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3053fea160
On a few of our buildbot instances, we get warnings about the usage of deprecated functions. We should correct these, especially if we're delegating to system versions of the libraries if they're available. However, in order to do that, we need to update our library variant from 2.1.1 so that the non-deprecated alternatives are actually available.
111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/**
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* \file entropy_poll.h
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*
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* \brief Platform-specific and custom entropy polling functions
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*/
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/*
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* Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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#ifndef MBEDTLS_ENTROPY_POLL_H
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#define MBEDTLS_ENTROPY_POLL_H
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Default thresholds for built-in sources, in bytes
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*/
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#define MBEDTLS_ENTROPY_MIN_PLATFORM 32 /**< Minimum for platform source */
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#define MBEDTLS_ENTROPY_MIN_HAVEGE 32 /**< Minimum for HAVEGE */
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#define MBEDTLS_ENTROPY_MIN_HARDCLOCK 4 /**< Minimum for mbedtls_timing_hardclock() */
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#if !defined(MBEDTLS_ENTROPY_MIN_HARDWARE)
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#define MBEDTLS_ENTROPY_MIN_HARDWARE 32 /**< Minimum for the hardware source */
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#endif
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/**
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* \brief Entropy poll callback that provides 0 entropy.
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*/
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#if defined(MBEDTLS_TEST_NULL_ENTROPY)
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int mbedtls_null_entropy_poll( void *data,
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unsigned char *output, size_t len, size_t *olen );
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#endif
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#if !defined(MBEDTLS_NO_PLATFORM_ENTROPY)
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/**
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* \brief Platform-specific entropy poll callback
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*/
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int mbedtls_platform_entropy_poll( void *data,
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unsigned char *output, size_t len, size_t *olen );
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#endif
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#if defined(MBEDTLS_HAVEGE_C)
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/**
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* \brief HAVEGE based entropy poll callback
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*
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* Requires an HAVEGE state as its data pointer.
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*/
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int mbedtls_havege_poll( void *data,
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unsigned char *output, size_t len, size_t *olen );
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#endif
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#if defined(MBEDTLS_TIMING_C)
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/**
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* \brief mbedtls_timing_hardclock-based entropy poll callback
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*/
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int mbedtls_hardclock_poll( void *data,
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unsigned char *output, size_t len, size_t *olen );
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#endif
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#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
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/**
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* \brief Entropy poll callback for a hardware source
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*
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* \warning This is not provided by mbed TLS!
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* See \c MBEDTLS_ENTROPY_HARDWARE_ALT in config.h.
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*
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* \note This must accept NULL as its first argument.
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*/
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int mbedtls_hardware_poll( void *data,
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unsigned char *output, size_t len, size_t *olen );
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#endif
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#if defined(MBEDTLS_ENTROPY_NV_SEED)
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/**
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* \brief Entropy poll callback for a non-volatile seed file
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*
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* \note This must accept NULL as its first argument.
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*/
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int mbedtls_nv_seed_poll( void *data,
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unsigned char *output, size_t len, size_t *olen );
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* entropy_poll.h */
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