2 This file is part of PulseAudio.
4 Copyright 2008 Lennart Poettering
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2.1 of the License,
9 or (at your option) any later version.
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
32 #include <sys/types.h>
35 #include <pulse/xmalloc.h>
36 #include <pulse/timeval.h>
38 #include <pulsecore/core-error.h>
39 #include <pulsecore/module.h>
40 #include <pulsecore/log.h>
41 #include <pulsecore/hashmap.h>
42 #include <pulsecore/idxset.h>
43 #include <pulsecore/core-util.h>
44 #include <pulsecore/namereg.h>
45 #include <pulsecore/core-scache.h>
46 #include <pulsecore/modargs.h>
47 #include <pulsecore/dbus-shared.h>
49 #include "module-console-kit-symdef.h"
51 PA_MODULE_AUTHOR("Lennart Poettering");
52 PA_MODULE_DESCRIPTION("Create a client for each ConsoleKit session of this user");
53 PA_MODULE_VERSION(PACKAGE_VERSION
);
54 PA_MODULE_LOAD_ONCE(TRUE
);
56 static const char* const valid_modargs
[] = {
68 pa_dbus_connection
*connection
;
72 static void add_session(struct userdata
*u
, const char *id
) {
74 DBusMessage
*m
= NULL
, *reply
= NULL
;
76 struct session
*session
;
77 pa_client_new_data data
;
79 dbus_error_init (&error
);
81 if (pa_hashmap_get(u
->sessions
, id
)) {
82 pa_log_warn("Duplicate session %s, ignoring.", id
);
86 if (!(m
= dbus_message_new_method_call("org.freedesktop.ConsoleKit", id
, "org.freedesktop.ConsoleKit.Session", "GetUnixUser"))) {
87 pa_log("Failed to allocate GetUnixUser() method call.");
91 if (!(reply
= dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(u
->connection
), m
, -1, &error
))) {
92 pa_log("GetUnixUser() call failed: %s: %s", error
.name
, error
.message
);
96 /* CK 0.3 this changed from int32 to uint32 */
97 if (!dbus_message_get_args(reply
, &error
, DBUS_TYPE_UINT32
, &uid
, DBUS_TYPE_INVALID
)) {
98 dbus_error_free(&error
);
100 if (!dbus_message_get_args(reply
, &error
, DBUS_TYPE_INT32
, &uid
, DBUS_TYPE_INVALID
)) {
101 pa_log("Failed to parse GetUnixUser() result: %s: %s", error
.name
, error
.message
);
106 /* We only care about our own sessions */
107 if ((uid_t
) uid
!= getuid())
110 session
= pa_xnew(struct session
, 1);
111 session
->id
= pa_xstrdup(id
);
113 pa_client_new_data_init(&data
);
114 data
.module
= u
->module
;
115 data
.driver
= __FILE__
;
116 pa_proplist_setf(data
.proplist
, PA_PROP_APPLICATION_NAME
, "ConsoleKit Session %s", id
);
117 pa_proplist_sets(data
.proplist
, "console-kit.session", id
);
118 session
->client
= pa_client_new(u
->core
, &data
);
119 pa_client_new_data_done(&data
);
121 if (!session
->client
) {
122 pa_xfree(session
->id
);
127 pa_hashmap_put(u
->sessions
, session
->id
, session
);
129 pa_log_debug("Added new session %s", id
);
134 dbus_message_unref(m
);
137 dbus_message_unref(reply
);
139 dbus_error_free(&error
);
142 static void free_session(struct session
*session
) {
145 pa_log_debug("Removing session %s", session
->id
);
147 pa_client_free(session
->client
);
148 pa_xfree(session
->id
);
152 static void remove_session(struct userdata
*u
, const char *id
) {
153 struct session
*session
;
155 if (!(session
= pa_hashmap_remove(u
->sessions
, id
)))
158 free_session(session
);
161 static DBusHandlerResult
filter_cb(DBusConnection
*bus
, DBusMessage
*message
, void *userdata
) {
162 struct userdata
*u
= userdata
;
170 dbus_error_init(&error
);
172 pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
173 dbus_message_get_interface(message
),
174 dbus_message_get_path(message
),
175 dbus_message_get_member(message
));
177 if (dbus_message_is_signal(message
, "org.freedesktop.ConsoleKit.Seat", "SessionAdded")) {
179 /* CK API changed to match spec in 0.3 */
180 if (!dbus_message_get_args(message
, &error
, DBUS_TYPE_OBJECT_PATH
, &path
, DBUS_TYPE_INVALID
)) {
181 dbus_error_free(&error
);
183 if (!dbus_message_get_args(message
, &error
, DBUS_TYPE_STRING
, &path
, DBUS_TYPE_INVALID
)) {
184 pa_log_error("Failed to parse SessionAdded message: %s: %s", error
.name
, error
.message
);
189 add_session(u
, path
);
190 return DBUS_HANDLER_RESULT_HANDLED
;
192 } else if (dbus_message_is_signal(message
, "org.freedesktop.ConsoleKit.Seat", "SessionRemoved")) {
194 /* CK API changed to match spec in 0.3 */
195 if (!dbus_message_get_args(message
, &error
, DBUS_TYPE_OBJECT_PATH
, &path
, DBUS_TYPE_INVALID
)) {
196 dbus_error_free(&error
);
198 if (!dbus_message_get_args(message
, &error
, DBUS_TYPE_STRING
, &path
, DBUS_TYPE_INVALID
)) {
199 pa_log_error("Failed to parse SessionRemoved message: %s: %s", error
.name
, error
.message
);
204 remove_session(u
, path
);
205 return DBUS_HANDLER_RESULT_HANDLED
;
209 dbus_error_free(&error
);
211 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED
;
214 static int get_session_list(struct userdata
*u
) {
216 DBusMessage
*m
= NULL
, *reply
= NULL
;
218 DBusMessageIter iter
, sub
;
223 dbus_error_init(&error
);
225 if (!(m
= dbus_message_new_method_call("org.freedesktop.ConsoleKit", "/org/freedesktop/ConsoleKit/Manager", "org.freedesktop.ConsoleKit.Manager", "GetSessionsForUnixUser"))) {
226 pa_log("Failed to allocate GetSessionsForUnixUser() method call.");
230 uid
= (uint32_t) getuid();
231 if (!(dbus_message_append_args(m
, DBUS_TYPE_UINT32
, &uid
, DBUS_TYPE_INVALID
))) {
232 pa_log("Failed to append arguments to GetSessionsForUnixUser() method call.");
236 if (!(reply
= dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(u
->connection
), m
, -1, &error
))) {
237 pa_log("GetSessionsForUnixUser() call failed: %s: %s", error
.name
, error
.message
);
241 dbus_message_iter_init(reply
, &iter
);
243 if (dbus_message_iter_get_arg_type(&iter
) != DBUS_TYPE_ARRAY
||
244 dbus_message_iter_get_element_type(&iter
) != DBUS_TYPE_OBJECT_PATH
) {
245 pa_log("Failed to parse GetSessionsForUnixUser() result.");
249 dbus_message_iter_recurse(&iter
, &sub
);
255 if ((at
= dbus_message_iter_get_arg_type(&sub
)) == DBUS_TYPE_INVALID
)
258 assert(at
== DBUS_TYPE_OBJECT_PATH
);
259 dbus_message_iter_get_basic(&sub
, &id
);
263 dbus_message_iter_next(&sub
);
271 dbus_message_unref(m
);
274 dbus_message_unref(reply
);
276 dbus_error_free(&error
);
281 int pa__init(pa_module
*m
) {
283 pa_dbus_connection
*connection
;
284 struct userdata
*u
= NULL
;
289 dbus_error_init(&error
);
291 if (!(ma
= pa_modargs_new(m
->argument
, valid_modargs
))) {
292 pa_log("Failed to parse module arguments");
296 if (!(connection
= pa_dbus_bus_get(m
->core
, DBUS_BUS_SYSTEM
, &error
)) || dbus_error_is_set(&error
)) {
299 pa_dbus_connection_unref(connection
);
301 pa_log_error("Unable to contact D-Bus system bus: %s: %s", error
.name
, error
.message
);
305 m
->userdata
= u
= pa_xnew(struct userdata
, 1);
308 u
->connection
= connection
;
309 u
->sessions
= pa_hashmap_new(pa_idxset_string_hash_func
, pa_idxset_string_compare_func
);
311 if (!dbus_connection_add_filter(pa_dbus_connection_get(connection
), filter_cb
, u
, NULL
)) {
312 pa_log_error("Failed to add filter function");
316 if (pa_dbus_add_matches(
317 pa_dbus_connection_get(connection
), &error
,
318 "type='signal',sender='org.freedesktop.ConsoleKit',interface='org.freedesktop.ConsoleKit.Seat',member='SessionAdded'",
319 "type='signal',sender='org.freedesktop.ConsoleKit',interface='org.freedesktop.ConsoleKit.Seat',member='SessionRemoved'", NULL
) < 0) {
320 pa_log_error("Unable to subscribe to ConsoleKit signals: %s: %s", error
.name
, error
.message
);
324 if (get_session_list(u
) < 0)
335 dbus_error_free(&error
);
342 void pa__done(pa_module
*m
) {
344 struct session
*session
;
348 if (!(u
= m
->userdata
))
352 while ((session
= pa_hashmap_steal_first(u
->sessions
)))
353 free_session(session
);
355 pa_hashmap_free(u
->sessions
, NULL
, NULL
);
359 pa_dbus_remove_matches(
360 pa_dbus_connection_get(u
->connection
),
361 "type='signal',sender='org.freedesktop.ConsoleKit',interface='org.freedesktop.ConsoleKit.Seat',member='SessionAdded'",
362 "type='signal',sender='org.freedesktop.ConsoleKit',interface='org.freedesktop.ConsoleKit.Seat',member='SessionRemoved'", NULL
);
364 dbus_connection_remove_filter(pa_dbus_connection_get(u
->connection
), filter_cb
, u
);
365 pa_dbus_connection_unref(u
->connection
);