/**
Send ForceClear command to TPM1.2.
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_DEVICE_ERROR Unexpected device behavior.
**/
EFI_STATUS
EFIAPI
Tpm12ForceClear (
VOID
)
{
EFI_STATUS Status;
UINT32 TpmRecvSize;
UINT32 TpmSendSize;
TPM_CMD_FORCE_CLEAR SendBuffer;
TPM_RSP_FORCE_CLEAR RecvBuffer;
UINT32 ReturnCode;
//
// send Tpm command TPM_ORD_ForceClear
//
TpmRecvSize = sizeof (TPM_RSP_FORCE_CLEAR);
TpmSendSize = sizeof (TPM_CMD_FORCE_CLEAR);
SendBuffer.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
SendBuffer.Hdr.paramSize = SwapBytes32 (TpmSendSize);
SendBuffer.Hdr.ordinal = SwapBytes32 (TPM_ORD_ForceClear);
Status = Tpm12SubmitCommand (TpmSendSize, (UINT8 *)&SendBuffer, &TpmRecvSize, (UINT8 *)&RecvBuffer);
if (EFI_ERROR (Status)) {
return Status;
}
ReturnCode = SwapBytes32(RecvBuffer.Hdr.returnCode);
switch (ReturnCode) {
case TPM_SUCCESS:
return EFI_SUCCESS;
default:
return EFI_DEVICE_ERROR;
}
}
/**
Read a TPM PCR.
@param[in] PcrIndex The PCR to be read.
@param[out] PcrValue PCR value.
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_TIMEOUT The register can't run into the expected status in time.
@retval EFI_BUFFER_TOO_SMALL Response data buffer is too small.
@retval EFI_DEVICE_ERROR Unexpected device behavior.
**/
EFI_STATUS
EFIAPI
Tpm12PcrRead (
IN TPM_PCRINDEX PcrIndex,
OUT TPM_DIGEST *PcrValue
)
{
EFI_STATUS Status;
TPM_CMD_PCR_READ Command;
TPM_RSP_PCR_READ Response;
UINT32 Length;
//
// send Tpm command TPM_ORD_PcrRead
//
Command.Hdr.tag = SwapBytes16(TPM_TAG_RQU_COMMAND);
Command.Hdr.paramSize = SwapBytes32(sizeof(Command));
Command.Hdr.ordinal = SwapBytes32(TPM_ORD_PcrRead);
Command.PcrIndex = SwapBytes32(PcrIndex);
Length = sizeof(Response);
Status = Tpm12SubmitCommand(sizeof(Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
if (EFI_ERROR(Status)) {
return Status;
}
if (Response.Hdr.returnCode != 0) {
return EFI_DEVICE_ERROR;
}
if (PcrValue != NULL) {
CopyMem(PcrValue, &Response.TpmDigest, sizeof(*PcrValue));
}
return Status;
}
/**
Extend a TPM PCR.
@param[in] DigestToExtend The 160 bit value representing the event to be recorded.
@param[in] PcrIndex The PCR to be updated.
@param[out] NewPcrValue New PCR value after extend.
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_TIMEOUT The register can't run into the expected status in time.
@retval EFI_BUFFER_TOO_SMALL Response data buffer is too small.
@retval EFI_DEVICE_ERROR Unexpected device behavior.
**/
EFI_STATUS
EFIAPI
Tpm12Extend (
IN TPM_DIGEST *DigestToExtend,
IN TPM_PCRINDEX PcrIndex,
OUT TPM_DIGEST *NewPcrValue
)
{
EFI_STATUS Status;
TPM_CMD_EXTEND Command;
TPM_RSP_EXTEND Response;
UINT32 Length;
//
// send Tpm command TPM_ORD_Extend
//
Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));
Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_Extend);
Command.PcrIndex = SwapBytes32 (PcrIndex);
CopyMem (&Command.TpmDigest, DigestToExtend, sizeof (Command.TpmDigest));
Length = sizeof (Response);
Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
if (EFI_ERROR (Status)) {
return Status;
}
if (NewPcrValue != NULL) {
CopyMem (NewPcrValue, &Response.TpmDigest, sizeof (*NewPcrValue));
}
return Status;
}
/**
Send ForceClear command to TPM1.2.
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_DEVICE_ERROR Unexpected device behavior.
**/
EFI_STATUS
EFIAPI
Tpm12ForceClear (
VOID
)
{
EFI_STATUS Status;
TPM_RQU_COMMAND_HDR Command;
TPM_RSP_COMMAND_HDR Response;
UINT32 Length;
//
// send Tpm command TPM_ORD_ForceClear
//
Command.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
Command.paramSize = SwapBytes32 (sizeof (Command));
Command.ordinal = SwapBytes32 (TPM_ORD_ForceClear);
Length = sizeof (Response);
Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
if (EFI_ERROR (Status)) {
return Status;
}
switch (SwapBytes32 (Response.returnCode)) {
case TPM_SUCCESS:
return EFI_SUCCESS;
default:
return EFI_DEVICE_ERROR;
}
}
/**
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;
UINT32 TpmRecvSize;
UINT32 TpmSendSize;
TPM_CMD_NV_DEFINE_SPACE SendBuffer;
TPM_RSP_NV_DEFINE_SPACE RecvBuffer;
UINT32 ReturnCode;
//
// send Tpm command TPM_ORD_NV_DefineSpace
//
TpmRecvSize = sizeof (TPM_RSP_NV_DEFINE_SPACE);
TpmSendSize = sizeof (TPM_CMD_NV_DEFINE_SPACE);
SendBuffer.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
SendBuffer.Hdr.paramSize = SwapBytes32 (sizeof(TPM_CMD_NV_DEFINE_SPACE));
SendBuffer.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_DefineSpace);
SendBuffer.PubInfo.tag = SwapBytes16 (PubInfo->tag);
SendBuffer.PubInfo.nvIndex = SwapBytes32 (PubInfo->nvIndex);
SendBuffer.PubInfo.pcrInfoRead.pcrSelection.sizeOfSelect = SwapBytes16 (PubInfo->pcrInfoRead.pcrSelection.sizeOfSelect);
SendBuffer.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[0] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[0];
SendBuffer.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[1] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[1];
SendBuffer.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[2] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[2];
SendBuffer.PubInfo.pcrInfoRead.localityAtRelease = PubInfo->pcrInfoRead.localityAtRelease;
CopyMem (&SendBuffer.PubInfo.pcrInfoRead.digestAtRelease, &PubInfo->pcrInfoRead.digestAtRelease, sizeof(PubInfo->pcrInfoRead.digestAtRelease));
SendBuffer.PubInfo.pcrInfoWrite.pcrSelection.sizeOfSelect = SwapBytes16 (PubInfo->pcrInfoWrite.pcrSelection.sizeOfSelect);
SendBuffer.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[0] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[0];
SendBuffer.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[1] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[1];
SendBuffer.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[2] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[2];
SendBuffer.PubInfo.pcrInfoWrite.localityAtRelease = PubInfo->pcrInfoWrite.localityAtRelease;
CopyMem (&SendBuffer.PubInfo.pcrInfoWrite.digestAtRelease, &PubInfo->pcrInfoWrite.digestAtRelease, sizeof(PubInfo->pcrInfoWrite.digestAtRelease));
SendBuffer.PubInfo.permission.tag = SwapBytes16 (PubInfo->permission.tag);
SendBuffer.PubInfo.permission.attributes = SwapBytes32 (PubInfo->permission.attributes);
SendBuffer.PubInfo.bReadSTClear = PubInfo->bReadSTClear;
SendBuffer.PubInfo.bWriteSTClear = PubInfo->bWriteSTClear;
SendBuffer.PubInfo.bWriteDefine = PubInfo->bWriteDefine;
SendBuffer.PubInfo.dataSize = SwapBytes32 (PubInfo->dataSize);
CopyMem (&SendBuffer.EncAuth, EncAuth, sizeof(*EncAuth));
Status = Tpm12SubmitCommand (TpmSendSize, (UINT8 *)&SendBuffer, &TpmRecvSize, (UINT8 *)&RecvBuffer);
if (EFI_ERROR (Status)) {
return Status;
}
ReturnCode = SwapBytes32(RecvBuffer.Hdr.returnCode);
DEBUG ((DEBUG_INFO, "Tpm12NvDefineSpace - ReturnCode = %x\n", ReturnCode));
switch (ReturnCode) {
case TPM_SUCCESS:
break;
default:
return EFI_DEVICE_ERROR;
}
return EFI_SUCCESS;
}
/**
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;
UINT32 TpmRecvSize;
UINT32 TpmSendSize;
TPM_CMD_NV_READ_VALUE SendBuffer;
TPM_RSP_NV_READ_VALUE RecvBuffer;
UINT32 ReturnCode;
//
// send Tpm command TPM_ORD_NV_ReadValue
//
TpmRecvSize = sizeof (TPM_RSP_NV_READ_VALUE);
TpmSendSize = sizeof (TPM_CMD_NV_READ_VALUE);
SendBuffer.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
SendBuffer.Hdr.paramSize = SwapBytes32 (sizeof(TPM_CMD_NV_READ_VALUE));
SendBuffer.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_ReadValue);
SendBuffer.NvIndex = SwapBytes32 (NvIndex);
SendBuffer.Offset = SwapBytes32 (Offset);
SendBuffer.DataSize = SwapBytes32 (*DataSize);
Status = Tpm12SubmitCommand (TpmSendSize, (UINT8 *)&SendBuffer, &TpmRecvSize, (UINT8 *)&RecvBuffer);
if (EFI_ERROR (Status)) {
return Status;
}
ReturnCode = SwapBytes32(RecvBuffer.Hdr.returnCode);
DEBUG ((DEBUG_INFO, "Tpm12NvReadValue - ReturnCode = %x\n", ReturnCode));
switch (ReturnCode) {
case TPM_SUCCESS:
break;
default:
return EFI_DEVICE_ERROR;
}
//
// Return the response
//
*DataSize = SwapBytes32(RecvBuffer.DataSize);
CopyMem (Data, &RecvBuffer.Data, *DataSize);
return EFI_SUCCESS;
}
/**
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 TPM_ContinueSelfTest command to TPM.
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_TIMEOUT The register can't run into the expected status in time.
@retval EFI_BUFFER_TOO_SMALL Response data buffer is too small.
@retval EFI_DEVICE_ERROR Unexpected device behavior.
**/
EFI_STATUS
EFIAPI
Tpm12ContinueSelfTest (
VOID
)
{
TPM_RQU_COMMAND_HDR Command;
TPM_RSP_COMMAND_HDR Response;
UINT32 Length;
//
// send Tpm command TPM_ORD_ContinueSelfTest
//
Command.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
Command.paramSize = SwapBytes32 (sizeof (Command));
Command.ordinal = SwapBytes32 (TPM_ORD_ContinueSelfTest);
return Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
}
/**
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;
TPM_RSP_COMMAND_HDR Response;
UINT32 Length;
if (DataSize > sizeof (Command.Data)) {
return EFI_UNSUPPORTED;
}
//
// send Tpm command TPM_ORD_NV_WriteValue
//
Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
Command.Hdr.paramSize = SwapBytes32 (sizeof (Command) - sizeof(Command.Data) + DataSize);
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);
Length = sizeof (Response);
Status = Tpm12SubmitCommand (Command.Hdr.paramSize, (UINT8 *)&Command, &Length, (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;
}
}
/**
Send Startup command to TPM1.2.
@param TpmSt Startup Type.
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_DEVICE_ERROR Unexpected device behavior.
**/
EFI_STATUS
EFIAPI
Tpm12Startup (
IN TPM_STARTUP_TYPE TpmSt
)
{
EFI_STATUS Status;
UINT32 TpmRecvSize;
UINT32 TpmSendSize;
TPM_CMD_START_UP SendBuffer;
TPM_RSP_START_UP RecvBuffer;
UINT32 ReturnCode;
//
// send Tpm command TPM_ORD_Startup
//
TpmRecvSize = sizeof (TPM_RSP_START_UP);
TpmSendSize = sizeof (TPM_CMD_START_UP);
SendBuffer.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
SendBuffer.Hdr.paramSize = SwapBytes32 (TpmSendSize);
SendBuffer.Hdr.ordinal = SwapBytes32 (TPM_ORD_Startup);
SendBuffer.TpmSt = SwapBytes16 (TpmSt);
Status = Tpm12SubmitCommand (TpmSendSize, (UINT8 *)&SendBuffer, &TpmRecvSize, (UINT8 *)&RecvBuffer);
if (EFI_ERROR (Status)) {
return Status;
}
ReturnCode = SwapBytes32(RecvBuffer.Hdr.returnCode);
switch (ReturnCode) {
case TPM_SUCCESS:
case TPM_INVALID_POSTINIT:
// In warm reset, TPM may response TPM_INVALID_POSTINIT
return EFI_SUCCESS;
default:
return EFI_DEVICE_ERROR;
}
}
/**
Get TPM capability permanent flags.
@param[out] TpmPermanentFlags Pointer to the buffer for returned flag structure.
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_TIMEOUT The register can't run into the expected status in time.
@retval EFI_BUFFER_TOO_SMALL Response data buffer is too small.
@retval EFI_DEVICE_ERROR Unexpected device behavior.
**/
EFI_STATUS
EFIAPI
Tpm12GetCapabilityFlagPermanent (
OUT TPM_PERMANENT_FLAGS *TpmPermanentFlags
)
{
EFI_STATUS Status;
TPM_CMD_GET_CAPABILITY Command;
TPM_RSP_GET_CAPABILITY_PERMANENT_FLAGS Response;
UINT32 Length;
//
// send Tpm command TPM_ORD_GetCapability
//
Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));
Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_GetCapability);
Command.Capability = SwapBytes32 (TPM_CAP_FLAG);
Command.CapabilityFlagSize = SwapBytes32 (sizeof (TPM_CAP_FLAG_PERMANENT));
Command.CapabilityFlag = SwapBytes32 (TPM_CAP_FLAG_PERMANENT);
Length = sizeof (Response);
Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
if (EFI_ERROR (Status)) {
return Status;
}
if (SwapBytes32 (Response.Hdr.returnCode) != TPM_SUCCESS) {
DEBUG ((DEBUG_ERROR, "Tpm12GetCapabilityFlagPermanent: Response Code error! 0x%08x\r\n", SwapBytes32 (Response.Hdr.returnCode)));
return EFI_DEVICE_ERROR;
}
ZeroMem (TpmPermanentFlags, sizeof (*TpmPermanentFlags));
CopyMem (TpmPermanentFlags, &Response.Flags, MIN (sizeof (*TpmPermanentFlags), SwapBytes32(Response.ResponseSize)));
return Status;
}
/**
This service is a proxy for commands to the TPM.
@param[in] This Indicates the calling context
@param[in] TpmInputParameterBlockSize Size of the TPM input parameter block
@param[in] TpmInputParameterBlock Pointer to the TPM input parameter block
@param[in] TpmOutputParameterBlockSize Size of the TPM output parameter block
@param[in] TpmOutputParameterBlock Pointer to the TPM output parameter block
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_INVALID_PARAMETER Invalid ordinal.
@retval EFI_UNSUPPORTED Current Task Priority Level >= EFI_TPL_CALLBACK.
@retval EFI_TIMEOUT The TIS timed-out.
**/
EFI_STATUS
EFIAPI
TcgDxePassThroughToTpm (
IN EFI_TCG_PROTOCOL *This,
IN UINT32 TpmInputParameterBlockSize,
IN UINT8 *TpmInputParameterBlock,
IN UINT32 TpmOutputParameterBlockSize,
IN UINT8 *TpmOutputParameterBlock
)
{
if (TpmInputParameterBlock == NULL ||
TpmOutputParameterBlock == NULL ||
TpmInputParameterBlockSize == 0 ||
TpmOutputParameterBlockSize == 0) {
return EFI_INVALID_PARAMETER;
}
return Tpm12SubmitCommand (
TpmInputParameterBlockSize,
TpmInputParameterBlock,
&TpmOutputParameterBlockSize,
TpmOutputParameterBlock
);
}
