ssl_lib.c revision 1.220
1/* $OpenBSD: ssl_lib.c,v 1.220 2020/08/11 18:39:40 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) *sk; 229 230 ctx->method = meth; 231 232 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), 233 &(ctx->internal->cipher_list_by_id), SSL_DEFAULT_CIPHER_LIST); 234 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 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 s->references = 1; 348 s->server = (ctx->method->internal->ssl_accept == ssl_undefined_function) ? 0 : 1; 349 350 SSL_clear(s); 351 352 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 353 354 return (s); 355 356 err: 357 SSL_free(s); 358 SSLerrorx(ERR_R_MALLOC_FAILURE); 359 return (NULL); 360} 361 362int 363SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 364 unsigned int sid_ctx_len) 365{ 366 if (sid_ctx_len > sizeof ctx->sid_ctx) { 367 SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 368 return (0); 369 } 370 ctx->sid_ctx_length = sid_ctx_len; 371 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 372 373 return (1); 374} 375 376int 377SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 378 unsigned int sid_ctx_len) 379{ 380 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 381 SSLerror(ssl, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 382 return (0); 383 } 384 ssl->sid_ctx_length = sid_ctx_len; 385 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 386 387 return (1); 388} 389 390int 391SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 392{ 393 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 394 ctx->internal->generate_session_id = cb; 395 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 396 return (1); 397} 398 399int 400SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 401{ 402 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 403 ssl->internal->generate_session_id = cb; 404 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 405 return (1); 406} 407 408int 409SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 410 unsigned int id_len) 411{ 412 /* 413 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 414 * shows how we can "construct" a session to give us the desired 415 * check - ie. to find if there's a session in the hash table 416 * that would conflict with any new session built out of this 417 * id/id_len and the ssl_version in use by this SSL. 418 */ 419 SSL_SESSION r, *p; 420 421 if (id_len > sizeof r.session_id) 422 return (0); 423 424 r.ssl_version = ssl->version; 425 r.session_id_length = id_len; 426 memcpy(r.session_id, id, id_len); 427 428 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 429 p = lh_SSL_SESSION_retrieve(ssl->ctx->internal->sessions, &r); 430 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 431 return (p != NULL); 432} 433 434int 435SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 436{ 437 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 438} 439 440int 441SSL_set_purpose(SSL *s, int purpose) 442{ 443 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 444} 445 446int 447SSL_CTX_set_trust(SSL_CTX *s, int trust) 448{ 449 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 450} 451 452int 453SSL_set_trust(SSL *s, int trust) 454{ 455 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 456} 457 458int 459SSL_set1_host(SSL *s, const char *hostname) 460{ 461 struct in_addr ina; 462 struct in6_addr in6a; 463 464 if (hostname != NULL && *hostname != '\0' && 465 (inet_pton(AF_INET, hostname, &ina) == 1 || 466 inet_pton(AF_INET6, hostname, &in6a) == 1)) 467 return X509_VERIFY_PARAM_set1_ip_asc(s->param, hostname); 468 else 469 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); 470} 471 472X509_VERIFY_PARAM * 473SSL_CTX_get0_param(SSL_CTX *ctx) 474{ 475 return (ctx->param); 476} 477 478int 479SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 480{ 481 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 482} 483 484X509_VERIFY_PARAM * 485SSL_get0_param(SSL *ssl) 486{ 487 return (ssl->param); 488} 489 490int 491SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 492{ 493 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 494} 495 496void 497SSL_free(SSL *s) 498{ 499 int i; 500 501 if (s == NULL) 502 return; 503 504 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 505 if (i > 0) 506 return; 507 508 X509_VERIFY_PARAM_free(s->param); 509 510 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 511 512 if (s->bbio != NULL) { 513 /* If the buffering BIO is in place, pop it off */ 514 if (s->bbio == s->wbio) { 515 s->wbio = BIO_pop(s->wbio); 516 } 517 BIO_free(s->bbio); 518 s->bbio = NULL; 519 } 520 521 if (s->rbio != s->wbio) 522 BIO_free_all(s->rbio); 523 BIO_free_all(s->wbio); 524 525 tls13_ctx_free(s->internal->tls13); 526 527 BUF_MEM_free(s->internal->init_buf); 528 529 /* add extra stuff */ 530 sk_SSL_CIPHER_free(s->cipher_list); 531 sk_SSL_CIPHER_free(s->internal->cipher_list_by_id); 532 533 /* Make the next call work :-) */ 534 if (s->session != NULL) { 535 ssl_clear_bad_session(s); 536 SSL_SESSION_free(s->session); 537 } 538 539 ssl_clear_cipher_state(s); 540 541 ssl_cert_free(s->cert); 542 543 free(s->tlsext_hostname); 544 SSL_CTX_free(s->initial_ctx); 545 546 free(s->internal->tlsext_ecpointformatlist); 547 free(s->internal->tlsext_supportedgroups); 548 549 sk_X509_EXTENSION_pop_free(s->internal->tlsext_ocsp_exts, 550 X509_EXTENSION_free); 551 sk_OCSP_RESPID_pop_free(s->internal->tlsext_ocsp_ids, OCSP_RESPID_free); 552 free(s->internal->tlsext_ocsp_resp); 553 554 sk_X509_NAME_pop_free(s->internal->client_CA, X509_NAME_free); 555 556 if (s->method != NULL) 557 s->method->internal->ssl_free(s); 558 559 SSL_CTX_free(s->ctx); 560 561 free(s->internal->alpn_client_proto_list); 562 563#ifndef OPENSSL_NO_SRTP 564 sk_SRTP_PROTECTION_PROFILE_free(s->internal->srtp_profiles); 565#endif 566 567 free(s->internal); 568 free(s); 569} 570 571int 572SSL_up_ref(SSL *s) 573{ 574 int refs = CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL); 575 return (refs > 1) ? 1 : 0; 576} 577 578void 579SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 580{ 581 /* If the output buffering BIO is still in place, remove it */ 582 if (s->bbio != NULL) { 583 if (s->wbio == s->bbio) { 584 s->wbio = s->wbio->next_bio; 585 s->bbio->next_bio = NULL; 586 } 587 } 588 589 if (s->rbio != rbio && s->rbio != s->wbio) 590 BIO_free_all(s->rbio); 591 if (s->wbio != wbio) 592 BIO_free_all(s->wbio); 593 s->rbio = rbio; 594 s->wbio = wbio; 595} 596 597BIO * 598SSL_get_rbio(const SSL *s) 599{ 600 return (s->rbio); 601} 602 603BIO * 604SSL_get_wbio(const SSL *s) 605{ 606 return (s->wbio); 607} 608 609int 610SSL_get_fd(const SSL *s) 611{ 612 return (SSL_get_rfd(s)); 613} 614 615int 616SSL_get_rfd(const SSL *s) 617{ 618 int ret = -1; 619 BIO *b, *r; 620 621 b = SSL_get_rbio(s); 622 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 623 if (r != NULL) 624 BIO_get_fd(r, &ret); 625 return (ret); 626} 627 628int 629SSL_get_wfd(const SSL *s) 630{ 631 int ret = -1; 632 BIO *b, *r; 633 634 b = SSL_get_wbio(s); 635 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 636 if (r != NULL) 637 BIO_get_fd(r, &ret); 638 return (ret); 639} 640 641int 642SSL_set_fd(SSL *s, int fd) 643{ 644 int ret = 0; 645 BIO *bio = NULL; 646 647 bio = BIO_new(BIO_s_socket()); 648 649 if (bio == NULL) { 650 SSLerror(s, ERR_R_BUF_LIB); 651 goto err; 652 } 653 BIO_set_fd(bio, fd, BIO_NOCLOSE); 654 SSL_set_bio(s, bio, bio); 655 ret = 1; 656err: 657 return (ret); 658} 659 660int 661SSL_set_wfd(SSL *s, int fd) 662{ 663 int ret = 0; 664 BIO *bio = NULL; 665 666 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 667 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 668 bio = BIO_new(BIO_s_socket()); 669 670 if (bio == NULL) { 671 SSLerror(s, ERR_R_BUF_LIB); 672 goto err; 673 } 674 BIO_set_fd(bio, fd, BIO_NOCLOSE); 675 SSL_set_bio(s, SSL_get_rbio(s), bio); 676 } else 677 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 678 ret = 1; 679err: 680 return (ret); 681} 682 683int 684SSL_set_rfd(SSL *s, int fd) 685{ 686 int ret = 0; 687 BIO *bio = NULL; 688 689 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 690 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 691 bio = BIO_new(BIO_s_socket()); 692 693 if (bio == NULL) { 694 SSLerror(s, ERR_R_BUF_LIB); 695 goto err; 696 } 697 BIO_set_fd(bio, fd, BIO_NOCLOSE); 698 SSL_set_bio(s, bio, SSL_get_wbio(s)); 699 } else 700 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 701 ret = 1; 702err: 703 return (ret); 704} 705 706 707/* return length of latest Finished message we sent, copy to 'buf' */ 708size_t 709SSL_get_finished(const SSL *s, void *buf, size_t count) 710{ 711 size_t ret; 712 713 ret = S3I(s)->tmp.finish_md_len; 714 if (count > ret) 715 count = ret; 716 memcpy(buf, S3I(s)->tmp.finish_md, count); 717 return (ret); 718} 719 720/* return length of latest Finished message we expected, copy to 'buf' */ 721size_t 722SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 723{ 724 size_t ret; 725 726 ret = S3I(s)->tmp.peer_finish_md_len; 727 if (count > ret) 728 count = ret; 729 memcpy(buf, S3I(s)->tmp.peer_finish_md, count); 730 return (ret); 731} 732 733 734int 735SSL_get_verify_mode(const SSL *s) 736{ 737 return (s->verify_mode); 738} 739 740int 741SSL_get_verify_depth(const SSL *s) 742{ 743 return (X509_VERIFY_PARAM_get_depth(s->param)); 744} 745 746int 747(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 748{ 749 return (s->internal->verify_callback); 750} 751 752int 753SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 754{ 755 return (ctx->verify_mode); 756} 757 758int 759SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 760{ 761 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 762} 763 764int 765(*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 766{ 767 return (ctx->internal->default_verify_callback); 768} 769 770void 771SSL_set_verify(SSL *s, int mode, 772 int (*callback)(int ok, X509_STORE_CTX *ctx)) 773{ 774 s->verify_mode = mode; 775 if (callback != NULL) 776 s->internal->verify_callback = callback; 777} 778 779void 780SSL_set_verify_depth(SSL *s, int depth) 781{ 782 X509_VERIFY_PARAM_set_depth(s->param, depth); 783} 784 785void 786SSL_set_read_ahead(SSL *s, int yes) 787{ 788 s->internal->read_ahead = yes; 789} 790 791int 792SSL_get_read_ahead(const SSL *s) 793{ 794 return (s->internal->read_ahead); 795} 796 797int 798SSL_pending(const SSL *s) 799{ 800 return (s->method->internal->ssl_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 940static long 941ssl_get_default_timeout() 942{ 943 /* 944 * 2 hours, the 24 hours mentioned in the TLSv1 spec 945 * is way too long for http, the cache would over fill. 946 */ 947 return (2 * 60 * 60); 948} 949 950long 951SSL_get_default_timeout(const SSL *s) 952{ 953 return (ssl_get_default_timeout()); 954} 955 956int 957SSL_read(SSL *s, void *buf, int num) 958{ 959 if (s->internal->handshake_func == NULL) { 960 SSLerror(s, SSL_R_UNINITIALIZED); 961 return (-1); 962 } 963 964 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 965 s->internal->rwstate = SSL_NOTHING; 966 return (0); 967 } 968 return ssl3_read(s, buf, num); 969} 970 971int 972SSL_peek(SSL *s, void *buf, int num) 973{ 974 if (s->internal->handshake_func == NULL) { 975 SSLerror(s, SSL_R_UNINITIALIZED); 976 return (-1); 977 } 978 979 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 980 return (0); 981 } 982 return ssl3_peek(s, buf, num); 983} 984 985int 986SSL_write(SSL *s, const void *buf, int num) 987{ 988 if (s->internal->handshake_func == NULL) { 989 SSLerror(s, SSL_R_UNINITIALIZED); 990 return (-1); 991 } 992 993 if (s->internal->shutdown & SSL_SENT_SHUTDOWN) { 994 s->internal->rwstate = SSL_NOTHING; 995 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 996 return (-1); 997 } 998 return ssl3_write(s, buf, num); 999} 1000 1001int 1002SSL_shutdown(SSL *s) 1003{ 1004 /* 1005 * Note that this function behaves differently from what one might 1006 * expect. Return values are 0 for no success (yet), 1007 * 1 for success; but calling it once is usually not enough, 1008 * even if blocking I/O is used (see ssl3_shutdown). 1009 */ 1010 1011 if (s->internal->handshake_func == NULL) { 1012 SSLerror(s, SSL_R_UNINITIALIZED); 1013 return (-1); 1014 } 1015 1016 if (s != NULL && !SSL_in_init(s)) 1017 return (s->method->internal->ssl_shutdown(s)); 1018 1019 return (1); 1020} 1021 1022int 1023SSL_renegotiate(SSL *s) 1024{ 1025 if (s->internal->renegotiate == 0) 1026 s->internal->renegotiate = 1; 1027 1028 s->internal->new_session = 1; 1029 1030 return (s->method->internal->ssl_renegotiate(s)); 1031} 1032 1033int 1034SSL_renegotiate_abbreviated(SSL *s) 1035{ 1036 if (s->internal->renegotiate == 0) 1037 s->internal->renegotiate = 1; 1038 1039 s->internal->new_session = 0; 1040 1041 return (s->method->internal->ssl_renegotiate(s)); 1042} 1043 1044int 1045SSL_renegotiate_pending(SSL *s) 1046{ 1047 /* 1048 * Becomes true when negotiation is requested; 1049 * false again once a handshake has finished. 1050 */ 1051 return (s->internal->renegotiate != 0); 1052} 1053 1054long 1055SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1056{ 1057 long l; 1058 1059 switch (cmd) { 1060 case SSL_CTRL_GET_READ_AHEAD: 1061 return (s->internal->read_ahead); 1062 case SSL_CTRL_SET_READ_AHEAD: 1063 l = s->internal->read_ahead; 1064 s->internal->read_ahead = larg; 1065 return (l); 1066 1067 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1068 s->internal->msg_callback_arg = parg; 1069 return (1); 1070 1071 case SSL_CTRL_OPTIONS: 1072 return (s->internal->options|=larg); 1073 case SSL_CTRL_CLEAR_OPTIONS: 1074 return (s->internal->options&=~larg); 1075 case SSL_CTRL_MODE: 1076 return (s->internal->mode|=larg); 1077 case SSL_CTRL_CLEAR_MODE: 1078 return (s->internal->mode &=~larg); 1079 case SSL_CTRL_GET_MAX_CERT_LIST: 1080 return (s->internal->max_cert_list); 1081 case SSL_CTRL_SET_MAX_CERT_LIST: 1082 l = s->internal->max_cert_list; 1083 s->internal->max_cert_list = larg; 1084 return (l); 1085 case SSL_CTRL_SET_MTU: 1086#ifndef OPENSSL_NO_DTLS1 1087 if (larg < (long)dtls1_min_mtu()) 1088 return (0); 1089#endif 1090 if (SSL_IS_DTLS(s)) { 1091 D1I(s)->mtu = larg; 1092 return (larg); 1093 } 1094 return (0); 1095 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1096 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1097 return (0); 1098 s->max_send_fragment = larg; 1099 return (1); 1100 case SSL_CTRL_GET_RI_SUPPORT: 1101 if (s->s3) 1102 return (S3I(s)->send_connection_binding); 1103 else return (0); 1104 default: 1105 if (SSL_IS_DTLS(s)) 1106 return dtls1_ctrl(s, cmd, larg, parg); 1107 return ssl3_ctrl(s, cmd, larg, parg); 1108 } 1109} 1110 1111long 1112SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1113{ 1114 switch (cmd) { 1115 case SSL_CTRL_SET_MSG_CALLBACK: 1116 s->internal->msg_callback = (void (*)(int write_p, int version, 1117 int content_type, const void *buf, size_t len, 1118 SSL *ssl, void *arg))(fp); 1119 return (1); 1120 1121 default: 1122 return (ssl3_callback_ctrl(s, cmd, fp)); 1123 } 1124} 1125 1126struct lhash_st_SSL_SESSION * 1127SSL_CTX_sessions(SSL_CTX *ctx) 1128{ 1129 return (ctx->internal->sessions); 1130} 1131 1132long 1133SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1134{ 1135 long l; 1136 1137 switch (cmd) { 1138 case SSL_CTRL_GET_READ_AHEAD: 1139 return (ctx->internal->read_ahead); 1140 case SSL_CTRL_SET_READ_AHEAD: 1141 l = ctx->internal->read_ahead; 1142 ctx->internal->read_ahead = larg; 1143 return (l); 1144 1145 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1146 ctx->internal->msg_callback_arg = parg; 1147 return (1); 1148 1149 case SSL_CTRL_GET_MAX_CERT_LIST: 1150 return (ctx->internal->max_cert_list); 1151 case SSL_CTRL_SET_MAX_CERT_LIST: 1152 l = ctx->internal->max_cert_list; 1153 ctx->internal->max_cert_list = larg; 1154 return (l); 1155 1156 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1157 l = ctx->internal->session_cache_size; 1158 ctx->internal->session_cache_size = larg; 1159 return (l); 1160 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1161 return (ctx->internal->session_cache_size); 1162 case SSL_CTRL_SET_SESS_CACHE_MODE: 1163 l = ctx->internal->session_cache_mode; 1164 ctx->internal->session_cache_mode = larg; 1165 return (l); 1166 case SSL_CTRL_GET_SESS_CACHE_MODE: 1167 return (ctx->internal->session_cache_mode); 1168 1169 case SSL_CTRL_SESS_NUMBER: 1170 return (lh_SSL_SESSION_num_items(ctx->internal->sessions)); 1171 case SSL_CTRL_SESS_CONNECT: 1172 return (ctx->internal->stats.sess_connect); 1173 case SSL_CTRL_SESS_CONNECT_GOOD: 1174 return (ctx->internal->stats.sess_connect_good); 1175 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1176 return (ctx->internal->stats.sess_connect_renegotiate); 1177 case SSL_CTRL_SESS_ACCEPT: 1178 return (ctx->internal->stats.sess_accept); 1179 case SSL_CTRL_SESS_ACCEPT_GOOD: 1180 return (ctx->internal->stats.sess_accept_good); 1181 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1182 return (ctx->internal->stats.sess_accept_renegotiate); 1183 case SSL_CTRL_SESS_HIT: 1184 return (ctx->internal->stats.sess_hit); 1185 case SSL_CTRL_SESS_CB_HIT: 1186 return (ctx->internal->stats.sess_cb_hit); 1187 case SSL_CTRL_SESS_MISSES: 1188 return (ctx->internal->stats.sess_miss); 1189 case SSL_CTRL_SESS_TIMEOUTS: 1190 return (ctx->internal->stats.sess_timeout); 1191 case SSL_CTRL_SESS_CACHE_FULL: 1192 return (ctx->internal->stats.sess_cache_full); 1193 case SSL_CTRL_OPTIONS: 1194 return (ctx->internal->options|=larg); 1195 case SSL_CTRL_CLEAR_OPTIONS: 1196 return (ctx->internal->options&=~larg); 1197 case SSL_CTRL_MODE: 1198 return (ctx->internal->mode|=larg); 1199 case SSL_CTRL_CLEAR_MODE: 1200 return (ctx->internal->mode&=~larg); 1201 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1202 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1203 return (0); 1204 ctx->internal->max_send_fragment = larg; 1205 return (1); 1206 default: 1207 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1208 } 1209} 1210 1211long 1212SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1213{ 1214 switch (cmd) { 1215 case SSL_CTRL_SET_MSG_CALLBACK: 1216 ctx->internal->msg_callback = (void (*)(int write_p, int version, 1217 int content_type, const void *buf, size_t len, SSL *ssl, 1218 void *arg))(fp); 1219 return (1); 1220 1221 default: 1222 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1223 } 1224} 1225 1226int 1227ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1228{ 1229 long l; 1230 1231 l = a->id - b->id; 1232 if (l == 0L) 1233 return (0); 1234 else 1235 return ((l > 0) ? 1:-1); 1236} 1237 1238int 1239ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1240 const SSL_CIPHER * const *bp) 1241{ 1242 long l; 1243 1244 l = (*ap)->id - (*bp)->id; 1245 if (l == 0L) 1246 return (0); 1247 else 1248 return ((l > 0) ? 1:-1); 1249} 1250 1251/* 1252 * Return a STACK of the ciphers available for the SSL and in order of 1253 * preference. 1254 */ 1255STACK_OF(SSL_CIPHER) * 1256SSL_get_ciphers(const SSL *s) 1257{ 1258 if (s != NULL) { 1259 if (s->cipher_list != NULL) { 1260 return (s->cipher_list); 1261 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { 1262 return (s->ctx->cipher_list); 1263 } 1264 } 1265 return (NULL); 1266} 1267 1268STACK_OF(SSL_CIPHER) * 1269SSL_get_client_ciphers(const SSL *s) 1270{ 1271 if (s == NULL || s->session == NULL || !s->server) 1272 return NULL; 1273 return s->session->ciphers; 1274} 1275 1276STACK_OF(SSL_CIPHER) * 1277SSL_get1_supported_ciphers(SSL *s) 1278{ 1279 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers; 1280 const SSL_CIPHER *cipher; 1281 uint16_t min_vers, max_vers; 1282 int i; 1283 1284 if (s == NULL) 1285 return NULL; 1286 if (!ssl_supported_version_range(s, &min_vers, &max_vers)) 1287 return NULL; 1288 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1289 return NULL; 1290 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL) 1291 return NULL; 1292 1293 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1294 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL) 1295 goto err; 1296 if (!ssl_cipher_is_permitted(cipher, min_vers, max_vers)) 1297 continue; 1298 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher)) 1299 goto err; 1300 } 1301 1302 if (sk_SSL_CIPHER_num(supported_ciphers) > 0) 1303 return supported_ciphers; 1304 1305 err: 1306 sk_SSL_CIPHER_free(supported_ciphers); 1307 return NULL; 1308} 1309 1310/* 1311 * Return a STACK of the ciphers available for the SSL and in order of 1312 * algorithm id. 1313 */ 1314STACK_OF(SSL_CIPHER) * 1315ssl_get_ciphers_by_id(SSL *s) 1316{ 1317 if (s != NULL) { 1318 if (s->internal->cipher_list_by_id != NULL) { 1319 return (s->internal->cipher_list_by_id); 1320 } else if ((s->ctx != NULL) && 1321 (s->ctx->internal->cipher_list_by_id != NULL)) { 1322 return (s->ctx->internal->cipher_list_by_id); 1323 } 1324 } 1325 return (NULL); 1326} 1327 1328/* See if we have any ECC cipher suites. */ 1329int 1330ssl_has_ecc_ciphers(SSL *s) 1331{ 1332 STACK_OF(SSL_CIPHER) *ciphers; 1333 unsigned long alg_k, alg_a; 1334 SSL_CIPHER *cipher; 1335 int i; 1336 1337 if (s->version == DTLS1_VERSION) 1338 return 0; 1339 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1340 return 0; 1341 1342 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1343 cipher = sk_SSL_CIPHER_value(ciphers, i); 1344 1345 alg_k = cipher->algorithm_mkey; 1346 alg_a = cipher->algorithm_auth; 1347 1348 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1349 return 1; 1350 } 1351 1352 return 0; 1353} 1354 1355/* The old interface to get the same thing as SSL_get_ciphers(). */ 1356const char * 1357SSL_get_cipher_list(const SSL *s, int n) 1358{ 1359 SSL_CIPHER *c; 1360 STACK_OF(SSL_CIPHER) *sk; 1361 1362 if (s == NULL) 1363 return (NULL); 1364 sk = SSL_get_ciphers(s); 1365 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1366 return (NULL); 1367 c = sk_SSL_CIPHER_value(sk, n); 1368 if (c == NULL) 1369 return (NULL); 1370 return (c->name); 1371} 1372 1373STACK_OF(SSL_CIPHER) * 1374SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1375{ 1376 return ctx->cipher_list; 1377} 1378 1379/* Specify the ciphers to be used by default by the SSL_CTX. */ 1380int 1381SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1382{ 1383 STACK_OF(SSL_CIPHER) *sk; 1384 1385 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1386 &ctx->internal->cipher_list_by_id, str); 1387 /* 1388 * ssl_create_cipher_list may return an empty stack if it 1389 * was unable to find a cipher matching the given rule string 1390 * (for example if the rule string specifies a cipher which 1391 * has been disabled). This is not an error as far as 1392 * ssl_create_cipher_list is concerned, and hence 1393 * ctx->cipher_list and ctx->internal->cipher_list_by_id has been 1394 * updated. 1395 */ 1396 if (sk == NULL) 1397 return (0); 1398 else if (sk_SSL_CIPHER_num(sk) == 0) { 1399 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1400 return (0); 1401 } 1402 return (1); 1403} 1404 1405/* Specify the ciphers to be used by the SSL. */ 1406int 1407SSL_set_cipher_list(SSL *s, const char *str) 1408{ 1409 STACK_OF(SSL_CIPHER) *sk; 1410 1411 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1412 &s->internal->cipher_list_by_id, str); 1413 /* see comment in SSL_CTX_set_cipher_list */ 1414 if (sk == NULL) 1415 return (0); 1416 else if (sk_SSL_CIPHER_num(sk) == 0) { 1417 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1418 return (0); 1419 } 1420 return (1); 1421} 1422 1423/* works well for SSLv2, not so good for SSLv3 */ 1424char * 1425SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1426{ 1427 char *end; 1428 STACK_OF(SSL_CIPHER) *sk; 1429 SSL_CIPHER *c; 1430 size_t curlen = 0; 1431 int i; 1432 1433 if (s->session == NULL || s->session->ciphers == NULL || len < 2) 1434 return (NULL); 1435 1436 sk = s->session->ciphers; 1437 if (sk_SSL_CIPHER_num(sk) == 0) 1438 return (NULL); 1439 1440 buf[0] = '\0'; 1441 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { 1442 c = sk_SSL_CIPHER_value(sk, i); 1443 end = buf + curlen; 1444 if (strlcat(buf, c->name, len) >= len || 1445 (curlen = strlcat(buf, ":", len)) >= len) { 1446 /* remove truncated cipher from list */ 1447 *end = '\0'; 1448 break; 1449 } 1450 } 1451 /* remove trailing colon */ 1452 if ((end = strrchr(buf, ':')) != NULL) 1453 *end = '\0'; 1454 return (buf); 1455} 1456 1457/* 1458 * Return a servername extension value if provided in Client Hello, or NULL. 1459 * So far, only host_name types are defined (RFC 3546). 1460 */ 1461const char * 1462SSL_get_servername(const SSL *s, const int type) 1463{ 1464 if (type != TLSEXT_NAMETYPE_host_name) 1465 return (NULL); 1466 1467 return (s->session && !s->tlsext_hostname ? 1468 s->session->tlsext_hostname : 1469 s->tlsext_hostname); 1470} 1471 1472int 1473SSL_get_servername_type(const SSL *s) 1474{ 1475 if (s->session && 1476 (!s->tlsext_hostname ? 1477 s->session->tlsext_hostname : s->tlsext_hostname)) 1478 return (TLSEXT_NAMETYPE_host_name); 1479 return (-1); 1480} 1481 1482/* 1483 * SSL_select_next_proto implements standard protocol selection. It is 1484 * expected that this function is called from the callback set by 1485 * SSL_CTX_set_alpn_select_cb. 1486 * 1487 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1488 * strings. The length byte itself is not included in the length. A byte 1489 * string of length 0 is invalid. No byte string may be truncated. 1490 * 1491 * It returns either: 1492 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1493 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1494 */ 1495int 1496SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1497 const unsigned char *server, unsigned int server_len, 1498 const unsigned char *client, unsigned int client_len) 1499{ 1500 unsigned int i, j; 1501 const unsigned char *result; 1502 int status = OPENSSL_NPN_UNSUPPORTED; 1503 1504 /* 1505 * For each protocol in server preference order, 1506 * see if we support it. 1507 */ 1508 for (i = 0; i < server_len; ) { 1509 for (j = 0; j < client_len; ) { 1510 if (server[i] == client[j] && 1511 memcmp(&server[i + 1], 1512 &client[j + 1], server[i]) == 0) { 1513 /* We found a match */ 1514 result = &server[i]; 1515 status = OPENSSL_NPN_NEGOTIATED; 1516 goto found; 1517 } 1518 j += client[j]; 1519 j++; 1520 } 1521 i += server[i]; 1522 i++; 1523 } 1524 1525 /* There's no overlap between our protocols and the server's list. */ 1526 result = client; 1527 status = OPENSSL_NPN_NO_OVERLAP; 1528 1529found: 1530 *out = (unsigned char *) result + 1; 1531 *outlen = result[0]; 1532 return (status); 1533} 1534 1535/* SSL_get0_next_proto_negotiated is deprecated. */ 1536void 1537SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1538 unsigned int *len) 1539{ 1540 *data = NULL; 1541 *len = 0; 1542} 1543 1544/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1545void 1546SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1547 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1548{ 1549} 1550 1551/* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1552void 1553SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1554 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1555 unsigned int inlen, void *arg), void *arg) 1556{ 1557} 1558 1559/* 1560 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1561 * protocols, which must be in wire-format (i.e. a series of non-empty, 1562 * 8-bit length-prefixed strings). Returns 0 on success. 1563 */ 1564int 1565SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1566 unsigned int protos_len) 1567{ 1568 int failed = 1; 1569 1570 if (protos == NULL || protos_len == 0) 1571 goto err; 1572 1573 free(ctx->internal->alpn_client_proto_list); 1574 ctx->internal->alpn_client_proto_list = NULL; 1575 ctx->internal->alpn_client_proto_list_len = 0; 1576 1577 if ((ctx->internal->alpn_client_proto_list = malloc(protos_len)) 1578 == NULL) 1579 goto err; 1580 ctx->internal->alpn_client_proto_list_len = protos_len; 1581 1582 memcpy(ctx->internal->alpn_client_proto_list, protos, protos_len); 1583 1584 failed = 0; 1585 1586 err: 1587 /* NOTE: Return values are the reverse of what you expect. */ 1588 return (failed); 1589} 1590 1591/* 1592 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1593 * protocols, which must be in wire-format (i.e. a series of non-empty, 1594 * 8-bit length-prefixed strings). Returns 0 on success. 1595 */ 1596int 1597SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1598 unsigned int protos_len) 1599{ 1600 int failed = 1; 1601 1602 if (protos == NULL || protos_len == 0) 1603 goto err; 1604 1605 free(ssl->internal->alpn_client_proto_list); 1606 ssl->internal->alpn_client_proto_list = NULL; 1607 ssl->internal->alpn_client_proto_list_len = 0; 1608 1609 if ((ssl->internal->alpn_client_proto_list = malloc(protos_len)) 1610 == NULL) 1611 goto err; 1612 ssl->internal->alpn_client_proto_list_len = protos_len; 1613 1614 memcpy(ssl->internal->alpn_client_proto_list, protos, protos_len); 1615 1616 failed = 0; 1617 1618 err: 1619 /* NOTE: Return values are the reverse of what you expect. */ 1620 return (failed); 1621} 1622 1623/* 1624 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1625 * ClientHello processing in order to select an ALPN protocol from the 1626 * client's list of offered protocols. 1627 */ 1628void 1629SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1630 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1631 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1632{ 1633 ctx->internal->alpn_select_cb = cb; 1634 ctx->internal->alpn_select_cb_arg = arg; 1635} 1636 1637/* 1638 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1639 * it sets data to point to len bytes of protocol name (not including the 1640 * leading length-prefix byte). If the server didn't respond with* a negotiated 1641 * protocol then len will be zero. 1642 */ 1643void 1644SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1645 unsigned int *len) 1646{ 1647 *data = NULL; 1648 *len = 0; 1649 1650 *data = ssl->s3->internal->alpn_selected; 1651 *len = ssl->s3->internal->alpn_selected_len; 1652} 1653 1654int 1655SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1656 const char *label, size_t llen, const unsigned char *p, size_t plen, 1657 int use_context) 1658{ 1659 return (tls1_export_keying_material(s, out, olen, 1660 label, llen, p, plen, use_context)); 1661} 1662 1663static unsigned long 1664ssl_session_hash(const SSL_SESSION *a) 1665{ 1666 unsigned long l; 1667 1668 l = (unsigned long) 1669 ((unsigned int) a->session_id[0] )| 1670 ((unsigned int) a->session_id[1]<< 8L)| 1671 ((unsigned long)a->session_id[2]<<16L)| 1672 ((unsigned long)a->session_id[3]<<24L); 1673 return (l); 1674} 1675 1676/* 1677 * NB: If this function (or indeed the hash function which uses a sort of 1678 * coarser function than this one) is changed, ensure 1679 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1680 * able to construct an SSL_SESSION that will collide with any existing session 1681 * with a matching session ID. 1682 */ 1683static int 1684ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 1685{ 1686 if (a->ssl_version != b->ssl_version) 1687 return (1); 1688 if (a->session_id_length != b->session_id_length) 1689 return (1); 1690 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 1691 return (1); 1692 return (0); 1693} 1694 1695/* 1696 * These wrapper functions should remain rather than redeclaring 1697 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1698 * variable. The reason is that the functions aren't static, they're exposed via 1699 * ssl.h. 1700 */ 1701static unsigned long 1702ssl_session_LHASH_HASH(const void *arg) 1703{ 1704 const SSL_SESSION *a = arg; 1705 1706 return ssl_session_hash(a); 1707} 1708 1709static int 1710ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 1711{ 1712 const SSL_SESSION *a = arg1; 1713 const SSL_SESSION *b = arg2; 1714 1715 return ssl_session_cmp(a, b); 1716} 1717 1718SSL_CTX * 1719SSL_CTX_new(const SSL_METHOD *meth) 1720{ 1721 SSL_CTX *ret; 1722 1723 if (!OPENSSL_init_ssl(0, NULL)) { 1724 SSLerrorx(SSL_R_LIBRARY_BUG); 1725 return (NULL); 1726 } 1727 1728 if (meth == NULL) { 1729 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 1730 return (NULL); 1731 } 1732 1733 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 1734 SSLerrorx(ERR_R_MALLOC_FAILURE); 1735 return (NULL); 1736 } 1737 if ((ret->internal = calloc(1, sizeof(*ret->internal))) == NULL) { 1738 free(ret); 1739 SSLerrorx(ERR_R_MALLOC_FAILURE); 1740 return (NULL); 1741 } 1742 1743 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 1744 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1745 goto err; 1746 } 1747 1748 ret->method = meth; 1749 ret->internal->min_version = meth->internal->min_version; 1750 ret->internal->max_version = meth->internal->max_version; 1751 ret->internal->mode = SSL_MODE_AUTO_RETRY; 1752 1753 ret->cert_store = NULL; 1754 ret->internal->session_cache_mode = SSL_SESS_CACHE_SERVER; 1755 ret->internal->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1756 ret->internal->session_cache_head = NULL; 1757 ret->internal->session_cache_tail = NULL; 1758 1759 /* We take the system default */ 1760 ret->session_timeout = ssl_get_default_timeout(); 1761 1762 ret->internal->new_session_cb = 0; 1763 ret->internal->remove_session_cb = 0; 1764 ret->internal->get_session_cb = 0; 1765 ret->internal->generate_session_id = 0; 1766 1767 memset((char *)&ret->internal->stats, 0, sizeof(ret->internal->stats)); 1768 1769 ret->references = 1; 1770 ret->internal->quiet_shutdown = 0; 1771 1772 ret->internal->info_callback = NULL; 1773 1774 ret->internal->app_verify_callback = 0; 1775 ret->internal->app_verify_arg = NULL; 1776 1777 ret->internal->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 1778 ret->internal->read_ahead = 0; 1779 ret->internal->msg_callback = 0; 1780 ret->internal->msg_callback_arg = NULL; 1781 ret->verify_mode = SSL_VERIFY_NONE; 1782 ret->sid_ctx_length = 0; 1783 ret->internal->default_verify_callback = NULL; 1784 1785 if ((ret->internal->cert = ssl_cert_new()) == NULL) 1786 goto err; 1787 1788 ret->default_passwd_callback = 0; 1789 ret->default_passwd_callback_userdata = NULL; 1790 ret->internal->client_cert_cb = 0; 1791 ret->internal->app_gen_cookie_cb = 0; 1792 ret->internal->app_verify_cookie_cb = 0; 1793 1794 ret->internal->sessions = lh_SSL_SESSION_new(); 1795 if (ret->internal->sessions == NULL) 1796 goto err; 1797 ret->cert_store = X509_STORE_new(); 1798 if (ret->cert_store == NULL) 1799 goto err; 1800 1801 ssl_create_cipher_list(ret->method, &ret->cipher_list, 1802 &ret->internal->cipher_list_by_id, SSL_DEFAULT_CIPHER_LIST); 1803 if (ret->cipher_list == NULL || 1804 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 1805 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 1806 goto err2; 1807 } 1808 1809 ret->param = X509_VERIFY_PARAM_new(); 1810 if (!ret->param) 1811 goto err; 1812 1813 if ((ret->internal->client_CA = sk_X509_NAME_new_null()) == NULL) 1814 goto err; 1815 1816 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->internal->ex_data); 1817 1818 ret->extra_certs = NULL; 1819 1820 ret->internal->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 1821 1822 ret->internal->tlsext_servername_callback = 0; 1823 ret->internal->tlsext_servername_arg = NULL; 1824 1825 /* Setup RFC4507 ticket keys */ 1826 arc4random_buf(ret->internal->tlsext_tick_key_name, 16); 1827 arc4random_buf(ret->internal->tlsext_tick_hmac_key, 16); 1828 arc4random_buf(ret->internal->tlsext_tick_aes_key, 16); 1829 1830 ret->internal->tlsext_status_cb = 0; 1831 ret->internal->tlsext_status_arg = NULL; 1832 1833#ifndef OPENSSL_NO_ENGINE 1834 ret->internal->client_cert_engine = NULL; 1835#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1836#define eng_strx(x) #x 1837#define eng_str(x) eng_strx(x) 1838 /* Use specific client engine automatically... ignore errors */ 1839 { 1840 ENGINE *eng; 1841 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1842 if (!eng) { 1843 ERR_clear_error(); 1844 ENGINE_load_builtin_engines(); 1845 eng = ENGINE_by_id(eng_str( 1846 OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1847 } 1848 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1849 ERR_clear_error(); 1850 } 1851#endif 1852#endif 1853 /* 1854 * Default is to connect to non-RI servers. When RI is more widely 1855 * deployed might change this. 1856 */ 1857 ret->internal->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1858 1859 return (ret); 1860err: 1861 SSLerrorx(ERR_R_MALLOC_FAILURE); 1862err2: 1863 SSL_CTX_free(ret); 1864 return (NULL); 1865} 1866 1867void 1868SSL_CTX_free(SSL_CTX *ctx) 1869{ 1870 int i; 1871 1872 if (ctx == NULL) 1873 return; 1874 1875 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 1876 if (i > 0) 1877 return; 1878 1879 X509_VERIFY_PARAM_free(ctx->param); 1880 1881 /* 1882 * Free internal session cache. However: the remove_cb() may reference 1883 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1884 * after the sessions were flushed. 1885 * As the ex_data handling routines might also touch the session cache, 1886 * the most secure solution seems to be: empty (flush) the cache, then 1887 * free ex_data, then finally free the cache. 1888 * (See ticket [openssl.org #212].) 1889 */ 1890 if (ctx->internal->sessions != NULL) 1891 SSL_CTX_flush_sessions(ctx, 0); 1892 1893 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->internal->ex_data); 1894 1895 lh_SSL_SESSION_free(ctx->internal->sessions); 1896 1897 X509_STORE_free(ctx->cert_store); 1898 sk_SSL_CIPHER_free(ctx->cipher_list); 1899 sk_SSL_CIPHER_free(ctx->internal->cipher_list_by_id); 1900 ssl_cert_free(ctx->internal->cert); 1901 sk_X509_NAME_pop_free(ctx->internal->client_CA, X509_NAME_free); 1902 sk_X509_pop_free(ctx->extra_certs, X509_free); 1903 1904#ifndef OPENSSL_NO_SRTP 1905 if (ctx->internal->srtp_profiles) 1906 sk_SRTP_PROTECTION_PROFILE_free(ctx->internal->srtp_profiles); 1907#endif 1908 1909#ifndef OPENSSL_NO_ENGINE 1910 ENGINE_finish(ctx->internal->client_cert_engine); 1911#endif 1912 1913 free(ctx->internal->tlsext_ecpointformatlist); 1914 free(ctx->internal->tlsext_supportedgroups); 1915 1916 free(ctx->internal->alpn_client_proto_list); 1917 1918 free(ctx->internal); 1919 free(ctx); 1920} 1921 1922int 1923SSL_CTX_up_ref(SSL_CTX *ctx) 1924{ 1925 int refs = CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 1926 return ((refs > 1) ? 1 : 0); 1927} 1928 1929pem_password_cb * 1930SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 1931{ 1932 return (ctx->default_passwd_callback); 1933} 1934 1935void 1936SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1937{ 1938 ctx->default_passwd_callback = cb; 1939} 1940 1941void * 1942SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 1943{ 1944 return ctx->default_passwd_callback_userdata; 1945} 1946 1947void 1948SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 1949{ 1950 ctx->default_passwd_callback_userdata = u; 1951} 1952 1953void 1954SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, 1955 int (*cb)(X509_STORE_CTX *, void *), void *arg) 1956{ 1957 ctx->internal->app_verify_callback = cb; 1958 ctx->internal->app_verify_arg = arg; 1959} 1960 1961void 1962SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 1963{ 1964 ctx->verify_mode = mode; 1965 ctx->internal->default_verify_callback = cb; 1966} 1967 1968void 1969SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 1970{ 1971 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1972} 1973 1974static int 1975ssl_cert_can_sign(X509 *x) 1976{ 1977 /* This call populates extension flags (ex_flags). */ 1978 X509_check_purpose(x, -1, 0); 1979 1980 /* Key usage, if present, must allow signing. */ 1981 return ((x->ex_flags & EXFLAG_KUSAGE) == 0 || 1982 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)); 1983} 1984 1985void 1986ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) 1987{ 1988 unsigned long mask_a, mask_k; 1989 CERT_PKEY *cpk; 1990 1991 if (c == NULL) 1992 return; 1993 1994 mask_a = SSL_aNULL | SSL_aTLS1_3; 1995 mask_k = SSL_kECDHE | SSL_kTLS1_3; 1996 1997 if (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto != 0) 1998 mask_k |= SSL_kDHE; 1999 2000 cpk = &(c->pkeys[SSL_PKEY_ECC]); 2001 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2002 if (ssl_cert_can_sign(cpk->x509)) 2003 mask_a |= SSL_aECDSA; 2004 } 2005 2006 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 2007 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2008 mask_k |= SSL_kGOST; 2009 mask_a |= SSL_aGOST01; 2010 } 2011 2012 cpk = &(c->pkeys[SSL_PKEY_RSA]); 2013 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2014 mask_a |= SSL_aRSA; 2015 mask_k |= SSL_kRSA; 2016 } 2017 2018 c->mask_k = mask_k; 2019 c->mask_a = mask_a; 2020 c->valid = 1; 2021} 2022 2023/* See if this handshake is using an ECC cipher suite. */ 2024int 2025ssl_using_ecc_cipher(SSL *s) 2026{ 2027 unsigned long alg_a, alg_k; 2028 2029 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 2030 alg_k = S3I(s)->hs.new_cipher->algorithm_mkey; 2031 2032 return SSI(s)->tlsext_ecpointformatlist != NULL && 2033 SSI(s)->tlsext_ecpointformatlist_length > 0 && 2034 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 2035} 2036 2037int 2038ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) 2039{ 2040 const SSL_CIPHER *cs = S3I(s)->hs.new_cipher; 2041 unsigned long alg_a; 2042 2043 alg_a = cs->algorithm_auth; 2044 2045 if (alg_a & SSL_aECDSA) { 2046 /* This call populates extension flags (ex_flags). */ 2047 X509_check_purpose(x, -1, 0); 2048 2049 /* Key usage, if present, must allow signing. */ 2050 if ((x->ex_flags & EXFLAG_KUSAGE) && 2051 ((x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) == 0)) { 2052 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2053 return (0); 2054 } 2055 } 2056 2057 return (1); 2058} 2059 2060CERT_PKEY * 2061ssl_get_server_send_pkey(const SSL *s) 2062{ 2063 unsigned long alg_a; 2064 CERT *c; 2065 int i; 2066 2067 c = s->cert; 2068 ssl_set_cert_masks(c, S3I(s)->hs.new_cipher); 2069 2070 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 2071 2072 if (alg_a & SSL_aECDSA) { 2073 i = SSL_PKEY_ECC; 2074 } else if (alg_a & SSL_aRSA) { 2075 i = SSL_PKEY_RSA; 2076 } else if (alg_a & SSL_aGOST01) { 2077 i = SSL_PKEY_GOST01; 2078 } else { /* if (alg_a & SSL_aNULL) */ 2079 SSLerror(s, ERR_R_INTERNAL_ERROR); 2080 return (NULL); 2081 } 2082 2083 return (c->pkeys + i); 2084} 2085 2086EVP_PKEY * 2087ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2088 const struct ssl_sigalg **sap) 2089{ 2090 const struct ssl_sigalg *sigalg = NULL; 2091 EVP_PKEY *pkey = NULL; 2092 unsigned long alg_a; 2093 CERT *c; 2094 int idx = -1; 2095 2096 alg_a = cipher->algorithm_auth; 2097 c = s->cert; 2098 2099 if (alg_a & SSL_aRSA) { 2100 idx = SSL_PKEY_RSA; 2101 } else if ((alg_a & SSL_aECDSA) && 2102 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2103 idx = SSL_PKEY_ECC; 2104 if (idx == -1) { 2105 SSLerror(s, ERR_R_INTERNAL_ERROR); 2106 return (NULL); 2107 } 2108 2109 pkey = c->pkeys[idx].privatekey; 2110 if ((sigalg = ssl_sigalg_select(s, pkey)) == NULL) { 2111 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2112 return (NULL); 2113 } 2114 *pmd = sigalg->md(); 2115 *sap = sigalg; 2116 2117 return (pkey); 2118} 2119 2120DH * 2121ssl_get_auto_dh(SSL *s) 2122{ 2123 CERT_PKEY *cpk; 2124 int keylen; 2125 DH *dhp; 2126 2127 if (s->cert->dh_tmp_auto == 2) { 2128 keylen = 1024; 2129 } else if (S3I(s)->hs.new_cipher->algorithm_auth & SSL_aNULL) { 2130 keylen = 1024; 2131 if (S3I(s)->hs.new_cipher->strength_bits == 256) 2132 keylen = 3072; 2133 } else { 2134 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2135 return (NULL); 2136 if (cpk->privatekey == NULL || cpk->privatekey->pkey.dh == NULL) 2137 return (NULL); 2138 keylen = EVP_PKEY_bits(cpk->privatekey); 2139 } 2140 2141 if ((dhp = DH_new()) == NULL) 2142 return (NULL); 2143 2144 dhp->g = BN_new(); 2145 if (dhp->g != NULL) 2146 BN_set_word(dhp->g, 2); 2147 2148 if (keylen >= 8192) 2149 dhp->p = get_rfc3526_prime_8192(NULL); 2150 else if (keylen >= 4096) 2151 dhp->p = get_rfc3526_prime_4096(NULL); 2152 else if (keylen >= 3072) 2153 dhp->p = get_rfc3526_prime_3072(NULL); 2154 else if (keylen >= 2048) 2155 dhp->p = get_rfc3526_prime_2048(NULL); 2156 else if (keylen >= 1536) 2157 dhp->p = get_rfc3526_prime_1536(NULL); 2158 else 2159 dhp->p = get_rfc2409_prime_1024(NULL); 2160 2161 if (dhp->p == NULL || dhp->g == NULL) { 2162 DH_free(dhp); 2163 return (NULL); 2164 } 2165 return (dhp); 2166} 2167 2168void 2169ssl_update_cache(SSL *s, int mode) 2170{ 2171 int i; 2172 2173 /* 2174 * If the session_id_length is 0, we are not supposed to cache it, 2175 * and it would be rather hard to do anyway :-) 2176 */ 2177 if (s->session->session_id_length == 0) 2178 return; 2179 2180 i = s->session_ctx->internal->session_cache_mode; 2181 if ((i & mode) && (!s->internal->hit) && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2182 || SSL_CTX_add_session(s->session_ctx, s->session)) 2183 && (s->session_ctx->internal->new_session_cb != NULL)) { 2184 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2185 if (!s->session_ctx->internal->new_session_cb(s, s->session)) 2186 SSL_SESSION_free(s->session); 2187 } 2188 2189 /* auto flush every 255 connections */ 2190 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2191 ((i & mode) == mode)) { 2192 if ((((mode & SSL_SESS_CACHE_CLIENT) ? 2193 s->session_ctx->internal->stats.sess_connect_good : 2194 s->session_ctx->internal->stats.sess_accept_good) & 0xff) == 0xff) { 2195 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2196 } 2197 } 2198} 2199 2200const SSL_METHOD * 2201SSL_get_ssl_method(SSL *s) 2202{ 2203 return (s->method); 2204} 2205 2206int 2207SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) 2208{ 2209 int conn = -1; 2210 int ret = 1; 2211 2212 if (s->method != meth) { 2213 if (s->internal->handshake_func != NULL) 2214 conn = (s->internal->handshake_func == s->method->internal->ssl_connect); 2215 2216 if (s->method->internal->version == meth->internal->version) 2217 s->method = meth; 2218 else { 2219 s->method->internal->ssl_free(s); 2220 s->method = meth; 2221 ret = s->method->internal->ssl_new(s); 2222 } 2223 2224 if (conn == 1) 2225 s->internal->handshake_func = meth->internal->ssl_connect; 2226 else if (conn == 0) 2227 s->internal->handshake_func = meth->internal->ssl_accept; 2228 } 2229 return (ret); 2230} 2231 2232int 2233SSL_get_error(const SSL *s, int i) 2234{ 2235 int reason; 2236 unsigned long l; 2237 BIO *bio; 2238 2239 if (i > 0) 2240 return (SSL_ERROR_NONE); 2241 2242 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2243 * etc, where we do encode the error */ 2244 if ((l = ERR_peek_error()) != 0) { 2245 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2246 return (SSL_ERROR_SYSCALL); 2247 else 2248 return (SSL_ERROR_SSL); 2249 } 2250 2251 if ((i < 0) && SSL_want_read(s)) { 2252 bio = SSL_get_rbio(s); 2253 if (BIO_should_read(bio)) { 2254 return (SSL_ERROR_WANT_READ); 2255 } else if (BIO_should_write(bio)) { 2256 /* 2257 * This one doesn't make too much sense... We never 2258 * try to write to the rbio, and an application 2259 * program where rbio and wbio are separate couldn't 2260 * even know what it should wait for. However if we 2261 * ever set s->internal->rwstate incorrectly (so that we have 2262 * SSL_want_read(s) instead of SSL_want_write(s)) 2263 * and rbio and wbio *are* the same, this test works 2264 * around that bug; so it might be safer to keep it. 2265 */ 2266 return (SSL_ERROR_WANT_WRITE); 2267 } else if (BIO_should_io_special(bio)) { 2268 reason = BIO_get_retry_reason(bio); 2269 if (reason == BIO_RR_CONNECT) 2270 return (SSL_ERROR_WANT_CONNECT); 2271 else if (reason == BIO_RR_ACCEPT) 2272 return (SSL_ERROR_WANT_ACCEPT); 2273 else 2274 return (SSL_ERROR_SYSCALL); /* unknown */ 2275 } 2276 } 2277 2278 if ((i < 0) && SSL_want_write(s)) { 2279 bio = SSL_get_wbio(s); 2280 if (BIO_should_write(bio)) { 2281 return (SSL_ERROR_WANT_WRITE); 2282 } else if (BIO_should_read(bio)) { 2283 /* 2284 * See above (SSL_want_read(s) with 2285 * BIO_should_write(bio)) 2286 */ 2287 return (SSL_ERROR_WANT_READ); 2288 } else if (BIO_should_io_special(bio)) { 2289 reason = BIO_get_retry_reason(bio); 2290 if (reason == BIO_RR_CONNECT) 2291 return (SSL_ERROR_WANT_CONNECT); 2292 else if (reason == BIO_RR_ACCEPT) 2293 return (SSL_ERROR_WANT_ACCEPT); 2294 else 2295 return (SSL_ERROR_SYSCALL); 2296 } 2297 } 2298 if ((i < 0) && SSL_want_x509_lookup(s)) { 2299 return (SSL_ERROR_WANT_X509_LOOKUP); 2300 } 2301 2302 if (i == 0) { 2303 if ((s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) && 2304 (S3I(s)->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2305 return (SSL_ERROR_ZERO_RETURN); 2306 } 2307 return (SSL_ERROR_SYSCALL); 2308} 2309 2310int 2311SSL_do_handshake(SSL *s) 2312{ 2313 int ret = 1; 2314 2315 if (s->internal->handshake_func == NULL) { 2316 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2317 return (-1); 2318 } 2319 2320 s->method->internal->ssl_renegotiate_check(s); 2321 2322 if (SSL_in_init(s) || SSL_in_before(s)) { 2323 ret = s->internal->handshake_func(s); 2324 } 2325 return (ret); 2326} 2327 2328/* 2329 * For the next 2 functions, SSL_clear() sets shutdown and so 2330 * one of these calls will reset it 2331 */ 2332void 2333SSL_set_accept_state(SSL *s) 2334{ 2335 s->server = 1; 2336 s->internal->shutdown = 0; 2337 S3I(s)->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2338 s->internal->handshake_func = s->method->internal->ssl_accept; 2339 ssl_clear_cipher_state(s); 2340} 2341 2342void 2343SSL_set_connect_state(SSL *s) 2344{ 2345 s->server = 0; 2346 s->internal->shutdown = 0; 2347 S3I(s)->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2348 s->internal->handshake_func = s->method->internal->ssl_connect; 2349 ssl_clear_cipher_state(s); 2350} 2351 2352int 2353ssl_undefined_function(SSL *s) 2354{ 2355 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2356 return (0); 2357} 2358 2359int 2360ssl_undefined_void_function(void) 2361{ 2362 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2363 return (0); 2364} 2365 2366int 2367ssl_undefined_const_function(const SSL *s) 2368{ 2369 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2370 return (0); 2371} 2372 2373const char * 2374ssl_version_string(int ver) 2375{ 2376 switch (ver) { 2377 case DTLS1_VERSION: 2378 return (SSL_TXT_DTLS1); 2379 case TLS1_VERSION: 2380 return (SSL_TXT_TLSV1); 2381 case TLS1_1_VERSION: 2382 return (SSL_TXT_TLSV1_1); 2383 case TLS1_2_VERSION: 2384 return (SSL_TXT_TLSV1_2); 2385 case TLS1_3_VERSION: 2386 return (SSL_TXT_TLSV1_3); 2387 default: 2388 return ("unknown"); 2389 } 2390} 2391 2392const char * 2393SSL_get_version(const SSL *s) 2394{ 2395 return ssl_version_string(s->version); 2396} 2397 2398SSL * 2399SSL_dup(SSL *s) 2400{ 2401 STACK_OF(X509_NAME) *sk; 2402 X509_NAME *xn; 2403 SSL *ret; 2404 int i; 2405 2406 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2407 goto err; 2408 2409 ret->version = s->version; 2410 ret->internal->type = s->internal->type; 2411 ret->method = s->method; 2412 2413 if (s->session != NULL) { 2414 if (!SSL_copy_session_id(ret, s)) 2415 goto err; 2416 } else { 2417 /* 2418 * No session has been established yet, so we have to expect 2419 * that s->cert or ret->cert will be changed later -- 2420 * they should not both point to the same object, 2421 * and thus we can't use SSL_copy_session_id. 2422 */ 2423 2424 ret->method->internal->ssl_free(ret); 2425 ret->method = s->method; 2426 ret->method->internal->ssl_new(ret); 2427 2428 ssl_cert_free(ret->cert); 2429 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2430 goto err; 2431 2432 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2433 s->sid_ctx_length)) 2434 goto err; 2435 } 2436 2437 ret->internal->options = s->internal->options; 2438 ret->internal->mode = s->internal->mode; 2439 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2440 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2441 ret->internal->msg_callback = s->internal->msg_callback; 2442 ret->internal->msg_callback_arg = s->internal->msg_callback_arg; 2443 SSL_set_verify(ret, SSL_get_verify_mode(s), 2444 SSL_get_verify_callback(s)); 2445 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2446 ret->internal->generate_session_id = s->internal->generate_session_id; 2447 2448 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2449 2450 ret->internal->debug = s->internal->debug; 2451 2452 /* copy app data, a little dangerous perhaps */ 2453 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2454 &ret->internal->ex_data, &s->internal->ex_data)) 2455 goto err; 2456 2457 /* setup rbio, and wbio */ 2458 if (s->rbio != NULL) { 2459 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2460 goto err; 2461 } 2462 if (s->wbio != NULL) { 2463 if (s->wbio != s->rbio) { 2464 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2465 goto err; 2466 } else 2467 ret->wbio = ret->rbio; 2468 } 2469 ret->internal->rwstate = s->internal->rwstate; 2470 ret->internal->in_handshake = s->internal->in_handshake; 2471 ret->internal->handshake_func = s->internal->handshake_func; 2472 ret->server = s->server; 2473 ret->internal->renegotiate = s->internal->renegotiate; 2474 ret->internal->new_session = s->internal->new_session; 2475 ret->internal->quiet_shutdown = s->internal->quiet_shutdown; 2476 ret->internal->shutdown = s->internal->shutdown; 2477 /* SSL_dup does not really work at any state, though */ 2478 S3I(ret)->hs.state = S3I(s)->hs.state; 2479 ret->internal->rstate = s->internal->rstate; 2480 2481 /* 2482 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2483 * ret->init_off 2484 */ 2485 ret->internal->init_num = 0; 2486 2487 ret->internal->hit = s->internal->hit; 2488 2489 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2490 2491 /* dup the cipher_list and cipher_list_by_id stacks */ 2492 if (s->cipher_list != NULL) { 2493 if ((ret->cipher_list = 2494 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2495 goto err; 2496 } 2497 if (s->internal->cipher_list_by_id != NULL) { 2498 if ((ret->internal->cipher_list_by_id = 2499 sk_SSL_CIPHER_dup(s->internal->cipher_list_by_id)) == NULL) 2500 goto err; 2501 } 2502 2503 /* Dup the client_CA list */ 2504 if (s->internal->client_CA != NULL) { 2505 if ((sk = sk_X509_NAME_dup(s->internal->client_CA)) == NULL) goto err; 2506 ret->internal->client_CA = sk; 2507 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2508 xn = sk_X509_NAME_value(sk, i); 2509 if (sk_X509_NAME_set(sk, i, 2510 X509_NAME_dup(xn)) == NULL) { 2511 X509_NAME_free(xn); 2512 goto err; 2513 } 2514 } 2515 } 2516 2517 return ret; 2518 err: 2519 SSL_free(ret); 2520 return NULL; 2521} 2522 2523void 2524ssl_clear_cipher_state(SSL *s) 2525{ 2526 ssl_clear_cipher_read_state(s); 2527 ssl_clear_cipher_write_state(s); 2528} 2529 2530void 2531ssl_clear_cipher_read_state(SSL *s) 2532{ 2533 EVP_CIPHER_CTX_free(s->enc_read_ctx); 2534 s->enc_read_ctx = NULL; 2535 EVP_MD_CTX_free(s->read_hash); 2536 s->read_hash = NULL; 2537 2538 if (s->internal->aead_read_ctx != NULL) { 2539 EVP_AEAD_CTX_cleanup(&s->internal->aead_read_ctx->ctx); 2540 free(s->internal->aead_read_ctx); 2541 s->internal->aead_read_ctx = NULL; 2542 } 2543} 2544 2545void 2546ssl_clear_cipher_write_state(SSL *s) 2547{ 2548 EVP_CIPHER_CTX_free(s->internal->enc_write_ctx); 2549 s->internal->enc_write_ctx = NULL; 2550 EVP_MD_CTX_free(s->internal->write_hash); 2551 s->internal->write_hash = NULL; 2552 2553 if (s->internal->aead_write_ctx != NULL) { 2554 EVP_AEAD_CTX_cleanup(&s->internal->aead_write_ctx->ctx); 2555 free(s->internal->aead_write_ctx); 2556 s->internal->aead_write_ctx = NULL; 2557 } 2558} 2559 2560/* Fix this function so that it takes an optional type parameter */ 2561X509 * 2562SSL_get_certificate(const SSL *s) 2563{ 2564 return (s->cert->key->x509); 2565} 2566 2567/* Fix this function so that it takes an optional type parameter */ 2568EVP_PKEY * 2569SSL_get_privatekey(const SSL *s) 2570{ 2571 return (s->cert->key->privatekey); 2572} 2573 2574const SSL_CIPHER * 2575SSL_get_current_cipher(const SSL *s) 2576{ 2577 if ((s->session != NULL) && (s->session->cipher != NULL)) 2578 return (s->session->cipher); 2579 return (NULL); 2580} 2581const void * 2582SSL_get_current_compression(SSL *s) 2583{ 2584 return (NULL); 2585} 2586 2587const void * 2588SSL_get_current_expansion(SSL *s) 2589{ 2590 return (NULL); 2591} 2592 2593size_t 2594SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 2595{ 2596 size_t len = sizeof(s->s3->client_random); 2597 2598 if (out == NULL) 2599 return len; 2600 2601 if (len > max_out) 2602 len = max_out; 2603 2604 memcpy(out, s->s3->client_random, len); 2605 2606 return len; 2607} 2608 2609size_t 2610SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 2611{ 2612 size_t len = sizeof(s->s3->server_random); 2613 2614 if (out == NULL) 2615 return len; 2616 2617 if (len > max_out) 2618 len = max_out; 2619 2620 memcpy(out, s->s3->server_random, len); 2621 2622 return len; 2623} 2624 2625int 2626ssl_init_wbio_buffer(SSL *s, int push) 2627{ 2628 BIO *bbio; 2629 2630 if (s->bbio == NULL) { 2631 bbio = BIO_new(BIO_f_buffer()); 2632 if (bbio == NULL) 2633 return (0); 2634 s->bbio = bbio; 2635 } else { 2636 bbio = s->bbio; 2637 if (s->bbio == s->wbio) 2638 s->wbio = BIO_pop(s->wbio); 2639 } 2640 (void)BIO_reset(bbio); 2641/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2642 if (!BIO_set_read_buffer_size(bbio, 1)) { 2643 SSLerror(s, ERR_R_BUF_LIB); 2644 return (0); 2645 } 2646 if (push) { 2647 if (s->wbio != bbio) 2648 s->wbio = BIO_push(bbio, s->wbio); 2649 } else { 2650 if (s->wbio == bbio) 2651 s->wbio = BIO_pop(bbio); 2652 } 2653 return (1); 2654} 2655 2656void 2657ssl_free_wbio_buffer(SSL *s) 2658{ 2659 if (s == NULL) 2660 return; 2661 2662 if (s->bbio == NULL) 2663 return; 2664 2665 if (s->bbio == s->wbio) { 2666 /* remove buffering */ 2667 s->wbio = BIO_pop(s->wbio); 2668 } 2669 BIO_free(s->bbio); 2670 s->bbio = NULL; 2671} 2672 2673void 2674SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 2675{ 2676 ctx->internal->quiet_shutdown = mode; 2677} 2678 2679int 2680SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2681{ 2682 return (ctx->internal->quiet_shutdown); 2683} 2684 2685void 2686SSL_set_quiet_shutdown(SSL *s, int mode) 2687{ 2688 s->internal->quiet_shutdown = mode; 2689} 2690 2691int 2692SSL_get_quiet_shutdown(const SSL *s) 2693{ 2694 return (s->internal->quiet_shutdown); 2695} 2696 2697void 2698SSL_set_shutdown(SSL *s, int mode) 2699{ 2700 s->internal->shutdown = mode; 2701} 2702 2703int 2704SSL_get_shutdown(const SSL *s) 2705{ 2706 return (s->internal->shutdown); 2707} 2708 2709int 2710SSL_version(const SSL *s) 2711{ 2712 return (s->version); 2713} 2714 2715SSL_CTX * 2716SSL_get_SSL_CTX(const SSL *ssl) 2717{ 2718 return (ssl->ctx); 2719} 2720 2721SSL_CTX * 2722SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2723{ 2724 if (ssl->ctx == ctx) 2725 return (ssl->ctx); 2726 if (ctx == NULL) 2727 ctx = ssl->initial_ctx; 2728 2729 ssl_cert_free(ssl->cert); 2730 ssl->cert = ssl_cert_dup(ctx->internal->cert); 2731 2732 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 2733 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2734 ssl->ctx = ctx; 2735 return (ssl->ctx); 2736} 2737 2738int 2739SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2740{ 2741 return (X509_STORE_set_default_paths(ctx->cert_store)); 2742} 2743 2744int 2745SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2746 const char *CApath) 2747{ 2748 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 2749} 2750 2751int 2752SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 2753{ 2754 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 2755} 2756 2757void 2758SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 2759{ 2760 ssl->internal->info_callback = cb; 2761} 2762 2763void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 2764{ 2765 return (ssl->internal->info_callback); 2766} 2767 2768int 2769SSL_state(const SSL *ssl) 2770{ 2771 return (S3I(ssl)->hs.state); 2772} 2773 2774void 2775SSL_set_state(SSL *ssl, int state) 2776{ 2777 S3I(ssl)->hs.state = state; 2778} 2779 2780void 2781SSL_set_verify_result(SSL *ssl, long arg) 2782{ 2783 ssl->verify_result = arg; 2784} 2785 2786long 2787SSL_get_verify_result(const SSL *ssl) 2788{ 2789 return (ssl->verify_result); 2790} 2791 2792int 2793SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2794 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2795{ 2796 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2797 new_func, dup_func, free_func)); 2798} 2799 2800int 2801SSL_set_ex_data(SSL *s, int idx, void *arg) 2802{ 2803 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2804} 2805 2806void * 2807SSL_get_ex_data(const SSL *s, int idx) 2808{ 2809 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2810} 2811 2812int 2813SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2814 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2815{ 2816 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2817 new_func, dup_func, free_func)); 2818} 2819 2820int 2821SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 2822{ 2823 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2824} 2825 2826void * 2827SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 2828{ 2829 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2830} 2831 2832int 2833ssl_ok(SSL *s) 2834{ 2835 return (1); 2836} 2837 2838X509_STORE * 2839SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2840{ 2841 return (ctx->cert_store); 2842} 2843 2844void 2845SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 2846{ 2847 X509_STORE_free(ctx->cert_store); 2848 ctx->cert_store = store; 2849} 2850 2851X509 * 2852SSL_CTX_get0_certificate(const SSL_CTX *ctx) 2853{ 2854 if (ctx->internal->cert == NULL) 2855 return NULL; 2856 2857 return ctx->internal->cert->key->x509; 2858} 2859 2860int 2861SSL_want(const SSL *s) 2862{ 2863 return (s->internal->rwstate); 2864} 2865 2866void 2867SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 2868 int keylength)) 2869{ 2870 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2871} 2872 2873void 2874SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 2875 int keylength)) 2876{ 2877 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2878} 2879 2880void 2881SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 2882 int keylength)) 2883{ 2884 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2885} 2886 2887void 2888SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 2889 int keylength)) 2890{ 2891 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2892} 2893 2894void 2895SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 2896 int is_export, int keylength)) 2897{ 2898 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 2899 (void (*)(void))ecdh); 2900} 2901 2902void 2903SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 2904 int keylength)) 2905{ 2906 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2907} 2908 2909 2910void 2911SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 2912 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2913{ 2914 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 2915 (void (*)(void))cb); 2916} 2917 2918void 2919SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 2920 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2921{ 2922 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2923} 2924 2925void 2926SSL_set_debug(SSL *s, int debug) 2927{ 2928 s->internal->debug = debug; 2929} 2930 2931int 2932SSL_cache_hit(SSL *s) 2933{ 2934 return (s->internal->hit); 2935} 2936 2937int 2938SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 2939{ 2940 return ctx->internal->min_version; 2941} 2942 2943int 2944SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 2945{ 2946 return ssl_version_set_min(ctx->method, version, 2947 ctx->internal->max_version, &ctx->internal->min_version); 2948} 2949 2950int 2951SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 2952{ 2953 return ctx->internal->max_version; 2954} 2955 2956int 2957SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 2958{ 2959 return ssl_version_set_max(ctx->method, version, 2960 ctx->internal->min_version, &ctx->internal->max_version); 2961} 2962 2963int 2964SSL_get_min_proto_version(SSL *ssl) 2965{ 2966 return ssl->internal->min_version; 2967} 2968 2969int 2970SSL_set_min_proto_version(SSL *ssl, uint16_t version) 2971{ 2972 return ssl_version_set_min(ssl->method, version, 2973 ssl->internal->max_version, &ssl->internal->min_version); 2974} 2975int 2976SSL_get_max_proto_version(SSL *ssl) 2977{ 2978 return ssl->internal->max_version; 2979} 2980 2981int 2982SSL_set_max_proto_version(SSL *ssl, uint16_t version) 2983{ 2984 return ssl_version_set_max(ssl->method, version, 2985 ssl->internal->min_version, &ssl->internal->max_version); 2986} 2987 2988static int 2989ssl_cipher_id_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 2990{ 2991 SSL_CIPHER const *a = a_; 2992 SSL_CIPHER const *b = b_; 2993 return ssl_cipher_id_cmp(a, b); 2994} 2995 2996SSL_CIPHER * 2997OBJ_bsearch_ssl_cipher_id(SSL_CIPHER *key, SSL_CIPHER const *base, int num) 2998{ 2999 return (SSL_CIPHER *)OBJ_bsearch_(key, base, num, sizeof(SSL_CIPHER), 3000 ssl_cipher_id_cmp_BSEARCH_CMP_FN); 3001} 3002