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/*
* Licensed Materials - Property of IBM
*
* trousers - An open source TCG Software Stack
*
* (C) Copyright International Business Machines Corp. 2004-2006
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include "trousers/tss.h"
#include "trousers/trousers.h"
#include "trousers_types.h"
#include "spi_utils.h"
#include "capabilities.h"
#include "tsplog.h"
#include "obj.h"
TSS_RESULT
Tspi_TPM_GetRandom(TSS_HTPM hTPM, /* in */
UINT32 ulRandomDataLength, /* in */
BYTE ** prgbRandomData) /* out */
{
TSS_HCONTEXT tspContext;
TSS_RESULT result;
if (prgbRandomData == NULL || ulRandomDataLength > 4096)
return TSPERR(TSS_E_BAD_PARAMETER);
if ((result = obj_tpm_get_tsp_context(hTPM, &tspContext)))
return result;
if (ulRandomDataLength == 0)
return TSS_SUCCESS;
if ((result = TCS_API(tspContext)->GetRandom(tspContext, ulRandomDataLength,
prgbRandomData)))
return result;
if ((result = __tspi_add_mem_entry(tspContext, *prgbRandomData))) {
free(*prgbRandomData);
*prgbRandomData = NULL;
return result;
}
return TSS_SUCCESS;
}
TSS_RESULT
Tspi_TPM_StirRandom(TSS_HTPM hTPM, /* in */
UINT32 ulEntropyDataLength, /* in */
BYTE * rgbEntropyData) /* in */
{
TSS_RESULT result;
TSS_HCONTEXT tspContext;
if (ulEntropyDataLength > 0 && rgbEntropyData == NULL)
return TSPERR(TSS_E_BAD_PARAMETER);
if ((result = obj_tpm_get_tsp_context(hTPM, &tspContext)))
return result;
if ((result = TCS_API(tspContext)->StirRandom(tspContext, ulEntropyDataLength,
rgbEntropyData)))
return result;
return TSS_SUCCESS;
}
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