1#!/usr/local/bin/python2.7 2# send 2 ping6 fragments with fragmented destination option 3 4import os 5from addr import * 6from scapy.all import * 7 8pid=os.getpid() & 0xffff 9payload="ABCDEFGHIJKLMNOP" 10packet=IPv6(src=SRC_OUT6, dst=DST_IN6)/IPv6ExtHdrDestOpt( \ 11 options=PadN(optdata='\0'*12)/PadN(optdata='\0'*6))/ \ 12 ICMPv6EchoRequest(id=pid, data=payload) 13frag=[] 14frag.append(IPv6ExtHdrFragment(nh=60, id=pid, m=1)/str(packet)[40:48]) 15frag.append(IPv6ExtHdrFragment(nh=60, id=pid, offset=1)/str(packet)[48:88]) 16eth=[] 17for f in frag: 18 pkt=IPv6(src=SRC_OUT6, dst=DST_IN6)/f 19 eth.append(Ether(src=SRC_MAC, dst=DST_MAC)/pkt) 20 21if os.fork() == 0: 22 time.sleep(1) 23 sendp(eth, iface=SRC_IF) 24 os._exit(0) 25 26ans=sniff(iface=SRC_IF, timeout=3, filter= 27 "ip6 and src "+DST_IN6+" and dst "+SRC_OUT6+" and icmp6") 28for a in ans: 29 if a and a.type == ETH_P_IPV6 and \ 30 ipv6nh[a.payload.nh] == 'ICMPv6' and \ 31 icmp6types[a.payload.payload.type] == 'Echo Reply': 32 id=a.payload.payload.id 33 print "id=%#x" % (id) 34 if id != pid: 35 print "WRONG ECHO REPLY ID" 36 exit(2) 37 data=a.payload.payload.data 38 print "payload=%s" % (data) 39 if data == payload: 40 exit(0) 41 print "PAYLOAD!=%s" % (payload) 42 exit(1) 43print "NO ECHO REPLY" 44exit(2) 45