1 files changed, 148 insertions, 0 deletions
diff --git a/network/bridge.c b/network/bridge.c
new file mode 100644
index 00000000..ba59f380
--- /dev/null
+++ b/network/bridge.c
@@ -0,0 +1,148 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2004-2008  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);
+	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;
+}