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#ifndef ASN1FIX_CRANGE_H
#define ASN1FIX_CRANGE_H
typedef struct asn1cnst_edge_s {
enum asn1cnst_range_edge {
ARE_MIN,
ARE_MAX,
ARE_VALUE,
} type;
int lineno; /* Line where the corresponding token was found */
asn1c_integer_t value; /* Value when type is ARE_VALUE */
} asn1cnst_edge_t;
typedef struct asn1cnst_range_s {
asn1cnst_edge_t left; /* MIN from (MIN..10) */
asn1cnst_edge_t right; /* 10 from (MIN..10) */
enum asn1cnst_range_narrowing {
/* Sorted from softest to strictest narrowing */
NOT_NARROW,
NARROW_DOUBLE64,
NARROW_FLOAT32,
} narrowing; /* Constrained to a known narrow type */
/* If range is split in parts, these are the parts */
struct asn1cnst_range_s **elements;
int el_count;
int el_size;
int empty_constraint; /* If yes, too bad. */
int extensible; /* Extension marker (...) is in effect. */
int incompatible; /* Constraint incompatible with argument */
int not_OER_visible; /* Contains not OER-visible components */
int not_PER_visible; /* Contains not PER-visible components */
} asn1cnst_range_t;
/*
* Compute the constraint range with variable visibility restrictions.
*
* (expr_type) must have the type of the top-level parent ASN.1 type.
* (required_type) must be one of ACT_EL_RANGE, ACT_CT_SIZE or ACT_CT_FROM.
* (minmax) and (expectation_met) should be 0.
* ERRORS:
* EINVAL: Mandatory arguments missing.
* ENOMEM: Memory allocation failure.
* EPERM: Invalid constraint reference.
*/
enum cpr_flags {
CPR_noflags = 0x00,
CPR_strict_OER_visibility = 0x01,
CPR_strict_PER_visibility = 0x02,
CPR_simulate_fbless_SIZE = 0x04,
};
asn1cnst_range_t *asn1constraint_compute_OER_range(const char *dbg_name,
asn1p_expr_type_e expr_type,
const asn1p_constraint_t *ct,
enum asn1p_constraint_type_e required_type,
const asn1cnst_range_t *minmax,
int *expectation_met,
enum cpr_flags);
asn1cnst_range_t *asn1constraint_compute_PER_range(const char *dbg_name,
asn1p_expr_type_e expr_type,
const asn1p_constraint_t *ct,
enum asn1p_constraint_type_e required_type,
const asn1cnst_range_t *minmax,
int *expectation_met,
enum cpr_flags);
/* Base implementation */
asn1cnst_range_t *asn1constraint_compute_constraint_range(const char *dbg_name,
asn1p_expr_type_e expr_type,
const asn1p_constraint_t *ct,
enum asn1p_constraint_type_e required_type,
const asn1cnst_range_t *minmax,
int *expectation_met,
enum cpr_flags);
void asn1constraint_range_free(asn1cnst_range_t *);
/*
* Check that a specific constraint is compatible
* with the given expression type.
*/
int asn1constraint_compatible(asn1p_expr_type_e expr_type,
enum asn1p_constraint_type_e constr_type, int fbless_SIZE);
/*
* Fetch a default alphabet for this type.
*/
asn1cnst_range_t *asn1constraint_default_alphabet(asn1p_expr_type_e expr_type);
#endif /* ASN1FIX_CRANGE_H */
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