114 lines
3.3 KiB
Python
114 lines
3.3 KiB
Python
import threading
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import socket
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import logging
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from random import getrandbits
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from time import sleep, time
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from multiprocessing.pool import ThreadPool
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from multiprocessing import Lock
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from threading import Thread
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from pprint import pprint
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class MassTraceroute:
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def __init__(self, socket_timeout, listener_timeout, threads, targets, maxhops):
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logging.info("Setting up class")
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self.wait = 0.2
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self.maxhops = maxhops + 1
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self.listener_timeout = listener_timeout
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self.socket_timeout = socket_timeout
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self.targets = targets
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self.threads = threads
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self.pool = ThreadPool(processes=self.threads)
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self.routes = dict()
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for target in self.targets:
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self.routes[target] = dict()
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logging.info("Creating listener socket")
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self.listener = self.init_listener()
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self.sources = dict()
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self.last_send = time()
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def main(self):
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logging.info("Starting listener thread")
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Thread(target=self.process_listener).start()
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logging.info("Starting sender thread")
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Thread(target=self.process_sender).start()
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def init_listener(self):
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listener = socket.socket(
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family=socket.AF_INET,
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type=socket.SOCK_RAW,
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proto=socket.IPPROTO_ICMP
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)
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listener.settimeout(self.listener_timeout)
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listener.bind(('', 0))
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return listener
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def process_listener(self):
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while((self.last_send + self.listener_timeout) > time()):
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logging.debug("Listening...")
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try:
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data, addr = self.listener.recvfrom(1024)
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except socket.error as e:
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logging.debug(e)
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pass
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srcport = int.from_bytes(data[48:50], byteorder="big")
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dstport = int.from_bytes(data[50:52], byteorder="big")
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logging.info("Got data from ip = {}, srcport = {}, dstport = {}, original target = {}, hop = {}".format(addr[0], srcport, dstport, self.sources[srcport]["ip"], self.sources[srcport][dstport]))
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if srcport in self.sources and dstport in self.sources[srcport]:
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hop = self.sources[srcport][dstport]
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ip = self.sources[srcport]["ip"]
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self.routes[ip][hop] = addr[0]
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logging.info(self.routes[ip][hop])
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else:
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logging.error("Received package with srcport or dstport non existsant?")
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pprint(self.routes)
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def process_sender(self):
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logging.info("Starting process_sender")
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#for target in self.targets:
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# self.send(target)
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self.pool.map(self.send, self.targets)
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def init_sender(self):
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sender = socket.socket(
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family=socket.AF_INET,
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type=socket.SOCK_DGRAM,
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proto=socket.IPPROTO_UDP
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)
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return sender
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def send(self, dstip):
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logging.info("Entering send()")
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sender = self.init_sender()
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while(True):
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srcport = getrandbits(16)
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if srcport not in self.sources:
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self.sources[srcport] = dict()
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self.sources[srcport]["ip"] = dstip
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break
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logging.info("Binding sending socket")
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sender.bind(('', srcport))
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for ttl in range(1, self.maxhops):
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sender.setsockopt(socket.SOL_IP, socket.IP_TTL, ttl)
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dstport = getrandbits(16)
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while(True):
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dstport = getrandbits(16)
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if dstport not in self.sources[srcport]:
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self.sources[srcport][dstport] = ttl
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logging.debug("Saved ttl = {}, original ttl = {}, target = {}".format(self.sources[srcport][dstport], ttl, dstip))
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break
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logging.debug("Sending packet srcport = {}, dstport = {}, ttl = {}, dstip = {}".format(srcport, dstport, ttl, dstip))
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sender.sendto(b'', (dstip, dstport))
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self.last_send = time()
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sender.close()
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