1 /* $OpenBSD: ssl_lib.c,v 1.314 2023/09/19 01:22:31 tb 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 <limits.h> 148 #include <stdio.h> 149 150 #include <openssl/dh.h> 151 #include <openssl/lhash.h> 152 #include <openssl/objects.h> 153 #include <openssl/ocsp.h> 154 #include <openssl/opensslconf.h> 155 #include <openssl/x509v3.h> 156 157 #ifndef OPENSSL_NO_ENGINE 158 #include <openssl/engine.h> 159 #endif 160 161 #include "bytestring.h" 162 #include "dtls_local.h" 163 #include "ssl_local.h" 164 #include "ssl_sigalgs.h" 165 #include "ssl_tlsext.h" 166 #include "tls12_internal.h" 167 168 const char *SSL_version_str = OPENSSL_VERSION_TEXT; 169 170 int 171 SSL_clear(SSL *s) 172 { 173 if (s->method == NULL) { 174 SSLerror(s, SSL_R_NO_METHOD_SPECIFIED); 175 return (0); 176 } 177 178 if (ssl_clear_bad_session(s)) { 179 SSL_SESSION_free(s->session); 180 s->session = NULL; 181 } 182 183 s->error = 0; 184 s->hit = 0; 185 s->shutdown = 0; 186 187 if (s->renegotiate) { 188 SSLerror(s, ERR_R_INTERNAL_ERROR); 189 return (0); 190 } 191 192 s->version = s->method->version; 193 s->client_version = s->version; 194 s->rwstate = SSL_NOTHING; 195 s->rstate = SSL_ST_READ_HEADER; 196 197 tls13_ctx_free(s->tls13); 198 s->tls13 = NULL; 199 200 ssl3_release_init_buffer(s); 201 202 ssl_clear_cipher_state(s); 203 204 s->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->in_handshake && (s->session == NULL) && 211 (s->method != s->ctx->method)) { 212 s->method->ssl_free(s); 213 s->method = s->ctx->method; 214 if (!s->method->ssl_new(s)) 215 return (0); 216 } else 217 s->method->ssl_clear(s); 218 219 return (1); 220 } 221 LSSL_ALIAS(SSL_clear); 222 223 /* Used to change an SSL_CTXs default SSL method type */ 224 int 225 SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 226 { 227 STACK_OF(SSL_CIPHER) *ciphers; 228 229 ctx->method = meth; 230 231 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 232 ctx->cipher_list_tls13, SSL_DEFAULT_CIPHER_LIST, 233 ctx->cert); 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 LSSL_ALIAS(SSL_CTX_set_ssl_version); 241 242 SSL * 243 SSL_new(SSL_CTX *ctx) 244 { 245 SSL *s; 246 CBS cbs; 247 248 if (ctx == NULL) { 249 SSLerrorx(SSL_R_NULL_SSL_CTX); 250 return (NULL); 251 } 252 if (ctx->method == NULL) { 253 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 254 return (NULL); 255 } 256 257 if ((s = calloc(1, sizeof(*s))) == NULL) 258 goto err; 259 260 if ((s->rl = tls12_record_layer_new()) == NULL) 261 goto err; 262 263 s->min_tls_version = ctx->min_tls_version; 264 s->max_tls_version = ctx->max_tls_version; 265 s->min_proto_version = ctx->min_proto_version; 266 s->max_proto_version = ctx->max_proto_version; 267 268 s->options = ctx->options; 269 s->mode = ctx->mode; 270 s->max_cert_list = ctx->max_cert_list; 271 s->num_tickets = ctx->num_tickets; 272 273 if ((s->cert = ssl_cert_dup(ctx->cert)) == NULL) 274 goto err; 275 276 s->read_ahead = ctx->read_ahead; 277 s->msg_callback = ctx->msg_callback; 278 s->msg_callback_arg = ctx->msg_callback_arg; 279 s->verify_mode = ctx->verify_mode; 280 s->sid_ctx_length = ctx->sid_ctx_length; 281 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 282 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); 283 s->verify_callback = ctx->default_verify_callback; 284 s->generate_session_id = ctx->generate_session_id; 285 286 s->param = X509_VERIFY_PARAM_new(); 287 if (!s->param) 288 goto err; 289 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 290 s->quiet_shutdown = ctx->quiet_shutdown; 291 s->max_send_fragment = ctx->max_send_fragment; 292 293 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 294 s->ctx = ctx; 295 s->tlsext_debug_cb = NULL; 296 s->tlsext_debug_arg = NULL; 297 s->tlsext_ticket_expected = 0; 298 s->tlsext_status_type = -1; 299 s->tlsext_status_expected = 0; 300 s->tlsext_ocsp_ids = NULL; 301 s->tlsext_ocsp_exts = NULL; 302 s->tlsext_ocsp_resp = NULL; 303 s->tlsext_ocsp_resp_len = 0; 304 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 305 s->initial_ctx = ctx; 306 307 if (!tlsext_randomize_build_order(s)) 308 goto err; 309 310 if (ctx->tlsext_ecpointformatlist != NULL) { 311 s->tlsext_ecpointformatlist = 312 calloc(ctx->tlsext_ecpointformatlist_length, 313 sizeof(ctx->tlsext_ecpointformatlist[0])); 314 if (s->tlsext_ecpointformatlist == NULL) 315 goto err; 316 memcpy(s->tlsext_ecpointformatlist, 317 ctx->tlsext_ecpointformatlist, 318 ctx->tlsext_ecpointformatlist_length * 319 sizeof(ctx->tlsext_ecpointformatlist[0])); 320 s->tlsext_ecpointformatlist_length = 321 ctx->tlsext_ecpointformatlist_length; 322 } 323 if (ctx->tlsext_supportedgroups != NULL) { 324 s->tlsext_supportedgroups = 325 calloc(ctx->tlsext_supportedgroups_length, 326 sizeof(ctx->tlsext_supportedgroups[0])); 327 if (s->tlsext_supportedgroups == NULL) 328 goto err; 329 memcpy(s->tlsext_supportedgroups, 330 ctx->tlsext_supportedgroups, 331 ctx->tlsext_supportedgroups_length * 332 sizeof(ctx->tlsext_supportedgroups[0])); 333 s->tlsext_supportedgroups_length = 334 ctx->tlsext_supportedgroups_length; 335 } 336 337 CBS_init(&cbs, ctx->alpn_client_proto_list, 338 ctx->alpn_client_proto_list_len); 339 if (!CBS_stow(&cbs, &s->alpn_client_proto_list, 340 &s->alpn_client_proto_list_len)) 341 goto err; 342 343 s->verify_result = X509_V_OK; 344 345 s->method = ctx->method; 346 s->quic_method = ctx->quic_method; 347 348 if (!s->method->ssl_new(s)) 349 goto err; 350 351 s->references = 1; 352 s->server = ctx->method->server; 353 354 SSL_clear(s); 355 356 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 357 358 return (s); 359 360 err: 361 SSL_free(s); 362 SSLerrorx(ERR_R_MALLOC_FAILURE); 363 return (NULL); 364 } 365 LSSL_ALIAS(SSL_new); 366 367 int 368 SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 369 unsigned int sid_ctx_len) 370 { 371 if (sid_ctx_len > sizeof ctx->sid_ctx) { 372 SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 373 return (0); 374 } 375 ctx->sid_ctx_length = sid_ctx_len; 376 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 377 378 return (1); 379 } 380 LSSL_ALIAS(SSL_CTX_set_session_id_context); 381 382 int 383 SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 384 unsigned int sid_ctx_len) 385 { 386 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 387 SSLerror(ssl, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 388 return (0); 389 } 390 ssl->sid_ctx_length = sid_ctx_len; 391 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 392 393 return (1); 394 } 395 LSSL_ALIAS(SSL_set_session_id_context); 396 397 int 398 SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 399 { 400 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 401 ctx->generate_session_id = cb; 402 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 403 return (1); 404 } 405 LSSL_ALIAS(SSL_CTX_set_generate_session_id); 406 407 int 408 SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 409 { 410 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 411 ssl->generate_session_id = cb; 412 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 413 return (1); 414 } 415 LSSL_ALIAS(SSL_set_generate_session_id); 416 417 int 418 SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 419 unsigned int id_len) 420 { 421 /* 422 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 423 * shows how we can "construct" a session to give us the desired 424 * check - ie. to find if there's a session in the hash table 425 * that would conflict with any new session built out of this 426 * id/id_len and the ssl_version in use by this SSL. 427 */ 428 SSL_SESSION r, *p; 429 430 if (id_len > sizeof r.session_id) 431 return (0); 432 433 r.ssl_version = ssl->version; 434 r.session_id_length = id_len; 435 memcpy(r.session_id, id, id_len); 436 437 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 438 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r); 439 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 440 return (p != NULL); 441 } 442 LSSL_ALIAS(SSL_has_matching_session_id); 443 444 int 445 SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 446 { 447 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 448 } 449 LSSL_ALIAS(SSL_CTX_set_purpose); 450 451 int 452 SSL_set_purpose(SSL *s, int purpose) 453 { 454 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 455 } 456 LSSL_ALIAS(SSL_set_purpose); 457 458 int 459 SSL_CTX_set_trust(SSL_CTX *s, int trust) 460 { 461 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 462 } 463 LSSL_ALIAS(SSL_CTX_set_trust); 464 465 int 466 SSL_set_trust(SSL *s, int trust) 467 { 468 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 469 } 470 LSSL_ALIAS(SSL_set_trust); 471 472 int 473 SSL_set1_host(SSL *s, const char *hostname) 474 { 475 struct in_addr ina; 476 struct in6_addr in6a; 477 478 if (hostname != NULL && *hostname != '\0' && 479 (inet_pton(AF_INET, hostname, &ina) == 1 || 480 inet_pton(AF_INET6, hostname, &in6a) == 1)) 481 return X509_VERIFY_PARAM_set1_ip_asc(s->param, hostname); 482 else 483 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); 484 } 485 LSSL_ALIAS(SSL_set1_host); 486 487 void 488 SSL_set_hostflags(SSL *s, unsigned int flags) 489 { 490 X509_VERIFY_PARAM_set_hostflags(s->param, flags); 491 } 492 LSSL_ALIAS(SSL_set_hostflags); 493 494 const char * 495 SSL_get0_peername(SSL *s) 496 { 497 return X509_VERIFY_PARAM_get0_peername(s->param); 498 } 499 LSSL_ALIAS(SSL_get0_peername); 500 501 X509_VERIFY_PARAM * 502 SSL_CTX_get0_param(SSL_CTX *ctx) 503 { 504 return (ctx->param); 505 } 506 LSSL_ALIAS(SSL_CTX_get0_param); 507 508 int 509 SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 510 { 511 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 512 } 513 LSSL_ALIAS(SSL_CTX_set1_param); 514 515 X509_VERIFY_PARAM * 516 SSL_get0_param(SSL *ssl) 517 { 518 return (ssl->param); 519 } 520 LSSL_ALIAS(SSL_get0_param); 521 522 int 523 SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 524 { 525 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 526 } 527 LSSL_ALIAS(SSL_set1_param); 528 529 void 530 SSL_free(SSL *s) 531 { 532 int i; 533 534 if (s == NULL) 535 return; 536 537 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 538 if (i > 0) 539 return; 540 541 X509_VERIFY_PARAM_free(s->param); 542 543 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 544 545 if (s->bbio != NULL) { 546 /* If the buffering BIO is in place, pop it off */ 547 if (s->bbio == s->wbio) { 548 s->wbio = BIO_pop(s->wbio); 549 } 550 BIO_free(s->bbio); 551 s->bbio = NULL; 552 } 553 554 if (s->rbio != s->wbio) 555 BIO_free_all(s->rbio); 556 BIO_free_all(s->wbio); 557 558 tls13_ctx_free(s->tls13); 559 560 ssl3_release_init_buffer(s); 561 562 sk_SSL_CIPHER_free(s->cipher_list); 563 sk_SSL_CIPHER_free(s->cipher_list_tls13); 564 565 /* Make the next call work :-) */ 566 if (s->session != NULL) { 567 ssl_clear_bad_session(s); 568 SSL_SESSION_free(s->session); 569 } 570 571 ssl_clear_cipher_state(s); 572 573 ssl_cert_free(s->cert); 574 575 free(s->tlsext_build_order); 576 577 free(s->tlsext_hostname); 578 SSL_CTX_free(s->initial_ctx); 579 580 free(s->tlsext_ecpointformatlist); 581 free(s->tlsext_supportedgroups); 582 583 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 584 X509_EXTENSION_free); 585 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 586 free(s->tlsext_ocsp_resp); 587 588 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); 589 590 if (s->method != NULL) 591 s->method->ssl_free(s); 592 593 SSL_CTX_free(s->ctx); 594 595 free(s->alpn_client_proto_list); 596 597 free(s->quic_transport_params); 598 599 #ifndef OPENSSL_NO_SRTP 600 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); 601 #endif 602 603 tls12_record_layer_free(s->rl); 604 605 free(s); 606 } 607 LSSL_ALIAS(SSL_free); 608 609 int 610 SSL_up_ref(SSL *s) 611 { 612 int refs = CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL); 613 return (refs > 1) ? 1 : 0; 614 } 615 LSSL_ALIAS(SSL_up_ref); 616 617 void 618 SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 619 { 620 /* If the output buffering BIO is still in place, remove it */ 621 if (s->bbio != NULL) { 622 if (s->wbio == s->bbio) { 623 s->wbio = BIO_next(s->wbio); 624 BIO_set_next(s->bbio, NULL); 625 } 626 } 627 628 if (s->rbio != rbio && s->rbio != s->wbio) 629 BIO_free_all(s->rbio); 630 if (s->wbio != wbio) 631 BIO_free_all(s->wbio); 632 s->rbio = rbio; 633 s->wbio = wbio; 634 } 635 LSSL_ALIAS(SSL_set_bio); 636 637 BIO * 638 SSL_get_rbio(const SSL *s) 639 { 640 return (s->rbio); 641 } 642 LSSL_ALIAS(SSL_get_rbio); 643 644 void 645 SSL_set0_rbio(SSL *s, BIO *rbio) 646 { 647 BIO_free_all(s->rbio); 648 s->rbio = rbio; 649 } 650 LSSL_ALIAS(SSL_set0_rbio); 651 652 BIO * 653 SSL_get_wbio(const SSL *s) 654 { 655 return (s->wbio); 656 } 657 LSSL_ALIAS(SSL_get_wbio); 658 659 int 660 SSL_get_fd(const SSL *s) 661 { 662 return (SSL_get_rfd(s)); 663 } 664 LSSL_ALIAS(SSL_get_fd); 665 666 int 667 SSL_get_rfd(const SSL *s) 668 { 669 int ret = -1; 670 BIO *b, *r; 671 672 b = SSL_get_rbio(s); 673 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 674 if (r != NULL) 675 BIO_get_fd(r, &ret); 676 return (ret); 677 } 678 LSSL_ALIAS(SSL_get_rfd); 679 680 int 681 SSL_get_wfd(const SSL *s) 682 { 683 int ret = -1; 684 BIO *b, *r; 685 686 b = SSL_get_wbio(s); 687 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 688 if (r != NULL) 689 BIO_get_fd(r, &ret); 690 return (ret); 691 } 692 LSSL_ALIAS(SSL_get_wfd); 693 694 int 695 SSL_set_fd(SSL *s, int fd) 696 { 697 int ret = 0; 698 BIO *bio = NULL; 699 700 bio = BIO_new(BIO_s_socket()); 701 702 if (bio == NULL) { 703 SSLerror(s, ERR_R_BUF_LIB); 704 goto err; 705 } 706 BIO_set_fd(bio, fd, BIO_NOCLOSE); 707 SSL_set_bio(s, bio, bio); 708 ret = 1; 709 err: 710 return (ret); 711 } 712 LSSL_ALIAS(SSL_set_fd); 713 714 int 715 SSL_set_wfd(SSL *s, int fd) 716 { 717 int ret = 0; 718 BIO *bio = NULL; 719 720 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 721 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 722 bio = BIO_new(BIO_s_socket()); 723 724 if (bio == NULL) { 725 SSLerror(s, ERR_R_BUF_LIB); 726 goto err; 727 } 728 BIO_set_fd(bio, fd, BIO_NOCLOSE); 729 SSL_set_bio(s, SSL_get_rbio(s), bio); 730 } else 731 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 732 ret = 1; 733 err: 734 return (ret); 735 } 736 LSSL_ALIAS(SSL_set_wfd); 737 738 int 739 SSL_set_rfd(SSL *s, int fd) 740 { 741 int ret = 0; 742 BIO *bio = NULL; 743 744 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 745 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 746 bio = BIO_new(BIO_s_socket()); 747 748 if (bio == NULL) { 749 SSLerror(s, ERR_R_BUF_LIB); 750 goto err; 751 } 752 BIO_set_fd(bio, fd, BIO_NOCLOSE); 753 SSL_set_bio(s, bio, SSL_get_wbio(s)); 754 } else 755 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 756 ret = 1; 757 err: 758 return (ret); 759 } 760 LSSL_ALIAS(SSL_set_rfd); 761 762 763 /* return length of latest Finished message we sent, copy to 'buf' */ 764 size_t 765 SSL_get_finished(const SSL *s, void *buf, size_t count) 766 { 767 size_t ret; 768 769 ret = s->s3->hs.finished_len; 770 if (count > ret) 771 count = ret; 772 memcpy(buf, s->s3->hs.finished, count); 773 return (ret); 774 } 775 LSSL_ALIAS(SSL_get_finished); 776 777 /* return length of latest Finished message we expected, copy to 'buf' */ 778 size_t 779 SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 780 { 781 size_t ret; 782 783 ret = s->s3->hs.peer_finished_len; 784 if (count > ret) 785 count = ret; 786 memcpy(buf, s->s3->hs.peer_finished, count); 787 return (ret); 788 } 789 LSSL_ALIAS(SSL_get_peer_finished); 790 791 792 int 793 SSL_get_verify_mode(const SSL *s) 794 { 795 return (s->verify_mode); 796 } 797 LSSL_ALIAS(SSL_get_verify_mode); 798 799 int 800 SSL_get_verify_depth(const SSL *s) 801 { 802 return (X509_VERIFY_PARAM_get_depth(s->param)); 803 } 804 LSSL_ALIAS(SSL_get_verify_depth); 805 806 int 807 (*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 808 { 809 return (s->verify_callback); 810 } 811 LSSL_ALIAS(SSL_get_verify_callback); 812 813 void 814 SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) 815 { 816 ctx->keylog_callback = cb; 817 } 818 LSSL_ALIAS(SSL_CTX_set_keylog_callback); 819 820 SSL_CTX_keylog_cb_func 821 SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) 822 { 823 return (ctx->keylog_callback); 824 } 825 LSSL_ALIAS(SSL_CTX_get_keylog_callback); 826 827 int 828 SSL_set_num_tickets(SSL *s, size_t num_tickets) 829 { 830 s->num_tickets = num_tickets; 831 832 return 1; 833 } 834 LSSL_ALIAS(SSL_set_num_tickets); 835 836 size_t 837 SSL_get_num_tickets(const SSL *s) 838 { 839 return s->num_tickets; 840 } 841 LSSL_ALIAS(SSL_get_num_tickets); 842 843 int 844 SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets) 845 { 846 ctx->num_tickets = num_tickets; 847 848 return 1; 849 } 850 LSSL_ALIAS(SSL_CTX_set_num_tickets); 851 852 size_t 853 SSL_CTX_get_num_tickets(const SSL_CTX *ctx) 854 { 855 return ctx->num_tickets; 856 } 857 LSSL_ALIAS(SSL_CTX_get_num_tickets); 858 859 int 860 SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 861 { 862 return (ctx->verify_mode); 863 } 864 LSSL_ALIAS(SSL_CTX_get_verify_mode); 865 866 int 867 SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 868 { 869 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 870 } 871 LSSL_ALIAS(SSL_CTX_get_verify_depth); 872 873 int 874 (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 875 { 876 return (ctx->default_verify_callback); 877 } 878 LSSL_ALIAS(SSL_CTX_get_verify_callback); 879 880 void 881 SSL_set_verify(SSL *s, int mode, 882 int (*callback)(int ok, X509_STORE_CTX *ctx)) 883 { 884 s->verify_mode = mode; 885 if (callback != NULL) 886 s->verify_callback = callback; 887 } 888 LSSL_ALIAS(SSL_set_verify); 889 890 void 891 SSL_set_verify_depth(SSL *s, int depth) 892 { 893 X509_VERIFY_PARAM_set_depth(s->param, depth); 894 } 895 LSSL_ALIAS(SSL_set_verify_depth); 896 897 void 898 SSL_set_read_ahead(SSL *s, int yes) 899 { 900 s->read_ahead = yes; 901 } 902 LSSL_ALIAS(SSL_set_read_ahead); 903 904 int 905 SSL_get_read_ahead(const SSL *s) 906 { 907 return (s->read_ahead); 908 } 909 LSSL_ALIAS(SSL_get_read_ahead); 910 911 int 912 SSL_pending(const SSL *s) 913 { 914 return (s->method->ssl_pending(s)); 915 } 916 LSSL_ALIAS(SSL_pending); 917 918 X509 * 919 SSL_get_peer_certificate(const SSL *s) 920 { 921 X509 *cert; 922 923 if (s == NULL || s->session == NULL) 924 return NULL; 925 926 if ((cert = s->session->peer_cert) == NULL) 927 return NULL; 928 929 X509_up_ref(cert); 930 931 return cert; 932 } 933 LSSL_ALIAS(SSL_get_peer_certificate); 934 935 STACK_OF(X509) * 936 SSL_get_peer_cert_chain(const SSL *s) 937 { 938 if (s == NULL) 939 return NULL; 940 941 /* 942 * Achtung! Due to API inconsistency, a client includes the peer's leaf 943 * certificate in the peer certificate chain, while a server does not. 944 */ 945 if (!s->server) 946 return s->s3->hs.peer_certs; 947 948 return s->s3->hs.peer_certs_no_leaf; 949 } 950 LSSL_ALIAS(SSL_get_peer_cert_chain); 951 952 STACK_OF(X509) * 953 SSL_get0_verified_chain(const SSL *s) 954 { 955 if (s->s3 == NULL) 956 return NULL; 957 return s->s3->hs.verified_chain; 958 } 959 LSSL_ALIAS(SSL_get0_verified_chain); 960 961 /* 962 * Now in theory, since the calling process own 't' it should be safe to 963 * modify. We need to be able to read f without being hassled 964 */ 965 int 966 SSL_copy_session_id(SSL *t, const SSL *f) 967 { 968 SSL_CERT *tmp; 969 970 /* Do we need to do SSL locking? */ 971 if (!SSL_set_session(t, SSL_get_session(f))) 972 return 0; 973 974 /* What if we are set up for one protocol but want to talk another? */ 975 if (t->method != f->method) { 976 t->method->ssl_free(t); 977 t->method = f->method; 978 if (!t->method->ssl_new(t)) 979 return 0; 980 } 981 982 tmp = t->cert; 983 if (f->cert != NULL) { 984 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 985 t->cert = f->cert; 986 } else 987 t->cert = NULL; 988 ssl_cert_free(tmp); 989 990 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) 991 return 0; 992 993 return 1; 994 } 995 LSSL_ALIAS(SSL_copy_session_id); 996 997 /* Fix this so it checks all the valid key/cert options */ 998 int 999 SSL_CTX_check_private_key(const SSL_CTX *ctx) 1000 { 1001 if ((ctx == NULL) || (ctx->cert == NULL) || 1002 (ctx->cert->key->x509 == NULL)) { 1003 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED); 1004 return (0); 1005 } 1006 if (ctx->cert->key->privatekey == NULL) { 1007 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED); 1008 return (0); 1009 } 1010 return (X509_check_private_key(ctx->cert->key->x509, 1011 ctx->cert->key->privatekey)); 1012 } 1013 LSSL_ALIAS(SSL_CTX_check_private_key); 1014 1015 /* Fix this function so that it takes an optional type parameter */ 1016 int 1017 SSL_check_private_key(const SSL *ssl) 1018 { 1019 if (ssl == NULL) { 1020 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); 1021 return (0); 1022 } 1023 if (ssl->cert == NULL) { 1024 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 1025 return (0); 1026 } 1027 if (ssl->cert->key->x509 == NULL) { 1028 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 1029 return (0); 1030 } 1031 if (ssl->cert->key->privatekey == NULL) { 1032 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 1033 return (0); 1034 } 1035 return (X509_check_private_key(ssl->cert->key->x509, 1036 ssl->cert->key->privatekey)); 1037 } 1038 LSSL_ALIAS(SSL_check_private_key); 1039 1040 int 1041 SSL_accept(SSL *s) 1042 { 1043 if (s->handshake_func == NULL) 1044 SSL_set_accept_state(s); /* Not properly initialized yet */ 1045 1046 return (s->method->ssl_accept(s)); 1047 } 1048 LSSL_ALIAS(SSL_accept); 1049 1050 int 1051 SSL_connect(SSL *s) 1052 { 1053 if (s->handshake_func == NULL) 1054 SSL_set_connect_state(s); /* Not properly initialized yet */ 1055 1056 return (s->method->ssl_connect(s)); 1057 } 1058 LSSL_ALIAS(SSL_connect); 1059 1060 int 1061 SSL_is_dtls(const SSL *s) 1062 { 1063 return s->method->dtls; 1064 } 1065 LSSL_ALIAS(SSL_is_dtls); 1066 1067 int 1068 SSL_is_server(const SSL *s) 1069 { 1070 return s->server; 1071 } 1072 LSSL_ALIAS(SSL_is_server); 1073 1074 static long 1075 ssl_get_default_timeout() 1076 { 1077 /* 1078 * 2 hours, the 24 hours mentioned in the TLSv1 spec 1079 * is way too long for http, the cache would over fill. 1080 */ 1081 return (2 * 60 * 60); 1082 } 1083 1084 long 1085 SSL_get_default_timeout(const SSL *s) 1086 { 1087 return (ssl_get_default_timeout()); 1088 } 1089 LSSL_ALIAS(SSL_get_default_timeout); 1090 1091 int 1092 SSL_read(SSL *s, void *buf, int num) 1093 { 1094 if (num < 0) { 1095 SSLerror(s, SSL_R_BAD_LENGTH); 1096 return -1; 1097 } 1098 1099 if (SSL_is_quic(s)) { 1100 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1101 return (-1); 1102 } 1103 1104 if (s->handshake_func == NULL) { 1105 SSLerror(s, SSL_R_UNINITIALIZED); 1106 return (-1); 1107 } 1108 1109 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 1110 s->rwstate = SSL_NOTHING; 1111 return (0); 1112 } 1113 return ssl3_read(s, buf, num); 1114 } 1115 LSSL_ALIAS(SSL_read); 1116 1117 int 1118 SSL_read_ex(SSL *s, void *buf, size_t num, size_t *bytes_read) 1119 { 1120 int ret; 1121 1122 /* We simply don't bother supporting enormous reads */ 1123 if (num > INT_MAX) { 1124 SSLerror(s, SSL_R_BAD_LENGTH); 1125 return 0; 1126 } 1127 1128 ret = SSL_read(s, buf, (int)num); 1129 if (ret < 0) 1130 ret = 0; 1131 *bytes_read = ret; 1132 1133 return ret > 0; 1134 } 1135 LSSL_ALIAS(SSL_read_ex); 1136 1137 int 1138 SSL_peek(SSL *s, void *buf, int num) 1139 { 1140 if (num < 0) { 1141 SSLerror(s, SSL_R_BAD_LENGTH); 1142 return -1; 1143 } 1144 1145 if (SSL_is_quic(s)) { 1146 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1147 return (-1); 1148 } 1149 1150 if (s->handshake_func == NULL) { 1151 SSLerror(s, SSL_R_UNINITIALIZED); 1152 return (-1); 1153 } 1154 1155 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 1156 return (0); 1157 } 1158 return ssl3_peek(s, buf, num); 1159 } 1160 LSSL_ALIAS(SSL_peek); 1161 1162 int 1163 SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *bytes_peeked) 1164 { 1165 int ret; 1166 1167 /* We simply don't bother supporting enormous peeks */ 1168 if (num > INT_MAX) { 1169 SSLerror(s, SSL_R_BAD_LENGTH); 1170 return 0; 1171 } 1172 1173 ret = SSL_peek(s, buf, (int)num); 1174 if (ret < 0) 1175 ret = 0; 1176 *bytes_peeked = ret; 1177 1178 return ret > 0; 1179 } 1180 LSSL_ALIAS(SSL_peek_ex); 1181 1182 int 1183 SSL_write(SSL *s, const void *buf, int num) 1184 { 1185 if (num < 0) { 1186 SSLerror(s, SSL_R_BAD_LENGTH); 1187 return -1; 1188 } 1189 1190 if (SSL_is_quic(s)) { 1191 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1192 return (-1); 1193 } 1194 1195 if (s->handshake_func == NULL) { 1196 SSLerror(s, SSL_R_UNINITIALIZED); 1197 return (-1); 1198 } 1199 1200 if (s->shutdown & SSL_SENT_SHUTDOWN) { 1201 s->rwstate = SSL_NOTHING; 1202 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 1203 return (-1); 1204 } 1205 return ssl3_write(s, buf, num); 1206 } 1207 LSSL_ALIAS(SSL_write); 1208 1209 int 1210 SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *bytes_written) 1211 { 1212 int ret; 1213 1214 /* We simply don't bother supporting enormous writes */ 1215 if (num > INT_MAX) { 1216 SSLerror(s, SSL_R_BAD_LENGTH); 1217 return 0; 1218 } 1219 1220 if (num == 0) { 1221 /* This API is special */ 1222 bytes_written = 0; 1223 return 1; 1224 } 1225 1226 ret = SSL_write(s, buf, (int)num); 1227 if (ret < 0) 1228 ret = 0; 1229 *bytes_written = ret; 1230 1231 return ret > 0; 1232 } 1233 LSSL_ALIAS(SSL_write_ex); 1234 1235 uint32_t 1236 SSL_CTX_get_max_early_data(const SSL_CTX *ctx) 1237 { 1238 return 0; 1239 } 1240 LSSL_ALIAS(SSL_CTX_get_max_early_data); 1241 1242 int 1243 SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) 1244 { 1245 return 1; 1246 } 1247 LSSL_ALIAS(SSL_CTX_set_max_early_data); 1248 1249 uint32_t 1250 SSL_get_max_early_data(const SSL *s) 1251 { 1252 return 0; 1253 } 1254 LSSL_ALIAS(SSL_get_max_early_data); 1255 1256 int 1257 SSL_set_max_early_data(SSL *s, uint32_t max_early_data) 1258 { 1259 return 1; 1260 } 1261 LSSL_ALIAS(SSL_set_max_early_data); 1262 1263 int 1264 SSL_get_early_data_status(const SSL *s) 1265 { 1266 return SSL_EARLY_DATA_REJECTED; 1267 } 1268 LSSL_ALIAS(SSL_get_early_data_status); 1269 1270 int 1271 SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) 1272 { 1273 *readbytes = 0; 1274 1275 if (!s->server) { 1276 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1277 return SSL_READ_EARLY_DATA_ERROR; 1278 } 1279 1280 return SSL_READ_EARLY_DATA_FINISH; 1281 } 1282 LSSL_ALIAS(SSL_read_early_data); 1283 1284 int 1285 SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) 1286 { 1287 *written = 0; 1288 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1289 return 0; 1290 } 1291 LSSL_ALIAS(SSL_write_early_data); 1292 1293 int 1294 SSL_shutdown(SSL *s) 1295 { 1296 /* 1297 * Note that this function behaves differently from what one might 1298 * expect. Return values are 0 for no success (yet), 1299 * 1 for success; but calling it once is usually not enough, 1300 * even if blocking I/O is used (see ssl3_shutdown). 1301 */ 1302 1303 if (s->handshake_func == NULL) { 1304 SSLerror(s, SSL_R_UNINITIALIZED); 1305 return (-1); 1306 } 1307 1308 if (s != NULL && !SSL_in_init(s)) 1309 return (s->method->ssl_shutdown(s)); 1310 1311 return (1); 1312 } 1313 LSSL_ALIAS(SSL_shutdown); 1314 1315 int 1316 SSL_renegotiate(SSL *s) 1317 { 1318 if (s->renegotiate == 0) 1319 s->renegotiate = 1; 1320 1321 s->new_session = 1; 1322 1323 return (s->method->ssl_renegotiate(s)); 1324 } 1325 LSSL_ALIAS(SSL_renegotiate); 1326 1327 int 1328 SSL_renegotiate_abbreviated(SSL *s) 1329 { 1330 if (s->renegotiate == 0) 1331 s->renegotiate = 1; 1332 1333 s->new_session = 0; 1334 1335 return (s->method->ssl_renegotiate(s)); 1336 } 1337 LSSL_ALIAS(SSL_renegotiate_abbreviated); 1338 1339 int 1340 SSL_renegotiate_pending(SSL *s) 1341 { 1342 /* 1343 * Becomes true when negotiation is requested; 1344 * false again once a handshake has finished. 1345 */ 1346 return (s->renegotiate != 0); 1347 } 1348 LSSL_ALIAS(SSL_renegotiate_pending); 1349 1350 long 1351 SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1352 { 1353 long l; 1354 1355 switch (cmd) { 1356 case SSL_CTRL_GET_READ_AHEAD: 1357 return (s->read_ahead); 1358 case SSL_CTRL_SET_READ_AHEAD: 1359 l = s->read_ahead; 1360 s->read_ahead = larg; 1361 return (l); 1362 1363 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1364 s->msg_callback_arg = parg; 1365 return (1); 1366 1367 case SSL_CTRL_OPTIONS: 1368 return (s->options|=larg); 1369 case SSL_CTRL_CLEAR_OPTIONS: 1370 return (s->options&=~larg); 1371 case SSL_CTRL_MODE: 1372 return (s->mode|=larg); 1373 case SSL_CTRL_CLEAR_MODE: 1374 return (s->mode &=~larg); 1375 case SSL_CTRL_GET_MAX_CERT_LIST: 1376 return (s->max_cert_list); 1377 case SSL_CTRL_SET_MAX_CERT_LIST: 1378 l = s->max_cert_list; 1379 s->max_cert_list = larg; 1380 return (l); 1381 case SSL_CTRL_SET_MTU: 1382 #ifndef OPENSSL_NO_DTLS1 1383 if (larg < (long)dtls1_min_mtu()) 1384 return (0); 1385 #endif 1386 if (SSL_is_dtls(s)) { 1387 s->d1->mtu = larg; 1388 return (larg); 1389 } 1390 return (0); 1391 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1392 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1393 return (0); 1394 s->max_send_fragment = larg; 1395 return (1); 1396 case SSL_CTRL_GET_RI_SUPPORT: 1397 if (s->s3) 1398 return (s->s3->send_connection_binding); 1399 else return (0); 1400 default: 1401 if (SSL_is_dtls(s)) 1402 return dtls1_ctrl(s, cmd, larg, parg); 1403 return ssl3_ctrl(s, cmd, larg, parg); 1404 } 1405 } 1406 LSSL_ALIAS(SSL_ctrl); 1407 1408 long 1409 SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1410 { 1411 switch (cmd) { 1412 case SSL_CTRL_SET_MSG_CALLBACK: 1413 s->msg_callback = (ssl_msg_callback_fn *)(fp); 1414 return (1); 1415 1416 default: 1417 return (ssl3_callback_ctrl(s, cmd, fp)); 1418 } 1419 } 1420 LSSL_ALIAS(SSL_callback_ctrl); 1421 1422 struct lhash_st_SSL_SESSION * 1423 SSL_CTX_sessions(SSL_CTX *ctx) 1424 { 1425 return (ctx->sessions); 1426 } 1427 LSSL_ALIAS(SSL_CTX_sessions); 1428 1429 long 1430 SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1431 { 1432 long l; 1433 1434 switch (cmd) { 1435 case SSL_CTRL_GET_READ_AHEAD: 1436 return (ctx->read_ahead); 1437 case SSL_CTRL_SET_READ_AHEAD: 1438 l = ctx->read_ahead; 1439 ctx->read_ahead = larg; 1440 return (l); 1441 1442 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1443 ctx->msg_callback_arg = parg; 1444 return (1); 1445 1446 case SSL_CTRL_GET_MAX_CERT_LIST: 1447 return (ctx->max_cert_list); 1448 case SSL_CTRL_SET_MAX_CERT_LIST: 1449 l = ctx->max_cert_list; 1450 ctx->max_cert_list = larg; 1451 return (l); 1452 1453 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1454 l = ctx->session_cache_size; 1455 ctx->session_cache_size = larg; 1456 return (l); 1457 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1458 return (ctx->session_cache_size); 1459 case SSL_CTRL_SET_SESS_CACHE_MODE: 1460 l = ctx->session_cache_mode; 1461 ctx->session_cache_mode = larg; 1462 return (l); 1463 case SSL_CTRL_GET_SESS_CACHE_MODE: 1464 return (ctx->session_cache_mode); 1465 1466 case SSL_CTRL_SESS_NUMBER: 1467 return (lh_SSL_SESSION_num_items(ctx->sessions)); 1468 case SSL_CTRL_SESS_CONNECT: 1469 return (ctx->stats.sess_connect); 1470 case SSL_CTRL_SESS_CONNECT_GOOD: 1471 return (ctx->stats.sess_connect_good); 1472 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1473 return (ctx->stats.sess_connect_renegotiate); 1474 case SSL_CTRL_SESS_ACCEPT: 1475 return (ctx->stats.sess_accept); 1476 case SSL_CTRL_SESS_ACCEPT_GOOD: 1477 return (ctx->stats.sess_accept_good); 1478 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1479 return (ctx->stats.sess_accept_renegotiate); 1480 case SSL_CTRL_SESS_HIT: 1481 return (ctx->stats.sess_hit); 1482 case SSL_CTRL_SESS_CB_HIT: 1483 return (ctx->stats.sess_cb_hit); 1484 case SSL_CTRL_SESS_MISSES: 1485 return (ctx->stats.sess_miss); 1486 case SSL_CTRL_SESS_TIMEOUTS: 1487 return (ctx->stats.sess_timeout); 1488 case SSL_CTRL_SESS_CACHE_FULL: 1489 return (ctx->stats.sess_cache_full); 1490 case SSL_CTRL_OPTIONS: 1491 return (ctx->options|=larg); 1492 case SSL_CTRL_CLEAR_OPTIONS: 1493 return (ctx->options&=~larg); 1494 case SSL_CTRL_MODE: 1495 return (ctx->mode|=larg); 1496 case SSL_CTRL_CLEAR_MODE: 1497 return (ctx->mode&=~larg); 1498 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1499 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1500 return (0); 1501 ctx->max_send_fragment = larg; 1502 return (1); 1503 default: 1504 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1505 } 1506 } 1507 LSSL_ALIAS(SSL_CTX_ctrl); 1508 1509 long 1510 SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1511 { 1512 switch (cmd) { 1513 case SSL_CTRL_SET_MSG_CALLBACK: 1514 ctx->msg_callback = (ssl_msg_callback_fn *)fp; 1515 return (1); 1516 1517 default: 1518 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1519 } 1520 } 1521 LSSL_ALIAS(SSL_CTX_callback_ctrl); 1522 1523 int 1524 ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1525 { 1526 long l; 1527 1528 l = a->id - b->id; 1529 if (l == 0L) 1530 return (0); 1531 else 1532 return ((l > 0) ? 1:-1); 1533 } 1534 1535 STACK_OF(SSL_CIPHER) * 1536 SSL_get_ciphers(const SSL *s) 1537 { 1538 if (s == NULL) 1539 return (NULL); 1540 if (s->cipher_list != NULL) 1541 return (s->cipher_list); 1542 1543 return (s->ctx->cipher_list); 1544 } 1545 LSSL_ALIAS(SSL_get_ciphers); 1546 1547 STACK_OF(SSL_CIPHER) * 1548 SSL_get_client_ciphers(const SSL *s) 1549 { 1550 if (s == NULL || s->session == NULL || !s->server) 1551 return NULL; 1552 return s->session->ciphers; 1553 } 1554 LSSL_ALIAS(SSL_get_client_ciphers); 1555 1556 STACK_OF(SSL_CIPHER) * 1557 SSL_get1_supported_ciphers(SSL *s) 1558 { 1559 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers; 1560 SSL_CIPHER *cipher; 1561 uint16_t min_vers, max_vers; 1562 int i; 1563 1564 if (s == NULL) 1565 return NULL; 1566 if (!ssl_supported_tls_version_range(s, &min_vers, &max_vers)) 1567 return NULL; 1568 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1569 return NULL; 1570 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL) 1571 return NULL; 1572 1573 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1574 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL) 1575 goto err; 1576 if (!ssl_cipher_allowed_in_tls_version_range(cipher, min_vers, 1577 max_vers)) 1578 continue; 1579 if (!ssl_security_supported_cipher(s, cipher)) 1580 continue; 1581 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher)) 1582 goto err; 1583 } 1584 1585 if (sk_SSL_CIPHER_num(supported_ciphers) > 0) 1586 return supported_ciphers; 1587 1588 err: 1589 sk_SSL_CIPHER_free(supported_ciphers); 1590 return NULL; 1591 } 1592 LSSL_ALIAS(SSL_get1_supported_ciphers); 1593 1594 /* See if we have any ECC cipher suites. */ 1595 int 1596 ssl_has_ecc_ciphers(SSL *s) 1597 { 1598 STACK_OF(SSL_CIPHER) *ciphers; 1599 unsigned long alg_k, alg_a; 1600 SSL_CIPHER *cipher; 1601 int i; 1602 1603 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1604 return 0; 1605 1606 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1607 cipher = sk_SSL_CIPHER_value(ciphers, i); 1608 1609 alg_k = cipher->algorithm_mkey; 1610 alg_a = cipher->algorithm_auth; 1611 1612 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1613 return 1; 1614 } 1615 1616 return 0; 1617 } 1618 1619 /* The old interface to get the same thing as SSL_get_ciphers(). */ 1620 const char * 1621 SSL_get_cipher_list(const SSL *s, int n) 1622 { 1623 STACK_OF(SSL_CIPHER) *ciphers; 1624 const SSL_CIPHER *cipher; 1625 1626 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1627 return (NULL); 1628 if ((cipher = sk_SSL_CIPHER_value(ciphers, n)) == NULL) 1629 return (NULL); 1630 1631 return (cipher->name); 1632 } 1633 LSSL_ALIAS(SSL_get_cipher_list); 1634 1635 STACK_OF(SSL_CIPHER) * 1636 SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1637 { 1638 if (ctx == NULL) 1639 return NULL; 1640 return ctx->cipher_list; 1641 } 1642 LSSL_ALIAS(SSL_CTX_get_ciphers); 1643 1644 /* Specify the ciphers to be used by default by the SSL_CTX. */ 1645 int 1646 SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1647 { 1648 STACK_OF(SSL_CIPHER) *ciphers; 1649 1650 /* 1651 * ssl_create_cipher_list may return an empty stack if it was unable to 1652 * find a cipher matching the given rule string (for example if the 1653 * rule string specifies a cipher which has been disabled). This is not 1654 * an error as far as ssl_create_cipher_list is concerned, and hence 1655 * ctx->cipher_list has been updated. 1656 */ 1657 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1658 ctx->cipher_list_tls13, str, ctx->cert); 1659 if (ciphers == NULL) { 1660 return (0); 1661 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1662 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1663 return (0); 1664 } 1665 return (1); 1666 } 1667 LSSL_ALIAS(SSL_CTX_set_cipher_list); 1668 1669 int 1670 SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str) 1671 { 1672 if (!ssl_parse_ciphersuites(&ctx->cipher_list_tls13, str)) { 1673 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1674 return 0; 1675 } 1676 if (!ssl_merge_cipherlists(ctx->cipher_list, 1677 ctx->cipher_list_tls13, &ctx->cipher_list)) 1678 return 0; 1679 1680 return 1; 1681 } 1682 LSSL_ALIAS(SSL_CTX_set_ciphersuites); 1683 1684 /* Specify the ciphers to be used by the SSL. */ 1685 int 1686 SSL_set_cipher_list(SSL *s, const char *str) 1687 { 1688 STACK_OF(SSL_CIPHER) *ciphers, *ciphers_tls13; 1689 1690 if ((ciphers_tls13 = s->cipher_list_tls13) == NULL) 1691 ciphers_tls13 = s->ctx->cipher_list_tls13; 1692 1693 /* See comment in SSL_CTX_set_cipher_list. */ 1694 ciphers = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1695 ciphers_tls13, str, s->cert); 1696 if (ciphers == NULL) { 1697 return (0); 1698 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1699 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1700 return (0); 1701 } 1702 return (1); 1703 } 1704 LSSL_ALIAS(SSL_set_cipher_list); 1705 1706 int 1707 SSL_set_ciphersuites(SSL *s, const char *str) 1708 { 1709 STACK_OF(SSL_CIPHER) *ciphers; 1710 1711 if ((ciphers = s->cipher_list) == NULL) 1712 ciphers = s->ctx->cipher_list; 1713 1714 if (!ssl_parse_ciphersuites(&s->cipher_list_tls13, str)) { 1715 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1716 return (0); 1717 } 1718 if (!ssl_merge_cipherlists(ciphers, s->cipher_list_tls13, 1719 &s->cipher_list)) 1720 return 0; 1721 1722 return 1; 1723 } 1724 LSSL_ALIAS(SSL_set_ciphersuites); 1725 1726 char * 1727 SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1728 { 1729 STACK_OF(SSL_CIPHER) *client_ciphers, *server_ciphers; 1730 const SSL_CIPHER *cipher; 1731 size_t curlen = 0; 1732 char *end; 1733 int i; 1734 1735 if (!s->server || s->session == NULL || len < 2) 1736 return NULL; 1737 1738 if ((client_ciphers = s->session->ciphers) == NULL) 1739 return NULL; 1740 if ((server_ciphers = SSL_get_ciphers(s)) == NULL) 1741 return NULL; 1742 if (sk_SSL_CIPHER_num(client_ciphers) == 0 || 1743 sk_SSL_CIPHER_num(server_ciphers) == 0) 1744 return NULL; 1745 1746 buf[0] = '\0'; 1747 for (i = 0; i < sk_SSL_CIPHER_num(client_ciphers); i++) { 1748 cipher = sk_SSL_CIPHER_value(client_ciphers, i); 1749 1750 if (sk_SSL_CIPHER_find(server_ciphers, cipher) < 0) 1751 continue; 1752 1753 end = buf + curlen; 1754 if (strlcat(buf, cipher->name, len) >= len || 1755 (curlen = strlcat(buf, ":", len)) >= len) { 1756 /* remove truncated cipher from list */ 1757 *end = '\0'; 1758 break; 1759 } 1760 } 1761 /* remove trailing colon */ 1762 if ((end = strrchr(buf, ':')) != NULL) 1763 *end = '\0'; 1764 return buf; 1765 } 1766 LSSL_ALIAS(SSL_get_shared_ciphers); 1767 1768 /* 1769 * Return a servername extension value if provided in Client Hello, or NULL. 1770 * So far, only host_name types are defined (RFC 3546). 1771 */ 1772 const char * 1773 SSL_get_servername(const SSL *s, const int type) 1774 { 1775 if (type != TLSEXT_NAMETYPE_host_name) 1776 return (NULL); 1777 1778 return (s->session && !s->tlsext_hostname ? 1779 s->session->tlsext_hostname : 1780 s->tlsext_hostname); 1781 } 1782 LSSL_ALIAS(SSL_get_servername); 1783 1784 int 1785 SSL_get_servername_type(const SSL *s) 1786 { 1787 if (s->session && 1788 (!s->tlsext_hostname ? 1789 s->session->tlsext_hostname : s->tlsext_hostname)) 1790 return (TLSEXT_NAMETYPE_host_name); 1791 return (-1); 1792 } 1793 LSSL_ALIAS(SSL_get_servername_type); 1794 1795 /* 1796 * SSL_select_next_proto implements standard protocol selection. It is 1797 * expected that this function is called from the callback set by 1798 * SSL_CTX_set_alpn_select_cb. 1799 * 1800 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1801 * strings. The length byte itself is not included in the length. A byte 1802 * string of length 0 is invalid. No byte string may be truncated. 1803 * 1804 * It returns either: 1805 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1806 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1807 */ 1808 int 1809 SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1810 const unsigned char *server, unsigned int server_len, 1811 const unsigned char *client, unsigned int client_len) 1812 { 1813 unsigned int i, j; 1814 const unsigned char *result; 1815 int status = OPENSSL_NPN_UNSUPPORTED; 1816 1817 /* 1818 * For each protocol in server preference order, 1819 * see if we support it. 1820 */ 1821 for (i = 0; i < server_len; ) { 1822 for (j = 0; j < client_len; ) { 1823 if (server[i] == client[j] && 1824 memcmp(&server[i + 1], 1825 &client[j + 1], server[i]) == 0) { 1826 /* We found a match */ 1827 result = &server[i]; 1828 status = OPENSSL_NPN_NEGOTIATED; 1829 goto found; 1830 } 1831 j += client[j]; 1832 j++; 1833 } 1834 i += server[i]; 1835 i++; 1836 } 1837 1838 /* There's no overlap between our protocols and the server's list. */ 1839 result = client; 1840 status = OPENSSL_NPN_NO_OVERLAP; 1841 1842 found: 1843 *out = (unsigned char *) result + 1; 1844 *outlen = result[0]; 1845 return (status); 1846 } 1847 LSSL_ALIAS(SSL_select_next_proto); 1848 1849 /* SSL_get0_next_proto_negotiated is deprecated. */ 1850 void 1851 SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1852 unsigned int *len) 1853 { 1854 *data = NULL; 1855 *len = 0; 1856 } 1857 LSSL_ALIAS(SSL_get0_next_proto_negotiated); 1858 1859 /* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1860 void 1861 SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1862 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1863 { 1864 } 1865 LSSL_ALIAS(SSL_CTX_set_next_protos_advertised_cb); 1866 1867 /* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1868 void 1869 SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1870 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1871 unsigned int inlen, void *arg), void *arg) 1872 { 1873 } 1874 LSSL_ALIAS(SSL_CTX_set_next_proto_select_cb); 1875 1876 /* 1877 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1878 * protocols, which must be in wire-format (i.e. a series of non-empty, 1879 * 8-bit length-prefixed strings). Returns 0 on success. 1880 */ 1881 int 1882 SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1883 unsigned int protos_len) 1884 { 1885 CBS cbs; 1886 int failed = 1; 1887 1888 if (protos == NULL) 1889 protos_len = 0; 1890 1891 CBS_init(&cbs, protos, protos_len); 1892 1893 if (protos_len > 0) { 1894 if (!tlsext_alpn_check_format(&cbs)) 1895 goto err; 1896 } 1897 1898 if (!CBS_stow(&cbs, &ctx->alpn_client_proto_list, 1899 &ctx->alpn_client_proto_list_len)) 1900 goto err; 1901 1902 failed = 0; 1903 1904 err: 1905 /* NOTE: Return values are the reverse of what you expect. */ 1906 return failed; 1907 } 1908 LSSL_ALIAS(SSL_CTX_set_alpn_protos); 1909 1910 /* 1911 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1912 * protocols, which must be in wire-format (i.e. a series of non-empty, 1913 * 8-bit length-prefixed strings). Returns 0 on success. 1914 */ 1915 int 1916 SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1917 unsigned int protos_len) 1918 { 1919 CBS cbs; 1920 int failed = 1; 1921 1922 if (protos == NULL) 1923 protos_len = 0; 1924 1925 CBS_init(&cbs, protos, protos_len); 1926 1927 if (protos_len > 0) { 1928 if (!tlsext_alpn_check_format(&cbs)) 1929 goto err; 1930 } 1931 1932 if (!CBS_stow(&cbs, &ssl->alpn_client_proto_list, 1933 &ssl->alpn_client_proto_list_len)) 1934 goto err; 1935 1936 failed = 0; 1937 1938 err: 1939 /* NOTE: Return values are the reverse of what you expect. */ 1940 return failed; 1941 } 1942 LSSL_ALIAS(SSL_set_alpn_protos); 1943 1944 /* 1945 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1946 * ClientHello processing in order to select an ALPN protocol from the 1947 * client's list of offered protocols. 1948 */ 1949 void 1950 SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1951 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1952 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1953 { 1954 ctx->alpn_select_cb = cb; 1955 ctx->alpn_select_cb_arg = arg; 1956 } 1957 LSSL_ALIAS(SSL_CTX_set_alpn_select_cb); 1958 1959 /* 1960 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1961 * it sets data to point to len bytes of protocol name (not including the 1962 * leading length-prefix byte). If the server didn't respond with* a negotiated 1963 * protocol then len will be zero. 1964 */ 1965 void 1966 SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1967 unsigned int *len) 1968 { 1969 *data = ssl->s3->alpn_selected; 1970 *len = ssl->s3->alpn_selected_len; 1971 } 1972 LSSL_ALIAS(SSL_get0_alpn_selected); 1973 1974 void 1975 SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb) 1976 { 1977 return; 1978 } 1979 LSSL_ALIAS(SSL_set_psk_use_session_callback); 1980 1981 int 1982 SSL_export_keying_material(SSL *s, unsigned char *out, size_t out_len, 1983 const char *label, size_t label_len, const unsigned char *context, 1984 size_t context_len, int use_context) 1985 { 1986 if (s->tls13 != NULL && s->version == TLS1_3_VERSION) { 1987 if (!use_context) { 1988 context = NULL; 1989 context_len = 0; 1990 } 1991 return tls13_exporter(s->tls13, label, label_len, context, 1992 context_len, out, out_len); 1993 } 1994 1995 return tls12_exporter(s, label, label_len, context, context_len, 1996 use_context, out, out_len); 1997 } 1998 LSSL_ALIAS(SSL_export_keying_material); 1999 2000 static unsigned long 2001 ssl_session_hash(const SSL_SESSION *a) 2002 { 2003 unsigned long l; 2004 2005 l = (unsigned long) 2006 ((unsigned int) a->session_id[0] )| 2007 ((unsigned int) a->session_id[1]<< 8L)| 2008 ((unsigned long)a->session_id[2]<<16L)| 2009 ((unsigned long)a->session_id[3]<<24L); 2010 return (l); 2011 } 2012 2013 /* 2014 * NB: If this function (or indeed the hash function which uses a sort of 2015 * coarser function than this one) is changed, ensure 2016 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 2017 * able to construct an SSL_SESSION that will collide with any existing session 2018 * with a matching session ID. 2019 */ 2020 static int 2021 ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 2022 { 2023 if (a->ssl_version != b->ssl_version) 2024 return (1); 2025 if (a->session_id_length != b->session_id_length) 2026 return (1); 2027 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 2028 return (1); 2029 return (0); 2030 } 2031 2032 /* 2033 * These wrapper functions should remain rather than redeclaring 2034 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 2035 * variable. The reason is that the functions aren't static, they're exposed via 2036 * ssl.h. 2037 */ 2038 static unsigned long 2039 ssl_session_LHASH_HASH(const void *arg) 2040 { 2041 const SSL_SESSION *a = arg; 2042 2043 return ssl_session_hash(a); 2044 } 2045 2046 static int 2047 ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 2048 { 2049 const SSL_SESSION *a = arg1; 2050 const SSL_SESSION *b = arg2; 2051 2052 return ssl_session_cmp(a, b); 2053 } 2054 2055 SSL_CTX * 2056 SSL_CTX_new(const SSL_METHOD *meth) 2057 { 2058 SSL_CTX *ret; 2059 2060 if (!OPENSSL_init_ssl(0, NULL)) { 2061 SSLerrorx(SSL_R_LIBRARY_BUG); 2062 return (NULL); 2063 } 2064 2065 if (meth == NULL) { 2066 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 2067 return (NULL); 2068 } 2069 2070 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 2071 SSLerrorx(ERR_R_MALLOC_FAILURE); 2072 return (NULL); 2073 } 2074 2075 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 2076 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 2077 goto err; 2078 } 2079 2080 ret->method = meth; 2081 ret->min_tls_version = meth->min_tls_version; 2082 ret->max_tls_version = meth->max_tls_version; 2083 ret->min_proto_version = 0; 2084 ret->max_proto_version = 0; 2085 ret->mode = SSL_MODE_AUTO_RETRY; 2086 2087 ret->cert_store = NULL; 2088 ret->session_cache_mode = SSL_SESS_CACHE_SERVER; 2089 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 2090 ret->session_cache_head = NULL; 2091 ret->session_cache_tail = NULL; 2092 2093 /* We take the system default */ 2094 ret->session_timeout = ssl_get_default_timeout(); 2095 2096 ret->new_session_cb = NULL; 2097 ret->remove_session_cb = NULL; 2098 ret->get_session_cb = NULL; 2099 ret->generate_session_id = NULL; 2100 2101 memset((char *)&ret->stats, 0, sizeof(ret->stats)); 2102 2103 ret->references = 1; 2104 ret->quiet_shutdown = 0; 2105 2106 ret->info_callback = NULL; 2107 2108 ret->app_verify_callback = NULL; 2109 ret->app_verify_arg = NULL; 2110 2111 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 2112 ret->read_ahead = 0; 2113 ret->msg_callback = NULL; 2114 ret->msg_callback_arg = NULL; 2115 ret->verify_mode = SSL_VERIFY_NONE; 2116 ret->sid_ctx_length = 0; 2117 ret->default_verify_callback = NULL; 2118 2119 if ((ret->cert = ssl_cert_new()) == NULL) 2120 goto err; 2121 2122 ret->default_passwd_callback = NULL; 2123 ret->default_passwd_callback_userdata = NULL; 2124 ret->client_cert_cb = NULL; 2125 ret->app_gen_cookie_cb = NULL; 2126 ret->app_verify_cookie_cb = NULL; 2127 2128 ret->sessions = lh_SSL_SESSION_new(); 2129 if (ret->sessions == NULL) 2130 goto err; 2131 ret->cert_store = X509_STORE_new(); 2132 if (ret->cert_store == NULL) 2133 goto err; 2134 2135 ssl_create_cipher_list(ret->method, &ret->cipher_list, 2136 NULL, SSL_DEFAULT_CIPHER_LIST, ret->cert); 2137 if (ret->cipher_list == NULL || 2138 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 2139 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 2140 goto err2; 2141 } 2142 2143 ret->param = X509_VERIFY_PARAM_new(); 2144 if (!ret->param) 2145 goto err; 2146 2147 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) 2148 goto err; 2149 2150 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 2151 2152 ret->extra_certs = NULL; 2153 2154 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 2155 2156 ret->tlsext_servername_callback = 0; 2157 ret->tlsext_servername_arg = NULL; 2158 2159 /* Setup RFC4507 ticket keys */ 2160 arc4random_buf(ret->tlsext_tick_key_name, 16); 2161 arc4random_buf(ret->tlsext_tick_hmac_key, 16); 2162 arc4random_buf(ret->tlsext_tick_aes_key, 16); 2163 2164 ret->tlsext_status_cb = 0; 2165 ret->tlsext_status_arg = NULL; 2166 2167 #ifndef OPENSSL_NO_ENGINE 2168 ret->client_cert_engine = NULL; 2169 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 2170 #define eng_strx(x) #x 2171 #define eng_str(x) eng_strx(x) 2172 /* Use specific client engine automatically... ignore errors */ 2173 { 2174 ENGINE *eng; 2175 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 2176 if (!eng) { 2177 ERR_clear_error(); 2178 ENGINE_load_builtin_engines(); 2179 eng = ENGINE_by_id(eng_str( 2180 OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 2181 } 2182 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 2183 ERR_clear_error(); 2184 } 2185 #endif 2186 #endif 2187 /* 2188 * Default is to connect to non-RI servers. When RI is more widely 2189 * deployed might change this. 2190 */ 2191 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; 2192 2193 return (ret); 2194 err: 2195 SSLerrorx(ERR_R_MALLOC_FAILURE); 2196 err2: 2197 SSL_CTX_free(ret); 2198 return (NULL); 2199 } 2200 LSSL_ALIAS(SSL_CTX_new); 2201 2202 void 2203 SSL_CTX_free(SSL_CTX *ctx) 2204 { 2205 int i; 2206 2207 if (ctx == NULL) 2208 return; 2209 2210 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 2211 if (i > 0) 2212 return; 2213 2214 X509_VERIFY_PARAM_free(ctx->param); 2215 2216 /* 2217 * Free internal session cache. However: the remove_cb() may reference 2218 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 2219 * after the sessions were flushed. 2220 * As the ex_data handling routines might also touch the session cache, 2221 * the most secure solution seems to be: empty (flush) the cache, then 2222 * free ex_data, then finally free the cache. 2223 * (See ticket [openssl.org #212].) 2224 */ 2225 if (ctx->sessions != NULL) 2226 SSL_CTX_flush_sessions(ctx, 0); 2227 2228 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->ex_data); 2229 2230 lh_SSL_SESSION_free(ctx->sessions); 2231 2232 X509_STORE_free(ctx->cert_store); 2233 sk_SSL_CIPHER_free(ctx->cipher_list); 2234 sk_SSL_CIPHER_free(ctx->cipher_list_tls13); 2235 ssl_cert_free(ctx->cert); 2236 sk_X509_NAME_pop_free(ctx->client_CA, X509_NAME_free); 2237 sk_X509_pop_free(ctx->extra_certs, X509_free); 2238 2239 #ifndef OPENSSL_NO_SRTP 2240 if (ctx->srtp_profiles) 2241 sk_SRTP_PROTECTION_PROFILE_free(ctx->srtp_profiles); 2242 #endif 2243 2244 #ifndef OPENSSL_NO_ENGINE 2245 ENGINE_finish(ctx->client_cert_engine); 2246 #endif 2247 2248 free(ctx->tlsext_ecpointformatlist); 2249 free(ctx->tlsext_supportedgroups); 2250 2251 free(ctx->alpn_client_proto_list); 2252 2253 free(ctx); 2254 } 2255 LSSL_ALIAS(SSL_CTX_free); 2256 2257 int 2258 SSL_CTX_up_ref(SSL_CTX *ctx) 2259 { 2260 int refs = CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 2261 return ((refs > 1) ? 1 : 0); 2262 } 2263 LSSL_ALIAS(SSL_CTX_up_ref); 2264 2265 pem_password_cb * 2266 SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 2267 { 2268 return (ctx->default_passwd_callback); 2269 } 2270 LSSL_ALIAS(SSL_CTX_get_default_passwd_cb); 2271 2272 void 2273 SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 2274 { 2275 ctx->default_passwd_callback = cb; 2276 } 2277 LSSL_ALIAS(SSL_CTX_set_default_passwd_cb); 2278 2279 void * 2280 SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 2281 { 2282 return ctx->default_passwd_callback_userdata; 2283 } 2284 LSSL_ALIAS(SSL_CTX_get_default_passwd_cb_userdata); 2285 2286 void 2287 SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 2288 { 2289 ctx->default_passwd_callback_userdata = u; 2290 } 2291 LSSL_ALIAS(SSL_CTX_set_default_passwd_cb_userdata); 2292 2293 void 2294 SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, 2295 int (*cb)(X509_STORE_CTX *, void *), void *arg) 2296 { 2297 ctx->app_verify_callback = cb; 2298 ctx->app_verify_arg = arg; 2299 } 2300 LSSL_ALIAS(SSL_CTX_set_cert_verify_callback); 2301 2302 void 2303 SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 2304 { 2305 ctx->verify_mode = mode; 2306 ctx->default_verify_callback = cb; 2307 } 2308 LSSL_ALIAS(SSL_CTX_set_verify); 2309 2310 void 2311 SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 2312 { 2313 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 2314 } 2315 LSSL_ALIAS(SSL_CTX_set_verify_depth); 2316 2317 void 2318 ssl_set_cert_masks(SSL_CERT *c, const SSL_CIPHER *cipher) 2319 { 2320 unsigned long mask_a, mask_k; 2321 SSL_CERT_PKEY *cpk; 2322 2323 if (c == NULL) 2324 return; 2325 2326 mask_a = SSL_aNULL | SSL_aTLS1_3; 2327 mask_k = SSL_kECDHE | SSL_kTLS1_3; 2328 2329 if (c->dhe_params != NULL || c->dhe_params_cb != NULL || 2330 c->dhe_params_auto != 0) 2331 mask_k |= SSL_kDHE; 2332 2333 cpk = &(c->pkeys[SSL_PKEY_ECC]); 2334 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2335 /* Key usage, if present, must allow signing. */ 2336 if (X509_get_key_usage(cpk->x509) & X509v3_KU_DIGITAL_SIGNATURE) 2337 mask_a |= SSL_aECDSA; 2338 } 2339 2340 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 2341 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2342 mask_k |= SSL_kGOST; 2343 mask_a |= SSL_aGOST01; 2344 } 2345 2346 cpk = &(c->pkeys[SSL_PKEY_RSA]); 2347 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2348 mask_a |= SSL_aRSA; 2349 mask_k |= SSL_kRSA; 2350 } 2351 2352 c->mask_k = mask_k; 2353 c->mask_a = mask_a; 2354 c->valid = 1; 2355 } 2356 2357 /* See if this handshake is using an ECC cipher suite. */ 2358 int 2359 ssl_using_ecc_cipher(SSL *s) 2360 { 2361 unsigned long alg_a, alg_k; 2362 2363 alg_a = s->s3->hs.cipher->algorithm_auth; 2364 alg_k = s->s3->hs.cipher->algorithm_mkey; 2365 2366 return s->session->tlsext_ecpointformatlist != NULL && 2367 s->session->tlsext_ecpointformatlist_length > 0 && 2368 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 2369 } 2370 2371 int 2372 ssl_check_srvr_ecc_cert_and_alg(SSL *s, X509 *x) 2373 { 2374 const SSL_CIPHER *cs = s->s3->hs.cipher; 2375 unsigned long alg_a; 2376 2377 alg_a = cs->algorithm_auth; 2378 2379 if (alg_a & SSL_aECDSA) { 2380 /* Key usage, if present, must allow signing. */ 2381 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { 2382 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2383 return (0); 2384 } 2385 } 2386 2387 return (1); 2388 } 2389 2390 SSL_CERT_PKEY * 2391 ssl_get_server_send_pkey(const SSL *s) 2392 { 2393 unsigned long alg_a; 2394 SSL_CERT *c; 2395 int i; 2396 2397 c = s->cert; 2398 ssl_set_cert_masks(c, s->s3->hs.cipher); 2399 2400 alg_a = s->s3->hs.cipher->algorithm_auth; 2401 2402 if (alg_a & SSL_aECDSA) { 2403 i = SSL_PKEY_ECC; 2404 } else if (alg_a & SSL_aRSA) { 2405 i = SSL_PKEY_RSA; 2406 } else if (alg_a & SSL_aGOST01) { 2407 i = SSL_PKEY_GOST01; 2408 } else { /* if (alg_a & SSL_aNULL) */ 2409 SSLerror(s, ERR_R_INTERNAL_ERROR); 2410 return (NULL); 2411 } 2412 2413 return (c->pkeys + i); 2414 } 2415 2416 EVP_PKEY * 2417 ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2418 const struct ssl_sigalg **sap) 2419 { 2420 const struct ssl_sigalg *sigalg = NULL; 2421 EVP_PKEY *pkey = NULL; 2422 unsigned long alg_a; 2423 SSL_CERT *c; 2424 int idx = -1; 2425 2426 alg_a = cipher->algorithm_auth; 2427 c = s->cert; 2428 2429 if (alg_a & SSL_aRSA) { 2430 idx = SSL_PKEY_RSA; 2431 } else if ((alg_a & SSL_aECDSA) && 2432 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2433 idx = SSL_PKEY_ECC; 2434 if (idx == -1) { 2435 SSLerror(s, ERR_R_INTERNAL_ERROR); 2436 return (NULL); 2437 } 2438 2439 pkey = c->pkeys[idx].privatekey; 2440 if ((sigalg = ssl_sigalg_select(s, pkey)) == NULL) { 2441 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2442 return (NULL); 2443 } 2444 *pmd = sigalg->md(); 2445 *sap = sigalg; 2446 2447 return (pkey); 2448 } 2449 2450 size_t 2451 ssl_dhe_params_auto_key_bits(SSL *s) 2452 { 2453 SSL_CERT_PKEY *cpk; 2454 int key_bits; 2455 2456 if (s->cert->dhe_params_auto == 2) { 2457 key_bits = 1024; 2458 } else if (s->s3->hs.cipher->algorithm_auth & SSL_aNULL) { 2459 key_bits = 1024; 2460 if (s->s3->hs.cipher->strength_bits == 256) 2461 key_bits = 3072; 2462 } else { 2463 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2464 return 0; 2465 if (cpk->privatekey == NULL || 2466 EVP_PKEY_get0_RSA(cpk->privatekey) == NULL) 2467 return 0; 2468 if ((key_bits = EVP_PKEY_bits(cpk->privatekey)) <= 0) 2469 return 0; 2470 } 2471 2472 return key_bits; 2473 } 2474 2475 static int 2476 ssl_should_update_external_cache(SSL *s, int mode) 2477 { 2478 int cache_mode; 2479 2480 cache_mode = s->session_ctx->session_cache_mode; 2481 2482 /* Don't cache if mode says not to */ 2483 if ((cache_mode & mode) == 0) 2484 return 0; 2485 2486 /* if it is not already cached, cache it */ 2487 if (!s->hit) 2488 return 1; 2489 2490 /* If it's TLS 1.3, do it to match OpenSSL */ 2491 if (s->s3->hs.negotiated_tls_version >= TLS1_3_VERSION) 2492 return 1; 2493 2494 return 0; 2495 } 2496 2497 static int 2498 ssl_should_update_internal_cache(SSL *s, int mode) 2499 { 2500 int cache_mode; 2501 2502 cache_mode = s->session_ctx->session_cache_mode; 2503 2504 /* Don't cache if mode says not to */ 2505 if ((cache_mode & mode) == 0) 2506 return 0; 2507 2508 /* If it is already cached, don't cache it again */ 2509 if (s->hit) 2510 return 0; 2511 2512 if ((cache_mode & SSL_SESS_CACHE_NO_INTERNAL_STORE) != 0) 2513 return 0; 2514 2515 /* If we are lesser than TLS 1.3, Cache it. */ 2516 if (s->s3->hs.negotiated_tls_version < TLS1_3_VERSION) 2517 return 1; 2518 2519 /* Below this we consider TLS 1.3 or later */ 2520 2521 /* If it's not a server, add it? OpenSSL does this. */ 2522 if (!s->server) 2523 return 1; 2524 2525 /* XXX if we support early data / PSK need to add */ 2526 2527 /* 2528 * If we have the remove session callback, we will want 2529 * to know about this even if it's a stateless ticket 2530 * from 1.3 so we can know when it is removed. 2531 */ 2532 if (s->session_ctx->remove_session_cb != NULL) 2533 return 1; 2534 2535 /* If we have set OP_NO_TICKET, cache it. */ 2536 if ((s->options & SSL_OP_NO_TICKET) != 0) 2537 return 1; 2538 2539 /* Otherwise do not cache */ 2540 return 0; 2541 } 2542 2543 void 2544 ssl_update_cache(SSL *s, int mode) 2545 { 2546 int cache_mode, do_callback; 2547 2548 if (s->session->session_id_length == 0) 2549 return; 2550 2551 cache_mode = s->session_ctx->session_cache_mode; 2552 do_callback = ssl_should_update_external_cache(s, mode); 2553 2554 if (ssl_should_update_internal_cache(s, mode)) { 2555 /* 2556 * XXX should we fail if the add to the internal cache 2557 * fails? OpenSSL doesn't care.. 2558 */ 2559 (void) SSL_CTX_add_session(s->session_ctx, s->session); 2560 } 2561 2562 /* 2563 * Update the "external cache" by calling the new session 2564 * callback if present, even with TLS 1.3 without early data 2565 * "because some application just want to know about the 2566 * creation of a session and aren't doing a full cache". 2567 * Apparently, if they are doing a full cache, they'll have 2568 * some fun, but we endeavour to give application writers the 2569 * same glorious experience they expect from OpenSSL which 2570 * does it this way. 2571 */ 2572 if (do_callback && s->session_ctx->new_session_cb != NULL) { 2573 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2574 if (!s->session_ctx->new_session_cb(s, s->session)) 2575 SSL_SESSION_free(s->session); 2576 } 2577 2578 /* Auto flush every 255 connections. */ 2579 if (!(cache_mode & SSL_SESS_CACHE_NO_AUTO_CLEAR) && 2580 (cache_mode & mode) != 0) { 2581 int connections; 2582 if (mode & SSL_SESS_CACHE_CLIENT) 2583 connections = s->session_ctx->stats.sess_connect_good; 2584 else 2585 connections = s->session_ctx->stats.sess_accept_good; 2586 if ((connections & 0xff) == 0xff) 2587 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2588 } 2589 } 2590 2591 const SSL_METHOD * 2592 SSL_get_ssl_method(SSL *s) 2593 { 2594 return (s->method); 2595 } 2596 LSSL_ALIAS(SSL_get_ssl_method); 2597 2598 int 2599 SSL_set_ssl_method(SSL *s, const SSL_METHOD *method) 2600 { 2601 int (*handshake_func)(SSL *) = NULL; 2602 int ret = 1; 2603 2604 if (s->method == method) 2605 return (ret); 2606 2607 if (s->handshake_func == s->method->ssl_connect) 2608 handshake_func = method->ssl_connect; 2609 else if (s->handshake_func == s->method->ssl_accept) 2610 handshake_func = method->ssl_accept; 2611 2612 if (s->method->version == method->version) { 2613 s->method = method; 2614 } else { 2615 s->method->ssl_free(s); 2616 s->method = method; 2617 ret = s->method->ssl_new(s); 2618 } 2619 s->handshake_func = handshake_func; 2620 2621 return (ret); 2622 } 2623 LSSL_ALIAS(SSL_set_ssl_method); 2624 2625 int 2626 SSL_get_error(const SSL *s, int i) 2627 { 2628 unsigned long l; 2629 int reason; 2630 BIO *bio; 2631 2632 if (i > 0) 2633 return (SSL_ERROR_NONE); 2634 2635 /* 2636 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2637 * etc, where we do encode the error. 2638 */ 2639 if ((l = ERR_peek_error()) != 0) { 2640 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2641 return (SSL_ERROR_SYSCALL); 2642 else 2643 return (SSL_ERROR_SSL); 2644 } 2645 2646 if (SSL_want_read(s)) { 2647 bio = SSL_get_rbio(s); 2648 if (BIO_should_read(bio)) { 2649 return (SSL_ERROR_WANT_READ); 2650 } else if (BIO_should_write(bio)) { 2651 /* 2652 * This one doesn't make too much sense... We never 2653 * try to write to the rbio, and an application 2654 * program where rbio and wbio are separate couldn't 2655 * even know what it should wait for. However if we 2656 * ever set s->rwstate incorrectly (so that we have 2657 * SSL_want_read(s) instead of SSL_want_write(s)) 2658 * and rbio and wbio *are* the same, this test works 2659 * around that bug; so it might be safer to keep it. 2660 */ 2661 return (SSL_ERROR_WANT_WRITE); 2662 } else if (BIO_should_io_special(bio)) { 2663 reason = BIO_get_retry_reason(bio); 2664 if (reason == BIO_RR_CONNECT) 2665 return (SSL_ERROR_WANT_CONNECT); 2666 else if (reason == BIO_RR_ACCEPT) 2667 return (SSL_ERROR_WANT_ACCEPT); 2668 else 2669 return (SSL_ERROR_SYSCALL); /* unknown */ 2670 } 2671 } 2672 2673 if (SSL_want_write(s)) { 2674 bio = SSL_get_wbio(s); 2675 if (BIO_should_write(bio)) { 2676 return (SSL_ERROR_WANT_WRITE); 2677 } else if (BIO_should_read(bio)) { 2678 /* 2679 * See above (SSL_want_read(s) with 2680 * BIO_should_write(bio)) 2681 */ 2682 return (SSL_ERROR_WANT_READ); 2683 } else if (BIO_should_io_special(bio)) { 2684 reason = BIO_get_retry_reason(bio); 2685 if (reason == BIO_RR_CONNECT) 2686 return (SSL_ERROR_WANT_CONNECT); 2687 else if (reason == BIO_RR_ACCEPT) 2688 return (SSL_ERROR_WANT_ACCEPT); 2689 else 2690 return (SSL_ERROR_SYSCALL); 2691 } 2692 } 2693 2694 if (SSL_want_x509_lookup(s)) 2695 return (SSL_ERROR_WANT_X509_LOOKUP); 2696 2697 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2698 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2699 return (SSL_ERROR_ZERO_RETURN); 2700 2701 return (SSL_ERROR_SYSCALL); 2702 } 2703 LSSL_ALIAS(SSL_get_error); 2704 2705 int 2706 SSL_CTX_set_quic_method(SSL_CTX *ctx, const SSL_QUIC_METHOD *quic_method) 2707 { 2708 if (ctx->method->dtls) 2709 return 0; 2710 2711 ctx->quic_method = quic_method; 2712 2713 return 1; 2714 } 2715 LSSL_ALIAS(SSL_CTX_set_quic_method); 2716 2717 int 2718 SSL_set_quic_method(SSL *ssl, const SSL_QUIC_METHOD *quic_method) 2719 { 2720 if (ssl->method->dtls) 2721 return 0; 2722 2723 ssl->quic_method = quic_method; 2724 2725 return 1; 2726 } 2727 LSSL_ALIAS(SSL_set_quic_method); 2728 2729 size_t 2730 SSL_quic_max_handshake_flight_len(const SSL *ssl, 2731 enum ssl_encryption_level_t level) 2732 { 2733 size_t flight_len; 2734 2735 /* Limit flights to 16K when there are no large certificate messages. */ 2736 flight_len = 16384; 2737 2738 switch (level) { 2739 case ssl_encryption_initial: 2740 return flight_len; 2741 2742 case ssl_encryption_early_data: 2743 /* QUIC does not send EndOfEarlyData. */ 2744 return 0; 2745 2746 case ssl_encryption_handshake: 2747 if (ssl->server) { 2748 /* 2749 * Servers may receive Certificate message if configured 2750 * to request client certificates. 2751 */ 2752 if ((SSL_get_verify_mode(ssl) & SSL_VERIFY_PEER) != 0 && 2753 ssl->max_cert_list > flight_len) 2754 flight_len = ssl->max_cert_list; 2755 } else { 2756 /* 2757 * Clients may receive both Certificate message and a 2758 * CertificateRequest message. 2759 */ 2760 if (ssl->max_cert_list * 2 > flight_len) 2761 flight_len = ssl->max_cert_list * 2; 2762 } 2763 return flight_len; 2764 case ssl_encryption_application: 2765 /* 2766 * Note there is not actually a bound on the number of 2767 * NewSessionTickets one may send in a row. This level may need 2768 * more involved flow control. 2769 */ 2770 return flight_len; 2771 } 2772 2773 return 0; 2774 } 2775 LSSL_ALIAS(SSL_quic_max_handshake_flight_len); 2776 2777 enum ssl_encryption_level_t 2778 SSL_quic_read_level(const SSL *ssl) 2779 { 2780 return ssl->s3->hs.tls13.quic_read_level; 2781 } 2782 LSSL_ALIAS(SSL_quic_read_level); 2783 2784 enum ssl_encryption_level_t 2785 SSL_quic_write_level(const SSL *ssl) 2786 { 2787 return ssl->s3->hs.tls13.quic_write_level; 2788 } 2789 LSSL_ALIAS(SSL_quic_write_level); 2790 2791 int 2792 SSL_provide_quic_data(SSL *ssl, enum ssl_encryption_level_t level, 2793 const uint8_t *data, size_t len) 2794 { 2795 if (!SSL_is_quic(ssl)) { 2796 SSLerror(ssl, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2797 return 0; 2798 } 2799 2800 if (level != SSL_quic_read_level(ssl)) { 2801 SSLerror(ssl, SSL_R_WRONG_ENCRYPTION_LEVEL_RECEIVED); 2802 return 0; 2803 } 2804 2805 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) { 2806 ssl->s3->hs.tls13.quic_read_buffer = tls_buffer_new(0); 2807 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) { 2808 SSLerror(ssl, ERR_R_MALLOC_FAILURE); 2809 return 0; 2810 } 2811 } 2812 2813 /* XXX - note that this does not currently downsize. */ 2814 tls_buffer_set_capacity_limit(ssl->s3->hs.tls13.quic_read_buffer, 2815 SSL_quic_max_handshake_flight_len(ssl, level)); 2816 2817 /* 2818 * XXX - an append that fails due to exceeding capacity should set 2819 * SSL_R_EXCESSIVE_MESSAGE_SIZE. 2820 */ 2821 return tls_buffer_append(ssl->s3->hs.tls13.quic_read_buffer, data, len); 2822 } 2823 LSSL_ALIAS(SSL_provide_quic_data); 2824 2825 int 2826 SSL_process_quic_post_handshake(SSL *ssl) 2827 { 2828 /* XXX - this needs to run PHH received. */ 2829 return 1; 2830 } 2831 LSSL_ALIAS(SSL_process_quic_post_handshake); 2832 2833 int 2834 SSL_do_handshake(SSL *s) 2835 { 2836 if (s->handshake_func == NULL) { 2837 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2838 return (-1); 2839 } 2840 2841 s->method->ssl_renegotiate_check(s); 2842 2843 if (!SSL_in_init(s) && !SSL_in_before(s)) 2844 return 1; 2845 2846 return s->handshake_func(s); 2847 } 2848 LSSL_ALIAS(SSL_do_handshake); 2849 2850 /* 2851 * For the next 2 functions, SSL_clear() sets shutdown and so 2852 * one of these calls will reset it 2853 */ 2854 void 2855 SSL_set_accept_state(SSL *s) 2856 { 2857 s->server = 1; 2858 s->shutdown = 0; 2859 s->s3->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2860 s->handshake_func = s->method->ssl_accept; 2861 ssl_clear_cipher_state(s); 2862 } 2863 LSSL_ALIAS(SSL_set_accept_state); 2864 2865 void 2866 SSL_set_connect_state(SSL *s) 2867 { 2868 s->server = 0; 2869 s->shutdown = 0; 2870 s->s3->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2871 s->handshake_func = s->method->ssl_connect; 2872 ssl_clear_cipher_state(s); 2873 } 2874 LSSL_ALIAS(SSL_set_connect_state); 2875 2876 int 2877 ssl_undefined_function(SSL *s) 2878 { 2879 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2880 return (0); 2881 } 2882 2883 int 2884 ssl_undefined_void_function(void) 2885 { 2886 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2887 return (0); 2888 } 2889 2890 int 2891 ssl_undefined_const_function(const SSL *s) 2892 { 2893 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2894 return (0); 2895 } 2896 2897 const char * 2898 ssl_version_string(int ver) 2899 { 2900 switch (ver) { 2901 case TLS1_VERSION: 2902 return (SSL_TXT_TLSV1); 2903 case TLS1_1_VERSION: 2904 return (SSL_TXT_TLSV1_1); 2905 case TLS1_2_VERSION: 2906 return (SSL_TXT_TLSV1_2); 2907 case TLS1_3_VERSION: 2908 return (SSL_TXT_TLSV1_3); 2909 case DTLS1_VERSION: 2910 return (SSL_TXT_DTLS1); 2911 case DTLS1_2_VERSION: 2912 return (SSL_TXT_DTLS1_2); 2913 default: 2914 return ("unknown"); 2915 } 2916 } 2917 2918 const char * 2919 SSL_get_version(const SSL *s) 2920 { 2921 return ssl_version_string(s->version); 2922 } 2923 LSSL_ALIAS(SSL_get_version); 2924 2925 SSL * 2926 SSL_dup(SSL *s) 2927 { 2928 STACK_OF(X509_NAME) *sk; 2929 X509_NAME *xn; 2930 SSL *ret; 2931 int i; 2932 2933 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2934 goto err; 2935 2936 ret->version = s->version; 2937 ret->method = s->method; 2938 2939 if (s->session != NULL) { 2940 if (!SSL_copy_session_id(ret, s)) 2941 goto err; 2942 } else { 2943 /* 2944 * No session has been established yet, so we have to expect 2945 * that s->cert or ret->cert will be changed later -- 2946 * they should not both point to the same object, 2947 * and thus we can't use SSL_copy_session_id. 2948 */ 2949 2950 ret->method->ssl_free(ret); 2951 ret->method = s->method; 2952 ret->method->ssl_new(ret); 2953 2954 ssl_cert_free(ret->cert); 2955 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2956 goto err; 2957 2958 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2959 s->sid_ctx_length)) 2960 goto err; 2961 } 2962 2963 ret->options = s->options; 2964 ret->mode = s->mode; 2965 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2966 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2967 ret->msg_callback = s->msg_callback; 2968 ret->msg_callback_arg = s->msg_callback_arg; 2969 SSL_set_verify(ret, SSL_get_verify_mode(s), 2970 SSL_get_verify_callback(s)); 2971 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2972 ret->generate_session_id = s->generate_session_id; 2973 2974 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2975 2976 ret->debug = s->debug; 2977 2978 /* copy app data, a little dangerous perhaps */ 2979 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2980 &ret->ex_data, &s->ex_data)) 2981 goto err; 2982 2983 /* setup rbio, and wbio */ 2984 if (s->rbio != NULL) { 2985 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2986 goto err; 2987 } 2988 if (s->wbio != NULL) { 2989 if (s->wbio != s->rbio) { 2990 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2991 goto err; 2992 } else 2993 ret->wbio = ret->rbio; 2994 } 2995 ret->rwstate = s->rwstate; 2996 ret->in_handshake = s->in_handshake; 2997 ret->handshake_func = s->handshake_func; 2998 ret->server = s->server; 2999 ret->renegotiate = s->renegotiate; 3000 ret->new_session = s->new_session; 3001 ret->quiet_shutdown = s->quiet_shutdown; 3002 ret->shutdown = s->shutdown; 3003 /* SSL_dup does not really work at any state, though */ 3004 ret->s3->hs.state = s->s3->hs.state; 3005 ret->rstate = s->rstate; 3006 3007 /* 3008 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 3009 * ret->init_off 3010 */ 3011 ret->init_num = 0; 3012 3013 ret->hit = s->hit; 3014 3015 X509_VERIFY_PARAM_inherit(ret->param, s->param); 3016 3017 if (s->cipher_list != NULL) { 3018 if ((ret->cipher_list = 3019 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 3020 goto err; 3021 } 3022 if (s->cipher_list_tls13 != NULL) { 3023 if ((ret->cipher_list_tls13 = 3024 sk_SSL_CIPHER_dup(s->cipher_list_tls13)) == NULL) 3025 goto err; 3026 } 3027 3028 /* Dup the client_CA list */ 3029 if (s->client_CA != NULL) { 3030 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 3031 ret->client_CA = sk; 3032 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 3033 xn = sk_X509_NAME_value(sk, i); 3034 if (sk_X509_NAME_set(sk, i, 3035 X509_NAME_dup(xn)) == NULL) { 3036 X509_NAME_free(xn); 3037 goto err; 3038 } 3039 } 3040 } 3041 3042 return ret; 3043 err: 3044 SSL_free(ret); 3045 return NULL; 3046 } 3047 LSSL_ALIAS(SSL_dup); 3048 3049 void 3050 ssl_clear_cipher_state(SSL *s) 3051 { 3052 tls12_record_layer_clear_read_state(s->rl); 3053 tls12_record_layer_clear_write_state(s->rl); 3054 } 3055 3056 void 3057 ssl_info_callback(const SSL *s, int type, int value) 3058 { 3059 ssl_info_callback_fn *cb; 3060 3061 if ((cb = s->info_callback) == NULL) 3062 cb = s->ctx->info_callback; 3063 if (cb != NULL) 3064 cb(s, type, value); 3065 } 3066 3067 void 3068 ssl_msg_callback(SSL *s, int is_write, int content_type, 3069 const void *msg_buf, size_t msg_len) 3070 { 3071 if (s->msg_callback == NULL) 3072 return; 3073 3074 s->msg_callback(is_write, s->version, content_type, 3075 msg_buf, msg_len, s, s->msg_callback_arg); 3076 } 3077 3078 void 3079 ssl_msg_callback_cbs(SSL *s, int is_write, int content_type, CBS *cbs) 3080 { 3081 ssl_msg_callback(s, is_write, content_type, CBS_data(cbs), CBS_len(cbs)); 3082 } 3083 3084 /* Fix this function so that it takes an optional type parameter */ 3085 X509 * 3086 SSL_get_certificate(const SSL *s) 3087 { 3088 return (s->cert->key->x509); 3089 } 3090 LSSL_ALIAS(SSL_get_certificate); 3091 3092 /* Fix this function so that it takes an optional type parameter */ 3093 EVP_PKEY * 3094 SSL_get_privatekey(const SSL *s) 3095 { 3096 return (s->cert->key->privatekey); 3097 } 3098 LSSL_ALIAS(SSL_get_privatekey); 3099 3100 const SSL_CIPHER * 3101 SSL_get_current_cipher(const SSL *s) 3102 { 3103 if ((s->session != NULL) && (s->session->cipher != NULL)) 3104 return (s->session->cipher); 3105 return (NULL); 3106 } 3107 LSSL_ALIAS(SSL_get_current_cipher); 3108 const void * 3109 SSL_get_current_compression(SSL *s) 3110 { 3111 return (NULL); 3112 } 3113 LSSL_ALIAS(SSL_get_current_compression); 3114 3115 const void * 3116 SSL_get_current_expansion(SSL *s) 3117 { 3118 return (NULL); 3119 } 3120 LSSL_ALIAS(SSL_get_current_expansion); 3121 3122 size_t 3123 SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 3124 { 3125 size_t len = sizeof(s->s3->client_random); 3126 3127 if (out == NULL) 3128 return len; 3129 3130 if (len > max_out) 3131 len = max_out; 3132 3133 memcpy(out, s->s3->client_random, len); 3134 3135 return len; 3136 } 3137 LSSL_ALIAS(SSL_get_client_random); 3138 3139 size_t 3140 SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 3141 { 3142 size_t len = sizeof(s->s3->server_random); 3143 3144 if (out == NULL) 3145 return len; 3146 3147 if (len > max_out) 3148 len = max_out; 3149 3150 memcpy(out, s->s3->server_random, len); 3151 3152 return len; 3153 } 3154 LSSL_ALIAS(SSL_get_server_random); 3155 3156 int 3157 ssl_init_wbio_buffer(SSL *s, int push) 3158 { 3159 BIO *bbio; 3160 3161 if (s->bbio == NULL) { 3162 bbio = BIO_new(BIO_f_buffer()); 3163 if (bbio == NULL) 3164 return (0); 3165 s->bbio = bbio; 3166 } else { 3167 bbio = s->bbio; 3168 if (s->bbio == s->wbio) 3169 s->wbio = BIO_pop(s->wbio); 3170 } 3171 (void)BIO_reset(bbio); 3172 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 3173 if (!BIO_set_read_buffer_size(bbio, 1)) { 3174 SSLerror(s, ERR_R_BUF_LIB); 3175 return (0); 3176 } 3177 if (push) { 3178 if (s->wbio != bbio) 3179 s->wbio = BIO_push(bbio, s->wbio); 3180 } else { 3181 if (s->wbio == bbio) 3182 s->wbio = BIO_pop(bbio); 3183 } 3184 return (1); 3185 } 3186 3187 void 3188 ssl_free_wbio_buffer(SSL *s) 3189 { 3190 if (s == NULL) 3191 return; 3192 3193 if (s->bbio == NULL) 3194 return; 3195 3196 if (s->bbio == s->wbio) { 3197 /* remove buffering */ 3198 s->wbio = BIO_pop(s->wbio); 3199 } 3200 BIO_free(s->bbio); 3201 s->bbio = NULL; 3202 } 3203 3204 void 3205 SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 3206 { 3207 ctx->quiet_shutdown = mode; 3208 } 3209 LSSL_ALIAS(SSL_CTX_set_quiet_shutdown); 3210 3211 int 3212 SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 3213 { 3214 return (ctx->quiet_shutdown); 3215 } 3216 LSSL_ALIAS(SSL_CTX_get_quiet_shutdown); 3217 3218 void 3219 SSL_set_quiet_shutdown(SSL *s, int mode) 3220 { 3221 s->quiet_shutdown = mode; 3222 } 3223 LSSL_ALIAS(SSL_set_quiet_shutdown); 3224 3225 int 3226 SSL_get_quiet_shutdown(const SSL *s) 3227 { 3228 return (s->quiet_shutdown); 3229 } 3230 LSSL_ALIAS(SSL_get_quiet_shutdown); 3231 3232 void 3233 SSL_set_shutdown(SSL *s, int mode) 3234 { 3235 s->shutdown = mode; 3236 } 3237 LSSL_ALIAS(SSL_set_shutdown); 3238 3239 int 3240 SSL_get_shutdown(const SSL *s) 3241 { 3242 return (s->shutdown); 3243 } 3244 LSSL_ALIAS(SSL_get_shutdown); 3245 3246 int 3247 SSL_version(const SSL *s) 3248 { 3249 return (s->version); 3250 } 3251 LSSL_ALIAS(SSL_version); 3252 3253 SSL_CTX * 3254 SSL_get_SSL_CTX(const SSL *ssl) 3255 { 3256 return (ssl->ctx); 3257 } 3258 LSSL_ALIAS(SSL_get_SSL_CTX); 3259 3260 SSL_CTX * 3261 SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 3262 { 3263 SSL_CERT *new_cert; 3264 3265 if (ctx == NULL) 3266 ctx = ssl->initial_ctx; 3267 if (ssl->ctx == ctx) 3268 return (ssl->ctx); 3269 3270 if ((new_cert = ssl_cert_dup(ctx->cert)) == NULL) 3271 return NULL; 3272 ssl_cert_free(ssl->cert); 3273 ssl->cert = new_cert; 3274 3275 SSL_CTX_up_ref(ctx); 3276 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 3277 ssl->ctx = ctx; 3278 3279 return (ssl->ctx); 3280 } 3281 LSSL_ALIAS(SSL_set_SSL_CTX); 3282 3283 int 3284 SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 3285 { 3286 return (X509_STORE_set_default_paths(ctx->cert_store)); 3287 } 3288 LSSL_ALIAS(SSL_CTX_set_default_verify_paths); 3289 3290 int 3291 SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 3292 const char *CApath) 3293 { 3294 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 3295 } 3296 LSSL_ALIAS(SSL_CTX_load_verify_locations); 3297 3298 int 3299 SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 3300 { 3301 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 3302 } 3303 LSSL_ALIAS(SSL_CTX_load_verify_mem); 3304 3305 void 3306 SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 3307 { 3308 ssl->info_callback = cb; 3309 } 3310 LSSL_ALIAS(SSL_set_info_callback); 3311 3312 void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 3313 { 3314 return (ssl->info_callback); 3315 } 3316 LSSL_ALIAS(SSL_get_info_callback); 3317 3318 int 3319 SSL_state(const SSL *ssl) 3320 { 3321 return (ssl->s3->hs.state); 3322 } 3323 LSSL_ALIAS(SSL_state); 3324 3325 void 3326 SSL_set_state(SSL *ssl, int state) 3327 { 3328 ssl->s3->hs.state = state; 3329 } 3330 LSSL_ALIAS(SSL_set_state); 3331 3332 void 3333 SSL_set_verify_result(SSL *ssl, long arg) 3334 { 3335 ssl->verify_result = arg; 3336 } 3337 LSSL_ALIAS(SSL_set_verify_result); 3338 3339 long 3340 SSL_get_verify_result(const SSL *ssl) 3341 { 3342 return (ssl->verify_result); 3343 } 3344 LSSL_ALIAS(SSL_get_verify_result); 3345 3346 int 3347 SSL_verify_client_post_handshake(SSL *ssl) 3348 { 3349 return 0; 3350 } 3351 LSSL_ALIAS(SSL_verify_client_post_handshake); 3352 3353 void 3354 SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val) 3355 { 3356 return; 3357 } 3358 LSSL_ALIAS(SSL_CTX_set_post_handshake_auth); 3359 3360 void 3361 SSL_set_post_handshake_auth(SSL *ssl, int val) 3362 { 3363 return; 3364 } 3365 LSSL_ALIAS(SSL_set_post_handshake_auth); 3366 3367 int 3368 SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3369 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3370 { 3371 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 3372 new_func, dup_func, free_func)); 3373 } 3374 LSSL_ALIAS(SSL_get_ex_new_index); 3375 3376 int 3377 SSL_set_ex_data(SSL *s, int idx, void *arg) 3378 { 3379 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3380 } 3381 LSSL_ALIAS(SSL_set_ex_data); 3382 3383 void * 3384 SSL_get_ex_data(const SSL *s, int idx) 3385 { 3386 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3387 } 3388 LSSL_ALIAS(SSL_get_ex_data); 3389 3390 int 3391 SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3392 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3393 { 3394 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 3395 new_func, dup_func, free_func)); 3396 } 3397 LSSL_ALIAS(SSL_CTX_get_ex_new_index); 3398 3399 int 3400 SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 3401 { 3402 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3403 } 3404 LSSL_ALIAS(SSL_CTX_set_ex_data); 3405 3406 void * 3407 SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 3408 { 3409 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3410 } 3411 LSSL_ALIAS(SSL_CTX_get_ex_data); 3412 3413 int 3414 ssl_ok(SSL *s) 3415 { 3416 return (1); 3417 } 3418 3419 X509_STORE * 3420 SSL_CTX_get_cert_store(const SSL_CTX *ctx) 3421 { 3422 return (ctx->cert_store); 3423 } 3424 LSSL_ALIAS(SSL_CTX_get_cert_store); 3425 3426 void 3427 SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 3428 { 3429 X509_STORE_free(ctx->cert_store); 3430 ctx->cert_store = store; 3431 } 3432 LSSL_ALIAS(SSL_CTX_set_cert_store); 3433 3434 X509 * 3435 SSL_CTX_get0_certificate(const SSL_CTX *ctx) 3436 { 3437 if (ctx->cert == NULL) 3438 return NULL; 3439 3440 return ctx->cert->key->x509; 3441 } 3442 LSSL_ALIAS(SSL_CTX_get0_certificate); 3443 3444 EVP_PKEY * 3445 SSL_CTX_get0_privatekey(const SSL_CTX *ctx) 3446 { 3447 if (ctx->cert == NULL) 3448 return NULL; 3449 3450 return ctx->cert->key->privatekey; 3451 } 3452 LSSL_ALIAS(SSL_CTX_get0_privatekey); 3453 3454 int 3455 SSL_want(const SSL *s) 3456 { 3457 return (s->rwstate); 3458 } 3459 LSSL_ALIAS(SSL_want); 3460 3461 void 3462 SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 3463 int keylength)) 3464 { 3465 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3466 } 3467 LSSL_ALIAS(SSL_CTX_set_tmp_rsa_callback); 3468 3469 void 3470 SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 3471 int keylength)) 3472 { 3473 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3474 } 3475 LSSL_ALIAS(SSL_set_tmp_rsa_callback); 3476 3477 void 3478 SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 3479 int keylength)) 3480 { 3481 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3482 } 3483 LSSL_ALIAS(SSL_CTX_set_tmp_dh_callback); 3484 3485 void 3486 SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 3487 int keylength)) 3488 { 3489 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3490 } 3491 LSSL_ALIAS(SSL_set_tmp_dh_callback); 3492 3493 void 3494 SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 3495 int is_export, int keylength)) 3496 { 3497 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 3498 (void (*)(void))ecdh); 3499 } 3500 LSSL_ALIAS(SSL_CTX_set_tmp_ecdh_callback); 3501 3502 void 3503 SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 3504 int keylength)) 3505 { 3506 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 3507 } 3508 LSSL_ALIAS(SSL_set_tmp_ecdh_callback); 3509 3510 3511 void 3512 SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 3513 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3514 { 3515 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 3516 (void (*)(void))cb); 3517 } 3518 LSSL_ALIAS(SSL_CTX_set_msg_callback); 3519 3520 void 3521 SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 3522 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3523 { 3524 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3525 } 3526 LSSL_ALIAS(SSL_set_msg_callback); 3527 3528 void 3529 SSL_set_debug(SSL *s, int debug) 3530 { 3531 s->debug = debug; 3532 } 3533 LSSL_ALIAS(SSL_set_debug); 3534 3535 int 3536 SSL_cache_hit(SSL *s) 3537 { 3538 return (s->hit); 3539 } 3540 LSSL_ALIAS(SSL_cache_hit); 3541 3542 int 3543 SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 3544 { 3545 return ctx->min_proto_version; 3546 } 3547 LSSL_ALIAS(SSL_CTX_get_min_proto_version); 3548 3549 int 3550 SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 3551 { 3552 return ssl_version_set_min(ctx->method, version, 3553 ctx->max_tls_version, &ctx->min_tls_version, 3554 &ctx->min_proto_version); 3555 } 3556 LSSL_ALIAS(SSL_CTX_set_min_proto_version); 3557 3558 int 3559 SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 3560 { 3561 return ctx->max_proto_version; 3562 } 3563 LSSL_ALIAS(SSL_CTX_get_max_proto_version); 3564 3565 int 3566 SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 3567 { 3568 return ssl_version_set_max(ctx->method, version, 3569 ctx->min_tls_version, &ctx->max_tls_version, 3570 &ctx->max_proto_version); 3571 } 3572 LSSL_ALIAS(SSL_CTX_set_max_proto_version); 3573 3574 int 3575 SSL_get_min_proto_version(SSL *ssl) 3576 { 3577 return ssl->min_proto_version; 3578 } 3579 LSSL_ALIAS(SSL_get_min_proto_version); 3580 3581 int 3582 SSL_set_min_proto_version(SSL *ssl, uint16_t version) 3583 { 3584 return ssl_version_set_min(ssl->method, version, 3585 ssl->max_tls_version, &ssl->min_tls_version, 3586 &ssl->min_proto_version); 3587 } 3588 LSSL_ALIAS(SSL_set_min_proto_version); 3589 int 3590 SSL_get_max_proto_version(SSL *ssl) 3591 { 3592 return ssl->max_proto_version; 3593 } 3594 LSSL_ALIAS(SSL_get_max_proto_version); 3595 3596 int 3597 SSL_set_max_proto_version(SSL *ssl, uint16_t version) 3598 { 3599 return ssl_version_set_max(ssl->method, version, 3600 ssl->min_tls_version, &ssl->max_tls_version, 3601 &ssl->max_proto_version); 3602 } 3603 LSSL_ALIAS(SSL_set_max_proto_version); 3604 3605 const SSL_METHOD * 3606 SSL_CTX_get_ssl_method(const SSL_CTX *ctx) 3607 { 3608 return ctx->method; 3609 } 3610 LSSL_ALIAS(SSL_CTX_get_ssl_method); 3611 3612 int 3613 SSL_CTX_get_security_level(const SSL_CTX *ctx) 3614 { 3615 return ctx->cert->security_level; 3616 } 3617 LSSL_ALIAS(SSL_CTX_get_security_level); 3618 3619 void 3620 SSL_CTX_set_security_level(SSL_CTX *ctx, int level) 3621 { 3622 ctx->cert->security_level = level; 3623 } 3624 LSSL_ALIAS(SSL_CTX_set_security_level); 3625 3626 int 3627 SSL_get_security_level(const SSL *ssl) 3628 { 3629 return ssl->cert->security_level; 3630 } 3631 LSSL_ALIAS(SSL_get_security_level); 3632 3633 void 3634 SSL_set_security_level(SSL *ssl, int level) 3635 { 3636 ssl->cert->security_level = level; 3637 } 3638 LSSL_ALIAS(SSL_set_security_level); 3639 3640 int 3641 SSL_is_quic(const SSL *ssl) 3642 { 3643 return ssl->quic_method != NULL; 3644 } 3645 LSSL_ALIAS(SSL_is_quic); 3646 3647 int 3648 SSL_set_quic_transport_params(SSL *ssl, const uint8_t *params, 3649 size_t params_len) 3650 { 3651 freezero(ssl->quic_transport_params, 3652 ssl->quic_transport_params_len); 3653 ssl->quic_transport_params = NULL; 3654 ssl->quic_transport_params_len = 0; 3655 3656 if ((ssl->quic_transport_params = malloc(params_len)) == NULL) 3657 return 0; 3658 3659 memcpy(ssl->quic_transport_params, params, params_len); 3660 ssl->quic_transport_params_len = params_len; 3661 3662 return 1; 3663 } 3664 LSSL_ALIAS(SSL_set_quic_transport_params); 3665 3666 void 3667 SSL_get_peer_quic_transport_params(const SSL *ssl, const uint8_t **out_params, 3668 size_t *out_params_len) 3669 { 3670 *out_params = ssl->s3->peer_quic_transport_params; 3671 *out_params_len = ssl->s3->peer_quic_transport_params_len; 3672 } 3673 LSSL_ALIAS(SSL_get_peer_quic_transport_params); 3674 3675 void 3676 SSL_set_quic_use_legacy_codepoint(SSL *ssl, int use_legacy) 3677 { 3678 /* Not supported. */ 3679 } 3680 LSSL_ALIAS(SSL_set_quic_use_legacy_codepoint); 3681 3682 static int 3683 ssl_cipher_id_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 3684 { 3685 SSL_CIPHER const *a = a_; 3686 SSL_CIPHER const *b = b_; 3687 return ssl_cipher_id_cmp(a, b); 3688 } 3689 3690 SSL_CIPHER * 3691 OBJ_bsearch_ssl_cipher_id(SSL_CIPHER *key, SSL_CIPHER const *base, int num) 3692 { 3693 return (SSL_CIPHER *)OBJ_bsearch_(key, base, num, sizeof(SSL_CIPHER), 3694 ssl_cipher_id_cmp_BSEARCH_CMP_FN); 3695 } 3696