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audk/SecurityPkg/Tcg/Tcg2Config/Tcg2ConfigImpl.c

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/** @file
HII Config Access protocol implementation of TCG2 configuration module.
NOTE: This module is only for reference only, each platform should have its own setup page.
Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2018 Hewlett Packard Enterprise Development LP<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "Tcg2ConfigImpl.h"
#include <Library/PcdLib.h>
#include <Library/Tpm2CommandLib.h>
#include <Library/Tpm2DeviceLib.h>
#include <Library/IoLib.h>
#include <Guid/TpmInstance.h>
#include <IndustryStandard/TpmPtp.h>
#define EFI_TCG2_EVENT_LOG_FORMAT_ALL (EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2 | EFI_TCG2_EVENT_LOG_FORMAT_TCG_2)
TPM_INSTANCE_ID mTpmInstanceId[TPM_DEVICE_MAX + 1] = TPM_INSTANCE_ID_LIST;
TCG2_CONFIG_PRIVATE_DATA *mTcg2ConfigPrivateDate;
TCG2_CONFIG_PRIVATE_DATA mTcg2ConfigPrivateDateTemplate = {
TCG2_CONFIG_PRIVATE_DATA_SIGNATURE,
{
Tcg2ExtractConfig,
Tcg2RouteConfig,
Tcg2Callback
}
};
HII_VENDOR_DEVICE_PATH mTcg2HiiVendorDevicePath = {
{
{
HARDWARE_DEVICE_PATH,
HW_VENDOR_DP,
{
(UINT8)(sizeof (VENDOR_DEVICE_PATH)),
(UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)
}
},
TCG2_CONFIG_FORM_SET_GUID
},
{
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
{
(UINT8)(END_DEVICE_PATH_LENGTH),
(UINT8)((END_DEVICE_PATH_LENGTH) >> 8)
}
}
};
UINT8 mCurrentPpRequest;
/**
Return if PTP CRB is supported.
@param[in] Register Pointer to PTP register.
@retval TRUE PTP CRB is supported.
@retval FALSE PTP CRB is unsupported.
**/
BOOLEAN
IsPtpCrbSupported (
IN VOID *Register
)
{
PTP_CRB_INTERFACE_IDENTIFIER InterfaceId;
//
// Check interface id
//
InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);
if (((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_CRB) ||
(InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_FIFO)) &&
(InterfaceId.Bits.CapCRB != 0))
{
return TRUE;
}
return FALSE;
}
/**
Return if PTP FIFO is supported.
@param[in] Register Pointer to PTP register.
@retval TRUE PTP FIFO is supported.
@retval FALSE PTP FIFO is unsupported.
**/
BOOLEAN
IsPtpFifoSupported (
IN VOID *Register
)
{
PTP_CRB_INTERFACE_IDENTIFIER InterfaceId;
//
// Check interface id
//
InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);
if (((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_CRB) ||
(InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_FIFO)) &&
(InterfaceId.Bits.CapFIFO != 0))
{
return TRUE;
}
return FALSE;
}
/**
Set PTP interface type.
Do not update PcdActiveTpmInterfaceType here because interface change only happens on next _TPM_INIT
@param[in] Register Pointer to PTP register.
@param[in] PtpInterface PTP interface type.
@retval EFI_SUCCESS PTP interface type is set.
@retval EFI_INVALID_PARAMETER PTP interface type is invalid.
@retval EFI_UNSUPPORTED PTP interface type is unsupported.
@retval EFI_WRITE_PROTECTED PTP interface is locked.
**/
EFI_STATUS
SetPtpInterface (
IN VOID *Register,
IN UINT8 PtpInterface
)
{
TPM2_PTP_INTERFACE_TYPE PtpInterfaceCurrent;
PTP_CRB_INTERFACE_IDENTIFIER InterfaceId;
PtpInterfaceCurrent = PcdGet8 (PcdActiveTpmInterfaceType);
if ((PtpInterfaceCurrent != Tpm2PtpInterfaceFifo) &&
(PtpInterfaceCurrent != Tpm2PtpInterfaceCrb))
{
return EFI_UNSUPPORTED;
}
InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);
if (InterfaceId.Bits.IntfSelLock != 0) {
return EFI_WRITE_PROTECTED;
}
switch (PtpInterface) {
case Tpm2PtpInterfaceFifo:
if (InterfaceId.Bits.CapFIFO == 0) {
return EFI_UNSUPPORTED;
}
InterfaceId.Bits.InterfaceSelector = PTP_INTERFACE_IDENTIFIER_INTERFACE_SELECTOR_FIFO;
MmioWrite32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId, InterfaceId.Uint32);
return EFI_SUCCESS;
case Tpm2PtpInterfaceCrb:
if (InterfaceId.Bits.CapCRB == 0) {
return EFI_UNSUPPORTED;
}
InterfaceId.Bits.InterfaceSelector = PTP_INTERFACE_IDENTIFIER_INTERFACE_SELECTOR_CRB;
MmioWrite32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId, InterfaceId.Uint32);
return EFI_SUCCESS;
default:
return EFI_INVALID_PARAMETER;
}
}
/**
This function allows a caller to extract the current configuration for one
or more named elements from the target driver.
@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
@param[in] Request A null-terminated Unicode string in
<ConfigRequest> format.
@param[out] Progress On return, points to a character in the Request
string. Points to the string's null terminator if
request was successful. Points to the most recent
'&' before the first failing name/value pair (or
the beginning of the string if the failure is in
the first name/value pair) if the request was not
successful.
@param[out] Results A null-terminated Unicode string in
<ConfigAltResp> format which has all values filled
in for the names in the Request string. String to
be allocated by the called function.
@retval EFI_SUCCESS The Results is filled with the requested values.
@retval EFI_OUT_OF_RESOURCES Not enough memory to store the results.
@retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name.
@retval EFI_NOT_FOUND Routing data doesn't match any storage in this
driver.
**/
EFI_STATUS
EFIAPI
Tcg2ExtractConfig (
IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
IN CONST EFI_STRING Request,
OUT EFI_STRING *Progress,
OUT EFI_STRING *Results
)
{
if ((Progress == NULL) || (Results == NULL)) {
return EFI_INVALID_PARAMETER;
}
*Progress = Request;
return EFI_NOT_FOUND;
}
/**
Save TPM request to variable space.
@param[in] PpRequest Physical Presence request command.
@retval EFI_SUCCESS The operation is finished successfully.
@retval Others Other errors as indicated.
**/
EFI_STATUS
SaveTcg2PpRequest (
IN UINT8 PpRequest
)
{
UINT32 ReturnCode;
EFI_STATUS Status;
ReturnCode = Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (PpRequest, 0);
if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS) {
mCurrentPpRequest = PpRequest;
Status = EFI_SUCCESS;
} else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE) {
Status = EFI_OUT_OF_RESOURCES;
} else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED) {
Status = EFI_UNSUPPORTED;
} else {
Status = EFI_DEVICE_ERROR;
}
return Status;
}
/**
Save TPM request to variable space.
@param[in] PpRequestParameter Physical Presence request parameter.
@retval EFI_SUCCESS The operation is finished successfully.
@retval Others Other errors as indicated.
**/
EFI_STATUS
SaveTcg2PpRequestParameter (
IN UINT32 PpRequestParameter
)
{
UINT32 ReturnCode;
EFI_STATUS Status;
ReturnCode = Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (mCurrentPpRequest, PpRequestParameter);
if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS) {
Status = EFI_SUCCESS;
} else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE) {
Status = EFI_OUT_OF_RESOURCES;
} else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED) {
Status = EFI_UNSUPPORTED;
} else {
Status = EFI_DEVICE_ERROR;
}
return Status;
}
/**
Save Tcg2 PCR Banks request request to variable space.
@param[in] PCRBankIndex PCR Bank Index.
@param[in] Enable Enable or disable this PCR Bank.
@retval EFI_SUCCESS The operation is finished successfully.
@retval Others Other errors as indicated.
**/
EFI_STATUS
SaveTcg2PCRBanksRequest (
IN UINTN PCRBankIndex,
IN BOOLEAN Enable
)
{
UINT32 ReturnCode;
EFI_STATUS Status;
if (Enable) {
mTcg2ConfigPrivateDate->PCRBanksDesired |= (0x1 << PCRBankIndex);
} else {
mTcg2ConfigPrivateDate->PCRBanksDesired &= ~(0x1 << PCRBankIndex);
}
ReturnCode = Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (TCG2_PHYSICAL_PRESENCE_SET_PCR_BANKS, mTcg2ConfigPrivateDate->PCRBanksDesired);
if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS) {
Status = EFI_SUCCESS;
} else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE) {
Status = EFI_OUT_OF_RESOURCES;
} else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED) {
Status = EFI_UNSUPPORTED;
} else {
Status = EFI_DEVICE_ERROR;
}
return Status;
}
/**
This function processes the results of changes in configuration.
@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
@param[in] Configuration A null-terminated Unicode string in <ConfigResp>
format.
@param[out] Progress A pointer to a string filled in with the offset of
the most recent '&' before the first failing
name/value pair (or the beginning of the string if
the failure is in the first name/value pair) or
the terminating NULL if all was successful.
@retval EFI_SUCCESS The Results is processed successfully.
@retval EFI_INVALID_PARAMETER Configuration is NULL.
@retval EFI_NOT_FOUND Routing data doesn't match any storage in this
driver.
**/
EFI_STATUS
EFIAPI
Tcg2RouteConfig (
IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
IN CONST EFI_STRING Configuration,
OUT EFI_STRING *Progress
)
{
if ((Configuration == NULL) || (Progress == NULL)) {
return EFI_INVALID_PARAMETER;
}
*Progress = Configuration;
return EFI_NOT_FOUND;
}
/**
Get HID string of TPM2 ACPI device object
@param[in] Hid Points to HID String Buffer.
@param[in] Size HID String size in bytes. Must >= TPM_HID_ACPI_SIZE
@return HID String get status.
**/
EFI_STATUS
GetTpm2HID (
CHAR8 *Hid,
UINTN Size
)
{
EFI_STATUS Status;
UINT32 ManufacturerID;
UINT32 FirmwareVersion1;
UINT32 FirmwareVersion2;
BOOLEAN PnpHID;
PnpHID = TRUE;
ZeroMem (Hid, Size);
//
// Get Manufacturer ID
//
Status = Tpm2GetCapabilityManufactureID (&ManufacturerID);
if (!EFI_ERROR (Status)) {
DEBUG ((DEBUG_INFO, "TPM_PT_MANUFACTURER 0x%08x\n", ManufacturerID));
//
// ManufacturerID defined in TCG Vendor ID Registry
// may tailed with 0x00 or 0x20
//
if (((ManufacturerID >> 24) == 0x00) || ((ManufacturerID >> 24) == 0x20)) {
//
// HID containing PNP ID "NNN####"
// NNN is uppercase letter for Vendor ID specified by manufacturer
//
CopyMem (Hid, &ManufacturerID, 3);
} else {
//
// HID containing ACP ID "NNNN####"
// NNNN is uppercase letter for Vendor ID specified by manufacturer
//
CopyMem (Hid, &ManufacturerID, 4);
PnpHID = FALSE;
}
} else {
DEBUG ((DEBUG_ERROR, "Get TPM_PT_MANUFACTURER failed %x!\n", Status));
ASSERT (FALSE);
return Status;
}
Status = Tpm2GetCapabilityFirmwareVersion (&FirmwareVersion1, &FirmwareVersion2);
if (!EFI_ERROR (Status)) {
DEBUG ((DEBUG_INFO, "TPM_PT_FIRMWARE_VERSION_1 0x%x\n", FirmwareVersion1));
DEBUG ((DEBUG_INFO, "TPM_PT_FIRMWARE_VERSION_2 0x%x\n", FirmwareVersion2));
//
// #### is Firmware Version 1
//
if (PnpHID) {
AsciiSPrint (Hid + 3, TPM_HID_PNP_SIZE - 3, "%02d%02d", ((FirmwareVersion1 & 0xFFFF0000) >> 16), (FirmwareVersion1 & 0x0000FFFF));
} else {
AsciiSPrint (Hid + 4, TPM_HID_ACPI_SIZE - 4, "%02d%02d", ((FirmwareVersion1 & 0xFFFF0000) >> 16), (FirmwareVersion1 & 0x0000FFFF));
}
} else {
DEBUG ((DEBUG_ERROR, "Get TPM_PT_FIRMWARE_VERSION_X failed %x!\n", Status));
ASSERT (FALSE);
return Status;
}
return EFI_SUCCESS;
}
/**
This function processes the results of changes in configuration
for TCG2 version information.
@param[in] Action Specifies the type of action taken by the browser.
ASSERT if the Action is not EFI_BROWSER_ACTION_SUBMITTED.
@param[in] QuestionId A unique value which is sent to the original
exporting driver so that it can identify the type
of data to expect.
@param[in] Type The type of value for the question.
@param[in] Value A pointer to the data being sent to the original
exporting driver.
@retval EFI_SUCCESS The callback successfully handled the action.
**/
EFI_STATUS
Tcg2VersionInfoCallback (
IN EFI_BROWSER_ACTION Action,
IN EFI_QUESTION_ID QuestionId,
IN UINT8 Type,
IN EFI_IFR_TYPE_VALUE *Value
)
{
EFI_INPUT_KEY Key;
UINT64 PcdTcg2PpiVersion;
UINT8 PcdTpm2AcpiTableRev;
ASSERT (Action == EFI_BROWSER_ACTION_SUBMITTED);
if (QuestionId == KEY_TCG2_PPI_VERSION) {
//
// Get the PCD value after EFI_BROWSER_ACTION_SUBMITTED,
// the SetVariable to TCG2_VERSION_NAME should have been done.
// If the PCD value is not equal to the value set to variable,
// the PCD is not DynamicHii type and does not map to the setup option.
//
PcdTcg2PpiVersion = 0;
CopyMem (
&PcdTcg2PpiVersion,
PcdGetPtr (PcdTcgPhysicalPresenceInterfaceVer),
AsciiStrSize ((CHAR8 *)PcdGetPtr (PcdTcgPhysicalPresenceInterfaceVer))
);
if (PcdTcg2PpiVersion != Value->u64) {
CreatePopUp (
EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
&Key,
L"WARNING: PcdTcgPhysicalPresenceInterfaceVer is not DynamicHii type and does not map to this option!",
L"The version configuring by this setup option will not work!",
NULL
);
}
} else if (QuestionId == KEY_TPM2_ACPI_REVISION) {
//
// Get the PCD value after EFI_BROWSER_ACTION_SUBMITTED,
// the SetVariable to TCG2_VERSION_NAME should have been done.
// If the PCD value is not equal to the value set to variable,
// the PCD is not DynamicHii type and does not map to the setup option.
//
PcdTpm2AcpiTableRev = PcdGet8 (PcdTpm2AcpiTableRev);
if (PcdTpm2AcpiTableRev != Value->u8) {
CreatePopUp (
EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
&Key,
L"WARNING: PcdTpm2AcpiTableRev is not DynamicHii type and does not map to this option!",
L"The Revision configuring by this setup option will not work!",
NULL
);
}
}
return EFI_SUCCESS;
}
/**
This function processes the results of changes in configuration.
@param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
@param[in] Action Specifies the type of action taken by the browser.
@param[in] QuestionId A unique value which is sent to the original
exporting driver so that it can identify the type
of data to expect.
@param[in] Type The type of value for the question.
@param[in] Value A pointer to the data being sent to the original
exporting driver.
@param[out] ActionRequest On return, points to the action requested by the
callback function.
@retval EFI_SUCCESS The callback successfully handled the action.
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the
variable and its data.
@retval EFI_DEVICE_ERROR The variable could not be saved.
@retval EFI_UNSUPPORTED The specified Action is not supported by the
callback.
**/
EFI_STATUS
EFIAPI
Tcg2Callback (
IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
IN EFI_BROWSER_ACTION Action,
IN EFI_QUESTION_ID QuestionId,
IN UINT8 Type,
IN EFI_IFR_TYPE_VALUE *Value,
OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest
)
{
EFI_STATUS Status;
EFI_INPUT_KEY Key;
CHAR8 HidStr[16];
CHAR16 UnHidStr[16];
TCG2_CONFIG_PRIVATE_DATA *Private;
if ((This == NULL) || (Value == NULL) || (ActionRequest == NULL)) {
return EFI_INVALID_PARAMETER;
}
Private = TCG2_CONFIG_PRIVATE_DATA_FROM_THIS (This);
if (Action == EFI_BROWSER_ACTION_FORM_OPEN) {
//
// Update TPM2 HID info
//
if (QuestionId == KEY_TPM_DEVICE) {
Status = GetTpm2HID (HidStr, 16);
if (EFI_ERROR (Status)) {
//
// Fail to get TPM2 HID
//
HiiSetString (Private->HiiHandle, STRING_TOKEN (STR_TPM2_ACPI_HID_CONTENT), L"Unknown", NULL);
} else {
AsciiStrToUnicodeStrS (HidStr, UnHidStr, 16);
HiiSetString (Private->HiiHandle, STRING_TOKEN (STR_TPM2_ACPI_HID_CONTENT), UnHidStr, NULL);
}
}
return EFI_SUCCESS;
}
if (Action == EFI_BROWSER_ACTION_CHANGING) {
if (QuestionId == KEY_TPM_DEVICE_INTERFACE) {
Status = SetPtpInterface ((VOID *)(UINTN)PcdGet64 (PcdTpmBaseAddress), Value->u8);
if (EFI_ERROR (Status)) {
CreatePopUp (
EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
&Key,
L"Error: Fail to set PTP interface!",
NULL
);
return EFI_DEVICE_ERROR;
}
}
}
if (Action == EFI_BROWSER_ACTION_CHANGED) {
if (QuestionId == KEY_TPM_DEVICE) {
return EFI_SUCCESS;
}
if (QuestionId == KEY_TPM2_OPERATION) {
return SaveTcg2PpRequest (Value->u8);
}
if (QuestionId == KEY_TPM2_OPERATION_PARAMETER) {
return SaveTcg2PpRequestParameter (Value->u32);
}
if ((QuestionId >= KEY_TPM2_PCR_BANKS_REQUEST_0) && (QuestionId <= KEY_TPM2_PCR_BANKS_REQUEST_4)) {
return SaveTcg2PCRBanksRequest (QuestionId - KEY_TPM2_PCR_BANKS_REQUEST_0, Value->b);
}
}
if (Action == EFI_BROWSER_ACTION_SUBMITTED) {
if ((QuestionId == KEY_TCG2_PPI_VERSION) || (QuestionId == KEY_TPM2_ACPI_REVISION)) {
return Tcg2VersionInfoCallback (Action, QuestionId, Type, Value);
}
}
return EFI_UNSUPPORTED;
}
/**
Append Buffer With TpmAlgHash.
@param[in] Buffer Buffer to be appended.
@param[in] BufferSize Size of buffer.
@param[in] TpmAlgHash TpmAlgHash.
**/
VOID
AppendBufferWithTpmAlgHash (
IN UINT16 *Buffer,
IN UINTN BufferSize,
IN UINT32 TpmAlgHash
)
{
switch (TpmAlgHash) {
case TPM_ALG_SHA1:
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA1");
break;
case TPM_ALG_SHA256:
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA256");
break;
case TPM_ALG_SHA384:
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA384");
break;
case TPM_ALG_SHA512:
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA512");
break;
case TPM_ALG_SM3_256:
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SM3_256");
break;
}
}
/**
Fill Buffer With BootHashAlg.
@param[in] Buffer Buffer to be filled.
@param[in] BufferSize Size of buffer.
@param[in] BootHashAlg BootHashAlg.
**/
VOID
FillBufferWithBootHashAlg (
IN UINT16 *Buffer,
IN UINTN BufferSize,
IN UINT32 BootHashAlg
)
{
Buffer[0] = 0;
if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA1) != 0) {
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA1");
}
if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA256) != 0) {
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA256");
}
if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA384) != 0) {
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA384");
}
if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA512) != 0) {
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA512");
}
if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SM3_256) != 0) {
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SM3_256");
}
}
/**
Set ConfigInfo according to TpmAlgHash.
@param[in,out] Tcg2ConfigInfo TCG2 config info.
@param[in] TpmAlgHash TpmAlgHash.
**/
VOID
SetConfigInfo (
IN OUT TCG2_CONFIGURATION_INFO *Tcg2ConfigInfo,
IN UINT32 TpmAlgHash
)
{
switch (TpmAlgHash) {
case TPM_ALG_SHA1:
Tcg2ConfigInfo->Sha1Supported = TRUE;
break;
case TPM_ALG_SHA256:
Tcg2ConfigInfo->Sha256Supported = TRUE;
break;
case TPM_ALG_SHA384:
Tcg2ConfigInfo->Sha384Supported = TRUE;
break;
case TPM_ALG_SHA512:
Tcg2ConfigInfo->Sha512Supported = TRUE;
break;
case TPM_ALG_SM3_256:
Tcg2ConfigInfo->Sm3Supported = TRUE;
break;
}
}
/**
Fill Buffer With TCG2EventLogFormat.
@param[in] Buffer Buffer to be filled.
@param[in] BufferSize Size of buffer.
@param[in] TCG2EventLogFormat TCG2EventLogFormat.
**/
VOID
FillBufferWithTCG2EventLogFormat (
IN UINT16 *Buffer,
IN UINTN BufferSize,
IN UINT32 TCG2EventLogFormat
)
{
Buffer[0] = 0;
if ((TCG2EventLogFormat & EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2) != 0) {
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"TCG_1_2");
}
if ((TCG2EventLogFormat & EFI_TCG2_EVENT_LOG_FORMAT_TCG_2) != 0) {
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"TCG_2");
}
if ((TCG2EventLogFormat & (~EFI_TCG2_EVENT_LOG_FORMAT_ALL)) != 0) {
if (Buffer[0] != 0) {
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");
}
StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"UNKNOWN");
}
}
/**
This function publish the TCG2 configuration Form for TPM device.
@param[in, out] PrivateData Points to TCG2 configuration private data.
@retval EFI_SUCCESS HII Form is installed for this network device.
@retval EFI_OUT_OF_RESOURCES Not enough resource for HII Form installation.
@retval Others Other errors as indicated.
**/
EFI_STATUS
InstallTcg2ConfigForm (
IN OUT TCG2_CONFIG_PRIVATE_DATA *PrivateData
)
{
EFI_STATUS Status;
EFI_HII_HANDLE HiiHandle;
EFI_HANDLE DriverHandle;
EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;
UINTN Index;
TPML_PCR_SELECTION Pcrs;
CHAR16 TempBuffer[1024];
TCG2_CONFIGURATION_INFO Tcg2ConfigInfo;
TPM2_PTP_INTERFACE_TYPE TpmDeviceInterfaceDetected;
BOOLEAN IsCmdImp = FALSE;
DriverHandle = NULL;
ConfigAccess = &PrivateData->ConfigAccess;
Status = gBS->InstallMultipleProtocolInterfaces (
&DriverHandle,
&gEfiDevicePathProtocolGuid,
&mTcg2HiiVendorDevicePath,
&gEfiHiiConfigAccessProtocolGuid,
ConfigAccess,
NULL
);
if (EFI_ERROR (Status)) {
return Status;
}
PrivateData->DriverHandle = DriverHandle;
//
// Publish the HII package list
//
HiiHandle = HiiAddPackages (
&gTcg2ConfigFormSetGuid,
DriverHandle,
Tcg2ConfigDxeStrings,
Tcg2ConfigBin,
NULL
);
if (HiiHandle == NULL) {
gBS->UninstallMultipleProtocolInterfaces (
DriverHandle,
&gEfiDevicePathProtocolGuid,
&mTcg2HiiVendorDevicePath,
&gEfiHiiConfigAccessProtocolGuid,
ConfigAccess,
NULL
);
return EFI_OUT_OF_RESOURCES;
}
PrivateData->HiiHandle = HiiHandle;
//
// Update static data
//
switch (PrivateData->TpmDeviceDetected) {
case TPM_DEVICE_NULL:
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"Not Found", NULL);
break;
case TPM_DEVICE_1_2:
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"TPM 1.2", NULL);
break;
case TPM_DEVICE_2_0_DTPM:
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"TPM 2.0", NULL);
break;
default:
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"Unknown", NULL);
break;
}
ZeroMem (&Tcg2ConfigInfo, sizeof (Tcg2ConfigInfo));
Status = Tpm2GetCapabilityPcrs (&Pcrs);
if (EFI_ERROR (Status)) {
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_ACTIVE_HASH_ALGO_CONTENT), L"[Unknown]", NULL);
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_SUPPORTED_HASH_ALGO_CONTENT), L"[Unknown]", NULL);
} else {
TempBuffer[0] = 0;
for (Index = 0; Index < Pcrs.count; Index++) {
if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {
AppendBufferWithTpmAlgHash (TempBuffer, sizeof (TempBuffer), Pcrs.pcrSelections[Index].hash);
}
}
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_ACTIVE_HASH_ALGO_CONTENT), TempBuffer, NULL);
TempBuffer[0] = 0;
for (Index = 0; Index < Pcrs.count; Index++) {
AppendBufferWithTpmAlgHash (TempBuffer, sizeof (TempBuffer), Pcrs.pcrSelections[Index].hash);
SetConfigInfo (&Tcg2ConfigInfo, Pcrs.pcrSelections[Index].hash);
}
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_SUPPORTED_HASH_ALGO_CONTENT), TempBuffer, NULL);
}
Status = Tpm2GetCapabilityIsCommandImplemented (TPM_CC_ChangeEPS, &IsCmdImp);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Tpm2GetCapabilityIsCmdImpl fails %r\n", Status));
}
Tcg2ConfigInfo.ChangeEPSSupported = IsCmdImp;
FillBufferWithBootHashAlg (TempBuffer, sizeof (TempBuffer), PcdGet32 (PcdTcg2HashAlgorithmBitmap));
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_BIOS_HASH_ALGO_CONTENT), TempBuffer, NULL);
//
// Tcg2 Capability
//
FillBufferWithTCG2EventLogFormat (TempBuffer, sizeof (TempBuffer), PrivateData->ProtocolCapability.SupportedEventLogs);
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_SUPPORTED_EVENT_LOG_FORMAT_CONTENT), TempBuffer, NULL);
FillBufferWithBootHashAlg (TempBuffer, sizeof (TempBuffer), PrivateData->ProtocolCapability.HashAlgorithmBitmap);
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_HASH_ALGO_BITMAP_CONTENT), TempBuffer, NULL);
UnicodeSPrint (TempBuffer, sizeof (TempBuffer), L"%d", PrivateData->ProtocolCapability.NumberOfPCRBanks);
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_NUMBER_OF_PCR_BANKS_CONTENT), TempBuffer, NULL);
FillBufferWithBootHashAlg (TempBuffer, sizeof (TempBuffer), PrivateData->ProtocolCapability.ActivePcrBanks);
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_ACTIVE_PCR_BANKS_CONTENT), TempBuffer, NULL);
//
// Update TPM device interface type
//
if (PrivateData->TpmDeviceDetected == TPM_DEVICE_2_0_DTPM) {
TpmDeviceInterfaceDetected = PcdGet8 (PcdActiveTpmInterfaceType);
switch (TpmDeviceInterfaceDetected) {
case Tpm2PtpInterfaceTis:
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_STATE_CONTENT), L"TIS", NULL);
break;
case Tpm2PtpInterfaceFifo:
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_STATE_CONTENT), L"PTP FIFO", NULL);
break;
case Tpm2PtpInterfaceCrb:
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_STATE_CONTENT), L"PTP CRB", NULL);
break;
default:
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_STATE_CONTENT), L"Unknown", NULL);
break;
}
Tcg2ConfigInfo.TpmDeviceInterfaceAttempt = TpmDeviceInterfaceDetected;
switch (TpmDeviceInterfaceDetected) {
case Tpm2PtpInterfaceTis:
Tcg2ConfigInfo.TpmDeviceInterfacePtpFifoSupported = FALSE;
Tcg2ConfigInfo.TpmDeviceInterfacePtpCrbSupported = FALSE;
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_CAPABILITY_CONTENT), L"TIS", NULL);
break;
case Tpm2PtpInterfaceFifo:
case Tpm2PtpInterfaceCrb:
Tcg2ConfigInfo.TpmDeviceInterfacePtpFifoSupported = IsPtpFifoSupported ((VOID *)(UINTN)PcdGet64 (PcdTpmBaseAddress));
Tcg2ConfigInfo.TpmDeviceInterfacePtpCrbSupported = IsPtpCrbSupported ((VOID *)(UINTN)PcdGet64 (PcdTpmBaseAddress));
TempBuffer[0] = 0;
if (Tcg2ConfigInfo.TpmDeviceInterfacePtpFifoSupported) {
if (TempBuffer[0] != 0) {
StrCatS (TempBuffer, sizeof (TempBuffer) / sizeof (CHAR16), L", ");
}
StrCatS (TempBuffer, sizeof (TempBuffer) / sizeof (CHAR16), L"PTP FIFO");
}
if (Tcg2ConfigInfo.TpmDeviceInterfacePtpCrbSupported) {
if (TempBuffer[0] != 0) {
StrCatS (TempBuffer, sizeof (TempBuffer) / sizeof (CHAR16), L", ");
}
StrCatS (TempBuffer, sizeof (TempBuffer) / sizeof (CHAR16), L"PTP CRB");
}
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_CAPABILITY_CONTENT), TempBuffer, NULL);
break;
default:
Tcg2ConfigInfo.TpmDeviceInterfacePtpFifoSupported = FALSE;
Tcg2ConfigInfo.TpmDeviceInterfacePtpCrbSupported = FALSE;
HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_INTERFACE_CAPABILITY_CONTENT), L"Unknown", NULL);
break;
}
}
//
// Set ConfigInfo, to control the check box.
//
Status = gRT->SetVariable (
TCG2_STORAGE_INFO_NAME,
&gTcg2ConfigFormSetGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS,
sizeof (Tcg2ConfigInfo),
&Tcg2ConfigInfo
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Tcg2ConfigDriver: Fail to set TCG2_STORAGE_INFO_NAME\n"));
}
return EFI_SUCCESS;
}
/**
This function removes TCG2 configuration Form.
@param[in, out] PrivateData Points to TCG2 configuration private data.
**/
VOID
UninstallTcg2ConfigForm (
IN OUT TCG2_CONFIG_PRIVATE_DATA *PrivateData
)
{
//
// Uninstall HII package list
//
if (PrivateData->HiiHandle != NULL) {
HiiRemovePackages (PrivateData->HiiHandle);
PrivateData->HiiHandle = NULL;
}
//
// Uninstall HII Config Access Protocol
//
if (PrivateData->DriverHandle != NULL) {
gBS->UninstallMultipleProtocolInterfaces (
PrivateData->DriverHandle,
&gEfiDevicePathProtocolGuid,
&mTcg2HiiVendorDevicePath,
&gEfiHiiConfigAccessProtocolGuid,
&PrivateData->ConfigAccess,
NULL
);
PrivateData->DriverHandle = NULL;
}
FreePool (PrivateData);
}
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