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/*
* Licensed Materials - Property of IBM
*
* trousers - An open source TCG Software Stack
*
* (C) Copyright International Business Machines Corp. 2004
* (C) Christian Kummer 2007
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include "trousers/tss.h"
#include "trousers_types.h"
#include "tcs_tsp.h"
#include "tcsps.h"
#include "tcs_utils.h"
#include "tcs_int_literals.h"
#include "capabilities.h"
#include "tcslog.h"
#include "req_mgr.h"
#include "tcsd_wrap.h"
#include "tcsd.h"
TSS_RESULT
TCSP_Extend_Internal(TCS_CONTEXT_HANDLE hContext, /* in */
TCPA_PCRINDEX pcrNum, /* in */
TCPA_DIGEST inDigest, /* in */
TCPA_PCRVALUE * outDigest) /* out */
{
UINT64 offset = 0;
TSS_RESULT result;
UINT32 paramSize;
BYTE txBlob[TSS_TPM_TXBLOB_SIZE];
LogDebug("Entering Extend");
if ((result = ctx_verify_context(hContext)))
return result;
/* PCRs are numbered 0 - (NUM_PCRS - 1), thus the >= */
if (pcrNum >= tpm_metrics.num_pcrs)
return TCSERR(TSS_E_BAD_PARAMETER);
if (tcsd_options.kernel_pcrs & (1 << pcrNum)) {
LogInfo("PCR %d is configured to be kernel controlled. Extend request denied.",
pcrNum);
return TCSERR(TSS_E_FAIL);
}
if (tcsd_options.firmware_pcrs & (1 << pcrNum)) {
LogInfo("PCR %d is configured to be firmware controlled. Extend request denied.",
pcrNum);
return TCSERR(TSS_E_FAIL);
}
if ((result = tpm_rqu_build(TPM_ORD_Extend, &offset, txBlob, pcrNum, TPM_DIGEST_SIZE,
inDigest.digest, NULL, NULL)))
return result;
if ((result = req_mgr_submit_req(txBlob)))
return result;
result = UnloadBlob_Header(txBlob, ¶mSize);
if (!result) {
result = tpm_rsp_parse(TPM_ORD_Extend, txBlob, paramSize, NULL, outDigest->digest);
}
LogResult("Extend", result);
return result;
}
TSS_RESULT
TCSP_PcrRead_Internal(TCS_CONTEXT_HANDLE hContext, /* in */
TCPA_PCRINDEX pcrNum, /* in */
TCPA_PCRVALUE * outDigest) /* out */
{
UINT64 offset = 0;
TSS_RESULT result;
UINT32 paramSize;
BYTE txBlob[TSS_TPM_TXBLOB_SIZE];
LogDebug("Entering PCRRead");
if ((result = ctx_verify_context(hContext)))
return result;
/* PCRs are numbered 0 - (NUM_PCRS - 1), thus the >= */
if (pcrNum >= tpm_metrics.num_pcrs)
return TCSERR(TSS_E_BAD_PARAMETER);
if ((result = tpm_rqu_build(TPM_ORD_PcrRead, &offset, txBlob, pcrNum, NULL)))
return result;
if ((result = req_mgr_submit_req(txBlob)))
return result;
result = UnloadBlob_Header(txBlob, ¶mSize);
if (!result) {
result = tpm_rsp_parse(TPM_ORD_PcrRead, txBlob, paramSize, NULL, outDigest->digest);
}
LogResult("PCR Read", result);
return result;
}
TSS_RESULT
TCSP_PcrReset_Internal(TCS_CONTEXT_HANDLE hContext, /* in */
UINT32 pcrDataSizeIn, /* in */
BYTE * pcrDataIn) /* in */
{
UINT64 offset = 0;
TSS_RESULT result;
UINT32 paramSize;
BYTE txBlob[TSS_TPM_TXBLOB_SIZE];
LogDebug("Entering PCRReset");
if ((result = ctx_verify_context(hContext)))
return result;
if ((result = tpm_rqu_build(TPM_ORD_PCR_Reset, &offset, txBlob, pcrDataSizeIn, pcrDataIn)))
return result;
if ((result = req_mgr_submit_req(txBlob)))
return result;
result = UnloadBlob_Header(txBlob, ¶mSize);
LogResult("PCR Reset", result);
return result;
}
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