1 /* asn1.h 2 * 3 * Copyright (C) 2006-2021 wolfSSL Inc. 4 * 5 * This file is part of wolfSSL. 6 * 7 * wolfSSL is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * wolfSSL is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA 20 */ 21 22 /* asn1.h for openssl */ 23 24 #ifndef WOLFSSL_ASN1_H_ 25 #define WOLFSSL_ASN1_H_ 26 27 #include <wolfssl/openssl/ssl.h> 28 29 #define ASN1_STRING_new wolfSSL_ASN1_STRING_new 30 #define ASN1_STRING_type_new wolfSSL_ASN1_STRING_type_new 31 #define ASN1_STRING_type wolfSSL_ASN1_STRING_type 32 #define ASN1_STRING_set wolfSSL_ASN1_STRING_set 33 #define ASN1_OCTET_STRING_set wolfSSL_ASN1_STRING_set 34 #define ASN1_STRING_free wolfSSL_ASN1_STRING_free 35 36 #define ASN1_get_object wolfSSL_ASN1_get_object 37 #define d2i_ASN1_OBJECT wolfSSL_d2i_ASN1_OBJECT 38 #define c2i_ASN1_OBJECT wolfSSL_c2i_ASN1_OBJECT 39 40 #define V_ASN1_INTEGER 0x02 41 #define V_ASN1_OCTET_STRING 0x04 /* tag for ASN1_OCTET_STRING */ 42 #define V_ASN1_NEG 0x100 43 #define V_ASN1_NEG_INTEGER (2 | V_ASN1_NEG) 44 #define V_ASN1_NEG_ENUMERATED (10 | V_ASN1_NEG) 45 46 /* Type for ASN1_print_ex */ 47 # define ASN1_STRFLGS_ESC_2253 1 48 # define ASN1_STRFLGS_ESC_CTRL 2 49 # define ASN1_STRFLGS_ESC_MSB 4 50 # define ASN1_STRFLGS_ESC_QUOTE 8 51 # define ASN1_STRFLGS_UTF8_CONVERT 0x10 52 # define ASN1_STRFLGS_IGNORE_TYPE 0x20 53 # define ASN1_STRFLGS_SHOW_TYPE 0x40 54 # define ASN1_STRFLGS_DUMP_ALL 0x80 55 # define ASN1_STRFLGS_DUMP_UNKNOWN 0x100 56 # define ASN1_STRFLGS_DUMP_DER 0x200 57 # define ASN1_STRFLGS_RFC2253 (ASN1_STRFLGS_ESC_2253 | \ 58 ASN1_STRFLGS_ESC_CTRL | \ 59 ASN1_STRFLGS_ESC_MSB | \ 60 ASN1_STRFLGS_UTF8_CONVERT | \ 61 ASN1_STRFLGS_DUMP_UNKNOWN | \ 62 ASN1_STRFLGS_DUMP_DER) 63 64 #define MBSTRING_UTF8 0x1000 65 #define MBSTRING_ASC 0x1001 66 #define MBSTRING_BMP 0x1002 67 #define MBSTRING_UNIV 0x1004 68 69 #define ASN1_UTCTIME_print wolfSSL_ASN1_UTCTIME_print 70 #define ASN1_TIME_check wolfSSL_ASN1_TIME_check 71 #define ASN1_TIME_diff wolfSSL_ASN1_TIME_diff 72 #define ASN1_TIME_set wolfSSL_ASN1_TIME_set 73 74 #define V_ASN1_EOC 0 75 #define V_ASN1_NULL 5 76 #define V_ASN1_OBJECT 6 77 #define V_ASN1_UTF8STRING 12 78 #define V_ASN1_SEQUENCE 16 79 #define V_ASN1_SET 17 80 #define V_ASN1_PRINTABLESTRING 19 81 #define V_ASN1_T61STRING 20 82 #define V_ASN1_IA5STRING 22 83 #define V_ASN1_UTCTIME 23 84 #define V_ASN1_GENERALIZEDTIME 24 85 #define V_ASN1_UNIVERSALSTRING 28 86 #define V_ASN1_BMPSTRING 30 87 88 89 #define V_ASN1_CONSTRUCTED 0x20 90 91 #define ASN1_STRING_FLAG_BITS_LEFT 0x008 92 #define ASN1_STRING_FLAG_NDEF 0x010 93 #define ASN1_STRING_FLAG_CONT 0x020 94 #define ASN1_STRING_FLAG_MSTRING 0x040 95 #define ASN1_STRING_FLAG_EMBED 0x080 96 97 /* X.509 PKI size limits from RFC2459 (appendix A) */ 98 /* internally our limit is CTC_NAME_SIZE (64) - overriden with WC_CTC_NAME_SIZE */ 99 #define ub_name CTC_NAME_SIZE /* 32768 */ 100 #define ub_common_name CTC_NAME_SIZE /* 64 */ 101 #define ub_locality_name CTC_NAME_SIZE /* 128 */ 102 #define ub_state_name CTC_NAME_SIZE /* 128 */ 103 #define ub_organization_name CTC_NAME_SIZE /* 64 */ 104 #define ub_organization_unit_name CTC_NAME_SIZE /* 64 */ 105 #define ub_title CTC_NAME_SIZE /* 64 */ 106 #define ub_email_address CTC_NAME_SIZE /* 128 */ 107 108 109 WOLFSSL_API WOLFSSL_ASN1_INTEGER *wolfSSL_BN_to_ASN1_INTEGER( 110 const WOLFSSL_BIGNUM*, WOLFSSL_ASN1_INTEGER*); 111 112 WOLFSSL_API void wolfSSL_ASN1_TYPE_set(WOLFSSL_ASN1_TYPE *a, int type, void *value); 113 114 WOLFSSL_API int wolfSSL_ASN1_get_object(const unsigned char **in, long *len, int *tag, 115 int *cls, long inLen); 116 117 WOLFSSL_API WOLFSSL_ASN1_OBJECT *wolfSSL_c2i_ASN1_OBJECT(WOLFSSL_ASN1_OBJECT **a, 118 const unsigned char **pp, long len); 119 120 #ifdef OPENSSL_ALL 121 /* IMPLEMENT_ASN1_FUNCTIONS is strictly for external use only. Internally 122 * we don't use this. Some projects use OpenSSL to implement ASN1 types and 123 * this section is only to provide those projects with ASN1 functionality. */ 124 typedef struct { 125 size_t offset; /* Offset of this field in structure */ 126 byte type; /* The type of the member as defined in 127 * WOLFSSL_ASN1_TYPES */ 128 } WOLFSSL_ASN1_TEMPLATE; 129 130 typedef struct { 131 byte type; /* One of the ASN_Tags types */ 132 const WOLFSSL_ASN1_TEMPLATE *members; /* If SEQUENCE or CHOICE this 133 * contains the contents */ 134 size_t mcount; /* Number of members if SEQUENCE 135 * or CHOICE */ 136 size_t size; /* Structure size */ 137 } WOLFSSL_ASN1_ITEM; 138 139 typedef enum { 140 WOLFSSL_X509_ALGOR_ASN1 = 0, 141 WOLFSSL_ASN1_BIT_STRING_ASN1, 142 } WOLFSSL_ASN1_TYPES; 143 144 #define ASN1_SEQUENCE(type) \ 145 static type __##type##_dummy_struct;\ 146 static const WOLFSSL_ASN1_TEMPLATE type##_member_data[] 147 148 #define ASN1_SIMPLE(type, member, member_type) \ 149 { (char*)&__##type##_dummy_struct.member - (char*)&__##type##_dummy_struct, \ 150 WOLFSSL_##member_type##_ASN1 } 151 152 #define ASN1_SEQUENCE_END(type) \ 153 ; \ 154 const WOLFSSL_ASN1_ITEM type##_template_data = { \ 155 ASN_SEQUENCE, \ 156 type##_member_data, \ 157 sizeof(type##_member_data) / sizeof(WOLFSSL_ASN1_TEMPLATE), \ 158 sizeof(type) \ 159 }; 160 161 WOLFSSL_API void *wolfSSL_ASN1_item_new(const WOLFSSL_ASN1_ITEM *tpl); 162 WOLFSSL_API void wolfSSL_ASN1_item_free(void *val, const WOLFSSL_ASN1_ITEM *tpl); 163 WOLFSSL_API int wolfSSL_ASN1_item_i2d(const void *src, byte **dest, 164 const WOLFSSL_ASN1_ITEM *tpl); 165 166 /* Need function declaration otherwise compiler complains */ 167 #define IMPLEMENT_ASN1_FUNCTIONS(type) \ 168 type *type##_new(void); \ 169 type *type##_new(void){ \ 170 return (type*)wolfSSL_ASN1_item_new(&type##_template_data); \ 171 } \ 172 void type##_free(type *t); \ 173 void type##_free(type *t){ \ 174 wolfSSL_ASN1_item_free(t, &type##_template_data); \ 175 } \ 176 int i2d_##type(type *src, byte **dest); \ 177 int i2d_##type(type *src, byte **dest) \ 178 { \ 179 return wolfSSL_ASN1_item_i2d(src, dest, &type##_template_data);\ 180 } 181 182 #endif /* OPENSSL_ALL */ 183 184 #define BN_to_ASN1_INTEGER wolfSSL_BN_to_ASN1_INTEGER 185 #define ASN1_TYPE_set wolfSSL_ASN1_TYPE_set 186 187 #endif /* WOLFSSL_ASN1_H_ */ 188