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) 1998-2001 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#ifdef REF_CHECK 120# include <assert.h> 121#endif 122#include <stdio.h> 123#include "ssl_locl.h" 124#include "kssl_lcl.h" 125#include <openssl/objects.h> 126#include <openssl/lhash.h> 127#include <openssl/x509v3.h> 128#include <openssl/rand.h> 129#include <openssl/ocsp.h> 130#ifndef OPENSSL_NO_DH 131#include <openssl/dh.h> 132#endif 133#ifndef OPENSSL_NO_ENGINE 134#include <openssl/engine.h> 135#endif 136 137const char *SSL_version_str=OPENSSL_VERSION_TEXT; 138 139SSL3_ENC_METHOD ssl3_undef_enc_method={ 140 /* evil casts, but these functions are only called if there's a library bug */ 141 (int (*)(SSL *,int))ssl_undefined_function, 142 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, 143 ssl_undefined_function, 144 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function, 145 (int (*)(SSL*, int))ssl_undefined_function, 146 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function, 147 0, /* finish_mac_length */ 148 (int (*)(SSL *, EVP_MD_CTX *, unsigned char *))ssl_undefined_function, 149 NULL, /* client_finished_label */ 150 0, /* client_finished_label_len */ 151 NULL, /* server_finished_label */ 152 0, /* server_finished_label_len */ 153 (int (*)(int))ssl_undefined_function 154 }; 155 156int SSL_clear(SSL *s) 157 { 158 159 if (s->method == NULL) 160 { 161 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED); 162 return(0); 163 } 164 165 if (ssl_clear_bad_session(s)) 166 { 167 SSL_SESSION_free(s->session); 168 s->session=NULL; 169 } 170 171 s->error=0; 172 s->hit=0; 173 s->shutdown=0; 174 175#if 0 /* Disabled since version 1.10 of this file (early return not 176 * needed because SSL_clear is not called when doing renegotiation) */ 177 /* This is set if we are doing dynamic renegotiation so keep 178 * the old cipher. It is sort of a SSL_clear_lite :-) */ 179 if (s->new_session) return(1); 180#else 181 if (s->new_session) 182 { 183 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR); 184 return 0; 185 } 186#endif 187 188 s->type=0; 189 190 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT); 191 192 s->version=s->method->version; 193 s->client_version=s->version; 194 s->rwstate=SSL_NOTHING; 195 s->rstate=SSL_ST_READ_HEADER; 196#if 0 197 s->read_ahead=s->ctx->read_ahead; 198#endif 199 200 if (s->init_buf != NULL) 201 { 202 BUF_MEM_free(s->init_buf); 203 s->init_buf=NULL; 204 } 205 206 ssl_clear_cipher_ctx(s); 207 208 s->first_packet=0; 209 210#if 1 211 /* Check to see if we were changed into a different method, if 212 * so, revert back if we are not doing session-id reuse. */ 213 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method)) 214 { 215 s->method->ssl_free(s); 216 s->method=s->ctx->method; 217 if (!s->method->ssl_new(s)) 218 return(0); 219 } 220 else 221#endif 222 s->method->ssl_clear(s); 223 return(1); 224 } 225 226/** Used to change an SSL_CTXs default SSL method type */ 227int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth) 228 { 229 STACK_OF(SSL_CIPHER) *sk; 230 231 ctx->method=meth; 232 233 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list), 234 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST); 235 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) 236 { 237 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 238 return(0); 239 } 240 return(1); 241 } 242 243SSL *SSL_new(SSL_CTX *ctx) 244 { 245 SSL *s; 246 247 if (ctx == NULL) 248 { 249 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX); 250 return(NULL); 251 } 252 if (ctx->method == NULL) 253 { 254 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 255 return(NULL); 256 } 257 258 s=(SSL *)OPENSSL_malloc(sizeof(SSL)); 259 if (s == NULL) goto err; 260 memset(s,0,sizeof(SSL)); 261 262#ifndef OPENSSL_NO_KRB5 263 s->kssl_ctx = kssl_ctx_new(); 264#endif /* OPENSSL_NO_KRB5 */ 265 266 s->options=ctx->options; 267 s->mode=ctx->mode; 268 s->max_cert_list=ctx->max_cert_list; 269 270 if (ctx->cert != NULL) 271 { 272 /* Earlier library versions used to copy the pointer to 273 * the CERT, not its contents; only when setting new 274 * parameters for the per-SSL copy, ssl_cert_new would be 275 * called (and the direct reference to the per-SSL_CTX 276 * settings would be lost, but those still were indirectly 277 * accessed for various purposes, and for that reason they 278 * used to be known as s->ctx->default_cert). 279 * Now we don't look at the SSL_CTX's CERT after having 280 * duplicated it once. */ 281 282 s->cert = ssl_cert_dup(ctx->cert); 283 if (s->cert == NULL) 284 goto err; 285 } 286 else 287 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 288 289 s->read_ahead=ctx->read_ahead; 290 s->msg_callback=ctx->msg_callback; 291 s->msg_callback_arg=ctx->msg_callback_arg; 292 s->verify_mode=ctx->verify_mode; 293#if 0 294 s->verify_depth=ctx->verify_depth; 295#endif 296 s->sid_ctx_length=ctx->sid_ctx_length; 297 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 298 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx)); 299 s->verify_callback=ctx->default_verify_callback; 300 s->generate_session_id=ctx->generate_session_id; 301 302 s->param = X509_VERIFY_PARAM_new(); 303 if (!s->param) 304 goto err; 305 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 306#if 0 307 s->purpose = ctx->purpose; 308 s->trust = ctx->trust; 309#endif 310 s->quiet_shutdown=ctx->quiet_shutdown; 311 312 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 313 s->ctx=ctx; 314#ifndef OPENSSL_NO_TLSEXT 315 s->tlsext_debug_cb = 0; 316 s->tlsext_debug_arg = NULL; 317 s->tlsext_ticket_expected = 0; 318 s->tlsext_status_type = -1; 319 s->tlsext_status_expected = 0; 320 s->tlsext_ocsp_ids = NULL; 321 s->tlsext_ocsp_exts = NULL; 322 s->tlsext_ocsp_resp = NULL; 323 s->tlsext_ocsp_resplen = -1; 324 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 325 s->initial_ctx=ctx; 326#endif 327 s->verify_result=X509_V_OK; 328 329 s->method=ctx->method; 330 331 if (!s->method->ssl_new(s)) 332 goto err; 333 334 s->references=1; 335 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1; 336 337 SSL_clear(s); 338 339 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 340 341 return(s); 342err: 343 if (s != NULL) 344 { 345 if (s->cert != NULL) 346 ssl_cert_free(s->cert); 347 if (s->ctx != NULL) 348 SSL_CTX_free(s->ctx); /* decrement reference count */ 349 OPENSSL_free(s); 350 } 351 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE); 352 return(NULL); 353 } 354 355int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx, 356 unsigned int sid_ctx_len) 357 { 358 if(sid_ctx_len > sizeof ctx->sid_ctx) 359 { 360 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 361 return 0; 362 } 363 ctx->sid_ctx_length=sid_ctx_len; 364 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len); 365 366 return 1; 367 } 368 369int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx, 370 unsigned int sid_ctx_len) 371 { 372 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 373 { 374 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 375 return 0; 376 } 377 ssl->sid_ctx_length=sid_ctx_len; 378 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len); 379 380 return 1; 381 } 382 383int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 384 { 385 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 386 ctx->generate_session_id = cb; 387 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 388 return 1; 389 } 390 391int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 392 { 393 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 394 ssl->generate_session_id = cb; 395 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 396 return 1; 397 } 398 399int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 400 unsigned int id_len) 401 { 402 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how 403 * we can "construct" a session to give us the desired check - ie. to 404 * find if there's a session in the hash table that would conflict with 405 * any new session built out of this id/id_len and the ssl_version in 406 * use by this SSL. */ 407 SSL_SESSION r, *p; 408 409 if(id_len > sizeof r.session_id) 410 return 0; 411 412 r.ssl_version = ssl->version; 413 r.session_id_length = id_len; 414 memcpy(r.session_id, id, id_len); 415 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a 416 * callback is calling us to check the uniqueness of a shorter ID, it 417 * must be compared as a padded-out ID because that is what it will be 418 * converted to when the callback has finished choosing it. */ 419 if((r.ssl_version == SSL2_VERSION) && 420 (id_len < SSL2_SSL_SESSION_ID_LENGTH)) 421 { 422 memset(r.session_id + id_len, 0, 423 SSL2_SSL_SESSION_ID_LENGTH - id_len); 424 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH; 425 } 426 427 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 428 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r); 429 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 430 return (p != NULL); 431 } 432 433int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 434 { 435 return X509_VERIFY_PARAM_set_purpose(s->param, purpose); 436 } 437 438int SSL_set_purpose(SSL *s, int purpose) 439 { 440 return X509_VERIFY_PARAM_set_purpose(s->param, purpose); 441 } 442 443int SSL_CTX_set_trust(SSL_CTX *s, int trust) 444 { 445 return X509_VERIFY_PARAM_set_trust(s->param, trust); 446 } 447 448int SSL_set_trust(SSL *s, int trust) 449 { 450 return X509_VERIFY_PARAM_set_trust(s->param, trust); 451 } 452 453void SSL_free(SSL *s) 454 { 455 int i; 456 457 if(s == NULL) 458 return; 459 460 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL); 461#ifdef REF_PRINT 462 REF_PRINT("SSL",s); 463#endif 464 if (i > 0) return; 465#ifdef REF_CHECK 466 if (i < 0) 467 { 468 fprintf(stderr,"SSL_free, bad reference count\n"); 469 abort(); /* ok */ 470 } 471#endif 472 473 if (s->param) 474 X509_VERIFY_PARAM_free(s->param); 475 476 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 477 478 if (s->bbio != NULL) 479 { 480 /* If the buffering BIO is in place, pop it off */ 481 if (s->bbio == s->wbio) 482 { 483 s->wbio=BIO_pop(s->wbio); 484 } 485 BIO_free(s->bbio); 486 s->bbio=NULL; 487 } 488 if (s->rbio != NULL) 489 BIO_free_all(s->rbio); 490 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 491 BIO_free_all(s->wbio); 492 493 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf); 494 495 /* add extra stuff */ 496 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list); 497 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id); 498 499 /* Make the next call work :-) */ 500 if (s->session != NULL) 501 { 502 ssl_clear_bad_session(s); 503 SSL_SESSION_free(s->session); 504 } 505 506 ssl_clear_cipher_ctx(s); 507 508 if (s->cert != NULL) ssl_cert_free(s->cert); 509 /* Free up if allocated */ 510 511#ifndef OPENSSL_NO_TLSEXT 512 if (s->tlsext_hostname) 513 OPENSSL_free(s->tlsext_hostname); 514 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx); 515 if (s->tlsext_ocsp_exts) 516 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 517 X509_EXTENSION_free); 518 if (s->tlsext_ocsp_ids) 519 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 520 if (s->tlsext_ocsp_resp) 521 OPENSSL_free(s->tlsext_ocsp_resp); 522#endif 523 if (s->client_CA != NULL) 524 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free); 525 526 if (s->method != NULL) s->method->ssl_free(s); 527 528 if (s->ctx) SSL_CTX_free(s->ctx); 529 530#ifndef OPENSSL_NO_KRB5 531 if (s->kssl_ctx != NULL) 532 kssl_ctx_free(s->kssl_ctx); 533#endif /* OPENSSL_NO_KRB5 */ 534 535 OPENSSL_free(s); 536 } 537 538void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio) 539 { 540 /* If the output buffering BIO is still in place, remove it 541 */ 542 if (s->bbio != NULL) 543 { 544 if (s->wbio == s->bbio) 545 { 546 s->wbio=s->wbio->next_bio; 547 s->bbio->next_bio=NULL; 548 } 549 } 550 if ((s->rbio != NULL) && (s->rbio != rbio)) 551 BIO_free_all(s->rbio); 552 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 553 BIO_free_all(s->wbio); 554 s->rbio=rbio; 555 s->wbio=wbio; 556 } 557 558BIO *SSL_get_rbio(const SSL *s) 559 { return(s->rbio); } 560 561BIO *SSL_get_wbio(const SSL *s) 562 { return(s->wbio); } 563 564int SSL_get_fd(const SSL *s) 565 { 566 return(SSL_get_rfd(s)); 567 } 568 569int SSL_get_rfd(const SSL *s) 570 { 571 int ret= -1; 572 BIO *b,*r; 573 574 b=SSL_get_rbio(s); 575 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 576 if (r != NULL) 577 BIO_get_fd(r,&ret); 578 return(ret); 579 } 580 581int SSL_get_wfd(const SSL *s) 582 { 583 int ret= -1; 584 BIO *b,*r; 585 586 b=SSL_get_wbio(s); 587 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 588 if (r != NULL) 589 BIO_get_fd(r,&ret); 590 return(ret); 591 } 592 593#ifndef OPENSSL_NO_SOCK 594int SSL_set_fd(SSL *s,int fd) 595 { 596 int ret=0; 597 BIO *bio=NULL; 598 599 bio=BIO_new(BIO_s_socket()); 600 601 if (bio == NULL) 602 { 603 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 604 goto err; 605 } 606 BIO_set_fd(bio,fd,BIO_NOCLOSE); 607 SSL_set_bio(s,bio,bio); 608 ret=1; 609err: 610 return(ret); 611 } 612 613int SSL_set_wfd(SSL *s,int fd) 614 { 615 int ret=0; 616 BIO *bio=NULL; 617 618 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 619 || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 620 { 621 bio=BIO_new(BIO_s_socket()); 622 623 if (bio == NULL) 624 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 625 BIO_set_fd(bio,fd,BIO_NOCLOSE); 626 SSL_set_bio(s,SSL_get_rbio(s),bio); 627 } 628 else 629 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 630 ret=1; 631err: 632 return(ret); 633 } 634 635int SSL_set_rfd(SSL *s,int fd) 636 { 637 int ret=0; 638 BIO *bio=NULL; 639 640 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 641 || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 642 { 643 bio=BIO_new(BIO_s_socket()); 644 645 if (bio == NULL) 646 { 647 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 648 goto err; 649 } 650 BIO_set_fd(bio,fd,BIO_NOCLOSE); 651 SSL_set_bio(s,bio,SSL_get_wbio(s)); 652 } 653 else 654 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 655 ret=1; 656err: 657 return(ret); 658 } 659#endif 660 661 662/* return length of latest Finished message we sent, copy to 'buf' */ 663size_t SSL_get_finished(const SSL *s, void *buf, size_t count) 664 { 665 size_t ret = 0; 666 667 if (s->s3 != NULL) 668 { 669 ret = s->s3->tmp.finish_md_len; 670 if (count > ret) 671 count = ret; 672 memcpy(buf, s->s3->tmp.finish_md, count); 673 } 674 return ret; 675 } 676 677/* return length of latest Finished message we expected, copy to 'buf' */ 678size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 679 { 680 size_t ret = 0; 681 682 if (s->s3 != NULL) 683 { 684 ret = s->s3->tmp.peer_finish_md_len; 685 if (count > ret) 686 count = ret; 687 memcpy(buf, s->s3->tmp.peer_finish_md, count); 688 } 689 return ret; 690 } 691 692 693int SSL_get_verify_mode(const SSL *s) 694 { 695 return(s->verify_mode); 696 } 697 698int SSL_get_verify_depth(const SSL *s) 699 { 700 return X509_VERIFY_PARAM_get_depth(s->param); 701 } 702 703int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *) 704 { 705 return(s->verify_callback); 706 } 707 708int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 709 { 710 return(ctx->verify_mode); 711 } 712 713int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 714 { 715 return X509_VERIFY_PARAM_get_depth(ctx->param); 716 } 717 718int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *) 719 { 720 return(ctx->default_verify_callback); 721 } 722 723void SSL_set_verify(SSL *s,int mode, 724 int (*callback)(int ok,X509_STORE_CTX *ctx)) 725 { 726 s->verify_mode=mode; 727 if (callback != NULL) 728 s->verify_callback=callback; 729 } 730 731void SSL_set_verify_depth(SSL *s,int depth) 732 { 733 X509_VERIFY_PARAM_set_depth(s->param, depth); 734 } 735 736void SSL_set_read_ahead(SSL *s,int yes) 737 { 738 s->read_ahead=yes; 739 } 740 741int SSL_get_read_ahead(const SSL *s) 742 { 743 return(s->read_ahead); 744 } 745 746int SSL_pending(const SSL *s) 747 { 748 /* SSL_pending cannot work properly if read-ahead is enabled 749 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 750 * and it is impossible to fix since SSL_pending cannot report 751 * errors that may be observed while scanning the new data. 752 * (Note that SSL_pending() is often used as a boolean value, 753 * so we'd better not return -1.) 754 */ 755 return(s->method->ssl_pending(s)); 756 } 757 758X509 *SSL_get_peer_certificate(const SSL *s) 759 { 760 X509 *r; 761 762 if ((s == NULL) || (s->session == NULL)) 763 r=NULL; 764 else 765 r=s->session->peer; 766 767 if (r == NULL) return(r); 768 769 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 770 771 return(r); 772 } 773 774STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) 775 { 776 STACK_OF(X509) *r; 777 778 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 779 r=NULL; 780 else 781 r=s->session->sess_cert->cert_chain; 782 783 /* If we are a client, cert_chain includes the peer's own 784 * certificate; if we are a server, it does not. */ 785 786 return(r); 787 } 788 789/* Now in theory, since the calling process own 't' it should be safe to 790 * modify. We need to be able to read f without being hassled */ 791void SSL_copy_session_id(SSL *t,const SSL *f) 792 { 793 CERT *tmp; 794 795 /* Do we need to to SSL locking? */ 796 SSL_set_session(t,SSL_get_session(f)); 797 798 /* what if we are setup as SSLv2 but want to talk SSLv3 or 799 * vice-versa */ 800 if (t->method != f->method) 801 { 802 t->method->ssl_free(t); /* cleanup current */ 803 t->method=f->method; /* change method */ 804 t->method->ssl_new(t); /* setup new */ 805 } 806 807 tmp=t->cert; 808 if (f->cert != NULL) 809 { 810 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 811 t->cert=f->cert; 812 } 813 else 814 t->cert=NULL; 815 if (tmp != NULL) ssl_cert_free(tmp); 816 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length); 817 } 818 819/* Fix this so it checks all the valid key/cert options */ 820int SSL_CTX_check_private_key(const SSL_CTX *ctx) 821 { 822 if ( (ctx == NULL) || 823 (ctx->cert == NULL) || 824 (ctx->cert->key->x509 == NULL)) 825 { 826 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 827 return(0); 828 } 829 if (ctx->cert->key->privatekey == NULL) 830 { 831 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 832 return(0); 833 } 834 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 835 } 836 837/* Fix this function so that it takes an optional type parameter */ 838int SSL_check_private_key(const SSL *ssl) 839 { 840 if (ssl == NULL) 841 { 842 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 843 return(0); 844 } 845 if (ssl->cert == NULL) 846 { 847 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 848 return 0; 849 } 850 if (ssl->cert->key->x509 == NULL) 851 { 852 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 853 return(0); 854 } 855 if (ssl->cert->key->privatekey == NULL) 856 { 857 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 858 return(0); 859 } 860 return(X509_check_private_key(ssl->cert->key->x509, 861 ssl->cert->key->privatekey)); 862 } 863 864int SSL_accept(SSL *s) 865 { 866 if (s->handshake_func == 0) 867 /* Not properly initialized yet */ 868 SSL_set_accept_state(s); 869 870 return(s->method->ssl_accept(s)); 871 } 872 873int SSL_connect(SSL *s) 874 { 875 if (s->handshake_func == 0) 876 /* Not properly initialized yet */ 877 SSL_set_connect_state(s); 878 879 return(s->method->ssl_connect(s)); 880 } 881 882long SSL_get_default_timeout(const SSL *s) 883 { 884 return(s->method->get_timeout()); 885 } 886 887int SSL_read(SSL *s,void *buf,int num) 888 { 889 if (s->handshake_func == 0) 890 { 891 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 892 return -1; 893 } 894 895 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 896 { 897 s->rwstate=SSL_NOTHING; 898 return(0); 899 } 900 return(s->method->ssl_read(s,buf,num)); 901 } 902 903int SSL_peek(SSL *s,void *buf,int num) 904 { 905 if (s->handshake_func == 0) 906 { 907 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); 908 return -1; 909 } 910 911 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 912 { 913 return(0); 914 } 915 return(s->method->ssl_peek(s,buf,num)); 916 } 917 918int SSL_write(SSL *s,const void *buf,int num) 919 { 920 if (s->handshake_func == 0) 921 { 922 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 923 return -1; 924 } 925 926 if (s->shutdown & SSL_SENT_SHUTDOWN) 927 { 928 s->rwstate=SSL_NOTHING; 929 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 930 return(-1); 931 } 932 return(s->method->ssl_write(s,buf,num)); 933 } 934 935int SSL_shutdown(SSL *s) 936 { 937 /* Note that this function behaves differently from what one might 938 * expect. Return values are 0 for no success (yet), 939 * 1 for success; but calling it once is usually not enough, 940 * even if blocking I/O is used (see ssl3_shutdown). 941 */ 942 943 if (s->handshake_func == 0) 944 { 945 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 946 return -1; 947 } 948 949 if ((s != NULL) && !SSL_in_init(s)) 950 return(s->method->ssl_shutdown(s)); 951 else 952 return(1); 953 } 954 955int SSL_renegotiate(SSL *s) 956 { 957 if (s->new_session == 0) 958 { 959 s->new_session=1; 960 } 961 return(s->method->ssl_renegotiate(s)); 962 } 963 964int SSL_renegotiate_pending(SSL *s) 965 { 966 /* becomes true when negotiation is requested; 967 * false again once a handshake has finished */ 968 return (s->new_session != 0); 969 } 970 971long SSL_ctrl(SSL *s,int cmd,long larg,void *parg) 972 { 973 long l; 974 975 switch (cmd) 976 { 977 case SSL_CTRL_GET_READ_AHEAD: 978 return(s->read_ahead); 979 case SSL_CTRL_SET_READ_AHEAD: 980 l=s->read_ahead; 981 s->read_ahead=larg; 982 return(l); 983 984 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 985 s->msg_callback_arg = parg; 986 return 1; 987 988 case SSL_CTRL_OPTIONS: 989 return(s->options|=larg); 990 case SSL_CTRL_CLEAR_OPTIONS: 991 return(s->options&=~larg); 992 case SSL_CTRL_MODE: 993 return(s->mode|=larg); 994 case SSL_CTRL_CLEAR_MODE: 995 return(s->mode &=~larg); 996 case SSL_CTRL_GET_MAX_CERT_LIST: 997 return(s->max_cert_list); 998 case SSL_CTRL_SET_MAX_CERT_LIST: 999 l=s->max_cert_list; 1000 s->max_cert_list=larg; 1001 return(l); 1002 case SSL_CTRL_SET_MTU: 1003#ifndef OPENSSL_NO_DTLS1 1004 if (larg < (long)dtls1_min_mtu()) 1005 return 0; 1006#endif 1007 1008 if (SSL_version(s) == DTLS1_VERSION || 1009 SSL_version(s) == DTLS1_BAD_VER) 1010 { 1011 s->d1->mtu = larg; 1012 return larg; 1013 } 1014 return 0; 1015 case SSL_CTRL_GET_RI_SUPPORT: 1016 if (s->s3) 1017 return s->s3->send_connection_binding; 1018 else return 0; 1019 default: 1020 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 1021 } 1022 } 1023 1024long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1025 { 1026 switch(cmd) 1027 { 1028 case SSL_CTRL_SET_MSG_CALLBACK: 1029 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1030 return 1; 1031 1032 default: 1033 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 1034 } 1035 } 1036 1037struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx) 1038 { 1039 return ctx->sessions; 1040 } 1041 1042long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg) 1043 { 1044 long l; 1045 1046 switch (cmd) 1047 { 1048 case SSL_CTRL_GET_READ_AHEAD: 1049 return(ctx->read_ahead); 1050 case SSL_CTRL_SET_READ_AHEAD: 1051 l=ctx->read_ahead; 1052 ctx->read_ahead=larg; 1053 return(l); 1054 1055 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1056 ctx->msg_callback_arg = parg; 1057 return 1; 1058 1059 case SSL_CTRL_GET_MAX_CERT_LIST: 1060 return(ctx->max_cert_list); 1061 case SSL_CTRL_SET_MAX_CERT_LIST: 1062 l=ctx->max_cert_list; 1063 ctx->max_cert_list=larg; 1064 return(l); 1065 1066 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1067 l=ctx->session_cache_size; 1068 ctx->session_cache_size=larg; 1069 return(l); 1070 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1071 return(ctx->session_cache_size); 1072 case SSL_CTRL_SET_SESS_CACHE_MODE: 1073 l=ctx->session_cache_mode; 1074 ctx->session_cache_mode=larg; 1075 return(l); 1076 case SSL_CTRL_GET_SESS_CACHE_MODE: 1077 return(ctx->session_cache_mode); 1078 1079 case SSL_CTRL_SESS_NUMBER: 1080 return(ctx->sessions->num_items); 1081 case SSL_CTRL_SESS_CONNECT: 1082 return(ctx->stats.sess_connect); 1083 case SSL_CTRL_SESS_CONNECT_GOOD: 1084 return(ctx->stats.sess_connect_good); 1085 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1086 return(ctx->stats.sess_connect_renegotiate); 1087 case SSL_CTRL_SESS_ACCEPT: 1088 return(ctx->stats.sess_accept); 1089 case SSL_CTRL_SESS_ACCEPT_GOOD: 1090 return(ctx->stats.sess_accept_good); 1091 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1092 return(ctx->stats.sess_accept_renegotiate); 1093 case SSL_CTRL_SESS_HIT: 1094 return(ctx->stats.sess_hit); 1095 case SSL_CTRL_SESS_CB_HIT: 1096 return(ctx->stats.sess_cb_hit); 1097 case SSL_CTRL_SESS_MISSES: 1098 return(ctx->stats.sess_miss); 1099 case SSL_CTRL_SESS_TIMEOUTS: 1100 return(ctx->stats.sess_timeout); 1101 case SSL_CTRL_SESS_CACHE_FULL: 1102 return(ctx->stats.sess_cache_full); 1103 case SSL_CTRL_OPTIONS: 1104 return(ctx->options|=larg); 1105 case SSL_CTRL_CLEAR_OPTIONS: 1106 return(ctx->options&=~larg); 1107 case SSL_CTRL_MODE: 1108 return(ctx->mode|=larg); 1109 case SSL_CTRL_CLEAR_MODE: 1110 return(ctx->mode&=~larg); 1111 default: 1112 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 1113 } 1114 } 1115 1116long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1117 { 1118 switch(cmd) 1119 { 1120 case SSL_CTRL_SET_MSG_CALLBACK: 1121 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1122 return 1; 1123 1124 default: 1125 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 1126 } 1127 } 1128 1129int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1130 { 1131 long l; 1132 1133 l=a->id-b->id; 1134 if (l == 0L) 1135 return(0); 1136 else 1137 return((l > 0)?1:-1); 1138 } 1139 1140int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1141 const SSL_CIPHER * const *bp) 1142 { 1143 long l; 1144 1145 l=(*ap)->id-(*bp)->id; 1146 if (l == 0L) 1147 return(0); 1148 else 1149 return((l > 0)?1:-1); 1150 } 1151 1152/** return a STACK of the ciphers available for the SSL and in order of 1153 * preference */ 1154STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) 1155 { 1156 if (s != NULL) 1157 { 1158 if (s->cipher_list != NULL) 1159 { 1160 return(s->cipher_list); 1161 } 1162 else if ((s->ctx != NULL) && 1163 (s->ctx->cipher_list != NULL)) 1164 { 1165 return(s->ctx->cipher_list); 1166 } 1167 } 1168 return(NULL); 1169 } 1170 1171/** return a STACK of the ciphers available for the SSL and in order of 1172 * algorithm id */ 1173STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 1174 { 1175 if (s != NULL) 1176 { 1177 if (s->cipher_list_by_id != NULL) 1178 { 1179 return(s->cipher_list_by_id); 1180 } 1181 else if ((s->ctx != NULL) && 1182 (s->ctx->cipher_list_by_id != NULL)) 1183 { 1184 return(s->ctx->cipher_list_by_id); 1185 } 1186 } 1187 return(NULL); 1188 } 1189 1190/** The old interface to get the same thing as SSL_get_ciphers() */ 1191const char *SSL_get_cipher_list(const SSL *s,int n) 1192 { 1193 SSL_CIPHER *c; 1194 STACK_OF(SSL_CIPHER) *sk; 1195 1196 if (s == NULL) return(NULL); 1197 sk=SSL_get_ciphers(s); 1198 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1199 return(NULL); 1200 c=sk_SSL_CIPHER_value(sk,n); 1201 if (c == NULL) return(NULL); 1202 return(c->name); 1203 } 1204 1205/** specify the ciphers to be used by default by the SSL_CTX */ 1206int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1207 { 1208 STACK_OF(SSL_CIPHER) *sk; 1209 1210 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 1211 &ctx->cipher_list_by_id,str); 1212 /* ssl_create_cipher_list may return an empty stack if it 1213 * was unable to find a cipher matching the given rule string 1214 * (for example if the rule string specifies a cipher which 1215 * has been disabled). This is not an error as far as 1216 * ssl_create_cipher_list is concerned, and hence 1217 * ctx->cipher_list and ctx->cipher_list_by_id has been 1218 * updated. */ 1219 if (sk == NULL) 1220 return 0; 1221 else if (sk_SSL_CIPHER_num(sk) == 0) 1222 { 1223 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1224 return 0; 1225 } 1226 return 1; 1227 } 1228 1229/** specify the ciphers to be used by the SSL */ 1230int SSL_set_cipher_list(SSL *s,const char *str) 1231 { 1232 STACK_OF(SSL_CIPHER) *sk; 1233 1234 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 1235 &s->cipher_list_by_id,str); 1236 /* see comment in SSL_CTX_set_cipher_list */ 1237 if (sk == NULL) 1238 return 0; 1239 else if (sk_SSL_CIPHER_num(sk) == 0) 1240 { 1241 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1242 return 0; 1243 } 1244 return 1; 1245 } 1246 1247/* works well for SSLv2, not so good for SSLv3 */ 1248char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len) 1249 { 1250 char *p; 1251 STACK_OF(SSL_CIPHER) *sk; 1252 SSL_CIPHER *c; 1253 int i; 1254 1255 if ((s->session == NULL) || (s->session->ciphers == NULL) || 1256 (len < 2)) 1257 return(NULL); 1258 1259 p=buf; 1260 sk=s->session->ciphers; 1261 1262 if (sk_SSL_CIPHER_num(sk) == 0) 1263 return NULL; 1264 1265 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1266 { 1267 int n; 1268 1269 c=sk_SSL_CIPHER_value(sk,i); 1270 n=strlen(c->name); 1271 if (n+1 > len) 1272 { 1273 if (p != buf) 1274 --p; 1275 *p='\0'; 1276 return buf; 1277 } 1278 strcpy(p,c->name); 1279 p+=n; 1280 *(p++)=':'; 1281 len-=n+1; 1282 } 1283 p[-1]='\0'; 1284 return(buf); 1285 } 1286 1287int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p, 1288 int (*put_cb)(const SSL_CIPHER *, unsigned char *)) 1289 { 1290 int i,j=0; 1291 SSL_CIPHER *c; 1292 unsigned char *q; 1293#ifndef OPENSSL_NO_KRB5 1294 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx); 1295#endif /* OPENSSL_NO_KRB5 */ 1296 1297 if (sk == NULL) return(0); 1298 q=p; 1299 1300 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1301 { 1302 c=sk_SSL_CIPHER_value(sk,i); 1303#ifndef OPENSSL_NO_KRB5 1304 if ((c->algorithms & SSL_KRB5) && nokrb5) 1305 continue; 1306#endif /* OPENSSL_NO_KRB5 */ 1307 1308 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p); 1309 p+=j; 1310 } 1311 /* If p == q, no ciphers and caller indicates an error. Otherwise 1312 * add SCSV if not renegotiating. 1313 */ 1314 if (p != q && !s->new_session) 1315 { 1316 static SSL_CIPHER scsv = 1317 { 1318 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 1319 }; 1320 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p); 1321 p+=j; 1322#ifdef OPENSSL_RI_DEBUG 1323 fprintf(stderr, "SCSV sent by client\n"); 1324#endif 1325 } 1326 1327 return(p-q); 1328 } 1329 1330STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1331 STACK_OF(SSL_CIPHER) **skp) 1332 { 1333 SSL_CIPHER *c; 1334 STACK_OF(SSL_CIPHER) *sk; 1335 int i,n; 1336 if (s->s3) 1337 s->s3->send_connection_binding = 0; 1338 1339 n=ssl_put_cipher_by_char(s,NULL,NULL); 1340 if ((num%n) != 0) 1341 { 1342 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1343 return(NULL); 1344 } 1345 if ((skp == NULL) || (*skp == NULL)) 1346 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1347 else 1348 { 1349 sk= *skp; 1350 sk_SSL_CIPHER_zero(sk); 1351 } 1352 1353 for (i=0; i<num; i+=n) 1354 { 1355 /* Check for SCSV */ 1356 if (s->s3 && (n != 3 || !p[0]) && 1357 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) && 1358 (p[n-1] == (SSL3_CK_SCSV & 0xff))) 1359 { 1360 /* SCSV fatal if renegotiating */ 1361 if (s->new_session) 1362 { 1363 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING); 1364 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); 1365 goto err; 1366 } 1367 s->s3->send_connection_binding = 1; 1368 p += n; 1369#ifdef OPENSSL_RI_DEBUG 1370 fprintf(stderr, "SCSV received by server\n"); 1371#endif 1372 continue; 1373 } 1374 1375 c=ssl_get_cipher_by_char(s,p); 1376 p+=n; 1377 if (c != NULL) 1378 { 1379 if (!sk_SSL_CIPHER_push(sk,c)) 1380 { 1381 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1382 goto err; 1383 } 1384 } 1385 } 1386 1387 if (skp != NULL) 1388 *skp=sk; 1389 return(sk); 1390err: 1391 if ((skp == NULL) || (*skp == NULL)) 1392 sk_SSL_CIPHER_free(sk); 1393 return(NULL); 1394 } 1395 1396#ifndef OPENSSL_NO_TLSEXT 1397/** return a servername extension value if provided in Client Hello, or NULL. 1398 * So far, only host_name types are defined (RFC 3546). 1399 */ 1400 1401const char *SSL_get_servername(const SSL *s, const int type) 1402 { 1403 if (type != TLSEXT_NAMETYPE_host_name) 1404 return NULL; 1405 1406 return s->session && !s->tlsext_hostname ? 1407 s->session->tlsext_hostname : 1408 s->tlsext_hostname; 1409 } 1410 1411int SSL_get_servername_type(const SSL *s) 1412 { 1413 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname)) 1414 return TLSEXT_NAMETYPE_host_name; 1415 return -1; 1416 } 1417#endif 1418 1419unsigned long SSL_SESSION_hash(const SSL_SESSION *a) 1420 { 1421 unsigned long l; 1422 1423 l=(unsigned long) 1424 ((unsigned int) a->session_id[0] )| 1425 ((unsigned int) a->session_id[1]<< 8L)| 1426 ((unsigned long)a->session_id[2]<<16L)| 1427 ((unsigned long)a->session_id[3]<<24L); 1428 return(l); 1429 } 1430 1431/* NB: If this function (or indeed the hash function which uses a sort of 1432 * coarser function than this one) is changed, ensure 1433 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1434 * able to construct an SSL_SESSION that will collide with any existing session 1435 * with a matching session ID. */ 1436int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b) 1437 { 1438 if (a->ssl_version != b->ssl_version) 1439 return(1); 1440 if (a->session_id_length != b->session_id_length) 1441 return(1); 1442 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1443 } 1444 1445/* These wrapper functions should remain rather than redeclaring 1446 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1447 * variable. The reason is that the functions aren't static, they're exposed via 1448 * ssl.h. */ 1449static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *) 1450static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *) 1451 1452SSL_CTX *SSL_CTX_new(SSL_METHOD *meth) 1453 { 1454 SSL_CTX *ret=NULL; 1455 1456 if (meth == NULL) 1457 { 1458 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1459 return(NULL); 1460 } 1461 1462#ifdef OPENSSL_FIPS 1463 if (FIPS_mode() && (meth->version < TLS1_VERSION)) 1464 { 1465 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE); 1466 return NULL; 1467 } 1468#endif 1469 1470 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1471 { 1472 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1473 goto err; 1474 } 1475 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); 1476 if (ret == NULL) 1477 goto err; 1478 1479 memset(ret,0,sizeof(SSL_CTX)); 1480 1481 ret->method=meth; 1482 1483 ret->cert_store=NULL; 1484 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1485 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1486 ret->session_cache_head=NULL; 1487 ret->session_cache_tail=NULL; 1488 1489 /* We take the system default */ 1490 ret->session_timeout=meth->get_timeout(); 1491 1492 ret->new_session_cb=0; 1493 ret->remove_session_cb=0; 1494 ret->get_session_cb=0; 1495 ret->generate_session_id=0; 1496 1497 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1498 1499 ret->references=1; 1500 ret->quiet_shutdown=0; 1501 1502/* ret->cipher=NULL;*/ 1503/* ret->s2->challenge=NULL; 1504 ret->master_key=NULL; 1505 ret->key_arg=NULL; 1506 ret->s2->conn_id=NULL; */ 1507 1508 ret->info_callback=NULL; 1509 1510 ret->app_verify_callback=0; 1511 ret->app_verify_arg=NULL; 1512 1513 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT; 1514 ret->read_ahead=0; 1515 ret->msg_callback=0; 1516 ret->msg_callback_arg=NULL; 1517 ret->verify_mode=SSL_VERIFY_NONE; 1518#if 0 1519 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1520#endif 1521 ret->sid_ctx_length=0; 1522 ret->default_verify_callback=NULL; 1523 if ((ret->cert=ssl_cert_new()) == NULL) 1524 goto err; 1525 1526 ret->default_passwd_callback=0; 1527 ret->default_passwd_callback_userdata=NULL; 1528 ret->client_cert_cb=0; 1529 ret->app_gen_cookie_cb=0; 1530 ret->app_verify_cookie_cb=0; 1531 1532 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash), 1533 LHASH_COMP_FN(SSL_SESSION_cmp)); 1534 if (ret->sessions == NULL) goto err; 1535 ret->cert_store=X509_STORE_new(); 1536 if (ret->cert_store == NULL) goto err; 1537 1538 ssl_create_cipher_list(ret->method, 1539 &ret->cipher_list,&ret->cipher_list_by_id, 1540 SSL_DEFAULT_CIPHER_LIST); 1541 if (ret->cipher_list == NULL 1542 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1543 { 1544 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1545 goto err2; 1546 } 1547 1548 ret->param = X509_VERIFY_PARAM_new(); 1549 if (!ret->param) 1550 goto err; 1551 1552 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1553 { 1554 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1555 goto err2; 1556 } 1557 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1558 { 1559 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1560 goto err2; 1561 } 1562 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1563 { 1564 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1565 goto err2; 1566 } 1567 1568 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1569 goto err; 1570 1571 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 1572 1573 ret->extra_certs=NULL; 1574 /* No compression for DTLS */ 1575 if (meth->version != DTLS1_VERSION) 1576 ret->comp_methods=SSL_COMP_get_compression_methods(); 1577 1578#ifndef OPENSSL_NO_TLSEXT 1579 ret->tlsext_servername_callback = 0; 1580 ret->tlsext_servername_arg = NULL; 1581 /* Setup RFC4507 ticket keys */ 1582 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0) 1583 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) 1584 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) 1585 ret->options |= SSL_OP_NO_TICKET; 1586 1587 ret->tlsext_status_cb = 0; 1588 ret->tlsext_status_arg = NULL; 1589 1590#endif 1591 1592#ifndef OPENSSL_NO_ENGINE 1593 ret->client_cert_engine = NULL; 1594#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1595#define eng_strx(x) #x 1596#define eng_str(x) eng_strx(x) 1597 /* Use specific client engine automatically... ignore errors */ 1598 { 1599 ENGINE *eng; 1600 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1601 if (!eng) 1602 { 1603 ERR_clear_error(); 1604 ENGINE_load_builtin_engines(); 1605 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1606 } 1607 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1608 ERR_clear_error(); 1609 } 1610#endif 1611#endif 1612 /* Default is to connect to non-RI servers. When RI is more widely 1613 * deployed might change this. 1614 */ 1615 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1616 1617 return(ret); 1618err: 1619 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1620err2: 1621 if (ret != NULL) SSL_CTX_free(ret); 1622 return(NULL); 1623 } 1624 1625#if 0 1626static void SSL_COMP_free(SSL_COMP *comp) 1627 { OPENSSL_free(comp); } 1628#endif 1629 1630void SSL_CTX_free(SSL_CTX *a) 1631 { 1632 int i; 1633 1634 if (a == NULL) return; 1635 1636 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1637#ifdef REF_PRINT 1638 REF_PRINT("SSL_CTX",a); 1639#endif 1640 if (i > 0) return; 1641#ifdef REF_CHECK 1642 if (i < 0) 1643 { 1644 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1645 abort(); /* ok */ 1646 } 1647#endif 1648 1649 if (a->param) 1650 X509_VERIFY_PARAM_free(a->param); 1651 1652 /* 1653 * Free internal session cache. However: the remove_cb() may reference 1654 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1655 * after the sessions were flushed. 1656 * As the ex_data handling routines might also touch the session cache, 1657 * the most secure solution seems to be: empty (flush) the cache, then 1658 * free ex_data, then finally free the cache. 1659 * (See ticket [openssl.org #212].) 1660 */ 1661 if (a->sessions != NULL) 1662 SSL_CTX_flush_sessions(a,0); 1663 1664 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); 1665 1666 if (a->sessions != NULL) 1667 lh_free(a->sessions); 1668 1669 if (a->cert_store != NULL) 1670 X509_STORE_free(a->cert_store); 1671 if (a->cipher_list != NULL) 1672 sk_SSL_CIPHER_free(a->cipher_list); 1673 if (a->cipher_list_by_id != NULL) 1674 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1675 if (a->cert != NULL) 1676 ssl_cert_free(a->cert); 1677 if (a->client_CA != NULL) 1678 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1679 if (a->extra_certs != NULL) 1680 sk_X509_pop_free(a->extra_certs,X509_free); 1681#if 0 /* This should never be done, since it removes a global database */ 1682 if (a->comp_methods != NULL) 1683 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1684#else 1685 a->comp_methods = NULL; 1686#endif 1687#ifndef OPENSSL_NO_ENGINE 1688 if (a->client_cert_engine) 1689 ENGINE_finish(a->client_cert_engine); 1690#endif 1691 OPENSSL_free(a); 1692 } 1693 1694void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1695 { 1696 ctx->default_passwd_callback=cb; 1697 } 1698 1699void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1700 { 1701 ctx->default_passwd_callback_userdata=u; 1702 } 1703 1704void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg) 1705 { 1706 ctx->app_verify_callback=cb; 1707 ctx->app_verify_arg=arg; 1708 } 1709 1710void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1711 { 1712 ctx->verify_mode=mode; 1713 ctx->default_verify_callback=cb; 1714 } 1715 1716void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1717 { 1718 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1719 } 1720 1721void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) 1722 { 1723 CERT_PKEY *cpk; 1724 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1725 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1726 int rsa_tmp_export,dh_tmp_export,kl; 1727 unsigned long mask,emask; 1728 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size; 1729#ifndef OPENSSL_NO_ECDH 1730 int have_ecdh_tmp; 1731#endif 1732 X509 *x = NULL; 1733 EVP_PKEY *ecc_pkey = NULL; 1734 int signature_nid = 0; 1735 1736 if (c == NULL) return; 1737 1738 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1739 1740#ifndef OPENSSL_NO_RSA 1741 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1742 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1743 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1744#else 1745 rsa_tmp=rsa_tmp_export=0; 1746#endif 1747#ifndef OPENSSL_NO_DH 1748 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1749 dh_tmp_export=(c->dh_tmp_cb != NULL || 1750 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1751#else 1752 dh_tmp=dh_tmp_export=0; 1753#endif 1754 1755#ifndef OPENSSL_NO_ECDH 1756 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL); 1757#endif 1758 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1759 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1760 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1761 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1762 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1763 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1764 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1765 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1766 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1767 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1768 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1769/* FIX THIS EAY EAY EAY */ 1770 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1771 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1772 cpk= &(c->pkeys[SSL_PKEY_ECC]); 1773 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL); 1774 mask=0; 1775 emask=0; 1776 1777#ifdef CIPHER_DEBUG 1778 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1779 rsa_tmp,rsa_tmp_export,dh_tmp, 1780 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1781#endif 1782 1783 if (rsa_enc || (rsa_tmp && rsa_sign)) 1784 mask|=SSL_kRSA; 1785 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1786 emask|=SSL_kRSA; 1787 1788#if 0 1789 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1790 if ( (dh_tmp || dh_rsa || dh_dsa) && 1791 (rsa_enc || rsa_sign || dsa_sign)) 1792 mask|=SSL_kEDH; 1793 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1794 (rsa_enc || rsa_sign || dsa_sign)) 1795 emask|=SSL_kEDH; 1796#endif 1797 1798 if (dh_tmp_export) 1799 emask|=SSL_kEDH; 1800 1801 if (dh_tmp) 1802 mask|=SSL_kEDH; 1803 1804 if (dh_rsa) mask|=SSL_kDHr; 1805 if (dh_rsa_export) emask|=SSL_kDHr; 1806 1807 if (dh_dsa) mask|=SSL_kDHd; 1808 if (dh_dsa_export) emask|=SSL_kDHd; 1809 1810 if (rsa_enc || rsa_sign) 1811 { 1812 mask|=SSL_aRSA; 1813 emask|=SSL_aRSA; 1814 } 1815 1816 if (dsa_sign) 1817 { 1818 mask|=SSL_aDSS; 1819 emask|=SSL_aDSS; 1820 } 1821 1822 mask|=SSL_aNULL; 1823 emask|=SSL_aNULL; 1824 1825#ifndef OPENSSL_NO_KRB5 1826 mask|=SSL_kKRB5|SSL_aKRB5; 1827 emask|=SSL_kKRB5|SSL_aKRB5; 1828#endif 1829 1830 /* An ECC certificate may be usable for ECDH and/or 1831 * ECDSA cipher suites depending on the key usage extension. 1832 */ 1833 if (have_ecc_cert) 1834 { 1835 /* This call populates extension flags (ex_flags) */ 1836 x = (c->pkeys[SSL_PKEY_ECC]).x509; 1837 X509_check_purpose(x, -1, 0); 1838 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1839 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; 1840 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1841 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; 1842 ecc_pkey = X509_get_pubkey(x); 1843 ecc_pkey_size = (ecc_pkey != NULL) ? 1844 EVP_PKEY_bits(ecc_pkey) : 0; 1845 EVP_PKEY_free(ecc_pkey); 1846 if ((x->sig_alg) && (x->sig_alg->algorithm)) 1847 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 1848#ifndef OPENSSL_NO_ECDH 1849 if (ecdh_ok) 1850 { 1851 if ((signature_nid == NID_md5WithRSAEncryption) || 1852 (signature_nid == NID_md4WithRSAEncryption) || 1853 (signature_nid == NID_md2WithRSAEncryption)) 1854 { 1855 mask|=SSL_kECDH|SSL_aRSA; 1856 if (ecc_pkey_size <= 163) 1857 emask|=SSL_kECDH|SSL_aRSA; 1858 } 1859 if (signature_nid == NID_ecdsa_with_SHA1) 1860 { 1861 mask|=SSL_kECDH|SSL_aECDSA; 1862 if (ecc_pkey_size <= 163) 1863 emask|=SSL_kECDH|SSL_aECDSA; 1864 } 1865 } 1866#endif 1867#ifndef OPENSSL_NO_ECDSA 1868 if (ecdsa_ok) 1869 { 1870 mask|=SSL_aECDSA; 1871 emask|=SSL_aECDSA; 1872 } 1873#endif 1874 } 1875 1876#ifndef OPENSSL_NO_ECDH 1877 if (have_ecdh_tmp) 1878 { 1879 mask|=SSL_kECDHE; 1880 emask|=SSL_kECDHE; 1881 } 1882#endif 1883 c->mask=mask; 1884 c->export_mask=emask; 1885 c->valid=1; 1886 } 1887 1888/* This handy macro borrowed from crypto/x509v3/v3_purp.c */ 1889#define ku_reject(x, usage) \ 1890 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) 1891 1892int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs) 1893 { 1894 unsigned long alg = cs->algorithms; 1895 EVP_PKEY *pkey = NULL; 1896 int keysize = 0; 1897 int signature_nid = 0; 1898 1899 if (SSL_C_IS_EXPORT(cs)) 1900 { 1901 /* ECDH key length in export ciphers must be <= 163 bits */ 1902 pkey = X509_get_pubkey(x); 1903 if (pkey == NULL) return 0; 1904 keysize = EVP_PKEY_bits(pkey); 1905 EVP_PKEY_free(pkey); 1906 if (keysize > 163) return 0; 1907 } 1908 1909 /* This call populates the ex_flags field correctly */ 1910 X509_check_purpose(x, -1, 0); 1911 if ((x->sig_alg) && (x->sig_alg->algorithm)) 1912 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 1913 if (alg & SSL_kECDH) 1914 { 1915 /* key usage, if present, must allow key agreement */ 1916 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) 1917 { 1918 return 0; 1919 } 1920 if (alg & SSL_aECDSA) 1921 { 1922 /* signature alg must be ECDSA */ 1923 if (signature_nid != NID_ecdsa_with_SHA1) 1924 { 1925 return 0; 1926 } 1927 } 1928 if (alg & SSL_aRSA) 1929 { 1930 /* signature alg must be RSA */ 1931 if ((signature_nid != NID_md5WithRSAEncryption) && 1932 (signature_nid != NID_md4WithRSAEncryption) && 1933 (signature_nid != NID_md2WithRSAEncryption)) 1934 { 1935 return 0; 1936 } 1937 } 1938 } 1939 else if (alg & SSL_aECDSA) 1940 { 1941 /* key usage, if present, must allow signing */ 1942 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) 1943 { 1944 return 0; 1945 } 1946 } 1947 1948 return 1; /* all checks are ok */ 1949 } 1950 1951/* THIS NEEDS CLEANING UP */ 1952CERT_PKEY *ssl_get_server_send_pkey(const SSL *s) 1953 { 1954 unsigned long alg,kalg; 1955 CERT *c; 1956 int i; 1957 1958 c=s->cert; 1959 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 1960 alg=s->s3->tmp.new_cipher->algorithms; 1961 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1962 1963 if (kalg & SSL_kECDH) 1964 { 1965 /* we don't need to look at SSL_kECDHE 1966 * since no certificate is needed for 1967 * anon ECDH and for authenticated 1968 * ECDHE, the check for the auth 1969 * algorithm will set i correctly 1970 * NOTE: For ECDH-RSA, we need an ECC 1971 * not an RSA cert but for ECDHE-RSA 1972 * we need an RSA cert. Placing the 1973 * checks for SSL_kECDH before RSA 1974 * checks ensures the correct cert is chosen. 1975 */ 1976 i=SSL_PKEY_ECC; 1977 } 1978 else if (kalg & SSL_aECDSA) 1979 { 1980 i=SSL_PKEY_ECC; 1981 } 1982 else if (kalg & SSL_kDHr) 1983 i=SSL_PKEY_DH_RSA; 1984 else if (kalg & SSL_kDHd) 1985 i=SSL_PKEY_DH_DSA; 1986 else if (kalg & SSL_aDSS) 1987 i=SSL_PKEY_DSA_SIGN; 1988 else if (kalg & SSL_aRSA) 1989 { 1990 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1991 i=SSL_PKEY_RSA_SIGN; 1992 else 1993 i=SSL_PKEY_RSA_ENC; 1994 } 1995 else if (kalg & SSL_aKRB5) 1996 { 1997 /* VRS something else here? */ 1998 return(NULL); 1999 } 2000 else /* if (kalg & SSL_aNULL) */ 2001 { 2002 SSLerr(SSL_F_SSL_GET_SERVER_SEND_PKEY,ERR_R_INTERNAL_ERROR); 2003 return(NULL); 2004 } 2005 2006 return c->pkeys + i; 2007 } 2008 2009X509 *ssl_get_server_send_cert(const SSL *s) 2010 { 2011 CERT_PKEY *cpk; 2012 cpk = ssl_get_server_send_pkey(s); 2013 if (!cpk) 2014 return NULL; 2015 return cpk->x509; 2016 } 2017 2018EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher) 2019 { 2020 unsigned long alg; 2021 CERT *c; 2022 2023 alg=cipher->algorithms; 2024 c=s->cert; 2025 2026 if ((alg & SSL_aDSS) && 2027 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 2028 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 2029 else if (alg & SSL_aRSA) 2030 { 2031 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 2032 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 2033 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 2034 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 2035 else 2036 return(NULL); 2037 } 2038 else if ((alg & SSL_aECDSA) && 2039 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2040 return(c->pkeys[SSL_PKEY_ECC].privatekey); 2041 else /* if (alg & SSL_aNULL) */ 2042 { 2043 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR); 2044 return(NULL); 2045 } 2046 } 2047 2048void ssl_update_cache(SSL *s,int mode) 2049 { 2050 int i; 2051 2052 /* If the session_id_length is 0, we are not supposed to cache it, 2053 * and it would be rather hard to do anyway :-) */ 2054 if (s->session->session_id_length == 0) return; 2055 2056 i=s->ctx->session_cache_mode; 2057 if ((i & mode) && (!s->hit) 2058 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2059 || SSL_CTX_add_session(s->ctx,s->session)) 2060 && (s->ctx->new_session_cb != NULL)) 2061 { 2062 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 2063 if (!s->ctx->new_session_cb(s,s->session)) 2064 SSL_SESSION_free(s->session); 2065 } 2066 2067 /* auto flush every 255 connections */ 2068 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2069 ((i & mode) == mode)) 2070 { 2071 if ( (((mode & SSL_SESS_CACHE_CLIENT) 2072 ?s->ctx->stats.sess_connect_good 2073 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff) 2074 { 2075 SSL_CTX_flush_sessions(s->ctx,(unsigned long)time(NULL)); 2076 } 2077 } 2078 } 2079 2080SSL_METHOD *SSL_get_ssl_method(SSL *s) 2081 { 2082 return(s->method); 2083 } 2084 2085int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth) 2086 { 2087 int conn= -1; 2088 int ret=1; 2089 2090 if (s->method != meth) 2091 { 2092 if (s->handshake_func != NULL) 2093 conn=(s->handshake_func == s->method->ssl_connect); 2094 2095 if (s->method->version == meth->version) 2096 s->method=meth; 2097 else 2098 { 2099 s->method->ssl_free(s); 2100 s->method=meth; 2101 ret=s->method->ssl_new(s); 2102 } 2103 2104 if (conn == 1) 2105 s->handshake_func=meth->ssl_connect; 2106 else if (conn == 0) 2107 s->handshake_func=meth->ssl_accept; 2108 } 2109 return(ret); 2110 } 2111 2112int SSL_get_error(const SSL *s,int i) 2113 { 2114 int reason; 2115 unsigned long l; 2116 BIO *bio; 2117 2118 if (i > 0) return(SSL_ERROR_NONE); 2119 2120 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2121 * etc, where we do encode the error */ 2122 if ((l=ERR_peek_error()) != 0) 2123 { 2124 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2125 return(SSL_ERROR_SYSCALL); 2126 else 2127 return(SSL_ERROR_SSL); 2128 } 2129 2130 if ((i < 0) && SSL_want_read(s)) 2131 { 2132 bio=SSL_get_rbio(s); 2133 if (BIO_should_read(bio)) 2134 return(SSL_ERROR_WANT_READ); 2135 else if (BIO_should_write(bio)) 2136 /* This one doesn't make too much sense ... We never try 2137 * to write to the rbio, and an application program where 2138 * rbio and wbio are separate couldn't even know what it 2139 * should wait for. 2140 * However if we ever set s->rwstate incorrectly 2141 * (so that we have SSL_want_read(s) instead of 2142 * SSL_want_write(s)) and rbio and wbio *are* the same, 2143 * this test works around that bug; so it might be safer 2144 * to keep it. */ 2145 return(SSL_ERROR_WANT_WRITE); 2146 else if (BIO_should_io_special(bio)) 2147 { 2148 reason=BIO_get_retry_reason(bio); 2149 if (reason == BIO_RR_CONNECT) 2150 return(SSL_ERROR_WANT_CONNECT); 2151 else if (reason == BIO_RR_ACCEPT) 2152 return(SSL_ERROR_WANT_ACCEPT); 2153 else 2154 return(SSL_ERROR_SYSCALL); /* unknown */ 2155 } 2156 } 2157 2158 if ((i < 0) && SSL_want_write(s)) 2159 { 2160 bio=SSL_get_wbio(s); 2161 if (BIO_should_write(bio)) 2162 return(SSL_ERROR_WANT_WRITE); 2163 else if (BIO_should_read(bio)) 2164 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 2165 return(SSL_ERROR_WANT_READ); 2166 else if (BIO_should_io_special(bio)) 2167 { 2168 reason=BIO_get_retry_reason(bio); 2169 if (reason == BIO_RR_CONNECT) 2170 return(SSL_ERROR_WANT_CONNECT); 2171 else if (reason == BIO_RR_ACCEPT) 2172 return(SSL_ERROR_WANT_ACCEPT); 2173 else 2174 return(SSL_ERROR_SYSCALL); 2175 } 2176 } 2177 if ((i < 0) && SSL_want_x509_lookup(s)) 2178 { 2179 return(SSL_ERROR_WANT_X509_LOOKUP); 2180 } 2181 2182 if (i == 0) 2183 { 2184 if (s->version == SSL2_VERSION) 2185 { 2186 /* assume it is the socket being closed */ 2187 return(SSL_ERROR_ZERO_RETURN); 2188 } 2189 else 2190 { 2191 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2192 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2193 return(SSL_ERROR_ZERO_RETURN); 2194 } 2195 } 2196 return(SSL_ERROR_SYSCALL); 2197 } 2198 2199int SSL_do_handshake(SSL *s) 2200 { 2201 int ret=1; 2202 2203 if (s->handshake_func == NULL) 2204 { 2205 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 2206 return(-1); 2207 } 2208 2209 s->method->ssl_renegotiate_check(s); 2210 2211 if (SSL_in_init(s) || SSL_in_before(s)) 2212 { 2213 ret=s->handshake_func(s); 2214 } 2215 return(ret); 2216 } 2217 2218/* For the next 2 functions, SSL_clear() sets shutdown and so 2219 * one of these calls will reset it */ 2220void SSL_set_accept_state(SSL *s) 2221 { 2222 s->server=1; 2223 s->shutdown=0; 2224 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 2225 s->handshake_func=s->method->ssl_accept; 2226 /* clear the current cipher */ 2227 ssl_clear_cipher_ctx(s); 2228 } 2229 2230void SSL_set_connect_state(SSL *s) 2231 { 2232 s->server=0; 2233 s->shutdown=0; 2234 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 2235 s->handshake_func=s->method->ssl_connect; 2236 /* clear the current cipher */ 2237 ssl_clear_cipher_ctx(s); 2238 } 2239 2240int ssl_undefined_function(SSL *s) 2241 { 2242 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2243 return(0); 2244 } 2245 2246int ssl_undefined_void_function(void) 2247 { 2248 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2249 return(0); 2250 } 2251 2252int ssl_undefined_const_function(const SSL *s) 2253 { 2254 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2255 return(0); 2256 } 2257 2258SSL_METHOD *ssl_bad_method(int ver) 2259 { 2260 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2261 return(NULL); 2262 } 2263 2264const char *SSL_get_version(const SSL *s) 2265 { 2266 if (s->version == TLS1_VERSION) 2267 return("TLSv1"); 2268 else if (s->version == SSL3_VERSION) 2269 return("SSLv3"); 2270 else if (s->version == SSL2_VERSION) 2271 return("SSLv2"); 2272 else 2273 return("unknown"); 2274 } 2275 2276SSL *SSL_dup(SSL *s) 2277 { 2278 STACK_OF(X509_NAME) *sk; 2279 X509_NAME *xn; 2280 SSL *ret; 2281 int i; 2282 2283 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2284 return(NULL); 2285 2286 ret->version = s->version; 2287 ret->type = s->type; 2288 ret->method = s->method; 2289 2290 if (s->session != NULL) 2291 { 2292 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 2293 SSL_copy_session_id(ret,s); 2294 } 2295 else 2296 { 2297 /* No session has been established yet, so we have to expect 2298 * that s->cert or ret->cert will be changed later -- 2299 * they should not both point to the same object, 2300 * and thus we can't use SSL_copy_session_id. */ 2301 2302 ret->method->ssl_free(ret); 2303 ret->method = s->method; 2304 ret->method->ssl_new(ret); 2305 2306 if (s->cert != NULL) 2307 { 2308 if (ret->cert != NULL) 2309 { 2310 ssl_cert_free(ret->cert); 2311 } 2312 ret->cert = ssl_cert_dup(s->cert); 2313 if (ret->cert == NULL) 2314 goto err; 2315 } 2316 2317 SSL_set_session_id_context(ret, 2318 s->sid_ctx, s->sid_ctx_length); 2319 } 2320 2321 ret->options=s->options; 2322 ret->mode=s->mode; 2323 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s)); 2324 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 2325 ret->msg_callback = s->msg_callback; 2326 ret->msg_callback_arg = s->msg_callback_arg; 2327 SSL_set_verify(ret,SSL_get_verify_mode(s), 2328 SSL_get_verify_callback(s)); 2329 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 2330 ret->generate_session_id = s->generate_session_id; 2331 2332 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 2333 2334 ret->debug=s->debug; 2335 2336 /* copy app data, a little dangerous perhaps */ 2337 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) 2338 goto err; 2339 2340 /* setup rbio, and wbio */ 2341 if (s->rbio != NULL) 2342 { 2343 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2344 goto err; 2345 } 2346 if (s->wbio != NULL) 2347 { 2348 if (s->wbio != s->rbio) 2349 { 2350 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2351 goto err; 2352 } 2353 else 2354 ret->wbio=ret->rbio; 2355 } 2356 ret->rwstate = s->rwstate; 2357 ret->in_handshake = s->in_handshake; 2358 ret->handshake_func = s->handshake_func; 2359 ret->server = s->server; 2360 ret->new_session = s->new_session; 2361 ret->quiet_shutdown = s->quiet_shutdown; 2362 ret->shutdown=s->shutdown; 2363 ret->state=s->state; /* SSL_dup does not really work at any state, though */ 2364 ret->rstate=s->rstate; 2365 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */ 2366 ret->hit=s->hit; 2367 2368 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2369 2370 /* dup the cipher_list and cipher_list_by_id stacks */ 2371 if (s->cipher_list != NULL) 2372 { 2373 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2374 goto err; 2375 } 2376 if (s->cipher_list_by_id != NULL) 2377 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 2378 == NULL) 2379 goto err; 2380 2381 /* Dup the client_CA list */ 2382 if (s->client_CA != NULL) 2383 { 2384 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 2385 ret->client_CA=sk; 2386 for (i=0; i<sk_X509_NAME_num(sk); i++) 2387 { 2388 xn=sk_X509_NAME_value(sk,i); 2389 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 2390 { 2391 X509_NAME_free(xn); 2392 goto err; 2393 } 2394 } 2395 } 2396 2397 if (0) 2398 { 2399err: 2400 if (ret != NULL) SSL_free(ret); 2401 ret=NULL; 2402 } 2403 return(ret); 2404 } 2405 2406void ssl_clear_cipher_ctx(SSL *s) 2407 { 2408 if (s->enc_read_ctx != NULL) 2409 { 2410 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 2411 OPENSSL_free(s->enc_read_ctx); 2412 s->enc_read_ctx=NULL; 2413 } 2414 if (s->enc_write_ctx != NULL) 2415 { 2416 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 2417 OPENSSL_free(s->enc_write_ctx); 2418 s->enc_write_ctx=NULL; 2419 } 2420#ifndef OPENSSL_NO_COMP 2421 if (s->expand != NULL) 2422 { 2423 COMP_CTX_free(s->expand); 2424 s->expand=NULL; 2425 } 2426 if (s->compress != NULL) 2427 { 2428 COMP_CTX_free(s->compress); 2429 s->compress=NULL; 2430 } 2431#endif 2432 } 2433 2434/* Fix this function so that it takes an optional type parameter */ 2435X509 *SSL_get_certificate(const SSL *s) 2436 { 2437 if (s->cert != NULL) 2438 return(s->cert->key->x509); 2439 else 2440 return(NULL); 2441 } 2442 2443/* Fix this function so that it takes an optional type parameter */ 2444EVP_PKEY *SSL_get_privatekey(SSL *s) 2445 { 2446 if (s->cert != NULL) 2447 return(s->cert->key->privatekey); 2448 else 2449 return(NULL); 2450 } 2451 2452SSL_CIPHER *SSL_get_current_cipher(const SSL *s) 2453 { 2454 if ((s->session != NULL) && (s->session->cipher != NULL)) 2455 return(s->session->cipher); 2456 return(NULL); 2457 } 2458#ifdef OPENSSL_NO_COMP 2459const void *SSL_get_current_compression(SSL *s) 2460 { 2461 return NULL; 2462 } 2463const void *SSL_get_current_expansion(SSL *s) 2464 { 2465 return NULL; 2466 } 2467#else 2468 2469const COMP_METHOD *SSL_get_current_compression(SSL *s) 2470 { 2471 if (s->compress != NULL) 2472 return(s->compress->meth); 2473 return(NULL); 2474 } 2475 2476const COMP_METHOD *SSL_get_current_expansion(SSL *s) 2477 { 2478 if (s->expand != NULL) 2479 return(s->expand->meth); 2480 return(NULL); 2481 } 2482#endif 2483 2484int ssl_init_wbio_buffer(SSL *s,int push) 2485 { 2486 BIO *bbio; 2487 2488 if (s->bbio == NULL) 2489 { 2490 bbio=BIO_new(BIO_f_buffer()); 2491 if (bbio == NULL) return(0); 2492 s->bbio=bbio; 2493 } 2494 else 2495 { 2496 bbio=s->bbio; 2497 if (s->bbio == s->wbio) 2498 s->wbio=BIO_pop(s->wbio); 2499 } 2500 (void)BIO_reset(bbio); 2501/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2502 if (!BIO_set_read_buffer_size(bbio,1)) 2503 { 2504 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 2505 return(0); 2506 } 2507 if (push) 2508 { 2509 if (s->wbio != bbio) 2510 s->wbio=BIO_push(bbio,s->wbio); 2511 } 2512 else 2513 { 2514 if (s->wbio == bbio) 2515 s->wbio=BIO_pop(bbio); 2516 } 2517 return(1); 2518 } 2519 2520void ssl_free_wbio_buffer(SSL *s) 2521 { 2522 if (s->bbio == NULL) return; 2523 2524 if (s->bbio == s->wbio) 2525 { 2526 /* remove buffering */ 2527 s->wbio=BIO_pop(s->wbio); 2528#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */ 2529 assert(s->wbio != NULL); 2530#endif 2531 } 2532 BIO_free(s->bbio); 2533 s->bbio=NULL; 2534 } 2535 2536void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 2537 { 2538 ctx->quiet_shutdown=mode; 2539 } 2540 2541int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2542 { 2543 return(ctx->quiet_shutdown); 2544 } 2545 2546void SSL_set_quiet_shutdown(SSL *s,int mode) 2547 { 2548 s->quiet_shutdown=mode; 2549 } 2550 2551int SSL_get_quiet_shutdown(const SSL *s) 2552 { 2553 return(s->quiet_shutdown); 2554 } 2555 2556void SSL_set_shutdown(SSL *s,int mode) 2557 { 2558 s->shutdown=mode; 2559 } 2560 2561int SSL_get_shutdown(const SSL *s) 2562 { 2563 return(s->shutdown); 2564 } 2565 2566int SSL_version(const SSL *s) 2567 { 2568 return(s->version); 2569 } 2570 2571SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) 2572 { 2573 return(ssl->ctx); 2574 } 2575 2576SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2577 { 2578 if (ssl->ctx == ctx) 2579 return ssl->ctx; 2580#ifndef OPENSSL_NO_TLSEXT 2581 if (ctx == NULL) 2582 ctx = ssl->initial_ctx; 2583#endif 2584 if (ssl->cert != NULL) 2585 ssl_cert_free(ssl->cert); 2586 ssl->cert = ssl_cert_dup(ctx->cert); 2587 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 2588 if (ssl->ctx != NULL) 2589 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2590 ssl->ctx = ctx; 2591 return(ssl->ctx); 2592 } 2593 2594#ifndef OPENSSL_NO_STDIO 2595int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2596 { 2597 return(X509_STORE_set_default_paths(ctx->cert_store)); 2598 } 2599 2600int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2601 const char *CApath) 2602 { 2603 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 2604 } 2605#endif 2606 2607void SSL_set_info_callback(SSL *ssl, 2608 void (*cb)(const SSL *ssl,int type,int val)) 2609 { 2610 ssl->info_callback=cb; 2611 } 2612 2613/* One compiler (Diab DCC) doesn't like argument names in returned 2614 function pointer. */ 2615void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/) 2616 { 2617 return ssl->info_callback; 2618 } 2619 2620int SSL_state(const SSL *ssl) 2621 { 2622 return(ssl->state); 2623 } 2624 2625void SSL_set_verify_result(SSL *ssl,long arg) 2626 { 2627 ssl->verify_result=arg; 2628 } 2629 2630long SSL_get_verify_result(const SSL *ssl) 2631 { 2632 return(ssl->verify_result); 2633 } 2634 2635int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2636 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2637 { 2638 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2639 new_func, dup_func, free_func); 2640 } 2641 2642int SSL_set_ex_data(SSL *s,int idx,void *arg) 2643 { 2644 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2645 } 2646 2647void *SSL_get_ex_data(const SSL *s,int idx) 2648 { 2649 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2650 } 2651 2652int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2653 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2654 { 2655 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2656 new_func, dup_func, free_func); 2657 } 2658 2659int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 2660 { 2661 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2662 } 2663 2664void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx) 2665 { 2666 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2667 } 2668 2669int ssl_ok(SSL *s) 2670 { 2671 return(1); 2672 } 2673 2674X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2675 { 2676 return(ctx->cert_store); 2677 } 2678 2679void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 2680 { 2681 if (ctx->cert_store != NULL) 2682 X509_STORE_free(ctx->cert_store); 2683 ctx->cert_store=store; 2684 } 2685 2686int SSL_want(const SSL *s) 2687 { 2688 return(s->rwstate); 2689 } 2690 2691/*! 2692 * \brief Set the callback for generating temporary RSA keys. 2693 * \param ctx the SSL context. 2694 * \param cb the callback 2695 */ 2696 2697#ifndef OPENSSL_NO_RSA 2698void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2699 int is_export, 2700 int keylength)) 2701 { 2702 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2703 } 2704 2705void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2706 int is_export, 2707 int keylength)) 2708 { 2709 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2710 } 2711#endif 2712 2713#ifdef DOXYGEN 2714/*! 2715 * \brief The RSA temporary key callback function. 2716 * \param ssl the SSL session. 2717 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2718 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2719 * of the required key in bits. 2720 * \return the temporary RSA key. 2721 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2722 */ 2723 2724RSA *cb(SSL *ssl,int is_export,int keylength) 2725 {} 2726#endif 2727 2728/*! 2729 * \brief Set the callback for generating temporary DH keys. 2730 * \param ctx the SSL context. 2731 * \param dh the callback 2732 */ 2733 2734#ifndef OPENSSL_NO_DH 2735void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2736 int keylength)) 2737 { 2738 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2739 } 2740 2741void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2742 int keylength)) 2743 { 2744 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2745 } 2746#endif 2747 2748#ifndef OPENSSL_NO_ECDH 2749void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2750 int keylength)) 2751 { 2752 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2753 } 2754 2755void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2756 int keylength)) 2757 { 2758 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2759 } 2760#endif 2761 2762 2763void 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)) 2764 { 2765 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2766 } 2767void 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)) 2768 { 2769 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2770 } 2771 2772 2773 2774#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16) 2775#include "../crypto/bio/bss_file.c" 2776#endif 2777 2778IMPLEMENT_STACK_OF(SSL_CIPHER) 2779IMPLEMENT_STACK_OF(SSL_COMP) 2780