| Harry Tran | a1b2b29 | 2019-10-28 11:07:23 -0400 | [diff] [blame^] | 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 */ |