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  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. #include <string.h>
  58. #include <openssl/err.h>
  59. #include <openssl/mem.h>
  60. #include <openssl/thread.h>
  61. #include <openssl/x509.h>
  62. #include <openssl/x509v3.h>
  63. #include "../internal.h"
  64. X509_LOOKUP *X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
  65. {
  66. X509_LOOKUP *ret;
  67. ret = (X509_LOOKUP *)OPENSSL_malloc(sizeof(X509_LOOKUP));
  68. if (ret == NULL)
  69. return NULL;
  70. ret->init = 0;
  71. ret->skip = 0;
  72. ret->method = method;
  73. ret->method_data = NULL;
  74. ret->store_ctx = NULL;
  75. if ((method->new_item != NULL) && !method->new_item(ret)) {
  76. OPENSSL_free(ret);
  77. return NULL;
  78. }
  79. return ret;
  80. }
  81. void X509_LOOKUP_free(X509_LOOKUP *ctx)
  82. {
  83. if (ctx == NULL)
  84. return;
  85. if ((ctx->method != NULL) && (ctx->method->free != NULL))
  86. (*ctx->method->free) (ctx);
  87. OPENSSL_free(ctx);
  88. }
  89. int X509_LOOKUP_init(X509_LOOKUP *ctx)
  90. {
  91. if (ctx->method == NULL)
  92. return 0;
  93. if (ctx->method->init != NULL)
  94. return ctx->method->init(ctx);
  95. else
  96. return 1;
  97. }
  98. int X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
  99. {
  100. if (ctx->method == NULL)
  101. return 0;
  102. if (ctx->method->shutdown != NULL)
  103. return ctx->method->shutdown(ctx);
  104. else
  105. return 1;
  106. }
  107. int X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
  108. char **ret)
  109. {
  110. if (ctx->method == NULL)
  111. return -1;
  112. if (ctx->method->ctrl != NULL)
  113. return ctx->method->ctrl(ctx, cmd, argc, argl, ret);
  114. else
  115. return 1;
  116. }
  117. int X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
  118. X509_OBJECT *ret)
  119. {
  120. if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
  121. return 0;
  122. if (ctx->skip)
  123. return 0;
  124. return ctx->method->get_by_subject(ctx, type, name, ret) > 0;
  125. }
  126. int X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
  127. ASN1_INTEGER *serial, X509_OBJECT *ret)
  128. {
  129. if ((ctx->method == NULL) || (ctx->method->get_by_issuer_serial == NULL))
  130. return 0;
  131. return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret) > 0;
  132. }
  133. int X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type,
  134. unsigned char *bytes, int len,
  135. X509_OBJECT *ret)
  136. {
  137. if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
  138. return 0;
  139. return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret) > 0;
  140. }
  141. int X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
  142. X509_OBJECT *ret)
  143. {
  144. if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
  145. return 0;
  146. return ctx->method->get_by_alias(ctx, type, str, len, ret) > 0;
  147. }
  148. static int x509_object_cmp(const X509_OBJECT **a, const X509_OBJECT **b)
  149. {
  150. int ret;
  151. ret = ((*a)->type - (*b)->type);
  152. if (ret)
  153. return ret;
  154. switch ((*a)->type) {
  155. case X509_LU_X509:
  156. ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
  157. break;
  158. case X509_LU_CRL:
  159. ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
  160. break;
  161. default:
  162. /* abort(); */
  163. return 0;
  164. }
  165. return ret;
  166. }
  167. X509_STORE *X509_STORE_new(void)
  168. {
  169. X509_STORE *ret;
  170. if ((ret = (X509_STORE *)OPENSSL_malloc(sizeof(X509_STORE))) == NULL)
  171. return NULL;
  172. OPENSSL_memset(ret, 0, sizeof(*ret));
  173. CRYPTO_MUTEX_init(&ret->objs_lock);
  174. ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
  175. if (ret->objs == NULL)
  176. goto err;
  177. ret->cache = 1;
  178. ret->get_cert_methods = sk_X509_LOOKUP_new_null();
  179. if (ret->get_cert_methods == NULL)
  180. goto err;
  181. ret->param = X509_VERIFY_PARAM_new();
  182. if (ret->param == NULL)
  183. goto err;
  184. ret->references = 1;
  185. return ret;
  186. err:
  187. if (ret) {
  188. CRYPTO_MUTEX_cleanup(&ret->objs_lock);
  189. if (ret->param)
  190. X509_VERIFY_PARAM_free(ret->param);
  191. if (ret->get_cert_methods)
  192. sk_X509_LOOKUP_free(ret->get_cert_methods);
  193. if (ret->objs)
  194. sk_X509_OBJECT_free(ret->objs);
  195. OPENSSL_free(ret);
  196. }
  197. return NULL;
  198. }
  199. int X509_STORE_up_ref(X509_STORE *store)
  200. {
  201. CRYPTO_refcount_inc(&store->references);
  202. return 1;
  203. }
  204. static void cleanup(X509_OBJECT *a)
  205. {
  206. if (a == NULL) {
  207. return;
  208. }
  209. if (a->type == X509_LU_X509) {
  210. X509_free(a->data.x509);
  211. } else if (a->type == X509_LU_CRL) {
  212. X509_CRL_free(a->data.crl);
  213. } else {
  214. /* abort(); */
  215. }
  216. OPENSSL_free(a);
  217. }
  218. void X509_STORE_free(X509_STORE *vfy)
  219. {
  220. size_t j;
  221. STACK_OF(X509_LOOKUP) *sk;
  222. X509_LOOKUP *lu;
  223. if (vfy == NULL)
  224. return;
  225. if (!CRYPTO_refcount_dec_and_test_zero(&vfy->references)) {
  226. return;
  227. }
  228. CRYPTO_MUTEX_cleanup(&vfy->objs_lock);
  229. sk = vfy->get_cert_methods;
  230. for (j = 0; j < sk_X509_LOOKUP_num(sk); j++) {
  231. lu = sk_X509_LOOKUP_value(sk, j);
  232. X509_LOOKUP_shutdown(lu);
  233. X509_LOOKUP_free(lu);
  234. }
  235. sk_X509_LOOKUP_free(sk);
  236. sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
  237. if (vfy->param)
  238. X509_VERIFY_PARAM_free(vfy->param);
  239. OPENSSL_free(vfy);
  240. }
  241. X509_LOOKUP *X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
  242. {
  243. size_t i;
  244. STACK_OF(X509_LOOKUP) *sk;
  245. X509_LOOKUP *lu;
  246. sk = v->get_cert_methods;
  247. for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
  248. lu = sk_X509_LOOKUP_value(sk, i);
  249. if (m == lu->method) {
  250. return lu;
  251. }
  252. }
  253. /* a new one */
  254. lu = X509_LOOKUP_new(m);
  255. if (lu == NULL)
  256. return NULL;
  257. else {
  258. lu->store_ctx = v;
  259. if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
  260. return lu;
  261. else {
  262. X509_LOOKUP_free(lu);
  263. return NULL;
  264. }
  265. }
  266. }
  267. int X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
  268. X509_OBJECT *ret)
  269. {
  270. X509_STORE *ctx = vs->ctx;
  271. X509_LOOKUP *lu;
  272. X509_OBJECT stmp, *tmp;
  273. int i;
  274. CRYPTO_MUTEX_lock_write(&ctx->objs_lock);
  275. tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
  276. CRYPTO_MUTEX_unlock_write(&ctx->objs_lock);
  277. if (tmp == NULL || type == X509_LU_CRL) {
  278. for (i = 0; i < (int)sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
  279. lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
  280. if (X509_LOOKUP_by_subject(lu, type, name, &stmp)) {
  281. tmp = &stmp;
  282. break;
  283. }
  284. }
  285. if (tmp == NULL)
  286. return 0;
  287. }
  288. /*
  289. * if (ret->data.ptr != NULL) X509_OBJECT_free_contents(ret);
  290. */
  291. ret->type = tmp->type;
  292. ret->data.ptr = tmp->data.ptr;
  293. X509_OBJECT_up_ref_count(ret);
  294. return 1;
  295. }
  296. int X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
  297. {
  298. X509_OBJECT *obj;
  299. int ret = 1;
  300. if (x == NULL)
  301. return 0;
  302. obj = (X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
  303. if (obj == NULL) {
  304. OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
  305. return 0;
  306. }
  307. obj->type = X509_LU_X509;
  308. obj->data.x509 = x;
  309. CRYPTO_MUTEX_lock_write(&ctx->objs_lock);
  310. X509_OBJECT_up_ref_count(obj);
  311. if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
  312. X509_OBJECT_free_contents(obj);
  313. OPENSSL_free(obj);
  314. OPENSSL_PUT_ERROR(X509, X509_R_CERT_ALREADY_IN_HASH_TABLE);
  315. ret = 0;
  316. } else if (!sk_X509_OBJECT_push(ctx->objs, obj)) {
  317. X509_OBJECT_free_contents(obj);
  318. OPENSSL_free(obj);
  319. OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
  320. ret = 0;
  321. }
  322. CRYPTO_MUTEX_unlock_write(&ctx->objs_lock);
  323. return ret;
  324. }
  325. int X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
  326. {
  327. X509_OBJECT *obj;
  328. int ret = 1;
  329. if (x == NULL)
  330. return 0;
  331. obj = (X509_OBJECT *)OPENSSL_malloc(sizeof(X509_OBJECT));
  332. if (obj == NULL) {
  333. OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
  334. return 0;
  335. }
  336. obj->type = X509_LU_CRL;
  337. obj->data.crl = x;
  338. CRYPTO_MUTEX_lock_write(&ctx->objs_lock);
  339. X509_OBJECT_up_ref_count(obj);
  340. if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
  341. X509_OBJECT_free_contents(obj);
  342. OPENSSL_free(obj);
  343. OPENSSL_PUT_ERROR(X509, X509_R_CERT_ALREADY_IN_HASH_TABLE);
  344. ret = 0;
  345. } else if (!sk_X509_OBJECT_push(ctx->objs, obj)) {
  346. X509_OBJECT_free_contents(obj);
  347. OPENSSL_free(obj);
  348. OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
  349. ret = 0;
  350. }
  351. CRYPTO_MUTEX_unlock_write(&ctx->objs_lock);
  352. return ret;
  353. }
  354. void X509_STORE_set0_additional_untrusted(X509_STORE *ctx,
  355. STACK_OF(X509) *untrusted) {
  356. ctx->additional_untrusted = untrusted;
  357. }
  358. int X509_OBJECT_up_ref_count(X509_OBJECT *a)
  359. {
  360. switch (a->type) {
  361. case X509_LU_X509:
  362. X509_up_ref(a->data.x509);
  363. break;
  364. case X509_LU_CRL:
  365. X509_CRL_up_ref(a->data.crl);
  366. break;
  367. }
  368. return 1;
  369. }
  370. void X509_OBJECT_free_contents(X509_OBJECT *a)
  371. {
  372. switch (a->type) {
  373. case X509_LU_X509:
  374. X509_free(a->data.x509);
  375. break;
  376. case X509_LU_CRL:
  377. X509_CRL_free(a->data.crl);
  378. break;
  379. }
  380. }
  381. int X509_OBJECT_get_type(const X509_OBJECT *a)
  382. {
  383. return a->type;
  384. }
  385. X509 *X509_OBJECT_get0_X509(const X509_OBJECT *a)
  386. {
  387. if (a == NULL || a->type != X509_LU_X509) {
  388. return NULL;
  389. }
  390. return a->data.x509;
  391. }
  392. static int x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type,
  393. X509_NAME *name, int *pnmatch)
  394. {
  395. X509_OBJECT stmp;
  396. X509 x509_s;
  397. X509_CINF cinf_s;
  398. X509_CRL crl_s;
  399. X509_CRL_INFO crl_info_s;
  400. stmp.type = type;
  401. switch (type) {
  402. case X509_LU_X509:
  403. stmp.data.x509 = &x509_s;
  404. x509_s.cert_info = &cinf_s;
  405. cinf_s.subject = name;
  406. break;
  407. case X509_LU_CRL:
  408. stmp.data.crl = &crl_s;
  409. crl_s.crl = &crl_info_s;
  410. crl_info_s.issuer = name;
  411. break;
  412. default:
  413. /* abort(); */
  414. return -1;
  415. }
  416. size_t idx;
  417. sk_X509_OBJECT_sort(h);
  418. if (!sk_X509_OBJECT_find(h, &idx, &stmp))
  419. return -1;
  420. if (pnmatch != NULL) {
  421. int tidx;
  422. const X509_OBJECT *tobj, *pstmp;
  423. *pnmatch = 1;
  424. pstmp = &stmp;
  425. for (tidx = idx + 1; tidx < (int)sk_X509_OBJECT_num(h); tidx++) {
  426. tobj = sk_X509_OBJECT_value(h, tidx);
  427. if (x509_object_cmp(&tobj, &pstmp))
  428. break;
  429. (*pnmatch)++;
  430. }
  431. }
  432. return idx;
  433. }
  434. int X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type,
  435. X509_NAME *name)
  436. {
  437. return x509_object_idx_cnt(h, type, name, NULL);
  438. }
  439. X509_OBJECT *X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h,
  440. int type, X509_NAME *name)
  441. {
  442. int idx;
  443. idx = X509_OBJECT_idx_by_subject(h, type, name);
  444. if (idx == -1)
  445. return NULL;
  446. return sk_X509_OBJECT_value(h, idx);
  447. }
  448. STACK_OF(X509_OBJECT) *X509_STORE_get0_objects(X509_STORE *st)
  449. {
  450. return st->objs;
  451. }
  452. STACK_OF (X509) * X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
  453. {
  454. int i, idx, cnt;
  455. STACK_OF(X509) *sk;
  456. X509 *x;
  457. X509_OBJECT *obj;
  458. sk = sk_X509_new_null();
  459. if (sk == NULL)
  460. return NULL;
  461. CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
  462. idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
  463. if (idx < 0) {
  464. /*
  465. * Nothing found in cache: do lookup to possibly add new objects to
  466. * cache
  467. */
  468. X509_OBJECT xobj;
  469. CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
  470. if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) {
  471. sk_X509_free(sk);
  472. return NULL;
  473. }
  474. X509_OBJECT_free_contents(&xobj);
  475. CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
  476. idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
  477. if (idx < 0) {
  478. CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
  479. sk_X509_free(sk);
  480. return NULL;
  481. }
  482. }
  483. for (i = 0; i < cnt; i++, idx++) {
  484. obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
  485. x = obj->data.x509;
  486. if (!sk_X509_push(sk, x)) {
  487. CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
  488. sk_X509_pop_free(sk, X509_free);
  489. return NULL;
  490. }
  491. X509_up_ref(x);
  492. }
  493. CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
  494. return sk;
  495. }
  496. STACK_OF (X509_CRL) * X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
  497. {
  498. int i, idx, cnt;
  499. STACK_OF(X509_CRL) *sk;
  500. X509_CRL *x;
  501. X509_OBJECT *obj, xobj;
  502. sk = sk_X509_CRL_new_null();
  503. if (sk == NULL)
  504. return NULL;
  505. /* Always do lookup to possibly add new CRLs to cache. */
  506. if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) {
  507. sk_X509_CRL_free(sk);
  508. return NULL;
  509. }
  510. X509_OBJECT_free_contents(&xobj);
  511. CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
  512. idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
  513. if (idx < 0) {
  514. CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
  515. sk_X509_CRL_free(sk);
  516. return NULL;
  517. }
  518. for (i = 0; i < cnt; i++, idx++) {
  519. obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
  520. x = obj->data.crl;
  521. X509_CRL_up_ref(x);
  522. if (!sk_X509_CRL_push(sk, x)) {
  523. CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
  524. X509_CRL_free(x);
  525. sk_X509_CRL_pop_free(sk, X509_CRL_free);
  526. return NULL;
  527. }
  528. }
  529. CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
  530. return sk;
  531. }
  532. X509_OBJECT *X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h,
  533. X509_OBJECT *x)
  534. {
  535. size_t idx, i;
  536. X509_OBJECT *obj;
  537. sk_X509_OBJECT_sort(h);
  538. if (!sk_X509_OBJECT_find(h, &idx, x)) {
  539. return NULL;
  540. }
  541. if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
  542. return sk_X509_OBJECT_value(h, idx);
  543. for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
  544. obj = sk_X509_OBJECT_value(h, i);
  545. if (x509_object_cmp
  546. ((const X509_OBJECT **)&obj, (const X509_OBJECT **)&x))
  547. return NULL;
  548. if (x->type == X509_LU_X509) {
  549. if (!X509_cmp(obj->data.x509, x->data.x509))
  550. return obj;
  551. } else if (x->type == X509_LU_CRL) {
  552. if (!X509_CRL_match(obj->data.crl, x->data.crl))
  553. return obj;
  554. } else
  555. return obj;
  556. }
  557. return NULL;
  558. }
  559. /*
  560. * Try to get issuer certificate from store. Due to limitations of the API
  561. * this can only retrieve a single certificate matching a given subject name.
  562. * However it will fill the cache with all matching certificates, so we can
  563. * examine the cache for all matches. Return values are: 1 lookup
  564. * successful. 0 certificate not found. -1 some other error.
  565. */
  566. int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
  567. {
  568. X509_NAME *xn;
  569. X509_OBJECT obj, *pobj;
  570. int idx, ret;
  571. size_t i;
  572. xn = X509_get_issuer_name(x);
  573. if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj))
  574. return 0;
  575. /* If certificate matches all OK */
  576. if (ctx->check_issued(ctx, x, obj.data.x509)) {
  577. *issuer = obj.data.x509;
  578. return 1;
  579. }
  580. X509_OBJECT_free_contents(&obj);
  581. /* Else find index of first cert accepted by 'check_issued' */
  582. ret = 0;
  583. CRYPTO_MUTEX_lock_write(&ctx->ctx->objs_lock);
  584. idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
  585. if (idx != -1) { /* should be true as we've had at least one
  586. * match */
  587. /* Look through all matching certs for suitable issuer */
  588. for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
  589. pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
  590. /* See if we've run past the matches */
  591. if (pobj->type != X509_LU_X509)
  592. break;
  593. if (X509_NAME_cmp(xn, X509_get_subject_name(pobj->data.x509)))
  594. break;
  595. if (ctx->check_issued(ctx, x, pobj->data.x509)) {
  596. *issuer = pobj->data.x509;
  597. X509_OBJECT_up_ref_count(pobj);
  598. ret = 1;
  599. break;
  600. }
  601. }
  602. }
  603. CRYPTO_MUTEX_unlock_write(&ctx->ctx->objs_lock);
  604. return ret;
  605. }
  606. int X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
  607. {
  608. return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
  609. }
  610. int X509_STORE_set_depth(X509_STORE *ctx, int depth)
  611. {
  612. X509_VERIFY_PARAM_set_depth(ctx->param, depth);
  613. return 1;
  614. }
  615. int X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
  616. {
  617. return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
  618. }
  619. int X509_STORE_set_trust(X509_STORE *ctx, int trust)
  620. {
  621. return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
  622. }
  623. int X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
  624. {
  625. return X509_VERIFY_PARAM_set1(ctx->param, param);
  626. }
  627. X509_VERIFY_PARAM *X509_STORE_get0_param(X509_STORE *ctx)
  628. {
  629. return ctx->param;
  630. }
  631. void X509_STORE_set_verify(X509_STORE *ctx, X509_STORE_CTX_verify_fn verify)
  632. {
  633. ctx->verify = verify;
  634. }
  635. X509_STORE_CTX_verify_fn X509_STORE_get_verify(X509_STORE *ctx)
  636. {
  637. return ctx->verify;
  638. }
  639. void X509_STORE_set_verify_cb(X509_STORE *ctx,
  640. X509_STORE_CTX_verify_cb verify_cb)
  641. {
  642. ctx->verify_cb = verify_cb;
  643. }
  644. X509_STORE_CTX_verify_cb X509_STORE_get_verify_cb(X509_STORE *ctx)
  645. {
  646. return ctx->verify_cb;
  647. }
  648. void X509_STORE_set_get_issuer(X509_STORE *ctx,
  649. X509_STORE_CTX_get_issuer_fn get_issuer)
  650. {
  651. ctx->get_issuer = get_issuer;
  652. }
  653. X509_STORE_CTX_get_issuer_fn X509_STORE_get_get_issuer(X509_STORE *ctx)
  654. {
  655. return ctx->get_issuer;
  656. }
  657. void X509_STORE_set_check_issued(X509_STORE *ctx,
  658. X509_STORE_CTX_check_issued_fn check_issued)
  659. {
  660. ctx->check_issued = check_issued;
  661. }
  662. X509_STORE_CTX_check_issued_fn X509_STORE_get_check_issued(X509_STORE *ctx)
  663. {
  664. return ctx->check_issued;
  665. }
  666. void X509_STORE_set_check_revocation(X509_STORE *ctx,
  667. X509_STORE_CTX_check_revocation_fn check_revocation)
  668. {
  669. ctx->check_revocation = check_revocation;
  670. }
  671. X509_STORE_CTX_check_revocation_fn X509_STORE_get_check_revocation(X509_STORE *ctx)
  672. {
  673. return ctx->check_revocation;
  674. }
  675. void X509_STORE_set_get_crl(X509_STORE *ctx,
  676. X509_STORE_CTX_get_crl_fn get_crl)
  677. {
  678. ctx->get_crl = get_crl;
  679. }
  680. X509_STORE_CTX_get_crl_fn X509_STORE_get_get_crl(X509_STORE *ctx)
  681. {
  682. return ctx->get_crl;
  683. }
  684. void X509_STORE_set_check_crl(X509_STORE *ctx,
  685. X509_STORE_CTX_check_crl_fn check_crl)
  686. {
  687. ctx->check_crl = check_crl;
  688. }
  689. X509_STORE_CTX_check_crl_fn X509_STORE_get_check_crl(X509_STORE *ctx)
  690. {
  691. return ctx->check_crl;
  692. }
  693. void X509_STORE_set_cert_crl(X509_STORE *ctx,
  694. X509_STORE_CTX_cert_crl_fn cert_crl)
  695. {
  696. ctx->cert_crl = cert_crl;
  697. }
  698. X509_STORE_CTX_cert_crl_fn X509_STORE_get_cert_crl(X509_STORE *ctx)
  699. {
  700. return ctx->cert_crl;
  701. }
  702. void X509_STORE_set_lookup_certs(X509_STORE *ctx,
  703. X509_STORE_CTX_lookup_certs_fn lookup_certs)
  704. {
  705. ctx->lookup_certs = lookup_certs;
  706. }
  707. X509_STORE_CTX_lookup_certs_fn X509_STORE_get_lookup_certs(X509_STORE *ctx)
  708. {
  709. return ctx->lookup_certs;
  710. }
  711. void X509_STORE_set_lookup_crls(X509_STORE *ctx,
  712. X509_STORE_CTX_lookup_crls_fn lookup_crls)
  713. {
  714. ctx->lookup_crls = lookup_crls;
  715. }
  716. X509_STORE_CTX_lookup_crls_fn X509_STORE_get_lookup_crls(X509_STORE *ctx)
  717. {
  718. return ctx->lookup_crls;
  719. }
  720. void X509_STORE_set_cleanup(X509_STORE *ctx,
  721. X509_STORE_CTX_cleanup_fn ctx_cleanup)
  722. {
  723. ctx->cleanup = ctx_cleanup;
  724. }
  725. X509_STORE_CTX_cleanup_fn X509_STORE_get_cleanup(X509_STORE *ctx)
  726. {
  727. return ctx->cleanup;
  728. }
  729. X509_STORE *X509_STORE_CTX_get0_store(X509_STORE_CTX *ctx)
  730. {
  731. return ctx->ctx;
  732. }