1e71b7053SJung-uk Kim=pod 2e71b7053SJung-uk Kim 3e71b7053SJung-uk Kim=head1 NAME 4e71b7053SJung-uk Kim 5e71b7053SJung-uk KimDTLS_get_data_mtu - Get maximum data payload size 6e71b7053SJung-uk Kim 7e71b7053SJung-uk Kim=head1 SYNOPSIS 8e71b7053SJung-uk Kim 9e71b7053SJung-uk Kim #include <openssl/ssl.h> 10e71b7053SJung-uk Kim 11e71b7053SJung-uk Kim size_t DTLS_get_data_mtu(const SSL *ssl); 12e71b7053SJung-uk Kim 13e71b7053SJung-uk Kim=head1 DESCRIPTION 14e71b7053SJung-uk Kim 15e71b7053SJung-uk KimThis function obtains the maximum data payload size for the established 16e71b7053SJung-uk KimDTLS connection B<ssl>, based on the DTLS record MTU and the overhead 17e71b7053SJung-uk Kimof the DTLS record header, encryption and authentication currently in use. 18e71b7053SJung-uk Kim 19e71b7053SJung-uk Kim=head1 RETURN VALUES 20e71b7053SJung-uk Kim 21e71b7053SJung-uk KimReturns the maximum data payload size on success, or 0 on failure. 22e71b7053SJung-uk Kim 23e71b7053SJung-uk Kim=head1 HISTORY 24e71b7053SJung-uk Kim 25*6935a639SJung-uk KimThe DTLS_get_data_mtu() function was added in OpenSSL 1.1.1. 26e71b7053SJung-uk Kim 27e71b7053SJung-uk Kim=head1 COPYRIGHT 28e71b7053SJung-uk Kim 29e71b7053SJung-uk KimCopyright 2016 The OpenSSL Project Authors. All Rights Reserved. 30e71b7053SJung-uk Kim 31e71b7053SJung-uk KimLicensed under the OpenSSL license (the "License"). You may not use 32e71b7053SJung-uk Kimthis file except in compliance with the License. You can obtain a copy 33e71b7053SJung-uk Kimin the file LICENSE in the source distribution or at 34e71b7053SJung-uk KimL<https://www.openssl.org/source/license.html>. 35e71b7053SJung-uk Kim 36e71b7053SJung-uk Kim=cut 37