1#!/usr/local/bin/python3 2# send Address Resolution Protocol Request for Proxy ARP 3# expect Address Resolution Protocol fake response and check all fields 4 5import os 6from addr import * 7from scapy.all import * 8 9arp=ARP(op='who-has', hwsrc=LOCAL_MAC, psrc=LOCAL_ADDR, 10 hwdst="ff:ff:ff:ff:ff:ff", pdst=FAKE_ADDR) 11eth=Ether(src=LOCAL_MAC, dst="ff:ff:ff:ff:ff:ff")/arp 12 13e=srp1(eth, iface=LOCAL_IF, timeout=2) 14 15if e and e.type == ETH_P_ARP: 16 a=e.payload 17 if a.hwtype != ARPHDR_ETHER: 18 print("HWTYPE=%#0.4x != ARPHDR_ETHER" % (a.hwtype)) 19 exit(1) 20 if a.ptype != ETH_P_IP: 21 print("PTYPE=%#0.4x != ETH_P_IP" % (a.ptype)) 22 exit(1) 23 if a.hwlen != 6: 24 print("HWLEN=%d != 6" % (a.hwlen)) 25 exit(1) 26 if a.plen != 4: 27 print("PLEN=%d != 4" % (a.plen)) 28 exit(1) 29 if a.op != 2: 30 print("OP=%s != is-at" % (a.op)) 31 exit(1) 32 if a.hwsrc != FAKE_MAC: 33 print("HWLOCAL=%s != FAKE_MAC" % (a.hwsrc)) 34 exit(1) 35 if a.psrc != FAKE_ADDR: 36 print("PLOCAL=%s != FAKE_ADDR" % (a.psrc)) 37 exit(1) 38 if a.hwdst != LOCAL_MAC: 39 print("HWREMOTE=%s != LOCAL_MAC" % (a.hwdst)) 40 exit(1) 41 if a.pdst != LOCAL_ADDR: 42 print("PREMOTE=%s != LOCAL_ADDR" % (a.pdst)) 43 exit(1) 44 print("arp reply") 45 exit(0) 46 47print("NO ARP REPLY") 48exit(2) 49