Avnet / WNCInterface

The WDCInterface is is a drop-in replacement for an EthernetInterface class that allows the user to connect to the Internet with a Wistron NeWeb Corporation (WNC) M14A2A Series data module using the standard network Socket API's. This interface class is used in the AT&T Cellular IoT Starter Kit which is sold by Avnet (http://cloudconnectkits.org/product/att-cellular-iot-starter-kit).

Dependencies:   WncControllerK64F

Dependents:   WNCProximityMqtt Pubnub_ATT_IoT_SK_WNC_sync BluemixDemo BluemixQS ... more

See the WNCInterface README in the Wiki tab for detailed information on this library.

mbedtls/source/x509_create.c@12:0071cb144c7a, 2016-11-01 (annotated)

Committer:
JMF
Date:
Tue Nov 01 14:22:56 2016 +0000
Revision:
12:0071cb144c7a
Adding mbedtls files

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JMF 12:0071cb144c7a 1 /*
JMF 12:0071cb144c7a 2 * X.509 base functions for creating certificates / CSRs
JMF 12:0071cb144c7a 3 *
JMF 12:0071cb144c7a 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
JMF 12:0071cb144c7a 5 * SPDX-License-Identifier: Apache-2.0
JMF 12:0071cb144c7a 6 *
JMF 12:0071cb144c7a 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may
JMF 12:0071cb144c7a 8 * not use this file except in compliance with the License.
JMF 12:0071cb144c7a 9 * You may obtain a copy of the License at
JMF 12:0071cb144c7a 10 *
JMF 12:0071cb144c7a 11 * http://www.apache.org/licenses/LICENSE-2.0
JMF 12:0071cb144c7a 12 *
JMF 12:0071cb144c7a 13 * Unless required by applicable law or agreed to in writing, software
JMF 12:0071cb144c7a 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
JMF 12:0071cb144c7a 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
JMF 12:0071cb144c7a 16 * See the License for the specific language governing permissions and
JMF 12:0071cb144c7a 17 * limitations under the License.
JMF 12:0071cb144c7a 18 *
JMF 12:0071cb144c7a 19 * This file is part of mbed TLS (https://tls.mbed.org)
JMF 12:0071cb144c7a 20 */
JMF 12:0071cb144c7a 21
JMF 12:0071cb144c7a 22 #if !defined(MBEDTLS_CONFIG_FILE)
JMF 12:0071cb144c7a 23 #include "mbedtls/config.h"
JMF 12:0071cb144c7a 24 #else
JMF 12:0071cb144c7a 25 #include MBEDTLS_CONFIG_FILE
JMF 12:0071cb144c7a 26 #endif
JMF 12:0071cb144c7a 27
JMF 12:0071cb144c7a 28 #if defined(MBEDTLS_X509_CREATE_C)
JMF 12:0071cb144c7a 29
JMF 12:0071cb144c7a 30 #include "mbedtls/x509.h"
JMF 12:0071cb144c7a 31 #include "mbedtls/asn1write.h"
JMF 12:0071cb144c7a 32 #include "mbedtls/oid.h"
JMF 12:0071cb144c7a 33
JMF 12:0071cb144c7a 34 #include <string.h>
JMF 12:0071cb144c7a 35
JMF 12:0071cb144c7a 36 typedef struct {
JMF 12:0071cb144c7a 37 const char *name;
JMF 12:0071cb144c7a 38 size_t name_len;
JMF 12:0071cb144c7a 39 const char*oid;
JMF 12:0071cb144c7a 40 } x509_attr_descriptor_t;
JMF 12:0071cb144c7a 41
JMF 12:0071cb144c7a 42 #define ADD_STRLEN( s ) s, sizeof( s ) - 1
JMF 12:0071cb144c7a 43
JMF 12:0071cb144c7a 44 static const x509_attr_descriptor_t x509_attrs[] =
JMF 12:0071cb144c7a 45 {
JMF 12:0071cb144c7a 46 { ADD_STRLEN( "CN" ), MBEDTLS_OID_AT_CN },
JMF 12:0071cb144c7a 47 { ADD_STRLEN( "commonName" ), MBEDTLS_OID_AT_CN },
JMF 12:0071cb144c7a 48 { ADD_STRLEN( "C" ), MBEDTLS_OID_AT_COUNTRY },
JMF 12:0071cb144c7a 49 { ADD_STRLEN( "countryName" ), MBEDTLS_OID_AT_COUNTRY },
JMF 12:0071cb144c7a 50 { ADD_STRLEN( "O" ), MBEDTLS_OID_AT_ORGANIZATION },
JMF 12:0071cb144c7a 51 { ADD_STRLEN( "organizationName" ), MBEDTLS_OID_AT_ORGANIZATION },
JMF 12:0071cb144c7a 52 { ADD_STRLEN( "L" ), MBEDTLS_OID_AT_LOCALITY },
JMF 12:0071cb144c7a 53 { ADD_STRLEN( "locality" ), MBEDTLS_OID_AT_LOCALITY },
JMF 12:0071cb144c7a 54 { ADD_STRLEN( "R" ), MBEDTLS_OID_PKCS9_EMAIL },
JMF 12:0071cb144c7a 55 { ADD_STRLEN( "OU" ), MBEDTLS_OID_AT_ORG_UNIT },
JMF 12:0071cb144c7a 56 { ADD_STRLEN( "organizationalUnitName" ), MBEDTLS_OID_AT_ORG_UNIT },
JMF 12:0071cb144c7a 57 { ADD_STRLEN( "ST" ), MBEDTLS_OID_AT_STATE },
JMF 12:0071cb144c7a 58 { ADD_STRLEN( "stateOrProvinceName" ), MBEDTLS_OID_AT_STATE },
JMF 12:0071cb144c7a 59 { ADD_STRLEN( "emailAddress" ), MBEDTLS_OID_PKCS9_EMAIL },
JMF 12:0071cb144c7a 60 { ADD_STRLEN( "serialNumber" ), MBEDTLS_OID_AT_SERIAL_NUMBER },
JMF 12:0071cb144c7a 61 { ADD_STRLEN( "postalAddress" ), MBEDTLS_OID_AT_POSTAL_ADDRESS },
JMF 12:0071cb144c7a 62 { ADD_STRLEN( "postalCode" ), MBEDTLS_OID_AT_POSTAL_CODE },
JMF 12:0071cb144c7a 63 { ADD_STRLEN( "dnQualifier" ), MBEDTLS_OID_AT_DN_QUALIFIER },
JMF 12:0071cb144c7a 64 { ADD_STRLEN( "title" ), MBEDTLS_OID_AT_TITLE },
JMF 12:0071cb144c7a 65 { ADD_STRLEN( "surName" ), MBEDTLS_OID_AT_SUR_NAME },
JMF 12:0071cb144c7a 66 { ADD_STRLEN( "SN" ), MBEDTLS_OID_AT_SUR_NAME },
JMF 12:0071cb144c7a 67 { ADD_STRLEN( "givenName" ), MBEDTLS_OID_AT_GIVEN_NAME },
JMF 12:0071cb144c7a 68 { ADD_STRLEN( "GN" ), MBEDTLS_OID_AT_GIVEN_NAME },
JMF 12:0071cb144c7a 69 { ADD_STRLEN( "initials" ), MBEDTLS_OID_AT_INITIALS },
JMF 12:0071cb144c7a 70 { ADD_STRLEN( "pseudonym" ), MBEDTLS_OID_AT_PSEUDONYM },
JMF 12:0071cb144c7a 71 { ADD_STRLEN( "generationQualifier" ), MBEDTLS_OID_AT_GENERATION_QUALIFIER },
JMF 12:0071cb144c7a 72 { ADD_STRLEN( "domainComponent" ), MBEDTLS_OID_DOMAIN_COMPONENT },
JMF 12:0071cb144c7a 73 { ADD_STRLEN( "DC" ), MBEDTLS_OID_DOMAIN_COMPONENT },
JMF 12:0071cb144c7a 74 { NULL, 0, NULL }
JMF 12:0071cb144c7a 75 };
JMF 12:0071cb144c7a 76
JMF 12:0071cb144c7a 77 static const char *x509_at_oid_from_name( const char *name, size_t name_len )
JMF 12:0071cb144c7a 78 {
JMF 12:0071cb144c7a 79 const x509_attr_descriptor_t *cur;
JMF 12:0071cb144c7a 80
JMF 12:0071cb144c7a 81 for( cur = x509_attrs; cur->name != NULL; cur++ )
JMF 12:0071cb144c7a 82 if( cur->name_len == name_len &&
JMF 12:0071cb144c7a 83 strncmp( cur->name, name, name_len ) == 0 )
JMF 12:0071cb144c7a 84 break;
JMF 12:0071cb144c7a 85
JMF 12:0071cb144c7a 86 return( cur->oid );
JMF 12:0071cb144c7a 87 }
JMF 12:0071cb144c7a 88
JMF 12:0071cb144c7a 89 int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name )
JMF 12:0071cb144c7a 90 {
JMF 12:0071cb144c7a 91 int ret = 0;
JMF 12:0071cb144c7a 92 const char *s = name, *c = s;
JMF 12:0071cb144c7a 93 const char *end = s + strlen( s );
JMF 12:0071cb144c7a 94 const char *oid = NULL;
JMF 12:0071cb144c7a 95 int in_tag = 1;
JMF 12:0071cb144c7a 96 char data[MBEDTLS_X509_MAX_DN_NAME_SIZE];
JMF 12:0071cb144c7a 97 char *d = data;
JMF 12:0071cb144c7a 98
JMF 12:0071cb144c7a 99 /* Clear existing chain if present */
JMF 12:0071cb144c7a 100 mbedtls_asn1_free_named_data_list( head );
JMF 12:0071cb144c7a 101
JMF 12:0071cb144c7a 102 while( c <= end )
JMF 12:0071cb144c7a 103 {
JMF 12:0071cb144c7a 104 if( in_tag && *c == '=' )
JMF 12:0071cb144c7a 105 {
JMF 12:0071cb144c7a 106 if( ( oid = x509_at_oid_from_name( s, c - s ) ) == NULL )
JMF 12:0071cb144c7a 107 {
JMF 12:0071cb144c7a 108 ret = MBEDTLS_ERR_X509_UNKNOWN_OID;
JMF 12:0071cb144c7a 109 goto exit;
JMF 12:0071cb144c7a 110 }
JMF 12:0071cb144c7a 111
JMF 12:0071cb144c7a 112 s = c + 1;
JMF 12:0071cb144c7a 113 in_tag = 0;
JMF 12:0071cb144c7a 114 d = data;
JMF 12:0071cb144c7a 115 }
JMF 12:0071cb144c7a 116
JMF 12:0071cb144c7a 117 if( !in_tag && *c == '\\' && c != end )
JMF 12:0071cb144c7a 118 {
JMF 12:0071cb144c7a 119 c++;
JMF 12:0071cb144c7a 120
JMF 12:0071cb144c7a 121 /* Check for valid escaped characters */
JMF 12:0071cb144c7a 122 if( c == end || *c != ',' )
JMF 12:0071cb144c7a 123 {
JMF 12:0071cb144c7a 124 ret = MBEDTLS_ERR_X509_INVALID_NAME;
JMF 12:0071cb144c7a 125 goto exit;
JMF 12:0071cb144c7a 126 }
JMF 12:0071cb144c7a 127 }
JMF 12:0071cb144c7a 128 else if( !in_tag && ( *c == ',' || c == end ) )
JMF 12:0071cb144c7a 129 {
JMF 12:0071cb144c7a 130 if( mbedtls_asn1_store_named_data( head, oid, strlen( oid ),
JMF 12:0071cb144c7a 131 (unsigned char *) data,
JMF 12:0071cb144c7a 132 d - data ) == NULL )
JMF 12:0071cb144c7a 133 {
JMF 12:0071cb144c7a 134 return( MBEDTLS_ERR_X509_ALLOC_FAILED );
JMF 12:0071cb144c7a 135 }
JMF 12:0071cb144c7a 136
JMF 12:0071cb144c7a 137 while( c < end && *(c + 1) == ' ' )
JMF 12:0071cb144c7a 138 c++;
JMF 12:0071cb144c7a 139
JMF 12:0071cb144c7a 140 s = c + 1;
JMF 12:0071cb144c7a 141 in_tag = 1;
JMF 12:0071cb144c7a 142 }
JMF 12:0071cb144c7a 143
JMF 12:0071cb144c7a 144 if( !in_tag && s != c + 1 )
JMF 12:0071cb144c7a 145 {
JMF 12:0071cb144c7a 146 *(d++) = *c;
JMF 12:0071cb144c7a 147
JMF 12:0071cb144c7a 148 if( d - data == MBEDTLS_X509_MAX_DN_NAME_SIZE )
JMF 12:0071cb144c7a 149 {
JMF 12:0071cb144c7a 150 ret = MBEDTLS_ERR_X509_INVALID_NAME;
JMF 12:0071cb144c7a 151 goto exit;
JMF 12:0071cb144c7a 152 }
JMF 12:0071cb144c7a 153 }
JMF 12:0071cb144c7a 154
JMF 12:0071cb144c7a 155 c++;
JMF 12:0071cb144c7a 156 }
JMF 12:0071cb144c7a 157
JMF 12:0071cb144c7a 158 exit:
JMF 12:0071cb144c7a 159
JMF 12:0071cb144c7a 160 return( ret );
JMF 12:0071cb144c7a 161 }
JMF 12:0071cb144c7a 162
JMF 12:0071cb144c7a 163 /* The first byte of the value in the mbedtls_asn1_named_data structure is reserved
JMF 12:0071cb144c7a 164 * to store the critical boolean for us
JMF 12:0071cb144c7a 165 */
JMF 12:0071cb144c7a 166 int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,
JMF 12:0071cb144c7a 167 int critical, const unsigned char *val, size_t val_len )
JMF 12:0071cb144c7a 168 {
JMF 12:0071cb144c7a 169 mbedtls_asn1_named_data *cur;
JMF 12:0071cb144c7a 170
JMF 12:0071cb144c7a 171 if( ( cur = mbedtls_asn1_store_named_data( head, oid, oid_len,
JMF 12:0071cb144c7a 172 NULL, val_len + 1 ) ) == NULL )
JMF 12:0071cb144c7a 173 {
JMF 12:0071cb144c7a 174 return( MBEDTLS_ERR_X509_ALLOC_FAILED );
JMF 12:0071cb144c7a 175 }
JMF 12:0071cb144c7a 176
JMF 12:0071cb144c7a 177 cur->val.p[0] = critical;
JMF 12:0071cb144c7a 178 memcpy( cur->val.p + 1, val, val_len );
JMF 12:0071cb144c7a 179
JMF 12:0071cb144c7a 180 return( 0 );
JMF 12:0071cb144c7a 181 }
JMF 12:0071cb144c7a 182
JMF 12:0071cb144c7a 183 /*
JMF 12:0071cb144c7a 184 * RelativeDistinguishedName ::=
JMF 12:0071cb144c7a 185 * SET OF AttributeTypeAndValue
JMF 12:0071cb144c7a 186 *
JMF 12:0071cb144c7a 187 * AttributeTypeAndValue ::= SEQUENCE {
JMF 12:0071cb144c7a 188 * type AttributeType,
JMF 12:0071cb144c7a 189 * value AttributeValue }
JMF 12:0071cb144c7a 190 *
JMF 12:0071cb144c7a 191 * AttributeType ::= OBJECT IDENTIFIER
JMF 12:0071cb144c7a 192 *
JMF 12:0071cb144c7a 193 * AttributeValue ::= ANY DEFINED BY AttributeType
JMF 12:0071cb144c7a 194 */
JMF 12:0071cb144c7a 195 static int x509_write_name( unsigned char **p, unsigned char *start,
JMF 12:0071cb144c7a 196 const char *oid, size_t oid_len,
JMF 12:0071cb144c7a 197 const unsigned char *name, size_t name_len )
JMF 12:0071cb144c7a 198 {
JMF 12:0071cb144c7a 199 int ret;
JMF 12:0071cb144c7a 200 size_t len = 0;
JMF 12:0071cb144c7a 201
JMF 12:0071cb144c7a 202 // Write PrintableString for all except MBEDTLS_OID_PKCS9_EMAIL
JMF 12:0071cb144c7a 203 //
JMF 12:0071cb144c7a 204 if( MBEDTLS_OID_SIZE( MBEDTLS_OID_PKCS9_EMAIL ) == oid_len &&
JMF 12:0071cb144c7a 205 memcmp( oid, MBEDTLS_OID_PKCS9_EMAIL, oid_len ) == 0 )
JMF 12:0071cb144c7a 206 {
JMF 12:0071cb144c7a 207 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_ia5_string( p, start,
JMF 12:0071cb144c7a 208 (const char *) name,
JMF 12:0071cb144c7a 209 name_len ) );
JMF 12:0071cb144c7a 210 }
JMF 12:0071cb144c7a 211 else
JMF 12:0071cb144c7a 212 {
JMF 12:0071cb144c7a 213 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_printable_string( p, start,
JMF 12:0071cb144c7a 214 (const char *) name,
JMF 12:0071cb144c7a 215 name_len ) );
JMF 12:0071cb144c7a 216 }
JMF 12:0071cb144c7a 217
JMF 12:0071cb144c7a 218 // Write OID
JMF 12:0071cb144c7a 219 //
JMF 12:0071cb144c7a 220 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid, oid_len ) );
JMF 12:0071cb144c7a 221
JMF 12:0071cb144c7a 222 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
JMF 12:0071cb144c7a 223 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
JMF 12:0071cb144c7a 224 MBEDTLS_ASN1_SEQUENCE ) );
JMF 12:0071cb144c7a 225
JMF 12:0071cb144c7a 226 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
JMF 12:0071cb144c7a 227 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
JMF 12:0071cb144c7a 228 MBEDTLS_ASN1_SET ) );
JMF 12:0071cb144c7a 229
JMF 12:0071cb144c7a 230 return( (int) len );
JMF 12:0071cb144c7a 231 }
JMF 12:0071cb144c7a 232
JMF 12:0071cb144c7a 233 int mbedtls_x509_write_names( unsigned char **p, unsigned char *start,
JMF 12:0071cb144c7a 234 mbedtls_asn1_named_data *first )
JMF 12:0071cb144c7a 235 {
JMF 12:0071cb144c7a 236 int ret;
JMF 12:0071cb144c7a 237 size_t len = 0;
JMF 12:0071cb144c7a 238 mbedtls_asn1_named_data *cur = first;
JMF 12:0071cb144c7a 239
JMF 12:0071cb144c7a 240 while( cur != NULL )
JMF 12:0071cb144c7a 241 {
JMF 12:0071cb144c7a 242 MBEDTLS_ASN1_CHK_ADD( len, x509_write_name( p, start, (char *) cur->oid.p,
JMF 12:0071cb144c7a 243 cur->oid.len,
JMF 12:0071cb144c7a 244 cur->val.p, cur->val.len ) );
JMF 12:0071cb144c7a 245 cur = cur->next;
JMF 12:0071cb144c7a 246 }
JMF 12:0071cb144c7a 247
JMF 12:0071cb144c7a 248 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
JMF 12:0071cb144c7a 249 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
JMF 12:0071cb144c7a 250 MBEDTLS_ASN1_SEQUENCE ) );
JMF 12:0071cb144c7a 251
JMF 12:0071cb144c7a 252 return( (int) len );
JMF 12:0071cb144c7a 253 }
JMF 12:0071cb144c7a 254
JMF 12:0071cb144c7a 255 int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start,
JMF 12:0071cb144c7a 256 const char *oid, size_t oid_len,
JMF 12:0071cb144c7a 257 unsigned char *sig, size_t size )
JMF 12:0071cb144c7a 258 {
JMF 12:0071cb144c7a 259 int ret;
JMF 12:0071cb144c7a 260 size_t len = 0;
JMF 12:0071cb144c7a 261
JMF 12:0071cb144c7a 262 if( *p < start || (size_t)( *p - start ) < size )
JMF 12:0071cb144c7a 263 return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
JMF 12:0071cb144c7a 264
JMF 12:0071cb144c7a 265 len = size;
JMF 12:0071cb144c7a 266 (*p) -= len;
JMF 12:0071cb144c7a 267 memcpy( *p, sig, len );
JMF 12:0071cb144c7a 268
JMF 12:0071cb144c7a 269 if( *p - start < 1 )
JMF 12:0071cb144c7a 270 return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
JMF 12:0071cb144c7a 271
JMF 12:0071cb144c7a 272 *--(*p) = 0;
JMF 12:0071cb144c7a 273 len += 1;
JMF 12:0071cb144c7a 274
JMF 12:0071cb144c7a 275 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
JMF 12:0071cb144c7a 276 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BIT_STRING ) );
JMF 12:0071cb144c7a 277
JMF 12:0071cb144c7a 278 // Write OID
JMF 12:0071cb144c7a 279 //
JMF 12:0071cb144c7a 280 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( p, start, oid,
JMF 12:0071cb144c7a 281 oid_len, 0 ) );
JMF 12:0071cb144c7a 282
JMF 12:0071cb144c7a 283 return( (int) len );
JMF 12:0071cb144c7a 284 }
JMF 12:0071cb144c7a 285
JMF 12:0071cb144c7a 286 static int x509_write_extension( unsigned char **p, unsigned char *start,
JMF 12:0071cb144c7a 287 mbedtls_asn1_named_data *ext )
JMF 12:0071cb144c7a 288 {
JMF 12:0071cb144c7a 289 int ret;
JMF 12:0071cb144c7a 290 size_t len = 0;
JMF 12:0071cb144c7a 291
JMF 12:0071cb144c7a 292 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->val.p + 1,
JMF 12:0071cb144c7a 293 ext->val.len - 1 ) );
JMF 12:0071cb144c7a 294 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->val.len - 1 ) );
JMF 12:0071cb144c7a 295 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OCTET_STRING ) );
JMF 12:0071cb144c7a 296
JMF 12:0071cb144c7a 297 if( ext->val.p[0] != 0 )
JMF 12:0071cb144c7a 298 {
JMF 12:0071cb144c7a 299 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( p, start, 1 ) );
JMF 12:0071cb144c7a 300 }
JMF 12:0071cb144c7a 301
JMF 12:0071cb144c7a 302 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->oid.p,
JMF 12:0071cb144c7a 303 ext->oid.len ) );
JMF 12:0071cb144c7a 304 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->oid.len ) );
JMF 12:0071cb144c7a 305 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OID ) );
JMF 12:0071cb144c7a 306
JMF 12:0071cb144c7a 307 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
JMF 12:0071cb144c7a 308 MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
JMF 12:0071cb144c7a 309 MBEDTLS_ASN1_SEQUENCE ) );
JMF 12:0071cb144c7a 310
JMF 12:0071cb144c7a 311 return( (int) len );
JMF 12:0071cb144c7a 312 }
JMF 12:0071cb144c7a 313
JMF 12:0071cb144c7a 314 /*
JMF 12:0071cb144c7a 315 * Extension ::= SEQUENCE {
JMF 12:0071cb144c7a 316 * extnID OBJECT IDENTIFIER,
JMF 12:0071cb144c7a 317 * critical BOOLEAN DEFAULT FALSE,
JMF 12:0071cb144c7a 318 * extnValue OCTET STRING
JMF 12:0071cb144c7a 319 * -- contains the DER encoding of an ASN.1 value
JMF 12:0071cb144c7a 320 * -- corresponding to the extension type identified
JMF 12:0071cb144c7a 321 * -- by extnID
JMF 12:0071cb144c7a 322 * }
JMF 12:0071cb144c7a 323 */
JMF 12:0071cb144c7a 324 int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start,
JMF 12:0071cb144c7a 325 mbedtls_asn1_named_data *first )
JMF 12:0071cb144c7a 326 {
JMF 12:0071cb144c7a 327 int ret;
JMF 12:0071cb144c7a 328 size_t len = 0;
JMF 12:0071cb144c7a 329 mbedtls_asn1_named_data *cur_ext = first;
JMF 12:0071cb144c7a 330
JMF 12:0071cb144c7a 331 while( cur_ext != NULL )
JMF 12:0071cb144c7a 332 {
JMF 12:0071cb144c7a 333 MBEDTLS_ASN1_CHK_ADD( len, x509_write_extension( p, start, cur_ext ) );
JMF 12:0071cb144c7a 334 cur_ext = cur_ext->next;
JMF 12:0071cb144c7a 335 }
JMF 12:0071cb144c7a 336
JMF 12:0071cb144c7a 337 return( (int) len );
JMF 12:0071cb144c7a 338 }
JMF 12:0071cb144c7a 339
JMF 12:0071cb144c7a 340 #endif /* MBEDTLS_X509_CREATE_C */