Functions
TSS2_RC	Fapi_PcrRead (FAPI_CONTEXT context, uint32_t pcrIndex, uint8_t pcrValue, size_t pcrValueSize, char **pcrLog)
TSS2_RC	Fapi_PcrRead_Async (FAPI_CONTEXT *context, uint32_t pcrIndex)
TSS2_RC	Fapi_PcrRead_Finish (FAPI_CONTEXT context, uint8_t pcrValue, size_t pcrValueSize, char **pcrLog)

Detailed Description

FAPI functions to invoke PcrRead either as one-call or in an asynchronous manner.

Function Documentation

One-Call function for Fapi_PcrRead

Reads from a given PCR and returns the value and the event log.

Parameters

[in,out]	context	The FAPI_CONTEXT
[in]	pcrIndex	The index of the PCR to read
[out]	pcrValue	The value of the PCR. May be NULL
[out]	pcrValueSize	The size of value in bytes. May be NULL
[out]	pcrLog	The PCR log. May be NULL

Return values

TSS2_RC_SUCCESS	if the function call was a success.
TSS2_FAPI_RC_BAD_REFERENCE	if context, pcrValue or pcrValueSize is NULL.
TSS2_FAPI_RC_BAD_CONTEXT	if context corruption is detected.
TSS2_FAPI_RC_BAD_VALUE	if pcrIndex is invalid.
TSS2_FAPI_RC_BAD_SEQUENCE	if the context has an asynchronous operation already pending.
TSS2_FAPI_RC_IO_ERROR	if the data cannot be saved.
TSS2_FAPI_RC_MEMORY	if the FAPI cannot allocate enough memory for internal operations or return parameters.
TSS2_FAPI_RC_NO_TPM	if FAPI was initialized in no-TPM-mode via its config file.
TSS2_FAPI_RC_TRY_AGAIN	if an I/O operation is not finished yet and this function needs to be called again.
TSS2_FAPI_RC_AUTHORIZATION_UNKNOWN	if a required authorization callback is not set.
TSS2_FAPI_RC_AUTHORIZATION_FAILED	if the authorization attempt fails.
TSS2_FAPI_RC_GENERAL_FAILURE	if an internal error occurred.
TSS2_FAPI_RC_POLICY_UNKNOWN	if policy search for a certain policy digest was not successful.
TSS2_FAPI_RC_NO_CERT	if an error did occur during certificate downloading.
TSS2_FAPI_RC_PATH_NOT_FOUND	if a FAPI object path was not found during authorization.
TSS2_FAPI_RC_KEY_NOT_FOUND	if a key was not found.
TSS2_ESYS_RC_*	possible error codes of ESAPI.

TSS2_RC Fapi_PcrRead_Async	(	FAPI_CONTEXT *	context,
		uint32_t	pcrIndex )

Asynchronous function for Fapi_PcrRead

Reads from a given PCR and returns the value and the event log.

Call Fapi_PcrRead_Finish to finish the execution of this command.

Parameters

[in,out]	context	The FAPI_CONTEXT
[in]	pcrIndex	The index of the PCR to read

Return values

TSS2_RC_SUCCESS	if the function call was a success.
TSS2_FAPI_RC_BAD_REFERENCE	if context is NULL.
TSS2_FAPI_RC_BAD_CONTEXT	if context corruption is detected.
TSS2_FAPI_RC_BAD_VALUE	if pcrIndex is invalid.
TSS2_FAPI_RC_BAD_SEQUENCE	if the context has an asynchronous operation already pending.
TSS2_FAPI_RC_IO_ERROR	if the data cannot be saved.
TSS2_FAPI_RC_MEMORY	if the FAPI cannot allocate enough memory for internal operations or return parameters.
TSS2_FAPI_RC_NO_TPM	if FAPI was initialized in no-TPM-mode via its config file.
TSS2_ESYS_RC_*	possible error codes of ESAPI.

Asynchronous finish function for Fapi_PcrRead

This function should be called after a previous Fapi_PcrRead_Async.

Parameters

[in,out]	context	The FAPI_CONTEXT
[out]	pcrValue	The value of the PCR. May be NULL
[out]	pcrValueSize	The size of value in bytes. May be NULL
[out]	pcrLog	The PCR log. May be NULL

Return values

TSS2_RC_SUCCESS	if the function call was a success.
TSS2_FAPI_RC_BAD_REFERENCE	if context, pcrValue or pcrValueSize is NULL.
TSS2_FAPI_RC_BAD_CONTEXT	if context corruption is detected.
TSS2_FAPI_RC_BAD_SEQUENCE	if the context has an asynchronous operation already pending.
TSS2_FAPI_RC_IO_ERROR	if the data cannot be saved.
TSS2_FAPI_RC_MEMORY	if the FAPI cannot allocate enough memory for internal operations or return parameters.
TSS2_FAPI_RC_TRY_AGAIN	if the asynchronous operation is not yet complete. Call this function again later.
TSS2_FAPI_RC_BAD_VALUE	if an invalid value was passed into the function.
TSS2_ESYS_RC_*	possible error codes of ESAPI.