linux-sgx-trts-modified/psw/ae/aesm_service/source/aesm/application/aesm_rand.cpp

/*
 * Copyright (C) 2011-2017 Intel Corporation. All rights reserved.
 *
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 * modification, are permitted provided that the following conditions
 * are met:
 *
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 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
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 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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#include <stdint.h>
#include <memory.h>
#include <stdlib.h>
#include "sgx_read_rand.h"
#include "se_wrapper.h"
#include "aesm_rand.h"
#include "AEClass.h"


extern "C" ae_error_t aesm_read_rand(unsigned char *rand_buf, unsigned int length_in_bytes)
{
    // check parameters
    //
    if (!rand_buf || !length_in_bytes)
    {
        return AE_INVALID_PARAMETER;
    }

    sgx_status_t sgx_status = sgx_read_rand(rand_buf, length_in_bytes);

    return sgx_error_to_ae_error(sgx_status);
}