-- .../asn1specs/tbl.asn1 -- -- TBL types describe ASN.1 data structures. -- These can be used in generic, interpretive encoders/decoders. -- Interpretive decoders are typically slower, but don't eat memory -- with type-specific encoding and decoding code. -- The tbl types can also be sent over the network -- and allow dynamic re-configuration of encoders/decoders. -- -- To understand how this type table structure is used -- look in: -- 1. .../compiler/core/gen-tbls.c -- this will show you how various things are generated -- from the big parse tree (asn1module.asn1). -- Pay particular attention to the typeDefId use -- -- 2. look in .../c-lib/makefile for an example of how you can -- modify the tbl.h file generated from this module to suit -- your own needs. -- -- 3. look in .../tbl-tools/ptbl/pasn1.c to see how the -- TBL data struct relates to the original ASN.1 -- -- -- -- Mike Sample, April 11, 1992 -- Mods MS Feb 7/93 -- -- $Header: /cvs/root/Security/SecuritySNACCRuntime/asn1specs/Attic/tbl.asn1,v 1.1.1.1 2001/05/18 23:14:05 mb Exp $ -- $Log: tbl.asn1,v $ -- Revision 1.1.1.1 2001/05/18 23:14:05 mb -- Move from private repository to open source repository -- -- Revision 1.1.1.1 1999/03/16 18:05:56 aram -- Originals from SMIME Free Library. -- -- Revision 1.5 1997/06/19 09:17:13 wan -- Added isPdu flag to tables. Added value range checks during parsing. -- -- Revision 1.4 1997/05/07 15:18:33 wan -- Added (limited) size constraints, bitstring and enumeration names to tables -- -- Revision 1.3 1995/07/25 19:56:00 rj -- introductory comments adjusted to match changed file names. -- -- changed `_' to `-' in file names. -- -- Revision 1.2 1994/08/28 09:54:18 rj -- comment leader fixed. -- -- Revision 1.1 1994/08/28 09:51:14 rj -- first check-in. TBL DEFINITIONS ::= BEGIN -- imports nothing -- exports nothing TBL ::= --snacc isPdu:"TRUE" -- SEQUENCE { totalNumModules INTEGER, -- these totals can help allocation totalNumTypeDefs INTEGER, -- when decoding (ie use arrays) totalNumTypes INTEGER, totalNumTags INTEGER, totalNumStrings INTEGER, totalLenStrings INTEGER, modules SEQUENCE OF TBLModule } TBLModule ::= SEQUENCE { name [0] IMPLICIT PrintableString, id [1] IMPLICIT OBJECT IDENTIFIER OPTIONAL, isUseful [2] IMPLICIT BOOLEAN, -- true if useful types module typeDefs [3] IMPLICIT SEQUENCE OF TBLTypeDef } -- -- The typedefId is just an integer that uniquely identifies -- each TBLTypeDef (type references use these as "pointers"). -- The typeDefId's in each module will have consecutive type ids. -- The first typedef in a module will have the lowest Id and the -- last typedef will have the highest. Thus if the first typedef -- in a module has the id of 12 and the last typedef in that module -- has the id of 27, the module contains the typdefs in the range -- 12..27 (inclusive). This can be used to re-compute the -- IMPORT information for modules in a type table. -- -- (The LoadTBL routine hides this integer/ptr crap from the user -- by adding real pointers to the tbl.h data structures where useful. -- When loading, the typeDefIds are converted into these real ptrs) -- TBLTypeDef ::= SEQUENCE { typeDefId TBLTypeDefId, typeName PrintableString, -- OPTIONAL, I have forgotten why this is opt! -- I can see no good reason for it type TBLType, isPdu NULL OPTIONAL } TBLType ::= SEQUENCE { typeId [0] IMPLICIT TBLTypeId, optional [1] IMPLICIT BOOLEAN, tagList [2] IMPLICIT SEQUENCE OF TBLTag OPTIONAL, content [3] TBLTypeContent, fieldName [4] IMPLICIT PrintableString OPTIONAL, constraint[5] IMPLICIT TBLRange OPTIONAL, values [6] IMPLICIT TBLNamedNumberList OPTIONAL } TBLRange ::= SEQUENCE { from [0] IMPLICIT INTEGER, to [1] IMPLICIT INTEGER } TBLNamedNumberList ::= SEQUENCE OF TBLNamedNumber TBLNamedNumber ::= SEQUENCE { name [0] IMPLICIT PrintableString, value [1] IMPLICIT INTEGER } TBLTypeContent ::= CHOICE { primType [0] IMPLICIT NULL, elmts [1] IMPLICIT SEQUENCE OF TBLType, typeRef [2] IMPLICIT TBLTypeRef } TBLTypeRef ::= SEQUENCE { typeDef TBLTypeDefId, implicit BOOLEAN } TBLTypeId ::= ENUMERATED { tbl-boolean (0), tbl-integer (1), tbl-bitstring (2), tbl-octetstring (3), tbl-null (4), tbl-oid (5), tbl-real (6), tbl-enumerated (7), tbl-sequence (8), tbl-set (9), tbl-sequenceof (10), tbl-setof (11), tbl-choice (12), tbl-typeref (13) } TBLTypeDefId ::= INTEGER TBLTag ::= SEQUENCE { tclass TBLTagClass, code INTEGER (0..MAX) } TBLTagClass ::= ENUMERATED { universal (0), application (1), context (2), private (3) } END