#!/bin/sh

# include netifd library
. /lib/netifd/netifd-proto.sh
. /lib/functions.sh

uci_interface="$1"

logger -t ovpnserver-up "env value:"`env`

add_default_route()
{
	local subnetv4
	local mask
	local dev_type

	config_load ovpnserver
	config_get dev_type "vpn" "dev_type"
	config_get subnetv4 "vpn" "subnetv4"
	config_get mask "vpn" "mask"

	if [ "${dev_type}" = "tun" ]; then
		proto_add_ipv4_route "$subnetv4" "$mask"
	fi
}

add_route_rules()
{
	local route_flag
	local dest
	local mask
	local gateway
	local metric
	local mtu
	local scope

	config_get route_flag "$1" "route_flag"
	config_get dest "$1" "dest"
	config_get mask "$1" "mask"
	config_get gateway "$1" "gateway"
	config_get metric "$1" "metric"
	config_get mtu "$1" "mtu"
	config_get scope "$1" "scope"

	logger -t ovpnserver-up "route_flag=$route_flag, dest=$dest, mask=$mask, gateway=$gateway, metric=$metric, mtu=$mtu"

	if [ $route_flag = "4" ]; then
		#proto_add_ipv4_route "$dest" "$mask" "$gateway" "" "$metric"
		ip route add "$dest"/"$mask" ${gateway:+via $gateway} dev "ovpnserver" ${scope:+scope $scope} ${mtu:+mtu $mtu} ${metric:+metric $metric}
	elif [ $route_flag = "6" ]; then
		ip -6 route add "$dest"/"$mask" ${gateway:+via $gateway} dev "ovpnserver" ${scope:+scope $scope} ${mtu:+mtu $mtu} ${metric:+metric $metric}
		#proto_add_ipv6_route "$dest" "$mask" "$gateway" "$metric"
	fi
}

add_custom_route_settings()
{
	config_load ovpnserver
	config_foreach add_route_rules route_rules
}

proto_init_update "${dev}" 1
proto_set_keep 1
proto_add_ipv4_address "$ifconfig_local" 32
add_default_route
proto_send_update "$uci_interface"
add_custom_route_settings
exit 0