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Diffstat (limited to 'libasn1parser/asn1p_constr.h')
-rw-r--r-- | libasn1parser/asn1p_constr.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/libasn1parser/asn1p_constr.h b/libasn1parser/asn1p_constr.h new file mode 100644 index 00000000..19099b2f --- /dev/null +++ b/libasn1parser/asn1p_constr.h @@ -0,0 +1,79 @@ +/* + * Type constraints. + */ +#ifndef ASN1_PARSER_CONSTRAINT_H +#define ASN1_PARSER_CONSTRAINT_H + +typedef struct asn1p_constraint_s { + + enum asn1p_constraint_type_e { + ACT_INVALID, /* for assertions */ + /* + * Constraint elements. + */ + ACT_EL_VALUE, /* 123, "A", T (elementary value) */ + ACT_EL_RANGE, /* 1..2 (elementary range) */ + ACT_EL_LLRANGE, /* 1<..2 (elementary range) */ + ACT_EL_RLRANGE, /* 1..<2 (elementary range) */ + ACT_EL_ULRANGE, /* 1<..<2 (elementary range) */ + ACT_EL_EXT, /* ... (extensibility mark) */ + /* + * Constraint types. + */ + ACT_CT_SIZE, /* SIZE constraint type */ + ACT_CT_FROM, /* FROM constraint type */ + ACT_CT_WCOMP, /* WITH COMPONENT */ + ACT_CT_WCOMPS, /* WITH COMPONENTS */ + /* + * Arrays of constraints. + */ + ACT_CA_SET, /* A set of constraints: (c1)(c2) */ + ACT_CA_CRC, /* Comp. relation c-t: ({a})({@b}) */ + ACT_CA_CSV, /* Comma-separated constraints array */ + ACT_CA_UNI, /* UNION (|) */ + ACT_CA_INT, /* INTERSECTION (^) */ + ACT_CA_EXC, /* EXCEPT */ + } type; + + enum asn1p_constr_pres_e { + ACPRES_DEFAULT, + ACPRES_PRESENT, + ACPRES_ABSENT, + ACPRES_OPTIONAL, + } presence; + + /* + * A single values. + */ + asn1p_value_t *value; + asn1p_value_t *range_start; + asn1p_value_t *range_stop; + + /* + * A collection of constraint elements. + */ + struct asn1p_constraint_s **elements; + int el_count; /* Number of meaningful elements */ + int el_size; /* Size of the allocated (elements) */ + + int _lineno; /* Position in a source file */ +} asn1p_constraint_t; + + +/* + * Constructors and a recursive destructor. + */ +asn1p_constraint_t *asn1p_constraint_new(int _lineno); +void asn1p_constraint_free(asn1p_constraint_t *); + +/* + * Clone the constraint and all its children. + */ +asn1p_constraint_t *asn1p_constraint_clone(asn1p_constraint_t *source_to_clone); + +/* + * Insert additional element into the element array of a (to) constraint. + */ +int asn1p_constraint_insert(asn1p_constraint_t *into, asn1p_constraint_t *what); + +#endif /* ASN1_PARSER_CONSTRAINT_H */ |