#!/bin/bash

func_iptables_vm() {

  if [ -z $1 ] ; then
    echo "Please specify a .vm file."
    return 1
  fi

  . $1

  echo $ip
  for port_mapping in $port_mappings
  do
    ports=(${port_mapping//;/ })
    sudo iptables -t nat -A PREROUTING -i eno1 -p tcp --dport ${ports[1]} -j DNAT --to ${ip}:${ports[0]}
  done
}

if [ $# -ne "1" ] || [ ! -e $1 ] ; then
  echo "usage: $0 <file>|<dir>"
  exit 1
fi

# if the argument is a directory, 
sudo iptables -R FORWARD 1 -d 192.168.122.0/24 -j ACCEPT
if [ -d $1 ] ; then
  for file in $1/*.vm
  do
    func_iptables_vm $file
  done
fi

# if the argument is a file
if [ -f $1 ] ; then
  sudo iptables -R FORWARD 1 -d 192.168.122.0/24 -j ACCEPT
  func_iptables_vm $1
fi