si-vps-connect.sh

#!/bin/bash

if [ -z "$XDG_RUNTIME_DIR" ] ; then declare -r XDG_RUNTIME_DIR="/tmp" ; fi

set -o errexit
set -o nounset
set -o pipefail

declare -ar servicePortList=( 2001 2002 2010 2011 2012 2013 2014 )
declare -ri sshPort=2000
declare -r  sshSocket="$XDG_RUNTIME_DIR/si-vps-warp.socket"
declare -r  serverFQDN="si.ext.localhost"
declare     username

echo "StudentIngegneria | Secure Wormhole Generator"
echo "Inizializzazione del warp su localhost"
echo ""
printf "Username: " ; read -r username

ssh -fNMS "$sshSocket" -p "$sshPort" -o ControlPersist=yes "${username}@${serverFQDN}"
trap 'ssh -S $sshSocket -qO exit server' TERM INT

for servicePort in ${servicePortList[*]} ; do

		echo -e "\nConnessione all'universo ${servicePort}"
		ssh -fNS "$sshSocket" server \
			-L "localhost:${servicePort}:${serverFQDN}:${servicePort}"

	done

echo -e "\nWarp stabilizzato"
echo "In attesa del segnale di terminazione..."

cat > /dev/null