#!/bin/sh

err() { printf "%s\n" "$@"; }

if [ -z "$1" ] || [ "$1" = "-h" ]
then
    >&2 cat <<EOF
-k kill ssh
-v vpn
-s ssh bindings
-h help
EOF
    exit 1
fi

if [ "$1" = "-k" ]
then
    shift
	pgrep -f -- "ssh.*-L.*vm" | xargs kill
fi

export SSH_ASKPASS="sshpass"
export SSH_ASKPASS_REQUIRE="prefer"
export PASSWORD="zot/qemu"

if [ "$1" = "-v" ]
then
    shift
    err "I: Waiting for connectivity..."
    while ! ssh -o ConnectTimeout=1 -o BatchMode=yes vm 2>&1 | grep "Permission denied" > /dev/null
    do sleep 1
    done

    err "I: Activating vpn"
    ssh vm "rasdial \"vpn.student.ehb.be\""
fi


if [ "$1" = "-s" ]
then
    shift
    keyadd ehb/ai
    ssh -f -N \
        -L 2222:10.2.160.41:22 \
        vm

    keyadd ehb/vm_int
    >&2 printf 'ssh forwardings for vms\n'
    ssh -f -N -L 2223:10.2.160.9:22 vm
    ssh -f -N -L 2224:10.2.160.10:22 vm
    ssh -f -N -L 2225:10.2.160.11:22 vm
    ssh -f -N -L 2226:10.2.160.51:22 vm
fi