NAME

       SSL_SESSION_get_protocol_version, SSL_SESSION_set_protocol_version - get and set the session protocol
       version

SYNOPSIS

        #include <openssl/ssl.h>

        int SSL_SESSION_get_protocol_version(const SSL_SESSION *s);
        int SSL_SESSION_set_protocol_version(SSL_SESSION *s, int version);

DESCRIPTION

       SSL_SESSION_get_protocol_version() returns the protocol version number used by session s.

       SSL_SESSION_set_protocol_version() sets the protocol version associated with the SSL_SESSION object s to
       the value version. This value should be a version constant such as TLS1_3_VERSION etc. For example, this
       could be used to set up a session based PSK (see SSL_CTX_set_psk_use_session_callback(3)).

RETURN VALUES

       SSL_SESSION_get_protocol_version() returns a number indicating the protocol version used for the session;
       this number matches the constants e.g.  TLS1_VERSION, TLS1_2_VERSION or TLS1_3_VERSION.

       Note that the SSL_SESSION_get_protocol_version() function does not perform a null check on the provided
       session s pointer.

       SSL_SESSION_set_protocol_version() returns 1 on success or 0 on failure.

SEE ALSO

       ssl(7), SSL_CTX_set_psk_use_session_callback(3)

HISTORY

       SSL_SESSION_get_protocol_version() was first added to OpenSSL 1.1.0.  SSL_SESSION_set_protocol_version()
       was first added to OpenSSL 1.1.1.

COPYRIGHT

       Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the OpenSSL license (the "License").  You may not use this file except in compliance with
       the License.  You can obtain a copy in the file LICENSE in the source distribution or at
       <https://www.openssl.org/source/license.html>.