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/*
* Copyright (C) 2001-2012 Free Software Foundation, 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/>
*
*/
#include "gnutls_int.h"
#ifdef ENABLE_ANON
#include "errors.h"
#include <auth/anon.h>
#include "auth.h"
#include "dh.h"
#include "num.h"
#include "mpi.h"
/**
* gnutls_anon_free_server_credentials:
* @sc: is a #gnutls_anon_server_credentials_t type.
*
* Free a gnutls_anon_server_credentials_t structure.
**/
void
gnutls_anon_free_server_credentials(gnutls_anon_server_credentials_t sc)
{
if (sc->deinit_dh_params) {
gnutls_dh_params_deinit(sc->dh_params);
}
gnutls_free(sc);
}
/**
* gnutls_anon_allocate_server_credentials:
* @sc: is a pointer to a #gnutls_anon_server_credentials_t type.
*
* Allocate a gnutls_anon_server_credentials_t structure.
*
* Returns: %GNUTLS_E_SUCCESS on success, or an error code.
**/
int
gnutls_anon_allocate_server_credentials(gnutls_anon_server_credentials_t *
sc)
{
*sc = gnutls_calloc(1, sizeof(anon_server_credentials_st));
return 0;
}
/**
* gnutls_anon_free_client_credentials:
* @sc: is a #gnutls_anon_client_credentials_t type.
*
* Free a gnutls_anon_client_credentials_t structure.
**/
void
gnutls_anon_free_client_credentials(gnutls_anon_client_credentials_t sc)
{
}
static struct gnutls_anon_client_credentials_st anon_dummy_struct;
static const gnutls_anon_client_credentials_t anon_dummy =
&anon_dummy_struct;
/**
* gnutls_anon_allocate_client_credentials:
* @sc: is a pointer to a #gnutls_anon_client_credentials_t type.
*
* Allocate a gnutls_anon_client_credentials_t structure.
*
* Returns: %GNUTLS_E_SUCCESS on success, or an error code.
**/
int
gnutls_anon_allocate_client_credentials(gnutls_anon_client_credentials_t *
sc)
{
/* anon_dummy is only there for *sc not to be null.
* it is not used at all;
*/
*sc = anon_dummy;
return 0;
}
/**
* gnutls_anon_set_server_dh_params:
* @res: is a gnutls_anon_server_credentials_t type
* @dh_params: The Diffie-Hellman parameters.
*
* This function will set the Diffie-Hellman parameters for an
* anonymous server to use. These parameters will be used in
* Anonymous Diffie-Hellman cipher suites.
*
* Deprecated: This function is unnecessary and discouraged on GnuTLS 3.6.0
* or later. Since 3.6.0, DH parameters are negotiated
* following RFC7919.
**/
void
gnutls_anon_set_server_dh_params(gnutls_anon_server_credentials_t res,
gnutls_dh_params_t dh_params)
{
if (res->deinit_dh_params) {
res->deinit_dh_params = 0;
gnutls_dh_params_deinit(res->dh_params);
res->dh_params = NULL;
}
res->dh_params = dh_params;
res->dh_sec_param = gnutls_pk_bits_to_sec_param(GNUTLS_PK_DH, _gnutls_mpi_get_nbits(dh_params->params[0]));
}
/**
* gnutls_anon_set_server_known_dh_params:
* @res: is a gnutls_anon_server_credentials_t type
* @sec_param: is an option of the %gnutls_sec_param_t enumeration
*
* This function will set the Diffie-Hellman parameters for an
* anonymous server to use. These parameters will be used in
* Anonymous Diffie-Hellman cipher suites and will be selected from
* the FFDHE set of RFC7919 according to the security level provided.
*
* Deprecated: This function is unnecessary and discouraged on GnuTLS 3.6.0
* or later. Since 3.6.0, DH parameters are negotiated
* following RFC7919.
*
* Returns: On success, %GNUTLS_E_SUCCESS (0) is returned, otherwise a
* negative error value.
*
* Since: 3.5.6
**/
int
gnutls_anon_set_server_known_dh_params(gnutls_anon_server_credentials_t res,
gnutls_sec_param_t sec_param)
{
res->dh_sec_param = sec_param;
return 0;
}
/**
* gnutls_anon_set_server_params_function:
* @res: is a gnutls_certificate_credentials_t type
* @func: is the function to be called
*
* This function will set a callback in order for the server to get
* the Diffie-Hellman parameters for anonymous authentication. The
* callback should return %GNUTLS_E_SUCCESS (0) on success.
*
* Deprecated: This function is unnecessary and discouraged on GnuTLS 3.6.0
* or later. Since 3.6.0, DH parameters are negotiated
* following RFC7919.
*
**/
void
gnutls_anon_set_server_params_function(gnutls_anon_server_credentials_t
res, gnutls_params_function * func)
{
res->params_func = func;
}
/**
* gnutls_anon_set_params_function:
* @res: is a gnutls_anon_server_credentials_t type
* @func: is the function to be called
*
* This function will set a callback in order for the server to get
* the Diffie-Hellman or RSA parameters for anonymous authentication.
* The callback should return %GNUTLS_E_SUCCESS (0) on success.
*
* Deprecated: This function is unnecessary and discouraged on GnuTLS 3.6.0
* or later. Since 3.6.0, DH parameters are negotiated
* following RFC7919.
*
**/
void
gnutls_anon_set_params_function(gnutls_anon_server_credentials_t res,
gnutls_params_function * func)
{
res->params_func = func;
}
#endif
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