1 files changed, 117 insertions, 0 deletions
diff --git a/libbridge/libbridge_if.c b/libbridge/libbridge_if.c
new file mode 100644
index 0000000..77d3f8a
--- /dev/null
+++ b/libbridge/libbridge_if.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2000 Lennert Buytenhek
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/fcntl.h>
+#include <sys/ioctl.h>
+
+#include "libbridge.h"
+#include "libbridge_private.h"
+
+
+int br_add_bridge(const char *brname)
+{
+	int ret;
+
+#ifdef SIOCBRADDBR
+	ret = ioctl(br_socket_fd, SIOCBRADDBR, brname);
+	if (ret < 0)
+#endif
+	{
+		char _br[IFNAMSIZ];
+		unsigned long arg[3] 
+			= { BRCTL_ADD_BRIDGE, (unsigned long) _br };
+
+		strncpy(_br, brname, IFNAMSIZ);
+		ret = ioctl(br_socket_fd, SIOCSIFBR, arg);
+	} 
+
+	return ret < 0 ? errno : 0;
+}
+
+int br_del_bridge(const char *brname)
+{
+	int ret;
+
+#ifdef SIOCBRDELBR	
+	ret = ioctl(br_socket_fd, SIOCBRDELBR, brname);
+	if (ret < 0)
+#endif
+	{
+		char _br[IFNAMSIZ];
+		unsigned long arg[3] 
+			= { BRCTL_DEL_BRIDGE, (unsigned long) _br };
+
+		strncpy(_br, brname, IFNAMSIZ);
+		ret = ioctl(br_socket_fd, SIOCSIFBR, arg);
+	} 
+	return  ret < 0 ? errno : 0;
+}
+
+int br_add_interface(const char *bridge, const char *dev)
+{
+	struct ifreq ifr;
+	int err;
+	int ifindex = if_nametoindex(dev);
+
+	if (ifindex == 0) 
+		return ENODEV;
+	
+	strncpy(ifr.ifr_name, bridge, IFNAMSIZ);
+#ifdef SIOCBRADDIF
+	ifr.ifr_ifindex = ifindex;
+	err = ioctl(br_socket_fd, SIOCBRADDIF, &ifr);
+	if (err < 0)
+#endif
+	{
+		unsigned long args[4] = { BRCTL_ADD_IF, ifindex, 0, 0 };
+					  
+		ifr.ifr_data = (char *) args;
+		err = ioctl(br_socket_fd, SIOCDEVPRIVATE, &ifr);
+	}
+
+	return err < 0 ? errno : 0;
+}
+
+int br_del_interface(const char *bridge, const char *dev)
+{
+	struct ifreq ifr;
+	int err;
+	int ifindex = if_nametoindex(dev);
+
+	if (ifindex == 0) 
+		return ENODEV;
+	
+	strncpy(ifr.ifr_name, bridge, IFNAMSIZ);
+#ifdef SIOCBRDELIF
+	ifr.ifr_ifindex = ifindex;
+	err = ioctl(br_socket_fd, SIOCBRDELIF, &ifr);
+	if (err < 0)
+#endif		
+	{
+		unsigned long args[4] = { BRCTL_DEL_IF, ifindex, 0, 0 };
+					  
+		ifr.ifr_data = (char *) args;
+		err = ioctl(br_socket_fd, SIOCDEVPRIVATE, &ifr);
+	}
+
+	return err < 0 ? errno : 0;
+}