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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2006-2007 Nokia Corporation
* Copyright (C) 2004-2009 Marcel Holtmann <marcel@holtmann.org>
* Copyright (C) 2005-2007 Johan Hedberg <johan.hedberg@nokia.com>
*
*
* 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 <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/l2cap.h>
#include <glib.h>
#include <dbus/dbus.h>
#include <gdbus.h>
#include "logging.h"
#include "manager.h"
#include "adapter.h"
#include "dbus-hci.h"
#include "dbus-common.h"
#define BLUEZ_NAME "org.bluez"
#define RECONNECT_RETRY_TIMEOUT 5000
static gboolean system_bus_reconnect(void *data)
{
DBusConnection *conn = get_dbus_connection();
struct hci_dev_list_req *dl = NULL;
struct hci_dev_req *dr;
int sk, i;
gboolean ret_val = TRUE;
if (conn) {
if (dbus_connection_get_is_connected(conn))
return FALSE;
}
if (hcid_dbus_init() < 0)
return TRUE;
/* Create and bind HCI socket */
sk = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
if (sk < 0) {
error("Can't open HCI socket: %s (%d)",
strerror(errno), errno);
return TRUE;
}
dl = g_malloc0(HCI_MAX_DEV * sizeof(*dr) + sizeof(*dl));
dl->dev_num = HCI_MAX_DEV;
dr = dl->dev_req;
if (ioctl(sk, HCIGETDEVLIST, (void *) dl) < 0) {
info("Can't get device list: %s (%d)",
strerror(errno), errno);
goto failed;
}
/* reset the default device */
manager_set_default_adapter(-1);
/* FIXME: it shouldn't be needed to register adapters again */
for (i = 0; i < dl->dev_num; i++, dr++)
manager_register_adapter(dr->dev_id, TRUE);
ret_val = FALSE;
failed:
if (sk >= 0)
close(sk);
g_free(dl);
return ret_val;
}
static void disconnect_callback(DBusConnection *conn, void *user_data)
{
set_dbus_connection(NULL);
g_timeout_add(RECONNECT_RETRY_TIMEOUT,
system_bus_reconnect, NULL);
}
void hcid_dbus_unregister(void)
{
DBusConnection *conn = get_dbus_connection();
char **children;
int i;
uint16_t dev_id;
if (!conn || !dbus_connection_get_is_connected(conn))
return;
/* Unregister all paths in Adapter path hierarchy */
if (!dbus_connection_list_registered(conn, "/", &children))
return;
for (i = 0; children[i]; i++) {
char path[MAX_PATH_LENGTH];
struct btd_adapter *adapter;
if (children[i][0] != 'h')
continue;
snprintf(path, sizeof(path), "/%s", children[i]);
adapter = manager_find_adapter_by_path(path);
if (!adapter)
continue;
dev_id = adapter_get_dev_id(adapter);
manager_unregister_adapter(dev_id);
}
dbus_free_string_array(children);
}
void hcid_dbus_exit(void)
{
DBusConnection *conn = get_dbus_connection();
if (!conn || !dbus_connection_get_is_connected(conn))
return;
manager_cleanup(conn, "/");
set_dbus_connection(NULL);
dbus_connection_unref(conn);
}
int hcid_dbus_init(void)
{
DBusConnection *conn;
conn = g_dbus_setup_bus(DBUS_BUS_SYSTEM, BLUEZ_NAME, NULL);
if (!conn)
return -1;
if (g_dbus_set_disconnect_function(conn, disconnect_callback,
NULL, NULL) == FALSE) {
dbus_connection_unref(conn);
return -1;
}
if (!manager_init(conn, "/"))
return -1;
set_dbus_connection(conn);
return 0;
}
static void append_variant(DBusMessageIter *iter, int type, void *val)
{
DBusMessageIter value;
char sig[2] = { type, '\0' };
dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, sig, &value);
dbus_message_iter_append_basic(&value, type, val);
dbus_message_iter_close_container(iter, &value);
}
static void append_array_variant(DBusMessageIter *iter, int type, void *val)
{
DBusMessageIter variant, array;
char type_sig[2] = { type, '\0' };
char array_sig[3] = { DBUS_TYPE_ARRAY, type, '\0' };
const char ***str_array = val;
int i;
dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
array_sig, &variant);
dbus_message_iter_open_container(&variant, DBUS_TYPE_ARRAY,
type_sig, &array);
for (i = 0; (*str_array)[i]; i++)
dbus_message_iter_append_basic(&array, type,
&((*str_array)[i]));
dbus_message_iter_close_container(&variant, &array);
dbus_message_iter_close_container(iter, &variant);
}
void dict_append_entry(DBusMessageIter *dict,
const char *key, int type, void *val)
{
DBusMessageIter entry;
if (type == DBUS_TYPE_STRING) {
const char *str = *((const char **) val);
if (str == NULL)
return;
}
dbus_message_iter_open_container(dict, DBUS_TYPE_DICT_ENTRY,
NULL, &entry);
dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
append_variant(&entry, type, val);
dbus_message_iter_close_container(dict, &entry);
}
void dict_append_array(DBusMessageIter *dict, const char *key, int type,
void *val, int n_elements)
{
DBusMessageIter entry;
dbus_message_iter_open_container(dict, DBUS_TYPE_DICT_ENTRY,
NULL, &entry);
dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
append_array_variant(&entry, type, val);
dbus_message_iter_close_container(dict, &entry);
}
dbus_bool_t emit_property_changed(DBusConnection *conn,
const char *path,
const char *interface,
const char *name,
int type, void *value)
{
DBusMessage *signal;
DBusMessageIter iter;
signal = dbus_message_new_signal(path, interface, "PropertyChanged");
if (!signal) {
error("Unable to allocate new %s.PropertyChanged signal",
interface);
return FALSE;
}
dbus_message_iter_init_append(signal, &iter);
dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &name);
append_variant(&iter, type, value);
return g_dbus_send_message(conn, signal);
}
dbus_bool_t emit_array_property_changed(DBusConnection *conn,
const char *path,
const char *interface,
const char *name,
int type, void *value)
{
DBusMessage *signal;
DBusMessageIter iter;
signal = dbus_message_new_signal(path, interface, "PropertyChanged");
if (!signal) {
error("Unable to allocate new %s.PropertyChanged signal",
interface);
return FALSE;
}
dbus_message_iter_init_append(signal, &iter);
dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &name);
append_array_variant(&iter, type, value);
return g_dbus_send_message(conn, signal);
}
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