SecurityPkg/Library/Tpm2CommandLib/Tpm2Test.c

/** @file
  Implement TPM2 Test related command.

Copyright (c) 2013, Intel Corporation. All rights reserved. <BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution.  The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#include <IndustryStandard/UefiTcgPlatform.h>
#include <Library/Tpm2CommandLib.h>
#include <Library/Tpm2DeviceLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>

#pragma pack(1)

typedef struct {
  TPM2_COMMAND_HEADER  Header;
  TPMI_YES_NO          FullTest;
} TPM2_SELF_TEST_COMMAND;

typedef struct {
  TPM2_RESPONSE_HEADER Header;
} TPM2_SELF_TEST_RESPONSE;

#pragma pack()

/**
  This command causes the TPM to perform a test of its capabilities.
  If the fullTest is YES, the TPM will test all functions.
  If fullTest = NO, the TPM will only test those functions that have not previously been tested.

  @param[in] FullTest    YES if full test to be performed
                         NO if only test of untested functions required

  @retval EFI_SUCCESS      Operation completed successfully.
  @retval EFI_DEVICE_ERROR Unexpected device behavior.
**/
EFI_STATUS
EFIAPI
Tpm2SelfTest (
  IN TPMI_YES_NO          FullTest
  )
{
  EFI_STATUS                        Status;
  TPM2_SELF_TEST_COMMAND            Cmd;
  TPM2_SELF_TEST_RESPONSE           Res;
  UINT32                            ResultBufSize;

  Cmd.Header.tag         = SwapBytes16(TPM_ST_NO_SESSIONS);
  Cmd.Header.paramSize   = SwapBytes32(sizeof(Cmd));
  Cmd.Header.commandCode = SwapBytes32(TPM_CC_SelfTest);
  Cmd.FullTest           = FullTest;

  ResultBufSize = sizeof(Res);
  Status = Tpm2SubmitCommand (sizeof(Cmd), (UINT8 *)&Cmd, &ResultBufSize, (UINT8 *)&Res);

  return Status;
}