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83 lines
2.1 KiB
Perl
83 lines
2.1 KiB
Perl
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#!/usr/bin/perl
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use strict;
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use File::Copy;
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use Getopt::Long;
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use File::Basename;
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my $cmd;
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my $oui;
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my $iab;
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GetOptions ('iab=s' => \$iab,
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'oui=s' => \$oui,
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) or die 'bad options';
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my $address = shift;
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my $infile = shift;
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my $outfile = shift;
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if (!defined($address) || !defined($infile)) {
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print "Usage: $0 [--iab=a8c | --oui=abcdef ] address infile [outfile]\n";
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print " iab is 12-bit and address is 28-bit e.g. --iab=a8c 1234567\n";
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print " oui is 24-bit and address is 40-bit e.g. --oui=abcdef 123456789a\n";
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print "\n";
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print " if outfile is not specified, for infile foo.bin outfile will be\n";
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print " foo-[macaddress].bin e.g:\n";
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print " for --iab=a8c 1234567 foo.bin -> foo-0050c2a8c1234567.bin\n";
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print " for --oui=abcdef 123456789a foo.bin -> foo-abcdef123456789a.bin\n";
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exit;
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}
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my $mac_h;
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my $mac_l;
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if(defined($iab)) {
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$iab = hex($iab);
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$address = hex($address);
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$mac_h = 0x0050C200 | ($iab >> 4);
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$mac_l = (($iab & 0xf) << 28) | $address;
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} else {
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$address =~ /(.*?)(.{0,8})$/;
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my ($addr_h, $addr_l) = ($1, $2);
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if(!$addr_h) { $addr_h = 0 };
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$oui = hex($oui);
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$addr_l = hex($addr_l);
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$addr_h = hex($addr_h);
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$mac_h = ($oui << 8) | $addr_h;
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$mac_l = $addr_l;
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}
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printf("mach %x macl %x\n", $mac_h, $mac_l);
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my @words;
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for(my $i=0; $i<4; $i++) {
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push @words, ($mac_l >> ($i * 8)) & 0xff;
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}
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for(my $i=0; $i<4; $i++) {
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push @words, ($mac_h >> ($i * 8)) & 0xff;
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}
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reverse @words;
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#foreach my $byte (@words) {
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# printf("%02X",$byte);
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#}
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#print "\n";
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if(!defined($outfile))
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{
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my $basename = basename($infile,(".bin"));
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$outfile = sprintf("-%08x%08x.bin",$mac_h, $mac_l);
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$outfile = $basename . $outfile;
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print "outfile $outfile\n";
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}
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copy($infile, $outfile) or die("Couldn't copy $infile to $outfile");
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$cmd = sprintf("echo -n -e '\\x%02X\\x%02X\\x%02X\\x%02X\\x%02X\\x%02X\\x%02X\\x%02X' | dd of=$outfile bs=1 seek=122872 conv=notrunc",
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$words[7],$words[6],$words[5],$words[4],
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$words[3],$words[2],$words[1],$words[0]);
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print "$cmd\n";
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system("bash -c \"$cmd\"");
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