build/android/adb_reverse_forwarder.py

   1 #!/usr/bin/env python
   2 #
   3 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
   4 # Use of this source code is governed by a BSD-style license that can be
   5 # found in the LICENSE file.
   6
   7 """Command line tool for forwarding ports from a device to the host.
   8
   9 Allows an Android device to connect to services running on the host machine,
  10 i.e., "adb forward" in reverse. Requires |host_forwarder| and |device_forwarder|
  11 to be built.
  12 """
  13
  14 import logging
  15 import optparse
  16 import sys
  17 import time
  18
  19 from pylib import constants
  20 from pylib import forwarder
  21 from pylib.device import adb_wrapper
  22 from pylib.device import device_utils
  23 from pylib.utils import run_tests_helper
  24
  25
  26 def main(argv):
  27   parser = optparse.OptionParser(usage='Usage: %prog [options] device_port '
  28                                  'host_port [device_port_2 host_port_2] ...',
  29                                  description=__doc__)
  30   parser.add_option('-v',
  31                     '--verbose',
  32                     dest='verbose_count',
  33                     default=0,
  34                     action='count',
  35                     help='Verbose level (multiple times for more)')
  36   parser.add_option('--device',
  37                     help='Serial number of device we should use.')
  38   parser.add_option('--debug', action='store_const', const='Debug',
  39                     dest='build_type', default='Release',
  40                     help='Use Debug build of host tools instead of Release.')
  41
  42   options, args = parser.parse_args(argv)
  43   run_tests_helper.SetLogLevel(options.verbose_count)
  44
  45   if len(args) < 2 or not len(args) % 2:
  46     parser.error('Need even number of port pairs')
  47     sys.exit(1)
  48
  49   try:
  50     port_pairs = map(int, args[1:])
  51     port_pairs = zip(port_pairs[::2], port_pairs[1::2])
  52   except ValueError:
  53     parser.error('Bad port number')
  54     sys.exit(1)
  55
  56   devices = device_utils.DeviceUtils.HealthyDevices()
  57
  58   if options.device:
  59     if options.device not in [str(d) for d in devices]:
  60       raise Exception('Error: %s not in attached devices %s' % (options.device,
  61                       ','.join(devices)))
  62     devices = [options.device]
  63   else:
  64     if not devices:
  65       raise Exception('Error: no connected devices')
  66     logging.info('No device specified. Defaulting to %s', devices[0])
  67
  68   device = devices[0]
  69   constants.SetBuildType(options.build_type)
  70   try:
  71     forwarder.Forwarder.Map(port_pairs, device)
  72     while True:
  73       time.sleep(60)
  74   except KeyboardInterrupt:
  75     sys.exit(0)
  76   finally:
  77     forwarder.Forwarder.UnmapAllDevicePorts(device)
  78
  79 if __name__ == '__main__':
  80   main(sys.argv)