1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include "path-util.h"
27 #include "dbus-execute.h"
28 #include "dbus-kill.h"
29 #include "dbus-cgroup.h"
30 #include "dbus-service.h"
33 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type
, service_type
, ServiceType
);
34 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result
, service_result
, ServiceResult
);
35 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_restart
, service_restart
, ServiceRestart
);
36 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_notify_access
, notify_access
, NotifyAccess
);
37 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_failure_action
, failure_action
, FailureAction
);
39 const sd_bus_vtable bus_service_vtable
[] = {
40 SD_BUS_VTABLE_START(0),
41 SD_BUS_PROPERTY("Type", "s", property_get_type
, offsetof(Service
, type
), SD_BUS_VTABLE_PROPERTY_CONST
),
42 SD_BUS_PROPERTY("Restart", "s", property_get_restart
, offsetof(Service
, restart
), SD_BUS_VTABLE_PROPERTY_CONST
),
43 SD_BUS_PROPERTY("PIDFile", "s", NULL
, offsetof(Service
, pid_file
), SD_BUS_VTABLE_PROPERTY_CONST
),
44 SD_BUS_PROPERTY("NotifyAccess", "s", property_get_notify_access
, offsetof(Service
, notify_access
), SD_BUS_VTABLE_PROPERTY_CONST
),
45 SD_BUS_PROPERTY("RestartUSec", "t", bus_property_get_usec
, offsetof(Service
, restart_usec
), SD_BUS_VTABLE_PROPERTY_CONST
),
46 SD_BUS_PROPERTY("TimeoutStartUSec", "t", bus_property_get_usec
, offsetof(Service
, timeout_start_usec
), SD_BUS_VTABLE_PROPERTY_CONST
),
47 SD_BUS_PROPERTY("TimeoutStopUSec", "t", bus_property_get_usec
, offsetof(Service
, timeout_stop_usec
), SD_BUS_VTABLE_PROPERTY_CONST
),
48 SD_BUS_PROPERTY("WatchdogUSec", "t", bus_property_get_usec
, offsetof(Service
, watchdog_usec
), SD_BUS_VTABLE_PROPERTY_CONST
),
49 BUS_PROPERTY_DUAL_TIMESTAMP("WatchdogTimestamp", offsetof(Service
, watchdog_timestamp
), 0),
50 SD_BUS_PROPERTY("StartLimitInterval", "t", bus_property_get_usec
, offsetof(Service
, start_limit
.interval
), SD_BUS_VTABLE_PROPERTY_CONST
),
51 SD_BUS_PROPERTY("StartLimitBurst", "u", bus_property_get_unsigned
, offsetof(Service
, start_limit
.burst
), SD_BUS_VTABLE_PROPERTY_CONST
),
52 SD_BUS_PROPERTY("StartLimitAction", "s", property_get_failure_action
, offsetof(Service
, start_limit_action
), SD_BUS_VTABLE_PROPERTY_CONST
),
53 SD_BUS_PROPERTY("RebootArgument", "s", NULL
, offsetof(Service
, reboot_arg
), SD_BUS_VTABLE_PROPERTY_CONST
),
54 SD_BUS_PROPERTY("FailureAction", "s", property_get_failure_action
, offsetof(Service
, failure_action
), SD_BUS_VTABLE_PROPERTY_CONST
),
55 SD_BUS_PROPERTY("PermissionsStartOnly", "b", bus_property_get_bool
, offsetof(Service
, permissions_start_only
), SD_BUS_VTABLE_PROPERTY_CONST
),
56 SD_BUS_PROPERTY("RootDirectoryStartOnly", "b", bus_property_get_bool
, offsetof(Service
, root_directory_start_only
), SD_BUS_VTABLE_PROPERTY_CONST
),
57 SD_BUS_PROPERTY("RemainAfterExit", "b", bus_property_get_bool
, offsetof(Service
, remain_after_exit
), SD_BUS_VTABLE_PROPERTY_CONST
),
58 SD_BUS_PROPERTY("GuessMainPID", "b", bus_property_get_bool
, offsetof(Service
, guess_main_pid
), SD_BUS_VTABLE_PROPERTY_CONST
),
59 SD_BUS_PROPERTY("MainPID", "u", bus_property_get_pid
, offsetof(Service
, main_pid
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
60 SD_BUS_PROPERTY("ControlPID", "u", bus_property_get_pid
, offsetof(Service
, control_pid
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
61 SD_BUS_PROPERTY("BusName", "s", NULL
, offsetof(Service
, bus_name
), SD_BUS_VTABLE_PROPERTY_CONST
),
62 SD_BUS_PROPERTY("FileDescriptorStoreMax", "u", NULL
, offsetof(Service
, n_fd_store_max
), SD_BUS_VTABLE_PROPERTY_CONST
),
63 SD_BUS_PROPERTY("StatusText", "s", NULL
, offsetof(Service
, status_text
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
64 SD_BUS_PROPERTY("StatusErrno", "i", NULL
, offsetof(Service
, status_errno
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
65 SD_BUS_PROPERTY("Result", "s", property_get_result
, offsetof(Service
, result
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
66 SD_BUS_PROPERTY("USBFunctionDescriptors", "s", NULL
, offsetof(Service
, usb_function_descriptors
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
67 SD_BUS_PROPERTY("USBFunctionStrings", "s", NULL
, offsetof(Service
, usb_function_strings
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
68 BUS_EXEC_STATUS_VTABLE("ExecMain", offsetof(Service
, main_exec_status
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
69 BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPre", offsetof(Service
, exec_command
[SERVICE_EXEC_START_PRE
]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION
),
70 BUS_EXEC_COMMAND_LIST_VTABLE("ExecStart", offsetof(Service
, exec_command
[SERVICE_EXEC_START
]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION
),
71 BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPost", offsetof(Service
, exec_command
[SERVICE_EXEC_START_POST
]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION
),
72 BUS_EXEC_COMMAND_LIST_VTABLE("ExecReload", offsetof(Service
, exec_command
[SERVICE_EXEC_RELOAD
]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION
),
73 BUS_EXEC_COMMAND_LIST_VTABLE("ExecStop", offsetof(Service
, exec_command
[SERVICE_EXEC_STOP
]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION
),
74 BUS_EXEC_COMMAND_LIST_VTABLE("ExecStopPost", offsetof(Service
, exec_command
[SERVICE_EXEC_STOP_POST
]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION
),
78 static int bus_service_set_transient_property(
81 sd_bus_message
*message
,
82 UnitSetPropertiesMode mode
,
83 sd_bus_error
*error
) {
91 if (streq(name
, "RemainAfterExit")) {
94 r
= sd_bus_message_read(message
, "b", &b
);
98 if (mode
!= UNIT_CHECK
) {
99 s
->remain_after_exit
= b
;
100 unit_write_drop_in_private_format(UNIT(s
), mode
, name
, "RemainAfterExit=%s\n", yes_no(b
));
105 } else if (streq(name
, "Type")) {
109 r
= sd_bus_message_read(message
, "s", &t
);
113 k
= service_type_from_string(t
);
115 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid service type %s", t
);
117 if (mode
!= UNIT_CHECK
) {
119 unit_write_drop_in_private_format(UNIT(s
), mode
, name
, "Type=%s\n", service_type_to_string(s
->type
));
124 } else if (STR_IN_SET(name
,
125 "StandardInputFileDescriptor",
126 "StandardOutputFileDescriptor",
127 "StandardErrorFileDescriptor")) {
130 r
= sd_bus_message_read(message
, "h", &fd
);
134 if (mode
!= UNIT_CHECK
) {
137 copy
= fcntl(fd
, F_DUPFD_CLOEXEC
, 3);
141 if (streq(name
, "StandardInputFileDescriptor")) {
142 asynchronous_close(s
->stdin_fd
);
144 } else if (streq(name
, "StandardOutputFileDescriptor")) {
145 asynchronous_close(s
->stdout_fd
);
148 asynchronous_close(s
->stderr_fd
);
155 } else if (streq(name
, "ExecStart")) {
158 r
= sd_bus_message_enter_container(message
, 'a', "(sasb)");
162 while ((r
= sd_bus_message_enter_container(message
, 'r', "sasb")) > 0) {
163 _cleanup_strv_free_
char **argv
= NULL
;
167 r
= sd_bus_message_read(message
, "s", &path
);
171 if (!path_is_absolute(path
))
172 return sd_bus_error_set_errnof(error
, EINVAL
, "Path %s is not absolute.", path
);
174 r
= sd_bus_message_read_strv(message
, &argv
);
178 r
= sd_bus_message_read(message
, "b", &b
);
182 r
= sd_bus_message_exit_container(message
);
186 if (mode
!= UNIT_CHECK
) {
189 c
= new0(ExecCommand
, 1);
193 c
->path
= strdup(path
);
204 path_kill_slashes(c
->path
);
205 exec_command_append_list(&s
->exec_command
[SERVICE_EXEC_START
], c
);
214 r
= sd_bus_message_exit_container(message
);
218 if (mode
!= UNIT_CHECK
) {
219 _cleanup_free_
char *buf
= NULL
;
220 _cleanup_fclose_
FILE *f
= NULL
;
225 s
->exec_command
[SERVICE_EXEC_START
] = exec_command_free_list(s
->exec_command
[SERVICE_EXEC_START
]);
227 f
= open_memstream(&buf
, &size
);
231 fputs("ExecStart=\n", f
);
233 LIST_FOREACH(command
, c
, s
->exec_command
[SERVICE_EXEC_START
]) {
234 _cleanup_free_
char *a
;
236 a
= strv_join_quoted(c
->argv
);
240 fprintf(f
, "ExecStart=%s@%s %s\n",
241 c
->ignore
? "-" : "",
247 unit_write_drop_in_private(UNIT(s
), mode
, name
, buf
);
256 int bus_service_set_property(
259 sd_bus_message
*message
,
260 UnitSetPropertiesMode mode
,
261 sd_bus_error
*error
) {
263 Service
*s
= SERVICE(u
);
270 r
= bus_cgroup_set_property(u
, &s
->cgroup_context
, name
, message
, mode
, error
);
274 if (u
->transient
&& u
->load_state
== UNIT_STUB
) {
275 /* This is a transient unit, let's load a little more */
277 r
= bus_service_set_transient_property(s
, name
, message
, mode
, error
);
281 r
= bus_exec_context_set_transient_property(u
, &s
->exec_context
, name
, message
, mode
, error
);
285 r
= bus_kill_context_set_transient_property(u
, &s
->kill_context
, name
, message
, mode
, error
);
293 int bus_service_commit_properties(Unit
*u
) {
296 unit_update_cgroup_members_masks(u
);
297 unit_realize_cgroup(u
);