1/* $OpenBSD: x509_alt.c,v 1.16 2023/08/30 00:49:32 tb 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 68static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method, 69 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval); 70static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method, 71 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval); 72static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p); 73static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens); 74static int do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx); 75static int do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx); 76 77const 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 128STACK_OF(CONF_VALUE) * 129i2v_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} 155LCRYPTO_ALIAS(i2v_GENERAL_NAMES); 156 157STACK_OF(CONF_VALUE) * 158i2v_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} 248LCRYPTO_ALIAS(i2v_GENERAL_NAME); 249 250int 251GENERAL_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} 315LCRYPTO_ALIAS(GENERAL_NAME_print); 316 317static GENERAL_NAMES * 318v2i_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 347err: 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 354static int 355copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens) 356{ 357 GENERAL_NAMES *ialt = NULL; 358 GENERAL_NAME *gen = NULL; 359 X509_EXTENSION *ext; 360 int i; 361 int ret = 0; 362 363 if (ctx && (ctx->flags == CTX_TEST)) 364 return 1; 365 if (!ctx || !ctx->issuer_cert) { 366 X509V3error(X509V3_R_NO_ISSUER_DETAILS); 367 goto err; 368 } 369 i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1); 370 if (i < 0) 371 return 1; 372 if (!(ext = X509_get_ext(ctx->issuer_cert, i)) || 373 !(ialt = X509V3_EXT_d2i(ext))) { 374 X509V3error(X509V3_R_ISSUER_DECODE_ERROR); 375 goto err; 376 } 377 378 for (i = 0; i < sk_GENERAL_NAME_num(ialt); i++) { 379 GENERAL_NAME *val = sk_GENERAL_NAME_value(ialt, i); 380 381 if ((gen = GENERAL_NAME_dup(val)) == NULL) 382 goto err; 383 if (!sk_GENERAL_NAME_push(gens, gen)) { 384 X509V3error(ERR_R_MALLOC_FAILURE); 385 goto err; 386 } 387 gen = NULL; 388 } 389 390 ret = 1; 391 392 err: 393 sk_GENERAL_NAME_pop_free(ialt, GENERAL_NAME_free); 394 GENERAL_NAME_free(gen); 395 396 return ret; 397} 398 399static GENERAL_NAMES * 400v2i_subject_alt(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 401 STACK_OF(CONF_VALUE) *nval) 402{ 403 GENERAL_NAMES *gens = NULL; 404 CONF_VALUE *cnf; 405 int i; 406 407 if (!(gens = sk_GENERAL_NAME_new_null())) { 408 X509V3error(ERR_R_MALLOC_FAILURE); 409 return NULL; 410 } 411 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { 412 cnf = sk_CONF_VALUE_value(nval, i); 413 if (!name_cmp(cnf->name, "email") && cnf->value && 414 !strcmp(cnf->value, "copy")) { 415 if (!copy_email(ctx, gens, 0)) 416 goto err; 417 } else if (!name_cmp(cnf->name, "email") && cnf->value && 418 !strcmp(cnf->value, "move")) { 419 if (!copy_email(ctx, gens, 1)) 420 goto err; 421 } else { 422 GENERAL_NAME *gen; 423 if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) 424 goto err; 425 if (sk_GENERAL_NAME_push(gens, gen) == 0) { 426 GENERAL_NAME_free(gen); 427 goto err; 428 } 429 } 430 } 431 return gens; 432 433err: 434 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free); 435 return NULL; 436} 437 438/* Copy any email addresses in a certificate or request to 439 * GENERAL_NAMES 440 */ 441 442static int 443copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p) 444{ 445 X509_NAME *nm; 446 ASN1_IA5STRING *email = NULL; 447 X509_NAME_ENTRY *ne; 448 GENERAL_NAME *gen = NULL; 449 int i; 450 451 if (ctx != NULL && ctx->flags == CTX_TEST) 452 return 1; 453 if (!ctx || (!ctx->subject_cert && !ctx->subject_req)) { 454 X509V3error(X509V3_R_NO_SUBJECT_DETAILS); 455 goto err; 456 } 457 /* Find the subject name */ 458 if (ctx->subject_cert) 459 nm = X509_get_subject_name(ctx->subject_cert); 460 else 461 nm = X509_REQ_get_subject_name(ctx->subject_req); 462 463 /* Now add any email address(es) to STACK */ 464 i = -1; 465 while ((i = X509_NAME_get_index_by_NID(nm, 466 NID_pkcs9_emailAddress, i)) >= 0) { 467 ne = X509_NAME_get_entry(nm, i); 468 email = ASN1_STRING_dup(X509_NAME_ENTRY_get_data(ne)); 469 if (move_p) { 470 X509_NAME_delete_entry(nm, i); 471 X509_NAME_ENTRY_free(ne); 472 i--; 473 } 474 if (!email || !(gen = GENERAL_NAME_new())) { 475 X509V3error(ERR_R_MALLOC_FAILURE); 476 goto err; 477 } 478 gen->d.ia5 = email; 479 email = NULL; 480 gen->type = GEN_EMAIL; 481 if (!sk_GENERAL_NAME_push(gens, gen)) { 482 X509V3error(ERR_R_MALLOC_FAILURE); 483 goto err; 484 } 485 gen = NULL; 486 } 487 488 return 1; 489 490err: 491 GENERAL_NAME_free(gen); 492 ASN1_IA5STRING_free(email); 493 return 0; 494} 495 496GENERAL_NAMES * 497v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 498 STACK_OF(CONF_VALUE) *nval) 499{ 500 GENERAL_NAME *gen; 501 GENERAL_NAMES *gens = NULL; 502 CONF_VALUE *cnf; 503 int i; 504 505 if (!(gens = sk_GENERAL_NAME_new_null())) { 506 X509V3error(ERR_R_MALLOC_FAILURE); 507 return NULL; 508 } 509 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { 510 cnf = sk_CONF_VALUE_value(nval, i); 511 if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) 512 goto err; 513 if (sk_GENERAL_NAME_push(gens, gen) == 0) { 514 GENERAL_NAME_free(gen); 515 goto err; 516 } 517 } 518 return gens; 519 520err: 521 sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free); 522 return NULL; 523} 524LCRYPTO_ALIAS(v2i_GENERAL_NAMES); 525 526GENERAL_NAME * 527v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 528 CONF_VALUE *cnf) 529{ 530 return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0); 531} 532LCRYPTO_ALIAS(v2i_GENERAL_NAME); 533 534GENERAL_NAME * 535a2i_GENERAL_NAME(GENERAL_NAME *out, const X509V3_EXT_METHOD *method, 536 X509V3_CTX *ctx, int gen_type, const char *value, int is_nc) 537{ 538 char is_string = 0; 539 GENERAL_NAME *gen = NULL; 540 541 if (!value) { 542 X509V3error(X509V3_R_MISSING_VALUE); 543 return NULL; 544 } 545 546 if (out) 547 gen = out; 548 else { 549 gen = GENERAL_NAME_new(); 550 if (gen == NULL) { 551 X509V3error(ERR_R_MALLOC_FAILURE); 552 return NULL; 553 } 554 } 555 556 switch (gen_type) { 557 case GEN_URI: 558 case GEN_EMAIL: 559 case GEN_DNS: 560 is_string = 1; 561 break; 562 563 case GEN_RID: 564 { 565 ASN1_OBJECT *obj; 566 if (!(obj = OBJ_txt2obj(value, 0))) { 567 X509V3error(X509V3_R_BAD_OBJECT); 568 ERR_asprintf_error_data("value=%s", value); 569 goto err; 570 } 571 gen->d.rid = obj; 572 } 573 break; 574 575 case GEN_IPADD: 576 if (is_nc) 577 gen->d.ip = a2i_IPADDRESS_NC(value); 578 else 579 gen->d.ip = a2i_IPADDRESS(value); 580 if (gen->d.ip == NULL) { 581 X509V3error(X509V3_R_BAD_IP_ADDRESS); 582 ERR_asprintf_error_data("value=%s", value); 583 goto err; 584 } 585 break; 586 587 case GEN_DIRNAME: 588 if (!do_dirname(gen, value, ctx)) { 589 X509V3error(X509V3_R_DIRNAME_ERROR); 590 goto err; 591 } 592 break; 593 594 case GEN_OTHERNAME: 595 if (!do_othername(gen, value, ctx)) { 596 X509V3error(X509V3_R_OTHERNAME_ERROR); 597 goto err; 598 } 599 break; 600 601 default: 602 X509V3error(X509V3_R_UNSUPPORTED_TYPE); 603 goto err; 604 } 605 606 if (is_string) { 607 if (!(gen->d.ia5 = ASN1_IA5STRING_new()) || 608 !ASN1_STRING_set(gen->d.ia5, value, strlen(value))) { 609 X509V3error(ERR_R_MALLOC_FAILURE); 610 goto err; 611 } 612 } 613 614 gen->type = gen_type; 615 616 return gen; 617 618err: 619 if (out == NULL) 620 GENERAL_NAME_free(gen); 621 return NULL; 622} 623LCRYPTO_ALIAS(a2i_GENERAL_NAME); 624 625GENERAL_NAME * 626v2i_GENERAL_NAME_ex(GENERAL_NAME *out, const X509V3_EXT_METHOD *method, 627 X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc) 628{ 629 uint8_t *bytes = NULL; 630 char *name, *value; 631 GENERAL_NAME *ret; 632 size_t len = 0; 633 int type; 634 CBS cbs; 635 636 name = cnf->name; 637 value = cnf->value; 638 639 if (!value) { 640 X509V3error(X509V3_R_MISSING_VALUE); 641 return NULL; 642 } 643 644 if (!name_cmp(name, "email")) 645 type = GEN_EMAIL; 646 else if (!name_cmp(name, "URI")) 647 type = GEN_URI; 648 else if (!name_cmp(name, "DNS")) 649 type = GEN_DNS; 650 else if (!name_cmp(name, "RID")) 651 type = GEN_RID; 652 else if (!name_cmp(name, "IP")) 653 type = GEN_IPADD; 654 else if (!name_cmp(name, "dirName")) 655 type = GEN_DIRNAME; 656 else if (!name_cmp(name, "otherName")) 657 type = GEN_OTHERNAME; 658 else { 659 X509V3error(X509V3_R_UNSUPPORTED_OPTION); 660 ERR_asprintf_error_data("name=%s", name); 661 return NULL; 662 } 663 664 ret = a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc); 665 if (ret == NULL) 666 return NULL; 667 668 /* 669 * Validate what we have for sanity. 670 */ 671 672 if (is_nc) { 673 struct x509_constraints_name *constraints_name = NULL; 674 675 if (!x509_constraints_validate(ret, &constraints_name, NULL)) { 676 X509V3error(X509V3_R_BAD_OBJECT); 677 ERR_asprintf_error_data("name=%s", name); 678 goto err; 679 } 680 x509_constraints_name_free(constraints_name); 681 return ret; 682 } 683 684 type = x509_constraints_general_to_bytes(ret, &bytes, &len); 685 CBS_init(&cbs, bytes, len); 686 switch (type) { 687 case GEN_DNS: 688 if (!x509_constraints_valid_sandns(&cbs)) { 689 X509V3error(X509V3_R_BAD_OBJECT); 690 ERR_asprintf_error_data("name=%s value='%.*s'", name, 691 (int)len, bytes); 692 goto err; 693 } 694 break; 695 case GEN_URI: 696 if (!x509_constraints_uri_host(bytes, len, NULL)) { 697 X509V3error(X509V3_R_BAD_OBJECT); 698 ERR_asprintf_error_data("name=%s value='%.*s'", name, 699 (int)len, bytes); 700 goto err; 701 } 702 break; 703 case GEN_EMAIL: 704 if (!x509_constraints_parse_mailbox(&cbs, NULL)) { 705 X509V3error(X509V3_R_BAD_OBJECT); 706 ERR_asprintf_error_data("name=%s value='%.*s'", name, 707 (int)len, bytes); 708 goto err; 709 } 710 break; 711 case GEN_IPADD: 712 if (len != 4 && len != 16) { 713 X509V3error(X509V3_R_BAD_IP_ADDRESS); 714 ERR_asprintf_error_data("name=%s len=%zu", name, len); 715 goto err; 716 } 717 break; 718 default: 719 break; 720 } 721 return ret; 722 err: 723 if (out == NULL) 724 GENERAL_NAME_free(ret); 725 return NULL; 726} 727LCRYPTO_ALIAS(v2i_GENERAL_NAME_ex); 728 729static int 730do_othername(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx) 731{ 732 char *objtmp = NULL, *p; 733 int objlen; 734 735 if (!(p = strchr(value, ';'))) 736 return 0; 737 if (!(gen->d.otherName = OTHERNAME_new())) 738 return 0; 739 /* Free this up because we will overwrite it. 740 * no need to free type_id because it is static 741 */ 742 ASN1_TYPE_free(gen->d.otherName->value); 743 if (!(gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx))) 744 return 0; 745 objlen = p - value; 746 objtmp = malloc(objlen + 1); 747 if (objtmp) { 748 strlcpy(objtmp, value, objlen + 1); 749 gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0); 750 free(objtmp); 751 } else 752 gen->d.otherName->type_id = NULL; 753 if (!gen->d.otherName->type_id) 754 return 0; 755 return 1; 756} 757 758static int 759do_dirname(GENERAL_NAME *gen, const char *value, X509V3_CTX *ctx) 760{ 761 int ret; 762 STACK_OF(CONF_VALUE) *sk; 763 X509_NAME *nm; 764 765 if (!(nm = X509_NAME_new())) 766 return 0; 767 sk = X509V3_get_section(ctx, value); 768 if (!sk) { 769 X509V3error(X509V3_R_SECTION_NOT_FOUND); 770 ERR_asprintf_error_data("section=%s", value); 771 X509_NAME_free(nm); 772 return 0; 773 } 774 /* FIXME: should allow other character types... */ 775 ret = X509V3_NAME_from_section(nm, sk, MBSTRING_ASC); 776 if (!ret) 777 X509_NAME_free(nm); 778 gen->d.dirn = nm; 779 X509V3_section_free(ctx, sk); 780 781 return ret; 782} 783