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SecurityPkg Tcg2: Remove use of module internal API InternalIsZeroBuffer()

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This commit removes the internal implementation of the function
InternalIsZeroBuffer(). Instead, it will use the API IsZeroBuffer() from
BaseMemoryLib in MdePkg.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Chao Zhang <chao.b.zhang@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Hao Wu
2016-08-17 21:28:39 +08:00
parent 102b4c7cdd
commit 72388f9c10
3 changed files with 11 additions and 92 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.c
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@@ -224,33 +224,6 @@ EndofPeiSignalNotifyCallBack (
return EFI_SUCCESS;
}
/**
Check if buffer is all zero.
@param[in] Buffer Buffer to be checked.
@param[in] BufferSize Size of buffer to be checked.
@retval TRUE Buffer is all zero.
@retval FALSE Buffer is not all zero.
**/
BOOLEAN
InternalIsZeroBuffer (
IN VOID *Buffer,
IN UINTN BufferSize
)
{
UINT8 *BufferData;
UINTN Index;
BufferData = Buffer;
for (Index = 0; Index < BufferSize; Index++) {
if (BufferData[Index] != 0) {
return FALSE;
}
}
return TRUE;
}
/**
Get TPML_DIGEST_VALUES data size.
@@ -383,27 +356,27 @@ SetTpm2HashMask (
DEBUG ((EFI_D_INFO, "hash - %x\n", Pcrs.pcrSelections[Index].hash));
switch (Pcrs.pcrSelections[Index].hash) {
case TPM_ALG_SHA1:
if (!InternalIsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {
if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {
ActivePcrBanks |= EFI_TCG2_BOOT_HASH_ALG_SHA1;
}
break;
case TPM_ALG_SHA256:
if (!InternalIsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {
if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {
ActivePcrBanks |= EFI_TCG2_BOOT_HASH_ALG_SHA256;
}
break;
case TPM_ALG_SHA384:
if (!InternalIsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {
if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {
ActivePcrBanks |= EFI_TCG2_BOOT_HASH_ALG_SHA384;
}
break;
case TPM_ALG_SHA512:
if (!InternalIsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {
if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {
ActivePcrBanks |= EFI_TCG2_BOOT_HASH_ALG_SHA512;
}
break;
case TPM_ALG_SM3_256:
if (!InternalIsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {
if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {
ActivePcrBanks |= EFI_TCG2_BOOT_HASH_ALG_SM3_256;
}
break;