1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
#!/usr/bin/python
#
# tcprelay.py - TCP connection relay for usbmuxd
#
# Copyright (C) 2009 Hector Martin "marcan" <hector@marcansoft.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 or version 3.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import usbmux
import SocketServer
import select
from optparse import OptionParser
import sys
import threading
class SocketRelay(object):
def __init__(self, a, b, maxbuf=65535):
self.a = a
self.b = b
self.atob = ""
self.btoa = ""
self.maxbuf = maxbuf
def handle(self):
while True:
rlist = []
wlist = []
xlist = [self.a, self.b]
if self.atob:
wlist.append(self.b)
if self.btoa:
wlist.append(self.a)
if len(self.atob) < self.maxbuf:
rlist.append(self.a)
if len(self.btoa) < self.maxbuf:
rlist.append(self.b)
rlo, wlo, xlo = select.select(rlist, wlist, xlist)
if xlo:
return
if self.a in wlo:
n = self.a.send(self.btoa)
self.btoa = self.btoa[n:]
if self.b in wlo:
n = self.b.send(self.atob)
self.atob = self.atob[n:]
if self.a in rlo:
s = self.a.recv(self.maxbuf - len(self.atob))
if not s:
return
self.atob += s
if self.b in rlo:
s = self.b.recv(self.maxbuf - len(self.btoa))
if not s:
return
self.btoa += s
#print "Relay iter: %8d atob, %8d btoa, lists: %r %r %r"%(len(self.atob), len(self.btoa), rlo, wlo, xlo)
class TCPRelay(SocketServer.BaseRequestHandler):
def handle(self):
print "Incoming connection to %d"%self.server.server_address[1]
mux = usbmux.USBMux()
print "Waiting for devices..."
if not mux.devices:
mux.process(1.0)
if not mux.devices:
print "No device found"
self.request.close()
return
dev = mux.devices[0]
print "Connecting to device %s"%str(dev)
dsock = mux.connect(dev, self.server.rport)
lsock = self.request
print "Connection established, relaying data"
try:
fwd = SocketRelay(dsock, lsock, self.server.bufsize * 1024)
fwd.handle()
finally:
dsock.close()
lsock.close()
print "Connection closed"
class TCPServer(SocketServer.TCPServer):
allow_reuse_address = True
class ThreadedTCPServer(SocketServer.ThreadingMixIn, TCPServer):
pass
HOST = "localhost"
parser = OptionParser(usage="usage: %prog [OPTIONS] RemotePort[:LocalPort] [RemotePort[:LocalPort]]...")
parser.add_option("-t", "--threaded", dest='threaded', action='store_true', default=False, help="use threading to handle multiple connections at once")
parser.add_option("-b", "--bufsize", dest='bufsize', action='store', metavar='KILOBYTES', type='int', default=128, help="specify buffer size for socket forwarding")
options, args = parser.parse_args()
serverclass = TCPServer
if options.threaded:
serverclass = ThreadedTCPServer
if len(args) == 0:
parser.print_help()
sys.exit(1)
ports = []
for arg in args:
try:
if ':' in arg:
rport, lport = arg.split(":")
rport = int(rport)
lport = int(lport)
ports.append((rport, lport))
else:
ports.append((int(arg), int(arg)))
except:
parser.print_help()
sys.exit(1)
servers=[]
for rport, lport in ports:
print "Forwarding local port %d to remote port %d"%(lport, rport)
server = serverclass((HOST, lport), TCPRelay)
server.rport = rport
server.bufsize = options.bufsize
servers.append(server)
alive = True
while alive:
try:
rl, wl, xl = select.select(servers, [], [])
for server in rl:
server.handle_request()
except:
alive = False
|
