src/util/disrom.pl

   1 #!/usr/bin/perl -w
   2 #
   3 # Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>.
   4 #
   5 # This program is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU General Public License as
   7 # published by the Free Software Foundation; either version 2 of the
   8 # License, or any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  18 # 02110-1301, USA.
  19
  20 use strict;
  21 use warnings;
  22
  23 use FindBin;
  24 use lib "$FindBin::Bin";
  25 use Option::ROM qw ( :all );
  26
  27 my $romfile = shift || "-";
  28 my $rom = new Option::ROM;
  29 $rom->load ( $romfile );
  30
  31 my $index = 0;
  32
  33 do {
  34   die "Not an option ROM image\n"
  35       unless $rom->{signature} == ROM_SIGNATURE;
  36
  37   my $romlength = ( $rom->{length} * 512 );
  38   my $filelength = $rom->length;
  39   die "ROM image truncated (is $filelength, should be $romlength)\n"
  40       if $filelength < $romlength;
  41
  42   printf "Index: %d, offset: 0x%08x\n\n", $index++, $rom->file_offset;
  43   printf "ROM header:\n\n";
  44   printf "  %-16s 0x%02x (%d)\n", "Length:",
  45          $rom->{length}, ( $rom->{length} * 512 );
  46   printf "  %-16s 0x%02x (%s0x%02x)\n", "Checksum:", $rom->{checksum},
  47          ( ( $rom->checksum () == 0 ) ? "" : "INCORRECT: " ), $rom->checksum () if ( exists $rom->{checksum} );
  48   printf "  %-16s 0x%04x\n", "Init:", $rom->{init} if ( defined $rom->{init} );
  49   printf "  %-16s 0x%04x\n", "UNDI header:", $rom->{undi_header} if ( exists $rom->{undi_header} );
  50   printf "  %-16s 0x%04x\n", "PCI header:", $rom->{pci_header};
  51   printf "  %-16s 0x%04x\n", "PnP header:", $rom->{pnp_header} if ( exists $rom->{pnp_header} );
  52   printf "\n";
  53
  54   my $efi = $rom->efi_header();
  55   if ( $efi ) {
  56     printf "EFI header:\n\n";
  57     printf "  %-16s 0x%04x (%d)\n", "Init size:",
  58            $efi->{init_size}, ( $efi->{init_size} * 512 );
  59     printf "  %-16s 0x%08x\n", "EFI Signature:", $efi->{efi_signature};
  60     printf "  %-16s 0x%04x\n", "EFI Subsystem:", $efi->{efi_subsystem};
  61     printf "  %-16s 0x%04x\n", "EFI Machine type:", $efi->{efi_machine_type};
  62     printf "  %-16s 0x%04x\n", "Compression type:", $efi->{compression_type};
  63     printf "  %-16s 0x%04x\n", "EFI Image offset:", $efi->{efi_image_offset};
  64     printf "\n";
  65   }
  66
  67   my $pci = $rom->pci_header();
  68   if ( $pci ) {
  69     printf "PCI header:\n\n";
  70     printf "  %-16s %s\n", "Signature:", $pci->{signature};
  71     printf "  %-16s 0x%04x\n", "Vendor ID:", $pci->{vendor_id};
  72     printf "  %-16s 0x%04x\n", "Device ID:", $pci->{device_id};
  73     if ( $pci->{device_list} ) {
  74       printf "  %-16s %s\n", "Device list:",
  75              ( join ( ", ", map { sprintf "0x%04x", $_ } $pci->device_list ) );
  76     }
  77     printf "  %-16s 0x%02x%02x%02x\n", "Device class:",
  78            $pci->{base_class}, $pci->{sub_class}, $pci->{prog_intf};
  79     printf "  %-16s 0x%04x (%d)\n", "Image length:",
  80            $pci->{image_length}, ( $pci->{image_length} * 512 );
  81     printf "  %-16s 0x%04x (%d)\n", "Runtime length:",
  82            $pci->{runtime_length}, ( $pci->{runtime_length} * 512 );
  83     printf "  %-16s 0x%02x\n", "Code type:", $pci->{code_type};
  84     if ( exists $pci->{conf_header} ) {
  85       printf "  %-16s 0x%04x\n", "Config header:", $pci->{conf_header};
  86       printf "  %-16s 0x%04x\n", "CLP entry:", $pci->{clp_entry};
  87     }
  88     printf "\n";
  89   }
  90
  91   my $pnp = $rom->pnp_header();
  92   if ( $pnp ) {
  93     printf "PnP header:\n\n";
  94     printf "  %-16s %s\n", "Signature:", $pnp->{signature};
  95     printf "  %-16s 0x%02x (%s0x%02x)\n", "Checksum:", $pnp->{checksum},
  96            ( ( $pnp->checksum == 0 ) ? "" : "INCORRECT: " ), $pnp->checksum;
  97     printf "  %-16s 0x%04x \"%s\"\n", "Manufacturer:",
  98            $pnp->{manufacturer}, $pnp->manufacturer;
  99     printf "  %-16s 0x%04x \"%s\"\n", "Product:",
 100            $pnp->{product}, $pnp->product;
 101     printf "  %-16s 0x%04x\n", "BCV:", $pnp->{bcv};
 102     printf "  %-16s 0x%04x\n", "BDV:", $pnp->{bdv};
 103     printf "  %-16s 0x%04x\n", "BEV:", $pnp->{bev};
 104     printf "\n";
 105   }
 106
 107   my $undi = $rom->undi_header();
 108   if ( $undi ) {
 109     printf "UNDI header:\n\n";
 110     printf "  %-16s %s\n", "Signature:", $undi->{signature};
 111     printf "  %-16s 0x%02x (%s0x%02x)\n", "Checksum:", $undi->{checksum},
 112            ( ( $undi->checksum == 0 ) ? "" : "INCORRECT: " ), $undi->checksum;
 113     printf "  %-16s %d.%d.%d\n", "UNDI version:", $undi->{version_major},
 114            $undi->{version_minor}, $undi->{version_revision};
 115     printf "  %-16s 0x%04x\n", "Loader entry:", $undi->{loader_entry};
 116     printf "  %-16s 0x%04x\n", "Stack size:", $undi->{stack_size};
 117     printf "  %-16s 0x%04x\n", "Data size:", $undi->{data_size};
 118     printf "  %-16s 0x%04x\n", "Code size:", $undi->{code_size};
 119     printf "  %-16s %s\n", "Bus type:", $undi->{bus_type};
 120     printf "\n";
 121   }
 122
 123   my $ipxe = $rom->ipxe_header();
 124   if ( $ipxe ) {
 125     printf "iPXE header:\n\n";
 126     printf "  %-16s 0x%02x (%s0x%02x)\n", "Checksum:", $ipxe->{checksum},
 127            ( ( $ipxe->checksum == 0 ) ? "" : "INCORRECT: " ), $ipxe->checksum;
 128     printf "  %-16s 0x%02x (%d)\n", "Shrunk length:",
 129            $ipxe->{shrunk_length}, ( $ipxe->{shrunk_length} * 512 );
 130     printf "  %-16s 0x%08x\n", "Build ID:", $ipxe->{build_id};
 131     printf "\n";
 132   }
 133
 134 } while ( $rom = $rom->next_image );