 if (UNIT(s
)->meta
.load_state
!= UNIT_LOADED
)
2578 if (s
->socket_fd
>= 0)
2581 if (s
->state
!= SERVICE_DEAD
)
2585 s
->got_socket_fd
= true;
2591 static const char* const service_state_table
[_SERVICE_STATE_MAX
] = {
2592 [SERVICE_DEAD
] = "dead",
2593 [SERVICE_START_PRE
] = "start-pre",
2594 [SERVICE_START
] = "start",
2595 [SERVICE_START_POST
] = "start-post",
2596 [SERVICE_RUNNING
] = "running",
2597 [SERVICE_EXITED
] = "exited",
2598 [SERVICE_RELOAD
] = "reload",
2599 [SERVICE_STOP
] = "stop",
2600 [SERVICE_STOP_SIGTERM
] = "stop-sigterm",
2601 [SERVICE_STOP_SIGKILL
] = "stop-sigkill",
2602 [SERVICE_STOP_POST
] = "stop-post",
2603 [SERVICE_FINAL_SIGTERM
] = "final-sigterm",
2604 [SERVICE_FINAL_SIGKILL
] = "final-sigkill",
2605 [SERVICE_MAINTENANCE
] = "maintenance",
2606 [SERVICE_AUTO_RESTART
] = "auto-restart",
2609 DEFINE_STRING_TABLE_LOOKUP(service_state
, ServiceState
);
2611 static const char* const service_restart_table
[_SERVICE_RESTART_MAX
] = {
2612 [SERVICE_ONCE
] = "once",
2613 [SERVICE_RESTART_ON_SUCCESS
] = "restart-on-success",
2614 [SERVICE_RESTART_ALWAYS
] = "restart-always",
2617 DEFINE_STRING_TABLE_LOOKUP(service_restart
, ServiceRestart
);
2619 static const char* const service_type_table
[_SERVICE_TYPE_MAX
] = {
2620 [SERVICE_FORKING
] = "forking",
2621 [SERVICE_SIMPLE
] = "simple",
2622 [SERVICE_FINISH
] = "finish",
2623 [SERVICE_DBUS
] = "dbus",
2624 [SERVICE_NOTIFY
] = "notify"
2627 DEFINE_STRING_TABLE_LOOKUP(service_type
, ServiceType
);
2629 static const char* const service_exec_command_table
[_SERVICE_EXEC_COMMAND_MAX
] = {
2630 [SERVICE_EXEC_START_PRE
] = "ExecStartPre",
2631 [SERVICE_EXEC_START
] = "ExecStart",
2632 [SERVICE_EXEC_START_POST
] = "ExecStartPost",
2633 [SERVICE_EXEC_RELOAD
] = "ExecReload",
2634 [SERVICE_EXEC_STOP
] = "ExecStop",
2635 [SERVICE_EXEC_STOP_POST
] = "ExecStopPost",
2638 DEFINE_STRING_TABLE_LOOKUP(service_exec_command
, ServiceExecCommand
);
2640 static const char* const notify_access_table
[_NOTIFY_ACCESS_MAX
] = {
2641 [NOTIFY_NONE
] = "none",
2642 [NOTIFY_MAIN
] = "main",
2643 [NOTIFY_ALL
] = "all"
2646 DEFINE_STRING_TABLE_LOOKUP(notify_access
, NotifyAccess
);
2648 const UnitVTable service_vtable
= {
2649 .suffix
= ".service",
2651 .init
= service_init
,
2652 .done
= service_done
,
2653 .load
= service_load
,
2655 .coldplug
= service_coldplug
,
2657 .dump
= service_dump
,
2659 .start
= service_start
,
2660 .stop
= service_stop
,
2661 .reload
= service_reload
,
2663 .can_reload
= service_can_reload
,
2665 .serialize
= service_serialize
,
2666 .deserialize_item
= service_deserialize_item
,
2668 .active_state
= service_active_state
,
2669 .sub_state_to_string
= service_sub_state_to_string
,
2671 .check_gc
= service_check_gc
,
2672 .check_snapshot
= service_check_snapshot
,
2674 .sigchld_event
= service_sigchld_event
,
2675 .timer_event
= service_timer_event
,
2677 .cgroup_notify_empty
= service_cgroup_notify_event
,
2678 .notify_message
= service_notify_message
,
2680 .bus_name_owner_change
= service_bus_name_owner_change
,
2681 .bus_query_pid_done
= service_bus_query_pid_done
,
2683 .bus_message_handler
= bus_service_message_handler
,
2685 .enumerate
= service_enumerate