SecurityPkg/Library/Tpm: Fix various typos

[mirror_edk2.git] / SecurityPkg / Library / Tpm2CommandLib / Tpm2Miscellaneous.c

/** @file\r
  Implement TPM2 Miscellaneous related command.\r
\r
Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved. <BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <IndustryStandard/UefiTcgPlatform.h>\r
#include <Library/Tpm2CommandLib.h>\r
#include <Library/Tpm2DeviceLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/DebugLib.h>\r
\r
#pragma pack(1)\r
\r
typedef struct {\r
  TPM2_COMMAND_HEADER       Header;\r
  TPMI_RH_HIERARCHY_AUTH    AuthHandle;\r
  UINT32                    AuthSessionSize;\r
  TPMS_AUTH_COMMAND         AuthSession;\r
  UINT32                    AlgorithmSet;\r
} TPM2_SET_ALGORITHM_SET_COMMAND;\r
\r
typedef struct {\r
  TPM2_RESPONSE_HEADER       Header;\r
  UINT32                     AuthSessionSize;\r
  TPMS_AUTH_RESPONSE         AuthSession;\r
} TPM2_SET_ALGORITHM_SET_RESPONSE;\r
\r
#pragma pack()\r
\r
/**\r
  This command allows the platform to change the set of algorithms that are used by the TPM.\r
  The algorithmSet setting is a vendor-dependent value.\r
\r
  @param[in]  AuthHandle              TPM_RH_PLATFORM\r
  @param[in]  AuthSession             Auth Session context\r
  @param[in]  AlgorithmSet            A TPM vendor-dependent value indicating the\r
                                      algorithm set selection\r
\r
  @retval EFI_SUCCESS      Operation completed successfully.\r
  @retval EFI_DEVICE_ERROR Unexpected device behavior.\r
**/\r
EFI_STATUS\r
EFIAPI\r
Tpm2SetAlgorithmSet (\r
  IN  TPMI_RH_PLATFORM          AuthHandle,\r
  IN  TPMS_AUTH_COMMAND         *AuthSession,\r
  IN  UINT32                    AlgorithmSet\r
  )\r
{\r
  EFI_STATUS                                 Status;\r
  TPM2_SET_ALGORITHM_SET_COMMAND             SendBuffer;\r
  TPM2_SET_ALGORITHM_SET_RESPONSE            RecvBuffer;\r
  UINT32                                     SendBufferSize;\r
  UINT32                                     RecvBufferSize;\r
  UINT8                                      *Buffer;\r
  UINT32                                     SessionInfoSize;\r
\r
  //\r
  // Construct command\r
  //\r
  SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r
  SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_SetAlgorithmSet);\r
\r
  SendBuffer.AuthHandle = SwapBytes32 (AuthHandle);\r
\r
  //\r
  // Add in Auth session\r
  //\r
  Buffer = (UINT8 *)&SendBuffer.AuthSession;\r
\r
  // sessionInfoSize\r
  SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r
  Buffer += SessionInfoSize;\r
  SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r
\r
  //\r
  // Real data\r
  //\r
  WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32(AlgorithmSet));\r
  Buffer += sizeof(UINT32);\r
\r
  SendBufferSize = (UINT32)((UINTN)Buffer - (UINTN)&SendBuffer);\r
  SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r
\r
  //\r
  // send Tpm command\r
  //\r
  RecvBufferSize = sizeof (RecvBuffer);\r
  Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r
  if (EFI_ERROR (Status)) {\r
    goto Done;\r
  }\r
\r
  if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r
    DEBUG ((EFI_D_ERROR, "Tpm2SetAlgorithmSet - RecvBufferSize Error - %x\n", RecvBufferSize));\r
    Status = EFI_DEVICE_ERROR;\r
    goto Done;\r
  }\r
  if (SwapBytes32(RecvBuffer.Header.responseCode) != TPM_RC_SUCCESS) {\r
    DEBUG ((EFI_D_ERROR, "Tpm2SetAlgorithmSet - responseCode - %x\n", SwapBytes32(RecvBuffer.Header.responseCode)));\r
    Status = EFI_DEVICE_ERROR;\r
    goto Done;\r
  }\r
\r
Done:\r
  //\r
  // Clear AuthSession Content\r
  //\r
  ZeroMem (&SendBuffer, sizeof(SendBuffer));\r
  ZeroMem (&RecvBuffer, sizeof(RecvBuffer));\r
  return Status;\r
}\r