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