RUMPLIBS="-lrumpnet -lrumpnet_net -lrumpnet

#!/bin/sh

RUMPLIBS="-lrumpnet -lrumpnet_net -lrumpnet_netinet \
-lrumpdev -lrumpvfs -lrumpdev_opencrypto -lrumpkern_z \
-lrumpkern_crypto -lrumpnet_wg -lrumpnet_netinet6"
HIJACKING="env LD_PRELOAD=/usr/lib/librumphijack.so \
RUMPHIJACK=path=/rump,socket=all:nolocal,sysctl=yes"

if [ $(whoami) != root ]; then
echo run as root
exit 1
fi

usage()
{
local prog=$(basename $0)

echo "Usage:"
echo -e "\t$prog <id> create"
echo -e "\t$prog <id> destroy"
echo -e "\t$prog <id> ifconfig [args...]"
echo -e "\t$prog <id> wgconfig [args...]"
echo
echo "<id>: must be a numeric number as it's used as an interface ID"
exit 1
}

if [ $# -lt 2 ]; then
usage
fi

ifid=$1
cmd=$2
shift;shift
args="$*"

tun=tun$ifid
wg=wg$ifid

sock=/var/run/wg_rump.${ifid}.sock
export RUMP_SERVER=unix://$sock

case $cmd in
create)
rump_server $RUMPLIBS unix://$sock
rump.ifconfig $wg create
rump.ifconfig $wg linkstr $tun
;;
destroy)
rump.halt
;;
ifconfig)
rump.ifconfig $args
;;
wgconfig)
$HIJACKING wgconfig $args
;;
debug)
$HIJACKING $args
;;
*)
usage
esac