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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
#!/usr/bin/env python
#
# Copyright 2008 (C) Jose Vasconcellos <jvasco@verizon.net>
#
# A script that can communicate with jungo-based routers
# (such as MI424-WR, USR8200 and WRV54G to backup the installed
# firmware and replace the boot loader.
#
# Tested with Python 2.5 on Linux and Windows
#
"""Usage: %s [options] <IP_address> [redboot.bin]
Valid options:
\t-h | --help: usage statement
\t-d | --no-dump: don't create a flash dump
\t-f | --file: use <filename> to store dump contents
\t-u | --user: provide username (default admin)
\t-p | --pass: provide password (default password1)
\t-P | --proto: set transfer protocol (default tftp)
\t-s | --server: IP address of tftp server
\t-w | --write: initiate loading of redboot (default no modification to flash)
\t-v | --verbose: display additional information
\t-V | --version: display version information
"""
import os
import sys
import getopt
import getpass
import telnetlib
import string
import binascii
import socket
import thread
import SocketServer
import SimpleHTTPServer
server = ""
HOST = "192.168.1.1"
PORT = 8080
user = "admin"
#password = getpass.getpass()
password = "password1"
proto = "http"
imagefile = "redboot.bin"
dumpfile = ""
verbose = 0
no_dump = 0
dumplen = 0x10000
write_image = 0
flashsize=8*1024*1024
####################
def start_server():
httpd = SocketServer.TCPServer((server,PORT),SimpleHTTPServer.SimpleHTTPRequestHandler)
thread.start_new_thread(httpd.serve_forever,())
####################
def get_flash_size():
tn.write("cat /proc/mtd\n")
# wait for prompt
buf = tn.read_until("Returned 0", 3)
if buf:
i = buf.find('mtd0:')
if i > 0:
flashsize = int(buf[i+6:].split()[0],16)
def image_dump(tn, dumpfile):
if not dumpfile:
tn.write("ver\n");
buf = tn.read_until("Returned 0")
i = buf.find("Platform:")
if i < 0:
platform="jungo"
else:
platform=buf[i+9:].split()[0]
tn.write("ifconfig br0\n");
buf = tn.read_until("Returned 0")
i = buf.find("MAC=")
if i < 0:
print "No MAC address found! (use -f option)"
sys.exit(1)
dumpfile = "%s-%s.bin" % (platform, buf[i+4:i+21].replace(':',''))
else:
tn.write("\n")
print "Dumping flash contents (%dMB) to %s\n" % (flashsize/1048576, dumpfile)
f = open(dumpfile, "wb")
for addr in range(flashsize/dumplen):
if verbose:
sys.stdout.write('.')
sys.stdout.flush()
tn.write("flash_dump -r 0x%x -l %d -4\n" % (addr*dumplen, dumplen))
tn.read_until("\n")
count = addr*dumplen
while 1:
buf = tn.read_until("\n")
if buf.strip() == "Returned 0":
break
s = buf.split()
if s and s[0][-1] == ':':
a=int(s[0][:-1],16)
if a != count:
print "Format error: %x != %x"%(a,count)
sys.exit(2)
count += 16
f.write(binascii.a2b_hex(string.join(s[1:],'')))
tn.read_until(">",1)
f.close()
def telnet_option(sock,cmd,option):
#print "Option: %d %d" % (ord(cmd), ord(option))
if cmd == telnetlib.DO:
c=telnetlib.WILL
elif cmd == telnetlib.WILL:
c=telnetlib.DO
sock.sendall(telnetlib.IAC + c + option)
def telnet_timeout():
print "Fatal error: telnet timeout!"
sys.exit(1)
def usage():
print __doc__ % os.path.basename(sys.argv[0])
####################
try:
opts, args = getopt.getopt(sys.argv[1:], "hdf:u:p:P:s:vVw", \
["help", "dump", "file=", "user=", "pass=", "proto=","server=", "verbose", "version", "write"])
except getopt.GetoptError:
# print help information and exit:
usage()
sys.exit(1)
for o, a in opts:
if o in ("-h", "--help"):
usage()
sys.exit(1)
if o in ("-V", "--version"):
print "%s: 0.6" % sys.argv[0]
sys.exit(1)
if o in ("-d", "--no-dump"):
no_dump = 1
if o in ("-f", "--file"):
dumpfile = a
if o in ("-s", "--server"):
server = a
if o in ("-u", "--user"):
user = a
if o in ("-p", "--pass"):
password = a
if o in ("-P", "--proto"):
proto = a
if o in ("-w", "--write"):
write_image = 1
if o in ("-v", "--verbose"):
verbose = 1
# make sure we have enough arguments
if len(args) > 0:
HOST = args[0]
if len(args) == 2:
imagefile = args[1]
####################
# create a telnet session to the router
try:
tn = telnetlib.Telnet(HOST)
except socket.error, msg:
print "Unable to establish telnet session to %s: %s" % (HOST, msg)
sys.exit(1)
tn.set_option_negotiation_callback(telnet_option)
buf = tn.read_until("Username: ", 3)
if not buf:
telnet_timeout()
tn.write(user+"\n")
if password:
buf = tn.read_until("Password: ", 3)
if not buf:
telnet_timeout()
tn.write(password+"\n")
# wait for prompt
buf = tn.read_until("> ", 3)
if not buf:
telnet_timeout()
get_flash_size()
if not no_dump:
image_dump(tn, dumpfile)
# write image file image
if not server:
server = tn.get_socket().getsockname()[0]
if proto == "http":
cmd = "load -u %s://%s:%d/%s -r 0\n" % (proto, server, PORT, imagefile)
else:
cmd = "load -u %s://%s/%s -r 0\n" % (proto, server, imagefile)
print cmd
if write_image:
if proto == "http":
start_server()
tn.write("unlock 0 0x%x\n" % flashsize)
buf = tn.read_until("Returned 0")
tn.write(cmd)
buf = tn.read_until("Returned 0")
tn.write("exit\n")
tn.close()
|
