pal_entropy.c

00001 /*******************************************************************************
00002 * Copyright 2019 ARM Ltd.
00003 *
00004 * Licensed under the Apache License, Version 2.0 (the "License");
00005 * you may not use this file except in compliance with the License.
00006 * You may obtain a copy of the License at
00007 *
00008 *     http://www.apache.org/licenses/LICENSE-2.0
00009 *
00010 * Unless required by applicable law or agreed to in writing, software
00011 * distributed under the License is distributed on an "AS IS" BASIS,
00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013 * See the License for the specific language governing permissions and
00014 * limitations under the License.
00015 *******************************************************************************/
00016 
00017 #include "pal.h"
00018 #include "pal_plat_entropy.h"
00019 #include "mbed_trace.h"
00020 
00021 #define TRACE_GROUP "PAL"
00022 
00023 palStatus_t pal_osEntropyInject(const uint8_t *entropyBuf, size_t bufSizeBytes)
00024 {
00025     PAL_VALIDATE_ARGUMENTS(NULL == entropyBuf);
00026     if (PAL_PLAT_MAX_ENTROPY_SIZE < bufSizeBytes)
00027     {
00028         return PAL_ERR_ENTROPY_TOO_LARGE;
00029     }
00030     return pal_plat_osEntropyInject(entropyBuf, bufSizeBytes);
00031 }