public static AbstractBlob CreateFromStream(ReadingContext SR)
{
// Read the magic and length (common to all blobs)
UInt32 Magic = SR.ReadUInt32();
UInt32 Length = SR.ReadUInt32();
AbstractBlob Result;
switch (Magic)
{
case CSMAGIC_CODEDIRECTORY:
Result = new CodeDirectoryBlob();
break;
case CSMAGIC_CODEDIR_SIGNATURE:
Result = new CodeDirectorySignatureBlob();
break;
case CSMAGIC_ENTITLEMENTS:
Result = new EntitlementsBlob();
break;
case CSMAGIC_REQUIREMENTS_TABLE:
Result = new RequirementsBlob();
break;
case CSMAGIC_EMBEDDED_SIGNATURE:
Result = new CodeSigningTableBlob();
break;
case CSMAGIC_REQUIREMENT:
default:
Result = new OpaqueBlob();
break;
}
Result.MyMagic = Magic;
Result.UnpackageData(SR, Length);
if (Config.bCodeSignVerbose)
{
Console.WriteLine("[Read blob with magic 0x{0:X} and length={1}]\n{2}", Magic, Length, Result.ToString());
}
return Result;
}
protected override void UnpackageData(ReadingContext SR, int CommandSize)
{
base.UnpackageData(SR, CommandSize);
SR.PushPositionAndJump(BlobFileOffset);
SR.bStreamLittleEndian = false;
long SavedPosition = SR.Position;
// Parse the blob
Payload = AbstractBlob.CreateFromStream(SR) as CodeSigningTableBlob;
if (Config.bCodeSignVerbose)
{
Console.WriteLine(Payload.ToString());
}
//SR.VerifyStreamPosition(SavedPosition, BlobFileSize);
SR.PopPosition();
SR.bStreamLittleEndian = true;
}
public static CodeSigningTableBlob Create()
{
CodeSigningTableBlob Blob = new CodeSigningTableBlob();
return Blob;
}
