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 if ((ret->objs = sk_X509_OBJECT_new(x509_object_cmp)) == NULL) 189 goto err0; 190 ret->cache = 1; 191 if ((ret->get_cert_methods = sk_X509_LOOKUP_new_null()) == NULL) 192 goto err1; 193 ret->verify = 0; 194 ret->verify_cb = 0; 195 196 if ((ret->param = X509_VERIFY_PARAM_new()) == NULL) 197 goto err2; 198 199 ret->get_issuer = 0; 200 ret->check_issued = 0; 201 ret->check_revocation = 0; 202 ret->get_crl = 0; 203 ret->check_crl = 0; 204 ret->cert_crl = 0; 205 ret->lookup_certs = 0; 206 ret->lookup_crls = 0; 207 ret->cleanup = 0; 208 209 if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data)) 210 goto err3; 211 212 ret->references = 1; 213 return ret; 214 215 err3: 216 X509_VERIFY_PARAM_free(ret->param); 217 err2: 218 sk_X509_LOOKUP_free(ret->get_cert_methods); 219 err1: 220 sk_X509_OBJECT_free(ret->objs); 221 err0: 222 OPENSSL_free(ret); 223 return NULL; 224 } 225 226 static void cleanup(X509_OBJECT *a) 227 { 228 if (!a) 229 return; 230 if (a->type == X509_LU_X509) { 231 X509_free(a->data.x509); 232 } else if (a->type == X509_LU_CRL) { 233 X509_CRL_free(a->data.crl); 234 } else { 235 /* abort(); */ 236 } 237 238 OPENSSL_free(a); 239 } 240 241 void X509_STORE_free(X509_STORE *vfy) 242 { 243 int i; 244 STACK_OF(X509_LOOKUP) *sk; 245 X509_LOOKUP *lu; 246 247 if (vfy == NULL) 248 return; 249 250 i = CRYPTO_add(&vfy->references, -1, CRYPTO_LOCK_X509_STORE); 251 #ifdef REF_PRINT 252 REF_PRINT("X509_STORE", vfy); 253 #endif 254 if (i > 0) 255 return; 256 #ifdef REF_CHECK 257 if (i < 0) { 258 fprintf(stderr, "X509_STORE_free, bad reference count\n"); 259 abort(); /* ok */ 260 } 261 #endif 262 263 sk = vfy->get_cert_methods; 264 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 265 lu = sk_X509_LOOKUP_value(sk, i); 266 X509_LOOKUP_shutdown(lu); 267 X509_LOOKUP_free(lu); 268 } 269 sk_X509_LOOKUP_free(sk); 270 sk_X509_OBJECT_pop_free(vfy->objs, cleanup); 271 272 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data); 273 if (vfy->param) 274 X509_VERIFY_PARAM_free(vfy->param); 275 OPENSSL_free(vfy); 276 } 277 278 X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m) 279 { 280 int i; 281 STACK_OF(X509_LOOKUP) *sk; 282 X509_LOOKUP *lu; 283 284 sk = v->get_cert_methods; 285 for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) { 286 lu = sk_X509_LOOKUP_value(sk, i); 287 if (m == lu->method) { 288 return lu; 289 } 290 } 291 /* a new one */ 292 lu = X509_LOOKUP_new(m); 293 if (lu == NULL) 294 return NULL; 295 else { 296 lu->store_ctx = v; 297 if (sk_X509_LOOKUP_push(v->get_cert_methods, lu)) 298 return lu; 299 else { 300 X509_LOOKUP_free(lu); 301 return NULL; 302 } 303 } 304 } 305 306 int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name, 307 X509_OBJECT *ret) 308 { 309 X509_STORE *ctx = vs->ctx; 310 X509_LOOKUP *lu; 311 X509_OBJECT stmp, *tmp; 312 int i, j; 313 314 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 315 tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name); 316 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 317 318 if (tmp == NULL || type == X509_LU_CRL) { 319 for (i = vs->current_method; 320 i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) { 321 lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i); 322 j = X509_LOOKUP_by_subject(lu, type, name, &stmp); 323 if (j < 0) { 324 vs->current_method = j; 325 return j; 326 } else if (j) { 327 tmp = &stmp; 328 break; 329 } 330 } 331 vs->current_method = 0; 332 if (tmp == NULL) 333 return 0; 334 } 335 336 /*- if (ret->data.ptr != NULL) 337 X509_OBJECT_free_contents(ret); */ 338 339 ret->type = tmp->type; 340 ret->data.ptr = tmp->data.ptr; 341 342 X509_OBJECT_up_ref_count(ret); 343 344 return 1; 345 } 346 347 int 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 = (X509_OBJECT *)OPENSSL_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 OPENSSL_free(obj); 369 X509err(X509_F_X509_STORE_ADD_CERT, 370 X509_R_CERT_ALREADY_IN_HASH_TABLE); 371 ret = 0; 372 } else if (!sk_X509_OBJECT_push(ctx->objs, obj)) { 373 X509_OBJECT_free_contents(obj); 374 OPENSSL_free(obj); 375 X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE); 376 ret = 0; 377 } 378 379 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 380 381 return ret; 382 } 383 384 int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x) 385 { 386 X509_OBJECT *obj; 387 int ret = 1; 388 389 if (x == NULL) 390 return 0; 391 obj = (X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT)); 392 if (obj == NULL) { 393 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE); 394 return 0; 395 } 396 obj->type = X509_LU_CRL; 397 obj->data.crl = x; 398 399 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 400 401 X509_OBJECT_up_ref_count(obj); 402 403 if (X509_OBJECT_retrieve_match(ctx->objs, obj)) { 404 X509_OBJECT_free_contents(obj); 405 OPENSSL_free(obj); 406 X509err(X509_F_X509_STORE_ADD_CRL, X509_R_CERT_ALREADY_IN_HASH_TABLE); 407 ret = 0; 408 } else if (!sk_X509_OBJECT_push(ctx->objs, obj)) { 409 X509_OBJECT_free_contents(obj); 410 OPENSSL_free(obj); 411 X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE); 412 ret = 0; 413 } 414 415 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 416 417 return ret; 418 } 419 420 void X509_OBJECT_up_ref_count(X509_OBJECT *a) 421 { 422 switch (a->type) { 423 case X509_LU_X509: 424 CRYPTO_add(&a->data.x509->references, 1, CRYPTO_LOCK_X509); 425 break; 426 case X509_LU_CRL: 427 CRYPTO_add(&a->data.crl->references, 1, CRYPTO_LOCK_X509_CRL); 428 break; 429 } 430 } 431 432 void X509_OBJECT_free_contents(X509_OBJECT *a) 433 { 434 switch (a->type) { 435 case X509_LU_X509: 436 X509_free(a->data.x509); 437 break; 438 case X509_LU_CRL: 439 X509_CRL_free(a->data.crl); 440 break; 441 } 442 } 443 444 static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type, 445 X509_NAME *name, int *pnmatch) 446 { 447 X509_OBJECT stmp; 448 X509 x509_s; 449 X509_CINF cinf_s; 450 X509_CRL crl_s; 451 X509_CRL_INFO crl_info_s; 452 int idx; 453 454 stmp.type = type; 455 switch (type) { 456 case X509_LU_X509: 457 stmp.data.x509 = &x509_s; 458 x509_s.cert_info = &cinf_s; 459 cinf_s.subject = name; 460 break; 461 case X509_LU_CRL: 462 stmp.data.crl = &crl_s; 463 crl_s.crl = &crl_info_s; 464 crl_info_s.issuer = name; 465 break; 466 default: 467 /* abort(); */ 468 return -1; 469 } 470 471 idx = sk_X509_OBJECT_find(h, &stmp); 472 if (idx >= 0 && pnmatch) { 473 int tidx; 474 const X509_OBJECT *tobj, *pstmp; 475 *pnmatch = 1; 476 pstmp = &stmp; 477 for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) { 478 tobj = sk_X509_OBJECT_value(h, tidx); 479 if (x509_object_cmp(&tobj, &pstmp)) 480 break; 481 (*pnmatch)++; 482 } 483 } 484 return idx; 485 } 486 487 int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type, 488 X509_NAME *name) 489 { 490 return x509_object_idx_cnt(h, type, name, NULL); 491 } 492 493 X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, 494 int type, X509_NAME *name) 495 { 496 int idx; 497 idx = X509_OBJECT_idx_by_subject(h, type, name); 498 if (idx == -1) 499 return NULL; 500 return sk_X509_OBJECT_value(h, idx); 501 } 502 503 STACK_OF(X509) *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 sk = sk_X509_new_null(); 510 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 511 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt); 512 if (idx < 0) { 513 /* 514 * Nothing found in cache: do lookup to possibly add new objects to 515 * cache 516 */ 517 X509_OBJECT xobj; 518 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 519 if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) { 520 sk_X509_free(sk); 521 return NULL; 522 } 523 X509_OBJECT_free_contents(&xobj); 524 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 525 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt); 526 if (idx < 0) { 527 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 528 sk_X509_free(sk); 529 return NULL; 530 } 531 } 532 for (i = 0; i < cnt; i++, idx++) { 533 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx); 534 x = obj->data.x509; 535 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509); 536 if (!sk_X509_push(sk, x)) { 537 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 538 X509_free(x); 539 sk_X509_pop_free(sk, X509_free); 540 return NULL; 541 } 542 } 543 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 544 return sk; 545 546 } 547 548 STACK_OF(X509_CRL) *X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm) 549 { 550 int i, idx, cnt; 551 STACK_OF(X509_CRL) *sk; 552 X509_CRL *x; 553 X509_OBJECT *obj, xobj; 554 sk = sk_X509_CRL_new_null(); 555 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 556 557 /* 558 * Always do lookup to possibly add new CRLs to cache 559 */ 560 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 561 if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) { 562 sk_X509_CRL_free(sk); 563 return NULL; 564 } 565 X509_OBJECT_free_contents(&xobj); 566 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 567 idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt); 568 if (idx < 0) { 569 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 570 sk_X509_CRL_free(sk); 571 return NULL; 572 } 573 574 for (i = 0; i < cnt; i++, idx++) { 575 obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx); 576 x = obj->data.crl; 577 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL); 578 if (!sk_X509_CRL_push(sk, x)) { 579 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 580 X509_CRL_free(x); 581 sk_X509_CRL_pop_free(sk, X509_CRL_free); 582 return NULL; 583 } 584 } 585 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 586 return sk; 587 } 588 589 X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, 590 X509_OBJECT *x) 591 { 592 int idx, i; 593 X509_OBJECT *obj; 594 idx = sk_X509_OBJECT_find(h, x); 595 if (idx == -1) 596 return NULL; 597 if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL)) 598 return sk_X509_OBJECT_value(h, idx); 599 for (i = idx; i < sk_X509_OBJECT_num(h); i++) { 600 obj = sk_X509_OBJECT_value(h, i); 601 if (x509_object_cmp 602 ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x)) 603 return NULL; 604 if (x->type == X509_LU_X509) { 605 if (!X509_cmp(obj->data.x509, x->data.x509)) 606 return obj; 607 } else if (x->type == X509_LU_CRL) { 608 if (!X509_CRL_match(obj->data.crl, x->data.crl)) 609 return obj; 610 } else 611 return obj; 612 } 613 return NULL; 614 } 615 616 /*- 617 * Try to get issuer certificate from store. Due to limitations 618 * of the API this can only retrieve a single certificate matching 619 * a given subject name. However it will fill the cache with all 620 * matching certificates, so we can examine the cache for all 621 * matches. 622 * 623 * Return values are: 624 * 1 lookup successful. 625 * 0 certificate not found. 626 * -1 some other error. 627 */ 628 int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x) 629 { 630 X509_NAME *xn; 631 X509_OBJECT obj, *pobj; 632 int i, ok, idx, ret; 633 xn = X509_get_issuer_name(x); 634 ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj); 635 if (ok != X509_LU_X509) { 636 if (ok == X509_LU_RETRY) { 637 X509_OBJECT_free_contents(&obj); 638 X509err(X509_F_X509_STORE_CTX_GET1_ISSUER, X509_R_SHOULD_RETRY); 639 return -1; 640 } else if (ok != X509_LU_FAIL) { 641 X509_OBJECT_free_contents(&obj); 642 /* not good :-(, break anyway */ 643 return -1; 644 } 645 return 0; 646 } 647 /* If certificate matches all OK */ 648 if (ctx->check_issued(ctx, x, obj.data.x509)) { 649 *issuer = obj.data.x509; 650 return 1; 651 } 652 X509_OBJECT_free_contents(&obj); 653 654 /* Else find index of first cert accepted by 'check_issued' */ 655 ret = 0; 656 CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE); 657 idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn); 658 if (idx != -1) { /* should be true as we've had at least one 659 * match */ 660 /* Look through all matching certs for suitable issuer */ 661 for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) { 662 pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i); 663 /* See if we've run past the matches */ 664 if (pobj->type != X509_LU_X509) 665 break; 666 if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509))) 667 break; 668 if (ctx->check_issued(ctx, x, pobj->data.x509)) { 669 *issuer = pobj->data.x509; 670 X509_OBJECT_up_ref_count(pobj); 671 ret = 1; 672 break; 673 } 674 } 675 } 676 CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE); 677 return ret; 678 } 679 680 int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags) 681 { 682 return X509_VERIFY_PARAM_set_flags(ctx->param, flags); 683 } 684 685 int X509_STORE_set_depth(X509_STORE *ctx, int depth) 686 { 687 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 688 return 1; 689 } 690 691 int X509_STORE_set_purpose(X509_STORE *ctx, int purpose) 692 { 693 return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose); 694 } 695 696 int X509_STORE_set_trust(X509_STORE *ctx, int trust) 697 { 698 return X509_VERIFY_PARAM_set_trust(ctx->param, trust); 699 } 700 701 int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param) 702 { 703 return X509_VERIFY_PARAM_set1(ctx->param, param); 704 } 705 706 void X509_STORE_set_verify_cb(X509_STORE *ctx, 707 int (*verify_cb) (int, X509_STORE_CTX *)) 708 { 709 ctx->verify_cb = verify_cb; 710 } 711 712 void X509_STORE_set_lookup_crls_cb(X509_STORE *ctx, 713 STACK_OF(X509_CRL) *(*cb) (X509_STORE_CTX 714 *ctx, 715 X509_NAME *nm)) 716 { 717 ctx->lookup_crls = cb; 718 } 719 720 X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx) 721 { 722 return ctx->ctx; 723 } 724 725 IMPLEMENT_STACK_OF(X509_LOOKUP) 726 727 IMPLEMENT_STACK_OF(X509_OBJECT) 728