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 "dbus-service.h"
38 #include "bus-errors.h"
39 #include "exit-status.h"
41 #include "path-util.h"
45 #ifdef HAVE_SYSV_COMPAT
47 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
49 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
},
68 /* SUSE style boot.d */
69 { "boot.d", SPECIAL_SYSINIT_TARGET
, RUNLEVEL_SYSINIT
},
72 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
73 /* Debian style rcS.d */
74 { "rcS.d", SPECIAL_SYSINIT_TARGET
, RUNLEVEL_SYSINIT
},
77 /* Standard SysV runlevels for shutdown */
78 { "rc0.d", SPECIAL_POWEROFF_TARGET
, RUNLEVEL_DOWN
},
79 { "rc6.d", SPECIAL_REBOOT_TARGET
, RUNLEVEL_DOWN
}
81 /* Note that the order here matters, as we read the
82 directories in this order, and we want to make sure that
83 sysv_start_priority is known when we first load the
84 unit. And that value we only know from S links. Hence
85 UP/SYSINIT must be read before DOWN */
88 #define RUNLEVELS_UP "12345"
89 /* #define RUNLEVELS_DOWN "06" */
90 #define RUNLEVELS_BOOT "bBsS"
93 static const UnitActiveState state_translation_table
[_SERVICE_STATE_MAX
] = {
94 [SERVICE_DEAD
] = UNIT_INACTIVE
,
95 [SERVICE_START_PRE
] = UNIT_ACTIVATING
,
96 [SERVICE_START
] = UNIT_ACTIVATING
,
97 [SERVICE_START_POST
] = UNIT_ACTIVATING
,
98 [SERVICE_RUNNING
] = UNIT_ACTIVE
,
99 [SERVICE_EXITED
] = UNIT_ACTIVE
,
100 [SERVICE_RELOAD
] = UNIT_RELOADING
,
101 [SERVICE_STOP
] = UNIT_DEACTIVATING
,
102 [SERVICE_STOP_SIGTERM
] = UNIT_DEACTIVATING
,
103 [SERVICE_STOP_SIGKILL
] = UNIT_DEACTIVATING
,
104 [SERVICE_STOP_POST
] = UNIT_DEACTIVATING
,
105 [SERVICE_FINAL_SIGTERM
] = UNIT_DEACTIVATING
,
106 [SERVICE_FINAL_SIGKILL
] = UNIT_DEACTIVATING
,
107 [SERVICE_FAILED
] = UNIT_FAILED
,
108 [SERVICE_AUTO_RESTART
] = UNIT_ACTIVATING
111 /* For Type=idle we never want to delay any other jobs, hence we
112 * consider idle jobs active as soon as we start working on them */
113 static const UnitActiveState state_translation_table_idle
[_SERVICE_STATE_MAX
] = {
114 [SERVICE_DEAD
] = UNIT_INACTIVE
,
115 [SERVICE_START_PRE
] = UNIT_ACTIVE
,
116 [SERVICE_START
] = UNIT_ACTIVE
,
117 [SERVICE_START_POST
] = UNIT_ACTIVE
,
118 [SERVICE_RUNNING
] = UNIT_ACTIVE
,
119 [SERVICE_EXITED
] = UNIT_ACTIVE
,
120 [SERVICE_RELOAD
] = UNIT_RELOADING
,
121 [SERVICE_STOP
] = UNIT_DEACTIVATING
,
122 [SERVICE_STOP_SIGTERM
] = UNIT_DEACTIVATING
,
123 [SERVICE_STOP_SIGKILL
] = UNIT_DEACTIVATING
,
124 [SERVICE_STOP_POST
] = UNIT_DEACTIVATING
,
125 [SERVICE_FINAL_SIGTERM
] = UNIT_DEACTIVATING
,
126 [SERVICE_FINAL_SIGKILL
] = UNIT_DEACTIVATING
,
127 [SERVICE_FAILED
] = UNIT_FAILED
,
128 [SERVICE_AUTO_RESTART
] = UNIT_ACTIVATING
131 static void service_init(Unit
*u
) {
132 Service
*s
= SERVICE(u
);
136 assert(u
->load_state
== UNIT_STUB
);
138 s
->timeout_usec
= DEFAULT_TIMEOUT_USEC
;
139 s
->restart_usec
= DEFAULT_RESTART_USEC
;
140 s
->type
= _SERVICE_TYPE_INVALID
;
142 s
->watchdog_watch
.type
= WATCH_INVALID
;
144 s
->timer_watch
.type
= WATCH_INVALID
;
145 #ifdef HAVE_SYSV_COMPAT
146 s
->sysv_start_priority
= -1;
147 s
->sysv_start_priority_from_rcnd
= -1;
150 s
->guess_main_pid
= true;
152 exec_context_init(&s
->exec_context
);
153 for (i
= 0; i
< RLIMIT_NLIMITS
; i
++)
154 if (UNIT(s
)->manager
->rlimit
[i
])
155 s
->exec_context
.rlimit
[i
] = newdup(struct rlimit
, UNIT(s
)->manager
->rlimit
[i
], 1);
157 RATELIMIT_INIT(s
->start_limit
, 10*USEC_PER_SEC
, 5);
159 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
162 static void service_unwatch_control_pid(Service
*s
) {
165 if (s
->control_pid
<= 0)
168 unit_unwatch_pid(UNIT(s
), s
->control_pid
);
172 static void service_unwatch_main_pid(Service
*s
) {
175 if (s
->main_pid
<= 0)
178 unit_unwatch_pid(UNIT(s
), s
->main_pid
);
182 static void service_unwatch_pid_file(Service
*s
) {
183 if (!s
->pid_file_pathspec
)
186 log_debug("Stopping watch for %s's PID file %s", UNIT(s
)->id
, s
->pid_file_pathspec
->path
);
187 path_spec_unwatch(s
->pid_file_pathspec
, UNIT(s
));
188 path_spec_done(s
->pid_file_pathspec
);
189 free(s
->pid_file_pathspec
);
190 s
->pid_file_pathspec
= NULL
;
193 static int service_set_main_pid(Service
*s
, pid_t pid
) {
205 s
->main_pid_known
= true;
207 if (get_parent_of_pid(pid
, &ppid
) >= 0 && ppid
!= getpid()) {
208 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
209 UNIT(s
)->id
, (unsigned long) pid
);
211 s
->main_pid_alien
= true;
213 s
->main_pid_alien
= false;
215 exec_status_start(&s
->main_exec_status
, pid
);
220 static void service_close_socket_fd(Service
*s
) {
223 if (s
->socket_fd
< 0)
226 close_nointr_nofail(s
->socket_fd
);
230 static void service_connection_unref(Service
*s
) {
233 if (!UNIT_DEREF(s
->accept_socket
))
236 socket_connection_unref(SOCKET(UNIT_DEREF(s
->accept_socket
)));
237 unit_ref_unset(&s
->accept_socket
);
240 static void service_stop_watchdog(Service
*s
) {
243 unit_unwatch_timer(UNIT(s
), &s
->watchdog_watch
);
244 s
->watchdog_timestamp
.realtime
= 0;
245 s
->watchdog_timestamp
.monotonic
= 0;
248 static void service_enter_dead(Service
*s
, ServiceResult f
, bool allow_restart
);
250 static void service_handle_watchdog(Service
*s
) {
256 if (s
->watchdog_usec
== 0)
259 offset
= now(CLOCK_MONOTONIC
) - s
->watchdog_timestamp
.monotonic
;
260 if (offset
>= s
->watchdog_usec
) {
261 log_error("%s watchdog timeout!", UNIT(s
)->id
);
262 service_enter_dead(s
, SERVICE_FAILURE_WATCHDOG
, true);
266 r
= unit_watch_timer(UNIT(s
), s
->watchdog_usec
- offset
, &s
->watchdog_watch
);
268 log_warning("%s failed to install watchdog timer: %s", UNIT(s
)->id
, strerror(-r
));
271 static void service_reset_watchdog(Service
*s
) {
274 dual_timestamp_get(&s
->watchdog_timestamp
);
275 service_handle_watchdog(s
);
278 static void service_done(Unit
*u
) {
279 Service
*s
= SERVICE(u
);
286 #ifdef HAVE_SYSV_COMPAT
287 free(s
->sysv_runlevels
);
288 s
->sysv_runlevels
= NULL
;
291 free(s
->status_text
);
292 s
->status_text
= NULL
;
294 exec_context_done(&s
->exec_context
);
295 exec_command_free_array(s
->exec_command
, _SERVICE_EXEC_COMMAND_MAX
);
296 s
->control_command
= NULL
;
297 s
->main_command
= 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 if (!(r
= new(char, strlen(name
) + sizeof(".service"))))
328 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
329 if (endswith(name
, ".sh"))
330 /* Drop Debian-style .sh suffix */
331 strcpy(stpcpy(r
, name
) - 3, ".service");
334 if (startswith(name
, "boot."))
335 /* Drop SuSE-style boot. prefix */
336 strcpy(stpcpy(r
, name
+ 5), ".service");
338 #ifdef TARGET_FRUGALWARE
339 if (startswith(name
, "rc."))
340 /* Drop Frugalware-style rc. prefix */
341 strcpy(stpcpy(r
, name
+ 3), ".service");
344 /* Normal init scripts */
345 strcpy(stpcpy(r
, name
), ".service");
350 static int sysv_translate_facility(const char *name
, const char *filename
, char **_r
) {
352 /* We silently ignore the $ prefix here. According to the LSB
353 * spec it simply indicates whether something is a
354 * standardized name or a distribution-specific one. Since we
355 * just follow what already exists and do not introduce new
356 * uses or names we don't care who introduced a new name. */
358 static const char * const table
[] = {
359 /* LSB defined facilities */
360 "local_fs", SPECIAL_LOCAL_FS_TARGET
,
361 #if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
363 /* Due to unfortunate name selection in Mandriva,
364 * $network is provided by network-up which is ordered
365 * after network which actually starts interfaces.
366 * To break the loop, just ignore it */
367 "network", SPECIAL_NETWORK_TARGET
,
369 "named", SPECIAL_NSS_LOOKUP_TARGET
,
370 "portmap", SPECIAL_RPCBIND_TARGET
,
371 "remote_fs", SPECIAL_REMOTE_FS_TARGET
,
372 "syslog", SPECIAL_SYSLOG_TARGET
,
373 "time", SPECIAL_TIME_SYNC_TARGET
,
375 /* common extensions */
376 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
377 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE
,
380 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
381 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
385 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
386 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
387 "httpd", SPECIAL_HTTP_DAEMON_TARGET
,
391 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
402 n
= *name
== '$' ? name
+ 1 : name
;
404 for (i
= 0; i
< ELEMENTSOF(table
); i
+= 2) {
406 if (!streq(table
[i
], n
))
412 if (!(r
= strdup(table
[i
+1])))
418 /* If we don't know this name, fallback heuristics to figure
419 * out whether something is a target or a service alias. */
422 if (!unit_prefix_is_valid(n
))
425 /* Facilities starting with $ are most likely targets */
426 r
= unit_name_build(n
, NULL
, ".target");
427 } else if (filename
&& streq(name
, filename
))
428 /* Names equaling the file name of the services are redundant */
431 /* Everything else we assume to be normal service names */
432 r
= sysv_translate_name(n
);
443 static int sysv_fix_order(Service
*s
) {
449 if (s
->sysv_start_priority
< 0)
452 /* For each pair of services where at least one lacks a LSB
453 * header, we use the start priority value to order things. */
455 LIST_FOREACH(units_by_type
, other
, UNIT(s
)->manager
->units_by_type
[UNIT_SERVICE
]) {
458 bool special_s
, special_t
;
465 if (UNIT(t
)->load_state
!= UNIT_LOADED
)
468 if (t
->sysv_start_priority
< 0)
471 /* If both units have modern headers we don't care
472 * about the priorities */
473 if ((UNIT(s
)->fragment_path
|| s
->sysv_has_lsb
) &&
474 (UNIT(t
)->fragment_path
|| t
->sysv_has_lsb
))
477 special_s
= s
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, s
->sysv_runlevels
);
478 special_t
= t
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, t
->sysv_runlevels
);
480 if (special_t
&& !special_s
)
482 else if (special_s
&& !special_t
)
484 else if (t
->sysv_start_priority
< s
->sysv_start_priority
)
486 else if (t
->sysv_start_priority
> s
->sysv_start_priority
)
491 /* FIXME: Maybe we should compare the name here lexicographically? */
493 if ((r
= unit_add_dependency(UNIT(s
), d
, UNIT(t
), true)) < 0)
500 static ExecCommand
*exec_command_new(const char *path
, const char *arg1
) {
503 if (!(c
= new0(ExecCommand
, 1)))
506 if (!(c
->path
= strdup(path
))) {
511 if (!(c
->argv
= strv_new(path
, arg1
, NULL
))) {
520 static int sysv_exec_commands(Service
*s
) {
525 assert(UNIT(s
)->source_path
);
527 c
= exec_command_new(UNIT(s
)->source_path
, "start");
530 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_START
, c
);
532 c
= exec_command_new(UNIT(s
)->source_path
, "stop");
535 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_STOP
, c
);
537 c
= exec_command_new(UNIT(s
)->source_path
, "reload");
540 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_RELOAD
, c
);
545 static int service_load_sysv_path(Service
*s
, const char *path
) {
556 char *short_description
= NULL
, *long_description
= NULL
, *chkconfig_description
= NULL
, *description
;
564 f
= fopen(path
, "re");
566 r
= errno
== ENOENT
? 0 : -errno
;
571 if (fstat(fileno(f
), &st
) < 0) {
576 free(u
->source_path
);
577 u
->source_path
= strdup(path
);
578 if (!u
->source_path
) {
582 u
->source_mtime
= timespec_load(&st
.st_mtim
);
584 if (null_or_empty(&st
)) {
585 u
->load_state
= UNIT_MASKED
;
593 char l
[LINE_MAX
], *t
;
595 if (!fgets(l
, sizeof(l
), f
)) {
600 log_error("Failed to read configuration file '%s': %s", path
, strerror(-r
));
610 if (state
== NORMAL
&& streq(t
, "### BEGIN INIT INFO")) {
612 s
->sysv_has_lsb
= true;
616 if ((state
== LSB_DESCRIPTION
|| state
== LSB
) && streq(t
, "### END INIT INFO")) {
622 t
+= strspn(t
, WHITESPACE
);
624 if (state
== NORMAL
) {
626 /* Try to parse Red Hat style chkconfig headers */
628 if (startswith_no_case(t
, "chkconfig:")) {
630 char runlevels
[16], *k
;
634 if (sscanf(t
+10, "%15s %i %*i",
636 &start_priority
) != 2) {
638 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path
, line
);
642 /* A start priority gathered from the
643 * symlink farms is preferred over the
644 * data from the LSB header. */
645 if (start_priority
< 0 || start_priority
> 99)
646 log_warning("[%s:%u] Start priority out of range. Ignoring.", path
, line
);
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("[%s:%u] PID file not absolute. Ignoring.", path
, line
);
699 if (!(fn
= strdup(fn
))) {
708 } else if (state
== DESCRIPTION
) {
710 /* Try to parse Red Hat style description
713 size_t k
= strlen(t
);
721 if ((j
= strstrip(t
)) && *j
) {
724 if (chkconfig_description
)
725 d
= join(chkconfig_description
, " ", j
, NULL
);
734 free(chkconfig_description
);
735 chkconfig_description
= d
;
738 } else if (state
== LSB
|| state
== LSB_DESCRIPTION
) {
740 if (startswith_no_case(t
, "Provides:")) {
746 FOREACH_WORD_QUOTED(w
, z
, t
+9, i
) {
749 if (!(n
= strndup(w
, z
))) {
754 r
= sysv_translate_facility(n
, path_get_file_name(path
), &m
);
763 if (unit_name_to_type(m
) == UNIT_SERVICE
)
764 r
= unit_add_name(u
, m
);
771 * indication that the
773 * now available. This
776 * targets do NOT pull
779 r
= unit_add_two_dependencies_by_name(u
, UNIT_BEFORE
, UNIT_WANTS
, m
, NULL
, true);
782 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path
, line
, m
, strerror(-r
));
787 } else if (startswith_no_case(t
, "Required-Start:") ||
788 startswith_no_case(t
, "Should-Start:") ||
789 startswith_no_case(t
, "X-Start-Before:") ||
790 startswith_no_case(t
, "X-Start-After:")) {
796 FOREACH_WORD_QUOTED(w
, z
, strchr(t
, ':')+1, i
) {
799 if (!(n
= strndup(w
, z
))) {
804 r
= sysv_translate_facility(n
, path_get_file_name(path
), &m
);
807 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path
, line
, n
, strerror(-r
));
817 r
= unit_add_dependency_by_name(u
, startswith_no_case(t
, "X-Start-Before:") ? UNIT_BEFORE
: UNIT_AFTER
, m
, NULL
, true);
820 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path
, line
, m
, strerror(-r
));
824 } else if (startswith_no_case(t
, "Default-Start:")) {
829 k
= delete_chars(t
+14, WHITESPACE
"-");
832 if (!(d
= strdup(k
))) {
837 free(s
->sysv_runlevels
);
838 s
->sysv_runlevels
= d
;
841 } else if (startswith_no_case(t
, "Description:")) {
844 state
= LSB_DESCRIPTION
;
846 if ((j
= strstrip(t
+12)) && *j
) {
847 if (!(d
= strdup(j
))) {
854 free(long_description
);
855 long_description
= d
;
857 } else if (startswith_no_case(t
, "Short-Description:")) {
862 if ((j
= strstrip(t
+18)) && *j
) {
863 if (!(d
= strdup(j
))) {
870 free(short_description
);
871 short_description
= d
;
873 } else if (state
== LSB_DESCRIPTION
) {
875 if (startswith(l
, "#\t") || startswith(l
, "# ")) {
878 if ((j
= strstrip(t
)) && *j
) {
881 if (long_description
)
882 d
= join(long_description
, " ", t
, NULL
);
891 free(long_description
);
892 long_description
= d
;
901 if ((r
= sysv_exec_commands(s
)) < 0)
903 if (s
->sysv_runlevels
&&
904 chars_intersect(RUNLEVELS_BOOT
, s
->sysv_runlevels
) &&
905 chars_intersect(RUNLEVELS_UP
, s
->sysv_runlevels
)) {
906 /* Service has both boot and "up" runlevels
907 configured. Kill the "up" ones. */
908 delete_chars(s
->sysv_runlevels
, RUNLEVELS_UP
);
911 if (s
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, s
->sysv_runlevels
)) {
912 /* If there a runlevels configured for this service
913 * but none of the standard ones, then we assume this
914 * is some special kind of service (which might be
915 * needed for early boot) and don't create any links
918 UNIT(s
)->default_dependencies
= false;
920 /* Don't timeout special services during boot (like fsck) */
923 s
->timeout_usec
= DEFAULT_SYSV_TIMEOUT_USEC
;
925 /* Special setting for all SysV services */
926 s
->type
= SERVICE_FORKING
;
927 s
->remain_after_exit
= !s
->pid_file
;
928 s
->guess_main_pid
= false;
929 s
->restart
= SERVICE_RESTART_NO
;
930 s
->exec_context
.ignore_sigpipe
= false;
931 s
->exec_context
.kill_mode
= KILL_PROCESS
;
933 /* We use the long description only if
934 * no short description is set. */
936 if (short_description
)
937 description
= short_description
;
938 else if (chkconfig_description
)
939 description
= chkconfig_description
;
940 else if (long_description
)
941 description
= long_description
;
948 if (!(d
= strappend(s
->sysv_has_lsb
? "LSB: " : "SYSV: ", description
))) {
956 /* The priority that has been set in /etc/rcN.d/ hierarchies
957 * takes precedence over what is stored as default in the LSB
959 if (s
->sysv_start_priority_from_rcnd
>= 0)
960 s
->sysv_start_priority
= s
->sysv_start_priority_from_rcnd
;
962 u
->load_state
= UNIT_LOADED
;
970 free(short_description
);
971 free(long_description
);
972 free(chkconfig_description
);
977 static int service_load_sysv_name(Service
*s
, const char *name
) {
983 /* For SysV services we strip the boot.*, rc.* and *.sh
984 * prefixes/suffixes. */
985 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
986 if (endswith(name
, ".sh.service"))
991 if (startswith(name
, "boot."))
995 #ifdef TARGET_FRUGALWARE
996 if (startswith(name
, "rc."))
1000 STRV_FOREACH(p
, UNIT(s
)->manager
->lookup_paths
.sysvinit_path
) {
1004 path
= join(*p
, "/", name
, NULL
);
1008 assert(endswith(path
, ".service"));
1009 path
[strlen(path
)-8] = 0;
1011 r
= service_load_sysv_path(s
, path
);
1013 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
1014 if (r
>= 0 && UNIT(s
)->load_state
== UNIT_STUB
) {
1015 /* Try Debian style *.sh source'able init scripts */
1016 strcat(path
, ".sh");
1017 r
= service_load_sysv_path(s
, path
);
1023 if (r
>= 0 && UNIT(s
)->load_state
== UNIT_STUB
) {
1024 /* Try SUSE style boot.* init scripts */
1026 path
= join(*p
, "/boot.", name
, NULL
);
1030 /* Drop .service suffix */
1031 path
[strlen(path
)-8] = 0;
1032 r
= service_load_sysv_path(s
, path
);
1037 #ifdef TARGET_FRUGALWARE
1038 if (r
>= 0 && UNIT(s
)->load_state
== UNIT_STUB
) {
1039 /* Try Frugalware style rc.* init scripts */
1041 path
= join(*p
, "/rc.", name
, NULL
);
1045 /* Drop .service suffix */
1046 path
[strlen(path
)-8] = 0;
1047 r
= service_load_sysv_path(s
, path
);
1055 if ((UNIT(s
)->load_state
!= UNIT_STUB
))
1062 static int service_load_sysv(Service
*s
) {
1069 /* Load service data from SysV init scripts, preferably with
1070 * LSB headers ... */
1072 if (strv_isempty(UNIT(s
)->manager
->lookup_paths
.sysvinit_path
))
1075 if ((t
= UNIT(s
)->id
))
1076 if ((r
= service_load_sysv_name(s
, t
)) < 0)
1079 if (UNIT(s
)->load_state
== UNIT_STUB
)
1080 SET_FOREACH(t
, UNIT(s
)->names
, i
) {
1081 if (t
== UNIT(s
)->id
)
1084 if ((r
= service_load_sysv_name(s
, t
)) < 0)
1087 if (UNIT(s
)->load_state
!= UNIT_STUB
)
1095 static int fsck_fix_order(Service
*s
) {
1101 if (s
->fsck_passno
<= 0)
1104 /* For each pair of services where both have an fsck priority
1105 * we order things based on it. */
1107 LIST_FOREACH(units_by_type
, other
, UNIT(s
)->manager
->units_by_type
[UNIT_SERVICE
]) {
1116 if (UNIT(t
)->load_state
!= UNIT_LOADED
)
1119 if (t
->fsck_passno
<= 0)
1122 if (t
->fsck_passno
< s
->fsck_passno
)
1124 else if (t
->fsck_passno
> s
->fsck_passno
)
1129 if ((r
= unit_add_dependency(UNIT(s
), d
, UNIT(t
), true)) < 0)
1136 static int service_verify(Service
*s
) {
1139 if (UNIT(s
)->load_state
!= UNIT_LOADED
)
1142 if (!s
->exec_command
[SERVICE_EXEC_START
]) {
1143 log_error("%s lacks ExecStart setting. Refusing.", UNIT(s
)->id
);
1147 if (s
->type
!= SERVICE_ONESHOT
&&
1148 s
->exec_command
[SERVICE_EXEC_START
]->command_next
) {
1149 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s
)->id
);
1153 if (s
->type
== SERVICE_ONESHOT
&&
1154 s
->exec_command
[SERVICE_EXEC_RELOAD
]) {
1155 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", UNIT(s
)->id
);
1159 if (s
->type
== SERVICE_DBUS
&& !s
->bus_name
) {
1160 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s
)->id
);
1164 if (s
->bus_name
&& s
->type
!= SERVICE_DBUS
)
1165 log_warning("%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s
)->id
);
1167 if (s
->exec_context
.pam_name
&& s
->exec_context
.kill_mode
!= KILL_CONTROL_GROUP
) {
1168 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s
)->id
);
1175 static int service_add_default_dependencies(Service
*s
) {
1180 /* Add a number of automatic dependencies useful for the
1181 * majority of services. */
1183 /* First, pull in base system */
1184 if (UNIT(s
)->manager
->running_as
== MANAGER_SYSTEM
) {
1186 if ((r
= unit_add_two_dependencies_by_name(UNIT(s
), UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_BASIC_TARGET
, NULL
, true)) < 0)
1189 } else if (UNIT(s
)->manager
->running_as
== MANAGER_USER
) {
1191 if ((r
= unit_add_two_dependencies_by_name(UNIT(s
), UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_SOCKETS_TARGET
, NULL
, true)) < 0)
1195 /* Second, activate normal shutdown */
1196 return unit_add_two_dependencies_by_name(UNIT(s
), UNIT_BEFORE
, UNIT_CONFLICTS
, SPECIAL_SHUTDOWN_TARGET
, NULL
, true);
1199 static void service_fix_output(Service
*s
) {
1202 /* If nothing has been explicitly configured, patch default
1203 * output in. If input is socket/tty we avoid this however,
1204 * since in that case we want output to default to the same
1205 * place as we read input from. */
1207 if (s
->exec_context
.std_error
== EXEC_OUTPUT_INHERIT
&&
1208 s
->exec_context
.std_output
== EXEC_OUTPUT_INHERIT
&&
1209 s
->exec_context
.std_input
== EXEC_INPUT_NULL
)
1210 s
->exec_context
.std_error
= UNIT(s
)->manager
->default_std_error
;
1212 if (s
->exec_context
.std_output
== EXEC_OUTPUT_INHERIT
&&
1213 s
->exec_context
.std_input
== EXEC_INPUT_NULL
)
1214 s
->exec_context
.std_output
= UNIT(s
)->manager
->default_std_output
;
1217 static int service_load(Unit
*u
) {
1219 Service
*s
= SERVICE(u
);
1223 /* Load a .service file */
1224 if ((r
= unit_load_fragment(u
)) < 0)
1227 #ifdef HAVE_SYSV_COMPAT
1228 /* Load a classic init script as a fallback, if we couldn't find anything */
1229 if (u
->load_state
== UNIT_STUB
)
1230 if ((r
= service_load_sysv(s
)) < 0)
1234 /* Still nothing found? Then let's give up */
1235 if (u
->load_state
== UNIT_STUB
)
1238 /* We were able to load something, then let's add in the
1239 * dropin directories. */
1240 if ((r
= unit_load_dropin(unit_follow_merge(u
))) < 0)
1243 /* This is a new unit? Then let's add in some extras */
1244 if (u
->load_state
== UNIT_LOADED
) {
1245 if (s
->type
== _SERVICE_TYPE_INVALID
)
1246 s
->type
= s
->bus_name
? SERVICE_DBUS
: SERVICE_SIMPLE
;
1248 /* Oneshot services have disabled timeout by default */
1249 if (s
->type
== SERVICE_ONESHOT
&& !s
->timeout_defined
)
1250 s
->timeout_usec
= 0;
1252 service_fix_output(s
);
1254 if ((r
= unit_add_exec_dependencies(u
, &s
->exec_context
)) < 0)
1257 if ((r
= unit_add_default_cgroups(u
)) < 0)
1260 #ifdef HAVE_SYSV_COMPAT
1261 if ((r
= sysv_fix_order(s
)) < 0)
1265 if ((r
= fsck_fix_order(s
)) < 0)
1269 if ((r
= unit_watch_bus_name(u
, s
->bus_name
)) < 0)
1272 if (s
->type
== SERVICE_NOTIFY
&& s
->notify_access
== NOTIFY_NONE
)
1273 s
->notify_access
= NOTIFY_MAIN
;
1275 if (s
->watchdog_usec
> 0 && s
->notify_access
== NOTIFY_NONE
)
1276 s
->notify_access
= NOTIFY_MAIN
;
1278 if (s
->type
== SERVICE_DBUS
|| s
->bus_name
)
1279 if ((r
= unit_add_two_dependencies_by_name(u
, UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_DBUS_SOCKET
, NULL
, true)) < 0)
1282 if (UNIT(s
)->default_dependencies
)
1283 if ((r
= service_add_default_dependencies(s
)) < 0)
1287 return service_verify(s
);
1290 static void service_dump(Unit
*u
, FILE *f
, const char *prefix
) {
1292 ServiceExecCommand c
;
1293 Service
*s
= SERVICE(u
);
1294 const char *prefix2
;
1299 p2
= strappend(prefix
, "\t");
1300 prefix2
= p2
? p2
: prefix
;
1303 "%sService State: %s\n"
1305 "%sReload Result: %s\n"
1306 "%sPermissionsStartOnly: %s\n"
1307 "%sRootDirectoryStartOnly: %s\n"
1308 "%sRemainAfterExit: %s\n"
1309 "%sGuessMainPID: %s\n"
1312 "%sNotifyAccess: %s\n",
1313 prefix
, service_state_to_string(s
->state
),
1314 prefix
, service_result_to_string(s
->result
),
1315 prefix
, service_result_to_string(s
->reload_result
),
1316 prefix
, yes_no(s
->permissions_start_only
),
1317 prefix
, yes_no(s
->root_directory_start_only
),
1318 prefix
, yes_no(s
->remain_after_exit
),
1319 prefix
, yes_no(s
->guess_main_pid
),
1320 prefix
, service_type_to_string(s
->type
),
1321 prefix
, service_restart_to_string(s
->restart
),
1322 prefix
, notify_access_to_string(s
->notify_access
));
1324 if (s
->control_pid
> 0)
1326 "%sControl PID: %lu\n",
1327 prefix
, (unsigned long) s
->control_pid
);
1329 if (s
->main_pid
> 0)
1332 "%sMain PID Known: %s\n"
1333 "%sMain PID Alien: %s\n",
1334 prefix
, (unsigned long) s
->main_pid
,
1335 prefix
, yes_no(s
->main_pid_known
),
1336 prefix
, yes_no(s
->main_pid_alien
));
1341 prefix
, s
->pid_file
);
1346 "%sBus Name Good: %s\n",
1347 prefix
, s
->bus_name
,
1348 prefix
, yes_no(s
->bus_name_good
));
1350 exec_context_dump(&s
->exec_context
, f
, prefix
);
1352 for (c
= 0; c
< _SERVICE_EXEC_COMMAND_MAX
; c
++) {
1354 if (!s
->exec_command
[c
])
1357 fprintf(f
, "%s-> %s:\n",
1358 prefix
, service_exec_command_to_string(c
));
1360 exec_command_dump_list(s
->exec_command
[c
], f
, prefix2
);
1363 #ifdef HAVE_SYSV_COMPAT
1366 "%sSysV Init Script has LSB Header: %s\n"
1367 "%sSysVEnabled: %s\n",
1368 prefix
, yes_no(s
->sysv_has_lsb
),
1369 prefix
, yes_no(s
->sysv_enabled
));
1371 if (s
->sysv_start_priority
>= 0)
1373 "%sSysVStartPriority: %i\n",
1374 prefix
, s
->sysv_start_priority
);
1376 if (s
->sysv_runlevels
)
1377 fprintf(f
, "%sSysVRunLevels: %s\n",
1378 prefix
, s
->sysv_runlevels
);
1381 if (s
->fsck_passno
> 0)
1383 "%sFsckPassNo: %i\n",
1384 prefix
, s
->fsck_passno
);
1387 fprintf(f
, "%sStatus Text: %s\n",
1388 prefix
, s
->status_text
);
1393 static int service_load_pid_file(Service
*s
, bool may_warn
) {
1403 if ((r
= read_one_line_file(s
->pid_file
, &k
)) < 0) {
1405 log_info("PID file %s not readable (yet?) after %s.",
1406 s
->pid_file
, service_state_to_string(s
->state
));
1410 r
= parse_pid(k
, &pid
);
1416 if (kill(pid
, 0) < 0 && errno
!= EPERM
) {
1418 log_info("PID %lu read from file %s does not exist.",
1419 (unsigned long) pid
, s
->pid_file
);
1423 if (s
->main_pid_known
) {
1424 if (pid
== s
->main_pid
)
1427 log_debug("Main PID changing: %lu -> %lu",
1428 (unsigned long) s
->main_pid
, (unsigned long) pid
);
1429 service_unwatch_main_pid(s
);
1430 s
->main_pid_known
= false;
1432 log_debug("Main PID loaded: %lu", (unsigned long) pid
);
1434 if ((r
= service_set_main_pid(s
, pid
)) < 0)
1437 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1438 /* FIXME: we need to do something here */
1444 static int service_search_main_pid(Service
*s
) {
1450 /* If we know it anyway, don't ever fallback to unreliable
1452 if (s
->main_pid_known
)
1455 if (!s
->guess_main_pid
)
1458 assert(s
->main_pid
<= 0);
1460 if ((pid
= cgroup_bonding_search_main_pid_list(UNIT(s
)->cgroup_bondings
)) <= 0)
1463 log_debug("Main PID guessed: %lu", (unsigned long) pid
);
1464 if ((r
= service_set_main_pid(s
, pid
)) < 0)
1467 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1468 /* FIXME: we need to do something here */
1474 static void service_notify_sockets_dead(Service
*s
, bool failed_permanent
) {
1480 /* Notifies all our sockets when we die */
1482 if (s
->socket_fd
>= 0)
1485 SET_FOREACH(u
, UNIT(s
)->dependencies
[UNIT_TRIGGERED_BY
], i
)
1486 if (u
->type
== UNIT_SOCKET
)
1487 socket_notify_service_dead(SOCKET(u
), failed_permanent
);
1492 static void service_set_state(Service
*s
, ServiceState state
) {
1493 ServiceState old_state
;
1494 const UnitActiveState
*table
;
1497 table
= s
->type
== SERVICE_IDLE
? state_translation_table_idle
: state_translation_table
;
1499 old_state
= s
->state
;
1502 service_unwatch_pid_file(s
);
1504 if (state
!= SERVICE_START_PRE
&&
1505 state
!= SERVICE_START
&&
1506 state
!= SERVICE_START_POST
&&
1507 state
!= SERVICE_RELOAD
&&
1508 state
!= SERVICE_STOP
&&
1509 state
!= SERVICE_STOP_SIGTERM
&&
1510 state
!= SERVICE_STOP_SIGKILL
&&
1511 state
!= SERVICE_STOP_POST
&&
1512 state
!= SERVICE_FINAL_SIGTERM
&&
1513 state
!= SERVICE_FINAL_SIGKILL
&&
1514 state
!= SERVICE_AUTO_RESTART
)
1515 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1517 if (state
!= SERVICE_START
&&
1518 state
!= SERVICE_START_POST
&&
1519 state
!= SERVICE_RUNNING
&&
1520 state
!= SERVICE_RELOAD
&&
1521 state
!= SERVICE_STOP
&&
1522 state
!= SERVICE_STOP_SIGTERM
&&
1523 state
!= SERVICE_STOP_SIGKILL
) {
1524 service_unwatch_main_pid(s
);
1525 s
->main_command
= NULL
;
1528 if (state
!= SERVICE_START_PRE
&&
1529 state
!= SERVICE_START
&&
1530 state
!= SERVICE_START_POST
&&
1531 state
!= SERVICE_RELOAD
&&
1532 state
!= SERVICE_STOP
&&
1533 state
!= SERVICE_STOP_SIGTERM
&&
1534 state
!= SERVICE_STOP_SIGKILL
&&
1535 state
!= SERVICE_STOP_POST
&&
1536 state
!= SERVICE_FINAL_SIGTERM
&&
1537 state
!= SERVICE_FINAL_SIGKILL
) {
1538 service_unwatch_control_pid(s
);
1539 s
->control_command
= NULL
;
1540 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
1543 if (state
== SERVICE_DEAD
||
1544 state
== SERVICE_STOP
||
1545 state
== SERVICE_STOP_SIGTERM
||
1546 state
== SERVICE_STOP_SIGKILL
||
1547 state
== SERVICE_STOP_POST
||
1548 state
== SERVICE_FINAL_SIGTERM
||
1549 state
== SERVICE_FINAL_SIGKILL
||
1550 state
== SERVICE_FAILED
||
1551 state
== SERVICE_AUTO_RESTART
)
1552 service_notify_sockets_dead(s
, false);
1554 if (state
!= SERVICE_START_PRE
&&
1555 state
!= SERVICE_START
&&
1556 state
!= SERVICE_START_POST
&&
1557 state
!= SERVICE_RUNNING
&&
1558 state
!= SERVICE_RELOAD
&&
1559 state
!= SERVICE_STOP
&&
1560 state
!= SERVICE_STOP_SIGTERM
&&
1561 state
!= SERVICE_STOP_SIGKILL
&&
1562 state
!= SERVICE_STOP_POST
&&
1563 state
!= SERVICE_FINAL_SIGTERM
&&
1564 state
!= SERVICE_FINAL_SIGKILL
&&
1565 !(state
== SERVICE_DEAD
&& UNIT(s
)->job
)) {
1566 service_close_socket_fd(s
);
1567 service_connection_unref(s
);
1570 if (state
== SERVICE_STOP
)
1571 service_stop_watchdog(s
);
1573 /* For the inactive states unit_notify() will trim the cgroup,
1574 * but for exit we have to do that ourselves... */
1575 if (state
== SERVICE_EXITED
&& UNIT(s
)->manager
->n_reloading
<= 0)
1576 cgroup_bonding_trim_list(UNIT(s
)->cgroup_bondings
, true);
1578 if (old_state
!= state
)
1579 log_debug("%s changed %s -> %s", UNIT(s
)->id
, service_state_to_string(old_state
), service_state_to_string(state
));
1581 unit_notify(UNIT(s
), table
[old_state
], table
[state
], s
->reload_result
== SERVICE_SUCCESS
);
1582 s
->reload_result
= SERVICE_SUCCESS
;
1585 static int service_coldplug(Unit
*u
) {
1586 Service
*s
= SERVICE(u
);
1590 assert(s
->state
== SERVICE_DEAD
);
1592 if (s
->deserialized_state
!= s
->state
) {
1594 if (s
->deserialized_state
== SERVICE_START_PRE
||
1595 s
->deserialized_state
== SERVICE_START
||
1596 s
->deserialized_state
== SERVICE_START_POST
||
1597 s
->deserialized_state
== SERVICE_RELOAD
||
1598 s
->deserialized_state
== SERVICE_STOP
||
1599 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1600 s
->deserialized_state
== SERVICE_STOP_SIGKILL
||
1601 s
->deserialized_state
== SERVICE_STOP_POST
||
1602 s
->deserialized_state
== SERVICE_FINAL_SIGTERM
||
1603 s
->deserialized_state
== SERVICE_FINAL_SIGKILL
||
1604 s
->deserialized_state
== SERVICE_AUTO_RESTART
) {
1606 if (s
->deserialized_state
== SERVICE_AUTO_RESTART
|| s
->timeout_usec
> 0) {
1609 k
= s
->deserialized_state
== SERVICE_AUTO_RESTART
? s
->restart_usec
: s
->timeout_usec
;
1611 if ((r
= unit_watch_timer(UNIT(s
), k
, &s
->timer_watch
)) < 0)
1616 if ((s
->deserialized_state
== SERVICE_START
&&
1617 (s
->type
== SERVICE_FORKING
||
1618 s
->type
== SERVICE_DBUS
||
1619 s
->type
== SERVICE_ONESHOT
||
1620 s
->type
== SERVICE_NOTIFY
)) ||
1621 s
->deserialized_state
== SERVICE_START_POST
||
1622 s
->deserialized_state
== SERVICE_RUNNING
||
1623 s
->deserialized_state
== SERVICE_RELOAD
||
1624 s
->deserialized_state
== SERVICE_STOP
||
1625 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1626 s
->deserialized_state
== SERVICE_STOP_SIGKILL
)
1627 if (s
->main_pid
> 0)
1628 if ((r
= unit_watch_pid(UNIT(s
), s
->main_pid
)) < 0)
1631 if (s
->deserialized_state
== SERVICE_START_PRE
||
1632 s
->deserialized_state
== SERVICE_START
||
1633 s
->deserialized_state
== SERVICE_START_POST
||
1634 s
->deserialized_state
== SERVICE_RELOAD
||
1635 s
->deserialized_state
== SERVICE_STOP
||
1636 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1637 s
->deserialized_state
== SERVICE_STOP_SIGKILL
||
1638 s
->deserialized_state
== SERVICE_STOP_POST
||
1639 s
->deserialized_state
== SERVICE_FINAL_SIGTERM
||
1640 s
->deserialized_state
== SERVICE_FINAL_SIGKILL
)
1641 if (s
->control_pid
> 0)
1642 if ((r
= unit_watch_pid(UNIT(s
), s
->control_pid
)) < 0)
1645 if (s
->deserialized_state
== SERVICE_START_POST
||
1646 s
->deserialized_state
== SERVICE_RUNNING
)
1647 service_handle_watchdog(s
);
1649 service_set_state(s
, s
->deserialized_state
);
1654 static int service_collect_fds(Service
*s
, int **fds
, unsigned *n_fds
) {
1658 unsigned rn_fds
= 0;
1665 if (s
->socket_fd
>= 0)
1668 SET_FOREACH(u
, UNIT(s
)->dependencies
[UNIT_TRIGGERED_BY
], i
) {
1673 if (u
->type
!= UNIT_SOCKET
)
1678 if ((r
= socket_collect_fds(sock
, &cfds
, &cn_fds
)) < 0)
1690 if (!(t
= new(int, rn_fds
+cn_fds
))) {
1696 memcpy(t
, rfds
, rn_fds
* sizeof(int));
1697 memcpy(t
+rn_fds
, cfds
, cn_fds
* sizeof(int));
1702 rn_fds
= rn_fds
+cn_fds
;
1717 static int service_spawn(
1722 bool apply_permissions
,
1724 bool apply_tty_stdin
,
1725 bool set_notify_socket
,
1731 int *fds
= NULL
, *fdsbuf
= NULL
;
1732 unsigned n_fds
= 0, n_env
= 0;
1733 char **argv
= NULL
, **final_env
= NULL
, **our_env
= NULL
;
1740 s
->exec_context
.std_input
== EXEC_INPUT_SOCKET
||
1741 s
->exec_context
.std_output
== EXEC_OUTPUT_SOCKET
||
1742 s
->exec_context
.std_error
== EXEC_OUTPUT_SOCKET
) {
1744 if (s
->socket_fd
>= 0) {
1745 fds
= &s
->socket_fd
;
1748 if ((r
= service_collect_fds(s
, &fdsbuf
, &n_fds
)) < 0)
1755 if (timeout
&& s
->timeout_usec
) {
1756 if ((r
= unit_watch_timer(UNIT(s
), s
->timeout_usec
, &s
->timer_watch
)) < 0)
1759 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1761 if (!(argv
= unit_full_printf_strv(UNIT(s
), c
->argv
))) {
1766 if (!(our_env
= new0(char*, 4))) {
1771 if (set_notify_socket
)
1772 if (asprintf(our_env
+ n_env
++, "NOTIFY_SOCKET=%s", UNIT(s
)->manager
->notify_socket
) < 0) {
1777 if (s
->main_pid
> 0)
1778 if (asprintf(our_env
+ n_env
++, "MAINPID=%lu", (unsigned long) s
->main_pid
) < 0) {
1783 if (s
->watchdog_usec
> 0)
1784 if (asprintf(our_env
+ n_env
++, "WATCHDOG_USEC=%llu", (unsigned long long) s
->watchdog_usec
) < 0) {
1789 if (!(final_env
= strv_env_merge(2,
1790 UNIT(s
)->manager
->environment
,
1805 UNIT(s
)->manager
->confirm_spawn
,
1806 UNIT(s
)->cgroup_bondings
,
1807 UNIT(s
)->cgroup_attributes
,
1808 is_control
? "control" : NULL
,
1810 s
->type
== SERVICE_IDLE
? UNIT(s
)->manager
->idle_pipe
: NULL
,
1817 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1818 /* FIXME: we need to do something here */
1824 strv_free(final_env
);
1834 strv_free(final_env
);
1837 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1842 static int main_pid_good(Service
*s
) {
1845 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1848 /* If we know the pid file, then lets just check if it is
1850 if (s
->main_pid_known
) {
1852 /* If it's an alien child let's check if it is still
1854 if (s
->main_pid_alien
)
1855 return kill(s
->main_pid
, 0) >= 0 || errno
!= ESRCH
;
1857 /* .. otherwise assume we'll get a SIGCHLD for it,
1858 * which we really should wait for to collect exit
1859 * status and code */
1860 return s
->main_pid
> 0;
1863 /* We don't know the pid */
1867 static int control_pid_good(Service
*s
) {
1870 return s
->control_pid
> 0;
1873 static int cgroup_good(Service
*s
) {
1878 if ((r
= cgroup_bonding_is_empty_list(UNIT(s
)->cgroup_bondings
)) < 0)
1884 static void service_enter_dead(Service
*s
, ServiceResult f
, bool allow_restart
) {
1888 if (f
!= SERVICE_SUCCESS
)
1891 if (allow_restart
&&
1892 !s
->forbid_restart
&&
1893 (s
->restart
== SERVICE_RESTART_ALWAYS
||
1894 (s
->restart
== SERVICE_RESTART_ON_SUCCESS
&& s
->result
== SERVICE_SUCCESS
) ||
1895 (s
->restart
== SERVICE_RESTART_ON_FAILURE
&& s
->result
!= SERVICE_SUCCESS
) ||
1896 (s
->restart
== SERVICE_RESTART_ON_ABORT
&& (s
->result
== SERVICE_FAILURE_SIGNAL
||
1897 s
->result
== SERVICE_FAILURE_CORE_DUMP
)))) {
1899 r
= unit_watch_timer(UNIT(s
), s
->restart_usec
, &s
->timer_watch
);
1903 service_set_state(s
, SERVICE_AUTO_RESTART
);
1905 service_set_state(s
, s
->result
!= SERVICE_SUCCESS
? SERVICE_FAILED
: SERVICE_DEAD
);
1907 s
->forbid_restart
= false;
1912 log_warning("%s failed to run install restart timer: %s", UNIT(s
)->id
, strerror(-r
));
1913 service_enter_dead(s
, SERVICE_FAILURE_RESOURCES
, false);
1916 static void service_enter_signal(Service
*s
, ServiceState state
, ServiceResult f
);
1918 static void service_enter_stop_post(Service
*s
, ServiceResult f
) {
1922 if (f
!= SERVICE_SUCCESS
)
1925 service_unwatch_control_pid(s
);
1927 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP_POST
])) {
1928 s
->control_command_id
= SERVICE_EXEC_STOP_POST
;
1930 r
= service_spawn(s
,
1934 !s
->permissions_start_only
,
1935 !s
->root_directory_start_only
,
1944 service_set_state(s
, SERVICE_STOP_POST
);
1946 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_SUCCESS
);
1951 log_warning("%s failed to run 'stop-post' task: %s", UNIT(s
)->id
, strerror(-r
));
1952 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
1955 static void service_enter_signal(Service
*s
, ServiceState state
, ServiceResult f
) {
1957 Set
*pid_set
= NULL
;
1958 bool wait_for_exit
= false;
1962 if (f
!= SERVICE_SUCCESS
)
1965 if (s
->exec_context
.kill_mode
!= KILL_NONE
) {
1966 int sig
= (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_FINAL_SIGTERM
) ? s
->exec_context
.kill_signal
: SIGKILL
;
1968 if (s
->main_pid
> 0) {
1969 if (kill_and_sigcont(s
->main_pid
, sig
) < 0 && errno
!= ESRCH
)
1970 log_warning("Failed to kill main process %li: %m", (long) s
->main_pid
);
1972 wait_for_exit
= !s
->main_pid_alien
;
1975 if (s
->control_pid
> 0) {
1976 if (kill_and_sigcont(s
->control_pid
, sig
) < 0 && errno
!= ESRCH
)
1977 log_warning("Failed to kill control process %li: %m", (long) s
->control_pid
);
1979 wait_for_exit
= true;
1982 if (s
->exec_context
.kill_mode
== KILL_CONTROL_GROUP
) {
1984 if (!(pid_set
= set_new(trivial_hash_func
, trivial_compare_func
))) {
1989 /* Exclude the main/control pids from being killed via the cgroup */
1990 if (s
->main_pid
> 0)
1991 if ((r
= set_put(pid_set
, LONG_TO_PTR(s
->main_pid
))) < 0)
1994 if (s
->control_pid
> 0)
1995 if ((r
= set_put(pid_set
, LONG_TO_PTR(s
->control_pid
))) < 0)
1998 r
= cgroup_bonding_kill_list(UNIT(s
)->cgroup_bondings
, sig
, true, false, pid_set
, NULL
);
2000 if (r
!= -EAGAIN
&& r
!= -ESRCH
&& r
!= -ENOENT
)
2001 log_warning("Failed to kill control group: %s", strerror(-r
));
2003 wait_for_exit
= true;
2010 if (wait_for_exit
) {
2011 if (s
->timeout_usec
> 0)
2012 if ((r
= unit_watch_timer(UNIT(s
), s
->timeout_usec
, &s
->timer_watch
)) < 0)
2015 service_set_state(s
, state
);
2016 } else if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
2017 service_enter_stop_post(s
, SERVICE_SUCCESS
);
2019 service_enter_dead(s
, SERVICE_SUCCESS
, true);
2024 log_warning("%s failed to kill processes: %s", UNIT(s
)->id
, strerror(-r
));
2026 if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
2027 service_enter_stop_post(s
, SERVICE_FAILURE_RESOURCES
);
2029 service_enter_dead(s
, SERVICE_FAILURE_RESOURCES
, true);
2035 static void service_enter_stop(Service
*s
, ServiceResult f
) {
2040 if (f
!= SERVICE_SUCCESS
)
2043 service_unwatch_control_pid(s
);
2045 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP
])) {
2046 s
->control_command_id
= SERVICE_EXEC_STOP
;
2048 r
= service_spawn(s
,
2052 !s
->permissions_start_only
,
2053 !s
->root_directory_start_only
,
2061 service_set_state(s
, SERVICE_STOP
);
2063 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_SUCCESS
);
2068 log_warning("%s failed to run 'stop' task: %s", UNIT(s
)->id
, strerror(-r
));
2069 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
2072 static void service_enter_running(Service
*s
, ServiceResult f
) {
2073 int main_pid_ok
, cgroup_ok
;
2076 if (f
!= SERVICE_SUCCESS
)
2079 main_pid_ok
= main_pid_good(s
);
2080 cgroup_ok
= cgroup_good(s
);
2082 if ((main_pid_ok
> 0 || (main_pid_ok
< 0 && cgroup_ok
!= 0)) &&
2083 (s
->bus_name_good
|| s
->type
!= SERVICE_DBUS
))
2084 service_set_state(s
, SERVICE_RUNNING
);
2085 else if (s
->remain_after_exit
)
2086 service_set_state(s
, SERVICE_EXITED
);
2088 service_enter_stop(s
, SERVICE_SUCCESS
);
2091 static void service_enter_start_post(Service
*s
) {
2095 service_unwatch_control_pid(s
);
2097 if (s
->watchdog_usec
> 0)
2098 service_reset_watchdog(s
);
2100 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_POST
])) {
2101 s
->control_command_id
= SERVICE_EXEC_START_POST
;
2103 r
= service_spawn(s
,
2107 !s
->permissions_start_only
,
2108 !s
->root_directory_start_only
,
2116 service_set_state(s
, SERVICE_START_POST
);
2118 service_enter_running(s
, SERVICE_SUCCESS
);
2123 log_warning("%s failed to run 'start-post' task: %s", UNIT(s
)->id
, strerror(-r
));
2124 service_enter_stop(s
, SERVICE_FAILURE_RESOURCES
);
2127 static void service_enter_start(Service
*s
) {
2134 assert(s
->exec_command
[SERVICE_EXEC_START
]);
2135 assert(!s
->exec_command
[SERVICE_EXEC_START
]->command_next
|| s
->type
== SERVICE_ONESHOT
);
2137 if (s
->type
== SERVICE_FORKING
)
2138 service_unwatch_control_pid(s
);
2140 service_unwatch_main_pid(s
);
2142 /* We want to ensure that nobody leaks processes from
2143 * START_PRE here, so let's go on a killing spree, People
2144 * should not spawn long running processes from START_PRE. */
2145 cgroup_bonding_kill_list(UNIT(s
)->cgroup_bondings
, SIGKILL
, true, true, NULL
, "control");
2147 if (s
->type
== SERVICE_FORKING
) {
2148 s
->control_command_id
= SERVICE_EXEC_START
;
2149 c
= s
->control_command
= s
->exec_command
[SERVICE_EXEC_START
];
2151 s
->main_command
= NULL
;
2153 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
2154 s
->control_command
= NULL
;
2156 c
= s
->main_command
= s
->exec_command
[SERVICE_EXEC_START
];
2159 r
= service_spawn(s
,
2161 s
->type
== SERVICE_FORKING
|| s
->type
== SERVICE_DBUS
|| s
->type
== SERVICE_NOTIFY
|| s
->type
== SERVICE_ONESHOT
,
2166 s
->notify_access
!= NOTIFY_NONE
,
2172 if (s
->type
== SERVICE_SIMPLE
|| s
->type
== SERVICE_IDLE
) {
2173 /* For simple services we immediately start
2174 * the START_POST binaries. */
2176 service_set_main_pid(s
, pid
);
2177 service_enter_start_post(s
);
2179 } else if (s
->type
== SERVICE_FORKING
) {
2181 /* For forking services we wait until the start
2182 * process exited. */
2184 s
->control_pid
= pid
;
2185 service_set_state(s
, SERVICE_START
);
2187 } else if (s
->type
== SERVICE_ONESHOT
||
2188 s
->type
== SERVICE_DBUS
||
2189 s
->type
== SERVICE_NOTIFY
) {
2191 /* For oneshot services we wait until the start
2192 * process exited, too, but it is our main process. */
2194 /* For D-Bus services we know the main pid right away,
2195 * but wait for the bus name to appear on the
2196 * bus. Notify services are similar. */
2198 service_set_main_pid(s
, pid
);
2199 service_set_state(s
, SERVICE_START
);
2201 assert_not_reached("Unknown service type");
2206 log_warning("%s failed to run 'start' task: %s", UNIT(s
)->id
, strerror(-r
));
2207 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
2210 static void service_enter_start_pre(Service
*s
) {
2215 service_unwatch_control_pid(s
);
2217 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_PRE
])) {
2219 /* Before we start anything, let's clear up what might
2220 * be left from previous runs. */
2221 cgroup_bonding_kill_list(UNIT(s
)->cgroup_bondings
, SIGKILL
, true, true, NULL
, "control");
2223 s
->control_command_id
= SERVICE_EXEC_START_PRE
;
2225 r
= service_spawn(s
,
2229 !s
->permissions_start_only
,
2230 !s
->root_directory_start_only
,
2238 service_set_state(s
, SERVICE_START_PRE
);
2240 service_enter_start(s
);
2245 log_warning("%s failed to run 'start-pre' task: %s", UNIT(s
)->id
, strerror(-r
));
2246 service_enter_dead(s
, SERVICE_FAILURE_RESOURCES
, true);
2249 static void service_enter_restart(Service
*s
) {
2254 dbus_error_init(&error
);
2257 log_info("Job pending for unit, delaying automatic restart.");
2259 if ((r
= unit_watch_timer(UNIT(s
), s
->restart_usec
, &s
->timer_watch
)) < 0)
2265 /* Any units that are bound to this service must also be
2266 * restarted. We use JOB_RESTART (instead of the more obvious
2267 * JOB_START) here so that those dependency jobs will be added
2269 r
= manager_add_job(UNIT(s
)->manager
, JOB_RESTART
, UNIT(s
), JOB_FAIL
, false, &error
, NULL
);
2273 log_debug("%s scheduled restart job.", UNIT(s
)->id
);
2277 log_warning("%s failed to schedule restart job: %s", UNIT(s
)->id
, bus_error(&error
, -r
));
2278 service_enter_dead(s
, SERVICE_FAILURE_RESOURCES
, false);
2280 dbus_error_free(&error
);
2283 static void service_enter_reload(Service
*s
) {
2288 service_unwatch_control_pid(s
);
2290 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_RELOAD
])) {
2291 s
->control_command_id
= SERVICE_EXEC_RELOAD
;
2293 r
= service_spawn(s
,
2297 !s
->permissions_start_only
,
2298 !s
->root_directory_start_only
,
2306 service_set_state(s
, SERVICE_RELOAD
);
2308 service_enter_running(s
, SERVICE_SUCCESS
);
2313 log_warning("%s failed to run 'reload' task: %s", UNIT(s
)->id
, strerror(-r
));
2314 s
->reload_result
= SERVICE_FAILURE_RESOURCES
;
2315 service_enter_running(s
, SERVICE_SUCCESS
);
2318 static void service_run_next_control(Service
*s
) {
2322 assert(s
->control_command
);
2323 assert(s
->control_command
->command_next
);
2325 assert(s
->control_command_id
!= SERVICE_EXEC_START
);
2327 s
->control_command
= s
->control_command
->command_next
;
2328 service_unwatch_control_pid(s
);
2330 r
= service_spawn(s
,
2334 !s
->permissions_start_only
,
2335 !s
->root_directory_start_only
,
2336 s
->control_command_id
== SERVICE_EXEC_START_PRE
||
2337 s
->control_command_id
== SERVICE_EXEC_STOP_POST
,
2347 log_warning("%s failed to run next control task: %s", UNIT(s
)->id
, strerror(-r
));
2349 if (s
->state
== SERVICE_START_PRE
)
2350 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
2351 else if (s
->state
== SERVICE_STOP
)
2352 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
2353 else if (s
->state
== SERVICE_STOP_POST
)
2354 service_enter_dead(s
, SERVICE_FAILURE_RESOURCES
, true);
2355 else if (s
->state
== SERVICE_RELOAD
) {
2356 s
->reload_result
= SERVICE_FAILURE_RESOURCES
;
2357 service_enter_running(s
, SERVICE_SUCCESS
);
2359 service_enter_stop(s
, SERVICE_FAILURE_RESOURCES
);
2362 static void service_run_next_main(Service
*s
) {
2367 assert(s
->main_command
);
2368 assert(s
->main_command
->command_next
);
2369 assert(s
->type
== SERVICE_ONESHOT
);
2371 s
->main_command
= s
->main_command
->command_next
;
2372 service_unwatch_main_pid(s
);
2374 r
= service_spawn(s
,
2381 s
->notify_access
!= NOTIFY_NONE
,
2387 service_set_main_pid(s
, pid
);
2392 log_warning("%s failed to run next main task: %s", UNIT(s
)->id
, strerror(-r
));
2393 service_enter_stop(s
, SERVICE_FAILURE_RESOURCES
);
2396 static int service_start_limit_test(Service
*s
) {
2399 if (ratelimit_test(&s
->start_limit
))
2402 switch (s
->start_limit_action
) {
2404 case SERVICE_START_LIMIT_NONE
:
2405 log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s
)->id
);
2408 case SERVICE_START_LIMIT_REBOOT
: {
2412 dbus_error_init(&error
);
2414 log_warning("%s start request repeated too quickly, rebooting.", UNIT(s
)->id
);
2416 r
= manager_add_job_by_name(UNIT(s
)->manager
, JOB_START
, SPECIAL_REBOOT_TARGET
, JOB_REPLACE
, true, &error
, NULL
);
2418 log_error("Failed to reboot: %s.", bus_error(&error
, r
));
2419 dbus_error_free(&error
);
2425 case SERVICE_START_LIMIT_REBOOT_FORCE
:
2426 log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s
)->id
);
2427 UNIT(s
)->manager
->exit_code
= MANAGER_REBOOT
;
2430 case SERVICE_START_LIMIT_REBOOT_IMMEDIATE
:
2431 log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s
)->id
);
2432 reboot(RB_AUTOBOOT
);
2436 log_error("start limit action=%i", s
->start_limit_action
);
2437 assert_not_reached("Unknown StartLimitAction.");
2443 static int service_start(Unit
*u
) {
2444 Service
*s
= SERVICE(u
);
2449 /* We cannot fulfill this request right now, try again later
2451 if (s
->state
== SERVICE_STOP
||
2452 s
->state
== SERVICE_STOP_SIGTERM
||
2453 s
->state
== SERVICE_STOP_SIGKILL
||
2454 s
->state
== SERVICE_STOP_POST
||
2455 s
->state
== SERVICE_FINAL_SIGTERM
||
2456 s
->state
== SERVICE_FINAL_SIGKILL
)
2459 /* Already on it! */
2460 if (s
->state
== SERVICE_START_PRE
||
2461 s
->state
== SERVICE_START
||
2462 s
->state
== SERVICE_START_POST
)
2465 /* A service that will be restarted must be stopped first to
2466 * trigger BindTo and/or OnFailure dependencies. If a user
2467 * does not want to wait for the holdoff time to elapse, the
2468 * service should be manually restarted, not started. */
2469 if (s
->state
== SERVICE_AUTO_RESTART
) {
2470 log_warning("%s automatic restart is pending, must be stopped before issuing start request.", UNIT(s
)->id
);
2474 assert(s
->state
== SERVICE_DEAD
|| s
->state
== SERVICE_FAILED
);
2476 /* Make sure we don't enter a busy loop of some kind. */
2477 r
= service_start_limit_test(s
);
2479 service_notify_sockets_dead(s
, true);
2483 s
->result
= SERVICE_SUCCESS
;
2484 s
->reload_result
= SERVICE_SUCCESS
;
2485 s
->main_pid_known
= false;
2486 s
->main_pid_alien
= false;
2487 s
->forbid_restart
= false;
2489 service_enter_start_pre(s
);
2493 static int service_stop(Unit
*u
) {
2494 Service
*s
= SERVICE(u
);
2498 /* Don't create restart jobs from here. */
2499 s
->forbid_restart
= true;
2502 if (s
->state
== SERVICE_STOP
||
2503 s
->state
== SERVICE_STOP_SIGTERM
||
2504 s
->state
== SERVICE_STOP_SIGKILL
||
2505 s
->state
== SERVICE_STOP_POST
||
2506 s
->state
== SERVICE_FINAL_SIGTERM
||
2507 s
->state
== SERVICE_FINAL_SIGKILL
)
2510 /* A restart will be scheduled or is in progress. */
2511 if (s
->state
== SERVICE_AUTO_RESTART
) {
2512 service_enter_dead(s
, SERVICE_SUCCESS
, false);
2516 /* If there's already something running we go directly into
2518 if (s
->state
== SERVICE_START_PRE
||
2519 s
->state
== SERVICE_START
||
2520 s
->state
== SERVICE_START_POST
||
2521 s
->state
== SERVICE_RELOAD
) {
2522 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_SUCCESS
);
2526 assert(s
->state
== SERVICE_RUNNING
||
2527 s
->state
== SERVICE_EXITED
);
2529 service_enter_stop(s
, SERVICE_SUCCESS
);
2533 static int service_reload(Unit
*u
) {
2534 Service
*s
= SERVICE(u
);
2538 assert(s
->state
== SERVICE_RUNNING
|| s
->state
== SERVICE_EXITED
);
2540 service_enter_reload(s
);
2544 static bool service_can_reload(Unit
*u
) {
2545 Service
*s
= SERVICE(u
);
2549 return !!s
->exec_command
[SERVICE_EXEC_RELOAD
];
2552 static int service_serialize(Unit
*u
, FILE *f
, FDSet
*fds
) {
2553 Service
*s
= SERVICE(u
);
2559 unit_serialize_item(u
, f
, "state", service_state_to_string(s
->state
));
2560 unit_serialize_item(u
, f
, "result", service_result_to_string(s
->result
));
2561 unit_serialize_item(u
, f
, "reload-result", service_result_to_string(s
->reload_result
));
2563 if (s
->control_pid
> 0)
2564 unit_serialize_item_format(u
, f
, "control-pid", "%lu", (unsigned long) s
->control_pid
);
2566 if (s
->main_pid_known
&& s
->main_pid
> 0)
2567 unit_serialize_item_format(u
, f
, "main-pid", "%lu", (unsigned long) s
->main_pid
);
2569 unit_serialize_item(u
, f
, "main-pid-known", yes_no(s
->main_pid_known
));
2572 unit_serialize_item(u
, f
, "status-text", s
->status_text
);
2574 /* FIXME: There's a minor uncleanliness here: if there are
2575 * multiple commands attached here, we will start from the
2576 * first one again */
2577 if (s
->control_command_id
>= 0)
2578 unit_serialize_item(u
, f
, "control-command", service_exec_command_to_string(s
->control_command_id
));
2580 if (s
->socket_fd
>= 0) {
2583 if ((copy
= fdset_put_dup(fds
, s
->socket_fd
)) < 0)
2586 unit_serialize_item_format(u
, f
, "socket-fd", "%i", copy
);
2589 if (s
->main_exec_status
.pid
> 0) {
2590 unit_serialize_item_format(u
, f
, "main-exec-status-pid", "%lu", (unsigned long) s
->main_exec_status
.pid
);
2591 dual_timestamp_serialize(f
, "main-exec-status-start", &s
->main_exec_status
.start_timestamp
);
2592 dual_timestamp_serialize(f
, "main-exec-status-exit", &s
->main_exec_status
.exit_timestamp
);
2594 if (dual_timestamp_is_set(&s
->main_exec_status
.exit_timestamp
)) {
2595 unit_serialize_item_format(u
, f
, "main-exec-status-code", "%i", s
->main_exec_status
.code
);
2596 unit_serialize_item_format(u
, f
, "main-exec-status-status", "%i", s
->main_exec_status
.status
);
2599 if (dual_timestamp_is_set(&s
->watchdog_timestamp
))
2600 dual_timestamp_serialize(f
, "watchdog-timestamp", &s
->watchdog_timestamp
);
2605 static int service_deserialize_item(Unit
*u
, const char *key
, const char *value
, FDSet
*fds
) {
2606 Service
*s
= SERVICE(u
);
2613 if (streq(key
, "state")) {
2616 if ((state
= service_state_from_string(value
)) < 0)
2617 log_debug("Failed to parse state value %s", value
);
2619 s
->deserialized_state
= state
;
2620 } else if (streq(key
, "result")) {
2623 f
= service_result_from_string(value
);
2625 log_debug("Failed to parse result value %s", value
);
2626 else if (f
!= SERVICE_SUCCESS
)
2629 } else if (streq(key
, "reload-result")) {
2632 f
= service_result_from_string(value
);
2634 log_debug("Failed to parse reload result value %s", value
);
2635 else if (f
!= SERVICE_SUCCESS
)
2636 s
->reload_result
= f
;
2638 } else if (streq(key
, "control-pid")) {
2641 if (parse_pid(value
, &pid
) < 0)
2642 log_debug("Failed to parse control-pid value %s", value
);
2644 s
->control_pid
= pid
;
2645 } else if (streq(key
, "main-pid")) {
2648 if (parse_pid(value
, &pid
) < 0)
2649 log_debug("Failed to parse main-pid value %s", value
);
2651 service_set_main_pid(s
, (pid_t
) pid
);
2652 } else if (streq(key
, "main-pid-known")) {
2655 if ((b
= parse_boolean(value
)) < 0)
2656 log_debug("Failed to parse main-pid-known value %s", value
);
2658 s
->main_pid_known
= b
;
2659 } else if (streq(key
, "status-text")) {
2662 if ((t
= strdup(value
))) {
2663 free(s
->status_text
);
2667 } else if (streq(key
, "control-command")) {
2668 ServiceExecCommand id
;
2670 if ((id
= service_exec_command_from_string(value
)) < 0)
2671 log_debug("Failed to parse exec-command value %s", value
);
2673 s
->control_command_id
= id
;
2674 s
->control_command
= s
->exec_command
[id
];
2676 } else if (streq(key
, "socket-fd")) {
2679 if (safe_atoi(value
, &fd
) < 0 || fd
< 0 || !fdset_contains(fds
, fd
))
2680 log_debug("Failed to parse socket-fd value %s", value
);
2683 if (s
->socket_fd
>= 0)
2684 close_nointr_nofail(s
->socket_fd
);
2685 s
->socket_fd
= fdset_remove(fds
, fd
);
2687 } else if (streq(key
, "main-exec-status-pid")) {
2690 if (parse_pid(value
, &pid
) < 0)
2691 log_debug("Failed to parse main-exec-status-pid value %s", value
);
2693 s
->main_exec_status
.pid
= pid
;
2694 } else if (streq(key
, "main-exec-status-code")) {
2697 if (safe_atoi(value
, &i
) < 0)
2698 log_debug("Failed to parse main-exec-status-code value %s", value
);
2700 s
->main_exec_status
.code
= i
;
2701 } else if (streq(key
, "main-exec-status-status")) {
2704 if (safe_atoi(value
, &i
) < 0)
2705 log_debug("Failed to parse main-exec-status-status value %s", value
);
2707 s
->main_exec_status
.status
= i
;
2708 } else if (streq(key
, "main-exec-status-start"))
2709 dual_timestamp_deserialize(value
, &s
->main_exec_status
.start_timestamp
);
2710 else if (streq(key
, "main-exec-status-exit"))
2711 dual_timestamp_deserialize(value
, &s
->main_exec_status
.exit_timestamp
);
2712 else if (streq(key
, "watchdog-timestamp"))
2713 dual_timestamp_deserialize(value
, &s
->watchdog_timestamp
);
2715 log_debug("Unknown serialization key '%s'", key
);
2720 static UnitActiveState
service_active_state(Unit
*u
) {
2721 const UnitActiveState
*table
;
2725 table
= SERVICE(u
)->type
== SERVICE_IDLE
? state_translation_table_idle
: state_translation_table
;
2727 return table
[SERVICE(u
)->state
];
2730 static const char *service_sub_state_to_string(Unit
*u
) {
2733 return service_state_to_string(SERVICE(u
)->state
);
2736 static bool service_check_gc(Unit
*u
) {
2737 Service
*s
= SERVICE(u
);
2741 /* Never clean up services that still have a process around,
2742 * even if the service is formally dead. */
2743 if (cgroup_good(s
) > 0 ||
2744 main_pid_good(s
) > 0 ||
2745 control_pid_good(s
) > 0)
2748 #ifdef HAVE_SYSV_COMPAT
2756 static bool service_check_snapshot(Unit
*u
) {
2757 Service
*s
= SERVICE(u
);
2761 return !s
->got_socket_fd
;
2764 static int service_retry_pid_file(Service
*s
) {
2767 assert(s
->pid_file
);
2768 assert(s
->state
== SERVICE_START
|| s
->state
== SERVICE_START_POST
);
2770 r
= service_load_pid_file(s
, false);
2774 service_unwatch_pid_file(s
);
2776 service_enter_running(s
, SERVICE_SUCCESS
);
2780 static int service_watch_pid_file(Service
*s
) {
2783 log_debug("Setting watch for %s's PID file %s", UNIT(s
)->id
, s
->pid_file_pathspec
->path
);
2784 r
= path_spec_watch(s
->pid_file_pathspec
, UNIT(s
));
2788 /* the pidfile might have appeared just before we set the watch */
2789 service_retry_pid_file(s
);
2793 log_error("Failed to set a watch for %s's PID file %s: %s",
2794 UNIT(s
)->id
, s
->pid_file_pathspec
->path
, strerror(-r
));
2795 service_unwatch_pid_file(s
);
2799 static int service_demand_pid_file(Service
*s
) {
2802 assert(s
->pid_file
);
2803 assert(!s
->pid_file_pathspec
);
2805 ps
= new0(PathSpec
, 1);
2809 ps
->path
= strdup(s
->pid_file
);
2815 path_kill_slashes(ps
->path
);
2817 /* PATH_CHANGED would not be enough. There are daemons (sendmail) that
2818 * keep their PID file open all the time. */
2819 ps
->type
= PATH_MODIFIED
;
2820 ps
->inotify_fd
= -1;
2822 s
->pid_file_pathspec
= ps
;
2824 return service_watch_pid_file(s
);
2827 static void service_fd_event(Unit
*u
, int fd
, uint32_t events
, Watch
*w
) {
2828 Service
*s
= SERVICE(u
);
2832 assert(s
->state
== SERVICE_START
|| s
->state
== SERVICE_START_POST
);
2833 assert(s
->pid_file_pathspec
);
2834 assert(path_spec_owns_inotify_fd(s
->pid_file_pathspec
, fd
));
2836 log_debug("inotify event for %s", u
->id
);
2838 if (path_spec_fd_event(s
->pid_file_pathspec
, events
) < 0)
2841 if (service_retry_pid_file(s
) == 0)
2844 if (service_watch_pid_file(s
) < 0)
2849 service_unwatch_pid_file(s
);
2850 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
2853 static void service_sigchld_event(Unit
*u
, pid_t pid
, int code
, int status
) {
2854 Service
*s
= SERVICE(u
);
2860 if (UNIT(s
)->fragment_path
? is_clean_exit(code
, status
) : is_clean_exit_lsb(code
, status
))
2861 f
= SERVICE_SUCCESS
;
2862 else if (code
== CLD_EXITED
)
2863 f
= SERVICE_FAILURE_EXIT_CODE
;
2864 else if (code
== CLD_KILLED
)
2865 f
= SERVICE_FAILURE_SIGNAL
;
2866 else if (code
== CLD_DUMPED
)
2867 f
= SERVICE_FAILURE_CORE_DUMP
;
2869 assert_not_reached("Unknown code");
2871 if (s
->main_pid
== pid
) {
2872 /* Forking services may occasionally move to a new PID.
2873 * As long as they update the PID file before exiting the old
2874 * PID, they're fine. */
2875 if (service_load_pid_file(s
, false) == 0)
2879 exec_status_exit(&s
->main_exec_status
, &s
->exec_context
, pid
, code
, status
);
2881 /* If this is not a forking service than the main
2882 * process got started and hence we copy the exit
2883 * status so that it is recorded both as main and as
2884 * control process exit status */
2885 if (s
->main_command
) {
2886 s
->main_command
->exec_status
= s
->main_exec_status
;
2888 if (s
->main_command
->ignore
)
2889 f
= SERVICE_SUCCESS
;
2892 log_full(f
== SERVICE_SUCCESS
? LOG_DEBUG
: LOG_NOTICE
,
2893 "%s: main process exited, code=%s, status=%i", u
->id
, sigchld_code_to_string(code
), status
);
2895 if (f
!= SERVICE_SUCCESS
)
2898 if (s
->main_command
&&
2899 s
->main_command
->command_next
&&
2900 f
== SERVICE_SUCCESS
) {
2902 /* There is another command to *
2903 * execute, so let's do that. */
2905 log_debug("%s running next main command for state %s", u
->id
, service_state_to_string(s
->state
));
2906 service_run_next_main(s
);
2910 /* The service exited, so the service is officially
2912 s
->main_command
= NULL
;
2916 case SERVICE_START_POST
:
2917 case SERVICE_RELOAD
:
2919 /* Need to wait until the operation is
2924 if (s
->type
== SERVICE_ONESHOT
) {
2925 /* This was our main goal, so let's go on */
2926 if (f
== SERVICE_SUCCESS
)
2927 service_enter_start_post(s
);
2929 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, f
);
2932 assert(s
->type
== SERVICE_DBUS
|| s
->type
== SERVICE_NOTIFY
);
2937 case SERVICE_RUNNING
:
2938 service_enter_running(s
, f
);
2941 case SERVICE_STOP_SIGTERM
:
2942 case SERVICE_STOP_SIGKILL
:
2944 if (!control_pid_good(s
))
2945 service_enter_stop_post(s
, f
);
2947 /* If there is still a control process, wait for that first */
2951 assert_not_reached("Uh, main process died at wrong time.");
2955 } else if (s
->control_pid
== pid
) {
2959 if (s
->control_command
) {
2960 exec_status_exit(&s
->control_command
->exec_status
, &s
->exec_context
, pid
, code
, status
);
2962 if (s
->control_command
->ignore
)
2963 f
= SERVICE_SUCCESS
;
2966 log_full(f
== SERVICE_SUCCESS
? LOG_DEBUG
: LOG_NOTICE
,
2967 "%s: control process exited, code=%s status=%i", u
->id
, sigchld_code_to_string(code
), status
);
2969 if (f
!= SERVICE_SUCCESS
)
2972 /* Immediately get rid of the cgroup, so that the
2973 * kernel doesn't delay the cgroup empty messages for
2974 * the service cgroup any longer than necessary */
2975 cgroup_bonding_kill_list(UNIT(s
)->cgroup_bondings
, SIGKILL
, true, true, NULL
, "control");
2977 if (s
->control_command
&&
2978 s
->control_command
->command_next
&&
2979 f
== SERVICE_SUCCESS
) {
2981 /* There is another command to *
2982 * execute, so let's do that. */
2984 log_debug("%s running next control command for state %s", u
->id
, service_state_to_string(s
->state
));
2985 service_run_next_control(s
);
2988 /* No further commands for this step, so let's
2989 * figure out what to do next */
2991 s
->control_command
= NULL
;
2992 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
2994 log_debug("%s got final SIGCHLD for state %s", u
->id
, service_state_to_string(s
->state
));
2998 case SERVICE_START_PRE
:
2999 if (f
== SERVICE_SUCCESS
)
3000 service_enter_start(s
);
3002 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, f
);
3006 assert(s
->type
== SERVICE_FORKING
);
3008 if (f
!= SERVICE_SUCCESS
) {
3009 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, f
);
3014 bool has_start_post
;
3017 /* Let's try to load the pid file here if we can.
3018 * The PID file might actually be created by a START_POST
3019 * script. In that case don't worry if the loading fails. */
3021 has_start_post
= !!s
->exec_command
[SERVICE_EXEC_START_POST
];
3022 r
= service_load_pid_file(s
, !has_start_post
);
3023 if (!has_start_post
&& r
< 0) {
3024 r
= service_demand_pid_file(s
);
3025 if (r
< 0 || !cgroup_good(s
))
3026 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
3030 service_search_main_pid(s
);
3032 service_enter_start_post(s
);
3035 case SERVICE_START_POST
:
3036 if (f
!= SERVICE_SUCCESS
) {
3037 service_enter_stop(s
, f
);
3044 r
= service_load_pid_file(s
, true);
3046 r
= service_demand_pid_file(s
);
3047 if (r
< 0 || !cgroup_good(s
))
3048 service_enter_stop(s
, SERVICE_FAILURE_RESOURCES
);
3052 service_search_main_pid(s
);
3054 service_enter_running(s
, SERVICE_SUCCESS
);
3057 case SERVICE_RELOAD
:
3058 if (f
== SERVICE_SUCCESS
) {
3059 service_load_pid_file(s
, true);
3060 service_search_main_pid(s
);
3063 s
->reload_result
= f
;
3064 service_enter_running(s
, SERVICE_SUCCESS
);
3068 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, f
);
3071 case SERVICE_STOP_SIGTERM
:
3072 case SERVICE_STOP_SIGKILL
:
3073 if (main_pid_good(s
) <= 0)
3074 service_enter_stop_post(s
, f
);
3076 /* If there is still a service
3077 * process around, wait until
3078 * that one quit, too */
3081 case SERVICE_STOP_POST
:
3082 case SERVICE_FINAL_SIGTERM
:
3083 case SERVICE_FINAL_SIGKILL
:
3084 service_enter_dead(s
, f
, true);
3088 assert_not_reached("Uh, control process died at wrong time.");
3093 /* Notify clients about changed exit status */
3094 unit_add_to_dbus_queue(u
);
3097 static void service_timer_event(Unit
*u
, uint64_t elapsed
, Watch
* w
) {
3098 Service
*s
= SERVICE(u
);
3101 assert(elapsed
== 1);
3103 if (w
== &s
->watchdog_watch
) {
3104 service_handle_watchdog(s
);
3108 assert(w
== &s
->timer_watch
);
3112 case SERVICE_START_PRE
:
3114 log_warning("%s operation timed out. Terminating.", u
->id
);
3115 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_TIMEOUT
);
3118 case SERVICE_START_POST
:
3119 log_warning("%s operation timed out. Stopping.", u
->id
);
3120 service_enter_stop(s
, SERVICE_FAILURE_TIMEOUT
);
3123 case SERVICE_RELOAD
:
3124 log_warning("%s operation timed out. Stopping.", u
->id
);
3125 s
->reload_result
= SERVICE_FAILURE_TIMEOUT
;
3126 service_enter_running(s
, SERVICE_SUCCESS
);
3130 log_warning("%s stopping timed out. Terminating.", u
->id
);
3131 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, SERVICE_FAILURE_TIMEOUT
);
3134 case SERVICE_STOP_SIGTERM
:
3135 if (s
->exec_context
.send_sigkill
) {
3136 log_warning("%s stopping timed out. Killing.", u
->id
);
3137 service_enter_signal(s
, SERVICE_STOP_SIGKILL
, SERVICE_FAILURE_TIMEOUT
);
3139 log_warning("%s stopping timed out. Skipping SIGKILL.", u
->id
);
3140 service_enter_stop_post(s
, SERVICE_FAILURE_TIMEOUT
);
3145 case SERVICE_STOP_SIGKILL
:
3146 /* Uh, we sent a SIGKILL and it is still not gone?
3147 * Must be something we cannot kill, so let's just be
3148 * weirded out and continue */
3150 log_warning("%s still around after SIGKILL. Ignoring.", u
->id
);
3151 service_enter_stop_post(s
, SERVICE_FAILURE_TIMEOUT
);
3154 case SERVICE_STOP_POST
:
3155 log_warning("%s stopping timed out (2). Terminating.", u
->id
);
3156 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_TIMEOUT
);
3159 case SERVICE_FINAL_SIGTERM
:
3160 if (s
->exec_context
.send_sigkill
) {
3161 log_warning("%s stopping timed out (2). Killing.", u
->id
);
3162 service_enter_signal(s
, SERVICE_FINAL_SIGKILL
, SERVICE_FAILURE_TIMEOUT
);
3164 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u
->id
);
3165 service_enter_dead(s
, SERVICE_FAILURE_TIMEOUT
, false);
3170 case SERVICE_FINAL_SIGKILL
:
3171 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u
->id
);
3172 service_enter_dead(s
, SERVICE_FAILURE_TIMEOUT
, true);
3175 case SERVICE_AUTO_RESTART
:
3176 log_info("%s holdoff time over, scheduling restart.", u
->id
);
3177 service_enter_restart(s
);
3181 assert_not_reached("Timeout at wrong time.");
3185 static void service_cgroup_notify_event(Unit
*u
) {
3186 Service
*s
= SERVICE(u
);
3190 log_debug("%s: cgroup is empty", u
->id
);
3194 /* Waiting for SIGCHLD is usually more interesting,
3195 * because it includes return codes/signals. Which is
3196 * why we ignore the cgroup events for most cases,
3197 * except when we don't know pid which to expect the
3201 case SERVICE_START_POST
:
3202 /* If we were hoping for the daemon to write its PID file,
3203 * we can give up now. */
3204 if (s
->pid_file_pathspec
) {
3205 log_warning("%s never wrote its PID file. Failing.", UNIT(s
)->id
);
3206 service_unwatch_pid_file(s
);
3207 if (s
->state
== SERVICE_START
)
3208 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, SERVICE_FAILURE_RESOURCES
);
3210 service_enter_stop(s
, SERVICE_FAILURE_RESOURCES
);
3214 case SERVICE_RUNNING
:
3215 /* service_enter_running() will figure out what to do */
3216 service_enter_running(s
, SERVICE_SUCCESS
);
3219 case SERVICE_STOP_SIGTERM
:
3220 case SERVICE_STOP_SIGKILL
:
3222 if (main_pid_good(s
) <= 0 && !control_pid_good(s
))
3223 service_enter_stop_post(s
, SERVICE_SUCCESS
);
3227 case SERVICE_FINAL_SIGTERM
:
3228 case SERVICE_FINAL_SIGKILL
:
3229 if (main_pid_good(s
) <= 0 && !control_pid_good(s
))
3230 service_enter_dead(s
, SERVICE_SUCCESS
, SERVICE_SUCCESS
);
3239 static void service_notify_message(Unit
*u
, pid_t pid
, char **tags
) {
3240 Service
*s
= SERVICE(u
);
3245 if (s
->notify_access
== NOTIFY_NONE
) {
3246 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
3247 u
->id
, (unsigned long) pid
);
3251 if (s
->notify_access
== NOTIFY_MAIN
&& pid
!= s
->main_pid
) {
3252 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
3253 u
->id
, (unsigned long) pid
, (unsigned long) s
->main_pid
);
3257 log_debug("%s: Got message", u
->id
);
3259 /* Interpret MAINPID= */
3260 if ((e
= strv_find_prefix(tags
, "MAINPID=")) &&
3261 (s
->state
== SERVICE_START
||
3262 s
->state
== SERVICE_START_POST
||
3263 s
->state
== SERVICE_RUNNING
||
3264 s
->state
== SERVICE_RELOAD
)) {
3266 if (parse_pid(e
+ 8, &pid
) < 0)
3267 log_warning("Failed to parse notification message %s", e
);
3269 log_debug("%s: got %s", u
->id
, e
);
3270 service_set_main_pid(s
, pid
);
3274 /* Interpret READY= */
3275 if (s
->type
== SERVICE_NOTIFY
&&
3276 s
->state
== SERVICE_START
&&
3277 strv_find(tags
, "READY=1")) {
3278 log_debug("%s: got READY=1", u
->id
);
3280 service_enter_start_post(s
);
3283 /* Interpret STATUS= */
3284 e
= strv_find_prefix(tags
, "STATUS=");
3290 if (!utf8_is_valid(e
+7)) {
3291 log_warning("Status message in notification is not UTF-8 clean.");
3297 log_error("Failed to allocate string.");
3301 log_debug("%s: got %s", u
->id
, e
);
3303 free(s
->status_text
);
3306 free(s
->status_text
);
3307 s
->status_text
= NULL
;
3311 if (strv_find(tags
, "WATCHDOG=1")) {
3312 log_debug("%s: got WATCHDOG=1", u
->id
);
3313 service_reset_watchdog(s
);
3316 /* Notify clients about changed status or main pid */
3317 unit_add_to_dbus_queue(u
);
3320 #ifdef HAVE_SYSV_COMPAT
3323 static void sysv_facility_in_insserv_conf(Manager
*mgr
) {
3327 if (!(f
= fopen("/etc/insserv.conf", "re"))) {
3328 r
= errno
== ENOENT
? 0 : -errno
;
3333 char l
[LINE_MAX
], *t
;
3334 char **parsed
= NULL
;
3336 if (!fgets(l
, sizeof(l
), f
)) {
3341 log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r
));
3346 if (*t
!= '$' && *t
!= '<')
3349 parsed
= strv_split(t
,WHITESPACE
);
3350 /* we ignore <interactive>, not used, equivalent to X-Interactive */
3351 if (parsed
&& !startswith_no_case (parsed
[0], "<interactive>")) {
3354 if (sysv_translate_facility(parsed
[0], NULL
, &facility
) < 0)
3356 if ((u
= manager_get_unit(mgr
, facility
)) && (u
->type
== UNIT_TARGET
)) {
3358 char *dep
= NULL
, *name
, **j
;
3360 STRV_FOREACH (j
, parsed
+1) {
3369 if (sysv_translate_facility(name
, NULL
, &dep
) < 0)
3372 r
= unit_add_two_dependencies_by_name(u
, UNIT_BEFORE
, e
, dep
, NULL
, true);
3387 static int service_enumerate(Manager
*m
) {
3391 char *path
= NULL
, *fpath
= NULL
, *name
= NULL
;
3392 Set
*runlevel_services
[ELEMENTSOF(rcnd_table
)], *shutdown_services
= NULL
;
3399 if (m
->running_as
!= MANAGER_SYSTEM
)
3402 zero(runlevel_services
);
3404 STRV_FOREACH(p
, m
->lookup_paths
.sysvrcnd_path
)
3405 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++) {
3409 path
= join(*p
, "/", rcnd_table
[i
].path
, NULL
);
3418 if (!(d
= opendir(path
))) {
3419 if (errno
!= ENOENT
)
3420 log_warning("opendir() failed on %s: %s", path
, strerror(errno
));
3425 while ((de
= readdir(d
))) {
3428 if (ignore_file(de
->d_name
))
3431 if (de
->d_name
[0] != 'S' && de
->d_name
[0] != 'K')
3434 if (strlen(de
->d_name
) < 4)
3437 a
= undecchar(de
->d_name
[1]);
3438 b
= undecchar(de
->d_name
[2]);
3444 fpath
= join(path
, "/", de
->d_name
, NULL
);
3450 if (access(fpath
, X_OK
) < 0) {
3452 if (errno
!= ENOENT
)
3453 log_warning("access() failed on %s: %s", fpath
, strerror(errno
));
3459 if (!(name
= sysv_translate_name(de
->d_name
+ 3))) {
3464 if ((r
= manager_load_unit_prepare(m
, name
, NULL
, NULL
, &service
)) < 0) {
3465 log_warning("Failed to prepare unit %s: %s", name
, strerror(-r
));
3469 if (de
->d_name
[0] == 'S') {
3471 if (rcnd_table
[i
].type
== RUNLEVEL_UP
|| rcnd_table
[i
].type
== RUNLEVEL_SYSINIT
) {
3472 SERVICE(service
)->sysv_start_priority_from_rcnd
=
3473 MAX(a
*10 + b
, SERVICE(service
)->sysv_start_priority_from_rcnd
);
3475 SERVICE(service
)->sysv_enabled
= true;
3478 if ((r
= set_ensure_allocated(&runlevel_services
[i
], trivial_hash_func
, trivial_compare_func
)) < 0)
3481 if ((r
= set_put(runlevel_services
[i
], service
)) < 0)
3484 } else if (de
->d_name
[0] == 'K' &&
3485 (rcnd_table
[i
].type
== RUNLEVEL_DOWN
||
3486 rcnd_table
[i
].type
== RUNLEVEL_SYSINIT
)) {
3488 if ((r
= set_ensure_allocated(&shutdown_services
, trivial_hash_func
, trivial_compare_func
)) < 0)
3491 if ((r
= set_put(shutdown_services
, service
)) < 0)
3497 /* Now we loaded all stubs and are aware of the lowest
3498 start-up priority for all services, not let's actually load
3499 the services, this will also tell us which services are
3500 actually native now */
3501 manager_dispatch_load_queue(m
);
3503 /* If this is a native service, rely on native ways to pull in
3504 * a service, don't pull it in via sysv rcN.d links. */
3505 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++)
3506 SET_FOREACH(service
, runlevel_services
[i
], j
) {
3507 service
= unit_follow_merge(service
);
3509 if (service
->fragment_path
)
3512 if ((r
= unit_add_two_dependencies_by_name_inverse(service
, UNIT_AFTER
, UNIT_WANTS
, rcnd_table
[i
].target
, NULL
, true)) < 0)
3516 /* We honour K links only for halt/reboot. For the normal
3517 * runlevels we assume the stop jobs will be implicitly added
3518 * by the core logic. Also, we don't really distinguish here
3519 * between the runlevels 0 and 6 and just add them to the
3520 * special shutdown target. On SUSE the boot.d/ runlevel is
3521 * also used for shutdown, so we add links for that too to the
3522 * shutdown target.*/
3523 SET_FOREACH(service
, shutdown_services
, j
) {
3524 service
= unit_follow_merge(service
);
3526 if (service
->fragment_path
)
3529 if ((r
= unit_add_two_dependencies_by_name(service
, UNIT_BEFORE
, UNIT_CONFLICTS
, SPECIAL_SHUTDOWN_TARGET
, NULL
, true)) < 0)
3536 sysv_facility_in_insserv_conf (m
);
3544 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++)
3545 set_free(runlevel_services
[i
]);
3546 set_free(shutdown_services
);
3555 static void service_bus_name_owner_change(
3558 const char *old_owner
,
3559 const char *new_owner
) {
3561 Service
*s
= SERVICE(u
);
3566 assert(streq(s
->bus_name
, name
));
3567 assert(old_owner
|| new_owner
);
3569 if (old_owner
&& new_owner
)
3570 log_debug("%s's D-Bus name %s changed owner from %s to %s", u
->id
, name
, old_owner
, new_owner
);
3572 log_debug("%s's D-Bus name %s no longer registered by %s", u
->id
, name
, old_owner
);
3574 log_debug("%s's D-Bus name %s now registered by %s", u
->id
, name
, new_owner
);
3576 s
->bus_name_good
= !!new_owner
;
3578 if (s
->type
== SERVICE_DBUS
) {
3580 /* service_enter_running() will figure out what to
3582 if (s
->state
== SERVICE_RUNNING
)
3583 service_enter_running(s
, SERVICE_SUCCESS
);
3584 else if (s
->state
== SERVICE_START
&& new_owner
)
3585 service_enter_start_post(s
);
3587 } else if (new_owner
&&
3589 (s
->state
== SERVICE_START
||
3590 s
->state
== SERVICE_START_POST
||
3591 s
->state
== SERVICE_RUNNING
||
3592 s
->state
== SERVICE_RELOAD
)) {
3594 /* Try to acquire PID from bus service */
3595 log_debug("Trying to acquire PID from D-Bus name...");
3597 bus_query_pid(u
->manager
, name
);
3601 static void service_bus_query_pid_done(
3606 Service
*s
= SERVICE(u
);
3611 log_debug("%s's D-Bus name %s is now owned by process %u", u
->id
, name
, (unsigned) pid
);
3613 if (s
->main_pid
<= 0 &&
3614 (s
->state
== SERVICE_START
||
3615 s
->state
== SERVICE_START_POST
||
3616 s
->state
== SERVICE_RUNNING
||
3617 s
->state
== SERVICE_RELOAD
))
3618 service_set_main_pid(s
, pid
);
3621 int service_set_socket_fd(Service
*s
, int fd
, Socket
*sock
) {
3626 /* This is called by the socket code when instantiating a new
3627 * service for a stream socket and the socket needs to be
3630 if (UNIT(s
)->load_state
!= UNIT_LOADED
)
3633 if (s
->socket_fd
>= 0)
3636 if (s
->state
!= SERVICE_DEAD
)
3640 s
->got_socket_fd
= true;
3642 unit_ref_set(&s
->accept_socket
, UNIT(sock
));
3644 return unit_add_two_dependencies(UNIT(sock
), UNIT_BEFORE
, UNIT_TRIGGERS
, UNIT(s
), false);
3647 static void service_reset_failed(Unit
*u
) {
3648 Service
*s
= SERVICE(u
);
3652 if (s
->state
== SERVICE_FAILED
)
3653 service_set_state(s
, SERVICE_DEAD
);
3655 s
->result
= SERVICE_SUCCESS
;
3656 s
->reload_result
= SERVICE_SUCCESS
;
3659 static int service_kill(Unit
*u
, KillWho who
, KillMode mode
, int signo
, DBusError
*error
) {
3660 Service
*s
= SERVICE(u
);
3662 Set
*pid_set
= NULL
;
3666 if (s
->main_pid
<= 0 && who
== KILL_MAIN
) {
3667 dbus_set_error(error
, BUS_ERROR_NO_SUCH_PROCESS
, "No main process to kill");
3671 if (s
->control_pid
<= 0 && who
== KILL_CONTROL
) {
3672 dbus_set_error(error
, BUS_ERROR_NO_SUCH_PROCESS
, "No control process to kill");
3676 if (who
== KILL_CONTROL
|| who
== KILL_ALL
)
3677 if (s
->control_pid
> 0)
3678 if (kill(s
->control_pid
, signo
) < 0)
3681 if (who
== KILL_MAIN
|| who
== KILL_ALL
)
3682 if (s
->main_pid
> 0)
3683 if (kill(s
->main_pid
, signo
) < 0)
3686 if (who
== KILL_ALL
&& mode
== KILL_CONTROL_GROUP
) {
3689 if (!(pid_set
= set_new(trivial_hash_func
, trivial_compare_func
)))
3692 /* Exclude the control/main pid from being killed via the cgroup */
3693 if (s
->control_pid
> 0)
3694 if ((q
= set_put(pid_set
, LONG_TO_PTR(s
->control_pid
))) < 0) {
3699 if (s
->main_pid
> 0)
3700 if ((q
= set_put(pid_set
, LONG_TO_PTR(s
->main_pid
))) < 0) {
3704 q
= cgroup_bonding_kill_list(UNIT(s
)->cgroup_bondings
, signo
, false, false, pid_set
, NULL
);
3706 if (q
!= -EAGAIN
&& q
!= -ESRCH
&& q
!= -ENOENT
)
3717 static const char* const service_state_table
[_SERVICE_STATE_MAX
] = {
3718 [SERVICE_DEAD
] = "dead",
3719 [SERVICE_START_PRE
] = "start-pre",
3720 [SERVICE_START
] = "start",
3721 [SERVICE_START_POST
] = "start-post",
3722 [SERVICE_RUNNING
] = "running",
3723 [SERVICE_EXITED
] = "exited",
3724 [SERVICE_RELOAD
] = "reload",
3725 [SERVICE_STOP
] = "stop",
3726 [SERVICE_STOP_SIGTERM
] = "stop-sigterm",
3727 [SERVICE_STOP_SIGKILL
] = "stop-sigkill",
3728 [SERVICE_STOP_POST
] = "stop-post",
3729 [SERVICE_FINAL_SIGTERM
] = "final-sigterm",
3730 [SERVICE_FINAL_SIGKILL
] = "final-sigkill",
3731 [SERVICE_FAILED
] = "failed",
3732 [SERVICE_AUTO_RESTART
] = "auto-restart",
3735 DEFINE_STRING_TABLE_LOOKUP(service_state
, ServiceState
);
3737 static const char* const service_restart_table
[_SERVICE_RESTART_MAX
] = {
3738 [SERVICE_RESTART_NO
] = "no",
3739 [SERVICE_RESTART_ON_SUCCESS
] = "on-success",
3740 [SERVICE_RESTART_ON_FAILURE
] = "on-failure",
3741 [SERVICE_RESTART_ON_ABORT
] = "on-abort",
3742 [SERVICE_RESTART_ALWAYS
] = "always"
3745 DEFINE_STRING_TABLE_LOOKUP(service_restart
, ServiceRestart
);
3747 static const char* const service_type_table
[_SERVICE_TYPE_MAX
] = {
3748 [SERVICE_SIMPLE
] = "simple",
3749 [SERVICE_FORKING
] = "forking",
3750 [SERVICE_ONESHOT
] = "oneshot",
3751 [SERVICE_DBUS
] = "dbus",
3752 [SERVICE_NOTIFY
] = "notify",
3753 [SERVICE_IDLE
] = "idle"
3756 DEFINE_STRING_TABLE_LOOKUP(service_type
, ServiceType
);
3758 static const char* const service_exec_command_table
[_SERVICE_EXEC_COMMAND_MAX
] = {
3759 [SERVICE_EXEC_START_PRE
] = "ExecStartPre",
3760 [SERVICE_EXEC_START
] = "ExecStart",
3761 [SERVICE_EXEC_START_POST
] = "ExecStartPost",
3762 [SERVICE_EXEC_RELOAD
] = "ExecReload",
3763 [SERVICE_EXEC_STOP
] = "ExecStop",
3764 [SERVICE_EXEC_STOP_POST
] = "ExecStopPost",
3767 DEFINE_STRING_TABLE_LOOKUP(service_exec_command
, ServiceExecCommand
);
3769 static const char* const notify_access_table
[_NOTIFY_ACCESS_MAX
] = {
3770 [NOTIFY_NONE
] = "none",
3771 [NOTIFY_MAIN
] = "main",
3772 [NOTIFY_ALL
] = "all"
3775 DEFINE_STRING_TABLE_LOOKUP(notify_access
, NotifyAccess
);
3777 static const char* const service_result_table
[_SERVICE_RESULT_MAX
] = {
3778 [SERVICE_SUCCESS
] = "success",
3779 [SERVICE_FAILURE_RESOURCES
] = "resources",
3780 [SERVICE_FAILURE_TIMEOUT
] = "timeout",
3781 [SERVICE_FAILURE_EXIT_CODE
] = "exit-code",
3782 [SERVICE_FAILURE_SIGNAL
] = "signal",
3783 [SERVICE_FAILURE_CORE_DUMP
] = "core-dump",
3784 [SERVICE_FAILURE_WATCHDOG
] = "watchdog"
3787 DEFINE_STRING_TABLE_LOOKUP(service_result
, ServiceResult
);
3789 static const char* const start_limit_action_table
[_SERVICE_START_LIMIT_MAX
] = {
3790 [SERVICE_START_LIMIT_NONE
] = "none",
3791 [SERVICE_START_LIMIT_REBOOT
] = "reboot",
3792 [SERVICE_START_LIMIT_REBOOT_FORCE
] = "reboot-force",
3793 [SERVICE_START_LIMIT_REBOOT_IMMEDIATE
] = "reboot-immediate"
3795 DEFINE_STRING_TABLE_LOOKUP(start_limit_action
, StartLimitAction
);
3797 const UnitVTable service_vtable
= {
3798 .suffix
= ".service",
3799 .object_size
= sizeof(Service
),
3805 .init
= service_init
,
3806 .done
= service_done
,
3807 .load
= service_load
,
3809 .coldplug
= service_coldplug
,
3811 .dump
= service_dump
,
3813 .start
= service_start
,
3814 .stop
= service_stop
,
3815 .reload
= service_reload
,
3817 .can_reload
= service_can_reload
,
3819 .kill
= service_kill
,
3821 .serialize
= service_serialize
,
3822 .deserialize_item
= service_deserialize_item
,
3824 .active_state
= service_active_state
,
3825 .sub_state_to_string
= service_sub_state_to_string
,
3827 .check_gc
= service_check_gc
,
3828 .check_snapshot
= service_check_snapshot
,
3830 .sigchld_event
= service_sigchld_event
,
3831 .timer_event
= service_timer_event
,
3832 .fd_event
= service_fd_event
,
3834 .reset_failed
= service_reset_failed
,
3836 .cgroup_notify_empty
= service_cgroup_notify_event
,
3837 .notify_message
= service_notify_message
,
3839 .bus_name_owner_change
= service_bus_name_owner_change
,
3840 .bus_query_pid_done
= service_bus_query_pid_done
,
3842 .bus_interface
= "org.freedesktop.systemd1.Service",
3843 .bus_message_handler
= bus_service_message_handler
,
3844 .bus_invalidating_properties
= bus_service_invalidating_properties
,
3846 #ifdef HAVE_SYSV_COMPAT
3847 .enumerate
= service_enumerate
,
3849 .status_message_formats
= {
3850 .starting_stopping
= {
3851 [0] = "Starting %s...",
3852 [1] = "Stopping %s...",
3854 .finished_start_job
= {
3855 [JOB_DONE
] = "Started %s.",
3856 [JOB_FAILED
] = "Failed to start %s.",
3857 [JOB_DEPENDENCY
] = "Dependency failed for %s.",
3858 [JOB_TIMEOUT
] = "Timed out starting %s.",
3860 .finished_stop_job
= {
3861 [JOB_DONE
] = "Stopped %s.",
3862 [JOB_FAILED
] = "Stopped (with error) %s.",
3863 [JOB_TIMEOUT
] = "Timed out stopping %s.",