mbed TLS library
Dependents: HTTPClient-SSL WS_SERVER
polarssl/x509_create.c@0:137634ff4186, 2015-06-11 (annotated)
- Committer:
- ansond
- Date:
- Thu Jun 11 03:27:03 2015 +0000
- Revision:
- 0:137634ff4186
initial commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ansond | 0:137634ff4186 | 1 | /* |
ansond | 0:137634ff4186 | 2 | * X.509 base functions for creating certificates / CSRs |
ansond | 0:137634ff4186 | 3 | * |
ansond | 0:137634ff4186 | 4 | * Copyright (C) 2006-2014, ARM Limited, All Rights Reserved |
ansond | 0:137634ff4186 | 5 | * |
ansond | 0:137634ff4186 | 6 | * This file is part of mbed TLS (https://tls.mbed.org) |
ansond | 0:137634ff4186 | 7 | * |
ansond | 0:137634ff4186 | 8 | * This program is free software; you can redistribute it and/or modify |
ansond | 0:137634ff4186 | 9 | * it under the terms of the GNU General Public License as published by |
ansond | 0:137634ff4186 | 10 | * the Free Software Foundation; either version 2 of the License, or |
ansond | 0:137634ff4186 | 11 | * (at your option) any later version. |
ansond | 0:137634ff4186 | 12 | * |
ansond | 0:137634ff4186 | 13 | * This program is distributed in the hope that it will be useful, |
ansond | 0:137634ff4186 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
ansond | 0:137634ff4186 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
ansond | 0:137634ff4186 | 16 | * GNU General Public License for more details. |
ansond | 0:137634ff4186 | 17 | * |
ansond | 0:137634ff4186 | 18 | * You should have received a copy of the GNU General Public License along |
ansond | 0:137634ff4186 | 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
ansond | 0:137634ff4186 | 20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
ansond | 0:137634ff4186 | 21 | */ |
ansond | 0:137634ff4186 | 22 | |
ansond | 0:137634ff4186 | 23 | #if !defined(POLARSSL_CONFIG_FILE) |
ansond | 0:137634ff4186 | 24 | #include "polarssl/config.h" |
ansond | 0:137634ff4186 | 25 | #else |
ansond | 0:137634ff4186 | 26 | #include POLARSSL_CONFIG_FILE |
ansond | 0:137634ff4186 | 27 | #endif |
ansond | 0:137634ff4186 | 28 | |
ansond | 0:137634ff4186 | 29 | #if defined(POLARSSL_X509_CREATE_C) |
ansond | 0:137634ff4186 | 30 | |
ansond | 0:137634ff4186 | 31 | #include "polarssl/x509.h" |
ansond | 0:137634ff4186 | 32 | #include "polarssl/asn1write.h" |
ansond | 0:137634ff4186 | 33 | #include "polarssl/oid.h" |
ansond | 0:137634ff4186 | 34 | |
ansond | 0:137634ff4186 | 35 | #include <string.h> |
ansond | 0:137634ff4186 | 36 | |
ansond | 0:137634ff4186 | 37 | #if defined(_MSC_VER) && !defined strncasecmp && !defined(EFIX64) && \ |
ansond | 0:137634ff4186 | 38 | !defined(EFI32) |
ansond | 0:137634ff4186 | 39 | #define strncasecmp _strnicmp |
ansond | 0:137634ff4186 | 40 | #endif |
ansond | 0:137634ff4186 | 41 | |
ansond | 0:137634ff4186 | 42 | typedef struct { |
ansond | 0:137634ff4186 | 43 | const char *name; |
ansond | 0:137634ff4186 | 44 | size_t name_len; |
ansond | 0:137634ff4186 | 45 | const char*oid; |
ansond | 0:137634ff4186 | 46 | } x509_attr_descriptor_t; |
ansond | 0:137634ff4186 | 47 | |
ansond | 0:137634ff4186 | 48 | #define ADD_STRLEN( s ) s, sizeof( s ) - 1 |
ansond | 0:137634ff4186 | 49 | |
ansond | 0:137634ff4186 | 50 | static const x509_attr_descriptor_t x509_attrs[] = |
ansond | 0:137634ff4186 | 51 | { |
ansond | 0:137634ff4186 | 52 | { ADD_STRLEN( "CN" ), OID_AT_CN }, |
ansond | 0:137634ff4186 | 53 | { ADD_STRLEN( "commonName" ), OID_AT_CN }, |
ansond | 0:137634ff4186 | 54 | { ADD_STRLEN( "C" ), OID_AT_COUNTRY }, |
ansond | 0:137634ff4186 | 55 | { ADD_STRLEN( "countryName" ), OID_AT_COUNTRY }, |
ansond | 0:137634ff4186 | 56 | { ADD_STRLEN( "O" ), OID_AT_ORGANIZATION }, |
ansond | 0:137634ff4186 | 57 | { ADD_STRLEN( "organizationName" ), OID_AT_ORGANIZATION }, |
ansond | 0:137634ff4186 | 58 | { ADD_STRLEN( "L" ), OID_AT_LOCALITY }, |
ansond | 0:137634ff4186 | 59 | { ADD_STRLEN( "locality" ), OID_AT_LOCALITY }, |
ansond | 0:137634ff4186 | 60 | { ADD_STRLEN( "R" ), OID_PKCS9_EMAIL }, |
ansond | 0:137634ff4186 | 61 | { ADD_STRLEN( "OU" ), OID_AT_ORG_UNIT }, |
ansond | 0:137634ff4186 | 62 | { ADD_STRLEN( "organizationalUnitName" ), OID_AT_ORG_UNIT }, |
ansond | 0:137634ff4186 | 63 | { ADD_STRLEN( "ST" ), OID_AT_STATE }, |
ansond | 0:137634ff4186 | 64 | { ADD_STRLEN( "stateOrProvinceName" ), OID_AT_STATE }, |
ansond | 0:137634ff4186 | 65 | { ADD_STRLEN( "emailAddress" ), OID_PKCS9_EMAIL }, |
ansond | 0:137634ff4186 | 66 | { ADD_STRLEN( "serialNumber" ), OID_AT_SERIAL_NUMBER }, |
ansond | 0:137634ff4186 | 67 | { ADD_STRLEN( "postalAddress" ), OID_AT_POSTAL_ADDRESS }, |
ansond | 0:137634ff4186 | 68 | { ADD_STRLEN( "postalCode" ), OID_AT_POSTAL_CODE }, |
ansond | 0:137634ff4186 | 69 | { ADD_STRLEN( "dnQualifier" ), OID_AT_DN_QUALIFIER }, |
ansond | 0:137634ff4186 | 70 | { ADD_STRLEN( "title" ), OID_AT_TITLE }, |
ansond | 0:137634ff4186 | 71 | { ADD_STRLEN( "surName" ), OID_AT_SUR_NAME }, |
ansond | 0:137634ff4186 | 72 | { ADD_STRLEN( "SN" ), OID_AT_SUR_NAME }, |
ansond | 0:137634ff4186 | 73 | { ADD_STRLEN( "givenName" ), OID_AT_GIVEN_NAME }, |
ansond | 0:137634ff4186 | 74 | { ADD_STRLEN( "GN" ), OID_AT_GIVEN_NAME }, |
ansond | 0:137634ff4186 | 75 | { ADD_STRLEN( "initials" ), OID_AT_INITIALS }, |
ansond | 0:137634ff4186 | 76 | { ADD_STRLEN( "pseudonym" ), OID_AT_PSEUDONYM }, |
ansond | 0:137634ff4186 | 77 | { ADD_STRLEN( "generationQualifier" ), OID_AT_GENERATION_QUALIFIER }, |
ansond | 0:137634ff4186 | 78 | { ADD_STRLEN( "domainComponent" ), OID_DOMAIN_COMPONENT }, |
ansond | 0:137634ff4186 | 79 | { ADD_STRLEN( "DC" ), OID_DOMAIN_COMPONENT }, |
ansond | 0:137634ff4186 | 80 | { NULL, 0, NULL } |
ansond | 0:137634ff4186 | 81 | }; |
ansond | 0:137634ff4186 | 82 | |
ansond | 0:137634ff4186 | 83 | static const char *x509_at_oid_from_name( const char *name, size_t name_len ) |
ansond | 0:137634ff4186 | 84 | { |
ansond | 0:137634ff4186 | 85 | const x509_attr_descriptor_t *cur; |
ansond | 0:137634ff4186 | 86 | |
ansond | 0:137634ff4186 | 87 | for( cur = x509_attrs; cur->name != NULL; cur++ ) |
ansond | 0:137634ff4186 | 88 | if( cur->name_len == name_len && |
ansond | 0:137634ff4186 | 89 | strncasecmp( cur->name, name, name_len ) == 0 ) |
ansond | 0:137634ff4186 | 90 | break; |
ansond | 0:137634ff4186 | 91 | |
ansond | 0:137634ff4186 | 92 | return( cur->oid ); |
ansond | 0:137634ff4186 | 93 | } |
ansond | 0:137634ff4186 | 94 | |
ansond | 0:137634ff4186 | 95 | int x509_string_to_names( asn1_named_data **head, const char *name ) |
ansond | 0:137634ff4186 | 96 | { |
ansond | 0:137634ff4186 | 97 | int ret = 0; |
ansond | 0:137634ff4186 | 98 | const char *s = name, *c = s; |
ansond | 0:137634ff4186 | 99 | const char *end = s + strlen( s ); |
ansond | 0:137634ff4186 | 100 | const char *oid = NULL; |
ansond | 0:137634ff4186 | 101 | int in_tag = 1; |
ansond | 0:137634ff4186 | 102 | char data[X509_MAX_DN_NAME_SIZE]; |
ansond | 0:137634ff4186 | 103 | char *d = data; |
ansond | 0:137634ff4186 | 104 | |
ansond | 0:137634ff4186 | 105 | /* Clear existing chain if present */ |
ansond | 0:137634ff4186 | 106 | asn1_free_named_data_list( head ); |
ansond | 0:137634ff4186 | 107 | |
ansond | 0:137634ff4186 | 108 | while( c <= end ) |
ansond | 0:137634ff4186 | 109 | { |
ansond | 0:137634ff4186 | 110 | if( in_tag && *c == '=' ) |
ansond | 0:137634ff4186 | 111 | { |
ansond | 0:137634ff4186 | 112 | if( ( oid = x509_at_oid_from_name( s, c - s ) ) == NULL ) |
ansond | 0:137634ff4186 | 113 | { |
ansond | 0:137634ff4186 | 114 | ret = POLARSSL_ERR_X509_UNKNOWN_OID; |
ansond | 0:137634ff4186 | 115 | goto exit; |
ansond | 0:137634ff4186 | 116 | } |
ansond | 0:137634ff4186 | 117 | |
ansond | 0:137634ff4186 | 118 | s = c + 1; |
ansond | 0:137634ff4186 | 119 | in_tag = 0; |
ansond | 0:137634ff4186 | 120 | d = data; |
ansond | 0:137634ff4186 | 121 | } |
ansond | 0:137634ff4186 | 122 | |
ansond | 0:137634ff4186 | 123 | if( !in_tag && *c == '\\' && c != end ) |
ansond | 0:137634ff4186 | 124 | { |
ansond | 0:137634ff4186 | 125 | c++; |
ansond | 0:137634ff4186 | 126 | |
ansond | 0:137634ff4186 | 127 | /* Check for valid escaped characters */ |
ansond | 0:137634ff4186 | 128 | if( c == end || *c != ',' ) |
ansond | 0:137634ff4186 | 129 | { |
ansond | 0:137634ff4186 | 130 | ret = POLARSSL_ERR_X509_INVALID_NAME; |
ansond | 0:137634ff4186 | 131 | goto exit; |
ansond | 0:137634ff4186 | 132 | } |
ansond | 0:137634ff4186 | 133 | } |
ansond | 0:137634ff4186 | 134 | else if( !in_tag && ( *c == ',' || c == end ) ) |
ansond | 0:137634ff4186 | 135 | { |
ansond | 0:137634ff4186 | 136 | if( asn1_store_named_data( head, oid, strlen( oid ), |
ansond | 0:137634ff4186 | 137 | (unsigned char *) data, |
ansond | 0:137634ff4186 | 138 | d - data ) == NULL ) |
ansond | 0:137634ff4186 | 139 | { |
ansond | 0:137634ff4186 | 140 | return( POLARSSL_ERR_X509_MALLOC_FAILED ); |
ansond | 0:137634ff4186 | 141 | } |
ansond | 0:137634ff4186 | 142 | |
ansond | 0:137634ff4186 | 143 | while( c < end && *(c + 1) == ' ' ) |
ansond | 0:137634ff4186 | 144 | c++; |
ansond | 0:137634ff4186 | 145 | |
ansond | 0:137634ff4186 | 146 | s = c + 1; |
ansond | 0:137634ff4186 | 147 | in_tag = 1; |
ansond | 0:137634ff4186 | 148 | } |
ansond | 0:137634ff4186 | 149 | |
ansond | 0:137634ff4186 | 150 | if( !in_tag && s != c + 1 ) |
ansond | 0:137634ff4186 | 151 | { |
ansond | 0:137634ff4186 | 152 | *(d++) = *c; |
ansond | 0:137634ff4186 | 153 | |
ansond | 0:137634ff4186 | 154 | if( d - data == X509_MAX_DN_NAME_SIZE ) |
ansond | 0:137634ff4186 | 155 | { |
ansond | 0:137634ff4186 | 156 | ret = POLARSSL_ERR_X509_INVALID_NAME; |
ansond | 0:137634ff4186 | 157 | goto exit; |
ansond | 0:137634ff4186 | 158 | } |
ansond | 0:137634ff4186 | 159 | } |
ansond | 0:137634ff4186 | 160 | |
ansond | 0:137634ff4186 | 161 | c++; |
ansond | 0:137634ff4186 | 162 | } |
ansond | 0:137634ff4186 | 163 | |
ansond | 0:137634ff4186 | 164 | exit: |
ansond | 0:137634ff4186 | 165 | |
ansond | 0:137634ff4186 | 166 | return( ret ); |
ansond | 0:137634ff4186 | 167 | } |
ansond | 0:137634ff4186 | 168 | |
ansond | 0:137634ff4186 | 169 | /* The first byte of the value in the asn1_named_data structure is reserved |
ansond | 0:137634ff4186 | 170 | * to store the critical boolean for us |
ansond | 0:137634ff4186 | 171 | */ |
ansond | 0:137634ff4186 | 172 | int x509_set_extension( asn1_named_data **head, const char *oid, size_t oid_len, |
ansond | 0:137634ff4186 | 173 | int critical, const unsigned char *val, size_t val_len ) |
ansond | 0:137634ff4186 | 174 | { |
ansond | 0:137634ff4186 | 175 | asn1_named_data *cur; |
ansond | 0:137634ff4186 | 176 | |
ansond | 0:137634ff4186 | 177 | if( ( cur = asn1_store_named_data( head, oid, oid_len, |
ansond | 0:137634ff4186 | 178 | NULL, val_len + 1 ) ) == NULL ) |
ansond | 0:137634ff4186 | 179 | { |
ansond | 0:137634ff4186 | 180 | return( POLARSSL_ERR_X509_MALLOC_FAILED ); |
ansond | 0:137634ff4186 | 181 | } |
ansond | 0:137634ff4186 | 182 | |
ansond | 0:137634ff4186 | 183 | cur->val.p[0] = critical; |
ansond | 0:137634ff4186 | 184 | memcpy( cur->val.p + 1, val, val_len ); |
ansond | 0:137634ff4186 | 185 | |
ansond | 0:137634ff4186 | 186 | return( 0 ); |
ansond | 0:137634ff4186 | 187 | } |
ansond | 0:137634ff4186 | 188 | |
ansond | 0:137634ff4186 | 189 | /* |
ansond | 0:137634ff4186 | 190 | * RelativeDistinguishedName ::= |
ansond | 0:137634ff4186 | 191 | * SET OF AttributeTypeAndValue |
ansond | 0:137634ff4186 | 192 | * |
ansond | 0:137634ff4186 | 193 | * AttributeTypeAndValue ::= SEQUENCE { |
ansond | 0:137634ff4186 | 194 | * type AttributeType, |
ansond | 0:137634ff4186 | 195 | * value AttributeValue } |
ansond | 0:137634ff4186 | 196 | * |
ansond | 0:137634ff4186 | 197 | * AttributeType ::= OBJECT IDENTIFIER |
ansond | 0:137634ff4186 | 198 | * |
ansond | 0:137634ff4186 | 199 | * AttributeValue ::= ANY DEFINED BY AttributeType |
ansond | 0:137634ff4186 | 200 | */ |
ansond | 0:137634ff4186 | 201 | static int x509_write_name( unsigned char **p, unsigned char *start, |
ansond | 0:137634ff4186 | 202 | const char *oid, size_t oid_len, |
ansond | 0:137634ff4186 | 203 | const unsigned char *name, size_t name_len ) |
ansond | 0:137634ff4186 | 204 | { |
ansond | 0:137634ff4186 | 205 | int ret; |
ansond | 0:137634ff4186 | 206 | size_t len = 0; |
ansond | 0:137634ff4186 | 207 | |
ansond | 0:137634ff4186 | 208 | // Write PrintableString for all except OID_PKCS9_EMAIL |
ansond | 0:137634ff4186 | 209 | // |
ansond | 0:137634ff4186 | 210 | if( OID_SIZE( OID_PKCS9_EMAIL ) == oid_len && |
ansond | 0:137634ff4186 | 211 | memcmp( oid, OID_PKCS9_EMAIL, oid_len ) == 0 ) |
ansond | 0:137634ff4186 | 212 | { |
ansond | 0:137634ff4186 | 213 | ASN1_CHK_ADD( len, asn1_write_ia5_string( p, start, |
ansond | 0:137634ff4186 | 214 | (const char *) name, |
ansond | 0:137634ff4186 | 215 | name_len ) ); |
ansond | 0:137634ff4186 | 216 | } |
ansond | 0:137634ff4186 | 217 | else |
ansond | 0:137634ff4186 | 218 | { |
ansond | 0:137634ff4186 | 219 | ASN1_CHK_ADD( len, asn1_write_printable_string( p, start, |
ansond | 0:137634ff4186 | 220 | (const char *) name, |
ansond | 0:137634ff4186 | 221 | name_len ) ); |
ansond | 0:137634ff4186 | 222 | } |
ansond | 0:137634ff4186 | 223 | |
ansond | 0:137634ff4186 | 224 | // Write OID |
ansond | 0:137634ff4186 | 225 | // |
ansond | 0:137634ff4186 | 226 | ASN1_CHK_ADD( len, asn1_write_oid( p, start, oid, oid_len ) ); |
ansond | 0:137634ff4186 | 227 | |
ansond | 0:137634ff4186 | 228 | ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) ); |
ansond | 0:137634ff4186 | 229 | ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_CONSTRUCTED | |
ansond | 0:137634ff4186 | 230 | ASN1_SEQUENCE ) ); |
ansond | 0:137634ff4186 | 231 | |
ansond | 0:137634ff4186 | 232 | ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) ); |
ansond | 0:137634ff4186 | 233 | ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_CONSTRUCTED | |
ansond | 0:137634ff4186 | 234 | ASN1_SET ) ); |
ansond | 0:137634ff4186 | 235 | |
ansond | 0:137634ff4186 | 236 | return( (int) len ); |
ansond | 0:137634ff4186 | 237 | } |
ansond | 0:137634ff4186 | 238 | |
ansond | 0:137634ff4186 | 239 | int x509_write_names( unsigned char **p, unsigned char *start, |
ansond | 0:137634ff4186 | 240 | asn1_named_data *first ) |
ansond | 0:137634ff4186 | 241 | { |
ansond | 0:137634ff4186 | 242 | int ret; |
ansond | 0:137634ff4186 | 243 | size_t len = 0; |
ansond | 0:137634ff4186 | 244 | asn1_named_data *cur = first; |
ansond | 0:137634ff4186 | 245 | |
ansond | 0:137634ff4186 | 246 | while( cur != NULL ) |
ansond | 0:137634ff4186 | 247 | { |
ansond | 0:137634ff4186 | 248 | ASN1_CHK_ADD( len, x509_write_name( p, start, (char *) cur->oid.p, |
ansond | 0:137634ff4186 | 249 | cur->oid.len, |
ansond | 0:137634ff4186 | 250 | cur->val.p, cur->val.len ) ); |
ansond | 0:137634ff4186 | 251 | cur = cur->next; |
ansond | 0:137634ff4186 | 252 | } |
ansond | 0:137634ff4186 | 253 | |
ansond | 0:137634ff4186 | 254 | ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) ); |
ansond | 0:137634ff4186 | 255 | ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_CONSTRUCTED | |
ansond | 0:137634ff4186 | 256 | ASN1_SEQUENCE ) ); |
ansond | 0:137634ff4186 | 257 | |
ansond | 0:137634ff4186 | 258 | return( (int) len ); |
ansond | 0:137634ff4186 | 259 | } |
ansond | 0:137634ff4186 | 260 | |
ansond | 0:137634ff4186 | 261 | int x509_write_sig( unsigned char **p, unsigned char *start, |
ansond | 0:137634ff4186 | 262 | const char *oid, size_t oid_len, |
ansond | 0:137634ff4186 | 263 | unsigned char *sig, size_t size ) |
ansond | 0:137634ff4186 | 264 | { |
ansond | 0:137634ff4186 | 265 | int ret; |
ansond | 0:137634ff4186 | 266 | size_t len = 0; |
ansond | 0:137634ff4186 | 267 | |
ansond | 0:137634ff4186 | 268 | if( *p - start < (int) size + 1 ) |
ansond | 0:137634ff4186 | 269 | return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL ); |
ansond | 0:137634ff4186 | 270 | |
ansond | 0:137634ff4186 | 271 | len = size; |
ansond | 0:137634ff4186 | 272 | (*p) -= len; |
ansond | 0:137634ff4186 | 273 | memcpy( *p, sig, len ); |
ansond | 0:137634ff4186 | 274 | |
ansond | 0:137634ff4186 | 275 | *--(*p) = 0; |
ansond | 0:137634ff4186 | 276 | len += 1; |
ansond | 0:137634ff4186 | 277 | |
ansond | 0:137634ff4186 | 278 | ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) ); |
ansond | 0:137634ff4186 | 279 | ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_BIT_STRING ) ); |
ansond | 0:137634ff4186 | 280 | |
ansond | 0:137634ff4186 | 281 | // Write OID |
ansond | 0:137634ff4186 | 282 | // |
ansond | 0:137634ff4186 | 283 | ASN1_CHK_ADD( len, asn1_write_algorithm_identifier( p, start, oid, |
ansond | 0:137634ff4186 | 284 | oid_len, 0 ) ); |
ansond | 0:137634ff4186 | 285 | |
ansond | 0:137634ff4186 | 286 | return( (int) len ); |
ansond | 0:137634ff4186 | 287 | } |
ansond | 0:137634ff4186 | 288 | |
ansond | 0:137634ff4186 | 289 | static int x509_write_extension( unsigned char **p, unsigned char *start, |
ansond | 0:137634ff4186 | 290 | asn1_named_data *ext ) |
ansond | 0:137634ff4186 | 291 | { |
ansond | 0:137634ff4186 | 292 | int ret; |
ansond | 0:137634ff4186 | 293 | size_t len = 0; |
ansond | 0:137634ff4186 | 294 | |
ansond | 0:137634ff4186 | 295 | ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start, ext->val.p + 1, |
ansond | 0:137634ff4186 | 296 | ext->val.len - 1 ) ); |
ansond | 0:137634ff4186 | 297 | ASN1_CHK_ADD( len, asn1_write_len( p, start, ext->val.len - 1 ) ); |
ansond | 0:137634ff4186 | 298 | ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_OCTET_STRING ) ); |
ansond | 0:137634ff4186 | 299 | |
ansond | 0:137634ff4186 | 300 | if( ext->val.p[0] != 0 ) |
ansond | 0:137634ff4186 | 301 | { |
ansond | 0:137634ff4186 | 302 | ASN1_CHK_ADD( len, asn1_write_bool( p, start, 1 ) ); |
ansond | 0:137634ff4186 | 303 | } |
ansond | 0:137634ff4186 | 304 | |
ansond | 0:137634ff4186 | 305 | ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start, ext->oid.p, |
ansond | 0:137634ff4186 | 306 | ext->oid.len ) ); |
ansond | 0:137634ff4186 | 307 | ASN1_CHK_ADD( len, asn1_write_len( p, start, ext->oid.len ) ); |
ansond | 0:137634ff4186 | 308 | ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_OID ) ); |
ansond | 0:137634ff4186 | 309 | |
ansond | 0:137634ff4186 | 310 | ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) ); |
ansond | 0:137634ff4186 | 311 | ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_CONSTRUCTED | |
ansond | 0:137634ff4186 | 312 | ASN1_SEQUENCE ) ); |
ansond | 0:137634ff4186 | 313 | |
ansond | 0:137634ff4186 | 314 | return( (int) len ); |
ansond | 0:137634ff4186 | 315 | } |
ansond | 0:137634ff4186 | 316 | |
ansond | 0:137634ff4186 | 317 | /* |
ansond | 0:137634ff4186 | 318 | * Extension ::= SEQUENCE { |
ansond | 0:137634ff4186 | 319 | * extnID OBJECT IDENTIFIER, |
ansond | 0:137634ff4186 | 320 | * critical BOOLEAN DEFAULT FALSE, |
ansond | 0:137634ff4186 | 321 | * extnValue OCTET STRING |
ansond | 0:137634ff4186 | 322 | * -- contains the DER encoding of an ASN.1 value |
ansond | 0:137634ff4186 | 323 | * -- corresponding to the extension type identified |
ansond | 0:137634ff4186 | 324 | * -- by extnID |
ansond | 0:137634ff4186 | 325 | * } |
ansond | 0:137634ff4186 | 326 | */ |
ansond | 0:137634ff4186 | 327 | int x509_write_extensions( unsigned char **p, unsigned char *start, |
ansond | 0:137634ff4186 | 328 | asn1_named_data *first ) |
ansond | 0:137634ff4186 | 329 | { |
ansond | 0:137634ff4186 | 330 | int ret; |
ansond | 0:137634ff4186 | 331 | size_t len = 0; |
ansond | 0:137634ff4186 | 332 | asn1_named_data *cur_ext = first; |
ansond | 0:137634ff4186 | 333 | |
ansond | 0:137634ff4186 | 334 | while( cur_ext != NULL ) |
ansond | 0:137634ff4186 | 335 | { |
ansond | 0:137634ff4186 | 336 | ASN1_CHK_ADD( len, x509_write_extension( p, start, cur_ext ) ); |
ansond | 0:137634ff4186 | 337 | cur_ext = cur_ext->next; |
ansond | 0:137634ff4186 | 338 | } |
ansond | 0:137634ff4186 | 339 | |
ansond | 0:137634ff4186 | 340 | return( (int) len ); |
ansond | 0:137634ff4186 | 341 | } |
ansond | 0:137634ff4186 | 342 | |
ansond | 0:137634ff4186 | 343 | #endif /* POLARSSL_X509_CREATE_C */ |
ansond | 0:137634ff4186 | 344 |