mirror of
https://github.com/espressif/openthread.git
synced 2026-06-05 21:14:49 +00:00
Jonathan Hui
44350178ad
- Add a top-level file named AUTHORS which identifies the copyright holders of the project.
90 lines
2.9 KiB
C
90 lines
2.9 KiB
C
/*
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* Copyright (c) 2016, The OpenThread Authors.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file
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* @brief
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* This file includes the platform abstraction for true random number generation.
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*/
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#ifndef RANDOM_H_
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#define RANDOM_H_
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#include <stdint.h>
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#include <openthread-types.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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* @defgroup random Random
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* @ingroup platform
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*
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* @brief
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* This module includes the platform abstraction to support critical sections.
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*
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* @{
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*
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*/
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/**
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* Get a 32-bit random value.
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*
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* @returns A 32-bit random value.
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*
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*/
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uint32_t otPlatRandomGet(void);
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/**
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* Get true random stream.
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*
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* @param[in] aInputLength The expected size of random values.
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* @param[out] aOutput A pointer to the buffer for the generated random stream. The pointer should never be NULL.
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* @param[out] aOutputLength A pointer to the generated size of random stream.
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* It is supposed to be the same as aInputLength, but maybe less than aInputLength.
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* The pointer should never be NULL.
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*
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* @retval kThreadError_None Generate random successfully.
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* @retval kThreadError_Fail Generate random fail.
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* @retval kThreadError_InvalidArgs Invalid args.
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*/
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ThreadError otPlatRandomSecureGet(uint16_t aInputLength, uint8_t *aOutput, uint16_t *aOutputLength);
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/**
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* @}
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*
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*/
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#ifdef __cplusplus
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} // end of extern "C"
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#endif
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#endif // RANDOM_H_
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