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/*
* Copyright (C) 2017 Red Hat, Inc.
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* The GnuTLS is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
#ifndef GNUTLS_EXT_LIB_H
#define GNUTLS_EXT_LIB_H
#include <gnutls/gnutls.h>
#include "hello_ext.h"
/* Functions to use at the send() or recv() extension function to temporarily
* store and retrieve data related to the extension.
*/
int
_gnutls_hello_ext_set_datum(gnutls_session_t session,
extensions_t id, const gnutls_datum_t *data);
int
_gnutls_hello_ext_get_datum(gnutls_session_t session,
extensions_t id, gnutls_datum_t *data /* constant contents */);
int
_gnutls_hello_ext_get_resumed_datum(gnutls_session_t session,
extensions_t id, gnutls_datum_t *data /* constant contents */);
/* clear up any set data for the extension */
#if 0 /* defined in hello_ext.h */
void
_gnutls_hello_ext_unset_sdata(gnutls_session_t session,
extensions_t id);
#endif
/* Function that will deinitialize the temporal data. Must be set
* as the deinit_func in the hello_ext_entry_st if the functions above
* are used.
*/
void _gnutls_hello_ext_default_deinit(gnutls_ext_priv_data_t priv);
/* Functions to pack and unpack data if they need to be stored at
* session resumption data. Must be set as the pack_func and unpack_func
* of hello_ext_entry_st if the set and get functions above are used,
* and data must be accessible on resumed sessions.
*/
int
_gnutls_hello_ext_default_pack(gnutls_ext_priv_data_t epriv, gnutls_buffer_st *ps);
int
_gnutls_hello_ext_default_unpack(gnutls_buffer_st *ps, gnutls_ext_priv_data_t *epriv);
#endif
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