1Tspi_TPM_PcrRead(3)        Library Functions Manual        Tspi_TPM_PcrRead(3)
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5                   TCG Software Stack Developer's Reference
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NAME

8       Tspi_TPM_PcrRead - read the value in a PCR register
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SYNOPSIS

11       #include <tss/platform.h>
12       #include <tss/tcpa_defines.h>
13       #include <tss/tcpa_typedef.h>
14       #include <tss/tcpa_struct.h>
15       #include <tss/tss_typedef.h>
16       #include <tss/tss_structs.h>
17       #include <tss/tspi.h>
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19       TSS_RESULT Tspi_TPM_PcrRead(TSS_HTPM hTPM,              UINT32 ulPcrIndex,
20                                   UINT32*  pulPcrValueLength, BYTE** prgbPcrValue);
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DESCRIPTION

25       Tspi_TPM_PcrRead reads a PCR register to find the current values.
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PARAMETERS

29   hTPM
30       The hTPM parameter is used to specify the handle of the TPM object. The
31       command to get the TPM to test itself will be sent here.
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33   ulPcrIndex
34       The ulPcrIndex parameter is the index of the PCR to read.
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36   pulPcrValueLength
37       The pulPcrValueLength parameter receives the length  in  bytes  of  the
38       prgbPcrValue parameter.
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40   prgbPcrValue
41       The  prgbPcrValue parameter receives a pointer to the memory block con‐
42       taining the PCR data.
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RETURN CODES

46       Tspi_TPM_PcrRead returns TSS_SUCCESS on success, otherwise one  of  the
47       following values is returned:
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49       TSS_E_INVALID_HANDLE
50              hTPM is not a valid handle.
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53       TSS_E_INTERNAL_ERROR
54              An internal SW error has been detected.
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57       TSS_E_BAD_PARAMETER
58              One or more parameters is bad.
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CONFORMING TO

62       Tspi_TPM_PcrRead conforms to the Trusted Computing Group Software Spec‐
63       ification version 1.1 Golden
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SEE ALSO

67       Tspi_TPM_PcrExtend(3).
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72TSS 1.1                           2004-05-25               Tspi_TPM_PcrRead(3)
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