vn-verdnaturachat/ios/Pods/boost-for-react-native/boost/asio/ssl/context.hpp

790 lines
28 KiB
C++

//
// ssl/context.hpp
// ~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2016 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_HPP
#define BOOST_ASIO_SSL_CONTEXT_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_ENABLE_OLD_SSL)
# include <boost/asio/ssl/basic_context.hpp>
# include <boost/asio/ssl/context_service.hpp>
#else // defined(BOOST_ASIO_ENABLE_OLD_SSL)
# include <string>
# include <boost/asio/buffer.hpp>
# include <boost/asio/io_service.hpp>
# include <boost/asio/ssl/context_base.hpp>
# include <boost/asio/ssl/detail/openssl_types.hpp>
# include <boost/asio/ssl/detail/openssl_init.hpp>
# include <boost/asio/ssl/detail/password_callback.hpp>
# include <boost/asio/ssl/detail/verify_callback.hpp>
# include <boost/asio/ssl/verify_mode.hpp>
#endif // defined(BOOST_ASIO_ENABLE_OLD_SSL)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace ssl {
#if defined(BOOST_ASIO_ENABLE_OLD_SSL)
/// Typedef for the typical usage of context.
typedef basic_context<context_service> context;
#else // defined(BOOST_ASIO_ENABLE_OLD_SSL)
class context
: public context_base,
private noncopyable
{
public:
/// The native handle type of the SSL context.
typedef SSL_CTX* native_handle_type;
/// (Deprecated: Use native_handle_type.) The native type of the SSL context.
typedef SSL_CTX* impl_type;
/// Constructor.
BOOST_ASIO_DECL explicit context(method m);
/// Deprecated constructor taking a reference to an io_service object.
BOOST_ASIO_DECL context(boost::asio::io_service&, method m);
#if defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
/// Move-construct a context from another.
/**
* This constructor moves an SSL context from one object to another.
*
* @param other The other context object from which the move will occur.
*
* @note Following the move, the following operations only are valid for the
* moved-from object:
* @li Destruction.
* @li As a target for move-assignment.
*/
BOOST_ASIO_DECL context(context&& other);
/// Move-assign a context from another.
/**
* This assignment operator moves an SSL context from one object to another.
*
* @param other The other context object from which the move will occur.
*
* @note Following the move, the following operations only are valid for the
* moved-from object:
* @li Destruction.
* @li As a target for move-assignment.
*/
BOOST_ASIO_DECL context& operator=(context&& other);
#endif // defined(BOOST_ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
/// Destructor.
BOOST_ASIO_DECL ~context();
/// Get the underlying implementation in the native type.
/**
* This function may be used to obtain the underlying implementation of the
* context. This is intended to allow access to context functionality that is
* not otherwise provided.
*/
BOOST_ASIO_DECL native_handle_type native_handle();
/// (Deprecated: Use native_handle().) Get the underlying implementation in
/// the native type.
/**
* This function may be used to obtain the underlying implementation of the
* context. This is intended to allow access to context functionality that is
* not otherwise provided.
*/
BOOST_ASIO_DECL impl_type impl();
/// Clear options on the context.
/**
* This function may be used to configure the SSL options used by the context.
*
* @param o A bitmask of options. The available option values are defined in
* the context_base class. The specified options, if currently enabled on the
* context, are cleared.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_clear_options.
*/
BOOST_ASIO_DECL void clear_options(options o);
/// Clear options on the context.
/**
* This function may be used to configure the SSL options used by the context.
*
* @param o A bitmask of options. The available option values are defined in
* the context_base class. The specified options, if currently enabled on the
* context, are cleared.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_clear_options.
*/
BOOST_ASIO_DECL boost::system::error_code clear_options(options o,
boost::system::error_code& ec);
/// Set options on the context.
/**
* This function may be used to configure the SSL options used by the context.
*
* @param o A bitmask of options. The available option values are defined in
* the context_base class. The options are bitwise-ored with any existing
* value for the options.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_set_options.
*/
BOOST_ASIO_DECL void set_options(options o);
/// Set options on the context.
/**
* This function may be used to configure the SSL options used by the context.
*
* @param o A bitmask of options. The available option values are defined in
* the context_base class. The options are bitwise-ored with any existing
* value for the options.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_set_options.
*/
BOOST_ASIO_DECL boost::system::error_code set_options(options o,
boost::system::error_code& ec);
/// Set the peer verification mode.
/**
* This function may be used to configure the peer verification mode used by
* the context.
*
* @param v A bitmask of peer verification modes. See @ref verify_mode for
* available values.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_set_verify.
*/
BOOST_ASIO_DECL void set_verify_mode(verify_mode v);
/// Set the peer verification mode.
/**
* This function may be used to configure the peer verification mode used by
* the context.
*
* @param v A bitmask of peer verification modes. See @ref verify_mode for
* available values.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_set_verify.
*/
BOOST_ASIO_DECL boost::system::error_code set_verify_mode(
verify_mode v, boost::system::error_code& ec);
/// Set the peer verification depth.
/**
* This function may be used to configure the maximum verification depth
* allowed by the context.
*
* @param depth Maximum depth for the certificate chain verification that
* shall be allowed.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_set_verify_depth.
*/
BOOST_ASIO_DECL void set_verify_depth(int depth);
/// Set the peer verification depth.
/**
* This function may be used to configure the maximum verification depth
* allowed by the context.
*
* @param depth Maximum depth for the certificate chain verification that
* shall be allowed.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_set_verify_depth.
*/
BOOST_ASIO_DECL boost::system::error_code set_verify_depth(
int depth, boost::system::error_code& ec);
/// Set the callback used to verify peer certificates.
/**
* This function is used to specify a callback function that will be called
* by the implementation when it needs to verify a peer certificate.
*
* @param callback The function object to be used for verifying a certificate.
* The function signature of the handler must be:
* @code bool verify_callback(
* bool preverified, // True if the certificate passed pre-verification.
* verify_context& ctx // The peer certificate and other context.
* ); @endcode
* The return value of the callback is true if the certificate has passed
* verification, false otherwise.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_set_verify.
*/
template <typename VerifyCallback>
void set_verify_callback(VerifyCallback callback);
/// Set the callback used to verify peer certificates.
/**
* This function is used to specify a callback function that will be called
* by the implementation when it needs to verify a peer certificate.
*
* @param callback The function object to be used for verifying a certificate.
* The function signature of the handler must be:
* @code bool verify_callback(
* bool preverified, // True if the certificate passed pre-verification.
* verify_context& ctx // The peer certificate and other context.
* ); @endcode
* The return value of the callback is true if the certificate has passed
* verification, false otherwise.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_set_verify.
*/
template <typename VerifyCallback>
boost::system::error_code set_verify_callback(VerifyCallback callback,
boost::system::error_code& ec);
/// Load a certification authority file for performing verification.
/**
* This function is used to load one or more trusted certification authorities
* from a file.
*
* @param filename The name of a file containing certification authority
* certificates in PEM format.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_load_verify_locations.
*/
BOOST_ASIO_DECL void load_verify_file(const std::string& filename);
/// Load a certification authority file for performing verification.
/**
* This function is used to load the certificates for one or more trusted
* certification authorities from a file.
*
* @param filename The name of a file containing certification authority
* certificates in PEM format.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_load_verify_locations.
*/
BOOST_ASIO_DECL boost::system::error_code load_verify_file(
const std::string& filename, boost::system::error_code& ec);
/// Add certification authority for performing verification.
/**
* This function is used to add one trusted certification authority
* from a memory buffer.
*
* @param ca The buffer containing the certification authority certificate.
* The certificate must use the PEM format.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_get_cert_store and @c X509_STORE_add_cert.
*/
BOOST_ASIO_DECL void add_certificate_authority(const const_buffer& ca);
/// Add certification authority for performing verification.
/**
* This function is used to add one trusted certification authority
* from a memory buffer.
*
* @param ca The buffer containing the certification authority certificate.
* The certificate must use the PEM format.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_get_cert_store and @c X509_STORE_add_cert.
*/
BOOST_ASIO_DECL boost::system::error_code add_certificate_authority(
const const_buffer& ca, boost::system::error_code& ec);
/// Configures the context to use the default directories for finding
/// certification authority certificates.
/**
* This function specifies that the context should use the default,
* system-dependent directories for locating certification authority
* certificates.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_set_default_verify_paths.
*/
BOOST_ASIO_DECL void set_default_verify_paths();
/// Configures the context to use the default directories for finding
/// certification authority certificates.
/**
* This function specifies that the context should use the default,
* system-dependent directories for locating certification authority
* certificates.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_set_default_verify_paths.
*/
BOOST_ASIO_DECL boost::system::error_code set_default_verify_paths(
boost::system::error_code& ec);
/// Add a directory containing certificate authority files to be used for
/// performing verification.
/**
* This function is used to specify the name of a directory containing
* certification authority certificates. Each file in the directory must
* contain a single certificate. The files must be named using the subject
* name's hash and an extension of ".0".
*
* @param path The name of a directory containing the certificates.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_load_verify_locations.
*/
BOOST_ASIO_DECL void add_verify_path(const std::string& path);
/// Add a directory containing certificate authority files to be used for
/// performing verification.
/**
* This function is used to specify the name of a directory containing
* certification authority certificates. Each file in the directory must
* contain a single certificate. The files must be named using the subject
* name's hash and an extension of ".0".
*
* @param path The name of a directory containing the certificates.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_load_verify_locations.
*/
BOOST_ASIO_DECL boost::system::error_code add_verify_path(
const std::string& path, boost::system::error_code& ec);
/// Use a certificate from a memory buffer.
/**
* This function is used to load a certificate into the context from a buffer.
*
* @param certificate The buffer containing the certificate.
*
* @param format The certificate format (ASN.1 or PEM).
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_use_certificate or SSL_CTX_use_certificate_ASN1.
*/
BOOST_ASIO_DECL void use_certificate(
const const_buffer& certificate, file_format format);
/// Use a certificate from a memory buffer.
/**
* This function is used to load a certificate into the context from a buffer.
*
* @param certificate The buffer containing the certificate.
*
* @param format The certificate format (ASN.1 or PEM).
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_use_certificate or SSL_CTX_use_certificate_ASN1.
*/
BOOST_ASIO_DECL boost::system::error_code use_certificate(
const const_buffer& certificate, file_format format,
boost::system::error_code& ec);
/// Use a certificate from a file.
/**
* This function is used to load a certificate into the context from a file.
*
* @param filename The name of the file containing the certificate.
*
* @param format The file format (ASN.1 or PEM).
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_use_certificate_file.
*/
BOOST_ASIO_DECL void use_certificate_file(
const std::string& filename, file_format format);
/// Use a certificate from a file.
/**
* This function is used to load a certificate into the context from a file.
*
* @param filename The name of the file containing the certificate.
*
* @param format The file format (ASN.1 or PEM).
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_use_certificate_file.
*/
BOOST_ASIO_DECL boost::system::error_code use_certificate_file(
const std::string& filename, file_format format,
boost::system::error_code& ec);
/// Use a certificate chain from a memory buffer.
/**
* This function is used to load a certificate chain into the context from a
* buffer.
*
* @param chain The buffer containing the certificate chain. The certificate
* chain must use the PEM format.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_use_certificate and SSL_CTX_add_extra_chain_cert.
*/
BOOST_ASIO_DECL void use_certificate_chain(const const_buffer& chain);
/// Use a certificate chain from a memory buffer.
/**
* This function is used to load a certificate chain into the context from a
* buffer.
*
* @param chain The buffer containing the certificate chain. The certificate
* chain must use the PEM format.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_use_certificate and SSL_CTX_add_extra_chain_cert.
*/
BOOST_ASIO_DECL boost::system::error_code use_certificate_chain(
const const_buffer& chain, boost::system::error_code& ec);
/// Use a certificate chain from a file.
/**
* This function is used to load a certificate chain into the context from a
* file.
*
* @param filename The name of the file containing the certificate. The file
* must use the PEM format.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_use_certificate_chain_file.
*/
BOOST_ASIO_DECL void use_certificate_chain_file(const std::string& filename);
/// Use a certificate chain from a file.
/**
* This function is used to load a certificate chain into the context from a
* file.
*
* @param filename The name of the file containing the certificate. The file
* must use the PEM format.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_use_certificate_chain_file.
*/
BOOST_ASIO_DECL boost::system::error_code use_certificate_chain_file(
const std::string& filename, boost::system::error_code& ec);
/// Use a private key from a memory buffer.
/**
* This function is used to load a private key into the context from a buffer.
*
* @param private_key The buffer containing the private key.
*
* @param format The private key format (ASN.1 or PEM).
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_use_PrivateKey or SSL_CTX_use_PrivateKey_ASN1.
*/
BOOST_ASIO_DECL void use_private_key(
const const_buffer& private_key, file_format format);
/// Use a private key from a memory buffer.
/**
* This function is used to load a private key into the context from a buffer.
*
* @param private_key The buffer containing the private key.
*
* @param format The private key format (ASN.1 or PEM).
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_use_PrivateKey or SSL_CTX_use_PrivateKey_ASN1.
*/
BOOST_ASIO_DECL boost::system::error_code use_private_key(
const const_buffer& private_key, file_format format,
boost::system::error_code& ec);
/// Use a private key from a file.
/**
* This function is used to load a private key into the context from a file.
*
* @param filename The name of the file containing the private key.
*
* @param format The file format (ASN.1 or PEM).
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_use_PrivateKey_file.
*/
BOOST_ASIO_DECL void use_private_key_file(
const std::string& filename, file_format format);
/// Use a private key from a file.
/**
* This function is used to load a private key into the context from a file.
*
* @param filename The name of the file containing the private key.
*
* @param format The file format (ASN.1 or PEM).
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_use_PrivateKey_file.
*/
BOOST_ASIO_DECL boost::system::error_code use_private_key_file(
const std::string& filename, file_format format,
boost::system::error_code& ec);
/// Use an RSA private key from a memory buffer.
/**
* This function is used to load an RSA private key into the context from a
* buffer.
*
* @param private_key The buffer containing the RSA private key.
*
* @param format The private key format (ASN.1 or PEM).
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_use_RSAPrivateKey or SSL_CTX_use_RSAPrivateKey_ASN1.
*/
BOOST_ASIO_DECL void use_rsa_private_key(
const const_buffer& private_key, file_format format);
/// Use an RSA private key from a memory buffer.
/**
* This function is used to load an RSA private key into the context from a
* buffer.
*
* @param private_key The buffer containing the RSA private key.
*
* @param format The private key format (ASN.1 or PEM).
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_use_RSAPrivateKey or SSL_CTX_use_RSAPrivateKey_ASN1.
*/
BOOST_ASIO_DECL boost::system::error_code use_rsa_private_key(
const const_buffer& private_key, file_format format,
boost::system::error_code& ec);
/// Use an RSA private key from a file.
/**
* This function is used to load an RSA private key into the context from a
* file.
*
* @param filename The name of the file containing the RSA private key.
*
* @param format The file format (ASN.1 or PEM).
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_use_RSAPrivateKey_file.
*/
BOOST_ASIO_DECL void use_rsa_private_key_file(
const std::string& filename, file_format format);
/// Use an RSA private key from a file.
/**
* This function is used to load an RSA private key into the context from a
* file.
*
* @param filename The name of the file containing the RSA private key.
*
* @param format The file format (ASN.1 or PEM).
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_use_RSAPrivateKey_file.
*/
BOOST_ASIO_DECL boost::system::error_code use_rsa_private_key_file(
const std::string& filename, file_format format,
boost::system::error_code& ec);
/// Use the specified memory buffer to obtain the temporary Diffie-Hellman
/// parameters.
/**
* This function is used to load Diffie-Hellman parameters into the context
* from a buffer.
*
* @param dh The memory buffer containing the Diffie-Hellman parameters. The
* buffer must use the PEM format.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_set_tmp_dh.
*/
BOOST_ASIO_DECL void use_tmp_dh(const const_buffer& dh);
/// Use the specified memory buffer to obtain the temporary Diffie-Hellman
/// parameters.
/**
* This function is used to load Diffie-Hellman parameters into the context
* from a buffer.
*
* @param dh The memory buffer containing the Diffie-Hellman parameters. The
* buffer must use the PEM format.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_set_tmp_dh.
*/
BOOST_ASIO_DECL boost::system::error_code use_tmp_dh(
const const_buffer& dh, boost::system::error_code& ec);
/// Use the specified file to obtain the temporary Diffie-Hellman parameters.
/**
* This function is used to load Diffie-Hellman parameters into the context
* from a file.
*
* @param filename The name of the file containing the Diffie-Hellman
* parameters. The file must use the PEM format.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_set_tmp_dh.
*/
BOOST_ASIO_DECL void use_tmp_dh_file(const std::string& filename);
/// Use the specified file to obtain the temporary Diffie-Hellman parameters.
/**
* This function is used to load Diffie-Hellman parameters into the context
* from a file.
*
* @param filename The name of the file containing the Diffie-Hellman
* parameters. The file must use the PEM format.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_set_tmp_dh.
*/
BOOST_ASIO_DECL boost::system::error_code use_tmp_dh_file(
const std::string& filename, boost::system::error_code& ec);
/// Set the password callback.
/**
* This function is used to specify a callback function to obtain password
* information about an encrypted key in PEM format.
*
* @param callback The function object to be used for obtaining the password.
* The function signature of the handler must be:
* @code std::string password_callback(
* std::size_t max_length, // The maximum size for a password.
* password_purpose purpose // Whether password is for reading or writing.
* ); @endcode
* The return value of the callback is a string containing the password.
*
* @throws boost::system::system_error Thrown on failure.
*
* @note Calls @c SSL_CTX_set_default_passwd_cb.
*/
template <typename PasswordCallback>
void set_password_callback(PasswordCallback callback);
/// Set the password callback.
/**
* This function is used to specify a callback function to obtain password
* information about an encrypted key in PEM format.
*
* @param callback The function object to be used for obtaining the password.
* The function signature of the handler must be:
* @code std::string password_callback(
* std::size_t max_length, // The maximum size for a password.
* password_purpose purpose // Whether password is for reading or writing.
* ); @endcode
* The return value of the callback is a string containing the password.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note Calls @c SSL_CTX_set_default_passwd_cb.
*/
template <typename PasswordCallback>
boost::system::error_code set_password_callback(PasswordCallback callback,
boost::system::error_code& ec);
private:
struct bio_cleanup;
struct x509_cleanup;
struct evp_pkey_cleanup;
struct rsa_cleanup;
struct dh_cleanup;
// Helper function used to set a peer certificate verification callback.
BOOST_ASIO_DECL boost::system::error_code do_set_verify_callback(
detail::verify_callback_base* callback, boost::system::error_code& ec);
// Callback used when the SSL implementation wants to verify a certificate.
BOOST_ASIO_DECL static int verify_callback_function(
int preverified, X509_STORE_CTX* ctx);
// Helper function used to set a password callback.
BOOST_ASIO_DECL boost::system::error_code do_set_password_callback(
detail::password_callback_base* callback, boost::system::error_code& ec);
// Callback used when the SSL implementation wants a password.
BOOST_ASIO_DECL static int password_callback_function(
char* buf, int size, int purpose, void* data);
// Helper function to set the temporary Diffie-Hellman parameters from a BIO.
BOOST_ASIO_DECL boost::system::error_code do_use_tmp_dh(
BIO* bio, boost::system::error_code& ec);
// Helper function to make a BIO from a memory buffer.
BOOST_ASIO_DECL BIO* make_buffer_bio(const const_buffer& b);
// The underlying native implementation.
native_handle_type handle_;
// Ensure openssl is initialised.
boost::asio::ssl::detail::openssl_init<> init_;
};
#endif // defined(BOOST_ASIO_ENABLE_OLD_SSL)
} // namespace ssl
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#include <boost/asio/ssl/impl/context.hpp>
#if defined(BOOST_ASIO_HEADER_ONLY)
# include <boost/asio/ssl/impl/context.ipp>
#endif // defined(BOOST_ASIO_HEADER_ONLY)
#endif // BOOST_ASIO_SSL_CONTEXT_HPP