528 lines
13 KiB
C++
528 lines
13 KiB
C++
//
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// ssl/impl/context.ipp
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// ~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2005 Voipster / Indrek dot Juhani at voipster dot com
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// Copyright (c) 2005-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_ASIO_SSL_IMPL_CONTEXT_IPP
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#define BOOST_ASIO_SSL_IMPL_CONTEXT_IPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#if !defined(BOOST_ASIO_ENABLE_OLD_SSL)
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# include <cstring>
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# include <boost/asio/detail/throw_error.hpp>
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# include <boost/asio/error.hpp>
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# include <boost/asio/ssl/context.hpp>
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# include <boost/asio/ssl/error.hpp>
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#endif // !defined(BOOST_ASIO_ENABLE_OLD_SSL)
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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namespace ssl {
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#if !defined(BOOST_ASIO_ENABLE_OLD_SSL)
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context::context(context::method m)
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: handle_(0)
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{
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switch (m)
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{
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#if defined(OPENSSL_NO_SSL2)
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case context::sslv2:
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case context::sslv2_client:
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case context::sslv2_server:
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boost::asio::detail::throw_error(
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boost::asio::error::invalid_argument, "context");
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break;
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#else // defined(OPENSSL_NO_SSL2)
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case context::sslv2:
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handle_ = ::SSL_CTX_new(::SSLv2_method());
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break;
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case context::sslv2_client:
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handle_ = ::SSL_CTX_new(::SSLv2_client_method());
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break;
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case context::sslv2_server:
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handle_ = ::SSL_CTX_new(::SSLv2_server_method());
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break;
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#endif // defined(OPENSSL_NO_SSL2)
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case context::sslv3:
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handle_ = ::SSL_CTX_new(::SSLv3_method());
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break;
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case context::sslv3_client:
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handle_ = ::SSL_CTX_new(::SSLv3_client_method());
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break;
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case context::sslv3_server:
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handle_ = ::SSL_CTX_new(::SSLv3_server_method());
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break;
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case context::tlsv1:
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handle_ = ::SSL_CTX_new(::TLSv1_method());
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break;
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case context::tlsv1_client:
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handle_ = ::SSL_CTX_new(::TLSv1_client_method());
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break;
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case context::tlsv1_server:
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handle_ = ::SSL_CTX_new(::TLSv1_server_method());
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break;
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case context::sslv23:
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handle_ = ::SSL_CTX_new(::SSLv23_method());
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break;
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case context::sslv23_client:
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handle_ = ::SSL_CTX_new(::SSLv23_client_method());
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break;
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case context::sslv23_server:
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handle_ = ::SSL_CTX_new(::SSLv23_server_method());
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break;
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default:
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handle_ = ::SSL_CTX_new(0);
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break;
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}
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if (handle_ == 0)
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{
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boost::system::error_code ec(::ERR_get_error(),
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boost::asio::error::get_ssl_category());
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boost::asio::detail::throw_error(ec, "context");
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}
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}
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context::context(boost::asio::io_service&, context::method m)
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: handle_(0)
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{
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context tmp(m);
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handle_ = tmp.handle_;
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tmp.handle_ = 0;
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}
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#if defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
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context::context(context&& other)
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{
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handle_ = other.handle_;
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other.handle_ = 0;
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}
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context& context::operator=(context&& other)
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{
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context tmp(BOOST_ASIO_MOVE_CAST(context)(*this));
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handle_ = other.handle_;
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other.handle_ = 0;
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return *this;
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}
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#endif // defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
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context::~context()
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{
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if (handle_)
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{
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if (handle_->default_passwd_callback_userdata)
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{
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detail::password_callback_base* callback =
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static_cast<detail::password_callback_base*>(
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handle_->default_passwd_callback_userdata);
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delete callback;
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handle_->default_passwd_callback_userdata = 0;
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}
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if (SSL_CTX_get_app_data(handle_))
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{
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detail::verify_callback_base* callback =
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static_cast<detail::verify_callback_base*>(
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SSL_CTX_get_app_data(handle_));
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delete callback;
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SSL_CTX_set_app_data(handle_, 0);
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}
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::SSL_CTX_free(handle_);
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}
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}
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context::native_handle_type context::native_handle()
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{
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return handle_;
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}
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context::impl_type context::impl()
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{
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return handle_;
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}
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void context::set_options(context::options o)
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{
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boost::system::error_code ec;
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set_options(o, ec);
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boost::asio::detail::throw_error(ec, "set_options");
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}
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boost::system::error_code context::set_options(
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context::options o, boost::system::error_code& ec)
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{
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::SSL_CTX_set_options(handle_, o);
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ec = boost::system::error_code();
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return ec;
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}
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void context::set_verify_mode(verify_mode v)
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{
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boost::system::error_code ec;
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set_verify_mode(v, ec);
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boost::asio::detail::throw_error(ec, "set_verify_mode");
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}
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boost::system::error_code context::set_verify_mode(
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verify_mode v, boost::system::error_code& ec)
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{
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::SSL_CTX_set_verify(handle_, v, ::SSL_CTX_get_verify_callback(handle_));
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ec = boost::system::error_code();
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return ec;
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}
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void context::load_verify_file(const std::string& filename)
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{
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boost::system::error_code ec;
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load_verify_file(filename, ec);
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boost::asio::detail::throw_error(ec, "load_verify_file");
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}
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boost::system::error_code context::load_verify_file(
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const std::string& filename, boost::system::error_code& ec)
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{
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if (::SSL_CTX_load_verify_locations(handle_, filename.c_str(), 0) != 1)
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{
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ec = boost::system::error_code(::ERR_get_error(),
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boost::asio::error::get_ssl_category());
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return ec;
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}
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ec = boost::system::error_code();
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return ec;
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}
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void context::set_default_verify_paths()
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{
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boost::system::error_code ec;
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set_default_verify_paths(ec);
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boost::asio::detail::throw_error(ec, "set_default_verify_paths");
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}
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boost::system::error_code context::set_default_verify_paths(
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boost::system::error_code& ec)
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{
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if (::SSL_CTX_set_default_verify_paths(handle_) != 1)
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{
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ec = boost::system::error_code(::ERR_get_error(),
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boost::asio::error::get_ssl_category());
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return ec;
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}
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ec = boost::system::error_code();
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return ec;
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}
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void context::add_verify_path(const std::string& path)
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{
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boost::system::error_code ec;
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add_verify_path(path, ec);
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boost::asio::detail::throw_error(ec, "add_verify_path");
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}
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boost::system::error_code context::add_verify_path(
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const std::string& path, boost::system::error_code& ec)
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{
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if (::SSL_CTX_load_verify_locations(handle_, 0, path.c_str()) != 1)
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{
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ec = boost::system::error_code(::ERR_get_error(),
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boost::asio::error::get_ssl_category());
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return ec;
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}
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ec = boost::system::error_code();
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return ec;
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}
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void context::use_certificate_file(
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const std::string& filename, file_format format)
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{
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boost::system::error_code ec;
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use_certificate_file(filename, format, ec);
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boost::asio::detail::throw_error(ec, "use_certificate_file");
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}
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boost::system::error_code context::use_certificate_file(
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const std::string& filename, file_format format,
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boost::system::error_code& ec)
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{
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int file_type;
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switch (format)
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{
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case context_base::asn1:
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file_type = SSL_FILETYPE_ASN1;
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break;
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case context_base::pem:
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file_type = SSL_FILETYPE_PEM;
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break;
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default:
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{
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ec = boost::asio::error::invalid_argument;
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return ec;
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}
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}
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if (::SSL_CTX_use_certificate_file(handle_, filename.c_str(), file_type) != 1)
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{
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ec = boost::system::error_code(::ERR_get_error(),
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boost::asio::error::get_ssl_category());
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return ec;
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}
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ec = boost::system::error_code();
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return ec;
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}
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void context::use_certificate_chain_file(const std::string& filename)
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{
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boost::system::error_code ec;
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use_certificate_chain_file(filename, ec);
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boost::asio::detail::throw_error(ec, "use_certificate_chain_file");
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}
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boost::system::error_code context::use_certificate_chain_file(
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const std::string& filename, boost::system::error_code& ec)
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{
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if (::SSL_CTX_use_certificate_chain_file(handle_, filename.c_str()) != 1)
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{
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ec = boost::system::error_code(::ERR_get_error(),
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boost::asio::error::get_ssl_category());
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return ec;
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}
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ec = boost::system::error_code();
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return ec;
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}
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void context::use_private_key_file(
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const std::string& filename, context::file_format format)
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{
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boost::system::error_code ec;
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use_private_key_file(filename, format, ec);
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boost::asio::detail::throw_error(ec, "use_private_key_file");
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}
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boost::system::error_code context::use_private_key_file(
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const std::string& filename, context::file_format format,
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boost::system::error_code& ec)
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{
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int file_type;
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switch (format)
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{
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case context_base::asn1:
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file_type = SSL_FILETYPE_ASN1;
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break;
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case context_base::pem:
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file_type = SSL_FILETYPE_PEM;
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break;
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default:
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{
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ec = boost::asio::error::invalid_argument;
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return ec;
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}
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}
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if (::SSL_CTX_use_PrivateKey_file(handle_, filename.c_str(), file_type) != 1)
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{
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ec = boost::system::error_code(::ERR_get_error(),
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boost::asio::error::get_ssl_category());
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return ec;
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}
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ec = boost::system::error_code();
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return ec;
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}
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void context::use_rsa_private_key_file(
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const std::string& filename, context::file_format format)
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{
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boost::system::error_code ec;
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use_rsa_private_key_file(filename, format, ec);
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boost::asio::detail::throw_error(ec, "use_rsa_private_key_file");
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}
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boost::system::error_code context::use_rsa_private_key_file(
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const std::string& filename, context::file_format format,
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boost::system::error_code& ec)
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{
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int file_type;
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switch (format)
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{
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case context_base::asn1:
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file_type = SSL_FILETYPE_ASN1;
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break;
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case context_base::pem:
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file_type = SSL_FILETYPE_PEM;
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break;
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default:
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{
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ec = boost::asio::error::invalid_argument;
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return ec;
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}
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}
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if (::SSL_CTX_use_RSAPrivateKey_file(
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handle_, filename.c_str(), file_type) != 1)
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{
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ec = boost::system::error_code(::ERR_get_error(),
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boost::asio::error::get_ssl_category());
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return ec;
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}
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ec = boost::system::error_code();
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return ec;
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}
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void context::use_tmp_dh_file(const std::string& filename)
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{
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boost::system::error_code ec;
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use_tmp_dh_file(filename, ec);
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boost::asio::detail::throw_error(ec, "use_tmp_dh_file");
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}
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boost::system::error_code context::use_tmp_dh_file(
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const std::string& filename, boost::system::error_code& ec)
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{
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::BIO* bio = ::BIO_new_file(filename.c_str(), "r");
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if (!bio)
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{
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ec = boost::asio::error::invalid_argument;
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return ec;
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}
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::DH* dh = ::PEM_read_bio_DHparams(bio, 0, 0, 0);
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if (!dh)
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{
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::BIO_free(bio);
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ec = boost::asio::error::invalid_argument;
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return ec;
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}
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::BIO_free(bio);
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int result = ::SSL_CTX_set_tmp_dh(handle_, dh);
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::DH_free(dh);
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if (result != 1)
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{
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ec = boost::system::error_code(::ERR_get_error(),
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boost::asio::error::get_ssl_category());
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return ec;
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}
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ec = boost::system::error_code();
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return ec;
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}
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boost::system::error_code context::do_set_verify_callback(
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detail::verify_callback_base* callback, boost::system::error_code& ec)
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{
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if (SSL_CTX_get_app_data(handle_))
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{
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delete static_cast<detail::verify_callback_base*>(
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SSL_CTX_get_app_data(handle_));
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}
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SSL_CTX_set_app_data(handle_, callback);
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::SSL_CTX_set_verify(handle_,
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::SSL_CTX_get_verify_mode(handle_),
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&context::verify_callback_function);
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ec = boost::system::error_code();
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return ec;
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}
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int context::verify_callback_function(int preverified, X509_STORE_CTX* ctx)
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{
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if (ctx)
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{
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if (SSL* ssl = static_cast<SSL*>(
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::X509_STORE_CTX_get_ex_data(
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ctx, ::SSL_get_ex_data_X509_STORE_CTX_idx())))
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{
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if (SSL_CTX* handle = ::SSL_get_SSL_CTX(ssl))
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{
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if (SSL_CTX_get_app_data(handle))
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{
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detail::verify_callback_base* callback =
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static_cast<detail::verify_callback_base*>(
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SSL_CTX_get_app_data(handle));
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verify_context verify_ctx(ctx);
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return callback->call(preverified != 0, verify_ctx) ? 1 : 0;
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}
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}
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}
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}
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return 0;
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}
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boost::system::error_code context::do_set_password_callback(
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detail::password_callback_base* callback, boost::system::error_code& ec)
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{
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if (handle_->default_passwd_callback_userdata)
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delete static_cast<detail::password_callback_base*>(
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handle_->default_passwd_callback_userdata);
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handle_->default_passwd_callback_userdata = callback;
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SSL_CTX_set_default_passwd_cb(handle_, &context::password_callback_function);
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ec = boost::system::error_code();
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return ec;
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}
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int context::password_callback_function(
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char* buf, int size, int purpose, void* data)
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{
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using namespace std; // For strncat and strlen.
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if (data)
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{
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detail::password_callback_base* callback =
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static_cast<detail::password_callback_base*>(data);
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std::string passwd = callback->call(static_cast<std::size_t>(size),
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purpose ? context_base::for_writing : context_base::for_reading);
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#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE)
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strcpy_s(buf, size, passwd.c_str());
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#else
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*buf = '\0';
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strncat(buf, passwd.c_str(), size);
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#endif
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return strlen(buf);
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}
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return 0;
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}
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#endif // !defined(BOOST_ASIO_ENABLE_OLD_SSL)
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} // namespace ssl
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#endif // BOOST_ASIO_SSL_IMPL_CONTEXT_IPP
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