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#!/usr/local/bin/python2.7
# send a ping6 packet with routing header type 0
# try to source route
# hide the routing header behind a fragment header to avoid header scan
# we expect an ICMP6 error, as we do not support source routing
print "send with fragment and routing header type 0 to be source routed"
import os
from addr import *
from scapy.all import *
pid=os.getpid()
eid=pid & 0xffff
fid=pid & 0xffffffff
payload="ABCDEFGHIJKLMNOP"
packet=IPv6(src=LOCAL_ADDR6, dst=REMOTE_ADDR6)/\
IPv6ExtHdrFragment(id=fid)/\
IPv6ExtHdrRouting(addresses=[OTHER_FAKE1_ADDR6, OTHER_FAKE2_ADDR6], \
segleft=2)/\
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 != 50:
print "WRONG PARAMETER PROBLEM POINTER"
exit(2)
exit(0)
print "NO ICMP6 PARAMETER PROBLEM"
exit(1)
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