SecurityPkg/Library/Tpm2CommandLib/Tpm2Test.c

/** @file
  Implement TPM2 Test related command.

Copyright (c) 2013, Intel Corporation. All rights reserved. <BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#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;
}