1/*
2 * Copyright (c) 2005-2007,2011-2012,2014 Apple Inc. All Rights Reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24
25/*
26 * libDER_config.h - platform dependent #defines and typedefs for libDER
27 *
28 */
29
30#ifndef	_LIB_DER_CONFIG_H_
31#define _LIB_DER_CONFIG_H_
32
33#include <stdint.h>
34#include <string.h>
35
36#ifdef __cplusplus
37extern "C" {
38#endif
39
40/*
41 * Basic data types: unsigned 8-bit integer, unsigned 32-bit integer
42 */
43typedef uint8_t DERByte;
44typedef uint16_t DERShort;
45typedef size_t DERSize;
46
47/*
48 * Use these #defines of you have memset, memmove, and memcmp; else
49 * write your own equivalents.
50 */
51
52#define DERMemset(ptr, c, len)		memset(ptr, c, len)
53#define DERMemmove(dst, src, len)	memmove(dst, src, len)
54#define DERMemcmp(b1, b2, len)		memcmp(b1, b2, len)
55
56
57/***
58 *** Compile time options to trim size of the library.
59 ***/
60
61/* enable general DER encode */
62#define DER_ENCODE_ENABLE		1
63
64/* enable general DER decode */
65#define DER_DECODE_ENABLE		1
66
67#ifndef DER_MULTIBYTE_TAGS
68/* enable multibyte tag support. */
69#define DER_MULTIBYTE_TAGS		1
70#endif
71
72#ifndef DER_TAG_SIZE
73/* Iff DER_MULTIBYTE_TAGS is 1 this is the sizeof(DERTag) in bytes. Note that
74   tags are still encoded and decoded from a minimally encoded DER
75   represantation.  This value determines how big each DERItemSpecs is, we
76   choose 2 since that makes DERItemSpecs 8 bytes wide.  */
77#define DER_TAG_SIZE            2
78#endif
79
80
81/* ---------------------- Do not edit below this line ---------------------- */
82
83/*
84 * Logical representation of a tag (the encoded representation is always in
85 * the minimal number of bytes). The top 3 bits encode class and method
86 * The remaining bits encode the tag value.  To obtain smaller DERItemSpecs
87 * sizes, choose the smallest type that fits your needs.  Most standard ASN.1
88 * usage only needs single byte tags, but ocasionally custom applications
89 * require a larger tag namespace.
90 */
91#if DER_MULTIBYTE_TAGS
92
93#if DER_TAG_SIZE == 1
94typedef uint8_t DERTag;
95#elif DER_TAG_SIZE == 2
96typedef uint16_t DERTag;
97#elif DER_TAG_SIZE == 4
98typedef uint32_t DERTag;
99#elif DER_TAG_SIZE == 8
100typedef uint64_t DERTag;
101#else
102#error DER_TAG_SIZE invalid
103#endif
104
105#else /* DER_MULTIBYTE_TAGS */
106typedef DERByte DERTag;
107#endif /* !DER_MULTIBYTE_TAGS */
108
109#ifdef __cplusplus
110}
111#endif
112
113#endif	/* _LIB_DER_CONFIG_H_ */
114