openwrt/package/firewall/files/firewall.hotplug

#!/bin/sh
# This script is executed as part of the hotplug event with
# HOTPLUG_TYPE=iface, triggered by various scripts when an interface
# is configured (ACTION=ifup) or deconfigured (ACTION=ifdown).  The
# interface is available as INTERFACE, the real device as DEVICE.
. /etc/functions.sh

[ "$DEVICE" == "lo" ] && exit 0

. /lib/firewall/core.sh
fw_is_loaded || exit 0
fw_init

case "$ACTION" in
	ifup)
		fw_configure_interface "$INTERFACE" add "$DEVICE" ;;
	ifdown)
		fw_configure_interface "$INTERFACE" del "$DEVICE" ;;
esac