1 /* $OpenBSD: x_x509a.c,v 1.22 2024/04/09 13:55:02 beck Exp $ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project 1999. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 1999 The OpenSSL Project. 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 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. All advertising materials mentioning features or use of this 21 * software must display the following acknowledgment: 22 * "This product includes software developed by the OpenSSL Project 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24 * 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26 * endorse or promote products derived from this software without 27 * prior written permission. For written permission, please contact 28 * licensing@OpenSSL.org. 29 * 30 * 5. Products derived from this software may not be called "OpenSSL" 31 * nor may "OpenSSL" appear in their names without prior written 32 * permission of the OpenSSL Project. 33 * 34 * 6. Redistributions of any form whatsoever must retain the following 35 * acknowledgment: 36 * "This product includes software developed by the OpenSSL Project 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50 * OF THE POSSIBILITY OF SUCH DAMAGE. 51 * ==================================================================== 52 * 53 * This product includes cryptographic software written by Eric Young 54 * (eay@cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh@cryptsoft.com). 56 * 57 */ 58 59 #include <stdio.h> 60 61 #include <openssl/asn1t.h> 62 #include <openssl/evp.h> 63 #include <openssl/x509.h> 64 65 #include "x509_local.h" 66 67 /* X509_CERT_AUX routines. These are used to encode additional 68 * user modifiable data about a certificate. This data is 69 * appended to the X509 encoding when the *_X509_AUX routines 70 * are used. This means that the "traditional" X509 routines 71 * will simply ignore the extra data. 72 */ 73 74 static X509_CERT_AUX *aux_get(X509 *x); 75 76 static const ASN1_TEMPLATE X509_CERT_AUX_seq_tt[] = { 77 { 78 .flags = ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_OPTIONAL, 79 .offset = offsetof(X509_CERT_AUX, trust), 80 .field_name = "trust", 81 .item = &ASN1_OBJECT_it, 82 }, 83 { 84 .flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_SEQUENCE_OF | 85 ASN1_TFLG_OPTIONAL, 86 .tag = 0, 87 .offset = offsetof(X509_CERT_AUX, reject), 88 .field_name = "reject", 89 .item = &ASN1_OBJECT_it, 90 }, 91 { 92 .flags = ASN1_TFLG_OPTIONAL, 93 .offset = offsetof(X509_CERT_AUX, alias), 94 .field_name = "alias", 95 .item = &ASN1_UTF8STRING_it, 96 }, 97 { 98 .flags = ASN1_TFLG_OPTIONAL, 99 .offset = offsetof(X509_CERT_AUX, keyid), 100 .field_name = "keyid", 101 .item = &ASN1_OCTET_STRING_it, 102 }, 103 { 104 .flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_SEQUENCE_OF | 105 ASN1_TFLG_OPTIONAL, 106 .tag = 1, 107 .offset = offsetof(X509_CERT_AUX, other), 108 .field_name = "other", 109 .item = &X509_ALGOR_it, 110 }, 111 }; 112 113 const ASN1_ITEM X509_CERT_AUX_it = { 114 .itype = ASN1_ITYPE_SEQUENCE, 115 .utype = V_ASN1_SEQUENCE, 116 .templates = X509_CERT_AUX_seq_tt, 117 .tcount = sizeof(X509_CERT_AUX_seq_tt) / sizeof(ASN1_TEMPLATE), 118 .size = sizeof(X509_CERT_AUX), 119 .sname = "X509_CERT_AUX", 120 }; 121 122 123 X509_CERT_AUX * 124 d2i_X509_CERT_AUX(X509_CERT_AUX **a, const unsigned char **in, long len) 125 { 126 return (X509_CERT_AUX *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, 127 &X509_CERT_AUX_it); 128 } 129 130 int 131 i2d_X509_CERT_AUX(X509_CERT_AUX *a, unsigned char **out) 132 { 133 return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_CERT_AUX_it); 134 } 135 136 X509_CERT_AUX * 137 X509_CERT_AUX_new(void) 138 { 139 return (X509_CERT_AUX *)ASN1_item_new(&X509_CERT_AUX_it); 140 } 141 142 void 143 X509_CERT_AUX_free(X509_CERT_AUX *a) 144 { 145 ASN1_item_free((ASN1_VALUE *)a, &X509_CERT_AUX_it); 146 } 147 148 static X509_CERT_AUX * 149 aux_get(X509 *x) 150 { 151 if (!x) 152 return NULL; 153 if (!x->aux && !(x->aux = X509_CERT_AUX_new())) 154 return NULL; 155 return x->aux; 156 } 157 158 int 159 X509_alias_set1(X509 *x, const unsigned char *name, int len) 160 { 161 X509_CERT_AUX *aux; 162 if (!name) { 163 if (!x || !x->aux || !x->aux->alias) 164 return 1; 165 ASN1_UTF8STRING_free(x->aux->alias); 166 x->aux->alias = NULL; 167 return 1; 168 } 169 if (!(aux = aux_get(x))) 170 return 0; 171 if (!aux->alias && !(aux->alias = ASN1_UTF8STRING_new())) 172 return 0; 173 return ASN1_STRING_set(aux->alias, name, len); 174 } 175 LCRYPTO_ALIAS(X509_alias_set1); 176 177 int 178 X509_keyid_set1(X509 *x, const unsigned char *id, int len) 179 { 180 X509_CERT_AUX *aux; 181 if (!id) { 182 if (!x || !x->aux || !x->aux->keyid) 183 return 1; 184 ASN1_OCTET_STRING_free(x->aux->keyid); 185 x->aux->keyid = NULL; 186 return 1; 187 } 188 if (!(aux = aux_get(x))) 189 return 0; 190 if (!aux->keyid && !(aux->keyid = ASN1_OCTET_STRING_new())) 191 return 0; 192 return ASN1_STRING_set(aux->keyid, id, len); 193 } 194 LCRYPTO_ALIAS(X509_keyid_set1); 195 196 unsigned char * 197 X509_alias_get0(X509 *x, int *len) 198 { 199 if (!x->aux || !x->aux->alias) 200 return NULL; 201 if (len) 202 *len = x->aux->alias->length; 203 return x->aux->alias->data; 204 } 205 LCRYPTO_ALIAS(X509_alias_get0); 206 207 unsigned char * 208 X509_keyid_get0(X509 *x, int *len) 209 { 210 if (!x->aux || !x->aux->keyid) 211 return NULL; 212 if (len) 213 *len = x->aux->keyid->length; 214 return x->aux->keyid->data; 215 } 216 LCRYPTO_ALIAS(X509_keyid_get0); 217 218 int 219 X509_add1_trust_object(X509 *x, const ASN1_OBJECT *obj) 220 { 221 X509_CERT_AUX *aux; 222 ASN1_OBJECT *objtmp; 223 int rc; 224 225 if (!(objtmp = OBJ_dup(obj))) 226 return 0; 227 if (!(aux = aux_get(x))) 228 goto err; 229 if (!aux->trust && !(aux->trust = sk_ASN1_OBJECT_new_null())) 230 goto err; 231 rc = sk_ASN1_OBJECT_push(aux->trust, objtmp); 232 if (rc != 0) 233 return rc; 234 235 err: 236 ASN1_OBJECT_free(objtmp); 237 return 0; 238 } 239 LCRYPTO_ALIAS(X509_add1_trust_object); 240 241 int 242 X509_add1_reject_object(X509 *x, const ASN1_OBJECT *obj) 243 { 244 X509_CERT_AUX *aux; 245 ASN1_OBJECT *objtmp; 246 int rc; 247 248 if (!(objtmp = OBJ_dup(obj))) 249 return 0; 250 if (!(aux = aux_get(x))) 251 goto err; 252 if (!aux->reject && !(aux->reject = sk_ASN1_OBJECT_new_null())) 253 goto err; 254 rc = sk_ASN1_OBJECT_push(aux->reject, objtmp); 255 if (rc != 0) 256 return rc; 257 258 err: 259 ASN1_OBJECT_free(objtmp); 260 return 0; 261 } 262 LCRYPTO_ALIAS(X509_add1_reject_object); 263 264 void 265 X509_trust_clear(X509 *x) 266 { 267 if (x->aux && x->aux->trust) { 268 sk_ASN1_OBJECT_pop_free(x->aux->trust, ASN1_OBJECT_free); 269 x->aux->trust = NULL; 270 } 271 } 272 LCRYPTO_ALIAS(X509_trust_clear); 273 274 void 275 X509_reject_clear(X509 *x) 276 { 277 if (x->aux && x->aux->reject) { 278 sk_ASN1_OBJECT_pop_free(x->aux->reject, ASN1_OBJECT_free); 279 x->aux->reject = NULL; 280 } 281 } 282 LCRYPTO_ALIAS(X509_reject_clear); 283