mirror of https://github.com/acidanthera/audk.git
128 lines
3.8 KiB
C
128 lines
3.8 KiB
C
/** @file
|
|
Implement TPM2 Startup related command.
|
|
|
|
Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved. <BR>
|
|
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#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;
|
|
TPM_SU StartupType;
|
|
} TPM2_STARTUP_COMMAND;
|
|
|
|
typedef struct {
|
|
TPM2_RESPONSE_HEADER Header;
|
|
} TPM2_STARTUP_RESPONSE;
|
|
|
|
typedef struct {
|
|
TPM2_COMMAND_HEADER Header;
|
|
TPM_SU ShutdownType;
|
|
} TPM2_SHUTDOWN_COMMAND;
|
|
|
|
typedef struct {
|
|
TPM2_RESPONSE_HEADER Header;
|
|
} TPM2_SHUTDOWN_RESPONSE;
|
|
|
|
#pragma pack()
|
|
|
|
/**
|
|
Send Startup command to TPM2.
|
|
|
|
@param[in] StartupType TPM_SU_CLEAR or TPM_SU_STATE
|
|
|
|
@retval EFI_SUCCESS Operation completed successfully.
|
|
@retval EFI_DEVICE_ERROR Unexpected device behavior.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
Tpm2Startup (
|
|
IN TPM_SU StartupType
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
TPM2_STARTUP_COMMAND Cmd;
|
|
TPM2_STARTUP_RESPONSE Res;
|
|
UINT32 ResultBufSize;
|
|
TPM_RC ResponseCode;
|
|
|
|
Cmd.Header.tag = SwapBytes16(TPM_ST_NO_SESSIONS);
|
|
Cmd.Header.paramSize = SwapBytes32(sizeof(Cmd));
|
|
Cmd.Header.commandCode = SwapBytes32(TPM_CC_Startup);
|
|
Cmd.StartupType = SwapBytes16(StartupType);
|
|
|
|
ResultBufSize = sizeof(Res);
|
|
Status = Tpm2SubmitCommand (sizeof(Cmd), (UINT8 *)&Cmd, &ResultBufSize, (UINT8 *)&Res);
|
|
if (EFI_ERROR(Status)) {
|
|
return Status;
|
|
}
|
|
|
|
ResponseCode = SwapBytes32(Res.Header.responseCode);
|
|
switch (ResponseCode) {
|
|
case TPM_RC_SUCCESS:
|
|
DEBUG ((DEBUG_INFO, "TPM2Startup: TPM_RC_SUCCESS\n"));
|
|
return EFI_SUCCESS;
|
|
case TPM_RC_INITIALIZE:
|
|
// TPM_RC_INITIALIZE can be returned if Tpm2Startup is not required.
|
|
DEBUG ((DEBUG_INFO, "TPM2Startup: TPM_RC_INITIALIZE\n"));
|
|
return EFI_SUCCESS;
|
|
default:
|
|
DEBUG ((EFI_D_ERROR, "Tpm2Startup: Response Code error! 0x%08x\r\n", ResponseCode));
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
}
|
|
|
|
/**
|
|
Send Shutdown command to TPM2.
|
|
|
|
@param[in] ShutdownType TPM_SU_CLEAR or TPM_SU_STATE.
|
|
|
|
@retval EFI_SUCCESS Operation completed successfully.
|
|
@retval EFI_DEVICE_ERROR Unexpected device behavior.
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
Tpm2Shutdown (
|
|
IN TPM_SU ShutdownType
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
TPM2_SHUTDOWN_COMMAND Cmd;
|
|
TPM2_SHUTDOWN_RESPONSE Res;
|
|
UINT32 ResultBufSize;
|
|
|
|
Cmd.Header.tag = SwapBytes16(TPM_ST_NO_SESSIONS);
|
|
Cmd.Header.paramSize = SwapBytes32(sizeof(Cmd));
|
|
Cmd.Header.commandCode = SwapBytes32(TPM_CC_Shutdown);
|
|
Cmd.ShutdownType = SwapBytes16(ShutdownType);
|
|
|
|
ResultBufSize = sizeof(Res);
|
|
Status = Tpm2SubmitCommand (sizeof(Cmd), (UINT8 *)&Cmd, &ResultBufSize, (UINT8 *)&Res);
|
|
if (EFI_ERROR(Status)) {
|
|
return Status;
|
|
}
|
|
|
|
if (SwapBytes32(Res.Header.responseCode) != TPM_RC_SUCCESS) {
|
|
DEBUG ((EFI_D_ERROR, "Tpm2Shutdown: Response Code error! 0x%08x\r\n", SwapBytes32(Res.Header.responseCode)));
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|