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ssl_cert.c 22 KB

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  1. /*! \file ssl/ssl_cert.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. * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
  60. *
  61. * Redistribution and use in source and binary forms, with or without
  62. * modification, are permitted provided that the following conditions
  63. * are met:
  64. *
  65. * 1. Redistributions of source code must retain the above copyright
  66. * notice, this list of conditions and the following disclaimer.
  67. *
  68. * 2. Redistributions in binary form must reproduce the above copyright
  69. * notice, this list of conditions and the following disclaimer in
  70. * the documentation and/or other materials provided with the
  71. * distribution.
  72. *
  73. * 3. All advertising materials mentioning features or use of this
  74. * software must display the following acknowledgment:
  75. * "This product includes software developed by the OpenSSL Project
  76. * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77. *
  78. * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79. * endorse or promote products derived from this software without
  80. * prior written permission. For written permission, please contact
  81. * openssl-core@openssl.org.
  82. *
  83. * 5. Products derived from this software may not be called "OpenSSL"
  84. * nor may "OpenSSL" appear in their names without prior written
  85. * permission of the OpenSSL Project.
  86. *
  87. * 6. Redistributions of any form whatsoever must retain the following
  88. * acknowledgment:
  89. * "This product includes software developed by the OpenSSL Project
  90. * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91. *
  92. * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93. * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96. * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  100. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  101. * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  102. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  103. * OF THE POSSIBILITY OF SUCH DAMAGE.
  104. * ====================================================================
  105. *
  106. * This product includes cryptographic software written by Eric Young
  107. * (eay@cryptsoft.com). This product includes software written by Tim
  108. * Hudson (tjh@cryptsoft.com).
  109. *
  110. */
  111. /* ====================================================================
  112. * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
  113. * ECC cipher suite support in OpenSSL originally developed by
  114. * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
  115. */
  116. #include <stdio.h>
  117. #include "e_os.h"
  118. #ifndef NO_SYS_TYPES_H
  119. # include <sys/types.h>
  120. #endif
  121. #include "o_dir.h"
  122. #include <openssl/objects.h>
  123. #include <openssl/bio.h>
  124. #include <openssl/pem.h>
  125. #include <openssl/x509v3.h>
  126. #ifndef OPENSSL_NO_DH
  127. #include <openssl/dh.h>
  128. #endif
  129. #include <openssl/bn.h>
  130. #include "ssl_locl.h"
  131. int SSL_get_ex_data_X509_STORE_CTX_idx(void)
  132. {
  133. static volatile int ssl_x509_store_ctx_idx= -1;
  134. int got_write_lock = 0;
  135. CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
  136. if (ssl_x509_store_ctx_idx < 0)
  137. {
  138. CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
  139. CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
  140. got_write_lock = 1;
  141. if (ssl_x509_store_ctx_idx < 0)
  142. {
  143. ssl_x509_store_ctx_idx=X509_STORE_CTX_get_ex_new_index(
  144. 0,"SSL for verify callback",NULL,NULL,NULL);
  145. }
  146. }
  147. if (got_write_lock)
  148. CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
  149. else
  150. CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
  151. return ssl_x509_store_ctx_idx;
  152. }
  153. static void ssl_cert_set_default_md(CERT *cert)
  154. {
  155. /* Set digest values to defaults */
  156. #ifndef OPENSSL_NO_DSA
  157. cert->pkeys[SSL_PKEY_DSA_SIGN].digest = EVP_dss1();
  158. #endif
  159. #ifndef OPENSSL_NO_RSA
  160. cert->pkeys[SSL_PKEY_RSA_SIGN].digest = EVP_sha1();
  161. cert->pkeys[SSL_PKEY_RSA_ENC].digest = EVP_sha1();
  162. #endif
  163. #ifndef OPENSSL_NO_ECDSA
  164. cert->pkeys[SSL_PKEY_ECC].digest = EVP_ecdsa();
  165. #endif
  166. }
  167. CERT *ssl_cert_new(void)
  168. {
  169. CERT *ret;
  170. ret=(CERT *)OPENSSL_malloc(sizeof(CERT));
  171. if (ret == NULL)
  172. {
  173. SSLerr(SSL_F_SSL_CERT_NEW,ERR_R_MALLOC_FAILURE);
  174. return(NULL);
  175. }
  176. memset(ret,0,sizeof(CERT));
  177. ret->key= &(ret->pkeys[SSL_PKEY_RSA_ENC]);
  178. ret->references=1;
  179. ssl_cert_set_default_md(ret);
  180. return(ret);
  181. }
  182. CERT *ssl_cert_dup(CERT *cert)
  183. {
  184. CERT *ret;
  185. int i;
  186. ret = (CERT *)OPENSSL_malloc(sizeof(CERT));
  187. if (ret == NULL)
  188. {
  189. SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE);
  190. return(NULL);
  191. }
  192. memset(ret, 0, sizeof(CERT));
  193. ret->key = &ret->pkeys[cert->key - &cert->pkeys[0]];
  194. /* or ret->key = ret->pkeys + (cert->key - cert->pkeys),
  195. * if you find that more readable */
  196. ret->valid = cert->valid;
  197. ret->mask_k = cert->mask_k;
  198. ret->mask_a = cert->mask_a;
  199. ret->export_mask_k = cert->export_mask_k;
  200. ret->export_mask_a = cert->export_mask_a;
  201. #ifndef OPENSSL_NO_RSA
  202. if (cert->rsa_tmp != NULL)
  203. {
  204. RSA_up_ref(cert->rsa_tmp);
  205. ret->rsa_tmp = cert->rsa_tmp;
  206. }
  207. ret->rsa_tmp_cb = cert->rsa_tmp_cb;
  208. #endif
  209. #ifndef OPENSSL_NO_DH
  210. if (cert->dh_tmp != NULL)
  211. {
  212. ret->dh_tmp = DHparams_dup(cert->dh_tmp);
  213. if (ret->dh_tmp == NULL)
  214. {
  215. SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_DH_LIB);
  216. goto err;
  217. }
  218. if (cert->dh_tmp->priv_key)
  219. {
  220. BIGNUM *b = BN_dup(cert->dh_tmp->priv_key);
  221. if (!b)
  222. {
  223. SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB);
  224. goto err;
  225. }
  226. ret->dh_tmp->priv_key = b;
  227. }
  228. if (cert->dh_tmp->pub_key)
  229. {
  230. BIGNUM *b = BN_dup(cert->dh_tmp->pub_key);
  231. if (!b)
  232. {
  233. SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB);
  234. goto err;
  235. }
  236. ret->dh_tmp->pub_key = b;
  237. }
  238. }
  239. ret->dh_tmp_cb = cert->dh_tmp_cb;
  240. #endif
  241. #ifndef OPENSSL_NO_ECDH
  242. if (cert->ecdh_tmp)
  243. {
  244. ret->ecdh_tmp = EC_KEY_dup(cert->ecdh_tmp);
  245. if (ret->ecdh_tmp == NULL)
  246. {
  247. SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_EC_LIB);
  248. goto err;
  249. }
  250. }
  251. ret->ecdh_tmp_cb = cert->ecdh_tmp_cb;
  252. #endif
  253. for (i = 0; i < SSL_PKEY_NUM; i++)
  254. {
  255. if (cert->pkeys[i].x509 != NULL)
  256. {
  257. ret->pkeys[i].x509 = cert->pkeys[i].x509;
  258. CRYPTO_add(&ret->pkeys[i].x509->references, 1,
  259. CRYPTO_LOCK_X509);
  260. }
  261. if (cert->pkeys[i].privatekey != NULL)
  262. {
  263. ret->pkeys[i].privatekey = cert->pkeys[i].privatekey;
  264. CRYPTO_add(&ret->pkeys[i].privatekey->references, 1,
  265. CRYPTO_LOCK_EVP_PKEY);
  266. switch(i)
  267. {
  268. /* If there was anything special to do for
  269. * certain types of keys, we'd do it here.
  270. * (Nothing at the moment, I think.) */
  271. case SSL_PKEY_RSA_ENC:
  272. case SSL_PKEY_RSA_SIGN:
  273. /* We have an RSA key. */
  274. break;
  275. case SSL_PKEY_DSA_SIGN:
  276. /* We have a DSA key. */
  277. break;
  278. case SSL_PKEY_DH_RSA:
  279. case SSL_PKEY_DH_DSA:
  280. /* We have a DH key. */
  281. break;
  282. case SSL_PKEY_ECC:
  283. /* We have an ECC key */
  284. break;
  285. default:
  286. /* Can't happen. */
  287. SSLerr(SSL_F_SSL_CERT_DUP, SSL_R_LIBRARY_BUG);
  288. }
  289. }
  290. }
  291. /* ret->extra_certs *should* exist, but currently the own certificate
  292. * chain is held inside SSL_CTX */
  293. ret->references=1;
  294. /* Set digests to defaults. NB: we don't copy existing values as they
  295. * will be set during handshake.
  296. */
  297. ssl_cert_set_default_md(ret);
  298. return(ret);
  299. #if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_ECDH)
  300. err:
  301. #endif
  302. #ifndef OPENSSL_NO_RSA
  303. if (ret->rsa_tmp != NULL)
  304. RSA_free(ret->rsa_tmp);
  305. #endif
  306. #ifndef OPENSSL_NO_DH
  307. if (ret->dh_tmp != NULL)
  308. DH_free(ret->dh_tmp);
  309. #endif
  310. #ifndef OPENSSL_NO_ECDH
  311. if (ret->ecdh_tmp != NULL)
  312. EC_KEY_free(ret->ecdh_tmp);
  313. #endif
  314. for (i = 0; i < SSL_PKEY_NUM; i++)
  315. {
  316. if (ret->pkeys[i].x509 != NULL)
  317. X509_free(ret->pkeys[i].x509);
  318. if (ret->pkeys[i].privatekey != NULL)
  319. EVP_PKEY_free(ret->pkeys[i].privatekey);
  320. }
  321. return NULL;
  322. }
  323. void ssl_cert_free(CERT *c)
  324. {
  325. int i;
  326. if(c == NULL)
  327. return;
  328. i=CRYPTO_add(&c->references,-1,CRYPTO_LOCK_SSL_CERT);
  329. #ifdef REF_PRINT
  330. REF_PRINT("CERT",c);
  331. #endif
  332. if (i > 0) return;
  333. #ifdef REF_CHECK
  334. if (i < 0)
  335. {
  336. fprintf(stderr,"ssl_cert_free, bad reference count\n");
  337. abort(); /* ok */
  338. }
  339. #endif
  340. #ifndef OPENSSL_NO_RSA
  341. if (c->rsa_tmp) RSA_free(c->rsa_tmp);
  342. #endif
  343. #ifndef OPENSSL_NO_DH
  344. if (c->dh_tmp) DH_free(c->dh_tmp);
  345. #endif
  346. #ifndef OPENSSL_NO_ECDH
  347. if (c->ecdh_tmp) EC_KEY_free(c->ecdh_tmp);
  348. #endif
  349. for (i=0; i<SSL_PKEY_NUM; i++)
  350. {
  351. if (c->pkeys[i].x509 != NULL)
  352. X509_free(c->pkeys[i].x509);
  353. if (c->pkeys[i].privatekey != NULL)
  354. EVP_PKEY_free(c->pkeys[i].privatekey);
  355. #if 0
  356. if (c->pkeys[i].publickey != NULL)
  357. EVP_PKEY_free(c->pkeys[i].publickey);
  358. #endif
  359. }
  360. OPENSSL_free(c);
  361. }
  362. int ssl_cert_inst(CERT **o)
  363. {
  364. /* Create a CERT if there isn't already one
  365. * (which cannot really happen, as it is initially created in
  366. * SSL_CTX_new; but the earlier code usually allows for that one
  367. * being non-existant, so we follow that behaviour, as it might
  368. * turn out that there actually is a reason for it -- but I'm
  369. * not sure that *all* of the existing code could cope with
  370. * s->cert being NULL, otherwise we could do without the
  371. * initialization in SSL_CTX_new).
  372. */
  373. if (o == NULL)
  374. {
  375. SSLerr(SSL_F_SSL_CERT_INST, ERR_R_PASSED_NULL_PARAMETER);
  376. return(0);
  377. }
  378. if (*o == NULL)
  379. {
  380. if ((*o = ssl_cert_new()) == NULL)
  381. {
  382. SSLerr(SSL_F_SSL_CERT_INST, ERR_R_MALLOC_FAILURE);
  383. return(0);
  384. }
  385. }
  386. return(1);
  387. }
  388. SESS_CERT *ssl_sess_cert_new(void)
  389. {
  390. SESS_CERT *ret;
  391. ret = OPENSSL_malloc(sizeof *ret);
  392. if (ret == NULL)
  393. {
  394. SSLerr(SSL_F_SSL_SESS_CERT_NEW, ERR_R_MALLOC_FAILURE);
  395. return NULL;
  396. }
  397. memset(ret, 0 ,sizeof *ret);
  398. ret->peer_key = &(ret->peer_pkeys[SSL_PKEY_RSA_ENC]);
  399. ret->references = 1;
  400. return ret;
  401. }
  402. void ssl_sess_cert_free(SESS_CERT *sc)
  403. {
  404. int i;
  405. if (sc == NULL)
  406. return;
  407. i = CRYPTO_add(&sc->references, -1, CRYPTO_LOCK_SSL_SESS_CERT);
  408. #ifdef REF_PRINT
  409. REF_PRINT("SESS_CERT", sc);
  410. #endif
  411. if (i > 0)
  412. return;
  413. #ifdef REF_CHECK
  414. if (i < 0)
  415. {
  416. fprintf(stderr,"ssl_sess_cert_free, bad reference count\n");
  417. abort(); /* ok */
  418. }
  419. #endif
  420. /* i == 0 */
  421. if (sc->cert_chain != NULL)
  422. sk_X509_pop_free(sc->cert_chain, X509_free);
  423. for (i = 0; i < SSL_PKEY_NUM; i++)
  424. {
  425. if (sc->peer_pkeys[i].x509 != NULL)
  426. X509_free(sc->peer_pkeys[i].x509);
  427. #if 0 /* We don't have the peer's private key. These lines are just
  428. * here as a reminder that we're still using a not-quite-appropriate
  429. * data structure. */
  430. if (sc->peer_pkeys[i].privatekey != NULL)
  431. EVP_PKEY_free(sc->peer_pkeys[i].privatekey);
  432. #endif
  433. }
  434. #ifndef OPENSSL_NO_RSA
  435. if (sc->peer_rsa_tmp != NULL)
  436. RSA_free(sc->peer_rsa_tmp);
  437. #endif
  438. #ifndef OPENSSL_NO_DH
  439. if (sc->peer_dh_tmp != NULL)
  440. DH_free(sc->peer_dh_tmp);
  441. #endif
  442. #ifndef OPENSSL_NO_ECDH
  443. if (sc->peer_ecdh_tmp != NULL)
  444. EC_KEY_free(sc->peer_ecdh_tmp);
  445. #endif
  446. OPENSSL_free(sc);
  447. }
  448. int ssl_set_peer_cert_type(SESS_CERT *sc,int type)
  449. {
  450. sc->peer_cert_type = type;
  451. return(1);
  452. }
  453. int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk)
  454. {
  455. X509 *x;
  456. int i;
  457. X509_STORE_CTX ctx;
  458. if ((sk == NULL) || (sk_X509_num(sk) == 0))
  459. return(0);
  460. x=sk_X509_value(sk,0);
  461. if(!X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk))
  462. {
  463. SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,ERR_R_X509_LIB);
  464. return(0);
  465. }
  466. #if 0
  467. if (SSL_get_verify_depth(s) >= 0)
  468. X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s));
  469. #endif
  470. X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),s);
  471. /* We need to inherit the verify parameters. These can be determined by
  472. * the context: if its a server it will verify SSL client certificates
  473. * or vice versa.
  474. */
  475. X509_STORE_CTX_set_default(&ctx,
  476. s->server ? "ssl_client" : "ssl_server");
  477. /* Anything non-default in "param" should overwrite anything in the
  478. * ctx.
  479. */
  480. X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx), s->param);
  481. if (s->verify_callback)
  482. X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback);
  483. if (s->ctx->app_verify_callback != NULL)
  484. #if 1 /* new with OpenSSL 0.9.7 */
  485. i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg);
  486. #else
  487. i=s->ctx->app_verify_callback(&ctx); /* should pass app_verify_arg */
  488. #endif
  489. else
  490. {
  491. #ifndef OPENSSL_NO_X509_VERIFY
  492. i=X509_verify_cert(&ctx);
  493. #else
  494. i=0;
  495. ctx.error=X509_V_ERR_APPLICATION_VERIFICATION;
  496. SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_NO_VERIFY_CALLBACK);
  497. #endif
  498. }
  499. s->verify_result=ctx.error;
  500. X509_STORE_CTX_cleanup(&ctx);
  501. return(i);
  502. }
  503. static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list,STACK_OF(X509_NAME) *name_list)
  504. {
  505. if (*ca_list != NULL)
  506. sk_X509_NAME_pop_free(*ca_list,X509_NAME_free);
  507. *ca_list=name_list;
  508. }
  509. STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk)
  510. {
  511. int i;
  512. STACK_OF(X509_NAME) *ret;
  513. X509_NAME *name;
  514. ret=sk_X509_NAME_new_null();
  515. for (i=0; i<sk_X509_NAME_num(sk); i++)
  516. {
  517. name=X509_NAME_dup(sk_X509_NAME_value(sk,i));
  518. if ((name == NULL) || !sk_X509_NAME_push(ret,name))
  519. {
  520. sk_X509_NAME_pop_free(ret,X509_NAME_free);
  521. return(NULL);
  522. }
  523. }
  524. return(ret);
  525. }
  526. void SSL_set_client_CA_list(SSL *s,STACK_OF(X509_NAME) *name_list)
  527. {
  528. set_client_CA_list(&(s->client_CA),name_list);
  529. }
  530. void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,STACK_OF(X509_NAME) *name_list)
  531. {
  532. set_client_CA_list(&(ctx->client_CA),name_list);
  533. }
  534. STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx)
  535. {
  536. return(ctx->client_CA);
  537. }
  538. STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s)
  539. {
  540. if (s->type == SSL_ST_CONNECT)
  541. { /* we are in the client */
  542. if (((s->version>>8) == SSL3_VERSION_MAJOR) &&
  543. (s->s3 != NULL))
  544. return(s->s3->tmp.ca_names);
  545. else
  546. return(NULL);
  547. }
  548. else
  549. {
  550. if (s->client_CA != NULL)
  551. return(s->client_CA);
  552. else
  553. return(s->ctx->client_CA);
  554. }
  555. }
  556. static int add_client_CA(STACK_OF(X509_NAME) **sk,X509 *x)
  557. {
  558. X509_NAME *name;
  559. if (x == NULL) return(0);
  560. if ((*sk == NULL) && ((*sk=sk_X509_NAME_new_null()) == NULL))
  561. return(0);
  562. if ((name=X509_NAME_dup(X509_get_subject_name(x))) == NULL)
  563. return(0);
  564. if (!sk_X509_NAME_push(*sk,name))
  565. {
  566. X509_NAME_free(name);
  567. return(0);
  568. }
  569. return(1);
  570. }
  571. int SSL_add_client_CA(SSL *ssl,X509 *x)
  572. {
  573. return(add_client_CA(&(ssl->client_CA),x));
  574. }
  575. int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x)
  576. {
  577. return(add_client_CA(&(ctx->client_CA),x));
  578. }
  579. static int xname_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
  580. {
  581. return(X509_NAME_cmp(*a,*b));
  582. }
  583. #ifndef OPENSSL_NO_STDIO
  584. /*!
  585. * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
  586. * it doesn't really have anything to do with clients (except that a common use
  587. * for a stack of CAs is to send it to the client). Actually, it doesn't have
  588. * much to do with CAs, either, since it will load any old cert.
  589. * \param file the file containing one or more certs.
  590. * \return a ::STACK containing the certs.
  591. */
  592. STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file)
  593. {
  594. BIO *in;
  595. X509 *x=NULL;
  596. X509_NAME *xn=NULL;
  597. STACK_OF(X509_NAME) *ret = NULL,*sk;
  598. sk=sk_X509_NAME_new(xname_cmp);
  599. in=BIO_new(BIO_s_file_internal());
  600. if ((sk == NULL) || (in == NULL))
  601. {
  602. SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);
  603. goto err;
  604. }
  605. if (!BIO_read_filename(in,file))
  606. goto err;
  607. for (;;)
  608. {
  609. if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL)
  610. break;
  611. if (ret == NULL)
  612. {
  613. ret = sk_X509_NAME_new_null();
  614. if (ret == NULL)
  615. {
  616. SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);
  617. goto err;
  618. }
  619. }
  620. if ((xn=X509_get_subject_name(x)) == NULL) goto err;
  621. /* check for duplicates */
  622. xn=X509_NAME_dup(xn);
  623. if (xn == NULL) goto err;
  624. if (sk_X509_NAME_find(sk,xn) >= 0)
  625. X509_NAME_free(xn);
  626. else
  627. {
  628. sk_X509_NAME_push(sk,xn);
  629. sk_X509_NAME_push(ret,xn);
  630. }
  631. }
  632. if (0)
  633. {
  634. err:
  635. if (ret != NULL) sk_X509_NAME_pop_free(ret,X509_NAME_free);
  636. ret=NULL;
  637. }
  638. if (sk != NULL) sk_X509_NAME_free(sk);
  639. if (in != NULL) BIO_free(in);
  640. if (x != NULL) X509_free(x);
  641. if (ret != NULL)
  642. ERR_clear_error();
  643. return(ret);
  644. }
  645. #endif
  646. /*!
  647. * Add a file of certs to a stack.
  648. * \param stack the stack to add to.
  649. * \param file the file to add from. All certs in this file that are not
  650. * already in the stack will be added.
  651. * \return 1 for success, 0 for failure. Note that in the case of failure some
  652. * certs may have been added to \c stack.
  653. */
  654. int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
  655. const char *file)
  656. {
  657. BIO *in;
  658. X509 *x=NULL;
  659. X509_NAME *xn=NULL;
  660. int ret=1;
  661. int (*oldcmp)(const X509_NAME * const *a, const X509_NAME * const *b);
  662. oldcmp=sk_X509_NAME_set_cmp_func(stack,xname_cmp);
  663. in=BIO_new(BIO_s_file_internal());
  664. if (in == NULL)
  665. {
  666. SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK,ERR_R_MALLOC_FAILURE);
  667. goto err;
  668. }
  669. if (!BIO_read_filename(in,file))
  670. goto err;
  671. for (;;)
  672. {
  673. if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL)
  674. break;
  675. if ((xn=X509_get_subject_name(x)) == NULL) goto err;
  676. xn=X509_NAME_dup(xn);
  677. if (xn == NULL) goto err;
  678. if (sk_X509_NAME_find(stack,xn) >= 0)
  679. X509_NAME_free(xn);
  680. else
  681. sk_X509_NAME_push(stack,xn);
  682. }
  683. ERR_clear_error();
  684. if (0)
  685. {
  686. err:
  687. ret=0;
  688. }
  689. if(in != NULL)
  690. BIO_free(in);
  691. if(x != NULL)
  692. X509_free(x);
  693. (void)sk_X509_NAME_set_cmp_func(stack,oldcmp);
  694. return ret;
  695. }
  696. /*!
  697. * Add a directory of certs to a stack.
  698. * \param stack the stack to append to.
  699. * \param dir the directory to append from. All files in this directory will be
  700. * examined as potential certs. Any that are acceptable to
  701. * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be
  702. * included.
  703. * \return 1 for success, 0 for failure. Note that in the case of failure some
  704. * certs may have been added to \c stack.
  705. */
  706. int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
  707. const char *dir)
  708. {
  709. OPENSSL_DIR_CTX *d = NULL;
  710. const char *filename;
  711. int ret = 0;
  712. CRYPTO_w_lock(CRYPTO_LOCK_READDIR);
  713. /* Note that a side effect is that the CAs will be sorted by name */
  714. while((filename = OPENSSL_DIR_read(&d, dir)))
  715. {
  716. char buf[1024];
  717. int r;
  718. if(strlen(dir)+strlen(filename)+2 > sizeof buf)
  719. {
  720. SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
  721. goto err;
  722. }
  723. #ifdef OPENSSL_SYS_VMS
  724. r = BIO_snprintf(buf,sizeof buf,"%s%s",dir,filename);
  725. #else
  726. r = BIO_snprintf(buf,sizeof buf,"%s/%s",dir,filename);
  727. #endif
  728. if (r <= 0 || r >= (int)sizeof(buf))
  729. goto err;
  730. if(!SSL_add_file_cert_subjects_to_stack(stack,buf))
  731. goto err;
  732. }
  733. if (errno)
  734. {
  735. SYSerr(SYS_F_OPENDIR, get_last_sys_error());
  736. ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')");
  737. SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);
  738. goto err;
  739. }
  740. ret = 1;
  741. err:
  742. if (d) OPENSSL_DIR_end(&d);
  743. CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
  744. return ret;
  745. }