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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2004-2009 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 <errno.h>
#include <unistd.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <net/if.h>
#include <linux/sockios.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/l2cap.h>
#include <bluetooth/bnep.h>
#include "logging.h"
#include "bridge.h"
#include "common.h"
static int bridge_socket = -1;
static const char *gn_bridge = NULL;
static const char *nap_bridge = NULL;
int bridge_init(const char *gn_iface, const char *nap_iface)
{
#if 0
struct stat st;
if (stat("/sys/module/bridge", &st) < 0)
return -EOPNOTSUPP;
#endif
bridge_socket = socket(AF_INET, SOCK_STREAM, 0);
if (bridge_socket < 0) {
error("Failed to open bridge socket: %s (%d)",
strerror(errno), errno);
return -errno;
}
gn_bridge = gn_iface;
nap_bridge = nap_iface;
return 0;
}
void bridge_cleanup(void)
{
close(bridge_socket);
bridge_socket = -1;
}
int bridge_create(int id)
{
int err;
const char *name = bridge_get_name(id);
err = ioctl(bridge_socket, SIOCBRADDBR, name);
if (err < 0)
return -errno;
info("bridge %s created", name);
return 0;
}
int bridge_remove(int id)
{
int err;
const char *name = bridge_get_name(id);
err = bnep_if_down(name);
if (err < 0)
return err;
err = ioctl(bridge_socket, SIOCBRDELBR, name);
if (err < 0)
return -errno;
info("bridge %s removed", name);
return 0;
}
int bridge_add_interface(int id, const char *dev)
{
struct ifreq ifr;
int err;
int ifindex = if_nametoindex(dev);
const char *name = bridge_get_name(id);
if (!name)
return -EINVAL;
if (ifindex == 0)
return -ENODEV;
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, name, IFNAMSIZ - 1);
ifr.ifr_ifindex = ifindex;
err = ioctl(bridge_socket, SIOCBRADDIF, &ifr);
if (err < 0)
return err;
info("bridge %s: interface %s added", name, dev);
err = bnep_if_up(name, id);
if (err < 0)
return err;
return 0;
}
const char *bridge_get_name(int id)
{
if (id == BNEP_SVC_GN)
return gn_bridge;
if (id == BNEP_SVC_NAP)
return nap_bridge;
return NULL;
}
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