ssl_lib.c revision 1.323
1/* $OpenBSD: ssl_lib.c,v 1.323 2024/04/15 16:00:05 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#include "bytestring.h" 158#include "dtls_local.h" 159#include "ssl_local.h" 160#include "ssl_sigalgs.h" 161#include "ssl_tlsext.h" 162#include "tls12_internal.h" 163 164int 165SSL_clear(SSL *s) 166{ 167 if (s->method == NULL) { 168 SSLerror(s, SSL_R_NO_METHOD_SPECIFIED); 169 return (0); 170 } 171 172 if (ssl_clear_bad_session(s)) { 173 SSL_SESSION_free(s->session); 174 s->session = NULL; 175 } 176 177 s->error = 0; 178 s->hit = 0; 179 s->shutdown = 0; 180 181 if (s->renegotiate) { 182 SSLerror(s, ERR_R_INTERNAL_ERROR); 183 return (0); 184 } 185 186 s->version = s->method->version; 187 s->client_version = s->version; 188 s->rwstate = SSL_NOTHING; 189 s->rstate = SSL_ST_READ_HEADER; 190 191 tls13_ctx_free(s->tls13); 192 s->tls13 = NULL; 193 194 ssl3_release_init_buffer(s); 195 196 ssl_clear_cipher_state(s); 197 198 s->first_packet = 0; 199 200 /* 201 * Check to see if we were changed into a different method, if 202 * so, revert back if we are not doing session-id reuse. 203 */ 204 if (!s->in_handshake && (s->session == NULL) && 205 (s->method != s->ctx->method)) { 206 s->method->ssl_free(s); 207 s->method = s->ctx->method; 208 if (!s->method->ssl_new(s)) 209 return (0); 210 } else 211 s->method->ssl_clear(s); 212 213 return (1); 214} 215LSSL_ALIAS(SSL_clear); 216 217/* Used to change an SSL_CTXs default SSL method type */ 218int 219SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 220{ 221 STACK_OF(SSL_CIPHER) *ciphers; 222 223 ctx->method = meth; 224 225 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 226 ctx->cipher_list_tls13, SSL_DEFAULT_CIPHER_LIST, 227 ctx->cert); 228 if (ciphers == NULL || sk_SSL_CIPHER_num(ciphers) <= 0) { 229 SSLerrorx(SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 230 return (0); 231 } 232 return (1); 233} 234LSSL_ALIAS(SSL_CTX_set_ssl_version); 235 236SSL * 237SSL_new(SSL_CTX *ctx) 238{ 239 SSL *s; 240 CBS cbs; 241 242 if (ctx == NULL) { 243 SSLerrorx(SSL_R_NULL_SSL_CTX); 244 return (NULL); 245 } 246 if (ctx->method == NULL) { 247 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 248 return (NULL); 249 } 250 251 if ((s = calloc(1, sizeof(*s))) == NULL) 252 goto err; 253 254 if ((s->rl = tls12_record_layer_new()) == NULL) 255 goto err; 256 257 s->min_tls_version = ctx->min_tls_version; 258 s->max_tls_version = ctx->max_tls_version; 259 s->min_proto_version = ctx->min_proto_version; 260 s->max_proto_version = ctx->max_proto_version; 261 262 s->options = ctx->options; 263 s->mode = ctx->mode; 264 s->max_cert_list = ctx->max_cert_list; 265 s->num_tickets = ctx->num_tickets; 266 267 if ((s->cert = ssl_cert_dup(ctx->cert)) == NULL) 268 goto err; 269 270 s->read_ahead = ctx->read_ahead; 271 s->msg_callback = ctx->msg_callback; 272 s->msg_callback_arg = ctx->msg_callback_arg; 273 s->verify_mode = ctx->verify_mode; 274 s->sid_ctx_length = ctx->sid_ctx_length; 275 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 276 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); 277 s->verify_callback = ctx->default_verify_callback; 278 s->generate_session_id = ctx->generate_session_id; 279 280 s->param = X509_VERIFY_PARAM_new(); 281 if (!s->param) 282 goto err; 283 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 284 s->quiet_shutdown = ctx->quiet_shutdown; 285 s->max_send_fragment = ctx->max_send_fragment; 286 287 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 288 s->ctx = ctx; 289 s->tlsext_debug_cb = NULL; 290 s->tlsext_debug_arg = NULL; 291 s->tlsext_ticket_expected = 0; 292 s->tlsext_status_type = -1; 293 s->tlsext_status_expected = 0; 294 s->tlsext_ocsp_ids = NULL; 295 s->tlsext_ocsp_exts = NULL; 296 s->tlsext_ocsp_resp = NULL; 297 s->tlsext_ocsp_resp_len = 0; 298 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 299 s->initial_ctx = ctx; 300 301 if (!tlsext_randomize_build_order(s)) 302 goto err; 303 304 if (ctx->tlsext_ecpointformatlist != NULL) { 305 s->tlsext_ecpointformatlist = 306 calloc(ctx->tlsext_ecpointformatlist_length, 307 sizeof(ctx->tlsext_ecpointformatlist[0])); 308 if (s->tlsext_ecpointformatlist == NULL) 309 goto err; 310 memcpy(s->tlsext_ecpointformatlist, 311 ctx->tlsext_ecpointformatlist, 312 ctx->tlsext_ecpointformatlist_length * 313 sizeof(ctx->tlsext_ecpointformatlist[0])); 314 s->tlsext_ecpointformatlist_length = 315 ctx->tlsext_ecpointformatlist_length; 316 } 317 if (ctx->tlsext_supportedgroups != NULL) { 318 s->tlsext_supportedgroups = 319 calloc(ctx->tlsext_supportedgroups_length, 320 sizeof(ctx->tlsext_supportedgroups[0])); 321 if (s->tlsext_supportedgroups == NULL) 322 goto err; 323 memcpy(s->tlsext_supportedgroups, 324 ctx->tlsext_supportedgroups, 325 ctx->tlsext_supportedgroups_length * 326 sizeof(ctx->tlsext_supportedgroups[0])); 327 s->tlsext_supportedgroups_length = 328 ctx->tlsext_supportedgroups_length; 329 } 330 331 CBS_init(&cbs, ctx->alpn_client_proto_list, 332 ctx->alpn_client_proto_list_len); 333 if (!CBS_stow(&cbs, &s->alpn_client_proto_list, 334 &s->alpn_client_proto_list_len)) 335 goto err; 336 337 s->verify_result = X509_V_OK; 338 339 s->method = ctx->method; 340 s->quic_method = ctx->quic_method; 341 342 if (!s->method->ssl_new(s)) 343 goto err; 344 345 s->references = 1; 346 s->server = ctx->method->server; 347 348 SSL_clear(s); 349 350 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 351 352 return (s); 353 354 err: 355 SSL_free(s); 356 SSLerrorx(ERR_R_MALLOC_FAILURE); 357 return (NULL); 358} 359LSSL_ALIAS(SSL_new); 360 361int 362SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 363 unsigned int sid_ctx_len) 364{ 365 if (sid_ctx_len > sizeof ctx->sid_ctx) { 366 SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 367 return (0); 368 } 369 ctx->sid_ctx_length = sid_ctx_len; 370 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 371 372 return (1); 373} 374LSSL_ALIAS(SSL_CTX_set_session_id_context); 375 376int 377SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 378 unsigned int sid_ctx_len) 379{ 380 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 381 SSLerror(ssl, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 382 return (0); 383 } 384 ssl->sid_ctx_length = sid_ctx_len; 385 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 386 387 return (1); 388} 389LSSL_ALIAS(SSL_set_session_id_context); 390 391int 392SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 393{ 394 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 395 ctx->generate_session_id = cb; 396 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 397 return (1); 398} 399LSSL_ALIAS(SSL_CTX_set_generate_session_id); 400 401int 402SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 403{ 404 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 405 ssl->generate_session_id = cb; 406 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 407 return (1); 408} 409LSSL_ALIAS(SSL_set_generate_session_id); 410 411int 412SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 413 unsigned int id_len) 414{ 415 /* 416 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 417 * shows how we can "construct" a session to give us the desired 418 * check - ie. to find if there's a session in the hash table 419 * that would conflict with any new session built out of this 420 * id/id_len and the ssl_version in use by this SSL. 421 */ 422 SSL_SESSION r, *p; 423 424 if (id_len > sizeof r.session_id) 425 return (0); 426 427 r.ssl_version = ssl->version; 428 r.session_id_length = id_len; 429 memcpy(r.session_id, id, id_len); 430 431 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 432 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r); 433 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 434 return (p != NULL); 435} 436LSSL_ALIAS(SSL_has_matching_session_id); 437 438int 439SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 440{ 441 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 442} 443LSSL_ALIAS(SSL_CTX_set_purpose); 444 445int 446SSL_set_purpose(SSL *s, int purpose) 447{ 448 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 449} 450LSSL_ALIAS(SSL_set_purpose); 451 452int 453SSL_CTX_set_trust(SSL_CTX *s, int trust) 454{ 455 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 456} 457LSSL_ALIAS(SSL_CTX_set_trust); 458 459int 460SSL_set_trust(SSL *s, int trust) 461{ 462 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 463} 464LSSL_ALIAS(SSL_set_trust); 465 466int 467SSL_set1_host(SSL *s, const char *hostname) 468{ 469 struct in_addr ina; 470 struct in6_addr in6a; 471 472 if (hostname != NULL && *hostname != '\0' && 473 (inet_pton(AF_INET, hostname, &ina) == 1 || 474 inet_pton(AF_INET6, hostname, &in6a) == 1)) 475 return X509_VERIFY_PARAM_set1_ip_asc(s->param, hostname); 476 else 477 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); 478} 479LSSL_ALIAS(SSL_set1_host); 480 481void 482SSL_set_hostflags(SSL *s, unsigned int flags) 483{ 484 X509_VERIFY_PARAM_set_hostflags(s->param, flags); 485} 486LSSL_ALIAS(SSL_set_hostflags); 487 488const char * 489SSL_get0_peername(SSL *s) 490{ 491 return X509_VERIFY_PARAM_get0_peername(s->param); 492} 493LSSL_ALIAS(SSL_get0_peername); 494 495X509_VERIFY_PARAM * 496SSL_CTX_get0_param(SSL_CTX *ctx) 497{ 498 return (ctx->param); 499} 500LSSL_ALIAS(SSL_CTX_get0_param); 501 502int 503SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 504{ 505 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 506} 507LSSL_ALIAS(SSL_CTX_set1_param); 508 509X509_VERIFY_PARAM * 510SSL_get0_param(SSL *ssl) 511{ 512 return (ssl->param); 513} 514LSSL_ALIAS(SSL_get0_param); 515 516int 517SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 518{ 519 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 520} 521LSSL_ALIAS(SSL_set1_param); 522 523void 524SSL_free(SSL *s) 525{ 526 int i; 527 528 if (s == NULL) 529 return; 530 531 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 532 if (i > 0) 533 return; 534 535 X509_VERIFY_PARAM_free(s->param); 536 537 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 538 539 if (s->bbio != NULL) { 540 /* If the buffering BIO is in place, pop it off */ 541 if (s->bbio == s->wbio) { 542 s->wbio = BIO_pop(s->wbio); 543 } 544 BIO_free(s->bbio); 545 s->bbio = NULL; 546 } 547 548 if (s->rbio != s->wbio) 549 BIO_free_all(s->rbio); 550 BIO_free_all(s->wbio); 551 552 tls13_ctx_free(s->tls13); 553 554 ssl3_release_init_buffer(s); 555 556 sk_SSL_CIPHER_free(s->cipher_list); 557 sk_SSL_CIPHER_free(s->cipher_list_tls13); 558 559 /* Make the next call work :-) */ 560 if (s->session != NULL) { 561 ssl_clear_bad_session(s); 562 SSL_SESSION_free(s->session); 563 } 564 565 ssl_clear_cipher_state(s); 566 567 ssl_cert_free(s->cert); 568 569 free(s->tlsext_build_order); 570 571 free(s->tlsext_hostname); 572 SSL_CTX_free(s->initial_ctx); 573 574 free(s->tlsext_ecpointformatlist); 575 free(s->tlsext_supportedgroups); 576 577 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 578 X509_EXTENSION_free); 579 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 580 free(s->tlsext_ocsp_resp); 581 582 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); 583 584 if (s->method != NULL) 585 s->method->ssl_free(s); 586 587 SSL_CTX_free(s->ctx); 588 589 free(s->alpn_client_proto_list); 590 591 free(s->quic_transport_params); 592 593#ifndef OPENSSL_NO_SRTP 594 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); 595#endif 596 597 tls12_record_layer_free(s->rl); 598 599 free(s); 600} 601LSSL_ALIAS(SSL_free); 602 603int 604SSL_up_ref(SSL *s) 605{ 606 return CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL) > 1; 607} 608LSSL_ALIAS(SSL_up_ref); 609 610void 611SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 612{ 613 /* If the output buffering BIO is still in place, remove it */ 614 if (s->bbio != NULL) { 615 if (s->wbio == s->bbio) { 616 s->wbio = BIO_next(s->wbio); 617 BIO_set_next(s->bbio, NULL); 618 } 619 } 620 621 if (s->rbio != rbio && s->rbio != s->wbio) 622 BIO_free_all(s->rbio); 623 if (s->wbio != wbio) 624 BIO_free_all(s->wbio); 625 s->rbio = rbio; 626 s->wbio = wbio; 627} 628LSSL_ALIAS(SSL_set_bio); 629 630BIO * 631SSL_get_rbio(const SSL *s) 632{ 633 return (s->rbio); 634} 635LSSL_ALIAS(SSL_get_rbio); 636 637void 638SSL_set0_rbio(SSL *s, BIO *rbio) 639{ 640 BIO_free_all(s->rbio); 641 s->rbio = rbio; 642} 643LSSL_ALIAS(SSL_set0_rbio); 644 645BIO * 646SSL_get_wbio(const SSL *s) 647{ 648 return (s->wbio); 649} 650LSSL_ALIAS(SSL_get_wbio); 651 652int 653SSL_get_fd(const SSL *s) 654{ 655 return (SSL_get_rfd(s)); 656} 657LSSL_ALIAS(SSL_get_fd); 658 659int 660SSL_get_rfd(const SSL *s) 661{ 662 int ret = -1; 663 BIO *b, *r; 664 665 b = SSL_get_rbio(s); 666 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 667 if (r != NULL) 668 BIO_get_fd(r, &ret); 669 return (ret); 670} 671LSSL_ALIAS(SSL_get_rfd); 672 673int 674SSL_get_wfd(const SSL *s) 675{ 676 int ret = -1; 677 BIO *b, *r; 678 679 b = SSL_get_wbio(s); 680 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 681 if (r != NULL) 682 BIO_get_fd(r, &ret); 683 return (ret); 684} 685LSSL_ALIAS(SSL_get_wfd); 686 687int 688SSL_set_fd(SSL *s, int fd) 689{ 690 int ret = 0; 691 BIO *bio = NULL; 692 693 bio = BIO_new(BIO_s_socket()); 694 695 if (bio == NULL) { 696 SSLerror(s, ERR_R_BUF_LIB); 697 goto err; 698 } 699 BIO_set_fd(bio, fd, BIO_NOCLOSE); 700 SSL_set_bio(s, bio, bio); 701 ret = 1; 702 err: 703 return (ret); 704} 705LSSL_ALIAS(SSL_set_fd); 706 707int 708SSL_set_wfd(SSL *s, int fd) 709{ 710 int ret = 0; 711 BIO *bio = NULL; 712 713 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 714 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 715 bio = BIO_new(BIO_s_socket()); 716 717 if (bio == NULL) { 718 SSLerror(s, ERR_R_BUF_LIB); 719 goto err; 720 } 721 BIO_set_fd(bio, fd, BIO_NOCLOSE); 722 SSL_set_bio(s, SSL_get_rbio(s), bio); 723 } else 724 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 725 ret = 1; 726 err: 727 return (ret); 728} 729LSSL_ALIAS(SSL_set_wfd); 730 731int 732SSL_set_rfd(SSL *s, int fd) 733{ 734 int ret = 0; 735 BIO *bio = NULL; 736 737 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 738 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 739 bio = BIO_new(BIO_s_socket()); 740 741 if (bio == NULL) { 742 SSLerror(s, ERR_R_BUF_LIB); 743 goto err; 744 } 745 BIO_set_fd(bio, fd, BIO_NOCLOSE); 746 SSL_set_bio(s, bio, SSL_get_wbio(s)); 747 } else 748 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 749 ret = 1; 750 err: 751 return (ret); 752} 753LSSL_ALIAS(SSL_set_rfd); 754 755 756/* return length of latest Finished message we sent, copy to 'buf' */ 757size_t 758SSL_get_finished(const SSL *s, void *buf, size_t count) 759{ 760 size_t ret; 761 762 ret = s->s3->hs.finished_len; 763 if (count > ret) 764 count = ret; 765 memcpy(buf, s->s3->hs.finished, count); 766 return (ret); 767} 768LSSL_ALIAS(SSL_get_finished); 769 770/* return length of latest Finished message we expected, copy to 'buf' */ 771size_t 772SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 773{ 774 size_t ret; 775 776 ret = s->s3->hs.peer_finished_len; 777 if (count > ret) 778 count = ret; 779 memcpy(buf, s->s3->hs.peer_finished, count); 780 return (ret); 781} 782LSSL_ALIAS(SSL_get_peer_finished); 783 784 785int 786SSL_get_verify_mode(const SSL *s) 787{ 788 return (s->verify_mode); 789} 790LSSL_ALIAS(SSL_get_verify_mode); 791 792int 793SSL_get_verify_depth(const SSL *s) 794{ 795 return (X509_VERIFY_PARAM_get_depth(s->param)); 796} 797LSSL_ALIAS(SSL_get_verify_depth); 798 799int 800(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 801{ 802 return (s->verify_callback); 803} 804LSSL_ALIAS(SSL_get_verify_callback); 805 806void 807SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) 808{ 809 ctx->keylog_callback = cb; 810} 811LSSL_ALIAS(SSL_CTX_set_keylog_callback); 812 813SSL_CTX_keylog_cb_func 814SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) 815{ 816 return (ctx->keylog_callback); 817} 818LSSL_ALIAS(SSL_CTX_get_keylog_callback); 819 820int 821SSL_set_num_tickets(SSL *s, size_t num_tickets) 822{ 823 s->num_tickets = num_tickets; 824 825 return 1; 826} 827LSSL_ALIAS(SSL_set_num_tickets); 828 829size_t 830SSL_get_num_tickets(const SSL *s) 831{ 832 return s->num_tickets; 833} 834LSSL_ALIAS(SSL_get_num_tickets); 835 836int 837SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets) 838{ 839 ctx->num_tickets = num_tickets; 840 841 return 1; 842} 843LSSL_ALIAS(SSL_CTX_set_num_tickets); 844 845size_t 846SSL_CTX_get_num_tickets(const SSL_CTX *ctx) 847{ 848 return ctx->num_tickets; 849} 850LSSL_ALIAS(SSL_CTX_get_num_tickets); 851 852int 853SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 854{ 855 return (ctx->verify_mode); 856} 857LSSL_ALIAS(SSL_CTX_get_verify_mode); 858 859int 860SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 861{ 862 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 863} 864LSSL_ALIAS(SSL_CTX_get_verify_depth); 865 866int 867(*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 868{ 869 return (ctx->default_verify_callback); 870} 871LSSL_ALIAS(SSL_CTX_get_verify_callback); 872 873void 874SSL_set_verify(SSL *s, int mode, 875 int (*callback)(int ok, X509_STORE_CTX *ctx)) 876{ 877 s->verify_mode = mode; 878 if (callback != NULL) 879 s->verify_callback = callback; 880} 881LSSL_ALIAS(SSL_set_verify); 882 883void 884SSL_set_verify_depth(SSL *s, int depth) 885{ 886 X509_VERIFY_PARAM_set_depth(s->param, depth); 887} 888LSSL_ALIAS(SSL_set_verify_depth); 889 890void 891SSL_set_read_ahead(SSL *s, int yes) 892{ 893 s->read_ahead = yes; 894} 895LSSL_ALIAS(SSL_set_read_ahead); 896 897int 898SSL_get_read_ahead(const SSL *s) 899{ 900 return (s->read_ahead); 901} 902LSSL_ALIAS(SSL_get_read_ahead); 903 904int 905SSL_pending(const SSL *s) 906{ 907 return (s->method->ssl_pending(s)); 908} 909LSSL_ALIAS(SSL_pending); 910 911X509 * 912SSL_get_peer_certificate(const SSL *s) 913{ 914 X509 *cert; 915 916 if (s == NULL || s->session == NULL) 917 return NULL; 918 919 if ((cert = s->session->peer_cert) == NULL) 920 return NULL; 921 922 X509_up_ref(cert); 923 924 return cert; 925} 926LSSL_ALIAS(SSL_get_peer_certificate); 927 928STACK_OF(X509) * 929SSL_get_peer_cert_chain(const SSL *s) 930{ 931 if (s == NULL) 932 return NULL; 933 934 /* 935 * Achtung! Due to API inconsistency, a client includes the peer's leaf 936 * certificate in the peer certificate chain, while a server does not. 937 */ 938 if (!s->server) 939 return s->s3->hs.peer_certs; 940 941 return s->s3->hs.peer_certs_no_leaf; 942} 943LSSL_ALIAS(SSL_get_peer_cert_chain); 944 945STACK_OF(X509) * 946SSL_get0_verified_chain(const SSL *s) 947{ 948 if (s->s3 == NULL) 949 return NULL; 950 return s->s3->hs.verified_chain; 951} 952LSSL_ALIAS(SSL_get0_verified_chain); 953 954/* 955 * Now in theory, since the calling process own 't' it should be safe to 956 * modify. We need to be able to read f without being hassled 957 */ 958int 959SSL_copy_session_id(SSL *t, const SSL *f) 960{ 961 SSL_CERT *tmp; 962 963 /* Do we need to do SSL locking? */ 964 if (!SSL_set_session(t, SSL_get_session(f))) 965 return 0; 966 967 /* What if we are set up for one protocol but want to talk another? */ 968 if (t->method != f->method) { 969 t->method->ssl_free(t); 970 t->method = f->method; 971 if (!t->method->ssl_new(t)) 972 return 0; 973 } 974 975 tmp = t->cert; 976 if (f->cert != NULL) { 977 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 978 t->cert = f->cert; 979 } else 980 t->cert = NULL; 981 ssl_cert_free(tmp); 982 983 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) 984 return 0; 985 986 return 1; 987} 988LSSL_ALIAS(SSL_copy_session_id); 989 990/* Fix this so it checks all the valid key/cert options */ 991int 992SSL_CTX_check_private_key(const SSL_CTX *ctx) 993{ 994 if ((ctx == NULL) || (ctx->cert == NULL) || 995 (ctx->cert->key->x509 == NULL)) { 996 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED); 997 return (0); 998 } 999 if (ctx->cert->key->privatekey == NULL) { 1000 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED); 1001 return (0); 1002 } 1003 return (X509_check_private_key(ctx->cert->key->x509, 1004 ctx->cert->key->privatekey)); 1005} 1006LSSL_ALIAS(SSL_CTX_check_private_key); 1007 1008/* Fix this function so that it takes an optional type parameter */ 1009int 1010SSL_check_private_key(const SSL *ssl) 1011{ 1012 if (ssl == NULL) { 1013 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); 1014 return (0); 1015 } 1016 if (ssl->cert == NULL) { 1017 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 1018 return (0); 1019 } 1020 if (ssl->cert->key->x509 == NULL) { 1021 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 1022 return (0); 1023 } 1024 if (ssl->cert->key->privatekey == NULL) { 1025 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 1026 return (0); 1027 } 1028 return (X509_check_private_key(ssl->cert->key->x509, 1029 ssl->cert->key->privatekey)); 1030} 1031LSSL_ALIAS(SSL_check_private_key); 1032 1033int 1034SSL_accept(SSL *s) 1035{ 1036 if (s->handshake_func == NULL) 1037 SSL_set_accept_state(s); /* Not properly initialized yet */ 1038 1039 return (s->method->ssl_accept(s)); 1040} 1041LSSL_ALIAS(SSL_accept); 1042 1043int 1044SSL_connect(SSL *s) 1045{ 1046 if (s->handshake_func == NULL) 1047 SSL_set_connect_state(s); /* Not properly initialized yet */ 1048 1049 return (s->method->ssl_connect(s)); 1050} 1051LSSL_ALIAS(SSL_connect); 1052 1053int 1054SSL_is_dtls(const SSL *s) 1055{ 1056 return s->method->dtls; 1057} 1058LSSL_ALIAS(SSL_is_dtls); 1059 1060int 1061SSL_is_server(const SSL *s) 1062{ 1063 return s->server; 1064} 1065LSSL_ALIAS(SSL_is_server); 1066 1067static long 1068ssl_get_default_timeout(void) 1069{ 1070 /* 1071 * 2 hours, the 24 hours mentioned in the TLSv1 spec 1072 * is way too long for http, the cache would over fill. 1073 */ 1074 return (2 * 60 * 60); 1075} 1076 1077long 1078SSL_get_default_timeout(const SSL *s) 1079{ 1080 return (ssl_get_default_timeout()); 1081} 1082LSSL_ALIAS(SSL_get_default_timeout); 1083 1084int 1085SSL_read(SSL *s, void *buf, int num) 1086{ 1087 if (num < 0) { 1088 SSLerror(s, SSL_R_BAD_LENGTH); 1089 return -1; 1090 } 1091 1092 if (SSL_is_quic(s)) { 1093 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1094 return (-1); 1095 } 1096 1097 if (s->handshake_func == NULL) { 1098 SSLerror(s, SSL_R_UNINITIALIZED); 1099 return (-1); 1100 } 1101 1102 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 1103 s->rwstate = SSL_NOTHING; 1104 return (0); 1105 } 1106 return ssl3_read(s, buf, num); 1107} 1108LSSL_ALIAS(SSL_read); 1109 1110int 1111SSL_read_ex(SSL *s, void *buf, size_t num, size_t *bytes_read) 1112{ 1113 int ret; 1114 1115 /* We simply don't bother supporting enormous reads */ 1116 if (num > INT_MAX) { 1117 SSLerror(s, SSL_R_BAD_LENGTH); 1118 return 0; 1119 } 1120 1121 ret = SSL_read(s, buf, (int)num); 1122 if (ret < 0) 1123 ret = 0; 1124 *bytes_read = ret; 1125 1126 return ret > 0; 1127} 1128LSSL_ALIAS(SSL_read_ex); 1129 1130int 1131SSL_peek(SSL *s, void *buf, int num) 1132{ 1133 if (num < 0) { 1134 SSLerror(s, SSL_R_BAD_LENGTH); 1135 return -1; 1136 } 1137 1138 if (SSL_is_quic(s)) { 1139 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1140 return (-1); 1141 } 1142 1143 if (s->handshake_func == NULL) { 1144 SSLerror(s, SSL_R_UNINITIALIZED); 1145 return (-1); 1146 } 1147 1148 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 1149 return (0); 1150 } 1151 return ssl3_peek(s, buf, num); 1152} 1153LSSL_ALIAS(SSL_peek); 1154 1155int 1156SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *bytes_peeked) 1157{ 1158 int ret; 1159 1160 /* We simply don't bother supporting enormous peeks */ 1161 if (num > INT_MAX) { 1162 SSLerror(s, SSL_R_BAD_LENGTH); 1163 return 0; 1164 } 1165 1166 ret = SSL_peek(s, buf, (int)num); 1167 if (ret < 0) 1168 ret = 0; 1169 *bytes_peeked = ret; 1170 1171 return ret > 0; 1172} 1173LSSL_ALIAS(SSL_peek_ex); 1174 1175int 1176SSL_write(SSL *s, const void *buf, int num) 1177{ 1178 if (num < 0) { 1179 SSLerror(s, SSL_R_BAD_LENGTH); 1180 return -1; 1181 } 1182 1183 if (SSL_is_quic(s)) { 1184 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1185 return (-1); 1186 } 1187 1188 if (s->handshake_func == NULL) { 1189 SSLerror(s, SSL_R_UNINITIALIZED); 1190 return (-1); 1191 } 1192 1193 if (s->shutdown & SSL_SENT_SHUTDOWN) { 1194 s->rwstate = SSL_NOTHING; 1195 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 1196 return (-1); 1197 } 1198 return ssl3_write(s, buf, num); 1199} 1200LSSL_ALIAS(SSL_write); 1201 1202int 1203SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *bytes_written) 1204{ 1205 int ret; 1206 1207 /* We simply don't bother supporting enormous writes */ 1208 if (num > INT_MAX) { 1209 SSLerror(s, SSL_R_BAD_LENGTH); 1210 return 0; 1211 } 1212 1213 if (num == 0) { 1214 /* This API is special */ 1215 bytes_written = 0; 1216 return 1; 1217 } 1218 1219 ret = SSL_write(s, buf, (int)num); 1220 if (ret < 0) 1221 ret = 0; 1222 *bytes_written = ret; 1223 1224 return ret > 0; 1225} 1226LSSL_ALIAS(SSL_write_ex); 1227 1228uint32_t 1229SSL_CTX_get_max_early_data(const SSL_CTX *ctx) 1230{ 1231 return 0; 1232} 1233LSSL_ALIAS(SSL_CTX_get_max_early_data); 1234 1235int 1236SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) 1237{ 1238 return 1; 1239} 1240LSSL_ALIAS(SSL_CTX_set_max_early_data); 1241 1242uint32_t 1243SSL_get_max_early_data(const SSL *s) 1244{ 1245 return 0; 1246} 1247LSSL_ALIAS(SSL_get_max_early_data); 1248 1249int 1250SSL_set_max_early_data(SSL *s, uint32_t max_early_data) 1251{ 1252 return 1; 1253} 1254LSSL_ALIAS(SSL_set_max_early_data); 1255 1256int 1257SSL_get_early_data_status(const SSL *s) 1258{ 1259 return SSL_EARLY_DATA_REJECTED; 1260} 1261LSSL_ALIAS(SSL_get_early_data_status); 1262 1263int 1264SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) 1265{ 1266 *readbytes = 0; 1267 1268 if (!s->server) { 1269 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1270 return SSL_READ_EARLY_DATA_ERROR; 1271 } 1272 1273 return SSL_READ_EARLY_DATA_FINISH; 1274} 1275LSSL_ALIAS(SSL_read_early_data); 1276 1277int 1278SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) 1279{ 1280 *written = 0; 1281 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1282 return 0; 1283} 1284LSSL_ALIAS(SSL_write_early_data); 1285 1286int 1287SSL_shutdown(SSL *s) 1288{ 1289 /* 1290 * Note that this function behaves differently from what one might 1291 * expect. Return values are 0 for no success (yet), 1292 * 1 for success; but calling it once is usually not enough, 1293 * even if blocking I/O is used (see ssl3_shutdown). 1294 */ 1295 1296 if (s->handshake_func == NULL) { 1297 SSLerror(s, SSL_R_UNINITIALIZED); 1298 return (-1); 1299 } 1300 1301 if (s != NULL && !SSL_in_init(s)) 1302 return (s->method->ssl_shutdown(s)); 1303 1304 return (1); 1305} 1306LSSL_ALIAS(SSL_shutdown); 1307 1308int 1309SSL_renegotiate(SSL *s) 1310{ 1311 if (s->renegotiate == 0) 1312 s->renegotiate = 1; 1313 1314 s->new_session = 1; 1315 1316 return (s->method->ssl_renegotiate(s)); 1317} 1318LSSL_ALIAS(SSL_renegotiate); 1319 1320int 1321SSL_renegotiate_abbreviated(SSL *s) 1322{ 1323 if (s->renegotiate == 0) 1324 s->renegotiate = 1; 1325 1326 s->new_session = 0; 1327 1328 return (s->method->ssl_renegotiate(s)); 1329} 1330LSSL_ALIAS(SSL_renegotiate_abbreviated); 1331 1332int 1333SSL_renegotiate_pending(SSL *s) 1334{ 1335 /* 1336 * Becomes true when negotiation is requested; 1337 * false again once a handshake has finished. 1338 */ 1339 return (s->renegotiate != 0); 1340} 1341LSSL_ALIAS(SSL_renegotiate_pending); 1342 1343long 1344SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1345{ 1346 long l; 1347 1348 switch (cmd) { 1349 case SSL_CTRL_GET_READ_AHEAD: 1350 return (s->read_ahead); 1351 case SSL_CTRL_SET_READ_AHEAD: 1352 l = s->read_ahead; 1353 s->read_ahead = larg; 1354 return (l); 1355 1356 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1357 s->msg_callback_arg = parg; 1358 return (1); 1359 1360 case SSL_CTRL_OPTIONS: 1361 return (s->options|=larg); 1362 case SSL_CTRL_CLEAR_OPTIONS: 1363 return (s->options&=~larg); 1364 case SSL_CTRL_MODE: 1365 return (s->mode|=larg); 1366 case SSL_CTRL_CLEAR_MODE: 1367 return (s->mode &=~larg); 1368 case SSL_CTRL_GET_MAX_CERT_LIST: 1369 return (s->max_cert_list); 1370 case SSL_CTRL_SET_MAX_CERT_LIST: 1371 l = s->max_cert_list; 1372 s->max_cert_list = larg; 1373 return (l); 1374 case SSL_CTRL_SET_MTU: 1375#ifndef OPENSSL_NO_DTLS1 1376 if (larg < (long)dtls1_min_mtu()) 1377 return (0); 1378#endif 1379 if (SSL_is_dtls(s)) { 1380 s->d1->mtu = larg; 1381 return (larg); 1382 } 1383 return (0); 1384 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1385 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1386 return (0); 1387 s->max_send_fragment = larg; 1388 return (1); 1389 case SSL_CTRL_GET_RI_SUPPORT: 1390 if (s->s3) 1391 return (s->s3->send_connection_binding); 1392 else return (0); 1393 default: 1394 if (SSL_is_dtls(s)) 1395 return dtls1_ctrl(s, cmd, larg, parg); 1396 return ssl3_ctrl(s, cmd, larg, parg); 1397 } 1398} 1399LSSL_ALIAS(SSL_ctrl); 1400 1401long 1402SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1403{ 1404 switch (cmd) { 1405 case SSL_CTRL_SET_MSG_CALLBACK: 1406 s->msg_callback = (ssl_msg_callback_fn *)(fp); 1407 return (1); 1408 1409 default: 1410 return (ssl3_callback_ctrl(s, cmd, fp)); 1411 } 1412} 1413LSSL_ALIAS(SSL_callback_ctrl); 1414 1415struct lhash_st_SSL_SESSION * 1416SSL_CTX_sessions(SSL_CTX *ctx) 1417{ 1418 return (ctx->sessions); 1419} 1420LSSL_ALIAS(SSL_CTX_sessions); 1421 1422long 1423SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1424{ 1425 long l; 1426 1427 switch (cmd) { 1428 case SSL_CTRL_GET_READ_AHEAD: 1429 return (ctx->read_ahead); 1430 case SSL_CTRL_SET_READ_AHEAD: 1431 l = ctx->read_ahead; 1432 ctx->read_ahead = larg; 1433 return (l); 1434 1435 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1436 ctx->msg_callback_arg = parg; 1437 return (1); 1438 1439 case SSL_CTRL_GET_MAX_CERT_LIST: 1440 return (ctx->max_cert_list); 1441 case SSL_CTRL_SET_MAX_CERT_LIST: 1442 l = ctx->max_cert_list; 1443 ctx->max_cert_list = larg; 1444 return (l); 1445 1446 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1447 l = ctx->session_cache_size; 1448 ctx->session_cache_size = larg; 1449 return (l); 1450 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1451 return (ctx->session_cache_size); 1452 case SSL_CTRL_SET_SESS_CACHE_MODE: 1453 l = ctx->session_cache_mode; 1454 ctx->session_cache_mode = larg; 1455 return (l); 1456 case SSL_CTRL_GET_SESS_CACHE_MODE: 1457 return (ctx->session_cache_mode); 1458 1459 case SSL_CTRL_SESS_NUMBER: 1460 return (lh_SSL_SESSION_num_items(ctx->sessions)); 1461 case SSL_CTRL_SESS_CONNECT: 1462 return (ctx->stats.sess_connect); 1463 case SSL_CTRL_SESS_CONNECT_GOOD: 1464 return (ctx->stats.sess_connect_good); 1465 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1466 return (ctx->stats.sess_connect_renegotiate); 1467 case SSL_CTRL_SESS_ACCEPT: 1468 return (ctx->stats.sess_accept); 1469 case SSL_CTRL_SESS_ACCEPT_GOOD: 1470 return (ctx->stats.sess_accept_good); 1471 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1472 return (ctx->stats.sess_accept_renegotiate); 1473 case SSL_CTRL_SESS_HIT: 1474 return (ctx->stats.sess_hit); 1475 case SSL_CTRL_SESS_CB_HIT: 1476 return (ctx->stats.sess_cb_hit); 1477 case SSL_CTRL_SESS_MISSES: 1478 return (ctx->stats.sess_miss); 1479 case SSL_CTRL_SESS_TIMEOUTS: 1480 return (ctx->stats.sess_timeout); 1481 case SSL_CTRL_SESS_CACHE_FULL: 1482 return (ctx->stats.sess_cache_full); 1483 case SSL_CTRL_OPTIONS: 1484 return (ctx->options|=larg); 1485 case SSL_CTRL_CLEAR_OPTIONS: 1486 return (ctx->options&=~larg); 1487 case SSL_CTRL_MODE: 1488 return (ctx->mode|=larg); 1489 case SSL_CTRL_CLEAR_MODE: 1490 return (ctx->mode&=~larg); 1491 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1492 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1493 return (0); 1494 ctx->max_send_fragment = larg; 1495 return (1); 1496 default: 1497 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1498 } 1499} 1500LSSL_ALIAS(SSL_CTX_ctrl); 1501 1502long 1503SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1504{ 1505 switch (cmd) { 1506 case SSL_CTRL_SET_MSG_CALLBACK: 1507 ctx->msg_callback = (ssl_msg_callback_fn *)fp; 1508 return (1); 1509 1510 default: 1511 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1512 } 1513} 1514LSSL_ALIAS(SSL_CTX_callback_ctrl); 1515 1516STACK_OF(SSL_CIPHER) * 1517SSL_get_ciphers(const SSL *s) 1518{ 1519 if (s == NULL) 1520 return (NULL); 1521 if (s->cipher_list != NULL) 1522 return (s->cipher_list); 1523 1524 return (s->ctx->cipher_list); 1525} 1526LSSL_ALIAS(SSL_get_ciphers); 1527 1528STACK_OF(SSL_CIPHER) * 1529SSL_get_client_ciphers(const SSL *s) 1530{ 1531 if (s == NULL || s->session == NULL || !s->server) 1532 return NULL; 1533 return s->session->ciphers; 1534} 1535LSSL_ALIAS(SSL_get_client_ciphers); 1536 1537STACK_OF(SSL_CIPHER) * 1538SSL_get1_supported_ciphers(SSL *s) 1539{ 1540 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers; 1541 SSL_CIPHER *cipher; 1542 uint16_t min_vers, max_vers; 1543 int i; 1544 1545 if (s == NULL) 1546 return NULL; 1547 if (!ssl_supported_tls_version_range(s, &min_vers, &max_vers)) 1548 return NULL; 1549 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1550 return NULL; 1551 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL) 1552 return NULL; 1553 1554 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1555 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL) 1556 goto err; 1557 if (!ssl_cipher_allowed_in_tls_version_range(cipher, min_vers, 1558 max_vers)) 1559 continue; 1560 if (!ssl_security_supported_cipher(s, cipher)) 1561 continue; 1562 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher)) 1563 goto err; 1564 } 1565 1566 if (sk_SSL_CIPHER_num(supported_ciphers) > 0) 1567 return supported_ciphers; 1568 1569 err: 1570 sk_SSL_CIPHER_free(supported_ciphers); 1571 return NULL; 1572} 1573LSSL_ALIAS(SSL_get1_supported_ciphers); 1574 1575/* See if we have any ECC cipher suites. */ 1576int 1577ssl_has_ecc_ciphers(SSL *s) 1578{ 1579 STACK_OF(SSL_CIPHER) *ciphers; 1580 unsigned long alg_k, alg_a; 1581 SSL_CIPHER *cipher; 1582 int i; 1583 1584 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1585 return 0; 1586 1587 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1588 cipher = sk_SSL_CIPHER_value(ciphers, i); 1589 1590 alg_k = cipher->algorithm_mkey; 1591 alg_a = cipher->algorithm_auth; 1592 1593 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1594 return 1; 1595 } 1596 1597 return 0; 1598} 1599 1600/* The old interface to get the same thing as SSL_get_ciphers(). */ 1601const char * 1602SSL_get_cipher_list(const SSL *s, int n) 1603{ 1604 STACK_OF(SSL_CIPHER) *ciphers; 1605 const SSL_CIPHER *cipher; 1606 1607 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1608 return (NULL); 1609 if ((cipher = sk_SSL_CIPHER_value(ciphers, n)) == NULL) 1610 return (NULL); 1611 1612 return (cipher->name); 1613} 1614LSSL_ALIAS(SSL_get_cipher_list); 1615 1616STACK_OF(SSL_CIPHER) * 1617SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1618{ 1619 if (ctx == NULL) 1620 return NULL; 1621 return ctx->cipher_list; 1622} 1623LSSL_ALIAS(SSL_CTX_get_ciphers); 1624 1625/* Specify the ciphers to be used by default by the SSL_CTX. */ 1626int 1627SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1628{ 1629 STACK_OF(SSL_CIPHER) *ciphers; 1630 1631 /* 1632 * ssl_create_cipher_list may return an empty stack if it was unable to 1633 * find a cipher matching the given rule string (for example if the 1634 * rule string specifies a cipher which has been disabled). This is not 1635 * an error as far as ssl_create_cipher_list is concerned, and hence 1636 * ctx->cipher_list has been updated. 1637 */ 1638 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1639 ctx->cipher_list_tls13, str, ctx->cert); 1640 if (ciphers == NULL) { 1641 return (0); 1642 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1643 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1644 return (0); 1645 } 1646 return (1); 1647} 1648LSSL_ALIAS(SSL_CTX_set_cipher_list); 1649 1650int 1651SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str) 1652{ 1653 if (!ssl_parse_ciphersuites(&ctx->cipher_list_tls13, str)) { 1654 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1655 return 0; 1656 } 1657 if (!ssl_merge_cipherlists(ctx->cipher_list, 1658 ctx->cipher_list_tls13, &ctx->cipher_list)) 1659 return 0; 1660 1661 return 1; 1662} 1663LSSL_ALIAS(SSL_CTX_set_ciphersuites); 1664 1665/* Specify the ciphers to be used by the SSL. */ 1666int 1667SSL_set_cipher_list(SSL *s, const char *str) 1668{ 1669 STACK_OF(SSL_CIPHER) *ciphers, *ciphers_tls13; 1670 1671 if ((ciphers_tls13 = s->cipher_list_tls13) == NULL) 1672 ciphers_tls13 = s->ctx->cipher_list_tls13; 1673 1674 /* See comment in SSL_CTX_set_cipher_list. */ 1675 ciphers = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1676 ciphers_tls13, str, s->cert); 1677 if (ciphers == NULL) { 1678 return (0); 1679 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1680 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1681 return (0); 1682 } 1683 return (1); 1684} 1685LSSL_ALIAS(SSL_set_cipher_list); 1686 1687int 1688SSL_set_ciphersuites(SSL *s, const char *str) 1689{ 1690 STACK_OF(SSL_CIPHER) *ciphers; 1691 1692 if ((ciphers = s->cipher_list) == NULL) 1693 ciphers = s->ctx->cipher_list; 1694 1695 if (!ssl_parse_ciphersuites(&s->cipher_list_tls13, str)) { 1696 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1697 return (0); 1698 } 1699 if (!ssl_merge_cipherlists(ciphers, s->cipher_list_tls13, 1700 &s->cipher_list)) 1701 return 0; 1702 1703 return 1; 1704} 1705LSSL_ALIAS(SSL_set_ciphersuites); 1706 1707char * 1708SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1709{ 1710 STACK_OF(SSL_CIPHER) *client_ciphers, *server_ciphers; 1711 const SSL_CIPHER *cipher; 1712 size_t curlen = 0; 1713 char *end; 1714 int i; 1715 1716 if (!s->server || s->session == NULL || len < 2) 1717 return NULL; 1718 1719 if ((client_ciphers = s->session->ciphers) == NULL) 1720 return NULL; 1721 if ((server_ciphers = SSL_get_ciphers(s)) == NULL) 1722 return NULL; 1723 if (sk_SSL_CIPHER_num(client_ciphers) == 0 || 1724 sk_SSL_CIPHER_num(server_ciphers) == 0) 1725 return NULL; 1726 1727 buf[0] = '\0'; 1728 for (i = 0; i < sk_SSL_CIPHER_num(client_ciphers); i++) { 1729 cipher = sk_SSL_CIPHER_value(client_ciphers, i); 1730 1731 if (sk_SSL_CIPHER_find(server_ciphers, cipher) < 0) 1732 continue; 1733 1734 end = buf + curlen; 1735 if (strlcat(buf, cipher->name, len) >= len || 1736 (curlen = strlcat(buf, ":", len)) >= len) { 1737 /* remove truncated cipher from list */ 1738 *end = '\0'; 1739 break; 1740 } 1741 } 1742 /* remove trailing colon */ 1743 if ((end = strrchr(buf, ':')) != NULL) 1744 *end = '\0'; 1745 return buf; 1746} 1747LSSL_ALIAS(SSL_get_shared_ciphers); 1748 1749/* 1750 * Return a servername extension value if provided in Client Hello, or NULL. 1751 * So far, only host_name types are defined (RFC 3546). 1752 */ 1753const char * 1754SSL_get_servername(const SSL *s, const int type) 1755{ 1756 if (type != TLSEXT_NAMETYPE_host_name) 1757 return (NULL); 1758 1759 return (s->session && !s->tlsext_hostname ? 1760 s->session->tlsext_hostname : 1761 s->tlsext_hostname); 1762} 1763LSSL_ALIAS(SSL_get_servername); 1764 1765int 1766SSL_get_servername_type(const SSL *s) 1767{ 1768 if (s->session && 1769 (!s->tlsext_hostname ? 1770 s->session->tlsext_hostname : s->tlsext_hostname)) 1771 return (TLSEXT_NAMETYPE_host_name); 1772 return (-1); 1773} 1774LSSL_ALIAS(SSL_get_servername_type); 1775 1776/* 1777 * SSL_select_next_proto implements standard protocol selection. It is 1778 * expected that this function is called from the callback set by 1779 * SSL_CTX_set_alpn_select_cb. 1780 * 1781 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1782 * strings. The length byte itself is not included in the length. A byte 1783 * string of length 0 is invalid. No byte string may be truncated. 1784 * 1785 * It returns either: 1786 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1787 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1788 */ 1789int 1790SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1791 const unsigned char *server, unsigned int server_len, 1792 const unsigned char *client, unsigned int client_len) 1793{ 1794 unsigned int i, j; 1795 const unsigned char *result; 1796 int status = OPENSSL_NPN_UNSUPPORTED; 1797 1798 /* 1799 * For each protocol in server preference order, 1800 * see if we support it. 1801 */ 1802 for (i = 0; i < server_len; ) { 1803 for (j = 0; j < client_len; ) { 1804 if (server[i] == client[j] && 1805 memcmp(&server[i + 1], 1806 &client[j + 1], server[i]) == 0) { 1807 /* We found a match */ 1808 result = &server[i]; 1809 status = OPENSSL_NPN_NEGOTIATED; 1810 goto found; 1811 } 1812 j += client[j]; 1813 j++; 1814 } 1815 i += server[i]; 1816 i++; 1817 } 1818 1819 /* There's no overlap between our protocols and the server's list. */ 1820 result = client; 1821 status = OPENSSL_NPN_NO_OVERLAP; 1822 1823 found: 1824 *out = (unsigned char *) result + 1; 1825 *outlen = result[0]; 1826 return (status); 1827} 1828LSSL_ALIAS(SSL_select_next_proto); 1829 1830/* SSL_get0_next_proto_negotiated is deprecated. */ 1831void 1832SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1833 unsigned int *len) 1834{ 1835 *data = NULL; 1836 *len = 0; 1837} 1838LSSL_ALIAS(SSL_get0_next_proto_negotiated); 1839 1840/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1841void 1842SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1843 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1844{ 1845} 1846LSSL_ALIAS(SSL_CTX_set_next_protos_advertised_cb); 1847 1848/* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1849void 1850SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1851 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1852 unsigned int inlen, void *arg), void *arg) 1853{ 1854} 1855LSSL_ALIAS(SSL_CTX_set_next_proto_select_cb); 1856 1857/* 1858 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1859 * protocols, which must be in wire-format (i.e. a series of non-empty, 1860 * 8-bit length-prefixed strings). Returns 0 on success. 1861 */ 1862int 1863SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1864 unsigned int protos_len) 1865{ 1866 CBS cbs; 1867 int failed = 1; 1868 1869 if (protos == NULL) 1870 protos_len = 0; 1871 1872 CBS_init(&cbs, protos, protos_len); 1873 1874 if (protos_len > 0) { 1875 if (!tlsext_alpn_check_format(&cbs)) 1876 goto err; 1877 } 1878 1879 if (!CBS_stow(&cbs, &ctx->alpn_client_proto_list, 1880 &ctx->alpn_client_proto_list_len)) 1881 goto err; 1882 1883 failed = 0; 1884 1885 err: 1886 /* NOTE: Return values are the reverse of what you expect. */ 1887 return failed; 1888} 1889LSSL_ALIAS(SSL_CTX_set_alpn_protos); 1890 1891/* 1892 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1893 * protocols, which must be in wire-format (i.e. a series of non-empty, 1894 * 8-bit length-prefixed strings). Returns 0 on success. 1895 */ 1896int 1897SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1898 unsigned int protos_len) 1899{ 1900 CBS cbs; 1901 int failed = 1; 1902 1903 if (protos == NULL) 1904 protos_len = 0; 1905 1906 CBS_init(&cbs, protos, protos_len); 1907 1908 if (protos_len > 0) { 1909 if (!tlsext_alpn_check_format(&cbs)) 1910 goto err; 1911 } 1912 1913 if (!CBS_stow(&cbs, &ssl->alpn_client_proto_list, 1914 &ssl->alpn_client_proto_list_len)) 1915 goto err; 1916 1917 failed = 0; 1918 1919 err: 1920 /* NOTE: Return values are the reverse of what you expect. */ 1921 return failed; 1922} 1923LSSL_ALIAS(SSL_set_alpn_protos); 1924 1925/* 1926 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1927 * ClientHello processing in order to select an ALPN protocol from the 1928 * client's list of offered protocols. 1929 */ 1930void 1931SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1932 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1933 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1934{ 1935 ctx->alpn_select_cb = cb; 1936 ctx->alpn_select_cb_arg = arg; 1937} 1938LSSL_ALIAS(SSL_CTX_set_alpn_select_cb); 1939 1940/* 1941 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1942 * it sets data to point to len bytes of protocol name (not including the 1943 * leading length-prefix byte). If the server didn't respond with* a negotiated 1944 * protocol then len will be zero. 1945 */ 1946void 1947SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1948 unsigned int *len) 1949{ 1950 *data = ssl->s3->alpn_selected; 1951 *len = ssl->s3->alpn_selected_len; 1952} 1953LSSL_ALIAS(SSL_get0_alpn_selected); 1954 1955void 1956SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb) 1957{ 1958 return; 1959} 1960LSSL_ALIAS(SSL_set_psk_use_session_callback); 1961 1962int 1963SSL_export_keying_material(SSL *s, unsigned char *out, size_t out_len, 1964 const char *label, size_t label_len, const unsigned char *context, 1965 size_t context_len, int use_context) 1966{ 1967 if (s->tls13 != NULL && s->version == TLS1_3_VERSION) { 1968 if (!use_context) { 1969 context = NULL; 1970 context_len = 0; 1971 } 1972 return tls13_exporter(s->tls13, label, label_len, context, 1973 context_len, out, out_len); 1974 } 1975 1976 return tls12_exporter(s, label, label_len, context, context_len, 1977 use_context, out, out_len); 1978} 1979LSSL_ALIAS(SSL_export_keying_material); 1980 1981static unsigned long 1982ssl_session_hash(const SSL_SESSION *a) 1983{ 1984 unsigned long l; 1985 1986 l = (unsigned long) 1987 ((unsigned int) a->session_id[0] )| 1988 ((unsigned int) a->session_id[1]<< 8L)| 1989 ((unsigned long)a->session_id[2]<<16L)| 1990 ((unsigned long)a->session_id[3]<<24L); 1991 return (l); 1992} 1993 1994/* 1995 * NB: If this function (or indeed the hash function which uses a sort of 1996 * coarser function than this one) is changed, ensure 1997 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1998 * able to construct an SSL_SESSION that will collide with any existing session 1999 * with a matching session ID. 2000 */ 2001static int 2002ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 2003{ 2004 if (a->ssl_version != b->ssl_version) 2005 return (1); 2006 if (a->session_id_length != b->session_id_length) 2007 return (1); 2008 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 2009 return (1); 2010 return (0); 2011} 2012 2013/* 2014 * These wrapper functions should remain rather than redeclaring 2015 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 2016 * variable. The reason is that the functions aren't static, they're exposed via 2017 * ssl.h. 2018 */ 2019static unsigned long 2020ssl_session_LHASH_HASH(const void *arg) 2021{ 2022 const SSL_SESSION *a = arg; 2023 2024 return ssl_session_hash(a); 2025} 2026 2027static int 2028ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 2029{ 2030 const SSL_SESSION *a = arg1; 2031 const SSL_SESSION *b = arg2; 2032 2033 return ssl_session_cmp(a, b); 2034} 2035 2036SSL_CTX * 2037SSL_CTX_new(const SSL_METHOD *meth) 2038{ 2039 SSL_CTX *ret; 2040 2041 if (!OPENSSL_init_ssl(0, NULL)) { 2042 SSLerrorx(SSL_R_LIBRARY_BUG); 2043 return (NULL); 2044 } 2045 2046 if (meth == NULL) { 2047 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 2048 return (NULL); 2049 } 2050 2051 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 2052 SSLerrorx(ERR_R_MALLOC_FAILURE); 2053 return (NULL); 2054 } 2055 2056 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 2057 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 2058 goto err; 2059 } 2060 2061 ret->method = meth; 2062 ret->min_tls_version = meth->min_tls_version; 2063 ret->max_tls_version = meth->max_tls_version; 2064 ret->min_proto_version = 0; 2065 ret->max_proto_version = 0; 2066 ret->mode = SSL_MODE_AUTO_RETRY; 2067 2068 ret->cert_store = NULL; 2069 ret->session_cache_mode = SSL_SESS_CACHE_SERVER; 2070 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 2071 ret->session_cache_head = NULL; 2072 ret->session_cache_tail = NULL; 2073 2074 /* We take the system default */ 2075 ret->session_timeout = ssl_get_default_timeout(); 2076 2077 ret->new_session_cb = NULL; 2078 ret->remove_session_cb = NULL; 2079 ret->get_session_cb = NULL; 2080 ret->generate_session_id = NULL; 2081 2082 memset((char *)&ret->stats, 0, sizeof(ret->stats)); 2083 2084 ret->references = 1; 2085 ret->quiet_shutdown = 0; 2086 2087 ret->info_callback = NULL; 2088 2089 ret->app_verify_callback = NULL; 2090 ret->app_verify_arg = NULL; 2091 2092 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 2093 ret->read_ahead = 0; 2094 ret->msg_callback = NULL; 2095 ret->msg_callback_arg = NULL; 2096 ret->verify_mode = SSL_VERIFY_NONE; 2097 ret->sid_ctx_length = 0; 2098 ret->default_verify_callback = NULL; 2099 2100 if ((ret->cert = ssl_cert_new()) == NULL) 2101 goto err; 2102 2103 ret->default_passwd_callback = NULL; 2104 ret->default_passwd_callback_userdata = NULL; 2105 ret->client_cert_cb = NULL; 2106 ret->app_gen_cookie_cb = NULL; 2107 ret->app_verify_cookie_cb = NULL; 2108 2109 ret->sessions = lh_SSL_SESSION_new(); 2110 if (ret->sessions == NULL) 2111 goto err; 2112 ret->cert_store = X509_STORE_new(); 2113 if (ret->cert_store == NULL) 2114 goto err; 2115 2116 ssl_create_cipher_list(ret->method, &ret->cipher_list, 2117 NULL, SSL_DEFAULT_CIPHER_LIST, ret->cert); 2118 if (ret->cipher_list == NULL || 2119 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 2120 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 2121 goto err2; 2122 } 2123 2124 ret->param = X509_VERIFY_PARAM_new(); 2125 if (!ret->param) 2126 goto err; 2127 2128 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) 2129 goto err; 2130 2131 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 2132 2133 ret->extra_certs = NULL; 2134 2135 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 2136 2137 ret->tlsext_servername_callback = 0; 2138 ret->tlsext_servername_arg = NULL; 2139 2140 /* Setup RFC4507 ticket keys */ 2141 arc4random_buf(ret->tlsext_tick_key_name, 16); 2142 arc4random_buf(ret->tlsext_tick_hmac_key, 16); 2143 arc4random_buf(ret->tlsext_tick_aes_key, 16); 2144 2145 ret->tlsext_status_cb = 0; 2146 ret->tlsext_status_arg = NULL; 2147 2148 /* 2149 * Default is to connect to non-RI servers. When RI is more widely 2150 * deployed might change this. 2151 */ 2152 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; 2153 2154 return (ret); 2155 err: 2156 SSLerrorx(ERR_R_MALLOC_FAILURE); 2157 err2: 2158 SSL_CTX_free(ret); 2159 return (NULL); 2160} 2161LSSL_ALIAS(SSL_CTX_new); 2162 2163void 2164SSL_CTX_free(SSL_CTX *ctx) 2165{ 2166 int i; 2167 2168 if (ctx == NULL) 2169 return; 2170 2171 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 2172 if (i > 0) 2173 return; 2174 2175 X509_VERIFY_PARAM_free(ctx->param); 2176 2177 /* 2178 * Free internal session cache. However: the remove_cb() may reference 2179 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 2180 * after the sessions were flushed. 2181 * As the ex_data handling routines might also touch the session cache, 2182 * the most secure solution seems to be: empty (flush) the cache, then 2183 * free ex_data, then finally free the cache. 2184 * (See ticket [openssl.org #212].) 2185 */ 2186 if (ctx->sessions != NULL) 2187 SSL_CTX_flush_sessions(ctx, 0); 2188 2189 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->ex_data); 2190 2191 lh_SSL_SESSION_free(ctx->sessions); 2192 2193 X509_STORE_free(ctx->cert_store); 2194 sk_SSL_CIPHER_free(ctx->cipher_list); 2195 sk_SSL_CIPHER_free(ctx->cipher_list_tls13); 2196 ssl_cert_free(ctx->cert); 2197 sk_X509_NAME_pop_free(ctx->client_CA, X509_NAME_free); 2198 sk_X509_pop_free(ctx->extra_certs, X509_free); 2199 2200#ifndef OPENSSL_NO_SRTP 2201 if (ctx->srtp_profiles) 2202 sk_SRTP_PROTECTION_PROFILE_free(ctx->srtp_profiles); 2203#endif 2204 2205 free(ctx->tlsext_ecpointformatlist); 2206 free(ctx->tlsext_supportedgroups); 2207 2208 free(ctx->alpn_client_proto_list); 2209 2210 free(ctx); 2211} 2212LSSL_ALIAS(SSL_CTX_free); 2213 2214int 2215SSL_CTX_up_ref(SSL_CTX *ctx) 2216{ 2217 return CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX) > 1; 2218} 2219LSSL_ALIAS(SSL_CTX_up_ref); 2220 2221pem_password_cb * 2222SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 2223{ 2224 return (ctx->default_passwd_callback); 2225} 2226LSSL_ALIAS(SSL_CTX_get_default_passwd_cb); 2227 2228void 2229SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 2230{ 2231 ctx->default_passwd_callback = cb; 2232} 2233LSSL_ALIAS(SSL_CTX_set_default_passwd_cb); 2234 2235void * 2236SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 2237{ 2238 return ctx->default_passwd_callback_userdata; 2239} 2240LSSL_ALIAS(SSL_CTX_get_default_passwd_cb_userdata); 2241 2242void 2243SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 2244{ 2245 ctx->default_passwd_callback_userdata = u; 2246} 2247LSSL_ALIAS(SSL_CTX_set_default_passwd_cb_userdata); 2248 2249void 2250SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, 2251 int (*cb)(X509_STORE_CTX *, void *), void *arg) 2252{ 2253 ctx->app_verify_callback = cb; 2254 ctx->app_verify_arg = arg; 2255} 2256LSSL_ALIAS(SSL_CTX_set_cert_verify_callback); 2257 2258void 2259SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 2260{ 2261 ctx->verify_mode = mode; 2262 ctx->default_verify_callback = cb; 2263} 2264LSSL_ALIAS(SSL_CTX_set_verify); 2265 2266void 2267SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 2268{ 2269 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 2270} 2271LSSL_ALIAS(SSL_CTX_set_verify_depth); 2272 2273void 2274ssl_set_cert_masks(SSL_CERT *c, const SSL_CIPHER *cipher) 2275{ 2276 unsigned long mask_a, mask_k; 2277 SSL_CERT_PKEY *cpk; 2278 2279 if (c == NULL) 2280 return; 2281 2282 mask_a = SSL_aNULL | SSL_aTLS1_3; 2283 mask_k = SSL_kECDHE | SSL_kTLS1_3; 2284 2285 if (c->dhe_params != NULL || c->dhe_params_cb != NULL || 2286 c->dhe_params_auto != 0) 2287 mask_k |= SSL_kDHE; 2288 2289 cpk = &(c->pkeys[SSL_PKEY_ECC]); 2290 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2291 /* Key usage, if present, must allow signing. */ 2292 if (X509_get_key_usage(cpk->x509) & X509v3_KU_DIGITAL_SIGNATURE) 2293 mask_a |= SSL_aECDSA; 2294 } 2295 2296 cpk = &(c->pkeys[SSL_PKEY_RSA]); 2297 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2298 mask_a |= SSL_aRSA; 2299 mask_k |= SSL_kRSA; 2300 } 2301 2302 c->mask_k = mask_k; 2303 c->mask_a = mask_a; 2304 c->valid = 1; 2305} 2306 2307/* See if this handshake is using an ECC cipher suite. */ 2308int 2309ssl_using_ecc_cipher(SSL *s) 2310{ 2311 unsigned long alg_a, alg_k; 2312 2313 alg_a = s->s3->hs.cipher->algorithm_auth; 2314 alg_k = s->s3->hs.cipher->algorithm_mkey; 2315 2316 return s->session->tlsext_ecpointformatlist != NULL && 2317 s->session->tlsext_ecpointformatlist_length > 0 && 2318 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 2319} 2320 2321int 2322ssl_check_srvr_ecc_cert_and_alg(SSL *s, X509 *x) 2323{ 2324 const SSL_CIPHER *cs = s->s3->hs.cipher; 2325 unsigned long alg_a; 2326 2327 alg_a = cs->algorithm_auth; 2328 2329 if (alg_a & SSL_aECDSA) { 2330 /* Key usage, if present, must allow signing. */ 2331 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { 2332 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2333 return (0); 2334 } 2335 } 2336 2337 return (1); 2338} 2339 2340SSL_CERT_PKEY * 2341ssl_get_server_send_pkey(const SSL *s) 2342{ 2343 unsigned long alg_a; 2344 SSL_CERT *c; 2345 int i; 2346 2347 c = s->cert; 2348 ssl_set_cert_masks(c, s->s3->hs.cipher); 2349 2350 alg_a = s->s3->hs.cipher->algorithm_auth; 2351 2352 if (alg_a & SSL_aECDSA) { 2353 i = SSL_PKEY_ECC; 2354 } else if (alg_a & SSL_aRSA) { 2355 i = SSL_PKEY_RSA; 2356 } else { /* if (alg_a & SSL_aNULL) */ 2357 SSLerror(s, ERR_R_INTERNAL_ERROR); 2358 return (NULL); 2359 } 2360 2361 return (c->pkeys + i); 2362} 2363 2364EVP_PKEY * 2365ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2366 const struct ssl_sigalg **sap) 2367{ 2368 const struct ssl_sigalg *sigalg = NULL; 2369 EVP_PKEY *pkey = NULL; 2370 unsigned long alg_a; 2371 SSL_CERT *c; 2372 int idx = -1; 2373 2374 alg_a = cipher->algorithm_auth; 2375 c = s->cert; 2376 2377 if (alg_a & SSL_aRSA) { 2378 idx = SSL_PKEY_RSA; 2379 } else if ((alg_a & SSL_aECDSA) && 2380 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2381 idx = SSL_PKEY_ECC; 2382 if (idx == -1) { 2383 SSLerror(s, ERR_R_INTERNAL_ERROR); 2384 return (NULL); 2385 } 2386 2387 pkey = c->pkeys[idx].privatekey; 2388 if ((sigalg = ssl_sigalg_select(s, pkey)) == NULL) { 2389 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2390 return (NULL); 2391 } 2392 *pmd = sigalg->md(); 2393 *sap = sigalg; 2394 2395 return (pkey); 2396} 2397 2398size_t 2399ssl_dhe_params_auto_key_bits(SSL *s) 2400{ 2401 SSL_CERT_PKEY *cpk; 2402 int key_bits; 2403 2404 if (s->cert->dhe_params_auto == 2) { 2405 key_bits = 1024; 2406 } else if (s->s3->hs.cipher->algorithm_auth & SSL_aNULL) { 2407 key_bits = 1024; 2408 if (s->s3->hs.cipher->strength_bits == 256) 2409 key_bits = 3072; 2410 } else { 2411 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2412 return 0; 2413 if (cpk->privatekey == NULL || 2414 EVP_PKEY_get0_RSA(cpk->privatekey) == NULL) 2415 return 0; 2416 if ((key_bits = EVP_PKEY_bits(cpk->privatekey)) <= 0) 2417 return 0; 2418 } 2419 2420 return key_bits; 2421} 2422 2423static int 2424ssl_should_update_external_cache(SSL *s, int mode) 2425{ 2426 int cache_mode; 2427 2428 cache_mode = s->session_ctx->session_cache_mode; 2429 2430 /* Don't cache if mode says not to */ 2431 if ((cache_mode & mode) == 0) 2432 return 0; 2433 2434 /* if it is not already cached, cache it */ 2435 if (!s->hit) 2436 return 1; 2437 2438 /* If it's TLS 1.3, do it to match OpenSSL */ 2439 if (s->s3->hs.negotiated_tls_version >= TLS1_3_VERSION) 2440 return 1; 2441 2442 return 0; 2443} 2444 2445static int 2446ssl_should_update_internal_cache(SSL *s, int mode) 2447{ 2448 int cache_mode; 2449 2450 cache_mode = s->session_ctx->session_cache_mode; 2451 2452 /* Don't cache if mode says not to */ 2453 if ((cache_mode & mode) == 0) 2454 return 0; 2455 2456 /* If it is already cached, don't cache it again */ 2457 if (s->hit) 2458 return 0; 2459 2460 if ((cache_mode & SSL_SESS_CACHE_NO_INTERNAL_STORE) != 0) 2461 return 0; 2462 2463 /* If we are lesser than TLS 1.3, Cache it. */ 2464 if (s->s3->hs.negotiated_tls_version < TLS1_3_VERSION) 2465 return 1; 2466 2467 /* Below this we consider TLS 1.3 or later */ 2468 2469 /* If it's not a server, add it? OpenSSL does this. */ 2470 if (!s->server) 2471 return 1; 2472 2473 /* XXX if we support early data / PSK need to add */ 2474 2475 /* 2476 * If we have the remove session callback, we will want 2477 * to know about this even if it's a stateless ticket 2478 * from 1.3 so we can know when it is removed. 2479 */ 2480 if (s->session_ctx->remove_session_cb != NULL) 2481 return 1; 2482 2483 /* If we have set OP_NO_TICKET, cache it. */ 2484 if ((s->options & SSL_OP_NO_TICKET) != 0) 2485 return 1; 2486 2487 /* Otherwise do not cache */ 2488 return 0; 2489} 2490 2491void 2492ssl_update_cache(SSL *s, int mode) 2493{ 2494 int cache_mode, do_callback; 2495 2496 if (s->session->session_id_length == 0) 2497 return; 2498 2499 cache_mode = s->session_ctx->session_cache_mode; 2500 do_callback = ssl_should_update_external_cache(s, mode); 2501 2502 if (ssl_should_update_internal_cache(s, mode)) { 2503 /* 2504 * XXX should we fail if the add to the internal cache 2505 * fails? OpenSSL doesn't care.. 2506 */ 2507 (void) SSL_CTX_add_session(s->session_ctx, s->session); 2508 } 2509 2510 /* 2511 * Update the "external cache" by calling the new session 2512 * callback if present, even with TLS 1.3 without early data 2513 * "because some application just want to know about the 2514 * creation of a session and aren't doing a full cache". 2515 * Apparently, if they are doing a full cache, they'll have 2516 * some fun, but we endeavour to give application writers the 2517 * same glorious experience they expect from OpenSSL which 2518 * does it this way. 2519 */ 2520 if (do_callback && s->session_ctx->new_session_cb != NULL) { 2521 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2522 if (!s->session_ctx->new_session_cb(s, s->session)) 2523 SSL_SESSION_free(s->session); 2524 } 2525 2526 /* Auto flush every 255 connections. */ 2527 if (!(cache_mode & SSL_SESS_CACHE_NO_AUTO_CLEAR) && 2528 (cache_mode & mode) != 0) { 2529 int connections; 2530 if (mode & SSL_SESS_CACHE_CLIENT) 2531 connections = s->session_ctx->stats.sess_connect_good; 2532 else 2533 connections = s->session_ctx->stats.sess_accept_good; 2534 if ((connections & 0xff) == 0xff) 2535 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2536 } 2537} 2538 2539const SSL_METHOD * 2540SSL_get_ssl_method(SSL *s) 2541{ 2542 return (s->method); 2543} 2544LSSL_ALIAS(SSL_get_ssl_method); 2545 2546int 2547SSL_set_ssl_method(SSL *s, const SSL_METHOD *method) 2548{ 2549 int (*handshake_func)(SSL *) = NULL; 2550 int ret = 1; 2551 2552 if (s->method == method) 2553 return (ret); 2554 2555 if (s->handshake_func == s->method->ssl_connect) 2556 handshake_func = method->ssl_connect; 2557 else if (s->handshake_func == s->method->ssl_accept) 2558 handshake_func = method->ssl_accept; 2559 2560 if (s->method->version == method->version) { 2561 s->method = method; 2562 } else { 2563 s->method->ssl_free(s); 2564 s->method = method; 2565 ret = s->method->ssl_new(s); 2566 } 2567 s->handshake_func = handshake_func; 2568 2569 return (ret); 2570} 2571LSSL_ALIAS(SSL_set_ssl_method); 2572 2573int 2574SSL_get_error(const SSL *s, int i) 2575{ 2576 unsigned long l; 2577 int reason; 2578 BIO *bio; 2579 2580 if (i > 0) 2581 return (SSL_ERROR_NONE); 2582 2583 /* 2584 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2585 * etc, where we do encode the error. 2586 */ 2587 if ((l = ERR_peek_error()) != 0) { 2588 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2589 return (SSL_ERROR_SYSCALL); 2590 else 2591 return (SSL_ERROR_SSL); 2592 } 2593 2594 if (SSL_want_read(s)) { 2595 bio = SSL_get_rbio(s); 2596 if (BIO_should_read(bio)) { 2597 return (SSL_ERROR_WANT_READ); 2598 } else if (BIO_should_write(bio)) { 2599 /* 2600 * This one doesn't make too much sense... We never 2601 * try to write to the rbio, and an application 2602 * program where rbio and wbio are separate couldn't 2603 * even know what it should wait for. However if we 2604 * ever set s->rwstate incorrectly (so that we have 2605 * SSL_want_read(s) instead of SSL_want_write(s)) 2606 * and rbio and wbio *are* the same, this test works 2607 * around that bug; so it might be safer to keep it. 2608 */ 2609 return (SSL_ERROR_WANT_WRITE); 2610 } else if (BIO_should_io_special(bio)) { 2611 reason = BIO_get_retry_reason(bio); 2612 if (reason == BIO_RR_CONNECT) 2613 return (SSL_ERROR_WANT_CONNECT); 2614 else if (reason == BIO_RR_ACCEPT) 2615 return (SSL_ERROR_WANT_ACCEPT); 2616 else 2617 return (SSL_ERROR_SYSCALL); /* unknown */ 2618 } 2619 } 2620 2621 if (SSL_want_write(s)) { 2622 bio = SSL_get_wbio(s); 2623 if (BIO_should_write(bio)) { 2624 return (SSL_ERROR_WANT_WRITE); 2625 } else if (BIO_should_read(bio)) { 2626 /* 2627 * See above (SSL_want_read(s) with 2628 * BIO_should_write(bio)) 2629 */ 2630 return (SSL_ERROR_WANT_READ); 2631 } else if (BIO_should_io_special(bio)) { 2632 reason = BIO_get_retry_reason(bio); 2633 if (reason == BIO_RR_CONNECT) 2634 return (SSL_ERROR_WANT_CONNECT); 2635 else if (reason == BIO_RR_ACCEPT) 2636 return (SSL_ERROR_WANT_ACCEPT); 2637 else 2638 return (SSL_ERROR_SYSCALL); 2639 } 2640 } 2641 2642 if (SSL_want_x509_lookup(s)) 2643 return (SSL_ERROR_WANT_X509_LOOKUP); 2644 2645 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2646 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2647 return (SSL_ERROR_ZERO_RETURN); 2648 2649 return (SSL_ERROR_SYSCALL); 2650} 2651LSSL_ALIAS(SSL_get_error); 2652 2653int 2654SSL_CTX_set_quic_method(SSL_CTX *ctx, const SSL_QUIC_METHOD *quic_method) 2655{ 2656 if (ctx->method->dtls) 2657 return 0; 2658 2659 ctx->quic_method = quic_method; 2660 2661 return 1; 2662} 2663LSSL_ALIAS(SSL_CTX_set_quic_method); 2664 2665int 2666SSL_set_quic_method(SSL *ssl, const SSL_QUIC_METHOD *quic_method) 2667{ 2668 if (ssl->method->dtls) 2669 return 0; 2670 2671 ssl->quic_method = quic_method; 2672 2673 return 1; 2674} 2675LSSL_ALIAS(SSL_set_quic_method); 2676 2677size_t 2678SSL_quic_max_handshake_flight_len(const SSL *ssl, 2679 enum ssl_encryption_level_t level) 2680{ 2681 size_t flight_len; 2682 2683 /* Limit flights to 16K when there are no large certificate messages. */ 2684 flight_len = 16384; 2685 2686 switch (level) { 2687 case ssl_encryption_initial: 2688 return flight_len; 2689 2690 case ssl_encryption_early_data: 2691 /* QUIC does not send EndOfEarlyData. */ 2692 return 0; 2693 2694 case ssl_encryption_handshake: 2695 if (ssl->server) { 2696 /* 2697 * Servers may receive Certificate message if configured 2698 * to request client certificates. 2699 */ 2700 if ((SSL_get_verify_mode(ssl) & SSL_VERIFY_PEER) != 0 && 2701 ssl->max_cert_list > flight_len) 2702 flight_len = ssl->max_cert_list; 2703 } else { 2704 /* 2705 * Clients may receive both Certificate message and a 2706 * CertificateRequest message. 2707 */ 2708 if (ssl->max_cert_list * 2 > flight_len) 2709 flight_len = ssl->max_cert_list * 2; 2710 } 2711 return flight_len; 2712 case ssl_encryption_application: 2713 /* 2714 * Note there is not actually a bound on the number of 2715 * NewSessionTickets one may send in a row. This level may need 2716 * more involved flow control. 2717 */ 2718 return flight_len; 2719 } 2720 2721 return 0; 2722} 2723LSSL_ALIAS(SSL_quic_max_handshake_flight_len); 2724 2725enum ssl_encryption_level_t 2726SSL_quic_read_level(const SSL *ssl) 2727{ 2728 return ssl->s3->hs.tls13.quic_read_level; 2729} 2730LSSL_ALIAS(SSL_quic_read_level); 2731 2732enum ssl_encryption_level_t 2733SSL_quic_write_level(const SSL *ssl) 2734{ 2735 return ssl->s3->hs.tls13.quic_write_level; 2736} 2737LSSL_ALIAS(SSL_quic_write_level); 2738 2739int 2740SSL_provide_quic_data(SSL *ssl, enum ssl_encryption_level_t level, 2741 const uint8_t *data, size_t len) 2742{ 2743 if (!SSL_is_quic(ssl)) { 2744 SSLerror(ssl, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2745 return 0; 2746 } 2747 2748 if (level != SSL_quic_read_level(ssl)) { 2749 SSLerror(ssl, SSL_R_WRONG_ENCRYPTION_LEVEL_RECEIVED); 2750 return 0; 2751 } 2752 2753 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) { 2754 ssl->s3->hs.tls13.quic_read_buffer = tls_buffer_new(0); 2755 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) { 2756 SSLerror(ssl, ERR_R_MALLOC_FAILURE); 2757 return 0; 2758 } 2759 } 2760 2761 /* XXX - note that this does not currently downsize. */ 2762 tls_buffer_set_capacity_limit(ssl->s3->hs.tls13.quic_read_buffer, 2763 SSL_quic_max_handshake_flight_len(ssl, level)); 2764 2765 /* 2766 * XXX - an append that fails due to exceeding capacity should set 2767 * SSL_R_EXCESSIVE_MESSAGE_SIZE. 2768 */ 2769 return tls_buffer_append(ssl->s3->hs.tls13.quic_read_buffer, data, len); 2770} 2771LSSL_ALIAS(SSL_provide_quic_data); 2772 2773int 2774SSL_process_quic_post_handshake(SSL *ssl) 2775{ 2776 /* XXX - this needs to run PHH received. */ 2777 return 1; 2778} 2779LSSL_ALIAS(SSL_process_quic_post_handshake); 2780 2781int 2782SSL_do_handshake(SSL *s) 2783{ 2784 if (s->handshake_func == NULL) { 2785 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2786 return (-1); 2787 } 2788 2789 s->method->ssl_renegotiate_check(s); 2790 2791 if (!SSL_in_init(s) && !SSL_in_before(s)) 2792 return 1; 2793 2794 return s->handshake_func(s); 2795} 2796LSSL_ALIAS(SSL_do_handshake); 2797 2798/* 2799 * For the next 2 functions, SSL_clear() sets shutdown and so 2800 * one of these calls will reset it 2801 */ 2802void 2803SSL_set_accept_state(SSL *s) 2804{ 2805 s->server = 1; 2806 s->shutdown = 0; 2807 s->s3->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2808 s->handshake_func = s->method->ssl_accept; 2809 ssl_clear_cipher_state(s); 2810} 2811LSSL_ALIAS(SSL_set_accept_state); 2812 2813void 2814SSL_set_connect_state(SSL *s) 2815{ 2816 s->server = 0; 2817 s->shutdown = 0; 2818 s->s3->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2819 s->handshake_func = s->method->ssl_connect; 2820 ssl_clear_cipher_state(s); 2821} 2822LSSL_ALIAS(SSL_set_connect_state); 2823 2824int 2825ssl_undefined_function(SSL *s) 2826{ 2827 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2828 return (0); 2829} 2830 2831int 2832ssl_undefined_void_function(void) 2833{ 2834 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2835 return (0); 2836} 2837 2838int 2839ssl_undefined_const_function(const SSL *s) 2840{ 2841 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2842 return (0); 2843} 2844 2845const char * 2846ssl_version_string(int ver) 2847{ 2848 switch (ver) { 2849 case TLS1_VERSION: 2850 return (SSL_TXT_TLSV1); 2851 case TLS1_1_VERSION: 2852 return (SSL_TXT_TLSV1_1); 2853 case TLS1_2_VERSION: 2854 return (SSL_TXT_TLSV1_2); 2855 case TLS1_3_VERSION: 2856 return (SSL_TXT_TLSV1_3); 2857 case DTLS1_VERSION: 2858 return (SSL_TXT_DTLS1); 2859 case DTLS1_2_VERSION: 2860 return (SSL_TXT_DTLS1_2); 2861 default: 2862 return ("unknown"); 2863 } 2864} 2865 2866const char * 2867SSL_get_version(const SSL *s) 2868{ 2869 return ssl_version_string(s->version); 2870} 2871LSSL_ALIAS(SSL_get_version); 2872 2873SSL * 2874SSL_dup(SSL *s) 2875{ 2876 STACK_OF(X509_NAME) *sk; 2877 X509_NAME *xn; 2878 SSL *ret; 2879 int i; 2880 2881 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2882 goto err; 2883 2884 ret->version = s->version; 2885 ret->method = s->method; 2886 2887 if (s->session != NULL) { 2888 if (!SSL_copy_session_id(ret, s)) 2889 goto err; 2890 } else { 2891 /* 2892 * No session has been established yet, so we have to expect 2893 * that s->cert or ret->cert will be changed later -- 2894 * they should not both point to the same object, 2895 * and thus we can't use SSL_copy_session_id. 2896 */ 2897 2898 ret->method->ssl_free(ret); 2899 ret->method = s->method; 2900 ret->method->ssl_new(ret); 2901 2902 ssl_cert_free(ret->cert); 2903 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2904 goto err; 2905 2906 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2907 s->sid_ctx_length)) 2908 goto err; 2909 } 2910 2911 ret->options = s->options; 2912 ret->mode = s->mode; 2913 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2914 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2915 ret->msg_callback = s->msg_callback; 2916 ret->msg_callback_arg = s->msg_callback_arg; 2917 SSL_set_verify(ret, SSL_get_verify_mode(s), 2918 SSL_get_verify_callback(s)); 2919 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2920 ret->generate_session_id = s->generate_session_id; 2921 2922 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2923 2924 /* copy app data, a little dangerous perhaps */ 2925 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2926 &ret->ex_data, &s->ex_data)) 2927 goto err; 2928 2929 /* setup rbio, and wbio */ 2930 if (s->rbio != NULL) { 2931 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2932 goto err; 2933 } 2934 if (s->wbio != NULL) { 2935 if (s->wbio != s->rbio) { 2936 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2937 goto err; 2938 } else 2939 ret->wbio = ret->rbio; 2940 } 2941 ret->rwstate = s->rwstate; 2942 ret->in_handshake = s->in_handshake; 2943 ret->handshake_func = s->handshake_func; 2944 ret->server = s->server; 2945 ret->renegotiate = s->renegotiate; 2946 ret->new_session = s->new_session; 2947 ret->quiet_shutdown = s->quiet_shutdown; 2948 ret->shutdown = s->shutdown; 2949 /* SSL_dup does not really work at any state, though */ 2950 ret->s3->hs.state = s->s3->hs.state; 2951 ret->rstate = s->rstate; 2952 2953 /* 2954 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2955 * ret->init_off 2956 */ 2957 ret->init_num = 0; 2958 2959 ret->hit = s->hit; 2960 2961 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2962 2963 if (s->cipher_list != NULL) { 2964 if ((ret->cipher_list = 2965 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2966 goto err; 2967 } 2968 if (s->cipher_list_tls13 != NULL) { 2969 if ((ret->cipher_list_tls13 = 2970 sk_SSL_CIPHER_dup(s->cipher_list_tls13)) == NULL) 2971 goto err; 2972 } 2973 2974 /* Dup the client_CA list */ 2975 if (s->client_CA != NULL) { 2976 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 2977 ret->client_CA = sk; 2978 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2979 xn = sk_X509_NAME_value(sk, i); 2980 if (sk_X509_NAME_set(sk, i, 2981 X509_NAME_dup(xn)) == NULL) { 2982 X509_NAME_free(xn); 2983 goto err; 2984 } 2985 } 2986 } 2987 2988 return ret; 2989 err: 2990 SSL_free(ret); 2991 return NULL; 2992} 2993LSSL_ALIAS(SSL_dup); 2994 2995void 2996ssl_clear_cipher_state(SSL *s) 2997{ 2998 tls12_record_layer_clear_read_state(s->rl); 2999 tls12_record_layer_clear_write_state(s->rl); 3000} 3001 3002void 3003ssl_info_callback(const SSL *s, int type, int value) 3004{ 3005 ssl_info_callback_fn *cb; 3006 3007 if ((cb = s->info_callback) == NULL) 3008 cb = s->ctx->info_callback; 3009 if (cb != NULL) 3010 cb(s, type, value); 3011} 3012 3013void 3014ssl_msg_callback(SSL *s, int is_write, int content_type, 3015 const void *msg_buf, size_t msg_len) 3016{ 3017 if (s->msg_callback == NULL) 3018 return; 3019 3020 s->msg_callback(is_write, s->version, content_type, 3021 msg_buf, msg_len, s, s->msg_callback_arg); 3022} 3023 3024void 3025ssl_msg_callback_cbs(SSL *s, int is_write, int content_type, CBS *cbs) 3026{ 3027 ssl_msg_callback(s, is_write, content_type, CBS_data(cbs), CBS_len(cbs)); 3028} 3029 3030/* Fix this function so that it takes an optional type parameter */ 3031X509 * 3032SSL_get_certificate(const SSL *s) 3033{ 3034 return (s->cert->key->x509); 3035} 3036LSSL_ALIAS(SSL_get_certificate); 3037 3038/* Fix this function so that it takes an optional type parameter */ 3039EVP_PKEY * 3040SSL_get_privatekey(const SSL *s) 3041{ 3042 return (s->cert->key->privatekey); 3043} 3044LSSL_ALIAS(SSL_get_privatekey); 3045 3046const SSL_CIPHER * 3047SSL_get_current_cipher(const SSL *s) 3048{ 3049 if ((s->session != NULL) && (s->session->cipher != NULL)) 3050 return (s->session->cipher); 3051 return (NULL); 3052} 3053LSSL_ALIAS(SSL_get_current_cipher); 3054const void * 3055SSL_get_current_compression(SSL *s) 3056{ 3057 return (NULL); 3058} 3059LSSL_ALIAS(SSL_get_current_compression); 3060 3061const void * 3062SSL_get_current_expansion(SSL *s) 3063{ 3064 return (NULL); 3065} 3066LSSL_ALIAS(SSL_get_current_expansion); 3067 3068size_t 3069SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 3070{ 3071 size_t len = sizeof(s->s3->client_random); 3072 3073 if (out == NULL) 3074 return len; 3075 3076 if (len > max_out) 3077 len = max_out; 3078 3079 memcpy(out, s->s3->client_random, len); 3080 3081 return len; 3082} 3083LSSL_ALIAS(SSL_get_client_random); 3084 3085size_t 3086SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 3087{ 3088 size_t len = sizeof(s->s3->server_random); 3089 3090 if (out == NULL) 3091 return len; 3092 3093 if (len > max_out) 3094 len = max_out; 3095 3096 memcpy(out, s->s3->server_random, len); 3097 3098 return len; 3099} 3100LSSL_ALIAS(SSL_get_server_random); 3101 3102int 3103ssl_init_wbio_buffer(SSL *s, int push) 3104{ 3105 BIO *bbio; 3106 3107 if (s->bbio == NULL) { 3108 bbio = BIO_new(BIO_f_buffer()); 3109 if (bbio == NULL) 3110 return (0); 3111 s->bbio = bbio; 3112 } else { 3113 bbio = s->bbio; 3114 if (s->bbio == s->wbio) 3115 s->wbio = BIO_pop(s->wbio); 3116 } 3117 (void)BIO_reset(bbio); 3118/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 3119 if (!BIO_set_read_buffer_size(bbio, 1)) { 3120 SSLerror(s, ERR_R_BUF_LIB); 3121 return (0); 3122 } 3123 if (push) { 3124 if (s->wbio != bbio) 3125 s->wbio = BIO_push(bbio, s->wbio); 3126 } else { 3127 if (s->wbio == bbio) 3128 s->wbio = BIO_pop(bbio); 3129 } 3130 return (1); 3131} 3132 3133void 3134ssl_free_wbio_buffer(SSL *s) 3135{ 3136 if (s == NULL) 3137 return; 3138 3139 if (s->bbio == NULL) 3140 return; 3141 3142 if (s->bbio == s->wbio) { 3143 /* remove buffering */ 3144 s->wbio = BIO_pop(s->wbio); 3145 } 3146 BIO_free(s->bbio); 3147 s->bbio = NULL; 3148} 3149 3150void 3151SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 3152{ 3153 ctx->quiet_shutdown = mode; 3154} 3155LSSL_ALIAS(SSL_CTX_set_quiet_shutdown); 3156 3157int 3158SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 3159{ 3160 return (ctx->quiet_shutdown); 3161} 3162LSSL_ALIAS(SSL_CTX_get_quiet_shutdown); 3163 3164void 3165SSL_set_quiet_shutdown(SSL *s, int mode) 3166{ 3167 s->quiet_shutdown = mode; 3168} 3169LSSL_ALIAS(SSL_set_quiet_shutdown); 3170 3171int 3172SSL_get_quiet_shutdown(const SSL *s) 3173{ 3174 return (s->quiet_shutdown); 3175} 3176LSSL_ALIAS(SSL_get_quiet_shutdown); 3177 3178void 3179SSL_set_shutdown(SSL *s, int mode) 3180{ 3181 s->shutdown = mode; 3182} 3183LSSL_ALIAS(SSL_set_shutdown); 3184 3185int 3186SSL_get_shutdown(const SSL *s) 3187{ 3188 return (s->shutdown); 3189} 3190LSSL_ALIAS(SSL_get_shutdown); 3191 3192int 3193SSL_version(const SSL *s) 3194{ 3195 return (s->version); 3196} 3197LSSL_ALIAS(SSL_version); 3198 3199SSL_CTX * 3200SSL_get_SSL_CTX(const SSL *ssl) 3201{ 3202 return (ssl->ctx); 3203} 3204LSSL_ALIAS(SSL_get_SSL_CTX); 3205 3206SSL_CTX * 3207SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 3208{ 3209 SSL_CERT *new_cert; 3210 3211 if (ctx == NULL) 3212 ctx = ssl->initial_ctx; 3213 if (ssl->ctx == ctx) 3214 return (ssl->ctx); 3215 3216 if ((new_cert = ssl_cert_dup(ctx->cert)) == NULL) 3217 return NULL; 3218 ssl_cert_free(ssl->cert); 3219 ssl->cert = new_cert; 3220 3221 SSL_CTX_up_ref(ctx); 3222 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 3223 ssl->ctx = ctx; 3224 3225 return (ssl->ctx); 3226} 3227LSSL_ALIAS(SSL_set_SSL_CTX); 3228 3229int 3230SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 3231{ 3232 return (X509_STORE_set_default_paths(ctx->cert_store)); 3233} 3234LSSL_ALIAS(SSL_CTX_set_default_verify_paths); 3235 3236int 3237SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 3238 const char *CApath) 3239{ 3240 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 3241} 3242LSSL_ALIAS(SSL_CTX_load_verify_locations); 3243 3244int 3245SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 3246{ 3247 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 3248} 3249LSSL_ALIAS(SSL_CTX_load_verify_mem); 3250 3251void 3252SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 3253{ 3254 ssl->info_callback = cb; 3255} 3256LSSL_ALIAS(SSL_set_info_callback); 3257 3258void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 3259{ 3260 return (ssl->info_callback); 3261} 3262LSSL_ALIAS(SSL_get_info_callback); 3263 3264int 3265SSL_state(const SSL *ssl) 3266{ 3267 return (ssl->s3->hs.state); 3268} 3269LSSL_ALIAS(SSL_state); 3270 3271void 3272SSL_set_state(SSL *ssl, int state) 3273{ 3274 ssl->s3->hs.state = state; 3275} 3276LSSL_ALIAS(SSL_set_state); 3277 3278void 3279SSL_set_verify_result(SSL *ssl, long arg) 3280{ 3281 ssl->verify_result = arg; 3282} 3283LSSL_ALIAS(SSL_set_verify_result); 3284 3285long 3286SSL_get_verify_result(const SSL *ssl) 3287{ 3288 return (ssl->verify_result); 3289} 3290LSSL_ALIAS(SSL_get_verify_result); 3291 3292int 3293SSL_verify_client_post_handshake(SSL *ssl) 3294{ 3295 return 0; 3296} 3297LSSL_ALIAS(SSL_verify_client_post_handshake); 3298 3299void 3300SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val) 3301{ 3302 return; 3303} 3304LSSL_ALIAS(SSL_CTX_set_post_handshake_auth); 3305 3306void 3307SSL_set_post_handshake_auth(SSL *ssl, int val) 3308{ 3309 return; 3310} 3311LSSL_ALIAS(SSL_set_post_handshake_auth); 3312 3313int 3314SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3315 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3316{ 3317 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 3318 new_func, dup_func, free_func)); 3319} 3320LSSL_ALIAS(SSL_get_ex_new_index); 3321 3322int 3323SSL_set_ex_data(SSL *s, int idx, void *arg) 3324{ 3325 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3326} 3327LSSL_ALIAS(SSL_set_ex_data); 3328 3329void * 3330SSL_get_ex_data(const SSL *s, int idx) 3331{ 3332 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3333} 3334LSSL_ALIAS(SSL_get_ex_data); 3335 3336int 3337SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3338 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3339{ 3340 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 3341 new_func, dup_func, free_func)); 3342} 3343LSSL_ALIAS(SSL_CTX_get_ex_new_index); 3344 3345int 3346SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 3347{ 3348 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3349} 3350LSSL_ALIAS(SSL_CTX_set_ex_data); 3351 3352void * 3353SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 3354{ 3355 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3356} 3357LSSL_ALIAS(SSL_CTX_get_ex_data); 3358 3359int 3360ssl_ok(SSL *s) 3361{ 3362 return (1); 3363} 3364 3365X509_STORE * 3366SSL_CTX_get_cert_store(const SSL_CTX *ctx) 3367{ 3368 return (ctx->cert_store); 3369} 3370LSSL_ALIAS(SSL_CTX_get_cert_store); 3371 3372void 3373SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 3374{ 3375 X509_STORE_free(ctx->cert_store); 3376 ctx->cert_store = store; 3377} 3378LSSL_ALIAS(SSL_CTX_set_cert_store); 3379 3380X509 * 3381SSL_CTX_get0_certificate(const SSL_CTX *ctx) 3382{ 3383 if (ctx->cert == NULL) 3384 return NULL; 3385 3386 return ctx->cert->key->x509; 3387} 3388LSSL_ALIAS(SSL_CTX_get0_certificate); 3389 3390EVP_PKEY * 3391SSL_CTX_get0_privatekey(const SSL_CTX *ctx) 3392{ 3393 if (ctx->cert == NULL) 3394 return NULL; 3395 3396 return ctx->cert->key->privatekey; 3397} 3398LSSL_ALIAS(SSL_CTX_get0_privatekey); 3399 3400int 3401SSL_want(const SSL *s) 3402{ 3403 return (s->rwstate); 3404} 3405LSSL_ALIAS(SSL_want); 3406 3407void 3408SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 3409 int keylength)) 3410{ 3411 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3412} 3413LSSL_ALIAS(SSL_CTX_set_tmp_rsa_callback); 3414 3415void 3416SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 3417 int keylength)) 3418{ 3419 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3420} 3421LSSL_ALIAS(SSL_set_tmp_rsa_callback); 3422 3423void 3424SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 3425 int keylength)) 3426{ 3427 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3428} 3429LSSL_ALIAS(SSL_CTX_set_tmp_dh_callback); 3430 3431void 3432SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 3433 int keylength)) 3434{ 3435 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3436} 3437LSSL_ALIAS(SSL_set_tmp_dh_callback); 3438 3439void 3440SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 3441 int is_export, int keylength)) 3442{ 3443 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 3444 (void (*)(void))ecdh); 3445} 3446LSSL_ALIAS(SSL_CTX_set_tmp_ecdh_callback); 3447 3448void 3449SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 3450 int keylength)) 3451{ 3452 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 3453} 3454LSSL_ALIAS(SSL_set_tmp_ecdh_callback); 3455 3456 3457void 3458SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 3459 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3460{ 3461 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 3462 (void (*)(void))cb); 3463} 3464LSSL_ALIAS(SSL_CTX_set_msg_callback); 3465 3466void 3467SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 3468 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3469{ 3470 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3471} 3472LSSL_ALIAS(SSL_set_msg_callback); 3473 3474int 3475SSL_cache_hit(SSL *s) 3476{ 3477 return (s->hit); 3478} 3479LSSL_ALIAS(SSL_cache_hit); 3480 3481int 3482SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 3483{ 3484 return ctx->min_proto_version; 3485} 3486LSSL_ALIAS(SSL_CTX_get_min_proto_version); 3487 3488int 3489SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 3490{ 3491 return ssl_version_set_min(ctx->method, version, 3492 ctx->max_tls_version, &ctx->min_tls_version, 3493 &ctx->min_proto_version); 3494} 3495LSSL_ALIAS(SSL_CTX_set_min_proto_version); 3496 3497int 3498SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 3499{ 3500 return ctx->max_proto_version; 3501} 3502LSSL_ALIAS(SSL_CTX_get_max_proto_version); 3503 3504int 3505SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 3506{ 3507 return ssl_version_set_max(ctx->method, version, 3508 ctx->min_tls_version, &ctx->max_tls_version, 3509 &ctx->max_proto_version); 3510} 3511LSSL_ALIAS(SSL_CTX_set_max_proto_version); 3512 3513int 3514SSL_get_min_proto_version(SSL *ssl) 3515{ 3516 return ssl->min_proto_version; 3517} 3518LSSL_ALIAS(SSL_get_min_proto_version); 3519 3520int 3521SSL_set_min_proto_version(SSL *ssl, uint16_t version) 3522{ 3523 return ssl_version_set_min(ssl->method, version, 3524 ssl->max_tls_version, &ssl->min_tls_version, 3525 &ssl->min_proto_version); 3526} 3527LSSL_ALIAS(SSL_set_min_proto_version); 3528int 3529SSL_get_max_proto_version(SSL *ssl) 3530{ 3531 return ssl->max_proto_version; 3532} 3533LSSL_ALIAS(SSL_get_max_proto_version); 3534 3535int 3536SSL_set_max_proto_version(SSL *ssl, uint16_t version) 3537{ 3538 return ssl_version_set_max(ssl->method, version, 3539 ssl->min_tls_version, &ssl->max_tls_version, 3540 &ssl->max_proto_version); 3541} 3542LSSL_ALIAS(SSL_set_max_proto_version); 3543 3544const SSL_METHOD * 3545SSL_CTX_get_ssl_method(const SSL_CTX *ctx) 3546{ 3547 return ctx->method; 3548} 3549LSSL_ALIAS(SSL_CTX_get_ssl_method); 3550 3551int 3552SSL_CTX_get_security_level(const SSL_CTX *ctx) 3553{ 3554 return ctx->cert->security_level; 3555} 3556LSSL_ALIAS(SSL_CTX_get_security_level); 3557 3558void 3559SSL_CTX_set_security_level(SSL_CTX *ctx, int level) 3560{ 3561 ctx->cert->security_level = level; 3562} 3563LSSL_ALIAS(SSL_CTX_set_security_level); 3564 3565int 3566SSL_get_security_level(const SSL *ssl) 3567{ 3568 return ssl->cert->security_level; 3569} 3570LSSL_ALIAS(SSL_get_security_level); 3571 3572void 3573SSL_set_security_level(SSL *ssl, int level) 3574{ 3575 ssl->cert->security_level = level; 3576} 3577LSSL_ALIAS(SSL_set_security_level); 3578 3579int 3580SSL_is_quic(const SSL *ssl) 3581{ 3582 return ssl->quic_method != NULL; 3583} 3584LSSL_ALIAS(SSL_is_quic); 3585 3586int 3587SSL_set_quic_transport_params(SSL *ssl, const uint8_t *params, 3588 size_t params_len) 3589{ 3590 freezero(ssl->quic_transport_params, 3591 ssl->quic_transport_params_len); 3592 ssl->quic_transport_params = NULL; 3593 ssl->quic_transport_params_len = 0; 3594 3595 if ((ssl->quic_transport_params = malloc(params_len)) == NULL) 3596 return 0; 3597 3598 memcpy(ssl->quic_transport_params, params, params_len); 3599 ssl->quic_transport_params_len = params_len; 3600 3601 return 1; 3602} 3603LSSL_ALIAS(SSL_set_quic_transport_params); 3604 3605void 3606SSL_get_peer_quic_transport_params(const SSL *ssl, const uint8_t **out_params, 3607 size_t *out_params_len) 3608{ 3609 *out_params = ssl->s3->peer_quic_transport_params; 3610 *out_params_len = ssl->s3->peer_quic_transport_params_len; 3611} 3612LSSL_ALIAS(SSL_get_peer_quic_transport_params); 3613 3614void 3615SSL_set_quic_use_legacy_codepoint(SSL *ssl, int use_legacy) 3616{ 3617 /* Not supported. */ 3618} 3619LSSL_ALIAS(SSL_set_quic_use_legacy_codepoint); 3620