#!/bin/sh
# Outport: a simple script to expose reverse tunnels via SSH
# Usage: outport.sh {start|stop} user@host [port1] [port2] ...
# Created by Luxferre in 2025, released into public domain
SOCKET_PATH=/var/run/sshcontrol.sock
ACTION="$1"
TARGET="$2"
shift
shift
PORT_OPTS=""
case "$ACTION" in
  start)
    while :; do
      [ -z "$1" ] && break
      PORT_OPTS="$PORT_OPTS -R :$1:localhost:$1"
      shift
    done
    MISC_OPTS="-o ServerAliveInterval=60 -o ServerAliveCountMax=15"
    ssh -f -N -M -S $SOCKET_PATH $PORT_OPTS $MISC_OPTS $TARGET
    echo "Tunnel started"
    ;;
  stop)
    ssh -S $SOCKET_PATH -O cancel $TARGET
    ssh -S $SOCKET_PATH -O exit $TARGET
    echo "Tunnel stopped"
    ;;
  *)
    echo "Invalid action (specify start or stop)"
    ;;
esac