#!/usr/bin/perl
# $RedRiver: update_trango.pl,v 1.21 2007/02/01 17:08:44 mike 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 YAML qw/ Dump LoadFile /;
use Net::TFTP;
use lib '.';
use Net::Telnet::Trango;

my $config_file = shift || 'update_trango.yaml';
my $max_tries = 3;


my $l = Mylogger->new( { log_prefix => 'UT' } );


$l->sp("Reading config file '$config_file'");
my $conf = LoadFile($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("");

my @foxes = (
'10.100.1.2',
'10.100.2.2',
'10.100.3.2',
'10.100.4.2',
);

foreach my $fox (@foxes) {
  $l->sp("Checking: $fox");
  my $needs_reboot = 0;

  ## Connect and login.
  my $t = new Net::Telnet::Trango (
    Timeout => 5,
    Errmode => 'return',
  ) or die "Couldn't make new connection: $!";
  $l->p("Connecting to $fox");
  unless ( $t->open($fox) ) {
    $l->sp("Error connecting: $!");
    next;
  }

  foreach my $firmware_type ('Firmware', 'FPGA') {

    if (! exists $conf->{$firmware_type}) {
	  $l->s("No configs for '$firmware_type'");
	  $t->close();
	  next;
	}

    my $host_type = $t->host_type;
    if (uc($conf->{'firmware_type'}) eq 'FPGA') {
      $host_type =~ s/\s.*$//;
    }

    if (! exists $conf->{$firmware_type}->{$host_type}) {
	  $l->sp("No '$firmware_type' config for type $host_type");
	  $t->close();
	  next;
	}

    unless ($t->logged_in) {
      $l->p("Logging in");
      $t->login($conf->{general}->{'password'}) || die "Couldn't login: $!";
	  $t->exit();
    }

	foreach my $k (keys %{ $conf->{general} }) {
	  $conf->{$firmware_type}->{$host_type}->{$k} ||= $conf->{general}->{$k};
    }
	$conf->{$firmware_type}->{$host_type}->{firmware_type} ||= $firmware_type;
	$conf->{$firmware_type}->{$host_type}->{type} ||= $host_type;

    $l->sp("Updating: $host_type $firmware_type on $fox");
    $l->p("Sending commands");
    ## Send commands
    if ( upload($t, $conf->{$firmware_type}->{$host_type}) ) {
      $l->sp("Successfull!");
	  $needs_reboot = 1;
    } else {
	  $l->sp("Failed");
    }
  
    $l->sp("");
  }

  if ($needs_reboot) {
    $l->sp("Rebooting $fox");
    $t->reboot;
  } else {
    $l->sp("Exiting $fox");
    $t->exit();
  }
  exit;
}

sub upload
{
  my $t    = shift;
  my $conf = shift;

  my $file = $conf->{firmware_path} . '/' . $conf->{file_name};

  my $fw_type = $conf->{firmware_type};

  my $ver = $t->ver;
  print Dump $ver;
  $l->p("Current version '" . $ver->{$fw_type . ' Version'} . "'");
  exit;

  if (
    $ver->{$fw_type . ' Version'}  eq $conf->{'ver'} && 
    $ver->{$fw_type . ' Checksum'} eq $conf->{'cksum'}
  ) {
    $l->sp("Already updated!");
    return 0;
  }

  my $try = 0;
  while (1) {
    if ($try >= $max_tries) {
      $l->sp("Couldn't update in $max_tries tries!");
      return undef;
    }
    $try++;

    #sysinfo($self->{'_host'});
    
    $l->p("Enabling TFTPd");
    unless ($t->enable_tftpd) {
      $l->sp("Couldn't enable tftpd");
      next;
    }

    $l->p("Uploading file ($file)");
    # use tftp to push the file up
    my $tftp = Net::TFTP->new($t->Host, Mode => 'octet');

    unless ($tftp->put($file, $file)) {
      $l->sp("Error uploading: " . $tftp->error);
      next;
    }

    $l->p("Checking upload ($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 . . . ");

    my $image_type = 'mainimage';
    if ($fw_type eq 'FPGA') {
      $image_type = 'fpgaimage';
    }
    $l->p("Updating $image_type (new checksum '$conf->{'cksum'}')");
    unless ($results = $t->updateflash(
      args => $image_type . ' ' . $ver->{$fw_type . ' Checksum'} . 
              ' '          . $conf->{'cksum'},
      Timeout => 90,
    ) ) {
      $l->sp("Couldn't update flash: $!");
      next;
    }

    unless (
      defined $results->{'Checksum'} && 
      $results->{'Checksum'} eq $conf->{'cksum'}
    ) {
      $l->sp("Saved checksum " . $results->{'Checksum'} . " does not match config file " .  $conf->{'cksum'} . "!");
      next;
    }
    $l->p("Uploaded checksum ($results->{'Checksum'}) " . 
          "matches ($conf->{'cksum'})");
    
    $l->sp("Successfully updated!");
    return 1;
  }
}

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;
}