ssl_lib.c revision 1.202
1/* $OpenBSD: ssl_lib.c,v 1.202 2019/03/25 16:37:52 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 <stdio.h> 144 145#include "ssl_locl.h" 146 147#include <openssl/bn.h> 148#include <openssl/dh.h> 149#include <openssl/lhash.h> 150#include <openssl/objects.h> 151#include <openssl/ocsp.h> 152#include <openssl/x509v3.h> 153 154#ifndef OPENSSL_NO_ENGINE 155#include <openssl/engine.h> 156#endif 157 158#include "bytestring.h" 159#include "ssl_sigalgs.h" 160 161const char *SSL_version_str = OPENSSL_VERSION_TEXT; 162 163int 164SSL_clear(SSL *s) 165{ 166 if (s->method == NULL) { 167 SSLerror(s, SSL_R_NO_METHOD_SPECIFIED); 168 return (0); 169 } 170 171 if (ssl_clear_bad_session(s)) { 172 SSL_SESSION_free(s->session); 173 s->session = NULL; 174 } 175 176 s->error = 0; 177 s->internal->hit = 0; 178 s->internal->shutdown = 0; 179 180 if (s->internal->renegotiate) { 181 SSLerror(s, ERR_R_INTERNAL_ERROR); 182 return (0); 183 } 184 185 s->internal->type = 0; 186 187 s->version = s->method->internal->version; 188 s->client_version = s->version; 189 s->internal->rwstate = SSL_NOTHING; 190 s->internal->rstate = SSL_ST_READ_HEADER; 191 192 BUF_MEM_free(s->internal->init_buf); 193 s->internal->init_buf = NULL; 194 195 ssl_clear_cipher_state(s); 196 197 s->internal->first_packet = 0; 198 199 /* 200 * Check to see if we were changed into a different method, if 201 * so, revert back if we are not doing session-id reuse. 202 */ 203 if (!s->internal->in_handshake && (s->session == NULL) && 204 (s->method != s->ctx->method)) { 205 s->method->internal->ssl_free(s); 206 s->method = s->ctx->method; 207 if (!s->method->internal->ssl_new(s)) 208 return (0); 209 } else 210 s->method->internal->ssl_clear(s); 211 212 S3I(s)->hs.state = SSL_ST_BEFORE|((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT); 213 214 return (1); 215} 216 217/* Used to change an SSL_CTXs default SSL method type */ 218int 219SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 220{ 221 STACK_OF(SSL_CIPHER) *sk; 222 223 ctx->method = meth; 224 225 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), 226 &(ctx->internal->cipher_list_by_id), SSL_DEFAULT_CIPHER_LIST); 227 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { 228 SSLerrorx(SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 229 return (0); 230 } 231 return (1); 232} 233 234SSL * 235SSL_new(SSL_CTX *ctx) 236{ 237 SSL *s; 238 239 if (ctx == NULL) { 240 SSLerrorx(SSL_R_NULL_SSL_CTX); 241 return (NULL); 242 } 243 if (ctx->method == NULL) { 244 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 245 return (NULL); 246 } 247 248 if ((s = calloc(1, sizeof(*s))) == NULL) { 249 SSLerrorx(ERR_R_MALLOC_FAILURE); 250 return (NULL); 251 } 252 if ((s->internal = calloc(1, sizeof(*s->internal))) == NULL) { 253 free(s); 254 SSLerrorx(ERR_R_MALLOC_FAILURE); 255 return (NULL); 256 } 257 258 s->internal->min_version = ctx->internal->min_version; 259 s->internal->max_version = ctx->internal->max_version; 260 261 s->internal->options = ctx->internal->options; 262 s->internal->mode = ctx->internal->mode; 263 s->internal->max_cert_list = ctx->internal->max_cert_list; 264 265 if ((s->cert = ssl_cert_dup(ctx->internal->cert)) == NULL) 266 goto err; 267 268 s->internal->read_ahead = ctx->internal->read_ahead; 269 s->internal->msg_callback = ctx->internal->msg_callback; 270 s->internal->msg_callback_arg = ctx->internal->msg_callback_arg; 271 s->verify_mode = ctx->verify_mode; 272 s->sid_ctx_length = ctx->sid_ctx_length; 273 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 274 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); 275 s->internal->verify_callback = ctx->internal->default_verify_callback; 276 s->internal->generate_session_id = ctx->internal->generate_session_id; 277 278 s->param = X509_VERIFY_PARAM_new(); 279 if (!s->param) 280 goto err; 281 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 282 s->internal->quiet_shutdown = ctx->internal->quiet_shutdown; 283 s->max_send_fragment = ctx->internal->max_send_fragment; 284 285 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 286 s->ctx = ctx; 287 s->internal->tlsext_debug_cb = 0; 288 s->internal->tlsext_debug_arg = NULL; 289 s->internal->tlsext_ticket_expected = 0; 290 s->tlsext_status_type = -1; 291 s->internal->tlsext_status_expected = 0; 292 s->internal->tlsext_ocsp_ids = NULL; 293 s->internal->tlsext_ocsp_exts = NULL; 294 s->internal->tlsext_ocsp_resp = NULL; 295 s->internal->tlsext_ocsp_resplen = -1; 296 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 297 s->initial_ctx = ctx; 298 299 if (ctx->internal->tlsext_ecpointformatlist != NULL) { 300 s->internal->tlsext_ecpointformatlist = 301 calloc(ctx->internal->tlsext_ecpointformatlist_length, 302 sizeof(ctx->internal->tlsext_ecpointformatlist[0])); 303 if (s->internal->tlsext_ecpointformatlist == NULL) 304 goto err; 305 memcpy(s->internal->tlsext_ecpointformatlist, 306 ctx->internal->tlsext_ecpointformatlist, 307 ctx->internal->tlsext_ecpointformatlist_length * 308 sizeof(ctx->internal->tlsext_ecpointformatlist[0])); 309 s->internal->tlsext_ecpointformatlist_length = 310 ctx->internal->tlsext_ecpointformatlist_length; 311 } 312 if (ctx->internal->tlsext_supportedgroups != NULL) { 313 s->internal->tlsext_supportedgroups = 314 calloc(ctx->internal->tlsext_supportedgroups_length, 315 sizeof(ctx->internal->tlsext_supportedgroups[0])); 316 if (s->internal->tlsext_supportedgroups == NULL) 317 goto err; 318 memcpy(s->internal->tlsext_supportedgroups, 319 ctx->internal->tlsext_supportedgroups, 320 ctx->internal->tlsext_supportedgroups_length * 321 sizeof(ctx->internal->tlsext_supportedgroups[0])); 322 s->internal->tlsext_supportedgroups_length = 323 ctx->internal->tlsext_supportedgroups_length; 324 } 325 326 if (s->ctx->internal->alpn_client_proto_list != NULL) { 327 s->internal->alpn_client_proto_list = 328 malloc(s->ctx->internal->alpn_client_proto_list_len); 329 if (s->internal->alpn_client_proto_list == NULL) 330 goto err; 331 memcpy(s->internal->alpn_client_proto_list, 332 s->ctx->internal->alpn_client_proto_list, 333 s->ctx->internal->alpn_client_proto_list_len); 334 s->internal->alpn_client_proto_list_len = 335 s->ctx->internal->alpn_client_proto_list_len; 336 } 337 338 s->verify_result = X509_V_OK; 339 340 s->method = ctx->method; 341 342 if (!s->method->internal->ssl_new(s)) 343 goto err; 344 345 s->references = 1; 346 s->server = (ctx->method->internal->ssl_accept == ssl_undefined_function) ? 0 : 1; 347 348 SSL_clear(s); 349 350 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 351 352 return (s); 353 354 err: 355 SSL_free(s); 356 SSLerrorx(ERR_R_MALLOC_FAILURE); 357 return (NULL); 358} 359 360int 361SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 362 unsigned int sid_ctx_len) 363{ 364 if (sid_ctx_len > sizeof ctx->sid_ctx) { 365 SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 366 return (0); 367 } 368 ctx->sid_ctx_length = sid_ctx_len; 369 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 370 371 return (1); 372} 373 374int 375SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 376 unsigned int sid_ctx_len) 377{ 378 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 379 SSLerror(ssl, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 380 return (0); 381 } 382 ssl->sid_ctx_length = sid_ctx_len; 383 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 384 385 return (1); 386} 387 388int 389SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 390{ 391 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 392 ctx->internal->generate_session_id = cb; 393 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 394 return (1); 395} 396 397int 398SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 399{ 400 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 401 ssl->internal->generate_session_id = cb; 402 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 403 return (1); 404} 405 406int 407SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 408 unsigned int id_len) 409{ 410 /* 411 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 412 * shows how we can "construct" a session to give us the desired 413 * check - ie. to find if there's a session in the hash table 414 * that would conflict with any new session built out of this 415 * id/id_len and the ssl_version in use by this SSL. 416 */ 417 SSL_SESSION r, *p; 418 419 if (id_len > sizeof r.session_id) 420 return (0); 421 422 r.ssl_version = ssl->version; 423 r.session_id_length = id_len; 424 memcpy(r.session_id, id, id_len); 425 426 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 427 p = lh_SSL_SESSION_retrieve(ssl->ctx->internal->sessions, &r); 428 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 429 return (p != NULL); 430} 431 432int 433SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 434{ 435 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 436} 437 438int 439SSL_set_purpose(SSL *s, int purpose) 440{ 441 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 442} 443 444int 445SSL_CTX_set_trust(SSL_CTX *s, int trust) 446{ 447 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 448} 449 450int 451SSL_set_trust(SSL *s, int trust) 452{ 453 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 454} 455 456int 457SSL_set1_host(SSL *s, const char *hostname) 458{ 459 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); 460} 461 462X509_VERIFY_PARAM * 463SSL_CTX_get0_param(SSL_CTX *ctx) 464{ 465 return (ctx->param); 466} 467 468int 469SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 470{ 471 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 472} 473 474X509_VERIFY_PARAM * 475SSL_get0_param(SSL *ssl) 476{ 477 return (ssl->param); 478} 479 480int 481SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 482{ 483 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 484} 485 486void 487SSL_free(SSL *s) 488{ 489 int i; 490 491 if (s == NULL) 492 return; 493 494 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 495 if (i > 0) 496 return; 497 498 X509_VERIFY_PARAM_free(s->param); 499 500 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->internal->ex_data); 501 502 if (s->bbio != NULL) { 503 /* If the buffering BIO is in place, pop it off */ 504 if (s->bbio == s->wbio) { 505 s->wbio = BIO_pop(s->wbio); 506 } 507 BIO_free(s->bbio); 508 s->bbio = NULL; 509 } 510 511 if (s->rbio != s->wbio) 512 BIO_free_all(s->rbio); 513 BIO_free_all(s->wbio); 514 515 BUF_MEM_free(s->internal->init_buf); 516 517 /* add extra stuff */ 518 sk_SSL_CIPHER_free(s->cipher_list); 519 sk_SSL_CIPHER_free(s->internal->cipher_list_by_id); 520 521 /* Make the next call work :-) */ 522 if (s->session != NULL) { 523 ssl_clear_bad_session(s); 524 SSL_SESSION_free(s->session); 525 } 526 527 ssl_clear_cipher_state(s); 528 529 ssl_cert_free(s->cert); 530 531 free(s->tlsext_hostname); 532 SSL_CTX_free(s->initial_ctx); 533 534 free(s->internal->tlsext_ecpointformatlist); 535 free(s->internal->tlsext_supportedgroups); 536 537 sk_X509_EXTENSION_pop_free(s->internal->tlsext_ocsp_exts, 538 X509_EXTENSION_free); 539 sk_OCSP_RESPID_pop_free(s->internal->tlsext_ocsp_ids, OCSP_RESPID_free); 540 free(s->internal->tlsext_ocsp_resp); 541 542 sk_X509_NAME_pop_free(s->internal->client_CA, X509_NAME_free); 543 544 if (s->method != NULL) 545 s->method->internal->ssl_free(s); 546 547 SSL_CTX_free(s->ctx); 548 549 free(s->internal->alpn_client_proto_list); 550 551#ifndef OPENSSL_NO_SRTP 552 sk_SRTP_PROTECTION_PROFILE_free(s->internal->srtp_profiles); 553#endif 554 555 free(s->internal); 556 free(s); 557} 558 559int 560SSL_up_ref(SSL *s) 561{ 562 int refs = CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL); 563 return (refs > 1) ? 1 : 0; 564} 565 566void 567SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 568{ 569 /* If the output buffering BIO is still in place, remove it */ 570 if (s->bbio != NULL) { 571 if (s->wbio == s->bbio) { 572 s->wbio = s->wbio->next_bio; 573 s->bbio->next_bio = NULL; 574 } 575 } 576 577 if (s->rbio != rbio && s->rbio != s->wbio) 578 BIO_free_all(s->rbio); 579 if (s->wbio != wbio) 580 BIO_free_all(s->wbio); 581 s->rbio = rbio; 582 s->wbio = wbio; 583} 584 585BIO * 586SSL_get_rbio(const SSL *s) 587{ 588 return (s->rbio); 589} 590 591BIO * 592SSL_get_wbio(const SSL *s) 593{ 594 return (s->wbio); 595} 596 597int 598SSL_get_fd(const SSL *s) 599{ 600 return (SSL_get_rfd(s)); 601} 602 603int 604SSL_get_rfd(const SSL *s) 605{ 606 int ret = -1; 607 BIO *b, *r; 608 609 b = SSL_get_rbio(s); 610 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 611 if (r != NULL) 612 BIO_get_fd(r, &ret); 613 return (ret); 614} 615 616int 617SSL_get_wfd(const SSL *s) 618{ 619 int ret = -1; 620 BIO *b, *r; 621 622 b = SSL_get_wbio(s); 623 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 624 if (r != NULL) 625 BIO_get_fd(r, &ret); 626 return (ret); 627} 628 629int 630SSL_set_fd(SSL *s, int fd) 631{ 632 int ret = 0; 633 BIO *bio = NULL; 634 635 bio = BIO_new(BIO_s_socket()); 636 637 if (bio == NULL) { 638 SSLerror(s, ERR_R_BUF_LIB); 639 goto err; 640 } 641 BIO_set_fd(bio, fd, BIO_NOCLOSE); 642 SSL_set_bio(s, bio, bio); 643 ret = 1; 644err: 645 return (ret); 646} 647 648int 649SSL_set_wfd(SSL *s, int fd) 650{ 651 int ret = 0; 652 BIO *bio = NULL; 653 654 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 655 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 656 bio = BIO_new(BIO_s_socket()); 657 658 if (bio == NULL) { 659 SSLerror(s, ERR_R_BUF_LIB); 660 goto err; 661 } 662 BIO_set_fd(bio, fd, BIO_NOCLOSE); 663 SSL_set_bio(s, SSL_get_rbio(s), bio); 664 } else 665 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 666 ret = 1; 667err: 668 return (ret); 669} 670 671int 672SSL_set_rfd(SSL *s, int fd) 673{ 674 int ret = 0; 675 BIO *bio = NULL; 676 677 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 678 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 679 bio = BIO_new(BIO_s_socket()); 680 681 if (bio == NULL) { 682 SSLerror(s, ERR_R_BUF_LIB); 683 goto err; 684 } 685 BIO_set_fd(bio, fd, BIO_NOCLOSE); 686 SSL_set_bio(s, bio, SSL_get_wbio(s)); 687 } else 688 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 689 ret = 1; 690err: 691 return (ret); 692} 693 694 695/* return length of latest Finished message we sent, copy to 'buf' */ 696size_t 697SSL_get_finished(const SSL *s, void *buf, size_t count) 698{ 699 size_t ret = 0; 700 701 if (s->s3 != NULL) { 702 ret = S3I(s)->tmp.finish_md_len; 703 if (count > ret) 704 count = ret; 705 memcpy(buf, S3I(s)->tmp.finish_md, count); 706 } 707 return (ret); 708} 709 710/* return length of latest Finished message we expected, copy to 'buf' */ 711size_t 712SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 713{ 714 size_t ret = 0; 715 716 if (s->s3 != NULL) { 717 ret = S3I(s)->tmp.peer_finish_md_len; 718 if (count > ret) 719 count = ret; 720 memcpy(buf, S3I(s)->tmp.peer_finish_md, count); 721 } 722 return (ret); 723} 724 725 726int 727SSL_get_verify_mode(const SSL *s) 728{ 729 return (s->verify_mode); 730} 731 732int 733SSL_get_verify_depth(const SSL *s) 734{ 735 return (X509_VERIFY_PARAM_get_depth(s->param)); 736} 737 738int 739(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 740{ 741 return (s->internal->verify_callback); 742} 743 744int 745SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 746{ 747 return (ctx->verify_mode); 748} 749 750int 751SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 752{ 753 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 754} 755 756int 757(*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 758{ 759 return (ctx->internal->default_verify_callback); 760} 761 762void 763SSL_set_verify(SSL *s, int mode, 764 int (*callback)(int ok, X509_STORE_CTX *ctx)) 765{ 766 s->verify_mode = mode; 767 if (callback != NULL) 768 s->internal->verify_callback = callback; 769} 770 771void 772SSL_set_verify_depth(SSL *s, int depth) 773{ 774 X509_VERIFY_PARAM_set_depth(s->param, depth); 775} 776 777void 778SSL_set_read_ahead(SSL *s, int yes) 779{ 780 s->internal->read_ahead = yes; 781} 782 783int 784SSL_get_read_ahead(const SSL *s) 785{ 786 return (s->internal->read_ahead); 787} 788 789int 790SSL_pending(const SSL *s) 791{ 792 /* 793 * SSL_pending cannot work properly if read-ahead is enabled 794 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 795 * and it is impossible to fix since SSL_pending cannot report 796 * errors that may be observed while scanning the new data. 797 * (Note that SSL_pending() is often used as a boolean value, 798 * so we'd better not return -1.) 799 */ 800 return (ssl3_pending(s)); 801} 802 803X509 * 804SSL_get_peer_certificate(const SSL *s) 805{ 806 X509 *r; 807 808 if ((s == NULL) || (s->session == NULL)) 809 r = NULL; 810 else 811 r = s->session->peer; 812 813 if (r == NULL) 814 return (r); 815 816 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509); 817 818 return (r); 819} 820 821STACK_OF(X509) * 822SSL_get_peer_cert_chain(const SSL *s) 823{ 824 STACK_OF(X509) *r; 825 826 if ((s == NULL) || (s->session == NULL) || 827 (SSI(s)->sess_cert == NULL)) 828 r = NULL; 829 else 830 r = SSI(s)->sess_cert->cert_chain; 831 832 /* 833 * If we are a client, cert_chain includes the peer's own 834 * certificate; 835 * if we are a server, it does not. 836 */ 837 return (r); 838} 839 840/* 841 * Now in theory, since the calling process own 't' it should be safe to 842 * modify. We need to be able to read f without being hassled 843 */ 844int 845SSL_copy_session_id(SSL *t, const SSL *f) 846{ 847 CERT *tmp; 848 849 /* Do we need to do SSL locking? */ 850 if (!SSL_set_session(t, SSL_get_session(f))) 851 return 0; 852 853 /* What if we are set up for one protocol but want to talk another? */ 854 if (t->method != f->method) { 855 t->method->internal->ssl_free(t); 856 t->method = f->method; 857 if (!t->method->internal->ssl_new(t)) 858 return 0; 859 } 860 861 tmp = t->cert; 862 if (f->cert != NULL) { 863 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 864 t->cert = f->cert; 865 } else 866 t->cert = NULL; 867 ssl_cert_free(tmp); 868 869 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) 870 return 0; 871 872 return 1; 873} 874 875/* Fix this so it checks all the valid key/cert options */ 876int 877SSL_CTX_check_private_key(const SSL_CTX *ctx) 878{ 879 if ((ctx == NULL) || (ctx->internal->cert == NULL) || 880 (ctx->internal->cert->key->x509 == NULL)) { 881 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED); 882 return (0); 883 } 884 if (ctx->internal->cert->key->privatekey == NULL) { 885 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED); 886 return (0); 887 } 888 return (X509_check_private_key(ctx->internal->cert->key->x509, 889 ctx->internal->cert->key->privatekey)); 890} 891 892/* Fix this function so that it takes an optional type parameter */ 893int 894SSL_check_private_key(const SSL *ssl) 895{ 896 if (ssl == NULL) { 897 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER); 898 return (0); 899 } 900 if (ssl->cert == NULL) { 901 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 902 return (0); 903 } 904 if (ssl->cert->key->x509 == NULL) { 905 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED); 906 return (0); 907 } 908 if (ssl->cert->key->privatekey == NULL) { 909 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 910 return (0); 911 } 912 return (X509_check_private_key(ssl->cert->key->x509, 913 ssl->cert->key->privatekey)); 914} 915 916int 917SSL_accept(SSL *s) 918{ 919 if (s->internal->handshake_func == NULL) 920 SSL_set_accept_state(s); /* Not properly initialized yet */ 921 922 return (s->method->internal->ssl_accept(s)); 923} 924 925int 926SSL_connect(SSL *s) 927{ 928 if (s->internal->handshake_func == NULL) 929 SSL_set_connect_state(s); /* Not properly initialized yet */ 930 931 return (s->method->internal->ssl_connect(s)); 932} 933 934int 935SSL_is_server(const SSL *s) 936{ 937 return s->server; 938} 939 940long 941SSL_get_default_timeout(const SSL *s) 942{ 943 return (s->method->internal->get_timeout()); 944} 945 946int 947SSL_read(SSL *s, void *buf, int num) 948{ 949 if (s->internal->handshake_func == NULL) { 950 SSLerror(s, SSL_R_UNINITIALIZED); 951 return (-1); 952 } 953 954 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 955 s->internal->rwstate = SSL_NOTHING; 956 return (0); 957 } 958 return ssl3_read(s, buf, num); 959} 960 961int 962SSL_peek(SSL *s, void *buf, int num) 963{ 964 if (s->internal->handshake_func == NULL) { 965 SSLerror(s, SSL_R_UNINITIALIZED); 966 return (-1); 967 } 968 969 if (s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) { 970 return (0); 971 } 972 return ssl3_peek(s, buf, num); 973} 974 975int 976SSL_write(SSL *s, const void *buf, int num) 977{ 978 if (s->internal->handshake_func == NULL) { 979 SSLerror(s, SSL_R_UNINITIALIZED); 980 return (-1); 981 } 982 983 if (s->internal->shutdown & SSL_SENT_SHUTDOWN) { 984 s->internal->rwstate = SSL_NOTHING; 985 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN); 986 return (-1); 987 } 988 return ssl3_write(s, buf, num); 989} 990 991int 992SSL_shutdown(SSL *s) 993{ 994 /* 995 * Note that this function behaves differently from what one might 996 * expect. Return values are 0 for no success (yet), 997 * 1 for success; but calling it once is usually not enough, 998 * even if blocking I/O is used (see ssl3_shutdown). 999 */ 1000 1001 if (s->internal->handshake_func == NULL) { 1002 SSLerror(s, SSL_R_UNINITIALIZED); 1003 return (-1); 1004 } 1005 1006 if (s != NULL && !SSL_in_init(s)) 1007 return (ssl3_shutdown(s)); 1008 1009 return (1); 1010} 1011 1012int 1013SSL_renegotiate(SSL *s) 1014{ 1015 if (s->internal->renegotiate == 0) 1016 s->internal->renegotiate = 1; 1017 1018 s->internal->new_session = 1; 1019 1020 return (s->method->internal->ssl_renegotiate(s)); 1021} 1022 1023int 1024SSL_renegotiate_abbreviated(SSL *s) 1025{ 1026 if (s->internal->renegotiate == 0) 1027 s->internal->renegotiate = 1; 1028 1029 s->internal->new_session = 0; 1030 1031 return (s->method->internal->ssl_renegotiate(s)); 1032} 1033 1034int 1035SSL_renegotiate_pending(SSL *s) 1036{ 1037 /* 1038 * Becomes true when negotiation is requested; 1039 * false again once a handshake has finished. 1040 */ 1041 return (s->internal->renegotiate != 0); 1042} 1043 1044long 1045SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1046{ 1047 long l; 1048 1049 switch (cmd) { 1050 case SSL_CTRL_GET_READ_AHEAD: 1051 return (s->internal->read_ahead); 1052 case SSL_CTRL_SET_READ_AHEAD: 1053 l = s->internal->read_ahead; 1054 s->internal->read_ahead = larg; 1055 return (l); 1056 1057 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1058 s->internal->msg_callback_arg = parg; 1059 return (1); 1060 1061 case SSL_CTRL_OPTIONS: 1062 return (s->internal->options|=larg); 1063 case SSL_CTRL_CLEAR_OPTIONS: 1064 return (s->internal->options&=~larg); 1065 case SSL_CTRL_MODE: 1066 return (s->internal->mode|=larg); 1067 case SSL_CTRL_CLEAR_MODE: 1068 return (s->internal->mode &=~larg); 1069 case SSL_CTRL_GET_MAX_CERT_LIST: 1070 return (s->internal->max_cert_list); 1071 case SSL_CTRL_SET_MAX_CERT_LIST: 1072 l = s->internal->max_cert_list; 1073 s->internal->max_cert_list = larg; 1074 return (l); 1075 case SSL_CTRL_SET_MTU: 1076#ifndef OPENSSL_NO_DTLS1 1077 if (larg < (long)dtls1_min_mtu()) 1078 return (0); 1079#endif 1080 if (SSL_IS_DTLS(s)) { 1081 D1I(s)->mtu = larg; 1082 return (larg); 1083 } 1084 return (0); 1085 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1086 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1087 return (0); 1088 s->max_send_fragment = larg; 1089 return (1); 1090 case SSL_CTRL_GET_RI_SUPPORT: 1091 if (s->s3) 1092 return (S3I(s)->send_connection_binding); 1093 else return (0); 1094 default: 1095 if (SSL_IS_DTLS(s)) 1096 return dtls1_ctrl(s, cmd, larg, parg); 1097 return ssl3_ctrl(s, cmd, larg, parg); 1098 } 1099} 1100 1101long 1102SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1103{ 1104 switch (cmd) { 1105 case SSL_CTRL_SET_MSG_CALLBACK: 1106 s->internal->msg_callback = (void (*)(int write_p, int version, 1107 int content_type, const void *buf, size_t len, 1108 SSL *ssl, void *arg))(fp); 1109 return (1); 1110 1111 default: 1112 return (ssl3_callback_ctrl(s, cmd, fp)); 1113 } 1114} 1115 1116struct lhash_st_SSL_SESSION * 1117SSL_CTX_sessions(SSL_CTX *ctx) 1118{ 1119 return (ctx->internal->sessions); 1120} 1121 1122long 1123SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1124{ 1125 long l; 1126 1127 switch (cmd) { 1128 case SSL_CTRL_GET_READ_AHEAD: 1129 return (ctx->internal->read_ahead); 1130 case SSL_CTRL_SET_READ_AHEAD: 1131 l = ctx->internal->read_ahead; 1132 ctx->internal->read_ahead = larg; 1133 return (l); 1134 1135 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1136 ctx->internal->msg_callback_arg = parg; 1137 return (1); 1138 1139 case SSL_CTRL_GET_MAX_CERT_LIST: 1140 return (ctx->internal->max_cert_list); 1141 case SSL_CTRL_SET_MAX_CERT_LIST: 1142 l = ctx->internal->max_cert_list; 1143 ctx->internal->max_cert_list = larg; 1144 return (l); 1145 1146 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1147 l = ctx->internal->session_cache_size; 1148 ctx->internal->session_cache_size = larg; 1149 return (l); 1150 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1151 return (ctx->internal->session_cache_size); 1152 case SSL_CTRL_SET_SESS_CACHE_MODE: 1153 l = ctx->internal->session_cache_mode; 1154 ctx->internal->session_cache_mode = larg; 1155 return (l); 1156 case SSL_CTRL_GET_SESS_CACHE_MODE: 1157 return (ctx->internal->session_cache_mode); 1158 1159 case SSL_CTRL_SESS_NUMBER: 1160 return (lh_SSL_SESSION_num_items(ctx->internal->sessions)); 1161 case SSL_CTRL_SESS_CONNECT: 1162 return (ctx->internal->stats.sess_connect); 1163 case SSL_CTRL_SESS_CONNECT_GOOD: 1164 return (ctx->internal->stats.sess_connect_good); 1165 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1166 return (ctx->internal->stats.sess_connect_renegotiate); 1167 case SSL_CTRL_SESS_ACCEPT: 1168 return (ctx->internal->stats.sess_accept); 1169 case SSL_CTRL_SESS_ACCEPT_GOOD: 1170 return (ctx->internal->stats.sess_accept_good); 1171 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1172 return (ctx->internal->stats.sess_accept_renegotiate); 1173 case SSL_CTRL_SESS_HIT: 1174 return (ctx->internal->stats.sess_hit); 1175 case SSL_CTRL_SESS_CB_HIT: 1176 return (ctx->internal->stats.sess_cb_hit); 1177 case SSL_CTRL_SESS_MISSES: 1178 return (ctx->internal->stats.sess_miss); 1179 case SSL_CTRL_SESS_TIMEOUTS: 1180 return (ctx->internal->stats.sess_timeout); 1181 case SSL_CTRL_SESS_CACHE_FULL: 1182 return (ctx->internal->stats.sess_cache_full); 1183 case SSL_CTRL_OPTIONS: 1184 return (ctx->internal->options|=larg); 1185 case SSL_CTRL_CLEAR_OPTIONS: 1186 return (ctx->internal->options&=~larg); 1187 case SSL_CTRL_MODE: 1188 return (ctx->internal->mode|=larg); 1189 case SSL_CTRL_CLEAR_MODE: 1190 return (ctx->internal->mode&=~larg); 1191 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1192 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1193 return (0); 1194 ctx->internal->max_send_fragment = larg; 1195 return (1); 1196 default: 1197 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg)); 1198 } 1199} 1200 1201long 1202SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1203{ 1204 switch (cmd) { 1205 case SSL_CTRL_SET_MSG_CALLBACK: 1206 ctx->internal->msg_callback = (void (*)(int write_p, int version, 1207 int content_type, const void *buf, size_t len, SSL *ssl, 1208 void *arg))(fp); 1209 return (1); 1210 1211 default: 1212 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp)); 1213 } 1214} 1215 1216int 1217ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1218{ 1219 long l; 1220 1221 l = a->id - b->id; 1222 if (l == 0L) 1223 return (0); 1224 else 1225 return ((l > 0) ? 1:-1); 1226} 1227 1228int 1229ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1230 const SSL_CIPHER * const *bp) 1231{ 1232 long l; 1233 1234 l = (*ap)->id - (*bp)->id; 1235 if (l == 0L) 1236 return (0); 1237 else 1238 return ((l > 0) ? 1:-1); 1239} 1240 1241/* 1242 * Return a STACK of the ciphers available for the SSL and in order of 1243 * preference. 1244 */ 1245STACK_OF(SSL_CIPHER) * 1246SSL_get_ciphers(const SSL *s) 1247{ 1248 if (s != NULL) { 1249 if (s->cipher_list != NULL) { 1250 return (s->cipher_list); 1251 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { 1252 return (s->ctx->cipher_list); 1253 } 1254 } 1255 return (NULL); 1256} 1257 1258STACK_OF(SSL_CIPHER) * 1259SSL_get_client_ciphers(const SSL *s) 1260{ 1261 if (s == NULL || s->session == NULL || !s->server) 1262 return NULL; 1263 return s->session->ciphers; 1264} 1265 1266STACK_OF(SSL_CIPHER) * 1267SSL_get1_supported_ciphers(SSL *s) 1268{ 1269 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers; 1270 const SSL_CIPHER *cipher; 1271 uint16_t min_vers, max_vers; 1272 int i; 1273 1274 if (s == NULL) 1275 return NULL; 1276 if (!ssl_supported_version_range(s, &min_vers, &max_vers)) 1277 return NULL; 1278 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1279 return NULL; 1280 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL) 1281 return NULL; 1282 1283 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1284 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL) 1285 goto err; 1286 if (!ssl_cipher_is_permitted(cipher, min_vers, max_vers)) 1287 continue; 1288 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher)) 1289 goto err; 1290 } 1291 1292 if (sk_SSL_CIPHER_num(supported_ciphers) > 0) 1293 return supported_ciphers; 1294 1295 err: 1296 sk_SSL_CIPHER_free(supported_ciphers); 1297 return NULL; 1298} 1299 1300/* 1301 * Return a STACK of the ciphers available for the SSL and in order of 1302 * algorithm id. 1303 */ 1304STACK_OF(SSL_CIPHER) * 1305ssl_get_ciphers_by_id(SSL *s) 1306{ 1307 if (s != NULL) { 1308 if (s->internal->cipher_list_by_id != NULL) { 1309 return (s->internal->cipher_list_by_id); 1310 } else if ((s->ctx != NULL) && 1311 (s->ctx->internal->cipher_list_by_id != NULL)) { 1312 return (s->ctx->internal->cipher_list_by_id); 1313 } 1314 } 1315 return (NULL); 1316} 1317 1318/* See if we have any ECC cipher suites. */ 1319int 1320ssl_has_ecc_ciphers(SSL *s) 1321{ 1322 STACK_OF(SSL_CIPHER) *ciphers; 1323 unsigned long alg_k, alg_a; 1324 SSL_CIPHER *cipher; 1325 int i; 1326 1327 if (s->version == DTLS1_VERSION) 1328 return 0; 1329 if ((ciphers = SSL_get_ciphers(s)) == NULL) 1330 return 0; 1331 1332 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 1333 cipher = sk_SSL_CIPHER_value(ciphers, i); 1334 1335 alg_k = cipher->algorithm_mkey; 1336 alg_a = cipher->algorithm_auth; 1337 1338 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)) 1339 return 1; 1340 } 1341 1342 return 0; 1343} 1344 1345/* The old interface to get the same thing as SSL_get_ciphers(). */ 1346const char * 1347SSL_get_cipher_list(const SSL *s, int n) 1348{ 1349 SSL_CIPHER *c; 1350 STACK_OF(SSL_CIPHER) *sk; 1351 1352 if (s == NULL) 1353 return (NULL); 1354 sk = SSL_get_ciphers(s); 1355 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1356 return (NULL); 1357 c = sk_SSL_CIPHER_value(sk, n); 1358 if (c == NULL) 1359 return (NULL); 1360 return (c->name); 1361} 1362 1363STACK_OF(SSL_CIPHER) * 1364SSL_CTX_get_ciphers(const SSL_CTX *ctx) 1365{ 1366 return ctx->cipher_list; 1367} 1368 1369/* Specify the ciphers to be used by default by the SSL_CTX. */ 1370int 1371SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1372{ 1373 STACK_OF(SSL_CIPHER) *sk; 1374 1375 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1376 &ctx->internal->cipher_list_by_id, str); 1377 /* 1378 * ssl_create_cipher_list may return an empty stack if it 1379 * was unable to find a cipher matching the given rule string 1380 * (for example if the rule string specifies a cipher which 1381 * has been disabled). This is not an error as far as 1382 * ssl_create_cipher_list is concerned, and hence 1383 * ctx->cipher_list and ctx->internal->cipher_list_by_id has been 1384 * updated. 1385 */ 1386 if (sk == NULL) 1387 return (0); 1388 else if (sk_SSL_CIPHER_num(sk) == 0) { 1389 SSLerrorx(SSL_R_NO_CIPHER_MATCH); 1390 return (0); 1391 } 1392 return (1); 1393} 1394 1395/* Specify the ciphers to be used by the SSL. */ 1396int 1397SSL_set_cipher_list(SSL *s, const char *str) 1398{ 1399 STACK_OF(SSL_CIPHER) *sk; 1400 1401 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1402 &s->internal->cipher_list_by_id, str); 1403 /* see comment in SSL_CTX_set_cipher_list */ 1404 if (sk == NULL) 1405 return (0); 1406 else if (sk_SSL_CIPHER_num(sk) == 0) { 1407 SSLerror(s, SSL_R_NO_CIPHER_MATCH); 1408 return (0); 1409 } 1410 return (1); 1411} 1412 1413/* works well for SSLv2, not so good for SSLv3 */ 1414char * 1415SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1416{ 1417 char *end; 1418 STACK_OF(SSL_CIPHER) *sk; 1419 SSL_CIPHER *c; 1420 size_t curlen = 0; 1421 int i; 1422 1423 if (s->session == NULL || s->session->ciphers == NULL || len < 2) 1424 return (NULL); 1425 1426 sk = s->session->ciphers; 1427 if (sk_SSL_CIPHER_num(sk) == 0) 1428 return (NULL); 1429 1430 buf[0] = '\0'; 1431 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { 1432 c = sk_SSL_CIPHER_value(sk, i); 1433 end = buf + curlen; 1434 if (strlcat(buf, c->name, len) >= len || 1435 (curlen = strlcat(buf, ":", len)) >= len) { 1436 /* remove truncated cipher from list */ 1437 *end = '\0'; 1438 break; 1439 } 1440 } 1441 /* remove trailing colon */ 1442 if ((end = strrchr(buf, ':')) != NULL) 1443 *end = '\0'; 1444 return (buf); 1445} 1446 1447/* 1448 * Return a servername extension value if provided in Client Hello, or NULL. 1449 * So far, only host_name types are defined (RFC 3546). 1450 */ 1451const char * 1452SSL_get_servername(const SSL *s, const int type) 1453{ 1454 if (type != TLSEXT_NAMETYPE_host_name) 1455 return (NULL); 1456 1457 return (s->session && !s->tlsext_hostname ? 1458 s->session->tlsext_hostname : 1459 s->tlsext_hostname); 1460} 1461 1462int 1463SSL_get_servername_type(const SSL *s) 1464{ 1465 if (s->session && 1466 (!s->tlsext_hostname ? 1467 s->session->tlsext_hostname : s->tlsext_hostname)) 1468 return (TLSEXT_NAMETYPE_host_name); 1469 return (-1); 1470} 1471 1472/* 1473 * SSL_select_next_proto implements standard protocol selection. It is 1474 * expected that this function is called from the callback set by 1475 * SSL_CTX_set_alpn_select_cb. 1476 * 1477 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1478 * strings. The length byte itself is not included in the length. A byte 1479 * string of length 0 is invalid. No byte string may be truncated. 1480 * 1481 * It returns either: 1482 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1483 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1484 */ 1485int 1486SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1487 const unsigned char *server, unsigned int server_len, 1488 const unsigned char *client, unsigned int client_len) 1489{ 1490 unsigned int i, j; 1491 const unsigned char *result; 1492 int status = OPENSSL_NPN_UNSUPPORTED; 1493 1494 /* 1495 * For each protocol in server preference order, 1496 * see if we support it. 1497 */ 1498 for (i = 0; i < server_len; ) { 1499 for (j = 0; j < client_len; ) { 1500 if (server[i] == client[j] && 1501 memcmp(&server[i + 1], 1502 &client[j + 1], server[i]) == 0) { 1503 /* We found a match */ 1504 result = &server[i]; 1505 status = OPENSSL_NPN_NEGOTIATED; 1506 goto found; 1507 } 1508 j += client[j]; 1509 j++; 1510 } 1511 i += server[i]; 1512 i++; 1513 } 1514 1515 /* There's no overlap between our protocols and the server's list. */ 1516 result = client; 1517 status = OPENSSL_NPN_NO_OVERLAP; 1518 1519found: 1520 *out = (unsigned char *) result + 1; 1521 *outlen = result[0]; 1522 return (status); 1523} 1524 1525/* SSL_get0_next_proto_negotiated is deprecated. */ 1526void 1527SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1528 unsigned *len) 1529{ 1530 *data = NULL; 1531 *len = 0; 1532} 1533 1534/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */ 1535void 1536SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1537 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1538{ 1539} 1540 1541/* SSL_CTX_set_next_proto_select_cb is deprecated. */ 1542void 1543SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1544 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1545 unsigned int inlen, void *arg), void *arg) 1546{ 1547} 1548 1549/* 1550 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified 1551 * protocols, which must be in wire-format (i.e. a series of non-empty, 1552 * 8-bit length-prefixed strings). Returns 0 on success. 1553 */ 1554int 1555SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, 1556 unsigned int protos_len) 1557{ 1558 int failed = 1; 1559 1560 if (protos == NULL || protos_len == 0) 1561 goto err; 1562 1563 free(ctx->internal->alpn_client_proto_list); 1564 ctx->internal->alpn_client_proto_list = NULL; 1565 ctx->internal->alpn_client_proto_list_len = 0; 1566 1567 if ((ctx->internal->alpn_client_proto_list = malloc(protos_len)) 1568 == NULL) 1569 goto err; 1570 ctx->internal->alpn_client_proto_list_len = protos_len; 1571 1572 memcpy(ctx->internal->alpn_client_proto_list, protos, protos_len); 1573 1574 failed = 0; 1575 1576 err: 1577 /* NOTE: Return values are the reverse of what you expect. */ 1578 return (failed); 1579} 1580 1581/* 1582 * SSL_set_alpn_protos sets the ALPN protocol list to the specified 1583 * protocols, which must be in wire-format (i.e. a series of non-empty, 1584 * 8-bit length-prefixed strings). Returns 0 on success. 1585 */ 1586int 1587SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, 1588 unsigned int protos_len) 1589{ 1590 int failed = 1; 1591 1592 if (protos == NULL || protos_len == 0) 1593 goto err; 1594 1595 free(ssl->internal->alpn_client_proto_list); 1596 ssl->internal->alpn_client_proto_list = NULL; 1597 ssl->internal->alpn_client_proto_list_len = 0; 1598 1599 if ((ssl->internal->alpn_client_proto_list = malloc(protos_len)) 1600 == NULL) 1601 goto err; 1602 ssl->internal->alpn_client_proto_list_len = protos_len; 1603 1604 memcpy(ssl->internal->alpn_client_proto_list, protos, protos_len); 1605 1606 failed = 0; 1607 1608 err: 1609 /* NOTE: Return values are the reverse of what you expect. */ 1610 return (failed); 1611} 1612 1613/* 1614 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during 1615 * ClientHello processing in order to select an ALPN protocol from the 1616 * client's list of offered protocols. 1617 */ 1618void 1619SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx, 1620 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen, 1621 const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1622{ 1623 ctx->internal->alpn_select_cb = cb; 1624 ctx->internal->alpn_select_cb_arg = arg; 1625} 1626 1627/* 1628 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return 1629 * it sets data to point to len bytes of protocol name (not including the 1630 * leading length-prefix byte). If the server didn't respond with* a negotiated 1631 * protocol then len will be zero. 1632 */ 1633void 1634SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, 1635 unsigned *len) 1636{ 1637 *data = NULL; 1638 *len = 0; 1639 1640 if (ssl->s3 != NULL) { 1641 *data = ssl->s3->internal->alpn_selected; 1642 *len = ssl->s3->internal->alpn_selected_len; 1643 } 1644} 1645 1646int 1647SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1648 const char *label, size_t llen, const unsigned char *p, size_t plen, 1649 int use_context) 1650{ 1651 return (tls1_export_keying_material(s, out, olen, 1652 label, llen, p, plen, use_context)); 1653} 1654 1655static unsigned long 1656ssl_session_hash(const SSL_SESSION *a) 1657{ 1658 unsigned long l; 1659 1660 l = (unsigned long) 1661 ((unsigned int) a->session_id[0] )| 1662 ((unsigned int) a->session_id[1]<< 8L)| 1663 ((unsigned long)a->session_id[2]<<16L)| 1664 ((unsigned long)a->session_id[3]<<24L); 1665 return (l); 1666} 1667 1668/* 1669 * NB: If this function (or indeed the hash function which uses a sort of 1670 * coarser function than this one) is changed, ensure 1671 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1672 * able to construct an SSL_SESSION that will collide with any existing session 1673 * with a matching session ID. 1674 */ 1675static int 1676ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 1677{ 1678 if (a->ssl_version != b->ssl_version) 1679 return (1); 1680 if (a->session_id_length != b->session_id_length) 1681 return (1); 1682 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0) 1683 return (1); 1684 return (0); 1685} 1686 1687/* 1688 * These wrapper functions should remain rather than redeclaring 1689 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1690 * variable. The reason is that the functions aren't static, they're exposed via 1691 * ssl.h. 1692 */ 1693static unsigned long 1694ssl_session_LHASH_HASH(const void *arg) 1695{ 1696 const SSL_SESSION *a = arg; 1697 1698 return ssl_session_hash(a); 1699} 1700 1701static int 1702ssl_session_LHASH_COMP(const void *arg1, const void *arg2) 1703{ 1704 const SSL_SESSION *a = arg1; 1705 const SSL_SESSION *b = arg2; 1706 1707 return ssl_session_cmp(a, b); 1708} 1709 1710SSL_CTX * 1711SSL_CTX_new(const SSL_METHOD *meth) 1712{ 1713 SSL_CTX *ret; 1714 1715 if (!OPENSSL_init_ssl(0, NULL)) { 1716 SSLerrorx(SSL_R_LIBRARY_BUG); 1717 return (NULL); 1718 } 1719 1720 if (meth == NULL) { 1721 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED); 1722 return (NULL); 1723 } 1724 1725 if ((ret = calloc(1, sizeof(*ret))) == NULL) { 1726 SSLerrorx(ERR_R_MALLOC_FAILURE); 1727 return (NULL); 1728 } 1729 if ((ret->internal = calloc(1, sizeof(*ret->internal))) == NULL) { 1730 free(ret); 1731 SSLerrorx(ERR_R_MALLOC_FAILURE); 1732 return (NULL); 1733 } 1734 1735 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 1736 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1737 goto err; 1738 } 1739 1740 ret->method = meth; 1741 ret->internal->min_version = meth->internal->min_version; 1742 ret->internal->max_version = meth->internal->max_version; 1743 1744 ret->cert_store = NULL; 1745 ret->internal->session_cache_mode = SSL_SESS_CACHE_SERVER; 1746 ret->internal->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1747 ret->internal->session_cache_head = NULL; 1748 ret->internal->session_cache_tail = NULL; 1749 1750 /* We take the system default */ 1751 ret->session_timeout = meth->internal->get_timeout(); 1752 1753 ret->internal->new_session_cb = 0; 1754 ret->internal->remove_session_cb = 0; 1755 ret->internal->get_session_cb = 0; 1756 ret->internal->generate_session_id = 0; 1757 1758 memset((char *)&ret->internal->stats, 0, sizeof(ret->internal->stats)); 1759 1760 ret->references = 1; 1761 ret->internal->quiet_shutdown = 0; 1762 1763 ret->internal->info_callback = NULL; 1764 1765 ret->internal->app_verify_callback = 0; 1766 ret->internal->app_verify_arg = NULL; 1767 1768 ret->internal->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 1769 ret->internal->read_ahead = 0; 1770 ret->internal->msg_callback = 0; 1771 ret->internal->msg_callback_arg = NULL; 1772 ret->verify_mode = SSL_VERIFY_NONE; 1773 ret->sid_ctx_length = 0; 1774 ret->internal->default_verify_callback = NULL; 1775 1776 if ((ret->internal->cert = ssl_cert_new()) == NULL) 1777 goto err; 1778 1779 ret->default_passwd_callback = 0; 1780 ret->default_passwd_callback_userdata = NULL; 1781 ret->internal->client_cert_cb = 0; 1782 ret->internal->app_gen_cookie_cb = 0; 1783 ret->internal->app_verify_cookie_cb = 0; 1784 1785 ret->internal->sessions = lh_SSL_SESSION_new(); 1786 if (ret->internal->sessions == NULL) 1787 goto err; 1788 ret->cert_store = X509_STORE_new(); 1789 if (ret->cert_store == NULL) 1790 goto err; 1791 1792 ssl_create_cipher_list(ret->method, &ret->cipher_list, 1793 &ret->internal->cipher_list_by_id, SSL_DEFAULT_CIPHER_LIST); 1794 if (ret->cipher_list == NULL || 1795 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 1796 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS); 1797 goto err2; 1798 } 1799 1800 ret->param = X509_VERIFY_PARAM_new(); 1801 if (!ret->param) 1802 goto err; 1803 1804 if ((ret->internal->client_CA = sk_X509_NAME_new_null()) == NULL) 1805 goto err; 1806 1807 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->internal->ex_data); 1808 1809 ret->extra_certs = NULL; 1810 1811 ret->internal->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 1812 1813 ret->internal->tlsext_servername_callback = 0; 1814 ret->internal->tlsext_servername_arg = NULL; 1815 1816 /* Setup RFC4507 ticket keys */ 1817 arc4random_buf(ret->internal->tlsext_tick_key_name, 16); 1818 arc4random_buf(ret->internal->tlsext_tick_hmac_key, 16); 1819 arc4random_buf(ret->internal->tlsext_tick_aes_key, 16); 1820 1821 ret->internal->tlsext_status_cb = 0; 1822 ret->internal->tlsext_status_arg = NULL; 1823 1824#ifndef OPENSSL_NO_ENGINE 1825 ret->internal->client_cert_engine = NULL; 1826#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1827#define eng_strx(x) #x 1828#define eng_str(x) eng_strx(x) 1829 /* Use specific client engine automatically... ignore errors */ 1830 { 1831 ENGINE *eng; 1832 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1833 if (!eng) { 1834 ERR_clear_error(); 1835 ENGINE_load_builtin_engines(); 1836 eng = ENGINE_by_id(eng_str( 1837 OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1838 } 1839 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1840 ERR_clear_error(); 1841 } 1842#endif 1843#endif 1844 /* 1845 * Default is to connect to non-RI servers. When RI is more widely 1846 * deployed might change this. 1847 */ 1848 ret->internal->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1849 1850 return (ret); 1851err: 1852 SSLerrorx(ERR_R_MALLOC_FAILURE); 1853err2: 1854 SSL_CTX_free(ret); 1855 return (NULL); 1856} 1857 1858void 1859SSL_CTX_free(SSL_CTX *ctx) 1860{ 1861 int i; 1862 1863 if (ctx == NULL) 1864 return; 1865 1866 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX); 1867 if (i > 0) 1868 return; 1869 1870 X509_VERIFY_PARAM_free(ctx->param); 1871 1872 /* 1873 * Free internal session cache. However: the remove_cb() may reference 1874 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1875 * after the sessions were flushed. 1876 * As the ex_data handling routines might also touch the session cache, 1877 * the most secure solution seems to be: empty (flush) the cache, then 1878 * free ex_data, then finally free the cache. 1879 * (See ticket [openssl.org #212].) 1880 */ 1881 if (ctx->internal->sessions != NULL) 1882 SSL_CTX_flush_sessions(ctx, 0); 1883 1884 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->internal->ex_data); 1885 1886 lh_SSL_SESSION_free(ctx->internal->sessions); 1887 1888 X509_STORE_free(ctx->cert_store); 1889 sk_SSL_CIPHER_free(ctx->cipher_list); 1890 sk_SSL_CIPHER_free(ctx->internal->cipher_list_by_id); 1891 ssl_cert_free(ctx->internal->cert); 1892 sk_X509_NAME_pop_free(ctx->internal->client_CA, X509_NAME_free); 1893 sk_X509_pop_free(ctx->extra_certs, X509_free); 1894 1895#ifndef OPENSSL_NO_SRTP 1896 if (ctx->internal->srtp_profiles) 1897 sk_SRTP_PROTECTION_PROFILE_free(ctx->internal->srtp_profiles); 1898#endif 1899 1900#ifndef OPENSSL_NO_ENGINE 1901 ENGINE_finish(ctx->internal->client_cert_engine); 1902#endif 1903 1904 free(ctx->internal->tlsext_ecpointformatlist); 1905 free(ctx->internal->tlsext_supportedgroups); 1906 1907 free(ctx->internal->alpn_client_proto_list); 1908 1909 free(ctx->internal); 1910 free(ctx); 1911} 1912 1913int 1914SSL_CTX_up_ref(SSL_CTX *ctx) 1915{ 1916 int refs = CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 1917 return ((refs > 1) ? 1 : 0); 1918} 1919 1920pem_password_cb * 1921SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) 1922{ 1923 return (ctx->default_passwd_callback); 1924} 1925 1926void 1927SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1928{ 1929 ctx->default_passwd_callback = cb; 1930} 1931 1932void * 1933SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) 1934{ 1935 return ctx->default_passwd_callback_userdata; 1936} 1937 1938void 1939SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 1940{ 1941 ctx->default_passwd_callback_userdata = u; 1942} 1943 1944void 1945SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *, 1946 void *), void *arg) 1947{ 1948 ctx->internal->app_verify_callback = cb; 1949 ctx->internal->app_verify_arg = arg; 1950} 1951 1952void 1953SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 1954{ 1955 ctx->verify_mode = mode; 1956 ctx->internal->default_verify_callback = cb; 1957} 1958 1959void 1960SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 1961{ 1962 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1963} 1964 1965void 1966ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) 1967{ 1968 int rsa_enc, rsa_sign, dh_tmp; 1969 int have_ecc_cert; 1970 unsigned long mask_k, mask_a; 1971 X509 *x = NULL; 1972 CERT_PKEY *cpk; 1973 1974 if (c == NULL) 1975 return; 1976 1977 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || 1978 c->dh_tmp_auto != 0); 1979 1980 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]); 1981 rsa_enc = (cpk->x509 != NULL && cpk->privatekey != NULL); 1982 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1983 rsa_sign = (cpk->x509 != NULL && cpk->privatekey != NULL); 1984 cpk = &(c->pkeys[SSL_PKEY_ECC]); 1985 have_ecc_cert = (cpk->x509 != NULL && cpk->privatekey != NULL); 1986 1987 mask_k = 0; 1988 mask_a = 0; 1989 1990 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 1991 if (cpk->x509 != NULL && cpk->privatekey !=NULL) { 1992 mask_k |= SSL_kGOST; 1993 mask_a |= SSL_aGOST01; 1994 } 1995 1996 if (rsa_enc) 1997 mask_k |= SSL_kRSA; 1998 1999 if (dh_tmp) 2000 mask_k |= SSL_kDHE; 2001 2002 if (rsa_enc || rsa_sign) 2003 mask_a |= SSL_aRSA; 2004 2005 mask_a |= SSL_aNULL; 2006 2007 /* 2008 * An ECC certificate may be usable for ECDH and/or 2009 * ECDSA cipher suites depending on the key usage extension. 2010 */ 2011 if (have_ecc_cert) { 2012 x = (c->pkeys[SSL_PKEY_ECC]).x509; 2013 2014 /* This call populates extension flags (ex_flags). */ 2015 X509_check_purpose(x, -1, 0); 2016 2017 /* Key usage, if present, must allow signing. */ 2018 if ((x->ex_flags & EXFLAG_KUSAGE) == 0 || 2019 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)) 2020 mask_a |= SSL_aECDSA; 2021 } 2022 2023 mask_k |= SSL_kECDHE; 2024 2025 c->mask_k = mask_k; 2026 c->mask_a = mask_a; 2027 c->valid = 1; 2028} 2029 2030/* See if this handshake is using an ECC cipher suite. */ 2031int 2032ssl_using_ecc_cipher(SSL *s) 2033{ 2034 unsigned long alg_a, alg_k; 2035 2036 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 2037 alg_k = S3I(s)->hs.new_cipher->algorithm_mkey; 2038 2039 return SSI(s)->tlsext_ecpointformatlist != NULL && 2040 SSI(s)->tlsext_ecpointformatlist_length > 0 && 2041 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA)); 2042} 2043 2044int 2045ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) 2046{ 2047 const SSL_CIPHER *cs = S3I(s)->hs.new_cipher; 2048 unsigned long alg_a; 2049 2050 alg_a = cs->algorithm_auth; 2051 2052 if (alg_a & SSL_aECDSA) { 2053 /* This call populates extension flags (ex_flags). */ 2054 X509_check_purpose(x, -1, 0); 2055 2056 /* Key usage, if present, must allow signing. */ 2057 if ((x->ex_flags & EXFLAG_KUSAGE) && 2058 ((x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) == 0)) { 2059 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2060 return (0); 2061 } 2062 } 2063 2064 return (1); 2065} 2066 2067CERT_PKEY * 2068ssl_get_server_send_pkey(const SSL *s) 2069{ 2070 unsigned long alg_a; 2071 CERT *c; 2072 int i; 2073 2074 c = s->cert; 2075 ssl_set_cert_masks(c, S3I(s)->hs.new_cipher); 2076 2077 alg_a = S3I(s)->hs.new_cipher->algorithm_auth; 2078 2079 if (alg_a & SSL_aECDSA) { 2080 i = SSL_PKEY_ECC; 2081 } else if (alg_a & SSL_aRSA) { 2082 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 2083 i = SSL_PKEY_RSA_SIGN; 2084 else 2085 i = SSL_PKEY_RSA_ENC; 2086 } else if (alg_a & SSL_aGOST01) { 2087 i = SSL_PKEY_GOST01; 2088 } else { /* if (alg_a & SSL_aNULL) */ 2089 SSLerror(s, ERR_R_INTERNAL_ERROR); 2090 return (NULL); 2091 } 2092 2093 return (c->pkeys + i); 2094} 2095 2096EVP_PKEY * 2097ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd, 2098 const struct ssl_sigalg **sap) 2099{ 2100 const struct ssl_sigalg *sigalg = NULL; 2101 EVP_PKEY *pkey = NULL; 2102 unsigned long alg_a; 2103 CERT *c; 2104 int idx = -1; 2105 2106 alg_a = cipher->algorithm_auth; 2107 c = s->cert; 2108 2109 if (alg_a & SSL_aRSA) { 2110 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 2111 idx = SSL_PKEY_RSA_SIGN; 2112 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 2113 idx = SSL_PKEY_RSA_ENC; 2114 } else if ((alg_a & SSL_aECDSA) && 2115 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2116 idx = SSL_PKEY_ECC; 2117 if (idx == -1) { 2118 SSLerror(s, ERR_R_INTERNAL_ERROR); 2119 return (NULL); 2120 } 2121 2122 pkey = c->pkeys[idx].privatekey; 2123 sigalg = c->pkeys[idx].sigalg; 2124 if (!SSL_USE_SIGALGS(s)) { 2125 if (pkey->type == EVP_PKEY_RSA) { 2126 sigalg = ssl_sigalg_lookup(SIGALG_RSA_PKCS1_MD5_SHA1); 2127 } else if (pkey->type == EVP_PKEY_EC) { 2128 sigalg = ssl_sigalg_lookup(SIGALG_ECDSA_SHA1); 2129 } else { 2130 SSLerror(s, SSL_R_UNKNOWN_PKEY_TYPE); 2131 return (NULL); 2132 } 2133 } 2134 if (sigalg == NULL) { 2135 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR); 2136 return (NULL); 2137 } 2138 *pmd = sigalg->md(); 2139 *sap = sigalg; 2140 2141 return (pkey); 2142} 2143 2144DH * 2145ssl_get_auto_dh(SSL *s) 2146{ 2147 CERT_PKEY *cpk; 2148 int keylen; 2149 DH *dhp; 2150 2151 if (s->cert->dh_tmp_auto == 2) { 2152 keylen = 1024; 2153 } else if (S3I(s)->hs.new_cipher->algorithm_auth & SSL_aNULL) { 2154 keylen = 1024; 2155 if (S3I(s)->hs.new_cipher->strength_bits == 256) 2156 keylen = 3072; 2157 } else { 2158 if ((cpk = ssl_get_server_send_pkey(s)) == NULL) 2159 return (NULL); 2160 if (cpk->privatekey == NULL || cpk->privatekey->pkey.dh == NULL) 2161 return (NULL); 2162 keylen = EVP_PKEY_bits(cpk->privatekey); 2163 } 2164 2165 if ((dhp = DH_new()) == NULL) 2166 return (NULL); 2167 2168 dhp->g = BN_new(); 2169 if (dhp->g != NULL) 2170 BN_set_word(dhp->g, 2); 2171 2172 if (keylen >= 8192) 2173 dhp->p = get_rfc3526_prime_8192(NULL); 2174 else if (keylen >= 4096) 2175 dhp->p = get_rfc3526_prime_4096(NULL); 2176 else if (keylen >= 3072) 2177 dhp->p = get_rfc3526_prime_3072(NULL); 2178 else if (keylen >= 2048) 2179 dhp->p = get_rfc3526_prime_2048(NULL); 2180 else if (keylen >= 1536) 2181 dhp->p = get_rfc3526_prime_1536(NULL); 2182 else 2183 dhp->p = get_rfc2409_prime_1024(NULL); 2184 2185 if (dhp->p == NULL || dhp->g == NULL) { 2186 DH_free(dhp); 2187 return (NULL); 2188 } 2189 return (dhp); 2190} 2191 2192void 2193ssl_update_cache(SSL *s, int mode) 2194{ 2195 int i; 2196 2197 /* 2198 * If the session_id_length is 0, we are not supposed to cache it, 2199 * and it would be rather hard to do anyway :-) 2200 */ 2201 if (s->session->session_id_length == 0) 2202 return; 2203 2204 i = s->session_ctx->internal->session_cache_mode; 2205 if ((i & mode) && (!s->internal->hit) && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2206 || SSL_CTX_add_session(s->session_ctx, s->session)) 2207 && (s->session_ctx->internal->new_session_cb != NULL)) { 2208 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2209 if (!s->session_ctx->internal->new_session_cb(s, s->session)) 2210 SSL_SESSION_free(s->session); 2211 } 2212 2213 /* auto flush every 255 connections */ 2214 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2215 ((i & mode) == mode)) { 2216 if ((((mode & SSL_SESS_CACHE_CLIENT) ? 2217 s->session_ctx->internal->stats.sess_connect_good : 2218 s->session_ctx->internal->stats.sess_accept_good) & 0xff) == 0xff) { 2219 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2220 } 2221 } 2222} 2223 2224const SSL_METHOD * 2225SSL_get_ssl_method(SSL *s) 2226{ 2227 return (s->method); 2228} 2229 2230int 2231SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) 2232{ 2233 int conn = -1; 2234 int ret = 1; 2235 2236 if (s->method != meth) { 2237 if (s->internal->handshake_func != NULL) 2238 conn = (s->internal->handshake_func == s->method->internal->ssl_connect); 2239 2240 if (s->method->internal->version == meth->internal->version) 2241 s->method = meth; 2242 else { 2243 s->method->internal->ssl_free(s); 2244 s->method = meth; 2245 ret = s->method->internal->ssl_new(s); 2246 } 2247 2248 if (conn == 1) 2249 s->internal->handshake_func = meth->internal->ssl_connect; 2250 else if (conn == 0) 2251 s->internal->handshake_func = meth->internal->ssl_accept; 2252 } 2253 return (ret); 2254} 2255 2256int 2257SSL_get_error(const SSL *s, int i) 2258{ 2259 int reason; 2260 unsigned long l; 2261 BIO *bio; 2262 2263 if (i > 0) 2264 return (SSL_ERROR_NONE); 2265 2266 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2267 * etc, where we do encode the error */ 2268 if ((l = ERR_peek_error()) != 0) { 2269 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2270 return (SSL_ERROR_SYSCALL); 2271 else 2272 return (SSL_ERROR_SSL); 2273 } 2274 2275 if ((i < 0) && SSL_want_read(s)) { 2276 bio = SSL_get_rbio(s); 2277 if (BIO_should_read(bio)) { 2278 return (SSL_ERROR_WANT_READ); 2279 } else if (BIO_should_write(bio)) { 2280 /* 2281 * This one doesn't make too much sense... We never 2282 * try to write to the rbio, and an application 2283 * program where rbio and wbio are separate couldn't 2284 * even know what it should wait for. However if we 2285 * ever set s->internal->rwstate incorrectly (so that we have 2286 * SSL_want_read(s) instead of SSL_want_write(s)) 2287 * and rbio and wbio *are* the same, this test works 2288 * around that bug; so it might be safer to keep it. 2289 */ 2290 return (SSL_ERROR_WANT_WRITE); 2291 } else if (BIO_should_io_special(bio)) { 2292 reason = BIO_get_retry_reason(bio); 2293 if (reason == BIO_RR_CONNECT) 2294 return (SSL_ERROR_WANT_CONNECT); 2295 else if (reason == BIO_RR_ACCEPT) 2296 return (SSL_ERROR_WANT_ACCEPT); 2297 else 2298 return (SSL_ERROR_SYSCALL); /* unknown */ 2299 } 2300 } 2301 2302 if ((i < 0) && SSL_want_write(s)) { 2303 bio = SSL_get_wbio(s); 2304 if (BIO_should_write(bio)) { 2305 return (SSL_ERROR_WANT_WRITE); 2306 } else if (BIO_should_read(bio)) { 2307 /* 2308 * See above (SSL_want_read(s) with 2309 * BIO_should_write(bio)) 2310 */ 2311 return (SSL_ERROR_WANT_READ); 2312 } else if (BIO_should_io_special(bio)) { 2313 reason = BIO_get_retry_reason(bio); 2314 if (reason == BIO_RR_CONNECT) 2315 return (SSL_ERROR_WANT_CONNECT); 2316 else if (reason == BIO_RR_ACCEPT) 2317 return (SSL_ERROR_WANT_ACCEPT); 2318 else 2319 return (SSL_ERROR_SYSCALL); 2320 } 2321 } 2322 if ((i < 0) && SSL_want_x509_lookup(s)) { 2323 return (SSL_ERROR_WANT_X509_LOOKUP); 2324 } 2325 2326 if (i == 0) { 2327 if ((s->internal->shutdown & SSL_RECEIVED_SHUTDOWN) && 2328 (S3I(s)->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2329 return (SSL_ERROR_ZERO_RETURN); 2330 } 2331 return (SSL_ERROR_SYSCALL); 2332} 2333 2334int 2335SSL_do_handshake(SSL *s) 2336{ 2337 int ret = 1; 2338 2339 if (s->internal->handshake_func == NULL) { 2340 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET); 2341 return (-1); 2342 } 2343 2344 s->method->internal->ssl_renegotiate_check(s); 2345 2346 if (SSL_in_init(s) || SSL_in_before(s)) { 2347 ret = s->internal->handshake_func(s); 2348 } 2349 return (ret); 2350} 2351 2352/* 2353 * For the next 2 functions, SSL_clear() sets shutdown and so 2354 * one of these calls will reset it 2355 */ 2356void 2357SSL_set_accept_state(SSL *s) 2358{ 2359 s->server = 1; 2360 s->internal->shutdown = 0; 2361 S3I(s)->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2362 s->internal->handshake_func = s->method->internal->ssl_accept; 2363 ssl_clear_cipher_state(s); 2364} 2365 2366void 2367SSL_set_connect_state(SSL *s) 2368{ 2369 s->server = 0; 2370 s->internal->shutdown = 0; 2371 S3I(s)->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2372 s->internal->handshake_func = s->method->internal->ssl_connect; 2373 ssl_clear_cipher_state(s); 2374} 2375 2376int 2377ssl_undefined_function(SSL *s) 2378{ 2379 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2380 return (0); 2381} 2382 2383int 2384ssl_undefined_void_function(void) 2385{ 2386 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2387 return (0); 2388} 2389 2390int 2391ssl_undefined_const_function(const SSL *s) 2392{ 2393 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2394 return (0); 2395} 2396 2397const char * 2398ssl_version_string(int ver) 2399{ 2400 switch (ver) { 2401 case DTLS1_VERSION: 2402 return (SSL_TXT_DTLS1); 2403 case TLS1_VERSION: 2404 return (SSL_TXT_TLSV1); 2405 case TLS1_1_VERSION: 2406 return (SSL_TXT_TLSV1_1); 2407 case TLS1_2_VERSION: 2408 return (SSL_TXT_TLSV1_2); 2409 case TLS1_3_VERSION: 2410 return (SSL_TXT_TLSV1_3); 2411 default: 2412 return ("unknown"); 2413 } 2414} 2415 2416const char * 2417SSL_get_version(const SSL *s) 2418{ 2419 return ssl_version_string(s->version); 2420} 2421 2422SSL * 2423SSL_dup(SSL *s) 2424{ 2425 STACK_OF(X509_NAME) *sk; 2426 X509_NAME *xn; 2427 SSL *ret; 2428 int i; 2429 2430 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2431 goto err; 2432 2433 ret->version = s->version; 2434 ret->internal->type = s->internal->type; 2435 ret->method = s->method; 2436 2437 if (s->session != NULL) { 2438 if (!SSL_copy_session_id(ret, s)) 2439 goto err; 2440 } else { 2441 /* 2442 * No session has been established yet, so we have to expect 2443 * that s->cert or ret->cert will be changed later -- 2444 * they should not both point to the same object, 2445 * and thus we can't use SSL_copy_session_id. 2446 */ 2447 2448 ret->method->internal->ssl_free(ret); 2449 ret->method = s->method; 2450 ret->method->internal->ssl_new(ret); 2451 2452 ssl_cert_free(ret->cert); 2453 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL) 2454 goto err; 2455 2456 if (!SSL_set_session_id_context(ret, s->sid_ctx, 2457 s->sid_ctx_length)) 2458 goto err; 2459 } 2460 2461 ret->internal->options = s->internal->options; 2462 ret->internal->mode = s->internal->mode; 2463 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2464 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2465 ret->internal->msg_callback = s->internal->msg_callback; 2466 ret->internal->msg_callback_arg = s->internal->msg_callback_arg; 2467 SSL_set_verify(ret, SSL_get_verify_mode(s), 2468 SSL_get_verify_callback(s)); 2469 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2470 ret->internal->generate_session_id = s->internal->generate_session_id; 2471 2472 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2473 2474 ret->internal->debug = s->internal->debug; 2475 2476 /* copy app data, a little dangerous perhaps */ 2477 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2478 &ret->internal->ex_data, &s->internal->ex_data)) 2479 goto err; 2480 2481 /* setup rbio, and wbio */ 2482 if (s->rbio != NULL) { 2483 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2484 goto err; 2485 } 2486 if (s->wbio != NULL) { 2487 if (s->wbio != s->rbio) { 2488 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2489 goto err; 2490 } else 2491 ret->wbio = ret->rbio; 2492 } 2493 ret->internal->rwstate = s->internal->rwstate; 2494 ret->internal->in_handshake = s->internal->in_handshake; 2495 ret->internal->handshake_func = s->internal->handshake_func; 2496 ret->server = s->server; 2497 ret->internal->renegotiate = s->internal->renegotiate; 2498 ret->internal->new_session = s->internal->new_session; 2499 ret->internal->quiet_shutdown = s->internal->quiet_shutdown; 2500 ret->internal->shutdown = s->internal->shutdown; 2501 /* SSL_dup does not really work at any state, though */ 2502 S3I(ret)->hs.state = S3I(s)->hs.state; 2503 ret->internal->rstate = s->internal->rstate; 2504 2505 /* 2506 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2507 * ret->init_off 2508 */ 2509 ret->internal->init_num = 0; 2510 2511 ret->internal->hit = s->internal->hit; 2512 2513 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2514 2515 /* dup the cipher_list and cipher_list_by_id stacks */ 2516 if (s->cipher_list != NULL) { 2517 if ((ret->cipher_list = 2518 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2519 goto err; 2520 } 2521 if (s->internal->cipher_list_by_id != NULL) { 2522 if ((ret->internal->cipher_list_by_id = 2523 sk_SSL_CIPHER_dup(s->internal->cipher_list_by_id)) == NULL) 2524 goto err; 2525 } 2526 2527 /* Dup the client_CA list */ 2528 if (s->internal->client_CA != NULL) { 2529 if ((sk = sk_X509_NAME_dup(s->internal->client_CA)) == NULL) goto err; 2530 ret->internal->client_CA = sk; 2531 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2532 xn = sk_X509_NAME_value(sk, i); 2533 if (sk_X509_NAME_set(sk, i, 2534 X509_NAME_dup(xn)) == NULL) { 2535 X509_NAME_free(xn); 2536 goto err; 2537 } 2538 } 2539 } 2540 2541 return ret; 2542 err: 2543 SSL_free(ret); 2544 return NULL; 2545} 2546 2547void 2548ssl_clear_cipher_state(SSL *s) 2549{ 2550 ssl_clear_cipher_read_state(s); 2551 ssl_clear_cipher_write_state(s); 2552} 2553 2554void 2555ssl_clear_cipher_read_state(SSL *s) 2556{ 2557 EVP_CIPHER_CTX_free(s->enc_read_ctx); 2558 s->enc_read_ctx = NULL; 2559 EVP_MD_CTX_free(s->read_hash); 2560 s->read_hash = NULL; 2561 2562 if (s->internal->aead_read_ctx != NULL) { 2563 EVP_AEAD_CTX_cleanup(&s->internal->aead_read_ctx->ctx); 2564 free(s->internal->aead_read_ctx); 2565 s->internal->aead_read_ctx = NULL; 2566 } 2567} 2568 2569void 2570ssl_clear_cipher_write_state(SSL *s) 2571{ 2572 EVP_CIPHER_CTX_free(s->internal->enc_write_ctx); 2573 s->internal->enc_write_ctx = NULL; 2574 EVP_MD_CTX_free(s->internal->write_hash); 2575 s->internal->write_hash = NULL; 2576 2577 if (s->internal->aead_write_ctx != NULL) { 2578 EVP_AEAD_CTX_cleanup(&s->internal->aead_write_ctx->ctx); 2579 free(s->internal->aead_write_ctx); 2580 s->internal->aead_write_ctx = NULL; 2581 } 2582} 2583 2584/* Fix this function so that it takes an optional type parameter */ 2585X509 * 2586SSL_get_certificate(const SSL *s) 2587{ 2588 return (s->cert->key->x509); 2589} 2590 2591/* Fix this function so that it takes an optional type parameter */ 2592EVP_PKEY * 2593SSL_get_privatekey(const SSL *s) 2594{ 2595 return (s->cert->key->privatekey); 2596} 2597 2598const SSL_CIPHER * 2599SSL_get_current_cipher(const SSL *s) 2600{ 2601 if ((s->session != NULL) && (s->session->cipher != NULL)) 2602 return (s->session->cipher); 2603 return (NULL); 2604} 2605const void * 2606SSL_get_current_compression(SSL *s) 2607{ 2608 return (NULL); 2609} 2610 2611const void * 2612SSL_get_current_expansion(SSL *s) 2613{ 2614 return (NULL); 2615} 2616 2617size_t 2618SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out) 2619{ 2620 size_t len = sizeof(s->s3->client_random); 2621 2622 if (out == NULL) 2623 return len; 2624 2625 if (len > max_out) 2626 len = max_out; 2627 2628 memcpy(out, s->s3->client_random, len); 2629 2630 return len; 2631} 2632 2633size_t 2634SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out) 2635{ 2636 size_t len = sizeof(s->s3->server_random); 2637 2638 if (out == NULL) 2639 return len; 2640 2641 if (len > max_out) 2642 len = max_out; 2643 2644 memcpy(out, s->s3->server_random, len); 2645 2646 return len; 2647} 2648 2649int 2650ssl_init_wbio_buffer(SSL *s, int push) 2651{ 2652 BIO *bbio; 2653 2654 if (s->bbio == NULL) { 2655 bbio = BIO_new(BIO_f_buffer()); 2656 if (bbio == NULL) 2657 return (0); 2658 s->bbio = bbio; 2659 } else { 2660 bbio = s->bbio; 2661 if (s->bbio == s->wbio) 2662 s->wbio = BIO_pop(s->wbio); 2663 } 2664 (void)BIO_reset(bbio); 2665/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2666 if (!BIO_set_read_buffer_size(bbio, 1)) { 2667 SSLerror(s, ERR_R_BUF_LIB); 2668 return (0); 2669 } 2670 if (push) { 2671 if (s->wbio != bbio) 2672 s->wbio = BIO_push(bbio, s->wbio); 2673 } else { 2674 if (s->wbio == bbio) 2675 s->wbio = BIO_pop(bbio); 2676 } 2677 return (1); 2678} 2679 2680void 2681ssl_free_wbio_buffer(SSL *s) 2682{ 2683 if (s == NULL) 2684 return; 2685 2686 if (s->bbio == NULL) 2687 return; 2688 2689 if (s->bbio == s->wbio) { 2690 /* remove buffering */ 2691 s->wbio = BIO_pop(s->wbio); 2692 } 2693 BIO_free(s->bbio); 2694 s->bbio = NULL; 2695} 2696 2697void 2698SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 2699{ 2700 ctx->internal->quiet_shutdown = mode; 2701} 2702 2703int 2704SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2705{ 2706 return (ctx->internal->quiet_shutdown); 2707} 2708 2709void 2710SSL_set_quiet_shutdown(SSL *s, int mode) 2711{ 2712 s->internal->quiet_shutdown = mode; 2713} 2714 2715int 2716SSL_get_quiet_shutdown(const SSL *s) 2717{ 2718 return (s->internal->quiet_shutdown); 2719} 2720 2721void 2722SSL_set_shutdown(SSL *s, int mode) 2723{ 2724 s->internal->shutdown = mode; 2725} 2726 2727int 2728SSL_get_shutdown(const SSL *s) 2729{ 2730 return (s->internal->shutdown); 2731} 2732 2733int 2734SSL_version(const SSL *s) 2735{ 2736 return (s->version); 2737} 2738 2739SSL_CTX * 2740SSL_get_SSL_CTX(const SSL *ssl) 2741{ 2742 return (ssl->ctx); 2743} 2744 2745SSL_CTX * 2746SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2747{ 2748 CERT *ocert = ssl->cert; 2749 2750 if (ssl->ctx == ctx) 2751 return (ssl->ctx); 2752 if (ctx == NULL) 2753 ctx = ssl->initial_ctx; 2754 ssl->cert = ssl_cert_dup(ctx->internal->cert); 2755 if (ocert != NULL) { 2756 int i; 2757 /* Copy negotiated sigalg from original certificate. */ 2758 for (i = 0; i < SSL_PKEY_NUM; i++) 2759 ssl->cert->pkeys[i].sigalg = ocert->pkeys[i].sigalg; 2760 ssl_cert_free(ocert); 2761 } 2762 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 2763 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2764 ssl->ctx = ctx; 2765 return (ssl->ctx); 2766} 2767 2768int 2769SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2770{ 2771 return (X509_STORE_set_default_paths(ctx->cert_store)); 2772} 2773 2774int 2775SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2776 const char *CApath) 2777{ 2778 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 2779} 2780 2781int 2782SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len) 2783{ 2784 return (X509_STORE_load_mem(ctx->cert_store, buf, len)); 2785} 2786 2787void 2788SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val)) 2789{ 2790 ssl->internal->info_callback = cb; 2791} 2792 2793void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 2794{ 2795 return (ssl->internal->info_callback); 2796} 2797 2798int 2799SSL_state(const SSL *ssl) 2800{ 2801 return (S3I(ssl)->hs.state); 2802} 2803 2804void 2805SSL_set_state(SSL *ssl, int state) 2806{ 2807 S3I(ssl)->hs.state = state; 2808} 2809 2810void 2811SSL_set_verify_result(SSL *ssl, long arg) 2812{ 2813 ssl->verify_result = arg; 2814} 2815 2816long 2817SSL_get_verify_result(const SSL *ssl) 2818{ 2819 return (ssl->verify_result); 2820} 2821 2822int 2823SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2824 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2825{ 2826 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2827 new_func, dup_func, free_func)); 2828} 2829 2830int 2831SSL_set_ex_data(SSL *s, int idx, void *arg) 2832{ 2833 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2834} 2835 2836void * 2837SSL_get_ex_data(const SSL *s, int idx) 2838{ 2839 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2840} 2841 2842int 2843SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2844 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2845{ 2846 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2847 new_func, dup_func, free_func)); 2848} 2849 2850int 2851SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 2852{ 2853 return (CRYPTO_set_ex_data(&s->internal->ex_data, idx, arg)); 2854} 2855 2856void * 2857SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 2858{ 2859 return (CRYPTO_get_ex_data(&s->internal->ex_data, idx)); 2860} 2861 2862int 2863ssl_ok(SSL *s) 2864{ 2865 return (1); 2866} 2867 2868X509_STORE * 2869SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2870{ 2871 return (ctx->cert_store); 2872} 2873 2874void 2875SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 2876{ 2877 X509_STORE_free(ctx->cert_store); 2878 ctx->cert_store = store; 2879} 2880 2881X509 * 2882SSL_CTX_get0_certificate(const SSL_CTX *ctx) 2883{ 2884 if (ctx->internal->cert == NULL) 2885 return NULL; 2886 2887 return ctx->internal->cert->key->x509; 2888} 2889 2890int 2891SSL_want(const SSL *s) 2892{ 2893 return (s->internal->rwstate); 2894} 2895 2896void 2897SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export, 2898 int keylength)) 2899{ 2900 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2901} 2902 2903void 2904SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export, 2905 int keylength)) 2906{ 2907 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2908} 2909 2910void 2911SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 2912 int keylength)) 2913{ 2914 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2915} 2916 2917void 2918SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 2919 int keylength)) 2920{ 2921 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2922} 2923 2924void 2925SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 2926 int is_export, int keylength)) 2927{ 2928 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 2929 (void (*)(void))ecdh); 2930} 2931 2932void 2933SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 2934 int keylength)) 2935{ 2936 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2937} 2938 2939 2940void 2941SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 2942 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2943{ 2944 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 2945 (void (*)(void))cb); 2946} 2947 2948void 2949SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 2950 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 2951{ 2952 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2953} 2954 2955void 2956SSL_set_debug(SSL *s, int debug) 2957{ 2958 s->internal->debug = debug; 2959} 2960 2961int 2962SSL_cache_hit(SSL *s) 2963{ 2964 return (s->internal->hit); 2965} 2966 2967int 2968SSL_CTX_get_min_proto_version(SSL_CTX *ctx) 2969{ 2970 return ctx->internal->min_version; 2971} 2972 2973int 2974SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version) 2975{ 2976 return ssl_version_set_min(ctx->method, version, 2977 ctx->internal->max_version, &ctx->internal->min_version); 2978} 2979 2980int 2981SSL_CTX_get_max_proto_version(SSL_CTX *ctx) 2982{ 2983 return ctx->internal->max_version; 2984} 2985 2986int 2987SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version) 2988{ 2989 return ssl_version_set_max(ctx->method, version, 2990 ctx->internal->min_version, &ctx->internal->max_version); 2991} 2992 2993int 2994SSL_get_min_proto_version(SSL *ssl) 2995{ 2996 return ssl->internal->min_version; 2997} 2998 2999int 3000SSL_set_min_proto_version(SSL *ssl, uint16_t version) 3001{ 3002 return ssl_version_set_min(ssl->method, version, 3003 ssl->internal->max_version, &ssl->internal->min_version); 3004} 3005int 3006SSL_get_max_proto_version(SSL *ssl) 3007{ 3008 return ssl->internal->max_version; 3009} 3010 3011int 3012SSL_set_max_proto_version(SSL *ssl, uint16_t version) 3013{ 3014 return ssl_version_set_max(ssl->method, version, 3015 ssl->internal->min_version, &ssl->internal->max_version); 3016} 3017 3018static int 3019ssl_cipher_id_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 3020{ 3021 SSL_CIPHER const *a = a_; 3022 SSL_CIPHER const *b = b_; 3023 return ssl_cipher_id_cmp(a, b); 3024} 3025 3026SSL_CIPHER * 3027OBJ_bsearch_ssl_cipher_id(SSL_CIPHER *key, SSL_CIPHER const *base, int num) 3028{ 3029 return (SSL_CIPHER *)OBJ_bsearch_(key, base, num, sizeof(SSL_CIPHER), 3030 ssl_cipher_id_cmp_BSEARCH_CMP_FN); 3031} 3032