Hello,
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What I need :
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I need to write a scanner that test all the IP adresses that repond on
a given port.
The Ip list is of roughly of length 200.
I need to get the response every 60 seconds (or better).
I would prefer first not to use nmap.
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Configuration :
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Python 2.4.1.
To test what is going on I use ethereal.
I am using winXP pro on a 2GHZ P4 and 512 Mo.
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Problem :
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I tried to implement a simplistic threaded version where each thread is
opening a blocking socket on the IP and port.
I have monitored using etherereal that I get one arp query every second
roughly.
I am expecting a speed on the same oder of magnitude as the one that
one can get from a standard IP/port scanner. To compare, I have used
angry Ip scanner and I have seen that roughly 200 arp request where
sent in 20 seconds.
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Also :
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I have also considered using some asynchrone connection but AFAIK you
need first to open the socket and so to use the arp protocol.
Thanks I advance for your help.
Sebastien.
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Code sample :
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# Sebastien 6/9/2006 for testing purposes
import time
import Queue
from threading import *
import threading
import socket
try :
import psyco
psyco.full()
except :
pass
class socket_test (Thread):
def __init__ (self,adresse):
Thread.__init__(self)
self.PORT=21
self.adresse=str(adresse)
print "in thread adresse = ", self.adresse
self.service=[]
self.start()
def run(self) :
service_unit=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
service_unit.setblocking(1)
print "socket Ip = ",self.adresse
try :
service_unit.connect((str(self.adresse), self.PORT))
except Exception,e:
print "exception ",e
self.service.append(service_unit)
class groupe_thread :
def __init__(self,liste):
self.liste=liste
def go(self):
print "self.liste = ",self.liste
for el in self.liste :
print "go starting thread on : ",el
s=socket_test(el)
liste=[]
base ="192.168.3."
rang=range(1,50)
for r in rang:
add=base+str(r)
liste.append(add)
a=groupe_thread(liste)
ut= a.go()
print "the end (main) .."
