ssl_lib.c revision 1.199
1/* $OpenBSD: ssl_lib.c,v 1.199 2019/01/21 14:12:13 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 <stdio.h> 144 145#include "ssl_locl.h" 146 147#include <openssl/bn.h> 148#include <openssl/dh.h> 149#include <openssl/lhash.h> 150#include <openssl/objects.h> 151#include <openssl/ocsp.h> 152#include <openssl/x509v3.h> 153 154#ifndef OPENSSL_NO_ENGINE 155#include <openssl/engine.h> 156#endif 157 158#include "bytestring.h" 159#include "ssl_sigalgs.h" 160 161const char *SSL_version_str = OPENSSL_VERSION_TEXT; 162 163int 164SSL_clear(SSL *s) 165{ 166 if (s->method == NULL) { 167 SSLerror(s, SSL_R_NO_METHOD_SPECIFIED); 168 return (0); 169 } 170 171 if (ssl_clear_bad_session(s)) { 172 SSL_SESSION_free(s->session); 173 s->session = NULL; 174 } 175 176 s->error = 0; 177 s->internal->hit = 0; 178 s->internal->shutdown = 0; 179 180 if (s->internal->renegotiate) { 181 SSLerror(s, ERR_R_INTERNAL_ERROR); 182 return (0); 183 } 184 185 s->internal->type = 0; 186 187 s->version = s->method->internal->version; 188 s->client_version = s->version; 189 s->internal->rwstate = SSL_NOTHING; 190 s->internal->rstate = SSL_ST_READ_HEADER; 191 192 BUF_MEM_free(s->internal->init_buf); 193 s->internal->init_buf = NULL; 194 195 ssl_clear_cipher_state(s); 196 197 s->internal->first_packet = 0; 198 199 /* 200 * Check to see if we were changed into a different method, if 201 * so, revert back if we are not doing session-id reuse. 202 */ 203 if (!s->internal->in_handshake && (s->session == NULL) && 204 (s->method != s->ctx->method)) { 205 s->method->internal->ssl_free(s); 206 s->method = s->ctx->method; 207 if (!s->method->internal->ssl_new(s)) 208 return (0); 209 } else 210 s->method->internal->ssl_clear(s); 211 212 S3I(s)->hs.state = SSL_ST_BEFORE|((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT); 213 214 return (1); 215} 216 217/* Used to change an SSL_CTXs default SSL method type */ 218int 219SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 220{ 221 STACK_OF(SSL_CIPHER) *sk; 222 223 ctx->method = meth; 224 225 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), 226 &(ctx->internal->cipher_list_by_id), SSL_DEFAULT_CIPHER_LIST); 227 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { 228 SSLerrorx(SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 229 return (0); 230 } 231 return (1); 232} 233 234SSL * 235SSL_new(SSL_CTX *ctx) 236{ 237 SSL *s; 238 239 if (ctx == NULL) { 240 SSLerrorx(SSL_R_NULL_SSL_CTX); 241 return (NULL); 242 } 243 if (ctx->method == NULL) { 244 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 245 return (NULL); 246 } 247 248 if ((s = calloc(1, sizeof(*s))) == NULL) { 249 SSLerrorx(ERR_R_MALLOC_FAILURE); 250 return (NULL); 251 } 252 if ((s->internal = calloc(1, sizeof(*s->internal))) == NULL) { 253 free(s); 254 SSLerrorx(ERR_R_MALLOC_FAILURE); 255 return (NULL); 256 } 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_resplen = -1; 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 s->references = 1; 346 s->server = (ctx->method->internal->ssl_accept == ssl_undefined_function) ? 0 : 1; 347 348 SSL_clear(s); 349 350 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 351 352 return (s); 353 354 err: 355 SSL_free(s); 356 SSLerrorx(ERR_R_MALLOC_FAILURE); 357 return (NULL); 358} 359 360int 361SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 362 unsigned int sid_ctx_len) 363{ 364 if (sid_ctx_len > sizeof ctx->sid_ctx) { 365 SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 366 return (0); 367 } 368 ctx->sid_ctx_length = sid_ctx_len; 369 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 370 371 return (1); 372} 373 374int 375SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 376 unsigned int sid_ctx_len) 377{ 378 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 379 SSLerror(ssl, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 380 return (0); 381 } 382 ssl->sid_ctx_length = sid_ctx_len; 383 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 384 385 return (1); 386} 387 388int 389SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 390{ 391 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 392 ctx->internal->generate_session_id = cb; 393 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 394 return (1); 395} 396 397int 398SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 399{ 400 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 401 ssl->internal->generate_session_id = cb; 402 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 403 return (1); 404} 405 406int 407SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 408 unsigned int id_len) 409{ 410 /* 411 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 412 * shows how we can "construct" a session to give us the desired 413 * check - ie. to find if there's a session in the hash table 414 * that would conflict with any new session built out of this 415 * id/id_len and the ssl_version in use by this SSL. 416 */ 417 SSL_SESSION r, *p; 418 419 if (id_len > sizeof r.session_id) 420 return (0); 421 422 r.ssl_version = ssl->version; 423 r.session_id_length = id_len; 424 memcpy(r.session_id, id, id_len); 425 426 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 427 p = lh_SSL_SESSION_retrieve(ssl->ctx->internal->sessions, &r); 428 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 429 return (p != NULL); 430} 431 432int 433SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 434{ 435 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 436} 437 438int 439SSL_set_purpose(SSL *s, int purpose) 440{ 441 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 442} 443 444int 445SSL_CTX_set_trust(SSL_CTX *s, int trust) 446{ 447 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 448} 449 450int 451SSL_set_trust(SSL *s, int trust) 452{ 453 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 454} 455 456int 457SSL_set1_host(SSL *s, const char *hostname) 458{ 459 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); 460} 461 462X509_VERIFY_PARAM * 463SSL_CTX_get0_param(SSL_CTX *ctx) 464{ 465 return (ctx->param); 466} 467 468int 469SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 470{ 471 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 472} 473 474X509_VERIFY_PARAM * 475SSL_get0_param(SSL *ssl) 476{ 477 return (ssl->param); 478} 479 480int 481SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 482{ 483 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 484} 485 486void 487SSL_free(SSL *s) 488{ 489 int i; 490 491 if (s == NULL) 492 return; 493 494 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 495 if (i > 0) 496 return; 497 498 X509_VERIFY_PARAM_free(s->param); 499 500 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 501 502 if (s->bbio != NULL) { 503 /* If the buffering BIO is in place, pop it off */ 504 if (s->bbio == s->wbio) { 505 s->wbio = BIO_pop(s->wbio); 506 } 507 BIO_free(s->bbio); 508 s->bbio = NULL; 509 } 510 511 if (s->rbio != s->wbio) 512 BIO_free_all(s->rbio); 513 BIO_free_all(s->wbio); 514 515 BUF_MEM_free(s->internal->init_buf); 516 517 /* add extra stuff */ 518 sk_SSL_CIPHER_free(s->cipher_list); 519 sk_SSL_CIPHER_free(s->internal->cipher_list_by_id); 520 521 /* Make the next call work :-) */ 522 if (s->session != NULL) { 523 ssl_clear_bad_session(s); 524 SSL_SESSION_free(s->session); 525 } 526 527 ssl_clear_cipher_state(s); 528 529 ssl_cert_free(s->cert); 530 531 free(s->tlsext_hostname); 532 SSL_CTX_free(s->initial_ctx); 533 534 free(s->internal->tlsext_ecpointformatlist); 535 free(s->internal->tlsext_supportedgroups); 536 537 sk_X509_EXTENSION_pop_free(s->internal->tlsext_ocsp_exts, 538 X509_EXTENSION_free); 539 sk_OCSP_RESPID_pop_free(s->internal->tlsext_ocsp_ids, OCSP_RESPID_free); 540 free(s->internal->tlsext_ocsp_resp); 541 542 sk_X509_NAME_pop_free(s->internal->client_CA, X509_NAME_free); 543 544 if (s->method != NULL) 545 s->method->internal->ssl_free(s); 546 547 SSL_CTX_free(s->ctx); 548 549 free(s->internal->alpn_client_proto_list); 550 551#ifndef OPENSSL_NO_SRTP 552 sk_SRTP_PROTECTION_PROFILE_free(s->internal->srtp_profiles); 553#endif 554 555 free(s->internal); 556 free(s); 557} 558 559int 560SSL_up_ref(SSL *s) 561{ 562 int refs = CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL); 563 return (refs > 1) ? 1 : 0; 564} 565 566void 567SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 568{ 569 /* If the output buffering BIO is still in place, remove it */ 570 if (s->bbio != NULL) { 571 if (s->wbio == s->bbio) { 572 s->wbio = s->wbio->next_bio; 573 s->bbio->next_bio = NULL; 574 } 575 } 576 577 if (s->rbio != rbio && s->rbio != s->wbio) 578 BIO_free_all(s->rbio); 579 if (s->wbio != wbio) 580 BIO_free_all(s->wbio); 581 s->rbio = rbio; 582 s->wbio = wbio; 583} 584 585BIO * 586SSL_get_rbio(const SSL *s) 587{ 588 return (s->rbio); 589} 590 591BIO * 592SSL_get_wbio(const SSL *s) 593{ 594 return (s->wbio); 595} 596 597int 598SSL_get_fd(const SSL *s) 599{ 600 return (SSL_get_rfd(s)); 601} 602 603int 604SSL_get_rfd(const SSL *s) 605{ 606 int ret = -1; 607 BIO *b, *r; 608 609 b = SSL_get_rbio(s); 610 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 611 if (r != NULL) 612 BIO_get_fd(r, &ret); 613 return (ret); 614} 615 616int 617SSL_get_wfd(const SSL *s) 618{ 619 int ret = -1; 620 BIO *b, *r; 621 622 b = SSL_get_wbio(s); 623 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 624 if (r != NULL) 625 BIO_get_fd(r, &ret); 626 return (ret); 627} 628 629int 630SSL_set_fd(SSL *s, int fd) 631{ 632 int ret = 0; 633 BIO *bio = NULL; 634 635 bio = BIO_new(BIO_s_socket()); 636 637 if (bio == NULL) { 638 SSLerror(s, ERR_R_BUF_LIB); 639 goto err; 640 } 641 BIO_set_fd(bio, fd, BIO_NOCLOSE); 642 SSL_set_bio(s, bio, bio); 643 ret = 1; 644err: 645 return (ret); 646} 647 648int 649SSL_set_wfd(SSL *s, int fd) 650{ 651 int ret = 0; 652 BIO *bio = NULL; 653 654 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 655 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 656 bio = BIO_new(BIO_s_socket()); 657 658 if (bio == NULL) { 659 SSLerror(s, ERR_R_BUF_LIB); 660 goto err; 661 } 662 BIO_set_fd(bio, fd, BIO_NOCLOSE); 663 SSL_set_bio(s, SSL_get_rbio(s), bio); 664 } else 665 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 666 ret = 1; 667err: 668 return (ret); 669} 670 671int 672SSL_set_rfd(SSL *s, int fd) 673{ 674 int ret = 0; 675 BIO *bio = NULL; 676 677 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 678 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 679 bio = BIO_new(BIO_s_socket()); 680 681 if (bio == NULL) { 682 SSLerror(s, ERR_R_BUF_LIB); 683 goto err; 684 } 685 BIO_set_fd(bio, fd, BIO_NOCLOSE); 686 SSL_set_bio(s, bio, SSL_get_wbio(s)); 687 } else 688 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 689 ret = 1; 690err: 691 return (ret); 692} 693 694 695/* return length of latest Finished message we sent, copy to 'buf' */ 696size_t 697SSL_get_finished(const SSL *s, void *buf, size_t count) 698{ 699 size_t ret = 0; 700 701 if (s->s3 != NULL) { 702 ret = S3I(s)->tmp.finish_md_len; 703 if (count > ret) 704 count = ret; 705 memcpy(buf, S3I(s)->tmp.finish_md, count); 706 } 707 return (ret); 708} 709 710/* return length of latest Finished message we expected, copy to 'buf' */ 711size_t 712SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 713{ 714 size_t ret = 0; 715 716 if (s->s3 != NULL) { 717 ret = S3I(s)->tmp.peer_finish_md_len; 718 if (count > ret) 719 count = ret; 720 memcpy(buf, S3I(s)->tmp.peer_finish_md, count); 721 } 722 return (ret); 723} 724 725 726int 727SSL_get_verify_mode(const SSL *s) 728{ 729 return (s->verify_mode); 730} 731 732int 733SSL_get_verify_depth(const SSL *s) 734{ 735 return (X509_VERIFY_PARAM_get_depth(s->param)); 736} 737 738int 739(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 740{ 741 return (s->internal->verify_callback); 742} 743 744int 745SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 746{ 747 return (ctx->verify_mode); 748} 749 750int 751SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 752{ 753 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 754} 755 756int 757(*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 758{ 759 return (ctx->internal->default_verify_callback); 760} 761 762void 763SSL_set_verify(SSL *s, int mode, 764 int (*callback)(int ok, X509_STORE_CTX *ctx)) 765{ 766 s->verify_mode = mode; 767 if (callback != NULL) 768 s->internal->verify_callback = callback; 769} 770 771void 772SSL_set_verify_depth(SSL *s, int depth) 773{ 774 X509_VERIFY_PARAM_set_depth(s->param, depth); 775} 776 777void 778SSL_set_read_ahead(SSL *s, int yes) 779{ 780 s->internal->read_ahead = yes; 781} 782 783int 784SSL_get_read_ahead(const SSL *s) 785{ 786 return (s->internal->read_ahead); 787} 788 789int 790SSL_pending(const SSL *s) 791{ 792 /* 793 * SSL_pending cannot work properly if read-ahead is enabled 794 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 795 * and it is impossible to fix since SSL_pending cannot report 796 * errors that may be observed while scanning the new data. 797 * (Note that SSL_pending() is often used as a boolean value, 798 * so we'd better not return -1.) 799 */ 800 return (ssl3_pending(s)); 801} 802 803X509 * 804SSL_get_peer_certificate(const SSL *s) 805{ 806 X509 *r; 807 808 if ((s == NULL) || (s->session == NULL)) 809 r = NULL; 810 else 811 r = s->session->peer; 812 813 if (r == NULL) 814 return (r); 815 816 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509); 817 818 return (r); 819} 820 821STACK_OF(X509) * 822SSL_get_peer_cert_chain(const SSL *s) 823{ 824 STACK_OF(X509) *r; 825 826 if ((s == NULL) || (s->session == NULL) || 827 (SSI(s)->sess_cert == NULL)) 828 r = NULL; 829 else 830 r = SSI(s)->sess_cert->cert_chain; 831 832 /* 833 * If we are a client, cert_chain includes the peer's own 834 * certificate; 835 * if we are a server, it does not. 836 */ 837 return (r); 838} 839 840/* 841 * Now in theory, since the calling process own 't' it should be safe to 842 * modify. We need to be able to read f without being hassled 843 */ 844int 845SSL_copy_session_id(SSL *t, const SSL *f) 846{ 847 CERT *tmp; 848 849 /* Do we need to do SSL locking? */ 850 if (!SSL_set_session(t, SSL_get_session(f))) 851 return 0; 852 853 /* What if we are set up for one protocol but want to talk another? */ 854 if (t->method != f->method) { 855 t->method->internal->ssl_free(t); 856 t->method = f->method; 857 if (!t->method->internal->ssl_new(t)) 858 return 0; 859 } 860 861 tmp = t->cert; 862 if (f->cert != NULL) { 863 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 864 t->cert = f->cert; 865 } else 866 t->cert = NULL; 867 ssl_cert_free(tmp); 868 869 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) 870 return 0; 871 872 return 1; 873} 874 875/* Fix this so it checks all the valid key/cert options */ 876int 877SSL_CTX_check_private_key(const SSL_CTX *ctx) 878{ 879 if ((ctx == NULL) || (ctx->internal->cert == NULL) || 880 (ctx->internal->cert->key->x509 == NULL)) { 881 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED); 882 return (0); 883 } 884 if (ctx->internal->cert->key->privatekey == NULL) { 885 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED); 886 return (0); 887 } 888 return (X509_check_private_key(ctx->internal->cert->key->x509, 889 ctx->internal->cert->key->privatekey)); 890} 891 892/* Fix this function so that it takes an optional type parameter */ 893int 894SSL_check_private_key(const SSL *ssl) 895{ 896 if (ssl == NULL) { 897 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); 898 return (0); 899 } 900 if (ssl->cert == NULL) { 901 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 902 return (0); 903 } 904 if (ssl->cert->key->x509 == NULL) { 905 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 906 return (0); 907 } 908 if (ssl->cert->key->privatekey == NULL) { 909 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 910 return (0); 911 } 912 return (X509_check_private_key(ssl->cert->key->x509, 913 ssl->cert->key->privatekey)); 914} 915 916int 917SSL_accept(SSL *s) 918{ 919 if (s->internal->handshake_func == NULL) 920 SSL_set_accept_state(s); /* Not properly initialized yet */ 921 922 return (s->method->internal->ssl_accept(s)); 923} 924 925int 926SSL_connect(SSL *s) 927{ 928 if (s->internal->handshake_func == NULL) 929 SSL_set_connect_state(s); /* Not properly initialized yet */ 930 931 return (s->method->internal->ssl_connect(s)); 932} 933 934int 935SSL_is_server(const SSL *s) 936{ 937 return s->server; 938} 939 940long 941SSL_get_default_timeout(const SSL *s) 942{ 943 return (s->method->internal->get_timeout()); 944} 945 946int 947SSL_read(SSL *s, void *buf, int num) 948{ 949 if (s->internal->handshake_func == NULL) { 950 SSLerror(s, SSL_R_UNINITIALIZED); 951 return (-1); 952 } 953 954 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 955 s->internal->rwstate = SSL_NOTHING; 956 return (0); 957 } 958 return ssl3_read(s, buf, num); 959} 960 961int 962SSL_peek(SSL *s, void *buf, int num) 963{ 964 if (s->internal->handshake_func == NULL) { 965 SSLerror(s, SSL_R_UNINITIALIZED); 966 return (-1); 967 } 968 969 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 970 return (0); 971 } 972 return ssl3_peek(s, buf, num); 973} 974 975int 976SSL_write(SSL *s, const void *buf, int num) 977{ 978 if (s->internal->handshake_func == NULL) { 979 SSLerror(s, SSL_R_UNINITIALIZED); 980 return (-1); 981 } 982 983 if (s->internal->shutdown & SSL_SENT_SHUTDOWN) { 984 s->internal->rwstate = SSL_NOTHING; 985 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 986 return (-1); 987 } 988 return ssl3_write(s, buf, num); 989} 990 991int 992SSL_shutdown(SSL *s) 993{ 994 /* 995 * Note that this function behaves differently from what one might 996 * expect. Return values are 0 for no success (yet), 997 * 1 for success; but calling it once is usually not enough, 998 * even if blocking I/O is used (see ssl3_shutdown). 999 */ 1000 1001 if (s->internal->handshake_func == NULL) { 1002 SSLerror(s, SSL_R_UNINITIALIZED); 1003 return (-1); 1004 } 1005 1006 if (s != NULL && !SSL_in_init(s)) 1007 return (ssl3_shutdown(s)); 1008 1009 return (1); 1010} 1011 1012int 1013SSL_renegotiate(SSL *s) 1014{ 1015 if (s->internal->renegotiate == 0) 1016 s->internal->renegotiate = 1; 1017 1018 s->internal->new_session = 1; 1019 1020 return (s->method->internal->ssl_renegotiate(s)); 1021} 1022 1023int 1024SSL_renegotiate_abbreviated(SSL *s) 1025{ 1026 if (s->internal->renegotiate == 0) 1027 s->internal->renegotiate = 1; 1028 1029 s->internal->new_session = 0; 1030 1031 return (s->method->internal->ssl_renegotiate(s)); 1032} 1033 1034int 1035SSL_renegotiate_pending(SSL *s) 1036{ 1037 /* 1038 * Becomes true when negotiation is requested; 1039 * false again once a handshake has finished. 1040 */ 1041 return (s->internal->renegotiate != 0); 1042} 1043 1044long 1045SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1046{ 1047 long l; 1048 1049 switch (cmd) { 1050 case SSL_CTRL_GET_READ_AHEAD: 1051 return (s->internal->read_ahead); 1052 case SSL_CTRL_SET_READ_AHEAD: 1053 l = s->internal->read_ahead; 1054 s->internal->read_ahead = larg; 1055 return (l); 1056 1057 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1058 s->internal->msg_callback_arg = parg; 1059 return (1); 1060 1061 case SSL_CTRL_OPTIONS: 1062 return (s->internal->options|=larg); 1063 case SSL_CTRL_CLEAR_OPTIONS: 1064 return (s->internal->options&=~larg); 1065 case SSL_CTRL_MODE: 1066 return (s->internal->mode|=larg); 1067 case SSL_CTRL_CLEAR_MODE: 1068 return (s->internal->mode &=~larg); 1069 case SSL_CTRL_GET_MAX_CERT_LIST: 1070 return (s->internal->max_cert_list); 1071 case SSL_CTRL_SET_MAX_CERT_LIST: 1072 l = s->internal->max_cert_list; 1073 s->internal->max_cert_list = larg; 1074 return (l); 1075 case SSL_CTRL_SET_MTU: 1076#ifndef OPENSSL_NO_DTLS1 1077 if (larg < (long)dtls1_min_mtu()) 1078 return (0); 1079#endif 1080 if (SSL_IS_DTLS(s)) { 1081 D1I(s)->mtu = larg; 1082 return (larg); 1083 } 1084 return (0); 1085 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1086 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1087 return (0); 1088 s->max_send_fragment = larg; 1089 return (1); 1090 case SSL_CTRL_GET_RI_SUPPORT: 1091 if (s->s3) 1092 return (S3I(s)->send_connection_binding); 1093 else return (0); 1094 default: 1095 if (SSL_IS_DTLS(s)) 1096 return dtls1_ctrl(s, cmd, larg, parg); 1097 return ssl3_ctrl(s, cmd, larg, parg); 1098 } 1099} 1100 1101long 1102SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1103{ 1104 switch (cmd) { 1105 case SSL_CTRL_SET_MSG_CALLBACK: 1106 s->internal->msg_callback = (void (*)(int write_p, int version, 1107 int content_type, const void *buf, size_t len, 1108 SSL *ssl, void *arg))(fp); 1109 return (1); 1110 1111 default: 1112 return (ssl3_callback_ctrl(s, cmd, fp)); 1113 } 1114} 1115 1116struct lhash_st_SSL_SESSION * 1117SSL_CTX_sessions(SSL_CTX *ctx) 1118{ 1119 return (ctx->internal->sessions); 1120} 1121 1122long 1123SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1124{ 1125 long l; 1126 1127 switch (cmd) { 1128 case SSL_CTRL_GET_READ_AHEAD: 1129 return (ctx->internal->read_ahead); 1130 case SSL_CTRL_SET_READ_AHEAD: 1131 l = ctx->internal->read_ahead; 1132 ctx->internal->read_ahead = larg; 1133 return (l); 1134 1135 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1136 ctx->internal->msg_callback_arg = parg; 1137 return (1); 1138 1139 case SSL_CTRL_GET_MAX_CERT_LIST: 1140 return (ctx->internal->max_cert_list); 1141 case SSL_CTRL_SET_MAX_CERT_LIST: 1142 l = ctx->internal->max_cert_list; 1143 ctx->internal->max_cert_list = larg; 1144 return (l); 1145 1146 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1147 l = ctx->internal->session_cache_size; 1148 ctx->internal->session_cache_size = larg; 1149 return (l); 1150 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1151 return (ctx->internal->session_cache_size); 1152 case SSL_CTRL_SET_SESS_CACHE_MODE: 1153 l = ctx->internal->session_cache_mode; 1154 ctx->internal->session_cache_mode = larg; 1155 return (l); 1156 case SSL_CTRL_GET_SESS_CACHE_MODE: 1157 return (ctx->internal->session_cache_mode); 1158 1159 case SSL_CTRL_SESS_NUMBER: 1160 return (lh_SSL_SESSION_num_items(ctx->internal->sessions)); 1161 case SSL_CTRL_SESS_CONNECT: 1162 return (ctx->internal->stats.sess_connect); 1163 case SSL_CTRL_SESS_CONNECT_GOOD: 1164 return (ctx->internal->stats.sess_connect_good); 1165 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1166 return (ctx->internal->stats.sess_connect_renegotiate); 1167 case SSL_CTRL_SESS_ACCEPT: 1168 return (ctx->internal->stats.sess_accept); 1169 case SSL_CTRL_SESS_ACCEPT_GOOD: 1170 return (ctx->internal->stats.sess_accept_good); 1171 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1172 return (ctx->internal->stats.sess_accept_renegotiate); 1173 case SSL_CTRL_SESS_HIT: 1174 return (ctx->internal->stats.sess_hit); 1175 case SSL_CTRL_SESS_CB_HIT: 1176 return (ctx->internal->stats.sess_cb_hit); 1177 case SSL_CTRL_SESS_MISSES: 1178 return (ctx->internal->stats.sess_miss); 1179 case SSL_CTRL_SESS_TIMEOUTS: 1180 return (ctx->internal->stats.sess_timeout); 1181 case SSL_CTRL_SESS_CACHE_FULL: 1182 return (ctx->internal->stats.sess_cache_full); 1183 case SSL_CTRL_OPTIONS: 1184 return (ctx->internal->options|=larg); 1185 case SSL_CTRL_CLEAR_OPTIONS: 1186 return (ctx->internal->options&=~larg); 1187 case SSL_CTRL_MODE: 1188 return (ctx->internal->mode|=larg); 1189 case SSL_CTRL_CLEAR_MODE: 1190 return (ctx->internal->mode&=~larg); 1191 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1192 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1193 return (0); 1194 ctx->internal->max_send_fragment = larg; 1195 return (1); 1196 default: 1197 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1198 } 1199} 1200 1201long 1202SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1203{ 1204 switch (cmd) { 1205 case SSL_CTRL_SET_MSG_CALLBACK: 1206 ctx->internal->msg_callback = (void (*)(int write_p, int version, 1207 int content_type, const void *buf, size_t len, SSL *ssl, 1208 void *arg))(fp); 1209 return (1); 1210 1211 default: 1212 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1213 } 1214} 1215 1216int 1217ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1218{ 1219 long l; 1220 1221 l = a->id - b->id; 1222 if (l == 0L) 1223 return (0); 1224 else 1225 return ((l > 0) ? 1:-1); 1226} 1227 1228int 1229ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1230 const SSL_CIPHER * const *bp) 1231{ 1232 long l; 1233 1234 l = (*ap)->id - (*bp)->id; 1235 if (l == 0L) 1236 return (0); 1237 else 1238 return ((l > 0) ? 1:-1); 1239} 1240 1241/* 1242 * Return a STACK of the ciphers available for the SSL and in order of 1243 * preference. 1244 */ 1245STACK_OF(SSL_CIPHER) * 1246SSL_get_ciphers(const SSL *s) 1247{ 1248 if (s != NULL) { 1249 if (s->cipher_list != NULL) { 1250 return (s->cipher_list); 1251 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { 1252 return (s->ctx->cipher_list); 1253 } 1254 } 1255 return (NULL); 1256} 1257 1258/* 1259 * Return a STACK of the ciphers available for the SSL and in order of 1260 * algorithm id. 1261 */ 1262STACK_OF(SSL_CIPHER) * 1263ssl_get_ciphers_by_id(SSL *s) 1264{ 1265 if (s != NULL) { 1266 if (s->internal->cipher_list_by_id != NULL) { 1267 return (s->internal->cipher_list_by_id); 1268 } else if ((s->ctx != NULL) && 1269 (s->ctx->internal->cipher_list_by_id != NULL)) { 1270 return (s->ctx->internal->cipher_list_by_id); 1271 } 1272 } 1273 return (NULL); 1274} 1275 1276/* See if we have any ECC cipher suites. */ 1277int 1278ssl_has_ecc_ciphers(SSL *s) 1279{ 1280 STACK_OF(SSL_CIPHER) *ciphers; 1281 unsigned long alg_k, alg_a; 1282 SSL_CIPHER *cipher; 1283 int i; 1284 1285 if (s->version == DTLS1_VERSION) 1286 return 0; 1287 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1288 return 0; 1289 1290 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1291 cipher = sk_SSL_CIPHER_value(ciphers, i); 1292 1293 alg_k = cipher->algorithm_mkey; 1294 alg_a = cipher->algorithm_auth; 1295 1296 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1297 return 1; 1298 } 1299 1300 return 0; 1301} 1302 1303/* The old interface to get the same thing as SSL_get_ciphers(). */ 1304const char * 1305SSL_get_cipher_list(const SSL *s, int n) 1306{ 1307 SSL_CIPHER *c; 1308 STACK_OF(SSL_CIPHER) *sk; 1309 1310 if (s == NULL) 1311 return (NULL); 1312 sk = SSL_get_ciphers(s); 1313 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1314 return (NULL); 1315 c = sk_SSL_CIPHER_value(sk, n); 1316 if (c == NULL) 1317 return (NULL); 1318 return (c->name); 1319} 1320 1321STACK_OF(SSL_CIPHER) * 1322SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1323{ 1324 return ctx->cipher_list; 1325} 1326 1327/* Specify the ciphers to be used by default by the SSL_CTX. */ 1328int 1329SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1330{ 1331 STACK_OF(SSL_CIPHER) *sk; 1332 1333 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1334 &ctx->internal->cipher_list_by_id, str); 1335 /* 1336 * ssl_create_cipher_list may return an empty stack if it 1337 * was unable to find a cipher matching the given rule string 1338 * (for example if the rule string specifies a cipher which 1339 * has been disabled). This is not an error as far as 1340 * ssl_create_cipher_list is concerned, and hence 1341 * ctx->cipher_list and ctx->internal->cipher_list_by_id has been 1342 * updated. 1343 */ 1344 if (sk == NULL) 1345 return (0); 1346 else if (sk_SSL_CIPHER_num(sk) == 0) { 1347 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1348 return (0); 1349 } 1350 return (1); 1351} 1352 1353/* Specify the ciphers to be used by the SSL. */ 1354int 1355SSL_set_cipher_list(SSL *s, const char *str) 1356{ 1357 STACK_OF(SSL_CIPHER) *sk; 1358 1359 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1360 &s->internal->cipher_list_by_id, str); 1361 /* see comment in SSL_CTX_set_cipher_list */ 1362 if (sk == NULL) 1363 return (0); 1364 else if (sk_SSL_CIPHER_num(sk) == 0) { 1365 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1366 return (0); 1367 } 1368 return (1); 1369} 1370 1371/* works well for SSLv2, not so good for SSLv3 */ 1372char * 1373SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1374{ 1375 char *end; 1376 STACK_OF(SSL_CIPHER) *sk; 1377 SSL_CIPHER *c; 1378 size_t curlen = 0; 1379 int i; 1380 1381 if (s->session == NULL || s->session->ciphers == NULL || len < 2) 1382 return (NULL); 1383 1384 sk = s->session->ciphers; 1385 if (sk_SSL_CIPHER_num(sk) == 0) 1386 return (NULL); 1387 1388 buf[0] = '\0'; 1389 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { 1390 c = sk_SSL_CIPHER_value(sk, i); 1391 end = buf + curlen; 1392 if (strlcat(buf, c->name, len) >= len || 1393 (curlen = strlcat(buf, ":", len)) >= len) { 1394 /* remove truncated cipher from list */ 1395 *end = '\0'; 1396 break; 1397 } 1398 } 1399 /* remove trailing colon */ 1400 if ((end = strrchr(buf, ':')) != NULL) 1401 *end = '\0'; 1402 return (buf); 1403} 1404 1405/* 1406 * Return a servername extension value if provided in Client Hello, or NULL. 1407 * So far, only host_name types are defined (RFC 3546). 1408 */ 1409const char * 1410SSL_get_servername(const SSL *s, const int type) 1411{ 1412 if (type != TLSEXT_NAMETYPE_host_name) 1413 return (NULL); 1414 1415 return (s->session && !s->tlsext_hostname ? 1416 s->session->tlsext_hostname : 1417 s->tlsext_hostname); 1418} 1419 1420int 1421SSL_get_servername_type(const SSL *s) 1422{ 1423 if (s->session && 1424 (!s->tlsext_hostname ? 1425 s->session->tlsext_hostname : s->tlsext_hostname)) 1426 return (TLSEXT_NAMETYPE_host_name); 1427 return (-1); 1428} 1429 1430/* 1431 * SSL_select_next_proto implements standard protocol selection. It is 1432 * expected that this function is called from the callback set by 1433 * SSL_CTX_set_alpn_select_cb. 1434 * 1435 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1436 * strings. The length byte itself is not included in the length. A byte 1437 * string of length 0 is invalid. No byte string may be truncated. 1438 * 1439 * It returns either: 1440 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1441 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1442 */ 1443int 1444SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1445 const unsigned char *server, unsigned int server_len, 1446 const unsigned char *client, unsigned int client_len) 1447{ 1448 unsigned int i, j; 1449 const unsigned char *result; 1450 int status = OPENSSL_NPN_UNSUPPORTED; 1451 1452 /* 1453 * For each protocol in server preference order, 1454 * see if we support it. 1455 */ 1456 for (i = 0; i < server_len; ) { 1457 for (j = 0; j < client_len; ) { 1458 if (server[i] == client[j] && 1459 memcmp(&server[i + 1], 1460 &client[j + 1], server[i]) == 0) { 1461 /* We found a match */ 1462 result = &server[i]; 1463 status = OPENSSL_NPN_NEGOTIATED; 1464 goto found; 1465 } 1466 j += client[j]; 1467 j++; 1468 } 1469 i += server[i]; 1470 i++; 1471 } 1472 1473 /* There's no overlap between our protocols and the server's list. */ 1474 result = client; 1475 status = OPENSSL_NPN_NO_OVERLAP; 1476 1477found: 1478 *out = (unsigned char *) result + 1; 1479 *outlen = result[0]; 1480 return (status); 1481} 1482 1483/* SSL_get0_next_proto_negotiated is deprecated. */ 1484void 1485SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1486 unsigned *len) 1487{ 1488 *data = NULL; 1489 *len = 0; 1490} 1491 1492/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1493void 1494SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1495 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1496{ 1497} 1498 1499/* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1500void 1501SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1502 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1503 unsigned int inlen, void *arg), void *arg) 1504{ 1505} 1506 1507/* 1508 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1509 * protocols, which must be in wire-format (i.e. a series of non-empty, 1510 * 8-bit length-prefixed strings). Returns 0 on success. 1511 */ 1512int 1513SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1514 unsigned int protos_len) 1515{ 1516 int failed = 1; 1517 1518 if (protos == NULL || protos_len == 0) 1519 goto err; 1520 1521 free(ctx->internal->alpn_client_proto_list); 1522 ctx->internal->alpn_client_proto_list = NULL; 1523 ctx->internal->alpn_client_proto_list_len = 0; 1524 1525 if ((ctx->internal->alpn_client_proto_list = malloc(protos_len)) 1526 == NULL) 1527 goto err; 1528 ctx->internal->alpn_client_proto_list_len = protos_len; 1529 1530 memcpy(ctx->internal->alpn_client_proto_list, protos, protos_len); 1531 1532 failed = 0; 1533 1534 err: 1535 /* NOTE: Return values are the reverse of what you expect. */ 1536 return (failed); 1537} 1538 1539/* 1540 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1541 * protocols, which must be in wire-format (i.e. a series of non-empty, 1542 * 8-bit length-prefixed strings). Returns 0 on success. 1543 */ 1544int 1545SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1546 unsigned int protos_len) 1547{ 1548 int failed = 1; 1549 1550 if (protos == NULL || protos_len == 0) 1551 goto err; 1552 1553 free(ssl->internal->alpn_client_proto_list); 1554 ssl->internal->alpn_client_proto_list = NULL; 1555 ssl->internal->alpn_client_proto_list_len = 0; 1556 1557 if ((ssl->internal->alpn_client_proto_list = malloc(protos_len)) 1558 == NULL) 1559 goto err; 1560 ssl->internal->alpn_client_proto_list_len = protos_len; 1561 1562 memcpy(ssl->internal->alpn_client_proto_list, protos, protos_len); 1563 1564 failed = 0; 1565 1566 err: 1567 /* NOTE: Return values are the reverse of what you expect. */ 1568 return (failed); 1569} 1570 1571/* 1572 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1573 * ClientHello processing in order to select an ALPN protocol from the 1574 * client's list of offered protocols. 1575 */ 1576void 1577SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1578 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1579 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1580{ 1581 ctx->internal->alpn_select_cb = cb; 1582 ctx->internal->alpn_select_cb_arg = arg; 1583} 1584 1585/* 1586 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1587 * it sets data to point to len bytes of protocol name (not including the 1588 * leading length-prefix byte). If the server didn't respond with* a negotiated 1589 * protocol then len will be zero. 1590 */ 1591void 1592SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1593 unsigned *len) 1594{ 1595 *data = NULL; 1596 *len = 0; 1597 1598 if (ssl->s3 != NULL) { 1599 *data = ssl->s3->internal->alpn_selected; 1600 *len = ssl->s3->internal->alpn_selected_len; 1601 } 1602} 1603 1604int 1605SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1606 const char *label, size_t llen, const unsigned char *p, size_t plen, 1607 int use_context) 1608{ 1609 return (tls1_export_keying_material(s, out, olen, 1610 label, llen, p, plen, use_context)); 1611} 1612 1613static unsigned long 1614ssl_session_hash(const SSL_SESSION *a) 1615{ 1616 unsigned long l; 1617 1618 l = (unsigned long) 1619 ((unsigned int) a->session_id[0] )| 1620 ((unsigned int) a->session_id[1]<< 8L)| 1621 ((unsigned long)a->session_id[2]<<16L)| 1622 ((unsigned long)a->session_id[3]<<24L); 1623 return (l); 1624} 1625 1626/* 1627 * NB: If this function (or indeed the hash function which uses a sort of 1628 * coarser function than this one) is changed, ensure 1629 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1630 * able to construct an SSL_SESSION that will collide with any existing session 1631 * with a matching session ID. 1632 */ 1633static int 1634ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 1635{ 1636 if (a->ssl_version != b->ssl_version) 1637 return (1); 1638 if (a->session_id_length != b->session_id_length) 1639 return (1); 1640 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 1641 return (1); 1642 return (0); 1643} 1644 1645/* 1646 * These wrapper functions should remain rather than redeclaring 1647 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1648 * variable. The reason is that the functions aren't static, they're exposed via 1649 * ssl.h. 1650 */ 1651static unsigned long 1652ssl_session_LHASH_HASH(const void *arg) 1653{ 1654 const SSL_SESSION *a = arg; 1655 1656 return ssl_session_hash(a); 1657} 1658 1659static int 1660ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 1661{ 1662 const SSL_SESSION *a = arg1; 1663 const SSL_SESSION *b = arg2; 1664 1665 return ssl_session_cmp(a, b); 1666} 1667 1668SSL_CTX * 1669SSL_CTX_new(const SSL_METHOD *meth) 1670{ 1671 SSL_CTX *ret; 1672 1673 if (!OPENSSL_init_ssl(0, NULL)) { 1674 SSLerrorx(SSL_R_LIBRARY_BUG); 1675 return (NULL); 1676 } 1677 1678 if (meth == NULL) { 1679 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 1680 return (NULL); 1681 } 1682 1683 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 1684 SSLerrorx(ERR_R_MALLOC_FAILURE); 1685 return (NULL); 1686 } 1687 if ((ret->internal = calloc(1, sizeof(*ret->internal))) == NULL) { 1688 free(ret); 1689 SSLerrorx(ERR_R_MALLOC_FAILURE); 1690 return (NULL); 1691 } 1692 1693 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 1694 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1695 goto err; 1696 } 1697 1698 ret->method = meth; 1699 ret->internal->min_version = meth->internal->min_version; 1700 ret->internal->max_version = meth->internal->max_version; 1701 1702 ret->cert_store = NULL; 1703 ret->internal->session_cache_mode = SSL_SESS_CACHE_SERVER; 1704 ret->internal->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1705 ret->internal->session_cache_head = NULL; 1706 ret->internal->session_cache_tail = NULL; 1707 1708 /* We take the system default */ 1709 ret->session_timeout = meth->internal->get_timeout(); 1710 1711 ret->internal->new_session_cb = 0; 1712 ret->internal->remove_session_cb = 0; 1713 ret->internal->get_session_cb = 0; 1714 ret->internal->generate_session_id = 0; 1715 1716 memset((char *)&ret->internal->stats, 0, sizeof(ret->internal->stats)); 1717 1718 ret->references = 1; 1719 ret->internal->quiet_shutdown = 0; 1720 1721 ret->internal->info_callback = NULL; 1722 1723 ret->internal->app_verify_callback = 0; 1724 ret->internal->app_verify_arg = NULL; 1725 1726 ret->internal->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 1727 ret->internal->read_ahead = 0; 1728 ret->internal->msg_callback = 0; 1729 ret->internal->msg_callback_arg = NULL; 1730 ret->verify_mode = SSL_VERIFY_NONE; 1731 ret->sid_ctx_length = 0; 1732 ret->internal->default_verify_callback = NULL; 1733 1734 if ((ret->internal->cert = ssl_cert_new()) == NULL) 1735 goto err; 1736 1737 ret->default_passwd_callback = 0; 1738 ret->default_passwd_callback_userdata = NULL; 1739 ret->internal->client_cert_cb = 0; 1740 ret->internal->app_gen_cookie_cb = 0; 1741 ret->internal->app_verify_cookie_cb = 0; 1742 1743 ret->internal->sessions = lh_SSL_SESSION_new(); 1744 if (ret->internal->sessions == NULL) 1745 goto err; 1746 ret->cert_store = X509_STORE_new(); 1747 if (ret->cert_store == NULL) 1748 goto err; 1749 1750 ssl_create_cipher_list(ret->method, &ret->cipher_list, 1751 &ret->internal->cipher_list_by_id, SSL_DEFAULT_CIPHER_LIST); 1752 if (ret->cipher_list == NULL || 1753 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 1754 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 1755 goto err2; 1756 } 1757 1758 ret->param = X509_VERIFY_PARAM_new(); 1759 if (!ret->param) 1760 goto err; 1761 1762 if ((ret->internal->client_CA = sk_X509_NAME_new_null()) == NULL) 1763 goto err; 1764 1765 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->internal->ex_data); 1766 1767 ret->extra_certs = NULL; 1768 1769 ret->internal->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 1770 1771 ret->internal->tlsext_servername_callback = 0; 1772 ret->internal->tlsext_servername_arg = NULL; 1773 1774 /* Setup RFC4507 ticket keys */ 1775 arc4random_buf(ret->internal->tlsext_tick_key_name, 16); 1776 arc4random_buf(ret->internal->tlsext_tick_hmac_key, 16); 1777 arc4random_buf(ret->internal->tlsext_tick_aes_key, 16); 1778 1779 ret->internal->tlsext_status_cb = 0; 1780 ret->internal->tlsext_status_arg = NULL; 1781 1782#ifndef OPENSSL_NO_ENGINE 1783 ret->internal->client_cert_engine = NULL; 1784#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1785#define eng_strx(x) #x 1786#define eng_str(x) eng_strx(x) 1787 /* Use specific client engine automatically... ignore errors */ 1788 { 1789 ENGINE *eng; 1790 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1791 if (!eng) { 1792 ERR_clear_error(); 1793 ENGINE_load_builtin_engines(); 1794 eng = ENGINE_by_id(eng_str( 1795 OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1796 } 1797 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1798 ERR_clear_error(); 1799 } 1800#endif 1801#endif 1802 /* 1803 * Default is to connect to non-RI servers. When RI is more widely 1804 * deployed might change this. 1805 */ 1806 ret->internal->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1807 1808 return (ret); 1809err: 1810 SSLerrorx(ERR_R_MALLOC_FAILURE); 1811err2: 1812 SSL_CTX_free(ret); 1813 return (NULL); 1814} 1815 1816void 1817SSL_CTX_free(SSL_CTX *ctx) 1818{ 1819 int i; 1820 1821 if (ctx == NULL) 1822 return; 1823 1824 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 1825 if (i > 0) 1826 return; 1827 1828 X509_VERIFY_PARAM_free(ctx->param); 1829 1830 /* 1831 * Free internal session cache. However: the remove_cb() may reference 1832 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1833 * after the sessions were flushed. 1834 * As the ex_data handling routines might also touch the session cache, 1835 * the most secure solution seems to be: empty (flush) the cache, then 1836 * free ex_data, then finally free the cache. 1837 * (See ticket [openssl.org #212].) 1838 */ 1839 if (ctx->internal->sessions != NULL) 1840 SSL_CTX_flush_sessions(ctx, 0); 1841 1842 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->internal->ex_data); 1843 1844 lh_SSL_SESSION_free(ctx->internal->sessions); 1845 1846 X509_STORE_free(ctx->cert_store); 1847 sk_SSL_CIPHER_free(ctx->cipher_list); 1848 sk_SSL_CIPHER_free(ctx->internal->cipher_list_by_id); 1849 ssl_cert_free(ctx->internal->cert); 1850 sk_X509_NAME_pop_free(ctx->internal->client_CA, X509_NAME_free); 1851 sk_X509_pop_free(ctx->extra_certs, X509_free); 1852 1853#ifndef OPENSSL_NO_SRTP 1854 if (ctx->internal->srtp_profiles) 1855 sk_SRTP_PROTECTION_PROFILE_free(ctx->internal->srtp_profiles); 1856#endif 1857 1858#ifndef OPENSSL_NO_ENGINE 1859 ENGINE_finish(ctx->internal->client_cert_engine); 1860#endif 1861 1862 free(ctx->internal->tlsext_ecpointformatlist); 1863 free(ctx->internal->tlsext_supportedgroups); 1864 1865 free(ctx->internal->alpn_client_proto_list); 1866 1867 free(ctx->internal); 1868 free(ctx); 1869} 1870 1871int 1872SSL_CTX_up_ref(SSL_CTX *ctx) 1873{ 1874 int refs = CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 1875 return ((refs > 1) ? 1 : 0); 1876} 1877 1878pem_password_cb * 1879SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 1880{ 1881 return (ctx->default_passwd_callback); 1882} 1883 1884void 1885SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1886{ 1887 ctx->default_passwd_callback = cb; 1888} 1889 1890void * 1891SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 1892{ 1893 return ctx->default_passwd_callback_userdata; 1894} 1895 1896void 1897SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 1898{ 1899 ctx->default_passwd_callback_userdata = u; 1900} 1901 1902void 1903SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *, 1904 void *), void *arg) 1905{ 1906 ctx->internal->app_verify_callback = cb; 1907 ctx->internal->app_verify_arg = arg; 1908} 1909 1910void 1911SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 1912{ 1913 ctx->verify_mode = mode; 1914 ctx->internal->default_verify_callback = cb; 1915} 1916 1917void 1918SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 1919{ 1920 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1921} 1922 1923void 1924ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) 1925{ 1926 int rsa_enc, rsa_sign, dh_tmp; 1927 int have_ecc_cert; 1928 unsigned long mask_k, mask_a; 1929 X509 *x = NULL; 1930 CERT_PKEY *cpk; 1931 1932 if (c == NULL) 1933 return; 1934 1935 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || 1936 c->dh_tmp_auto != 0); 1937 1938 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]); 1939 rsa_enc = (cpk->x509 != NULL && cpk->privatekey != NULL); 1940 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1941 rsa_sign = (cpk->x509 != NULL && cpk->privatekey != NULL); 1942 cpk = &(c->pkeys[SSL_PKEY_ECC]); 1943 have_ecc_cert = (cpk->x509 != NULL && cpk->privatekey != NULL); 1944 1945 mask_k = 0; 1946 mask_a = 0; 1947 1948 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 1949 if (cpk->x509 != NULL && cpk->privatekey !=NULL) { 1950 mask_k |= SSL_kGOST; 1951 mask_a |= SSL_aGOST01; 1952 } 1953 1954 if (rsa_enc) 1955 mask_k |= SSL_kRSA; 1956 1957 if (dh_tmp) 1958 mask_k |= SSL_kDHE; 1959 1960 if (rsa_enc || rsa_sign) 1961 mask_a |= SSL_aRSA; 1962 1963 mask_a |= SSL_aNULL; 1964 1965 /* 1966 * An ECC certificate may be usable for ECDH and/or 1967 * ECDSA cipher suites depending on the key usage extension. 1968 */ 1969 if (have_ecc_cert) { 1970 x = (c->pkeys[SSL_PKEY_ECC]).x509; 1971 1972 /* This call populates extension flags (ex_flags). */ 1973 X509_check_purpose(x, -1, 0); 1974 1975 /* Key usage, if present, must allow signing. */ 1976 if ((x->ex_flags & EXFLAG_KUSAGE) == 0 || 1977 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)) 1978 mask_a |= SSL_aECDSA; 1979 } 1980 1981 mask_k |= SSL_kECDHE; 1982 1983 c->mask_k = mask_k; 1984 c->mask_a = mask_a; 1985 c->valid = 1; 1986} 1987 1988/* See if this handshake is using an ECC cipher suite. */ 1989int 1990ssl_using_ecc_cipher(SSL *s) 1991{ 1992 unsigned long alg_a, alg_k; 1993 1994 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 1995 alg_k = S3I(s)->hs.new_cipher->algorithm_mkey; 1996 1997 return SSI(s)->tlsext_ecpointformatlist != NULL && 1998 SSI(s)->tlsext_ecpointformatlist_length > 0 && 1999 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 2000} 2001 2002int 2003ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) 2004{ 2005 const SSL_CIPHER *cs = S3I(s)->hs.new_cipher; 2006 unsigned long alg_a; 2007 2008 alg_a = cs->algorithm_auth; 2009 2010 if (alg_a & SSL_aECDSA) { 2011 /* This call populates extension flags (ex_flags). */ 2012 X509_check_purpose(x, -1, 0); 2013 2014 /* Key usage, if present, must allow signing. */ 2015 if ((x->ex_flags & EXFLAG_KUSAGE) && 2016 ((x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) == 0)) { 2017 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2018 return (0); 2019 } 2020 } 2021 2022 return (1); 2023} 2024 2025CERT_PKEY * 2026ssl_get_server_send_pkey(const SSL *s) 2027{ 2028 unsigned long alg_a; 2029 CERT *c; 2030 int i; 2031 2032 c = s->cert; 2033 ssl_set_cert_masks(c, S3I(s)->hs.new_cipher); 2034 2035 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 2036 2037 if (alg_a & SSL_aECDSA) { 2038 i = SSL_PKEY_ECC; 2039 } else if (alg_a & SSL_aRSA) { 2040 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 2041 i = SSL_PKEY_RSA_SIGN; 2042 else 2043 i = SSL_PKEY_RSA_ENC; 2044 } else if (alg_a & SSL_aGOST01) { 2045 i = SSL_PKEY_GOST01; 2046 } else { /* if (alg_a & SSL_aNULL) */ 2047 SSLerror(s, ERR_R_INTERNAL_ERROR); 2048 return (NULL); 2049 } 2050 2051 return (c->pkeys + i); 2052} 2053 2054X509 * 2055ssl_get_server_send_cert(const SSL *s) 2056{ 2057 CERT_PKEY *cpk; 2058 2059 cpk = ssl_get_server_send_pkey(s); 2060 if (!cpk) 2061 return (NULL); 2062 return (cpk->x509); 2063} 2064 2065EVP_PKEY * 2066ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2067 const struct ssl_sigalg **sap) 2068{ 2069 const struct ssl_sigalg *sigalg = NULL; 2070 EVP_PKEY *pkey = NULL; 2071 unsigned long alg_a; 2072 CERT *c; 2073 int idx = -1; 2074 2075 alg_a = cipher->algorithm_auth; 2076 c = s->cert; 2077 2078 if (alg_a & SSL_aRSA) { 2079 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 2080 idx = SSL_PKEY_RSA_SIGN; 2081 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 2082 idx = SSL_PKEY_RSA_ENC; 2083 } else if ((alg_a & SSL_aECDSA) && 2084 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2085 idx = SSL_PKEY_ECC; 2086 if (idx == -1) { 2087 SSLerror(s, ERR_R_INTERNAL_ERROR); 2088 return (NULL); 2089 } 2090 2091 pkey = c->pkeys[idx].privatekey; 2092 sigalg = c->pkeys[idx].sigalg; 2093 if (!SSL_USE_SIGALGS(s)) { 2094 if (pkey->type == EVP_PKEY_RSA) { 2095 sigalg = ssl_sigalg_lookup(SIGALG_RSA_PKCS1_MD5_SHA1); 2096 } else if (pkey->type == EVP_PKEY_EC) { 2097 sigalg = ssl_sigalg_lookup(SIGALG_ECDSA_SHA1); 2098 } else { 2099 SSLerror(s, SSL_R_UNKNOWN_PKEY_TYPE); 2100 return (NULL); 2101 } 2102 } 2103 if (sigalg == NULL) { 2104 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2105 return (NULL); 2106 } 2107 *pmd = sigalg->md(); 2108 *sap = sigalg; 2109 2110 return (pkey); 2111} 2112 2113DH * 2114ssl_get_auto_dh(SSL *s) 2115{ 2116 CERT_PKEY *cpk; 2117 int keylen; 2118 DH *dhp; 2119 2120 if (s->cert->dh_tmp_auto == 2) { 2121 keylen = 1024; 2122 } else if (S3I(s)->hs.new_cipher->algorithm_auth & SSL_aNULL) { 2123 keylen = 1024; 2124 if (S3I(s)->hs.new_cipher->strength_bits == 256) 2125 keylen = 3072; 2126 } else { 2127 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2128 return (NULL); 2129 if (cpk->privatekey == NULL || cpk->privatekey->pkey.dh == NULL) 2130 return (NULL); 2131 keylen = EVP_PKEY_bits(cpk->privatekey); 2132 } 2133 2134 if ((dhp = DH_new()) == NULL) 2135 return (NULL); 2136 2137 dhp->g = BN_new(); 2138 if (dhp->g != NULL) 2139 BN_set_word(dhp->g, 2); 2140 2141 if (keylen >= 8192) 2142 dhp->p = get_rfc3526_prime_8192(NULL); 2143 else if (keylen >= 4096) 2144 dhp->p = get_rfc3526_prime_4096(NULL); 2145 else if (keylen >= 3072) 2146 dhp->p = get_rfc3526_prime_3072(NULL); 2147 else if (keylen >= 2048) 2148 dhp->p = get_rfc3526_prime_2048(NULL); 2149 else if (keylen >= 1536) 2150 dhp->p = get_rfc3526_prime_1536(NULL); 2151 else 2152 dhp->p = get_rfc2409_prime_1024(NULL); 2153 2154 if (dhp->p == NULL || dhp->g == NULL) { 2155 DH_free(dhp); 2156 return (NULL); 2157 } 2158 return (dhp); 2159} 2160 2161void 2162ssl_update_cache(SSL *s, int mode) 2163{ 2164 int i; 2165 2166 /* 2167 * If the session_id_length is 0, we are not supposed to cache it, 2168 * and it would be rather hard to do anyway :-) 2169 */ 2170 if (s->session->session_id_length == 0) 2171 return; 2172 2173 i = s->session_ctx->internal->session_cache_mode; 2174 if ((i & mode) && (!s->internal->hit) && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2175 || SSL_CTX_add_session(s->session_ctx, s->session)) 2176 && (s->session_ctx->internal->new_session_cb != NULL)) { 2177 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2178 if (!s->session_ctx->internal->new_session_cb(s, s->session)) 2179 SSL_SESSION_free(s->session); 2180 } 2181 2182 /* auto flush every 255 connections */ 2183 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2184 ((i & mode) == mode)) { 2185 if ((((mode & SSL_SESS_CACHE_CLIENT) ? 2186 s->session_ctx->internal->stats.sess_connect_good : 2187 s->session_ctx->internal->stats.sess_accept_good) & 0xff) == 0xff) { 2188 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2189 } 2190 } 2191} 2192 2193const SSL_METHOD * 2194SSL_get_ssl_method(SSL *s) 2195{ 2196 return (s->method); 2197} 2198 2199int 2200SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) 2201{ 2202 int conn = -1; 2203 int ret = 1; 2204 2205 if (s->method != meth) { 2206 if (s->internal->handshake_func != NULL) 2207 conn = (s->internal->handshake_func == s->method->internal->ssl_connect); 2208 2209 if (s->method->internal->version == meth->internal->version) 2210 s->method = meth; 2211 else { 2212 s->method->internal->ssl_free(s); 2213 s->method = meth; 2214 ret = s->method->internal->ssl_new(s); 2215 } 2216 2217 if (conn == 1) 2218 s->internal->handshake_func = meth->internal->ssl_connect; 2219 else if (conn == 0) 2220 s->internal->handshake_func = meth->internal->ssl_accept; 2221 } 2222 return (ret); 2223} 2224 2225int 2226SSL_get_error(const SSL *s, int i) 2227{ 2228 int reason; 2229 unsigned long l; 2230 BIO *bio; 2231 2232 if (i > 0) 2233 return (SSL_ERROR_NONE); 2234 2235 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2236 * etc, where we do encode the error */ 2237 if ((l = ERR_peek_error()) != 0) { 2238 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2239 return (SSL_ERROR_SYSCALL); 2240 else 2241 return (SSL_ERROR_SSL); 2242 } 2243 2244 if ((i < 0) && SSL_want_read(s)) { 2245 bio = SSL_get_rbio(s); 2246 if (BIO_should_read(bio)) { 2247 return (SSL_ERROR_WANT_READ); 2248 } else if (BIO_should_write(bio)) { 2249 /* 2250 * This one doesn't make too much sense... We never 2251 * try to write to the rbio, and an application 2252 * program where rbio and wbio are separate couldn't 2253 * even know what it should wait for. However if we 2254 * ever set s->internal->rwstate incorrectly (so that we have 2255 * SSL_want_read(s) instead of SSL_want_write(s)) 2256 * and rbio and wbio *are* the same, this test works 2257 * around that bug; so it might be safer to keep it. 2258 */ 2259 return (SSL_ERROR_WANT_WRITE); 2260 } else if (BIO_should_io_special(bio)) { 2261 reason = BIO_get_retry_reason(bio); 2262 if (reason == BIO_RR_CONNECT) 2263 return (SSL_ERROR_WANT_CONNECT); 2264 else if (reason == BIO_RR_ACCEPT) 2265 return (SSL_ERROR_WANT_ACCEPT); 2266 else 2267 return (SSL_ERROR_SYSCALL); /* unknown */ 2268 } 2269 } 2270 2271 if ((i < 0) && SSL_want_write(s)) { 2272 bio = SSL_get_wbio(s); 2273 if (BIO_should_write(bio)) { 2274 return (SSL_ERROR_WANT_WRITE); 2275 } else if (BIO_should_read(bio)) { 2276 /* 2277 * See above (SSL_want_read(s) with 2278 * BIO_should_write(bio)) 2279 */ 2280 return (SSL_ERROR_WANT_READ); 2281 } else if (BIO_should_io_special(bio)) { 2282 reason = BIO_get_retry_reason(bio); 2283 if (reason == BIO_RR_CONNECT) 2284 return (SSL_ERROR_WANT_CONNECT); 2285 else if (reason == BIO_RR_ACCEPT) 2286 return (SSL_ERROR_WANT_ACCEPT); 2287 else 2288 return (SSL_ERROR_SYSCALL); 2289 } 2290 } 2291 if ((i < 0) && SSL_want_x509_lookup(s)) { 2292 return (SSL_ERROR_WANT_X509_LOOKUP); 2293 } 2294 2295 if (i == 0) { 2296 if ((s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) && 2297 (S3I(s)->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2298 return (SSL_ERROR_ZERO_RETURN); 2299 } 2300 return (SSL_ERROR_SYSCALL); 2301} 2302 2303int 2304SSL_do_handshake(SSL *s) 2305{ 2306 int ret = 1; 2307 2308 if (s->internal->handshake_func == NULL) { 2309 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2310 return (-1); 2311 } 2312 2313 s->method->internal->ssl_renegotiate_check(s); 2314 2315 if (SSL_in_init(s) || SSL_in_before(s)) { 2316 ret = s->internal->handshake_func(s); 2317 } 2318 return (ret); 2319} 2320 2321/* 2322 * For the next 2 functions, SSL_clear() sets shutdown and so 2323 * one of these calls will reset it 2324 */ 2325void 2326SSL_set_accept_state(SSL *s) 2327{ 2328 s->server = 1; 2329 s->internal->shutdown = 0; 2330 S3I(s)->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2331 s->internal->handshake_func = s->method->internal->ssl_accept; 2332 ssl_clear_cipher_state(s); 2333} 2334 2335void 2336SSL_set_connect_state(SSL *s) 2337{ 2338 s->server = 0; 2339 s->internal->shutdown = 0; 2340 S3I(s)->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2341 s->internal->handshake_func = s->method->internal->ssl_connect; 2342 ssl_clear_cipher_state(s); 2343} 2344 2345int 2346ssl_undefined_function(SSL *s) 2347{ 2348 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2349 return (0); 2350} 2351 2352int 2353ssl_undefined_void_function(void) 2354{ 2355 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2356 return (0); 2357} 2358 2359int 2360ssl_undefined_const_function(const SSL *s) 2361{ 2362 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2363 return (0); 2364} 2365 2366const char * 2367ssl_version_string(int ver) 2368{ 2369 switch (ver) { 2370 case DTLS1_VERSION: 2371 return (SSL_TXT_DTLS1); 2372 case TLS1_VERSION: 2373 return (SSL_TXT_TLSV1); 2374 case TLS1_1_VERSION: 2375 return (SSL_TXT_TLSV1_1); 2376 case TLS1_2_VERSION: 2377 return (SSL_TXT_TLSV1_2); 2378 case TLS1_3_VERSION: 2379 return (SSL_TXT_TLSV1_3); 2380 default: 2381 return ("unknown"); 2382 } 2383} 2384 2385const char * 2386SSL_get_version(const SSL *s) 2387{ 2388 return ssl_version_string(s->version); 2389} 2390 2391SSL * 2392SSL_dup(SSL *s) 2393{ 2394 STACK_OF(X509_NAME) *sk; 2395 X509_NAME *xn; 2396 SSL *ret; 2397 int i; 2398 2399 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2400 goto err; 2401 2402 ret->version = s->version; 2403 ret->internal->type = s->internal->type; 2404 ret->method = s->method; 2405 2406 if (s->session != NULL) { 2407 if (!SSL_copy_session_id(ret, s)) 2408 goto err; 2409 } else { 2410 /* 2411 * No session has been established yet, so we have to expect 2412 * that s->cert or ret->cert will be changed later -- 2413 * they should not both point to the same object, 2414 * and thus we can't use SSL_copy_session_id. 2415 */ 2416 2417 ret->method->internal->ssl_free(ret); 2418 ret->method = s->method; 2419 ret->method->internal->ssl_new(ret); 2420 2421 ssl_cert_free(ret->cert); 2422 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2423 goto err; 2424 2425 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2426 s->sid_ctx_length)) 2427 goto err; 2428 } 2429 2430 ret->internal->options = s->internal->options; 2431 ret->internal->mode = s->internal->mode; 2432 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2433 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2434 ret->internal->msg_callback = s->internal->msg_callback; 2435 ret->internal->msg_callback_arg = s->internal->msg_callback_arg; 2436 SSL_set_verify(ret, SSL_get_verify_mode(s), 2437 SSL_get_verify_callback(s)); 2438 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2439 ret->internal->generate_session_id = s->internal->generate_session_id; 2440 2441 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2442 2443 ret->internal->debug = s->internal->debug; 2444 2445 /* copy app data, a little dangerous perhaps */ 2446 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2447 &ret->internal->ex_data, &s->internal->ex_data)) 2448 goto err; 2449 2450 /* setup rbio, and wbio */ 2451 if (s->rbio != NULL) { 2452 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2453 goto err; 2454 } 2455 if (s->wbio != NULL) { 2456 if (s->wbio != s->rbio) { 2457 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2458 goto err; 2459 } else 2460 ret->wbio = ret->rbio; 2461 } 2462 ret->internal->rwstate = s->internal->rwstate; 2463 ret->internal->in_handshake = s->internal->in_handshake; 2464 ret->internal->handshake_func = s->internal->handshake_func; 2465 ret->server = s->server; 2466 ret->internal->renegotiate = s->internal->renegotiate; 2467 ret->internal->new_session = s->internal->new_session; 2468 ret->internal->quiet_shutdown = s->internal->quiet_shutdown; 2469 ret->internal->shutdown = s->internal->shutdown; 2470 /* SSL_dup does not really work at any state, though */ 2471 S3I(ret)->hs.state = S3I(s)->hs.state; 2472 ret->internal->rstate = s->internal->rstate; 2473 2474 /* 2475 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2476 * ret->init_off 2477 */ 2478 ret->internal->init_num = 0; 2479 2480 ret->internal->hit = s->internal->hit; 2481 2482 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2483 2484 /* dup the cipher_list and cipher_list_by_id stacks */ 2485 if (s->cipher_list != NULL) { 2486 if ((ret->cipher_list = 2487 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2488 goto err; 2489 } 2490 if (s->internal->cipher_list_by_id != NULL) { 2491 if ((ret->internal->cipher_list_by_id = 2492 sk_SSL_CIPHER_dup(s->internal->cipher_list_by_id)) == NULL) 2493 goto err; 2494 } 2495 2496 /* Dup the client_CA list */ 2497 if (s->internal->client_CA != NULL) { 2498 if ((sk = sk_X509_NAME_dup(s->internal->client_CA)) == NULL) goto err; 2499 ret->internal->client_CA = sk; 2500 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2501 xn = sk_X509_NAME_value(sk, i); 2502 if (sk_X509_NAME_set(sk, i, 2503 X509_NAME_dup(xn)) == NULL) { 2504 X509_NAME_free(xn); 2505 goto err; 2506 } 2507 } 2508 } 2509 2510 return ret; 2511 err: 2512 SSL_free(ret); 2513 return NULL; 2514} 2515 2516void 2517ssl_clear_cipher_state(SSL *s) 2518{ 2519 ssl_clear_cipher_read_state(s); 2520 ssl_clear_cipher_write_state(s); 2521} 2522 2523void 2524ssl_clear_cipher_read_state(SSL *s) 2525{ 2526 EVP_CIPHER_CTX_free(s->enc_read_ctx); 2527 s->enc_read_ctx = NULL; 2528 EVP_MD_CTX_free(s->read_hash); 2529 s->read_hash = NULL; 2530 2531 if (s->internal->aead_read_ctx != NULL) { 2532 EVP_AEAD_CTX_cleanup(&s->internal->aead_read_ctx->ctx); 2533 free(s->internal->aead_read_ctx); 2534 s->internal->aead_read_ctx = NULL; 2535 } 2536} 2537 2538void 2539ssl_clear_cipher_write_state(SSL *s) 2540{ 2541 EVP_CIPHER_CTX_free(s->internal->enc_write_ctx); 2542 s->internal->enc_write_ctx = NULL; 2543 EVP_MD_CTX_free(s->internal->write_hash); 2544 s->internal->write_hash = NULL; 2545 2546 if (s->internal->aead_write_ctx != NULL) { 2547 EVP_AEAD_CTX_cleanup(&s->internal->aead_write_ctx->ctx); 2548 free(s->internal->aead_write_ctx); 2549 s->internal->aead_write_ctx = NULL; 2550 } 2551} 2552 2553/* Fix this function so that it takes an optional type parameter */ 2554X509 * 2555SSL_get_certificate(const SSL *s) 2556{ 2557 return (s->cert->key->x509); 2558} 2559 2560/* Fix this function so that it takes an optional type parameter */ 2561EVP_PKEY * 2562SSL_get_privatekey(const SSL *s) 2563{ 2564 return (s->cert->key->privatekey); 2565} 2566 2567const SSL_CIPHER * 2568SSL_get_current_cipher(const SSL *s) 2569{ 2570 if ((s->session != NULL) && (s->session->cipher != NULL)) 2571 return (s->session->cipher); 2572 return (NULL); 2573} 2574const void * 2575SSL_get_current_compression(SSL *s) 2576{ 2577 return (NULL); 2578} 2579 2580const void * 2581SSL_get_current_expansion(SSL *s) 2582{ 2583 return (NULL); 2584} 2585 2586size_t 2587SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 2588{ 2589 size_t len = sizeof(s->s3->client_random); 2590 2591 if (out == NULL) 2592 return len; 2593 2594 if (len > max_out) 2595 len = max_out; 2596 2597 memcpy(out, s->s3->client_random, len); 2598 2599 return len; 2600} 2601 2602size_t 2603SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 2604{ 2605 size_t len = sizeof(s->s3->server_random); 2606 2607 if (out == NULL) 2608 return len; 2609 2610 if (len > max_out) 2611 len = max_out; 2612 2613 memcpy(out, s->s3->server_random, len); 2614 2615 return len; 2616} 2617 2618int 2619ssl_init_wbio_buffer(SSL *s, int push) 2620{ 2621 BIO *bbio; 2622 2623 if (s->bbio == NULL) { 2624 bbio = BIO_new(BIO_f_buffer()); 2625 if (bbio == NULL) 2626 return (0); 2627 s->bbio = bbio; 2628 } else { 2629 bbio = s->bbio; 2630 if (s->bbio == s->wbio) 2631 s->wbio = BIO_pop(s->wbio); 2632 } 2633 (void)BIO_reset(bbio); 2634/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2635 if (!BIO_set_read_buffer_size(bbio, 1)) { 2636 SSLerror(s, ERR_R_BUF_LIB); 2637 return (0); 2638 } 2639 if (push) { 2640 if (s->wbio != bbio) 2641 s->wbio = BIO_push(bbio, s->wbio); 2642 } else { 2643 if (s->wbio == bbio) 2644 s->wbio = BIO_pop(bbio); 2645 } 2646 return (1); 2647} 2648 2649void 2650ssl_free_wbio_buffer(SSL *s) 2651{ 2652 if (s == NULL) 2653 return; 2654 2655 if (s->bbio == NULL) 2656 return; 2657 2658 if (s->bbio == s->wbio) { 2659 /* remove buffering */ 2660 s->wbio = BIO_pop(s->wbio); 2661 } 2662 BIO_free(s->bbio); 2663 s->bbio = NULL; 2664} 2665 2666void 2667SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 2668{ 2669 ctx->internal->quiet_shutdown = mode; 2670} 2671 2672int 2673SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2674{ 2675 return (ctx->internal->quiet_shutdown); 2676} 2677 2678void 2679SSL_set_quiet_shutdown(SSL *s, int mode) 2680{ 2681 s->internal->quiet_shutdown = mode; 2682} 2683 2684int 2685SSL_get_quiet_shutdown(const SSL *s) 2686{ 2687 return (s->internal->quiet_shutdown); 2688} 2689 2690void 2691SSL_set_shutdown(SSL *s, int mode) 2692{ 2693 s->internal->shutdown = mode; 2694} 2695 2696int 2697SSL_get_shutdown(const SSL *s) 2698{ 2699 return (s->internal->shutdown); 2700} 2701 2702int 2703SSL_version(const SSL *s) 2704{ 2705 return (s->version); 2706} 2707 2708SSL_CTX * 2709SSL_get_SSL_CTX(const SSL *ssl) 2710{ 2711 return (ssl->ctx); 2712} 2713 2714SSL_CTX * 2715SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2716{ 2717 CERT *ocert = ssl->cert; 2718 2719 if (ssl->ctx == ctx) 2720 return (ssl->ctx); 2721 if (ctx == NULL) 2722 ctx = ssl->initial_ctx; 2723 ssl->cert = ssl_cert_dup(ctx->internal->cert); 2724 if (ocert != NULL) { 2725 int i; 2726 /* Copy negotiated sigalg from original certificate. */ 2727 for (i = 0; i < SSL_PKEY_NUM; i++) 2728 ssl->cert->pkeys[i].sigalg = ocert->pkeys[i].sigalg; 2729 ssl_cert_free(ocert); 2730 } 2731 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 2732 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2733 ssl->ctx = ctx; 2734 return (ssl->ctx); 2735} 2736 2737int 2738SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2739{ 2740 return (X509_STORE_set_default_paths(ctx->cert_store)); 2741} 2742 2743int 2744SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2745 const char *CApath) 2746{ 2747 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 2748} 2749 2750int 2751SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 2752{ 2753 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 2754} 2755 2756void 2757SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 2758{ 2759 ssl->internal->info_callback = cb; 2760} 2761 2762void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 2763{ 2764 return (ssl->internal->info_callback); 2765} 2766 2767int 2768SSL_state(const SSL *ssl) 2769{ 2770 return (S3I(ssl)->hs.state); 2771} 2772 2773void 2774SSL_set_state(SSL *ssl, int state) 2775{ 2776 S3I(ssl)->hs.state = state; 2777} 2778 2779void 2780SSL_set_verify_result(SSL *ssl, long arg) 2781{ 2782 ssl->verify_result = arg; 2783} 2784 2785long 2786SSL_get_verify_result(const SSL *ssl) 2787{ 2788 return (ssl->verify_result); 2789} 2790 2791int 2792SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2793 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2794{ 2795 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2796 new_func, dup_func, free_func)); 2797} 2798 2799int 2800SSL_set_ex_data(SSL *s, int idx, void *arg) 2801{ 2802 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2803} 2804 2805void * 2806SSL_get_ex_data(const SSL *s, int idx) 2807{ 2808 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2809} 2810 2811int 2812SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2813 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2814{ 2815 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2816 new_func, dup_func, free_func)); 2817} 2818 2819int 2820SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 2821{ 2822 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2823} 2824 2825void * 2826SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 2827{ 2828 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2829} 2830 2831int 2832ssl_ok(SSL *s) 2833{ 2834 return (1); 2835} 2836 2837X509_STORE * 2838SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2839{ 2840 return (ctx->cert_store); 2841} 2842 2843void 2844SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 2845{ 2846 X509_STORE_free(ctx->cert_store); 2847 ctx->cert_store = store; 2848} 2849 2850X509 * 2851SSL_CTX_get0_certificate(const SSL_CTX *ctx) 2852{ 2853 if (ctx->internal->cert == NULL) 2854 return NULL; 2855 2856 return ctx->internal->cert->key->x509; 2857} 2858 2859int 2860SSL_want(const SSL *s) 2861{ 2862 return (s->internal->rwstate); 2863} 2864 2865void 2866SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 2867 int keylength)) 2868{ 2869 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2870} 2871 2872void 2873SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 2874 int keylength)) 2875{ 2876 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2877} 2878 2879void 2880SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 2881 int keylength)) 2882{ 2883 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2884} 2885 2886void 2887SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 2888 int keylength)) 2889{ 2890 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2891} 2892 2893void 2894SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 2895 int is_export, int keylength)) 2896{ 2897 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 2898 (void (*)(void))ecdh); 2899} 2900 2901void 2902SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 2903 int keylength)) 2904{ 2905 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2906} 2907 2908 2909void 2910SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 2911 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2912{ 2913 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 2914 (void (*)(void))cb); 2915} 2916 2917void 2918SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 2919 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2920{ 2921 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2922} 2923 2924void 2925SSL_set_debug(SSL *s, int debug) 2926{ 2927 s->internal->debug = debug; 2928} 2929 2930int 2931SSL_cache_hit(SSL *s) 2932{ 2933 return (s->internal->hit); 2934} 2935 2936int 2937SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 2938{ 2939 return ctx->internal->min_version; 2940} 2941 2942int 2943SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 2944{ 2945 return ssl_version_set_min(ctx->method, version, 2946 ctx->internal->max_version, &ctx->internal->min_version); 2947} 2948 2949int 2950SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 2951{ 2952 return ctx->internal->max_version; 2953} 2954 2955int 2956SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 2957{ 2958 return ssl_version_set_max(ctx->method, version, 2959 ctx->internal->min_version, &ctx->internal->max_version); 2960} 2961 2962int 2963SSL_get_min_proto_version(SSL *ssl) 2964{ 2965 return ssl->internal->min_version; 2966} 2967 2968int 2969SSL_set_min_proto_version(SSL *ssl, uint16_t version) 2970{ 2971 return ssl_version_set_min(ssl->method, version, 2972 ssl->internal->max_version, &ssl->internal->min_version); 2973} 2974int 2975SSL_get_max_proto_version(SSL *ssl) 2976{ 2977 return ssl->internal->max_version; 2978} 2979 2980int 2981SSL_set_max_proto_version(SSL *ssl, uint16_t version) 2982{ 2983 return ssl_version_set_max(ssl->method, version, 2984 ssl->internal->min_version, &ssl->internal->max_version); 2985} 2986 2987static int 2988ssl_cipher_id_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 2989{ 2990 SSL_CIPHER const *a = a_; 2991 SSL_CIPHER const *b = b_; 2992 return ssl_cipher_id_cmp(a, b); 2993} 2994 2995SSL_CIPHER * 2996OBJ_bsearch_ssl_cipher_id(SSL_CIPHER *key, SSL_CIPHER const *base, int num) 2997{ 2998 return (SSL_CIPHER *)OBJ_bsearch_(key, base, num, sizeof(SSL_CIPHER), 2999 ssl_cipher_id_cmp_BSEARCH_CMP_FN); 3000} 3001