ssl_lib.c revision 1.46
1/*! \file ssl/ssl_lib.c 2 * \brief Version independent SSL functions. 3 */ 4/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 5 * All rights reserved. 6 * 7 * This package is an SSL implementation written 8 * by Eric Young (eay@cryptsoft.com). 9 * The implementation was written so as to conform with Netscapes SSL. 10 * 11 * This library is free for commercial and non-commercial use as long as 12 * the following conditions are aheared to. The following conditions 13 * apply to all code found in this distribution, be it the RC4, RSA, 14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 15 * included with this distribution is covered by the same copyright terms 16 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 17 * 18 * Copyright remains Eric Young's, and as such any Copyright notices in 19 * the code are not to be removed. 20 * If this package is used in a product, Eric Young should be given attribution 21 * as the author of the parts of the library used. 22 * This can be in the form of a textual message at program startup or 23 * in documentation (online or textual) provided with the package. 24 * 25 * Redistribution and use in source and binary forms, with or without 26 * modification, are permitted provided that the following conditions 27 * are met: 28 * 1. Redistributions of source code must retain the copyright 29 * notice, this list of conditions and the following disclaimer. 30 * 2. Redistributions in binary form must reproduce the above copyright 31 * notice, this list of conditions and the following disclaimer in the 32 * documentation and/or other materials provided with the distribution. 33 * 3. All advertising materials mentioning features or use of this software 34 * must display the following acknowledgement: 35 * "This product includes cryptographic software written by 36 * Eric Young (eay@cryptsoft.com)" 37 * The word 'cryptographic' can be left out if the rouines from the library 38 * being used are not cryptographic related :-). 39 * 4. If you include any Windows specific code (or a derivative thereof) from 40 * the apps directory (application code) you must include an acknowledgement: 41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 42 * 43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53 * SUCH DAMAGE. 54 * 55 * The licence and distribution terms for any publically available version or 56 * derivative of this code cannot be changed. i.e. this code cannot simply be 57 * copied and put under another distribution licence 58 * [including the GNU Public Licence.] 59 */ 60/* ==================================================================== 61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. 62 * 63 * Redistribution and use in source and binary forms, with or without 64 * modification, are permitted provided that the following conditions 65 * are met: 66 * 67 * 1. Redistributions of source code must retain the above copyright 68 * notice, this list of conditions and the following disclaimer. 69 * 70 * 2. Redistributions in binary form must reproduce the above copyright 71 * notice, this list of conditions and the following disclaimer in 72 * the documentation and/or other materials provided with the 73 * distribution. 74 * 75 * 3. All advertising materials mentioning features or use of this 76 * software must display the following acknowledgment: 77 * "This product includes software developed by the OpenSSL Project 78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 79 * 80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 81 * endorse or promote products derived from this software without 82 * prior written permission. For written permission, please contact 83 * openssl-core@openssl.org. 84 * 85 * 5. Products derived from this software may not be called "OpenSSL" 86 * nor may "OpenSSL" appear in their names without prior written 87 * permission of the OpenSSL Project. 88 * 89 * 6. Redistributions of any form whatsoever must retain the following 90 * acknowledgment: 91 * "This product includes software developed by the OpenSSL Project 92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 93 * 94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 105 * OF THE POSSIBILITY OF SUCH DAMAGE. 106 * ==================================================================== 107 * 108 * This product includes cryptographic software written by Eric Young 109 * (eay@cryptsoft.com). This product includes software written by Tim 110 * Hudson (tjh@cryptsoft.com). 111 * 112 */ 113/* ==================================================================== 114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 115 * ECC cipher suite support in OpenSSL originally developed by 116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. 117 */ 118/* ==================================================================== 119 * Copyright 2005 Nokia. All rights reserved. 120 * 121 * The portions of the attached software ("Contribution") is developed by 122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source 123 * license. 124 * 125 * The Contribution, originally written by Mika Kousa and Pasi Eronen of 126 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites 127 * support (see RFC 4279) to OpenSSL. 128 * 129 * No patent licenses or other rights except those expressly stated in 130 * the OpenSSL open source license shall be deemed granted or received 131 * expressly, by implication, estoppel, or otherwise. 132 * 133 * No assurances are provided by Nokia that the Contribution does not 134 * infringe the patent or other intellectual property rights of any third 135 * party or that the license provides you with all the necessary rights 136 * to make use of the Contribution. 137 * 138 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN 139 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA 140 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY 141 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR 142 * OTHERWISE. 143 */ 144 145#include <stdio.h> 146#include "ssl_locl.h" 147#include <openssl/objects.h> 148#include <openssl/lhash.h> 149#include <openssl/x509v3.h> 150#include <openssl/rand.h> 151#include <openssl/ocsp.h> 152#ifndef OPENSSL_NO_DH 153#include <openssl/dh.h> 154#endif 155#ifndef OPENSSL_NO_ENGINE 156#include <openssl/engine.h> 157#endif 158 159const char *SSL_version_str = OPENSSL_VERSION_TEXT; 160 161SSL3_ENC_METHOD ssl3_undef_enc_method = { 162 /* 163 * Evil casts, but these functions are only called if there's a 164 * library bug. 165 */ 166 .enc = (int (*)(SSL *, int))ssl_undefined_function, 167 .mac = (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, 168 .setup_key_block = ssl_undefined_function, 169 .generate_master_secret = (int (*)(SSL *, unsigned char *, 170 unsigned char *, int))ssl_undefined_function, 171 .change_cipher_state = (int (*)(SSL*, int))ssl_undefined_function, 172 .final_finish_mac = (int (*)(SSL *, const char*, int, 173 unsigned char *))ssl_undefined_function, 174 .finish_mac_length = 0, 175 .cert_verify_mac = (int (*)(SSL *, int, 176 unsigned char *))ssl_undefined_function, 177 .client_finished_label = NULL, 178 .client_finished_label_len = 0, 179 .server_finished_label = NULL, 180 .server_finished_label_len = 0, 181 .alert_value = (int (*)(int))ssl_undefined_function, 182 .export_keying_material = (int (*)(SSL *, unsigned char *, size_t, 183 const char *, size_t, const unsigned char *, size_t, 184 int use_context))ssl_undefined_function, 185}; 186 187int 188SSL_clear(SSL *s) 189{ 190 if (s->method == NULL) { 191 SSLerr(SSL_F_SSL_CLEAR, 192 SSL_R_NO_METHOD_SPECIFIED); 193 return (0); 194 } 195 196 if (ssl_clear_bad_session(s)) { 197 SSL_SESSION_free(s->session); 198 s->session = NULL; 199 } 200 201 s->error = 0; 202 s->hit = 0; 203 s->shutdown = 0; 204 205 if (s->renegotiate) { 206 SSLerr(SSL_F_SSL_CLEAR, 207 ERR_R_INTERNAL_ERROR); 208 return (0); 209 } 210 211 s->type = 0; 212 213 s->state = SSL_ST_BEFORE|((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT); 214 215 s->version = s->method->version; 216 s->client_version = s->version; 217 s->rwstate = SSL_NOTHING; 218 s->rstate = SSL_ST_READ_HEADER; 219#if 0 220 s->read_ahead = s->ctx->read_ahead; 221#endif 222 223 if (s->init_buf != NULL) { 224 BUF_MEM_free(s->init_buf); 225 s->init_buf = NULL; 226 } 227 228 ssl_clear_cipher_ctx(s); 229 ssl_clear_hash_ctx(&s->read_hash); 230 ssl_clear_hash_ctx(&s->write_hash); 231 232 s->first_packet = 0; 233 234#if 1 235 /* 236 * Check to see if we were changed into a different method, if 237 * so, revert back if we are not doing session-id reuse. 238 */ 239 if (!s->in_handshake && (s->session == NULL) && 240 (s->method != s->ctx->method)) { 241 s->method->ssl_free(s); 242 s->method = s->ctx->method; 243 if (!s->method->ssl_new(s)) 244 return (0); 245 } else 246#endif 247 s->method->ssl_clear(s); 248 return (1); 249} 250 251/* Used to change an SSL_CTXs default SSL method type */ 252int 253SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 254{ 255 STACK_OF(SSL_CIPHER) *sk; 256 257 ctx->method = meth; 258 259 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), 260 &(ctx->cipher_list_by_id), SSL_DEFAULT_CIPHER_LIST); 261 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { 262 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, 263 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 264 return (0); 265 } 266 return (1); 267} 268 269SSL * 270SSL_new(SSL_CTX *ctx) 271{ 272 SSL *s; 273 274 if (ctx == NULL) { 275 SSLerr(SSL_F_SSL_NEW, 276 SSL_R_NULL_SSL_CTX); 277 return (NULL); 278 } 279 if (ctx->method == NULL) { 280 SSLerr(SSL_F_SSL_NEW, 281 SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 282 return (NULL); 283 } 284 285 s = calloc(1, sizeof(SSL)); 286 if (s == NULL) 287 goto err; 288 289 290 s->options = ctx->options; 291 s->mode = ctx->mode; 292 s->max_cert_list = ctx->max_cert_list; 293 294 if (ctx->cert != NULL) { 295 /* 296 * Earlier library versions used to copy the pointer to 297 * the CERT, not its contents; only when setting new 298 * parameters for the per-SSL copy, ssl_cert_new would be 299 * called (and the direct reference to the per-SSL_CTX 300 * settings would be lost, but those still were indirectly 301 * accessed for various purposes, and for that reason they 302 * used to be known as s->ctx->default_cert). 303 * Now we don't look at the SSL_CTX's CERT after having 304 * duplicated it once. 305 */ 306 s->cert = ssl_cert_dup(ctx->cert); 307 if (s->cert == NULL) 308 goto err; 309 } else 310 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 311 312 s->read_ahead = ctx->read_ahead; 313 s->msg_callback = ctx->msg_callback; 314 s->msg_callback_arg = ctx->msg_callback_arg; 315 s->verify_mode = ctx->verify_mode; 316#if 0 317 s->verify_depth = ctx->verify_depth; 318#endif 319 s->sid_ctx_length = ctx->sid_ctx_length; 320 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 321 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); 322 s->verify_callback = ctx->default_verify_callback; 323 s->generate_session_id = ctx->generate_session_id; 324 325 s->param = X509_VERIFY_PARAM_new(); 326 if (!s->param) 327 goto err; 328 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 329#if 0 330 s->purpose = ctx->purpose; 331 s->trust = ctx->trust; 332#endif 333 s->quiet_shutdown = ctx->quiet_shutdown; 334 s->max_send_fragment = ctx->max_send_fragment; 335 336 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 337 s->ctx = ctx; 338#ifndef OPENSSL_NO_TLSEXT 339 s->tlsext_debug_cb = 0; 340 s->tlsext_debug_arg = NULL; 341 s->tlsext_ticket_expected = 0; 342 s->tlsext_status_type = -1; 343 s->tlsext_status_expected = 0; 344 s->tlsext_ocsp_ids = NULL; 345 s->tlsext_ocsp_exts = NULL; 346 s->tlsext_ocsp_resp = NULL; 347 s->tlsext_ocsp_resplen = -1; 348 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 349 s->initial_ctx = ctx; 350# ifndef OPENSSL_NO_NEXTPROTONEG 351 s->next_proto_negotiated = NULL; 352# endif 353#endif 354 355 s->verify_result = X509_V_OK; 356 357 s->method = ctx->method; 358 359 if (!s->method->ssl_new(s)) 360 goto err; 361 362 s->references = 1; 363 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; 364 365 SSL_clear(s); 366 367 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 368 369#ifndef OPENSSL_NO_PSK 370 s->psk_client_callback = ctx->psk_client_callback; 371 s->psk_server_callback = ctx->psk_server_callback; 372#endif 373 374 return (s); 375 err: 376 if (s != NULL) { 377 if (s->cert != NULL) 378 ssl_cert_free(s->cert); 379 if (s->ctx != NULL) 380 SSL_CTX_free(s->ctx); /* decrement reference count */ 381 free(s); 382 } 383 SSLerr(SSL_F_SSL_NEW, 384 ERR_R_MALLOC_FAILURE); 385 return (NULL); 386} 387 388int 389SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 390 unsigned int sid_ctx_len) 391{ 392 if (sid_ctx_len > sizeof ctx->sid_ctx) { 393 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, 394 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 395 return (0); 396 } 397 ctx->sid_ctx_length = sid_ctx_len; 398 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 399 400 return (1); 401} 402 403int 404SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 405 unsigned int sid_ctx_len) 406{ 407 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 408 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, 409 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 410 return (0); 411 } 412 ssl->sid_ctx_length = sid_ctx_len; 413 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 414 415 return (1); 416} 417 418int 419SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 420{ 421 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 422 ctx->generate_session_id = cb; 423 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 424 return (1); 425} 426 427int 428SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 429{ 430 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 431 ssl->generate_session_id = cb; 432 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 433 return (1); 434} 435 436int 437SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 438 unsigned int id_len) 439{ 440 /* 441 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 442 * shows how we can "construct" a session to give us the desired 443 * check - ie. to find if there's a session in the hash table 444 * that would conflict with any new session built out of this 445 * id/id_len and the ssl_version in use by this SSL. 446 */ 447 SSL_SESSION r, *p; 448 449 if (id_len > sizeof r.session_id) 450 return (0); 451 452 r.ssl_version = ssl->version; 453 r.session_id_length = id_len; 454 memcpy(r.session_id, id, id_len); 455 456 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 457 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r); 458 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 459 return (p != NULL); 460} 461 462int 463SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 464{ 465 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 466} 467 468int 469SSL_set_purpose(SSL *s, int purpose) 470{ 471 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 472} 473 474int 475SSL_CTX_set_trust(SSL_CTX *s, int trust) 476{ 477 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 478} 479 480int 481SSL_set_trust(SSL *s, int trust) 482{ 483 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 484} 485 486int 487SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 488{ 489 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 490} 491 492int 493SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 494{ 495 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 496} 497 498void 499SSL_free(SSL *s) 500{ 501 int i; 502 503 if (s == NULL) 504 return; 505 506 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 507 if (i > 0) 508 return; 509 510 if (s->param) 511 X509_VERIFY_PARAM_free(s->param); 512 513 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 514 515 if (s->bbio != NULL) { 516 /* If the buffering BIO is in place, pop it off */ 517 if (s->bbio == s->wbio) { 518 s->wbio = BIO_pop(s->wbio); 519 } 520 BIO_free(s->bbio); 521 s->bbio = NULL; 522 } 523 if (s->rbio != NULL) 524 BIO_free_all(s->rbio); 525 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 526 BIO_free_all(s->wbio); 527 528 if (s->init_buf != NULL) 529 BUF_MEM_free(s->init_buf); 530 531 /* add extra stuff */ 532 if (s->cipher_list != NULL) 533 sk_SSL_CIPHER_free(s->cipher_list); 534 if (s->cipher_list_by_id != NULL) 535 sk_SSL_CIPHER_free(s->cipher_list_by_id); 536 537 /* Make the next call work :-) */ 538 if (s->session != NULL) { 539 ssl_clear_bad_session(s); 540 SSL_SESSION_free(s->session); 541 } 542 543 ssl_clear_cipher_ctx(s); 544 ssl_clear_hash_ctx(&s->read_hash); 545 ssl_clear_hash_ctx(&s->write_hash); 546 547 if (s->cert != NULL) 548 ssl_cert_free(s->cert); 549 /* Free up if allocated */ 550 551#ifndef OPENSSL_NO_TLSEXT 552 if (s->tlsext_hostname) 553 free(s->tlsext_hostname); 554 if (s->initial_ctx) 555 SSL_CTX_free(s->initial_ctx); 556#ifndef OPENSSL_NO_EC 557 if (s->tlsext_ecpointformatlist) 558 free(s->tlsext_ecpointformatlist); 559 if (s->tlsext_ellipticcurvelist) 560 free(s->tlsext_ellipticcurvelist); 561#endif /* OPENSSL_NO_EC */ 562 if (s->tlsext_opaque_prf_input) 563 free(s->tlsext_opaque_prf_input); 564 if (s->tlsext_ocsp_exts) 565 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 566 X509_EXTENSION_free); 567 if (s->tlsext_ocsp_ids) 568 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 569 if (s->tlsext_ocsp_resp) 570 free(s->tlsext_ocsp_resp); 571#endif 572 573 if (s->client_CA != NULL) 574 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); 575 576 if (s->method != NULL) 577 s->method->ssl_free(s); 578 579 if (s->ctx) 580 SSL_CTX_free(s->ctx); 581 582 583#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 584 if (s->next_proto_negotiated) 585 free(s->next_proto_negotiated); 586#endif 587 588#ifndef OPENSSL_NO_SRTP 589 if (s->srtp_profiles) 590 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); 591#endif 592 593 free(s); 594} 595 596void 597SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 598{ 599 /* If the output buffering BIO is still in place, remove it */ 600 if (s->bbio != NULL) { 601 if (s->wbio == s->bbio) { 602 s->wbio = s->wbio->next_bio; 603 s->bbio->next_bio = NULL; 604 } 605 } 606 if ((s->rbio != NULL) && (s->rbio != rbio)) 607 BIO_free_all(s->rbio); 608 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 609 BIO_free_all(s->wbio); 610 s->rbio = rbio; 611 s->wbio = wbio; 612} 613 614BIO * 615SSL_get_rbio(const SSL *s) 616{ 617 return (s->rbio); 618} 619 620BIO * 621SSL_get_wbio(const SSL *s) 622{ 623 return (s->wbio); 624} 625 626int 627SSL_get_fd(const SSL *s) 628{ 629 return (SSL_get_rfd(s)); 630} 631 632int 633SSL_get_rfd(const SSL *s) 634{ 635 int ret = -1; 636 BIO *b, *r; 637 638 b = SSL_get_rbio(s); 639 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 640 if (r != NULL) 641 BIO_get_fd(r, &ret); 642 return (ret); 643} 644 645int 646SSL_get_wfd(const SSL *s) 647{ 648 int ret = -1; 649 BIO *b, *r; 650 651 b = SSL_get_wbio(s); 652 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 653 if (r != NULL) 654 BIO_get_fd(r, &ret); 655 return (ret); 656} 657 658int 659SSL_set_fd(SSL *s, int fd) 660{ 661 int ret = 0; 662 BIO *bio = NULL; 663 664 bio = BIO_new(BIO_s_socket()); 665 666 if (bio == NULL) { 667 SSLerr(SSL_F_SSL_SET_FD, 668 ERR_R_BUF_LIB); 669 goto err; 670 } 671 BIO_set_fd(bio, fd, BIO_NOCLOSE); 672 SSL_set_bio(s, bio, bio); 673 ret = 1; 674 err: 675 return (ret); 676} 677 678int 679SSL_set_wfd(SSL *s, int fd) 680{ 681 int ret = 0; 682 BIO *bio = NULL; 683 684 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 685 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 686 bio = BIO_new(BIO_s_socket()); 687 688 if (bio == NULL) { 689 SSLerr(SSL_F_SSL_SET_WFD, 690 ERR_R_BUF_LIB); 691 goto err; 692 } 693 BIO_set_fd(bio, fd, BIO_NOCLOSE); 694 SSL_set_bio(s, SSL_get_rbio(s), bio); 695 } else 696 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 697 ret = 1; 698 err: 699 return (ret); 700} 701 702int 703SSL_set_rfd(SSL *s, int fd) 704{ 705 int ret = 0; 706 BIO *bio = NULL; 707 708 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 709 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 710 bio = BIO_new(BIO_s_socket()); 711 712 if (bio == NULL) { 713 SSLerr(SSL_F_SSL_SET_RFD, 714 ERR_R_BUF_LIB); 715 goto err; 716 } 717 BIO_set_fd(bio, fd, BIO_NOCLOSE); 718 SSL_set_bio(s, bio, SSL_get_wbio(s)); 719 } else 720 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 721 ret = 1; 722 err: 723 return (ret); 724} 725 726 727/* return length of latest Finished message we sent, copy to 'buf' */ 728size_t 729SSL_get_finished(const SSL *s, void *buf, size_t count) 730{ 731 size_t ret = 0; 732 733 if (s->s3 != NULL) { 734 ret = s->s3->tmp.finish_md_len; 735 if (count > ret) 736 count = ret; 737 memcpy(buf, s->s3->tmp.finish_md, count); 738 } 739 return (ret); 740} 741 742/* return length of latest Finished message we expected, copy to 'buf' */ 743size_t 744SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 745{ 746 size_t ret = 0; 747 748 if (s->s3 != NULL) { 749 ret = s->s3->tmp.peer_finish_md_len; 750 if (count > ret) 751 count = ret; 752 memcpy(buf, s->s3->tmp.peer_finish_md, count); 753 } 754 return (ret); 755} 756 757 758int 759SSL_get_verify_mode(const SSL *s) 760{ 761 return (s->verify_mode); 762} 763 764int 765SSL_get_verify_depth(const SSL *s) 766{ 767 return (X509_VERIFY_PARAM_get_depth(s->param)); 768} 769 770int 771(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 772{ 773 return (s->verify_callback); 774} 775 776int 777SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 778{ 779 return (ctx->verify_mode); 780} 781 782int 783SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 784{ 785 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 786} 787 788int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 789{ 790 return (ctx->default_verify_callback); 791} 792 793void 794SSL_set_verify(SSL *s, int mode, 795 int (*callback)(int ok, X509_STORE_CTX *ctx)) 796{ 797 s->verify_mode = mode; 798 if (callback != NULL) 799 s->verify_callback = callback; 800} 801 802void 803SSL_set_verify_depth(SSL *s, int depth) 804{ 805 X509_VERIFY_PARAM_set_depth(s->param, depth); 806} 807 808void 809SSL_set_read_ahead(SSL *s, int yes) 810{ 811 s->read_ahead = yes; 812} 813 814int 815SSL_get_read_ahead(const SSL *s) 816{ 817 return (s->read_ahead); 818} 819 820int 821SSL_pending(const SSL *s) 822{ 823 /* 824 * SSL_pending cannot work properly if read-ahead is enabled 825 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 826 * and it is impossible to fix since SSL_pending cannot report 827 * errors that may be observed while scanning the new data. 828 * (Note that SSL_pending() is often used as a boolean value, 829 * so we'd better not return -1.) 830 */ 831 return (s->method->ssl_pending(s)); 832} 833 834X509 * 835SSL_get_peer_certificate(const SSL *s) 836{ 837 X509 *r; 838 839 if ((s == NULL) || (s->session == NULL)) 840 r = NULL; 841 else 842 r = s->session->peer; 843 844 if (r == NULL) 845 return (r); 846 847 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509); 848 849 return (r); 850} 851 852STACK_OF(X509) * 853SSL_get_peer_cert_chain(const SSL *s) 854{ 855 STACK_OF(X509) *r; 856 857 if ((s == NULL) || (s->session == NULL) || 858 (s->session->sess_cert == NULL)) 859 r = NULL; 860 else 861 r = s->session->sess_cert->cert_chain; 862 863 /* 864 * If we are a client, cert_chain includes the peer's own 865 * certificate; 866 * if we are a server, it does not. 867 */ 868 return (r); 869} 870 871/* 872 * Now in theory, since the calling process own 't' it should be safe to 873 * modify. We need to be able to read f without being hassled 874 */ 875void 876SSL_copy_session_id(SSL *t, const SSL *f) 877{ 878 CERT *tmp; 879 880 /* Do we need to to SSL locking? */ 881 SSL_set_session(t, SSL_get_session(f)); 882 883 /* 884 * What if we are setup as SSLv2 but want to talk SSLv3 or 885 * vice-versa. 886 */ 887 if (t->method != f->method) { 888 t->method->ssl_free(t); /* cleanup current */ 889 t->method=f->method; /* change method */ 890 t->method->ssl_new(t); /* setup new */ 891 } 892 893 tmp = t->cert; 894 if (f->cert != NULL) { 895 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 896 t->cert = f->cert; 897 } else 898 t->cert = NULL; 899 if (tmp != NULL) 900 ssl_cert_free(tmp); 901 SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length); 902} 903 904/* Fix this so it checks all the valid key/cert options */ 905int 906SSL_CTX_check_private_key(const SSL_CTX *ctx) 907{ 908 if ((ctx == NULL) || (ctx->cert == NULL) || 909 (ctx->cert->key->x509 == NULL)) { 910 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, 911 SSL_R_NO_CERTIFICATE_ASSIGNED); 912 return (0); 913 } 914 if (ctx->cert->key->privatekey == NULL) { 915 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, 916 SSL_R_NO_PRIVATE_KEY_ASSIGNED); 917 return (0); 918 } 919 return (X509_check_private_key(ctx->cert->key->x509, 920 ctx->cert->key->privatekey)); 921} 922 923/* Fix this function so that it takes an optional type parameter */ 924int 925SSL_check_private_key(const SSL *ssl) 926{ 927 if (ssl == NULL) { 928 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, 929 ERR_R_PASSED_NULL_PARAMETER); 930 return (0); 931 } 932 if (ssl->cert == NULL) { 933 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, 934 SSL_R_NO_CERTIFICATE_ASSIGNED); 935 return (0); 936 } 937 if (ssl->cert->key->x509 == NULL) { 938 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, 939 SSL_R_NO_CERTIFICATE_ASSIGNED); 940 return (0); 941 } 942 if (ssl->cert->key->privatekey == NULL) { 943 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, 944 SSL_R_NO_PRIVATE_KEY_ASSIGNED); 945 return (0); 946 } 947 return (X509_check_private_key(ssl->cert->key->x509, 948 ssl->cert->key->privatekey)); 949} 950 951int 952SSL_accept(SSL *s) 953{ 954 if (s->handshake_func == 0) 955 SSL_set_accept_state(s); /* Not properly initialized yet */ 956 957 return (s->method->ssl_accept(s)); 958} 959 960int 961SSL_connect(SSL *s) 962{ 963 if (s->handshake_func == 0) 964 SSL_set_connect_state(s); /* Not properly initialized yet */ 965 966 return (s->method->ssl_connect(s)); 967} 968 969long 970SSL_get_default_timeout(const SSL *s) 971{ 972 return (s->method->get_timeout()); 973} 974 975int 976SSL_read(SSL *s, void *buf, int num) 977{ 978 if (s->handshake_func == 0) { 979 SSLerr(SSL_F_SSL_READ, 980 SSL_R_UNINITIALIZED); 981 return (-1); 982 } 983 984 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 985 s->rwstate = SSL_NOTHING; 986 return (0); 987 } 988 return (s->method->ssl_read(s, buf, num)); 989} 990 991int 992SSL_peek(SSL *s, void *buf, int num) 993{ 994 if (s->handshake_func == 0) { 995 SSLerr(SSL_F_SSL_PEEK, 996 SSL_R_UNINITIALIZED); 997 return (-1); 998 } 999 1000 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 1001 return (0); 1002 } 1003 return (s->method->ssl_peek(s, buf, num)); 1004} 1005 1006int 1007SSL_write(SSL *s, const void *buf, int num) 1008{ 1009 if (s->handshake_func == 0) { 1010 SSLerr(SSL_F_SSL_WRITE, 1011 SSL_R_UNINITIALIZED); 1012 return (-1); 1013 } 1014 1015 if (s->shutdown & SSL_SENT_SHUTDOWN) { 1016 s->rwstate = SSL_NOTHING; 1017 SSLerr(SSL_F_SSL_WRITE, 1018 SSL_R_PROTOCOL_IS_SHUTDOWN); 1019 return (-1); 1020 } 1021 return (s->method->ssl_write(s, buf, num)); 1022} 1023 1024int 1025SSL_shutdown(SSL *s) 1026{ 1027 /* 1028 * Note that this function behaves differently from what one might 1029 * expect. Return values are 0 for no success (yet), 1030 * 1 for success; but calling it once is usually not enough, 1031 * even if blocking I/O is used (see ssl3_shutdown). 1032 */ 1033 1034 if (s->handshake_func == 0) { 1035 SSLerr(SSL_F_SSL_SHUTDOWN, 1036 SSL_R_UNINITIALIZED); 1037 return (-1); 1038 } 1039 1040 if ((s != NULL) && !SSL_in_init(s)) 1041 return (s->method->ssl_shutdown(s)); 1042 else 1043 return (1); 1044} 1045 1046int 1047SSL_renegotiate(SSL *s) 1048{ 1049 if (s->renegotiate == 0) 1050 s->renegotiate = 1; 1051 1052 s->new_session = 1; 1053 1054 return (s->method->ssl_renegotiate(s)); 1055} 1056 1057int 1058SSL_renegotiate_abbreviated(SSL *s) 1059{ 1060 if (s->renegotiate == 0) 1061 s->renegotiate = 1; 1062 1063 s->new_session = 0; 1064 1065 return (s->method->ssl_renegotiate(s)); 1066} 1067 1068int 1069SSL_renegotiate_pending(SSL *s) 1070{ 1071 /* 1072 * Becomes true when negotiation is requested; 1073 * false again once a handshake has finished. 1074 */ 1075 return (s->renegotiate != 0); 1076} 1077 1078long 1079SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1080{ 1081 long l; 1082 1083 switch (cmd) { 1084 case SSL_CTRL_GET_READ_AHEAD: 1085 return (s->read_ahead); 1086 case SSL_CTRL_SET_READ_AHEAD: 1087 l = s->read_ahead; 1088 s->read_ahead = larg; 1089 return (l); 1090 1091 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1092 s->msg_callback_arg = parg; 1093 return (1); 1094 1095 case SSL_CTRL_OPTIONS: 1096 return (s->options|=larg); 1097 case SSL_CTRL_CLEAR_OPTIONS: 1098 return (s->options&=~larg); 1099 case SSL_CTRL_MODE: 1100 return (s->mode|=larg); 1101 case SSL_CTRL_CLEAR_MODE: 1102 return (s->mode &=~larg); 1103 case SSL_CTRL_GET_MAX_CERT_LIST: 1104 return (s->max_cert_list); 1105 case SSL_CTRL_SET_MAX_CERT_LIST: 1106 l = s->max_cert_list; 1107 s->max_cert_list = larg; 1108 return (l); 1109 case SSL_CTRL_SET_MTU: 1110#ifndef OPENSSL_NO_DTLS1 1111 if (larg < (long)dtls1_min_mtu()) 1112 return (0); 1113#endif 1114 1115 if (SSL_version(s) == DTLS1_VERSION || 1116 SSL_version(s) == DTLS1_BAD_VER) { 1117 s->d1->mtu = larg; 1118 return (larg); 1119 } 1120 return (0); 1121 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1122 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1123 return (0); 1124 s->max_send_fragment = larg; 1125 return (1); 1126 case SSL_CTRL_GET_RI_SUPPORT: 1127 if (s->s3) 1128 return (s->s3->send_connection_binding); 1129 else return (0); 1130 default: 1131 return (s->method->ssl_ctrl(s, cmd, larg, parg)); 1132 } 1133} 1134 1135long 1136SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1137{ 1138 switch (cmd) { 1139 case SSL_CTRL_SET_MSG_CALLBACK: 1140 s->msg_callback = (void (*)(int write_p, int version, 1141 int content_type, const void *buf, size_t len, 1142 SSL *ssl, void *arg))(fp); 1143 return (1); 1144 1145 default: 1146 return (s->method->ssl_callback_ctrl(s, cmd, fp)); 1147 } 1148} 1149 1150LHASH_OF(SSL_SESSION) * 1151SSL_CTX_sessions(SSL_CTX *ctx) 1152{ 1153 return (ctx->sessions); 1154} 1155 1156long 1157SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1158{ 1159 long l; 1160 1161 switch (cmd) { 1162 case SSL_CTRL_GET_READ_AHEAD: 1163 return (ctx->read_ahead); 1164 case SSL_CTRL_SET_READ_AHEAD: 1165 l = ctx->read_ahead; 1166 ctx->read_ahead = larg; 1167 return (l); 1168 1169 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1170 ctx->msg_callback_arg = parg; 1171 return (1); 1172 1173 case SSL_CTRL_GET_MAX_CERT_LIST: 1174 return (ctx->max_cert_list); 1175 case SSL_CTRL_SET_MAX_CERT_LIST: 1176 l = ctx->max_cert_list; 1177 ctx->max_cert_list = larg; 1178 return (l); 1179 1180 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1181 l = ctx->session_cache_size; 1182 ctx->session_cache_size = larg; 1183 return (l); 1184 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1185 return (ctx->session_cache_size); 1186 case SSL_CTRL_SET_SESS_CACHE_MODE: 1187 l = ctx->session_cache_mode; 1188 ctx->session_cache_mode = larg; 1189 return (l); 1190 case SSL_CTRL_GET_SESS_CACHE_MODE: 1191 return (ctx->session_cache_mode); 1192 1193 case SSL_CTRL_SESS_NUMBER: 1194 return (lh_SSL_SESSION_num_items(ctx->sessions)); 1195 case SSL_CTRL_SESS_CONNECT: 1196 return (ctx->stats.sess_connect); 1197 case SSL_CTRL_SESS_CONNECT_GOOD: 1198 return (ctx->stats.sess_connect_good); 1199 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1200 return (ctx->stats.sess_connect_renegotiate); 1201 case SSL_CTRL_SESS_ACCEPT: 1202 return (ctx->stats.sess_accept); 1203 case SSL_CTRL_SESS_ACCEPT_GOOD: 1204 return (ctx->stats.sess_accept_good); 1205 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1206 return (ctx->stats.sess_accept_renegotiate); 1207 case SSL_CTRL_SESS_HIT: 1208 return (ctx->stats.sess_hit); 1209 case SSL_CTRL_SESS_CB_HIT: 1210 return (ctx->stats.sess_cb_hit); 1211 case SSL_CTRL_SESS_MISSES: 1212 return (ctx->stats.sess_miss); 1213 case SSL_CTRL_SESS_TIMEOUTS: 1214 return (ctx->stats.sess_timeout); 1215 case SSL_CTRL_SESS_CACHE_FULL: 1216 return (ctx->stats.sess_cache_full); 1217 case SSL_CTRL_OPTIONS: 1218 return (ctx->options|=larg); 1219 case SSL_CTRL_CLEAR_OPTIONS: 1220 return (ctx->options&=~larg); 1221 case SSL_CTRL_MODE: 1222 return (ctx->mode|=larg); 1223 case SSL_CTRL_CLEAR_MODE: 1224 return (ctx->mode&=~larg); 1225 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1226 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1227 return (0); 1228 ctx->max_send_fragment = larg; 1229 return (1); 1230 default: 1231 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); 1232 } 1233} 1234 1235long 1236SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1237{ 1238 switch (cmd) { 1239 case SSL_CTRL_SET_MSG_CALLBACK: 1240 ctx->msg_callback = (void (*)(int write_p, int version, 1241 int content_type, const void *buf, size_t len, SSL *ssl, 1242 void *arg))(fp); 1243 return (1); 1244 1245 default: 1246 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); 1247 } 1248} 1249 1250int 1251ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1252{ 1253 long l; 1254 1255 l = a->id - b->id; 1256 if (l == 0L) 1257 return (0); 1258 else 1259 return ((l > 0) ? 1:-1); 1260} 1261 1262int 1263ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1264 const SSL_CIPHER * const *bp) 1265{ 1266 long l; 1267 1268 l = (*ap)->id - (*bp)->id; 1269 if (l == 0L) 1270 return (0); 1271 else 1272 return ((l > 0) ? 1:-1); 1273} 1274 1275/* 1276 * Return a STACK of the ciphers available for the SSL and in order of 1277 * preference. 1278 */ 1279STACK_OF(SSL_CIPHER) * 1280SSL_get_ciphers(const SSL *s) 1281{ 1282 if (s != NULL) { 1283 if (s->cipher_list != NULL) { 1284 return (s->cipher_list); 1285 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { 1286 return (s->ctx->cipher_list); 1287 } 1288 } 1289 return (NULL); 1290} 1291 1292/* 1293 * Return a STACK of the ciphers available for the SSL and in order of 1294 * algorithm id. 1295 */ 1296STACK_OF(SSL_CIPHER) * 1297ssl_get_ciphers_by_id(SSL *s) 1298{ 1299 if (s != NULL) { 1300 if (s->cipher_list_by_id != NULL) { 1301 return (s->cipher_list_by_id); 1302 } else if ((s->ctx != NULL) && 1303 (s->ctx->cipher_list_by_id != NULL)) { 1304 return (s->ctx->cipher_list_by_id); 1305 } 1306 } 1307 return (NULL); 1308} 1309 1310/* The old interface to get the same thing as SSL_get_ciphers(). */ 1311const char * 1312SSL_get_cipher_list(const SSL *s, int n) 1313{ 1314 SSL_CIPHER *c; 1315 STACK_OF(SSL_CIPHER) *sk; 1316 1317 if (s == NULL) 1318 return (NULL); 1319 sk = SSL_get_ciphers(s); 1320 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1321 return (NULL); 1322 c = sk_SSL_CIPHER_value(sk, n); 1323 if (c == NULL) 1324 return (NULL); 1325 return (c->name); 1326} 1327 1328/* Specify the ciphers to be used by default by the SSL_CTX. */ 1329int 1330SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1331{ 1332 STACK_OF(SSL_CIPHER) *sk; 1333 1334 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1335 &ctx->cipher_list_by_id, str); 1336 /* 1337 * ssl_create_cipher_list may return an empty stack if it 1338 * was unable to find a cipher matching the given rule string 1339 * (for example if the rule string specifies a cipher which 1340 * has been disabled). This is not an error as far as 1341 * ssl_create_cipher_list is concerned, and hence 1342 * ctx->cipher_list and ctx->cipher_list_by_id has been 1343 * updated. 1344 */ 1345 if (sk == NULL) 1346 return (0); 1347 else if (sk_SSL_CIPHER_num(sk) == 0) { 1348 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, 1349 SSL_R_NO_CIPHER_MATCH); 1350 return (0); 1351 } 1352 return (1); 1353} 1354 1355/* Specify the ciphers to be used by the SSL. */ 1356int 1357SSL_set_cipher_list(SSL *s, const char *str) 1358{ 1359 STACK_OF(SSL_CIPHER) *sk; 1360 1361 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1362 &s->cipher_list_by_id, str); 1363 /* see comment in SSL_CTX_set_cipher_list */ 1364 if (sk == NULL) 1365 return (0); 1366 else if (sk_SSL_CIPHER_num(sk) == 0) { 1367 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, 1368 SSL_R_NO_CIPHER_MATCH); 1369 return (0); 1370 } 1371 return (1); 1372} 1373 1374/* works well for SSLv2, not so good for SSLv3 */ 1375char * 1376SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1377{ 1378 char *end; 1379 STACK_OF(SSL_CIPHER) *sk; 1380 SSL_CIPHER *c; 1381 size_t curlen = 0; 1382 int i; 1383 1384 if ((s->session == NULL) || (s->session->ciphers == NULL) || 1385 (len < 2)) 1386 return (NULL); 1387 1388 sk = s->session->ciphers; 1389 buf[0] = '\0'; 1390 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { 1391 c = sk_SSL_CIPHER_value(sk, i); 1392 end = buf + curlen; 1393 if (strlcat(buf, c->name, len) >= len || 1394 (curlen = strlcat(buf, ":", len)) >= len) { 1395 /* remove truncated cipher from list */ 1396 *end = '\0'; 1397 break; 1398 } 1399 } 1400 /* remove trailing colon */ 1401 if ((end = strrchr(buf, ':')) != NULL) 1402 *end = '\0'; 1403 return (buf); 1404} 1405 1406int 1407ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk, unsigned char *p, 1408 int (*put_cb)(const SSL_CIPHER *, unsigned char *)) 1409{ 1410 int i, j = 0; 1411 SSL_CIPHER *c; 1412 unsigned char *q; 1413 1414 if (sk == NULL) 1415 return (0); 1416 q = p; 1417 1418 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { 1419 c = sk_SSL_CIPHER_value(sk, i); 1420 /* Skip TLS v1.2 only ciphersuites if lower than v1.2 */ 1421 if ((c->algorithm_ssl & SSL_TLSV1_2) && 1422 (TLS1_get_client_version(s) < TLS1_2_VERSION)) 1423 continue; 1424#ifndef OPENSSL_NO_PSK 1425 /* with PSK there must be client callback set */ 1426 if (((c->algorithm_mkey & SSL_kPSK) || 1427 (c->algorithm_auth & SSL_aPSK)) && 1428 s->psk_client_callback == NULL) 1429 continue; 1430#endif /* OPENSSL_NO_PSK */ 1431 j = put_cb ? put_cb(c, p) : ssl_put_cipher_by_char(s, c, p); 1432 p += j; 1433 } 1434 /* 1435 * If p == q, no ciphers and caller indicates an error. Otherwise 1436 * add SCSV if not renegotiating. 1437 */ 1438 if (p != q && !s->renegotiate) { 1439 static SSL_CIPHER scsv = { 1440 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0 1441 }; 1442 j = put_cb ? put_cb(&scsv, p) : 1443 ssl_put_cipher_by_char(s, &scsv, p); 1444 p += j; 1445#ifdef OPENSSL_RI_DEBUG 1446 fprintf(stderr, "SCSV sent by client\n"); 1447#endif 1448 } 1449 1450 return (p - q); 1451} 1452 1453STACK_OF(SSL_CIPHER) * 1454ssl_bytes_to_cipher_list(SSL *s, unsigned char *p, int num, 1455 STACK_OF(SSL_CIPHER) **skp) 1456{ 1457 const SSL_CIPHER *c; 1458 STACK_OF(SSL_CIPHER) *sk; 1459 int i, n; 1460 1461 if (s->s3) 1462 s->s3->send_connection_binding = 0; 1463 1464 n = ssl_put_cipher_by_char(s, NULL, NULL); 1465 if ((num % n) != 0) { 1466 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, 1467 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1468 return (NULL); 1469 } 1470 if ((skp == NULL) || (*skp == NULL)) 1471 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1472 else { 1473 sk= *skp; 1474 sk_SSL_CIPHER_zero(sk); 1475 } 1476 1477 for (i = 0; i < num; i += n) { 1478 /* Check for SCSV */ 1479 if (s->s3 && (n != 3 || !p[0]) && 1480 (p[n - 2] == ((SSL3_CK_SCSV >> 8) & 0xff)) && 1481 (p[n - 1] == (SSL3_CK_SCSV & 0xff))) { 1482 /* SCSV fatal if renegotiating */ 1483 if (s->renegotiate) { 1484 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, 1485 SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING); 1486 ssl3_send_alert(s, SSL3_AL_FATAL, 1487 SSL_AD_HANDSHAKE_FAILURE); 1488 1489 goto err; 1490 } 1491 s->s3->send_connection_binding = 1; 1492 p += n; 1493#ifdef OPENSSL_RI_DEBUG 1494 fprintf(stderr, "SCSV received by server\n"); 1495#endif 1496 continue; 1497 } 1498 1499 c = ssl_get_cipher_by_char(s, p); 1500 p += n; 1501 if (c != NULL) { 1502 if (!sk_SSL_CIPHER_push(sk, c)) { 1503 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, 1504 ERR_R_MALLOC_FAILURE); 1505 goto err; 1506 } 1507 } 1508 } 1509 1510 if (skp != NULL) 1511 *skp = sk; 1512 return (sk); 1513 err: 1514 if ((skp == NULL) || (*skp == NULL)) 1515 sk_SSL_CIPHER_free(sk); 1516 return (NULL); 1517} 1518 1519 1520#ifndef OPENSSL_NO_TLSEXT 1521/* 1522 * Return a servername extension value if provided in Client Hello, or NULL. 1523 * So far, only host_name types are defined (RFC 3546). 1524 */ 1525const char * 1526SSL_get_servername(const SSL *s, const int type) 1527{ 1528 if (type != TLSEXT_NAMETYPE_host_name) 1529 return (NULL); 1530 1531 return (s->session && !s->tlsext_hostname ? 1532 s->session->tlsext_hostname : 1533 s->tlsext_hostname); 1534} 1535 1536int 1537SSL_get_servername_type(const SSL *s) 1538{ 1539 if (s->session && 1540 (!s->tlsext_hostname ? 1541 s->session->tlsext_hostname : s->tlsext_hostname)) 1542 return (TLSEXT_NAMETYPE_host_name); 1543 return (-1); 1544} 1545 1546# ifndef OPENSSL_NO_NEXTPROTONEG 1547/* 1548 * SSL_select_next_proto implements the standard protocol selection. It is 1549 * expected that this function is called from the callback set by 1550 * SSL_CTX_set_next_proto_select_cb. 1551 * 1552 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1553 * strings. The length byte itself is not included in the length. A byte 1554 * string of length 0 is invalid. No byte string may be truncated. 1555 * 1556 * The current, but experimental algorithm for selecting the protocol is: 1557 * 1558 * 1) If the server doesn't support NPN then this is indicated to the 1559 * callback. In this case, the client application has to abort the connection 1560 * or have a default application level protocol. 1561 * 1562 * 2) If the server supports NPN, but advertises an empty list then the 1563 * client selects the first protcol in its list, but indicates via the 1564 * API that this fallback case was enacted. 1565 * 1566 * 3) Otherwise, the client finds the first protocol in the server's list 1567 * that it supports and selects this protocol. This is because it's 1568 * assumed that the server has better information about which protocol 1569 * a client should use. 1570 * 1571 * 4) If the client doesn't support any of the server's advertised 1572 * protocols, then this is treated the same as case 2. 1573 * 1574 * It returns either 1575 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1576 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1577 */ 1578int 1579SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1580 const unsigned char *server, unsigned int server_len, 1581 const unsigned char *client, unsigned int client_len) 1582{ 1583 unsigned int i, j; 1584 const unsigned char *result; 1585 int status = OPENSSL_NPN_UNSUPPORTED; 1586 1587 /* 1588 * For each protocol in server preference order, 1589 * see if we support it. 1590 */ 1591 for (i = 0; i < server_len; ) { 1592 for (j = 0; j < client_len; ) { 1593 if (server[i] == client[j] && 1594 memcmp(&server[i + 1], 1595 &client[j + 1], server[i]) == 0) { 1596 /* We found a match */ 1597 result = &server[i]; 1598 status = OPENSSL_NPN_NEGOTIATED; 1599 goto found; 1600 } 1601 j += client[j]; 1602 j++; 1603 } 1604 i += server[i]; 1605 i++; 1606 } 1607 1608 /* There's no overlap between our protocols and the server's list. */ 1609 result = client; 1610 status = OPENSSL_NPN_NO_OVERLAP; 1611 1612 found: 1613 *out = (unsigned char *) result + 1; 1614 *outlen = result[0]; 1615 return (status); 1616} 1617 1618/* 1619 * SSL_get0_next_proto_negotiated sets *data and *len to point to the client's 1620 * requested protocol for this connection and returns 0. If the client didn't 1621 * request any protocol, then *data is set to NULL. 1622 * 1623 * Note that the client can request any protocol it chooses. The value returned 1624 * from this function need not be a member of the list of supported protocols 1625 * provided by the callback. 1626 */ 1627void 1628SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1629 unsigned *len) 1630{ 1631 *data = s->next_proto_negotiated; 1632 if (!*data) { 1633 *len = 0; 1634 } else { 1635 *len = s->next_proto_negotiated_len; 1636 } 1637} 1638 1639/* 1640 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a 1641 * TLS server needs a list of supported protocols for Next Protocol 1642 * Negotiation. The returned list must be in wire format. The list is returned 1643 * by setting |out| to point to it and |outlen| to its length. This memory will 1644 * not be modified, but one should assume that the SSL* keeps a reference to 1645 * it. 1646 * 1647 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. 1648 * Otherwise, no such extension will be included in the ServerHello. 1649 */ 1650void 1651SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1652 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1653{ 1654 ctx->next_protos_advertised_cb = cb; 1655 ctx->next_protos_advertised_cb_arg = arg; 1656} 1657 1658/* 1659 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a 1660 * client needs to select a protocol from the server's provided list. |out| 1661 * must be set to point to the selected protocol (which may be within |in|). 1662 * The length of the protocol name must be written into |outlen|. The server's 1663 * advertised protocols are provided in |in| and |inlen|. The callback can 1664 * assume that |in| is syntactically valid. 1665 * 1666 * The client must select a protocol. It is fatal to the connection if this 1667 * callback returns a value other than SSL_TLSEXT_ERR_OK. 1668 */ 1669void 1670SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1671 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1672 unsigned int inlen, void *arg), void *arg) 1673{ 1674 ctx->next_proto_select_cb = cb; 1675 ctx->next_proto_select_cb_arg = arg; 1676} 1677# endif 1678#endif 1679 1680int 1681SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1682 const char *label, size_t llen, const unsigned char *p, size_t plen, 1683 int use_context) 1684{ 1685 if (s->version < TLS1_VERSION) 1686 return (-1); 1687 1688 return (s->method->ssl3_enc->export_keying_material(s, out, olen, 1689 label, llen, p, plen, use_context)); 1690} 1691 1692static unsigned long 1693ssl_session_hash(const SSL_SESSION *a) 1694{ 1695 unsigned long l; 1696 1697 l = (unsigned long) 1698 ((unsigned int) a->session_id[0] )| 1699 ((unsigned int) a->session_id[1]<< 8L)| 1700 ((unsigned long)a->session_id[2]<<16L)| 1701 ((unsigned long)a->session_id[3]<<24L); 1702 return (l); 1703} 1704 1705/* 1706 * NB: If this function (or indeed the hash function which uses a sort of 1707 * coarser function than this one) is changed, ensure 1708 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1709 * able to construct an SSL_SESSION that will collide with any existing session 1710 * with a matching session ID. 1711 */ 1712static int 1713ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 1714{ 1715 if (a->ssl_version != b->ssl_version) 1716 return (1); 1717 if (a->session_id_length != b->session_id_length) 1718 return (1); 1719 return (memcmp(a->session_id, b->session_id, a->session_id_length)); 1720} 1721 1722/* 1723 * These wrapper functions should remain rather than redeclaring 1724 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1725 * variable. The reason is that the functions aren't static, they're exposed via 1726 * ssl.h. 1727 */ 1728static 1729IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION) 1730static 1731IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION) 1732 1733SSL_CTX * 1734SSL_CTX_new(const SSL_METHOD *meth) 1735{ 1736 SSL_CTX *ret = NULL; 1737 1738 if (meth == NULL) { 1739 SSLerr(SSL_F_SSL_CTX_NEW, 1740 SSL_R_NULL_SSL_METHOD_PASSED); 1741 return (NULL); 1742 } 1743 1744 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 1745 SSLerr(SSL_F_SSL_CTX_NEW, 1746 SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1747 goto err; 1748 } 1749 ret = calloc(1, sizeof(SSL_CTX)); 1750 if (ret == NULL) 1751 goto err; 1752 1753 ret->method = meth; 1754 1755 ret->cert_store = NULL; 1756 ret->session_cache_mode = SSL_SESS_CACHE_SERVER; 1757 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1758 ret->session_cache_head = NULL; 1759 ret->session_cache_tail = NULL; 1760 1761 /* We take the system default */ 1762 ret->session_timeout = meth->get_timeout(); 1763 1764 ret->new_session_cb = 0; 1765 ret->remove_session_cb = 0; 1766 ret->get_session_cb = 0; 1767 ret->generate_session_id = 0; 1768 1769 memset((char *)&ret->stats, 0, sizeof(ret->stats)); 1770 1771 ret->references = 1; 1772 ret->quiet_shutdown = 0; 1773 1774/* ret->cipher=NULL; 1775 ret->master_key=NULL; 1776*/ 1777 1778 ret->info_callback = NULL; 1779 1780 ret->app_verify_callback = 0; 1781 ret->app_verify_arg = NULL; 1782 1783 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 1784 ret->read_ahead = 0; 1785 ret->msg_callback = 0; 1786 ret->msg_callback_arg = NULL; 1787 ret->verify_mode = SSL_VERIFY_NONE; 1788#if 0 1789 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1790#endif 1791 ret->sid_ctx_length = 0; 1792 ret->default_verify_callback = NULL; 1793 if ((ret->cert = ssl_cert_new()) == NULL) 1794 goto err; 1795 1796 ret->default_passwd_callback = 0; 1797 ret->default_passwd_callback_userdata = NULL; 1798 ret->client_cert_cb = 0; 1799 ret->app_gen_cookie_cb = 0; 1800 ret->app_verify_cookie_cb = 0; 1801 1802 ret->sessions = lh_SSL_SESSION_new(); 1803 if (ret->sessions == NULL) 1804 goto err; 1805 ret->cert_store = X509_STORE_new(); 1806 if (ret->cert_store == NULL) 1807 goto err; 1808 1809 ssl_create_cipher_list(ret->method, &ret->cipher_list, 1810 &ret->cipher_list_by_id, SSL_DEFAULT_CIPHER_LIST); 1811 if (ret->cipher_list == NULL || 1812 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 1813 SSLerr(SSL_F_SSL_CTX_NEW, 1814 SSL_R_LIBRARY_HAS_NO_CIPHERS); 1815 goto err2; 1816 } 1817 1818 ret->param = X509_VERIFY_PARAM_new(); 1819 if (!ret->param) 1820 goto err; 1821 1822 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { 1823 SSLerr(SSL_F_SSL_CTX_NEW, 1824 SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1825 goto err2; 1826 } 1827 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { 1828 SSLerr(SSL_F_SSL_CTX_NEW, 1829 SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1830 goto err2; 1831 } 1832 1833 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) 1834 goto err; 1835 1836 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 1837 1838 ret->extra_certs = NULL; 1839 /* No compression for DTLS */ 1840 if (meth->version != DTLS1_VERSION) 1841 ret->comp_methods = SSL_COMP_get_compression_methods(); 1842 1843 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 1844 1845#ifndef OPENSSL_NO_TLSEXT 1846 ret->tlsext_servername_callback = 0; 1847 ret->tlsext_servername_arg = NULL; 1848 /* Setup RFC4507 ticket keys */ 1849 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0) 1850 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) 1851 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) 1852 ret->options |= SSL_OP_NO_TICKET; 1853 1854 ret->tlsext_status_cb = 0; 1855 ret->tlsext_status_arg = NULL; 1856 1857# ifndef OPENSSL_NO_NEXTPROTONEG 1858 ret->next_protos_advertised_cb = 0; 1859 ret->next_proto_select_cb = 0; 1860# endif 1861#endif 1862#ifndef OPENSSL_NO_PSK 1863 ret->psk_identity_hint = NULL; 1864 ret->psk_client_callback = NULL; 1865 ret->psk_server_callback = NULL; 1866#endif 1867#ifndef OPENSSL_NO_ENGINE 1868 ret->client_cert_engine = NULL; 1869#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1870#define eng_strx(x) #x 1871#define eng_str(x) eng_strx(x) 1872 /* Use specific client engine automatically... ignore errors */ 1873 { 1874 ENGINE *eng; 1875 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1876 if (!eng) { 1877 ERR_clear_error(); 1878 ENGINE_load_builtin_engines(); 1879 eng = ENGINE_by_id(eng_str( 1880 OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1881 } 1882 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1883 ERR_clear_error(); 1884 } 1885#endif 1886#endif 1887 /* 1888 * Default is to connect to non-RI servers. When RI is more widely 1889 * deployed might change this. 1890 */ 1891 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1892 1893 return (ret); 1894 err: 1895 SSLerr(SSL_F_SSL_CTX_NEW, 1896 ERR_R_MALLOC_FAILURE); 1897 err2: 1898 if (ret != NULL) 1899 SSL_CTX_free(ret); 1900 return (NULL); 1901} 1902 1903#if 0 1904static void 1905SSL_COMP_free(SSL_COMP *comp) 1906 { free(comp); 1907} 1908#endif 1909 1910void 1911SSL_CTX_free(SSL_CTX *a) 1912{ 1913 int i; 1914 1915 if (a == NULL) 1916 return; 1917 1918 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX); 1919 if (i > 0) 1920 return; 1921 1922 if (a->param) 1923 X509_VERIFY_PARAM_free(a->param); 1924 1925 /* 1926 * Free internal session cache. However: the remove_cb() may reference 1927 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1928 * after the sessions were flushed. 1929 * As the ex_data handling routines might also touch the session cache, 1930 * the most secure solution seems to be: empty (flush) the cache, then 1931 * free ex_data, then finally free the cache. 1932 * (See ticket [openssl.org #212].) 1933 */ 1934 if (a->sessions != NULL) 1935 SSL_CTX_flush_sessions(a, 0); 1936 1937 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); 1938 1939 if (a->sessions != NULL) 1940 lh_SSL_SESSION_free(a->sessions); 1941 1942 if (a->cert_store != NULL) 1943 X509_STORE_free(a->cert_store); 1944 if (a->cipher_list != NULL) 1945 sk_SSL_CIPHER_free(a->cipher_list); 1946 if (a->cipher_list_by_id != NULL) 1947 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1948 if (a->cert != NULL) 1949 ssl_cert_free(a->cert); 1950 if (a->client_CA != NULL) 1951 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); 1952 if (a->extra_certs != NULL) 1953 sk_X509_pop_free(a->extra_certs, X509_free); 1954#if 0 /* This should never be done, since it removes a global database */ 1955 if (a->comp_methods != NULL) 1956 sk_SSL_COMP_pop_free(a->comp_methods, SSL_COMP_free); 1957#else 1958 a->comp_methods = NULL; 1959#endif 1960 1961#ifndef OPENSSL_NO_SRTP 1962 if (a->srtp_profiles) 1963 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); 1964#endif 1965 1966#ifndef OPENSSL_NO_PSK 1967 if (a->psk_identity_hint) 1968 free(a->psk_identity_hint); 1969#endif 1970#ifndef OPENSSL_NO_ENGINE 1971 if (a->client_cert_engine) 1972 ENGINE_finish(a->client_cert_engine); 1973#endif 1974 1975 free(a); 1976} 1977 1978void 1979SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1980{ 1981 ctx->default_passwd_callback = cb; 1982} 1983 1984void 1985SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 1986{ 1987 ctx->default_passwd_callback_userdata = u; 1988} 1989 1990void 1991SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *, 1992 void *), void *arg) 1993{ 1994 ctx->app_verify_callback = cb; 1995 ctx->app_verify_arg = arg; 1996} 1997 1998void 1999SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 2000{ 2001 ctx->verify_mode = mode; 2002 ctx->default_verify_callback = cb; 2003} 2004 2005void 2006SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 2007{ 2008 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 2009} 2010 2011void 2012ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) 2013{ 2014 CERT_PKEY *cpk; 2015 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign; 2016 int rsa_enc_export, dh_rsa_export, dh_dsa_export; 2017 int rsa_tmp_export, dh_tmp_export, kl; 2018 unsigned long mask_k, mask_a, emask_k, emask_a; 2019 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size; 2020#ifndef OPENSSL_NO_ECDH 2021 int have_ecdh_tmp; 2022#endif 2023 X509 *x = NULL; 2024 EVP_PKEY *ecc_pkey = NULL; 2025 int signature_nid = 0, pk_nid = 0, md_nid = 0; 2026 2027 if (c == NULL) 2028 return; 2029 2030 kl = SSL_C_EXPORT_PKEYLENGTH(cipher); 2031 2032 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 2033 rsa_tmp_export = (c->rsa_tmp_cb != NULL || 2034 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 2035#ifndef OPENSSL_NO_DH 2036 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 2037 dh_tmp_export = (c->dh_tmp_cb != NULL || 2038 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 2039#else 2040 dh_tmp = dh_tmp_export = 0; 2041#endif 2042 2043#ifndef OPENSSL_NO_ECDH 2044 have_ecdh_tmp = (c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL); 2045#endif 2046 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]); 2047 rsa_enc = (cpk->x509 != NULL && cpk->privatekey != NULL); 2048 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 2049 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]); 2050 rsa_sign = (cpk->x509 != NULL && cpk->privatekey != NULL); 2051 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]); 2052 dsa_sign = (cpk->x509 != NULL && cpk->privatekey != NULL); 2053 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]); 2054 dh_rsa = (cpk->x509 != NULL && cpk->privatekey != NULL); 2055 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 2056 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]); 2057/* FIX THIS EAY EAY EAY */ 2058 dh_dsa = (cpk->x509 != NULL && cpk->privatekey != NULL); 2059 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 2060 cpk = &(c->pkeys[SSL_PKEY_ECC]); 2061 have_ecc_cert = (cpk->x509 != NULL && cpk->privatekey != NULL); 2062 mask_k = 0; 2063 mask_a = 0; 2064 emask_k = 0; 2065 emask_a = 0; 2066 2067 2068 2069#ifdef CIPHER_DEBUG 2070 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d " 2071 "rs=%d ds=%d dhr=%d dhd=%d\n", 2072 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, 2073 rsa_enc, rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa); 2074#endif 2075 2076 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 2077 if (cpk->x509 != NULL && cpk->privatekey !=NULL) { 2078 mask_k |= SSL_kGOST; 2079 mask_a |= SSL_aGOST01; 2080 } 2081 cpk = &(c->pkeys[SSL_PKEY_GOST94]); 2082 if (cpk->x509 != NULL && cpk->privatekey !=NULL) { 2083 mask_k |= SSL_kGOST; 2084 mask_a |= SSL_aGOST94; 2085 } 2086 2087 if (rsa_enc || (rsa_tmp && rsa_sign)) 2088 mask_k|=SSL_kRSA; 2089 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 2090 emask_k|=SSL_kRSA; 2091 2092#if 0 2093 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 2094 if ((dh_tmp || dh_rsa || dh_dsa) && 2095 (rsa_enc || rsa_sign || dsa_sign)) 2096 mask_k|=SSL_kEDH; 2097 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 2098 (rsa_enc || rsa_sign || dsa_sign)) 2099 emask_k|=SSL_kEDH; 2100#endif 2101 2102 if (dh_tmp_export) 2103 emask_k|=SSL_kEDH; 2104 2105 if (dh_tmp) 2106 mask_k|=SSL_kEDH; 2107 2108 if (dh_rsa) 2109 mask_k|=SSL_kDHr; 2110 if (dh_rsa_export) 2111 emask_k|=SSL_kDHr; 2112 2113 if (dh_dsa) 2114 mask_k|=SSL_kDHd; 2115 if (dh_dsa_export) 2116 emask_k|=SSL_kDHd; 2117 2118 if (rsa_enc || rsa_sign) { 2119 mask_a|=SSL_aRSA; 2120 emask_a|=SSL_aRSA; 2121 } 2122 2123 if (dsa_sign) { 2124 mask_a|=SSL_aDSS; 2125 emask_a|=SSL_aDSS; 2126 } 2127 2128 mask_a|=SSL_aNULL; 2129 emask_a|=SSL_aNULL; 2130 2131 2132 /* 2133 * An ECC certificate may be usable for ECDH and/or 2134 * ECDSA cipher suites depending on the key usage extension. 2135 */ 2136 if (have_ecc_cert) { 2137 /* This call populates extension flags (ex_flags) */ 2138 x = (c->pkeys[SSL_PKEY_ECC]).x509; 2139 X509_check_purpose(x, -1, 0); 2140 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 2141 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; 2142 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 2143 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; 2144 ecc_pkey = X509_get_pubkey(x); 2145 ecc_pkey_size = (ecc_pkey != NULL) ? 2146 EVP_PKEY_bits(ecc_pkey) : 0; 2147 EVP_PKEY_free(ecc_pkey); 2148 if ((x->sig_alg) && (x->sig_alg->algorithm)) { 2149 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 2150 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid); 2151 } 2152#ifndef OPENSSL_NO_ECDH 2153 if (ecdh_ok) { 2154 2155 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) { 2156 mask_k|=SSL_kECDHr; 2157 mask_a|=SSL_aECDH; 2158 if (ecc_pkey_size <= 163) { 2159 emask_k|=SSL_kECDHr; 2160 emask_a|=SSL_aECDH; 2161 } 2162 } 2163 2164 if (pk_nid == NID_X9_62_id_ecPublicKey) { 2165 mask_k|=SSL_kECDHe; 2166 mask_a|=SSL_aECDH; 2167 if (ecc_pkey_size <= 163) { 2168 emask_k|=SSL_kECDHe; 2169 emask_a|=SSL_aECDH; 2170 } 2171 } 2172 } 2173#endif 2174#ifndef OPENSSL_NO_ECDSA 2175 if (ecdsa_ok) { 2176 mask_a|=SSL_aECDSA; 2177 emask_a|=SSL_aECDSA; 2178 } 2179#endif 2180 } 2181 2182#ifndef OPENSSL_NO_ECDH 2183 if (have_ecdh_tmp) { 2184 mask_k|=SSL_kEECDH; 2185 emask_k|=SSL_kEECDH; 2186 } 2187#endif 2188 2189#ifndef OPENSSL_NO_PSK 2190 mask_k |= SSL_kPSK; 2191 mask_a |= SSL_aPSK; 2192 emask_k |= SSL_kPSK; 2193 emask_a |= SSL_aPSK; 2194#endif 2195 2196 c->mask_k = mask_k; 2197 c->mask_a = mask_a; 2198 c->export_mask_k = emask_k; 2199 c->export_mask_a = emask_a; 2200 c->valid = 1; 2201} 2202 2203/* This handy macro borrowed from crypto/x509v3/v3_purp.c */ 2204#define ku_reject(x, usage) \ 2205 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) 2206 2207#ifndef OPENSSL_NO_EC 2208 2209int 2210ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) 2211{ 2212 unsigned long alg_k, alg_a; 2213 EVP_PKEY *pkey = NULL; 2214 int keysize = 0; 2215 int signature_nid = 0, md_nid = 0, pk_nid = 0; 2216 const SSL_CIPHER *cs = s->s3->tmp.new_cipher; 2217 2218 alg_k = cs->algorithm_mkey; 2219 alg_a = cs->algorithm_auth; 2220 2221 if (SSL_C_IS_EXPORT(cs)) { 2222 /* ECDH key length in export ciphers must be <= 163 bits */ 2223 pkey = X509_get_pubkey(x); 2224 if (pkey == NULL) 2225 return (0); 2226 keysize = EVP_PKEY_bits(pkey); 2227 EVP_PKEY_free(pkey); 2228 if (keysize > 163) 2229 return (0); 2230 } 2231 2232 /* This call populates the ex_flags field correctly */ 2233 X509_check_purpose(x, -1, 0); 2234 if ((x->sig_alg) && (x->sig_alg->algorithm)) { 2235 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 2236 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid); 2237 } 2238 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) { 2239 /* key usage, if present, must allow key agreement */ 2240 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) { 2241 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, 2242 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT); 2243 return (0); 2244 } 2245 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < 2246 TLS1_2_VERSION) { 2247 /* signature alg must be ECDSA */ 2248 if (pk_nid != NID_X9_62_id_ecPublicKey) { 2249 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, 2250 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE); 2251 return (0); 2252 } 2253 } 2254 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < 2255 TLS1_2_VERSION) { 2256 /* signature alg must be RSA */ 2257 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) { 2258 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, 2259 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE); 2260 return (0); 2261 } 2262 } 2263 } 2264 if (alg_a & SSL_aECDSA) { 2265 /* key usage, if present, must allow signing */ 2266 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) { 2267 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, 2268 SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2269 return (0); 2270 } 2271 } 2272 2273 return (1); 2274 /* all checks are ok */ 2275} 2276 2277#endif 2278 2279/* THIS NEEDS CLEANING UP */ 2280CERT_PKEY * 2281ssl_get_server_send_pkey(const SSL *s) 2282{ 2283 unsigned long alg_k, alg_a; 2284 CERT *c; 2285 int i; 2286 2287 c = s->cert; 2288 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 2289 2290 alg_k = s->s3->tmp.new_cipher->algorithm_mkey; 2291 alg_a = s->s3->tmp.new_cipher->algorithm_auth; 2292 2293 if (alg_k & (SSL_kECDHr|SSL_kECDHe)) { 2294 /* 2295 * We don't need to look at SSL_kEECDH 2296 * since no certificate is needed for 2297 * anon ECDH and for authenticated 2298 * EECDH, the check for the auth 2299 * algorithm will set i correctly 2300 * NOTE: For ECDH-RSA, we need an ECC 2301 * not an RSA cert but for EECDH-RSA 2302 * we need an RSA cert. Placing the 2303 * checks for SSL_kECDH before RSA 2304 * checks ensures the correct cert is chosen. 2305 */ 2306 i = SSL_PKEY_ECC; 2307 } else if (alg_a & SSL_aECDSA) { 2308 i = SSL_PKEY_ECC; 2309 } else if (alg_k & SSL_kDHr) 2310 i = SSL_PKEY_DH_RSA; 2311 else if (alg_k & SSL_kDHd) 2312 i = SSL_PKEY_DH_DSA; 2313 else if (alg_a & SSL_aDSS) 2314 i = SSL_PKEY_DSA_SIGN; 2315 else if (alg_a & SSL_aRSA) { 2316 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 2317 i = SSL_PKEY_RSA_SIGN; 2318 else 2319 i = SSL_PKEY_RSA_ENC; 2320 } else if (alg_a & SSL_aKRB5) { 2321 /* VRS something else here? */ 2322 return (NULL); 2323 } else if (alg_a & SSL_aGOST94) 2324 i = SSL_PKEY_GOST94; 2325 else if (alg_a & SSL_aGOST01) 2326 i = SSL_PKEY_GOST01; 2327 else { /* if (alg_a & SSL_aNULL) */ 2328 SSLerr(SSL_F_SSL_GET_SERVER_SEND_PKEY, 2329 ERR_R_INTERNAL_ERROR); 2330 return (NULL); 2331 } 2332 2333 return (c->pkeys + i); 2334} 2335 2336X509 * 2337ssl_get_server_send_cert(const SSL *s) 2338{ 2339 CERT_PKEY *cpk; 2340 2341 cpk = ssl_get_server_send_pkey(s); 2342 if (!cpk) 2343 return (NULL); 2344 return (cpk->x509); 2345} 2346 2347EVP_PKEY * 2348ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd) 2349{ 2350 unsigned long alg_a; 2351 CERT *c; 2352 int idx = -1; 2353 2354 alg_a = cipher->algorithm_auth; 2355 c = s->cert; 2356 2357 if ((alg_a & SSL_aDSS) && 2358 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 2359 idx = SSL_PKEY_DSA_SIGN; 2360 else if (alg_a & SSL_aRSA) { 2361 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 2362 idx = SSL_PKEY_RSA_SIGN; 2363 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 2364 idx = SSL_PKEY_RSA_ENC; 2365 } else if ((alg_a & SSL_aECDSA) && 2366 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2367 idx = SSL_PKEY_ECC; 2368 if (idx == -1) { 2369 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, 2370 ERR_R_INTERNAL_ERROR); 2371 return (NULL); 2372 } 2373 if (pmd) 2374 *pmd = c->pkeys[idx].digest; 2375 return (c->pkeys[idx].privatekey); 2376} 2377 2378void 2379ssl_update_cache(SSL *s, int mode) 2380{ 2381 int i; 2382 2383 /* 2384 * If the session_id_length is 0, we are not supposed to cache it, 2385 * and it would be rather hard to do anyway :-) 2386 */ 2387 if (s->session->session_id_length == 0) 2388 return; 2389 2390 i = s->session_ctx->session_cache_mode; 2391 if ((i & mode) && (!s->hit) && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2392 || SSL_CTX_add_session(s->session_ctx, s->session)) 2393 && (s->session_ctx->new_session_cb != NULL)) { 2394 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2395 if (!s->session_ctx->new_session_cb(s, s->session)) 2396 SSL_SESSION_free(s->session); 2397 } 2398 2399 /* auto flush every 255 connections */ 2400 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2401 ((i & mode) == mode)) { 2402 if ((((mode & SSL_SESS_CACHE_CLIENT) ? 2403 s->session_ctx->stats.sess_connect_good : 2404 s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { 2405 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2406 } 2407 } 2408} 2409 2410const SSL_METHOD * 2411SSL_get_ssl_method(SSL *s) 2412{ 2413 return (s->method); 2414} 2415 2416int 2417SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) 2418{ 2419 int conn = -1; 2420 int ret = 1; 2421 2422 if (s->method != meth) { 2423 if (s->handshake_func != NULL) 2424 conn = (s->handshake_func == s->method->ssl_connect); 2425 2426 if (s->method->version == meth->version) 2427 s->method = meth; 2428 else { 2429 s->method->ssl_free(s); 2430 s->method = meth; 2431 ret = s->method->ssl_new(s); 2432 } 2433 2434 if (conn == 1) 2435 s->handshake_func = meth->ssl_connect; 2436 else if (conn == 0) 2437 s->handshake_func = meth->ssl_accept; 2438 } 2439 return (ret); 2440} 2441 2442int 2443SSL_get_error(const SSL *s, int i) 2444{ 2445 int reason; 2446 unsigned long l; 2447 BIO *bio; 2448 2449 if (i > 0) 2450 return (SSL_ERROR_NONE); 2451 2452 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2453 * etc, where we do encode the error */ 2454 if ((l = ERR_peek_error()) != 0) { 2455 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2456 return (SSL_ERROR_SYSCALL); 2457 else 2458 return (SSL_ERROR_SSL); 2459 } 2460 2461 if ((i < 0) && SSL_want_read(s)) { 2462 bio = SSL_get_rbio(s); 2463 if (BIO_should_read(bio)) 2464 return (SSL_ERROR_WANT_READ); 2465 else if (BIO_should_write(bio)) 2466 /* 2467 * This one doesn't make too much sense... We never 2468 * try to write to the rbio, and an application 2469 * program where rbio and wbio are separate couldn't 2470 * even know what it should wait for. However if we 2471 * ever set s->rwstate incorrectly (so that we have 2472 * SSL_want_read(s) instead of SSL_want_write(s)) 2473 * and rbio and wbio *are* the same, this test works 2474 * around that bug; so it might be safer to keep it. 2475 */ 2476 return (SSL_ERROR_WANT_WRITE); 2477 else if (BIO_should_io_special(bio)) { 2478 reason = BIO_get_retry_reason(bio); 2479 if (reason == BIO_RR_CONNECT) 2480 return (SSL_ERROR_WANT_CONNECT); 2481 else if (reason == BIO_RR_ACCEPT) 2482 return (SSL_ERROR_WANT_ACCEPT); 2483 else 2484 return (SSL_ERROR_SYSCALL); /* unknown */ 2485 } 2486 } 2487 2488 if ((i < 0) && SSL_want_write(s)) { 2489 bio = SSL_get_wbio(s); 2490 if (BIO_should_write(bio)) 2491 return (SSL_ERROR_WANT_WRITE); 2492 else if (BIO_should_read(bio)) { 2493 /* 2494 * See above (SSL_want_read(s) with 2495 * BIO_should_write(bio)) 2496 */ 2497 return (SSL_ERROR_WANT_READ); 2498 } else if (BIO_should_io_special(bio)) { 2499 reason = BIO_get_retry_reason(bio); 2500 if (reason == BIO_RR_CONNECT) 2501 return (SSL_ERROR_WANT_CONNECT); 2502 else if (reason == BIO_RR_ACCEPT) 2503 return (SSL_ERROR_WANT_ACCEPT); 2504 else 2505 return (SSL_ERROR_SYSCALL); 2506 } 2507 } 2508 if ((i < 0) && SSL_want_x509_lookup(s)) { 2509 return (SSL_ERROR_WANT_X509_LOOKUP); 2510 } 2511 2512 if (i == 0) { 2513 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2514 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2515 return (SSL_ERROR_ZERO_RETURN); 2516 } 2517 return (SSL_ERROR_SYSCALL); 2518} 2519 2520int 2521SSL_do_handshake(SSL *s) 2522{ 2523 int ret = 1; 2524 2525 if (s->handshake_func == NULL) { 2526 SSLerr(SSL_F_SSL_DO_HANDSHAKE, 2527 SSL_R_CONNECTION_TYPE_NOT_SET); 2528 return (-1); 2529 } 2530 2531 s->method->ssl_renegotiate_check(s); 2532 2533 if (SSL_in_init(s) || SSL_in_before(s)) { 2534 ret = s->handshake_func(s); 2535 } 2536 return (ret); 2537} 2538 2539/* 2540 * For the next 2 functions, SSL_clear() sets shutdown and so 2541 * one of these calls will reset it 2542 */ 2543void 2544SSL_set_accept_state(SSL *s) 2545{ 2546 s->server = 1; 2547 s->shutdown = 0; 2548 s->state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2549 s->handshake_func = s->method->ssl_accept; 2550 /* clear the current cipher */ 2551 ssl_clear_cipher_ctx(s); 2552 ssl_clear_hash_ctx(&s->read_hash); 2553 ssl_clear_hash_ctx(&s->write_hash); 2554} 2555 2556void 2557SSL_set_connect_state(SSL *s) 2558{ 2559 s->server = 0; 2560 s->shutdown = 0; 2561 s->state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2562 s->handshake_func = s->method->ssl_connect; 2563 /* clear the current cipher */ 2564 ssl_clear_cipher_ctx(s); 2565 ssl_clear_hash_ctx(&s->read_hash); 2566 ssl_clear_hash_ctx(&s->write_hash); 2567} 2568 2569int 2570ssl_undefined_function(SSL *s) 2571{ 2572 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, 2573 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2574 return (0); 2575} 2576 2577int 2578ssl_undefined_void_function(void) 2579{ 2580 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, 2581 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2582 return (0); 2583} 2584 2585int 2586ssl_undefined_const_function(const SSL *s) 2587{ 2588 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION, 2589 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2590 return (0); 2591} 2592 2593SSL_METHOD * 2594ssl_bad_method(int ver) 2595{ 2596 SSLerr(SSL_F_SSL_BAD_METHOD, 2597 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2598 return (NULL); 2599} 2600 2601const char * 2602SSL_get_version(const SSL *s) 2603{ 2604 if (s->version == TLS1_2_VERSION) 2605 return ("TLSv1.2"); 2606 else if (s->version == TLS1_1_VERSION) 2607 return ("TLSv1.1"); 2608 else if (s->version == TLS1_VERSION) 2609 return ("TLSv1"); 2610 else if (s->version == SSL3_VERSION) 2611 return ("SSLv3"); 2612 else 2613 return ("unknown"); 2614} 2615 2616SSL * 2617SSL_dup(SSL *s) 2618{ 2619 STACK_OF(X509_NAME) *sk; 2620 X509_NAME *xn; 2621 SSL *ret; 2622 int i; 2623 2624 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2625 return (NULL); 2626 2627 ret->version = s->version; 2628 ret->type = s->type; 2629 ret->method = s->method; 2630 2631 if (s->session != NULL) { 2632 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 2633 SSL_copy_session_id(ret, s); 2634 } else { 2635 /* 2636 * No session has been established yet, so we have to expect 2637 * that s->cert or ret->cert will be changed later -- 2638 * they should not both point to the same object, 2639 * and thus we can't use SSL_copy_session_id. 2640 */ 2641 2642 ret->method->ssl_free(ret); 2643 ret->method = s->method; 2644 ret->method->ssl_new(ret); 2645 2646 if (s->cert != NULL) { 2647 if (ret->cert != NULL) { 2648 ssl_cert_free(ret->cert); 2649 } 2650 ret->cert = ssl_cert_dup(s->cert); 2651 if (ret->cert == NULL) 2652 goto err; 2653 } 2654 2655 SSL_set_session_id_context(ret, 2656 s->sid_ctx, s->sid_ctx_length); 2657 } 2658 2659 ret->options = s->options; 2660 ret->mode = s->mode; 2661 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2662 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2663 ret->msg_callback = s->msg_callback; 2664 ret->msg_callback_arg = s->msg_callback_arg; 2665 SSL_set_verify(ret, SSL_get_verify_mode(s), 2666 SSL_get_verify_callback(s)); 2667 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2668 ret->generate_session_id = s->generate_session_id; 2669 2670 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2671 2672 ret->debug = s->debug; 2673 2674 /* copy app data, a little dangerous perhaps */ 2675 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2676 &ret->ex_data, &s->ex_data)) 2677 goto err; 2678 2679 /* setup rbio, and wbio */ 2680 if (s->rbio != NULL) { 2681 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2682 goto err; 2683 } 2684 if (s->wbio != NULL) { 2685 if (s->wbio != s->rbio) { 2686 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2687 goto err; 2688 } else 2689 ret->wbio = ret->rbio; 2690 } 2691 ret->rwstate = s->rwstate; 2692 ret->in_handshake = s->in_handshake; 2693 ret->handshake_func = s->handshake_func; 2694 ret->server = s->server; 2695 ret->renegotiate = s->renegotiate; 2696 ret->new_session = s->new_session; 2697 ret->quiet_shutdown = s->quiet_shutdown; 2698 ret->shutdown = s->shutdown; 2699 /* SSL_dup does not really work at any state, though */ 2700 ret->state=s->state; 2701 ret->rstate = s->rstate; 2702 2703 /* 2704 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2705 * ret->init_off 2706 */ 2707 ret->init_num = 0; 2708 2709 ret->hit = s->hit; 2710 2711 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2712 2713 /* dup the cipher_list and cipher_list_by_id stacks */ 2714 if (s->cipher_list != NULL) { 2715 if ((ret->cipher_list = 2716 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2717 goto err; 2718 } 2719 if (s->cipher_list_by_id != NULL) { 2720 if ((ret->cipher_list_by_id = 2721 sk_SSL_CIPHER_dup(s->cipher_list_by_id)) == NULL) 2722 goto err; 2723 } 2724 2725 /* Dup the client_CA list */ 2726 if (s->client_CA != NULL) { 2727 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 2728 ret->client_CA = sk; 2729 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2730 xn = sk_X509_NAME_value(sk, i); 2731 if (sk_X509_NAME_set(sk, i, 2732 X509_NAME_dup(xn)) == NULL) { 2733 X509_NAME_free(xn); 2734 goto err; 2735 } 2736 } 2737 } 2738 2739 if (0) { 2740 err: 2741 if (ret != NULL) 2742 SSL_free(ret); 2743 ret = NULL; 2744 } 2745 return (ret); 2746} 2747 2748void 2749ssl_clear_cipher_ctx(SSL *s) 2750{ 2751 if (s->enc_read_ctx != NULL) { 2752 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 2753 free(s->enc_read_ctx); 2754 s->enc_read_ctx = NULL; 2755 } 2756 if (s->enc_write_ctx != NULL) { 2757 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 2758 free(s->enc_write_ctx); 2759 s->enc_write_ctx = NULL; 2760 } 2761#ifndef OPENSSL_NO_COMP 2762 if (s->expand != NULL) { 2763 COMP_CTX_free(s->expand); 2764 s->expand = NULL; 2765 } 2766 if (s->compress != NULL) { 2767 COMP_CTX_free(s->compress); 2768 s->compress = NULL; 2769 } 2770#endif 2771} 2772 2773/* Fix this function so that it takes an optional type parameter */ 2774X509 * 2775SSL_get_certificate(const SSL *s) 2776{ 2777 if (s->cert != NULL) 2778 return (s->cert->key->x509); 2779 else 2780 return (NULL); 2781} 2782 2783/* Fix this function so that it takes an optional type parameter */ 2784EVP_PKEY * 2785SSL_get_privatekey(SSL *s) 2786{ 2787 if (s->cert != NULL) 2788 return (s->cert->key->privatekey); 2789 else 2790 return (NULL); 2791} 2792 2793const SSL_CIPHER * 2794SSL_get_current_cipher(const SSL *s) 2795{ 2796 if ((s->session != NULL) && (s->session->cipher != NULL)) 2797 return (s->session->cipher); 2798 return (NULL); 2799} 2800#ifdef OPENSSL_NO_COMP 2801const void * 2802SSL_get_current_compression(SSL *s) 2803{ 2804 return (NULL); 2805} 2806 2807const void * 2808SSL_get_current_expansion(SSL *s) 2809{ 2810 return (NULL); 2811} 2812#else 2813 2814const COMP_METHOD * 2815SSL_get_current_compression(SSL *s) 2816{ 2817 if (s->compress != NULL) 2818 return (s->compress->meth); 2819 return (NULL); 2820} 2821 2822const COMP_METHOD * 2823SSL_get_current_expansion(SSL *s) 2824{ 2825 if (s->expand != NULL) 2826 return (s->expand->meth); 2827 return (NULL); 2828} 2829#endif 2830 2831int 2832ssl_init_wbio_buffer(SSL *s, int push) 2833{ 2834 BIO *bbio; 2835 2836 if (s->bbio == NULL) { 2837 bbio = BIO_new(BIO_f_buffer()); 2838 if (bbio == NULL) 2839 return (0); 2840 s->bbio = bbio; 2841 } else { 2842 bbio = s->bbio; 2843 if (s->bbio == s->wbio) 2844 s->wbio = BIO_pop(s->wbio); 2845 } 2846 (void)BIO_reset(bbio); 2847/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2848 if (!BIO_set_read_buffer_size(bbio, 1)) { 2849 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, 2850 ERR_R_BUF_LIB); 2851 return (0); 2852 } 2853 if (push) { 2854 if (s->wbio != bbio) 2855 s->wbio = BIO_push(bbio, s->wbio); 2856 } else { 2857 if (s->wbio == bbio) 2858 s->wbio = BIO_pop(bbio); 2859 } 2860 return (1); 2861} 2862 2863void 2864ssl_free_wbio_buffer(SSL *s) 2865{ 2866 if (s->bbio == NULL) 2867 return; 2868 2869 if (s->bbio == s->wbio) { 2870 /* remove buffering */ 2871 s->wbio = BIO_pop(s->wbio); 2872 } 2873 BIO_free(s->bbio); 2874 s->bbio = NULL; 2875} 2876 2877void 2878SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 2879{ 2880 ctx->quiet_shutdown = mode; 2881} 2882 2883int 2884SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2885{ 2886 return (ctx->quiet_shutdown); 2887} 2888 2889void 2890SSL_set_quiet_shutdown(SSL *s, int mode) 2891{ 2892 s->quiet_shutdown = mode; 2893} 2894 2895int 2896SSL_get_quiet_shutdown(const SSL *s) 2897{ 2898 return (s->quiet_shutdown); 2899} 2900 2901void 2902SSL_set_shutdown(SSL *s, int mode) 2903{ 2904 s->shutdown = mode; 2905} 2906 2907int 2908SSL_get_shutdown(const SSL *s) 2909{ 2910 return (s->shutdown); 2911} 2912 2913int 2914SSL_version(const SSL *s) 2915{ 2916 return (s->version); 2917} 2918 2919SSL_CTX * 2920SSL_get_SSL_CTX(const SSL *ssl) 2921{ 2922 return (ssl->ctx); 2923} 2924 2925SSL_CTX * 2926SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2927{ 2928 if (ssl->ctx == ctx) 2929 return (ssl->ctx); 2930#ifndef OPENSSL_NO_TLSEXT 2931 if (ctx == NULL) 2932 ctx = ssl->initial_ctx; 2933#endif 2934 if (ssl->cert != NULL) 2935 ssl_cert_free(ssl->cert); 2936 ssl->cert = ssl_cert_dup(ctx->cert); 2937 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 2938 if (ssl->ctx != NULL) 2939 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2940 ssl->ctx = ctx; 2941 return (ssl->ctx); 2942} 2943 2944#ifndef OPENSSL_NO_STDIO 2945int 2946SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2947{ 2948 return (X509_STORE_set_default_paths(ctx->cert_store)); 2949} 2950 2951int 2952SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2953 const char *CApath) 2954{ 2955 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 2956} 2957#endif 2958 2959void 2960SSL_set_info_callback(SSL *ssl, 2961 void (*cb)(const SSL *ssl, int type, int val)) 2962{ 2963 ssl->info_callback = cb; 2964} 2965 2966void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val) 2967{ 2968 return (ssl->info_callback); 2969} 2970 2971int 2972SSL_state(const SSL *ssl) 2973{ 2974 return (ssl->state); 2975} 2976 2977void 2978SSL_set_state(SSL *ssl, int state) 2979{ 2980 ssl->state = state; 2981} 2982 2983void 2984SSL_set_verify_result(SSL *ssl, long arg) 2985{ 2986 ssl->verify_result = arg; 2987} 2988 2989long 2990SSL_get_verify_result(const SSL *ssl) 2991{ 2992 return (ssl->verify_result); 2993} 2994 2995int 2996SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2997 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2998{ 2999 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 3000 new_func, dup_func, free_func)); 3001} 3002 3003int 3004SSL_set_ex_data(SSL *s, int idx, void *arg) 3005{ 3006 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3007} 3008 3009void * 3010SSL_get_ex_data(const SSL *s, int idx) 3011{ 3012 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3013} 3014 3015int 3016SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3017 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3018{ 3019 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 3020 new_func, dup_func, free_func)); 3021} 3022 3023int 3024SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 3025{ 3026 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3027} 3028 3029void * 3030SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 3031{ 3032 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3033} 3034 3035int 3036ssl_ok(SSL *s) 3037{ 3038 return (1); 3039} 3040 3041X509_STORE * 3042SSL_CTX_get_cert_store(const SSL_CTX *ctx) 3043{ 3044 return (ctx->cert_store); 3045} 3046 3047void 3048SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 3049{ 3050 if (ctx->cert_store != NULL) 3051 X509_STORE_free(ctx->cert_store); 3052 ctx->cert_store = store; 3053} 3054 3055int 3056SSL_want(const SSL *s) 3057{ 3058 return (s->rwstate); 3059} 3060 3061/*! 3062 * \brief Set the callback for generating temporary RSA keys. 3063 * \param ctx the SSL context. 3064 * \param cb the callback 3065 */ 3066 3067void 3068SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, 3069 int is_export, 3070int keylength)) 3071{ 3072 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3073} 3074 3075void 3076SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, 3077 int is_export, 3078int keylength)) 3079{ 3080 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3081} 3082 3083#ifdef DOXYGEN 3084/*! 3085 * \brief The RSA temporary key callback function. 3086 * \param ssl the SSL session. 3087 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 3088 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 3089 * of the required key in bits. 3090 * \return the temporary RSA key. 3091 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 3092 */ 3093 3094RSA * 3095cb(SSL *ssl, int is_export, int keylength) 3096{} 3097#endif 3098 3099/*! 3100 * \brief Set the callback for generating temporary DH keys. 3101 * \param ctx the SSL context. 3102 * \param dh the callback 3103 */ 3104 3105#ifndef OPENSSL_NO_DH 3106void 3107SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 3108 int keylength)) 3109{ 3110 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3111} 3112 3113void 3114SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 3115 int keylength)) 3116{ 3117 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3118} 3119#endif 3120 3121#ifndef OPENSSL_NO_ECDH 3122void 3123SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 3124 int is_export, int keylength)) 3125{ 3126 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 3127 (void (*)(void))ecdh); 3128} 3129 3130void 3131SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 3132 int keylength)) 3133{ 3134 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 3135} 3136#endif 3137 3138#ifndef OPENSSL_NO_PSK 3139int 3140SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) 3141{ 3142 if (identity_hint != NULL && strlen(identity_hint) > 3143 PSK_MAX_IDENTITY_LEN) { 3144 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, 3145 SSL_R_DATA_LENGTH_TOO_LONG); 3146 return (0); 3147 } 3148 if (ctx->psk_identity_hint != NULL) 3149 free(ctx->psk_identity_hint); 3150 if (identity_hint != NULL) { 3151 ctx->psk_identity_hint = BUF_strdup(identity_hint); 3152 if (ctx->psk_identity_hint == NULL) 3153 return (0); 3154 } else 3155 ctx->psk_identity_hint = NULL; 3156 return (1); 3157} 3158 3159int 3160SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) 3161{ 3162 if (s == NULL) 3163 return (0); 3164 3165 if (s->session == NULL) 3166 return (1); /* session not created yet, ignored */ 3167 3168 if (identity_hint != NULL && strlen(identity_hint) > 3169 PSK_MAX_IDENTITY_LEN) { 3170 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, 3171 SSL_R_DATA_LENGTH_TOO_LONG); 3172 return (0); 3173 } 3174 if (s->session->psk_identity_hint != NULL) 3175 free(s->session->psk_identity_hint); 3176 if (identity_hint != NULL) { 3177 s->session->psk_identity_hint = BUF_strdup(identity_hint); 3178 if (s->session->psk_identity_hint == NULL) 3179 return (0); 3180 } else 3181 s->session->psk_identity_hint = NULL; 3182 return (1); 3183} 3184 3185const char * 3186SSL_get_psk_identity_hint(const SSL *s) 3187{ 3188 if (s == NULL || s->session == NULL) 3189 return (NULL); 3190 return (s->session->psk_identity_hint); 3191} 3192 3193const char * 3194SSL_get_psk_identity(const SSL *s) 3195{ 3196 if (s == NULL || s->session == NULL) 3197 return (NULL); 3198 return (s->session->psk_identity); 3199} 3200 3201void 3202SSL_set_psk_client_callback(SSL *s, 3203 unsigned int (*cb)(SSL *ssl, const char *hint, 3204 char *identity, unsigned int max_identity_len, unsigned char *psk, 3205 unsigned int max_psk_len)) 3206{ 3207 s->psk_client_callback = cb; 3208} 3209 3210void 3211SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, 3212 unsigned int (*cb)(SSL *ssl, const char *hint, 3213 char *identity, unsigned int max_identity_len, unsigned char *psk, 3214 unsigned int max_psk_len)) 3215{ 3216 ctx->psk_client_callback = cb; 3217} 3218 3219void 3220SSL_set_psk_server_callback(SSL *s, 3221 unsigned int (*cb)(SSL *ssl, const char *identity, 3222 unsigned char *psk, unsigned int max_psk_len)) 3223{ 3224 s->psk_server_callback = cb; 3225} 3226 3227void 3228SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, 3229 unsigned int (*cb)(SSL *ssl, const char *identity, 3230 unsigned char *psk, unsigned int max_psk_len)) 3231{ 3232 ctx->psk_server_callback = cb; 3233} 3234#endif 3235 3236void 3237SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 3238 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3239{ 3240 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 3241 (void (*)(void))cb); 3242} 3243 3244void 3245SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 3246 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3247{ 3248 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3249} 3250 3251/* 3252 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer 3253 * vairable, freeing EVP_MD_CTX previously stored in that variable, if 3254 * any. If EVP_MD pointer is passed, initializes ctx with this md 3255 * Returns newly allocated ctx; 3256 */ 3257EVP_MD_CTX * 3258ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) 3259{ 3260 ssl_clear_hash_ctx(hash); 3261 *hash = EVP_MD_CTX_create(); 3262 if (md) 3263 EVP_DigestInit_ex(*hash, md, NULL); 3264 return (*hash); 3265} 3266 3267void 3268ssl_clear_hash_ctx(EVP_MD_CTX **hash) 3269{ 3270 if (*hash) 3271 EVP_MD_CTX_destroy(*hash); 3272 *hash = NULL; 3273} 3274 3275void 3276SSL_set_debug(SSL *s, int debug) 3277{ 3278 s->debug = debug; 3279} 3280 3281int 3282SSL_cache_hit(SSL *s) 3283{ 3284 return (s->hit); 3285} 3286 3287IMPLEMENT_STACK_OF(SSL_CIPHER) 3288IMPLEMENT_STACK_OF(SSL_COMP) 3289IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, 3290 ssl_cipher_id); 3291