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SecurityPkg Tcg2Dxe: Get correct digest list size 

Current code uses GetDigestListSize(DigestList) to get
digest list size, that is incorrect.
The code should get digest list size of digests copied
into event2 log, those digests are compacted, so
GetDigestListBinSize() should be used.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Chao Zhang <chao.b.zhang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Star Zeng 2016-11-16 17:17:36 +08:00
parent ab5b1f31c2
commit a9f1b2e2d7
1 changed files with 4 additions and 4 deletions
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8
SecurityPkg/Tcg/Tcg2Dxe/Tcg2Dxe.c
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@ -974,6 +974,7 @@ TcgDxeLogHashEvent (
EFI_STATUS RetStatus;
TCG_PCR_EVENT2 TcgPcrEvent2;
UINT8 *DigestBuffer;
UINT32 *EventSizePtr;
DEBUG ((EFI_D_INFO, "SupportedEventLogs - 0x%08x\n", mTcgDxeData.BsCap.SupportedEventLogs));
@ -1010,9 +1011,8 @@ TcgDxeLogHashEvent (
TcgPcrEvent2.PCRIndex = NewEventHdr->PCRIndex;
TcgPcrEvent2.EventType = NewEventHdr->EventType;
DigestBuffer = (UINT8 *)&TcgPcrEvent2.Digest;
DigestBuffer = CopyDigestListToBuffer (DigestBuffer, DigestList, mTcgDxeData.BsCap.ActivePcrBanks);
CopyMem (DigestBuffer, &NewEventHdr->EventSize, sizeof(NewEventHdr->EventSize));
DigestBuffer = DigestBuffer + sizeof(NewEventHdr->EventSize);
EventSizePtr = CopyDigestListToBuffer (DigestBuffer, DigestList, mTcgDxeData.BsCap.ActivePcrBanks);
CopyMem (EventSizePtr, &NewEventHdr->EventSize, sizeof(NewEventHdr->EventSize));
//
// Enter critical region
@ -1021,7 +1021,7 @@ TcgDxeLogHashEvent (
Status = TcgDxeLogEvent (
mTcg2EventInfo[Index].LogFormat,
&TcgPcrEvent2,
sizeof(TcgPcrEvent2.PCRIndex) + sizeof(TcgPcrEvent2.EventType) + GetDigestListSize (DigestList) + sizeof(TcgPcrEvent2.EventSize),
sizeof(TcgPcrEvent2.PCRIndex) + sizeof(TcgPcrEvent2.EventType) + GetDigestListBinSize (DigestBuffer) + sizeof(TcgPcrEvent2.EventSize),
NewEventData,
NewEventHdr->EventSize
);