}\r
}\r
\r
-/**\r
- Check if buffer is all zero.\r
-\r
- @param[in] Buffer Buffer to be checked.\r
- @param[in] BufferSize Size of buffer to be checked.\r
-\r
- @retval TRUE Buffer is all zero.\r
- @retval FALSE Buffer is not all zero.\r
-**/\r
-BOOLEAN\r
-IsZeroBuffer (\r
- IN VOID *Buffer,\r
- IN UINTN BufferSize\r
- )\r
-{\r
- UINT8 *BufferData;\r
- UINTN Index;\r
-\r
- BufferData = Buffer;\r
- for (Index = 0; Index < BufferSize; Index++) {\r
- if (BufferData[Index] != 0) {\r
- return FALSE;\r
- }\r
- }\r
- return TRUE;\r
-}\r
-\r
/**\r
Get All processors EFI_CPU_LOCATION in system. LocationBuf is allocated inside the function\r
Caller is responsible to free LocationBuf.\r
return Status;\r
}\r
\r
-/**\r
- This function get digest from digest list.\r
-\r
- @param HashAlg digest algorithm\r
- @param DigestList digest list\r
- @param Digest digest\r
-\r
- @retval EFI_SUCCESS Sha1Digest is found and returned.\r
- @retval EFI_NOT_FOUND Sha1Digest is not found.\r
-**/\r
-EFI_STATUS\r
-Tpm2GetDigestFromDigestList (\r
- IN TPMI_ALG_HASH HashAlg,\r
- IN TPML_DIGEST_VALUES *DigestList,\r
- IN VOID *Digest\r
- )\r
-{\r
- UINTN Index;\r
- UINT16 DigestSize;\r
-\r
- DigestSize = GetHashSizeFromAlgo (HashAlg);\r
- for (Index = 0; Index < DigestList->count; Index++) {\r
- if (DigestList->digests[Index].hashAlg == HashAlg) {\r
- CopyMem (\r
- Digest,\r
- &DigestList->digests[Index].digest,\r
- DigestSize\r
- );\r
- return EFI_SUCCESS;\r
- }\r
- }\r
-\r
- return EFI_NOT_FOUND;\r
-}\r
-\r
-/**\r
- Get TPML_DIGEST_VALUES data size.\r
-\r
- @param[in] DigestList TPML_DIGEST_VALUES data.\r
-\r
- @return TPML_DIGEST_VALUES data size.\r
-**/\r
-UINT32\r
-GetDigestListSize (\r
- IN TPML_DIGEST_VALUES *DigestList\r
- )\r
-{\r
- UINTN Index;\r
- UINT16 DigestSize;\r
- UINT32 TotalSize;\r
-\r
- TotalSize = sizeof(DigestList->count);\r
- for (Index = 0; Index < DigestList->count; Index++) {\r
- DigestSize = GetHashSizeFromAlgo (DigestList->digests[Index].hashAlg);\r
- TotalSize += sizeof(DigestList->digests[Index].hashAlg) + DigestSize;\r
- }\r
-\r
- return TotalSize;\r
-}\r
-\r
/**\r
Get TPML_DIGEST_VALUES compact binary buffer size.\r
\r
return TotalSize;\r
}\r
\r
-/**\r
- Return if hash alg is supported in TPM PCR bank.\r
-\r
- @param HashAlg Hash algorithm to be checked.\r
-\r
- @retval TRUE Hash algorithm is supported.\r
- @retval FALSE Hash algorithm is not supported.\r
-**/\r
-BOOLEAN\r
-IsHashAlgSupportedInPcrBank (\r
- IN TPMI_ALG_HASH HashAlg\r
- )\r
-{\r
- switch (HashAlg) {\r
- case TPM_ALG_SHA1:\r
- if ((mTcgDxeData.BsCap.ActivePcrBanks & EFI_TCG2_BOOT_HASH_ALG_SHA1) != 0) {\r
- return TRUE;\r
- }\r
- break;\r
- case TPM_ALG_SHA256:\r
- if ((mTcgDxeData.BsCap.ActivePcrBanks & EFI_TCG2_BOOT_HASH_ALG_SHA256) != 0) {\r
- return TRUE;\r
- }\r
- break;\r
- case TPM_ALG_SHA384:\r
- if ((mTcgDxeData.BsCap.ActivePcrBanks & EFI_TCG2_BOOT_HASH_ALG_SHA384) != 0) {\r
- return TRUE;\r
- }\r
- break;\r
- case TPM_ALG_SHA512:\r
- if ((mTcgDxeData.BsCap.ActivePcrBanks & EFI_TCG2_BOOT_HASH_ALG_SHA512) != 0) {\r
- return TRUE;\r
- }\r
- break;\r
- case TPM_ALG_SM3_256:\r
- if ((mTcgDxeData.BsCap.ActivePcrBanks & EFI_TCG2_BOOT_HASH_ALG_SM3_256) != 0) {\r
- return TRUE;\r
- }\r
- break;\r
- }\r
-\r
- return FALSE;\r
-}\r
-\r
-/**\r
- Copy TPML_DIGEST_VALUES into a buffer\r
-\r
- @param[in,out] Buffer Buffer to hold TPML_DIGEST_VALUES.\r
- @param[in] DigestList TPML_DIGEST_VALUES to be copied.\r
-\r
- @return The end of buffer to hold TPML_DIGEST_VALUES.\r
-**/\r
-VOID *\r
-CopyDigestListToBuffer (\r
- IN OUT VOID *Buffer,\r
- IN TPML_DIGEST_VALUES *DigestList\r
- )\r
-{\r
- UINTN Index;\r
- UINT16 DigestSize;\r
-\r
- CopyMem (Buffer, &DigestList->count, sizeof(DigestList->count));\r
- Buffer = (UINT8 *)Buffer + sizeof(DigestList->count);\r
- for (Index = 0; Index < DigestList->count; Index++) {\r
- if (!IsHashAlgSupportedInPcrBank (DigestList->digests[Index].hashAlg)) {\r
- DEBUG ((EFI_D_ERROR, "WARNING: TPM2 Event log has HashAlg unsupported by PCR bank (0x%x)\n", DigestList->digests[Index].hashAlg));\r
- continue;\r
- }\r
- CopyMem (Buffer, &DigestList->digests[Index].hashAlg, sizeof(DigestList->digests[Index].hashAlg));\r
- Buffer = (UINT8 *)Buffer + sizeof(DigestList->digests[Index].hashAlg);\r
- DigestSize = GetHashSizeFromAlgo (DigestList->digests[Index].hashAlg);\r
- CopyMem (Buffer, &DigestList->digests[Index].digest, DigestSize);\r
- Buffer = (UINT8 *)Buffer + DigestSize;\r
- }\r
-\r
- return Buffer;\r
-}\r
-\r
/**\r
Add a new entry to the Event Log.\r
\r
DEBUG ((EFI_D_INFO, " LogFormat - 0x%08x\n", mTcg2EventInfo[Index].LogFormat));\r
switch (mTcg2EventInfo[Index].LogFormat) {\r
case EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2:\r
- Status = Tpm2GetDigestFromDigestList (TPM_ALG_SHA1, DigestList, &NewEventHdr->Digest);\r
+ Status = GetDigestFromDigestList (TPM_ALG_SHA1, DigestList, &NewEventHdr->Digest);\r
if (!EFI_ERROR (Status)) {\r
//\r
// Enter critical region\r
TcgPcrEvent2.PCRIndex = NewEventHdr->PCRIndex;\r
TcgPcrEvent2.EventType = NewEventHdr->EventType;\r
DigestBuffer = (UINT8 *)&TcgPcrEvent2.Digest;\r
- DigestBuffer = CopyDigestListToBuffer (DigestBuffer, DigestList);\r
+ DigestBuffer = CopyDigestListToBuffer (DigestBuffer, DigestList, mTcgDxeData.BsCap.ActivePcrBanks);\r
CopyMem (DigestBuffer, &NewEventHdr->EventSize, sizeof(NewEventHdr->EventSize));\r
DigestBuffer = DigestBuffer + sizeof(NewEventHdr->EventSize);\r
\r
for (PcrIndex = 0; PcrIndex < 7; PcrIndex++) {\r
Status = MeasureSeparatorEvent (PcrIndex);\r
if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "Seperator Event not Measured. Error!\n"));\r
+ DEBUG ((DEBUG_ERROR, "Separator Event not Measured. Error!\n"));\r
}\r
}\r
\r
VOID *Registration;\r
UINT32 MaxCommandSize;\r
UINT32 MaxResponseSize;\r
- TPML_PCR_SELECTION Pcrs;\r
UINTN Index;\r
EFI_TCG2_EVENT_ALGORITHM_BITMAP TpmHashAlgorithmBitmap;\r
UINT32 ActivePCRBanks;\r
//\r
// Get supported PCR and current Active PCRs\r
//\r
- Status = Tpm2GetCapabilityPcrs (&Pcrs);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "Tpm2GetCapabilityPcrs fail!\n"));\r
- TpmHashAlgorithmBitmap = EFI_TCG2_BOOT_HASH_ALG_SHA1;\r
- ActivePCRBanks = EFI_TCG2_BOOT_HASH_ALG_SHA1;\r
- } else {\r
- DEBUG ((EFI_D_INFO, "Tpm2GetCapabilityPcrs Count - %08x\n", Pcrs.count));\r
- TpmHashAlgorithmBitmap = 0;\r
- ActivePCRBanks = 0;\r
- for (Index = 0; Index < Pcrs.count; Index++) {\r
- DEBUG ((EFI_D_INFO, "hash - %x\n", Pcrs.pcrSelections[Index].hash));\r
- switch (Pcrs.pcrSelections[Index].hash) {\r
- case TPM_ALG_SHA1:\r
- TpmHashAlgorithmBitmap |= EFI_TCG2_BOOT_HASH_ALG_SHA1;\r
- if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {\r
- ActivePCRBanks |= EFI_TCG2_BOOT_HASH_ALG_SHA1;\r
- } \r
- break;\r
- case TPM_ALG_SHA256:\r
- TpmHashAlgorithmBitmap |= EFI_TCG2_BOOT_HASH_ALG_SHA256;\r
- if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {\r
- ActivePCRBanks |= EFI_TCG2_BOOT_HASH_ALG_SHA256;\r
- }\r
- break;\r
- case TPM_ALG_SHA384:\r
- TpmHashAlgorithmBitmap |= EFI_TCG2_BOOT_HASH_ALG_SHA384;\r
- if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {\r
- ActivePCRBanks |= EFI_TCG2_BOOT_HASH_ALG_SHA384;\r
- }\r
- break;\r
- case TPM_ALG_SHA512:\r
- TpmHashAlgorithmBitmap |= EFI_TCG2_BOOT_HASH_ALG_SHA512;\r
- if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {\r
- ActivePCRBanks |= EFI_TCG2_BOOT_HASH_ALG_SHA512;\r
- }\r
- break;\r
- case TPM_ALG_SM3_256:\r
- TpmHashAlgorithmBitmap |= EFI_TCG2_BOOT_HASH_ALG_SM3_256;\r
- if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {\r
- ActivePCRBanks |= EFI_TCG2_BOOT_HASH_ALG_SM3_256;\r
- }\r
- break;\r
- }\r
- }\r
- }\r
+ Status = Tpm2GetCapabilitySupportedAndActivePcrs (&TpmHashAlgorithmBitmap, &ActivePCRBanks);\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
mTcgDxeData.BsCap.HashAlgorithmBitmap = TpmHashAlgorithmBitmap & PcdGet32 (PcdTcg2HashAlgorithmBitmap);\r
mTcgDxeData.BsCap.ActivePcrBanks = ActivePCRBanks & PcdGet32 (PcdTcg2HashAlgorithmBitmap);\r
\r
projects / mirror_edk2.git / blobdiff