Provided by: libtss2-doc_3.2.1-3ubuntu1_all 
NAME
Esys_NV_Extend - The ESAPI function for the TPM2_NV_Extend command.
SYNOPSIS
Functions
TSS2_RC Esys_NV_Extend_Async (ESYS_CONTEXT *esysContext, ESYS_TR authHandle, ESYS_TR
nvIndex, ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3, const
TPM2B_MAX_NV_BUFFER *data)
TSS2_RC Esys_NV_Extend (ESYS_CONTEXT *esysContext, ESYS_TR authHandle, ESYS_TR nvIndex,
ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3, const TPM2B_MAX_NV_BUFFER *data)
TSS2_RC Esys_NV_Extend_Finish (ESYS_CONTEXT *esysContext)
Detailed Description
ESAPI function to invoke the TPM2_NV_Extend command either as a one-call or in an
asynchronous manner.
Function Documentation
TSS2_RC Esys_NV_Extend (ESYS_CONTEXT * esysContext, ESYS_TR authHandle, ESYS_TR nvIndex,
ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3, const TPM2B_MAX_NV_BUFFER * data)
One-Call function for TPM2_NV_Extend
This function invokes the TPM2_NV_Extend command in a one-call variant. This means the
function will block until the TPM response is available. All input parameters are const.
The memory for non-simple output parameters is allocated by the function implementation.
Parameters
esysContext The ESYS_CONTEXT.
authHandle Handle indicating the source of the authorization value.
nvIndex The NV Index to extend.
shandle1 Session handle for authorization of authHandle
shandle2 Second session handle.
shandle3 Third session handle.
data The data to extend.
Return values
TSS2_RC_SUCCESS if the function call was a success.
TSS2_ESYS_RC_BAD_REFERENCE if the esysContext or required input pointers or required
output handle references are NULL.
TSS2_ESYS_RC_BAD_CONTEXT if esysContext corruption is detected.
TSS2_ESYS_RC_MEMORY if the ESAPI cannot allocate enough memory for internal operations
or return parameters.
TSS2_ESYS_RC_BAD_SEQUENCE if the context has an asynchronous operation already
pending.
TSS2_ESYS_RC_INSUFFICIENT_RESPONSE if the TPM's response does not at least contain the
tag, response length, and response code.
TSS2_ESYS_RC_MALFORMED_RESPONSE if the TPM's response is corrupted.
TSS2_ESYS_RC_RSP_AUTH_FAILED if the response HMAC from the TPM did not verify.
TSS2_ESYS_RC_MULTIPLE_DECRYPT_SESSIONS if more than one session has the 'decrypt'
attribute bit set.
TSS2_ESYS_RC_MULTIPLE_ENCRYPT_SESSIONS if more than one session has the 'encrypt'
attribute bit set.
TSS2_ESYS_RC_BAD_TR if any of the ESYS_TR objects are unknown to the ESYS_CONTEXT or
are of the wrong type or if required ESYS_TR objects are ESYS_TR_NONE.
TSS2_ESYS_RC_NO_ENCRYPT_PARAM if one of the sessions has the 'encrypt' attribute set
and the command does not support encryption of the first response parameter.
TSS2_RCs produced by lower layers of the software stack may be returned to the caller
unaltered unless handled internally.
TSS2_RC Esys_NV_Extend_Async (ESYS_CONTEXT * esysContext, ESYS_TR authHandle, ESYS_TR nvIndex,
ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3, const TPM2B_MAX_NV_BUFFER * data)
Asynchronous function for TPM2_NV_Extend
This function invokes the TPM2_NV_Extend command in a asynchronous variant. This means the
function will return as soon as the command has been sent downwards the stack to the TPM.
All input parameters are const. In order to retrieve the TPM's response call
Esys_NV_Extend_Finish.
Parameters
esysContext The ESYS_CONTEXT.
authHandle Handle indicating the source of the authorization value.
nvIndex The NV Index to extend.
shandle1 Session handle for authorization of authHandle
shandle2 Second session handle.
shandle3 Third session handle.
data The data to extend.
Return values
ESYS_RC_SUCCESS if the function call was a success.
TSS2_ESYS_RC_BAD_REFERENCE if the esysContext or required input pointers or required
output handle references are NULL.
TSS2_ESYS_RC_BAD_CONTEXT if esysContext corruption is detected.
TSS2_ESYS_RC_MEMORY if the ESAPI cannot allocate enough memory for internal operations
or return parameters.
TSS2_RCs produced by lower layers of the software stack may be returned to the caller
unaltered unless handled internally.
TSS2_ESYS_RC_MULTIPLE_DECRYPT_SESSIONS if more than one session has the 'decrypt'
attribute bit set.
TSS2_ESYS_RC_MULTIPLE_ENCRYPT_SESSIONS if more than one session has the 'encrypt'
attribute bit set.
TSS2_ESYS_RC_BAD_TR if any of the ESYS_TR objects are unknown to the ESYS_CONTEXT or
are of the wrong type or if required ESYS_TR objects are ESYS_TR_NONE.
TSS2_ESYS_RC_NO_ENCRYPT_PARAM if one of the sessions has the 'encrypt' attribute set
and the command does not support encryption of the first response parameter.
TSS2_RC Esys_NV_Extend_Finish (ESYS_CONTEXT * esysContext)
Asynchronous finish function for TPM2_NV_Extend
This function returns the results of a TPM2_NV_Extend command invoked via
Esys_NV_Extend_Finish. All non-simple output parameters are allocated by the function's
implementation. NULL can be passed for every output parameter if the value is not
required.
Parameters
esysContext The ESYS_CONTEXT.
Return values
TSS2_RC_SUCCESS on success
ESYS_RC_SUCCESS if the function call was a success.
TSS2_ESYS_RC_BAD_REFERENCE if the esysContext or required input pointers or required
output handle references are NULL.
TSS2_ESYS_RC_BAD_CONTEXT if esysContext corruption is detected.
TSS2_ESYS_RC_MEMORY if the ESAPI cannot allocate enough memory for internal operations
or return parameters.
TSS2_ESYS_RC_BAD_SEQUENCE if the context has an asynchronous operation already
pending.
TSS2_ESYS_RC_TRY_AGAIN if the timeout counter expires before the TPM response is
received.
TSS2_ESYS_RC_INSUFFICIENT_RESPONSE if the TPM's response does not at least contain the
tag, response length, and response code.
TSS2_ESYS_RC_RSP_AUTH_FAILED if the response HMAC from the TPM did not verify.
TSS2_ESYS_RC_MALFORMED_RESPONSE if the TPM's response is corrupted.
TSS2_RCs produced by lower layers of the software stack may be returned to the caller
unaltered unless handled internally.
Author
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