gloox  1.0.28
tlsopensslclient.cpp
1 /*
2  Copyright (c) 2005-2023 by Jakob Schröter <js@camaya.net>
3  This file is part of the gloox library. http://camaya.net/gloox
4 
5  This software is distributed under a license. The full license
6  agreement can be found in the file LICENSE in this distribution.
7  This software may not be copied, modified, sold or distributed
8  other than expressed in the named license agreement.
9 
10  This software is distributed without any warranty.
11 */
12 
13 
14 
15 #include "tlsopensslclient.h"
16 
17 #ifdef HAVE_OPENSSL
18 
19 namespace gloox
20 {
21 
22  OpenSSLClient::OpenSSLClient( TLSHandler* th, const std::string& server )
23  : OpenSSLBase( th, server )
24  {
25  }
26 
28  {
29  }
30 
31  bool OpenSSLClient::setType()
32  {
33  m_ctx = SSL_CTX_new( SSLv23_client_method() );
34  if( !m_ctx )
35  return false;
36 
37  SSL_CTX_set_options( m_ctx, SSL_OP_NO_SSLv3 );
38 
39  return true;
40  }
41 
43  {
44  return true;
45  }
46 
47  const std::string OpenSSLClient::channelBinding() const
48  {
49 
50  if( SSL_version( m_ssl ) == TLS1_3_VERSION )
51  {
52  unsigned char buf[32];
53  const char* const label = "EXPORTER-Channel-Binding";
54  SSL_export_keying_material( m_ssl, buf, 32, label, strlen( label ), { 0 }, 1, 0 );
55  return std::string( reinterpret_cast<char* const>( buf ), 32 );
56  }
57  else
58  {
59  unsigned char* buf[128];
60  long res = SSL_get_finished( m_ssl, buf, 128 );
61  return std::string( reinterpret_cast<char*>( buf ), res );
62  }
63  }
64 
65  const std::string OpenSSLClient::channelBindingType() const
66  {
67  if( SSL_version( m_ssl ) == TLS1_3_VERSION ) {
68  return "tls-exporter";
69  }
70  else
71  {
72  return "tls-unique";
73  }
74  }
75 
76  int OpenSSLClient::handshakeFunction()
77  {
78  return SSL_connect( m_ssl );
79  }
80 
81 }
82 
83 #endif // HAVE_OPENSSL
virtual const std::string channelBinding() const
virtual bool hasChannelBinding() const
virtual const std::string channelBindingType() const
OpenSSLClient(TLSHandler *th, const std::string &server)
An interface that allows for interacting with TLS implementations derived from TLSBase.
Definition: tlshandler.h:35
The namespace for the gloox library.
Definition: adhoc.cpp:28