Mac_change.py

#!/usr/bin/env python

#Create Abdessalam King 
#Script change  MAC Address 
import subprocess
import optparse
import re
def get_args():
    parser = optparse.OptionParser()
    parser.add_option("-i", "--interface", dest="interface", help="Interface to change its MAC address ")
    parser.add_option("-m","--new_mac" , dest="new_mac" , help="NEW Mac address")
    (options,arguments) = parser.parse_args()
    if not options.interface:
        parser.error("[-] Please specify an Interface , use --help for more info.")
    elif not options.new_mac:
         parser.error("[-] Please specify a new_mac , uset --help for more info.")
    return options    
def change_mac(interface,new_mac):
     print("[+]changing new mac address " + interface + " " +new_mac)
     subprocess.call(["ifconfig", interface, "down"])
     subprocess.call(["ifconfig", interface, "hw", "ether", new_mac ])
     subprocess.call(["ifconfig", interface, "up"])

def get_current_mac(interface):
      ifconfig_result = subprocess.check_output(["ifconfig", options.interface])
      mac_address_search_result = re.search(r"\w\w:\w\w:\w\w:\w\w:\w\w:\w\w", ifconfig_result)
      if mac_address_search_result:
           return mac_address_search_result.group(0)
      else : 
           print("[-] Could not read MAC address.")


options = get_args() 
current_mac = get_current_mac(options.interface)
print("Current MAC = " + str(current_mac))
change_mac(options.interface,options.new_mac)
current_mac = get_current_mac(options.interface)
if current_mac == options.new_mac:
    print("[+] MAC address was successflly changed to " + current_mac)
else:
    print("[-] MAC address did not get changed.")