\r
#include <PiSmm.h>\r
\r
-#include <Guid/Tcg2PhysicalPresenceData.h>\r
-\r
-#include <Protocol/SmmVariable.h>\r
-\r
-#include <Library/BaseLib.h>\r
-#include <Library/DebugLib.h>\r
-#include <Library/BaseMemoryLib.h>\r
-#include <Library/Tcg2PpVendorLib.h>\r
-#include <Library/SmmServicesTableLib.h>\r
-\r
-#define PP_INF_VERSION_1_2 "1.2"\r
-\r
-EFI_SMM_VARIABLE_PROTOCOL *mTcg2PpSmmVariable;\r
-BOOLEAN mIsTcg2PPVerLowerThan_1_3 = FALSE;\r
-UINT32 mTcg2PhysicalPresenceFlags;\r
-\r
-/**\r
- The handler for TPM physical presence function:\r
- Return TPM Operation Response to OS Environment.\r
-\r
- This API should be invoked in OS runtime phase to interface with ACPI method.\r
-\r
- @param[out] MostRecentRequest Most recent operation request.\r
- @param[out] Response Response to the most recent operation request.\r
-\r
- @return Return Code for Return TPM Operation Response to OS Environment.\r
-**/\r
-UINT32\r
-EFIAPI\r
-Tcg2PhysicalPresenceLibReturnOperationResponseToOsFunction (\r
- OUT UINT32 *MostRecentRequest,\r
- OUT UINT32 *Response\r
- )\r
-{\r
- EFI_STATUS Status;\r
- UINTN DataSize;\r
- EFI_TCG2_PHYSICAL_PRESENCE PpData;\r
-\r
- DEBUG ((EFI_D_INFO, "[TPM2] ReturnOperationResponseToOsFunction\n"));\r
-\r
- //\r
- // Get the Physical Presence variable\r
- //\r
- DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE);\r
- Status = mTcg2PpSmmVariable->SmmGetVariable (\r
- TCG2_PHYSICAL_PRESENCE_VARIABLE,\r
- &gEfiTcg2PhysicalPresenceGuid,\r
- NULL,\r
- &DataSize,\r
- &PpData\r
- );\r
- if (EFI_ERROR (Status)) {\r
- *MostRecentRequest = 0;\r
- *Response = 0;\r
- DEBUG ((EFI_D_ERROR, "[TPM2] Get PP variable failure! Status = %r\n", Status));\r
- return TCG_PP_RETURN_TPM_OPERATION_RESPONSE_FAILURE;\r
- }\r
-\r
- *MostRecentRequest = PpData.LastPPRequest;\r
- *Response = PpData.PPResponse;\r
-\r
- return TCG_PP_RETURN_TPM_OPERATION_RESPONSE_SUCCESS;\r
-}\r
-\r
-/**\r
- The handler for TPM physical presence function:\r
- Submit TPM Operation Request to Pre-OS Environment and\r
- Submit TPM Operation Request to Pre-OS Environment 2.\r
-\r
- This API should be invoked in OS runtime phase to interface with ACPI method.\r
-\r
- Caution: This function may receive untrusted input.\r
-\r
- @param[in, out] Pointer to OperationRequest TPM physical presence operation request.\r
- @param[in, out] Pointer to RequestParameter TPM physical presence operation request parameter.\r
-\r
- @return Return Code for Submit TPM Operation Request to Pre-OS Environment and\r
- Submit TPM Operation Request to Pre-OS Environment 2.\r
- **/\r
-UINT32\r
-Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunctionEx (\r
- IN OUT UINT32 *OperationRequest,\r
- IN OUT UINT32 *RequestParameter\r
- )\r
-{\r
- EFI_STATUS Status;\r
- UINT32 ReturnCode;\r
- UINTN DataSize;\r
- EFI_TCG2_PHYSICAL_PRESENCE PpData;\r
- EFI_TCG2_PHYSICAL_PRESENCE_FLAGS Flags;\r
-\r
- DEBUG ((EFI_D_INFO, "[TPM2] SubmitRequestToPreOSFunction, Request = %x, %x\n", *OperationRequest, *RequestParameter));\r
- ReturnCode = TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS;\r
-\r
- //\r
- // Get the Physical Presence variable\r
- //\r
- DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE);\r
- Status = mTcg2PpSmmVariable->SmmGetVariable (\r
- TCG2_PHYSICAL_PRESENCE_VARIABLE,\r
- &gEfiTcg2PhysicalPresenceGuid,\r
- NULL,\r
- &DataSize,\r
- &PpData\r
- );\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "[TPM2] Get PP variable failure! Status = %r\n", Status));\r
- ReturnCode = TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE;\r
- goto EXIT;\r
- }\r
-\r
- if ((*OperationRequest > TCG2_PHYSICAL_PRESENCE_NO_ACTION_MAX) &&\r
- (*OperationRequest < TCG2_PHYSICAL_PRESENCE_STORAGE_MANAGEMENT_BEGIN) ) {\r
- ReturnCode = TCG_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED;\r
- goto EXIT;\r
- }\r
-\r
- if ((PpData.PPRequest != *OperationRequest) ||\r
- (PpData.PPRequestParameter != *RequestParameter)) {\r
- PpData.PPRequest = (UINT8)*OperationRequest;\r
- PpData.PPRequestParameter = *RequestParameter;\r
- DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE);\r
- Status = mTcg2PpSmmVariable->SmmSetVariable (\r
- TCG2_PHYSICAL_PRESENCE_VARIABLE,\r
- &gEfiTcg2PhysicalPresenceGuid,\r
- EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r
- DataSize,\r
- &PpData\r
- );\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "[TPM2] Set PP variable failure! Status = %r\n", Status));\r
- ReturnCode = TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE;\r
- goto EXIT;\r
- }\r
- }\r
-\r
- if (*OperationRequest >= TCG2_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {\r
- DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE_FLAGS);\r
- Status = mTcg2PpSmmVariable->SmmGetVariable (\r
- TCG2_PHYSICAL_PRESENCE_FLAGS_VARIABLE,\r
- &gEfiTcg2PhysicalPresenceGuid,\r
- NULL,\r
- &DataSize,\r
- &Flags\r
- );\r
- if (EFI_ERROR (Status)) {\r
- Flags.PPFlags = mTcg2PhysicalPresenceFlags;\r
- }\r
- ReturnCode = Tcg2PpVendorLibSubmitRequestToPreOSFunction (*OperationRequest, Flags.PPFlags, *RequestParameter);\r
- }\r
-\r
-EXIT:\r
- //\r
- // Sync PPRQ/PPRM from PP Variable if PP submission fails\r
- //\r
- if (ReturnCode != TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS) {\r
- DEBUG ((EFI_D_ERROR, "[TPM2] Submit PP Request failure! Sync PPRQ/PPRM with PP variable.\n", Status));\r
- DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE);\r
- ZeroMem(&PpData, DataSize);\r
- Status = mTcg2PpSmmVariable->SmmGetVariable (\r
- TCG2_PHYSICAL_PRESENCE_VARIABLE,\r
- &gEfiTcg2PhysicalPresenceGuid,\r
- NULL,\r
- &DataSize,\r
- &PpData\r
- );\r
- *OperationRequest = (UINT32)PpData.PPRequest;\r
- *RequestParameter = PpData.PPRequestParameter;\r
- }\r
-\r
- return ReturnCode;\r
-}\r
-\r
-/**\r
- The handler for TPM physical presence function:\r
- Submit TPM Operation Request to Pre-OS Environment and\r
- Submit TPM Operation Request to Pre-OS Environment 2.\r
-\r
- This API should be invoked in OS runtime phase to interface with ACPI method.\r
-\r
- Caution: This function may receive untrusted input.\r
-\r
- @param[in] OperationRequest TPM physical presence operation request.\r
- @param[in] RequestParameter TPM physical presence operation request parameter.\r
-\r
- @return Return Code for Submit TPM Operation Request to Pre-OS Environment and\r
- Submit TPM Operation Request to Pre-OS Environment 2.\r
-**/\r
-UINT32\r
-EFIAPI\r
-Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (\r
- IN UINT32 OperationRequest,\r
- IN UINT32 RequestParameter\r
- )\r
-{\r
- UINT32 TempOperationRequest;\r
- UINT32 TempRequestParameter;\r
-\r
- TempOperationRequest = OperationRequest;\r
- TempRequestParameter = RequestParameter;\r
-\r
- return Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunctionEx(&TempOperationRequest, &TempRequestParameter);\r
-}\r
-\r
-/**\r
- The handler for TPM physical presence function:\r
- Get User Confirmation Status for Operation.\r
-\r
- This API should be invoked in OS runtime phase to interface with ACPI method.\r
-\r
- Caution: This function may receive untrusted input.\r
-\r
- @param[in] OperationRequest TPM physical presence operation request.\r
-\r
- @return Return Code for Get User Confirmation Status for Operation.\r
-**/\r
-UINT32\r
-EFIAPI\r
-Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction (\r
- IN UINT32 OperationRequest\r
- )\r
-{\r
- EFI_STATUS Status;\r
- UINTN DataSize;\r
- EFI_TCG2_PHYSICAL_PRESENCE PpData;\r
- EFI_TCG2_PHYSICAL_PRESENCE_FLAGS Flags;\r
- BOOLEAN RequestConfirmed;\r
-\r
- DEBUG ((EFI_D_INFO, "[TPM2] GetUserConfirmationStatusFunction, Request = %x\n", OperationRequest));\r
-\r
- //\r
- // Get the Physical Presence variable\r
- //\r
- DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE);\r
- Status = mTcg2PpSmmVariable->SmmGetVariable (\r
- TCG2_PHYSICAL_PRESENCE_VARIABLE,\r
- &gEfiTcg2PhysicalPresenceGuid,\r
- NULL,\r
- &DataSize,\r
- &PpData\r
- );\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "[TPM2] Get PP variable failure! Status = %r\n", Status));\r
- return TCG_PP_GET_USER_CONFIRMATION_BLOCKED_BY_BIOS_CONFIGURATION;\r
- }\r
- //\r
- // Get the Physical Presence flags\r
- //\r
- DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE_FLAGS);\r
- Status = mTcg2PpSmmVariable->SmmGetVariable (\r
- TCG2_PHYSICAL_PRESENCE_FLAGS_VARIABLE,\r
- &gEfiTcg2PhysicalPresenceGuid,\r
- NULL,\r
- &DataSize,\r
- &Flags\r
- );\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "[TPM2] Get PP flags failure! Status = %r\n", Status));\r
- return TCG_PP_GET_USER_CONFIRMATION_BLOCKED_BY_BIOS_CONFIGURATION;\r
- }\r
-\r
- RequestConfirmed = FALSE;\r
-\r
- switch (OperationRequest) {\r
- case TCG2_PHYSICAL_PRESENCE_CLEAR:\r
- case TCG2_PHYSICAL_PRESENCE_ENABLE_CLEAR:\r
- case TCG2_PHYSICAL_PRESENCE_ENABLE_CLEAR_2:\r
- case TCG2_PHYSICAL_PRESENCE_ENABLE_CLEAR_3:\r
- if ((Flags.PPFlags & TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CLEAR) == 0) {\r
- RequestConfirmed = TRUE;\r
- }\r
- break;\r
-\r
- case TCG2_PHYSICAL_PRESENCE_NO_ACTION:\r
- case TCG2_PHYSICAL_PRESENCE_SET_PP_REQUIRED_FOR_CLEAR_TRUE:\r
- RequestConfirmed = TRUE;\r
- break;\r
-\r
- case TCG2_PHYSICAL_PRESENCE_SET_PP_REQUIRED_FOR_CLEAR_FALSE:\r
- break;\r
-\r
- case TCG2_PHYSICAL_PRESENCE_SET_PCR_BANKS:\r
- if ((Flags.PPFlags & TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CHANGE_PCRS) == 0) {\r
- RequestConfirmed = TRUE;\r
- }\r
- break;\r
-\r
- case TCG2_PHYSICAL_PRESENCE_CHANGE_EPS:\r
- if ((Flags.PPFlags & TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CHANGE_EPS) == 0) {\r
- RequestConfirmed = TRUE;\r
- }\r
- break;\r
-\r
- case TCG2_PHYSICAL_PRESENCE_LOG_ALL_DIGESTS:\r
- RequestConfirmed = TRUE;\r
- break;\r
-\r
- case TCG2_PHYSICAL_PRESENCE_ENABLE_BLOCK_SID:\r
- if ((Flags.PPFlags & TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_PP_REQUIRED_FOR_ENABLE_BLOCK_SID) == 0) {\r
- RequestConfirmed = TRUE;\r
- }\r
- break;\r
-\r
- case TCG2_PHYSICAL_PRESENCE_DISABLE_BLOCK_SID:\r
- if ((Flags.PPFlags & TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_PP_REQUIRED_FOR_DISABLE_BLOCK_SID) == 0) {\r
- RequestConfirmed = TRUE;\r
- }\r
- break;\r
-\r
- case TCG2_PHYSICAL_PRESENCE_SET_PP_REQUIRED_FOR_ENABLE_BLOCK_SID_FUNC_TRUE:\r
- case TCG2_PHYSICAL_PRESENCE_SET_PP_REQUIRED_FOR_DISABLE_BLOCK_SID_FUNC_TRUE:\r
- RequestConfirmed = TRUE;\r
- break;\r
-\r
- case TCG2_PHYSICAL_PRESENCE_SET_PP_REQUIRED_FOR_ENABLE_BLOCK_SID_FUNC_FALSE:\r
- case TCG2_PHYSICAL_PRESENCE_SET_PP_REQUIRED_FOR_DISABLE_BLOCK_SID_FUNC_FALSE:\r
- break;\r
-\r
- default:\r
- if (!mIsTcg2PPVerLowerThan_1_3) {\r
- if (OperationRequest < TCG2_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {\r
- //\r
- // TCG2 PP1.3 spec defined operations that are reserved or un-implemented\r
- //\r
- return TCG_PP_GET_USER_CONFIRMATION_NOT_IMPLEMENTED;\r
- }\r
- } else {\r
- //\r
- // TCG PP lower than 1.3. (1.0, 1.1, 1.2)\r
- //\r
- if (OperationRequest <= TCG2_PHYSICAL_PRESENCE_NO_ACTION_MAX) {\r
- RequestConfirmed = TRUE;\r
- } else if (OperationRequest < TCG2_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {\r
- return TCG_PP_GET_USER_CONFIRMATION_NOT_IMPLEMENTED;\r
- }\r
- }\r
- break;\r
- }\r
-\r
- if (OperationRequest >= TCG2_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {\r
- return Tcg2PpVendorLibGetUserConfirmationStatusFunction (OperationRequest, Flags.PPFlags);\r
- }\r
-\r
- if (RequestConfirmed) {\r
- return TCG_PP_GET_USER_CONFIRMATION_ALLOWED_AND_PPUSER_NOT_REQUIRED;\r
- } else {\r
- return TCG_PP_GET_USER_CONFIRMATION_ALLOWED_AND_PPUSER_REQUIRED;\r
- }\r
-}\r
+#include "MmTcg2PhysicalPresenceLibCommon.h"\r
\r
/**\r
The constructor function locates SmmVariable protocol.\r
**/\r
EFI_STATUS\r
EFIAPI\r
-Tcg2PhysicalPresenceLibConstructor (\r
+Tcg2PhysicalPresenceLibTraditionalConstructor (\r
IN EFI_HANDLE ImageHandle,\r
IN EFI_SYSTEM_TABLE *SystemTable\r
)\r
{\r
- EFI_STATUS Status;\r
-\r
- if (AsciiStrnCmp(PP_INF_VERSION_1_2, (CHAR8 *)PcdGetPtr(PcdTcgPhysicalPresenceInterfaceVer), sizeof(PP_INF_VERSION_1_2) - 1) >= 0) {\r
- mIsTcg2PPVerLowerThan_1_3 = TRUE;\r
- }\r
-\r
- //\r
- // Locate SmmVariableProtocol.\r
- //\r
- Status = gSmst->SmmLocateProtocol (&gEfiSmmVariableProtocolGuid, NULL, (VOID**)&mTcg2PpSmmVariable);\r
- ASSERT_EFI_ERROR (Status);\r
-\r
- mTcg2PhysicalPresenceFlags = PcdGet32(PcdTcg2PhysicalPresenceFlags);\r
-\r
- return EFI_SUCCESS;\r
+ return Tcg2PhysicalPresenceLibCommonConstructor ();\r
}\r
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