1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2013 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 #include "formats-util.h"
26 #include "signal-util.h"
27 #include "bus-kernel.h"
28 #include "bus-internal.h"
31 #include "bus-policy.h"
33 #include "dbus-busname.h"
36 static const UnitActiveState state_translation_table
[_BUSNAME_STATE_MAX
] = {
37 [BUSNAME_DEAD
] = UNIT_INACTIVE
,
38 [BUSNAME_MAKING
] = UNIT_ACTIVATING
,
39 [BUSNAME_REGISTERED
] = UNIT_ACTIVE
,
40 [BUSNAME_LISTENING
] = UNIT_ACTIVE
,
41 [BUSNAME_RUNNING
] = UNIT_ACTIVE
,
42 [BUSNAME_SIGTERM
] = UNIT_DEACTIVATING
,
43 [BUSNAME_SIGKILL
] = UNIT_DEACTIVATING
,
44 [BUSNAME_FAILED
] = UNIT_FAILED
47 static int busname_dispatch_io(sd_event_source
*source
, int fd
, uint32_t revents
, void *userdata
);
48 static int busname_dispatch_timer(sd_event_source
*source
, usec_t usec
, void *userdata
);
50 static void busname_init(Unit
*u
) {
51 BusName
*n
= BUSNAME(u
);
54 assert(u
->load_state
== UNIT_STUB
);
60 n
->timeout_usec
= u
->manager
->default_timeout_start_usec
;
63 static void busname_unwatch_control_pid(BusName
*n
) {
66 if (n
->control_pid
<= 0)
69 unit_unwatch_pid(UNIT(n
), n
->control_pid
);
73 static void busname_free_policy(BusName
*n
) {
78 while ((p
= n
->policy
)) {
79 LIST_REMOVE(policy
, n
->policy
, p
);
86 static void busname_close_fd(BusName
*n
) {
89 n
->starter_event_source
= sd_event_source_unref(n
->starter_event_source
);
90 n
->starter_fd
= safe_close(n
->starter_fd
);
93 static void busname_done(Unit
*u
) {
94 BusName
*n
= BUSNAME(u
);
101 busname_free_policy(n
);
102 busname_unwatch_control_pid(n
);
105 unit_ref_unset(&n
->service
);
107 n
->timer_event_source
= sd_event_source_unref(n
->timer_event_source
);
110 static int busname_arm_timer(BusName
*n
) {
115 if (n
->timeout_usec
<= 0) {
116 n
->timer_event_source
= sd_event_source_unref(n
->timer_event_source
);
120 if (n
->timer_event_source
) {
121 r
= sd_event_source_set_time(n
->timer_event_source
, now(CLOCK_MONOTONIC
) + n
->timeout_usec
);
125 return sd_event_source_set_enabled(n
->timer_event_source
, SD_EVENT_ONESHOT
);
128 r
= sd_event_add_time(
129 UNIT(n
)->manager
->event
,
130 &n
->timer_event_source
,
132 now(CLOCK_MONOTONIC
) + n
->timeout_usec
, 0,
133 busname_dispatch_timer
, n
);
137 (void) sd_event_source_set_description(n
->timer_event_source
, "busname-timer");
142 static int busname_add_default_default_dependencies(BusName
*n
) {
147 r
= unit_add_dependency_by_name(UNIT(n
), UNIT_BEFORE
, SPECIAL_BUSNAMES_TARGET
, NULL
, true);
151 if (UNIT(n
)->manager
->running_as
== MANAGER_SYSTEM
) {
152 r
= unit_add_two_dependencies_by_name(UNIT(n
), UNIT_AFTER
, UNIT_REQUIRES
, SPECIAL_SYSINIT_TARGET
, NULL
, true);
157 return unit_add_two_dependencies_by_name(UNIT(n
), UNIT_BEFORE
, UNIT_CONFLICTS
, SPECIAL_SHUTDOWN_TARGET
, NULL
, true);
160 static int busname_add_extras(BusName
*n
) {
167 r
= unit_name_to_prefix(u
->id
, &n
->name
);
172 if (!u
->description
) {
173 r
= unit_set_description(u
, n
->name
);
179 if (!UNIT_DEREF(n
->service
)) {
182 r
= unit_load_related_unit(u
, ".service", &x
);
186 unit_ref_set(&n
->service
, x
);
189 r
= unit_add_two_dependencies(u
, UNIT_BEFORE
, UNIT_TRIGGERS
, UNIT_DEREF(n
->service
), true);
194 if (u
->default_dependencies
) {
195 r
= busname_add_default_default_dependencies(n
);
203 static int busname_verify(BusName
*n
) {
208 if (UNIT(n
)->load_state
!= UNIT_LOADED
)
211 if (!service_name_is_valid(n
->name
)) {
212 log_unit_error(UNIT(n
), "Name= setting is not a valid service name Refusing.");
216 e
= strjoina(n
->name
, ".busname");
217 if (!unit_has_name(UNIT(n
), e
)) {
218 log_unit_error(UNIT(n
), "Name= setting doesn't match unit name. Refusing.");
225 static int busname_load(Unit
*u
) {
226 BusName
*n
= BUSNAME(u
);
230 assert(u
->load_state
== UNIT_STUB
);
232 r
= unit_load_fragment_and_dropin(u
);
236 if (u
->load_state
== UNIT_LOADED
) {
237 /* This is a new unit? Then let's add in some extras */
238 r
= busname_add_extras(n
);
243 return busname_verify(n
);
246 static void busname_dump(Unit
*u
, FILE *f
, const char *prefix
) {
247 BusName
*n
= BUSNAME(u
);
253 "%sBus Name State: %s\n"
258 prefix
, busname_state_to_string(n
->state
),
259 prefix
, busname_result_to_string(n
->result
),
261 prefix
, yes_no(n
->activating
),
262 prefix
, yes_no(n
->accept_fd
));
264 if (n
->control_pid
> 0)
266 "%sControl PID: "PID_FMT
"\n",
267 prefix
, n
->control_pid
);
270 static void busname_unwatch_fd(BusName
*n
) {
275 if (!n
->starter_event_source
)
278 r
= sd_event_source_set_enabled(n
->starter_event_source
, SD_EVENT_OFF
);
280 log_unit_debug_errno(UNIT(n
), r
, "Failed to disable event source: %m");
283 static int busname_watch_fd(BusName
*n
) {
288 if (n
->starter_fd
< 0)
291 if (n
->starter_event_source
) {
292 r
= sd_event_source_set_enabled(n
->starter_event_source
, SD_EVENT_ON
);
296 r
= sd_event_add_io(UNIT(n
)->manager
->event
, &n
->starter_event_source
, n
->starter_fd
, EPOLLIN
, busname_dispatch_io
, n
);
300 (void) sd_event_source_set_description(n
->starter_event_source
, "busname-starter");
306 log_unit_warning_errno(UNIT(n
), r
, "Failed to watch starter fd: %m");
307 busname_unwatch_fd(n
);
311 static int busname_open_fd(BusName
*n
) {
312 _cleanup_free_
char *path
= NULL
;
317 if (n
->starter_fd
>= 0)
320 mode
= UNIT(n
)->manager
->running_as
== MANAGER_SYSTEM
? "system" : "user";
321 n
->starter_fd
= bus_kernel_open_bus_fd(mode
, &path
);
322 if (n
->starter_fd
< 0)
323 return log_unit_warning_errno(UNIT(n
), n
->starter_fd
, "Failed to open %s: %m", path
?: "kdbus");
328 static void busname_set_state(BusName
*n
, BusNameState state
) {
329 BusNameState old_state
;
332 old_state
= n
->state
;
335 if (!IN_SET(state
, BUSNAME_MAKING
, BUSNAME_SIGTERM
, BUSNAME_SIGKILL
)) {
336 n
->timer_event_source
= sd_event_source_unref(n
->timer_event_source
);
337 busname_unwatch_control_pid(n
);
340 if (state
!= BUSNAME_LISTENING
)
341 busname_unwatch_fd(n
);
343 if (!IN_SET(state
, BUSNAME_LISTENING
, BUSNAME_MAKING
, BUSNAME_REGISTERED
, BUSNAME_RUNNING
))
346 if (state
!= old_state
)
347 log_unit_debug(UNIT(n
), "Changed %s -> %s", busname_state_to_string(old_state
), busname_state_to_string(state
));
349 unit_notify(UNIT(n
), state_translation_table
[old_state
], state_translation_table
[state
], true);
352 static int busname_coldplug(Unit
*u
) {
353 BusName
*n
= BUSNAME(u
);
357 assert(n
->state
== BUSNAME_DEAD
);
359 if (n
->deserialized_state
== n
->state
)
362 if (IN_SET(n
->deserialized_state
, BUSNAME_MAKING
, BUSNAME_SIGTERM
, BUSNAME_SIGKILL
)) {
364 if (n
->control_pid
<= 0)
367 r
= unit_watch_pid(UNIT(n
), n
->control_pid
);
371 r
= busname_arm_timer(n
);
376 if (IN_SET(n
->deserialized_state
, BUSNAME_MAKING
, BUSNAME_LISTENING
, BUSNAME_REGISTERED
, BUSNAME_RUNNING
)) {
377 r
= busname_open_fd(n
);
382 if (n
->deserialized_state
== BUSNAME_LISTENING
) {
383 r
= busname_watch_fd(n
);
388 busname_set_state(n
, n
->deserialized_state
);
392 static int busname_make_starter(BusName
*n
, pid_t
*_pid
) {
396 r
= busname_arm_timer(n
);
400 /* We have to resolve the user/group names out-of-process,
401 * hence let's fork here. It's messy, but well, what can we
411 (void) default_signals(SIGNALS_CRASH_HANDLER
, SIGNALS_IGNORE
, -1);
412 (void) ignore_signals(SIGPIPE
, -1);
415 r
= bus_kernel_make_starter(n
->starter_fd
, n
->name
, n
->activating
, n
->accept_fd
, n
->policy
, n
->policy_world
);
417 ret
= EXIT_MAKE_STARTER
;
425 log_error_errno(r
, "Failed to create starter connection at step %s: %m", exit_status_to_string(ret
, EXIT_STATUS_SYSTEMD
));
430 r
= unit_watch_pid(UNIT(n
), pid
);
438 n
->timer_event_source
= sd_event_source_unref(n
->timer_event_source
);
442 static void busname_enter_dead(BusName
*n
, BusNameResult f
) {
445 if (f
!= BUSNAME_SUCCESS
)
448 busname_set_state(n
, n
->result
!= BUSNAME_SUCCESS
? BUSNAME_FAILED
: BUSNAME_DEAD
);
451 static void busname_enter_signal(BusName
*n
, BusNameState state
, BusNameResult f
) {
452 KillContext kill_context
= {};
457 if (f
!= BUSNAME_SUCCESS
)
460 kill_context_init(&kill_context
);
462 r
= unit_kill_context(UNIT(n
),
464 state
!= BUSNAME_SIGTERM
? KILL_KILL
: KILL_TERMINATE
,
469 log_unit_warning_errno(UNIT(n
), r
, "Failed to kill control process: %m");
474 r
= busname_arm_timer(n
);
476 log_unit_warning_errno(UNIT(n
), r
, "Failed to arm timer: %m");
480 busname_set_state(n
, state
);
481 } else if (state
== BUSNAME_SIGTERM
)
482 busname_enter_signal(n
, BUSNAME_SIGKILL
, BUSNAME_SUCCESS
);
484 busname_enter_dead(n
, BUSNAME_SUCCESS
);
489 busname_enter_dead(n
, BUSNAME_FAILURE_RESOURCES
);
492 static void busname_enter_listening(BusName
*n
) {
498 r
= busname_watch_fd(n
);
500 log_unit_warning_errno(UNIT(n
), r
, "Failed to watch names: %m");
504 busname_set_state(n
, BUSNAME_LISTENING
);
506 busname_set_state(n
, BUSNAME_REGISTERED
);
511 busname_enter_signal(n
, BUSNAME_SIGTERM
, BUSNAME_FAILURE_RESOURCES
);
514 static void busname_enter_making(BusName
*n
) {
519 r
= busname_open_fd(n
);
524 /* If there is a policy, we need to resolve user/group
525 * names, which we can't do from PID1, hence let's
527 busname_unwatch_control_pid(n
);
529 r
= busname_make_starter(n
, &n
->control_pid
);
531 log_unit_warning_errno(UNIT(n
), r
, "Failed to fork 'making' task: %m");
535 busname_set_state(n
, BUSNAME_MAKING
);
537 /* If there is no policy, we can do everything
538 * directly from PID 1, hence do so. */
540 r
= bus_kernel_make_starter(n
->starter_fd
, n
->name
, n
->activating
, n
->accept_fd
, NULL
, n
->policy_world
);
542 log_unit_warning_errno(UNIT(n
), r
, "Failed to make starter: %m");
546 busname_enter_listening(n
);
552 busname_enter_dead(n
, BUSNAME_FAILURE_RESOURCES
);
555 static void busname_enter_running(BusName
*n
) {
556 _cleanup_bus_error_free_ sd_bus_error error
= SD_BUS_ERROR_NULL
;
557 bool pending
= false;
567 /* We don't take connections anymore if we are supposed to
568 * shut down anyway */
570 if (unit_stop_pending(UNIT(n
))) {
571 log_unit_debug(UNIT(n
), "Suppressing activation request since unit stop is scheduled.");
573 /* Flush all queued activation reqeuest by closing and reopening the connection */
574 bus_kernel_drop_one(n
->starter_fd
);
576 busname_enter_listening(n
);
580 /* If there's already a start pending don't bother to do
582 SET_FOREACH(other
, UNIT(n
)->dependencies
[UNIT_TRIGGERS
], i
)
583 if (unit_active_or_pending(other
)) {
589 r
= manager_add_job(UNIT(n
)->manager
, JOB_START
, UNIT_DEREF(n
->service
), JOB_REPLACE
, true, &error
, NULL
);
594 busname_set_state(n
, BUSNAME_RUNNING
);
598 log_unit_warning(UNIT(n
), "Failed to queue service startup job: %s", bus_error_message(&error
, r
));
599 busname_enter_dead(n
, BUSNAME_FAILURE_RESOURCES
);
602 static int busname_start(Unit
*u
) {
603 BusName
*n
= BUSNAME(u
);
607 /* We cannot fulfill this request right now, try again later
609 if (IN_SET(n
->state
, BUSNAME_SIGTERM
, BUSNAME_SIGKILL
))
613 if (n
->state
== BUSNAME_MAKING
)
616 if (n
->activating
&& UNIT_ISSET(n
->service
)) {
619 service
= SERVICE(UNIT_DEREF(n
->service
));
621 if (UNIT(service
)->load_state
!= UNIT_LOADED
) {
622 log_unit_error(u
, "Bus service %s not loaded, refusing.", UNIT(service
)->id
);
627 assert(IN_SET(n
->state
, BUSNAME_DEAD
, BUSNAME_FAILED
));
629 n
->result
= BUSNAME_SUCCESS
;
630 busname_enter_making(n
);
635 static int busname_stop(Unit
*u
) {
636 BusName
*n
= BUSNAME(u
);
641 if (IN_SET(n
->state
, BUSNAME_SIGTERM
, BUSNAME_SIGKILL
))
644 /* If there's already something running, we go directly into
647 if (n
->state
== BUSNAME_MAKING
) {
648 busname_enter_signal(n
, BUSNAME_SIGTERM
, BUSNAME_SUCCESS
);
652 assert(IN_SET(n
->state
, BUSNAME_REGISTERED
, BUSNAME_LISTENING
, BUSNAME_RUNNING
));
654 busname_enter_dead(n
, BUSNAME_SUCCESS
);
658 static int busname_serialize(Unit
*u
, FILE *f
, FDSet
*fds
) {
659 BusName
*n
= BUSNAME(u
);
665 unit_serialize_item(u
, f
, "state", busname_state_to_string(n
->state
));
666 unit_serialize_item(u
, f
, "result", busname_result_to_string(n
->result
));
668 if (n
->control_pid
> 0)
669 unit_serialize_item_format(u
, f
, "control-pid", PID_FMT
, n
->control_pid
);
671 if (n
->starter_fd
>= 0) {
674 copy
= fdset_put_dup(fds
, n
->starter_fd
);
678 unit_serialize_item_format(u
, f
, "starter-fd", "%i", copy
);
684 static int busname_deserialize_item(Unit
*u
, const char *key
, const char *value
, FDSet
*fds
) {
685 BusName
*n
= BUSNAME(u
);
691 if (streq(key
, "state")) {
694 state
= busname_state_from_string(value
);
696 log_unit_debug(u
, "Failed to parse state value: %s", value
);
698 n
->deserialized_state
= state
;
700 } else if (streq(key
, "result")) {
703 f
= busname_result_from_string(value
);
705 log_unit_debug(u
, "Failed to parse result value: %s", value
);
706 else if (f
!= BUSNAME_SUCCESS
)
709 } else if (streq(key
, "control-pid")) {
712 if (parse_pid(value
, &pid
) < 0)
713 log_unit_debug(u
, "Failed to parse control-pid value: %s", value
);
715 n
->control_pid
= pid
;
716 } else if (streq(key
, "starter-fd")) {
719 if (safe_atoi(value
, &fd
) < 0 || fd
< 0 || !fdset_contains(fds
, fd
))
720 log_unit_debug(u
, "Failed to parse starter fd value: %s", value
);
722 safe_close(n
->starter_fd
);
723 n
->starter_fd
= fdset_remove(fds
, fd
);
726 log_unit_debug(u
, "Unknown serialization key: %s", key
);
731 _pure_
static UnitActiveState
busname_active_state(Unit
*u
) {
734 return state_translation_table
[BUSNAME(u
)->state
];
737 _pure_
static const char *busname_sub_state_to_string(Unit
*u
) {
740 return busname_state_to_string(BUSNAME(u
)->state
);
743 static int busname_peek_message(BusName
*n
) {
744 struct kdbus_cmd_recv cmd_recv
= {
745 .size
= sizeof(cmd_recv
),
746 .flags
= KDBUS_RECV_PEEK
,
748 struct kdbus_cmd_free cmd_free
= {
749 .size
= sizeof(cmd_free
),
751 const char *comm
= NULL
;
752 struct kdbus_item
*d
;
754 size_t start
, ps
, sz
, delta
;
759 /* Generate a friendly debug log message about which process
760 * caused triggering of this bus name. This simply peeks the
761 * metadata of the first queued message and logs it. */
765 /* Let's shortcut things a bit, if debug logging is turned off
768 if (log_get_max_level() < LOG_DEBUG
)
771 r
= ioctl(n
->starter_fd
, KDBUS_CMD_RECV
, &cmd_recv
);
773 if (errno
== EINTR
|| errno
== EAGAIN
)
776 return log_unit_error_errno(UNIT(n
), errno
, "Failed to query activation message: %m");
779 /* We map as late as possible, and unmap imemdiately after
780 * use. On 32bit address space is scarce and we want to be
781 * able to handle a lot of activator connections at the same
782 * time, and hence shouldn't keep the mmap()s around for
783 * longer than necessary. */
786 start
= (cmd_recv
.msg
.offset
/ ps
) * ps
;
787 delta
= cmd_recv
.msg
.offset
- start
;
788 sz
= PAGE_ALIGN(delta
+ cmd_recv
.msg
.msg_size
);
790 p
= mmap(NULL
, sz
, PROT_READ
, MAP_SHARED
, n
->starter_fd
, start
);
791 if (p
== MAP_FAILED
) {
792 r
= log_unit_error_errno(UNIT(n
), errno
, "Failed to map activation message: %m");
796 k
= (struct kdbus_msg
*) ((uint8_t *) p
+ delta
);
797 KDBUS_ITEM_FOREACH(d
, k
, items
) {
800 case KDBUS_ITEM_PIDS
:
804 case KDBUS_ITEM_PID_COMM
:
811 log_unit_debug(UNIT(n
), "Activation triggered by process " PID_FMT
" (%s)", pid
, strna(comm
));
817 (void) munmap(p
, sz
);
819 cmd_free
.offset
= cmd_recv
.msg
.offset
;
820 if (ioctl(n
->starter_fd
, KDBUS_CMD_FREE
, &cmd_free
) < 0)
821 log_unit_warning(UNIT(n
), "Failed to free peeked message, ignoring: %m");
826 static int busname_dispatch_io(sd_event_source
*source
, int fd
, uint32_t revents
, void *userdata
) {
827 BusName
*n
= userdata
;
832 if (n
->state
!= BUSNAME_LISTENING
)
835 log_unit_debug(UNIT(n
), "Activation request");
837 if (revents
!= EPOLLIN
) {
838 log_unit_error(UNIT(n
), "Got unexpected poll event (0x%x) on starter fd.", revents
);
842 busname_peek_message(n
);
843 busname_enter_running(n
);
847 busname_enter_dead(n
, BUSNAME_FAILURE_RESOURCES
);
851 static void busname_sigchld_event(Unit
*u
, pid_t pid
, int code
, int status
) {
852 BusName
*n
= BUSNAME(u
);
858 if (pid
!= n
->control_pid
)
863 if (is_clean_exit(code
, status
, NULL
))
865 else if (code
== CLD_EXITED
)
866 f
= BUSNAME_FAILURE_EXIT_CODE
;
867 else if (code
== CLD_KILLED
)
868 f
= BUSNAME_FAILURE_SIGNAL
;
869 else if (code
== CLD_DUMPED
)
870 f
= BUSNAME_FAILURE_CORE_DUMP
;
872 assert_not_reached("Unknown sigchld code");
874 log_unit_full(u
, f
== BUSNAME_SUCCESS
? LOG_DEBUG
: LOG_NOTICE
, 0,
875 "Control process exited, code=%s status=%i", sigchld_code_to_string(code
), status
);
877 if (f
!= BUSNAME_SUCCESS
)
883 if (f
== BUSNAME_SUCCESS
)
884 busname_enter_listening(n
);
886 busname_enter_signal(n
, BUSNAME_SIGTERM
, f
);
889 case BUSNAME_SIGTERM
:
890 case BUSNAME_SIGKILL
:
891 busname_enter_dead(n
, f
);
895 assert_not_reached("Uh, control process died at wrong time.");
898 /* Notify clients about changed exit status */
899 unit_add_to_dbus_queue(u
);
902 static int busname_dispatch_timer(sd_event_source
*source
, usec_t usec
, void *userdata
) {
903 BusName
*n
= BUSNAME(userdata
);
906 assert(n
->timer_event_source
== source
);
911 log_unit_warning(UNIT(n
), "Making timed out. Terminating.");
912 busname_enter_signal(n
, BUSNAME_SIGTERM
, BUSNAME_FAILURE_TIMEOUT
);
915 case BUSNAME_SIGTERM
:
916 log_unit_warning(UNIT(n
), "Stopping timed out. Killing.");
917 busname_enter_signal(n
, BUSNAME_SIGKILL
, BUSNAME_FAILURE_TIMEOUT
);
920 case BUSNAME_SIGKILL
:
921 log_unit_warning(UNIT(n
), "Processes still around after SIGKILL. Ignoring.");
922 busname_enter_dead(n
, BUSNAME_FAILURE_TIMEOUT
);
926 assert_not_reached("Timeout at wrong time.");
932 static void busname_reset_failed(Unit
*u
) {
933 BusName
*n
= BUSNAME(u
);
937 if (n
->state
== BUSNAME_FAILED
)
938 busname_set_state(n
, BUSNAME_DEAD
);
940 n
->result
= BUSNAME_SUCCESS
;
943 static void busname_trigger_notify(Unit
*u
, Unit
*other
) {
944 BusName
*n
= BUSNAME(u
);
950 if (!IN_SET(n
->state
, BUSNAME_RUNNING
, BUSNAME_LISTENING
))
953 if (other
->load_state
!= UNIT_LOADED
|| other
->type
!= UNIT_SERVICE
)
958 if (s
->state
== SERVICE_FAILED
&& s
->result
== SERVICE_FAILURE_START_LIMIT
)
959 busname_enter_dead(n
, BUSNAME_FAILURE_SERVICE_FAILED_PERMANENT
);
960 else if (IN_SET(s
->state
,
961 SERVICE_DEAD
, SERVICE_FAILED
,
962 SERVICE_STOP
, SERVICE_STOP_SIGTERM
, SERVICE_STOP_SIGKILL
,
963 SERVICE_STOP_POST
, SERVICE_FINAL_SIGTERM
, SERVICE_FINAL_SIGKILL
,
964 SERVICE_AUTO_RESTART
))
965 busname_enter_listening(n
);
968 static int busname_kill(Unit
*u
, KillWho who
, int signo
, sd_bus_error
*error
) {
969 return unit_kill_common(u
, who
, signo
, -1, BUSNAME(u
)->control_pid
, error
);
972 static int busname_get_timeout(Unit
*u
, uint64_t *timeout
) {
973 BusName
*n
= BUSNAME(u
);
976 if (!n
->timer_event_source
)
979 r
= sd_event_source_get_time(n
->timer_event_source
, timeout
);
986 static bool busname_supported(void) {
987 static int supported
= -1;
990 supported
= is_kdbus_available();
995 static const char* const busname_state_table
[_BUSNAME_STATE_MAX
] = {
996 [BUSNAME_DEAD
] = "dead",
997 [BUSNAME_MAKING
] = "making",
998 [BUSNAME_REGISTERED
] = "registered",
999 [BUSNAME_LISTENING
] = "listening",
1000 [BUSNAME_RUNNING
] = "running",
1001 [BUSNAME_SIGTERM
] = "sigterm",
1002 [BUSNAME_SIGKILL
] = "sigkill",
1003 [BUSNAME_FAILED
] = "failed",
1006 DEFINE_STRING_TABLE_LOOKUP(busname_state
, BusNameState
);
1008 static const char* const busname_result_table
[_BUSNAME_RESULT_MAX
] = {
1009 [BUSNAME_SUCCESS
] = "success",
1010 [BUSNAME_FAILURE_RESOURCES
] = "resources",
1011 [BUSNAME_FAILURE_TIMEOUT
] = "timeout",
1012 [BUSNAME_FAILURE_EXIT_CODE
] = "exit-code",
1013 [BUSNAME_FAILURE_SIGNAL
] = "signal",
1014 [BUSNAME_FAILURE_CORE_DUMP
] = "core-dump",
1015 [BUSNAME_FAILURE_SERVICE_FAILED_PERMANENT
] = "service-failed-permanent",
1018 DEFINE_STRING_TABLE_LOOKUP(busname_result
, BusNameResult
);
1020 const UnitVTable busname_vtable
= {
1021 .object_size
= sizeof(BusName
),
1027 .private_section
= "BusName",
1030 .no_instances
= true,
1032 .init
= busname_init
,
1033 .done
= busname_done
,
1034 .load
= busname_load
,
1036 .coldplug
= busname_coldplug
,
1038 .dump
= busname_dump
,
1040 .start
= busname_start
,
1041 .stop
= busname_stop
,
1043 .kill
= busname_kill
,
1045 .get_timeout
= busname_get_timeout
,
1047 .serialize
= busname_serialize
,
1048 .deserialize_item
= busname_deserialize_item
,
1050 .active_state
= busname_active_state
,
1051 .sub_state_to_string
= busname_sub_state_to_string
,
1053 .sigchld_event
= busname_sigchld_event
,
1055 .trigger_notify
= busname_trigger_notify
,
1057 .reset_failed
= busname_reset_failed
,
1059 .supported
= busname_supported
,
1061 .bus_interface
= "org.freedesktop.systemd1.BusName",
1062 .bus_vtable
= bus_busname_vtable
,
1064 .status_message_formats
= {
1065 .finished_start_job
= {
1066 [JOB_DONE
] = "Listening on %s.",
1067 [JOB_FAILED
] = "Failed to listen on %s.",
1068 [JOB_DEPENDENCY
] = "Dependency failed for %s.",
1069 [JOB_TIMEOUT
] = "Timed out starting %s.",
1071 .finished_stop_job
= {
1072 [JOB_DONE
] = "Closed %s.",
1073 [JOB_FAILED
] = "Failed stopping %s.",
1074 [JOB_TIMEOUT
] = "Timed out stopping %s.",