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55 lines
1.0 KiB
Perl
Executable File
55 lines
1.0 KiB
Perl
Executable File
#!/usr/bin/env perl
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# IBM(c) 2010 EPL license http://www.eclipse.org/legal/epl-v10.html
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#
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#####################################################
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#
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# This script will calculate the IPv6 link local address
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# from the mac address
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# the mac address can be something like
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# 00215ea68cd9 or 00:21:5e:a6:8c:d9
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# example mac2linklocal 00215ea68cd9
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#
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#####################################################
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BEGIN
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{
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$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
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}
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use lib "$::XCATROOT/lib/perl";
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use strict;
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use warnings;
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use Getopt::Long;
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if (
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!GetOptions("h|help" => \$::HELP,
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"m=s" => \$::MACADDR,)
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)
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{
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&usage;
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exit 1;
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}
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if ($::HELP)
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{
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&usage;
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exit 0;
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}
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require xCAT::NetworkUtils;
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if ($::MACADDR)
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{
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my $linklocal = xCAT::NetworkUtils->linklocaladdr($::MACADDR);
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print "$linklocal";
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}
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sub usage
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{
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print "Usage: mac2linklocal -m <mac_address>\n\n";
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print "Determines the IPv6 link local address that is appropriate for a NIC, based on its MAC.\n\n";
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print "Author: Li, Guang Cheng\n";
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return;
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}
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