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apache2
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mod_ssl_openssl.h
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/* Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /** * @file mod_ssl_openssl.h * @brief Interface to OpenSSL-specific APIs provided by mod_ssl * * @defgroup MOD_SSL mod_ssl_openssl * @ingroup APACHE_MODS * @{ */ #ifndef __MOD_SSL_OPENSSL_H__ #define __MOD_SSL_OPENSSL_H__ #include "mod_ssl.h" /* OpenSSL headers */ #include <openssl/opensslv.h> #if OPENSSL_VERSION_NUMBER >= 0x30000000 #include <openssl/macros.h> /* for OPENSSL_API_LEVEL */ #endif #if OPENSSL_VERSION_NUMBER >= 0x10001000 /* must be defined before including ssl.h */ #define OPENSSL_NO_SSL_INTERN #endif #include <openssl/ssl.h> #include <openssl/evp.h> #include <openssl/x509.h> /** * init_server hook -- allow SSL_CTX-specific initialization to be performed by * a module for each SSL-enabled server (one at a time) * @param s SSL-enabled [virtual] server * @param p pconf pool * @param is_proxy 1 if this server supports backend connections * over SSL/TLS, 0 if it supports client connections over SSL/TLS * @param ctx OpenSSL SSL Context for the server */ APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, init_server, (server_rec *s, apr_pool_t *p, int is_proxy, SSL_CTX *ctx)) /** * pre_handshake hook * @param c conn_rec for new connection from client or to backend server * @param ssl OpenSSL SSL Connection for the client or backend server * @param is_proxy 1 if this handshake is for a backend connection, 0 otherwise */ APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, pre_handshake, (conn_rec *c, SSL *ssl, int is_proxy)) /** * proxy_post_handshake hook -- allow module to abort after successful * handshake with backend server and subsequent peer checks * @param c conn_rec for connection to backend server * @param ssl OpenSSL SSL Connection for the client or backend server */ APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, proxy_post_handshake, (conn_rec *c, SSL *ssl)) /** On TLS connections that do not relate to a configured virtual host, * allow other modules to provide a X509 certificate and EVP_PKEY to * be used on the connection. This first hook which does not * return DECLINED will determine the outcome. */ APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, answer_challenge, (conn_rec *c, const char *server_name, X509 **pcert, EVP_PKEY **pkey)) /** During post_config phase, ask around if someone wants to provide * OCSP stapling status information for the given cert (with the also * provided issuer certificate). The first hook which does not * return DECLINED promises to take responsibility (and respond * in later calls via hook ssl_get_stapling_status). * If no hook takes over, mod_ssl's own stapling implementation will * be applied (if configured). */ APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, init_stapling_status, (server_rec *s, apr_pool_t *p, X509 *cert, X509 *issuer)) /** Anyone answering positive to ssl_init_stapling_status for a * certificate, needs to register here and supply the actual OCSP stapling * status data (OCSP_RESP) for a new connection. * A hook supplying the response data must return APR_SUCCESS. * The data is returned in DER encoded bytes via pder and pderlen. The * returned pointer may be NULL, which indicates that data is (currently) * unavailable. * If DER data is returned, it MUST come from a response with * status OCSP_RESPONSE_STATUS_SUCCESSFUL and V_OCSP_CERTSTATUS_GOOD * or V_OCSP_CERTSTATUS_REVOKED, not V_OCSP_CERTSTATUS_UNKNOWN. This means * errors in OCSP retrieval are to be handled/logged by the hook and * are not done by mod_ssl. * Any DER bytes returned MUST be allocated via malloc() and ownership * passes to mod_ssl. Meaning, the hook must return a malloced copy of * the data it has. mod_ssl (or OpenSSL) will free it. */ APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, get_stapling_status, (unsigned char **pder, int *pderlen, conn_rec *c, server_rec *s, X509 *cert)) #endif /* __MOD_SSL_OPENSSL_H__ */ /** @} */