1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2011 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/>.
26 #include "logind-user.h"
27 #include "dbus-common.h"
29 #define BUS_USER_INTERFACE \
30 " <interface name=\"org.freedesktop.login1.User\">\n" \
31 " <method name=\"Terminate\"/>\n" \
32 " <method name=\"Kill\">\n" \
33 " <arg name=\"signal\" type=\"s\"/>\n" \
35 " <property name=\"UID\" type=\"u\" access=\"read\"/>\n" \
36 " <property name=\"GID\" type=\"u\" access=\"read\"/>\n" \
37 " <property name=\"Name\" type=\"s\" access=\"read\"/>\n" \
38 " <property name=\"Timestamp\" type=\"t\" access=\"read\"/>\n" \
39 " <property name=\"TimestampMonotonic\" type=\"t\" access=\"read\"/>\n" \
40 " <property name=\"RuntimePath\" type=\"s\" access=\"read\"/>\n" \
41 " <property name=\"ControlGroupPath\" type=\"s\" access=\"read\"/>\n" \
42 " <property name=\"Service\" type=\"s\" access=\"read\"/>\n" \
43 " <property name=\"Display\" type=\"(so)\" access=\"read\"/>\n" \
44 " <property name=\"State\" type=\"s\" access=\"read\"/>\n" \
45 " <property name=\"Sessions\" type=\"a(so)\" access=\"read\"/>\n" \
46 " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
47 " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
48 " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
51 #define INTROSPECTION \
52 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
55 BUS_PROPERTIES_INTERFACE \
57 BUS_INTROSPECTABLE_INTERFACE \
60 #define INTERFACES_LIST \
61 BUS_GENERIC_INTERFACES_LIST \
62 "org.freedesktop.login1.User\0"
64 static int bus_user_append_display(DBusMessageIter
*i
, const char *property
, void *data
) {
67 const char *id
, *path
;
74 if (!dbus_message_iter_open_container(i
, DBUS_TYPE_STRUCT
, NULL
, &sub
))
79 path
= p
= session_bus_path(u
->display
);
88 if (!dbus_message_iter_append_basic(&sub
, DBUS_TYPE_STRING
, &id
) ||
89 !dbus_message_iter_append_basic(&sub
, DBUS_TYPE_OBJECT_PATH
, &path
)) {
96 if (!dbus_message_iter_close_container(i
, &sub
))
102 static int bus_user_append_state(DBusMessageIter
*i
, const char *property
, void *data
) {
110 state
= user_state_to_string(user_get_state(u
));
112 if (!dbus_message_iter_append_basic(i
, DBUS_TYPE_STRING
, &state
))
118 static int bus_user_append_sessions(DBusMessageIter
*i
, const char *property
, void *data
) {
119 DBusMessageIter sub
, sub2
;
127 if (!dbus_message_iter_open_container(i
, DBUS_TYPE_ARRAY
, "(so)", &sub
))
130 LIST_FOREACH(sessions_by_user
, session
, u
->sessions
) {
133 if (!dbus_message_iter_open_container(&sub
, DBUS_TYPE_STRUCT
, NULL
, &sub2
))
136 p
= session_bus_path(session
);
140 if (!dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_STRING
, &session
->id
) ||
141 !dbus_message_iter_append_basic(&sub2
, DBUS_TYPE_OBJECT_PATH
, &p
)) {
148 if (!dbus_message_iter_close_container(&sub
, &sub2
))
152 if (!dbus_message_iter_close_container(i
, &sub
))
158 static int bus_user_append_idle_hint(DBusMessageIter
*i
, const char *property
, void *data
) {
166 b
= user_get_idle_hint(u
, NULL
) > 0;
168 if (!dbus_message_iter_append_basic(i
, DBUS_TYPE_BOOLEAN
, &b
))
174 static int bus_user_append_idle_hint_since(DBusMessageIter
*i
, const char *property
, void *data
) {
183 user_get_idle_hint(u
, &t
);
184 k
= streq(property
, "IdleSinceHint") ? t
.realtime
: t
.monotonic
;
186 if (!dbus_message_iter_append_basic(i
, DBUS_TYPE_UINT64
, &k
))
192 static int get_user_for_path(Manager
*m
, const char *path
, User
**_u
) {
201 if (!startswith(path
, "/org/freedesktop/login1/user/"))
204 r
= safe_atolu(path
+ 29, &lu
);
208 u
= hashmap_get(m
->users
, ULONG_TO_PTR(lu
));
216 static const BusProperty bus_login_user_properties
[] = {
217 { "UID", bus_property_append_uid
, "u", offsetof(User
, uid
) },
218 { "GID", bus_property_append_gid
, "u", offsetof(User
, gid
) },
219 { "Name", bus_property_append_string
, "s", offsetof(User
, name
), true },
220 { "Timestamp", bus_property_append_usec
, "t", offsetof(User
, timestamp
.realtime
) },
221 { "TimestampMonotonic", bus_property_append_usec
, "t", offsetof(User
, timestamp
.monotonic
) },
222 { "RuntimePath", bus_property_append_string
, "s", offsetof(User
, runtime_path
), true },
223 { "ControlGroupPath", bus_property_append_string
, "s", offsetof(User
, cgroup_path
), true },
224 { "Service", bus_property_append_string
, "s", offsetof(User
, service
), true },
225 { "Display", bus_user_append_display
, "(so)", 0 },
226 { "State", bus_user_append_state
, "s", 0 },
227 { "Sessions", bus_user_append_sessions
, "a(so)", 0 },
228 { "IdleHint", bus_user_append_idle_hint
, "b", 0 },
229 { "IdleSinceHint", bus_user_append_idle_hint_since
, "t", 0 },
230 { "IdleSinceHintMonotonic", bus_user_append_idle_hint_since
, "t", 0 },
234 static DBusHandlerResult
user_message_dispatch(
236 DBusConnection
*connection
,
237 DBusMessage
*message
) {
240 DBusMessage
*reply
= NULL
;
247 if (dbus_message_is_method_call(message
, "org.freedesktop.login1.User", "Terminate")) {
251 return bus_send_error_reply(connection
, message
, NULL
, r
);
253 reply
= dbus_message_new_method_return(message
);
256 } else if (dbus_message_is_method_call(message
, "org.freedesktop.login1.User", "Kill")) {
259 if (!dbus_message_get_args(
262 DBUS_TYPE_INT32
, &signo
,
264 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
266 if (signo
<= 0 || signo
>= _NSIG
)
267 return bus_send_error_reply(connection
, message
, &error
, -EINVAL
);
269 r
= user_kill(u
, signo
);
271 return bus_send_error_reply(connection
, message
, NULL
, r
);
273 reply
= dbus_message_new_method_return(message
);
278 const BusBoundProperties bps
[] = {
279 { "org.freedesktop.login1.User", bus_login_user_properties
, u
},
283 return bus_default_message_handler(connection
, message
, INTROSPECTION
, INTERFACES_LIST
, bps
);
287 if (!dbus_connection_send(connection
, reply
, NULL
))
290 dbus_message_unref(reply
);
293 return DBUS_HANDLER_RESULT_HANDLED
;
297 dbus_message_unref(reply
);
299 dbus_error_free(&error
);
301 return DBUS_HANDLER_RESULT_NEED_MEMORY
;
304 static DBusHandlerResult
user_message_handler(
305 DBusConnection
*connection
,
306 DBusMessage
*message
,
309 Manager
*m
= userdata
;
313 r
= get_user_for_path(m
, dbus_message_get_path(message
), &u
);
317 return DBUS_HANDLER_RESULT_NEED_MEMORY
;
323 dbus_set_error_const(&e
, DBUS_ERROR_UNKNOWN_OBJECT
, "Unknown user");
324 return bus_send_error_reply(connection
, message
, &e
, r
);
327 return bus_send_error_reply(connection
, message
, NULL
, r
);
330 return user_message_dispatch(u
, connection
, message
);
333 const DBusObjectPathVTable bus_user_vtable
= {
334 .message_function
= user_message_handler
337 char *user_bus_path(User
*u
) {
342 if (asprintf(&s
, "/org/freedesktop/login1/user/%llu", (unsigned long long) u
->uid
) < 0)
348 int user_send_signal(User
*u
, bool new_user
) {
356 m
= dbus_message_new_signal("/org/freedesktop/login1",
357 "org.freedesktop.login1.Manager",
358 new_user
? "UserNew" : "UserRemoved");
363 p
= user_bus_path(u
);
369 if (!dbus_message_append_args(
371 DBUS_TYPE_UINT32
, &uid
,
372 DBUS_TYPE_OBJECT_PATH
, &p
,
376 if (!dbus_connection_send(u
->manager
->bus
, m
, NULL
))
382 dbus_message_unref(m
);
388 int user_send_changed(User
*u
, const char *properties
) {
398 p
= user_bus_path(u
);
402 m
= bus_properties_changed_new(p
, "org.freedesktop.login1.User", properties
);
406 if (!dbus_connection_send(u
->manager
->bus
, m
, NULL
))
413 dbus_message_unref(m
);