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/** @file
Implement TPM1.2 NV storage related command.
Copyright (c) 2015 - 2018, 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 <PiPei.h>
#include <Library/Tpm12CommandLib.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/Tpm12DeviceLib.h>
//
// Max TPM NV value length
//
#define TPMNVVALUELENGTH 1024
#pragma pack(1)
typedef struct {
TPM_RQU_COMMAND_HDR Hdr;
TPM12_NV_DATA_PUBLIC PubInfo;
TPM_ENCAUTH EncAuth;
} TPM_CMD_NV_DEFINE_SPACE;
typedef struct {
TPM_RQU_COMMAND_HDR Hdr;
TPM_NV_INDEX NvIndex;
UINT32 Offset;
UINT32 DataSize;
} TPM_CMD_NV_READ_VALUE;
typedef struct {
TPM_RSP_COMMAND_HDR Hdr;
UINT32 DataSize;
UINT8 Data[TPMNVVALUELENGTH];
} TPM_RSP_NV_READ_VALUE;
typedef struct {
TPM_RQU_COMMAND_HDR Hdr;
TPM_NV_INDEX NvIndex;
UINT32 Offset;
UINT32 DataSize;
UINT8 Data[TPMNVVALUELENGTH];
} TPM_CMD_NV_WRITE_VALUE;
#pragma pack()
/**
Send NV DefineSpace command to TPM1.2.
@param PubInfo The public parameters of the NV area.
@param EncAuth The encrypted AuthData, only valid if the attributes require subsequent authorization.
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_DEVICE_ERROR Unexpected device behavior.
**/
EFI_STATUS
EFIAPI
Tpm12NvDefineSpace (
IN TPM12_NV_DATA_PUBLIC *PubInfo,
IN TPM_ENCAUTH *EncAuth
)
{
EFI_STATUS Status;
TPM_CMD_NV_DEFINE_SPACE Command;
TPM_RSP_COMMAND_HDR Response;
UINT32 Length;
//
// send Tpm command TPM_ORD_NV_DefineSpace
//
Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));
Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_DefineSpace);
Command.PubInfo.tag = SwapBytes16 (PubInfo->tag);
Command.PubInfo.nvIndex = SwapBytes32 (PubInfo->nvIndex);
Command.PubInfo.pcrInfoRead.pcrSelection.sizeOfSelect = SwapBytes16 (PubInfo->pcrInfoRead.pcrSelection.sizeOfSelect);
Command.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[0] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[0];
Command.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[1] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[1];
Command.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[2] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[2];
Command.PubInfo.pcrInfoRead.localityAtRelease = PubInfo->pcrInfoRead.localityAtRelease;
CopyMem (&Command.PubInfo.pcrInfoRead.digestAtRelease, &PubInfo->pcrInfoRead.digestAtRelease, sizeof(PubInfo->pcrInfoRead.digestAtRelease));
Command.PubInfo.pcrInfoWrite.pcrSelection.sizeOfSelect = SwapBytes16 (PubInfo->pcrInfoWrite.pcrSelection.sizeOfSelect);
Command.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[0] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[0];
Command.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[1] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[1];
Command.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[2] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[2];
Command.PubInfo.pcrInfoWrite.localityAtRelease = PubInfo->pcrInfoWrite.localityAtRelease;
CopyMem (&Command.PubInfo.pcrInfoWrite.digestAtRelease, &PubInfo->pcrInfoWrite.digestAtRelease, sizeof(PubInfo->pcrInfoWrite.digestAtRelease));
Command.PubInfo.permission.tag = SwapBytes16 (PubInfo->permission.tag);
Command.PubInfo.permission.attributes = SwapBytes32 (PubInfo->permission.attributes);
Command.PubInfo.bReadSTClear = PubInfo->bReadSTClear;
Command.PubInfo.bWriteSTClear = PubInfo->bWriteSTClear;
Command.PubInfo.bWriteDefine = PubInfo->bWriteDefine;
Command.PubInfo.dataSize = SwapBytes32 (PubInfo->dataSize);
CopyMem (&Command.EncAuth, EncAuth, sizeof(*EncAuth));
Length = sizeof (Response);
Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
if (EFI_ERROR (Status)) {
return Status;
}
DEBUG ((DEBUG_INFO, "Tpm12NvDefineSpace - ReturnCode = %x\n", SwapBytes32 (Response.returnCode)));
switch (SwapBytes32 (Response.returnCode)) {
case TPM_SUCCESS:
return EFI_SUCCESS;
default:
return EFI_DEVICE_ERROR;
}
}
/**
Send NV ReadValue command to TPM1.2.
@param NvIndex The index of the area to set.
@param Offset The offset into the area.
@param DataSize The size of the data area.
@param Data The data to set the area to.
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_DEVICE_ERROR Unexpected device behavior.
**/
EFI_STATUS
EFIAPI
Tpm12NvReadValue (
IN TPM_NV_INDEX NvIndex,
IN UINT32 Offset,
IN OUT UINT32 *DataSize,
OUT UINT8 *Data
)
{
EFI_STATUS Status;
TPM_CMD_NV_READ_VALUE Command;
TPM_RSP_NV_READ_VALUE Response;
UINT32 Length;
//
// send Tpm command TPM_ORD_NV_ReadValue
//
Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));
Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_ReadValue);
Command.NvIndex = SwapBytes32 (NvIndex);
Command.Offset = SwapBytes32 (Offset);
Command.DataSize = SwapBytes32 (*DataSize);
Length = sizeof (Response);
Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
if (EFI_ERROR (Status)) {
return Status;
}
DEBUG ((DEBUG_INFO, "Tpm12NvReadValue - ReturnCode = %x\n", SwapBytes32 (Response.Hdr.returnCode)));
switch (SwapBytes32 (Response.Hdr.returnCode)) {
case TPM_SUCCESS:
break;
default:
return EFI_DEVICE_ERROR;
}
//
// Return the response
//
if (SwapBytes32 (Response.DataSize) > *DataSize) {
return EFI_BUFFER_TOO_SMALL;
}
*DataSize = SwapBytes32 (Response.DataSize);
ZeroMem (Data, *DataSize);
CopyMem (Data, &Response.Data, *DataSize);
return EFI_SUCCESS;
}
/**
Send NV WriteValue command to TPM1.2.
@param NvIndex The index of the area to set.
@param Offset The offset into the NV Area.
@param DataSize The size of the data parameter.
@param Data The data to set the area to.
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_DEVICE_ERROR Unexpected device behavior.
**/
EFI_STATUS
EFIAPI
Tpm12NvWriteValue (
IN TPM_NV_INDEX NvIndex,
IN UINT32 Offset,
IN UINT32 DataSize,
IN UINT8 *Data
)
{
EFI_STATUS Status;
TPM_CMD_NV_WRITE_VALUE Command;
UINT32 CommandLength;
TPM_RSP_COMMAND_HDR Response;
UINT32 ResponseLength;
if (DataSize > sizeof (Command.Data)) {
return EFI_UNSUPPORTED;
}
//
// send Tpm command TPM_ORD_NV_WriteValue
//
Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
CommandLength = sizeof (Command) - sizeof(Command.Data) + DataSize;
Command.Hdr.paramSize = SwapBytes32 (CommandLength);
Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_WriteValue);
Command.NvIndex = SwapBytes32 (NvIndex);
Command.Offset = SwapBytes32 (Offset);
Command.DataSize = SwapBytes32 (DataSize);
CopyMem (Command.Data, Data, DataSize);
ResponseLength = sizeof (Response);
Status = Tpm12SubmitCommand (CommandLength, (UINT8 *)&Command, &ResponseLength, (UINT8 *)&Response);
if (EFI_ERROR (Status)) {
return Status;
}
DEBUG ((DEBUG_INFO, "Tpm12NvWritedValue - ReturnCode = %x\n", SwapBytes32 (Response.returnCode)));
switch (SwapBytes32 (Response.returnCode)) {
case TPM_SUCCESS:
return EFI_SUCCESS;
default:
return EFI_DEVICE_ERROR;
}
}
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