1#!/usr/local/bin/python2.7 2# send 2 non-overlapping ping6 fragments with ethernet padding 3 4# |--------|XX| 5# |----|XX| 6 7import os 8from addr import * 9from scapy.all import * 10 11pid=os.getpid() & 0xffff 12payload="ABCDEFGHIJKLMNOP" 13padding="0123" 14packet=IPv6(src=SRC_OUT6, dst=DST_IN6)/ICMPv6EchoRequest(id=pid, data=payload) 15frag=[] 16frag.append(IPv6ExtHdrFragment(nh=58, id=pid, m=1)/str(packet)[40:56]) 17frag.append(IPv6ExtHdrFragment(nh=58, id=pid, offset=2)/str(packet)[56:64]) 18eth=[] 19for f in frag: 20 pkt=str(IPv6(src=SRC_OUT6, dst=DST_IN6)/f) + padding 21 eth.append(Ether(src=SRC_MAC, dst=DST_MAC, type=0x86dd)/pkt) 22 23if os.fork() == 0: 24 time.sleep(1) 25 sendp(eth, iface=SRC_IF) 26 os._exit(0) 27 28ans=sniff(iface=SRC_IF, timeout=3, filter= 29 "ip6 and src "+DST_IN6+" and dst "+SRC_OUT6+" and icmp6") 30for a in ans: 31 if a and a.type == ETH_P_IPV6 and \ 32 ipv6nh[a.payload.nh] == 'ICMPv6' and \ 33 icmp6types[a.payload.payload.type] == 'Echo Reply': 34 id=a.payload.payload.id 35 print "id=%#x" % (id) 36 if id != pid: 37 print "WRONG ECHO REPLY ID" 38 exit(2) 39 data=a.payload.payload.data 40 print "payload=%s" % (data) 41 if data == payload: 42 exit(0) 43 print "PAYLOAD!=%s" % (payload) 44 exit(1) 45print "NO ECHO REPLY" 46exit(2) 47