ssl_lib.c revision 1.231
1/* $OpenBSD: ssl_lib.c,v 1.231 2020/09/19 10:05:00 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 <stdio.h> 148 149#include "ssl_locl.h" 150 151#include <openssl/bn.h> 152#include <openssl/dh.h> 153#include <openssl/lhash.h> 154#include <openssl/objects.h> 155#include <openssl/ocsp.h> 156#include <openssl/x509v3.h> 157 158#ifndef OPENSSL_NO_ENGINE 159#include <openssl/engine.h> 160#endif 161 162#include "bytestring.h" 163#include "ssl_sigalgs.h" 164 165const char *SSL_version_str = OPENSSL_VERSION_TEXT; 166 167int 168SSL_clear(SSL *s) 169{ 170 if (s->method == NULL) { 171 SSLerror(s, SSL_R_NO_METHOD_SPECIFIED); 172 return (0); 173 } 174 175 if (ssl_clear_bad_session(s)) { 176 SSL_SESSION_free(s->session); 177 s->session = NULL; 178 } 179 180 s->error = 0; 181 s->internal->hit = 0; 182 s->internal->shutdown = 0; 183 184 if (s->internal->renegotiate) { 185 SSLerror(s, ERR_R_INTERNAL_ERROR); 186 return (0); 187 } 188 189 s->internal->type = 0; 190 191 s->version = s->method->internal->version; 192 s->client_version = s->version; 193 s->internal->rwstate = SSL_NOTHING; 194 s->internal->rstate = SSL_ST_READ_HEADER; 195 196 tls13_ctx_free(s->internal->tls13); 197 s->internal->tls13 = NULL; 198 199 BUF_MEM_free(s->internal->init_buf); 200 s->internal->init_buf = NULL; 201 202 ssl_clear_cipher_state(s); 203 204 s->internal->first_packet = 0; 205 206 /* 207 * Check to see if we were changed into a different method, if 208 * so, revert back if we are not doing session-id reuse. 209 */ 210 if (!s->internal->in_handshake && (s->session == NULL) && 211 (s->method != s->ctx->method)) { 212 s->method->internal->ssl_free(s); 213 s->method = s->ctx->method; 214 if (!s->method->internal->ssl_new(s)) 215 return (0); 216 } else 217 s->method->internal->ssl_clear(s); 218 219 return (1); 220} 221 222/* Used to change an SSL_CTXs default SSL method type */ 223int 224SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 225{ 226 STACK_OF(SSL_CIPHER) *ciphers; 227 228 ctx->method = meth; 229 230 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 231 ctx->internal->cipher_list_tls13, SSL_DEFAULT_CIPHER_LIST); 232 if (ciphers == NULL || sk_SSL_CIPHER_num(ciphers) <= 0) { 233 SSLerrorx(SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 234 return (0); 235 } 236 return (1); 237} 238 239SSL * 240SSL_new(SSL_CTX *ctx) 241{ 242 SSL *s; 243 244 if (ctx == NULL) { 245 SSLerrorx(SSL_R_NULL_SSL_CTX); 246 return (NULL); 247 } 248 if (ctx->method == NULL) { 249 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 250 return (NULL); 251 } 252 253 if ((s = calloc(1, sizeof(*s))) == NULL) 254 goto err; 255 if ((s->internal = calloc(1, sizeof(*s->internal))) == NULL) 256 goto err; 257 258 s->internal->min_version = ctx->internal->min_version; 259 s->internal->max_version = ctx->internal->max_version; 260 261 s->internal->options = ctx->internal->options; 262 s->internal->mode = ctx->internal->mode; 263 s->internal->max_cert_list = ctx->internal->max_cert_list; 264 265 if ((s->cert = ssl_cert_dup(ctx->internal->cert)) == NULL) 266 goto err; 267 268 s->internal->read_ahead = ctx->internal->read_ahead; 269 s->internal->msg_callback = ctx->internal->msg_callback; 270 s->internal->msg_callback_arg = ctx->internal->msg_callback_arg; 271 s->verify_mode = ctx->verify_mode; 272 s->sid_ctx_length = ctx->sid_ctx_length; 273 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 274 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); 275 s->internal->verify_callback = ctx->internal->default_verify_callback; 276 s->internal->generate_session_id = ctx->internal->generate_session_id; 277 278 s->param = X509_VERIFY_PARAM_new(); 279 if (!s->param) 280 goto err; 281 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 282 s->internal->quiet_shutdown = ctx->internal->quiet_shutdown; 283 s->max_send_fragment = ctx->internal->max_send_fragment; 284 285 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 286 s->ctx = ctx; 287 s->internal->tlsext_debug_cb = 0; 288 s->internal->tlsext_debug_arg = NULL; 289 s->internal->tlsext_ticket_expected = 0; 290 s->tlsext_status_type = -1; 291 s->internal->tlsext_status_expected = 0; 292 s->internal->tlsext_ocsp_ids = NULL; 293 s->internal->tlsext_ocsp_exts = NULL; 294 s->internal->tlsext_ocsp_resp = NULL; 295 s->internal->tlsext_ocsp_resp_len = 0; 296 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 297 s->initial_ctx = ctx; 298 299 if (ctx->internal->tlsext_ecpointformatlist != NULL) { 300 s->internal->tlsext_ecpointformatlist = 301 calloc(ctx->internal->tlsext_ecpointformatlist_length, 302 sizeof(ctx->internal->tlsext_ecpointformatlist[0])); 303 if (s->internal->tlsext_ecpointformatlist == NULL) 304 goto err; 305 memcpy(s->internal->tlsext_ecpointformatlist, 306 ctx->internal->tlsext_ecpointformatlist, 307 ctx->internal->tlsext_ecpointformatlist_length * 308 sizeof(ctx->internal->tlsext_ecpointformatlist[0])); 309 s->internal->tlsext_ecpointformatlist_length = 310 ctx->internal->tlsext_ecpointformatlist_length; 311 } 312 if (ctx->internal->tlsext_supportedgroups != NULL) { 313 s->internal->tlsext_supportedgroups = 314 calloc(ctx->internal->tlsext_supportedgroups_length, 315 sizeof(ctx->internal->tlsext_supportedgroups[0])); 316 if (s->internal->tlsext_supportedgroups == NULL) 317 goto err; 318 memcpy(s->internal->tlsext_supportedgroups, 319 ctx->internal->tlsext_supportedgroups, 320 ctx->internal->tlsext_supportedgroups_length * 321 sizeof(ctx->internal->tlsext_supportedgroups[0])); 322 s->internal->tlsext_supportedgroups_length = 323 ctx->internal->tlsext_supportedgroups_length; 324 } 325 326 if (s->ctx->internal->alpn_client_proto_list != NULL) { 327 s->internal->alpn_client_proto_list = 328 malloc(s->ctx->internal->alpn_client_proto_list_len); 329 if (s->internal->alpn_client_proto_list == NULL) 330 goto err; 331 memcpy(s->internal->alpn_client_proto_list, 332 s->ctx->internal->alpn_client_proto_list, 333 s->ctx->internal->alpn_client_proto_list_len); 334 s->internal->alpn_client_proto_list_len = 335 s->ctx->internal->alpn_client_proto_list_len; 336 } 337 338 s->verify_result = X509_V_OK; 339 340 s->method = ctx->method; 341 342 if (!s->method->internal->ssl_new(s)) 343 goto err; 344 345 if ((s->internal->rl = tls12_record_layer_new()) == NULL) 346 goto err; 347 348 s->references = 1; 349 s->server = (ctx->method->internal->ssl_accept == ssl_undefined_function) ? 0 : 1; 350 351 SSL_clear(s); 352 353 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 354 355 return (s); 356 357 err: 358 SSL_free(s); 359 SSLerrorx(ERR_R_MALLOC_FAILURE); 360 return (NULL); 361} 362 363int 364SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 365 unsigned int sid_ctx_len) 366{ 367 if (sid_ctx_len > sizeof ctx->sid_ctx) { 368 SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 369 return (0); 370 } 371 ctx->sid_ctx_length = sid_ctx_len; 372 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 373 374 return (1); 375} 376 377int 378SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 379 unsigned int sid_ctx_len) 380{ 381 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 382 SSLerror(ssl, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 383 return (0); 384 } 385 ssl->sid_ctx_length = sid_ctx_len; 386 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 387 388 return (1); 389} 390 391int 392SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 393{ 394 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 395 ctx->internal->generate_session_id = cb; 396 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 397 return (1); 398} 399 400int 401SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 402{ 403 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 404 ssl->internal->generate_session_id = cb; 405 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 406 return (1); 407} 408 409int 410SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 411 unsigned int id_len) 412{ 413 /* 414 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 415 * shows how we can "construct" a session to give us the desired 416 * check - ie. to find if there's a session in the hash table 417 * that would conflict with any new session built out of this 418 * id/id_len and the ssl_version in use by this SSL. 419 */ 420 SSL_SESSION r, *p; 421 422 if (id_len > sizeof r.session_id) 423 return (0); 424 425 r.ssl_version = ssl->version; 426 r.session_id_length = id_len; 427 memcpy(r.session_id, id, id_len); 428 429 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 430 p = lh_SSL_SESSION_retrieve(ssl->ctx->internal->sessions, &r); 431 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 432 return (p != NULL); 433} 434 435int 436SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 437{ 438 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 439} 440 441int 442SSL_set_purpose(SSL *s, int purpose) 443{ 444 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 445} 446 447int 448SSL_CTX_set_trust(SSL_CTX *s, int trust) 449{ 450 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 451} 452 453int 454SSL_set_trust(SSL *s, int trust) 455{ 456 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 457} 458 459int 460SSL_set1_host(SSL *s, const char *hostname) 461{ 462 struct in_addr ina; 463 struct in6_addr in6a; 464 465 if (hostname != NULL && *hostname != '\0' && 466 (inet_pton(AF_INET, hostname, &ina) == 1 || 467 inet_pton(AF_INET6, hostname, &in6a) == 1)) 468 return X509_VERIFY_PARAM_set1_ip_asc(s->param, hostname); 469 else 470 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); 471} 472 473X509_VERIFY_PARAM * 474SSL_CTX_get0_param(SSL_CTX *ctx) 475{ 476 return (ctx->param); 477} 478 479int 480SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 481{ 482 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 483} 484 485X509_VERIFY_PARAM * 486SSL_get0_param(SSL *ssl) 487{ 488 return (ssl->param); 489} 490 491int 492SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 493{ 494 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 495} 496 497void 498SSL_free(SSL *s) 499{ 500 int i; 501 502 if (s == NULL) 503 return; 504 505 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 506 if (i > 0) 507 return; 508 509 X509_VERIFY_PARAM_free(s->param); 510 511 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 512 513 if (s->bbio != NULL) { 514 /* If the buffering BIO is in place, pop it off */ 515 if (s->bbio == s->wbio) { 516 s->wbio = BIO_pop(s->wbio); 517 } 518 BIO_free(s->bbio); 519 s->bbio = NULL; 520 } 521 522 if (s->rbio != s->wbio) 523 BIO_free_all(s->rbio); 524 BIO_free_all(s->wbio); 525 526 tls13_ctx_free(s->internal->tls13); 527 528 BUF_MEM_free(s->internal->init_buf); 529 530 sk_SSL_CIPHER_free(s->cipher_list); 531 sk_SSL_CIPHER_free(s->internal->cipher_list_tls13); 532 533 /* Make the next call work :-) */ 534 if (s->session != NULL) { 535 ssl_clear_bad_session(s); 536 SSL_SESSION_free(s->session); 537 } 538 539 ssl_clear_cipher_state(s); 540 541 ssl_cert_free(s->cert); 542 543 free(s->tlsext_hostname); 544 SSL_CTX_free(s->initial_ctx); 545 546 free(s->internal->tlsext_ecpointformatlist); 547 free(s->internal->tlsext_supportedgroups); 548 549 sk_X509_EXTENSION_pop_free(s->internal->tlsext_ocsp_exts, 550 X509_EXTENSION_free); 551 sk_OCSP_RESPID_pop_free(s->internal->tlsext_ocsp_ids, OCSP_RESPID_free); 552 free(s->internal->tlsext_ocsp_resp); 553 554 sk_X509_NAME_pop_free(s->internal->client_CA, X509_NAME_free); 555 556 if (s->method != NULL) 557 s->method->internal->ssl_free(s); 558 559 SSL_CTX_free(s->ctx); 560 561 free(s->internal->alpn_client_proto_list); 562 563#ifndef OPENSSL_NO_SRTP 564 sk_SRTP_PROTECTION_PROFILE_free(s->internal->srtp_profiles); 565#endif 566 567 tls12_record_layer_free(s->internal->rl); 568 569 free(s->internal); 570 free(s); 571} 572 573int 574SSL_up_ref(SSL *s) 575{ 576 int refs = CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL); 577 return (refs > 1) ? 1 : 0; 578} 579 580void 581SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 582{ 583 /* If the output buffering BIO is still in place, remove it */ 584 if (s->bbio != NULL) { 585 if (s->wbio == s->bbio) { 586 s->wbio = s->wbio->next_bio; 587 s->bbio->next_bio = NULL; 588 } 589 } 590 591 if (s->rbio != rbio && s->rbio != s->wbio) 592 BIO_free_all(s->rbio); 593 if (s->wbio != wbio) 594 BIO_free_all(s->wbio); 595 s->rbio = rbio; 596 s->wbio = wbio; 597} 598 599BIO * 600SSL_get_rbio(const SSL *s) 601{ 602 return (s->rbio); 603} 604 605BIO * 606SSL_get_wbio(const SSL *s) 607{ 608 return (s->wbio); 609} 610 611int 612SSL_get_fd(const SSL *s) 613{ 614 return (SSL_get_rfd(s)); 615} 616 617int 618SSL_get_rfd(const SSL *s) 619{ 620 int ret = -1; 621 BIO *b, *r; 622 623 b = SSL_get_rbio(s); 624 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 625 if (r != NULL) 626 BIO_get_fd(r, &ret); 627 return (ret); 628} 629 630int 631SSL_get_wfd(const SSL *s) 632{ 633 int ret = -1; 634 BIO *b, *r; 635 636 b = SSL_get_wbio(s); 637 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 638 if (r != NULL) 639 BIO_get_fd(r, &ret); 640 return (ret); 641} 642 643int 644SSL_set_fd(SSL *s, int fd) 645{ 646 int ret = 0; 647 BIO *bio = NULL; 648 649 bio = BIO_new(BIO_s_socket()); 650 651 if (bio == NULL) { 652 SSLerror(s, ERR_R_BUF_LIB); 653 goto err; 654 } 655 BIO_set_fd(bio, fd, BIO_NOCLOSE); 656 SSL_set_bio(s, bio, bio); 657 ret = 1; 658err: 659 return (ret); 660} 661 662int 663SSL_set_wfd(SSL *s, int fd) 664{ 665 int ret = 0; 666 BIO *bio = NULL; 667 668 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 669 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 670 bio = BIO_new(BIO_s_socket()); 671 672 if (bio == NULL) { 673 SSLerror(s, ERR_R_BUF_LIB); 674 goto err; 675 } 676 BIO_set_fd(bio, fd, BIO_NOCLOSE); 677 SSL_set_bio(s, SSL_get_rbio(s), bio); 678 } else 679 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 680 ret = 1; 681err: 682 return (ret); 683} 684 685int 686SSL_set_rfd(SSL *s, int fd) 687{ 688 int ret = 0; 689 BIO *bio = NULL; 690 691 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 692 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 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, SSL_get_wbio(s)); 701 } else 702 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 703 ret = 1; 704err: 705 return (ret); 706} 707 708 709/* return length of latest Finished message we sent, copy to 'buf' */ 710size_t 711SSL_get_finished(const SSL *s, void *buf, size_t count) 712{ 713 size_t ret; 714 715 ret = S3I(s)->tmp.finish_md_len; 716 if (count > ret) 717 count = ret; 718 memcpy(buf, S3I(s)->tmp.finish_md, count); 719 return (ret); 720} 721 722/* return length of latest Finished message we expected, copy to 'buf' */ 723size_t 724SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 725{ 726 size_t ret; 727 728 ret = S3I(s)->tmp.peer_finish_md_len; 729 if (count > ret) 730 count = ret; 731 memcpy(buf, S3I(s)->tmp.peer_finish_md, count); 732 return (ret); 733} 734 735 736int 737SSL_get_verify_mode(const SSL *s) 738{ 739 return (s->verify_mode); 740} 741 742int 743SSL_get_verify_depth(const SSL *s) 744{ 745 return (X509_VERIFY_PARAM_get_depth(s->param)); 746} 747 748int 749(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 750{ 751 return (s->internal->verify_callback); 752} 753 754int 755SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 756{ 757 return (ctx->verify_mode); 758} 759 760int 761SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 762{ 763 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 764} 765 766int 767(*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 768{ 769 return (ctx->internal->default_verify_callback); 770} 771 772void 773SSL_set_verify(SSL *s, int mode, 774 int (*callback)(int ok, X509_STORE_CTX *ctx)) 775{ 776 s->verify_mode = mode; 777 if (callback != NULL) 778 s->internal->verify_callback = callback; 779} 780 781void 782SSL_set_verify_depth(SSL *s, int depth) 783{ 784 X509_VERIFY_PARAM_set_depth(s->param, depth); 785} 786 787void 788SSL_set_read_ahead(SSL *s, int yes) 789{ 790 s->internal->read_ahead = yes; 791} 792 793int 794SSL_get_read_ahead(const SSL *s) 795{ 796 return (s->internal->read_ahead); 797} 798 799int 800SSL_pending(const SSL *s) 801{ 802 return (s->method->internal->ssl_pending(s)); 803} 804 805X509 * 806SSL_get_peer_certificate(const SSL *s) 807{ 808 X509 *r; 809 810 if ((s == NULL) || (s->session == NULL)) 811 r = NULL; 812 else 813 r = s->session->peer; 814 815 if (r == NULL) 816 return (r); 817 818 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509); 819 820 return (r); 821} 822 823STACK_OF(X509) * 824SSL_get_peer_cert_chain(const SSL *s) 825{ 826 STACK_OF(X509) *r; 827 828 if ((s == NULL) || (s->session == NULL) || 829 (SSI(s)->sess_cert == NULL)) 830 r = NULL; 831 else 832 r = SSI(s)->sess_cert->cert_chain; 833 834 /* 835 * If we are a client, cert_chain includes the peer's own 836 * certificate; 837 * if we are a server, it does not. 838 */ 839 return (r); 840} 841 842/* 843 * Now in theory, since the calling process own 't' it should be safe to 844 * modify. We need to be able to read f without being hassled 845 */ 846int 847SSL_copy_session_id(SSL *t, const SSL *f) 848{ 849 CERT *tmp; 850 851 /* Do we need to do SSL locking? */ 852 if (!SSL_set_session(t, SSL_get_session(f))) 853 return 0; 854 855 /* What if we are set up for one protocol but want to talk another? */ 856 if (t->method != f->method) { 857 t->method->internal->ssl_free(t); 858 t->method = f->method; 859 if (!t->method->internal->ssl_new(t)) 860 return 0; 861 } 862 863 tmp = t->cert; 864 if (f->cert != NULL) { 865 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 866 t->cert = f->cert; 867 } else 868 t->cert = NULL; 869 ssl_cert_free(tmp); 870 871 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) 872 return 0; 873 874 return 1; 875} 876 877/* Fix this so it checks all the valid key/cert options */ 878int 879SSL_CTX_check_private_key(const SSL_CTX *ctx) 880{ 881 if ((ctx == NULL) || (ctx->internal->cert == NULL) || 882 (ctx->internal->cert->key->x509 == NULL)) { 883 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED); 884 return (0); 885 } 886 if (ctx->internal->cert->key->privatekey == NULL) { 887 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED); 888 return (0); 889 } 890 return (X509_check_private_key(ctx->internal->cert->key->x509, 891 ctx->internal->cert->key->privatekey)); 892} 893 894/* Fix this function so that it takes an optional type parameter */ 895int 896SSL_check_private_key(const SSL *ssl) 897{ 898 if (ssl == NULL) { 899 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); 900 return (0); 901 } 902 if (ssl->cert == NULL) { 903 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 904 return (0); 905 } 906 if (ssl->cert->key->x509 == NULL) { 907 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 908 return (0); 909 } 910 if (ssl->cert->key->privatekey == NULL) { 911 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 912 return (0); 913 } 914 return (X509_check_private_key(ssl->cert->key->x509, 915 ssl->cert->key->privatekey)); 916} 917 918int 919SSL_accept(SSL *s) 920{ 921 if (s->internal->handshake_func == NULL) 922 SSL_set_accept_state(s); /* Not properly initialized yet */ 923 924 return (s->method->internal->ssl_accept(s)); 925} 926 927int 928SSL_connect(SSL *s) 929{ 930 if (s->internal->handshake_func == NULL) 931 SSL_set_connect_state(s); /* Not properly initialized yet */ 932 933 return (s->method->internal->ssl_connect(s)); 934} 935 936int 937SSL_is_server(const SSL *s) 938{ 939 return s->server; 940} 941 942static long 943ssl_get_default_timeout() 944{ 945 /* 946 * 2 hours, the 24 hours mentioned in the TLSv1 spec 947 * is way too long for http, the cache would over fill. 948 */ 949 return (2 * 60 * 60); 950} 951 952long 953SSL_get_default_timeout(const SSL *s) 954{ 955 return (ssl_get_default_timeout()); 956} 957 958int 959SSL_read(SSL *s, void *buf, int num) 960{ 961 if (s->internal->handshake_func == NULL) { 962 SSLerror(s, SSL_R_UNINITIALIZED); 963 return (-1); 964 } 965 966 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 967 s->internal->rwstate = SSL_NOTHING; 968 return (0); 969 } 970 return ssl3_read(s, buf, num); 971} 972 973int 974SSL_peek(SSL *s, void *buf, int num) 975{ 976 if (s->internal->handshake_func == NULL) { 977 SSLerror(s, SSL_R_UNINITIALIZED); 978 return (-1); 979 } 980 981 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 982 return (0); 983 } 984 return ssl3_peek(s, buf, num); 985} 986 987int 988SSL_write(SSL *s, const void *buf, int num) 989{ 990 if (s->internal->handshake_func == NULL) { 991 SSLerror(s, SSL_R_UNINITIALIZED); 992 return (-1); 993 } 994 995 if (s->internal->shutdown & SSL_SENT_SHUTDOWN) { 996 s->internal->rwstate = SSL_NOTHING; 997 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 998 return (-1); 999 } 1000 return ssl3_write(s, buf, num); 1001} 1002 1003uint32_t 1004SSL_CTX_get_max_early_data(const SSL_CTX *ctx) 1005{ 1006 return 0; 1007} 1008 1009int 1010SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) 1011{ 1012 return 1; 1013} 1014 1015uint32_t 1016SSL_get_max_early_data(const SSL *s) 1017{ 1018 return 0; 1019} 1020 1021int 1022SSL_set_max_early_data(SSL *s, uint32_t max_early_data) 1023{ 1024 return 1; 1025} 1026int 1027SSL_shutdown(SSL *s) 1028{ 1029 /* 1030 * Note that this function behaves differently from what one might 1031 * expect. Return values are 0 for no success (yet), 1032 * 1 for success; but calling it once is usually not enough, 1033 * even if blocking I/O is used (see ssl3_shutdown). 1034 */ 1035 1036 if (s->internal->handshake_func == NULL) { 1037 SSLerror(s, SSL_R_UNINITIALIZED); 1038 return (-1); 1039 } 1040 1041 if (s != NULL && !SSL_in_init(s)) 1042 return (s->method->internal->ssl_shutdown(s)); 1043 1044 return (1); 1045} 1046 1047int 1048SSL_renegotiate(SSL *s) 1049{ 1050 if (s->internal->renegotiate == 0) 1051 s->internal->renegotiate = 1; 1052 1053 s->internal->new_session = 1; 1054 1055 return (s->method->internal->ssl_renegotiate(s)); 1056} 1057 1058int 1059SSL_renegotiate_abbreviated(SSL *s) 1060{ 1061 if (s->internal->renegotiate == 0) 1062 s->internal->renegotiate = 1; 1063 1064 s->internal->new_session = 0; 1065 1066 return (s->method->internal->ssl_renegotiate(s)); 1067} 1068 1069int 1070SSL_renegotiate_pending(SSL *s) 1071{ 1072 /* 1073 * Becomes true when negotiation is requested; 1074 * false again once a handshake has finished. 1075 */ 1076 return (s->internal->renegotiate != 0); 1077} 1078 1079long 1080SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1081{ 1082 long l; 1083 1084 switch (cmd) { 1085 case SSL_CTRL_GET_READ_AHEAD: 1086 return (s->internal->read_ahead); 1087 case SSL_CTRL_SET_READ_AHEAD: 1088 l = s->internal->read_ahead; 1089 s->internal->read_ahead = larg; 1090 return (l); 1091 1092 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1093 s->internal->msg_callback_arg = parg; 1094 return (1); 1095 1096 case SSL_CTRL_OPTIONS: 1097 return (s->internal->options|=larg); 1098 case SSL_CTRL_CLEAR_OPTIONS: 1099 return (s->internal->options&=~larg); 1100 case SSL_CTRL_MODE: 1101 return (s->internal->mode|=larg); 1102 case SSL_CTRL_CLEAR_MODE: 1103 return (s->internal->mode &=~larg); 1104 case SSL_CTRL_GET_MAX_CERT_LIST: 1105 return (s->internal->max_cert_list); 1106 case SSL_CTRL_SET_MAX_CERT_LIST: 1107 l = s->internal->max_cert_list; 1108 s->internal->max_cert_list = larg; 1109 return (l); 1110 case SSL_CTRL_SET_MTU: 1111#ifndef OPENSSL_NO_DTLS1 1112 if (larg < (long)dtls1_min_mtu()) 1113 return (0); 1114#endif 1115 if (SSL_IS_DTLS(s)) { 1116 D1I(s)->mtu = larg; 1117 return (larg); 1118 } 1119 return (0); 1120 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1121 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1122 return (0); 1123 s->max_send_fragment = larg; 1124 return (1); 1125 case SSL_CTRL_GET_RI_SUPPORT: 1126 if (s->s3) 1127 return (S3I(s)->send_connection_binding); 1128 else return (0); 1129 default: 1130 if (SSL_IS_DTLS(s)) 1131 return dtls1_ctrl(s, cmd, larg, parg); 1132 return ssl3_ctrl(s, cmd, larg, parg); 1133 } 1134} 1135 1136long 1137SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1138{ 1139 switch (cmd) { 1140 case SSL_CTRL_SET_MSG_CALLBACK: 1141 s->internal->msg_callback = (void (*)(int write_p, int version, 1142 int content_type, const void *buf, size_t len, 1143 SSL *ssl, void *arg))(fp); 1144 return (1); 1145 1146 default: 1147 return (ssl3_callback_ctrl(s, cmd, fp)); 1148 } 1149} 1150 1151struct lhash_st_SSL_SESSION * 1152SSL_CTX_sessions(SSL_CTX *ctx) 1153{ 1154 return (ctx->internal->sessions); 1155} 1156 1157long 1158SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1159{ 1160 long l; 1161 1162 switch (cmd) { 1163 case SSL_CTRL_GET_READ_AHEAD: 1164 return (ctx->internal->read_ahead); 1165 case SSL_CTRL_SET_READ_AHEAD: 1166 l = ctx->internal->read_ahead; 1167 ctx->internal->read_ahead = larg; 1168 return (l); 1169 1170 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1171 ctx->internal->msg_callback_arg = parg; 1172 return (1); 1173 1174 case SSL_CTRL_GET_MAX_CERT_LIST: 1175 return (ctx->internal->max_cert_list); 1176 case SSL_CTRL_SET_MAX_CERT_LIST: 1177 l = ctx->internal->max_cert_list; 1178 ctx->internal->max_cert_list = larg; 1179 return (l); 1180 1181 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1182 l = ctx->internal->session_cache_size; 1183 ctx->internal->session_cache_size = larg; 1184 return (l); 1185 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1186 return (ctx->internal->session_cache_size); 1187 case SSL_CTRL_SET_SESS_CACHE_MODE: 1188 l = ctx->internal->session_cache_mode; 1189 ctx->internal->session_cache_mode = larg; 1190 return (l); 1191 case SSL_CTRL_GET_SESS_CACHE_MODE: 1192 return (ctx->internal->session_cache_mode); 1193 1194 case SSL_CTRL_SESS_NUMBER: 1195 return (lh_SSL_SESSION_num_items(ctx->internal->sessions)); 1196 case SSL_CTRL_SESS_CONNECT: 1197 return (ctx->internal->stats.sess_connect); 1198 case SSL_CTRL_SESS_CONNECT_GOOD: 1199 return (ctx->internal->stats.sess_connect_good); 1200 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1201 return (ctx->internal->stats.sess_connect_renegotiate); 1202 case SSL_CTRL_SESS_ACCEPT: 1203 return (ctx->internal->stats.sess_accept); 1204 case SSL_CTRL_SESS_ACCEPT_GOOD: 1205 return (ctx->internal->stats.sess_accept_good); 1206 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1207 return (ctx->internal->stats.sess_accept_renegotiate); 1208 case SSL_CTRL_SESS_HIT: 1209 return (ctx->internal->stats.sess_hit); 1210 case SSL_CTRL_SESS_CB_HIT: 1211 return (ctx->internal->stats.sess_cb_hit); 1212 case SSL_CTRL_SESS_MISSES: 1213 return (ctx->internal->stats.sess_miss); 1214 case SSL_CTRL_SESS_TIMEOUTS: 1215 return (ctx->internal->stats.sess_timeout); 1216 case SSL_CTRL_SESS_CACHE_FULL: 1217 return (ctx->internal->stats.sess_cache_full); 1218 case SSL_CTRL_OPTIONS: 1219 return (ctx->internal->options|=larg); 1220 case SSL_CTRL_CLEAR_OPTIONS: 1221 return (ctx->internal->options&=~larg); 1222 case SSL_CTRL_MODE: 1223 return (ctx->internal->mode|=larg); 1224 case SSL_CTRL_CLEAR_MODE: 1225 return (ctx->internal->mode&=~larg); 1226 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1227 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1228 return (0); 1229 ctx->internal->max_send_fragment = larg; 1230 return (1); 1231 default: 1232 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1233 } 1234} 1235 1236long 1237SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1238{ 1239 switch (cmd) { 1240 case SSL_CTRL_SET_MSG_CALLBACK: 1241 ctx->internal->msg_callback = (void (*)(int write_p, int version, 1242 int content_type, const void *buf, size_t len, SSL *ssl, 1243 void *arg))(fp); 1244 return (1); 1245 1246 default: 1247 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1248 } 1249} 1250 1251int 1252ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1253{ 1254 long l; 1255 1256 l = a->id - b->id; 1257 if (l == 0L) 1258 return (0); 1259 else 1260 return ((l > 0) ? 1:-1); 1261} 1262 1263STACK_OF(SSL_CIPHER) * 1264SSL_get_ciphers(const SSL *s) 1265{ 1266 if (s == NULL) 1267 return (NULL); 1268 if (s->cipher_list != NULL) 1269 return (s->cipher_list); 1270 1271 return (s->ctx->cipher_list); 1272} 1273 1274STACK_OF(SSL_CIPHER) * 1275SSL_get_client_ciphers(const SSL *s) 1276{ 1277 if (s == NULL || s->session == NULL || !s->server) 1278 return NULL; 1279 return s->session->ciphers; 1280} 1281 1282STACK_OF(SSL_CIPHER) * 1283SSL_get1_supported_ciphers(SSL *s) 1284{ 1285 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers; 1286 const SSL_CIPHER *cipher; 1287 uint16_t min_vers, max_vers; 1288 int i; 1289 1290 if (s == NULL) 1291 return NULL; 1292 if (!ssl_supported_version_range(s, &min_vers, &max_vers)) 1293 return NULL; 1294 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1295 return NULL; 1296 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL) 1297 return NULL; 1298 1299 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1300 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL) 1301 goto err; 1302 if (!ssl_cipher_allowed_in_version_range(cipher, min_vers, 1303 max_vers)) 1304 continue; 1305 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher)) 1306 goto err; 1307 } 1308 1309 if (sk_SSL_CIPHER_num(supported_ciphers) > 0) 1310 return supported_ciphers; 1311 1312 err: 1313 sk_SSL_CIPHER_free(supported_ciphers); 1314 return NULL; 1315} 1316 1317/* See if we have any ECC cipher suites. */ 1318int 1319ssl_has_ecc_ciphers(SSL *s) 1320{ 1321 STACK_OF(SSL_CIPHER) *ciphers; 1322 unsigned long alg_k, alg_a; 1323 SSL_CIPHER *cipher; 1324 int i; 1325 1326 if (s->version == DTLS1_VERSION) 1327 return 0; 1328 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1329 return 0; 1330 1331 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1332 cipher = sk_SSL_CIPHER_value(ciphers, i); 1333 1334 alg_k = cipher->algorithm_mkey; 1335 alg_a = cipher->algorithm_auth; 1336 1337 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1338 return 1; 1339 } 1340 1341 return 0; 1342} 1343 1344/* The old interface to get the same thing as SSL_get_ciphers(). */ 1345const char * 1346SSL_get_cipher_list(const SSL *s, int n) 1347{ 1348 STACK_OF(SSL_CIPHER) *ciphers; 1349 const SSL_CIPHER *cipher; 1350 1351 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1352 return (NULL); 1353 if ((cipher = sk_SSL_CIPHER_value(ciphers, n)) == NULL) 1354 return (NULL); 1355 1356 return (cipher->name); 1357} 1358 1359STACK_OF(SSL_CIPHER) * 1360SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1361{ 1362 if (ctx == NULL) 1363 return NULL; 1364 return ctx->cipher_list; 1365} 1366 1367/* Specify the ciphers to be used by default by the SSL_CTX. */ 1368int 1369SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1370{ 1371 STACK_OF(SSL_CIPHER) *ciphers; 1372 1373 /* 1374 * ssl_create_cipher_list may return an empty stack if it was unable to 1375 * find a cipher matching the given rule string (for example if the 1376 * rule string specifies a cipher which has been disabled). This is not 1377 * an error as far as ssl_create_cipher_list is concerned, and hence 1378 * ctx->cipher_list has been updated. 1379 */ 1380 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1381 ctx->internal->cipher_list_tls13, str); 1382 if (ciphers == NULL) { 1383 return (0); 1384 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1385 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1386 return (0); 1387 } 1388 return (1); 1389} 1390 1391int 1392SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str) 1393{ 1394 if (!ssl_parse_ciphersuites(&ctx->internal->cipher_list_tls13, str)) { 1395 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1396 return 0; 1397 } 1398 if (!ssl_merge_cipherlists(ctx->cipher_list, 1399 ctx->internal->cipher_list_tls13, &ctx->cipher_list)) 1400 return 0; 1401 1402 return 1; 1403} 1404 1405/* Specify the ciphers to be used by the SSL. */ 1406int 1407SSL_set_cipher_list(SSL *s, const char *str) 1408{ 1409 STACK_OF(SSL_CIPHER) *ciphers, *ciphers_tls13; 1410 1411 if ((ciphers_tls13 = s->internal->cipher_list_tls13) == NULL) 1412 ciphers_tls13 = s->ctx->internal->cipher_list_tls13; 1413 1414 /* See comment in SSL_CTX_set_cipher_list. */ 1415 ciphers = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1416 ciphers_tls13, str); 1417 if (ciphers == NULL) { 1418 return (0); 1419 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1420 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1421 return (0); 1422 } 1423 return (1); 1424} 1425 1426int 1427SSL_set_ciphersuites(SSL *s, const char *str) 1428{ 1429 STACK_OF(SSL_CIPHER) *ciphers; 1430 1431 if ((ciphers = s->cipher_list) == NULL) 1432 ciphers = s->ctx->cipher_list; 1433 1434 if (!ssl_parse_ciphersuites(&s->internal->cipher_list_tls13, str)) { 1435 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1436 return (0); 1437 } 1438 if (!ssl_merge_cipherlists(ciphers, s->internal->cipher_list_tls13, 1439 &s->cipher_list)) 1440 return 0; 1441 1442 return 1; 1443} 1444 1445char * 1446SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1447{ 1448 STACK_OF(SSL_CIPHER) *ciphers; 1449 const SSL_CIPHER *cipher; 1450 size_t curlen = 0; 1451 char *end; 1452 int i; 1453 1454 if (s->session == NULL || s->session->ciphers == NULL || len < 2) 1455 return (NULL); 1456 1457 ciphers = s->session->ciphers; 1458 if (sk_SSL_CIPHER_num(ciphers) == 0) 1459 return (NULL); 1460 1461 buf[0] = '\0'; 1462 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1463 cipher = sk_SSL_CIPHER_value(ciphers, i); 1464 end = buf + curlen; 1465 if (strlcat(buf, cipher->name, len) >= len || 1466 (curlen = strlcat(buf, ":", len)) >= len) { 1467 /* remove truncated cipher from list */ 1468 *end = '\0'; 1469 break; 1470 } 1471 } 1472 /* remove trailing colon */ 1473 if ((end = strrchr(buf, ':')) != NULL) 1474 *end = '\0'; 1475 return (buf); 1476} 1477 1478/* 1479 * Return a servername extension value if provided in Client Hello, or NULL. 1480 * So far, only host_name types are defined (RFC 3546). 1481 */ 1482const char * 1483SSL_get_servername(const SSL *s, const int type) 1484{ 1485 if (type != TLSEXT_NAMETYPE_host_name) 1486 return (NULL); 1487 1488 return (s->session && !s->tlsext_hostname ? 1489 s->session->tlsext_hostname : 1490 s->tlsext_hostname); 1491} 1492 1493int 1494SSL_get_servername_type(const SSL *s) 1495{ 1496 if (s->session && 1497 (!s->tlsext_hostname ? 1498 s->session->tlsext_hostname : s->tlsext_hostname)) 1499 return (TLSEXT_NAMETYPE_host_name); 1500 return (-1); 1501} 1502 1503/* 1504 * SSL_select_next_proto implements standard protocol selection. It is 1505 * expected that this function is called from the callback set by 1506 * SSL_CTX_set_alpn_select_cb. 1507 * 1508 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1509 * strings. The length byte itself is not included in the length. A byte 1510 * string of length 0 is invalid. No byte string may be truncated. 1511 * 1512 * It returns either: 1513 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1514 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1515 */ 1516int 1517SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1518 const unsigned char *server, unsigned int server_len, 1519 const unsigned char *client, unsigned int client_len) 1520{ 1521 unsigned int i, j; 1522 const unsigned char *result; 1523 int status = OPENSSL_NPN_UNSUPPORTED; 1524 1525 /* 1526 * For each protocol in server preference order, 1527 * see if we support it. 1528 */ 1529 for (i = 0; i < server_len; ) { 1530 for (j = 0; j < client_len; ) { 1531 if (server[i] == client[j] && 1532 memcmp(&server[i + 1], 1533 &client[j + 1], server[i]) == 0) { 1534 /* We found a match */ 1535 result = &server[i]; 1536 status = OPENSSL_NPN_NEGOTIATED; 1537 goto found; 1538 } 1539 j += client[j]; 1540 j++; 1541 } 1542 i += server[i]; 1543 i++; 1544 } 1545 1546 /* There's no overlap between our protocols and the server's list. */ 1547 result = client; 1548 status = OPENSSL_NPN_NO_OVERLAP; 1549 1550found: 1551 *out = (unsigned char *) result + 1; 1552 *outlen = result[0]; 1553 return (status); 1554} 1555 1556/* SSL_get0_next_proto_negotiated is deprecated. */ 1557void 1558SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1559 unsigned int *len) 1560{ 1561 *data = NULL; 1562 *len = 0; 1563} 1564 1565/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1566void 1567SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1568 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1569{ 1570} 1571 1572/* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1573void 1574SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1575 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1576 unsigned int inlen, void *arg), void *arg) 1577{ 1578} 1579 1580/* 1581 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1582 * protocols, which must be in wire-format (i.e. a series of non-empty, 1583 * 8-bit length-prefixed strings). Returns 0 on success. 1584 */ 1585int 1586SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1587 unsigned int protos_len) 1588{ 1589 int failed = 1; 1590 1591 if (protos == NULL || protos_len == 0) 1592 goto err; 1593 1594 free(ctx->internal->alpn_client_proto_list); 1595 ctx->internal->alpn_client_proto_list = NULL; 1596 ctx->internal->alpn_client_proto_list_len = 0; 1597 1598 if ((ctx->internal->alpn_client_proto_list = malloc(protos_len)) 1599 == NULL) 1600 goto err; 1601 ctx->internal->alpn_client_proto_list_len = protos_len; 1602 1603 memcpy(ctx->internal->alpn_client_proto_list, protos, protos_len); 1604 1605 failed = 0; 1606 1607 err: 1608 /* NOTE: Return values are the reverse of what you expect. */ 1609 return (failed); 1610} 1611 1612/* 1613 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1614 * protocols, which must be in wire-format (i.e. a series of non-empty, 1615 * 8-bit length-prefixed strings). Returns 0 on success. 1616 */ 1617int 1618SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1619 unsigned int protos_len) 1620{ 1621 int failed = 1; 1622 1623 if (protos == NULL || protos_len == 0) 1624 goto err; 1625 1626 free(ssl->internal->alpn_client_proto_list); 1627 ssl->internal->alpn_client_proto_list = NULL; 1628 ssl->internal->alpn_client_proto_list_len = 0; 1629 1630 if ((ssl->internal->alpn_client_proto_list = malloc(protos_len)) 1631 == NULL) 1632 goto err; 1633 ssl->internal->alpn_client_proto_list_len = protos_len; 1634 1635 memcpy(ssl->internal->alpn_client_proto_list, protos, protos_len); 1636 1637 failed = 0; 1638 1639 err: 1640 /* NOTE: Return values are the reverse of what you expect. */ 1641 return (failed); 1642} 1643 1644/* 1645 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1646 * ClientHello processing in order to select an ALPN protocol from the 1647 * client's list of offered protocols. 1648 */ 1649void 1650SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1651 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1652 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1653{ 1654 ctx->internal->alpn_select_cb = cb; 1655 ctx->internal->alpn_select_cb_arg = arg; 1656} 1657 1658/* 1659 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1660 * it sets data to point to len bytes of protocol name (not including the 1661 * leading length-prefix byte). If the server didn't respond with* a negotiated 1662 * protocol then len will be zero. 1663 */ 1664void 1665SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1666 unsigned int *len) 1667{ 1668 *data = NULL; 1669 *len = 0; 1670 1671 *data = ssl->s3->internal->alpn_selected; 1672 *len = ssl->s3->internal->alpn_selected_len; 1673} 1674 1675int 1676SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1677 const char *label, size_t llen, const unsigned char *p, size_t plen, 1678 int use_context) 1679{ 1680 return (tls1_export_keying_material(s, out, olen, 1681 label, llen, p, plen, use_context)); 1682} 1683 1684static unsigned long 1685ssl_session_hash(const SSL_SESSION *a) 1686{ 1687 unsigned long l; 1688 1689 l = (unsigned long) 1690 ((unsigned int) a->session_id[0] )| 1691 ((unsigned int) a->session_id[1]<< 8L)| 1692 ((unsigned long)a->session_id[2]<<16L)| 1693 ((unsigned long)a->session_id[3]<<24L); 1694 return (l); 1695} 1696 1697/* 1698 * NB: If this function (or indeed the hash function which uses a sort of 1699 * coarser function than this one) is changed, ensure 1700 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1701 * able to construct an SSL_SESSION that will collide with any existing session 1702 * with a matching session ID. 1703 */ 1704static int 1705ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 1706{ 1707 if (a->ssl_version != b->ssl_version) 1708 return (1); 1709 if (a->session_id_length != b->session_id_length) 1710 return (1); 1711 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 1712 return (1); 1713 return (0); 1714} 1715 1716/* 1717 * These wrapper functions should remain rather than redeclaring 1718 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1719 * variable. The reason is that the functions aren't static, they're exposed via 1720 * ssl.h. 1721 */ 1722static unsigned long 1723ssl_session_LHASH_HASH(const void *arg) 1724{ 1725 const SSL_SESSION *a = arg; 1726 1727 return ssl_session_hash(a); 1728} 1729 1730static int 1731ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 1732{ 1733 const SSL_SESSION *a = arg1; 1734 const SSL_SESSION *b = arg2; 1735 1736 return ssl_session_cmp(a, b); 1737} 1738 1739SSL_CTX * 1740SSL_CTX_new(const SSL_METHOD *meth) 1741{ 1742 SSL_CTX *ret; 1743 1744 if (!OPENSSL_init_ssl(0, NULL)) { 1745 SSLerrorx(SSL_R_LIBRARY_BUG); 1746 return (NULL); 1747 } 1748 1749 if (meth == NULL) { 1750 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 1751 return (NULL); 1752 } 1753 1754 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 1755 SSLerrorx(ERR_R_MALLOC_FAILURE); 1756 return (NULL); 1757 } 1758 if ((ret->internal = calloc(1, sizeof(*ret->internal))) == NULL) { 1759 free(ret); 1760 SSLerrorx(ERR_R_MALLOC_FAILURE); 1761 return (NULL); 1762 } 1763 1764 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 1765 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1766 goto err; 1767 } 1768 1769 ret->method = meth; 1770 ret->internal->min_version = meth->internal->min_version; 1771 ret->internal->max_version = meth->internal->max_version; 1772 ret->internal->mode = SSL_MODE_AUTO_RETRY; 1773 1774 ret->cert_store = NULL; 1775 ret->internal->session_cache_mode = SSL_SESS_CACHE_SERVER; 1776 ret->internal->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1777 ret->internal->session_cache_head = NULL; 1778 ret->internal->session_cache_tail = NULL; 1779 1780 /* We take the system default */ 1781 ret->session_timeout = ssl_get_default_timeout(); 1782 1783 ret->internal->new_session_cb = 0; 1784 ret->internal->remove_session_cb = 0; 1785 ret->internal->get_session_cb = 0; 1786 ret->internal->generate_session_id = 0; 1787 1788 memset((char *)&ret->internal->stats, 0, sizeof(ret->internal->stats)); 1789 1790 ret->references = 1; 1791 ret->internal->quiet_shutdown = 0; 1792 1793 ret->internal->info_callback = NULL; 1794 1795 ret->internal->app_verify_callback = 0; 1796 ret->internal->app_verify_arg = NULL; 1797 1798 ret->internal->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 1799 ret->internal->read_ahead = 0; 1800 ret->internal->msg_callback = 0; 1801 ret->internal->msg_callback_arg = NULL; 1802 ret->verify_mode = SSL_VERIFY_NONE; 1803 ret->sid_ctx_length = 0; 1804 ret->internal->default_verify_callback = NULL; 1805 1806 if ((ret->internal->cert = ssl_cert_new()) == NULL) 1807 goto err; 1808 1809 ret->default_passwd_callback = 0; 1810 ret->default_passwd_callback_userdata = NULL; 1811 ret->internal->client_cert_cb = 0; 1812 ret->internal->app_gen_cookie_cb = 0; 1813 ret->internal->app_verify_cookie_cb = 0; 1814 1815 ret->internal->sessions = lh_SSL_SESSION_new(); 1816 if (ret->internal->sessions == NULL) 1817 goto err; 1818 ret->cert_store = X509_STORE_new(); 1819 if (ret->cert_store == NULL) 1820 goto err; 1821 1822 ssl_create_cipher_list(ret->method, &ret->cipher_list, 1823 NULL, SSL_DEFAULT_CIPHER_LIST); 1824 if (ret->cipher_list == NULL || 1825 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 1826 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 1827 goto err2; 1828 } 1829 1830 ret->param = X509_VERIFY_PARAM_new(); 1831 if (!ret->param) 1832 goto err; 1833 1834 if ((ret->internal->client_CA = sk_X509_NAME_new_null()) == NULL) 1835 goto err; 1836 1837 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->internal->ex_data); 1838 1839 ret->extra_certs = NULL; 1840 1841 ret->internal->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 1842 1843 ret->internal->tlsext_servername_callback = 0; 1844 ret->internal->tlsext_servername_arg = NULL; 1845 1846 /* Setup RFC4507 ticket keys */ 1847 arc4random_buf(ret->internal->tlsext_tick_key_name, 16); 1848 arc4random_buf(ret->internal->tlsext_tick_hmac_key, 16); 1849 arc4random_buf(ret->internal->tlsext_tick_aes_key, 16); 1850 1851 ret->internal->tlsext_status_cb = 0; 1852 ret->internal->tlsext_status_arg = NULL; 1853 1854#ifndef OPENSSL_NO_ENGINE 1855 ret->internal->client_cert_engine = NULL; 1856#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1857#define eng_strx(x) #x 1858#define eng_str(x) eng_strx(x) 1859 /* Use specific client engine automatically... ignore errors */ 1860 { 1861 ENGINE *eng; 1862 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1863 if (!eng) { 1864 ERR_clear_error(); 1865 ENGINE_load_builtin_engines(); 1866 eng = ENGINE_by_id(eng_str( 1867 OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1868 } 1869 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1870 ERR_clear_error(); 1871 } 1872#endif 1873#endif 1874 /* 1875 * Default is to connect to non-RI servers. When RI is more widely 1876 * deployed might change this. 1877 */ 1878 ret->internal->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1879 1880 return (ret); 1881err: 1882 SSLerrorx(ERR_R_MALLOC_FAILURE); 1883err2: 1884 SSL_CTX_free(ret); 1885 return (NULL); 1886} 1887 1888void 1889SSL_CTX_free(SSL_CTX *ctx) 1890{ 1891 int i; 1892 1893 if (ctx == NULL) 1894 return; 1895 1896 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 1897 if (i > 0) 1898 return; 1899 1900 X509_VERIFY_PARAM_free(ctx->param); 1901 1902 /* 1903 * Free internal session cache. However: the remove_cb() may reference 1904 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1905 * after the sessions were flushed. 1906 * As the ex_data handling routines might also touch the session cache, 1907 * the most secure solution seems to be: empty (flush) the cache, then 1908 * free ex_data, then finally free the cache. 1909 * (See ticket [openssl.org #212].) 1910 */ 1911 if (ctx->internal->sessions != NULL) 1912 SSL_CTX_flush_sessions(ctx, 0); 1913 1914 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->internal->ex_data); 1915 1916 lh_SSL_SESSION_free(ctx->internal->sessions); 1917 1918 X509_STORE_free(ctx->cert_store); 1919 sk_SSL_CIPHER_free(ctx->cipher_list); 1920 sk_SSL_CIPHER_free(ctx->internal->cipher_list_tls13); 1921 ssl_cert_free(ctx->internal->cert); 1922 sk_X509_NAME_pop_free(ctx->internal->client_CA, X509_NAME_free); 1923 sk_X509_pop_free(ctx->extra_certs, X509_free); 1924 1925#ifndef OPENSSL_NO_SRTP 1926 if (ctx->internal->srtp_profiles) 1927 sk_SRTP_PROTECTION_PROFILE_free(ctx->internal->srtp_profiles); 1928#endif 1929 1930#ifndef OPENSSL_NO_ENGINE 1931 ENGINE_finish(ctx->internal->client_cert_engine); 1932#endif 1933 1934 free(ctx->internal->tlsext_ecpointformatlist); 1935 free(ctx->internal->tlsext_supportedgroups); 1936 1937 free(ctx->internal->alpn_client_proto_list); 1938 1939 free(ctx->internal); 1940 free(ctx); 1941} 1942 1943int 1944SSL_CTX_up_ref(SSL_CTX *ctx) 1945{ 1946 int refs = CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 1947 return ((refs > 1) ? 1 : 0); 1948} 1949 1950pem_password_cb * 1951SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 1952{ 1953 return (ctx->default_passwd_callback); 1954} 1955 1956void 1957SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1958{ 1959 ctx->default_passwd_callback = cb; 1960} 1961 1962void * 1963SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 1964{ 1965 return ctx->default_passwd_callback_userdata; 1966} 1967 1968void 1969SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 1970{ 1971 ctx->default_passwd_callback_userdata = u; 1972} 1973 1974void 1975SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, 1976 int (*cb)(X509_STORE_CTX *, void *), void *arg) 1977{ 1978 ctx->internal->app_verify_callback = cb; 1979 ctx->internal->app_verify_arg = arg; 1980} 1981 1982void 1983SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 1984{ 1985 ctx->verify_mode = mode; 1986 ctx->internal->default_verify_callback = cb; 1987} 1988 1989void 1990SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 1991{ 1992 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1993} 1994 1995static int 1996ssl_cert_can_sign(X509 *x) 1997{ 1998 /* This call populates extension flags (ex_flags). */ 1999 X509_check_purpose(x, -1, 0); 2000 2001 /* Key usage, if present, must allow signing. */ 2002 return ((x->ex_flags & EXFLAG_KUSAGE) == 0 || 2003 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)); 2004} 2005 2006void 2007ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) 2008{ 2009 unsigned long mask_a, mask_k; 2010 CERT_PKEY *cpk; 2011 2012 if (c == NULL) 2013 return; 2014 2015 mask_a = SSL_aNULL | SSL_aTLS1_3; 2016 mask_k = SSL_kECDHE | SSL_kTLS1_3; 2017 2018 if (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto != 0) 2019 mask_k |= SSL_kDHE; 2020 2021 cpk = &(c->pkeys[SSL_PKEY_ECC]); 2022 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2023 if (ssl_cert_can_sign(cpk->x509)) 2024 mask_a |= SSL_aECDSA; 2025 } 2026 2027 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 2028 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2029 mask_k |= SSL_kGOST; 2030 mask_a |= SSL_aGOST01; 2031 } 2032 2033 cpk = &(c->pkeys[SSL_PKEY_RSA]); 2034 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2035 mask_a |= SSL_aRSA; 2036 mask_k |= SSL_kRSA; 2037 } 2038 2039 c->mask_k = mask_k; 2040 c->mask_a = mask_a; 2041 c->valid = 1; 2042} 2043 2044/* See if this handshake is using an ECC cipher suite. */ 2045int 2046ssl_using_ecc_cipher(SSL *s) 2047{ 2048 unsigned long alg_a, alg_k; 2049 2050 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 2051 alg_k = S3I(s)->hs.new_cipher->algorithm_mkey; 2052 2053 return SSI(s)->tlsext_ecpointformatlist != NULL && 2054 SSI(s)->tlsext_ecpointformatlist_length > 0 && 2055 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 2056} 2057 2058int 2059ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) 2060{ 2061 const SSL_CIPHER *cs = S3I(s)->hs.new_cipher; 2062 unsigned long alg_a; 2063 2064 alg_a = cs->algorithm_auth; 2065 2066 if (alg_a & SSL_aECDSA) { 2067 /* This call populates extension flags (ex_flags). */ 2068 X509_check_purpose(x, -1, 0); 2069 2070 /* Key usage, if present, must allow signing. */ 2071 if ((x->ex_flags & EXFLAG_KUSAGE) && 2072 ((x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) == 0)) { 2073 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2074 return (0); 2075 } 2076 } 2077 2078 return (1); 2079} 2080 2081CERT_PKEY * 2082ssl_get_server_send_pkey(const SSL *s) 2083{ 2084 unsigned long alg_a; 2085 CERT *c; 2086 int i; 2087 2088 c = s->cert; 2089 ssl_set_cert_masks(c, S3I(s)->hs.new_cipher); 2090 2091 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 2092 2093 if (alg_a & SSL_aECDSA) { 2094 i = SSL_PKEY_ECC; 2095 } else if (alg_a & SSL_aRSA) { 2096 i = SSL_PKEY_RSA; 2097 } else if (alg_a & SSL_aGOST01) { 2098 i = SSL_PKEY_GOST01; 2099 } else { /* if (alg_a & SSL_aNULL) */ 2100 SSLerror(s, ERR_R_INTERNAL_ERROR); 2101 return (NULL); 2102 } 2103 2104 return (c->pkeys + i); 2105} 2106 2107EVP_PKEY * 2108ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2109 const struct ssl_sigalg **sap) 2110{ 2111 const struct ssl_sigalg *sigalg = NULL; 2112 EVP_PKEY *pkey = NULL; 2113 unsigned long alg_a; 2114 CERT *c; 2115 int idx = -1; 2116 2117 alg_a = cipher->algorithm_auth; 2118 c = s->cert; 2119 2120 if (alg_a & SSL_aRSA) { 2121 idx = SSL_PKEY_RSA; 2122 } else if ((alg_a & SSL_aECDSA) && 2123 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2124 idx = SSL_PKEY_ECC; 2125 if (idx == -1) { 2126 SSLerror(s, ERR_R_INTERNAL_ERROR); 2127 return (NULL); 2128 } 2129 2130 pkey = c->pkeys[idx].privatekey; 2131 if ((sigalg = ssl_sigalg_select(s, pkey)) == NULL) { 2132 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2133 return (NULL); 2134 } 2135 *pmd = sigalg->md(); 2136 *sap = sigalg; 2137 2138 return (pkey); 2139} 2140 2141DH * 2142ssl_get_auto_dh(SSL *s) 2143{ 2144 CERT_PKEY *cpk; 2145 int keylen; 2146 DH *dhp; 2147 2148 if (s->cert->dh_tmp_auto == 2) { 2149 keylen = 1024; 2150 } else if (S3I(s)->hs.new_cipher->algorithm_auth & SSL_aNULL) { 2151 keylen = 1024; 2152 if (S3I(s)->hs.new_cipher->strength_bits == 256) 2153 keylen = 3072; 2154 } else { 2155 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2156 return (NULL); 2157 if (cpk->privatekey == NULL || cpk->privatekey->pkey.dh == NULL) 2158 return (NULL); 2159 keylen = EVP_PKEY_bits(cpk->privatekey); 2160 } 2161 2162 if ((dhp = DH_new()) == NULL) 2163 return (NULL); 2164 2165 dhp->g = BN_new(); 2166 if (dhp->g != NULL) 2167 BN_set_word(dhp->g, 2); 2168 2169 if (keylen >= 8192) 2170 dhp->p = get_rfc3526_prime_8192(NULL); 2171 else if (keylen >= 4096) 2172 dhp->p = get_rfc3526_prime_4096(NULL); 2173 else if (keylen >= 3072) 2174 dhp->p = get_rfc3526_prime_3072(NULL); 2175 else if (keylen >= 2048) 2176 dhp->p = get_rfc3526_prime_2048(NULL); 2177 else if (keylen >= 1536) 2178 dhp->p = get_rfc3526_prime_1536(NULL); 2179 else 2180 dhp->p = get_rfc2409_prime_1024(NULL); 2181 2182 if (dhp->p == NULL || dhp->g == NULL) { 2183 DH_free(dhp); 2184 return (NULL); 2185 } 2186 return (dhp); 2187} 2188 2189void 2190ssl_update_cache(SSL *s, int mode) 2191{ 2192 int i; 2193 2194 /* 2195 * If the session_id_length is 0, we are not supposed to cache it, 2196 * and it would be rather hard to do anyway :-) 2197 */ 2198 if (s->session->session_id_length == 0) 2199 return; 2200 2201 i = s->session_ctx->internal->session_cache_mode; 2202 if ((i & mode) && (!s->internal->hit) && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2203 || SSL_CTX_add_session(s->session_ctx, s->session)) 2204 && (s->session_ctx->internal->new_session_cb != NULL)) { 2205 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2206 if (!s->session_ctx->internal->new_session_cb(s, s->session)) 2207 SSL_SESSION_free(s->session); 2208 } 2209 2210 /* auto flush every 255 connections */ 2211 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2212 ((i & mode) == mode)) { 2213 if ((((mode & SSL_SESS_CACHE_CLIENT) ? 2214 s->session_ctx->internal->stats.sess_connect_good : 2215 s->session_ctx->internal->stats.sess_accept_good) & 0xff) == 0xff) { 2216 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2217 } 2218 } 2219} 2220 2221const SSL_METHOD * 2222SSL_get_ssl_method(SSL *s) 2223{ 2224 return (s->method); 2225} 2226 2227int 2228SSL_set_ssl_method(SSL *s, const SSL_METHOD *method) 2229{ 2230 int (*handshake_func)(SSL *) = NULL; 2231 int ret = 1; 2232 2233 if (s->method == method) 2234 return (ret); 2235 2236 if (s->internal->handshake_func == s->method->internal->ssl_connect) 2237 handshake_func = method->internal->ssl_connect; 2238 else if (s->internal->handshake_func == s->method->internal->ssl_accept) 2239 handshake_func = method->internal->ssl_accept; 2240 2241 if (s->method->internal->version == method->internal->version) { 2242 s->method = method; 2243 } else { 2244 s->method->internal->ssl_free(s); 2245 s->method = method; 2246 ret = s->method->internal->ssl_new(s); 2247 } 2248 s->internal->handshake_func = handshake_func; 2249 2250 return (ret); 2251} 2252 2253int 2254SSL_get_error(const SSL *s, int i) 2255{ 2256 int reason; 2257 unsigned long l; 2258 BIO *bio; 2259 2260 if (i > 0) 2261 return (SSL_ERROR_NONE); 2262 2263 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2264 * etc, where we do encode the error */ 2265 if ((l = ERR_peek_error()) != 0) { 2266 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2267 return (SSL_ERROR_SYSCALL); 2268 else 2269 return (SSL_ERROR_SSL); 2270 } 2271 2272 if ((i < 0) && SSL_want_read(s)) { 2273 bio = SSL_get_rbio(s); 2274 if (BIO_should_read(bio)) { 2275 return (SSL_ERROR_WANT_READ); 2276 } else if (BIO_should_write(bio)) { 2277 /* 2278 * This one doesn't make too much sense... We never 2279 * try to write to the rbio, and an application 2280 * program where rbio and wbio are separate couldn't 2281 * even know what it should wait for. However if we 2282 * ever set s->internal->rwstate incorrectly (so that we have 2283 * SSL_want_read(s) instead of SSL_want_write(s)) 2284 * and rbio and wbio *are* the same, this test works 2285 * around that bug; so it might be safer to keep it. 2286 */ 2287 return (SSL_ERROR_WANT_WRITE); 2288 } else if (BIO_should_io_special(bio)) { 2289 reason = BIO_get_retry_reason(bio); 2290 if (reason == BIO_RR_CONNECT) 2291 return (SSL_ERROR_WANT_CONNECT); 2292 else if (reason == BIO_RR_ACCEPT) 2293 return (SSL_ERROR_WANT_ACCEPT); 2294 else 2295 return (SSL_ERROR_SYSCALL); /* unknown */ 2296 } 2297 } 2298 2299 if ((i < 0) && SSL_want_write(s)) { 2300 bio = SSL_get_wbio(s); 2301 if (BIO_should_write(bio)) { 2302 return (SSL_ERROR_WANT_WRITE); 2303 } else if (BIO_should_read(bio)) { 2304 /* 2305 * See above (SSL_want_read(s) with 2306 * BIO_should_write(bio)) 2307 */ 2308 return (SSL_ERROR_WANT_READ); 2309 } else if (BIO_should_io_special(bio)) { 2310 reason = BIO_get_retry_reason(bio); 2311 if (reason == BIO_RR_CONNECT) 2312 return (SSL_ERROR_WANT_CONNECT); 2313 else if (reason == BIO_RR_ACCEPT) 2314 return (SSL_ERROR_WANT_ACCEPT); 2315 else 2316 return (SSL_ERROR_SYSCALL); 2317 } 2318 } 2319 if ((i < 0) && SSL_want_x509_lookup(s)) { 2320 return (SSL_ERROR_WANT_X509_LOOKUP); 2321 } 2322 2323 if (i == 0) { 2324 if ((s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) && 2325 (S3I(s)->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2326 return (SSL_ERROR_ZERO_RETURN); 2327 } 2328 return (SSL_ERROR_SYSCALL); 2329} 2330 2331int 2332SSL_do_handshake(SSL *s) 2333{ 2334 int ret = 1; 2335 2336 if (s->internal->handshake_func == NULL) { 2337 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2338 return (-1); 2339 } 2340 2341 s->method->internal->ssl_renegotiate_check(s); 2342 2343 if (SSL_in_init(s) || SSL_in_before(s)) { 2344 ret = s->internal->handshake_func(s); 2345 } 2346 return (ret); 2347} 2348 2349/* 2350 * For the next 2 functions, SSL_clear() sets shutdown and so 2351 * one of these calls will reset it 2352 */ 2353void 2354SSL_set_accept_state(SSL *s) 2355{ 2356 s->server = 1; 2357 s->internal->shutdown = 0; 2358 S3I(s)->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2359 s->internal->handshake_func = s->method->internal->ssl_accept; 2360 ssl_clear_cipher_state(s); 2361} 2362 2363void 2364SSL_set_connect_state(SSL *s) 2365{ 2366 s->server = 0; 2367 s->internal->shutdown = 0; 2368 S3I(s)->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2369 s->internal->handshake_func = s->method->internal->ssl_connect; 2370 ssl_clear_cipher_state(s); 2371} 2372 2373int 2374ssl_undefined_function(SSL *s) 2375{ 2376 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2377 return (0); 2378} 2379 2380int 2381ssl_undefined_void_function(void) 2382{ 2383 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2384 return (0); 2385} 2386 2387int 2388ssl_undefined_const_function(const SSL *s) 2389{ 2390 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2391 return (0); 2392} 2393 2394const char * 2395ssl_version_string(int ver) 2396{ 2397 switch (ver) { 2398 case DTLS1_VERSION: 2399 return (SSL_TXT_DTLS1); 2400 case TLS1_VERSION: 2401 return (SSL_TXT_TLSV1); 2402 case TLS1_1_VERSION: 2403 return (SSL_TXT_TLSV1_1); 2404 case TLS1_2_VERSION: 2405 return (SSL_TXT_TLSV1_2); 2406 case TLS1_3_VERSION: 2407 return (SSL_TXT_TLSV1_3); 2408 default: 2409 return ("unknown"); 2410 } 2411} 2412 2413const char * 2414SSL_get_version(const SSL *s) 2415{ 2416 return ssl_version_string(s->version); 2417} 2418 2419SSL * 2420SSL_dup(SSL *s) 2421{ 2422 STACK_OF(X509_NAME) *sk; 2423 X509_NAME *xn; 2424 SSL *ret; 2425 int i; 2426 2427 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2428 goto err; 2429 2430 ret->version = s->version; 2431 ret->internal->type = s->internal->type; 2432 ret->method = s->method; 2433 2434 if (s->session != NULL) { 2435 if (!SSL_copy_session_id(ret, s)) 2436 goto err; 2437 } else { 2438 /* 2439 * No session has been established yet, so we have to expect 2440 * that s->cert or ret->cert will be changed later -- 2441 * they should not both point to the same object, 2442 * and thus we can't use SSL_copy_session_id. 2443 */ 2444 2445 ret->method->internal->ssl_free(ret); 2446 ret->method = s->method; 2447 ret->method->internal->ssl_new(ret); 2448 2449 ssl_cert_free(ret->cert); 2450 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2451 goto err; 2452 2453 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2454 s->sid_ctx_length)) 2455 goto err; 2456 } 2457 2458 ret->internal->options = s->internal->options; 2459 ret->internal->mode = s->internal->mode; 2460 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2461 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2462 ret->internal->msg_callback = s->internal->msg_callback; 2463 ret->internal->msg_callback_arg = s->internal->msg_callback_arg; 2464 SSL_set_verify(ret, SSL_get_verify_mode(s), 2465 SSL_get_verify_callback(s)); 2466 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2467 ret->internal->generate_session_id = s->internal->generate_session_id; 2468 2469 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2470 2471 ret->internal->debug = s->internal->debug; 2472 2473 /* copy app data, a little dangerous perhaps */ 2474 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2475 &ret->internal->ex_data, &s->internal->ex_data)) 2476 goto err; 2477 2478 /* setup rbio, and wbio */ 2479 if (s->rbio != NULL) { 2480 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2481 goto err; 2482 } 2483 if (s->wbio != NULL) { 2484 if (s->wbio != s->rbio) { 2485 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2486 goto err; 2487 } else 2488 ret->wbio = ret->rbio; 2489 } 2490 ret->internal->rwstate = s->internal->rwstate; 2491 ret->internal->in_handshake = s->internal->in_handshake; 2492 ret->internal->handshake_func = s->internal->handshake_func; 2493 ret->server = s->server; 2494 ret->internal->renegotiate = s->internal->renegotiate; 2495 ret->internal->new_session = s->internal->new_session; 2496 ret->internal->quiet_shutdown = s->internal->quiet_shutdown; 2497 ret->internal->shutdown = s->internal->shutdown; 2498 /* SSL_dup does not really work at any state, though */ 2499 S3I(ret)->hs.state = S3I(s)->hs.state; 2500 ret->internal->rstate = s->internal->rstate; 2501 2502 /* 2503 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2504 * ret->init_off 2505 */ 2506 ret->internal->init_num = 0; 2507 2508 ret->internal->hit = s->internal->hit; 2509 2510 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2511 2512 if (s->cipher_list != NULL) { 2513 if ((ret->cipher_list = 2514 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2515 goto err; 2516 } 2517 if (s->internal->cipher_list_tls13 != NULL) { 2518 if ((ret->internal->cipher_list_tls13 = 2519 sk_SSL_CIPHER_dup(s->internal->cipher_list_tls13)) == NULL) 2520 goto err; 2521 } 2522 2523 /* Dup the client_CA list */ 2524 if (s->internal->client_CA != NULL) { 2525 if ((sk = sk_X509_NAME_dup(s->internal->client_CA)) == NULL) goto err; 2526 ret->internal->client_CA = sk; 2527 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2528 xn = sk_X509_NAME_value(sk, i); 2529 if (sk_X509_NAME_set(sk, i, 2530 X509_NAME_dup(xn)) == NULL) { 2531 X509_NAME_free(xn); 2532 goto err; 2533 } 2534 } 2535 } 2536 2537 return ret; 2538 err: 2539 SSL_free(ret); 2540 return NULL; 2541} 2542 2543void 2544ssl_clear_cipher_state(SSL *s) 2545{ 2546 ssl_clear_cipher_read_state(s); 2547 ssl_clear_cipher_write_state(s); 2548} 2549 2550void 2551ssl_clear_cipher_read_state(SSL *s) 2552{ 2553 EVP_CIPHER_CTX_free(s->enc_read_ctx); 2554 s->enc_read_ctx = NULL; 2555 EVP_MD_CTX_free(s->read_hash); 2556 s->read_hash = NULL; 2557 2558 tls12_record_layer_clear_read_state(s->internal->rl); 2559 tls12_record_layer_set_read_seq_num(s->internal->rl, 2560 S3I(s)->read_sequence); 2561 2562 if (s->internal->aead_read_ctx != NULL) { 2563 EVP_AEAD_CTX_cleanup(&s->internal->aead_read_ctx->ctx); 2564 free(s->internal->aead_read_ctx); 2565 s->internal->aead_read_ctx = NULL; 2566 } 2567} 2568 2569void 2570ssl_clear_cipher_write_state(SSL *s) 2571{ 2572 EVP_CIPHER_CTX_free(s->internal->enc_write_ctx); 2573 s->internal->enc_write_ctx = NULL; 2574 EVP_MD_CTX_free(s->internal->write_hash); 2575 s->internal->write_hash = NULL; 2576 2577 tls12_record_layer_clear_write_state(s->internal->rl); 2578 tls12_record_layer_set_write_seq_num(s->internal->rl, 2579 S3I(s)->write_sequence); 2580 2581 if (s->internal->aead_write_ctx != NULL) { 2582 EVP_AEAD_CTX_cleanup(&s->internal->aead_write_ctx->ctx); 2583 free(s->internal->aead_write_ctx); 2584 s->internal->aead_write_ctx = NULL; 2585 } 2586} 2587 2588/* Fix this function so that it takes an optional type parameter */ 2589X509 * 2590SSL_get_certificate(const SSL *s) 2591{ 2592 return (s->cert->key->x509); 2593} 2594 2595/* Fix this function so that it takes an optional type parameter */ 2596EVP_PKEY * 2597SSL_get_privatekey(const SSL *s) 2598{ 2599 return (s->cert->key->privatekey); 2600} 2601 2602const SSL_CIPHER * 2603SSL_get_current_cipher(const SSL *s) 2604{ 2605 if ((s->session != NULL) && (s->session->cipher != NULL)) 2606 return (s->session->cipher); 2607 return (NULL); 2608} 2609const void * 2610SSL_get_current_compression(SSL *s) 2611{ 2612 return (NULL); 2613} 2614 2615const void * 2616SSL_get_current_expansion(SSL *s) 2617{ 2618 return (NULL); 2619} 2620 2621size_t 2622SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 2623{ 2624 size_t len = sizeof(s->s3->client_random); 2625 2626 if (out == NULL) 2627 return len; 2628 2629 if (len > max_out) 2630 len = max_out; 2631 2632 memcpy(out, s->s3->client_random, len); 2633 2634 return len; 2635} 2636 2637size_t 2638SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 2639{ 2640 size_t len = sizeof(s->s3->server_random); 2641 2642 if (out == NULL) 2643 return len; 2644 2645 if (len > max_out) 2646 len = max_out; 2647 2648 memcpy(out, s->s3->server_random, len); 2649 2650 return len; 2651} 2652 2653int 2654ssl_init_wbio_buffer(SSL *s, int push) 2655{ 2656 BIO *bbio; 2657 2658 if (s->bbio == NULL) { 2659 bbio = BIO_new(BIO_f_buffer()); 2660 if (bbio == NULL) 2661 return (0); 2662 s->bbio = bbio; 2663 } else { 2664 bbio = s->bbio; 2665 if (s->bbio == s->wbio) 2666 s->wbio = BIO_pop(s->wbio); 2667 } 2668 (void)BIO_reset(bbio); 2669/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2670 if (!BIO_set_read_buffer_size(bbio, 1)) { 2671 SSLerror(s, ERR_R_BUF_LIB); 2672 return (0); 2673 } 2674 if (push) { 2675 if (s->wbio != bbio) 2676 s->wbio = BIO_push(bbio, s->wbio); 2677 } else { 2678 if (s->wbio == bbio) 2679 s->wbio = BIO_pop(bbio); 2680 } 2681 return (1); 2682} 2683 2684void 2685ssl_free_wbio_buffer(SSL *s) 2686{ 2687 if (s == NULL) 2688 return; 2689 2690 if (s->bbio == NULL) 2691 return; 2692 2693 if (s->bbio == s->wbio) { 2694 /* remove buffering */ 2695 s->wbio = BIO_pop(s->wbio); 2696 } 2697 BIO_free(s->bbio); 2698 s->bbio = NULL; 2699} 2700 2701void 2702SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 2703{ 2704 ctx->internal->quiet_shutdown = mode; 2705} 2706 2707int 2708SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2709{ 2710 return (ctx->internal->quiet_shutdown); 2711} 2712 2713void 2714SSL_set_quiet_shutdown(SSL *s, int mode) 2715{ 2716 s->internal->quiet_shutdown = mode; 2717} 2718 2719int 2720SSL_get_quiet_shutdown(const SSL *s) 2721{ 2722 return (s->internal->quiet_shutdown); 2723} 2724 2725void 2726SSL_set_shutdown(SSL *s, int mode) 2727{ 2728 s->internal->shutdown = mode; 2729} 2730 2731int 2732SSL_get_shutdown(const SSL *s) 2733{ 2734 return (s->internal->shutdown); 2735} 2736 2737int 2738SSL_version(const SSL *s) 2739{ 2740 return (s->version); 2741} 2742 2743SSL_CTX * 2744SSL_get_SSL_CTX(const SSL *ssl) 2745{ 2746 return (ssl->ctx); 2747} 2748 2749SSL_CTX * 2750SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2751{ 2752 CERT *new_cert; 2753 2754 if (ctx == NULL) 2755 ctx = ssl->initial_ctx; 2756 if (ssl->ctx == ctx) 2757 return (ssl->ctx); 2758 2759 if ((new_cert = ssl_cert_dup(ctx->internal->cert)) == NULL) 2760 return NULL; 2761 ssl_cert_free(ssl->cert); 2762 ssl->cert = new_cert; 2763 2764 SSL_CTX_up_ref(ctx); 2765 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2766 ssl->ctx = ctx; 2767 2768 return (ssl->ctx); 2769} 2770 2771int 2772SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2773{ 2774 return (X509_STORE_set_default_paths(ctx->cert_store)); 2775} 2776 2777int 2778SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2779 const char *CApath) 2780{ 2781 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 2782} 2783 2784int 2785SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 2786{ 2787 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 2788} 2789 2790void 2791SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 2792{ 2793 ssl->internal->info_callback = cb; 2794} 2795 2796void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 2797{ 2798 return (ssl->internal->info_callback); 2799} 2800 2801int 2802SSL_state(const SSL *ssl) 2803{ 2804 return (S3I(ssl)->hs.state); 2805} 2806 2807void 2808SSL_set_state(SSL *ssl, int state) 2809{ 2810 S3I(ssl)->hs.state = state; 2811} 2812 2813void 2814SSL_set_verify_result(SSL *ssl, long arg) 2815{ 2816 ssl->verify_result = arg; 2817} 2818 2819long 2820SSL_get_verify_result(const SSL *ssl) 2821{ 2822 return (ssl->verify_result); 2823} 2824 2825int 2826SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2827 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2828{ 2829 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2830 new_func, dup_func, free_func)); 2831} 2832 2833int 2834SSL_set_ex_data(SSL *s, int idx, void *arg) 2835{ 2836 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2837} 2838 2839void * 2840SSL_get_ex_data(const SSL *s, int idx) 2841{ 2842 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2843} 2844 2845int 2846SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2847 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2848{ 2849 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2850 new_func, dup_func, free_func)); 2851} 2852 2853int 2854SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 2855{ 2856 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2857} 2858 2859void * 2860SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 2861{ 2862 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2863} 2864 2865int 2866ssl_ok(SSL *s) 2867{ 2868 return (1); 2869} 2870 2871X509_STORE * 2872SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2873{ 2874 return (ctx->cert_store); 2875} 2876 2877void 2878SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 2879{ 2880 X509_STORE_free(ctx->cert_store); 2881 ctx->cert_store = store; 2882} 2883 2884X509 * 2885SSL_CTX_get0_certificate(const SSL_CTX *ctx) 2886{ 2887 if (ctx->internal->cert == NULL) 2888 return NULL; 2889 2890 return ctx->internal->cert->key->x509; 2891} 2892 2893int 2894SSL_want(const SSL *s) 2895{ 2896 return (s->internal->rwstate); 2897} 2898 2899void 2900SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 2901 int keylength)) 2902{ 2903 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2904} 2905 2906void 2907SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 2908 int keylength)) 2909{ 2910 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2911} 2912 2913void 2914SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 2915 int keylength)) 2916{ 2917 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2918} 2919 2920void 2921SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 2922 int keylength)) 2923{ 2924 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2925} 2926 2927void 2928SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 2929 int is_export, int keylength)) 2930{ 2931 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 2932 (void (*)(void))ecdh); 2933} 2934 2935void 2936SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 2937 int keylength)) 2938{ 2939 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2940} 2941 2942 2943void 2944SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 2945 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2946{ 2947 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 2948 (void (*)(void))cb); 2949} 2950 2951void 2952SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 2953 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2954{ 2955 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2956} 2957 2958void 2959SSL_set_debug(SSL *s, int debug) 2960{ 2961 s->internal->debug = debug; 2962} 2963 2964int 2965SSL_cache_hit(SSL *s) 2966{ 2967 return (s->internal->hit); 2968} 2969 2970int 2971SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 2972{ 2973 return ctx->internal->min_version; 2974} 2975 2976int 2977SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 2978{ 2979 return ssl_version_set_min(ctx->method, version, 2980 ctx->internal->max_version, &ctx->internal->min_version); 2981} 2982 2983int 2984SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 2985{ 2986 return ctx->internal->max_version; 2987} 2988 2989int 2990SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 2991{ 2992 return ssl_version_set_max(ctx->method, version, 2993 ctx->internal->min_version, &ctx->internal->max_version); 2994} 2995 2996int 2997SSL_get_min_proto_version(SSL *ssl) 2998{ 2999 return ssl->internal->min_version; 3000} 3001 3002int 3003SSL_set_min_proto_version(SSL *ssl, uint16_t version) 3004{ 3005 return ssl_version_set_min(ssl->method, version, 3006 ssl->internal->max_version, &ssl->internal->min_version); 3007} 3008int 3009SSL_get_max_proto_version(SSL *ssl) 3010{ 3011 return ssl->internal->max_version; 3012} 3013 3014int 3015SSL_set_max_proto_version(SSL *ssl, uint16_t version) 3016{ 3017 return ssl_version_set_max(ssl->method, version, 3018 ssl->internal->min_version, &ssl->internal->max_version); 3019} 3020 3021static int 3022ssl_cipher_id_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 3023{ 3024 SSL_CIPHER const *a = a_; 3025 SSL_CIPHER const *b = b_; 3026 return ssl_cipher_id_cmp(a, b); 3027} 3028 3029SSL_CIPHER * 3030OBJ_bsearch_ssl_cipher_id(SSL_CIPHER *key, SSL_CIPHER const *base, int num) 3031{ 3032 return (SSL_CIPHER *)OBJ_bsearch_(key, base, num, sizeof(SSL_CIPHER), 3033 ssl_cipher_id_cmp_BSEARCH_CMP_FN); 3034} 3035