ssl_lib.c revision 1.39
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 "kssl_lcl.h" 148#include <openssl/objects.h> 149#include <openssl/lhash.h> 150#include <openssl/x509v3.h> 151#include <openssl/rand.h> 152#include <openssl/ocsp.h> 153#ifndef OPENSSL_NO_DH 154#include <openssl/dh.h> 155#endif 156#ifndef OPENSSL_NO_ENGINE 157#include <openssl/engine.h> 158#endif 159 160const char *SSL_version_str = OPENSSL_VERSION_TEXT; 161 162SSL3_ENC_METHOD ssl3_undef_enc_method = { 163 /* evil casts, but these functions are only called if there's a library bug */ 164 (int (*)(SSL *, int))ssl_undefined_function, 165 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, 166 ssl_undefined_function, 167 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function, 168 (int (*)(SSL*, int))ssl_undefined_function, 169 (int (*)(SSL *, const char*, int, unsigned char *))ssl_undefined_function, 170 0, /* finish_mac_length */ 171 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function, 172 NULL, /* client_finished_label */ 173 0, /* client_finished_label_len */ 174 NULL, /* server_finished_label */ 175 0, /* server_finished_label_len */ 176 (int (*)(int))ssl_undefined_function, 177 (int (*)(SSL *, unsigned char *, size_t, const char *, 178 size_t, const unsigned char *, size_t, 179 int use_context)) ssl_undefined_function, 180}; 181 182int 183SSL_clear(SSL *s) 184{ 185 186 if (s->method == NULL) { 187 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); 188 return (0); 189 } 190 191 if (ssl_clear_bad_session(s)) { 192 SSL_SESSION_free(s->session); 193 s->session = NULL; 194 } 195 196 s->error = 0; 197 s->hit = 0; 198 s->shutdown = 0; 199 200 if (s->renegotiate) { 201 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); 202 return 0; 203 } 204 205 s->type = 0; 206 207 s->state = SSL_ST_BEFORE|((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT); 208 209 s->version = s->method->version; 210 s->client_version = s->version; 211 s->rwstate = SSL_NOTHING; 212 s->rstate = SSL_ST_READ_HEADER; 213#if 0 214 s->read_ahead = s->ctx->read_ahead; 215#endif 216 217 if (s->init_buf != NULL) { 218 BUF_MEM_free(s->init_buf); 219 s->init_buf = NULL; 220 } 221 222 ssl_clear_cipher_ctx(s); 223 ssl_clear_hash_ctx(&s->read_hash); 224 ssl_clear_hash_ctx(&s->write_hash); 225 226 s->first_packet = 0; 227 228#if 1 229 /* Check to see if we were changed into a different method, if 230 * so, revert back if we are not doing session-id reuse. */ 231 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method)) { 232 s->method->ssl_free(s); 233 s->method = s->ctx->method; 234 if (!s->method->ssl_new(s)) 235 return (0); 236 } else 237#endif 238 s->method->ssl_clear(s); 239 return (1); 240} 241 242/* Used to change an SSL_CTXs default SSL method type */ 243int 244SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) 245{ 246 STACK_OF(SSL_CIPHER) *sk; 247 248 ctx->method = meth; 249 250 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), 251 &(ctx->cipher_list_by_id), SSL_DEFAULT_CIPHER_LIST); 252 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { 253 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 254 return (0); 255 } 256 return (1); 257} 258 259SSL * 260SSL_new(SSL_CTX *ctx) 261{ 262 SSL *s; 263 264 if (ctx == NULL) { 265 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); 266 return (NULL); 267 } 268 if (ctx->method == NULL) { 269 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 270 return (NULL); 271 } 272 273 s = calloc(1, sizeof(SSL)); 274 if (s == NULL) 275 goto err; 276 277#ifndef OPENSSL_NO_KRB5 278 s->kssl_ctx = kssl_ctx_new(); 279#endif /* OPENSSL_NO_KRB5 */ 280 281 s->options = ctx->options; 282 s->mode = ctx->mode; 283 s->max_cert_list = ctx->max_cert_list; 284 285 if (ctx->cert != NULL) { 286 /* Earlier library versions used to copy the pointer to 287 * the CERT, not its contents; only when setting new 288 * parameters for the per-SSL copy, ssl_cert_new would be 289 * called (and the direct reference to the per-SSL_CTX 290 * settings would be lost, but those still were indirectly 291 * accessed for various purposes, and for that reason they 292 * used to be known as s->ctx->default_cert). 293 * Now we don't look at the SSL_CTX's CERT after having 294 * duplicated it once. */ 295 296 s->cert = ssl_cert_dup(ctx->cert); 297 if (s->cert == NULL) 298 goto err; 299 } else 300 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 301 302 s->read_ahead = ctx->read_ahead; 303 s->msg_callback = ctx->msg_callback; 304 s->msg_callback_arg = ctx->msg_callback_arg; 305 s->verify_mode = ctx->verify_mode; 306#if 0 307 s->verify_depth = ctx->verify_depth; 308#endif 309 s->sid_ctx_length = ctx->sid_ctx_length; 310 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 311 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); 312 s->verify_callback = ctx->default_verify_callback; 313 s->generate_session_id = ctx->generate_session_id; 314 315 s->param = X509_VERIFY_PARAM_new(); 316 if (!s->param) 317 goto err; 318 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 319#if 0 320 s->purpose = ctx->purpose; 321 s->trust = ctx->trust; 322#endif 323 s->quiet_shutdown = ctx->quiet_shutdown; 324 s->max_send_fragment = ctx->max_send_fragment; 325 326 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 327 s->ctx = ctx; 328#ifndef OPENSSL_NO_TLSEXT 329 s->tlsext_debug_cb = 0; 330 s->tlsext_debug_arg = NULL; 331 s->tlsext_ticket_expected = 0; 332 s->tlsext_status_type = -1; 333 s->tlsext_status_expected = 0; 334 s->tlsext_ocsp_ids = NULL; 335 s->tlsext_ocsp_exts = NULL; 336 s->tlsext_ocsp_resp = NULL; 337 s->tlsext_ocsp_resplen = -1; 338 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 339 s->initial_ctx = ctx; 340# ifndef OPENSSL_NO_NEXTPROTONEG 341 s->next_proto_negotiated = NULL; 342# endif 343#endif 344 345 s->verify_result = X509_V_OK; 346 347 s->method = ctx->method; 348 349 if (!s->method->ssl_new(s)) 350 goto err; 351 352 s->references = 1; 353 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; 354 355 SSL_clear(s); 356 357 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 358 359#ifndef OPENSSL_NO_PSK 360 s->psk_client_callback = ctx->psk_client_callback; 361 s->psk_server_callback = ctx->psk_server_callback; 362#endif 363 364 return (s); 365err: 366 if (s != NULL) { 367 if (s->cert != NULL) 368 ssl_cert_free(s->cert); 369 if (s->ctx != NULL) 370 SSL_CTX_free(s->ctx); /* decrement reference count */ 371 free(s); 372 } 373 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); 374 return (NULL); 375} 376 377int 378SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, 379 unsigned int sid_ctx_len) 380{ 381 if (sid_ctx_len > sizeof ctx->sid_ctx) { 382 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 383 return 0; 384 } 385 ctx->sid_ctx_length = sid_ctx_len; 386 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); 387 388 return 1; 389} 390 391int 392SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, 393 unsigned int sid_ctx_len) 394{ 395 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { 396 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 397 return 0; 398 } 399 ssl->sid_ctx_length = sid_ctx_len; 400 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); 401 402 return 1; 403} 404 405int 406SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 407{ 408 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 409 ctx->generate_session_id = cb; 410 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 411 return 1; 412} 413 414int 415SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 416{ 417 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 418 ssl->generate_session_id = cb; 419 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 420 return 1; 421} 422 423int 424SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 425 unsigned int id_len) 426{ 427 /* 428 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp 429 * shows how we can "construct" a session to give us the desired 430 * check - ie. to find if there's a session in the hash table 431 * that would conflict with any new session built out of this 432 * id/id_len and the ssl_version in use by this SSL. 433 */ 434 SSL_SESSION r, *p; 435 436 if (id_len > sizeof r.session_id) 437 return 0; 438 439 r.ssl_version = ssl->version; 440 r.session_id_length = id_len; 441 memcpy(r.session_id, id, id_len); 442 443 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 444 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r); 445 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 446 return (p != NULL); 447} 448 449int 450SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 451{ 452 return X509_VERIFY_PARAM_set_purpose(s->param, purpose); 453} 454 455int 456SSL_set_purpose(SSL *s, int purpose) 457{ 458 return X509_VERIFY_PARAM_set_purpose(s->param, purpose); 459} 460 461int 462SSL_CTX_set_trust(SSL_CTX *s, int trust) 463{ 464 return X509_VERIFY_PARAM_set_trust(s->param, trust); 465} 466 467int 468SSL_set_trust(SSL *s, int trust) 469{ 470 return X509_VERIFY_PARAM_set_trust(s->param, trust); 471} 472 473int 474SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 475{ 476 return X509_VERIFY_PARAM_set1(ctx->param, vpm); 477} 478 479int 480SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 481{ 482 return X509_VERIFY_PARAM_set1(ssl->param, vpm); 483} 484 485void 486SSL_free(SSL *s) 487{ 488 int i; 489 490 if (s == NULL) 491 return; 492 493 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); 494 if (i > 0) 495 return; 496 497 if (s->param) 498 X509_VERIFY_PARAM_free(s->param); 499 500 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 501 502 if (s->bbio != NULL) { 503 /* If the buffering BIO is in place, pop it off */ 504 if (s->bbio == s->wbio) { 505 s->wbio = BIO_pop(s->wbio); 506 } 507 BIO_free(s->bbio); 508 s->bbio = NULL; 509 } 510 if (s->rbio != NULL) 511 BIO_free_all(s->rbio); 512 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 513 BIO_free_all(s->wbio); 514 515 if (s->init_buf != NULL) 516 BUF_MEM_free(s->init_buf); 517 518 /* add extra stuff */ 519 if (s->cipher_list != NULL) 520 sk_SSL_CIPHER_free(s->cipher_list); 521 if (s->cipher_list_by_id != NULL) 522 sk_SSL_CIPHER_free(s->cipher_list_by_id); 523 524 /* Make the next call work :-) */ 525 if (s->session != NULL) { 526 ssl_clear_bad_session(s); 527 SSL_SESSION_free(s->session); 528 } 529 530 ssl_clear_cipher_ctx(s); 531 ssl_clear_hash_ctx(&s->read_hash); 532 ssl_clear_hash_ctx(&s->write_hash); 533 534 if (s->cert != NULL) 535 ssl_cert_free(s->cert); 536 /* Free up if allocated */ 537 538#ifndef OPENSSL_NO_TLSEXT 539 if (s->tlsext_hostname) 540 free(s->tlsext_hostname); 541 if (s->initial_ctx) 542 SSL_CTX_free(s->initial_ctx); 543#ifndef OPENSSL_NO_EC 544 if (s->tlsext_ecpointformatlist) 545 free(s->tlsext_ecpointformatlist); 546 if (s->tlsext_ellipticcurvelist) 547 free(s->tlsext_ellipticcurvelist); 548#endif /* OPENSSL_NO_EC */ 549 if (s->tlsext_opaque_prf_input) 550 free(s->tlsext_opaque_prf_input); 551 if (s->tlsext_ocsp_exts) 552 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 553 X509_EXTENSION_free); 554 if (s->tlsext_ocsp_ids) 555 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 556 if (s->tlsext_ocsp_resp) 557 free(s->tlsext_ocsp_resp); 558#endif 559 560 if (s->client_CA != NULL) 561 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); 562 563 if (s->method != NULL) 564 s->method->ssl_free(s); 565 566 if (s->ctx) 567 SSL_CTX_free(s->ctx); 568 569#ifndef OPENSSL_NO_KRB5 570 if (s->kssl_ctx != NULL) 571 kssl_ctx_free(s->kssl_ctx); 572#endif /* OPENSSL_NO_KRB5 */ 573 574#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 575 if (s->next_proto_negotiated) 576 free(s->next_proto_negotiated); 577#endif 578 579#ifndef OPENSSL_NO_SRTP 580 if (s->srtp_profiles) 581 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); 582#endif 583 584 free(s); 585} 586 587void 588SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) 589{ 590 /* If the output buffering BIO is still in place, remove it 591 */ 592 if (s->bbio != NULL) { 593 if (s->wbio == s->bbio) { 594 s->wbio = s->wbio->next_bio; 595 s->bbio->next_bio = NULL; 596 } 597 } 598 if ((s->rbio != NULL) && (s->rbio != rbio)) 599 BIO_free_all(s->rbio); 600 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 601 BIO_free_all(s->wbio); 602 s->rbio = rbio; 603 s->wbio = wbio; 604} 605 606BIO * 607SSL_get_rbio(const SSL *s) 608{ 609 return (s->rbio); 610} 611 612BIO * 613SSL_get_wbio(const SSL *s) 614{ 615 return (s->wbio); 616} 617 618int 619SSL_get_fd(const SSL *s) 620{ 621 return (SSL_get_rfd(s)); 622} 623 624int 625SSL_get_rfd(const SSL *s) 626{ 627 int ret = -1; 628 BIO *b, *r; 629 630 b = SSL_get_rbio(s); 631 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 632 if (r != NULL) 633 BIO_get_fd(r, &ret); 634 return (ret); 635} 636 637int 638SSL_get_wfd(const SSL *s) 639{ 640 int ret = -1; 641 BIO *b, *r; 642 643 b = SSL_get_wbio(s); 644 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); 645 if (r != NULL) 646 BIO_get_fd(r, &ret); 647 return (ret); 648} 649 650#ifndef OPENSSL_NO_SOCK 651int 652SSL_set_fd(SSL *s, int fd) 653{ 654 int ret = 0; 655 BIO *bio = NULL; 656 657 bio = BIO_new(BIO_s_socket()); 658 659 if (bio == NULL) { 660 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); 661 goto err; 662 } 663 BIO_set_fd(bio, fd, BIO_NOCLOSE); 664 SSL_set_bio(s, bio, bio); 665 ret = 1; 666err: 667 return (ret); 668} 669 670int 671SSL_set_wfd(SSL *s, int fd) 672{ 673 int ret = 0; 674 BIO *bio = NULL; 675 676 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 677 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { 678 bio = BIO_new(BIO_s_socket()); 679 680 if (bio == NULL) 681 { SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); 682 goto err; 683 } 684 BIO_set_fd(bio, fd, BIO_NOCLOSE); 685 SSL_set_bio(s, SSL_get_rbio(s), bio); 686 } else 687 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); 688 ret = 1; 689err: 690 return (ret); 691} 692 693int 694SSL_set_rfd(SSL *s, int fd) 695{ 696 int ret = 0; 697 BIO *bio = NULL; 698 699 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 700 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { 701 bio = BIO_new(BIO_s_socket()); 702 703 if (bio == NULL) { 704 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); 705 goto err; 706 } 707 BIO_set_fd(bio, fd, BIO_NOCLOSE); 708 SSL_set_bio(s, bio, SSL_get_wbio(s)); 709 } else 710 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); 711 ret = 1; 712err: 713 return (ret); 714} 715#endif 716 717 718/* return length of latest Finished message we sent, copy to 'buf' */ 719size_t 720SSL_get_finished(const SSL *s, void *buf, size_t count) 721{ 722 size_t ret = 0; 723 724 if (s->s3 != NULL) { 725 ret = s->s3->tmp.finish_md_len; 726 if (count > ret) 727 count = ret; 728 memcpy(buf, s->s3->tmp.finish_md, count); 729 } 730 return ret; 731} 732 733/* return length of latest Finished message we expected, copy to 'buf' */ 734size_t 735SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 736{ 737 size_t ret = 0; 738 739 if (s->s3 != NULL) { 740 ret = s->s3->tmp.peer_finish_md_len; 741 if (count > ret) 742 count = ret; 743 memcpy(buf, s->s3->tmp.peer_finish_md, count); 744 } 745 return ret; 746} 747 748 749int 750SSL_get_verify_mode(const SSL *s) 751{ 752 return (s->verify_mode); 753} 754 755int 756SSL_get_verify_depth(const SSL *s) 757{ 758 return X509_VERIFY_PARAM_get_depth(s->param); 759} 760 761int (*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *) 762{ 763 return (s->verify_callback); 764} 765 766int 767SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 768{ 769 return (ctx->verify_mode); 770} 771 772int 773SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 774{ 775 return X509_VERIFY_PARAM_get_depth(ctx->param); 776} 777 778int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *) 779{ 780 return (ctx->default_verify_callback); 781} 782 783void 784SSL_set_verify(SSL *s, int mode, 785 int (*callback)(int ok, X509_STORE_CTX *ctx)) 786{ 787 s->verify_mode = mode; 788 if (callback != NULL) 789 s->verify_callback = callback; 790} 791 792void 793SSL_set_verify_depth(SSL *s, int depth) 794{ 795 X509_VERIFY_PARAM_set_depth(s->param, depth); 796} 797 798void 799SSL_set_read_ahead(SSL *s, int yes) 800{ 801 s->read_ahead = yes; 802} 803 804int 805SSL_get_read_ahead(const SSL *s) 806{ 807 return (s->read_ahead); 808} 809 810int 811SSL_pending(const SSL *s) 812{ 813 /* SSL_pending cannot work properly if read-ahead is enabled 814 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 815 * and it is impossible to fix since SSL_pending cannot report 816 * errors that may be observed while scanning the new data. 817 * (Note that SSL_pending() is often used as a boolean value, 818 * so we'd better not return -1.) 819 */ 820 return (s->method->ssl_pending(s)); 821} 822 823X509 * 824SSL_get_peer_certificate(const SSL *s) 825{ 826 X509 *r; 827 828 if ((s == NULL) || (s->session == NULL)) 829 r = NULL; 830 else 831 r = s->session->peer; 832 833 if (r == NULL) 834 return (r); 835 836 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509); 837 838 return (r); 839} 840 841STACK_OF(X509) * 842SSL_get_peer_cert_chain(const SSL *s) 843{ 844 STACK_OF(X509) *r; 845 846 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 847 r = NULL; 848 else 849 r = s->session->sess_cert->cert_chain; 850 851 /* If we are a client, cert_chain includes the peer's own 852 * certificate; 853if we are a server, it does not. */ 854 855 return (r); 856} 857 858/* Now in theory, since the calling process own 't' it should be safe to 859 * modify. We need to be able to read f without being hassled */ 860void 861SSL_copy_session_id(SSL *t, const SSL *f) 862{ 863 CERT *tmp; 864 865 /* Do we need to to SSL locking? */ 866 SSL_set_session(t, SSL_get_session(f)); 867 868 /* what if we are setup as SSLv2 but want to talk SSLv3 or 869 * vice-versa */ 870 if (t->method != f->method) { 871 t->method->ssl_free(t); /* cleanup current */ 872 t->method=f->method; /* change method */ 873 t->method->ssl_new(t); /* setup new */ 874 } 875 876 tmp = t->cert; 877 if (f->cert != NULL) { 878 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); 879 t->cert = f->cert; 880 } else 881 t->cert = NULL; 882 if (tmp != NULL) 883 ssl_cert_free(tmp); 884 SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length); 885} 886 887/* Fix this so it checks all the valid key/cert options */ 888int 889SSL_CTX_check_private_key(const SSL_CTX *ctx) 890{ 891 if ((ctx == NULL) || 892 (ctx->cert == NULL) || 893 (ctx->cert->key->x509 == NULL)) { 894 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); 895 return (0); 896 } 897 if (ctx->cert->key->privatekey == NULL) { 898 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 899 return (0); 900 } 901 return (X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 902} 903 904/* Fix this function so that it takes an optional type parameter */ 905int 906SSL_check_private_key(const SSL *ssl) 907{ 908 if (ssl == NULL) { 909 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); 910 return (0); 911 } 912 if (ssl->cert == NULL) { 913 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); 914 return 0; 915 } 916 if (ssl->cert->key->x509 == NULL) { 917 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); 918 return (0); 919 } 920 if (ssl->cert->key->privatekey == NULL) { 921 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); 922 return (0); 923 } 924 return(X509_check_private_key(ssl->cert->key->x509, 925 ssl->cert->key->privatekey)); 926} 927 928int 929SSL_accept(SSL *s) 930{ 931 if (s->handshake_func == 0) 932 /* Not properly initialized yet */ 933 SSL_set_accept_state(s); 934 935 return (s->method->ssl_accept(s)); 936} 937 938int 939SSL_connect(SSL *s) 940{ 941 if (s->handshake_func == 0) 942 /* Not properly initialized yet */ 943 SSL_set_connect_state(s); 944 945 return (s->method->ssl_connect(s)); 946} 947 948long 949SSL_get_default_timeout(const SSL *s) 950{ 951 return (s->method->get_timeout()); 952} 953 954int 955SSL_read(SSL *s, void *buf, int num) 956{ 957 if (s->handshake_func == 0) { 958 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 959 return -1; 960 } 961 962 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 963 s->rwstate = SSL_NOTHING; 964 return (0); 965 } 966 return (s->method->ssl_read(s, buf, num)); 967} 968 969int 970SSL_peek(SSL *s, void *buf, int num) 971{ 972 if (s->handshake_func == 0) { 973 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); 974 return -1; 975 } 976 977 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { 978 return (0); 979 } 980 return (s->method->ssl_peek(s, buf, num)); 981} 982 983int 984SSL_write(SSL *s, const void *buf, int num) 985{ 986 if (s->handshake_func == 0) { 987 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 988 return -1; 989 } 990 991 if (s->shutdown & SSL_SENT_SHUTDOWN) { 992 s->rwstate = SSL_NOTHING; 993 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN); 994 return (-1); 995 } 996 return (s->method->ssl_write(s, buf, num)); 997} 998 999int 1000SSL_shutdown(SSL *s) 1001{ 1002 /* Note that this function behaves differently from what one might 1003 * expect. Return values are 0 for no success (yet), 1004 * 1 for success; but calling it once is usually not enough, 1005 * even if blocking I/O is used (see ssl3_shutdown). 1006 */ 1007 1008 if (s->handshake_func == 0) { 1009 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 1010 return -1; 1011 } 1012 1013 if ((s != NULL) && !SSL_in_init(s)) 1014 return (s->method->ssl_shutdown(s)); 1015 else 1016 return (1); 1017} 1018 1019int 1020SSL_renegotiate(SSL *s) 1021{ 1022 if (s->renegotiate == 0) 1023 s->renegotiate = 1; 1024 1025 s->new_session = 1; 1026 1027 return (s->method->ssl_renegotiate(s)); 1028} 1029 1030int 1031SSL_renegotiate_abbreviated(SSL *s) 1032{ 1033 if (s->renegotiate == 0) 1034 s->renegotiate = 1; 1035 1036 s->new_session = 0; 1037 1038 return (s->method->ssl_renegotiate(s)); 1039} 1040 1041int 1042SSL_renegotiate_pending(SSL *s) 1043{ 1044 /* becomes true when negotiation is requested; 1045 * false again once a handshake has finished */ 1046 return (s->renegotiate != 0); 1047} 1048 1049long 1050SSL_ctrl(SSL *s, int cmd, long larg, void *parg) 1051{ 1052 long l; 1053 1054 switch (cmd) { 1055 case SSL_CTRL_GET_READ_AHEAD: 1056 return (s->read_ahead); 1057 case SSL_CTRL_SET_READ_AHEAD: 1058 l = s->read_ahead; 1059 s->read_ahead = larg; 1060 return (l); 1061 1062 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1063 s->msg_callback_arg = parg; 1064 return 1; 1065 1066 case SSL_CTRL_OPTIONS: 1067 return (s->options|=larg); 1068 case SSL_CTRL_CLEAR_OPTIONS: 1069 return (s->options&=~larg); 1070 case SSL_CTRL_MODE: 1071 return (s->mode|=larg); 1072 case SSL_CTRL_CLEAR_MODE: 1073 return (s->mode &=~larg); 1074 case SSL_CTRL_GET_MAX_CERT_LIST: 1075 return (s->max_cert_list); 1076 case SSL_CTRL_SET_MAX_CERT_LIST: 1077 l = s->max_cert_list; 1078 s->max_cert_list = larg; 1079 return (l); 1080 case SSL_CTRL_SET_MTU: 1081#ifndef OPENSSL_NO_DTLS1 1082 if (larg < (long)dtls1_min_mtu()) 1083 return 0; 1084#endif 1085 1086 if (SSL_version(s) == DTLS1_VERSION || 1087 SSL_version(s) == DTLS1_BAD_VER) { 1088 s->d1->mtu = larg; 1089 return larg; 1090 } 1091 return 0; 1092 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1093 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1094 return 0; 1095 s->max_send_fragment = larg; 1096 return 1; 1097 case SSL_CTRL_GET_RI_SUPPORT: 1098 if (s->s3) 1099 return s->s3->send_connection_binding; 1100 else return 0; 1101 default: 1102 return (s->method->ssl_ctrl(s, cmd, larg, parg)); 1103 } 1104} 1105 1106long 1107SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1108{ 1109 switch (cmd) { 1110 case SSL_CTRL_SET_MSG_CALLBACK: 1111 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1112 return 1; 1113 1114 default: 1115 return (s->method->ssl_callback_ctrl(s, cmd, fp)); 1116 } 1117} 1118 1119LHASH_OF(SSL_SESSION) * 1120SSL_CTX_sessions(SSL_CTX *ctx) 1121{ 1122 return ctx->sessions; 1123} 1124 1125long 1126SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) 1127{ 1128 long l; 1129 1130 switch (cmd) { 1131 case SSL_CTRL_GET_READ_AHEAD: 1132 return (ctx->read_ahead); 1133 case SSL_CTRL_SET_READ_AHEAD: 1134 l = ctx->read_ahead; 1135 ctx->read_ahead = larg; 1136 return (l); 1137 1138 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1139 ctx->msg_callback_arg = parg; 1140 return 1; 1141 1142 case SSL_CTRL_GET_MAX_CERT_LIST: 1143 return (ctx->max_cert_list); 1144 case SSL_CTRL_SET_MAX_CERT_LIST: 1145 l = ctx->max_cert_list; 1146 ctx->max_cert_list = larg; 1147 return (l); 1148 1149 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1150 l = ctx->session_cache_size; 1151 ctx->session_cache_size = larg; 1152 return (l); 1153 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1154 return (ctx->session_cache_size); 1155 case SSL_CTRL_SET_SESS_CACHE_MODE: 1156 l = ctx->session_cache_mode; 1157 ctx->session_cache_mode = larg; 1158 return (l); 1159 case SSL_CTRL_GET_SESS_CACHE_MODE: 1160 return (ctx->session_cache_mode); 1161 1162 case SSL_CTRL_SESS_NUMBER: 1163 return (lh_SSL_SESSION_num_items(ctx->sessions)); 1164 case SSL_CTRL_SESS_CONNECT: 1165 return (ctx->stats.sess_connect); 1166 case SSL_CTRL_SESS_CONNECT_GOOD: 1167 return (ctx->stats.sess_connect_good); 1168 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1169 return (ctx->stats.sess_connect_renegotiate); 1170 case SSL_CTRL_SESS_ACCEPT: 1171 return (ctx->stats.sess_accept); 1172 case SSL_CTRL_SESS_ACCEPT_GOOD: 1173 return (ctx->stats.sess_accept_good); 1174 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1175 return (ctx->stats.sess_accept_renegotiate); 1176 case SSL_CTRL_SESS_HIT: 1177 return (ctx->stats.sess_hit); 1178 case SSL_CTRL_SESS_CB_HIT: 1179 return (ctx->stats.sess_cb_hit); 1180 case SSL_CTRL_SESS_MISSES: 1181 return (ctx->stats.sess_miss); 1182 case SSL_CTRL_SESS_TIMEOUTS: 1183 return (ctx->stats.sess_timeout); 1184 case SSL_CTRL_SESS_CACHE_FULL: 1185 return (ctx->stats.sess_cache_full); 1186 case SSL_CTRL_OPTIONS: 1187 return (ctx->options|=larg); 1188 case SSL_CTRL_CLEAR_OPTIONS: 1189 return (ctx->options&=~larg); 1190 case SSL_CTRL_MODE: 1191 return (ctx->mode|=larg); 1192 case SSL_CTRL_CLEAR_MODE: 1193 return (ctx->mode&=~larg); 1194 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1195 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1196 return 0; 1197 ctx->max_send_fragment = larg; 1198 return 1; 1199 default: 1200 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); 1201 } 1202} 1203 1204long 1205SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1206{ 1207 switch (cmd) { 1208 case SSL_CTRL_SET_MSG_CALLBACK: 1209 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1210 return 1; 1211 1212 default: 1213 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); 1214 } 1215} 1216 1217int 1218ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1219{ 1220 long l; 1221 1222 l = a->id - b->id; 1223 if (l == 0L) 1224 return (0); 1225 else 1226 return ((l > 0) ? 1:-1); 1227} 1228 1229int 1230ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1231 const SSL_CIPHER * const *bp) 1232{ 1233 long l; 1234 1235 l = (*ap)->id - (*bp)->id; 1236 if (l == 0L) 1237 return (0); 1238 else 1239 return ((l > 0) ? 1:-1); 1240} 1241 1242/** return a STACK of the ciphers available for the SSL and in order of 1243 * preference */ 1244STACK_OF(SSL_CIPHER) * 1245SSL_get_ciphers(const SSL *s) 1246{ 1247 if (s != NULL) { 1248 if (s->cipher_list != NULL) { 1249 return (s->cipher_list); 1250 } else if ((s->ctx != NULL) && 1251 (s->ctx->cipher_list != NULL)) { 1252 return (s->ctx->cipher_list); 1253 } 1254 } 1255 return (NULL); 1256} 1257 1258/** return a STACK of the ciphers available for the SSL and in order of 1259 * algorithm id */ 1260STACK_OF(SSL_CIPHER) * 1261ssl_get_ciphers_by_id(SSL *s) 1262{ 1263 if (s != NULL) { 1264 if (s->cipher_list_by_id != NULL) { 1265 return (s->cipher_list_by_id); 1266 } else if ((s->ctx != NULL) && 1267 (s->ctx->cipher_list_by_id != NULL)) { 1268 return (s->ctx->cipher_list_by_id); 1269 } 1270 } 1271 return (NULL); 1272} 1273 1274/** The old interface to get the same thing as SSL_get_ciphers() */ 1275const char * 1276SSL_get_cipher_list(const SSL *s, int n) 1277{ 1278 SSL_CIPHER *c; 1279 STACK_OF(SSL_CIPHER) *sk; 1280 1281 if (s == NULL) 1282 return (NULL); 1283 sk = SSL_get_ciphers(s); 1284 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1285 return (NULL); 1286 c = sk_SSL_CIPHER_value(sk, n); 1287 if (c == NULL) 1288 return (NULL); 1289 return (c->name); 1290} 1291 1292/** specify the ciphers to be used by default by the SSL_CTX */ 1293int 1294SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1295{ 1296 STACK_OF(SSL_CIPHER) *sk; 1297 1298 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, 1299 &ctx->cipher_list_by_id, str); 1300 /* ssl_create_cipher_list may return an empty stack if it 1301 * was unable to find a cipher matching the given rule string 1302 * (for example if the rule string specifies a cipher which 1303 * has been disabled). This is not an error as far as 1304 * ssl_create_cipher_list is concerned, and hence 1305 * ctx->cipher_list and ctx->cipher_list_by_id has been 1306 * updated. */ 1307 if (sk == NULL) 1308 return 0; 1309 else if (sk_SSL_CIPHER_num(sk) == 0) { 1310 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1311 return 0; 1312 } 1313 return 1; 1314} 1315 1316/** specify the ciphers to be used by the SSL */ 1317int 1318SSL_set_cipher_list(SSL *s, const char *str) 1319{ 1320 STACK_OF(SSL_CIPHER) *sk; 1321 1322 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, 1323 &s->cipher_list_by_id, str); 1324 /* see comment in SSL_CTX_set_cipher_list */ 1325 if (sk == NULL) 1326 return 0; 1327 else if (sk_SSL_CIPHER_num(sk) == 0) { 1328 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1329 return 0; 1330 } 1331 return 1; 1332} 1333 1334/* works well for SSLv2, not so good for SSLv3 */ 1335char * 1336SSL_get_shared_ciphers(const SSL *s, char *buf, int len) 1337{ 1338 char *end; 1339 STACK_OF(SSL_CIPHER) *sk; 1340 SSL_CIPHER *c; 1341 size_t curlen = 0; 1342 int i; 1343 1344 if ((s->session == NULL) || (s->session->ciphers == NULL) || 1345 (len < 2)) 1346 return (NULL); 1347 1348 sk = s->session->ciphers; 1349 buf[0] = '\0'; 1350 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { 1351 c = sk_SSL_CIPHER_value(sk, i); 1352 end = buf + curlen; 1353 if (strlcat(buf, c->name, len) >= len || 1354 (curlen = strlcat(buf, ":", len)) >= len) { 1355 /* remove truncated cipher from list */ 1356 *end = '\0'; 1357 break; 1358 } 1359 } 1360 /* remove trailing colon */ 1361 if ((end = strrchr(buf, ':')) != NULL) 1362 *end = '\0'; 1363 return (buf); 1364} 1365 1366int 1367ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk, unsigned char *p, 1368 int (*put_cb)(const SSL_CIPHER *, unsigned char *)) 1369{ 1370 int i, j = 0; 1371 SSL_CIPHER *c; 1372 unsigned char *q; 1373#ifndef OPENSSL_NO_KRB5 1374 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx); 1375#endif /* OPENSSL_NO_KRB5 */ 1376 1377 if (sk == NULL) 1378 return (0); 1379 q = p; 1380 1381 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { 1382 c = sk_SSL_CIPHER_value(sk, i); 1383 /* Skip TLS v1.2 only ciphersuites if lower than v1.2 */ 1384 if ((c->algorithm_ssl & SSL_TLSV1_2) && 1385 (TLS1_get_client_version(s) < TLS1_2_VERSION)) 1386 continue; 1387#ifndef OPENSSL_NO_KRB5 1388 if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) && 1389 nokrb5) 1390 continue; 1391#endif /* OPENSSL_NO_KRB5 */ 1392#ifndef OPENSSL_NO_PSK 1393 /* with PSK there must be client callback set */ 1394 if (((c->algorithm_mkey & SSL_kPSK) || (c->algorithm_auth & SSL_aPSK)) && 1395 s->psk_client_callback == NULL) 1396 continue; 1397#endif /* OPENSSL_NO_PSK */ 1398 j = put_cb ? put_cb(c, p) : ssl_put_cipher_by_char(s, c, p); 1399 p += j; 1400 } 1401 /* If p == q, no ciphers and caller indicates an error. Otherwise 1402 * add SCSV if not renegotiating. 1403 */ 1404 if (p != q && !s->renegotiate) { 1405 static SSL_CIPHER scsv = { 1406 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0 1407 }; 1408 j = put_cb ? put_cb(&scsv, p) : ssl_put_cipher_by_char(s, &scsv, p); 1409 p += j; 1410#ifdef OPENSSL_RI_DEBUG 1411 fprintf(stderr, "SCSV sent by client\n"); 1412#endif 1413 } 1414 1415 return (p - q); 1416} 1417 1418STACK_OF(SSL_CIPHER) * 1419ssl_bytes_to_cipher_list(SSL *s, unsigned char *p, int num, 1420 STACK_OF(SSL_CIPHER) **skp) 1421{ 1422 const SSL_CIPHER *c; 1423 STACK_OF(SSL_CIPHER) *sk; 1424 int i, n; 1425 if (s->s3) 1426 s->s3->send_connection_binding = 0; 1427 1428 n = ssl_put_cipher_by_char(s, NULL, NULL); 1429 if ((num % n) != 0) { 1430 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1431 return (NULL); 1432 } 1433 if ((skp == NULL) || (*skp == NULL)) 1434 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1435 else { 1436 sk= *skp; 1437 sk_SSL_CIPHER_zero(sk); 1438 } 1439 1440 for (i = 0; i < num; i += n) { 1441 /* Check for SCSV */ 1442 if (s->s3 && (n != 3 || !p[0]) && 1443 (p[n - 2] == ((SSL3_CK_SCSV >> 8) & 0xff)) && 1444 (p[n - 1] == (SSL3_CK_SCSV & 0xff))) { 1445 /* SCSV fatal if renegotiating */ 1446 if (s->renegotiate) { 1447 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING); 1448 ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE); 1449 1450 goto err; 1451 } 1452 s->s3->send_connection_binding = 1; 1453 p += n; 1454#ifdef OPENSSL_RI_DEBUG 1455 fprintf(stderr, "SCSV received by server\n"); 1456#endif 1457 continue; 1458 } 1459 1460 c = ssl_get_cipher_by_char(s, p); 1461 p += n; 1462 if (c != NULL) { 1463 if (!sk_SSL_CIPHER_push(sk, c)) { 1464 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); 1465 goto err; 1466 } 1467 } 1468 } 1469 1470 if (skp != NULL) 1471 *skp = sk; 1472 return (sk); 1473err: 1474 if ((skp == NULL) || (*skp == NULL)) 1475 sk_SSL_CIPHER_free(sk); 1476 return (NULL); 1477} 1478 1479 1480#ifndef OPENSSL_NO_TLSEXT 1481/** return a servername extension value if provided in Client Hello, or NULL. 1482 * So far, only host_name types are defined (RFC 3546). 1483 */ 1484 1485const char * 1486SSL_get_servername(const SSL *s, const int type) 1487{ 1488 if (type != TLSEXT_NAMETYPE_host_name) 1489 return NULL; 1490 1491 return s->session && !s->tlsext_hostname ? 1492 s->session->tlsext_hostname : 1493 s->tlsext_hostname; 1494} 1495 1496int 1497SSL_get_servername_type(const SSL *s) 1498{ 1499 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname)) 1500 return TLSEXT_NAMETYPE_host_name; 1501 return -1; 1502} 1503 1504# ifndef OPENSSL_NO_NEXTPROTONEG 1505/* SSL_select_next_proto implements the standard protocol selection. It is 1506 * expected that this function is called from the callback set by 1507 * SSL_CTX_set_next_proto_select_cb. 1508 * 1509 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte 1510 * strings. The length byte itself is not included in the length. A byte 1511 * string of length 0 is invalid. No byte string may be truncated. 1512 * 1513 * The current, but experimental algorithm for selecting the protocol is: 1514 * 1515 * 1) If the server doesn't support NPN then this is indicated to the 1516 * callback. In this case, the client application has to abort the connection 1517 * or have a default application level protocol. 1518 * 1519 * 2) If the server supports NPN, but advertises an empty list then the 1520 * client selects the first protcol in its list, but indicates via the 1521 * API that this fallback case was enacted. 1522 * 1523 * 3) Otherwise, the client finds the first protocol in the server's list 1524 * that it supports and selects this protocol. This is because it's 1525 * assumed that the server has better information about which protocol 1526 * a client should use. 1527 * 1528 * 4) If the client doesn't support any of the server's advertised 1529 * protocols, then this is treated the same as case 2. 1530 * 1531 * It returns either 1532 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or 1533 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. 1534 */ 1535int 1536SSL_select_next_proto(unsigned char **out, unsigned char *outlen, const unsigned char *server, unsigned int server_len, const unsigned char *client, unsigned int client_len) 1537{ 1538 unsigned int i, j; 1539 const unsigned char *result; 1540 int status = OPENSSL_NPN_UNSUPPORTED; 1541 1542 /* For each protocol in server preference order, see if we support it. */ 1543 for (i = 0; i < server_len; ) { 1544 for (j = 0; j < client_len; ) { 1545 if (server[i] == client[j] && 1546 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { 1547 /* We found a match */ 1548 result = &server[i]; 1549 status = OPENSSL_NPN_NEGOTIATED; 1550 goto found; 1551 } 1552 j += client[j]; 1553 j++; 1554 } 1555 i += server[i]; 1556 i++; 1557 } 1558 1559 /* There's no overlap between our protocols and the server's list. */ 1560 result = client; 1561 status = OPENSSL_NPN_NO_OVERLAP; 1562 1563 found: 1564 *out = (unsigned char *) result + 1; 1565 *outlen = result[0]; 1566 return status; 1567} 1568 1569/* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's 1570 * requested protocol for this connection and returns 0. If the client didn't 1571 * request any protocol, then *data is set to NULL. 1572 * 1573 * Note that the client can request any protocol it chooses. The value returned 1574 * from this function need not be a member of the list of supported protocols 1575 * provided by the callback. 1576 */ 1577void 1578SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, unsigned *len) 1579{ 1580 *data = s->next_proto_negotiated; 1581 if (!*data) { 1582 *len = 0; 1583 } else { 1584 *len = s->next_proto_negotiated_len; 1585 } 1586} 1587 1588/* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a 1589 * TLS server needs a list of supported protocols for Next Protocol 1590 * Negotiation. The returned list must be in wire format. The list is returned 1591 * by setting |out| to point to it and |outlen| to its length. This memory will 1592 * not be modified, but one should assume that the SSL* keeps a reference to 1593 * it. 1594 * 1595 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no 1596 * such extension will be included in the ServerHello. */ 1597void 1598SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl, const unsigned char **out, unsigned int *outlen, void *arg), void *arg) 1599{ 1600 ctx->next_protos_advertised_cb = cb; 1601 ctx->next_protos_advertised_cb_arg = arg; 1602} 1603 1604/* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a 1605 * client needs to select a protocol from the server's provided list. |out| 1606 * must be set to point to the selected protocol (which may be within |in|). 1607 * The length of the protocol name must be written into |outlen|. The server's 1608 * advertised protocols are provided in |in| and |inlen|. The callback can 1609 * assume that |in| is syntactically valid. 1610 * 1611 * The client must select a protocol. It is fatal to the connection if this 1612 * callback returns a value other than SSL_TLSEXT_ERR_OK. 1613 */ 1614void 1615SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg), void *arg) 1616{ 1617 ctx->next_proto_select_cb = cb; 1618 ctx->next_proto_select_cb_arg = arg; 1619} 1620# endif 1621#endif 1622 1623int 1624SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1625 const char *label, size_t llen, const unsigned char *p, size_t plen, 1626int use_context) 1627{ 1628 if (s->version < TLS1_VERSION) 1629 return -1; 1630 1631 return s->method->ssl3_enc->export_keying_material(s, out, olen, label, 1632 llen, p, plen, 1633 use_context); 1634} 1635 1636static unsigned long 1637ssl_session_hash(const SSL_SESSION *a) 1638{ 1639 unsigned long l; 1640 1641 l = (unsigned long) 1642 ((unsigned int) a->session_id[0] )| 1643 ((unsigned int) a->session_id[1]<< 8L)| 1644 ((unsigned long)a->session_id[2]<<16L)| 1645 ((unsigned long)a->session_id[3]<<24L); 1646 return (l); 1647} 1648 1649/* NB: If this function (or indeed the hash function which uses a sort of 1650 * coarser function than this one) is changed, ensure 1651 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1652 * able to construct an SSL_SESSION that will collide with any existing session 1653 * with a matching session ID. */ 1654static int 1655ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) 1656{ 1657 if (a->ssl_version != b->ssl_version) 1658 return (1); 1659 if (a->session_id_length != b->session_id_length) 1660 return (1); 1661 return (memcmp(a->session_id, b->session_id, a->session_id_length)); 1662} 1663 1664/* These wrapper functions should remain rather than redeclaring 1665 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1666 * variable. The reason is that the functions aren't static, they're exposed via 1667 * ssl.h. */ 1668static 1669IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION) 1670static 1671IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION) 1672 1673SSL_CTX * 1674SSL_CTX_new(const SSL_METHOD *meth) 1675{ 1676 SSL_CTX *ret = NULL; 1677 1678 if (meth == NULL) { 1679 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); 1680 return (NULL); 1681 } 1682 1683 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { 1684 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1685 goto err; 1686 } 1687 ret = calloc(1, sizeof(SSL_CTX)); 1688 if (ret == NULL) 1689 goto err; 1690 1691 ret->method = meth; 1692 1693 ret->cert_store = NULL; 1694 ret->session_cache_mode = SSL_SESS_CACHE_SERVER; 1695 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1696 ret->session_cache_head = NULL; 1697 ret->session_cache_tail = NULL; 1698 1699 /* We take the system default */ 1700 ret->session_timeout = meth->get_timeout(); 1701 1702 ret->new_session_cb = 0; 1703 ret->remove_session_cb = 0; 1704 ret->get_session_cb = 0; 1705 ret->generate_session_id = 0; 1706 1707 memset((char *)&ret->stats, 0, sizeof(ret->stats)); 1708 1709 ret->references = 1; 1710 ret->quiet_shutdown = 0; 1711 1712/* ret->cipher=NULL; 1713 ret->master_key=NULL; 1714*/ 1715 1716 ret->info_callback = NULL; 1717 1718 ret->app_verify_callback = 0; 1719 ret->app_verify_arg = NULL; 1720 1721 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; 1722 ret->read_ahead = 0; 1723 ret->msg_callback = 0; 1724 ret->msg_callback_arg = NULL; 1725 ret->verify_mode = SSL_VERIFY_NONE; 1726#if 0 1727 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1728#endif 1729 ret->sid_ctx_length = 0; 1730 ret->default_verify_callback = NULL; 1731 if ((ret->cert = ssl_cert_new()) == NULL) 1732 goto err; 1733 1734 ret->default_passwd_callback = 0; 1735 ret->default_passwd_callback_userdata = NULL; 1736 ret->client_cert_cb = 0; 1737 ret->app_gen_cookie_cb = 0; 1738 ret->app_verify_cookie_cb = 0; 1739 1740 ret->sessions = lh_SSL_SESSION_new(); 1741 if (ret->sessions == NULL) 1742 goto err; 1743 ret->cert_store = X509_STORE_new(); 1744 if (ret->cert_store == NULL) 1745 goto err; 1746 1747 ssl_create_cipher_list(ret->method, &ret->cipher_list, 1748 &ret->cipher_list_by_id, SSL_DEFAULT_CIPHER_LIST); 1749 if (ret->cipher_list == NULL || 1750 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { 1751 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); 1752 goto err2; 1753 } 1754 1755 ret->param = X509_VERIFY_PARAM_new(); 1756 if (!ret->param) 1757 goto err; 1758 1759 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { 1760 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1761 goto err2; 1762 } 1763 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { 1764 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1765 goto err2; 1766 } 1767 1768 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) 1769 goto err; 1770 1771 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 1772 1773 ret->extra_certs = NULL; 1774 /* No compression for DTLS */ 1775 if (meth->version != DTLS1_VERSION) 1776 ret->comp_methods = SSL_COMP_get_compression_methods(); 1777 1778 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 1779 1780#ifndef OPENSSL_NO_TLSEXT 1781 ret->tlsext_servername_callback = 0; 1782 ret->tlsext_servername_arg = NULL; 1783 /* Setup RFC4507 ticket keys */ 1784 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0) 1785 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) 1786 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) 1787 ret->options |= SSL_OP_NO_TICKET; 1788 1789 ret->tlsext_status_cb = 0; 1790 ret->tlsext_status_arg = NULL; 1791 1792# ifndef OPENSSL_NO_NEXTPROTONEG 1793 ret->next_protos_advertised_cb = 0; 1794 ret->next_proto_select_cb = 0; 1795# endif 1796#endif 1797#ifndef OPENSSL_NO_PSK 1798 ret->psk_identity_hint = NULL; 1799 ret->psk_client_callback = NULL; 1800 ret->psk_server_callback = NULL; 1801#endif 1802#ifndef OPENSSL_NO_SRP 1803 SSL_CTX_SRP_CTX_init(ret); 1804#endif 1805#ifndef OPENSSL_NO_ENGINE 1806 ret->client_cert_engine = NULL; 1807#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1808#define eng_strx(x) #x 1809#define eng_str(x) eng_strx(x) 1810 /* Use specific client engine automatically... ignore errors */ 1811 { 1812 ENGINE *eng; 1813 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1814 if (!eng) { 1815 ERR_clear_error(); 1816 ENGINE_load_builtin_engines(); 1817 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1818 } 1819 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1820 ERR_clear_error(); 1821 } 1822#endif 1823#endif 1824 /* Default is to connect to non-RI servers. When RI is more widely 1825 * deployed might change this. 1826 */ 1827 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1828 1829 return (ret); 1830err: 1831 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); 1832err2: 1833 if (ret != NULL) 1834 SSL_CTX_free(ret); 1835 return (NULL); 1836} 1837 1838#if 0 1839static void 1840SSL_COMP_free(SSL_COMP *comp) 1841 { free(comp); 1842} 1843#endif 1844 1845void 1846SSL_CTX_free(SSL_CTX *a) 1847{ 1848 int i; 1849 1850 if (a == NULL) 1851 return; 1852 1853 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX); 1854 if (i > 0) 1855 return; 1856 1857 if (a->param) 1858 X509_VERIFY_PARAM_free(a->param); 1859 1860 /* 1861 * Free internal session cache. However: the remove_cb() may reference 1862 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1863 * after the sessions were flushed. 1864 * As the ex_data handling routines might also touch the session cache, 1865 * the most secure solution seems to be: empty (flush) the cache, then 1866 * free ex_data, then finally free the cache. 1867 * (See ticket [openssl.org #212].) 1868 */ 1869 if (a->sessions != NULL) 1870 SSL_CTX_flush_sessions(a, 0); 1871 1872 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); 1873 1874 if (a->sessions != NULL) 1875 lh_SSL_SESSION_free(a->sessions); 1876 1877 if (a->cert_store != NULL) 1878 X509_STORE_free(a->cert_store); 1879 if (a->cipher_list != NULL) 1880 sk_SSL_CIPHER_free(a->cipher_list); 1881 if (a->cipher_list_by_id != NULL) 1882 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1883 if (a->cert != NULL) 1884 ssl_cert_free(a->cert); 1885 if (a->client_CA != NULL) 1886 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); 1887 if (a->extra_certs != NULL) 1888 sk_X509_pop_free(a->extra_certs, X509_free); 1889#if 0 /* This should never be done, since it removes a global database */ 1890 if (a->comp_methods != NULL) 1891 sk_SSL_COMP_pop_free(a->comp_methods, SSL_COMP_free); 1892#else 1893 a->comp_methods = NULL; 1894#endif 1895 1896#ifndef OPENSSL_NO_SRTP 1897 if (a->srtp_profiles) 1898 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); 1899#endif 1900 1901#ifndef OPENSSL_NO_PSK 1902 if (a->psk_identity_hint) 1903 free(a->psk_identity_hint); 1904#endif 1905#ifndef OPENSSL_NO_SRP 1906 SSL_CTX_SRP_CTX_free(a); 1907#endif 1908#ifndef OPENSSL_NO_ENGINE 1909 if (a->client_cert_engine) 1910 ENGINE_finish(a->client_cert_engine); 1911#endif 1912 1913 free(a); 1914} 1915 1916void 1917SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1918{ 1919 ctx->default_passwd_callback = cb; 1920} 1921 1922void 1923SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) 1924{ 1925 ctx->default_passwd_callback_userdata = u; 1926} 1927 1928void 1929SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *, void *), void *arg) 1930{ 1931 ctx->app_verify_callback = cb; 1932 ctx->app_verify_arg = arg; 1933} 1934 1935void 1936SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *)) 1937{ 1938 ctx->verify_mode = mode; 1939 ctx->default_verify_callback = cb; 1940} 1941 1942void 1943SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) 1944{ 1945 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1946} 1947 1948void 1949ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) 1950{ 1951 CERT_PKEY *cpk; 1952 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign; 1953 int rsa_enc_export, dh_rsa_export, dh_dsa_export; 1954 int rsa_tmp_export, dh_tmp_export, kl; 1955 unsigned long mask_k, mask_a, emask_k, emask_a; 1956 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size; 1957#ifndef OPENSSL_NO_ECDH 1958 int have_ecdh_tmp; 1959#endif 1960 X509 *x = NULL; 1961 EVP_PKEY *ecc_pkey = NULL; 1962 int signature_nid = 0, pk_nid = 0, md_nid = 0; 1963 1964 if (c == NULL) 1965 return; 1966 1967 kl = SSL_C_EXPORT_PKEYLENGTH(cipher); 1968 1969 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1970 rsa_tmp_export = (c->rsa_tmp_cb != NULL || 1971 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1972#ifndef OPENSSL_NO_DH 1973 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1974 dh_tmp_export = (c->dh_tmp_cb != NULL || 1975 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1976#else 1977 dh_tmp = dh_tmp_export = 0; 1978#endif 1979 1980#ifndef OPENSSL_NO_ECDH 1981 have_ecdh_tmp = (c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL); 1982#endif 1983 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]); 1984 rsa_enc = (cpk->x509 != NULL && cpk->privatekey != NULL); 1985 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1986 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1987 rsa_sign = (cpk->x509 != NULL && cpk->privatekey != NULL); 1988 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1989 dsa_sign = (cpk->x509 != NULL && cpk->privatekey != NULL); 1990 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]); 1991 dh_rsa = (cpk->x509 != NULL && cpk->privatekey != NULL); 1992 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1993 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]); 1994/* FIX THIS EAY EAY EAY */ 1995 dh_dsa = (cpk->x509 != NULL && cpk->privatekey != NULL); 1996 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1997 cpk = &(c->pkeys[SSL_PKEY_ECC]); 1998 have_ecc_cert = (cpk->x509 != NULL && cpk->privatekey != NULL); 1999 mask_k = 0; 2000 mask_a = 0; 2001 emask_k = 0; 2002 emask_a = 0; 2003 2004 2005 2006#ifdef CIPHER_DEBUG 2007 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 2008 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, 2009 rsa_enc, rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa); 2010#endif 2011 2012 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 2013 if (cpk->x509 != NULL && cpk->privatekey !=NULL) { 2014 mask_k |= SSL_kGOST; 2015 mask_a |= SSL_aGOST01; 2016 } 2017 cpk = &(c->pkeys[SSL_PKEY_GOST94]); 2018 if (cpk->x509 != NULL && cpk->privatekey !=NULL) { 2019 mask_k |= SSL_kGOST; 2020 mask_a |= SSL_aGOST94; 2021 } 2022 2023 if (rsa_enc || (rsa_tmp && rsa_sign)) 2024 mask_k|=SSL_kRSA; 2025 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 2026 emask_k|=SSL_kRSA; 2027 2028#if 0 2029 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 2030 if ((dh_tmp || dh_rsa || dh_dsa) && 2031 (rsa_enc || rsa_sign || dsa_sign)) 2032 mask_k|=SSL_kEDH; 2033 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 2034 (rsa_enc || rsa_sign || dsa_sign)) 2035 emask_k|=SSL_kEDH; 2036#endif 2037 2038 if (dh_tmp_export) 2039 emask_k|=SSL_kEDH; 2040 2041 if (dh_tmp) 2042 mask_k|=SSL_kEDH; 2043 2044 if (dh_rsa) 2045 mask_k|=SSL_kDHr; 2046 if (dh_rsa_export) 2047 emask_k|=SSL_kDHr; 2048 2049 if (dh_dsa) 2050 mask_k|=SSL_kDHd; 2051 if (dh_dsa_export) 2052 emask_k|=SSL_kDHd; 2053 2054 if (rsa_enc || rsa_sign) { 2055 mask_a|=SSL_aRSA; 2056 emask_a|=SSL_aRSA; 2057 } 2058 2059 if (dsa_sign) { 2060 mask_a|=SSL_aDSS; 2061 emask_a|=SSL_aDSS; 2062 } 2063 2064 mask_a|=SSL_aNULL; 2065 emask_a|=SSL_aNULL; 2066 2067#ifndef OPENSSL_NO_KRB5 2068 mask_k|=SSL_kKRB5; 2069 mask_a|=SSL_aKRB5; 2070 emask_k|=SSL_kKRB5; 2071 emask_a|=SSL_aKRB5; 2072#endif 2073 2074 /* An ECC certificate may be usable for ECDH and/or 2075 * ECDSA cipher suites depending on the key usage extension. 2076 */ 2077 if (have_ecc_cert) { 2078 /* This call populates extension flags (ex_flags) */ 2079 x = (c->pkeys[SSL_PKEY_ECC]).x509; 2080 X509_check_purpose(x, -1, 0); 2081 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 2082 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; 2083 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 2084 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; 2085 ecc_pkey = X509_get_pubkey(x); 2086 ecc_pkey_size = (ecc_pkey != NULL) ? 2087 EVP_PKEY_bits(ecc_pkey) : 0; 2088 EVP_PKEY_free(ecc_pkey); 2089 if ((x->sig_alg) && (x->sig_alg->algorithm)) { 2090 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 2091 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid); 2092 } 2093#ifndef OPENSSL_NO_ECDH 2094 if (ecdh_ok) { 2095 2096 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) { 2097 mask_k|=SSL_kECDHr; 2098 mask_a|=SSL_aECDH; 2099 if (ecc_pkey_size <= 163) { 2100 emask_k|=SSL_kECDHr; 2101 emask_a|=SSL_aECDH; 2102 } 2103 } 2104 2105 if (pk_nid == NID_X9_62_id_ecPublicKey) { 2106 mask_k|=SSL_kECDHe; 2107 mask_a|=SSL_aECDH; 2108 if (ecc_pkey_size <= 163) { 2109 emask_k|=SSL_kECDHe; 2110 emask_a|=SSL_aECDH; 2111 } 2112 } 2113 } 2114#endif 2115#ifndef OPENSSL_NO_ECDSA 2116 if (ecdsa_ok) { 2117 mask_a|=SSL_aECDSA; 2118 emask_a|=SSL_aECDSA; 2119 } 2120#endif 2121 } 2122 2123#ifndef OPENSSL_NO_ECDH 2124 if (have_ecdh_tmp) { 2125 mask_k|=SSL_kEECDH; 2126 emask_k|=SSL_kEECDH; 2127 } 2128#endif 2129 2130#ifndef OPENSSL_NO_PSK 2131 mask_k |= SSL_kPSK; 2132 mask_a |= SSL_aPSK; 2133 emask_k |= SSL_kPSK; 2134 emask_a |= SSL_aPSK; 2135#endif 2136 2137 c->mask_k = mask_k; 2138 c->mask_a = mask_a; 2139 c->export_mask_k = emask_k; 2140 c->export_mask_a = emask_a; 2141 c->valid = 1; 2142} 2143 2144/* This handy macro borrowed from crypto/x509v3/v3_purp.c */ 2145#define ku_reject(x, usage) \ 2146 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) 2147 2148#ifndef OPENSSL_NO_EC 2149 2150int 2151ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) 2152{ 2153 unsigned long alg_k, alg_a; 2154 EVP_PKEY *pkey = NULL; 2155 int keysize = 0; 2156 int signature_nid = 0, md_nid = 0, pk_nid = 0; 2157 const SSL_CIPHER *cs = s->s3->tmp.new_cipher; 2158 2159 alg_k = cs->algorithm_mkey; 2160 alg_a = cs->algorithm_auth; 2161 2162 if (SSL_C_IS_EXPORT(cs)) { 2163 /* ECDH key length in export ciphers must be <= 163 bits */ 2164 pkey = X509_get_pubkey(x); 2165 if (pkey == NULL) 2166 return 0; 2167 keysize = EVP_PKEY_bits(pkey); 2168 EVP_PKEY_free(pkey); 2169 if (keysize > 163) 2170 return 0; 2171 } 2172 2173 /* This call populates the ex_flags field correctly */ 2174 X509_check_purpose(x, -1, 0); 2175 if ((x->sig_alg) && (x->sig_alg->algorithm)) { 2176 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 2177 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid); 2178 } 2179 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) { 2180 /* key usage, if present, must allow key agreement */ 2181 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) { 2182 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT); 2183 return 0; 2184 } 2185 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) { 2186 /* signature alg must be ECDSA */ 2187 if (pk_nid != NID_X9_62_id_ecPublicKey) { 2188 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE); 2189 return 0; 2190 } 2191 } 2192 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) { 2193 /* signature alg must be RSA */ 2194 2195 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) { 2196 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE); 2197 return 0; 2198 } 2199 } 2200 } 2201 if (alg_a & SSL_aECDSA) { 2202 /* key usage, if present, must allow signing */ 2203 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) { 2204 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2205 return 0; 2206 } 2207 } 2208 2209 return 1; 2210 /* all checks are ok */ 2211} 2212 2213#endif 2214 2215/* THIS NEEDS CLEANING UP */ 2216CERT_PKEY * 2217ssl_get_server_send_pkey(const SSL *s) 2218{ 2219 unsigned long alg_k, alg_a; 2220 CERT *c; 2221 int i; 2222 2223 c = s->cert; 2224 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 2225 2226 alg_k = s->s3->tmp.new_cipher->algorithm_mkey; 2227 alg_a = s->s3->tmp.new_cipher->algorithm_auth; 2228 2229 if (alg_k & (SSL_kECDHr|SSL_kECDHe)) { 2230 /* we don't need to look at SSL_kEECDH 2231 * since no certificate is needed for 2232 * anon ECDH and for authenticated 2233 * EECDH, the check for the auth 2234 * algorithm will set i correctly 2235 * NOTE: For ECDH-RSA, we need an ECC 2236 * not an RSA cert but for EECDH-RSA 2237 * we need an RSA cert. Placing the 2238 * checks for SSL_kECDH before RSA 2239 * checks ensures the correct cert is chosen. 2240 */ 2241 i = SSL_PKEY_ECC; 2242 } else if (alg_a & SSL_aECDSA) { 2243 i = SSL_PKEY_ECC; 2244 } else if (alg_k & SSL_kDHr) 2245 i = SSL_PKEY_DH_RSA; 2246 else if (alg_k & SSL_kDHd) 2247 i = SSL_PKEY_DH_DSA; 2248 else if (alg_a & SSL_aDSS) 2249 i = SSL_PKEY_DSA_SIGN; 2250 else if (alg_a & SSL_aRSA) { 2251 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 2252 i = SSL_PKEY_RSA_SIGN; 2253 else 2254 i = SSL_PKEY_RSA_ENC; 2255 } else if (alg_a & SSL_aKRB5) { 2256 /* VRS something else here? */ 2257 return (NULL); 2258 } else if (alg_a & SSL_aGOST94) 2259 i = SSL_PKEY_GOST94; 2260 else if (alg_a & SSL_aGOST01) 2261 i = SSL_PKEY_GOST01; 2262 else /* if (alg_a & SSL_aNULL) */ 2263 { 2264 SSLerr(SSL_F_SSL_GET_SERVER_SEND_PKEY, ERR_R_INTERNAL_ERROR); 2265 return (NULL); 2266 } 2267 2268 return c->pkeys + i; 2269} 2270 2271X509 * 2272ssl_get_server_send_cert(const SSL *s) 2273{ 2274 CERT_PKEY *cpk; 2275 cpk = ssl_get_server_send_pkey(s); 2276 if (!cpk) 2277 return NULL; 2278 return cpk->x509; 2279} 2280 2281EVP_PKEY * 2282ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd) 2283{ 2284 unsigned long alg_a; 2285 CERT *c; 2286 int idx = -1; 2287 2288 alg_a = cipher->algorithm_auth; 2289 c = s->cert; 2290 2291 if ((alg_a & SSL_aDSS) && 2292 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 2293 idx = SSL_PKEY_DSA_SIGN; 2294 else if (alg_a & SSL_aRSA) { 2295 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 2296 idx = SSL_PKEY_RSA_SIGN; 2297 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 2298 idx = SSL_PKEY_RSA_ENC; 2299 } else if ((alg_a & SSL_aECDSA) && 2300 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2301 idx = SSL_PKEY_ECC; 2302 if (idx == -1) { 2303 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR); 2304 return (NULL); 2305 } 2306 if (pmd) 2307 *pmd = c->pkeys[idx].digest; 2308 return c->pkeys[idx].privatekey; 2309} 2310 2311void 2312ssl_update_cache(SSL *s, int mode) 2313{ 2314 int i; 2315 2316 /* If the session_id_length is 0, we are not supposed to cache it, 2317 * and it would be rather hard to do anyway :-) */ 2318 if (s->session->session_id_length == 0) 2319 return; 2320 2321 i = s->session_ctx->session_cache_mode; 2322 if ((i & mode) && (!s->hit) 2323 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2324 || SSL_CTX_add_session(s->session_ctx, s->session)) 2325 && (s->session_ctx->new_session_cb != NULL)) { 2326 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); 2327 if (!s->session_ctx->new_session_cb(s, s->session)) 2328 SSL_SESSION_free(s->session); 2329 } 2330 2331 /* auto flush every 255 connections */ 2332 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2333 ((i & mode) == mode)) { 2334 if ((((mode & SSL_SESS_CACHE_CLIENT) 2335 ?s->session_ctx->stats.sess_connect_good 2336 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { 2337 SSL_CTX_flush_sessions(s->session_ctx, time(NULL)); 2338 } 2339 } 2340} 2341 2342const SSL_METHOD * 2343SSL_get_ssl_method(SSL *s) 2344{ 2345 return (s->method); 2346} 2347 2348int 2349SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) 2350{ 2351 int conn = -1; 2352 int ret = 1; 2353 2354 if (s->method != meth) { 2355 if (s->handshake_func != NULL) 2356 conn = (s->handshake_func == s->method->ssl_connect); 2357 2358 if (s->method->version == meth->version) 2359 s->method = meth; 2360 else { 2361 s->method->ssl_free(s); 2362 s->method = meth; 2363 ret = s->method->ssl_new(s); 2364 } 2365 2366 if (conn == 1) 2367 s->handshake_func = meth->ssl_connect; 2368 else if (conn == 0) 2369 s->handshake_func = meth->ssl_accept; 2370 } 2371 return (ret); 2372} 2373 2374int 2375SSL_get_error(const SSL *s, int i) 2376{ 2377 int reason; 2378 unsigned long l; 2379 BIO *bio; 2380 2381 if (i > 0) 2382 return (SSL_ERROR_NONE); 2383 2384 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2385 * etc, where we do encode the error */ 2386 if ((l = ERR_peek_error()) != 0) { 2387 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2388 return (SSL_ERROR_SYSCALL); 2389 else 2390 return (SSL_ERROR_SSL); 2391 } 2392 2393 if ((i < 0) && SSL_want_read(s)) { 2394 bio = SSL_get_rbio(s); 2395 if (BIO_should_read(bio)) 2396 return (SSL_ERROR_WANT_READ); 2397 else if (BIO_should_write(bio)) 2398 /* 2399 * This one doesn't make too much sense... We never 2400 * try to write to the rbio, and an application 2401 * program where rbio and wbio are separate couldn't 2402 * even know what it should wait for. However if we 2403 * ever set s->rwstate incorrectly (so that we have 2404 * SSL_want_read(s) instead of SSL_want_write(s)) 2405 * and rbio and wbio *are* the same, this test works 2406 * around that bug; so it might be safer to keep it. 2407 */ 2408 return (SSL_ERROR_WANT_WRITE); 2409 else if (BIO_should_io_special(bio)) { 2410 reason = BIO_get_retry_reason(bio); 2411 if (reason == BIO_RR_CONNECT) 2412 return (SSL_ERROR_WANT_CONNECT); 2413 else if (reason == BIO_RR_ACCEPT) 2414 return (SSL_ERROR_WANT_ACCEPT); 2415 else 2416 return(SSL_ERROR_SYSCALL); /* unknown */ 2417 } 2418 } 2419 2420 if ((i < 0) && SSL_want_write(s)) { 2421 bio = SSL_get_wbio(s); 2422 if (BIO_should_write(bio)) 2423 return (SSL_ERROR_WANT_WRITE); 2424 else if (BIO_should_read(bio)) 2425 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 2426 return (SSL_ERROR_WANT_READ); 2427 else if (BIO_should_io_special(bio)) { 2428 reason = BIO_get_retry_reason(bio); 2429 if (reason == BIO_RR_CONNECT) 2430 return (SSL_ERROR_WANT_CONNECT); 2431 else if (reason == BIO_RR_ACCEPT) 2432 return (SSL_ERROR_WANT_ACCEPT); 2433 else 2434 return (SSL_ERROR_SYSCALL); 2435 } 2436 } 2437 if ((i < 0) && SSL_want_x509_lookup(s)) { 2438 return (SSL_ERROR_WANT_X509_LOOKUP); 2439 } 2440 2441 if (i == 0) { 2442 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2443 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2444 return (SSL_ERROR_ZERO_RETURN); 2445 } 2446 return (SSL_ERROR_SYSCALL); 2447} 2448 2449int 2450SSL_do_handshake(SSL *s) 2451{ 2452 int ret = 1; 2453 2454 if (s->handshake_func == NULL) { 2455 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); 2456 return (-1); 2457 } 2458 2459 s->method->ssl_renegotiate_check(s); 2460 2461 if (SSL_in_init(s) || SSL_in_before(s)) { 2462 ret = s->handshake_func(s); 2463 } 2464 return (ret); 2465} 2466 2467/* For the next 2 functions, SSL_clear() sets shutdown and so 2468 * one of these calls will reset it */ 2469void 2470SSL_set_accept_state(SSL *s) 2471{ 2472 s->server = 1; 2473 s->shutdown = 0; 2474 s->state = SSL_ST_ACCEPT|SSL_ST_BEFORE; 2475 s->handshake_func = s->method->ssl_accept; 2476 /* clear the current cipher */ 2477 ssl_clear_cipher_ctx(s); 2478 ssl_clear_hash_ctx(&s->read_hash); 2479 ssl_clear_hash_ctx(&s->write_hash); 2480} 2481 2482void 2483SSL_set_connect_state(SSL *s) 2484{ 2485 s->server = 0; 2486 s->shutdown = 0; 2487 s->state = SSL_ST_CONNECT|SSL_ST_BEFORE; 2488 s->handshake_func = s->method->ssl_connect; 2489 /* clear the current cipher */ 2490 ssl_clear_cipher_ctx(s); 2491 ssl_clear_hash_ctx(&s->read_hash); 2492 ssl_clear_hash_ctx(&s->write_hash); 2493} 2494 2495int 2496ssl_undefined_function(SSL *s) 2497{ 2498 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2499 return (0); 2500} 2501 2502int 2503ssl_undefined_void_function(void) 2504{ 2505 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2506 return (0); 2507} 2508 2509int 2510ssl_undefined_const_function(const SSL *s) 2511{ 2512 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2513 return (0); 2514} 2515 2516SSL_METHOD * 2517ssl_bad_method(int ver) 2518{ 2519 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2520 return (NULL); 2521} 2522 2523const char * 2524SSL_get_version(const SSL *s) 2525{ 2526 if (s->version == TLS1_2_VERSION) 2527 return("TLSv1.2"); 2528 else if (s->version == TLS1_1_VERSION) 2529 return("TLSv1.1"); 2530 else if (s->version == TLS1_VERSION) 2531 return("TLSv1"); 2532 else if (s->version == SSL3_VERSION) 2533 return("SSLv3"); 2534 else 2535 return("unknown"); 2536} 2537 2538SSL * 2539SSL_dup(SSL *s) 2540{ 2541 STACK_OF(X509_NAME) *sk; 2542 X509_NAME *xn; 2543 SSL *ret; 2544 int i; 2545 2546 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2547 return (NULL); 2548 2549 ret->version = s->version; 2550 ret->type = s->type; 2551 ret->method = s->method; 2552 2553 if (s->session != NULL) { 2554 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 2555 SSL_copy_session_id(ret, s); 2556 } else { 2557 /* No session has been established yet, so we have to expect 2558 * that s->cert or ret->cert will be changed later -- 2559 * they should not both point to the same object, 2560 * and thus we can't use SSL_copy_session_id. */ 2561 2562 ret->method->ssl_free(ret); 2563 ret->method = s->method; 2564 ret->method->ssl_new(ret); 2565 2566 if (s->cert != NULL) { 2567 if (ret->cert != NULL) { 2568 ssl_cert_free(ret->cert); 2569 } 2570 ret->cert = ssl_cert_dup(s->cert); 2571 if (ret->cert == NULL) 2572 goto err; 2573 } 2574 2575 SSL_set_session_id_context(ret, 2576 s->sid_ctx, s->sid_ctx_length); 2577 } 2578 2579 ret->options = s->options; 2580 ret->mode = s->mode; 2581 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); 2582 SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); 2583 ret->msg_callback = s->msg_callback; 2584 ret->msg_callback_arg = s->msg_callback_arg; 2585 SSL_set_verify(ret, SSL_get_verify_mode(s), 2586 SSL_get_verify_callback(s)); 2587 SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); 2588 ret->generate_session_id = s->generate_session_id; 2589 2590 SSL_set_info_callback(ret, SSL_get_info_callback(s)); 2591 2592 ret->debug = s->debug; 2593 2594 /* copy app data, a little dangerous perhaps */ 2595 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) 2596 goto err; 2597 2598 /* setup rbio, and wbio */ 2599 if (s->rbio != NULL) { 2600 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2601 goto err; 2602 } 2603 if (s->wbio != NULL) { 2604 if (s->wbio != s->rbio) { 2605 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2606 goto err; 2607 } else 2608 ret->wbio = ret->rbio; 2609 } 2610 ret->rwstate = s->rwstate; 2611 ret->in_handshake = s->in_handshake; 2612 ret->handshake_func = s->handshake_func; 2613 ret->server = s->server; 2614 ret->renegotiate = s->renegotiate; 2615 ret->new_session = s->new_session; 2616 ret->quiet_shutdown = s->quiet_shutdown; 2617 ret->shutdown = s->shutdown; 2618 ret->state=s->state; /* SSL_dup does not really work at any state, though */ 2619 ret->rstate = s->rstate; 2620 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */ 2621 ret->hit = s->hit; 2622 2623 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2624 2625 /* dup the cipher_list and cipher_list_by_id stacks */ 2626 if (s->cipher_list != NULL) { 2627 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2628 goto err; 2629 } 2630 if (s->cipher_list_by_id != NULL) 2631 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 2632 == NULL) 2633 goto err; 2634 2635 /* Dup the client_CA list */ 2636 if (s->client_CA != NULL) { 2637 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 2638 ret->client_CA = sk; 2639 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 2640 xn = sk_X509_NAME_value(sk, i); 2641 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { 2642 X509_NAME_free(xn); 2643 goto err; 2644 } 2645 } 2646 } 2647 2648 if (0) { 2649err: 2650 if (ret != NULL) 2651 SSL_free(ret); 2652 ret = NULL; 2653 } 2654 return (ret); 2655} 2656 2657void 2658ssl_clear_cipher_ctx(SSL *s) 2659{ 2660 if (s->enc_read_ctx != NULL) { 2661 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 2662 free(s->enc_read_ctx); 2663 s->enc_read_ctx = NULL; 2664 } 2665 if (s->enc_write_ctx != NULL) { 2666 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 2667 free(s->enc_write_ctx); 2668 s->enc_write_ctx = NULL; 2669 } 2670#ifndef OPENSSL_NO_COMP 2671 if (s->expand != NULL) { 2672 COMP_CTX_free(s->expand); 2673 s->expand = NULL; 2674 } 2675 if (s->compress != NULL) { 2676 COMP_CTX_free(s->compress); 2677 s->compress = NULL; 2678 } 2679#endif 2680} 2681 2682/* Fix this function so that it takes an optional type parameter */ 2683X509 * 2684SSL_get_certificate(const SSL *s) 2685{ 2686 if (s->cert != NULL) 2687 return (s->cert->key->x509); 2688 else 2689 return (NULL); 2690} 2691 2692/* Fix this function so that it takes an optional type parameter */ 2693EVP_PKEY * 2694SSL_get_privatekey(SSL *s) 2695{ 2696 if (s->cert != NULL) 2697 return (s->cert->key->privatekey); 2698 else 2699 return (NULL); 2700} 2701 2702const SSL_CIPHER * 2703SSL_get_current_cipher(const SSL *s) 2704{ 2705 if ((s->session != NULL) && (s->session->cipher != NULL)) 2706 return (s->session->cipher); 2707 return (NULL); 2708} 2709#ifdef OPENSSL_NO_COMP 2710const void * 2711SSL_get_current_compression(SSL *s) 2712{ 2713 return NULL; 2714} 2715 2716const void * 2717SSL_get_current_expansion(SSL *s) 2718{ 2719 return NULL; 2720} 2721#else 2722 2723const COMP_METHOD * 2724SSL_get_current_compression(SSL *s) 2725{ 2726 if (s->compress != NULL) 2727 return (s->compress->meth); 2728 return (NULL); 2729} 2730 2731const COMP_METHOD * 2732SSL_get_current_expansion(SSL *s) 2733{ 2734 if (s->expand != NULL) 2735 return (s->expand->meth); 2736 return (NULL); 2737} 2738#endif 2739 2740int 2741ssl_init_wbio_buffer(SSL *s, int push) 2742{ 2743 BIO *bbio; 2744 2745 if (s->bbio == NULL) { 2746 bbio = BIO_new(BIO_f_buffer()); 2747 if (bbio == NULL) 2748 return (0); 2749 s->bbio = bbio; 2750 } else { 2751 bbio = s->bbio; 2752 if (s->bbio == s->wbio) 2753 s->wbio = BIO_pop(s->wbio); 2754 } 2755 (void)BIO_reset(bbio); 2756/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2757 if (!BIO_set_read_buffer_size(bbio, 1)) { 2758 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); 2759 return (0); 2760 } 2761 if (push) { 2762 if (s->wbio != bbio) 2763 s->wbio = BIO_push(bbio, s->wbio); 2764 } else { 2765 if (s->wbio == bbio) 2766 s->wbio = BIO_pop(bbio); 2767 } 2768 return (1); 2769} 2770 2771void 2772ssl_free_wbio_buffer(SSL *s) 2773{ 2774 if (s->bbio == NULL) 2775 return; 2776 2777 if (s->bbio == s->wbio) { 2778 /* remove buffering */ 2779 s->wbio = BIO_pop(s->wbio); 2780 } 2781 BIO_free(s->bbio); 2782 s->bbio = NULL; 2783} 2784 2785void 2786SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) 2787{ 2788 ctx->quiet_shutdown = mode; 2789} 2790 2791int 2792SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2793{ 2794 return (ctx->quiet_shutdown); 2795} 2796 2797void 2798SSL_set_quiet_shutdown(SSL *s, int mode) 2799{ 2800 s->quiet_shutdown = mode; 2801} 2802 2803int 2804SSL_get_quiet_shutdown(const SSL *s) 2805{ 2806 return (s->quiet_shutdown); 2807} 2808 2809void 2810SSL_set_shutdown(SSL *s, int mode) 2811{ 2812 s->shutdown = mode; 2813} 2814 2815int 2816SSL_get_shutdown(const SSL *s) 2817{ 2818 return (s->shutdown); 2819} 2820 2821int 2822SSL_version(const SSL *s) 2823{ 2824 return (s->version); 2825} 2826 2827SSL_CTX * 2828SSL_get_SSL_CTX(const SSL *ssl) 2829{ 2830 return (ssl->ctx); 2831} 2832 2833SSL_CTX * 2834SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2835{ 2836 if (ssl->ctx == ctx) 2837 return ssl->ctx; 2838#ifndef OPENSSL_NO_TLSEXT 2839 if (ctx == NULL) 2840 ctx = ssl->initial_ctx; 2841#endif 2842 if (ssl->cert != NULL) 2843 ssl_cert_free(ssl->cert); 2844 ssl->cert = ssl_cert_dup(ctx->cert); 2845 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); 2846 if (ssl->ctx != NULL) 2847 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2848 ssl->ctx = ctx; 2849 return (ssl->ctx); 2850} 2851 2852#ifndef OPENSSL_NO_STDIO 2853int 2854SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2855{ 2856 return (X509_STORE_set_default_paths(ctx->cert_store)); 2857} 2858 2859int 2860SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2861 const char *CApath) 2862{ 2863 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); 2864} 2865#endif 2866 2867void 2868SSL_set_info_callback(SSL *ssl, 2869 void (*cb)(const SSL *ssl, int type, int val)) 2870{ 2871 ssl->info_callback = cb; 2872} 2873 2874/* One compiler (Diab DCC) doesn't like argument names in returned 2875 function pointer. */ 2876void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/) 2877{ 2878 return ssl->info_callback; 2879} 2880 2881int 2882SSL_state(const SSL *ssl) 2883{ 2884 return (ssl->state); 2885} 2886 2887void 2888SSL_set_state(SSL *ssl, int state) 2889{ 2890 ssl->state = state; 2891} 2892 2893void 2894SSL_set_verify_result(SSL *ssl, long arg) 2895{ 2896 ssl->verify_result = arg; 2897} 2898 2899long 2900SSL_get_verify_result(const SSL *ssl) 2901{ 2902 return (ssl->verify_result); 2903} 2904 2905int 2906SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2907 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2908{ 2909 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2910 new_func, dup_func, free_func); 2911} 2912 2913int 2914SSL_set_ex_data(SSL *s, int idx, void *arg) 2915{ 2916 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 2917} 2918 2919void * 2920SSL_get_ex_data(const SSL *s, int idx) 2921{ 2922 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 2923} 2924 2925int 2926SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 2927 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 2928{ 2929 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2930 new_func, dup_func, free_func); 2931} 2932 2933int 2934SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) 2935{ 2936 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); 2937} 2938 2939void * 2940SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) 2941{ 2942 return (CRYPTO_get_ex_data(&s->ex_data, idx)); 2943} 2944 2945int 2946ssl_ok(SSL *s) 2947{ 2948 return (1); 2949} 2950 2951X509_STORE * 2952SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2953{ 2954 return (ctx->cert_store); 2955} 2956 2957void 2958SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) 2959{ 2960 if (ctx->cert_store != NULL) 2961 X509_STORE_free(ctx->cert_store); 2962 ctx->cert_store = store; 2963} 2964 2965int 2966SSL_want(const SSL *s) 2967{ 2968 return (s->rwstate); 2969} 2970 2971/*! 2972 * \brief Set the callback for generating temporary RSA keys. 2973 * \param ctx the SSL context. 2974 * \param cb the callback 2975 */ 2976 2977void 2978SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, 2979 int is_export, 2980int keylength)) 2981{ 2982 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2983} 2984 2985void 2986SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, 2987 int is_export, 2988int keylength)) 2989{ 2990 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2991} 2992 2993#ifdef DOXYGEN 2994/*! 2995 * \brief The RSA temporary key callback function. 2996 * \param ssl the SSL session. 2997 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2998 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2999 * of the required key in bits. 3000 * \return the temporary RSA key. 3001 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 3002 */ 3003 3004RSA * 3005cb(SSL *ssl, int is_export, int keylength) 3006{} 3007#endif 3008 3009/*! 3010 * \brief Set the callback for generating temporary DH keys. 3011 * \param ctx the SSL context. 3012 * \param dh the callback 3013 */ 3014 3015#ifndef OPENSSL_NO_DH 3016void 3017SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export, 3018 int keylength)) 3019{ 3020 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3021} 3022 3023void 3024SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export, 3025 int keylength)) 3026{ 3027 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 3028} 3029#endif 3030 3031#ifndef OPENSSL_NO_ECDH 3032void 3033SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 3034 int keylength)) 3035{ 3036 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 3037} 3038 3039void 3040SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export, 3041 int keylength)) 3042{ 3043 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 3044} 3045#endif 3046 3047#ifndef OPENSSL_NO_PSK 3048int 3049SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) 3050{ 3051 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { 3052 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); 3053 return 0; 3054 } 3055 if (ctx->psk_identity_hint != NULL) 3056 free(ctx->psk_identity_hint); 3057 if (identity_hint != NULL) { 3058 ctx->psk_identity_hint = BUF_strdup(identity_hint); 3059 if (ctx->psk_identity_hint == NULL) 3060 return 0; 3061 } else 3062 ctx->psk_identity_hint = NULL; 3063 return 1; 3064} 3065 3066int 3067SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) 3068{ 3069 if (s == NULL) 3070 return 0; 3071 3072 if (s->session == NULL) 3073 return 1; /* session not created yet, ignored */ 3074 3075 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { 3076 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); 3077 return 0; 3078 } 3079 if (s->session->psk_identity_hint != NULL) 3080 free(s->session->psk_identity_hint); 3081 if (identity_hint != NULL) { 3082 s->session->psk_identity_hint = BUF_strdup(identity_hint); 3083 if (s->session->psk_identity_hint == NULL) 3084 return 0; 3085 } else 3086 s->session->psk_identity_hint = NULL; 3087 return 1; 3088} 3089 3090const char * 3091SSL_get_psk_identity_hint(const SSL *s) 3092{ 3093 if (s == NULL || s->session == NULL) 3094 return NULL; 3095 return (s->session->psk_identity_hint); 3096} 3097 3098const char * 3099SSL_get_psk_identity(const SSL *s) 3100{ 3101 if (s == NULL || s->session == NULL) 3102 return NULL; 3103 return (s->session->psk_identity); 3104} 3105 3106void 3107SSL_set_psk_client_callback(SSL *s, 3108 unsigned int (*cb)(SSL *ssl, const char *hint, 3109char *identity, unsigned int max_identity_len, unsigned char *psk, 3110 unsigned int max_psk_len)) 3111{ 3112 s->psk_client_callback = cb; 3113} 3114 3115void 3116SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, 3117 unsigned int (*cb)(SSL *ssl, const char *hint, 3118char *identity, unsigned int max_identity_len, unsigned char *psk, 3119 unsigned int max_psk_len)) 3120{ 3121 ctx->psk_client_callback = cb; 3122} 3123 3124void 3125SSL_set_psk_server_callback(SSL *s, 3126 unsigned int (*cb)(SSL *ssl, const char *identity, 3127unsigned char *psk, unsigned int max_psk_len)) 3128{ 3129 s->psk_server_callback = cb; 3130} 3131 3132void 3133SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, 3134 unsigned int (*cb)(SSL *ssl, const char *identity, 3135unsigned char *psk, unsigned int max_psk_len)) 3136{ 3137 ctx->psk_server_callback = cb; 3138} 3139#endif 3140 3141void 3142SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3143{ 3144 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3145} 3146 3147void 3148SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)) 3149{ 3150 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3151} 3152 3153/* Allocates new EVP_MD_CTX and sets pointer to it into given pointer 3154 * vairable, freeing EVP_MD_CTX previously stored in that variable, if 3155 * any. If EVP_MD pointer is passed, initializes ctx with this md 3156 * Returns newly allocated ctx; 3157 */ 3158 3159EVP_MD_CTX * 3160ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) 3161{ 3162 ssl_clear_hash_ctx(hash); 3163 *hash = EVP_MD_CTX_create(); 3164 if (md) 3165 EVP_DigestInit_ex(*hash, md, NULL); 3166 return *hash; 3167} 3168 3169void 3170ssl_clear_hash_ctx(EVP_MD_CTX **hash) 3171{ 3172 3173 if (*hash) 3174 EVP_MD_CTX_destroy(*hash); 3175 *hash = NULL; 3176} 3177 3178void 3179SSL_set_debug(SSL *s, int debug) 3180{ 3181 s->debug = debug; 3182} 3183 3184int 3185SSL_cache_hit(SSL *s) 3186{ 3187 return s->hit; 3188} 3189 3190IMPLEMENT_STACK_OF(SSL_CIPHER) 3191IMPLEMENT_STACK_OF(SSL_COMP) 3192IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, 3193ssl_cipher_id); 3194