crypto/objects/objxref.pl

   1 #! /usr/bin/env perl
   2 # Copyright 1998-2019 The OpenSSL Project Authors. All Rights Reserved.
   3 #
   4 # Licensed under the Apache License 2.0 (the "License").  You may not use
   5 # this file except in compliance with the License.  You can obtain a copy
   6 # in the file LICENSE in the source distribution or at
   7 # https://www.openssl.org/source/license.html
   8
   9
  10 use strict;
  11
  12 my %xref_tbl;
  13 my %oid_tbl;
  14
  15 my ($mac_file, $xref_file) = @ARGV;
  16
  17 # Output year depends on the year of the script and the input file.
  18 my $YEAR = [localtime([stat($0)]->[9])]->[5] + 1900;
  19 my $iYEAR = [localtime([stat($mac_file)]->[9])]->[5] + 1900;
  20 $YEAR = $iYEAR if $iYEAR > $YEAR;
  21 $iYEAR = [localtime([stat($xref_file)]->[9])]->[5] + 1900;
  22 $YEAR = $iYEAR if $iYEAR > $YEAR;
  23
  24 open(IN, $mac_file) || die "Can't open $mac_file, $!\n";
  25
  26 # Read in OID nid values for a lookup table.
  27
  28 while (<IN>)
  29         {
  30         s|\R$||;                # Better chomp
  31         my ($name, $num) = /^(\S+)\s+(\S+)$/;
  32         $oid_tbl{$name} = $num;
  33         }
  34 close IN;
  35
  36 open(IN, $xref_file) || die "Can't open $xref_file, $!\n";
  37
  38 my $ln = 1;
  39
  40 while (<IN>)
  41         {
  42         s|\R$||;                # Better chomp
  43         s/#.*$//;
  44         next if (/^\S*$/);
  45         my ($xr, $p1, $p2) = /^(\S+)\s+(\S+)\s+(\S+)/;
  46         check_oid($xr);
  47         check_oid($p1);
  48         check_oid($p2);
  49         $xref_tbl{$xr} = [$p1, $p2, $ln];
  50         }
  51
  52 my @xrkeys = keys %xref_tbl;
  53
  54 my @srt1 = sort { $oid_tbl{$a} <=> $oid_tbl{$b}} @xrkeys;
  55
  56 my $i;
  57 for($i = 0; $i <= $#srt1; $i++)
  58         {
  59         $xref_tbl{$srt1[$i]}[2] = $i;
  60         }
  61
  62 my @srt2 = sort
  63         {
  64         my$ap1 = $oid_tbl{$xref_tbl{$a}[0]};
  65         my$bp1 = $oid_tbl{$xref_tbl{$b}[0]};
  66         return $ap1 - $bp1 if ($ap1 != $bp1);
  67         my$ap2 = $oid_tbl{$xref_tbl{$a}[1]};
  68         my$bp2 = $oid_tbl{$xref_tbl{$b}[1]};
  69
  70         return $ap2 - $bp2;
  71         } @xrkeys;
  72
  73 my $pname = $0;
  74 $pname =~ s|.*/||;
  75
  76 print <<EOF;
  77 /*
  78  * WARNING: do not edit!
  79  * Generated by $pname
  80  *
  81  * Copyright 1998-$YEAR The OpenSSL Project Authors. All Rights Reserved.
  82  *
  83  * Licensed under the Apache License 2.0 (the "License").  You may not use
  84  * this file except in compliance with the License.  You can obtain a copy
  85  * in the file LICENSE in the source distribution or at
  86  * https://www.openssl.org/source/license.html
  87  */
  88
  89
  90 typedef struct {
  91     int sign_id;
  92     int hash_id;
  93     int pkey_id;
  94 } nid_triple;
  95
  96 DEFINE_STACK_OF(nid_triple)
  97
  98 static const nid_triple sigoid_srt[] = {
  99 EOF
 100
 101 foreach (@srt1)
 102         {
 103         my $xr = $_;
 104         my ($p1, $p2) = @{$xref_tbl{$_}};
 105         my $o1 = "    {NID_$xr, NID_$p1,";
 106         my $o2 = "NID_$p2},";
 107         if (length("$o1 $o2") < 78)
 108                 {
 109                 print "$o1 $o2\n";
 110                 }
 111         else
 112                 {
 113                 print "$o1\n     $o2\n";
 114                 }
 115         }
 116
 117 print "};";
 118 print <<EOF;
 119
 120
 121 static const nid_triple *const sigoid_srt_xref[] = {
 122 EOF
 123
 124 foreach (@srt2)
 125         {
 126         my ($p1, $p2, $x) = @{$xref_tbl{$_}};
 127         # If digest or signature algorithm is "undef" then the algorithm
 128         # needs special handling and is excluded from the cross reference table.
 129         next if $p1 eq "undef" || $p2 eq "undef";
 130         print "    \&sigoid_srt\[$x\],\n";
 131         }
 132
 133 print "};\n";
 134
 135 sub check_oid
 136         {
 137         my ($chk) = @_;
 138         if (!exists $oid_tbl{$chk})
 139                 {
 140                 die "Can't find \"$chk\"\n";
 141                 }
 142         }