100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/*
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* Copyright (c) 2018 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2022-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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#pragma once
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/**
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* @file ssl.h
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*
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* The SSL definitions for MaxScale
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*/
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#include <maxscale/cdefs.h>
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#include <maxscale/protocol.h>
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#include <openssl/crypto.h>
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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#include <openssl/dh.h>
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MXS_BEGIN_DECLS
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struct DCB;
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typedef enum ssl_method_type
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{
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#ifndef OPENSSL_1_1
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SERVICE_TLS10,
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#endif
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#ifdef OPENSSL_1_0
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SERVICE_TLS11,
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SERVICE_TLS12,
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#endif
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SERVICE_SSL_MAX,
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SERVICE_TLS_MAX,
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SERVICE_SSL_TLS_MAX,
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SERVICE_SSL_UNKNOWN
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} ssl_method_type_t;
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/**
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* Return codes for SSL authentication checks
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*/
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#define SSL_AUTH_CHECKS_OK 0
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#define SSL_ERROR_CLIENT_NOT_SSL 1
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#define SSL_ERROR_ACCEPT_FAILED 2
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/**
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* The ssl_listener structure is used to aggregate the SSL configuration items
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* and data for a particular listener
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*/
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typedef struct ssl_listener
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{
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SSL_CTX* ctx;
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SSL_METHOD* method; /*< SSLv3 or TLS1.0/1.1/1.2 methods
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* see: https://www.openssl.org/docs/ssl/SSL_CTX_new.html
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**/
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int ssl_cert_verify_depth;/*< SSL certificate verification depth */
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ssl_method_type_t ssl_method_type; /*< Which of the SSLv3 or TLS1.0/1.1/1.2 methods to use */
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char* ssl_cert; /*< SSL certificate */
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char* ssl_key; /*< SSL private key */
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char* ssl_ca_cert; /*< SSL CA certificate */
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bool ssl_init_done; /*< If SSL has already been initialized for this service
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* */
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bool ssl_verify_peer_certificate; /*< Enable peer certificate verification */
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struct ssl_listener
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* next; /*< Next SSL configuration, currently used to store obsolete configurations */
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} SSL_LISTENER;
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int ssl_authenticate_client(DCB* dcb, bool is_capable);
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bool ssl_is_connection_healthy(DCB* dcb);
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bool ssl_check_data_to_process(DCB* dcb);
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bool ssl_required_by_dcb(DCB* dcb);
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bool ssl_required_but_not_negotiated(DCB* dcb);
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const char* ssl_method_type_to_string(ssl_method_type_t method_type);
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ssl_method_type_t string_to_ssl_method_type(const char* str);
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/**
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* Helper function for client ssl authentication. Authenticates and checks changes
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* in ssl status.
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*
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* @param dcb Client dcb
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*
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* @return MXS_AUTH_FAILED_SSL or MXS_AUTH_FAILED on error. MXS_AUTH_SSL_INCOMPLETE
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* if ssl authentication is in progress and should be retried, MXS_AUTH_SSL_COMPLETE
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* if ssl authentication is complete or not required.
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*/
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int ssl_authenticate_check_status(DCB* dcb);
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// TODO: Move this to an internal ssl.h header
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void write_ssl_config(int fd, SSL_LISTENER* ssl);
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MXS_END_DECLS
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