#!/usr/bin/sudo /bin/sh

for x in 1 3; do
    if ! ip link show dummy$x >/dev/null 2>&1; then
        ip link add dummy$x type dummy && ip link set dummy$x up
    fi
    SUBNET=$(sudo ikectl show sa | grep -Poh "10.0.$x.\d+/32" | sort -u | sed -e 's@/32@/24@g')
    CURR=$(ip addr show dev dummy$x label dummy$x:ikeif | grep -Po 'inet \K[\d./]+')
    if test "x${SUBNET}" != "x${CURR}"; then
        ip addr add ${SUBNET} label dummy$x:ikeif dev dummy$x
        if test "x${CURR}" != "x"; then
            ip addr del "${CURR}" dev dummy$x
        fi
    fi
done

#vim: set ft=sh: