SecurityPkg/Library/RpmcLibNull/RpmcLibNull.c

   1 /** @file
   2   NULL RpmcLib instance for build purpose.
   3
   4 Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include <Library/DebugLib.h>
  10 #include <Library/RpmcLib.h>
  11
  12 /**
  13   Requests the monotonic counter from the designated RPMC counter.
  14
  15   @param[in]    CounterIndex            The RPMC index
  16   @param[out]   CounterValue            A pointer to a buffer to store the RPMC value.
  17
  18   @retval       EFI_SUCCESS             The operation completed successfully.
  19   @retval       EFI_DEVICE_ERROR        A device error occurred while attempting to update the counter.
  20   @retval       EFI_UNSUPPORTED         The operation is un-supported.
  21 **/
  22 EFI_STATUS
  23 EFIAPI
  24 RequestMonotonicCounter (
  25   IN  UINT8   CounterIndex,
  26   OUT UINT32  *CounterValue
  27   )
  28 {
  29   ASSERT (FALSE);
  30   return EFI_UNSUPPORTED;
  31 }
  32
  33 /**
  34   Increments the monotonic counter in the SPI flash device by 1.
  35
  36   @param[in]    CounterIndex            The RPMC index
  37
  38   @retval       EFI_SUCCESS             The operation completed successfully.
  39   @retval       EFI_DEVICE_ERROR        A device error occurred while attempting to update the counter.
  40   @retval       EFI_UNSUPPORTED         The operation is un-supported.
  41 **/
  42 EFI_STATUS
  43 EFIAPI
  44 IncrementMonotonicCounter (
  45   IN  UINT8   CounterIndex
  46   )
  47 {
  48   ASSERT (FALSE);
  49   return EFI_UNSUPPORTED;
  50 }
  51