Appendix B - The ASN.1 Abstract Syntax Tree

This appendix includes details on the information carried by the ASN.1 Abstract Syntax Tree. This is the information carried around by the node parameters in the mapping backends. They therefore provide access to all that is necessary during the mapping process.

As seen in the listings of section 5.2, the functions acting on each APLC parameter take at least two arguments:

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The ASN.1 typename (as a simple string)

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The ASN.1 node in the ASN.1 Abstract Syntax Tree

The second one points to the node-specific information in the ASN.1 AST. This can be one of the following types, each one with its own, type-specific information: