Moving in e2sim originally from it/test/simulators
[sim/e2-interface.git] / e2sim / ASN1c / constraints.h
1 /*****************************************************************************
2 #                                                                            *
3 # Copyright 2019 AT&T Intellectual Property                                  *
4 #                                                                            *
5 # Licensed under the Apache License, Version 2.0 (the "License");            *
6 # you may not use this file except in compliance with the License.           *
7 # You may obtain a copy of the License at                                    *
8 #                                                                            *
9 #      http://www.apache.org/licenses/LICENSE-2.0                            *
10 #                                                                            *
11 # Unless required by applicable law or agreed to in writing, software        *
12 # distributed under the License is distributed on an "AS IS" BASIS,          *
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   *
14 # See the License for the specific language governing permissions and        *
15 # limitations under the License.                                             *
16 #                                                                            *
17 ******************************************************************************/
18
19 /*-
20  * Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
21  * Redistribution and modifications are permitted subject to BSD license.
22  */
23 #ifndef ASN1_CONSTRAINTS_VALIDATOR_H
24 #define ASN1_CONSTRAINTS_VALIDATOR_H
25
26 #include <asn_system.h>         /* Platform-dependent types */
27
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31
32 struct asn_TYPE_descriptor_s;           /* Forward declaration */
33
34 /*
35  * Validate the structure according to the ASN.1 constraints.
36  * If errbuf and errlen are given, they shall be pointing to the appropriate
37  * buffer space and its length before calling this function. Alternatively,
38  * they could be passed as NULL's. If constraints validation fails,
39  * errlen will contain the actual number of bytes taken from the errbuf
40  * to encode an error message (properly 0-terminated).
41  * 
42  * RETURN VALUES:
43  * This function returns 0 in case all ASN.1 constraints are met
44  * and -1 if one or more constraints were failed.
45  */
46 int asn_check_constraints(
47     const struct asn_TYPE_descriptor_s *type_descriptor,
48     const void *struct_ptr, /* Target language's structure */
49     char *errbuf,           /* Returned error description */
50     size_t *errlen          /* Length of the error description */
51 );
52
53
54 /*
55  * Generic type for constraint checking callback,
56  * associated with every type descriptor.
57  */
58 typedef int(asn_constr_check_f)(
59     const struct asn_TYPE_descriptor_s *type_descriptor, const void *struct_ptr,
60     asn_app_constraint_failed_f *optional_callback, /* Log the error */
61     void *optional_app_key /* Opaque key passed to a callback */
62 );
63
64 /*******************************
65  * INTERNALLY USEFUL FUNCTIONS *
66  *******************************/
67
68 asn_constr_check_f asn_generic_no_constraint;   /* No constraint whatsoever */
69 asn_constr_check_f asn_generic_unknown_constraint; /* Not fully supported */
70
71 /*
72  * Invoke the callback with a complete error message.
73  */
74 #define ASN__CTFAIL     if(ctfailcb) ctfailcb
75
76 #ifdef __cplusplus
77 }
78 #endif
79
80 #endif  /* ASN1_CONSTRAINTS_VALIDATOR_H */