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//
// ssl/context_base.hpp
// ~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_SSL_CONTEXT_BASE_HPP
#define BOOST_ASIO_SSL_CONTEXT_BASE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/asio/ssl/detail/openssl_types.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace ssl {
/// The context_base class is used as a base for the basic_context class
/// template so that we have a common place to define various enums.
class context_base
{
public:
/// Different methods supported by a context.
enum method
{
/// Generic SSL version 2.
sslv2,
/// SSL version 2 client.
sslv2_client,
/// SSL version 2 server.
sslv2_server,
/// Generic SSL version 3.
sslv3,
/// SSL version 3 client.
sslv3_client,
/// SSL version 3 server.
sslv3_server,
/// Generic TLS version 1.
tlsv1,
/// TLS version 1 client.
tlsv1_client,
/// TLS version 1 server.
tlsv1_server,
/// Generic SSL/TLS.
sslv23,
/// SSL/TLS client.
sslv23_client,
/// SSL/TLS server.
sslv23_server
};
/// Bitmask type for SSL options.
typedef int options;
#if defined(GENERATING_DOCUMENTATION)
/// Implement various bug workarounds.
static const int default_workarounds = implementation_defined;
/// Always create a new key when using tmp_dh parameters.
static const int single_dh_use = implementation_defined;
/// Disable SSL v2.
static const int no_sslv2 = implementation_defined;
/// Disable SSL v3.
static const int no_sslv3 = implementation_defined;
/// Disable TLS v1.
static const int no_tlsv1 = implementation_defined;
#else
BOOST_STATIC_CONSTANT(int, default_workarounds = SSL_OP_ALL);
BOOST_STATIC_CONSTANT(int, single_dh_use = SSL_OP_SINGLE_DH_USE);
BOOST_STATIC_CONSTANT(int, no_sslv2 = SSL_OP_NO_SSLv2);
BOOST_STATIC_CONSTANT(int, no_sslv3 = SSL_OP_NO_SSLv3);
BOOST_STATIC_CONSTANT(int, no_tlsv1 = SSL_OP_NO_TLSv1);
#endif
/// File format types.
enum file_format
{
/// ASN.1 file.
asn1,
/// PEM file.
pem
};
#if !defined(GENERATING_DOCUMENTATION)
// The following types and constants are preserved for backward compatibility.
// New programs should use the equivalents of the same names that are defined
// in the boost::asio::ssl namespace.
typedef int verify_mode;
BOOST_STATIC_CONSTANT(int, verify_none = SSL_VERIFY_NONE);
BOOST_STATIC_CONSTANT(int, verify_peer = SSL_VERIFY_PEER);
BOOST_STATIC_CONSTANT(int,
verify_fail_if_no_peer_cert = SSL_VERIFY_FAIL_IF_NO_PEER_CERT);
BOOST_STATIC_CONSTANT(int, verify_client_once = SSL_VERIFY_CLIENT_ONCE);
#endif
/// Purpose of PEM password.
enum password_purpose
{
/// The password is needed for reading/decryption.
for_reading,
/// The password is needed for writing/encryption.
for_writing
};
protected:
/// Protected destructor to prevent deletion through this type.
~context_base()
{
}
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
private:
// Workaround to enable the empty base optimisation with Borland C++.
char dummy_;
#endif
};
} // namespace ssl
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_SSL_CONTEXT_BASE_HPP
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