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Source IP added in the extended output

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Alexandre Dulaunoy 2013-06-11 08:20:54 +02:00
parent f732de8c83
commit 2c53ebae21
1 changed files with 5 additions and 4 deletions
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9
nb_collect.py
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@ -2,7 +2,7 @@ import dpkt
import pcap import pcap
import re import re
import sys import sys
import socket
from optparse import OptionParser from optparse import OptionParser
@ -10,7 +10,7 @@ usage = "usage: %prog [options]"
parser = OptionParser(usage) parser = OptionParser(usage)
parser.add_option("-i","--interface", dest="interface", help="live capture on interface (default:lo)") parser.add_option("-i","--interface", dest="interface", help="live capture on interface (default:lo)")
parser.add_option("-r","--read", dest="filedump", help="read pcap file") parser.add_option("-r","--read", dest="filedump", help="read pcap file")
parser.add_option("-e","--extended", dest="extended", help="enable extended format including pcap timestamp") parser.add_option("-e","--extended", dest="extended", action="store_true", help="enable extended format including pcap timestamp")
(options, args) = parser.parse_args() (options, args) = parser.parse_args()
@ -32,11 +32,12 @@ decode = { pcap.DLT_LOOP:dpkt.loopback.Loopback,
try: try:
sys.stderr.write('listening on %s: %s' % (pc.name, pc.filter)) sys.stderr.write('listening on %s: %s' % (pc.name, pc.filter))
for ts, pkt in pc: for ts, pkt in pc:
ip = decode(pkt).data eth = dpkt.ethernet.Ethernet(pkt)
ip = eth.data
udp = ip.data udp = ip.data
if re.search("^nb", udp.data): if re.search("^nb", udp.data):
if options.extended: if options.extended:
print str(ts)+"|"+udp.data print str(ts)+"|"+str(socket.inet_ntoa(ip.src))+"|"+udp.data
else: else:
print udp.data print udp.data
except KeyboardInterrupt: except KeyboardInterrupt: