1 /*! \file ssl/ssl_lib.c 2 * \brief Version independent SSL functions. 3 */ 4 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 5 * All rights reserved. 6 * 7 * This package is an SSL implementation written 8 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 (at) 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 (at) cryptsoft.com). This product includes software written by Tim 110 * Hudson (tjh (at) cryptsoft.com). 111 * 112 */ 113 /* ==================================================================== 114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 115 * ECC cipher suite support in OpenSSL originally developed by 116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. 117 */ 118 119 #ifdef REF_CHECK 120 # include <assert.h> 121 #endif 122 #include <stdio.h> 123 #include "ssl_locl.h" 124 #include "kssl_lcl.h" 125 #include <openssl/objects.h> 126 #include <openssl/lhash.h> 127 #include <openssl/x509v3.h> 128 #include <openssl/rand.h> 129 #include <openssl/ocsp.h> 130 #ifndef OPENSSL_NO_DH 131 #include <openssl/dh.h> 132 #endif 133 #ifndef OPENSSL_NO_ENGINE 134 #include <openssl/engine.h> 135 #endif 136 137 const char *SSL_version_str=OPENSSL_VERSION_TEXT; 138 139 SSL3_ENC_METHOD ssl3_undef_enc_method={ 140 /* evil casts, but these functions are only called if there's a library bug */ 141 (int (*)(SSL *,int))ssl_undefined_function, 142 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, 143 ssl_undefined_function, 144 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function, 145 (int (*)(SSL*, int))ssl_undefined_function, 146 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function, 147 0, /* finish_mac_length */ 148 (int (*)(SSL *, EVP_MD_CTX *, unsigned char *))ssl_undefined_function, 149 NULL, /* client_finished_label */ 150 0, /* client_finished_label_len */ 151 NULL, /* server_finished_label */ 152 0, /* server_finished_label_len */ 153 (int (*)(int))ssl_undefined_function 154 }; 155 156 int SSL_clear(SSL *s) 157 { 158 159 if (s->method == NULL) 160 { 161 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED); 162 return(0); 163 } 164 165 if (ssl_clear_bad_session(s)) 166 { 167 SSL_SESSION_free(s->session); 168 s->session=NULL; 169 } 170 171 s->error=0; 172 s->hit=0; 173 s->shutdown=0; 174 175 #if 0 /* Disabled since version 1.10 of this file (early return not 176 * needed because SSL_clear is not called when doing renegotiation) */ 177 /* This is set if we are doing dynamic renegotiation so keep 178 * the old cipher. It is sort of a SSL_clear_lite :-) */ 179 if (s->new_session) return(1); 180 #else 181 if (s->new_session) 182 { 183 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR); 184 return 0; 185 } 186 #endif 187 188 s->type=0; 189 190 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT); 191 192 s->version=s->method->version; 193 s->client_version=s->version; 194 s->rwstate=SSL_NOTHING; 195 s->rstate=SSL_ST_READ_HEADER; 196 #if 0 197 s->read_ahead=s->ctx->read_ahead; 198 #endif 199 200 if (s->init_buf != NULL) 201 { 202 BUF_MEM_free(s->init_buf); 203 s->init_buf=NULL; 204 } 205 206 ssl_clear_cipher_ctx(s); 207 208 s->first_packet=0; 209 210 #if 1 211 /* Check to see if we were changed into a different method, if 212 * so, revert back if we are not doing session-id reuse. */ 213 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method)) 214 { 215 s->method->ssl_free(s); 216 s->method=s->ctx->method; 217 if (!s->method->ssl_new(s)) 218 return(0); 219 } 220 else 221 #endif 222 s->method->ssl_clear(s); 223 return(1); 224 } 225 226 /** Used to change an SSL_CTXs default SSL method type */ 227 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth) 228 { 229 STACK_OF(SSL_CIPHER) *sk; 230 231 ctx->method=meth; 232 233 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list), 234 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST); 235 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) 236 { 237 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 238 return(0); 239 } 240 return(1); 241 } 242 243 SSL *SSL_new(SSL_CTX *ctx) 244 { 245 SSL *s; 246 247 if (ctx == NULL) 248 { 249 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX); 250 return(NULL); 251 } 252 if (ctx->method == NULL) 253 { 254 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 255 return(NULL); 256 } 257 258 s=(SSL *)OPENSSL_malloc(sizeof(SSL)); 259 if (s == NULL) goto err; 260 memset(s,0,sizeof(SSL)); 261 262 #ifndef OPENSSL_NO_KRB5 263 s->kssl_ctx = kssl_ctx_new(); 264 #endif /* OPENSSL_NO_KRB5 */ 265 266 s->options=ctx->options; 267 s->mode=ctx->mode; 268 s->max_cert_list=ctx->max_cert_list; 269 270 if (ctx->cert != NULL) 271 { 272 /* Earlier library versions used to copy the pointer to 273 * the CERT, not its contents; only when setting new 274 * parameters for the per-SSL copy, ssl_cert_new would be 275 * called (and the direct reference to the per-SSL_CTX 276 * settings would be lost, but those still were indirectly 277 * accessed for various purposes, and for that reason they 278 * used to be known as s->ctx->default_cert). 279 * Now we don't look at the SSL_CTX's CERT after having 280 * duplicated it once. */ 281 282 s->cert = ssl_cert_dup(ctx->cert); 283 if (s->cert == NULL) 284 goto err; 285 } 286 else 287 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 288 289 s->read_ahead=ctx->read_ahead; 290 s->msg_callback=ctx->msg_callback; 291 s->msg_callback_arg=ctx->msg_callback_arg; 292 s->verify_mode=ctx->verify_mode; 293 #if 0 294 s->verify_depth=ctx->verify_depth; 295 #endif 296 s->sid_ctx_length=ctx->sid_ctx_length; 297 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 298 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx)); 299 s->verify_callback=ctx->default_verify_callback; 300 s->generate_session_id=ctx->generate_session_id; 301 302 s->param = X509_VERIFY_PARAM_new(); 303 if (!s->param) 304 goto err; 305 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 306 #if 0 307 s->purpose = ctx->purpose; 308 s->trust = ctx->trust; 309 #endif 310 s->quiet_shutdown=ctx->quiet_shutdown; 311 312 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 313 s->ctx=ctx; 314 #ifndef OPENSSL_NO_TLSEXT 315 s->tlsext_debug_cb = 0; 316 s->tlsext_debug_arg = NULL; 317 s->tlsext_ticket_expected = 0; 318 s->tlsext_status_type = -1; 319 s->tlsext_status_expected = 0; 320 s->tlsext_ocsp_ids = NULL; 321 s->tlsext_ocsp_exts = NULL; 322 s->tlsext_ocsp_resp = NULL; 323 s->tlsext_ocsp_resplen = -1; 324 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 325 s->initial_ctx=ctx; 326 #endif 327 s->verify_result=X509_V_OK; 328 329 s->method=ctx->method; 330 331 if (!s->method->ssl_new(s)) 332 goto err; 333 334 s->references=1; 335 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1; 336 337 SSL_clear(s); 338 339 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 340 341 return(s); 342 err: 343 if (s != NULL) 344 { 345 if (s->cert != NULL) 346 ssl_cert_free(s->cert); 347 if (s->ctx != NULL) 348 SSL_CTX_free(s->ctx); /* decrement reference count */ 349 OPENSSL_free(s); 350 } 351 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE); 352 return(NULL); 353 } 354 355 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx, 356 unsigned int sid_ctx_len) 357 { 358 if(sid_ctx_len > sizeof ctx->sid_ctx) 359 { 360 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 361 return 0; 362 } 363 ctx->sid_ctx_length=sid_ctx_len; 364 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len); 365 366 return 1; 367 } 368 369 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx, 370 unsigned int sid_ctx_len) 371 { 372 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 373 { 374 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 375 return 0; 376 } 377 ssl->sid_ctx_length=sid_ctx_len; 378 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len); 379 380 return 1; 381 } 382 383 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 384 { 385 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 386 ctx->generate_session_id = cb; 387 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 388 return 1; 389 } 390 391 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 392 { 393 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 394 ssl->generate_session_id = cb; 395 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 396 return 1; 397 } 398 399 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 400 unsigned int id_len) 401 { 402 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how 403 * we can "construct" a session to give us the desired check - ie. to 404 * find if there's a session in the hash table that would conflict with 405 * any new session built out of this id/id_len and the ssl_version in 406 * use by this SSL. */ 407 SSL_SESSION r, *p; 408 409 if(id_len > sizeof r.session_id) 410 return 0; 411 412 r.ssl_version = ssl->version; 413 r.session_id_length = id_len; 414 memcpy(r.session_id, id, id_len); 415 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a 416 * callback is calling us to check the uniqueness of a shorter ID, it 417 * must be compared as a padded-out ID because that is what it will be 418 * converted to when the callback has finished choosing it. */ 419 if((r.ssl_version == SSL2_VERSION) && 420 (id_len < SSL2_SSL_SESSION_ID_LENGTH)) 421 { 422 memset(r.session_id + id_len, 0, 423 SSL2_SSL_SESSION_ID_LENGTH - id_len); 424 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH; 425 } 426 427 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 428 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r); 429 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 430 return (p != NULL); 431 } 432 433 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 434 { 435 return X509_VERIFY_PARAM_set_purpose(s->param, purpose); 436 } 437 438 int SSL_set_purpose(SSL *s, int purpose) 439 { 440 return X509_VERIFY_PARAM_set_purpose(s->param, purpose); 441 } 442 443 int SSL_CTX_set_trust(SSL_CTX *s, int trust) 444 { 445 return X509_VERIFY_PARAM_set_trust(s->param, trust); 446 } 447 448 int SSL_set_trust(SSL *s, int trust) 449 { 450 return X509_VERIFY_PARAM_set_trust(s->param, trust); 451 } 452 453 void SSL_free(SSL *s) 454 { 455 int i; 456 457 if(s == NULL) 458 return; 459 460 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL); 461 #ifdef REF_PRINT 462 REF_PRINT("SSL",s); 463 #endif 464 if (i > 0) return; 465 #ifdef REF_CHECK 466 if (i < 0) 467 { 468 fprintf(stderr,"SSL_free, bad reference count\n"); 469 abort(); /* ok */ 470 } 471 #endif 472 473 if (s->param) 474 X509_VERIFY_PARAM_free(s->param); 475 476 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 477 478 if (s->bbio != NULL) 479 { 480 /* If the buffering BIO is in place, pop it off */ 481 if (s->bbio == s->wbio) 482 { 483 s->wbio=BIO_pop(s->wbio); 484 } 485 BIO_free(s->bbio); 486 s->bbio=NULL; 487 } 488 if (s->rbio != NULL) 489 BIO_free_all(s->rbio); 490 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 491 BIO_free_all(s->wbio); 492 493 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf); 494 495 /* add extra stuff */ 496 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list); 497 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id); 498 499 /* Make the next call work :-) */ 500 if (s->session != NULL) 501 { 502 ssl_clear_bad_session(s); 503 SSL_SESSION_free(s->session); 504 } 505 506 ssl_clear_cipher_ctx(s); 507 508 if (s->cert != NULL) ssl_cert_free(s->cert); 509 /* Free up if allocated */ 510 511 #ifndef OPENSSL_NO_TLSEXT 512 if (s->tlsext_hostname) 513 OPENSSL_free(s->tlsext_hostname); 514 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx); 515 if (s->tlsext_ocsp_exts) 516 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 517 X509_EXTENSION_free); 518 if (s->tlsext_ocsp_ids) 519 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 520 if (s->tlsext_ocsp_resp) 521 OPENSSL_free(s->tlsext_ocsp_resp); 522 #endif 523 if (s->client_CA != NULL) 524 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free); 525 526 if (s->method != NULL) s->method->ssl_free(s); 527 528 if (s->ctx) SSL_CTX_free(s->ctx); 529 530 #ifndef OPENSSL_NO_KRB5 531 if (s->kssl_ctx != NULL) 532 kssl_ctx_free(s->kssl_ctx); 533 #endif /* OPENSSL_NO_KRB5 */ 534 535 OPENSSL_free(s); 536 } 537 538 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio) 539 { 540 /* If the output buffering BIO is still in place, remove it 541 */ 542 if (s->bbio != NULL) 543 { 544 if (s->wbio == s->bbio) 545 { 546 s->wbio=s->wbio->next_bio; 547 s->bbio->next_bio=NULL; 548 } 549 } 550 if ((s->rbio != NULL) && (s->rbio != rbio)) 551 BIO_free_all(s->rbio); 552 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 553 BIO_free_all(s->wbio); 554 s->rbio=rbio; 555 s->wbio=wbio; 556 } 557 558 BIO *SSL_get_rbio(const SSL *s) 559 { return(s->rbio); } 560 561 BIO *SSL_get_wbio(const SSL *s) 562 { return(s->wbio); } 563 564 int SSL_get_fd(const SSL *s) 565 { 566 return(SSL_get_rfd(s)); 567 } 568 569 int SSL_get_rfd(const SSL *s) 570 { 571 int ret= -1; 572 BIO *b,*r; 573 574 b=SSL_get_rbio(s); 575 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 576 if (r != NULL) 577 BIO_get_fd(r,&ret); 578 return(ret); 579 } 580 581 int SSL_get_wfd(const SSL *s) 582 { 583 int ret= -1; 584 BIO *b,*r; 585 586 b=SSL_get_wbio(s); 587 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 588 if (r != NULL) 589 BIO_get_fd(r,&ret); 590 return(ret); 591 } 592 593 #ifndef OPENSSL_NO_SOCK 594 int SSL_set_fd(SSL *s,int fd) 595 { 596 int ret=0; 597 BIO *bio=NULL; 598 599 bio=BIO_new(BIO_s_socket()); 600 601 if (bio == NULL) 602 { 603 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 604 goto err; 605 } 606 BIO_set_fd(bio,fd,BIO_NOCLOSE); 607 SSL_set_bio(s,bio,bio); 608 ret=1; 609 err: 610 return(ret); 611 } 612 613 int SSL_set_wfd(SSL *s,int fd) 614 { 615 int ret=0; 616 BIO *bio=NULL; 617 618 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 619 || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 620 { 621 bio=BIO_new(BIO_s_socket()); 622 623 if (bio == NULL) 624 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 625 BIO_set_fd(bio,fd,BIO_NOCLOSE); 626 SSL_set_bio(s,SSL_get_rbio(s),bio); 627 } 628 else 629 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 630 ret=1; 631 err: 632 return(ret); 633 } 634 635 int SSL_set_rfd(SSL *s,int fd) 636 { 637 int ret=0; 638 BIO *bio=NULL; 639 640 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 641 || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 642 { 643 bio=BIO_new(BIO_s_socket()); 644 645 if (bio == NULL) 646 { 647 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 648 goto err; 649 } 650 BIO_set_fd(bio,fd,BIO_NOCLOSE); 651 SSL_set_bio(s,bio,SSL_get_wbio(s)); 652 } 653 else 654 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 655 ret=1; 656 err: 657 return(ret); 658 } 659 #endif 660 661 662 /* return length of latest Finished message we sent, copy to 'buf' */ 663 size_t SSL_get_finished(const SSL *s, void *buf, size_t count) 664 { 665 size_t ret = 0; 666 667 if (s->s3 != NULL) 668 { 669 ret = s->s3->tmp.finish_md_len; 670 if (count > ret) 671 count = ret; 672 memcpy(buf, s->s3->tmp.finish_md, count); 673 } 674 return ret; 675 } 676 677 /* return length of latest Finished message we expected, copy to 'buf' */ 678 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 679 { 680 size_t ret = 0; 681 682 if (s->s3 != NULL) 683 { 684 ret = s->s3->tmp.peer_finish_md_len; 685 if (count > ret) 686 count = ret; 687 memcpy(buf, s->s3->tmp.peer_finish_md, count); 688 } 689 return ret; 690 } 691 692 693 int SSL_get_verify_mode(const SSL *s) 694 { 695 return(s->verify_mode); 696 } 697 698 int SSL_get_verify_depth(const SSL *s) 699 { 700 return X509_VERIFY_PARAM_get_depth(s->param); 701 } 702 703 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *) 704 { 705 return(s->verify_callback); 706 } 707 708 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 709 { 710 return(ctx->verify_mode); 711 } 712 713 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 714 { 715 return X509_VERIFY_PARAM_get_depth(ctx->param); 716 } 717 718 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *) 719 { 720 return(ctx->default_verify_callback); 721 } 722 723 void SSL_set_verify(SSL *s,int mode, 724 int (*callback)(int ok,X509_STORE_CTX *ctx)) 725 { 726 s->verify_mode=mode; 727 if (callback != NULL) 728 s->verify_callback=callback; 729 } 730 731 void SSL_set_verify_depth(SSL *s,int depth) 732 { 733 X509_VERIFY_PARAM_set_depth(s->param, depth); 734 } 735 736 void SSL_set_read_ahead(SSL *s,int yes) 737 { 738 s->read_ahead=yes; 739 } 740 741 int SSL_get_read_ahead(const SSL *s) 742 { 743 return(s->read_ahead); 744 } 745 746 int SSL_pending(const SSL *s) 747 { 748 /* SSL_pending cannot work properly if read-ahead is enabled 749 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 750 * and it is impossible to fix since SSL_pending cannot report 751 * errors that may be observed while scanning the new data. 752 * (Note that SSL_pending() is often used as a boolean value, 753 * so we'd better not return -1.) 754 */ 755 return(s->method->ssl_pending(s)); 756 } 757 758 X509 *SSL_get_peer_certificate(const SSL *s) 759 { 760 X509 *r; 761 762 if ((s == NULL) || (s->session == NULL)) 763 r=NULL; 764 else 765 r=s->session->peer; 766 767 if (r == NULL) return(r); 768 769 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 770 771 return(r); 772 } 773 774 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) 775 { 776 STACK_OF(X509) *r; 777 778 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 779 r=NULL; 780 else 781 r=s->session->sess_cert->cert_chain; 782 783 /* If we are a client, cert_chain includes the peer's own 784 * certificate; if we are a server, it does not. */ 785 786 return(r); 787 } 788 789 /* Now in theory, since the calling process own 't' it should be safe to 790 * modify. We need to be able to read f without being hassled */ 791 void SSL_copy_session_id(SSL *t,const SSL *f) 792 { 793 CERT *tmp; 794 795 /* Do we need to to SSL locking? */ 796 SSL_set_session(t,SSL_get_session(f)); 797 798 /* what if we are setup as SSLv2 but want to talk SSLv3 or 799 * vice-versa */ 800 if (t->method != f->method) 801 { 802 t->method->ssl_free(t); /* cleanup current */ 803 t->method=f->method; /* change method */ 804 t->method->ssl_new(t); /* setup new */ 805 } 806 807 tmp=t->cert; 808 if (f->cert != NULL) 809 { 810 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 811 t->cert=f->cert; 812 } 813 else 814 t->cert=NULL; 815 if (tmp != NULL) ssl_cert_free(tmp); 816 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length); 817 } 818 819 /* Fix this so it checks all the valid key/cert options */ 820 int SSL_CTX_check_private_key(const SSL_CTX *ctx) 821 { 822 if ( (ctx == NULL) || 823 (ctx->cert == NULL) || 824 (ctx->cert->key->x509 == NULL)) 825 { 826 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 827 return(0); 828 } 829 if (ctx->cert->key->privatekey == NULL) 830 { 831 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 832 return(0); 833 } 834 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 835 } 836 837 /* Fix this function so that it takes an optional type parameter */ 838 int SSL_check_private_key(const SSL *ssl) 839 { 840 if (ssl == NULL) 841 { 842 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 843 return(0); 844 } 845 if (ssl->cert == NULL) 846 { 847 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 848 return 0; 849 } 850 if (ssl->cert->key->x509 == NULL) 851 { 852 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 853 return(0); 854 } 855 if (ssl->cert->key->privatekey == NULL) 856 { 857 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 858 return(0); 859 } 860 return(X509_check_private_key(ssl->cert->key->x509, 861 ssl->cert->key->privatekey)); 862 } 863 864 int SSL_accept(SSL *s) 865 { 866 if (s->handshake_func == 0) 867 /* Not properly initialized yet */ 868 SSL_set_accept_state(s); 869 870 return(s->method->ssl_accept(s)); 871 } 872 873 int SSL_connect(SSL *s) 874 { 875 if (s->handshake_func == 0) 876 /* Not properly initialized yet */ 877 SSL_set_connect_state(s); 878 879 return(s->method->ssl_connect(s)); 880 } 881 882 long SSL_get_default_timeout(const SSL *s) 883 { 884 return(s->method->get_timeout()); 885 } 886 887 int SSL_read(SSL *s,void *buf,int num) 888 { 889 if (s->handshake_func == 0) 890 { 891 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 892 return -1; 893 } 894 895 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 896 { 897 s->rwstate=SSL_NOTHING; 898 return(0); 899 } 900 return(s->method->ssl_read(s,buf,num)); 901 } 902 903 int SSL_peek(SSL *s,void *buf,int num) 904 { 905 if (s->handshake_func == 0) 906 { 907 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); 908 return -1; 909 } 910 911 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 912 { 913 return(0); 914 } 915 return(s->method->ssl_peek(s,buf,num)); 916 } 917 918 int SSL_write(SSL *s,const void *buf,int num) 919 { 920 if (s->handshake_func == 0) 921 { 922 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 923 return -1; 924 } 925 926 if (s->shutdown & SSL_SENT_SHUTDOWN) 927 { 928 s->rwstate=SSL_NOTHING; 929 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 930 return(-1); 931 } 932 return(s->method->ssl_write(s,buf,num)); 933 } 934 935 int SSL_shutdown(SSL *s) 936 { 937 /* Note that this function behaves differently from what one might 938 * expect. Return values are 0 for no success (yet), 939 * 1 for success; but calling it once is usually not enough, 940 * even if blocking I/O is used (see ssl3_shutdown). 941 */ 942 943 if (s->handshake_func == 0) 944 { 945 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 946 return -1; 947 } 948 949 if ((s != NULL) && !SSL_in_init(s)) 950 return(s->method->ssl_shutdown(s)); 951 else 952 return(1); 953 } 954 955 int SSL_renegotiate(SSL *s) 956 { 957 if (s->new_session == 0) 958 { 959 s->new_session=1; 960 } 961 return(s->method->ssl_renegotiate(s)); 962 } 963 964 int SSL_renegotiate_pending(SSL *s) 965 { 966 /* becomes true when negotiation is requested; 967 * false again once a handshake has finished */ 968 return (s->new_session != 0); 969 } 970 971 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg) 972 { 973 long l; 974 975 switch (cmd) 976 { 977 case SSL_CTRL_GET_READ_AHEAD: 978 return(s->read_ahead); 979 case SSL_CTRL_SET_READ_AHEAD: 980 l=s->read_ahead; 981 s->read_ahead=larg; 982 return(l); 983 984 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 985 s->msg_callback_arg = parg; 986 return 1; 987 988 case SSL_CTRL_OPTIONS: 989 return(s->options|=larg); 990 case SSL_CTRL_CLEAR_OPTIONS: 991 return(s->options&=~larg); 992 case SSL_CTRL_MODE: 993 return(s->mode|=larg); 994 case SSL_CTRL_CLEAR_MODE: 995 return(s->mode &=~larg); 996 case SSL_CTRL_GET_MAX_CERT_LIST: 997 return(s->max_cert_list); 998 case SSL_CTRL_SET_MAX_CERT_LIST: 999 l=s->max_cert_list; 1000 s->max_cert_list=larg; 1001 return(l); 1002 case SSL_CTRL_SET_MTU: 1003 if (SSL_version(s) == DTLS1_VERSION || 1004 SSL_version(s) == DTLS1_BAD_VER) 1005 { 1006 s->d1->mtu = larg; 1007 return larg; 1008 } 1009 return 0; 1010 case SSL_CTRL_GET_RI_SUPPORT: 1011 if (s->s3) 1012 return s->s3->send_connection_binding; 1013 else return 0; 1014 default: 1015 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 1016 } 1017 } 1018 1019 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1020 { 1021 switch(cmd) 1022 { 1023 case SSL_CTRL_SET_MSG_CALLBACK: 1024 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1025 return 1; 1026 1027 default: 1028 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 1029 } 1030 } 1031 1032 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx) 1033 { 1034 return ctx->sessions; 1035 } 1036 1037 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg) 1038 { 1039 long l; 1040 1041 switch (cmd) 1042 { 1043 case SSL_CTRL_GET_READ_AHEAD: 1044 return(ctx->read_ahead); 1045 case SSL_CTRL_SET_READ_AHEAD: 1046 l=ctx->read_ahead; 1047 ctx->read_ahead=larg; 1048 return(l); 1049 1050 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1051 ctx->msg_callback_arg = parg; 1052 return 1; 1053 1054 case SSL_CTRL_GET_MAX_CERT_LIST: 1055 return(ctx->max_cert_list); 1056 case SSL_CTRL_SET_MAX_CERT_LIST: 1057 l=ctx->max_cert_list; 1058 ctx->max_cert_list=larg; 1059 return(l); 1060 1061 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1062 l=ctx->session_cache_size; 1063 ctx->session_cache_size=larg; 1064 return(l); 1065 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1066 return(ctx->session_cache_size); 1067 case SSL_CTRL_SET_SESS_CACHE_MODE: 1068 l=ctx->session_cache_mode; 1069 ctx->session_cache_mode=larg; 1070 return(l); 1071 case SSL_CTRL_GET_SESS_CACHE_MODE: 1072 return(ctx->session_cache_mode); 1073 1074 case SSL_CTRL_SESS_NUMBER: 1075 return(ctx->sessions->num_items); 1076 case SSL_CTRL_SESS_CONNECT: 1077 return(ctx->stats.sess_connect); 1078 case SSL_CTRL_SESS_CONNECT_GOOD: 1079 return(ctx->stats.sess_connect_good); 1080 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1081 return(ctx->stats.sess_connect_renegotiate); 1082 case SSL_CTRL_SESS_ACCEPT: 1083 return(ctx->stats.sess_accept); 1084 case SSL_CTRL_SESS_ACCEPT_GOOD: 1085 return(ctx->stats.sess_accept_good); 1086 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1087 return(ctx->stats.sess_accept_renegotiate); 1088 case SSL_CTRL_SESS_HIT: 1089 return(ctx->stats.sess_hit); 1090 case SSL_CTRL_SESS_CB_HIT: 1091 return(ctx->stats.sess_cb_hit); 1092 case SSL_CTRL_SESS_MISSES: 1093 return(ctx->stats.sess_miss); 1094 case SSL_CTRL_SESS_TIMEOUTS: 1095 return(ctx->stats.sess_timeout); 1096 case SSL_CTRL_SESS_CACHE_FULL: 1097 return(ctx->stats.sess_cache_full); 1098 case SSL_CTRL_OPTIONS: 1099 return(ctx->options|=larg); 1100 case SSL_CTRL_CLEAR_OPTIONS: 1101 return(ctx->options&=~larg); 1102 case SSL_CTRL_MODE: 1103 return(ctx->mode|=larg); 1104 case SSL_CTRL_CLEAR_MODE: 1105 return(ctx->mode&=~larg); 1106 default: 1107 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 1108 } 1109 } 1110 1111 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1112 { 1113 switch(cmd) 1114 { 1115 case SSL_CTRL_SET_MSG_CALLBACK: 1116 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1117 return 1; 1118 1119 default: 1120 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 1121 } 1122 } 1123 1124 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1125 { 1126 long l; 1127 1128 l=a->id-b->id; 1129 if (l == 0L) 1130 return(0); 1131 else 1132 return((l > 0)?1:-1); 1133 } 1134 1135 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1136 const SSL_CIPHER * const *bp) 1137 { 1138 long l; 1139 1140 l=(*ap)->id-(*bp)->id; 1141 if (l == 0L) 1142 return(0); 1143 else 1144 return((l > 0)?1:-1); 1145 } 1146 1147 /** return a STACK of the ciphers available for the SSL and in order of 1148 * preference */ 1149 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) 1150 { 1151 if (s != NULL) 1152 { 1153 if (s->cipher_list != NULL) 1154 { 1155 return(s->cipher_list); 1156 } 1157 else if ((s->ctx != NULL) && 1158 (s->ctx->cipher_list != NULL)) 1159 { 1160 return(s->ctx->cipher_list); 1161 } 1162 } 1163 return(NULL); 1164 } 1165 1166 /** return a STACK of the ciphers available for the SSL and in order of 1167 * algorithm id */ 1168 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 1169 { 1170 if (s != NULL) 1171 { 1172 if (s->cipher_list_by_id != NULL) 1173 { 1174 return(s->cipher_list_by_id); 1175 } 1176 else if ((s->ctx != NULL) && 1177 (s->ctx->cipher_list_by_id != NULL)) 1178 { 1179 return(s->ctx->cipher_list_by_id); 1180 } 1181 } 1182 return(NULL); 1183 } 1184 1185 /** The old interface to get the same thing as SSL_get_ciphers() */ 1186 const char *SSL_get_cipher_list(const SSL *s,int n) 1187 { 1188 SSL_CIPHER *c; 1189 STACK_OF(SSL_CIPHER) *sk; 1190 1191 if (s == NULL) return(NULL); 1192 sk=SSL_get_ciphers(s); 1193 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1194 return(NULL); 1195 c=sk_SSL_CIPHER_value(sk,n); 1196 if (c == NULL) return(NULL); 1197 return(c->name); 1198 } 1199 1200 /** specify the ciphers to be used by default by the SSL_CTX */ 1201 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1202 { 1203 STACK_OF(SSL_CIPHER) *sk; 1204 1205 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 1206 &ctx->cipher_list_by_id,str); 1207 /* ssl_create_cipher_list may return an empty stack if it 1208 * was unable to find a cipher matching the given rule string 1209 * (for example if the rule string specifies a cipher which 1210 * has been disabled). This is not an error as far as 1211 * ssl_create_cipher_list is concerned, and hence 1212 * ctx->cipher_list and ctx->cipher_list_by_id has been 1213 * updated. */ 1214 if (sk == NULL) 1215 return 0; 1216 else if (sk_SSL_CIPHER_num(sk) == 0) 1217 { 1218 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1219 return 0; 1220 } 1221 return 1; 1222 } 1223 1224 /** specify the ciphers to be used by the SSL */ 1225 int SSL_set_cipher_list(SSL *s,const char *str) 1226 { 1227 STACK_OF(SSL_CIPHER) *sk; 1228 1229 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 1230 &s->cipher_list_by_id,str); 1231 /* see comment in SSL_CTX_set_cipher_list */ 1232 if (sk == NULL) 1233 return 0; 1234 else if (sk_SSL_CIPHER_num(sk) == 0) 1235 { 1236 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1237 return 0; 1238 } 1239 return 1; 1240 } 1241 1242 /* works well for SSLv2, not so good for SSLv3 */ 1243 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len) 1244 { 1245 char *p; 1246 STACK_OF(SSL_CIPHER) *sk; 1247 SSL_CIPHER *c; 1248 int i; 1249 1250 if ((s->session == NULL) || (s->session->ciphers == NULL) || 1251 (len < 2)) 1252 return(NULL); 1253 1254 p=buf; 1255 sk=s->session->ciphers; 1256 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1257 { 1258 int n; 1259 1260 c=sk_SSL_CIPHER_value(sk,i); 1261 n=strlen(c->name); 1262 if (n+1 > len) 1263 { 1264 if (p != buf) 1265 --p; 1266 *p='\0'; 1267 return buf; 1268 } 1269 strcpy(p,c->name); 1270 p+=n; 1271 *(p++)=':'; 1272 len-=n+1; 1273 } 1274 p[-1]='\0'; 1275 return(buf); 1276 } 1277 1278 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p, 1279 int (*put_cb)(const SSL_CIPHER *, unsigned char *)) 1280 { 1281 int i,j=0; 1282 SSL_CIPHER *c; 1283 unsigned char *q; 1284 #ifndef OPENSSL_NO_KRB5 1285 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx); 1286 #endif /* OPENSSL_NO_KRB5 */ 1287 1288 if (sk == NULL) return(0); 1289 q=p; 1290 1291 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1292 { 1293 c=sk_SSL_CIPHER_value(sk,i); 1294 #ifndef OPENSSL_NO_KRB5 1295 if ((c->algorithms & SSL_KRB5) && nokrb5) 1296 continue; 1297 #endif /* OPENSSL_NO_KRB5 */ 1298 1299 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p); 1300 p+=j; 1301 } 1302 /* If p == q, no ciphers and caller indicates an error. Otherwise 1303 * add SCSV if not renegotiating. 1304 */ 1305 if (p != q && !s->new_session) 1306 { 1307 static SSL_CIPHER scsv = 1308 { 1309 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 1310 }; 1311 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p); 1312 p+=j; 1313 #ifdef OPENSSL_RI_DEBUG 1314 fprintf(stderr, "SCSV sent by client\n"); 1315 #endif 1316 } 1317 1318 return(p-q); 1319 } 1320 1321 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1322 STACK_OF(SSL_CIPHER) **skp) 1323 { 1324 SSL_CIPHER *c; 1325 STACK_OF(SSL_CIPHER) *sk; 1326 int i,n; 1327 if (s->s3) 1328 s->s3->send_connection_binding = 0; 1329 1330 n=ssl_put_cipher_by_char(s,NULL,NULL); 1331 if ((num%n) != 0) 1332 { 1333 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1334 return(NULL); 1335 } 1336 if ((skp == NULL) || (*skp == NULL)) 1337 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1338 else 1339 { 1340 sk= *skp; 1341 sk_SSL_CIPHER_zero(sk); 1342 } 1343 1344 for (i=0; i<num; i+=n) 1345 { 1346 /* Check for SCSV */ 1347 if (s->s3 && (n != 3 || !p[0]) && 1348 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) && 1349 (p[n-1] == (SSL3_CK_SCSV & 0xff))) 1350 { 1351 /* SCSV fatal if renegotiating */ 1352 if (s->new_session) 1353 { 1354 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING); 1355 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); 1356 goto err; 1357 } 1358 s->s3->send_connection_binding = 1; 1359 p += n; 1360 #ifdef OPENSSL_RI_DEBUG 1361 fprintf(stderr, "SCSV received by server\n"); 1362 #endif 1363 continue; 1364 } 1365 1366 c=ssl_get_cipher_by_char(s,p); 1367 p+=n; 1368 if (c != NULL) 1369 { 1370 if (!sk_SSL_CIPHER_push(sk,c)) 1371 { 1372 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1373 goto err; 1374 } 1375 } 1376 } 1377 1378 if (skp != NULL) 1379 *skp=sk; 1380 return(sk); 1381 err: 1382 if ((skp == NULL) || (*skp == NULL)) 1383 sk_SSL_CIPHER_free(sk); 1384 return(NULL); 1385 } 1386 1387 #ifndef OPENSSL_NO_TLSEXT 1388 /** return a servername extension value if provided in Client Hello, or NULL. 1389 * So far, only host_name types are defined (RFC 3546). 1390 */ 1391 1392 const char *SSL_get_servername(const SSL *s, const int type) 1393 { 1394 if (type != TLSEXT_NAMETYPE_host_name) 1395 return NULL; 1396 1397 return s->session && !s->tlsext_hostname ? 1398 s->session->tlsext_hostname : 1399 s->tlsext_hostname; 1400 } 1401 1402 int SSL_get_servername_type(const SSL *s) 1403 { 1404 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname)) 1405 return TLSEXT_NAMETYPE_host_name; 1406 return -1; 1407 } 1408 #endif 1409 1410 unsigned long SSL_SESSION_hash(const SSL_SESSION *a) 1411 { 1412 unsigned long l; 1413 1414 l=(unsigned long) 1415 ((unsigned int) a->session_id[0] )| 1416 ((unsigned int) a->session_id[1]<< 8L)| 1417 ((unsigned long)a->session_id[2]<<16L)| 1418 ((unsigned long)a->session_id[3]<<24L); 1419 return(l); 1420 } 1421 1422 /* NB: If this function (or indeed the hash function which uses a sort of 1423 * coarser function than this one) is changed, ensure 1424 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1425 * able to construct an SSL_SESSION that will collide with any existing session 1426 * with a matching session ID. */ 1427 int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b) 1428 { 1429 if (a->ssl_version != b->ssl_version) 1430 return(1); 1431 if (a->session_id_length != b->session_id_length) 1432 return(1); 1433 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1434 } 1435 1436 /* These wrapper functions should remain rather than redeclaring 1437 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1438 * variable. The reason is that the functions aren't static, they're exposed via 1439 * ssl.h. */ 1440 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *) 1441 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *) 1442 1443 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth) 1444 { 1445 SSL_CTX *ret=NULL; 1446 1447 if (meth == NULL) 1448 { 1449 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1450 return(NULL); 1451 } 1452 1453 #ifdef OPENSSL_FIPS 1454 if (FIPS_mode() && (meth->version < TLS1_VERSION)) 1455 { 1456 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE); 1457 return NULL; 1458 } 1459 #endif 1460 1461 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1462 { 1463 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1464 goto err; 1465 } 1466 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); 1467 if (ret == NULL) 1468 goto err; 1469 1470 memset(ret,0,sizeof(SSL_CTX)); 1471 1472 ret->method=meth; 1473 1474 ret->cert_store=NULL; 1475 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1476 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1477 ret->session_cache_head=NULL; 1478 ret->session_cache_tail=NULL; 1479 1480 /* We take the system default */ 1481 ret->session_timeout=meth->get_timeout(); 1482 1483 ret->new_session_cb=0; 1484 ret->remove_session_cb=0; 1485 ret->get_session_cb=0; 1486 ret->generate_session_id=0; 1487 1488 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1489 1490 ret->references=1; 1491 ret->quiet_shutdown=0; 1492 1493 /* ret->cipher=NULL;*/ 1494 /* ret->s2->challenge=NULL; 1495 ret->master_key=NULL; 1496 ret->key_arg=NULL; 1497 ret->s2->conn_id=NULL; */ 1498 1499 ret->info_callback=NULL; 1500 1501 ret->app_verify_callback=0; 1502 ret->app_verify_arg=NULL; 1503 1504 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT; 1505 ret->read_ahead=0; 1506 ret->msg_callback=0; 1507 ret->msg_callback_arg=NULL; 1508 ret->verify_mode=SSL_VERIFY_NONE; 1509 #if 0 1510 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1511 #endif 1512 ret->sid_ctx_length=0; 1513 ret->default_verify_callback=NULL; 1514 if ((ret->cert=ssl_cert_new()) == NULL) 1515 goto err; 1516 1517 ret->default_passwd_callback=0; 1518 ret->default_passwd_callback_userdata=NULL; 1519 ret->client_cert_cb=0; 1520 ret->app_gen_cookie_cb=0; 1521 ret->app_verify_cookie_cb=0; 1522 1523 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash), 1524 LHASH_COMP_FN(SSL_SESSION_cmp)); 1525 if (ret->sessions == NULL) goto err; 1526 ret->cert_store=X509_STORE_new(); 1527 if (ret->cert_store == NULL) goto err; 1528 1529 ssl_create_cipher_list(ret->method, 1530 &ret->cipher_list,&ret->cipher_list_by_id, 1531 SSL_DEFAULT_CIPHER_LIST); 1532 if (ret->cipher_list == NULL 1533 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1534 { 1535 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1536 goto err2; 1537 } 1538 1539 ret->param = X509_VERIFY_PARAM_new(); 1540 if (!ret->param) 1541 goto err; 1542 1543 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1544 { 1545 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1546 goto err2; 1547 } 1548 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1549 { 1550 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1551 goto err2; 1552 } 1553 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1554 { 1555 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1556 goto err2; 1557 } 1558 1559 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1560 goto err; 1561 1562 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 1563 1564 ret->extra_certs=NULL; 1565 ret->comp_methods=SSL_COMP_get_compression_methods(); 1566 1567 #ifndef OPENSSL_NO_TLSEXT 1568 ret->tlsext_servername_callback = 0; 1569 ret->tlsext_servername_arg = NULL; 1570 /* Setup RFC4507 ticket keys */ 1571 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0) 1572 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) 1573 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) 1574 ret->options |= SSL_OP_NO_TICKET; 1575 1576 ret->tlsext_status_cb = 0; 1577 ret->tlsext_status_arg = NULL; 1578 1579 #endif 1580 1581 #ifndef OPENSSL_NO_ENGINE 1582 ret->client_cert_engine = NULL; 1583 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1584 #define eng_strx(x) #x 1585 #define eng_str(x) eng_strx(x) 1586 /* Use specific client engine automatically... ignore errors */ 1587 { 1588 ENGINE *eng; 1589 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1590 if (!eng) 1591 { 1592 ERR_clear_error(); 1593 ENGINE_load_builtin_engines(); 1594 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1595 } 1596 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1597 ERR_clear_error(); 1598 } 1599 #endif 1600 #endif 1601 /* Default is to connect to non-RI servers. When RI is more widely 1602 * deployed might change this. 1603 */ 1604 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; 1605 1606 return(ret); 1607 err: 1608 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1609 err2: 1610 if (ret != NULL) SSL_CTX_free(ret); 1611 return(NULL); 1612 } 1613 1614 #if 0 1615 static void SSL_COMP_free(SSL_COMP *comp) 1616 { OPENSSL_free(comp); } 1617 #endif 1618 1619 void SSL_CTX_free(SSL_CTX *a) 1620 { 1621 int i; 1622 1623 if (a == NULL) return; 1624 1625 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1626 #ifdef REF_PRINT 1627 REF_PRINT("SSL_CTX",a); 1628 #endif 1629 if (i > 0) return; 1630 #ifdef REF_CHECK 1631 if (i < 0) 1632 { 1633 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1634 abort(); /* ok */ 1635 } 1636 #endif 1637 1638 if (a->param) 1639 X509_VERIFY_PARAM_free(a->param); 1640 1641 /* 1642 * Free internal session cache. However: the remove_cb() may reference 1643 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1644 * after the sessions were flushed. 1645 * As the ex_data handling routines might also touch the session cache, 1646 * the most secure solution seems to be: empty (flush) the cache, then 1647 * free ex_data, then finally free the cache. 1648 * (See ticket [openssl.org #212].) 1649 */ 1650 if (a->sessions != NULL) 1651 SSL_CTX_flush_sessions(a,0); 1652 1653 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); 1654 1655 if (a->sessions != NULL) 1656 lh_free(a->sessions); 1657 1658 if (a->cert_store != NULL) 1659 X509_STORE_free(a->cert_store); 1660 if (a->cipher_list != NULL) 1661 sk_SSL_CIPHER_free(a->cipher_list); 1662 if (a->cipher_list_by_id != NULL) 1663 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1664 if (a->cert != NULL) 1665 ssl_cert_free(a->cert); 1666 if (a->client_CA != NULL) 1667 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1668 if (a->extra_certs != NULL) 1669 sk_X509_pop_free(a->extra_certs,X509_free); 1670 #if 0 /* This should never be done, since it removes a global database */ 1671 if (a->comp_methods != NULL) 1672 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1673 #else 1674 a->comp_methods = NULL; 1675 #endif 1676 #ifndef OPENSSL_NO_ENGINE 1677 if (a->client_cert_engine) 1678 ENGINE_finish(a->client_cert_engine); 1679 #endif 1680 OPENSSL_free(a); 1681 } 1682 1683 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1684 { 1685 ctx->default_passwd_callback=cb; 1686 } 1687 1688 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1689 { 1690 ctx->default_passwd_callback_userdata=u; 1691 } 1692 1693 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg) 1694 { 1695 ctx->app_verify_callback=cb; 1696 ctx->app_verify_arg=arg; 1697 } 1698 1699 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1700 { 1701 ctx->verify_mode=mode; 1702 ctx->default_verify_callback=cb; 1703 } 1704 1705 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1706 { 1707 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1708 } 1709 1710 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) 1711 { 1712 CERT_PKEY *cpk; 1713 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1714 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1715 int rsa_tmp_export,dh_tmp_export,kl; 1716 unsigned long mask,emask; 1717 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size; 1718 #ifndef OPENSSL_NO_ECDH 1719 int have_ecdh_tmp; 1720 #endif 1721 X509 *x = NULL; 1722 EVP_PKEY *ecc_pkey = NULL; 1723 int signature_nid = 0; 1724 1725 if (c == NULL) return; 1726 1727 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1728 1729 #ifndef OPENSSL_NO_RSA 1730 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1731 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1732 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1733 #else 1734 rsa_tmp=rsa_tmp_export=0; 1735 #endif 1736 #ifndef OPENSSL_NO_DH 1737 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1738 dh_tmp_export=(c->dh_tmp_cb != NULL || 1739 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1740 #else 1741 dh_tmp=dh_tmp_export=0; 1742 #endif 1743 1744 #ifndef OPENSSL_NO_ECDH 1745 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL); 1746 #endif 1747 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1748 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1749 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1750 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1751 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1752 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1753 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1754 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1755 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1756 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1757 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1758 /* FIX THIS EAY EAY EAY */ 1759 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1760 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1761 cpk= &(c->pkeys[SSL_PKEY_ECC]); 1762 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL); 1763 mask=0; 1764 emask=0; 1765 1766 #ifdef CIPHER_DEBUG 1767 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1768 rsa_tmp,rsa_tmp_export,dh_tmp, 1769 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1770 #endif 1771 1772 if (rsa_enc || (rsa_tmp && rsa_sign)) 1773 mask|=SSL_kRSA; 1774 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1775 emask|=SSL_kRSA; 1776 1777 #if 0 1778 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1779 if ( (dh_tmp || dh_rsa || dh_dsa) && 1780 (rsa_enc || rsa_sign || dsa_sign)) 1781 mask|=SSL_kEDH; 1782 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1783 (rsa_enc || rsa_sign || dsa_sign)) 1784 emask|=SSL_kEDH; 1785 #endif 1786 1787 if (dh_tmp_export) 1788 emask|=SSL_kEDH; 1789 1790 if (dh_tmp) 1791 mask|=SSL_kEDH; 1792 1793 if (dh_rsa) mask|=SSL_kDHr; 1794 if (dh_rsa_export) emask|=SSL_kDHr; 1795 1796 if (dh_dsa) mask|=SSL_kDHd; 1797 if (dh_dsa_export) emask|=SSL_kDHd; 1798 1799 if (rsa_enc || rsa_sign) 1800 { 1801 mask|=SSL_aRSA; 1802 emask|=SSL_aRSA; 1803 } 1804 1805 if (dsa_sign) 1806 { 1807 mask|=SSL_aDSS; 1808 emask|=SSL_aDSS; 1809 } 1810 1811 mask|=SSL_aNULL; 1812 emask|=SSL_aNULL; 1813 1814 #ifndef OPENSSL_NO_KRB5 1815 mask|=SSL_kKRB5|SSL_aKRB5; 1816 emask|=SSL_kKRB5|SSL_aKRB5; 1817 #endif 1818 1819 /* An ECC certificate may be usable for ECDH and/or 1820 * ECDSA cipher suites depending on the key usage extension. 1821 */ 1822 if (have_ecc_cert) 1823 { 1824 /* This call populates extension flags (ex_flags) */ 1825 x = (c->pkeys[SSL_PKEY_ECC]).x509; 1826 X509_check_purpose(x, -1, 0); 1827 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1828 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; 1829 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1830 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; 1831 ecc_pkey = X509_get_pubkey(x); 1832 ecc_pkey_size = (ecc_pkey != NULL) ? 1833 EVP_PKEY_bits(ecc_pkey) : 0; 1834 EVP_PKEY_free(ecc_pkey); 1835 if ((x->sig_alg) && (x->sig_alg->algorithm)) 1836 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 1837 #ifndef OPENSSL_NO_ECDH 1838 if (ecdh_ok) 1839 { 1840 if ((signature_nid == NID_md5WithRSAEncryption) || 1841 (signature_nid == NID_md4WithRSAEncryption) || 1842 (signature_nid == NID_md2WithRSAEncryption)) 1843 { 1844 mask|=SSL_kECDH|SSL_aRSA; 1845 if (ecc_pkey_size <= 163) 1846 emask|=SSL_kECDH|SSL_aRSA; 1847 } 1848 if (signature_nid == NID_ecdsa_with_SHA1) 1849 { 1850 mask|=SSL_kECDH|SSL_aECDSA; 1851 if (ecc_pkey_size <= 163) 1852 emask|=SSL_kECDH|SSL_aECDSA; 1853 } 1854 } 1855 #endif 1856 #ifndef OPENSSL_NO_ECDSA 1857 if (ecdsa_ok) 1858 { 1859 mask|=SSL_aECDSA; 1860 emask|=SSL_aECDSA; 1861 } 1862 #endif 1863 } 1864 1865 #ifndef OPENSSL_NO_ECDH 1866 if (have_ecdh_tmp) 1867 { 1868 mask|=SSL_kECDHE; 1869 emask|=SSL_kECDHE; 1870 } 1871 #endif 1872 c->mask=mask; 1873 c->export_mask=emask; 1874 c->valid=1; 1875 } 1876 1877 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */ 1878 #define ku_reject(x, usage) \ 1879 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) 1880 1881 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs) 1882 { 1883 unsigned long alg = cs->algorithms; 1884 EVP_PKEY *pkey = NULL; 1885 int keysize = 0; 1886 int signature_nid = 0; 1887 1888 if (SSL_C_IS_EXPORT(cs)) 1889 { 1890 /* ECDH key length in export ciphers must be <= 163 bits */ 1891 pkey = X509_get_pubkey(x); 1892 if (pkey == NULL) return 0; 1893 keysize = EVP_PKEY_bits(pkey); 1894 EVP_PKEY_free(pkey); 1895 if (keysize > 163) return 0; 1896 } 1897 1898 /* This call populates the ex_flags field correctly */ 1899 X509_check_purpose(x, -1, 0); 1900 if ((x->sig_alg) && (x->sig_alg->algorithm)) 1901 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 1902 if (alg & SSL_kECDH) 1903 { 1904 /* key usage, if present, must allow key agreement */ 1905 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) 1906 { 1907 return 0; 1908 } 1909 if (alg & SSL_aECDSA) 1910 { 1911 /* signature alg must be ECDSA */ 1912 if (signature_nid != NID_ecdsa_with_SHA1) 1913 { 1914 return 0; 1915 } 1916 } 1917 if (alg & SSL_aRSA) 1918 { 1919 /* signature alg must be RSA */ 1920 if ((signature_nid != NID_md5WithRSAEncryption) && 1921 (signature_nid != NID_md4WithRSAEncryption) && 1922 (signature_nid != NID_md2WithRSAEncryption)) 1923 { 1924 return 0; 1925 } 1926 } 1927 } 1928 else if (alg & SSL_aECDSA) 1929 { 1930 /* key usage, if present, must allow signing */ 1931 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) 1932 { 1933 return 0; 1934 } 1935 } 1936 1937 return 1; /* all checks are ok */ 1938 } 1939 1940 /* THIS NEEDS CLEANING UP */ 1941 X509 *ssl_get_server_send_cert(SSL *s) 1942 { 1943 unsigned long alg,mask,kalg; 1944 CERT *c; 1945 int i,is_export; 1946 1947 c=s->cert; 1948 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 1949 alg=s->s3->tmp.new_cipher->algorithms; 1950 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 1951 mask=is_export?c->export_mask:c->mask; 1952 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1953 1954 if (kalg & SSL_kECDH) 1955 { 1956 /* we don't need to look at SSL_kECDHE 1957 * since no certificate is needed for 1958 * anon ECDH and for authenticated 1959 * ECDHE, the check for the auth 1960 * algorithm will set i correctly 1961 * NOTE: For ECDH-RSA, we need an ECC 1962 * not an RSA cert but for ECDHE-RSA 1963 * we need an RSA cert. Placing the 1964 * checks for SSL_kECDH before RSA 1965 * checks ensures the correct cert is chosen. 1966 */ 1967 i=SSL_PKEY_ECC; 1968 } 1969 else if (kalg & SSL_aECDSA) 1970 { 1971 i=SSL_PKEY_ECC; 1972 } 1973 else if (kalg & SSL_kDHr) 1974 i=SSL_PKEY_DH_RSA; 1975 else if (kalg & SSL_kDHd) 1976 i=SSL_PKEY_DH_DSA; 1977 else if (kalg & SSL_aDSS) 1978 i=SSL_PKEY_DSA_SIGN; 1979 else if (kalg & SSL_aRSA) 1980 { 1981 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1982 i=SSL_PKEY_RSA_SIGN; 1983 else 1984 i=SSL_PKEY_RSA_ENC; 1985 } 1986 else if (kalg & SSL_aKRB5) 1987 { 1988 /* VRS something else here? */ 1989 return(NULL); 1990 } 1991 else /* if (kalg & SSL_aNULL) */ 1992 { 1993 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR); 1994 return(NULL); 1995 } 1996 if (c->pkeys[i].x509 == NULL) return(NULL); 1997 1998 return(c->pkeys[i].x509); 1999 } 2000 2001 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher) 2002 { 2003 unsigned long alg; 2004 CERT *c; 2005 2006 alg=cipher->algorithms; 2007 c=s->cert; 2008 2009 if ((alg & SSL_aDSS) && 2010 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 2011 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 2012 else if (alg & SSL_aRSA) 2013 { 2014 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 2015 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 2016 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 2017 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 2018 else 2019 return(NULL); 2020 } 2021 else if ((alg & SSL_aECDSA) && 2022 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 2023 return(c->pkeys[SSL_PKEY_ECC].privatekey); 2024 else /* if (alg & SSL_aNULL) */ 2025 { 2026 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR); 2027 return(NULL); 2028 } 2029 } 2030 2031 void ssl_update_cache(SSL *s,int mode) 2032 { 2033 int i; 2034 2035 /* If the session_id_length is 0, we are not supposed to cache it, 2036 * and it would be rather hard to do anyway :-) */ 2037 if (s->session->session_id_length == 0) return; 2038 2039 i=s->ctx->session_cache_mode; 2040 if ((i & mode) && (!s->hit) 2041 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 2042 || SSL_CTX_add_session(s->ctx,s->session)) 2043 && (s->ctx->new_session_cb != NULL)) 2044 { 2045 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 2046 if (!s->ctx->new_session_cb(s,s->session)) 2047 SSL_SESSION_free(s->session); 2048 } 2049 2050 /* auto flush every 255 connections */ 2051 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 2052 ((i & mode) == mode)) 2053 { 2054 if ( (((mode & SSL_SESS_CACHE_CLIENT) 2055 ?s->ctx->stats.sess_connect_good 2056 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff) 2057 { 2058 SSL_CTX_flush_sessions(s->ctx,(unsigned long)time(NULL)); 2059 } 2060 } 2061 } 2062 2063 SSL_METHOD *SSL_get_ssl_method(SSL *s) 2064 { 2065 return(s->method); 2066 } 2067 2068 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth) 2069 { 2070 int conn= -1; 2071 int ret=1; 2072 2073 if (s->method != meth) 2074 { 2075 if (s->handshake_func != NULL) 2076 conn=(s->handshake_func == s->method->ssl_connect); 2077 2078 if (s->method->version == meth->version) 2079 s->method=meth; 2080 else 2081 { 2082 s->method->ssl_free(s); 2083 s->method=meth; 2084 ret=s->method->ssl_new(s); 2085 } 2086 2087 if (conn == 1) 2088 s->handshake_func=meth->ssl_connect; 2089 else if (conn == 0) 2090 s->handshake_func=meth->ssl_accept; 2091 } 2092 return(ret); 2093 } 2094 2095 int SSL_get_error(const SSL *s,int i) 2096 { 2097 int reason; 2098 unsigned long l; 2099 BIO *bio; 2100 2101 if (i > 0) return(SSL_ERROR_NONE); 2102 2103 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2104 * etc, where we do encode the error */ 2105 if ((l=ERR_peek_error()) != 0) 2106 { 2107 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2108 return(SSL_ERROR_SYSCALL); 2109 else 2110 return(SSL_ERROR_SSL); 2111 } 2112 2113 if ((i < 0) && SSL_want_read(s)) 2114 { 2115 bio=SSL_get_rbio(s); 2116 if (BIO_should_read(bio)) 2117 return(SSL_ERROR_WANT_READ); 2118 else if (BIO_should_write(bio)) 2119 /* This one doesn't make too much sense ... We never try 2120 * to write to the rbio, and an application program where 2121 * rbio and wbio are separate couldn't even know what it 2122 * should wait for. 2123 * However if we ever set s->rwstate incorrectly 2124 * (so that we have SSL_want_read(s) instead of 2125 * SSL_want_write(s)) and rbio and wbio *are* the same, 2126 * this test works around that bug; so it might be safer 2127 * to keep it. */ 2128 return(SSL_ERROR_WANT_WRITE); 2129 else if (BIO_should_io_special(bio)) 2130 { 2131 reason=BIO_get_retry_reason(bio); 2132 if (reason == BIO_RR_CONNECT) 2133 return(SSL_ERROR_WANT_CONNECT); 2134 else if (reason == BIO_RR_ACCEPT) 2135 return(SSL_ERROR_WANT_ACCEPT); 2136 else 2137 return(SSL_ERROR_SYSCALL); /* unknown */ 2138 } 2139 } 2140 2141 if ((i < 0) && SSL_want_write(s)) 2142 { 2143 bio=SSL_get_wbio(s); 2144 if (BIO_should_write(bio)) 2145 return(SSL_ERROR_WANT_WRITE); 2146 else if (BIO_should_read(bio)) 2147 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 2148 return(SSL_ERROR_WANT_READ); 2149 else if (BIO_should_io_special(bio)) 2150 { 2151 reason=BIO_get_retry_reason(bio); 2152 if (reason == BIO_RR_CONNECT) 2153 return(SSL_ERROR_WANT_CONNECT); 2154 else if (reason == BIO_RR_ACCEPT) 2155 return(SSL_ERROR_WANT_ACCEPT); 2156 else 2157 return(SSL_ERROR_SYSCALL); 2158 } 2159 } 2160 if ((i < 0) && SSL_want_x509_lookup(s)) 2161 { 2162 return(SSL_ERROR_WANT_X509_LOOKUP); 2163 } 2164 2165 if (i == 0) 2166 { 2167 if (s->version == SSL2_VERSION) 2168 { 2169 /* assume it is the socket being closed */ 2170 return(SSL_ERROR_ZERO_RETURN); 2171 } 2172 else 2173 { 2174 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2175 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2176 return(SSL_ERROR_ZERO_RETURN); 2177 } 2178 } 2179 return(SSL_ERROR_SYSCALL); 2180 } 2181 2182 int SSL_do_handshake(SSL *s) 2183 { 2184 int ret=1; 2185 2186 if (s->handshake_func == NULL) 2187 { 2188 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 2189 return(-1); 2190 } 2191 2192 s->method->ssl_renegotiate_check(s); 2193 2194 if (SSL_in_init(s) || SSL_in_before(s)) 2195 { 2196 ret=s->handshake_func(s); 2197 } 2198 return(ret); 2199 } 2200 2201 /* For the next 2 functions, SSL_clear() sets shutdown and so 2202 * one of these calls will reset it */ 2203 void SSL_set_accept_state(SSL *s) 2204 { 2205 s->server=1; 2206 s->shutdown=0; 2207 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 2208 s->handshake_func=s->method->ssl_accept; 2209 /* clear the current cipher */ 2210 ssl_clear_cipher_ctx(s); 2211 } 2212 2213 void SSL_set_connect_state(SSL *s) 2214 { 2215 s->server=0; 2216 s->shutdown=0; 2217 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 2218 s->handshake_func=s->method->ssl_connect; 2219 /* clear the current cipher */ 2220 ssl_clear_cipher_ctx(s); 2221 } 2222 2223 int ssl_undefined_function(SSL *s) 2224 { 2225 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2226 return(0); 2227 } 2228 2229 int ssl_undefined_void_function(void) 2230 { 2231 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2232 return(0); 2233 } 2234 2235 int ssl_undefined_const_function(const SSL *s) 2236 { 2237 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2238 return(0); 2239 } 2240 2241 SSL_METHOD *ssl_bad_method(int ver) 2242 { 2243 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2244 return(NULL); 2245 } 2246 2247 const char *SSL_get_version(const SSL *s) 2248 { 2249 if (s->version == TLS1_VERSION) 2250 return("TLSv1"); 2251 else if (s->version == SSL3_VERSION) 2252 return("SSLv3"); 2253 else if (s->version == SSL2_VERSION) 2254 return("SSLv2"); 2255 else 2256 return("unknown"); 2257 } 2258 2259 SSL *SSL_dup(SSL *s) 2260 { 2261 STACK_OF(X509_NAME) *sk; 2262 X509_NAME *xn; 2263 SSL *ret; 2264 int i; 2265 2266 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2267 return(NULL); 2268 2269 ret->version = s->version; 2270 ret->type = s->type; 2271 ret->method = s->method; 2272 2273 if (s->session != NULL) 2274 { 2275 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 2276 SSL_copy_session_id(ret,s); 2277 } 2278 else 2279 { 2280 /* No session has been established yet, so we have to expect 2281 * that s->cert or ret->cert will be changed later -- 2282 * they should not both point to the same object, 2283 * and thus we can't use SSL_copy_session_id. */ 2284 2285 ret->method->ssl_free(ret); 2286 ret->method = s->method; 2287 ret->method->ssl_new(ret); 2288 2289 if (s->cert != NULL) 2290 { 2291 if (ret->cert != NULL) 2292 { 2293 ssl_cert_free(ret->cert); 2294 } 2295 ret->cert = ssl_cert_dup(s->cert); 2296 if (ret->cert == NULL) 2297 goto err; 2298 } 2299 2300 SSL_set_session_id_context(ret, 2301 s->sid_ctx, s->sid_ctx_length); 2302 } 2303 2304 ret->options=s->options; 2305 ret->mode=s->mode; 2306 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s)); 2307 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 2308 ret->msg_callback = s->msg_callback; 2309 ret->msg_callback_arg = s->msg_callback_arg; 2310 SSL_set_verify(ret,SSL_get_verify_mode(s), 2311 SSL_get_verify_callback(s)); 2312 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 2313 ret->generate_session_id = s->generate_session_id; 2314 2315 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 2316 2317 ret->debug=s->debug; 2318 2319 /* copy app data, a little dangerous perhaps */ 2320 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) 2321 goto err; 2322 2323 /* setup rbio, and wbio */ 2324 if (s->rbio != NULL) 2325 { 2326 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2327 goto err; 2328 } 2329 if (s->wbio != NULL) 2330 { 2331 if (s->wbio != s->rbio) 2332 { 2333 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2334 goto err; 2335 } 2336 else 2337 ret->wbio=ret->rbio; 2338 } 2339 ret->rwstate = s->rwstate; 2340 ret->in_handshake = s->in_handshake; 2341 ret->handshake_func = s->handshake_func; 2342 ret->server = s->server; 2343 ret->new_session = s->new_session; 2344 ret->quiet_shutdown = s->quiet_shutdown; 2345 ret->shutdown=s->shutdown; 2346 ret->state=s->state; /* SSL_dup does not really work at any state, though */ 2347 ret->rstate=s->rstate; 2348 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */ 2349 ret->hit=s->hit; 2350 2351 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2352 2353 /* dup the cipher_list and cipher_list_by_id stacks */ 2354 if (s->cipher_list != NULL) 2355 { 2356 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2357 goto err; 2358 } 2359 if (s->cipher_list_by_id != NULL) 2360 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 2361 == NULL) 2362 goto err; 2363 2364 /* Dup the client_CA list */ 2365 if (s->client_CA != NULL) 2366 { 2367 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 2368 ret->client_CA=sk; 2369 for (i=0; i<sk_X509_NAME_num(sk); i++) 2370 { 2371 xn=sk_X509_NAME_value(sk,i); 2372 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 2373 { 2374 X509_NAME_free(xn); 2375 goto err; 2376 } 2377 } 2378 } 2379 2380 if (0) 2381 { 2382 err: 2383 if (ret != NULL) SSL_free(ret); 2384 ret=NULL; 2385 } 2386 return(ret); 2387 } 2388 2389 void ssl_clear_cipher_ctx(SSL *s) 2390 { 2391 if (s->enc_read_ctx != NULL) 2392 { 2393 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 2394 OPENSSL_free(s->enc_read_ctx); 2395 s->enc_read_ctx=NULL; 2396 } 2397 if (s->enc_write_ctx != NULL) 2398 { 2399 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 2400 OPENSSL_free(s->enc_write_ctx); 2401 s->enc_write_ctx=NULL; 2402 } 2403 #ifndef OPENSSL_NO_COMP 2404 if (s->expand != NULL) 2405 { 2406 COMP_CTX_free(s->expand); 2407 s->expand=NULL; 2408 } 2409 if (s->compress != NULL) 2410 { 2411 COMP_CTX_free(s->compress); 2412 s->compress=NULL; 2413 } 2414 #endif 2415 } 2416 2417 /* Fix this function so that it takes an optional type parameter */ 2418 X509 *SSL_get_certificate(const SSL *s) 2419 { 2420 if (s->cert != NULL) 2421 return(s->cert->key->x509); 2422 else 2423 return(NULL); 2424 } 2425 2426 /* Fix this function so that it takes an optional type parameter */ 2427 EVP_PKEY *SSL_get_privatekey(SSL *s) 2428 { 2429 if (s->cert != NULL) 2430 return(s->cert->key->privatekey); 2431 else 2432 return(NULL); 2433 } 2434 2435 SSL_CIPHER *SSL_get_current_cipher(const SSL *s) 2436 { 2437 if ((s->session != NULL) && (s->session->cipher != NULL)) 2438 return(s->session->cipher); 2439 return(NULL); 2440 } 2441 #ifdef OPENSSL_NO_COMP 2442 const void *SSL_get_current_compression(SSL *s) 2443 { 2444 return NULL; 2445 } 2446 const void *SSL_get_current_expansion(SSL *s) 2447 { 2448 return NULL; 2449 } 2450 #else 2451 2452 const COMP_METHOD *SSL_get_current_compression(SSL *s) 2453 { 2454 if (s->compress != NULL) 2455 return(s->compress->meth); 2456 return(NULL); 2457 } 2458 2459 const COMP_METHOD *SSL_get_current_expansion(SSL *s) 2460 { 2461 if (s->expand != NULL) 2462 return(s->expand->meth); 2463 return(NULL); 2464 } 2465 #endif 2466 2467 int ssl_init_wbio_buffer(SSL *s,int push) 2468 { 2469 BIO *bbio; 2470 2471 if (s->bbio == NULL) 2472 { 2473 bbio=BIO_new(BIO_f_buffer()); 2474 if (bbio == NULL) return(0); 2475 s->bbio=bbio; 2476 } 2477 else 2478 { 2479 bbio=s->bbio; 2480 if (s->bbio == s->wbio) 2481 s->wbio=BIO_pop(s->wbio); 2482 } 2483 (void)BIO_reset(bbio); 2484 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2485 if (!BIO_set_read_buffer_size(bbio,1)) 2486 { 2487 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 2488 return(0); 2489 } 2490 if (push) 2491 { 2492 if (s->wbio != bbio) 2493 s->wbio=BIO_push(bbio,s->wbio); 2494 } 2495 else 2496 { 2497 if (s->wbio == bbio) 2498 s->wbio=BIO_pop(bbio); 2499 } 2500 return(1); 2501 } 2502 2503 void ssl_free_wbio_buffer(SSL *s) 2504 { 2505 if (s->bbio == NULL) return; 2506 2507 if (s->bbio == s->wbio) 2508 { 2509 /* remove buffering */ 2510 s->wbio=BIO_pop(s->wbio); 2511 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */ 2512 assert(s->wbio != NULL); 2513 #endif 2514 } 2515 BIO_free(s->bbio); 2516 s->bbio=NULL; 2517 } 2518 2519 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 2520 { 2521 ctx->quiet_shutdown=mode; 2522 } 2523 2524 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2525 { 2526 return(ctx->quiet_shutdown); 2527 } 2528 2529 void SSL_set_quiet_shutdown(SSL *s,int mode) 2530 { 2531 s->quiet_shutdown=mode; 2532 } 2533 2534 int SSL_get_quiet_shutdown(const SSL *s) 2535 { 2536 return(s->quiet_shutdown); 2537 } 2538 2539 void SSL_set_shutdown(SSL *s,int mode) 2540 { 2541 s->shutdown=mode; 2542 } 2543 2544 int SSL_get_shutdown(const SSL *s) 2545 { 2546 return(s->shutdown); 2547 } 2548 2549 int SSL_version(const SSL *s) 2550 { 2551 return(s->version); 2552 } 2553 2554 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) 2555 { 2556 return(ssl->ctx); 2557 } 2558 2559 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2560 { 2561 if (ssl->ctx == ctx) 2562 return ssl->ctx; 2563 #ifndef OPENSSL_NO_TLSEXT 2564 if (ctx == NULL) 2565 ctx = ssl->initial_ctx; 2566 #endif 2567 if (ssl->cert != NULL) 2568 ssl_cert_free(ssl->cert); 2569 ssl->cert = ssl_cert_dup(ctx->cert); 2570 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 2571 if (ssl->ctx != NULL) 2572 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2573 ssl->ctx = ctx; 2574 return(ssl->ctx); 2575 } 2576 2577 #ifndef OPENSSL_NO_STDIO 2578 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2579 { 2580 return(X509_STORE_set_default_paths(ctx->cert_store)); 2581 } 2582 2583 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2584 const char *CApath) 2585 { 2586 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 2587 } 2588 #endif 2589 2590 void SSL_set_info_callback(SSL *ssl, 2591 void (*cb)(const SSL *ssl,int type,int val)) 2592 { 2593 ssl->info_callback=cb; 2594 } 2595 2596 /* One compiler (Diab DCC) doesn't like argument names in returned 2597 function pointer. */ 2598 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/) 2599 { 2600 return ssl->info_callback; 2601 } 2602 2603 int SSL_state(const SSL *ssl) 2604 { 2605 return(ssl->state); 2606 } 2607 2608 void SSL_set_verify_result(SSL *ssl,long arg) 2609 { 2610 ssl->verify_result=arg; 2611 } 2612 2613 long SSL_get_verify_result(const SSL *ssl) 2614 { 2615 return(ssl->verify_result); 2616 } 2617 2618 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2619 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2620 { 2621 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2622 new_func, dup_func, free_func); 2623 } 2624 2625 int SSL_set_ex_data(SSL *s,int idx,void *arg) 2626 { 2627 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2628 } 2629 2630 void *SSL_get_ex_data(const SSL *s,int idx) 2631 { 2632 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2633 } 2634 2635 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2636 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2637 { 2638 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2639 new_func, dup_func, free_func); 2640 } 2641 2642 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 2643 { 2644 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2645 } 2646 2647 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx) 2648 { 2649 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2650 } 2651 2652 int ssl_ok(SSL *s) 2653 { 2654 return(1); 2655 } 2656 2657 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2658 { 2659 return(ctx->cert_store); 2660 } 2661 2662 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 2663 { 2664 if (ctx->cert_store != NULL) 2665 X509_STORE_free(ctx->cert_store); 2666 ctx->cert_store=store; 2667 } 2668 2669 int SSL_want(const SSL *s) 2670 { 2671 return(s->rwstate); 2672 } 2673 2674 /*! 2675 * \brief Set the callback for generating temporary RSA keys. 2676 * \param ctx the SSL context. 2677 * \param cb the callback 2678 */ 2679 2680 #ifndef OPENSSL_NO_RSA 2681 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2682 int is_export, 2683 int keylength)) 2684 { 2685 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2686 } 2687 2688 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2689 int is_export, 2690 int keylength)) 2691 { 2692 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2693 } 2694 #endif 2695 2696 #ifdef DOXYGEN 2697 /*! 2698 * \brief The RSA temporary key callback function. 2699 * \param ssl the SSL session. 2700 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2701 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2702 * of the required key in bits. 2703 * \return the temporary RSA key. 2704 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2705 */ 2706 2707 RSA *cb(SSL *ssl,int is_export,int keylength) 2708 {} 2709 #endif 2710 2711 /*! 2712 * \brief Set the callback for generating temporary DH keys. 2713 * \param ctx the SSL context. 2714 * \param dh the callback 2715 */ 2716 2717 #ifndef OPENSSL_NO_DH 2718 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2719 int keylength)) 2720 { 2721 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2722 } 2723 2724 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2725 int keylength)) 2726 { 2727 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2728 } 2729 #endif 2730 2731 #ifndef OPENSSL_NO_ECDH 2732 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2733 int keylength)) 2734 { 2735 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2736 } 2737 2738 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2739 int keylength)) 2740 { 2741 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2742 } 2743 #endif 2744 2745 2746 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)) 2747 { 2748 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2749 } 2750 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)) 2751 { 2752 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2753 } 2754 2755 int SSL_cutthrough_complete(const SSL *s) 2756 { 2757 return (!s->server && /* cutthrough only applies to clients */ 2758 !s->hit && /* full-handshake */ 2759 s->version >= SSL3_VERSION && 2760 s->s3->in_read_app_data == 0 && /* cutthrough only applies to write() */ 2761 (SSL_get_mode((SSL*)s) & SSL_MODE_HANDSHAKE_CUTTHROUGH) && /* cutthrough enabled */ 2762 SSL_get_cipher_bits(s, NULL) >= 128 && /* strong cipher choosen */ 2763 (s->state == SSL3_ST_CR_SESSION_TICKET_A || /* ready to write app-data*/ 2764 s->state == SSL3_ST_CR_FINISHED_A)); 2765 } 2766 2767 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16) 2768 #include "../crypto/bio/bss_file.c" 2769 #endif 2770 2771 IMPLEMENT_STACK_OF(SSL_CIPHER) 2772 IMPLEMENT_STACK_OF(SSL_COMP) 2773