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#!/usr/bin/env python |
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from __future__ import print_function |
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import sys |
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import json |
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import socket |
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import time |
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import tracerouteparser |
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import signal |
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from requests import post, get, ConnectionError |
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from subprocess import check_output, Popen, PIPE |
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from multiprocessing import Pool |
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from traceroutedb.log import logger |
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ON_POSIX = 'posix' in sys.builtin_module_names |
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def init_worker(handler=signal.SIG_IGN): |
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signal.signal(signal.SIGINT, handler) |
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def own_ips(): |
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return check_output(["ip", "-4", "addr", "list"]) |
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global OWN_IPS |
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OWN_IPS = own_ips() |
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def ext_ip(): |
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""" |
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We make the assumtion that we ony have one gateway to any one destination, |
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could be better to use "ip route get $ip" but that won't cover NAT scenario |
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""" |
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try: |
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resp = get('https://httpbin.org/ip') |
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return resp.json()["origin"] |
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except ConnectionError as e: |
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logger.warning("Could not get external ip:\n" + str(e)) |
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return None |
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def pack_ips(ips, config, URL): |
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""" |
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The only reason we need to pack all this info into a list is that |
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we only get to pass one iterable to function from map_async or |
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thats how I (poorly) understand it |
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""" |
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ret = [] |
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detected_ext_ip = ext_ip() |
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for ip in ips: |
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ip_dict = {} |
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ip = str(ip) |
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ip_dict["note"] = config.get("note", None) |
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ip_dict["ext_ip"] = detected_ext_ip |
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ip_dict["url"] = URL |
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ip_dict["ip"] = ip |
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ip_dict["simulate"] = config.get("simulate", None) |
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ret.append(ip_dict) |
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return ret |
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def calc_ips(config): |
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""" |
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Collapse ips from file and command line |
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""" |
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if config.get("ips", False): |
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ips = config.ips |
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if config.get("ips_file", False): |
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logger.warning("-i overrides ips from file with -f") |
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elif config.ips_file: |
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ips = [] |
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with open(config.ips_file) as f: |
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for line in f.readlines(): |
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if line.strip().startswith("#"): |
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continue |
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ips.append(line.strip().split(",")[1]) |
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else: |
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logger.error("No ips defined, exiting") |
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sys.exit(1) |
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return ips |
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def submit_trace(ip_dict, result): |
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if result is None: |
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return |
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if ip_dict.get("simulate"): |
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print(json.dumps(result)) |
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else: |
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try: |
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r = post(ip_dict["url"], data=json.dumps(result)) |
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logger.debug(r) |
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except ConnectionError as e: |
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print(e) |
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def run_trace(ip_pack): |
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ip = ip_pack["ip"] |
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if ip in OWN_IPS: |
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return None |
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signal.signal(signal.SIGINT, signal.SIG_DFL) |
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try: |
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proc = Popen(["/usr/sbin/traceroute", ip, "30"], stdout=PIPE, stderr=PIPE) # noqa |
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out, err = proc.communicate() |
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except KeyboardInterrupt: |
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proc.terminate() |
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proc.kill() |
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return None |
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signal.signal(signal.SIGINT, signal.SIG_IGN) |
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src_ip = check_output(["ip", "route", "get", ip]).splitlines()[0].split()[-1] # noqa |
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trp = tracerouteparser.TracerouteParser() |
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trp.parse_data(out) |
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data = {} |
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data["dst_ip"] = trp.dest_ip |
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data["src_ip"] = src_ip |
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data["dst_name"] = trp.dest_name |
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data["hops"] = {} |
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for hop in trp.hops: |
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data["hops"][int(hop.idx)] = [] |
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for probe in hop.probes: |
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data["hops"][int(hop.idx)].append({"name": probe.name, |
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"ip": probe.ipaddr, |
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"rtt": probe.rtt, |
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"anno": probe.anno}) |
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ret = {"reporter": socket.gethostname(), |
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"note": ip_pack["note"], |
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"ext_ip": ip_pack["ext_ip"], |
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"data": data} |
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submit_trace(ip_pack, ret) |
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def runner_entry(config): |
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if config.get("server_url", False): |
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URL = config.server_url + "/trace" |
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else: |
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URL = "http://127.0.0.1:9001" + "/trace" |
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start_time = time.time() |
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logger.warn("Traceroute runner starting") |
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ips = calc_ips(config) |
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ips_pack = pack_ips(ips, config, URL) |
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logger.debug('IP addresses: ' + str(ips)) |
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logger.debug(str(ips_pack)) |
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pool = Pool(config.procs, init_worker) |
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try: |
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logger.warn("Starting workers") |
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res = pool.map_async(run_trace, ips_pack, 1) |
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res.get(9999999) |
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except KeyboardInterrupt: |
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print("Caught KeyboardInterrupt, terminating workers") |
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pool.terminate() |
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finally: |
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pool.close() |
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pool.join() |
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end_time = time.time() |
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logger.warn("Traceroute runner done, Took: " + |
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str(int(end_time - start_time)) + " seconds") |
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eiginn /
traceroutedb
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It is generally discouraged to redefine built-ins as this makes code very hard to read.