#!/usr/local/bin/python2.7 # send a ping6 packet with routing header type 0 # the address list is empty # we expect a parameter problem from header scanning print "send ping6 packet with routing header type 0 but empty address list" import os from addr import * from scapy.all import * eid=os.getpid() & 0xffff payload="ABCDEFGHIJKLMNOP" packet=IPv6(src=LOCAL_ADDR6, dst=REMOTE_ADDR6)/\ IPv6ExtHdrRouting(addresses=[])/\ ICMPv6EchoRequest(id=eid, data=payload) eth=Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/packet if os.fork() == 0: time.sleep(1) sendp(eth, iface=LOCAL_IF) os._exit(0) ans=sniff(iface=LOCAL_IF, timeout=3, filter= "ip6 and dst "+LOCAL_ADDR6+" and icmp6") for a in ans: if a and a.type == ETH_P_IPV6 and \ ipv6nh[a.payload.nh] == 'ICMPv6' and \ icmp6types[a.payload.payload.type] == 'Parameter problem': pprob=a.payload.payload code=pprob.code print "code=%#d" % (code) if code != 0: print "WRONG PARAMETER PROBLEM CODE" exit(2) ptr=pprob.ptr print "ptr=%#d" % (ptr) if ptr != 42: print "WRONG PARAMETER PROBLEM POINTER" exit(2) exit(0) print "NO ICMP6 PARAMETER PROBLEM" exit(1)