version 1.1, 2005/11/16 03:28:42 |
version 1.6, 2005/11/17 00:40:06 |
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#!/usr/bin/perl
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#!/usr/bin/perl
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# $RedRiver$
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# $RedRiver: update_trango.pl,v 1.5 2005/11/16 21:39:51 andrew Exp $
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########################################################################
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########################################################################
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# update_trango.pl *** Updates trango foxes with a new firmware
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# update_trango.pl *** Updates trango foxes with a new firmware
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#
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#
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use warnings;
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use warnings;
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use Net::Telnet;
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use Net::Telnet;
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use Net::TFTP;
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use Fcntl ':flock'; # import LOCK_* constants
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#use YAML;
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my $config_file = shift || 'update_trango.conf';
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my $conf = read_conf($config_file);
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my $max_tries = 1;
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my $log_file = GetLogName('UT');
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use constant LOG_SAVE => 1;
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my $MYLOG; # file handle for logging so we don't have to close and open it all the time
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END {
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if ($MYLOG) {
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mylog("Closing log ($log_file)");
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close $MYLOG;
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}
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}
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foreach my $fox (@{ $conf->{'ips'} }) {
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mylog("Updating: $fox", LOG_SAVE);
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## Connect and login.
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my $host = new Net::Telnet (Timeout => 5,
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Prompt => '/#> *$/');
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mylog("Connecting to $fox");
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unless ( $host->open( Host => $fox, Errmode => 'return') ) {
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mylog("Couldn't connect to $fox. Connection timed out.", LOG_SAVE);
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next;
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}
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$host->dump_log('dump.log');
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## Login to remote host.
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unless ($host->waitfor(
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-match => '/password: ?$/i',
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-errmode => "return",
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) ) {
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mylog("problem connecting to host ($fox): " . $host->lastline, LOG_SAVE);
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next;
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}
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my $login_banner = $host->lastline;
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my ($type, $version) = $login_banner =~
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/Welcome to Trango Broadband Wireless (\w+)-(.+)$/i;
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if ($type ne $conf->{'type'}) {
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mylog("Wrong type of unit ('$type' should be '$conf->{'type'}')", LOG_SAVE);
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$host->close;
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next;
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}
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if ($version eq $conf->{'ver'}) {
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mylog("Already up to date with firmware version '$version'", LOG_SAVE);
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$host->close;
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next;
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}
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mylog("Logging in");
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$host->print($conf->{'password'});
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unless ($host->waitfor(
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-match => $host->prompt,
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-errmode => "return",
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) ) {
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mylog("login ($fox) failed: " . $host->lastline);
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next;
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}
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mylog("Sending commands");
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## Send commands
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if ( upload($host, $fox, $conf->{'file_name'}) ) {
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mylog("Rebooting");
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$host->print("reboot\n");
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$host->getline;
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} else {
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mylog("Exiting");
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$host->print("exit\n");
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$host->getline;
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}
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$host->close;
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mylog("", LOG_SAVE);
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}
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sub upload
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{
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my $host = shift;
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my $fox = shift;
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my $file = shift;
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mylog("Getting current version");
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my $ver = get_ver($host);
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if (
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$ver->{'Firmware Version'} eq $conf->{'ver'} &&
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$ver->{'Firmware Checksum'} eq $conf->{'cksum'}
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) {
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mylog("Already updated!", LOG_SAVE);
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return 1;
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}
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my $try = 0;
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while (1) {
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if ($try >= $max_tries) {
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mylog("Couldn't update in $max_tries tries!");
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return undef;
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}
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$try++;
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#sysinfo($host);
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mylog("Enabling TFTPd");
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enable_tftpd($host) || die "Couldn't enable tftpd";
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mylog("Uploading file ($file)");
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# use tftp to push the file up
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my $tftp = Net::TFTP->new($fox, Mode => 'octet');
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$tftp->put($file, $file)
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or die "Error uploading: " . $tftp->error;
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# waitfor some sort of output
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# make sure it says 'Success.' otherwise error
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#print "LAST: " . $host->lastline;
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#my @lines = $host->getlines;
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#print Dump \@lines;
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mylog("Checking upload ($conf->{'file_cksum'})");
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my $results = check_tftpd($host);
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# check the 'File Length' against ???
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if ( $results->{'File Checksum'} ne $conf->{'file_cksum'}) {
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mylog("File checksum does not match config file!", LOG_SAVE);
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next;
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}
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mylog("File checksum ($results->{'File Checksum'}) " .
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"matches ($conf->{'file_cksum'})");
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if ($results->{'File Length'} !~ /^$conf->{'file_size'} bytes/) {
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mylog("File length does not match config file!", LOG_SAVE);
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next;
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}
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mylog("File length ($results->{'File Length'}) " .
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"matches ($conf->{'file_size'})");
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if ( uc($results->{'File Name'}) ne uc($conf->{'file_name'}) ) {
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mylog("File name does not match config file!", LOG_SAVE);
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next;
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}
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mylog("File name ($results->{'File Name'}) " .
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"matches ($conf->{'file_name'})");
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mylog("Updating flash (new checksum '$conf->{'cksum'}')");
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$results = updateflash(
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$host, $ver->{'Firmware Checksum'}, $conf->{'cksum'}
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) or die "Couldn't update flash: " . $host->lastline;
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unless (
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defined $results->{'Checksum'} &&
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$results->{'Checksum'} eq $conf->{'cksum'}
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) {
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mylog("Saved checksum does not match config file!", LOG_SAVE);
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next;
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}
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mylog("Uploaded checksum ($results->{'Checksum'}) " .
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"matches ($conf->{'cksum'})");
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mylog("Successfully updated!", LOG_SAVE);
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return 1;
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}
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}
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sub get_ver
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{
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my $host = shift;
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return cmd($host, 'ver');
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}
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sub enable_tftpd
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{
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my $host = shift;
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my $vals = cmd($host, 'tftpd on', 'Success.');
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if ($vals->{'Tftpd'} eq 'listen') {
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return $vals;
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} else {
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return undef;
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}
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}
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sub check_tftpd
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{
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my $host = shift;
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return cmd($host, 'tftpd', 'Success.');
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}
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sub sysinfo
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{
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my $host = shift;
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return cmd($host, 'sysinfo', 'Success.');
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}
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sub updateflash
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{
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my $host = shift;
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my $old = shift;
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my $new = shift;
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return undef unless $new;
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return cmd($host, "updateflash mainimage $old $new", 'Success.', 90);
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}
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sub cmd
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{
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my $host = shift;
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my $string = shift;
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my $expect_last = shift;
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my $timeout = shift || 5;
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my @lines = $host->cmd(String => $string, Timeout => $timeout);
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my $vals = decode_lines(@lines);
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my $last = $host->lastline;
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unless ($expect_last) {
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return $vals;
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}
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if ($last =~ /$expect_last$/) {
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return $vals;
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} else {
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warn "Error with command ($string): $last";
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return undef;
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}
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}
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sub decode_lines
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{
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my @lines = @_;
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my %conf;
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my $key = '';
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my $val = '';
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my $in_key = 0;
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my $in_val = 0;
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foreach my $line (@lines) {
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my @chars = split //, $line;
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my $last_key = '';
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foreach my $c (@chars) {
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if ($c eq '[' || $c eq "\r" || $c eq "\n") {
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if ($c eq '[') {
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$in_key = 1;
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$in_val = 0;
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} else {
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$in_key = 0;
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$in_val = 0;
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}
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if ($key) {
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$key =~ s/^\s+//;
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$key =~ s/\s+$//;
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$val =~ s/^\s+//;
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$val =~ s/\s+$//;
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if ($key eq 'Checksum' && $last_key) {
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# Special case for these bastids.
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my $new = $last_key;
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$new =~ s/\s+\S+$//;
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$key = $new . " " . $key;
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}
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$last_key = $key;
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$conf{$key} = $val;
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$key = '';
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$val = '';
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}
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} elsif ($c eq ']') {
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$in_val = 1;
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$in_key = 0;
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$c = shift @chars;
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} elsif ($in_key) {
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$key .= $c;
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} elsif ($in_val) {
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$val .= $c;
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}
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}
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}
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#print Dump \%conf;
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if (%conf) {
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return \%conf;
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} else {
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return \@lines;
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}
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}
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sub read_conf
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{
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my $file = shift;
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my %conf;
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my $in_ip_list = 0;
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open my $fh, $file or die "Couldn't open file $file: $!";
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while (<$fh>) {
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chomp;
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next if /^#/;
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next if /^$/;
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if ($in_ip_list) {
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push @{ $conf{'ips'} }, $_;
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} else {
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my ($key, $val) = split /\s+/, $_, 2;
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if (lc($key) eq 'ips') {
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$in_ip_list = 1;
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next;
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}
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$conf{ lc($key) } = $val;
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}
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}
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close $fh;
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#print Dump \%conf;
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foreach (
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'password',
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'file_name', 'file_size', 'file_cksum',
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'ver', 'cksum', 'ips',
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) {
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die "No $_ specified in config file!"
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if (not exists $conf{$_});
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}
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return \%conf;
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}
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sub mylog
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{
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my $thing = shift;
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chomp $thing;
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my $save = shift;
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print $thing, "\n";
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if (defined $save && $save == LOG_SAVE) {
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unless ($MYLOG) {
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open ($MYLOG, '>>', $log_file)
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or die "Couldn't open logfile!\n";
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my $ofh = select $MYLOG;
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$|=1;
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select $ofh;
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mylog("Opened log ($log_file)");
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}
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flock($MYLOG, LOCK_EX);
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print $MYLOG (scalar gmtime), "\t", $thing, "\n"
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or die "Couldn't print to MYLOG: $!";
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flock($MYLOG, LOCK_UN);
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}
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}
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sub GetLogName
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{
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my $prefix = shift || die "Invalid prefix passed for log";
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my $logdate = GetLogDate();
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my $logver = 0;
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my $logname;
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do {
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$logname = $prefix . $logdate . sprintf("%02d", $logver) . '.log';
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$logver++;
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} until (not -e $logname);
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return $logname;
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}
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sub GetLogDate
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{
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my ($sec,$min,$hour,$mday,$mon,$year,,,) = localtime();
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$mon++;
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$year += 1900;
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if ($min < 10) { $min = "0$min" }
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if ($sec < 10) { $sec = "0$sec" }
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if ($hour < 10) { $hour = "0$hour" }
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if ($mday < 10) { $mday = "0$mday" }
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if ($mon < 10) { $mon = "0$mon" }
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my $time = $year . $mon . $mday;
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return $time;
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}
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