+++ /dev/null
-/*
- * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
- * Redistribution and modifications are permitted subject to BSD license.
- */
-/*
- * This file contains the declaration structure called "ASN.1 Type Definition",
- * which holds all information necessary for encoding and decoding routines.
- * This structure even contains pointer to these encoding and decoding routines
- * for each defined ASN.1 type.
- */
-#ifndef _CONSTR_TYPE_H_
-#define _CONSTR_TYPE_H_
-
-#include <ber_tlv_length.h>
-#include <ber_tlv_tag.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-struct asn_TYPE_descriptor_s; /* Forward declaration */
-struct asn_TYPE_member_s; /* Forward declaration */
-
-/*
- * This type provides the context information for various ASN.1 routines,
- * primarily ones doing decoding. A member _asn_ctx of this type must be
- * included into certain target language's structures, such as compound types.
- */
-typedef struct asn_struct_ctx_s {
- short phase; /* Decoding phase */
- short step; /* Elementary step of a phase */
- int context; /* Other context information */
- void *ptr; /* Decoder-specific stuff (stack elements) */
- ber_tlv_len_t left; /* Number of bytes left, -1 for indefinite */
-} asn_struct_ctx_t;
-
-#include <ber_decoder.h> /* Basic Encoding Rules decoder */
-#include <der_encoder.h> /* Distinguished Encoding Rules encoder */
-#include <xer_decoder.h> /* Decoder of XER (XML, text) */
-#include <xer_encoder.h> /* Encoder into XER (XML, text) */
-#include <per_decoder.h> /* Packet Encoding Rules decoder */
-#include <per_encoder.h> /* Packet Encoding Rules encoder */
-#include <constraints.h> /* Subtype constraints support */
-#include <asn_random_fill.h> /* Random structures support */
-
-#ifdef ASN_DISABLE_OER_SUPPORT
-typedef void (oer_type_decoder_f)(void);
-typedef void (oer_type_encoder_f)(void);
-typedef void asn_oer_constraints_t;
-#else
-#include <oer_decoder.h> /* Octet Encoding Rules encoder */
-#include <oer_encoder.h> /* Octet Encoding Rules encoder */
-#endif
-
-/*
- * Free the structure according to its specification.
- * Use one of ASN_STRUCT_{FREE,RESET,CONTENTS_ONLY} macros instead.
- * Do not use directly.
- */
-enum asn_struct_free_method {
- ASFM_FREE_EVERYTHING, /* free(struct_ptr) and underlying members */
- ASFM_FREE_UNDERLYING, /* free underlying members */
- ASFM_FREE_UNDERLYING_AND_RESET /* FREE_UNDERLYING + memset(0) */
-};
-typedef void (asn_struct_free_f)(
- const struct asn_TYPE_descriptor_s *type_descriptor,
- void *struct_ptr, enum asn_struct_free_method);
-
-/*
- * Free the structure including freeing the memory pointed to by ptr itself.
- */
-#define ASN_STRUCT_FREE(asn_DEF, ptr) \
- (asn_DEF).op->free_struct(&(asn_DEF), (ptr), ASFM_FREE_EVERYTHING)
-
-/*
- * Free the memory used by the members of the structure without freeing the
- * the structure pointer itself.
- * ZERO-OUT the structure to the safe clean state.
- * (Retaining the pointer may be useful in case the structure is allocated
- * statically or arranged on the stack, yet its elements are dynamic.)
- */
-#define ASN_STRUCT_RESET(asn_DEF, ptr) \
- (asn_DEF).op->free_struct(&(asn_DEF), (ptr), ASFM_FREE_UNDERLYING_AND_RESET)
-
-/*
- * Free memory used by the members of the structure without freeing
- * the structure pointer itself.
- * (Retaining the pointer may be useful in case the structure is allocated
- * statically or arranged on the stack, yet its elements are dynamic.)
- * AVOID using it in the application code;
- * Use a safer ASN_STRUCT_RESET() instead.
- */
-#define ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF, ptr) \
- (asn_DEF).op->free_struct(&(asn_DEF), (ptr), ASFM_FREE_UNDERLYING)
-
-/*
- * Print the structure according to its specification.
- */
-typedef int(asn_struct_print_f)(
- const struct asn_TYPE_descriptor_s *type_descriptor,
- const void *struct_ptr,
- int level, /* Indentation level */
- asn_app_consume_bytes_f *callback, void *app_key);
-
-/*
- * Compare two structs between each other.
- * Returns <0 if struct_A is "smaller" than struct_B, >0 if "greater",
- * and =0 if "equal to", for some type-specific, stable definition of
- * "smaller", "greater" and "equal to".
- */
-typedef int (asn_struct_compare_f)(
- const struct asn_TYPE_descriptor_s *type_descriptor,
- const void *struct_A,
- const void *struct_B);
-
-/*
- * Return the outmost tag of the type.
- * If the type is untagged CHOICE, the dynamic operation is performed.
- * NOTE: This function pointer type is only useful internally.
- * Do not use it in your application.
- */
-typedef ber_tlv_tag_t (asn_outmost_tag_f)(
- const struct asn_TYPE_descriptor_s *type_descriptor,
- const void *struct_ptr, int tag_mode, ber_tlv_tag_t tag);
-/* The instance of the above function type; used internally. */
-asn_outmost_tag_f asn_TYPE_outmost_tag;
-
-/*
- * Fetch the desired type of the Open Type based on the
- * Information Object Set driven constraints.
- */
-typedef struct asn_type_selector_result_s {
- const struct asn_TYPE_descriptor_s *type_descriptor; /* Type encoded. */
- unsigned presence_index; /* Associated choice variant. */
-} asn_type_selector_result_t;
-typedef asn_type_selector_result_t(asn_type_selector_f)(
- const struct asn_TYPE_descriptor_s *parent_type_descriptor,
- const void *parent_structure_ptr);
-
-/*
- * Generalized functions for dealing with the speciic type.
- * May be directly invoked by applications.
- */
-typedef struct asn_TYPE_operation_s {
- asn_struct_free_f *free_struct; /* Free the structure */
- asn_struct_print_f *print_struct; /* Human readable output */
- asn_struct_compare_f *compare_struct; /* Compare two structures */
- ber_type_decoder_f *ber_decoder; /* Generic BER decoder */
- der_type_encoder_f *der_encoder; /* Canonical DER encoder */
- xer_type_decoder_f *xer_decoder; /* Generic XER decoder */
- xer_type_encoder_f *xer_encoder; /* [Canonical] XER encoder */
- oer_type_decoder_f *oer_decoder; /* Generic OER decoder */
- oer_type_encoder_f *oer_encoder; /* Canonical OER encoder */
- per_type_decoder_f *uper_decoder; /* Unaligned PER decoder */
- per_type_encoder_f *uper_encoder; /* Unaligned PER encoder */
- per_type_decoder_f *aper_decoder; /* Aligned PER decoder */
- per_type_encoder_f *aper_encoder; /* Aligned PER encoder */
- asn_random_fill_f *random_fill; /* Initialize with a random value */
- asn_outmost_tag_f *outmost_tag; /* <optional, internal> */
-} asn_TYPE_operation_t;
-
-/*
- * A constraints tuple specifying both the OER and PER constraints.
- */
-typedef struct asn_encoding_constraints_s {
- const struct asn_oer_constraints_s *oer_constraints;
- const struct asn_per_constraints_s *per_constraints;
- asn_constr_check_f *general_constraints;
-} asn_encoding_constraints_t;
-
-/*
- * The definitive description of the destination language's structure.
- */
-typedef struct asn_TYPE_descriptor_s {
- const char *name; /* A name of the ASN.1 type. "" in some cases. */
- const char *xml_tag; /* Name used in XML tag */
-
- /*
- * Generalized functions for dealing with the specific type.
- * May be directly invoked by applications.
- */
- asn_TYPE_operation_t *op;
-
- /***********************************************************************
- * Internally useful members. Not to be used by applications directly. *
- **********************************************************************/
-
- /*
- * Tags that are expected to occur.
- */
- const ber_tlv_tag_t *tags; /* Effective tags sequence for this type */
- unsigned tags_count; /* Number of tags which are expected */
- const ber_tlv_tag_t *all_tags; /* Every tag for BER/containment */
- unsigned all_tags_count; /* Number of tags */
-
- /* OER, PER, and general constraints */
- asn_encoding_constraints_t encoding_constraints;
-
- /*
- * An ASN.1 production type members (members of SEQUENCE, SET, CHOICE).
- */
- struct asn_TYPE_member_s *elements;
- unsigned elements_count;
-
- /*
- * Additional information describing the type, used by appropriate
- * functions above.
- */
- const void *specifics;
-} asn_TYPE_descriptor_t;
-
-/*
- * This type describes an element of the constructed type,
- * i.e. SEQUENCE, SET, CHOICE, etc.
- */
- enum asn_TYPE_flags_e {
- ATF_NOFLAGS,
- ATF_POINTER = 0x01, /* Represented by the pointer */
- ATF_OPEN_TYPE = 0x02, /* Open Type */
- ATF_ANY_TYPE = 0x04 /* ANY type (deprecated!) */
- };
-typedef struct asn_TYPE_member_s {
- enum asn_TYPE_flags_e flags; /* Element's presentation flags */
- unsigned optional; /* Following optional members, including current */
- unsigned memb_offset; /* Offset of the element */
- ber_tlv_tag_t tag; /* Outmost (most immediate) tag */
- int tag_mode; /* IMPLICIT/no/EXPLICIT tag at current level */
- asn_TYPE_descriptor_t *type; /* Member type descriptor */
- asn_type_selector_f *type_selector; /* IoS runtime type selector */
- asn_encoding_constraints_t encoding_constraints;
- int (*default_value_cmp)(const void *sptr); /* Compare DEFAULT <value> */
- int (*default_value_set)(void **sptr); /* Set DEFAULT <value> */
- const char *name; /* ASN.1 identifier of the element */
-} asn_TYPE_member_t;
-
-/*
- * BER tag to element number mapping.
- */
-typedef struct asn_TYPE_tag2member_s {
- ber_tlv_tag_t el_tag; /* Outmost tag of the member */
- unsigned el_no; /* Index of the associated member, base 0 */
- int toff_first; /* First occurence of the el_tag, relative */
- int toff_last; /* Last occurence of the el_tag, relative */
-} asn_TYPE_tag2member_t;
-
-/*
- * This function prints out the contents of the target language's structure
- * (struct_ptr) into the file pointer (stream) in human readable form.
- * RETURN VALUES:
- * 0: The structure is printed.
- * -1: Problem dumping the structure.
- * (See also xer_fprint() in xer_encoder.h)
- */
-int asn_fprint(FILE *stream, /* Destination stream descriptor */
- const asn_TYPE_descriptor_t *td, /* ASN.1 type descriptor */
- const void *struct_ptr); /* Structure to be printed */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _CONSTR_TYPE_H_ */
Code Review / sim / e2-interface.git / blobdiff