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# $Id: 05-RRSIG.t 1528 2017-01-18 21:44:58Z willem $ -*-perl-*-
#
use strict;
use Test::More;
use Net::DNS;
my @prerequisite = qw(
MIME::Base64
Time::Local
);
foreach my $package (@prerequisite) {
next if eval "require $package";
plan skip_all => "$package not installed";
exit;
}
plan tests => 73;
my $name = 'net-dns.org';
my $type = 'RRSIG';
my $code = 46;
my @attr = qw( typecovered algorithm labels orgttl sigexpiration siginception keytag signame signature );
my @data = (
qw( NS 7 2 3600 20130914141655 20130815141655 60909 net-dns.org ),
join '', qw( IRlCjYNZCkddjoFw6UGxAga/EvxgENl+IESuyRH9vlrys
yqne0gPpclC++raP3+yRA+gDIHrMkIwsLudqod4iuoA73
Mw1NxETS6lm2eQTDNzLSY6dnJxZBqXypC3Of7bF3UmR/G
NhcFIThuV/qFq+Gs+g0TJ6eyMF6ydYhjS31k= )
);
my @also = qw( sig sigin sigex vrfyerrstr );
my $wire =
'0002070200000E1052346FD7520CE2D7EDED076E65742D646E73036F7267002119428D83590A475D8E8170E941B10206BF12FC6010D97E2044AEC911FDBE5AF2B32AA77B480FA5C942FBEADA3F7FB2440FA00C81EB324230B0BB9DAA87788AEA00EF7330D4DC444D2EA59B67904C33732D263A767271641A97CA90B739FEDB17752647F18D85C1484E1B95FEA16AF86B3E8344C9E9EC8C17AC9D6218D2DF59';
{
my $typecode = unpack 'xn', new Net::DNS::RR(". $type")->encode;
is( $typecode, $code, "$type RR type code = $code" );
my $hash = {};
@{$hash}{@attr} = @data;
my $rr = new Net::DNS::RR(
name => $name,
type => $type,
%$hash
);
my $string = $rr->string;
my $rr2 = new Net::DNS::RR($string);
is( $rr2->string, $string, 'new/string transparent' );
is( $rr2->encode, $rr->encode, 'new($string) and new(%hash) equivalent' );
foreach (@attr) {
is( $rr->$_, $hash->{$_}, "expected result from rr->$_()" );
}
foreach (@also) {
is( $rr2->$_, $rr->$_, "additional attribute rr->$_()" );
}
my $empty = new Net::DNS::RR("$name $type");
my $encoded = $rr->encode;
my $decoded = decode Net::DNS::RR( \$encoded );
my $hex1 = uc unpack 'H*', $decoded->encode;
my $hex2 = uc unpack 'H*', $encoded;
my $hex3 = uc unpack 'H*', substr( $encoded, length $empty->encode );
is( $hex1, $hex2, 'encode/decode transparent' );
is( $hex3, $wire, 'encoded RDATA matches example' );
}
{
my @rdata = @data;
my $sig = pop @rdata;
my $lc = new Net::DNS::RR( lc(". $type @rdata ") . $sig );
my $rr = new Net::DNS::RR( uc(". $type @rdata ") . $sig );
my $hash = {};
my $predecessor = $rr->encode( 0, $hash );
my $compressed = $rr->encode( length $predecessor, $hash );
ok( length $compressed == length $predecessor, 'encoded RDATA not compressible' );
is( $rr->encode, $lc->encode, 'encoded RDATA names downcased' );
is( $rr->canonical, $lc->encode, 'canonical RDATA names downcased' );
}
{
my $rr = new Net::DNS::RR(". $type");
foreach ( @attr, 'rdstring' ) {
ok( !$rr->$_(), "'$_' attribute of empty RR undefined" );
}
}
{
my $rr = new Net::DNS::RR(". $type @data");
my $class = ref($rr);
$rr->algorithm(255);
is( $rr->algorithm(), 255, 'algorithm number accepted' );
$rr->algorithm('RSASHA1');
is( $rr->algorithm(), 5, 'algorithm mnemonic accepted' );
is( $rr->algorithm('MNEMONIC'), 'RSASHA1', 'rr->algorithm("MNEMONIC") returns mnemonic' );
is( $rr->algorithm(), 5, 'rr->algorithm("MNEMONIC") preserves value' );
eval { $rr->algorithm('X'); };
my $exception = $1 if $@ =~ /^(.+)\n/;
ok( $exception ||= '', "unknown mnemonic\t[$exception]" );
is( $class->algorithm('RSASHA256'), 8, 'class method algorithm("RSASHA256")' );
is( $class->algorithm(8), 'RSASHA256', 'class method algorithm(8)' );
is( $class->algorithm(255), 255, 'class method algorithm(255)' );
}
{
my $object = new Net::DNS::RR( type => $type );
my $class = ref($object);
my $scalar = '';
my %testcase = ( ## test callable with invalid arguments
'_CreateSig' => [$object, $scalar, $object],
'_CreateSigData' => [$object, $scalar],
'_string2time' => [undef],
'_time2string' => [undef],
'_VerifySig' => [$object, $object, $object],
'create' => [$class, $scalar, $object],
'verify' => [$object, $object, $object],
);
foreach my $method ( sort keys %testcase ) {
my $arglist = $testcase{$method};
$object->{algorithm} = 0; # induce exception
no strict q/refs/;
my $subroutine = join '::', $class, $method;
eval { &$subroutine(@$arglist); };
my $exception = $1 if $@ =~ /^(.*)\n*/;
ok( defined $exception, "$method method callable\t[$exception]" );
}
}
{
my %testcase = ( ## test time conversion edge cases
-1 => '21060207062815',
0x00000000 => '19700101000000',
0x7fffffff => '20380119031407',
0x80000000 => '20380119031408',
0xf4d41f7f => '21000228235959',
0xf4d41f80 => '21000301000000',
0xffffffff => '21060207062815',
);
foreach my $time ( sort keys %testcase ) {
my $string = $testcase{$time};
my $result = Net::DNS::RR::RRSIG::_time2string($time);
is( $result, $string, "_time2string($time)" );
# Test indirectly: $timeval can be 64-bit or negative 32-bit integer
my $timeval = Net::DNS::RR::RRSIG::_string2time($string);
my $timestr = Net::DNS::RR::RRSIG::_time2string($timeval);
is( $timestr, $string, "_string2time($string)" );
}
my $timenow = time();
my $timeval = Net::DNS::RR::RRSIG::_string2time($timenow);
is( $timeval, $timenow, "_string2time( time() )\t$timeval" );
}
{
ok( Net::DNS::RR::RRSIG::_ordered( undef, 0 ), '_ordered( undef, 0 )' );
ok( Net::DNS::RR::RRSIG::_ordered( 0, 1 ), '_ordered( 0, 1 )' );
ok( Net::DNS::RR::RRSIG::_ordered( 0x7fffffff, 0x80000000 ), '_ordered( 0x7fffffff, 0x80000000 )' );
ok( Net::DNS::RR::RRSIG::_ordered( 0xffffffff, 0 ), '_ordered( 0xffffffff, 0 )' );
ok( Net::DNS::RR::RRSIG::_ordered( -2, -1 ), '_ordered( -2, -1 )' );
ok( Net::DNS::RR::RRSIG::_ordered( -1, 0 ), '_ordered( -1, 0 )' );
ok( !Net::DNS::RR::RRSIG::_ordered( undef, undef ), '!_ordered( undef, undef )' );
ok( !Net::DNS::RR::RRSIG::_ordered( 0, undef ), '!_ordered( 0, undef )' );
ok( !Net::DNS::RR::RRSIG::_ordered( 0x80000000, 0x7fffffff ), '!_ordered( 0x80000000, 0x7fffffff )' );
ok( !Net::DNS::RR::RRSIG::_ordered( 0, 0xffffffff ), '!_ordered( 0, 0xffffffff )' );
ok( !Net::DNS::RR::RRSIG::_ordered( -1, -2 ), '!_ordered( -1, -2 )' );
ok( !Net::DNS::RR::RRSIG::_ordered( 0, -1 ), '!_ordered( 0, -1 )' );
}
{
my $rr = new Net::DNS::RR("$name $type @data");
$rr->print;
}
exit;
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