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			125 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Perl
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			125 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Perl
		
	
	
		
			Executable File
		
	
	
	
	
#!/usr/bin/perl
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# Tune the configuration file
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use warnings;
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use strict;
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my $usage = <<EOU;
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$0 [-f <file>] unset <name>
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$0 [-f <file>] set <name> [<value>]
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EOU
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# for our eyes only:
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# $0 [-f <file>] full
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# Things that shouldn't be enabled with "full".
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# Notes:
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# - MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 and
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#   MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION could be enabled if the
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#   respective tests were adapted
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my @excluded = qw(
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MBEDTLS_DEPRECATED_REMOVED
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MBEDTLS_HAVE_SSE2
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MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
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MBEDTLS_ECP_DP_M221_ENABLED
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MBEDTLS_ECP_DP_M383_ENABLED
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MBEDTLS_ECP_DP_M511_ENABLED
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MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
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MBEDTLS_NO_PLATFORM_ENTROPY
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MBEDTLS_REMOVE_ARC4_CIPHERSUITES
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MBEDTLS_SSL_HW_RECORD_ACCEL
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MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
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MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
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MBEDTLS_ZLIB_SUPPORT
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MBEDTLS_PKCS11_C
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_ALT\s*$
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);
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# Things that should be enabled in "full" even if they match @excluded
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my @non_excluded = qw(
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PLATFORM_[A-Z0-9]+_ALT
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);
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my $config_file = "include/mbedtls/config.h";
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# get -f option
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if (@ARGV >= 2 && $ARGV[0] eq "-f") {
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    shift; # -f
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    $config_file = shift;
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    -f $config_file or die "No such file: $config_file\n";
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} else {
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    if (! -f $config_file)  {
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        chdir '..' or die;
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        -f $config_file
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            or die "Without -f, must be run from root or scripts\n"
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    }
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}
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# get action
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die $usage unless @ARGV;
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my $action = shift;
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my ($name, $value);
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if ($action eq "full") {
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    # nothing to do
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} elsif ($action eq "unset") {
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    die $usage unless @ARGV;
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    $name = shift;
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} elsif ($action eq "set") {
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    die $usage unless @ARGV;
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    $name = shift;
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    $value = shift if @ARGV;
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} else {
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    die $usage;
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}
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die $usage if @ARGV;
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open my $config_read, '<', $config_file or die "read $config_file: $!\n";
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my @config_lines = <$config_read>;
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close $config_read;
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my $exclude_re = join '|', @excluded;
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my $no_exclude_re = join '|', @non_excluded;
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open my $config_write, '>', $config_file or die "write $config_file: $!\n";
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my $done;
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for my $line (@config_lines) {
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    if ($action eq "full") {
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        if ($line =~ /name SECTION: Module configuration options/) {
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            $done = 1;
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        }
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        if (!$done && $line =~ m!^//\s?#define! &&
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                ( $line !~ /$exclude_re/ || $line =~ /$no_exclude_re/ ) ) {
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            $line =~ s!^//\s?!!;
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        }
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        if (!$done && $line =~ m!^\s?#define! &&
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                ! ( $line !~ /$exclude_re/ || $line =~ /$no_exclude_re/ ) ) {
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            $line =~ s!^!//!;
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        }
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    } elsif ($action eq "unset") {
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        if (!$done && $line =~ /^\s*#define\s*$name\b/) {
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            $line = '//' . $line;
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            $done = 1;
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        }
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    } elsif (!$done && $action eq "set") {
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        if ($line =~ m!^(?://)?\s*#define\s*$name\b!) {
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            $line = "#define $name";
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            $line .= " $value" if defined $value && $value ne "";
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            $line .= "\n";
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            $done = 1;
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        }
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    }
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    print $config_write $line;
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}
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close $config_write;
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die "configuration section not found" if ($action eq "full" && !$done);
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die "$name not found" if ($action ne "full" && !$done);
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__END__
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