1 /* $OpenBSD: x509_lu.c,v 1.19 2015/02/10 11:22:21 jsing 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 61 #include <openssl/err.h> 62 #include <openssl/lhash.h> 63 #include <openssl/x509.h> 64 #include <openssl/x509v3.h> 65 #include "x509_lcl.h" 66 67 X509_LOOKUP * 68 X509_LOOKUP_new(X509_LOOKUP_METHOD *method) 69 { 70 X509_LOOKUP *ret; 71 72 ret = malloc(sizeof(X509_LOOKUP)); 73 if (ret == NULL) 74 return NULL; 75 76 ret->init = 0; 77 ret->skip = 0; 78 ret->method = method; 79 ret->method_data = NULL; 80 ret->store_ctx = NULL; 81 if ((method->new_item != NULL) && !method->new_item(ret)) { 82 free(ret); 83 return NULL; 84 } 85 return ret; 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 ctx->method->init(ctx); 105 else 106 return 1; 107 } 108 109 int 110 X509_LOOKUP_shutdown(X509_LOOKUP *ctx) 111 { 112 if (ctx->method == NULL) 113 return 0; 114 if (ctx->method->shutdown != NULL) 115 return ctx->method->shutdown(ctx); 116 else 117 return 1; 118 } 119 120 int 121 X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl, 122 char **ret) 123 { 124 if (ctx->method == NULL) 125 return -1; 126 if (ctx->method->ctrl != NULL) 127 return ctx->method->ctrl(ctx, cmd, argc, argl, ret); 128 else 129 return 1; 130 } 131 132 int 133 X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name, 134 X509_OBJECT *ret) 135 { 136 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL)) 137 return X509_LU_FAIL; 138 if (ctx->skip) 139 return 0; 140 return ctx->method->get_by_subject(ctx, type, name, ret); 141 } 142 143 int 144 X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name, 145 ASN1_INTEGER *serial, X509_OBJECT *ret) 146 { 147 if ((ctx->method == NULL) || 148 (ctx->method->get_by_issuer_serial == NULL)) 149 return X509_LU_FAIL; 150 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret); 151 } 152 153 int 154 X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type, unsigned char *bytes, 155 int len, X509_OBJECT *ret) 156 { 157 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL)) 158 return X509_LU_FAIL; 159 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret); 160 } 161 162 int 163 X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len, 164 X509_OBJECT *ret) 165 { 166 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL)) 167 return X509_LU_FAIL; 168 return ctx->method->get_by_alias(ctx, type, str, len, ret); 169 } 170 171 static int 172 x509_object_cmp(const X509_OBJECT * const *a, const X509_OBJECT * const *b) 173 { 174 int ret; 175 176 ret = ((*a)->type - (*b)->type); 177 if (ret) 178 return ret; 179 switch ((*a)->type) { 180 case X509_LU_X509: 181 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509); 182 break; 183 case X509_LU_CRL: 184 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl); 185 break; 186 default: 187 /* abort(); */ 188 return 0; 189 } 190 return ret; 191 } 192 193 X509_STORE * 194 X509_STORE_new(void) 195 { 196 X509_STORE *ret; 197 198 if ((ret = malloc(sizeof(X509_STORE))) == NULL) 199 return NULL; 200 ret->objs = sk_X509_OBJECT_new(x509_object_cmp); 201 ret->cache = 1; 202 ret->get_cert_methods = sk_X509_LOOKUP_new_null(); 203 ret->verify = 0; 204 ret->verify_cb = 0; 205 206 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL) 207 goto err; 208 209 ret->get_issuer = 0; 210 ret->check_issued = 0; 211 ret->check_revocation = 0; 212 ret->get_crl = 0; 213 ret->check_crl = 0; 214 ret->cert_crl = 0; 215 ret->lookup_certs = 0; 216 ret->lookup_crls = 0; 217 ret->cleanup = 0; 218 219 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data)) 220 goto err; 221 222 ret->references = 1; 223 return ret; 224 225 err: 226 X509_VERIFY_PARAM_free(ret->param); 227 sk_X509_LOOKUP_free(ret->get_cert_methods); 228 sk_X509_OBJECT_free(ret->objs); 229 free(ret); 230 return NULL; 231 } 232 233 static void 234 cleanup(X509_OBJECT *a) 235 { 236 if (a->type == X509_LU_X509) { 237 X509_free(a->data.x509); 238 } else if (a->type == X509_LU_CRL) { 239 X509_CRL_free(a->data.crl); 240 } else { 241 /* abort(); */ 242 } 243 244 free(a); 245 } 246 247 void 248 X509_STORE_free(X509_STORE *vfy) 249 { 250 int i; 251 STACK_OF(X509_LOOKUP) *sk; 252 X509_LOOKUP *lu; 253 254 if (vfy == NULL) 255 return; 256 257 i = CRYPTO_add(&vfy->references, -1, CRYPTO_LOCK_X509_STORE); 258 if (i > 0) 259 return; 260 261 sk = vfy->get_cert_methods; 262 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 263 lu = sk_X509_LOOKUP_value(sk, i); 264 X509_LOOKUP_shutdown(lu); 265 X509_LOOKUP_free(lu); 266 } 267 sk_X509_LOOKUP_free(sk); 268 sk_X509_OBJECT_pop_free(vfy->objs, cleanup); 269 270 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data); 271 X509_VERIFY_PARAM_free(vfy->param); 272 free(vfy); 273 } 274 275 X509_LOOKUP * 276 X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m) 277 { 278 int i; 279 STACK_OF(X509_LOOKUP) *sk; 280 X509_LOOKUP *lu; 281 282 sk = v->get_cert_methods; 283 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 284 lu = sk_X509_LOOKUP_value(sk, i); 285 if (m == lu->method) { 286 return lu; 287 } 288 } 289 /* a new one */ 290 lu = X509_LOOKUP_new(m); 291 if (lu == NULL) 292 return NULL; 293 else { 294 lu->store_ctx = v; 295 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu)) 296 return lu; 297 else { 298 X509_LOOKUP_free(lu); 299 return NULL; 300 } 301 } 302 } 303 304 int 305 X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name, 306 X509_OBJECT *ret) 307 { 308 X509_STORE *ctx = vs->ctx; 309 X509_LOOKUP *lu; 310 X509_OBJECT stmp, *tmp; 311 int i, j; 312 313 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 314 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name); 315 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 316 317 if (tmp == NULL || type == X509_LU_CRL) { 318 for (i = vs->current_method; 319 i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) { 320 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i); 321 j = X509_LOOKUP_by_subject(lu, type, name, &stmp); 322 if (j < 0) { 323 vs->current_method = j; 324 return j; 325 } else if (j) { 326 tmp = &stmp; 327 break; 328 } 329 } 330 vs->current_method = 0; 331 if (tmp == NULL) 332 return 0; 333 } 334 335 /* if (ret->data.ptr != NULL) 336 X509_OBJECT_free_contents(ret); */ 337 338 ret->type = tmp->type; 339 ret->data.ptr = tmp->data.ptr; 340 341 X509_OBJECT_up_ref_count(ret); 342 343 return 1; 344 } 345 346 int 347 X509_STORE_add_cert(X509_STORE *ctx, X509 *x) 348 { 349 X509_OBJECT *obj; 350 int ret = 1; 351 352 if (x == NULL) 353 return 0; 354 obj = malloc(sizeof(X509_OBJECT)); 355 if (obj == NULL) { 356 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE); 357 return 0; 358 } 359 obj->type = X509_LU_X509; 360 obj->data.x509 = x; 361 362 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 363 364 X509_OBJECT_up_ref_count(obj); 365 366 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) { 367 X509_OBJECT_free_contents(obj); 368 free(obj); 369 X509err(X509_F_X509_STORE_ADD_CERT, 370 X509_R_CERT_ALREADY_IN_HASH_TABLE); 371 ret = 0; 372 } else 373 sk_X509_OBJECT_push(ctx->objs, obj); 374 375 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 376 377 return ret; 378 } 379 380 int 381 X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x) 382 { 383 X509_OBJECT *obj; 384 int ret = 1; 385 386 if (x == NULL) 387 return 0; 388 obj = malloc(sizeof(X509_OBJECT)); 389 if (obj == NULL) { 390 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE); 391 return 0; 392 } 393 obj->type = X509_LU_CRL; 394 obj->data.crl = x; 395 396 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 397 398 X509_OBJECT_up_ref_count(obj); 399 400 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) { 401 X509_OBJECT_free_contents(obj); 402 free(obj); 403 X509err(X509_F_X509_STORE_ADD_CRL, 404 X509_R_CERT_ALREADY_IN_HASH_TABLE); 405 ret = 0; 406 } else 407 sk_X509_OBJECT_push(ctx->objs, obj); 408 409 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 410 411 return ret; 412 } 413 414 void 415 X509_OBJECT_up_ref_count(X509_OBJECT *a) 416 { 417 switch (a->type) { 418 case X509_LU_X509: 419 CRYPTO_add(&a->data.x509->references, 1, CRYPTO_LOCK_X509); 420 break; 421 case X509_LU_CRL: 422 CRYPTO_add(&a->data.crl->references, 1, CRYPTO_LOCK_X509_CRL); 423 break; 424 } 425 } 426 427 void 428 X509_OBJECT_free_contents(X509_OBJECT *a) 429 { 430 switch (a->type) { 431 case X509_LU_X509: 432 X509_free(a->data.x509); 433 break; 434 case X509_LU_CRL: 435 X509_CRL_free(a->data.crl); 436 break; 437 } 438 } 439 440 static int 441 x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type, X509_NAME *name, 442 int *pnmatch) 443 { 444 X509_OBJECT stmp; 445 X509 x509_s; 446 X509_CINF cinf_s; 447 X509_CRL crl_s; 448 X509_CRL_INFO crl_info_s; 449 int idx; 450 451 stmp.type = type; 452 switch (type) { 453 case X509_LU_X509: 454 stmp.data.x509 = &x509_s; 455 x509_s.cert_info = &cinf_s; 456 cinf_s.subject = name; 457 break; 458 case X509_LU_CRL: 459 stmp.data.crl = &crl_s; 460 crl_s.crl = &crl_info_s; 461 crl_info_s.issuer = name; 462 break; 463 default: 464 /* abort(); */ 465 return -1; 466 } 467 468 idx = sk_X509_OBJECT_find(h, &stmp); 469 if (idx >= 0 && pnmatch) { 470 int tidx; 471 const X509_OBJECT *tobj, *pstmp; 472 *pnmatch = 1; 473 pstmp = &stmp; 474 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) { 475 tobj = sk_X509_OBJECT_value(h, tidx); 476 if (x509_object_cmp(&tobj, &pstmp)) 477 break; 478 (*pnmatch)++; 479 } 480 } 481 return idx; 482 } 483 484 int 485 X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type, X509_NAME *name) 486 { 487 return x509_object_idx_cnt(h, type, name, NULL); 488 } 489 490 X509_OBJECT * 491 X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type, 492 X509_NAME *name) 493 { 494 int idx; 495 496 idx = X509_OBJECT_idx_by_subject(h, type, name); 497 if (idx == -1) 498 return NULL; 499 return sk_X509_OBJECT_value(h, idx); 500 } 501 502 STACK_OF(X509) * 503 X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm) 504 { 505 int i, idx, cnt; 506 STACK_OF(X509) *sk; 507 X509 *x; 508 X509_OBJECT *obj; 509 510 sk = sk_X509_new_null(); 511 if (sk == NULL) 512 return NULL; 513 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 514 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt); 515 if (idx < 0) { 516 /* Nothing found in cache: do lookup to possibly add new 517 * objects to cache 518 */ 519 X509_OBJECT xobj; 520 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 521 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) { 522 sk_X509_free(sk); 523 return NULL; 524 } 525 X509_OBJECT_free_contents(&xobj); 526 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 527 idx = x509_object_idx_cnt(ctx->ctx->objs, 528 X509_LU_X509, nm, &cnt); 529 if (idx < 0) { 530 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 531 sk_X509_free(sk); 532 return NULL; 533 } 534 } 535 for (i = 0; i < cnt; i++, idx++) { 536 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx); 537 x = obj->data.x509; 538 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509); 539 if (!sk_X509_push(sk, x)) { 540 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 541 X509_free(x); 542 sk_X509_pop_free(sk, X509_free); 543 return NULL; 544 } 545 } 546 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 547 return sk; 548 549 } 550 551 STACK_OF(X509_CRL) * 552 X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm) 553 { 554 int i, idx, cnt; 555 STACK_OF(X509_CRL) *sk; 556 X509_CRL *x; 557 X509_OBJECT *obj, xobj; 558 559 sk = sk_X509_CRL_new_null(); 560 if (sk == NULL) 561 return NULL; 562 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 563 /* Check cache first */ 564 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt); 565 566 /* Always do lookup to possibly add new CRLs to cache 567 */ 568 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 569 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) { 570 sk_X509_CRL_free(sk); 571 return NULL; 572 } 573 X509_OBJECT_free_contents(&xobj); 574 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 575 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt); 576 if (idx < 0) { 577 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 578 sk_X509_CRL_free(sk); 579 return NULL; 580 } 581 582 for (i = 0; i < cnt; i++, idx++) { 583 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx); 584 x = obj->data.crl; 585 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL); 586 if (!sk_X509_CRL_push(sk, x)) { 587 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 588 X509_CRL_free(x); 589 sk_X509_CRL_pop_free(sk, X509_CRL_free); 590 return NULL; 591 } 592 } 593 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 594 return sk; 595 } 596 597 X509_OBJECT * 598 X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x) 599 { 600 int idx, i; 601 X509_OBJECT *obj; 602 603 idx = sk_X509_OBJECT_find(h, x); 604 if (idx == -1) 605 return NULL; 606 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL)) 607 return sk_X509_OBJECT_value(h, idx); 608 for (i = idx; i < sk_X509_OBJECT_num(h); i++) { 609 obj = sk_X509_OBJECT_value(h, i); 610 if (x509_object_cmp((const X509_OBJECT **)&obj, 611 (const X509_OBJECT **)&x)) 612 return NULL; 613 if (x->type == X509_LU_X509) { 614 if (!X509_cmp(obj->data.x509, x->data.x509)) 615 return obj; 616 } else if (x->type == X509_LU_CRL) { 617 if (!X509_CRL_match(obj->data.crl, x->data.crl)) 618 return obj; 619 } else 620 return obj; 621 } 622 return NULL; 623 } 624 625 626 /* Try to get issuer certificate from store. Due to limitations 627 * of the API this can only retrieve a single certificate matching 628 * a given subject name. However it will fill the cache with all 629 * matching certificates, so we can examine the cache for all 630 * matches. 631 * 632 * Return values are: 633 * 1 lookup successful. 634 * 0 certificate not found. 635 * -1 some other error. 636 */ 637 int 638 X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x) 639 { 640 X509_NAME *xn; 641 X509_OBJECT obj, *pobj; 642 int i, ok, idx, ret; 643 644 *issuer = NULL; 645 xn = X509_get_issuer_name(x); 646 ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj); 647 if (ok != X509_LU_X509) { 648 if (ok == X509_LU_RETRY) { 649 X509_OBJECT_free_contents(&obj); 650 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER, 651 X509_R_SHOULD_RETRY); 652 return -1; 653 } else if (ok != X509_LU_FAIL) { 654 X509_OBJECT_free_contents(&obj); 655 /* not good :-(, break anyway */ 656 return -1; 657 } 658 return 0; 659 } 660 /* If certificate matches all OK */ 661 if (ctx->check_issued(ctx, x, obj.data.x509)) { 662 if (x509_check_cert_time(ctx, obj.data.x509, 1)) { 663 *issuer = obj.data.x509; 664 return 1; 665 } 666 } 667 X509_OBJECT_free_contents(&obj); 668 669 /* Else find index of first cert accepted by 'check_issued' */ 670 ret = 0; 671 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 672 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn); 673 if (idx != -1) /* should be true as we've had at least one match */ { 674 /* Look through all matching certs for suitable issuer */ 675 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) { 676 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i); 677 /* See if we've run past the matches */ 678 if (pobj->type != X509_LU_X509) 679 break; 680 if (X509_NAME_cmp(xn, 681 X509_get_subject_name(pobj->data.x509))) 682 break; 683 if (ctx->check_issued(ctx, x, pobj->data.x509)) { 684 *issuer = pobj->data.x509; 685 ret = 1; 686 /* 687 * If times check, exit with match, 688 * otherwise keep looking. Leave last 689 * match in issuer so we return nearest 690 * match if no certificate time is OK. 691 */ 692 if (x509_check_cert_time(ctx, *issuer, 1)) 693 break; 694 } 695 } 696 } 697 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 698 if (*issuer) 699 CRYPTO_add(&(*issuer)->references, 1, CRYPTO_LOCK_X509); 700 return ret; 701 } 702 703 int 704 X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags) 705 { 706 return X509_VERIFY_PARAM_set_flags(ctx->param, flags); 707 } 708 709 int 710 X509_STORE_set_depth(X509_STORE *ctx, int depth) 711 { 712 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 713 return 1; 714 } 715 716 int 717 X509_STORE_set_purpose(X509_STORE *ctx, int purpose) 718 { 719 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose); 720 } 721 722 int 723 X509_STORE_set_trust(X509_STORE *ctx, int trust) 724 { 725 return X509_VERIFY_PARAM_set_trust(ctx->param, trust); 726 } 727 728 int 729 X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param) 730 { 731 return X509_VERIFY_PARAM_set1(ctx->param, param); 732 } 733 734 void 735 X509_STORE_set_verify_cb(X509_STORE *ctx, 736 int (*verify_cb)(int, X509_STORE_CTX *)) 737 { 738 ctx->verify_cb = verify_cb; 739 } 740