ssl_lib.c revision 1.224
1/* $OpenBSD: ssl_lib.c,v 1.224 2020/09/11 17:23:44 jsing Exp $ */ 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58/* ==================================================================== 59 * 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 * Copyright 2005 Nokia. All rights reserved. 118 * 119 * The portions of the attached software ("Contribution") is developed by 120 * Nokia Corporation and is licensed pursuant to the OpenSSL open source 121 * license. 122 * 123 * The Contribution, originally written by Mika Kousa and Pasi Eronen of 124 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites 125 * support (see RFC 4279) to OpenSSL. 126 * 127 * No patent licenses or other rights except those expressly stated in 128 * the OpenSSL open source license shall be deemed granted or received 129 * expressly, by implication, estoppel, or otherwise. 130 * 131 * No assurances are provided by Nokia that the Contribution does not 132 * infringe the patent or other intellectual property rights of any third 133 * party or that the license provides you with all the necessary rights 134 * to make use of the Contribution. 135 * 136 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN 137 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA 138 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY 139 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR 140 * OTHERWISE. 141 */ 142 143#include <arpa/inet.h> 144#include <sys/socket.h> 145#include <netinet/in.h> 146 147#include <stdio.h> 148 149#include "ssl_locl.h" 150 151#include <openssl/bn.h> 152#include <openssl/dh.h> 153#include <openssl/lhash.h> 154#include <openssl/objects.h> 155#include <openssl/ocsp.h> 156#include <openssl/x509v3.h> 157 158#ifndef OPENSSL_NO_ENGINE 159#include <openssl/engine.h> 160#endif 161 162#include "bytestring.h" 163#include "ssl_sigalgs.h" 164 165const char *SSL_version_str = OPENSSL_VERSION_TEXT; 166 167int 168SSL_clear(SSL *s) 169{ 170 if (s->method == NULL) { 171 SSLerror(s, SSL_R_NO_METHOD_SPECIFIED); 172 return (0); 173 } 174 175 if (ssl_clear_bad_session(s)) { 176 SSL_SESSION_free(s->session); 177 s->session = NULL; 178 } 179 180 s->error = 0; 181 s->internal->hit = 0; 182 s->internal->shutdown = 0; 183 184 if (s->internal->renegotiate) { 185 SSLerror(s, ERR_R_INTERNAL_ERROR); 186 return (0); 187 } 188 189 s->internal->type = 0; 190 191 s->version = s->method->internal->version; 192 s->client_version = s->version; 193 s->internal->rwstate = SSL_NOTHING; 194 s->internal->rstate = SSL_ST_READ_HEADER; 195 196 tls13_ctx_free(s->internal->tls13); 197 s->internal->tls13 = NULL; 198 199 BUF_MEM_free(s->internal->init_buf); 200 s->internal->init_buf = NULL; 201 202 ssl_clear_cipher_state(s); 203 204 s->internal->first_packet = 0; 205 206 /* 207 * Check to see if we were changed into a different method, if 208 * so, revert back if we are not doing session-id reuse. 209 */ 210 if (!s->internal->in_handshake && (s->session == NULL) && 211 (s->method != s->ctx->method)) { 212 s->method->internal->ssl_free(s); 213 s->method = s->ctx->method; 214 if (!s->method->internal->ssl_new(s)) 215 return (0); 216 } else 217 s->method->internal->ssl_clear(s); 218 219 S3I(s)->hs.state = SSL_ST_BEFORE|((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT); 220 221 return (1); 222} 223 224/* Used to change an SSL_CTXs default SSL method type */ 225int 226SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 227{ 228 STACK_OF(SSL_CIPHER) *ciphers; 229 230 ctx->method = meth; 231 232 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 233 &ctx->internal->cipher_list_by_id, SSL_DEFAULT_CIPHER_LIST); 234 if (ciphers == NULL || sk_SSL_CIPHER_num(ciphers) <= 0) { 235 SSLerrorx(SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 236 return (0); 237 } 238 return (1); 239} 240 241SSL * 242SSL_new(SSL_CTX *ctx) 243{ 244 SSL *s; 245 246 if (ctx == NULL) { 247 SSLerrorx(SSL_R_NULL_SSL_CTX); 248 return (NULL); 249 } 250 if (ctx->method == NULL) { 251 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 252 return (NULL); 253 } 254 255 if ((s = calloc(1, sizeof(*s))) == NULL) 256 goto err; 257 if ((s->internal = calloc(1, sizeof(*s->internal))) == NULL) 258 goto err; 259 260 s->internal->min_version = ctx->internal->min_version; 261 s->internal->max_version = ctx->internal->max_version; 262 263 s->internal->options = ctx->internal->options; 264 s->internal->mode = ctx->internal->mode; 265 s->internal->max_cert_list = ctx->internal->max_cert_list; 266 267 if ((s->cert = ssl_cert_dup(ctx->internal->cert)) == NULL) 268 goto err; 269 270 s->internal->read_ahead = ctx->internal->read_ahead; 271 s->internal->msg_callback = ctx->internal->msg_callback; 272 s->internal->msg_callback_arg = ctx->internal->msg_callback_arg; 273 s->verify_mode = ctx->verify_mode; 274 s->sid_ctx_length = ctx->sid_ctx_length; 275 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 276 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); 277 s->internal->verify_callback = ctx->internal->default_verify_callback; 278 s->internal->generate_session_id = ctx->internal->generate_session_id; 279 280 s->param = X509_VERIFY_PARAM_new(); 281 if (!s->param) 282 goto err; 283 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 284 s->internal->quiet_shutdown = ctx->internal->quiet_shutdown; 285 s->max_send_fragment = ctx->internal->max_send_fragment; 286 287 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 288 s->ctx = ctx; 289 s->internal->tlsext_debug_cb = 0; 290 s->internal->tlsext_debug_arg = NULL; 291 s->internal->tlsext_ticket_expected = 0; 292 s->tlsext_status_type = -1; 293 s->internal->tlsext_status_expected = 0; 294 s->internal->tlsext_ocsp_ids = NULL; 295 s->internal->tlsext_ocsp_exts = NULL; 296 s->internal->tlsext_ocsp_resp = NULL; 297 s->internal->tlsext_ocsp_resp_len = 0; 298 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 299 s->initial_ctx = ctx; 300 301 if (ctx->internal->tlsext_ecpointformatlist != NULL) { 302 s->internal->tlsext_ecpointformatlist = 303 calloc(ctx->internal->tlsext_ecpointformatlist_length, 304 sizeof(ctx->internal->tlsext_ecpointformatlist[0])); 305 if (s->internal->tlsext_ecpointformatlist == NULL) 306 goto err; 307 memcpy(s->internal->tlsext_ecpointformatlist, 308 ctx->internal->tlsext_ecpointformatlist, 309 ctx->internal->tlsext_ecpointformatlist_length * 310 sizeof(ctx->internal->tlsext_ecpointformatlist[0])); 311 s->internal->tlsext_ecpointformatlist_length = 312 ctx->internal->tlsext_ecpointformatlist_length; 313 } 314 if (ctx->internal->tlsext_supportedgroups != NULL) { 315 s->internal->tlsext_supportedgroups = 316 calloc(ctx->internal->tlsext_supportedgroups_length, 317 sizeof(ctx->internal->tlsext_supportedgroups[0])); 318 if (s->internal->tlsext_supportedgroups == NULL) 319 goto err; 320 memcpy(s->internal->tlsext_supportedgroups, 321 ctx->internal->tlsext_supportedgroups, 322 ctx->internal->tlsext_supportedgroups_length * 323 sizeof(ctx->internal->tlsext_supportedgroups[0])); 324 s->internal->tlsext_supportedgroups_length = 325 ctx->internal->tlsext_supportedgroups_length; 326 } 327 328 if (s->ctx->internal->alpn_client_proto_list != NULL) { 329 s->internal->alpn_client_proto_list = 330 malloc(s->ctx->internal->alpn_client_proto_list_len); 331 if (s->internal->alpn_client_proto_list == NULL) 332 goto err; 333 memcpy(s->internal->alpn_client_proto_list, 334 s->ctx->internal->alpn_client_proto_list, 335 s->ctx->internal->alpn_client_proto_list_len); 336 s->internal->alpn_client_proto_list_len = 337 s->ctx->internal->alpn_client_proto_list_len; 338 } 339 340 s->verify_result = X509_V_OK; 341 342 s->method = ctx->method; 343 344 if (!s->method->internal->ssl_new(s)) 345 goto err; 346 347 if ((s->internal->rl = tls12_record_layer_new()) == NULL) 348 goto err; 349 350 s->references = 1; 351 s->server = (ctx->method->internal->ssl_accept == ssl_undefined_function) ? 0 : 1; 352 353 SSL_clear(s); 354 355 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 356 357 return (s); 358 359 err: 360 SSL_free(s); 361 SSLerrorx(ERR_R_MALLOC_FAILURE); 362 return (NULL); 363} 364 365int 366SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 367 unsigned int sid_ctx_len) 368{ 369 if (sid_ctx_len > sizeof ctx->sid_ctx) { 370 SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 371 return (0); 372 } 373 ctx->sid_ctx_length = sid_ctx_len; 374 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 375 376 return (1); 377} 378 379int 380SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 381 unsigned int sid_ctx_len) 382{ 383 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 384 SSLerror(ssl, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 385 return (0); 386 } 387 ssl->sid_ctx_length = sid_ctx_len; 388 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 389 390 return (1); 391} 392 393int 394SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 395{ 396 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 397 ctx->internal->generate_session_id = cb; 398 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 399 return (1); 400} 401 402int 403SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 404{ 405 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 406 ssl->internal->generate_session_id = cb; 407 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 408 return (1); 409} 410 411int 412SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 413 unsigned int id_len) 414{ 415 /* 416 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 417 * shows how we can "construct" a session to give us the desired 418 * check - ie. to find if there's a session in the hash table 419 * that would conflict with any new session built out of this 420 * id/id_len and the ssl_version in use by this SSL. 421 */ 422 SSL_SESSION r, *p; 423 424 if (id_len > sizeof r.session_id) 425 return (0); 426 427 r.ssl_version = ssl->version; 428 r.session_id_length = id_len; 429 memcpy(r.session_id, id, id_len); 430 431 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 432 p = lh_SSL_SESSION_retrieve(ssl->ctx->internal->sessions, &r); 433 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 434 return (p != NULL); 435} 436 437int 438SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 439{ 440 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 441} 442 443int 444SSL_set_purpose(SSL *s, int purpose) 445{ 446 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 447} 448 449int 450SSL_CTX_set_trust(SSL_CTX *s, int trust) 451{ 452 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 453} 454 455int 456SSL_set_trust(SSL *s, int trust) 457{ 458 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 459} 460 461int 462SSL_set1_host(SSL *s, const char *hostname) 463{ 464 struct in_addr ina; 465 struct in6_addr in6a; 466 467 if (hostname != NULL && *hostname != '\0' && 468 (inet_pton(AF_INET, hostname, &ina) == 1 || 469 inet_pton(AF_INET6, hostname, &in6a) == 1)) 470 return X509_VERIFY_PARAM_set1_ip_asc(s->param, hostname); 471 else 472 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); 473} 474 475X509_VERIFY_PARAM * 476SSL_CTX_get0_param(SSL_CTX *ctx) 477{ 478 return (ctx->param); 479} 480 481int 482SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 483{ 484 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 485} 486 487X509_VERIFY_PARAM * 488SSL_get0_param(SSL *ssl) 489{ 490 return (ssl->param); 491} 492 493int 494SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 495{ 496 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 497} 498 499void 500SSL_free(SSL *s) 501{ 502 int i; 503 504 if (s == NULL) 505 return; 506 507 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 508 if (i > 0) 509 return; 510 511 X509_VERIFY_PARAM_free(s->param); 512 513 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 514 515 if (s->bbio != NULL) { 516 /* If the buffering BIO is in place, pop it off */ 517 if (s->bbio == s->wbio) { 518 s->wbio = BIO_pop(s->wbio); 519 } 520 BIO_free(s->bbio); 521 s->bbio = NULL; 522 } 523 524 if (s->rbio != s->wbio) 525 BIO_free_all(s->rbio); 526 BIO_free_all(s->wbio); 527 528 tls13_ctx_free(s->internal->tls13); 529 530 BUF_MEM_free(s->internal->init_buf); 531 532 /* add extra stuff */ 533 sk_SSL_CIPHER_free(s->cipher_list); 534 sk_SSL_CIPHER_free(s->internal->cipher_list_by_id); 535 536 /* Make the next call work :-) */ 537 if (s->session != NULL) { 538 ssl_clear_bad_session(s); 539 SSL_SESSION_free(s->session); 540 } 541 542 ssl_clear_cipher_state(s); 543 544 ssl_cert_free(s->cert); 545 546 free(s->tlsext_hostname); 547 SSL_CTX_free(s->initial_ctx); 548 549 free(s->internal->tlsext_ecpointformatlist); 550 free(s->internal->tlsext_supportedgroups); 551 552 sk_X509_EXTENSION_pop_free(s->internal->tlsext_ocsp_exts, 553 X509_EXTENSION_free); 554 sk_OCSP_RESPID_pop_free(s->internal->tlsext_ocsp_ids, OCSP_RESPID_free); 555 free(s->internal->tlsext_ocsp_resp); 556 557 sk_X509_NAME_pop_free(s->internal->client_CA, X509_NAME_free); 558 559 if (s->method != NULL) 560 s->method->internal->ssl_free(s); 561 562 SSL_CTX_free(s->ctx); 563 564 free(s->internal->alpn_client_proto_list); 565 566#ifndef OPENSSL_NO_SRTP 567 sk_SRTP_PROTECTION_PROFILE_free(s->internal->srtp_profiles); 568#endif 569 570 tls12_record_layer_free(s->internal->rl); 571 572 free(s->internal); 573 free(s); 574} 575 576int 577SSL_up_ref(SSL *s) 578{ 579 int refs = CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL); 580 return (refs > 1) ? 1 : 0; 581} 582 583void 584SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 585{ 586 /* If the output buffering BIO is still in place, remove it */ 587 if (s->bbio != NULL) { 588 if (s->wbio == s->bbio) { 589 s->wbio = s->wbio->next_bio; 590 s->bbio->next_bio = NULL; 591 } 592 } 593 594 if (s->rbio != rbio && s->rbio != s->wbio) 595 BIO_free_all(s->rbio); 596 if (s->wbio != wbio) 597 BIO_free_all(s->wbio); 598 s->rbio = rbio; 599 s->wbio = wbio; 600} 601 602BIO * 603SSL_get_rbio(const SSL *s) 604{ 605 return (s->rbio); 606} 607 608BIO * 609SSL_get_wbio(const SSL *s) 610{ 611 return (s->wbio); 612} 613 614int 615SSL_get_fd(const SSL *s) 616{ 617 return (SSL_get_rfd(s)); 618} 619 620int 621SSL_get_rfd(const SSL *s) 622{ 623 int ret = -1; 624 BIO *b, *r; 625 626 b = SSL_get_rbio(s); 627 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 628 if (r != NULL) 629 BIO_get_fd(r, &ret); 630 return (ret); 631} 632 633int 634SSL_get_wfd(const SSL *s) 635{ 636 int ret = -1; 637 BIO *b, *r; 638 639 b = SSL_get_wbio(s); 640 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 641 if (r != NULL) 642 BIO_get_fd(r, &ret); 643 return (ret); 644} 645 646int 647SSL_set_fd(SSL *s, int fd) 648{ 649 int ret = 0; 650 BIO *bio = NULL; 651 652 bio = BIO_new(BIO_s_socket()); 653 654 if (bio == NULL) { 655 SSLerror(s, ERR_R_BUF_LIB); 656 goto err; 657 } 658 BIO_set_fd(bio, fd, BIO_NOCLOSE); 659 SSL_set_bio(s, bio, bio); 660 ret = 1; 661err: 662 return (ret); 663} 664 665int 666SSL_set_wfd(SSL *s, int fd) 667{ 668 int ret = 0; 669 BIO *bio = NULL; 670 671 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 672 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 673 bio = BIO_new(BIO_s_socket()); 674 675 if (bio == NULL) { 676 SSLerror(s, ERR_R_BUF_LIB); 677 goto err; 678 } 679 BIO_set_fd(bio, fd, BIO_NOCLOSE); 680 SSL_set_bio(s, SSL_get_rbio(s), bio); 681 } else 682 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 683 ret = 1; 684err: 685 return (ret); 686} 687 688int 689SSL_set_rfd(SSL *s, int fd) 690{ 691 int ret = 0; 692 BIO *bio = NULL; 693 694 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 695 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 696 bio = BIO_new(BIO_s_socket()); 697 698 if (bio == NULL) { 699 SSLerror(s, ERR_R_BUF_LIB); 700 goto err; 701 } 702 BIO_set_fd(bio, fd, BIO_NOCLOSE); 703 SSL_set_bio(s, bio, SSL_get_wbio(s)); 704 } else 705 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 706 ret = 1; 707err: 708 return (ret); 709} 710 711 712/* return length of latest Finished message we sent, copy to 'buf' */ 713size_t 714SSL_get_finished(const SSL *s, void *buf, size_t count) 715{ 716 size_t ret; 717 718 ret = S3I(s)->tmp.finish_md_len; 719 if (count > ret) 720 count = ret; 721 memcpy(buf, S3I(s)->tmp.finish_md, count); 722 return (ret); 723} 724 725/* return length of latest Finished message we expected, copy to 'buf' */ 726size_t 727SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 728{ 729 size_t ret; 730 731 ret = S3I(s)->tmp.peer_finish_md_len; 732 if (count > ret) 733 count = ret; 734 memcpy(buf, S3I(s)->tmp.peer_finish_md, count); 735 return (ret); 736} 737 738 739int 740SSL_get_verify_mode(const SSL *s) 741{ 742 return (s->verify_mode); 743} 744 745int 746SSL_get_verify_depth(const SSL *s) 747{ 748 return (X509_VERIFY_PARAM_get_depth(s->param)); 749} 750 751int 752(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 753{ 754 return (s->internal->verify_callback); 755} 756 757int 758SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 759{ 760 return (ctx->verify_mode); 761} 762 763int 764SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 765{ 766 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 767} 768 769int 770(*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 771{ 772 return (ctx->internal->default_verify_callback); 773} 774 775void 776SSL_set_verify(SSL *s, int mode, 777 int (*callback)(int ok, X509_STORE_CTX *ctx)) 778{ 779 s->verify_mode = mode; 780 if (callback != NULL) 781 s->internal->verify_callback = callback; 782} 783 784void 785SSL_set_verify_depth(SSL *s, int depth) 786{ 787 X509_VERIFY_PARAM_set_depth(s->param, depth); 788} 789 790void 791SSL_set_read_ahead(SSL *s, int yes) 792{ 793 s->internal->read_ahead = yes; 794} 795 796int 797SSL_get_read_ahead(const SSL *s) 798{ 799 return (s->internal->read_ahead); 800} 801 802int 803SSL_pending(const SSL *s) 804{ 805 return (s->method->internal->ssl_pending(s)); 806} 807 808X509 * 809SSL_get_peer_certificate(const SSL *s) 810{ 811 X509 *r; 812 813 if ((s == NULL) || (s->session == NULL)) 814 r = NULL; 815 else 816 r = s->session->peer; 817 818 if (r == NULL) 819 return (r); 820 821 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509); 822 823 return (r); 824} 825 826STACK_OF(X509) * 827SSL_get_peer_cert_chain(const SSL *s) 828{ 829 STACK_OF(X509) *r; 830 831 if ((s == NULL) || (s->session == NULL) || 832 (SSI(s)->sess_cert == NULL)) 833 r = NULL; 834 else 835 r = SSI(s)->sess_cert->cert_chain; 836 837 /* 838 * If we are a client, cert_chain includes the peer's own 839 * certificate; 840 * if we are a server, it does not. 841 */ 842 return (r); 843} 844 845/* 846 * Now in theory, since the calling process own 't' it should be safe to 847 * modify. We need to be able to read f without being hassled 848 */ 849int 850SSL_copy_session_id(SSL *t, const SSL *f) 851{ 852 CERT *tmp; 853 854 /* Do we need to do SSL locking? */ 855 if (!SSL_set_session(t, SSL_get_session(f))) 856 return 0; 857 858 /* What if we are set up for one protocol but want to talk another? */ 859 if (t->method != f->method) { 860 t->method->internal->ssl_free(t); 861 t->method = f->method; 862 if (!t->method->internal->ssl_new(t)) 863 return 0; 864 } 865 866 tmp = t->cert; 867 if (f->cert != NULL) { 868 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 869 t->cert = f->cert; 870 } else 871 t->cert = NULL; 872 ssl_cert_free(tmp); 873 874 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) 875 return 0; 876 877 return 1; 878} 879 880/* Fix this so it checks all the valid key/cert options */ 881int 882SSL_CTX_check_private_key(const SSL_CTX *ctx) 883{ 884 if ((ctx == NULL) || (ctx->internal->cert == NULL) || 885 (ctx->internal->cert->key->x509 == NULL)) { 886 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED); 887 return (0); 888 } 889 if (ctx->internal->cert->key->privatekey == NULL) { 890 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED); 891 return (0); 892 } 893 return (X509_check_private_key(ctx->internal->cert->key->x509, 894 ctx->internal->cert->key->privatekey)); 895} 896 897/* Fix this function so that it takes an optional type parameter */ 898int 899SSL_check_private_key(const SSL *ssl) 900{ 901 if (ssl == NULL) { 902 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); 903 return (0); 904 } 905 if (ssl->cert == NULL) { 906 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 907 return (0); 908 } 909 if (ssl->cert->key->x509 == NULL) { 910 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 911 return (0); 912 } 913 if (ssl->cert->key->privatekey == NULL) { 914 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 915 return (0); 916 } 917 return (X509_check_private_key(ssl->cert->key->x509, 918 ssl->cert->key->privatekey)); 919} 920 921int 922SSL_accept(SSL *s) 923{ 924 if (s->internal->handshake_func == NULL) 925 SSL_set_accept_state(s); /* Not properly initialized yet */ 926 927 return (s->method->internal->ssl_accept(s)); 928} 929 930int 931SSL_connect(SSL *s) 932{ 933 if (s->internal->handshake_func == NULL) 934 SSL_set_connect_state(s); /* Not properly initialized yet */ 935 936 return (s->method->internal->ssl_connect(s)); 937} 938 939int 940SSL_is_server(const SSL *s) 941{ 942 return s->server; 943} 944 945static long 946ssl_get_default_timeout() 947{ 948 /* 949 * 2 hours, the 24 hours mentioned in the TLSv1 spec 950 * is way too long for http, the cache would over fill. 951 */ 952 return (2 * 60 * 60); 953} 954 955long 956SSL_get_default_timeout(const SSL *s) 957{ 958 return (ssl_get_default_timeout()); 959} 960 961int 962SSL_read(SSL *s, void *buf, int num) 963{ 964 if (s->internal->handshake_func == NULL) { 965 SSLerror(s, SSL_R_UNINITIALIZED); 966 return (-1); 967 } 968 969 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 970 s->internal->rwstate = SSL_NOTHING; 971 return (0); 972 } 973 return ssl3_read(s, buf, num); 974} 975 976int 977SSL_peek(SSL *s, void *buf, int num) 978{ 979 if (s->internal->handshake_func == NULL) { 980 SSLerror(s, SSL_R_UNINITIALIZED); 981 return (-1); 982 } 983 984 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 985 return (0); 986 } 987 return ssl3_peek(s, buf, num); 988} 989 990int 991SSL_write(SSL *s, const void *buf, int num) 992{ 993 if (s->internal->handshake_func == NULL) { 994 SSLerror(s, SSL_R_UNINITIALIZED); 995 return (-1); 996 } 997 998 if (s->internal->shutdown & SSL_SENT_SHUTDOWN) { 999 s->internal->rwstate = SSL_NOTHING; 1000 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 1001 return (-1); 1002 } 1003 return ssl3_write(s, buf, num); 1004} 1005 1006int 1007SSL_shutdown(SSL *s) 1008{ 1009 /* 1010 * Note that this function behaves differently from what one might 1011 * expect. Return values are 0 for no success (yet), 1012 * 1 for success; but calling it once is usually not enough, 1013 * even if blocking I/O is used (see ssl3_shutdown). 1014 */ 1015 1016 if (s->internal->handshake_func == NULL) { 1017 SSLerror(s, SSL_R_UNINITIALIZED); 1018 return (-1); 1019 } 1020 1021 if (s != NULL && !SSL_in_init(s)) 1022 return (s->method->internal->ssl_shutdown(s)); 1023 1024 return (1); 1025} 1026 1027int 1028SSL_renegotiate(SSL *s) 1029{ 1030 if (s->internal->renegotiate == 0) 1031 s->internal->renegotiate = 1; 1032 1033 s->internal->new_session = 1; 1034 1035 return (s->method->internal->ssl_renegotiate(s)); 1036} 1037 1038int 1039SSL_renegotiate_abbreviated(SSL *s) 1040{ 1041 if (s->internal->renegotiate == 0) 1042 s->internal->renegotiate = 1; 1043 1044 s->internal->new_session = 0; 1045 1046 return (s->method->internal->ssl_renegotiate(s)); 1047} 1048 1049int 1050SSL_renegotiate_pending(SSL *s) 1051{ 1052 /* 1053 * Becomes true when negotiation is requested; 1054 * false again once a handshake has finished. 1055 */ 1056 return (s->internal->renegotiate != 0); 1057} 1058 1059long 1060SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1061{ 1062 long l; 1063 1064 switch (cmd) { 1065 case SSL_CTRL_GET_READ_AHEAD: 1066 return (s->internal->read_ahead); 1067 case SSL_CTRL_SET_READ_AHEAD: 1068 l = s->internal->read_ahead; 1069 s->internal->read_ahead = larg; 1070 return (l); 1071 1072 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1073 s->internal->msg_callback_arg = parg; 1074 return (1); 1075 1076 case SSL_CTRL_OPTIONS: 1077 return (s->internal->options|=larg); 1078 case SSL_CTRL_CLEAR_OPTIONS: 1079 return (s->internal->options&=~larg); 1080 case SSL_CTRL_MODE: 1081 return (s->internal->mode|=larg); 1082 case SSL_CTRL_CLEAR_MODE: 1083 return (s->internal->mode &=~larg); 1084 case SSL_CTRL_GET_MAX_CERT_LIST: 1085 return (s->internal->max_cert_list); 1086 case SSL_CTRL_SET_MAX_CERT_LIST: 1087 l = s->internal->max_cert_list; 1088 s->internal->max_cert_list = larg; 1089 return (l); 1090 case SSL_CTRL_SET_MTU: 1091#ifndef OPENSSL_NO_DTLS1 1092 if (larg < (long)dtls1_min_mtu()) 1093 return (0); 1094#endif 1095 if (SSL_IS_DTLS(s)) { 1096 D1I(s)->mtu = larg; 1097 return (larg); 1098 } 1099 return (0); 1100 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1101 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1102 return (0); 1103 s->max_send_fragment = larg; 1104 return (1); 1105 case SSL_CTRL_GET_RI_SUPPORT: 1106 if (s->s3) 1107 return (S3I(s)->send_connection_binding); 1108 else return (0); 1109 default: 1110 if (SSL_IS_DTLS(s)) 1111 return dtls1_ctrl(s, cmd, larg, parg); 1112 return ssl3_ctrl(s, cmd, larg, parg); 1113 } 1114} 1115 1116long 1117SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1118{ 1119 switch (cmd) { 1120 case SSL_CTRL_SET_MSG_CALLBACK: 1121 s->internal->msg_callback = (void (*)(int write_p, int version, 1122 int content_type, const void *buf, size_t len, 1123 SSL *ssl, void *arg))(fp); 1124 return (1); 1125 1126 default: 1127 return (ssl3_callback_ctrl(s, cmd, fp)); 1128 } 1129} 1130 1131struct lhash_st_SSL_SESSION * 1132SSL_CTX_sessions(SSL_CTX *ctx) 1133{ 1134 return (ctx->internal->sessions); 1135} 1136 1137long 1138SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1139{ 1140 long l; 1141 1142 switch (cmd) { 1143 case SSL_CTRL_GET_READ_AHEAD: 1144 return (ctx->internal->read_ahead); 1145 case SSL_CTRL_SET_READ_AHEAD: 1146 l = ctx->internal->read_ahead; 1147 ctx->internal->read_ahead = larg; 1148 return (l); 1149 1150 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1151 ctx->internal->msg_callback_arg = parg; 1152 return (1); 1153 1154 case SSL_CTRL_GET_MAX_CERT_LIST: 1155 return (ctx->internal->max_cert_list); 1156 case SSL_CTRL_SET_MAX_CERT_LIST: 1157 l = ctx->internal->max_cert_list; 1158 ctx->internal->max_cert_list = larg; 1159 return (l); 1160 1161 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1162 l = ctx->internal->session_cache_size; 1163 ctx->internal->session_cache_size = larg; 1164 return (l); 1165 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1166 return (ctx->internal->session_cache_size); 1167 case SSL_CTRL_SET_SESS_CACHE_MODE: 1168 l = ctx->internal->session_cache_mode; 1169 ctx->internal->session_cache_mode = larg; 1170 return (l); 1171 case SSL_CTRL_GET_SESS_CACHE_MODE: 1172 return (ctx->internal->session_cache_mode); 1173 1174 case SSL_CTRL_SESS_NUMBER: 1175 return (lh_SSL_SESSION_num_items(ctx->internal->sessions)); 1176 case SSL_CTRL_SESS_CONNECT: 1177 return (ctx->internal->stats.sess_connect); 1178 case SSL_CTRL_SESS_CONNECT_GOOD: 1179 return (ctx->internal->stats.sess_connect_good); 1180 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1181 return (ctx->internal->stats.sess_connect_renegotiate); 1182 case SSL_CTRL_SESS_ACCEPT: 1183 return (ctx->internal->stats.sess_accept); 1184 case SSL_CTRL_SESS_ACCEPT_GOOD: 1185 return (ctx->internal->stats.sess_accept_good); 1186 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1187 return (ctx->internal->stats.sess_accept_renegotiate); 1188 case SSL_CTRL_SESS_HIT: 1189 return (ctx->internal->stats.sess_hit); 1190 case SSL_CTRL_SESS_CB_HIT: 1191 return (ctx->internal->stats.sess_cb_hit); 1192 case SSL_CTRL_SESS_MISSES: 1193 return (ctx->internal->stats.sess_miss); 1194 case SSL_CTRL_SESS_TIMEOUTS: 1195 return (ctx->internal->stats.sess_timeout); 1196 case SSL_CTRL_SESS_CACHE_FULL: 1197 return (ctx->internal->stats.sess_cache_full); 1198 case SSL_CTRL_OPTIONS: 1199 return (ctx->internal->options|=larg); 1200 case SSL_CTRL_CLEAR_OPTIONS: 1201 return (ctx->internal->options&=~larg); 1202 case SSL_CTRL_MODE: 1203 return (ctx->internal->mode|=larg); 1204 case SSL_CTRL_CLEAR_MODE: 1205 return (ctx->internal->mode&=~larg); 1206 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1207 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1208 return (0); 1209 ctx->internal->max_send_fragment = larg; 1210 return (1); 1211 default: 1212 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1213 } 1214} 1215 1216long 1217SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1218{ 1219 switch (cmd) { 1220 case SSL_CTRL_SET_MSG_CALLBACK: 1221 ctx->internal->msg_callback = (void (*)(int write_p, int version, 1222 int content_type, const void *buf, size_t len, SSL *ssl, 1223 void *arg))(fp); 1224 return (1); 1225 1226 default: 1227 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1228 } 1229} 1230 1231int 1232ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1233{ 1234 long l; 1235 1236 l = a->id - b->id; 1237 if (l == 0L) 1238 return (0); 1239 else 1240 return ((l > 0) ? 1:-1); 1241} 1242 1243int 1244ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1245 const SSL_CIPHER * const *bp) 1246{ 1247 long l; 1248 1249 l = (*ap)->id - (*bp)->id; 1250 if (l == 0L) 1251 return (0); 1252 else 1253 return ((l > 0) ? 1:-1); 1254} 1255 1256STACK_OF(SSL_CIPHER) * 1257SSL_get_ciphers(const SSL *s) 1258{ 1259 if (s == NULL) 1260 return (NULL); 1261 if (s->cipher_list != NULL) 1262 return (s->cipher_list); 1263 1264 return (s->ctx->cipher_list); 1265} 1266 1267STACK_OF(SSL_CIPHER) * 1268SSL_get_client_ciphers(const SSL *s) 1269{ 1270 if (s == NULL || s->session == NULL || !s->server) 1271 return NULL; 1272 return s->session->ciphers; 1273} 1274 1275STACK_OF(SSL_CIPHER) * 1276SSL_get1_supported_ciphers(SSL *s) 1277{ 1278 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers; 1279 const SSL_CIPHER *cipher; 1280 uint16_t min_vers, max_vers; 1281 int i; 1282 1283 if (s == NULL) 1284 return NULL; 1285 if (!ssl_supported_version_range(s, &min_vers, &max_vers)) 1286 return NULL; 1287 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1288 return NULL; 1289 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL) 1290 return NULL; 1291 1292 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1293 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL) 1294 goto err; 1295 if (!ssl_cipher_allowed_in_version_range(cipher, min_vers, 1296 max_vers)) 1297 continue; 1298 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher)) 1299 goto err; 1300 } 1301 1302 if (sk_SSL_CIPHER_num(supported_ciphers) > 0) 1303 return supported_ciphers; 1304 1305 err: 1306 sk_SSL_CIPHER_free(supported_ciphers); 1307 return NULL; 1308} 1309 1310/* 1311 * Return a STACK of the ciphers available for the SSL and in order of 1312 * algorithm id. 1313 */ 1314STACK_OF(SSL_CIPHER) * 1315ssl_get_ciphers_by_id(SSL *s) 1316{ 1317 if (s != NULL) { 1318 if (s->internal->cipher_list_by_id != NULL) { 1319 return (s->internal->cipher_list_by_id); 1320 } else if ((s->ctx != NULL) && 1321 (s->ctx->internal->cipher_list_by_id != NULL)) { 1322 return (s->ctx->internal->cipher_list_by_id); 1323 } 1324 } 1325 return (NULL); 1326} 1327 1328/* See if we have any ECC cipher suites. */ 1329int 1330ssl_has_ecc_ciphers(SSL *s) 1331{ 1332 STACK_OF(SSL_CIPHER) *ciphers; 1333 unsigned long alg_k, alg_a; 1334 SSL_CIPHER *cipher; 1335 int i; 1336 1337 if (s->version == DTLS1_VERSION) 1338 return 0; 1339 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1340 return 0; 1341 1342 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1343 cipher = sk_SSL_CIPHER_value(ciphers, i); 1344 1345 alg_k = cipher->algorithm_mkey; 1346 alg_a = cipher->algorithm_auth; 1347 1348 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1349 return 1; 1350 } 1351 1352 return 0; 1353} 1354 1355/* The old interface to get the same thing as SSL_get_ciphers(). */ 1356const char * 1357SSL_get_cipher_list(const SSL *s, int n) 1358{ 1359 STACK_OF(SSL_CIPHER) *ciphers; 1360 const SSL_CIPHER *cipher; 1361 1362 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1363 return (NULL); 1364 if ((cipher = sk_SSL_CIPHER_value(ciphers, n)) == NULL) 1365 return (NULL); 1366 1367 return (cipher->name); 1368} 1369 1370STACK_OF(SSL_CIPHER) * 1371SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1372{ 1373 return ctx->cipher_list; 1374} 1375 1376/* Specify the ciphers to be used by default by the SSL_CTX. */ 1377int 1378SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1379{ 1380 STACK_OF(SSL_CIPHER) *ciphers; 1381 1382 /* 1383 * ssl_create_cipher_list may return an empty stack if it was unable to 1384 * find a cipher matching the given rule string (for example if the 1385 * rule string specifies a cipher which has been disabled). This is not 1386 * an error as far as ssl_create_cipher_list is concerned, and hence 1387 * ctx->cipher_list and ctx->internal->cipher_list_by_id has been 1388 * updated. 1389 */ 1390 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1391 &ctx->internal->cipher_list_by_id, str); 1392 if (ciphers == NULL) { 1393 return (0); 1394 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1395 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1396 return (0); 1397 } 1398 return (1); 1399} 1400 1401/* Specify the ciphers to be used by the SSL. */ 1402int 1403SSL_set_cipher_list(SSL *s, const char *str) 1404{ 1405 STACK_OF(SSL_CIPHER) *ciphers; 1406 1407 /* See comment in SSL_CTX_set_cipher_list. */ 1408 ciphers = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1409 &s->internal->cipher_list_by_id, str); 1410 if (ciphers == NULL) { 1411 return (0); 1412 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1413 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1414 return (0); 1415 } 1416 return (1); 1417} 1418 1419char * 1420SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1421{ 1422 STACK_OF(SSL_CIPHER) *ciphers; 1423 const SSL_CIPHER *cipher; 1424 size_t curlen = 0; 1425 char *end; 1426 int i; 1427 1428 if (s->session == NULL || s->session->ciphers == NULL || len < 2) 1429 return (NULL); 1430 1431 ciphers = s->session->ciphers; 1432 if (sk_SSL_CIPHER_num(ciphers) == 0) 1433 return (NULL); 1434 1435 buf[0] = '\0'; 1436 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1437 cipher = sk_SSL_CIPHER_value(ciphers, i); 1438 end = buf + curlen; 1439 if (strlcat(buf, cipher->name, len) >= len || 1440 (curlen = strlcat(buf, ":", len)) >= len) { 1441 /* remove truncated cipher from list */ 1442 *end = '\0'; 1443 break; 1444 } 1445 } 1446 /* remove trailing colon */ 1447 if ((end = strrchr(buf, ':')) != NULL) 1448 *end = '\0'; 1449 return (buf); 1450} 1451 1452/* 1453 * Return a servername extension value if provided in Client Hello, or NULL. 1454 * So far, only host_name types are defined (RFC 3546). 1455 */ 1456const char * 1457SSL_get_servername(const SSL *s, const int type) 1458{ 1459 if (type != TLSEXT_NAMETYPE_host_name) 1460 return (NULL); 1461 1462 return (s->session && !s->tlsext_hostname ? 1463 s->session->tlsext_hostname : 1464 s->tlsext_hostname); 1465} 1466 1467int 1468SSL_get_servername_type(const SSL *s) 1469{ 1470 if (s->session && 1471 (!s->tlsext_hostname ? 1472 s->session->tlsext_hostname : s->tlsext_hostname)) 1473 return (TLSEXT_NAMETYPE_host_name); 1474 return (-1); 1475} 1476 1477/* 1478 * SSL_select_next_proto implements standard protocol selection. It is 1479 * expected that this function is called from the callback set by 1480 * SSL_CTX_set_alpn_select_cb. 1481 * 1482 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1483 * strings. The length byte itself is not included in the length. A byte 1484 * string of length 0 is invalid. No byte string may be truncated. 1485 * 1486 * It returns either: 1487 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1488 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1489 */ 1490int 1491SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1492 const unsigned char *server, unsigned int server_len, 1493 const unsigned char *client, unsigned int client_len) 1494{ 1495 unsigned int i, j; 1496 const unsigned char *result; 1497 int status = OPENSSL_NPN_UNSUPPORTED; 1498 1499 /* 1500 * For each protocol in server preference order, 1501 * see if we support it. 1502 */ 1503 for (i = 0; i < server_len; ) { 1504 for (j = 0; j < client_len; ) { 1505 if (server[i] == client[j] && 1506 memcmp(&server[i + 1], 1507 &client[j + 1], server[i]) == 0) { 1508 /* We found a match */ 1509 result = &server[i]; 1510 status = OPENSSL_NPN_NEGOTIATED; 1511 goto found; 1512 } 1513 j += client[j]; 1514 j++; 1515 } 1516 i += server[i]; 1517 i++; 1518 } 1519 1520 /* There's no overlap between our protocols and the server's list. */ 1521 result = client; 1522 status = OPENSSL_NPN_NO_OVERLAP; 1523 1524found: 1525 *out = (unsigned char *) result + 1; 1526 *outlen = result[0]; 1527 return (status); 1528} 1529 1530/* SSL_get0_next_proto_negotiated is deprecated. */ 1531void 1532SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1533 unsigned int *len) 1534{ 1535 *data = NULL; 1536 *len = 0; 1537} 1538 1539/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1540void 1541SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1542 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1543{ 1544} 1545 1546/* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1547void 1548SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1549 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1550 unsigned int inlen, void *arg), void *arg) 1551{ 1552} 1553 1554/* 1555 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1556 * protocols, which must be in wire-format (i.e. a series of non-empty, 1557 * 8-bit length-prefixed strings). Returns 0 on success. 1558 */ 1559int 1560SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1561 unsigned int protos_len) 1562{ 1563 int failed = 1; 1564 1565 if (protos == NULL || protos_len == 0) 1566 goto err; 1567 1568 free(ctx->internal->alpn_client_proto_list); 1569 ctx->internal->alpn_client_proto_list = NULL; 1570 ctx->internal->alpn_client_proto_list_len = 0; 1571 1572 if ((ctx->internal->alpn_client_proto_list = malloc(protos_len)) 1573 == NULL) 1574 goto err; 1575 ctx->internal->alpn_client_proto_list_len = protos_len; 1576 1577 memcpy(ctx->internal->alpn_client_proto_list, protos, protos_len); 1578 1579 failed = 0; 1580 1581 err: 1582 /* NOTE: Return values are the reverse of what you expect. */ 1583 return (failed); 1584} 1585 1586/* 1587 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1588 * protocols, which must be in wire-format (i.e. a series of non-empty, 1589 * 8-bit length-prefixed strings). Returns 0 on success. 1590 */ 1591int 1592SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1593 unsigned int protos_len) 1594{ 1595 int failed = 1; 1596 1597 if (protos == NULL || protos_len == 0) 1598 goto err; 1599 1600 free(ssl->internal->alpn_client_proto_list); 1601 ssl->internal->alpn_client_proto_list = NULL; 1602 ssl->internal->alpn_client_proto_list_len = 0; 1603 1604 if ((ssl->internal->alpn_client_proto_list = malloc(protos_len)) 1605 == NULL) 1606 goto err; 1607 ssl->internal->alpn_client_proto_list_len = protos_len; 1608 1609 memcpy(ssl->internal->alpn_client_proto_list, protos, protos_len); 1610 1611 failed = 0; 1612 1613 err: 1614 /* NOTE: Return values are the reverse of what you expect. */ 1615 return (failed); 1616} 1617 1618/* 1619 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1620 * ClientHello processing in order to select an ALPN protocol from the 1621 * client's list of offered protocols. 1622 */ 1623void 1624SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1625 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1626 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1627{ 1628 ctx->internal->alpn_select_cb = cb; 1629 ctx->internal->alpn_select_cb_arg = arg; 1630} 1631 1632/* 1633 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1634 * it sets data to point to len bytes of protocol name (not including the 1635 * leading length-prefix byte). If the server didn't respond with* a negotiated 1636 * protocol then len will be zero. 1637 */ 1638void 1639SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1640 unsigned int *len) 1641{ 1642 *data = NULL; 1643 *len = 0; 1644 1645 *data = ssl->s3->internal->alpn_selected; 1646 *len = ssl->s3->internal->alpn_selected_len; 1647} 1648 1649int 1650SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1651 const char *label, size_t llen, const unsigned char *p, size_t plen, 1652 int use_context) 1653{ 1654 return (tls1_export_keying_material(s, out, olen, 1655 label, llen, p, plen, use_context)); 1656} 1657 1658static unsigned long 1659ssl_session_hash(const SSL_SESSION *a) 1660{ 1661 unsigned long l; 1662 1663 l = (unsigned long) 1664 ((unsigned int) a->session_id[0] )| 1665 ((unsigned int) a->session_id[1]<< 8L)| 1666 ((unsigned long)a->session_id[2]<<16L)| 1667 ((unsigned long)a->session_id[3]<<24L); 1668 return (l); 1669} 1670 1671/* 1672 * NB: If this function (or indeed the hash function which uses a sort of 1673 * coarser function than this one) is changed, ensure 1674 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1675 * able to construct an SSL_SESSION that will collide with any existing session 1676 * with a matching session ID. 1677 */ 1678static int 1679ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 1680{ 1681 if (a->ssl_version != b->ssl_version) 1682 return (1); 1683 if (a->session_id_length != b->session_id_length) 1684 return (1); 1685 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 1686 return (1); 1687 return (0); 1688} 1689 1690/* 1691 * These wrapper functions should remain rather than redeclaring 1692 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1693 * variable. The reason is that the functions aren't static, they're exposed via 1694 * ssl.h. 1695 */ 1696static unsigned long 1697ssl_session_LHASH_HASH(const void *arg) 1698{ 1699 const SSL_SESSION *a = arg; 1700 1701 return ssl_session_hash(a); 1702} 1703 1704static int 1705ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 1706{ 1707 const SSL_SESSION *a = arg1; 1708 const SSL_SESSION *b = arg2; 1709 1710 return ssl_session_cmp(a, b); 1711} 1712 1713SSL_CTX * 1714SSL_CTX_new(const SSL_METHOD *meth) 1715{ 1716 SSL_CTX *ret; 1717 1718 if (!OPENSSL_init_ssl(0, NULL)) { 1719 SSLerrorx(SSL_R_LIBRARY_BUG); 1720 return (NULL); 1721 } 1722 1723 if (meth == NULL) { 1724 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 1725 return (NULL); 1726 } 1727 1728 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 1729 SSLerrorx(ERR_R_MALLOC_FAILURE); 1730 return (NULL); 1731 } 1732 if ((ret->internal = calloc(1, sizeof(*ret->internal))) == NULL) { 1733 free(ret); 1734 SSLerrorx(ERR_R_MALLOC_FAILURE); 1735 return (NULL); 1736 } 1737 1738 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 1739 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1740 goto err; 1741 } 1742 1743 ret->method = meth; 1744 ret->internal->min_version = meth->internal->min_version; 1745 ret->internal->max_version = meth->internal->max_version; 1746 ret->internal->mode = SSL_MODE_AUTO_RETRY; 1747 1748 ret->cert_store = NULL; 1749 ret->internal->session_cache_mode = SSL_SESS_CACHE_SERVER; 1750 ret->internal->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1751 ret->internal->session_cache_head = NULL; 1752 ret->internal->session_cache_tail = NULL; 1753 1754 /* We take the system default */ 1755 ret->session_timeout = ssl_get_default_timeout(); 1756 1757 ret->internal->new_session_cb = 0; 1758 ret->internal->remove_session_cb = 0; 1759 ret->internal->get_session_cb = 0; 1760 ret->internal->generate_session_id = 0; 1761 1762 memset((char *)&ret->internal->stats, 0, sizeof(ret->internal->stats)); 1763 1764 ret->references = 1; 1765 ret->internal->quiet_shutdown = 0; 1766 1767 ret->internal->info_callback = NULL; 1768 1769 ret->internal->app_verify_callback = 0; 1770 ret->internal->app_verify_arg = NULL; 1771 1772 ret->internal->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 1773 ret->internal->read_ahead = 0; 1774 ret->internal->msg_callback = 0; 1775 ret->internal->msg_callback_arg = NULL; 1776 ret->verify_mode = SSL_VERIFY_NONE; 1777 ret->sid_ctx_length = 0; 1778 ret->internal->default_verify_callback = NULL; 1779 1780 if ((ret->internal->cert = ssl_cert_new()) == NULL) 1781 goto err; 1782 1783 ret->default_passwd_callback = 0; 1784 ret->default_passwd_callback_userdata = NULL; 1785 ret->internal->client_cert_cb = 0; 1786 ret->internal->app_gen_cookie_cb = 0; 1787 ret->internal->app_verify_cookie_cb = 0; 1788 1789 ret->internal->sessions = lh_SSL_SESSION_new(); 1790 if (ret->internal->sessions == NULL) 1791 goto err; 1792 ret->cert_store = X509_STORE_new(); 1793 if (ret->cert_store == NULL) 1794 goto err; 1795 1796 ssl_create_cipher_list(ret->method, &ret->cipher_list, 1797 &ret->internal->cipher_list_by_id, SSL_DEFAULT_CIPHER_LIST); 1798 if (ret->cipher_list == NULL || 1799 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 1800 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 1801 goto err2; 1802 } 1803 1804 ret->param = X509_VERIFY_PARAM_new(); 1805 if (!ret->param) 1806 goto err; 1807 1808 if ((ret->internal->client_CA = sk_X509_NAME_new_null()) == NULL) 1809 goto err; 1810 1811 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->internal->ex_data); 1812 1813 ret->extra_certs = NULL; 1814 1815 ret->internal->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 1816 1817 ret->internal->tlsext_servername_callback = 0; 1818 ret->internal->tlsext_servername_arg = NULL; 1819 1820 /* Setup RFC4507 ticket keys */ 1821 arc4random_buf(ret->internal->tlsext_tick_key_name, 16); 1822 arc4random_buf(ret->internal->tlsext_tick_hmac_key, 16); 1823 arc4random_buf(ret->internal->tlsext_tick_aes_key, 16); 1824 1825 ret->internal->tlsext_status_cb = 0; 1826 ret->internal->tlsext_status_arg = NULL; 1827 1828#ifndef OPENSSL_NO_ENGINE 1829 ret->internal->client_cert_engine = NULL; 1830#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1831#define eng_strx(x) #x 1832#define eng_str(x) eng_strx(x) 1833 /* Use specific client engine automatically... ignore errors */ 1834 { 1835 ENGINE *eng; 1836 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1837 if (!eng) { 1838 ERR_clear_error(); 1839 ENGINE_load_builtin_engines(); 1840 eng = ENGINE_by_id(eng_str( 1841 OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1842 } 1843 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1844 ERR_clear_error(); 1845 } 1846#endif 1847#endif 1848 /* 1849 * Default is to connect to non-RI servers. When RI is more widely 1850 * deployed might change this. 1851 */ 1852 ret->internal->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1853 1854 return (ret); 1855err: 1856 SSLerrorx(ERR_R_MALLOC_FAILURE); 1857err2: 1858 SSL_CTX_free(ret); 1859 return (NULL); 1860} 1861 1862void 1863SSL_CTX_free(SSL_CTX *ctx) 1864{ 1865 int i; 1866 1867 if (ctx == NULL) 1868 return; 1869 1870 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 1871 if (i > 0) 1872 return; 1873 1874 X509_VERIFY_PARAM_free(ctx->param); 1875 1876 /* 1877 * Free internal session cache. However: the remove_cb() may reference 1878 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1879 * after the sessions were flushed. 1880 * As the ex_data handling routines might also touch the session cache, 1881 * the most secure solution seems to be: empty (flush) the cache, then 1882 * free ex_data, then finally free the cache. 1883 * (See ticket [openssl.org #212].) 1884 */ 1885 if (ctx->internal->sessions != NULL) 1886 SSL_CTX_flush_sessions(ctx, 0); 1887 1888 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->internal->ex_data); 1889 1890 lh_SSL_SESSION_free(ctx->internal->sessions); 1891 1892 X509_STORE_free(ctx->cert_store); 1893 sk_SSL_CIPHER_free(ctx->cipher_list); 1894 sk_SSL_CIPHER_free(ctx->internal->cipher_list_by_id); 1895 ssl_cert_free(ctx->internal->cert); 1896 sk_X509_NAME_pop_free(ctx->internal->client_CA, X509_NAME_free); 1897 sk_X509_pop_free(ctx->extra_certs, X509_free); 1898 1899#ifndef OPENSSL_NO_SRTP 1900 if (ctx->internal->srtp_profiles) 1901 sk_SRTP_PROTECTION_PROFILE_free(ctx->internal->srtp_profiles); 1902#endif 1903 1904#ifndef OPENSSL_NO_ENGINE 1905 ENGINE_finish(ctx->internal->client_cert_engine); 1906#endif 1907 1908 free(ctx->internal->tlsext_ecpointformatlist); 1909 free(ctx->internal->tlsext_supportedgroups); 1910 1911 free(ctx->internal->alpn_client_proto_list); 1912 1913 free(ctx->internal); 1914 free(ctx); 1915} 1916 1917int 1918SSL_CTX_up_ref(SSL_CTX *ctx) 1919{ 1920 int refs = CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 1921 return ((refs > 1) ? 1 : 0); 1922} 1923 1924pem_password_cb * 1925SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 1926{ 1927 return (ctx->default_passwd_callback); 1928} 1929 1930void 1931SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1932{ 1933 ctx->default_passwd_callback = cb; 1934} 1935 1936void * 1937SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 1938{ 1939 return ctx->default_passwd_callback_userdata; 1940} 1941 1942void 1943SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 1944{ 1945 ctx->default_passwd_callback_userdata = u; 1946} 1947 1948void 1949SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, 1950 int (*cb)(X509_STORE_CTX *, void *), void *arg) 1951{ 1952 ctx->internal->app_verify_callback = cb; 1953 ctx->internal->app_verify_arg = arg; 1954} 1955 1956void 1957SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 1958{ 1959 ctx->verify_mode = mode; 1960 ctx->internal->default_verify_callback = cb; 1961} 1962 1963void 1964SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 1965{ 1966 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1967} 1968 1969static int 1970ssl_cert_can_sign(X509 *x) 1971{ 1972 /* This call populates extension flags (ex_flags). */ 1973 X509_check_purpose(x, -1, 0); 1974 1975 /* Key usage, if present, must allow signing. */ 1976 return ((x->ex_flags & EXFLAG_KUSAGE) == 0 || 1977 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)); 1978} 1979 1980void 1981ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) 1982{ 1983 unsigned long mask_a, mask_k; 1984 CERT_PKEY *cpk; 1985 1986 if (c == NULL) 1987 return; 1988 1989 mask_a = SSL_aNULL | SSL_aTLS1_3; 1990 mask_k = SSL_kECDHE | SSL_kTLS1_3; 1991 1992 if (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto != 0) 1993 mask_k |= SSL_kDHE; 1994 1995 cpk = &(c->pkeys[SSL_PKEY_ECC]); 1996 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 1997 if (ssl_cert_can_sign(cpk->x509)) 1998 mask_a |= SSL_aECDSA; 1999 } 2000 2001 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 2002 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2003 mask_k |= SSL_kGOST; 2004 mask_a |= SSL_aGOST01; 2005 } 2006 2007 cpk = &(c->pkeys[SSL_PKEY_RSA]); 2008 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2009 mask_a |= SSL_aRSA; 2010 mask_k |= SSL_kRSA; 2011 } 2012 2013 c->mask_k = mask_k; 2014 c->mask_a = mask_a; 2015 c->valid = 1; 2016} 2017 2018/* See if this handshake is using an ECC cipher suite. */ 2019int 2020ssl_using_ecc_cipher(SSL *s) 2021{ 2022 unsigned long alg_a, alg_k; 2023 2024 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 2025 alg_k = S3I(s)->hs.new_cipher->algorithm_mkey; 2026 2027 return SSI(s)->tlsext_ecpointformatlist != NULL && 2028 SSI(s)->tlsext_ecpointformatlist_length > 0 && 2029 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 2030} 2031 2032int 2033ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) 2034{ 2035 const SSL_CIPHER *cs = S3I(s)->hs.new_cipher; 2036 unsigned long alg_a; 2037 2038 alg_a = cs->algorithm_auth; 2039 2040 if (alg_a & SSL_aECDSA) { 2041 /* This call populates extension flags (ex_flags). */ 2042 X509_check_purpose(x, -1, 0); 2043 2044 /* Key usage, if present, must allow signing. */ 2045 if ((x->ex_flags & EXFLAG_KUSAGE) && 2046 ((x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) == 0)) { 2047 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2048 return (0); 2049 } 2050 } 2051 2052 return (1); 2053} 2054 2055CERT_PKEY * 2056ssl_get_server_send_pkey(const SSL *s) 2057{ 2058 unsigned long alg_a; 2059 CERT *c; 2060 int i; 2061 2062 c = s->cert; 2063 ssl_set_cert_masks(c, S3I(s)->hs.new_cipher); 2064 2065 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 2066 2067 if (alg_a & SSL_aECDSA) { 2068 i = SSL_PKEY_ECC; 2069 } else if (alg_a & SSL_aRSA) { 2070 i = SSL_PKEY_RSA; 2071 } else if (alg_a & SSL_aGOST01) { 2072 i = SSL_PKEY_GOST01; 2073 } else { /* if (alg_a & SSL_aNULL) */ 2074 SSLerror(s, ERR_R_INTERNAL_ERROR); 2075 return (NULL); 2076 } 2077 2078 return (c->pkeys + i); 2079} 2080 2081EVP_PKEY * 2082ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2083 const struct ssl_sigalg **sap) 2084{ 2085 const struct ssl_sigalg *sigalg = NULL; 2086 EVP_PKEY *pkey = NULL; 2087 unsigned long alg_a; 2088 CERT *c; 2089 int idx = -1; 2090 2091 alg_a = cipher->algorithm_auth; 2092 c = s->cert; 2093 2094 if (alg_a & SSL_aRSA) { 2095 idx = SSL_PKEY_RSA; 2096 } else if ((alg_a & SSL_aECDSA) && 2097 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2098 idx = SSL_PKEY_ECC; 2099 if (idx == -1) { 2100 SSLerror(s, ERR_R_INTERNAL_ERROR); 2101 return (NULL); 2102 } 2103 2104 pkey = c->pkeys[idx].privatekey; 2105 if ((sigalg = ssl_sigalg_select(s, pkey)) == NULL) { 2106 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2107 return (NULL); 2108 } 2109 *pmd = sigalg->md(); 2110 *sap = sigalg; 2111 2112 return (pkey); 2113} 2114 2115DH * 2116ssl_get_auto_dh(SSL *s) 2117{ 2118 CERT_PKEY *cpk; 2119 int keylen; 2120 DH *dhp; 2121 2122 if (s->cert->dh_tmp_auto == 2) { 2123 keylen = 1024; 2124 } else if (S3I(s)->hs.new_cipher->algorithm_auth & SSL_aNULL) { 2125 keylen = 1024; 2126 if (S3I(s)->hs.new_cipher->strength_bits == 256) 2127 keylen = 3072; 2128 } else { 2129 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2130 return (NULL); 2131 if (cpk->privatekey == NULL || cpk->privatekey->pkey.dh == NULL) 2132 return (NULL); 2133 keylen = EVP_PKEY_bits(cpk->privatekey); 2134 } 2135 2136 if ((dhp = DH_new()) == NULL) 2137 return (NULL); 2138 2139 dhp->g = BN_new(); 2140 if (dhp->g != NULL) 2141 BN_set_word(dhp->g, 2); 2142 2143 if (keylen >= 8192) 2144 dhp->p = get_rfc3526_prime_8192(NULL); 2145 else if (keylen >= 4096) 2146 dhp->p = get_rfc3526_prime_4096(NULL); 2147 else if (keylen >= 3072) 2148 dhp->p = get_rfc3526_prime_3072(NULL); 2149 else if (keylen >= 2048) 2150 dhp->p = get_rfc3526_prime_2048(NULL); 2151 else if (keylen >= 1536) 2152 dhp->p = get_rfc3526_prime_1536(NULL); 2153 else 2154 dhp->p = get_rfc2409_prime_1024(NULL); 2155 2156 if (dhp->p == NULL || dhp->g == NULL) { 2157 DH_free(dhp); 2158 return (NULL); 2159 } 2160 return (dhp); 2161} 2162 2163void 2164ssl_update_cache(SSL *s, int mode) 2165{ 2166 int i; 2167 2168 /* 2169 * If the session_id_length is 0, we are not supposed to cache it, 2170 * and it would be rather hard to do anyway :-) 2171 */ 2172 if (s->session->session_id_length == 0) 2173 return; 2174 2175 i = s->session_ctx->internal->session_cache_mode; 2176 if ((i & mode) && (!s->internal->hit) && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2177 || SSL_CTX_add_session(s->session_ctx, s->session)) 2178 && (s->session_ctx->internal->new_session_cb != NULL)) { 2179 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2180 if (!s->session_ctx->internal->new_session_cb(s, s->session)) 2181 SSL_SESSION_free(s->session); 2182 } 2183 2184 /* auto flush every 255 connections */ 2185 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2186 ((i & mode) == mode)) { 2187 if ((((mode & SSL_SESS_CACHE_CLIENT) ? 2188 s->session_ctx->internal->stats.sess_connect_good : 2189 s->session_ctx->internal->stats.sess_accept_good) & 0xff) == 0xff) { 2190 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2191 } 2192 } 2193} 2194 2195const SSL_METHOD * 2196SSL_get_ssl_method(SSL *s) 2197{ 2198 return (s->method); 2199} 2200 2201int 2202SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) 2203{ 2204 int conn = -1; 2205 int ret = 1; 2206 2207 if (s->method != meth) { 2208 if (s->internal->handshake_func != NULL) 2209 conn = (s->internal->handshake_func == s->method->internal->ssl_connect); 2210 2211 if (s->method->internal->version == meth->internal->version) 2212 s->method = meth; 2213 else { 2214 s->method->internal->ssl_free(s); 2215 s->method = meth; 2216 ret = s->method->internal->ssl_new(s); 2217 } 2218 2219 if (conn == 1) 2220 s->internal->handshake_func = meth->internal->ssl_connect; 2221 else if (conn == 0) 2222 s->internal->handshake_func = meth->internal->ssl_accept; 2223 } 2224 return (ret); 2225} 2226 2227int 2228SSL_get_error(const SSL *s, int i) 2229{ 2230 int reason; 2231 unsigned long l; 2232 BIO *bio; 2233 2234 if (i > 0) 2235 return (SSL_ERROR_NONE); 2236 2237 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2238 * etc, where we do encode the error */ 2239 if ((l = ERR_peek_error()) != 0) { 2240 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2241 return (SSL_ERROR_SYSCALL); 2242 else 2243 return (SSL_ERROR_SSL); 2244 } 2245 2246 if ((i < 0) && SSL_want_read(s)) { 2247 bio = SSL_get_rbio(s); 2248 if (BIO_should_read(bio)) { 2249 return (SSL_ERROR_WANT_READ); 2250 } else if (BIO_should_write(bio)) { 2251 /* 2252 * This one doesn't make too much sense... We never 2253 * try to write to the rbio, and an application 2254 * program where rbio and wbio are separate couldn't 2255 * even know what it should wait for. However if we 2256 * ever set s->internal->rwstate incorrectly (so that we have 2257 * SSL_want_read(s) instead of SSL_want_write(s)) 2258 * and rbio and wbio *are* the same, this test works 2259 * around that bug; so it might be safer to keep it. 2260 */ 2261 return (SSL_ERROR_WANT_WRITE); 2262 } else if (BIO_should_io_special(bio)) { 2263 reason = BIO_get_retry_reason(bio); 2264 if (reason == BIO_RR_CONNECT) 2265 return (SSL_ERROR_WANT_CONNECT); 2266 else if (reason == BIO_RR_ACCEPT) 2267 return (SSL_ERROR_WANT_ACCEPT); 2268 else 2269 return (SSL_ERROR_SYSCALL); /* unknown */ 2270 } 2271 } 2272 2273 if ((i < 0) && SSL_want_write(s)) { 2274 bio = SSL_get_wbio(s); 2275 if (BIO_should_write(bio)) { 2276 return (SSL_ERROR_WANT_WRITE); 2277 } else if (BIO_should_read(bio)) { 2278 /* 2279 * See above (SSL_want_read(s) with 2280 * BIO_should_write(bio)) 2281 */ 2282 return (SSL_ERROR_WANT_READ); 2283 } else if (BIO_should_io_special(bio)) { 2284 reason = BIO_get_retry_reason(bio); 2285 if (reason == BIO_RR_CONNECT) 2286 return (SSL_ERROR_WANT_CONNECT); 2287 else if (reason == BIO_RR_ACCEPT) 2288 return (SSL_ERROR_WANT_ACCEPT); 2289 else 2290 return (SSL_ERROR_SYSCALL); 2291 } 2292 } 2293 if ((i < 0) && SSL_want_x509_lookup(s)) { 2294 return (SSL_ERROR_WANT_X509_LOOKUP); 2295 } 2296 2297 if (i == 0) { 2298 if ((s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) && 2299 (S3I(s)->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2300 return (SSL_ERROR_ZERO_RETURN); 2301 } 2302 return (SSL_ERROR_SYSCALL); 2303} 2304 2305int 2306SSL_do_handshake(SSL *s) 2307{ 2308 int ret = 1; 2309 2310 if (s->internal->handshake_func == NULL) { 2311 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2312 return (-1); 2313 } 2314 2315 s->method->internal->ssl_renegotiate_check(s); 2316 2317 if (SSL_in_init(s) || SSL_in_before(s)) { 2318 ret = s->internal->handshake_func(s); 2319 } 2320 return (ret); 2321} 2322 2323/* 2324 * For the next 2 functions, SSL_clear() sets shutdown and so 2325 * one of these calls will reset it 2326 */ 2327void 2328SSL_set_accept_state(SSL *s) 2329{ 2330 s->server = 1; 2331 s->internal->shutdown = 0; 2332 S3I(s)->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2333 s->internal->handshake_func = s->method->internal->ssl_accept; 2334 ssl_clear_cipher_state(s); 2335} 2336 2337void 2338SSL_set_connect_state(SSL *s) 2339{ 2340 s->server = 0; 2341 s->internal->shutdown = 0; 2342 S3I(s)->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2343 s->internal->handshake_func = s->method->internal->ssl_connect; 2344 ssl_clear_cipher_state(s); 2345} 2346 2347int 2348ssl_undefined_function(SSL *s) 2349{ 2350 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2351 return (0); 2352} 2353 2354int 2355ssl_undefined_void_function(void) 2356{ 2357 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2358 return (0); 2359} 2360 2361int 2362ssl_undefined_const_function(const SSL *s) 2363{ 2364 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2365 return (0); 2366} 2367 2368const char * 2369ssl_version_string(int ver) 2370{ 2371 switch (ver) { 2372 case DTLS1_VERSION: 2373 return (SSL_TXT_DTLS1); 2374 case TLS1_VERSION: 2375 return (SSL_TXT_TLSV1); 2376 case TLS1_1_VERSION: 2377 return (SSL_TXT_TLSV1_1); 2378 case TLS1_2_VERSION: 2379 return (SSL_TXT_TLSV1_2); 2380 case TLS1_3_VERSION: 2381 return (SSL_TXT_TLSV1_3); 2382 default: 2383 return ("unknown"); 2384 } 2385} 2386 2387const char * 2388SSL_get_version(const SSL *s) 2389{ 2390 return ssl_version_string(s->version); 2391} 2392 2393SSL * 2394SSL_dup(SSL *s) 2395{ 2396 STACK_OF(X509_NAME) *sk; 2397 X509_NAME *xn; 2398 SSL *ret; 2399 int i; 2400 2401 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2402 goto err; 2403 2404 ret->version = s->version; 2405 ret->internal->type = s->internal->type; 2406 ret->method = s->method; 2407 2408 if (s->session != NULL) { 2409 if (!SSL_copy_session_id(ret, s)) 2410 goto err; 2411 } else { 2412 /* 2413 * No session has been established yet, so we have to expect 2414 * that s->cert or ret->cert will be changed later -- 2415 * they should not both point to the same object, 2416 * and thus we can't use SSL_copy_session_id. 2417 */ 2418 2419 ret->method->internal->ssl_free(ret); 2420 ret->method = s->method; 2421 ret->method->internal->ssl_new(ret); 2422 2423 ssl_cert_free(ret->cert); 2424 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2425 goto err; 2426 2427 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2428 s->sid_ctx_length)) 2429 goto err; 2430 } 2431 2432 ret->internal->options = s->internal->options; 2433 ret->internal->mode = s->internal->mode; 2434 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2435 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2436 ret->internal->msg_callback = s->internal->msg_callback; 2437 ret->internal->msg_callback_arg = s->internal->msg_callback_arg; 2438 SSL_set_verify(ret, SSL_get_verify_mode(s), 2439 SSL_get_verify_callback(s)); 2440 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2441 ret->internal->generate_session_id = s->internal->generate_session_id; 2442 2443 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2444 2445 ret->internal->debug = s->internal->debug; 2446 2447 /* copy app data, a little dangerous perhaps */ 2448 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2449 &ret->internal->ex_data, &s->internal->ex_data)) 2450 goto err; 2451 2452 /* setup rbio, and wbio */ 2453 if (s->rbio != NULL) { 2454 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2455 goto err; 2456 } 2457 if (s->wbio != NULL) { 2458 if (s->wbio != s->rbio) { 2459 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2460 goto err; 2461 } else 2462 ret->wbio = ret->rbio; 2463 } 2464 ret->internal->rwstate = s->internal->rwstate; 2465 ret->internal->in_handshake = s->internal->in_handshake; 2466 ret->internal->handshake_func = s->internal->handshake_func; 2467 ret->server = s->server; 2468 ret->internal->renegotiate = s->internal->renegotiate; 2469 ret->internal->new_session = s->internal->new_session; 2470 ret->internal->quiet_shutdown = s->internal->quiet_shutdown; 2471 ret->internal->shutdown = s->internal->shutdown; 2472 /* SSL_dup does not really work at any state, though */ 2473 S3I(ret)->hs.state = S3I(s)->hs.state; 2474 ret->internal->rstate = s->internal->rstate; 2475 2476 /* 2477 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2478 * ret->init_off 2479 */ 2480 ret->internal->init_num = 0; 2481 2482 ret->internal->hit = s->internal->hit; 2483 2484 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2485 2486 /* dup the cipher_list and cipher_list_by_id stacks */ 2487 if (s->cipher_list != NULL) { 2488 if ((ret->cipher_list = 2489 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2490 goto err; 2491 } 2492 if (s->internal->cipher_list_by_id != NULL) { 2493 if ((ret->internal->cipher_list_by_id = 2494 sk_SSL_CIPHER_dup(s->internal->cipher_list_by_id)) == NULL) 2495 goto err; 2496 } 2497 2498 /* Dup the client_CA list */ 2499 if (s->internal->client_CA != NULL) { 2500 if ((sk = sk_X509_NAME_dup(s->internal->client_CA)) == NULL) goto err; 2501 ret->internal->client_CA = sk; 2502 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2503 xn = sk_X509_NAME_value(sk, i); 2504 if (sk_X509_NAME_set(sk, i, 2505 X509_NAME_dup(xn)) == NULL) { 2506 X509_NAME_free(xn); 2507 goto err; 2508 } 2509 } 2510 } 2511 2512 return ret; 2513 err: 2514 SSL_free(ret); 2515 return NULL; 2516} 2517 2518void 2519ssl_clear_cipher_state(SSL *s) 2520{ 2521 ssl_clear_cipher_read_state(s); 2522 ssl_clear_cipher_write_state(s); 2523} 2524 2525void 2526ssl_clear_cipher_read_state(SSL *s) 2527{ 2528 EVP_CIPHER_CTX_free(s->enc_read_ctx); 2529 s->enc_read_ctx = NULL; 2530 EVP_MD_CTX_free(s->read_hash); 2531 s->read_hash = NULL; 2532 2533 tls12_record_layer_clear_read_state(s->internal->rl); 2534 tls12_record_layer_set_read_seq_num(s->internal->rl, 2535 S3I(s)->read_sequence); 2536 2537 if (s->internal->aead_read_ctx != NULL) { 2538 EVP_AEAD_CTX_cleanup(&s->internal->aead_read_ctx->ctx); 2539 free(s->internal->aead_read_ctx); 2540 s->internal->aead_read_ctx = NULL; 2541 } 2542} 2543 2544void 2545ssl_clear_cipher_write_state(SSL *s) 2546{ 2547 EVP_CIPHER_CTX_free(s->internal->enc_write_ctx); 2548 s->internal->enc_write_ctx = NULL; 2549 EVP_MD_CTX_free(s->internal->write_hash); 2550 s->internal->write_hash = NULL; 2551 2552 tls12_record_layer_clear_write_state(s->internal->rl); 2553 tls12_record_layer_set_write_seq_num(s->internal->rl, 2554 S3I(s)->write_sequence); 2555 2556 if (s->internal->aead_write_ctx != NULL) { 2557 EVP_AEAD_CTX_cleanup(&s->internal->aead_write_ctx->ctx); 2558 free(s->internal->aead_write_ctx); 2559 s->internal->aead_write_ctx = NULL; 2560 } 2561} 2562 2563/* Fix this function so that it takes an optional type parameter */ 2564X509 * 2565SSL_get_certificate(const SSL *s) 2566{ 2567 return (s->cert->key->x509); 2568} 2569 2570/* Fix this function so that it takes an optional type parameter */ 2571EVP_PKEY * 2572SSL_get_privatekey(const SSL *s) 2573{ 2574 return (s->cert->key->privatekey); 2575} 2576 2577const SSL_CIPHER * 2578SSL_get_current_cipher(const SSL *s) 2579{ 2580 if ((s->session != NULL) && (s->session->cipher != NULL)) 2581 return (s->session->cipher); 2582 return (NULL); 2583} 2584const void * 2585SSL_get_current_compression(SSL *s) 2586{ 2587 return (NULL); 2588} 2589 2590const void * 2591SSL_get_current_expansion(SSL *s) 2592{ 2593 return (NULL); 2594} 2595 2596size_t 2597SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 2598{ 2599 size_t len = sizeof(s->s3->client_random); 2600 2601 if (out == NULL) 2602 return len; 2603 2604 if (len > max_out) 2605 len = max_out; 2606 2607 memcpy(out, s->s3->client_random, len); 2608 2609 return len; 2610} 2611 2612size_t 2613SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 2614{ 2615 size_t len = sizeof(s->s3->server_random); 2616 2617 if (out == NULL) 2618 return len; 2619 2620 if (len > max_out) 2621 len = max_out; 2622 2623 memcpy(out, s->s3->server_random, len); 2624 2625 return len; 2626} 2627 2628int 2629ssl_init_wbio_buffer(SSL *s, int push) 2630{ 2631 BIO *bbio; 2632 2633 if (s->bbio == NULL) { 2634 bbio = BIO_new(BIO_f_buffer()); 2635 if (bbio == NULL) 2636 return (0); 2637 s->bbio = bbio; 2638 } else { 2639 bbio = s->bbio; 2640 if (s->bbio == s->wbio) 2641 s->wbio = BIO_pop(s->wbio); 2642 } 2643 (void)BIO_reset(bbio); 2644/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2645 if (!BIO_set_read_buffer_size(bbio, 1)) { 2646 SSLerror(s, ERR_R_BUF_LIB); 2647 return (0); 2648 } 2649 if (push) { 2650 if (s->wbio != bbio) 2651 s->wbio = BIO_push(bbio, s->wbio); 2652 } else { 2653 if (s->wbio == bbio) 2654 s->wbio = BIO_pop(bbio); 2655 } 2656 return (1); 2657} 2658 2659void 2660ssl_free_wbio_buffer(SSL *s) 2661{ 2662 if (s == NULL) 2663 return; 2664 2665 if (s->bbio == NULL) 2666 return; 2667 2668 if (s->bbio == s->wbio) { 2669 /* remove buffering */ 2670 s->wbio = BIO_pop(s->wbio); 2671 } 2672 BIO_free(s->bbio); 2673 s->bbio = NULL; 2674} 2675 2676void 2677SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 2678{ 2679 ctx->internal->quiet_shutdown = mode; 2680} 2681 2682int 2683SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2684{ 2685 return (ctx->internal->quiet_shutdown); 2686} 2687 2688void 2689SSL_set_quiet_shutdown(SSL *s, int mode) 2690{ 2691 s->internal->quiet_shutdown = mode; 2692} 2693 2694int 2695SSL_get_quiet_shutdown(const SSL *s) 2696{ 2697 return (s->internal->quiet_shutdown); 2698} 2699 2700void 2701SSL_set_shutdown(SSL *s, int mode) 2702{ 2703 s->internal->shutdown = mode; 2704} 2705 2706int 2707SSL_get_shutdown(const SSL *s) 2708{ 2709 return (s->internal->shutdown); 2710} 2711 2712int 2713SSL_version(const SSL *s) 2714{ 2715 return (s->version); 2716} 2717 2718SSL_CTX * 2719SSL_get_SSL_CTX(const SSL *ssl) 2720{ 2721 return (ssl->ctx); 2722} 2723 2724SSL_CTX * 2725SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2726{ 2727 if (ssl->ctx == ctx) 2728 return (ssl->ctx); 2729 if (ctx == NULL) 2730 ctx = ssl->initial_ctx; 2731 2732 ssl_cert_free(ssl->cert); 2733 ssl->cert = ssl_cert_dup(ctx->internal->cert); 2734 2735 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 2736 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2737 ssl->ctx = ctx; 2738 return (ssl->ctx); 2739} 2740 2741int 2742SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2743{ 2744 return (X509_STORE_set_default_paths(ctx->cert_store)); 2745} 2746 2747int 2748SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2749 const char *CApath) 2750{ 2751 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 2752} 2753 2754int 2755SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 2756{ 2757 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 2758} 2759 2760void 2761SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 2762{ 2763 ssl->internal->info_callback = cb; 2764} 2765 2766void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 2767{ 2768 return (ssl->internal->info_callback); 2769} 2770 2771int 2772SSL_state(const SSL *ssl) 2773{ 2774 return (S3I(ssl)->hs.state); 2775} 2776 2777void 2778SSL_set_state(SSL *ssl, int state) 2779{ 2780 S3I(ssl)->hs.state = state; 2781} 2782 2783void 2784SSL_set_verify_result(SSL *ssl, long arg) 2785{ 2786 ssl->verify_result = arg; 2787} 2788 2789long 2790SSL_get_verify_result(const SSL *ssl) 2791{ 2792 return (ssl->verify_result); 2793} 2794 2795int 2796SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2797 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2798{ 2799 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2800 new_func, dup_func, free_func)); 2801} 2802 2803int 2804SSL_set_ex_data(SSL *s, int idx, void *arg) 2805{ 2806 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2807} 2808 2809void * 2810SSL_get_ex_data(const SSL *s, int idx) 2811{ 2812 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2813} 2814 2815int 2816SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2817 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2818{ 2819 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2820 new_func, dup_func, free_func)); 2821} 2822 2823int 2824SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 2825{ 2826 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2827} 2828 2829void * 2830SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 2831{ 2832 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2833} 2834 2835int 2836ssl_ok(SSL *s) 2837{ 2838 return (1); 2839} 2840 2841X509_STORE * 2842SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2843{ 2844 return (ctx->cert_store); 2845} 2846 2847void 2848SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 2849{ 2850 X509_STORE_free(ctx->cert_store); 2851 ctx->cert_store = store; 2852} 2853 2854X509 * 2855SSL_CTX_get0_certificate(const SSL_CTX *ctx) 2856{ 2857 if (ctx->internal->cert == NULL) 2858 return NULL; 2859 2860 return ctx->internal->cert->key->x509; 2861} 2862 2863int 2864SSL_want(const SSL *s) 2865{ 2866 return (s->internal->rwstate); 2867} 2868 2869void 2870SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 2871 int keylength)) 2872{ 2873 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2874} 2875 2876void 2877SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 2878 int keylength)) 2879{ 2880 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2881} 2882 2883void 2884SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 2885 int keylength)) 2886{ 2887 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2888} 2889 2890void 2891SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 2892 int keylength)) 2893{ 2894 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2895} 2896 2897void 2898SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 2899 int is_export, int keylength)) 2900{ 2901 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 2902 (void (*)(void))ecdh); 2903} 2904 2905void 2906SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 2907 int keylength)) 2908{ 2909 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2910} 2911 2912 2913void 2914SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 2915 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2916{ 2917 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 2918 (void (*)(void))cb); 2919} 2920 2921void 2922SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 2923 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2924{ 2925 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2926} 2927 2928void 2929SSL_set_debug(SSL *s, int debug) 2930{ 2931 s->internal->debug = debug; 2932} 2933 2934int 2935SSL_cache_hit(SSL *s) 2936{ 2937 return (s->internal->hit); 2938} 2939 2940int 2941SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 2942{ 2943 return ctx->internal->min_version; 2944} 2945 2946int 2947SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 2948{ 2949 return ssl_version_set_min(ctx->method, version, 2950 ctx->internal->max_version, &ctx->internal->min_version); 2951} 2952 2953int 2954SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 2955{ 2956 return ctx->internal->max_version; 2957} 2958 2959int 2960SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 2961{ 2962 return ssl_version_set_max(ctx->method, version, 2963 ctx->internal->min_version, &ctx->internal->max_version); 2964} 2965 2966int 2967SSL_get_min_proto_version(SSL *ssl) 2968{ 2969 return ssl->internal->min_version; 2970} 2971 2972int 2973SSL_set_min_proto_version(SSL *ssl, uint16_t version) 2974{ 2975 return ssl_version_set_min(ssl->method, version, 2976 ssl->internal->max_version, &ssl->internal->min_version); 2977} 2978int 2979SSL_get_max_proto_version(SSL *ssl) 2980{ 2981 return ssl->internal->max_version; 2982} 2983 2984int 2985SSL_set_max_proto_version(SSL *ssl, uint16_t version) 2986{ 2987 return ssl_version_set_max(ssl->method, version, 2988 ssl->internal->min_version, &ssl->internal->max_version); 2989} 2990 2991static int 2992ssl_cipher_id_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 2993{ 2994 SSL_CIPHER const *a = a_; 2995 SSL_CIPHER const *b = b_; 2996 return ssl_cipher_id_cmp(a, b); 2997} 2998 2999SSL_CIPHER * 3000OBJ_bsearch_ssl_cipher_id(SSL_CIPHER *key, SSL_CIPHER const *base, int num) 3001{ 3002 return (SSL_CIPHER *)OBJ_bsearch_(key, base, num, sizeof(SSL_CIPHER), 3003 ssl_cipher_id_cmp_BSEARCH_CMP_FN); 3004} 3005