ssl_lib.c revision 1.315
1/* $OpenBSD: ssl_lib.c,v 1.315 2023/11/19 15:51:49 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 int refs = CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL); 609 return (refs > 1) ? 1 : 0; 610} 611LSSL_ALIAS(SSL_up_ref); 612 613void 614SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 615{ 616 /* If the output buffering BIO is still in place, remove it */ 617 if (s->bbio != NULL) { 618 if (s->wbio == s->bbio) { 619 s->wbio = BIO_next(s->wbio); 620 BIO_set_next(s->bbio, NULL); 621 } 622 } 623 624 if (s->rbio != rbio && s->rbio != s->wbio) 625 BIO_free_all(s->rbio); 626 if (s->wbio != wbio) 627 BIO_free_all(s->wbio); 628 s->rbio = rbio; 629 s->wbio = wbio; 630} 631LSSL_ALIAS(SSL_set_bio); 632 633BIO * 634SSL_get_rbio(const SSL *s) 635{ 636 return (s->rbio); 637} 638LSSL_ALIAS(SSL_get_rbio); 639 640void 641SSL_set0_rbio(SSL *s, BIO *rbio) 642{ 643 BIO_free_all(s->rbio); 644 s->rbio = rbio; 645} 646LSSL_ALIAS(SSL_set0_rbio); 647 648BIO * 649SSL_get_wbio(const SSL *s) 650{ 651 return (s->wbio); 652} 653LSSL_ALIAS(SSL_get_wbio); 654 655int 656SSL_get_fd(const SSL *s) 657{ 658 return (SSL_get_rfd(s)); 659} 660LSSL_ALIAS(SSL_get_fd); 661 662int 663SSL_get_rfd(const SSL *s) 664{ 665 int ret = -1; 666 BIO *b, *r; 667 668 b = SSL_get_rbio(s); 669 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 670 if (r != NULL) 671 BIO_get_fd(r, &ret); 672 return (ret); 673} 674LSSL_ALIAS(SSL_get_rfd); 675 676int 677SSL_get_wfd(const SSL *s) 678{ 679 int ret = -1; 680 BIO *b, *r; 681 682 b = SSL_get_wbio(s); 683 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 684 if (r != NULL) 685 BIO_get_fd(r, &ret); 686 return (ret); 687} 688LSSL_ALIAS(SSL_get_wfd); 689 690int 691SSL_set_fd(SSL *s, int fd) 692{ 693 int ret = 0; 694 BIO *bio = NULL; 695 696 bio = BIO_new(BIO_s_socket()); 697 698 if (bio == NULL) { 699 SSLerror(s, ERR_R_BUF_LIB); 700 goto err; 701 } 702 BIO_set_fd(bio, fd, BIO_NOCLOSE); 703 SSL_set_bio(s, bio, bio); 704 ret = 1; 705 err: 706 return (ret); 707} 708LSSL_ALIAS(SSL_set_fd); 709 710int 711SSL_set_wfd(SSL *s, int fd) 712{ 713 int ret = 0; 714 BIO *bio = NULL; 715 716 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 717 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 718 bio = BIO_new(BIO_s_socket()); 719 720 if (bio == NULL) { 721 SSLerror(s, ERR_R_BUF_LIB); 722 goto err; 723 } 724 BIO_set_fd(bio, fd, BIO_NOCLOSE); 725 SSL_set_bio(s, SSL_get_rbio(s), bio); 726 } else 727 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 728 ret = 1; 729 err: 730 return (ret); 731} 732LSSL_ALIAS(SSL_set_wfd); 733 734int 735SSL_set_rfd(SSL *s, int fd) 736{ 737 int ret = 0; 738 BIO *bio = NULL; 739 740 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 741 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 742 bio = BIO_new(BIO_s_socket()); 743 744 if (bio == NULL) { 745 SSLerror(s, ERR_R_BUF_LIB); 746 goto err; 747 } 748 BIO_set_fd(bio, fd, BIO_NOCLOSE); 749 SSL_set_bio(s, bio, SSL_get_wbio(s)); 750 } else 751 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 752 ret = 1; 753 err: 754 return (ret); 755} 756LSSL_ALIAS(SSL_set_rfd); 757 758 759/* return length of latest Finished message we sent, copy to 'buf' */ 760size_t 761SSL_get_finished(const SSL *s, void *buf, size_t count) 762{ 763 size_t ret; 764 765 ret = s->s3->hs.finished_len; 766 if (count > ret) 767 count = ret; 768 memcpy(buf, s->s3->hs.finished, count); 769 return (ret); 770} 771LSSL_ALIAS(SSL_get_finished); 772 773/* return length of latest Finished message we expected, copy to 'buf' */ 774size_t 775SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 776{ 777 size_t ret; 778 779 ret = s->s3->hs.peer_finished_len; 780 if (count > ret) 781 count = ret; 782 memcpy(buf, s->s3->hs.peer_finished, count); 783 return (ret); 784} 785LSSL_ALIAS(SSL_get_peer_finished); 786 787 788int 789SSL_get_verify_mode(const SSL *s) 790{ 791 return (s->verify_mode); 792} 793LSSL_ALIAS(SSL_get_verify_mode); 794 795int 796SSL_get_verify_depth(const SSL *s) 797{ 798 return (X509_VERIFY_PARAM_get_depth(s->param)); 799} 800LSSL_ALIAS(SSL_get_verify_depth); 801 802int 803(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 804{ 805 return (s->verify_callback); 806} 807LSSL_ALIAS(SSL_get_verify_callback); 808 809void 810SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) 811{ 812 ctx->keylog_callback = cb; 813} 814LSSL_ALIAS(SSL_CTX_set_keylog_callback); 815 816SSL_CTX_keylog_cb_func 817SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) 818{ 819 return (ctx->keylog_callback); 820} 821LSSL_ALIAS(SSL_CTX_get_keylog_callback); 822 823int 824SSL_set_num_tickets(SSL *s, size_t num_tickets) 825{ 826 s->num_tickets = num_tickets; 827 828 return 1; 829} 830LSSL_ALIAS(SSL_set_num_tickets); 831 832size_t 833SSL_get_num_tickets(const SSL *s) 834{ 835 return s->num_tickets; 836} 837LSSL_ALIAS(SSL_get_num_tickets); 838 839int 840SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets) 841{ 842 ctx->num_tickets = num_tickets; 843 844 return 1; 845} 846LSSL_ALIAS(SSL_CTX_set_num_tickets); 847 848size_t 849SSL_CTX_get_num_tickets(const SSL_CTX *ctx) 850{ 851 return ctx->num_tickets; 852} 853LSSL_ALIAS(SSL_CTX_get_num_tickets); 854 855int 856SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 857{ 858 return (ctx->verify_mode); 859} 860LSSL_ALIAS(SSL_CTX_get_verify_mode); 861 862int 863SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 864{ 865 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 866} 867LSSL_ALIAS(SSL_CTX_get_verify_depth); 868 869int 870(*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 871{ 872 return (ctx->default_verify_callback); 873} 874LSSL_ALIAS(SSL_CTX_get_verify_callback); 875 876void 877SSL_set_verify(SSL *s, int mode, 878 int (*callback)(int ok, X509_STORE_CTX *ctx)) 879{ 880 s->verify_mode = mode; 881 if (callback != NULL) 882 s->verify_callback = callback; 883} 884LSSL_ALIAS(SSL_set_verify); 885 886void 887SSL_set_verify_depth(SSL *s, int depth) 888{ 889 X509_VERIFY_PARAM_set_depth(s->param, depth); 890} 891LSSL_ALIAS(SSL_set_verify_depth); 892 893void 894SSL_set_read_ahead(SSL *s, int yes) 895{ 896 s->read_ahead = yes; 897} 898LSSL_ALIAS(SSL_set_read_ahead); 899 900int 901SSL_get_read_ahead(const SSL *s) 902{ 903 return (s->read_ahead); 904} 905LSSL_ALIAS(SSL_get_read_ahead); 906 907int 908SSL_pending(const SSL *s) 909{ 910 return (s->method->ssl_pending(s)); 911} 912LSSL_ALIAS(SSL_pending); 913 914X509 * 915SSL_get_peer_certificate(const SSL *s) 916{ 917 X509 *cert; 918 919 if (s == NULL || s->session == NULL) 920 return NULL; 921 922 if ((cert = s->session->peer_cert) == NULL) 923 return NULL; 924 925 X509_up_ref(cert); 926 927 return cert; 928} 929LSSL_ALIAS(SSL_get_peer_certificate); 930 931STACK_OF(X509) * 932SSL_get_peer_cert_chain(const SSL *s) 933{ 934 if (s == NULL) 935 return NULL; 936 937 /* 938 * Achtung! Due to API inconsistency, a client includes the peer's leaf 939 * certificate in the peer certificate chain, while a server does not. 940 */ 941 if (!s->server) 942 return s->s3->hs.peer_certs; 943 944 return s->s3->hs.peer_certs_no_leaf; 945} 946LSSL_ALIAS(SSL_get_peer_cert_chain); 947 948STACK_OF(X509) * 949SSL_get0_verified_chain(const SSL *s) 950{ 951 if (s->s3 == NULL) 952 return NULL; 953 return s->s3->hs.verified_chain; 954} 955LSSL_ALIAS(SSL_get0_verified_chain); 956 957/* 958 * Now in theory, since the calling process own 't' it should be safe to 959 * modify. We need to be able to read f without being hassled 960 */ 961int 962SSL_copy_session_id(SSL *t, const SSL *f) 963{ 964 SSL_CERT *tmp; 965 966 /* Do we need to do SSL locking? */ 967 if (!SSL_set_session(t, SSL_get_session(f))) 968 return 0; 969 970 /* What if we are set up for one protocol but want to talk another? */ 971 if (t->method != f->method) { 972 t->method->ssl_free(t); 973 t->method = f->method; 974 if (!t->method->ssl_new(t)) 975 return 0; 976 } 977 978 tmp = t->cert; 979 if (f->cert != NULL) { 980 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 981 t->cert = f->cert; 982 } else 983 t->cert = NULL; 984 ssl_cert_free(tmp); 985 986 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) 987 return 0; 988 989 return 1; 990} 991LSSL_ALIAS(SSL_copy_session_id); 992 993/* Fix this so it checks all the valid key/cert options */ 994int 995SSL_CTX_check_private_key(const SSL_CTX *ctx) 996{ 997 if ((ctx == NULL) || (ctx->cert == NULL) || 998 (ctx->cert->key->x509 == NULL)) { 999 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED); 1000 return (0); 1001 } 1002 if (ctx->cert->key->privatekey == NULL) { 1003 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED); 1004 return (0); 1005 } 1006 return (X509_check_private_key(ctx->cert->key->x509, 1007 ctx->cert->key->privatekey)); 1008} 1009LSSL_ALIAS(SSL_CTX_check_private_key); 1010 1011/* Fix this function so that it takes an optional type parameter */ 1012int 1013SSL_check_private_key(const SSL *ssl) 1014{ 1015 if (ssl == NULL) { 1016 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); 1017 return (0); 1018 } 1019 if (ssl->cert == NULL) { 1020 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 1021 return (0); 1022 } 1023 if (ssl->cert->key->x509 == NULL) { 1024 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 1025 return (0); 1026 } 1027 if (ssl->cert->key->privatekey == NULL) { 1028 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 1029 return (0); 1030 } 1031 return (X509_check_private_key(ssl->cert->key->x509, 1032 ssl->cert->key->privatekey)); 1033} 1034LSSL_ALIAS(SSL_check_private_key); 1035 1036int 1037SSL_accept(SSL *s) 1038{ 1039 if (s->handshake_func == NULL) 1040 SSL_set_accept_state(s); /* Not properly initialized yet */ 1041 1042 return (s->method->ssl_accept(s)); 1043} 1044LSSL_ALIAS(SSL_accept); 1045 1046int 1047SSL_connect(SSL *s) 1048{ 1049 if (s->handshake_func == NULL) 1050 SSL_set_connect_state(s); /* Not properly initialized yet */ 1051 1052 return (s->method->ssl_connect(s)); 1053} 1054LSSL_ALIAS(SSL_connect); 1055 1056int 1057SSL_is_dtls(const SSL *s) 1058{ 1059 return s->method->dtls; 1060} 1061LSSL_ALIAS(SSL_is_dtls); 1062 1063int 1064SSL_is_server(const SSL *s) 1065{ 1066 return s->server; 1067} 1068LSSL_ALIAS(SSL_is_server); 1069 1070static long 1071ssl_get_default_timeout() 1072{ 1073 /* 1074 * 2 hours, the 24 hours mentioned in the TLSv1 spec 1075 * is way too long for http, the cache would over fill. 1076 */ 1077 return (2 * 60 * 60); 1078} 1079 1080long 1081SSL_get_default_timeout(const SSL *s) 1082{ 1083 return (ssl_get_default_timeout()); 1084} 1085LSSL_ALIAS(SSL_get_default_timeout); 1086 1087int 1088SSL_read(SSL *s, void *buf, int num) 1089{ 1090 if (num < 0) { 1091 SSLerror(s, SSL_R_BAD_LENGTH); 1092 return -1; 1093 } 1094 1095 if (SSL_is_quic(s)) { 1096 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1097 return (-1); 1098 } 1099 1100 if (s->handshake_func == NULL) { 1101 SSLerror(s, SSL_R_UNINITIALIZED); 1102 return (-1); 1103 } 1104 1105 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 1106 s->rwstate = SSL_NOTHING; 1107 return (0); 1108 } 1109 return ssl3_read(s, buf, num); 1110} 1111LSSL_ALIAS(SSL_read); 1112 1113int 1114SSL_read_ex(SSL *s, void *buf, size_t num, size_t *bytes_read) 1115{ 1116 int ret; 1117 1118 /* We simply don't bother supporting enormous reads */ 1119 if (num > INT_MAX) { 1120 SSLerror(s, SSL_R_BAD_LENGTH); 1121 return 0; 1122 } 1123 1124 ret = SSL_read(s, buf, (int)num); 1125 if (ret < 0) 1126 ret = 0; 1127 *bytes_read = ret; 1128 1129 return ret > 0; 1130} 1131LSSL_ALIAS(SSL_read_ex); 1132 1133int 1134SSL_peek(SSL *s, void *buf, int num) 1135{ 1136 if (num < 0) { 1137 SSLerror(s, SSL_R_BAD_LENGTH); 1138 return -1; 1139 } 1140 1141 if (SSL_is_quic(s)) { 1142 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1143 return (-1); 1144 } 1145 1146 if (s->handshake_func == NULL) { 1147 SSLerror(s, SSL_R_UNINITIALIZED); 1148 return (-1); 1149 } 1150 1151 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 1152 return (0); 1153 } 1154 return ssl3_peek(s, buf, num); 1155} 1156LSSL_ALIAS(SSL_peek); 1157 1158int 1159SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *bytes_peeked) 1160{ 1161 int ret; 1162 1163 /* We simply don't bother supporting enormous peeks */ 1164 if (num > INT_MAX) { 1165 SSLerror(s, SSL_R_BAD_LENGTH); 1166 return 0; 1167 } 1168 1169 ret = SSL_peek(s, buf, (int)num); 1170 if (ret < 0) 1171 ret = 0; 1172 *bytes_peeked = ret; 1173 1174 return ret > 0; 1175} 1176LSSL_ALIAS(SSL_peek_ex); 1177 1178int 1179SSL_write(SSL *s, const void *buf, int num) 1180{ 1181 if (num < 0) { 1182 SSLerror(s, SSL_R_BAD_LENGTH); 1183 return -1; 1184 } 1185 1186 if (SSL_is_quic(s)) { 1187 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1188 return (-1); 1189 } 1190 1191 if (s->handshake_func == NULL) { 1192 SSLerror(s, SSL_R_UNINITIALIZED); 1193 return (-1); 1194 } 1195 1196 if (s->shutdown & SSL_SENT_SHUTDOWN) { 1197 s->rwstate = SSL_NOTHING; 1198 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 1199 return (-1); 1200 } 1201 return ssl3_write(s, buf, num); 1202} 1203LSSL_ALIAS(SSL_write); 1204 1205int 1206SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *bytes_written) 1207{ 1208 int ret; 1209 1210 /* We simply don't bother supporting enormous writes */ 1211 if (num > INT_MAX) { 1212 SSLerror(s, SSL_R_BAD_LENGTH); 1213 return 0; 1214 } 1215 1216 if (num == 0) { 1217 /* This API is special */ 1218 bytes_written = 0; 1219 return 1; 1220 } 1221 1222 ret = SSL_write(s, buf, (int)num); 1223 if (ret < 0) 1224 ret = 0; 1225 *bytes_written = ret; 1226 1227 return ret > 0; 1228} 1229LSSL_ALIAS(SSL_write_ex); 1230 1231uint32_t 1232SSL_CTX_get_max_early_data(const SSL_CTX *ctx) 1233{ 1234 return 0; 1235} 1236LSSL_ALIAS(SSL_CTX_get_max_early_data); 1237 1238int 1239SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) 1240{ 1241 return 1; 1242} 1243LSSL_ALIAS(SSL_CTX_set_max_early_data); 1244 1245uint32_t 1246SSL_get_max_early_data(const SSL *s) 1247{ 1248 return 0; 1249} 1250LSSL_ALIAS(SSL_get_max_early_data); 1251 1252int 1253SSL_set_max_early_data(SSL *s, uint32_t max_early_data) 1254{ 1255 return 1; 1256} 1257LSSL_ALIAS(SSL_set_max_early_data); 1258 1259int 1260SSL_get_early_data_status(const SSL *s) 1261{ 1262 return SSL_EARLY_DATA_REJECTED; 1263} 1264LSSL_ALIAS(SSL_get_early_data_status); 1265 1266int 1267SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) 1268{ 1269 *readbytes = 0; 1270 1271 if (!s->server) { 1272 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1273 return SSL_READ_EARLY_DATA_ERROR; 1274 } 1275 1276 return SSL_READ_EARLY_DATA_FINISH; 1277} 1278LSSL_ALIAS(SSL_read_early_data); 1279 1280int 1281SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) 1282{ 1283 *written = 0; 1284 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1285 return 0; 1286} 1287LSSL_ALIAS(SSL_write_early_data); 1288 1289int 1290SSL_shutdown(SSL *s) 1291{ 1292 /* 1293 * Note that this function behaves differently from what one might 1294 * expect. Return values are 0 for no success (yet), 1295 * 1 for success; but calling it once is usually not enough, 1296 * even if blocking I/O is used (see ssl3_shutdown). 1297 */ 1298 1299 if (s->handshake_func == NULL) { 1300 SSLerror(s, SSL_R_UNINITIALIZED); 1301 return (-1); 1302 } 1303 1304 if (s != NULL && !SSL_in_init(s)) 1305 return (s->method->ssl_shutdown(s)); 1306 1307 return (1); 1308} 1309LSSL_ALIAS(SSL_shutdown); 1310 1311int 1312SSL_renegotiate(SSL *s) 1313{ 1314 if (s->renegotiate == 0) 1315 s->renegotiate = 1; 1316 1317 s->new_session = 1; 1318 1319 return (s->method->ssl_renegotiate(s)); 1320} 1321LSSL_ALIAS(SSL_renegotiate); 1322 1323int 1324SSL_renegotiate_abbreviated(SSL *s) 1325{ 1326 if (s->renegotiate == 0) 1327 s->renegotiate = 1; 1328 1329 s->new_session = 0; 1330 1331 return (s->method->ssl_renegotiate(s)); 1332} 1333LSSL_ALIAS(SSL_renegotiate_abbreviated); 1334 1335int 1336SSL_renegotiate_pending(SSL *s) 1337{ 1338 /* 1339 * Becomes true when negotiation is requested; 1340 * false again once a handshake has finished. 1341 */ 1342 return (s->renegotiate != 0); 1343} 1344LSSL_ALIAS(SSL_renegotiate_pending); 1345 1346long 1347SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1348{ 1349 long l; 1350 1351 switch (cmd) { 1352 case SSL_CTRL_GET_READ_AHEAD: 1353 return (s->read_ahead); 1354 case SSL_CTRL_SET_READ_AHEAD: 1355 l = s->read_ahead; 1356 s->read_ahead = larg; 1357 return (l); 1358 1359 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1360 s->msg_callback_arg = parg; 1361 return (1); 1362 1363 case SSL_CTRL_OPTIONS: 1364 return (s->options|=larg); 1365 case SSL_CTRL_CLEAR_OPTIONS: 1366 return (s->options&=~larg); 1367 case SSL_CTRL_MODE: 1368 return (s->mode|=larg); 1369 case SSL_CTRL_CLEAR_MODE: 1370 return (s->mode &=~larg); 1371 case SSL_CTRL_GET_MAX_CERT_LIST: 1372 return (s->max_cert_list); 1373 case SSL_CTRL_SET_MAX_CERT_LIST: 1374 l = s->max_cert_list; 1375 s->max_cert_list = larg; 1376 return (l); 1377 case SSL_CTRL_SET_MTU: 1378#ifndef OPENSSL_NO_DTLS1 1379 if (larg < (long)dtls1_min_mtu()) 1380 return (0); 1381#endif 1382 if (SSL_is_dtls(s)) { 1383 s->d1->mtu = larg; 1384 return (larg); 1385 } 1386 return (0); 1387 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1388 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1389 return (0); 1390 s->max_send_fragment = larg; 1391 return (1); 1392 case SSL_CTRL_GET_RI_SUPPORT: 1393 if (s->s3) 1394 return (s->s3->send_connection_binding); 1395 else return (0); 1396 default: 1397 if (SSL_is_dtls(s)) 1398 return dtls1_ctrl(s, cmd, larg, parg); 1399 return ssl3_ctrl(s, cmd, larg, parg); 1400 } 1401} 1402LSSL_ALIAS(SSL_ctrl); 1403 1404long 1405SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1406{ 1407 switch (cmd) { 1408 case SSL_CTRL_SET_MSG_CALLBACK: 1409 s->msg_callback = (ssl_msg_callback_fn *)(fp); 1410 return (1); 1411 1412 default: 1413 return (ssl3_callback_ctrl(s, cmd, fp)); 1414 } 1415} 1416LSSL_ALIAS(SSL_callback_ctrl); 1417 1418struct lhash_st_SSL_SESSION * 1419SSL_CTX_sessions(SSL_CTX *ctx) 1420{ 1421 return (ctx->sessions); 1422} 1423LSSL_ALIAS(SSL_CTX_sessions); 1424 1425long 1426SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1427{ 1428 long l; 1429 1430 switch (cmd) { 1431 case SSL_CTRL_GET_READ_AHEAD: 1432 return (ctx->read_ahead); 1433 case SSL_CTRL_SET_READ_AHEAD: 1434 l = ctx->read_ahead; 1435 ctx->read_ahead = larg; 1436 return (l); 1437 1438 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1439 ctx->msg_callback_arg = parg; 1440 return (1); 1441 1442 case SSL_CTRL_GET_MAX_CERT_LIST: 1443 return (ctx->max_cert_list); 1444 case SSL_CTRL_SET_MAX_CERT_LIST: 1445 l = ctx->max_cert_list; 1446 ctx->max_cert_list = larg; 1447 return (l); 1448 1449 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1450 l = ctx->session_cache_size; 1451 ctx->session_cache_size = larg; 1452 return (l); 1453 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1454 return (ctx->session_cache_size); 1455 case SSL_CTRL_SET_SESS_CACHE_MODE: 1456 l = ctx->session_cache_mode; 1457 ctx->session_cache_mode = larg; 1458 return (l); 1459 case SSL_CTRL_GET_SESS_CACHE_MODE: 1460 return (ctx->session_cache_mode); 1461 1462 case SSL_CTRL_SESS_NUMBER: 1463 return (lh_SSL_SESSION_num_items(ctx->sessions)); 1464 case SSL_CTRL_SESS_CONNECT: 1465 return (ctx->stats.sess_connect); 1466 case SSL_CTRL_SESS_CONNECT_GOOD: 1467 return (ctx->stats.sess_connect_good); 1468 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1469 return (ctx->stats.sess_connect_renegotiate); 1470 case SSL_CTRL_SESS_ACCEPT: 1471 return (ctx->stats.sess_accept); 1472 case SSL_CTRL_SESS_ACCEPT_GOOD: 1473 return (ctx->stats.sess_accept_good); 1474 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1475 return (ctx->stats.sess_accept_renegotiate); 1476 case SSL_CTRL_SESS_HIT: 1477 return (ctx->stats.sess_hit); 1478 case SSL_CTRL_SESS_CB_HIT: 1479 return (ctx->stats.sess_cb_hit); 1480 case SSL_CTRL_SESS_MISSES: 1481 return (ctx->stats.sess_miss); 1482 case SSL_CTRL_SESS_TIMEOUTS: 1483 return (ctx->stats.sess_timeout); 1484 case SSL_CTRL_SESS_CACHE_FULL: 1485 return (ctx->stats.sess_cache_full); 1486 case SSL_CTRL_OPTIONS: 1487 return (ctx->options|=larg); 1488 case SSL_CTRL_CLEAR_OPTIONS: 1489 return (ctx->options&=~larg); 1490 case SSL_CTRL_MODE: 1491 return (ctx->mode|=larg); 1492 case SSL_CTRL_CLEAR_MODE: 1493 return (ctx->mode&=~larg); 1494 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1495 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1496 return (0); 1497 ctx->max_send_fragment = larg; 1498 return (1); 1499 default: 1500 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1501 } 1502} 1503LSSL_ALIAS(SSL_CTX_ctrl); 1504 1505long 1506SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1507{ 1508 switch (cmd) { 1509 case SSL_CTRL_SET_MSG_CALLBACK: 1510 ctx->msg_callback = (ssl_msg_callback_fn *)fp; 1511 return (1); 1512 1513 default: 1514 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1515 } 1516} 1517LSSL_ALIAS(SSL_CTX_callback_ctrl); 1518 1519int 1520ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1521{ 1522 long l; 1523 1524 l = a->id - b->id; 1525 if (l == 0L) 1526 return (0); 1527 else 1528 return ((l > 0) ? 1:-1); 1529} 1530 1531STACK_OF(SSL_CIPHER) * 1532SSL_get_ciphers(const SSL *s) 1533{ 1534 if (s == NULL) 1535 return (NULL); 1536 if (s->cipher_list != NULL) 1537 return (s->cipher_list); 1538 1539 return (s->ctx->cipher_list); 1540} 1541LSSL_ALIAS(SSL_get_ciphers); 1542 1543STACK_OF(SSL_CIPHER) * 1544SSL_get_client_ciphers(const SSL *s) 1545{ 1546 if (s == NULL || s->session == NULL || !s->server) 1547 return NULL; 1548 return s->session->ciphers; 1549} 1550LSSL_ALIAS(SSL_get_client_ciphers); 1551 1552STACK_OF(SSL_CIPHER) * 1553SSL_get1_supported_ciphers(SSL *s) 1554{ 1555 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers; 1556 SSL_CIPHER *cipher; 1557 uint16_t min_vers, max_vers; 1558 int i; 1559 1560 if (s == NULL) 1561 return NULL; 1562 if (!ssl_supported_tls_version_range(s, &min_vers, &max_vers)) 1563 return NULL; 1564 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1565 return NULL; 1566 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL) 1567 return NULL; 1568 1569 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1570 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL) 1571 goto err; 1572 if (!ssl_cipher_allowed_in_tls_version_range(cipher, min_vers, 1573 max_vers)) 1574 continue; 1575 if (!ssl_security_supported_cipher(s, cipher)) 1576 continue; 1577 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher)) 1578 goto err; 1579 } 1580 1581 if (sk_SSL_CIPHER_num(supported_ciphers) > 0) 1582 return supported_ciphers; 1583 1584 err: 1585 sk_SSL_CIPHER_free(supported_ciphers); 1586 return NULL; 1587} 1588LSSL_ALIAS(SSL_get1_supported_ciphers); 1589 1590/* See if we have any ECC cipher suites. */ 1591int 1592ssl_has_ecc_ciphers(SSL *s) 1593{ 1594 STACK_OF(SSL_CIPHER) *ciphers; 1595 unsigned long alg_k, alg_a; 1596 SSL_CIPHER *cipher; 1597 int i; 1598 1599 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1600 return 0; 1601 1602 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1603 cipher = sk_SSL_CIPHER_value(ciphers, i); 1604 1605 alg_k = cipher->algorithm_mkey; 1606 alg_a = cipher->algorithm_auth; 1607 1608 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1609 return 1; 1610 } 1611 1612 return 0; 1613} 1614 1615/* The old interface to get the same thing as SSL_get_ciphers(). */ 1616const char * 1617SSL_get_cipher_list(const SSL *s, int n) 1618{ 1619 STACK_OF(SSL_CIPHER) *ciphers; 1620 const SSL_CIPHER *cipher; 1621 1622 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1623 return (NULL); 1624 if ((cipher = sk_SSL_CIPHER_value(ciphers, n)) == NULL) 1625 return (NULL); 1626 1627 return (cipher->name); 1628} 1629LSSL_ALIAS(SSL_get_cipher_list); 1630 1631STACK_OF(SSL_CIPHER) * 1632SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1633{ 1634 if (ctx == NULL) 1635 return NULL; 1636 return ctx->cipher_list; 1637} 1638LSSL_ALIAS(SSL_CTX_get_ciphers); 1639 1640/* Specify the ciphers to be used by default by the SSL_CTX. */ 1641int 1642SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1643{ 1644 STACK_OF(SSL_CIPHER) *ciphers; 1645 1646 /* 1647 * ssl_create_cipher_list may return an empty stack if it was unable to 1648 * find a cipher matching the given rule string (for example if the 1649 * rule string specifies a cipher which has been disabled). This is not 1650 * an error as far as ssl_create_cipher_list is concerned, and hence 1651 * ctx->cipher_list has been updated. 1652 */ 1653 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1654 ctx->cipher_list_tls13, str, ctx->cert); 1655 if (ciphers == NULL) { 1656 return (0); 1657 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1658 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1659 return (0); 1660 } 1661 return (1); 1662} 1663LSSL_ALIAS(SSL_CTX_set_cipher_list); 1664 1665int 1666SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str) 1667{ 1668 if (!ssl_parse_ciphersuites(&ctx->cipher_list_tls13, str)) { 1669 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1670 return 0; 1671 } 1672 if (!ssl_merge_cipherlists(ctx->cipher_list, 1673 ctx->cipher_list_tls13, &ctx->cipher_list)) 1674 return 0; 1675 1676 return 1; 1677} 1678LSSL_ALIAS(SSL_CTX_set_ciphersuites); 1679 1680/* Specify the ciphers to be used by the SSL. */ 1681int 1682SSL_set_cipher_list(SSL *s, const char *str) 1683{ 1684 STACK_OF(SSL_CIPHER) *ciphers, *ciphers_tls13; 1685 1686 if ((ciphers_tls13 = s->cipher_list_tls13) == NULL) 1687 ciphers_tls13 = s->ctx->cipher_list_tls13; 1688 1689 /* See comment in SSL_CTX_set_cipher_list. */ 1690 ciphers = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1691 ciphers_tls13, str, s->cert); 1692 if (ciphers == NULL) { 1693 return (0); 1694 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1695 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1696 return (0); 1697 } 1698 return (1); 1699} 1700LSSL_ALIAS(SSL_set_cipher_list); 1701 1702int 1703SSL_set_ciphersuites(SSL *s, const char *str) 1704{ 1705 STACK_OF(SSL_CIPHER) *ciphers; 1706 1707 if ((ciphers = s->cipher_list) == NULL) 1708 ciphers = s->ctx->cipher_list; 1709 1710 if (!ssl_parse_ciphersuites(&s->cipher_list_tls13, str)) { 1711 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1712 return (0); 1713 } 1714 if (!ssl_merge_cipherlists(ciphers, s->cipher_list_tls13, 1715 &s->cipher_list)) 1716 return 0; 1717 1718 return 1; 1719} 1720LSSL_ALIAS(SSL_set_ciphersuites); 1721 1722char * 1723SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1724{ 1725 STACK_OF(SSL_CIPHER) *client_ciphers, *server_ciphers; 1726 const SSL_CIPHER *cipher; 1727 size_t curlen = 0; 1728 char *end; 1729 int i; 1730 1731 if (!s->server || s->session == NULL || len < 2) 1732 return NULL; 1733 1734 if ((client_ciphers = s->session->ciphers) == NULL) 1735 return NULL; 1736 if ((server_ciphers = SSL_get_ciphers(s)) == NULL) 1737 return NULL; 1738 if (sk_SSL_CIPHER_num(client_ciphers) == 0 || 1739 sk_SSL_CIPHER_num(server_ciphers) == 0) 1740 return NULL; 1741 1742 buf[0] = '\0'; 1743 for (i = 0; i < sk_SSL_CIPHER_num(client_ciphers); i++) { 1744 cipher = sk_SSL_CIPHER_value(client_ciphers, i); 1745 1746 if (sk_SSL_CIPHER_find(server_ciphers, cipher) < 0) 1747 continue; 1748 1749 end = buf + curlen; 1750 if (strlcat(buf, cipher->name, len) >= len || 1751 (curlen = strlcat(buf, ":", len)) >= len) { 1752 /* remove truncated cipher from list */ 1753 *end = '\0'; 1754 break; 1755 } 1756 } 1757 /* remove trailing colon */ 1758 if ((end = strrchr(buf, ':')) != NULL) 1759 *end = '\0'; 1760 return buf; 1761} 1762LSSL_ALIAS(SSL_get_shared_ciphers); 1763 1764/* 1765 * Return a servername extension value if provided in Client Hello, or NULL. 1766 * So far, only host_name types are defined (RFC 3546). 1767 */ 1768const char * 1769SSL_get_servername(const SSL *s, const int type) 1770{ 1771 if (type != TLSEXT_NAMETYPE_host_name) 1772 return (NULL); 1773 1774 return (s->session && !s->tlsext_hostname ? 1775 s->session->tlsext_hostname : 1776 s->tlsext_hostname); 1777} 1778LSSL_ALIAS(SSL_get_servername); 1779 1780int 1781SSL_get_servername_type(const SSL *s) 1782{ 1783 if (s->session && 1784 (!s->tlsext_hostname ? 1785 s->session->tlsext_hostname : s->tlsext_hostname)) 1786 return (TLSEXT_NAMETYPE_host_name); 1787 return (-1); 1788} 1789LSSL_ALIAS(SSL_get_servername_type); 1790 1791/* 1792 * SSL_select_next_proto implements standard protocol selection. It is 1793 * expected that this function is called from the callback set by 1794 * SSL_CTX_set_alpn_select_cb. 1795 * 1796 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1797 * strings. The length byte itself is not included in the length. A byte 1798 * string of length 0 is invalid. No byte string may be truncated. 1799 * 1800 * It returns either: 1801 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1802 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1803 */ 1804int 1805SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1806 const unsigned char *server, unsigned int server_len, 1807 const unsigned char *client, unsigned int client_len) 1808{ 1809 unsigned int i, j; 1810 const unsigned char *result; 1811 int status = OPENSSL_NPN_UNSUPPORTED; 1812 1813 /* 1814 * For each protocol in server preference order, 1815 * see if we support it. 1816 */ 1817 for (i = 0; i < server_len; ) { 1818 for (j = 0; j < client_len; ) { 1819 if (server[i] == client[j] && 1820 memcmp(&server[i + 1], 1821 &client[j + 1], server[i]) == 0) { 1822 /* We found a match */ 1823 result = &server[i]; 1824 status = OPENSSL_NPN_NEGOTIATED; 1825 goto found; 1826 } 1827 j += client[j]; 1828 j++; 1829 } 1830 i += server[i]; 1831 i++; 1832 } 1833 1834 /* There's no overlap between our protocols and the server's list. */ 1835 result = client; 1836 status = OPENSSL_NPN_NO_OVERLAP; 1837 1838 found: 1839 *out = (unsigned char *) result + 1; 1840 *outlen = result[0]; 1841 return (status); 1842} 1843LSSL_ALIAS(SSL_select_next_proto); 1844 1845/* SSL_get0_next_proto_negotiated is deprecated. */ 1846void 1847SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1848 unsigned int *len) 1849{ 1850 *data = NULL; 1851 *len = 0; 1852} 1853LSSL_ALIAS(SSL_get0_next_proto_negotiated); 1854 1855/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1856void 1857SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1858 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1859{ 1860} 1861LSSL_ALIAS(SSL_CTX_set_next_protos_advertised_cb); 1862 1863/* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1864void 1865SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1866 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1867 unsigned int inlen, void *arg), void *arg) 1868{ 1869} 1870LSSL_ALIAS(SSL_CTX_set_next_proto_select_cb); 1871 1872/* 1873 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1874 * protocols, which must be in wire-format (i.e. a series of non-empty, 1875 * 8-bit length-prefixed strings). Returns 0 on success. 1876 */ 1877int 1878SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1879 unsigned int protos_len) 1880{ 1881 CBS cbs; 1882 int failed = 1; 1883 1884 if (protos == NULL) 1885 protos_len = 0; 1886 1887 CBS_init(&cbs, protos, protos_len); 1888 1889 if (protos_len > 0) { 1890 if (!tlsext_alpn_check_format(&cbs)) 1891 goto err; 1892 } 1893 1894 if (!CBS_stow(&cbs, &ctx->alpn_client_proto_list, 1895 &ctx->alpn_client_proto_list_len)) 1896 goto err; 1897 1898 failed = 0; 1899 1900 err: 1901 /* NOTE: Return values are the reverse of what you expect. */ 1902 return failed; 1903} 1904LSSL_ALIAS(SSL_CTX_set_alpn_protos); 1905 1906/* 1907 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1908 * protocols, which must be in wire-format (i.e. a series of non-empty, 1909 * 8-bit length-prefixed strings). Returns 0 on success. 1910 */ 1911int 1912SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1913 unsigned int protos_len) 1914{ 1915 CBS cbs; 1916 int failed = 1; 1917 1918 if (protos == NULL) 1919 protos_len = 0; 1920 1921 CBS_init(&cbs, protos, protos_len); 1922 1923 if (protos_len > 0) { 1924 if (!tlsext_alpn_check_format(&cbs)) 1925 goto err; 1926 } 1927 1928 if (!CBS_stow(&cbs, &ssl->alpn_client_proto_list, 1929 &ssl->alpn_client_proto_list_len)) 1930 goto err; 1931 1932 failed = 0; 1933 1934 err: 1935 /* NOTE: Return values are the reverse of what you expect. */ 1936 return failed; 1937} 1938LSSL_ALIAS(SSL_set_alpn_protos); 1939 1940/* 1941 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1942 * ClientHello processing in order to select an ALPN protocol from the 1943 * client's list of offered protocols. 1944 */ 1945void 1946SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1947 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1948 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1949{ 1950 ctx->alpn_select_cb = cb; 1951 ctx->alpn_select_cb_arg = arg; 1952} 1953LSSL_ALIAS(SSL_CTX_set_alpn_select_cb); 1954 1955/* 1956 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1957 * it sets data to point to len bytes of protocol name (not including the 1958 * leading length-prefix byte). If the server didn't respond with* a negotiated 1959 * protocol then len will be zero. 1960 */ 1961void 1962SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1963 unsigned int *len) 1964{ 1965 *data = ssl->s3->alpn_selected; 1966 *len = ssl->s3->alpn_selected_len; 1967} 1968LSSL_ALIAS(SSL_get0_alpn_selected); 1969 1970void 1971SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb) 1972{ 1973 return; 1974} 1975LSSL_ALIAS(SSL_set_psk_use_session_callback); 1976 1977int 1978SSL_export_keying_material(SSL *s, unsigned char *out, size_t out_len, 1979 const char *label, size_t label_len, const unsigned char *context, 1980 size_t context_len, int use_context) 1981{ 1982 if (s->tls13 != NULL && s->version == TLS1_3_VERSION) { 1983 if (!use_context) { 1984 context = NULL; 1985 context_len = 0; 1986 } 1987 return tls13_exporter(s->tls13, label, label_len, context, 1988 context_len, out, out_len); 1989 } 1990 1991 return tls12_exporter(s, label, label_len, context, context_len, 1992 use_context, out, out_len); 1993} 1994LSSL_ALIAS(SSL_export_keying_material); 1995 1996static unsigned long 1997ssl_session_hash(const SSL_SESSION *a) 1998{ 1999 unsigned long l; 2000 2001 l = (unsigned long) 2002 ((unsigned int) a->session_id[0] )| 2003 ((unsigned int) a->session_id[1]<< 8L)| 2004 ((unsigned long)a->session_id[2]<<16L)| 2005 ((unsigned long)a->session_id[3]<<24L); 2006 return (l); 2007} 2008 2009/* 2010 * NB: If this function (or indeed the hash function which uses a sort of 2011 * coarser function than this one) is changed, ensure 2012 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 2013 * able to construct an SSL_SESSION that will collide with any existing session 2014 * with a matching session ID. 2015 */ 2016static int 2017ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 2018{ 2019 if (a->ssl_version != b->ssl_version) 2020 return (1); 2021 if (a->session_id_length != b->session_id_length) 2022 return (1); 2023 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 2024 return (1); 2025 return (0); 2026} 2027 2028/* 2029 * These wrapper functions should remain rather than redeclaring 2030 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 2031 * variable. The reason is that the functions aren't static, they're exposed via 2032 * ssl.h. 2033 */ 2034static unsigned long 2035ssl_session_LHASH_HASH(const void *arg) 2036{ 2037 const SSL_SESSION *a = arg; 2038 2039 return ssl_session_hash(a); 2040} 2041 2042static int 2043ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 2044{ 2045 const SSL_SESSION *a = arg1; 2046 const SSL_SESSION *b = arg2; 2047 2048 return ssl_session_cmp(a, b); 2049} 2050 2051SSL_CTX * 2052SSL_CTX_new(const SSL_METHOD *meth) 2053{ 2054 SSL_CTX *ret; 2055 2056 if (!OPENSSL_init_ssl(0, NULL)) { 2057 SSLerrorx(SSL_R_LIBRARY_BUG); 2058 return (NULL); 2059 } 2060 2061 if (meth == NULL) { 2062 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 2063 return (NULL); 2064 } 2065 2066 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 2067 SSLerrorx(ERR_R_MALLOC_FAILURE); 2068 return (NULL); 2069 } 2070 2071 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 2072 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 2073 goto err; 2074 } 2075 2076 ret->method = meth; 2077 ret->min_tls_version = meth->min_tls_version; 2078 ret->max_tls_version = meth->max_tls_version; 2079 ret->min_proto_version = 0; 2080 ret->max_proto_version = 0; 2081 ret->mode = SSL_MODE_AUTO_RETRY; 2082 2083 ret->cert_store = NULL; 2084 ret->session_cache_mode = SSL_SESS_CACHE_SERVER; 2085 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 2086 ret->session_cache_head = NULL; 2087 ret->session_cache_tail = NULL; 2088 2089 /* We take the system default */ 2090 ret->session_timeout = ssl_get_default_timeout(); 2091 2092 ret->new_session_cb = NULL; 2093 ret->remove_session_cb = NULL; 2094 ret->get_session_cb = NULL; 2095 ret->generate_session_id = NULL; 2096 2097 memset((char *)&ret->stats, 0, sizeof(ret->stats)); 2098 2099 ret->references = 1; 2100 ret->quiet_shutdown = 0; 2101 2102 ret->info_callback = NULL; 2103 2104 ret->app_verify_callback = NULL; 2105 ret->app_verify_arg = NULL; 2106 2107 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 2108 ret->read_ahead = 0; 2109 ret->msg_callback = NULL; 2110 ret->msg_callback_arg = NULL; 2111 ret->verify_mode = SSL_VERIFY_NONE; 2112 ret->sid_ctx_length = 0; 2113 ret->default_verify_callback = NULL; 2114 2115 if ((ret->cert = ssl_cert_new()) == NULL) 2116 goto err; 2117 2118 ret->default_passwd_callback = NULL; 2119 ret->default_passwd_callback_userdata = NULL; 2120 ret->client_cert_cb = NULL; 2121 ret->app_gen_cookie_cb = NULL; 2122 ret->app_verify_cookie_cb = NULL; 2123 2124 ret->sessions = lh_SSL_SESSION_new(); 2125 if (ret->sessions == NULL) 2126 goto err; 2127 ret->cert_store = X509_STORE_new(); 2128 if (ret->cert_store == NULL) 2129 goto err; 2130 2131 ssl_create_cipher_list(ret->method, &ret->cipher_list, 2132 NULL, SSL_DEFAULT_CIPHER_LIST, ret->cert); 2133 if (ret->cipher_list == NULL || 2134 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 2135 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 2136 goto err2; 2137 } 2138 2139 ret->param = X509_VERIFY_PARAM_new(); 2140 if (!ret->param) 2141 goto err; 2142 2143 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) 2144 goto err; 2145 2146 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 2147 2148 ret->extra_certs = NULL; 2149 2150 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 2151 2152 ret->tlsext_servername_callback = 0; 2153 ret->tlsext_servername_arg = NULL; 2154 2155 /* Setup RFC4507 ticket keys */ 2156 arc4random_buf(ret->tlsext_tick_key_name, 16); 2157 arc4random_buf(ret->tlsext_tick_hmac_key, 16); 2158 arc4random_buf(ret->tlsext_tick_aes_key, 16); 2159 2160 ret->tlsext_status_cb = 0; 2161 ret->tlsext_status_arg = NULL; 2162 2163 /* 2164 * Default is to connect to non-RI servers. When RI is more widely 2165 * deployed might change this. 2166 */ 2167 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; 2168 2169 return (ret); 2170 err: 2171 SSLerrorx(ERR_R_MALLOC_FAILURE); 2172 err2: 2173 SSL_CTX_free(ret); 2174 return (NULL); 2175} 2176LSSL_ALIAS(SSL_CTX_new); 2177 2178void 2179SSL_CTX_free(SSL_CTX *ctx) 2180{ 2181 int i; 2182 2183 if (ctx == NULL) 2184 return; 2185 2186 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 2187 if (i > 0) 2188 return; 2189 2190 X509_VERIFY_PARAM_free(ctx->param); 2191 2192 /* 2193 * Free internal session cache. However: the remove_cb() may reference 2194 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 2195 * after the sessions were flushed. 2196 * As the ex_data handling routines might also touch the session cache, 2197 * the most secure solution seems to be: empty (flush) the cache, then 2198 * free ex_data, then finally free the cache. 2199 * (See ticket [openssl.org #212].) 2200 */ 2201 if (ctx->sessions != NULL) 2202 SSL_CTX_flush_sessions(ctx, 0); 2203 2204 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->ex_data); 2205 2206 lh_SSL_SESSION_free(ctx->sessions); 2207 2208 X509_STORE_free(ctx->cert_store); 2209 sk_SSL_CIPHER_free(ctx->cipher_list); 2210 sk_SSL_CIPHER_free(ctx->cipher_list_tls13); 2211 ssl_cert_free(ctx->cert); 2212 sk_X509_NAME_pop_free(ctx->client_CA, X509_NAME_free); 2213 sk_X509_pop_free(ctx->extra_certs, X509_free); 2214 2215#ifndef OPENSSL_NO_SRTP 2216 if (ctx->srtp_profiles) 2217 sk_SRTP_PROTECTION_PROFILE_free(ctx->srtp_profiles); 2218#endif 2219 2220 free(ctx->tlsext_ecpointformatlist); 2221 free(ctx->tlsext_supportedgroups); 2222 2223 free(ctx->alpn_client_proto_list); 2224 2225 free(ctx); 2226} 2227LSSL_ALIAS(SSL_CTX_free); 2228 2229int 2230SSL_CTX_up_ref(SSL_CTX *ctx) 2231{ 2232 int refs = CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 2233 return ((refs > 1) ? 1 : 0); 2234} 2235LSSL_ALIAS(SSL_CTX_up_ref); 2236 2237pem_password_cb * 2238SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 2239{ 2240 return (ctx->default_passwd_callback); 2241} 2242LSSL_ALIAS(SSL_CTX_get_default_passwd_cb); 2243 2244void 2245SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 2246{ 2247 ctx->default_passwd_callback = cb; 2248} 2249LSSL_ALIAS(SSL_CTX_set_default_passwd_cb); 2250 2251void * 2252SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 2253{ 2254 return ctx->default_passwd_callback_userdata; 2255} 2256LSSL_ALIAS(SSL_CTX_get_default_passwd_cb_userdata); 2257 2258void 2259SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 2260{ 2261 ctx->default_passwd_callback_userdata = u; 2262} 2263LSSL_ALIAS(SSL_CTX_set_default_passwd_cb_userdata); 2264 2265void 2266SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, 2267 int (*cb)(X509_STORE_CTX *, void *), void *arg) 2268{ 2269 ctx->app_verify_callback = cb; 2270 ctx->app_verify_arg = arg; 2271} 2272LSSL_ALIAS(SSL_CTX_set_cert_verify_callback); 2273 2274void 2275SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 2276{ 2277 ctx->verify_mode = mode; 2278 ctx->default_verify_callback = cb; 2279} 2280LSSL_ALIAS(SSL_CTX_set_verify); 2281 2282void 2283SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 2284{ 2285 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 2286} 2287LSSL_ALIAS(SSL_CTX_set_verify_depth); 2288 2289void 2290ssl_set_cert_masks(SSL_CERT *c, const SSL_CIPHER *cipher) 2291{ 2292 unsigned long mask_a, mask_k; 2293 SSL_CERT_PKEY *cpk; 2294 2295 if (c == NULL) 2296 return; 2297 2298 mask_a = SSL_aNULL | SSL_aTLS1_3; 2299 mask_k = SSL_kECDHE | SSL_kTLS1_3; 2300 2301 if (c->dhe_params != NULL || c->dhe_params_cb != NULL || 2302 c->dhe_params_auto != 0) 2303 mask_k |= SSL_kDHE; 2304 2305 cpk = &(c->pkeys[SSL_PKEY_ECC]); 2306 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2307 /* Key usage, if present, must allow signing. */ 2308 if (X509_get_key_usage(cpk->x509) & X509v3_KU_DIGITAL_SIGNATURE) 2309 mask_a |= SSL_aECDSA; 2310 } 2311 2312 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 2313 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2314 mask_k |= SSL_kGOST; 2315 mask_a |= SSL_aGOST01; 2316 } 2317 2318 cpk = &(c->pkeys[SSL_PKEY_RSA]); 2319 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2320 mask_a |= SSL_aRSA; 2321 mask_k |= SSL_kRSA; 2322 } 2323 2324 c->mask_k = mask_k; 2325 c->mask_a = mask_a; 2326 c->valid = 1; 2327} 2328 2329/* See if this handshake is using an ECC cipher suite. */ 2330int 2331ssl_using_ecc_cipher(SSL *s) 2332{ 2333 unsigned long alg_a, alg_k; 2334 2335 alg_a = s->s3->hs.cipher->algorithm_auth; 2336 alg_k = s->s3->hs.cipher->algorithm_mkey; 2337 2338 return s->session->tlsext_ecpointformatlist != NULL && 2339 s->session->tlsext_ecpointformatlist_length > 0 && 2340 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 2341} 2342 2343int 2344ssl_check_srvr_ecc_cert_and_alg(SSL *s, X509 *x) 2345{ 2346 const SSL_CIPHER *cs = s->s3->hs.cipher; 2347 unsigned long alg_a; 2348 2349 alg_a = cs->algorithm_auth; 2350 2351 if (alg_a & SSL_aECDSA) { 2352 /* Key usage, if present, must allow signing. */ 2353 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { 2354 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2355 return (0); 2356 } 2357 } 2358 2359 return (1); 2360} 2361 2362SSL_CERT_PKEY * 2363ssl_get_server_send_pkey(const SSL *s) 2364{ 2365 unsigned long alg_a; 2366 SSL_CERT *c; 2367 int i; 2368 2369 c = s->cert; 2370 ssl_set_cert_masks(c, s->s3->hs.cipher); 2371 2372 alg_a = s->s3->hs.cipher->algorithm_auth; 2373 2374 if (alg_a & SSL_aECDSA) { 2375 i = SSL_PKEY_ECC; 2376 } else if (alg_a & SSL_aRSA) { 2377 i = SSL_PKEY_RSA; 2378 } else if (alg_a & SSL_aGOST01) { 2379 i = SSL_PKEY_GOST01; 2380 } else { /* if (alg_a & SSL_aNULL) */ 2381 SSLerror(s, ERR_R_INTERNAL_ERROR); 2382 return (NULL); 2383 } 2384 2385 return (c->pkeys + i); 2386} 2387 2388EVP_PKEY * 2389ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2390 const struct ssl_sigalg **sap) 2391{ 2392 const struct ssl_sigalg *sigalg = NULL; 2393 EVP_PKEY *pkey = NULL; 2394 unsigned long alg_a; 2395 SSL_CERT *c; 2396 int idx = -1; 2397 2398 alg_a = cipher->algorithm_auth; 2399 c = s->cert; 2400 2401 if (alg_a & SSL_aRSA) { 2402 idx = SSL_PKEY_RSA; 2403 } else if ((alg_a & SSL_aECDSA) && 2404 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2405 idx = SSL_PKEY_ECC; 2406 if (idx == -1) { 2407 SSLerror(s, ERR_R_INTERNAL_ERROR); 2408 return (NULL); 2409 } 2410 2411 pkey = c->pkeys[idx].privatekey; 2412 if ((sigalg = ssl_sigalg_select(s, pkey)) == NULL) { 2413 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2414 return (NULL); 2415 } 2416 *pmd = sigalg->md(); 2417 *sap = sigalg; 2418 2419 return (pkey); 2420} 2421 2422size_t 2423ssl_dhe_params_auto_key_bits(SSL *s) 2424{ 2425 SSL_CERT_PKEY *cpk; 2426 int key_bits; 2427 2428 if (s->cert->dhe_params_auto == 2) { 2429 key_bits = 1024; 2430 } else if (s->s3->hs.cipher->algorithm_auth & SSL_aNULL) { 2431 key_bits = 1024; 2432 if (s->s3->hs.cipher->strength_bits == 256) 2433 key_bits = 3072; 2434 } else { 2435 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2436 return 0; 2437 if (cpk->privatekey == NULL || 2438 EVP_PKEY_get0_RSA(cpk->privatekey) == NULL) 2439 return 0; 2440 if ((key_bits = EVP_PKEY_bits(cpk->privatekey)) <= 0) 2441 return 0; 2442 } 2443 2444 return key_bits; 2445} 2446 2447static int 2448ssl_should_update_external_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 not already cached, cache it */ 2459 if (!s->hit) 2460 return 1; 2461 2462 /* If it's TLS 1.3, do it to match OpenSSL */ 2463 if (s->s3->hs.negotiated_tls_version >= TLS1_3_VERSION) 2464 return 1; 2465 2466 return 0; 2467} 2468 2469static int 2470ssl_should_update_internal_cache(SSL *s, int mode) 2471{ 2472 int cache_mode; 2473 2474 cache_mode = s->session_ctx->session_cache_mode; 2475 2476 /* Don't cache if mode says not to */ 2477 if ((cache_mode & mode) == 0) 2478 return 0; 2479 2480 /* If it is already cached, don't cache it again */ 2481 if (s->hit) 2482 return 0; 2483 2484 if ((cache_mode & SSL_SESS_CACHE_NO_INTERNAL_STORE) != 0) 2485 return 0; 2486 2487 /* If we are lesser than TLS 1.3, Cache it. */ 2488 if (s->s3->hs.negotiated_tls_version < TLS1_3_VERSION) 2489 return 1; 2490 2491 /* Below this we consider TLS 1.3 or later */ 2492 2493 /* If it's not a server, add it? OpenSSL does this. */ 2494 if (!s->server) 2495 return 1; 2496 2497 /* XXX if we support early data / PSK need to add */ 2498 2499 /* 2500 * If we have the remove session callback, we will want 2501 * to know about this even if it's a stateless ticket 2502 * from 1.3 so we can know when it is removed. 2503 */ 2504 if (s->session_ctx->remove_session_cb != NULL) 2505 return 1; 2506 2507 /* If we have set OP_NO_TICKET, cache it. */ 2508 if ((s->options & SSL_OP_NO_TICKET) != 0) 2509 return 1; 2510 2511 /* Otherwise do not cache */ 2512 return 0; 2513} 2514 2515void 2516ssl_update_cache(SSL *s, int mode) 2517{ 2518 int cache_mode, do_callback; 2519 2520 if (s->session->session_id_length == 0) 2521 return; 2522 2523 cache_mode = s->session_ctx->session_cache_mode; 2524 do_callback = ssl_should_update_external_cache(s, mode); 2525 2526 if (ssl_should_update_internal_cache(s, mode)) { 2527 /* 2528 * XXX should we fail if the add to the internal cache 2529 * fails? OpenSSL doesn't care.. 2530 */ 2531 (void) SSL_CTX_add_session(s->session_ctx, s->session); 2532 } 2533 2534 /* 2535 * Update the "external cache" by calling the new session 2536 * callback if present, even with TLS 1.3 without early data 2537 * "because some application just want to know about the 2538 * creation of a session and aren't doing a full cache". 2539 * Apparently, if they are doing a full cache, they'll have 2540 * some fun, but we endeavour to give application writers the 2541 * same glorious experience they expect from OpenSSL which 2542 * does it this way. 2543 */ 2544 if (do_callback && s->session_ctx->new_session_cb != NULL) { 2545 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2546 if (!s->session_ctx->new_session_cb(s, s->session)) 2547 SSL_SESSION_free(s->session); 2548 } 2549 2550 /* Auto flush every 255 connections. */ 2551 if (!(cache_mode & SSL_SESS_CACHE_NO_AUTO_CLEAR) && 2552 (cache_mode & mode) != 0) { 2553 int connections; 2554 if (mode & SSL_SESS_CACHE_CLIENT) 2555 connections = s->session_ctx->stats.sess_connect_good; 2556 else 2557 connections = s->session_ctx->stats.sess_accept_good; 2558 if ((connections & 0xff) == 0xff) 2559 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2560 } 2561} 2562 2563const SSL_METHOD * 2564SSL_get_ssl_method(SSL *s) 2565{ 2566 return (s->method); 2567} 2568LSSL_ALIAS(SSL_get_ssl_method); 2569 2570int 2571SSL_set_ssl_method(SSL *s, const SSL_METHOD *method) 2572{ 2573 int (*handshake_func)(SSL *) = NULL; 2574 int ret = 1; 2575 2576 if (s->method == method) 2577 return (ret); 2578 2579 if (s->handshake_func == s->method->ssl_connect) 2580 handshake_func = method->ssl_connect; 2581 else if (s->handshake_func == s->method->ssl_accept) 2582 handshake_func = method->ssl_accept; 2583 2584 if (s->method->version == method->version) { 2585 s->method = method; 2586 } else { 2587 s->method->ssl_free(s); 2588 s->method = method; 2589 ret = s->method->ssl_new(s); 2590 } 2591 s->handshake_func = handshake_func; 2592 2593 return (ret); 2594} 2595LSSL_ALIAS(SSL_set_ssl_method); 2596 2597int 2598SSL_get_error(const SSL *s, int i) 2599{ 2600 unsigned long l; 2601 int reason; 2602 BIO *bio; 2603 2604 if (i > 0) 2605 return (SSL_ERROR_NONE); 2606 2607 /* 2608 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2609 * etc, where we do encode the error. 2610 */ 2611 if ((l = ERR_peek_error()) != 0) { 2612 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2613 return (SSL_ERROR_SYSCALL); 2614 else 2615 return (SSL_ERROR_SSL); 2616 } 2617 2618 if (SSL_want_read(s)) { 2619 bio = SSL_get_rbio(s); 2620 if (BIO_should_read(bio)) { 2621 return (SSL_ERROR_WANT_READ); 2622 } else if (BIO_should_write(bio)) { 2623 /* 2624 * This one doesn't make too much sense... We never 2625 * try to write to the rbio, and an application 2626 * program where rbio and wbio are separate couldn't 2627 * even know what it should wait for. However if we 2628 * ever set s->rwstate incorrectly (so that we have 2629 * SSL_want_read(s) instead of SSL_want_write(s)) 2630 * and rbio and wbio *are* the same, this test works 2631 * around that bug; so it might be safer to keep it. 2632 */ 2633 return (SSL_ERROR_WANT_WRITE); 2634 } else if (BIO_should_io_special(bio)) { 2635 reason = BIO_get_retry_reason(bio); 2636 if (reason == BIO_RR_CONNECT) 2637 return (SSL_ERROR_WANT_CONNECT); 2638 else if (reason == BIO_RR_ACCEPT) 2639 return (SSL_ERROR_WANT_ACCEPT); 2640 else 2641 return (SSL_ERROR_SYSCALL); /* unknown */ 2642 } 2643 } 2644 2645 if (SSL_want_write(s)) { 2646 bio = SSL_get_wbio(s); 2647 if (BIO_should_write(bio)) { 2648 return (SSL_ERROR_WANT_WRITE); 2649 } else if (BIO_should_read(bio)) { 2650 /* 2651 * See above (SSL_want_read(s) with 2652 * BIO_should_write(bio)) 2653 */ 2654 return (SSL_ERROR_WANT_READ); 2655 } else if (BIO_should_io_special(bio)) { 2656 reason = BIO_get_retry_reason(bio); 2657 if (reason == BIO_RR_CONNECT) 2658 return (SSL_ERROR_WANT_CONNECT); 2659 else if (reason == BIO_RR_ACCEPT) 2660 return (SSL_ERROR_WANT_ACCEPT); 2661 else 2662 return (SSL_ERROR_SYSCALL); 2663 } 2664 } 2665 2666 if (SSL_want_x509_lookup(s)) 2667 return (SSL_ERROR_WANT_X509_LOOKUP); 2668 2669 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2670 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2671 return (SSL_ERROR_ZERO_RETURN); 2672 2673 return (SSL_ERROR_SYSCALL); 2674} 2675LSSL_ALIAS(SSL_get_error); 2676 2677int 2678SSL_CTX_set_quic_method(SSL_CTX *ctx, const SSL_QUIC_METHOD *quic_method) 2679{ 2680 if (ctx->method->dtls) 2681 return 0; 2682 2683 ctx->quic_method = quic_method; 2684 2685 return 1; 2686} 2687LSSL_ALIAS(SSL_CTX_set_quic_method); 2688 2689int 2690SSL_set_quic_method(SSL *ssl, const SSL_QUIC_METHOD *quic_method) 2691{ 2692 if (ssl->method->dtls) 2693 return 0; 2694 2695 ssl->quic_method = quic_method; 2696 2697 return 1; 2698} 2699LSSL_ALIAS(SSL_set_quic_method); 2700 2701size_t 2702SSL_quic_max_handshake_flight_len(const SSL *ssl, 2703 enum ssl_encryption_level_t level) 2704{ 2705 size_t flight_len; 2706 2707 /* Limit flights to 16K when there are no large certificate messages. */ 2708 flight_len = 16384; 2709 2710 switch (level) { 2711 case ssl_encryption_initial: 2712 return flight_len; 2713 2714 case ssl_encryption_early_data: 2715 /* QUIC does not send EndOfEarlyData. */ 2716 return 0; 2717 2718 case ssl_encryption_handshake: 2719 if (ssl->server) { 2720 /* 2721 * Servers may receive Certificate message if configured 2722 * to request client certificates. 2723 */ 2724 if ((SSL_get_verify_mode(ssl) & SSL_VERIFY_PEER) != 0 && 2725 ssl->max_cert_list > flight_len) 2726 flight_len = ssl->max_cert_list; 2727 } else { 2728 /* 2729 * Clients may receive both Certificate message and a 2730 * CertificateRequest message. 2731 */ 2732 if (ssl->max_cert_list * 2 > flight_len) 2733 flight_len = ssl->max_cert_list * 2; 2734 } 2735 return flight_len; 2736 case ssl_encryption_application: 2737 /* 2738 * Note there is not actually a bound on the number of 2739 * NewSessionTickets one may send in a row. This level may need 2740 * more involved flow control. 2741 */ 2742 return flight_len; 2743 } 2744 2745 return 0; 2746} 2747LSSL_ALIAS(SSL_quic_max_handshake_flight_len); 2748 2749enum ssl_encryption_level_t 2750SSL_quic_read_level(const SSL *ssl) 2751{ 2752 return ssl->s3->hs.tls13.quic_read_level; 2753} 2754LSSL_ALIAS(SSL_quic_read_level); 2755 2756enum ssl_encryption_level_t 2757SSL_quic_write_level(const SSL *ssl) 2758{ 2759 return ssl->s3->hs.tls13.quic_write_level; 2760} 2761LSSL_ALIAS(SSL_quic_write_level); 2762 2763int 2764SSL_provide_quic_data(SSL *ssl, enum ssl_encryption_level_t level, 2765 const uint8_t *data, size_t len) 2766{ 2767 if (!SSL_is_quic(ssl)) { 2768 SSLerror(ssl, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2769 return 0; 2770 } 2771 2772 if (level != SSL_quic_read_level(ssl)) { 2773 SSLerror(ssl, SSL_R_WRONG_ENCRYPTION_LEVEL_RECEIVED); 2774 return 0; 2775 } 2776 2777 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) { 2778 ssl->s3->hs.tls13.quic_read_buffer = tls_buffer_new(0); 2779 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) { 2780 SSLerror(ssl, ERR_R_MALLOC_FAILURE); 2781 return 0; 2782 } 2783 } 2784 2785 /* XXX - note that this does not currently downsize. */ 2786 tls_buffer_set_capacity_limit(ssl->s3->hs.tls13.quic_read_buffer, 2787 SSL_quic_max_handshake_flight_len(ssl, level)); 2788 2789 /* 2790 * XXX - an append that fails due to exceeding capacity should set 2791 * SSL_R_EXCESSIVE_MESSAGE_SIZE. 2792 */ 2793 return tls_buffer_append(ssl->s3->hs.tls13.quic_read_buffer, data, len); 2794} 2795LSSL_ALIAS(SSL_provide_quic_data); 2796 2797int 2798SSL_process_quic_post_handshake(SSL *ssl) 2799{ 2800 /* XXX - this needs to run PHH received. */ 2801 return 1; 2802} 2803LSSL_ALIAS(SSL_process_quic_post_handshake); 2804 2805int 2806SSL_do_handshake(SSL *s) 2807{ 2808 if (s->handshake_func == NULL) { 2809 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2810 return (-1); 2811 } 2812 2813 s->method->ssl_renegotiate_check(s); 2814 2815 if (!SSL_in_init(s) && !SSL_in_before(s)) 2816 return 1; 2817 2818 return s->handshake_func(s); 2819} 2820LSSL_ALIAS(SSL_do_handshake); 2821 2822/* 2823 * For the next 2 functions, SSL_clear() sets shutdown and so 2824 * one of these calls will reset it 2825 */ 2826void 2827SSL_set_accept_state(SSL *s) 2828{ 2829 s->server = 1; 2830 s->shutdown = 0; 2831 s->s3->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2832 s->handshake_func = s->method->ssl_accept; 2833 ssl_clear_cipher_state(s); 2834} 2835LSSL_ALIAS(SSL_set_accept_state); 2836 2837void 2838SSL_set_connect_state(SSL *s) 2839{ 2840 s->server = 0; 2841 s->shutdown = 0; 2842 s->s3->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2843 s->handshake_func = s->method->ssl_connect; 2844 ssl_clear_cipher_state(s); 2845} 2846LSSL_ALIAS(SSL_set_connect_state); 2847 2848int 2849ssl_undefined_function(SSL *s) 2850{ 2851 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2852 return (0); 2853} 2854 2855int 2856ssl_undefined_void_function(void) 2857{ 2858 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2859 return (0); 2860} 2861 2862int 2863ssl_undefined_const_function(const SSL *s) 2864{ 2865 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2866 return (0); 2867} 2868 2869const char * 2870ssl_version_string(int ver) 2871{ 2872 switch (ver) { 2873 case TLS1_VERSION: 2874 return (SSL_TXT_TLSV1); 2875 case TLS1_1_VERSION: 2876 return (SSL_TXT_TLSV1_1); 2877 case TLS1_2_VERSION: 2878 return (SSL_TXT_TLSV1_2); 2879 case TLS1_3_VERSION: 2880 return (SSL_TXT_TLSV1_3); 2881 case DTLS1_VERSION: 2882 return (SSL_TXT_DTLS1); 2883 case DTLS1_2_VERSION: 2884 return (SSL_TXT_DTLS1_2); 2885 default: 2886 return ("unknown"); 2887 } 2888} 2889 2890const char * 2891SSL_get_version(const SSL *s) 2892{ 2893 return ssl_version_string(s->version); 2894} 2895LSSL_ALIAS(SSL_get_version); 2896 2897SSL * 2898SSL_dup(SSL *s) 2899{ 2900 STACK_OF(X509_NAME) *sk; 2901 X509_NAME *xn; 2902 SSL *ret; 2903 int i; 2904 2905 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2906 goto err; 2907 2908 ret->version = s->version; 2909 ret->method = s->method; 2910 2911 if (s->session != NULL) { 2912 if (!SSL_copy_session_id(ret, s)) 2913 goto err; 2914 } else { 2915 /* 2916 * No session has been established yet, so we have to expect 2917 * that s->cert or ret->cert will be changed later -- 2918 * they should not both point to the same object, 2919 * and thus we can't use SSL_copy_session_id. 2920 */ 2921 2922 ret->method->ssl_free(ret); 2923 ret->method = s->method; 2924 ret->method->ssl_new(ret); 2925 2926 ssl_cert_free(ret->cert); 2927 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2928 goto err; 2929 2930 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2931 s->sid_ctx_length)) 2932 goto err; 2933 } 2934 2935 ret->options = s->options; 2936 ret->mode = s->mode; 2937 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2938 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2939 ret->msg_callback = s->msg_callback; 2940 ret->msg_callback_arg = s->msg_callback_arg; 2941 SSL_set_verify(ret, SSL_get_verify_mode(s), 2942 SSL_get_verify_callback(s)); 2943 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2944 ret->generate_session_id = s->generate_session_id; 2945 2946 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2947 2948 ret->debug = s->debug; 2949 2950 /* copy app data, a little dangerous perhaps */ 2951 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2952 &ret->ex_data, &s->ex_data)) 2953 goto err; 2954 2955 /* setup rbio, and wbio */ 2956 if (s->rbio != NULL) { 2957 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2958 goto err; 2959 } 2960 if (s->wbio != NULL) { 2961 if (s->wbio != s->rbio) { 2962 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2963 goto err; 2964 } else 2965 ret->wbio = ret->rbio; 2966 } 2967 ret->rwstate = s->rwstate; 2968 ret->in_handshake = s->in_handshake; 2969 ret->handshake_func = s->handshake_func; 2970 ret->server = s->server; 2971 ret->renegotiate = s->renegotiate; 2972 ret->new_session = s->new_session; 2973 ret->quiet_shutdown = s->quiet_shutdown; 2974 ret->shutdown = s->shutdown; 2975 /* SSL_dup does not really work at any state, though */ 2976 ret->s3->hs.state = s->s3->hs.state; 2977 ret->rstate = s->rstate; 2978 2979 /* 2980 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2981 * ret->init_off 2982 */ 2983 ret->init_num = 0; 2984 2985 ret->hit = s->hit; 2986 2987 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2988 2989 if (s->cipher_list != NULL) { 2990 if ((ret->cipher_list = 2991 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2992 goto err; 2993 } 2994 if (s->cipher_list_tls13 != NULL) { 2995 if ((ret->cipher_list_tls13 = 2996 sk_SSL_CIPHER_dup(s->cipher_list_tls13)) == NULL) 2997 goto err; 2998 } 2999 3000 /* Dup the client_CA list */ 3001 if (s->client_CA != NULL) { 3002 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 3003 ret->client_CA = sk; 3004 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 3005 xn = sk_X509_NAME_value(sk, i); 3006 if (sk_X509_NAME_set(sk, i, 3007 X509_NAME_dup(xn)) == NULL) { 3008 X509_NAME_free(xn); 3009 goto err; 3010 } 3011 } 3012 } 3013 3014 return ret; 3015 err: 3016 SSL_free(ret); 3017 return NULL; 3018} 3019LSSL_ALIAS(SSL_dup); 3020 3021void 3022ssl_clear_cipher_state(SSL *s) 3023{ 3024 tls12_record_layer_clear_read_state(s->rl); 3025 tls12_record_layer_clear_write_state(s->rl); 3026} 3027 3028void 3029ssl_info_callback(const SSL *s, int type, int value) 3030{ 3031 ssl_info_callback_fn *cb; 3032 3033 if ((cb = s->info_callback) == NULL) 3034 cb = s->ctx->info_callback; 3035 if (cb != NULL) 3036 cb(s, type, value); 3037} 3038 3039void 3040ssl_msg_callback(SSL *s, int is_write, int content_type, 3041 const void *msg_buf, size_t msg_len) 3042{ 3043 if (s->msg_callback == NULL) 3044 return; 3045 3046 s->msg_callback(is_write, s->version, content_type, 3047 msg_buf, msg_len, s, s->msg_callback_arg); 3048} 3049 3050void 3051ssl_msg_callback_cbs(SSL *s, int is_write, int content_type, CBS *cbs) 3052{ 3053 ssl_msg_callback(s, is_write, content_type, CBS_data(cbs), CBS_len(cbs)); 3054} 3055 3056/* Fix this function so that it takes an optional type parameter */ 3057X509 * 3058SSL_get_certificate(const SSL *s) 3059{ 3060 return (s->cert->key->x509); 3061} 3062LSSL_ALIAS(SSL_get_certificate); 3063 3064/* Fix this function so that it takes an optional type parameter */ 3065EVP_PKEY * 3066SSL_get_privatekey(const SSL *s) 3067{ 3068 return (s->cert->key->privatekey); 3069} 3070LSSL_ALIAS(SSL_get_privatekey); 3071 3072const SSL_CIPHER * 3073SSL_get_current_cipher(const SSL *s) 3074{ 3075 if ((s->session != NULL) && (s->session->cipher != NULL)) 3076 return (s->session->cipher); 3077 return (NULL); 3078} 3079LSSL_ALIAS(SSL_get_current_cipher); 3080const void * 3081SSL_get_current_compression(SSL *s) 3082{ 3083 return (NULL); 3084} 3085LSSL_ALIAS(SSL_get_current_compression); 3086 3087const void * 3088SSL_get_current_expansion(SSL *s) 3089{ 3090 return (NULL); 3091} 3092LSSL_ALIAS(SSL_get_current_expansion); 3093 3094size_t 3095SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 3096{ 3097 size_t len = sizeof(s->s3->client_random); 3098 3099 if (out == NULL) 3100 return len; 3101 3102 if (len > max_out) 3103 len = max_out; 3104 3105 memcpy(out, s->s3->client_random, len); 3106 3107 return len; 3108} 3109LSSL_ALIAS(SSL_get_client_random); 3110 3111size_t 3112SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 3113{ 3114 size_t len = sizeof(s->s3->server_random); 3115 3116 if (out == NULL) 3117 return len; 3118 3119 if (len > max_out) 3120 len = max_out; 3121 3122 memcpy(out, s->s3->server_random, len); 3123 3124 return len; 3125} 3126LSSL_ALIAS(SSL_get_server_random); 3127 3128int 3129ssl_init_wbio_buffer(SSL *s, int push) 3130{ 3131 BIO *bbio; 3132 3133 if (s->bbio == NULL) { 3134 bbio = BIO_new(BIO_f_buffer()); 3135 if (bbio == NULL) 3136 return (0); 3137 s->bbio = bbio; 3138 } else { 3139 bbio = s->bbio; 3140 if (s->bbio == s->wbio) 3141 s->wbio = BIO_pop(s->wbio); 3142 } 3143 (void)BIO_reset(bbio); 3144/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 3145 if (!BIO_set_read_buffer_size(bbio, 1)) { 3146 SSLerror(s, ERR_R_BUF_LIB); 3147 return (0); 3148 } 3149 if (push) { 3150 if (s->wbio != bbio) 3151 s->wbio = BIO_push(bbio, s->wbio); 3152 } else { 3153 if (s->wbio == bbio) 3154 s->wbio = BIO_pop(bbio); 3155 } 3156 return (1); 3157} 3158 3159void 3160ssl_free_wbio_buffer(SSL *s) 3161{ 3162 if (s == NULL) 3163 return; 3164 3165 if (s->bbio == NULL) 3166 return; 3167 3168 if (s->bbio == s->wbio) { 3169 /* remove buffering */ 3170 s->wbio = BIO_pop(s->wbio); 3171 } 3172 BIO_free(s->bbio); 3173 s->bbio = NULL; 3174} 3175 3176void 3177SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 3178{ 3179 ctx->quiet_shutdown = mode; 3180} 3181LSSL_ALIAS(SSL_CTX_set_quiet_shutdown); 3182 3183int 3184SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 3185{ 3186 return (ctx->quiet_shutdown); 3187} 3188LSSL_ALIAS(SSL_CTX_get_quiet_shutdown); 3189 3190void 3191SSL_set_quiet_shutdown(SSL *s, int mode) 3192{ 3193 s->quiet_shutdown = mode; 3194} 3195LSSL_ALIAS(SSL_set_quiet_shutdown); 3196 3197int 3198SSL_get_quiet_shutdown(const SSL *s) 3199{ 3200 return (s->quiet_shutdown); 3201} 3202LSSL_ALIAS(SSL_get_quiet_shutdown); 3203 3204void 3205SSL_set_shutdown(SSL *s, int mode) 3206{ 3207 s->shutdown = mode; 3208} 3209LSSL_ALIAS(SSL_set_shutdown); 3210 3211int 3212SSL_get_shutdown(const SSL *s) 3213{ 3214 return (s->shutdown); 3215} 3216LSSL_ALIAS(SSL_get_shutdown); 3217 3218int 3219SSL_version(const SSL *s) 3220{ 3221 return (s->version); 3222} 3223LSSL_ALIAS(SSL_version); 3224 3225SSL_CTX * 3226SSL_get_SSL_CTX(const SSL *ssl) 3227{ 3228 return (ssl->ctx); 3229} 3230LSSL_ALIAS(SSL_get_SSL_CTX); 3231 3232SSL_CTX * 3233SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 3234{ 3235 SSL_CERT *new_cert; 3236 3237 if (ctx == NULL) 3238 ctx = ssl->initial_ctx; 3239 if (ssl->ctx == ctx) 3240 return (ssl->ctx); 3241 3242 if ((new_cert = ssl_cert_dup(ctx->cert)) == NULL) 3243 return NULL; 3244 ssl_cert_free(ssl->cert); 3245 ssl->cert = new_cert; 3246 3247 SSL_CTX_up_ref(ctx); 3248 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 3249 ssl->ctx = ctx; 3250 3251 return (ssl->ctx); 3252} 3253LSSL_ALIAS(SSL_set_SSL_CTX); 3254 3255int 3256SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 3257{ 3258 return (X509_STORE_set_default_paths(ctx->cert_store)); 3259} 3260LSSL_ALIAS(SSL_CTX_set_default_verify_paths); 3261 3262int 3263SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 3264 const char *CApath) 3265{ 3266 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 3267} 3268LSSL_ALIAS(SSL_CTX_load_verify_locations); 3269 3270int 3271SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 3272{ 3273 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 3274} 3275LSSL_ALIAS(SSL_CTX_load_verify_mem); 3276 3277void 3278SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 3279{ 3280 ssl->info_callback = cb; 3281} 3282LSSL_ALIAS(SSL_set_info_callback); 3283 3284void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 3285{ 3286 return (ssl->info_callback); 3287} 3288LSSL_ALIAS(SSL_get_info_callback); 3289 3290int 3291SSL_state(const SSL *ssl) 3292{ 3293 return (ssl->s3->hs.state); 3294} 3295LSSL_ALIAS(SSL_state); 3296 3297void 3298SSL_set_state(SSL *ssl, int state) 3299{ 3300 ssl->s3->hs.state = state; 3301} 3302LSSL_ALIAS(SSL_set_state); 3303 3304void 3305SSL_set_verify_result(SSL *ssl, long arg) 3306{ 3307 ssl->verify_result = arg; 3308} 3309LSSL_ALIAS(SSL_set_verify_result); 3310 3311long 3312SSL_get_verify_result(const SSL *ssl) 3313{ 3314 return (ssl->verify_result); 3315} 3316LSSL_ALIAS(SSL_get_verify_result); 3317 3318int 3319SSL_verify_client_post_handshake(SSL *ssl) 3320{ 3321 return 0; 3322} 3323LSSL_ALIAS(SSL_verify_client_post_handshake); 3324 3325void 3326SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val) 3327{ 3328 return; 3329} 3330LSSL_ALIAS(SSL_CTX_set_post_handshake_auth); 3331 3332void 3333SSL_set_post_handshake_auth(SSL *ssl, int val) 3334{ 3335 return; 3336} 3337LSSL_ALIAS(SSL_set_post_handshake_auth); 3338 3339int 3340SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3341 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3342{ 3343 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 3344 new_func, dup_func, free_func)); 3345} 3346LSSL_ALIAS(SSL_get_ex_new_index); 3347 3348int 3349SSL_set_ex_data(SSL *s, int idx, void *arg) 3350{ 3351 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3352} 3353LSSL_ALIAS(SSL_set_ex_data); 3354 3355void * 3356SSL_get_ex_data(const SSL *s, int idx) 3357{ 3358 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3359} 3360LSSL_ALIAS(SSL_get_ex_data); 3361 3362int 3363SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3364 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3365{ 3366 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 3367 new_func, dup_func, free_func)); 3368} 3369LSSL_ALIAS(SSL_CTX_get_ex_new_index); 3370 3371int 3372SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 3373{ 3374 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3375} 3376LSSL_ALIAS(SSL_CTX_set_ex_data); 3377 3378void * 3379SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 3380{ 3381 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3382} 3383LSSL_ALIAS(SSL_CTX_get_ex_data); 3384 3385int 3386ssl_ok(SSL *s) 3387{ 3388 return (1); 3389} 3390 3391X509_STORE * 3392SSL_CTX_get_cert_store(const SSL_CTX *ctx) 3393{ 3394 return (ctx->cert_store); 3395} 3396LSSL_ALIAS(SSL_CTX_get_cert_store); 3397 3398void 3399SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 3400{ 3401 X509_STORE_free(ctx->cert_store); 3402 ctx->cert_store = store; 3403} 3404LSSL_ALIAS(SSL_CTX_set_cert_store); 3405 3406X509 * 3407SSL_CTX_get0_certificate(const SSL_CTX *ctx) 3408{ 3409 if (ctx->cert == NULL) 3410 return NULL; 3411 3412 return ctx->cert->key->x509; 3413} 3414LSSL_ALIAS(SSL_CTX_get0_certificate); 3415 3416EVP_PKEY * 3417SSL_CTX_get0_privatekey(const SSL_CTX *ctx) 3418{ 3419 if (ctx->cert == NULL) 3420 return NULL; 3421 3422 return ctx->cert->key->privatekey; 3423} 3424LSSL_ALIAS(SSL_CTX_get0_privatekey); 3425 3426int 3427SSL_want(const SSL *s) 3428{ 3429 return (s->rwstate); 3430} 3431LSSL_ALIAS(SSL_want); 3432 3433void 3434SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 3435 int keylength)) 3436{ 3437 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3438} 3439LSSL_ALIAS(SSL_CTX_set_tmp_rsa_callback); 3440 3441void 3442SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 3443 int keylength)) 3444{ 3445 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3446} 3447LSSL_ALIAS(SSL_set_tmp_rsa_callback); 3448 3449void 3450SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 3451 int keylength)) 3452{ 3453 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3454} 3455LSSL_ALIAS(SSL_CTX_set_tmp_dh_callback); 3456 3457void 3458SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 3459 int keylength)) 3460{ 3461 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3462} 3463LSSL_ALIAS(SSL_set_tmp_dh_callback); 3464 3465void 3466SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 3467 int is_export, int keylength)) 3468{ 3469 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 3470 (void (*)(void))ecdh); 3471} 3472LSSL_ALIAS(SSL_CTX_set_tmp_ecdh_callback); 3473 3474void 3475SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 3476 int keylength)) 3477{ 3478 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 3479} 3480LSSL_ALIAS(SSL_set_tmp_ecdh_callback); 3481 3482 3483void 3484SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 3485 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3486{ 3487 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 3488 (void (*)(void))cb); 3489} 3490LSSL_ALIAS(SSL_CTX_set_msg_callback); 3491 3492void 3493SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 3494 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3495{ 3496 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3497} 3498LSSL_ALIAS(SSL_set_msg_callback); 3499 3500void 3501SSL_set_debug(SSL *s, int debug) 3502{ 3503 s->debug = debug; 3504} 3505LSSL_ALIAS(SSL_set_debug); 3506 3507int 3508SSL_cache_hit(SSL *s) 3509{ 3510 return (s->hit); 3511} 3512LSSL_ALIAS(SSL_cache_hit); 3513 3514int 3515SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 3516{ 3517 return ctx->min_proto_version; 3518} 3519LSSL_ALIAS(SSL_CTX_get_min_proto_version); 3520 3521int 3522SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 3523{ 3524 return ssl_version_set_min(ctx->method, version, 3525 ctx->max_tls_version, &ctx->min_tls_version, 3526 &ctx->min_proto_version); 3527} 3528LSSL_ALIAS(SSL_CTX_set_min_proto_version); 3529 3530int 3531SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 3532{ 3533 return ctx->max_proto_version; 3534} 3535LSSL_ALIAS(SSL_CTX_get_max_proto_version); 3536 3537int 3538SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 3539{ 3540 return ssl_version_set_max(ctx->method, version, 3541 ctx->min_tls_version, &ctx->max_tls_version, 3542 &ctx->max_proto_version); 3543} 3544LSSL_ALIAS(SSL_CTX_set_max_proto_version); 3545 3546int 3547SSL_get_min_proto_version(SSL *ssl) 3548{ 3549 return ssl->min_proto_version; 3550} 3551LSSL_ALIAS(SSL_get_min_proto_version); 3552 3553int 3554SSL_set_min_proto_version(SSL *ssl, uint16_t version) 3555{ 3556 return ssl_version_set_min(ssl->method, version, 3557 ssl->max_tls_version, &ssl->min_tls_version, 3558 &ssl->min_proto_version); 3559} 3560LSSL_ALIAS(SSL_set_min_proto_version); 3561int 3562SSL_get_max_proto_version(SSL *ssl) 3563{ 3564 return ssl->max_proto_version; 3565} 3566LSSL_ALIAS(SSL_get_max_proto_version); 3567 3568int 3569SSL_set_max_proto_version(SSL *ssl, uint16_t version) 3570{ 3571 return ssl_version_set_max(ssl->method, version, 3572 ssl->min_tls_version, &ssl->max_tls_version, 3573 &ssl->max_proto_version); 3574} 3575LSSL_ALIAS(SSL_set_max_proto_version); 3576 3577const SSL_METHOD * 3578SSL_CTX_get_ssl_method(const SSL_CTX *ctx) 3579{ 3580 return ctx->method; 3581} 3582LSSL_ALIAS(SSL_CTX_get_ssl_method); 3583 3584int 3585SSL_CTX_get_security_level(const SSL_CTX *ctx) 3586{ 3587 return ctx->cert->security_level; 3588} 3589LSSL_ALIAS(SSL_CTX_get_security_level); 3590 3591void 3592SSL_CTX_set_security_level(SSL_CTX *ctx, int level) 3593{ 3594 ctx->cert->security_level = level; 3595} 3596LSSL_ALIAS(SSL_CTX_set_security_level); 3597 3598int 3599SSL_get_security_level(const SSL *ssl) 3600{ 3601 return ssl->cert->security_level; 3602} 3603LSSL_ALIAS(SSL_get_security_level); 3604 3605void 3606SSL_set_security_level(SSL *ssl, int level) 3607{ 3608 ssl->cert->security_level = level; 3609} 3610LSSL_ALIAS(SSL_set_security_level); 3611 3612int 3613SSL_is_quic(const SSL *ssl) 3614{ 3615 return ssl->quic_method != NULL; 3616} 3617LSSL_ALIAS(SSL_is_quic); 3618 3619int 3620SSL_set_quic_transport_params(SSL *ssl, const uint8_t *params, 3621 size_t params_len) 3622{ 3623 freezero(ssl->quic_transport_params, 3624 ssl->quic_transport_params_len); 3625 ssl->quic_transport_params = NULL; 3626 ssl->quic_transport_params_len = 0; 3627 3628 if ((ssl->quic_transport_params = malloc(params_len)) == NULL) 3629 return 0; 3630 3631 memcpy(ssl->quic_transport_params, params, params_len); 3632 ssl->quic_transport_params_len = params_len; 3633 3634 return 1; 3635} 3636LSSL_ALIAS(SSL_set_quic_transport_params); 3637 3638void 3639SSL_get_peer_quic_transport_params(const SSL *ssl, const uint8_t **out_params, 3640 size_t *out_params_len) 3641{ 3642 *out_params = ssl->s3->peer_quic_transport_params; 3643 *out_params_len = ssl->s3->peer_quic_transport_params_len; 3644} 3645LSSL_ALIAS(SSL_get_peer_quic_transport_params); 3646 3647void 3648SSL_set_quic_use_legacy_codepoint(SSL *ssl, int use_legacy) 3649{ 3650 /* Not supported. */ 3651} 3652LSSL_ALIAS(SSL_set_quic_use_legacy_codepoint); 3653 3654static int 3655ssl_cipher_id_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 3656{ 3657 SSL_CIPHER const *a = a_; 3658 SSL_CIPHER const *b = b_; 3659 return ssl_cipher_id_cmp(a, b); 3660} 3661 3662SSL_CIPHER * 3663OBJ_bsearch_ssl_cipher_id(SSL_CIPHER *key, SSL_CIPHER const *base, int num) 3664{ 3665 return (SSL_CIPHER *)OBJ_bsearch_(key, base, num, sizeof(SSL_CIPHER), 3666 ssl_cipher_id_cmp_BSEARCH_CMP_FN); 3667} 3668