1 /* $OpenBSD: x509_info.c,v 1.5 2024/07/13 15:08:58 tb 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 #include <string.h> 61 62 #include <openssl/asn1.h> 63 #include <openssl/asn1t.h> 64 #include <openssl/conf.h> 65 #include <openssl/err.h> 66 #include <openssl/x509v3.h> 67 68 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS( 69 X509V3_EXT_METHOD *method, AUTHORITY_INFO_ACCESS *ainfo, 70 STACK_OF(CONF_VALUE) *ret); 71 static AUTHORITY_INFO_ACCESS *v2i_AUTHORITY_INFO_ACCESS( 72 X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval); 73 74 static const X509V3_EXT_METHOD x509v3_ext_info_access = { 75 .ext_nid = NID_info_access, 76 .ext_flags = X509V3_EXT_MULTILINE, 77 .it = &AUTHORITY_INFO_ACCESS_it, 78 .ext_new = NULL, 79 .ext_free = NULL, 80 .d2i = NULL, 81 .i2d = NULL, 82 .i2s = NULL, 83 .s2i = NULL, 84 .i2v = (X509V3_EXT_I2V)i2v_AUTHORITY_INFO_ACCESS, 85 .v2i = (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS, 86 .i2r = NULL, 87 .r2i = NULL, 88 .usr_data = NULL, 89 }; 90 91 const X509V3_EXT_METHOD * 92 x509v3_ext_method_info_access(void) 93 { 94 return &x509v3_ext_info_access; 95 } 96 97 static const X509V3_EXT_METHOD x509v3_ext_sinfo_access = { 98 .ext_nid = NID_sinfo_access, 99 .ext_flags = X509V3_EXT_MULTILINE, 100 .it = &AUTHORITY_INFO_ACCESS_it, 101 .ext_new = NULL, 102 .ext_free = NULL, 103 .d2i = NULL, 104 .i2d = NULL, 105 .i2s = NULL, 106 .s2i = NULL, 107 .i2v = (X509V3_EXT_I2V)i2v_AUTHORITY_INFO_ACCESS, 108 .v2i = (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS, 109 .i2r = NULL, 110 .r2i = NULL, 111 .usr_data = NULL, 112 }; 113 114 const X509V3_EXT_METHOD * 115 x509v3_ext_method_sinfo_access(void) 116 { 117 return &x509v3_ext_sinfo_access; 118 } 119 120 static const ASN1_TEMPLATE ACCESS_DESCRIPTION_seq_tt[] = { 121 { 122 .flags = 0, 123 .tag = 0, 124 .offset = offsetof(ACCESS_DESCRIPTION, method), 125 .field_name = "method", 126 .item = &ASN1_OBJECT_it, 127 }, 128 { 129 .flags = 0, 130 .tag = 0, 131 .offset = offsetof(ACCESS_DESCRIPTION, location), 132 .field_name = "location", 133 .item = &GENERAL_NAME_it, 134 }, 135 }; 136 137 const ASN1_ITEM ACCESS_DESCRIPTION_it = { 138 .itype = ASN1_ITYPE_SEQUENCE, 139 .utype = V_ASN1_SEQUENCE, 140 .templates = ACCESS_DESCRIPTION_seq_tt, 141 .tcount = sizeof(ACCESS_DESCRIPTION_seq_tt) / sizeof(ASN1_TEMPLATE), 142 .funcs = NULL, 143 .size = sizeof(ACCESS_DESCRIPTION), 144 .sname = "ACCESS_DESCRIPTION", 145 }; 146 LCRYPTO_ALIAS(ACCESS_DESCRIPTION_it); 147 148 149 ACCESS_DESCRIPTION * 150 d2i_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION **a, const unsigned char **in, long len) 151 { 152 return (ACCESS_DESCRIPTION *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, 153 &ACCESS_DESCRIPTION_it); 154 } 155 LCRYPTO_ALIAS(d2i_ACCESS_DESCRIPTION); 156 157 int 158 i2d_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION *a, unsigned char **out) 159 { 160 return ASN1_item_i2d((ASN1_VALUE *)a, out, &ACCESS_DESCRIPTION_it); 161 } 162 LCRYPTO_ALIAS(i2d_ACCESS_DESCRIPTION); 163 164 ACCESS_DESCRIPTION * 165 ACCESS_DESCRIPTION_new(void) 166 { 167 return (ACCESS_DESCRIPTION *)ASN1_item_new(&ACCESS_DESCRIPTION_it); 168 } 169 LCRYPTO_ALIAS(ACCESS_DESCRIPTION_new); 170 171 void 172 ACCESS_DESCRIPTION_free(ACCESS_DESCRIPTION *a) 173 { 174 ASN1_item_free((ASN1_VALUE *)a, &ACCESS_DESCRIPTION_it); 175 } 176 LCRYPTO_ALIAS(ACCESS_DESCRIPTION_free); 177 178 static const ASN1_TEMPLATE AUTHORITY_INFO_ACCESS_item_tt = { 179 .flags = ASN1_TFLG_SEQUENCE_OF, 180 .tag = 0, 181 .offset = 0, 182 .field_name = "GeneralNames", 183 .item = &ACCESS_DESCRIPTION_it, 184 }; 185 186 const ASN1_ITEM AUTHORITY_INFO_ACCESS_it = { 187 .itype = ASN1_ITYPE_PRIMITIVE, 188 .utype = -1, 189 .templates = &AUTHORITY_INFO_ACCESS_item_tt, 190 .tcount = 0, 191 .funcs = NULL, 192 .size = 0, 193 .sname = "AUTHORITY_INFO_ACCESS", 194 }; 195 LCRYPTO_ALIAS(AUTHORITY_INFO_ACCESS_it); 196 197 198 AUTHORITY_INFO_ACCESS * 199 d2i_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS **a, const unsigned char **in, long len) 200 { 201 return (AUTHORITY_INFO_ACCESS *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, 202 &AUTHORITY_INFO_ACCESS_it); 203 } 204 LCRYPTO_ALIAS(d2i_AUTHORITY_INFO_ACCESS); 205 206 int 207 i2d_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS *a, unsigned char **out) 208 { 209 return ASN1_item_i2d((ASN1_VALUE *)a, out, &AUTHORITY_INFO_ACCESS_it); 210 } 211 LCRYPTO_ALIAS(i2d_AUTHORITY_INFO_ACCESS); 212 213 AUTHORITY_INFO_ACCESS * 214 AUTHORITY_INFO_ACCESS_new(void) 215 { 216 return (AUTHORITY_INFO_ACCESS *)ASN1_item_new(&AUTHORITY_INFO_ACCESS_it); 217 } 218 LCRYPTO_ALIAS(AUTHORITY_INFO_ACCESS_new); 219 220 void 221 AUTHORITY_INFO_ACCESS_free(AUTHORITY_INFO_ACCESS *a) 222 { 223 ASN1_item_free((ASN1_VALUE *)a, &AUTHORITY_INFO_ACCESS_it); 224 } 225 LCRYPTO_ALIAS(AUTHORITY_INFO_ACCESS_free); 226 227 static STACK_OF(CONF_VALUE) * 228 i2v_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD *method, 229 AUTHORITY_INFO_ACCESS *ainfo, STACK_OF(CONF_VALUE) *ret) 230 { 231 ACCESS_DESCRIPTION *desc; 232 CONF_VALUE *vtmp; 233 STACK_OF(CONF_VALUE) *free_ret = NULL; 234 char objtmp[80], *ntmp; 235 int i; 236 237 if (ret == NULL) { 238 if ((free_ret = ret = sk_CONF_VALUE_new_null()) == NULL) 239 return NULL; 240 } 241 242 for (i = 0; i < sk_ACCESS_DESCRIPTION_num(ainfo); i++) { 243 if ((desc = sk_ACCESS_DESCRIPTION_value(ainfo, i)) == NULL) 244 goto err; 245 if ((ret = i2v_GENERAL_NAME(method, desc->location, 246 ret)) == NULL) 247 goto err; 248 if ((vtmp = sk_CONF_VALUE_value(ret, i)) == NULL) 249 goto err; 250 if (!i2t_ASN1_OBJECT(objtmp, sizeof objtmp, desc->method)) 251 goto err; 252 if (asprintf(&ntmp, "%s - %s", objtmp, vtmp->name) == -1) { 253 ntmp = NULL; 254 X509V3error(ERR_R_MALLOC_FAILURE); 255 goto err; 256 } 257 free(vtmp->name); 258 vtmp->name = ntmp; 259 } 260 261 return ret; 262 263 err: 264 sk_CONF_VALUE_pop_free(free_ret, X509V3_conf_free); 265 266 return NULL; 267 } 268 269 static AUTHORITY_INFO_ACCESS * 270 v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 271 STACK_OF(CONF_VALUE) *nval) 272 { 273 AUTHORITY_INFO_ACCESS *ainfo = NULL; 274 CONF_VALUE *cnf, ctmp; 275 ACCESS_DESCRIPTION *acc; 276 int i, objlen; 277 char *objtmp, *ptmp; 278 279 if (!(ainfo = sk_ACCESS_DESCRIPTION_new_null())) { 280 X509V3error(ERR_R_MALLOC_FAILURE); 281 return NULL; 282 } 283 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { 284 cnf = sk_CONF_VALUE_value(nval, i); 285 if ((acc = ACCESS_DESCRIPTION_new()) == NULL) { 286 X509V3error(ERR_R_MALLOC_FAILURE); 287 goto err; 288 } 289 if (sk_ACCESS_DESCRIPTION_push(ainfo, acc) == 0) { 290 ACCESS_DESCRIPTION_free(acc); 291 X509V3error(ERR_R_MALLOC_FAILURE); 292 goto err; 293 } 294 ptmp = strchr(cnf->name, ';'); 295 if (!ptmp) { 296 X509V3error(X509V3_R_INVALID_SYNTAX); 297 goto err; 298 } 299 objlen = ptmp - cnf->name; 300 ctmp.name = ptmp + 1; 301 ctmp.value = cnf->value; 302 if (!v2i_GENERAL_NAME_ex(acc->location, method, ctx, &ctmp, 0)) 303 goto err; 304 if (!(objtmp = malloc(objlen + 1))) { 305 X509V3error(ERR_R_MALLOC_FAILURE); 306 goto err; 307 } 308 strlcpy(objtmp, cnf->name, objlen + 1); 309 acc->method = OBJ_txt2obj(objtmp, 0); 310 if (!acc->method) { 311 X509V3error(X509V3_R_BAD_OBJECT); 312 ERR_asprintf_error_data("value=%s", objtmp); 313 free(objtmp); 314 goto err; 315 } 316 free(objtmp); 317 } 318 return ainfo; 319 320 err: 321 sk_ACCESS_DESCRIPTION_pop_free(ainfo, ACCESS_DESCRIPTION_free); 322 return NULL; 323 } 324 325 int 326 i2a_ACCESS_DESCRIPTION(BIO *bp, const ACCESS_DESCRIPTION* a) 327 { 328 i2a_ASN1_OBJECT(bp, a->method); 329 return 2; 330 } 331 LCRYPTO_ALIAS(i2a_ACCESS_DESCRIPTION); 332