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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2004-2007 Marcel Holtmann <marcel@holtmann.org>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <dbus/dbus.h>
#include "logging.h"
#include "dbus-helper.h"
struct generic_data {
void *user_data;
DBusObjectPathUnregisterFunction unregister_function;
GSList *interfaces;
char *introspect;
};
struct interface_data {
const char *interface;
DBusMethodVTable *methods;
};
DBusHandlerResult dbus_connection_send_and_unref(DBusConnection *connection,
DBusMessage *message)
{
if (message) {
dbus_connection_send(connection, message, NULL);
dbus_message_unref(message);
}
return DBUS_HANDLER_RESULT_HANDLED;
}
static DBusHandlerResult introspect(DBusConnection *connection,
DBusMessage *message, struct generic_data *data)
{
DBusMessage *reply;
if (dbus_message_has_signature(message,
DBUS_TYPE_INVALID_AS_STRING) == FALSE) {
error("Unexpected signature to introspect call");
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
if (!data->introspect)
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
reply = dbus_message_new_method_return(message);
if (!reply)
return DBUS_HANDLER_RESULT_NEED_MEMORY;
dbus_message_append_args(reply, DBUS_TYPE_STRING, &data->introspect,
DBUS_TYPE_INVALID);
return dbus_connection_send_and_unref(connection, reply);
}
static void generic_unregister(DBusConnection *connection, void *user_data)
{
struct generic_data *data = user_data;
if (data->unregister_function)
data->unregister_function(connection, data->user_data);
free(data);
}
static struct interface_data *find_interface(GSList *interfaces,
const char *interface)
{
GSList *list;
for (list = interfaces; list; list = list->next) {
struct interface_data *iface = list->data;
if (!strcmp(interface, iface->interface))
return iface;
}
return NULL;
}
static DBusHandlerResult generic_message(DBusConnection *connection,
DBusMessage *message, void *user_data)
{
struct generic_data *data = user_data;
struct interface_data *iface;
DBusMethodVTable *current;
const char *interface;
if (dbus_message_is_method_call(message, DBUS_INTERFACE_INTROSPECTABLE,
"Introspect") == TRUE)
return introspect(connection, message, data);
interface = dbus_message_get_interface(message);
iface = find_interface(data->interfaces, interface);
if (!iface)
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
for (current = iface->methods;
current->name && current->message_function; current++) {
if (dbus_message_is_method_call(message,
iface->interface, current->name) == FALSE)
continue;
if (dbus_message_has_signature(message,
current->signature) == TRUE)
return current->message_function(connection,
message, data->user_data);
}
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
static DBusObjectPathVTable generic_table = {
.unregister_function = generic_unregister,
.message_function = generic_message,
};
static char simple_xml[] = DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE "<node></node>";
dbus_bool_t dbus_connection_create_object_path(DBusConnection *connection,
const char *path, void *user_data,
DBusObjectPathUnregisterFunction function)
{
struct generic_data *data;
data = malloc(sizeof(*data));
if (!data)
return FALSE;
memset(data, 0, sizeof(*data));
data->user_data = user_data;
data->unregister_function = function;
data->interfaces = NULL;
data->introspect = simple_xml;
if (dbus_connection_register_object_path(connection, path,
&generic_table, data) == FALSE) {
free(data);
return FALSE;
}
return TRUE;
}
dbus_bool_t dbus_connection_destroy_object_path(DBusConnection *connection,
const char *path)
{
return dbus_connection_unregister_object_path(connection, path);
}
dbus_bool_t dbus_connection_register_interface(DBusConnection *connection,
const char *path, const char *interface,
DBusMethodVTable *methods,
DBusPropertyVTable *properties)
{
struct generic_data *data;
struct interface_data *iface;
DBusMethodVTable *current;
if (dbus_connection_get_object_path_data(connection, path,
(void *) &data) == FALSE)
return FALSE;
iface = malloc(sizeof(*iface));
if (!iface)
return FALSE;
memset(iface, 0, sizeof(*iface));
iface->interface = interface;
iface->methods = methods;
for (current = iface->methods; current->name; current++) {
debug("Adding introspection data for %s.%s",
interface, current->name);
}
data->interfaces = g_slist_append(data->interfaces, iface);
return TRUE;
}
dbus_bool_t dbus_connection_unregister_interface(DBusConnection *connection,
const char *path, const char *interface)
{
return TRUE;
}
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