SecurityPkg: Apply uncrustify changes

[mirror_edk2.git] / SecurityPkg / Library / Tpm12CommandLib / Tpm12Pcr.c

/** @file\r
  Implement TPM1.2 PCR related commands.\r
\r
Copyright (c) 2016, Intel Corporation. All rights reserved. <BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <PiPei.h>\r
#include <Library/Tpm12CommandLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/Tpm12DeviceLib.h>\r
\r
#pragma pack(1)\r
\r
typedef struct {\r
  TPM_RQU_COMMAND_HDR    Hdr;\r
  TPM_PCRINDEX           PcrIndex;\r
  TPM_DIGEST             TpmDigest;\r
} TPM_CMD_EXTEND;\r
\r
typedef struct {\r
  TPM_RSP_COMMAND_HDR    Hdr;\r
  TPM_DIGEST             TpmDigest;\r
} TPM_RSP_EXTEND;\r
\r
#pragma pack()\r
\r
/**\r
Extend a TPM PCR.\r
\r
@param[in]  DigestToExtend    The 160 bit value representing the event to be recorded.\r
@param[in]  PcrIndex          The PCR to be updated.\r
@param[out] NewPcrValue       New PCR value after extend.\r
\r
@retval EFI_SUCCESS           Operation completed successfully.\r
@retval EFI_TIMEOUT           The register can't run into the expected status in time.\r
@retval EFI_BUFFER_TOO_SMALL  Response data buffer is too small.\r
@retval EFI_DEVICE_ERROR      Unexpected device behavior.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Tpm12Extend (\r
  IN  TPM_DIGEST    *DigestToExtend,\r
  IN  TPM_PCRINDEX  PcrIndex,\r
  OUT TPM_DIGEST    *NewPcrValue\r
  )\r
{\r
  EFI_STATUS      Status;\r
  TPM_CMD_EXTEND  Command;\r
  TPM_RSP_EXTEND  Response;\r
  UINT32          Length;\r
\r
  //\r
  // send Tpm command TPM_ORD_Extend\r
  //\r
  Command.Hdr.tag       = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r
  Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));\r
  Command.Hdr.ordinal   = SwapBytes32 (TPM_ORD_Extend);\r
  Command.PcrIndex      = SwapBytes32 (PcrIndex);\r
  CopyMem (&Command.TpmDigest, DigestToExtend, sizeof (Command.TpmDigest));\r
  Length = sizeof (Response);\r
  Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  if (SwapBytes32 (Response.Hdr.returnCode) != TPM_SUCCESS) {\r
    DEBUG ((DEBUG_ERROR, "Tpm12Extend: Response Code error! 0x%08x\r\n", SwapBytes32 (Response.Hdr.returnCode)));\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  if (NewPcrValue != NULL) {\r
    CopyMem (NewPcrValue, &Response.TpmDigest, sizeof (*NewPcrValue));\r
  }\r
\r
  return Status;\r
}\r