117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/**
|
|
* \file ssl_cache.h
|
|
*
|
|
* \brief SSL session cache implementation
|
|
*
|
|
* Copyright (C) 2006-2012, Brainspark B.V.
|
|
*
|
|
* This file is part of PolarSSL (http://www.polarssl.org)
|
|
* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
#ifndef POLARSSL_SSL_CACHE_H
|
|
#define POLARSSL_SSL_CACHE_H
|
|
|
|
#include "ssl.h"
|
|
|
|
#define SSL_CACHE_DEFAULT_TIMEOUT 86400 /*!< 1 day */
|
|
#define SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /*!< Maximum entries in cache */
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef struct _ssl_cache_context ssl_cache_context;
|
|
typedef struct _ssl_cache_entry ssl_cache_entry;
|
|
|
|
/**
|
|
* \brief This structure is used for storing cache entries
|
|
*/
|
|
struct _ssl_cache_entry
|
|
{
|
|
time_t timestamp; /*!< entry timestamp */
|
|
ssl_session session; /*!< entry session */
|
|
ssl_cache_entry *next; /*!< chain pointer */
|
|
};
|
|
|
|
/**
|
|
* \brief Cache context
|
|
*/
|
|
struct _ssl_cache_context
|
|
{
|
|
ssl_cache_entry *chain; /*!< start of the chain */
|
|
int timeout; /*!< cache entry timeout */
|
|
int max_entries; /*!< maximum entries */
|
|
};
|
|
|
|
/**
|
|
* \brief Initialize an SSL cache context
|
|
*
|
|
* \param cache SSL cache context
|
|
*/
|
|
void ssl_cache_init( ssl_cache_context *cache );
|
|
|
|
/**
|
|
* \brief Cache get callback implementation
|
|
*
|
|
* \param data SSL cache context
|
|
* \param session session to retrieve entry for
|
|
*/
|
|
int ssl_cache_get( void *data, ssl_session *session );
|
|
|
|
/**
|
|
* \brief Cache set callback implementation
|
|
*
|
|
* \param data SSL cache context
|
|
* \param session session to store entry for
|
|
*/
|
|
int ssl_cache_set( void *data, const ssl_session *session );
|
|
|
|
/**
|
|
* \brief Set the cache timeout
|
|
* (Default: SSL_CACHE_DEFAULT_TIMEOUT (1 day))
|
|
*
|
|
* A timeout of 0 indicates no timeout.
|
|
*
|
|
* \param cache SSL cache context
|
|
* \param timeout cache entry timeout
|
|
*/
|
|
void ssl_cache_set_timeout( ssl_cache_context *cache, int timeout );
|
|
|
|
/**
|
|
* \brief Set the cache timeout
|
|
* (Default: SSL_CACHE_DEFAULT_MAX_ENTRIES (50))
|
|
*
|
|
* \param cache SSL cache context
|
|
* \param max cache entry maximum
|
|
*/
|
|
void ssl_cache_set_max_entries( ssl_cache_context *cache, int max );
|
|
|
|
/**
|
|
* \brief Free referenced items in a cache context and clear memory
|
|
*
|
|
* \param cache SSL cache context
|
|
*/
|
|
void ssl_cache_free( ssl_cache_context *cache );
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* ssl_cache.h */
|