#!/bin/sh
  
if [ ! -x /usr/sbin/brctl ]
then
  exit 0
fi

case "$IF_BRIDGE_PORTS" in
    "")
        exit 0
        ;;
    none)
        INTERFACES=""
        ;;
    *)
        INTERFACES="$IF_BRIDGE_PORTS"
        ;;
esac
  
for IF in $INTERFACES; do
  ip link set down dev $IF && brctl delif $IFACE $IF
done

ip link set down dev $IFACE || exit 1
brctl delbr $IFACE
exit 0