1 /*! \file ssl/ssl_lib.c 2 * \brief Version independent SSL functions. 3 */ 4 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 5 * All rights reserved. 6 * 7 * This package is an SSL implementation written 8 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 (at) 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 (at) cryptsoft.com). This product includes software written by Tim 110 * Hudson (tjh (at) 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 #ifdef REF_CHECK 146 # include <assert.h> 147 #endif 148 #include <stdio.h> 149 #include "ssl_locl.h" 150 #include "kssl_lcl.h" 151 #include <openssl/objects.h> 152 #include <openssl/lhash.h> 153 #include <openssl/x509v3.h> 154 #include <openssl/rand.h> 155 #include <openssl/ocsp.h> 156 #ifndef OPENSSL_NO_DH 157 #include <openssl/dh.h> 158 #endif 159 #ifndef OPENSSL_NO_ENGINE 160 #include <openssl/engine.h> 161 #endif 162 163 const char *SSL_version_str=OPENSSL_VERSION_TEXT; 164 165 SSL3_ENC_METHOD ssl3_undef_enc_method={ 166 /* evil casts, but these functions are only called if there's a library bug */ 167 (int (*)(SSL *,int))ssl_undefined_function, 168 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, 169 ssl_undefined_function, 170 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function, 171 (int (*)(SSL*, int))ssl_undefined_function, 172 (int (*)(SSL *, const char*, int, unsigned char *))ssl_undefined_function, 173 0, /* finish_mac_length */ 174 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function, 175 NULL, /* client_finished_label */ 176 0, /* client_finished_label_len */ 177 NULL, /* server_finished_label */ 178 0, /* server_finished_label_len */ 179 (int (*)(int))ssl_undefined_function 180 }; 181 182 int SSL_clear(SSL *s) 183 { 184 185 if (s->method == NULL) 186 { 187 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED); 188 return(0); 189 } 190 191 if (ssl_clear_bad_session(s)) 192 { 193 SSL_SESSION_free(s->session); 194 s->session=NULL; 195 } 196 197 s->error=0; 198 s->hit=0; 199 s->shutdown=0; 200 201 #if 0 /* Disabled since version 1.10 of this file (early return not 202 * needed because SSL_clear is not called when doing renegotiation) */ 203 /* This is set if we are doing dynamic renegotiation so keep 204 * the old cipher. It is sort of a SSL_clear_lite :-) */ 205 if (s->new_session) return(1); 206 #else 207 if (s->new_session) 208 { 209 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR); 210 return 0; 211 } 212 #endif 213 214 s->type=0; 215 216 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT); 217 218 s->version=s->method->version; 219 s->client_version=s->version; 220 s->rwstate=SSL_NOTHING; 221 s->rstate=SSL_ST_READ_HEADER; 222 #if 0 223 s->read_ahead=s->ctx->read_ahead; 224 #endif 225 226 if (s->init_buf != NULL) 227 { 228 BUF_MEM_free(s->init_buf); 229 s->init_buf=NULL; 230 } 231 232 ssl_clear_cipher_ctx(s); 233 ssl_clear_hash_ctx(&s->read_hash); 234 ssl_clear_hash_ctx(&s->write_hash); 235 236 s->first_packet=0; 237 238 #if 1 239 /* Check to see if we were changed into a different method, if 240 * so, revert back if we are not doing session-id reuse. */ 241 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method)) 242 { 243 s->method->ssl_free(s); 244 s->method=s->ctx->method; 245 if (!s->method->ssl_new(s)) 246 return(0); 247 } 248 else 249 #endif 250 s->method->ssl_clear(s); 251 return(1); 252 } 253 254 /** Used to change an SSL_CTXs default SSL method type */ 255 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth) 256 { 257 STACK_OF(SSL_CIPHER) *sk; 258 259 ctx->method=meth; 260 261 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list), 262 &(ctx->cipher_list_by_id), 263 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST); 264 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) 265 { 266 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 267 return(0); 268 } 269 return(1); 270 } 271 272 SSL *SSL_new(SSL_CTX *ctx) 273 { 274 SSL *s; 275 276 if (ctx == NULL) 277 { 278 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX); 279 return(NULL); 280 } 281 if (ctx->method == NULL) 282 { 283 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 284 return(NULL); 285 } 286 287 s=(SSL *)OPENSSL_malloc(sizeof(SSL)); 288 if (s == NULL) goto err; 289 memset(s,0,sizeof(SSL)); 290 291 #ifndef OPENSSL_NO_KRB5 292 s->kssl_ctx = kssl_ctx_new(); 293 #endif /* OPENSSL_NO_KRB5 */ 294 295 s->options=ctx->options; 296 s->mode=ctx->mode; 297 s->max_cert_list=ctx->max_cert_list; 298 299 if (ctx->cert != NULL) 300 { 301 /* Earlier library versions used to copy the pointer to 302 * the CERT, not its contents; only when setting new 303 * parameters for the per-SSL copy, ssl_cert_new would be 304 * called (and the direct reference to the per-SSL_CTX 305 * settings would be lost, but those still were indirectly 306 * accessed for various purposes, and for that reason they 307 * used to be known as s->ctx->default_cert). 308 * Now we don't look at the SSL_CTX's CERT after having 309 * duplicated it once. */ 310 311 s->cert = ssl_cert_dup(ctx->cert); 312 if (s->cert == NULL) 313 goto err; 314 } 315 else 316 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 317 318 s->read_ahead=ctx->read_ahead; 319 s->msg_callback=ctx->msg_callback; 320 s->msg_callback_arg=ctx->msg_callback_arg; 321 s->verify_mode=ctx->verify_mode; 322 #if 0 323 s->verify_depth=ctx->verify_depth; 324 #endif 325 s->sid_ctx_length=ctx->sid_ctx_length; 326 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 327 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx)); 328 s->verify_callback=ctx->default_verify_callback; 329 s->session_creation_enabled=1; 330 s->generate_session_id=ctx->generate_session_id; 331 332 s->param = X509_VERIFY_PARAM_new(); 333 if (!s->param) 334 goto err; 335 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 336 #if 0 337 s->purpose = ctx->purpose; 338 s->trust = ctx->trust; 339 #endif 340 s->quiet_shutdown=ctx->quiet_shutdown; 341 s->max_send_fragment = ctx->max_send_fragment; 342 343 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 344 s->ctx=ctx; 345 #ifndef OPENSSL_NO_TLSEXT 346 s->tlsext_debug_cb = 0; 347 s->tlsext_debug_arg = NULL; 348 s->tlsext_ticket_expected = 0; 349 s->tlsext_status_type = -1; 350 s->tlsext_status_expected = 0; 351 s->tlsext_ocsp_ids = NULL; 352 s->tlsext_ocsp_exts = NULL; 353 s->tlsext_ocsp_resp = NULL; 354 s->tlsext_ocsp_resplen = -1; 355 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 356 s->initial_ctx=ctx; 357 #endif 358 359 s->verify_result=X509_V_OK; 360 361 s->method=ctx->method; 362 363 if (!s->method->ssl_new(s)) 364 goto err; 365 366 s->references=1; 367 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1; 368 369 SSL_clear(s); 370 371 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 372 373 #ifndef OPENSSL_NO_PSK 374 s->psk_client_callback=ctx->psk_client_callback; 375 s->psk_server_callback=ctx->psk_server_callback; 376 #endif 377 378 return(s); 379 err: 380 if (s != NULL) 381 { 382 if (s->cert != NULL) 383 ssl_cert_free(s->cert); 384 if (s->ctx != NULL) 385 SSL_CTX_free(s->ctx); /* decrement reference count */ 386 OPENSSL_free(s); 387 } 388 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE); 389 return(NULL); 390 } 391 392 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx, 393 unsigned int sid_ctx_len) 394 { 395 if(sid_ctx_len > sizeof ctx->sid_ctx) 396 { 397 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 398 return 0; 399 } 400 ctx->sid_ctx_length=sid_ctx_len; 401 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len); 402 403 return 1; 404 } 405 406 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx, 407 unsigned int sid_ctx_len) 408 { 409 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 410 { 411 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 412 return 0; 413 } 414 ssl->sid_ctx_length=sid_ctx_len; 415 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len); 416 417 return 1; 418 } 419 420 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 421 { 422 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 423 ctx->generate_session_id = cb; 424 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 425 return 1; 426 } 427 428 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 429 { 430 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 431 ssl->generate_session_id = cb; 432 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 433 return 1; 434 } 435 436 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 437 unsigned int id_len) 438 { 439 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how 440 * we can "construct" a session to give us the desired check - ie. to 441 * find if there's a session in the hash table that would conflict with 442 * any new session built out of this id/id_len and the ssl_version in 443 * use by this SSL. */ 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 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a 453 * callback is calling us to check the uniqueness of a shorter ID, it 454 * must be compared as a padded-out ID because that is what it will be 455 * converted to when the callback has finished choosing it. */ 456 if((r.ssl_version == SSL2_VERSION) && 457 (id_len < SSL2_SSL_SESSION_ID_LENGTH)) 458 { 459 memset(r.session_id + id_len, 0, 460 SSL2_SSL_SESSION_ID_LENGTH - id_len); 461 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH; 462 } 463 464 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 465 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r); 466 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 467 return (p != NULL); 468 } 469 470 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 471 { 472 return X509_VERIFY_PARAM_set_purpose(s->param, purpose); 473 } 474 475 int SSL_set_purpose(SSL *s, int purpose) 476 { 477 return X509_VERIFY_PARAM_set_purpose(s->param, purpose); 478 } 479 480 int SSL_CTX_set_trust(SSL_CTX *s, int trust) 481 { 482 return X509_VERIFY_PARAM_set_trust(s->param, trust); 483 } 484 485 int SSL_set_trust(SSL *s, int trust) 486 { 487 return X509_VERIFY_PARAM_set_trust(s->param, trust); 488 } 489 490 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) 491 { 492 return X509_VERIFY_PARAM_set1(ctx->param, vpm); 493 } 494 495 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) 496 { 497 return X509_VERIFY_PARAM_set1(ssl->param, vpm); 498 } 499 500 void SSL_free(SSL *s) 501 { 502 int i; 503 504 if(s == NULL) 505 return; 506 507 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL); 508 #ifdef REF_PRINT 509 REF_PRINT("SSL",s); 510 #endif 511 if (i > 0) return; 512 #ifdef REF_CHECK 513 if (i < 0) 514 { 515 fprintf(stderr,"SSL_free, bad reference count\n"); 516 abort(); /* ok */ 517 } 518 #endif 519 520 if (s->param) 521 X509_VERIFY_PARAM_free(s->param); 522 523 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 524 525 if (s->bbio != NULL) 526 { 527 /* If the buffering BIO is in place, pop it off */ 528 if (s->bbio == s->wbio) 529 { 530 s->wbio=BIO_pop(s->wbio); 531 } 532 BIO_free(s->bbio); 533 s->bbio=NULL; 534 } 535 if (s->rbio != NULL) 536 BIO_free_all(s->rbio); 537 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 538 BIO_free_all(s->wbio); 539 540 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf); 541 542 /* add extra stuff */ 543 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list); 544 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id); 545 546 /* Make the next call work :-) */ 547 if (s->session != NULL) 548 { 549 ssl_clear_bad_session(s); 550 SSL_SESSION_free(s->session); 551 } 552 553 ssl_clear_cipher_ctx(s); 554 ssl_clear_hash_ctx(&s->read_hash); 555 ssl_clear_hash_ctx(&s->write_hash); 556 557 if (s->cert != NULL) ssl_cert_free(s->cert); 558 /* Free up if allocated */ 559 560 #ifndef OPENSSL_NO_TLSEXT 561 if (s->tlsext_hostname) 562 OPENSSL_free(s->tlsext_hostname); 563 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx); 564 #ifndef OPENSSL_NO_EC 565 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist); 566 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist); 567 #endif /* OPENSSL_NO_EC */ 568 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input); 569 if (s->tlsext_ocsp_exts) 570 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 571 X509_EXTENSION_free); 572 if (s->tlsext_ocsp_ids) 573 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 574 if (s->tlsext_ocsp_resp) 575 OPENSSL_free(s->tlsext_ocsp_resp); 576 #endif 577 578 if (s->client_CA != NULL) 579 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free); 580 581 if (s->method != NULL) s->method->ssl_free(s); 582 583 if (s->ctx) SSL_CTX_free(s->ctx); 584 585 #ifndef OPENSSL_NO_KRB5 586 if (s->kssl_ctx != NULL) 587 kssl_ctx_free(s->kssl_ctx); 588 #endif /* OPENSSL_NO_KRB5 */ 589 590 OPENSSL_free(s); 591 } 592 593 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio) 594 { 595 /* If the output buffering BIO is still in place, remove it 596 */ 597 if (s->bbio != NULL) 598 { 599 if (s->wbio == s->bbio) 600 { 601 s->wbio=s->wbio->next_bio; 602 s->bbio->next_bio=NULL; 603 } 604 } 605 if ((s->rbio != NULL) && (s->rbio != rbio)) 606 BIO_free_all(s->rbio); 607 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 608 BIO_free_all(s->wbio); 609 s->rbio=rbio; 610 s->wbio=wbio; 611 } 612 613 BIO *SSL_get_rbio(const SSL *s) 614 { return(s->rbio); } 615 616 BIO *SSL_get_wbio(const SSL *s) 617 { return(s->wbio); } 618 619 int SSL_get_fd(const SSL *s) 620 { 621 return(SSL_get_rfd(s)); 622 } 623 624 int SSL_get_rfd(const SSL *s) 625 { 626 int ret= -1; 627 BIO *b,*r; 628 629 b=SSL_get_rbio(s); 630 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 631 if (r != NULL) 632 BIO_get_fd(r,&ret); 633 return(ret); 634 } 635 636 int SSL_get_wfd(const SSL *s) 637 { 638 int ret= -1; 639 BIO *b,*r; 640 641 b=SSL_get_wbio(s); 642 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 643 if (r != NULL) 644 BIO_get_fd(r,&ret); 645 return(ret); 646 } 647 648 #ifndef OPENSSL_NO_SOCK 649 int SSL_set_fd(SSL *s,int fd) 650 { 651 int ret=0; 652 BIO *bio=NULL; 653 654 bio=BIO_new(BIO_s_socket()); 655 656 if (bio == NULL) 657 { 658 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 659 goto err; 660 } 661 BIO_set_fd(bio,fd,BIO_NOCLOSE); 662 SSL_set_bio(s,bio,bio); 663 ret=1; 664 err: 665 return(ret); 666 } 667 668 int SSL_set_wfd(SSL *s,int fd) 669 { 670 int ret=0; 671 BIO *bio=NULL; 672 673 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 674 || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 675 { 676 bio=BIO_new(BIO_s_socket()); 677 678 if (bio == NULL) 679 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 680 BIO_set_fd(bio,fd,BIO_NOCLOSE); 681 SSL_set_bio(s,SSL_get_rbio(s),bio); 682 } 683 else 684 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 685 ret=1; 686 err: 687 return(ret); 688 } 689 690 int SSL_set_rfd(SSL *s,int fd) 691 { 692 int ret=0; 693 BIO *bio=NULL; 694 695 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 696 || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 697 { 698 bio=BIO_new(BIO_s_socket()); 699 700 if (bio == NULL) 701 { 702 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 703 goto err; 704 } 705 BIO_set_fd(bio,fd,BIO_NOCLOSE); 706 SSL_set_bio(s,bio,SSL_get_wbio(s)); 707 } 708 else 709 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 710 ret=1; 711 err: 712 return(ret); 713 } 714 #endif 715 716 717 /* return length of latest Finished message we sent, copy to 'buf' */ 718 size_t SSL_get_finished(const SSL *s, void *buf, size_t count) 719 { 720 size_t ret = 0; 721 722 if (s->s3 != NULL) 723 { 724 ret = s->s3->tmp.finish_md_len; 725 if (count > ret) 726 count = ret; 727 memcpy(buf, s->s3->tmp.finish_md, count); 728 } 729 return ret; 730 } 731 732 /* return length of latest Finished message we expected, copy to 'buf' */ 733 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 734 { 735 size_t ret = 0; 736 737 if (s->s3 != NULL) 738 { 739 ret = s->s3->tmp.peer_finish_md_len; 740 if (count > ret) 741 count = ret; 742 memcpy(buf, s->s3->tmp.peer_finish_md, count); 743 } 744 return ret; 745 } 746 747 748 int SSL_get_verify_mode(const SSL *s) 749 { 750 return(s->verify_mode); 751 } 752 753 int SSL_get_verify_depth(const SSL *s) 754 { 755 return X509_VERIFY_PARAM_get_depth(s->param); 756 } 757 758 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *) 759 { 760 return(s->verify_callback); 761 } 762 763 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 764 { 765 return(ctx->verify_mode); 766 } 767 768 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 769 { 770 return X509_VERIFY_PARAM_get_depth(ctx->param); 771 } 772 773 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *) 774 { 775 return(ctx->default_verify_callback); 776 } 777 778 void SSL_set_verify(SSL *s,int mode, 779 int (*callback)(int ok,X509_STORE_CTX *ctx)) 780 { 781 s->verify_mode=mode; 782 if (callback != NULL) 783 s->verify_callback=callback; 784 } 785 786 void SSL_set_verify_depth(SSL *s,int depth) 787 { 788 X509_VERIFY_PARAM_set_depth(s->param, depth); 789 } 790 791 void SSL_set_read_ahead(SSL *s,int yes) 792 { 793 s->read_ahead=yes; 794 } 795 796 int SSL_get_read_ahead(const SSL *s) 797 { 798 return(s->read_ahead); 799 } 800 801 int SSL_pending(const SSL *s) 802 { 803 /* SSL_pending cannot work properly if read-ahead is enabled 804 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 805 * and it is impossible to fix since SSL_pending cannot report 806 * errors that may be observed while scanning the new data. 807 * (Note that SSL_pending() is often used as a boolean value, 808 * so we'd better not return -1.) 809 */ 810 return(s->method->ssl_pending(s)); 811 } 812 813 X509 *SSL_get_peer_certificate(const SSL *s) 814 { 815 X509 *r; 816 817 if ((s == NULL) || (s->session == NULL)) 818 r=NULL; 819 else 820 r=s->session->peer; 821 822 if (r == NULL) return(r); 823 824 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 825 826 return(r); 827 } 828 829 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) 830 { 831 STACK_OF(X509) *r; 832 833 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 834 r=NULL; 835 else 836 r=s->session->sess_cert->cert_chain; 837 838 /* If we are a client, cert_chain includes the peer's own 839 * certificate; if we are a server, it does not. */ 840 841 return(r); 842 } 843 844 /* Now in theory, since the calling process own 't' it should be safe to 845 * modify. We need to be able to read f without being hassled */ 846 void SSL_copy_session_id(SSL *t,const SSL *f) 847 { 848 CERT *tmp; 849 850 /* Do we need to to SSL locking? */ 851 SSL_set_session(t,SSL_get_session(f)); 852 853 /* what if we are setup as SSLv2 but want to talk SSLv3 or 854 * vice-versa */ 855 if (t->method != f->method) 856 { 857 t->method->ssl_free(t); /* cleanup current */ 858 t->method=f->method; /* change method */ 859 t->method->ssl_new(t); /* setup new */ 860 } 861 862 tmp=t->cert; 863 if (f->cert != NULL) 864 { 865 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 866 t->cert=f->cert; 867 } 868 else 869 t->cert=NULL; 870 if (tmp != NULL) ssl_cert_free(tmp); 871 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length); 872 } 873 874 /* Fix this so it checks all the valid key/cert options */ 875 int SSL_CTX_check_private_key(const SSL_CTX *ctx) 876 { 877 if ( (ctx == NULL) || 878 (ctx->cert == NULL) || 879 (ctx->cert->key->x509 == NULL)) 880 { 881 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 882 return(0); 883 } 884 if (ctx->cert->key->privatekey == NULL) 885 { 886 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 887 return(0); 888 } 889 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 890 } 891 892 /* Fix this function so that it takes an optional type parameter */ 893 int SSL_check_private_key(const SSL *ssl) 894 { 895 if (ssl == NULL) 896 { 897 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 898 return(0); 899 } 900 if (ssl->cert == NULL) 901 { 902 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 903 return 0; 904 } 905 if (ssl->cert->key->x509 == NULL) 906 { 907 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 908 return(0); 909 } 910 if (ssl->cert->key->privatekey == NULL) 911 { 912 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 913 return(0); 914 } 915 return(X509_check_private_key(ssl->cert->key->x509, 916 ssl->cert->key->privatekey)); 917 } 918 919 int SSL_accept(SSL *s) 920 { 921 if (s->handshake_func == 0) 922 /* Not properly initialized yet */ 923 SSL_set_accept_state(s); 924 925 return(s->method->ssl_accept(s)); 926 } 927 928 int SSL_connect(SSL *s) 929 { 930 if (s->handshake_func == 0) 931 /* Not properly initialized yet */ 932 SSL_set_connect_state(s); 933 934 return(s->method->ssl_connect(s)); 935 } 936 937 long SSL_get_default_timeout(const SSL *s) 938 { 939 return(s->method->get_timeout()); 940 } 941 942 int SSL_read(SSL *s,void *buf,int num) 943 { 944 if (s->handshake_func == 0) 945 { 946 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 947 return -1; 948 } 949 950 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 951 { 952 s->rwstate=SSL_NOTHING; 953 return(0); 954 } 955 return(s->method->ssl_read(s,buf,num)); 956 } 957 958 int SSL_peek(SSL *s,void *buf,int num) 959 { 960 if (s->handshake_func == 0) 961 { 962 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); 963 return -1; 964 } 965 966 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 967 { 968 return(0); 969 } 970 return(s->method->ssl_peek(s,buf,num)); 971 } 972 973 int SSL_write(SSL *s,const void *buf,int num) 974 { 975 if (s->handshake_func == 0) 976 { 977 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 978 return -1; 979 } 980 981 if (s->shutdown & SSL_SENT_SHUTDOWN) 982 { 983 s->rwstate=SSL_NOTHING; 984 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 985 return(-1); 986 } 987 return(s->method->ssl_write(s,buf,num)); 988 } 989 990 int SSL_shutdown(SSL *s) 991 { 992 /* Note that this function behaves differently from what one might 993 * expect. Return values are 0 for no success (yet), 994 * 1 for success; but calling it once is usually not enough, 995 * even if blocking I/O is used (see ssl3_shutdown). 996 */ 997 998 if (s->handshake_func == 0) 999 { 1000 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 1001 return -1; 1002 } 1003 1004 if ((s != NULL) && !SSL_in_init(s)) 1005 return(s->method->ssl_shutdown(s)); 1006 else 1007 return(1); 1008 } 1009 1010 int SSL_renegotiate(SSL *s) 1011 { 1012 if (s->new_session == 0) 1013 { 1014 s->new_session=1; 1015 } 1016 return(s->method->ssl_renegotiate(s)); 1017 } 1018 1019 int SSL_renegotiate_pending(SSL *s) 1020 { 1021 /* becomes true when negotiation is requested; 1022 * false again once a handshake has finished */ 1023 return (s->new_session != 0); 1024 } 1025 1026 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg) 1027 { 1028 long l; 1029 1030 switch (cmd) 1031 { 1032 case SSL_CTRL_GET_READ_AHEAD: 1033 return(s->read_ahead); 1034 case SSL_CTRL_SET_READ_AHEAD: 1035 l=s->read_ahead; 1036 s->read_ahead=larg; 1037 return(l); 1038 1039 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1040 s->msg_callback_arg = parg; 1041 return 1; 1042 1043 case SSL_CTRL_OPTIONS: 1044 return(s->options|=larg); 1045 case SSL_CTRL_CLEAR_OPTIONS: 1046 return(s->options&=~larg); 1047 case SSL_CTRL_MODE: 1048 return(s->mode|=larg); 1049 case SSL_CTRL_CLEAR_MODE: 1050 return(s->mode &=~larg); 1051 case SSL_CTRL_GET_MAX_CERT_LIST: 1052 return(s->max_cert_list); 1053 case SSL_CTRL_SET_MAX_CERT_LIST: 1054 l=s->max_cert_list; 1055 s->max_cert_list=larg; 1056 return(l); 1057 case SSL_CTRL_SET_MTU: 1058 if (SSL_version(s) == DTLS1_VERSION || 1059 SSL_version(s) == DTLS1_BAD_VER) 1060 { 1061 s->d1->mtu = larg; 1062 return larg; 1063 } 1064 return 0; 1065 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1066 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1067 return 0; 1068 s->max_send_fragment = larg; 1069 return 1; 1070 case SSL_CTRL_GET_RI_SUPPORT: 1071 if (s->s3) 1072 return s->s3->send_connection_binding; 1073 else return 0; 1074 default: 1075 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 1076 } 1077 } 1078 1079 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1080 { 1081 switch(cmd) 1082 { 1083 case SSL_CTRL_SET_MSG_CALLBACK: 1084 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1085 return 1; 1086 1087 default: 1088 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 1089 } 1090 } 1091 1092 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) 1093 { 1094 return ctx->sessions; 1095 } 1096 1097 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg) 1098 { 1099 long l; 1100 1101 switch (cmd) 1102 { 1103 case SSL_CTRL_GET_READ_AHEAD: 1104 return(ctx->read_ahead); 1105 case SSL_CTRL_SET_READ_AHEAD: 1106 l=ctx->read_ahead; 1107 ctx->read_ahead=larg; 1108 return(l); 1109 1110 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1111 ctx->msg_callback_arg = parg; 1112 return 1; 1113 1114 case SSL_CTRL_GET_MAX_CERT_LIST: 1115 return(ctx->max_cert_list); 1116 case SSL_CTRL_SET_MAX_CERT_LIST: 1117 l=ctx->max_cert_list; 1118 ctx->max_cert_list=larg; 1119 return(l); 1120 1121 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1122 l=ctx->session_cache_size; 1123 ctx->session_cache_size=larg; 1124 return(l); 1125 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1126 return(ctx->session_cache_size); 1127 case SSL_CTRL_SET_SESS_CACHE_MODE: 1128 l=ctx->session_cache_mode; 1129 ctx->session_cache_mode=larg; 1130 return(l); 1131 case SSL_CTRL_GET_SESS_CACHE_MODE: 1132 return(ctx->session_cache_mode); 1133 1134 case SSL_CTRL_SESS_NUMBER: 1135 return(lh_SSL_SESSION_num_items(ctx->sessions)); 1136 case SSL_CTRL_SESS_CONNECT: 1137 return(ctx->stats.sess_connect); 1138 case SSL_CTRL_SESS_CONNECT_GOOD: 1139 return(ctx->stats.sess_connect_good); 1140 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1141 return(ctx->stats.sess_connect_renegotiate); 1142 case SSL_CTRL_SESS_ACCEPT: 1143 return(ctx->stats.sess_accept); 1144 case SSL_CTRL_SESS_ACCEPT_GOOD: 1145 return(ctx->stats.sess_accept_good); 1146 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1147 return(ctx->stats.sess_accept_renegotiate); 1148 case SSL_CTRL_SESS_HIT: 1149 return(ctx->stats.sess_hit); 1150 case SSL_CTRL_SESS_CB_HIT: 1151 return(ctx->stats.sess_cb_hit); 1152 case SSL_CTRL_SESS_MISSES: 1153 return(ctx->stats.sess_miss); 1154 case SSL_CTRL_SESS_TIMEOUTS: 1155 return(ctx->stats.sess_timeout); 1156 case SSL_CTRL_SESS_CACHE_FULL: 1157 return(ctx->stats.sess_cache_full); 1158 case SSL_CTRL_OPTIONS: 1159 return(ctx->options|=larg); 1160 case SSL_CTRL_CLEAR_OPTIONS: 1161 return(ctx->options&=~larg); 1162 case SSL_CTRL_MODE: 1163 return(ctx->mode|=larg); 1164 case SSL_CTRL_CLEAR_MODE: 1165 return(ctx->mode&=~larg); 1166 case SSL_CTRL_SET_MAX_SEND_FRAGMENT: 1167 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) 1168 return 0; 1169 ctx->max_send_fragment = larg; 1170 return 1; 1171 default: 1172 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 1173 } 1174 } 1175 1176 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1177 { 1178 switch(cmd) 1179 { 1180 case SSL_CTRL_SET_MSG_CALLBACK: 1181 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1182 return 1; 1183 1184 default: 1185 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 1186 } 1187 } 1188 1189 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1190 { 1191 long l; 1192 1193 l=a->id-b->id; 1194 if (l == 0L) 1195 return(0); 1196 else 1197 return((l > 0)?1:-1); 1198 } 1199 1200 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1201 const SSL_CIPHER * const *bp) 1202 { 1203 long l; 1204 1205 l=(*ap)->id-(*bp)->id; 1206 if (l == 0L) 1207 return(0); 1208 else 1209 return((l > 0)?1:-1); 1210 } 1211 1212 /** return a STACK of the ciphers available for the SSL and in order of 1213 * preference */ 1214 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) 1215 { 1216 if (s != NULL) 1217 { 1218 if (s->cipher_list != NULL) 1219 { 1220 return(s->cipher_list); 1221 } 1222 else if ((s->ctx != NULL) && 1223 (s->ctx->cipher_list != NULL)) 1224 { 1225 return(s->ctx->cipher_list); 1226 } 1227 } 1228 return(NULL); 1229 } 1230 1231 /** return a STACK of the ciphers available for the SSL and in order of 1232 * algorithm id */ 1233 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 1234 { 1235 if (s != NULL) 1236 { 1237 if (s->cipher_list_by_id != NULL) 1238 { 1239 return(s->cipher_list_by_id); 1240 } 1241 else if ((s->ctx != NULL) && 1242 (s->ctx->cipher_list_by_id != NULL)) 1243 { 1244 return(s->ctx->cipher_list_by_id); 1245 } 1246 } 1247 return(NULL); 1248 } 1249 1250 /** The old interface to get the same thing as SSL_get_ciphers() */ 1251 const char *SSL_get_cipher_list(const SSL *s,int n) 1252 { 1253 SSL_CIPHER *c; 1254 STACK_OF(SSL_CIPHER) *sk; 1255 1256 if (s == NULL) return(NULL); 1257 sk=SSL_get_ciphers(s); 1258 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1259 return(NULL); 1260 c=sk_SSL_CIPHER_value(sk,n); 1261 if (c == NULL) return(NULL); 1262 return(c->name); 1263 } 1264 1265 /** specify the ciphers to be used by default by the SSL_CTX */ 1266 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1267 { 1268 STACK_OF(SSL_CIPHER) *sk; 1269 1270 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 1271 &ctx->cipher_list_by_id,str); 1272 /* ssl_create_cipher_list may return an empty stack if it 1273 * was unable to find a cipher matching the given rule string 1274 * (for example if the rule string specifies a cipher which 1275 * has been disabled). This is not an error as far as 1276 * ssl_create_cipher_list is concerned, and hence 1277 * ctx->cipher_list and ctx->cipher_list_by_id has been 1278 * updated. */ 1279 if (sk == NULL) 1280 return 0; 1281 else if (sk_SSL_CIPHER_num(sk) == 0) 1282 { 1283 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1284 return 0; 1285 } 1286 return 1; 1287 } 1288 1289 /** specify the ciphers to be used by the SSL */ 1290 int SSL_set_cipher_list(SSL *s,const char *str) 1291 { 1292 STACK_OF(SSL_CIPHER) *sk; 1293 1294 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 1295 &s->cipher_list_by_id,str); 1296 /* see comment in SSL_CTX_set_cipher_list */ 1297 if (sk == NULL) 1298 return 0; 1299 else if (sk_SSL_CIPHER_num(sk) == 0) 1300 { 1301 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1302 return 0; 1303 } 1304 return 1; 1305 } 1306 1307 /** specify the ciphers to be used by the SSL */ 1308 int SSL_set_cipher_lists(SSL *s,STACK_OF(SSL_CIPHER) *sk) 1309 { 1310 STACK_OF(SSL_CIPHER) *tmp_cipher_list; 1311 1312 if (sk == NULL) 1313 return 0; 1314 1315 /* Based on end of ssl_create_cipher_list */ 1316 tmp_cipher_list = sk_SSL_CIPHER_dup(sk); 1317 if (tmp_cipher_list == NULL) 1318 { 1319 return 0; 1320 } 1321 if (s->cipher_list != NULL) 1322 sk_SSL_CIPHER_free(s->cipher_list); 1323 s->cipher_list = sk; 1324 if (s->cipher_list_by_id != NULL) 1325 sk_SSL_CIPHER_free(s->cipher_list_by_id); 1326 s->cipher_list_by_id = tmp_cipher_list; 1327 (void)sk_SSL_CIPHER_set_cmp_func(s->cipher_list_by_id,ssl_cipher_ptr_id_cmp); 1328 1329 sk_SSL_CIPHER_sort(s->cipher_list_by_id); 1330 return 1; 1331 } 1332 1333 /* works well for SSLv2, not so good for SSLv3 */ 1334 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len) 1335 { 1336 char *p; 1337 STACK_OF(SSL_CIPHER) *sk; 1338 SSL_CIPHER *c; 1339 int i; 1340 1341 if ((s->session == NULL) || (s->session->ciphers == NULL) || 1342 (len < 2)) 1343 return(NULL); 1344 1345 p=buf; 1346 sk=s->session->ciphers; 1347 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1348 { 1349 int n; 1350 1351 c=sk_SSL_CIPHER_value(sk,i); 1352 n=strlen(c->name); 1353 if (n+1 > len) 1354 { 1355 if (p != buf) 1356 --p; 1357 *p='\0'; 1358 return buf; 1359 } 1360 strcpy(p,c->name); 1361 p+=n; 1362 *(p++)=':'; 1363 len-=n+1; 1364 } 1365 p[-1]='\0'; 1366 return(buf); 1367 } 1368 1369 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p, 1370 int (*put_cb)(const SSL_CIPHER *, unsigned char *)) 1371 { 1372 int i,j=0; 1373 SSL_CIPHER *c; 1374 unsigned char *q; 1375 #ifndef OPENSSL_NO_KRB5 1376 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx); 1377 #endif /* OPENSSL_NO_KRB5 */ 1378 1379 if (sk == NULL) return(0); 1380 q=p; 1381 1382 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1383 { 1384 c=sk_SSL_CIPHER_value(sk,i); 1385 #ifndef OPENSSL_NO_KRB5 1386 if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) && 1387 nokrb5) 1388 continue; 1389 #endif /* OPENSSL_NO_KRB5 */ 1390 #ifndef OPENSSL_NO_PSK 1391 /* with PSK there must be client callback set */ 1392 if (((c->algorithm_mkey & SSL_kPSK) || (c->algorithm_auth & SSL_aPSK)) && 1393 s->psk_client_callback == NULL) 1394 continue; 1395 #endif /* OPENSSL_NO_PSK */ 1396 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p); 1397 p+=j; 1398 } 1399 /* If p == q, no ciphers and caller indicates an error. Otherwise 1400 * add SCSV if not renegotiating. 1401 */ 1402 if (p != q && !s->new_session) 1403 { 1404 static SSL_CIPHER scsv = 1405 { 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 1418 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1419 STACK_OF(SSL_CIPHER) **skp) 1420 { 1421 const SSL_CIPHER *c; 1422 STACK_OF(SSL_CIPHER) *sk; 1423 int i,n; 1424 if (s->s3) 1425 s->s3->send_connection_binding = 0; 1426 1427 n=ssl_put_cipher_by_char(s,NULL,NULL); 1428 if ((num%n) != 0) 1429 { 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 { 1437 sk= *skp; 1438 sk_SSL_CIPHER_zero(sk); 1439 } 1440 1441 for (i=0; i<num; i+=n) 1442 { 1443 /* Check for SCSV */ 1444 if (s->s3 && (n != 3 || !p[0]) && 1445 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) && 1446 (p[n-1] == (SSL3_CK_SCSV & 0xff))) 1447 { 1448 /* SCSV fatal if renegotiating */ 1449 if (s->new_session) 1450 { 1451 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING); 1452 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); 1453 goto err; 1454 } 1455 s->s3->send_connection_binding = 1; 1456 p += n; 1457 #ifdef OPENSSL_RI_DEBUG 1458 fprintf(stderr, "SCSV received by server\n"); 1459 #endif 1460 continue; 1461 } 1462 1463 c=ssl_get_cipher_by_char(s,p); 1464 p+=n; 1465 if (c != NULL) 1466 { 1467 if (!sk_SSL_CIPHER_push(sk,c)) 1468 { 1469 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1470 goto err; 1471 } 1472 } 1473 } 1474 1475 if (skp != NULL) 1476 *skp=sk; 1477 return(sk); 1478 err: 1479 if ((skp == NULL) || (*skp == NULL)) 1480 sk_SSL_CIPHER_free(sk); 1481 return(NULL); 1482 } 1483 1484 1485 #ifndef OPENSSL_NO_TLSEXT 1486 /** return a servername extension value if provided in Client Hello, or NULL. 1487 * So far, only host_name types are defined (RFC 3546). 1488 */ 1489 1490 const char *SSL_get_servername(const SSL *s, const int type) 1491 { 1492 if (type != TLSEXT_NAMETYPE_host_name) 1493 return NULL; 1494 1495 return s->session && !s->tlsext_hostname ? 1496 s->session->tlsext_hostname : 1497 s->tlsext_hostname; 1498 } 1499 1500 int SSL_get_servername_type(const SSL *s) 1501 { 1502 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname)) 1503 return TLSEXT_NAMETYPE_host_name; 1504 return -1; 1505 } 1506 #endif 1507 1508 static unsigned long ssl_session_hash(const SSL_SESSION *a) 1509 { 1510 unsigned long l; 1511 1512 l=(unsigned long) 1513 ((unsigned int) a->session_id[0] )| 1514 ((unsigned int) a->session_id[1]<< 8L)| 1515 ((unsigned long)a->session_id[2]<<16L)| 1516 ((unsigned long)a->session_id[3]<<24L); 1517 return(l); 1518 } 1519 1520 /* NB: If this function (or indeed the hash function which uses a sort of 1521 * coarser function than this one) is changed, ensure 1522 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1523 * able to construct an SSL_SESSION that will collide with any existing session 1524 * with a matching session ID. */ 1525 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b) 1526 { 1527 if (a->ssl_version != b->ssl_version) 1528 return(1); 1529 if (a->session_id_length != b->session_id_length) 1530 return(1); 1531 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1532 } 1533 1534 /* These wrapper functions should remain rather than redeclaring 1535 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1536 * variable. The reason is that the functions aren't static, they're exposed via 1537 * ssl.h. */ 1538 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION) 1539 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION) 1540 1541 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) 1542 { 1543 SSL_CTX *ret=NULL; 1544 1545 if (meth == NULL) 1546 { 1547 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1548 return(NULL); 1549 } 1550 1551 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1552 { 1553 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1554 goto err; 1555 } 1556 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); 1557 if (ret == NULL) 1558 goto err; 1559 1560 memset(ret,0,sizeof(SSL_CTX)); 1561 1562 ret->method=meth; 1563 1564 ret->cert_store=NULL; 1565 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1566 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1567 ret->session_cache_head=NULL; 1568 ret->session_cache_tail=NULL; 1569 1570 /* We take the system default */ 1571 ret->session_timeout=meth->get_timeout(); 1572 1573 ret->new_session_cb=0; 1574 ret->remove_session_cb=0; 1575 ret->get_session_cb=0; 1576 ret->generate_session_id=0; 1577 1578 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1579 1580 ret->references=1; 1581 ret->quiet_shutdown=0; 1582 1583 /* ret->cipher=NULL;*/ 1584 /* ret->s2->challenge=NULL; 1585 ret->master_key=NULL; 1586 ret->key_arg=NULL; 1587 ret->s2->conn_id=NULL; */ 1588 1589 ret->info_callback=NULL; 1590 1591 ret->app_verify_callback=0; 1592 ret->app_verify_arg=NULL; 1593 1594 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT; 1595 ret->read_ahead=0; 1596 ret->msg_callback=0; 1597 ret->msg_callback_arg=NULL; 1598 ret->verify_mode=SSL_VERIFY_NONE; 1599 #if 0 1600 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1601 #endif 1602 ret->sid_ctx_length=0; 1603 ret->default_verify_callback=NULL; 1604 if ((ret->cert=ssl_cert_new()) == NULL) 1605 goto err; 1606 1607 ret->default_passwd_callback=0; 1608 ret->default_passwd_callback_userdata=NULL; 1609 ret->client_cert_cb=0; 1610 ret->app_gen_cookie_cb=0; 1611 ret->app_verify_cookie_cb=0; 1612 1613 ret->sessions=lh_SSL_SESSION_new(); 1614 if (ret->sessions == NULL) goto err; 1615 ret->cert_store=X509_STORE_new(); 1616 if (ret->cert_store == NULL) goto err; 1617 1618 ssl_create_cipher_list(ret->method, 1619 &ret->cipher_list,&ret->cipher_list_by_id, 1620 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST); 1621 if (ret->cipher_list == NULL 1622 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1623 { 1624 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1625 goto err2; 1626 } 1627 1628 ret->param = X509_VERIFY_PARAM_new(); 1629 if (!ret->param) 1630 goto err; 1631 1632 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1633 { 1634 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1635 goto err2; 1636 } 1637 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1638 { 1639 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1640 goto err2; 1641 } 1642 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1643 { 1644 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1645 goto err2; 1646 } 1647 1648 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1649 goto err; 1650 1651 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 1652 1653 ret->extra_certs=NULL; 1654 ret->comp_methods=SSL_COMP_get_compression_methods(); 1655 1656 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; 1657 1658 #ifndef OPENSSL_NO_TLSEXT 1659 ret->tlsext_servername_callback = 0; 1660 ret->tlsext_servername_arg = NULL; 1661 /* Setup RFC4507 ticket keys */ 1662 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0) 1663 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) 1664 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) 1665 ret->options |= SSL_OP_NO_TICKET; 1666 1667 ret->tlsext_status_cb = 0; 1668 ret->tlsext_status_arg = NULL; 1669 1670 #endif 1671 #ifndef OPENSSL_NO_PSK 1672 ret->psk_identity_hint=NULL; 1673 ret->psk_client_callback=NULL; 1674 ret->psk_server_callback=NULL; 1675 #endif 1676 #ifndef OPENSSL_NO_BUF_FREELISTS 1677 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT; 1678 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST)); 1679 if (!ret->rbuf_freelist) 1680 goto err; 1681 ret->rbuf_freelist->chunklen = 0; 1682 ret->rbuf_freelist->len = 0; 1683 ret->rbuf_freelist->head = NULL; 1684 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST)); 1685 if (!ret->wbuf_freelist) 1686 { 1687 OPENSSL_free(ret->rbuf_freelist); 1688 goto err; 1689 } 1690 ret->wbuf_freelist->chunklen = 0; 1691 ret->wbuf_freelist->len = 0; 1692 ret->wbuf_freelist->head = NULL; 1693 #endif 1694 #ifndef OPENSSL_NO_ENGINE 1695 ret->client_cert_engine = NULL; 1696 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1697 #define eng_strx(x) #x 1698 #define eng_str(x) eng_strx(x) 1699 /* Use specific client engine automatically... ignore errors */ 1700 { 1701 ENGINE *eng; 1702 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1703 if (!eng) 1704 { 1705 ERR_clear_error(); 1706 ENGINE_load_builtin_engines(); 1707 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1708 } 1709 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1710 ERR_clear_error(); 1711 } 1712 #endif 1713 #endif 1714 /* Default is to connect to non-RI servers. When RI is more widely 1715 * deployed might change this. 1716 */ 1717 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1718 1719 return(ret); 1720 err: 1721 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1722 err2: 1723 if (ret != NULL) SSL_CTX_free(ret); 1724 return(NULL); 1725 } 1726 1727 #if 0 1728 static void SSL_COMP_free(SSL_COMP *comp) 1729 { OPENSSL_free(comp); } 1730 #endif 1731 1732 #ifndef OPENSSL_NO_BUF_FREELISTS 1733 static void 1734 ssl_buf_freelist_free(SSL3_BUF_FREELIST *list) 1735 { 1736 SSL3_BUF_FREELIST_ENTRY *ent, *next; 1737 for (ent = list->head; ent; ent = next) 1738 { 1739 next = ent->next; 1740 OPENSSL_free(ent); 1741 } 1742 OPENSSL_free(list); 1743 } 1744 #endif 1745 1746 void SSL_CTX_free(SSL_CTX *a) 1747 { 1748 int i; 1749 1750 if (a == NULL) return; 1751 1752 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1753 #ifdef REF_PRINT 1754 REF_PRINT("SSL_CTX",a); 1755 #endif 1756 if (i > 0) return; 1757 #ifdef REF_CHECK 1758 if (i < 0) 1759 { 1760 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1761 abort(); /* ok */ 1762 } 1763 #endif 1764 1765 if (a->param) 1766 X509_VERIFY_PARAM_free(a->param); 1767 1768 /* 1769 * Free internal session cache. However: the remove_cb() may reference 1770 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1771 * after the sessions were flushed. 1772 * As the ex_data handling routines might also touch the session cache, 1773 * the most secure solution seems to be: empty (flush) the cache, then 1774 * free ex_data, then finally free the cache. 1775 * (See ticket [openssl.org #212].) 1776 */ 1777 if (a->sessions != NULL) 1778 SSL_CTX_flush_sessions(a,0); 1779 1780 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); 1781 1782 if (a->sessions != NULL) 1783 lh_SSL_SESSION_free(a->sessions); 1784 1785 if (a->cert_store != NULL) 1786 X509_STORE_free(a->cert_store); 1787 if (a->cipher_list != NULL) 1788 sk_SSL_CIPHER_free(a->cipher_list); 1789 if (a->cipher_list_by_id != NULL) 1790 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1791 if (a->cert != NULL) 1792 ssl_cert_free(a->cert); 1793 if (a->client_CA != NULL) 1794 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1795 if (a->extra_certs != NULL) 1796 sk_X509_pop_free(a->extra_certs,X509_free); 1797 #if 0 /* This should never be done, since it removes a global database */ 1798 if (a->comp_methods != NULL) 1799 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1800 #else 1801 a->comp_methods = NULL; 1802 #endif 1803 1804 #ifndef OPENSSL_NO_PSK 1805 if (a->psk_identity_hint) 1806 OPENSSL_free(a->psk_identity_hint); 1807 #endif 1808 #ifndef OPENSSL_NO_ENGINE 1809 if (a->client_cert_engine) 1810 ENGINE_finish(a->client_cert_engine); 1811 #endif 1812 1813 #ifndef OPENSSL_NO_BUF_FREELISTS 1814 if (a->wbuf_freelist) 1815 ssl_buf_freelist_free(a->wbuf_freelist); 1816 if (a->rbuf_freelist) 1817 ssl_buf_freelist_free(a->rbuf_freelist); 1818 #endif 1819 1820 OPENSSL_free(a); 1821 } 1822 1823 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1824 { 1825 ctx->default_passwd_callback=cb; 1826 } 1827 1828 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1829 { 1830 ctx->default_passwd_callback_userdata=u; 1831 } 1832 1833 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg) 1834 { 1835 ctx->app_verify_callback=cb; 1836 ctx->app_verify_arg=arg; 1837 } 1838 1839 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1840 { 1841 ctx->verify_mode=mode; 1842 ctx->default_verify_callback=cb; 1843 } 1844 1845 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1846 { 1847 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1848 } 1849 1850 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) 1851 { 1852 CERT_PKEY *cpk; 1853 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1854 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1855 int rsa_tmp_export,dh_tmp_export,kl; 1856 unsigned long mask_k,mask_a,emask_k,emask_a; 1857 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size; 1858 #ifndef OPENSSL_NO_ECDH 1859 int have_ecdh_tmp; 1860 #endif 1861 X509 *x = NULL; 1862 EVP_PKEY *ecc_pkey = NULL; 1863 int signature_nid = 0; 1864 1865 if (c == NULL) return; 1866 1867 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1868 1869 #ifndef OPENSSL_NO_RSA 1870 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1871 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1872 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1873 #else 1874 rsa_tmp=rsa_tmp_export=0; 1875 #endif 1876 #ifndef OPENSSL_NO_DH 1877 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1878 dh_tmp_export=(c->dh_tmp_cb != NULL || 1879 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1880 #else 1881 dh_tmp=dh_tmp_export=0; 1882 #endif 1883 1884 #ifndef OPENSSL_NO_ECDH 1885 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL); 1886 #endif 1887 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1888 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1889 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1890 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1891 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1892 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1893 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1894 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1895 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1896 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1897 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1898 /* FIX THIS EAY EAY EAY */ 1899 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1900 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1901 cpk= &(c->pkeys[SSL_PKEY_ECC]); 1902 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL); 1903 mask_k=0; 1904 mask_a=0; 1905 emask_k=0; 1906 emask_a=0; 1907 1908 1909 1910 #ifdef CIPHER_DEBUG 1911 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1912 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp, 1913 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1914 #endif 1915 1916 cpk = &(c->pkeys[SSL_PKEY_GOST01]); 1917 if (cpk->x509 != NULL && cpk->privatekey !=NULL) { 1918 mask_k |= SSL_kGOST; 1919 mask_a |= SSL_aGOST01; 1920 } 1921 cpk = &(c->pkeys[SSL_PKEY_GOST94]); 1922 if (cpk->x509 != NULL && cpk->privatekey !=NULL) { 1923 mask_k |= SSL_kGOST; 1924 mask_a |= SSL_aGOST94; 1925 } 1926 1927 if (rsa_enc || (rsa_tmp && rsa_sign)) 1928 mask_k|=SSL_kRSA; 1929 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1930 emask_k|=SSL_kRSA; 1931 1932 #if 0 1933 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1934 if ( (dh_tmp || dh_rsa || dh_dsa) && 1935 (rsa_enc || rsa_sign || dsa_sign)) 1936 mask_k|=SSL_kEDH; 1937 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1938 (rsa_enc || rsa_sign || dsa_sign)) 1939 emask_k|=SSL_kEDH; 1940 #endif 1941 1942 if (dh_tmp_export) 1943 emask_k|=SSL_kEDH; 1944 1945 if (dh_tmp) 1946 mask_k|=SSL_kEDH; 1947 1948 if (dh_rsa) mask_k|=SSL_kDHr; 1949 if (dh_rsa_export) emask_k|=SSL_kDHr; 1950 1951 if (dh_dsa) mask_k|=SSL_kDHd; 1952 if (dh_dsa_export) emask_k|=SSL_kDHd; 1953 1954 if (rsa_enc || rsa_sign) 1955 { 1956 mask_a|=SSL_aRSA; 1957 emask_a|=SSL_aRSA; 1958 } 1959 1960 if (dsa_sign) 1961 { 1962 mask_a|=SSL_aDSS; 1963 emask_a|=SSL_aDSS; 1964 } 1965 1966 mask_a|=SSL_aNULL; 1967 emask_a|=SSL_aNULL; 1968 1969 #ifndef OPENSSL_NO_KRB5 1970 mask_k|=SSL_kKRB5; 1971 mask_a|=SSL_aKRB5; 1972 emask_k|=SSL_kKRB5; 1973 emask_a|=SSL_aKRB5; 1974 #endif 1975 1976 /* An ECC certificate may be usable for ECDH and/or 1977 * ECDSA cipher suites depending on the key usage extension. 1978 */ 1979 if (have_ecc_cert) 1980 { 1981 /* This call populates extension flags (ex_flags) */ 1982 x = (c->pkeys[SSL_PKEY_ECC]).x509; 1983 X509_check_purpose(x, -1, 0); 1984 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1985 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; 1986 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1987 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; 1988 ecc_pkey = X509_get_pubkey(x); 1989 ecc_pkey_size = (ecc_pkey != NULL) ? 1990 EVP_PKEY_bits(ecc_pkey) : 0; 1991 EVP_PKEY_free(ecc_pkey); 1992 if ((x->sig_alg) && (x->sig_alg->algorithm)) 1993 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 1994 #ifndef OPENSSL_NO_ECDH 1995 if (ecdh_ok) 1996 { 1997 const char *sig = OBJ_nid2ln(signature_nid); 1998 if (sig == NULL) 1999 { 2000 ERR_clear_error(); 2001 sig = "unknown"; 2002 } 2003 2004 if (strstr(sig, "WithRSA")) 2005 { 2006 mask_k|=SSL_kECDHr; 2007 mask_a|=SSL_aECDH; 2008 if (ecc_pkey_size <= 163) 2009 { 2010 emask_k|=SSL_kECDHr; 2011 emask_a|=SSL_aECDH; 2012 } 2013 } 2014 2015 if (signature_nid == NID_ecdsa_with_SHA1) 2016 { 2017 mask_k|=SSL_kECDHe; 2018 mask_a|=SSL_aECDH; 2019 if (ecc_pkey_size <= 163) 2020 { 2021 emask_k|=SSL_kECDHe; 2022 emask_a|=SSL_aECDH; 2023 } 2024 } 2025 } 2026 #endif 2027 #ifndef OPENSSL_NO_ECDSA 2028 if (ecdsa_ok) 2029 { 2030 mask_a|=SSL_aECDSA; 2031 emask_a|=SSL_aECDSA; 2032 } 2033 #endif 2034 } 2035 2036 #ifndef OPENSSL_NO_ECDH 2037 if (have_ecdh_tmp) 2038 { 2039 mask_k|=SSL_kEECDH; 2040 emask_k|=SSL_kEECDH; 2041 } 2042 #endif 2043 2044 #ifndef OPENSSL_NO_PSK 2045 mask_k |= SSL_kPSK; 2046 mask_a |= SSL_aPSK; 2047 emask_k |= SSL_kPSK; 2048 emask_a |= SSL_aPSK; 2049 #endif 2050 2051 c->mask_k=mask_k; 2052 c->mask_a=mask_a; 2053 c->export_mask_k=emask_k; 2054 c->export_mask_a=emask_a; 2055 c->valid=1; 2056 } 2057 2058 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */ 2059 #define ku_reject(x, usage) \ 2060 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) 2061 2062 #ifndef OPENSSL_NO_EC 2063 2064 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, const SSL_CIPHER *cs) 2065 { 2066 unsigned long alg_k, alg_a; 2067 EVP_PKEY *pkey = NULL; 2068 int keysize = 0; 2069 int signature_nid = 0; 2070 2071 alg_k = cs->algorithm_mkey; 2072 alg_a = cs->algorithm_auth; 2073 2074 if (SSL_C_IS_EXPORT(cs)) 2075 { 2076 /* ECDH key length in export ciphers must be <= 163 bits */ 2077 pkey = X509_get_pubkey(x); 2078 if (pkey == NULL) return 0; 2079 keysize = EVP_PKEY_bits(pkey); 2080 EVP_PKEY_free(pkey); 2081 if (keysize > 163) return 0; 2082 } 2083 2084 /* This call populates the ex_flags field correctly */ 2085 X509_check_purpose(x, -1, 0); 2086 if ((x->sig_alg) && (x->sig_alg->algorithm)) 2087 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 2088 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) 2089 { 2090 /* key usage, if present, must allow key agreement */ 2091 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) 2092 { 2093 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT); 2094 return 0; 2095 } 2096 if (alg_k & SSL_kECDHe) 2097 { 2098 /* signature alg must be ECDSA */ 2099 if (signature_nid != NID_ecdsa_with_SHA1) 2100 { 2101 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE); 2102 return 0; 2103 } 2104 } 2105 if (alg_k & SSL_kECDHr) 2106 { 2107 /* signature alg must be RSA */ 2108 2109 const char *sig = OBJ_nid2ln(signature_nid); 2110 if (sig == NULL) 2111 { 2112 ERR_clear_error(); 2113 sig = "unknown"; 2114 } 2115 if (strstr(sig, "WithRSA") == NULL) 2116 { 2117 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE); 2118 return 0; 2119 } 2120 } 2121 } 2122 if (alg_a & SSL_aECDSA) 2123 { 2124 /* key usage, if present, must allow signing */ 2125 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) 2126 { 2127 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING); 2128 return 0; 2129 } 2130 } 2131 2132 return 1; /* all checks are ok */ 2133 } 2134 2135 #endif 2136 2137 /* THIS NEEDS CLEANING UP */ 2138 X509 *ssl_get_server_send_cert(SSL *s) 2139 { 2140 unsigned long alg_k,alg_a,mask_k,mask_a; 2141 CERT *c; 2142 int i,is_export; 2143 2144 c=s->cert; 2145 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 2146 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 2147 if (is_export) 2148 { 2149 mask_k = c->export_mask_k; 2150 mask_a = c->export_mask_a; 2151 } 2152 else 2153 { 2154 mask_k = c->mask_k; 2155 mask_a = c->mask_a; 2156 } 2157 2158 alg_k = s->s3->tmp.new_cipher->algorithm_mkey; 2159 alg_a = s->s3->tmp.new_cipher->algorithm_auth; 2160 2161 if (alg_k & (SSL_kECDHr|SSL_kECDHe)) 2162 { 2163 /* we don't need to look at SSL_kEECDH 2164 * since no certificate is needed for 2165 * anon ECDH and for authenticated 2166 * EECDH, the check for the auth 2167 * algorithm will set i correctly 2168 * NOTE: For ECDH-RSA, we need an ECC 2169 * not an RSA cert but for EECDH-RSA 2170 * we need an RSA cert. Placing the 2171 * checks for SSL_kECDH before RSA 2172 * checks ensures the correct cert is chosen. 2173 */ 2174 i=SSL_PKEY_ECC; 2175 } 2176 else if (alg_a & SSL_aECDSA) 2177 { 2178 i=SSL_PKEY_ECC; 2179 } 2180 else if (alg_k & SSL_kDHr) 2181 i=SSL_PKEY_DH_RSA; 2182 else if (alg_k & SSL_kDHd) 2183 i=SSL_PKEY_DH_DSA; 2184 else if (alg_a & SSL_aDSS) 2185 i=SSL_PKEY_DSA_SIGN; 2186 else if (alg_a & SSL_aRSA) 2187 { 2188 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 2189 i=SSL_PKEY_RSA_SIGN; 2190 else 2191 i=SSL_PKEY_RSA_ENC; 2192 } 2193 else if (alg_a & SSL_aKRB5) 2194 { 2195 /* VRS something else here? */ 2196 return(NULL); 2197 } 2198 else if (alg_a & SSL_aGOST94) 2199 i=SSL_PKEY_GOST94; 2200 else if (alg_a & SSL_aGOST01) 2201 i=SSL_PKEY_GOST01; 2202 else /* if (alg_a & SSL_aNULL) */ 2203 { 2204 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR); 2205 return(NULL); 2206 } 2207 if (c->pkeys[i].x509 == NULL) return(NULL); 2208 2209 return(c->pkeys[i].x509); 2210 } 2211 2212 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher) 2213 { 2214 unsigned long alg_a; 2215 CERT *c; 2216 2217 alg_a = cipher->algorithm_auth; 2218 c=s->cert; 2219 2220 if ((alg_a & SSL_aDSS) && 2221 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 2222 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 2223 else if (alg_a & SSL_aRSA) 2224 { 2225 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 2226 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 2227 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 2228 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 2229 else 2230 return(NULL); 2231 } 2232 else if ((alg_a & SSL_aECDSA) && 2233 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2234 return(c->pkeys[SSL_PKEY_ECC].privatekey); 2235 else /* if (alg_a & SSL_aNULL) */ 2236 { 2237 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR); 2238 return(NULL); 2239 } 2240 } 2241 2242 void ssl_update_cache(SSL *s,int mode) 2243 { 2244 int i; 2245 2246 /* If the session_id_length is 0, we are not supposed to cache it, 2247 * and it would be rather hard to do anyway :-) */ 2248 if (s->session->session_id_length == 0) return; 2249 2250 i=s->session_ctx->session_cache_mode; 2251 if ((i & mode) && (!s->hit) 2252 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2253 || SSL_CTX_add_session(s->session_ctx,s->session)) 2254 && (s->session_ctx->new_session_cb != NULL)) 2255 { 2256 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 2257 if (!s->session_ctx->new_session_cb(s,s->session)) 2258 SSL_SESSION_free(s->session); 2259 } 2260 2261 /* auto flush every 255 connections */ 2262 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2263 ((i & mode) == mode)) 2264 { 2265 if ( (((mode & SSL_SESS_CACHE_CLIENT) 2266 ?s->session_ctx->stats.sess_connect_good 2267 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) 2268 { 2269 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL)); 2270 } 2271 } 2272 } 2273 2274 const SSL_METHOD *SSL_get_ssl_method(SSL *s) 2275 { 2276 return(s->method); 2277 } 2278 2279 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) 2280 { 2281 int conn= -1; 2282 int ret=1; 2283 2284 if (s->method != meth) 2285 { 2286 if (s->handshake_func != NULL) 2287 conn=(s->handshake_func == s->method->ssl_connect); 2288 2289 if (s->method->version == meth->version) 2290 s->method=meth; 2291 else 2292 { 2293 s->method->ssl_free(s); 2294 s->method=meth; 2295 ret=s->method->ssl_new(s); 2296 } 2297 2298 if (conn == 1) 2299 s->handshake_func=meth->ssl_connect; 2300 else if (conn == 0) 2301 s->handshake_func=meth->ssl_accept; 2302 } 2303 return(ret); 2304 } 2305 2306 int SSL_get_error(const SSL *s,int i) 2307 { 2308 int reason; 2309 unsigned long l; 2310 BIO *bio; 2311 2312 if (i > 0) return(SSL_ERROR_NONE); 2313 2314 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2315 * etc, where we do encode the error */ 2316 if ((l=ERR_peek_error()) != 0) 2317 { 2318 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2319 return(SSL_ERROR_SYSCALL); 2320 else 2321 return(SSL_ERROR_SSL); 2322 } 2323 2324 if ((i < 0) && SSL_want_read(s)) 2325 { 2326 bio=SSL_get_rbio(s); 2327 if (BIO_should_read(bio)) 2328 return(SSL_ERROR_WANT_READ); 2329 else if (BIO_should_write(bio)) 2330 /* This one doesn't make too much sense ... We never try 2331 * to write to the rbio, and an application program where 2332 * rbio and wbio are separate couldn't even know what it 2333 * should wait for. 2334 * However if we ever set s->rwstate incorrectly 2335 * (so that we have SSL_want_read(s) instead of 2336 * SSL_want_write(s)) and rbio and wbio *are* the same, 2337 * this test works around that bug; so it might be safer 2338 * to keep it. */ 2339 return(SSL_ERROR_WANT_WRITE); 2340 else if (BIO_should_io_special(bio)) 2341 { 2342 reason=BIO_get_retry_reason(bio); 2343 if (reason == BIO_RR_CONNECT) 2344 return(SSL_ERROR_WANT_CONNECT); 2345 else if (reason == BIO_RR_ACCEPT) 2346 return(SSL_ERROR_WANT_ACCEPT); 2347 else 2348 return(SSL_ERROR_SYSCALL); /* unknown */ 2349 } 2350 } 2351 2352 if ((i < 0) && SSL_want_write(s)) 2353 { 2354 bio=SSL_get_wbio(s); 2355 if (BIO_should_write(bio)) 2356 return(SSL_ERROR_WANT_WRITE); 2357 else if (BIO_should_read(bio)) 2358 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 2359 return(SSL_ERROR_WANT_READ); 2360 else if (BIO_should_io_special(bio)) 2361 { 2362 reason=BIO_get_retry_reason(bio); 2363 if (reason == BIO_RR_CONNECT) 2364 return(SSL_ERROR_WANT_CONNECT); 2365 else if (reason == BIO_RR_ACCEPT) 2366 return(SSL_ERROR_WANT_ACCEPT); 2367 else 2368 return(SSL_ERROR_SYSCALL); 2369 } 2370 } 2371 if ((i < 0) && SSL_want_x509_lookup(s)) 2372 { 2373 return(SSL_ERROR_WANT_X509_LOOKUP); 2374 } 2375 2376 if (i == 0) 2377 { 2378 if (s->version == SSL2_VERSION) 2379 { 2380 /* assume it is the socket being closed */ 2381 return(SSL_ERROR_ZERO_RETURN); 2382 } 2383 else 2384 { 2385 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2386 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2387 return(SSL_ERROR_ZERO_RETURN); 2388 } 2389 } 2390 return(SSL_ERROR_SYSCALL); 2391 } 2392 2393 int SSL_do_handshake(SSL *s) 2394 { 2395 int ret=1; 2396 2397 if (s->handshake_func == NULL) 2398 { 2399 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 2400 return(-1); 2401 } 2402 2403 s->method->ssl_renegotiate_check(s); 2404 2405 if (SSL_in_init(s) || SSL_in_before(s)) 2406 { 2407 ret=s->handshake_func(s); 2408 } 2409 return(ret); 2410 } 2411 2412 /* For the next 2 functions, SSL_clear() sets shutdown and so 2413 * one of these calls will reset it */ 2414 void SSL_set_accept_state(SSL *s) 2415 { 2416 s->server=1; 2417 s->shutdown=0; 2418 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 2419 s->handshake_func=s->method->ssl_accept; 2420 /* clear the current cipher */ 2421 ssl_clear_cipher_ctx(s); 2422 ssl_clear_hash_ctx(&s->read_hash); 2423 ssl_clear_hash_ctx(&s->write_hash); 2424 } 2425 2426 void SSL_set_connect_state(SSL *s) 2427 { 2428 s->server=0; 2429 s->shutdown=0; 2430 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 2431 s->handshake_func=s->method->ssl_connect; 2432 /* clear the current cipher */ 2433 ssl_clear_cipher_ctx(s); 2434 ssl_clear_hash_ctx(&s->read_hash); 2435 ssl_clear_hash_ctx(&s->write_hash); 2436 } 2437 2438 int ssl_undefined_function(SSL *s) 2439 { 2440 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2441 return(0); 2442 } 2443 2444 int ssl_undefined_void_function(void) 2445 { 2446 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2447 return(0); 2448 } 2449 2450 int ssl_undefined_const_function(const SSL *s) 2451 { 2452 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2453 return(0); 2454 } 2455 2456 SSL_METHOD *ssl_bad_method(int ver) 2457 { 2458 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2459 return(NULL); 2460 } 2461 2462 const char *SSL_get_version(const SSL *s) 2463 { 2464 if (s->version == TLS1_VERSION) 2465 return("TLSv1"); 2466 else if (s->version == SSL3_VERSION) 2467 return("SSLv3"); 2468 else if (s->version == SSL2_VERSION) 2469 return("SSLv2"); 2470 else 2471 return("unknown"); 2472 } 2473 2474 SSL *SSL_dup(SSL *s) 2475 { 2476 STACK_OF(X509_NAME) *sk; 2477 X509_NAME *xn; 2478 SSL *ret; 2479 int i; 2480 2481 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2482 return(NULL); 2483 2484 ret->version = s->version; 2485 ret->type = s->type; 2486 ret->method = s->method; 2487 2488 if (s->session != NULL) 2489 { 2490 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 2491 SSL_copy_session_id(ret,s); 2492 } 2493 else 2494 { 2495 /* No session has been established yet, so we have to expect 2496 * that s->cert or ret->cert will be changed later -- 2497 * they should not both point to the same object, 2498 * and thus we can't use SSL_copy_session_id. */ 2499 2500 ret->method->ssl_free(ret); 2501 ret->method = s->method; 2502 ret->method->ssl_new(ret); 2503 2504 if (s->cert != NULL) 2505 { 2506 if (ret->cert != NULL) 2507 { 2508 ssl_cert_free(ret->cert); 2509 } 2510 ret->cert = ssl_cert_dup(s->cert); 2511 if (ret->cert == NULL) 2512 goto err; 2513 } 2514 2515 SSL_set_session_id_context(ret, 2516 s->sid_ctx, s->sid_ctx_length); 2517 } 2518 2519 ret->options=s->options; 2520 ret->mode=s->mode; 2521 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s)); 2522 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 2523 ret->msg_callback = s->msg_callback; 2524 ret->msg_callback_arg = s->msg_callback_arg; 2525 SSL_set_verify(ret,SSL_get_verify_mode(s), 2526 SSL_get_verify_callback(s)); 2527 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 2528 ret->generate_session_id = s->generate_session_id; 2529 2530 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 2531 2532 ret->debug=s->debug; 2533 2534 /* copy app data, a little dangerous perhaps */ 2535 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) 2536 goto err; 2537 2538 /* setup rbio, and wbio */ 2539 if (s->rbio != NULL) 2540 { 2541 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2542 goto err; 2543 } 2544 if (s->wbio != NULL) 2545 { 2546 if (s->wbio != s->rbio) 2547 { 2548 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2549 goto err; 2550 } 2551 else 2552 ret->wbio=ret->rbio; 2553 } 2554 ret->rwstate = s->rwstate; 2555 ret->in_handshake = s->in_handshake; 2556 ret->handshake_func = s->handshake_func; 2557 ret->server = s->server; 2558 ret->new_session = s->new_session; 2559 ret->quiet_shutdown = s->quiet_shutdown; 2560 ret->shutdown=s->shutdown; 2561 ret->state=s->state; /* SSL_dup does not really work at any state, though */ 2562 ret->rstate=s->rstate; 2563 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */ 2564 ret->hit=s->hit; 2565 2566 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2567 2568 /* dup the cipher_list and cipher_list_by_id stacks */ 2569 if (s->cipher_list != NULL) 2570 { 2571 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2572 goto err; 2573 } 2574 if (s->cipher_list_by_id != NULL) 2575 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 2576 == NULL) 2577 goto err; 2578 2579 /* Dup the client_CA list */ 2580 if (s->client_CA != NULL) 2581 { 2582 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 2583 ret->client_CA=sk; 2584 for (i=0; i<sk_X509_NAME_num(sk); i++) 2585 { 2586 xn=sk_X509_NAME_value(sk,i); 2587 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 2588 { 2589 X509_NAME_free(xn); 2590 goto err; 2591 } 2592 } 2593 } 2594 2595 if (0) 2596 { 2597 err: 2598 if (ret != NULL) SSL_free(ret); 2599 ret=NULL; 2600 } 2601 return(ret); 2602 } 2603 2604 void ssl_clear_cipher_ctx(SSL *s) 2605 { 2606 if (s->enc_read_ctx != NULL) 2607 { 2608 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 2609 OPENSSL_free(s->enc_read_ctx); 2610 s->enc_read_ctx=NULL; 2611 } 2612 if (s->enc_write_ctx != NULL) 2613 { 2614 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 2615 OPENSSL_free(s->enc_write_ctx); 2616 s->enc_write_ctx=NULL; 2617 } 2618 #ifndef OPENSSL_NO_COMP 2619 if (s->expand != NULL) 2620 { 2621 COMP_CTX_free(s->expand); 2622 s->expand=NULL; 2623 } 2624 if (s->compress != NULL) 2625 { 2626 COMP_CTX_free(s->compress); 2627 s->compress=NULL; 2628 } 2629 #endif 2630 } 2631 2632 /* Fix this function so that it takes an optional type parameter */ 2633 X509 *SSL_get_certificate(const SSL *s) 2634 { 2635 if (s->cert != NULL) 2636 return(s->cert->key->x509); 2637 else 2638 return(NULL); 2639 } 2640 2641 /* Fix this function so that it takes an optional type parameter */ 2642 EVP_PKEY *SSL_get_privatekey(SSL *s) 2643 { 2644 if (s->cert != NULL) 2645 return(s->cert->key->privatekey); 2646 else 2647 return(NULL); 2648 } 2649 2650 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) 2651 { 2652 if ((s->session != NULL) && (s->session->cipher != NULL)) 2653 return(s->session->cipher); 2654 return(NULL); 2655 } 2656 #ifdef OPENSSL_NO_COMP 2657 const void *SSL_get_current_compression(SSL *s) 2658 { 2659 return NULL; 2660 } 2661 const void *SSL_get_current_expansion(SSL *s) 2662 { 2663 return NULL; 2664 } 2665 #else 2666 2667 const COMP_METHOD *SSL_get_current_compression(SSL *s) 2668 { 2669 if (s->compress != NULL) 2670 return(s->compress->meth); 2671 return(NULL); 2672 } 2673 2674 const COMP_METHOD *SSL_get_current_expansion(SSL *s) 2675 { 2676 if (s->expand != NULL) 2677 return(s->expand->meth); 2678 return(NULL); 2679 } 2680 #endif 2681 2682 int ssl_init_wbio_buffer(SSL *s,int push) 2683 { 2684 BIO *bbio; 2685 2686 if (s->bbio == NULL) 2687 { 2688 bbio=BIO_new(BIO_f_buffer()); 2689 if (bbio == NULL) return(0); 2690 s->bbio=bbio; 2691 } 2692 else 2693 { 2694 bbio=s->bbio; 2695 if (s->bbio == s->wbio) 2696 s->wbio=BIO_pop(s->wbio); 2697 } 2698 (void)BIO_reset(bbio); 2699 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2700 if (!BIO_set_read_buffer_size(bbio,1)) 2701 { 2702 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 2703 return(0); 2704 } 2705 if (push) 2706 { 2707 if (s->wbio != bbio) 2708 s->wbio=BIO_push(bbio,s->wbio); 2709 } 2710 else 2711 { 2712 if (s->wbio == bbio) 2713 s->wbio=BIO_pop(bbio); 2714 } 2715 return(1); 2716 } 2717 2718 void ssl_free_wbio_buffer(SSL *s) 2719 { 2720 if (s->bbio == NULL) return; 2721 2722 if (s->bbio == s->wbio) 2723 { 2724 /* remove buffering */ 2725 s->wbio=BIO_pop(s->wbio); 2726 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */ 2727 assert(s->wbio != NULL); 2728 #endif 2729 } 2730 BIO_free(s->bbio); 2731 s->bbio=NULL; 2732 } 2733 2734 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 2735 { 2736 ctx->quiet_shutdown=mode; 2737 } 2738 2739 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2740 { 2741 return(ctx->quiet_shutdown); 2742 } 2743 2744 void SSL_set_quiet_shutdown(SSL *s,int mode) 2745 { 2746 s->quiet_shutdown=mode; 2747 } 2748 2749 int SSL_get_quiet_shutdown(const SSL *s) 2750 { 2751 return(s->quiet_shutdown); 2752 } 2753 2754 void SSL_set_shutdown(SSL *s,int mode) 2755 { 2756 s->shutdown=mode; 2757 } 2758 2759 int SSL_get_shutdown(const SSL *s) 2760 { 2761 return(s->shutdown); 2762 } 2763 2764 int SSL_version(const SSL *s) 2765 { 2766 return(s->version); 2767 } 2768 2769 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) 2770 { 2771 return(ssl->ctx); 2772 } 2773 2774 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2775 { 2776 if (ssl->ctx == ctx) 2777 return ssl->ctx; 2778 #ifndef OPENSSL_NO_TLSEXT 2779 if (ctx == NULL) 2780 ctx = ssl->initial_ctx; 2781 #endif 2782 if (ssl->cert != NULL) 2783 ssl_cert_free(ssl->cert); 2784 ssl->cert = ssl_cert_dup(ctx->cert); 2785 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 2786 if (ssl->ctx != NULL) 2787 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2788 ssl->ctx = ctx; 2789 return(ssl->ctx); 2790 } 2791 2792 #ifndef OPENSSL_NO_STDIO 2793 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2794 { 2795 return(X509_STORE_set_default_paths(ctx->cert_store)); 2796 } 2797 2798 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2799 const char *CApath) 2800 { 2801 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 2802 } 2803 #endif 2804 2805 void SSL_set_info_callback(SSL *ssl, 2806 void (*cb)(const SSL *ssl,int type,int val)) 2807 { 2808 ssl->info_callback=cb; 2809 } 2810 2811 /* One compiler (Diab DCC) doesn't like argument names in returned 2812 function pointer. */ 2813 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/) 2814 { 2815 return ssl->info_callback; 2816 } 2817 2818 int SSL_state(const SSL *ssl) 2819 { 2820 return(ssl->state); 2821 } 2822 2823 void SSL_set_verify_result(SSL *ssl,long arg) 2824 { 2825 ssl->verify_result=arg; 2826 } 2827 2828 long SSL_get_verify_result(const SSL *ssl) 2829 { 2830 return(ssl->verify_result); 2831 } 2832 2833 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2834 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2835 { 2836 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2837 new_func, dup_func, free_func); 2838 } 2839 2840 int SSL_set_ex_data(SSL *s,int idx,void *arg) 2841 { 2842 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2843 } 2844 2845 void *SSL_get_ex_data(const SSL *s,int idx) 2846 { 2847 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2848 } 2849 2850 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2851 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2852 { 2853 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2854 new_func, dup_func, free_func); 2855 } 2856 2857 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 2858 { 2859 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2860 } 2861 2862 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx) 2863 { 2864 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2865 } 2866 2867 int ssl_ok(SSL *s) 2868 { 2869 return(1); 2870 } 2871 2872 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2873 { 2874 return(ctx->cert_store); 2875 } 2876 2877 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 2878 { 2879 if (ctx->cert_store != NULL) 2880 X509_STORE_free(ctx->cert_store); 2881 ctx->cert_store=store; 2882 } 2883 2884 int SSL_want(const SSL *s) 2885 { 2886 return(s->rwstate); 2887 } 2888 2889 /*! 2890 * \brief Set the callback for generating temporary RSA keys. 2891 * \param ctx the SSL context. 2892 * \param cb the callback 2893 */ 2894 2895 #ifndef OPENSSL_NO_RSA 2896 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2897 int is_export, 2898 int keylength)) 2899 { 2900 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2901 } 2902 2903 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2904 int is_export, 2905 int keylength)) 2906 { 2907 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2908 } 2909 #endif 2910 2911 #ifdef DOXYGEN 2912 /*! 2913 * \brief The RSA temporary key callback function. 2914 * \param ssl the SSL session. 2915 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2916 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2917 * of the required key in bits. 2918 * \return the temporary RSA key. 2919 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2920 */ 2921 2922 RSA *cb(SSL *ssl,int is_export,int keylength) 2923 {} 2924 #endif 2925 2926 /*! 2927 * \brief Set the callback for generating temporary DH keys. 2928 * \param ctx the SSL context. 2929 * \param dh the callback 2930 */ 2931 2932 #ifndef OPENSSL_NO_DH 2933 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2934 int keylength)) 2935 { 2936 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2937 } 2938 2939 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2940 int keylength)) 2941 { 2942 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2943 } 2944 #endif 2945 2946 #ifndef OPENSSL_NO_ECDH 2947 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2948 int keylength)) 2949 { 2950 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2951 } 2952 2953 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2954 int keylength)) 2955 { 2956 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2957 } 2958 #endif 2959 2960 #ifndef OPENSSL_NO_PSK 2961 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) 2962 { 2963 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) 2964 { 2965 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); 2966 return 0; 2967 } 2968 if (ctx->psk_identity_hint != NULL) 2969 OPENSSL_free(ctx->psk_identity_hint); 2970 if (identity_hint != NULL) 2971 { 2972 ctx->psk_identity_hint = BUF_strdup(identity_hint); 2973 if (ctx->psk_identity_hint == NULL) 2974 return 0; 2975 } 2976 else 2977 ctx->psk_identity_hint = NULL; 2978 return 1; 2979 } 2980 2981 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) 2982 { 2983 if (s == NULL) 2984 return 0; 2985 2986 if (s->session == NULL) 2987 return 1; /* session not created yet, ignored */ 2988 2989 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) 2990 { 2991 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); 2992 return 0; 2993 } 2994 if (s->session->psk_identity_hint != NULL) 2995 OPENSSL_free(s->session->psk_identity_hint); 2996 if (identity_hint != NULL) 2997 { 2998 s->session->psk_identity_hint = BUF_strdup(identity_hint); 2999 if (s->session->psk_identity_hint == NULL) 3000 return 0; 3001 } 3002 else 3003 s->session->psk_identity_hint = NULL; 3004 return 1; 3005 } 3006 3007 const char *SSL_get_psk_identity_hint(const SSL *s) 3008 { 3009 if (s == NULL || s->session == NULL) 3010 return NULL; 3011 return(s->session->psk_identity_hint); 3012 } 3013 3014 const char *SSL_get_psk_identity(const SSL *s) 3015 { 3016 if (s == NULL || s->session == NULL) 3017 return NULL; 3018 return(s->session->psk_identity); 3019 } 3020 3021 void SSL_set_psk_client_callback(SSL *s, 3022 unsigned int (*cb)(SSL *ssl, const char *hint, 3023 char *identity, unsigned int max_identity_len, unsigned char *psk, 3024 unsigned int max_psk_len)) 3025 { 3026 s->psk_client_callback = cb; 3027 } 3028 3029 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, 3030 unsigned int (*cb)(SSL *ssl, const char *hint, 3031 char *identity, unsigned int max_identity_len, unsigned char *psk, 3032 unsigned int max_psk_len)) 3033 { 3034 ctx->psk_client_callback = cb; 3035 } 3036 3037 void SSL_set_psk_server_callback(SSL *s, 3038 unsigned int (*cb)(SSL *ssl, const char *identity, 3039 unsigned char *psk, unsigned int max_psk_len)) 3040 { 3041 s->psk_server_callback = cb; 3042 } 3043 3044 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, 3045 unsigned int (*cb)(SSL *ssl, const char *identity, 3046 unsigned char *psk, unsigned int max_psk_len)) 3047 { 3048 ctx->psk_server_callback = cb; 3049 } 3050 #endif 3051 3052 void SSL_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)) 3053 { 3054 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3055 } 3056 void SSL_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)) 3057 { 3058 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 3059 } 3060 3061 int SSL_cutthrough_complete(const SSL *s) 3062 { 3063 return (!s->server && /* cutthrough only applies to clients */ 3064 !s->hit && /* full-handshake */ 3065 s->version >= SSL3_VERSION && 3066 s->s3->in_read_app_data == 0 && /* cutthrough only applies to write() */ 3067 (SSL_get_mode((SSL*)s) & SSL_MODE_HANDSHAKE_CUTTHROUGH) && /* cutthrough enabled */ 3068 SSL_get_cipher_bits(s, NULL) >= 128 && /* strong cipher choosen */ 3069 s->s3->previous_server_finished_len == 0 && /* not a renegotiation handshake */ 3070 (s->state == SSL3_ST_CR_SESSION_TICKET_A || /* ready to write app-data*/ 3071 s->state == SSL3_ST_CR_FINISHED_A)); 3072 } 3073 3074 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer 3075 * vairable, freeing EVP_MD_CTX previously stored in that variable, if 3076 * any. If EVP_MD pointer is passed, initializes ctx with this md 3077 * Returns newly allocated ctx; 3078 */ 3079 3080 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md) 3081 { 3082 ssl_clear_hash_ctx(hash); 3083 *hash = EVP_MD_CTX_create(); 3084 if (md) EVP_DigestInit_ex(*hash,md,NULL); 3085 return *hash; 3086 } 3087 void ssl_clear_hash_ctx(EVP_MD_CTX **hash) 3088 { 3089 3090 if (*hash) EVP_MD_CTX_destroy(*hash); 3091 *hash=NULL; 3092 } 3093 3094 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16) 3095 #include "../crypto/bio/bss_file.c" 3096 #endif 3097 3098 IMPLEMENT_STACK_OF(SSL_CIPHER) 3099 IMPLEMENT_STACK_OF(SSL_COMP) 3100 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, 3101 ssl_cipher_id); 3102 3103