ssl_lib.c revision 1.19
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 if (s->ctx) SSL_CTX_free(s->ctx); 512#ifndef OPENSSL_NO_TLSEXT 513 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx); 514 if (s->tlsext_ocsp_exts) 515 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 516 X509_EXTENSION_free); 517 if (s->tlsext_ocsp_ids) 518 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 519 if (s->tlsext_ocsp_resp) 520 OPENSSL_free(s->tlsext_ocsp_resp); 521#endif 522 if (s->client_CA != NULL) 523 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free); 524 525 if (s->method != NULL) s->method->ssl_free(s); 526 527#ifndef OPENSSL_NO_KRB5 528 if (s->kssl_ctx != NULL) 529 kssl_ctx_free(s->kssl_ctx); 530#endif /* OPENSSL_NO_KRB5 */ 531 532 OPENSSL_free(s); 533 } 534 535void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio) 536 { 537 /* If the output buffering BIO is still in place, remove it 538 */ 539 if (s->bbio != NULL) 540 { 541 if (s->wbio == s->bbio) 542 { 543 s->wbio=s->wbio->next_bio; 544 s->bbio->next_bio=NULL; 545 } 546 } 547 if ((s->rbio != NULL) && (s->rbio != rbio)) 548 BIO_free_all(s->rbio); 549 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 550 BIO_free_all(s->wbio); 551 s->rbio=rbio; 552 s->wbio=wbio; 553 } 554 555BIO *SSL_get_rbio(const SSL *s) 556 { return(s->rbio); } 557 558BIO *SSL_get_wbio(const SSL *s) 559 { return(s->wbio); } 560 561int SSL_get_fd(const SSL *s) 562 { 563 return(SSL_get_rfd(s)); 564 } 565 566int SSL_get_rfd(const SSL *s) 567 { 568 int ret= -1; 569 BIO *b,*r; 570 571 b=SSL_get_rbio(s); 572 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 573 if (r != NULL) 574 BIO_get_fd(r,&ret); 575 return(ret); 576 } 577 578int SSL_get_wfd(const SSL *s) 579 { 580 int ret= -1; 581 BIO *b,*r; 582 583 b=SSL_get_wbio(s); 584 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 585 if (r != NULL) 586 BIO_get_fd(r,&ret); 587 return(ret); 588 } 589 590#ifndef OPENSSL_NO_SOCK 591int SSL_set_fd(SSL *s,int fd) 592 { 593 int ret=0; 594 BIO *bio=NULL; 595 596 bio=BIO_new(BIO_s_socket()); 597 598 if (bio == NULL) 599 { 600 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 601 goto err; 602 } 603 BIO_set_fd(bio,fd,BIO_NOCLOSE); 604 SSL_set_bio(s,bio,bio); 605 ret=1; 606err: 607 return(ret); 608 } 609 610int SSL_set_wfd(SSL *s,int fd) 611 { 612 int ret=0; 613 BIO *bio=NULL; 614 615 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 616 || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 617 { 618 bio=BIO_new(BIO_s_socket()); 619 620 if (bio == NULL) 621 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 622 BIO_set_fd(bio,fd,BIO_NOCLOSE); 623 SSL_set_bio(s,SSL_get_rbio(s),bio); 624 } 625 else 626 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 627 ret=1; 628err: 629 return(ret); 630 } 631 632int SSL_set_rfd(SSL *s,int fd) 633 { 634 int ret=0; 635 BIO *bio=NULL; 636 637 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 638 || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 639 { 640 bio=BIO_new(BIO_s_socket()); 641 642 if (bio == NULL) 643 { 644 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 645 goto err; 646 } 647 BIO_set_fd(bio,fd,BIO_NOCLOSE); 648 SSL_set_bio(s,bio,SSL_get_wbio(s)); 649 } 650 else 651 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 652 ret=1; 653err: 654 return(ret); 655 } 656#endif 657 658 659/* return length of latest Finished message we sent, copy to 'buf' */ 660size_t SSL_get_finished(const SSL *s, void *buf, size_t count) 661 { 662 size_t ret = 0; 663 664 if (s->s3 != NULL) 665 { 666 ret = s->s3->tmp.finish_md_len; 667 if (count > ret) 668 count = ret; 669 memcpy(buf, s->s3->tmp.finish_md, count); 670 } 671 return ret; 672 } 673 674/* return length of latest Finished message we expected, copy to 'buf' */ 675size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 676 { 677 size_t ret = 0; 678 679 if (s->s3 != NULL) 680 { 681 ret = s->s3->tmp.peer_finish_md_len; 682 if (count > ret) 683 count = ret; 684 memcpy(buf, s->s3->tmp.peer_finish_md, count); 685 } 686 return ret; 687 } 688 689 690int SSL_get_verify_mode(const SSL *s) 691 { 692 return(s->verify_mode); 693 } 694 695int SSL_get_verify_depth(const SSL *s) 696 { 697 return X509_VERIFY_PARAM_get_depth(s->param); 698 } 699 700int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *) 701 { 702 return(s->verify_callback); 703 } 704 705int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 706 { 707 return(ctx->verify_mode); 708 } 709 710int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 711 { 712 return X509_VERIFY_PARAM_get_depth(ctx->param); 713 } 714 715int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *) 716 { 717 return(ctx->default_verify_callback); 718 } 719 720void SSL_set_verify(SSL *s,int mode, 721 int (*callback)(int ok,X509_STORE_CTX *ctx)) 722 { 723 s->verify_mode=mode; 724 if (callback != NULL) 725 s->verify_callback=callback; 726 } 727 728void SSL_set_verify_depth(SSL *s,int depth) 729 { 730 X509_VERIFY_PARAM_set_depth(s->param, depth); 731 } 732 733void SSL_set_read_ahead(SSL *s,int yes) 734 { 735 s->read_ahead=yes; 736 } 737 738int SSL_get_read_ahead(const SSL *s) 739 { 740 return(s->read_ahead); 741 } 742 743int SSL_pending(const SSL *s) 744 { 745 /* SSL_pending cannot work properly if read-ahead is enabled 746 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 747 * and it is impossible to fix since SSL_pending cannot report 748 * errors that may be observed while scanning the new data. 749 * (Note that SSL_pending() is often used as a boolean value, 750 * so we'd better not return -1.) 751 */ 752 return(s->method->ssl_pending(s)); 753 } 754 755X509 *SSL_get_peer_certificate(const SSL *s) 756 { 757 X509 *r; 758 759 if ((s == NULL) || (s->session == NULL)) 760 r=NULL; 761 else 762 r=s->session->peer; 763 764 if (r == NULL) return(r); 765 766 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 767 768 return(r); 769 } 770 771STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) 772 { 773 STACK_OF(X509) *r; 774 775 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 776 r=NULL; 777 else 778 r=s->session->sess_cert->cert_chain; 779 780 /* If we are a client, cert_chain includes the peer's own 781 * certificate; if we are a server, it does not. */ 782 783 return(r); 784 } 785 786/* Now in theory, since the calling process own 't' it should be safe to 787 * modify. We need to be able to read f without being hassled */ 788void SSL_copy_session_id(SSL *t,const SSL *f) 789 { 790 CERT *tmp; 791 792 /* Do we need to to SSL locking? */ 793 SSL_set_session(t,SSL_get_session(f)); 794 795 /* what if we are setup as SSLv2 but want to talk SSLv3 or 796 * vice-versa */ 797 if (t->method != f->method) 798 { 799 t->method->ssl_free(t); /* cleanup current */ 800 t->method=f->method; /* change method */ 801 t->method->ssl_new(t); /* setup new */ 802 } 803 804 tmp=t->cert; 805 if (f->cert != NULL) 806 { 807 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 808 t->cert=f->cert; 809 } 810 else 811 t->cert=NULL; 812 if (tmp != NULL) ssl_cert_free(tmp); 813 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length); 814 } 815 816/* Fix this so it checks all the valid key/cert options */ 817int SSL_CTX_check_private_key(const SSL_CTX *ctx) 818 { 819 if ( (ctx == NULL) || 820 (ctx->cert == NULL) || 821 (ctx->cert->key->x509 == NULL)) 822 { 823 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 824 return(0); 825 } 826 if (ctx->cert->key->privatekey == NULL) 827 { 828 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 829 return(0); 830 } 831 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 832 } 833 834/* Fix this function so that it takes an optional type parameter */ 835int SSL_check_private_key(const SSL *ssl) 836 { 837 if (ssl == NULL) 838 { 839 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 840 return(0); 841 } 842 if (ssl->cert == NULL) 843 { 844 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 845 return 0; 846 } 847 if (ssl->cert->key->x509 == NULL) 848 { 849 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 850 return(0); 851 } 852 if (ssl->cert->key->privatekey == NULL) 853 { 854 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 855 return(0); 856 } 857 return(X509_check_private_key(ssl->cert->key->x509, 858 ssl->cert->key->privatekey)); 859 } 860 861int SSL_accept(SSL *s) 862 { 863 if (s->handshake_func == 0) 864 /* Not properly initialized yet */ 865 SSL_set_accept_state(s); 866 867 return(s->method->ssl_accept(s)); 868 } 869 870int SSL_connect(SSL *s) 871 { 872 if (s->handshake_func == 0) 873 /* Not properly initialized yet */ 874 SSL_set_connect_state(s); 875 876 return(s->method->ssl_connect(s)); 877 } 878 879long SSL_get_default_timeout(const SSL *s) 880 { 881 return(s->method->get_timeout()); 882 } 883 884int SSL_read(SSL *s,void *buf,int num) 885 { 886 if (s->handshake_func == 0) 887 { 888 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 889 return -1; 890 } 891 892 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 893 { 894 s->rwstate=SSL_NOTHING; 895 return(0); 896 } 897 return(s->method->ssl_read(s,buf,num)); 898 } 899 900int SSL_peek(SSL *s,void *buf,int num) 901 { 902 if (s->handshake_func == 0) 903 { 904 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); 905 return -1; 906 } 907 908 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 909 { 910 return(0); 911 } 912 return(s->method->ssl_peek(s,buf,num)); 913 } 914 915int SSL_write(SSL *s,const void *buf,int num) 916 { 917 if (s->handshake_func == 0) 918 { 919 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 920 return -1; 921 } 922 923 if (s->shutdown & SSL_SENT_SHUTDOWN) 924 { 925 s->rwstate=SSL_NOTHING; 926 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 927 return(-1); 928 } 929 return(s->method->ssl_write(s,buf,num)); 930 } 931 932int SSL_shutdown(SSL *s) 933 { 934 /* Note that this function behaves differently from what one might 935 * expect. Return values are 0 for no success (yet), 936 * 1 for success; but calling it once is usually not enough, 937 * even if blocking I/O is used (see ssl3_shutdown). 938 */ 939 940 if (s->handshake_func == 0) 941 { 942 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 943 return -1; 944 } 945 946 if ((s != NULL) && !SSL_in_init(s)) 947 return(s->method->ssl_shutdown(s)); 948 else 949 return(1); 950 } 951 952int SSL_renegotiate(SSL *s) 953 { 954 if (s->new_session == 0) 955 { 956 s->new_session=1; 957 } 958 return(s->method->ssl_renegotiate(s)); 959 } 960 961int SSL_renegotiate_pending(SSL *s) 962 { 963 /* becomes true when negotiation is requested; 964 * false again once a handshake has finished */ 965 return (s->new_session != 0); 966 } 967 968long SSL_ctrl(SSL *s,int cmd,long larg,void *parg) 969 { 970 long l; 971 972 switch (cmd) 973 { 974 case SSL_CTRL_GET_READ_AHEAD: 975 return(s->read_ahead); 976 case SSL_CTRL_SET_READ_AHEAD: 977 l=s->read_ahead; 978 s->read_ahead=larg; 979 return(l); 980 981 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 982 s->msg_callback_arg = parg; 983 return 1; 984 985 case SSL_CTRL_OPTIONS: 986 return(s->options|=larg); 987 case SSL_CTRL_MODE: 988 return(s->mode|=larg); 989 case SSL_CTRL_GET_MAX_CERT_LIST: 990 return(s->max_cert_list); 991 case SSL_CTRL_SET_MAX_CERT_LIST: 992 l=s->max_cert_list; 993 s->max_cert_list=larg; 994 return(l); 995 case SSL_CTRL_SET_MTU: 996 if (SSL_version(s) == DTLS1_VERSION) 997 { 998 s->d1->mtu = larg; 999 return larg; 1000 } 1001 return 0; 1002 default: 1003 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 1004 } 1005 } 1006 1007long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1008 { 1009 switch(cmd) 1010 { 1011 case SSL_CTRL_SET_MSG_CALLBACK: 1012 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1013 return 1; 1014 1015 default: 1016 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 1017 } 1018 } 1019 1020struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx) 1021 { 1022 return ctx->sessions; 1023 } 1024 1025long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg) 1026 { 1027 long l; 1028 1029 switch (cmd) 1030 { 1031 case SSL_CTRL_GET_READ_AHEAD: 1032 return(ctx->read_ahead); 1033 case SSL_CTRL_SET_READ_AHEAD: 1034 l=ctx->read_ahead; 1035 ctx->read_ahead=larg; 1036 return(l); 1037 1038 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1039 ctx->msg_callback_arg = parg; 1040 return 1; 1041 1042 case SSL_CTRL_GET_MAX_CERT_LIST: 1043 return(ctx->max_cert_list); 1044 case SSL_CTRL_SET_MAX_CERT_LIST: 1045 l=ctx->max_cert_list; 1046 ctx->max_cert_list=larg; 1047 return(l); 1048 1049 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1050 l=ctx->session_cache_size; 1051 ctx->session_cache_size=larg; 1052 return(l); 1053 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1054 return(ctx->session_cache_size); 1055 case SSL_CTRL_SET_SESS_CACHE_MODE: 1056 l=ctx->session_cache_mode; 1057 ctx->session_cache_mode=larg; 1058 return(l); 1059 case SSL_CTRL_GET_SESS_CACHE_MODE: 1060 return(ctx->session_cache_mode); 1061 1062 case SSL_CTRL_SESS_NUMBER: 1063 return(ctx->sessions->num_items); 1064 case SSL_CTRL_SESS_CONNECT: 1065 return(ctx->stats.sess_connect); 1066 case SSL_CTRL_SESS_CONNECT_GOOD: 1067 return(ctx->stats.sess_connect_good); 1068 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1069 return(ctx->stats.sess_connect_renegotiate); 1070 case SSL_CTRL_SESS_ACCEPT: 1071 return(ctx->stats.sess_accept); 1072 case SSL_CTRL_SESS_ACCEPT_GOOD: 1073 return(ctx->stats.sess_accept_good); 1074 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1075 return(ctx->stats.sess_accept_renegotiate); 1076 case SSL_CTRL_SESS_HIT: 1077 return(ctx->stats.sess_hit); 1078 case SSL_CTRL_SESS_CB_HIT: 1079 return(ctx->stats.sess_cb_hit); 1080 case SSL_CTRL_SESS_MISSES: 1081 return(ctx->stats.sess_miss); 1082 case SSL_CTRL_SESS_TIMEOUTS: 1083 return(ctx->stats.sess_timeout); 1084 case SSL_CTRL_SESS_CACHE_FULL: 1085 return(ctx->stats.sess_cache_full); 1086 case SSL_CTRL_OPTIONS: 1087 return(ctx->options|=larg); 1088 case SSL_CTRL_MODE: 1089 return(ctx->mode|=larg); 1090 default: 1091 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 1092 } 1093 } 1094 1095long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1096 { 1097 switch(cmd) 1098 { 1099 case SSL_CTRL_SET_MSG_CALLBACK: 1100 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1101 return 1; 1102 1103 default: 1104 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 1105 } 1106 } 1107 1108int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1109 { 1110 long l; 1111 1112 l=a->id-b->id; 1113 if (l == 0L) 1114 return(0); 1115 else 1116 return((l > 0)?1:-1); 1117 } 1118 1119int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1120 const SSL_CIPHER * const *bp) 1121 { 1122 long l; 1123 1124 l=(*ap)->id-(*bp)->id; 1125 if (l == 0L) 1126 return(0); 1127 else 1128 return((l > 0)?1:-1); 1129 } 1130 1131/** return a STACK of the ciphers available for the SSL and in order of 1132 * preference */ 1133STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) 1134 { 1135 if (s != NULL) 1136 { 1137 if (s->cipher_list != NULL) 1138 { 1139 return(s->cipher_list); 1140 } 1141 else if ((s->ctx != NULL) && 1142 (s->ctx->cipher_list != NULL)) 1143 { 1144 return(s->ctx->cipher_list); 1145 } 1146 } 1147 return(NULL); 1148 } 1149 1150/** return a STACK of the ciphers available for the SSL and in order of 1151 * algorithm id */ 1152STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 1153 { 1154 if (s != NULL) 1155 { 1156 if (s->cipher_list_by_id != NULL) 1157 { 1158 return(s->cipher_list_by_id); 1159 } 1160 else if ((s->ctx != NULL) && 1161 (s->ctx->cipher_list_by_id != NULL)) 1162 { 1163 return(s->ctx->cipher_list_by_id); 1164 } 1165 } 1166 return(NULL); 1167 } 1168 1169/** The old interface to get the same thing as SSL_get_ciphers() */ 1170const char *SSL_get_cipher_list(const SSL *s,int n) 1171 { 1172 SSL_CIPHER *c; 1173 STACK_OF(SSL_CIPHER) *sk; 1174 1175 if (s == NULL) return(NULL); 1176 sk=SSL_get_ciphers(s); 1177 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1178 return(NULL); 1179 c=sk_SSL_CIPHER_value(sk,n); 1180 if (c == NULL) return(NULL); 1181 return(c->name); 1182 } 1183 1184/** specify the ciphers to be used by default by the SSL_CTX */ 1185int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1186 { 1187 STACK_OF(SSL_CIPHER) *sk; 1188 1189 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 1190 &ctx->cipher_list_by_id,str); 1191 /* ssl_create_cipher_list may return an empty stack if it 1192 * was unable to find a cipher matching the given rule string 1193 * (for example if the rule string specifies a cipher which 1194 * has been disabled). This is not an error as far as 1195 * ssl_create_cipher_list is concerned, and hence 1196 * ctx->cipher_list and ctx->cipher_list_by_id has been 1197 * updated. */ 1198 if (sk == NULL) 1199 return 0; 1200 else if (sk_SSL_CIPHER_num(sk) == 0) 1201 { 1202 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1203 return 0; 1204 } 1205 return 1; 1206 } 1207 1208/** specify the ciphers to be used by the SSL */ 1209int SSL_set_cipher_list(SSL *s,const char *str) 1210 { 1211 STACK_OF(SSL_CIPHER) *sk; 1212 1213 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 1214 &s->cipher_list_by_id,str); 1215 /* see comment in SSL_CTX_set_cipher_list */ 1216 if (sk == NULL) 1217 return 0; 1218 else if (sk_SSL_CIPHER_num(sk) == 0) 1219 { 1220 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1221 return 0; 1222 } 1223 return 1; 1224 } 1225 1226/* works well for SSLv2, not so good for SSLv3 */ 1227char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len) 1228 { 1229 char *end; 1230 STACK_OF(SSL_CIPHER) *sk; 1231 SSL_CIPHER *c; 1232 size_t curlen = 0; 1233 int i; 1234 1235 if ((s->session == NULL) || (s->session->ciphers == NULL) || 1236 (len < 2)) 1237 return(NULL); 1238 1239 sk=s->session->ciphers; 1240 buf[0] = '\0'; 1241 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1242 { 1243 c=sk_SSL_CIPHER_value(sk,i); 1244 end = buf + curlen; 1245 if (strlcat(buf, c->name, len) >= len || 1246 (curlen = strlcat(buf, ":", len)) >= len) 1247 { 1248 /* remove truncated cipher from list */ 1249 *end = '\0'; 1250 break; 1251 } 1252 } 1253 /* remove trailing colon */ 1254 if ((end = strrchr(buf, ':')) != NULL) 1255 *end = '\0'; 1256 return(buf); 1257 } 1258 1259int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p, 1260 int (*put_cb)(const SSL_CIPHER *, unsigned char *)) 1261 { 1262 int i,j=0; 1263 SSL_CIPHER *c; 1264 unsigned char *q; 1265#ifndef OPENSSL_NO_KRB5 1266 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx); 1267#endif /* OPENSSL_NO_KRB5 */ 1268 1269 if (sk == NULL) return(0); 1270 q=p; 1271 1272 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1273 { 1274 c=sk_SSL_CIPHER_value(sk,i); 1275#ifndef OPENSSL_NO_KRB5 1276 if ((c->algorithms & SSL_KRB5) && nokrb5) 1277 continue; 1278#endif /* OPENSSL_NO_KRB5 */ 1279 1280 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p); 1281 p+=j; 1282 } 1283 return(p-q); 1284 } 1285 1286STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1287 STACK_OF(SSL_CIPHER) **skp) 1288 { 1289 SSL_CIPHER *c; 1290 STACK_OF(SSL_CIPHER) *sk; 1291 int i,n; 1292 1293 n=ssl_put_cipher_by_char(s,NULL,NULL); 1294 if ((num%n) != 0) 1295 { 1296 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1297 return(NULL); 1298 } 1299 if ((skp == NULL) || (*skp == NULL)) 1300 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1301 else 1302 { 1303 sk= *skp; 1304 sk_SSL_CIPHER_zero(sk); 1305 } 1306 1307 for (i=0; i<num; i+=n) 1308 { 1309 c=ssl_get_cipher_by_char(s,p); 1310 p+=n; 1311 if (c != NULL) 1312 { 1313 if (!sk_SSL_CIPHER_push(sk,c)) 1314 { 1315 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1316 goto err; 1317 } 1318 } 1319 } 1320 1321 if (skp != NULL) 1322 *skp=sk; 1323 return(sk); 1324err: 1325 if ((skp == NULL) || (*skp == NULL)) 1326 sk_SSL_CIPHER_free(sk); 1327 return(NULL); 1328 } 1329 1330#ifndef OPENSSL_NO_TLSEXT 1331/** return a servername extension value if provided in Client Hello, or NULL. 1332 * So far, only host_name types are defined (RFC 3546). 1333 */ 1334 1335const char *SSL_get_servername(const SSL *s, const int type) 1336 { 1337 if (type != TLSEXT_NAMETYPE_host_name) 1338 return NULL; 1339 1340 return s->session && !s->tlsext_hostname ? 1341 s->session->tlsext_hostname : 1342 s->tlsext_hostname; 1343 } 1344 1345int SSL_get_servername_type(const SSL *s) 1346 { 1347 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname)) 1348 return TLSEXT_NAMETYPE_host_name; 1349 return -1; 1350 } 1351#endif 1352 1353unsigned long SSL_SESSION_hash(const SSL_SESSION *a) 1354 { 1355 unsigned long l; 1356 1357 l=(unsigned long) 1358 ((unsigned int) a->session_id[0] )| 1359 ((unsigned int) a->session_id[1]<< 8L)| 1360 ((unsigned long)a->session_id[2]<<16L)| 1361 ((unsigned long)a->session_id[3]<<24L); 1362 return(l); 1363 } 1364 1365/* NB: If this function (or indeed the hash function which uses a sort of 1366 * coarser function than this one) is changed, ensure 1367 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1368 * able to construct an SSL_SESSION that will collide with any existing session 1369 * with a matching session ID. */ 1370int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b) 1371 { 1372 if (a->ssl_version != b->ssl_version) 1373 return(1); 1374 if (a->session_id_length != b->session_id_length) 1375 return(1); 1376 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1377 } 1378 1379/* These wrapper functions should remain rather than redeclaring 1380 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1381 * variable. The reason is that the functions aren't static, they're exposed via 1382 * ssl.h. */ 1383static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *) 1384static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *) 1385 1386SSL_CTX *SSL_CTX_new(SSL_METHOD *meth) 1387 { 1388 SSL_CTX *ret=NULL; 1389 1390 if (meth == NULL) 1391 { 1392 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1393 return(NULL); 1394 } 1395 1396#ifdef OPENSSL_FIPS 1397 if (FIPS_mode() && (meth->version < TLS1_VERSION)) 1398 { 1399 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE); 1400 return NULL; 1401 } 1402#endif 1403 1404 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1405 { 1406 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1407 goto err; 1408 } 1409 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); 1410 if (ret == NULL) 1411 goto err; 1412 1413 memset(ret,0,sizeof(SSL_CTX)); 1414 1415 ret->method=meth; 1416 1417 ret->cert_store=NULL; 1418 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1419 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1420 ret->session_cache_head=NULL; 1421 ret->session_cache_tail=NULL; 1422 1423 /* We take the system default */ 1424 ret->session_timeout=meth->get_timeout(); 1425 1426 ret->new_session_cb=0; 1427 ret->remove_session_cb=0; 1428 ret->get_session_cb=0; 1429 ret->generate_session_id=0; 1430 1431 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1432 1433 ret->references=1; 1434 ret->quiet_shutdown=0; 1435 1436/* ret->cipher=NULL;*/ 1437/* ret->s2->challenge=NULL; 1438 ret->master_key=NULL; 1439 ret->key_arg=NULL; 1440 ret->s2->conn_id=NULL; */ 1441 1442 ret->info_callback=NULL; 1443 1444 ret->app_verify_callback=0; 1445 ret->app_verify_arg=NULL; 1446 1447 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT; 1448 ret->read_ahead=0; 1449 ret->msg_callback=0; 1450 ret->msg_callback_arg=NULL; 1451 ret->verify_mode=SSL_VERIFY_NONE; 1452#if 0 1453 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1454#endif 1455 ret->sid_ctx_length=0; 1456 ret->default_verify_callback=NULL; 1457 if ((ret->cert=ssl_cert_new()) == NULL) 1458 goto err; 1459 1460 ret->default_passwd_callback=0; 1461 ret->default_passwd_callback_userdata=NULL; 1462 ret->client_cert_cb=0; 1463 ret->app_gen_cookie_cb=0; 1464 ret->app_verify_cookie_cb=0; 1465 1466 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash), 1467 LHASH_COMP_FN(SSL_SESSION_cmp)); 1468 if (ret->sessions == NULL) goto err; 1469 ret->cert_store=X509_STORE_new(); 1470 if (ret->cert_store == NULL) goto err; 1471 1472 ssl_create_cipher_list(ret->method, 1473 &ret->cipher_list,&ret->cipher_list_by_id, 1474 SSL_DEFAULT_CIPHER_LIST); 1475 if (ret->cipher_list == NULL 1476 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1477 { 1478 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1479 goto err2; 1480 } 1481 1482 ret->param = X509_VERIFY_PARAM_new(); 1483 if (!ret->param) 1484 goto err; 1485 1486 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1487 { 1488 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1489 goto err2; 1490 } 1491 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1492 { 1493 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1494 goto err2; 1495 } 1496 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1497 { 1498 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1499 goto err2; 1500 } 1501 1502 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1503 goto err; 1504 1505 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 1506 1507 ret->extra_certs=NULL; 1508 ret->comp_methods=SSL_COMP_get_compression_methods(); 1509 1510#ifndef OPENSSL_NO_TLSEXT 1511 ret->tlsext_servername_callback = 0; 1512 ret->tlsext_servername_arg = NULL; 1513 /* Setup RFC4507 ticket keys */ 1514 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0) 1515 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) 1516 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) 1517 ret->options |= SSL_OP_NO_TICKET; 1518 1519 ret->tlsext_status_cb = 0; 1520 ret->tlsext_status_arg = NULL; 1521 1522#endif 1523 1524#ifndef OPENSSL_NO_ENGINE 1525 ret->client_cert_engine = NULL; 1526#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1527#define eng_strx(x) #x 1528#define eng_str(x) eng_strx(x) 1529 /* Use specific client engine automatically... ignore errors */ 1530 { 1531 ENGINE *eng; 1532 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1533 if (!eng) 1534 { 1535 ERR_clear_error(); 1536 ENGINE_load_builtin_engines(); 1537 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1538 } 1539 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1540 ERR_clear_error(); 1541 } 1542#endif 1543#endif 1544 1545 return(ret); 1546err: 1547 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1548err2: 1549 if (ret != NULL) SSL_CTX_free(ret); 1550 return(NULL); 1551 } 1552 1553#if 0 1554static void SSL_COMP_free(SSL_COMP *comp) 1555 { OPENSSL_free(comp); } 1556#endif 1557 1558void SSL_CTX_free(SSL_CTX *a) 1559 { 1560 int i; 1561 1562 if (a == NULL) return; 1563 1564 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1565#ifdef REF_PRINT 1566 REF_PRINT("SSL_CTX",a); 1567#endif 1568 if (i > 0) return; 1569#ifdef REF_CHECK 1570 if (i < 0) 1571 { 1572 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1573 abort(); /* ok */ 1574 } 1575#endif 1576 1577 if (a->param) 1578 X509_VERIFY_PARAM_free(a->param); 1579 1580 /* 1581 * Free internal session cache. However: the remove_cb() may reference 1582 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1583 * after the sessions were flushed. 1584 * As the ex_data handling routines might also touch the session cache, 1585 * the most secure solution seems to be: empty (flush) the cache, then 1586 * free ex_data, then finally free the cache. 1587 * (See ticket [openssl.org #212].) 1588 */ 1589 if (a->sessions != NULL) 1590 SSL_CTX_flush_sessions(a,0); 1591 1592 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); 1593 1594 if (a->sessions != NULL) 1595 lh_free(a->sessions); 1596 1597 if (a->cert_store != NULL) 1598 X509_STORE_free(a->cert_store); 1599 if (a->cipher_list != NULL) 1600 sk_SSL_CIPHER_free(a->cipher_list); 1601 if (a->cipher_list_by_id != NULL) 1602 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1603 if (a->cert != NULL) 1604 ssl_cert_free(a->cert); 1605 if (a->client_CA != NULL) 1606 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1607 if (a->extra_certs != NULL) 1608 sk_X509_pop_free(a->extra_certs,X509_free); 1609#if 0 /* This should never be done, since it removes a global database */ 1610 if (a->comp_methods != NULL) 1611 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1612#else 1613 a->comp_methods = NULL; 1614#endif 1615#ifndef OPENSSL_NO_ENGINE 1616 if (a->client_cert_engine) 1617 ENGINE_finish(a->client_cert_engine); 1618#endif 1619 OPENSSL_free(a); 1620 } 1621 1622void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1623 { 1624 ctx->default_passwd_callback=cb; 1625 } 1626 1627void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1628 { 1629 ctx->default_passwd_callback_userdata=u; 1630 } 1631 1632void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg) 1633 { 1634 ctx->app_verify_callback=cb; 1635 ctx->app_verify_arg=arg; 1636 } 1637 1638void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1639 { 1640 ctx->verify_mode=mode; 1641 ctx->default_verify_callback=cb; 1642 } 1643 1644void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1645 { 1646 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1647 } 1648 1649void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) 1650 { 1651 CERT_PKEY *cpk; 1652 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1653 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1654 int rsa_tmp_export,dh_tmp_export,kl; 1655 unsigned long mask,emask; 1656 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size; 1657#ifndef OPENSSL_NO_ECDH 1658 int have_ecdh_tmp; 1659#endif 1660 X509 *x = NULL; 1661 EVP_PKEY *ecc_pkey = NULL; 1662 int signature_nid = 0; 1663 1664 if (c == NULL) return; 1665 1666 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1667 1668#ifndef OPENSSL_NO_RSA 1669 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1670 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1671 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1672#else 1673 rsa_tmp=rsa_tmp_export=0; 1674#endif 1675#ifndef OPENSSL_NO_DH 1676 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1677 dh_tmp_export=(c->dh_tmp_cb != NULL || 1678 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1679#else 1680 dh_tmp=dh_tmp_export=0; 1681#endif 1682 1683#ifndef OPENSSL_NO_ECDH 1684 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL); 1685#endif 1686 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1687 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1688 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1689 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1690 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1691 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1692 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1693 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1694 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1695 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1696 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1697/* FIX THIS EAY EAY EAY */ 1698 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1699 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1700 cpk= &(c->pkeys[SSL_PKEY_ECC]); 1701 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL); 1702 mask=0; 1703 emask=0; 1704 1705#ifdef CIPHER_DEBUG 1706 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1707 rsa_tmp,rsa_tmp_export,dh_tmp, 1708 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1709#endif 1710 1711 if (rsa_enc || (rsa_tmp && rsa_sign)) 1712 mask|=SSL_kRSA; 1713 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1714 emask|=SSL_kRSA; 1715 1716#if 0 1717 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1718 if ( (dh_tmp || dh_rsa || dh_dsa) && 1719 (rsa_enc || rsa_sign || dsa_sign)) 1720 mask|=SSL_kEDH; 1721 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1722 (rsa_enc || rsa_sign || dsa_sign)) 1723 emask|=SSL_kEDH; 1724#endif 1725 1726 if (dh_tmp_export) 1727 emask|=SSL_kEDH; 1728 1729 if (dh_tmp) 1730 mask|=SSL_kEDH; 1731 1732 if (dh_rsa) mask|=SSL_kDHr; 1733 if (dh_rsa_export) emask|=SSL_kDHr; 1734 1735 if (dh_dsa) mask|=SSL_kDHd; 1736 if (dh_dsa_export) emask|=SSL_kDHd; 1737 1738 if (rsa_enc || rsa_sign) 1739 { 1740 mask|=SSL_aRSA; 1741 emask|=SSL_aRSA; 1742 } 1743 1744 if (dsa_sign) 1745 { 1746 mask|=SSL_aDSS; 1747 emask|=SSL_aDSS; 1748 } 1749 1750 mask|=SSL_aNULL; 1751 emask|=SSL_aNULL; 1752 1753#ifndef OPENSSL_NO_KRB5 1754 mask|=SSL_kKRB5|SSL_aKRB5; 1755 emask|=SSL_kKRB5|SSL_aKRB5; 1756#endif 1757 1758 /* An ECC certificate may be usable for ECDH and/or 1759 * ECDSA cipher suites depending on the key usage extension. 1760 */ 1761 if (have_ecc_cert) 1762 { 1763 /* This call populates extension flags (ex_flags) */ 1764 x = (c->pkeys[SSL_PKEY_ECC]).x509; 1765 X509_check_purpose(x, -1, 0); 1766 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1767 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; 1768 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1769 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; 1770 ecc_pkey = X509_get_pubkey(x); 1771 ecc_pkey_size = (ecc_pkey != NULL) ? 1772 EVP_PKEY_bits(ecc_pkey) : 0; 1773 EVP_PKEY_free(ecc_pkey); 1774 if ((x->sig_alg) && (x->sig_alg->algorithm)) 1775 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 1776#ifndef OPENSSL_NO_ECDH 1777 if (ecdh_ok) 1778 { 1779 if ((signature_nid == NID_md5WithRSAEncryption) || 1780 (signature_nid == NID_md4WithRSAEncryption) || 1781 (signature_nid == NID_md2WithRSAEncryption)) 1782 { 1783 mask|=SSL_kECDH|SSL_aRSA; 1784 if (ecc_pkey_size <= 163) 1785 emask|=SSL_kECDH|SSL_aRSA; 1786 } 1787 if (signature_nid == NID_ecdsa_with_SHA1) 1788 { 1789 mask|=SSL_kECDH|SSL_aECDSA; 1790 if (ecc_pkey_size <= 163) 1791 emask|=SSL_kECDH|SSL_aECDSA; 1792 } 1793 } 1794#endif 1795#ifndef OPENSSL_NO_ECDSA 1796 if (ecdsa_ok) 1797 { 1798 mask|=SSL_aECDSA; 1799 emask|=SSL_aECDSA; 1800 } 1801#endif 1802 } 1803 1804#ifndef OPENSSL_NO_ECDH 1805 if (have_ecdh_tmp) 1806 { 1807 mask|=SSL_kECDHE; 1808 emask|=SSL_kECDHE; 1809 } 1810#endif 1811 c->mask=mask; 1812 c->export_mask=emask; 1813 c->valid=1; 1814 } 1815 1816/* This handy macro borrowed from crypto/x509v3/v3_purp.c */ 1817#define ku_reject(x, usage) \ 1818 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) 1819 1820int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs) 1821 { 1822 unsigned long alg = cs->algorithms; 1823 EVP_PKEY *pkey = NULL; 1824 int keysize = 0; 1825 int signature_nid = 0; 1826 1827 if (SSL_C_IS_EXPORT(cs)) 1828 { 1829 /* ECDH key length in export ciphers must be <= 163 bits */ 1830 pkey = X509_get_pubkey(x); 1831 if (pkey == NULL) return 0; 1832 keysize = EVP_PKEY_bits(pkey); 1833 EVP_PKEY_free(pkey); 1834 if (keysize > 163) return 0; 1835 } 1836 1837 /* This call populates the ex_flags field correctly */ 1838 X509_check_purpose(x, -1, 0); 1839 if ((x->sig_alg) && (x->sig_alg->algorithm)) 1840 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 1841 if (alg & SSL_kECDH) 1842 { 1843 /* key usage, if present, must allow key agreement */ 1844 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) 1845 { 1846 return 0; 1847 } 1848 if (alg & SSL_aECDSA) 1849 { 1850 /* signature alg must be ECDSA */ 1851 if (signature_nid != NID_ecdsa_with_SHA1) 1852 { 1853 return 0; 1854 } 1855 } 1856 if (alg & SSL_aRSA) 1857 { 1858 /* signature alg must be RSA */ 1859 if ((signature_nid != NID_md5WithRSAEncryption) && 1860 (signature_nid != NID_md4WithRSAEncryption) && 1861 (signature_nid != NID_md2WithRSAEncryption)) 1862 { 1863 return 0; 1864 } 1865 } 1866 } 1867 else if (alg & SSL_aECDSA) 1868 { 1869 /* key usage, if present, must allow signing */ 1870 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) 1871 { 1872 return 0; 1873 } 1874 } 1875 1876 return 1; /* all checks are ok */ 1877 } 1878 1879/* THIS NEEDS CLEANING UP */ 1880X509 *ssl_get_server_send_cert(SSL *s) 1881 { 1882 unsigned long alg,mask,kalg; 1883 CERT *c; 1884 int i,is_export; 1885 1886 c=s->cert; 1887 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 1888 alg=s->s3->tmp.new_cipher->algorithms; 1889 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 1890 mask=is_export?c->export_mask:c->mask; 1891 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1892 1893 if (kalg & SSL_kECDH) 1894 { 1895 /* we don't need to look at SSL_kECDHE 1896 * since no certificate is needed for 1897 * anon ECDH and for authenticated 1898 * ECDHE, the check for the auth 1899 * algorithm will set i correctly 1900 * NOTE: For ECDH-RSA, we need an ECC 1901 * not an RSA cert but for ECDHE-RSA 1902 * we need an RSA cert. Placing the 1903 * checks for SSL_kECDH before RSA 1904 * checks ensures the correct cert is chosen. 1905 */ 1906 i=SSL_PKEY_ECC; 1907 } 1908 else if (kalg & SSL_aECDSA) 1909 { 1910 i=SSL_PKEY_ECC; 1911 } 1912 else if (kalg & SSL_kDHr) 1913 i=SSL_PKEY_DH_RSA; 1914 else if (kalg & SSL_kDHd) 1915 i=SSL_PKEY_DH_DSA; 1916 else if (kalg & SSL_aDSS) 1917 i=SSL_PKEY_DSA_SIGN; 1918 else if (kalg & SSL_aRSA) 1919 { 1920 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1921 i=SSL_PKEY_RSA_SIGN; 1922 else 1923 i=SSL_PKEY_RSA_ENC; 1924 } 1925 else if (kalg & SSL_aKRB5) 1926 { 1927 /* VRS something else here? */ 1928 return(NULL); 1929 } 1930 else /* if (kalg & SSL_aNULL) */ 1931 { 1932 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR); 1933 return(NULL); 1934 } 1935 if (c->pkeys[i].x509 == NULL) return(NULL); 1936 1937 return(c->pkeys[i].x509); 1938 } 1939 1940EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher) 1941 { 1942 unsigned long alg; 1943 CERT *c; 1944 1945 alg=cipher->algorithms; 1946 c=s->cert; 1947 1948 if ((alg & SSL_aDSS) && 1949 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 1950 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 1951 else if (alg & SSL_aRSA) 1952 { 1953 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 1954 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 1955 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 1956 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 1957 else 1958 return(NULL); 1959 } 1960 else if ((alg & SSL_aECDSA) && 1961 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 1962 return(c->pkeys[SSL_PKEY_ECC].privatekey); 1963 else /* if (alg & SSL_aNULL) */ 1964 { 1965 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR); 1966 return(NULL); 1967 } 1968 } 1969 1970void ssl_update_cache(SSL *s,int mode) 1971 { 1972 int i; 1973 1974 /* If the session_id_length is 0, we are not supposed to cache it, 1975 * and it would be rather hard to do anyway :-) */ 1976 if (s->session->session_id_length == 0) return; 1977 1978 i=s->ctx->session_cache_mode; 1979 if ((i & mode) && (!s->hit) 1980 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 1981 || SSL_CTX_add_session(s->ctx,s->session)) 1982 && (s->ctx->new_session_cb != NULL)) 1983 { 1984 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 1985 if (!s->ctx->new_session_cb(s,s->session)) 1986 SSL_SESSION_free(s->session); 1987 } 1988 1989 /* auto flush every 255 connections */ 1990 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 1991 ((i & mode) == mode)) 1992 { 1993 if ( (((mode & SSL_SESS_CACHE_CLIENT) 1994 ?s->ctx->stats.sess_connect_good 1995 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff) 1996 { 1997 SSL_CTX_flush_sessions(s->ctx,(unsigned long)time(NULL)); 1998 } 1999 } 2000 } 2001 2002SSL_METHOD *SSL_get_ssl_method(SSL *s) 2003 { 2004 return(s->method); 2005 } 2006 2007int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth) 2008 { 2009 int conn= -1; 2010 int ret=1; 2011 2012 if (s->method != meth) 2013 { 2014 if (s->handshake_func != NULL) 2015 conn=(s->handshake_func == s->method->ssl_connect); 2016 2017 if (s->method->version == meth->version) 2018 s->method=meth; 2019 else 2020 { 2021 s->method->ssl_free(s); 2022 s->method=meth; 2023 ret=s->method->ssl_new(s); 2024 } 2025 2026 if (conn == 1) 2027 s->handshake_func=meth->ssl_connect; 2028 else if (conn == 0) 2029 s->handshake_func=meth->ssl_accept; 2030 } 2031 return(ret); 2032 } 2033 2034int SSL_get_error(const SSL *s,int i) 2035 { 2036 int reason; 2037 unsigned long l; 2038 BIO *bio; 2039 2040 if (i > 0) return(SSL_ERROR_NONE); 2041 2042 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2043 * etc, where we do encode the error */ 2044 if ((l=ERR_peek_error()) != 0) 2045 { 2046 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2047 return(SSL_ERROR_SYSCALL); 2048 else 2049 return(SSL_ERROR_SSL); 2050 } 2051 2052 if ((i < 0) && SSL_want_read(s)) 2053 { 2054 bio=SSL_get_rbio(s); 2055 if (BIO_should_read(bio)) 2056 return(SSL_ERROR_WANT_READ); 2057 else if (BIO_should_write(bio)) 2058 /* This one doesn't make too much sense ... We never try 2059 * to write to the rbio, and an application program where 2060 * rbio and wbio are separate couldn't even know what it 2061 * should wait for. 2062 * However if we ever set s->rwstate incorrectly 2063 * (so that we have SSL_want_read(s) instead of 2064 * SSL_want_write(s)) and rbio and wbio *are* the same, 2065 * this test works around that bug; so it might be safer 2066 * to keep it. */ 2067 return(SSL_ERROR_WANT_WRITE); 2068 else if (BIO_should_io_special(bio)) 2069 { 2070 reason=BIO_get_retry_reason(bio); 2071 if (reason == BIO_RR_CONNECT) 2072 return(SSL_ERROR_WANT_CONNECT); 2073 else if (reason == BIO_RR_ACCEPT) 2074 return(SSL_ERROR_WANT_ACCEPT); 2075 else 2076 return(SSL_ERROR_SYSCALL); /* unknown */ 2077 } 2078 } 2079 2080 if ((i < 0) && SSL_want_write(s)) 2081 { 2082 bio=SSL_get_wbio(s); 2083 if (BIO_should_write(bio)) 2084 return(SSL_ERROR_WANT_WRITE); 2085 else if (BIO_should_read(bio)) 2086 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 2087 return(SSL_ERROR_WANT_READ); 2088 else if (BIO_should_io_special(bio)) 2089 { 2090 reason=BIO_get_retry_reason(bio); 2091 if (reason == BIO_RR_CONNECT) 2092 return(SSL_ERROR_WANT_CONNECT); 2093 else if (reason == BIO_RR_ACCEPT) 2094 return(SSL_ERROR_WANT_ACCEPT); 2095 else 2096 return(SSL_ERROR_SYSCALL); 2097 } 2098 } 2099 if ((i < 0) && SSL_want_x509_lookup(s)) 2100 { 2101 return(SSL_ERROR_WANT_X509_LOOKUP); 2102 } 2103 2104 if (i == 0) 2105 { 2106 if (s->version == SSL2_VERSION) 2107 { 2108 /* assume it is the socket being closed */ 2109 return(SSL_ERROR_ZERO_RETURN); 2110 } 2111 else 2112 { 2113 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2114 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2115 return(SSL_ERROR_ZERO_RETURN); 2116 } 2117 } 2118 return(SSL_ERROR_SYSCALL); 2119 } 2120 2121int SSL_do_handshake(SSL *s) 2122 { 2123 int ret=1; 2124 2125 if (s->handshake_func == NULL) 2126 { 2127 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 2128 return(-1); 2129 } 2130 2131 s->method->ssl_renegotiate_check(s); 2132 2133 if (SSL_in_init(s) || SSL_in_before(s)) 2134 { 2135 ret=s->handshake_func(s); 2136 } 2137 return(ret); 2138 } 2139 2140/* For the next 2 functions, SSL_clear() sets shutdown and so 2141 * one of these calls will reset it */ 2142void SSL_set_accept_state(SSL *s) 2143 { 2144 s->server=1; 2145 s->shutdown=0; 2146 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 2147 s->handshake_func=s->method->ssl_accept; 2148 /* clear the current cipher */ 2149 ssl_clear_cipher_ctx(s); 2150 } 2151 2152void SSL_set_connect_state(SSL *s) 2153 { 2154 s->server=0; 2155 s->shutdown=0; 2156 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 2157 s->handshake_func=s->method->ssl_connect; 2158 /* clear the current cipher */ 2159 ssl_clear_cipher_ctx(s); 2160 } 2161 2162int ssl_undefined_function(SSL *s) 2163 { 2164 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2165 return(0); 2166 } 2167 2168int ssl_undefined_void_function(void) 2169 { 2170 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2171 return(0); 2172 } 2173 2174int ssl_undefined_const_function(const SSL *s) 2175 { 2176 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2177 return(0); 2178 } 2179 2180SSL_METHOD *ssl_bad_method(int ver) 2181 { 2182 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2183 return(NULL); 2184 } 2185 2186const char *SSL_get_version(const SSL *s) 2187 { 2188 if (s->version == TLS1_VERSION) 2189 return("TLSv1"); 2190 else if (s->version == SSL3_VERSION) 2191 return("SSLv3"); 2192 else if (s->version == SSL2_VERSION) 2193 return("SSLv2"); 2194 else 2195 return("unknown"); 2196 } 2197 2198SSL *SSL_dup(SSL *s) 2199 { 2200 STACK_OF(X509_NAME) *sk; 2201 X509_NAME *xn; 2202 SSL *ret; 2203 int i; 2204 2205 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2206 return(NULL); 2207 2208 ret->version = s->version; 2209 ret->type = s->type; 2210 ret->method = s->method; 2211 2212 if (s->session != NULL) 2213 { 2214 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 2215 SSL_copy_session_id(ret,s); 2216 } 2217 else 2218 { 2219 /* No session has been established yet, so we have to expect 2220 * that s->cert or ret->cert will be changed later -- 2221 * they should not both point to the same object, 2222 * and thus we can't use SSL_copy_session_id. */ 2223 2224 ret->method->ssl_free(ret); 2225 ret->method = s->method; 2226 ret->method->ssl_new(ret); 2227 2228 if (s->cert != NULL) 2229 { 2230 if (ret->cert != NULL) 2231 { 2232 ssl_cert_free(ret->cert); 2233 } 2234 ret->cert = ssl_cert_dup(s->cert); 2235 if (ret->cert == NULL) 2236 goto err; 2237 } 2238 2239 SSL_set_session_id_context(ret, 2240 s->sid_ctx, s->sid_ctx_length); 2241 } 2242 2243 ret->options=s->options; 2244 ret->mode=s->mode; 2245 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s)); 2246 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 2247 ret->msg_callback = s->msg_callback; 2248 ret->msg_callback_arg = s->msg_callback_arg; 2249 SSL_set_verify(ret,SSL_get_verify_mode(s), 2250 SSL_get_verify_callback(s)); 2251 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 2252 ret->generate_session_id = s->generate_session_id; 2253 2254 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 2255 2256 ret->debug=s->debug; 2257 2258 /* copy app data, a little dangerous perhaps */ 2259 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) 2260 goto err; 2261 2262 /* setup rbio, and wbio */ 2263 if (s->rbio != NULL) 2264 { 2265 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2266 goto err; 2267 } 2268 if (s->wbio != NULL) 2269 { 2270 if (s->wbio != s->rbio) 2271 { 2272 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2273 goto err; 2274 } 2275 else 2276 ret->wbio=ret->rbio; 2277 } 2278 ret->rwstate = s->rwstate; 2279 ret->in_handshake = s->in_handshake; 2280 ret->handshake_func = s->handshake_func; 2281 ret->server = s->server; 2282 ret->new_session = s->new_session; 2283 ret->quiet_shutdown = s->quiet_shutdown; 2284 ret->shutdown=s->shutdown; 2285 ret->state=s->state; /* SSL_dup does not really work at any state, though */ 2286 ret->rstate=s->rstate; 2287 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */ 2288 ret->hit=s->hit; 2289 2290 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2291 2292 /* dup the cipher_list and cipher_list_by_id stacks */ 2293 if (s->cipher_list != NULL) 2294 { 2295 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2296 goto err; 2297 } 2298 if (s->cipher_list_by_id != NULL) 2299 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 2300 == NULL) 2301 goto err; 2302 2303 /* Dup the client_CA list */ 2304 if (s->client_CA != NULL) 2305 { 2306 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 2307 ret->client_CA=sk; 2308 for (i=0; i<sk_X509_NAME_num(sk); i++) 2309 { 2310 xn=sk_X509_NAME_value(sk,i); 2311 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 2312 { 2313 X509_NAME_free(xn); 2314 goto err; 2315 } 2316 } 2317 } 2318 2319 if (0) 2320 { 2321err: 2322 if (ret != NULL) SSL_free(ret); 2323 ret=NULL; 2324 } 2325 return(ret); 2326 } 2327 2328void ssl_clear_cipher_ctx(SSL *s) 2329 { 2330 if (s->enc_read_ctx != NULL) 2331 { 2332 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 2333 OPENSSL_free(s->enc_read_ctx); 2334 s->enc_read_ctx=NULL; 2335 } 2336 if (s->enc_write_ctx != NULL) 2337 { 2338 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 2339 OPENSSL_free(s->enc_write_ctx); 2340 s->enc_write_ctx=NULL; 2341 } 2342#ifndef OPENSSL_NO_COMP 2343 if (s->expand != NULL) 2344 { 2345 COMP_CTX_free(s->expand); 2346 s->expand=NULL; 2347 } 2348 if (s->compress != NULL) 2349 { 2350 COMP_CTX_free(s->compress); 2351 s->compress=NULL; 2352 } 2353#endif 2354 } 2355 2356/* Fix this function so that it takes an optional type parameter */ 2357X509 *SSL_get_certificate(const SSL *s) 2358 { 2359 if (s->cert != NULL) 2360 return(s->cert->key->x509); 2361 else 2362 return(NULL); 2363 } 2364 2365/* Fix this function so that it takes an optional type parameter */ 2366EVP_PKEY *SSL_get_privatekey(SSL *s) 2367 { 2368 if (s->cert != NULL) 2369 return(s->cert->key->privatekey); 2370 else 2371 return(NULL); 2372 } 2373 2374SSL_CIPHER *SSL_get_current_cipher(const SSL *s) 2375 { 2376 if ((s->session != NULL) && (s->session->cipher != NULL)) 2377 return(s->session->cipher); 2378 return(NULL); 2379 } 2380#ifdef OPENSSL_NO_COMP 2381const void *SSL_get_current_compression(SSL *s) 2382 { 2383 return NULL; 2384 } 2385const void *SSL_get_current_expansion(SSL *s) 2386 { 2387 return NULL; 2388 } 2389#else 2390 2391const COMP_METHOD *SSL_get_current_compression(SSL *s) 2392 { 2393 if (s->compress != NULL) 2394 return(s->compress->meth); 2395 return(NULL); 2396 } 2397 2398const COMP_METHOD *SSL_get_current_expansion(SSL *s) 2399 { 2400 if (s->expand != NULL) 2401 return(s->expand->meth); 2402 return(NULL); 2403 } 2404#endif 2405 2406int ssl_init_wbio_buffer(SSL *s,int push) 2407 { 2408 BIO *bbio; 2409 2410 if (s->bbio == NULL) 2411 { 2412 bbio=BIO_new(BIO_f_buffer()); 2413 if (bbio == NULL) return(0); 2414 s->bbio=bbio; 2415 } 2416 else 2417 { 2418 bbio=s->bbio; 2419 if (s->bbio == s->wbio) 2420 s->wbio=BIO_pop(s->wbio); 2421 } 2422 (void)BIO_reset(bbio); 2423/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2424 if (!BIO_set_read_buffer_size(bbio,1)) 2425 { 2426 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 2427 return(0); 2428 } 2429 if (push) 2430 { 2431 if (s->wbio != bbio) 2432 s->wbio=BIO_push(bbio,s->wbio); 2433 } 2434 else 2435 { 2436 if (s->wbio == bbio) 2437 s->wbio=BIO_pop(bbio); 2438 } 2439 return(1); 2440 } 2441 2442void ssl_free_wbio_buffer(SSL *s) 2443 { 2444 if (s->bbio == NULL) return; 2445 2446 if (s->bbio == s->wbio) 2447 { 2448 /* remove buffering */ 2449 s->wbio=BIO_pop(s->wbio); 2450#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */ 2451 assert(s->wbio != NULL); 2452#endif 2453 } 2454 BIO_free(s->bbio); 2455 s->bbio=NULL; 2456 } 2457 2458void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 2459 { 2460 ctx->quiet_shutdown=mode; 2461 } 2462 2463int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2464 { 2465 return(ctx->quiet_shutdown); 2466 } 2467 2468void SSL_set_quiet_shutdown(SSL *s,int mode) 2469 { 2470 s->quiet_shutdown=mode; 2471 } 2472 2473int SSL_get_quiet_shutdown(const SSL *s) 2474 { 2475 return(s->quiet_shutdown); 2476 } 2477 2478void SSL_set_shutdown(SSL *s,int mode) 2479 { 2480 s->shutdown=mode; 2481 } 2482 2483int SSL_get_shutdown(const SSL *s) 2484 { 2485 return(s->shutdown); 2486 } 2487 2488int SSL_version(const SSL *s) 2489 { 2490 return(s->version); 2491 } 2492 2493SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) 2494 { 2495 return(ssl->ctx); 2496 } 2497 2498SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2499 { 2500 if (ssl->ctx == ctx) 2501 return ssl->ctx; 2502#ifndef OPENSSL_NO_TLSEXT 2503 if (ctx == NULL) 2504 ctx = ssl->initial_ctx; 2505#endif 2506 if (ssl->cert != NULL) 2507 ssl_cert_free(ssl->cert); 2508 ssl->cert = ssl_cert_dup(ctx->cert); 2509 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 2510 if (ssl->ctx != NULL) 2511 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2512 ssl->ctx = ctx; 2513 return(ssl->ctx); 2514 } 2515 2516#ifndef OPENSSL_NO_STDIO 2517int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2518 { 2519 return(X509_STORE_set_default_paths(ctx->cert_store)); 2520 } 2521 2522int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2523 const char *CApath) 2524 { 2525 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 2526 } 2527#endif 2528 2529void SSL_set_info_callback(SSL *ssl, 2530 void (*cb)(const SSL *ssl,int type,int val)) 2531 { 2532 ssl->info_callback=cb; 2533 } 2534 2535/* One compiler (Diab DCC) doesn't like argument names in returned 2536 function pointer. */ 2537void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/) 2538 { 2539 return ssl->info_callback; 2540 } 2541 2542int SSL_state(const SSL *ssl) 2543 { 2544 return(ssl->state); 2545 } 2546 2547void SSL_set_verify_result(SSL *ssl,long arg) 2548 { 2549 ssl->verify_result=arg; 2550 } 2551 2552long SSL_get_verify_result(const SSL *ssl) 2553 { 2554 return(ssl->verify_result); 2555 } 2556 2557int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2558 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2559 { 2560 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2561 new_func, dup_func, free_func); 2562 } 2563 2564int SSL_set_ex_data(SSL *s,int idx,void *arg) 2565 { 2566 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2567 } 2568 2569void *SSL_get_ex_data(const SSL *s,int idx) 2570 { 2571 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2572 } 2573 2574int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2575 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2576 { 2577 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2578 new_func, dup_func, free_func); 2579 } 2580 2581int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 2582 { 2583 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2584 } 2585 2586void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx) 2587 { 2588 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2589 } 2590 2591int ssl_ok(SSL *s) 2592 { 2593 return(1); 2594 } 2595 2596X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2597 { 2598 return(ctx->cert_store); 2599 } 2600 2601void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 2602 { 2603 if (ctx->cert_store != NULL) 2604 X509_STORE_free(ctx->cert_store); 2605 ctx->cert_store=store; 2606 } 2607 2608int SSL_want(const SSL *s) 2609 { 2610 return(s->rwstate); 2611 } 2612 2613/*! 2614 * \brief Set the callback for generating temporary RSA keys. 2615 * \param ctx the SSL context. 2616 * \param cb the callback 2617 */ 2618 2619#ifndef OPENSSL_NO_RSA 2620void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2621 int is_export, 2622 int keylength)) 2623 { 2624 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2625 } 2626 2627void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2628 int is_export, 2629 int keylength)) 2630 { 2631 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2632 } 2633#endif 2634 2635#ifdef DOXYGEN 2636/*! 2637 * \brief The RSA temporary key callback function. 2638 * \param ssl the SSL session. 2639 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2640 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2641 * of the required key in bits. 2642 * \return the temporary RSA key. 2643 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2644 */ 2645 2646RSA *cb(SSL *ssl,int is_export,int keylength) 2647 {} 2648#endif 2649 2650/*! 2651 * \brief Set the callback for generating temporary DH keys. 2652 * \param ctx the SSL context. 2653 * \param dh the callback 2654 */ 2655 2656#ifndef OPENSSL_NO_DH 2657void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2658 int keylength)) 2659 { 2660 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2661 } 2662 2663void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2664 int keylength)) 2665 { 2666 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2667 } 2668#endif 2669 2670#ifndef OPENSSL_NO_ECDH 2671void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2672 int keylength)) 2673 { 2674 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2675 } 2676 2677void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2678 int keylength)) 2679 { 2680 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2681 } 2682#endif 2683 2684 2685void 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)) 2686 { 2687 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2688 } 2689void 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)) 2690 { 2691 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2692 } 2693 2694 2695 2696#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16) 2697#include "../crypto/bio/bss_file.c" 2698#endif 2699 2700IMPLEMENT_STACK_OF(SSL_CIPHER) 2701IMPLEMENT_STACK_OF(SSL_COMP) 2702