openssl/util/checkhash.pl
2005-04-19 15:17:30 +00:00

222 lines
3.8 KiB
Perl

#!/usr/bin/env perl -w
my $package = caller;
if (!(defined $package))
{
my $retval = check_hashes(@ARGV);
exit $retval;
}
1;
sub check_hashes
{
my @args = @_;
my $change_dir = "";
my $check_program = "sha1/fips_standalone_sha1";
my $verbose = 0;
my $badfiles = 0;
my $rebuild = 0;
my $force_rewrite = 0;
my $hash_file = "fipshashes.c";
my $recurse = 0;
my @fingerprint_files;
while (@args)
{
my $arg = $args[0];
if ($arg eq "-chdir")
{
shift @args;
$change_dir = shift @args;
}
elsif ($arg eq "-rebuild")
{
shift @args;
$rebuild = 1;
}
elsif ($arg eq "-verbose")
{
shift @args;
$verbose = 1;
}
elsif ($arg eq "-force-rewrite")
{
shift @args;
$force_rewrite = 1;
}
elsif ($arg eq "-hash_file")
{
shift @args;
$hash_file = shift @args;
}
elsif ($arg eq "-recurse")
{
shift @args;
$recurse = 1;
}
elsif ($arg eq "-program_path")
{
shift @args;
$check_program = shift @args;
}
else
{
print STDERR "Unknown Option $arg";
return 1;
}
}
chdir $change_dir if $change_dir ne "";
if ($recurse)
{
@fingerprint_files = ("fingerprint.sha1",
<*/fingerprint.sha1>);
}
else
{
push @fingerprint_files, $hash_file;
}
foreach $fp (@fingerprint_files)
{
if (!open(IN, "$fp"))
{
print STDERR "Can't open file $fp";
return 1;
}
print STDERR "Opening Fingerprint file $fp\n" if $verbose;
my $dir = $fp;
$dir =~ s/[^\/]*$//;
while (<IN>)
{
chomp;
if (!(($file, $hash) = /^\"HMAC-SHA1\((.*)\)\s*=\s*(\w*)\",$/))
{
/^\"/ || next;
print STDERR "FATAL: Invalid syntax in file $fp\n";
print STDERR "Line:\n$_\n";
fatal_error();
return 1;
}
if (!$rebuild && length($hash) != 40)
{
print STDERR "FATAL: Invalid hash length in $fp for file $file\n";
fatal_error();
return 1;
}
push @hashed_files, "$dir$file";
if (exists $hashes{"$dir$file"})
{
print STDERR "FATAL: Duplicate Hash file $dir$file\n";
fatal_error();
return 1;
}
if (! -r "$dir$file")
{
print STDERR "FATAL: Can't access $dir$file\n";
fatal_error();
return 1;
}
$hashes{"$dir$file"} = $hash;
}
close IN;
}
@checked_hashes = `$check_program @hashed_files`;
if ($? != 0)
{
print STDERR "Error running hash program $check_program\n";
fatal_error();
return 1;
}
if (@checked_hashes != @hashed_files)
{
print STDERR "FATAL: hash count incorrect\n";
fatal_error();
return 1;
}
foreach (@checked_hashes)
{
chomp;
if (!(($file, $hash) = /^HMAC-SHA1\((.*)\)\s*=\s*(\w*)$/))
{
print STDERR "FATAL: Invalid syntax in file $fp\n";
print STDERR "Line:\n$_\n";
fatal_error();
return 1;
}
if (length($hash) != 40)
{
print STDERR "FATAL: Invalid hash length for file $file\n";
fatal_error();
return 1;
}
if ($hash ne $hashes{$file})
{
if ($rebuild)
{
print STDERR "Updating hash on file $file\n";
$hashes{$file} = $hash;
}
else
{
print STDERR "Hash check failed for file $file\n";
}
$badfiles++;
}
elsif ($verbose)
{ print "Hash Check OK for $file\n";}
}
if ($badfiles && !$rebuild)
{
print STDERR "FATAL: hash mismatch on $badfiles files\n";
fatal_error();
return 1;
}
if ($badfiles || $force_rewrite)
{
print "Updating Hash file $hash_file\n";
if (!open(OUT, ">$hash_file"))
{
print STDERR "Error rewriting $hash_file";
return 1;
}
print OUT "const char * const FIPS_source_hashes[] = {\n";
foreach (@hashed_files)
{
print OUT "\"HMAC-SHA1($_)= $hashes{$_}\",\n";
}
print OUT "};\n";
close OUT;
}
if (!$badfiles)
{
print "FIPS hash check successful\n";
}
return 0;
}
sub fatal_error
{
print STDERR "*** Your source code does not match the FIPS validated source ***\n";
}