. /lib/functions.sh

configure() {
	local router_ip
	local router_ip6

	# clean old addresses
	uci -q del network.loopback.ipaddr
	uci -q del network.loopback.ip6addr

	# remove netmask entry that ships by default
	uci -q del network.loopback.netmask

	# clean old rules
	remove_rules() {
		local name="$1"

		# check if filter was added by this script
		if ! [ "$(uci -q get network.$name.addedbyautoconfig)" = '30-network-routerip' ]; then
			return
		fi

		uci -q del network.$name
	}

	config_load network
	config_foreach remove_rules rule
	config_foreach remove_rules rule6

	# add router_ip
	router_ip=$(uci -q get gateway.meta.router_ip)
	for ip in $router_ip; do
		uci -q add_list network.loopback.ipaddr="$ip"

		# CIDR notation required
		case $ip in
			*/*)
				# do nothing; ip is already in CIDR notation
				;;
			*)
				ip="$ip/32"
				;;
		esac

		config=$(uci add network rule)
		uci -q set network.$config.src="$ip"
		uci -q set network.$config.lookup='fff'
		# default prio for the ip4table interface option is 10000
		uci -q set network.$config.priority='10000'
		uci -q set network.$config.addedbyautoconfig='30-network-routerip'
	done

	# add router_ip6
	router_ip6=$(uci -q get gateway.meta.router_ip6)
	for ip in $router_ip6; do
		uci -q add_list network.loopback.ip6addr="$ip"

		# CIDR notation required
		case $ip in
			*/*)
				# do nothing; ip is already in CIDR notation
				;;
			*)
				ip="$ip/128"
				;;
		esac

		config=$(uci add network rule6)
		uci -q set network.$config.src="$ip"
		uci -q set network.$config.lookup='fff'
		# default prio for the ip6table interface option is 10000
		uci -q set network.$config.priority='10000'
		uci -q set network.$config.addedbyautoconfig='30-network-routerip'
	done
}

apply() {
	uci commit network
}

revert() {
	uci revert network
}