ssl_lib.c revision 1.44
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 (int (*)(SSL *, int))ssl_undefined_function, 167 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, 168 ssl_undefined_function, 169 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function, 170 (int (*)(SSL*, int))ssl_undefined_function, 171 (int (*)(SSL *, const char*, int, unsigned char *))ssl_undefined_function, 172 0, /* finish_mac_length */ 173 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function, 174 NULL, /* client_finished_label */ 175 0, /* client_finished_label_len */ 176 NULL, /* server_finished_label */ 177 0, /* server_finished_label_len */ 178 (int (*)(int))ssl_undefined_function, 179 (int (*)(SSL *, unsigned char *, size_t, const char *, 180 size_t, const unsigned char *, size_t, 181 int use_context)) ssl_undefined_function, 182}; 183 184int 185SSL_clear(SSL *s) 186{ 187 if (s->method == NULL) { 188 SSLerr(SSL_F_SSL_CLEAR, 189 SSL_R_NO_METHOD_SPECIFIED); 190 return (0); 191 } 192 193 if (ssl_clear_bad_session(s)) { 194 SSL_SESSION_free(s->session); 195 s->session = NULL; 196 } 197 198 s->error = 0; 199 s->hit = 0; 200 s->shutdown = 0; 201 202 if (s->renegotiate) { 203 SSLerr(SSL_F_SSL_CLEAR, 204 ERR_R_INTERNAL_ERROR); 205 return (0); 206 } 207 208 s->type = 0; 209 210 s->state = SSL_ST_BEFORE|((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT); 211 212 s->version = s->method->version; 213 s->client_version = s->version; 214 s->rwstate = SSL_NOTHING; 215 s->rstate = SSL_ST_READ_HEADER; 216#if 0 217 s->read_ahead = s->ctx->read_ahead; 218#endif 219 220 if (s->init_buf != NULL) { 221 BUF_MEM_free(s->init_buf); 222 s->init_buf = NULL; 223 } 224 225 ssl_clear_cipher_ctx(s); 226 ssl_clear_hash_ctx(&s->read_hash); 227 ssl_clear_hash_ctx(&s->write_hash); 228 229 s->first_packet = 0; 230 231#if 1 232 /* 233 * Check to see if we were changed into a different method, if 234 * so, revert back if we are not doing session-id reuse. 235 */ 236 if (!s->in_handshake && (s->session == NULL) && 237 (s->method != s->ctx->method)) { 238 s->method->ssl_free(s); 239 s->method = s->ctx->method; 240 if (!s->method->ssl_new(s)) 241 return (0); 242 } else 243#endif 244 s->method->ssl_clear(s); 245 return (1); 246} 247 248/* Used to change an SSL_CTXs default SSL method type */ 249int 250SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 251{ 252 STACK_OF(SSL_CIPHER) *sk; 253 254 ctx->method = meth; 255 256 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), 257 &(ctx->cipher_list_by_id), SSL_DEFAULT_CIPHER_LIST); 258 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { 259 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, 260 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 261 return (0); 262 } 263 return (1); 264} 265 266SSL * 267SSL_new(SSL_CTX *ctx) 268{ 269 SSL *s; 270 271 if (ctx == NULL) { 272 SSLerr(SSL_F_SSL_NEW, 273 SSL_R_NULL_SSL_CTX); 274 return (NULL); 275 } 276 if (ctx->method == NULL) { 277 SSLerr(SSL_F_SSL_NEW, 278 SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 279 return (NULL); 280 } 281 282 s = calloc(1, sizeof(SSL)); 283 if (s == NULL) 284 goto err; 285 286 287 s->options = ctx->options; 288 s->mode = ctx->mode; 289 s->max_cert_list = ctx->max_cert_list; 290 291 if (ctx->cert != NULL) { 292 /* 293 * Earlier library versions used to copy the pointer to 294 * the CERT, not its contents; only when setting new 295 * parameters for the per-SSL copy, ssl_cert_new would be 296 * called (and the direct reference to the per-SSL_CTX 297 * settings would be lost, but those still were indirectly 298 * accessed for various purposes, and for that reason they 299 * used to be known as s->ctx->default_cert). 300 * Now we don't look at the SSL_CTX's CERT after having 301 * duplicated it once. 302 */ 303 s->cert = ssl_cert_dup(ctx->cert); 304 if (s->cert == NULL) 305 goto err; 306 } else 307 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 308 309 s->read_ahead = ctx->read_ahead; 310 s->msg_callback = ctx->msg_callback; 311 s->msg_callback_arg = ctx->msg_callback_arg; 312 s->verify_mode = ctx->verify_mode; 313#if 0 314 s->verify_depth = ctx->verify_depth; 315#endif 316 s->sid_ctx_length = ctx->sid_ctx_length; 317 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 318 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); 319 s->verify_callback = ctx->default_verify_callback; 320 s->generate_session_id = ctx->generate_session_id; 321 322 s->param = X509_VERIFY_PARAM_new(); 323 if (!s->param) 324 goto err; 325 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 326#if 0 327 s->purpose = ctx->purpose; 328 s->trust = ctx->trust; 329#endif 330 s->quiet_shutdown = ctx->quiet_shutdown; 331 s->max_send_fragment = ctx->max_send_fragment; 332 333 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 334 s->ctx = ctx; 335#ifndef OPENSSL_NO_TLSEXT 336 s->tlsext_debug_cb = 0; 337 s->tlsext_debug_arg = NULL; 338 s->tlsext_ticket_expected = 0; 339 s->tlsext_status_type = -1; 340 s->tlsext_status_expected = 0; 341 s->tlsext_ocsp_ids = NULL; 342 s->tlsext_ocsp_exts = NULL; 343 s->tlsext_ocsp_resp = NULL; 344 s->tlsext_ocsp_resplen = -1; 345 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 346 s->initial_ctx = ctx; 347# ifndef OPENSSL_NO_NEXTPROTONEG 348 s->next_proto_negotiated = NULL; 349# endif 350#endif 351 352 s->verify_result = X509_V_OK; 353 354 s->method = ctx->method; 355 356 if (!s->method->ssl_new(s)) 357 goto err; 358 359 s->references = 1; 360 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; 361 362 SSL_clear(s); 363 364 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 365 366#ifndef OPENSSL_NO_PSK 367 s->psk_client_callback = ctx->psk_client_callback; 368 s->psk_server_callback = ctx->psk_server_callback; 369#endif 370 371 return (s); 372 err: 373 if (s != NULL) { 374 if (s->cert != NULL) 375 ssl_cert_free(s->cert); 376 if (s->ctx != NULL) 377 SSL_CTX_free(s->ctx); /* decrement reference count */ 378 free(s); 379 } 380 SSLerr(SSL_F_SSL_NEW, 381 ERR_R_MALLOC_FAILURE); 382 return (NULL); 383} 384 385int 386SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 387 unsigned int sid_ctx_len) 388{ 389 if (sid_ctx_len > sizeof ctx->sid_ctx) { 390 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, 391 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 392 return (0); 393 } 394 ctx->sid_ctx_length = sid_ctx_len; 395 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 396 397 return (1); 398} 399 400int 401SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 402 unsigned int sid_ctx_len) 403{ 404 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 405 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, 406 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 407 return (0); 408 } 409 ssl->sid_ctx_length = sid_ctx_len; 410 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 411 412 return (1); 413} 414 415int 416SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 417{ 418 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 419 ctx->generate_session_id = cb; 420 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 421 return (1); 422} 423 424int 425SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 426{ 427 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 428 ssl->generate_session_id = cb; 429 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 430 return (1); 431} 432 433int 434SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 435 unsigned int id_len) 436{ 437 /* 438 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 439 * shows how we can "construct" a session to give us the desired 440 * check - ie. to find if there's a session in the hash table 441 * that would conflict with any new session built out of this 442 * id/id_len and the ssl_version in use by this SSL. 443 */ 444 SSL_SESSION r, *p; 445 446 if (id_len > sizeof r.session_id) 447 return (0); 448 449 r.ssl_version = ssl->version; 450 r.session_id_length = id_len; 451 memcpy(r.session_id, id, id_len); 452 453 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 454 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r); 455 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 456 return (p != NULL); 457} 458 459int 460SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 461{ 462 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 463} 464 465int 466SSL_set_purpose(SSL *s, int purpose) 467{ 468 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose)); 469} 470 471int 472SSL_CTX_set_trust(SSL_CTX *s, int trust) 473{ 474 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 475} 476 477int 478SSL_set_trust(SSL *s, int trust) 479{ 480 return (X509_VERIFY_PARAM_set_trust(s->param, trust)); 481} 482 483int 484SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 485{ 486 return (X509_VERIFY_PARAM_set1(ctx->param, vpm)); 487} 488 489int 490SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 491{ 492 return (X509_VERIFY_PARAM_set1(ssl->param, vpm)); 493} 494 495void 496SSL_free(SSL *s) 497{ 498 int i; 499 500 if (s == NULL) 501 return; 502 503 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 504 if (i > 0) 505 return; 506 507 if (s->param) 508 X509_VERIFY_PARAM_free(s->param); 509 510 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 511 512 if (s->bbio != NULL) { 513 /* If the buffering BIO is in place, pop it off */ 514 if (s->bbio == s->wbio) { 515 s->wbio = BIO_pop(s->wbio); 516 } 517 BIO_free(s->bbio); 518 s->bbio = NULL; 519 } 520 if (s->rbio != NULL) 521 BIO_free_all(s->rbio); 522 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 523 BIO_free_all(s->wbio); 524 525 if (s->init_buf != NULL) 526 BUF_MEM_free(s->init_buf); 527 528 /* add extra stuff */ 529 if (s->cipher_list != NULL) 530 sk_SSL_CIPHER_free(s->cipher_list); 531 if (s->cipher_list_by_id != NULL) 532 sk_SSL_CIPHER_free(s->cipher_list_by_id); 533 534 /* Make the next call work :-) */ 535 if (s->session != NULL) { 536 ssl_clear_bad_session(s); 537 SSL_SESSION_free(s->session); 538 } 539 540 ssl_clear_cipher_ctx(s); 541 ssl_clear_hash_ctx(&s->read_hash); 542 ssl_clear_hash_ctx(&s->write_hash); 543 544 if (s->cert != NULL) 545 ssl_cert_free(s->cert); 546 /* Free up if allocated */ 547 548#ifndef OPENSSL_NO_TLSEXT 549 if (s->tlsext_hostname) 550 free(s->tlsext_hostname); 551 if (s->initial_ctx) 552 SSL_CTX_free(s->initial_ctx); 553#ifndef OPENSSL_NO_EC 554 if (s->tlsext_ecpointformatlist) 555 free(s->tlsext_ecpointformatlist); 556 if (s->tlsext_ellipticcurvelist) 557 free(s->tlsext_ellipticcurvelist); 558#endif /* OPENSSL_NO_EC */ 559 if (s->tlsext_opaque_prf_input) 560 free(s->tlsext_opaque_prf_input); 561 if (s->tlsext_ocsp_exts) 562 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 563 X509_EXTENSION_free); 564 if (s->tlsext_ocsp_ids) 565 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 566 if (s->tlsext_ocsp_resp) 567 free(s->tlsext_ocsp_resp); 568#endif 569 570 if (s->client_CA != NULL) 571 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); 572 573 if (s->method != NULL) 574 s->method->ssl_free(s); 575 576 if (s->ctx) 577 SSL_CTX_free(s->ctx); 578 579 580#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 581 if (s->next_proto_negotiated) 582 free(s->next_proto_negotiated); 583#endif 584 585#ifndef OPENSSL_NO_SRTP 586 if (s->srtp_profiles) 587 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); 588#endif 589 590 free(s); 591} 592 593void 594SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 595{ 596 /* If the output buffering BIO is still in place, remove it */ 597 if (s->bbio != NULL) { 598 if (s->wbio == s->bbio) { 599 s->wbio = s->wbio->next_bio; 600 s->bbio->next_bio = NULL; 601 } 602 } 603 if ((s->rbio != NULL) && (s->rbio != rbio)) 604 BIO_free_all(s->rbio); 605 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 606 BIO_free_all(s->wbio); 607 s->rbio = rbio; 608 s->wbio = wbio; 609} 610 611BIO * 612SSL_get_rbio(const SSL *s) 613{ 614 return (s->rbio); 615} 616 617BIO * 618SSL_get_wbio(const SSL *s) 619{ 620 return (s->wbio); 621} 622 623int 624SSL_get_fd(const SSL *s) 625{ 626 return (SSL_get_rfd(s)); 627} 628 629int 630SSL_get_rfd(const SSL *s) 631{ 632 int ret = -1; 633 BIO *b, *r; 634 635 b = SSL_get_rbio(s); 636 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 637 if (r != NULL) 638 BIO_get_fd(r, &ret); 639 return (ret); 640} 641 642int 643SSL_get_wfd(const SSL *s) 644{ 645 int ret = -1; 646 BIO *b, *r; 647 648 b = SSL_get_wbio(s); 649 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 650 if (r != NULL) 651 BIO_get_fd(r, &ret); 652 return (ret); 653} 654 655int 656SSL_set_fd(SSL *s, int fd) 657{ 658 int ret = 0; 659 BIO *bio = NULL; 660 661 bio = BIO_new(BIO_s_socket()); 662 663 if (bio == NULL) { 664 SSLerr(SSL_F_SSL_SET_FD, 665 ERR_R_BUF_LIB); 666 goto err; 667 } 668 BIO_set_fd(bio, fd, BIO_NOCLOSE); 669 SSL_set_bio(s, bio, bio); 670 ret = 1; 671 err: 672 return (ret); 673} 674 675int 676SSL_set_wfd(SSL *s, int fd) 677{ 678 int ret = 0; 679 BIO *bio = NULL; 680 681 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 682 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 683 bio = BIO_new(BIO_s_socket()); 684 685 if (bio == NULL) { 686 SSLerr(SSL_F_SSL_SET_WFD, 687 ERR_R_BUF_LIB); 688 goto err; 689 } 690 BIO_set_fd(bio, fd, BIO_NOCLOSE); 691 SSL_set_bio(s, SSL_get_rbio(s), bio); 692 } else 693 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 694 ret = 1; 695 err: 696 return (ret); 697} 698 699int 700SSL_set_rfd(SSL *s, int fd) 701{ 702 int ret = 0; 703 BIO *bio = NULL; 704 705 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 706 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 707 bio = BIO_new(BIO_s_socket()); 708 709 if (bio == NULL) { 710 SSLerr(SSL_F_SSL_SET_RFD, 711 ERR_R_BUF_LIB); 712 goto err; 713 } 714 BIO_set_fd(bio, fd, BIO_NOCLOSE); 715 SSL_set_bio(s, bio, SSL_get_wbio(s)); 716 } else 717 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 718 ret = 1; 719 err: 720 return (ret); 721} 722 723 724/* return length of latest Finished message we sent, copy to 'buf' */ 725size_t 726SSL_get_finished(const SSL *s, void *buf, size_t count) 727{ 728 size_t ret = 0; 729 730 if (s->s3 != NULL) { 731 ret = s->s3->tmp.finish_md_len; 732 if (count > ret) 733 count = ret; 734 memcpy(buf, s->s3->tmp.finish_md, count); 735 } 736 return (ret); 737} 738 739/* return length of latest Finished message we expected, copy to 'buf' */ 740size_t 741SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 742{ 743 size_t ret = 0; 744 745 if (s->s3 != NULL) { 746 ret = s->s3->tmp.peer_finish_md_len; 747 if (count > ret) 748 count = ret; 749 memcpy(buf, s->s3->tmp.peer_finish_md, count); 750 } 751 return (ret); 752} 753 754 755int 756SSL_get_verify_mode(const SSL *s) 757{ 758 return (s->verify_mode); 759} 760 761int 762SSL_get_verify_depth(const SSL *s) 763{ 764 return (X509_VERIFY_PARAM_get_depth(s->param)); 765} 766 767int 768(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 769{ 770 return (s->verify_callback); 771} 772 773int 774SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 775{ 776 return (ctx->verify_mode); 777} 778 779int 780SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 781{ 782 return (X509_VERIFY_PARAM_get_depth(ctx->param)); 783} 784 785int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 786{ 787 return (ctx->default_verify_callback); 788} 789 790void 791SSL_set_verify(SSL *s, int mode, 792 int (*callback)(int ok, X509_STORE_CTX *ctx)) 793{ 794 s->verify_mode = mode; 795 if (callback != NULL) 796 s->verify_callback = callback; 797} 798 799void 800SSL_set_verify_depth(SSL *s, int depth) 801{ 802 X509_VERIFY_PARAM_set_depth(s->param, depth); 803} 804 805void 806SSL_set_read_ahead(SSL *s, int yes) 807{ 808 s->read_ahead = yes; 809} 810 811int 812SSL_get_read_ahead(const SSL *s) 813{ 814 return (s->read_ahead); 815} 816 817int 818SSL_pending(const SSL *s) 819{ 820 /* 821 * SSL_pending cannot work properly if read-ahead is enabled 822 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 823 * and it is impossible to fix since SSL_pending cannot report 824 * errors that may be observed while scanning the new data. 825 * (Note that SSL_pending() is often used as a boolean value, 826 * so we'd better not return -1.) 827 */ 828 return (s->method->ssl_pending(s)); 829} 830 831X509 * 832SSL_get_peer_certificate(const SSL *s) 833{ 834 X509 *r; 835 836 if ((s == NULL) || (s->session == NULL)) 837 r = NULL; 838 else 839 r = s->session->peer; 840 841 if (r == NULL) 842 return (r); 843 844 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509); 845 846 return (r); 847} 848 849STACK_OF(X509) * 850SSL_get_peer_cert_chain(const SSL *s) 851{ 852 STACK_OF(X509) *r; 853 854 if ((s == NULL) || (s->session == NULL) || 855 (s->session->sess_cert == NULL)) 856 r = NULL; 857 else 858 r = s->session->sess_cert->cert_chain; 859 860 /* 861 * If we are a client, cert_chain includes the peer's own 862 * certificate; 863 * if we are a server, it does not. 864 */ 865 return (r); 866} 867 868/* 869 * Now in theory, since the calling process own 't' it should be safe to 870 * modify. We need to be able to read f without being hassled 871 */ 872void 873SSL_copy_session_id(SSL *t, const SSL *f) 874{ 875 CERT *tmp; 876 877 /* Do we need to to SSL locking? */ 878 SSL_set_session(t, SSL_get_session(f)); 879 880 /* 881 * What if we are setup as SSLv2 but want to talk SSLv3 or 882 * vice-versa. 883 */ 884 if (t->method != f->method) { 885 t->method->ssl_free(t); /* cleanup current */ 886 t->method=f->method; /* change method */ 887 t->method->ssl_new(t); /* setup new */ 888 } 889 890 tmp = t->cert; 891 if (f->cert != NULL) { 892 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 893 t->cert = f->cert; 894 } else 895 t->cert = NULL; 896 if (tmp != NULL) 897 ssl_cert_free(tmp); 898 SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length); 899} 900 901/* Fix this so it checks all the valid key/cert options */ 902int 903SSL_CTX_check_private_key(const SSL_CTX *ctx) 904{ 905 if ((ctx == NULL) || (ctx->cert == NULL) || 906 (ctx->cert->key->x509 == NULL)) { 907 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, 908 SSL_R_NO_CERTIFICATE_ASSIGNED); 909 return (0); 910 } 911 if (ctx->cert->key->privatekey == NULL) { 912 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, 913 SSL_R_NO_PRIVATE_KEY_ASSIGNED); 914 return (0); 915 } 916 return (X509_check_private_key(ctx->cert->key->x509, 917 ctx->cert->key->privatekey)); 918} 919 920/* Fix this function so that it takes an optional type parameter */ 921int 922SSL_check_private_key(const SSL *ssl) 923{ 924 if (ssl == NULL) { 925 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, 926 ERR_R_PASSED_NULL_PARAMETER); 927 return (0); 928 } 929 if (ssl->cert == NULL) { 930 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, 931 SSL_R_NO_CERTIFICATE_ASSIGNED); 932 return (0); 933 } 934 if (ssl->cert->key->x509 == NULL) { 935 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, 936 SSL_R_NO_CERTIFICATE_ASSIGNED); 937 return (0); 938 } 939 if (ssl->cert->key->privatekey == NULL) { 940 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, 941 SSL_R_NO_PRIVATE_KEY_ASSIGNED); 942 return (0); 943 } 944 return (X509_check_private_key(ssl->cert->key->x509, 945 ssl->cert->key->privatekey)); 946} 947 948int 949SSL_accept(SSL *s) 950{ 951 if (s->handshake_func == 0) 952 SSL_set_accept_state(s); /* Not properly initialized yet */ 953 954 return (s->method->ssl_accept(s)); 955} 956 957int 958SSL_connect(SSL *s) 959{ 960 if (s->handshake_func == 0) 961 SSL_set_connect_state(s); /* Not properly initialized yet */ 962 963 return (s->method->ssl_connect(s)); 964} 965 966long 967SSL_get_default_timeout(const SSL *s) 968{ 969 return (s->method->get_timeout()); 970} 971 972int 973SSL_read(SSL *s, void *buf, int num) 974{ 975 if (s->handshake_func == 0) { 976 SSLerr(SSL_F_SSL_READ, 977 SSL_R_UNINITIALIZED); 978 return (-1); 979 } 980 981 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 982 s->rwstate = SSL_NOTHING; 983 return (0); 984 } 985 return (s->method->ssl_read(s, buf, num)); 986} 987 988int 989SSL_peek(SSL *s, void *buf, int num) 990{ 991 if (s->handshake_func == 0) { 992 SSLerr(SSL_F_SSL_PEEK, 993 SSL_R_UNINITIALIZED); 994 return (-1); 995 } 996 997 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 998 return (0); 999 } 1000 return (s->method->ssl_peek(s, buf, num)); 1001} 1002 1003int 1004SSL_write(SSL *s, const void *buf, int num) 1005{ 1006 if (s->handshake_func == 0) { 1007 SSLerr(SSL_F_SSL_WRITE, 1008 SSL_R_UNINITIALIZED); 1009 return (-1); 1010 } 1011 1012 if (s->shutdown & SSL_SENT_SHUTDOWN) { 1013 s->rwstate = SSL_NOTHING; 1014 SSLerr(SSL_F_SSL_WRITE, 1015 SSL_R_PROTOCOL_IS_SHUTDOWN); 1016 return (-1); 1017 } 1018 return (s->method->ssl_write(s, buf, num)); 1019} 1020 1021int 1022SSL_shutdown(SSL *s) 1023{ 1024 /* 1025 * Note that this function behaves differently from what one might 1026 * expect. Return values are 0 for no success (yet), 1027 * 1 for success; but calling it once is usually not enough, 1028 * even if blocking I/O is used (see ssl3_shutdown). 1029 */ 1030 1031 if (s->handshake_func == 0) { 1032 SSLerr(SSL_F_SSL_SHUTDOWN, 1033 SSL_R_UNINITIALIZED); 1034 return (-1); 1035 } 1036 1037 if ((s != NULL) && !SSL_in_init(s)) 1038 return (s->method->ssl_shutdown(s)); 1039 else 1040 return (1); 1041} 1042 1043int 1044SSL_renegotiate(SSL *s) 1045{ 1046 if (s->renegotiate == 0) 1047 s->renegotiate = 1; 1048 1049 s->new_session = 1; 1050 1051 return (s->method->ssl_renegotiate(s)); 1052} 1053 1054int 1055SSL_renegotiate_abbreviated(SSL *s) 1056{ 1057 if (s->renegotiate == 0) 1058 s->renegotiate = 1; 1059 1060 s->new_session = 0; 1061 1062 return (s->method->ssl_renegotiate(s)); 1063} 1064 1065int 1066SSL_renegotiate_pending(SSL *s) 1067{ 1068 /* 1069 * Becomes true when negotiation is requested; 1070 * false again once a handshake has finished. 1071 */ 1072 return (s->renegotiate != 0); 1073} 1074 1075long 1076SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1077{ 1078 long l; 1079 1080 switch (cmd) { 1081 case SSL_CTRL_GET_READ_AHEAD: 1082 return (s->read_ahead); 1083 case SSL_CTRL_SET_READ_AHEAD: 1084 l = s->read_ahead; 1085 s->read_ahead = larg; 1086 return (l); 1087 1088 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1089 s->msg_callback_arg = parg; 1090 return (1); 1091 1092 case SSL_CTRL_OPTIONS: 1093 return (s->options|=larg); 1094 case SSL_CTRL_CLEAR_OPTIONS: 1095 return (s->options&=~larg); 1096 case SSL_CTRL_MODE: 1097 return (s->mode|=larg); 1098 case SSL_CTRL_CLEAR_MODE: 1099 return (s->mode &=~larg); 1100 case SSL_CTRL_GET_MAX_CERT_LIST: 1101 return (s->max_cert_list); 1102 case SSL_CTRL_SET_MAX_CERT_LIST: 1103 l = s->max_cert_list; 1104 s->max_cert_list = larg; 1105 return (l); 1106 case SSL_CTRL_SET_MTU: 1107#ifndef OPENSSL_NO_DTLS1 1108 if (larg < (long)dtls1_min_mtu()) 1109 return (0); 1110#endif 1111 1112 if (SSL_version(s) == DTLS1_VERSION || 1113 SSL_version(s) == DTLS1_BAD_VER) { 1114 s->d1->mtu = larg; 1115 return (larg); 1116 } 1117 return (0); 1118 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1119 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1120 return (0); 1121 s->max_send_fragment = larg; 1122 return (1); 1123 case SSL_CTRL_GET_RI_SUPPORT: 1124 if (s->s3) 1125 return (s->s3->send_connection_binding); 1126 else return (0); 1127 default: 1128 return (s->method->ssl_ctrl(s, cmd, larg, parg)); 1129 } 1130} 1131 1132long 1133SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1134{ 1135 switch (cmd) { 1136 case SSL_CTRL_SET_MSG_CALLBACK: 1137 s->msg_callback = (void (*)(int write_p, int version, 1138 int content_type, const void *buf, size_t len, 1139 SSL *ssl, void *arg))(fp); 1140 return (1); 1141 1142 default: 1143 return (s->method->ssl_callback_ctrl(s, cmd, fp)); 1144 } 1145} 1146 1147LHASH_OF(SSL_SESSION) * 1148SSL_CTX_sessions(SSL_CTX *ctx) 1149{ 1150 return (ctx->sessions); 1151} 1152 1153long 1154SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1155{ 1156 long l; 1157 1158 switch (cmd) { 1159 case SSL_CTRL_GET_READ_AHEAD: 1160 return (ctx->read_ahead); 1161 case SSL_CTRL_SET_READ_AHEAD: 1162 l = ctx->read_ahead; 1163 ctx->read_ahead = larg; 1164 return (l); 1165 1166 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1167 ctx->msg_callback_arg = parg; 1168 return (1); 1169 1170 case SSL_CTRL_GET_MAX_CERT_LIST: 1171 return (ctx->max_cert_list); 1172 case SSL_CTRL_SET_MAX_CERT_LIST: 1173 l = ctx->max_cert_list; 1174 ctx->max_cert_list = larg; 1175 return (l); 1176 1177 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1178 l = ctx->session_cache_size; 1179 ctx->session_cache_size = larg; 1180 return (l); 1181 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1182 return (ctx->session_cache_size); 1183 case SSL_CTRL_SET_SESS_CACHE_MODE: 1184 l = ctx->session_cache_mode; 1185 ctx->session_cache_mode = larg; 1186 return (l); 1187 case SSL_CTRL_GET_SESS_CACHE_MODE: 1188 return (ctx->session_cache_mode); 1189 1190 case SSL_CTRL_SESS_NUMBER: 1191 return (lh_SSL_SESSION_num_items(ctx->sessions)); 1192 case SSL_CTRL_SESS_CONNECT: 1193 return (ctx->stats.sess_connect); 1194 case SSL_CTRL_SESS_CONNECT_GOOD: 1195 return (ctx->stats.sess_connect_good); 1196 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1197 return (ctx->stats.sess_connect_renegotiate); 1198 case SSL_CTRL_SESS_ACCEPT: 1199 return (ctx->stats.sess_accept); 1200 case SSL_CTRL_SESS_ACCEPT_GOOD: 1201 return (ctx->stats.sess_accept_good); 1202 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1203 return (ctx->stats.sess_accept_renegotiate); 1204 case SSL_CTRL_SESS_HIT: 1205 return (ctx->stats.sess_hit); 1206 case SSL_CTRL_SESS_CB_HIT: 1207 return (ctx->stats.sess_cb_hit); 1208 case SSL_CTRL_SESS_MISSES: 1209 return (ctx->stats.sess_miss); 1210 case SSL_CTRL_SESS_TIMEOUTS: 1211 return (ctx->stats.sess_timeout); 1212 case SSL_CTRL_SESS_CACHE_FULL: 1213 return (ctx->stats.sess_cache_full); 1214 case SSL_CTRL_OPTIONS: 1215 return (ctx->options|=larg); 1216 case SSL_CTRL_CLEAR_OPTIONS: 1217 return (ctx->options&=~larg); 1218 case SSL_CTRL_MODE: 1219 return (ctx->mode|=larg); 1220 case SSL_CTRL_CLEAR_MODE: 1221 return (ctx->mode&=~larg); 1222 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1223 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1224 return (0); 1225 ctx->max_send_fragment = larg; 1226 return (1); 1227 default: 1228 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); 1229 } 1230} 1231 1232long 1233SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1234{ 1235 switch (cmd) { 1236 case SSL_CTRL_SET_MSG_CALLBACK: 1237 ctx->msg_callback = (void (*)(int write_p, int version, 1238 int content_type, const void *buf, size_t len, SSL *ssl, 1239 void *arg))(fp); 1240 return (1); 1241 1242 default: 1243 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); 1244 } 1245} 1246 1247int 1248ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1249{ 1250 long l; 1251 1252 l = a->id - b->id; 1253 if (l == 0L) 1254 return (0); 1255 else 1256 return ((l > 0) ? 1:-1); 1257} 1258 1259int 1260ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1261 const SSL_CIPHER * const *bp) 1262{ 1263 long l; 1264 1265 l = (*ap)->id - (*bp)->id; 1266 if (l == 0L) 1267 return (0); 1268 else 1269 return ((l > 0) ? 1:-1); 1270} 1271 1272/* 1273 * Return a STACK of the ciphers available for the SSL and in order of 1274 * preference. 1275 */ 1276STACK_OF(SSL_CIPHER) * 1277SSL_get_ciphers(const SSL *s) 1278{ 1279 if (s != NULL) { 1280 if (s->cipher_list != NULL) { 1281 return (s->cipher_list); 1282 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { 1283 return (s->ctx->cipher_list); 1284 } 1285 } 1286 return (NULL); 1287} 1288 1289/* 1290 * Return a STACK of the ciphers available for the SSL and in order of 1291 * algorithm id. 1292 */ 1293STACK_OF(SSL_CIPHER) * 1294ssl_get_ciphers_by_id(SSL *s) 1295{ 1296 if (s != NULL) { 1297 if (s->cipher_list_by_id != NULL) { 1298 return (s->cipher_list_by_id); 1299 } else if ((s->ctx != NULL) && 1300 (s->ctx->cipher_list_by_id != NULL)) { 1301 return (s->ctx->cipher_list_by_id); 1302 } 1303 } 1304 return (NULL); 1305} 1306 1307/* The old interface to get the same thing as SSL_get_ciphers(). */ 1308const char * 1309SSL_get_cipher_list(const SSL *s, int n) 1310{ 1311 SSL_CIPHER *c; 1312 STACK_OF(SSL_CIPHER) *sk; 1313 1314 if (s == NULL) 1315 return (NULL); 1316 sk = SSL_get_ciphers(s); 1317 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1318 return (NULL); 1319 c = sk_SSL_CIPHER_value(sk, n); 1320 if (c == NULL) 1321 return (NULL); 1322 return (c->name); 1323} 1324 1325/* Specify the ciphers to be used by default by the SSL_CTX. */ 1326int 1327SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1328{ 1329 STACK_OF(SSL_CIPHER) *sk; 1330 1331 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1332 &ctx->cipher_list_by_id, str); 1333 /* 1334 * ssl_create_cipher_list may return an empty stack if it 1335 * was unable to find a cipher matching the given rule string 1336 * (for example if the rule string specifies a cipher which 1337 * has been disabled). This is not an error as far as 1338 * ssl_create_cipher_list is concerned, and hence 1339 * ctx->cipher_list and ctx->cipher_list_by_id has been 1340 * updated. 1341 */ 1342 if (sk == NULL) 1343 return (0); 1344 else if (sk_SSL_CIPHER_num(sk) == 0) { 1345 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, 1346 SSL_R_NO_CIPHER_MATCH); 1347 return (0); 1348 } 1349 return (1); 1350} 1351 1352/* Specify the ciphers to be used by the SSL. */ 1353int 1354SSL_set_cipher_list(SSL *s, const char *str) 1355{ 1356 STACK_OF(SSL_CIPHER) *sk; 1357 1358 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1359 &s->cipher_list_by_id, str); 1360 /* see comment in SSL_CTX_set_cipher_list */ 1361 if (sk == NULL) 1362 return (0); 1363 else if (sk_SSL_CIPHER_num(sk) == 0) { 1364 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, 1365 SSL_R_NO_CIPHER_MATCH); 1366 return (0); 1367 } 1368 return (1); 1369} 1370 1371/* works well for SSLv2, not so good for SSLv3 */ 1372char * 1373SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1374{ 1375 char *end; 1376 STACK_OF(SSL_CIPHER) *sk; 1377 SSL_CIPHER *c; 1378 size_t curlen = 0; 1379 int i; 1380 1381 if ((s->session == NULL) || (s->session->ciphers == NULL) || 1382 (len < 2)) 1383 return (NULL); 1384 1385 sk = s->session->ciphers; 1386 buf[0] = '\0'; 1387 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { 1388 c = sk_SSL_CIPHER_value(sk, i); 1389 end = buf + curlen; 1390 if (strlcat(buf, c->name, len) >= len || 1391 (curlen = strlcat(buf, ":", len)) >= len) { 1392 /* remove truncated cipher from list */ 1393 *end = '\0'; 1394 break; 1395 } 1396 } 1397 /* remove trailing colon */ 1398 if ((end = strrchr(buf, ':')) != NULL) 1399 *end = '\0'; 1400 return (buf); 1401} 1402 1403int 1404ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk, unsigned char *p, 1405 int (*put_cb)(const SSL_CIPHER *, unsigned char *)) 1406{ 1407 int i, j = 0; 1408 SSL_CIPHER *c; 1409 unsigned char *q; 1410 1411 if (sk == NULL) 1412 return (0); 1413 q = p; 1414 1415 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { 1416 c = sk_SSL_CIPHER_value(sk, i); 1417 /* Skip TLS v1.2 only ciphersuites if lower than v1.2 */ 1418 if ((c->algorithm_ssl & SSL_TLSV1_2) && 1419 (TLS1_get_client_version(s) < TLS1_2_VERSION)) 1420 continue; 1421#ifndef OPENSSL_NO_PSK 1422 /* with PSK there must be client callback set */ 1423 if (((c->algorithm_mkey & SSL_kPSK) || 1424 (c->algorithm_auth & SSL_aPSK)) && 1425 s->psk_client_callback == NULL) 1426 continue; 1427#endif /* OPENSSL_NO_PSK */ 1428 j = put_cb ? put_cb(c, p) : ssl_put_cipher_by_char(s, c, p); 1429 p += j; 1430 } 1431 /* 1432 * If p == q, no ciphers and caller indicates an error. Otherwise 1433 * add SCSV if not renegotiating. 1434 */ 1435 if (p != q && !s->renegotiate) { 1436 static SSL_CIPHER scsv = { 1437 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0 1438 }; 1439 j = put_cb ? put_cb(&scsv, p) : 1440 ssl_put_cipher_by_char(s, &scsv, p); 1441 p += j; 1442#ifdef OPENSSL_RI_DEBUG 1443 fprintf(stderr, "SCSV sent by client\n"); 1444#endif 1445 } 1446 1447 return (p - q); 1448} 1449 1450STACK_OF(SSL_CIPHER) * 1451ssl_bytes_to_cipher_list(SSL *s, unsigned char *p, int num, 1452 STACK_OF(SSL_CIPHER) **skp) 1453{ 1454 const SSL_CIPHER *c; 1455 STACK_OF(SSL_CIPHER) *sk; 1456 int i, n; 1457 1458 if (s->s3) 1459 s->s3->send_connection_binding = 0; 1460 1461 n = ssl_put_cipher_by_char(s, NULL, NULL); 1462 if ((num % n) != 0) { 1463 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, 1464 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1465 return (NULL); 1466 } 1467 if ((skp == NULL) || (*skp == NULL)) 1468 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1469 else { 1470 sk= *skp; 1471 sk_SSL_CIPHER_zero(sk); 1472 } 1473 1474 for (i = 0; i < num; i += n) { 1475 /* Check for SCSV */ 1476 if (s->s3 && (n != 3 || !p[0]) && 1477 (p[n - 2] == ((SSL3_CK_SCSV >> 8) & 0xff)) && 1478 (p[n - 1] == (SSL3_CK_SCSV & 0xff))) { 1479 /* SCSV fatal if renegotiating */ 1480 if (s->renegotiate) { 1481 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, 1482 SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING); 1483 ssl3_send_alert(s, SSL3_AL_FATAL, 1484 SSL_AD_HANDSHAKE_FAILURE); 1485 1486 goto err; 1487 } 1488 s->s3->send_connection_binding = 1; 1489 p += n; 1490#ifdef OPENSSL_RI_DEBUG 1491 fprintf(stderr, "SCSV received by server\n"); 1492#endif 1493 continue; 1494 } 1495 1496 c = ssl_get_cipher_by_char(s, p); 1497 p += n; 1498 if (c != NULL) { 1499 if (!sk_SSL_CIPHER_push(sk, c)) { 1500 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, 1501 ERR_R_MALLOC_FAILURE); 1502 goto err; 1503 } 1504 } 1505 } 1506 1507 if (skp != NULL) 1508 *skp = sk; 1509 return (sk); 1510 err: 1511 if ((skp == NULL) || (*skp == NULL)) 1512 sk_SSL_CIPHER_free(sk); 1513 return (NULL); 1514} 1515 1516 1517#ifndef OPENSSL_NO_TLSEXT 1518/* 1519 * Return a servername extension value if provided in Client Hello, or NULL. 1520 * So far, only host_name types are defined (RFC 3546). 1521 */ 1522const char * 1523SSL_get_servername(const SSL *s, const int type) 1524{ 1525 if (type != TLSEXT_NAMETYPE_host_name) 1526 return (NULL); 1527 1528 return (s->session && !s->tlsext_hostname ? 1529 s->session->tlsext_hostname : 1530 s->tlsext_hostname); 1531} 1532 1533int 1534SSL_get_servername_type(const SSL *s) 1535{ 1536 if (s->session && 1537 (!s->tlsext_hostname ? 1538 s->session->tlsext_hostname : s->tlsext_hostname)) 1539 return (TLSEXT_NAMETYPE_host_name); 1540 return (-1); 1541} 1542 1543# ifndef OPENSSL_NO_NEXTPROTONEG 1544/* 1545 * SSL_select_next_proto implements the standard protocol selection. It is 1546 * expected that this function is called from the callback set by 1547 * SSL_CTX_set_next_proto_select_cb. 1548 * 1549 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1550 * strings. The length byte itself is not included in the length. A byte 1551 * string of length 0 is invalid. No byte string may be truncated. 1552 * 1553 * The current, but experimental algorithm for selecting the protocol is: 1554 * 1555 * 1) If the server doesn't support NPN then this is indicated to the 1556 * callback. In this case, the client application has to abort the connection 1557 * or have a default application level protocol. 1558 * 1559 * 2) If the server supports NPN, but advertises an empty list then the 1560 * client selects the first protcol in its list, but indicates via the 1561 * API that this fallback case was enacted. 1562 * 1563 * 3) Otherwise, the client finds the first protocol in the server's list 1564 * that it supports and selects this protocol. This is because it's 1565 * assumed that the server has better information about which protocol 1566 * a client should use. 1567 * 1568 * 4) If the client doesn't support any of the server's advertised 1569 * protocols, then this is treated the same as case 2. 1570 * 1571 * It returns either 1572 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1573 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1574 */ 1575int 1576SSL_select_next_proto(unsigned char **out, unsigned char *outlen, 1577 const unsigned char *server, unsigned int server_len, 1578 const unsigned char *client, unsigned int client_len) 1579{ 1580 unsigned int i, j; 1581 const unsigned char *result; 1582 int status = OPENSSL_NPN_UNSUPPORTED; 1583 1584 /* 1585 * For each protocol in server preference order, 1586 * see if we support it. 1587 */ 1588 for (i = 0; i < server_len; ) { 1589 for (j = 0; j < client_len; ) { 1590 if (server[i] == client[j] && 1591 memcmp(&server[i + 1], 1592 &client[j + 1], server[i]) == 0) { 1593 /* We found a match */ 1594 result = &server[i]; 1595 status = OPENSSL_NPN_NEGOTIATED; 1596 goto found; 1597 } 1598 j += client[j]; 1599 j++; 1600 } 1601 i += server[i]; 1602 i++; 1603 } 1604 1605 /* There's no overlap between our protocols and the server's list. */ 1606 result = client; 1607 status = OPENSSL_NPN_NO_OVERLAP; 1608 1609 found: 1610 *out = (unsigned char *) result + 1; 1611 *outlen = result[0]; 1612 return (status); 1613} 1614 1615/* 1616 * SSL_get0_next_proto_negotiated sets *data and *len to point to the client's 1617 * requested protocol for this connection and returns 0. If the client didn't 1618 * request any protocol, then *data is set to NULL. 1619 * 1620 * Note that the client can request any protocol it chooses. The value returned 1621 * from this function need not be a member of the list of supported protocols 1622 * provided by the callback. 1623 */ 1624void 1625SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, 1626 unsigned *len) 1627{ 1628 *data = s->next_proto_negotiated; 1629 if (!*data) { 1630 *len = 0; 1631 } else { 1632 *len = s->next_proto_negotiated_len; 1633 } 1634} 1635 1636/* 1637 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a 1638 * TLS server needs a list of supported protocols for Next Protocol 1639 * Negotiation. The returned list must be in wire format. The list is returned 1640 * by setting |out| to point to it and |outlen| to its length. This memory will 1641 * not be modified, but one should assume that the SSL* keeps a reference to 1642 * it. 1643 * 1644 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. 1645 * Otherwise, no such extension will be included in the ServerHello. 1646 */ 1647void 1648SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, 1649 const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1650{ 1651 ctx->next_protos_advertised_cb = cb; 1652 ctx->next_protos_advertised_cb_arg = arg; 1653} 1654 1655/* 1656 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a 1657 * client needs to select a protocol from the server's provided list. |out| 1658 * must be set to point to the selected protocol (which may be within |in|). 1659 * The length of the protocol name must be written into |outlen|. The server's 1660 * advertised protocols are provided in |in| and |inlen|. The callback can 1661 * assume that |in| is syntactically valid. 1662 * 1663 * The client must select a protocol. It is fatal to the connection if this 1664 * callback returns a value other than SSL_TLSEXT_ERR_OK. 1665 */ 1666void 1667SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, 1668 unsigned char **out, unsigned char *outlen, const unsigned char *in, 1669 unsigned int inlen, void *arg), void *arg) 1670{ 1671 ctx->next_proto_select_cb = cb; 1672 ctx->next_proto_select_cb_arg = arg; 1673} 1674# endif 1675#endif 1676 1677int 1678SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1679 const char *label, size_t llen, const unsigned char *p, size_t plen, 1680 int use_context) 1681{ 1682 if (s->version < TLS1_VERSION) 1683 return (-1); 1684 1685 return (s->method->ssl3_enc->export_keying_material(s, out, olen, 1686 label, llen, p, plen, use_context)); 1687} 1688 1689static unsigned long 1690ssl_session_hash(const SSL_SESSION *a) 1691{ 1692 unsigned long l; 1693 1694 l = (unsigned long) 1695 ((unsigned int) a->session_id[0] )| 1696 ((unsigned int) a->session_id[1]<< 8L)| 1697 ((unsigned long)a->session_id[2]<<16L)| 1698 ((unsigned long)a->session_id[3]<<24L); 1699 return (l); 1700} 1701 1702/* 1703 * NB: If this function (or indeed the hash function which uses a sort of 1704 * coarser function than this one) is changed, ensure 1705 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1706 * able to construct an SSL_SESSION that will collide with any existing session 1707 * with a matching session ID. 1708 */ 1709static int 1710ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 1711{ 1712 if (a->ssl_version != b->ssl_version) 1713 return (1); 1714 if (a->session_id_length != b->session_id_length) 1715 return (1); 1716 return (memcmp(a->session_id, b->session_id, a->session_id_length)); 1717} 1718 1719/* 1720 * These wrapper functions should remain rather than redeclaring 1721 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1722 * variable. The reason is that the functions aren't static, they're exposed via 1723 * ssl.h. 1724 */ 1725static 1726IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION) 1727static 1728IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION) 1729 1730SSL_CTX * 1731SSL_CTX_new(const SSL_METHOD *meth) 1732{ 1733 SSL_CTX *ret = NULL; 1734 1735 if (meth == NULL) { 1736 SSLerr(SSL_F_SSL_CTX_NEW, 1737 SSL_R_NULL_SSL_METHOD_PASSED); 1738 return (NULL); 1739 } 1740 1741 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 1742 SSLerr(SSL_F_SSL_CTX_NEW, 1743 SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1744 goto err; 1745 } 1746 ret = calloc(1, sizeof(SSL_CTX)); 1747 if (ret == NULL) 1748 goto err; 1749 1750 ret->method = meth; 1751 1752 ret->cert_store = NULL; 1753 ret->session_cache_mode = SSL_SESS_CACHE_SERVER; 1754 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1755 ret->session_cache_head = NULL; 1756 ret->session_cache_tail = NULL; 1757 1758 /* We take the system default */ 1759 ret->session_timeout = meth->get_timeout(); 1760 1761 ret->new_session_cb = 0; 1762 ret->remove_session_cb = 0; 1763 ret->get_session_cb = 0; 1764 ret->generate_session_id = 0; 1765 1766 memset((char *)&ret->stats, 0, sizeof(ret->stats)); 1767 1768 ret->references = 1; 1769 ret->quiet_shutdown = 0; 1770 1771/* ret->cipher=NULL; 1772 ret->master_key=NULL; 1773*/ 1774 1775 ret->info_callback = NULL; 1776 1777 ret->app_verify_callback = 0; 1778 ret->app_verify_arg = NULL; 1779 1780 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 1781 ret->read_ahead = 0; 1782 ret->msg_callback = 0; 1783 ret->msg_callback_arg = NULL; 1784 ret->verify_mode = SSL_VERIFY_NONE; 1785#if 0 1786 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1787#endif 1788 ret->sid_ctx_length = 0; 1789 ret->default_verify_callback = NULL; 1790 if ((ret->cert = ssl_cert_new()) == NULL) 1791 goto err; 1792 1793 ret->default_passwd_callback = 0; 1794 ret->default_passwd_callback_userdata = NULL; 1795 ret->client_cert_cb = 0; 1796 ret->app_gen_cookie_cb = 0; 1797 ret->app_verify_cookie_cb = 0; 1798 1799 ret->sessions = lh_SSL_SESSION_new(); 1800 if (ret->sessions == NULL) 1801 goto err; 1802 ret->cert_store = X509_STORE_new(); 1803 if (ret->cert_store == NULL) 1804 goto err; 1805 1806 ssl_create_cipher_list(ret->method, &ret->cipher_list, 1807 &ret->cipher_list_by_id, SSL_DEFAULT_CIPHER_LIST); 1808 if (ret->cipher_list == NULL || 1809 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 1810 SSLerr(SSL_F_SSL_CTX_NEW, 1811 SSL_R_LIBRARY_HAS_NO_CIPHERS); 1812 goto err2; 1813 } 1814 1815 ret->param = X509_VERIFY_PARAM_new(); 1816 if (!ret->param) 1817 goto err; 1818 1819 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { 1820 SSLerr(SSL_F_SSL_CTX_NEW, 1821 SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1822 goto err2; 1823 } 1824 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { 1825 SSLerr(SSL_F_SSL_CTX_NEW, 1826 SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1827 goto err2; 1828 } 1829 1830 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) 1831 goto err; 1832 1833 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 1834 1835 ret->extra_certs = NULL; 1836 /* No compression for DTLS */ 1837 if (meth->version != DTLS1_VERSION) 1838 ret->comp_methods = SSL_COMP_get_compression_methods(); 1839 1840 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 1841 1842#ifndef OPENSSL_NO_TLSEXT 1843 ret->tlsext_servername_callback = 0; 1844 ret->tlsext_servername_arg = NULL; 1845 /* Setup RFC4507 ticket keys */ 1846 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0) 1847 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) 1848 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) 1849 ret->options |= SSL_OP_NO_TICKET; 1850 1851 ret->tlsext_status_cb = 0; 1852 ret->tlsext_status_arg = NULL; 1853 1854# ifndef OPENSSL_NO_NEXTPROTONEG 1855 ret->next_protos_advertised_cb = 0; 1856 ret->next_proto_select_cb = 0; 1857# endif 1858#endif 1859#ifndef OPENSSL_NO_PSK 1860 ret->psk_identity_hint = NULL; 1861 ret->psk_client_callback = NULL; 1862 ret->psk_server_callback = NULL; 1863#endif 1864#ifndef OPENSSL_NO_ENGINE 1865 ret->client_cert_engine = NULL; 1866#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1867#define eng_strx(x) #x 1868#define eng_str(x) eng_strx(x) 1869 /* Use specific client engine automatically... ignore errors */ 1870 { 1871 ENGINE *eng; 1872 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1873 if (!eng) { 1874 ERR_clear_error(); 1875 ENGINE_load_builtin_engines(); 1876 eng = ENGINE_by_id(eng_str( 1877 OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1878 } 1879 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1880 ERR_clear_error(); 1881 } 1882#endif 1883#endif 1884 /* 1885 * Default is to connect to non-RI servers. When RI is more widely 1886 * deployed might change this. 1887 */ 1888 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1889 1890 return (ret); 1891 err: 1892 SSLerr(SSL_F_SSL_CTX_NEW, 1893 ERR_R_MALLOC_FAILURE); 1894 err2: 1895 if (ret != NULL) 1896 SSL_CTX_free(ret); 1897 return (NULL); 1898} 1899 1900#if 0 1901static void 1902SSL_COMP_free(SSL_COMP *comp) 1903 { free(comp); 1904} 1905#endif 1906 1907void 1908SSL_CTX_free(SSL_CTX *a) 1909{ 1910 int i; 1911 1912 if (a == NULL) 1913 return; 1914 1915 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX); 1916 if (i > 0) 1917 return; 1918 1919 if (a->param) 1920 X509_VERIFY_PARAM_free(a->param); 1921 1922 /* 1923 * Free internal session cache. However: the remove_cb() may reference 1924 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1925 * after the sessions were flushed. 1926 * As the ex_data handling routines might also touch the session cache, 1927 * the most secure solution seems to be: empty (flush) the cache, then 1928 * free ex_data, then finally free the cache. 1929 * (See ticket [openssl.org #212].) 1930 */ 1931 if (a->sessions != NULL) 1932 SSL_CTX_flush_sessions(a, 0); 1933 1934 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); 1935 1936 if (a->sessions != NULL) 1937 lh_SSL_SESSION_free(a->sessions); 1938 1939 if (a->cert_store != NULL) 1940 X509_STORE_free(a->cert_store); 1941 if (a->cipher_list != NULL) 1942 sk_SSL_CIPHER_free(a->cipher_list); 1943 if (a->cipher_list_by_id != NULL) 1944 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1945 if (a->cert != NULL) 1946 ssl_cert_free(a->cert); 1947 if (a->client_CA != NULL) 1948 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); 1949 if (a->extra_certs != NULL) 1950 sk_X509_pop_free(a->extra_certs, X509_free); 1951#if 0 /* This should never be done, since it removes a global database */ 1952 if (a->comp_methods != NULL) 1953 sk_SSL_COMP_pop_free(a->comp_methods, SSL_COMP_free); 1954#else 1955 a->comp_methods = NULL; 1956#endif 1957 1958#ifndef OPENSSL_NO_SRTP 1959 if (a->srtp_profiles) 1960 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); 1961#endif 1962 1963#ifndef OPENSSL_NO_PSK 1964 if (a->psk_identity_hint) 1965 free(a->psk_identity_hint); 1966#endif 1967#ifndef OPENSSL_NO_ENGINE 1968 if (a->client_cert_engine) 1969 ENGINE_finish(a->client_cert_engine); 1970#endif 1971 1972 free(a); 1973} 1974 1975void 1976SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1977{ 1978 ctx->default_passwd_callback = cb; 1979} 1980 1981void 1982SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 1983{ 1984 ctx->default_passwd_callback_userdata = u; 1985} 1986 1987void 1988SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *, 1989 void *), void *arg) 1990{ 1991 ctx->app_verify_callback = cb; 1992 ctx->app_verify_arg = arg; 1993} 1994 1995void 1996SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 1997{ 1998 ctx->verify_mode = mode; 1999 ctx->default_verify_callback = cb; 2000} 2001 2002void 2003SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 2004{ 2005 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 2006} 2007 2008void 2009ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) 2010{ 2011 CERT_PKEY *cpk; 2012 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign; 2013 int rsa_enc_export, dh_rsa_export, dh_dsa_export; 2014 int rsa_tmp_export, dh_tmp_export, kl; 2015 unsigned long mask_k, mask_a, emask_k, emask_a; 2016 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size; 2017#ifndef OPENSSL_NO_ECDH 2018 int have_ecdh_tmp; 2019#endif 2020 X509 *x = NULL; 2021 EVP_PKEY *ecc_pkey = NULL; 2022 int signature_nid = 0, pk_nid = 0, md_nid = 0; 2023 2024 if (c == NULL) 2025 return; 2026 2027 kl = SSL_C_EXPORT_PKEYLENGTH(cipher); 2028 2029 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 2030 rsa_tmp_export = (c->rsa_tmp_cb != NULL || 2031 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 2032#ifndef OPENSSL_NO_DH 2033 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 2034 dh_tmp_export = (c->dh_tmp_cb != NULL || 2035 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 2036#else 2037 dh_tmp = dh_tmp_export = 0; 2038#endif 2039 2040#ifndef OPENSSL_NO_ECDH 2041 have_ecdh_tmp = (c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL); 2042#endif 2043 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]); 2044 rsa_enc = (cpk->x509 != NULL && cpk->privatekey != NULL); 2045 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 2046 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]); 2047 rsa_sign = (cpk->x509 != NULL && cpk->privatekey != NULL); 2048 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]); 2049 dsa_sign = (cpk->x509 != NULL && cpk->privatekey != NULL); 2050 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]); 2051 dh_rsa = (cpk->x509 != NULL && cpk->privatekey != NULL); 2052 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 2053 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]); 2054/* FIX THIS EAY EAY EAY */ 2055 dh_dsa = (cpk->x509 != NULL && cpk->privatekey != NULL); 2056 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 2057 cpk = &(c->pkeys[SSL_PKEY_ECC]); 2058 have_ecc_cert = (cpk->x509 != NULL && cpk->privatekey != NULL); 2059 mask_k = 0; 2060 mask_a = 0; 2061 emask_k = 0; 2062 emask_a = 0; 2063 2064 2065 2066#ifdef CIPHER_DEBUG 2067 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d " 2068 "rs=%d ds=%d dhr=%d dhd=%d\n", 2069 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, 2070 rsa_enc, rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa); 2071#endif 2072 2073 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 2074 if (cpk->x509 != NULL && cpk->privatekey !=NULL) { 2075 mask_k |= SSL_kGOST; 2076 mask_a |= SSL_aGOST01; 2077 } 2078 cpk = &(c->pkeys[SSL_PKEY_GOST94]); 2079 if (cpk->x509 != NULL && cpk->privatekey !=NULL) { 2080 mask_k |= SSL_kGOST; 2081 mask_a |= SSL_aGOST94; 2082 } 2083 2084 if (rsa_enc || (rsa_tmp && rsa_sign)) 2085 mask_k|=SSL_kRSA; 2086 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 2087 emask_k|=SSL_kRSA; 2088 2089#if 0 2090 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 2091 if ((dh_tmp || dh_rsa || dh_dsa) && 2092 (rsa_enc || rsa_sign || dsa_sign)) 2093 mask_k|=SSL_kEDH; 2094 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 2095 (rsa_enc || rsa_sign || dsa_sign)) 2096 emask_k|=SSL_kEDH; 2097#endif 2098 2099 if (dh_tmp_export) 2100 emask_k|=SSL_kEDH; 2101 2102 if (dh_tmp) 2103 mask_k|=SSL_kEDH; 2104 2105 if (dh_rsa) 2106 mask_k|=SSL_kDHr; 2107 if (dh_rsa_export) 2108 emask_k|=SSL_kDHr; 2109 2110 if (dh_dsa) 2111 mask_k|=SSL_kDHd; 2112 if (dh_dsa_export) 2113 emask_k|=SSL_kDHd; 2114 2115 if (rsa_enc || rsa_sign) { 2116 mask_a|=SSL_aRSA; 2117 emask_a|=SSL_aRSA; 2118 } 2119 2120 if (dsa_sign) { 2121 mask_a|=SSL_aDSS; 2122 emask_a|=SSL_aDSS; 2123 } 2124 2125 mask_a|=SSL_aNULL; 2126 emask_a|=SSL_aNULL; 2127 2128 2129 /* 2130 * An ECC certificate may be usable for ECDH and/or 2131 * ECDSA cipher suites depending on the key usage extension. 2132 */ 2133 if (have_ecc_cert) { 2134 /* This call populates extension flags (ex_flags) */ 2135 x = (c->pkeys[SSL_PKEY_ECC]).x509; 2136 X509_check_purpose(x, -1, 0); 2137 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 2138 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; 2139 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 2140 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; 2141 ecc_pkey = X509_get_pubkey(x); 2142 ecc_pkey_size = (ecc_pkey != NULL) ? 2143 EVP_PKEY_bits(ecc_pkey) : 0; 2144 EVP_PKEY_free(ecc_pkey); 2145 if ((x->sig_alg) && (x->sig_alg->algorithm)) { 2146 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 2147 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid); 2148 } 2149#ifndef OPENSSL_NO_ECDH 2150 if (ecdh_ok) { 2151 2152 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) { 2153 mask_k|=SSL_kECDHr; 2154 mask_a|=SSL_aECDH; 2155 if (ecc_pkey_size <= 163) { 2156 emask_k|=SSL_kECDHr; 2157 emask_a|=SSL_aECDH; 2158 } 2159 } 2160 2161 if (pk_nid == NID_X9_62_id_ecPublicKey) { 2162 mask_k|=SSL_kECDHe; 2163 mask_a|=SSL_aECDH; 2164 if (ecc_pkey_size <= 163) { 2165 emask_k|=SSL_kECDHe; 2166 emask_a|=SSL_aECDH; 2167 } 2168 } 2169 } 2170#endif 2171#ifndef OPENSSL_NO_ECDSA 2172 if (ecdsa_ok) { 2173 mask_a|=SSL_aECDSA; 2174 emask_a|=SSL_aECDSA; 2175 } 2176#endif 2177 } 2178 2179#ifndef OPENSSL_NO_ECDH 2180 if (have_ecdh_tmp) { 2181 mask_k|=SSL_kEECDH; 2182 emask_k|=SSL_kEECDH; 2183 } 2184#endif 2185 2186#ifndef OPENSSL_NO_PSK 2187 mask_k |= SSL_kPSK; 2188 mask_a |= SSL_aPSK; 2189 emask_k |= SSL_kPSK; 2190 emask_a |= SSL_aPSK; 2191#endif 2192 2193 c->mask_k = mask_k; 2194 c->mask_a = mask_a; 2195 c->export_mask_k = emask_k; 2196 c->export_mask_a = emask_a; 2197 c->valid = 1; 2198} 2199 2200/* This handy macro borrowed from crypto/x509v3/v3_purp.c */ 2201#define ku_reject(x, usage) \ 2202 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) 2203 2204#ifndef OPENSSL_NO_EC 2205 2206int 2207ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) 2208{ 2209 unsigned long alg_k, alg_a; 2210 EVP_PKEY *pkey = NULL; 2211 int keysize = 0; 2212 int signature_nid = 0, md_nid = 0, pk_nid = 0; 2213 const SSL_CIPHER *cs = s->s3->tmp.new_cipher; 2214 2215 alg_k = cs->algorithm_mkey; 2216 alg_a = cs->algorithm_auth; 2217 2218 if (SSL_C_IS_EXPORT(cs)) { 2219 /* ECDH key length in export ciphers must be <= 163 bits */ 2220 pkey = X509_get_pubkey(x); 2221 if (pkey == NULL) 2222 return (0); 2223 keysize = EVP_PKEY_bits(pkey); 2224 EVP_PKEY_free(pkey); 2225 if (keysize > 163) 2226 return (0); 2227 } 2228 2229 /* This call populates the ex_flags field correctly */ 2230 X509_check_purpose(x, -1, 0); 2231 if ((x->sig_alg) && (x->sig_alg->algorithm)) { 2232 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 2233 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid); 2234 } 2235 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) { 2236 /* key usage, if present, must allow key agreement */ 2237 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) { 2238 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, 2239 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT); 2240 return (0); 2241 } 2242 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < 2243 TLS1_2_VERSION) { 2244 /* signature alg must be ECDSA */ 2245 if (pk_nid != NID_X9_62_id_ecPublicKey) { 2246 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, 2247 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE); 2248 return (0); 2249 } 2250 } 2251 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < 2252 TLS1_2_VERSION) { 2253 /* signature alg must be RSA */ 2254 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) { 2255 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, 2256 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE); 2257 return (0); 2258 } 2259 } 2260 } 2261 if (alg_a & SSL_aECDSA) { 2262 /* key usage, if present, must allow signing */ 2263 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) { 2264 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, 2265 SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2266 return (0); 2267 } 2268 } 2269 2270 return (1); 2271 /* all checks are ok */ 2272} 2273 2274#endif 2275 2276/* THIS NEEDS CLEANING UP */ 2277CERT_PKEY * 2278ssl_get_server_send_pkey(const SSL *s) 2279{ 2280 unsigned long alg_k, alg_a; 2281 CERT *c; 2282 int i; 2283 2284 c = s->cert; 2285 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 2286 2287 alg_k = s->s3->tmp.new_cipher->algorithm_mkey; 2288 alg_a = s->s3->tmp.new_cipher->algorithm_auth; 2289 2290 if (alg_k & (SSL_kECDHr|SSL_kECDHe)) { 2291 /* 2292 * We don't need to look at SSL_kEECDH 2293 * since no certificate is needed for 2294 * anon ECDH and for authenticated 2295 * EECDH, the check for the auth 2296 * algorithm will set i correctly 2297 * NOTE: For ECDH-RSA, we need an ECC 2298 * not an RSA cert but for EECDH-RSA 2299 * we need an RSA cert. Placing the 2300 * checks for SSL_kECDH before RSA 2301 * checks ensures the correct cert is chosen. 2302 */ 2303 i = SSL_PKEY_ECC; 2304 } else if (alg_a & SSL_aECDSA) { 2305 i = SSL_PKEY_ECC; 2306 } else if (alg_k & SSL_kDHr) 2307 i = SSL_PKEY_DH_RSA; 2308 else if (alg_k & SSL_kDHd) 2309 i = SSL_PKEY_DH_DSA; 2310 else if (alg_a & SSL_aDSS) 2311 i = SSL_PKEY_DSA_SIGN; 2312 else if (alg_a & SSL_aRSA) { 2313 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 2314 i = SSL_PKEY_RSA_SIGN; 2315 else 2316 i = SSL_PKEY_RSA_ENC; 2317 } else if (alg_a & SSL_aKRB5) { 2318 /* VRS something else here? */ 2319 return (NULL); 2320 } else if (alg_a & SSL_aGOST94) 2321 i = SSL_PKEY_GOST94; 2322 else if (alg_a & SSL_aGOST01) 2323 i = SSL_PKEY_GOST01; 2324 else { /* if (alg_a & SSL_aNULL) */ 2325 SSLerr(SSL_F_SSL_GET_SERVER_SEND_PKEY, 2326 ERR_R_INTERNAL_ERROR); 2327 return (NULL); 2328 } 2329 2330 return (c->pkeys + i); 2331} 2332 2333X509 * 2334ssl_get_server_send_cert(const SSL *s) 2335{ 2336 CERT_PKEY *cpk; 2337 2338 cpk = ssl_get_server_send_pkey(s); 2339 if (!cpk) 2340 return (NULL); 2341 return (cpk->x509); 2342} 2343 2344EVP_PKEY * 2345ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd) 2346{ 2347 unsigned long alg_a; 2348 CERT *c; 2349 int idx = -1; 2350 2351 alg_a = cipher->algorithm_auth; 2352 c = s->cert; 2353 2354 if ((alg_a & SSL_aDSS) && 2355 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 2356 idx = SSL_PKEY_DSA_SIGN; 2357 else if (alg_a & SSL_aRSA) { 2358 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 2359 idx = SSL_PKEY_RSA_SIGN; 2360 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 2361 idx = SSL_PKEY_RSA_ENC; 2362 } else if ((alg_a & SSL_aECDSA) && 2363 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2364 idx = SSL_PKEY_ECC; 2365 if (idx == -1) { 2366 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, 2367 ERR_R_INTERNAL_ERROR); 2368 return (NULL); 2369 } 2370 if (pmd) 2371 *pmd = c->pkeys[idx].digest; 2372 return (c->pkeys[idx].privatekey); 2373} 2374 2375void 2376ssl_update_cache(SSL *s, int mode) 2377{ 2378 int i; 2379 2380 /* 2381 * If the session_id_length is 0, we are not supposed to cache it, 2382 * and it would be rather hard to do anyway :-) 2383 */ 2384 if (s->session->session_id_length == 0) 2385 return; 2386 2387 i = s->session_ctx->session_cache_mode; 2388 if ((i & mode) && (!s->hit) && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2389 || SSL_CTX_add_session(s->session_ctx, s->session)) 2390 && (s->session_ctx->new_session_cb != NULL)) { 2391 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2392 if (!s->session_ctx->new_session_cb(s, s->session)) 2393 SSL_SESSION_free(s->session); 2394 } 2395 2396 /* auto flush every 255 connections */ 2397 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2398 ((i & mode) == mode)) { 2399 if ((((mode & SSL_SESS_CACHE_CLIENT) ? 2400 s->session_ctx->stats.sess_connect_good : 2401 s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { 2402 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2403 } 2404 } 2405} 2406 2407const SSL_METHOD * 2408SSL_get_ssl_method(SSL *s) 2409{ 2410 return (s->method); 2411} 2412 2413int 2414SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) 2415{ 2416 int conn = -1; 2417 int ret = 1; 2418 2419 if (s->method != meth) { 2420 if (s->handshake_func != NULL) 2421 conn = (s->handshake_func == s->method->ssl_connect); 2422 2423 if (s->method->version == meth->version) 2424 s->method = meth; 2425 else { 2426 s->method->ssl_free(s); 2427 s->method = meth; 2428 ret = s->method->ssl_new(s); 2429 } 2430 2431 if (conn == 1) 2432 s->handshake_func = meth->ssl_connect; 2433 else if (conn == 0) 2434 s->handshake_func = meth->ssl_accept; 2435 } 2436 return (ret); 2437} 2438 2439int 2440SSL_get_error(const SSL *s, int i) 2441{ 2442 int reason; 2443 unsigned long l; 2444 BIO *bio; 2445 2446 if (i > 0) 2447 return (SSL_ERROR_NONE); 2448 2449 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2450 * etc, where we do encode the error */ 2451 if ((l = ERR_peek_error()) != 0) { 2452 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2453 return (SSL_ERROR_SYSCALL); 2454 else 2455 return (SSL_ERROR_SSL); 2456 } 2457 2458 if ((i < 0) && SSL_want_read(s)) { 2459 bio = SSL_get_rbio(s); 2460 if (BIO_should_read(bio)) 2461 return (SSL_ERROR_WANT_READ); 2462 else if (BIO_should_write(bio)) 2463 /* 2464 * This one doesn't make too much sense... We never 2465 * try to write to the rbio, and an application 2466 * program where rbio and wbio are separate couldn't 2467 * even know what it should wait for. However if we 2468 * ever set s->rwstate incorrectly (so that we have 2469 * SSL_want_read(s) instead of SSL_want_write(s)) 2470 * and rbio and wbio *are* the same, this test works 2471 * around that bug; so it might be safer to keep it. 2472 */ 2473 return (SSL_ERROR_WANT_WRITE); 2474 else if (BIO_should_io_special(bio)) { 2475 reason = BIO_get_retry_reason(bio); 2476 if (reason == BIO_RR_CONNECT) 2477 return (SSL_ERROR_WANT_CONNECT); 2478 else if (reason == BIO_RR_ACCEPT) 2479 return (SSL_ERROR_WANT_ACCEPT); 2480 else 2481 return (SSL_ERROR_SYSCALL); /* unknown */ 2482 } 2483 } 2484 2485 if ((i < 0) && SSL_want_write(s)) { 2486 bio = SSL_get_wbio(s); 2487 if (BIO_should_write(bio)) 2488 return (SSL_ERROR_WANT_WRITE); 2489 else if (BIO_should_read(bio)) { 2490 /* 2491 * See above (SSL_want_read(s) with 2492 * BIO_should_write(bio)) 2493 */ 2494 return (SSL_ERROR_WANT_READ); 2495 } else if (BIO_should_io_special(bio)) { 2496 reason = BIO_get_retry_reason(bio); 2497 if (reason == BIO_RR_CONNECT) 2498 return (SSL_ERROR_WANT_CONNECT); 2499 else if (reason == BIO_RR_ACCEPT) 2500 return (SSL_ERROR_WANT_ACCEPT); 2501 else 2502 return (SSL_ERROR_SYSCALL); 2503 } 2504 } 2505 if ((i < 0) && SSL_want_x509_lookup(s)) { 2506 return (SSL_ERROR_WANT_X509_LOOKUP); 2507 } 2508 2509 if (i == 0) { 2510 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2511 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2512 return (SSL_ERROR_ZERO_RETURN); 2513 } 2514 return (SSL_ERROR_SYSCALL); 2515} 2516 2517int 2518SSL_do_handshake(SSL *s) 2519{ 2520 int ret = 1; 2521 2522 if (s->handshake_func == NULL) { 2523 SSLerr(SSL_F_SSL_DO_HANDSHAKE, 2524 SSL_R_CONNECTION_TYPE_NOT_SET); 2525 return (-1); 2526 } 2527 2528 s->method->ssl_renegotiate_check(s); 2529 2530 if (SSL_in_init(s) || SSL_in_before(s)) { 2531 ret = s->handshake_func(s); 2532 } 2533 return (ret); 2534} 2535 2536/* 2537 * For the next 2 functions, SSL_clear() sets shutdown and so 2538 * one of these calls will reset it 2539 */ 2540void 2541SSL_set_accept_state(SSL *s) 2542{ 2543 s->server = 1; 2544 s->shutdown = 0; 2545 s->state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2546 s->handshake_func = s->method->ssl_accept; 2547 /* clear the current cipher */ 2548 ssl_clear_cipher_ctx(s); 2549 ssl_clear_hash_ctx(&s->read_hash); 2550 ssl_clear_hash_ctx(&s->write_hash); 2551} 2552 2553void 2554SSL_set_connect_state(SSL *s) 2555{ 2556 s->server = 0; 2557 s->shutdown = 0; 2558 s->state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2559 s->handshake_func = s->method->ssl_connect; 2560 /* clear the current cipher */ 2561 ssl_clear_cipher_ctx(s); 2562 ssl_clear_hash_ctx(&s->read_hash); 2563 ssl_clear_hash_ctx(&s->write_hash); 2564} 2565 2566int 2567ssl_undefined_function(SSL *s) 2568{ 2569 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, 2570 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2571 return (0); 2572} 2573 2574int 2575ssl_undefined_void_function(void) 2576{ 2577 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, 2578 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2579 return (0); 2580} 2581 2582int 2583ssl_undefined_const_function(const SSL *s) 2584{ 2585 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION, 2586 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2587 return (0); 2588} 2589 2590SSL_METHOD * 2591ssl_bad_method(int ver) 2592{ 2593 SSLerr(SSL_F_SSL_BAD_METHOD, 2594 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2595 return (NULL); 2596} 2597 2598const char * 2599SSL_get_version(const SSL *s) 2600{ 2601 if (s->version == TLS1_2_VERSION) 2602 return ("TLSv1.2"); 2603 else if (s->version == TLS1_1_VERSION) 2604 return ("TLSv1.1"); 2605 else if (s->version == TLS1_VERSION) 2606 return ("TLSv1"); 2607 else if (s->version == SSL3_VERSION) 2608 return ("SSLv3"); 2609 else 2610 return ("unknown"); 2611} 2612 2613SSL * 2614SSL_dup(SSL *s) 2615{ 2616 STACK_OF(X509_NAME) *sk; 2617 X509_NAME *xn; 2618 SSL *ret; 2619 int i; 2620 2621 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2622 return (NULL); 2623 2624 ret->version = s->version; 2625 ret->type = s->type; 2626 ret->method = s->method; 2627 2628 if (s->session != NULL) { 2629 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 2630 SSL_copy_session_id(ret, s); 2631 } else { 2632 /* 2633 * No session has been established yet, so we have to expect 2634 * that s->cert or ret->cert will be changed later -- 2635 * they should not both point to the same object, 2636 * and thus we can't use SSL_copy_session_id. 2637 */ 2638 2639 ret->method->ssl_free(ret); 2640 ret->method = s->method; 2641 ret->method->ssl_new(ret); 2642 2643 if (s->cert != NULL) { 2644 if (ret->cert != NULL) { 2645 ssl_cert_free(ret->cert); 2646 } 2647 ret->cert = ssl_cert_dup(s->cert); 2648 if (ret->cert == NULL) 2649 goto err; 2650 } 2651 2652 SSL_set_session_id_context(ret, 2653 s->sid_ctx, s->sid_ctx_length); 2654 } 2655 2656 ret->options = s->options; 2657 ret->mode = s->mode; 2658 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2659 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2660 ret->msg_callback = s->msg_callback; 2661 ret->msg_callback_arg = s->msg_callback_arg; 2662 SSL_set_verify(ret, SSL_get_verify_mode(s), 2663 SSL_get_verify_callback(s)); 2664 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2665 ret->generate_session_id = s->generate_session_id; 2666 2667 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2668 2669 ret->debug = s->debug; 2670 2671 /* copy app data, a little dangerous perhaps */ 2672 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, 2673 &ret->ex_data, &s->ex_data)) 2674 goto err; 2675 2676 /* setup rbio, and wbio */ 2677 if (s->rbio != NULL) { 2678 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2679 goto err; 2680 } 2681 if (s->wbio != NULL) { 2682 if (s->wbio != s->rbio) { 2683 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2684 goto err; 2685 } else 2686 ret->wbio = ret->rbio; 2687 } 2688 ret->rwstate = s->rwstate; 2689 ret->in_handshake = s->in_handshake; 2690 ret->handshake_func = s->handshake_func; 2691 ret->server = s->server; 2692 ret->renegotiate = s->renegotiate; 2693 ret->new_session = s->new_session; 2694 ret->quiet_shutdown = s->quiet_shutdown; 2695 ret->shutdown = s->shutdown; 2696 /* SSL_dup does not really work at any state, though */ 2697 ret->state=s->state; 2698 ret->rstate = s->rstate; 2699 2700 /* 2701 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num, 2702 * ret->init_off 2703 */ 2704 ret->init_num = 0; 2705 2706 ret->hit = s->hit; 2707 2708 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2709 2710 /* dup the cipher_list and cipher_list_by_id stacks */ 2711 if (s->cipher_list != NULL) { 2712 if ((ret->cipher_list = 2713 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2714 goto err; 2715 } 2716 if (s->cipher_list_by_id != NULL) { 2717 if ((ret->cipher_list_by_id = 2718 sk_SSL_CIPHER_dup(s->cipher_list_by_id)) == NULL) 2719 goto err; 2720 } 2721 2722 /* Dup the client_CA list */ 2723 if (s->client_CA != NULL) { 2724 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 2725 ret->client_CA = sk; 2726 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2727 xn = sk_X509_NAME_value(sk, i); 2728 if (sk_X509_NAME_set(sk, i, 2729 X509_NAME_dup(xn)) == NULL) { 2730 X509_NAME_free(xn); 2731 goto err; 2732 } 2733 } 2734 } 2735 2736 if (0) { 2737 err: 2738 if (ret != NULL) 2739 SSL_free(ret); 2740 ret = NULL; 2741 } 2742 return (ret); 2743} 2744 2745void 2746ssl_clear_cipher_ctx(SSL *s) 2747{ 2748 if (s->enc_read_ctx != NULL) { 2749 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 2750 free(s->enc_read_ctx); 2751 s->enc_read_ctx = NULL; 2752 } 2753 if (s->enc_write_ctx != NULL) { 2754 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 2755 free(s->enc_write_ctx); 2756 s->enc_write_ctx = NULL; 2757 } 2758#ifndef OPENSSL_NO_COMP 2759 if (s->expand != NULL) { 2760 COMP_CTX_free(s->expand); 2761 s->expand = NULL; 2762 } 2763 if (s->compress != NULL) { 2764 COMP_CTX_free(s->compress); 2765 s->compress = NULL; 2766 } 2767#endif 2768} 2769 2770/* Fix this function so that it takes an optional type parameter */ 2771X509 * 2772SSL_get_certificate(const SSL *s) 2773{ 2774 if (s->cert != NULL) 2775 return (s->cert->key->x509); 2776 else 2777 return (NULL); 2778} 2779 2780/* Fix this function so that it takes an optional type parameter */ 2781EVP_PKEY * 2782SSL_get_privatekey(SSL *s) 2783{ 2784 if (s->cert != NULL) 2785 return (s->cert->key->privatekey); 2786 else 2787 return (NULL); 2788} 2789 2790const SSL_CIPHER * 2791SSL_get_current_cipher(const SSL *s) 2792{ 2793 if ((s->session != NULL) && (s->session->cipher != NULL)) 2794 return (s->session->cipher); 2795 return (NULL); 2796} 2797#ifdef OPENSSL_NO_COMP 2798const void * 2799SSL_get_current_compression(SSL *s) 2800{ 2801 return (NULL); 2802} 2803 2804const void * 2805SSL_get_current_expansion(SSL *s) 2806{ 2807 return (NULL); 2808} 2809#else 2810 2811const COMP_METHOD * 2812SSL_get_current_compression(SSL *s) 2813{ 2814 if (s->compress != NULL) 2815 return (s->compress->meth); 2816 return (NULL); 2817} 2818 2819const COMP_METHOD * 2820SSL_get_current_expansion(SSL *s) 2821{ 2822 if (s->expand != NULL) 2823 return (s->expand->meth); 2824 return (NULL); 2825} 2826#endif 2827 2828int 2829ssl_init_wbio_buffer(SSL *s, int push) 2830{ 2831 BIO *bbio; 2832 2833 if (s->bbio == NULL) { 2834 bbio = BIO_new(BIO_f_buffer()); 2835 if (bbio == NULL) 2836 return (0); 2837 s->bbio = bbio; 2838 } else { 2839 bbio = s->bbio; 2840 if (s->bbio == s->wbio) 2841 s->wbio = BIO_pop(s->wbio); 2842 } 2843 (void)BIO_reset(bbio); 2844/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2845 if (!BIO_set_read_buffer_size(bbio, 1)) { 2846 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, 2847 ERR_R_BUF_LIB); 2848 return (0); 2849 } 2850 if (push) { 2851 if (s->wbio != bbio) 2852 s->wbio = BIO_push(bbio, s->wbio); 2853 } else { 2854 if (s->wbio == bbio) 2855 s->wbio = BIO_pop(bbio); 2856 } 2857 return (1); 2858} 2859 2860void 2861ssl_free_wbio_buffer(SSL *s) 2862{ 2863 if (s->bbio == NULL) 2864 return; 2865 2866 if (s->bbio == s->wbio) { 2867 /* remove buffering */ 2868 s->wbio = BIO_pop(s->wbio); 2869 } 2870 BIO_free(s->bbio); 2871 s->bbio = NULL; 2872} 2873 2874void 2875SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 2876{ 2877 ctx->quiet_shutdown = mode; 2878} 2879 2880int 2881SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2882{ 2883 return (ctx->quiet_shutdown); 2884} 2885 2886void 2887SSL_set_quiet_shutdown(SSL *s, int mode) 2888{ 2889 s->quiet_shutdown = mode; 2890} 2891 2892int 2893SSL_get_quiet_shutdown(const SSL *s) 2894{ 2895 return (s->quiet_shutdown); 2896} 2897 2898void 2899SSL_set_shutdown(SSL *s, int mode) 2900{ 2901 s->shutdown = mode; 2902} 2903 2904int 2905SSL_get_shutdown(const SSL *s) 2906{ 2907 return (s->shutdown); 2908} 2909 2910int 2911SSL_version(const SSL *s) 2912{ 2913 return (s->version); 2914} 2915 2916SSL_CTX * 2917SSL_get_SSL_CTX(const SSL *ssl) 2918{ 2919 return (ssl->ctx); 2920} 2921 2922SSL_CTX * 2923SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2924{ 2925 if (ssl->ctx == ctx) 2926 return (ssl->ctx); 2927#ifndef OPENSSL_NO_TLSEXT 2928 if (ctx == NULL) 2929 ctx = ssl->initial_ctx; 2930#endif 2931 if (ssl->cert != NULL) 2932 ssl_cert_free(ssl->cert); 2933 ssl->cert = ssl_cert_dup(ctx->cert); 2934 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 2935 if (ssl->ctx != NULL) 2936 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2937 ssl->ctx = ctx; 2938 return (ssl->ctx); 2939} 2940 2941#ifndef OPENSSL_NO_STDIO 2942int 2943SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2944{ 2945 return (X509_STORE_set_default_paths(ctx->cert_store)); 2946} 2947 2948int 2949SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2950 const char *CApath) 2951{ 2952 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 2953} 2954#endif 2955 2956void 2957SSL_set_info_callback(SSL *ssl, 2958 void (*cb)(const SSL *ssl, int type, int val)) 2959{ 2960 ssl->info_callback = cb; 2961} 2962 2963/* 2964 * One compiler (Diab DCC) doesn't like argument names in returned 2965 * function pointer. 2966 */ 2967void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/) 2968{ 2969 return (ssl->info_callback); 2970} 2971 2972int 2973SSL_state(const SSL *ssl) 2974{ 2975 return (ssl->state); 2976} 2977 2978void 2979SSL_set_state(SSL *ssl, int state) 2980{ 2981 ssl->state = state; 2982} 2983 2984void 2985SSL_set_verify_result(SSL *ssl, long arg) 2986{ 2987 ssl->verify_result = arg; 2988} 2989 2990long 2991SSL_get_verify_result(const SSL *ssl) 2992{ 2993 return (ssl->verify_result); 2994} 2995 2996int 2997SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2998 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2999{ 3000 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 3001 new_func, dup_func, free_func)); 3002} 3003 3004int 3005SSL_set_ex_data(SSL *s, int idx, void *arg) 3006{ 3007 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3008} 3009 3010void * 3011SSL_get_ex_data(const SSL *s, int idx) 3012{ 3013 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3014} 3015 3016int 3017SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 3018 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 3019{ 3020 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 3021 new_func, dup_func, free_func)); 3022} 3023 3024int 3025SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 3026{ 3027 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 3028} 3029 3030void * 3031SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 3032{ 3033 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 3034} 3035 3036int 3037ssl_ok(SSL *s) 3038{ 3039 return (1); 3040} 3041 3042X509_STORE * 3043SSL_CTX_get_cert_store(const SSL_CTX *ctx) 3044{ 3045 return (ctx->cert_store); 3046} 3047 3048void 3049SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 3050{ 3051 if (ctx->cert_store != NULL) 3052 X509_STORE_free(ctx->cert_store); 3053 ctx->cert_store = store; 3054} 3055 3056int 3057SSL_want(const SSL *s) 3058{ 3059 return (s->rwstate); 3060} 3061 3062/*! 3063 * \brief Set the callback for generating temporary RSA keys. 3064 * \param ctx the SSL context. 3065 * \param cb the callback 3066 */ 3067 3068void 3069SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, 3070 int is_export, 3071int keylength)) 3072{ 3073 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3074} 3075 3076void 3077SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, 3078 int is_export, 3079int keylength)) 3080{ 3081 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 3082} 3083 3084#ifdef DOXYGEN 3085/*! 3086 * \brief The RSA temporary key callback function. 3087 * \param ssl the SSL session. 3088 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 3089 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 3090 * of the required key in bits. 3091 * \return the temporary RSA key. 3092 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 3093 */ 3094 3095RSA * 3096cb(SSL *ssl, int is_export, int keylength) 3097{} 3098#endif 3099 3100/*! 3101 * \brief Set the callback for generating temporary DH keys. 3102 * \param ctx the SSL context. 3103 * \param dh the callback 3104 */ 3105 3106#ifndef OPENSSL_NO_DH 3107void 3108SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 3109 int keylength)) 3110{ 3111 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3112} 3113 3114void 3115SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 3116 int keylength)) 3117{ 3118 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3119} 3120#endif 3121 3122#ifndef OPENSSL_NO_ECDH 3123void 3124SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, 3125 int is_export, int keylength)) 3126{ 3127 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, 3128 (void (*)(void))ecdh); 3129} 3130 3131void 3132SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 3133 int keylength)) 3134{ 3135 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 3136} 3137#endif 3138 3139#ifndef OPENSSL_NO_PSK 3140int 3141SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) 3142{ 3143 if (identity_hint != NULL && strlen(identity_hint) > 3144 PSK_MAX_IDENTITY_LEN) { 3145 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, 3146 SSL_R_DATA_LENGTH_TOO_LONG); 3147 return (0); 3148 } 3149 if (ctx->psk_identity_hint != NULL) 3150 free(ctx->psk_identity_hint); 3151 if (identity_hint != NULL) { 3152 ctx->psk_identity_hint = BUF_strdup(identity_hint); 3153 if (ctx->psk_identity_hint == NULL) 3154 return (0); 3155 } else 3156 ctx->psk_identity_hint = NULL; 3157 return (1); 3158} 3159 3160int 3161SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) 3162{ 3163 if (s == NULL) 3164 return (0); 3165 3166 if (s->session == NULL) 3167 return (1); /* session not created yet, ignored */ 3168 3169 if (identity_hint != NULL && strlen(identity_hint) > 3170 PSK_MAX_IDENTITY_LEN) { 3171 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, 3172 SSL_R_DATA_LENGTH_TOO_LONG); 3173 return (0); 3174 } 3175 if (s->session->psk_identity_hint != NULL) 3176 free(s->session->psk_identity_hint); 3177 if (identity_hint != NULL) { 3178 s->session->psk_identity_hint = BUF_strdup(identity_hint); 3179 if (s->session->psk_identity_hint == NULL) 3180 return (0); 3181 } else 3182 s->session->psk_identity_hint = NULL; 3183 return (1); 3184} 3185 3186const char * 3187SSL_get_psk_identity_hint(const SSL *s) 3188{ 3189 if (s == NULL || s->session == NULL) 3190 return (NULL); 3191 return (s->session->psk_identity_hint); 3192} 3193 3194const char * 3195SSL_get_psk_identity(const SSL *s) 3196{ 3197 if (s == NULL || s->session == NULL) 3198 return (NULL); 3199 return (s->session->psk_identity); 3200} 3201 3202void 3203SSL_set_psk_client_callback(SSL *s, 3204 unsigned int (*cb)(SSL *ssl, const char *hint, 3205 char *identity, unsigned int max_identity_len, unsigned char *psk, 3206 unsigned int max_psk_len)) 3207{ 3208 s->psk_client_callback = cb; 3209} 3210 3211void 3212SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, 3213 unsigned int (*cb)(SSL *ssl, const char *hint, 3214 char *identity, unsigned int max_identity_len, unsigned char *psk, 3215 unsigned int max_psk_len)) 3216{ 3217 ctx->psk_client_callback = cb; 3218} 3219 3220void 3221SSL_set_psk_server_callback(SSL *s, 3222 unsigned int (*cb)(SSL *ssl, const char *identity, 3223 unsigned char *psk, unsigned int max_psk_len)) 3224{ 3225 s->psk_server_callback = cb; 3226} 3227 3228void 3229SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, 3230 unsigned int (*cb)(SSL *ssl, const char *identity, 3231 unsigned char *psk, unsigned int max_psk_len)) 3232{ 3233 ctx->psk_server_callback = cb; 3234} 3235#endif 3236 3237void 3238SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, 3239 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3240{ 3241 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, 3242 (void (*)(void))cb); 3243} 3244 3245void 3246SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, 3247 int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3248{ 3249 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3250} 3251 3252/* 3253 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer 3254 * vairable, freeing EVP_MD_CTX previously stored in that variable, if 3255 * any. If EVP_MD pointer is passed, initializes ctx with this md 3256 * Returns newly allocated ctx; 3257 */ 3258EVP_MD_CTX * 3259ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) 3260{ 3261 ssl_clear_hash_ctx(hash); 3262 *hash = EVP_MD_CTX_create(); 3263 if (md) 3264 EVP_DigestInit_ex(*hash, md, NULL); 3265 return (*hash); 3266} 3267 3268void 3269ssl_clear_hash_ctx(EVP_MD_CTX **hash) 3270{ 3271 if (*hash) 3272 EVP_MD_CTX_destroy(*hash); 3273 *hash = NULL; 3274} 3275 3276void 3277SSL_set_debug(SSL *s, int debug) 3278{ 3279 s->debug = debug; 3280} 3281 3282int 3283SSL_cache_hit(SSL *s) 3284{ 3285 return (s->hit); 3286} 3287 3288IMPLEMENT_STACK_OF(SSL_CIPHER) 3289IMPLEMENT_STACK_OF(SSL_COMP) 3290IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, 3291 ssl_cipher_id); 3292