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  1. #!/usr/bin/perl -w
  2. ################################################
  3. #
  4. # This file should not be edited for settings
  5. # use settings.pl for that
  6. #
  7. # author: arune @ efnet
  8. #
  9. ################################################
  10.  
  11. use IO::Socket;
  12. use integer;
  13. use threads;
  14. use Cwd qw(abs_path);
  15. use File::Basename;
  16.  
  17. $host = "localhost";
  18. $port = 1200;
  19.  
  20. my $path = dirname(abs_path($0));
  21.  
  22. if (-e $path."/settings.pl") {
  23.     require $path."/settings.pl";
  24. } else {
  25.     print "Warning: No settings.pl was found in ".$path.". \nUsing default settings localhost:1200 instead.\n\n";
  26. }
  27.  
  28. $remote = IO::Socket::INET->new(
  29.                     Proto    => "tcp",
  30.                     PeerAddr => $host,
  31.                     PeerPort => $port,
  32.                 )
  33.                or die "Error: Cannot connect to port $port at $host\n";
  34.  
  35. $biosfile = "bios.inc";
  36. open (FP, "+<".$biosfile) or die "Error: Cannot open file $biosfile\n";
  37. @file = <FP>;
  38. close FP;
  39. $foundrow = 0;
  40. foreach $file (@file) {
  41.     if ($file =~ m/^NODE_HW_ID=/) {
  42.         $foundrow = 1;
  43.     }
  44. }
  45. if ($foundrow == 0) {
  46.     print "Error: Did not find NODE_HW_ID= in file $biosfile\n";
  47.     exit 1;
  48. }
  49.  
  50. #print "\n";
  51. print "Connect your node to the CAN-network (disconnect it first if it's already connected)\n";
  52. print "Abort with Ctrl+c\n";
  53. #read line from socket (blocking)
  54. while ( $line = <$remote> ) {
  55. #PKT 00087f00 1 0 39 13 01 20 78 56 34 12
  56.         if (length($line) > 12) {
  57.                 $id = hex(substr($line, 4, 8));
  58.                 $class = ($id & 0x1E000000)>>25;
  59.                 if ($class == 0) {
  60.                     $nmttype = ($id & 0x00FF0000)>>16;
  61.                     if ($nmttype == 8) {
  62.                         print $line."";
  63.                         #print $class." ".$nmttype."\n";
  64.                         if (length($line) < 40) {
  65.                             print "Error: A node was started but it did not have a HWID\n";
  66.                             exit 1;
  67.                         }
  68.                         $hwid = (hex(substr($line, 38, 2))<<24)+(hex(substr($line, 35, 2))<<16)+
  69.                         (hex(substr($line, 32, 2))<<8)+(hex(substr($line, 29, 2))<<0);
  70.                         $hwidhex = sprintf("%08x", $hwid);
  71.                         print "Setting HWID in bios.inc to 0x".$hwidhex."\n";
  72.                        
  73.                         open (FP, "<".$biosfile) or die "Cannot open file $biosfile\n";
  74.                         @file = <FP>;
  75.                         close FP;
  76.                         open (FP, ">".$biosfile) or die "Cannot open file $biosfile\n";
  77.                         foreach $file (@file) {
  78.                             $file =~ s/^NODE_HW_ID=.*/NODE_HW_ID=0x$hwidhex/g;
  79.                             print FP $file;
  80.                         }
  81.                         close FP;
  82.                        
  83.                         exit 0;
  84.                        
  85.                     }
  86.                 }
  87.                
  88.     }
  89. }
  90.  
  91.