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Tspi_TPM_PcrRead(3)   DragonFly Library Functions Manual   Tspi_TPM_PcrRead(3)

                   TCG Software Stack Developer's Reference

NAME
       Tspi_TPM_PcrRead - read the value in a PCR register

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_PcrRead(TSS_HTPM hTPM,              UINT32 ulPcrIndex,
                                   UINT32*  pulPcrValueLength, BYTE** prgbPcrValue);

DESCRIPTION
       Tspi_TPM_PcrRead reads a PCR register to find the current values.

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 read.

   pulPcrValueLength
       The pulPcrValueLength parameter receives the length in bytes of the
       prgbPcrValue parameter.

   prgbPcrValue
       The prgbPcrValue parameter receives a pointer to the memory block
       containing the PCR data.

RETURN CODES
       Tspi_TPM_PcrRead 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_PcrRead conforms to the Trusted Computing Group Software
       Specification version 1.1 Golden

SEE ALSO
       Tspi_TPM_PcrExtend(3).

TSS 1.1                           2004-05-25               Tspi_TPM_PcrRead(3)