| 1 | /*
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| 2 | * Copyright (c) 1997 - 2006 Kungliga Tekniska Högskolan
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| 3 | * (Royal Institute of Technology, Stockholm, Sweden).
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Portions Copyright (c) 2009 Apple Inc. All rights reserved.
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| 7 | *
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| 8 | * Redistribution and use in source and binary forms, with or without
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| 9 | * modification, are permitted provided that the following conditions
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| 10 | * are met:
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| 11 | *
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| 12 | * 1. Redistributions of source code must retain the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer.
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| 14 | *
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright
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| 16 | * notice, this list of conditions and the following disclaimer in the
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| 17 | * documentation and/or other materials provided with the distribution.
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| 18 | *
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| 19 | * 3. Neither the name of the Institute nor the names of its contributors
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| 20 | * may be used to endorse or promote products derived from this software
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| 21 | * without specific prior written permission.
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| 22 | *
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| 23 | * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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| 24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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| 27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 33 | * SUCH DAMAGE.
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| 34 | */
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| 35 |
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| 36 | /* asn1 templates */
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| 37 |
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| 38 | #ifndef __TEMPLATE_H__
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| 39 | #define __TEMPLATE_H__
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| 40 |
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| 41 | /* tag:
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| 42 | * 0..20 tag
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| 43 | * 21 type
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| 44 | * 22..23 class
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| 45 | * 24..27 flags
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| 46 | * 28..31 op
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| 47 | */
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| 48 |
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| 49 | /* parse:
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| 50 | * 0..11 type
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| 51 | * 12..23 unused
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| 52 | * 24..27 flags
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| 53 | * 28..31 op
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| 54 | */
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| 55 |
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| 56 | #define A1_OP_MASK (0xf0000000)
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| 57 | #define A1_OP_TYPE (0x10000000)
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| 58 | #define A1_OP_TYPE_EXTERN (0x20000000)
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| 59 | #define A1_OP_TAG (0x30000000)
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| 60 | #define A1_OP_PARSE (0x40000000)
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| 61 | #define A1_OP_SEQOF (0x50000000)
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| 62 | #define A1_OP_SETOF (0x60000000)
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| 63 | #define A1_OP_BMEMBER (0x70000000)
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| 64 | #define A1_OP_CHOICE (0x80000000)
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| 65 |
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| 66 | #define A1_FLAG_MASK (0x0f000000)
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| 67 | #define A1_FLAG_OPTIONAL (0x01000000)
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| 68 | #define A1_FLAG_IMPLICIT (0x02000000)
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| 69 |
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| 70 | #define A1_TAG_T(CLASS,TYPE,TAG) ((A1_OP_TAG) | (((CLASS) << 22) | ((TYPE) << 21) | (TAG)))
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| 71 | #define A1_TAG_CLASS(x) (((x) >> 22) & 0x3)
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| 72 | #define A1_TAG_TYPE(x) (((x) >> 21) & 0x1)
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| 73 | #define A1_TAG_TAG(x) ((x) & 0x1fffff)
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| 74 |
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| 75 | #define A1_TAG_LEN(t) ((uintptr_t)(t)->ptr)
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| 76 | #define A1_HEADER_LEN(t) ((uintptr_t)(t)->ptr)
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| 77 |
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| 78 | #define A1_PARSE_T(type) ((A1_OP_PARSE) | (type))
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| 79 | #define A1_PARSE_TYPE_MASK 0xfff
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| 80 | #define A1_PARSE_TYPE(x) (A1_PARSE_TYPE_MASK & (x))
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| 81 |
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| 82 | #define A1_PF_INDEFINTE 0x1
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| 83 | #define A1_PF_ALLOW_BER 0x2
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| 84 |
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| 85 | #define A1_HF_PRESERVE 0x1
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| 86 | #define A1_HF_ELLIPSIS 0x2
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| 87 |
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| 88 | #define A1_HBF_RFC1510 0x1
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| 89 |
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| 90 |
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| 91 | struct asn1_template {
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| 92 | uint32_t tt;
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| 93 | size_t offset;
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| 94 | const void *ptr;
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| 95 | };
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| 96 |
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| 97 | typedef int (*asn1_type_decode)(const unsigned char *, size_t, void *, size_t *);
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| 98 | typedef int (*asn1_type_encode)(unsigned char *, size_t, const void *, size_t *);
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| 99 | typedef size_t (*asn1_type_length)(const void *);
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| 100 | typedef void (*asn1_type_release)(void *);
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| 101 | typedef int (*asn1_type_copy)(const void *, void *);
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| 102 |
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| 103 | struct asn1_type_func {
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| 104 | asn1_type_encode encode;
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| 105 | asn1_type_decode decode;
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| 106 | asn1_type_length length;
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| 107 | asn1_type_copy copy;
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| 108 | asn1_type_release release;
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| 109 | size_t size;
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| 110 | };
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| 111 |
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| 112 | struct template_of {
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| 113 | unsigned int len;
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| 114 | void *val;
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| 115 | };
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| 116 |
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| 117 | enum template_types {
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| 118 | A1T_IMEMBER = 0,
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| 119 | A1T_HEIM_INTEGER,
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| 120 | A1T_INTEGER,
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| 121 | A1T_UNSIGNED,
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| 122 | A1T_GENERAL_STRING,
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| 123 | A1T_OCTET_STRING,
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| 124 | A1T_OCTET_STRING_BER,
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| 125 | A1T_IA5_STRING,
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| 126 | A1T_BMP_STRING,
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| 127 | A1T_UNIVERSAL_STRING,
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| 128 | A1T_PRINTABLE_STRING,
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| 129 | A1T_VISIBLE_STRING,
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| 130 | A1T_UTF8_STRING,
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| 131 | A1T_GENERALIZED_TIME,
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| 132 | A1T_UTC_TIME,
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| 133 | A1T_HEIM_BIT_STRING,
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| 134 | A1T_BOOLEAN,
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| 135 | A1T_OID,
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| 136 | A1T_TELETEX_STRING,
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| 137 | A1T_NULL
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| 138 | };
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| 139 |
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| 140 |
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| 141 | #endif
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