- Checksum = CalculateSum8 ((UINT8 *) FileHeader, FileLength);
- Checksum = (UINT8) (Checksum - FileHeader->State);
+ Checksum = CalculateSum8 ((UINT8 *) (FileHeader + 1), FileLength - sizeof (EFI_FFS_FILE_HEADER));
+ Checksum = Checksum + FileHeader->IntegrityCheck.Checksum.File;
if (Checksum != 0) {
Error (NULL, 0, 0003, "error parsing FFS file", "FFS file with Guid %s has invalid file checksum", GuidBuffer);
return EFI_ABORTED;
}
} else {
if (FileHeader->IntegrityCheck.Checksum.File != FFS_FIXED_CHECKSUM) {
if (Checksum != 0) {
Error (NULL, 0, 0003, "error parsing FFS file", "FFS file with Guid %s has invalid file checksum", GuidBuffer);
return EFI_ABORTED;
}
} else {
if (FileHeader->IntegrityCheck.Checksum.File != FFS_FIXED_CHECKSUM) {
- Error (NULL, 0, 0003, "error parsing FFS file", "FFS file with Guid %s has invalid header checksum -- not set to fixed value of 0x5A", GuidBuffer);
+ Error (NULL, 0, 0003, "error parsing FFS file", "FFS file with Guid %s has invalid header checksum -- not set to fixed value of 0xAA", GuidBuffer);