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/>.
22 #include "selinux-access.h"
27 #include "bus-internal.h"
28 #include "bus-common-errors.h"
29 #include "dbus-unit.h"
30 #include "dbus-cgroup.h"
31 #include "dbus-kill.h"
32 #include "dbus-scope.h"
34 static int bus_scope_abandon(sd_bus_message
*message
, void *userdata
, sd_bus_error
*error
) {
41 r
= mac_selinux_unit_access_check(UNIT(s
), message
, "stop", error
);
45 r
= bus_verify_manage_units_async(UNIT(s
)->manager
, message
, error
);
49 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
53 return sd_bus_error_setf(error
, BUS_ERROR_SCOPE_NOT_RUNNING
, "Scope %s is not running, cannot abandon.", UNIT(s
)->id
);
57 return sd_bus_reply_method_return(message
, NULL
);
60 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result
, scope_result
, ScopeResult
);
62 const sd_bus_vtable bus_scope_vtable
[] = {
63 SD_BUS_VTABLE_START(0),
64 SD_BUS_PROPERTY("Controller", "s", NULL
, offsetof(Scope
, controller
), SD_BUS_VTABLE_PROPERTY_CONST
),
65 SD_BUS_PROPERTY("TimeoutStopUSec", "t", bus_property_get_usec
, offsetof(Scope
, timeout_stop_usec
), SD_BUS_VTABLE_PROPERTY_CONST
),
66 SD_BUS_PROPERTY("Result", "s", property_get_result
, offsetof(Scope
, result
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
67 SD_BUS_SIGNAL("RequestStop", NULL
, 0),
68 SD_BUS_METHOD("Abandon", NULL
, NULL
, bus_scope_abandon
, SD_BUS_VTABLE_UNPRIVILEGED
),
72 static int bus_scope_set_transient_property(
75 sd_bus_message
*message
,
76 UnitSetPropertiesMode mode
,
77 sd_bus_error
*error
) {
85 if (streq(name
, "PIDs")) {
89 r
= sd_bus_message_enter_container(message
, 'a', "u");
93 while ((r
= sd_bus_message_read(message
, "u", &pid
)) > 0) {
98 if (mode
!= UNIT_CHECK
) {
99 r
= unit_watch_pid(UNIT(s
), pid
);
100 if (r
< 0 && r
!= -EEXIST
)
109 r
= sd_bus_message_exit_container(message
);
118 } else if (streq(name
, "Controller")) {
119 const char *controller
;
122 r
= sd_bus_message_read(message
, "s", &controller
);
126 if (!isempty(controller
) && !service_name_is_valid(controller
))
127 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Controller '%s' is not a valid bus name.", controller
);
129 if (mode
!= UNIT_CHECK
) {
130 if (isempty(controller
))
133 c
= strdup(controller
);
144 } else if (streq(name
, "TimeoutStopUSec")) {
146 if (mode
!= UNIT_CHECK
) {
147 r
= sd_bus_message_read(message
, "t", &s
->timeout_stop_usec
);
151 unit_write_drop_in_format(UNIT(s
), mode
, name
, "[Scope]\nTimeoutStopSec="USEC_FMT
"us\n", s
->timeout_stop_usec
);
153 r
= sd_bus_message_skip(message
, "t");
164 int bus_scope_set_property(
167 sd_bus_message
*message
,
168 UnitSetPropertiesMode mode
,
169 sd_bus_error
*error
) {
178 r
= bus_cgroup_set_property(u
, &s
->cgroup_context
, name
, message
, mode
, error
);
182 if (u
->load_state
== UNIT_STUB
) {
183 /* While we are created we still accept PIDs */
185 r
= bus_scope_set_transient_property(s
, name
, message
, mode
, error
);
189 r
= bus_kill_context_set_transient_property(u
, &s
->kill_context
, name
, message
, mode
, error
);
197 int bus_scope_commit_properties(Unit
*u
) {
200 unit_update_cgroup_members_masks(u
);
201 unit_realize_cgroup(u
);
206 int bus_scope_send_request_stop(Scope
*s
) {
207 _cleanup_bus_message_unref_ sd_bus_message
*m
= NULL
;
208 _cleanup_free_
char *p
= NULL
;
216 p
= unit_dbus_path(UNIT(s
));
220 r
= sd_bus_message_new_signal(
221 UNIT(s
)->manager
->api_bus
,
224 "org.freedesktop.systemd1.Scope",
229 return sd_bus_send_to(UNIT(s
)->manager
->api_bus
, m
, /* s->controller */ NULL
, NULL
);