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

       The SSL_SESSION_get_protocol_version() function was added in OpenSSL 1.1.0.  The
       SSL_SESSION_set_protocol_version() function was added in OpenSSL 1.1.1.

COPYRIGHT

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

       Licensed under the Apache License 2.0 (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>.