Tobias Brunner
fac3bfa5cd
I changed only the includes needed to fix the build on Android, which has an utils.h system header file, but we should probably change all the local includes in libstrongswan to "" and relative paths.
120 lines
2.7 KiB
C
120 lines
2.7 KiB
C
/*
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* Copyright (C) 2006 Martin Will
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* Copyright (C) 2000-2008 Andreas Steffen
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*
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup asn1_parser asn1_parser
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* @{ @ingroup asn1
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*/
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#ifndef ASN1_PARSER_H_
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#define ASN1_PARSER_H_
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#include <stdarg.h>
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#include <library.h>
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#include "asn1.h"
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/**
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* Definition of ASN.1 flags
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*/
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#define ASN1_NONE 0x00
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#define ASN1_DEF 0x01
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#define ASN1_OPT 0x02
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#define ASN1_LOOP 0x04
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#define ASN1_END 0x08
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#define ASN1_OBJ 0x10
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#define ASN1_BODY 0x20
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#define ASN1_RAW 0x40
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#define ASN1_EXIT 0x80
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typedef struct asn1Object_t asn1Object_t;
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/**
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* Syntax definition of an ASN.1 object
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*/
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struct asn1Object_t{
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u_int level;
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const u_char *name;
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asn1_t type;
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u_char flags;
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};
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typedef struct asn1_parser_t asn1_parser_t;
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/**
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* Public interface of an ASN.1 parser
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*/
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struct asn1_parser_t {
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/**
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* Parse the next ASN.1 object in the hierarchy and return it
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*
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* @param objectID current line in the object syntax definition
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* @param object current object
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* @return - FALSE if end of object syntax definition was reached
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* or a parsing error occurred
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* - TRUE otherwise
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*/
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bool (*iterate)(asn1_parser_t *this, int *objectID, chunk_t *object);
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/**
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* Get the current parsing level
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*
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* @return current level
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*/
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u_int (*get_level)(asn1_parser_t *this);
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/**
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* Set the top-most level
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*
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* @param level top-most level
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*/
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void (*set_top_level)(asn1_parser_t *this, u_int level0);
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/**
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* Set implicit and private flags
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*
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* @param implicit top-most type of object is implicit
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* @param private object data is private (use debug level 4)
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*/
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void (*set_flags)(asn1_parser_t *this, bool implicit, bool private);
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/**
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* Show final parsing status
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*
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* @return TRUE if parsing was successful, FALSE otherwise
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*/
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bool (*success)(asn1_parser_t *this);
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/**
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* Destroy the ASN.1 parser
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*/
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void (*destroy)(asn1_parser_t *this);
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};
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/**
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* Create an ASN.1 parser
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*
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* @param objects syntax definition of the ASN.1 object to be parsed
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* @param blob ASN.1 coded binary blob
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* @return ASN.1 context
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*/
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asn1_parser_t* asn1_parser_create(asn1Object_t const *objects, chunk_t blob);
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#endif /** ASN1_PARSER_H_ @}*/
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