ssl_lib.c revision 1.244
1/* $OpenBSD: ssl_lib.c,v 1.244 2021/01/28 17:00:38 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 ssl3_release_init_buffer(s); 200 201 ssl_clear_cipher_state(s); 202 203 s->internal->first_packet = 0; 204 205 /* 206 * Check to see if we were changed into a different method, if 207 * so, revert back if we are not doing session-id reuse. 208 */ 209 if (!s->internal->in_handshake && (s->session == NULL) && 210 (s->method != s->ctx->method)) { 211 s->method->internal->ssl_free(s); 212 s->method = s->ctx->method; 213 if (!s->method->internal->ssl_new(s)) 214 return (0); 215 } else 216 s->method->internal->ssl_clear(s); 217 218 return (1); 219} 220 221/* Used to change an SSL_CTXs default SSL method type */ 222int 223SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 224{ 225 STACK_OF(SSL_CIPHER) *ciphers; 226 227 ctx->method = meth; 228 229 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 230 ctx->internal->cipher_list_tls13, SSL_DEFAULT_CIPHER_LIST); 231 if (ciphers == NULL || sk_SSL_CIPHER_num(ciphers) <= 0) { 232 SSLerrorx(SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 233 return (0); 234 } 235 return (1); 236} 237 238SSL * 239SSL_new(SSL_CTX *ctx) 240{ 241 SSL *s; 242 243 if (ctx == NULL) { 244 SSLerrorx(SSL_R_NULL_SSL_CTX); 245 return (NULL); 246 } 247 if (ctx->method == NULL) { 248 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 249 return (NULL); 250 } 251 252 if ((s = calloc(1, sizeof(*s))) == NULL) 253 goto err; 254 if ((s->internal = calloc(1, sizeof(*s->internal))) == NULL) 255 goto err; 256 257 s->internal->min_version = ctx->internal->min_version; 258 s->internal->max_version = ctx->internal->max_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)->tmp.finish_md_len; 727 if (count > ret) 728 count = ret; 729 memcpy(buf, S3I(s)->tmp.finish_md, 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)->tmp.peer_finish_md_len; 740 if (count > ret) 741 count = ret; 742 memcpy(buf, S3I(s)->tmp.peer_finish_md, 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_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_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 (s->version == DTLS1_VERSION) 1372 return 0; 1373 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1374 return 0; 1375 1376 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1377 cipher = sk_SSL_CIPHER_value(ciphers, i); 1378 1379 alg_k = cipher->algorithm_mkey; 1380 alg_a = cipher->algorithm_auth; 1381 1382 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1383 return 1; 1384 } 1385 1386 return 0; 1387} 1388 1389/* The old interface to get the same thing as SSL_get_ciphers(). */ 1390const char * 1391SSL_get_cipher_list(const SSL *s, int n) 1392{ 1393 STACK_OF(SSL_CIPHER) *ciphers; 1394 const SSL_CIPHER *cipher; 1395 1396 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1397 return (NULL); 1398 if ((cipher = sk_SSL_CIPHER_value(ciphers, n)) == NULL) 1399 return (NULL); 1400 1401 return (cipher->name); 1402} 1403 1404STACK_OF(SSL_CIPHER) * 1405SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1406{ 1407 if (ctx == NULL) 1408 return NULL; 1409 return ctx->cipher_list; 1410} 1411 1412/* Specify the ciphers to be used by default by the SSL_CTX. */ 1413int 1414SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1415{ 1416 STACK_OF(SSL_CIPHER) *ciphers; 1417 1418 /* 1419 * ssl_create_cipher_list may return an empty stack if it was unable to 1420 * find a cipher matching the given rule string (for example if the 1421 * rule string specifies a cipher which has been disabled). This is not 1422 * an error as far as ssl_create_cipher_list is concerned, and hence 1423 * ctx->cipher_list has been updated. 1424 */ 1425 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1426 ctx->internal->cipher_list_tls13, str); 1427 if (ciphers == NULL) { 1428 return (0); 1429 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1430 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1431 return (0); 1432 } 1433 return (1); 1434} 1435 1436int 1437SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str) 1438{ 1439 if (!ssl_parse_ciphersuites(&ctx->internal->cipher_list_tls13, str)) { 1440 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1441 return 0; 1442 } 1443 if (!ssl_merge_cipherlists(ctx->cipher_list, 1444 ctx->internal->cipher_list_tls13, &ctx->cipher_list)) 1445 return 0; 1446 1447 return 1; 1448} 1449 1450/* Specify the ciphers to be used by the SSL. */ 1451int 1452SSL_set_cipher_list(SSL *s, const char *str) 1453{ 1454 STACK_OF(SSL_CIPHER) *ciphers, *ciphers_tls13; 1455 1456 if ((ciphers_tls13 = s->internal->cipher_list_tls13) == NULL) 1457 ciphers_tls13 = s->ctx->internal->cipher_list_tls13; 1458 1459 /* See comment in SSL_CTX_set_cipher_list. */ 1460 ciphers = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1461 ciphers_tls13, str); 1462 if (ciphers == NULL) { 1463 return (0); 1464 } else if (sk_SSL_CIPHER_num(ciphers) == 0) { 1465 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1466 return (0); 1467 } 1468 return (1); 1469} 1470 1471int 1472SSL_set_ciphersuites(SSL *s, const char *str) 1473{ 1474 STACK_OF(SSL_CIPHER) *ciphers; 1475 1476 if ((ciphers = s->cipher_list) == NULL) 1477 ciphers = s->ctx->cipher_list; 1478 1479 if (!ssl_parse_ciphersuites(&s->internal->cipher_list_tls13, str)) { 1480 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1481 return (0); 1482 } 1483 if (!ssl_merge_cipherlists(ciphers, s->internal->cipher_list_tls13, 1484 &s->cipher_list)) 1485 return 0; 1486 1487 return 1; 1488} 1489 1490char * 1491SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1492{ 1493 STACK_OF(SSL_CIPHER) *client_ciphers, *server_ciphers; 1494 const SSL_CIPHER *cipher; 1495 size_t curlen = 0; 1496 char *end; 1497 int i; 1498 1499 if (!s->server || s->session == NULL || len < 2) 1500 return NULL; 1501 1502 if ((client_ciphers = s->session->ciphers) == NULL) 1503 return NULL; 1504 if ((server_ciphers = SSL_get_ciphers(s)) == NULL) 1505 return NULL; 1506 if (sk_SSL_CIPHER_num(client_ciphers) == 0 || 1507 sk_SSL_CIPHER_num(server_ciphers) == 0) 1508 return NULL; 1509 1510 buf[0] = '\0'; 1511 for (i = 0; i < sk_SSL_CIPHER_num(client_ciphers); i++) { 1512 cipher = sk_SSL_CIPHER_value(client_ciphers, i); 1513 1514 if (sk_SSL_CIPHER_find(server_ciphers, cipher) < 0) 1515 continue; 1516 1517 end = buf + curlen; 1518 if (strlcat(buf, cipher->name, len) >= len || 1519 (curlen = strlcat(buf, ":", len)) >= len) { 1520 /* remove truncated cipher from list */ 1521 *end = '\0'; 1522 break; 1523 } 1524 } 1525 /* remove trailing colon */ 1526 if ((end = strrchr(buf, ':')) != NULL) 1527 *end = '\0'; 1528 return buf; 1529} 1530 1531/* 1532 * Return a servername extension value if provided in Client Hello, or NULL. 1533 * So far, only host_name types are defined (RFC 3546). 1534 */ 1535const char * 1536SSL_get_servername(const SSL *s, const int type) 1537{ 1538 if (type != TLSEXT_NAMETYPE_host_name) 1539 return (NULL); 1540 1541 return (s->session && !s->tlsext_hostname ? 1542 s->session->tlsext_hostname : 1543 s->tlsext_hostname); 1544} 1545 1546int 1547SSL_get_servername_type(const SSL *s) 1548{ 1549 if (s->session && 1550 (!s->tlsext_hostname ? 1551 s->session->tlsext_hostname : s->tlsext_hostname)) 1552 return (TLSEXT_NAMETYPE_host_name); 1553 return (-1); 1554} 1555 1556/* 1557 * SSL_select_next_proto implements standard protocol selection. It is 1558 * expected that this function is called from the callback set by 1559 * SSL_CTX_set_alpn_select_cb. 1560 * 1561 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1562 * strings. The length byte itself is not included in the length. A byte 1563 * string of length 0 is invalid. No byte string may be truncated. 1564 * 1565 * It returns either: 1566 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1567 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1568 */ 1569int 1570SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1571 const unsigned char *server, unsigned int server_len, 1572 const unsigned char *client, unsigned int client_len) 1573{ 1574 unsigned int i, j; 1575 const unsigned char *result; 1576 int status = OPENSSL_NPN_UNSUPPORTED; 1577 1578 /* 1579 * For each protocol in server preference order, 1580 * see if we support it. 1581 */ 1582 for (i = 0; i < server_len; ) { 1583 for (j = 0; j < client_len; ) { 1584 if (server[i] == client[j] && 1585 memcmp(&server[i + 1], 1586 &client[j + 1], server[i]) == 0) { 1587 /* We found a match */ 1588 result = &server[i]; 1589 status = OPENSSL_NPN_NEGOTIATED; 1590 goto found; 1591 } 1592 j += client[j]; 1593 j++; 1594 } 1595 i += server[i]; 1596 i++; 1597 } 1598 1599 /* There's no overlap between our protocols and the server's list. */ 1600 result = client; 1601 status = OPENSSL_NPN_NO_OVERLAP; 1602 1603found: 1604 *out = (unsigned char *) result + 1; 1605 *outlen = result[0]; 1606 return (status); 1607} 1608 1609/* SSL_get0_next_proto_negotiated is deprecated. */ 1610void 1611SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1612 unsigned int *len) 1613{ 1614 *data = NULL; 1615 *len = 0; 1616} 1617 1618/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1619void 1620SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1621 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1622{ 1623} 1624 1625/* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1626void 1627SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1628 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1629 unsigned int inlen, void *arg), void *arg) 1630{ 1631} 1632 1633/* 1634 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1635 * protocols, which must be in wire-format (i.e. a series of non-empty, 1636 * 8-bit length-prefixed strings). Returns 0 on success. 1637 */ 1638int 1639SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1640 unsigned int protos_len) 1641{ 1642 int failed = 1; 1643 1644 if (protos == NULL || protos_len == 0) 1645 goto err; 1646 1647 free(ctx->internal->alpn_client_proto_list); 1648 ctx->internal->alpn_client_proto_list = NULL; 1649 ctx->internal->alpn_client_proto_list_len = 0; 1650 1651 if ((ctx->internal->alpn_client_proto_list = malloc(protos_len)) 1652 == NULL) 1653 goto err; 1654 ctx->internal->alpn_client_proto_list_len = protos_len; 1655 1656 memcpy(ctx->internal->alpn_client_proto_list, protos, protos_len); 1657 1658 failed = 0; 1659 1660 err: 1661 /* NOTE: Return values are the reverse of what you expect. */ 1662 return (failed); 1663} 1664 1665/* 1666 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1667 * protocols, which must be in wire-format (i.e. a series of non-empty, 1668 * 8-bit length-prefixed strings). Returns 0 on success. 1669 */ 1670int 1671SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1672 unsigned int protos_len) 1673{ 1674 int failed = 1; 1675 1676 if (protos == NULL || protos_len == 0) 1677 goto err; 1678 1679 free(ssl->internal->alpn_client_proto_list); 1680 ssl->internal->alpn_client_proto_list = NULL; 1681 ssl->internal->alpn_client_proto_list_len = 0; 1682 1683 if ((ssl->internal->alpn_client_proto_list = malloc(protos_len)) 1684 == NULL) 1685 goto err; 1686 ssl->internal->alpn_client_proto_list_len = protos_len; 1687 1688 memcpy(ssl->internal->alpn_client_proto_list, protos, protos_len); 1689 1690 failed = 0; 1691 1692 err: 1693 /* NOTE: Return values are the reverse of what you expect. */ 1694 return (failed); 1695} 1696 1697/* 1698 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1699 * ClientHello processing in order to select an ALPN protocol from the 1700 * client's list of offered protocols. 1701 */ 1702void 1703SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1704 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1705 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1706{ 1707 ctx->internal->alpn_select_cb = cb; 1708 ctx->internal->alpn_select_cb_arg = arg; 1709} 1710 1711/* 1712 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1713 * it sets data to point to len bytes of protocol name (not including the 1714 * leading length-prefix byte). If the server didn't respond with* a negotiated 1715 * protocol then len will be zero. 1716 */ 1717void 1718SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1719 unsigned int *len) 1720{ 1721 *data = NULL; 1722 *len = 0; 1723 1724 *data = ssl->s3->internal->alpn_selected; 1725 *len = ssl->s3->internal->alpn_selected_len; 1726} 1727 1728int 1729SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1730 const char *label, size_t llen, const unsigned char *p, size_t plen, 1731 int use_context) 1732{ 1733 if (s->internal->tls13 != NULL && s->version == TLS1_3_VERSION) { 1734 if (!use_context) { 1735 p = NULL; 1736 plen = 0; 1737 } 1738 return tls13_exporter(s->internal->tls13, label, llen, p, plen, 1739 out, olen); 1740 } 1741 1742 return (tls1_export_keying_material(s, out, olen, label, llen, p, plen, 1743 use_context)); 1744} 1745 1746static unsigned long 1747ssl_session_hash(const SSL_SESSION *a) 1748{ 1749 unsigned long l; 1750 1751 l = (unsigned long) 1752 ((unsigned int) a->session_id[0] )| 1753 ((unsigned int) a->session_id[1]<< 8L)| 1754 ((unsigned long)a->session_id[2]<<16L)| 1755 ((unsigned long)a->session_id[3]<<24L); 1756 return (l); 1757} 1758 1759/* 1760 * NB: If this function (or indeed the hash function which uses a sort of 1761 * coarser function than this one) is changed, ensure 1762 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1763 * able to construct an SSL_SESSION that will collide with any existing session 1764 * with a matching session ID. 1765 */ 1766static int 1767ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 1768{ 1769 if (a->ssl_version != b->ssl_version) 1770 return (1); 1771 if (a->session_id_length != b->session_id_length) 1772 return (1); 1773 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 1774 return (1); 1775 return (0); 1776} 1777 1778/* 1779 * These wrapper functions should remain rather than redeclaring 1780 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1781 * variable. The reason is that the functions aren't static, they're exposed via 1782 * ssl.h. 1783 */ 1784static unsigned long 1785ssl_session_LHASH_HASH(const void *arg) 1786{ 1787 const SSL_SESSION *a = arg; 1788 1789 return ssl_session_hash(a); 1790} 1791 1792static int 1793ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 1794{ 1795 const SSL_SESSION *a = arg1; 1796 const SSL_SESSION *b = arg2; 1797 1798 return ssl_session_cmp(a, b); 1799} 1800 1801SSL_CTX * 1802SSL_CTX_new(const SSL_METHOD *meth) 1803{ 1804 SSL_CTX *ret; 1805 1806 if (!OPENSSL_init_ssl(0, NULL)) { 1807 SSLerrorx(SSL_R_LIBRARY_BUG); 1808 return (NULL); 1809 } 1810 1811 if (meth == NULL) { 1812 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 1813 return (NULL); 1814 } 1815 1816 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 1817 SSLerrorx(ERR_R_MALLOC_FAILURE); 1818 return (NULL); 1819 } 1820 if ((ret->internal = calloc(1, sizeof(*ret->internal))) == NULL) { 1821 free(ret); 1822 SSLerrorx(ERR_R_MALLOC_FAILURE); 1823 return (NULL); 1824 } 1825 1826 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 1827 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1828 goto err; 1829 } 1830 1831 ret->method = meth; 1832 ret->internal->min_version = meth->internal->min_version; 1833 ret->internal->max_version = meth->internal->max_version; 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); 1943err: 1944 SSLerrorx(ERR_R_MALLOC_FAILURE); 1945err2: 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.new_cipher->algorithm_auth; 2113 alg_k = S3I(s)->hs.new_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.new_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.new_cipher); 2152 2153 alg_a = S3I(s)->hs.new_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.new_cipher->algorithm_auth & SSL_aNULL) { 2213 keylen = 1024; 2214 if (S3I(s)->hs.new_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 DTLS1_VERSION: 2461 return (SSL_TXT_DTLS1); 2462 case TLS1_VERSION: 2463 return (SSL_TXT_TLSV1); 2464 case TLS1_1_VERSION: 2465 return (SSL_TXT_TLSV1_1); 2466 case TLS1_2_VERSION: 2467 return (SSL_TXT_TLSV1_2); 2468 case TLS1_3_VERSION: 2469 return (SSL_TXT_TLSV1_3); 2470 default: 2471 return ("unknown"); 2472 } 2473} 2474 2475const char * 2476SSL_get_version(const SSL *s) 2477{ 2478 return ssl_version_string(s->version); 2479} 2480 2481SSL * 2482SSL_dup(SSL *s) 2483{ 2484 STACK_OF(X509_NAME) *sk; 2485 X509_NAME *xn; 2486 SSL *ret; 2487 int i; 2488 2489 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2490 goto err; 2491 2492 ret->version = s->version; 2493 ret->internal->type = s->internal->type; 2494 ret->method = s->method; 2495 2496 if (s->session != NULL) { 2497 if (!SSL_copy_session_id(ret, s)) 2498 goto err; 2499 } else { 2500 /* 2501 * No session has been established yet, so we have to expect 2502 * that s->cert or ret->cert will be changed later -- 2503 * they should not both point to the same object, 2504 * and thus we can't use SSL_copy_session_id. 2505 */ 2506 2507 ret->method->internal->ssl_free(ret); 2508 ret->method = s->method; 2509 ret->method->internal->ssl_new(ret); 2510 2511 ssl_cert_free(ret->cert); 2512 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2513 goto err; 2514 2515 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2516 s->sid_ctx_length)) 2517 goto err; 2518 } 2519 2520 ret->internal->options = s->internal->options; 2521 ret->internal->mode = s->internal->mode; 2522 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2523 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2524 ret->internal->msg_callback = s->internal->msg_callback; 2525 ret->internal->msg_callback_arg = s->internal->msg_callback_arg; 2526 SSL_set_verify(ret, SSL_get_verify_mode(s), 2527 SSL_get_verify_callback(s)); 2528 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2529 ret->internal->generate_session_id = s->internal->generate_session_id; 2530 2531 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2532 2533 ret->internal->debug = s->internal->debug; 2534 2535 /* copy app data, a little dangerous perhaps */ 2536 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2537 &ret->internal->ex_data, &s->internal->ex_data)) 2538 goto err; 2539 2540 /* setup rbio, and wbio */ 2541 if (s->rbio != NULL) { 2542 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2543 goto err; 2544 } 2545 if (s->wbio != NULL) { 2546 if (s->wbio != s->rbio) { 2547 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2548 goto err; 2549 } else 2550 ret->wbio = ret->rbio; 2551 } 2552 ret->internal->rwstate = s->internal->rwstate; 2553 ret->internal->in_handshake = s->internal->in_handshake; 2554 ret->internal->handshake_func = s->internal->handshake_func; 2555 ret->server = s->server; 2556 ret->internal->renegotiate = s->internal->renegotiate; 2557 ret->internal->new_session = s->internal->new_session; 2558 ret->internal->quiet_shutdown = s->internal->quiet_shutdown; 2559 ret->internal->shutdown = s->internal->shutdown; 2560 /* SSL_dup does not really work at any state, though */ 2561 S3I(ret)->hs.state = S3I(s)->hs.state; 2562 ret->internal->rstate = s->internal->rstate; 2563 2564 /* 2565 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2566 * ret->init_off 2567 */ 2568 ret->internal->init_num = 0; 2569 2570 ret->internal->hit = s->internal->hit; 2571 2572 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2573 2574 if (s->cipher_list != NULL) { 2575 if ((ret->cipher_list = 2576 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2577 goto err; 2578 } 2579 if (s->internal->cipher_list_tls13 != NULL) { 2580 if ((ret->internal->cipher_list_tls13 = 2581 sk_SSL_CIPHER_dup(s->internal->cipher_list_tls13)) == NULL) 2582 goto err; 2583 } 2584 2585 /* Dup the client_CA list */ 2586 if (s->internal->client_CA != NULL) { 2587 if ((sk = sk_X509_NAME_dup(s->internal->client_CA)) == NULL) goto err; 2588 ret->internal->client_CA = sk; 2589 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2590 xn = sk_X509_NAME_value(sk, i); 2591 if (sk_X509_NAME_set(sk, i, 2592 X509_NAME_dup(xn)) == NULL) { 2593 X509_NAME_free(xn); 2594 goto err; 2595 } 2596 } 2597 } 2598 2599 return ret; 2600 err: 2601 SSL_free(ret); 2602 return NULL; 2603} 2604 2605void 2606ssl_clear_cipher_state(SSL *s) 2607{ 2608 ssl_clear_cipher_read_state(s); 2609 ssl_clear_cipher_write_state(s); 2610} 2611 2612void 2613ssl_clear_cipher_read_state(SSL *s) 2614{ 2615 EVP_CIPHER_CTX_free(s->enc_read_ctx); 2616 s->enc_read_ctx = NULL; 2617 EVP_MD_CTX_free(s->read_hash); 2618 s->read_hash = NULL; 2619 2620 tls12_record_layer_clear_read_state(s->internal->rl); 2621} 2622 2623void 2624ssl_clear_cipher_write_state(SSL *s) 2625{ 2626 EVP_CIPHER_CTX_free(s->internal->enc_write_ctx); 2627 s->internal->enc_write_ctx = NULL; 2628 EVP_MD_CTX_free(s->internal->write_hash); 2629 s->internal->write_hash = NULL; 2630 2631 tls12_record_layer_clear_write_state(s->internal->rl); 2632} 2633 2634/* Fix this function so that it takes an optional type parameter */ 2635X509 * 2636SSL_get_certificate(const SSL *s) 2637{ 2638 return (s->cert->key->x509); 2639} 2640 2641/* Fix this function so that it takes an optional type parameter */ 2642EVP_PKEY * 2643SSL_get_privatekey(const SSL *s) 2644{ 2645 return (s->cert->key->privatekey); 2646} 2647 2648const SSL_CIPHER * 2649SSL_get_current_cipher(const SSL *s) 2650{ 2651 if ((s->session != NULL) && (s->session->cipher != NULL)) 2652 return (s->session->cipher); 2653 return (NULL); 2654} 2655const void * 2656SSL_get_current_compression(SSL *s) 2657{ 2658 return (NULL); 2659} 2660 2661const void * 2662SSL_get_current_expansion(SSL *s) 2663{ 2664 return (NULL); 2665} 2666 2667size_t 2668SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 2669{ 2670 size_t len = sizeof(s->s3->client_random); 2671 2672 if (out == NULL) 2673 return len; 2674 2675 if (len > max_out) 2676 len = max_out; 2677 2678 memcpy(out, s->s3->client_random, len); 2679 2680 return len; 2681} 2682 2683size_t 2684SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 2685{ 2686 size_t len = sizeof(s->s3->server_random); 2687 2688 if (out == NULL) 2689 return len; 2690 2691 if (len > max_out) 2692 len = max_out; 2693 2694 memcpy(out, s->s3->server_random, len); 2695 2696 return len; 2697} 2698 2699int 2700ssl_init_wbio_buffer(SSL *s, int push) 2701{ 2702 BIO *bbio; 2703 2704 if (s->bbio == NULL) { 2705 bbio = BIO_new(BIO_f_buffer()); 2706 if (bbio == NULL) 2707 return (0); 2708 s->bbio = bbio; 2709 } else { 2710 bbio = s->bbio; 2711 if (s->bbio == s->wbio) 2712 s->wbio = BIO_pop(s->wbio); 2713 } 2714 (void)BIO_reset(bbio); 2715/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2716 if (!BIO_set_read_buffer_size(bbio, 1)) { 2717 SSLerror(s, ERR_R_BUF_LIB); 2718 return (0); 2719 } 2720 if (push) { 2721 if (s->wbio != bbio) 2722 s->wbio = BIO_push(bbio, s->wbio); 2723 } else { 2724 if (s->wbio == bbio) 2725 s->wbio = BIO_pop(bbio); 2726 } 2727 return (1); 2728} 2729 2730void 2731ssl_free_wbio_buffer(SSL *s) 2732{ 2733 if (s == NULL) 2734 return; 2735 2736 if (s->bbio == NULL) 2737 return; 2738 2739 if (s->bbio == s->wbio) { 2740 /* remove buffering */ 2741 s->wbio = BIO_pop(s->wbio); 2742 } 2743 BIO_free(s->bbio); 2744 s->bbio = NULL; 2745} 2746 2747void 2748SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 2749{ 2750 ctx->internal->quiet_shutdown = mode; 2751} 2752 2753int 2754SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2755{ 2756 return (ctx->internal->quiet_shutdown); 2757} 2758 2759void 2760SSL_set_quiet_shutdown(SSL *s, int mode) 2761{ 2762 s->internal->quiet_shutdown = mode; 2763} 2764 2765int 2766SSL_get_quiet_shutdown(const SSL *s) 2767{ 2768 return (s->internal->quiet_shutdown); 2769} 2770 2771void 2772SSL_set_shutdown(SSL *s, int mode) 2773{ 2774 s->internal->shutdown = mode; 2775} 2776 2777int 2778SSL_get_shutdown(const SSL *s) 2779{ 2780 return (s->internal->shutdown); 2781} 2782 2783int 2784SSL_version(const SSL *s) 2785{ 2786 return (s->version); 2787} 2788 2789SSL_CTX * 2790SSL_get_SSL_CTX(const SSL *ssl) 2791{ 2792 return (ssl->ctx); 2793} 2794 2795SSL_CTX * 2796SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2797{ 2798 CERT *new_cert; 2799 2800 if (ctx == NULL) 2801 ctx = ssl->initial_ctx; 2802 if (ssl->ctx == ctx) 2803 return (ssl->ctx); 2804 2805 if ((new_cert = ssl_cert_dup(ctx->internal->cert)) == NULL) 2806 return NULL; 2807 ssl_cert_free(ssl->cert); 2808 ssl->cert = new_cert; 2809 2810 SSL_CTX_up_ref(ctx); 2811 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2812 ssl->ctx = ctx; 2813 2814 return (ssl->ctx); 2815} 2816 2817int 2818SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2819{ 2820 return (X509_STORE_set_default_paths(ctx->cert_store)); 2821} 2822 2823int 2824SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2825 const char *CApath) 2826{ 2827 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 2828} 2829 2830int 2831SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 2832{ 2833 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 2834} 2835 2836void 2837SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 2838{ 2839 ssl->internal->info_callback = cb; 2840} 2841 2842void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 2843{ 2844 return (ssl->internal->info_callback); 2845} 2846 2847int 2848SSL_state(const SSL *ssl) 2849{ 2850 return (S3I(ssl)->hs.state); 2851} 2852 2853void 2854SSL_set_state(SSL *ssl, int state) 2855{ 2856 S3I(ssl)->hs.state = state; 2857} 2858 2859void 2860SSL_set_verify_result(SSL *ssl, long arg) 2861{ 2862 ssl->verify_result = arg; 2863} 2864 2865long 2866SSL_get_verify_result(const SSL *ssl) 2867{ 2868 return (ssl->verify_result); 2869} 2870 2871int 2872SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2873 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2874{ 2875 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2876 new_func, dup_func, free_func)); 2877} 2878 2879int 2880SSL_set_ex_data(SSL *s, int idx, void *arg) 2881{ 2882 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2883} 2884 2885void * 2886SSL_get_ex_data(const SSL *s, int idx) 2887{ 2888 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2889} 2890 2891int 2892SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2893 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2894{ 2895 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2896 new_func, dup_func, free_func)); 2897} 2898 2899int 2900SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 2901{ 2902 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2903} 2904 2905void * 2906SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 2907{ 2908 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2909} 2910 2911int 2912ssl_ok(SSL *s) 2913{ 2914 return (1); 2915} 2916 2917X509_STORE * 2918SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2919{ 2920 return (ctx->cert_store); 2921} 2922 2923void 2924SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 2925{ 2926 X509_STORE_free(ctx->cert_store); 2927 ctx->cert_store = store; 2928} 2929 2930X509 * 2931SSL_CTX_get0_certificate(const SSL_CTX *ctx) 2932{ 2933 if (ctx->internal->cert == NULL) 2934 return NULL; 2935 2936 return ctx->internal->cert->key->x509; 2937} 2938 2939int 2940SSL_want(const SSL *s) 2941{ 2942 return (s->internal->rwstate); 2943} 2944 2945void 2946SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 2947 int keylength)) 2948{ 2949 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2950} 2951 2952void 2953SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 2954 int keylength)) 2955{ 2956 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2957} 2958 2959void 2960SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 2961 int keylength)) 2962{ 2963 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2964} 2965 2966void 2967SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 2968 int keylength)) 2969{ 2970 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2971} 2972 2973void 2974SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 2975 int is_export, int keylength)) 2976{ 2977 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 2978 (void (*)(void))ecdh); 2979} 2980 2981void 2982SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 2983 int keylength)) 2984{ 2985 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2986} 2987 2988 2989void 2990SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 2991 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2992{ 2993 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 2994 (void (*)(void))cb); 2995} 2996 2997void 2998SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 2999 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3000{ 3001 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3002} 3003 3004void 3005SSL_set_debug(SSL *s, int debug) 3006{ 3007 s->internal->debug = debug; 3008} 3009 3010int 3011SSL_cache_hit(SSL *s) 3012{ 3013 return (s->internal->hit); 3014} 3015 3016int 3017SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 3018{ 3019 return ctx->internal->min_version; 3020} 3021 3022int 3023SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 3024{ 3025 return ssl_version_set_min(ctx->method, version, 3026 ctx->internal->max_version, &ctx->internal->min_version); 3027} 3028 3029int 3030SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 3031{ 3032 return ctx->internal->max_version; 3033} 3034 3035int 3036SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 3037{ 3038 return ssl_version_set_max(ctx->method, version, 3039 ctx->internal->min_version, &ctx->internal->max_version); 3040} 3041 3042int 3043SSL_get_min_proto_version(SSL *ssl) 3044{ 3045 return ssl->internal->min_version; 3046} 3047 3048int 3049SSL_set_min_proto_version(SSL *ssl, uint16_t version) 3050{ 3051 return ssl_version_set_min(ssl->method, version, 3052 ssl->internal->max_version, &ssl->internal->min_version); 3053} 3054int 3055SSL_get_max_proto_version(SSL *ssl) 3056{ 3057 return ssl->internal->max_version; 3058} 3059 3060int 3061SSL_set_max_proto_version(SSL *ssl, uint16_t version) 3062{ 3063 return ssl_version_set_max(ssl->method, version, 3064 ssl->internal->min_version, &ssl->internal->max_version); 3065} 3066 3067static int 3068ssl_cipher_id_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 3069{ 3070 SSL_CIPHER const *a = a_; 3071 SSL_CIPHER const *b = b_; 3072 return ssl_cipher_id_cmp(a, b); 3073} 3074 3075SSL_CIPHER * 3076OBJ_bsearch_ssl_cipher_id(SSL_CIPHER *key, SSL_CIPHER const *base, int num) 3077{ 3078 return (SSL_CIPHER *)OBJ_bsearch_(key, base, num, sizeof(SSL_CIPHER), 3079 ssl_cipher_id_cmp_BSEARCH_CMP_FN); 3080} 3081