/* $NetBSD: bufferevent_ssl.h,v 1.1.1.1 2013/04/11 16:43:34 christos Exp $ */ /* * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _EVENT2_BUFFEREVENT_SSL_H_ #define _EVENT2_BUFFEREVENT_SSL_H_ /** @file event2/bufferevent_ssl.h OpenSSL support for bufferevents. */ #include #include #include #ifdef __cplusplus extern "C" { #endif /* This is what openssl's SSL objects are underneath. */ struct ssl_st; /** The state of an SSL object to be used when creating a new SSL bufferevent. */ enum bufferevent_ssl_state { BUFFEREVENT_SSL_OPEN = 0, BUFFEREVENT_SSL_CONNECTING = 1, BUFFEREVENT_SSL_ACCEPTING = 2 }; #if defined(_EVENT_HAVE_OPENSSL) || defined(_EVENT_IN_DOXYGEN) /** Create a new SSL bufferevent to send its data over another bufferevent. @param base An event_base to use to detect reading and writing. It must also be the base for the underlying bufferevent. @param underlying A socket to use for this SSL @param ssl A SSL* object from openssl. @param state The current state of the SSL connection @param options One or more bufferevent_options @return A new bufferevent on success, or NULL on failure */ struct bufferevent * bufferevent_openssl_filter_new(struct event_base *base, struct bufferevent *underlying, struct ssl_st *ssl, enum bufferevent_ssl_state state, int options); /** Create a new SSL bufferevent to send its data over an SSL * on a socket. @param base An event_base to use to detect reading and writing @param fd A socket to use for this SSL @param ssl A SSL* object from openssl. @param state The current state of the SSL connection @param options One or more bufferevent_options @return A new bufferevent on success, or NULL on failure. */ struct bufferevent * bufferevent_openssl_socket_new(struct event_base *base, evutil_socket_t fd, struct ssl_st *ssl, enum bufferevent_ssl_state state, int options); /** Return the underlying openssl SSL * object for an SSL bufferevent. */ struct ssl_st * bufferevent_openssl_get_ssl(struct bufferevent *bufev); /** Tells a bufferevent to begin SSL renegotiation. */ int bufferevent_ssl_renegotiate(struct bufferevent *bev); /** Return the most recent OpenSSL error reported on an SSL bufferevent. */ unsigned long bufferevent_get_openssl_error(struct bufferevent *bev); #endif #ifdef __cplusplus } #endif #endif /* _EVENT2_BUFFEREVENT_SSL_H_ */