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|
#!/bin/env python
# autoscan - automatic fingerprint of visited networks
# XXX IN PROGRESS 20130721 laurent
# 2013, Laurent Ghigonis <laurent@gouloum.fr>
# Usage: autoscan.py [interfaces]
# by default, monitor all network interfaces
# Should work on all Linux versions
# Each time network connectivity become available after a cut-off,
# run some tests and store results in
# YYYYMMDD_hhmmss_interface/testname/output"
# * ifconfig
# * if WIFI, iwconfig
# * /etc/resolv.conf
# * 15s pcap
# * route -n
# * traceroute
# * local net IP scan
# * public IP (curl ifconfig.me)
# * ping 8.8.8.8
# TODO
# rename log directory to YYYYMMDD_hhmmss_interface_[pubip/localip]
import sys
import os
import time
import subprocess
import traceback
import re
import argparse
class Autoscan_iface(object):
PUBIP = "8.8.8.8"
def __init__(self, iface, logpath=".", verbose=False):
self.iface = iface
self.logpath = logpath
self.verbose = verbose
self.date = None # set by _do_tests()
def monitor(self):
self._do_tests()
while True:
self._wait_down()
self._wait_up()
self._do_tests()
def run_now(self):
self._do_tests()
def _wait_up(self):
while True:
out, err, code = self._exec(
['ifconfig', self.iface])
up = re.search(r'UP', out)
ip4 = re.search(r'inet (\S+)', out)
ip6 = re.search(r'inet6 (\S+)', out)
if up and (ip4 or ip6):
break
time.sleep(1)
def _wait_down(self):
while True:
out, err, code = self._exec(
['ifconfig', self.iface])
up = re.search(r'UP', out)
if not up:
break
# XXX also consider sleep as interface down
time.sleep(1)
def _do_tests(self):
self.date = time.strftime("%Y%m%d_%H%M%S", time.gmtime())
self._do_tests_run(self._test_ifconfig)
self._do_tests_run(self._test_iwconfig)
self._do_tests_run(self._test_route)
#self._do_tests_run(self._test_resolv)
#self._do_tests_run(self._test_pubip_get)
self._do_tests_run(self._test_pubip_ping)
#self._do_tests_run(self._test_pubip_traceroute)
#self._do_tests_run(self._test_pcap)
#self._do_tests_run(self._test_scan)
# XXX rename dir
def _do_tests_run(self, func):
try:
func()
except Exception, e:
print("test %s failed: %s" % (func, e))
traceback.print_exc()
def _test_ifconfig(self):
out, err, code = self._exec(
['ifconfig', self.iface])
self._store("ifconfig/out", out)
up = re.search(r'UP', out)
if up: self._store("ifconfig/up", "")
ip4 = re.search(r'inet (\S+)', out)
if ip4: self._store("ifconfig/ip4", ip4.group(1))
ip6 = re.search(r'inet6 (\S+)', out)
if ip6: self._store("ifconfig/ip6", ip6.group(1))
def _test_iwconfig(self):
out, err, code = self._exec(
['iwconfig', self.iface])
if len(out) == 0:
return # not a WIFI interface
self._store("iwconfig/out", out)
essid = re.search(r'ESSID:(\S+)', out)
if essid: self._store("iwconfig/essid", essid.group(1))
ap = re.search(r'Access Point: (\S+)', out)
if ap: self._store("iwconfig/ap", ap.group(1))
def _test_route(self):
out, err, code = self._exec(
['route', '-n'])
self._store("route/out", out)
gw = re.findall(r'(\S+)', out.split('\n')[2])[1]
if gw: self._store("route/gw", gw)
def _test_pubip_ping(self):
out, err, code = self._exec(
['ping', '-W', '3', '-c', '1', self.PUBIP])
self._store("pubip_ping/code", code)
self._store("pubip_ping/out", out)
def _exec(self, cmd):
p = subprocess.Popen(cmd,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = p.communicate()
return out, err, p.returncode
def _store(self, suffix, txt):
name = "%s/%s_%s/%s" % (self.logpath,
self.date, self.iface, suffix)
d = os.path.dirname(name)
if not os.path.isdir(d):
os.makedirs(d)
if self.verbose:
print("%s = %s" % (name, txt))
f = open(name, "w+")
f.write(str(txt))
f.close()
# XXX all ifaces by default, use netifaces
parser = argparse.ArgumentParser()
parser.add_argument("interfaces", nargs='+',
help="Interfaces to use")
parser.add_argument("-f", "--foreground", action="store_true",
help="Run in foreground, do not daemonize")
parser.add_argument("-o", "--outdir", action="store", default=".",
help="increase output verbosity")
parser.add_argument("-r", "--runnow", action="store_true",
help="Run tests/scans now and exit")
parser.add_argument("-v", "--verbose", action="store_true",
help="increase output verbosity")
args = parser.parse_args()
for iface in args.interfaces:
pid = os.fork()
if pid == 0:
autoscan = Autoscan_iface(iface, args.outdir, args.verbose)
if args.runnow:
autoscan.run_now()
else:
autoscan.monitor()
# UNREACHED
if args.foreground:
while True:
try: os.wait() # XXX wait all pids ?
except: break
|
