NAME         top

       gnutls_handshake_set_max_packet_length - API function

SYNOPSIS         top

       #include <gnutls/gnutls.h>

       void gnutls_handshake_set_max_packet_length(gnutls_session_t session,
       size_t max);

ARGUMENTS         top

       gnutls_session_t session
                   is a gnutls_session_t type.

       size_t max  is the maximum number.

DESCRIPTION         top

       This function will set the maximum size of all handshake messages.
       Handshakes over this size are rejected with
       GNUTLS_E_HANDSHAKE_TOO_LARGE error code.  The default value is 128kb
       which is typically large enough.  Set this to 0 if you do not want to
       set an upper limit.

       The reason for restricting the handshake message sizes are to limit
       Denial of Service attacks.

       Note that the maximum handshake size was increased to 128kb from 48kb
       in GnuTLS 3.5.5.

REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2018 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         top

       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 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       tarball gnutls-3.6.2.tar.xz fetched from
       ⟨⟩ on 2018-04-30.  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail

gnutls                             g3n.u6t.l2s_handshake_set_max_packet_length(3)