You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
259 lines
6.1 KiB
Python
259 lines
6.1 KiB
Python
#!/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 http)
|
|
\t --port: set port for http (default 8080)
|
|
\t-s | --server: IP address of tftp server
|
|
\t-w | --write: initiate loading of redboot (default no modification to flash)
|
|
\t-q | --quiet: don't display unnecessary information
|
|
\t-v | --verbose: display progress 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 = 1
|
|
no_dump = 0
|
|
dumplen = 0x10000
|
|
write_image = 0
|
|
flashsize=4*1024*1024
|
|
#device="br0"
|
|
device="ixp0"
|
|
|
|
####################
|
|
|
|
def start_server():
|
|
httpd = SocketServer.TCPServer((server,PORT),SimpleHTTPServer.SimpleHTTPRequestHandler)
|
|
thread.start_new_thread(httpd.serve_forever,())
|
|
|
|
####################
|
|
|
|
def get_flash_size():
|
|
global flashsize
|
|
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)
|
|
else:
|
|
print "Can't find mtd0!"
|
|
else:
|
|
print "Can't access /proc/mtd!"
|
|
|
|
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:
|
|
line=buf[i+9:]
|
|
i=line.find('\n')
|
|
platform=line[:i].split()[-1]
|
|
|
|
tn.write("ifconfig -v %s\n" % device);
|
|
buf = tn.read_until("Returned 0")
|
|
|
|
i = buf.find("mac = 0")
|
|
if i > 0:
|
|
i += 6
|
|
else:
|
|
print "No MAC address found! (use -f option)"
|
|
sys.exit(1)
|
|
dumpfile = "%s-%s.bin" % (platform, buf[i:i+17].replace(':',''))
|
|
else:
|
|
tn.write("\n")
|
|
|
|
print "Dumping flash contents (%dMB) to %s" % (flashsize/1048576, dumpfile)
|
|
f = open(dumpfile, "wb")
|
|
|
|
t=flashsize/dumplen
|
|
for addr in range(t):
|
|
if verbose:
|
|
sys.stdout.write('\r%d%%'%(100*addr/t))
|
|
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()
|
|
if verbose:
|
|
print ""
|
|
|
|
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:qp:P:s:vVw", \
|
|
["help", "dump", "file=", "user=", "pass=", "port=", "proto=",
|
|
"quiet=", "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)
|
|
elif o in ("-V", "--version"):
|
|
print "%s: 0.8" % sys.argv[0]
|
|
sys.exit(1)
|
|
elif o in ("-d", "--no-dump"):
|
|
no_dump = 1
|
|
elif o in ("-f", "--file"):
|
|
dumpfile = a
|
|
elif o in ("-s", "--server"):
|
|
server = a
|
|
elif o in ("-u", "--user"):
|
|
user = a
|
|
elif o in ("-p", "--pass"):
|
|
password = a
|
|
elif o in ("-P", "--proto"):
|
|
proto = a
|
|
elif o == "--port":
|
|
PORT = int(a)
|
|
elif o in ("-w", "--write"):
|
|
write_image = 1
|
|
elif o in ("-q", "--quiet"):
|
|
verbose = 0
|
|
elif 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)
|
|
|
|
if write_image:
|
|
if not os.access(imagefile, os.R_OK):
|
|
print "File access error: %s" % (imagefile)
|
|
sys.exit(3)
|
|
|
|
splitpath = os.path.split(imagefile)
|
|
# make sure we're in the directory where the image is located
|
|
if splitpath[0]:
|
|
os.chdir(splitpath[0])
|
|
|
|
# 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, splitpath[1])
|
|
else:
|
|
cmd = "load -u %s://%s/%s -r 0\n" % (proto, server, splitpath[1])
|
|
|
|
if proto == "http":
|
|
start_server()
|
|
|
|
if verbose:
|
|
print "Unlocking flash..."
|
|
tn.write("unlock 0 0x%x\n" % flashsize)
|
|
buf = tn.read_until("Returned 0")
|
|
|
|
if verbose:
|
|
print "Writing new image..."
|
|
print cmd,
|
|
tn.write(cmd)
|
|
buf = tn.read_until("Returned 0",10)
|
|
|
|
tn.write("exit\n")
|
|
tn.close()
|