openssl/ssl/ssl_cert.c - Issue 2072073002: Delete bundled copy of OpenSSL and replace with README.

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Issue 2072073002: Delete bundled copy of OpenSSL and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master

Patch Set: Delete bundled copy of OpenSSL and replace with README. Created 4 years, 6 months ago

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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

117 #include <stdio.h>

118

119 #include "e_os.h"

120 #ifndef NO_SYS_TYPES_H

121 # include <sys/types.h>

122 #endif

123

124 #include "o_dir.h"

125 #include <openssl/objects.h>

126 #include <openssl/bio.h>

127 #include <openssl/pem.h>

128 #include <openssl/x509v3.h>

129 #ifndef OPENSSL_NO_DH

130 #include <openssl/dh.h>

131 #endif

132 #include <openssl/bn.h>

133 #include "ssl_locl.h"

134

135 int SSL_get_ex_data_X509_STORE_CTX_idx(void)

136 {

137 static volatile int ssl_x509_store_ctx_idx= -1;

138 int got_write_lock = 0;

139

140 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);

141

142 if (ssl_x509_store_ctx_idx < 0)

143 {

144 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);

145 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);

146 got_write_lock = 1;

147

148 if (ssl_x509_store_ctx_idx < 0)

149 {

150 ssl_x509_store_ctx_idx=X509_STORE_CTX_get_ex_new_index(

151 0,"SSL for verify callback",NULL,NULL,NULL);

152 }

153 }

154

155 if (got_write_lock)

156 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);

157 else

158 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);

159

160 return ssl_x509_store_ctx_idx;

161 }

162

163 static void ssl_cert_set_default_md(CERT *cert)

164 {

165 /* Set digest values to defaults */

166 #ifndef OPENSSL_NO_DSA

167 cert->pkeys[SSL_PKEY_DSA_SIGN].digest = EVP_sha1();

168 #endif

169 #ifndef OPENSSL_NO_RSA

170 cert->pkeys[SSL_PKEY_RSA_SIGN].digest = EVP_sha1();

171 cert->pkeys[SSL_PKEY_RSA_ENC].digest = EVP_sha1();

172 #endif

173 #ifndef OPENSSL_NO_ECDSA

174 cert->pkeys[SSL_PKEY_ECC].digest = EVP_sha1();

175 #endif

176 }

177

178 CERT *ssl_cert_new(void)

179 {

180 CERT *ret;

181

182 ret=(CERT *)OPENSSL_malloc(sizeof(CERT));

183 if (ret == NULL)

184 {

185 SSLerr(SSL_F_SSL_CERT_NEW,ERR_R_MALLOC_FAILURE);

186 return(NULL);

187 }

188 memset(ret,0,sizeof(CERT));

189

190 ret->key= &(ret->pkeys[SSL_PKEY_RSA_ENC]);

191 ret->references=1;

192 ssl_cert_set_default_md(ret);

193 return(ret);

194 }

195

196 CERT ssl_cert_dup(CERT cert)

197 {

198 CERT *ret;

199 int i;

200

201 ret = (CERT *)OPENSSL_malloc(sizeof(CERT));

202 if (ret == NULL)

203 {

204 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE);

205 return(NULL);

206 }

207

208 memset(ret, 0, sizeof(CERT));

209

210 ret->key = &ret->pkeys[cert->key - &cert->pkeys[0]];

211 /* or ret->key = ret->pkeys + (cert->key - cert->pkeys),

212 * if you find that more readable */

213

214 ret->valid = cert->valid;

215 ret->mask_k = cert->mask_k;

216 ret->mask_a = cert->mask_a;

217 ret->export_mask_k = cert->export_mask_k;

218 ret->export_mask_a = cert->export_mask_a;

219

220 #ifndef OPENSSL_NO_RSA

221 if (cert->rsa_tmp != NULL)

222 {

223 RSA_up_ref(cert->rsa_tmp);

224 ret->rsa_tmp = cert->rsa_tmp;

225 }

226 ret->rsa_tmp_cb = cert->rsa_tmp_cb;

227 #endif

228

229 #ifndef OPENSSL_NO_DH

230 if (cert->dh_tmp != NULL)

231 {

232 ret->dh_tmp = DHparams_dup(cert->dh_tmp);

233 if (ret->dh_tmp == NULL)

234 {

235 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_DH_LIB);

236 goto err;

237 }

238 if (cert->dh_tmp->priv_key)

239 {

240 BIGNUM *b = BN_dup(cert->dh_tmp->priv_key);

241 if (!b)

242 {

243 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB);

244 goto err;

245 }

246 ret->dh_tmp->priv_key = b;

247 }

248 if (cert->dh_tmp->pub_key)

249 {

250 BIGNUM *b = BN_dup(cert->dh_tmp->pub_key);

251 if (!b)

252 {

253 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB);

254 goto err;

255 }

256 ret->dh_tmp->pub_key = b;

257 }

258 }

259 ret->dh_tmp_cb = cert->dh_tmp_cb;

260 #endif

261

262 #ifndef OPENSSL_NO_ECDH

263 if (cert->ecdh_tmp)

264 {

265 ret->ecdh_tmp = EC_KEY_dup(cert->ecdh_tmp);

266 if (ret->ecdh_tmp == NULL)

267 {

268 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_EC_LIB);

269 goto err;

270 }

271 }

272 ret->ecdh_tmp_cb = cert->ecdh_tmp_cb;

273 #endif

274

275 for (i = 0; i < SSL_PKEY_NUM; i++)

276 {

277 if (cert->pkeys[i].x509 != NULL)

278 {

279 ret->pkeys[i].x509 = cert->pkeys[i].x509;

280 CRYPTO_add(&ret->pkeys[i].x509->references, 1,

281 CRYPTO_LOCK_X509);

282 }

283

284 if (cert->pkeys[i].privatekey != NULL)

285 {

286 ret->pkeys[i].privatekey = cert->pkeys[i].privatekey;

287 CRYPTO_add(&ret->pkeys[i].privatekey->references, 1,

288 CRYPTO_LOCK_EVP_PKEY);

289

290 switch(i)

291 {

292 /* If there was anything special to do for

293 * certain types of keys, we'd do it here.

294 * (Nothing at the moment, I think.) */

295

296 case SSL_PKEY_RSA_ENC:

297 case SSL_PKEY_RSA_SIGN:

298 /* We have an RSA key. */

299 break;

300

301 case SSL_PKEY_DSA_SIGN:

302 /* We have a DSA key. */

303 break;

304

305 case SSL_PKEY_DH_RSA:

306 case SSL_PKEY_DH_DSA:

307 /* We have a DH key. */

308 break;

309

310 case SSL_PKEY_ECC:

311 /* We have an ECC key */

312 break;

313

314 default:

315 /* Can't happen. */

316 SSLerr(SSL_F_SSL_CERT_DUP, SSL_R_LIBRARY_BUG);

317 }

318 }

319 }

320

321 /* ret->extra_certs should exist, but currently the own certificate

322 * chain is held inside SSL_CTX */

323

324 ret->references=1;

325 /* Set digests to defaults. NB: we don't copy existing values as they

326 * will be set during handshake.

327 */

328 ssl_cert_set_default_md(ret);

329

330 return(ret);

331

332 #if !defined(OPENSSL_NO_DH) \|\| !defined(OPENSSL_NO_ECDH)

333 err:

334 #endif

335 #ifndef OPENSSL_NO_RSA

336 if (ret->rsa_tmp != NULL)

337 RSA_free(ret->rsa_tmp);

338 #endif

339 #ifndef OPENSSL_NO_DH

340 if (ret->dh_tmp != NULL)

341 DH_free(ret->dh_tmp);

342 #endif

343 #ifndef OPENSSL_NO_ECDH

344 if (ret->ecdh_tmp != NULL)

345 EC_KEY_free(ret->ecdh_tmp);

346 #endif

347

348 for (i = 0; i < SSL_PKEY_NUM; i++)

349 {

350 if (ret->pkeys[i].x509 != NULL)

351 X509_free(ret->pkeys[i].x509);

352 if (ret->pkeys[i].privatekey != NULL)

353 EVP_PKEY_free(ret->pkeys[i].privatekey);

354 }

355

356 return NULL;

357 }

358

359

360 void ssl_cert_free(CERT *c)

361 {

362 int i;

363

364 if(c == NULL)

365 return;

366

367 i=CRYPTO_add(&c->references,-1,CRYPTO_LOCK_SSL_CERT);

368 #ifdef REF_PRINT

369 REF_PRINT("CERT",c);

370 #endif

371 if (i > 0) return;

372 #ifdef REF_CHECK

373 if (i < 0)

374 {

375 fprintf(stderr,"ssl_cert_free, bad reference count\n");

376 abort(); /* ok */

377 }

378 #endif

379

380 #ifndef OPENSSL_NO_RSA

381 if (c->rsa_tmp) RSA_free(c->rsa_tmp);

382 #endif

383 #ifndef OPENSSL_NO_DH

384 if (c->dh_tmp) DH_free(c->dh_tmp);

385 #endif

386 #ifndef OPENSSL_NO_ECDH

387 if (c->ecdh_tmp) EC_KEY_free(c->ecdh_tmp);

388 #endif

389

390 for (i=0; i<SSL_PKEY_NUM; i++)

391 {

392 if (c->pkeys[i].x509 != NULL)

393 X509_free(c->pkeys[i].x509);

394 if (c->pkeys[i].privatekey != NULL)

395 EVP_PKEY_free(c->pkeys[i].privatekey);

396 #if 0

397 if (c->pkeys[i].publickey != NULL)

398 EVP_PKEY_free(c->pkeys[i].publickey);

399 #endif

400 }

401 OPENSSL_free(c);

402 }

403

404 int ssl_cert_inst(CERT **o)

405 {

406 /* Create a CERT if there isn't already one

407 * (which cannot really happen, as it is initially created in

408 * SSL_CTX_new; but the earlier code usually allows for that one

409 * being non-existant, so we follow that behaviour, as it might

410 * turn out that there actually is a reason for it -- but I'm

411 * not sure that all of the existing code could cope with

412 * s->cert being NULL, otherwise we could do without the

413 * initialization in SSL_CTX_new).

414 */

415

416 if (o == NULL)

417 {

418 SSLerr(SSL_F_SSL_CERT_INST, ERR_R_PASSED_NULL_PARAMETER);

419 return(0);

420 }

421 if (*o == NULL)

422 {

423 if ((*o = ssl_cert_new()) == NULL)

424 {

425 SSLerr(SSL_F_SSL_CERT_INST, ERR_R_MALLOC_FAILURE);

426 return(0);

427 }

428 }

429 return(1);

430 }

431

432

433 SESS_CERT *ssl_sess_cert_new(void)

434 {

435 SESS_CERT *ret;

436

437 ret = OPENSSL_malloc(sizeof *ret);

438 if (ret == NULL)

439 {

440 SSLerr(SSL_F_SSL_SESS_CERT_NEW, ERR_R_MALLOC_FAILURE);

441 return NULL;

442 }

443

444 memset(ret, 0 ,sizeof *ret);

445 ret->peer_key = &(ret->peer_pkeys[SSL_PKEY_RSA_ENC]);

446 ret->references = 1;

447

448 return ret;

449 }

450

451 void ssl_sess_cert_free(SESS_CERT *sc)

452 {

453 int i;

454

455 if (sc == NULL)

456 return;

457

458 i = CRYPTO_add(&sc->references, -1, CRYPTO_LOCK_SSL_SESS_CERT);

459 #ifdef REF_PRINT

460 REF_PRINT("SESS_CERT", sc);

461 #endif

462 if (i > 0)

463 return;

464 #ifdef REF_CHECK

465 if (i < 0)

466 {

467 fprintf(stderr,"ssl_sess_cert_free, bad reference count\n");

468 abort(); /* ok */

469 }

470 #endif

471

472 /* i == 0 */

473 if (sc->cert_chain != NULL)

474 sk_X509_pop_free(sc->cert_chain, X509_free);

475 for (i = 0; i < SSL_PKEY_NUM; i++)

476 {

477 if (sc->peer_pkeys[i].x509 != NULL)

478 X509_free(sc->peer_pkeys[i].x509);

479 #if 0 /* We don't have the peer's private key. These lines are just

480 * here as a reminder that we're still using a not-quite-appropriate

481 * data structure. */

482 if (sc->peer_pkeys[i].privatekey != NULL)

483 EVP_PKEY_free(sc->peer_pkeys[i].privatekey);

484 #endif

485 }

486

487 #ifndef OPENSSL_NO_RSA

488 if (sc->peer_rsa_tmp != NULL)

489 RSA_free(sc->peer_rsa_tmp);

490 #endif

491 #ifndef OPENSSL_NO_DH

492 if (sc->peer_dh_tmp != NULL)

493 DH_free(sc->peer_dh_tmp);

494 #endif

495 #ifndef OPENSSL_NO_ECDH

496 if (sc->peer_ecdh_tmp != NULL)

497 EC_KEY_free(sc->peer_ecdh_tmp);

498 #endif

499

500 OPENSSL_free(sc);

501 }

502

503 int ssl_set_peer_cert_type(SESS_CERT *sc,int type)

504 {

505 sc->peer_cert_type = type;

506 return(1);

507 }

508

509 int ssl_verify_cert_chain(SSL s,STACK_OF(X509) sk)

510 {

511 X509 *x;

512 int i;

513 X509_STORE_CTX ctx;

514

515 if ((sk == NULL) \|\| (sk_X509_num(sk) == 0))

516 return(0);

517

518 x=sk_X509_value(sk,0);

519 if(!X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk))

520 {

521 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,ERR_R_X509_LIB);

522 return(0);

523 }

524 #if 0

525 if (SSL_get_verify_depth(s) >= 0)

526 X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s));

527 #endif

528 X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),s);

529

530 /* We need to inherit the verify parameters. These can be determined by

531 * the context: if its a server it will verify SSL client certificates

532 * or vice versa.

533 */

534

535 X509_STORE_CTX_set_default(&ctx,

536 s->server ? "ssl_client" : "ssl_server");

537 /* Anything non-default in "param" should overwrite anything in the

538 * ctx.

539 */

540 X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx), s->param);

541

542 if (s->verify_callback)

543 X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback);

544

545 if (s->ctx->app_verify_callback != NULL)

546 #if 1 /* new with OpenSSL 0.9.7 */

547 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg);

548 #else

549 i=s->ctx->app_verify_callback(&ctx); /* should pass app_verify_a rg */

550 #endif

551 else

552 {

553 #ifndef OPENSSL_NO_X509_VERIFY

554 i=X509_verify_cert(&ctx);

555 #else

556 i=0;

557 ctx.error=X509_V_ERR_APPLICATION_VERIFICATION;

558 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_NO_VERIFY_CALLBACK);

559 #endif

560 }

561

562 s->verify_result=ctx.error;

563 X509_STORE_CTX_cleanup(&ctx);

564

565 return(i);

566 }

567

568 static void set_client_CA_list(STACK_OF(X509_NAME) *ca_list,STACK_OF(X509_NAME) name_list)

569 {

570 if (*ca_list != NULL)

571 sk_X509_NAME_pop_free(*ca_list,X509_NAME_free);

572

573 *ca_list=name_list;

574 }

575

576 STACK_OF(X509_NAME) SSL_dup_CA_list(STACK_OF(X509_NAME) sk)

577 {

578 int i;

579 STACK_OF(X509_NAME) *ret;

580 X509_NAME *name;

581

582 ret=sk_X509_NAME_new_null();

583 for (i=0; i<sk_X509_NAME_num(sk); i++)

584 {

585 name=X509_NAME_dup(sk_X509_NAME_value(sk,i));

586 if ((name == NULL) \|\| !sk_X509_NAME_push(ret,name))

587 {

588 sk_X509_NAME_pop_free(ret,X509_NAME_free);

589 return(NULL);

590 }

591 }

592 return(ret);

593 }

594

595 void SSL_set_client_CA_list(SSL s,STACK_OF(X509_NAME) name_list)

596 {

597 set_client_CA_list(&(s->client_CA),name_list);

598 }

599

600 void SSL_CTX_set_client_CA_list(SSL_CTX ctx,STACK_OF(X509_NAME) name_list)

601 {

602 set_client_CA_list(&(ctx->client_CA),name_list);

603 }

604

605 STACK_OF(X509_NAME) SSL_CTX_get_client_CA_list(const SSL_CTX ctx)

606 {

607 return(ctx->client_CA);

608 }

609

610 STACK_OF(X509_NAME) SSL_get_client_CA_list(const SSL s)

611 {

612 if (s->type == SSL_ST_CONNECT)

613 { /* we are in the client */

614 if (((s->version>>8) == SSL3_VERSION_MAJOR) &&

615 (s->s3 != NULL))

616 return(s->s3->tmp.ca_names);

617 else

618 return(NULL);

619 }

620 else

621 {

622 if (s->client_CA != NULL)

623 return(s->client_CA);

624 else

625 return(s->ctx->client_CA);

626 }

627 }

628

629 static int add_client_CA(STACK_OF(X509_NAME) *sk,X509 x)

630 {

631 X509_NAME *name;

632

633 if (x == NULL) return(0);

634 if ((sk == NULL) && ((sk=sk_X509_NAME_new_null()) == NULL))

635 return(0);

636

637 if ((name=X509_NAME_dup(X509_get_subject_name(x))) == NULL)

638 return(0);

639

640 if (!sk_X509_NAME_push(*sk,name))

641 {

642 X509_NAME_free(name);

643 return(0);

644 }

645 return(1);

646 }

647

648 int SSL_add_client_CA(SSL ssl,X509 x)

649 {

650 return(add_client_CA(&(ssl->client_CA),x));

651 }

652

653 int SSL_CTX_add_client_CA(SSL_CTX ctx,X509 x)

654 {

655 return(add_client_CA(&(ctx->client_CA),x));

656 }

657

658 void SSL_get_client_certificate_types(const SSL s, const unsigned char *ctype,

659 size_t *ctype_num)

660 {

661 if (s->s3 == NULL)

662 {

663 *ctype = NULL;

664 *ctype_num = 0;

665 return;

666 }

667

668 /* This always returns nothing for the server. */

669 *ctype = s->s3->tmp.ctype;

670 *ctype_num = s->s3->tmp.ctype_num;

671 }

672

673 static int xname_cmp(const X509_NAME * const a, const X509_NAME const *b)

674 {

675 return(X509_NAME_cmp(a,b));

676 }

677

678 #ifndef OPENSSL_NO_STDIO

679 /*!

680 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;

681 * it doesn't really have anything to do with clients (except that a common use

682 * for a stack of CAs is to send it to the client). Actually, it doesn't have

683 * much to do with CAs, either, since it will load any old cert.

684 * \param file the file containing one or more certs.

685 * \return a ::STACK containing the certs.

686 */

687 STACK_OF(X509_NAME) SSL_load_client_CA_file(const char file)

688 {

689 BIO *in;

690 X509 *x=NULL;

691 X509_NAME *xn=NULL;

692 STACK_OF(X509_NAME) ret = NULL,sk;

693

694 sk=sk_X509_NAME_new(xname_cmp);

695

696 in=BIO_new(BIO_s_file_internal());

697

698 if ((sk == NULL) \|\| (in == NULL))

699 {

700 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);

701 goto err;

702 }

703

704 if (!BIO_read_filename(in,file))

705 goto err;

706

707 for (;;)

708 {

709 if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL)

710 break;

711 if (ret == NULL)

712 {

713 ret = sk_X509_NAME_new_null();

714 if (ret == NULL)

715 {

716 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLO C_FAILURE);

717 goto err;

718 }

719 }

720 if ((xn=X509_get_subject_name(x)) == NULL) goto err;

721 /* check for duplicates */

722 xn=X509_NAME_dup(xn);

723 if (xn == NULL) goto err;

724 if (sk_X509_NAME_find(sk,xn) >= 0)

725 X509_NAME_free(xn);

726 else

727 {

728 sk_X509_NAME_push(sk,xn);

729 sk_X509_NAME_push(ret,xn);

730 }

731 }

732

733 if (0)

734 {

735 err:

736 if (ret != NULL) sk_X509_NAME_pop_free(ret,X509_NAME_free);

737 ret=NULL;

738 }

739 if (sk != NULL) sk_X509_NAME_free(sk);

740 if (in != NULL) BIO_free(in);

741 if (x != NULL) X509_free(x);

742 if (ret != NULL)

743 ERR_clear_error();

744 return(ret);

745 }

746 #endif

747

748 /*!

749 * Add a file of certs to a stack.

750 * \param stack the stack to add to.

751 * \param file the file to add from. All certs in this file that are not

752 * already in the stack will be added.

753 * \return 1 for success, 0 for failure. Note that in the case of failure some

754 * certs may have been added to \c stack.

755 */

756

757 int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,

758 const char *file)

759 {

760 BIO *in;

761 X509 *x=NULL;

762 X509_NAME *xn=NULL;

763 int ret=1;

764 int (oldcmp)(const X509_NAME const a, const X509_NAME const *b);

765

766 oldcmp=sk_X509_NAME_set_cmp_func(stack,xname_cmp);

767

768 in=BIO_new(BIO_s_file_internal());

769

770 if (in == NULL)

771 {

772 SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK,ERR_R_MALLOC_FA ILURE);

773 goto err;

774 }

775

776 if (!BIO_read_filename(in,file))

777 goto err;

778

779 for (;;)

780 {

781 if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL)

782 break;

783 if ((xn=X509_get_subject_name(x)) == NULL) goto err;

784 xn=X509_NAME_dup(xn);

785 if (xn == NULL) goto err;

786 if (sk_X509_NAME_find(stack,xn) >= 0)

787 X509_NAME_free(xn);

788 else

789 sk_X509_NAME_push(stack,xn);

790 }

791

792 ERR_clear_error();

793

794 if (0)

795 {

796 err:

797 ret=0;

798 }

799 if(in != NULL)

800 BIO_free(in);

801 if(x != NULL)

802 X509_free(x);

803

804 (void)sk_X509_NAME_set_cmp_func(stack,oldcmp);

805

806 return ret;

807 }

808

809 /*!

810 * Add a directory of certs to a stack.

811 * \param stack the stack to append to.

812 * \param dir the directory to append from. All files in this directory will be

813 * examined as potential certs. Any that are acceptable to

814 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will b e

815 * included.

816 * \return 1 for success, 0 for failure. Note that in the case of failure some

817 * certs may have been added to \c stack.

818 */

819

820 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,

821 const char *dir)

822 {

823 OPENSSL_DIR_CTX *d = NULL;

824 const char *filename;

825 int ret = 0;

826

827 CRYPTO_w_lock(CRYPTO_LOCK_READDIR);

828

829 /* Note that a side effect is that the CAs will be sorted by name */

830

831 while((filename = OPENSSL_DIR_read(&d, dir)))

832 {

833 char buf[1024];

834 int r;

835

836 if(strlen(dir)+strlen(filename)+2 > sizeof buf)

837 {

838 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PA TH_TOO_LONG);

839 goto err;

840 }

841

842 #ifdef OPENSSL_SYS_VMS

843 r = BIO_snprintf(buf,sizeof buf,"%s%s",dir,filename);

844 #else

845 r = BIO_snprintf(buf,sizeof buf,"%s/%s",dir,filename);

846 #endif

847 if (r <= 0 \|\| r >= (int)sizeof(buf))

848 goto err;

849 if(!SSL_add_file_cert_subjects_to_stack(stack,buf))

850 goto err;

851 }

852

853 if (errno)

854 {

855 SYSerr(SYS_F_OPENDIR, get_last_sys_error());

856 ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')");

857 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);

858 goto err;

859 }

860

861 ret = 1;

862

863 err:

864 if (d) OPENSSL_DIR_end(&d);

865 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);

866 return ret;

867 }

868

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