1 /* $OpenBSD: x509_lu.c,v 1.55 2022/01/14 07:53:45 tb Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <stdio.h> 60 #include <string.h> 61 62 #include <openssl/err.h> 63 #include <openssl/lhash.h> 64 #include <openssl/x509.h> 65 #include <openssl/x509v3.h> 66 #include "x509_lcl.h" 67 68 X509_LOOKUP * 69 X509_LOOKUP_new(X509_LOOKUP_METHOD *method) 70 { 71 X509_LOOKUP *lu; 72 73 if ((lu = calloc(1, sizeof(*lu))) == NULL) { 74 X509error(ERR_R_MALLOC_FAILURE); 75 return NULL; 76 } 77 78 lu->method = method; 79 80 if (method->new_item != NULL && !method->new_item(lu)) { 81 free(lu); 82 return NULL; 83 } 84 85 return lu; 86 } 87 88 void 89 X509_LOOKUP_free(X509_LOOKUP *ctx) 90 { 91 if (ctx == NULL) 92 return; 93 if (ctx->method != NULL && ctx->method->free != NULL) 94 ctx->method->free(ctx); 95 free(ctx); 96 } 97 98 int 99 X509_LOOKUP_init(X509_LOOKUP *ctx) 100 { 101 if (ctx->method == NULL) 102 return 0; 103 if (ctx->method->init == NULL) 104 return 1; 105 return ctx->method->init(ctx); 106 } 107 108 int 109 X509_LOOKUP_shutdown(X509_LOOKUP *ctx) 110 { 111 if (ctx->method == NULL) 112 return 0; 113 if (ctx->method->shutdown == NULL) 114 return 1; 115 return ctx->method->shutdown(ctx); 116 } 117 118 int 119 X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl, 120 char **ret) 121 { 122 if (ctx->method == NULL) 123 return -1; 124 if (ctx->method->ctrl == NULL) 125 return 1; 126 return ctx->method->ctrl(ctx, cmd, argc, argl, ret); 127 } 128 129 int 130 X509_LOOKUP_by_subject(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type, X509_NAME *name, 131 X509_OBJECT *ret) 132 { 133 if (ctx->method == NULL || ctx->method->get_by_subject == NULL) 134 return 0; 135 return ctx->method->get_by_subject(ctx, type, name, ret); 136 } 137 138 int 139 X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type, 140 X509_NAME *name, ASN1_INTEGER *serial, X509_OBJECT *ret) 141 { 142 if (ctx->method == NULL || ctx->method->get_by_issuer_serial == NULL) 143 return 0; 144 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret); 145 } 146 147 int 148 X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type, 149 const unsigned char *bytes, int len, X509_OBJECT *ret) 150 { 151 if (ctx->method == NULL || ctx->method->get_by_fingerprint == NULL) 152 return 0; 153 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret); 154 } 155 156 int 157 X509_LOOKUP_by_alias(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type, const char *str, 158 int len, X509_OBJECT *ret) 159 { 160 if (ctx->method == NULL || ctx->method->get_by_alias == NULL) 161 return 0; 162 return ctx->method->get_by_alias(ctx, type, str, len, ret); 163 } 164 165 static int 166 x509_object_cmp(const X509_OBJECT * const *a, const X509_OBJECT * const *b) 167 { 168 int ret; 169 170 if ((ret = (*a)->type - (*b)->type) != 0) 171 return ret; 172 173 switch ((*a)->type) { 174 case X509_LU_X509: 175 return X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509); 176 case X509_LU_CRL: 177 return X509_CRL_cmp((*a)->data.crl, (*b)->data.crl); 178 } 179 return 0; 180 } 181 182 X509_STORE * 183 X509_STORE_new(void) 184 { 185 X509_STORE *store; 186 187 if ((store = calloc(1, sizeof(*store))) == NULL) 188 goto err; 189 190 if ((store->objs = sk_X509_OBJECT_new(x509_object_cmp)) == NULL) 191 goto err; 192 if ((store->get_cert_methods = sk_X509_LOOKUP_new_null()) == NULL) 193 goto err; 194 if ((store->param = X509_VERIFY_PARAM_new()) == NULL) 195 goto err; 196 197 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, store, 198 &store->ex_data)) 199 goto err; 200 201 store->references = 1; 202 203 return store; 204 205 err: 206 X509error(ERR_R_MALLOC_FAILURE); 207 X509_STORE_free(store); 208 209 return NULL; 210 } 211 212 X509_OBJECT * 213 X509_OBJECT_new(void) 214 { 215 X509_OBJECT *obj; 216 217 if ((obj = calloc(1, sizeof(*obj))) == NULL) { 218 X509error(ERR_R_MALLOC_FAILURE); 219 return NULL; 220 } 221 222 obj->type = X509_LU_NONE; 223 224 return obj; 225 } 226 227 void 228 X509_OBJECT_free(X509_OBJECT *a) 229 { 230 if (a == NULL) 231 return; 232 233 switch (a->type) { 234 case X509_LU_X509: 235 X509_free(a->data.x509); 236 break; 237 case X509_LU_CRL: 238 X509_CRL_free(a->data.crl); 239 break; 240 } 241 242 free(a); 243 } 244 245 void 246 X509_STORE_free(X509_STORE *store) 247 { 248 STACK_OF(X509_LOOKUP) *sk; 249 X509_LOOKUP *lu; 250 int i; 251 252 if (store == NULL) 253 return; 254 255 if (CRYPTO_add(&store->references, -1, CRYPTO_LOCK_X509_STORE) > 0) 256 return; 257 258 sk = store->get_cert_methods; 259 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 260 lu = sk_X509_LOOKUP_value(sk, i); 261 X509_LOOKUP_shutdown(lu); 262 X509_LOOKUP_free(lu); 263 } 264 sk_X509_LOOKUP_free(sk); 265 sk_X509_OBJECT_pop_free(store->objs, X509_OBJECT_free); 266 267 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, store, &store->ex_data); 268 X509_VERIFY_PARAM_free(store->param); 269 free(store); 270 } 271 272 int 273 X509_STORE_up_ref(X509_STORE *store) 274 { 275 return CRYPTO_add(&store->references, 1, CRYPTO_LOCK_X509_STORE) > 1; 276 } 277 278 X509_LOOKUP * 279 X509_STORE_add_lookup(X509_STORE *store, X509_LOOKUP_METHOD *method) 280 { 281 STACK_OF(X509_LOOKUP) *sk; 282 X509_LOOKUP *lu; 283 int i; 284 285 sk = store->get_cert_methods; 286 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 287 lu = sk_X509_LOOKUP_value(sk, i); 288 if (method == lu->method) { 289 return lu; 290 } 291 } 292 293 if ((lu = X509_LOOKUP_new(method)) == NULL) 294 return NULL; 295 296 lu->store_ctx = store; 297 if (sk_X509_LOOKUP_push(store->get_cert_methods, lu) <= 0) { 298 X509error(ERR_R_MALLOC_FAILURE); 299 X509_LOOKUP_free(lu); 300 return NULL; 301 } 302 303 return lu; 304 } 305 306 X509_OBJECT * 307 X509_STORE_CTX_get_obj_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type, 308 X509_NAME *name) 309 { 310 X509_OBJECT *obj; 311 312 if ((obj = X509_OBJECT_new()) == NULL) 313 return NULL; 314 if (!X509_STORE_CTX_get_by_subject(vs, type, name, obj)) { 315 X509_OBJECT_free(obj); 316 return NULL; 317 } 318 319 return obj; 320 } 321 322 int 323 X509_STORE_CTX_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type, 324 X509_NAME *name, X509_OBJECT *ret) 325 { 326 X509_STORE *ctx = vs->store; 327 X509_LOOKUP *lu; 328 X509_OBJECT stmp, *tmp; 329 int i; 330 331 if (ctx == NULL) 332 return 0; 333 334 memset(&stmp, 0, sizeof(stmp)); 335 336 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 337 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name); 338 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 339 340 if (tmp == NULL || type == X509_LU_CRL) { 341 for (i = 0; i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) { 342 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i); 343 if (X509_LOOKUP_by_subject(lu, type, name, &stmp) != 0) { 344 tmp = &stmp; 345 break; 346 } 347 } 348 if (tmp == NULL) 349 return 0; 350 } 351 352 if (!X509_OBJECT_up_ref_count(tmp)) 353 return 0; 354 355 *ret = *tmp; 356 357 return 1; 358 } 359 360 /* Add obj to the store. Takes ownership of obj. */ 361 static int 362 X509_STORE_add_object(X509_STORE *store, X509_OBJECT *obj) 363 { 364 int ret = 0; 365 366 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 367 368 if (X509_OBJECT_retrieve_match(store->objs, obj) != NULL) { 369 /* Object is already present in the store. That's fine. */ 370 ret = 1; 371 goto out; 372 } 373 374 if (sk_X509_OBJECT_push(store->objs, obj) <= 0) { 375 X509error(ERR_R_MALLOC_FAILURE); 376 goto out; 377 } 378 379 obj = NULL; 380 ret = 1; 381 382 out: 383 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 384 X509_OBJECT_free(obj); 385 386 return ret; 387 } 388 389 int 390 X509_STORE_add_cert(X509_STORE *store, X509 *x) 391 { 392 X509_OBJECT *obj; 393 394 if (x == NULL) 395 return 0; 396 397 if ((obj = X509_OBJECT_new()) == NULL) 398 return 0; 399 400 if (!X509_up_ref(x)) { 401 X509_OBJECT_free(obj); 402 return 0; 403 } 404 405 obj->type = X509_LU_X509; 406 obj->data.x509 = x; 407 408 return X509_STORE_add_object(store, obj); 409 } 410 411 int 412 X509_STORE_add_crl(X509_STORE *store, X509_CRL *x) 413 { 414 X509_OBJECT *obj; 415 416 if (x == NULL) 417 return 0; 418 419 if ((obj = X509_OBJECT_new()) == NULL) 420 return 0; 421 422 if (!X509_CRL_up_ref(x)) { 423 X509_OBJECT_free(obj); 424 return 0; 425 } 426 427 obj->type = X509_LU_CRL; 428 obj->data.crl = x; 429 430 return X509_STORE_add_object(store, obj); 431 } 432 433 int 434 X509_OBJECT_up_ref_count(X509_OBJECT *a) 435 { 436 switch (a->type) { 437 case X509_LU_X509: 438 return X509_up_ref(a->data.x509); 439 case X509_LU_CRL: 440 return X509_CRL_up_ref(a->data.crl); 441 } 442 return 1; 443 } 444 445 X509_LOOKUP_TYPE 446 X509_OBJECT_get_type(const X509_OBJECT *a) 447 { 448 return a->type; 449 } 450 451 static int 452 x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type, 453 X509_NAME *name, int *pnmatch) 454 { 455 X509_OBJECT stmp; 456 X509 x509_s; 457 X509_CINF cinf_s; 458 X509_CRL crl_s; 459 X509_CRL_INFO crl_info_s; 460 int idx; 461 462 stmp.type = type; 463 switch (type) { 464 case X509_LU_X509: 465 stmp.data.x509 = &x509_s; 466 x509_s.cert_info = &cinf_s; 467 cinf_s.subject = name; 468 break; 469 case X509_LU_CRL: 470 stmp.data.crl = &crl_s; 471 crl_s.crl = &crl_info_s; 472 crl_info_s.issuer = name; 473 break; 474 default: 475 return -1; 476 } 477 478 idx = sk_X509_OBJECT_find(h, &stmp); 479 if (idx >= 0 && pnmatch) { 480 int tidx; 481 const X509_OBJECT *tobj, *pstmp; 482 483 *pnmatch = 1; 484 pstmp = &stmp; 485 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) { 486 tobj = sk_X509_OBJECT_value(h, tidx); 487 if (x509_object_cmp(&tobj, &pstmp)) 488 break; 489 (*pnmatch)++; 490 } 491 } 492 return idx; 493 } 494 495 int 496 X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type, 497 X509_NAME *name) 498 { 499 return x509_object_idx_cnt(h, type, name, NULL); 500 } 501 502 X509_OBJECT * 503 X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type, 504 X509_NAME *name) 505 { 506 int idx; 507 508 idx = X509_OBJECT_idx_by_subject(h, type, name); 509 if (idx == -1) 510 return NULL; 511 return sk_X509_OBJECT_value(h, idx); 512 } 513 514 X509 * 515 X509_OBJECT_get0_X509(const X509_OBJECT *xo) 516 { 517 if (xo != NULL && xo->type == X509_LU_X509) 518 return xo->data.x509; 519 return NULL; 520 } 521 522 X509_CRL * 523 X509_OBJECT_get0_X509_CRL(X509_OBJECT *xo) 524 { 525 if (xo != NULL && xo->type == X509_LU_CRL) 526 return xo->data.crl; 527 return NULL; 528 } 529 530 static STACK_OF(X509) * 531 X509_get1_certs_from_cache(X509_STORE *store, X509_NAME *name) 532 { 533 STACK_OF(X509) *sk = NULL; 534 X509 *x = NULL; 535 X509_OBJECT *obj; 536 int i, idx, cnt; 537 538 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 539 540 idx = x509_object_idx_cnt(store->objs, X509_LU_X509, name, &cnt); 541 if (idx < 0) 542 goto err; 543 544 if ((sk = sk_X509_new_null()) == NULL) 545 goto err; 546 547 for (i = 0; i < cnt; i++, idx++) { 548 obj = sk_X509_OBJECT_value(store->objs, idx); 549 550 x = obj->data.x509; 551 if (!X509_up_ref(x)) { 552 x = NULL; 553 goto err; 554 } 555 if (!sk_X509_push(sk, x)) 556 goto err; 557 } 558 559 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 560 561 return sk; 562 563 err: 564 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 565 sk_X509_pop_free(sk, X509_free); 566 X509_free(x); 567 568 return NULL; 569 } 570 571 STACK_OF(X509) * 572 X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *name) 573 { 574 X509_STORE *store = ctx->store; 575 STACK_OF(X509) *sk; 576 X509_OBJECT *obj; 577 578 if (store == NULL) 579 return NULL; 580 581 if ((sk = X509_get1_certs_from_cache(store, name)) != NULL) 582 return sk; 583 584 /* Nothing found: do lookup to possibly add new objects to cache. */ 585 obj = X509_STORE_CTX_get_obj_by_subject(ctx, X509_LU_X509, name); 586 if (obj == NULL) 587 return NULL; 588 X509_OBJECT_free(obj); 589 590 return X509_get1_certs_from_cache(store, name); 591 } 592 593 STACK_OF(X509_CRL) * 594 X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *name) 595 { 596 X509_STORE *store = ctx->store; 597 STACK_OF(X509_CRL) *sk = NULL; 598 X509_CRL *x = NULL; 599 X509_OBJECT *obj = NULL; 600 int i, idx, cnt; 601 602 if (store == NULL) 603 return NULL; 604 605 /* Always do lookup to possibly add new CRLs to cache */ 606 obj = X509_STORE_CTX_get_obj_by_subject(ctx, X509_LU_CRL, name); 607 if (obj == NULL) 608 return NULL; 609 610 X509_OBJECT_free(obj); 611 obj = NULL; 612 613 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 614 idx = x509_object_idx_cnt(store->objs, X509_LU_CRL, name, &cnt); 615 if (idx < 0) 616 goto err; 617 618 if ((sk = sk_X509_CRL_new_null()) == NULL) 619 goto err; 620 621 for (i = 0; i < cnt; i++, idx++) { 622 obj = sk_X509_OBJECT_value(store->objs, idx); 623 624 x = obj->data.crl; 625 if (!X509_CRL_up_ref(x)) { 626 x = NULL; 627 goto err; 628 } 629 if (!sk_X509_CRL_push(sk, x)) 630 goto err; 631 } 632 633 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 634 return sk; 635 636 err: 637 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 638 X509_CRL_free(x); 639 sk_X509_CRL_pop_free(sk, X509_CRL_free); 640 return NULL; 641 } 642 643 X509_OBJECT * 644 X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x) 645 { 646 int idx, i; 647 X509_OBJECT *obj; 648 649 idx = sk_X509_OBJECT_find(h, x); 650 if (idx == -1) 651 return NULL; 652 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL)) 653 return sk_X509_OBJECT_value(h, idx); 654 for (i = idx; i < sk_X509_OBJECT_num(h); i++) { 655 obj = sk_X509_OBJECT_value(h, i); 656 if (x509_object_cmp((const X509_OBJECT **)&obj, 657 (const X509_OBJECT **)&x)) 658 return NULL; 659 if (x->type == X509_LU_X509) { 660 if (!X509_cmp(obj->data.x509, x->data.x509)) 661 return obj; 662 } else if (x->type == X509_LU_CRL) { 663 if (!X509_CRL_match(obj->data.crl, x->data.crl)) 664 return obj; 665 } else 666 return obj; 667 } 668 return NULL; 669 } 670 671 /* Try to get issuer certificate from store. Due to limitations 672 * of the API this can only retrieve a single certificate matching 673 * a given subject name. However it will fill the cache with all 674 * matching certificates, so we can examine the cache for all 675 * matches. 676 * 677 * Return values are: 678 * 1 lookup successful. 679 * 0 certificate not found. 680 * -1 some other error. 681 */ 682 int 683 X509_STORE_CTX_get1_issuer(X509 **out_issuer, X509_STORE_CTX *ctx, X509 *x) 684 { 685 X509_NAME *xn; 686 X509_OBJECT *obj, *pobj; 687 X509 *issuer = NULL; 688 int i, idx, ret; 689 690 *out_issuer = NULL; 691 692 xn = X509_get_issuer_name(x); 693 obj = X509_STORE_CTX_get_obj_by_subject(ctx, X509_LU_X509, xn); 694 if (obj == NULL) 695 return 0; 696 697 if ((issuer = X509_OBJECT_get0_X509(obj)) == NULL) { 698 X509_OBJECT_free(obj); 699 return 0; 700 } 701 if (!X509_up_ref(issuer)) { 702 X509_OBJECT_free(obj); 703 return -1; 704 } 705 706 /* If certificate matches all OK */ 707 if (ctx->check_issued(ctx, x, issuer)) { 708 if (x509_check_cert_time(ctx, issuer, -1)) { 709 *out_issuer = issuer; 710 X509_OBJECT_free(obj); 711 return 1; 712 } 713 } 714 X509_free(issuer); 715 issuer = NULL; 716 X509_OBJECT_free(obj); 717 obj = NULL; 718 719 if (ctx->store == NULL) 720 return 0; 721 722 /* Else find index of first cert accepted by 'check_issued' */ 723 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 724 idx = X509_OBJECT_idx_by_subject(ctx->store->objs, X509_LU_X509, xn); 725 if (idx != -1) /* should be true as we've had at least one match */ { 726 /* Look through all matching certs for suitable issuer */ 727 for (i = idx; i < sk_X509_OBJECT_num(ctx->store->objs); i++) { 728 pobj = sk_X509_OBJECT_value(ctx->store->objs, i); 729 /* See if we've run past the matches */ 730 if (pobj->type != X509_LU_X509) 731 break; 732 if (X509_NAME_cmp(xn, 733 X509_get_subject_name(pobj->data.x509))) 734 break; 735 if (ctx->check_issued(ctx, x, pobj->data.x509)) { 736 issuer = pobj->data.x509; 737 /* 738 * If times check, exit with match, 739 * otherwise keep looking. Leave last 740 * match in issuer so we return nearest 741 * match if no certificate time is OK. 742 */ 743 if (x509_check_cert_time(ctx, issuer, -1)) 744 break; 745 } 746 } 747 } 748 ret = 0; 749 if (issuer != NULL) { 750 if (!X509_up_ref(issuer)) { 751 ret = -1; 752 } else { 753 *out_issuer = issuer; 754 ret = 1; 755 } 756 } 757 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 758 return ret; 759 } 760 761 STACK_OF(X509_OBJECT) * 762 X509_STORE_get0_objects(X509_STORE *xs) 763 { 764 return xs->objs; 765 } 766 767 void * 768 X509_STORE_get_ex_data(X509_STORE *xs, int idx) 769 { 770 return CRYPTO_get_ex_data(&xs->ex_data, idx); 771 } 772 773 int 774 X509_STORE_set_ex_data(X509_STORE *xs, int idx, void *data) 775 { 776 return CRYPTO_set_ex_data(&xs->ex_data, idx, data); 777 } 778 779 int 780 X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags) 781 { 782 return X509_VERIFY_PARAM_set_flags(ctx->param, flags); 783 } 784 785 int 786 X509_STORE_set_depth(X509_STORE *ctx, int depth) 787 { 788 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 789 return 1; 790 } 791 792 int 793 X509_STORE_set_purpose(X509_STORE *ctx, int purpose) 794 { 795 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose); 796 } 797 798 int 799 X509_STORE_set_trust(X509_STORE *ctx, int trust) 800 { 801 return X509_VERIFY_PARAM_set_trust(ctx->param, trust); 802 } 803 804 int 805 X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param) 806 { 807 return X509_VERIFY_PARAM_set1(ctx->param, param); 808 } 809 810 X509_VERIFY_PARAM * 811 X509_STORE_get0_param(X509_STORE *ctx) 812 { 813 return ctx->param; 814 } 815 816 void 817 X509_STORE_set_verify(X509_STORE *store, X509_STORE_CTX_verify_fn verify) 818 { 819 store->verify = verify; 820 } 821 822 X509_STORE_CTX_verify_fn 823 X509_STORE_get_verify(X509_STORE *store) 824 { 825 return store->verify; 826 } 827 828 void 829 X509_STORE_set_verify_cb(X509_STORE *store, X509_STORE_CTX_verify_cb verify_cb) 830 { 831 store->verify_cb = verify_cb; 832 } 833 834 X509_STORE_CTX_verify_cb 835 X509_STORE_get_verify_cb(X509_STORE *store) 836 { 837 return store->verify_cb; 838 } 839