ceph/src/boost/libs/asio/include/boost/asio/ssl/context_base.hpp

   1 //
   2 // ssl/context_base.hpp
   3 // ~~~~~~~~~~~~~~~~~~~~
   4 //
   5 // Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   9 //
  10
  11 #ifndef BOOST_ASIO_SSL_CONTEXT_BASE_HPP
  12 #define BOOST_ASIO_SSL_CONTEXT_BASE_HPP
  13
  14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  15 # pragma once
  16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  17
  18 #include <boost/asio/detail/config.hpp>
  19 #include <boost/asio/ssl/detail/openssl_types.hpp>
  20
  21 #include <boost/asio/detail/push_options.hpp>
  22
  23 namespace boost {
  24 namespace asio {
  25 namespace ssl {
  26
  27 /// The context_base class is used as a base for the basic_context class
  28 /// template so that we have a common place to define various enums.
  29 class context_base
  30 {
  31 public:
  32   /// Different methods supported by a context.
  33   enum method
  34   {
  35     /// Generic SSL version 2.
  36     sslv2,
  37
  38     /// SSL version 2 client.
  39     sslv2_client,
  40
  41     /// SSL version 2 server.
  42     sslv2_server,
  43
  44     /// Generic SSL version 3.
  45     sslv3,
  46
  47     /// SSL version 3 client.
  48     sslv3_client,
  49
  50     /// SSL version 3 server.
  51     sslv3_server,
  52
  53     /// Generic TLS version 1.
  54     tlsv1,
  55
  56     /// TLS version 1 client.
  57     tlsv1_client,
  58
  59     /// TLS version 1 server.
  60     tlsv1_server,
  61
  62     /// Generic SSL/TLS.
  63     sslv23,
  64
  65     /// SSL/TLS client.
  66     sslv23_client,
  67
  68     /// SSL/TLS server.
  69     sslv23_server,
  70
  71     /// Generic TLS version 1.1.
  72     tlsv11,
  73
  74     /// TLS version 1.1 client.
  75     tlsv11_client,
  76
  77     /// TLS version 1.1 server.
  78     tlsv11_server,
  79
  80     /// Generic TLS version 1.2.
  81     tlsv12,
  82
  83     /// TLS version 1.2 client.
  84     tlsv12_client,
  85
  86     /// TLS version 1.2 server.
  87     tlsv12_server
  88   };
  89
  90   /// Bitmask type for SSL options.
  91   typedef long options;
  92
  93 #if defined(GENERATING_DOCUMENTATION)
  94   /// Implement various bug workarounds.
  95   static const long default_workarounds = implementation_defined;
  96
  97   /// Always create a new key when using tmp_dh parameters.
  98   static const long single_dh_use = implementation_defined;
  99
 100   /// Disable SSL v2.
 101   static const long no_sslv2 = implementation_defined;
 102
 103   /// Disable SSL v3.
 104   static const long no_sslv3 = implementation_defined;
 105
 106   /// Disable TLS v1.
 107   static const long no_tlsv1 = implementation_defined;
 108
 109   /// Disable TLS v1.1.
 110   static const long no_tlsv1_1 = implementation_defined;
 111
 112   /// Disable TLS v1.2.
 113   static const long no_tlsv1_2 = implementation_defined;
 114
 115   /// Disable compression. Compression is disabled by default.
 116   static const long no_compression = implementation_defined;
 117 #else
 118   BOOST_ASIO_STATIC_CONSTANT(long, default_workarounds = SSL_OP_ALL);
 119   BOOST_ASIO_STATIC_CONSTANT(long, single_dh_use = SSL_OP_SINGLE_DH_USE);
 120   BOOST_ASIO_STATIC_CONSTANT(long, no_sslv2 = SSL_OP_NO_SSLv2);
 121   BOOST_ASIO_STATIC_CONSTANT(long, no_sslv3 = SSL_OP_NO_SSLv3);
 122   BOOST_ASIO_STATIC_CONSTANT(long, no_tlsv1 = SSL_OP_NO_TLSv1);
 123 # if defined(SSL_OP_NO_TLSv1_1)
 124   BOOST_ASIO_STATIC_CONSTANT(long, no_tlsv1_1 = SSL_OP_NO_TLSv1_1);
 125 # else // defined(SSL_OP_NO_TLSv1_1)
 126   BOOST_ASIO_STATIC_CONSTANT(long, no_tlsv1_1 = 0x10000000L);
 127 # endif // defined(SSL_OP_NO_TLSv1_1)
 128 # if defined(SSL_OP_NO_TLSv1_2)
 129   BOOST_ASIO_STATIC_CONSTANT(long, no_tlsv1_2 = SSL_OP_NO_TLSv1_2);
 130 # else // defined(SSL_OP_NO_TLSv1_2)
 131   BOOST_ASIO_STATIC_CONSTANT(long, no_tlsv1_2 = 0x08000000L);
 132 # endif // defined(SSL_OP_NO_TLSv1_2)
 133 # if defined(SSL_OP_NO_COMPRESSION)
 134   BOOST_ASIO_STATIC_CONSTANT(long, no_compression = SSL_OP_NO_COMPRESSION);
 135 # else // defined(SSL_OP_NO_COMPRESSION)
 136   BOOST_ASIO_STATIC_CONSTANT(long, no_compression = 0x20000L);
 137 # endif // defined(SSL_OP_NO_COMPRESSION)
 138 #endif
 139
 140   /// File format types.
 141   enum file_format
 142   {
 143     /// ASN.1 file.
 144     asn1,
 145
 146     /// PEM file.
 147     pem
 148   };
 149
 150 #if !defined(GENERATING_DOCUMENTATION)
 151   // The following types and constants are preserved for backward compatibility.
 152   // New programs should use the equivalents of the same names that are defined
 153   // in the boost::asio::ssl namespace.
 154   typedef int verify_mode;
 155   BOOST_ASIO_STATIC_CONSTANT(int, verify_none = SSL_VERIFY_NONE);
 156   BOOST_ASIO_STATIC_CONSTANT(int, verify_peer = SSL_VERIFY_PEER);
 157   BOOST_ASIO_STATIC_CONSTANT(int,
 158       verify_fail_if_no_peer_cert = SSL_VERIFY_FAIL_IF_NO_PEER_CERT);
 159   BOOST_ASIO_STATIC_CONSTANT(int, verify_client_once = SSL_VERIFY_CLIENT_ONCE);
 160 #endif
 161
 162   /// Purpose of PEM password.
 163   enum password_purpose
 164   {
 165     /// The password is needed for reading/decryption.
 166     for_reading,
 167
 168     /// The password is needed for writing/encryption.
 169     for_writing
 170   };
 171
 172 protected:
 173   /// Protected destructor to prevent deletion through this type.
 174   ~context_base()
 175   {
 176   }
 177 };
 178
 179 } // namespace ssl
 180 } // namespace asio
 181 } // namespace boost
 182
 183 #include <boost/asio/detail/pop_options.hpp>
 184
 185 #endif // BOOST_ASIO_SSL_CONTEXT_BASE_HPP