NAME
Tspi_TPM_PcrExtend - extend a PCR register and optionally write the PCR
event log.
SYNOPSIS
#include <tss/platform.h>
#include <tss/tcpa_defines.h>
#include <tss/tcpa_typedef.h>
#include <tss/tcpa_struct.h>
#include <tss/tss_typedef.h>
#include <tss/tss_structs.h>
#include <tss/tspi.h>
TSS_RESULT Tspi_TPM_PcrExtend(TSS_HTPM hTPM, UINT32 ulPcrIndex,
UINT32 ulPcrDataLength, BYTE* pbPcrData,
TSS_PCR_EVENT* pPcrEvent,
UINT32* pulPcrValueLength, BYTE** prgbPcrValue);
DESCRIPTION
Tspi_TPM_PcrExtend extends a PCR register and writes the PCR event log
if one is supplied by the user.
PARAMETERS
hTPM
The hTPM parameter is used to specify the handle of the TPM object. The
command to get the TPM to test itself will be sent here.
ulPcrIndex
The ulPcrIndex parameter is the index of the PCR to extend.
ulPcrDataLength
The ulPcrDataLength parameter is the length in bytes of the pbPcrData
parameter.
pbPcrData
The pbPcrData parameter is a pointer to data to be hashed by the TSS,
which will be used in the extend operation.
pPcrEvent
The pPcrEvent parameter is the TSS_PCR_EVENT structure to be passed to
the TCS to record the extend event. If pPcrEvent is not NULL, the
application should fill out the members of the structure that it cares
about.
pulPcrValueLength
The pulPcrValueLength parameter receives the length in bytes of the
prgbPcrValue parameter.
prgbPcrValue
The prgbPcrValue receives a pointer to the memory block containing the
PCR data after the extend operation.
RETURN CODES
Tspi_TPM_PcrExtend returns TSS_SUCCESS on success, otherwise one of the
following values is returned:
TSS_E_INVALID_HANDLE
hTPM is not a valid handle.
TSS_E_INTERNAL_ERROR
An internal SW error has been detected.
TSS_E_BAD_PARAMETER
One or more parameters is bad.
CONFORMING TO
Tspi_TPM_PcrExtend conforms to the Trusted Computing Group Software
Specification version 1.1 Golden
SEE ALSO
Tspi_TPM_PcrRead(3).