#!/bin/sh

[ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1

. /lib/functions.sh

. /lib/netifd/netifd-proto.sh

set_classless_routes() {

	local max=128

	while [ -n "$1" -a -n "$2" -a $max -gt 0 ]; do

		proto_add_ipv4_route "${1%%/*}" "${1##*/}" "$2" "$ip"

		max=$(($max-1))

		shift 2

	done

}

setup_interface () {

	proto_init_update "*" 1

	proto_add_ipv4_address "$ip" "${subnet:-255.255.255.0}"

	# TODO: apply $broadcast

	local ip_net

	eval "$(ipcalc.sh "$ip/$mask")";ip_net="$NETWORK"

	local i

	for i in $router; do

		local gw_net

		eval "$(ipcalc.sh "$i/$mask")";gw_net="$NETWORK"

		[ "$ip_net" != "$gw_net" ] && proto_add_ipv4_route "$i" 32 "" "$ip"

		proto_add_ipv4_route 0.0.0.0 0 "$i" "$ip"

		local r

		for r in $CUSTOMROUTES; do

			proto_add_ipv4_route "${r%%/*}" "${r##*/}" "$i" "$ip"

		done

	done

	# CIDR STATIC ROUTES (rfc3442)

	[ -n "$staticroutes" ] && set_classless_routes $staticroutes

	[ -n "$msstaticroutes" ] && set_classless_routes $msstaticroutes

	for i in $dns; do

		proto_add_dns_server "$i"

	done

	for i in $domain; do

		proto_add_dns_search "$i"

	done

	proto_add_data

	[ -n "$ZONE" ]     && json_add_string zone "$ZONE"

	[ -n "$ntpsrv" ]   && json_add_string ntpserver "$ntpsrv"

	[ -n "$timesvr" ]  && json_add_string timeserver "$timesvr"

	[ -n "$hostname" ] && json_add_string hostname "$hostname"

	[ -n "$message" ]  && json_add_string message "$message"

	[ -n "$timezone" ] && json_add_int timezone "$timezone"

	[ -n "$lease" ]    && json_add_int leasetime "$lease"

	proto_close_data

	proto_send_update "$INTERFACE"

	if [ "$IFACE6RD" != 0 -a -n "$ip6rd" ]; then

		local v4mask="${ip6rd%% *}"

		ip6rd="${ip6rd#* }"

		local ip6rdprefixlen="${ip6rd%% *}"

		ip6rd="${ip6rd#* }"

		local ip6rdprefix="${ip6rd%% *}"

		ip6rd="${ip6rd#* }"

		local ip6rdbr="${ip6rd%% *}"

		[ -n "$ZONE" ] || ZONE=$(fw3 -q network $INTERFACE 2>/dev/null)

		[ -z "$IFACE6RD" -o "$IFACE6RD" = 1 ] && IFACE6RD=${INTERFACE}_6

		json_init

		json_add_string name "$IFACE6RD"

		json_add_string ifname "@$INTERFACE"

		json_add_string proto "6rd"

		json_add_string peeraddr "$ip6rdbr"

		json_add_int ip4prefixlen "$v4mask"

		json_add_string ip6prefix "$ip6rdprefix"

		json_add_int ip6prefixlen "$ip6rdprefixlen"

		json_add_string tunlink "$INTERFACE"

		[ -n "$IFACE6RD_DELEGATE" ] && json_add_boolean delegate "$IFACE6RD_DELEGATE"

		[ -n "$ZONE6RD" ] || ZONE6RD=$ZONE

		[ -n "$ZONE6RD" ] && json_add_string zone "$ZONE6RD"

		[ -n "$MTU6RD" ] && json_add_string mtu "$MTU6RD"

		json_close_object

		ubus call network add_dynamic "$(json_dump)"

	fi

}

deconfig_interface() {

	proto_init_update "*" 0

	proto_send_update "$INTERFACE"

}

case "$1" in

	deconfig)

		deconfig_interface

	;

	renew|bound)

		setup_interface

	;

esac

# user rules

[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user "$@"

exit 0