blob: 6f47fefabd4930501bee61ee2a27aa57c5cf82b4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
/**
* @file parser.h
*
* @brief Generic parser class used to parse IKEv2-Header and Payload
*
*/
/*
* Copyright (C) 2005 Jan Hutter, Martin Willi
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#ifndef PARSER_H_
#define PARSER_H_
#include <types.h>
#include <encoding/payloads/encodings.h>
#include <encoding/payloads/payload.h>
typedef struct parser_t parser_t;
/**
* @brief A parser_t object which parses payloads
*
* A parser is used for parsing one chunk of data. Multiple
* payloads can be parsed out of the chunk using parse_payload.
* The parser remains the state until destroyed.
*/
struct parser_t {
/**
* @brief parses the next payload
*
* @warning caller is responsible for freeing allocated payload
*
* Rules for parsing are described in the payload definition.
*
* @param this parser Object
* @param payload_type payload type to parse
* @param[out] payload pointer where parsed payload was allocated
* @return
* - SUCCESSFUL if succeeded,
* - NOT_SUPPORTED if payload_type is not supported
* - OUT_OF_RES if out of ressources
* - PARSE_ERROR if corrupted/invalid data found
*/
status_t (*parse_payload) (parser_t *this, payload_type_t payload_type, payload_t **payload);
/**
* @brief Resets the current parser context
*
* @param parser parser object
* @return
* - SUCCESSFUL in any case
*/
status_t (*reset_context) (parser_t *this);
/**
* @brief Destroys a parser object
*
* @param parser parser object
* @return
* - SUCCESSFUL in any case
*/
status_t (*destroy) (parser_t *this);
};
/**
* @brief Constructor to create a parser
*
* @param data chunk of data to parse with this parser object
* @return the parser, or NULL if failed
*
*/
parser_t *parser_create(chunk_t data);
#endif /*PARSER_H_*/
|
