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#define _asn1_free_top _asn1_free 42 43/* tag: 44 * 0..20 tag 45 * 21 type 46 * 22..23 class 47 * 24..27 flags 48 * 28..31 op 49 */ 50 51/* parse: 52 * 0..11 type 53 * 12..23 unused 54 * 24..27 flags 55 * 28..31 op 56 */ 57 58#define A1_OP_MASK (0xf0000000) 59#define A1_OP_TYPE (0x10000000) 60#define A1_OP_TYPE_EXTERN (0x20000000) 61#define A1_OP_TAG (0x30000000) 62#define A1_OP_PARSE (0x40000000) 63#define A1_OP_SEQOF (0x50000000) 64#define A1_OP_SETOF (0x60000000) 65#define A1_OP_BMEMBER (0x70000000) 66#define A1_OP_CHOICE (0x80000000) 67 68#define A1_FLAG_MASK (0x0f000000) 69#define A1_FLAG_OPTIONAL (0x01000000) 70#define A1_FLAG_IMPLICIT (0x02000000) 71 72#define A1_TAG_T(CLASS,TYPE,TAG) ((A1_OP_TAG) | (((CLASS) << 22) | ((TYPE) << 21) | (TAG))) 73#define A1_TAG_CLASS(x) (((x) >> 22) & 0x3) 74#define A1_TAG_TYPE(x) (((x) >> 21) & 0x1) 75#define A1_TAG_TAG(x) ((x) & 0x1fffff) 76 77#define A1_TAG_LEN(t) ((uintptr_t)(t)->ptr) 78#define A1_HEADER_LEN(t) ((uintptr_t)(t)->ptr) 79 80#define A1_PARSE_T(type) ((A1_OP_PARSE) | (type)) 81#define A1_PARSE_TYPE_MASK 0xfff 82#define A1_PARSE_TYPE(x) (A1_PARSE_TYPE_MASK & (x)) 83 84#define A1_PF_INDEFINTE 0x1 85#define A1_PF_ALLOW_BER 0x2 86 87#define A1_HF_PRESERVE 0x1 88#define A1_HF_ELLIPSIS 0x2 89 90#define A1_HBF_RFC1510 0x1 91 92 93struct asn1_template { 94 uint32_t tt; 95 uint32_t offset; 96 const void *ptr; 97}; 98 99typedef int (*asn1_type_decode)(const unsigned char *, size_t, void *, size_t *); 100typedef int (*asn1_type_encode)(unsigned char *, size_t, const void *, size_t *); 101typedef size_t (*asn1_type_length)(const void *); 102typedef void (*asn1_type_release)(void *); 103typedef int (*asn1_type_copy)(const void *, void *); 104 105struct asn1_type_func { 106 asn1_type_encode encode; 107 asn1_type_decode decode; 108 asn1_type_length length; 109 asn1_type_copy copy; 110 asn1_type_release release; 111 size_t size; 112}; 113 114struct template_of { 115 unsigned int len; 116 void *val; 117}; 118 119enum template_types { 120 A1T_IMEMBER = 0, 121 A1T_HEIM_INTEGER, 122 A1T_INTEGER, 123 A1T_UNSIGNED, 124 A1T_GENERAL_STRING, 125 A1T_OCTET_STRING, 126 A1T_OCTET_STRING_BER, 127 A1T_IA5_STRING, 128 A1T_BMP_STRING, 129 A1T_UNIVERSAL_STRING, 130 A1T_PRINTABLE_STRING, 131 A1T_VISIBLE_STRING, 132 A1T_UTF8_STRING, 133 A1T_GENERALIZED_TIME, 134 A1T_UTC_TIME, 135 A1T_HEIM_BIT_STRING, 136 A1T_BOOLEAN, 137 A1T_OID, 138 A1T_TELETEX_STRING, 139 A1T_NUM_ENTRY 140}; 141 142extern struct asn1_type_func asn1_template_prim[A1T_NUM_ENTRY]; 143 144#define ABORT_ON_ERROR() abort() 145 146#define DPOC(data,offset) ((const void *)(((const unsigned char *)data) + offset)) 147#define DPO(data,offset) ((void *)(((unsigned char *)data) + offset)) 148 149 150#endif 151