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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 <unistd.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <errno.h>
#include "trousers/tss.h"
#include "trousers/trousers.h"
#include "trousers_types.h"
#include "trousers_types.h"
#include "spi_utils.h"
#include "capabilities.h"
#include "tsplog.h"
#include "obj.h"
TSS_RESULT
get_tpm_flags(TSS_HCONTEXT tspContext, TSS_HTPM hTPM, UINT32 *volFlags, UINT32 *nonVolFlags)
{
TCPA_DIGEST digest;
TPM_AUTH auth;
TCPA_VERSION version;
TSS_RESULT result;
TSS_HPOLICY hPolicy;
Trspi_HashCtx hashCtx;
if ((result = obj_tpm_get_policy(hTPM, TSS_POLICY_USAGE, &hPolicy)))
return result;
/* do an owner authorized get capability call */
result = Trspi_HashInit(&hashCtx, TSS_HASH_SHA1);
result |= Trspi_Hash_UINT32(&hashCtx, TPM_ORD_GetCapabilityOwner);
if ((result |= Trspi_HashFinal(&hashCtx, digest.digest)))
return result;
if ((result = secret_PerformAuth_OIAP(hTPM, TPM_ORD_GetCapabilityOwner, hPolicy, FALSE,
&digest, &auth)))
return result;
if ((result = TCS_API(tspContext)->GetCapabilityOwner(tspContext, &auth, &version,
nonVolFlags, volFlags)))
return result;
result = Trspi_HashInit(&hashCtx, TSS_HASH_SHA1);
result |= Trspi_Hash_UINT32(&hashCtx, result);
result |= Trspi_Hash_UINT32(&hashCtx, TPM_ORD_GetCapabilityOwner);
result |= Trspi_Hash_VERSION(&hashCtx, (TSS_VERSION *)&version);
result |= Trspi_Hash_UINT32(&hashCtx, *nonVolFlags);
result |= Trspi_Hash_UINT32(&hashCtx, *volFlags);
if ((result |= Trspi_HashFinal(&hashCtx, digest.digest)))
return result;
return obj_policy_validate_auth_oiap(hPolicy, &digest, &auth);
}
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