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/*
* Copyright (C) 2000-2012 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/>
*
*/
#ifndef GNUTLS_CONSTATE_H
#define GNUTLS_CONSTATE_H
int _gnutls_epoch_set_cipher_suite(gnutls_session_t session, int epoch_rel,
const uint8_t suite[2]);
int _gnutls_epoch_set_compression(gnutls_session_t session, int epoch_rel,
gnutls_compression_method_t comp_algo);
int _gnutls_epoch_get_compression(gnutls_session_t session, int epoch_rel);
void _gnutls_epoch_set_null_algos(gnutls_session_t session,
record_parameters_st * params);
int _gnutls_epoch_set_keys(gnutls_session_t session, uint16_t epoch);
int _gnutls_connection_state_init(gnutls_session_t session);
int _gnutls_read_connection_state_init(gnutls_session_t session);
int _gnutls_write_connection_state_init(gnutls_session_t session);
int _gnutls_epoch_get(gnutls_session_t session, unsigned int epoch_rel,
record_parameters_st ** params_out);
int _gnutls_epoch_alloc(gnutls_session_t session, uint16_t epoch,
record_parameters_st ** out);
void _gnutls_epoch_gc(gnutls_session_t session);
void _gnutls_epoch_free(gnutls_session_t session,
record_parameters_st * state);
static inline int _gnutls_epoch_is_valid(gnutls_session_t session,
int epoch)
{
record_parameters_st *params;
int ret;
ret = _gnutls_epoch_get(session, epoch, ¶ms);
if (ret < 0)
return 0;
return 1;
}
static inline int _gnutls_epoch_refcount_inc(gnutls_session_t session,
int epoch)
{
record_parameters_st *params;
int ret;
ret = _gnutls_epoch_get(session, epoch, ¶ms);
if (ret < 0)
return ret;
params->usage_cnt++;
return params->epoch;
}
static inline int _gnutls_epoch_refcount_dec(gnutls_session_t session,
uint16_t epoch)
{
record_parameters_st *params;
int ret;
ret = _gnutls_epoch_get(session, epoch, ¶ms);
if (ret < 0)
return ret;
params->usage_cnt--;
if (params->usage_cnt < 0)
return GNUTLS_E_INTERNAL_ERROR;
return 0;
}
#endif
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