1 /* $OpenBSD: x509_lu.c,v 1.23 2017/01/29 17:49:23 beck 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 static void X509_OBJECT_dec_ref_count(X509_OBJECT *a); 68 /* static void X509_OBJECT_up_ref_count(X509_OBJECT *a); */ 69 70 X509_LOOKUP * 71 X509_LOOKUP_new(X509_LOOKUP_METHOD *method) 72 { 73 X509_LOOKUP *ret; 74 75 ret = malloc(sizeof(X509_LOOKUP)); 76 if (ret == NULL) 77 return NULL; 78 79 ret->init = 0; 80 ret->skip = 0; 81 ret->method = method; 82 ret->method_data = NULL; 83 ret->store_ctx = NULL; 84 if ((method->new_item != NULL) && !method->new_item(ret)) { 85 free(ret); 86 return NULL; 87 } 88 return ret; 89 } 90 91 void 92 X509_LOOKUP_free(X509_LOOKUP *ctx) 93 { 94 if (ctx == NULL) 95 return; 96 if ((ctx->method != NULL) && (ctx->method->free != NULL)) 97 (*ctx->method->free)(ctx); 98 free(ctx); 99 } 100 101 int 102 X509_LOOKUP_init(X509_LOOKUP *ctx) 103 { 104 if (ctx->method == NULL) 105 return 0; 106 if (ctx->method->init != NULL) 107 return ctx->method->init(ctx); 108 else 109 return 1; 110 } 111 112 int 113 X509_LOOKUP_shutdown(X509_LOOKUP *ctx) 114 { 115 if (ctx->method == NULL) 116 return 0; 117 if (ctx->method->shutdown != NULL) 118 return ctx->method->shutdown(ctx); 119 else 120 return 1; 121 } 122 123 int 124 X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl, 125 char **ret) 126 { 127 if (ctx->method == NULL) 128 return -1; 129 if (ctx->method->ctrl != NULL) 130 return ctx->method->ctrl(ctx, cmd, argc, argl, ret); 131 else 132 return 1; 133 } 134 135 int 136 X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name, 137 X509_OBJECT *ret) 138 { 139 if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL)) 140 return X509_LU_FAIL; 141 if (ctx->skip) 142 return 0; 143 return ctx->method->get_by_subject(ctx, type, name, ret); 144 } 145 146 int 147 X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name, 148 ASN1_INTEGER *serial, X509_OBJECT *ret) 149 { 150 if ((ctx->method == NULL) || 151 (ctx->method->get_by_issuer_serial == NULL)) 152 return X509_LU_FAIL; 153 return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret); 154 } 155 156 int 157 X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type, unsigned char *bytes, 158 int len, X509_OBJECT *ret) 159 { 160 if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL)) 161 return X509_LU_FAIL; 162 return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret); 163 } 164 165 int 166 X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len, 167 X509_OBJECT *ret) 168 { 169 if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL)) 170 return X509_LU_FAIL; 171 return ctx->method->get_by_alias(ctx, type, str, len, ret); 172 } 173 174 static int 175 x509_object_cmp(const X509_OBJECT * const *a, const X509_OBJECT * const *b) 176 { 177 int ret; 178 179 ret = ((*a)->type - (*b)->type); 180 if (ret) 181 return ret; 182 switch ((*a)->type) { 183 case X509_LU_X509: 184 ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509); 185 break; 186 case X509_LU_CRL: 187 ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl); 188 break; 189 default: 190 /* abort(); */ 191 return 0; 192 } 193 return ret; 194 } 195 196 X509_STORE * 197 X509_STORE_new(void) 198 { 199 X509_STORE *ret; 200 201 if ((ret = malloc(sizeof(X509_STORE))) == NULL) 202 return NULL; 203 ret->objs = sk_X509_OBJECT_new(x509_object_cmp); 204 ret->cache = 1; 205 ret->get_cert_methods = sk_X509_LOOKUP_new_null(); 206 ret->verify = 0; 207 ret->verify_cb = 0; 208 209 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL) 210 goto err; 211 212 ret->get_issuer = 0; 213 ret->check_issued = 0; 214 ret->check_revocation = 0; 215 ret->get_crl = 0; 216 ret->check_crl = 0; 217 ret->cert_crl = 0; 218 ret->lookup_certs = 0; 219 ret->lookup_crls = 0; 220 ret->cleanup = 0; 221 222 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data)) 223 goto err; 224 225 ret->references = 1; 226 return ret; 227 228 err: 229 X509_VERIFY_PARAM_free(ret->param); 230 sk_X509_LOOKUP_free(ret->get_cert_methods); 231 sk_X509_OBJECT_free(ret->objs); 232 free(ret); 233 return NULL; 234 } 235 236 static void 237 X509_OBJECT_free(X509_OBJECT *a) 238 { 239 X509_OBJECT_free_contents(a); 240 free(a); 241 } 242 243 void 244 X509_STORE_free(X509_STORE *vfy) 245 { 246 int i; 247 STACK_OF(X509_LOOKUP) *sk; 248 X509_LOOKUP *lu; 249 250 if (vfy == NULL) 251 return; 252 253 i = CRYPTO_add(&vfy->references, -1, CRYPTO_LOCK_X509_STORE); 254 if (i > 0) 255 return; 256 257 sk = vfy->get_cert_methods; 258 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 259 lu = sk_X509_LOOKUP_value(sk, i); 260 X509_LOOKUP_shutdown(lu); 261 X509_LOOKUP_free(lu); 262 } 263 sk_X509_LOOKUP_free(sk); 264 sk_X509_OBJECT_pop_free(vfy->objs, X509_OBJECT_free); 265 266 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data); 267 X509_VERIFY_PARAM_free(vfy->param); 268 free(vfy); 269 } 270 271 X509_LOOKUP * 272 X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m) 273 { 274 int i; 275 STACK_OF(X509_LOOKUP) *sk; 276 X509_LOOKUP *lu; 277 278 sk = v->get_cert_methods; 279 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 280 lu = sk_X509_LOOKUP_value(sk, i); 281 if (m == lu->method) { 282 return lu; 283 } 284 } 285 /* a new one */ 286 lu = X509_LOOKUP_new(m); 287 if (lu == NULL) 288 return NULL; 289 else { 290 lu->store_ctx = v; 291 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu)) 292 return lu; 293 else { 294 X509_LOOKUP_free(lu); 295 return NULL; 296 } 297 } 298 } 299 300 int 301 X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name, 302 X509_OBJECT *ret) 303 { 304 X509_STORE *ctx = vs->ctx; 305 X509_LOOKUP *lu; 306 X509_OBJECT stmp, *tmp; 307 int i, j; 308 309 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 310 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name); 311 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 312 313 if (tmp == NULL || type == X509_LU_CRL) { 314 for (i = vs->current_method; 315 i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) { 316 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i); 317 j = X509_LOOKUP_by_subject(lu, type, name, &stmp); 318 if (j < 0) { 319 vs->current_method = j; 320 return j; 321 } else if (j) { 322 tmp = &stmp; 323 break; 324 } 325 } 326 vs->current_method = 0; 327 if (tmp == NULL) 328 return 0; 329 } 330 331 /* if (ret->data.ptr != NULL) 332 X509_OBJECT_free_contents(ret); */ 333 334 ret->type = tmp->type; 335 ret->data.ptr = tmp->data.ptr; 336 337 X509_OBJECT_up_ref_count(ret); 338 339 return 1; 340 } 341 342 int 343 X509_STORE_add_cert(X509_STORE *ctx, X509 *x) 344 { 345 X509_OBJECT *obj; 346 int ret = 1; 347 348 if (x == NULL) 349 return 0; 350 obj = malloc(sizeof(X509_OBJECT)); 351 if (obj == NULL) { 352 X509error(ERR_R_MALLOC_FAILURE); 353 return 0; 354 } 355 obj->type = X509_LU_X509; 356 obj->data.x509 = x; 357 358 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 359 360 X509_OBJECT_up_ref_count(obj); 361 362 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) { 363 X509error(X509_R_CERT_ALREADY_IN_HASH_TABLE); 364 ret = 0; 365 } else { 366 if (sk_X509_OBJECT_push(ctx->objs, obj) == 0) { 367 X509error(ERR_R_MALLOC_FAILURE); 368 ret = 0; 369 } 370 } 371 372 if (ret == 0) 373 X509_OBJECT_dec_ref_count(obj); 374 375 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 376 377 if (ret == 0) { 378 obj->data.x509 = NULL; /* owned by the caller */ 379 X509_OBJECT_free(obj); 380 } 381 382 return ret; 383 } 384 385 int 386 X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x) 387 { 388 X509_OBJECT *obj; 389 int ret = 1; 390 391 if (x == NULL) 392 return 0; 393 obj = malloc(sizeof(X509_OBJECT)); 394 if (obj == NULL) { 395 X509error(ERR_R_MALLOC_FAILURE); 396 return 0; 397 } 398 obj->type = X509_LU_CRL; 399 obj->data.crl = x; 400 401 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 402 403 X509_OBJECT_up_ref_count(obj); 404 405 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) { 406 X509error(X509_R_CERT_ALREADY_IN_HASH_TABLE); 407 ret = 0; 408 } else { 409 if (sk_X509_OBJECT_push(ctx->objs, obj) == 0) { 410 X509error(ERR_R_MALLOC_FAILURE); 411 ret = 0; 412 } 413 } 414 415 if (ret == 0) 416 X509_OBJECT_dec_ref_count(obj); 417 418 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 419 420 if (ret == 0) { 421 obj->data.crl = NULL; /* owned by the caller */ 422 X509_OBJECT_free(obj); 423 } 424 425 return ret; 426 } 427 428 static void 429 X509_OBJECT_dec_ref_count(X509_OBJECT *a) 430 { 431 switch (a->type) { 432 case X509_LU_X509: 433 CRYPTO_add(&a->data.x509->references, -1, CRYPTO_LOCK_X509); 434 break; 435 case X509_LU_CRL: 436 CRYPTO_add(&a->data.crl->references, -1, CRYPTO_LOCK_X509_CRL); 437 break; 438 } 439 } 440 441 /*static*/ void 442 X509_OBJECT_up_ref_count(X509_OBJECT *a) 443 { 444 switch (a->type) { 445 case X509_LU_X509: 446 CRYPTO_add(&a->data.x509->references, 1, CRYPTO_LOCK_X509); 447 break; 448 case X509_LU_CRL: 449 CRYPTO_add(&a->data.crl->references, 1, CRYPTO_LOCK_X509_CRL); 450 break; 451 } 452 } 453 454 void 455 X509_OBJECT_free_contents(X509_OBJECT *a) 456 { 457 switch (a->type) { 458 case X509_LU_X509: 459 X509_free(a->data.x509); 460 break; 461 case X509_LU_CRL: 462 X509_CRL_free(a->data.crl); 463 break; 464 } 465 } 466 467 static int 468 x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type, X509_NAME *name, 469 int *pnmatch) 470 { 471 X509_OBJECT stmp; 472 X509 x509_s; 473 X509_CINF cinf_s; 474 X509_CRL crl_s; 475 X509_CRL_INFO crl_info_s; 476 int idx; 477 478 stmp.type = type; 479 switch (type) { 480 case X509_LU_X509: 481 stmp.data.x509 = &x509_s; 482 x509_s.cert_info = &cinf_s; 483 cinf_s.subject = name; 484 break; 485 case X509_LU_CRL: 486 stmp.data.crl = &crl_s; 487 crl_s.crl = &crl_info_s; 488 crl_info_s.issuer = name; 489 break; 490 default: 491 /* abort(); */ 492 return -1; 493 } 494 495 idx = sk_X509_OBJECT_find(h, &stmp); 496 if (idx >= 0 && pnmatch) { 497 int tidx; 498 const X509_OBJECT *tobj, *pstmp; 499 *pnmatch = 1; 500 pstmp = &stmp; 501 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) { 502 tobj = sk_X509_OBJECT_value(h, tidx); 503 if (x509_object_cmp(&tobj, &pstmp)) 504 break; 505 (*pnmatch)++; 506 } 507 } 508 return idx; 509 } 510 511 int 512 X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type, X509_NAME *name) 513 { 514 return x509_object_idx_cnt(h, type, name, NULL); 515 } 516 517 X509_OBJECT * 518 X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type, 519 X509_NAME *name) 520 { 521 int idx; 522 523 idx = X509_OBJECT_idx_by_subject(h, type, name); 524 if (idx == -1) 525 return NULL; 526 return sk_X509_OBJECT_value(h, idx); 527 } 528 529 STACK_OF(X509) * 530 X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm) 531 { 532 int i, idx, cnt; 533 STACK_OF(X509) *sk; 534 X509 *x; 535 X509_OBJECT *obj; 536 537 sk = sk_X509_new_null(); 538 if (sk == NULL) 539 return NULL; 540 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 541 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt); 542 if (idx < 0) { 543 /* Nothing found in cache: do lookup to possibly add new 544 * objects to cache 545 */ 546 X509_OBJECT xobj; 547 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 548 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) { 549 sk_X509_free(sk); 550 return NULL; 551 } 552 X509_OBJECT_free_contents(&xobj); 553 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 554 idx = x509_object_idx_cnt(ctx->ctx->objs, 555 X509_LU_X509, nm, &cnt); 556 if (idx < 0) { 557 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 558 sk_X509_free(sk); 559 return NULL; 560 } 561 } 562 for (i = 0; i < cnt; i++, idx++) { 563 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx); 564 x = obj->data.x509; 565 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509); 566 if (!sk_X509_push(sk, x)) { 567 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 568 X509_free(x); 569 sk_X509_pop_free(sk, X509_free); 570 return NULL; 571 } 572 } 573 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 574 return sk; 575 576 } 577 578 STACK_OF(X509_CRL) * 579 X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm) 580 { 581 int i, idx, cnt; 582 STACK_OF(X509_CRL) *sk; 583 X509_CRL *x; 584 X509_OBJECT *obj, xobj; 585 586 sk = sk_X509_CRL_new_null(); 587 if (sk == NULL) 588 return NULL; 589 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 590 /* Check cache first */ 591 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt); 592 593 /* Always do lookup to possibly add new CRLs to cache 594 */ 595 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 596 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) { 597 sk_X509_CRL_free(sk); 598 return NULL; 599 } 600 X509_OBJECT_free_contents(&xobj); 601 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 602 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt); 603 if (idx < 0) { 604 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 605 sk_X509_CRL_free(sk); 606 return NULL; 607 } 608 609 for (i = 0; i < cnt; i++, idx++) { 610 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx); 611 x = obj->data.crl; 612 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL); 613 if (!sk_X509_CRL_push(sk, x)) { 614 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 615 X509_CRL_free(x); 616 sk_X509_CRL_pop_free(sk, X509_CRL_free); 617 return NULL; 618 } 619 } 620 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 621 return sk; 622 } 623 624 X509_OBJECT * 625 X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x) 626 { 627 int idx, i; 628 X509_OBJECT *obj; 629 630 idx = sk_X509_OBJECT_find(h, x); 631 if (idx == -1) 632 return NULL; 633 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL)) 634 return sk_X509_OBJECT_value(h, idx); 635 for (i = idx; i < sk_X509_OBJECT_num(h); i++) { 636 obj = sk_X509_OBJECT_value(h, i); 637 if (x509_object_cmp((const X509_OBJECT **)&obj, 638 (const X509_OBJECT **)&x)) 639 return NULL; 640 if (x->type == X509_LU_X509) { 641 if (!X509_cmp(obj->data.x509, x->data.x509)) 642 return obj; 643 } else if (x->type == X509_LU_CRL) { 644 if (!X509_CRL_match(obj->data.crl, x->data.crl)) 645 return obj; 646 } else 647 return obj; 648 } 649 return NULL; 650 } 651 652 653 /* Try to get issuer certificate from store. Due to limitations 654 * of the API this can only retrieve a single certificate matching 655 * a given subject name. However it will fill the cache with all 656 * matching certificates, so we can examine the cache for all 657 * matches. 658 * 659 * Return values are: 660 * 1 lookup successful. 661 * 0 certificate not found. 662 * -1 some other error. 663 */ 664 int 665 X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x) 666 { 667 X509_NAME *xn; 668 X509_OBJECT obj, *pobj; 669 int i, ok, idx, ret; 670 671 *issuer = NULL; 672 xn = X509_get_issuer_name(x); 673 ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj); 674 if (ok != X509_LU_X509) { 675 if (ok == X509_LU_RETRY) { 676 X509_OBJECT_free_contents(&obj); 677 X509error(X509_R_SHOULD_RETRY); 678 return -1; 679 } else if (ok != X509_LU_FAIL) { 680 X509_OBJECT_free_contents(&obj); 681 /* not good :-(, break anyway */ 682 return -1; 683 } 684 return 0; 685 } 686 /* If certificate matches all OK */ 687 if (ctx->check_issued(ctx, x, obj.data.x509)) { 688 if (x509_check_cert_time(ctx, obj.data.x509, 1)) { 689 *issuer = obj.data.x509; 690 return 1; 691 } 692 } 693 X509_OBJECT_free_contents(&obj); 694 695 /* Else find index of first cert accepted by 'check_issued' */ 696 ret = 0; 697 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 698 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn); 699 if (idx != -1) /* should be true as we've had at least one match */ { 700 /* Look through all matching certs for suitable issuer */ 701 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) { 702 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i); 703 /* See if we've run past the matches */ 704 if (pobj->type != X509_LU_X509) 705 break; 706 if (X509_NAME_cmp(xn, 707 X509_get_subject_name(pobj->data.x509))) 708 break; 709 if (ctx->check_issued(ctx, x, pobj->data.x509)) { 710 *issuer = pobj->data.x509; 711 ret = 1; 712 /* 713 * If times check, exit with match, 714 * otherwise keep looking. Leave last 715 * match in issuer so we return nearest 716 * match if no certificate time is OK. 717 */ 718 if (x509_check_cert_time(ctx, *issuer, 1)) 719 break; 720 } 721 } 722 } 723 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 724 if (*issuer) 725 CRYPTO_add(&(*issuer)->references, 1, CRYPTO_LOCK_X509); 726 return ret; 727 } 728 729 int 730 X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags) 731 { 732 return X509_VERIFY_PARAM_set_flags(ctx->param, flags); 733 } 734 735 int 736 X509_STORE_set_depth(X509_STORE *ctx, int depth) 737 { 738 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 739 return 1; 740 } 741 742 int 743 X509_STORE_set_purpose(X509_STORE *ctx, int purpose) 744 { 745 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose); 746 } 747 748 int 749 X509_STORE_set_trust(X509_STORE *ctx, int trust) 750 { 751 return X509_VERIFY_PARAM_set_trust(ctx->param, trust); 752 } 753 754 int 755 X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param) 756 { 757 return X509_VERIFY_PARAM_set1(ctx->param, param); 758 } 759 760 void 761 X509_STORE_set_verify_cb(X509_STORE *ctx, 762 int (*verify_cb)(int, X509_STORE_CTX *)) 763 { 764 ctx->verify_cb = verify_cb; 765 } 766