1 /* $OpenBSD: ssl_lib.c,v 1.330 2024/09/22 14:59:48 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" 163 164 int 165 SSL_clear(SSL *s) 166 { 167 if (s->method == NULL) { 168 SSLerror(s, SSL_R_NO_METHOD_SPECIFIED); 169 return (0); 170 } 171 172 if (ssl_clear_bad_session(s)) { 173 SSL_SESSION_free(s->session); 174 s->session = NULL; 175 } 176 177 s->error = 0; 178 s->hit = 0; 179 s->shutdown = 0; 180 181 if (s->renegotiate) { 182 SSLerror(s, ERR_R_INTERNAL_ERROR); 183 return (0); 184 } 185 186 s->version = s->method->version; 187 s->client_version = s->version; 188 s->rwstate = SSL_NOTHING; 189 s->rstate = SSL_ST_READ_HEADER; 190 191 tls13_ctx_free(s->tls13); 192 s->tls13 = NULL; 193 194 ssl3_release_init_buffer(s); 195 196 ssl_clear_cipher_state(s); 197 198 s->first_packet = 0; 199 200 /* 201 * Check to see if we were changed into a different method, if 202 * so, revert back if we are not doing session-id reuse. 203 */ 204 if (!s->in_handshake && (s->session == NULL) && 205 (s->method != s->ctx->method)) { 206 s->method->ssl_free(s); 207 s->method = s->ctx->method; 208 if (!s->method->ssl_new(s)) 209 return (0); 210 } else 211 s->method->ssl_clear(s); 212 213 return (1); 214 } 215 LSSL_ALIAS(SSL_clear); 216 217 /* Used to change an SSL_CTXs default SSL method type */ 218 int 219 SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 220 { 221 STACK_OF(SSL_CIPHER) *ciphers; 222 223 ctx->method = meth; 224 225 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 226 ctx->cipher_list_tls13, SSL_DEFAULT_CIPHER_LIST, 227 ctx->cert); 228 if (ciphers == NULL || sk_SSL_CIPHER_num(ciphers) <= 0) { 229 SSLerrorx(SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 230 return (0); 231 } 232 return (1); 233 } 234 LSSL_ALIAS(SSL_CTX_set_ssl_version); 235 236 SSL * 237 SSL_new(SSL_CTX *ctx) 238 { 239 SSL *s; 240 CBS cbs; 241 242 if (ctx == NULL) { 243 SSLerrorx(SSL_R_NULL_SSL_CTX); 244 return (NULL); 245 } 246 if (ctx->method == NULL) { 247 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 248 return (NULL); 249 } 250 251 if ((s = calloc(1, sizeof(*s))) == NULL) 252 goto err; 253 254 if ((s->rl = tls12_record_layer_new()) == NULL) 255 goto err; 256 257 s->min_tls_version = ctx->min_tls_version; 258 s->max_tls_version = ctx->max_tls_version; 259 s->min_proto_version = ctx->min_proto_version; 260 s->max_proto_version = ctx->max_proto_version; 261 262 s->options = ctx->options; 263 s->mode = ctx->mode; 264 s->max_cert_list = ctx->max_cert_list; 265 s->num_tickets = ctx->num_tickets; 266 267 if ((s->cert = ssl_cert_dup(ctx->cert)) == NULL) 268 goto err; 269 270 s->read_ahead = ctx->read_ahead; 271 s->msg_callback = ctx->msg_callback; 272 s->msg_callback_arg = ctx->msg_callback_arg; 273 s->verify_mode = ctx->verify_mode; 274 s->sid_ctx_length = ctx->sid_ctx_length; 275 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 276 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); 277 s->verify_callback = ctx->default_verify_callback; 278 s->generate_session_id = ctx->generate_session_id; 279 280 s->param = X509_VERIFY_PARAM_new(); 281 if (!s->param) 282 goto err; 283 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 284 s->quiet_shutdown = ctx->quiet_shutdown; 285 s->max_send_fragment = ctx->max_send_fragment; 286 287 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 288 s->ctx = ctx; 289 s->tlsext_debug_cb = NULL; 290 s->tlsext_debug_arg = NULL; 291 s->tlsext_ticket_expected = 0; 292 s->tlsext_status_type = -1; 293 s->tlsext_status_expected = 0; 294 s->tlsext_ocsp_ids = NULL; 295 s->tlsext_ocsp_exts = NULL; 296 s->tlsext_ocsp_resp = NULL; 297 s->tlsext_ocsp_resp_len = 0; 298 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 299 s->initial_ctx = ctx; 300 301 if (!tlsext_randomize_build_order(s)) 302 goto err; 303 304 if (ctx->tlsext_ecpointformatlist != NULL) { 305 s->tlsext_ecpointformatlist = 306 calloc(ctx->tlsext_ecpointformatlist_length, 307 sizeof(ctx->tlsext_ecpointformatlist[0])); 308 if (s->tlsext_ecpointformatlist == NULL) 309 goto err; 310 memcpy(s->tlsext_ecpointformatlist, 311 ctx->tlsext_ecpointformatlist, 312 ctx->tlsext_ecpointformatlist_length * 313 sizeof(ctx->tlsext_ecpointformatlist[0])); 314 s->tlsext_ecpointformatlist_length = 315 ctx->tlsext_ecpointformatlist_length; 316 } 317 if (ctx->tlsext_supportedgroups != NULL) { 318 s->tlsext_supportedgroups = 319 calloc(ctx->tlsext_supportedgroups_length, 320 sizeof(ctx->tlsext_supportedgroups[0])); 321 if (s->tlsext_supportedgroups == NULL) 322 goto err; 323 memcpy(s->tlsext_supportedgroups, 324 ctx->tlsext_supportedgroups, 325 ctx->tlsext_supportedgroups_length * 326 sizeof(ctx->tlsext_supportedgroups[0])); 327 s->tlsext_supportedgroups_length = 328 ctx->tlsext_supportedgroups_length; 329 } 330 331 CBS_init(&cbs, ctx->alpn_client_proto_list, 332 ctx->alpn_client_proto_list_len); 333 if (!CBS_stow(&cbs, &s->alpn_client_proto_list, 334 &s->alpn_client_proto_list_len)) 335 goto err; 336 337 s->verify_result = X509_V_OK; 338 339 s->method = ctx->method; 340 s->quic_method = ctx->quic_method; 341 342 if (!s->method->ssl_new(s)) 343 goto err; 344 345 s->references = 1; 346 s->server = ctx->method->server; 347 348 SSL_clear(s); 349 350 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 351 352 return (s); 353 354 err: 355 SSL_free(s); 356 SSLerrorx(ERR_R_MALLOC_FAILURE); 357 return (NULL); 358 } 359 LSSL_ALIAS(SSL_new); 360 361 int 362 SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 363 unsigned int sid_ctx_len) 364 { 365 if (sid_ctx_len > sizeof ctx->sid_ctx) { 366 SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 367 return (0); 368 } 369 ctx->sid_ctx_length = sid_ctx_len; 370 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 371 372 return (1); 373 } 374 LSSL_ALIAS(SSL_CTX_set_session_id_context); 375 376 int 377 SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 378 unsigned int sid_ctx_len) 379 { 380 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 381 SSLerror(ssl, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 382 return (0); 383 } 384 ssl->sid_ctx_length = sid_ctx_len; 385 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 386 387 return (1); 388 } 389 LSSL_ALIAS(SSL_set_session_id_context); 390 391 int 392 SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 393 { 394 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 395 ctx->generate_session_id = cb; 396 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 397 return (1); 398 } 399 LSSL_ALIAS(SSL_CTX_set_generate_session_id); 400 401 int 402 SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 403 { 404 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 405 ssl->generate_session_id = cb; 406 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 407 return (1); 408 } 409 LSSL_ALIAS(SSL_set_generate_session_id); 410 411 int 412 SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 413 unsigned int id_len) 414 { 415 /* 416 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 417 * shows how we can "construct" a session to give us the desired 418 * check - ie. to find if there's a session in the hash table 419 * that would conflict with any new session built out of this 420 * id/id_len and the ssl_version in use by this SSL. 421 */ 422 SSL_SESSION r, *p; 423 424 if (id_len > sizeof r.session_id) 425 return (0); 426 427 r.ssl_version = ssl->version; 428 r.session_id_length = id_len; 429 memcpy(r.session_id, id, id_len); 430 431 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 432 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r); 433 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 434 return (p != NULL); 435 } 436 LSSL_ALIAS(SSL_has_matching_session_id); 437 438 int 439 SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 440 { 441 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 442 } 443 LSSL_ALIAS(SSL_CTX_set_purpose); 444 445 int 446 SSL_set_purpose(SSL *s, int purpose) 447 { 448 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 449 } 450 LSSL_ALIAS(SSL_set_purpose); 451 452 int 453 SSL_CTX_set_trust(SSL_CTX *s, int trust) 454 { 455 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 456 } 457 LSSL_ALIAS(SSL_CTX_set_trust); 458 459 int 460 SSL_set_trust(SSL *s, int trust) 461 { 462 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 463 } 464 LSSL_ALIAS(SSL_set_trust); 465 466 int 467 SSL_set1_host(SSL *s, const char *hostname) 468 { 469 struct in_addr ina; 470 struct in6_addr in6a; 471 472 if (hostname != NULL && *hostname != '\0' && 473 (inet_pton(AF_INET, hostname, &ina) == 1 || 474 inet_pton(AF_INET6, hostname, &in6a) == 1)) 475 return X509_VERIFY_PARAM_set1_ip_asc(s->param, hostname); 476 else 477 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); 478 } 479 LSSL_ALIAS(SSL_set1_host); 480 481 void 482 SSL_set_hostflags(SSL *s, unsigned int flags) 483 { 484 X509_VERIFY_PARAM_set_hostflags(s->param, flags); 485 } 486 LSSL_ALIAS(SSL_set_hostflags); 487 488 const char * 489 SSL_get0_peername(SSL *s) 490 { 491 return X509_VERIFY_PARAM_get0_peername(s->param); 492 } 493 LSSL_ALIAS(SSL_get0_peername); 494 495 X509_VERIFY_PARAM * 496 SSL_CTX_get0_param(SSL_CTX *ctx) 497 { 498 return (ctx->param); 499 } 500 LSSL_ALIAS(SSL_CTX_get0_param); 501 502 int 503 SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 504 { 505 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 506 } 507 LSSL_ALIAS(SSL_CTX_set1_param); 508 509 X509_VERIFY_PARAM * 510 SSL_get0_param(SSL *ssl) 511 { 512 return (ssl->param); 513 } 514 LSSL_ALIAS(SSL_get0_param); 515 516 int 517 SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 518 { 519 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 520 } 521 LSSL_ALIAS(SSL_set1_param); 522 523 void 524 SSL_free(SSL *s) 525 { 526 int i; 527 528 if (s == NULL) 529 return; 530 531 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 532 if (i > 0) 533 return; 534 535 X509_VERIFY_PARAM_free(s->param); 536 537 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 538 539 if (s->bbio != NULL) { 540 /* If the buffering BIO is in place, pop it off */ 541 if (s->bbio == s->wbio) { 542 s->wbio = BIO_pop(s->wbio); 543 } 544 BIO_free(s->bbio); 545 s->bbio = NULL; 546 } 547 548 if (s->rbio != s->wbio) 549 BIO_free_all(s->rbio); 550 BIO_free_all(s->wbio); 551 552 tls13_ctx_free(s->tls13); 553 554 ssl3_release_init_buffer(s); 555 556 sk_SSL_CIPHER_free(s->cipher_list); 557 sk_SSL_CIPHER_free(s->cipher_list_tls13); 558 559 /* Make the next call work :-) */ 560 if (s->session != NULL) { 561 ssl_clear_bad_session(s); 562 SSL_SESSION_free(s->session); 563 } 564 565 ssl_clear_cipher_state(s); 566 567 ssl_cert_free(s->cert); 568 569 free(s->tlsext_build_order); 570 571 free(s->tlsext_hostname); 572 SSL_CTX_free(s->initial_ctx); 573 574 free(s->tlsext_ecpointformatlist); 575 free(s->tlsext_supportedgroups); 576 577 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 578 X509_EXTENSION_free); 579 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 580 free(s->tlsext_ocsp_resp); 581 582 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); 583 584 if (s->method != NULL) 585 s->method->ssl_free(s); 586 587 SSL_CTX_free(s->ctx); 588 589 free(s->alpn_client_proto_list); 590 591 free(s->quic_transport_params); 592 593 #ifndef OPENSSL_NO_SRTP 594 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); 595 #endif 596 597 tls12_record_layer_free(s->rl); 598 599 free(s); 600 } 601 LSSL_ALIAS(SSL_free); 602 603 int 604 SSL_up_ref(SSL *s) 605 { 606 return CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL) > 1; 607 } 608 LSSL_ALIAS(SSL_up_ref); 609 610 void 611 SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 612 { 613 /* If the output buffering BIO is still in place, remove it */ 614 if (s->bbio != NULL) { 615 if (s->wbio == s->bbio) { 616 s->wbio = BIO_next(s->wbio); 617 BIO_set_next(s->bbio, NULL); 618 } 619 } 620 621 if (s->rbio != rbio && s->rbio != s->wbio) 622 BIO_free_all(s->rbio); 623 if (s->wbio != wbio) 624 BIO_free_all(s->wbio); 625 s->rbio = rbio; 626 s->wbio = wbio; 627 } 628 LSSL_ALIAS(SSL_set_bio); 629 630 BIO * 631 SSL_get_rbio(const SSL *s) 632 { 633 return (s->rbio); 634 } 635 LSSL_ALIAS(SSL_get_rbio); 636 637 void 638 SSL_set0_rbio(SSL *s, BIO *rbio) 639 { 640 BIO_free_all(s->rbio); 641 s->rbio = rbio; 642 } 643 LSSL_ALIAS(SSL_set0_rbio); 644 645 BIO * 646 SSL_get_wbio(const SSL *s) 647 { 648 return (s->wbio); 649 } 650 LSSL_ALIAS(SSL_get_wbio); 651 652 int 653 SSL_get_fd(const SSL *s) 654 { 655 return (SSL_get_rfd(s)); 656 } 657 LSSL_ALIAS(SSL_get_fd); 658 659 int 660 SSL_get_rfd(const SSL *s) 661 { 662 int ret = -1; 663 BIO *b, *r; 664 665 b = SSL_get_rbio(s); 666 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 667 if (r != NULL) 668 BIO_get_fd(r, &ret); 669 return (ret); 670 } 671 LSSL_ALIAS(SSL_get_rfd); 672 673 int 674 SSL_get_wfd(const SSL *s) 675 { 676 int ret = -1; 677 BIO *b, *r; 678 679 b = SSL_get_wbio(s); 680 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 681 if (r != NULL) 682 BIO_get_fd(r, &ret); 683 return (ret); 684 } 685 LSSL_ALIAS(SSL_get_wfd); 686 687 int 688 SSL_set_fd(SSL *s, int fd) 689 { 690 int ret = 0; 691 BIO *bio = NULL; 692 693 bio = BIO_new(BIO_s_socket()); 694 695 if (bio == NULL) { 696 SSLerror(s, ERR_R_BUF_LIB); 697 goto err; 698 } 699 BIO_set_fd(bio, fd, BIO_NOCLOSE); 700 SSL_set_bio(s, bio, bio); 701 ret = 1; 702 err: 703 return (ret); 704 } 705 LSSL_ALIAS(SSL_set_fd); 706 707 int 708 SSL_set_wfd(SSL *s, int fd) 709 { 710 int ret = 0; 711 BIO *bio = NULL; 712 713 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 714 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 715 bio = BIO_new(BIO_s_socket()); 716 717 if (bio == NULL) { 718 SSLerror(s, ERR_R_BUF_LIB); 719 goto err; 720 } 721 BIO_set_fd(bio, fd, BIO_NOCLOSE); 722 SSL_set_bio(s, SSL_get_rbio(s), bio); 723 } else 724 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 725 ret = 1; 726 err: 727 return (ret); 728 } 729 LSSL_ALIAS(SSL_set_wfd); 730 731 int 732 SSL_set_rfd(SSL *s, int fd) 733 { 734 int ret = 0; 735 BIO *bio = NULL; 736 737 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 738 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 739 bio = BIO_new(BIO_s_socket()); 740 741 if (bio == NULL) { 742 SSLerror(s, ERR_R_BUF_LIB); 743 goto err; 744 } 745 BIO_set_fd(bio, fd, BIO_NOCLOSE); 746 SSL_set_bio(s, bio, SSL_get_wbio(s)); 747 } else 748 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 749 ret = 1; 750 err: 751 return (ret); 752 } 753 LSSL_ALIAS(SSL_set_rfd); 754 755 756 /* return length of latest Finished message we sent, copy to 'buf' */ 757 size_t 758 SSL_get_finished(const SSL *s, void *buf, size_t count) 759 { 760 size_t ret; 761 762 ret = s->s3->hs.finished_len; 763 if (count > ret) 764 count = ret; 765 memcpy(buf, s->s3->hs.finished, count); 766 return (ret); 767 } 768 LSSL_ALIAS(SSL_get_finished); 769 770 /* return length of latest Finished message we expected, copy to 'buf' */ 771 size_t 772 SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 773 { 774 size_t ret; 775 776 ret = s->s3->hs.peer_finished_len; 777 if (count > ret) 778 count = ret; 779 memcpy(buf, s->s3->hs.peer_finished, count); 780 return (ret); 781 } 782 LSSL_ALIAS(SSL_get_peer_finished); 783 784 785 int 786 SSL_get_verify_mode(const SSL *s) 787 { 788 return (s->verify_mode); 789 } 790 LSSL_ALIAS(SSL_get_verify_mode); 791 792 int 793 SSL_get_verify_depth(const SSL *s) 794 { 795 return (X509_VERIFY_PARAM_get_depth(s->param)); 796 } 797 LSSL_ALIAS(SSL_get_verify_depth); 798 799 int 800 (*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 801 { 802 return (s->verify_callback); 803 } 804 LSSL_ALIAS(SSL_get_verify_callback); 805 806 void 807 SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) 808 { 809 ctx->keylog_callback = cb; 810 } 811 LSSL_ALIAS(SSL_CTX_set_keylog_callback); 812 813 SSL_CTX_keylog_cb_func 814 SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) 815 { 816 return (ctx->keylog_callback); 817 } 818 LSSL_ALIAS(SSL_CTX_get_keylog_callback); 819 820 int 821 SSL_set_num_tickets(SSL *s, size_t num_tickets) 822 { 823 s->num_tickets = num_tickets; 824 825 return 1; 826 } 827 LSSL_ALIAS(SSL_set_num_tickets); 828 829 size_t 830 SSL_get_num_tickets(const SSL *s) 831 { 832 return s->num_tickets; 833 } 834 LSSL_ALIAS(SSL_get_num_tickets); 835 836 int 837 SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets) 838 { 839 ctx->num_tickets = num_tickets; 840 841 return 1; 842 } 843 LSSL_ALIAS(SSL_CTX_set_num_tickets); 844 845 size_t 846 SSL_CTX_get_num_tickets(const SSL_CTX *ctx) 847 { 848 return ctx->num_tickets; 849 } 850 LSSL_ALIAS(SSL_CTX_get_num_tickets); 851 852 int 853 SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 854 { 855 return (ctx->verify_mode); 856 } 857 LSSL_ALIAS(SSL_CTX_get_verify_mode); 858 859 int 860 SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 861 { 862 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 863 } 864 LSSL_ALIAS(SSL_CTX_get_verify_depth); 865 866 int 867 (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 868 { 869 return (ctx->default_verify_callback); 870 } 871 LSSL_ALIAS(SSL_CTX_get_verify_callback); 872 873 void 874 SSL_set_verify(SSL *s, int mode, 875 int (*callback)(int ok, X509_STORE_CTX *ctx)) 876 { 877 s->verify_mode = mode; 878 if (callback != NULL) 879 s->verify_callback = callback; 880 } 881 LSSL_ALIAS(SSL_set_verify); 882 883 void 884 SSL_set_verify_depth(SSL *s, int depth) 885 { 886 X509_VERIFY_PARAM_set_depth(s->param, depth); 887 } 888 LSSL_ALIAS(SSL_set_verify_depth); 889 890 void 891 SSL_set_read_ahead(SSL *s, int yes) 892 { 893 s->read_ahead = yes; 894 } 895 LSSL_ALIAS(SSL_set_read_ahead); 896 897 int 898 SSL_get_read_ahead(const SSL *s) 899 { 900 return (s->read_ahead); 901 } 902 LSSL_ALIAS(SSL_get_read_ahead); 903 904 int 905 SSL_pending(const SSL *s) 906 { 907 return (s->method->ssl_pending(s)); 908 } 909 LSSL_ALIAS(SSL_pending); 910 911 X509 * 912 SSL_get_peer_certificate(const SSL *s) 913 { 914 X509 *cert; 915 916 if (s == NULL || s->session == NULL) 917 return NULL; 918 919 if ((cert = s->session->peer_cert) == NULL) 920 return NULL; 921 922 X509_up_ref(cert); 923 924 return cert; 925 } 926 LSSL_ALIAS(SSL_get_peer_certificate); 927 928 STACK_OF(X509) * 929 SSL_get_peer_cert_chain(const SSL *s) 930 { 931 if (s == NULL) 932 return NULL; 933 934 /* 935 * Achtung! Due to API inconsistency, a client includes the peer's leaf 936 * certificate in the peer certificate chain, while a server does not. 937 */ 938 if (!s->server) 939 return s->s3->hs.peer_certs; 940 941 return s->s3->hs.peer_certs_no_leaf; 942 } 943 LSSL_ALIAS(SSL_get_peer_cert_chain); 944 945 STACK_OF(X509) * 946 SSL_get0_verified_chain(const SSL *s) 947 { 948 if (s->s3 == NULL) 949 return NULL; 950 return s->s3->hs.verified_chain; 951 } 952 LSSL_ALIAS(SSL_get0_verified_chain); 953 954 /* 955 * Now in theory, since the calling process own 't' it should be safe to 956 * modify. We need to be able to read f without being hassled 957 */ 958 int 959 SSL_copy_session_id(SSL *t, const SSL *f) 960 { 961 SSL_CERT *tmp; 962 963 /* Do we need to do SSL locking? */ 964 if (!SSL_set_session(t, SSL_get_session(f))) 965 return 0; 966 967 /* What if we are set up for one protocol but want to talk another? */ 968 if (t->method != f->method) { 969 t->method->ssl_free(t); 970 t->method = f->method; 971 if (!t->method->ssl_new(t)) 972 return 0; 973 } 974 975 tmp = t->cert; 976 if (f->cert != NULL) { 977 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 978 t->cert = f->cert; 979 } else 980 t->cert = NULL; 981 ssl_cert_free(tmp); 982 983 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) 984 return 0; 985 986 return 1; 987 } 988 LSSL_ALIAS(SSL_copy_session_id); 989 990 /* Fix this so it checks all the valid key/cert options */ 991 int 992 SSL_CTX_check_private_key(const SSL_CTX *ctx) 993 { 994 if ((ctx == NULL) || (ctx->cert == NULL) || 995 (ctx->cert->key->x509 == NULL)) { 996 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED); 997 return (0); 998 } 999 if (ctx->cert->key->privatekey == NULL) { 1000 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED); 1001 return (0); 1002 } 1003 return (X509_check_private_key(ctx->cert->key->x509, 1004 ctx->cert->key->privatekey)); 1005 } 1006 LSSL_ALIAS(SSL_CTX_check_private_key); 1007 1008 /* Fix this function so that it takes an optional type parameter */ 1009 int 1010 SSL_check_private_key(const SSL *ssl) 1011 { 1012 if (ssl == NULL) { 1013 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); 1014 return (0); 1015 } 1016 if (ssl->cert == NULL) { 1017 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 1018 return (0); 1019 } 1020 if (ssl->cert->key->x509 == NULL) { 1021 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 1022 return (0); 1023 } 1024 if (ssl->cert->key->privatekey == NULL) { 1025 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 1026 return (0); 1027 } 1028 return (X509_check_private_key(ssl->cert->key->x509, 1029 ssl->cert->key->privatekey)); 1030 } 1031 LSSL_ALIAS(SSL_check_private_key); 1032 1033 int 1034 SSL_accept(SSL *s) 1035 { 1036 if (s->handshake_func == NULL) 1037 SSL_set_accept_state(s); /* Not properly initialized yet */ 1038 1039 return (s->method->ssl_accept(s)); 1040 } 1041 LSSL_ALIAS(SSL_accept); 1042 1043 int 1044 SSL_connect(SSL *s) 1045 { 1046 if (s->handshake_func == NULL) 1047 SSL_set_connect_state(s); /* Not properly initialized yet */ 1048 1049 return (s->method->ssl_connect(s)); 1050 } 1051 LSSL_ALIAS(SSL_connect); 1052 1053 int 1054 SSL_is_dtls(const SSL *s) 1055 { 1056 return s->method->dtls; 1057 } 1058 LSSL_ALIAS(SSL_is_dtls); 1059 1060 int 1061 SSL_is_server(const SSL *s) 1062 { 1063 return s->server; 1064 } 1065 LSSL_ALIAS(SSL_is_server); 1066 1067 static long 1068 ssl_get_default_timeout(void) 1069 { 1070 /* 1071 * 2 hours, the 24 hours mentioned in the TLSv1 spec 1072 * is way too long for http, the cache would over fill. 1073 */ 1074 return (2 * 60 * 60); 1075 } 1076 1077 long 1078 SSL_get_default_timeout(const SSL *s) 1079 { 1080 return (ssl_get_default_timeout()); 1081 } 1082 LSSL_ALIAS(SSL_get_default_timeout); 1083 1084 int 1085 SSL_read(SSL *s, void *buf, int num) 1086 { 1087 if (num < 0) { 1088 SSLerror(s, SSL_R_BAD_LENGTH); 1089 return -1; 1090 } 1091 1092 if (SSL_is_quic(s)) { 1093 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1094 return (-1); 1095 } 1096 1097 if (s->handshake_func == NULL) { 1098 SSLerror(s, SSL_R_UNINITIALIZED); 1099 return (-1); 1100 } 1101 1102 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 1103 s->rwstate = SSL_NOTHING; 1104 return (0); 1105 } 1106 return ssl3_read(s, buf, num); 1107 } 1108 LSSL_ALIAS(SSL_read); 1109 1110 int 1111 SSL_read_ex(SSL *s, void *buf, size_t num, size_t *bytes_read) 1112 { 1113 int ret; 1114 1115 /* We simply don't bother supporting enormous reads */ 1116 if (num > INT_MAX) { 1117 SSLerror(s, SSL_R_BAD_LENGTH); 1118 return 0; 1119 } 1120 1121 ret = SSL_read(s, buf, (int)num); 1122 if (ret < 0) 1123 ret = 0; 1124 *bytes_read = ret; 1125 1126 return ret > 0; 1127 } 1128 LSSL_ALIAS(SSL_read_ex); 1129 1130 int 1131 SSL_peek(SSL *s, void *buf, int num) 1132 { 1133 if (num < 0) { 1134 SSLerror(s, SSL_R_BAD_LENGTH); 1135 return -1; 1136 } 1137 1138 if (SSL_is_quic(s)) { 1139 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1140 return (-1); 1141 } 1142 1143 if (s->handshake_func == NULL) { 1144 SSLerror(s, SSL_R_UNINITIALIZED); 1145 return (-1); 1146 } 1147 1148 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 1149 return (0); 1150 } 1151 return ssl3_peek(s, buf, num); 1152 } 1153 LSSL_ALIAS(SSL_peek); 1154 1155 int 1156 SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *bytes_peeked) 1157 { 1158 int ret; 1159 1160 /* We simply don't bother supporting enormous peeks */ 1161 if (num > INT_MAX) { 1162 SSLerror(s, SSL_R_BAD_LENGTH); 1163 return 0; 1164 } 1165 1166 ret = SSL_peek(s, buf, (int)num); 1167 if (ret < 0) 1168 ret = 0; 1169 *bytes_peeked = ret; 1170 1171 return ret > 0; 1172 } 1173 LSSL_ALIAS(SSL_peek_ex); 1174 1175 int 1176 SSL_write(SSL *s, const void *buf, int num) 1177 { 1178 if (num < 0) { 1179 SSLerror(s, SSL_R_BAD_LENGTH); 1180 return -1; 1181 } 1182 1183 if (SSL_is_quic(s)) { 1184 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1185 return (-1); 1186 } 1187 1188 if (s->handshake_func == NULL) { 1189 SSLerror(s, SSL_R_UNINITIALIZED); 1190 return (-1); 1191 } 1192 1193 if (s->shutdown & SSL_SENT_SHUTDOWN) { 1194 s->rwstate = SSL_NOTHING; 1195 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 1196 return (-1); 1197 } 1198 return ssl3_write(s, buf, num); 1199 } 1200 LSSL_ALIAS(SSL_write); 1201 1202 int 1203 SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *bytes_written) 1204 { 1205 int ret; 1206 1207 /* We simply don't bother supporting enormous writes */ 1208 if (num > INT_MAX) { 1209 SSLerror(s, SSL_R_BAD_LENGTH); 1210 return 0; 1211 } 1212 1213 if (num == 0) { 1214 /* This API is special */ 1215 bytes_written = 0; 1216 return 1; 1217 } 1218 1219 ret = SSL_write(s, buf, (int)num); 1220 if (ret < 0) 1221 ret = 0; 1222 *bytes_written = ret; 1223 1224 return ret > 0; 1225 } 1226 LSSL_ALIAS(SSL_write_ex); 1227 1228 uint32_t 1229 SSL_CTX_get_max_early_data(const SSL_CTX *ctx) 1230 { 1231 return 0; 1232 } 1233 LSSL_ALIAS(SSL_CTX_get_max_early_data); 1234 1235 int 1236 SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) 1237 { 1238 return 1; 1239 } 1240 LSSL_ALIAS(SSL_CTX_set_max_early_data); 1241 1242 uint32_t 1243 SSL_get_max_early_data(const SSL *s) 1244 { 1245 return 0; 1246 } 1247 LSSL_ALIAS(SSL_get_max_early_data); 1248 1249 int 1250 SSL_set_max_early_data(SSL *s, uint32_t max_early_data) 1251 { 1252 return 1; 1253 } 1254 LSSL_ALIAS(SSL_set_max_early_data); 1255 1256 int 1257 SSL_get_early_data_status(const SSL *s) 1258 { 1259 return SSL_EARLY_DATA_REJECTED; 1260 } 1261 LSSL_ALIAS(SSL_get_early_data_status); 1262 1263 int 1264 SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) 1265 { 1266 *readbytes = 0; 1267 1268 if (!s->server) { 1269 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1270 return SSL_READ_EARLY_DATA_ERROR; 1271 } 1272 1273 return SSL_READ_EARLY_DATA_FINISH; 1274 } 1275 LSSL_ALIAS(SSL_read_early_data); 1276 1277 int 1278 SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) 1279 { 1280 *written = 0; 1281 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1282 return 0; 1283 } 1284 LSSL_ALIAS(SSL_write_early_data); 1285 1286 int 1287 SSL_shutdown(SSL *s) 1288 { 1289 /* 1290 * Note that this function behaves differently from what one might 1291 * expect. Return values are 0 for no success (yet), 1292 * 1 for success; but calling it once is usually not enough, 1293 * even if blocking I/O is used (see ssl3_shutdown). 1294 */ 1295 1296 if (s->handshake_func == NULL) { 1297 SSLerror(s, SSL_R_UNINITIALIZED); 1298 return (-1); 1299 } 1300 1301 if (s != NULL && !SSL_in_init(s)) 1302 return (s->method->ssl_shutdown(s)); 1303 1304 return (1); 1305 } 1306 LSSL_ALIAS(SSL_shutdown); 1307 1308 int 1309 SSL_renegotiate(SSL *s) 1310 { 1311 if (s->renegotiate == 0) 1312 s->renegotiate = 1; 1313 1314 s->new_session = 1; 1315 1316 return (s->method->ssl_renegotiate(s)); 1317 } 1318 LSSL_ALIAS(SSL_renegotiate); 1319 1320 int 1321 SSL_renegotiate_abbreviated(SSL *s) 1322 { 1323 if (s->renegotiate == 0) 1324 s->renegotiate = 1; 1325 1326 s->new_session = 0; 1327 1328 return (s->method->ssl_renegotiate(s)); 1329 } 1330 LSSL_ALIAS(SSL_renegotiate_abbreviated); 1331 1332 int 1333 SSL_renegotiate_pending(SSL *s) 1334 { 1335 /* 1336 * Becomes true when negotiation is requested; 1337 * false again once a handshake has finished. 1338 */ 1339 return (s->renegotiate != 0); 1340 } 1341 LSSL_ALIAS(SSL_renegotiate_pending); 1342 1343 long 1344 SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1345 { 1346 long l; 1347 1348 switch (cmd) { 1349 case SSL_CTRL_GET_READ_AHEAD: 1350 return (s->read_ahead); 1351 case SSL_CTRL_SET_READ_AHEAD: 1352 l = s->read_ahead; 1353 s->read_ahead = larg; 1354 return (l); 1355 1356 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1357 s->msg_callback_arg = parg; 1358 return (1); 1359 1360 case SSL_CTRL_OPTIONS: 1361 return (s->options|=larg); 1362 case SSL_CTRL_CLEAR_OPTIONS: 1363 return (s->options&=~larg); 1364 case SSL_CTRL_MODE: 1365 return (s->mode|=larg); 1366 case SSL_CTRL_CLEAR_MODE: 1367 return (s->mode &=~larg); 1368 case SSL_CTRL_GET_MAX_CERT_LIST: 1369 return (s->max_cert_list); 1370 case SSL_CTRL_SET_MAX_CERT_LIST: 1371 l = s->max_cert_list; 1372 s->max_cert_list = larg; 1373 return (l); 1374 case SSL_CTRL_SET_MTU: 1375 if (larg < (long)dtls1_min_mtu()) 1376 return (0); 1377 if (SSL_is_dtls(s)) { 1378 s->d1->mtu = larg; 1379 return (larg); 1380 } 1381 return (0); 1382 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1383 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1384 return (0); 1385 s->max_send_fragment = larg; 1386 return (1); 1387 case SSL_CTRL_GET_RI_SUPPORT: 1388 if (s->s3) 1389 return (s->s3->send_connection_binding); 1390 else return (0); 1391 default: 1392 if (SSL_is_dtls(s)) 1393 return dtls1_ctrl(s, cmd, larg, parg); 1394 return ssl3_ctrl(s, cmd, larg, parg); 1395 } 1396 } 1397 LSSL_ALIAS(SSL_ctrl); 1398 1399 long 1400 SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1401 { 1402 switch (cmd) { 1403 case SSL_CTRL_SET_MSG_CALLBACK: 1404 s->msg_callback = (ssl_msg_callback_fn *)(fp); 1405 return (1); 1406 1407 default: 1408 return (ssl3_callback_ctrl(s, cmd, fp)); 1409 } 1410 } 1411 LSSL_ALIAS(SSL_callback_ctrl); 1412 1413 struct lhash_st_SSL_SESSION * 1414 SSL_CTX_sessions(SSL_CTX *ctx) 1415 { 1416 return (ctx->sessions); 1417 } 1418 LSSL_ALIAS(SSL_CTX_sessions); 1419 1420 long 1421 SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1422 { 1423 long l; 1424 1425 switch (cmd) { 1426 case SSL_CTRL_GET_READ_AHEAD: 1427 return (ctx->read_ahead); 1428 case SSL_CTRL_SET_READ_AHEAD: 1429 l = ctx->read_ahead; 1430 ctx->read_ahead = larg; 1431 return (l); 1432 1433 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1434 ctx->msg_callback_arg = parg; 1435 return (1); 1436 1437 case SSL_CTRL_GET_MAX_CERT_LIST: 1438 return (ctx->max_cert_list); 1439 case SSL_CTRL_SET_MAX_CERT_LIST: 1440 l = ctx->max_cert_list; 1441 ctx->max_cert_list = larg; 1442 return (l); 1443 1444 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1445 l = ctx->session_cache_size; 1446 ctx->session_cache_size = larg; 1447 return (l); 1448 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1449 return (ctx->session_cache_size); 1450 case SSL_CTRL_SET_SESS_CACHE_MODE: 1451 l = ctx->session_cache_mode; 1452 ctx->session_cache_mode = larg; 1453 return (l); 1454 case SSL_CTRL_GET_SESS_CACHE_MODE: 1455 return (ctx->session_cache_mode); 1456 1457 case SSL_CTRL_SESS_NUMBER: 1458 return (lh_SSL_SESSION_num_items(ctx->sessions)); 1459 case SSL_CTRL_SESS_CONNECT: 1460 return (ctx->stats.sess_connect); 1461 case SSL_CTRL_SESS_CONNECT_GOOD: 1462 return (ctx->stats.sess_connect_good); 1463 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1464 return (ctx->stats.sess_connect_renegotiate); 1465 case SSL_CTRL_SESS_ACCEPT: 1466 return (ctx->stats.sess_accept); 1467 case SSL_CTRL_SESS_ACCEPT_GOOD: 1468 return (ctx->stats.sess_accept_good); 1469 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1470 return (ctx->stats.sess_accept_renegotiate); 1471 case SSL_CTRL_SESS_HIT: 1472 return (ctx->stats.sess_hit); 1473 case SSL_CTRL_SESS_CB_HIT: 1474 return (ctx->stats.sess_cb_hit); 1475 case SSL_CTRL_SESS_MISSES: 1476 return (ctx->stats.sess_miss); 1477 case SSL_CTRL_SESS_TIMEOUTS: 1478 return (ctx->stats.sess_timeout); 1479 case SSL_CTRL_SESS_CACHE_FULL: 1480 return (ctx->stats.sess_cache_full); 1481 case SSL_CTRL_OPTIONS: 1482 return (ctx->options|=larg); 1483 case SSL_CTRL_CLEAR_OPTIONS: 1484 return (ctx->options&=~larg); 1485 case SSL_CTRL_MODE: 1486 return (ctx->mode|=larg); 1487 case SSL_CTRL_CLEAR_MODE: 1488 return (ctx->mode&=~larg); 1489 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1490 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1491 return (0); 1492 ctx->max_send_fragment = larg; 1493 return (1); 1494 default: 1495 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1496 } 1497 } 1498 LSSL_ALIAS(SSL_CTX_ctrl); 1499 1500 long 1501 SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1502 { 1503 switch (cmd) { 1504 case SSL_CTRL_SET_MSG_CALLBACK: 1505 ctx->msg_callback = (ssl_msg_callback_fn *)fp; 1506 return (1); 1507 1508 default: 1509 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1510 } 1511 } 1512 LSSL_ALIAS(SSL_CTX_callback_ctrl); 1513 1514 STACK_OF(SSL_CIPHER) * 1515 SSL_get_ciphers(const SSL *s) 1516 { 1517 if (s == NULL) 1518 return (NULL); 1519 if (s->cipher_list != NULL) 1520 return (s->cipher_list); 1521 1522 return (s->ctx->cipher_list); 1523 } 1524 LSSL_ALIAS(SSL_get_ciphers); 1525 1526 STACK_OF(SSL_CIPHER) * 1527 SSL_get_client_ciphers(const SSL *s) 1528 { 1529 if (s == NULL || !s->server) 1530 return NULL; 1531 return s->s3->hs.client_ciphers; 1532 } 1533 LSSL_ALIAS(SSL_get_client_ciphers); 1534 1535 STACK_OF(SSL_CIPHER) * 1536 SSL_get1_supported_ciphers(SSL *s) 1537 { 1538 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers; 1539 SSL_CIPHER *cipher; 1540 uint16_t min_vers, max_vers; 1541 int i; 1542 1543 if (s == NULL) 1544 return NULL; 1545 if (!ssl_supported_tls_version_range(s, &min_vers, &max_vers)) 1546 return NULL; 1547 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1548 return NULL; 1549 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL) 1550 return NULL; 1551 1552 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1553 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL) 1554 goto err; 1555 if (!ssl_cipher_allowed_in_tls_version_range(cipher, min_vers, 1556 max_vers)) 1557 continue; 1558 if (!ssl_security_supported_cipher(s, cipher)) 1559 continue; 1560 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher)) 1561 goto err; 1562 } 1563 1564 if (sk_SSL_CIPHER_num(supported_ciphers) > 0) 1565 return supported_ciphers; 1566 1567 err: 1568 sk_SSL_CIPHER_free(supported_ciphers); 1569 return NULL; 1570 } 1571 LSSL_ALIAS(SSL_get1_supported_ciphers); 1572 1573 /* See if we have any ECC cipher suites. */ 1574 int 1575 ssl_has_ecc_ciphers(SSL *s) 1576 { 1577 STACK_OF(SSL_CIPHER) *ciphers; 1578 unsigned long alg_k, alg_a; 1579 SSL_CIPHER *cipher; 1580 int i; 1581 1582 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1583 return 0; 1584 1585 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1586 cipher = sk_SSL_CIPHER_value(ciphers, i); 1587 1588 alg_k = cipher->algorithm_mkey; 1589 alg_a = cipher->algorithm_auth; 1590 1591 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1592 return 1; 1593 } 1594 1595 return 0; 1596 } 1597 1598 /* The old interface to get the same thing as SSL_get_ciphers(). */ 1599 const char * 1600 SSL_get_cipher_list(const SSL *s, int n) 1601 { 1602 STACK_OF(SSL_CIPHER) *ciphers; 1603 const SSL_CIPHER *cipher; 1604 1605 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1606 return (NULL); 1607 if ((cipher = sk_SSL_CIPHER_value(ciphers, n)) == NULL) 1608 return (NULL); 1609 1610 return (cipher->name); 1611 } 1612 LSSL_ALIAS(SSL_get_cipher_list); 1613 1614 STACK_OF(SSL_CIPHER) * 1615 SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1616 { 1617 if (ctx == NULL) 1618 return NULL; 1619 return ctx->cipher_list; 1620 } 1621 LSSL_ALIAS(SSL_CTX_get_ciphers); 1622 1623 /* Specify the ciphers to be used by default by the SSL_CTX. */ 1624 int 1625 SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1626 { 1627 STACK_OF(SSL_CIPHER) *ciphers; 1628 1629 /* 1630 * ssl_create_cipher_list may return an empty stack if it was unable to 1631 * find a cipher matching the given rule string (for example if the 1632 * rule string specifies a cipher which has been disabled). This is not 1633 * an error as far as ssl_create_cipher_list is concerned, and hence 1634 * ctx->cipher_list has been updated. 1635 */ 1636 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1637 ctx->cipher_list_tls13, str, ctx->cert); 1638 if (ciphers == NULL) { 1639 return (0); 1640 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1641 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1642 return (0); 1643 } 1644 return (1); 1645 } 1646 LSSL_ALIAS(SSL_CTX_set_cipher_list); 1647 1648 int 1649 SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str) 1650 { 1651 if (!ssl_parse_ciphersuites(&ctx->cipher_list_tls13, str)) { 1652 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1653 return 0; 1654 } 1655 if (!ssl_merge_cipherlists(ctx->cipher_list, 1656 ctx->cipher_list_tls13, &ctx->cipher_list)) 1657 return 0; 1658 1659 return 1; 1660 } 1661 LSSL_ALIAS(SSL_CTX_set_ciphersuites); 1662 1663 /* Specify the ciphers to be used by the SSL. */ 1664 int 1665 SSL_set_cipher_list(SSL *s, const char *str) 1666 { 1667 STACK_OF(SSL_CIPHER) *ciphers, *ciphers_tls13; 1668 1669 if ((ciphers_tls13 = s->cipher_list_tls13) == NULL) 1670 ciphers_tls13 = s->ctx->cipher_list_tls13; 1671 1672 /* See comment in SSL_CTX_set_cipher_list. */ 1673 ciphers = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1674 ciphers_tls13, str, s->cert); 1675 if (ciphers == NULL) { 1676 return (0); 1677 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1678 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1679 return (0); 1680 } 1681 return (1); 1682 } 1683 LSSL_ALIAS(SSL_set_cipher_list); 1684 1685 int 1686 SSL_set_ciphersuites(SSL *s, const char *str) 1687 { 1688 STACK_OF(SSL_CIPHER) *ciphers; 1689 1690 if ((ciphers = s->cipher_list) == NULL) 1691 ciphers = s->ctx->cipher_list; 1692 1693 if (!ssl_parse_ciphersuites(&s->cipher_list_tls13, str)) { 1694 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1695 return (0); 1696 } 1697 if (!ssl_merge_cipherlists(ciphers, s->cipher_list_tls13, 1698 &s->cipher_list)) 1699 return 0; 1700 1701 return 1; 1702 } 1703 LSSL_ALIAS(SSL_set_ciphersuites); 1704 1705 char * 1706 SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1707 { 1708 STACK_OF(SSL_CIPHER) *client_ciphers, *server_ciphers; 1709 const SSL_CIPHER *cipher; 1710 size_t curlen = 0; 1711 char *end; 1712 int i; 1713 1714 if (!s->server || len < 2) 1715 return NULL; 1716 1717 if ((client_ciphers = s->s3->hs.client_ciphers) == NULL) 1718 return NULL; 1719 if ((server_ciphers = SSL_get_ciphers(s)) == NULL) 1720 return NULL; 1721 if (sk_SSL_CIPHER_num(client_ciphers) == 0 || 1722 sk_SSL_CIPHER_num(server_ciphers) == 0) 1723 return NULL; 1724 1725 buf[0] = '\0'; 1726 for (i = 0; i < sk_SSL_CIPHER_num(client_ciphers); i++) { 1727 cipher = sk_SSL_CIPHER_value(client_ciphers, i); 1728 1729 if (sk_SSL_CIPHER_find(server_ciphers, cipher) < 0) 1730 continue; 1731 1732 end = buf + curlen; 1733 if (strlcat(buf, cipher->name, len) >= len || 1734 (curlen = strlcat(buf, ":", len)) >= len) { 1735 /* remove truncated cipher from list */ 1736 *end = '\0'; 1737 break; 1738 } 1739 } 1740 /* remove trailing colon */ 1741 if ((end = strrchr(buf, ':')) != NULL) 1742 *end = '\0'; 1743 return buf; 1744 } 1745 LSSL_ALIAS(SSL_get_shared_ciphers); 1746 1747 /* 1748 * Return a servername extension value if provided in Client Hello, or NULL. 1749 * So far, only host_name types are defined (RFC 3546). 1750 */ 1751 const char * 1752 SSL_get_servername(const SSL *s, const int type) 1753 { 1754 if (type != TLSEXT_NAMETYPE_host_name) 1755 return (NULL); 1756 1757 return (s->session && !s->tlsext_hostname ? 1758 s->session->tlsext_hostname : 1759 s->tlsext_hostname); 1760 } 1761 LSSL_ALIAS(SSL_get_servername); 1762 1763 int 1764 SSL_get_servername_type(const SSL *s) 1765 { 1766 if (s->session && 1767 (!s->tlsext_hostname ? 1768 s->session->tlsext_hostname : s->tlsext_hostname)) 1769 return (TLSEXT_NAMETYPE_host_name); 1770 return (-1); 1771 } 1772 LSSL_ALIAS(SSL_get_servername_type); 1773 1774 /* 1775 * SSL_select_next_proto implements standard protocol selection. It is 1776 * expected that this function is called from the callback set by 1777 * SSL_CTX_set_alpn_select_cb. 1778 * 1779 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1780 * strings. The length byte itself is not included in the length. A byte 1781 * string of length 0 is invalid. No byte string may be truncated. 1782 * 1783 * It returns either: 1784 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1785 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1786 * 1787 * XXX - the out argument points into server_list or client_list and should 1788 * therefore really be const. We can't fix that without breaking the callers. 1789 */ 1790 int 1791 SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1792 const unsigned char *peer_list, unsigned int peer_list_len, 1793 const unsigned char *supported_list, unsigned int supported_list_len) 1794 { 1795 CBS peer, peer_proto, supported, supported_proto; 1796 1797 *out = NULL; 1798 *outlen = 0; 1799 1800 /* First check that the supported list is well-formed. */ 1801 CBS_init(&supported, supported_list, supported_list_len); 1802 if (!tlsext_alpn_check_format(&supported)) 1803 goto err; 1804 1805 /* 1806 * Use first supported protocol as fallback. This is one way of doing 1807 * NPN's "opportunistic" protocol selection (see security considerations 1808 * in draft-agl-tls-nextprotoneg-04), and it is the documented behavior 1809 * of this API. For ALPN it's the callback's responsibility to fail on 1810 * OPENSSL_NPN_NO_OVERLAP. 1811 */ 1812 1813 if (!CBS_get_u8_length_prefixed(&supported, &supported_proto)) 1814 goto err; 1815 1816 *out = (unsigned char *)CBS_data(&supported_proto); 1817 *outlen = CBS_len(&supported_proto); 1818 1819 /* Now check that the peer list is well-formed. */ 1820 CBS_init(&peer, peer_list, peer_list_len); 1821 if (!tlsext_alpn_check_format(&peer)) 1822 goto err; 1823 1824 /* 1825 * Walk the peer list and select the first protocol that appears in 1826 * the supported list. Thus we honor peer preference rather than local 1827 * preference contrary to a SHOULD in RFC 7301, section 3.2. 1828 */ 1829 while (CBS_len(&peer) > 0) { 1830 if (!CBS_get_u8_length_prefixed(&peer, &peer_proto)) 1831 goto err; 1832 1833 CBS_init(&supported, supported_list, supported_list_len); 1834 1835 while (CBS_len(&supported) > 0) { 1836 if (!CBS_get_u8_length_prefixed(&supported, 1837 &supported_proto)) 1838 goto err; 1839 1840 if (CBS_mem_equal(&supported_proto, 1841 CBS_data(&peer_proto), CBS_len(&peer_proto))) { 1842 *out = (unsigned char *)CBS_data(&peer_proto); 1843 *outlen = CBS_len(&peer_proto); 1844 1845 return OPENSSL_NPN_NEGOTIATED; 1846 } 1847 } 1848 } 1849 1850 err: 1851 return OPENSSL_NPN_NO_OVERLAP; 1852 } 1853 LSSL_ALIAS(SSL_select_next_proto); 1854 1855 /* SSL_get0_next_proto_negotiated is deprecated. */ 1856 void 1857 SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1858 unsigned int *len) 1859 { 1860 *data = NULL; 1861 *len = 0; 1862 } 1863 LSSL_ALIAS(SSL_get0_next_proto_negotiated); 1864 1865 /* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1866 void 1867 SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1868 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1869 { 1870 } 1871 LSSL_ALIAS(SSL_CTX_set_next_protos_advertised_cb); 1872 1873 /* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1874 void 1875 SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1876 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1877 unsigned int inlen, void *arg), void *arg) 1878 { 1879 } 1880 LSSL_ALIAS(SSL_CTX_set_next_proto_select_cb); 1881 1882 /* 1883 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1884 * protocols, which must be in wire-format (i.e. a series of non-empty, 1885 * 8-bit length-prefixed strings). Returns 0 on success. 1886 */ 1887 int 1888 SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1889 unsigned int protos_len) 1890 { 1891 CBS cbs; 1892 int failed = 1; 1893 1894 if (protos == NULL) 1895 protos_len = 0; 1896 1897 CBS_init(&cbs, protos, protos_len); 1898 1899 if (protos_len > 0) { 1900 if (!tlsext_alpn_check_format(&cbs)) 1901 goto err; 1902 } 1903 1904 if (!CBS_stow(&cbs, &ctx->alpn_client_proto_list, 1905 &ctx->alpn_client_proto_list_len)) 1906 goto err; 1907 1908 failed = 0; 1909 1910 err: 1911 /* NOTE: Return values are the reverse of what you expect. */ 1912 return failed; 1913 } 1914 LSSL_ALIAS(SSL_CTX_set_alpn_protos); 1915 1916 /* 1917 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1918 * protocols, which must be in wire-format (i.e. a series of non-empty, 1919 * 8-bit length-prefixed strings). Returns 0 on success. 1920 */ 1921 int 1922 SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1923 unsigned int protos_len) 1924 { 1925 CBS cbs; 1926 int failed = 1; 1927 1928 if (protos == NULL) 1929 protos_len = 0; 1930 1931 CBS_init(&cbs, protos, protos_len); 1932 1933 if (protos_len > 0) { 1934 if (!tlsext_alpn_check_format(&cbs)) 1935 goto err; 1936 } 1937 1938 if (!CBS_stow(&cbs, &ssl->alpn_client_proto_list, 1939 &ssl->alpn_client_proto_list_len)) 1940 goto err; 1941 1942 failed = 0; 1943 1944 err: 1945 /* NOTE: Return values are the reverse of what you expect. */ 1946 return failed; 1947 } 1948 LSSL_ALIAS(SSL_set_alpn_protos); 1949 1950 /* 1951 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1952 * ClientHello processing in order to select an ALPN protocol from the 1953 * client's list of offered protocols. 1954 */ 1955 void 1956 SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1957 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1958 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1959 { 1960 ctx->alpn_select_cb = cb; 1961 ctx->alpn_select_cb_arg = arg; 1962 } 1963 LSSL_ALIAS(SSL_CTX_set_alpn_select_cb); 1964 1965 /* 1966 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1967 * it sets data to point to len bytes of protocol name (not including the 1968 * leading length-prefix byte). If the server didn't respond with* a negotiated 1969 * protocol then len will be zero. 1970 */ 1971 void 1972 SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1973 unsigned int *len) 1974 { 1975 *data = ssl->s3->alpn_selected; 1976 *len = ssl->s3->alpn_selected_len; 1977 } 1978 LSSL_ALIAS(SSL_get0_alpn_selected); 1979 1980 void 1981 SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb) 1982 { 1983 return; 1984 } 1985 LSSL_ALIAS(SSL_set_psk_use_session_callback); 1986 1987 int 1988 SSL_export_keying_material(SSL *s, unsigned char *out, size_t out_len, 1989 const char *label, size_t label_len, const unsigned char *context, 1990 size_t context_len, int use_context) 1991 { 1992 if (s->tls13 != NULL && s->version == TLS1_3_VERSION) { 1993 if (!use_context) { 1994 context = NULL; 1995 context_len = 0; 1996 } 1997 return tls13_exporter(s->tls13, label, label_len, context, 1998 context_len, out, out_len); 1999 } 2000 2001 return tls12_exporter(s, label, label_len, context, context_len, 2002 use_context, out, out_len); 2003 } 2004 LSSL_ALIAS(SSL_export_keying_material); 2005 2006 static unsigned long 2007 ssl_session_hash(const SSL_SESSION *a) 2008 { 2009 unsigned long l; 2010 2011 l = (unsigned long) 2012 ((unsigned int) a->session_id[0] )| 2013 ((unsigned int) a->session_id[1]<< 8L)| 2014 ((unsigned long)a->session_id[2]<<16L)| 2015 ((unsigned long)a->session_id[3]<<24L); 2016 return (l); 2017 } 2018 2019 /* 2020 * NB: If this function (or indeed the hash function which uses a sort of 2021 * coarser function than this one) is changed, ensure 2022 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 2023 * able to construct an SSL_SESSION that will collide with any existing session 2024 * with a matching session ID. 2025 */ 2026 static int 2027 ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 2028 { 2029 if (a->ssl_version != b->ssl_version) 2030 return (1); 2031 if (a->session_id_length != b->session_id_length) 2032 return (1); 2033 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 2034 return (1); 2035 return (0); 2036 } 2037 2038 /* 2039 * These wrapper functions should remain rather than redeclaring 2040 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 2041 * variable. The reason is that the functions aren't static, they're exposed via 2042 * ssl.h. 2043 */ 2044 static unsigned long 2045 ssl_session_LHASH_HASH(const void *arg) 2046 { 2047 const SSL_SESSION *a = arg; 2048 2049 return ssl_session_hash(a); 2050 } 2051 2052 static int 2053 ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 2054 { 2055 const SSL_SESSION *a = arg1; 2056 const SSL_SESSION *b = arg2; 2057 2058 return ssl_session_cmp(a, b); 2059 } 2060 2061 SSL_CTX * 2062 SSL_CTX_new(const SSL_METHOD *meth) 2063 { 2064 SSL_CTX *ret; 2065 2066 if (!OPENSSL_init_ssl(0, NULL)) { 2067 SSLerrorx(SSL_R_LIBRARY_BUG); 2068 return (NULL); 2069 } 2070 2071 if (meth == NULL) { 2072 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 2073 return (NULL); 2074 } 2075 2076 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 2077 SSLerrorx(ERR_R_MALLOC_FAILURE); 2078 return (NULL); 2079 } 2080 2081 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 2082 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 2083 goto err; 2084 } 2085 2086 ret->method = meth; 2087 ret->min_tls_version = meth->min_tls_version; 2088 ret->max_tls_version = meth->max_tls_version; 2089 ret->min_proto_version = 0; 2090 ret->max_proto_version = 0; 2091 ret->mode = SSL_MODE_AUTO_RETRY; 2092 2093 ret->cert_store = NULL; 2094 ret->session_cache_mode = SSL_SESS_CACHE_SERVER; 2095 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 2096 ret->session_cache_head = NULL; 2097 ret->session_cache_tail = NULL; 2098 2099 /* We take the system default */ 2100 ret->session_timeout = ssl_get_default_timeout(); 2101 2102 ret->new_session_cb = NULL; 2103 ret->remove_session_cb = NULL; 2104 ret->get_session_cb = NULL; 2105 ret->generate_session_id = NULL; 2106 2107 memset((char *)&ret->stats, 0, sizeof(ret->stats)); 2108 2109 ret->references = 1; 2110 ret->quiet_shutdown = 0; 2111 2112 ret->info_callback = NULL; 2113 2114 ret->app_verify_callback = NULL; 2115 ret->app_verify_arg = NULL; 2116 2117 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 2118 ret->read_ahead = 0; 2119 ret->msg_callback = NULL; 2120 ret->msg_callback_arg = NULL; 2121 ret->verify_mode = SSL_VERIFY_NONE; 2122 ret->sid_ctx_length = 0; 2123 ret->default_verify_callback = NULL; 2124 2125 if ((ret->cert = ssl_cert_new()) == NULL) 2126 goto err; 2127 2128 ret->default_passwd_callback = NULL; 2129 ret->default_passwd_callback_userdata = NULL; 2130 ret->client_cert_cb = NULL; 2131 ret->app_gen_cookie_cb = NULL; 2132 ret->app_verify_cookie_cb = NULL; 2133 2134 ret->sessions = lh_SSL_SESSION_new(); 2135 if (ret->sessions == NULL) 2136 goto err; 2137 ret->cert_store = X509_STORE_new(); 2138 if (ret->cert_store == NULL) 2139 goto err; 2140 2141 ssl_create_cipher_list(ret->method, &ret->cipher_list, 2142 NULL, SSL_DEFAULT_CIPHER_LIST, ret->cert); 2143 if (ret->cipher_list == NULL || 2144 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 2145 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 2146 goto err2; 2147 } 2148 2149 ret->param = X509_VERIFY_PARAM_new(); 2150 if (!ret->param) 2151 goto err; 2152 2153 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) 2154 goto err; 2155 2156 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 2157 2158 ret->extra_certs = NULL; 2159 2160 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 2161 2162 ret->tlsext_servername_callback = 0; 2163 ret->tlsext_servername_arg = NULL; 2164 2165 /* Setup RFC4507 ticket keys */ 2166 arc4random_buf(ret->tlsext_tick_key_name, 16); 2167 arc4random_buf(ret->tlsext_tick_hmac_key, 16); 2168 arc4random_buf(ret->tlsext_tick_aes_key, 16); 2169 2170 ret->tlsext_status_cb = 0; 2171 ret->tlsext_status_arg = NULL; 2172 2173 /* 2174 * Default is to connect to non-RI servers. When RI is more widely 2175 * deployed might change this. 2176 */ 2177 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; 2178 2179 return (ret); 2180 err: 2181 SSLerrorx(ERR_R_MALLOC_FAILURE); 2182 err2: 2183 SSL_CTX_free(ret); 2184 return (NULL); 2185 } 2186 LSSL_ALIAS(SSL_CTX_new); 2187 2188 void 2189 SSL_CTX_free(SSL_CTX *ctx) 2190 { 2191 int i; 2192 2193 if (ctx == NULL) 2194 return; 2195 2196 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 2197 if (i > 0) 2198 return; 2199 2200 X509_VERIFY_PARAM_free(ctx->param); 2201 2202 /* 2203 * Free internal session cache. However: the remove_cb() may reference 2204 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 2205 * after the sessions were flushed. 2206 * As the ex_data handling routines might also touch the session cache, 2207 * the most secure solution seems to be: empty (flush) the cache, then 2208 * free ex_data, then finally free the cache. 2209 * (See ticket [openssl.org #212].) 2210 */ 2211 if (ctx->sessions != NULL) 2212 SSL_CTX_flush_sessions(ctx, 0); 2213 2214 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->ex_data); 2215 2216 lh_SSL_SESSION_free(ctx->sessions); 2217 2218 X509_STORE_free(ctx->cert_store); 2219 sk_SSL_CIPHER_free(ctx->cipher_list); 2220 sk_SSL_CIPHER_free(ctx->cipher_list_tls13); 2221 ssl_cert_free(ctx->cert); 2222 sk_X509_NAME_pop_free(ctx->client_CA, X509_NAME_free); 2223 sk_X509_pop_free(ctx->extra_certs, X509_free); 2224 2225 #ifndef OPENSSL_NO_SRTP 2226 if (ctx->srtp_profiles) 2227 sk_SRTP_PROTECTION_PROFILE_free(ctx->srtp_profiles); 2228 #endif 2229 2230 free(ctx->tlsext_ecpointformatlist); 2231 free(ctx->tlsext_supportedgroups); 2232 2233 free(ctx->alpn_client_proto_list); 2234 2235 free(ctx); 2236 } 2237 LSSL_ALIAS(SSL_CTX_free); 2238 2239 int 2240 SSL_CTX_up_ref(SSL_CTX *ctx) 2241 { 2242 return CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX) > 1; 2243 } 2244 LSSL_ALIAS(SSL_CTX_up_ref); 2245 2246 pem_password_cb * 2247 SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 2248 { 2249 return (ctx->default_passwd_callback); 2250 } 2251 LSSL_ALIAS(SSL_CTX_get_default_passwd_cb); 2252 2253 void 2254 SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 2255 { 2256 ctx->default_passwd_callback = cb; 2257 } 2258 LSSL_ALIAS(SSL_CTX_set_default_passwd_cb); 2259 2260 void * 2261 SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 2262 { 2263 return ctx->default_passwd_callback_userdata; 2264 } 2265 LSSL_ALIAS(SSL_CTX_get_default_passwd_cb_userdata); 2266 2267 void 2268 SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 2269 { 2270 ctx->default_passwd_callback_userdata = u; 2271 } 2272 LSSL_ALIAS(SSL_CTX_set_default_passwd_cb_userdata); 2273 2274 void 2275 SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, 2276 int (*cb)(X509_STORE_CTX *, void *), void *arg) 2277 { 2278 ctx->app_verify_callback = cb; 2279 ctx->app_verify_arg = arg; 2280 } 2281 LSSL_ALIAS(SSL_CTX_set_cert_verify_callback); 2282 2283 void 2284 SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 2285 { 2286 ctx->verify_mode = mode; 2287 ctx->default_verify_callback = cb; 2288 } 2289 LSSL_ALIAS(SSL_CTX_set_verify); 2290 2291 void 2292 SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 2293 { 2294 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 2295 } 2296 LSSL_ALIAS(SSL_CTX_set_verify_depth); 2297 2298 void 2299 ssl_set_cert_masks(SSL_CERT *c, const SSL_CIPHER *cipher) 2300 { 2301 unsigned long mask_a, mask_k; 2302 SSL_CERT_PKEY *cpk; 2303 2304 if (c == NULL) 2305 return; 2306 2307 mask_a = SSL_aNULL | SSL_aTLS1_3; 2308 mask_k = SSL_kECDHE | SSL_kTLS1_3; 2309 2310 if (c->dhe_params != NULL || c->dhe_params_cb != NULL || 2311 c->dhe_params_auto != 0) 2312 mask_k |= SSL_kDHE; 2313 2314 cpk = &(c->pkeys[SSL_PKEY_ECC]); 2315 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2316 /* Key usage, if present, must allow signing. */ 2317 if (X509_get_key_usage(cpk->x509) & X509v3_KU_DIGITAL_SIGNATURE) 2318 mask_a |= SSL_aECDSA; 2319 } 2320 2321 cpk = &(c->pkeys[SSL_PKEY_RSA]); 2322 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2323 mask_a |= SSL_aRSA; 2324 mask_k |= SSL_kRSA; 2325 } 2326 2327 c->mask_k = mask_k; 2328 c->mask_a = mask_a; 2329 c->valid = 1; 2330 } 2331 2332 /* See if this handshake is using an ECC cipher suite. */ 2333 int 2334 ssl_using_ecc_cipher(SSL *s) 2335 { 2336 unsigned long alg_a, alg_k; 2337 2338 alg_a = s->s3->hs.cipher->algorithm_auth; 2339 alg_k = s->s3->hs.cipher->algorithm_mkey; 2340 2341 return s->session->tlsext_ecpointformatlist != NULL && 2342 s->session->tlsext_ecpointformatlist_length > 0 && 2343 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 2344 } 2345 2346 int 2347 ssl_check_srvr_ecc_cert_and_alg(SSL *s, X509 *x) 2348 { 2349 const SSL_CIPHER *cs = s->s3->hs.cipher; 2350 unsigned long alg_a; 2351 2352 alg_a = cs->algorithm_auth; 2353 2354 if (alg_a & SSL_aECDSA) { 2355 /* Key usage, if present, must allow signing. */ 2356 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { 2357 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2358 return (0); 2359 } 2360 } 2361 2362 return (1); 2363 } 2364 2365 SSL_CERT_PKEY * 2366 ssl_get_server_send_pkey(const SSL *s) 2367 { 2368 unsigned long alg_a; 2369 SSL_CERT *c; 2370 int i; 2371 2372 c = s->cert; 2373 ssl_set_cert_masks(c, s->s3->hs.cipher); 2374 2375 alg_a = s->s3->hs.cipher->algorithm_auth; 2376 2377 if (alg_a & SSL_aECDSA) { 2378 i = SSL_PKEY_ECC; 2379 } else if (alg_a & SSL_aRSA) { 2380 i = SSL_PKEY_RSA; 2381 } else { /* if (alg_a & SSL_aNULL) */ 2382 SSLerror(s, ERR_R_INTERNAL_ERROR); 2383 return (NULL); 2384 } 2385 2386 return (c->pkeys + i); 2387 } 2388 2389 EVP_PKEY * 2390 ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2391 const struct ssl_sigalg **sap) 2392 { 2393 const struct ssl_sigalg *sigalg = NULL; 2394 EVP_PKEY *pkey = NULL; 2395 unsigned long alg_a; 2396 SSL_CERT *c; 2397 int idx = -1; 2398 2399 alg_a = cipher->algorithm_auth; 2400 c = s->cert; 2401 2402 if (alg_a & SSL_aRSA) { 2403 idx = SSL_PKEY_RSA; 2404 } else if ((alg_a & SSL_aECDSA) && 2405 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2406 idx = SSL_PKEY_ECC; 2407 if (idx == -1) { 2408 SSLerror(s, ERR_R_INTERNAL_ERROR); 2409 return (NULL); 2410 } 2411 2412 pkey = c->pkeys[idx].privatekey; 2413 if ((sigalg = ssl_sigalg_select(s, pkey)) == NULL) { 2414 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2415 return (NULL); 2416 } 2417 *pmd = sigalg->md(); 2418 *sap = sigalg; 2419 2420 return (pkey); 2421 } 2422 2423 size_t 2424 ssl_dhe_params_auto_key_bits(SSL *s) 2425 { 2426 SSL_CERT_PKEY *cpk; 2427 int key_bits; 2428 2429 if (s->cert->dhe_params_auto == 2) { 2430 key_bits = 1024; 2431 } else if (s->s3->hs.cipher->algorithm_auth & SSL_aNULL) { 2432 key_bits = 1024; 2433 if (s->s3->hs.cipher->strength_bits == 256) 2434 key_bits = 3072; 2435 } else { 2436 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2437 return 0; 2438 if (cpk->privatekey == NULL || 2439 EVP_PKEY_get0_RSA(cpk->privatekey) == NULL) 2440 return 0; 2441 if ((key_bits = EVP_PKEY_bits(cpk->privatekey)) <= 0) 2442 return 0; 2443 } 2444 2445 return key_bits; 2446 } 2447 2448 static int 2449 ssl_should_update_external_cache(SSL *s, int mode) 2450 { 2451 int cache_mode; 2452 2453 cache_mode = s->session_ctx->session_cache_mode; 2454 2455 /* Don't cache if mode says not to */ 2456 if ((cache_mode & mode) == 0) 2457 return 0; 2458 2459 /* if it is not already cached, cache it */ 2460 if (!s->hit) 2461 return 1; 2462 2463 /* If it's TLS 1.3, do it to match OpenSSL */ 2464 if (s->s3->hs.negotiated_tls_version >= TLS1_3_VERSION) 2465 return 1; 2466 2467 return 0; 2468 } 2469 2470 static int 2471 ssl_should_update_internal_cache(SSL *s, int mode) 2472 { 2473 int cache_mode; 2474 2475 cache_mode = s->session_ctx->session_cache_mode; 2476 2477 /* Don't cache if mode says not to */ 2478 if ((cache_mode & mode) == 0) 2479 return 0; 2480 2481 /* If it is already cached, don't cache it again */ 2482 if (s->hit) 2483 return 0; 2484 2485 if ((cache_mode & SSL_SESS_CACHE_NO_INTERNAL_STORE) != 0) 2486 return 0; 2487 2488 /* If we are lesser than TLS 1.3, Cache it. */ 2489 if (s->s3->hs.negotiated_tls_version < TLS1_3_VERSION) 2490 return 1; 2491 2492 /* Below this we consider TLS 1.3 or later */ 2493 2494 /* If it's not a server, add it? OpenSSL does this. */ 2495 if (!s->server) 2496 return 1; 2497 2498 /* XXX if we support early data / PSK need to add */ 2499 2500 /* 2501 * If we have the remove session callback, we will want 2502 * to know about this even if it's a stateless ticket 2503 * from 1.3 so we can know when it is removed. 2504 */ 2505 if (s->session_ctx->remove_session_cb != NULL) 2506 return 1; 2507 2508 /* If we have set OP_NO_TICKET, cache it. */ 2509 if ((s->options & SSL_OP_NO_TICKET) != 0) 2510 return 1; 2511 2512 /* Otherwise do not cache */ 2513 return 0; 2514 } 2515 2516 void 2517 ssl_update_cache(SSL *s, int mode) 2518 { 2519 int cache_mode, do_callback; 2520 2521 if (s->session->session_id_length == 0) 2522 return; 2523 2524 cache_mode = s->session_ctx->session_cache_mode; 2525 do_callback = ssl_should_update_external_cache(s, mode); 2526 2527 if (ssl_should_update_internal_cache(s, mode)) { 2528 /* 2529 * XXX should we fail if the add to the internal cache 2530 * fails? OpenSSL doesn't care.. 2531 */ 2532 (void) SSL_CTX_add_session(s->session_ctx, s->session); 2533 } 2534 2535 /* 2536 * Update the "external cache" by calling the new session 2537 * callback if present, even with TLS 1.3 without early data 2538 * "because some application just want to know about the 2539 * creation of a session and aren't doing a full cache". 2540 * Apparently, if they are doing a full cache, they'll have 2541 * some fun, but we endeavour to give application writers the 2542 * same glorious experience they expect from OpenSSL which 2543 * does it this way. 2544 */ 2545 if (do_callback && s->session_ctx->new_session_cb != NULL) { 2546 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2547 if (!s->session_ctx->new_session_cb(s, s->session)) 2548 SSL_SESSION_free(s->session); 2549 } 2550 2551 /* Auto flush every 255 connections. */ 2552 if (!(cache_mode & SSL_SESS_CACHE_NO_AUTO_CLEAR) && 2553 (cache_mode & mode) != 0) { 2554 int connections; 2555 if (mode & SSL_SESS_CACHE_CLIENT) 2556 connections = s->session_ctx->stats.sess_connect_good; 2557 else 2558 connections = s->session_ctx->stats.sess_accept_good; 2559 if ((connections & 0xff) == 0xff) 2560 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2561 } 2562 } 2563 2564 const SSL_METHOD * 2565 SSL_get_ssl_method(SSL *s) 2566 { 2567 return (s->method); 2568 } 2569 LSSL_ALIAS(SSL_get_ssl_method); 2570 2571 int 2572 SSL_set_ssl_method(SSL *s, const SSL_METHOD *method) 2573 { 2574 int (*handshake_func)(SSL *) = NULL; 2575 int ret = 1; 2576 2577 if (s->method == method) 2578 return (ret); 2579 2580 if (s->handshake_func == s->method->ssl_connect) 2581 handshake_func = method->ssl_connect; 2582 else if (s->handshake_func == s->method->ssl_accept) 2583 handshake_func = method->ssl_accept; 2584 2585 if (s->method->version == method->version) { 2586 s->method = method; 2587 } else { 2588 s->method->ssl_free(s); 2589 s->method = method; 2590 ret = s->method->ssl_new(s); 2591 } 2592 s->handshake_func = handshake_func; 2593 2594 return (ret); 2595 } 2596 LSSL_ALIAS(SSL_set_ssl_method); 2597 2598 int 2599 SSL_get_error(const SSL *s, int i) 2600 { 2601 unsigned long l; 2602 int reason; 2603 BIO *bio; 2604 2605 if (i > 0) 2606 return (SSL_ERROR_NONE); 2607 2608 /* 2609 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2610 * etc, where we do encode the error. 2611 */ 2612 if ((l = ERR_peek_error()) != 0) { 2613 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2614 return (SSL_ERROR_SYSCALL); 2615 else 2616 return (SSL_ERROR_SSL); 2617 } 2618 2619 if (SSL_want_read(s)) { 2620 bio = SSL_get_rbio(s); 2621 if (BIO_should_read(bio)) { 2622 return (SSL_ERROR_WANT_READ); 2623 } else if (BIO_should_write(bio)) { 2624 /* 2625 * This one doesn't make too much sense... We never 2626 * try to write to the rbio, and an application 2627 * program where rbio and wbio are separate couldn't 2628 * even know what it should wait for. However if we 2629 * ever set s->rwstate incorrectly (so that we have 2630 * SSL_want_read(s) instead of SSL_want_write(s)) 2631 * and rbio and wbio *are* the same, this test works 2632 * around that bug; so it might be safer to keep it. 2633 */ 2634 return (SSL_ERROR_WANT_WRITE); 2635 } else if (BIO_should_io_special(bio)) { 2636 reason = BIO_get_retry_reason(bio); 2637 if (reason == BIO_RR_CONNECT) 2638 return (SSL_ERROR_WANT_CONNECT); 2639 else if (reason == BIO_RR_ACCEPT) 2640 return (SSL_ERROR_WANT_ACCEPT); 2641 else 2642 return (SSL_ERROR_SYSCALL); /* unknown */ 2643 } 2644 } 2645 2646 if (SSL_want_write(s)) { 2647 bio = SSL_get_wbio(s); 2648 if (BIO_should_write(bio)) { 2649 return (SSL_ERROR_WANT_WRITE); 2650 } else if (BIO_should_read(bio)) { 2651 /* 2652 * See above (SSL_want_read(s) with 2653 * BIO_should_write(bio)) 2654 */ 2655 return (SSL_ERROR_WANT_READ); 2656 } else if (BIO_should_io_special(bio)) { 2657 reason = BIO_get_retry_reason(bio); 2658 if (reason == BIO_RR_CONNECT) 2659 return (SSL_ERROR_WANT_CONNECT); 2660 else if (reason == BIO_RR_ACCEPT) 2661 return (SSL_ERROR_WANT_ACCEPT); 2662 else 2663 return (SSL_ERROR_SYSCALL); 2664 } 2665 } 2666 2667 if (SSL_want_x509_lookup(s)) 2668 return (SSL_ERROR_WANT_X509_LOOKUP); 2669 2670 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2671 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2672 return (SSL_ERROR_ZERO_RETURN); 2673 2674 return (SSL_ERROR_SYSCALL); 2675 } 2676 LSSL_ALIAS(SSL_get_error); 2677 2678 int 2679 SSL_CTX_set_quic_method(SSL_CTX *ctx, const SSL_QUIC_METHOD *quic_method) 2680 { 2681 if (ctx->method->dtls) 2682 return 0; 2683 2684 ctx->quic_method = quic_method; 2685 2686 return 1; 2687 } 2688 LSSL_ALIAS(SSL_CTX_set_quic_method); 2689 2690 int 2691 SSL_set_quic_method(SSL *ssl, const SSL_QUIC_METHOD *quic_method) 2692 { 2693 if (ssl->method->dtls) 2694 return 0; 2695 2696 ssl->quic_method = quic_method; 2697 2698 return 1; 2699 } 2700 LSSL_ALIAS(SSL_set_quic_method); 2701 2702 size_t 2703 SSL_quic_max_handshake_flight_len(const SSL *ssl, 2704 enum ssl_encryption_level_t level) 2705 { 2706 size_t flight_len; 2707 2708 /* Limit flights to 16K when there are no large certificate messages. */ 2709 flight_len = 16384; 2710 2711 switch (level) { 2712 case ssl_encryption_initial: 2713 return flight_len; 2714 2715 case ssl_encryption_early_data: 2716 /* QUIC does not send EndOfEarlyData. */ 2717 return 0; 2718 2719 case ssl_encryption_handshake: 2720 if (ssl->server) { 2721 /* 2722 * Servers may receive Certificate message if configured 2723 * to request client certificates. 2724 */ 2725 if ((SSL_get_verify_mode(ssl) & SSL_VERIFY_PEER) != 0 && 2726 ssl->max_cert_list > flight_len) 2727 flight_len = ssl->max_cert_list; 2728 } else { 2729 /* 2730 * Clients may receive both Certificate message and a 2731 * CertificateRequest message. 2732 */ 2733 if (ssl->max_cert_list * 2 > flight_len) 2734 flight_len = ssl->max_cert_list * 2; 2735 } 2736 return flight_len; 2737 case ssl_encryption_application: 2738 /* 2739 * Note there is not actually a bound on the number of 2740 * NewSessionTickets one may send in a row. This level may need 2741 * more involved flow control. 2742 */ 2743 return flight_len; 2744 } 2745 2746 return 0; 2747 } 2748 LSSL_ALIAS(SSL_quic_max_handshake_flight_len); 2749 2750 enum ssl_encryption_level_t 2751 SSL_quic_read_level(const SSL *ssl) 2752 { 2753 return ssl->s3->hs.tls13.quic_read_level; 2754 } 2755 LSSL_ALIAS(SSL_quic_read_level); 2756 2757 enum ssl_encryption_level_t 2758 SSL_quic_write_level(const SSL *ssl) 2759 { 2760 return ssl->s3->hs.tls13.quic_write_level; 2761 } 2762 LSSL_ALIAS(SSL_quic_write_level); 2763 2764 int 2765 SSL_provide_quic_data(SSL *ssl, enum ssl_encryption_level_t level, 2766 const uint8_t *data, size_t len) 2767 { 2768 if (!SSL_is_quic(ssl)) { 2769 SSLerror(ssl, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2770 return 0; 2771 } 2772 2773 if (level != SSL_quic_read_level(ssl)) { 2774 SSLerror(ssl, SSL_R_WRONG_ENCRYPTION_LEVEL_RECEIVED); 2775 return 0; 2776 } 2777 2778 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) { 2779 ssl->s3->hs.tls13.quic_read_buffer = tls_buffer_new(0); 2780 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) { 2781 SSLerror(ssl, ERR_R_MALLOC_FAILURE); 2782 return 0; 2783 } 2784 } 2785 2786 /* XXX - note that this does not currently downsize. */ 2787 tls_buffer_set_capacity_limit(ssl->s3->hs.tls13.quic_read_buffer, 2788 SSL_quic_max_handshake_flight_len(ssl, level)); 2789 2790 /* 2791 * XXX - an append that fails due to exceeding capacity should set 2792 * SSL_R_EXCESSIVE_MESSAGE_SIZE. 2793 */ 2794 return tls_buffer_append(ssl->s3->hs.tls13.quic_read_buffer, data, len); 2795 } 2796 LSSL_ALIAS(SSL_provide_quic_data); 2797 2798 int 2799 SSL_process_quic_post_handshake(SSL *ssl) 2800 { 2801 /* XXX - this needs to run PHH received. */ 2802 return 1; 2803 } 2804 LSSL_ALIAS(SSL_process_quic_post_handshake); 2805 2806 int 2807 SSL_do_handshake(SSL *s) 2808 { 2809 if (s->handshake_func == NULL) { 2810 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2811 return (-1); 2812 } 2813 2814 s->method->ssl_renegotiate_check(s); 2815 2816 if (!SSL_in_init(s) && !SSL_in_before(s)) 2817 return 1; 2818 2819 return s->handshake_func(s); 2820 } 2821 LSSL_ALIAS(SSL_do_handshake); 2822 2823 /* 2824 * For the next 2 functions, SSL_clear() sets shutdown and so 2825 * one of these calls will reset it 2826 */ 2827 void 2828 SSL_set_accept_state(SSL *s) 2829 { 2830 s->server = 1; 2831 s->shutdown = 0; 2832 s->s3->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2833 s->handshake_func = s->method->ssl_accept; 2834 ssl_clear_cipher_state(s); 2835 } 2836 LSSL_ALIAS(SSL_set_accept_state); 2837 2838 void 2839 SSL_set_connect_state(SSL *s) 2840 { 2841 s->server = 0; 2842 s->shutdown = 0; 2843 s->s3->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2844 s->handshake_func = s->method->ssl_connect; 2845 ssl_clear_cipher_state(s); 2846 } 2847 LSSL_ALIAS(SSL_set_connect_state); 2848 2849 int 2850 ssl_undefined_function(SSL *s) 2851 { 2852 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2853 return (0); 2854 } 2855 2856 int 2857 ssl_undefined_void_function(void) 2858 { 2859 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2860 return (0); 2861 } 2862 2863 int 2864 ssl_undefined_const_function(const SSL *s) 2865 { 2866 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2867 return (0); 2868 } 2869 2870 const char * 2871 ssl_version_string(int ver) 2872 { 2873 switch (ver) { 2874 case TLS1_VERSION: 2875 return (SSL_TXT_TLSV1); 2876 case TLS1_1_VERSION: 2877 return (SSL_TXT_TLSV1_1); 2878 case TLS1_2_VERSION: 2879 return (SSL_TXT_TLSV1_2); 2880 case TLS1_3_VERSION: 2881 return (SSL_TXT_TLSV1_3); 2882 case DTLS1_VERSION: 2883 return (SSL_TXT_DTLS1); 2884 case DTLS1_2_VERSION: 2885 return (SSL_TXT_DTLS1_2); 2886 default: 2887 return ("unknown"); 2888 } 2889 } 2890 2891 const char * 2892 SSL_get_version(const SSL *s) 2893 { 2894 return ssl_version_string(s->version); 2895 } 2896 LSSL_ALIAS(SSL_get_version); 2897 2898 SSL * 2899 SSL_dup(SSL *s) 2900 { 2901 STACK_OF(X509_NAME) *sk; 2902 X509_NAME *xn; 2903 SSL *ret; 2904 int i; 2905 2906 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2907 goto err; 2908 2909 ret->version = s->version; 2910 ret->method = s->method; 2911 2912 if (s->session != NULL) { 2913 if (!SSL_copy_session_id(ret, s)) 2914 goto err; 2915 } else { 2916 /* 2917 * No session has been established yet, so we have to expect 2918 * that s->cert or ret->cert will be changed later -- 2919 * they should not both point to the same object, 2920 * and thus we can't use SSL_copy_session_id. 2921 */ 2922 2923 ret->method->ssl_free(ret); 2924 ret->method = s->method; 2925 ret->method->ssl_new(ret); 2926 2927 ssl_cert_free(ret->cert); 2928 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2929 goto err; 2930 2931 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2932 s->sid_ctx_length)) 2933 goto err; 2934 } 2935 2936 ret->options = s->options; 2937 ret->mode = s->mode; 2938 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2939 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2940 ret->msg_callback = s->msg_callback; 2941 ret->msg_callback_arg = s->msg_callback_arg; 2942 SSL_set_verify(ret, SSL_get_verify_mode(s), 2943 SSL_get_verify_callback(s)); 2944 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2945 ret->generate_session_id = s->generate_session_id; 2946 2947 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2948 2949 /* copy app data, a little dangerous perhaps */ 2950 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2951 &ret->ex_data, &s->ex_data)) 2952 goto err; 2953 2954 /* setup rbio, and wbio */ 2955 if (s->rbio != NULL) { 2956 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2957 goto err; 2958 } 2959 if (s->wbio != NULL) { 2960 if (s->wbio != s->rbio) { 2961 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2962 goto err; 2963 } else 2964 ret->wbio = ret->rbio; 2965 } 2966 ret->rwstate = s->rwstate; 2967 ret->in_handshake = s->in_handshake; 2968 ret->handshake_func = s->handshake_func; 2969 ret->server = s->server; 2970 ret->renegotiate = s->renegotiate; 2971 ret->new_session = s->new_session; 2972 ret->quiet_shutdown = s->quiet_shutdown; 2973 ret->shutdown = s->shutdown; 2974 /* SSL_dup does not really work at any state, though */ 2975 ret->s3->hs.state = s->s3->hs.state; 2976 ret->rstate = s->rstate; 2977 2978 /* 2979 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2980 * ret->init_off 2981 */ 2982 ret->init_num = 0; 2983 2984 ret->hit = s->hit; 2985 2986 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2987 2988 if (s->cipher_list != NULL) { 2989 if ((ret->cipher_list = 2990 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2991 goto err; 2992 } 2993 if (s->cipher_list_tls13 != NULL) { 2994 if ((ret->cipher_list_tls13 = 2995 sk_SSL_CIPHER_dup(s->cipher_list_tls13)) == NULL) 2996 goto err; 2997 } 2998 2999 /* Dup the client_CA list */ 3000 if (s->client_CA != NULL) { 3001 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 3002 ret->client_CA = sk; 3003 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 3004 xn = sk_X509_NAME_value(sk, i); 3005 if (sk_X509_NAME_set(sk, i, 3006 X509_NAME_dup(xn)) == NULL) { 3007 X509_NAME_free(xn); 3008 goto err; 3009 } 3010 } 3011 } 3012 3013 return ret; 3014 err: 3015 SSL_free(ret); 3016 return NULL; 3017 } 3018 LSSL_ALIAS(SSL_dup); 3019 3020 void 3021 ssl_clear_cipher_state(SSL *s) 3022 { 3023 tls12_record_layer_clear_read_state(s->rl); 3024 tls12_record_layer_clear_write_state(s->rl); 3025 } 3026 3027 void 3028 ssl_info_callback(const SSL *s, int type, int value) 3029 { 3030 ssl_info_callback_fn *cb; 3031 3032 if ((cb = s->info_callback) == NULL) 3033 cb = s->ctx->info_callback; 3034 if (cb != NULL) 3035 cb(s, type, value); 3036 } 3037 3038 void 3039 ssl_msg_callback(SSL *s, int is_write, int content_type, 3040 const void *msg_buf, size_t msg_len) 3041 { 3042 if (s->msg_callback == NULL) 3043 return; 3044 3045 s->msg_callback(is_write, s->version, content_type, 3046 msg_buf, msg_len, s, s->msg_callback_arg); 3047 } 3048 3049 void 3050 ssl_msg_callback_cbs(SSL *s, int is_write, int content_type, CBS *cbs) 3051 { 3052 ssl_msg_callback(s, is_write, content_type, CBS_data(cbs), CBS_len(cbs)); 3053 } 3054 3055 /* Fix this function so that it takes an optional type parameter */ 3056 X509 * 3057 SSL_get_certificate(const SSL *s) 3058 { 3059 return (s->cert->key->x509); 3060 } 3061 LSSL_ALIAS(SSL_get_certificate); 3062 3063 /* Fix this function so that it takes an optional type parameter */ 3064 EVP_PKEY * 3065 SSL_get_privatekey(const SSL *s) 3066 { 3067 return (s->cert->key->privatekey); 3068 } 3069 LSSL_ALIAS(SSL_get_privatekey); 3070 3071 const SSL_CIPHER * 3072 SSL_get_current_cipher(const SSL *s) 3073 { 3074 return s->s3->hs.cipher; 3075 } 3076 LSSL_ALIAS(SSL_get_current_cipher); 3077 3078 const void * 3079 SSL_get_current_compression(SSL *s) 3080 { 3081 return (NULL); 3082 } 3083 LSSL_ALIAS(SSL_get_current_compression); 3084 3085 const void * 3086 SSL_get_current_expansion(SSL *s) 3087 { 3088 return (NULL); 3089 } 3090 LSSL_ALIAS(SSL_get_current_expansion); 3091 3092 size_t 3093 SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 3094 { 3095 size_t len = sizeof(s->s3->client_random); 3096 3097 if (out == NULL) 3098 return len; 3099 3100 if (len > max_out) 3101 len = max_out; 3102 3103 memcpy(out, s->s3->client_random, len); 3104 3105 return len; 3106 } 3107 LSSL_ALIAS(SSL_get_client_random); 3108 3109 size_t 3110 SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 3111 { 3112 size_t len = sizeof(s->s3->server_random); 3113 3114 if (out == NULL) 3115 return len; 3116 3117 if (len > max_out) 3118 len = max_out; 3119 3120 memcpy(out, s->s3->server_random, len); 3121 3122 return len; 3123 } 3124 LSSL_ALIAS(SSL_get_server_random); 3125 3126 int 3127 ssl_init_wbio_buffer(SSL *s, int push) 3128 { 3129 BIO *bbio; 3130 3131 if (s->bbio == NULL) { 3132 bbio = BIO_new(BIO_f_buffer()); 3133 if (bbio == NULL) 3134 return (0); 3135 s->bbio = bbio; 3136 } else { 3137 bbio = s->bbio; 3138 if (s->bbio == s->wbio) 3139 s->wbio = BIO_pop(s->wbio); 3140 } 3141 (void)BIO_reset(bbio); 3142 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 3143 if (!BIO_set_read_buffer_size(bbio, 1)) { 3144 SSLerror(s, ERR_R_BUF_LIB); 3145 return (0); 3146 } 3147 if (push) { 3148 if (s->wbio != bbio) 3149 s->wbio = BIO_push(bbio, s->wbio); 3150 } else { 3151 if (s->wbio == bbio) 3152 s->wbio = BIO_pop(bbio); 3153 } 3154 return (1); 3155 } 3156 3157 void 3158 ssl_free_wbio_buffer(SSL *s) 3159 { 3160 if (s == NULL) 3161 return; 3162 3163 if (s->bbio == NULL) 3164 return; 3165 3166 if (s->bbio == s->wbio) { 3167 /* remove buffering */ 3168 s->wbio = BIO_pop(s->wbio); 3169 } 3170 BIO_free(s->bbio); 3171 s->bbio = NULL; 3172 } 3173 3174 void 3175 SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 3176 { 3177 ctx->quiet_shutdown = mode; 3178 } 3179 LSSL_ALIAS(SSL_CTX_set_quiet_shutdown); 3180 3181 int 3182 SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 3183 { 3184 return (ctx->quiet_shutdown); 3185 } 3186 LSSL_ALIAS(SSL_CTX_get_quiet_shutdown); 3187 3188 void 3189 SSL_set_quiet_shutdown(SSL *s, int mode) 3190 { 3191 s->quiet_shutdown = mode; 3192 } 3193 LSSL_ALIAS(SSL_set_quiet_shutdown); 3194 3195 int 3196 SSL_get_quiet_shutdown(const SSL *s) 3197 { 3198 return (s->quiet_shutdown); 3199 } 3200 LSSL_ALIAS(SSL_get_quiet_shutdown); 3201 3202 void 3203 SSL_set_shutdown(SSL *s, int mode) 3204 { 3205 s->shutdown = mode; 3206 } 3207 LSSL_ALIAS(SSL_set_shutdown); 3208 3209 int 3210 SSL_get_shutdown(const SSL *s) 3211 { 3212 return (s->shutdown); 3213 } 3214 LSSL_ALIAS(SSL_get_shutdown); 3215 3216 int 3217 SSL_version(const SSL *s) 3218 { 3219 return (s->version); 3220 } 3221 LSSL_ALIAS(SSL_version); 3222 3223 SSL_CTX * 3224 SSL_get_SSL_CTX(const SSL *ssl) 3225 { 3226 return (ssl->ctx); 3227 } 3228 LSSL_ALIAS(SSL_get_SSL_CTX); 3229 3230 SSL_CTX * 3231 SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 3232 { 3233 SSL_CERT *new_cert; 3234 3235 if (ctx == NULL) 3236 ctx = ssl->initial_ctx; 3237 if (ssl->ctx == ctx) 3238 return (ssl->ctx); 3239 3240 if ((new_cert = ssl_cert_dup(ctx->cert)) == NULL) 3241 return NULL; 3242 ssl_cert_free(ssl->cert); 3243 ssl->cert = new_cert; 3244 3245 SSL_CTX_up_ref(ctx); 3246 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 3247 ssl->ctx = ctx; 3248 3249 return (ssl->ctx); 3250 } 3251 LSSL_ALIAS(SSL_set_SSL_CTX); 3252 3253 int 3254 SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 3255 { 3256 return (X509_STORE_set_default_paths(ctx->cert_store)); 3257 } 3258 LSSL_ALIAS(SSL_CTX_set_default_verify_paths); 3259 3260 int 3261 SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 3262 const char *CApath) 3263 { 3264 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 3265 } 3266 LSSL_ALIAS(SSL_CTX_load_verify_locations); 3267 3268 int 3269 SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 3270 { 3271 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 3272 } 3273 LSSL_ALIAS(SSL_CTX_load_verify_mem); 3274 3275 void 3276 SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 3277 { 3278 ssl->info_callback = cb; 3279 } 3280 LSSL_ALIAS(SSL_set_info_callback); 3281 3282 void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 3283 { 3284 return (ssl->info_callback); 3285 } 3286 LSSL_ALIAS(SSL_get_info_callback); 3287 3288 int 3289 SSL_state(const SSL *ssl) 3290 { 3291 return (ssl->s3->hs.state); 3292 } 3293 LSSL_ALIAS(SSL_state); 3294 3295 void 3296 SSL_set_state(SSL *ssl, int state) 3297 { 3298 ssl->s3->hs.state = state; 3299 } 3300 LSSL_ALIAS(SSL_set_state); 3301 3302 void 3303 SSL_set_verify_result(SSL *ssl, long arg) 3304 { 3305 ssl->verify_result = arg; 3306 } 3307 LSSL_ALIAS(SSL_set_verify_result); 3308 3309 long 3310 SSL_get_verify_result(const SSL *ssl) 3311 { 3312 return (ssl->verify_result); 3313 } 3314 LSSL_ALIAS(SSL_get_verify_result); 3315 3316 int 3317 SSL_verify_client_post_handshake(SSL *ssl) 3318 { 3319 return 0; 3320 } 3321 LSSL_ALIAS(SSL_verify_client_post_handshake); 3322 3323 void 3324 SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val) 3325 { 3326 return; 3327 } 3328 LSSL_ALIAS(SSL_CTX_set_post_handshake_auth); 3329 3330 void 3331 SSL_set_post_handshake_auth(SSL *ssl, int val) 3332 { 3333 return; 3334 } 3335 LSSL_ALIAS(SSL_set_post_handshake_auth); 3336 3337 int 3338 SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3339 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3340 { 3341 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 3342 new_func, dup_func, free_func)); 3343 } 3344 LSSL_ALIAS(SSL_get_ex_new_index); 3345 3346 int 3347 SSL_set_ex_data(SSL *s, int idx, void *arg) 3348 { 3349 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3350 } 3351 LSSL_ALIAS(SSL_set_ex_data); 3352 3353 void * 3354 SSL_get_ex_data(const SSL *s, int idx) 3355 { 3356 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3357 } 3358 LSSL_ALIAS(SSL_get_ex_data); 3359 3360 int 3361 SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3362 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3363 { 3364 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 3365 new_func, dup_func, free_func)); 3366 } 3367 LSSL_ALIAS(SSL_CTX_get_ex_new_index); 3368 3369 int 3370 SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 3371 { 3372 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3373 } 3374 LSSL_ALIAS(SSL_CTX_set_ex_data); 3375 3376 void * 3377 SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 3378 { 3379 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3380 } 3381 LSSL_ALIAS(SSL_CTX_get_ex_data); 3382 3383 int 3384 ssl_ok(SSL *s) 3385 { 3386 return (1); 3387 } 3388 3389 X509_STORE * 3390 SSL_CTX_get_cert_store(const SSL_CTX *ctx) 3391 { 3392 return (ctx->cert_store); 3393 } 3394 LSSL_ALIAS(SSL_CTX_get_cert_store); 3395 3396 void 3397 SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 3398 { 3399 X509_STORE_free(ctx->cert_store); 3400 ctx->cert_store = store; 3401 } 3402 LSSL_ALIAS(SSL_CTX_set_cert_store); 3403 3404 void 3405 SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store) 3406 { 3407 if (store != NULL) 3408 X509_STORE_up_ref(store); 3409 3410 SSL_CTX_set_cert_store(ctx, store); 3411 } 3412 LSSL_ALIAS(SSL_CTX_set1_cert_store); 3413 3414 X509 * 3415 SSL_CTX_get0_certificate(const SSL_CTX *ctx) 3416 { 3417 if (ctx->cert == NULL) 3418 return NULL; 3419 3420 return ctx->cert->key->x509; 3421 } 3422 LSSL_ALIAS(SSL_CTX_get0_certificate); 3423 3424 EVP_PKEY * 3425 SSL_CTX_get0_privatekey(const SSL_CTX *ctx) 3426 { 3427 if (ctx->cert == NULL) 3428 return NULL; 3429 3430 return ctx->cert->key->privatekey; 3431 } 3432 LSSL_ALIAS(SSL_CTX_get0_privatekey); 3433 3434 int 3435 SSL_want(const SSL *s) 3436 { 3437 return (s->rwstate); 3438 } 3439 LSSL_ALIAS(SSL_want); 3440 3441 void 3442 SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 3443 int keylength)) 3444 { 3445 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3446 } 3447 LSSL_ALIAS(SSL_CTX_set_tmp_rsa_callback); 3448 3449 void 3450 SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 3451 int keylength)) 3452 { 3453 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3454 } 3455 LSSL_ALIAS(SSL_set_tmp_rsa_callback); 3456 3457 void 3458 SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 3459 int keylength)) 3460 { 3461 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3462 } 3463 LSSL_ALIAS(SSL_CTX_set_tmp_dh_callback); 3464 3465 void 3466 SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 3467 int keylength)) 3468 { 3469 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3470 } 3471 LSSL_ALIAS(SSL_set_tmp_dh_callback); 3472 3473 void 3474 SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 3475 int is_export, int keylength)) 3476 { 3477 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 3478 (void (*)(void))ecdh); 3479 } 3480 LSSL_ALIAS(SSL_CTX_set_tmp_ecdh_callback); 3481 3482 void 3483 SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 3484 int keylength)) 3485 { 3486 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 3487 } 3488 LSSL_ALIAS(SSL_set_tmp_ecdh_callback); 3489 3490 3491 void 3492 SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 3493 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3494 { 3495 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 3496 (void (*)(void))cb); 3497 } 3498 LSSL_ALIAS(SSL_CTX_set_msg_callback); 3499 3500 void 3501 SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 3502 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3503 { 3504 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3505 } 3506 LSSL_ALIAS(SSL_set_msg_callback); 3507 3508 int 3509 SSL_cache_hit(SSL *s) 3510 { 3511 return (s->hit); 3512 } 3513 LSSL_ALIAS(SSL_cache_hit); 3514 3515 int 3516 SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 3517 { 3518 return ctx->min_proto_version; 3519 } 3520 LSSL_ALIAS(SSL_CTX_get_min_proto_version); 3521 3522 int 3523 SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 3524 { 3525 return ssl_version_set_min(ctx->method, version, 3526 ctx->max_tls_version, &ctx->min_tls_version, 3527 &ctx->min_proto_version); 3528 } 3529 LSSL_ALIAS(SSL_CTX_set_min_proto_version); 3530 3531 int 3532 SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 3533 { 3534 return ctx->max_proto_version; 3535 } 3536 LSSL_ALIAS(SSL_CTX_get_max_proto_version); 3537 3538 int 3539 SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 3540 { 3541 return ssl_version_set_max(ctx->method, version, 3542 ctx->min_tls_version, &ctx->max_tls_version, 3543 &ctx->max_proto_version); 3544 } 3545 LSSL_ALIAS(SSL_CTX_set_max_proto_version); 3546 3547 int 3548 SSL_get_min_proto_version(SSL *ssl) 3549 { 3550 return ssl->min_proto_version; 3551 } 3552 LSSL_ALIAS(SSL_get_min_proto_version); 3553 3554 int 3555 SSL_set_min_proto_version(SSL *ssl, uint16_t version) 3556 { 3557 return ssl_version_set_min(ssl->method, version, 3558 ssl->max_tls_version, &ssl->min_tls_version, 3559 &ssl->min_proto_version); 3560 } 3561 LSSL_ALIAS(SSL_set_min_proto_version); 3562 int 3563 SSL_get_max_proto_version(SSL *ssl) 3564 { 3565 return ssl->max_proto_version; 3566 } 3567 LSSL_ALIAS(SSL_get_max_proto_version); 3568 3569 int 3570 SSL_set_max_proto_version(SSL *ssl, uint16_t version) 3571 { 3572 return ssl_version_set_max(ssl->method, version, 3573 ssl->min_tls_version, &ssl->max_tls_version, 3574 &ssl->max_proto_version); 3575 } 3576 LSSL_ALIAS(SSL_set_max_proto_version); 3577 3578 const SSL_METHOD * 3579 SSL_CTX_get_ssl_method(const SSL_CTX *ctx) 3580 { 3581 return ctx->method; 3582 } 3583 LSSL_ALIAS(SSL_CTX_get_ssl_method); 3584 3585 int 3586 SSL_CTX_get_security_level(const SSL_CTX *ctx) 3587 { 3588 return ctx->cert->security_level; 3589 } 3590 LSSL_ALIAS(SSL_CTX_get_security_level); 3591 3592 void 3593 SSL_CTX_set_security_level(SSL_CTX *ctx, int level) 3594 { 3595 ctx->cert->security_level = level; 3596 } 3597 LSSL_ALIAS(SSL_CTX_set_security_level); 3598 3599 int 3600 SSL_get_security_level(const SSL *ssl) 3601 { 3602 return ssl->cert->security_level; 3603 } 3604 LSSL_ALIAS(SSL_get_security_level); 3605 3606 void 3607 SSL_set_security_level(SSL *ssl, int level) 3608 { 3609 ssl->cert->security_level = level; 3610 } 3611 LSSL_ALIAS(SSL_set_security_level); 3612 3613 int 3614 SSL_is_quic(const SSL *ssl) 3615 { 3616 return ssl->quic_method != NULL; 3617 } 3618 LSSL_ALIAS(SSL_is_quic); 3619 3620 int 3621 SSL_set_quic_transport_params(SSL *ssl, const uint8_t *params, 3622 size_t params_len) 3623 { 3624 freezero(ssl->quic_transport_params, 3625 ssl->quic_transport_params_len); 3626 ssl->quic_transport_params = NULL; 3627 ssl->quic_transport_params_len = 0; 3628 3629 if ((ssl->quic_transport_params = malloc(params_len)) == NULL) 3630 return 0; 3631 3632 memcpy(ssl->quic_transport_params, params, params_len); 3633 ssl->quic_transport_params_len = params_len; 3634 3635 return 1; 3636 } 3637 LSSL_ALIAS(SSL_set_quic_transport_params); 3638 3639 void 3640 SSL_get_peer_quic_transport_params(const SSL *ssl, const uint8_t **out_params, 3641 size_t *out_params_len) 3642 { 3643 *out_params = ssl->s3->peer_quic_transport_params; 3644 *out_params_len = ssl->s3->peer_quic_transport_params_len; 3645 } 3646 LSSL_ALIAS(SSL_get_peer_quic_transport_params); 3647 3648 void 3649 SSL_set_quic_use_legacy_codepoint(SSL *ssl, int use_legacy) 3650 { 3651 /* Not supported. */ 3652 } 3653 LSSL_ALIAS(SSL_set_quic_use_legacy_codepoint); 3654