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