NAME

       gnutls_dtls_set_data_mtu - API function

SYNOPSIS

       #include <gnutls/dtls.h>

       int gnutls_dtls_set_data_mtu(gnutls_session_t session, unsigned int mtu);

ARGUMENTS

       gnutls_session_t session
                   is a gnutls_session_t type.

       unsigned int mtu
                   The maximum unencrypted transfer unit of the session

DESCRIPTION

       This  function  will  set  the  maximum  size of the *unencrypted* records which will be sent over a DTLS
       session. It is equivalent to calculating the DTLS packet overhead with the current encryption parameters,
       and calling gnutls_dtls_set_mtu() with that value. In particular, this means that you may  need  to  call
       this  function  again  after  any  negotiation or renegotiation, in order to ensure that the MTU is still
       sufficient to account for the new protocol overhead.

       In most cases you only need to call gnutls_dtls_set_mtu() with the maximum MTU of your transport layer.

RETURNS

       GNUTLS_E_SUCCESS (0) on success, or a negative error code.

SINCE

       3.1

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: https://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2023 Free Software Foundation, Inc., and others.
       Copying and distribution of this file, with or without modification, are permitted in any medium  without
       royalty provided the copyright notice and this notice are preserved.

SEE ALSO

       The  full  documentation  for  gnutls  is  maintained as a Texinfo manual.  If the /usr/share/doc/gnutls/
       directory does not contain the HTML form visit

       https://www.gnutls.org/manual/

gnutls                                                3.8.3                          gnutls_dtls_set_data_mtu(3)