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#!/usr/bin/env python
# Thu, 13 Mar 14 (PDT)
# ip6.py: Demonstrate IPv6 objects
# Copyright (C) 2014, Nevil Brownlee, U Auckland | WAND
#import ipp
import plt
import natkit
import sys
UAv4 = ipp.from_s("130.216.0.0/16")
UAv6 = ipp.from_s("2001:df0::/47")
linklocal = ipp.from_s("fe80::/10")
multicast = ipp.from_s("ff00::/8")
fh = natkit.FlowHome(UAv4, UAv6) # List of 'home' prefixes'
# hf = fh(pkt) returns:
# hf.src_in_home
# hf.dst_in_home
#
# hf.home_key = if src in home or dst in home
# flow key with home address as dest
# else None
# hf.inward = True if pkt dest was in home
# (outward home_key has addresses and ports swapped)
def print_flow(n, ipf):
print "%5d: %d %3d %5d %5d %s %s" % (n, # v6
ipf.version, ipf.proto, ipf.src_port, ipf.dst_port,
ipf.src_prefix, ipf.dst_prefix)
#key = ipf.fwd_key
#for b in key:
# print " %02x" % ord(b),
#print
print " src_home=%s, dst_home=%s, is_inward=%s" % (
ipf.src_in_home, ipf.dst_in_home, ipf.is_inward)
def test_uri(uri):
t = plt.trace(uri)
t.start()
nip6 = nip = n = 0
for pkt in t:
n += 1
if not (pkt.ip or pkt.ip6):
continue
try:
ipf = fh.flow(pkt)
except:
print "%4d: probably not an IP packet" % n
continue
if not ipf.is_inward:
print_flow(n, ipf)
else:
if pkt.ip:
nip += 1
#if nip <= 4:
print_flow(n, ipf)
elif pkt.ip6:
nip6 += 1
#if nip6 <= 4:
print_flow(n, ipf)
fwd = ipf.fwd_key
print "fwd =",
for b in fwd:
print " %02x" % ord(b),
hk = ipf.home_key
print "\nhom =",
for b in hk:
print " %02x" % ord(b),
print
#if n == 480:
# break
t.close()
test_dir = '../../test/v2-test-cases'
test_uri('pcapfile:'+test_dir+'/home-test.pcap')
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