#!/usr/bin/perl
# $RedRiver: update_trango.pl,v 1.10 2005/12/21 01:17:06 andrew Exp $
########################################################################
# update_trango.pl *** Updates trango foxes with a new firmware
#
# 2005.11.15 #*#*# andrew fresh <andrew@mad-techies.org>
########################################################################
use strict;
use warnings;
use Net::TFTP;
my $config_file = shift || 'update_trango.conf';
my $max_tries = 3;
my $l = Mylogger->new( { log_prefix => 'UT' } );
$l->sp("Reading config file '$config_file'");
my $conf = read_conf($config_file);
$l->sp(" Hardware Type: $conf->{'type'}");
$l->sp(" File Name: $conf->{'file_name'}");
$l->sp(" File Size: $conf->{'file_size'}");
$l->sp(" File Checksum: $conf->{'file_cksum'}");
$l->sp(" FW Version: $conf->{'ver'}");
$l->sp(" FW Checksum: $conf->{'cksum'}");
$l->sp("");
foreach my $fox (@{ $conf->{'ips'} }) {
$l->sp("Updating: $fox");
## Connect and login.
my $t = new Trango::Telnet ({
Host => $fox,
Timeout => 5,
});
$l->p("Connecting to $fox");
my ($type, $version) = $t->connect();
unless (defined $type && defined $version) {
$l->sp("Error connecting!");
next;
}
if ($type ne $conf->{'type'}) {
$l->sp("Wrong type of unit ('$type' should be '$conf->{'type'}')");
$t->close;
next;
}
if ($version eq $conf->{'ver'}) {
$l->sp("Already up to date with firmware version '$version'");
$t->close;
next;
}
$l->p("Logging in");
$t->login($conf->{'password'}) || die "Couldn't login: $!";
$l->p("Sending commands");
## Send commands
if ( upload($t, $conf->{'file_name'}) ) {
$l->p("Rebooting");
$t->reboot;
} else {
$l->p("Exiting");
$t->exit;
}
$t->close;
$l->sp("");
}
sub upload
{
my $t = shift;
my $file = shift;
my $ver = $t->ver;
$l->p("Current version '$ver->{'Firmware Version'}'");
if (
$ver->{'Firmware Version'} eq $conf->{'ver'} &&
$ver->{'Firmware Checksum'} eq $conf->{'cksum'}
) {
$l->sp("Already updated!");
return 1;
}
my $try = 0;
while (1) {
if ($try >= $max_tries) {
$l->sp("Couldn't update in $max_tries tries!");
return undef;
}
$try++;
#sysinfo($self->{'_host'});
$l->p("Enabling TFTPd");
$t->enable_tftpd || die "Couldn't enable tftpd";
$l->p("Uploading file ($file)");
# use tftp to push the file up
my $tftp = Net::TFTP->new($t->Host, Mode => 'octet');
$tftp->put($file, $file)
or die "Error uploading: " . $tftp->error;
# waitfor some sort of output
# make sure it says 'Success.' otherwise error
#print "LAST: " . $self->lastline;
#my @lines = $self->getlines;
#print Dump \@lines;
$l->p("Checking upload ($conf->{'file_cksum'})");
my $results = $t->tftpd;
# check the 'File Length' against ???
if ( $results->{'File Checksum'} ne $conf->{'file_cksum'}) {
$l->sp(
"File checksum '" . $results->{'File Checksum'} .
"does not match config file '" . $conf->{'file_cksum'} . "'!"
);
next;
}
$l->p("File checksum matches . . . ");
if ($results->{'File Length'} !~ /^$conf->{'file_size'} bytes/) {
$l->sp(
"File length '" . $results->{'File Length'} .
"does not match config file '" . $conf->{'file_size'} . " bytes'!"
);
next;
}
$l->p("File length matches . . . ");
if ( uc($results->{'File Name'}) ne uc($conf->{'file_name'}) ) {
$l->sp(
"File name '" . $results->{'File Name'} .
"' does not match config file '" . $conf->{'file_name'} . "'!"
);
next;
}
$l->p("File name matches . . . ");
$l->p("Updating flash (new checksum '$conf->{'cksum'}')");
unless ($results = $t->updateflash(
$ver->{'Firmware Checksum'}, $conf->{'cksum'}
) ) {
$l->sp("Couldn't update flash: $!");
next;
}
unless (
defined $results->{'Checksum'} &&
$results->{'Checksum'} eq $conf->{'cksum'}
) {
$l->sp("Saved checksum does not match config file!");
next;
}
$l->p("Uploaded checksum ($results->{'Checksum'}) " .
"matches ($conf->{'cksum'})");
$l->sp("Successfully updated!");
return 1;
}
}
sub read_conf
{
my $file = shift;
my %conf;
my $in_ip_list = 0;
open my $fh, $file or die "Couldn't open file $file: $!";
while (<$fh>) {
chomp;
next if /^#/;
next if /^$/;
if ($in_ip_list) {
s/\s+//g; # Whitespace is a no no
if (/^(\d{1,3}\.\d{1,3}\.\d{1,3}\.)(\d{1,3})-(\d{1,3})/) {
push @{ $conf{'ips'} }, $1 . $_ for ($2..$3);
} else {
push @{ $conf{'ips'} }, $_;
}
} else {
my ($key, $val) = split /\s+/, $_, 2;
if (lc($key) eq 'ips') {
$in_ip_list = 1;
next;
}
$key =~ s/^\s+//;
$key =~ s/\s+$//;
$val =~ s/^\s+//;
$val =~ s/\s+$//;
$conf{ lc($key) } = $val;
}
}
close $fh;
#print Dump \%conf;
foreach (
'password',
'file_name', 'file_size', 'file_cksum',
'ver', 'cksum', 'ips',
) {
die "No $_ specified in config file!"
if (not exists $conf{$_});
}
#print Dump \%conf;
#exit;
return \%conf;
}
package Trango::Telnet;
use base 'Net::Telnet';
my %PRIVATE = (
connected => 0,
logged_in => 0,
);
sub new {
my $class = shift;
my $args = shift || {};
$args->{'Timeout'} ||= 5;
$args->{'Prompt'} ||= '/#> *$/';
foreach my $key (keys %{ $args }) {
$PRIVATE{$key} = $args->{$key};
}
my $self = $class->SUPER::new(%{ $args });
bless $self;
#bless $self, $package;
return $self;
}
sub connect
{
my $self = shift;
unless ( $self->open(
Host => $PRIVATE{'Host'},
Errmode => 'return',
) ) {
$! = "Couldn't connect to $self->{'Host'}. Connection timed out.";
return undef, undef;
}
#$self->dump_log('dump.log');
## Login to remote host.
unless ($self->waitfor(
-match => '/password: ?$/i',
-errmode => "return",
) ) {
$! = "problem connecting to host ($self->{'Host'}): " . $self->lastline;
return undef;
}
$self->login_banner($self->lastline);
$PRIVATE{'connected'} = 1;
return ($self->host_type, $self->firmware_version);
}
sub login
{
my $self = shift;
my $password = shift;
$self->print($password);
unless ($self->waitfor(
-match => $self->prompt,
-errmode => "return",
) ) {
$! = "login ($self->{'Host'}) failed: " . $self->lastline;
return undef;
}
$PRIVATE{'logged_in'} = 1;
return 1;
}
sub login_banner
{
my $self = shift;
my $banner = shift || $PRIVATE{'login_banner'};
my ($type, $ver) = $banner =~
/Welcome to Trango Broadband Wireless (\S+)[\s-]+(.+)$/i;
$self->host_type($type);
$self->firmware_version($ver);
return $banner;
}
sub host_type
{
my $self = shift;
my $type = shift || $PRIVATE{'host_type'};
$PRIVATE{'host_type'} = $type;
return $type;
}
sub firmware_version
{
my $self = shift;
my $ver = shift || $PRIVATE{'firmware_version'};
$PRIVATE{'firmware_version'} = $ver;
return $ver
}
sub Host
{
my $self = shift;
my $host = shift || $PRIVATE{'Host'};
$PRIVATE{'HOST'} = $host;
return $host;
}
sub reboot
{
my $self = shift;
$self->print("reboot\n");
$self->getline;
return 1;
}
sub exit
{
my $self = shift;
$self->print("exit\n");
$self->getline;
return 1;
}
sub ver
{
my $self = shift;
return $self->cmd('ver');
}
sub tftpd
{
my $self = shift;
return $self->cmd('tftpd', 'Success.');
}
sub sysinfo
{
my $self = shift;
return $self->cmd('sysinfo', 'Success.');
}
sub enable_tftpd
{
my $self = shift;
my $vals = $self->cmd('tftpd on', 'Success.');
if ($vals->{'Tftpd'} eq 'listen') {
return $vals;
} else {
return undef;
}
}
sub updateflash
{
my $self = shift;
my $old = shift;
my $new = shift;
return undef unless $new;
return $self->cmd("updateflash mainimage $old $new", 'Success.', 90);
}
sub cmd
{
my $self = shift;
my $string = shift;
my $expect_last = shift;
my $timeout = shift || $PRIVATE{'Timeout'};
unless (defined $string) {
$! = "No command passed";
return undef;
}
unless ($PRIVATE{'connected'}) {
$! = "Not connected";
return undef;
}
unless ($PRIVATE{'logged_in'}) {
$! = "Not logged in";
return undef;
}
my @lines = $self->SUPER::cmd(String => $string, Timeout => $timeout);
my $vals = _decode_lines(@lines);
unless ($expect_last) {
return $vals;
}
my $last = $self->lastline;
if ($last =~ /$expect_last$/) {
return $vals;
} else {
warn "Error with command ($string): $last";
return undef;
}
}
sub _decode_lines
{
my @lines = @_;
my %conf;
my $key = '';
my $val = '';
my $in_key = 0;
my $in_val = 0;
foreach my $line (@lines) {
my @chars = split //, $line;
my $last_key = '';
foreach my $c (@chars) {
if ($c eq '[' || $c eq "\r" || $c eq "\n") {
if ($c eq '[') {
$in_key = 1;
$in_val = 0;
} else {
$in_key = 0;
$in_val = 0;
}
if ($key) {
$key =~ s/^\s+//;
$key =~ s/\s+$//;
$val =~ s/^\s+//;
$val =~ s/\s+$//;
if ($key eq 'Checksum' && $last_key) {
# Special case for these bastids.
my $new = $last_key;
$new =~ s/\s+\S+$//;
$key = $new . " " . $key;
}
$last_key = $key;
$conf{$key} = $val;
$key = '';
$val = '';
}
} elsif ($c eq ']') {
$in_val = 1;
$in_key = 0;
$c = shift @chars;
} elsif ($in_key) {
$key .= $c;
} elsif ($in_val) {
$val .= $c;
}
}
}
#print Dump \%conf;
if (%conf) {
return \%conf;
} else {
return \@lines;
}
}
package Mylogger;
use Fcntl ':flock'; # import LOCK_* constants
#use YAML;
use constant LOG_PRINT => 128;
use constant LOG_SAVE => 64;
DESTROY {
my $self = shift;
if ($self->{'MYLOG'}) {
$self->p("Closing log ($self->{'log_path'}/$self->{'log_file'})");
close $self->{'MYLOG'};
}
}
sub new {
my $package = shift;
my $self = shift || {};
$self->{'base_path'} ||= '.';
$self->{'log_path'} ||= $self->{'base_path'};
$self->{'log_prefix'} ||= 'LOG';
$self->{'log_file'} ||= GetLogName(
$self->{'log_prefix'},
$self->{'log_path'}
);
bless $self, $package;
}
sub s
{
my $self = shift;
my $m = shift;
return $self->mylog($m, LOG_SAVE);
}
sub p
{
my $self = shift;
my $m = shift;
return $self->mylog($m, LOG_PRINT);
}
sub sp
{
my $self = shift;
my $m = shift;
return $self->mylog($m, LOG_SAVE | LOG_PRINT);
}
sub mylog
{
my $self = shift;
my $thing = shift;
chomp $thing;
my $which = shift;
my $MYLOG;
if ($which & LOG_PRINT) {
print $thing, "\n";
}
if ($which & LOG_SAVE) {
if ($self->{'MYLOG'}) {
$MYLOG = $self->{'MYLOG'};
} else {
unless ($MYLOG) {
open ($MYLOG, '>>', $self->{'log_path'} . '/' . $self->{'log_file'})
or die "Couldn't open logfile!\n";
my $ofh = select $MYLOG;
$|=1;
select $ofh;
$self->{'MYLOG'} = $MYLOG;
$self->p("Opened log ($self->{'log_path'}/$self->{'log_file'})");
}
}
flock($MYLOG, LOCK_EX);
print $MYLOG (scalar gmtime), "\t", $thing, "\n"
or die "Couldn't print to MYLOG: $!";
flock($MYLOG, LOCK_UN);
}
}
sub GetLogName
{
my $prefix = shift || die "Invalid prefix passed for log";
my $logdate = GetLogDate();
my $logver = 0;
my $logname;
do {
$logname = $prefix . $logdate . sprintf("%02d", $logver) . '.log';
$logver++;
} until (not -e $logname);
return $logname;
}
sub GetLogDate
{
my ($sec,$min,$hour,$mday,$mon,$year,,,) = localtime();
$mon++;
$year += 1900;
if ($min < 10) { $min = "0$min" }
if ($sec < 10) { $sec = "0$sec" }
if ($hour < 10) { $hour = "0$hour" }
if ($mday < 10) { $mday = "0$mday" }
if ($mon < 10) { $mon = "0$mon" }
my $time = $year . $mon . $mday;
return $time;
}