8b1331df8b
Fix Tpm12NvWriteValue() command/response length byte order. Tpm12SubmitCommand() was using the value from Command.Hdr.paramSize which was swapped to be Big Endian, but the function was expecting it in UINT32 Little Endian Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Samer El-Haj-Mahmoud <elhaj@hpe.com> Signed-off-by: Derek Lin <derek.lin2@hpe.com> Reviewed-by: Chao Zhang <chao.b.zhang@intel.com> Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>
235 lines
8.3 KiB
C
235 lines
8.3 KiB
C
/** @file
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Implement TPM1.2 NV storage related command.
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Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved. <BR>
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(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiPei.h>
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#include <Library/Tpm12CommandLib.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/Tpm12DeviceLib.h>
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//
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// Max TPM NV value length
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//
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#define TPMNVVALUELENGTH 1024
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#pragma pack(1)
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typedef struct {
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TPM_RQU_COMMAND_HDR Hdr;
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TPM12_NV_DATA_PUBLIC PubInfo;
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TPM_ENCAUTH EncAuth;
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} TPM_CMD_NV_DEFINE_SPACE;
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typedef struct {
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TPM_RQU_COMMAND_HDR Hdr;
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TPM_NV_INDEX NvIndex;
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UINT32 Offset;
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UINT32 DataSize;
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} TPM_CMD_NV_READ_VALUE;
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typedef struct {
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TPM_RSP_COMMAND_HDR Hdr;
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UINT32 DataSize;
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UINT8 Data[TPMNVVALUELENGTH];
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} TPM_RSP_NV_READ_VALUE;
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typedef struct {
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TPM_RQU_COMMAND_HDR Hdr;
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TPM_NV_INDEX NvIndex;
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UINT32 Offset;
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UINT32 DataSize;
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UINT8 Data[TPMNVVALUELENGTH];
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} TPM_CMD_NV_WRITE_VALUE;
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#pragma pack()
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/**
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Send NV DefineSpace command to TPM1.2.
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@param PubInfo The public parameters of the NV area.
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@param EncAuth The encrypted AuthData, only valid if the attributes require subsequent authorization.
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@retval EFI_SUCCESS Operation completed successfully.
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@retval EFI_DEVICE_ERROR Unexpected device behavior.
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**/
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EFI_STATUS
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EFIAPI
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Tpm12NvDefineSpace (
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IN TPM12_NV_DATA_PUBLIC *PubInfo,
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IN TPM_ENCAUTH *EncAuth
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)
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{
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EFI_STATUS Status;
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TPM_CMD_NV_DEFINE_SPACE Command;
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TPM_RSP_COMMAND_HDR Response;
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UINT32 Length;
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//
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// send Tpm command TPM_ORD_NV_DefineSpace
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//
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Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
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Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));
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Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_DefineSpace);
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Command.PubInfo.tag = SwapBytes16 (PubInfo->tag);
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Command.PubInfo.nvIndex = SwapBytes32 (PubInfo->nvIndex);
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Command.PubInfo.pcrInfoRead.pcrSelection.sizeOfSelect = SwapBytes16 (PubInfo->pcrInfoRead.pcrSelection.sizeOfSelect);
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Command.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[0] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[0];
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Command.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[1] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[1];
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Command.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[2] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[2];
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Command.PubInfo.pcrInfoRead.localityAtRelease = PubInfo->pcrInfoRead.localityAtRelease;
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CopyMem (&Command.PubInfo.pcrInfoRead.digestAtRelease, &PubInfo->pcrInfoRead.digestAtRelease, sizeof(PubInfo->pcrInfoRead.digestAtRelease));
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Command.PubInfo.pcrInfoWrite.pcrSelection.sizeOfSelect = SwapBytes16 (PubInfo->pcrInfoWrite.pcrSelection.sizeOfSelect);
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Command.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[0] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[0];
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Command.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[1] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[1];
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Command.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[2] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[2];
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Command.PubInfo.pcrInfoWrite.localityAtRelease = PubInfo->pcrInfoWrite.localityAtRelease;
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CopyMem (&Command.PubInfo.pcrInfoWrite.digestAtRelease, &PubInfo->pcrInfoWrite.digestAtRelease, sizeof(PubInfo->pcrInfoWrite.digestAtRelease));
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Command.PubInfo.permission.tag = SwapBytes16 (PubInfo->permission.tag);
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Command.PubInfo.permission.attributes = SwapBytes32 (PubInfo->permission.attributes);
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Command.PubInfo.bReadSTClear = PubInfo->bReadSTClear;
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Command.PubInfo.bWriteSTClear = PubInfo->bWriteSTClear;
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Command.PubInfo.bWriteDefine = PubInfo->bWriteDefine;
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Command.PubInfo.dataSize = SwapBytes32 (PubInfo->dataSize);
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CopyMem (&Command.EncAuth, EncAuth, sizeof(*EncAuth));
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Length = sizeof (Response);
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Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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DEBUG ((DEBUG_INFO, "Tpm12NvDefineSpace - ReturnCode = %x\n", SwapBytes32 (Response.returnCode)));
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switch (SwapBytes32 (Response.returnCode)) {
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case TPM_SUCCESS:
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return EFI_SUCCESS;
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default:
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return EFI_DEVICE_ERROR;
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}
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}
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/**
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Send NV ReadValue command to TPM1.2.
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@param NvIndex The index of the area to set.
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@param Offset The offset into the area.
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@param DataSize The size of the data area.
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@param Data The data to set the area to.
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@retval EFI_SUCCESS Operation completed successfully.
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@retval EFI_DEVICE_ERROR Unexpected device behavior.
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**/
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EFI_STATUS
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EFIAPI
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Tpm12NvReadValue (
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IN TPM_NV_INDEX NvIndex,
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IN UINT32 Offset,
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IN OUT UINT32 *DataSize,
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OUT UINT8 *Data
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)
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{
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EFI_STATUS Status;
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TPM_CMD_NV_READ_VALUE Command;
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TPM_RSP_NV_READ_VALUE Response;
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UINT32 Length;
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//
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// send Tpm command TPM_ORD_NV_ReadValue
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//
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Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
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Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));
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Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_ReadValue);
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Command.NvIndex = SwapBytes32 (NvIndex);
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Command.Offset = SwapBytes32 (Offset);
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Command.DataSize = SwapBytes32 (*DataSize);
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Length = sizeof (Response);
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Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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DEBUG ((DEBUG_INFO, "Tpm12NvReadValue - ReturnCode = %x\n", SwapBytes32 (Response.Hdr.returnCode)));
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switch (SwapBytes32 (Response.Hdr.returnCode)) {
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case TPM_SUCCESS:
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break;
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default:
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return EFI_DEVICE_ERROR;
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}
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//
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// Return the response
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//
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if (SwapBytes32 (Response.DataSize) > *DataSize) {
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return EFI_BUFFER_TOO_SMALL;
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}
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*DataSize = SwapBytes32 (Response.DataSize);
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ZeroMem (Data, *DataSize);
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CopyMem (Data, &Response.Data, *DataSize);
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return EFI_SUCCESS;
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}
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/**
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Send NV WriteValue command to TPM1.2.
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@param NvIndex The index of the area to set.
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@param Offset The offset into the NV Area.
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@param DataSize The size of the data parameter.
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@param Data The data to set the area to.
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@retval EFI_SUCCESS Operation completed successfully.
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@retval EFI_DEVICE_ERROR Unexpected device behavior.
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**/
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EFI_STATUS
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EFIAPI
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Tpm12NvWriteValue (
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IN TPM_NV_INDEX NvIndex,
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IN UINT32 Offset,
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IN UINT32 DataSize,
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IN UINT8 *Data
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)
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{
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EFI_STATUS Status;
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TPM_CMD_NV_WRITE_VALUE Command;
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UINT32 CommandLength;
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TPM_RSP_COMMAND_HDR Response;
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UINT32 ResponseLength;
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if (DataSize > sizeof (Command.Data)) {
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return EFI_UNSUPPORTED;
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}
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//
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// send Tpm command TPM_ORD_NV_WriteValue
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//
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Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
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CommandLength = sizeof (Command) - sizeof(Command.Data) + DataSize;
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Command.Hdr.paramSize = SwapBytes32 (CommandLength);
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Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_WriteValue);
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Command.NvIndex = SwapBytes32 (NvIndex);
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Command.Offset = SwapBytes32 (Offset);
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Command.DataSize = SwapBytes32 (DataSize);
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CopyMem (Command.Data, Data, DataSize);
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ResponseLength = sizeof (Response);
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Status = Tpm12SubmitCommand (CommandLength, (UINT8 *)&Command, &ResponseLength, (UINT8 *)&Response);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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DEBUG ((DEBUG_INFO, "Tpm12NvWritedValue - ReturnCode = %x\n", SwapBytes32 (Response.returnCode)));
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switch (SwapBytes32 (Response.returnCode)) {
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case TPM_SUCCESS:
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return EFI_SUCCESS;
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default:
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return EFI_DEVICE_ERROR;
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}
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}
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