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