2 // ssl/context_base.hpp
3 // ~~~~~~~~~~~~~~~~~~~~
5 // Copyright (c) 2003-2017 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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)
11 #ifndef BOOST_ASIO_SSL_CONTEXT_BASE_HPP
12 #define BOOST_ASIO_SSL_CONTEXT_BASE_HPP
14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
18 #include <boost/asio/detail/config.hpp>
19 #include <boost/asio/ssl/detail/openssl_types.hpp>
21 #include <boost/asio/detail/push_options.hpp>
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.
32 /// Different methods supported by a context.
35 /// Generic SSL version 2.
38 /// SSL version 2 client.
41 /// SSL version 2 server.
44 /// Generic SSL version 3.
47 /// SSL version 3 client.
50 /// SSL version 3 server.
53 /// Generic TLS version 1.
56 /// TLS version 1 client.
59 /// TLS version 1 server.
71 /// Generic TLS version 1.1.
74 /// TLS version 1.1 client.
77 /// TLS version 1.1 server.
80 /// Generic TLS version 1.2.
83 /// TLS version 1.2 client.
86 /// TLS version 1.2 server.
99 /// Bitmask type for SSL options.
100 typedef long options;
102 #if defined(GENERATING_DOCUMENTATION)
103 /// Implement various bug workarounds.
104 static const long default_workarounds = implementation_defined;
106 /// Always create a new key when using tmp_dh parameters.
107 static const long single_dh_use = implementation_defined;
110 static const long no_sslv2 = implementation_defined;
113 static const long no_sslv3 = implementation_defined;
116 static const long no_tlsv1 = implementation_defined;
118 /// Disable TLS v1.1.
119 static const long no_tlsv1_1 = implementation_defined;
121 /// Disable TLS v1.2.
122 static const long no_tlsv1_2 = implementation_defined;
124 /// Disable compression. Compression is disabled by default.
125 static const long no_compression = implementation_defined;
127 BOOST_ASIO_STATIC_CONSTANT(long, default_workarounds = SSL_OP_ALL);
128 BOOST_ASIO_STATIC_CONSTANT(long, single_dh_use = SSL_OP_SINGLE_DH_USE);
129 BOOST_ASIO_STATIC_CONSTANT(long, no_sslv2 = SSL_OP_NO_SSLv2);
130 BOOST_ASIO_STATIC_CONSTANT(long, no_sslv3 = SSL_OP_NO_SSLv3);
131 BOOST_ASIO_STATIC_CONSTANT(long, no_tlsv1 = SSL_OP_NO_TLSv1);
132 # if defined(SSL_OP_NO_TLSv1_1)
133 BOOST_ASIO_STATIC_CONSTANT(long, no_tlsv1_1 = SSL_OP_NO_TLSv1_1);
134 # else // defined(SSL_OP_NO_TLSv1_1)
135 BOOST_ASIO_STATIC_CONSTANT(long, no_tlsv1_1 = 0x10000000L);
136 # endif // defined(SSL_OP_NO_TLSv1_1)
137 # if defined(SSL_OP_NO_TLSv1_2)
138 BOOST_ASIO_STATIC_CONSTANT(long, no_tlsv1_2 = SSL_OP_NO_TLSv1_2);
139 # else // defined(SSL_OP_NO_TLSv1_2)
140 BOOST_ASIO_STATIC_CONSTANT(long, no_tlsv1_2 = 0x08000000L);
141 # endif // defined(SSL_OP_NO_TLSv1_2)
142 # if defined(SSL_OP_NO_COMPRESSION)
143 BOOST_ASIO_STATIC_CONSTANT(long, no_compression = SSL_OP_NO_COMPRESSION);
144 # else // defined(SSL_OP_NO_COMPRESSION)
145 BOOST_ASIO_STATIC_CONSTANT(long, no_compression = 0x20000L);
146 # endif // defined(SSL_OP_NO_COMPRESSION)
149 /// File format types.
159 #if !defined(GENERATING_DOCUMENTATION)
160 // The following types and constants are preserved for backward compatibility.
161 // New programs should use the equivalents of the same names that are defined
162 // in the boost::asio::ssl namespace.
163 typedef int verify_mode;
164 BOOST_ASIO_STATIC_CONSTANT(int, verify_none = SSL_VERIFY_NONE);
165 BOOST_ASIO_STATIC_CONSTANT(int, verify_peer = SSL_VERIFY_PEER);
166 BOOST_ASIO_STATIC_CONSTANT(int,
167 verify_fail_if_no_peer_cert = SSL_VERIFY_FAIL_IF_NO_PEER_CERT);
168 BOOST_ASIO_STATIC_CONSTANT(int, verify_client_once = SSL_VERIFY_CLIENT_ONCE);
171 /// Purpose of PEM password.
172 enum password_purpose
174 /// The password is needed for reading/decryption.
177 /// The password is needed for writing/encryption.
182 /// Protected destructor to prevent deletion through this type.
192 #include <boost/asio/detail/pop_options.hpp>
194 #endif // BOOST_ASIO_SSL_CONTEXT_BASE_HPP