1 /* crypto/x509/x509_lu.c */ 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 "cryptlib.h" 61 #include <openssl/lhash.h> 62 #include <openssl/x509.h> 63 #include <openssl/x509v3.h> 64 65 X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method) 66 { 67 X509_LOOKUP *ret; 68 69 ret = (X509_LOOKUP *)OPENSSL_malloc(sizeof(X509_LOOKUP)); 70 if (ret == NULL) 71 return NULL; 72 73 ret->init = 0; 74 ret->skip = 0; 75 ret->method = method; 76 ret->method_data = NULL; 77 ret->store_ctx = NULL; 78 if ((method->new_item != NULL) && !method->new_item(ret)) { 79 OPENSSL_free(ret); 80 return NULL; 81 } 82 return ret; 83 } 84 85 void X509_LOOKUP_free(X509_LOOKUP *ctx) 86 { 87 if (ctx == NULL) 88 return; 89 if ((ctx->method != NULL) && (ctx->method->free != NULL)) 90 (*ctx->method->free) (ctx); 91 OPENSSL_free(ctx); 92 } 93 94 int X509_LOOKUP_init(X509_LOOKUP *ctx) 95 { 96 if (ctx->method == NULL) 97 return 0; 98 if (ctx->method->init != NULL) 99 return ctx->method->init(ctx); 100 else 101 return 1; 102 } 103 104 int X509_LOOKUP_shutdown(X509_LOOKUP *ctx) 105 { 106 if (ctx->method == NULL) 107 return 0; 108 if (ctx->method->shutdown != NULL) 109 return ctx->method->shutdown(ctx); 110 else 111 return 1; 112 } 113 114 int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl, 115 char **ret) 116 { 117 if (ctx->method == NULL) 118 return -1; 119 if (ctx->method->ctrl != NULL) 120 return ctx->method->ctrl(ctx, cmd, argc, argl, ret); 121 else 122 return 1; 123 } 124 125 int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name, 126 X509_OBJECT *ret) 127 { 128 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL)) 129 return X509_LU_FAIL; 130 if (ctx->skip) 131 return 0; 132 return ctx->method->get_by_subject(ctx, type, name, ret); 133 } 134 135 int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name, 136 ASN1_INTEGER *serial, X509_OBJECT *ret) 137 { 138 if ((ctx->method == NULL) || (ctx->method->get_by_issuer_serial == NULL)) 139 return X509_LU_FAIL; 140 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret); 141 } 142 143 int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type, 144 unsigned char *bytes, int len, 145 X509_OBJECT *ret) 146 { 147 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL)) 148 return X509_LU_FAIL; 149 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret); 150 } 151 152 int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len, 153 X509_OBJECT *ret) 154 { 155 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL)) 156 return X509_LU_FAIL; 157 return ctx->method->get_by_alias(ctx, type, str, len, ret); 158 } 159 160 static int x509_object_cmp(const X509_OBJECT *const *a, 161 const X509_OBJECT *const *b) 162 { 163 int ret; 164 165 ret = ((*a)->type - (*b)->type); 166 if (ret) 167 return ret; 168 switch ((*a)->type) { 169 case X509_LU_X509: 170 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509); 171 break; 172 case X509_LU_CRL: 173 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl); 174 break; 175 default: 176 /* abort(); */ 177 return 0; 178 } 179 return ret; 180 } 181 182 X509_STORE *X509_STORE_new(void) 183 { 184 X509_STORE *ret; 185 186 if ((ret = (X509_STORE *)OPENSSL_malloc(sizeof(X509_STORE))) == NULL) 187 return NULL; 188 ret->objs = sk_X509_OBJECT_new(x509_object_cmp); 189 ret->cache = 1; 190 ret->get_cert_methods = sk_X509_LOOKUP_new_null(); 191 ret->verify = 0; 192 ret->verify_cb = 0; 193 194 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL) 195 return NULL; 196 197 ret->get_issuer = 0; 198 ret->check_issued = 0; 199 ret->check_revocation = 0; 200 ret->get_crl = 0; 201 ret->check_crl = 0; 202 ret->cert_crl = 0; 203 ret->lookup_certs = 0; 204 ret->lookup_crls = 0; 205 ret->cleanup = 0; 206 207 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data)) { 208 sk_X509_OBJECT_free(ret->objs); 209 OPENSSL_free(ret); 210 return NULL; 211 } 212 213 ret->references = 1; 214 return ret; 215 } 216 217 static void cleanup(X509_OBJECT *a) 218 { 219 if (!a) 220 return; 221 if (a->type == X509_LU_X509) { 222 X509_free(a->data.x509); 223 } else if (a->type == X509_LU_CRL) { 224 X509_CRL_free(a->data.crl); 225 } else { 226 /* abort(); */ 227 } 228 229 OPENSSL_free(a); 230 } 231 232 void X509_STORE_free(X509_STORE *vfy) 233 { 234 int i; 235 STACK_OF(X509_LOOKUP) *sk; 236 X509_LOOKUP *lu; 237 238 if (vfy == NULL) 239 return; 240 241 i = CRYPTO_add(&vfy->references, -1, CRYPTO_LOCK_X509_STORE); 242 #ifdef REF_PRINT 243 REF_PRINT("X509_STORE", vfy); 244 #endif 245 if (i > 0) 246 return; 247 #ifdef REF_CHECK 248 if (i < 0) { 249 fprintf(stderr, "X509_STORE_free, bad reference count\n"); 250 abort(); /* ok */ 251 } 252 #endif 253 254 sk = vfy->get_cert_methods; 255 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 256 lu = sk_X509_LOOKUP_value(sk, i); 257 X509_LOOKUP_shutdown(lu); 258 X509_LOOKUP_free(lu); 259 } 260 sk_X509_LOOKUP_free(sk); 261 sk_X509_OBJECT_pop_free(vfy->objs, cleanup); 262 263 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data); 264 if (vfy->param) 265 X509_VERIFY_PARAM_free(vfy->param); 266 OPENSSL_free(vfy); 267 } 268 269 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m) 270 { 271 int i; 272 STACK_OF(X509_LOOKUP) *sk; 273 X509_LOOKUP *lu; 274 275 sk = v->get_cert_methods; 276 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 277 lu = sk_X509_LOOKUP_value(sk, i); 278 if (m == lu->method) { 279 return lu; 280 } 281 } 282 /* a new one */ 283 lu = X509_LOOKUP_new(m); 284 if (lu == NULL) 285 return NULL; 286 else { 287 lu->store_ctx = v; 288 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu)) 289 return lu; 290 else { 291 X509_LOOKUP_free(lu); 292 return NULL; 293 } 294 } 295 } 296 297 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name, 298 X509_OBJECT *ret) 299 { 300 X509_STORE *ctx = vs->ctx; 301 X509_LOOKUP *lu; 302 X509_OBJECT stmp, *tmp; 303 int i, j; 304 305 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 306 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name); 307 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 308 309 if (tmp == NULL || type == X509_LU_CRL) { 310 for (i = vs->current_method; 311 i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) { 312 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i); 313 j = X509_LOOKUP_by_subject(lu, type, name, &stmp); 314 if (j < 0) { 315 vs->current_method = j; 316 return j; 317 } else if (j) { 318 tmp = &stmp; 319 break; 320 } 321 } 322 vs->current_method = 0; 323 if (tmp == NULL) 324 return 0; 325 } 326 327 /*- if (ret->data.ptr != NULL) 328 X509_OBJECT_free_contents(ret); */ 329 330 ret->type = tmp->type; 331 ret->data.ptr = tmp->data.ptr; 332 333 X509_OBJECT_up_ref_count(ret); 334 335 return 1; 336 } 337 338 int X509_STORE_add_cert(X509_STORE *ctx, X509 *x) 339 { 340 X509_OBJECT *obj; 341 int ret = 1; 342 343 if (x == NULL) 344 return 0; 345 obj = (X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT)); 346 if (obj == NULL) { 347 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE); 348 return 0; 349 } 350 obj->type = X509_LU_X509; 351 obj->data.x509 = x; 352 353 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 354 355 X509_OBJECT_up_ref_count(obj); 356 357 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) { 358 X509_OBJECT_free_contents(obj); 359 OPENSSL_free(obj); 360 X509err(X509_F_X509_STORE_ADD_CERT, 361 X509_R_CERT_ALREADY_IN_HASH_TABLE); 362 ret = 0; 363 } else 364 sk_X509_OBJECT_push(ctx->objs, obj); 365 366 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 367 368 return ret; 369 } 370 371 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x) 372 { 373 X509_OBJECT *obj; 374 int ret = 1; 375 376 if (x == NULL) 377 return 0; 378 obj = (X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT)); 379 if (obj == NULL) { 380 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE); 381 return 0; 382 } 383 obj->type = X509_LU_CRL; 384 obj->data.crl = x; 385 386 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 387 388 X509_OBJECT_up_ref_count(obj); 389 390 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) { 391 X509_OBJECT_free_contents(obj); 392 OPENSSL_free(obj); 393 X509err(X509_F_X509_STORE_ADD_CRL, X509_R_CERT_ALREADY_IN_HASH_TABLE); 394 ret = 0; 395 } else 396 sk_X509_OBJECT_push(ctx->objs, obj); 397 398 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 399 400 return ret; 401 } 402 403 void X509_OBJECT_up_ref_count(X509_OBJECT *a) 404 { 405 switch (a->type) { 406 case X509_LU_X509: 407 CRYPTO_add(&a->data.x509->references, 1, CRYPTO_LOCK_X509); 408 break; 409 case X509_LU_CRL: 410 CRYPTO_add(&a->data.crl->references, 1, CRYPTO_LOCK_X509_CRL); 411 break; 412 } 413 } 414 415 void X509_OBJECT_free_contents(X509_OBJECT *a) 416 { 417 switch (a->type) { 418 case X509_LU_X509: 419 X509_free(a->data.x509); 420 break; 421 case X509_LU_CRL: 422 X509_CRL_free(a->data.crl); 423 break; 424 } 425 } 426 427 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type, 428 X509_NAME *name, int *pnmatch) 429 { 430 X509_OBJECT stmp; 431 X509 x509_s; 432 X509_CINF cinf_s; 433 X509_CRL crl_s; 434 X509_CRL_INFO crl_info_s; 435 int idx; 436 437 stmp.type = type; 438 switch (type) { 439 case X509_LU_X509: 440 stmp.data.x509 = &x509_s; 441 x509_s.cert_info = &cinf_s; 442 cinf_s.subject = name; 443 break; 444 case X509_LU_CRL: 445 stmp.data.crl = &crl_s; 446 crl_s.crl = &crl_info_s; 447 crl_info_s.issuer = name; 448 break; 449 default: 450 /* abort(); */ 451 return -1; 452 } 453 454 idx = sk_X509_OBJECT_find(h, &stmp); 455 if (idx >= 0 && pnmatch) { 456 int tidx; 457 const X509_OBJECT *tobj, *pstmp; 458 *pnmatch = 1; 459 pstmp = &stmp; 460 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) { 461 tobj = sk_X509_OBJECT_value(h, tidx); 462 if (x509_object_cmp(&tobj, &pstmp)) 463 break; 464 (*pnmatch)++; 465 } 466 } 467 return idx; 468 } 469 470 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type, 471 X509_NAME *name) 472 { 473 return x509_object_idx_cnt(h, type, name, NULL); 474 } 475 476 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, 477 int type, X509_NAME *name) 478 { 479 int idx; 480 idx = X509_OBJECT_idx_by_subject(h, type, name); 481 if (idx == -1) 482 return NULL; 483 return sk_X509_OBJECT_value(h, idx); 484 } 485 486 STACK_OF(X509) *X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm) 487 { 488 int i, idx, cnt; 489 STACK_OF(X509) *sk; 490 X509 *x; 491 X509_OBJECT *obj; 492 sk = sk_X509_new_null(); 493 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 494 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt); 495 if (idx < 0) { 496 /* 497 * Nothing found in cache: do lookup to possibly add new objects to 498 * cache 499 */ 500 X509_OBJECT xobj; 501 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 502 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) { 503 sk_X509_free(sk); 504 return NULL; 505 } 506 X509_OBJECT_free_contents(&xobj); 507 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 508 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt); 509 if (idx < 0) { 510 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 511 sk_X509_free(sk); 512 return NULL; 513 } 514 } 515 for (i = 0; i < cnt; i++, idx++) { 516 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx); 517 x = obj->data.x509; 518 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509); 519 if (!sk_X509_push(sk, x)) { 520 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 521 X509_free(x); 522 sk_X509_pop_free(sk, X509_free); 523 return NULL; 524 } 525 } 526 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 527 return sk; 528 529 } 530 531 STACK_OF(X509_CRL) *X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm) 532 { 533 int i, idx, cnt; 534 STACK_OF(X509_CRL) *sk; 535 X509_CRL *x; 536 X509_OBJECT *obj, xobj; 537 sk = sk_X509_CRL_new_null(); 538 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 539 540 /* 541 * Always do lookup to possibly add new CRLs to cache 542 */ 543 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 544 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) { 545 sk_X509_CRL_free(sk); 546 return NULL; 547 } 548 X509_OBJECT_free_contents(&xobj); 549 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 550 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt); 551 if (idx < 0) { 552 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 553 sk_X509_CRL_free(sk); 554 return NULL; 555 } 556 557 for (i = 0; i < cnt; i++, idx++) { 558 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx); 559 x = obj->data.crl; 560 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL); 561 if (!sk_X509_CRL_push(sk, x)) { 562 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 563 X509_CRL_free(x); 564 sk_X509_CRL_pop_free(sk, X509_CRL_free); 565 return NULL; 566 } 567 } 568 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 569 return sk; 570 } 571 572 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, 573 X509_OBJECT *x) 574 { 575 int idx, i; 576 X509_OBJECT *obj; 577 idx = sk_X509_OBJECT_find(h, x); 578 if (idx == -1) 579 return NULL; 580 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL)) 581 return sk_X509_OBJECT_value(h, idx); 582 for (i = idx; i < sk_X509_OBJECT_num(h); i++) { 583 obj = sk_X509_OBJECT_value(h, i); 584 if (x509_object_cmp 585 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x)) 586 return NULL; 587 if (x->type == X509_LU_X509) { 588 if (!X509_cmp(obj->data.x509, x->data.x509)) 589 return obj; 590 } else if (x->type == X509_LU_CRL) { 591 if (!X509_CRL_match(obj->data.crl, x->data.crl)) 592 return obj; 593 } else 594 return obj; 595 } 596 return NULL; 597 } 598 599 /*- 600 * Try to get issuer certificate from store. Due to limitations 601 * of the API this can only retrieve a single certificate matching 602 * a given subject name. However it will fill the cache with all 603 * matching certificates, so we can examine the cache for all 604 * matches. 605 * 606 * Return values are: 607 * 1 lookup successful. 608 * 0 certificate not found. 609 * -1 some other error. 610 */ 611 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x) 612 { 613 X509_NAME *xn; 614 X509_OBJECT obj, *pobj; 615 int i, ok, idx, ret; 616 xn = X509_get_issuer_name(x); 617 ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj); 618 if (ok != X509_LU_X509) { 619 if (ok == X509_LU_RETRY) { 620 X509_OBJECT_free_contents(&obj); 621 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER, X509_R_SHOULD_RETRY); 622 return -1; 623 } else if (ok != X509_LU_FAIL) { 624 X509_OBJECT_free_contents(&obj); 625 /* not good :-(, break anyway */ 626 return -1; 627 } 628 return 0; 629 } 630 /* If certificate matches all OK */ 631 if (ctx->check_issued(ctx, x, obj.data.x509)) { 632 *issuer = obj.data.x509; 633 return 1; 634 } 635 X509_OBJECT_free_contents(&obj); 636 637 /* Else find index of first cert accepted by 'check_issued' */ 638 ret = 0; 639 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 640 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn); 641 if (idx != -1) { /* should be true as we've had at least one 642 * match */ 643 /* Look through all matching certs for suitable issuer */ 644 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) { 645 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i); 646 /* See if we've run past the matches */ 647 if (pobj->type != X509_LU_X509) 648 break; 649 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509))) 650 break; 651 if (ctx->check_issued(ctx, x, pobj->data.x509)) { 652 *issuer = pobj->data.x509; 653 X509_OBJECT_up_ref_count(pobj); 654 ret = 1; 655 break; 656 } 657 } 658 } 659 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 660 return ret; 661 } 662 663 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags) 664 { 665 return X509_VERIFY_PARAM_set_flags(ctx->param, flags); 666 } 667 668 int X509_STORE_set_depth(X509_STORE *ctx, int depth) 669 { 670 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 671 return 1; 672 } 673 674 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose) 675 { 676 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose); 677 } 678 679 int X509_STORE_set_trust(X509_STORE *ctx, int trust) 680 { 681 return X509_VERIFY_PARAM_set_trust(ctx->param, trust); 682 } 683 684 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param) 685 { 686 return X509_VERIFY_PARAM_set1(ctx->param, param); 687 } 688 689 void X509_STORE_set_verify_cb(X509_STORE *ctx, 690 int (*verify_cb) (int, X509_STORE_CTX *)) 691 { 692 ctx->verify_cb = verify_cb; 693 } 694 695 void X509_STORE_set_lookup_crls_cb(X509_STORE *ctx, 696 STACK_OF(X509_CRL) *(*cb) (X509_STORE_CTX 697 *ctx, 698 X509_NAME *nm)) 699 { 700 ctx->lookup_crls = cb; 701 } 702 703 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx) 704 { 705 return ctx->ctx; 706 } 707 708 IMPLEMENT_STACK_OF(X509_LOOKUP) 709 710 IMPLEMENT_STACK_OF(X509_OBJECT) 711