117 lines
2.6 KiB
Perl
117 lines
2.6 KiB
Perl
#!/usr/bin/perl -w
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use IO::Socket::INET;
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use Sys::Hostname;
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use Data::Dumper;
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use Getopt::Long;
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use Pod::Usage;
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use strict;
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use constant VMPI_PROTOCOL_VERSION => 5;
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use constant VMPI_MESSAGE_BASE => 71;
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use constant VMPI_PING_REQUEST => VMPI_MESSAGE_BASE+2;
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use constant VMPI_PING_RESPONSE => VMPI_MESSAGE_BASE+3;
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use constant VMPI_FORCE_PASSWORD_CHANGE => VMPI_MESSAGE_BASE+11;
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use constant VMPI_PASSWORD_OVERRIDE => -111;
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use constant VMPI_SERVICE_PORT => 23397;
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use constant VMPI_LAST_SERVICE_PORT => VMPI_SERVICE_PORT + 15;
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my $list = undef;
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my $pass = "";
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my $help = 0;
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my $man = 0;
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GetOptions("file=s" => \$list,
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"pass=s" => \$pass,
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"help|?" => \$help,
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"man" => \$man) or pod2usage(1);
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pod2usage(2) if $help;
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pod2usage(-exitstatus=>0, -verbose=>2) if $man;
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my @machines = @ARGV;
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if ($list) {
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if (open(my $listfh, $list)) {
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while(my $line = <$listfh>) {
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chomp($line);
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next unless $line =~ /\S/;
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push @machines, $line;
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}
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}
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}
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if (!@machines) {
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warn "No machines specified\n";
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pod2usage(3);
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}
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my $message = BuildMessage(VMPI_PROTOCOL_VERSION, VMPI_FORCE_PASSWORD_CHANGE);
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$message .= pack("Z*", $pass);
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my $length = length($message);
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my $socket = CreateSocket();
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# send the message 3 times to make sure it gets it
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for (1..3) {
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for my $host (@machines) {
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SendMessage($socket, $host, $message);
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}
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sleep(1);
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}
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sub CreateSocket {
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return IO::Socket::INET->new(Proto=>'udp');
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}
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sub BuildMessage {
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my $ver = shift;
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my $type = shift;
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my $message = pack("CcCC", $ver, VMPI_PASSWORD_OVERRIDE, 0, $type);
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return $message;
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}
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sub SendMessage {
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my $socket = shift;
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my $host = shift;
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my $message = shift;
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my $ip = gethostbyname($host);
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if (!$ip) {
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warn "Can't resolve: $host\n";
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return;
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}
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for my $port (VMPI_SERVICE_PORT..VMPI_LAST_SERVICE_PORT) {
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my $ipaddr = sockaddr_in($port, $ip);
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defined(send($socket, $message, 0, $ipaddr)) || warn("SEND: $!\n");
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}
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}
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__END__
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=head1 NAME
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vmpi_chpass.pl - Sets the VMPI password on a set of machines
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=head1 SYNOPSIS
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vmpi_chpass.pl [-pass <password>] [-help|-?] [-man]
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-file <host file> | <host> ...
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Options:
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-file A file that contains the names of machines to use
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-pass Password to set
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-help|-? Display command line usage
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-man Display full documentation
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=head1 DESCRIPTION
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B<vmpi_chpass.pl> sets the password on the given list of machines. The
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machines can be given as separate arguments on the command line or as
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a list in a text file. If the password is not given, the password is
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removed from the machines, opening them up for general use.
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=cut
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