Squashed 'third_party/libevent/' content from commit d8ceae8
Change-Id: I84e1b23561eb225b9f288717b028e6bc9e5a27e1
git-subtree-dir: third_party/libevent
git-subtree-split: d8ceae81b83f3d0a56e2f41d4c429b2702a8e302
diff --git a/include/event2/bufferevent_ssl.h b/include/event2/bufferevent_ssl.h
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+++ b/include/event2/bufferevent_ssl.h
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+/*
+ * 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 <event2/event-config.h>
+#include <event2/bufferevent.h>
+#include <event2/util.h>
+
+#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_ */