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bufferevent_ssl(3) Library Functions Manual bufferevent_ssl(3) NAME bufferevent_ssl - OpenSSL support for bufferevents. SYNOPSIS #include <event2/bufferevent_ssl.h> #include <event2/visibility.h> #include <event2/event-config.h> #include <event2/bufferevent.h> #include <event2/util.h> Enumerations enum bufferevent_ssl_state { BUFFEREVENT_SSL_OPEN = 0, BUFFEREVENT_SSL_CONNECTING = 1, BUFFEREVENT_SSL_ACCEPTING = 2 } The state of an SSL object to be used when creating a new SSL bufferevent. " Functions EVENT2_EXPORT_SYMBOL unsigned long bufferevent_get_openssl_error (struct bufferevent *bev) Return the most recent OpenSSL error reported on an SSL bufferevent. 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) Create a new SSL bufferevent to send its data over another bufferevent. EVENT2_EXPORT_SYMBOL int bufferevent_openssl_get_allow_dirty_shutdown (struct bufferevent *bev) Control how to report dirty SSL shutdowns. EVENT2_EXPORT_SYMBOL struct ssl_st * bufferevent_openssl_get_ssl (struct bufferevent *bufev) Return the underlying openssl SSL * object for an SSL bufferevent. EVENT2_EXPORT_SYMBOL void bufferevent_openssl_set_allow_dirty_shutdown (struct bufferevent *bev, int allow_dirty_shutdown) 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) Create a new SSL bufferevent to send its data over an SSL * on a socket. EVENT2_EXPORT_SYMBOL int bufferevent_ssl_renegotiate (struct bufferevent *bev) Tells a bufferevent to begin SSL renegotiation. Detailed Description OpenSSL support for bufferevents. Function Documentation EVENT2_EXPORT_SYMBOL unsigned long bufferevent_get_openssl_error (struct bufferevent * bev) Return the most recent OpenSSL error reported on an SSL bufferevent. 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) Create a new SSL bufferevent to send its data over another bufferevent. Parameters: base An event_base to use to detect reading and writing. It must also be the base for the underlying bufferevent. underlying A socket to use for this SSL ssl A SSL* object from openssl. state The current state of the SSL connection options One or more bufferevent_options Returns: A new bufferevent on success, or NULL on failure EVENT2_EXPORT_SYMBOL int bufferevent_openssl_get_allow_dirty_shutdown (struct bufferevent * bev) Control how to report dirty SSL shutdowns. If the peer (or the network, or an attacker) closes the TCP connection before closing the SSL channel, and the protocol is SSL >= v3, this is a 'dirty' shutdown. If allow_dirty_shutdown is 0 (default), this is reported as BEV_EVENT_ERROR. If instead allow_dirty_shutdown=1, a dirty shutdown is reported as BEV_EVENT_EOF. (Note that if the protocol is < SSLv3, you will always receive BEV_EVENT_EOF, since SSL 2 and earlier cannot distinguish a secure connection close from a dirty one. This is one reason (among many) not to use SSL 2.) EVENT2_EXPORT_SYMBOL struct ssl_st* bufferevent_openssl_get_ssl (struct bufferevent * bufev) Return the underlying openssl SSL * object for an SSL bufferevent. 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) Create a new SSL bufferevent to send its data over an SSL * on a socket. Parameters: base An event_base to use to detect reading and writing fd A socket to use for this SSL ssl A SSL* object from openssl. state The current state of the SSL connection options One or more bufferevent_options Returns: A new bufferevent on success, or NULL on failure. EVENT2_EXPORT_SYMBOL int bufferevent_ssl_renegotiate (struct bufferevent * bev) Tells a bufferevent to begin SSL renegotiation. Author Generated automatically by Doxygen for libevent from the source code. libevent Tue Jan 31 2017 bufferevent_ssl(3)