/**
Hash sequence complete and extend to PCR.
@param HashHandle Hash handle.
@param PcrIndex PCR to be extended.
@param DataToHash Data to be hashed.
@param DataToHashLen Data size.
@param DigestList Digest list.
@retval EFI_SUCCESS Hash sequence complete and DigestList is returned.
**/
EFI_STATUS
EFIAPI
HashCompleteAndExtend (
IN HASH_HANDLE HashHandle,
IN TPMI_DH_PCR PcrIndex,
IN VOID *DataToHash,
IN UINTN DataToHashLen,
OUT TPML_DIGEST_VALUES *DigestList
)
{
TPML_DIGEST_VALUES Digest;
HASH_INTERFACE_HOB *HashInterfaceHob;
HASH_HANDLE *HashCtx;
UINTN Index;
EFI_STATUS Status;
UINT32 HashMask;
HashInterfaceHob = InternalGetHashInterfaceHob (&gEfiCallerIdGuid);
if (HashInterfaceHob == NULL) {
return EFI_UNSUPPORTED;
}
if (HashInterfaceHob->HashInterfaceCount == 0) {
return EFI_UNSUPPORTED;
}
CheckSupportedHashMaskMismatch (HashInterfaceHob);
HashCtx = (HASH_HANDLE *)HashHandle;
ZeroMem (DigestList, sizeof(*DigestList));
for (Index = 0; Index < HashInterfaceHob->HashInterfaceCount; Index++) {
HashMask = Tpm2GetHashMaskFromAlgo (&HashInterfaceHob->HashInterface[Index].HashGuid);
if ((HashMask & PcdGet32 (PcdTpm2HashMask)) != 0) {
HashInterfaceHob->HashInterface[Index].HashUpdate (HashCtx[Index], DataToHash, DataToHashLen);
HashInterfaceHob->HashInterface[Index].HashFinal (HashCtx[Index], &Digest);
Tpm2SetHashToDigestList (DigestList, &Digest);
}
}
FreePool (HashCtx);
Status = Tpm2PcrExtend (
PcrIndex,
DigestList
);
return Status;
}
/**
Hash sequence complete and extend to PCR.
@param HashHandle Hash handle.
@param PcrIndex PCR to be extended.
@param DataToHash Data to be hashed.
@param DataToHashLen Data size.
@param DigestList Digest list.
@retval EFI_SUCCESS Hash sequence complete and DigestList is returned.
**/
EFI_STATUS
EFIAPI
HashCompleteAndExtend (
IN HASH_HANDLE HashHandle,
IN TPMI_DH_PCR PcrIndex,
IN VOID *DataToHash,
IN UINTN DataToHashLen,
OUT TPML_DIGEST_VALUES *DigestList
)
{
TPML_DIGEST_VALUES Digest;
HASH_HANDLE *HashCtx;
UINTN Index;
EFI_STATUS Status;
UINT32 HashMask;
if (mHashInterfaceCount == 0) {
return EFI_UNSUPPORTED;
}
HashCtx = (HASH_HANDLE *)HashHandle;
ZeroMem (DigestList, sizeof(*DigestList));
for (Index = 0; Index < mHashInterfaceCount; Index++) {
HashMask = Tpm2GetHashMaskFromAlgo (&mHashInterface[Index].HashGuid);
if ((HashMask & PcdGet32 (PcdTpm2HashMask)) != 0) {
mHashInterface[Index].HashUpdate (HashCtx[Index], DataToHash, DataToHashLen);
mHashInterface[Index].HashFinal (HashCtx[Index], &Digest);
Tpm2SetHashToDigestList (DigestList, &Digest);
}
}
FreePool (HashCtx);
Status = Tpm2PcrExtend (
PcrIndex,
DigestList
);
return Status;
}
