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 General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
29 #include "load-fragment.h"
30 #include "load-dropin.h"
33 #include "unit-name.h"
34 #include "dbus-service.h"
36 #include "bus-errors.h"
38 #define COMMENTS "#;\n"
39 #define NEWLINES "\n\r"
41 #ifdef HAVE_SYSV_COMPAT
42 typedef enum RunlevelType
{
51 const RunlevelType type
;
53 /* Standard SysV runlevels for start-up */
54 { "rc1.d", SPECIAL_RESCUE_TARGET
, RUNLEVEL_UP
},
55 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET
, RUNLEVEL_UP
},
56 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET
, RUNLEVEL_UP
},
57 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET
, RUNLEVEL_UP
},
58 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET
, RUNLEVEL_UP
},
61 /* SUSE style boot.d */
62 { "boot.d", SPECIAL_SYSINIT_TARGET
, RUNLEVEL_SYSINIT
},
66 /* Debian style rcS.d */
67 { "rcS.d", SPECIAL_SYSINIT_TARGET
, RUNLEVEL_SYSINIT
},
70 /* Standard SysV runlevels for shutdown */
71 { "rc0.d", SPECIAL_POWEROFF_TARGET
, RUNLEVEL_DOWN
},
72 { "rc6.d", SPECIAL_REBOOT_TARGET
, RUNLEVEL_DOWN
}
74 /* Note that the order here matters, as we read the
75 directories in this order, and we want to make sure that
76 sysv_start_priority is known when we first load the
77 unit. And that value we only know from S links. Hence
78 UP/SYSINIT must be read before DOWN */
81 #define RUNLEVELS_UP "12345"
82 /* #define RUNLEVELS_DOWN "06" */
83 /* #define RUNLEVELS_BOOT "bBsS" */
86 static const UnitActiveState state_translation_table
[_SERVICE_STATE_MAX
] = {
87 [SERVICE_DEAD
] = UNIT_INACTIVE
,
88 [SERVICE_START_PRE
] = UNIT_ACTIVATING
,
89 [SERVICE_START
] = UNIT_ACTIVATING
,
90 [SERVICE_START_POST
] = UNIT_ACTIVATING
,
91 [SERVICE_RUNNING
] = UNIT_ACTIVE
,
92 [SERVICE_EXITED
] = UNIT_ACTIVE
,
93 [SERVICE_RELOAD
] = UNIT_RELOADING
,
94 [SERVICE_STOP
] = UNIT_DEACTIVATING
,
95 [SERVICE_STOP_SIGTERM
] = UNIT_DEACTIVATING
,
96 [SERVICE_STOP_SIGKILL
] = UNIT_DEACTIVATING
,
97 [SERVICE_STOP_POST
] = UNIT_DEACTIVATING
,
98 [SERVICE_FINAL_SIGTERM
] = UNIT_DEACTIVATING
,
99 [SERVICE_FINAL_SIGKILL
] = UNIT_DEACTIVATING
,
100 [SERVICE_FAILED
] = UNIT_FAILED
,
101 [SERVICE_AUTO_RESTART
] = UNIT_ACTIVATING
104 static void service_init(Unit
*u
) {
105 Service
*s
= SERVICE(u
);
108 assert(u
->meta
.load_state
== UNIT_STUB
);
110 s
->timeout_usec
= DEFAULT_TIMEOUT_USEC
;
111 s
->restart_usec
= DEFAULT_RESTART_USEC
;
112 s
->timer_watch
.type
= WATCH_INVALID
;
113 #ifdef HAVE_SYSV_COMPAT
114 s
->sysv_start_priority
= -1;
118 exec_context_init(&s
->exec_context
);
120 RATELIMIT_INIT(s
->ratelimit
, 10*USEC_PER_SEC
, 5);
122 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
125 static void service_unwatch_control_pid(Service
*s
) {
128 if (s
->control_pid
<= 0)
131 unit_unwatch_pid(UNIT(s
), s
->control_pid
);
135 static void service_unwatch_main_pid(Service
*s
) {
138 if (s
->main_pid
<= 0)
141 unit_unwatch_pid(UNIT(s
), s
->main_pid
);
145 static int service_set_main_pid(Service
*s
, pid_t pid
) {
156 if (get_parent_of_pid(pid
, &ppid
) >= 0 && ppid
!= getpid())
157 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
158 s
->meta
.id
, (unsigned long) pid
);
161 s
->main_pid_known
= true;
163 exec_status_start(&s
->main_exec_status
, pid
);
168 static void service_close_socket_fd(Service
*s
) {
171 if (s
->socket_fd
< 0)
174 close_nointr_nofail(s
->socket_fd
);
178 static void service_connection_unref(Service
*s
) {
184 socket_connection_unref(s
->socket
);
188 static void service_done(Unit
*u
) {
189 Service
*s
= SERVICE(u
);
196 #ifdef HAVE_SYSV_COMPAT
200 free(s
->sysv_runlevels
);
201 s
->sysv_runlevels
= NULL
;
204 free(s
->status_text
);
205 s
->status_text
= NULL
;
207 exec_context_done(&s
->exec_context
);
208 exec_command_free_array(s
->exec_command
, _SERVICE_EXEC_COMMAND_MAX
);
209 s
->control_command
= NULL
;
211 /* This will leak a process, but at least no memory or any of
213 service_unwatch_main_pid(s
);
214 service_unwatch_control_pid(s
);
217 unit_unwatch_bus_name(UNIT(u
), s
->bus_name
);
222 service_close_socket_fd(s
);
223 service_connection_unref(s
);
225 unit_unwatch_timer(u
, &s
->timer_watch
);
228 #ifdef HAVE_SYSV_COMPAT
229 static char *sysv_translate_name(const char *name
) {
232 if (!(r
= new(char, strlen(name
) + sizeof(".service"))))
235 if (startswith(name
, "boot."))
236 /* Drop SuSE-style boot. prefix */
237 strcpy(stpcpy(r
, name
+ 5), ".service");
238 else if (endswith(name
, ".sh"))
239 /* Drop Debian-style .sh suffix */
240 strcpy(stpcpy(r
, name
) - 3, ".service");
242 else if (startswith(name
, "@"))
243 /* Drop Arch-style background prefix */
244 strcpy(stpcpy(r
, name
+ 1), ".service");
247 /* Normal init scripts */
248 strcpy(stpcpy(r
, name
), ".service");
253 static int sysv_translate_facility(const char *name
, char **_r
) {
255 /* We silently ignore the $ prefix here. According to the LSB
256 * spec it simply indicates whether something is a
257 * standardized name or a distribution-specific one. Since we
258 * just follow what already exists and do not introduce new
259 * uses or names we don't care who introduced a new name. */
261 static const char * const table
[] = {
262 /* LSB defined facilities */
263 "local_fs", SPECIAL_LOCAL_FS_TARGET
,
264 "network", SPECIAL_NETWORK_TARGET
,
265 "named", SPECIAL_NSS_LOOKUP_TARGET
,
266 "portmap", SPECIAL_RPCBIND_TARGET
,
267 "remote_fs", SPECIAL_REMOTE_FS_TARGET
,
268 "syslog", SPECIAL_SYSLOG_TARGET
,
269 "time", SPECIAL_RTC_SET_TARGET
,
271 /* Debian extensions */
273 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
275 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
276 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE
,
279 /* Fedora extensions */
280 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
281 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
282 "httpd", SPECIAL_HTTP_DAEMON_TARGET
,
285 /* SuSE extensions */
293 for (i
= 0; i
< ELEMENTSOF(table
); i
+= 2)
295 if (streq(table
[i
], name
) ||
296 (*name
== '$' && streq(table
[i
], name
+1))) {
301 if (!(r
= strdup(table
[i
+1])))
307 /* If we don't know this name, fallback heuristics to figure
308 * out whether something is a target or an service alias. */
311 r
= unit_name_build(name
+1, NULL
, ".target");
313 r
= sysv_translate_name(name
);
326 static int sysv_fix_order(Service
*s
) {
332 if (s
->sysv_start_priority
< 0)
335 /* For each pair of services where at least one lacks a LSB
336 * header, we use the start priority value to order things. */
338 LIST_FOREACH(units_per_type
, other
, s
->meta
.manager
->units_per_type
[UNIT_SERVICE
]) {
341 bool special_s
, special_t
;
343 t
= (Service
*) other
;
348 if (t
->meta
.load_state
!= UNIT_LOADED
)
351 if (t
->sysv_start_priority
< 0)
354 /* If both units have modern headers we don't care
355 * about the priorities */
356 if ((s
->meta
.fragment_path
|| s
->sysv_has_lsb
) &&
357 (t
->meta
.fragment_path
|| t
->sysv_has_lsb
))
360 special_s
= s
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, s
->sysv_runlevels
);
361 special_t
= t
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, t
->sysv_runlevels
);
363 if (special_t
&& !special_s
)
365 else if (special_s
&& !special_t
)
367 else if (t
->sysv_start_priority
< s
->sysv_start_priority
)
369 else if (t
->sysv_start_priority
> s
->sysv_start_priority
)
374 /* FIXME: Maybe we should compare the name here lexicographically? */
376 if (!(r
= unit_add_dependency(UNIT(s
), d
, UNIT(t
), true)) < 0)
383 static ExecCommand
*exec_command_new(const char *path
, const char *arg1
) {
386 if (!(c
= new0(ExecCommand
, 1)))
389 if (!(c
->path
= strdup(path
))) {
394 if (!(c
->argv
= strv_new(path
, arg1
, NULL
))) {
403 static int sysv_exec_commands(Service
*s
) {
407 assert(s
->sysv_path
);
409 if (!(c
= exec_command_new(s
->sysv_path
, "start")))
411 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_START
, c
);
413 if (!(c
= exec_command_new(s
->sysv_path
, "stop")))
415 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_STOP
, c
);
417 if (!(c
= exec_command_new(s
->sysv_path
, "reload")))
419 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_RELOAD
, c
);
424 static int service_load_sysv_path(Service
*s
, const char *path
) {
441 if (!(f
= fopen(path
, "re"))) {
442 r
= errno
== ENOENT
? 0 : -errno
;
447 if (!(s
->sysv_path
= strdup(path
))) {
453 char l
[LINE_MAX
], *t
;
455 if (!fgets(l
, sizeof(l
), f
)) {
460 log_error("Failed to read configuration file '%s': %s", path
, strerror(-r
));
470 if (state
== NORMAL
&& streq(t
, "### BEGIN INIT INFO")) {
472 s
->sysv_has_lsb
= true;
476 if ((state
== LSB_DESCRIPTION
|| state
== LSB
) && streq(t
, "### END INIT INFO")) {
482 t
+= strspn(t
, WHITESPACE
);
484 if (state
== NORMAL
) {
486 /* Try to parse Red Hat style chkconfig headers */
488 if (startswith_no_case(t
, "chkconfig:")) {
490 char runlevels
[16], *k
;
494 if (sscanf(t
+10, "%15s %i %*i",
496 &start_priority
) != 2) {
498 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path
, line
);
502 /* A start priority gathered from the
503 * symlink farms is preferred over the
504 * data from the LSB header. */
505 if (start_priority
< 0 || start_priority
> 99)
506 log_warning("[%s:%u] Start priority out of range. Ignoring.", path
, line
);
507 else if (s
->sysv_start_priority
< 0)
508 s
->sysv_start_priority
= start_priority
;
510 char_array_0(runlevels
);
511 k
= delete_chars(runlevels
, WHITESPACE
"-");
516 if (!(d
= strdup(k
))) {
521 free(s
->sysv_runlevels
);
522 s
->sysv_runlevels
= d
;
525 } else if (startswith_no_case(t
, "description:") &&
526 !u
->meta
.description
) {
528 size_t k
= strlen(t
);
531 if (t
[k
-1] == '\\') {
536 if (!(d
= strappend("LSB: ", strstrip(t
+12)))) {
541 free(u
->meta
.description
);
542 u
->meta
.description
= d
;
544 } else if (startswith_no_case(t
, "pidfile:")) {
551 if (!path_is_absolute(fn
)) {
552 log_warning("[%s:%u] PID file not absolute. Ignoring.", path
, line
);
556 if (!(fn
= strdup(fn
))) {
565 } else if (state
== DESCRIPTION
) {
567 /* Try to parse Red Hat style description
570 size_t k
= strlen(t
);
578 assert(u
->meta
.description
);
579 if (asprintf(&d
, "%s %s", u
->meta
.description
, strstrip(t
)) < 0) {
584 free(u
->meta
.description
);
585 u
->meta
.description
= d
;
587 } else if (state
== LSB
|| state
== LSB_DESCRIPTION
) {
589 if (startswith_no_case(t
, "Provides:")) {
595 FOREACH_WORD_QUOTED(w
, z
, t
+9, i
) {
598 if (!(n
= strndup(w
, z
))) {
603 if (streq(n
, file_name_from_path(path
))) {
608 r
= sysv_translate_facility(n
, &m
);
617 if (unit_name_to_type(m
) == UNIT_SERVICE
)
618 r
= unit_add_name(u
, m
);
620 r
= unit_add_dependency_by_name(u
, UNIT_BEFORE
, m
, NULL
, true);
622 if (s
->sysv_enabled
) {
625 if ((k
= unit_add_dependency_by_name_inverse(u
, UNIT_WANTS
, m
, NULL
, true)) < 0)
631 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path
, line
, m
, strerror(-r
));
636 } else if (startswith_no_case(t
, "Required-Start:") ||
637 startswith_no_case(t
, "Should-Start:") ||
638 startswith_no_case(t
, "X-Start-Before:") ||
639 startswith_no_case(t
, "X-Start-After:")) {
645 FOREACH_WORD_QUOTED(w
, z
, strchr(t
, ':')+1, i
) {
648 if (!(n
= strndup(w
, z
))) {
653 if (streq(n
, file_name_from_path(path
))) {
658 r
= sysv_translate_facility(n
, &m
);
667 r
= unit_add_dependency_by_name(u
, startswith_no_case(t
, "X-Start-Before:") ? UNIT_BEFORE
: UNIT_AFTER
, m
, NULL
, true);
670 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path
, line
, m
, strerror(-r
));
674 } else if (startswith_no_case(t
, "Default-Start:")) {
679 k
= delete_chars(t
+14, WHITESPACE
"-");
682 if (!(d
= strdup(k
))) {
687 free(s
->sysv_runlevels
);
688 s
->sysv_runlevels
= d
;
691 } else if (startswith_no_case(t
, "Description:") &&
692 !u
->meta
.description
) {
695 /* We use the long description only if
696 * no short description is set. */
698 state
= LSB_DESCRIPTION
;
700 if (!(d
= strappend("LSB: ", strstrip(t
+12)))) {
705 free(u
->meta
.description
);
706 u
->meta
.description
= d
;
708 } else if (startswith_no_case(t
, "Short-Description:")) {
713 if (!(d
= strappend("LSB: ", strstrip(t
+18)))) {
718 free(u
->meta
.description
);
719 u
->meta
.description
= d
;
721 } else if (startswith_no_case(t
, "X-Interactive:")) {
724 if ((b
= parse_boolean(strstrip(t
+14))) < 0) {
725 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path
, line
);
730 s
->exec_context
.std_input
= EXEC_INPUT_TTY
;
732 s
->exec_context
.std_input
= EXEC_INPUT_NULL
;
734 } else if (state
== LSB_DESCRIPTION
) {
736 if (startswith(l
, "#\t") || startswith(l
, "# ")) {
739 assert(u
->meta
.description
);
740 if (asprintf(&d
, "%s %s", u
->meta
.description
, t
) < 0) {
745 free(u
->meta
.description
);
746 u
->meta
.description
= d
;
753 if ((r
= sysv_exec_commands(s
)) < 0)
756 if (s
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, s
->sysv_runlevels
)) {
757 /* If there a runlevels configured for this service
758 * but none of the standard ones, then we assume this
759 * is some special kind of service (which might be
760 * needed for early boot) and don't create any links
763 s
->meta
.default_dependencies
= false;
765 /* Don't timeout special services during boot (like fsck) */
769 /* Special setting for all SysV services */
770 s
->type
= SERVICE_FORKING
;
771 s
->remain_after_exit
= true;
772 s
->restart
= SERVICE_ONCE
;
773 s
->exec_context
.std_output
=
774 (s
->meta
.manager
->sysv_console
|| s
->exec_context
.std_input
== EXEC_INPUT_TTY
)
775 ? EXEC_OUTPUT_TTY
: EXEC_OUTPUT_NULL
;
776 s
->exec_context
.kill_mode
= KILL_PROCESS_GROUP
;
778 u
->meta
.load_state
= UNIT_LOADED
;
789 static int service_load_sysv_name(Service
*s
, const char *name
) {
795 /* For SysV services we strip the boot. or .sh
796 * prefixes/suffixes. */
797 if (startswith(name
, "boot.") ||
798 endswith(name
, ".sh.service"))
801 STRV_FOREACH(p
, s
->meta
.manager
->lookup_paths
.sysvinit_path
) {
805 if (asprintf(&path
, "%s/%s", *p
, name
) < 0)
808 assert(endswith(path
, ".service"));
809 path
[strlen(path
)-8] = 0;
811 r
= service_load_sysv_path(s
, path
);
813 if (r
>= 0 && s
->meta
.load_state
== UNIT_STUB
) {
814 /* Try Debian style xxx.sh source'able init scripts */
816 r
= service_load_sysv_path(s
, path
);
821 if (r
>= 0 && s
->meta
.load_state
== UNIT_STUB
) {
822 /* Try SUSE style boot.xxx init scripts */
824 if (asprintf(&path
, "%s/boot.%s", *p
, name
) < 0)
827 path
[strlen(path
)-8] = 0;
828 r
= service_load_sysv_path(s
, path
);
835 if ((s
->meta
.load_state
!= UNIT_STUB
))
842 static int service_load_sysv(Service
*s
) {
849 /* Load service data from SysV init scripts, preferably with
852 if (strv_isempty(s
->meta
.manager
->lookup_paths
.sysvinit_path
))
855 if ((t
= s
->meta
.id
))
856 if ((r
= service_load_sysv_name(s
, t
)) < 0)
859 if (s
->meta
.load_state
== UNIT_STUB
)
860 SET_FOREACH(t
, s
->meta
.names
, i
) {
864 if ((r
= service_load_sysv_name(s
, t
)) < 0)
867 if (s
->meta
.load_state
!= UNIT_STUB
)
875 static int service_verify(Service
*s
) {
878 if (s
->meta
.load_state
!= UNIT_LOADED
)
881 if (!s
->exec_command
[SERVICE_EXEC_START
]) {
882 log_error("%s lacks ExecStart setting. Refusing.", s
->meta
.id
);
886 if (s
->type
!= SERVICE_ONESHOT
&&
887 s
->exec_command
[SERVICE_EXEC_START
]->command_next
) {
888 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s
->meta
.id
);
892 if (s
->type
== SERVICE_DBUS
&& !s
->bus_name
) {
893 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s
->meta
.id
);
897 if (s
->exec_context
.pam_name
&& s
->exec_context
.kill_mode
!= KILL_CONTROL_GROUP
) {
898 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s
->meta
.id
);
905 static int service_add_default_dependencies(Service
*s
) {
910 /* Add a number of automatic dependencies useful for the
911 * majority of services. */
913 /* First, pull in base system */
914 if (s
->meta
.manager
->running_as
== MANAGER_SYSTEM
) {
916 if ((r
= unit_add_two_dependencies_by_name(UNIT(s
), UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_BASIC_TARGET
, NULL
, true)) < 0)
919 } else if (s
->meta
.manager
->running_as
== MANAGER_SESSION
) {
921 if ((r
= unit_add_two_dependencies_by_name(UNIT(s
), UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_SOCKETS_TARGET
, NULL
, true)) < 0)
925 /* Second, activate normal shutdown */
926 return unit_add_two_dependencies_by_name(UNIT(s
), UNIT_BEFORE
, UNIT_CONFLICTED_BY
, SPECIAL_SHUTDOWN_TARGET
, NULL
, true);
929 static int service_load(Unit
*u
) {
931 Service
*s
= SERVICE(u
);
935 /* Load a .service file */
936 if ((r
= unit_load_fragment(u
)) < 0)
939 #ifdef HAVE_SYSV_COMPAT
940 /* Load a classic init script as a fallback, if we couldn't find anything */
941 if (u
->meta
.load_state
== UNIT_STUB
)
942 if ((r
= service_load_sysv(s
)) < 0)
946 /* Still nothing found? Then let's give up */
947 if (u
->meta
.load_state
== UNIT_STUB
)
950 /* We were able to load something, then let's add in the
951 * dropin directories. */
952 if ((r
= unit_load_dropin(unit_follow_merge(u
))) < 0)
955 /* This is a new unit? Then let's add in some extras */
956 if (u
->meta
.load_state
== UNIT_LOADED
) {
957 if ((r
= unit_add_exec_dependencies(u
, &s
->exec_context
)) < 0)
960 if ((r
= unit_add_default_cgroup(u
)) < 0)
963 #ifdef HAVE_SYSV_COMPAT
964 if ((r
= sysv_fix_order(s
)) < 0)
969 if ((r
= unit_watch_bus_name(u
, s
->bus_name
)) < 0)
972 if (s
->type
== SERVICE_NOTIFY
&& s
->notify_access
== NOTIFY_NONE
)
973 s
->notify_access
= NOTIFY_MAIN
;
975 if (s
->type
== SERVICE_DBUS
|| s
->bus_name
)
976 if ((r
= unit_add_two_dependencies_by_name(u
, UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_DBUS_TARGET
, NULL
, true)) < 0)
979 if (s
->meta
.default_dependencies
)
980 if ((r
= service_add_default_dependencies(s
)) < 0)
984 return service_verify(s
);
987 static void service_dump(Unit
*u
, FILE *f
, const char *prefix
) {
989 ServiceExecCommand c
;
990 Service
*s
= SERVICE(u
);
996 p2
= strappend(prefix
, "\t");
997 prefix2
= p2
? p2
: prefix
;
1000 "%sService State: %s\n"
1001 "%sPermissionsStartOnly: %s\n"
1002 "%sRootDirectoryStartOnly: %s\n"
1003 "%sRemainAfterExit: %s\n"
1006 "%sNotifyAccess: %s\n",
1007 prefix
, service_state_to_string(s
->state
),
1008 prefix
, yes_no(s
->permissions_start_only
),
1009 prefix
, yes_no(s
->root_directory_start_only
),
1010 prefix
, yes_no(s
->remain_after_exit
),
1011 prefix
, service_type_to_string(s
->type
),
1012 prefix
, service_restart_to_string(s
->restart
),
1013 prefix
, notify_access_to_string(s
->notify_access
));
1015 if (s
->control_pid
> 0)
1017 "%sControl PID: %lu\n",
1018 prefix
, (unsigned long) s
->control_pid
);
1020 if (s
->main_pid
> 0)
1022 "%sMain PID: %lu\n",
1023 prefix
, (unsigned long) s
->main_pid
);
1028 prefix
, s
->pid_file
);
1033 "%sBus Name Good: %s\n",
1034 prefix
, s
->bus_name
,
1035 prefix
, yes_no(s
->bus_name_good
));
1037 exec_context_dump(&s
->exec_context
, f
, prefix
);
1039 for (c
= 0; c
< _SERVICE_EXEC_COMMAND_MAX
; c
++) {
1041 if (!s
->exec_command
[c
])
1044 fprintf(f
, "%s-> %s:\n",
1045 prefix
, service_exec_command_to_string(c
));
1047 exec_command_dump_list(s
->exec_command
[c
], f
, prefix2
);
1050 #ifdef HAVE_SYSV_COMPAT
1053 "%sSysV Init Script Path: %s\n"
1054 "%sSysV Init Script has LSB Header: %s\n",
1055 prefix
, s
->sysv_path
,
1056 prefix
, yes_no(s
->sysv_has_lsb
));
1058 if (s
->sysv_start_priority
>= 0)
1060 "%sSysVStartPriority: %i\n"
1061 "%sSysVEnabled: %s\n",
1062 prefix
, s
->sysv_start_priority
,
1063 prefix
, yes_no(s
->sysv_enabled
));
1065 if (s
->sysv_runlevels
)
1066 fprintf(f
, "%sSysVRunLevels: %s\n",
1067 prefix
, s
->sysv_runlevels
);
1071 fprintf(f
, "%sStatus Text: %s\n",
1072 prefix
, s
->status_text
);
1077 static int service_load_pid_file(Service
*s
) {
1084 if (s
->main_pid_known
)
1087 assert(s
->main_pid
<= 0);
1092 if ((r
= read_one_line_file(s
->pid_file
, &k
)) < 0)
1095 r
= parse_pid(k
, &pid
);
1101 if (kill(pid
, 0) < 0 && errno
!= EPERM
) {
1102 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1103 (unsigned long) pid
, s
->pid_file
);
1107 if ((r
= service_set_main_pid(s
, pid
)) < 0)
1110 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1111 /* FIXME: we need to do something here */
1117 static int service_get_sockets(Service
*s
, Set
**_set
) {
1126 if (s
->socket_fd
>= 0)
1129 /* Collects all Socket objects that belong to this
1130 * service. Note that a service might have multiple sockets
1131 * via multiple names. */
1133 if (!(set
= set_new(NULL
, NULL
)))
1136 SET_FOREACH(t
, s
->meta
.names
, i
) {
1140 /* Look for all socket objects that go by any of our
1141 * units and collect their fds */
1143 if (!(k
= unit_name_change_suffix(t
, ".socket"))) {
1148 p
= manager_get_unit(s
->meta
.manager
, k
);
1154 if ((r
= set_put(set
, p
)) < 0)
1166 static int service_notify_sockets_dead(Service
*s
) {
1174 if (s
->socket_fd
>= 0)
1177 /* Notifies all our sockets when we die */
1178 if ((r
= service_get_sockets(s
, &set
)) < 0)
1181 SET_FOREACH(sock
, set
, i
)
1182 socket_notify_service_dead(sock
);
1189 static void service_set_state(Service
*s
, ServiceState state
) {
1190 ServiceState old_state
;
1193 old_state
= s
->state
;
1196 if (state
!= SERVICE_START_PRE
&&
1197 state
!= SERVICE_START
&&
1198 state
!= SERVICE_START_POST
&&
1199 state
!= SERVICE_RELOAD
&&
1200 state
!= SERVICE_STOP
&&
1201 state
!= SERVICE_STOP_SIGTERM
&&
1202 state
!= SERVICE_STOP_SIGKILL
&&
1203 state
!= SERVICE_STOP_POST
&&
1204 state
!= SERVICE_FINAL_SIGTERM
&&
1205 state
!= SERVICE_FINAL_SIGKILL
&&
1206 state
!= SERVICE_AUTO_RESTART
)
1207 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1209 if (state
!= SERVICE_START
&&
1210 state
!= SERVICE_START_POST
&&
1211 state
!= SERVICE_RUNNING
&&
1212 state
!= SERVICE_RELOAD
&&
1213 state
!= SERVICE_STOP
&&
1214 state
!= SERVICE_STOP_SIGTERM
&&
1215 state
!= SERVICE_STOP_SIGKILL
)
1216 service_unwatch_main_pid(s
);
1218 if (state
!= SERVICE_START_PRE
&&
1219 state
!= SERVICE_START
&&
1220 state
!= SERVICE_START_POST
&&
1221 state
!= SERVICE_RELOAD
&&
1222 state
!= SERVICE_STOP
&&
1223 state
!= SERVICE_STOP_SIGTERM
&&
1224 state
!= SERVICE_STOP_SIGKILL
&&
1225 state
!= SERVICE_STOP_POST
&&
1226 state
!= SERVICE_FINAL_SIGTERM
&&
1227 state
!= SERVICE_FINAL_SIGKILL
) {
1228 service_unwatch_control_pid(s
);
1229 s
->control_command
= NULL
;
1230 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
1233 if (state
== SERVICE_DEAD
||
1234 state
== SERVICE_STOP
||
1235 state
== SERVICE_STOP_SIGTERM
||
1236 state
== SERVICE_STOP_SIGKILL
||
1237 state
== SERVICE_STOP_POST
||
1238 state
== SERVICE_FINAL_SIGTERM
||
1239 state
== SERVICE_FINAL_SIGKILL
||
1240 state
== SERVICE_FAILED
||
1241 state
== SERVICE_AUTO_RESTART
)
1242 service_notify_sockets_dead(s
);
1244 if (state
!= SERVICE_START_PRE
&&
1245 state
!= SERVICE_START
&&
1246 state
!= SERVICE_START_POST
&&
1247 state
!= SERVICE_RUNNING
&&
1248 state
!= SERVICE_RELOAD
&&
1249 state
!= SERVICE_STOP
&&
1250 state
!= SERVICE_STOP_SIGTERM
&&
1251 state
!= SERVICE_STOP_SIGKILL
&&
1252 state
!= SERVICE_STOP_POST
&&
1253 state
!= SERVICE_FINAL_SIGTERM
&&
1254 state
!= SERVICE_FINAL_SIGKILL
&&
1255 !(state
== SERVICE_DEAD
&& s
->meta
.job
)) {
1256 service_close_socket_fd(s
);
1257 service_connection_unref(s
);
1260 /* For the inactive states unit_notify() will trim the cgroup,
1261 * but for exit we have to do that ourselves... */
1262 if (state
== SERVICE_EXITED
)
1263 cgroup_bonding_trim_list(s
->meta
.cgroup_bondings
, true);
1265 if (old_state
!= state
)
1266 log_debug("%s changed %s -> %s", s
->meta
.id
, service_state_to_string(old_state
), service_state_to_string(state
));
1268 unit_notify(UNIT(s
), state_translation_table
[old_state
], state_translation_table
[state
]);
1271 static int service_coldplug(Unit
*u
) {
1272 Service
*s
= SERVICE(u
);
1276 assert(s
->state
== SERVICE_DEAD
);
1278 if (s
->deserialized_state
!= s
->state
) {
1280 if (s
->deserialized_state
== SERVICE_START_PRE
||
1281 s
->deserialized_state
== SERVICE_START
||
1282 s
->deserialized_state
== SERVICE_START_POST
||
1283 s
->deserialized_state
== SERVICE_RELOAD
||
1284 s
->deserialized_state
== SERVICE_STOP
||
1285 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1286 s
->deserialized_state
== SERVICE_STOP_SIGKILL
||
1287 s
->deserialized_state
== SERVICE_STOP_POST
||
1288 s
->deserialized_state
== SERVICE_FINAL_SIGTERM
||
1289 s
->deserialized_state
== SERVICE_FINAL_SIGKILL
||
1290 s
->deserialized_state
== SERVICE_AUTO_RESTART
) {
1292 if (s
->deserialized_state
== SERVICE_AUTO_RESTART
|| s
->timeout_usec
> 0) {
1295 k
= s
->deserialized_state
== SERVICE_AUTO_RESTART
? s
->restart_usec
: s
->timeout_usec
;
1297 if ((r
= unit_watch_timer(UNIT(s
), k
, &s
->timer_watch
)) < 0)
1302 if ((s
->deserialized_state
== SERVICE_START
&&
1303 (s
->type
== SERVICE_FORKING
||
1304 s
->type
== SERVICE_DBUS
||
1305 s
->type
== SERVICE_ONESHOT
||
1306 s
->type
== SERVICE_NOTIFY
)) ||
1307 s
->deserialized_state
== SERVICE_START_POST
||
1308 s
->deserialized_state
== SERVICE_RUNNING
||
1309 s
->deserialized_state
== SERVICE_RELOAD
||
1310 s
->deserialized_state
== SERVICE_STOP
||
1311 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1312 s
->deserialized_state
== SERVICE_STOP_SIGKILL
)
1313 if (s
->main_pid
> 0)
1314 if ((r
= unit_watch_pid(UNIT(s
), s
->main_pid
)) < 0)
1317 if (s
->deserialized_state
== SERVICE_START_PRE
||
1318 s
->deserialized_state
== SERVICE_START
||
1319 s
->deserialized_state
== SERVICE_START_POST
||
1320 s
->deserialized_state
== SERVICE_RELOAD
||
1321 s
->deserialized_state
== SERVICE_STOP
||
1322 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1323 s
->deserialized_state
== SERVICE_STOP_SIGKILL
||
1324 s
->deserialized_state
== SERVICE_STOP_POST
||
1325 s
->deserialized_state
== SERVICE_FINAL_SIGTERM
||
1326 s
->deserialized_state
== SERVICE_FINAL_SIGKILL
)
1327 if (s
->control_pid
> 0)
1328 if ((r
= unit_watch_pid(UNIT(s
), s
->control_pid
)) < 0)
1331 service_set_state(s
, s
->deserialized_state
);
1337 static int service_collect_fds(Service
*s
, int **fds
, unsigned *n_fds
) {
1341 unsigned rn_fds
= 0;
1349 if (s
->socket_fd
>= 0)
1352 if ((r
= service_get_sockets(s
, &set
)) < 0)
1355 SET_FOREACH(sock
, set
, i
) {
1359 if ((r
= socket_collect_fds(sock
, &cfds
, &cn_fds
)) < 0)
1371 if (!(t
= new(int, rn_fds
+cn_fds
))) {
1377 memcpy(t
, rfds
, rn_fds
);
1378 memcpy(t
+rn_fds
, cfds
, cn_fds
);
1383 rn_fds
= rn_fds
+cn_fds
;
1401 static int service_spawn(
1406 bool apply_permissions
,
1408 bool apply_tty_stdin
,
1409 bool set_notify_socket
,
1414 int *fds
= NULL
, *fdsbuf
= NULL
;
1415 unsigned n_fds
= 0, n_env
= 0;
1416 char **argv
= NULL
, **final_env
= NULL
, **our_env
= NULL
;
1423 s
->exec_context
.std_input
== EXEC_INPUT_SOCKET
||
1424 s
->exec_context
.std_output
== EXEC_OUTPUT_SOCKET
||
1425 s
->exec_context
.std_error
== EXEC_OUTPUT_SOCKET
) {
1427 if (s
->socket_fd
>= 0) {
1428 fds
= &s
->socket_fd
;
1431 if ((r
= service_collect_fds(s
, &fdsbuf
, &n_fds
)) < 0)
1438 if (timeout
&& s
->timeout_usec
) {
1439 if ((r
= unit_watch_timer(UNIT(s
), s
->timeout_usec
, &s
->timer_watch
)) < 0)
1442 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1444 if (!(argv
= unit_full_printf_strv(UNIT(s
), c
->argv
))) {
1449 if (!(our_env
= new0(char*, 3))) {
1454 if (set_notify_socket
)
1455 if (asprintf(our_env
+ n_env
++, "NOTIFY_SOCKET=@%s", s
->meta
.manager
->notify_socket
) < 0) {
1460 if (s
->main_pid
> 0)
1461 if (asprintf(our_env
+ n_env
++, "MAINPID=%lu", (unsigned long) s
->main_pid
) < 0) {
1466 if (!(final_env
= strv_env_merge(2,
1467 s
->meta
.manager
->environment
,
1482 s
->meta
.manager
->confirm_spawn
,
1483 s
->meta
.cgroup_bondings
,
1490 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1491 /* FIXME: we need to do something here */
1497 strv_free(final_env
);
1507 strv_free(final_env
);
1510 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1515 static int main_pid_good(Service
*s
) {
1518 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1521 /* If we know the pid file, then lets just check if it is
1523 if (s
->main_pid_known
)
1524 return s
->main_pid
> 0;
1526 /* We don't know the pid */
1530 static int control_pid_good(Service
*s
) {
1533 return s
->control_pid
> 0;
1536 static int cgroup_good(Service
*s
) {
1541 if ((r
= cgroup_bonding_is_empty_list(s
->meta
.cgroup_bondings
)) < 0)
1547 static void service_enter_dead(Service
*s
, bool success
, bool allow_restart
) {
1554 if (allow_restart
&&
1555 !s
->forbid_restart
&&
1556 (s
->restart
== SERVICE_RESTART_ALWAYS
||
1557 (s
->restart
== SERVICE_RESTART_ON_SUCCESS
&& !s
->failure
))) {
1559 if ((r
= unit_watch_timer(UNIT(s
), s
->restart_usec
, &s
->timer_watch
)) < 0)
1562 service_set_state(s
, SERVICE_AUTO_RESTART
);
1564 service_set_state(s
, s
->failure
? SERVICE_FAILED
: SERVICE_DEAD
);
1566 s
->forbid_restart
= false;
1571 log_warning("%s failed to run install restart timer: %s", s
->meta
.id
, strerror(-r
));
1572 service_enter_dead(s
, false, false);
1575 static void service_enter_signal(Service
*s
, ServiceState state
, bool success
);
1577 static void service_enter_stop_post(Service
*s
, bool success
) {
1584 service_unwatch_control_pid(s
);
1586 s
->control_command_id
= SERVICE_EXEC_STOP_POST
;
1587 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP_POST
])) {
1588 if ((r
= service_spawn(s
,
1592 !s
->permissions_start_only
,
1593 !s
->root_directory_start_only
,
1596 &s
->control_pid
)) < 0)
1600 service_set_state(s
, SERVICE_STOP_POST
);
1602 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, true);
1607 log_warning("%s failed to run 'stop-post' task: %s", s
->meta
.id
, strerror(-r
));
1608 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1611 static void service_enter_signal(Service
*s
, ServiceState state
, bool success
) {
1613 Set
*pid_set
= NULL
;
1614 bool wait_for_exit
= false;
1621 if (s
->exec_context
.kill_mode
!= KILL_NONE
) {
1622 int sig
= (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_FINAL_SIGTERM
) ? s
->exec_context
.kill_signal
: SIGKILL
;
1624 if (s
->main_pid
> 0) {
1625 if (kill(s
->exec_context
.kill_mode
== KILL_PROCESS_GROUP
?
1627 s
->main_pid
, sig
) < 0 && errno
!= ESRCH
)
1629 log_warning("Failed to kill main process %li: %m", (long) s
->main_pid
);
1631 wait_for_exit
= true;
1634 if (s
->control_pid
> 0) {
1635 if (kill(s
->exec_context
.kill_mode
== KILL_PROCESS_GROUP
?
1637 s
->control_pid
, sig
) < 0 && errno
!= ESRCH
)
1639 log_warning("Failed to kill control process %li: %m", (long) s
->control_pid
);
1641 wait_for_exit
= true;
1644 if (s
->exec_context
.kill_mode
== KILL_CONTROL_GROUP
) {
1646 if (!(pid_set
= set_new(trivial_hash_func
, trivial_compare_func
))) {
1651 /* Exclude the main/control pids from being killed via the cgroup */
1652 if (s
->main_pid
> 0)
1653 if ((r
= set_put(pid_set
, LONG_TO_PTR(s
->main_pid
))) < 0)
1656 if (s
->control_pid
> 0)
1657 if ((r
= set_put(pid_set
, LONG_TO_PTR(s
->control_pid
))) < 0)
1660 if ((r
= cgroup_bonding_kill_list(s
->meta
.cgroup_bondings
, sig
, pid_set
)) < 0) {
1661 if (r
!= -EAGAIN
&& r
!= -ESRCH
&& r
!= -ENOENT
)
1662 log_warning("Failed to kill control group: %s", strerror(-r
));
1664 wait_for_exit
= true;
1670 if (wait_for_exit
) {
1671 if (s
->timeout_usec
> 0)
1672 if ((r
= unit_watch_timer(UNIT(s
), s
->timeout_usec
, &s
->timer_watch
)) < 0)
1675 service_set_state(s
, state
);
1676 } else if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
1677 service_enter_stop_post(s
, true);
1679 service_enter_dead(s
, true, true);
1684 log_warning("%s failed to kill processes: %s", s
->meta
.id
, strerror(-r
));
1686 if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
1687 service_enter_stop_post(s
, false);
1689 service_enter_dead(s
, false, true);
1695 static void service_enter_stop(Service
*s
, bool success
) {
1703 service_unwatch_control_pid(s
);
1705 s
->control_command_id
= SERVICE_EXEC_STOP
;
1706 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP
])) {
1707 if ((r
= service_spawn(s
,
1711 !s
->permissions_start_only
,
1712 !s
->root_directory_start_only
,
1715 &s
->control_pid
)) < 0)
1718 service_set_state(s
, SERVICE_STOP
);
1720 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, true);
1725 log_warning("%s failed to run 'stop' task: %s", s
->meta
.id
, strerror(-r
));
1726 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
1729 static void service_enter_running(Service
*s
, bool success
) {
1730 int main_pid_ok
, cgroup_ok
;
1736 main_pid_ok
= main_pid_good(s
);
1737 cgroup_ok
= cgroup_good(s
);
1739 if ((main_pid_ok
> 0 || (main_pid_ok
< 0 && cgroup_ok
!= 0)) &&
1740 (s
->bus_name_good
|| s
->type
!= SERVICE_DBUS
))
1741 service_set_state(s
, SERVICE_RUNNING
);
1742 else if (s
->remain_after_exit
)
1743 service_set_state(s
, SERVICE_EXITED
);
1745 service_enter_stop(s
, true);
1748 static void service_enter_start_post(Service
*s
) {
1752 service_unwatch_control_pid(s
);
1754 s
->control_command_id
= SERVICE_EXEC_START_POST
;
1755 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_POST
])) {
1756 if ((r
= service_spawn(s
,
1760 !s
->permissions_start_only
,
1761 !s
->root_directory_start_only
,
1764 &s
->control_pid
)) < 0)
1767 service_set_state(s
, SERVICE_START_POST
);
1769 service_enter_running(s
, true);
1774 log_warning("%s failed to run 'start-post' task: %s", s
->meta
.id
, strerror(-r
));
1775 service_enter_stop(s
, false);
1778 static void service_enter_start(Service
*s
) {
1784 assert(s
->exec_command
[SERVICE_EXEC_START
]);
1785 assert(!s
->exec_command
[SERVICE_EXEC_START
]->command_next
|| s
->type
== SERVICE_ONESHOT
);
1787 if (s
->type
== SERVICE_FORKING
)
1788 service_unwatch_control_pid(s
);
1790 service_unwatch_main_pid(s
);
1792 s
->control_command_id
= SERVICE_EXEC_START
;
1793 s
->control_command
= s
->exec_command
[SERVICE_EXEC_START
];
1795 if ((r
= service_spawn(s
,
1797 s
->type
== SERVICE_FORKING
|| s
->type
== SERVICE_DBUS
|| s
->type
== SERVICE_NOTIFY
,
1802 s
->notify_access
!= NOTIFY_NONE
,
1806 if (s
->type
== SERVICE_SIMPLE
) {
1807 /* For simple services we immediately start
1808 * the START_POST binaries. */
1810 service_set_main_pid(s
, pid
);
1811 service_enter_start_post(s
);
1813 } else if (s
->type
== SERVICE_FORKING
) {
1815 /* For forking services we wait until the start
1816 * process exited. */
1818 s
->control_pid
= pid
;
1819 service_set_state(s
, SERVICE_START
);
1821 } else if (s
->type
== SERVICE_ONESHOT
||
1822 s
->type
== SERVICE_DBUS
||
1823 s
->type
== SERVICE_NOTIFY
) {
1825 /* For oneshot services we wait until the start
1826 * process exited, too, but it is our main process. */
1828 /* For D-Bus services we know the main pid right away,
1829 * but wait for the bus name to appear on the
1830 * bus. Notify services are similar. */
1832 service_set_main_pid(s
, pid
);
1833 service_set_state(s
, SERVICE_START
);
1835 assert_not_reached("Unknown service type");
1840 log_warning("%s failed to run 'start' task: %s", s
->meta
.id
, strerror(-r
));
1841 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1844 static void service_enter_start_pre(Service
*s
) {
1849 service_unwatch_control_pid(s
);
1851 s
->control_command_id
= SERVICE_EXEC_START_PRE
;
1852 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_PRE
])) {
1853 if ((r
= service_spawn(s
,
1857 !s
->permissions_start_only
,
1858 !s
->root_directory_start_only
,
1861 &s
->control_pid
)) < 0)
1864 service_set_state(s
, SERVICE_START_PRE
);
1866 service_enter_start(s
);
1871 log_warning("%s failed to run 'start-pre' task: %s", s
->meta
.id
, strerror(-r
));
1872 service_enter_dead(s
, false, true);
1875 static void service_enter_restart(Service
*s
) {
1880 dbus_error_init(&error
);
1882 service_enter_dead(s
, true, false);
1884 if ((r
= manager_add_job(s
->meta
.manager
, JOB_START
, UNIT(s
), JOB_FAIL
, false, &error
, NULL
)) < 0)
1887 log_debug("%s scheduled restart job.", s
->meta
.id
);
1891 log_warning("%s failed to schedule restart job: %s", s
->meta
.id
, bus_error(&error
, -r
));
1892 service_enter_dead(s
, false, false);
1894 dbus_error_free(&error
);
1897 static void service_enter_reload(Service
*s
) {
1902 service_unwatch_control_pid(s
);
1904 s
->control_command_id
= SERVICE_EXEC_RELOAD
;
1905 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_RELOAD
])) {
1906 if ((r
= service_spawn(s
,
1910 !s
->permissions_start_only
,
1911 !s
->root_directory_start_only
,
1914 &s
->control_pid
)) < 0)
1917 service_set_state(s
, SERVICE_RELOAD
);
1919 service_enter_running(s
, true);
1924 log_warning("%s failed to run 'reload' task: %s", s
->meta
.id
, strerror(-r
));
1925 service_enter_stop(s
, false);
1928 static void service_run_next_control(Service
*s
, bool success
) {
1932 assert(s
->control_command
);
1933 assert(s
->control_command
->command_next
);
1938 assert(s
->control_command_id
!= SERVICE_EXEC_START
);
1940 s
->control_command
= s
->control_command
->command_next
;
1941 service_unwatch_control_pid(s
);
1943 if ((r
= service_spawn(s
,
1947 !s
->permissions_start_only
,
1948 !s
->root_directory_start_only
,
1949 s
->control_command_id
== SERVICE_EXEC_START_PRE
||
1950 s
->control_command_id
== SERVICE_EXEC_STOP_POST
,
1952 &s
->control_pid
)) < 0)
1958 log_warning("%s failed to run next control task: %s", s
->meta
.id
, strerror(-r
));
1960 if (s
->state
== SERVICE_START_PRE
)
1961 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1962 else if (s
->state
== SERVICE_STOP
)
1963 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
1964 else if (s
->state
== SERVICE_STOP_POST
)
1965 service_enter_dead(s
, false, true);
1967 service_enter_stop(s
, false);
1970 static void service_run_next_main(Service
*s
, bool success
) {
1975 assert(s
->control_command
);
1976 assert(s
->control_command
->command_next
);
1981 assert(s
->control_command_id
== SERVICE_EXEC_START
);
1982 assert(s
->type
== SERVICE_ONESHOT
);
1984 s
->control_command
= s
->control_command
->command_next
;
1985 service_unwatch_main_pid(s
);
1987 if ((r
= service_spawn(s
,
1994 s
->notify_access
!= NOTIFY_NONE
,
1998 service_set_main_pid(s
, pid
);
2003 log_warning("%s failed to run next main task: %s", s
->meta
.id
, strerror(-r
));
2004 service_enter_stop(s
, false);
2007 static int service_start(Unit
*u
) {
2008 Service
*s
= SERVICE(u
);
2012 /* We cannot fulfill this request right now, try again later
2014 if (s
->state
== SERVICE_STOP
||
2015 s
->state
== SERVICE_STOP_SIGTERM
||
2016 s
->state
== SERVICE_STOP_SIGKILL
||
2017 s
->state
== SERVICE_STOP_POST
||
2018 s
->state
== SERVICE_FINAL_SIGTERM
||
2019 s
->state
== SERVICE_FINAL_SIGKILL
)
2022 /* Already on it! */
2023 if (s
->state
== SERVICE_START_PRE
||
2024 s
->state
== SERVICE_START
||
2025 s
->state
== SERVICE_START_POST
)
2028 assert(s
->state
== SERVICE_DEAD
|| s
->state
== SERVICE_FAILED
|| s
->state
== SERVICE_AUTO_RESTART
);
2030 /* Make sure we don't enter a busy loop of some kind. */
2031 if (!ratelimit_test(&s
->ratelimit
)) {
2032 log_warning("%s start request repeated too quickly, refusing to start.", u
->meta
.id
);
2036 if ((s
->exec_context
.std_input
== EXEC_INPUT_SOCKET
||
2037 s
->exec_context
.std_output
== EXEC_OUTPUT_SOCKET
||
2038 s
->exec_context
.std_error
== EXEC_OUTPUT_SOCKET
) &&
2040 log_warning("%s can only be started with a per-connection socket.", u
->meta
.id
);
2045 s
->main_pid_known
= false;
2046 s
->forbid_restart
= false;
2048 service_enter_start_pre(s
);
2052 static int service_stop(Unit
*u
) {
2053 Service
*s
= SERVICE(u
);
2057 /* This is a user request, so don't do restarts on this
2059 s
->forbid_restart
= true;
2062 if (s
->state
== SERVICE_STOP
||
2063 s
->state
== SERVICE_STOP_SIGTERM
||
2064 s
->state
== SERVICE_STOP_SIGKILL
||
2065 s
->state
== SERVICE_STOP_POST
||
2066 s
->state
== SERVICE_FINAL_SIGTERM
||
2067 s
->state
== SERVICE_FINAL_SIGKILL
)
2070 /* Don't allow a restart */
2071 if (s
->state
== SERVICE_AUTO_RESTART
) {
2072 service_set_state(s
, SERVICE_DEAD
);
2076 /* If there's already something running we go directly into
2078 if (s
->state
== SERVICE_START_PRE
||
2079 s
->state
== SERVICE_START
||
2080 s
->state
== SERVICE_START_POST
||
2081 s
->state
== SERVICE_RELOAD
) {
2082 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, true);
2086 assert(s
->state
== SERVICE_RUNNING
||
2087 s
->state
== SERVICE_EXITED
);
2089 service_enter_stop(s
, true);
2093 static int service_reload(Unit
*u
) {
2094 Service
*s
= SERVICE(u
);
2098 assert(s
->state
== SERVICE_RUNNING
|| s
->state
== SERVICE_EXITED
);
2100 service_enter_reload(s
);
2104 static bool service_can_reload(Unit
*u
) {
2105 Service
*s
= SERVICE(u
);
2109 return !!s
->exec_command
[SERVICE_EXEC_RELOAD
];
2112 static int service_serialize(Unit
*u
, FILE *f
, FDSet
*fds
) {
2113 Service
*s
= SERVICE(u
);
2119 unit_serialize_item(u
, f
, "state", service_state_to_string(s
->state
));
2120 unit_serialize_item(u
, f
, "failure", yes_no(s
->failure
));
2122 if (s
->control_pid
> 0)
2123 unit_serialize_item_format(u
, f
, "control-pid", "%lu", (unsigned long) s
->control_pid
);
2125 if (s
->main_pid_known
&& s
->main_pid
> 0)
2126 unit_serialize_item_format(u
, f
, "main-pid", "%lu", (unsigned long) s
->main_pid
);
2128 unit_serialize_item(u
, f
, "main-pid-known", yes_no(s
->main_pid_known
));
2131 unit_serialize_item(u
, f
, "status-text", s
->status_text
);
2133 /* There's a minor uncleanliness here: if there are multiple
2134 * commands attached here, we will start from the first one
2136 if (s
->control_command_id
>= 0)
2137 unit_serialize_item(u
, f
, "control-command", service_exec_command_to_string(s
->control_command_id
));
2139 if (s
->socket_fd
>= 0) {
2142 if ((copy
= fdset_put_dup(fds
, s
->socket_fd
)) < 0)
2145 unit_serialize_item_format(u
, f
, "socket-fd", "%i", copy
);
2148 if (s
->main_exec_status
.pid
> 0) {
2149 unit_serialize_item_format(u
, f
, "main-exec-status-pid", "%lu", (unsigned long) s
->main_exec_status
.pid
);
2151 if (s
->main_exec_status
.start_timestamp
.realtime
> 0) {
2152 unit_serialize_item_format(u
, f
, "main-exec-status-start-realtime",
2153 "%llu", (unsigned long long) s
->main_exec_status
.start_timestamp
.realtime
);
2155 unit_serialize_item_format(u
, f
, "main-exec-status-start-monotonic",
2156 "%llu", (unsigned long long) s
->main_exec_status
.start_timestamp
.monotonic
);
2159 if (s
->main_exec_status
.exit_timestamp
.realtime
> 0) {
2160 unit_serialize_item_format(u
, f
, "main-exec-status-exit-realtime",
2161 "%llu", (unsigned long long) s
->main_exec_status
.exit_timestamp
.realtime
);
2162 unit_serialize_item_format(u
, f
, "main-exec-status-exit-monotonic",
2163 "%llu", (unsigned long long) s
->main_exec_status
.exit_timestamp
.monotonic
);
2165 unit_serialize_item_format(u
, f
, "main-exec-status-code", "%i", s
->main_exec_status
.code
);
2166 unit_serialize_item_format(u
, f
, "main-exec-status-status", "%i", s
->main_exec_status
.status
);
2173 static int service_deserialize_item(Unit
*u
, const char *key
, const char *value
, FDSet
*fds
) {
2174 Service
*s
= SERVICE(u
);
2181 if (streq(key
, "state")) {
2184 if ((state
= service_state_from_string(value
)) < 0)
2185 log_debug("Failed to parse state value %s", value
);
2187 s
->deserialized_state
= state
;
2188 } else if (streq(key
, "failure")) {
2191 if ((b
= parse_boolean(value
)) < 0)
2192 log_debug("Failed to parse failure value %s", value
);
2194 s
->failure
= b
|| s
->failure
;
2195 } else if (streq(key
, "control-pid")) {
2198 if (parse_pid(value
, &pid
) < 0)
2199 log_debug("Failed to parse control-pid value %s", value
);
2201 s
->control_pid
= pid
;
2202 } else if (streq(key
, "main-pid")) {
2205 if (parse_pid(value
, &pid
) < 0)
2206 log_debug("Failed to parse main-pid value %s", value
);
2208 service_set_main_pid(s
, (pid_t
) pid
);
2209 } else if (streq(key
, "main-pid-known")) {
2212 if ((b
= parse_boolean(value
)) < 0)
2213 log_debug("Failed to parse main-pid-known value %s", value
);
2215 s
->main_pid_known
= b
;
2216 } else if (streq(key
, "status-text")) {
2219 if ((t
= strdup(value
))) {
2220 free(s
->status_text
);
2224 } else if (streq(key
, "control-command")) {
2225 ServiceExecCommand id
;
2227 if ((id
= service_exec_command_from_string(value
)) < 0)
2228 log_debug("Failed to parse exec-command value %s", value
);
2230 s
->control_command_id
= id
;
2231 s
->control_command
= s
->exec_command
[id
];
2233 } else if (streq(key
, "socket-fd")) {
2236 if (safe_atoi(value
, &fd
) < 0 || fd
< 0 || !fdset_contains(fds
, fd
))
2237 log_debug("Failed to parse socket-fd value %s", value
);
2240 if (s
->socket_fd
>= 0)
2241 close_nointr_nofail(s
->socket_fd
);
2242 s
->socket_fd
= fdset_remove(fds
, fd
);
2244 } else if (streq(key
, "main-exec-status-pid")) {
2247 if (parse_pid(value
, &pid
) < 0)
2248 log_debug("Failed to parse main-exec-status-pid value %s", value
);
2250 s
->main_exec_status
.pid
= pid
;
2251 } else if (streq(key
, "main-exec-status-code")) {
2254 if (safe_atoi(value
, &i
) < 0)
2255 log_debug("Failed to parse main-exec-status-code value %s", value
);
2257 s
->main_exec_status
.code
= i
;
2258 } else if (streq(key
, "main-exec-status-status")) {
2261 if (safe_atoi(value
, &i
) < 0)
2262 log_debug("Failed to parse main-exec-status-status value %s", value
);
2264 s
->main_exec_status
.status
= i
;
2265 } else if (streq(key
, "main-exec-status-start-realtime")) {
2268 if (safe_atou64(value
, &k
) < 0)
2269 log_debug("Failed to parse main-exec-status-start-realtime value %s", value
);
2271 s
->main_exec_status
.start_timestamp
.realtime
= (usec_t
) k
;
2272 } else if (streq(key
, "main-exec-status-start-monotonic")) {
2275 if (safe_atou64(value
, &k
) < 0)
2276 log_debug("Failed to parse main-exec-status-start-monotonic value %s", value
);
2278 s
->main_exec_status
.start_timestamp
.monotonic
= (usec_t
) k
;
2279 } else if (streq(key
, "main-exec-status-exit-realtime")) {
2282 if (safe_atou64(value
, &k
) < 0)
2283 log_debug("Failed to parse main-exec-status-exit-realtime value %s", value
);
2285 s
->main_exec_status
.exit_timestamp
.realtime
= (usec_t
) k
;
2286 } else if (streq(key
, "main-exec-status-exit-monotonic")) {
2289 if (safe_atou64(value
, &k
) < 0)
2290 log_debug("Failed to parse main-exec-status-exit-monotonic value %s", value
);
2292 s
->main_exec_status
.exit_timestamp
.monotonic
= (usec_t
) k
;
2294 log_debug("Unknown serialization key '%s'", key
);
2299 static UnitActiveState
service_active_state(Unit
*u
) {
2302 return state_translation_table
[SERVICE(u
)->state
];
2305 static const char *service_sub_state_to_string(Unit
*u
) {
2308 return service_state_to_string(SERVICE(u
)->state
);
2311 #ifdef HAVE_SYSV_COMPAT
2312 static bool service_check_gc(Unit
*u
) {
2313 Service
*s
= SERVICE(u
);
2317 return !!s
->sysv_path
;
2321 static bool service_check_snapshot(Unit
*u
) {
2322 Service
*s
= SERVICE(u
);
2326 return !s
->got_socket_fd
;
2329 static void service_sigchld_event(Unit
*u
, pid_t pid
, int code
, int status
) {
2330 Service
*s
= SERVICE(u
);
2336 if (!s
->meta
.fragment_path
)
2337 success
= is_clean_exit_lsb(code
, status
);
2339 success
= is_clean_exit(code
, status
);
2341 if (s
->main_pid
== pid
) {
2344 exec_status_exit(&s
->main_exec_status
, pid
, code
, status
);
2346 if (s
->type
!= SERVICE_FORKING
&& s
->control_command
) {
2347 s
->control_command
->exec_status
= s
->main_exec_status
;
2349 if (s
->control_command
->ignore
)
2353 log_full(success
? LOG_DEBUG
: LOG_NOTICE
,
2354 "%s: main process exited, code=%s, status=%i", u
->meta
.id
, sigchld_code_to_string(code
), status
);
2355 s
->failure
= s
->failure
|| !success
;
2357 if (s
->control_command
&&
2358 s
->control_command
->command_next
&&
2361 /* There is another command to *
2362 * execute, so let's do that. */
2364 log_debug("%s running next main command for state %s", u
->meta
.id
, service_state_to_string(s
->state
));
2365 service_run_next_main(s
, success
);
2369 /* The service exited, so the service is officially
2372 s
->control_command
= NULL
;
2373 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
2377 case SERVICE_START_POST
:
2378 case SERVICE_RELOAD
:
2380 /* Need to wait until the operation is
2385 if (s
->type
== SERVICE_ONESHOT
) {
2386 /* This was our main goal, so let's go on */
2388 service_enter_start_post(s
);
2390 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2393 assert(s
->type
== SERVICE_DBUS
|| s
->type
== SERVICE_NOTIFY
);
2398 case SERVICE_RUNNING
:
2399 service_enter_running(s
, success
);
2402 case SERVICE_STOP_SIGTERM
:
2403 case SERVICE_STOP_SIGKILL
:
2405 if (!control_pid_good(s
))
2406 service_enter_stop_post(s
, success
);
2408 /* If there is still a control process, wait for that first */
2412 assert_not_reached("Uh, main process died at wrong time.");
2416 } else if (s
->control_pid
== pid
) {
2420 if (s
->control_command
) {
2421 exec_status_exit(&s
->control_command
->exec_status
, pid
, code
, status
);
2423 if (s
->control_command
->ignore
)
2427 log_full(success
? LOG_DEBUG
: LOG_NOTICE
,
2428 "%s: control process exited, code=%s status=%i", u
->meta
.id
, sigchld_code_to_string(code
), status
);
2429 s
->failure
= s
->failure
|| !success
;
2431 if (s
->control_command
&&
2432 s
->control_command
->command_next
&&
2435 /* There is another command to *
2436 * execute, so let's do that. */
2438 log_debug("%s running next control command for state %s", u
->meta
.id
, service_state_to_string(s
->state
));
2439 service_run_next_control(s
, success
);
2442 /* No further commands for this step, so let's
2443 * figure out what to do next */
2445 s
->control_command
= NULL
;
2446 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
2448 log_debug("%s got final SIGCHLD for state %s", u
->meta
.id
, service_state_to_string(s
->state
));
2452 case SERVICE_START_PRE
:
2454 service_enter_start(s
);
2456 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2460 assert(s
->type
== SERVICE_FORKING
);
2462 /* Let's try to load the pid
2463 * file here if we can. We
2464 * ignore the return value,
2465 * since the PID file might
2466 * actually be created by a
2467 * START_POST script */
2471 service_load_pid_file(s
);
2473 service_enter_start_post(s
);
2475 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2479 case SERVICE_START_POST
:
2480 if (success
&& s
->pid_file
&& !s
->main_pid_known
) {
2483 /* Hmm, let's see if we can
2484 * load the pid now after the
2485 * start-post scripts got
2488 if ((r
= service_load_pid_file(s
)) < 0)
2489 log_warning("%s: failed to load PID file %s: %s", s
->meta
.id
, s
->pid_file
, strerror(-r
));
2494 case SERVICE_RELOAD
:
2496 service_enter_running(s
, true);
2498 service_enter_stop(s
, false);
2503 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, success
);
2506 case SERVICE_STOP_SIGTERM
:
2507 case SERVICE_STOP_SIGKILL
:
2508 if (main_pid_good(s
) <= 0)
2509 service_enter_stop_post(s
, success
);
2511 /* If there is still a service
2512 * process around, wait until
2513 * that one quit, too */
2516 case SERVICE_STOP_POST
:
2517 case SERVICE_FINAL_SIGTERM
:
2518 case SERVICE_FINAL_SIGKILL
:
2519 service_enter_dead(s
, success
, true);
2523 assert_not_reached("Uh, control process died at wrong time.");
2528 /* Notify clients about changed exit status */
2529 unit_add_to_dbus_queue(u
);
2532 static void service_timer_event(Unit
*u
, uint64_t elapsed
, Watch
* w
) {
2533 Service
*s
= SERVICE(u
);
2536 assert(elapsed
== 1);
2538 assert(w
== &s
->timer_watch
);
2542 case SERVICE_START_PRE
:
2544 log_warning("%s operation timed out. Terminating.", u
->meta
.id
);
2545 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2548 case SERVICE_START_POST
:
2549 case SERVICE_RELOAD
:
2550 log_warning("%s operation timed out. Stopping.", u
->meta
.id
);
2551 service_enter_stop(s
, false);
2555 log_warning("%s stopping timed out. Terminating.", u
->meta
.id
);
2556 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
2559 case SERVICE_STOP_SIGTERM
:
2560 log_warning("%s stopping timed out. Killing.", u
->meta
.id
);
2561 service_enter_signal(s
, SERVICE_STOP_SIGKILL
, false);
2564 case SERVICE_STOP_SIGKILL
:
2565 /* Uh, wie sent a SIGKILL and it is still not gone?
2566 * Must be something we cannot kill, so let's just be
2567 * weirded out and continue */
2569 log_warning("%s still around after SIGKILL. Ignoring.", u
->meta
.id
);
2570 service_enter_stop_post(s
, false);
2573 case SERVICE_STOP_POST
:
2574 log_warning("%s stopping timed out (2). Terminating.", u
->meta
.id
);
2575 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2578 case SERVICE_FINAL_SIGTERM
:
2579 log_warning("%s stopping timed out (2). Killing.", u
->meta
.id
);
2580 service_enter_signal(s
, SERVICE_FINAL_SIGKILL
, false);
2583 case SERVICE_FINAL_SIGKILL
:
2584 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u
->meta
.id
);
2585 service_enter_dead(s
, false, true);
2588 case SERVICE_AUTO_RESTART
:
2589 log_info("%s holdoff time over, scheduling restart.", u
->meta
.id
);
2590 service_enter_restart(s
);
2594 assert_not_reached("Timeout at wrong time.");
2598 static void service_cgroup_notify_event(Unit
*u
) {
2599 Service
*s
= SERVICE(u
);
2603 log_debug("%s: cgroup is empty", u
->meta
.id
);
2607 /* Waiting for SIGCHLD is usually more interesting,
2608 * because it includes return codes/signals. Which is
2609 * why we ignore the cgroup events for most cases,
2610 * except when we don't know pid which to expect the
2613 case SERVICE_RUNNING
:
2614 service_enter_running(s
, true);
2617 case SERVICE_STOP_SIGTERM
:
2618 case SERVICE_STOP_SIGKILL
:
2619 if (main_pid_good(s
) <= 0 && !control_pid_good(s
))
2620 service_enter_stop_post(s
, true);
2624 case SERVICE_FINAL_SIGTERM
:
2625 case SERVICE_FINAL_SIGKILL
:
2626 if (main_pid_good(s
) <= 0 && !control_pid_good(s
))
2627 service_enter_dead(s
, true, true);
2636 static void service_notify_message(Unit
*u
, pid_t pid
, char **tags
) {
2637 Service
*s
= SERVICE(u
);
2642 if (s
->notify_access
== NOTIFY_NONE
) {
2643 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2644 u
->meta
.id
, (unsigned long) pid
);
2648 if (s
->notify_access
== NOTIFY_MAIN
&& pid
!= s
->main_pid
) {
2649 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2650 u
->meta
.id
, (unsigned long) pid
, (unsigned long) s
->main_pid
);
2654 log_debug("%s: Got message", u
->meta
.id
);
2656 /* Interpret MAINPID= */
2657 if ((e
= strv_find_prefix(tags
, "MAINPID=")) &&
2658 (s
->state
== SERVICE_START
||
2659 s
->state
== SERVICE_START_POST
||
2660 s
->state
== SERVICE_RUNNING
||
2661 s
->state
== SERVICE_RELOAD
)) {
2663 if (parse_pid(e
+ 8, &pid
) < 0)
2664 log_warning("Failed to parse notification message %s", e
);
2666 log_debug("%s: got %s", u
->meta
.id
, e
);
2667 service_set_main_pid(s
, pid
);
2671 /* Interpret READY= */
2672 if (s
->type
== SERVICE_NOTIFY
&&
2673 s
->state
== SERVICE_START
&&
2674 strv_find(tags
, "READY=1")) {
2675 log_debug("%s: got READY=1", u
->meta
.id
);
2677 service_enter_start_post(s
);
2680 /* Interpret STATUS= */
2681 if ((e
= strv_find_prefix(tags
, "STATUS="))) {
2685 if (!(t
= strdup(e
+7))) {
2686 log_error("Failed to allocate string.");
2690 log_debug("%s: got %s", u
->meta
.id
, e
);
2692 free(s
->status_text
);
2695 free(s
->status_text
);
2696 s
->status_text
= NULL
;
2701 /* Notify clients about changed status or main pid */
2702 unit_add_to_dbus_queue(u
);
2705 #ifdef HAVE_SYSV_COMPAT
2706 static int service_enumerate(Manager
*m
) {
2710 char *path
= NULL
, *fpath
= NULL
, *name
= NULL
;
2711 Set
*runlevel_services
[ELEMENTSOF(rcnd_table
)], *shutdown_services
= NULL
;
2716 Unit
*previous
= NULL
;
2717 char *arch_daemons
= NULL
;
2718 char *arch_daemons_stripped
= NULL
;
2719 char **arch_daemons_split
= NULL
;
2725 if ((r
= parse_env_file("/etc/rc.conf", NEWLINE
,
2726 "DAEMONS", &arch_daemons
,
2730 log_warning("Failed to read /etc/rc.conf: %s", strerror(-r
));
2732 } else if (arch_daemons
) {
2733 if (!(arch_daemons_stripped
= strchr(arch_daemons
, '(')))
2734 arch_daemons_stripped
= arch_daemons
;
2736 arch_daemons_stripped
++; /* strip start paren */
2738 arch_daemons_stripped
[strcspn(arch_daemons_stripped
, ")")] = 0; /* strip end paren */
2740 if (!(arch_daemons_split
= strv_split_quoted(arch_daemons_stripped
))) {
2745 STRV_FOREACH(p
, arch_daemons_split
) {
2749 if (**p
== '!') /* daemons prefixed with ! are disabled, so ignore them */
2752 if (!(name
= sysv_translate_name(*p
))) {
2757 if ((r
= manager_load_unit_prepare(m
, name
, NULL
, NULL
, &service
)) < 0) {
2758 log_warning("Failed to prepare unit %s: %s", name
, strerror(-r
));
2762 if ((r
= unit_add_two_dependencies_by_name_inverse(service
, UNIT_AFTER
, UNIT_WANTS
, "multi-user.target", NULL
, true)) < 0)
2766 if ((r
= unit_add_dependency(service
, UNIT_AFTER
, previous
, true)) < 0)
2769 if (**p
!= '@') /* daemons prefixed with @ can be started in the background */
2775 zero(runlevel_services
);
2777 STRV_FOREACH(p
, m
->lookup_paths
.sysvrcnd_path
)
2778 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++) {
2783 if (asprintf(&path
, "%s/%s", *p
, rcnd_table
[i
].path
) < 0) {
2791 if (!(d
= opendir(path
))) {
2792 if (errno
!= ENOENT
)
2793 log_warning("opendir() failed on %s: %s", path
, strerror(errno
));
2798 while ((de
= readdir(d
))) {
2801 if (ignore_file(de
->d_name
))
2804 if (de
->d_name
[0] != 'S' && de
->d_name
[0] != 'K')
2807 if (strlen(de
->d_name
) < 4)
2810 a
= undecchar(de
->d_name
[1]);
2811 b
= undecchar(de
->d_name
[2]);
2818 if (asprintf(&fpath
, "%s/%s/%s", *p
, rcnd_table
[i
].path
, de
->d_name
) < 0) {
2823 if (access(fpath
, X_OK
) < 0) {
2825 if (errno
!= ENOENT
)
2826 log_warning("access() failed on %s: %s", fpath
, strerror(errno
));
2832 if (!(name
= sysv_translate_name(de
->d_name
+ 3))) {
2837 if ((r
= manager_load_unit_prepare(m
, name
, NULL
, NULL
, &service
)) < 0) {
2838 log_warning("Failed to prepare unit %s: %s", name
, strerror(-r
));
2842 if (de
->d_name
[0] == 'S') {
2844 if (rcnd_table
[i
].type
== RUNLEVEL_UP
|| rcnd_table
[i
].type
== RUNLEVEL_SYSINIT
) {
2845 SERVICE(service
)->sysv_start_priority
=
2846 MAX(a
*10 + b
, SERVICE(service
)->sysv_start_priority
);
2848 SERVICE(service
)->sysv_enabled
= true;
2851 if ((r
= set_ensure_allocated(&runlevel_services
[i
], trivial_hash_func
, trivial_compare_func
)) < 0)
2854 if ((r
= set_put(runlevel_services
[i
], service
)) < 0)
2857 } else if (de
->d_name
[0] == 'K' &&
2858 (rcnd_table
[i
].type
== RUNLEVEL_DOWN
||
2859 rcnd_table
[i
].type
== RUNLEVEL_SYSINIT
)) {
2861 if ((r
= set_ensure_allocated(&shutdown_services
, trivial_hash_func
, trivial_compare_func
)) < 0)
2864 if ((r
= set_put(shutdown_services
, service
)) < 0)
2870 /* Now we loaded all stubs and are aware of the lowest
2871 start-up priority for all services, not let's actually load
2872 the services, this will also tell us which services are
2873 actually native now */
2874 manager_dispatch_load_queue(m
);
2876 /* If this is a native service, rely on native ways to pull in
2877 * a service, don't pull it in via sysv rcN.d links. */
2878 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++)
2879 SET_FOREACH(service
, runlevel_services
[i
], j
) {
2880 service
= unit_follow_merge(service
);
2882 if (service
->meta
.fragment_path
)
2885 if ((r
= unit_add_two_dependencies_by_name_inverse(service
, UNIT_AFTER
, UNIT_WANTS
, rcnd_table
[i
].target
, NULL
, true)) < 0)
2889 /* We honour K links only for halt/reboot. For the normal
2890 * runlevels we assume the stop jobs will be implicitly added
2891 * by the core logic. Also, we don't really distuingish here
2892 * between the runlevels 0 and 6 and just add them to the
2893 * special shutdown target. On SUSE the boot.d/ runlevel is
2894 * also used for shutdown, so we add links for that too to the
2895 * shutdown target.*/
2896 SET_FOREACH(service
, shutdown_services
, j
) {
2897 service
= unit_follow_merge(service
);
2899 if (service
->meta
.fragment_path
)
2902 if ((r
= unit_add_two_dependencies_by_name_inverse(service
, UNIT_AFTER
, UNIT_CONFLICTS
, SPECIAL_SHUTDOWN_TARGET
, NULL
, true)) < 0)
2914 free(arch_daemons_split
);
2917 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++)
2918 set_free(runlevel_services
[i
]);
2919 set_free(shutdown_services
);
2928 static void service_bus_name_owner_change(
2931 const char *old_owner
,
2932 const char *new_owner
) {
2934 Service
*s
= SERVICE(u
);
2939 assert(streq(s
->bus_name
, name
));
2940 assert(old_owner
|| new_owner
);
2942 if (old_owner
&& new_owner
)
2943 log_debug("%s's D-Bus name %s changed owner from %s to %s", u
->meta
.id
, name
, old_owner
, new_owner
);
2945 log_debug("%s's D-Bus name %s no longer registered by %s", u
->meta
.id
, name
, old_owner
);
2947 log_debug("%s's D-Bus name %s now registered by %s", u
->meta
.id
, name
, new_owner
);
2949 s
->bus_name_good
= !!new_owner
;
2951 if (s
->type
== SERVICE_DBUS
) {
2953 /* service_enter_running() will figure out what to
2955 if (s
->state
== SERVICE_RUNNING
)
2956 service_enter_running(s
, true);
2957 else if (s
->state
== SERVICE_START
&& new_owner
)
2958 service_enter_start_post(s
);
2960 } else if (new_owner
&&
2962 (s
->state
== SERVICE_START
||
2963 s
->state
== SERVICE_START_POST
||
2964 s
->state
== SERVICE_RUNNING
||
2965 s
->state
== SERVICE_RELOAD
)) {
2967 /* Try to acquire PID from bus service */
2968 log_debug("Trying to acquire PID from D-Bus name...");
2970 bus_query_pid(u
->meta
.manager
, name
);
2974 static void service_bus_query_pid_done(
2979 Service
*s
= SERVICE(u
);
2984 log_debug("%s's D-Bus name %s is now owned by process %u", u
->meta
.id
, name
, (unsigned) pid
);
2986 if (s
->main_pid
<= 0 &&
2987 (s
->state
== SERVICE_START
||
2988 s
->state
== SERVICE_START_POST
||
2989 s
->state
== SERVICE_RUNNING
||
2990 s
->state
== SERVICE_RELOAD
))
2991 service_set_main_pid(s
, pid
);
2994 int service_set_socket_fd(Service
*s
, int fd
, Socket
*sock
) {
2998 /* This is called by the socket code when instantiating a new
2999 * service for a stream socket and the socket needs to be
3002 if (s
->meta
.load_state
!= UNIT_LOADED
)
3005 if (s
->socket_fd
>= 0)
3008 if (s
->state
!= SERVICE_DEAD
)
3012 s
->got_socket_fd
= true;
3018 static void service_reset_failed(Unit
*u
) {
3019 Service
*s
= SERVICE(u
);
3023 if (s
->state
== SERVICE_FAILED
)
3024 service_set_state(s
, SERVICE_DEAD
);
3029 static const char* const service_state_table
[_SERVICE_STATE_MAX
] = {
3030 [SERVICE_DEAD
] = "dead",
3031 [SERVICE_START_PRE
] = "start-pre",
3032 [SERVICE_START
] = "start",
3033 [SERVICE_START_POST
] = "start-post",
3034 [SERVICE_RUNNING
] = "running",
3035 [SERVICE_EXITED
] = "exited",
3036 [SERVICE_RELOAD
] = "reload",
3037 [SERVICE_STOP
] = "stop",
3038 [SERVICE_STOP_SIGTERM
] = "stop-sigterm",
3039 [SERVICE_STOP_SIGKILL
] = "stop-sigkill",
3040 [SERVICE_STOP_POST
] = "stop-post",
3041 [SERVICE_FINAL_SIGTERM
] = "final-sigterm",
3042 [SERVICE_FINAL_SIGKILL
] = "final-sigkill",
3043 [SERVICE_FAILED
] = "failed",
3044 [SERVICE_AUTO_RESTART
] = "auto-restart",
3047 DEFINE_STRING_TABLE_LOOKUP(service_state
, ServiceState
);
3049 static const char* const service_restart_table
[_SERVICE_RESTART_MAX
] = {
3050 [SERVICE_ONCE
] = "once",
3051 [SERVICE_RESTART_ON_SUCCESS
] = "restart-on-success",
3052 [SERVICE_RESTART_ALWAYS
] = "restart-always",
3055 DEFINE_STRING_TABLE_LOOKUP(service_restart
, ServiceRestart
);
3057 static const char* const service_type_table
[_SERVICE_TYPE_MAX
] = {
3058 [SERVICE_SIMPLE
] = "simple",
3059 [SERVICE_FORKING
] = "forking",
3060 [SERVICE_ONESHOT
] = "oneshot",
3061 [SERVICE_DBUS
] = "dbus",
3062 [SERVICE_NOTIFY
] = "notify"
3065 DEFINE_STRING_TABLE_LOOKUP(service_type
, ServiceType
);
3067 static const char* const service_exec_command_table
[_SERVICE_EXEC_COMMAND_MAX
] = {
3068 [SERVICE_EXEC_START_PRE
] = "ExecStartPre",
3069 [SERVICE_EXEC_START
] = "ExecStart",
3070 [SERVICE_EXEC_START_POST
] = "ExecStartPost",
3071 [SERVICE_EXEC_RELOAD
] = "ExecReload",
3072 [SERVICE_EXEC_STOP
] = "ExecStop",
3073 [SERVICE_EXEC_STOP_POST
] = "ExecStopPost",
3076 DEFINE_STRING_TABLE_LOOKUP(service_exec_command
, ServiceExecCommand
);
3078 static const char* const notify_access_table
[_NOTIFY_ACCESS_MAX
] = {
3079 [NOTIFY_NONE
] = "none",
3080 [NOTIFY_MAIN
] = "main",
3081 [NOTIFY_ALL
] = "all"
3084 DEFINE_STRING_TABLE_LOOKUP(notify_access
, NotifyAccess
);
3086 const UnitVTable service_vtable
= {
3087 .suffix
= ".service",
3088 .show_status
= true,
3090 .init
= service_init
,
3091 .done
= service_done
,
3092 .load
= service_load
,
3094 .coldplug
= service_coldplug
,
3096 .dump
= service_dump
,
3098 .start
= service_start
,
3099 .stop
= service_stop
,
3100 .reload
= service_reload
,
3102 .can_reload
= service_can_reload
,
3104 .serialize
= service_serialize
,
3105 .deserialize_item
= service_deserialize_item
,
3107 .active_state
= service_active_state
,
3108 .sub_state_to_string
= service_sub_state_to_string
,
3110 #ifdef HAVE_SYSV_COMPAT
3111 .check_gc
= service_check_gc
,
3113 .check_snapshot
= service_check_snapshot
,
3115 .sigchld_event
= service_sigchld_event
,
3116 .timer_event
= service_timer_event
,
3118 .reset_failed
= service_reset_failed
,
3120 .cgroup_notify_empty
= service_cgroup_notify_event
,
3121 .notify_message
= service_notify_message
,
3123 .bus_name_owner_change
= service_bus_name_owner_change
,
3124 .bus_query_pid_done
= service_bus_query_pid_done
,
3126 .bus_interface
= "org.freedesktop.systemd1.Service",
3127 .bus_message_handler
= bus_service_message_handler
,
3128 .bus_invalidating_properties
= bus_service_invalidating_properties
,
3130 #ifdef HAVE_SYSV_COMPAT
3131 .enumerate
= service_enumerate