MdeModulePkg/Library/TpmMeasurementLibNull/TpmMeasurementLibNull.c

   1 /** @file
   2   This library is used by other modules to measure data to TPM.
   3
   4 Copyright (c) 2015, Intel Corporation. All rights reserved. <BR>
   5 This program and the accompanying materials
   6 are licensed and made available under the terms and conditions of the BSD License
   7 which accompanies this distribution.  The full text of the license may be found at
   8 http://opensource.org/licenses/bsd-license.php
   9
  10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 /**
  16   Tpm measure and log data, and extend the measurement result into a specific PCR.
  17
  18   @param[in]  PcrIndex         PCR Index.
  19   @param[in]  EventType        Event type.
  20   @param[in]  EventLog         Measurement event log.
  21   @param[in]  LogLen           Event log length in bytes.
  22   @param[in]  HashData         The start of the data buffer to be hashed, extended.
  23   @param[in]  HashDataLen      The length, in bytes, of the buffer referenced by HashData
  24
  25   @retval EFI_SUCCESS               Operation completed successfully.
  26   @retval EFI_UNSUPPORTED       TPM device not available.
  27   @retval EFI_OUT_OF_RESOURCES  Out of memory.
  28   @retval EFI_DEVICE_ERROR      The operation was unsuccessful.
  29 **/
  30 EFI_STATUS
  31 EFIAPI
  32 TpmMeasureAndLogData (
  33   IN UINT32             PcrIndex,
  34   IN UINT32             EventType,
  35   IN VOID               *EventLog,
  36   IN UINT32             LogLen,
  37   IN VOID               *HashData,
  38   IN UINT64             HashDataLen
  39   )
  40 {
  41   //
  42   // Do nothing, just return EFI_SUCCESS.
  43   //
  44   return EFI_SUCCESS;
  45 }