1 # Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
3 # Licensed under the OpenSSL license (the "License"). You may not use
4 # this file except in compliance with the License. You can obtain a copy
5 # in the file LICENSE in the source distribution or at
6 # https://www.openssl.org/source/license.html
10 package TLSProxy::HelloRetryRequest;
13 push @ISA, 'TLSProxy::Message';
22 $message_frag_lens) = @_;
24 my $self = $class->SUPER::new(
26 TLSProxy::Message::MT_HELLO_RETRY_REQUEST,
32 $self->{extension_data} = "";
42 TLSProxy::Proxy->is_tls13(1);
44 my ($server_version) = unpack('n', $self->data);
45 # TODO(TLS1.3): Replace this reference to draft version before release
46 if ($server_version == TLSProxy::Record::VERS_TLS_1_3_DRAFT) {
47 $server_version = TLSProxy::Record::VERS_TLS_1_3;
50 my $ciphersuite = unpack('n', substr($self->data, $ptr));
53 my $extensions_len = unpack('n', substr($self->data, $ptr));
54 if (!defined $extensions_len) {
60 if ($extensions_len != 0) {
61 $extension_data = substr($self->data, $ptr);
63 if (length($extension_data) != $extensions_len) {
64 die "Invalid extension length\n";
67 if (length($self->data) != 2) {
68 die "Invalid extension length\n";
73 while (length($extension_data) >= 4) {
74 my ($type, $size) = unpack("nn", $extension_data);
75 my $extdata = substr($extension_data, 4, $size);
76 $extension_data = substr($extension_data, 4 + $size);
77 $extensions{$type} = $extdata;
80 $self->server_version($server_version);
81 $self->ciphersuite($ciphersuite);
82 $self->extension_data(\%extensions);
84 print " Extensions Len:".$extensions_len."\n";
87 #Reconstruct the on-the-wire message data following changes
88 sub set_message_contents
94 foreach my $key (keys %{$self->extension_data}) {
95 my $extdata = ${$self->extension_data}{$key};
96 $extensions .= pack("n", $key);
97 $extensions .= pack("n", length($extdata));
98 $extensions .= $extdata;
99 if ($key == TLSProxy::Message::EXT_DUPLICATE_EXTENSION) {
100 $extensions .= pack("n", $key);
101 $extensions .= pack("n", length($extdata));
102 $extensions .= $extdata;
106 $data = pack('n', $self->server_version);
107 $data .= pack('n', $self->ciphersuite);
108 $data .= pack('n', length($extensions));
109 $data .= $extensions;
113 #Read/write accessors
118 $self->{server_version} = shift;
120 return $self->{server_version};
126 $self->{ciphersuite} = shift;
128 return $self->{ciphersuite};
134 $self->{extension_data} = shift;
136 return $self->{extension_data};
140 my ($self, $ext_type, $ext_data) = @_;
141 $self->{extension_data}{$ext_type} = $ext_data;
145 my ($self, $ext_type) = @_;
146 delete $self->{extension_data}{$ext_type};