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|
use strict;
use warnings;
use IO::Socket::SSL;
use IO::Socket::SSL::Utils;
use Test::More;
do './testlib.pl' || do './t/testlib.pl' || die "no testlib";
$|=1;
plan skip_all => 'no support for session ticket key callback'
if ! IO::Socket::SSL->can_ticket_keycb;
plan tests => 6;
# create two servers with the same session ticket callback
my (@server,@saddr);
for (1,2) {
my $server = IO::Socket::INET->new(
LocalAddr => '127.0.0.1',
LocalPort => 0,
Listen => 2,
) or die "failed to create listener: $!";
push @server,{ fd => $server };
push @saddr, $server->sockhost.':'.$server->sockport;
diag("listen at $saddr[-1]");
}
# create some self signed certificate
my ($cert,$key) = CERT_create(CA => 1,
subject => { CN => 'ca' },
);
my ($client_cert,$client_key) = CERT_create(
issuer => [ $cert,$key],
subject => { CN => 'client' },
purpose => { client => 1 }
);
my ($server_cert,$server_key) = CERT_create(
issuer => [ $cert,$key],
subject => { CN => 'server' },
subjectAltNames => [
[ DNS => 'server' ],
[ IP => $saddr[0]=~m{^(.*):} && $1 ],
[ IP => $saddr[1]=~m{^(.*):} && $1 ],
],
purpose => { server => 1 }
);
defined( my $pid = fork() ) || die $!;
exit(_server()) if ! $pid;
@server = ();
# if anything blocks - this will at least finish the test
alarm(60);
$SIG{ALRM} = sub { die "test takes too long" };
END{ kill 9,$pid if $pid };
my $clctx = IO::Socket::SSL::SSL_Context->new(
SSL_session_cache_size => 10,
SSL_cert => $client_cert,
SSL_key => $client_key,
SSL_ca => [ $cert ],
# LibreSSL has currently no support for TLS 1.3 session handling
# therefore enforce TLS 1.2
Net::SSLeay::constant("LIBRESSL_VERSION_NUMBER") ?
(SSL_version => 'TLSv1_2') :
# versions of Net::SSLeay with support for SESSION_up_ref have also the
# other functionality needed for proper TLS 1.3 session handling
defined(&Net::SSLeay::SESSION_up_ref) ? ()
: (SSL_version => 'SSLv23:!TLSv1_3:!SSLv3:!SSLv2'),
);
my $client = sub {
my ($i,$expect_reuse,$desc) = @_;
my $cl = IO::Socket::SSL->new(
PeerAddr => $saddr[$i],
SSL_reuse_ctx => $clctx,
SSL_session_key => 'server', # single key for both @saddr
);
<$cl>; # read something, incl. TLS 1.3 ticket
my $reuse = $cl && Net::SSLeay::session_reused($cl->_get_ssl_object);
diag("connect to $i: ". ($cl
? "success reuse=$reuse version=".$cl->get_sslversion()
: "error: $!,$SSL_ERROR"
));
is($reuse,$expect_reuse,$desc);
close($cl);
};
$client->(0,0,"no initial session -> no reuse");
$client->(0,1,"reuse with the next session and secret[0]");
$client->(1,1,"reuse even though server changed, since they share ticket secret");
$client->(1,0,"reports non-reuse since server1 changed secret to secret[1]");
$client->(0,0,"reports non-reuse on server0 since got ticket with secret[1] in last step");
$client->(0,1,"reuse again since got ticket with secret[0] in last step");
sub _server {
# create the secrets for handling session tickets
my @secrets;
for(qw(key1 key2)) {
my $name = pack("a16",$_);
Net::SSLeay::RAND_bytes(my $key,32);
push @secrets, [ $key,$name ];
}
my $get_ticket_key = sub {
my (undef,$name) = @_;
if (!defined $name) {
print "creating new ticket $secrets[0][1]\n";
return @{$secrets[0]};
}
for(my $i=0;$i<@secrets;$i++) {
next if $secrets[$i][1] ne $name;
if ($i == 0) {
print "using current ticket secret\n";
return @{$secrets[0]};
} else {
print "using non-current ticket secret\n";
return ($secrets[0][0],$secrets[$i][1]);
}
}
print "unknown ticket key name\n";
return;
};
# create the SSL context
for(@server) {
$_->{sslctx} = IO::Socket::SSL::SSL_Context->new(
SSL_server => 1,
SSL_cert => $server_cert,
SSL_key => $server_key,
SSL_ca => [ $cert ],
SSL_verify_mode => SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
SSL_ticket_keycb => $get_ticket_key,
SSL_session_id_context => 'foobar',
) or die "failed to create SSL context: $SSL_ERROR";
}
my $rin = '';
vec($rin,fileno($_->{fd}),1) = 1 for @server;
while (1) {
select(my $rout = $rin,undef,undef,10)
or die "select failed or timed out: $!";
for(my $i=0;$i<@server;$i++) {
next if ! vec($rout,fileno($server[$i]{fd}),1);
alarm(10);
local $SIG{ALRM} = sub { die "server[$i] timed out" };
print "access to server[$i]\n";
my $cl = $server[$i]{fd}->accept or do {
print "failed to TCP accept: $!\n";
last;
};
IO::Socket::SSL->start_SSL($cl,
SSL_server => 1,
SSL_reuse_ctx => $server[$i]{sslctx}
) or do {
print "failed to SSL accept: $SSL_ERROR\n";
last;
};
print $cl "hi\n";
my $reuse = Net::SSLeay::session_reused($cl->_get_ssl_object);
print "server[$i] reused=$reuse\n";
# after access to server[1] rotate the secrets
if ($i == 1) {
print "rotate secrets\n";
push @secrets, shift(@secrets);
}
close($cl);
alarm(0);
last;
}
}
exit(0);
}
|
