From 87def6c04d68d1a31bfac5ef4ef2eb48cca9d3c5 Mon Sep 17 00:00:00 2001
From: Giulio <giulio@gmx.com>
Date: Fri, 17 Dec 2021 18:31:32 +0100
Subject: [PATCH] First commit

---
 exmaple.py                 |   5 ++
 masstraceroute/__init__.py | 106 +++++++++++++++++++++++++++++++++++++
 2 files changed, 111 insertions(+)
 create mode 100644 exmaple.py
 create mode 100644 masstraceroute/__init__.py

diff --git a/exmaple.py b/exmaple.py
new file mode 100644
index 0000000..ab99369
--- /dev/null
+++ b/exmaple.py
@@ -0,0 +1,5 @@
+import masstraceroute
+
+targets = ["8.8.8.8", "9.9.9.9", "31.13.64.35"]
+t = masstraceroute.MassTraceroute(10, 60, 2, targets, 30)
+t.main()
diff --git a/masstraceroute/__init__.py b/masstraceroute/__init__.py
new file mode 100644
index 0000000..f1bcdcf
--- /dev/null
+++ b/masstraceroute/__init__.py
@@ -0,0 +1,106 @@
+import threading
+import socket
+import logging
+from random import getrandbits
+from time import sleep, time
+from multiprocessing.pool import ThreadPool
+from multiprocessing import Lock
+from threading import Thread
+
+class MassTraceroute:
+	def __init__(self, socket_timeout, listener_timeout, threads, targets, maxhops):
+		logging.info("Setting up class")
+		self.wait = 0.2
+		self.maxhops = maxhops
+		self.listener_timeout = listener_timeout
+		self.socket_timeout = socket_timeout
+		self.targets = targets
+		self.threads = threads
+		self.pool = ThreadPool(processes=self.threads)
+		self.routes = dict()
+		logging.info("creating listener socket")
+		self.listener = self.init_listener()
+		self.sources = dict()
+		self.last_send = 0
+		self.sender = dict()
+		for thread in range(threads):
+			logging.info("Creating #{} sender socket".format(thread))
+			self.sender[thread] = dict()
+			self.sender[thread]['socket'] = self.init_sender()
+			self.sender[thread]['lock'] = Lock()
+
+	def main(self):
+		logging.info("Starting listener thread")
+		Thread(target=self.process_listener).start()
+		logging.info("Starting sender thread")
+		Thread(target=self.process_sender).start()
+
+	def init_listener(self):
+		listener = socket.socket(
+			family=socket.AF_INET,
+			type=socket.SOCK_RAW,
+			proto=socket.IPPROTO_ICMP
+		)
+		listener.settimeout(self.listener_timeout)
+		listener.bind(('', 0))
+		return listener
+
+	def process_listener(self):
+		while((self.last_send + self.listener_timeout) > time()):
+			try:
+				data, addr = self.listener.recvfrom(1024)
+			except socket.error as e:
+				pass
+			srcport = int.from_bytes(data[48:49], byteorder="big")
+			dstport = int.from_bytes(data[50:51], byteorder="big")
+			if srcport in self.sources and dstport in self.sources[srcport]:
+				hop = self.sources[srcport][dstport]
+				ip = self.sources[srcport]["ip"]
+				self.routes[ip][hop] = addr
+			else:
+				logging.error("Received package with srcport or dstport non existsant?")
+
+	def process_sender(self):
+		self.pool.map(self.send, self.targets)
+
+
+	def init_sender(self):
+		sender = socket.socket(
+			family=socket.AF_INET,
+			type=socket.SOCK_DGRAM,
+			proto=socket.IPPROTO_UDP
+		)
+		return sender
+
+	def send(self, dstip):
+		lock = False
+		while(not lock):
+			for thread in range(self.threads):
+				if self.sender[thread]["lock"].acquire():
+					break
+			sleep(self.wait)
+
+		srcport = getrandbits(16)
+		while(srcport not in self.sources):
+			srcport = getrandbits(16)
+	   	
+		self.sources[srcport]["ip"] = dstip
+
+		self.sender[thread]["socket"].bind(('', srcport))
+
+		for ttl in range(self.maxhops):
+			self.sender[thread]["socket"].setsockopt(socket.SOL_IP, socket.IP_TTL, ttl)
+			dstport = getrandbits(16)
+			while(dstport not in self.sources["srcport"]):
+				dstport = getrandbits(16)
+			self.sources["srcport"][dstport] = ttl
+			logging.debug("Sending packet srcport = {}, dstport = {}, ttl = {}, dstip = {}".format(srcport, dstport, ttl, dstip))
+			sender.sendto(b'', (dstip, dstport))
+			self.last_send = time()
+
+		self.thread[sender]["lock"].release()
+
+			
+
+
+