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 */ 113 114 115#ifdef REF_CHECK 116# include <assert.h> 117#endif 118#include <stdio.h> 119#include "ssl_locl.h" 120#include "kssl_lcl.h" 121#include <openssl/objects.h> 122#include <openssl/lhash.h> 123#include <openssl/x509v3.h> 124#include <openssl/fips.h> 125 126const char *SSL_version_str=OPENSSL_VERSION_TEXT; 127 128OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={ 129 /* evil casts, but these functions are only called if there's a library bug */ 130 (int (*)(SSL *,int))ssl_undefined_function, 131 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, 132 ssl_undefined_function, 133 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function, 134 (int (*)(SSL*, int))ssl_undefined_function, 135 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function 136 }; 137 138int SSL_clear(SSL *s) 139 { 140 141 if (s->method == NULL) 142 { 143 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED); 144 return(0); 145 } 146 147 if (ssl_clear_bad_session(s)) 148 { 149 SSL_SESSION_free(s->session); 150 s->session=NULL; 151 } 152 153 s->error=0; 154 s->hit=0; 155 s->shutdown=0; 156 157#if 0 /* Disabled since version 1.10 of this file (early return not 158 * needed because SSL_clear is not called when doing renegotiation) */ 159 /* This is set if we are doing dynamic renegotiation so keep 160 * the old cipher. It is sort of a SSL_clear_lite :-) */ 161 if (s->new_session) return(1); 162#else 163 if (s->new_session) 164 { 165 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR); 166 return 0; 167 } 168#endif 169 170 s->type=0; 171 172 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT); 173 174 s->version=s->method->version; 175 s->client_version=s->version; 176 s->rwstate=SSL_NOTHING; 177 s->rstate=SSL_ST_READ_HEADER; 178#if 0 179 s->read_ahead=s->ctx->read_ahead; 180#endif 181 182 if (s->init_buf != NULL) 183 { 184 BUF_MEM_free(s->init_buf); 185 s->init_buf=NULL; 186 } 187 188 ssl_clear_cipher_ctx(s); 189 190 s->first_packet=0; 191 192#if 1 193 /* Check to see if we were changed into a different method, if 194 * so, revert back if we are not doing session-id reuse. */ 195 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method)) 196 { 197 s->method->ssl_free(s); 198 s->method=s->ctx->method; 199 if (!s->method->ssl_new(s)) 200 return(0); 201 } 202 else 203#endif 204 s->method->ssl_clear(s); 205 return(1); 206 } 207 208/** Used to change an SSL_CTXs default SSL method type */ 209int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth) 210 { 211 STACK_OF(SSL_CIPHER) *sk; 212 213 ctx->method=meth; 214 215 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list), 216 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST); 217 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) 218 { 219 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 220 return(0); 221 } 222 return(1); 223 } 224 225SSL *SSL_new(SSL_CTX *ctx) 226 { 227 SSL *s; 228 229 if (ctx == NULL) 230 { 231 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX); 232 return(NULL); 233 } 234 if (ctx->method == NULL) 235 { 236 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 237 return(NULL); 238 } 239 240 s=(SSL *)OPENSSL_malloc(sizeof(SSL)); 241 if (s == NULL) goto err; 242 memset(s,0,sizeof(SSL)); 243 244#ifndef OPENSSL_NO_KRB5 245 s->kssl_ctx = kssl_ctx_new(); 246#endif /* OPENSSL_NO_KRB5 */ 247 248 s->options=ctx->options; 249 s->mode=ctx->mode; 250 s->max_cert_list=ctx->max_cert_list; 251 252 if (ctx->cert != NULL) 253 { 254 /* Earlier library versions used to copy the pointer to 255 * the CERT, not its contents; only when setting new 256 * parameters for the per-SSL copy, ssl_cert_new would be 257 * called (and the direct reference to the per-SSL_CTX 258 * settings would be lost, but those still were indirectly 259 * accessed for various purposes, and for that reason they 260 * used to be known as s->ctx->default_cert). 261 * Now we don't look at the SSL_CTX's CERT after having 262 * duplicated it once. */ 263 264 s->cert = ssl_cert_dup(ctx->cert); 265 if (s->cert == NULL) 266 goto err; 267 } 268 else 269 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 270 271 s->read_ahead=ctx->read_ahead; 272 s->msg_callback=ctx->msg_callback; 273 s->msg_callback_arg=ctx->msg_callback_arg; 274 s->verify_mode=ctx->verify_mode; 275 s->verify_depth=ctx->verify_depth; 276 s->sid_ctx_length=ctx->sid_ctx_length; 277 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 278 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx)); 279 s->verify_callback=ctx->default_verify_callback; 280 s->generate_session_id=ctx->generate_session_id; 281 s->purpose = ctx->purpose; 282 s->trust = ctx->trust; 283 s->quiet_shutdown=ctx->quiet_shutdown; 284 285 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 286 s->ctx=ctx; 287 288 s->verify_result=X509_V_OK; 289 290 s->method=ctx->method; 291 292 if (!s->method->ssl_new(s)) 293 goto err; 294 295 s->references=1; 296 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1; 297 298 SSL_clear(s); 299 300 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 301 302 return(s); 303err: 304 if (s != NULL) 305 { 306 if (s->cert != NULL) 307 ssl_cert_free(s->cert); 308 if (s->ctx != NULL) 309 SSL_CTX_free(s->ctx); /* decrement reference count */ 310 OPENSSL_free(s); 311 } 312 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE); 313 return(NULL); 314 } 315 316int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx, 317 unsigned int sid_ctx_len) 318 { 319 if(sid_ctx_len > sizeof ctx->sid_ctx) 320 { 321 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 322 return 0; 323 } 324 ctx->sid_ctx_length=sid_ctx_len; 325 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len); 326 327 return 1; 328 } 329 330int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx, 331 unsigned int sid_ctx_len) 332 { 333 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 334 { 335 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 336 return 0; 337 } 338 ssl->sid_ctx_length=sid_ctx_len; 339 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len); 340 341 return 1; 342 } 343 344int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 345 { 346 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 347 ctx->generate_session_id = cb; 348 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 349 return 1; 350 } 351 352int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 353 { 354 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 355 ssl->generate_session_id = cb; 356 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 357 return 1; 358 } 359 360int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 361 unsigned int id_len) 362 { 363 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how 364 * we can "construct" a session to give us the desired check - ie. to 365 * find if there's a session in the hash table that would conflict with 366 * any new session built out of this id/id_len and the ssl_version in 367 * use by this SSL. */ 368 SSL_SESSION r, *p; 369 370 if(id_len > sizeof r.session_id) 371 return 0; 372 373 r.ssl_version = ssl->version; 374 r.session_id_length = id_len; 375 memcpy(r.session_id, id, id_len); 376 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a 377 * callback is calling us to check the uniqueness of a shorter ID, it 378 * must be compared as a padded-out ID because that is what it will be 379 * converted to when the callback has finished choosing it. */ 380 if((r.ssl_version == SSL2_VERSION) && 381 (id_len < SSL2_SSL_SESSION_ID_LENGTH)) 382 { 383 memset(r.session_id + id_len, 0, 384 SSL2_SSL_SESSION_ID_LENGTH - id_len); 385 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH; 386 } 387 388 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 389 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r); 390 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 391 return (p != NULL); 392 } 393 394int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 395 { 396 return X509_PURPOSE_set(&s->purpose, purpose); 397 } 398 399int SSL_set_purpose(SSL *s, int purpose) 400 { 401 return X509_PURPOSE_set(&s->purpose, purpose); 402 } 403 404int SSL_CTX_set_trust(SSL_CTX *s, int trust) 405 { 406 return X509_TRUST_set(&s->trust, trust); 407 } 408 409int SSL_set_trust(SSL *s, int trust) 410 { 411 return X509_TRUST_set(&s->trust, trust); 412 } 413 414void SSL_free(SSL *s) 415 { 416 int i; 417 418 if(s == NULL) 419 return; 420 421 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL); 422#ifdef REF_PRINT 423 REF_PRINT("SSL",s); 424#endif 425 if (i > 0) return; 426#ifdef REF_CHECK 427 if (i < 0) 428 { 429 fprintf(stderr,"SSL_free, bad reference count\n"); 430 abort(); /* ok */ 431 } 432#endif 433 434 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 435 436 if (s->bbio != NULL) 437 { 438 /* If the buffering BIO is in place, pop it off */ 439 if (s->bbio == s->wbio) 440 { 441 s->wbio=BIO_pop(s->wbio); 442 } 443 BIO_free(s->bbio); 444 s->bbio=NULL; 445 } 446 if (s->rbio != NULL) 447 BIO_free_all(s->rbio); 448 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 449 BIO_free_all(s->wbio); 450 451 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf); 452 453 /* add extra stuff */ 454 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list); 455 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id); 456 457 /* Make the next call work :-) */ 458 if (s->session != NULL) 459 { 460 ssl_clear_bad_session(s); 461 SSL_SESSION_free(s->session); 462 } 463 464 ssl_clear_cipher_ctx(s); 465 466 if (s->cert != NULL) ssl_cert_free(s->cert); 467 /* Free up if allocated */ 468 469 if (s->ctx) SSL_CTX_free(s->ctx); 470 471 if (s->client_CA != NULL) 472 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free); 473 474 if (s->method != NULL) s->method->ssl_free(s); 475 476#ifndef OPENSSL_NO_KRB5 477 if (s->kssl_ctx != NULL) 478 kssl_ctx_free(s->kssl_ctx); 479#endif /* OPENSSL_NO_KRB5 */ 480 481 OPENSSL_free(s); 482 } 483 484void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio) 485 { 486 /* If the output buffering BIO is still in place, remove it 487 */ 488 if (s->bbio != NULL) 489 { 490 if (s->wbio == s->bbio) 491 { 492 s->wbio=s->wbio->next_bio; 493 s->bbio->next_bio=NULL; 494 } 495 } 496 if ((s->rbio != NULL) && (s->rbio != rbio)) 497 BIO_free_all(s->rbio); 498 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 499 BIO_free_all(s->wbio); 500 s->rbio=rbio; 501 s->wbio=wbio; 502 } 503 504BIO *SSL_get_rbio(SSL *s) 505 { return(s->rbio); } 506 507BIO *SSL_get_wbio(SSL *s) 508 { return(s->wbio); } 509 510int SSL_get_fd(SSL *s) 511 { 512 return(SSL_get_rfd(s)); 513 } 514 515int SSL_get_rfd(SSL *s) 516 { 517 int ret= -1; 518 BIO *b,*r; 519 520 b=SSL_get_rbio(s); 521 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 522 if (r != NULL) 523 BIO_get_fd(r,&ret); 524 return(ret); 525 } 526 527int SSL_get_wfd(SSL *s) 528 { 529 int ret= -1; 530 BIO *b,*r; 531 532 b=SSL_get_wbio(s); 533 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 534 if (r != NULL) 535 BIO_get_fd(r,&ret); 536 return(ret); 537 } 538 539#ifndef OPENSSL_NO_SOCK 540int SSL_set_fd(SSL *s,int fd) 541 { 542 int ret=0; 543 BIO *bio=NULL; 544 545 bio=BIO_new(BIO_s_socket()); 546 547 if (bio == NULL) 548 { 549 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 550 goto err; 551 } 552 BIO_set_fd(bio,fd,BIO_NOCLOSE); 553 SSL_set_bio(s,bio,bio); 554 ret=1; 555err: 556 return(ret); 557 } 558 559int SSL_set_wfd(SSL *s,int fd) 560 { 561 int ret=0; 562 BIO *bio=NULL; 563 564 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 565 || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 566 { 567 bio=BIO_new(BIO_s_socket()); 568 569 if (bio == NULL) 570 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 571 BIO_set_fd(bio,fd,BIO_NOCLOSE); 572 SSL_set_bio(s,SSL_get_rbio(s),bio); 573 } 574 else 575 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 576 ret=1; 577err: 578 return(ret); 579 } 580 581int SSL_set_rfd(SSL *s,int fd) 582 { 583 int ret=0; 584 BIO *bio=NULL; 585 586 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 587 || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 588 { 589 bio=BIO_new(BIO_s_socket()); 590 591 if (bio == NULL) 592 { 593 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 594 goto err; 595 } 596 BIO_set_fd(bio,fd,BIO_NOCLOSE); 597 SSL_set_bio(s,bio,SSL_get_wbio(s)); 598 } 599 else 600 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 601 ret=1; 602err: 603 return(ret); 604 } 605#endif 606 607 608/* return length of latest Finished message we sent, copy to 'buf' */ 609size_t SSL_get_finished(SSL *s, void *buf, size_t count) 610 { 611 size_t ret = 0; 612 613 if (s->s3 != NULL) 614 { 615 ret = s->s3->tmp.finish_md_len; 616 if (count > ret) 617 count = ret; 618 memcpy(buf, s->s3->tmp.finish_md, count); 619 } 620 return ret; 621 } 622 623/* return length of latest Finished message we expected, copy to 'buf' */ 624size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count) 625 { 626 size_t ret = 0; 627 628 if (s->s3 != NULL) 629 { 630 ret = s->s3->tmp.peer_finish_md_len; 631 if (count > ret) 632 count = ret; 633 memcpy(buf, s->s3->tmp.peer_finish_md, count); 634 } 635 return ret; 636 } 637 638 639int SSL_get_verify_mode(SSL *s) 640 { 641 return(s->verify_mode); 642 } 643 644int SSL_get_verify_depth(SSL *s) 645 { 646 return(s->verify_depth); 647 } 648 649int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *) 650 { 651 return(s->verify_callback); 652 } 653 654int SSL_CTX_get_verify_mode(SSL_CTX *ctx) 655 { 656 return(ctx->verify_mode); 657 } 658 659int SSL_CTX_get_verify_depth(SSL_CTX *ctx) 660 { 661 return(ctx->verify_depth); 662 } 663 664int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *) 665 { 666 return(ctx->default_verify_callback); 667 } 668 669void SSL_set_verify(SSL *s,int mode, 670 int (*callback)(int ok,X509_STORE_CTX *ctx)) 671 { 672 s->verify_mode=mode; 673 if (callback != NULL) 674 s->verify_callback=callback; 675 } 676 677void SSL_set_verify_depth(SSL *s,int depth) 678 { 679 s->verify_depth=depth; 680 } 681 682void SSL_set_read_ahead(SSL *s,int yes) 683 { 684 s->read_ahead=yes; 685 } 686 687int SSL_get_read_ahead(SSL *s) 688 { 689 return(s->read_ahead); 690 } 691 692int SSL_pending(SSL *s) 693 { 694 /* SSL_pending cannot work properly if read-ahead is enabled 695 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 696 * and it is impossible to fix since SSL_pending cannot report 697 * errors that may be observed while scanning the new data. 698 * (Note that SSL_pending() is often used as a boolean value, 699 * so we'd better not return -1.) 700 */ 701 return(s->method->ssl_pending(s)); 702 } 703 704X509 *SSL_get_peer_certificate(SSL *s) 705 { 706 X509 *r; 707 708 if ((s == NULL) || (s->session == NULL)) 709 r=NULL; 710 else 711 r=s->session->peer; 712 713 if (r == NULL) return(r); 714 715 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 716 717 return(r); 718 } 719 720STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s) 721 { 722 STACK_OF(X509) *r; 723 724 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 725 r=NULL; 726 else 727 r=s->session->sess_cert->cert_chain; 728 729 /* If we are a client, cert_chain includes the peer's own 730 * certificate; if we are a server, it does not. */ 731 732 return(r); 733 } 734 735/* Now in theory, since the calling process own 't' it should be safe to 736 * modify. We need to be able to read f without being hassled */ 737void SSL_copy_session_id(SSL *t,SSL *f) 738 { 739 CERT *tmp; 740 741 /* Do we need to to SSL locking? */ 742 SSL_set_session(t,SSL_get_session(f)); 743 744 /* what if we are setup as SSLv2 but want to talk SSLv3 or 745 * vice-versa */ 746 if (t->method != f->method) 747 { 748 t->method->ssl_free(t); /* cleanup current */ 749 t->method=f->method; /* change method */ 750 t->method->ssl_new(t); /* setup new */ 751 } 752 753 tmp=t->cert; 754 if (f->cert != NULL) 755 { 756 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 757 t->cert=f->cert; 758 } 759 else 760 t->cert=NULL; 761 if (tmp != NULL) ssl_cert_free(tmp); 762 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length); 763 } 764 765/* Fix this so it checks all the valid key/cert options */ 766int SSL_CTX_check_private_key(SSL_CTX *ctx) 767 { 768 if ( (ctx == NULL) || 769 (ctx->cert == NULL) || 770 (ctx->cert->key->x509 == NULL)) 771 { 772 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 773 return(0); 774 } 775 if (ctx->cert->key->privatekey == NULL) 776 { 777 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 778 return(0); 779 } 780 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 781 } 782 783/* Fix this function so that it takes an optional type parameter */ 784int SSL_check_private_key(SSL *ssl) 785 { 786 if (ssl == NULL) 787 { 788 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 789 return(0); 790 } 791 if (ssl->cert == NULL) 792 { 793 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 794 return 0; 795 } 796 if (ssl->cert->key->x509 == NULL) 797 { 798 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 799 return(0); 800 } 801 if (ssl->cert->key->privatekey == NULL) 802 { 803 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 804 return(0); 805 } 806 return(X509_check_private_key(ssl->cert->key->x509, 807 ssl->cert->key->privatekey)); 808 } 809 810int SSL_accept(SSL *s) 811 { 812 if (s->handshake_func == 0) 813 /* Not properly initialized yet */ 814 SSL_set_accept_state(s); 815 816 return(s->method->ssl_accept(s)); 817 } 818 819int SSL_connect(SSL *s) 820 { 821 if (s->handshake_func == 0) 822 /* Not properly initialized yet */ 823 SSL_set_connect_state(s); 824 825 return(s->method->ssl_connect(s)); 826 } 827 828long SSL_get_default_timeout(SSL *s) 829 { 830 return(s->method->get_timeout()); 831 } 832 833int SSL_read(SSL *s,void *buf,int num) 834 { 835 if (s->handshake_func == 0) 836 { 837 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 838 return -1; 839 } 840 841 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 842 { 843 s->rwstate=SSL_NOTHING; 844 return(0); 845 } 846 return(s->method->ssl_read(s,buf,num)); 847 } 848 849int SSL_peek(SSL *s,void *buf,int num) 850 { 851 if (s->handshake_func == 0) 852 { 853 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 854 return -1; 855 } 856 857 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 858 { 859 return(0); 860 } 861 return(s->method->ssl_peek(s,buf,num)); 862 } 863 864int SSL_write(SSL *s,const void *buf,int num) 865 { 866 if (s->handshake_func == 0) 867 { 868 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 869 return -1; 870 } 871 872 if (s->shutdown & SSL_SENT_SHUTDOWN) 873 { 874 s->rwstate=SSL_NOTHING; 875 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 876 return(-1); 877 } 878 return(s->method->ssl_write(s,buf,num)); 879 } 880 881int SSL_shutdown(SSL *s) 882 { 883 /* Note that this function behaves differently from what one might 884 * expect. Return values are 0 for no success (yet), 885 * 1 for success; but calling it once is usually not enough, 886 * even if blocking I/O is used (see ssl3_shutdown). 887 */ 888 889 if (s->handshake_func == 0) 890 { 891 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 892 return -1; 893 } 894 895 if ((s != NULL) && !SSL_in_init(s)) 896 return(s->method->ssl_shutdown(s)); 897 else 898 return(1); 899 } 900 901int SSL_renegotiate(SSL *s) 902 { 903 if (s->new_session == 0) 904 { 905 s->new_session=1; 906 } 907 return(s->method->ssl_renegotiate(s)); 908 } 909 910int SSL_renegotiate_pending(SSL *s) 911 { 912 /* becomes true when negotiation is requested; 913 * false again once a handshake has finished */ 914 return (s->new_session != 0); 915 } 916 917long SSL_ctrl(SSL *s,int cmd,long larg,void *parg) 918 { 919 long l; 920 921 switch (cmd) 922 { 923 case SSL_CTRL_GET_READ_AHEAD: 924 return(s->read_ahead); 925 case SSL_CTRL_SET_READ_AHEAD: 926 l=s->read_ahead; 927 s->read_ahead=larg; 928 return(l); 929 930 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 931 s->msg_callback_arg = parg; 932 return 1; 933 934 case SSL_CTRL_OPTIONS: 935 return(s->options|=larg); 936 case SSL_CTRL_MODE: 937 return(s->mode|=larg); 938 case SSL_CTRL_GET_MAX_CERT_LIST: 939 return(s->max_cert_list); 940 case SSL_CTRL_SET_MAX_CERT_LIST: 941 l=s->max_cert_list; 942 s->max_cert_list=larg; 943 return(l); 944 default: 945 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 946 } 947 } 948 949long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)()) 950 { 951 switch(cmd) 952 { 953 case SSL_CTRL_SET_MSG_CALLBACK: 954 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 955 return 1; 956 957 default: 958 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 959 } 960 } 961 962struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx) 963 { 964 return ctx->sessions; 965 } 966 967long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg) 968 { 969 long l; 970 971 switch (cmd) 972 { 973 case SSL_CTRL_GET_READ_AHEAD: 974 return(ctx->read_ahead); 975 case SSL_CTRL_SET_READ_AHEAD: 976 l=ctx->read_ahead; 977 ctx->read_ahead=larg; 978 return(l); 979 980 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 981 ctx->msg_callback_arg = parg; 982 return 1; 983 984 case SSL_CTRL_GET_MAX_CERT_LIST: 985 return(ctx->max_cert_list); 986 case SSL_CTRL_SET_MAX_CERT_LIST: 987 l=ctx->max_cert_list; 988 ctx->max_cert_list=larg; 989 return(l); 990 991 case SSL_CTRL_SET_SESS_CACHE_SIZE: 992 l=ctx->session_cache_size; 993 ctx->session_cache_size=larg; 994 return(l); 995 case SSL_CTRL_GET_SESS_CACHE_SIZE: 996 return(ctx->session_cache_size); 997 case SSL_CTRL_SET_SESS_CACHE_MODE: 998 l=ctx->session_cache_mode; 999 ctx->session_cache_mode=larg; 1000 return(l); 1001 case SSL_CTRL_GET_SESS_CACHE_MODE: 1002 return(ctx->session_cache_mode); 1003 1004 case SSL_CTRL_SESS_NUMBER: 1005 return(ctx->sessions->num_items); 1006 case SSL_CTRL_SESS_CONNECT: 1007 return(ctx->stats.sess_connect); 1008 case SSL_CTRL_SESS_CONNECT_GOOD: 1009 return(ctx->stats.sess_connect_good); 1010 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1011 return(ctx->stats.sess_connect_renegotiate); 1012 case SSL_CTRL_SESS_ACCEPT: 1013 return(ctx->stats.sess_accept); 1014 case SSL_CTRL_SESS_ACCEPT_GOOD: 1015 return(ctx->stats.sess_accept_good); 1016 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1017 return(ctx->stats.sess_accept_renegotiate); 1018 case SSL_CTRL_SESS_HIT: 1019 return(ctx->stats.sess_hit); 1020 case SSL_CTRL_SESS_CB_HIT: 1021 return(ctx->stats.sess_cb_hit); 1022 case SSL_CTRL_SESS_MISSES: 1023 return(ctx->stats.sess_miss); 1024 case SSL_CTRL_SESS_TIMEOUTS: 1025 return(ctx->stats.sess_timeout); 1026 case SSL_CTRL_SESS_CACHE_FULL: 1027 return(ctx->stats.sess_cache_full); 1028 case SSL_CTRL_OPTIONS: 1029 return(ctx->options|=larg); 1030 case SSL_CTRL_MODE: 1031 return(ctx->mode|=larg); 1032 default: 1033 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 1034 } 1035 } 1036 1037long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)()) 1038 { 1039 switch(cmd) 1040 { 1041 case SSL_CTRL_SET_MSG_CALLBACK: 1042 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1043 return 1; 1044 1045 default: 1046 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 1047 } 1048 } 1049 1050int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1051 { 1052 long l; 1053 1054 l=a->id-b->id; 1055 if (l == 0L) 1056 return(0); 1057 else 1058 return((l > 0)?1:-1); 1059 } 1060 1061int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1062 const SSL_CIPHER * const *bp) 1063 { 1064 long l; 1065 1066 l=(*ap)->id-(*bp)->id; 1067 if (l == 0L) 1068 return(0); 1069 else 1070 return((l > 0)?1:-1); 1071 } 1072 1073/** return a STACK of the ciphers available for the SSL and in order of 1074 * preference */ 1075STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s) 1076 { 1077 if (s != NULL) 1078 { 1079 if (s->cipher_list != NULL) 1080 { 1081 return(s->cipher_list); 1082 } 1083 else if ((s->ctx != NULL) && 1084 (s->ctx->cipher_list != NULL)) 1085 { 1086 return(s->ctx->cipher_list); 1087 } 1088 } 1089 return(NULL); 1090 } 1091 1092/** return a STACK of the ciphers available for the SSL and in order of 1093 * algorithm id */ 1094STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 1095 { 1096 if (s != NULL) 1097 { 1098 if (s->cipher_list_by_id != NULL) 1099 { 1100 return(s->cipher_list_by_id); 1101 } 1102 else if ((s->ctx != NULL) && 1103 (s->ctx->cipher_list_by_id != NULL)) 1104 { 1105 return(s->ctx->cipher_list_by_id); 1106 } 1107 } 1108 return(NULL); 1109 } 1110 1111/** The old interface to get the same thing as SSL_get_ciphers() */ 1112const char *SSL_get_cipher_list(SSL *s,int n) 1113 { 1114 SSL_CIPHER *c; 1115 STACK_OF(SSL_CIPHER) *sk; 1116 1117 if (s == NULL) return(NULL); 1118 sk=SSL_get_ciphers(s); 1119 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1120 return(NULL); 1121 c=sk_SSL_CIPHER_value(sk,n); 1122 if (c == NULL) return(NULL); 1123 return(c->name); 1124 } 1125 1126/** specify the ciphers to be used by default by the SSL_CTX */ 1127int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1128 { 1129 STACK_OF(SSL_CIPHER) *sk; 1130 1131 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 1132 &ctx->cipher_list_by_id,str); 1133/* XXXX */ 1134 return((sk == NULL)?0:1); 1135 } 1136 1137/** specify the ciphers to be used by the SSL */ 1138int SSL_set_cipher_list(SSL *s,const char *str) 1139 { 1140 STACK_OF(SSL_CIPHER) *sk; 1141 1142 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 1143 &s->cipher_list_by_id,str); 1144/* XXXX */ 1145 return((sk == NULL)?0:1); 1146 } 1147 1148/* works well for SSLv2, not so good for SSLv3 */ 1149char *SSL_get_shared_ciphers(SSL *s,char *buf,int len) 1150 { 1151 char *p; 1152 const char *cp; 1153 STACK_OF(SSL_CIPHER) *sk; 1154 SSL_CIPHER *c; 1155 int i; 1156 1157 if ((s->session == NULL) || (s->session->ciphers == NULL) || 1158 (len < 2)) 1159 return(NULL); 1160 1161 p=buf; 1162 sk=s->session->ciphers; 1163 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1164 { 1165 /* Decrement for either the ':' or a '\0' */ 1166 len--; 1167 c=sk_SSL_CIPHER_value(sk,i); 1168 for (cp=c->name; *cp; ) 1169 { 1170 if (len-- == 0) 1171 { 1172 *p='\0'; 1173 return(buf); 1174 } 1175 else 1176 *(p++)= *(cp++); 1177 } 1178 *(p++)=':'; 1179 } 1180 p[-1]='\0'; 1181 return(buf); 1182 } 1183 1184int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p) 1185 { 1186 int i,j=0; 1187 SSL_CIPHER *c; 1188 unsigned char *q; 1189#ifndef OPENSSL_NO_KRB5 1190 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx); 1191#endif /* OPENSSL_NO_KRB5 */ 1192 1193 if (sk == NULL) return(0); 1194 q=p; 1195 1196 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1197 { 1198 c=sk_SSL_CIPHER_value(sk,i); 1199#ifndef OPENSSL_NO_KRB5 1200 if ((c->algorithms & SSL_KRB5) && nokrb5) 1201 continue; 1202#endif /* OPENSSL_NO_KRB5 */ 1203 j=ssl_put_cipher_by_char(s,c,p); 1204 p+=j; 1205 } 1206 return(p-q); 1207 } 1208 1209STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1210 STACK_OF(SSL_CIPHER) **skp) 1211 { 1212 SSL_CIPHER *c; 1213 STACK_OF(SSL_CIPHER) *sk; 1214 int i,n; 1215 1216 n=ssl_put_cipher_by_char(s,NULL,NULL); 1217 if ((num%n) != 0) 1218 { 1219 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1220 return(NULL); 1221 } 1222 if ((skp == NULL) || (*skp == NULL)) 1223 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1224 else 1225 { 1226 sk= *skp; 1227 sk_SSL_CIPHER_zero(sk); 1228 } 1229 1230 for (i=0; i<num; i+=n) 1231 { 1232 c=ssl_get_cipher_by_char(s,p); 1233 p+=n; 1234 if (c != NULL) 1235 { 1236 if (!sk_SSL_CIPHER_push(sk,c)) 1237 { 1238 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1239 goto err; 1240 } 1241 } 1242 } 1243 1244 if (skp != NULL) 1245 *skp=sk; 1246 return(sk); 1247err: 1248 if ((skp == NULL) || (*skp == NULL)) 1249 sk_SSL_CIPHER_free(sk); 1250 return(NULL); 1251 } 1252 1253unsigned long SSL_SESSION_hash(SSL_SESSION *a) 1254 { 1255 unsigned long l; 1256 1257 l=(unsigned long) 1258 ((unsigned int) a->session_id[0] )| 1259 ((unsigned int) a->session_id[1]<< 8L)| 1260 ((unsigned long)a->session_id[2]<<16L)| 1261 ((unsigned long)a->session_id[3]<<24L); 1262 return(l); 1263 } 1264 1265/* NB: If this function (or indeed the hash function which uses a sort of 1266 * coarser function than this one) is changed, ensure 1267 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1268 * able to construct an SSL_SESSION that will collide with any existing session 1269 * with a matching session ID. */ 1270int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b) 1271 { 1272 if (a->ssl_version != b->ssl_version) 1273 return(1); 1274 if (a->session_id_length != b->session_id_length) 1275 return(1); 1276 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1277 } 1278 1279/* These wrapper functions should remain rather than redeclaring 1280 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1281 * variable. The reason is that the functions aren't static, they're exposed via 1282 * ssl.h. */ 1283static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *) 1284static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *) 1285 1286SSL_CTX *SSL_CTX_new(SSL_METHOD *meth) 1287 { 1288 SSL_CTX *ret=NULL; 1289 1290 if (meth == NULL) 1291 { 1292 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1293 return(NULL); 1294 } 1295 1296#ifdef OPENSSL_FIPS 1297 if (FIPS_mode() && (meth->version < TLS1_VERSION)) 1298 { 1299 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE); 1300 return NULL; 1301 } 1302#endif 1303 1304 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1305 { 1306 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1307 goto err; 1308 } 1309 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); 1310 if (ret == NULL) 1311 goto err; 1312 1313 memset(ret,0,sizeof(SSL_CTX)); 1314 1315 ret->method=meth; 1316 1317 ret->cert_store=NULL; 1318 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1319 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1320 ret->session_cache_head=NULL; 1321 ret->session_cache_tail=NULL; 1322 1323 /* We take the system default */ 1324 ret->session_timeout=meth->get_timeout(); 1325 1326 ret->new_session_cb=0; 1327 ret->remove_session_cb=0; 1328 ret->get_session_cb=0; 1329 ret->generate_session_id=0; 1330 1331 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1332 1333 ret->references=1; 1334 ret->quiet_shutdown=0; 1335 1336/* ret->cipher=NULL;*/ 1337/* ret->s2->challenge=NULL; 1338 ret->master_key=NULL; 1339 ret->key_arg=NULL; 1340 ret->s2->conn_id=NULL; */ 1341 1342 ret->info_callback=NULL; 1343 1344 ret->app_verify_callback=0; 1345 ret->app_verify_arg=NULL; 1346 1347 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT; 1348 ret->read_ahead=0; 1349 ret->msg_callback=0; 1350 ret->msg_callback_arg=NULL; 1351 ret->verify_mode=SSL_VERIFY_NONE; 1352 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1353 ret->sid_ctx_length=0; 1354 ret->default_verify_callback=NULL; 1355 if ((ret->cert=ssl_cert_new()) == NULL) 1356 goto err; 1357 1358 ret->default_passwd_callback=0; 1359 ret->default_passwd_callback_userdata=NULL; 1360 ret->client_cert_cb=0; 1361 1362 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash), 1363 LHASH_COMP_FN(SSL_SESSION_cmp)); 1364 if (ret->sessions == NULL) goto err; 1365 ret->cert_store=X509_STORE_new(); 1366 if (ret->cert_store == NULL) goto err; 1367 1368 ssl_create_cipher_list(ret->method, 1369 &ret->cipher_list,&ret->cipher_list_by_id, 1370 SSL_DEFAULT_CIPHER_LIST); 1371 if (ret->cipher_list == NULL 1372 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1373 { 1374 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1375 goto err2; 1376 } 1377 1378 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1379 { 1380 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1381 goto err2; 1382 } 1383 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1384 { 1385 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1386 goto err2; 1387 } 1388 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1389 { 1390 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1391 goto err2; 1392 } 1393 1394 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1395 goto err; 1396 1397 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 1398 1399 ret->extra_certs=NULL; 1400 ret->comp_methods=SSL_COMP_get_compression_methods(); 1401 1402 return(ret); 1403err: 1404 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1405err2: 1406 if (ret != NULL) SSL_CTX_free(ret); 1407 return(NULL); 1408 } 1409 1410#if 0 1411static void SSL_COMP_free(SSL_COMP *comp) 1412 { OPENSSL_free(comp); } 1413#endif 1414 1415void SSL_CTX_free(SSL_CTX *a) 1416 { 1417 int i; 1418 1419 if (a == NULL) return; 1420 1421 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1422#ifdef REF_PRINT 1423 REF_PRINT("SSL_CTX",a); 1424#endif 1425 if (i > 0) return; 1426#ifdef REF_CHECK 1427 if (i < 0) 1428 { 1429 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1430 abort(); /* ok */ 1431 } 1432#endif 1433 1434 /* 1435 * Free internal session cache. However: the remove_cb() may reference 1436 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1437 * after the sessions were flushed. 1438 * As the ex_data handling routines might also touch the session cache, 1439 * the most secure solution seems to be: empty (flush) the cache, then 1440 * free ex_data, then finally free the cache. 1441 * (See ticket [openssl.org #212].) 1442 */ 1443 if (a->sessions != NULL) 1444 SSL_CTX_flush_sessions(a,0); 1445 1446 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); 1447 1448 if (a->sessions != NULL) 1449 lh_free(a->sessions); 1450 1451 if (a->cert_store != NULL) 1452 X509_STORE_free(a->cert_store); 1453 if (a->cipher_list != NULL) 1454 sk_SSL_CIPHER_free(a->cipher_list); 1455 if (a->cipher_list_by_id != NULL) 1456 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1457 if (a->cert != NULL) 1458 ssl_cert_free(a->cert); 1459 if (a->client_CA != NULL) 1460 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1461 if (a->extra_certs != NULL) 1462 sk_X509_pop_free(a->extra_certs,X509_free); 1463#if 0 /* This should never be done, since it removes a global database */ 1464 if (a->comp_methods != NULL) 1465 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1466#else 1467 a->comp_methods = NULL; 1468#endif 1469 OPENSSL_free(a); 1470 } 1471 1472void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1473 { 1474 ctx->default_passwd_callback=cb; 1475 } 1476 1477void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1478 { 1479 ctx->default_passwd_callback_userdata=u; 1480 } 1481 1482void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg) 1483 { 1484 ctx->app_verify_callback=cb; 1485 ctx->app_verify_arg=arg; 1486 } 1487 1488void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1489 { 1490 ctx->verify_mode=mode; 1491 ctx->default_verify_callback=cb; 1492 } 1493 1494void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1495 { 1496 ctx->verify_depth=depth; 1497 } 1498 1499void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) 1500 { 1501 CERT_PKEY *cpk; 1502 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1503 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1504 int rsa_tmp_export,dh_tmp_export,kl; 1505 unsigned long mask,emask; 1506 1507 if (c == NULL) return; 1508 1509 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1510 1511#ifndef OPENSSL_NO_RSA 1512 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1513 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1514 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1515#else 1516 rsa_tmp=rsa_tmp_export=0; 1517#endif 1518#ifndef OPENSSL_NO_DH 1519 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1520 dh_tmp_export=(c->dh_tmp_cb != NULL || 1521 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1522#else 1523 dh_tmp=dh_tmp_export=0; 1524#endif 1525 1526 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1527 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1528 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1529 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1530 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1531 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1532 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1533 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1534 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1535 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1536 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1537/* FIX THIS EAY EAY EAY */ 1538 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1539 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1540 1541 mask=0; 1542 emask=0; 1543 1544#ifdef CIPHER_DEBUG 1545 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1546 rsa_tmp,rsa_tmp_export,dh_tmp, 1547 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1548#endif 1549 1550 if (rsa_enc || (rsa_tmp && rsa_sign)) 1551 mask|=SSL_kRSA; 1552 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1553 emask|=SSL_kRSA; 1554 1555#if 0 1556 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1557 if ( (dh_tmp || dh_rsa || dh_dsa) && 1558 (rsa_enc || rsa_sign || dsa_sign)) 1559 mask|=SSL_kEDH; 1560 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1561 (rsa_enc || rsa_sign || dsa_sign)) 1562 emask|=SSL_kEDH; 1563#endif 1564 1565 if (dh_tmp_export) 1566 emask|=SSL_kEDH; 1567 1568 if (dh_tmp) 1569 mask|=SSL_kEDH; 1570 1571 if (dh_rsa) mask|=SSL_kDHr; 1572 if (dh_rsa_export) emask|=SSL_kDHr; 1573 1574 if (dh_dsa) mask|=SSL_kDHd; 1575 if (dh_dsa_export) emask|=SSL_kDHd; 1576 1577 if (rsa_enc || rsa_sign) 1578 { 1579 mask|=SSL_aRSA; 1580 emask|=SSL_aRSA; 1581 } 1582 1583 if (dsa_sign) 1584 { 1585 mask|=SSL_aDSS; 1586 emask|=SSL_aDSS; 1587 } 1588 1589 mask|=SSL_aNULL; 1590 emask|=SSL_aNULL; 1591 1592#ifndef OPENSSL_NO_KRB5 1593 mask|=SSL_kKRB5|SSL_aKRB5; 1594 emask|=SSL_kKRB5|SSL_aKRB5; 1595#endif 1596 1597 c->mask=mask; 1598 c->export_mask=emask; 1599 c->valid=1; 1600 } 1601 1602/* THIS NEEDS CLEANING UP */ 1603X509 *ssl_get_server_send_cert(SSL *s) 1604 { 1605 unsigned long alg,mask,kalg; 1606 CERT *c; 1607 int i,is_export; 1608 1609 c=s->cert; 1610 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 1611 alg=s->s3->tmp.new_cipher->algorithms; 1612 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 1613 mask=is_export?c->export_mask:c->mask; 1614 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1615 1616 if (kalg & SSL_kDHr) 1617 i=SSL_PKEY_DH_RSA; 1618 else if (kalg & SSL_kDHd) 1619 i=SSL_PKEY_DH_DSA; 1620 else if (kalg & SSL_aDSS) 1621 i=SSL_PKEY_DSA_SIGN; 1622 else if (kalg & SSL_aRSA) 1623 { 1624 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1625 i=SSL_PKEY_RSA_SIGN; 1626 else 1627 i=SSL_PKEY_RSA_ENC; 1628 } 1629 else if (kalg & SSL_aKRB5) 1630 { 1631 /* VRS something else here? */ 1632 return(NULL); 1633 } 1634 else /* if (kalg & SSL_aNULL) */ 1635 { 1636 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR); 1637 return(NULL); 1638 } 1639 if (c->pkeys[i].x509 == NULL) return(NULL); 1640 return(c->pkeys[i].x509); 1641 } 1642 1643EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher) 1644 { 1645 unsigned long alg; 1646 CERT *c; 1647 1648 alg=cipher->algorithms; 1649 c=s->cert; 1650 1651 if ((alg & SSL_aDSS) && 1652 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 1653 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 1654 else if (alg & SSL_aRSA) 1655 { 1656 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 1657 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 1658 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 1659 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 1660 else 1661 return(NULL); 1662 } 1663 else /* if (alg & SSL_aNULL) */ 1664 { 1665 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR); 1666 return(NULL); 1667 } 1668 } 1669 1670void ssl_update_cache(SSL *s,int mode) 1671 { 1672 int i; 1673 1674 /* If the session_id_length is 0, we are not supposed to cache it, 1675 * and it would be rather hard to do anyway :-) */ 1676 if (s->session->session_id_length == 0) return; 1677 1678 i=s->ctx->session_cache_mode; 1679 if ((i & mode) && (!s->hit) 1680 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 1681 || SSL_CTX_add_session(s->ctx,s->session)) 1682 && (s->ctx->new_session_cb != NULL)) 1683 { 1684 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 1685 if (!s->ctx->new_session_cb(s,s->session)) 1686 SSL_SESSION_free(s->session); 1687 } 1688 1689 /* auto flush every 255 connections */ 1690 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 1691 ((i & mode) == mode)) 1692 { 1693 if ( (((mode & SSL_SESS_CACHE_CLIENT) 1694 ?s->ctx->stats.sess_connect_good 1695 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff) 1696 { 1697 SSL_CTX_flush_sessions(s->ctx,time(NULL)); 1698 } 1699 } 1700 } 1701 1702SSL_METHOD *SSL_get_ssl_method(SSL *s) 1703 { 1704 return(s->method); 1705 } 1706 1707int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth) 1708 { 1709 int conn= -1; 1710 int ret=1; 1711 1712 if (s->method != meth) 1713 { 1714 if (s->handshake_func != NULL) 1715 conn=(s->handshake_func == s->method->ssl_connect); 1716 1717 if (s->method->version == meth->version) 1718 s->method=meth; 1719 else 1720 { 1721 s->method->ssl_free(s); 1722 s->method=meth; 1723 ret=s->method->ssl_new(s); 1724 } 1725 1726 if (conn == 1) 1727 s->handshake_func=meth->ssl_connect; 1728 else if (conn == 0) 1729 s->handshake_func=meth->ssl_accept; 1730 } 1731 return(ret); 1732 } 1733 1734int SSL_get_error(SSL *s,int i) 1735 { 1736 int reason; 1737 unsigned long l; 1738 BIO *bio; 1739 1740 if (i > 0) return(SSL_ERROR_NONE); 1741 1742 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 1743 * etc, where we do encode the error */ 1744 if ((l=ERR_peek_error()) != 0) 1745 { 1746 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 1747 return(SSL_ERROR_SYSCALL); 1748 else 1749 return(SSL_ERROR_SSL); 1750 } 1751 1752 if ((i < 0) && SSL_want_read(s)) 1753 { 1754 bio=SSL_get_rbio(s); 1755 if (BIO_should_read(bio)) 1756 return(SSL_ERROR_WANT_READ); 1757 else if (BIO_should_write(bio)) 1758 /* This one doesn't make too much sense ... We never try 1759 * to write to the rbio, and an application program where 1760 * rbio and wbio are separate couldn't even know what it 1761 * should wait for. 1762 * However if we ever set s->rwstate incorrectly 1763 * (so that we have SSL_want_read(s) instead of 1764 * SSL_want_write(s)) and rbio and wbio *are* the same, 1765 * this test works around that bug; so it might be safer 1766 * to keep it. */ 1767 return(SSL_ERROR_WANT_WRITE); 1768 else if (BIO_should_io_special(bio)) 1769 { 1770 reason=BIO_get_retry_reason(bio); 1771 if (reason == BIO_RR_CONNECT) 1772 return(SSL_ERROR_WANT_CONNECT); 1773 else if (reason == BIO_RR_ACCEPT) 1774 return(SSL_ERROR_WANT_ACCEPT); 1775 else 1776 return(SSL_ERROR_SYSCALL); /* unknown */ 1777 } 1778 } 1779 1780 if ((i < 0) && SSL_want_write(s)) 1781 { 1782 bio=SSL_get_wbio(s); 1783 if (BIO_should_write(bio)) 1784 return(SSL_ERROR_WANT_WRITE); 1785 else if (BIO_should_read(bio)) 1786 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 1787 return(SSL_ERROR_WANT_READ); 1788 else if (BIO_should_io_special(bio)) 1789 { 1790 reason=BIO_get_retry_reason(bio); 1791 if (reason == BIO_RR_CONNECT) 1792 return(SSL_ERROR_WANT_CONNECT); 1793 else if (reason == BIO_RR_ACCEPT) 1794 return(SSL_ERROR_WANT_ACCEPT); 1795 else 1796 return(SSL_ERROR_SYSCALL); 1797 } 1798 } 1799 if ((i < 0) && SSL_want_x509_lookup(s)) 1800 { 1801 return(SSL_ERROR_WANT_X509_LOOKUP); 1802 } 1803 1804 if (i == 0) 1805 { 1806 if (s->version == SSL2_VERSION) 1807 { 1808 /* assume it is the socket being closed */ 1809 return(SSL_ERROR_ZERO_RETURN); 1810 } 1811 else 1812 { 1813 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 1814 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 1815 return(SSL_ERROR_ZERO_RETURN); 1816 } 1817 } 1818 return(SSL_ERROR_SYSCALL); 1819 } 1820 1821int SSL_do_handshake(SSL *s) 1822 { 1823 int ret=1; 1824 1825 if (s->handshake_func == NULL) 1826 { 1827 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 1828 return(-1); 1829 } 1830 1831 s->method->ssl_renegotiate_check(s); 1832 1833 if (SSL_in_init(s) || SSL_in_before(s)) 1834 { 1835 ret=s->handshake_func(s); 1836 } 1837 return(ret); 1838 } 1839 1840/* For the next 2 functions, SSL_clear() sets shutdown and so 1841 * one of these calls will reset it */ 1842void SSL_set_accept_state(SSL *s) 1843 { 1844 s->server=1; 1845 s->shutdown=0; 1846 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 1847 s->handshake_func=s->method->ssl_accept; 1848 /* clear the current cipher */ 1849 ssl_clear_cipher_ctx(s); 1850 } 1851 1852void SSL_set_connect_state(SSL *s) 1853 { 1854 s->server=0; 1855 s->shutdown=0; 1856 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 1857 s->handshake_func=s->method->ssl_connect; 1858 /* clear the current cipher */ 1859 ssl_clear_cipher_ctx(s); 1860 } 1861 1862int ssl_undefined_function(SSL *s) 1863 { 1864 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1865 return(0); 1866 } 1867 1868SSL_METHOD *ssl_bad_method(int ver) 1869 { 1870 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1871 return(NULL); 1872 } 1873 1874const char *SSL_get_version(SSL *s) 1875 { 1876 if (s->version == TLS1_VERSION) 1877 return("TLSv1"); 1878 else if (s->version == SSL3_VERSION) 1879 return("SSLv3"); 1880 else if (s->version == SSL2_VERSION) 1881 return("SSLv2"); 1882 else 1883 return("unknown"); 1884 } 1885 1886SSL *SSL_dup(SSL *s) 1887 { 1888 STACK_OF(X509_NAME) *sk; 1889 X509_NAME *xn; 1890 SSL *ret; 1891 int i; 1892 1893 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 1894 return(NULL); 1895 1896 ret->version = s->version; 1897 ret->type = s->type; 1898 ret->method = s->method; 1899 1900 if (s->session != NULL) 1901 { 1902 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 1903 SSL_copy_session_id(ret,s); 1904 } 1905 else 1906 { 1907 /* No session has been established yet, so we have to expect 1908 * that s->cert or ret->cert will be changed later -- 1909 * they should not both point to the same object, 1910 * and thus we can't use SSL_copy_session_id. */ 1911 1912 ret->method->ssl_free(ret); 1913 ret->method = s->method; 1914 ret->method->ssl_new(ret); 1915 1916 if (s->cert != NULL) 1917 { 1918 if (ret->cert != NULL) 1919 { 1920 ssl_cert_free(ret->cert); 1921 } 1922 ret->cert = ssl_cert_dup(s->cert); 1923 if (ret->cert == NULL) 1924 goto err; 1925 } 1926 1927 SSL_set_session_id_context(ret, 1928 s->sid_ctx, s->sid_ctx_length); 1929 } 1930 1931 ret->options=s->options; 1932 ret->mode=s->mode; 1933 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s)); 1934 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 1935 ret->msg_callback = s->msg_callback; 1936 ret->msg_callback_arg = s->msg_callback_arg; 1937 SSL_set_verify(ret,SSL_get_verify_mode(s), 1938 SSL_get_verify_callback(s)); 1939 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 1940 ret->generate_session_id = s->generate_session_id; 1941 1942 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 1943 1944 ret->debug=s->debug; 1945 1946 /* copy app data, a little dangerous perhaps */ 1947 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) 1948 goto err; 1949 1950 /* setup rbio, and wbio */ 1951 if (s->rbio != NULL) 1952 { 1953 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 1954 goto err; 1955 } 1956 if (s->wbio != NULL) 1957 { 1958 if (s->wbio != s->rbio) 1959 { 1960 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 1961 goto err; 1962 } 1963 else 1964 ret->wbio=ret->rbio; 1965 } 1966 ret->rwstate = s->rwstate; 1967 ret->in_handshake = s->in_handshake; 1968 ret->handshake_func = s->handshake_func; 1969 ret->server = s->server; 1970 ret->new_session = s->new_session; 1971 ret->quiet_shutdown = s->quiet_shutdown; 1972 ret->shutdown=s->shutdown; 1973 ret->state=s->state; /* SSL_dup does not really work at any state, though */ 1974 ret->rstate=s->rstate; 1975 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */ 1976 ret->hit=s->hit; 1977 ret->purpose=s->purpose; 1978 ret->trust=s->trust; 1979 1980 /* dup the cipher_list and cipher_list_by_id stacks */ 1981 if (s->cipher_list != NULL) 1982 { 1983 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 1984 goto err; 1985 } 1986 if (s->cipher_list_by_id != NULL) 1987 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 1988 == NULL) 1989 goto err; 1990 1991 /* Dup the client_CA list */ 1992 if (s->client_CA != NULL) 1993 { 1994 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 1995 ret->client_CA=sk; 1996 for (i=0; i<sk_X509_NAME_num(sk); i++) 1997 { 1998 xn=sk_X509_NAME_value(sk,i); 1999 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 2000 { 2001 X509_NAME_free(xn); 2002 goto err; 2003 } 2004 } 2005 } 2006 2007 if (0) 2008 { 2009err: 2010 if (ret != NULL) SSL_free(ret); 2011 ret=NULL; 2012 } 2013 return(ret); 2014 } 2015 2016void ssl_clear_cipher_ctx(SSL *s) 2017 { 2018 if (s->enc_read_ctx != NULL) 2019 { 2020 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 2021 OPENSSL_free(s->enc_read_ctx); 2022 s->enc_read_ctx=NULL; 2023 } 2024 if (s->enc_write_ctx != NULL) 2025 { 2026 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 2027 OPENSSL_free(s->enc_write_ctx); 2028 s->enc_write_ctx=NULL; 2029 } 2030 if (s->expand != NULL) 2031 { 2032 COMP_CTX_free(s->expand); 2033 s->expand=NULL; 2034 } 2035 if (s->compress != NULL) 2036 { 2037 COMP_CTX_free(s->compress); 2038 s->compress=NULL; 2039 } 2040 } 2041 2042/* Fix this function so that it takes an optional type parameter */ 2043X509 *SSL_get_certificate(SSL *s) 2044 { 2045 if (s->cert != NULL) 2046 return(s->cert->key->x509); 2047 else 2048 return(NULL); 2049 } 2050 2051/* Fix this function so that it takes an optional type parameter */ 2052EVP_PKEY *SSL_get_privatekey(SSL *s) 2053 { 2054 if (s->cert != NULL) 2055 return(s->cert->key->privatekey); 2056 else 2057 return(NULL); 2058 } 2059 2060SSL_CIPHER *SSL_get_current_cipher(SSL *s) 2061 { 2062 if ((s->session != NULL) && (s->session->cipher != NULL)) 2063 return(s->session->cipher); 2064 return(NULL); 2065 } 2066 2067int ssl_init_wbio_buffer(SSL *s,int push) 2068 { 2069 BIO *bbio; 2070 2071 if (s->bbio == NULL) 2072 { 2073 bbio=BIO_new(BIO_f_buffer()); 2074 if (bbio == NULL) return(0); 2075 s->bbio=bbio; 2076 } 2077 else 2078 { 2079 bbio=s->bbio; 2080 if (s->bbio == s->wbio) 2081 s->wbio=BIO_pop(s->wbio); 2082 } 2083 (void)BIO_reset(bbio); 2084/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2085 if (!BIO_set_read_buffer_size(bbio,1)) 2086 { 2087 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 2088 return(0); 2089 } 2090 if (push) 2091 { 2092 if (s->wbio != bbio) 2093 s->wbio=BIO_push(bbio,s->wbio); 2094 } 2095 else 2096 { 2097 if (s->wbio == bbio) 2098 s->wbio=BIO_pop(bbio); 2099 } 2100 return(1); 2101 } 2102 2103void ssl_free_wbio_buffer(SSL *s) 2104 { 2105 if (s->bbio == NULL) return; 2106 2107 if (s->bbio == s->wbio) 2108 { 2109 /* remove buffering */ 2110 s->wbio=BIO_pop(s->wbio); 2111#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */ 2112 assert(s->wbio != NULL); 2113#endif 2114 } 2115 BIO_free(s->bbio); 2116 s->bbio=NULL; 2117 } 2118 2119void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 2120 { 2121 ctx->quiet_shutdown=mode; 2122 } 2123 2124int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx) 2125 { 2126 return(ctx->quiet_shutdown); 2127 } 2128 2129void SSL_set_quiet_shutdown(SSL *s,int mode) 2130 { 2131 s->quiet_shutdown=mode; 2132 } 2133 2134int SSL_get_quiet_shutdown(SSL *s) 2135 { 2136 return(s->quiet_shutdown); 2137 } 2138 2139void SSL_set_shutdown(SSL *s,int mode) 2140 { 2141 s->shutdown=mode; 2142 } 2143 2144int SSL_get_shutdown(SSL *s) 2145 { 2146 return(s->shutdown); 2147 } 2148 2149int SSL_version(SSL *s) 2150 { 2151 return(s->version); 2152 } 2153 2154SSL_CTX *SSL_get_SSL_CTX(SSL *ssl) 2155 { 2156 return(ssl->ctx); 2157 } 2158 2159#ifndef OPENSSL_NO_STDIO 2160int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2161 { 2162 return(X509_STORE_set_default_paths(ctx->cert_store)); 2163 } 2164 2165int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2166 const char *CApath) 2167 { 2168 int r; 2169 r=X509_STORE_load_locations(ctx->cert_store,CAfile,CApath); 2170 return r; 2171 } 2172#endif 2173 2174void SSL_set_info_callback(SSL *ssl, 2175 void (*cb)(const SSL *ssl,int type,int val)) 2176 { 2177 ssl->info_callback=cb; 2178 } 2179 2180void (*SSL_get_info_callback(SSL *ssl))(const SSL *ssl,int type,int val) 2181 { 2182 return ssl->info_callback; 2183 } 2184 2185int SSL_state(SSL *ssl) 2186 { 2187 return(ssl->state); 2188 } 2189 2190void SSL_set_verify_result(SSL *ssl,long arg) 2191 { 2192 ssl->verify_result=arg; 2193 } 2194 2195long SSL_get_verify_result(SSL *ssl) 2196 { 2197 return(ssl->verify_result); 2198 } 2199 2200int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2201 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2202 { 2203 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2204 new_func, dup_func, free_func); 2205 } 2206 2207int SSL_set_ex_data(SSL *s,int idx,void *arg) 2208 { 2209 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2210 } 2211 2212void *SSL_get_ex_data(SSL *s,int idx) 2213 { 2214 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2215 } 2216 2217int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2218 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2219 { 2220 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2221 new_func, dup_func, free_func); 2222 } 2223 2224int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 2225 { 2226 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2227 } 2228 2229void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx) 2230 { 2231 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2232 } 2233 2234int ssl_ok(SSL *s) 2235 { 2236 return(1); 2237 } 2238 2239X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx) 2240 { 2241 return(ctx->cert_store); 2242 } 2243 2244void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 2245 { 2246 if (ctx->cert_store != NULL) 2247 X509_STORE_free(ctx->cert_store); 2248 ctx->cert_store=store; 2249 } 2250 2251int SSL_want(SSL *s) 2252 { 2253 return(s->rwstate); 2254 } 2255 2256/*! 2257 * \brief Set the callback for generating temporary RSA keys. 2258 * \param ctx the SSL context. 2259 * \param cb the callback 2260 */ 2261 2262#ifndef OPENSSL_NO_RSA 2263void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2264 int is_export, 2265 int keylength)) 2266 { 2267 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2268 } 2269 2270void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2271 int is_export, 2272 int keylength)) 2273 { 2274 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2275 } 2276#endif 2277 2278#ifdef DOXYGEN 2279/*! 2280 * \brief The RSA temporary key callback function. 2281 * \param ssl the SSL session. 2282 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2283 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2284 * of the required key in bits. 2285 * \return the temporary RSA key. 2286 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2287 */ 2288 2289RSA *cb(SSL *ssl,int is_export,int keylength) 2290 {} 2291#endif 2292 2293/*! 2294 * \brief Set the callback for generating temporary DH keys. 2295 * \param ctx the SSL context. 2296 * \param dh the callback 2297 */ 2298 2299#ifndef OPENSSL_NO_DH 2300void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2301 int keylength)) 2302 { 2303 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2304 } 2305 2306void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2307 int keylength)) 2308 { 2309 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2310 } 2311#endif 2312 2313 2314void 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)) 2315 { 2316 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb); 2317 } 2318void 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)) 2319 { 2320 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb); 2321 } 2322 2323 2324 2325#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16) 2326#include "../crypto/bio/bss_file.c" 2327#endif 2328 2329IMPLEMENT_STACK_OF(SSL_CIPHER) 2330IMPLEMENT_STACK_OF(SSL_COMP) 2331