1 /* $OpenBSD: x509_lu.c,v 1.60 2023/04/25 18:32:42 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_local.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 LCRYPTO_ALIAS(X509_LOOKUP_new); 88 89 void 90 X509_LOOKUP_free(X509_LOOKUP *ctx) 91 { 92 if (ctx == NULL) 93 return; 94 if (ctx->method != NULL && ctx->method->free != NULL) 95 ctx->method->free(ctx); 96 free(ctx); 97 } 98 LCRYPTO_ALIAS(X509_LOOKUP_free); 99 100 int 101 X509_LOOKUP_init(X509_LOOKUP *ctx) 102 { 103 if (ctx->method == NULL) 104 return 0; 105 if (ctx->method->init == NULL) 106 return 1; 107 return ctx->method->init(ctx); 108 } 109 LCRYPTO_ALIAS(X509_LOOKUP_init); 110 111 int 112 X509_LOOKUP_shutdown(X509_LOOKUP *ctx) 113 { 114 if (ctx->method == NULL) 115 return 0; 116 if (ctx->method->shutdown == NULL) 117 return 1; 118 return ctx->method->shutdown(ctx); 119 } 120 LCRYPTO_ALIAS(X509_LOOKUP_shutdown); 121 122 int 123 X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl, 124 char **ret) 125 { 126 if (ctx->method == NULL) 127 return -1; 128 if (ctx->method->ctrl == NULL) 129 return 1; 130 return ctx->method->ctrl(ctx, cmd, argc, argl, ret); 131 } 132 LCRYPTO_ALIAS(X509_LOOKUP_ctrl); 133 134 int 135 X509_LOOKUP_by_subject(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type, X509_NAME *name, 136 X509_OBJECT *ret) 137 { 138 if (ctx->method == NULL || ctx->method->get_by_subject == NULL) 139 return 0; 140 return ctx->method->get_by_subject(ctx, type, name, ret); 141 } 142 LCRYPTO_ALIAS(X509_LOOKUP_by_subject); 143 144 int 145 X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type, 146 X509_NAME *name, ASN1_INTEGER *serial, X509_OBJECT *ret) 147 { 148 if (ctx->method == NULL || ctx->method->get_by_issuer_serial == NULL) 149 return 0; 150 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret); 151 } 152 LCRYPTO_ALIAS(X509_LOOKUP_by_issuer_serial); 153 154 int 155 X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type, 156 const unsigned char *bytes, int len, X509_OBJECT *ret) 157 { 158 if (ctx->method == NULL || ctx->method->get_by_fingerprint == NULL) 159 return 0; 160 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret); 161 } 162 LCRYPTO_ALIAS(X509_LOOKUP_by_fingerprint); 163 164 int 165 X509_LOOKUP_by_alias(X509_LOOKUP *ctx, X509_LOOKUP_TYPE type, const char *str, 166 int len, X509_OBJECT *ret) 167 { 168 if (ctx->method == NULL || ctx->method->get_by_alias == NULL) 169 return 0; 170 return ctx->method->get_by_alias(ctx, type, str, len, ret); 171 } 172 LCRYPTO_ALIAS(X509_LOOKUP_by_alias); 173 174 static int 175 x509_object_cmp(const X509_OBJECT * const *a, const X509_OBJECT * const *b) 176 { 177 int ret; 178 179 if ((ret = (*a)->type - (*b)->type) != 0) 180 return ret; 181 182 switch ((*a)->type) { 183 case X509_LU_X509: 184 return X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509); 185 case X509_LU_CRL: 186 return X509_CRL_cmp((*a)->data.crl, (*b)->data.crl); 187 } 188 return 0; 189 } 190 191 X509_STORE * 192 X509_STORE_new(void) 193 { 194 X509_STORE *store; 195 196 if ((store = calloc(1, sizeof(*store))) == NULL) 197 goto err; 198 199 if ((store->objs = sk_X509_OBJECT_new(x509_object_cmp)) == NULL) 200 goto err; 201 if ((store->get_cert_methods = sk_X509_LOOKUP_new_null()) == NULL) 202 goto err; 203 if ((store->param = X509_VERIFY_PARAM_new()) == NULL) 204 goto err; 205 206 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, store, 207 &store->ex_data)) 208 goto err; 209 210 store->references = 1; 211 212 return store; 213 214 err: 215 X509error(ERR_R_MALLOC_FAILURE); 216 X509_STORE_free(store); 217 218 return NULL; 219 } 220 LCRYPTO_ALIAS(X509_STORE_new); 221 222 X509_OBJECT * 223 X509_OBJECT_new(void) 224 { 225 X509_OBJECT *obj; 226 227 if ((obj = calloc(1, sizeof(*obj))) == NULL) { 228 X509error(ERR_R_MALLOC_FAILURE); 229 return NULL; 230 } 231 232 obj->type = X509_LU_NONE; 233 234 return obj; 235 } 236 LCRYPTO_ALIAS(X509_OBJECT_new); 237 238 void 239 X509_OBJECT_free(X509_OBJECT *a) 240 { 241 if (a == NULL) 242 return; 243 244 switch (a->type) { 245 case X509_LU_X509: 246 X509_free(a->data.x509); 247 break; 248 case X509_LU_CRL: 249 X509_CRL_free(a->data.crl); 250 break; 251 } 252 253 free(a); 254 } 255 LCRYPTO_ALIAS(X509_OBJECT_free); 256 257 void 258 X509_STORE_free(X509_STORE *store) 259 { 260 STACK_OF(X509_LOOKUP) *sk; 261 X509_LOOKUP *lu; 262 int i; 263 264 if (store == NULL) 265 return; 266 267 if (CRYPTO_add(&store->references, -1, CRYPTO_LOCK_X509_STORE) > 0) 268 return; 269 270 sk = store->get_cert_methods; 271 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 272 lu = sk_X509_LOOKUP_value(sk, i); 273 X509_LOOKUP_shutdown(lu); 274 X509_LOOKUP_free(lu); 275 } 276 sk_X509_LOOKUP_free(sk); 277 sk_X509_OBJECT_pop_free(store->objs, X509_OBJECT_free); 278 279 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, store, &store->ex_data); 280 X509_VERIFY_PARAM_free(store->param); 281 free(store); 282 } 283 LCRYPTO_ALIAS(X509_STORE_free); 284 285 int 286 X509_STORE_up_ref(X509_STORE *store) 287 { 288 return CRYPTO_add(&store->references, 1, CRYPTO_LOCK_X509_STORE) > 1; 289 } 290 LCRYPTO_ALIAS(X509_STORE_up_ref); 291 292 X509_LOOKUP * 293 X509_STORE_add_lookup(X509_STORE *store, X509_LOOKUP_METHOD *method) 294 { 295 STACK_OF(X509_LOOKUP) *sk; 296 X509_LOOKUP *lu; 297 int i; 298 299 sk = store->get_cert_methods; 300 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 301 lu = sk_X509_LOOKUP_value(sk, i); 302 if (method == lu->method) { 303 return lu; 304 } 305 } 306 307 if ((lu = X509_LOOKUP_new(method)) == NULL) 308 return NULL; 309 310 lu->store_ctx = store; 311 if (sk_X509_LOOKUP_push(store->get_cert_methods, lu) <= 0) { 312 X509error(ERR_R_MALLOC_FAILURE); 313 X509_LOOKUP_free(lu); 314 return NULL; 315 } 316 317 return lu; 318 } 319 LCRYPTO_ALIAS(X509_STORE_add_lookup); 320 321 X509_OBJECT * 322 X509_STORE_CTX_get_obj_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type, 323 X509_NAME *name) 324 { 325 X509_OBJECT *obj; 326 327 if ((obj = X509_OBJECT_new()) == NULL) 328 return NULL; 329 if (!X509_STORE_CTX_get_by_subject(vs, type, name, obj)) { 330 X509_OBJECT_free(obj); 331 return NULL; 332 } 333 334 return obj; 335 } 336 LCRYPTO_ALIAS(X509_STORE_CTX_get_obj_by_subject); 337 338 int 339 X509_STORE_CTX_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type, 340 X509_NAME *name, X509_OBJECT *ret) 341 { 342 X509_STORE *ctx = vs->store; 343 X509_LOOKUP *lu; 344 X509_OBJECT stmp, *tmp; 345 int i; 346 347 if (ctx == NULL) 348 return 0; 349 350 memset(&stmp, 0, sizeof(stmp)); 351 352 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 353 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name); 354 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 355 356 if (tmp == NULL || type == X509_LU_CRL) { 357 for (i = 0; i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) { 358 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i); 359 if (X509_LOOKUP_by_subject(lu, type, name, &stmp) != 0) { 360 tmp = &stmp; 361 break; 362 } 363 } 364 if (tmp == NULL) 365 return 0; 366 } 367 368 if (!X509_OBJECT_up_ref_count(tmp)) 369 return 0; 370 371 *ret = *tmp; 372 373 return 1; 374 } 375 LCRYPTO_ALIAS(X509_STORE_CTX_get_by_subject); 376 377 /* Add obj to the store. Takes ownership of obj. */ 378 static int 379 X509_STORE_add_object(X509_STORE *store, X509_OBJECT *obj) 380 { 381 int ret = 0; 382 383 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 384 385 if (X509_OBJECT_retrieve_match(store->objs, obj) != NULL) { 386 /* Object is already present in the store. That's fine. */ 387 ret = 1; 388 goto out; 389 } 390 391 if (sk_X509_OBJECT_push(store->objs, obj) <= 0) { 392 X509error(ERR_R_MALLOC_FAILURE); 393 goto out; 394 } 395 396 obj = NULL; 397 ret = 1; 398 399 out: 400 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 401 X509_OBJECT_free(obj); 402 403 return ret; 404 } 405 406 int 407 X509_STORE_add_cert(X509_STORE *store, X509 *x) 408 { 409 X509_OBJECT *obj; 410 411 if (x == NULL) 412 return 0; 413 414 if ((obj = X509_OBJECT_new()) == NULL) 415 return 0; 416 417 if (!X509_up_ref(x)) { 418 X509_OBJECT_free(obj); 419 return 0; 420 } 421 422 obj->type = X509_LU_X509; 423 obj->data.x509 = x; 424 425 return X509_STORE_add_object(store, obj); 426 } 427 LCRYPTO_ALIAS(X509_STORE_add_cert); 428 429 int 430 X509_STORE_add_crl(X509_STORE *store, X509_CRL *x) 431 { 432 X509_OBJECT *obj; 433 434 if (x == NULL) 435 return 0; 436 437 if ((obj = X509_OBJECT_new()) == NULL) 438 return 0; 439 440 if (!X509_CRL_up_ref(x)) { 441 X509_OBJECT_free(obj); 442 return 0; 443 } 444 445 obj->type = X509_LU_CRL; 446 obj->data.crl = x; 447 448 return X509_STORE_add_object(store, obj); 449 } 450 LCRYPTO_ALIAS(X509_STORE_add_crl); 451 452 int 453 X509_OBJECT_up_ref_count(X509_OBJECT *a) 454 { 455 switch (a->type) { 456 case X509_LU_X509: 457 return X509_up_ref(a->data.x509); 458 case X509_LU_CRL: 459 return X509_CRL_up_ref(a->data.crl); 460 } 461 return 1; 462 } 463 LCRYPTO_ALIAS(X509_OBJECT_up_ref_count); 464 465 X509_LOOKUP_TYPE 466 X509_OBJECT_get_type(const X509_OBJECT *a) 467 { 468 return a->type; 469 } 470 LCRYPTO_ALIAS(X509_OBJECT_get_type); 471 472 static int 473 x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type, 474 X509_NAME *name, int *pnmatch) 475 { 476 X509_OBJECT stmp; 477 X509 x509_s; 478 X509_CINF cinf_s; 479 X509_CRL crl_s; 480 X509_CRL_INFO crl_info_s; 481 int idx; 482 483 stmp.type = type; 484 switch (type) { 485 case X509_LU_X509: 486 stmp.data.x509 = &x509_s; 487 x509_s.cert_info = &cinf_s; 488 cinf_s.subject = name; 489 break; 490 case X509_LU_CRL: 491 stmp.data.crl = &crl_s; 492 crl_s.crl = &crl_info_s; 493 crl_info_s.issuer = name; 494 break; 495 default: 496 return -1; 497 } 498 499 idx = sk_X509_OBJECT_find(h, &stmp); 500 if (idx >= 0 && pnmatch) { 501 int tidx; 502 const X509_OBJECT *tobj, *pstmp; 503 504 *pnmatch = 1; 505 pstmp = &stmp; 506 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) { 507 tobj = sk_X509_OBJECT_value(h, tidx); 508 if (x509_object_cmp(&tobj, &pstmp)) 509 break; 510 (*pnmatch)++; 511 } 512 } 513 return idx; 514 } 515 516 int 517 X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type, 518 X509_NAME *name) 519 { 520 return x509_object_idx_cnt(h, type, name, NULL); 521 } 522 LCRYPTO_ALIAS(X509_OBJECT_idx_by_subject); 523 524 X509_OBJECT * 525 X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, X509_LOOKUP_TYPE type, 526 X509_NAME *name) 527 { 528 int idx; 529 530 idx = X509_OBJECT_idx_by_subject(h, type, name); 531 if (idx == -1) 532 return NULL; 533 return sk_X509_OBJECT_value(h, idx); 534 } 535 LCRYPTO_ALIAS(X509_OBJECT_retrieve_by_subject); 536 537 X509 * 538 X509_OBJECT_get0_X509(const X509_OBJECT *xo) 539 { 540 if (xo != NULL && xo->type == X509_LU_X509) 541 return xo->data.x509; 542 return NULL; 543 } 544 LCRYPTO_ALIAS(X509_OBJECT_get0_X509); 545 546 X509_CRL * 547 X509_OBJECT_get0_X509_CRL(X509_OBJECT *xo) 548 { 549 if (xo != NULL && xo->type == X509_LU_CRL) 550 return xo->data.crl; 551 return NULL; 552 } 553 LCRYPTO_ALIAS(X509_OBJECT_get0_X509_CRL); 554 555 static STACK_OF(X509) * 556 X509_get1_certs_from_cache(X509_STORE *store, X509_NAME *name) 557 { 558 STACK_OF(X509) *sk = NULL; 559 X509 *x = NULL; 560 X509_OBJECT *obj; 561 int i, idx, cnt; 562 563 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 564 565 idx = x509_object_idx_cnt(store->objs, X509_LU_X509, name, &cnt); 566 if (idx < 0) 567 goto err; 568 569 if ((sk = sk_X509_new_null()) == NULL) 570 goto err; 571 572 for (i = 0; i < cnt; i++, idx++) { 573 obj = sk_X509_OBJECT_value(store->objs, idx); 574 575 x = obj->data.x509; 576 if (!X509_up_ref(x)) { 577 x = NULL; 578 goto err; 579 } 580 if (!sk_X509_push(sk, x)) 581 goto err; 582 } 583 584 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 585 586 return sk; 587 588 err: 589 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 590 sk_X509_pop_free(sk, X509_free); 591 X509_free(x); 592 593 return NULL; 594 } 595 596 STACK_OF(X509) * 597 X509_STORE_CTX_get1_certs(X509_STORE_CTX *ctx, X509_NAME *name) 598 { 599 X509_STORE *store = ctx->store; 600 STACK_OF(X509) *sk; 601 X509_OBJECT *obj; 602 603 if (store == NULL) 604 return NULL; 605 606 if ((sk = X509_get1_certs_from_cache(store, name)) != NULL) 607 return sk; 608 609 /* Nothing found: do lookup to possibly add new objects to cache. */ 610 obj = X509_STORE_CTX_get_obj_by_subject(ctx, X509_LU_X509, name); 611 if (obj == NULL) 612 return NULL; 613 X509_OBJECT_free(obj); 614 615 return X509_get1_certs_from_cache(store, name); 616 } 617 LCRYPTO_ALIAS(X509_STORE_CTX_get1_certs); 618 619 STACK_OF(X509_CRL) * 620 X509_STORE_CTX_get1_crls(X509_STORE_CTX *ctx, X509_NAME *name) 621 { 622 X509_STORE *store = ctx->store; 623 STACK_OF(X509_CRL) *sk = NULL; 624 X509_CRL *x = NULL; 625 X509_OBJECT *obj = NULL; 626 int i, idx, cnt; 627 628 if (store == NULL) 629 return NULL; 630 631 /* Always do lookup to possibly add new CRLs to cache */ 632 obj = X509_STORE_CTX_get_obj_by_subject(ctx, X509_LU_CRL, name); 633 if (obj == NULL) 634 return NULL; 635 636 X509_OBJECT_free(obj); 637 obj = NULL; 638 639 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 640 idx = x509_object_idx_cnt(store->objs, X509_LU_CRL, name, &cnt); 641 if (idx < 0) 642 goto err; 643 644 if ((sk = sk_X509_CRL_new_null()) == NULL) 645 goto err; 646 647 for (i = 0; i < cnt; i++, idx++) { 648 obj = sk_X509_OBJECT_value(store->objs, idx); 649 650 x = obj->data.crl; 651 if (!X509_CRL_up_ref(x)) { 652 x = NULL; 653 goto err; 654 } 655 if (!sk_X509_CRL_push(sk, x)) 656 goto err; 657 } 658 659 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 660 return sk; 661 662 err: 663 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 664 X509_CRL_free(x); 665 sk_X509_CRL_pop_free(sk, X509_CRL_free); 666 return NULL; 667 } 668 LCRYPTO_ALIAS(X509_STORE_CTX_get1_crls); 669 670 X509_OBJECT * 671 X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x) 672 { 673 int idx, i; 674 X509_OBJECT *obj; 675 676 idx = sk_X509_OBJECT_find(h, x); 677 if (idx == -1) 678 return NULL; 679 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL)) 680 return sk_X509_OBJECT_value(h, idx); 681 for (i = idx; i < sk_X509_OBJECT_num(h); i++) { 682 obj = sk_X509_OBJECT_value(h, i); 683 if (x509_object_cmp((const X509_OBJECT **)&obj, 684 (const X509_OBJECT **)&x)) 685 return NULL; 686 if (x->type == X509_LU_X509) { 687 if (!X509_cmp(obj->data.x509, x->data.x509)) 688 return obj; 689 } else if (x->type == X509_LU_CRL) { 690 if (!X509_CRL_match(obj->data.crl, x->data.crl)) 691 return obj; 692 } else 693 return obj; 694 } 695 return NULL; 696 } 697 LCRYPTO_ALIAS(X509_OBJECT_retrieve_match); 698 699 /* Try to get issuer certificate from store. Due to limitations 700 * of the API this can only retrieve a single certificate matching 701 * a given subject name. However it will fill the cache with all 702 * matching certificates, so we can examine the cache for all 703 * matches. 704 * 705 * Return values are: 706 * 1 lookup successful. 707 * 0 certificate not found. 708 * -1 some other error. 709 */ 710 int 711 X509_STORE_CTX_get1_issuer(X509 **out_issuer, X509_STORE_CTX *ctx, X509 *x) 712 { 713 X509_NAME *xn; 714 X509_OBJECT *obj, *pobj; 715 X509 *issuer = NULL; 716 int i, idx, ret; 717 718 *out_issuer = NULL; 719 720 xn = X509_get_issuer_name(x); 721 obj = X509_STORE_CTX_get_obj_by_subject(ctx, X509_LU_X509, xn); 722 if (obj == NULL) 723 return 0; 724 725 if ((issuer = X509_OBJECT_get0_X509(obj)) == NULL) { 726 X509_OBJECT_free(obj); 727 return 0; 728 } 729 if (!X509_up_ref(issuer)) { 730 X509_OBJECT_free(obj); 731 return -1; 732 } 733 734 /* If certificate matches all OK */ 735 if (ctx->check_issued(ctx, x, issuer)) { 736 if (x509_check_cert_time(ctx, issuer, -1)) { 737 *out_issuer = issuer; 738 X509_OBJECT_free(obj); 739 return 1; 740 } 741 } 742 X509_free(issuer); 743 issuer = NULL; 744 X509_OBJECT_free(obj); 745 obj = NULL; 746 747 if (ctx->store == NULL) 748 return 0; 749 750 /* Else find index of first cert accepted by 'check_issued' */ 751 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 752 idx = X509_OBJECT_idx_by_subject(ctx->store->objs, X509_LU_X509, xn); 753 if (idx != -1) /* should be true as we've had at least one match */ { 754 /* Look through all matching certs for suitable issuer */ 755 for (i = idx; i < sk_X509_OBJECT_num(ctx->store->objs); i++) { 756 pobj = sk_X509_OBJECT_value(ctx->store->objs, i); 757 /* See if we've run past the matches */ 758 if (pobj->type != X509_LU_X509) 759 break; 760 if (X509_NAME_cmp(xn, 761 X509_get_subject_name(pobj->data.x509))) 762 break; 763 if (ctx->check_issued(ctx, x, pobj->data.x509)) { 764 issuer = pobj->data.x509; 765 /* 766 * If times check, exit with match, 767 * otherwise keep looking. Leave last 768 * match in issuer so we return nearest 769 * match if no certificate time is OK. 770 */ 771 if (x509_check_cert_time(ctx, issuer, -1)) 772 break; 773 } 774 } 775 } 776 ret = 0; 777 if (issuer != NULL) { 778 if (!X509_up_ref(issuer)) { 779 ret = -1; 780 } else { 781 *out_issuer = issuer; 782 ret = 1; 783 } 784 } 785 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 786 return ret; 787 } 788 LCRYPTO_ALIAS(X509_STORE_CTX_get1_issuer); 789 790 STACK_OF(X509_OBJECT) * 791 X509_STORE_get0_objects(X509_STORE *xs) 792 { 793 return xs->objs; 794 } 795 LCRYPTO_ALIAS(X509_STORE_get0_objects); 796 797 void * 798 X509_STORE_get_ex_data(X509_STORE *xs, int idx) 799 { 800 return CRYPTO_get_ex_data(&xs->ex_data, idx); 801 } 802 LCRYPTO_ALIAS(X509_STORE_get_ex_data); 803 804 int 805 X509_STORE_set_ex_data(X509_STORE *xs, int idx, void *data) 806 { 807 return CRYPTO_set_ex_data(&xs->ex_data, idx, data); 808 } 809 LCRYPTO_ALIAS(X509_STORE_set_ex_data); 810 811 int 812 X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags) 813 { 814 return X509_VERIFY_PARAM_set_flags(ctx->param, flags); 815 } 816 LCRYPTO_ALIAS(X509_STORE_set_flags); 817 818 int 819 X509_STORE_set_depth(X509_STORE *ctx, int depth) 820 { 821 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 822 return 1; 823 } 824 LCRYPTO_ALIAS(X509_STORE_set_depth); 825 826 int 827 X509_STORE_set_purpose(X509_STORE *ctx, int purpose) 828 { 829 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose); 830 } 831 LCRYPTO_ALIAS(X509_STORE_set_purpose); 832 833 int 834 X509_STORE_set_trust(X509_STORE *ctx, int trust) 835 { 836 return X509_VERIFY_PARAM_set_trust(ctx->param, trust); 837 } 838 LCRYPTO_ALIAS(X509_STORE_set_trust); 839 840 int 841 X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param) 842 { 843 return X509_VERIFY_PARAM_set1(ctx->param, param); 844 } 845 LCRYPTO_ALIAS(X509_STORE_set1_param); 846 847 X509_VERIFY_PARAM * 848 X509_STORE_get0_param(X509_STORE *ctx) 849 { 850 return ctx->param; 851 } 852 LCRYPTO_ALIAS(X509_STORE_get0_param); 853 854 void 855 X509_STORE_set_verify(X509_STORE *store, X509_STORE_CTX_verify_fn verify) 856 { 857 store->verify = verify; 858 } 859 LCRYPTO_ALIAS(X509_STORE_set_verify); 860 861 X509_STORE_CTX_verify_fn 862 X509_STORE_get_verify(X509_STORE *store) 863 { 864 return store->verify; 865 } 866 LCRYPTO_ALIAS(X509_STORE_get_verify); 867 868 void 869 X509_STORE_set_verify_cb(X509_STORE *store, X509_STORE_CTX_verify_cb verify_cb) 870 { 871 store->verify_cb = verify_cb; 872 } 873 LCRYPTO_ALIAS(X509_STORE_set_verify_cb); 874 875 X509_STORE_CTX_verify_cb 876 X509_STORE_get_verify_cb(X509_STORE *store) 877 { 878 return store->verify_cb; 879 } 880 LCRYPTO_ALIAS(X509_STORE_get_verify_cb); 881