1#!/usr/bin/env perl
2#
3#   D-Link DSL-G6x4T flash utility
4#
5#   Copyright (C) 2005 Felix Fietkau <mailto@nbd.name>
6#   based on fbox recovery util by Enrik Berkhan
7#
8#   This program is free software; you can redistribute it and/or modify
9#   it under the terms of the GNU General Public License as published by
10#   the Free Software Foundation; either version 2 of the License, or
11#   (at your option) any later version.
12#
13#   This program is distributed in the hope that it will be useful,
14#   but WITHOUT ANY WARRANTY; without even the implied warranty of
15#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16#   GNU General Public License for more details.
17#
18#   You should have received a copy of the GNU General Public License
19#   along with this program; if not, write to the Free Software
20#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
21#
22
23use IO::Socket::INET;
24use IO::Select;
25use Socket;
26use strict;
27use warnings;
28
29sub usage() {
30	print STDERR "Usage: $0 <ip> [firmware.bin]\n\n";
31	exit 0;
32}
33
34my $ip = shift @ARGV;
35$ip and $ip =~ /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/ or usage();
36
37my $setip = unpack("N", inet_aton($ip));
38$setip > 0 or usage();
39
40my @packets;
41foreach my $ver ([18, 1], [22, 2]) {
42	push @packets, pack("vCCVNV", 0, @$ver, 1, $setip, 0);
43}
44print STDERR "Looking for device: ";
45my $scanning;
46my $box;
47
48my $probe = IO::Socket::INET->new(Proto => 'udp',
49                                  Broadcast => 1,
50                                  LocalAddr => $ip,
51                                  LocalPort => 5035) or die "socket: $!";
52my $sel = IO::Select->new($probe);
53my $packet = pack("vCCVNV", 0, 18, 1, 1, 0, 0);
54my $broadcast = sockaddr_in(5035, INADDR_BROADCAST);
55
56$probe->send($packet, 0, $broadcast);
57
58
59scan_again:
60print "Looking for Fritz!Box ";
61my @boxes = ();
62my $peer;
63$scanning = 100;
64print "o";
65while($scanning) {
66  my $reply;
67  my @ready;
68
69  if (@ready = $sel->can_read(0.2)) {
70    $peer = $probe->recv($reply, 16);
71    next if (length($reply) < 16);
72    my ($port, $addr) = sockaddr_in($peer);
73    my ($major, $minor1, $minor2, $code, $addr2) = unpack("vCCVV", $reply);
74    $addr2 = pack("N", $addr2);
75    if ($code == 2) {
76      print "O";
77      push @boxes, [$major, $minor1, $minor2, $addr, $addr2];
78      $scanning = 2 if ($scanning > 2);
79    }
80  } else {
81    $scanning--;
82    if (scalar @boxes == 0) {
83      $probe->send($packet, 0, $broadcast);
84      print "o";
85    } else {
86      print ".";
87    }
88  }
89}
90
91if (scalar @boxes == 0) {
92  print " none found, giving up.\n";
93  exit 1;
94} else {
95  print " found!\n";
96}
97
98{
99  package ADAM2FTP;
100  use base qw(Net::FTP);
101  # ADAM2 requires upper case commands, some brain dead firewall doesn't ;-)
102  sub _USER { shift->command("USER",@_)->response() }
103  sub _PASV { shift->command("P\@SW")->response() == Net::FTP::CMD_OK }
104  sub _GETENV {
105    my $ftp = shift;
106    my ($ok, $name, $value);
107
108    $ftp->command("GETENV",@_);
109    while(length($ok = $ftp->response()) < 1) {
110      my $line = $ftp->getline();
111      unless (defined($value)) {
112        chomp($line);
113        ($name, $value) = split(/\s+/, $line, 2);
114      }
115    }
116    $ftp->debug_print(0, "getenv: $value\n")
117      if $ftp->debug();
118    return $value;
119  }
120  sub getenv {
121    my $ftp = shift;
122    my $name = shift;
123    return $ftp->_GETENV($name);
124  }
125  sub _REBOOT { shift->command("REBOOT")->response() == Net::FTP::CMD_OK }
126  sub reboot {
127    my $ftp = shift;
128    $ftp->_REBOOT;
129    $ftp->close;
130  }
131  sub check {
132    my $ftp = shift;
133
134    delete ${*$ftp}{'net_ftp_port'};
135    delete ${*$ftp}{'net_ftp_pasv'};
136
137    my $data = $ftp->_data_cmd('CHECK' ,@_) or return undef;
138    my $sum;
139    if (${${*$ftp}{'net_cmd_resp'}}[0] =~ /^Flash check 0x([0-9A-F]{8})/) {
140      $sum = hex($1);
141    }
142    $data->_close();
143    return $sum;
144  }
145}
146
147# passive mode geht mit Net::FTP nicht, connected zu spaet fuer ADAM2!
148my $ftp = ADAM2FTP->new($ip, Passive => 0, Debug => 0, Timeout => 600)
149  or die "can't FTP ADAM2";
150$ftp->login("adam2", "adam2") or die "can't login adam2";
151$ftp->binary();
152my $pid   = $ftp->getenv('ProductID');
153my $hwrev = $ftp->getenv('HWRevision');
154my $fwrev = $ftp->getenv('firmware_info');
155my $ulrev = $ftp->getenv('urlader-version');
156
157print "Product ID: $pid\n";
158print "Hardware Revision: $hwrev\n";
159print "Urlader  Revision: $ulrev\n";
160print "Firmware Revision: $fwrev\n";
161
162$ftp->hash(\*STDOUT, 64 * 1024);
163
164my $file = shift @ARGV;
165$file || exit 0;
166
167open FILE, "<$file" or die "can't open firmware file\n";
168
169my $mtd0 = $ftp->getenv("mtd0");
170my $mtd1 = $ftp->getenv("mtd1");
171my ($ksize, $fssize);
172
173$mtd1 =~ /^(0x\w+),(0x\w+)$/ and $ksize = hex($2) - hex($1);
174$mtd0 =~ /^(0x\w+),(0x\w+)$/ and $fssize = hex($2) - hex($1);
175$ksize and $fssize or die 'cannot read partition offsets';
176printf STDERR "Available flash space: 0x%08x (0x%08x + 0x%08x)\n", $ksize + $fssize, $ksize, $fssize;
177
178$ftp->command("MEDIA FLSH")->response();
179$ftp->binary();
180print STDERR "Writing to mtd1...\n";
181
182my $dc = $ftp->stor("fs mtd1");
183$dc or die "can't open data connection\n";
184my $rbytes = 1;
185
186while (($ksize > 0) and ($rbytes > 0)) {
187	my $buffer;
188	my $len = ($ksize > 1024 ? 1024 : $ksize);
189	$rbytes = read FILE, $buffer, $len;
190	$rbytes and $ksize -= $dc->write($buffer, $rbytes, 600);
191}
192
193$dc->close();
194$rbytes or die "no more data left to write\n";
195
196print STDERR "Writing to mtd0...\n";
197
198$dc = $ftp->stor("fs mtd0");
199$dc or die "can't open data connection\n";
200
201while (($fssize > 0) and ($rbytes > 0)) {
202	my $buffer;
203	my $len = ($fssize > 1024 ? 1024 : $fssize);
204	$rbytes = read FILE, $buffer, $len;
205	$rbytes and $fssize -= $dc->write($buffer, $rbytes, 600);
206}
207
208$dc->close();
209$ftp->reboot();
210