Tbsip_Submit_Command function

Submits a Trusted Platform Module (TPM) command to TPM Base Services (TBS) for processing.

Syntax

TBS_RESULT Tbsip_Submit_Command(
  TBS_HCONTEXT         hContext,
  TBS_COMMAND_LOCALITY Locality,
  TBS_COMMAND_PRIORITY Priority,
  PCBYTE               pabCommand,
  UINT32               cbCommand,
  PBYTE                pabResult,
  PUINT32              pcbResult
);

Parameters

hContext

The handle of the context that is submitting the command.

Locality

Used to set the locality for the TPM command. This must be one of the following values.

Value Meaning
TBS_COMMAND_LOCALITY_ZERO
0 (0x0)
Locality zero. This is the only locality currently supported.
TBS_COMMAND_LOCALITY_ONE
1 (0x1)
Locality one.
TBS_COMMAND_LOCALITY_TWO
2 (0x2)
Locality two.
TBS_COMMAND_LOCALITY_THREE
3 (0x3)
Locality three.
TBS_COMMAND_LOCALITY_FOUR
4 (0x4)
Locality four.

Priority

The priority level that the command should have. This parameter can be one of the following values.

Value Meaning
TBS_COMMAND_PRIORITY_LOW
100 (0x64)
Used for low priority application use.
TBS_COMMAND_PRIORITY_NORMAL
200 (0xC8)
Used for normal priority application use.
TBS_COMMAND_PRIORITY_SYSTEM
400 (0x190)
Used for system tasks that access the TPM.
TBS_COMMAND_PRIORITY_HIGH
300 (0x12C)
Used for high priority application use.
TBS_COMMAND_PRIORITY_MAX
2147483648 (0x80000000)
Used for tasks that originate from the power management system.

pabCommand

A pointer to a buffer that contains the TPM command to process.

cbCommand

The length, in bytes, of the command.

pabResult

A pointer to a buffer to receive the result of the TPM command. This buffer can be the same as pabCommand.

pcbResult

An integer that, on input, specifies the size, in bytes, of the result buffer. This value is set when the submit command returns. If the supplied buffer is too small, this parameter, on output, is set to the required size, in bytes, for the result.

Return Value

If the function succeeds, the function returns TBS_SUCCESS.

A command can be submitted successfully and still fail at the TPM. In this case, the failure code is returned as a standard TPM error in the result buffer.

If the function fails, it returns a TBS return code that indicates the error.

Return code/value Description
TBS_SUCCESS
0 (0x0)
The function was successful.
TBS_E_BAD_PARAMETER
2150121474 (0x80284002)
One or more parameter values are not valid.
TBS_E_BUFFER_TOO_LARGE
2150121486 (0x8028400E)
The input or output buffer is too large.
TBS_E_INTERNAL_ERROR
2150121473 (0x80284001)
An internal software error occurred.
TBS_E_INSUFFICIENT_BUFFER
2150121477 (0x80284005)
The specified output buffer is too small.
TBS_E_INVALID_CONTEXT
2150121476 (0x80284004)
The specified context handle does not refer to a valid context.
TBS_E_INVALID_OUTPUT_POINTER
2150121475 (0x80284003)
A specified output pointer is not valid.
TBS_E_IOERROR
2150121478 (0x80284006)
An error occurred while communicating with the TPM.

Requirements

   
Windows version Windows Vista [desktop apps only] Windows Server 2008 [desktop apps only]
Target Platform Windows
Header tbs.h
Library Tbs.lib
DLL Tbs.dll