\r
ExecutePendingTpmRequest() will receive untrusted input and do validation.\r
\r
-Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r
-This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
/**\r
Get TPM physical presence permanent flags.\r
\r
- @param[in] TcgProtocol EFI TCG Protocol instance. \r
- @param[out] LifetimeLock physicalPresenceLifetimeLock permanent flag. \r
+ @param[in] TcgProtocol EFI TCG Protocol instance.\r
+ @param[out] LifetimeLock physicalPresenceLifetimeLock permanent flag.\r
@param[out] CmdEnable physicalPresenceCMDEnable permanent flag.\r
- \r
+\r
@retval EFI_SUCCESS Flags were returns successfully.\r
@retval other Failed to locate EFI TCG Protocol.\r
\r
UINT8 SendBuffer[sizeof (*TpmRqu) + sizeof (UINT32) * 3];\r
TPM_PERMANENT_FLAGS *TpmPermanentFlags;\r
UINT8 RecvBuffer[40];\r
- \r
+\r
//\r
// Fill request header\r
//\r
TpmRsp = (TPM_RSP_COMMAND_HDR*)RecvBuffer;\r
TpmRqu = (TPM_RQU_COMMAND_HDR*)SendBuffer;\r
- \r
+\r
TpmRqu->tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r
TpmRqu->paramSize = SwapBytes32 (sizeof (SendBuffer));\r
TpmRqu->ordinal = SwapBytes32 (TPM_ORD_GetCapability);\r
SendBufPtr = (UINT32*)(TpmRqu + 1);\r
WriteUnaligned32 (SendBufPtr++, SwapBytes32 (TPM_CAP_FLAG));\r
WriteUnaligned32 (SendBufPtr++, SwapBytes32 (sizeof (TPM_CAP_FLAG_PERMANENT)));\r
- WriteUnaligned32 (SendBufPtr, SwapBytes32 (TPM_CAP_FLAG_PERMANENT)); \r
- \r
+ WriteUnaligned32 (SendBufPtr, SwapBytes32 (TPM_CAP_FLAG_PERMANENT));\r
+\r
Status = TcgProtocol->PassThroughToTpm (\r
TcgProtocol,\r
sizeof (SendBuffer),\r
ASSERT_EFI_ERROR (Status);\r
ASSERT (TpmRsp->tag == SwapBytes16 (TPM_TAG_RSP_COMMAND));\r
ASSERT (TpmRsp->returnCode == 0);\r
- \r
+\r
TpmPermanentFlags = (TPM_PERMANENT_FLAGS *)&RecvBuffer[sizeof (TPM_RSP_COMMAND_HDR) + sizeof (UINT32)];\r
- \r
+\r
if (LifetimeLock != NULL) {\r
*LifetimeLock = TpmPermanentFlags->physicalPresenceLifetimeLock;\r
}\r
/**\r
Issue TSC_PhysicalPresence command to TPM.\r
\r
- @param[in] TcgProtocol EFI TCG Protocol instance. \r
- @param[in] PhysicalPresence The state to set the TPM's Physical Presence flags. \r
- \r
+ @param[in] TcgProtocol EFI TCG Protocol instance.\r
+ @param[in] PhysicalPresence The state to set the TPM's Physical Presence flags.\r
+\r
@retval EFI_SUCCESS TPM executed the command successfully.\r
@retval EFI_SECURITY_VIOLATION TPM returned error when executing the command.\r
@retval other Failed to locate EFI TCG Protocol.\r
TpmRqu->tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r
TpmRqu->paramSize = SwapBytes32 (sizeof (Buffer));\r
TpmRqu->ordinal = SwapBytes32 (TSC_ORD_PhysicalPresence);\r
- WriteUnaligned16 (TpmPp, (TPM_PHYSICAL_PRESENCE) SwapBytes16 (PhysicalPresence)); \r
+ WriteUnaligned16 (TpmPp, (TPM_PHYSICAL_PRESENCE) SwapBytes16 (PhysicalPresence));\r
\r
Status = TcgProtocol->PassThroughToTpm (\r
TcgProtocol,\r
//\r
return EFI_SECURITY_VIOLATION;\r
}\r
- \r
+\r
return Status;\r
}\r
\r
/**\r
Issue a TPM command for which no additional output data will be returned.\r
\r
- @param[in] TcgProtocol EFI TCG Protocol instance. \r
- @param[in] Ordinal TPM command code. \r
- @param[in] AdditionalParameterSize Additional parameter size. \r
- @param[in] AdditionalParameters Pointer to the Additional paramaters. \r
- \r
- @retval TCG_PP_OPERATION_RESPONSE_BIOS_FAILURE Error occurred during sending command to TPM or \r
+ @param[in] TcgProtocol EFI TCG Protocol instance.\r
+ @param[in] Ordinal TPM command code.\r
+ @param[in] AdditionalParameterSize Additional parameter size.\r
+ @param[in] AdditionalParameters Pointer to the Additional paramaters.\r
+\r
+ @retval TCG_PP_OPERATION_RESPONSE_BIOS_FAILURE Error occurred during sending command to TPM or\r
receiving response from TPM.\r
@retval Others Return code from the TPM device after command execution.\r
\r
@param[in] TcgProtocol EFI TCG Protocol instance.\r
@param[in] CommandCode Physical presence operation value.\r
@param[in, out] PpiFlags The physical presence interface flags.\r
- \r
+\r
@retval TCG_PP_OPERATION_RESPONSE_BIOS_FAILURE Unknown physical presence operation.\r
- @retval TCG_PP_OPERATION_RESPONSE_BIOS_FAILURE Error occurred during sending command to TPM or \r
+ @retval TCG_PP_OPERATION_RESPONSE_BIOS_FAILURE Error occurred during sending command to TPM or\r
receiving response from TPM.\r
@retval Others Return code from the TPM device after command execution.\r
\r
case PHYSICAL_PRESENCE_SET_NO_PPI_MAINTENANCE_TRUE:\r
PpiFlags->PPFlags |= TCG_BIOS_TPM_MANAGEMENT_FLAG_NO_PPI_MAINTENANCE;\r
return 0;\r
- \r
+\r
case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR:\r
//\r
// PHYSICAL_PRESENCE_ENABLE_ACTIVATE + PHYSICAL_PRESENCE_CLEAR\r
} else {\r
TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_CLEAR_ENABLE_ACTIVATE, PpiFlags);\r
PpiFlags->PPFlags &= ~TCG_VENDOR_LIB_FLAG_RESET_TRACK;\r
- } \r
+ }\r
return TpmResponse;\r
\r
default:\r
UINT16 InputKey;\r
UINTN Index;\r
\r
- InputKey = 0; \r
+ InputKey = 0;\r
do {\r
Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);\r
if (Status == EFI_NOT_READY) {\r
if (InputKey != SCAN_ESC) {\r
return TRUE;\r
}\r
- \r
+\r
return FALSE;\r
}\r
\r
/**\r
The constructor function register UNI strings into imageHandle.\r
- \r
- It will ASSERT() if that operation fails and it will always return EFI_SUCCESS. \r
+\r
+ It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.\r
\r
@param ImageHandle The firmware allocated handle for the EFI image.\r
@param SystemTable A pointer to the EFI System Table.\r
- \r
+\r
@retval EFI_SUCCESS The constructor successfully added string package.\r
@retval Other value The constructor can't add string package.\r
\r
{\r
CHAR16 *ConfirmText;\r
CHAR16 *TmpStr1;\r
- CHAR16 *TmpStr2; \r
+ CHAR16 *TmpStr2;\r
UINTN BufSize;\r
BOOLEAN CautionKey;\r
UINT16 Index;\r
CHAR16 DstStr[81];\r
- \r
+\r
TmpStr2 = NULL;\r
CautionKey = FALSE;\r
BufSize = CONFIRM_BUFFER_SIZE;\r
switch (TpmPpCommand) {\r
case PHYSICAL_PRESENCE_ENABLE:\r
TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ENABLE));\r
- \r
+\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r
UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r
FreePool (TmpStr1);\r
\r
case PHYSICAL_PRESENCE_DISABLE:\r
TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_DISABLE));\r
- \r
+\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r
UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r
FreePool (TmpStr1);\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), TmpStr1, (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
FreePool (TmpStr1);\r
break;\r
- \r
+\r
case PHYSICAL_PRESENCE_ACTIVATE:\r
TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACTIVATE));\r
- \r
+\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r
UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r
FreePool (TmpStr1);\r
\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), TmpStr1, (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
- FreePool (TmpStr1); \r
+ FreePool (TmpStr1);\r
break;\r
\r
case PHYSICAL_PRESENCE_CLEAR:\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_CLEAR));\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), TmpStr1, (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), L" \n\n", (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
- FreePool (TmpStr1); \r
+ FreePool (TmpStr1);\r
\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CAUTION_KEY));\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), TmpStr1, (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
\r
case PHYSICAL_PRESENCE_DEACTIVATE_DISABLE:\r
TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_DEACTIVATE_DISABLE));\r
- \r
- TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR)); \r
+\r
+ TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r
UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r
FreePool (TmpStr1);\r
\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NOTE_OFF));\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), TmpStr1, (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
FreePool (TmpStr1);\r
- \r
+\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING));\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), TmpStr1, (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
FreePool (TmpStr1);\r
\r
case PHYSICAL_PRESENCE_SET_OWNER_INSTALL_TRUE:\r
TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ALLOW_TAKE_OWNERSHIP));\r
- \r
- TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR)); \r
+\r
+ TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r
UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r
FreePool (TmpStr1);\r
\r
\r
case PHYSICAL_PRESENCE_SET_OWNER_INSTALL_FALSE:\r
TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_DISALLOW_TAKE_OWNERSHIP));\r
- \r
- TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR)); \r
+\r
+ TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r
UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r
FreePool (TmpStr1);\r
\r
\r
case PHYSICAL_PRESENCE_DEACTIVATE_DISABLE_OWNER_FALSE:\r
TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_TURN_OFF));\r
- \r
- TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR)); \r
+\r
+ TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r
UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r
FreePool (TmpStr1);\r
\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NOTE_OFF));\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), TmpStr1, (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
FreePool (TmpStr1);\r
- \r
+\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING));\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), TmpStr1, (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
FreePool (TmpStr1);\r
case PHYSICAL_PRESENCE_DEFERRED_PP_UNOWNERED_FIELD_UPGRADE:\r
CautionKey = TRUE;\r
TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_UNOWNED_FIELD_UPGRADE));\r
- \r
- TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_UPGRADE_HEAD_STR)); \r
+\r
+ TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_UPGRADE_HEAD_STR));\r
UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r
FreePool (TmpStr1);\r
- \r
+\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_MAINTAIN));\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), TmpStr1, (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
FreePool (TmpStr1);\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_CLEAR));\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), TmpStr1, (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), L" \n\n", (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
- FreePool (TmpStr1); \r
+ FreePool (TmpStr1);\r
\r
TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CAUTION_KEY));\r
StrnCatS (ConfirmText, BufSize / sizeof (CHAR16), TmpStr1, (BufSize / sizeof (CHAR16)) - StrLen (ConfirmText) - 1);\r
\r
DstStr[80] = L'\0';\r
for (Index = 0; Index < StrLen (ConfirmText); Index += 80) {\r
- StrnCpyS(DstStr, sizeof (DstStr) / sizeof (CHAR16), ConfirmText + Index, sizeof (DstStr) / sizeof (CHAR16) - 1); \r
- Print (DstStr); \r
+ StrnCpyS(DstStr, sizeof (DstStr) / sizeof (CHAR16), ConfirmText + Index, sizeof (DstStr) / sizeof (CHAR16) - 1);\r
+ Print (DstStr);\r
}\r
- \r
+\r
FreePool (TmpStr1);\r
FreePool (TmpStr2);\r
FreePool (ConfirmText);\r
return TRUE;\r
}\r
\r
- return FALSE; \r
+ return FALSE;\r
}\r
\r
/**\r
- Check if there is a valid physical presence command request. Also updates parameter value \r
+ Check if there is a valid physical presence command request. Also updates parameter value\r
to whether the requested physical presence command already confirmed by user\r
- \r
+\r
@param[in] TcgPpData EFI TCG Physical Presence request data.\r
- @param[in] Flags The physical presence interface flags. \r
+ @param[in] Flags The physical presence interface flags.\r
@param[out] RequestConfirmed If the physical presence operation command required user confirm from UI.\r
- True, it indicates the command doesn't require user confirm, or already confirmed \r
+ True, it indicates the command doesn't require user confirm, or already confirmed\r
in last boot cycle by user.\r
False, it indicates the command need user confirm from UI.\r
\r
TcgPpData variable is external input, so this function will validate\r
its data structure to be valid value.\r
\r
- @param[in] TcgProtocol EFI TCG Protocol instance. \r
+ @param[in] TcgProtocol EFI TCG Protocol instance.\r
@param[in] TcgPpData Point to the physical presence NV variable.\r
@param[in] Flags The physical presence interface flags.\r
\r
} else {\r
if (!RequestConfirmed) {\r
//\r
- // Print confirm text and wait for approval. \r
+ // Print confirm text and wait for approval.\r
//\r
RequestConfirmed = UserConfirm (TcgPpData->PPRequest);\r
}\r
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r
sizeof (EFI_PHYSICAL_PRESENCE_FLAGS),\r
&NewFlags\r
- ); \r
+ );\r
if (EFI_ERROR (Status)) {\r
return;\r
}\r
}\r
- \r
+\r
//\r
// Clear request\r
//\r
if ((NewFlags.PPFlags & TCG_VENDOR_LIB_FLAG_RESET_TRACK) == 0) {\r
TcgPpData->LastPPRequest = TcgPpData->PPRequest;\r
- TcgPpData->PPRequest = PHYSICAL_PRESENCE_NO_ACTION; \r
+ TcgPpData->PPRequest = PHYSICAL_PRESENCE_NO_ACTION;\r
}\r
\r
//\r
case PHYSICAL_PRESENCE_DEFERRED_PP_UNOWNERED_FIELD_UPGRADE:\r
case PHYSICAL_PRESENCE_CLEAR_ENABLE_ACTIVATE:\r
case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR:\r
- case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR_ENABLE_ACTIVATE: \r
+ case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR_ENABLE_ACTIVATE:\r
break;\r
default:\r
if (TcgPpData->LastPPRequest >= TCG_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {\r
\r
Print (L"Rebooting system to make TPM settings in effect\n");\r
gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);\r
- ASSERT (FALSE); \r
+ ASSERT (FALSE);\r
}\r
\r
/**\r
Check and execute the pending TPM request and Lock TPM.\r
\r
- The TPM request may come from OS or BIOS. This API will display request information and wait \r
+ The TPM request may come from OS or BIOS. This API will display request information and wait\r
for user confirmation if TPM request exists. The TPM request will be sent to TPM device after\r
- the TPM request is confirmed, and one or more reset may be required to make TPM request to \r
+ the TPM request is confirmed, and one or more reset may be required to make TPM request to\r
take effect. At last, it will lock TPM to prevent TPM state change by malware.\r
- \r
+\r
This API should be invoked after console in and console out are all ready as they are required\r
- to display request information and get user input to confirm the request. This API should also \r
+ to display request information and get user input to confirm the request. This API should also\r
be invoked as early as possible as TPM is locked in this function.\r
- \r
+\r
**/\r
VOID\r
EFIAPI\r
EFI_TCG_PROTOCOL *TcgProtocol;\r
EDKII_VARIABLE_LOCK_PROTOCOL *VariableLockProtocol;\r
EFI_PHYSICAL_PRESENCE_FLAGS PpiFlags;\r
- \r
+\r
Status = gBS->LocateProtocol (&gEfiTcgProtocolGuid, NULL, (VOID **)&TcgProtocol);\r
if (EFI_ERROR (Status)) {\r
return ;\r
DEBUG ((EFI_D_INFO, "[TPM] PpiFlags = %x\n", PpiFlags.PPFlags));\r
\r
//\r
- // This flags variable controls whether physical presence is required for TPM command. \r
+ // This flags variable controls whether physical presence is required for TPM command.\r
// It should be protected from malicious software. We set it as read-only variable here.\r
//\r
Status = gBS->LocateProtocol (&gEdkiiVariableLockProtocolGuid, NULL, (VOID **)&VariableLockProtocol);\r
ASSERT_EFI_ERROR (Status);\r
}\r
}\r
- \r
+\r
//\r
// Initialize physical presence variable.\r
//\r
if (EFI_ERROR (Status)) {\r
return ;\r
}\r
- \r
+\r
if (!CmdEnable) {\r
if (LifetimeLock) {\r
//\r
return ;\r
}\r
}\r
- \r
+\r
//\r
// Set operator physical presence flags\r
//\r
\r
//\r
// Execute pending TPM request.\r
- // \r
+ //\r
ExecutePendingTpmRequest (TcgProtocol, &TcgPpData, PpiFlags);\r
DEBUG ((EFI_D_INFO, "[TPM] PPResponse = %x\n", TcgPpData.PPResponse));\r
\r
\r
The TPM request may come from OS. This API will check if TPM request exists and need user\r
input to confirmation.\r
- \r
+\r
@retval TRUE TPM needs input to confirm user physical presence.\r
@retval FALSE TPM doesn't need input to confirm user physical presence.\r
\r
BOOLEAN CmdEnable;\r
EFI_TCG_PROTOCOL *TcgProtocol;\r
EFI_PHYSICAL_PRESENCE_FLAGS PpiFlags;\r
- \r
+\r
Status = gBS->LocateProtocol (&gEfiTcgProtocolGuid, NULL, (VOID **)&TcgProtocol);\r
if (EFI_ERROR (Status)) {\r
return FALSE;\r
if (EFI_ERROR (Status)) {\r
return FALSE;\r
}\r
- \r
+\r
if (TcgPpData.PPRequest == PHYSICAL_PRESENCE_NO_ACTION) {\r
//\r
// No operation request\r
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