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