\r
@retval EFI_SUCCESS Successfully measure image.\r
@retval EFI_OUT_OF_RESOURCES No enough resource to measure image.\r
+ @retval EFI_UNSUPPORTED ImageType is unsupported or PE image is mal-format. \r
@retval other error value\r
+\r
**/\r
EFI_STATUS\r
EFIAPI\r
IN EFI_DEVICE_PATH_PROTOCOL *FilePath\r
)\r
{\r
- EFI_STATUS Status;\r
- TCG_PCR_EVENT *TcgEvent;\r
- EFI_IMAGE_LOAD_EVENT *ImageLoad;\r
- UINT32 FilePathSize;\r
- VOID *Sha1Ctx;\r
- UINTN CtxSize;\r
- EFI_IMAGE_DOS_HEADER *DosHdr;\r
- UINT32 PeCoffHeaderOffset;\r
- EFI_IMAGE_SECTION_HEADER *Section;\r
- UINT8 *HashBase;\r
- UINTN HashSize;\r
- UINTN SumOfBytesHashed;\r
- EFI_IMAGE_SECTION_HEADER *SectionHeader;\r
- UINTN Index, Pos;\r
- UINT16 Magic;\r
- UINT32 EventSize;\r
- UINT32 EventNumber;\r
- EFI_PHYSICAL_ADDRESS EventLogLastEntry;\r
+ EFI_STATUS Status;\r
+ TCG_PCR_EVENT *TcgEvent;\r
+ EFI_IMAGE_LOAD_EVENT *ImageLoad;\r
+ UINT32 FilePathSize;\r
+ VOID *Sha1Ctx;\r
+ UINTN CtxSize;\r
+ EFI_IMAGE_DOS_HEADER *DosHdr;\r
+ UINT32 PeCoffHeaderOffset;\r
+ EFI_IMAGE_SECTION_HEADER *Section;\r
+ UINT8 *HashBase;\r
+ UINTN HashSize;\r
+ UINTN SumOfBytesHashed;\r
+ EFI_IMAGE_SECTION_HEADER *SectionHeader;\r
+ UINTN Index;\r
+ UINTN Pos;\r
+ UINT16 Magic;\r
+ UINT32 EventSize;\r
+ UINT32 EventNumber;\r
+ EFI_PHYSICAL_ADDRESS EventLogLastEntry;\r
EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r
+ UINT32 NumberOfRvaAndSizes;\r
+ BOOLEAN HashStatus;\r
+ UINT32 CertSize;\r
\r
- Status = EFI_SUCCESS;\r
+ Status = EFI_UNSUPPORTED;\r
ImageLoad = NULL;\r
SectionHeader = NULL;\r
Sha1Ctx = NULL;\r
"TcgMeasurePeImage: Unknown subsystem type %d",\r
ImageType\r
));\r
- Status = EFI_UNSUPPORTED;\r
goto Finish;\r
}\r
\r
if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r
PeCoffHeaderOffset = DosHdr->e_lfanew;\r
}\r
- if (((EFI_TE_IMAGE_HEADER *)((UINT8 *) (UINTN) ImageAddress + PeCoffHeaderOffset))->Signature\r
- == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r
+\r
+ Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINT8 *) (UINTN) ImageAddress + PeCoffHeaderOffset);\r
+ if (Hdr.Pe32->Signature != EFI_IMAGE_NT_SIGNATURE) {\r
goto Finish;\r
}\r
\r
goto Finish;\r
}\r
\r
- Sha1Init (Sha1Ctx);\r
+ HashStatus = Sha1Init (Sha1Ctx);\r
+ if (!HashStatus) {\r
+ goto Finish;\r
+ }\r
\r
//\r
// Measuring PE/COFF Image Header;\r
// But CheckSum field and SECURITY data directory (certificate) are excluded\r
//\r
- Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINT8 *) (UINTN) ImageAddress + PeCoffHeaderOffset);\r
- Magic = Hdr.Pe32->OptionalHeader.Magic;\r
+ Magic = Hdr.Pe32->OptionalHeader.Magic;\r
\r
//\r
// 3. Calculate the distance from the base of the image header to the image checksum address.\r
//\r
// Use PE32 offset\r
//\r
+ NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;\r
HashSize = (UINTN) ((UINT8 *)(&Hdr.Pe32->OptionalHeader.CheckSum) - HashBase);\r
} else {\r
//\r
// Use PE32+ offset\r
//\r
+ NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;\r
HashSize = (UINTN) ((UINT8 *)(&Hdr.Pe32Plus->OptionalHeader.CheckSum) - HashBase);\r
}\r
\r
- Sha1Update (Sha1Ctx, HashBase, HashSize);\r
+ HashStatus = Sha1Update (Sha1Ctx, HashBase, HashSize);\r
+ if (!HashStatus) {\r
+ goto Finish;\r
+ } \r
\r
//\r
// 5. Skip over the image checksum (it occupies a single ULONG).\r
- // 6. Get the address of the beginning of the Cert Directory.\r
- // 7. Hash everything from the end of the checksum to the start of the Cert Directory.\r
//\r
- if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ if (NumberOfRvaAndSizes <= EFI_IMAGE_DIRECTORY_ENTRY_SECURITY) {\r
//\r
- // Use PE32 offset\r
+ // 6. Since there is no Cert Directory in optional header, hash everything\r
+ // from the end of the checksum to the end of image header.\r
//\r
- HashBase = (UINT8 *) &Hdr.Pe32->OptionalHeader.CheckSum + sizeof (UINT32);\r
- HashSize = (UINTN) ((UINT8 *)(&Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY]) - HashBase);\r
+ if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // Use PE32 offset.\r
+ //\r
+ HashBase = (UINT8 *) &Hdr.Pe32->OptionalHeader.CheckSum + sizeof (UINT32);\r
+ HashSize = Hdr.Pe32->OptionalHeader.SizeOfHeaders - (UINTN) (HashBase - ImageAddress);\r
+ } else {\r
+ //\r
+ // Use PE32+ offset.\r
+ //\r
+ HashBase = (UINT8 *) &Hdr.Pe32Plus->OptionalHeader.CheckSum + sizeof (UINT32);\r
+ HashSize = Hdr.Pe32Plus->OptionalHeader.SizeOfHeaders - (UINTN) (HashBase - ImageAddress);\r
+ }\r
+\r
+ if (HashSize != 0) {\r
+ HashStatus = Sha1Update (Sha1Ctx, HashBase, HashSize);\r
+ if (!HashStatus) {\r
+ goto Finish;\r
+ }\r
+ } \r
} else {\r
//\r
- // Use PE32+ offset\r
- // \r
- HashBase = (UINT8 *) &Hdr.Pe32Plus->OptionalHeader.CheckSum + sizeof (UINT32);\r
- HashSize = (UINTN) ((UINT8 *)(&Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY]) - HashBase);\r
- }\r
+ // 7. Hash everything from the end of the checksum to the start of the Cert Directory.\r
+ //\r
+ if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // Use PE32 offset\r
+ //\r
+ HashBase = (UINT8 *) &Hdr.Pe32->OptionalHeader.CheckSum + sizeof (UINT32);\r
+ HashSize = (UINTN) ((UINT8 *)(&Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY]) - HashBase);\r
+ } else {\r
+ //\r
+ // Use PE32+ offset\r
+ // \r
+ HashBase = (UINT8 *) &Hdr.Pe32Plus->OptionalHeader.CheckSum + sizeof (UINT32);\r
+ HashSize = (UINTN) ((UINT8 *)(&Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY]) - HashBase);\r
+ }\r
\r
- Sha1Update (Sha1Ctx, HashBase, HashSize);\r
+ if (HashSize != 0) {\r
+ HashStatus = Sha1Update (Sha1Ctx, HashBase, HashSize);\r
+ if (!HashStatus) {\r
+ goto Finish;\r
+ }\r
+ }\r
\r
- //\r
- // 8. Skip over the Cert Directory. (It is sizeof(IMAGE_DATA_DIRECTORY) bytes.)\r
- // 9. Hash everything from the end of the Cert Directory to the end of image header.\r
- //\r
- if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
//\r
- // Use PE32 offset\r
- //\r
- HashBase = (UINT8 *) &Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY + 1];\r
- HashSize = Hdr.Pe32->OptionalHeader.SizeOfHeaders -\r
- (UINTN) ((UINT8 *)(&Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY + 1]) - (UINT8 *) (UINTN) ImageAddress);\r
- } else {\r
+ // 8. Skip over the Cert Directory. (It is sizeof(IMAGE_DATA_DIRECTORY) bytes.)\r
+ // 9. Hash everything from the end of the Cert Directory to the end of image header.\r
//\r
- // Use PE32+ offset\r
- //\r
- HashBase = (UINT8 *) &Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY + 1];\r
- HashSize = Hdr.Pe32Plus->OptionalHeader.SizeOfHeaders -\r
- (UINTN) ((UINT8 *)(&Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY + 1]) - (UINT8 *) (UINTN) ImageAddress);\r
+ if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // Use PE32 offset\r
+ //\r
+ HashBase = (UINT8 *) &Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY + 1];\r
+ HashSize = Hdr.Pe32->OptionalHeader.SizeOfHeaders - (UINTN) (HashBase - ImageAddress);\r
+ } else {\r
+ //\r
+ // Use PE32+ offset\r
+ //\r
+ HashBase = (UINT8 *) &Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY + 1];\r
+ HashSize = Hdr.Pe32Plus->OptionalHeader.SizeOfHeaders - (UINTN) (HashBase - ImageAddress);\r
+ }\r
+ \r
+ if (HashSize != 0) {\r
+ HashStatus = Sha1Update (Sha1Ctx, HashBase, HashSize);\r
+ if (!HashStatus) {\r
+ goto Finish;\r
+ }\r
+ }\r
}\r
- \r
- Sha1Update (Sha1Ctx, HashBase, HashSize);\r
\r
//\r
// 10. Set the SUM_OF_BYTES_HASHED to the size of the header\r
// header indicates how big the table should be. Do not include any\r
// IMAGE_SECTION_HEADERs in the table whose 'SizeOfRawData' field is zero.\r
//\r
- SectionHeader = (EFI_IMAGE_SECTION_HEADER *)AllocateZeroPool (sizeof (EFI_IMAGE_SECTION_HEADER) * Hdr.Pe32->FileHeader.NumberOfSections);\r
+ SectionHeader = (EFI_IMAGE_SECTION_HEADER *) AllocateZeroPool (sizeof (EFI_IMAGE_SECTION_HEADER) * Hdr.Pe32->FileHeader.NumberOfSections);\r
if (SectionHeader == NULL) {\r
Status = EFI_OUT_OF_RESOURCES;\r
goto Finish;\r
HashBase = (UINT8 *) (UINTN) ImageAddress + Section->PointerToRawData;\r
HashSize = (UINTN) Section->SizeOfRawData;\r
\r
- Sha1Update (Sha1Ctx, HashBase, HashSize);\r
+ HashStatus = Sha1Update (Sha1Ctx, HashBase, HashSize);\r
+ if (!HashStatus) {\r
+ goto Finish;\r
+ }\r
\r
SumOfBytesHashed += HashSize;\r
}\r
//\r
if (ImageSize > SumOfBytesHashed) {\r
HashBase = (UINT8 *) (UINTN) ImageAddress + SumOfBytesHashed;\r
- if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
- if (ImageSize - SumOfBytesHashed < Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size) {\r
- Status = EFI_INVALID_PARAMETER;\r
- goto Finish;\r
- }\r
- //\r
- // Use PE32 offset\r
- //\r
- HashSize = (UINTN)(ImageSize -\r
- Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size -\r
- SumOfBytesHashed);\r
+\r
+ if (NumberOfRvaAndSizes <= EFI_IMAGE_DIRECTORY_ENTRY_SECURITY) {\r
+ CertSize = 0;\r
} else {\r
- if (ImageSize - SumOfBytesHashed < Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size) {\r
- Status = EFI_INVALID_PARAMETER;\r
- goto Finish;\r
+ if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {\r
+ //\r
+ // Use PE32 offset.\r
+ //\r
+ CertSize = Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size;\r
+ } else {\r
+ //\r
+ // Use PE32+ offset.\r
+ //\r
+ CertSize = Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size;\r
}\r
- //\r
- // Use PE32+ offset\r
- //\r
- HashSize = (UINTN)(ImageSize -\r
- Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].Size -\r
- SumOfBytesHashed); \r
}\r
\r
- Sha1Update (Sha1Ctx, HashBase, HashSize);\r
+ if (ImageSize > CertSize + SumOfBytesHashed) {\r
+ HashSize = (UINTN) (ImageSize - CertSize - SumOfBytesHashed);\r
+\r
+ HashStatus = Sha1Update (Sha1Ctx, HashBase, HashSize);\r
+ if (!HashStatus) {\r
+ goto Finish;\r
+ }\r
+ } else if (ImageSize < CertSize + SumOfBytesHashed) {\r
+ goto Finish;\r
+ }\r
}\r
\r
//\r
// 17. Finalize the SHA hash.\r
//\r
- Sha1Final (Sha1Ctx, (UINT8 *)&TcgEvent->Digest);\r
+ HashStatus = Sha1Final (Sha1Ctx, (UINT8 *) &TcgEvent->Digest);\r
+ if (!HashStatus) {\r
+ goto Finish;\r
+ }\r
\r
//\r
// Log the PE data\r
projects / mirror_edk2.git / blobdiff