ssl_lib.c revision 1.225
1/* $OpenBSD: ssl_lib.c,v 1.225 2020/09/11 17:36:27 jsing 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 S3I(s)->hs.state = SSL_ST_BEFORE|((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT); 220 221 return (1); 222} 223 224/* Used to change an SSL_CTXs default SSL method type */ 225int 226SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 227{ 228 STACK_OF(SSL_CIPHER) *ciphers; 229 230 ctx->method = meth; 231 232 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 233 SSL_DEFAULT_CIPHER_LIST); 234 if (ciphers == NULL || sk_SSL_CIPHER_num(ciphers) <= 0) { 235 SSLerrorx(SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 236 return (0); 237 } 238 return (1); 239} 240 241SSL * 242SSL_new(SSL_CTX *ctx) 243{ 244 SSL *s; 245 246 if (ctx == NULL) { 247 SSLerrorx(SSL_R_NULL_SSL_CTX); 248 return (NULL); 249 } 250 if (ctx->method == NULL) { 251 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 252 return (NULL); 253 } 254 255 if ((s = calloc(1, sizeof(*s))) == NULL) 256 goto err; 257 if ((s->internal = calloc(1, sizeof(*s->internal))) == NULL) 258 goto err; 259 260 s->internal->min_version = ctx->internal->min_version; 261 s->internal->max_version = ctx->internal->max_version; 262 263 s->internal->options = ctx->internal->options; 264 s->internal->mode = ctx->internal->mode; 265 s->internal->max_cert_list = ctx->internal->max_cert_list; 266 267 if ((s->cert = ssl_cert_dup(ctx->internal->cert)) == NULL) 268 goto err; 269 270 s->internal->read_ahead = ctx->internal->read_ahead; 271 s->internal->msg_callback = ctx->internal->msg_callback; 272 s->internal->msg_callback_arg = ctx->internal->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->internal->verify_callback = ctx->internal->default_verify_callback; 278 s->internal->generate_session_id = ctx->internal->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->internal->quiet_shutdown = ctx->internal->quiet_shutdown; 285 s->max_send_fragment = ctx->internal->max_send_fragment; 286 287 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 288 s->ctx = ctx; 289 s->internal->tlsext_debug_cb = 0; 290 s->internal->tlsext_debug_arg = NULL; 291 s->internal->tlsext_ticket_expected = 0; 292 s->tlsext_status_type = -1; 293 s->internal->tlsext_status_expected = 0; 294 s->internal->tlsext_ocsp_ids = NULL; 295 s->internal->tlsext_ocsp_exts = NULL; 296 s->internal->tlsext_ocsp_resp = NULL; 297 s->internal->tlsext_ocsp_resp_len = 0; 298 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 299 s->initial_ctx = ctx; 300 301 if (ctx->internal->tlsext_ecpointformatlist != NULL) { 302 s->internal->tlsext_ecpointformatlist = 303 calloc(ctx->internal->tlsext_ecpointformatlist_length, 304 sizeof(ctx->internal->tlsext_ecpointformatlist[0])); 305 if (s->internal->tlsext_ecpointformatlist == NULL) 306 goto err; 307 memcpy(s->internal->tlsext_ecpointformatlist, 308 ctx->internal->tlsext_ecpointformatlist, 309 ctx->internal->tlsext_ecpointformatlist_length * 310 sizeof(ctx->internal->tlsext_ecpointformatlist[0])); 311 s->internal->tlsext_ecpointformatlist_length = 312 ctx->internal->tlsext_ecpointformatlist_length; 313 } 314 if (ctx->internal->tlsext_supportedgroups != NULL) { 315 s->internal->tlsext_supportedgroups = 316 calloc(ctx->internal->tlsext_supportedgroups_length, 317 sizeof(ctx->internal->tlsext_supportedgroups[0])); 318 if (s->internal->tlsext_supportedgroups == NULL) 319 goto err; 320 memcpy(s->internal->tlsext_supportedgroups, 321 ctx->internal->tlsext_supportedgroups, 322 ctx->internal->tlsext_supportedgroups_length * 323 sizeof(ctx->internal->tlsext_supportedgroups[0])); 324 s->internal->tlsext_supportedgroups_length = 325 ctx->internal->tlsext_supportedgroups_length; 326 } 327 328 if (s->ctx->internal->alpn_client_proto_list != NULL) { 329 s->internal->alpn_client_proto_list = 330 malloc(s->ctx->internal->alpn_client_proto_list_len); 331 if (s->internal->alpn_client_proto_list == NULL) 332 goto err; 333 memcpy(s->internal->alpn_client_proto_list, 334 s->ctx->internal->alpn_client_proto_list, 335 s->ctx->internal->alpn_client_proto_list_len); 336 s->internal->alpn_client_proto_list_len = 337 s->ctx->internal->alpn_client_proto_list_len; 338 } 339 340 s->verify_result = X509_V_OK; 341 342 s->method = ctx->method; 343 344 if (!s->method->internal->ssl_new(s)) 345 goto err; 346 347 if ((s->internal->rl = tls12_record_layer_new()) == NULL) 348 goto err; 349 350 s->references = 1; 351 s->server = (ctx->method->internal->ssl_accept == ssl_undefined_function) ? 0 : 1; 352 353 SSL_clear(s); 354 355 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 356 357 return (s); 358 359 err: 360 SSL_free(s); 361 SSLerrorx(ERR_R_MALLOC_FAILURE); 362 return (NULL); 363} 364 365int 366SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 367 unsigned int sid_ctx_len) 368{ 369 if (sid_ctx_len > sizeof ctx->sid_ctx) { 370 SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 371 return (0); 372 } 373 ctx->sid_ctx_length = sid_ctx_len; 374 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 375 376 return (1); 377} 378 379int 380SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 381 unsigned int sid_ctx_len) 382{ 383 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 384 SSLerror(ssl, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 385 return (0); 386 } 387 ssl->sid_ctx_length = sid_ctx_len; 388 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 389 390 return (1); 391} 392 393int 394SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 395{ 396 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 397 ctx->internal->generate_session_id = cb; 398 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 399 return (1); 400} 401 402int 403SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 404{ 405 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 406 ssl->internal->generate_session_id = cb; 407 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 408 return (1); 409} 410 411int 412SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 413 unsigned int id_len) 414{ 415 /* 416 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 417 * shows how we can "construct" a session to give us the desired 418 * check - ie. to find if there's a session in the hash table 419 * that would conflict with any new session built out of this 420 * id/id_len and the ssl_version in use by this SSL. 421 */ 422 SSL_SESSION r, *p; 423 424 if (id_len > sizeof r.session_id) 425 return (0); 426 427 r.ssl_version = ssl->version; 428 r.session_id_length = id_len; 429 memcpy(r.session_id, id, id_len); 430 431 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 432 p = lh_SSL_SESSION_retrieve(ssl->ctx->internal->sessions, &r); 433 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 434 return (p != NULL); 435} 436 437int 438SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 439{ 440 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 441} 442 443int 444SSL_set_purpose(SSL *s, int purpose) 445{ 446 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 447} 448 449int 450SSL_CTX_set_trust(SSL_CTX *s, int trust) 451{ 452 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 453} 454 455int 456SSL_set_trust(SSL *s, int trust) 457{ 458 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 459} 460 461int 462SSL_set1_host(SSL *s, const char *hostname) 463{ 464 struct in_addr ina; 465 struct in6_addr in6a; 466 467 if (hostname != NULL && *hostname != '\0' && 468 (inet_pton(AF_INET, hostname, &ina) == 1 || 469 inet_pton(AF_INET6, hostname, &in6a) == 1)) 470 return X509_VERIFY_PARAM_set1_ip_asc(s->param, hostname); 471 else 472 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); 473} 474 475X509_VERIFY_PARAM * 476SSL_CTX_get0_param(SSL_CTX *ctx) 477{ 478 return (ctx->param); 479} 480 481int 482SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 483{ 484 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 485} 486 487X509_VERIFY_PARAM * 488SSL_get0_param(SSL *ssl) 489{ 490 return (ssl->param); 491} 492 493int 494SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 495{ 496 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 497} 498 499void 500SSL_free(SSL *s) 501{ 502 int i; 503 504 if (s == NULL) 505 return; 506 507 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 508 if (i > 0) 509 return; 510 511 X509_VERIFY_PARAM_free(s->param); 512 513 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 514 515 if (s->bbio != NULL) { 516 /* If the buffering BIO is in place, pop it off */ 517 if (s->bbio == s->wbio) { 518 s->wbio = BIO_pop(s->wbio); 519 } 520 BIO_free(s->bbio); 521 s->bbio = NULL; 522 } 523 524 if (s->rbio != s->wbio) 525 BIO_free_all(s->rbio); 526 BIO_free_all(s->wbio); 527 528 tls13_ctx_free(s->internal->tls13); 529 530 BUF_MEM_free(s->internal->init_buf); 531 532 sk_SSL_CIPHER_free(s->cipher_list); 533 534 /* Make the next call work :-) */ 535 if (s->session != NULL) { 536 ssl_clear_bad_session(s); 537 SSL_SESSION_free(s->session); 538 } 539 540 ssl_clear_cipher_state(s); 541 542 ssl_cert_free(s->cert); 543 544 free(s->tlsext_hostname); 545 SSL_CTX_free(s->initial_ctx); 546 547 free(s->internal->tlsext_ecpointformatlist); 548 free(s->internal->tlsext_supportedgroups); 549 550 sk_X509_EXTENSION_pop_free(s->internal->tlsext_ocsp_exts, 551 X509_EXTENSION_free); 552 sk_OCSP_RESPID_pop_free(s->internal->tlsext_ocsp_ids, OCSP_RESPID_free); 553 free(s->internal->tlsext_ocsp_resp); 554 555 sk_X509_NAME_pop_free(s->internal->client_CA, X509_NAME_free); 556 557 if (s->method != NULL) 558 s->method->internal->ssl_free(s); 559 560 SSL_CTX_free(s->ctx); 561 562 free(s->internal->alpn_client_proto_list); 563 564#ifndef OPENSSL_NO_SRTP 565 sk_SRTP_PROTECTION_PROFILE_free(s->internal->srtp_profiles); 566#endif 567 568 tls12_record_layer_free(s->internal->rl); 569 570 free(s->internal); 571 free(s); 572} 573 574int 575SSL_up_ref(SSL *s) 576{ 577 int refs = CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL); 578 return (refs > 1) ? 1 : 0; 579} 580 581void 582SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 583{ 584 /* If the output buffering BIO is still in place, remove it */ 585 if (s->bbio != NULL) { 586 if (s->wbio == s->bbio) { 587 s->wbio = s->wbio->next_bio; 588 s->bbio->next_bio = NULL; 589 } 590 } 591 592 if (s->rbio != rbio && s->rbio != s->wbio) 593 BIO_free_all(s->rbio); 594 if (s->wbio != wbio) 595 BIO_free_all(s->wbio); 596 s->rbio = rbio; 597 s->wbio = wbio; 598} 599 600BIO * 601SSL_get_rbio(const SSL *s) 602{ 603 return (s->rbio); 604} 605 606BIO * 607SSL_get_wbio(const SSL *s) 608{ 609 return (s->wbio); 610} 611 612int 613SSL_get_fd(const SSL *s) 614{ 615 return (SSL_get_rfd(s)); 616} 617 618int 619SSL_get_rfd(const SSL *s) 620{ 621 int ret = -1; 622 BIO *b, *r; 623 624 b = SSL_get_rbio(s); 625 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 626 if (r != NULL) 627 BIO_get_fd(r, &ret); 628 return (ret); 629} 630 631int 632SSL_get_wfd(const SSL *s) 633{ 634 int ret = -1; 635 BIO *b, *r; 636 637 b = SSL_get_wbio(s); 638 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 639 if (r != NULL) 640 BIO_get_fd(r, &ret); 641 return (ret); 642} 643 644int 645SSL_set_fd(SSL *s, int fd) 646{ 647 int ret = 0; 648 BIO *bio = NULL; 649 650 bio = BIO_new(BIO_s_socket()); 651 652 if (bio == NULL) { 653 SSLerror(s, ERR_R_BUF_LIB); 654 goto err; 655 } 656 BIO_set_fd(bio, fd, BIO_NOCLOSE); 657 SSL_set_bio(s, bio, bio); 658 ret = 1; 659err: 660 return (ret); 661} 662 663int 664SSL_set_wfd(SSL *s, int fd) 665{ 666 int ret = 0; 667 BIO *bio = NULL; 668 669 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 670 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 671 bio = BIO_new(BIO_s_socket()); 672 673 if (bio == NULL) { 674 SSLerror(s, ERR_R_BUF_LIB); 675 goto err; 676 } 677 BIO_set_fd(bio, fd, BIO_NOCLOSE); 678 SSL_set_bio(s, SSL_get_rbio(s), bio); 679 } else 680 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 681 ret = 1; 682err: 683 return (ret); 684} 685 686int 687SSL_set_rfd(SSL *s, int fd) 688{ 689 int ret = 0; 690 BIO *bio = NULL; 691 692 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 693 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 694 bio = BIO_new(BIO_s_socket()); 695 696 if (bio == NULL) { 697 SSLerror(s, ERR_R_BUF_LIB); 698 goto err; 699 } 700 BIO_set_fd(bio, fd, BIO_NOCLOSE); 701 SSL_set_bio(s, bio, SSL_get_wbio(s)); 702 } else 703 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 704 ret = 1; 705err: 706 return (ret); 707} 708 709 710/* return length of latest Finished message we sent, copy to 'buf' */ 711size_t 712SSL_get_finished(const SSL *s, void *buf, size_t count) 713{ 714 size_t ret; 715 716 ret = S3I(s)->tmp.finish_md_len; 717 if (count > ret) 718 count = ret; 719 memcpy(buf, S3I(s)->tmp.finish_md, count); 720 return (ret); 721} 722 723/* return length of latest Finished message we expected, copy to 'buf' */ 724size_t 725SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 726{ 727 size_t ret; 728 729 ret = S3I(s)->tmp.peer_finish_md_len; 730 if (count > ret) 731 count = ret; 732 memcpy(buf, S3I(s)->tmp.peer_finish_md, count); 733 return (ret); 734} 735 736 737int 738SSL_get_verify_mode(const SSL *s) 739{ 740 return (s->verify_mode); 741} 742 743int 744SSL_get_verify_depth(const SSL *s) 745{ 746 return (X509_VERIFY_PARAM_get_depth(s->param)); 747} 748 749int 750(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 751{ 752 return (s->internal->verify_callback); 753} 754 755int 756SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 757{ 758 return (ctx->verify_mode); 759} 760 761int 762SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 763{ 764 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 765} 766 767int 768(*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 769{ 770 return (ctx->internal->default_verify_callback); 771} 772 773void 774SSL_set_verify(SSL *s, int mode, 775 int (*callback)(int ok, X509_STORE_CTX *ctx)) 776{ 777 s->verify_mode = mode; 778 if (callback != NULL) 779 s->internal->verify_callback = callback; 780} 781 782void 783SSL_set_verify_depth(SSL *s, int depth) 784{ 785 X509_VERIFY_PARAM_set_depth(s->param, depth); 786} 787 788void 789SSL_set_read_ahead(SSL *s, int yes) 790{ 791 s->internal->read_ahead = yes; 792} 793 794int 795SSL_get_read_ahead(const SSL *s) 796{ 797 return (s->internal->read_ahead); 798} 799 800int 801SSL_pending(const SSL *s) 802{ 803 return (s->method->internal->ssl_pending(s)); 804} 805 806X509 * 807SSL_get_peer_certificate(const SSL *s) 808{ 809 X509 *r; 810 811 if ((s == NULL) || (s->session == NULL)) 812 r = NULL; 813 else 814 r = s->session->peer; 815 816 if (r == NULL) 817 return (r); 818 819 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509); 820 821 return (r); 822} 823 824STACK_OF(X509) * 825SSL_get_peer_cert_chain(const SSL *s) 826{ 827 STACK_OF(X509) *r; 828 829 if ((s == NULL) || (s->session == NULL) || 830 (SSI(s)->sess_cert == NULL)) 831 r = NULL; 832 else 833 r = SSI(s)->sess_cert->cert_chain; 834 835 /* 836 * If we are a client, cert_chain includes the peer's own 837 * certificate; 838 * if we are a server, it does not. 839 */ 840 return (r); 841} 842 843/* 844 * Now in theory, since the calling process own 't' it should be safe to 845 * modify. We need to be able to read f without being hassled 846 */ 847int 848SSL_copy_session_id(SSL *t, const SSL *f) 849{ 850 CERT *tmp; 851 852 /* Do we need to do SSL locking? */ 853 if (!SSL_set_session(t, SSL_get_session(f))) 854 return 0; 855 856 /* What if we are set up for one protocol but want to talk another? */ 857 if (t->method != f->method) { 858 t->method->internal->ssl_free(t); 859 t->method = f->method; 860 if (!t->method->internal->ssl_new(t)) 861 return 0; 862 } 863 864 tmp = t->cert; 865 if (f->cert != NULL) { 866 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 867 t->cert = f->cert; 868 } else 869 t->cert = NULL; 870 ssl_cert_free(tmp); 871 872 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) 873 return 0; 874 875 return 1; 876} 877 878/* Fix this so it checks all the valid key/cert options */ 879int 880SSL_CTX_check_private_key(const SSL_CTX *ctx) 881{ 882 if ((ctx == NULL) || (ctx->internal->cert == NULL) || 883 (ctx->internal->cert->key->x509 == NULL)) { 884 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED); 885 return (0); 886 } 887 if (ctx->internal->cert->key->privatekey == NULL) { 888 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED); 889 return (0); 890 } 891 return (X509_check_private_key(ctx->internal->cert->key->x509, 892 ctx->internal->cert->key->privatekey)); 893} 894 895/* Fix this function so that it takes an optional type parameter */ 896int 897SSL_check_private_key(const SSL *ssl) 898{ 899 if (ssl == NULL) { 900 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); 901 return (0); 902 } 903 if (ssl->cert == NULL) { 904 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 905 return (0); 906 } 907 if (ssl->cert->key->x509 == NULL) { 908 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 909 return (0); 910 } 911 if (ssl->cert->key->privatekey == NULL) { 912 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 913 return (0); 914 } 915 return (X509_check_private_key(ssl->cert->key->x509, 916 ssl->cert->key->privatekey)); 917} 918 919int 920SSL_accept(SSL *s) 921{ 922 if (s->internal->handshake_func == NULL) 923 SSL_set_accept_state(s); /* Not properly initialized yet */ 924 925 return (s->method->internal->ssl_accept(s)); 926} 927 928int 929SSL_connect(SSL *s) 930{ 931 if (s->internal->handshake_func == NULL) 932 SSL_set_connect_state(s); /* Not properly initialized yet */ 933 934 return (s->method->internal->ssl_connect(s)); 935} 936 937int 938SSL_is_server(const SSL *s) 939{ 940 return s->server; 941} 942 943static long 944ssl_get_default_timeout() 945{ 946 /* 947 * 2 hours, the 24 hours mentioned in the TLSv1 spec 948 * is way too long for http, the cache would over fill. 949 */ 950 return (2 * 60 * 60); 951} 952 953long 954SSL_get_default_timeout(const SSL *s) 955{ 956 return (ssl_get_default_timeout()); 957} 958 959int 960SSL_read(SSL *s, void *buf, int num) 961{ 962 if (s->internal->handshake_func == NULL) { 963 SSLerror(s, SSL_R_UNINITIALIZED); 964 return (-1); 965 } 966 967 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 968 s->internal->rwstate = SSL_NOTHING; 969 return (0); 970 } 971 return ssl3_read(s, buf, num); 972} 973 974int 975SSL_peek(SSL *s, void *buf, int num) 976{ 977 if (s->internal->handshake_func == NULL) { 978 SSLerror(s, SSL_R_UNINITIALIZED); 979 return (-1); 980 } 981 982 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 983 return (0); 984 } 985 return ssl3_peek(s, buf, num); 986} 987 988int 989SSL_write(SSL *s, const void *buf, int num) 990{ 991 if (s->internal->handshake_func == NULL) { 992 SSLerror(s, SSL_R_UNINITIALIZED); 993 return (-1); 994 } 995 996 if (s->internal->shutdown & SSL_SENT_SHUTDOWN) { 997 s->internal->rwstate = SSL_NOTHING; 998 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 999 return (-1); 1000 } 1001 return ssl3_write(s, buf, num); 1002} 1003 1004int 1005SSL_shutdown(SSL *s) 1006{ 1007 /* 1008 * Note that this function behaves differently from what one might 1009 * expect. Return values are 0 for no success (yet), 1010 * 1 for success; but calling it once is usually not enough, 1011 * even if blocking I/O is used (see ssl3_shutdown). 1012 */ 1013 1014 if (s->internal->handshake_func == NULL) { 1015 SSLerror(s, SSL_R_UNINITIALIZED); 1016 return (-1); 1017 } 1018 1019 if (s != NULL && !SSL_in_init(s)) 1020 return (s->method->internal->ssl_shutdown(s)); 1021 1022 return (1); 1023} 1024 1025int 1026SSL_renegotiate(SSL *s) 1027{ 1028 if (s->internal->renegotiate == 0) 1029 s->internal->renegotiate = 1; 1030 1031 s->internal->new_session = 1; 1032 1033 return (s->method->internal->ssl_renegotiate(s)); 1034} 1035 1036int 1037SSL_renegotiate_abbreviated(SSL *s) 1038{ 1039 if (s->internal->renegotiate == 0) 1040 s->internal->renegotiate = 1; 1041 1042 s->internal->new_session = 0; 1043 1044 return (s->method->internal->ssl_renegotiate(s)); 1045} 1046 1047int 1048SSL_renegotiate_pending(SSL *s) 1049{ 1050 /* 1051 * Becomes true when negotiation is requested; 1052 * false again once a handshake has finished. 1053 */ 1054 return (s->internal->renegotiate != 0); 1055} 1056 1057long 1058SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1059{ 1060 long l; 1061 1062 switch (cmd) { 1063 case SSL_CTRL_GET_READ_AHEAD: 1064 return (s->internal->read_ahead); 1065 case SSL_CTRL_SET_READ_AHEAD: 1066 l = s->internal->read_ahead; 1067 s->internal->read_ahead = larg; 1068 return (l); 1069 1070 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1071 s->internal->msg_callback_arg = parg; 1072 return (1); 1073 1074 case SSL_CTRL_OPTIONS: 1075 return (s->internal->options|=larg); 1076 case SSL_CTRL_CLEAR_OPTIONS: 1077 return (s->internal->options&=~larg); 1078 case SSL_CTRL_MODE: 1079 return (s->internal->mode|=larg); 1080 case SSL_CTRL_CLEAR_MODE: 1081 return (s->internal->mode &=~larg); 1082 case SSL_CTRL_GET_MAX_CERT_LIST: 1083 return (s->internal->max_cert_list); 1084 case SSL_CTRL_SET_MAX_CERT_LIST: 1085 l = s->internal->max_cert_list; 1086 s->internal->max_cert_list = larg; 1087 return (l); 1088 case SSL_CTRL_SET_MTU: 1089#ifndef OPENSSL_NO_DTLS1 1090 if (larg < (long)dtls1_min_mtu()) 1091 return (0); 1092#endif 1093 if (SSL_IS_DTLS(s)) { 1094 D1I(s)->mtu = larg; 1095 return (larg); 1096 } 1097 return (0); 1098 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1099 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1100 return (0); 1101 s->max_send_fragment = larg; 1102 return (1); 1103 case SSL_CTRL_GET_RI_SUPPORT: 1104 if (s->s3) 1105 return (S3I(s)->send_connection_binding); 1106 else return (0); 1107 default: 1108 if (SSL_IS_DTLS(s)) 1109 return dtls1_ctrl(s, cmd, larg, parg); 1110 return ssl3_ctrl(s, cmd, larg, parg); 1111 } 1112} 1113 1114long 1115SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1116{ 1117 switch (cmd) { 1118 case SSL_CTRL_SET_MSG_CALLBACK: 1119 s->internal->msg_callback = (void (*)(int write_p, int version, 1120 int content_type, const void *buf, size_t len, 1121 SSL *ssl, void *arg))(fp); 1122 return (1); 1123 1124 default: 1125 return (ssl3_callback_ctrl(s, cmd, fp)); 1126 } 1127} 1128 1129struct lhash_st_SSL_SESSION * 1130SSL_CTX_sessions(SSL_CTX *ctx) 1131{ 1132 return (ctx->internal->sessions); 1133} 1134 1135long 1136SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1137{ 1138 long l; 1139 1140 switch (cmd) { 1141 case SSL_CTRL_GET_READ_AHEAD: 1142 return (ctx->internal->read_ahead); 1143 case SSL_CTRL_SET_READ_AHEAD: 1144 l = ctx->internal->read_ahead; 1145 ctx->internal->read_ahead = larg; 1146 return (l); 1147 1148 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1149 ctx->internal->msg_callback_arg = parg; 1150 return (1); 1151 1152 case SSL_CTRL_GET_MAX_CERT_LIST: 1153 return (ctx->internal->max_cert_list); 1154 case SSL_CTRL_SET_MAX_CERT_LIST: 1155 l = ctx->internal->max_cert_list; 1156 ctx->internal->max_cert_list = larg; 1157 return (l); 1158 1159 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1160 l = ctx->internal->session_cache_size; 1161 ctx->internal->session_cache_size = larg; 1162 return (l); 1163 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1164 return (ctx->internal->session_cache_size); 1165 case SSL_CTRL_SET_SESS_CACHE_MODE: 1166 l = ctx->internal->session_cache_mode; 1167 ctx->internal->session_cache_mode = larg; 1168 return (l); 1169 case SSL_CTRL_GET_SESS_CACHE_MODE: 1170 return (ctx->internal->session_cache_mode); 1171 1172 case SSL_CTRL_SESS_NUMBER: 1173 return (lh_SSL_SESSION_num_items(ctx->internal->sessions)); 1174 case SSL_CTRL_SESS_CONNECT: 1175 return (ctx->internal->stats.sess_connect); 1176 case SSL_CTRL_SESS_CONNECT_GOOD: 1177 return (ctx->internal->stats.sess_connect_good); 1178 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1179 return (ctx->internal->stats.sess_connect_renegotiate); 1180 case SSL_CTRL_SESS_ACCEPT: 1181 return (ctx->internal->stats.sess_accept); 1182 case SSL_CTRL_SESS_ACCEPT_GOOD: 1183 return (ctx->internal->stats.sess_accept_good); 1184 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1185 return (ctx->internal->stats.sess_accept_renegotiate); 1186 case SSL_CTRL_SESS_HIT: 1187 return (ctx->internal->stats.sess_hit); 1188 case SSL_CTRL_SESS_CB_HIT: 1189 return (ctx->internal->stats.sess_cb_hit); 1190 case SSL_CTRL_SESS_MISSES: 1191 return (ctx->internal->stats.sess_miss); 1192 case SSL_CTRL_SESS_TIMEOUTS: 1193 return (ctx->internal->stats.sess_timeout); 1194 case SSL_CTRL_SESS_CACHE_FULL: 1195 return (ctx->internal->stats.sess_cache_full); 1196 case SSL_CTRL_OPTIONS: 1197 return (ctx->internal->options|=larg); 1198 case SSL_CTRL_CLEAR_OPTIONS: 1199 return (ctx->internal->options&=~larg); 1200 case SSL_CTRL_MODE: 1201 return (ctx->internal->mode|=larg); 1202 case SSL_CTRL_CLEAR_MODE: 1203 return (ctx->internal->mode&=~larg); 1204 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1205 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1206 return (0); 1207 ctx->internal->max_send_fragment = larg; 1208 return (1); 1209 default: 1210 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1211 } 1212} 1213 1214long 1215SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1216{ 1217 switch (cmd) { 1218 case SSL_CTRL_SET_MSG_CALLBACK: 1219 ctx->internal->msg_callback = (void (*)(int write_p, int version, 1220 int content_type, const void *buf, size_t len, SSL *ssl, 1221 void *arg))(fp); 1222 return (1); 1223 1224 default: 1225 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1226 } 1227} 1228 1229int 1230ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1231{ 1232 long l; 1233 1234 l = a->id - b->id; 1235 if (l == 0L) 1236 return (0); 1237 else 1238 return ((l > 0) ? 1:-1); 1239} 1240 1241STACK_OF(SSL_CIPHER) * 1242SSL_get_ciphers(const SSL *s) 1243{ 1244 if (s == NULL) 1245 return (NULL); 1246 if (s->cipher_list != NULL) 1247 return (s->cipher_list); 1248 1249 return (s->ctx->cipher_list); 1250} 1251 1252STACK_OF(SSL_CIPHER) * 1253SSL_get_client_ciphers(const SSL *s) 1254{ 1255 if (s == NULL || s->session == NULL || !s->server) 1256 return NULL; 1257 return s->session->ciphers; 1258} 1259 1260STACK_OF(SSL_CIPHER) * 1261SSL_get1_supported_ciphers(SSL *s) 1262{ 1263 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers; 1264 const SSL_CIPHER *cipher; 1265 uint16_t min_vers, max_vers; 1266 int i; 1267 1268 if (s == NULL) 1269 return NULL; 1270 if (!ssl_supported_version_range(s, &min_vers, &max_vers)) 1271 return NULL; 1272 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1273 return NULL; 1274 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL) 1275 return NULL; 1276 1277 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1278 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL) 1279 goto err; 1280 if (!ssl_cipher_allowed_in_version_range(cipher, min_vers, 1281 max_vers)) 1282 continue; 1283 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher)) 1284 goto err; 1285 } 1286 1287 if (sk_SSL_CIPHER_num(supported_ciphers) > 0) 1288 return supported_ciphers; 1289 1290 err: 1291 sk_SSL_CIPHER_free(supported_ciphers); 1292 return NULL; 1293} 1294 1295/* See if we have any ECC cipher suites. */ 1296int 1297ssl_has_ecc_ciphers(SSL *s) 1298{ 1299 STACK_OF(SSL_CIPHER) *ciphers; 1300 unsigned long alg_k, alg_a; 1301 SSL_CIPHER *cipher; 1302 int i; 1303 1304 if (s->version == DTLS1_VERSION) 1305 return 0; 1306 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1307 return 0; 1308 1309 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1310 cipher = sk_SSL_CIPHER_value(ciphers, i); 1311 1312 alg_k = cipher->algorithm_mkey; 1313 alg_a = cipher->algorithm_auth; 1314 1315 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1316 return 1; 1317 } 1318 1319 return 0; 1320} 1321 1322/* The old interface to get the same thing as SSL_get_ciphers(). */ 1323const char * 1324SSL_get_cipher_list(const SSL *s, int n) 1325{ 1326 STACK_OF(SSL_CIPHER) *ciphers; 1327 const SSL_CIPHER *cipher; 1328 1329 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1330 return (NULL); 1331 if ((cipher = sk_SSL_CIPHER_value(ciphers, n)) == NULL) 1332 return (NULL); 1333 1334 return (cipher->name); 1335} 1336 1337STACK_OF(SSL_CIPHER) * 1338SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1339{ 1340 return ctx->cipher_list; 1341} 1342 1343/* Specify the ciphers to be used by default by the SSL_CTX. */ 1344int 1345SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1346{ 1347 STACK_OF(SSL_CIPHER) *ciphers; 1348 1349 /* 1350 * ssl_create_cipher_list may return an empty stack if it was unable to 1351 * find a cipher matching the given rule string (for example if the 1352 * rule string specifies a cipher which has been disabled). This is not 1353 * an error as far as ssl_create_cipher_list is concerned, and hence 1354 * ctx->cipher_list has been updated. 1355 */ 1356 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, str); 1357 if (ciphers == NULL) { 1358 return (0); 1359 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1360 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1361 return (0); 1362 } 1363 return (1); 1364} 1365 1366/* Specify the ciphers to be used by the SSL. */ 1367int 1368SSL_set_cipher_list(SSL *s, const char *str) 1369{ 1370 STACK_OF(SSL_CIPHER) *ciphers; 1371 1372 /* See comment in SSL_CTX_set_cipher_list. */ 1373 ciphers = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, str); 1374 if (ciphers == NULL) { 1375 return (0); 1376 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1377 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1378 return (0); 1379 } 1380 return (1); 1381} 1382 1383char * 1384SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1385{ 1386 STACK_OF(SSL_CIPHER) *ciphers; 1387 const SSL_CIPHER *cipher; 1388 size_t curlen = 0; 1389 char *end; 1390 int i; 1391 1392 if (s->session == NULL || s->session->ciphers == NULL || len < 2) 1393 return (NULL); 1394 1395 ciphers = s->session->ciphers; 1396 if (sk_SSL_CIPHER_num(ciphers) == 0) 1397 return (NULL); 1398 1399 buf[0] = '\0'; 1400 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1401 cipher = sk_SSL_CIPHER_value(ciphers, i); 1402 end = buf + curlen; 1403 if (strlcat(buf, cipher->name, len) >= len || 1404 (curlen = strlcat(buf, ":", len)) >= len) { 1405 /* remove truncated cipher from list */ 1406 *end = '\0'; 1407 break; 1408 } 1409 } 1410 /* remove trailing colon */ 1411 if ((end = strrchr(buf, ':')) != NULL) 1412 *end = '\0'; 1413 return (buf); 1414} 1415 1416/* 1417 * Return a servername extension value if provided in Client Hello, or NULL. 1418 * So far, only host_name types are defined (RFC 3546). 1419 */ 1420const char * 1421SSL_get_servername(const SSL *s, const int type) 1422{ 1423 if (type != TLSEXT_NAMETYPE_host_name) 1424 return (NULL); 1425 1426 return (s->session && !s->tlsext_hostname ? 1427 s->session->tlsext_hostname : 1428 s->tlsext_hostname); 1429} 1430 1431int 1432SSL_get_servername_type(const SSL *s) 1433{ 1434 if (s->session && 1435 (!s->tlsext_hostname ? 1436 s->session->tlsext_hostname : s->tlsext_hostname)) 1437 return (TLSEXT_NAMETYPE_host_name); 1438 return (-1); 1439} 1440 1441/* 1442 * SSL_select_next_proto implements standard protocol selection. It is 1443 * expected that this function is called from the callback set by 1444 * SSL_CTX_set_alpn_select_cb. 1445 * 1446 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1447 * strings. The length byte itself is not included in the length. A byte 1448 * string of length 0 is invalid. No byte string may be truncated. 1449 * 1450 * It returns either: 1451 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1452 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1453 */ 1454int 1455SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1456 const unsigned char *server, unsigned int server_len, 1457 const unsigned char *client, unsigned int client_len) 1458{ 1459 unsigned int i, j; 1460 const unsigned char *result; 1461 int status = OPENSSL_NPN_UNSUPPORTED; 1462 1463 /* 1464 * For each protocol in server preference order, 1465 * see if we support it. 1466 */ 1467 for (i = 0; i < server_len; ) { 1468 for (j = 0; j < client_len; ) { 1469 if (server[i] == client[j] && 1470 memcmp(&server[i + 1], 1471 &client[j + 1], server[i]) == 0) { 1472 /* We found a match */ 1473 result = &server[i]; 1474 status = OPENSSL_NPN_NEGOTIATED; 1475 goto found; 1476 } 1477 j += client[j]; 1478 j++; 1479 } 1480 i += server[i]; 1481 i++; 1482 } 1483 1484 /* There's no overlap between our protocols and the server's list. */ 1485 result = client; 1486 status = OPENSSL_NPN_NO_OVERLAP; 1487 1488found: 1489 *out = (unsigned char *) result + 1; 1490 *outlen = result[0]; 1491 return (status); 1492} 1493 1494/* SSL_get0_next_proto_negotiated is deprecated. */ 1495void 1496SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1497 unsigned int *len) 1498{ 1499 *data = NULL; 1500 *len = 0; 1501} 1502 1503/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1504void 1505SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1506 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1507{ 1508} 1509 1510/* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1511void 1512SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1513 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1514 unsigned int inlen, void *arg), void *arg) 1515{ 1516} 1517 1518/* 1519 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1520 * protocols, which must be in wire-format (i.e. a series of non-empty, 1521 * 8-bit length-prefixed strings). Returns 0 on success. 1522 */ 1523int 1524SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1525 unsigned int protos_len) 1526{ 1527 int failed = 1; 1528 1529 if (protos == NULL || protos_len == 0) 1530 goto err; 1531 1532 free(ctx->internal->alpn_client_proto_list); 1533 ctx->internal->alpn_client_proto_list = NULL; 1534 ctx->internal->alpn_client_proto_list_len = 0; 1535 1536 if ((ctx->internal->alpn_client_proto_list = malloc(protos_len)) 1537 == NULL) 1538 goto err; 1539 ctx->internal->alpn_client_proto_list_len = protos_len; 1540 1541 memcpy(ctx->internal->alpn_client_proto_list, protos, protos_len); 1542 1543 failed = 0; 1544 1545 err: 1546 /* NOTE: Return values are the reverse of what you expect. */ 1547 return (failed); 1548} 1549 1550/* 1551 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1552 * protocols, which must be in wire-format (i.e. a series of non-empty, 1553 * 8-bit length-prefixed strings). Returns 0 on success. 1554 */ 1555int 1556SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1557 unsigned int protos_len) 1558{ 1559 int failed = 1; 1560 1561 if (protos == NULL || protos_len == 0) 1562 goto err; 1563 1564 free(ssl->internal->alpn_client_proto_list); 1565 ssl->internal->alpn_client_proto_list = NULL; 1566 ssl->internal->alpn_client_proto_list_len = 0; 1567 1568 if ((ssl->internal->alpn_client_proto_list = malloc(protos_len)) 1569 == NULL) 1570 goto err; 1571 ssl->internal->alpn_client_proto_list_len = protos_len; 1572 1573 memcpy(ssl->internal->alpn_client_proto_list, protos, protos_len); 1574 1575 failed = 0; 1576 1577 err: 1578 /* NOTE: Return values are the reverse of what you expect. */ 1579 return (failed); 1580} 1581 1582/* 1583 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1584 * ClientHello processing in order to select an ALPN protocol from the 1585 * client's list of offered protocols. 1586 */ 1587void 1588SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1589 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1590 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1591{ 1592 ctx->internal->alpn_select_cb = cb; 1593 ctx->internal->alpn_select_cb_arg = arg; 1594} 1595 1596/* 1597 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1598 * it sets data to point to len bytes of protocol name (not including the 1599 * leading length-prefix byte). If the server didn't respond with* a negotiated 1600 * protocol then len will be zero. 1601 */ 1602void 1603SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1604 unsigned int *len) 1605{ 1606 *data = NULL; 1607 *len = 0; 1608 1609 *data = ssl->s3->internal->alpn_selected; 1610 *len = ssl->s3->internal->alpn_selected_len; 1611} 1612 1613int 1614SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1615 const char *label, size_t llen, const unsigned char *p, size_t plen, 1616 int use_context) 1617{ 1618 return (tls1_export_keying_material(s, out, olen, 1619 label, llen, p, plen, use_context)); 1620} 1621 1622static unsigned long 1623ssl_session_hash(const SSL_SESSION *a) 1624{ 1625 unsigned long l; 1626 1627 l = (unsigned long) 1628 ((unsigned int) a->session_id[0] )| 1629 ((unsigned int) a->session_id[1]<< 8L)| 1630 ((unsigned long)a->session_id[2]<<16L)| 1631 ((unsigned long)a->session_id[3]<<24L); 1632 return (l); 1633} 1634 1635/* 1636 * NB: If this function (or indeed the hash function which uses a sort of 1637 * coarser function than this one) is changed, ensure 1638 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1639 * able to construct an SSL_SESSION that will collide with any existing session 1640 * with a matching session ID. 1641 */ 1642static int 1643ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 1644{ 1645 if (a->ssl_version != b->ssl_version) 1646 return (1); 1647 if (a->session_id_length != b->session_id_length) 1648 return (1); 1649 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 1650 return (1); 1651 return (0); 1652} 1653 1654/* 1655 * These wrapper functions should remain rather than redeclaring 1656 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1657 * variable. The reason is that the functions aren't static, they're exposed via 1658 * ssl.h. 1659 */ 1660static unsigned long 1661ssl_session_LHASH_HASH(const void *arg) 1662{ 1663 const SSL_SESSION *a = arg; 1664 1665 return ssl_session_hash(a); 1666} 1667 1668static int 1669ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 1670{ 1671 const SSL_SESSION *a = arg1; 1672 const SSL_SESSION *b = arg2; 1673 1674 return ssl_session_cmp(a, b); 1675} 1676 1677SSL_CTX * 1678SSL_CTX_new(const SSL_METHOD *meth) 1679{ 1680 SSL_CTX *ret; 1681 1682 if (!OPENSSL_init_ssl(0, NULL)) { 1683 SSLerrorx(SSL_R_LIBRARY_BUG); 1684 return (NULL); 1685 } 1686 1687 if (meth == NULL) { 1688 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 1689 return (NULL); 1690 } 1691 1692 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 1693 SSLerrorx(ERR_R_MALLOC_FAILURE); 1694 return (NULL); 1695 } 1696 if ((ret->internal = calloc(1, sizeof(*ret->internal))) == NULL) { 1697 free(ret); 1698 SSLerrorx(ERR_R_MALLOC_FAILURE); 1699 return (NULL); 1700 } 1701 1702 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 1703 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1704 goto err; 1705 } 1706 1707 ret->method = meth; 1708 ret->internal->min_version = meth->internal->min_version; 1709 ret->internal->max_version = meth->internal->max_version; 1710 ret->internal->mode = SSL_MODE_AUTO_RETRY; 1711 1712 ret->cert_store = NULL; 1713 ret->internal->session_cache_mode = SSL_SESS_CACHE_SERVER; 1714 ret->internal->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1715 ret->internal->session_cache_head = NULL; 1716 ret->internal->session_cache_tail = NULL; 1717 1718 /* We take the system default */ 1719 ret->session_timeout = ssl_get_default_timeout(); 1720 1721 ret->internal->new_session_cb = 0; 1722 ret->internal->remove_session_cb = 0; 1723 ret->internal->get_session_cb = 0; 1724 ret->internal->generate_session_id = 0; 1725 1726 memset((char *)&ret->internal->stats, 0, sizeof(ret->internal->stats)); 1727 1728 ret->references = 1; 1729 ret->internal->quiet_shutdown = 0; 1730 1731 ret->internal->info_callback = NULL; 1732 1733 ret->internal->app_verify_callback = 0; 1734 ret->internal->app_verify_arg = NULL; 1735 1736 ret->internal->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 1737 ret->internal->read_ahead = 0; 1738 ret->internal->msg_callback = 0; 1739 ret->internal->msg_callback_arg = NULL; 1740 ret->verify_mode = SSL_VERIFY_NONE; 1741 ret->sid_ctx_length = 0; 1742 ret->internal->default_verify_callback = NULL; 1743 1744 if ((ret->internal->cert = ssl_cert_new()) == NULL) 1745 goto err; 1746 1747 ret->default_passwd_callback = 0; 1748 ret->default_passwd_callback_userdata = NULL; 1749 ret->internal->client_cert_cb = 0; 1750 ret->internal->app_gen_cookie_cb = 0; 1751 ret->internal->app_verify_cookie_cb = 0; 1752 1753 ret->internal->sessions = lh_SSL_SESSION_new(); 1754 if (ret->internal->sessions == NULL) 1755 goto err; 1756 ret->cert_store = X509_STORE_new(); 1757 if (ret->cert_store == NULL) 1758 goto err; 1759 1760 ssl_create_cipher_list(ret->method, &ret->cipher_list, 1761 SSL_DEFAULT_CIPHER_LIST); 1762 if (ret->cipher_list == NULL || 1763 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 1764 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 1765 goto err2; 1766 } 1767 1768 ret->param = X509_VERIFY_PARAM_new(); 1769 if (!ret->param) 1770 goto err; 1771 1772 if ((ret->internal->client_CA = sk_X509_NAME_new_null()) == NULL) 1773 goto err; 1774 1775 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->internal->ex_data); 1776 1777 ret->extra_certs = NULL; 1778 1779 ret->internal->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 1780 1781 ret->internal->tlsext_servername_callback = 0; 1782 ret->internal->tlsext_servername_arg = NULL; 1783 1784 /* Setup RFC4507 ticket keys */ 1785 arc4random_buf(ret->internal->tlsext_tick_key_name, 16); 1786 arc4random_buf(ret->internal->tlsext_tick_hmac_key, 16); 1787 arc4random_buf(ret->internal->tlsext_tick_aes_key, 16); 1788 1789 ret->internal->tlsext_status_cb = 0; 1790 ret->internal->tlsext_status_arg = NULL; 1791 1792#ifndef OPENSSL_NO_ENGINE 1793 ret->internal->client_cert_engine = NULL; 1794#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1795#define eng_strx(x) #x 1796#define eng_str(x) eng_strx(x) 1797 /* Use specific client engine automatically... ignore errors */ 1798 { 1799 ENGINE *eng; 1800 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1801 if (!eng) { 1802 ERR_clear_error(); 1803 ENGINE_load_builtin_engines(); 1804 eng = ENGINE_by_id(eng_str( 1805 OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1806 } 1807 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1808 ERR_clear_error(); 1809 } 1810#endif 1811#endif 1812 /* 1813 * Default is to connect to non-RI servers. When RI is more widely 1814 * deployed might change this. 1815 */ 1816 ret->internal->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1817 1818 return (ret); 1819err: 1820 SSLerrorx(ERR_R_MALLOC_FAILURE); 1821err2: 1822 SSL_CTX_free(ret); 1823 return (NULL); 1824} 1825 1826void 1827SSL_CTX_free(SSL_CTX *ctx) 1828{ 1829 int i; 1830 1831 if (ctx == NULL) 1832 return; 1833 1834 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 1835 if (i > 0) 1836 return; 1837 1838 X509_VERIFY_PARAM_free(ctx->param); 1839 1840 /* 1841 * Free internal session cache. However: the remove_cb() may reference 1842 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1843 * after the sessions were flushed. 1844 * As the ex_data handling routines might also touch the session cache, 1845 * the most secure solution seems to be: empty (flush) the cache, then 1846 * free ex_data, then finally free the cache. 1847 * (See ticket [openssl.org #212].) 1848 */ 1849 if (ctx->internal->sessions != NULL) 1850 SSL_CTX_flush_sessions(ctx, 0); 1851 1852 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->internal->ex_data); 1853 1854 lh_SSL_SESSION_free(ctx->internal->sessions); 1855 1856 X509_STORE_free(ctx->cert_store); 1857 sk_SSL_CIPHER_free(ctx->cipher_list); 1858 ssl_cert_free(ctx->internal->cert); 1859 sk_X509_NAME_pop_free(ctx->internal->client_CA, X509_NAME_free); 1860 sk_X509_pop_free(ctx->extra_certs, X509_free); 1861 1862#ifndef OPENSSL_NO_SRTP 1863 if (ctx->internal->srtp_profiles) 1864 sk_SRTP_PROTECTION_PROFILE_free(ctx->internal->srtp_profiles); 1865#endif 1866 1867#ifndef OPENSSL_NO_ENGINE 1868 ENGINE_finish(ctx->internal->client_cert_engine); 1869#endif 1870 1871 free(ctx->internal->tlsext_ecpointformatlist); 1872 free(ctx->internal->tlsext_supportedgroups); 1873 1874 free(ctx->internal->alpn_client_proto_list); 1875 1876 free(ctx->internal); 1877 free(ctx); 1878} 1879 1880int 1881SSL_CTX_up_ref(SSL_CTX *ctx) 1882{ 1883 int refs = CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 1884 return ((refs > 1) ? 1 : 0); 1885} 1886 1887pem_password_cb * 1888SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 1889{ 1890 return (ctx->default_passwd_callback); 1891} 1892 1893void 1894SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1895{ 1896 ctx->default_passwd_callback = cb; 1897} 1898 1899void * 1900SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 1901{ 1902 return ctx->default_passwd_callback_userdata; 1903} 1904 1905void 1906SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 1907{ 1908 ctx->default_passwd_callback_userdata = u; 1909} 1910 1911void 1912SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, 1913 int (*cb)(X509_STORE_CTX *, void *), void *arg) 1914{ 1915 ctx->internal->app_verify_callback = cb; 1916 ctx->internal->app_verify_arg = arg; 1917} 1918 1919void 1920SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 1921{ 1922 ctx->verify_mode = mode; 1923 ctx->internal->default_verify_callback = cb; 1924} 1925 1926void 1927SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 1928{ 1929 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1930} 1931 1932static int 1933ssl_cert_can_sign(X509 *x) 1934{ 1935 /* This call populates extension flags (ex_flags). */ 1936 X509_check_purpose(x, -1, 0); 1937 1938 /* Key usage, if present, must allow signing. */ 1939 return ((x->ex_flags & EXFLAG_KUSAGE) == 0 || 1940 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)); 1941} 1942 1943void 1944ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) 1945{ 1946 unsigned long mask_a, mask_k; 1947 CERT_PKEY *cpk; 1948 1949 if (c == NULL) 1950 return; 1951 1952 mask_a = SSL_aNULL | SSL_aTLS1_3; 1953 mask_k = SSL_kECDHE | SSL_kTLS1_3; 1954 1955 if (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto != 0) 1956 mask_k |= SSL_kDHE; 1957 1958 cpk = &(c->pkeys[SSL_PKEY_ECC]); 1959 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 1960 if (ssl_cert_can_sign(cpk->x509)) 1961 mask_a |= SSL_aECDSA; 1962 } 1963 1964 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 1965 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 1966 mask_k |= SSL_kGOST; 1967 mask_a |= SSL_aGOST01; 1968 } 1969 1970 cpk = &(c->pkeys[SSL_PKEY_RSA]); 1971 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 1972 mask_a |= SSL_aRSA; 1973 mask_k |= SSL_kRSA; 1974 } 1975 1976 c->mask_k = mask_k; 1977 c->mask_a = mask_a; 1978 c->valid = 1; 1979} 1980 1981/* See if this handshake is using an ECC cipher suite. */ 1982int 1983ssl_using_ecc_cipher(SSL *s) 1984{ 1985 unsigned long alg_a, alg_k; 1986 1987 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 1988 alg_k = S3I(s)->hs.new_cipher->algorithm_mkey; 1989 1990 return SSI(s)->tlsext_ecpointformatlist != NULL && 1991 SSI(s)->tlsext_ecpointformatlist_length > 0 && 1992 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 1993} 1994 1995int 1996ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) 1997{ 1998 const SSL_CIPHER *cs = S3I(s)->hs.new_cipher; 1999 unsigned long alg_a; 2000 2001 alg_a = cs->algorithm_auth; 2002 2003 if (alg_a & SSL_aECDSA) { 2004 /* This call populates extension flags (ex_flags). */ 2005 X509_check_purpose(x, -1, 0); 2006 2007 /* Key usage, if present, must allow signing. */ 2008 if ((x->ex_flags & EXFLAG_KUSAGE) && 2009 ((x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) == 0)) { 2010 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2011 return (0); 2012 } 2013 } 2014 2015 return (1); 2016} 2017 2018CERT_PKEY * 2019ssl_get_server_send_pkey(const SSL *s) 2020{ 2021 unsigned long alg_a; 2022 CERT *c; 2023 int i; 2024 2025 c = s->cert; 2026 ssl_set_cert_masks(c, S3I(s)->hs.new_cipher); 2027 2028 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 2029 2030 if (alg_a & SSL_aECDSA) { 2031 i = SSL_PKEY_ECC; 2032 } else if (alg_a & SSL_aRSA) { 2033 i = SSL_PKEY_RSA; 2034 } else if (alg_a & SSL_aGOST01) { 2035 i = SSL_PKEY_GOST01; 2036 } else { /* if (alg_a & SSL_aNULL) */ 2037 SSLerror(s, ERR_R_INTERNAL_ERROR); 2038 return (NULL); 2039 } 2040 2041 return (c->pkeys + i); 2042} 2043 2044EVP_PKEY * 2045ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2046 const struct ssl_sigalg **sap) 2047{ 2048 const struct ssl_sigalg *sigalg = NULL; 2049 EVP_PKEY *pkey = NULL; 2050 unsigned long alg_a; 2051 CERT *c; 2052 int idx = -1; 2053 2054 alg_a = cipher->algorithm_auth; 2055 c = s->cert; 2056 2057 if (alg_a & SSL_aRSA) { 2058 idx = SSL_PKEY_RSA; 2059 } else if ((alg_a & SSL_aECDSA) && 2060 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2061 idx = SSL_PKEY_ECC; 2062 if (idx == -1) { 2063 SSLerror(s, ERR_R_INTERNAL_ERROR); 2064 return (NULL); 2065 } 2066 2067 pkey = c->pkeys[idx].privatekey; 2068 if ((sigalg = ssl_sigalg_select(s, pkey)) == NULL) { 2069 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2070 return (NULL); 2071 } 2072 *pmd = sigalg->md(); 2073 *sap = sigalg; 2074 2075 return (pkey); 2076} 2077 2078DH * 2079ssl_get_auto_dh(SSL *s) 2080{ 2081 CERT_PKEY *cpk; 2082 int keylen; 2083 DH *dhp; 2084 2085 if (s->cert->dh_tmp_auto == 2) { 2086 keylen = 1024; 2087 } else if (S3I(s)->hs.new_cipher->algorithm_auth & SSL_aNULL) { 2088 keylen = 1024; 2089 if (S3I(s)->hs.new_cipher->strength_bits == 256) 2090 keylen = 3072; 2091 } else { 2092 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2093 return (NULL); 2094 if (cpk->privatekey == NULL || cpk->privatekey->pkey.dh == NULL) 2095 return (NULL); 2096 keylen = EVP_PKEY_bits(cpk->privatekey); 2097 } 2098 2099 if ((dhp = DH_new()) == NULL) 2100 return (NULL); 2101 2102 dhp->g = BN_new(); 2103 if (dhp->g != NULL) 2104 BN_set_word(dhp->g, 2); 2105 2106 if (keylen >= 8192) 2107 dhp->p = get_rfc3526_prime_8192(NULL); 2108 else if (keylen >= 4096) 2109 dhp->p = get_rfc3526_prime_4096(NULL); 2110 else if (keylen >= 3072) 2111 dhp->p = get_rfc3526_prime_3072(NULL); 2112 else if (keylen >= 2048) 2113 dhp->p = get_rfc3526_prime_2048(NULL); 2114 else if (keylen >= 1536) 2115 dhp->p = get_rfc3526_prime_1536(NULL); 2116 else 2117 dhp->p = get_rfc2409_prime_1024(NULL); 2118 2119 if (dhp->p == NULL || dhp->g == NULL) { 2120 DH_free(dhp); 2121 return (NULL); 2122 } 2123 return (dhp); 2124} 2125 2126void 2127ssl_update_cache(SSL *s, int mode) 2128{ 2129 int i; 2130 2131 /* 2132 * If the session_id_length is 0, we are not supposed to cache it, 2133 * and it would be rather hard to do anyway :-) 2134 */ 2135 if (s->session->session_id_length == 0) 2136 return; 2137 2138 i = s->session_ctx->internal->session_cache_mode; 2139 if ((i & mode) && (!s->internal->hit) && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2140 || SSL_CTX_add_session(s->session_ctx, s->session)) 2141 && (s->session_ctx->internal->new_session_cb != NULL)) { 2142 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2143 if (!s->session_ctx->internal->new_session_cb(s, s->session)) 2144 SSL_SESSION_free(s->session); 2145 } 2146 2147 /* auto flush every 255 connections */ 2148 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2149 ((i & mode) == mode)) { 2150 if ((((mode & SSL_SESS_CACHE_CLIENT) ? 2151 s->session_ctx->internal->stats.sess_connect_good : 2152 s->session_ctx->internal->stats.sess_accept_good) & 0xff) == 0xff) { 2153 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2154 } 2155 } 2156} 2157 2158const SSL_METHOD * 2159SSL_get_ssl_method(SSL *s) 2160{ 2161 return (s->method); 2162} 2163 2164int 2165SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) 2166{ 2167 int conn = -1; 2168 int ret = 1; 2169 2170 if (s->method != meth) { 2171 if (s->internal->handshake_func != NULL) 2172 conn = (s->internal->handshake_func == s->method->internal->ssl_connect); 2173 2174 if (s->method->internal->version == meth->internal->version) 2175 s->method = meth; 2176 else { 2177 s->method->internal->ssl_free(s); 2178 s->method = meth; 2179 ret = s->method->internal->ssl_new(s); 2180 } 2181 2182 if (conn == 1) 2183 s->internal->handshake_func = meth->internal->ssl_connect; 2184 else if (conn == 0) 2185 s->internal->handshake_func = meth->internal->ssl_accept; 2186 } 2187 return (ret); 2188} 2189 2190int 2191SSL_get_error(const SSL *s, int i) 2192{ 2193 int reason; 2194 unsigned long l; 2195 BIO *bio; 2196 2197 if (i > 0) 2198 return (SSL_ERROR_NONE); 2199 2200 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2201 * etc, where we do encode the error */ 2202 if ((l = ERR_peek_error()) != 0) { 2203 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2204 return (SSL_ERROR_SYSCALL); 2205 else 2206 return (SSL_ERROR_SSL); 2207 } 2208 2209 if ((i < 0) && SSL_want_read(s)) { 2210 bio = SSL_get_rbio(s); 2211 if (BIO_should_read(bio)) { 2212 return (SSL_ERROR_WANT_READ); 2213 } else if (BIO_should_write(bio)) { 2214 /* 2215 * This one doesn't make too much sense... We never 2216 * try to write to the rbio, and an application 2217 * program where rbio and wbio are separate couldn't 2218 * even know what it should wait for. However if we 2219 * ever set s->internal->rwstate incorrectly (so that we have 2220 * SSL_want_read(s) instead of SSL_want_write(s)) 2221 * and rbio and wbio *are* the same, this test works 2222 * around that bug; so it might be safer to keep it. 2223 */ 2224 return (SSL_ERROR_WANT_WRITE); 2225 } else if (BIO_should_io_special(bio)) { 2226 reason = BIO_get_retry_reason(bio); 2227 if (reason == BIO_RR_CONNECT) 2228 return (SSL_ERROR_WANT_CONNECT); 2229 else if (reason == BIO_RR_ACCEPT) 2230 return (SSL_ERROR_WANT_ACCEPT); 2231 else 2232 return (SSL_ERROR_SYSCALL); /* unknown */ 2233 } 2234 } 2235 2236 if ((i < 0) && SSL_want_write(s)) { 2237 bio = SSL_get_wbio(s); 2238 if (BIO_should_write(bio)) { 2239 return (SSL_ERROR_WANT_WRITE); 2240 } else if (BIO_should_read(bio)) { 2241 /* 2242 * See above (SSL_want_read(s) with 2243 * BIO_should_write(bio)) 2244 */ 2245 return (SSL_ERROR_WANT_READ); 2246 } else if (BIO_should_io_special(bio)) { 2247 reason = BIO_get_retry_reason(bio); 2248 if (reason == BIO_RR_CONNECT) 2249 return (SSL_ERROR_WANT_CONNECT); 2250 else if (reason == BIO_RR_ACCEPT) 2251 return (SSL_ERROR_WANT_ACCEPT); 2252 else 2253 return (SSL_ERROR_SYSCALL); 2254 } 2255 } 2256 if ((i < 0) && SSL_want_x509_lookup(s)) { 2257 return (SSL_ERROR_WANT_X509_LOOKUP); 2258 } 2259 2260 if (i == 0) { 2261 if ((s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) && 2262 (S3I(s)->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2263 return (SSL_ERROR_ZERO_RETURN); 2264 } 2265 return (SSL_ERROR_SYSCALL); 2266} 2267 2268int 2269SSL_do_handshake(SSL *s) 2270{ 2271 int ret = 1; 2272 2273 if (s->internal->handshake_func == NULL) { 2274 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2275 return (-1); 2276 } 2277 2278 s->method->internal->ssl_renegotiate_check(s); 2279 2280 if (SSL_in_init(s) || SSL_in_before(s)) { 2281 ret = s->internal->handshake_func(s); 2282 } 2283 return (ret); 2284} 2285 2286/* 2287 * For the next 2 functions, SSL_clear() sets shutdown and so 2288 * one of these calls will reset it 2289 */ 2290void 2291SSL_set_accept_state(SSL *s) 2292{ 2293 s->server = 1; 2294 s->internal->shutdown = 0; 2295 S3I(s)->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2296 s->internal->handshake_func = s->method->internal->ssl_accept; 2297 ssl_clear_cipher_state(s); 2298} 2299 2300void 2301SSL_set_connect_state(SSL *s) 2302{ 2303 s->server = 0; 2304 s->internal->shutdown = 0; 2305 S3I(s)->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2306 s->internal->handshake_func = s->method->internal->ssl_connect; 2307 ssl_clear_cipher_state(s); 2308} 2309 2310int 2311ssl_undefined_function(SSL *s) 2312{ 2313 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2314 return (0); 2315} 2316 2317int 2318ssl_undefined_void_function(void) 2319{ 2320 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2321 return (0); 2322} 2323 2324int 2325ssl_undefined_const_function(const SSL *s) 2326{ 2327 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2328 return (0); 2329} 2330 2331const char * 2332ssl_version_string(int ver) 2333{ 2334 switch (ver) { 2335 case DTLS1_VERSION: 2336 return (SSL_TXT_DTLS1); 2337 case TLS1_VERSION: 2338 return (SSL_TXT_TLSV1); 2339 case TLS1_1_VERSION: 2340 return (SSL_TXT_TLSV1_1); 2341 case TLS1_2_VERSION: 2342 return (SSL_TXT_TLSV1_2); 2343 case TLS1_3_VERSION: 2344 return (SSL_TXT_TLSV1_3); 2345 default: 2346 return ("unknown"); 2347 } 2348} 2349 2350const char * 2351SSL_get_version(const SSL *s) 2352{ 2353 return ssl_version_string(s->version); 2354} 2355 2356SSL * 2357SSL_dup(SSL *s) 2358{ 2359 STACK_OF(X509_NAME) *sk; 2360 X509_NAME *xn; 2361 SSL *ret; 2362 int i; 2363 2364 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2365 goto err; 2366 2367 ret->version = s->version; 2368 ret->internal->type = s->internal->type; 2369 ret->method = s->method; 2370 2371 if (s->session != NULL) { 2372 if (!SSL_copy_session_id(ret, s)) 2373 goto err; 2374 } else { 2375 /* 2376 * No session has been established yet, so we have to expect 2377 * that s->cert or ret->cert will be changed later -- 2378 * they should not both point to the same object, 2379 * and thus we can't use SSL_copy_session_id. 2380 */ 2381 2382 ret->method->internal->ssl_free(ret); 2383 ret->method = s->method; 2384 ret->method->internal->ssl_new(ret); 2385 2386 ssl_cert_free(ret->cert); 2387 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2388 goto err; 2389 2390 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2391 s->sid_ctx_length)) 2392 goto err; 2393 } 2394 2395 ret->internal->options = s->internal->options; 2396 ret->internal->mode = s->internal->mode; 2397 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2398 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2399 ret->internal->msg_callback = s->internal->msg_callback; 2400 ret->internal->msg_callback_arg = s->internal->msg_callback_arg; 2401 SSL_set_verify(ret, SSL_get_verify_mode(s), 2402 SSL_get_verify_callback(s)); 2403 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2404 ret->internal->generate_session_id = s->internal->generate_session_id; 2405 2406 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2407 2408 ret->internal->debug = s->internal->debug; 2409 2410 /* copy app data, a little dangerous perhaps */ 2411 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2412 &ret->internal->ex_data, &s->internal->ex_data)) 2413 goto err; 2414 2415 /* setup rbio, and wbio */ 2416 if (s->rbio != NULL) { 2417 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2418 goto err; 2419 } 2420 if (s->wbio != NULL) { 2421 if (s->wbio != s->rbio) { 2422 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2423 goto err; 2424 } else 2425 ret->wbio = ret->rbio; 2426 } 2427 ret->internal->rwstate = s->internal->rwstate; 2428 ret->internal->in_handshake = s->internal->in_handshake; 2429 ret->internal->handshake_func = s->internal->handshake_func; 2430 ret->server = s->server; 2431 ret->internal->renegotiate = s->internal->renegotiate; 2432 ret->internal->new_session = s->internal->new_session; 2433 ret->internal->quiet_shutdown = s->internal->quiet_shutdown; 2434 ret->internal->shutdown = s->internal->shutdown; 2435 /* SSL_dup does not really work at any state, though */ 2436 S3I(ret)->hs.state = S3I(s)->hs.state; 2437 ret->internal->rstate = s->internal->rstate; 2438 2439 /* 2440 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2441 * ret->init_off 2442 */ 2443 ret->internal->init_num = 0; 2444 2445 ret->internal->hit = s->internal->hit; 2446 2447 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2448 2449 if (s->cipher_list != NULL) { 2450 if ((ret->cipher_list = 2451 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2452 goto err; 2453 } 2454 2455 /* Dup the client_CA list */ 2456 if (s->internal->client_CA != NULL) { 2457 if ((sk = sk_X509_NAME_dup(s->internal->client_CA)) == NULL) goto err; 2458 ret->internal->client_CA = sk; 2459 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2460 xn = sk_X509_NAME_value(sk, i); 2461 if (sk_X509_NAME_set(sk, i, 2462 X509_NAME_dup(xn)) == NULL) { 2463 X509_NAME_free(xn); 2464 goto err; 2465 } 2466 } 2467 } 2468 2469 return ret; 2470 err: 2471 SSL_free(ret); 2472 return NULL; 2473} 2474 2475void 2476ssl_clear_cipher_state(SSL *s) 2477{ 2478 ssl_clear_cipher_read_state(s); 2479 ssl_clear_cipher_write_state(s); 2480} 2481 2482void 2483ssl_clear_cipher_read_state(SSL *s) 2484{ 2485 EVP_CIPHER_CTX_free(s->enc_read_ctx); 2486 s->enc_read_ctx = NULL; 2487 EVP_MD_CTX_free(s->read_hash); 2488 s->read_hash = NULL; 2489 2490 tls12_record_layer_clear_read_state(s->internal->rl); 2491 tls12_record_layer_set_read_seq_num(s->internal->rl, 2492 S3I(s)->read_sequence); 2493 2494 if (s->internal->aead_read_ctx != NULL) { 2495 EVP_AEAD_CTX_cleanup(&s->internal->aead_read_ctx->ctx); 2496 free(s->internal->aead_read_ctx); 2497 s->internal->aead_read_ctx = NULL; 2498 } 2499} 2500 2501void 2502ssl_clear_cipher_write_state(SSL *s) 2503{ 2504 EVP_CIPHER_CTX_free(s->internal->enc_write_ctx); 2505 s->internal->enc_write_ctx = NULL; 2506 EVP_MD_CTX_free(s->internal->write_hash); 2507 s->internal->write_hash = NULL; 2508 2509 tls12_record_layer_clear_write_state(s->internal->rl); 2510 tls12_record_layer_set_write_seq_num(s->internal->rl, 2511 S3I(s)->write_sequence); 2512 2513 if (s->internal->aead_write_ctx != NULL) { 2514 EVP_AEAD_CTX_cleanup(&s->internal->aead_write_ctx->ctx); 2515 free(s->internal->aead_write_ctx); 2516 s->internal->aead_write_ctx = NULL; 2517 } 2518} 2519 2520/* Fix this function so that it takes an optional type parameter */ 2521X509 * 2522SSL_get_certificate(const SSL *s) 2523{ 2524 return (s->cert->key->x509); 2525} 2526 2527/* Fix this function so that it takes an optional type parameter */ 2528EVP_PKEY * 2529SSL_get_privatekey(const SSL *s) 2530{ 2531 return (s->cert->key->privatekey); 2532} 2533 2534const SSL_CIPHER * 2535SSL_get_current_cipher(const SSL *s) 2536{ 2537 if ((s->session != NULL) && (s->session->cipher != NULL)) 2538 return (s->session->cipher); 2539 return (NULL); 2540} 2541const void * 2542SSL_get_current_compression(SSL *s) 2543{ 2544 return (NULL); 2545} 2546 2547const void * 2548SSL_get_current_expansion(SSL *s) 2549{ 2550 return (NULL); 2551} 2552 2553size_t 2554SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 2555{ 2556 size_t len = sizeof(s->s3->client_random); 2557 2558 if (out == NULL) 2559 return len; 2560 2561 if (len > max_out) 2562 len = max_out; 2563 2564 memcpy(out, s->s3->client_random, len); 2565 2566 return len; 2567} 2568 2569size_t 2570SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 2571{ 2572 size_t len = sizeof(s->s3->server_random); 2573 2574 if (out == NULL) 2575 return len; 2576 2577 if (len > max_out) 2578 len = max_out; 2579 2580 memcpy(out, s->s3->server_random, len); 2581 2582 return len; 2583} 2584 2585int 2586ssl_init_wbio_buffer(SSL *s, int push) 2587{ 2588 BIO *bbio; 2589 2590 if (s->bbio == NULL) { 2591 bbio = BIO_new(BIO_f_buffer()); 2592 if (bbio == NULL) 2593 return (0); 2594 s->bbio = bbio; 2595 } else { 2596 bbio = s->bbio; 2597 if (s->bbio == s->wbio) 2598 s->wbio = BIO_pop(s->wbio); 2599 } 2600 (void)BIO_reset(bbio); 2601/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2602 if (!BIO_set_read_buffer_size(bbio, 1)) { 2603 SSLerror(s, ERR_R_BUF_LIB); 2604 return (0); 2605 } 2606 if (push) { 2607 if (s->wbio != bbio) 2608 s->wbio = BIO_push(bbio, s->wbio); 2609 } else { 2610 if (s->wbio == bbio) 2611 s->wbio = BIO_pop(bbio); 2612 } 2613 return (1); 2614} 2615 2616void 2617ssl_free_wbio_buffer(SSL *s) 2618{ 2619 if (s == NULL) 2620 return; 2621 2622 if (s->bbio == NULL) 2623 return; 2624 2625 if (s->bbio == s->wbio) { 2626 /* remove buffering */ 2627 s->wbio = BIO_pop(s->wbio); 2628 } 2629 BIO_free(s->bbio); 2630 s->bbio = NULL; 2631} 2632 2633void 2634SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 2635{ 2636 ctx->internal->quiet_shutdown = mode; 2637} 2638 2639int 2640SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2641{ 2642 return (ctx->internal->quiet_shutdown); 2643} 2644 2645void 2646SSL_set_quiet_shutdown(SSL *s, int mode) 2647{ 2648 s->internal->quiet_shutdown = mode; 2649} 2650 2651int 2652SSL_get_quiet_shutdown(const SSL *s) 2653{ 2654 return (s->internal->quiet_shutdown); 2655} 2656 2657void 2658SSL_set_shutdown(SSL *s, int mode) 2659{ 2660 s->internal->shutdown = mode; 2661} 2662 2663int 2664SSL_get_shutdown(const SSL *s) 2665{ 2666 return (s->internal->shutdown); 2667} 2668 2669int 2670SSL_version(const SSL *s) 2671{ 2672 return (s->version); 2673} 2674 2675SSL_CTX * 2676SSL_get_SSL_CTX(const SSL *ssl) 2677{ 2678 return (ssl->ctx); 2679} 2680 2681SSL_CTX * 2682SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2683{ 2684 if (ssl->ctx == ctx) 2685 return (ssl->ctx); 2686 if (ctx == NULL) 2687 ctx = ssl->initial_ctx; 2688 2689 ssl_cert_free(ssl->cert); 2690 ssl->cert = ssl_cert_dup(ctx->internal->cert); 2691 2692 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 2693 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2694 ssl->ctx = ctx; 2695 return (ssl->ctx); 2696} 2697 2698int 2699SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2700{ 2701 return (X509_STORE_set_default_paths(ctx->cert_store)); 2702} 2703 2704int 2705SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2706 const char *CApath) 2707{ 2708 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 2709} 2710 2711int 2712SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 2713{ 2714 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 2715} 2716 2717void 2718SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 2719{ 2720 ssl->internal->info_callback = cb; 2721} 2722 2723void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 2724{ 2725 return (ssl->internal->info_callback); 2726} 2727 2728int 2729SSL_state(const SSL *ssl) 2730{ 2731 return (S3I(ssl)->hs.state); 2732} 2733 2734void 2735SSL_set_state(SSL *ssl, int state) 2736{ 2737 S3I(ssl)->hs.state = state; 2738} 2739 2740void 2741SSL_set_verify_result(SSL *ssl, long arg) 2742{ 2743 ssl->verify_result = arg; 2744} 2745 2746long 2747SSL_get_verify_result(const SSL *ssl) 2748{ 2749 return (ssl->verify_result); 2750} 2751 2752int 2753SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2754 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2755{ 2756 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2757 new_func, dup_func, free_func)); 2758} 2759 2760int 2761SSL_set_ex_data(SSL *s, int idx, void *arg) 2762{ 2763 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2764} 2765 2766void * 2767SSL_get_ex_data(const SSL *s, int idx) 2768{ 2769 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2770} 2771 2772int 2773SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2774 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2775{ 2776 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2777 new_func, dup_func, free_func)); 2778} 2779 2780int 2781SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 2782{ 2783 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2784} 2785 2786void * 2787SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 2788{ 2789 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2790} 2791 2792int 2793ssl_ok(SSL *s) 2794{ 2795 return (1); 2796} 2797 2798X509_STORE * 2799SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2800{ 2801 return (ctx->cert_store); 2802} 2803 2804void 2805SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 2806{ 2807 X509_STORE_free(ctx->cert_store); 2808 ctx->cert_store = store; 2809} 2810 2811X509 * 2812SSL_CTX_get0_certificate(const SSL_CTX *ctx) 2813{ 2814 if (ctx->internal->cert == NULL) 2815 return NULL; 2816 2817 return ctx->internal->cert->key->x509; 2818} 2819 2820int 2821SSL_want(const SSL *s) 2822{ 2823 return (s->internal->rwstate); 2824} 2825 2826void 2827SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 2828 int keylength)) 2829{ 2830 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2831} 2832 2833void 2834SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 2835 int keylength)) 2836{ 2837 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2838} 2839 2840void 2841SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 2842 int keylength)) 2843{ 2844 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2845} 2846 2847void 2848SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 2849 int keylength)) 2850{ 2851 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2852} 2853 2854void 2855SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 2856 int is_export, int keylength)) 2857{ 2858 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 2859 (void (*)(void))ecdh); 2860} 2861 2862void 2863SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 2864 int keylength)) 2865{ 2866 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2867} 2868 2869 2870void 2871SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 2872 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2873{ 2874 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 2875 (void (*)(void))cb); 2876} 2877 2878void 2879SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 2880 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2881{ 2882 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2883} 2884 2885void 2886SSL_set_debug(SSL *s, int debug) 2887{ 2888 s->internal->debug = debug; 2889} 2890 2891int 2892SSL_cache_hit(SSL *s) 2893{ 2894 return (s->internal->hit); 2895} 2896 2897int 2898SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 2899{ 2900 return ctx->internal->min_version; 2901} 2902 2903int 2904SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 2905{ 2906 return ssl_version_set_min(ctx->method, version, 2907 ctx->internal->max_version, &ctx->internal->min_version); 2908} 2909 2910int 2911SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 2912{ 2913 return ctx->internal->max_version; 2914} 2915 2916int 2917SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 2918{ 2919 return ssl_version_set_max(ctx->method, version, 2920 ctx->internal->min_version, &ctx->internal->max_version); 2921} 2922 2923int 2924SSL_get_min_proto_version(SSL *ssl) 2925{ 2926 return ssl->internal->min_version; 2927} 2928 2929int 2930SSL_set_min_proto_version(SSL *ssl, uint16_t version) 2931{ 2932 return ssl_version_set_min(ssl->method, version, 2933 ssl->internal->max_version, &ssl->internal->min_version); 2934} 2935int 2936SSL_get_max_proto_version(SSL *ssl) 2937{ 2938 return ssl->internal->max_version; 2939} 2940 2941int 2942SSL_set_max_proto_version(SSL *ssl, uint16_t version) 2943{ 2944 return ssl_version_set_max(ssl->method, version, 2945 ssl->internal->min_version, &ssl->internal->max_version); 2946} 2947 2948static int 2949ssl_cipher_id_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 2950{ 2951 SSL_CIPHER const *a = a_; 2952 SSL_CIPHER const *b = b_; 2953 return ssl_cipher_id_cmp(a, b); 2954} 2955 2956SSL_CIPHER * 2957OBJ_bsearch_ssl_cipher_id(SSL_CIPHER *key, SSL_CIPHER const *base, int num) 2958{ 2959 return (SSL_CIPHER *)OBJ_bsearch_(key, base, num, sizeof(SSL_CIPHER), 2960 ssl_cipher_id_cmp_BSEARCH_CMP_FN); 2961} 2962