summaryrefslogtreecommitdiffstats
path: root/src/daemon/server-lookup.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/daemon/server-lookup.c')
-rw-r--r--src/daemon/server-lookup.c522
1 files changed, 522 insertions, 0 deletions
diff --git a/src/daemon/server-lookup.c b/src/daemon/server-lookup.c
new file mode 100644
index 00000000..45796e72
--- /dev/null
+++ b/src/daemon/server-lookup.c
@@ -0,0 +1,522 @@
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2009 Tanu Kaskinen
+
+ PulseAudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of the License,
+ or (at your option) any later version.
+
+ PulseAudio is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with PulseAudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <dbus/dbus.h>
+
+#include <pulse/client-conf.h>
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/core.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/dbus-shared.h>
+#include <pulsecore/macro.h>
+#include <pulsecore/protocol-dbus.h>
+
+#include "server-lookup.h"
+
+#define OBJECT_PATH "/org/pulseaudio/server_lookup1"
+#define INTERFACE "org.PulseAudio.ServerLookup1"
+
+struct pa_dbusobj_server_lookup {
+ pa_core *core;
+ pa_dbus_connection *conn;
+ pa_bool_t path_registered;
+};
+
+static const char introspection[] =
+ DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
+ "<node>"
+ " <!-- If you are looking for documentation make sure to check out\n"
+ " http://pulseaudio.org/wiki/DBusInterface -->\n"
+ " <interface name=\"" INTERFACE "\">\n"
+ " <property name=\"Address\" type=\"s\" access=\"read\"/>\n"
+ " </interface>\n"
+ " <interface name=\"" DBUS_INTERFACE_INTROSPECTABLE "\">\n"
+ " <method name=\"Introspect\">\n"
+ " <arg name=\"data\" type=\"s\" direction=\"out\"/>\n"
+ " </method>\n"
+ " </interface>\n"
+ " <interface name=\"" DBUS_INTERFACE_PROPERTIES "\">\n"
+ " <method name=\"Get\">\n"
+ " <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n"
+ " <arg name=\"property_name\" type=\"s\" direction=\"in\"/>\n"
+ " <arg name=\"value\" type=\"v\" direction=\"out\"/>\n"
+ " </method>\n"
+ " <method name=\"Set\">\n"
+ " <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n"
+ " <arg name=\"property_name\" type=\"s\" direction=\"in\"/>\n"
+ " <arg name=\"value\" type=\"v\" direction=\"in\"/>\n"
+ " </method>\n"
+ " <method name=\"GetAll\">\n"
+ " <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n"
+ " <arg name=\"props\" type=\"a{sv}\" direction=\"out\"/>\n"
+ " </method>\n"
+ " </interface>\n"
+ "</node>\n";
+
+static void unregister_cb(DBusConnection *conn, void *user_data) {
+ pa_dbusobj_server_lookup *sl = user_data;
+
+ pa_assert(sl);
+ pa_assert(sl->path_registered);
+
+ sl->path_registered = FALSE;
+}
+
+static DBusHandlerResult handle_introspect(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+ DBusHandlerResult r = DBUS_HANDLER_RESULT_HANDLED;
+ const char *i = introspection;
+ DBusMessage *reply = NULL;
+
+ pa_assert(conn);
+ pa_assert(msg);
+
+ if (!(reply = dbus_message_new_method_return(msg))) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &i, DBUS_TYPE_INVALID)) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+
+finish:
+ if (reply)
+ dbus_message_unref(reply);
+
+ return r;
+}
+
+enum get_address_result_t {
+ SUCCESS,
+ FAILED_TO_LOAD_CLIENT_CONF,
+ SERVER_FROM_TYPE_FAILED
+};
+
+/* Caller frees the returned address. */
+static enum get_address_result_t get_address(pa_server_type_t server_type, char **address) {
+ enum get_address_result_t r = SUCCESS;
+ pa_client_conf *conf = pa_client_conf_new();
+
+ *address = NULL;
+
+ if (pa_client_conf_load(conf, NULL) < 0) {
+ r = FAILED_TO_LOAD_CLIENT_CONF;
+ goto finish;
+ }
+
+ if (conf->default_dbus_server)
+ *address = pa_xstrdup(conf->default_dbus_server);
+ else if (!(*address = pa_get_dbus_address_from_server_type(server_type))) {
+ r = SERVER_FROM_TYPE_FAILED;
+ goto finish;
+ }
+
+finish:
+ pa_client_conf_free(conf);
+ return r;
+}
+
+static DBusHandlerResult handle_get_address(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+ DBusHandlerResult r = DBUS_HANDLER_RESULT_HANDLED;
+ DBusMessage *reply = NULL;
+ char *address = NULL;
+ DBusMessageIter msg_iter;
+ DBusMessageIter variant_iter;
+
+ pa_assert(conn);
+ pa_assert(msg);
+ pa_assert(sl);
+
+ switch (get_address(sl->core->server_type, &address)) {
+ case SUCCESS:
+ if (!(reply = dbus_message_new_method_return(msg))) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ dbus_message_iter_init_append(reply, &msg_iter);
+ if (!dbus_message_iter_open_container(&msg_iter, DBUS_TYPE_VARIANT, "s", &variant_iter)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ if (!dbus_message_iter_append_basic(&variant_iter, DBUS_TYPE_STRING, &address)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ if (!dbus_message_iter_close_container(&msg_iter, &variant_iter)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+ goto finish;
+
+ case FAILED_TO_LOAD_CLIENT_CONF:
+ if (!(reply = dbus_message_new_error(msg, "org.pulseaudio.ClientConfLoadError", "Failed to load client.conf."))) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+ goto finish;
+
+ case SERVER_FROM_TYPE_FAILED:
+ if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_FAILED, "PulseAudio internal error: get_dbus_server_from_type() failed."))) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+ goto finish;
+
+ default:
+ pa_assert_not_reached();
+ }
+
+finish:
+ pa_xfree(address);
+ if (reply)
+ dbus_message_unref(reply);
+
+ return r;
+}
+
+static DBusHandlerResult handle_get(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+ DBusHandlerResult r = DBUS_HANDLER_RESULT_HANDLED;
+ const char* interface;
+ const char* property;
+ DBusMessage *reply = NULL;
+
+ pa_assert(conn);
+ pa_assert(msg);
+ pa_assert(sl);
+
+ if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING, &property, DBUS_TYPE_INVALID)) {
+ if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_INVALID_ARGS, "Invalid arguments"))) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+ goto finish;
+ }
+
+ if (*interface && !pa_streq(interface, INTERFACE)) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+
+ if (!pa_streq(property, "Address")) {
+ if (!(reply = dbus_message_new_error_printf(msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "%s: No such property", property))) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+ goto finish;
+ }
+
+ r = handle_get_address(conn, msg, sl);
+
+finish:
+ if (reply)
+ dbus_message_unref(reply);
+
+ return r;
+}
+
+static DBusHandlerResult handle_set(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+ DBusHandlerResult r = DBUS_HANDLER_RESULT_HANDLED;
+ const char* interface;
+ const char* property;
+ DBusMessage *reply = NULL;
+
+ pa_assert(conn);
+ pa_assert(msg);
+ pa_assert(sl);
+
+ if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &interface, DBUS_TYPE_STRING, &property, DBUS_TYPE_INVALID)) {
+ if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_INVALID_ARGS, "Invalid arguments"))) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+ goto finish;
+ }
+
+ if (*interface && !pa_streq(interface, INTERFACE)) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+
+ if (!pa_streq(property, "Address")) {
+ if (!(reply = dbus_message_new_error_printf(msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "%s: No such property", property))) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+ goto finish;
+ }
+
+ if (!(reply = dbus_message_new_error_printf(msg, DBUS_ERROR_ACCESS_DENIED, "%s: Property not settable", property))) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+
+finish:
+ if (reply)
+ dbus_message_unref(reply);
+
+ return r;
+}
+
+static DBusHandlerResult handle_get_all(DBusConnection *conn, DBusMessage *msg, pa_dbusobj_server_lookup *sl) {
+ DBusHandlerResult r = DBUS_HANDLER_RESULT_HANDLED;
+ DBusMessage *reply = NULL;
+ const char *property = "Address";
+ char *interface = NULL;
+ char *address = NULL;
+ DBusMessageIter msg_iter;
+ DBusMessageIter dict_iter;
+ DBusMessageIter dict_entry_iter;
+ DBusMessageIter variant_iter;
+
+ pa_assert(conn);
+ pa_assert(msg);
+ pa_assert(sl);
+
+ if (!dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &interface, DBUS_TYPE_INVALID)) {
+ if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_INVALID_ARGS, "Invalid arguments"))) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+ goto finish;
+ }
+
+ switch (get_address(sl->core->server_type, &address)) {
+ case SUCCESS:
+ if (!(reply = dbus_message_new_method_return(msg))) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ dbus_message_iter_init_append(reply, &msg_iter);
+ if (!dbus_message_iter_open_container(&msg_iter, DBUS_TYPE_ARRAY, "{sv}", &dict_iter)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ if (!dbus_message_iter_open_container(&dict_iter, DBUS_TYPE_DICT_ENTRY, NULL, &dict_entry_iter)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ if (!dbus_message_iter_append_basic(&dict_entry_iter, DBUS_TYPE_STRING, &property)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ if (!dbus_message_iter_open_container(&dict_entry_iter, DBUS_TYPE_VARIANT, "s", &variant_iter)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ if (!dbus_message_iter_append_basic(&variant_iter, DBUS_TYPE_STRING, &address)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ if (!dbus_message_iter_close_container(&dict_entry_iter, &variant_iter)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ if (!dbus_message_iter_close_container(&dict_iter, &dict_entry_iter)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ if (!dbus_message_iter_close_container(&msg_iter, &dict_iter)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+ goto finish;
+
+ case FAILED_TO_LOAD_CLIENT_CONF:
+ if (!(reply = dbus_message_new_error(msg, "org.pulseaudio.ClientConfLoadError", "Failed to load client.conf."))) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+ goto finish;
+
+ case SERVER_FROM_TYPE_FAILED:
+ if (!(reply = dbus_message_new_error(msg, DBUS_ERROR_FAILED, "PulseAudio internal error: get_dbus_server_from_type() failed."))) {
+ r = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto finish;
+ }
+ if (!dbus_connection_send(conn, reply, NULL)) {
+ r = DBUS_HANDLER_RESULT_NEED_MEMORY;
+ goto finish;
+ }
+ r = DBUS_HANDLER_RESULT_HANDLED;
+ goto finish;
+
+ default:
+ pa_assert_not_reached();
+ }
+
+finish:
+ pa_xfree(address);
+ if (reply)
+ dbus_message_unref(reply);
+
+ return r;
+}
+
+static DBusHandlerResult message_cb(DBusConnection *conn, DBusMessage *msg, void *user_data) {
+ pa_dbusobj_server_lookup *sl = user_data;
+
+ pa_assert(conn);
+ pa_assert(msg);
+ pa_assert(sl);
+
+ /* pa_log("Got message! type = %s path = %s iface = %s member = %s dest = %s", dbus_message_type_to_string(dbus_message_get_type(msg)), dbus_message_get_path(msg), dbus_message_get_interface(msg), dbus_message_get_member(msg), dbus_message_get_destination(msg)); */
+
+ if (dbus_message_get_type(msg) != DBUS_MESSAGE_TYPE_METHOD_CALL)
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+
+ if (dbus_message_is_method_call(msg, DBUS_INTERFACE_INTROSPECTABLE, "Introspect") ||
+ (!dbus_message_get_interface(msg) && dbus_message_has_member(msg, "Introspect")))
+ return handle_introspect(conn, msg, sl);
+
+ if (dbus_message_is_method_call(msg, DBUS_INTERFACE_PROPERTIES, "Get") ||
+ (!dbus_message_get_interface(msg) && dbus_message_has_member(msg, "Get")))
+ return handle_get(conn, msg, sl);
+
+ if (dbus_message_is_method_call(msg, DBUS_INTERFACE_PROPERTIES, "Set") ||
+ (!dbus_message_get_interface(msg) && dbus_message_has_member(msg, "Set")))
+ return handle_set(conn, msg, sl);
+
+ if (dbus_message_is_method_call(msg, DBUS_INTERFACE_PROPERTIES, "GetAll") ||
+ (!dbus_message_get_interface(msg) && dbus_message_has_member(msg, "GetAll")))
+ return handle_get_all(conn, msg, sl);
+
+ return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+static DBusObjectPathVTable vtable = {
+ .unregister_function = unregister_cb,
+ .message_function = message_cb,
+ .dbus_internal_pad1 = NULL,
+ .dbus_internal_pad2 = NULL,
+ .dbus_internal_pad3 = NULL,
+ .dbus_internal_pad4 = NULL
+};
+
+pa_dbusobj_server_lookup *pa_dbusobj_server_lookup_new(pa_core *c) {
+ pa_dbusobj_server_lookup *sl;
+ DBusError error;
+
+ dbus_error_init(&error);
+
+ sl = pa_xnew(pa_dbusobj_server_lookup, 1);
+ sl->core = c;
+ sl->path_registered = FALSE;
+
+ if (!(sl->conn = pa_dbus_bus_get(c, DBUS_BUS_SESSION, &error)) || dbus_error_is_set(&error)) {
+ pa_log("Unable to contact D-Bus: %s: %s", error.name, error.message);
+ goto fail;
+ }
+
+ if (!dbus_connection_register_object_path(pa_dbus_connection_get(sl->conn), OBJECT_PATH, &vtable, sl)) {
+ pa_log("dbus_connection_register_object_path() failed for " OBJECT_PATH ".");
+ goto fail;
+ }
+
+ sl->path_registered = TRUE;
+
+ return sl;
+
+fail:
+ dbus_error_free(&error);
+
+ pa_dbusobj_server_lookup_free(sl);
+
+ return NULL;
+}
+
+void pa_dbusobj_server_lookup_free(pa_dbusobj_server_lookup *sl) {
+ pa_assert(sl);
+
+ if (sl->path_registered) {
+ pa_assert(sl->conn);
+ if (!dbus_connection_unregister_object_path(pa_dbus_connection_get(sl->conn), OBJECT_PATH))
+ pa_log_debug("dbus_connection_unregister_object_path() failed for " OBJECT_PATH ".");
+ }
+
+ if (sl->conn)
+ pa_dbus_connection_unref(sl->conn);
+
+ pa_xfree(sl);
+}