#!/bin/bash

NETDEV=$1

# Load the device definition that was written earlier
IF_DEF=/var/run/vamos/net/${NETDEV}
if [ ! -f ${IF_DEF} ]; then
    echo >&2 No net device definition found for ${NETDEV}
    exit 1
fi
. ${IF_DEF}

# We now have the bridge name as ${BRIDGE}
if [ -z "${BRIDGE}" ]; then
    echo >&2 No bridge device definition found for ${NETDEV}
    exit 1
fi

# Check that the bridge exists and create it if not
if ! /usr/sbin/brctl show | sed -e 1d | grep -q ^${BRIDGE}[[:space:]]; then
    /usr/sbin/brctl addbr ${BRIDGE}
    if [ "${IP}" ]; then
	/sbin/ifconfig ${BRIDGE} ${IP} netmask ${MASK} up
    fi
fi

# Bring up the interface and connect it to the bridge
echo "Connecting interface ${NETDEV} to bridge ${BRIDGE}"
/sbin/ifconfig ${NETDEV} 0.0.0.0 promisc up
/usr/sbin/brctl addif ${BRIDGE} ${NETDEV}