+++ /dev/null
-# Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
-#
-# Licensed under the OpenSSL license (the "License"). You may not use
-# this file except in compliance with the License. You can obtain a copy
-# in the file LICENSE in the source distribution or at
-# https://www.openssl.org/source/license.html
-
-use strict;
-
-package TLSProxy::ServerHello;
-
-use vars '@ISA';
-push @ISA, 'TLSProxy::Message';
-
-sub new
-{
- my $class = shift;
- my ($server,
- $data,
- $records,
- $startoffset,
- $message_frag_lens) = @_;
-
- my $self = $class->SUPER::new(
- $server,
- TLSProxy::Message::MT_SERVER_HELLO,
- $data,
- $records,
- $startoffset,
- $message_frag_lens);
-
- $self->{server_version} = 0;
- $self->{random} = [];
- $self->{session_id_len} = 0;
- $self->{session} = "";
- $self->{ciphersuite} = 0;
- $self->{comp_meth} = 0;
- $self->{extension_data} = "";
-
- return $self;
-}
-
-sub parse
-{
- my $self = shift;
- my $ptr = 2;
- my ($server_version) = unpack('n', $self->data);
-
- # TODO(TLS1.3): Replace this reference to draft version before release
- if ($server_version == TLSProxy::Record::VERS_TLS_1_3_DRAFT) {
- $server_version = TLSProxy::Record::VERS_TLS_1_3;
- TLSProxy::Proxy->is_tls13(1);
- }
-
- my $random = substr($self->data, $ptr, 32);
- $ptr += 32;
- my $session_id_len = 0;
- my $session = "";
- if (!TLSProxy::Proxy->is_tls13()) {
- $session_id_len = unpack('C', substr($self->data, $ptr));
- $ptr++;
- $session = substr($self->data, $ptr, $session_id_len);
- $ptr += $session_id_len;
- }
- my $ciphersuite = unpack('n', substr($self->data, $ptr));
- $ptr += 2;
- my $comp_meth = 0;
- if (!TLSProxy::Proxy->is_tls13()) {
- $comp_meth = unpack('C', substr($self->data, $ptr));
- $ptr++;
- }
- my $extensions_len = unpack('n', substr($self->data, $ptr));
- if (!defined $extensions_len) {
- $extensions_len = 0;
- } else {
- $ptr += 2;
- }
- #For now we just deal with this as a block of data. In the future we will
- #want to parse this
- my $extension_data;
- if ($extensions_len != 0) {
- $extension_data = substr($self->data, $ptr);
-
- if (length($extension_data) != $extensions_len) {
- die "Invalid extension length\n";
- }
- } else {
- if (length($self->data) != $ptr) {
- die "Invalid extension length\n";
- }
- $extension_data = "";
- }
- my %extensions = ();
- while (length($extension_data) >= 4) {
- my ($type, $size) = unpack("nn", $extension_data);
- my $extdata = substr($extension_data, 4, $size);
- $extension_data = substr($extension_data, 4 + $size);
- $extensions{$type} = $extdata;
- }
-
- $self->server_version($server_version);
- $self->random($random);
- $self->session_id_len($session_id_len);
- $self->session($session);
- $self->ciphersuite($ciphersuite);
- TLSProxy::Proxy->ciphersuite($ciphersuite);
- $self->comp_meth($comp_meth);
- $self->extension_data(\%extensions);
-
- $self->process_data();
-
- if (TLSProxy::Proxy->is_tls13()) {
- TLSProxy::Record->server_encrypting(1);
- TLSProxy::Record->client_encrypting(1);
- }
-
- print " Server Version:".$server_version."\n";
- print " Session ID Len:".$session_id_len."\n";
- print " Ciphersuite:".$ciphersuite."\n";
- print " Compression Method:".$comp_meth."\n";
- print " Extensions Len:".$extensions_len."\n";
-}
-
-#Perform any actions necessary based on the data we've seen
-sub process_data
-{
- my $self = shift;
-
- TLSProxy::Message->ciphersuite($self->ciphersuite);
-}
-
-#Reconstruct the on-the-wire message data following changes
-sub set_message_contents
-{
- my $self = shift;
- my $data;
- my $extensions = "";
-
- $data = pack('n', $self->server_version);
- $data .= $self->random;
- if (!TLSProxy::Proxy->is_tls13()) {
- $data .= pack('C', $self->session_id_len);
- $data .= $self->session;
- }
- $data .= pack('n', $self->ciphersuite);
- if (!TLSProxy::Proxy->is_tls13()) {
- $data .= pack('C', $self->comp_meth);
- }
-
- foreach my $key (keys %{$self->extension_data}) {
- my $extdata = ${$self->extension_data}{$key};
- $extensions .= pack("n", $key);
- $extensions .= pack("n", length($extdata));
- $extensions .= $extdata;
- if ($key == TLSProxy::Message::EXT_DUPLICATE_EXTENSION) {
- $extensions .= pack("n", $key);
- $extensions .= pack("n", length($extdata));
- $extensions .= $extdata;
- }
- }
-
- $data .= pack('n', length($extensions));
- $data .= $extensions;
- $self->data($data);
-}
-
-#Read/write accessors
-sub server_version
-{
- my $self = shift;
- if (@_) {
- $self->{server_version} = shift;
- }
- return $self->{server_version};
-}
-sub random
-{
- my $self = shift;
- if (@_) {
- $self->{random} = shift;
- }
- return $self->{random};
-}
-sub session_id_len
-{
- my $self = shift;
- if (@_) {
- $self->{session_id_len} = shift;
- }
- return $self->{session_id_len};
-}
-sub session
-{
- my $self = shift;
- if (@_) {
- $self->{session} = shift;
- }
- return $self->{session};
-}
-sub ciphersuite
-{
- my $self = shift;
- if (@_) {
- $self->{ciphersuite} = shift;
- }
- return $self->{ciphersuite};
-}
-sub comp_meth
-{
- my $self = shift;
- if (@_) {
- $self->{comp_meth} = shift;
- }
- return $self->{comp_meth};
-}
-sub extension_data
-{
- my $self = shift;
- if (@_) {
- $self->{extension_data} = shift;
- }
- return $self->{extension_data};
-}
-sub set_extension
-{
- my ($self, $ext_type, $ext_data) = @_;
- $self->{extension_data}{$ext_type} = $ext_data;
-}
-sub delete_extension
-{
- my ($self, $ext_type) = @_;
- delete $self->{extension_data}{$ext_type};
-}
-1;
projects / openssl.git / blobdiff