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/*
* FreeRTOS V202212.00
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
* https://github.com/FreeRTOS
*
*/
#include "logging_levels.h"
#define LIBRARY_LOG_NAME "MbedTLSRNGP11"
#define LIBRARY_LOG_LEVEL LOG_ERROR
#include "logging_stack.h"
/**
* @file mbedtls_rng_pkcs11.c
* @brief Implements an mbedtls RNG callback using the PKCS#11 API
*/
#include "core_pkcs11_config.h"
#include "core_pkcs11.h"
/*-----------------------------------------------------------*/
int lMbedCryptoRngCallbackPKCS11( void * pvCtx,
unsigned char * pucOutput,
size_t uxLen )
{
int lRslt;
CK_FUNCTION_LIST_PTR pxFunctionList = NULL;
CK_SESSION_HANDLE * pxSessionHandle = ( CK_SESSION_HANDLE * ) pvCtx;
if( pucOutput == NULL )
{
lRslt = -1;
}
else if( pvCtx == NULL )
{
lRslt = -1;
LogError( ( "pvCtx must not be NULL." ) );
}
else
{
lRslt = ( int ) C_GetFunctionList( &pxFunctionList );
}
if( ( lRslt != CKR_OK ) ||
( pxFunctionList == NULL ) ||
( pxFunctionList->C_GenerateRandom == NULL ) )
{
lRslt = -1;
}
else
{
lRslt = ( int ) pxFunctionList->C_GenerateRandom( *pxSessionHandle, pucOutput, uxLen );
}
return lRslt;
}
/*-----------------------------------------------------------*/
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