ssl_lib.c revision 1.254
1/* $OpenBSD: ssl_lib.c,v 1.254 2021/03/29 16:46:09 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->version = s->method->internal->version; 190 s->client_version = s->version; 191 s->internal->rwstate = SSL_NOTHING; 192 s->internal->rstate = SSL_ST_READ_HEADER; 193 194 tls13_ctx_free(s->internal->tls13); 195 s->internal->tls13 = NULL; 196 197 ssl3_release_init_buffer(s); 198 199 ssl_clear_cipher_state(s); 200 201 s->internal->first_packet = 0; 202 203 /* 204 * Check to see if we were changed into a different method, if 205 * so, revert back if we are not doing session-id reuse. 206 */ 207 if (!s->internal->in_handshake && (s->session == NULL) && 208 (s->method != s->ctx->method)) { 209 s->method->internal->ssl_free(s); 210 s->method = s->ctx->method; 211 if (!s->method->internal->ssl_new(s)) 212 return (0); 213 } else 214 s->method->internal->ssl_clear(s); 215 216 return (1); 217} 218 219/* Used to change an SSL_CTXs default SSL method type */ 220int 221SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 222{ 223 STACK_OF(SSL_CIPHER) *ciphers; 224 225 ctx->method = meth; 226 227 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 228 ctx->internal->cipher_list_tls13, SSL_DEFAULT_CIPHER_LIST); 229 if (ciphers == NULL || sk_SSL_CIPHER_num(ciphers) <= 0) { 230 SSLerrorx(SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 231 return (0); 232 } 233 return (1); 234} 235 236SSL * 237SSL_new(SSL_CTX *ctx) 238{ 239 SSL *s; 240 241 if (ctx == NULL) { 242 SSLerrorx(SSL_R_NULL_SSL_CTX); 243 return (NULL); 244 } 245 if (ctx->method == NULL) { 246 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 247 return (NULL); 248 } 249 250 if ((s = calloc(1, sizeof(*s))) == NULL) 251 goto err; 252 if ((s->internal = calloc(1, sizeof(*s->internal))) == NULL) 253 goto err; 254 255 s->internal->min_tls_version = ctx->internal->min_tls_version; 256 s->internal->max_tls_version = ctx->internal->max_tls_version; 257 s->internal->min_proto_version = ctx->internal->min_proto_version; 258 s->internal->max_proto_version = ctx->internal->max_proto_version; 259 260 s->internal->options = ctx->internal->options; 261 s->internal->mode = ctx->internal->mode; 262 s->internal->max_cert_list = ctx->internal->max_cert_list; 263 264 if ((s->cert = ssl_cert_dup(ctx->internal->cert)) == NULL) 265 goto err; 266 267 s->internal->read_ahead = ctx->internal->read_ahead; 268 s->internal->msg_callback = ctx->internal->msg_callback; 269 s->internal->msg_callback_arg = ctx->internal->msg_callback_arg; 270 s->verify_mode = ctx->verify_mode; 271 s->sid_ctx_length = ctx->sid_ctx_length; 272 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 273 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); 274 s->internal->verify_callback = ctx->internal->default_verify_callback; 275 s->internal->generate_session_id = ctx->internal->generate_session_id; 276 277 s->param = X509_VERIFY_PARAM_new(); 278 if (!s->param) 279 goto err; 280 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 281 s->internal->quiet_shutdown = ctx->internal->quiet_shutdown; 282 s->max_send_fragment = ctx->internal->max_send_fragment; 283 284 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 285 s->ctx = ctx; 286 s->internal->tlsext_debug_cb = 0; 287 s->internal->tlsext_debug_arg = NULL; 288 s->internal->tlsext_ticket_expected = 0; 289 s->tlsext_status_type = -1; 290 s->internal->tlsext_status_expected = 0; 291 s->internal->tlsext_ocsp_ids = NULL; 292 s->internal->tlsext_ocsp_exts = NULL; 293 s->internal->tlsext_ocsp_resp = NULL; 294 s->internal->tlsext_ocsp_resp_len = 0; 295 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 296 s->initial_ctx = ctx; 297 298 if (ctx->internal->tlsext_ecpointformatlist != NULL) { 299 s->internal->tlsext_ecpointformatlist = 300 calloc(ctx->internal->tlsext_ecpointformatlist_length, 301 sizeof(ctx->internal->tlsext_ecpointformatlist[0])); 302 if (s->internal->tlsext_ecpointformatlist == NULL) 303 goto err; 304 memcpy(s->internal->tlsext_ecpointformatlist, 305 ctx->internal->tlsext_ecpointformatlist, 306 ctx->internal->tlsext_ecpointformatlist_length * 307 sizeof(ctx->internal->tlsext_ecpointformatlist[0])); 308 s->internal->tlsext_ecpointformatlist_length = 309 ctx->internal->tlsext_ecpointformatlist_length; 310 } 311 if (ctx->internal->tlsext_supportedgroups != NULL) { 312 s->internal->tlsext_supportedgroups = 313 calloc(ctx->internal->tlsext_supportedgroups_length, 314 sizeof(ctx->internal->tlsext_supportedgroups[0])); 315 if (s->internal->tlsext_supportedgroups == NULL) 316 goto err; 317 memcpy(s->internal->tlsext_supportedgroups, 318 ctx->internal->tlsext_supportedgroups, 319 ctx->internal->tlsext_supportedgroups_length * 320 sizeof(ctx->internal->tlsext_supportedgroups[0])); 321 s->internal->tlsext_supportedgroups_length = 322 ctx->internal->tlsext_supportedgroups_length; 323 } 324 325 if (s->ctx->internal->alpn_client_proto_list != NULL) { 326 s->internal->alpn_client_proto_list = 327 malloc(s->ctx->internal->alpn_client_proto_list_len); 328 if (s->internal->alpn_client_proto_list == NULL) 329 goto err; 330 memcpy(s->internal->alpn_client_proto_list, 331 s->ctx->internal->alpn_client_proto_list, 332 s->ctx->internal->alpn_client_proto_list_len); 333 s->internal->alpn_client_proto_list_len = 334 s->ctx->internal->alpn_client_proto_list_len; 335 } 336 337 s->verify_result = X509_V_OK; 338 339 s->method = ctx->method; 340 341 if (!s->method->internal->ssl_new(s)) 342 goto err; 343 344 if ((s->internal->rl = tls12_record_layer_new()) == NULL) 345 goto err; 346 347 s->references = 1; 348 s->server = ctx->method->internal->server; 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 472void 473SSL_set_hostflags(SSL *s, unsigned int flags) 474{ 475 X509_VERIFY_PARAM_set_hostflags(s->param, flags); 476} 477 478const char * 479SSL_get0_peername(SSL *s) 480{ 481 return X509_VERIFY_PARAM_get0_peername(s->param); 482} 483 484X509_VERIFY_PARAM * 485SSL_CTX_get0_param(SSL_CTX *ctx) 486{ 487 return (ctx->param); 488} 489 490int 491SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 492{ 493 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 494} 495 496X509_VERIFY_PARAM * 497SSL_get0_param(SSL *ssl) 498{ 499 return (ssl->param); 500} 501 502int 503SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 504{ 505 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 506} 507 508void 509SSL_free(SSL *s) 510{ 511 int i; 512 513 if (s == NULL) 514 return; 515 516 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 517 if (i > 0) 518 return; 519 520 X509_VERIFY_PARAM_free(s->param); 521 522 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 523 524 if (s->bbio != NULL) { 525 /* If the buffering BIO is in place, pop it off */ 526 if (s->bbio == s->wbio) { 527 s->wbio = BIO_pop(s->wbio); 528 } 529 BIO_free(s->bbio); 530 s->bbio = NULL; 531 } 532 533 if (s->rbio != s->wbio) 534 BIO_free_all(s->rbio); 535 BIO_free_all(s->wbio); 536 537 tls13_ctx_free(s->internal->tls13); 538 539 ssl3_release_init_buffer(s); 540 541 sk_SSL_CIPHER_free(s->cipher_list); 542 sk_SSL_CIPHER_free(s->internal->cipher_list_tls13); 543 544 /* Make the next call work :-) */ 545 if (s->session != NULL) { 546 ssl_clear_bad_session(s); 547 SSL_SESSION_free(s->session); 548 } 549 550 ssl_clear_cipher_state(s); 551 552 ssl_cert_free(s->cert); 553 554 free(s->tlsext_hostname); 555 SSL_CTX_free(s->initial_ctx); 556 557 free(s->internal->tlsext_ecpointformatlist); 558 free(s->internal->tlsext_supportedgroups); 559 560 sk_X509_EXTENSION_pop_free(s->internal->tlsext_ocsp_exts, 561 X509_EXTENSION_free); 562 sk_OCSP_RESPID_pop_free(s->internal->tlsext_ocsp_ids, OCSP_RESPID_free); 563 free(s->internal->tlsext_ocsp_resp); 564 565 sk_X509_NAME_pop_free(s->internal->client_CA, X509_NAME_free); 566 567 if (s->method != NULL) 568 s->method->internal->ssl_free(s); 569 570 SSL_CTX_free(s->ctx); 571 572 free(s->internal->alpn_client_proto_list); 573 574#ifndef OPENSSL_NO_SRTP 575 sk_SRTP_PROTECTION_PROFILE_free(s->internal->srtp_profiles); 576#endif 577 578 tls12_record_layer_free(s->internal->rl); 579 580 free(s->internal); 581 free(s); 582} 583 584int 585SSL_up_ref(SSL *s) 586{ 587 int refs = CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL); 588 return (refs > 1) ? 1 : 0; 589} 590 591void 592SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 593{ 594 /* If the output buffering BIO is still in place, remove it */ 595 if (s->bbio != NULL) { 596 if (s->wbio == s->bbio) { 597 s->wbio = s->wbio->next_bio; 598 s->bbio->next_bio = NULL; 599 } 600 } 601 602 if (s->rbio != rbio && s->rbio != s->wbio) 603 BIO_free_all(s->rbio); 604 if (s->wbio != wbio) 605 BIO_free_all(s->wbio); 606 s->rbio = rbio; 607 s->wbio = wbio; 608} 609 610BIO * 611SSL_get_rbio(const SSL *s) 612{ 613 return (s->rbio); 614} 615 616BIO * 617SSL_get_wbio(const SSL *s) 618{ 619 return (s->wbio); 620} 621 622int 623SSL_get_fd(const SSL *s) 624{ 625 return (SSL_get_rfd(s)); 626} 627 628int 629SSL_get_rfd(const SSL *s) 630{ 631 int ret = -1; 632 BIO *b, *r; 633 634 b = SSL_get_rbio(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_get_wfd(const SSL *s) 643{ 644 int ret = -1; 645 BIO *b, *r; 646 647 b = SSL_get_wbio(s); 648 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 649 if (r != NULL) 650 BIO_get_fd(r, &ret); 651 return (ret); 652} 653 654int 655SSL_set_fd(SSL *s, int fd) 656{ 657 int ret = 0; 658 BIO *bio = NULL; 659 660 bio = BIO_new(BIO_s_socket()); 661 662 if (bio == NULL) { 663 SSLerror(s, ERR_R_BUF_LIB); 664 goto err; 665 } 666 BIO_set_fd(bio, fd, BIO_NOCLOSE); 667 SSL_set_bio(s, bio, bio); 668 ret = 1; 669err: 670 return (ret); 671} 672 673int 674SSL_set_wfd(SSL *s, int fd) 675{ 676 int ret = 0; 677 BIO *bio = NULL; 678 679 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 680 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 681 bio = BIO_new(BIO_s_socket()); 682 683 if (bio == NULL) { 684 SSLerror(s, ERR_R_BUF_LIB); 685 goto err; 686 } 687 BIO_set_fd(bio, fd, BIO_NOCLOSE); 688 SSL_set_bio(s, SSL_get_rbio(s), bio); 689 } else 690 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 691 ret = 1; 692err: 693 return (ret); 694} 695 696int 697SSL_set_rfd(SSL *s, int fd) 698{ 699 int ret = 0; 700 BIO *bio = NULL; 701 702 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 703 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 704 bio = BIO_new(BIO_s_socket()); 705 706 if (bio == NULL) { 707 SSLerror(s, ERR_R_BUF_LIB); 708 goto err; 709 } 710 BIO_set_fd(bio, fd, BIO_NOCLOSE); 711 SSL_set_bio(s, bio, SSL_get_wbio(s)); 712 } else 713 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 714 ret = 1; 715err: 716 return (ret); 717} 718 719 720/* return length of latest Finished message we sent, copy to 'buf' */ 721size_t 722SSL_get_finished(const SSL *s, void *buf, size_t count) 723{ 724 size_t ret; 725 726 ret = S3I(s)->hs.finished_len; 727 if (count > ret) 728 count = ret; 729 memcpy(buf, S3I(s)->hs.finished, count); 730 return (ret); 731} 732 733/* return length of latest Finished message we expected, copy to 'buf' */ 734size_t 735SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 736{ 737 size_t ret; 738 739 ret = S3I(s)->hs.peer_finished_len; 740 if (count > ret) 741 count = ret; 742 memcpy(buf, S3I(s)->hs.peer_finished, count); 743 return (ret); 744} 745 746 747int 748SSL_get_verify_mode(const SSL *s) 749{ 750 return (s->verify_mode); 751} 752 753int 754SSL_get_verify_depth(const SSL *s) 755{ 756 return (X509_VERIFY_PARAM_get_depth(s->param)); 757} 758 759int 760(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 761{ 762 return (s->internal->verify_callback); 763} 764 765int 766SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 767{ 768 return (ctx->verify_mode); 769} 770 771int 772SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 773{ 774 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 775} 776 777int 778(*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 779{ 780 return (ctx->internal->default_verify_callback); 781} 782 783void 784SSL_set_verify(SSL *s, int mode, 785 int (*callback)(int ok, X509_STORE_CTX *ctx)) 786{ 787 s->verify_mode = mode; 788 if (callback != NULL) 789 s->internal->verify_callback = callback; 790} 791 792void 793SSL_set_verify_depth(SSL *s, int depth) 794{ 795 X509_VERIFY_PARAM_set_depth(s->param, depth); 796} 797 798void 799SSL_set_read_ahead(SSL *s, int yes) 800{ 801 s->internal->read_ahead = yes; 802} 803 804int 805SSL_get_read_ahead(const SSL *s) 806{ 807 return (s->internal->read_ahead); 808} 809 810int 811SSL_pending(const SSL *s) 812{ 813 return (s->method->internal->ssl_pending(s)); 814} 815 816X509 * 817SSL_get_peer_certificate(const SSL *s) 818{ 819 X509 *r; 820 821 if ((s == NULL) || (s->session == NULL)) 822 r = NULL; 823 else 824 r = s->session->peer; 825 826 if (r == NULL) 827 return (r); 828 829 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509); 830 831 return (r); 832} 833 834STACK_OF(X509) * 835SSL_get_peer_cert_chain(const SSL *s) 836{ 837 STACK_OF(X509) *r; 838 839 if ((s == NULL) || (s->session == NULL) || 840 (SSI(s)->sess_cert == NULL)) 841 r = NULL; 842 else 843 r = SSI(s)->sess_cert->cert_chain; 844 845 /* 846 * If we are a client, cert_chain includes the peer's own 847 * certificate; 848 * if we are a server, it does not. 849 */ 850 return (r); 851} 852 853/* 854 * Now in theory, since the calling process own 't' it should be safe to 855 * modify. We need to be able to read f without being hassled 856 */ 857int 858SSL_copy_session_id(SSL *t, const SSL *f) 859{ 860 CERT *tmp; 861 862 /* Do we need to do SSL locking? */ 863 if (!SSL_set_session(t, SSL_get_session(f))) 864 return 0; 865 866 /* What if we are set up for one protocol but want to talk another? */ 867 if (t->method != f->method) { 868 t->method->internal->ssl_free(t); 869 t->method = f->method; 870 if (!t->method->internal->ssl_new(t)) 871 return 0; 872 } 873 874 tmp = t->cert; 875 if (f->cert != NULL) { 876 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 877 t->cert = f->cert; 878 } else 879 t->cert = NULL; 880 ssl_cert_free(tmp); 881 882 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) 883 return 0; 884 885 return 1; 886} 887 888/* Fix this so it checks all the valid key/cert options */ 889int 890SSL_CTX_check_private_key(const SSL_CTX *ctx) 891{ 892 if ((ctx == NULL) || (ctx->internal->cert == NULL) || 893 (ctx->internal->cert->key->x509 == NULL)) { 894 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED); 895 return (0); 896 } 897 if (ctx->internal->cert->key->privatekey == NULL) { 898 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED); 899 return (0); 900 } 901 return (X509_check_private_key(ctx->internal->cert->key->x509, 902 ctx->internal->cert->key->privatekey)); 903} 904 905/* Fix this function so that it takes an optional type parameter */ 906int 907SSL_check_private_key(const SSL *ssl) 908{ 909 if (ssl == NULL) { 910 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); 911 return (0); 912 } 913 if (ssl->cert == NULL) { 914 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 915 return (0); 916 } 917 if (ssl->cert->key->x509 == NULL) { 918 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 919 return (0); 920 } 921 if (ssl->cert->key->privatekey == NULL) { 922 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 923 return (0); 924 } 925 return (X509_check_private_key(ssl->cert->key->x509, 926 ssl->cert->key->privatekey)); 927} 928 929int 930SSL_accept(SSL *s) 931{ 932 if (s->internal->handshake_func == NULL) 933 SSL_set_accept_state(s); /* Not properly initialized yet */ 934 935 return (s->method->internal->ssl_accept(s)); 936} 937 938int 939SSL_connect(SSL *s) 940{ 941 if (s->internal->handshake_func == NULL) 942 SSL_set_connect_state(s); /* Not properly initialized yet */ 943 944 return (s->method->internal->ssl_connect(s)); 945} 946 947int 948SSL_is_dtls(const SSL *s) 949{ 950 return s->method->internal->dtls; 951} 952 953int 954SSL_is_server(const SSL *s) 955{ 956 return s->server; 957} 958 959static long 960ssl_get_default_timeout() 961{ 962 /* 963 * 2 hours, the 24 hours mentioned in the TLSv1 spec 964 * is way too long for http, the cache would over fill. 965 */ 966 return (2 * 60 * 60); 967} 968 969long 970SSL_get_default_timeout(const SSL *s) 971{ 972 return (ssl_get_default_timeout()); 973} 974 975int 976SSL_read(SSL *s, 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_RECEIVED_SHUTDOWN) { 984 s->internal->rwstate = SSL_NOTHING; 985 return (0); 986 } 987 return ssl3_read(s, buf, num); 988} 989 990int 991SSL_peek(SSL *s, void *buf, int num) 992{ 993 if (s->internal->handshake_func == NULL) { 994 SSLerror(s, SSL_R_UNINITIALIZED); 995 return (-1); 996 } 997 998 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 999 return (0); 1000 } 1001 return ssl3_peek(s, buf, num); 1002} 1003 1004int 1005SSL_write(SSL *s, const void *buf, int num) 1006{ 1007 if (s->internal->handshake_func == NULL) { 1008 SSLerror(s, SSL_R_UNINITIALIZED); 1009 return (-1); 1010 } 1011 1012 if (s->internal->shutdown & SSL_SENT_SHUTDOWN) { 1013 s->internal->rwstate = SSL_NOTHING; 1014 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 1015 return (-1); 1016 } 1017 return ssl3_write(s, buf, num); 1018} 1019 1020uint32_t 1021SSL_CTX_get_max_early_data(const SSL_CTX *ctx) 1022{ 1023 return 0; 1024} 1025 1026int 1027SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) 1028{ 1029 return 1; 1030} 1031 1032uint32_t 1033SSL_get_max_early_data(const SSL *s) 1034{ 1035 return 0; 1036} 1037 1038int 1039SSL_set_max_early_data(SSL *s, uint32_t max_early_data) 1040{ 1041 return 1; 1042} 1043 1044int 1045SSL_get_early_data_status(const SSL *s) 1046{ 1047 return SSL_EARLY_DATA_REJECTED; 1048} 1049 1050int 1051SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) 1052{ 1053 *readbytes = 0; 1054 1055 if (!s->server) { 1056 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1057 return SSL_READ_EARLY_DATA_ERROR; 1058 } 1059 1060 return SSL_READ_EARLY_DATA_FINISH; 1061} 1062 1063int 1064SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) 1065{ 1066 *written = 0; 1067 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1068 return 0; 1069} 1070 1071int 1072SSL_shutdown(SSL *s) 1073{ 1074 /* 1075 * Note that this function behaves differently from what one might 1076 * expect. Return values are 0 for no success (yet), 1077 * 1 for success; but calling it once is usually not enough, 1078 * even if blocking I/O is used (see ssl3_shutdown). 1079 */ 1080 1081 if (s->internal->handshake_func == NULL) { 1082 SSLerror(s, SSL_R_UNINITIALIZED); 1083 return (-1); 1084 } 1085 1086 if (s != NULL && !SSL_in_init(s)) 1087 return (s->method->internal->ssl_shutdown(s)); 1088 1089 return (1); 1090} 1091 1092int 1093SSL_renegotiate(SSL *s) 1094{ 1095 if (s->internal->renegotiate == 0) 1096 s->internal->renegotiate = 1; 1097 1098 s->internal->new_session = 1; 1099 1100 return (s->method->internal->ssl_renegotiate(s)); 1101} 1102 1103int 1104SSL_renegotiate_abbreviated(SSL *s) 1105{ 1106 if (s->internal->renegotiate == 0) 1107 s->internal->renegotiate = 1; 1108 1109 s->internal->new_session = 0; 1110 1111 return (s->method->internal->ssl_renegotiate(s)); 1112} 1113 1114int 1115SSL_renegotiate_pending(SSL *s) 1116{ 1117 /* 1118 * Becomes true when negotiation is requested; 1119 * false again once a handshake has finished. 1120 */ 1121 return (s->internal->renegotiate != 0); 1122} 1123 1124long 1125SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1126{ 1127 long l; 1128 1129 switch (cmd) { 1130 case SSL_CTRL_GET_READ_AHEAD: 1131 return (s->internal->read_ahead); 1132 case SSL_CTRL_SET_READ_AHEAD: 1133 l = s->internal->read_ahead; 1134 s->internal->read_ahead = larg; 1135 return (l); 1136 1137 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1138 s->internal->msg_callback_arg = parg; 1139 return (1); 1140 1141 case SSL_CTRL_OPTIONS: 1142 return (s->internal->options|=larg); 1143 case SSL_CTRL_CLEAR_OPTIONS: 1144 return (s->internal->options&=~larg); 1145 case SSL_CTRL_MODE: 1146 return (s->internal->mode|=larg); 1147 case SSL_CTRL_CLEAR_MODE: 1148 return (s->internal->mode &=~larg); 1149 case SSL_CTRL_GET_MAX_CERT_LIST: 1150 return (s->internal->max_cert_list); 1151 case SSL_CTRL_SET_MAX_CERT_LIST: 1152 l = s->internal->max_cert_list; 1153 s->internal->max_cert_list = larg; 1154 return (l); 1155 case SSL_CTRL_SET_MTU: 1156#ifndef OPENSSL_NO_DTLS1 1157 if (larg < (long)dtls1_min_mtu()) 1158 return (0); 1159#endif 1160 if (SSL_is_dtls(s)) { 1161 D1I(s)->mtu = larg; 1162 return (larg); 1163 } 1164 return (0); 1165 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1166 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1167 return (0); 1168 s->max_send_fragment = larg; 1169 return (1); 1170 case SSL_CTRL_GET_RI_SUPPORT: 1171 if (s->s3) 1172 return (S3I(s)->send_connection_binding); 1173 else return (0); 1174 default: 1175 if (SSL_is_dtls(s)) 1176 return dtls1_ctrl(s, cmd, larg, parg); 1177 return ssl3_ctrl(s, cmd, larg, parg); 1178 } 1179} 1180 1181long 1182SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1183{ 1184 switch (cmd) { 1185 case SSL_CTRL_SET_MSG_CALLBACK: 1186 s->internal->msg_callback = (void (*)(int write_p, int version, 1187 int content_type, const void *buf, size_t len, 1188 SSL *ssl, void *arg))(fp); 1189 return (1); 1190 1191 default: 1192 return (ssl3_callback_ctrl(s, cmd, fp)); 1193 } 1194} 1195 1196struct lhash_st_SSL_SESSION * 1197SSL_CTX_sessions(SSL_CTX *ctx) 1198{ 1199 return (ctx->internal->sessions); 1200} 1201 1202long 1203SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1204{ 1205 long l; 1206 1207 switch (cmd) { 1208 case SSL_CTRL_GET_READ_AHEAD: 1209 return (ctx->internal->read_ahead); 1210 case SSL_CTRL_SET_READ_AHEAD: 1211 l = ctx->internal->read_ahead; 1212 ctx->internal->read_ahead = larg; 1213 return (l); 1214 1215 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1216 ctx->internal->msg_callback_arg = parg; 1217 return (1); 1218 1219 case SSL_CTRL_GET_MAX_CERT_LIST: 1220 return (ctx->internal->max_cert_list); 1221 case SSL_CTRL_SET_MAX_CERT_LIST: 1222 l = ctx->internal->max_cert_list; 1223 ctx->internal->max_cert_list = larg; 1224 return (l); 1225 1226 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1227 l = ctx->internal->session_cache_size; 1228 ctx->internal->session_cache_size = larg; 1229 return (l); 1230 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1231 return (ctx->internal->session_cache_size); 1232 case SSL_CTRL_SET_SESS_CACHE_MODE: 1233 l = ctx->internal->session_cache_mode; 1234 ctx->internal->session_cache_mode = larg; 1235 return (l); 1236 case SSL_CTRL_GET_SESS_CACHE_MODE: 1237 return (ctx->internal->session_cache_mode); 1238 1239 case SSL_CTRL_SESS_NUMBER: 1240 return (lh_SSL_SESSION_num_items(ctx->internal->sessions)); 1241 case SSL_CTRL_SESS_CONNECT: 1242 return (ctx->internal->stats.sess_connect); 1243 case SSL_CTRL_SESS_CONNECT_GOOD: 1244 return (ctx->internal->stats.sess_connect_good); 1245 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1246 return (ctx->internal->stats.sess_connect_renegotiate); 1247 case SSL_CTRL_SESS_ACCEPT: 1248 return (ctx->internal->stats.sess_accept); 1249 case SSL_CTRL_SESS_ACCEPT_GOOD: 1250 return (ctx->internal->stats.sess_accept_good); 1251 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1252 return (ctx->internal->stats.sess_accept_renegotiate); 1253 case SSL_CTRL_SESS_HIT: 1254 return (ctx->internal->stats.sess_hit); 1255 case SSL_CTRL_SESS_CB_HIT: 1256 return (ctx->internal->stats.sess_cb_hit); 1257 case SSL_CTRL_SESS_MISSES: 1258 return (ctx->internal->stats.sess_miss); 1259 case SSL_CTRL_SESS_TIMEOUTS: 1260 return (ctx->internal->stats.sess_timeout); 1261 case SSL_CTRL_SESS_CACHE_FULL: 1262 return (ctx->internal->stats.sess_cache_full); 1263 case SSL_CTRL_OPTIONS: 1264 return (ctx->internal->options|=larg); 1265 case SSL_CTRL_CLEAR_OPTIONS: 1266 return (ctx->internal->options&=~larg); 1267 case SSL_CTRL_MODE: 1268 return (ctx->internal->mode|=larg); 1269 case SSL_CTRL_CLEAR_MODE: 1270 return (ctx->internal->mode&=~larg); 1271 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1272 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1273 return (0); 1274 ctx->internal->max_send_fragment = larg; 1275 return (1); 1276 default: 1277 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1278 } 1279} 1280 1281long 1282SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1283{ 1284 switch (cmd) { 1285 case SSL_CTRL_SET_MSG_CALLBACK: 1286 ctx->internal->msg_callback = (void (*)(int write_p, int version, 1287 int content_type, const void *buf, size_t len, SSL *ssl, 1288 void *arg))(fp); 1289 return (1); 1290 1291 default: 1292 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1293 } 1294} 1295 1296int 1297ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1298{ 1299 long l; 1300 1301 l = a->id - b->id; 1302 if (l == 0L) 1303 return (0); 1304 else 1305 return ((l > 0) ? 1:-1); 1306} 1307 1308STACK_OF(SSL_CIPHER) * 1309SSL_get_ciphers(const SSL *s) 1310{ 1311 if (s == NULL) 1312 return (NULL); 1313 if (s->cipher_list != NULL) 1314 return (s->cipher_list); 1315 1316 return (s->ctx->cipher_list); 1317} 1318 1319STACK_OF(SSL_CIPHER) * 1320SSL_get_client_ciphers(const SSL *s) 1321{ 1322 if (s == NULL || s->session == NULL || !s->server) 1323 return NULL; 1324 return s->session->ciphers; 1325} 1326 1327STACK_OF(SSL_CIPHER) * 1328SSL_get1_supported_ciphers(SSL *s) 1329{ 1330 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers; 1331 const SSL_CIPHER *cipher; 1332 uint16_t min_vers, max_vers; 1333 int i; 1334 1335 if (s == NULL) 1336 return NULL; 1337 if (!ssl_supported_tls_version_range(s, &min_vers, &max_vers)) 1338 return NULL; 1339 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1340 return NULL; 1341 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL) 1342 return NULL; 1343 1344 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1345 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL) 1346 goto err; 1347 if (!ssl_cipher_allowed_in_tls_version_range(cipher, min_vers, 1348 max_vers)) 1349 continue; 1350 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher)) 1351 goto err; 1352 } 1353 1354 if (sk_SSL_CIPHER_num(supported_ciphers) > 0) 1355 return supported_ciphers; 1356 1357 err: 1358 sk_SSL_CIPHER_free(supported_ciphers); 1359 return NULL; 1360} 1361 1362/* See if we have any ECC cipher suites. */ 1363int 1364ssl_has_ecc_ciphers(SSL *s) 1365{ 1366 STACK_OF(SSL_CIPHER) *ciphers; 1367 unsigned long alg_k, alg_a; 1368 SSL_CIPHER *cipher; 1369 int i; 1370 1371 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1372 return 0; 1373 1374 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1375 cipher = sk_SSL_CIPHER_value(ciphers, i); 1376 1377 alg_k = cipher->algorithm_mkey; 1378 alg_a = cipher->algorithm_auth; 1379 1380 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1381 return 1; 1382 } 1383 1384 return 0; 1385} 1386 1387/* The old interface to get the same thing as SSL_get_ciphers(). */ 1388const char * 1389SSL_get_cipher_list(const SSL *s, int n) 1390{ 1391 STACK_OF(SSL_CIPHER) *ciphers; 1392 const SSL_CIPHER *cipher; 1393 1394 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1395 return (NULL); 1396 if ((cipher = sk_SSL_CIPHER_value(ciphers, n)) == NULL) 1397 return (NULL); 1398 1399 return (cipher->name); 1400} 1401 1402STACK_OF(SSL_CIPHER) * 1403SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1404{ 1405 if (ctx == NULL) 1406 return NULL; 1407 return ctx->cipher_list; 1408} 1409 1410/* Specify the ciphers to be used by default by the SSL_CTX. */ 1411int 1412SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1413{ 1414 STACK_OF(SSL_CIPHER) *ciphers; 1415 1416 /* 1417 * ssl_create_cipher_list may return an empty stack if it was unable to 1418 * find a cipher matching the given rule string (for example if the 1419 * rule string specifies a cipher which has been disabled). This is not 1420 * an error as far as ssl_create_cipher_list is concerned, and hence 1421 * ctx->cipher_list has been updated. 1422 */ 1423 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1424 ctx->internal->cipher_list_tls13, str); 1425 if (ciphers == NULL) { 1426 return (0); 1427 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1428 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1429 return (0); 1430 } 1431 return (1); 1432} 1433 1434int 1435SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str) 1436{ 1437 if (!ssl_parse_ciphersuites(&ctx->internal->cipher_list_tls13, str)) { 1438 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1439 return 0; 1440 } 1441 if (!ssl_merge_cipherlists(ctx->cipher_list, 1442 ctx->internal->cipher_list_tls13, &ctx->cipher_list)) 1443 return 0; 1444 1445 return 1; 1446} 1447 1448/* Specify the ciphers to be used by the SSL. */ 1449int 1450SSL_set_cipher_list(SSL *s, const char *str) 1451{ 1452 STACK_OF(SSL_CIPHER) *ciphers, *ciphers_tls13; 1453 1454 if ((ciphers_tls13 = s->internal->cipher_list_tls13) == NULL) 1455 ciphers_tls13 = s->ctx->internal->cipher_list_tls13; 1456 1457 /* See comment in SSL_CTX_set_cipher_list. */ 1458 ciphers = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1459 ciphers_tls13, str); 1460 if (ciphers == NULL) { 1461 return (0); 1462 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1463 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1464 return (0); 1465 } 1466 return (1); 1467} 1468 1469int 1470SSL_set_ciphersuites(SSL *s, const char *str) 1471{ 1472 STACK_OF(SSL_CIPHER) *ciphers; 1473 1474 if ((ciphers = s->cipher_list) == NULL) 1475 ciphers = s->ctx->cipher_list; 1476 1477 if (!ssl_parse_ciphersuites(&s->internal->cipher_list_tls13, str)) { 1478 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1479 return (0); 1480 } 1481 if (!ssl_merge_cipherlists(ciphers, s->internal->cipher_list_tls13, 1482 &s->cipher_list)) 1483 return 0; 1484 1485 return 1; 1486} 1487 1488char * 1489SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1490{ 1491 STACK_OF(SSL_CIPHER) *client_ciphers, *server_ciphers; 1492 const SSL_CIPHER *cipher; 1493 size_t curlen = 0; 1494 char *end; 1495 int i; 1496 1497 if (!s->server || s->session == NULL || len < 2) 1498 return NULL; 1499 1500 if ((client_ciphers = s->session->ciphers) == NULL) 1501 return NULL; 1502 if ((server_ciphers = SSL_get_ciphers(s)) == NULL) 1503 return NULL; 1504 if (sk_SSL_CIPHER_num(client_ciphers) == 0 || 1505 sk_SSL_CIPHER_num(server_ciphers) == 0) 1506 return NULL; 1507 1508 buf[0] = '\0'; 1509 for (i = 0; i < sk_SSL_CIPHER_num(client_ciphers); i++) { 1510 cipher = sk_SSL_CIPHER_value(client_ciphers, i); 1511 1512 if (sk_SSL_CIPHER_find(server_ciphers, cipher) < 0) 1513 continue; 1514 1515 end = buf + curlen; 1516 if (strlcat(buf, cipher->name, len) >= len || 1517 (curlen = strlcat(buf, ":", len)) >= len) { 1518 /* remove truncated cipher from list */ 1519 *end = '\0'; 1520 break; 1521 } 1522 } 1523 /* remove trailing colon */ 1524 if ((end = strrchr(buf, ':')) != NULL) 1525 *end = '\0'; 1526 return buf; 1527} 1528 1529/* 1530 * Return a servername extension value if provided in Client Hello, or NULL. 1531 * So far, only host_name types are defined (RFC 3546). 1532 */ 1533const char * 1534SSL_get_servername(const SSL *s, const int type) 1535{ 1536 if (type != TLSEXT_NAMETYPE_host_name) 1537 return (NULL); 1538 1539 return (s->session && !s->tlsext_hostname ? 1540 s->session->tlsext_hostname : 1541 s->tlsext_hostname); 1542} 1543 1544int 1545SSL_get_servername_type(const SSL *s) 1546{ 1547 if (s->session && 1548 (!s->tlsext_hostname ? 1549 s->session->tlsext_hostname : s->tlsext_hostname)) 1550 return (TLSEXT_NAMETYPE_host_name); 1551 return (-1); 1552} 1553 1554/* 1555 * SSL_select_next_proto implements standard protocol selection. It is 1556 * expected that this function is called from the callback set by 1557 * SSL_CTX_set_alpn_select_cb. 1558 * 1559 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1560 * strings. The length byte itself is not included in the length. A byte 1561 * string of length 0 is invalid. No byte string may be truncated. 1562 * 1563 * It returns either: 1564 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1565 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1566 */ 1567int 1568SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1569 const unsigned char *server, unsigned int server_len, 1570 const unsigned char *client, unsigned int client_len) 1571{ 1572 unsigned int i, j; 1573 const unsigned char *result; 1574 int status = OPENSSL_NPN_UNSUPPORTED; 1575 1576 /* 1577 * For each protocol in server preference order, 1578 * see if we support it. 1579 */ 1580 for (i = 0; i < server_len; ) { 1581 for (j = 0; j < client_len; ) { 1582 if (server[i] == client[j] && 1583 memcmp(&server[i + 1], 1584 &client[j + 1], server[i]) == 0) { 1585 /* We found a match */ 1586 result = &server[i]; 1587 status = OPENSSL_NPN_NEGOTIATED; 1588 goto found; 1589 } 1590 j += client[j]; 1591 j++; 1592 } 1593 i += server[i]; 1594 i++; 1595 } 1596 1597 /* There's no overlap between our protocols and the server's list. */ 1598 result = client; 1599 status = OPENSSL_NPN_NO_OVERLAP; 1600 1601 found: 1602 *out = (unsigned char *) result + 1; 1603 *outlen = result[0]; 1604 return (status); 1605} 1606 1607/* SSL_get0_next_proto_negotiated is deprecated. */ 1608void 1609SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1610 unsigned int *len) 1611{ 1612 *data = NULL; 1613 *len = 0; 1614} 1615 1616/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1617void 1618SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1619 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1620{ 1621} 1622 1623/* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1624void 1625SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1626 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1627 unsigned int inlen, void *arg), void *arg) 1628{ 1629} 1630 1631/* 1632 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1633 * protocols, which must be in wire-format (i.e. a series of non-empty, 1634 * 8-bit length-prefixed strings). Returns 0 on success. 1635 */ 1636int 1637SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1638 unsigned int protos_len) 1639{ 1640 int failed = 1; 1641 1642 if (protos == NULL || protos_len == 0) 1643 goto err; 1644 1645 free(ctx->internal->alpn_client_proto_list); 1646 ctx->internal->alpn_client_proto_list = NULL; 1647 ctx->internal->alpn_client_proto_list_len = 0; 1648 1649 if ((ctx->internal->alpn_client_proto_list = malloc(protos_len)) 1650 == NULL) 1651 goto err; 1652 ctx->internal->alpn_client_proto_list_len = protos_len; 1653 1654 memcpy(ctx->internal->alpn_client_proto_list, protos, protos_len); 1655 1656 failed = 0; 1657 1658 err: 1659 /* NOTE: Return values are the reverse of what you expect. */ 1660 return (failed); 1661} 1662 1663/* 1664 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1665 * protocols, which must be in wire-format (i.e. a series of non-empty, 1666 * 8-bit length-prefixed strings). Returns 0 on success. 1667 */ 1668int 1669SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1670 unsigned int protos_len) 1671{ 1672 int failed = 1; 1673 1674 if (protos == NULL || protos_len == 0) 1675 goto err; 1676 1677 free(ssl->internal->alpn_client_proto_list); 1678 ssl->internal->alpn_client_proto_list = NULL; 1679 ssl->internal->alpn_client_proto_list_len = 0; 1680 1681 if ((ssl->internal->alpn_client_proto_list = malloc(protos_len)) 1682 == NULL) 1683 goto err; 1684 ssl->internal->alpn_client_proto_list_len = protos_len; 1685 1686 memcpy(ssl->internal->alpn_client_proto_list, protos, protos_len); 1687 1688 failed = 0; 1689 1690 err: 1691 /* NOTE: Return values are the reverse of what you expect. */ 1692 return (failed); 1693} 1694 1695/* 1696 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1697 * ClientHello processing in order to select an ALPN protocol from the 1698 * client's list of offered protocols. 1699 */ 1700void 1701SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1702 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1703 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1704{ 1705 ctx->internal->alpn_select_cb = cb; 1706 ctx->internal->alpn_select_cb_arg = arg; 1707} 1708 1709/* 1710 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1711 * it sets data to point to len bytes of protocol name (not including the 1712 * leading length-prefix byte). If the server didn't respond with* a negotiated 1713 * protocol then len will be zero. 1714 */ 1715void 1716SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1717 unsigned int *len) 1718{ 1719 *data = NULL; 1720 *len = 0; 1721 1722 *data = ssl->s3->internal->alpn_selected; 1723 *len = ssl->s3->internal->alpn_selected_len; 1724} 1725 1726int 1727SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1728 const char *label, size_t llen, const unsigned char *p, size_t plen, 1729 int use_context) 1730{ 1731 if (s->internal->tls13 != NULL && s->version == TLS1_3_VERSION) { 1732 if (!use_context) { 1733 p = NULL; 1734 plen = 0; 1735 } 1736 return tls13_exporter(s->internal->tls13, label, llen, p, plen, 1737 out, olen); 1738 } 1739 1740 return (tls1_export_keying_material(s, out, olen, label, llen, p, plen, 1741 use_context)); 1742} 1743 1744static unsigned long 1745ssl_session_hash(const SSL_SESSION *a) 1746{ 1747 unsigned long l; 1748 1749 l = (unsigned long) 1750 ((unsigned int) a->session_id[0] )| 1751 ((unsigned int) a->session_id[1]<< 8L)| 1752 ((unsigned long)a->session_id[2]<<16L)| 1753 ((unsigned long)a->session_id[3]<<24L); 1754 return (l); 1755} 1756 1757/* 1758 * NB: If this function (or indeed the hash function which uses a sort of 1759 * coarser function than this one) is changed, ensure 1760 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1761 * able to construct an SSL_SESSION that will collide with any existing session 1762 * with a matching session ID. 1763 */ 1764static int 1765ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 1766{ 1767 if (a->ssl_version != b->ssl_version) 1768 return (1); 1769 if (a->session_id_length != b->session_id_length) 1770 return (1); 1771 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 1772 return (1); 1773 return (0); 1774} 1775 1776/* 1777 * These wrapper functions should remain rather than redeclaring 1778 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1779 * variable. The reason is that the functions aren't static, they're exposed via 1780 * ssl.h. 1781 */ 1782static unsigned long 1783ssl_session_LHASH_HASH(const void *arg) 1784{ 1785 const SSL_SESSION *a = arg; 1786 1787 return ssl_session_hash(a); 1788} 1789 1790static int 1791ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 1792{ 1793 const SSL_SESSION *a = arg1; 1794 const SSL_SESSION *b = arg2; 1795 1796 return ssl_session_cmp(a, b); 1797} 1798 1799SSL_CTX * 1800SSL_CTX_new(const SSL_METHOD *meth) 1801{ 1802 SSL_CTX *ret; 1803 1804 if (!OPENSSL_init_ssl(0, NULL)) { 1805 SSLerrorx(SSL_R_LIBRARY_BUG); 1806 return (NULL); 1807 } 1808 1809 if (meth == NULL) { 1810 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 1811 return (NULL); 1812 } 1813 1814 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 1815 SSLerrorx(ERR_R_MALLOC_FAILURE); 1816 return (NULL); 1817 } 1818 if ((ret->internal = calloc(1, sizeof(*ret->internal))) == NULL) { 1819 free(ret); 1820 SSLerrorx(ERR_R_MALLOC_FAILURE); 1821 return (NULL); 1822 } 1823 1824 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 1825 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1826 goto err; 1827 } 1828 1829 ret->method = meth; 1830 ret->internal->min_tls_version = meth->internal->min_tls_version; 1831 ret->internal->max_tls_version = meth->internal->max_tls_version; 1832 ret->internal->min_proto_version = 0; 1833 ret->internal->max_proto_version = 0; 1834 ret->internal->mode = SSL_MODE_AUTO_RETRY; 1835 1836 ret->cert_store = NULL; 1837 ret->internal->session_cache_mode = SSL_SESS_CACHE_SERVER; 1838 ret->internal->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1839 ret->internal->session_cache_head = NULL; 1840 ret->internal->session_cache_tail = NULL; 1841 1842 /* We take the system default */ 1843 ret->session_timeout = ssl_get_default_timeout(); 1844 1845 ret->internal->new_session_cb = 0; 1846 ret->internal->remove_session_cb = 0; 1847 ret->internal->get_session_cb = 0; 1848 ret->internal->generate_session_id = 0; 1849 1850 memset((char *)&ret->internal->stats, 0, sizeof(ret->internal->stats)); 1851 1852 ret->references = 1; 1853 ret->internal->quiet_shutdown = 0; 1854 1855 ret->internal->info_callback = NULL; 1856 1857 ret->internal->app_verify_callback = 0; 1858 ret->internal->app_verify_arg = NULL; 1859 1860 ret->internal->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 1861 ret->internal->read_ahead = 0; 1862 ret->internal->msg_callback = 0; 1863 ret->internal->msg_callback_arg = NULL; 1864 ret->verify_mode = SSL_VERIFY_NONE; 1865 ret->sid_ctx_length = 0; 1866 ret->internal->default_verify_callback = NULL; 1867 1868 if ((ret->internal->cert = ssl_cert_new()) == NULL) 1869 goto err; 1870 1871 ret->default_passwd_callback = 0; 1872 ret->default_passwd_callback_userdata = NULL; 1873 ret->internal->client_cert_cb = 0; 1874 ret->internal->app_gen_cookie_cb = 0; 1875 ret->internal->app_verify_cookie_cb = 0; 1876 1877 ret->internal->sessions = lh_SSL_SESSION_new(); 1878 if (ret->internal->sessions == NULL) 1879 goto err; 1880 ret->cert_store = X509_STORE_new(); 1881 if (ret->cert_store == NULL) 1882 goto err; 1883 1884 ssl_create_cipher_list(ret->method, &ret->cipher_list, 1885 NULL, SSL_DEFAULT_CIPHER_LIST); 1886 if (ret->cipher_list == NULL || 1887 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 1888 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 1889 goto err2; 1890 } 1891 1892 ret->param = X509_VERIFY_PARAM_new(); 1893 if (!ret->param) 1894 goto err; 1895 1896 if ((ret->internal->client_CA = sk_X509_NAME_new_null()) == NULL) 1897 goto err; 1898 1899 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->internal->ex_data); 1900 1901 ret->extra_certs = NULL; 1902 1903 ret->internal->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 1904 1905 ret->internal->tlsext_servername_callback = 0; 1906 ret->internal->tlsext_servername_arg = NULL; 1907 1908 /* Setup RFC4507 ticket keys */ 1909 arc4random_buf(ret->internal->tlsext_tick_key_name, 16); 1910 arc4random_buf(ret->internal->tlsext_tick_hmac_key, 16); 1911 arc4random_buf(ret->internal->tlsext_tick_aes_key, 16); 1912 1913 ret->internal->tlsext_status_cb = 0; 1914 ret->internal->tlsext_status_arg = NULL; 1915 1916#ifndef OPENSSL_NO_ENGINE 1917 ret->internal->client_cert_engine = NULL; 1918#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1919#define eng_strx(x) #x 1920#define eng_str(x) eng_strx(x) 1921 /* Use specific client engine automatically... ignore errors */ 1922 { 1923 ENGINE *eng; 1924 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1925 if (!eng) { 1926 ERR_clear_error(); 1927 ENGINE_load_builtin_engines(); 1928 eng = ENGINE_by_id(eng_str( 1929 OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1930 } 1931 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1932 ERR_clear_error(); 1933 } 1934#endif 1935#endif 1936 /* 1937 * Default is to connect to non-RI servers. When RI is more widely 1938 * deployed might change this. 1939 */ 1940 ret->internal->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1941 1942 return (ret); 1943 err: 1944 SSLerrorx(ERR_R_MALLOC_FAILURE); 1945 err2: 1946 SSL_CTX_free(ret); 1947 return (NULL); 1948} 1949 1950void 1951SSL_CTX_free(SSL_CTX *ctx) 1952{ 1953 int i; 1954 1955 if (ctx == NULL) 1956 return; 1957 1958 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 1959 if (i > 0) 1960 return; 1961 1962 X509_VERIFY_PARAM_free(ctx->param); 1963 1964 /* 1965 * Free internal session cache. However: the remove_cb() may reference 1966 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1967 * after the sessions were flushed. 1968 * As the ex_data handling routines might also touch the session cache, 1969 * the most secure solution seems to be: empty (flush) the cache, then 1970 * free ex_data, then finally free the cache. 1971 * (See ticket [openssl.org #212].) 1972 */ 1973 if (ctx->internal->sessions != NULL) 1974 SSL_CTX_flush_sessions(ctx, 0); 1975 1976 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->internal->ex_data); 1977 1978 lh_SSL_SESSION_free(ctx->internal->sessions); 1979 1980 X509_STORE_free(ctx->cert_store); 1981 sk_SSL_CIPHER_free(ctx->cipher_list); 1982 sk_SSL_CIPHER_free(ctx->internal->cipher_list_tls13); 1983 ssl_cert_free(ctx->internal->cert); 1984 sk_X509_NAME_pop_free(ctx->internal->client_CA, X509_NAME_free); 1985 sk_X509_pop_free(ctx->extra_certs, X509_free); 1986 1987#ifndef OPENSSL_NO_SRTP 1988 if (ctx->internal->srtp_profiles) 1989 sk_SRTP_PROTECTION_PROFILE_free(ctx->internal->srtp_profiles); 1990#endif 1991 1992#ifndef OPENSSL_NO_ENGINE 1993 ENGINE_finish(ctx->internal->client_cert_engine); 1994#endif 1995 1996 free(ctx->internal->tlsext_ecpointformatlist); 1997 free(ctx->internal->tlsext_supportedgroups); 1998 1999 free(ctx->internal->alpn_client_proto_list); 2000 2001 free(ctx->internal); 2002 free(ctx); 2003} 2004 2005int 2006SSL_CTX_up_ref(SSL_CTX *ctx) 2007{ 2008 int refs = CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 2009 return ((refs > 1) ? 1 : 0); 2010} 2011 2012pem_password_cb * 2013SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 2014{ 2015 return (ctx->default_passwd_callback); 2016} 2017 2018void 2019SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 2020{ 2021 ctx->default_passwd_callback = cb; 2022} 2023 2024void * 2025SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 2026{ 2027 return ctx->default_passwd_callback_userdata; 2028} 2029 2030void 2031SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 2032{ 2033 ctx->default_passwd_callback_userdata = u; 2034} 2035 2036void 2037SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, 2038 int (*cb)(X509_STORE_CTX *, void *), void *arg) 2039{ 2040 ctx->internal->app_verify_callback = cb; 2041 ctx->internal->app_verify_arg = arg; 2042} 2043 2044void 2045SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 2046{ 2047 ctx->verify_mode = mode; 2048 ctx->internal->default_verify_callback = cb; 2049} 2050 2051void 2052SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 2053{ 2054 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 2055} 2056 2057static int 2058ssl_cert_can_sign(X509 *x) 2059{ 2060 /* This call populates extension flags (ex_flags). */ 2061 X509_check_purpose(x, -1, 0); 2062 2063 /* Key usage, if present, must allow signing. */ 2064 return ((x->ex_flags & EXFLAG_KUSAGE) == 0 || 2065 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)); 2066} 2067 2068void 2069ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) 2070{ 2071 unsigned long mask_a, mask_k; 2072 CERT_PKEY *cpk; 2073 2074 if (c == NULL) 2075 return; 2076 2077 mask_a = SSL_aNULL | SSL_aTLS1_3; 2078 mask_k = SSL_kECDHE | SSL_kTLS1_3; 2079 2080 if (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto != 0) 2081 mask_k |= SSL_kDHE; 2082 2083 cpk = &(c->pkeys[SSL_PKEY_ECC]); 2084 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2085 if (ssl_cert_can_sign(cpk->x509)) 2086 mask_a |= SSL_aECDSA; 2087 } 2088 2089 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 2090 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2091 mask_k |= SSL_kGOST; 2092 mask_a |= SSL_aGOST01; 2093 } 2094 2095 cpk = &(c->pkeys[SSL_PKEY_RSA]); 2096 if (cpk->x509 != NULL && cpk->privatekey != NULL) { 2097 mask_a |= SSL_aRSA; 2098 mask_k |= SSL_kRSA; 2099 } 2100 2101 c->mask_k = mask_k; 2102 c->mask_a = mask_a; 2103 c->valid = 1; 2104} 2105 2106/* See if this handshake is using an ECC cipher suite. */ 2107int 2108ssl_using_ecc_cipher(SSL *s) 2109{ 2110 unsigned long alg_a, alg_k; 2111 2112 alg_a = S3I(s)->hs.cipher->algorithm_auth; 2113 alg_k = S3I(s)->hs.cipher->algorithm_mkey; 2114 2115 return SSI(s)->tlsext_ecpointformatlist != NULL && 2116 SSI(s)->tlsext_ecpointformatlist_length > 0 && 2117 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 2118} 2119 2120int 2121ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) 2122{ 2123 const SSL_CIPHER *cs = S3I(s)->hs.cipher; 2124 unsigned long alg_a; 2125 2126 alg_a = cs->algorithm_auth; 2127 2128 if (alg_a & SSL_aECDSA) { 2129 /* This call populates extension flags (ex_flags). */ 2130 X509_check_purpose(x, -1, 0); 2131 2132 /* Key usage, if present, must allow signing. */ 2133 if ((x->ex_flags & EXFLAG_KUSAGE) && 2134 ((x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) == 0)) { 2135 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2136 return (0); 2137 } 2138 } 2139 2140 return (1); 2141} 2142 2143CERT_PKEY * 2144ssl_get_server_send_pkey(const SSL *s) 2145{ 2146 unsigned long alg_a; 2147 CERT *c; 2148 int i; 2149 2150 c = s->cert; 2151 ssl_set_cert_masks(c, S3I(s)->hs.cipher); 2152 2153 alg_a = S3I(s)->hs.cipher->algorithm_auth; 2154 2155 if (alg_a & SSL_aECDSA) { 2156 i = SSL_PKEY_ECC; 2157 } else if (alg_a & SSL_aRSA) { 2158 i = SSL_PKEY_RSA; 2159 } else if (alg_a & SSL_aGOST01) { 2160 i = SSL_PKEY_GOST01; 2161 } else { /* if (alg_a & SSL_aNULL) */ 2162 SSLerror(s, ERR_R_INTERNAL_ERROR); 2163 return (NULL); 2164 } 2165 2166 return (c->pkeys + i); 2167} 2168 2169EVP_PKEY * 2170ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2171 const struct ssl_sigalg **sap) 2172{ 2173 const struct ssl_sigalg *sigalg = NULL; 2174 EVP_PKEY *pkey = NULL; 2175 unsigned long alg_a; 2176 CERT *c; 2177 int idx = -1; 2178 2179 alg_a = cipher->algorithm_auth; 2180 c = s->cert; 2181 2182 if (alg_a & SSL_aRSA) { 2183 idx = SSL_PKEY_RSA; 2184 } else if ((alg_a & SSL_aECDSA) && 2185 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2186 idx = SSL_PKEY_ECC; 2187 if (idx == -1) { 2188 SSLerror(s, ERR_R_INTERNAL_ERROR); 2189 return (NULL); 2190 } 2191 2192 pkey = c->pkeys[idx].privatekey; 2193 if ((sigalg = ssl_sigalg_select(s, pkey)) == NULL) { 2194 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2195 return (NULL); 2196 } 2197 *pmd = sigalg->md(); 2198 *sap = sigalg; 2199 2200 return (pkey); 2201} 2202 2203DH * 2204ssl_get_auto_dh(SSL *s) 2205{ 2206 CERT_PKEY *cpk; 2207 int keylen; 2208 DH *dhp; 2209 2210 if (s->cert->dh_tmp_auto == 2) { 2211 keylen = 1024; 2212 } else if (S3I(s)->hs.cipher->algorithm_auth & SSL_aNULL) { 2213 keylen = 1024; 2214 if (S3I(s)->hs.cipher->strength_bits == 256) 2215 keylen = 3072; 2216 } else { 2217 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2218 return (NULL); 2219 if (cpk->privatekey == NULL || cpk->privatekey->pkey.dh == NULL) 2220 return (NULL); 2221 keylen = EVP_PKEY_bits(cpk->privatekey); 2222 } 2223 2224 if ((dhp = DH_new()) == NULL) 2225 return (NULL); 2226 2227 dhp->g = BN_new(); 2228 if (dhp->g != NULL) 2229 BN_set_word(dhp->g, 2); 2230 2231 if (keylen >= 8192) 2232 dhp->p = get_rfc3526_prime_8192(NULL); 2233 else if (keylen >= 4096) 2234 dhp->p = get_rfc3526_prime_4096(NULL); 2235 else if (keylen >= 3072) 2236 dhp->p = get_rfc3526_prime_3072(NULL); 2237 else if (keylen >= 2048) 2238 dhp->p = get_rfc3526_prime_2048(NULL); 2239 else if (keylen >= 1536) 2240 dhp->p = get_rfc3526_prime_1536(NULL); 2241 else 2242 dhp->p = get_rfc2409_prime_1024(NULL); 2243 2244 if (dhp->p == NULL || dhp->g == NULL) { 2245 DH_free(dhp); 2246 return (NULL); 2247 } 2248 return (dhp); 2249} 2250 2251void 2252ssl_update_cache(SSL *s, int mode) 2253{ 2254 int i; 2255 2256 /* 2257 * If the session_id_length is 0, we are not supposed to cache it, 2258 * and it would be rather hard to do anyway :-) 2259 */ 2260 if (s->session->session_id_length == 0) 2261 return; 2262 2263 i = s->session_ctx->internal->session_cache_mode; 2264 if ((i & mode) && (!s->internal->hit) && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2265 || SSL_CTX_add_session(s->session_ctx, s->session)) 2266 && (s->session_ctx->internal->new_session_cb != NULL)) { 2267 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2268 if (!s->session_ctx->internal->new_session_cb(s, s->session)) 2269 SSL_SESSION_free(s->session); 2270 } 2271 2272 /* auto flush every 255 connections */ 2273 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2274 ((i & mode) == mode)) { 2275 if ((((mode & SSL_SESS_CACHE_CLIENT) ? 2276 s->session_ctx->internal->stats.sess_connect_good : 2277 s->session_ctx->internal->stats.sess_accept_good) & 0xff) == 0xff) { 2278 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2279 } 2280 } 2281} 2282 2283const SSL_METHOD * 2284SSL_get_ssl_method(SSL *s) 2285{ 2286 return (s->method); 2287} 2288 2289int 2290SSL_set_ssl_method(SSL *s, const SSL_METHOD *method) 2291{ 2292 int (*handshake_func)(SSL *) = NULL; 2293 int ret = 1; 2294 2295 if (s->method == method) 2296 return (ret); 2297 2298 if (s->internal->handshake_func == s->method->internal->ssl_connect) 2299 handshake_func = method->internal->ssl_connect; 2300 else if (s->internal->handshake_func == s->method->internal->ssl_accept) 2301 handshake_func = method->internal->ssl_accept; 2302 2303 if (s->method->internal->version == method->internal->version) { 2304 s->method = method; 2305 } else { 2306 s->method->internal->ssl_free(s); 2307 s->method = method; 2308 ret = s->method->internal->ssl_new(s); 2309 } 2310 s->internal->handshake_func = handshake_func; 2311 2312 return (ret); 2313} 2314 2315int 2316SSL_get_error(const SSL *s, int i) 2317{ 2318 int reason; 2319 unsigned long l; 2320 BIO *bio; 2321 2322 if (i > 0) 2323 return (SSL_ERROR_NONE); 2324 2325 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2326 * etc, where we do encode the error */ 2327 if ((l = ERR_peek_error()) != 0) { 2328 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2329 return (SSL_ERROR_SYSCALL); 2330 else 2331 return (SSL_ERROR_SSL); 2332 } 2333 2334 if ((i < 0) && SSL_want_read(s)) { 2335 bio = SSL_get_rbio(s); 2336 if (BIO_should_read(bio)) { 2337 return (SSL_ERROR_WANT_READ); 2338 } else if (BIO_should_write(bio)) { 2339 /* 2340 * This one doesn't make too much sense... We never 2341 * try to write to the rbio, and an application 2342 * program where rbio and wbio are separate couldn't 2343 * even know what it should wait for. However if we 2344 * ever set s->internal->rwstate incorrectly (so that we have 2345 * SSL_want_read(s) instead of SSL_want_write(s)) 2346 * and rbio and wbio *are* the same, this test works 2347 * around that bug; so it might be safer to keep it. 2348 */ 2349 return (SSL_ERROR_WANT_WRITE); 2350 } else if (BIO_should_io_special(bio)) { 2351 reason = BIO_get_retry_reason(bio); 2352 if (reason == BIO_RR_CONNECT) 2353 return (SSL_ERROR_WANT_CONNECT); 2354 else if (reason == BIO_RR_ACCEPT) 2355 return (SSL_ERROR_WANT_ACCEPT); 2356 else 2357 return (SSL_ERROR_SYSCALL); /* unknown */ 2358 } 2359 } 2360 2361 if ((i < 0) && SSL_want_write(s)) { 2362 bio = SSL_get_wbio(s); 2363 if (BIO_should_write(bio)) { 2364 return (SSL_ERROR_WANT_WRITE); 2365 } else if (BIO_should_read(bio)) { 2366 /* 2367 * See above (SSL_want_read(s) with 2368 * BIO_should_write(bio)) 2369 */ 2370 return (SSL_ERROR_WANT_READ); 2371 } else if (BIO_should_io_special(bio)) { 2372 reason = BIO_get_retry_reason(bio); 2373 if (reason == BIO_RR_CONNECT) 2374 return (SSL_ERROR_WANT_CONNECT); 2375 else if (reason == BIO_RR_ACCEPT) 2376 return (SSL_ERROR_WANT_ACCEPT); 2377 else 2378 return (SSL_ERROR_SYSCALL); 2379 } 2380 } 2381 if ((i < 0) && SSL_want_x509_lookup(s)) { 2382 return (SSL_ERROR_WANT_X509_LOOKUP); 2383 } 2384 2385 if (i == 0) { 2386 if ((s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) && 2387 (S3I(s)->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2388 return (SSL_ERROR_ZERO_RETURN); 2389 } 2390 return (SSL_ERROR_SYSCALL); 2391} 2392 2393int 2394SSL_do_handshake(SSL *s) 2395{ 2396 int ret = 1; 2397 2398 if (s->internal->handshake_func == NULL) { 2399 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2400 return (-1); 2401 } 2402 2403 s->method->internal->ssl_renegotiate_check(s); 2404 2405 if (SSL_in_init(s) || SSL_in_before(s)) { 2406 ret = s->internal->handshake_func(s); 2407 } 2408 return (ret); 2409} 2410 2411/* 2412 * For the next 2 functions, SSL_clear() sets shutdown and so 2413 * one of these calls will reset it 2414 */ 2415void 2416SSL_set_accept_state(SSL *s) 2417{ 2418 s->server = 1; 2419 s->internal->shutdown = 0; 2420 S3I(s)->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2421 s->internal->handshake_func = s->method->internal->ssl_accept; 2422 ssl_clear_cipher_state(s); 2423} 2424 2425void 2426SSL_set_connect_state(SSL *s) 2427{ 2428 s->server = 0; 2429 s->internal->shutdown = 0; 2430 S3I(s)->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2431 s->internal->handshake_func = s->method->internal->ssl_connect; 2432 ssl_clear_cipher_state(s); 2433} 2434 2435int 2436ssl_undefined_function(SSL *s) 2437{ 2438 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2439 return (0); 2440} 2441 2442int 2443ssl_undefined_void_function(void) 2444{ 2445 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2446 return (0); 2447} 2448 2449int 2450ssl_undefined_const_function(const SSL *s) 2451{ 2452 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2453 return (0); 2454} 2455 2456const char * 2457ssl_version_string(int ver) 2458{ 2459 switch (ver) { 2460 case TLS1_VERSION: 2461 return (SSL_TXT_TLSV1); 2462 case TLS1_1_VERSION: 2463 return (SSL_TXT_TLSV1_1); 2464 case TLS1_2_VERSION: 2465 return (SSL_TXT_TLSV1_2); 2466 case TLS1_3_VERSION: 2467 return (SSL_TXT_TLSV1_3); 2468 case DTLS1_VERSION: 2469 return (SSL_TXT_DTLS1); 2470 case DTLS1_2_VERSION: 2471 return (SSL_TXT_DTLS1_2); 2472 default: 2473 return ("unknown"); 2474 } 2475} 2476 2477const char * 2478SSL_get_version(const SSL *s) 2479{ 2480 return ssl_version_string(s->version); 2481} 2482 2483SSL * 2484SSL_dup(SSL *s) 2485{ 2486 STACK_OF(X509_NAME) *sk; 2487 X509_NAME *xn; 2488 SSL *ret; 2489 int i; 2490 2491 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2492 goto err; 2493 2494 ret->version = s->version; 2495 ret->method = s->method; 2496 2497 if (s->session != NULL) { 2498 if (!SSL_copy_session_id(ret, s)) 2499 goto err; 2500 } else { 2501 /* 2502 * No session has been established yet, so we have to expect 2503 * that s->cert or ret->cert will be changed later -- 2504 * they should not both point to the same object, 2505 * and thus we can't use SSL_copy_session_id. 2506 */ 2507 2508 ret->method->internal->ssl_free(ret); 2509 ret->method = s->method; 2510 ret->method->internal->ssl_new(ret); 2511 2512 ssl_cert_free(ret->cert); 2513 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2514 goto err; 2515 2516 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2517 s->sid_ctx_length)) 2518 goto err; 2519 } 2520 2521 ret->internal->options = s->internal->options; 2522 ret->internal->mode = s->internal->mode; 2523 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2524 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2525 ret->internal->msg_callback = s->internal->msg_callback; 2526 ret->internal->msg_callback_arg = s->internal->msg_callback_arg; 2527 SSL_set_verify(ret, SSL_get_verify_mode(s), 2528 SSL_get_verify_callback(s)); 2529 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2530 ret->internal->generate_session_id = s->internal->generate_session_id; 2531 2532 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2533 2534 ret->internal->debug = s->internal->debug; 2535 2536 /* copy app data, a little dangerous perhaps */ 2537 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2538 &ret->internal->ex_data, &s->internal->ex_data)) 2539 goto err; 2540 2541 /* setup rbio, and wbio */ 2542 if (s->rbio != NULL) { 2543 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2544 goto err; 2545 } 2546 if (s->wbio != NULL) { 2547 if (s->wbio != s->rbio) { 2548 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2549 goto err; 2550 } else 2551 ret->wbio = ret->rbio; 2552 } 2553 ret->internal->rwstate = s->internal->rwstate; 2554 ret->internal->in_handshake = s->internal->in_handshake; 2555 ret->internal->handshake_func = s->internal->handshake_func; 2556 ret->server = s->server; 2557 ret->internal->renegotiate = s->internal->renegotiate; 2558 ret->internal->new_session = s->internal->new_session; 2559 ret->internal->quiet_shutdown = s->internal->quiet_shutdown; 2560 ret->internal->shutdown = s->internal->shutdown; 2561 /* SSL_dup does not really work at any state, though */ 2562 S3I(ret)->hs.state = S3I(s)->hs.state; 2563 ret->internal->rstate = s->internal->rstate; 2564 2565 /* 2566 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2567 * ret->init_off 2568 */ 2569 ret->internal->init_num = 0; 2570 2571 ret->internal->hit = s->internal->hit; 2572 2573 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2574 2575 if (s->cipher_list != NULL) { 2576 if ((ret->cipher_list = 2577 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2578 goto err; 2579 } 2580 if (s->internal->cipher_list_tls13 != NULL) { 2581 if ((ret->internal->cipher_list_tls13 = 2582 sk_SSL_CIPHER_dup(s->internal->cipher_list_tls13)) == NULL) 2583 goto err; 2584 } 2585 2586 /* Dup the client_CA list */ 2587 if (s->internal->client_CA != NULL) { 2588 if ((sk = sk_X509_NAME_dup(s->internal->client_CA)) == NULL) goto err; 2589 ret->internal->client_CA = sk; 2590 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2591 xn = sk_X509_NAME_value(sk, i); 2592 if (sk_X509_NAME_set(sk, i, 2593 X509_NAME_dup(xn)) == NULL) { 2594 X509_NAME_free(xn); 2595 goto err; 2596 } 2597 } 2598 } 2599 2600 return ret; 2601 err: 2602 SSL_free(ret); 2603 return NULL; 2604} 2605 2606void 2607ssl_clear_cipher_state(SSL *s) 2608{ 2609 ssl_clear_cipher_read_state(s); 2610 ssl_clear_cipher_write_state(s); 2611} 2612 2613void 2614ssl_clear_cipher_read_state(SSL *s) 2615{ 2616 tls12_record_layer_clear_read_state(s->internal->rl); 2617 tls12_record_layer_read_cipher_hash(s->internal->rl, 2618 &s->enc_read_ctx, &s->read_hash); 2619} 2620 2621void 2622ssl_clear_cipher_write_state(SSL *s) 2623{ 2624 tls12_record_layer_clear_write_state(s->internal->rl); 2625} 2626 2627/* Fix this function so that it takes an optional type parameter */ 2628X509 * 2629SSL_get_certificate(const SSL *s) 2630{ 2631 return (s->cert->key->x509); 2632} 2633 2634/* Fix this function so that it takes an optional type parameter */ 2635EVP_PKEY * 2636SSL_get_privatekey(const SSL *s) 2637{ 2638 return (s->cert->key->privatekey); 2639} 2640 2641const SSL_CIPHER * 2642SSL_get_current_cipher(const SSL *s) 2643{ 2644 if ((s->session != NULL) && (s->session->cipher != NULL)) 2645 return (s->session->cipher); 2646 return (NULL); 2647} 2648const void * 2649SSL_get_current_compression(SSL *s) 2650{ 2651 return (NULL); 2652} 2653 2654const void * 2655SSL_get_current_expansion(SSL *s) 2656{ 2657 return (NULL); 2658} 2659 2660size_t 2661SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 2662{ 2663 size_t len = sizeof(s->s3->client_random); 2664 2665 if (out == NULL) 2666 return len; 2667 2668 if (len > max_out) 2669 len = max_out; 2670 2671 memcpy(out, s->s3->client_random, len); 2672 2673 return len; 2674} 2675 2676size_t 2677SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 2678{ 2679 size_t len = sizeof(s->s3->server_random); 2680 2681 if (out == NULL) 2682 return len; 2683 2684 if (len > max_out) 2685 len = max_out; 2686 2687 memcpy(out, s->s3->server_random, len); 2688 2689 return len; 2690} 2691 2692int 2693ssl_init_wbio_buffer(SSL *s, int push) 2694{ 2695 BIO *bbio; 2696 2697 if (s->bbio == NULL) { 2698 bbio = BIO_new(BIO_f_buffer()); 2699 if (bbio == NULL) 2700 return (0); 2701 s->bbio = bbio; 2702 } else { 2703 bbio = s->bbio; 2704 if (s->bbio == s->wbio) 2705 s->wbio = BIO_pop(s->wbio); 2706 } 2707 (void)BIO_reset(bbio); 2708/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2709 if (!BIO_set_read_buffer_size(bbio, 1)) { 2710 SSLerror(s, ERR_R_BUF_LIB); 2711 return (0); 2712 } 2713 if (push) { 2714 if (s->wbio != bbio) 2715 s->wbio = BIO_push(bbio, s->wbio); 2716 } else { 2717 if (s->wbio == bbio) 2718 s->wbio = BIO_pop(bbio); 2719 } 2720 return (1); 2721} 2722 2723void 2724ssl_free_wbio_buffer(SSL *s) 2725{ 2726 if (s == NULL) 2727 return; 2728 2729 if (s->bbio == NULL) 2730 return; 2731 2732 if (s->bbio == s->wbio) { 2733 /* remove buffering */ 2734 s->wbio = BIO_pop(s->wbio); 2735 } 2736 BIO_free(s->bbio); 2737 s->bbio = NULL; 2738} 2739 2740void 2741SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 2742{ 2743 ctx->internal->quiet_shutdown = mode; 2744} 2745 2746int 2747SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2748{ 2749 return (ctx->internal->quiet_shutdown); 2750} 2751 2752void 2753SSL_set_quiet_shutdown(SSL *s, int mode) 2754{ 2755 s->internal->quiet_shutdown = mode; 2756} 2757 2758int 2759SSL_get_quiet_shutdown(const SSL *s) 2760{ 2761 return (s->internal->quiet_shutdown); 2762} 2763 2764void 2765SSL_set_shutdown(SSL *s, int mode) 2766{ 2767 s->internal->shutdown = mode; 2768} 2769 2770int 2771SSL_get_shutdown(const SSL *s) 2772{ 2773 return (s->internal->shutdown); 2774} 2775 2776int 2777SSL_version(const SSL *s) 2778{ 2779 return (s->version); 2780} 2781 2782SSL_CTX * 2783SSL_get_SSL_CTX(const SSL *ssl) 2784{ 2785 return (ssl->ctx); 2786} 2787 2788SSL_CTX * 2789SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2790{ 2791 CERT *new_cert; 2792 2793 if (ctx == NULL) 2794 ctx = ssl->initial_ctx; 2795 if (ssl->ctx == ctx) 2796 return (ssl->ctx); 2797 2798 if ((new_cert = ssl_cert_dup(ctx->internal->cert)) == NULL) 2799 return NULL; 2800 ssl_cert_free(ssl->cert); 2801 ssl->cert = new_cert; 2802 2803 SSL_CTX_up_ref(ctx); 2804 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2805 ssl->ctx = ctx; 2806 2807 return (ssl->ctx); 2808} 2809 2810int 2811SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2812{ 2813 return (X509_STORE_set_default_paths(ctx->cert_store)); 2814} 2815 2816int 2817SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2818 const char *CApath) 2819{ 2820 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 2821} 2822 2823int 2824SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 2825{ 2826 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 2827} 2828 2829void 2830SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 2831{ 2832 ssl->internal->info_callback = cb; 2833} 2834 2835void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 2836{ 2837 return (ssl->internal->info_callback); 2838} 2839 2840int 2841SSL_state(const SSL *ssl) 2842{ 2843 return (S3I(ssl)->hs.state); 2844} 2845 2846void 2847SSL_set_state(SSL *ssl, int state) 2848{ 2849 S3I(ssl)->hs.state = state; 2850} 2851 2852void 2853SSL_set_verify_result(SSL *ssl, long arg) 2854{ 2855 ssl->verify_result = arg; 2856} 2857 2858long 2859SSL_get_verify_result(const SSL *ssl) 2860{ 2861 return (ssl->verify_result); 2862} 2863 2864int 2865SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2866 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2867{ 2868 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2869 new_func, dup_func, free_func)); 2870} 2871 2872int 2873SSL_set_ex_data(SSL *s, int idx, void *arg) 2874{ 2875 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2876} 2877 2878void * 2879SSL_get_ex_data(const SSL *s, int idx) 2880{ 2881 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2882} 2883 2884int 2885SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2886 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2887{ 2888 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2889 new_func, dup_func, free_func)); 2890} 2891 2892int 2893SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 2894{ 2895 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2896} 2897 2898void * 2899SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 2900{ 2901 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2902} 2903 2904int 2905ssl_ok(SSL *s) 2906{ 2907 return (1); 2908} 2909 2910X509_STORE * 2911SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2912{ 2913 return (ctx->cert_store); 2914} 2915 2916void 2917SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 2918{ 2919 X509_STORE_free(ctx->cert_store); 2920 ctx->cert_store = store; 2921} 2922 2923X509 * 2924SSL_CTX_get0_certificate(const SSL_CTX *ctx) 2925{ 2926 if (ctx->internal->cert == NULL) 2927 return NULL; 2928 2929 return ctx->internal->cert->key->x509; 2930} 2931 2932int 2933SSL_want(const SSL *s) 2934{ 2935 return (s->internal->rwstate); 2936} 2937 2938void 2939SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 2940 int keylength)) 2941{ 2942 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2943} 2944 2945void 2946SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 2947 int keylength)) 2948{ 2949 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2950} 2951 2952void 2953SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 2954 int keylength)) 2955{ 2956 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2957} 2958 2959void 2960SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 2961 int keylength)) 2962{ 2963 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2964} 2965 2966void 2967SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 2968 int is_export, int keylength)) 2969{ 2970 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 2971 (void (*)(void))ecdh); 2972} 2973 2974void 2975SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 2976 int keylength)) 2977{ 2978 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2979} 2980 2981 2982void 2983SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 2984 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2985{ 2986 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 2987 (void (*)(void))cb); 2988} 2989 2990void 2991SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 2992 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2993{ 2994 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2995} 2996 2997void 2998SSL_set_debug(SSL *s, int debug) 2999{ 3000 s->internal->debug = debug; 3001} 3002 3003int 3004SSL_cache_hit(SSL *s) 3005{ 3006 return (s->internal->hit); 3007} 3008 3009int 3010SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 3011{ 3012 return ctx->internal->min_proto_version; 3013} 3014 3015int 3016SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 3017{ 3018 return ssl_version_set_min(ctx->method, version, 3019 ctx->internal->max_tls_version, &ctx->internal->min_tls_version, 3020 &ctx->internal->min_proto_version); 3021} 3022 3023int 3024SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 3025{ 3026 return ctx->internal->max_proto_version; 3027} 3028 3029int 3030SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 3031{ 3032 return ssl_version_set_max(ctx->method, version, 3033 ctx->internal->min_tls_version, &ctx->internal->max_tls_version, 3034 &ctx->internal->max_proto_version); 3035} 3036 3037int 3038SSL_get_min_proto_version(SSL *ssl) 3039{ 3040 return ssl->internal->min_proto_version; 3041} 3042 3043int 3044SSL_set_min_proto_version(SSL *ssl, uint16_t version) 3045{ 3046 return ssl_version_set_min(ssl->method, version, 3047 ssl->internal->max_tls_version, &ssl->internal->min_tls_version, 3048 &ssl->internal->min_proto_version); 3049} 3050int 3051SSL_get_max_proto_version(SSL *ssl) 3052{ 3053 return ssl->internal->max_proto_version; 3054} 3055 3056int 3057SSL_set_max_proto_version(SSL *ssl, uint16_t version) 3058{ 3059 return ssl_version_set_max(ssl->method, version, 3060 ssl->internal->min_tls_version, &ssl->internal->max_tls_version, 3061 &ssl->internal->max_proto_version); 3062} 3063 3064static int 3065ssl_cipher_id_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 3066{ 3067 SSL_CIPHER const *a = a_; 3068 SSL_CIPHER const *b = b_; 3069 return ssl_cipher_id_cmp(a, b); 3070} 3071 3072SSL_CIPHER * 3073OBJ_bsearch_ssl_cipher_id(SSL_CIPHER *key, SSL_CIPHER const *base, int num) 3074{ 3075 return (SSL_CIPHER *)OBJ_bsearch_(key, base, num, sizeof(SSL_CIPHER), 3076 ssl_cipher_id_cmp_BSEARCH_CMP_FN); 3077} 3078