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"
37 #include "exit-status.h"
41 #ifdef HAVE_SYSV_COMPAT
43 #define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE)
45 typedef enum RunlevelType
{
54 const RunlevelType type
;
56 /* Standard SysV runlevels for start-up */
57 { "rc1.d", SPECIAL_RESCUE_TARGET
, RUNLEVEL_UP
},
58 { "rc2.d", SPECIAL_RUNLEVEL2_TARGET
, RUNLEVEL_UP
},
59 { "rc3.d", SPECIAL_RUNLEVEL3_TARGET
, RUNLEVEL_UP
},
60 { "rc4.d", SPECIAL_RUNLEVEL4_TARGET
, RUNLEVEL_UP
},
61 { "rc5.d", SPECIAL_RUNLEVEL5_TARGET
, RUNLEVEL_UP
},
64 /* SUSE style boot.d */
65 { "boot.d", SPECIAL_SYSINIT_TARGET
, RUNLEVEL_SYSINIT
},
68 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_FRUGALWARE) || defined(TARGET_ANGSTROM)
69 /* Debian style rcS.d */
70 { "rcS.d", SPECIAL_SYSINIT_TARGET
, RUNLEVEL_SYSINIT
},
73 /* Standard SysV runlevels for shutdown */
74 { "rc0.d", SPECIAL_POWEROFF_TARGET
, RUNLEVEL_DOWN
},
75 { "rc6.d", SPECIAL_REBOOT_TARGET
, RUNLEVEL_DOWN
}
77 /* Note that the order here matters, as we read the
78 directories in this order, and we want to make sure that
79 sysv_start_priority is known when we first load the
80 unit. And that value we only know from S links. Hence
81 UP/SYSINIT must be read before DOWN */
84 #define RUNLEVELS_UP "12345"
85 /* #define RUNLEVELS_DOWN "06" */
86 /* #define RUNLEVELS_BOOT "bBsS" */
89 static const UnitActiveState state_translation_table
[_SERVICE_STATE_MAX
] = {
90 [SERVICE_DEAD
] = UNIT_INACTIVE
,
91 [SERVICE_START_PRE
] = UNIT_ACTIVATING
,
92 [SERVICE_START
] = UNIT_ACTIVATING
,
93 [SERVICE_START_POST
] = UNIT_ACTIVATING
,
94 [SERVICE_RUNNING
] = UNIT_ACTIVE
,
95 [SERVICE_EXITED
] = UNIT_ACTIVE
,
96 [SERVICE_RELOAD
] = UNIT_RELOADING
,
97 [SERVICE_STOP
] = UNIT_DEACTIVATING
,
98 [SERVICE_STOP_SIGTERM
] = UNIT_DEACTIVATING
,
99 [SERVICE_STOP_SIGKILL
] = UNIT_DEACTIVATING
,
100 [SERVICE_STOP_POST
] = UNIT_DEACTIVATING
,
101 [SERVICE_FINAL_SIGTERM
] = UNIT_DEACTIVATING
,
102 [SERVICE_FINAL_SIGKILL
] = UNIT_DEACTIVATING
,
103 [SERVICE_FAILED
] = UNIT_FAILED
,
104 [SERVICE_AUTO_RESTART
] = UNIT_ACTIVATING
107 static void service_init(Unit
*u
) {
108 Service
*s
= SERVICE(u
);
111 assert(u
->meta
.load_state
== UNIT_STUB
);
113 s
->timeout_usec
= DEFAULT_TIMEOUT_USEC
;
114 s
->restart_usec
= DEFAULT_RESTART_USEC
;
115 s
->timer_watch
.type
= WATCH_INVALID
;
116 #ifdef HAVE_SYSV_COMPAT
117 s
->sysv_start_priority
= -1;
118 s
->sysv_start_priority_from_rcnd
= -1;
121 s
->guess_main_pid
= true;
123 exec_context_init(&s
->exec_context
);
124 s
->exec_context
.std_output
= u
->meta
.manager
->default_std_output
;
125 s
->exec_context
.std_error
= u
->meta
.manager
->default_std_error
;
127 RATELIMIT_INIT(s
->ratelimit
, 10*USEC_PER_SEC
, 5);
129 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
132 static void service_unwatch_control_pid(Service
*s
) {
135 if (s
->control_pid
<= 0)
138 unit_unwatch_pid(UNIT(s
), s
->control_pid
);
142 static void service_unwatch_main_pid(Service
*s
) {
145 if (s
->main_pid
<= 0)
148 unit_unwatch_pid(UNIT(s
), s
->main_pid
);
152 static int service_set_main_pid(Service
*s
, pid_t pid
) {
164 s
->main_pid_known
= true;
166 if (get_parent_of_pid(pid
, &ppid
) >= 0 && ppid
!= getpid()) {
167 log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
168 s
->meta
.id
, (unsigned long) pid
);
170 s
->main_pid_alien
= true;
172 s
->main_pid_alien
= false;
174 exec_status_start(&s
->main_exec_status
, pid
);
179 static void service_close_socket_fd(Service
*s
) {
182 if (s
->socket_fd
< 0)
185 close_nointr_nofail(s
->socket_fd
);
189 static void service_connection_unref(Service
*s
) {
192 if (!s
->accept_socket
)
195 socket_connection_unref(s
->accept_socket
);
196 s
->accept_socket
= NULL
;
199 static void service_done(Unit
*u
) {
200 Service
*s
= SERVICE(u
);
207 #ifdef HAVE_SYSV_COMPAT
211 free(s
->sysv_runlevels
);
212 s
->sysv_runlevels
= NULL
;
215 free(s
->status_text
);
216 s
->status_text
= NULL
;
218 exec_context_done(&s
->exec_context
);
219 exec_command_free_array(s
->exec_command
, _SERVICE_EXEC_COMMAND_MAX
);
220 s
->control_command
= NULL
;
221 s
->main_command
= NULL
;
223 /* This will leak a process, but at least no memory or any of
225 service_unwatch_main_pid(s
);
226 service_unwatch_control_pid(s
);
229 unit_unwatch_bus_name(UNIT(u
), s
->bus_name
);
234 service_close_socket_fd(s
);
235 service_connection_unref(s
);
237 set_free(s
->configured_sockets
);
239 unit_unwatch_timer(u
, &s
->timer_watch
);
242 #ifdef HAVE_SYSV_COMPAT
243 static char *sysv_translate_name(const char *name
) {
246 if (!(r
= new(char, strlen(name
) + sizeof(".service"))))
249 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
250 if (endswith(name
, ".sh"))
251 /* Drop Debian-style .sh suffix */
252 strcpy(stpcpy(r
, name
) - 3, ".service");
255 if (startswith(name
, "boot."))
256 /* Drop SuSE-style boot. prefix */
257 strcpy(stpcpy(r
, name
+ 5), ".service");
259 #ifdef TARGET_FRUGALWARE
260 if (startswith(name
, "rc."))
261 /* Drop Frugalware-style rc. prefix */
262 strcpy(stpcpy(r
, name
+ 3), ".service");
265 /* Normal init scripts */
266 strcpy(stpcpy(r
, name
), ".service");
271 static int sysv_translate_facility(const char *name
, const char *filename
, char **_r
) {
273 /* We silently ignore the $ prefix here. According to the LSB
274 * spec it simply indicates whether something is a
275 * standardized name or a distribution-specific one. Since we
276 * just follow what already exists and do not introduce new
277 * uses or names we don't care who introduced a new name. */
279 static const char * const table
[] = {
280 /* LSB defined facilities */
281 "local_fs", SPECIAL_LOCAL_FS_TARGET
,
282 #ifndef TARGET_MANDRIVA
283 /* Due to unfortunate name selection in Mandriva,
284 * $network is provided by network-up which is ordered
285 * after network which actually starts interfaces.
286 * To break the loop, just ignore it */
287 "network", SPECIAL_NETWORK_TARGET
,
289 "named", SPECIAL_NSS_LOOKUP_TARGET
,
290 "portmap", SPECIAL_RPCBIND_TARGET
,
291 "remote_fs", SPECIAL_REMOTE_FS_TARGET
,
292 "syslog", SPECIAL_SYSLOG_TARGET
,
293 "time", SPECIAL_TIME_SYNC_TARGET
,
295 /* common extensions */
296 "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
297 "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE
,
300 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
301 "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
305 "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
306 "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
307 "httpd", SPECIAL_HTTP_DAEMON_TARGET
,
311 "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET
,
322 n
= *name
== '$' ? name
+ 1 : name
;
324 for (i
= 0; i
< ELEMENTSOF(table
); i
+= 2) {
326 if (!streq(table
[i
], n
))
332 if (!(r
= strdup(table
[i
+1])))
338 /* If we don't know this name, fallback heuristics to figure
339 * out whether something is a target or a service alias. */
342 if (!unit_prefix_is_valid(n
))
345 /* Facilities starting with $ are most likely targets */
346 r
= unit_name_build(n
, NULL
, ".target");
347 } else if (filename
&& streq(name
, filename
))
348 /* Names equaling the file name of the services are redundant */
351 /* Everything else we assume to be normal service names */
352 r
= sysv_translate_name(n
);
363 static int sysv_fix_order(Service
*s
) {
369 if (s
->sysv_start_priority
< 0)
372 /* For each pair of services where at least one lacks a LSB
373 * header, we use the start priority value to order things. */
375 LIST_FOREACH(units_by_type
, other
, s
->meta
.manager
->units_by_type
[UNIT_SERVICE
]) {
378 bool special_s
, special_t
;
380 t
= (Service
*) other
;
385 if (t
->meta
.load_state
!= UNIT_LOADED
)
388 if (t
->sysv_start_priority
< 0)
391 /* If both units have modern headers we don't care
392 * about the priorities */
393 if ((s
->meta
.fragment_path
|| s
->sysv_has_lsb
) &&
394 (t
->meta
.fragment_path
|| t
->sysv_has_lsb
))
397 special_s
= s
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, s
->sysv_runlevels
);
398 special_t
= t
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, t
->sysv_runlevels
);
400 if (special_t
&& !special_s
)
402 else if (special_s
&& !special_t
)
404 else if (t
->sysv_start_priority
< s
->sysv_start_priority
)
406 else if (t
->sysv_start_priority
> s
->sysv_start_priority
)
411 /* FIXME: Maybe we should compare the name here lexicographically? */
413 if ((r
= unit_add_dependency(UNIT(s
), d
, UNIT(t
), true)) < 0)
420 static ExecCommand
*exec_command_new(const char *path
, const char *arg1
) {
423 if (!(c
= new0(ExecCommand
, 1)))
426 if (!(c
->path
= strdup(path
))) {
431 if (!(c
->argv
= strv_new(path
, arg1
, NULL
))) {
440 static int sysv_exec_commands(Service
*s
) {
444 assert(s
->sysv_path
);
446 if (!(c
= exec_command_new(s
->sysv_path
, "start")))
448 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_START
, c
);
450 if (!(c
= exec_command_new(s
->sysv_path
, "stop")))
452 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_STOP
, c
);
454 if (!(c
= exec_command_new(s
->sysv_path
, "reload")))
456 exec_command_append_list(s
->exec_command
+SERVICE_EXEC_RELOAD
, c
);
461 static int service_load_sysv_path(Service
*s
, const char *path
) {
472 char *short_description
= NULL
, *long_description
= NULL
, *chkconfig_description
= NULL
, *description
;
480 if (!(f
= fopen(path
, "re"))) {
481 r
= errno
== ENOENT
? 0 : -errno
;
486 if (fstat(fileno(f
), &st
) < 0) {
492 if (!(s
->sysv_path
= strdup(path
))) {
497 s
->sysv_mtime
= timespec_load(&st
.st_mtim
);
499 if (null_or_empty(&st
)) {
500 u
->meta
.load_state
= UNIT_MASKED
;
506 char l
[LINE_MAX
], *t
;
508 if (!fgets(l
, sizeof(l
), f
)) {
513 log_error("Failed to read configuration file '%s': %s", path
, strerror(-r
));
523 if (state
== NORMAL
&& streq(t
, "### BEGIN INIT INFO")) {
525 s
->sysv_has_lsb
= true;
529 if ((state
== LSB_DESCRIPTION
|| state
== LSB
) && streq(t
, "### END INIT INFO")) {
535 t
+= strspn(t
, WHITESPACE
);
537 if (state
== NORMAL
) {
539 /* Try to parse Red Hat style chkconfig headers */
541 if (startswith_no_case(t
, "chkconfig:")) {
543 char runlevels
[16], *k
;
547 if (sscanf(t
+10, "%15s %i %*i",
549 &start_priority
) != 2) {
551 log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path
, line
);
555 /* A start priority gathered from the
556 * symlink farms is preferred over the
557 * data from the LSB header. */
558 if (start_priority
< 0 || start_priority
> 99)
559 log_warning("[%s:%u] Start priority out of range. Ignoring.", path
, line
);
561 s
->sysv_start_priority
= start_priority
;
563 char_array_0(runlevels
);
564 k
= delete_chars(runlevels
, WHITESPACE
"-");
569 if (!(d
= strdup(k
))) {
574 free(s
->sysv_runlevels
);
575 s
->sysv_runlevels
= d
;
578 } else if (startswith_no_case(t
, "description:")) {
580 size_t k
= strlen(t
);
584 if (t
[k
-1] == '\\') {
589 if ((j
= strstrip(t
+12)) && *j
) {
590 if (!(d
= strdup(j
))) {
597 free(chkconfig_description
);
598 chkconfig_description
= d
;
600 } else if (startswith_no_case(t
, "pidfile:")) {
607 if (!path_is_absolute(fn
)) {
608 log_warning("[%s:%u] PID file not absolute. Ignoring.", path
, line
);
612 if (!(fn
= strdup(fn
))) {
621 } else if (state
== DESCRIPTION
) {
623 /* Try to parse Red Hat style description
626 size_t k
= strlen(t
);
634 if ((j
= strstrip(t
)) && *j
) {
637 if (chkconfig_description
)
638 asprintf(&d
, "%s %s", chkconfig_description
, j
);
647 free(chkconfig_description
);
648 chkconfig_description
= d
;
651 } else if (state
== LSB
|| state
== LSB_DESCRIPTION
) {
653 if (startswith_no_case(t
, "Provides:")) {
659 FOREACH_WORD_QUOTED(w
, z
, t
+9, i
) {
662 if (!(n
= strndup(w
, z
))) {
667 r
= sysv_translate_facility(n
, file_name_from_path(path
), &m
);
676 if (unit_name_to_type(m
) == UNIT_SERVICE
)
677 r
= unit_add_name(u
, m
);
684 * indication that the
686 * now available. This
689 * targets do NOT pull
692 r
= unit_add_two_dependencies_by_name(u
, UNIT_BEFORE
, UNIT_WANTS
, m
, NULL
, true);
695 log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path
, line
, m
, strerror(-r
));
700 } else if (startswith_no_case(t
, "Required-Start:") ||
701 startswith_no_case(t
, "Should-Start:") ||
702 startswith_no_case(t
, "X-Start-Before:") ||
703 startswith_no_case(t
, "X-Start-After:")) {
709 FOREACH_WORD_QUOTED(w
, z
, strchr(t
, ':')+1, i
) {
712 if (!(n
= strndup(w
, z
))) {
717 r
= sysv_translate_facility(n
, file_name_from_path(path
), &m
);
720 log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path
, line
, n
, strerror(-r
));
730 r
= unit_add_dependency_by_name(u
, startswith_no_case(t
, "X-Start-Before:") ? UNIT_BEFORE
: UNIT_AFTER
, m
, NULL
, true);
733 log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path
, line
, m
, strerror(-r
));
737 } else if (startswith_no_case(t
, "Default-Start:")) {
742 k
= delete_chars(t
+14, WHITESPACE
"-");
745 if (!(d
= strdup(k
))) {
750 free(s
->sysv_runlevels
);
751 s
->sysv_runlevels
= d
;
754 } else if (startswith_no_case(t
, "Description:")) {
757 state
= LSB_DESCRIPTION
;
759 if ((j
= strstrip(t
+12)) && *j
) {
760 if (!(d
= strdup(j
))) {
767 free(long_description
);
768 long_description
= d
;
770 } else if (startswith_no_case(t
, "Short-Description:")) {
775 if ((j
= strstrip(t
+18)) && *j
) {
776 if (!(d
= strdup(j
))) {
783 free(short_description
);
784 short_description
= d
;
786 } else if (startswith_no_case(t
, "X-Interactive:")) {
789 if ((b
= parse_boolean(strstrip(t
+14))) < 0) {
790 log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path
, line
);
795 s
->exec_context
.std_input
= EXEC_INPUT_TTY
;
797 s
->exec_context
.std_input
= EXEC_INPUT_NULL
;
799 } else if (state
== LSB_DESCRIPTION
) {
801 if (startswith(l
, "#\t") || startswith(l
, "# ")) {
804 if ((j
= strstrip(t
)) && *j
) {
807 if (long_description
)
808 asprintf(&d
, "%s %s", long_description
, t
);
817 free(long_description
);
818 long_description
= d
;
827 if ((r
= sysv_exec_commands(s
)) < 0)
830 if (s
->sysv_runlevels
&& !chars_intersect(RUNLEVELS_UP
, s
->sysv_runlevels
)) {
831 /* If there a runlevels configured for this service
832 * but none of the standard ones, then we assume this
833 * is some special kind of service (which might be
834 * needed for early boot) and don't create any links
837 s
->meta
.default_dependencies
= false;
839 /* Don't timeout special services during boot (like fsck) */
842 s
->timeout_usec
= DEFAULT_SYSV_TIMEOUT_USEC
;
844 /* Special setting for all SysV services */
845 s
->type
= SERVICE_FORKING
;
846 s
->remain_after_exit
= !s
->pid_file
;
847 s
->restart
= SERVICE_RESTART_NO
;
848 s
->exec_context
.std_output
=
849 (s
->meta
.manager
->sysv_console
|| s
->exec_context
.std_input
== EXEC_INPUT_TTY
)
850 ? EXEC_OUTPUT_TTY
: s
->meta
.manager
->default_std_output
;
851 s
->exec_context
.kill_mode
= KILL_PROCESS
;
853 /* We use the long description only if
854 * no short description is set. */
856 if (short_description
)
857 description
= short_description
;
858 else if (chkconfig_description
)
859 description
= chkconfig_description
;
860 else if (long_description
)
861 description
= long_description
;
868 if (!(d
= strappend(s
->sysv_has_lsb
? "LSB: " : "SYSV: ", description
))) {
873 u
->meta
.description
= d
;
876 /* The priority that has been set in /etc/rcN.d/ hierarchies
877 * takes precedence over what is stored as default in the LSB
879 if (s
->sysv_start_priority_from_rcnd
>= 0)
880 s
->sysv_start_priority
= s
->sysv_start_priority_from_rcnd
;
882 u
->meta
.load_state
= UNIT_LOADED
;
890 free(short_description
);
891 free(long_description
);
892 free(chkconfig_description
);
897 static int service_load_sysv_name(Service
*s
, const char *name
) {
903 /* For SysV services we strip the boot.*, rc.* and *.sh
904 * prefixes/suffixes. */
905 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
906 if (endswith(name
, ".sh.service"))
911 if (startswith(name
, "boot."))
915 #ifdef TARGET_FRUGALWARE
916 if (startswith(name
, "rc."))
920 STRV_FOREACH(p
, s
->meta
.manager
->lookup_paths
.sysvinit_path
) {
924 if (asprintf(&path
, "%s/%s", *p
, name
) < 0)
927 assert(endswith(path
, ".service"));
928 path
[strlen(path
)-8] = 0;
930 r
= service_load_sysv_path(s
, path
);
932 #if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
933 if (r
>= 0 && s
->meta
.load_state
== UNIT_STUB
) {
934 /* Try Debian style *.sh source'able init scripts */
936 r
= service_load_sysv_path(s
, path
);
942 if (r
>= 0 && s
->meta
.load_state
== UNIT_STUB
) {
943 /* Try SUSE style boot.* init scripts */
945 if (asprintf(&path
, "%s/boot.%s", *p
, name
) < 0)
948 /* Drop .service suffix */
949 path
[strlen(path
)-8] = 0;
950 r
= service_load_sysv_path(s
, path
);
955 #ifdef TARGET_FRUGALWARE
956 if (r
>= 0 && s
->meta
.load_state
== UNIT_STUB
) {
957 /* Try Frugalware style rc.* init scripts */
959 if (asprintf(&path
, "%s/rc.%s", *p
, name
) < 0)
962 /* Drop .service suffix */
963 path
[strlen(path
)-8] = 0;
964 r
= service_load_sysv_path(s
, path
);
972 if ((s
->meta
.load_state
!= UNIT_STUB
))
979 static int service_load_sysv(Service
*s
) {
986 /* Load service data from SysV init scripts, preferably with
989 if (strv_isempty(s
->meta
.manager
->lookup_paths
.sysvinit_path
))
992 if ((t
= s
->meta
.id
))
993 if ((r
= service_load_sysv_name(s
, t
)) < 0)
996 if (s
->meta
.load_state
== UNIT_STUB
)
997 SET_FOREACH(t
, s
->meta
.names
, i
) {
1001 if ((r
= service_load_sysv_name(s
, t
)) < 0)
1004 if (s
->meta
.load_state
!= UNIT_STUB
)
1012 static int fsck_fix_order(Service
*s
) {
1018 if (s
->fsck_passno
<= 0)
1021 /* For each pair of services where both have an fsck priority
1022 * we order things based on it. */
1024 LIST_FOREACH(units_by_type
, other
, s
->meta
.manager
->units_by_type
[UNIT_SERVICE
]) {
1028 t
= (Service
*) other
;
1033 if (t
->meta
.load_state
!= UNIT_LOADED
)
1036 if (t
->fsck_passno
<= 0)
1039 if (t
->fsck_passno
< s
->fsck_passno
)
1041 else if (t
->fsck_passno
> s
->fsck_passno
)
1046 if ((r
= unit_add_dependency(UNIT(s
), d
, UNIT(t
), true)) < 0)
1053 static int service_verify(Service
*s
) {
1056 if (s
->meta
.load_state
!= UNIT_LOADED
)
1059 if (!s
->exec_command
[SERVICE_EXEC_START
]) {
1060 log_error("%s lacks ExecStart setting. Refusing.", s
->meta
.id
);
1064 if (s
->type
!= SERVICE_ONESHOT
&&
1065 s
->exec_command
[SERVICE_EXEC_START
]->command_next
) {
1066 log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", s
->meta
.id
);
1070 if (s
->type
== SERVICE_ONESHOT
&&
1071 s
->exec_command
[SERVICE_EXEC_RELOAD
]) {
1072 log_error("%s has an ExecReload setting, which is not allowed for Type=oneshot services. Refusing.", s
->meta
.id
);
1076 if (s
->type
== SERVICE_DBUS
&& !s
->bus_name
) {
1077 log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", s
->meta
.id
);
1081 if (s
->exec_context
.pam_name
&& s
->exec_context
.kill_mode
!= KILL_CONTROL_GROUP
) {
1082 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s
->meta
.id
);
1089 static int service_add_default_dependencies(Service
*s
) {
1094 /* Add a number of automatic dependencies useful for the
1095 * majority of services. */
1097 /* First, pull in base system */
1098 if (s
->meta
.manager
->running_as
== MANAGER_SYSTEM
) {
1100 if ((r
= unit_add_two_dependencies_by_name(UNIT(s
), UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_BASIC_TARGET
, NULL
, true)) < 0)
1103 } else if (s
->meta
.manager
->running_as
== MANAGER_USER
) {
1105 if ((r
= unit_add_two_dependencies_by_name(UNIT(s
), UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_SOCKETS_TARGET
, NULL
, true)) < 0)
1109 /* Second, activate normal shutdown */
1110 return unit_add_two_dependencies_by_name(UNIT(s
), UNIT_BEFORE
, UNIT_CONFLICTS
, SPECIAL_SHUTDOWN_TARGET
, NULL
, true);
1113 static int service_load(Unit
*u
) {
1115 Service
*s
= SERVICE(u
);
1119 /* Load a .service file */
1120 if ((r
= unit_load_fragment(u
)) < 0)
1123 #ifdef HAVE_SYSV_COMPAT
1124 /* Load a classic init script as a fallback, if we couldn't find anything */
1125 if (u
->meta
.load_state
== UNIT_STUB
)
1126 if ((r
= service_load_sysv(s
)) < 0)
1130 /* Still nothing found? Then let's give up */
1131 if (u
->meta
.load_state
== UNIT_STUB
)
1134 /* We were able to load something, then let's add in the
1135 * dropin directories. */
1136 if ((r
= unit_load_dropin(unit_follow_merge(u
))) < 0)
1139 /* This is a new unit? Then let's add in some extras */
1140 if (u
->meta
.load_state
== UNIT_LOADED
) {
1141 if ((r
= unit_add_exec_dependencies(u
, &s
->exec_context
)) < 0)
1144 if ((r
= unit_add_default_cgroups(u
)) < 0)
1147 #ifdef HAVE_SYSV_COMPAT
1148 if ((r
= sysv_fix_order(s
)) < 0)
1152 if ((r
= fsck_fix_order(s
)) < 0)
1156 if ((r
= unit_watch_bus_name(u
, s
->bus_name
)) < 0)
1159 if (s
->type
== SERVICE_NOTIFY
&& s
->notify_access
== NOTIFY_NONE
)
1160 s
->notify_access
= NOTIFY_MAIN
;
1162 if (s
->type
== SERVICE_DBUS
|| s
->bus_name
)
1163 if ((r
= unit_add_two_dependencies_by_name(u
, UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_DBUS_SOCKET
, NULL
, true)) < 0)
1166 if (s
->meta
.default_dependencies
)
1167 if ((r
= service_add_default_dependencies(s
)) < 0)
1171 return service_verify(s
);
1174 static void service_dump(Unit
*u
, FILE *f
, const char *prefix
) {
1176 ServiceExecCommand c
;
1177 Service
*s
= SERVICE(u
);
1178 const char *prefix2
;
1183 p2
= strappend(prefix
, "\t");
1184 prefix2
= p2
? p2
: prefix
;
1187 "%sService State: %s\n"
1188 "%sPermissionsStartOnly: %s\n"
1189 "%sRootDirectoryStartOnly: %s\n"
1190 "%sRemainAfterExit: %s\n"
1191 "%sGuessMainPID: %s\n"
1194 "%sNotifyAccess: %s\n",
1195 prefix
, service_state_to_string(s
->state
),
1196 prefix
, yes_no(s
->permissions_start_only
),
1197 prefix
, yes_no(s
->root_directory_start_only
),
1198 prefix
, yes_no(s
->remain_after_exit
),
1199 prefix
, yes_no(s
->guess_main_pid
),
1200 prefix
, service_type_to_string(s
->type
),
1201 prefix
, service_restart_to_string(s
->restart
),
1202 prefix
, notify_access_to_string(s
->notify_access
));
1204 if (s
->control_pid
> 0)
1206 "%sControl PID: %lu\n",
1207 prefix
, (unsigned long) s
->control_pid
);
1209 if (s
->main_pid
> 0)
1212 "%sMain PID Known: %s\n"
1213 "%sMain PID Alien: %s\n",
1214 prefix
, (unsigned long) s
->main_pid
,
1215 prefix
, yes_no(s
->main_pid_known
),
1216 prefix
, yes_no(s
->main_pid_alien
));
1221 prefix
, s
->pid_file
);
1226 "%sBus Name Good: %s\n",
1227 prefix
, s
->bus_name
,
1228 prefix
, yes_no(s
->bus_name_good
));
1230 exec_context_dump(&s
->exec_context
, f
, prefix
);
1232 for (c
= 0; c
< _SERVICE_EXEC_COMMAND_MAX
; c
++) {
1234 if (!s
->exec_command
[c
])
1237 fprintf(f
, "%s-> %s:\n",
1238 prefix
, service_exec_command_to_string(c
));
1240 exec_command_dump_list(s
->exec_command
[c
], f
, prefix2
);
1243 #ifdef HAVE_SYSV_COMPAT
1246 "%sSysV Init Script Path: %s\n"
1247 "%sSysV Init Script has LSB Header: %s\n"
1248 "%sSysVEnabled: %s\n",
1249 prefix
, s
->sysv_path
,
1250 prefix
, yes_no(s
->sysv_has_lsb
),
1251 prefix
, yes_no(s
->sysv_enabled
));
1253 if (s
->sysv_start_priority
>= 0)
1255 "%sSysVStartPriority: %i\n",
1256 prefix
, s
->sysv_start_priority
);
1258 if (s
->sysv_runlevels
)
1259 fprintf(f
, "%sSysVRunLevels: %s\n",
1260 prefix
, s
->sysv_runlevels
);
1263 if (s
->fsck_passno
> 0)
1265 "%sFsckPassNo: %i\n",
1266 prefix
, s
->fsck_passno
);
1269 fprintf(f
, "%sStatus Text: %s\n",
1270 prefix
, s
->status_text
);
1275 static int service_load_pid_file(Service
*s
) {
1282 if (s
->main_pid_known
)
1288 if ((r
= read_one_line_file(s
->pid_file
, &k
)) < 0)
1291 r
= parse_pid(k
, &pid
);
1297 if (kill(pid
, 0) < 0 && errno
!= EPERM
) {
1298 log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
1299 (unsigned long) pid
, s
->pid_file
);
1303 if ((r
= service_set_main_pid(s
, pid
)) < 0)
1306 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1307 /* FIXME: we need to do something here */
1313 static int service_search_main_pid(Service
*s
) {
1319 /* If we know it anyway, don't ever fallback to unreliable
1321 if (s
->main_pid_known
)
1324 if (!s
->guess_main_pid
)
1327 assert(s
->main_pid
<= 0);
1329 if ((pid
= cgroup_bonding_search_main_pid_list(s
->meta
.cgroup_bondings
)) <= 0)
1332 if ((r
= service_set_main_pid(s
, pid
)) < 0)
1335 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1336 /* FIXME: we need to do something here */
1342 static int service_get_sockets(Service
*s
, Set
**_set
) {
1351 if (s
->socket_fd
>= 0)
1354 if (!set_isempty(s
->configured_sockets
))
1357 /* Collects all Socket objects that belong to this
1358 * service. Note that a service might have multiple sockets
1359 * via multiple names. */
1361 if (!(set
= set_new(NULL
, NULL
)))
1364 SET_FOREACH(t
, s
->meta
.names
, i
) {
1368 /* Look for all socket objects that go by any of our
1369 * units and collect their fds */
1371 if (!(k
= unit_name_change_suffix(t
, ".socket"))) {
1376 p
= manager_get_unit(s
->meta
.manager
, k
);
1382 if ((r
= set_put(set
, p
)) < 0)
1394 static int service_notify_sockets_dead(Service
*s
) {
1396 Set
*set
, *free_set
= NULL
;
1402 /* Notifies all our sockets when we die */
1404 if (s
->socket_fd
>= 0)
1407 if (!set_isempty(s
->configured_sockets
))
1408 set
= s
->configured_sockets
;
1410 if ((r
= service_get_sockets(s
, &free_set
)) < 0)
1416 SET_FOREACH(sock
, set
, i
)
1417 socket_notify_service_dead(sock
);
1424 static void service_set_state(Service
*s
, ServiceState state
) {
1425 ServiceState old_state
;
1428 old_state
= s
->state
;
1431 if (state
!= SERVICE_START_PRE
&&
1432 state
!= SERVICE_START
&&
1433 state
!= SERVICE_START_POST
&&
1434 state
!= SERVICE_RELOAD
&&
1435 state
!= SERVICE_STOP
&&
1436 state
!= SERVICE_STOP_SIGTERM
&&
1437 state
!= SERVICE_STOP_SIGKILL
&&
1438 state
!= SERVICE_STOP_POST
&&
1439 state
!= SERVICE_FINAL_SIGTERM
&&
1440 state
!= SERVICE_FINAL_SIGKILL
&&
1441 state
!= SERVICE_AUTO_RESTART
)
1442 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1444 if (state
!= SERVICE_START
&&
1445 state
!= SERVICE_START_POST
&&
1446 state
!= SERVICE_RUNNING
&&
1447 state
!= SERVICE_RELOAD
&&
1448 state
!= SERVICE_STOP
&&
1449 state
!= SERVICE_STOP_SIGTERM
&&
1450 state
!= SERVICE_STOP_SIGKILL
) {
1451 service_unwatch_main_pid(s
);
1452 s
->main_command
= NULL
;
1455 if (state
!= SERVICE_START_PRE
&&
1456 state
!= SERVICE_START
&&
1457 state
!= SERVICE_START_POST
&&
1458 state
!= SERVICE_RELOAD
&&
1459 state
!= SERVICE_STOP
&&
1460 state
!= SERVICE_STOP_SIGTERM
&&
1461 state
!= SERVICE_STOP_SIGKILL
&&
1462 state
!= SERVICE_STOP_POST
&&
1463 state
!= SERVICE_FINAL_SIGTERM
&&
1464 state
!= SERVICE_FINAL_SIGKILL
) {
1465 service_unwatch_control_pid(s
);
1466 s
->control_command
= NULL
;
1467 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
1470 if (state
== SERVICE_DEAD
||
1471 state
== SERVICE_STOP
||
1472 state
== SERVICE_STOP_SIGTERM
||
1473 state
== SERVICE_STOP_SIGKILL
||
1474 state
== SERVICE_STOP_POST
||
1475 state
== SERVICE_FINAL_SIGTERM
||
1476 state
== SERVICE_FINAL_SIGKILL
||
1477 state
== SERVICE_FAILED
||
1478 state
== SERVICE_AUTO_RESTART
)
1479 service_notify_sockets_dead(s
);
1481 if (state
!= SERVICE_START_PRE
&&
1482 state
!= SERVICE_START
&&
1483 state
!= SERVICE_START_POST
&&
1484 state
!= SERVICE_RUNNING
&&
1485 state
!= SERVICE_RELOAD
&&
1486 state
!= SERVICE_STOP
&&
1487 state
!= SERVICE_STOP_SIGTERM
&&
1488 state
!= SERVICE_STOP_SIGKILL
&&
1489 state
!= SERVICE_STOP_POST
&&
1490 state
!= SERVICE_FINAL_SIGTERM
&&
1491 state
!= SERVICE_FINAL_SIGKILL
&&
1492 !(state
== SERVICE_DEAD
&& s
->meta
.job
)) {
1493 service_close_socket_fd(s
);
1494 service_connection_unref(s
);
1497 /* For the inactive states unit_notify() will trim the cgroup,
1498 * but for exit we have to do that ourselves... */
1499 if (state
== SERVICE_EXITED
&& s
->meta
.manager
->n_reloading
<= 0)
1500 cgroup_bonding_trim_list(s
->meta
.cgroup_bondings
, true);
1502 if (old_state
!= state
)
1503 log_debug("%s changed %s -> %s", s
->meta
.id
, service_state_to_string(old_state
), service_state_to_string(state
));
1505 unit_notify(UNIT(s
), state_translation_table
[old_state
], state_translation_table
[state
], !s
->reload_failure
);
1506 s
->reload_failure
= false;
1509 static int service_coldplug(Unit
*u
) {
1510 Service
*s
= SERVICE(u
);
1514 assert(s
->state
== SERVICE_DEAD
);
1516 if (s
->deserialized_state
!= s
->state
) {
1518 if (s
->deserialized_state
== SERVICE_START_PRE
||
1519 s
->deserialized_state
== SERVICE_START
||
1520 s
->deserialized_state
== SERVICE_START_POST
||
1521 s
->deserialized_state
== SERVICE_RELOAD
||
1522 s
->deserialized_state
== SERVICE_STOP
||
1523 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1524 s
->deserialized_state
== SERVICE_STOP_SIGKILL
||
1525 s
->deserialized_state
== SERVICE_STOP_POST
||
1526 s
->deserialized_state
== SERVICE_FINAL_SIGTERM
||
1527 s
->deserialized_state
== SERVICE_FINAL_SIGKILL
||
1528 s
->deserialized_state
== SERVICE_AUTO_RESTART
) {
1530 if (s
->deserialized_state
== SERVICE_AUTO_RESTART
|| s
->timeout_usec
> 0) {
1533 k
= s
->deserialized_state
== SERVICE_AUTO_RESTART
? s
->restart_usec
: s
->timeout_usec
;
1535 if ((r
= unit_watch_timer(UNIT(s
), k
, &s
->timer_watch
)) < 0)
1540 if ((s
->deserialized_state
== SERVICE_START
&&
1541 (s
->type
== SERVICE_FORKING
||
1542 s
->type
== SERVICE_DBUS
||
1543 s
->type
== SERVICE_ONESHOT
||
1544 s
->type
== SERVICE_NOTIFY
)) ||
1545 s
->deserialized_state
== SERVICE_START_POST
||
1546 s
->deserialized_state
== SERVICE_RUNNING
||
1547 s
->deserialized_state
== SERVICE_RELOAD
||
1548 s
->deserialized_state
== SERVICE_STOP
||
1549 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1550 s
->deserialized_state
== SERVICE_STOP_SIGKILL
)
1551 if (s
->main_pid
> 0)
1552 if ((r
= unit_watch_pid(UNIT(s
), s
->main_pid
)) < 0)
1555 if (s
->deserialized_state
== SERVICE_START_PRE
||
1556 s
->deserialized_state
== SERVICE_START
||
1557 s
->deserialized_state
== SERVICE_START_POST
||
1558 s
->deserialized_state
== SERVICE_RELOAD
||
1559 s
->deserialized_state
== SERVICE_STOP
||
1560 s
->deserialized_state
== SERVICE_STOP_SIGTERM
||
1561 s
->deserialized_state
== SERVICE_STOP_SIGKILL
||
1562 s
->deserialized_state
== SERVICE_STOP_POST
||
1563 s
->deserialized_state
== SERVICE_FINAL_SIGTERM
||
1564 s
->deserialized_state
== SERVICE_FINAL_SIGKILL
)
1565 if (s
->control_pid
> 0)
1566 if ((r
= unit_watch_pid(UNIT(s
), s
->control_pid
)) < 0)
1569 service_set_state(s
, s
->deserialized_state
);
1575 static int service_collect_fds(Service
*s
, int **fds
, unsigned *n_fds
) {
1579 unsigned rn_fds
= 0;
1580 Set
*set
, *free_set
= NULL
;
1587 if (s
->socket_fd
>= 0)
1590 if (!set_isempty(s
->configured_sockets
))
1591 set
= s
->configured_sockets
;
1593 if ((r
= service_get_sockets(s
, &free_set
)) < 0)
1599 SET_FOREACH(sock
, set
, i
) {
1603 if ((r
= socket_collect_fds(sock
, &cfds
, &cn_fds
)) < 0)
1615 if (!(t
= new(int, rn_fds
+cn_fds
))) {
1621 memcpy(t
, rfds
, rn_fds
* sizeof(int));
1622 memcpy(t
+rn_fds
, cfds
, cn_fds
* sizeof(int));
1627 rn_fds
= rn_fds
+cn_fds
;
1645 static int service_spawn(
1650 bool apply_permissions
,
1652 bool apply_tty_stdin
,
1653 bool set_notify_socket
,
1658 int *fds
= NULL
, *fdsbuf
= NULL
;
1659 unsigned n_fds
= 0, n_env
= 0;
1660 char **argv
= NULL
, **final_env
= NULL
, **our_env
= NULL
;
1667 s
->exec_context
.std_input
== EXEC_INPUT_SOCKET
||
1668 s
->exec_context
.std_output
== EXEC_OUTPUT_SOCKET
||
1669 s
->exec_context
.std_error
== EXEC_OUTPUT_SOCKET
) {
1671 if (s
->socket_fd
>= 0) {
1672 fds
= &s
->socket_fd
;
1675 if ((r
= service_collect_fds(s
, &fdsbuf
, &n_fds
)) < 0)
1682 if (timeout
&& s
->timeout_usec
) {
1683 if ((r
= unit_watch_timer(UNIT(s
), s
->timeout_usec
, &s
->timer_watch
)) < 0)
1686 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1688 if (!(argv
= unit_full_printf_strv(UNIT(s
), c
->argv
))) {
1693 if (!(our_env
= new0(char*, 4))) {
1698 if (set_notify_socket
)
1699 if (asprintf(our_env
+ n_env
++, "NOTIFY_SOCKET=%s", s
->meta
.manager
->notify_socket
) < 0) {
1704 if (s
->main_pid
> 0)
1705 if (asprintf(our_env
+ n_env
++, "MAINPID=%lu", (unsigned long) s
->main_pid
) < 0) {
1710 if (!(final_env
= strv_env_merge(2,
1711 s
->meta
.manager
->environment
,
1726 s
->meta
.manager
->confirm_spawn
,
1727 s
->meta
.cgroup_bondings
,
1734 if ((r
= unit_watch_pid(UNIT(s
), pid
)) < 0)
1735 /* FIXME: we need to do something here */
1741 strv_free(final_env
);
1751 strv_free(final_env
);
1754 unit_unwatch_timer(UNIT(s
), &s
->timer_watch
);
1759 static int main_pid_good(Service
*s
) {
1762 /* Returns 0 if the pid is dead, 1 if it is good, -1 if we
1765 /* If we know the pid file, then lets just check if it is
1767 if (s
->main_pid_known
) {
1769 /* If it's an alien child let's check if it is still
1771 if (s
->main_pid_alien
)
1772 return kill(s
->main_pid
, 0) >= 0 || errno
!= ESRCH
;
1774 /* .. otherwise assume we'll get a SIGCHLD for it,
1775 * which we really should wait for to collect exit
1776 * status and code */
1777 return s
->main_pid
> 0;
1780 /* We don't know the pid */
1784 static int control_pid_good(Service
*s
) {
1787 return s
->control_pid
> 0;
1790 static int cgroup_good(Service
*s
) {
1795 if ((r
= cgroup_bonding_is_empty_list(s
->meta
.cgroup_bondings
)) < 0)
1801 static void service_enter_dead(Service
*s
, bool success
, bool allow_restart
) {
1808 if (allow_restart
&&
1809 !s
->forbid_restart
&&
1810 (s
->restart
== SERVICE_RESTART_ALWAYS
||
1811 (s
->restart
== SERVICE_RESTART_ON_SUCCESS
&& !s
->failure
) ||
1812 (s
->restart
== SERVICE_RESTART_ON_FAILURE
&& s
->failure
) ||
1813 (s
->restart
== SERVICE_RESTART_ON_ABORT
&& s
->failure
&&
1814 (s
->main_exec_status
.code
== CLD_KILLED
||
1815 s
->main_exec_status
.code
== CLD_DUMPED
)))) {
1817 if ((r
= unit_watch_timer(UNIT(s
), s
->restart_usec
, &s
->timer_watch
)) < 0)
1820 service_set_state(s
, SERVICE_AUTO_RESTART
);
1822 service_set_state(s
, s
->failure
? SERVICE_FAILED
: SERVICE_DEAD
);
1824 s
->forbid_restart
= false;
1829 log_warning("%s failed to run install restart timer: %s", s
->meta
.id
, strerror(-r
));
1830 service_enter_dead(s
, false, false);
1833 static void service_enter_signal(Service
*s
, ServiceState state
, bool success
);
1835 static void service_enter_stop_post(Service
*s
, bool success
) {
1842 service_unwatch_control_pid(s
);
1844 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP_POST
])) {
1845 s
->control_command_id
= SERVICE_EXEC_STOP_POST
;
1847 if ((r
= service_spawn(s
,
1851 !s
->permissions_start_only
,
1852 !s
->root_directory_start_only
,
1855 &s
->control_pid
)) < 0)
1859 service_set_state(s
, SERVICE_STOP_POST
);
1861 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, true);
1866 log_warning("%s failed to run 'stop-post' task: %s", s
->meta
.id
, strerror(-r
));
1867 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
1870 static void service_enter_signal(Service
*s
, ServiceState state
, bool success
) {
1872 Set
*pid_set
= NULL
;
1873 bool wait_for_exit
= false;
1880 if (s
->exec_context
.kill_mode
!= KILL_NONE
) {
1881 int sig
= (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_FINAL_SIGTERM
) ? s
->exec_context
.kill_signal
: SIGKILL
;
1883 if (s
->main_pid
> 0) {
1884 if (kill_and_sigcont(s
->main_pid
, sig
) < 0 && errno
!= ESRCH
)
1885 log_warning("Failed to kill main process %li: %m", (long) s
->main_pid
);
1887 wait_for_exit
= !s
->main_pid_alien
;
1890 if (s
->control_pid
> 0) {
1891 if (kill_and_sigcont(s
->control_pid
, sig
) < 0 && errno
!= ESRCH
)
1892 log_warning("Failed to kill control process %li: %m", (long) s
->control_pid
);
1894 wait_for_exit
= true;
1897 if (s
->exec_context
.kill_mode
== KILL_CONTROL_GROUP
) {
1899 if (!(pid_set
= set_new(trivial_hash_func
, trivial_compare_func
))) {
1904 /* Exclude the main/control pids from being killed via the cgroup */
1905 if (s
->main_pid
> 0)
1906 if ((r
= set_put(pid_set
, LONG_TO_PTR(s
->main_pid
))) < 0)
1909 if (s
->control_pid
> 0)
1910 if ((r
= set_put(pid_set
, LONG_TO_PTR(s
->control_pid
))) < 0)
1913 if ((r
= cgroup_bonding_kill_list(s
->meta
.cgroup_bondings
, sig
, true, pid_set
)) < 0) {
1914 if (r
!= -EAGAIN
&& r
!= -ESRCH
&& r
!= -ENOENT
)
1915 log_warning("Failed to kill control group: %s", strerror(-r
));
1917 wait_for_exit
= true;
1924 if (wait_for_exit
) {
1925 if (s
->timeout_usec
> 0)
1926 if ((r
= unit_watch_timer(UNIT(s
), s
->timeout_usec
, &s
->timer_watch
)) < 0)
1929 service_set_state(s
, state
);
1930 } else if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
1931 service_enter_stop_post(s
, true);
1933 service_enter_dead(s
, true, true);
1938 log_warning("%s failed to kill processes: %s", s
->meta
.id
, strerror(-r
));
1940 if (state
== SERVICE_STOP_SIGTERM
|| state
== SERVICE_STOP_SIGKILL
)
1941 service_enter_stop_post(s
, false);
1943 service_enter_dead(s
, false, true);
1949 static void service_enter_stop(Service
*s
, bool success
) {
1957 service_unwatch_control_pid(s
);
1959 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_STOP
])) {
1960 s
->control_command_id
= SERVICE_EXEC_STOP
;
1962 if ((r
= service_spawn(s
,
1966 !s
->permissions_start_only
,
1967 !s
->root_directory_start_only
,
1970 &s
->control_pid
)) < 0)
1973 service_set_state(s
, SERVICE_STOP
);
1975 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, true);
1980 log_warning("%s failed to run 'stop' task: %s", s
->meta
.id
, strerror(-r
));
1981 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
1984 static void service_enter_running(Service
*s
, bool success
) {
1985 int main_pid_ok
, cgroup_ok
;
1991 main_pid_ok
= main_pid_good(s
);
1992 cgroup_ok
= cgroup_good(s
);
1994 if ((main_pid_ok
> 0 || (main_pid_ok
< 0 && cgroup_ok
!= 0)) &&
1995 (s
->bus_name_good
|| s
->type
!= SERVICE_DBUS
))
1996 service_set_state(s
, SERVICE_RUNNING
);
1997 else if (s
->remain_after_exit
)
1998 service_set_state(s
, SERVICE_EXITED
);
2000 service_enter_stop(s
, true);
2003 static void service_enter_start_post(Service
*s
) {
2007 service_unwatch_control_pid(s
);
2009 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_POST
])) {
2010 s
->control_command_id
= SERVICE_EXEC_START_POST
;
2012 if ((r
= service_spawn(s
,
2016 !s
->permissions_start_only
,
2017 !s
->root_directory_start_only
,
2020 &s
->control_pid
)) < 0)
2023 service_set_state(s
, SERVICE_START_POST
);
2025 service_enter_running(s
, true);
2030 log_warning("%s failed to run 'start-post' task: %s", s
->meta
.id
, strerror(-r
));
2031 service_enter_stop(s
, false);
2034 static void service_enter_start(Service
*s
) {
2041 assert(s
->exec_command
[SERVICE_EXEC_START
]);
2042 assert(!s
->exec_command
[SERVICE_EXEC_START
]->command_next
|| s
->type
== SERVICE_ONESHOT
);
2044 if (s
->type
== SERVICE_FORKING
)
2045 service_unwatch_control_pid(s
);
2047 service_unwatch_main_pid(s
);
2049 if (s
->type
== SERVICE_FORKING
) {
2050 s
->control_command_id
= SERVICE_EXEC_START
;
2051 c
= s
->control_command
= s
->exec_command
[SERVICE_EXEC_START
];
2053 s
->main_command
= NULL
;
2055 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
2056 s
->control_command
= NULL
;
2058 c
= s
->main_command
= s
->exec_command
[SERVICE_EXEC_START
];
2061 if ((r
= service_spawn(s
,
2063 s
->type
== SERVICE_FORKING
|| s
->type
== SERVICE_DBUS
|| s
->type
== SERVICE_NOTIFY
,
2068 s
->notify_access
!= NOTIFY_NONE
,
2072 if (s
->type
== SERVICE_SIMPLE
) {
2073 /* For simple services we immediately start
2074 * the START_POST binaries. */
2076 service_set_main_pid(s
, pid
);
2077 service_enter_start_post(s
);
2079 } else if (s
->type
== SERVICE_FORKING
) {
2081 /* For forking services we wait until the start
2082 * process exited. */
2084 s
->control_pid
= pid
;
2085 service_set_state(s
, SERVICE_START
);
2087 } else if (s
->type
== SERVICE_ONESHOT
||
2088 s
->type
== SERVICE_DBUS
||
2089 s
->type
== SERVICE_NOTIFY
) {
2091 /* For oneshot services we wait until the start
2092 * process exited, too, but it is our main process. */
2094 /* For D-Bus services we know the main pid right away,
2095 * but wait for the bus name to appear on the
2096 * bus. Notify services are similar. */
2098 service_set_main_pid(s
, pid
);
2099 service_set_state(s
, SERVICE_START
);
2101 assert_not_reached("Unknown service type");
2106 log_warning("%s failed to run 'start' task: %s", s
->meta
.id
, strerror(-r
));
2107 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2110 static void service_enter_start_pre(Service
*s
) {
2115 service_unwatch_control_pid(s
);
2117 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_START_PRE
])) {
2118 s
->control_command_id
= SERVICE_EXEC_START_PRE
;
2120 if ((r
= service_spawn(s
,
2124 !s
->permissions_start_only
,
2125 !s
->root_directory_start_only
,
2128 &s
->control_pid
)) < 0)
2131 service_set_state(s
, SERVICE_START_PRE
);
2133 service_enter_start(s
);
2138 log_warning("%s failed to run 'start-pre' task: %s", s
->meta
.id
, strerror(-r
));
2139 service_enter_dead(s
, false, true);
2142 static void service_enter_restart(Service
*s
) {
2147 dbus_error_init(&error
);
2150 log_info("Job pending for unit, delaying automatic restart.");
2152 if ((r
= unit_watch_timer(UNIT(s
), s
->restart_usec
, &s
->timer_watch
)) < 0)
2156 service_enter_dead(s
, true, false);
2158 if ((r
= manager_add_job(s
->meta
.manager
, JOB_START
, UNIT(s
), JOB_FAIL
, false, &error
, NULL
)) < 0)
2161 log_debug("%s scheduled restart job.", s
->meta
.id
);
2165 log_warning("%s failed to schedule restart job: %s", s
->meta
.id
, bus_error(&error
, -r
));
2166 service_enter_dead(s
, false, false);
2168 dbus_error_free(&error
);
2171 static void service_enter_reload(Service
*s
) {
2176 service_unwatch_control_pid(s
);
2178 if ((s
->control_command
= s
->exec_command
[SERVICE_EXEC_RELOAD
])) {
2179 s
->control_command_id
= SERVICE_EXEC_RELOAD
;
2181 if ((r
= service_spawn(s
,
2185 !s
->permissions_start_only
,
2186 !s
->root_directory_start_only
,
2189 &s
->control_pid
)) < 0)
2192 service_set_state(s
, SERVICE_RELOAD
);
2194 service_enter_running(s
, true);
2199 log_warning("%s failed to run 'reload' task: %s", s
->meta
.id
, strerror(-r
));
2200 s
->reload_failure
= true;
2201 service_enter_running(s
, true);
2204 static void service_run_next_control(Service
*s
, bool success
) {
2208 assert(s
->control_command
);
2209 assert(s
->control_command
->command_next
);
2214 assert(s
->control_command_id
!= SERVICE_EXEC_START
);
2216 s
->control_command
= s
->control_command
->command_next
;
2217 service_unwatch_control_pid(s
);
2219 if ((r
= service_spawn(s
,
2223 !s
->permissions_start_only
,
2224 !s
->root_directory_start_only
,
2225 s
->control_command_id
== SERVICE_EXEC_START_PRE
||
2226 s
->control_command_id
== SERVICE_EXEC_STOP_POST
,
2228 &s
->control_pid
)) < 0)
2234 log_warning("%s failed to run next control task: %s", s
->meta
.id
, strerror(-r
));
2236 if (s
->state
== SERVICE_START_PRE
)
2237 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2238 else if (s
->state
== SERVICE_STOP
)
2239 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
2240 else if (s
->state
== SERVICE_STOP_POST
)
2241 service_enter_dead(s
, false, true);
2242 else if (s
->state
== SERVICE_RELOAD
) {
2243 s
->reload_failure
= true;
2244 service_enter_running(s
, true);
2246 service_enter_stop(s
, false);
2249 static void service_run_next_main(Service
*s
, bool success
) {
2254 assert(s
->main_command
);
2255 assert(s
->main_command
->command_next
);
2256 assert(s
->type
== SERVICE_ONESHOT
);
2261 s
->main_command
= s
->main_command
->command_next
;
2262 service_unwatch_main_pid(s
);
2264 if ((r
= service_spawn(s
,
2271 s
->notify_access
!= NOTIFY_NONE
,
2275 service_set_main_pid(s
, pid
);
2280 log_warning("%s failed to run next main task: %s", s
->meta
.id
, strerror(-r
));
2281 service_enter_stop(s
, false);
2284 static int service_start(Unit
*u
) {
2285 Service
*s
= SERVICE(u
);
2289 /* We cannot fulfill this request right now, try again later
2291 if (s
->state
== SERVICE_STOP
||
2292 s
->state
== SERVICE_STOP_SIGTERM
||
2293 s
->state
== SERVICE_STOP_SIGKILL
||
2294 s
->state
== SERVICE_STOP_POST
||
2295 s
->state
== SERVICE_FINAL_SIGTERM
||
2296 s
->state
== SERVICE_FINAL_SIGKILL
)
2299 /* Already on it! */
2300 if (s
->state
== SERVICE_START_PRE
||
2301 s
->state
== SERVICE_START
||
2302 s
->state
== SERVICE_START_POST
)
2305 assert(s
->state
== SERVICE_DEAD
|| s
->state
== SERVICE_FAILED
|| s
->state
== SERVICE_AUTO_RESTART
);
2307 /* Make sure we don't enter a busy loop of some kind. */
2308 if (!ratelimit_test(&s
->ratelimit
)) {
2309 log_warning("%s start request repeated too quickly, refusing to start.", u
->meta
.id
);
2314 s
->main_pid_known
= false;
2315 s
->main_pid_alien
= false;
2316 s
->forbid_restart
= false;
2318 service_enter_start_pre(s
);
2322 static int service_stop(Unit
*u
) {
2323 Service
*s
= SERVICE(u
);
2327 /* This is a user request, so don't do restarts on this
2329 s
->forbid_restart
= true;
2332 if (s
->state
== SERVICE_STOP
||
2333 s
->state
== SERVICE_STOP_SIGTERM
||
2334 s
->state
== SERVICE_STOP_SIGKILL
||
2335 s
->state
== SERVICE_STOP_POST
||
2336 s
->state
== SERVICE_FINAL_SIGTERM
||
2337 s
->state
== SERVICE_FINAL_SIGKILL
)
2340 /* Don't allow a restart */
2341 if (s
->state
== SERVICE_AUTO_RESTART
) {
2342 service_set_state(s
, SERVICE_DEAD
);
2346 /* If there's already something running we go directly into
2348 if (s
->state
== SERVICE_START_PRE
||
2349 s
->state
== SERVICE_START
||
2350 s
->state
== SERVICE_START_POST
||
2351 s
->state
== SERVICE_RELOAD
) {
2352 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, true);
2356 assert(s
->state
== SERVICE_RUNNING
||
2357 s
->state
== SERVICE_EXITED
);
2359 service_enter_stop(s
, true);
2363 static int service_reload(Unit
*u
) {
2364 Service
*s
= SERVICE(u
);
2368 assert(s
->state
== SERVICE_RUNNING
|| s
->state
== SERVICE_EXITED
);
2370 service_enter_reload(s
);
2374 static bool service_can_reload(Unit
*u
) {
2375 Service
*s
= SERVICE(u
);
2379 return !!s
->exec_command
[SERVICE_EXEC_RELOAD
];
2382 static int service_serialize(Unit
*u
, FILE *f
, FDSet
*fds
) {
2383 Service
*s
= SERVICE(u
);
2389 unit_serialize_item(u
, f
, "state", service_state_to_string(s
->state
));
2390 unit_serialize_item(u
, f
, "failure", yes_no(s
->failure
));
2392 if (s
->control_pid
> 0)
2393 unit_serialize_item_format(u
, f
, "control-pid", "%lu", (unsigned long) s
->control_pid
);
2395 if (s
->main_pid_known
&& s
->main_pid
> 0)
2396 unit_serialize_item_format(u
, f
, "main-pid", "%lu", (unsigned long) s
->main_pid
);
2398 unit_serialize_item(u
, f
, "main-pid-known", yes_no(s
->main_pid_known
));
2401 unit_serialize_item(u
, f
, "status-text", s
->status_text
);
2403 /* There's a minor uncleanliness here: if there are multiple
2404 * commands attached here, we will start from the first one
2406 if (s
->control_command_id
>= 0)
2407 unit_serialize_item(u
, f
, "control-command", service_exec_command_to_string(s
->control_command_id
));
2409 if (s
->socket_fd
>= 0) {
2412 if ((copy
= fdset_put_dup(fds
, s
->socket_fd
)) < 0)
2415 unit_serialize_item_format(u
, f
, "socket-fd", "%i", copy
);
2418 if (s
->main_exec_status
.pid
> 0) {
2419 unit_serialize_item_format(u
, f
, "main-exec-status-pid", "%lu", (unsigned long) s
->main_exec_status
.pid
);
2420 dual_timestamp_serialize(f
, "main-exec-status-start", &s
->main_exec_status
.start_timestamp
);
2421 dual_timestamp_serialize(f
, "main-exec-status-exit", &s
->main_exec_status
.exit_timestamp
);
2423 if (dual_timestamp_is_set(&s
->main_exec_status
.exit_timestamp
)) {
2424 unit_serialize_item_format(u
, f
, "main-exec-status-code", "%i", s
->main_exec_status
.code
);
2425 unit_serialize_item_format(u
, f
, "main-exec-status-status", "%i", s
->main_exec_status
.status
);
2432 static int service_deserialize_item(Unit
*u
, const char *key
, const char *value
, FDSet
*fds
) {
2433 Service
*s
= SERVICE(u
);
2440 if (streq(key
, "state")) {
2443 if ((state
= service_state_from_string(value
)) < 0)
2444 log_debug("Failed to parse state value %s", value
);
2446 s
->deserialized_state
= state
;
2447 } else if (streq(key
, "failure")) {
2450 if ((b
= parse_boolean(value
)) < 0)
2451 log_debug("Failed to parse failure value %s", value
);
2453 s
->failure
= b
|| s
->failure
;
2454 } else if (streq(key
, "control-pid")) {
2457 if (parse_pid(value
, &pid
) < 0)
2458 log_debug("Failed to parse control-pid value %s", value
);
2460 s
->control_pid
= pid
;
2461 } else if (streq(key
, "main-pid")) {
2464 if (parse_pid(value
, &pid
) < 0)
2465 log_debug("Failed to parse main-pid value %s", value
);
2467 service_set_main_pid(s
, (pid_t
) pid
);
2468 } else if (streq(key
, "main-pid-known")) {
2471 if ((b
= parse_boolean(value
)) < 0)
2472 log_debug("Failed to parse main-pid-known value %s", value
);
2474 s
->main_pid_known
= b
;
2475 } else if (streq(key
, "status-text")) {
2478 if ((t
= strdup(value
))) {
2479 free(s
->status_text
);
2483 } else if (streq(key
, "control-command")) {
2484 ServiceExecCommand id
;
2486 if ((id
= service_exec_command_from_string(value
)) < 0)
2487 log_debug("Failed to parse exec-command value %s", value
);
2489 s
->control_command_id
= id
;
2490 s
->control_command
= s
->exec_command
[id
];
2492 } else if (streq(key
, "socket-fd")) {
2495 if (safe_atoi(value
, &fd
) < 0 || fd
< 0 || !fdset_contains(fds
, fd
))
2496 log_debug("Failed to parse socket-fd value %s", value
);
2499 if (s
->socket_fd
>= 0)
2500 close_nointr_nofail(s
->socket_fd
);
2501 s
->socket_fd
= fdset_remove(fds
, fd
);
2503 } else if (streq(key
, "main-exec-status-pid")) {
2506 if (parse_pid(value
, &pid
) < 0)
2507 log_debug("Failed to parse main-exec-status-pid value %s", value
);
2509 s
->main_exec_status
.pid
= pid
;
2510 } else if (streq(key
, "main-exec-status-code")) {
2513 if (safe_atoi(value
, &i
) < 0)
2514 log_debug("Failed to parse main-exec-status-code value %s", value
);
2516 s
->main_exec_status
.code
= i
;
2517 } else if (streq(key
, "main-exec-status-status")) {
2520 if (safe_atoi(value
, &i
) < 0)
2521 log_debug("Failed to parse main-exec-status-status value %s", value
);
2523 s
->main_exec_status
.status
= i
;
2524 } else if (streq(key
, "main-exec-status-start"))
2525 dual_timestamp_deserialize(value
, &s
->main_exec_status
.start_timestamp
);
2526 else if (streq(key
, "main-exec-status-exit"))
2527 dual_timestamp_deserialize(value
, &s
->main_exec_status
.exit_timestamp
);
2529 log_debug("Unknown serialization key '%s'", key
);
2534 static UnitActiveState
service_active_state(Unit
*u
) {
2537 return state_translation_table
[SERVICE(u
)->state
];
2540 static const char *service_sub_state_to_string(Unit
*u
) {
2543 return service_state_to_string(SERVICE(u
)->state
);
2546 static bool service_check_gc(Unit
*u
) {
2547 Service
*s
= SERVICE(u
);
2551 /* Never clean up services that still have a process around,
2552 * even if the service is formally dead. */
2553 if (cgroup_good(s
) > 0 ||
2554 main_pid_good(s
) > 0 ||
2555 control_pid_good(s
) > 0)
2558 #ifdef HAVE_SYSV_COMPAT
2566 static bool service_check_snapshot(Unit
*u
) {
2567 Service
*s
= SERVICE(u
);
2571 return !s
->got_socket_fd
;
2574 static void service_sigchld_event(Unit
*u
, pid_t pid
, int code
, int status
) {
2575 Service
*s
= SERVICE(u
);
2581 if (!s
->meta
.fragment_path
)
2582 success
= is_clean_exit_lsb(code
, status
);
2584 success
= is_clean_exit(code
, status
);
2586 if (s
->main_pid
== pid
) {
2589 exec_status_exit(&s
->main_exec_status
, &s
->exec_context
, pid
, code
, status
);
2591 /* If this is not a forking service than the main
2592 * process got started and hence we copy the exit
2593 * status so that it is recorded both as main and as
2594 * control process exit status */
2595 if (s
->main_command
) {
2596 s
->main_command
->exec_status
= s
->main_exec_status
;
2598 if (s
->main_command
->ignore
)
2602 log_full(success
? LOG_DEBUG
: LOG_NOTICE
,
2603 "%s: main process exited, code=%s, status=%i", u
->meta
.id
, sigchld_code_to_string(code
), status
);
2604 s
->failure
= s
->failure
|| !success
;
2606 if (s
->main_command
&&
2607 s
->main_command
->command_next
&&
2610 /* There is another command to *
2611 * execute, so let's do that. */
2613 log_debug("%s running next main command for state %s", u
->meta
.id
, service_state_to_string(s
->state
));
2614 service_run_next_main(s
, success
);
2618 /* The service exited, so the service is officially
2620 s
->main_command
= NULL
;
2624 case SERVICE_START_POST
:
2625 case SERVICE_RELOAD
:
2627 /* Need to wait until the operation is
2632 if (s
->type
== SERVICE_ONESHOT
) {
2633 /* This was our main goal, so let's go on */
2635 service_enter_start_post(s
);
2637 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2640 assert(s
->type
== SERVICE_DBUS
|| s
->type
== SERVICE_NOTIFY
);
2645 case SERVICE_RUNNING
:
2646 service_enter_running(s
, success
);
2649 case SERVICE_STOP_SIGTERM
:
2650 case SERVICE_STOP_SIGKILL
:
2652 if (!control_pid_good(s
))
2653 service_enter_stop_post(s
, success
);
2655 /* If there is still a control process, wait for that first */
2659 assert_not_reached("Uh, main process died at wrong time.");
2663 } else if (s
->control_pid
== pid
) {
2667 if (s
->control_command
) {
2668 exec_status_exit(&s
->control_command
->exec_status
, &s
->exec_context
, pid
, code
, status
);
2670 if (s
->control_command
->ignore
)
2674 log_full(success
? LOG_DEBUG
: LOG_NOTICE
,
2675 "%s: control process exited, code=%s status=%i", u
->meta
.id
, sigchld_code_to_string(code
), status
);
2676 s
->failure
= s
->failure
|| !success
;
2678 if (s
->control_command
&&
2679 s
->control_command
->command_next
&&
2682 /* There is another command to *
2683 * execute, so let's do that. */
2685 log_debug("%s running next control command for state %s", u
->meta
.id
, service_state_to_string(s
->state
));
2686 service_run_next_control(s
, success
);
2689 /* No further commands for this step, so let's
2690 * figure out what to do next */
2692 s
->control_command
= NULL
;
2693 s
->control_command_id
= _SERVICE_EXEC_COMMAND_INVALID
;
2695 log_debug("%s got final SIGCHLD for state %s", u
->meta
.id
, service_state_to_string(s
->state
));
2699 case SERVICE_START_PRE
:
2701 service_enter_start(s
);
2703 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2707 assert(s
->type
== SERVICE_FORKING
);
2709 /* Let's try to load the pid
2710 * file here if we can. We
2711 * ignore the return value,
2712 * since the PID file might
2713 * actually be created by a
2714 * START_POST script */
2717 service_load_pid_file(s
);
2718 service_search_main_pid(s
);
2720 service_enter_start_post(s
);
2722 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2726 case SERVICE_START_POST
:
2728 service_load_pid_file(s
);
2729 service_search_main_pid(s
);
2732 s
->reload_failure
= !success
;
2733 service_enter_running(s
, true);
2736 case SERVICE_RELOAD
:
2738 service_load_pid_file(s
);
2739 service_search_main_pid(s
);
2742 s
->reload_failure
= !success
;
2743 service_enter_running(s
, true);
2747 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, success
);
2750 case SERVICE_STOP_SIGTERM
:
2751 case SERVICE_STOP_SIGKILL
:
2752 if (main_pid_good(s
) <= 0)
2753 service_enter_stop_post(s
, success
);
2755 /* If there is still a service
2756 * process around, wait until
2757 * that one quit, too */
2760 case SERVICE_STOP_POST
:
2761 case SERVICE_FINAL_SIGTERM
:
2762 case SERVICE_FINAL_SIGKILL
:
2763 service_enter_dead(s
, success
, true);
2767 assert_not_reached("Uh, control process died at wrong time.");
2772 /* Notify clients about changed exit status */
2773 unit_add_to_dbus_queue(u
);
2776 static void service_timer_event(Unit
*u
, uint64_t elapsed
, Watch
* w
) {
2777 Service
*s
= SERVICE(u
);
2780 assert(elapsed
== 1);
2782 assert(w
== &s
->timer_watch
);
2786 case SERVICE_START_PRE
:
2788 log_warning("%s operation timed out. Terminating.", u
->meta
.id
);
2789 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2792 case SERVICE_START_POST
:
2793 log_warning("%s operation timed out. Stopping.", u
->meta
.id
);
2794 service_enter_stop(s
, false);
2797 case SERVICE_RELOAD
:
2798 log_warning("%s operation timed out. Stopping.", u
->meta
.id
);
2799 s
->reload_failure
= true;
2800 service_enter_running(s
, true);
2804 log_warning("%s stopping timed out. Terminating.", u
->meta
.id
);
2805 service_enter_signal(s
, SERVICE_STOP_SIGTERM
, false);
2808 case SERVICE_STOP_SIGTERM
:
2809 if (s
->exec_context
.send_sigkill
) {
2810 log_warning("%s stopping timed out. Killing.", u
->meta
.id
);
2811 service_enter_signal(s
, SERVICE_STOP_SIGKILL
, false);
2813 log_warning("%s stopping timed out. Skipping SIGKILL.", u
->meta
.id
);
2814 service_enter_stop_post(s
, false);
2819 case SERVICE_STOP_SIGKILL
:
2820 /* Uh, we sent a SIGKILL and it is still not gone?
2821 * Must be something we cannot kill, so let's just be
2822 * weirded out and continue */
2824 log_warning("%s still around after SIGKILL. Ignoring.", u
->meta
.id
);
2825 service_enter_stop_post(s
, false);
2828 case SERVICE_STOP_POST
:
2829 log_warning("%s stopping timed out (2). Terminating.", u
->meta
.id
);
2830 service_enter_signal(s
, SERVICE_FINAL_SIGTERM
, false);
2833 case SERVICE_FINAL_SIGTERM
:
2834 if (s
->exec_context
.send_sigkill
) {
2835 log_warning("%s stopping timed out (2). Killing.", u
->meta
.id
);
2836 service_enter_signal(s
, SERVICE_FINAL_SIGKILL
, false);
2838 log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u
->meta
.id
);
2839 service_enter_dead(s
, false, true);
2844 case SERVICE_FINAL_SIGKILL
:
2845 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u
->meta
.id
);
2846 service_enter_dead(s
, false, true);
2849 case SERVICE_AUTO_RESTART
:
2850 log_info("%s holdoff time over, scheduling restart.", u
->meta
.id
);
2851 service_enter_restart(s
);
2855 assert_not_reached("Timeout at wrong time.");
2859 static void service_cgroup_notify_event(Unit
*u
) {
2860 Service
*s
= SERVICE(u
);
2864 log_debug("%s: cgroup is empty", u
->meta
.id
);
2868 /* Waiting for SIGCHLD is usually more interesting,
2869 * because it includes return codes/signals. Which is
2870 * why we ignore the cgroup events for most cases,
2871 * except when we don't know pid which to expect the
2874 case SERVICE_RUNNING
:
2875 service_enter_running(s
, true);
2878 case SERVICE_STOP_SIGTERM
:
2879 case SERVICE_STOP_SIGKILL
:
2881 if (main_pid_good(s
) <= 0 && !control_pid_good(s
))
2882 service_enter_stop_post(s
, true);
2886 case SERVICE_FINAL_SIGTERM
:
2887 case SERVICE_FINAL_SIGKILL
:
2888 if (main_pid_good(s
) <= 0 && !control_pid_good(s
))
2889 service_enter_dead(s
, true, true);
2898 static void service_notify_message(Unit
*u
, pid_t pid
, char **tags
) {
2899 Service
*s
= SERVICE(u
);
2904 if (s
->notify_access
== NOTIFY_NONE
) {
2905 log_warning("%s: Got notification message from PID %lu, but reception is disabled.",
2906 u
->meta
.id
, (unsigned long) pid
);
2910 if (s
->notify_access
== NOTIFY_MAIN
&& pid
!= s
->main_pid
) {
2911 log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
2912 u
->meta
.id
, (unsigned long) pid
, (unsigned long) s
->main_pid
);
2916 log_debug("%s: Got message", u
->meta
.id
);
2918 /* Interpret MAINPID= */
2919 if ((e
= strv_find_prefix(tags
, "MAINPID=")) &&
2920 (s
->state
== SERVICE_START
||
2921 s
->state
== SERVICE_START_POST
||
2922 s
->state
== SERVICE_RUNNING
||
2923 s
->state
== SERVICE_RELOAD
)) {
2925 if (parse_pid(e
+ 8, &pid
) < 0)
2926 log_warning("Failed to parse notification message %s", e
);
2928 log_debug("%s: got %s", u
->meta
.id
, e
);
2929 service_set_main_pid(s
, pid
);
2933 /* Interpret READY= */
2934 if (s
->type
== SERVICE_NOTIFY
&&
2935 s
->state
== SERVICE_START
&&
2936 strv_find(tags
, "READY=1")) {
2937 log_debug("%s: got READY=1", u
->meta
.id
);
2939 service_enter_start_post(s
);
2942 /* Interpret STATUS= */
2943 if ((e
= strv_find_prefix(tags
, "STATUS="))) {
2947 if (!(t
= strdup(e
+7))) {
2948 log_error("Failed to allocate string.");
2952 log_debug("%s: got %s", u
->meta
.id
, e
);
2954 free(s
->status_text
);
2957 free(s
->status_text
);
2958 s
->status_text
= NULL
;
2963 /* Notify clients about changed status or main pid */
2964 unit_add_to_dbus_queue(u
);
2967 #ifdef HAVE_SYSV_COMPAT
2968 static int service_enumerate(Manager
*m
) {
2972 char *path
= NULL
, *fpath
= NULL
, *name
= NULL
;
2973 Set
*runlevel_services
[ELEMENTSOF(rcnd_table
)], *shutdown_services
= NULL
;
2980 if (m
->running_as
!= MANAGER_SYSTEM
)
2983 zero(runlevel_services
);
2985 STRV_FOREACH(p
, m
->lookup_paths
.sysvrcnd_path
)
2986 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++) {
2991 if (asprintf(&path
, "%s/%s", *p
, rcnd_table
[i
].path
) < 0) {
2999 if (!(d
= opendir(path
))) {
3000 if (errno
!= ENOENT
)
3001 log_warning("opendir() failed on %s: %s", path
, strerror(errno
));
3006 while ((de
= readdir(d
))) {
3009 if (ignore_file(de
->d_name
))
3012 if (de
->d_name
[0] != 'S' && de
->d_name
[0] != 'K')
3015 if (strlen(de
->d_name
) < 4)
3018 a
= undecchar(de
->d_name
[1]);
3019 b
= undecchar(de
->d_name
[2]);
3026 if (asprintf(&fpath
, "%s/%s/%s", *p
, rcnd_table
[i
].path
, de
->d_name
) < 0) {
3031 if (access(fpath
, X_OK
) < 0) {
3033 if (errno
!= ENOENT
)
3034 log_warning("access() failed on %s: %s", fpath
, strerror(errno
));
3040 if (!(name
= sysv_translate_name(de
->d_name
+ 3))) {
3045 if ((r
= manager_load_unit_prepare(m
, name
, NULL
, NULL
, &service
)) < 0) {
3046 log_warning("Failed to prepare unit %s: %s", name
, strerror(-r
));
3050 if (de
->d_name
[0] == 'S') {
3052 if (rcnd_table
[i
].type
== RUNLEVEL_UP
|| rcnd_table
[i
].type
== RUNLEVEL_SYSINIT
) {
3053 SERVICE(service
)->sysv_start_priority_from_rcnd
=
3054 MAX(a
*10 + b
, SERVICE(service
)->sysv_start_priority_from_rcnd
);
3056 SERVICE(service
)->sysv_enabled
= true;
3059 if ((r
= set_ensure_allocated(&runlevel_services
[i
], trivial_hash_func
, trivial_compare_func
)) < 0)
3062 if ((r
= set_put(runlevel_services
[i
], service
)) < 0)
3065 } else if (de
->d_name
[0] == 'K' &&
3066 (rcnd_table
[i
].type
== RUNLEVEL_DOWN
||
3067 rcnd_table
[i
].type
== RUNLEVEL_SYSINIT
)) {
3069 if ((r
= set_ensure_allocated(&shutdown_services
, trivial_hash_func
, trivial_compare_func
)) < 0)
3072 if ((r
= set_put(shutdown_services
, service
)) < 0)
3078 /* Now we loaded all stubs and are aware of the lowest
3079 start-up priority for all services, not let's actually load
3080 the services, this will also tell us which services are
3081 actually native now */
3082 manager_dispatch_load_queue(m
);
3084 /* If this is a native service, rely on native ways to pull in
3085 * a service, don't pull it in via sysv rcN.d links. */
3086 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++)
3087 SET_FOREACH(service
, runlevel_services
[i
], j
) {
3088 service
= unit_follow_merge(service
);
3090 if (service
->meta
.fragment_path
)
3093 if ((r
= unit_add_two_dependencies_by_name_inverse(service
, UNIT_AFTER
, UNIT_WANTS
, rcnd_table
[i
].target
, NULL
, true)) < 0)
3097 /* We honour K links only for halt/reboot. For the normal
3098 * runlevels we assume the stop jobs will be implicitly added
3099 * by the core logic. Also, we don't really distinguish here
3100 * between the runlevels 0 and 6 and just add them to the
3101 * special shutdown target. On SUSE the boot.d/ runlevel is
3102 * also used for shutdown, so we add links for that too to the
3103 * shutdown target.*/
3104 SET_FOREACH(service
, shutdown_services
, j
) {
3105 service
= unit_follow_merge(service
);
3107 if (service
->meta
.fragment_path
)
3110 if ((r
= unit_add_two_dependencies_by_name(service
, UNIT_BEFORE
, UNIT_CONFLICTS
, SPECIAL_SHUTDOWN_TARGET
, NULL
, true)) < 0)
3121 for (i
= 0; i
< ELEMENTSOF(rcnd_table
); i
++)
3122 set_free(runlevel_services
[i
]);
3123 set_free(shutdown_services
);
3132 static void service_bus_name_owner_change(
3135 const char *old_owner
,
3136 const char *new_owner
) {
3138 Service
*s
= SERVICE(u
);
3143 assert(streq(s
->bus_name
, name
));
3144 assert(old_owner
|| new_owner
);
3146 if (old_owner
&& new_owner
)
3147 log_debug("%s's D-Bus name %s changed owner from %s to %s", u
->meta
.id
, name
, old_owner
, new_owner
);
3149 log_debug("%s's D-Bus name %s no longer registered by %s", u
->meta
.id
, name
, old_owner
);
3151 log_debug("%s's D-Bus name %s now registered by %s", u
->meta
.id
, name
, new_owner
);
3153 s
->bus_name_good
= !!new_owner
;
3155 if (s
->type
== SERVICE_DBUS
) {
3157 /* service_enter_running() will figure out what to
3159 if (s
->state
== SERVICE_RUNNING
)
3160 service_enter_running(s
, true);
3161 else if (s
->state
== SERVICE_START
&& new_owner
)
3162 service_enter_start_post(s
);
3164 } else if (new_owner
&&
3166 (s
->state
== SERVICE_START
||
3167 s
->state
== SERVICE_START_POST
||
3168 s
->state
== SERVICE_RUNNING
||
3169 s
->state
== SERVICE_RELOAD
)) {
3171 /* Try to acquire PID from bus service */
3172 log_debug("Trying to acquire PID from D-Bus name...");
3174 bus_query_pid(u
->meta
.manager
, name
);
3178 static void service_bus_query_pid_done(
3183 Service
*s
= SERVICE(u
);
3188 log_debug("%s's D-Bus name %s is now owned by process %u", u
->meta
.id
, name
, (unsigned) pid
);
3190 if (s
->main_pid
<= 0 &&
3191 (s
->state
== SERVICE_START
||
3192 s
->state
== SERVICE_START_POST
||
3193 s
->state
== SERVICE_RUNNING
||
3194 s
->state
== SERVICE_RELOAD
))
3195 service_set_main_pid(s
, pid
);
3198 int service_set_socket_fd(Service
*s
, int fd
, Socket
*sock
) {
3202 /* This is called by the socket code when instantiating a new
3203 * service for a stream socket and the socket needs to be
3206 if (s
->meta
.load_state
!= UNIT_LOADED
)
3209 if (s
->socket_fd
>= 0)
3212 if (s
->state
!= SERVICE_DEAD
)
3216 s
->got_socket_fd
= true;
3217 s
->accept_socket
= sock
;
3222 static void service_reset_failed(Unit
*u
) {
3223 Service
*s
= SERVICE(u
);
3227 if (s
->state
== SERVICE_FAILED
)
3228 service_set_state(s
, SERVICE_DEAD
);
3233 static bool service_need_daemon_reload(Unit
*u
) {
3234 Service
*s
= SERVICE(u
);
3238 #ifdef HAVE_SYSV_COMPAT
3243 if (stat(s
->sysv_path
, &st
) < 0)
3244 /* What, cannot access this anymore? */
3247 if (s
->sysv_mtime
> 0 &&
3248 timespec_load(&st
.st_mtim
) != s
->sysv_mtime
)
3256 static int service_kill(Unit
*u
, KillWho who
, KillMode mode
, int signo
, DBusError
*error
) {
3257 Service
*s
= SERVICE(u
);
3259 Set
*pid_set
= NULL
;
3263 if (s
->main_pid
<= 0 && who
== KILL_MAIN
) {
3264 dbus_set_error(error
, BUS_ERROR_NO_SUCH_PROCESS
, "No main process to kill");
3268 if (s
->control_pid
<= 0 && who
== KILL_CONTROL
) {
3269 dbus_set_error(error
, BUS_ERROR_NO_SUCH_PROCESS
, "No control process to kill");
3273 if (who
== KILL_CONTROL
|| who
== KILL_ALL
)
3274 if (s
->control_pid
> 0)
3275 if (kill(s
->control_pid
, signo
) < 0)
3278 if (who
== KILL_MAIN
|| who
== KILL_ALL
)
3279 if (s
->main_pid
> 0)
3280 if (kill(s
->main_pid
, signo
) < 0)
3283 if (who
== KILL_ALL
&& mode
== KILL_CONTROL_GROUP
) {
3286 if (!(pid_set
= set_new(trivial_hash_func
, trivial_compare_func
)))
3289 /* Exclude the control/main pid from being killed via the cgroup */
3290 if (s
->control_pid
> 0)
3291 if ((q
= set_put(pid_set
, LONG_TO_PTR(s
->control_pid
))) < 0) {
3296 if (s
->main_pid
> 0)
3297 if ((q
= set_put(pid_set
, LONG_TO_PTR(s
->main_pid
))) < 0) {
3302 if ((q
= cgroup_bonding_kill_list(s
->meta
.cgroup_bondings
, signo
, false, pid_set
)) < 0)
3303 if (q
!= -EAGAIN
&& q
!= -ESRCH
&& q
!= -ENOENT
)
3314 static const char* const service_state_table
[_SERVICE_STATE_MAX
] = {
3315 [SERVICE_DEAD
] = "dead",
3316 [SERVICE_START_PRE
] = "start-pre",
3317 [SERVICE_START
] = "start",
3318 [SERVICE_START_POST
] = "start-post",
3319 [SERVICE_RUNNING
] = "running",
3320 [SERVICE_EXITED
] = "exited",
3321 [SERVICE_RELOAD
] = "reload",
3322 [SERVICE_STOP
] = "stop",
3323 [SERVICE_STOP_SIGTERM
] = "stop-sigterm",
3324 [SERVICE_STOP_SIGKILL
] = "stop-sigkill",
3325 [SERVICE_STOP_POST
] = "stop-post",
3326 [SERVICE_FINAL_SIGTERM
] = "final-sigterm",
3327 [SERVICE_FINAL_SIGKILL
] = "final-sigkill",
3328 [SERVICE_FAILED
] = "failed",
3329 [SERVICE_AUTO_RESTART
] = "auto-restart",
3332 DEFINE_STRING_TABLE_LOOKUP(service_state
, ServiceState
);
3334 static const char* const service_restart_table
[_SERVICE_RESTART_MAX
] = {
3335 [SERVICE_RESTART_NO
] = "no",
3336 [SERVICE_RESTART_ON_SUCCESS
] = "on-success",
3337 [SERVICE_RESTART_ON_FAILURE
] = "on-failure",
3338 [SERVICE_RESTART_ON_ABORT
] = "on-abort",
3339 [SERVICE_RESTART_ALWAYS
] = "always"
3342 DEFINE_STRING_TABLE_LOOKUP(service_restart
, ServiceRestart
);
3344 static const char* const service_type_table
[_SERVICE_TYPE_MAX
] = {
3345 [SERVICE_SIMPLE
] = "simple",
3346 [SERVICE_FORKING
] = "forking",
3347 [SERVICE_ONESHOT
] = "oneshot",
3348 [SERVICE_DBUS
] = "dbus",
3349 [SERVICE_NOTIFY
] = "notify"
3352 DEFINE_STRING_TABLE_LOOKUP(service_type
, ServiceType
);
3354 static const char* const service_exec_command_table
[_SERVICE_EXEC_COMMAND_MAX
] = {
3355 [SERVICE_EXEC_START_PRE
] = "ExecStartPre",
3356 [SERVICE_EXEC_START
] = "ExecStart",
3357 [SERVICE_EXEC_START_POST
] = "ExecStartPost",
3358 [SERVICE_EXEC_RELOAD
] = "ExecReload",
3359 [SERVICE_EXEC_STOP
] = "ExecStop",
3360 [SERVICE_EXEC_STOP_POST
] = "ExecStopPost",
3363 DEFINE_STRING_TABLE_LOOKUP(service_exec_command
, ServiceExecCommand
);
3365 static const char* const notify_access_table
[_NOTIFY_ACCESS_MAX
] = {
3366 [NOTIFY_NONE
] = "none",
3367 [NOTIFY_MAIN
] = "main",
3368 [NOTIFY_ALL
] = "all"
3371 DEFINE_STRING_TABLE_LOOKUP(notify_access
, NotifyAccess
);
3373 const UnitVTable service_vtable
= {
3374 .suffix
= ".service",
3379 .show_status
= true,
3381 .init
= service_init
,
3382 .done
= service_done
,
3383 .load
= service_load
,
3385 .coldplug
= service_coldplug
,
3387 .dump
= service_dump
,
3389 .start
= service_start
,
3390 .stop
= service_stop
,
3391 .reload
= service_reload
,
3393 .can_reload
= service_can_reload
,
3395 .kill
= service_kill
,
3397 .serialize
= service_serialize
,
3398 .deserialize_item
= service_deserialize_item
,
3400 .active_state
= service_active_state
,
3401 .sub_state_to_string
= service_sub_state_to_string
,
3403 .check_gc
= service_check_gc
,
3404 .check_snapshot
= service_check_snapshot
,
3406 .sigchld_event
= service_sigchld_event
,
3407 .timer_event
= service_timer_event
,
3409 .reset_failed
= service_reset_failed
,
3411 .need_daemon_reload
= service_need_daemon_reload
,
3413 .cgroup_notify_empty
= service_cgroup_notify_event
,
3414 .notify_message
= service_notify_message
,
3416 .bus_name_owner_change
= service_bus_name_owner_change
,
3417 .bus_query_pid_done
= service_bus_query_pid_done
,
3419 .bus_interface
= "org.freedesktop.systemd1.Service",
3420 .bus_message_handler
= bus_service_message_handler
,
3421 .bus_invalidating_properties
= bus_service_invalidating_properties
,
3423 #ifdef HAVE_SYSV_COMPAT
3424 .enumerate
= service_enumerate