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The real peer certificate is copied into a x509_buf in the ssl_cache_entry and reinstated upon cache retrieval. The information about the rest of the certificate chain is lost in the process. As the handshake (and certificate verification) has already been performed, no issue is foreseen.
118 lines
3.3 KiB
C
118 lines
3.3 KiB
C
/**
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* \file ssl_cache.h
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*
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* \brief SSL session cache implementation
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*
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* Copyright (C) 2006-2012, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef POLARSSL_SSL_CACHE_H
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#define POLARSSL_SSL_CACHE_H
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#include "ssl.h"
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#define SSL_CACHE_DEFAULT_TIMEOUT 86400 /*!< 1 day */
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#define SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /*!< Maximum entries in cache */
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct _ssl_cache_context ssl_cache_context;
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typedef struct _ssl_cache_entry ssl_cache_entry;
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/**
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* \brief This structure is used for storing cache entries
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*/
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struct _ssl_cache_entry
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{
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time_t timestamp; /*!< entry timestamp */
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ssl_session session; /*!< entry session */
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x509_buf peer_cert; /*!< entry peer_cert */
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ssl_cache_entry *next; /*!< chain pointer */
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};
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/**
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* \brief Cache context
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*/
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struct _ssl_cache_context
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{
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ssl_cache_entry *chain; /*!< start of the chain */
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int timeout; /*!< cache entry timeout */
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int max_entries; /*!< maximum entries */
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};
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/**
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* \brief Initialize an SSL cache context
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*
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* \param cache SSL cache context
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*/
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void ssl_cache_init( ssl_cache_context *cache );
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/**
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* \brief Cache get callback implementation
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*
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* \param data SSL cache context
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* \param session session to retrieve entry for
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*/
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int ssl_cache_get( void *data, ssl_session *session );
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/**
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* \brief Cache set callback implementation
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*
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* \param data SSL cache context
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* \param session session to store entry for
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*/
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int ssl_cache_set( void *data, const ssl_session *session );
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/**
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* \brief Set the cache timeout
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* (Default: SSL_CACHE_DEFAULT_TIMEOUT (1 day))
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*
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* A timeout of 0 indicates no timeout.
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*
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* \param cache SSL cache context
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* \param timeout cache entry timeout
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*/
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void ssl_cache_set_timeout( ssl_cache_context *cache, int timeout );
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/**
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* \brief Set the cache timeout
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* (Default: SSL_CACHE_DEFAULT_MAX_ENTRIES (50))
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*
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* \param cache SSL cache context
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* \param max cache entry maximum
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*/
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void ssl_cache_set_max_entries( ssl_cache_context *cache, int max );
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/**
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* \brief Free referenced items in a cache context and clear memory
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*
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* \param cache SSL cache context
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*/
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void ssl_cache_free( ssl_cache_context *cache );
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#ifdef __cplusplus
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}
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#endif
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#endif /* ssl_cache.h */
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