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event2/bufferevent_ssl.h
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00001 /*
00002  * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson
00003  *
00004  * Redistribution and use in source and binary forms, with or without
00005  * modification, are permitted provided that the following conditions
00006  * are met:
00007  * 1. Redistributions of source code must retain the above copyright
00008  *    notice, this list of conditions and the following disclaimer.
00009  * 2. Redistributions in binary form must reproduce the above copyright
00010  *    notice, this list of conditions and the following disclaimer in the
00011  *    documentation and/or other materials provided with the distribution.
00012  * 3. The name of the author may not be used to endorse or promote products
00013  *    derived from this software without specific prior written permission.
00014  *
00015  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
00016  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00017  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
00018  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
00019  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
00020  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00021  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00022  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00023  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
00024  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00025  */
00026 #ifndef _EVENT2_BUFFEREVENT_SSL_H_
00027 #define _EVENT2_BUFFEREVENT_SSL_H_
00028 
00034 #include <event2/event-config.h>
00035 #include <event2/bufferevent.h>
00036 #include <event2/util.h>
00037 
00038 #ifdef __cplusplus
00039 extern "C" {
00040 #endif
00041 
00042 /* This is what openssl's SSL objects are underneath. */
00043 struct ssl_st;
00044 
00049 enum bufferevent_ssl_state {
00050         BUFFEREVENT_SSL_OPEN = 0,
00051         BUFFEREVENT_SSL_CONNECTING = 1,
00052         BUFFEREVENT_SSL_ACCEPTING = 2
00053 };
00054 
00055 #if defined(_EVENT_HAVE_OPENSSL) || defined(_EVENT_IN_DOXYGEN)
00056 
00067 struct bufferevent *
00068 bufferevent_openssl_filter_new(struct event_base *base,
00069     struct bufferevent *underlying,
00070     struct ssl_st *ssl,
00071     enum bufferevent_ssl_state state,
00072     int options);
00073 
00084 struct bufferevent *
00085 bufferevent_openssl_socket_new(struct event_base *base,
00086     evutil_socket_t fd,
00087     struct ssl_st *ssl,
00088     enum bufferevent_ssl_state state,
00089     int options);
00090 
00092 struct ssl_st *
00093 bufferevent_openssl_get_ssl(struct bufferevent *bufev);
00094 
00096 int bufferevent_ssl_renegotiate(struct bufferevent *bev);
00097 
00099 unsigned long bufferevent_get_openssl_error(struct bufferevent *bev);
00100 
00101 #endif
00102 
00103 #ifdef __cplusplus
00104 }
00105 #endif
00106 
00107 #endif /* _EVENT2_BUFFEREVENT_SSL_H_ */