/usr/include/mbedtls/ssl_cache.h is in libmbedtls-dev 2.4.2-1+deb9u3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | /**
* \file ssl_cache.h
*
* \brief SSL session cache implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#ifndef MBEDTLS_SSL_CACHE_H
#define MBEDTLS_SSL_CACHE_H
#include "ssl.h"
#if defined(MBEDTLS_THREADING_C)
#include "threading.h"
#endif
/**
* \name SECTION: Module settings
*
* The configuration options you can set for this module are in this section.
* Either change them in config.h or define them on the compiler command line.
* \{
*/
#if !defined(MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT)
#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT 86400 /*!< 1 day */
#endif
#if !defined(MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES)
#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES 50 /*!< Maximum entries in cache */
#endif
/* \} name SECTION: Module settings */
#ifdef __cplusplus
extern "C" {
#endif
typedef struct mbedtls_ssl_cache_context mbedtls_ssl_cache_context;
typedef struct mbedtls_ssl_cache_entry mbedtls_ssl_cache_entry;
/**
* \brief This structure is used for storing cache entries
*/
struct mbedtls_ssl_cache_entry
{
#if defined(MBEDTLS_HAVE_TIME)
mbedtls_time_t timestamp; /*!< entry timestamp */
#endif
mbedtls_ssl_session session; /*!< entry session */
#if defined(MBEDTLS_X509_CRT_PARSE_C)
mbedtls_x509_buf peer_cert; /*!< entry peer_cert */
#endif
mbedtls_ssl_cache_entry *next; /*!< chain pointer */
};
/**
* \brief Cache context
*/
struct mbedtls_ssl_cache_context
{
mbedtls_ssl_cache_entry *chain; /*!< start of the chain */
int timeout; /*!< cache entry timeout */
int max_entries; /*!< maximum entries */
#if defined(MBEDTLS_THREADING_C)
mbedtls_threading_mutex_t mutex; /*!< mutex */
#endif
};
/**
* \brief Initialize an SSL cache context
*
* \param cache SSL cache context
*/
void mbedtls_ssl_cache_init( mbedtls_ssl_cache_context *cache );
/**
* \brief Cache get callback implementation
* (Thread-safe if MBEDTLS_THREADING_C is enabled)
*
* \param data SSL cache context
* \param session session to retrieve entry for
*/
int mbedtls_ssl_cache_get( void *data, mbedtls_ssl_session *session );
/**
* \brief Cache set callback implementation
* (Thread-safe if MBEDTLS_THREADING_C is enabled)
*
* \param data SSL cache context
* \param session session to store entry for
*/
int mbedtls_ssl_cache_set( void *data, const mbedtls_ssl_session *session );
#if defined(MBEDTLS_HAVE_TIME)
/**
* \brief Set the cache timeout
* (Default: MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT (1 day))
*
* A timeout of 0 indicates no timeout.
*
* \param cache SSL cache context
* \param timeout cache entry timeout in seconds
*/
void mbedtls_ssl_cache_set_timeout( mbedtls_ssl_cache_context *cache, int timeout );
#endif /* MBEDTLS_HAVE_TIME */
/**
* \brief Set the maximum number of cache entries
* (Default: MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES (50))
*
* \param cache SSL cache context
* \param max cache entry maximum
*/
void mbedtls_ssl_cache_set_max_entries( mbedtls_ssl_cache_context *cache, int max );
/**
* \brief Free referenced items in a cache context and clear memory
*
* \param cache SSL cache context
*/
void mbedtls_ssl_cache_free( mbedtls_ssl_cache_context *cache );
#ifdef __cplusplus
}
#endif
#endif /* ssl_cache.h */
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