#!/bin/sh

dhcp4_discover () {
	ifup lan_dhcp
}

dhcp4_kill () {
	ifdown lan_dhcp
}

dnsmasq_start () {
	uci revert -P/var/state dhcp.@dnsmasq[0].domainneeded
	uci revert -P/var/state dhcp.@dnsmasq[0].boguspriv
	uci revert -P/var/state dhcp.@dnsmasq[0].rebind_protection
	uci revert -P/var/state dhcp.lan.ignore
	/etc/init.d/dnsmasq restart
}

dnsmasq_stop () {
	uci set -P/var/state dhcp.@dnsmasq[0].domainneeded=
	uci set -P/var/state dhcp.@dnsmasq[0].boguspriv=
	uci set -P/var/state dhcp.@dnsmasq[0].rebind_protection=0
	uci set -P/var/state dhcp.lan.ignore=1
	echo no-dhcp-interface=br-lan >> /var/etc/dnsmasq.conf
	/etc/init.d/dnsmasq restart
}

if [ "$BATTYPE" = "gw" ] ; then
	case "$BATACTION" in
		add) dnsmasq_stop ; dhcp4_discover ;;
		del) dhcp4_kill ; dnsmasq_start ;;
		change) dhcp4_kill ; sleep 5 ; dhcp4_discover ;;
	esac
fi