4 This file is part of PulseAudio.
6 Copyright 2008 Lennart Poettering
8 PulseAudio is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as published
10 by the Free Software Foundation; either version 2 of the License,
11 or (at your option) any later version.
13 PulseAudio 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 Lesser General Public License
19 along with PulseAudio; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
34 #include <sys/types.h>
37 #include <pulse/xmalloc.h>
38 #include <pulse/timeval.h>
40 #include <pulsecore/core-error.h>
41 #include <pulsecore/module.h>
42 #include <pulsecore/log.h>
43 #include <pulsecore/hashmap.h>
44 #include <pulsecore/idxset.h>
45 #include <pulsecore/core-util.h>
46 #include <pulsecore/namereg.h>
47 #include <pulsecore/core-scache.h>
48 #include <pulsecore/modargs.h>
50 #include "dbus-util.h"
51 #include "module-console-kit-symdef.h"
53 PA_MODULE_AUTHOR("Lennart Poettering");
54 PA_MODULE_DESCRIPTION("Create a client for each ConsoleKit session of this user");
55 PA_MODULE_VERSION(PACKAGE_VERSION);
56 PA_MODULE_LOAD_ONCE(TRUE);
58 static const char* const valid_modargs[] = {
69 pa_dbus_connection *connection;
73 static void add_session(struct userdata *u, const char *id) {
75 DBusMessage *m = NULL, *reply = NULL;
77 struct session *session;
80 dbus_error_init (&error);
82 if (pa_hashmap_get(u->sessions, id)) {
83 pa_log_warn("Duplicate session %s, ignoring.", id);
87 if (!(m = dbus_message_new_method_call("org.freedesktop.ConsoleKit", id, "org.freedesktop.ConsoleKit.Session", "GetUnixUser"))) {
88 pa_log("Failed to allocate GetUnixUser() method call.");
92 if (!(reply = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(u->connection), m, -1, &error))) {
93 pa_log("GetUnixUser() call failed: %s: %s", error.name, error.message);
97 /* FIXME: Why is this in int32? and not an uint32? */
98 if (!dbus_message_get_args(reply, &error, DBUS_TYPE_INT32, &uid, DBUS_TYPE_INVALID)) {
99 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 if (!dbus_message_get_args(message, &error, DBUS_TYPE_STRING, &path, DBUS_TYPE_INVALID) || dbus_error_is_set(&error)) {
169 pa_log_error("Failed to parse SessionAdded message: %s: %s", error.name, error.message);
173 add_session(u, path);
175 } else if (dbus_message_is_signal(message, "org.freedesktop.ConsoleKit.Seat", "SessionRemoved")) {
177 if (!dbus_message_get_args(message, &error, DBUS_TYPE_STRING, &path, DBUS_TYPE_INVALID) || dbus_error_is_set(&error)) {
178 pa_log_error("Failed to parse SessionRemoved message: %s: %s", error.name, error.message);
182 remove_session(u, path);
186 dbus_error_free(&error);
188 return DBUS_HANDLER_RESULT_HANDLED;
191 static int get_session_list(struct userdata *u) {
193 DBusMessage *m = NULL, *reply = NULL;
195 DBusMessageIter iter, sub;
200 dbus_error_init(&error);
202 if (!(m = dbus_message_new_method_call("org.freedesktop.ConsoleKit", "/org/freedesktop/ConsoleKit/Manager", "org.freedesktop.ConsoleKit.Manager", "GetSessionsForUnixUser"))) {
203 pa_log("Failed to allocate GetSessionsForUnixUser() method call.");
207 uid = (uint32_t) getuid();
208 if (!(dbus_message_append_args(m, DBUS_TYPE_UINT32, &uid, DBUS_TYPE_INVALID))) {
209 pa_log("Failed to append arguments to GetSessionsForUnixUser() method call.");
213 if (!(reply = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(u->connection), m, -1, &error))) {
214 pa_log("GetSessionsForUnixUser() call failed: %s: %s", error.name, error.message);
218 dbus_message_iter_init(reply, &iter);
220 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
221 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_OBJECT_PATH) {
222 pa_log("Failed to parse GetSessionsForUnixUser() result.");
226 dbus_message_iter_recurse(&iter, &sub);
232 if ((at = dbus_message_iter_get_arg_type(&sub)) == DBUS_TYPE_INVALID)
235 assert(at == DBUS_TYPE_OBJECT_PATH);
236 dbus_message_iter_get_basic(&sub, &id);
240 dbus_message_iter_next(&sub);
248 dbus_message_unref(m);
251 dbus_message_unref(reply);
253 dbus_error_free(&error);
258 int pa__init(pa_module*m) {
260 pa_dbus_connection *connection;
261 struct userdata *u = NULL;
266 dbus_error_init(&error);
268 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
269 pa_log("Failed to parse module arguments");
273 if (!(connection = pa_dbus_bus_get(m->core, DBUS_BUS_SYSTEM, &error)) || dbus_error_is_set(&error)) {
276 pa_dbus_connection_unref(connection);
278 pa_log_error("Unable to contact D-Bus system bus: %s: %s", error.name, error.message);
282 m->userdata = u = pa_xnew(struct userdata, 1);
284 u->connection = connection;
285 u->sessions = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
287 if (!dbus_connection_add_filter(pa_dbus_connection_get(connection), filter_cb, u, NULL)) {
288 pa_log_error("Failed to add filter function");
292 dbus_bus_add_match(pa_dbus_connection_get(connection), "type='signal',sender='org.freedesktop.ConsoleKit', interface='org.freedesktop.ConsoleKit.Seat'", &error);
293 if (dbus_error_is_set(&error)) {
294 pa_log_error("Unable to subscribe to ConsoleKit signals: %s: %s", error.name, error.message);
298 if (get_session_list(u) < 0)
309 dbus_error_free(&error);
316 void pa__done(pa_module *m) {
318 struct session *session;
322 if (!(u = m->userdata))
325 while ((session = pa_hashmap_steal_first(u->sessions)))
326 free_session(session);
329 pa_dbus_connection_unref(u->connection);