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#!/usr/bin/env python
# Copyright (c) 2009-2014 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import threading
import time
from scapy.all import *
from Queue import *
iface = 'veth1'
class SnifferThread(threading.Thread) :
def __init__(self,q,iface,flt,timeout) :
threading.Thread.__init__(self)
self.q = q
self.iface = iface
self.timeout = timeout
self.flt = flt
print("Sniffers reporting for service on ",self.iface)
def run(self) :
conf.iface=self.iface
conf.iface6=self.iface
r = sniff(filter=self.flt,iface=self.iface,timeout=self.timeout,prn=lambda x: x.summary())
self.q.put(r)
# New "SR" function
# Fire off thread with filter and expected answer packet(s).
# Fire off sniffer thread, main thread sends packet
# Returns true if found
def sr2(answer, *args, **kwargs):
q = Queue()
print("Creating SnifferThreadWorkerThread")
flt='ip proto 41'
iface='veth1'
sniffer = SnifferThread(q,iface,flt,1)
sniffer.setDaemon(True)
sniffer.start()
print "Sending packet:"
send(*args, **kwargs)
sniffer.join()
ps = q.get()
# ps.summary()
print "Number of packets sniffed:", len(ps)
for p in ps:
ip = p.getlayer(1)
print "Comparing", ip.summary(), "and", answer.summary()
if ip == answer:
print "We have a match!!"
return True
return False
aip6 = IPv6(dst='2002:0a0a:0a0a::12')/ICMPv6EchoRequest()
answer= IP(src="10.0.0.100",dst="10.10.10.10",ttl=63)/aip6
packet = IPv6(dst='2002:0a0a:0a0a::12')/ICMPv6EchoRequest()
# From IPv6
sr2(answer, packet,iface='veth1')
#From IPv4
packet = IP(src='10.10.10.10',dst='10.0.0.100')/IPv6(src='2002:0a0a:0a0a::12',dst='1::2')/ICMPv6EchoRequest()
sr2(answer, packet,iface='veth1')
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