64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
|
|
||
|
|
/*-
|
||
|
|
* Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
|
||
|
|
* Redistribution and modifications are permitted subject to BSD license.
|
||
|
|
*/
|
||
|
|
#ifndef ASN1_CONSTRAINTS_VALIDATOR_H
|
||
|
|
#define ASN1_CONSTRAINTS_VALIDATOR_H
|
||
|
|
|
||
|
|
#include <asn_system.h> /* Platform-dependent types */
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct asn_TYPE_descriptor_s; /* Forward declaration */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Validate the structure according to the ASN.1 constraints.
|
||
|
|
* If errbuf and errlen are given, they shall be pointing to the appropriate
|
||
|
|
* buffer space and its length before calling this function. Alternatively,
|
||
|
|
* they could be passed as NULL's. If constraints validation fails,
|
||
|
|
* errlen will contain the actual number of bytes taken from the errbuf
|
||
|
|
* to encode an error message (properly 0-terminated).
|
||
|
|
*
|
||
|
|
* RETURN VALUES:
|
||
|
|
* This function returns 0 in case all ASN.1 constraints are met
|
||
|
|
* and -1 if one or more constraints were failed.
|
||
|
|
*/
|
||
|
|
int asn_check_constraints(
|
||
|
|
const struct asn_TYPE_descriptor_s *type_descriptor,
|
||
|
|
const void *struct_ptr, /* Target language's structure */
|
||
|
|
char *errbuf, /* Returned error description */
|
||
|
|
size_t *errlen /* Length of the error description */
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Generic type for constraint checking callback,
|
||
|
|
* associated with every type descriptor.
|
||
|
|
*/
|
||
|
|
typedef int(asn_constr_check_f)(
|
||
|
|
const struct asn_TYPE_descriptor_s *type_descriptor, const void *struct_ptr,
|
||
|
|
asn_app_constraint_failed_f *optional_callback, /* Log the error */
|
||
|
|
void *optional_app_key /* Opaque key passed to a callback */
|
||
|
|
);
|
||
|
|
|
||
|
|
/*******************************
|
||
|
|
* INTERNALLY USEFUL FUNCTIONS *
|
||
|
|
*******************************/
|
||
|
|
|
||
|
|
asn_constr_check_f asn_generic_no_constraint; /* No constraint whatsoever */
|
||
|
|
asn_constr_check_f asn_generic_unknown_constraint; /* Not fully supported */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Invoke the callback with a complete error message.
|
||
|
|
*/
|
||
|
|
#define ASN__CTFAIL if(ctfailcb) ctfailcb
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* ASN1_CONSTRAINTS_VALIDATOR_H */
|