[Css-csts] Framework ASN.1

[Ray, Timothy J. (GSFC-5830)]

Hi Yves,

When implementing the Forward CLTU Service, all incoming messages were decoded into a single top-level C structure (the OSS tool called it 'CltuVersion1Pdu').

In trying to work with the Framework ASN.1, I can't find an analogous single top-level structure (there are multiple top-level structures - e.g. AssociationPdu, InformationQueryPdu, ThrowEventPdu, DataProcessingPdu, etc).     I suspect that the answer is "each service must define additional ASN.1 (that will provide this top-level structure)".  If so, we will have to define service-level ASN.1 for our inter-operability testing (as far as I know, this hasn't been done yet).

Best regards,
Tim
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