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PeiTpmMeasurementLib is updated to support both TCG measurement and CC Measurement. gEfiPeiMasterBootModePpiGuid is removed from [Depex] because it is not needed for the library. Cc: Jiewen Yao <jiewen.yao@intel.com> Signed-off-by: Min Xu <min.m.xu@intel.com> Signed-off-by: Ceping Sun <cepingx.sun@intel.com>
138 lines
3.8 KiB
C
138 lines
3.8 KiB
C
/** @file
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This library is used by other modules to measure data to TPM.
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Copyright (c) 2020, Intel Corporation. All rights reserved. <BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <PiPei.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/PeiServicesLib.h>
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#include <Library/PeiServicesTablePointerLib.h>
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#include <Library/DebugLib.h>
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#include <Library/HobLib.h>
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#include <Library/TpmMeasurementLib.h>
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#include <Ppi/Tcg.h>
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#include <Ppi/CcMeasurement.h>
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#include <IndustryStandard/UefiTcgPlatform.h>
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EFI_STATUS
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CcMeasureAndLogData (
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EDKII_CC_PPI *CcPpi,
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IN UINT32 PcrIndex,
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IN UINT32 EventType,
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IN VOID *EventLog,
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IN UINT32 LogLen,
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IN VOID *HashData,
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IN UINT64 HashDataLen
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)
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{
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EFI_STATUS Status;
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CC_EVENT_HDR CcEventHdr;
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EFI_CC_MR_INDEX MrIndex;
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Status = CcPpi->MapPcrToMrIndex (CcPpi, PcrIndex, &MrIndex);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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CcEventHdr.MrIndex = MrIndex;
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CcEventHdr.EventType = EventType;
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CcEventHdr.EventSize = LogLen;
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Status = CcPpi->HashLogExtendEvent (
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CcPpi,
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0,
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(EFI_PHYSICAL_ADDRESS)(UINTN)HashData,
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(UINTN)HashDataLen,
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&CcEventHdr,
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EventLog
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);
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return Status;
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}
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EFI_STATUS
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TcgMeasureAndLogData (
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EDKII_TCG_PPI *TcgPpi,
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IN UINT32 PcrIndex,
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IN UINT32 EventType,
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IN VOID *EventLog,
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IN UINT32 LogLen,
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IN VOID *HashData,
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IN UINT64 HashDataLen
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)
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{
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EFI_STATUS Status;
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TCG_PCR_EVENT_HDR TcgEventHdr;
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TcgEventHdr.PCRIndex = PcrIndex;
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TcgEventHdr.EventType = EventType;
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TcgEventHdr.EventSize = LogLen;
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Status = TcgPpi->HashLogExtendEvent (
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TcgPpi,
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0,
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HashData,
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(UINTN)HashDataLen,
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&TcgEventHdr,
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EventLog
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);
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return Status;
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}
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/**
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Tpm measure and log data, and extend the measurement result into a specific PCR.
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@param[in] PcrIndex PCR Index.
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@param[in] EventType Event type.
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@param[in] EventLog Measurement event log.
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@param[in] LogLen Event log length in bytes.
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@param[in] HashData The start of the data buffer to be hashed, extended.
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@param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData
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@retval EFI_SUCCESS Operation completed successfully.
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@retval EFI_UNSUPPORTED TPM device not available.
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@retval EFI_OUT_OF_RESOURCES Out of memory.
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@retval EFI_DEVICE_ERROR The operation was unsuccessful.
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**/
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EFI_STATUS
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EFIAPI
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TpmMeasureAndLogData (
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IN UINT32 PcrIndex,
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IN UINT32 EventType,
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IN VOID *EventLog,
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IN UINT32 LogLen,
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IN VOID *HashData,
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IN UINT64 HashDataLen
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)
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{
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EFI_STATUS Status;
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EDKII_TCG_PPI *TcgPpi;
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EDKII_CC_PPI *CcPpi;
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Status = PeiServicesLocatePpi (
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&gEdkiiCcPpiGuid,
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0,
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NULL,
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(VOID **)&CcPpi
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);
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if (!EFI_ERROR (Status)) {
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DEBUG ((DEBUG_INFO, "PeiTpmMeasureAndLogData with Cc Measurement Ppi \n"));
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return CcMeasureAndLogData (CcPpi, PcrIndex, EventType, EventLog, LogLen, HashData, HashDataLen);
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}
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Status = PeiServicesLocatePpi (
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&gEdkiiTcgPpiGuid,
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0,
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NULL,
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(VOID **)&TcgPpi
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);
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if (!EFI_ERROR (Status)) {
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DEBUG ((DEBUG_INFO, "PeiTpmMeasureAndLogData with Tcg Ppi \n"));
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Status = TcgMeasureAndLogData (TcgPpi, PcrIndex, EventType, EventLog, LogLen, HashData, HashDataLen);
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}
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return Status;
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}
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