#!/bin/bash

IF_NAME="xfrm-"
IF_NAME_IN="${IF_NAME}${PLUTO_IF_ID_IN}-in"
IF_NAME_OUT="${IF_NAME}${PLUTO_IF_ID_OUT}-out"

case "${PLUTO_VERB}" in
    up-client)
        ip link add "${IF_NAME_OUT}" type xfrm if_id "${PLUTO_IF_ID_OUT}" dev eth0
        ip link add "${IF_NAME_IN}" type xfrm if_id "${PLUTO_IF_ID_IN}" dev eth0
        ip link set "${IF_NAME_OUT}" up
        ip link set "${IF_NAME_IN}" up
        ip route add 10.1.0.0/16 dev "${IF_NAME_OUT}"
        iptables -A FORWARD -o "${IF_NAME_OUT}" -j ACCEPT
        iptables -A FORWARD -i "${IF_NAME_IN}" -j ACCEPT
        ;;
    down-client)
        iptables -D FORWARD -o "${IF_NAME_OUT}" -j ACCEPT
        iptables -D FORWARD -i "${IF_NAME_IN}" -j ACCEPT
        ip link del "${IF_NAME_OUT}"
        ip link del "${IF_NAME_IN}"
        ;;
esac