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 optparse
  15 import sys
  16 import time
  17
  18 from pylib import android_commands
  19 from pylib import constants, forwarder
  20 from pylib.device import device_utils
  21 from pylib.utils import run_tests_helper
  22
  23
  24 def main(argv):
  25   parser = optparse.OptionParser(usage='Usage: %prog [options] device_port '
  26                                  'host_port [device_port_2 host_port_2] ...',
  27                                  description=__doc__)
  28   parser.add_option('-v',
  29                     '--verbose',
  30                     dest='verbose_count',
  31                     default=0,
  32                     action='count',
  33                     help='Verbose level (multiple times for more)')
  34   parser.add_option('--device',
  35                     help='Serial number of device we should use.')
  36   parser.add_option('--debug', action='store_const', const='Debug',
  37                     dest='build_type', default='Release',
  38                     help='Use Debug build of host tools instead of Release.')
  39
  40   options, args = parser.parse_args(argv)
  41   run_tests_helper.SetLogLevel(options.verbose_count)
  42
  43   if len(args) < 2 or not len(args) % 2:
  44     parser.error('Need even number of port pairs')
  45     sys.exit(1)
  46
  47   try:
  48     port_pairs = map(int, args[1:])
  49     port_pairs = zip(port_pairs[::2], port_pairs[1::2])
  50   except ValueError:
  51     parser.error('Bad port number')
  52     sys.exit(1)
  53
  54   devices = android_commands.GetAttachedDevices()
  55
  56   if options.device:
  57     if options.device not in devices:
  58       raise Exception('Error: %s not in attached devices %s' % (options.device,
  59                       ','.join(devices)))
  60     devices = [options.device]
  61   else:
  62     if not devices:
  63       raise Exception('Error: no connected devices')
  64     print "No device specified. Defaulting to " + devices[0]
  65
  66   device = device_utils.DeviceUtils(devices[0])
  67   constants.SetBuildType(options.build_type)
  68   try:
  69     forwarder.Forwarder.Map(port_pairs, device)
  70     while True:
  71       time.sleep(60)
  72   except KeyboardInterrupt:
  73     sys.exit(0)
  74   finally:
  75     forwarder.Forwarder.UnmapAllDevicePorts(device)
  76
  77 if __name__ == '__main__':
  78   main(sys.argv)