ssl_lib.c revision 1.322
1/* $OpenBSD: ssl_lib.c,v 1.322 2024/03/27 06:47:52 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 164const char *SSL_version_str = OPENSSL_VERSION_TEXT; 165 166int 167SSL_clear(SSL *s) 168{ 169 if (s->method == NULL) { 170 SSLerror(s, SSL_R_NO_METHOD_SPECIFIED); 171 return (0); 172 } 173 174 if (ssl_clear_bad_session(s)) { 175 SSL_SESSION_free(s->session); 176 s->session = NULL; 177 } 178 179 s->error = 0; 180 s->hit = 0; 181 s->shutdown = 0; 182 183 if (s->renegotiate) { 184 SSLerror(s, ERR_R_INTERNAL_ERROR); 185 return (0); 186 } 187 188 s->version = s->method->version; 189 s->client_version = s->version; 190 s->rwstate = SSL_NOTHING; 191 s->rstate = SSL_ST_READ_HEADER; 192 193 tls13_ctx_free(s->tls13); 194 s->tls13 = NULL; 195 196 ssl3_release_init_buffer(s); 197 198 ssl_clear_cipher_state(s); 199 200 s->first_packet = 0; 201 202 /* 203 * Check to see if we were changed into a different method, if 204 * so, revert back if we are not doing session-id reuse. 205 */ 206 if (!s->in_handshake && (s->session == NULL) && 207 (s->method != s->ctx->method)) { 208 s->method->ssl_free(s); 209 s->method = s->ctx->method; 210 if (!s->method->ssl_new(s)) 211 return (0); 212 } else 213 s->method->ssl_clear(s); 214 215 return (1); 216} 217LSSL_ALIAS(SSL_clear); 218 219/* Used to change an SSL_CTXs default SSL method type */ 220int 221SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 222{ 223 STACK_OF(SSL_CIPHER) *ciphers; 224 225 ctx->method = meth; 226 227 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 228 ctx->cipher_list_tls13, SSL_DEFAULT_CIPHER_LIST, 229 ctx->cert); 230 if (ciphers == NULL || sk_SSL_CIPHER_num(ciphers) <= 0) { 231 SSLerrorx(SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 232 return (0); 233 } 234 return (1); 235} 236LSSL_ALIAS(SSL_CTX_set_ssl_version); 237 238SSL * 239SSL_new(SSL_CTX *ctx) 240{ 241 SSL *s; 242 CBS cbs; 243 244 if (ctx == NULL) { 245 SSLerrorx(SSL_R_NULL_SSL_CTX); 246 return (NULL); 247 } 248 if (ctx->method == NULL) { 249 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 250 return (NULL); 251 } 252 253 if ((s = calloc(1, sizeof(*s))) == NULL) 254 goto err; 255 256 if ((s->rl = tls12_record_layer_new()) == NULL) 257 goto err; 258 259 s->min_tls_version = ctx->min_tls_version; 260 s->max_tls_version = ctx->max_tls_version; 261 s->min_proto_version = ctx->min_proto_version; 262 s->max_proto_version = ctx->max_proto_version; 263 264 s->options = ctx->options; 265 s->mode = ctx->mode; 266 s->max_cert_list = ctx->max_cert_list; 267 s->num_tickets = ctx->num_tickets; 268 269 if ((s->cert = ssl_cert_dup(ctx->cert)) == NULL) 270 goto err; 271 272 s->read_ahead = ctx->read_ahead; 273 s->msg_callback = ctx->msg_callback; 274 s->msg_callback_arg = ctx->msg_callback_arg; 275 s->verify_mode = ctx->verify_mode; 276 s->sid_ctx_length = ctx->sid_ctx_length; 277 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 278 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); 279 s->verify_callback = ctx->default_verify_callback; 280 s->generate_session_id = ctx->generate_session_id; 281 282 s->param = X509_VERIFY_PARAM_new(); 283 if (!s->param) 284 goto err; 285 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 286 s->quiet_shutdown = ctx->quiet_shutdown; 287 s->max_send_fragment = ctx->max_send_fragment; 288 289 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 290 s->ctx = ctx; 291 s->tlsext_debug_cb = NULL; 292 s->tlsext_debug_arg = NULL; 293 s->tlsext_ticket_expected = 0; 294 s->tlsext_status_type = -1; 295 s->tlsext_status_expected = 0; 296 s->tlsext_ocsp_ids = NULL; 297 s->tlsext_ocsp_exts = NULL; 298 s->tlsext_ocsp_resp = NULL; 299 s->tlsext_ocsp_resp_len = 0; 300 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 301 s->initial_ctx = ctx; 302 303 if (!tlsext_randomize_build_order(s)) 304 goto err; 305 306 if (ctx->tlsext_ecpointformatlist != NULL) { 307 s->tlsext_ecpointformatlist = 308 calloc(ctx->tlsext_ecpointformatlist_length, 309 sizeof(ctx->tlsext_ecpointformatlist[0])); 310 if (s->tlsext_ecpointformatlist == NULL) 311 goto err; 312 memcpy(s->tlsext_ecpointformatlist, 313 ctx->tlsext_ecpointformatlist, 314 ctx->tlsext_ecpointformatlist_length * 315 sizeof(ctx->tlsext_ecpointformatlist[0])); 316 s->tlsext_ecpointformatlist_length = 317 ctx->tlsext_ecpointformatlist_length; 318 } 319 if (ctx->tlsext_supportedgroups != NULL) { 320 s->tlsext_supportedgroups = 321 calloc(ctx->tlsext_supportedgroups_length, 322 sizeof(ctx->tlsext_supportedgroups[0])); 323 if (s->tlsext_supportedgroups == NULL) 324 goto err; 325 memcpy(s->tlsext_supportedgroups, 326 ctx->tlsext_supportedgroups, 327 ctx->tlsext_supportedgroups_length * 328 sizeof(ctx->tlsext_supportedgroups[0])); 329 s->tlsext_supportedgroups_length = 330 ctx->tlsext_supportedgroups_length; 331 } 332 333 CBS_init(&cbs, ctx->alpn_client_proto_list, 334 ctx->alpn_client_proto_list_len); 335 if (!CBS_stow(&cbs, &s->alpn_client_proto_list, 336 &s->alpn_client_proto_list_len)) 337 goto err; 338 339 s->verify_result = X509_V_OK; 340 341 s->method = ctx->method; 342 s->quic_method = ctx->quic_method; 343 344 if (!s->method->ssl_new(s)) 345 goto err; 346 347 s->references = 1; 348 s->server = ctx->method->server; 349 350 SSL_clear(s); 351 352 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 353 354 return (s); 355 356 err: 357 SSL_free(s); 358 SSLerrorx(ERR_R_MALLOC_FAILURE); 359 return (NULL); 360} 361LSSL_ALIAS(SSL_new); 362 363int 364SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 365 unsigned int sid_ctx_len) 366{ 367 if (sid_ctx_len > sizeof ctx->sid_ctx) { 368 SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 369 return (0); 370 } 371 ctx->sid_ctx_length = sid_ctx_len; 372 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 373 374 return (1); 375} 376LSSL_ALIAS(SSL_CTX_set_session_id_context); 377 378int 379SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 380 unsigned int sid_ctx_len) 381{ 382 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 383 SSLerror(ssl, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 384 return (0); 385 } 386 ssl->sid_ctx_length = sid_ctx_len; 387 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 388 389 return (1); 390} 391LSSL_ALIAS(SSL_set_session_id_context); 392 393int 394SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 395{ 396 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 397 ctx->generate_session_id = cb; 398 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 399 return (1); 400} 401LSSL_ALIAS(SSL_CTX_set_generate_session_id); 402 403int 404SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 405{ 406 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 407 ssl->generate_session_id = cb; 408 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 409 return (1); 410} 411LSSL_ALIAS(SSL_set_generate_session_id); 412 413int 414SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 415 unsigned int id_len) 416{ 417 /* 418 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 419 * shows how we can "construct" a session to give us the desired 420 * check - ie. to find if there's a session in the hash table 421 * that would conflict with any new session built out of this 422 * id/id_len and the ssl_version in use by this SSL. 423 */ 424 SSL_SESSION r, *p; 425 426 if (id_len > sizeof r.session_id) 427 return (0); 428 429 r.ssl_version = ssl->version; 430 r.session_id_length = id_len; 431 memcpy(r.session_id, id, id_len); 432 433 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 434 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r); 435 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 436 return (p != NULL); 437} 438LSSL_ALIAS(SSL_has_matching_session_id); 439 440int 441SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 442{ 443 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 444} 445LSSL_ALIAS(SSL_CTX_set_purpose); 446 447int 448SSL_set_purpose(SSL *s, int purpose) 449{ 450 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 451} 452LSSL_ALIAS(SSL_set_purpose); 453 454int 455SSL_CTX_set_trust(SSL_CTX *s, int trust) 456{ 457 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 458} 459LSSL_ALIAS(SSL_CTX_set_trust); 460 461int 462SSL_set_trust(SSL *s, int trust) 463{ 464 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 465} 466LSSL_ALIAS(SSL_set_trust); 467 468int 469SSL_set1_host(SSL *s, const char *hostname) 470{ 471 struct in_addr ina; 472 struct in6_addr in6a; 473 474 if (hostname != NULL && *hostname != '\0' && 475 (inet_pton(AF_INET, hostname, &ina) == 1 || 476 inet_pton(AF_INET6, hostname, &in6a) == 1)) 477 return X509_VERIFY_PARAM_set1_ip_asc(s->param, hostname); 478 else 479 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); 480} 481LSSL_ALIAS(SSL_set1_host); 482 483void 484SSL_set_hostflags(SSL *s, unsigned int flags) 485{ 486 X509_VERIFY_PARAM_set_hostflags(s->param, flags); 487} 488LSSL_ALIAS(SSL_set_hostflags); 489 490const char * 491SSL_get0_peername(SSL *s) 492{ 493 return X509_VERIFY_PARAM_get0_peername(s->param); 494} 495LSSL_ALIAS(SSL_get0_peername); 496 497X509_VERIFY_PARAM * 498SSL_CTX_get0_param(SSL_CTX *ctx) 499{ 500 return (ctx->param); 501} 502LSSL_ALIAS(SSL_CTX_get0_param); 503 504int 505SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 506{ 507 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 508} 509LSSL_ALIAS(SSL_CTX_set1_param); 510 511X509_VERIFY_PARAM * 512SSL_get0_param(SSL *ssl) 513{ 514 return (ssl->param); 515} 516LSSL_ALIAS(SSL_get0_param); 517 518int 519SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 520{ 521 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 522} 523LSSL_ALIAS(SSL_set1_param); 524 525void 526SSL_free(SSL *s) 527{ 528 int i; 529 530 if (s == NULL) 531 return; 532 533 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 534 if (i > 0) 535 return; 536 537 X509_VERIFY_PARAM_free(s->param); 538 539 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 540 541 if (s->bbio != NULL) { 542 /* If the buffering BIO is in place, pop it off */ 543 if (s->bbio == s->wbio) { 544 s->wbio = BIO_pop(s->wbio); 545 } 546 BIO_free(s->bbio); 547 s->bbio = NULL; 548 } 549 550 if (s->rbio != s->wbio) 551 BIO_free_all(s->rbio); 552 BIO_free_all(s->wbio); 553 554 tls13_ctx_free(s->tls13); 555 556 ssl3_release_init_buffer(s); 557 558 sk_SSL_CIPHER_free(s->cipher_list); 559 sk_SSL_CIPHER_free(s->cipher_list_tls13); 560 561 /* Make the next call work :-) */ 562 if (s->session != NULL) { 563 ssl_clear_bad_session(s); 564 SSL_SESSION_free(s->session); 565 } 566 567 ssl_clear_cipher_state(s); 568 569 ssl_cert_free(s->cert); 570 571 free(s->tlsext_build_order); 572 573 free(s->tlsext_hostname); 574 SSL_CTX_free(s->initial_ctx); 575 576 free(s->tlsext_ecpointformatlist); 577 free(s->tlsext_supportedgroups); 578 579 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 580 X509_EXTENSION_free); 581 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 582 free(s->tlsext_ocsp_resp); 583 584 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); 585 586 if (s->method != NULL) 587 s->method->ssl_free(s); 588 589 SSL_CTX_free(s->ctx); 590 591 free(s->alpn_client_proto_list); 592 593 free(s->quic_transport_params); 594 595#ifndef OPENSSL_NO_SRTP 596 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); 597#endif 598 599 tls12_record_layer_free(s->rl); 600 601 free(s); 602} 603LSSL_ALIAS(SSL_free); 604 605int 606SSL_up_ref(SSL *s) 607{ 608 return CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL) > 1; 609} 610LSSL_ALIAS(SSL_up_ref); 611 612void 613SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 614{ 615 /* If the output buffering BIO is still in place, remove it */ 616 if (s->bbio != NULL) { 617 if (s->wbio == s->bbio) { 618 s->wbio = BIO_next(s->wbio); 619 BIO_set_next(s->bbio, NULL); 620 } 621 } 622 623 if (s->rbio != rbio && s->rbio != s->wbio) 624 BIO_free_all(s->rbio); 625 if (s->wbio != wbio) 626 BIO_free_all(s->wbio); 627 s->rbio = rbio; 628 s->wbio = wbio; 629} 630LSSL_ALIAS(SSL_set_bio); 631 632BIO * 633SSL_get_rbio(const SSL *s) 634{ 635 return (s->rbio); 636} 637LSSL_ALIAS(SSL_get_rbio); 638 639void 640SSL_set0_rbio(SSL *s, BIO *rbio) 641{ 642 BIO_free_all(s->rbio); 643 s->rbio = rbio; 644} 645LSSL_ALIAS(SSL_set0_rbio); 646 647BIO * 648SSL_get_wbio(const SSL *s) 649{ 650 return (s->wbio); 651} 652LSSL_ALIAS(SSL_get_wbio); 653 654int 655SSL_get_fd(const SSL *s) 656{ 657 return (SSL_get_rfd(s)); 658} 659LSSL_ALIAS(SSL_get_fd); 660 661int 662SSL_get_rfd(const SSL *s) 663{ 664 int ret = -1; 665 BIO *b, *r; 666 667 b = SSL_get_rbio(s); 668 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 669 if (r != NULL) 670 BIO_get_fd(r, &ret); 671 return (ret); 672} 673LSSL_ALIAS(SSL_get_rfd); 674 675int 676SSL_get_wfd(const SSL *s) 677{ 678 int ret = -1; 679 BIO *b, *r; 680 681 b = SSL_get_wbio(s); 682 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 683 if (r != NULL) 684 BIO_get_fd(r, &ret); 685 return (ret); 686} 687LSSL_ALIAS(SSL_get_wfd); 688 689int 690SSL_set_fd(SSL *s, int fd) 691{ 692 int ret = 0; 693 BIO *bio = NULL; 694 695 bio = BIO_new(BIO_s_socket()); 696 697 if (bio == NULL) { 698 SSLerror(s, ERR_R_BUF_LIB); 699 goto err; 700 } 701 BIO_set_fd(bio, fd, BIO_NOCLOSE); 702 SSL_set_bio(s, bio, bio); 703 ret = 1; 704 err: 705 return (ret); 706} 707LSSL_ALIAS(SSL_set_fd); 708 709int 710SSL_set_wfd(SSL *s, int fd) 711{ 712 int ret = 0; 713 BIO *bio = NULL; 714 715 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 716 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 717 bio = BIO_new(BIO_s_socket()); 718 719 if (bio == NULL) { 720 SSLerror(s, ERR_R_BUF_LIB); 721 goto err; 722 } 723 BIO_set_fd(bio, fd, BIO_NOCLOSE); 724 SSL_set_bio(s, SSL_get_rbio(s), bio); 725 } else 726 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 727 ret = 1; 728 err: 729 return (ret); 730} 731LSSL_ALIAS(SSL_set_wfd); 732 733int 734SSL_set_rfd(SSL *s, int fd) 735{ 736 int ret = 0; 737 BIO *bio = NULL; 738 739 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 740 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 741 bio = BIO_new(BIO_s_socket()); 742 743 if (bio == NULL) { 744 SSLerror(s, ERR_R_BUF_LIB); 745 goto err; 746 } 747 BIO_set_fd(bio, fd, BIO_NOCLOSE); 748 SSL_set_bio(s, bio, SSL_get_wbio(s)); 749 } else 750 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 751 ret = 1; 752 err: 753 return (ret); 754} 755LSSL_ALIAS(SSL_set_rfd); 756 757 758/* return length of latest Finished message we sent, copy to 'buf' */ 759size_t 760SSL_get_finished(const SSL *s, void *buf, size_t count) 761{ 762 size_t ret; 763 764 ret = s->s3->hs.finished_len; 765 if (count > ret) 766 count = ret; 767 memcpy(buf, s->s3->hs.finished, count); 768 return (ret); 769} 770LSSL_ALIAS(SSL_get_finished); 771 772/* return length of latest Finished message we expected, copy to 'buf' */ 773size_t 774SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 775{ 776 size_t ret; 777 778 ret = s->s3->hs.peer_finished_len; 779 if (count > ret) 780 count = ret; 781 memcpy(buf, s->s3->hs.peer_finished, count); 782 return (ret); 783} 784LSSL_ALIAS(SSL_get_peer_finished); 785 786 787int 788SSL_get_verify_mode(const SSL *s) 789{ 790 return (s->verify_mode); 791} 792LSSL_ALIAS(SSL_get_verify_mode); 793 794int 795SSL_get_verify_depth(const SSL *s) 796{ 797 return (X509_VERIFY_PARAM_get_depth(s->param)); 798} 799LSSL_ALIAS(SSL_get_verify_depth); 800 801int 802(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 803{ 804 return (s->verify_callback); 805} 806LSSL_ALIAS(SSL_get_verify_callback); 807 808void 809SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) 810{ 811 ctx->keylog_callback = cb; 812} 813LSSL_ALIAS(SSL_CTX_set_keylog_callback); 814 815SSL_CTX_keylog_cb_func 816SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) 817{ 818 return (ctx->keylog_callback); 819} 820LSSL_ALIAS(SSL_CTX_get_keylog_callback); 821 822int 823SSL_set_num_tickets(SSL *s, size_t num_tickets) 824{ 825 s->num_tickets = num_tickets; 826 827 return 1; 828} 829LSSL_ALIAS(SSL_set_num_tickets); 830 831size_t 832SSL_get_num_tickets(const SSL *s) 833{ 834 return s->num_tickets; 835} 836LSSL_ALIAS(SSL_get_num_tickets); 837 838int 839SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets) 840{ 841 ctx->num_tickets = num_tickets; 842 843 return 1; 844} 845LSSL_ALIAS(SSL_CTX_set_num_tickets); 846 847size_t 848SSL_CTX_get_num_tickets(const SSL_CTX *ctx) 849{ 850 return ctx->num_tickets; 851} 852LSSL_ALIAS(SSL_CTX_get_num_tickets); 853 854int 855SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 856{ 857 return (ctx->verify_mode); 858} 859LSSL_ALIAS(SSL_CTX_get_verify_mode); 860 861int 862SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 863{ 864 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 865} 866LSSL_ALIAS(SSL_CTX_get_verify_depth); 867 868int 869(*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 870{ 871 return (ctx->default_verify_callback); 872} 873LSSL_ALIAS(SSL_CTX_get_verify_callback); 874 875void 876SSL_set_verify(SSL *s, int mode, 877 int (*callback)(int ok, X509_STORE_CTX *ctx)) 878{ 879 s->verify_mode = mode; 880 if (callback != NULL) 881 s->verify_callback = callback; 882} 883LSSL_ALIAS(SSL_set_verify); 884 885void 886SSL_set_verify_depth(SSL *s, int depth) 887{ 888 X509_VERIFY_PARAM_set_depth(s->param, depth); 889} 890LSSL_ALIAS(SSL_set_verify_depth); 891 892void 893SSL_set_read_ahead(SSL *s, int yes) 894{ 895 s->read_ahead = yes; 896} 897LSSL_ALIAS(SSL_set_read_ahead); 898 899int 900SSL_get_read_ahead(const SSL *s) 901{ 902 return (s->read_ahead); 903} 904LSSL_ALIAS(SSL_get_read_ahead); 905 906int 907SSL_pending(const SSL *s) 908{ 909 return (s->method->ssl_pending(s)); 910} 911LSSL_ALIAS(SSL_pending); 912 913X509 * 914SSL_get_peer_certificate(const SSL *s) 915{ 916 X509 *cert; 917 918 if (s == NULL || s->session == NULL) 919 return NULL; 920 921 if ((cert = s->session->peer_cert) == NULL) 922 return NULL; 923 924 X509_up_ref(cert); 925 926 return cert; 927} 928LSSL_ALIAS(SSL_get_peer_certificate); 929 930STACK_OF(X509) * 931SSL_get_peer_cert_chain(const SSL *s) 932{ 933 if (s == NULL) 934 return NULL; 935 936 /* 937 * Achtung! Due to API inconsistency, a client includes the peer's leaf 938 * certificate in the peer certificate chain, while a server does not. 939 */ 940 if (!s->server) 941 return s->s3->hs.peer_certs; 942 943 return s->s3->hs.peer_certs_no_leaf; 944} 945LSSL_ALIAS(SSL_get_peer_cert_chain); 946 947STACK_OF(X509) * 948SSL_get0_verified_chain(const SSL *s) 949{ 950 if (s->s3 == NULL) 951 return NULL; 952 return s->s3->hs.verified_chain; 953} 954LSSL_ALIAS(SSL_get0_verified_chain); 955 956/* 957 * Now in theory, since the calling process own 't' it should be safe to 958 * modify. We need to be able to read f without being hassled 959 */ 960int 961SSL_copy_session_id(SSL *t, const SSL *f) 962{ 963 SSL_CERT *tmp; 964 965 /* Do we need to do SSL locking? */ 966 if (!SSL_set_session(t, SSL_get_session(f))) 967 return 0; 968 969 /* What if we are set up for one protocol but want to talk another? */ 970 if (t->method != f->method) { 971 t->method->ssl_free(t); 972 t->method = f->method; 973 if (!t->method->ssl_new(t)) 974 return 0; 975 } 976 977 tmp = t->cert; 978 if (f->cert != NULL) { 979 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 980 t->cert = f->cert; 981 } else 982 t->cert = NULL; 983 ssl_cert_free(tmp); 984 985 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) 986 return 0; 987 988 return 1; 989} 990LSSL_ALIAS(SSL_copy_session_id); 991 992/* Fix this so it checks all the valid key/cert options */ 993int 994SSL_CTX_check_private_key(const SSL_CTX *ctx) 995{ 996 if ((ctx == NULL) || (ctx->cert == NULL) || 997 (ctx->cert->key->x509 == NULL)) { 998 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED); 999 return (0); 1000 } 1001 if (ctx->cert->key->privatekey == NULL) { 1002 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED); 1003 return (0); 1004 } 1005 return (X509_check_private_key(ctx->cert->key->x509, 1006 ctx->cert->key->privatekey)); 1007} 1008LSSL_ALIAS(SSL_CTX_check_private_key); 1009 1010/* Fix this function so that it takes an optional type parameter */ 1011int 1012SSL_check_private_key(const SSL *ssl) 1013{ 1014 if (ssl == NULL) { 1015 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); 1016 return (0); 1017 } 1018 if (ssl->cert == NULL) { 1019 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 1020 return (0); 1021 } 1022 if (ssl->cert->key->x509 == NULL) { 1023 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 1024 return (0); 1025 } 1026 if (ssl->cert->key->privatekey == NULL) { 1027 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 1028 return (0); 1029 } 1030 return (X509_check_private_key(ssl->cert->key->x509, 1031 ssl->cert->key->privatekey)); 1032} 1033LSSL_ALIAS(SSL_check_private_key); 1034 1035int 1036SSL_accept(SSL *s) 1037{ 1038 if (s->handshake_func == NULL) 1039 SSL_set_accept_state(s); /* Not properly initialized yet */ 1040 1041 return (s->method->ssl_accept(s)); 1042} 1043LSSL_ALIAS(SSL_accept); 1044 1045int 1046SSL_connect(SSL *s) 1047{ 1048 if (s->handshake_func == NULL) 1049 SSL_set_connect_state(s); /* Not properly initialized yet */ 1050 1051 return (s->method->ssl_connect(s)); 1052} 1053LSSL_ALIAS(SSL_connect); 1054 1055int 1056SSL_is_dtls(const SSL *s) 1057{ 1058 return s->method->dtls; 1059} 1060LSSL_ALIAS(SSL_is_dtls); 1061 1062int 1063SSL_is_server(const SSL *s) 1064{ 1065 return s->server; 1066} 1067LSSL_ALIAS(SSL_is_server); 1068 1069static long 1070ssl_get_default_timeout(void) 1071{ 1072 /* 1073 * 2 hours, the 24 hours mentioned in the TLSv1 spec 1074 * is way too long for http, the cache would over fill. 1075 */ 1076 return (2 * 60 * 60); 1077} 1078 1079long 1080SSL_get_default_timeout(const SSL *s) 1081{ 1082 return (ssl_get_default_timeout()); 1083} 1084LSSL_ALIAS(SSL_get_default_timeout); 1085 1086int 1087SSL_read(SSL *s, void *buf, int num) 1088{ 1089 if (num < 0) { 1090 SSLerror(s, SSL_R_BAD_LENGTH); 1091 return -1; 1092 } 1093 1094 if (SSL_is_quic(s)) { 1095 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1096 return (-1); 1097 } 1098 1099 if (s->handshake_func == NULL) { 1100 SSLerror(s, SSL_R_UNINITIALIZED); 1101 return (-1); 1102 } 1103 1104 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 1105 s->rwstate = SSL_NOTHING; 1106 return (0); 1107 } 1108 return ssl3_read(s, buf, num); 1109} 1110LSSL_ALIAS(SSL_read); 1111 1112int 1113SSL_read_ex(SSL *s, void *buf, size_t num, size_t *bytes_read) 1114{ 1115 int ret; 1116 1117 /* We simply don't bother supporting enormous reads */ 1118 if (num > INT_MAX) { 1119 SSLerror(s, SSL_R_BAD_LENGTH); 1120 return 0; 1121 } 1122 1123 ret = SSL_read(s, buf, (int)num); 1124 if (ret < 0) 1125 ret = 0; 1126 *bytes_read = ret; 1127 1128 return ret > 0; 1129} 1130LSSL_ALIAS(SSL_read_ex); 1131 1132int 1133SSL_peek(SSL *s, void *buf, int num) 1134{ 1135 if (num < 0) { 1136 SSLerror(s, SSL_R_BAD_LENGTH); 1137 return -1; 1138 } 1139 1140 if (SSL_is_quic(s)) { 1141 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1142 return (-1); 1143 } 1144 1145 if (s->handshake_func == NULL) { 1146 SSLerror(s, SSL_R_UNINITIALIZED); 1147 return (-1); 1148 } 1149 1150 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 1151 return (0); 1152 } 1153 return ssl3_peek(s, buf, num); 1154} 1155LSSL_ALIAS(SSL_peek); 1156 1157int 1158SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *bytes_peeked) 1159{ 1160 int ret; 1161 1162 /* We simply don't bother supporting enormous peeks */ 1163 if (num > INT_MAX) { 1164 SSLerror(s, SSL_R_BAD_LENGTH); 1165 return 0; 1166 } 1167 1168 ret = SSL_peek(s, buf, (int)num); 1169 if (ret < 0) 1170 ret = 0; 1171 *bytes_peeked = ret; 1172 1173 return ret > 0; 1174} 1175LSSL_ALIAS(SSL_peek_ex); 1176 1177int 1178SSL_write(SSL *s, const void *buf, int num) 1179{ 1180 if (num < 0) { 1181 SSLerror(s, SSL_R_BAD_LENGTH); 1182 return -1; 1183 } 1184 1185 if (SSL_is_quic(s)) { 1186 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1187 return (-1); 1188 } 1189 1190 if (s->handshake_func == NULL) { 1191 SSLerror(s, SSL_R_UNINITIALIZED); 1192 return (-1); 1193 } 1194 1195 if (s->shutdown & SSL_SENT_SHUTDOWN) { 1196 s->rwstate = SSL_NOTHING; 1197 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 1198 return (-1); 1199 } 1200 return ssl3_write(s, buf, num); 1201} 1202LSSL_ALIAS(SSL_write); 1203 1204int 1205SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *bytes_written) 1206{ 1207 int ret; 1208 1209 /* We simply don't bother supporting enormous writes */ 1210 if (num > INT_MAX) { 1211 SSLerror(s, SSL_R_BAD_LENGTH); 1212 return 0; 1213 } 1214 1215 if (num == 0) { 1216 /* This API is special */ 1217 bytes_written = 0; 1218 return 1; 1219 } 1220 1221 ret = SSL_write(s, buf, (int)num); 1222 if (ret < 0) 1223 ret = 0; 1224 *bytes_written = ret; 1225 1226 return ret > 0; 1227} 1228LSSL_ALIAS(SSL_write_ex); 1229 1230uint32_t 1231SSL_CTX_get_max_early_data(const SSL_CTX *ctx) 1232{ 1233 return 0; 1234} 1235LSSL_ALIAS(SSL_CTX_get_max_early_data); 1236 1237int 1238SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) 1239{ 1240 return 1; 1241} 1242LSSL_ALIAS(SSL_CTX_set_max_early_data); 1243 1244uint32_t 1245SSL_get_max_early_data(const SSL *s) 1246{ 1247 return 0; 1248} 1249LSSL_ALIAS(SSL_get_max_early_data); 1250 1251int 1252SSL_set_max_early_data(SSL *s, uint32_t max_early_data) 1253{ 1254 return 1; 1255} 1256LSSL_ALIAS(SSL_set_max_early_data); 1257 1258int 1259SSL_get_early_data_status(const SSL *s) 1260{ 1261 return SSL_EARLY_DATA_REJECTED; 1262} 1263LSSL_ALIAS(SSL_get_early_data_status); 1264 1265int 1266SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) 1267{ 1268 *readbytes = 0; 1269 1270 if (!s->server) { 1271 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1272 return SSL_READ_EARLY_DATA_ERROR; 1273 } 1274 1275 return SSL_READ_EARLY_DATA_FINISH; 1276} 1277LSSL_ALIAS(SSL_read_early_data); 1278 1279int 1280SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) 1281{ 1282 *written = 0; 1283 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1284 return 0; 1285} 1286LSSL_ALIAS(SSL_write_early_data); 1287 1288int 1289SSL_shutdown(SSL *s) 1290{ 1291 /* 1292 * Note that this function behaves differently from what one might 1293 * expect. Return values are 0 for no success (yet), 1294 * 1 for success; but calling it once is usually not enough, 1295 * even if blocking I/O is used (see ssl3_shutdown). 1296 */ 1297 1298 if (s->handshake_func == NULL) { 1299 SSLerror(s, SSL_R_UNINITIALIZED); 1300 return (-1); 1301 } 1302 1303 if (s != NULL && !SSL_in_init(s)) 1304 return (s->method->ssl_shutdown(s)); 1305 1306 return (1); 1307} 1308LSSL_ALIAS(SSL_shutdown); 1309 1310int 1311SSL_renegotiate(SSL *s) 1312{ 1313 if (s->renegotiate == 0) 1314 s->renegotiate = 1; 1315 1316 s->new_session = 1; 1317 1318 return (s->method->ssl_renegotiate(s)); 1319} 1320LSSL_ALIAS(SSL_renegotiate); 1321 1322int 1323SSL_renegotiate_abbreviated(SSL *s) 1324{ 1325 if (s->renegotiate == 0) 1326 s->renegotiate = 1; 1327 1328 s->new_session = 0; 1329 1330 return (s->method->ssl_renegotiate(s)); 1331} 1332LSSL_ALIAS(SSL_renegotiate_abbreviated); 1333 1334int 1335SSL_renegotiate_pending(SSL *s) 1336{ 1337 /* 1338 * Becomes true when negotiation is requested; 1339 * false again once a handshake has finished. 1340 */ 1341 return (s->renegotiate != 0); 1342} 1343LSSL_ALIAS(SSL_renegotiate_pending); 1344 1345long 1346SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1347{ 1348 long l; 1349 1350 switch (cmd) { 1351 case SSL_CTRL_GET_READ_AHEAD: 1352 return (s->read_ahead); 1353 case SSL_CTRL_SET_READ_AHEAD: 1354 l = s->read_ahead; 1355 s->read_ahead = larg; 1356 return (l); 1357 1358 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1359 s->msg_callback_arg = parg; 1360 return (1); 1361 1362 case SSL_CTRL_OPTIONS: 1363 return (s->options|=larg); 1364 case SSL_CTRL_CLEAR_OPTIONS: 1365 return (s->options&=~larg); 1366 case SSL_CTRL_MODE: 1367 return (s->mode|=larg); 1368 case SSL_CTRL_CLEAR_MODE: 1369 return (s->mode &=~larg); 1370 case SSL_CTRL_GET_MAX_CERT_LIST: 1371 return (s->max_cert_list); 1372 case SSL_CTRL_SET_MAX_CERT_LIST: 1373 l = s->max_cert_list; 1374 s->max_cert_list = larg; 1375 return (l); 1376 case SSL_CTRL_SET_MTU: 1377#ifndef OPENSSL_NO_DTLS1 1378 if (larg < (long)dtls1_min_mtu()) 1379 return (0); 1380#endif 1381 if (SSL_is_dtls(s)) { 1382 s->d1->mtu = larg; 1383 return (larg); 1384 } 1385 return (0); 1386 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1387 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1388 return (0); 1389 s->max_send_fragment = larg; 1390 return (1); 1391 case SSL_CTRL_GET_RI_SUPPORT: 1392 if (s->s3) 1393 return (s->s3->send_connection_binding); 1394 else return (0); 1395 default: 1396 if (SSL_is_dtls(s)) 1397 return dtls1_ctrl(s, cmd, larg, parg); 1398 return ssl3_ctrl(s, cmd, larg, parg); 1399 } 1400} 1401LSSL_ALIAS(SSL_ctrl); 1402 1403long 1404SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1405{ 1406 switch (cmd) { 1407 case SSL_CTRL_SET_MSG_CALLBACK: 1408 s->msg_callback = (ssl_msg_callback_fn *)(fp); 1409 return (1); 1410 1411 default: 1412 return (ssl3_callback_ctrl(s, cmd, fp)); 1413 } 1414} 1415LSSL_ALIAS(SSL_callback_ctrl); 1416 1417struct lhash_st_SSL_SESSION * 1418SSL_CTX_sessions(SSL_CTX *ctx) 1419{ 1420 return (ctx->sessions); 1421} 1422LSSL_ALIAS(SSL_CTX_sessions); 1423 1424long 1425SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1426{ 1427 long l; 1428 1429 switch (cmd) { 1430 case SSL_CTRL_GET_READ_AHEAD: 1431 return (ctx->read_ahead); 1432 case SSL_CTRL_SET_READ_AHEAD: 1433 l = ctx->read_ahead; 1434 ctx->read_ahead = larg; 1435 return (l); 1436 1437 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1438 ctx->msg_callback_arg = parg; 1439 return (1); 1440 1441 case SSL_CTRL_GET_MAX_CERT_LIST: 1442 return (ctx->max_cert_list); 1443 case SSL_CTRL_SET_MAX_CERT_LIST: 1444 l = ctx->max_cert_list; 1445 ctx->max_cert_list = larg; 1446 return (l); 1447 1448 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1449 l = ctx->session_cache_size; 1450 ctx->session_cache_size = larg; 1451 return (l); 1452 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1453 return (ctx->session_cache_size); 1454 case SSL_CTRL_SET_SESS_CACHE_MODE: 1455 l = ctx->session_cache_mode; 1456 ctx->session_cache_mode = larg; 1457 return (l); 1458 case SSL_CTRL_GET_SESS_CACHE_MODE: 1459 return (ctx->session_cache_mode); 1460 1461 case SSL_CTRL_SESS_NUMBER: 1462 return (lh_SSL_SESSION_num_items(ctx->sessions)); 1463 case SSL_CTRL_SESS_CONNECT: 1464 return (ctx->stats.sess_connect); 1465 case SSL_CTRL_SESS_CONNECT_GOOD: 1466 return (ctx->stats.sess_connect_good); 1467 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1468 return (ctx->stats.sess_connect_renegotiate); 1469 case SSL_CTRL_SESS_ACCEPT: 1470 return (ctx->stats.sess_accept); 1471 case SSL_CTRL_SESS_ACCEPT_GOOD: 1472 return (ctx->stats.sess_accept_good); 1473 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1474 return (ctx->stats.sess_accept_renegotiate); 1475 case SSL_CTRL_SESS_HIT: 1476 return (ctx->stats.sess_hit); 1477 case SSL_CTRL_SESS_CB_HIT: 1478 return (ctx->stats.sess_cb_hit); 1479 case SSL_CTRL_SESS_MISSES: 1480 return (ctx->stats.sess_miss); 1481 case SSL_CTRL_SESS_TIMEOUTS: 1482 return (ctx->stats.sess_timeout); 1483 case SSL_CTRL_SESS_CACHE_FULL: 1484 return (ctx->stats.sess_cache_full); 1485 case SSL_CTRL_OPTIONS: 1486 return (ctx->options|=larg); 1487 case SSL_CTRL_CLEAR_OPTIONS: 1488 return (ctx->options&=~larg); 1489 case SSL_CTRL_MODE: 1490 return (ctx->mode|=larg); 1491 case SSL_CTRL_CLEAR_MODE: 1492 return (ctx->mode&=~larg); 1493 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1494 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1495 return (0); 1496 ctx->max_send_fragment = larg; 1497 return (1); 1498 default: 1499 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1500 } 1501} 1502LSSL_ALIAS(SSL_CTX_ctrl); 1503 1504long 1505SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1506{ 1507 switch (cmd) { 1508 case SSL_CTRL_SET_MSG_CALLBACK: 1509 ctx->msg_callback = (ssl_msg_callback_fn *)fp; 1510 return (1); 1511 1512 default: 1513 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1514 } 1515} 1516LSSL_ALIAS(SSL_CTX_callback_ctrl); 1517 1518STACK_OF(SSL_CIPHER) * 1519SSL_get_ciphers(const SSL *s) 1520{ 1521 if (s == NULL) 1522 return (NULL); 1523 if (s->cipher_list != NULL) 1524 return (s->cipher_list); 1525 1526 return (s->ctx->cipher_list); 1527} 1528LSSL_ALIAS(SSL_get_ciphers); 1529 1530STACK_OF(SSL_CIPHER) * 1531SSL_get_client_ciphers(const SSL *s) 1532{ 1533 if (s == NULL || s->session == NULL || !s->server) 1534 return NULL; 1535 return s->session->ciphers; 1536} 1537LSSL_ALIAS(SSL_get_client_ciphers); 1538 1539STACK_OF(SSL_CIPHER) * 1540SSL_get1_supported_ciphers(SSL *s) 1541{ 1542 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers; 1543 SSL_CIPHER *cipher; 1544 uint16_t min_vers, max_vers; 1545 int i; 1546 1547 if (s == NULL) 1548 return NULL; 1549 if (!ssl_supported_tls_version_range(s, &min_vers, &max_vers)) 1550 return NULL; 1551 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1552 return NULL; 1553 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL) 1554 return NULL; 1555 1556 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1557 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL) 1558 goto err; 1559 if (!ssl_cipher_allowed_in_tls_version_range(cipher, min_vers, 1560 max_vers)) 1561 continue; 1562 if (!ssl_security_supported_cipher(s, cipher)) 1563 continue; 1564 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher)) 1565 goto err; 1566 } 1567 1568 if (sk_SSL_CIPHER_num(supported_ciphers) > 0) 1569 return supported_ciphers; 1570 1571 err: 1572 sk_SSL_CIPHER_free(supported_ciphers); 1573 return NULL; 1574} 1575LSSL_ALIAS(SSL_get1_supported_ciphers); 1576 1577/* See if we have any ECC cipher suites. */ 1578int 1579ssl_has_ecc_ciphers(SSL *s) 1580{ 1581 STACK_OF(SSL_CIPHER) *ciphers; 1582 unsigned long alg_k, alg_a; 1583 SSL_CIPHER *cipher; 1584 int i; 1585 1586 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1587 return 0; 1588 1589 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1590 cipher = sk_SSL_CIPHER_value(ciphers, i); 1591 1592 alg_k = cipher->algorithm_mkey; 1593 alg_a = cipher->algorithm_auth; 1594 1595 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1596 return 1; 1597 } 1598 1599 return 0; 1600} 1601 1602/* The old interface to get the same thing as SSL_get_ciphers(). */ 1603const char * 1604SSL_get_cipher_list(const SSL *s, int n) 1605{ 1606 STACK_OF(SSL_CIPHER) *ciphers; 1607 const SSL_CIPHER *cipher; 1608 1609 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1610 return (NULL); 1611 if ((cipher = sk_SSL_CIPHER_value(ciphers, n)) == NULL) 1612 return (NULL); 1613 1614 return (cipher->name); 1615} 1616LSSL_ALIAS(SSL_get_cipher_list); 1617 1618STACK_OF(SSL_CIPHER) * 1619SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1620{ 1621 if (ctx == NULL) 1622 return NULL; 1623 return ctx->cipher_list; 1624} 1625LSSL_ALIAS(SSL_CTX_get_ciphers); 1626 1627/* Specify the ciphers to be used by default by the SSL_CTX. */ 1628int 1629SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1630{ 1631 STACK_OF(SSL_CIPHER) *ciphers; 1632 1633 /* 1634 * ssl_create_cipher_list may return an empty stack if it was unable to 1635 * find a cipher matching the given rule string (for example if the 1636 * rule string specifies a cipher which has been disabled). This is not 1637 * an error as far as ssl_create_cipher_list is concerned, and hence 1638 * ctx->cipher_list has been updated. 1639 */ 1640 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1641 ctx->cipher_list_tls13, str, ctx->cert); 1642 if (ciphers == NULL) { 1643 return (0); 1644 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1645 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1646 return (0); 1647 } 1648 return (1); 1649} 1650LSSL_ALIAS(SSL_CTX_set_cipher_list); 1651 1652int 1653SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str) 1654{ 1655 if (!ssl_parse_ciphersuites(&ctx->cipher_list_tls13, str)) { 1656 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1657 return 0; 1658 } 1659 if (!ssl_merge_cipherlists(ctx->cipher_list, 1660 ctx->cipher_list_tls13, &ctx->cipher_list)) 1661 return 0; 1662 1663 return 1; 1664} 1665LSSL_ALIAS(SSL_CTX_set_ciphersuites); 1666 1667/* Specify the ciphers to be used by the SSL. */ 1668int 1669SSL_set_cipher_list(SSL *s, const char *str) 1670{ 1671 STACK_OF(SSL_CIPHER) *ciphers, *ciphers_tls13; 1672 1673 if ((ciphers_tls13 = s->cipher_list_tls13) == NULL) 1674 ciphers_tls13 = s->ctx->cipher_list_tls13; 1675 1676 /* See comment in SSL_CTX_set_cipher_list. */ 1677 ciphers = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1678 ciphers_tls13, str, s->cert); 1679 if (ciphers == NULL) { 1680 return (0); 1681 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1682 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1683 return (0); 1684 } 1685 return (1); 1686} 1687LSSL_ALIAS(SSL_set_cipher_list); 1688 1689int 1690SSL_set_ciphersuites(SSL *s, const char *str) 1691{ 1692 STACK_OF(SSL_CIPHER) *ciphers; 1693 1694 if ((ciphers = s->cipher_list) == NULL) 1695 ciphers = s->ctx->cipher_list; 1696 1697 if (!ssl_parse_ciphersuites(&s->cipher_list_tls13, str)) { 1698 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1699 return (0); 1700 } 1701 if (!ssl_merge_cipherlists(ciphers, s->cipher_list_tls13, 1702 &s->cipher_list)) 1703 return 0; 1704 1705 return 1; 1706} 1707LSSL_ALIAS(SSL_set_ciphersuites); 1708 1709char * 1710SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1711{ 1712 STACK_OF(SSL_CIPHER) *client_ciphers, *server_ciphers; 1713 const SSL_CIPHER *cipher; 1714 size_t curlen = 0; 1715 char *end; 1716 int i; 1717 1718 if (!s->server || s->session == NULL || len < 2) 1719 return NULL; 1720 1721 if ((client_ciphers = s->session->ciphers) == NULL) 1722 return NULL; 1723 if ((server_ciphers = SSL_get_ciphers(s)) == NULL) 1724 return NULL; 1725 if (sk_SSL_CIPHER_num(client_ciphers) == 0 || 1726 sk_SSL_CIPHER_num(server_ciphers) == 0) 1727 return NULL; 1728 1729 buf[0] = '\0'; 1730 for (i = 0; i < sk_SSL_CIPHER_num(client_ciphers); i++) { 1731 cipher = sk_SSL_CIPHER_value(client_ciphers, i); 1732 1733 if (sk_SSL_CIPHER_find(server_ciphers, cipher) < 0) 1734 continue; 1735 1736 end = buf + curlen; 1737 if (strlcat(buf, cipher->name, len) >= len || 1738 (curlen = strlcat(buf, ":", len)) >= len) { 1739 /* remove truncated cipher from list */ 1740 *end = '\0'; 1741 break; 1742 } 1743 } 1744 /* remove trailing colon */ 1745 if ((end = strrchr(buf, ':')) != NULL) 1746 *end = '\0'; 1747 return buf; 1748} 1749LSSL_ALIAS(SSL_get_shared_ciphers); 1750 1751/* 1752 * Return a servername extension value if provided in Client Hello, or NULL. 1753 * So far, only host_name types are defined (RFC 3546). 1754 */ 1755const char * 1756SSL_get_servername(const SSL *s, const int type) 1757{ 1758 if (type != TLSEXT_NAMETYPE_host_name) 1759 return (NULL); 1760 1761 return (s->session && !s->tlsext_hostname ? 1762 s->session->tlsext_hostname : 1763 s->tlsext_hostname); 1764} 1765LSSL_ALIAS(SSL_get_servername); 1766 1767int 1768SSL_get_servername_type(const SSL *s) 1769{ 1770 if (s->session && 1771 (!s->tlsext_hostname ? 1772 s->session->tlsext_hostname : s->tlsext_hostname)) 1773 return (TLSEXT_NAMETYPE_host_name); 1774 return (-1); 1775} 1776LSSL_ALIAS(SSL_get_servername_type); 1777 1778/* 1779 * SSL_select_next_proto implements standard protocol selection. It is 1780 * expected that this function is called from the callback set by 1781 * SSL_CTX_set_alpn_select_cb. 1782 * 1783 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1784 * strings. The length byte itself is not included in the length. A byte 1785 * string of length 0 is invalid. No byte string may be truncated. 1786 * 1787 * It returns either: 1788 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1789 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1790 */ 1791int 1792SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1793 const unsigned char *server, unsigned int server_len, 1794 const unsigned char *client, unsigned int client_len) 1795{ 1796 unsigned int i, j; 1797 const unsigned char *result; 1798 int status = OPENSSL_NPN_UNSUPPORTED; 1799 1800 /* 1801 * For each protocol in server preference order, 1802 * see if we support it. 1803 */ 1804 for (i = 0; i < server_len; ) { 1805 for (j = 0; j < client_len; ) { 1806 if (server[i] == client[j] && 1807 memcmp(&server[i + 1], 1808 &client[j + 1], server[i]) == 0) { 1809 /* We found a match */ 1810 result = &server[i]; 1811 status = OPENSSL_NPN_NEGOTIATED; 1812 goto found; 1813 } 1814 j += client[j]; 1815 j++; 1816 } 1817 i += server[i]; 1818 i++; 1819 } 1820 1821 /* There's no overlap between our protocols and the server's list. */ 1822 result = client; 1823 status = OPENSSL_NPN_NO_OVERLAP; 1824 1825 found: 1826 *out = (unsigned char *) result + 1; 1827 *outlen = result[0]; 1828 return (status); 1829} 1830LSSL_ALIAS(SSL_select_next_proto); 1831 1832/* SSL_get0_next_proto_negotiated is deprecated. */ 1833void 1834SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1835 unsigned int *len) 1836{ 1837 *data = NULL; 1838 *len = 0; 1839} 1840LSSL_ALIAS(SSL_get0_next_proto_negotiated); 1841 1842/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1843void 1844SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1845 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1846{ 1847} 1848LSSL_ALIAS(SSL_CTX_set_next_protos_advertised_cb); 1849 1850/* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1851void 1852SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1853 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1854 unsigned int inlen, void *arg), void *arg) 1855{ 1856} 1857LSSL_ALIAS(SSL_CTX_set_next_proto_select_cb); 1858 1859/* 1860 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1861 * protocols, which must be in wire-format (i.e. a series of non-empty, 1862 * 8-bit length-prefixed strings). Returns 0 on success. 1863 */ 1864int 1865SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1866 unsigned int protos_len) 1867{ 1868 CBS cbs; 1869 int failed = 1; 1870 1871 if (protos == NULL) 1872 protos_len = 0; 1873 1874 CBS_init(&cbs, protos, protos_len); 1875 1876 if (protos_len > 0) { 1877 if (!tlsext_alpn_check_format(&cbs)) 1878 goto err; 1879 } 1880 1881 if (!CBS_stow(&cbs, &ctx->alpn_client_proto_list, 1882 &ctx->alpn_client_proto_list_len)) 1883 goto err; 1884 1885 failed = 0; 1886 1887 err: 1888 /* NOTE: Return values are the reverse of what you expect. */ 1889 return failed; 1890} 1891LSSL_ALIAS(SSL_CTX_set_alpn_protos); 1892 1893/* 1894 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1895 * protocols, which must be in wire-format (i.e. a series of non-empty, 1896 * 8-bit length-prefixed strings). Returns 0 on success. 1897 */ 1898int 1899SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1900 unsigned int protos_len) 1901{ 1902 CBS cbs; 1903 int failed = 1; 1904 1905 if (protos == NULL) 1906 protos_len = 0; 1907 1908 CBS_init(&cbs, protos, protos_len); 1909 1910 if (protos_len > 0) { 1911 if (!tlsext_alpn_check_format(&cbs)) 1912 goto err; 1913 } 1914 1915 if (!CBS_stow(&cbs, &ssl->alpn_client_proto_list, 1916 &ssl->alpn_client_proto_list_len)) 1917 goto err; 1918 1919 failed = 0; 1920 1921 err: 1922 /* NOTE: Return values are the reverse of what you expect. */ 1923 return failed; 1924} 1925LSSL_ALIAS(SSL_set_alpn_protos); 1926 1927/* 1928 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1929 * ClientHello processing in order to select an ALPN protocol from the 1930 * client's list of offered protocols. 1931 */ 1932void 1933SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1934 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1935 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1936{ 1937 ctx->alpn_select_cb = cb; 1938 ctx->alpn_select_cb_arg = arg; 1939} 1940LSSL_ALIAS(SSL_CTX_set_alpn_select_cb); 1941 1942/* 1943 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1944 * it sets data to point to len bytes of protocol name (not including the 1945 * leading length-prefix byte). If the server didn't respond with* a negotiated 1946 * protocol then len will be zero. 1947 */ 1948void 1949SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1950 unsigned int *len) 1951{ 1952 *data = ssl->s3->alpn_selected; 1953 *len = ssl->s3->alpn_selected_len; 1954} 1955LSSL_ALIAS(SSL_get0_alpn_selected); 1956 1957void 1958SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb) 1959{ 1960 return; 1961} 1962LSSL_ALIAS(SSL_set_psk_use_session_callback); 1963 1964int 1965SSL_export_keying_material(SSL *s, unsigned char *out, size_t out_len, 1966 const char *label, size_t label_len, const unsigned char *context, 1967 size_t context_len, int use_context) 1968{ 1969 if (s->tls13 != NULL && s->version == TLS1_3_VERSION) { 1970 if (!use_context) { 1971 context = NULL; 1972 context_len = 0; 1973 } 1974 return tls13_exporter(s->tls13, label, label_len, context, 1975 context_len, out, out_len); 1976 } 1977 1978 return tls12_exporter(s, label, label_len, context, context_len, 1979 use_context, out, out_len); 1980} 1981LSSL_ALIAS(SSL_export_keying_material); 1982 1983static unsigned long 1984ssl_session_hash(const SSL_SESSION *a) 1985{ 1986 unsigned long l; 1987 1988 l = (unsigned long) 1989 ((unsigned int) a->session_id[0] )| 1990 ((unsigned int) a->session_id[1]<< 8L)| 1991 ((unsigned long)a->session_id[2]<<16L)| 1992 ((unsigned long)a->session_id[3]<<24L); 1993 return (l); 1994} 1995 1996/* 1997 * NB: If this function (or indeed the hash function which uses a sort of 1998 * coarser function than this one) is changed, ensure 1999 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 2000 * able to construct an SSL_SESSION that will collide with any existing session 2001 * with a matching session ID. 2002 */ 2003static int 2004ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 2005{ 2006 if (a->ssl_version != b->ssl_version) 2007 return (1); 2008 if (a->session_id_length != b->session_id_length) 2009 return (1); 2010 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 2011 return (1); 2012 return (0); 2013} 2014 2015/* 2016 * These wrapper functions should remain rather than redeclaring 2017 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 2018 * variable. The reason is that the functions aren't static, they're exposed via 2019 * ssl.h. 2020 */ 2021static unsigned long 2022ssl_session_LHASH_HASH(const void *arg) 2023{ 2024 const SSL_SESSION *a = arg; 2025 2026 return ssl_session_hash(a); 2027} 2028 2029static int 2030ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 2031{ 2032 const SSL_SESSION *a = arg1; 2033 const SSL_SESSION *b = arg2; 2034 2035 return ssl_session_cmp(a, b); 2036} 2037 2038SSL_CTX * 2039SSL_CTX_new(const SSL_METHOD *meth) 2040{ 2041 SSL_CTX *ret; 2042 2043 if (!OPENSSL_init_ssl(0, NULL)) { 2044 SSLerrorx(SSL_R_LIBRARY_BUG); 2045 return (NULL); 2046 } 2047 2048 if (meth == NULL) { 2049 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 2050 return (NULL); 2051 } 2052 2053 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 2054 SSLerrorx(ERR_R_MALLOC_FAILURE); 2055 return (NULL); 2056 } 2057 2058 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 2059 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 2060 goto err; 2061 } 2062 2063 ret->method = meth; 2064 ret->min_tls_version = meth->min_tls_version; 2065 ret->max_tls_version = meth->max_tls_version; 2066 ret->min_proto_version = 0; 2067 ret->max_proto_version = 0; 2068 ret->mode = SSL_MODE_AUTO_RETRY; 2069 2070 ret->cert_store = NULL; 2071 ret->session_cache_mode = SSL_SESS_CACHE_SERVER; 2072 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 2073 ret->session_cache_head = NULL; 2074 ret->session_cache_tail = NULL; 2075 2076 /* We take the system default */ 2077 ret->session_timeout = ssl_get_default_timeout(); 2078 2079 ret->new_session_cb = NULL; 2080 ret->remove_session_cb = NULL; 2081 ret->get_session_cb = NULL; 2082 ret->generate_session_id = NULL; 2083 2084 memset((char *)&ret->stats, 0, sizeof(ret->stats)); 2085 2086 ret->references = 1; 2087 ret->quiet_shutdown = 0; 2088 2089 ret->info_callback = NULL; 2090 2091 ret->app_verify_callback = NULL; 2092 ret->app_verify_arg = NULL; 2093 2094 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 2095 ret->read_ahead = 0; 2096 ret->msg_callback = NULL; 2097 ret->msg_callback_arg = NULL; 2098 ret->verify_mode = SSL_VERIFY_NONE; 2099 ret->sid_ctx_length = 0; 2100 ret->default_verify_callback = NULL; 2101 2102 if ((ret->cert = ssl_cert_new()) == NULL) 2103 goto err; 2104 2105 ret->default_passwd_callback = NULL; 2106 ret->default_passwd_callback_userdata = NULL; 2107 ret->client_cert_cb = NULL; 2108 ret->app_gen_cookie_cb = NULL; 2109 ret->app_verify_cookie_cb = NULL; 2110 2111 ret->sessions = lh_SSL_SESSION_new(); 2112 if (ret->sessions == NULL) 2113 goto err; 2114 ret->cert_store = X509_STORE_new(); 2115 if (ret->cert_store == NULL) 2116 goto err; 2117 2118 ssl_create_cipher_list(ret->method, &ret->cipher_list, 2119 NULL, SSL_DEFAULT_CIPHER_LIST, ret->cert); 2120 if (ret->cipher_list == NULL || 2121 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 2122 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 2123 goto err2; 2124 } 2125 2126 ret->param = X509_VERIFY_PARAM_new(); 2127 if (!ret->param) 2128 goto err; 2129 2130 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) 2131 goto err; 2132 2133 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 2134 2135 ret->extra_certs = NULL; 2136 2137 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 2138 2139 ret->tlsext_servername_callback = 0; 2140 ret->tlsext_servername_arg = NULL; 2141 2142 /* Setup RFC4507 ticket keys */ 2143 arc4random_buf(ret->tlsext_tick_key_name, 16); 2144 arc4random_buf(ret->tlsext_tick_hmac_key, 16); 2145 arc4random_buf(ret->tlsext_tick_aes_key, 16); 2146 2147 ret->tlsext_status_cb = 0; 2148 ret->tlsext_status_arg = NULL; 2149 2150 /* 2151 * Default is to connect to non-RI servers. When RI is more widely 2152 * deployed might change this. 2153 */ 2154 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; 2155 2156 return (ret); 2157 err: 2158 SSLerrorx(ERR_R_MALLOC_FAILURE); 2159 err2: 2160 SSL_CTX_free(ret); 2161 return (NULL); 2162} 2163LSSL_ALIAS(SSL_CTX_new); 2164 2165void 2166SSL_CTX_free(SSL_CTX *ctx) 2167{ 2168 int i; 2169 2170 if (ctx == NULL) 2171 return; 2172 2173 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 2174 if (i > 0) 2175 return; 2176 2177 X509_VERIFY_PARAM_free(ctx->param); 2178 2179 /* 2180 * Free internal session cache. However: the remove_cb() may reference 2181 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 2182 * after the sessions were flushed. 2183 * As the ex_data handling routines might also touch the session cache, 2184 * the most secure solution seems to be: empty (flush) the cache, then 2185 * free ex_data, then finally free the cache. 2186 * (See ticket [openssl.org #212].) 2187 */ 2188 if (ctx->sessions != NULL) 2189 SSL_CTX_flush_sessions(ctx, 0); 2190 2191 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->ex_data); 2192 2193 lh_SSL_SESSION_free(ctx->sessions); 2194 2195 X509_STORE_free(ctx->cert_store); 2196 sk_SSL_CIPHER_free(ctx->cipher_list); 2197 sk_SSL_CIPHER_free(ctx->cipher_list_tls13); 2198 ssl_cert_free(ctx->cert); 2199 sk_X509_NAME_pop_free(ctx->client_CA, X509_NAME_free); 2200 sk_X509_pop_free(ctx->extra_certs, X509_free); 2201 2202#ifndef OPENSSL_NO_SRTP 2203 if (ctx->srtp_profiles) 2204 sk_SRTP_PROTECTION_PROFILE_free(ctx->srtp_profiles); 2205#endif 2206 2207 free(ctx->tlsext_ecpointformatlist); 2208 free(ctx->tlsext_supportedgroups); 2209 2210 free(ctx->alpn_client_proto_list); 2211 2212 free(ctx); 2213} 2214LSSL_ALIAS(SSL_CTX_free); 2215 2216int 2217SSL_CTX_up_ref(SSL_CTX *ctx) 2218{ 2219 return CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX) > 1; 2220} 2221LSSL_ALIAS(SSL_CTX_up_ref); 2222 2223pem_password_cb * 2224SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 2225{ 2226 return (ctx->default_passwd_callback); 2227} 2228LSSL_ALIAS(SSL_CTX_get_default_passwd_cb); 2229 2230void 2231SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 2232{ 2233 ctx->default_passwd_callback = cb; 2234} 2235LSSL_ALIAS(SSL_CTX_set_default_passwd_cb); 2236 2237void * 2238SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 2239{ 2240 return ctx->default_passwd_callback_userdata; 2241} 2242LSSL_ALIAS(SSL_CTX_get_default_passwd_cb_userdata); 2243 2244void 2245SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 2246{ 2247 ctx->default_passwd_callback_userdata = u; 2248} 2249LSSL_ALIAS(SSL_CTX_set_default_passwd_cb_userdata); 2250 2251void 2252SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, 2253 int (*cb)(X509_STORE_CTX *, void *), void *arg) 2254{ 2255 ctx->app_verify_callback = cb; 2256 ctx->app_verify_arg = arg; 2257} 2258LSSL_ALIAS(SSL_CTX_set_cert_verify_callback); 2259 2260void 2261SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 2262{ 2263 ctx->verify_mode = mode; 2264 ctx->default_verify_callback = cb; 2265} 2266LSSL_ALIAS(SSL_CTX_set_verify); 2267 2268void 2269SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 2270{ 2271 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 2272} 2273LSSL_ALIAS(SSL_CTX_set_verify_depth); 2274 2275void 2276ssl_set_cert_masks(SSL_CERT *c, const SSL_CIPHER *cipher) 2277{ 2278 unsigned long mask_a, mask_k; 2279 SSL_CERT_PKEY *cpk; 2280 2281 if (c == NULL) 2282 return; 2283 2284 mask_a = SSL_aNULL | SSL_aTLS1_3; 2285 mask_k = SSL_kECDHE | SSL_kTLS1_3; 2286 2287 if (c->dhe_params != NULL || c->dhe_params_cb != NULL || 2288 c->dhe_params_auto != 0) 2289 mask_k |= SSL_kDHE; 2290 2291 cpk = &(c->pkeys[SSL_PKEY_ECC]); 2292 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2293 /* Key usage, if present, must allow signing. */ 2294 if (X509_get_key_usage(cpk->x509) & X509v3_KU_DIGITAL_SIGNATURE) 2295 mask_a |= SSL_aECDSA; 2296 } 2297 2298 cpk = &(c->pkeys[SSL_PKEY_RSA]); 2299 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2300 mask_a |= SSL_aRSA; 2301 mask_k |= SSL_kRSA; 2302 } 2303 2304 c->mask_k = mask_k; 2305 c->mask_a = mask_a; 2306 c->valid = 1; 2307} 2308 2309/* See if this handshake is using an ECC cipher suite. */ 2310int 2311ssl_using_ecc_cipher(SSL *s) 2312{ 2313 unsigned long alg_a, alg_k; 2314 2315 alg_a = s->s3->hs.cipher->algorithm_auth; 2316 alg_k = s->s3->hs.cipher->algorithm_mkey; 2317 2318 return s->session->tlsext_ecpointformatlist != NULL && 2319 s->session->tlsext_ecpointformatlist_length > 0 && 2320 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 2321} 2322 2323int 2324ssl_check_srvr_ecc_cert_and_alg(SSL *s, X509 *x) 2325{ 2326 const SSL_CIPHER *cs = s->s3->hs.cipher; 2327 unsigned long alg_a; 2328 2329 alg_a = cs->algorithm_auth; 2330 2331 if (alg_a & SSL_aECDSA) { 2332 /* Key usage, if present, must allow signing. */ 2333 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { 2334 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2335 return (0); 2336 } 2337 } 2338 2339 return (1); 2340} 2341 2342SSL_CERT_PKEY * 2343ssl_get_server_send_pkey(const SSL *s) 2344{ 2345 unsigned long alg_a; 2346 SSL_CERT *c; 2347 int i; 2348 2349 c = s->cert; 2350 ssl_set_cert_masks(c, s->s3->hs.cipher); 2351 2352 alg_a = s->s3->hs.cipher->algorithm_auth; 2353 2354 if (alg_a & SSL_aECDSA) { 2355 i = SSL_PKEY_ECC; 2356 } else if (alg_a & SSL_aRSA) { 2357 i = SSL_PKEY_RSA; 2358 } else { /* if (alg_a & SSL_aNULL) */ 2359 SSLerror(s, ERR_R_INTERNAL_ERROR); 2360 return (NULL); 2361 } 2362 2363 return (c->pkeys + i); 2364} 2365 2366EVP_PKEY * 2367ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2368 const struct ssl_sigalg **sap) 2369{ 2370 const struct ssl_sigalg *sigalg = NULL; 2371 EVP_PKEY *pkey = NULL; 2372 unsigned long alg_a; 2373 SSL_CERT *c; 2374 int idx = -1; 2375 2376 alg_a = cipher->algorithm_auth; 2377 c = s->cert; 2378 2379 if (alg_a & SSL_aRSA) { 2380 idx = SSL_PKEY_RSA; 2381 } else if ((alg_a & SSL_aECDSA) && 2382 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2383 idx = SSL_PKEY_ECC; 2384 if (idx == -1) { 2385 SSLerror(s, ERR_R_INTERNAL_ERROR); 2386 return (NULL); 2387 } 2388 2389 pkey = c->pkeys[idx].privatekey; 2390 if ((sigalg = ssl_sigalg_select(s, pkey)) == NULL) { 2391 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2392 return (NULL); 2393 } 2394 *pmd = sigalg->md(); 2395 *sap = sigalg; 2396 2397 return (pkey); 2398} 2399 2400size_t 2401ssl_dhe_params_auto_key_bits(SSL *s) 2402{ 2403 SSL_CERT_PKEY *cpk; 2404 int key_bits; 2405 2406 if (s->cert->dhe_params_auto == 2) { 2407 key_bits = 1024; 2408 } else if (s->s3->hs.cipher->algorithm_auth & SSL_aNULL) { 2409 key_bits = 1024; 2410 if (s->s3->hs.cipher->strength_bits == 256) 2411 key_bits = 3072; 2412 } else { 2413 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2414 return 0; 2415 if (cpk->privatekey == NULL || 2416 EVP_PKEY_get0_RSA(cpk->privatekey) == NULL) 2417 return 0; 2418 if ((key_bits = EVP_PKEY_bits(cpk->privatekey)) <= 0) 2419 return 0; 2420 } 2421 2422 return key_bits; 2423} 2424 2425static int 2426ssl_should_update_external_cache(SSL *s, int mode) 2427{ 2428 int cache_mode; 2429 2430 cache_mode = s->session_ctx->session_cache_mode; 2431 2432 /* Don't cache if mode says not to */ 2433 if ((cache_mode & mode) == 0) 2434 return 0; 2435 2436 /* if it is not already cached, cache it */ 2437 if (!s->hit) 2438 return 1; 2439 2440 /* If it's TLS 1.3, do it to match OpenSSL */ 2441 if (s->s3->hs.negotiated_tls_version >= TLS1_3_VERSION) 2442 return 1; 2443 2444 return 0; 2445} 2446 2447static int 2448ssl_should_update_internal_cache(SSL *s, int mode) 2449{ 2450 int cache_mode; 2451 2452 cache_mode = s->session_ctx->session_cache_mode; 2453 2454 /* Don't cache if mode says not to */ 2455 if ((cache_mode & mode) == 0) 2456 return 0; 2457 2458 /* If it is already cached, don't cache it again */ 2459 if (s->hit) 2460 return 0; 2461 2462 if ((cache_mode & SSL_SESS_CACHE_NO_INTERNAL_STORE) != 0) 2463 return 0; 2464 2465 /* If we are lesser than TLS 1.3, Cache it. */ 2466 if (s->s3->hs.negotiated_tls_version < TLS1_3_VERSION) 2467 return 1; 2468 2469 /* Below this we consider TLS 1.3 or later */ 2470 2471 /* If it's not a server, add it? OpenSSL does this. */ 2472 if (!s->server) 2473 return 1; 2474 2475 /* XXX if we support early data / PSK need to add */ 2476 2477 /* 2478 * If we have the remove session callback, we will want 2479 * to know about this even if it's a stateless ticket 2480 * from 1.3 so we can know when it is removed. 2481 */ 2482 if (s->session_ctx->remove_session_cb != NULL) 2483 return 1; 2484 2485 /* If we have set OP_NO_TICKET, cache it. */ 2486 if ((s->options & SSL_OP_NO_TICKET) != 0) 2487 return 1; 2488 2489 /* Otherwise do not cache */ 2490 return 0; 2491} 2492 2493void 2494ssl_update_cache(SSL *s, int mode) 2495{ 2496 int cache_mode, do_callback; 2497 2498 if (s->session->session_id_length == 0) 2499 return; 2500 2501 cache_mode = s->session_ctx->session_cache_mode; 2502 do_callback = ssl_should_update_external_cache(s, mode); 2503 2504 if (ssl_should_update_internal_cache(s, mode)) { 2505 /* 2506 * XXX should we fail if the add to the internal cache 2507 * fails? OpenSSL doesn't care.. 2508 */ 2509 (void) SSL_CTX_add_session(s->session_ctx, s->session); 2510 } 2511 2512 /* 2513 * Update the "external cache" by calling the new session 2514 * callback if present, even with TLS 1.3 without early data 2515 * "because some application just want to know about the 2516 * creation of a session and aren't doing a full cache". 2517 * Apparently, if they are doing a full cache, they'll have 2518 * some fun, but we endeavour to give application writers the 2519 * same glorious experience they expect from OpenSSL which 2520 * does it this way. 2521 */ 2522 if (do_callback && s->session_ctx->new_session_cb != NULL) { 2523 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2524 if (!s->session_ctx->new_session_cb(s, s->session)) 2525 SSL_SESSION_free(s->session); 2526 } 2527 2528 /* Auto flush every 255 connections. */ 2529 if (!(cache_mode & SSL_SESS_CACHE_NO_AUTO_CLEAR) && 2530 (cache_mode & mode) != 0) { 2531 int connections; 2532 if (mode & SSL_SESS_CACHE_CLIENT) 2533 connections = s->session_ctx->stats.sess_connect_good; 2534 else 2535 connections = s->session_ctx->stats.sess_accept_good; 2536 if ((connections & 0xff) == 0xff) 2537 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2538 } 2539} 2540 2541const SSL_METHOD * 2542SSL_get_ssl_method(SSL *s) 2543{ 2544 return (s->method); 2545} 2546LSSL_ALIAS(SSL_get_ssl_method); 2547 2548int 2549SSL_set_ssl_method(SSL *s, const SSL_METHOD *method) 2550{ 2551 int (*handshake_func)(SSL *) = NULL; 2552 int ret = 1; 2553 2554 if (s->method == method) 2555 return (ret); 2556 2557 if (s->handshake_func == s->method->ssl_connect) 2558 handshake_func = method->ssl_connect; 2559 else if (s->handshake_func == s->method->ssl_accept) 2560 handshake_func = method->ssl_accept; 2561 2562 if (s->method->version == method->version) { 2563 s->method = method; 2564 } else { 2565 s->method->ssl_free(s); 2566 s->method = method; 2567 ret = s->method->ssl_new(s); 2568 } 2569 s->handshake_func = handshake_func; 2570 2571 return (ret); 2572} 2573LSSL_ALIAS(SSL_set_ssl_method); 2574 2575int 2576SSL_get_error(const SSL *s, int i) 2577{ 2578 unsigned long l; 2579 int reason; 2580 BIO *bio; 2581 2582 if (i > 0) 2583 return (SSL_ERROR_NONE); 2584 2585 /* 2586 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2587 * etc, where we do encode the error. 2588 */ 2589 if ((l = ERR_peek_error()) != 0) { 2590 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2591 return (SSL_ERROR_SYSCALL); 2592 else 2593 return (SSL_ERROR_SSL); 2594 } 2595 2596 if (SSL_want_read(s)) { 2597 bio = SSL_get_rbio(s); 2598 if (BIO_should_read(bio)) { 2599 return (SSL_ERROR_WANT_READ); 2600 } else if (BIO_should_write(bio)) { 2601 /* 2602 * This one doesn't make too much sense... We never 2603 * try to write to the rbio, and an application 2604 * program where rbio and wbio are separate couldn't 2605 * even know what it should wait for. However if we 2606 * ever set s->rwstate incorrectly (so that we have 2607 * SSL_want_read(s) instead of SSL_want_write(s)) 2608 * and rbio and wbio *are* the same, this test works 2609 * around that bug; so it might be safer to keep it. 2610 */ 2611 return (SSL_ERROR_WANT_WRITE); 2612 } else if (BIO_should_io_special(bio)) { 2613 reason = BIO_get_retry_reason(bio); 2614 if (reason == BIO_RR_CONNECT) 2615 return (SSL_ERROR_WANT_CONNECT); 2616 else if (reason == BIO_RR_ACCEPT) 2617 return (SSL_ERROR_WANT_ACCEPT); 2618 else 2619 return (SSL_ERROR_SYSCALL); /* unknown */ 2620 } 2621 } 2622 2623 if (SSL_want_write(s)) { 2624 bio = SSL_get_wbio(s); 2625 if (BIO_should_write(bio)) { 2626 return (SSL_ERROR_WANT_WRITE); 2627 } else if (BIO_should_read(bio)) { 2628 /* 2629 * See above (SSL_want_read(s) with 2630 * BIO_should_write(bio)) 2631 */ 2632 return (SSL_ERROR_WANT_READ); 2633 } else if (BIO_should_io_special(bio)) { 2634 reason = BIO_get_retry_reason(bio); 2635 if (reason == BIO_RR_CONNECT) 2636 return (SSL_ERROR_WANT_CONNECT); 2637 else if (reason == BIO_RR_ACCEPT) 2638 return (SSL_ERROR_WANT_ACCEPT); 2639 else 2640 return (SSL_ERROR_SYSCALL); 2641 } 2642 } 2643 2644 if (SSL_want_x509_lookup(s)) 2645 return (SSL_ERROR_WANT_X509_LOOKUP); 2646 2647 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2648 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2649 return (SSL_ERROR_ZERO_RETURN); 2650 2651 return (SSL_ERROR_SYSCALL); 2652} 2653LSSL_ALIAS(SSL_get_error); 2654 2655int 2656SSL_CTX_set_quic_method(SSL_CTX *ctx, const SSL_QUIC_METHOD *quic_method) 2657{ 2658 if (ctx->method->dtls) 2659 return 0; 2660 2661 ctx->quic_method = quic_method; 2662 2663 return 1; 2664} 2665LSSL_ALIAS(SSL_CTX_set_quic_method); 2666 2667int 2668SSL_set_quic_method(SSL *ssl, const SSL_QUIC_METHOD *quic_method) 2669{ 2670 if (ssl->method->dtls) 2671 return 0; 2672 2673 ssl->quic_method = quic_method; 2674 2675 return 1; 2676} 2677LSSL_ALIAS(SSL_set_quic_method); 2678 2679size_t 2680SSL_quic_max_handshake_flight_len(const SSL *ssl, 2681 enum ssl_encryption_level_t level) 2682{ 2683 size_t flight_len; 2684 2685 /* Limit flights to 16K when there are no large certificate messages. */ 2686 flight_len = 16384; 2687 2688 switch (level) { 2689 case ssl_encryption_initial: 2690 return flight_len; 2691 2692 case ssl_encryption_early_data: 2693 /* QUIC does not send EndOfEarlyData. */ 2694 return 0; 2695 2696 case ssl_encryption_handshake: 2697 if (ssl->server) { 2698 /* 2699 * Servers may receive Certificate message if configured 2700 * to request client certificates. 2701 */ 2702 if ((SSL_get_verify_mode(ssl) & SSL_VERIFY_PEER) != 0 && 2703 ssl->max_cert_list > flight_len) 2704 flight_len = ssl->max_cert_list; 2705 } else { 2706 /* 2707 * Clients may receive both Certificate message and a 2708 * CertificateRequest message. 2709 */ 2710 if (ssl->max_cert_list * 2 > flight_len) 2711 flight_len = ssl->max_cert_list * 2; 2712 } 2713 return flight_len; 2714 case ssl_encryption_application: 2715 /* 2716 * Note there is not actually a bound on the number of 2717 * NewSessionTickets one may send in a row. This level may need 2718 * more involved flow control. 2719 */ 2720 return flight_len; 2721 } 2722 2723 return 0; 2724} 2725LSSL_ALIAS(SSL_quic_max_handshake_flight_len); 2726 2727enum ssl_encryption_level_t 2728SSL_quic_read_level(const SSL *ssl) 2729{ 2730 return ssl->s3->hs.tls13.quic_read_level; 2731} 2732LSSL_ALIAS(SSL_quic_read_level); 2733 2734enum ssl_encryption_level_t 2735SSL_quic_write_level(const SSL *ssl) 2736{ 2737 return ssl->s3->hs.tls13.quic_write_level; 2738} 2739LSSL_ALIAS(SSL_quic_write_level); 2740 2741int 2742SSL_provide_quic_data(SSL *ssl, enum ssl_encryption_level_t level, 2743 const uint8_t *data, size_t len) 2744{ 2745 if (!SSL_is_quic(ssl)) { 2746 SSLerror(ssl, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2747 return 0; 2748 } 2749 2750 if (level != SSL_quic_read_level(ssl)) { 2751 SSLerror(ssl, SSL_R_WRONG_ENCRYPTION_LEVEL_RECEIVED); 2752 return 0; 2753 } 2754 2755 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) { 2756 ssl->s3->hs.tls13.quic_read_buffer = tls_buffer_new(0); 2757 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) { 2758 SSLerror(ssl, ERR_R_MALLOC_FAILURE); 2759 return 0; 2760 } 2761 } 2762 2763 /* XXX - note that this does not currently downsize. */ 2764 tls_buffer_set_capacity_limit(ssl->s3->hs.tls13.quic_read_buffer, 2765 SSL_quic_max_handshake_flight_len(ssl, level)); 2766 2767 /* 2768 * XXX - an append that fails due to exceeding capacity should set 2769 * SSL_R_EXCESSIVE_MESSAGE_SIZE. 2770 */ 2771 return tls_buffer_append(ssl->s3->hs.tls13.quic_read_buffer, data, len); 2772} 2773LSSL_ALIAS(SSL_provide_quic_data); 2774 2775int 2776SSL_process_quic_post_handshake(SSL *ssl) 2777{ 2778 /* XXX - this needs to run PHH received. */ 2779 return 1; 2780} 2781LSSL_ALIAS(SSL_process_quic_post_handshake); 2782 2783int 2784SSL_do_handshake(SSL *s) 2785{ 2786 if (s->handshake_func == NULL) { 2787 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2788 return (-1); 2789 } 2790 2791 s->method->ssl_renegotiate_check(s); 2792 2793 if (!SSL_in_init(s) && !SSL_in_before(s)) 2794 return 1; 2795 2796 return s->handshake_func(s); 2797} 2798LSSL_ALIAS(SSL_do_handshake); 2799 2800/* 2801 * For the next 2 functions, SSL_clear() sets shutdown and so 2802 * one of these calls will reset it 2803 */ 2804void 2805SSL_set_accept_state(SSL *s) 2806{ 2807 s->server = 1; 2808 s->shutdown = 0; 2809 s->s3->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2810 s->handshake_func = s->method->ssl_accept; 2811 ssl_clear_cipher_state(s); 2812} 2813LSSL_ALIAS(SSL_set_accept_state); 2814 2815void 2816SSL_set_connect_state(SSL *s) 2817{ 2818 s->server = 0; 2819 s->shutdown = 0; 2820 s->s3->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2821 s->handshake_func = s->method->ssl_connect; 2822 ssl_clear_cipher_state(s); 2823} 2824LSSL_ALIAS(SSL_set_connect_state); 2825 2826int 2827ssl_undefined_function(SSL *s) 2828{ 2829 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2830 return (0); 2831} 2832 2833int 2834ssl_undefined_void_function(void) 2835{ 2836 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2837 return (0); 2838} 2839 2840int 2841ssl_undefined_const_function(const SSL *s) 2842{ 2843 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2844 return (0); 2845} 2846 2847const char * 2848ssl_version_string(int ver) 2849{ 2850 switch (ver) { 2851 case TLS1_VERSION: 2852 return (SSL_TXT_TLSV1); 2853 case TLS1_1_VERSION: 2854 return (SSL_TXT_TLSV1_1); 2855 case TLS1_2_VERSION: 2856 return (SSL_TXT_TLSV1_2); 2857 case TLS1_3_VERSION: 2858 return (SSL_TXT_TLSV1_3); 2859 case DTLS1_VERSION: 2860 return (SSL_TXT_DTLS1); 2861 case DTLS1_2_VERSION: 2862 return (SSL_TXT_DTLS1_2); 2863 default: 2864 return ("unknown"); 2865 } 2866} 2867 2868const char * 2869SSL_get_version(const SSL *s) 2870{ 2871 return ssl_version_string(s->version); 2872} 2873LSSL_ALIAS(SSL_get_version); 2874 2875SSL * 2876SSL_dup(SSL *s) 2877{ 2878 STACK_OF(X509_NAME) *sk; 2879 X509_NAME *xn; 2880 SSL *ret; 2881 int i; 2882 2883 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2884 goto err; 2885 2886 ret->version = s->version; 2887 ret->method = s->method; 2888 2889 if (s->session != NULL) { 2890 if (!SSL_copy_session_id(ret, s)) 2891 goto err; 2892 } else { 2893 /* 2894 * No session has been established yet, so we have to expect 2895 * that s->cert or ret->cert will be changed later -- 2896 * they should not both point to the same object, 2897 * and thus we can't use SSL_copy_session_id. 2898 */ 2899 2900 ret->method->ssl_free(ret); 2901 ret->method = s->method; 2902 ret->method->ssl_new(ret); 2903 2904 ssl_cert_free(ret->cert); 2905 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2906 goto err; 2907 2908 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2909 s->sid_ctx_length)) 2910 goto err; 2911 } 2912 2913 ret->options = s->options; 2914 ret->mode = s->mode; 2915 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2916 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2917 ret->msg_callback = s->msg_callback; 2918 ret->msg_callback_arg = s->msg_callback_arg; 2919 SSL_set_verify(ret, SSL_get_verify_mode(s), 2920 SSL_get_verify_callback(s)); 2921 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2922 ret->generate_session_id = s->generate_session_id; 2923 2924 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2925 2926 /* copy app data, a little dangerous perhaps */ 2927 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2928 &ret->ex_data, &s->ex_data)) 2929 goto err; 2930 2931 /* setup rbio, and wbio */ 2932 if (s->rbio != NULL) { 2933 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2934 goto err; 2935 } 2936 if (s->wbio != NULL) { 2937 if (s->wbio != s->rbio) { 2938 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2939 goto err; 2940 } else 2941 ret->wbio = ret->rbio; 2942 } 2943 ret->rwstate = s->rwstate; 2944 ret->in_handshake = s->in_handshake; 2945 ret->handshake_func = s->handshake_func; 2946 ret->server = s->server; 2947 ret->renegotiate = s->renegotiate; 2948 ret->new_session = s->new_session; 2949 ret->quiet_shutdown = s->quiet_shutdown; 2950 ret->shutdown = s->shutdown; 2951 /* SSL_dup does not really work at any state, though */ 2952 ret->s3->hs.state = s->s3->hs.state; 2953 ret->rstate = s->rstate; 2954 2955 /* 2956 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2957 * ret->init_off 2958 */ 2959 ret->init_num = 0; 2960 2961 ret->hit = s->hit; 2962 2963 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2964 2965 if (s->cipher_list != NULL) { 2966 if ((ret->cipher_list = 2967 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2968 goto err; 2969 } 2970 if (s->cipher_list_tls13 != NULL) { 2971 if ((ret->cipher_list_tls13 = 2972 sk_SSL_CIPHER_dup(s->cipher_list_tls13)) == NULL) 2973 goto err; 2974 } 2975 2976 /* Dup the client_CA list */ 2977 if (s->client_CA != NULL) { 2978 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 2979 ret->client_CA = sk; 2980 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2981 xn = sk_X509_NAME_value(sk, i); 2982 if (sk_X509_NAME_set(sk, i, 2983 X509_NAME_dup(xn)) == NULL) { 2984 X509_NAME_free(xn); 2985 goto err; 2986 } 2987 } 2988 } 2989 2990 return ret; 2991 err: 2992 SSL_free(ret); 2993 return NULL; 2994} 2995LSSL_ALIAS(SSL_dup); 2996 2997void 2998ssl_clear_cipher_state(SSL *s) 2999{ 3000 tls12_record_layer_clear_read_state(s->rl); 3001 tls12_record_layer_clear_write_state(s->rl); 3002} 3003 3004void 3005ssl_info_callback(const SSL *s, int type, int value) 3006{ 3007 ssl_info_callback_fn *cb; 3008 3009 if ((cb = s->info_callback) == NULL) 3010 cb = s->ctx->info_callback; 3011 if (cb != NULL) 3012 cb(s, type, value); 3013} 3014 3015void 3016ssl_msg_callback(SSL *s, int is_write, int content_type, 3017 const void *msg_buf, size_t msg_len) 3018{ 3019 if (s->msg_callback == NULL) 3020 return; 3021 3022 s->msg_callback(is_write, s->version, content_type, 3023 msg_buf, msg_len, s, s->msg_callback_arg); 3024} 3025 3026void 3027ssl_msg_callback_cbs(SSL *s, int is_write, int content_type, CBS *cbs) 3028{ 3029 ssl_msg_callback(s, is_write, content_type, CBS_data(cbs), CBS_len(cbs)); 3030} 3031 3032/* Fix this function so that it takes an optional type parameter */ 3033X509 * 3034SSL_get_certificate(const SSL *s) 3035{ 3036 return (s->cert->key->x509); 3037} 3038LSSL_ALIAS(SSL_get_certificate); 3039 3040/* Fix this function so that it takes an optional type parameter */ 3041EVP_PKEY * 3042SSL_get_privatekey(const SSL *s) 3043{ 3044 return (s->cert->key->privatekey); 3045} 3046LSSL_ALIAS(SSL_get_privatekey); 3047 3048const SSL_CIPHER * 3049SSL_get_current_cipher(const SSL *s) 3050{ 3051 if ((s->session != NULL) && (s->session->cipher != NULL)) 3052 return (s->session->cipher); 3053 return (NULL); 3054} 3055LSSL_ALIAS(SSL_get_current_cipher); 3056const void * 3057SSL_get_current_compression(SSL *s) 3058{ 3059 return (NULL); 3060} 3061LSSL_ALIAS(SSL_get_current_compression); 3062 3063const void * 3064SSL_get_current_expansion(SSL *s) 3065{ 3066 return (NULL); 3067} 3068LSSL_ALIAS(SSL_get_current_expansion); 3069 3070size_t 3071SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 3072{ 3073 size_t len = sizeof(s->s3->client_random); 3074 3075 if (out == NULL) 3076 return len; 3077 3078 if (len > max_out) 3079 len = max_out; 3080 3081 memcpy(out, s->s3->client_random, len); 3082 3083 return len; 3084} 3085LSSL_ALIAS(SSL_get_client_random); 3086 3087size_t 3088SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 3089{ 3090 size_t len = sizeof(s->s3->server_random); 3091 3092 if (out == NULL) 3093 return len; 3094 3095 if (len > max_out) 3096 len = max_out; 3097 3098 memcpy(out, s->s3->server_random, len); 3099 3100 return len; 3101} 3102LSSL_ALIAS(SSL_get_server_random); 3103 3104int 3105ssl_init_wbio_buffer(SSL *s, int push) 3106{ 3107 BIO *bbio; 3108 3109 if (s->bbio == NULL) { 3110 bbio = BIO_new(BIO_f_buffer()); 3111 if (bbio == NULL) 3112 return (0); 3113 s->bbio = bbio; 3114 } else { 3115 bbio = s->bbio; 3116 if (s->bbio == s->wbio) 3117 s->wbio = BIO_pop(s->wbio); 3118 } 3119 (void)BIO_reset(bbio); 3120/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 3121 if (!BIO_set_read_buffer_size(bbio, 1)) { 3122 SSLerror(s, ERR_R_BUF_LIB); 3123 return (0); 3124 } 3125 if (push) { 3126 if (s->wbio != bbio) 3127 s->wbio = BIO_push(bbio, s->wbio); 3128 } else { 3129 if (s->wbio == bbio) 3130 s->wbio = BIO_pop(bbio); 3131 } 3132 return (1); 3133} 3134 3135void 3136ssl_free_wbio_buffer(SSL *s) 3137{ 3138 if (s == NULL) 3139 return; 3140 3141 if (s->bbio == NULL) 3142 return; 3143 3144 if (s->bbio == s->wbio) { 3145 /* remove buffering */ 3146 s->wbio = BIO_pop(s->wbio); 3147 } 3148 BIO_free(s->bbio); 3149 s->bbio = NULL; 3150} 3151 3152void 3153SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 3154{ 3155 ctx->quiet_shutdown = mode; 3156} 3157LSSL_ALIAS(SSL_CTX_set_quiet_shutdown); 3158 3159int 3160SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 3161{ 3162 return (ctx->quiet_shutdown); 3163} 3164LSSL_ALIAS(SSL_CTX_get_quiet_shutdown); 3165 3166void 3167SSL_set_quiet_shutdown(SSL *s, int mode) 3168{ 3169 s->quiet_shutdown = mode; 3170} 3171LSSL_ALIAS(SSL_set_quiet_shutdown); 3172 3173int 3174SSL_get_quiet_shutdown(const SSL *s) 3175{ 3176 return (s->quiet_shutdown); 3177} 3178LSSL_ALIAS(SSL_get_quiet_shutdown); 3179 3180void 3181SSL_set_shutdown(SSL *s, int mode) 3182{ 3183 s->shutdown = mode; 3184} 3185LSSL_ALIAS(SSL_set_shutdown); 3186 3187int 3188SSL_get_shutdown(const SSL *s) 3189{ 3190 return (s->shutdown); 3191} 3192LSSL_ALIAS(SSL_get_shutdown); 3193 3194int 3195SSL_version(const SSL *s) 3196{ 3197 return (s->version); 3198} 3199LSSL_ALIAS(SSL_version); 3200 3201SSL_CTX * 3202SSL_get_SSL_CTX(const SSL *ssl) 3203{ 3204 return (ssl->ctx); 3205} 3206LSSL_ALIAS(SSL_get_SSL_CTX); 3207 3208SSL_CTX * 3209SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 3210{ 3211 SSL_CERT *new_cert; 3212 3213 if (ctx == NULL) 3214 ctx = ssl->initial_ctx; 3215 if (ssl->ctx == ctx) 3216 return (ssl->ctx); 3217 3218 if ((new_cert = ssl_cert_dup(ctx->cert)) == NULL) 3219 return NULL; 3220 ssl_cert_free(ssl->cert); 3221 ssl->cert = new_cert; 3222 3223 SSL_CTX_up_ref(ctx); 3224 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 3225 ssl->ctx = ctx; 3226 3227 return (ssl->ctx); 3228} 3229LSSL_ALIAS(SSL_set_SSL_CTX); 3230 3231int 3232SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 3233{ 3234 return (X509_STORE_set_default_paths(ctx->cert_store)); 3235} 3236LSSL_ALIAS(SSL_CTX_set_default_verify_paths); 3237 3238int 3239SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 3240 const char *CApath) 3241{ 3242 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 3243} 3244LSSL_ALIAS(SSL_CTX_load_verify_locations); 3245 3246int 3247SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 3248{ 3249 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 3250} 3251LSSL_ALIAS(SSL_CTX_load_verify_mem); 3252 3253void 3254SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 3255{ 3256 ssl->info_callback = cb; 3257} 3258LSSL_ALIAS(SSL_set_info_callback); 3259 3260void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 3261{ 3262 return (ssl->info_callback); 3263} 3264LSSL_ALIAS(SSL_get_info_callback); 3265 3266int 3267SSL_state(const SSL *ssl) 3268{ 3269 return (ssl->s3->hs.state); 3270} 3271LSSL_ALIAS(SSL_state); 3272 3273void 3274SSL_set_state(SSL *ssl, int state) 3275{ 3276 ssl->s3->hs.state = state; 3277} 3278LSSL_ALIAS(SSL_set_state); 3279 3280void 3281SSL_set_verify_result(SSL *ssl, long arg) 3282{ 3283 ssl->verify_result = arg; 3284} 3285LSSL_ALIAS(SSL_set_verify_result); 3286 3287long 3288SSL_get_verify_result(const SSL *ssl) 3289{ 3290 return (ssl->verify_result); 3291} 3292LSSL_ALIAS(SSL_get_verify_result); 3293 3294int 3295SSL_verify_client_post_handshake(SSL *ssl) 3296{ 3297 return 0; 3298} 3299LSSL_ALIAS(SSL_verify_client_post_handshake); 3300 3301void 3302SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val) 3303{ 3304 return; 3305} 3306LSSL_ALIAS(SSL_CTX_set_post_handshake_auth); 3307 3308void 3309SSL_set_post_handshake_auth(SSL *ssl, int val) 3310{ 3311 return; 3312} 3313LSSL_ALIAS(SSL_set_post_handshake_auth); 3314 3315int 3316SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3317 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3318{ 3319 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 3320 new_func, dup_func, free_func)); 3321} 3322LSSL_ALIAS(SSL_get_ex_new_index); 3323 3324int 3325SSL_set_ex_data(SSL *s, int idx, void *arg) 3326{ 3327 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3328} 3329LSSL_ALIAS(SSL_set_ex_data); 3330 3331void * 3332SSL_get_ex_data(const SSL *s, int idx) 3333{ 3334 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3335} 3336LSSL_ALIAS(SSL_get_ex_data); 3337 3338int 3339SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3340 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3341{ 3342 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 3343 new_func, dup_func, free_func)); 3344} 3345LSSL_ALIAS(SSL_CTX_get_ex_new_index); 3346 3347int 3348SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 3349{ 3350 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3351} 3352LSSL_ALIAS(SSL_CTX_set_ex_data); 3353 3354void * 3355SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 3356{ 3357 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3358} 3359LSSL_ALIAS(SSL_CTX_get_ex_data); 3360 3361int 3362ssl_ok(SSL *s) 3363{ 3364 return (1); 3365} 3366 3367X509_STORE * 3368SSL_CTX_get_cert_store(const SSL_CTX *ctx) 3369{ 3370 return (ctx->cert_store); 3371} 3372LSSL_ALIAS(SSL_CTX_get_cert_store); 3373 3374void 3375SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 3376{ 3377 X509_STORE_free(ctx->cert_store); 3378 ctx->cert_store = store; 3379} 3380LSSL_ALIAS(SSL_CTX_set_cert_store); 3381 3382X509 * 3383SSL_CTX_get0_certificate(const SSL_CTX *ctx) 3384{ 3385 if (ctx->cert == NULL) 3386 return NULL; 3387 3388 return ctx->cert->key->x509; 3389} 3390LSSL_ALIAS(SSL_CTX_get0_certificate); 3391 3392EVP_PKEY * 3393SSL_CTX_get0_privatekey(const SSL_CTX *ctx) 3394{ 3395 if (ctx->cert == NULL) 3396 return NULL; 3397 3398 return ctx->cert->key->privatekey; 3399} 3400LSSL_ALIAS(SSL_CTX_get0_privatekey); 3401 3402int 3403SSL_want(const SSL *s) 3404{ 3405 return (s->rwstate); 3406} 3407LSSL_ALIAS(SSL_want); 3408 3409void 3410SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 3411 int keylength)) 3412{ 3413 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3414} 3415LSSL_ALIAS(SSL_CTX_set_tmp_rsa_callback); 3416 3417void 3418SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 3419 int keylength)) 3420{ 3421 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3422} 3423LSSL_ALIAS(SSL_set_tmp_rsa_callback); 3424 3425void 3426SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 3427 int keylength)) 3428{ 3429 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3430} 3431LSSL_ALIAS(SSL_CTX_set_tmp_dh_callback); 3432 3433void 3434SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 3435 int keylength)) 3436{ 3437 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3438} 3439LSSL_ALIAS(SSL_set_tmp_dh_callback); 3440 3441void 3442SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 3443 int is_export, int keylength)) 3444{ 3445 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 3446 (void (*)(void))ecdh); 3447} 3448LSSL_ALIAS(SSL_CTX_set_tmp_ecdh_callback); 3449 3450void 3451SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 3452 int keylength)) 3453{ 3454 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 3455} 3456LSSL_ALIAS(SSL_set_tmp_ecdh_callback); 3457 3458 3459void 3460SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 3461 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3462{ 3463 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 3464 (void (*)(void))cb); 3465} 3466LSSL_ALIAS(SSL_CTX_set_msg_callback); 3467 3468void 3469SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 3470 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3471{ 3472 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3473} 3474LSSL_ALIAS(SSL_set_msg_callback); 3475 3476int 3477SSL_cache_hit(SSL *s) 3478{ 3479 return (s->hit); 3480} 3481LSSL_ALIAS(SSL_cache_hit); 3482 3483int 3484SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 3485{ 3486 return ctx->min_proto_version; 3487} 3488LSSL_ALIAS(SSL_CTX_get_min_proto_version); 3489 3490int 3491SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 3492{ 3493 return ssl_version_set_min(ctx->method, version, 3494 ctx->max_tls_version, &ctx->min_tls_version, 3495 &ctx->min_proto_version); 3496} 3497LSSL_ALIAS(SSL_CTX_set_min_proto_version); 3498 3499int 3500SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 3501{ 3502 return ctx->max_proto_version; 3503} 3504LSSL_ALIAS(SSL_CTX_get_max_proto_version); 3505 3506int 3507SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 3508{ 3509 return ssl_version_set_max(ctx->method, version, 3510 ctx->min_tls_version, &ctx->max_tls_version, 3511 &ctx->max_proto_version); 3512} 3513LSSL_ALIAS(SSL_CTX_set_max_proto_version); 3514 3515int 3516SSL_get_min_proto_version(SSL *ssl) 3517{ 3518 return ssl->min_proto_version; 3519} 3520LSSL_ALIAS(SSL_get_min_proto_version); 3521 3522int 3523SSL_set_min_proto_version(SSL *ssl, uint16_t version) 3524{ 3525 return ssl_version_set_min(ssl->method, version, 3526 ssl->max_tls_version, &ssl->min_tls_version, 3527 &ssl->min_proto_version); 3528} 3529LSSL_ALIAS(SSL_set_min_proto_version); 3530int 3531SSL_get_max_proto_version(SSL *ssl) 3532{ 3533 return ssl->max_proto_version; 3534} 3535LSSL_ALIAS(SSL_get_max_proto_version); 3536 3537int 3538SSL_set_max_proto_version(SSL *ssl, uint16_t version) 3539{ 3540 return ssl_version_set_max(ssl->method, version, 3541 ssl->min_tls_version, &ssl->max_tls_version, 3542 &ssl->max_proto_version); 3543} 3544LSSL_ALIAS(SSL_set_max_proto_version); 3545 3546const SSL_METHOD * 3547SSL_CTX_get_ssl_method(const SSL_CTX *ctx) 3548{ 3549 return ctx->method; 3550} 3551LSSL_ALIAS(SSL_CTX_get_ssl_method); 3552 3553int 3554SSL_CTX_get_security_level(const SSL_CTX *ctx) 3555{ 3556 return ctx->cert->security_level; 3557} 3558LSSL_ALIAS(SSL_CTX_get_security_level); 3559 3560void 3561SSL_CTX_set_security_level(SSL_CTX *ctx, int level) 3562{ 3563 ctx->cert->security_level = level; 3564} 3565LSSL_ALIAS(SSL_CTX_set_security_level); 3566 3567int 3568SSL_get_security_level(const SSL *ssl) 3569{ 3570 return ssl->cert->security_level; 3571} 3572LSSL_ALIAS(SSL_get_security_level); 3573 3574void 3575SSL_set_security_level(SSL *ssl, int level) 3576{ 3577 ssl->cert->security_level = level; 3578} 3579LSSL_ALIAS(SSL_set_security_level); 3580 3581int 3582SSL_is_quic(const SSL *ssl) 3583{ 3584 return ssl->quic_method != NULL; 3585} 3586LSSL_ALIAS(SSL_is_quic); 3587 3588int 3589SSL_set_quic_transport_params(SSL *ssl, const uint8_t *params, 3590 size_t params_len) 3591{ 3592 freezero(ssl->quic_transport_params, 3593 ssl->quic_transport_params_len); 3594 ssl->quic_transport_params = NULL; 3595 ssl->quic_transport_params_len = 0; 3596 3597 if ((ssl->quic_transport_params = malloc(params_len)) == NULL) 3598 return 0; 3599 3600 memcpy(ssl->quic_transport_params, params, params_len); 3601 ssl->quic_transport_params_len = params_len; 3602 3603 return 1; 3604} 3605LSSL_ALIAS(SSL_set_quic_transport_params); 3606 3607void 3608SSL_get_peer_quic_transport_params(const SSL *ssl, const uint8_t **out_params, 3609 size_t *out_params_len) 3610{ 3611 *out_params = ssl->s3->peer_quic_transport_params; 3612 *out_params_len = ssl->s3->peer_quic_transport_params_len; 3613} 3614LSSL_ALIAS(SSL_get_peer_quic_transport_params); 3615 3616void 3617SSL_set_quic_use_legacy_codepoint(SSL *ssl, int use_legacy) 3618{ 3619 /* Not supported. */ 3620} 3621LSSL_ALIAS(SSL_set_quic_use_legacy_codepoint); 3622