1 /* 2 * Copyright (c) 1997 - 2006 Kungliga Tekniska H�gskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Portions Copyright (c) 2009 Apple Inc. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * 3. Neither the name of the Institute nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 /* asn1 templates */ 37 38 #ifndef __TEMPLATE_H__ 39 #define __TEMPLATE_H__ 40 41 /* tag: 42 * 0..20 tag 43 * 21 type 44 * 22..23 class 45 * 24..27 flags 46 * 28..31 op 47 */ 48 49 /* parse: 50 * 0..11 type 51 * 12..23 unused 52 * 24..27 flags 53 * 28..31 op 54 */ 55 56 #define A1_OP_MASK (0xf0000000) 57 #define A1_OP_TYPE (0x10000000) 58 #define A1_OP_TYPE_EXTERN (0x20000000) 59 #define A1_OP_TAG (0x30000000) 60 #define A1_OP_PARSE (0x40000000) 61 #define A1_OP_SEQOF (0x50000000) 62 #define A1_OP_SETOF (0x60000000) 63 #define A1_OP_BMEMBER (0x70000000) 64 #define A1_OP_CHOICE (0x80000000) 65 66 #define A1_FLAG_MASK (0x0f000000) 67 #define A1_FLAG_OPTIONAL (0x01000000) 68 #define A1_FLAG_IMPLICIT (0x02000000) 69 70 #define A1_TAG_T(CLASS,TYPE,TAG) ((A1_OP_TAG) | (((CLASS) << 22) | ((TYPE) << 21) | (TAG))) 71 #define A1_TAG_CLASS(x) (((x) >> 22) & 0x3) 72 #define A1_TAG_TYPE(x) (((x) >> 21) & 0x1) 73 #define A1_TAG_TAG(x) ((x) & 0x1fffff) 74 75 #define A1_TAG_LEN(t) ((uintptr_t)(t)->ptr) 76 #define A1_HEADER_LEN(t) ((uintptr_t)(t)->ptr) 77 78 #define A1_PARSE_T(type) ((A1_OP_PARSE) | (type)) 79 #define A1_PARSE_TYPE_MASK 0xfff 80 #define A1_PARSE_TYPE(x) (A1_PARSE_TYPE_MASK & (x)) 81 82 #define A1_PF_INDEFINTE 0x1 83 #define A1_PF_ALLOW_BER 0x2 84 85 #define A1_HF_PRESERVE 0x1 86 #define A1_HF_ELLIPSIS 0x2 87 88 #define A1_HBF_RFC1510 0x1 89 90 91 struct asn1_template { 92 uint32_t tt; 93 size_t offset; 94 const void *ptr; 95 }; 96 97 typedef int (*asn1_type_decode)(const unsigned char *, size_t, void *, size_t *); 98 typedef int (*asn1_type_encode)(unsigned char *, size_t, const void *, size_t *); 99 typedef size_t (*asn1_type_length)(const void *); 100 typedef void (*asn1_type_release)(void *); 101 typedef int (*asn1_type_copy)(const void *, void *); 102 103 struct asn1_type_func { 104 asn1_type_encode encode; 105 asn1_type_decode decode; 106 asn1_type_length length; 107 asn1_type_copy copy; 108 asn1_type_release release; 109 size_t size; 110 }; 111 112 struct template_of { 113 unsigned int len; 114 void *val; 115 }; 116 117 enum template_types { 118 A1T_IMEMBER = 0, 119 A1T_HEIM_INTEGER, 120 A1T_INTEGER, 121 A1T_UNSIGNED, 122 A1T_GENERAL_STRING, 123 A1T_OCTET_STRING, 124 A1T_OCTET_STRING_BER, 125 A1T_IA5_STRING, 126 A1T_BMP_STRING, 127 A1T_UNIVERSAL_STRING, 128 A1T_PRINTABLE_STRING, 129 A1T_VISIBLE_STRING, 130 A1T_UTF8_STRING, 131 A1T_GENERALIZED_TIME, 132 A1T_UTC_TIME, 133 A1T_HEIM_BIT_STRING, 134 A1T_BOOLEAN, 135 A1T_OID, 136 A1T_TELETEX_STRING, 137 A1T_NULL 138 }; 139 140 141 #endif 142