MAC-Spoofing script

From wiki.breedveld.net

This script let you spoof your MAC-address It will use zenity and gedit

Before using, please read the short comment in this script

#!/bin/bash
#-------------------------------------------------------#
# /usr/local/bin/mac_spoof.sh
#
# Mac-Spoofing Script 4 Linux users
#
# 23-09-2009 v1.0 Roland Breedveld
#-------------------------------------------------------#
#
# MAC addresses in /usr/local/bin/mac_addresses.txt
# Fist time running will create is with your own MAC in it
# 
# for some cards you first need to stop the interface 
# for changing the MAC-address, if so uncomment this row:
# export START_STOP_IF_CARD=1
#
#-------------------------------------------------------#

export SCRIPT=`basename ${0}`

if [ -z "$(whoami|grep root)" ]
then
  sudo /usr/local/bin/${SCRIPT} ${*}
else

  while [ -z "${SELECT}" ]
  do
    if [ -z "${CUR_MAC}" ]
    then
      CUR_MAC=$(ifconfig eth0 2>&1 |grep HWaddr|awk '{print $NF}')
    fi
    if [ ! -f /usr/local/bin/mac_addresses.txt -a ! -z "${CUR_MAC}" ]
    then
      echo "Original_MAC ${CUR_MAC}" > /usr/local/bin/mac_addresses.txt
    fi
    SELECT_LIST=$(cat /usr/local/bin/mac_addresses.txt|awk -v mac="${CUR_MAC}" '{if(mac == $2 ){print " TRUE "}else{print " FALSE "}; print $2" "$1}')
    SELECT_LIST="${SELECT_LIST} FALSE edit Edit_MAC_list FALSE new Add_New_MAC"
    SELECT=$(zenity --height=600 --width=400 --list --radiolist --column "Sel" --column "MAC-address" --column "Locatie" ${SELECT_LIST})
    if [  -z "${SELECT}" ]
    then
      exit 1
    fi
  
    if [ "${SELECT}" = "edit" ]
    then
      zenity --info --title="MAC-address Edit" --text="Attention, don't use spaces in the Location desription, but use _"
      gedit /usr/local/bin/mac_addresses.txt
      SELECT=""
      CUR_MAC=""
    fi
    if [ "${SELECT}" = "new" ]
    then
      NEW_MAC=$(zenity  --title "New Address" --entry --text "Type your new MAC-address")
      NEW_LOC=$(zenity  --title "New Address" --entry --text "Type your new Location" |sed 's/ /_/g')
      echo "${NEW_LOC} ${NEW_MAC}" >> /usr/local/bin/mac_addresses.txt
      SELECT=""
      CUR_MAC=${NEW_MAC}
    fi
  done
  
  if [ "${START_STOP_IF_CARD}" = "1" ]
  then
    ifconfig eth0 down
  fi
  ifconfig eth0 hw ether ${SELECT}
  if [ "${START_STOP_IF_CARD}" = "1" ]
  then
  then
    ifconfig eth0 up
  fi
  ifconfig eth0 |grep HWaddr|awk '{print $NF}'
  (
    while [ -z "${IFLINE}" ]
    do
      IFLINE=$(ifconfig eth0|grep "inet addr")
      sleep 1
    done
  )| zenity --text "Wait for ip-address ..." --progress --pulsate --auto-close

  zenity --info --title="MAC-address spoofed" --text="New MAC-addres: ${SELECT} Interface configured to $(ifconfig eth0|grep "inet addr")"
fi