Fapi_NvWrite

NAME

Fapi_NvWrite - Fapi_NvWrite

SYNOPSIS

Functions

TSS2_RC Fapi_NvWrite (FAPI_CONTEXT *context, char const *path, uint8_t const *data, size_t size)
TSS2_RC Fapi_NvWrite_Async (FAPI_CONTEXT *context, char const *path, uint8_t const *data, size_t size)
TSS2_RC Fapi_NvWrite_Finish (FAPI_CONTEXT *context)

Detailed Description

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

Function Documentation

Fapi_NvWrite (FAPI_CONTEXT * context, char const * nvPath, uint8_t const *data, size_t size)

One-Call function for Fapi_NvWrite

Writes data to a ’regular’ (not pin, extend or counter) NV index.

Parameters

context The FAPI_CONTEXT
nvPath The path of the NV index to write
data The data to write to the NV index
size The size of data in bytes

Return values

TSS2_RC_SUCCESS if the function call was a success.
TSS2_FAPI_RC_BAD_REFERENCE if context, nvPath, or data is NULL.
TSS2_FAPI_RC_BAD_CONTEXT if context corruption is detected.
TSS2_FAPI_RC_BAD_PATH if nvPath is not found.
TSS2_FAPI_RC_NV_EXCEEDED if the NV is not large enough for the data to be written.
TSS2_FAPI_RC_NV_WRONG_TYPE if the NV index is not a ’regular’ one.
TSS2_FAPI_RC_NV_NOT_WRITEABLE if the NV is not a writeable index.
TSS2_FAPI_RC_POLICY_UNKNOWN if the policy is unknown.
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_BAD_VALUE if an invalid value was passed into the function.
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_FAPI_RC_GENERAL_FAILURE if an internal error occurred.
TSS2_FAPI_RC_AUTHORIZATION_UNKNOWN if a required authorization callback is not set.
TSS2_FAPI_RC_AUTHORIZATION_FAILED if the authorization attempt fails.
TSS2_ESYS_RC_* possible error codes of ESAPI.
TSS2_FAPI_RC_NOT_PROVISIONED FAPI was not provisioned.

Fapi_NvWrite_Async (FAPI_CONTEXT * context, char const * nvPath, uint8_tconst * data, size_t size)

Asynchronous function for Fapi_NvWrite

Writes data to a ’regular’ (not pin, extend or counter) NV index.

Call Fapi_NvWrite_Finish to finish the execution of this command.

Parameters

context The FAPI_CONTEXT
nvPath The path of the NV index to write
data The data to write to the NV index
size The size of data in bytes

Return values

TSS2_RC_SUCCESS if the function call was a success.
TSS2_FAPI_RC_BAD_REFERENCE if context, nvPath, or data is NULL.
TSS2_FAPI_RC_BAD_CONTEXT if context corruption is detected.
TSS2_FAPI_RC_BAD_PATH if nvPath is not found.
TSS2_FAPI_RC_NV_EXCEEDED if the NV is not large enough for the data to be written.
TSS2_FAPI_RC_NV_WRONG_TYPE if the NV index is not a ’regular’ one.
TSS2_FAPI_RC_NV_NOT_WRITEABLE if the NV is not a writeable index.
TSS2_FAPI_RC_POLICY_UNKNOWN if the policy is unknown.
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.

Fapi_NvWrite_Finish (FAPI_CONTEXT * context)

Asynchronous finish function for Fapi_NvWrite

This function should be called after a previous Fapi_NvWrite.

Parameters

context The FAPI_CONTEXT

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_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_FAPI_RC_BAD_PATH if a path is used in inappropriate context or contains illegal characters.
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_FAPI_RC_GENERAL_FAILURE if an internal error occurred.
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_POLICY_UNKNOWN if policy search for a certain policy digest was not successful.
TSS2_ESYS_RC_* possible error codes of ESAPI.
TSS2_FAPI_RC_NOT_PROVISIONED FAPI was not provisioned.

Author

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