1 /* $OpenBSD: x509_alt.c,v 1.14 2022/11/14 17:48:50 beck Exp $ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 1999-2003 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/conf.h> 63 #include <openssl/err.h> 64 #include <openssl/x509v3.h> 65 66 #include "x509_internal.h" 67 68 static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method, 69 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval); 70 static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method, 71 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval); 72 static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p); 73 static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens); 74 static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx); 75 static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx); 76 77 const X509V3_EXT_METHOD v3_alt[] = { 78 { 79 .ext_nid = NID_subject_alt_name, 80 .ext_flags = 0, 81 .it = &GENERAL_NAMES_it, 82 .ext_new = NULL, 83 .ext_free = NULL, 84 .d2i = NULL, 85 .i2d = NULL, 86 .i2s = NULL, 87 .s2i = NULL, 88 .i2v = (X509V3_EXT_I2V)i2v_GENERAL_NAMES, 89 .v2i = (X509V3_EXT_V2I)v2i_subject_alt, 90 .i2r = NULL, 91 .r2i = NULL, 92 .usr_data = NULL, 93 }, 94 { 95 .ext_nid = NID_issuer_alt_name, 96 .ext_flags = 0, 97 .it = &GENERAL_NAMES_it, 98 .ext_new = NULL, 99 .ext_free = NULL, 100 .d2i = NULL, 101 .i2d = NULL, 102 .i2s = NULL, 103 .s2i = NULL, 104 .i2v = (X509V3_EXT_I2V)i2v_GENERAL_NAMES, 105 .v2i = (X509V3_EXT_V2I)v2i_issuer_alt, 106 .i2r = NULL, 107 .r2i = NULL, 108 .usr_data = NULL, 109 }, 110 { 111 .ext_nid = NID_certificate_issuer, 112 .ext_flags = 0, 113 .it = &GENERAL_NAMES_it, 114 .ext_new = NULL, 115 .ext_free = NULL, 116 .d2i = NULL, 117 .i2d = NULL, 118 .i2s = NULL, 119 .s2i = NULL, 120 .i2v = (X509V3_EXT_I2V)i2v_GENERAL_NAMES, 121 .v2i = NULL, 122 .i2r = NULL, 123 .r2i = NULL, 124 .usr_data = NULL, 125 }, 126 }; 127 128 STACK_OF(CONF_VALUE) * 129 i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method, GENERAL_NAMES *gens, 130 STACK_OF(CONF_VALUE) *ret) 131 { 132 STACK_OF(CONF_VALUE) *free_ret = NULL; 133 GENERAL_NAME *gen; 134 int i; 135 136 if (ret == NULL) { 137 if ((free_ret = ret = sk_CONF_VALUE_new_null()) == NULL) 138 return NULL; 139 } 140 141 for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) { 142 if ((gen = sk_GENERAL_NAME_value(gens, i)) == NULL) 143 goto err; 144 if ((ret = i2v_GENERAL_NAME(method, gen, ret)) == NULL) 145 goto err; 146 } 147 148 return ret; 149 150 err: 151 sk_CONF_VALUE_pop_free(free_ret, X509V3_conf_free); 152 153 return NULL; 154 } 155 LCRYPTO_ALIAS(i2v_GENERAL_NAMES) 156 157 STACK_OF(CONF_VALUE) * 158 i2v_GENERAL_NAME(X509V3_EXT_METHOD *method, GENERAL_NAME *gen, 159 STACK_OF(CONF_VALUE) *ret) 160 { 161 STACK_OF(CONF_VALUE) *free_ret = NULL; 162 unsigned char *p; 163 char oline[256], htmp[5]; 164 int i; 165 166 if (ret == NULL) { 167 if ((free_ret = ret = sk_CONF_VALUE_new_null()) == NULL) 168 return NULL; 169 } 170 171 switch (gen->type) { 172 case GEN_OTHERNAME: 173 if (!X509V3_add_value("othername", "<unsupported>", &ret)) 174 goto err; 175 break; 176 177 case GEN_X400: 178 if (!X509V3_add_value("X400Name", "<unsupported>", &ret)) 179 goto err; 180 break; 181 182 case GEN_EDIPARTY: 183 if (!X509V3_add_value("EdiPartyName", "<unsupported>", &ret)) 184 goto err; 185 break; 186 187 case GEN_EMAIL: 188 if (!X509V3_add_value_uchar("email", gen->d.ia5->data, &ret)) 189 goto err; 190 break; 191 192 case GEN_DNS: 193 if (!X509V3_add_value_uchar("DNS", gen->d.ia5->data, &ret)) 194 goto err; 195 break; 196 197 case GEN_URI: 198 if (!X509V3_add_value_uchar("URI", gen->d.ia5->data, &ret)) 199 goto err; 200 break; 201 202 case GEN_DIRNAME: 203 if (X509_NAME_oneline(gen->d.dirn, oline, 256) == NULL) 204 goto err; 205 if (!X509V3_add_value("DirName", oline, &ret)) 206 goto err; 207 break; 208 209 case GEN_IPADD: /* XXX */ 210 p = gen->d.ip->data; 211 if (gen->d.ip->length == 4) 212 (void) snprintf(oline, sizeof oline, 213 "%d.%d.%d.%d", p[0], p[1], p[2], p[3]); 214 else if (gen->d.ip->length == 16) { 215 oline[0] = 0; 216 for (i = 0; i < 8; i++) { 217 (void) snprintf(htmp, sizeof htmp, 218 "%X", p[0] << 8 | p[1]); 219 p += 2; 220 strlcat(oline, htmp, sizeof(oline)); 221 if (i != 7) 222 strlcat(oline, ":", sizeof(oline)); 223 } 224 } else { 225 if (!X509V3_add_value("IP Address", "<invalid>", &ret)) 226 goto err; 227 break; 228 } 229 if (!X509V3_add_value("IP Address", oline, &ret)) 230 goto err; 231 break; 232 233 case GEN_RID: 234 if (!i2t_ASN1_OBJECT(oline, 256, gen->d.rid)) 235 goto err; 236 if (!X509V3_add_value("Registered ID", oline, &ret)) 237 goto err; 238 break; 239 } 240 241 return ret; 242 243 err: 244 sk_CONF_VALUE_pop_free(free_ret, X509V3_conf_free); 245 246 return NULL; 247 } 248 LCRYPTO_ALIAS(i2v_GENERAL_NAME) 249 250 int 251 GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen) 252 { 253 unsigned char *p; 254 int i; 255 256 switch (gen->type) { 257 case GEN_OTHERNAME: 258 BIO_printf(out, "othername:<unsupported>"); 259 break; 260 261 case GEN_X400: 262 BIO_printf(out, "X400Name:<unsupported>"); 263 break; 264 265 case GEN_EDIPARTY: 266 /* Maybe fix this: it is supported now */ 267 BIO_printf(out, "EdiPartyName:<unsupported>"); 268 break; 269 270 case GEN_EMAIL: 271 BIO_printf(out, "email:%.*s", gen->d.ia5->length, 272 gen->d.ia5->data); 273 break; 274 275 case GEN_DNS: 276 BIO_printf(out, "DNS:%.*s", gen->d.ia5->length, 277 gen->d.ia5->data); 278 break; 279 280 case GEN_URI: 281 BIO_printf(out, "URI:%.*s", gen->d.ia5->length, 282 gen->d.ia5->data); 283 break; 284 285 case GEN_DIRNAME: 286 BIO_printf(out, "DirName: "); 287 X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE); 288 break; 289 290 case GEN_IPADD: 291 p = gen->d.ip->data; 292 if (gen->d.ip->length == 4) 293 BIO_printf(out, "IP Address:%d.%d.%d.%d", 294 p[0], p[1], p[2], p[3]); 295 else if (gen->d.ip->length == 16) { 296 BIO_printf(out, "IP Address"); 297 for (i = 0; i < 8; i++) { 298 BIO_printf(out, ":%X", p[0] << 8 | p[1]); 299 p += 2; 300 } 301 BIO_puts(out, "\n"); 302 } else { 303 BIO_printf(out, "IP Address:<invalid>"); 304 break; 305 } 306 break; 307 308 case GEN_RID: 309 BIO_printf(out, "Registered ID"); 310 i2a_ASN1_OBJECT(out, gen->d.rid); 311 break; 312 } 313 return 1; 314 } 315 LCRYPTO_ALIAS(GENERAL_NAME_print) 316 317 static GENERAL_NAMES * 318 v2i_issuer_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 319 STACK_OF(CONF_VALUE) *nval) 320 { 321 GENERAL_NAMES *gens = NULL; 322 CONF_VALUE *cnf; 323 int i; 324 325 if ((gens = sk_GENERAL_NAME_new_null()) == NULL) { 326 X509V3error(ERR_R_MALLOC_FAILURE); 327 return NULL; 328 } 329 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { 330 cnf = sk_CONF_VALUE_value(nval, i); 331 if (name_cmp(cnf->name, "issuer") == 0 && cnf->value != NULL && 332 strcmp(cnf->value, "copy") == 0) { 333 if (!copy_issuer(ctx, gens)) 334 goto err; 335 } else { 336 GENERAL_NAME *gen; 337 if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL) 338 goto err; 339 if (sk_GENERAL_NAME_push(gens, gen) == 0) { 340 GENERAL_NAME_free(gen); 341 goto err; 342 } 343 } 344 } 345 return gens; 346 347 err: 348 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free); 349 return NULL; 350 } 351 352 /* Append subject altname of issuer to issuer alt name of subject */ 353 354 static int 355 copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens) 356 { 357 GENERAL_NAMES *ialt; 358 GENERAL_NAME *gen; 359 X509_EXTENSION *ext; 360 int i; 361 362 if (ctx && (ctx->flags == CTX_TEST)) 363 return 1; 364 if (!ctx || !ctx->issuer_cert) { 365 X509V3error(X509V3_R_NO_ISSUER_DETAILS); 366 goto err; 367 } 368 i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1); 369 if (i < 0) 370 return 1; 371 if (!(ext = X509_get_ext(ctx->issuer_cert, i)) || 372 !(ialt = X509V3_EXT_d2i(ext))) { 373 X509V3error(X509V3_R_ISSUER_DECODE_ERROR); 374 goto err; 375 } 376 377 for (i = 0; i < sk_GENERAL_NAME_num(ialt); i++) { 378 gen = sk_GENERAL_NAME_value(ialt, i); 379 if (!sk_GENERAL_NAME_push(gens, gen)) { 380 X509V3error(ERR_R_MALLOC_FAILURE); 381 goto err; 382 } 383 } 384 sk_GENERAL_NAME_free(ialt); 385 386 return 1; 387 388 err: 389 return 0; 390 391 } 392 393 static GENERAL_NAMES * 394 v2i_subject_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 395 STACK_OF(CONF_VALUE) *nval) 396 { 397 GENERAL_NAMES *gens = NULL; 398 CONF_VALUE *cnf; 399 int i; 400 401 if (!(gens = sk_GENERAL_NAME_new_null())) { 402 X509V3error(ERR_R_MALLOC_FAILURE); 403 return NULL; 404 } 405 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { 406 cnf = sk_CONF_VALUE_value(nval, i); 407 if (!name_cmp(cnf->name, "email") && cnf->value && 408 !strcmp(cnf->value, "copy")) { 409 if (!copy_email(ctx, gens, 0)) 410 goto err; 411 } else if (!name_cmp(cnf->name, "email") && cnf->value && 412 !strcmp(cnf->value, "move")) { 413 if (!copy_email(ctx, gens, 1)) 414 goto err; 415 } else { 416 GENERAL_NAME *gen; 417 if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) 418 goto err; 419 if (sk_GENERAL_NAME_push(gens, gen) == 0) { 420 GENERAL_NAME_free(gen); 421 goto err; 422 } 423 } 424 } 425 return gens; 426 427 err: 428 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free); 429 return NULL; 430 } 431 432 /* Copy any email addresses in a certificate or request to 433 * GENERAL_NAMES 434 */ 435 436 static int 437 copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p) 438 { 439 X509_NAME *nm; 440 ASN1_IA5STRING *email = NULL; 441 X509_NAME_ENTRY *ne; 442 GENERAL_NAME *gen = NULL; 443 int i; 444 445 if (ctx != NULL && ctx->flags == CTX_TEST) 446 return 1; 447 if (!ctx || (!ctx->subject_cert && !ctx->subject_req)) { 448 X509V3error(X509V3_R_NO_SUBJECT_DETAILS); 449 goto err; 450 } 451 /* Find the subject name */ 452 if (ctx->subject_cert) 453 nm = X509_get_subject_name(ctx->subject_cert); 454 else 455 nm = X509_REQ_get_subject_name(ctx->subject_req); 456 457 /* Now add any email address(es) to STACK */ 458 i = -1; 459 while ((i = X509_NAME_get_index_by_NID(nm, 460 NID_pkcs9_emailAddress, i)) >= 0) { 461 ne = X509_NAME_get_entry(nm, i); 462 email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne)); 463 if (move_p) { 464 X509_NAME_delete_entry(nm, i); 465 X509_NAME_ENTRY_free(ne); 466 i--; 467 } 468 if (!email || !(gen = GENERAL_NAME_new())) { 469 X509V3error(ERR_R_MALLOC_FAILURE); 470 goto err; 471 } 472 gen->d.ia5 = email; 473 email = NULL; 474 gen->type = GEN_EMAIL; 475 if (!sk_GENERAL_NAME_push(gens, gen)) { 476 X509V3error(ERR_R_MALLOC_FAILURE); 477 goto err; 478 } 479 gen = NULL; 480 } 481 482 return 1; 483 484 err: 485 GENERAL_NAME_free(gen); 486 ASN1_IA5STRING_free(email); 487 return 0; 488 } 489 490 GENERAL_NAMES * 491 v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 492 STACK_OF(CONF_VALUE) *nval) 493 { 494 GENERAL_NAME *gen; 495 GENERAL_NAMES *gens = NULL; 496 CONF_VALUE *cnf; 497 int i; 498 499 if (!(gens = sk_GENERAL_NAME_new_null())) { 500 X509V3error(ERR_R_MALLOC_FAILURE); 501 return NULL; 502 } 503 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { 504 cnf = sk_CONF_VALUE_value(nval, i); 505 if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) 506 goto err; 507 if (sk_GENERAL_NAME_push(gens, gen) == 0) { 508 GENERAL_NAME_free(gen); 509 goto err; 510 } 511 } 512 return gens; 513 514 err: 515 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free); 516 return NULL; 517 } 518 LCRYPTO_ALIAS(v2i_GENERAL_NAMES) 519 520 GENERAL_NAME * 521 v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 522 CONF_VALUE *cnf) 523 { 524 return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0); 525 } 526 LCRYPTO_ALIAS(v2i_GENERAL_NAME) 527 528 GENERAL_NAME * 529 a2i_GENERAL_NAME(GENERAL_NAME *out, const X509V3_EXT_METHOD *method, 530 X509V3_CTX *ctx, int gen_type, const char *value, int is_nc) 531 { 532 char is_string = 0; 533 GENERAL_NAME *gen = NULL; 534 535 if (!value) { 536 X509V3error(X509V3_R_MISSING_VALUE); 537 return NULL; 538 } 539 540 if (out) 541 gen = out; 542 else { 543 gen = GENERAL_NAME_new(); 544 if (gen == NULL) { 545 X509V3error(ERR_R_MALLOC_FAILURE); 546 return NULL; 547 } 548 } 549 550 switch (gen_type) { 551 case GEN_URI: 552 case GEN_EMAIL: 553 case GEN_DNS: 554 is_string = 1; 555 break; 556 557 case GEN_RID: 558 { 559 ASN1_OBJECT *obj; 560 if (!(obj = OBJ_txt2obj(value, 0))) { 561 X509V3error(X509V3_R_BAD_OBJECT); 562 ERR_asprintf_error_data("value=%s", value); 563 goto err; 564 } 565 gen->d.rid = obj; 566 } 567 break; 568 569 case GEN_IPADD: 570 if (is_nc) 571 gen->d.ip = a2i_IPADDRESS_NC(value); 572 else 573 gen->d.ip = a2i_IPADDRESS(value); 574 if (gen->d.ip == NULL) { 575 X509V3error(X509V3_R_BAD_IP_ADDRESS); 576 ERR_asprintf_error_data("value=%s", value); 577 goto err; 578 } 579 break; 580 581 case GEN_DIRNAME: 582 if (!do_dirname(gen, value, ctx)) { 583 X509V3error(X509V3_R_DIRNAME_ERROR); 584 goto err; 585 } 586 break; 587 588 case GEN_OTHERNAME: 589 if (!do_othername(gen, value, ctx)) { 590 X509V3error(X509V3_R_OTHERNAME_ERROR); 591 goto err; 592 } 593 break; 594 595 default: 596 X509V3error(X509V3_R_UNSUPPORTED_TYPE); 597 goto err; 598 } 599 600 if (is_string) { 601 if (!(gen->d.ia5 = ASN1_IA5STRING_new()) || 602 !ASN1_STRING_set(gen->d.ia5, value, strlen(value))) { 603 X509V3error(ERR_R_MALLOC_FAILURE); 604 goto err; 605 } 606 } 607 608 gen->type = gen_type; 609 610 return gen; 611 612 err: 613 if (out == NULL) 614 GENERAL_NAME_free(gen); 615 return NULL; 616 } 617 LCRYPTO_ALIAS(a2i_GENERAL_NAME) 618 619 GENERAL_NAME * 620 v2i_GENERAL_NAME_ex(GENERAL_NAME *out, const X509V3_EXT_METHOD *method, 621 X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc) 622 { 623 uint8_t *bytes = NULL; 624 char *name, *value; 625 GENERAL_NAME *ret; 626 size_t len = 0; 627 int type; 628 CBS cbs; 629 630 name = cnf->name; 631 value = cnf->value; 632 633 if (!value) { 634 X509V3error(X509V3_R_MISSING_VALUE); 635 return NULL; 636 } 637 638 if (!name_cmp(name, "email")) 639 type = GEN_EMAIL; 640 else if (!name_cmp(name, "URI")) 641 type = GEN_URI; 642 else if (!name_cmp(name, "DNS")) 643 type = GEN_DNS; 644 else if (!name_cmp(name, "RID")) 645 type = GEN_RID; 646 else if (!name_cmp(name, "IP")) 647 type = GEN_IPADD; 648 else if (!name_cmp(name, "dirName")) 649 type = GEN_DIRNAME; 650 else if (!name_cmp(name, "otherName")) 651 type = GEN_OTHERNAME; 652 else { 653 X509V3error(X509V3_R_UNSUPPORTED_OPTION); 654 ERR_asprintf_error_data("name=%s", name); 655 return NULL; 656 } 657 658 ret = a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc); 659 if (ret == NULL) 660 return NULL; 661 662 /* 663 * Validate what we have for sanity. 664 */ 665 666 if (is_nc) { 667 struct x509_constraints_name *constraints_name = NULL; 668 669 if (!x509_constraints_validate(ret, &constraints_name, NULL)) { 670 X509V3error(X509V3_R_BAD_OBJECT); 671 ERR_asprintf_error_data("name=%s", name); 672 goto err; 673 } 674 x509_constraints_name_free(constraints_name); 675 return ret; 676 } 677 678 type = x509_constraints_general_to_bytes(ret, &bytes, &len); 679 CBS_init(&cbs, bytes, len); 680 switch (type) { 681 case GEN_DNS: 682 if (!x509_constraints_valid_sandns(&cbs)) { 683 X509V3error(X509V3_R_BAD_OBJECT); 684 ERR_asprintf_error_data("name=%s value='%.*s'", name, 685 (int)len, bytes); 686 goto err; 687 } 688 break; 689 case GEN_URI: 690 if (!x509_constraints_uri_host(bytes, len, NULL)) { 691 X509V3error(X509V3_R_BAD_OBJECT); 692 ERR_asprintf_error_data("name=%s value='%.*s'", name, 693 (int)len, bytes); 694 goto err; 695 } 696 break; 697 case GEN_EMAIL: 698 if (!x509_constraints_parse_mailbox(&cbs, NULL)) { 699 X509V3error(X509V3_R_BAD_OBJECT); 700 ERR_asprintf_error_data("name=%s value='%.*s'", name, 701 (int)len, bytes); 702 goto err; 703 } 704 break; 705 case GEN_IPADD: 706 if (len != 4 && len != 16) { 707 X509V3error(X509V3_R_BAD_IP_ADDRESS); 708 ERR_asprintf_error_data("name=%s len=%zu", name, len); 709 goto err; 710 } 711 break; 712 default: 713 break; 714 } 715 return ret; 716 err: 717 if (out == NULL) 718 GENERAL_NAME_free(ret); 719 return NULL; 720 } 721 LCRYPTO_ALIAS(v2i_GENERAL_NAME_ex) 722 723 static int 724 do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx) 725 { 726 char *objtmp = NULL, *p; 727 int objlen; 728 729 if (!(p = strchr(value, ';'))) 730 return 0; 731 if (!(gen->d.otherName = OTHERNAME_new())) 732 return 0; 733 /* Free this up because we will overwrite it. 734 * no need to free type_id because it is static 735 */ 736 ASN1_TYPE_free(gen->d.otherName->value); 737 if (!(gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx))) 738 return 0; 739 objlen = p - value; 740 objtmp = malloc(objlen + 1); 741 if (objtmp) { 742 strlcpy(objtmp, value, objlen + 1); 743 gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0); 744 free(objtmp); 745 } else 746 gen->d.otherName->type_id = NULL; 747 if (!gen->d.otherName->type_id) 748 return 0; 749 return 1; 750 } 751 752 static int 753 do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx) 754 { 755 int ret; 756 STACK_OF(CONF_VALUE) *sk; 757 X509_NAME *nm; 758 759 if (!(nm = X509_NAME_new())) 760 return 0; 761 sk = X509V3_get_section(ctx, value); 762 if (!sk) { 763 X509V3error(X509V3_R_SECTION_NOT_FOUND); 764 ERR_asprintf_error_data("section=%s", value); 765 X509_NAME_free(nm); 766 return 0; 767 } 768 /* FIXME: should allow other character types... */ 769 ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC); 770 if (!ret) 771 X509_NAME_free(nm); 772 gen->d.dirn = nm; 773 X509V3_section_free(ctx, sk); 774 775 return ret; 776 } 777