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 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>
48 #include "dbus-util.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[] = {
67 pa_dbus_connection *connection;
71 static void add_session(struct userdata *u, const char *id) {
73 DBusMessage *m = NULL, *reply = NULL;
75 struct session *session;
78 dbus_error_init (&error);
80 if (pa_hashmap_get(u->sessions, id)) {
81 pa_log_warn("Duplicate session %s, ignoring.", id);
85 if (!(m = dbus_message_new_method_call("org.freedesktop.ConsoleKit", id, "org.freedesktop.ConsoleKit.Session", "GetUnixUser"))) {
86 pa_log("Failed to allocate GetUnixUser() method call.");
90 if (!(reply = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(u->connection), m, -1, &error))) {
91 pa_log("GetUnixUser() call failed: %s: %s", error.name, error.message);
95 /* CK 0.3 this changed from int32 to uint32 */
96 if (!dbus_message_get_args(reply, &error, DBUS_TYPE_UINT32, &uid, DBUS_TYPE_INVALID)) {
97 if (!dbus_message_get_args(reply, &error, DBUS_TYPE_INT32, &uid, DBUS_TYPE_INVALID)) {
98 pa_log("Failed to parse GetUnixUser() result: %s: %s", error.name, error.message);
103 /* We only care about our own sessions */
104 if ((uid_t) uid != getuid())
107 session = pa_xnew(struct session, 1);
108 session->id = pa_xstrdup(id);
110 t = pa_sprintf_malloc("ConsoleKit Session %s", id);
111 session->client = pa_client_new(u->core, __FILE__, t);
114 pa_proplist_sets(session->client->proplist, "console-kit.session", id);
116 pa_hashmap_put(u->sessions, session->id, session);
118 pa_log_debug("Added new session %s", id);
123 dbus_message_unref(m);
126 dbus_message_unref(reply);
128 dbus_error_free(&error);
131 static void free_session(struct session *session) {
134 pa_log_debug("Removing session %s", session->id);
136 pa_client_free(session->client);
137 pa_xfree(session->id);
141 static void remove_session(struct userdata *u, const char *id) {
142 struct session *session;
144 if (!(session = pa_hashmap_remove(u->sessions, id)))
147 free_session(session);
150 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *message, void *userdata) {
151 struct userdata *u = userdata;
159 dbus_error_init(&error);
161 pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
162 dbus_message_get_interface(message),
163 dbus_message_get_path(message),
164 dbus_message_get_member(message));
166 if (dbus_message_is_signal(message, "org.freedesktop.ConsoleKit.Seat", "SessionAdded")) {
168 /* CK API changed to match spec in 0.3 */
169 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
170 if (!dbus_message_get_args(message, &error, DBUS_TYPE_STRING, &path, DBUS_TYPE_INVALID)) {
171 pa_log_error("Failed to parse SessionAdded message: %s: %s", error.name, error.message);
176 add_session(u, path);
178 } else if (dbus_message_is_signal(message, "org.freedesktop.ConsoleKit.Seat", "SessionRemoved")) {
180 /* CK API changed to match spec in 0.3 */
181 if (!dbus_message_get_args(message, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
182 if (!dbus_message_get_args(message, &error, DBUS_TYPE_STRING, &path, DBUS_TYPE_INVALID)) {
183 pa_log_error("Failed to parse SessionRemoved message: %s: %s", error.name, error.message);
188 remove_session(u, path);
192 dbus_error_free(&error);
194 return DBUS_HANDLER_RESULT_HANDLED;
197 static int get_session_list(struct userdata *u) {
199 DBusMessage *m = NULL, *reply = NULL;
201 DBusMessageIter iter, sub;
206 dbus_error_init(&error);
208 if (!(m = dbus_message_new_method_call("org.freedesktop.ConsoleKit", "/org/freedesktop/ConsoleKit/Manager", "org.freedesktop.ConsoleKit.Manager", "GetSessionsForUnixUser"))) {
209 pa_log("Failed to allocate GetSessionsForUnixUser() method call.");
213 uid = (uint32_t) getuid();
214 if (!(dbus_message_append_args(m, DBUS_TYPE_UINT32, &uid, DBUS_TYPE_INVALID))) {
215 pa_log("Failed to append arguments to GetSessionsForUnixUser() method call.");
219 if (!(reply = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(u->connection), m, -1, &error))) {
220 pa_log("GetSessionsForUnixUser() call failed: %s: %s", error.name, error.message);
224 dbus_message_iter_init(reply, &iter);
226 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
227 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_OBJECT_PATH) {
228 pa_log("Failed to parse GetSessionsForUnixUser() result.");
232 dbus_message_iter_recurse(&iter, &sub);
238 if ((at = dbus_message_iter_get_arg_type(&sub)) == DBUS_TYPE_INVALID)
241 assert(at == DBUS_TYPE_OBJECT_PATH);
242 dbus_message_iter_get_basic(&sub, &id);
246 dbus_message_iter_next(&sub);
254 dbus_message_unref(m);
257 dbus_message_unref(reply);
259 dbus_error_free(&error);
264 int pa__init(pa_module*m) {
266 pa_dbus_connection *connection;
267 struct userdata *u = NULL;
272 dbus_error_init(&error);
274 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
275 pa_log("Failed to parse module arguments");
279 if (!(connection = pa_dbus_bus_get(m->core, DBUS_BUS_SYSTEM, &error)) || dbus_error_is_set(&error)) {
282 pa_dbus_connection_unref(connection);
284 pa_log_error("Unable to contact D-Bus system bus: %s: %s", error.name, error.message);
288 m->userdata = u = pa_xnew(struct userdata, 1);
290 u->connection = connection;
291 u->sessions = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
293 if (!dbus_connection_add_filter(pa_dbus_connection_get(connection), filter_cb, u, NULL)) {
294 pa_log_error("Failed to add filter function");
298 dbus_bus_add_match(pa_dbus_connection_get(connection), "type='signal',sender='org.freedesktop.ConsoleKit', interface='org.freedesktop.ConsoleKit.Seat'", &error);
299 if (dbus_error_is_set(&error)) {
300 pa_log_error("Unable to subscribe to ConsoleKit signals: %s: %s", error.name, error.message);
304 if (get_session_list(u) < 0)
315 dbus_error_free(&error);
322 void pa__done(pa_module *m) {
324 struct session *session;
328 if (!(u = m->userdata))
332 while ((session = pa_hashmap_steal_first(u->sessions)))
333 free_session(session);
335 pa_hashmap_free(u->sessions, NULL, NULL);
339 pa_dbus_connection_unref(u->connection);