sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add TPM2 implementation.

Browse Source 
signed off by: jiewen.yao@intel.com
reviewed by: guo.dong@intel.com

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14687 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jyao1
2013-09-18 05:31:18 +00:00
committed by jyao1
parent 2e61fb38b6
commit c1d932429e
98 changed files with 17387 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

77
SecurityPkg/Library/DxeTpmMeasurementLib/DxeTpmMeasurementLib.c
View File

@@ -1,7 +1,7 @@
/** @file
This library is used by other modules to measure data to TPM.
Copyright (c) 2012, Intel Corporation. All rights reserved. <BR>
Copyright (c) 2012 - 2013, Intel Corporation. All rights reserved. <BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -15,6 +15,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <PiDxe.h>
#include <Protocol/TcgService.h>
#include <Protocol/TrEEProtocol.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
@@ -93,6 +94,67 @@ Tpm12MeasureAndLogData (
return Status;
}
/**
Tpm20 measure and log data, and extend the measurement result into a specific PCR.
@param[in] PcrIndex PCR Index.
@param[in] EventType Event type.
@param[in] EventLog Measurement event log.
@param[in] LogLen Event log length in bytes.
@param[in] HashData The start of the data buffer to be hashed, extended.
@param[in] HashDataLen The length, in bytes, of the buffer referenced by HashData
@retval EFI_SUCCESS Operation completed successfully.
@retval EFI_UNSUPPORTED TPM device not available.
@retval EFI_OUT_OF_RESOURCES Out of memory.
@retval EFI_DEVICE_ERROR The operation was unsuccessful.
**/
EFI_STATUS
Tpm20MeasureAndLogData (
IN UINT32 PcrIndex,
IN UINT32 EventType,
IN VOID *EventLog,
IN UINT32 LogLen,
IN VOID *HashData,
IN UINT64 HashDataLen
)
{
EFI_STATUS Status;
EFI_TREE_PROTOCOL *TreeProtocol;
TrEE_EVENT *TreeEvent;
//
// TrEEPresentFlag is checked in HashLogExtendEvent
//
Status = gBS->LocateProtocol (&gEfiTrEEProtocolGuid, NULL, (VOID **) &TreeProtocol);
if (EFI_ERROR (Status)) {
return Status;
}
TreeEvent = (TrEE_EVENT *) AllocateZeroPool (LogLen + sizeof (TrEE_EVENT));
if(TreeEvent == NULL) {
return EFI_OUT_OF_RESOURCES;
}
TreeEvent->Size = (UINT32)LogLen + sizeof (TrEE_EVENT) - sizeof(TreeEvent->Event);
TreeEvent->Header.HeaderSize = sizeof(TrEE_EVENT_HEADER);
TreeEvent->Header.HeaderVersion = TREE_EVENT_HEADER_VERSION;
TreeEvent->Header.PCRIndex = PcrIndex;
TreeEvent->Header.EventType = EventType;
CopyMem (&TreeEvent->Event[0], EventLog, LogLen);
Status = TreeProtocol->HashLogExtendEvent (
TreeProtocol,
0,
(EFI_PHYSICAL_ADDRESS)(UINTN)HashData,
HashDataLen,
TreeEvent
);
FreePool (TreeEvent);
return Status;
}
/**
Tpm measure and log data, and extend the measurement result into a specific PCR.
@@ -132,6 +194,19 @@ TpmMeasureAndLogData (
HashData,
HashDataLen
);
if (EFI_ERROR (Status)) {
//
// Try to measure using Tpm20 protocol
//
Status = Tpm20MeasureAndLogData(
PcrIndex,
EventType,
EventLog,
LogLen,
HashData,
HashDataLen
);
}
return Status;
}