bufferevent_ssl.h

Go to the documentation of this file.

/*
 * 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_INCLUDED_
#define EVENT2_BUFFEREVENT_SSL_H_INCLUDED_

#include <event2/visibility.h>
#include <event2/event-config.h>
#include <event2/bufferevent.h>
#include <event2/util.h>
 
#ifdef __cplusplus
extern "C" {
#endif

enum bufferevent_ssl_state {
    BUFFEREVENT_SSL_OPEN = 0,
    BUFFEREVENT_SSL_CONNECTING = 1,
    BUFFEREVENT_SSL_ACCEPTING = 2
};

#define BUFFEREVENT_SSL_DIRTY_SHUTDOWN 1
#define BUFFEREVENT_SSL_BATCH_WRITE 2
 
#if defined(EVENT__HAVE_OPENSSL) || defined(EVENT__HAVE_MBEDTLS)
EVENT2_EXPORT_SYMBOL
ev_uint64_t bufferevent_ssl_get_flags(struct bufferevent *bev);
EVENT2_EXPORT_SYMBOL
ev_uint64_t bufferevent_ssl_set_flags(struct bufferevent *bev, ev_uint64_t flags);
EVENT2_EXPORT_SYMBOL
ev_uint64_t bufferevent_ssl_clear_flags(struct bufferevent *bev, ev_uint64_t flags);
 
#endif /* defined(EVENT__HAVE_OPENSSL) || defined(EVENT__HAVE_MBEDTLS) */
 
#if defined(EVENT__HAVE_OPENSSL) || defined(EVENT_IN_DOXYGEN_)
/* This is what openssl's SSL objects are underneath. */
struct ssl_st;

EVENT2_EXPORT_SYMBOL
struct bufferevent *
bufferevent_openssl_filter_new(struct event_base *base,
    struct bufferevent *underlying,
    struct ssl_st *ssl,
    enum bufferevent_ssl_state state,
    int options);

EVENT2_EXPORT_SYMBOL
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);

EVENT2_EXPORT_SYMBOL
int bufferevent_openssl_get_allow_dirty_shutdown(struct bufferevent *bev);
EVENT2_EXPORT_SYMBOL
void bufferevent_openssl_set_allow_dirty_shutdown(struct bufferevent *bev,
    int allow_dirty_shutdown);

EVENT2_EXPORT_SYMBOL
struct ssl_st *
bufferevent_openssl_get_ssl(struct bufferevent *bufev);

EVENT2_EXPORT_SYMBOL
int bufferevent_ssl_renegotiate(struct bufferevent *bev);

EVENT2_EXPORT_SYMBOL
unsigned long bufferevent_get_openssl_error(struct bufferevent *bev);
 
#endif
#if defined(EVENT__HAVE_MBEDTLS) || defined(EVENT_IN_DOXYGEN_)
struct mbedtls_ssl_context;
struct mbedtls_ssl_config;
typedef struct mbedtls_ssl_context mbedtls_dyncontext;

EVENT2_EXPORT_SYMBOL
struct bufferevent *
bufferevent_mbedtls_filter_new(struct event_base *base,
    struct bufferevent *underlying,
    mbedtls_dyncontext *ssl,
    enum bufferevent_ssl_state state,
    int options);

EVENT2_EXPORT_SYMBOL
struct bufferevent *
bufferevent_mbedtls_socket_new(struct event_base *base,
    evutil_socket_t fd,
    mbedtls_dyncontext *ssl,
    enum bufferevent_ssl_state state,
    int options);

EVENT2_EXPORT_SYMBOL
int bufferevent_mbedtls_get_allow_dirty_shutdown(struct bufferevent *bev);
EVENT2_EXPORT_SYMBOL
void bufferevent_mbedtls_set_allow_dirty_shutdown(struct bufferevent *bev,
    int allow_dirty_shutdown);

EVENT2_EXPORT_SYMBOL
struct mbedtls_ssl_context *
bufferevent_mbedtls_get_ssl(struct bufferevent *bufev);

EVENT2_EXPORT_SYMBOL
int bufferevent_mbedtls_renegotiate(struct bufferevent *bev);

EVENT2_EXPORT_SYMBOL
unsigned long bufferevent_get_mbedtls_error(struct bufferevent *bev);

EVENT2_EXPORT_SYMBOL
mbedtls_dyncontext *
bufferevent_mbedtls_dyncontext_new(struct mbedtls_ssl_config *conf);

EVENT2_EXPORT_SYMBOL
void
bufferevent_mbedtls_dyncontext_free(mbedtls_dyncontext *ctx);
 
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif /* EVENT2_BUFFEREVENT_SSL_H_INCLUDED_ */