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SecurityPkg TPM2: Assign real copied count in CopyDigestListToBuffer() 

In CopyDigestListToBuffer() of Tpm2CommandLib, the count in returned
Buffer should be real copied DigestList count.

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 6a62309459
commit be93a17bbd
1 changed files with 6 additions and 1 deletions
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7
SecurityPkg/Library/Tpm2CommandLib/Tpm2Help.c
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@ -230,8 +230,11 @@ CopyDigestListToBuffer (
{
UINTN Index;
UINT16 DigestSize;
UINT32 DigestListCount;
UINT32 *DigestListCountPtr;
CopyMem (Buffer, &DigestList->count, sizeof(DigestList->count));
DigestListCountPtr = (UINT32 *) Buffer;
DigestListCount = 0;
Buffer = (UINT8 *)Buffer + sizeof(DigestList->count);
for (Index = 0; Index < DigestList->count; Index++) {
if (!IsHashAlgSupportedInHashAlgorithmMask(DigestList->digests[Index].hashAlg, HashAlgorithmMask)) {
@ -243,7 +246,9 @@ CopyDigestListToBuffer (
DigestSize = GetHashSizeFromAlgo (DigestList->digests[Index].hashAlg);
CopyMem (Buffer, &DigestList->digests[Index].digest, DigestSize);
Buffer = (UINT8 *)Buffer + DigestSize;
DigestListCount++;
}
WriteUnaligned32 (DigestListCountPtr, DigestListCount);
return Buffer;
}