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 watch_init(&s
->watchdog_watch
);
131 watch_init(&s
->timer_watch
);
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_unit(UNIT(s
)->id
, "Stopping watch for %s's PID file %s",
173 UNIT(s
)->id
, s
->pid_file_pathspec
->path
);
174 path_spec_unwatch(s
->pid_file_pathspec
, UNIT(s
));
175 path_spec_done(s
->pid_file_pathspec
);
176 free(s
->pid_file_pathspec
);
177 s
->pid_file_pathspec
= NULL
;
180 static int service_set_main_pid(Service
*s
, pid_t pid
) {
192 s
->main_pid_known
= true;
194 if (get_parent_of_pid(pid
, &ppid
) >= 0 && ppid
!= getpid()) {
195 log_warning_unit(UNIT(s
)->id
,
196 "%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
197 UNIT(s
)->id
, (unsigned long) pid
);
199 s
->main_pid_alien
= true;
201 s
->main_pid_alien
= false;
203 exec_status_start(&s
->main_exec_status
, pid
);
208 static void service_close_socket_fd(Service
*s
) {
211 if (s
->socket_fd
< 0)
214 close_nointr_nofail(s
->socket_fd
);
218 static void service_connection_unref(Service
*s
) {
221 if (!UNIT_DEREF(s
->accept_socket
))
224 socket_connection_unref(SOCKET(UNIT_DEREF(s
->accept_socket
)));
225 unit_ref_unset(&s
->accept_socket
);
228 static void service_stop_watchdog(Service
*s
) {
231 unit_unwatch_timer(UNIT(s
), &s
->watchdog_watch
);
232 s
->watchdog_timestamp
.realtime
= 0;
233 s
->watchdog_timestamp
.monotonic
= 0;
236 static void service_enter_dead(Service
*s
, ServiceResult f
, bool allow_restart
);
238 static void service_handle_watchdog(Service
*s
) {
244 if (s
->watchdog_usec
== 0)
247 offset
= now(CLOCK_MONOTONIC
) - s
->watchdog_timestamp
.monotonic
;
248 if (offset
>= s
->watchdog_usec
) {
249 log_error_unit(UNIT(s
)->id
, "%s watchdog timeout!", UNIT(s
)->id
);
250 service_enter_dead(s
, SERVICE_FAILURE_WATCHDOG
, true);
254 r
= unit_watch_timer(UNIT(s
), CLOCK_MONOTONIC
, true, s
->watchdog_usec
- offset
, &s
->watchdog_watch
);
256 log_warning_unit(UNIT(s
)->id
,
257 "%s failed to install watchdog timer: %s",
258 UNIT(s
)->id
, strerror(-r
));
261 static void service_reset_watchdog(Service
*s
) {
264 dual_timestamp_get(&s
->watchdog_timestamp
);
265 service_handle_watchdog(s
);
268 static void service_done(Unit
*u
) {
269 Service
*s
= SERVICE(u
);
276 #ifdef HAVE_SYSV_COMPAT
277 free(s
->sysv_runlevels
);
278 s
->sysv_runlevels
= NULL
;
281 free(s
->status_text
);
282 s
->status_text
= NULL
;
284 exec_context_done(&s
->exec_context
);
285 exec_command_free_array(s
->exec_command
, _SERVICE_EXEC_COMMAND_MAX
);
286 s
->control_command
= NULL
;
287 s
->main_command
= NULL
;
289 set_free(s
->restart_ignore_status
.code
);
290 s
->restart_ignore_status
.code
= NULL
;
291 set_free(s
->restart_ignore_status
.signal
);
292 s
->restart_ignore_status
.signal
= NULL
;
294 set_free(s
->success_status
.code
);
295 s
->success_status
.code
= NULL
;
296 set_free(s
->success_status
.signal
);
297 s
->success_status
.signal
= NULL
;
299 /* This will leak a process, but at least no memory or any of
301 service_unwatch_main_pid(s
);
302 service_unwatch_control_pid(s
);
303 service_unwatch_pid_file(s
);
306 unit_unwatch_bus_name(u
, s
->bus_name
);
311 service_close_socket_fd(s
);
312 service_connection_unref(s
);
314 unit_ref_unset(&s
->accept_socket
);
316 service_stop_watchdog(s
);
318 unit_unwatch_timer(u
, &s
->timer_watch
);
321 #ifdef HAVE_SYSV_COMPAT
322 static char *sysv_translate_name(const char *name
) {
325 r
= new(char, strlen(name
) + sizeof(".service"));
329 if (endswith(name
, ".sh"))
330 /* Drop .sh suffix */
331 strcpy(stpcpy(r
, name
) - 3, ".service");
332 if (startswith(name
, "rc."))
333 /* Drop rc. prefix */
334 strcpy(stpcpy(r
, name
+ 3), ".service");
336 /* Normal init script name */
337 strcpy(stpcpy(r
, name
), ".service");
342 static int sysv_translate_facility(const char *name
, const char *filename
, char **_r
) {
344 /* We silently ignore the $ prefix here. According to the LSB
345 * spec it simply indicates whether something is a
346 * standardized name or a distribution-specific one. Since we
347 * just follow what already exists and do not introduce new
348 * uses or names we don't care who introduced a new name. */
350 static const char * const table
[] = {
351 /* LSB defined facilities */
353 "network", SPECIAL_NETWORK_TARGET
,
354 "named", SPECIAL_NSS_LOOKUP_TARGET
,
355 "portmap", SPECIAL_RPCBIND_TARGET
,
356 "remote_fs", SPECIAL_REMOTE_FS_TARGET
,
358 "time", SPECIAL_TIME_SYNC_TARGET
,
368 n
= *name
== '$' ? name
+ 1 : name
;
370 for (i
= 0; i
< ELEMENTSOF(table
); i
+= 2) {
372 if (!streq(table
[i
], n
))
378 r
= strdup(table
[i
+1]);
385 /* If we don't know this name, fallback heuristics to figure
386 * out whether something is a target or a service alias. */
389 if (!unit_prefix_is_valid(n
))
392 /* Facilities starting with $ are most likely targets */
393 r
= unit_name_build(n
, NULL
, ".target");
394 } else if (filename
&& streq(name
, filename
))
395 /* Names equaling the file name of the services are redundant */
398 /* Everything else we assume to be normal service names */
399 r
= sysv_translate_name(n
);
410 static int sysv_fix_order(Service
*s
) {
416 if (s
->sysv_start_priority
< 0)
419 /* For each pair of services where at least one lacks a LSB
420 * header, we use the start priority value to order things. */
422 LIST_FOREACH(units_by_type
, other
, UNIT(s
)->manager
->units_by_type
[UNIT_SERVICE
]) {
425 bool special_s
, special_t
;
432 if (UNIT(t
)->load_state
!= UNIT_LOADED
)
435 if (t
->sysv_start_priority
< 0)
438 /* If both units have modern headers we don't care
439 * about the priorities */
440 if ((UNIT(s
)->fragment_path
|| s
->sysv_has_lsb
) &&
441 (UNIT(t
)->fragment_path
|| t
->sysv_has_lsb
))
444 special_s
= s
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, s
->sysv_runlevels
);
445 special_t
= t
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, t
->sysv_runlevels
);
447 if (special_t
&& !special_s
)
449 else if (special_s
&& !special_t
)
451 else if (t
->sysv_start_priority
< s
->sysv_start_priority
)
453 else if (t
->sysv_start_priority
> s
->sysv_start_priority
)
458 /* FIXME: Maybe we should compare the name here lexicographically? */
460 if ((r
= unit_add_dependency(UNIT(s
), d
, UNIT(t
), true)) < 0)
467 static ExecCommand
*exec_command_new(const char *path
, const char *arg1
) {
470 if (!(c
= new0(ExecCommand
, 1)))
473 if (!(c
->path
= strdup(path
))) {
478 if (!(c
->argv
= strv_new(path
, arg1
, NULL
))) {
487 static int sysv_exec_commands(Service
*s
, const bool supports_reload
) {
492 assert(UNIT(s
)->source_path
);
494 c
= exec_command_new(UNIT(s
)->source_path
, "start");
497 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_START
, c
);
499 c
= exec_command_new(UNIT(s
)->source_path
, "stop");
502 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_STOP
, c
);
504 if (supports_reload
) {
505 c
= exec_command_new(UNIT(s
)->source_path
, "reload");
508 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_RELOAD
, c
);
514 static bool usage_contains_reload(const char *line
) {
515 return (strcasestr(line
, "{reload|") ||
516 strcasestr(line
, "{reload}") ||
517 strcasestr(line
, "{reload\"") ||
518 strcasestr(line
, "|reload|") ||
519 strcasestr(line
, "|reload}") ||
520 strcasestr(line
, "|reload\""));
523 static int service_load_sysv_path(Service
*s
, const char *path
) {
535 char *short_description
= NULL
, *long_description
= NULL
, *chkconfig_description
= NULL
, *description
;
537 bool supports_reload
= false;
544 f
= fopen(path
, "re");
546 r
= errno
== ENOENT
? 0 : -errno
;
550 if (fstat(fileno(f
), &st
) < 0) {
555 free(u
->source_path
);
556 u
->source_path
= strdup(path
);
557 if (!u
->source_path
) {
561 u
->source_mtime
= timespec_load(&st
.st_mtim
);
563 if (null_or_empty(&st
)) {
564 u
->load_state
= UNIT_MASKED
;
572 char l
[LINE_MAX
], *t
;
574 if (!fgets(l
, sizeof(l
), f
)) {
579 log_error_unit(u
->id
,
580 "Failed to read configuration file '%s': %s",
589 /* Try to figure out whether this init script supports
590 * the reload operation. This heuristic looks for
591 * "Usage" lines which include the reload option. */
592 if ( state
== USAGE_CONTINUATION
||
593 (state
== NORMAL
&& strcasestr(t
, "usage"))) {
594 if (usage_contains_reload(t
)) {
595 supports_reload
= true;
597 } else if (t
[strlen(t
)-1] == '\\')
598 state
= USAGE_CONTINUATION
;
606 if (state
== NORMAL
&& streq(t
, "### BEGIN INIT INFO")) {
608 s
->sysv_has_lsb
= true;
612 if ((state
== LSB_DESCRIPTION
|| state
== LSB
) && streq(t
, "### END INIT INFO")) {
618 t
+= strspn(t
, WHITESPACE
);
620 if (state
== NORMAL
) {
622 /* Try to parse Red Hat style chkconfig headers */
624 if (startswith_no_case(t
, "chkconfig:")) {
626 char runlevels
[16], *k
;
630 if (sscanf(t
+10, "%15s %i %*i",
632 &start_priority
) != 2) {
634 log_warning_unit(u
->id
,
635 "[%s:%u] Failed to parse chkconfig line. Ignoring.",
640 /* A start priority gathered from the
641 * symlink farms is preferred over the
642 * data from the LSB header. */
643 if (start_priority
< 0 || start_priority
> 99)
644 log_warning_unit(u
->id
,
645 "[%s:%u] Start priority out of range. Ignoring.",
648 s
->sysv_start_priority
= start_priority
;
650 char_array_0(runlevels
);
651 k
= delete_chars(runlevels
, WHITESPACE
"-");
656 if (!(d
= strdup(k
))) {
661 free(s
->sysv_runlevels
);
662 s
->sysv_runlevels
= d
;
665 } else if (startswith_no_case(t
, "description:")) {
667 size_t k
= strlen(t
);
671 if (t
[k
-1] == '\\') {
676 if ((j
= strstrip(t
+12)) && *j
) {
677 if (!(d
= strdup(j
))) {
684 free(chkconfig_description
);
685 chkconfig_description
= d
;
687 } else if (startswith_no_case(t
, "pidfile:")) {
694 if (!path_is_absolute(fn
)) {
695 log_warning_unit(u
->id
,
696 "[%s:%u] PID file not absolute. Ignoring.",
701 if (!(fn
= strdup(fn
))) {
710 } else if (state
== DESCRIPTION
) {
712 /* Try to parse Red Hat style description
715 size_t k
= strlen(t
);
723 if ((j
= strstrip(t
)) && *j
) {
726 if (chkconfig_description
)
727 d
= strjoin(chkconfig_description
, " ", j
, NULL
);
736 free(chkconfig_description
);
737 chkconfig_description
= d
;
740 } else if (state
== LSB
|| state
== LSB_DESCRIPTION
) {
742 if (startswith_no_case(t
, "Provides:")) {
748 FOREACH_WORD_QUOTED(w
, z
, t
+9, i
) {
751 if (!(n
= strndup(w
, z
))) {
756 r
= sysv_translate_facility(n
, path_get_file_name(path
), &m
);
765 if (unit_name_to_type(m
) == UNIT_SERVICE
)
766 r
= unit_add_name(u
, m
);
773 * indication that the
775 * now available. This
778 * targets do NOT pull
781 r
= unit_add_two_dependencies_by_name(u
, UNIT_BEFORE
, UNIT_WANTS
, m
, NULL
, true);
784 log_error_unit(u
->id
,
785 "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s",
786 path
, line
, m
, strerror(-r
));
791 } else if (startswith_no_case(t
, "Required-Start:") ||
792 startswith_no_case(t
, "Should-Start:") ||
793 startswith_no_case(t
, "X-Start-Before:") ||
794 startswith_no_case(t
, "X-Start-After:")) {
800 FOREACH_WORD_QUOTED(w
, z
, strchr(t
, ':')+1, i
) {
803 if (!(n
= strndup(w
, z
))) {
808 r
= sysv_translate_facility(n
, path_get_file_name(path
), &m
);
810 log_error_unit(u
->id
,
811 "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s",
812 path
, line
, n
, strerror(-r
));
822 r
= unit_add_dependency_by_name(u
, startswith_no_case(t
, "X-Start-Before:") ? UNIT_BEFORE
: UNIT_AFTER
, m
, NULL
, true);
825 log_error_unit(u
->id
, "[%s:%u] Failed to add dependency on %s, ignoring: %s",
826 path
, line
, m
, strerror(-r
));
830 } else if (startswith_no_case(t
, "Default-Start:")) {
835 k
= delete_chars(t
+14, WHITESPACE
"-");
838 if (!(d
= strdup(k
))) {
843 free(s
->sysv_runlevels
);
844 s
->sysv_runlevels
= d
;
847 } else if (startswith_no_case(t
, "Description:")) {
850 state
= LSB_DESCRIPTION
;
852 if ((j
= strstrip(t
+12)) && *j
) {
853 if (!(d
= strdup(j
))) {
860 free(long_description
);
861 long_description
= d
;
863 } else if (startswith_no_case(t
, "Short-Description:")) {
868 if ((j
= strstrip(t
+18)) && *j
) {
869 if (!(d
= strdup(j
))) {
876 free(short_description
);
877 short_description
= d
;
879 } else if (state
== LSB_DESCRIPTION
) {
881 if (startswith(l
, "#\t") || startswith(l
, "# ")) {
884 if ((j
= strstrip(t
)) && *j
) {
887 if (long_description
)
888 d
= strjoin(long_description
, " ", t
, NULL
);
897 free(long_description
);
898 long_description
= d
;
907 if ((r
= sysv_exec_commands(s
, supports_reload
)) < 0)
910 if (s
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, s
->sysv_runlevels
)) {
911 /* If there a runlevels configured for this service
912 * but none of the standard ones, then we assume this
913 * is some special kind of service (which might be
914 * needed for early boot) and don't create any links
917 UNIT(s
)->default_dependencies
= false;
919 /* Don't timeout special services during boot (like fsck) */
920 s
->timeout_start_usec
= 0;
921 s
->timeout_stop_usec
= 0;
923 s
->timeout_start_usec
= DEFAULT_SYSV_TIMEOUT_USEC
;
924 s
->timeout_stop_usec
= DEFAULT_SYSV_TIMEOUT_USEC
;
927 /* Special setting for all SysV services */
928 s
->type
= SERVICE_FORKING
;
929 s
->remain_after_exit
= !s
->pid_file
;
930 s
->guess_main_pid
= false;
931 s
->restart
= SERVICE_RESTART_NO
;
932 s
->exec_context
.ignore_sigpipe
= false;
933 s
->kill_context
.kill_mode
= KILL_PROCESS
;
935 /* We use the long description only if
936 * no short description is set. */
938 if (short_description
)
939 description
= short_description
;
940 else if (chkconfig_description
)
941 description
= chkconfig_description
;
942 else if (long_description
)
943 description
= long_description
;
950 if (!(d
= strappend(s
->sysv_has_lsb
? "LSB: " : "SYSV: ", description
))) {
958 /* The priority that has been set in /etc/rcN.d/ hierarchies
959 * takes precedence over what is stored as default in the LSB
961 if (s
->sysv_start_priority_from_rcnd
>= 0)
962 s
->sysv_start_priority
= s
->sysv_start_priority_from_rcnd
;
964 u
->load_state
= UNIT_LOADED
;
972 free(short_description
);
973 free(long_description
);
974 free(chkconfig_description
);
979 static int service_load_sysv_name(Service
*s
, const char *name
) {
985 /* For SysV services we strip the rc.* and *.sh
986 * prefixes/suffixes. */
987 if (startswith(name
, "rc.") ||
988 endswith(name
, ".sh.service"))
991 STRV_FOREACH(p
, UNIT(s
)->manager
->lookup_paths
.sysvinit_path
) {
995 path
= strjoin(*p
, "/", name
, NULL
);
999 assert(endswith(path
, ".service"));
1000 path
[strlen(path
)-8] = 0;
1002 r
= service_load_sysv_path(s
, path
);
1004 if (r
>= 0 && UNIT(s
)->load_state
== UNIT_STUB
) {
1005 /* Try *.sh source'able init scripts */
1006 strcat(path
, ".sh");
1007 r
= service_load_sysv_path(s
, path
);
1011 if (r
>= 0 && UNIT(s
)->load_state
== UNIT_STUB
) {
1012 /* Try rc.* init scripts */
1014 path
= strjoin(*p
, "/rc.", name
, NULL
);
1018 /* Drop .service suffix */
1019 path
[strlen(path
)-8] = 0;
1020 r
= service_load_sysv_path(s
, path
);
1027 if (UNIT(s
)->load_state
!= UNIT_STUB
)
1034 static int service_load_sysv(Service
*s
) {
1041 /* Load service data from SysV init scripts, preferably with
1042 * LSB headers ... */
1044 if (strv_isempty(UNIT(s
)->manager
->lookup_paths
.sysvinit_path
))
1047 if ((t
= UNIT(s
)->id
))
1048 if ((r
= service_load_sysv_name(s
, t
)) < 0)
1051 if (UNIT(s
)->load_state
== UNIT_STUB
)
1052 SET_FOREACH(t
, UNIT(s
)->names
, i
) {
1053 if (t
== UNIT(s
)->id
)
1056 if ((r
= service_load_sysv_name(s
, t
)) < 0)
1059 if (UNIT(s
)->load_state
!= UNIT_STUB
)
1067 static int fsck_fix_order(Service
*s
) {
1073 if (s
->fsck_passno
<= 0)
1076 /* For each pair of services where both have an fsck priority
1077 * we order things based on it. */
1079 LIST_FOREACH(units_by_type
, other
, UNIT(s
)->manager
->units_by_type
[UNIT_SERVICE
]) {
1088 if (UNIT(t
)->load_state
!= UNIT_LOADED
)
1091 if (t
->fsck_passno
<= 0)
1094 if (t
->fsck_passno
< s
->fsck_passno
)
1096 else if (t
->fsck_passno
> s
->fsck_passno
)
1101 if ((r
= unit_add_dependency(UNIT(s
), d
, UNIT(t
), true)) < 0)
1108 static int service_verify(Service
*s
) {
1111 if (UNIT(s
)->load_state
!= UNIT_LOADED
)
1114 if (!s
->exec_command
[SERVICE_EXEC_START
]) {
1115 log_error_unit(UNIT(s
)->id
,
1116 "%s lacks ExecStart setting. Refusing.", UNIT(s
)->id
);
1120 if (s
->type
!= SERVICE_ONESHOT
&&
1121 s
->exec_command
[SERVICE_EXEC_START
]->command_next
) {
1122 log_error_unit(UNIT(s
)->id
,
1123 "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s
)->id
);
1127 if (s
->type
== SERVICE_DBUS
&& !s
->bus_name
) {
1128 log_error_unit(UNIT(s
)->id
,
1129 "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s
)->id
);
1133 if (s
->bus_name
&& s
->type
!= SERVICE_DBUS
)
1134 log_warning_unit(UNIT(s
)->id
,
1135 "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s
)->id
);
1137 if (s
->exec_context
.pam_name
&& s
->kill_context
.kill_mode
!= KILL_CONTROL_GROUP
) {
1138 log_error_unit(UNIT(s
)->id
,
1139 "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s
)->id
);
1146 static int service_add_default_dependencies(Service
*s
) {
1151 /* Add a number of automatic dependencies useful for the
1152 * majority of services. */
1154 /* First, pull in base system */
1155 if (UNIT(s
)->manager
->running_as
== SYSTEMD_SYSTEM
) {
1157 if ((r
= unit_add_two_dependencies_by_name(UNIT(s
), UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_BASIC_TARGET
, NULL
, true)) < 0)
1160 } else if (UNIT(s
)->manager
->running_as
== SYSTEMD_USER
) {
1162 if ((r
= unit_add_two_dependencies_by_name(UNIT(s
), UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_SOCKETS_TARGET
, NULL
, true)) < 0)
1166 /* Second, activate normal shutdown */
1167 return unit_add_two_dependencies_by_name(UNIT(s
), UNIT_BEFORE
, UNIT_CONFLICTS
, SPECIAL_SHUTDOWN_TARGET
, NULL
, true);
1170 static void service_fix_output(Service
*s
) {
1173 /* If nothing has been explicitly configured, patch default
1174 * output in. If input is socket/tty we avoid this however,
1175 * since in that case we want output to default to the same
1176 * place as we read input from. */
1178 if (s
->exec_context
.std_error
== EXEC_OUTPUT_INHERIT
&&
1179 s
->exec_context
.std_output
== EXEC_OUTPUT_INHERIT
&&
1180 s
->exec_context
.std_input
== EXEC_INPUT_NULL
)
1181 s
->exec_context
.std_error
= UNIT(s
)->manager
->default_std_error
;
1183 if (s
->exec_context
.std_output
== EXEC_OUTPUT_INHERIT
&&
1184 s
->exec_context
.std_input
== EXEC_INPUT_NULL
)
1185 s
->exec_context
.std_output
= UNIT(s
)->manager
->default_std_output
;
1188 static int service_load(Unit
*u
) {
1190 Service
*s
= SERVICE(u
);
1194 /* Load a .service file */
1195 if ((r
= unit_load_fragment(u
)) < 0)
1198 #ifdef HAVE_SYSV_COMPAT
1199 /* Load a classic init script as a fallback, if we couldn't find anything */
1200 if (u
->load_state
== UNIT_STUB
)
1201 if ((r
= service_load_sysv(s
)) < 0)
1205 /* Still nothing found? Then let's give up */
1206 if (u
->load_state
== UNIT_STUB
)
1209 /* We were able to load something, then let's add in the
1210 * dropin directories. */
1211 if ((r
= unit_load_dropin(unit_follow_merge(u
))) < 0)
1214 /* This is a new unit? Then let's add in some extras */
1215 if (u
->load_state
== UNIT_LOADED
) {
1216 if (s
->type
== _SERVICE_TYPE_INVALID
)
1217 s
->type
= s
->bus_name
? SERVICE_DBUS
: SERVICE_SIMPLE
;
1219 /* Oneshot services have disabled start timeout by default */
1220 if (s
->type
== SERVICE_ONESHOT
&& !s
->start_timeout_defined
)
1221 s
->timeout_start_usec
= 0;
1223 service_fix_output(s
);
1225 if ((r
= unit_add_exec_dependencies(u
, &s
->exec_context
)) < 0)
1228 if ((r
= unit_add_default_cgroups(u
)) < 0)
1231 #ifdef HAVE_SYSV_COMPAT
1232 if ((r
= sysv_fix_order(s
)) < 0)
1236 if ((r
= fsck_fix_order(s
)) < 0)
1240 if ((r
= unit_watch_bus_name(u
, s
->bus_name
)) < 0)
1243 if (s
->type
== SERVICE_NOTIFY
&& s
->notify_access
== NOTIFY_NONE
)
1244 s
->notify_access
= NOTIFY_MAIN
;
1246 if (s
->watchdog_usec
> 0 && s
->notify_access
== NOTIFY_NONE
)
1247 s
->notify_access
= NOTIFY_MAIN
;
1249 if (s
->type
== SERVICE_DBUS
|| s
->bus_name
)
1250 if ((r
= unit_add_two_dependencies_by_name(u
, UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_DBUS_SOCKET
, NULL
, true)) < 0)
1253 if (UNIT(s
)->default_dependencies
)
1254 if ((r
= service_add_default_dependencies(s
)) < 0)
1257 r
= unit_exec_context_defaults(u
, &s
->exec_context
);
1262 return service_verify(s
);
1265 static void service_dump(Unit
*u
, FILE *f
, const char *prefix
) {
1267 ServiceExecCommand c
;
1268 Service
*s
= SERVICE(u
);
1269 const char *prefix2
;
1274 p2
= strappend(prefix
, "\t");
1275 prefix2
= p2
? p2
: prefix
;
1278 "%sService State: %s\n"
1280 "%sReload Result: %s\n"
1281 "%sPermissionsStartOnly: %s\n"
1282 "%sRootDirectoryStartOnly: %s\n"
1283 "%sRemainAfterExit: %s\n"
1284 "%sGuessMainPID: %s\n"
1287 "%sNotifyAccess: %s\n",
1288 prefix
, service_state_to_string(s
->state
),
1289 prefix
, service_result_to_string(s
->result
),
1290 prefix
, service_result_to_string(s
->reload_result
),
1291 prefix
, yes_no(s
->permissions_start_only
),
1292 prefix
, yes_no(s
->root_directory_start_only
),
1293 prefix
, yes_no(s
->remain_after_exit
),
1294 prefix
, yes_no(s
->guess_main_pid
),
1295 prefix
, service_type_to_string(s
->type
),
1296 prefix
, service_restart_to_string(s
->restart
),
1297 prefix
, notify_access_to_string(s
->notify_access
));
1299 if (s
->control_pid
> 0)
1301 "%sControl PID: %lu\n",
1302 prefix
, (unsigned long) s
->control_pid
);
1304 if (s
->main_pid
> 0)
1307 "%sMain PID Known: %s\n"
1308 "%sMain PID Alien: %s\n",
1309 prefix
, (unsigned long) s
->main_pid
,
1310 prefix
, yes_no(s
->main_pid_known
),
1311 prefix
, yes_no(s
->main_pid_alien
));
1316 prefix
, s
->pid_file
);
1321 "%sBus Name Good: %s\n",
1322 prefix
, s
->bus_name
,
1323 prefix
, yes_no(s
->bus_name_good
));
1325 kill_context_dump(&s
->kill_context
, f
, prefix
);
1326 exec_context_dump(&s
->exec_context
, f
, prefix
);
1328 for (c
= 0; c
< _SERVICE_EXEC_COMMAND_MAX
; c
++) {
1330 if (!s
->exec_command
[c
])
1333 fprintf(f
, "%s-> %s:\n",
1334 prefix
, service_exec_command_to_string(c
));
1336 exec_command_dump_list(s
->exec_command
[c
], f
, prefix2
);
1339 #ifdef HAVE_SYSV_COMPAT
1342 "%sSysV Init Script has LSB Header: %s\n"
1343 "%sSysVEnabled: %s\n",
1344 prefix
, yes_no(s
->sysv_has_lsb
),
1345 prefix
, yes_no(s
->sysv_enabled
));
1347 if (s
->sysv_start_priority
>= 0)
1349 "%sSysVStartPriority: %i\n",
1350 prefix
, s
->sysv_start_priority
);
1352 if (s
->sysv_runlevels
)
1353 fprintf(f
, "%sSysVRunLevels: %s\n",
1354 prefix
, s
->sysv_runlevels
);
1357 if (s
->fsck_passno
> 0)
1359 "%sFsckPassNo: %i\n",
1360 prefix
, s
->fsck_passno
);
1363 fprintf(f
, "%sStatus Text: %s\n",
1364 prefix
, s
->status_text
);
1369 static int service_load_pid_file(Service
*s
, bool may_warn
) {
1379 if ((r
= read_one_line_file(s
->pid_file
, &k
)) < 0) {
1381 log_info_unit(UNIT(s
)->id
,
1382 "PID file %s not readable (yet?) after %s.",
1383 s
->pid_file
, service_state_to_string(s
->state
));
1387 r
= parse_pid(k
, &pid
);
1393 if (kill(pid
, 0) < 0 && errno
!= EPERM
) {
1395 log_info_unit(UNIT(s
)->id
,
1396 "PID %lu read from file %s does not exist.",
1397 (unsigned long) pid
, s
->pid_file
);
1401 if (s
->main_pid_known
) {
1402 if (pid
== s
->main_pid
)
1405 log_debug_unit(UNIT(s
)->id
,
1406 "Main PID changing: %lu -> %lu",
1407 (unsigned long) s
->main_pid
, (unsigned long) pid
);
1408 service_unwatch_main_pid(s
);
1409 s
->main_pid_known
= false;
1411 log_debug_unit(UNIT(s
)->id
,
1412 "Main PID loaded: %lu", (unsigned long) pid
);
1414 if ((r
= service_set_main_pid(s
, pid
)) < 0)
1417 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1418 /* FIXME: we need to do something here */
1424 static int service_search_main_pid(Service
*s
) {
1430 /* If we know it anyway, don't ever fallback to unreliable
1432 if (s
->main_pid_known
)
1435 if (!s
->guess_main_pid
)
1438 assert(s
->main_pid
<= 0);
1440 if ((pid
= cgroup_bonding_search_main_pid_list(UNIT(s
)->cgroup_bondings
)) <= 0)
1443 log_debug_unit(UNIT(s
)->id
,
1444 "Main PID guessed: %lu", (unsigned long) pid
);
1445 if ((r
= service_set_main_pid(s
, pid
)) < 0)
1448 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1449 /* FIXME: we need to do something here */
1455 static void service_notify_sockets_dead(Service
*s
, bool failed_permanent
) {
1461 /* Notifies all our sockets when we die */
1463 if (s
->socket_fd
>= 0)
1466 SET_FOREACH(u
, UNIT(s
)->dependencies
[UNIT_TRIGGERED_BY
], i
)
1467 if (u
->type
== UNIT_SOCKET
)
1468 socket_notify_service_dead(SOCKET(u
), failed_permanent
);
1473 static void service_set_state(Service
*s
, ServiceState state
) {
1474 ServiceState old_state
;
1475 const UnitActiveState
*table
;
1478 table
= s
->type
== SERVICE_IDLE
? state_translation_table_idle
: state_translation_table
;
1480 old_state
= s
->state
;
1483 service_unwatch_pid_file(s
);
1485 if (state
!= SERVICE_START_PRE
&&
1486 state
!= SERVICE_START
&&
1487 state
!= SERVICE_START_POST
&&
1488 state
!= SERVICE_RELOAD
&&
1489 state
!= SERVICE_STOP
&&
1490 state
!= SERVICE_STOP_SIGTERM
&&
1491 state
!= SERVICE_STOP_SIGKILL
&&
1492 state
!= SERVICE_STOP_POST
&&
1493 state
!= SERVICE_FINAL_SIGTERM
&&
1494 state
!= SERVICE_FINAL_SIGKILL
&&
1495 state
!= SERVICE_AUTO_RESTART
)
1496 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1498 if (state
!= SERVICE_START
&&
1499 state
!= SERVICE_START_POST
&&
1500 state
!= SERVICE_RUNNING
&&
1501 state
!= SERVICE_RELOAD
&&
1502 state
!= SERVICE_STOP
&&
1503 state
!= SERVICE_STOP_SIGTERM
&&
1504 state
!= SERVICE_STOP_SIGKILL
) {
1505 service_unwatch_main_pid(s
);
1506 s
->main_command
= NULL
;
1509 if (state
!= SERVICE_START_PRE
&&
1510 state
!= SERVICE_START
&&
1511 state
!= SERVICE_START_POST
&&
1512 state
!= SERVICE_RELOAD
&&
1513 state
!= SERVICE_STOP
&&
1514 state
!= SERVICE_STOP_SIGTERM
&&
1515 state
!= SERVICE_STOP_SIGKILL
&&
1516 state
!= SERVICE_STOP_POST
&&
1517 state
!= SERVICE_FINAL_SIGTERM
&&
1518 state
!= SERVICE_FINAL_SIGKILL
) {
1519 service_unwatch_control_pid(s
);
1520 s
->control_command
= NULL
;
1521 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
1524 if (state
== SERVICE_FAILED
)
1525 service_notify_sockets_dead(s
, s
->result
== SERVICE_FAILURE_START_LIMIT
);
1527 if (state
== SERVICE_DEAD
||
1528 state
== SERVICE_STOP
||
1529 state
== SERVICE_STOP_SIGTERM
||
1530 state
== SERVICE_STOP_SIGKILL
||
1531 state
== SERVICE_STOP_POST
||
1532 state
== SERVICE_FINAL_SIGTERM
||
1533 state
== SERVICE_FINAL_SIGKILL
||
1534 state
== SERVICE_AUTO_RESTART
)
1535 service_notify_sockets_dead(s
, false);
1537 if (state
!= SERVICE_START_PRE
&&
1538 state
!= SERVICE_START
&&
1539 state
!= SERVICE_START_POST
&&
1540 state
!= SERVICE_RUNNING
&&
1541 state
!= SERVICE_RELOAD
&&
1542 state
!= SERVICE_STOP
&&
1543 state
!= SERVICE_STOP_SIGTERM
&&
1544 state
!= SERVICE_STOP_SIGKILL
&&
1545 state
!= SERVICE_STOP_POST
&&
1546 state
!= SERVICE_FINAL_SIGTERM
&&
1547 state
!= SERVICE_FINAL_SIGKILL
&&
1548 !(state
== SERVICE_DEAD
&& UNIT(s
)->job
)) {
1549 service_close_socket_fd(s
);
1550 service_connection_unref(s
);
1553 if (state
== SERVICE_STOP
|| state
== SERVICE_STOP_SIGTERM
)
1554 service_stop_watchdog(s
);
1556 /* For the inactive states unit_notify() will trim the cgroup,
1557 * but for exit we have to do that ourselves... */
1558 if (state
== SERVICE_EXITED
&& UNIT(s
)->manager
->n_reloading
<= 0)
1559 cgroup_bonding_trim_list(UNIT(s
)->cgroup_bondings
, true);
1561 if (old_state
!= state
)
1562 log_debug_unit(UNIT(s
)->id
,
1563 "%s changed %s -> %s", UNIT(s
)->id
,
1564 service_state_to_string(old_state
),
1565 service_state_to_string(state
));
1567 unit_notify(UNIT(s
), table
[old_state
], table
[state
], s
->reload_result
== SERVICE_SUCCESS
);
1568 s
->reload_result
= SERVICE_SUCCESS
;
1571 static int service_coldplug(Unit
*u
) {
1572 Service
*s
= SERVICE(u
);
1576 assert(s
->state
== SERVICE_DEAD
);
1578 if (s
->deserialized_state
!= s
->state
) {
1580 if (s
->deserialized_state
== SERVICE_START_PRE
||
1581 s
->deserialized_state
== SERVICE_START
||
1582 s
->deserialized_state
== SERVICE_START_POST
||
1583 s
->deserialized_state
== SERVICE_RELOAD
||
1584 s
->deserialized_state
== SERVICE_STOP
||
1585 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1586 s
->deserialized_state
== SERVICE_STOP_SIGKILL
||
1587 s
->deserialized_state
== SERVICE_STOP_POST
||
1588 s
->deserialized_state
== SERVICE_FINAL_SIGTERM
||
1589 s
->deserialized_state
== SERVICE_FINAL_SIGKILL
||
1590 s
->deserialized_state
== SERVICE_AUTO_RESTART
) {
1591 if (s
->deserialized_state
== SERVICE_AUTO_RESTART
|| s
->timeout_start_usec
> 0) {
1594 k
= s
->deserialized_state
== SERVICE_AUTO_RESTART
? s
->restart_usec
: s
->timeout_start_usec
;
1596 r
= unit_watch_timer(UNIT(s
), CLOCK_MONOTONIC
, true, k
, &s
->timer_watch
);
1602 if ((s
->deserialized_state
== SERVICE_START
&&
1603 (s
->type
== SERVICE_FORKING
||
1604 s
->type
== SERVICE_DBUS
||
1605 s
->type
== SERVICE_ONESHOT
||
1606 s
->type
== SERVICE_NOTIFY
)) ||
1607 s
->deserialized_state
== SERVICE_START_POST
||
1608 s
->deserialized_state
== SERVICE_RUNNING
||
1609 s
->deserialized_state
== SERVICE_RELOAD
||
1610 s
->deserialized_state
== SERVICE_STOP
||
1611 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1612 s
->deserialized_state
== SERVICE_STOP_SIGKILL
)
1613 if (s
->main_pid
> 0)
1614 if ((r
= unit_watch_pid(UNIT(s
), s
->main_pid
)) < 0)
1617 if (s
->deserialized_state
== SERVICE_START_PRE
||
1618 s
->deserialized_state
== SERVICE_START
||
1619 s
->deserialized_state
== SERVICE_START_POST
||
1620 s
->deserialized_state
== SERVICE_RELOAD
||
1621 s
->deserialized_state
== SERVICE_STOP
||
1622 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1623 s
->deserialized_state
== SERVICE_STOP_SIGKILL
||
1624 s
->deserialized_state
== SERVICE_STOP_POST
||
1625 s
->deserialized_state
== SERVICE_FINAL_SIGTERM
||
1626 s
->deserialized_state
== SERVICE_FINAL_SIGKILL
)
1627 if (s
->control_pid
> 0)
1628 if ((r
= unit_watch_pid(UNIT(s
), s
->control_pid
)) < 0)
1631 if (s
->deserialized_state
== SERVICE_START_POST
||
1632 s
->deserialized_state
== SERVICE_RUNNING
)
1633 service_handle_watchdog(s
);
1635 service_set_state(s
, s
->deserialized_state
);
1640 static int service_collect_fds(Service
*s
, int **fds
, unsigned *n_fds
) {
1644 unsigned rn_fds
= 0;
1651 if (s
->socket_fd
>= 0)
1654 SET_FOREACH(u
, UNIT(s
)->dependencies
[UNIT_TRIGGERED_BY
], i
) {
1659 if (u
->type
!= UNIT_SOCKET
)
1664 if ((r
= socket_collect_fds(sock
, &cfds
, &cn_fds
)) < 0)
1676 if (!(t
= new(int, rn_fds
+cn_fds
))) {
1682 memcpy(t
, rfds
, rn_fds
* sizeof(int));
1683 memcpy(t
+rn_fds
, cfds
, cn_fds
* sizeof(int));
1688 rn_fds
= rn_fds
+cn_fds
;
1703 static int service_spawn(
1708 bool apply_permissions
,
1710 bool apply_tty_stdin
,
1711 bool set_notify_socket
,
1717 int *fds
= NULL
, *fdsbuf
= NULL
;
1718 unsigned n_fds
= 0, n_env
= 0;
1719 char **argv
= NULL
, **final_env
= NULL
, **our_env
= NULL
;
1726 s
->exec_context
.std_input
== EXEC_INPUT_SOCKET
||
1727 s
->exec_context
.std_output
== EXEC_OUTPUT_SOCKET
||
1728 s
->exec_context
.std_error
== EXEC_OUTPUT_SOCKET
) {
1730 if (s
->socket_fd
>= 0) {
1731 fds
= &s
->socket_fd
;
1734 if ((r
= service_collect_fds(s
, &fdsbuf
, &n_fds
)) < 0)
1741 if (timeout
&& s
->timeout_start_usec
) {
1742 r
= unit_watch_timer(UNIT(s
), CLOCK_MONOTONIC
, true, s
->timeout_start_usec
, &s
->timer_watch
);
1746 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1748 if (!(argv
= unit_full_printf_strv(UNIT(s
), c
->argv
))) {
1753 our_env
= new0(char*, 5);
1759 if (set_notify_socket
)
1760 if (asprintf(our_env
+ n_env
++, "NOTIFY_SOCKET=%s", UNIT(s
)->manager
->notify_socket
) < 0) {
1765 if (s
->main_pid
> 0)
1766 if (asprintf(our_env
+ n_env
++, "MAINPID=%lu", (unsigned long) s
->main_pid
) < 0) {
1771 if (s
->watchdog_usec
> 0)
1772 if (asprintf(our_env
+ n_env
++, "WATCHDOG_USEC=%llu", (unsigned long long) s
->watchdog_usec
) < 0) {
1777 if (s
->meta
.manager
->running_as
!= SYSTEMD_SYSTEM
)
1778 if (asprintf(our_env
+ n_env
++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
1783 final_env
= strv_env_merge(2, UNIT(s
)->manager
->environment
, our_env
, NULL
);
1797 UNIT(s
)->manager
->confirm_spawn
,
1798 UNIT(s
)->cgroup_bondings
,
1799 UNIT(s
)->cgroup_attributes
,
1800 is_control
? "control" : NULL
,
1802 s
->type
== SERVICE_IDLE
? UNIT(s
)->manager
->idle_pipe
: NULL
,
1808 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1809 /* FIXME: we need to do something here */
1815 strv_free(final_env
);
1825 strv_free(final_env
);
1828 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1833 static int main_pid_good(Service
*s
) {
1836 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1839 /* If we know the pid file, then lets just check if it is
1841 if (s
->main_pid_known
) {
1843 /* If it's an alien child let's check if it is still
1845 if (s
->main_pid_alien
)
1846 return kill(s
->main_pid
, 0) >= 0 || errno
!= ESRCH
;
1848 /* .. otherwise assume we'll get a SIGCHLD for it,
1849 * which we really should wait for to collect exit
1850 * status and code */
1851 return s
->main_pid
> 0;
1854 /* We don't know the pid */
1858 static int control_pid_good(Service
*s
) {
1861 return s
->control_pid
> 0;
1864 static int cgroup_good(Service
*s
) {
1869 if ((r
= cgroup_bonding_is_empty_list(UNIT(s
)->cgroup_bondings
)) < 0)
1875 static void service_enter_dead(Service
*s
, ServiceResult f
, bool allow_restart
) {
1879 if (f
!= SERVICE_SUCCESS
)
1882 service_set_state(s
, s
->result
!= SERVICE_SUCCESS
? SERVICE_FAILED
: SERVICE_DEAD
);
1884 if (allow_restart
&&
1885 !s
->forbid_restart
&&
1886 (s
->restart
== SERVICE_RESTART_ALWAYS
||
1887 (s
->restart
== SERVICE_RESTART_ON_SUCCESS
&& s
->result
== SERVICE_SUCCESS
) ||
1888 (s
->restart
== SERVICE_RESTART_ON_FAILURE
&& s
->result
!= SERVICE_SUCCESS
) ||
1889 (s
->restart
== SERVICE_RESTART_ON_ABORT
&& (s
->result
== SERVICE_FAILURE_SIGNAL
||
1890 s
->result
== SERVICE_FAILURE_CORE_DUMP
))) &&
1891 (s
->result
!= SERVICE_FAILURE_EXIT_CODE
||
1892 !set_contains(s
->restart_ignore_status
.code
, INT_TO_PTR(s
->main_exec_status
.status
))) &&
1893 (s
->result
!= SERVICE_FAILURE_SIGNAL
||
1894 !set_contains(s
->restart_ignore_status
.signal
, INT_TO_PTR(s
->main_exec_status
.status
)))
1897 r
= unit_watch_timer(UNIT(s
), CLOCK_MONOTONIC
, true, s
->restart_usec
, &s
->timer_watch
);
1901 service_set_state(s
, SERVICE_AUTO_RESTART
);
1904 s
->forbid_restart
= false;
1909 log_warning_unit(UNIT(s
)->id
,
1910 "%s failed to run install restart timer: %s",
1911 UNIT(s
)->id
, strerror(-r
));
1912 service_enter_dead(s
, SERVICE_FAILURE_RESOURCES
, false);
1915 static void service_enter_signal(Service
*s
, ServiceState state
, ServiceResult f
);
1917 static void service_enter_stop_post(Service
*s
, ServiceResult f
) {
1921 if (f
!= SERVICE_SUCCESS
)
1924 service_unwatch_control_pid(s
);
1926 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP_POST
])) {
1927 s
->control_command_id
= SERVICE_EXEC_STOP_POST
;
1929 r
= service_spawn(s
,
1933 !s
->permissions_start_only
,
1934 !s
->root_directory_start_only
,
1943 service_set_state(s
, SERVICE_STOP_POST
);
1945 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_SUCCESS
);
1950 log_warning_unit(UNIT(s
)->id
,
1951 "%s failed to run 'stop-post' task: %s",
1952 UNIT(s
)->id
, strerror(-r
));
1953 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
1956 static void service_enter_signal(Service
*s
, ServiceState state
, ServiceResult f
) {
1961 if (f
!= SERVICE_SUCCESS
)
1964 r
= unit_kill_context(
1967 state
!= SERVICE_STOP_SIGTERM
&& state
!= SERVICE_FINAL_SIGTERM
,
1975 if (s
->timeout_stop_usec
> 0) {
1976 r
= unit_watch_timer(UNIT(s
), CLOCK_MONOTONIC
, true, s
->timeout_stop_usec
, &s
->timer_watch
);
1981 service_set_state(s
, state
);
1982 } else if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
1983 service_enter_stop_post(s
, SERVICE_SUCCESS
);
1985 service_enter_dead(s
, SERVICE_SUCCESS
, true);
1990 log_warning_unit(UNIT(s
)->id
,
1991 "%s failed to kill processes: %s", UNIT(s
)->id
, strerror(-r
));
1993 if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
1994 service_enter_stop_post(s
, SERVICE_FAILURE_RESOURCES
);
1996 service_enter_dead(s
, SERVICE_FAILURE_RESOURCES
, true);
1999 static void service_enter_stop(Service
*s
, ServiceResult f
) {
2004 if (f
!= SERVICE_SUCCESS
)
2007 service_unwatch_control_pid(s
);
2009 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP
])) {
2010 s
->control_command_id
= SERVICE_EXEC_STOP
;
2012 r
= service_spawn(s
,
2016 !s
->permissions_start_only
,
2017 !s
->root_directory_start_only
,
2025 service_set_state(s
, SERVICE_STOP
);
2027 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_SUCCESS
);
2032 log_warning_unit(UNIT(s
)->id
,
2033 "%s failed to run 'stop' task: %s", UNIT(s
)->id
, strerror(-r
));
2034 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
2037 static void service_enter_running(Service
*s
, ServiceResult f
) {
2038 int main_pid_ok
, cgroup_ok
;
2041 if (f
!= SERVICE_SUCCESS
)
2044 main_pid_ok
= main_pid_good(s
);
2045 cgroup_ok
= cgroup_good(s
);
2047 if ((main_pid_ok
> 0 || (main_pid_ok
< 0 && cgroup_ok
!= 0)) &&
2048 (s
->bus_name_good
|| s
->type
!= SERVICE_DBUS
))
2049 service_set_state(s
, SERVICE_RUNNING
);
2050 else if (s
->remain_after_exit
)
2051 service_set_state(s
, SERVICE_EXITED
);
2053 service_enter_stop(s
, SERVICE_SUCCESS
);
2056 static void service_enter_start_post(Service
*s
) {
2060 service_unwatch_control_pid(s
);
2062 if (s
->watchdog_usec
> 0)
2063 service_reset_watchdog(s
);
2065 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_POST
])) {
2066 s
->control_command_id
= SERVICE_EXEC_START_POST
;
2068 r
= service_spawn(s
,
2072 !s
->permissions_start_only
,
2073 !s
->root_directory_start_only
,
2081 service_set_state(s
, SERVICE_START_POST
);
2083 service_enter_running(s
, SERVICE_SUCCESS
);
2088 log_warning_unit(UNIT(s
)->id
,
2089 "%s failed to run 'start-post' task: %s", UNIT(s
)->id
, strerror(-r
));
2090 service_enter_stop(s
, SERVICE_FAILURE_RESOURCES
);
2093 static void service_enter_start(Service
*s
) {
2100 assert(s
->exec_command
[SERVICE_EXEC_START
]);
2101 assert(!s
->exec_command
[SERVICE_EXEC_START
]->command_next
|| s
->type
== SERVICE_ONESHOT
);
2103 if (s
->type
== SERVICE_FORKING
)
2104 service_unwatch_control_pid(s
);
2106 service_unwatch_main_pid(s
);
2108 /* We want to ensure that nobody leaks processes from
2109 * START_PRE here, so let's go on a killing spree, People
2110 * should not spawn long running processes from START_PRE. */
2111 cgroup_bonding_kill_list(UNIT(s
)->cgroup_bondings
, SIGKILL
, true, true, NULL
, "control");
2113 if (s
->type
== SERVICE_FORKING
) {
2114 s
->control_command_id
= SERVICE_EXEC_START
;
2115 c
= s
->control_command
= s
->exec_command
[SERVICE_EXEC_START
];
2117 s
->main_command
= NULL
;
2119 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
2120 s
->control_command
= NULL
;
2122 c
= s
->main_command
= s
->exec_command
[SERVICE_EXEC_START
];
2125 r
= service_spawn(s
,
2127 s
->type
== SERVICE_FORKING
|| s
->type
== SERVICE_DBUS
|| s
->type
== SERVICE_NOTIFY
|| s
->type
== SERVICE_ONESHOT
,
2132 s
->notify_access
!= NOTIFY_NONE
,
2138 if (s
->type
== SERVICE_SIMPLE
|| s
->type
== SERVICE_IDLE
) {
2139 /* For simple services we immediately start
2140 * the START_POST binaries. */
2142 service_set_main_pid(s
, pid
);
2143 service_enter_start_post(s
);
2145 } else if (s
->type
== SERVICE_FORKING
) {
2147 /* For forking services we wait until the start
2148 * process exited. */
2150 s
->control_pid
= pid
;
2151 service_set_state(s
, SERVICE_START
);
2153 } else if (s
->type
== SERVICE_ONESHOT
||
2154 s
->type
== SERVICE_DBUS
||
2155 s
->type
== SERVICE_NOTIFY
) {
2157 /* For oneshot services we wait until the start
2158 * process exited, too, but it is our main process. */
2160 /* For D-Bus services we know the main pid right away,
2161 * but wait for the bus name to appear on the
2162 * bus. Notify services are similar. */
2164 service_set_main_pid(s
, pid
);
2165 service_set_state(s
, SERVICE_START
);
2167 assert_not_reached("Unknown service type");
2172 log_warning_unit(UNIT(s
)->id
,
2173 "%s failed to run 'start' task: %s", UNIT(s
)->id
, strerror(-r
));
2174 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
2177 static void service_enter_start_pre(Service
*s
) {
2182 service_unwatch_control_pid(s
);
2184 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_PRE
])) {
2186 /* Before we start anything, let's clear up what might
2187 * be left from previous runs. */
2188 cgroup_bonding_kill_list(UNIT(s
)->cgroup_bondings
, SIGKILL
, true, true, NULL
, "control");
2190 s
->control_command_id
= SERVICE_EXEC_START_PRE
;
2192 r
= service_spawn(s
,
2196 !s
->permissions_start_only
,
2197 !s
->root_directory_start_only
,
2205 service_set_state(s
, SERVICE_START_PRE
);
2207 service_enter_start(s
);
2212 log_warning_unit(UNIT(s
)->id
,
2213 "%s failed to run 'start-pre' task: %s", UNIT(s
)->id
, strerror(-r
));
2214 service_enter_dead(s
, SERVICE_FAILURE_RESOURCES
, true);
2217 static void service_enter_restart(Service
*s
) {
2222 dbus_error_init(&error
);
2224 if (UNIT(s
)->job
&& UNIT(s
)->job
->type
== JOB_STOP
) {
2225 /* Don't restart things if we are going down anyway */
2226 log_info_unit(UNIT(s
)->id
,
2227 "Stop job pending for unit, delaying automatic restart.");
2229 r
= unit_watch_timer(UNIT(s
), CLOCK_MONOTONIC
, true, s
->restart_usec
, &s
->timer_watch
);
2236 /* Any units that are bound to this service must also be
2237 * restarted. We use JOB_RESTART (instead of the more obvious
2238 * JOB_START) here so that those dependency jobs will be added
2240 r
= manager_add_job(UNIT(s
)->manager
, JOB_RESTART
, UNIT(s
), JOB_FAIL
, false, &error
, NULL
);
2244 /* Note that we stay in the SERVICE_AUTO_RESTART state here,
2245 * it will be canceled as part of the service_stop() call that
2246 * is executed as part of JOB_RESTART. */
2248 log_debug_unit(UNIT(s
)->id
,
2249 "%s scheduled restart job.", UNIT(s
)->id
);
2253 log_warning_unit(UNIT(s
)->id
,
2254 "%s failed to schedule restart job: %s",
2255 UNIT(s
)->id
, bus_error(&error
, -r
));
2256 service_enter_dead(s
, SERVICE_FAILURE_RESOURCES
, false);
2258 dbus_error_free(&error
);
2261 static void service_enter_reload(Service
*s
) {
2266 service_unwatch_control_pid(s
);
2268 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_RELOAD
])) {
2269 s
->control_command_id
= SERVICE_EXEC_RELOAD
;
2271 r
= service_spawn(s
,
2275 !s
->permissions_start_only
,
2276 !s
->root_directory_start_only
,
2284 service_set_state(s
, SERVICE_RELOAD
);
2286 service_enter_running(s
, SERVICE_SUCCESS
);
2291 log_warning_unit(UNIT(s
)->id
,
2292 "%s failed to run 'reload' task: %s",
2293 UNIT(s
)->id
, strerror(-r
));
2294 s
->reload_result
= SERVICE_FAILURE_RESOURCES
;
2295 service_enter_running(s
, SERVICE_SUCCESS
);
2298 static void service_run_next_control(Service
*s
) {
2302 assert(s
->control_command
);
2303 assert(s
->control_command
->command_next
);
2305 assert(s
->control_command_id
!= SERVICE_EXEC_START
);
2307 s
->control_command
= s
->control_command
->command_next
;
2308 service_unwatch_control_pid(s
);
2310 r
= service_spawn(s
,
2314 !s
->permissions_start_only
,
2315 !s
->root_directory_start_only
,
2316 s
->control_command_id
== SERVICE_EXEC_START_PRE
||
2317 s
->control_command_id
== SERVICE_EXEC_STOP_POST
,
2327 log_warning_unit(UNIT(s
)->id
,
2328 "%s failed to run next control task: %s",
2329 UNIT(s
)->id
, strerror(-r
));
2331 if (s
->state
== SERVICE_START_PRE
)
2332 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
2333 else if (s
->state
== SERVICE_STOP
)
2334 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
2335 else if (s
->state
== SERVICE_STOP_POST
)
2336 service_enter_dead(s
, SERVICE_FAILURE_RESOURCES
, true);
2337 else if (s
->state
== SERVICE_RELOAD
) {
2338 s
->reload_result
= SERVICE_FAILURE_RESOURCES
;
2339 service_enter_running(s
, SERVICE_SUCCESS
);
2341 service_enter_stop(s
, SERVICE_FAILURE_RESOURCES
);
2344 static void service_run_next_main(Service
*s
) {
2349 assert(s
->main_command
);
2350 assert(s
->main_command
->command_next
);
2351 assert(s
->type
== SERVICE_ONESHOT
);
2353 s
->main_command
= s
->main_command
->command_next
;
2354 service_unwatch_main_pid(s
);
2356 r
= service_spawn(s
,
2363 s
->notify_access
!= NOTIFY_NONE
,
2369 service_set_main_pid(s
, pid
);
2374 log_warning_unit(UNIT(s
)->id
,
2375 "%s failed to run next main task: %s", UNIT(s
)->id
, strerror(-r
));
2376 service_enter_stop(s
, SERVICE_FAILURE_RESOURCES
);
2379 static int service_start_limit_test(Service
*s
) {
2382 if (ratelimit_test(&s
->start_limit
))
2385 switch (s
->start_limit_action
) {
2387 case SERVICE_START_LIMIT_NONE
:
2388 log_warning_unit(UNIT(s
)->id
,
2389 "%s start request repeated too quickly, refusing to start.",
2393 case SERVICE_START_LIMIT_REBOOT
: {
2397 dbus_error_init(&error
);
2399 log_warning_unit(UNIT(s
)->id
,
2400 "%s start request repeated too quickly, rebooting.", UNIT(s
)->id
);
2402 r
= manager_add_job_by_name(UNIT(s
)->manager
, JOB_START
, SPECIAL_REBOOT_TARGET
, JOB_REPLACE
, true, &error
, NULL
);
2404 log_error_unit(UNIT(s
)->id
,
2405 "Failed to reboot: %s.", bus_error(&error
, r
));
2406 dbus_error_free(&error
);
2412 case SERVICE_START_LIMIT_REBOOT_FORCE
:
2413 log_warning_unit(UNIT(s
)->id
,
2414 "%s start request repeated too quickly, forcibly rebooting.", UNIT(s
)->id
);
2415 UNIT(s
)->manager
->exit_code
= MANAGER_REBOOT
;
2418 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE
:
2419 log_warning_unit(UNIT(s
)->id
,
2420 "%s start request repeated too quickly, rebooting immediately.", UNIT(s
)->id
);
2422 reboot(RB_AUTOBOOT
);
2426 log_error_unit(UNIT(s
)->id
,
2427 "start limit action=%i", s
->start_limit_action
);
2428 assert_not_reached("Unknown StartLimitAction.");
2434 static int service_start(Unit
*u
) {
2435 Service
*s
= SERVICE(u
);
2440 /* We cannot fulfill this request right now, try again later
2442 if (s
->state
== SERVICE_STOP
||
2443 s
->state
== SERVICE_STOP_SIGTERM
||
2444 s
->state
== SERVICE_STOP_SIGKILL
||
2445 s
->state
== SERVICE_STOP_POST
||
2446 s
->state
== SERVICE_FINAL_SIGTERM
||
2447 s
->state
== SERVICE_FINAL_SIGKILL
)
2450 /* Already on it! */
2451 if (s
->state
== SERVICE_START_PRE
||
2452 s
->state
== SERVICE_START
||
2453 s
->state
== SERVICE_START_POST
)
2456 /* A service that will be restarted must be stopped first to
2457 * trigger BindsTo and/or OnFailure dependencies. If a user
2458 * does not want to wait for the holdoff time to elapse, the
2459 * service should be manually restarted, not started. We
2460 * simply return EAGAIN here, so that any start jobs stay
2461 * queued, and assume that the auto restart timer will
2462 * eventually trigger the restart. */
2463 if (s
->state
== SERVICE_AUTO_RESTART
)
2466 assert(s
->state
== SERVICE_DEAD
|| s
->state
== SERVICE_FAILED
);
2468 /* Make sure we don't enter a busy loop of some kind. */
2469 r
= service_start_limit_test(s
);
2471 service_enter_dead(s
, SERVICE_FAILURE_START_LIMIT
, false);
2475 s
->result
= SERVICE_SUCCESS
;
2476 s
->reload_result
= SERVICE_SUCCESS
;
2477 s
->main_pid_known
= false;
2478 s
->main_pid_alien
= false;
2479 s
->forbid_restart
= false;
2481 service_enter_start_pre(s
);
2485 static int service_stop(Unit
*u
) {
2486 Service
*s
= SERVICE(u
);
2490 /* Don't create restart jobs from here. */
2491 s
->forbid_restart
= true;
2494 if (s
->state
== SERVICE_STOP
||
2495 s
->state
== SERVICE_STOP_SIGTERM
||
2496 s
->state
== SERVICE_STOP_SIGKILL
||
2497 s
->state
== SERVICE_STOP_POST
||
2498 s
->state
== SERVICE_FINAL_SIGTERM
||
2499 s
->state
== SERVICE_FINAL_SIGKILL
)
2502 /* A restart will be scheduled or is in progress. */
2503 if (s
->state
== SERVICE_AUTO_RESTART
) {
2504 service_set_state(s
, SERVICE_DEAD
);
2508 /* If there's already something running we go directly into
2510 if (s
->state
== SERVICE_START_PRE
||
2511 s
->state
== SERVICE_START
||
2512 s
->state
== SERVICE_START_POST
||
2513 s
->state
== SERVICE_RELOAD
) {
2514 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_SUCCESS
);
2518 assert(s
->state
== SERVICE_RUNNING
||
2519 s
->state
== SERVICE_EXITED
);
2521 service_enter_stop(s
, SERVICE_SUCCESS
);
2525 static int service_reload(Unit
*u
) {
2526 Service
*s
= SERVICE(u
);
2530 assert(s
->state
== SERVICE_RUNNING
|| s
->state
== SERVICE_EXITED
);
2532 service_enter_reload(s
);
2536 static bool service_can_reload(Unit
*u
) {
2537 Service
*s
= SERVICE(u
);
2541 return !!s
->exec_command
[SERVICE_EXEC_RELOAD
];
2544 static int service_serialize(Unit
*u
, FILE *f
, FDSet
*fds
) {
2545 Service
*s
= SERVICE(u
);
2551 unit_serialize_item(u
, f
, "state", service_state_to_string(s
->state
));
2552 unit_serialize_item(u
, f
, "result", service_result_to_string(s
->result
));
2553 unit_serialize_item(u
, f
, "reload-result", service_result_to_string(s
->reload_result
));
2555 if (s
->control_pid
> 0)
2556 unit_serialize_item_format(u
, f
, "control-pid", "%lu", (unsigned long) s
->control_pid
);
2558 if (s
->main_pid_known
&& s
->main_pid
> 0)
2559 unit_serialize_item_format(u
, f
, "main-pid", "%lu", (unsigned long) s
->main_pid
);
2561 unit_serialize_item(u
, f
, "main-pid-known", yes_no(s
->main_pid_known
));
2564 unit_serialize_item(u
, f
, "status-text", s
->status_text
);
2566 /* FIXME: There's a minor uncleanliness here: if there are
2567 * multiple commands attached here, we will start from the
2568 * first one again */
2569 if (s
->control_command_id
>= 0)
2570 unit_serialize_item(u
, f
, "control-command", service_exec_command_to_string(s
->control_command_id
));
2572 if (s
->socket_fd
>= 0) {
2575 if ((copy
= fdset_put_dup(fds
, s
->socket_fd
)) < 0)
2578 unit_serialize_item_format(u
, f
, "socket-fd", "%i", copy
);
2581 if (s
->main_exec_status
.pid
> 0) {
2582 unit_serialize_item_format(u
, f
, "main-exec-status-pid", "%lu", (unsigned long) s
->main_exec_status
.pid
);
2583 dual_timestamp_serialize(f
, "main-exec-status-start", &s
->main_exec_status
.start_timestamp
);
2584 dual_timestamp_serialize(f
, "main-exec-status-exit", &s
->main_exec_status
.exit_timestamp
);
2586 if (dual_timestamp_is_set(&s
->main_exec_status
.exit_timestamp
)) {
2587 unit_serialize_item_format(u
, f
, "main-exec-status-code", "%i", s
->main_exec_status
.code
);
2588 unit_serialize_item_format(u
, f
, "main-exec-status-status", "%i", s
->main_exec_status
.status
);
2591 if (dual_timestamp_is_set(&s
->watchdog_timestamp
))
2592 dual_timestamp_serialize(f
, "watchdog-timestamp", &s
->watchdog_timestamp
);
2597 static int service_deserialize_item(Unit
*u
, const char *key
, const char *value
, FDSet
*fds
) {
2598 Service
*s
= SERVICE(u
);
2605 if (streq(key
, "state")) {
2608 if ((state
= service_state_from_string(value
)) < 0)
2609 log_debug_unit(u
->id
, "Failed to parse state value %s", value
);
2611 s
->deserialized_state
= state
;
2612 } else if (streq(key
, "result")) {
2615 f
= service_result_from_string(value
);
2617 log_debug_unit(u
->id
, "Failed to parse result value %s", value
);
2618 else if (f
!= SERVICE_SUCCESS
)
2621 } else if (streq(key
, "reload-result")) {
2624 f
= service_result_from_string(value
);
2626 log_debug_unit(u
->id
, "Failed to parse reload result value %s", value
);
2627 else if (f
!= SERVICE_SUCCESS
)
2628 s
->reload_result
= f
;
2630 } else if (streq(key
, "control-pid")) {
2633 if (parse_pid(value
, &pid
) < 0)
2634 log_debug_unit(u
->id
, "Failed to parse control-pid value %s", value
);
2636 s
->control_pid
= pid
;
2637 } else if (streq(key
, "main-pid")) {
2640 if (parse_pid(value
, &pid
) < 0)
2641 log_debug_unit(u
->id
, "Failed to parse main-pid value %s", value
);
2643 service_set_main_pid(s
, (pid_t
) pid
);
2644 } else if (streq(key
, "main-pid-known")) {
2647 if ((b
= parse_boolean(value
)) < 0)
2648 log_debug_unit(u
->id
, "Failed to parse main-pid-known value %s", value
);
2650 s
->main_pid_known
= b
;
2651 } else if (streq(key
, "status-text")) {
2654 if ((t
= strdup(value
))) {
2655 free(s
->status_text
);
2659 } else if (streq(key
, "control-command")) {
2660 ServiceExecCommand id
;
2662 if ((id
= service_exec_command_from_string(value
)) < 0)
2663 log_debug_unit(u
->id
, "Failed to parse exec-command value %s", value
);
2665 s
->control_command_id
= id
;
2666 s
->control_command
= s
->exec_command
[id
];
2668 } else if (streq(key
, "socket-fd")) {
2671 if (safe_atoi(value
, &fd
) < 0 || fd
< 0 || !fdset_contains(fds
, fd
))
2672 log_debug_unit(u
->id
, "Failed to parse socket-fd value %s", value
);
2675 if (s
->socket_fd
>= 0)
2676 close_nointr_nofail(s
->socket_fd
);
2677 s
->socket_fd
= fdset_remove(fds
, fd
);
2679 } else if (streq(key
, "main-exec-status-pid")) {
2682 if (parse_pid(value
, &pid
) < 0)
2683 log_debug_unit(u
->id
, "Failed to parse main-exec-status-pid value %s", value
);
2685 s
->main_exec_status
.pid
= pid
;
2686 } else if (streq(key
, "main-exec-status-code")) {
2689 if (safe_atoi(value
, &i
) < 0)
2690 log_debug_unit(u
->id
, "Failed to parse main-exec-status-code value %s", value
);
2692 s
->main_exec_status
.code
= i
;
2693 } else if (streq(key
, "main-exec-status-status")) {
2696 if (safe_atoi(value
, &i
) < 0)
2697 log_debug_unit(u
->id
, "Failed to parse main-exec-status-status value %s", value
);
2699 s
->main_exec_status
.status
= i
;
2700 } else if (streq(key
, "main-exec-status-start"))
2701 dual_timestamp_deserialize(value
, &s
->main_exec_status
.start_timestamp
);
2702 else if (streq(key
, "main-exec-status-exit"))
2703 dual_timestamp_deserialize(value
, &s
->main_exec_status
.exit_timestamp
);
2704 else if (streq(key
, "watchdog-timestamp"))
2705 dual_timestamp_deserialize(value
, &s
->watchdog_timestamp
);
2707 log_debug_unit(u
->id
, "Unknown serialization key '%s'", key
);
2712 static UnitActiveState
service_active_state(Unit
*u
) {
2713 const UnitActiveState
*table
;
2717 table
= SERVICE(u
)->type
== SERVICE_IDLE
? state_translation_table_idle
: state_translation_table
;
2719 return table
[SERVICE(u
)->state
];
2722 static const char *service_sub_state_to_string(Unit
*u
) {
2725 return service_state_to_string(SERVICE(u
)->state
);
2728 static bool service_check_gc(Unit
*u
) {
2729 Service
*s
= SERVICE(u
);
2733 /* Never clean up services that still have a process around,
2734 * even if the service is formally dead. */
2735 if (cgroup_good(s
) > 0 ||
2736 main_pid_good(s
) > 0 ||
2737 control_pid_good(s
) > 0)
2740 #ifdef HAVE_SYSV_COMPAT
2748 static bool service_check_snapshot(Unit
*u
) {
2749 Service
*s
= SERVICE(u
);
2753 return !s
->got_socket_fd
;
2756 static int service_retry_pid_file(Service
*s
) {
2759 assert(s
->pid_file
);
2760 assert(s
->state
== SERVICE_START
|| s
->state
== SERVICE_START_POST
);
2762 r
= service_load_pid_file(s
, false);
2766 service_unwatch_pid_file(s
);
2768 service_enter_running(s
, SERVICE_SUCCESS
);
2772 static int service_watch_pid_file(Service
*s
) {
2775 log_debug_unit(UNIT(s
)->id
,
2776 "Setting watch for %s's PID file %s",
2777 UNIT(s
)->id
, s
->pid_file_pathspec
->path
);
2778 r
= path_spec_watch(s
->pid_file_pathspec
, UNIT(s
));
2782 /* the pidfile might have appeared just before we set the watch */
2783 service_retry_pid_file(s
);
2787 log_error_unit(UNIT(s
)->id
,
2788 "Failed to set a watch for %s's PID file %s: %s",
2789 UNIT(s
)->id
, s
->pid_file_pathspec
->path
, strerror(-r
));
2790 service_unwatch_pid_file(s
);
2794 static int service_demand_pid_file(Service
*s
) {
2797 assert(s
->pid_file
);
2798 assert(!s
->pid_file_pathspec
);
2800 ps
= new0(PathSpec
, 1);
2804 ps
->path
= strdup(s
->pid_file
);
2810 path_kill_slashes(ps
->path
);
2812 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2813 * keep their PID file open all the time. */
2814 ps
->type
= PATH_MODIFIED
;
2815 ps
->inotify_fd
= -1;
2817 s
->pid_file_pathspec
= ps
;
2819 return service_watch_pid_file(s
);
2822 static void service_fd_event(Unit
*u
, int fd
, uint32_t events
, Watch
*w
) {
2823 Service
*s
= SERVICE(u
);
2827 assert(s
->state
== SERVICE_START
|| s
->state
== SERVICE_START_POST
);
2828 assert(s
->pid_file_pathspec
);
2829 assert(path_spec_owns_inotify_fd(s
->pid_file_pathspec
, fd
));
2831 log_debug_unit(u
->id
, "inotify event for %s", u
->id
);
2833 if (path_spec_fd_event(s
->pid_file_pathspec
, events
) < 0)
2836 if (service_retry_pid_file(s
) == 0)
2839 if (service_watch_pid_file(s
) < 0)
2844 service_unwatch_pid_file(s
);
2845 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
2848 static void service_sigchld_event(Unit
*u
, pid_t pid
, int code
, int status
) {
2849 Service
*s
= SERVICE(u
);
2855 if (UNIT(s
)->fragment_path
? is_clean_exit(code
, status
, &s
->success_status
) :
2856 is_clean_exit_lsb(code
, status
, &s
->success_status
))
2857 f
= SERVICE_SUCCESS
;
2858 else if (code
== CLD_EXITED
)
2859 f
= SERVICE_FAILURE_EXIT_CODE
;
2860 else if (code
== CLD_KILLED
)
2861 f
= SERVICE_FAILURE_SIGNAL
;
2862 else if (code
== CLD_DUMPED
)
2863 f
= SERVICE_FAILURE_CORE_DUMP
;
2865 assert_not_reached("Unknown code");
2867 if (s
->main_pid
== pid
) {
2868 /* Forking services may occasionally move to a new PID.
2869 * As long as they update the PID file before exiting the old
2870 * PID, they're fine. */
2871 if (service_load_pid_file(s
, false) == 0)
2875 exec_status_exit(&s
->main_exec_status
, &s
->exec_context
, pid
, code
, status
);
2877 if (s
->main_command
) {
2878 /* If this is not a forking service than the
2879 * main process got started and hence we copy
2880 * the exit status so that it is recorded both
2881 * as main and as control process exit
2884 s
->main_command
->exec_status
= s
->main_exec_status
;
2886 if (s
->main_command
->ignore
)
2887 f
= SERVICE_SUCCESS
;
2888 } else if (s
->exec_command
[SERVICE_EXEC_START
]) {
2890 /* If this is a forked process, then we should
2891 * ignore the return value if this was
2892 * configured for the starter process */
2894 if (s
->exec_command
[SERVICE_EXEC_START
]->ignore
)
2895 f
= SERVICE_SUCCESS
;
2898 log_struct_unit(f
== SERVICE_SUCCESS
? LOG_DEBUG
: LOG_NOTICE
,
2900 "MESSAGE=%s: main process exited, code=%s, status=%i/%s",
2901 u
->id
, sigchld_code_to_string(code
), status
,
2902 strna(code
== CLD_EXITED
2903 ? exit_status_to_string(status
, EXIT_STATUS_FULL
)
2904 : signal_to_string(status
)),
2905 "EXIT_CODE=%s", sigchld_code_to_string(code
),
2906 "EXIT_STATUS=%i", status
,
2909 if (f
!= SERVICE_SUCCESS
)
2912 if (s
->main_command
&&
2913 s
->main_command
->command_next
&&
2914 f
== SERVICE_SUCCESS
) {
2916 /* There is another command to *
2917 * execute, so let's do that. */
2919 log_debug_unit(u
->id
,
2920 "%s running next main command for state %s",
2921 u
->id
, service_state_to_string(s
->state
));
2922 service_run_next_main(s
);
2926 /* The service exited, so the service is officially
2928 s
->main_command
= NULL
;
2932 case SERVICE_START_POST
:
2933 case SERVICE_RELOAD
:
2935 /* Need to wait until the operation is
2940 if (s
->type
== SERVICE_ONESHOT
) {
2941 /* This was our main goal, so let's go on */
2942 if (f
== SERVICE_SUCCESS
)
2943 service_enter_start_post(s
);
2945 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, f
);
2951 case SERVICE_RUNNING
:
2952 service_enter_running(s
, f
);
2955 case SERVICE_STOP_SIGTERM
:
2956 case SERVICE_STOP_SIGKILL
:
2958 if (!control_pid_good(s
))
2959 service_enter_stop_post(s
, f
);
2961 /* If there is still a control process, wait for that first */
2965 assert_not_reached("Uh, main process died at wrong time.");
2969 } else if (s
->control_pid
== pid
) {
2973 if (s
->control_command
) {
2974 exec_status_exit(&s
->control_command
->exec_status
, &s
->exec_context
, pid
, code
, status
);
2976 if (s
->control_command
->ignore
)
2977 f
= SERVICE_SUCCESS
;
2980 log_full_unit(f
== SERVICE_SUCCESS
? LOG_DEBUG
: LOG_NOTICE
, u
->id
,
2981 "%s: control process exited, code=%s status=%i",
2982 u
->id
, sigchld_code_to_string(code
), status
);
2984 if (f
!= SERVICE_SUCCESS
)
2987 /* Immediately get rid of the cgroup, so that the
2988 * kernel doesn't delay the cgroup empty messages for
2989 * the service cgroup any longer than necessary */
2990 cgroup_bonding_kill_list(UNIT(s
)->cgroup_bondings
, SIGKILL
, true, true, NULL
, "control");
2992 if (s
->control_command
&&
2993 s
->control_command
->command_next
&&
2994 f
== SERVICE_SUCCESS
) {
2996 /* There is another command to *
2997 * execute, so let's do that. */
2999 log_debug_unit(u
->id
,
3000 "%s running next control command for state %s",
3001 u
->id
, service_state_to_string(s
->state
));
3002 service_run_next_control(s
);
3005 /* No further commands for this step, so let's
3006 * figure out what to do next */
3008 s
->control_command
= NULL
;
3009 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
3011 log_debug_unit(u
->id
,
3012 "%s got final SIGCHLD for state %s",
3013 u
->id
, service_state_to_string(s
->state
));
3017 case SERVICE_START_PRE
:
3018 if (f
== SERVICE_SUCCESS
)
3019 service_enter_start(s
);
3021 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, f
);
3025 if (s
->type
!= SERVICE_FORKING
)
3026 /* Maybe spurious event due to a reload that changed the type? */
3029 if (f
!= SERVICE_SUCCESS
) {
3030 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, f
);
3035 bool has_start_post
;
3038 /* Let's try to load the pid file here if we can.
3039 * The PID file might actually be created by a START_POST
3040 * script. In that case don't worry if the loading fails. */
3042 has_start_post
= !!s
->exec_command
[SERVICE_EXEC_START_POST
];
3043 r
= service_load_pid_file(s
, !has_start_post
);
3044 if (!has_start_post
&& r
< 0) {
3045 r
= service_demand_pid_file(s
);
3046 if (r
< 0 || !cgroup_good(s
))
3047 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
3051 service_search_main_pid(s
);
3053 service_enter_start_post(s
);
3056 case SERVICE_START_POST
:
3057 if (f
!= SERVICE_SUCCESS
) {
3058 service_enter_stop(s
, f
);
3065 r
= service_load_pid_file(s
, true);
3067 r
= service_demand_pid_file(s
);
3068 if (r
< 0 || !cgroup_good(s
))
3069 service_enter_stop(s
, SERVICE_FAILURE_RESOURCES
);
3073 service_search_main_pid(s
);
3075 service_enter_running(s
, SERVICE_SUCCESS
);
3078 case SERVICE_RELOAD
:
3079 if (f
== SERVICE_SUCCESS
) {
3080 service_load_pid_file(s
, true);
3081 service_search_main_pid(s
);
3084 s
->reload_result
= f
;
3085 service_enter_running(s
, SERVICE_SUCCESS
);
3089 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, f
);
3092 case SERVICE_STOP_SIGTERM
:
3093 case SERVICE_STOP_SIGKILL
:
3094 if (main_pid_good(s
) <= 0)
3095 service_enter_stop_post(s
, f
);
3097 /* If there is still a service
3098 * process around, wait until
3099 * that one quit, too */
3102 case SERVICE_STOP_POST
:
3103 case SERVICE_FINAL_SIGTERM
:
3104 case SERVICE_FINAL_SIGKILL
:
3105 service_enter_dead(s
, f
, true);
3109 assert_not_reached("Uh, control process died at wrong time.");
3114 /* Notify clients about changed exit status */
3115 unit_add_to_dbus_queue(u
);
3118 static void service_timer_event(Unit
*u
, uint64_t elapsed
, Watch
* w
) {
3119 Service
*s
= SERVICE(u
);
3122 assert(elapsed
== 1);
3124 if (w
== &s
->watchdog_watch
) {
3125 service_handle_watchdog(s
);
3129 assert(w
== &s
->timer_watch
);
3133 case SERVICE_START_PRE
:
3135 log_warning_unit(u
->id
,
3136 "%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_unit(u
->id
,
3142 "%s operation timed out. Stopping.", u
->id
);
3143 service_enter_stop(s
, SERVICE_FAILURE_TIMEOUT
);
3146 case SERVICE_RELOAD
:
3147 log_warning_unit(u
->id
,
3148 "%s operation timed out. Stopping.", u
->id
);
3149 s
->reload_result
= SERVICE_FAILURE_TIMEOUT
;
3150 service_enter_running(s
, SERVICE_SUCCESS
);
3154 log_warning_unit(u
->id
,
3155 "%s stopping timed out. Terminating.", u
->id
);
3156 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_FAILURE_TIMEOUT
);
3159 case SERVICE_STOP_SIGTERM
:
3160 if (s
->kill_context
.send_sigkill
) {
3161 log_warning_unit(u
->id
,
3162 "%s stopping timed out. Killing.", u
->id
);
3163 service_enter_signal(s
, SERVICE_STOP_SIGKILL
, SERVICE_FAILURE_TIMEOUT
);
3165 log_warning_unit(u
->id
,
3166 "%s stopping timed out. Skipping SIGKILL.", u
->id
);
3167 service_enter_stop_post(s
, SERVICE_FAILURE_TIMEOUT
);
3172 case SERVICE_STOP_SIGKILL
:
3173 /* Uh, we sent a SIGKILL and it is still not gone?
3174 * Must be something we cannot kill, so let's just be
3175 * weirded out and continue */
3177 log_warning_unit(u
->id
,
3178 "%s still around after SIGKILL. Ignoring.", u
->id
);
3179 service_enter_stop_post(s
, SERVICE_FAILURE_TIMEOUT
);
3182 case SERVICE_STOP_POST
:
3183 log_warning_unit(u
->id
,
3184 "%s stopping timed out (2). Terminating.", u
->id
);
3185 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_TIMEOUT
);
3188 case SERVICE_FINAL_SIGTERM
:
3189 if (s
->kill_context
.send_sigkill
) {
3190 log_warning_unit(u
->id
,
3191 "%s stopping timed out (2). Killing.", u
->id
);
3192 service_enter_signal(s
, SERVICE_FINAL_SIGKILL
, SERVICE_FAILURE_TIMEOUT
);
3194 log_warning_unit(u
->id
,
3195 "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
3197 service_enter_dead(s
, SERVICE_FAILURE_TIMEOUT
, false);
3202 case SERVICE_FINAL_SIGKILL
:
3203 log_warning_unit(u
->id
,
3204 "%s still around after SIGKILL (2). Entering failed mode.", u
->id
);
3205 service_enter_dead(s
, SERVICE_FAILURE_TIMEOUT
, true);
3208 case SERVICE_AUTO_RESTART
:
3209 log_info_unit(u
->id
,
3210 "%s holdoff time over, scheduling restart.", u
->id
);
3211 service_enter_restart(s
);
3215 assert_not_reached("Timeout at wrong time.");
3219 static void service_cgroup_notify_event(Unit
*u
) {
3220 Service
*s
= SERVICE(u
);
3224 log_debug_unit(u
->id
,
3225 "%s: cgroup is empty", u
->id
);
3229 /* Waiting for SIGCHLD is usually more interesting,
3230 * because it includes return codes/signals. Which is
3231 * why we ignore the cgroup events for most cases,
3232 * except when we don't know pid which to expect the
3236 case SERVICE_START_POST
:
3237 /* If we were hoping for the daemon to write its PID file,
3238 * we can give up now. */
3239 if (s
->pid_file_pathspec
) {
3240 log_warning_unit(u
->id
,
3241 "%s never wrote its PID file. Failing.", UNIT(s
)->id
);
3242 service_unwatch_pid_file(s
);
3243 if (s
->state
== SERVICE_START
)
3244 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
3246 service_enter_stop(s
, SERVICE_FAILURE_RESOURCES
);
3250 case SERVICE_RUNNING
:
3251 /* service_enter_running() will figure out what to do */
3252 service_enter_running(s
, SERVICE_SUCCESS
);
3255 case SERVICE_STOP_SIGTERM
:
3256 case SERVICE_STOP_SIGKILL
:
3258 if (main_pid_good(s
) <= 0 && !control_pid_good(s
))
3259 service_enter_stop_post(s
, SERVICE_SUCCESS
);
3263 case SERVICE_FINAL_SIGTERM
:
3264 case SERVICE_FINAL_SIGKILL
:
3265 if (main_pid_good(s
) <= 0 && !control_pid_good(s
))
3266 service_enter_dead(s
, SERVICE_SUCCESS
, true);
3275 static void service_notify_message(Unit
*u
, pid_t pid
, char **tags
) {
3276 Service
*s
= SERVICE(u
);
3281 if (s
->notify_access
== NOTIFY_NONE
) {
3282 log_warning_unit(u
->id
,
3283 "%s: Got notification message from PID %lu, but reception is disabled.",
3284 u
->id
, (unsigned long) pid
);
3288 if (s
->notify_access
== NOTIFY_MAIN
&& pid
!= s
->main_pid
) {
3289 log_warning_unit(u
->id
,
3290 "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3291 u
->id
, (unsigned long) pid
, (unsigned long) s
->main_pid
);
3295 log_debug_unit(u
->id
,
3296 "%s: Got message", u
->id
);
3298 /* Interpret MAINPID= */
3299 if ((e
= strv_find_prefix(tags
, "MAINPID=")) &&
3300 (s
->state
== SERVICE_START
||
3301 s
->state
== SERVICE_START_POST
||
3302 s
->state
== SERVICE_RUNNING
||
3303 s
->state
== SERVICE_RELOAD
)) {
3305 if (parse_pid(e
+ 8, &pid
) < 0)
3306 log_warning_unit(u
->id
,
3307 "Failed to parse notification message %s", e
);
3309 log_debug_unit(u
->id
,
3310 "%s: got %s", u
->id
, e
);
3311 service_set_main_pid(s
, pid
);
3315 /* Interpret READY= */
3316 if (s
->type
== SERVICE_NOTIFY
&&
3317 s
->state
== SERVICE_START
&&
3318 strv_find(tags
, "READY=1")) {
3319 log_debug_unit(u
->id
,
3320 "%s: got READY=1", u
->id
);
3322 service_enter_start_post(s
);
3325 /* Interpret STATUS= */
3326 e
= strv_find_prefix(tags
, "STATUS=");
3332 if (!utf8_is_valid(e
+7)) {
3333 log_warning_unit(u
->id
,
3334 "Status message in notification is not UTF-8 clean.");
3340 log_error_unit(u
->id
,
3341 "Failed to allocate string.");
3345 log_debug_unit(u
->id
,
3346 "%s: got %s", u
->id
, e
);
3348 free(s
->status_text
);
3351 free(s
->status_text
);
3352 s
->status_text
= NULL
;
3356 if (strv_find(tags
, "WATCHDOG=1")) {
3357 log_debug_unit(u
->id
,
3358 "%s: got WATCHDOG=1", u
->id
);
3359 if (dual_timestamp_is_set(&s
->watchdog_timestamp
))
3360 service_reset_watchdog(s
);
3363 /* Notify clients about changed status or main pid */
3364 unit_add_to_dbus_queue(u
);
3367 #ifdef HAVE_SYSV_COMPAT
3369 static int service_enumerate(Manager
*m
) {
3373 char *path
= NULL
, *fpath
= NULL
, *name
= NULL
;
3374 Set
*runlevel_services
[ELEMENTSOF(rcnd_table
)], *shutdown_services
= NULL
;
3381 if (m
->running_as
!= SYSTEMD_SYSTEM
)
3384 zero(runlevel_services
);
3386 STRV_FOREACH(p
, m
->lookup_paths
.sysvrcnd_path
)
3387 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++) {
3391 path
= strjoin(*p
, "/", rcnd_table
[i
].path
, NULL
);
3400 if (!(d
= opendir(path
))) {
3401 if (errno
!= ENOENT
)
3402 log_warning("opendir() failed on %s: %s", path
, strerror(errno
));
3407 while ((de
= readdir(d
))) {
3410 if (ignore_file(de
->d_name
))
3413 if (de
->d_name
[0] != 'S' && de
->d_name
[0] != 'K')
3416 if (strlen(de
->d_name
) < 4)
3419 a
= undecchar(de
->d_name
[1]);
3420 b
= undecchar(de
->d_name
[2]);
3426 fpath
= strjoin(path
, "/", de
->d_name
, NULL
);
3432 if (access(fpath
, X_OK
) < 0) {
3434 if (errno
!= ENOENT
)
3435 log_warning("access() failed on %s: %s", fpath
, strerror(errno
));
3441 if (!(name
= sysv_translate_name(de
->d_name
+ 3))) {
3446 r
= manager_load_unit_prepare(m
, name
, NULL
, NULL
, &service
);
3448 log_warning("Failed to prepare unit %s: %s", name
, strerror(-r
));
3452 if (de
->d_name
[0] == 'S') {
3454 if (rcnd_table
[i
].type
== RUNLEVEL_UP
) {
3455 SERVICE(service
)->sysv_start_priority_from_rcnd
=
3456 MAX(a
*10 + b
, SERVICE(service
)->sysv_start_priority_from_rcnd
);
3458 SERVICE(service
)->sysv_enabled
= true;
3461 if ((r
= set_ensure_allocated(&runlevel_services
[i
], trivial_hash_func
, trivial_compare_func
)) < 0)
3464 if ((r
= set_put(runlevel_services
[i
], service
)) < 0)
3467 } else if (de
->d_name
[0] == 'K' &&
3468 (rcnd_table
[i
].type
== RUNLEVEL_DOWN
)) {
3470 if ((r
= set_ensure_allocated(&shutdown_services
, trivial_hash_func
, trivial_compare_func
)) < 0)
3473 if ((r
= set_put(shutdown_services
, service
)) < 0)
3479 /* Now we loaded all stubs and are aware of the lowest
3480 start-up priority for all services, not let's actually load
3481 the services, this will also tell us which services are
3482 actually native now */
3483 manager_dispatch_load_queue(m
);
3485 /* If this is a native service, rely on native ways to pull in
3486 * a service, don't pull it in via sysv rcN.d links. */
3487 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++)
3488 SET_FOREACH(service
, runlevel_services
[i
], j
) {
3489 service
= unit_follow_merge(service
);
3491 if (service
->fragment_path
)
3494 if ((r
= unit_add_two_dependencies_by_name_inverse(service
, UNIT_AFTER
, UNIT_WANTS
, rcnd_table
[i
].target
, NULL
, true)) < 0)
3498 /* We honour K links only for halt/reboot. For the normal
3499 * runlevels we assume the stop jobs will be implicitly added
3500 * by the core logic. Also, we don't really distinguish here
3501 * between the runlevels 0 and 6 and just add them to the
3502 * special shutdown target. */
3503 SET_FOREACH(service
, shutdown_services
, j
) {
3504 service
= unit_follow_merge(service
);
3506 if (service
->fragment_path
)
3509 if ((r
= unit_add_two_dependencies_by_name(service
, UNIT_BEFORE
, UNIT_CONFLICTS
, SPECIAL_SHUTDOWN_TARGET
, NULL
, true)) < 0)
3520 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++)
3521 set_free(runlevel_services
[i
]);
3522 set_free(shutdown_services
);
3531 static void service_bus_name_owner_change(
3534 const char *old_owner
,
3535 const char *new_owner
) {
3537 Service
*s
= SERVICE(u
);
3542 assert(streq(s
->bus_name
, name
));
3543 assert(old_owner
|| new_owner
);
3545 if (old_owner
&& new_owner
)
3546 log_debug_unit(u
->id
,
3547 "%s's D-Bus name %s changed owner from %s to %s",
3548 u
->id
, name
, old_owner
, new_owner
);
3550 log_debug_unit(u
->id
,
3551 "%s's D-Bus name %s no longer registered by %s",
3552 u
->id
, name
, old_owner
);
3554 log_debug_unit(u
->id
,
3555 "%s's D-Bus name %s now registered by %s",
3556 u
->id
, name
, new_owner
);
3558 s
->bus_name_good
= !!new_owner
;
3560 if (s
->type
== SERVICE_DBUS
) {
3562 /* service_enter_running() will figure out what to
3564 if (s
->state
== SERVICE_RUNNING
)
3565 service_enter_running(s
, SERVICE_SUCCESS
);
3566 else if (s
->state
== SERVICE_START
&& new_owner
)
3567 service_enter_start_post(s
);
3569 } else if (new_owner
&&
3571 (s
->state
== SERVICE_START
||
3572 s
->state
== SERVICE_START_POST
||
3573 s
->state
== SERVICE_RUNNING
||
3574 s
->state
== SERVICE_RELOAD
)) {
3576 /* Try to acquire PID from bus service */
3577 log_debug_unit(u
->id
,
3578 "Trying to acquire PID from D-Bus name...");
3580 bus_query_pid(u
->manager
, name
);
3584 static void service_bus_query_pid_done(
3589 Service
*s
= SERVICE(u
);
3594 log_debug_unit(u
->id
,
3595 "%s's D-Bus name %s is now owned by process %u",
3596 u
->id
, name
, (unsigned) pid
);
3598 if (s
->main_pid
<= 0 &&
3599 (s
->state
== SERVICE_START
||
3600 s
->state
== SERVICE_START_POST
||
3601 s
->state
== SERVICE_RUNNING
||
3602 s
->state
== SERVICE_RELOAD
))
3603 service_set_main_pid(s
, pid
);
3606 int service_set_socket_fd(Service
*s
, int fd
, Socket
*sock
) {
3611 /* This is called by the socket code when instantiating a new
3612 * service for a stream socket and the socket needs to be
3615 if (UNIT(s
)->load_state
!= UNIT_LOADED
)
3618 if (s
->socket_fd
>= 0)
3621 if (s
->state
!= SERVICE_DEAD
)
3625 s
->got_socket_fd
= true;
3627 unit_ref_set(&s
->accept_socket
, UNIT(sock
));
3629 return unit_add_two_dependencies(UNIT(sock
), UNIT_BEFORE
, UNIT_TRIGGERS
, UNIT(s
), false);
3632 static void service_reset_failed(Unit
*u
) {
3633 Service
*s
= SERVICE(u
);
3637 if (s
->state
== SERVICE_FAILED
)
3638 service_set_state(s
, SERVICE_DEAD
);
3640 s
->result
= SERVICE_SUCCESS
;
3641 s
->reload_result
= SERVICE_SUCCESS
;
3643 RATELIMIT_RESET(s
->start_limit
);
3646 static int service_kill(Unit
*u
, KillWho who
, int signo
, DBusError
*error
) {
3647 Service
*s
= SERVICE(u
);
3649 Set
*pid_set
= NULL
;
3653 if (s
->main_pid
<= 0 && who
== KILL_MAIN
) {
3654 dbus_set_error(error
, BUS_ERROR_NO_SUCH_PROCESS
, "No main process to kill");
3658 if (s
->control_pid
<= 0 && who
== KILL_CONTROL
) {
3659 dbus_set_error(error
, BUS_ERROR_NO_SUCH_PROCESS
, "No control process to kill");
3663 if (who
== KILL_CONTROL
|| who
== KILL_ALL
)
3664 if (s
->control_pid
> 0)
3665 if (kill(s
->control_pid
, signo
) < 0)
3668 if (who
== KILL_MAIN
|| who
== KILL_ALL
)
3669 if (s
->main_pid
> 0)
3670 if (kill(s
->main_pid
, signo
) < 0)
3673 if (who
== KILL_ALL
) {
3676 pid_set
= set_new(trivial_hash_func
, trivial_compare_func
);
3680 /* Exclude the control/main pid from being killed via the cgroup */
3681 if (s
->control_pid
> 0) {
3682 q
= set_put(pid_set
, LONG_TO_PTR(s
->control_pid
));
3689 if (s
->main_pid
> 0) {
3690 q
= set_put(pid_set
, LONG_TO_PTR(s
->main_pid
));
3697 q
= cgroup_bonding_kill_list(UNIT(s
)->cgroup_bondings
, signo
, false, false, pid_set
, NULL
);
3698 if (q
< 0 && q
!= -EAGAIN
&& q
!= -ESRCH
&& q
!= -ENOENT
)
3709 static const char* const service_state_table
[_SERVICE_STATE_MAX
] = {
3710 [SERVICE_DEAD
] = "dead",
3711 [SERVICE_START_PRE
] = "start-pre",
3712 [SERVICE_START
] = "start",
3713 [SERVICE_START_POST
] = "start-post",
3714 [SERVICE_RUNNING
] = "running",
3715 [SERVICE_EXITED
] = "exited",
3716 [SERVICE_RELOAD
] = "reload",
3717 [SERVICE_STOP
] = "stop",
3718 [SERVICE_STOP_SIGTERM
] = "stop-sigterm",
3719 [SERVICE_STOP_SIGKILL
] = "stop-sigkill",
3720 [SERVICE_STOP_POST
] = "stop-post",
3721 [SERVICE_FINAL_SIGTERM
] = "final-sigterm",
3722 [SERVICE_FINAL_SIGKILL
] = "final-sigkill",
3723 [SERVICE_FAILED
] = "failed",
3724 [SERVICE_AUTO_RESTART
] = "auto-restart",
3727 DEFINE_STRING_TABLE_LOOKUP(service_state
, ServiceState
);
3729 static const char* const service_restart_table
[_SERVICE_RESTART_MAX
] = {
3730 [SERVICE_RESTART_NO
] = "no",
3731 [SERVICE_RESTART_ON_SUCCESS
] = "on-success",
3732 [SERVICE_RESTART_ON_FAILURE
] = "on-failure",
3733 [SERVICE_RESTART_ON_ABORT
] = "on-abort",
3734 [SERVICE_RESTART_ALWAYS
] = "always"
3737 DEFINE_STRING_TABLE_LOOKUP(service_restart
, ServiceRestart
);
3739 static const char* const service_type_table
[_SERVICE_TYPE_MAX
] = {
3740 [SERVICE_SIMPLE
] = "simple",
3741 [SERVICE_FORKING
] = "forking",
3742 [SERVICE_ONESHOT
] = "oneshot",
3743 [SERVICE_DBUS
] = "dbus",
3744 [SERVICE_NOTIFY
] = "notify",
3745 [SERVICE_IDLE
] = "idle"
3748 DEFINE_STRING_TABLE_LOOKUP(service_type
, ServiceType
);
3750 static const char* const service_exec_command_table
[_SERVICE_EXEC_COMMAND_MAX
] = {
3751 [SERVICE_EXEC_START_PRE
] = "ExecStartPre",
3752 [SERVICE_EXEC_START
] = "ExecStart",
3753 [SERVICE_EXEC_START_POST
] = "ExecStartPost",
3754 [SERVICE_EXEC_RELOAD
] = "ExecReload",
3755 [SERVICE_EXEC_STOP
] = "ExecStop",
3756 [SERVICE_EXEC_STOP_POST
] = "ExecStopPost",
3759 DEFINE_STRING_TABLE_LOOKUP(service_exec_command
, ServiceExecCommand
);
3761 static const char* const notify_access_table
[_NOTIFY_ACCESS_MAX
] = {
3762 [NOTIFY_NONE
] = "none",
3763 [NOTIFY_MAIN
] = "main",
3764 [NOTIFY_ALL
] = "all"
3767 DEFINE_STRING_TABLE_LOOKUP(notify_access
, NotifyAccess
);
3769 static const char* const service_result_table
[_SERVICE_RESULT_MAX
] = {
3770 [SERVICE_SUCCESS
] = "success",
3771 [SERVICE_FAILURE_RESOURCES
] = "resources",
3772 [SERVICE_FAILURE_TIMEOUT
] = "timeout",
3773 [SERVICE_FAILURE_EXIT_CODE
] = "exit-code",
3774 [SERVICE_FAILURE_SIGNAL
] = "signal",
3775 [SERVICE_FAILURE_CORE_DUMP
] = "core-dump",
3776 [SERVICE_FAILURE_WATCHDOG
] = "watchdog",
3777 [SERVICE_FAILURE_START_LIMIT
] = "start-limit"
3780 DEFINE_STRING_TABLE_LOOKUP(service_result
, ServiceResult
);
3782 static const char* const start_limit_action_table
[_SERVICE_START_LIMIT_MAX
] = {
3783 [SERVICE_START_LIMIT_NONE
] = "none",
3784 [SERVICE_START_LIMIT_REBOOT
] = "reboot",
3785 [SERVICE_START_LIMIT_REBOOT_FORCE
] = "reboot-force",
3786 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE
] = "reboot-immediate"
3788 DEFINE_STRING_TABLE_LOOKUP(start_limit_action
, StartLimitAction
);
3790 const UnitVTable service_vtable
= {
3791 .object_size
= sizeof(Service
),
3798 .exec_context_offset
= offsetof(Service
, exec_context
),
3799 .exec_section
= "Service",
3801 .init
= service_init
,
3802 .done
= service_done
,
3803 .load
= service_load
,
3805 .coldplug
= service_coldplug
,
3807 .dump
= service_dump
,
3809 .start
= service_start
,
3810 .stop
= service_stop
,
3811 .reload
= service_reload
,
3813 .can_reload
= service_can_reload
,
3815 .kill
= service_kill
,
3817 .serialize
= service_serialize
,
3818 .deserialize_item
= service_deserialize_item
,
3820 .active_state
= service_active_state
,
3821 .sub_state_to_string
= service_sub_state_to_string
,
3823 .check_gc
= service_check_gc
,
3824 .check_snapshot
= service_check_snapshot
,
3826 .sigchld_event
= service_sigchld_event
,
3827 .timer_event
= service_timer_event
,
3828 .fd_event
= service_fd_event
,
3830 .reset_failed
= service_reset_failed
,
3832 .cgroup_notify_empty
= service_cgroup_notify_event
,
3833 .notify_message
= service_notify_message
,
3835 .bus_name_owner_change
= service_bus_name_owner_change
,
3836 .bus_query_pid_done
= service_bus_query_pid_done
,
3838 .bus_interface
= "org.freedesktop.systemd1.Service",
3839 .bus_message_handler
= bus_service_message_handler
,
3840 .bus_invalidating_properties
= bus_service_invalidating_properties
,
3842 #ifdef HAVE_SYSV_COMPAT
3843 .enumerate
= service_enumerate
,
3845 .status_message_formats
= {
3846 .starting_stopping
= {
3847 [0] = "Starting %s...",
3848 [1] = "Stopping %s...",
3850 .finished_start_job
= {
3851 [JOB_DONE
] = "Started %s.",
3852 [JOB_FAILED
] = "Failed to start %s.",
3853 [JOB_DEPENDENCY
] = "Dependency failed for %s.",
3854 [JOB_TIMEOUT
] = "Timed out starting %s.",
3856 .finished_stop_job
= {
3857 [JOB_DONE
] = "Stopped %s.",
3858 [JOB_FAILED
] = "Stopped (with error) %s.",
3859 [JOB_TIMEOUT
] = "Timed out stopping %s.",