1 /*! \file ssl/ssl_lib.c 2 * \brief Version independent SSL functions. 3 */ 4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 5 * All rights reserved. 6 * 7 * This package is an SSL implementation written 8 * by Eric Young (eay@cryptsoft.com). 9 * The implementation was written so as to conform with Netscapes SSL. 10 * 11 * This library is free for commercial and non-commercial use as long as 12 * the following conditions are aheared to. The following conditions 13 * apply to all code found in this distribution, be it the RC4, RSA, 14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 15 * included with this distribution is covered by the same copyright terms 16 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 17 * 18 * Copyright remains Eric Young's, and as such any Copyright notices in 19 * the code are not to be removed. 20 * If this package is used in a product, Eric Young should be given attribution 21 * as the author of the parts of the library used. 22 * This can be in the form of a textual message at program startup or 23 * in documentation (online or textual) provided with the package. 24 * 25 * Redistribution and use in source and binary forms, with or without 26 * modification, are permitted provided that the following conditions 27 * are met: 28 * 1. Redistributions of source code must retain the copyright 29 * notice, this list of conditions and the following disclaimer. 30 * 2. Redistributions in binary form must reproduce the above copyright 31 * notice, this list of conditions and the following disclaimer in the 32 * documentation and/or other materials provided with the distribution. 33 * 3. All advertising materials mentioning features or use of this software 34 * must display the following acknowledgement: 35 * "This product includes cryptographic software written by 36 * Eric Young (eay@cryptsoft.com)" 37 * The word 'cryptographic' can be left out if the rouines from the library 38 * being used are not cryptographic related :-). 39 * 4. If you include any Windows specific code (or a derivative thereof) from 40 * the apps directory (application code) you must include an acknowledgement: 41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 42 * 43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53 * SUCH DAMAGE. 54 * 55 * The licence and distribution terms for any publically available version or 56 * derivative of this code cannot be changed. i.e. this code cannot simply be 57 * copied and put under another distribution licence 58 * [including the GNU Public Licence.] 59 */ 60 /* ==================================================================== 61 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. 62 * 63 * Redistribution and use in source and binary forms, with or without 64 * modification, are permitted provided that the following conditions 65 * are met: 66 * 67 * 1. Redistributions of source code must retain the above copyright 68 * notice, this list of conditions and the following disclaimer. 69 * 70 * 2. Redistributions in binary form must reproduce the above copyright 71 * notice, this list of conditions and the following disclaimer in 72 * the documentation and/or other materials provided with the 73 * distribution. 74 * 75 * 3. All advertising materials mentioning features or use of this 76 * software must display the following acknowledgment: 77 * "This product includes software developed by the OpenSSL Project 78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 79 * 80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 81 * endorse or promote products derived from this software without 82 * prior written permission. For written permission, please contact 83 * openssl-core@openssl.org. 84 * 85 * 5. Products derived from this software may not be called "OpenSSL" 86 * nor may "OpenSSL" appear in their names without prior written 87 * permission of the OpenSSL Project. 88 * 89 * 6. Redistributions of any form whatsoever must retain the following 90 * acknowledgment: 91 * "This product includes software developed by the OpenSSL Project 92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 93 * 94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 105 * OF THE POSSIBILITY OF SUCH DAMAGE. 106 * ==================================================================== 107 * 108 * This product includes cryptographic software written by Eric Young 109 * (eay@cryptsoft.com). This product includes software written by Tim 110 * Hudson (tjh@cryptsoft.com). 111 * 112 */ 113 /* ==================================================================== 114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 115 * ECC cipher suite support in OpenSSL originally developed by 116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. 117 */ 118 119 #ifdef REF_CHECK 120 # include <assert.h> 121 #endif 122 #include <stdio.h> 123 #include "ssl_locl.h" 124 #include "kssl_lcl.h" 125 #include <openssl/objects.h> 126 #include <openssl/lhash.h> 127 #include <openssl/x509v3.h> 128 #include <openssl/rand.h> 129 #include <openssl/ocsp.h> 130 #ifndef OPENSSL_NO_DH 131 #include <openssl/dh.h> 132 #endif 133 134 const char *SSL_version_str=OPENSSL_VERSION_TEXT; 135 136 SSL3_ENC_METHOD ssl3_undef_enc_method={ 137 /* evil casts, but these functions are only called if there's a library bug */ 138 (int (*)(SSL *,int))ssl_undefined_function, 139 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, 140 ssl_undefined_function, 141 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function, 142 (int (*)(SSL*, int))ssl_undefined_function, 143 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function, 144 0, /* finish_mac_length */ 145 (int (*)(SSL *, EVP_MD_CTX *, unsigned char *))ssl_undefined_function, 146 NULL, /* client_finished_label */ 147 0, /* client_finished_label_len */ 148 NULL, /* server_finished_label */ 149 0, /* server_finished_label_len */ 150 (int (*)(int))ssl_undefined_function 151 }; 152 153 int SSL_clear(SSL *s) 154 { 155 156 if (s->method == NULL) 157 { 158 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED); 159 return(0); 160 } 161 162 if (ssl_clear_bad_session(s)) 163 { 164 SSL_SESSION_free(s->session); 165 s->session=NULL; 166 } 167 168 s->error=0; 169 s->hit=0; 170 s->shutdown=0; 171 172 #if 0 /* Disabled since version 1.10 of this file (early return not 173 * needed because SSL_clear is not called when doing renegotiation) */ 174 /* This is set if we are doing dynamic renegotiation so keep 175 * the old cipher. It is sort of a SSL_clear_lite :-) */ 176 if (s->new_session) return(1); 177 #else 178 if (s->new_session) 179 { 180 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR); 181 return 0; 182 } 183 #endif 184 185 s->type=0; 186 187 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT); 188 189 s->version=s->method->version; 190 s->client_version=s->version; 191 s->rwstate=SSL_NOTHING; 192 s->rstate=SSL_ST_READ_HEADER; 193 #if 0 194 s->read_ahead=s->ctx->read_ahead; 195 #endif 196 197 if (s->init_buf != NULL) 198 { 199 BUF_MEM_free(s->init_buf); 200 s->init_buf=NULL; 201 } 202 203 ssl_clear_cipher_ctx(s); 204 205 s->first_packet=0; 206 207 #if 1 208 /* Check to see if we were changed into a different method, if 209 * so, revert back if we are not doing session-id reuse. */ 210 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method)) 211 { 212 s->method->ssl_free(s); 213 s->method=s->ctx->method; 214 if (!s->method->ssl_new(s)) 215 return(0); 216 } 217 else 218 #endif 219 s->method->ssl_clear(s); 220 return(1); 221 } 222 223 /** Used to change an SSL_CTXs default SSL method type */ 224 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth) 225 { 226 STACK_OF(SSL_CIPHER) *sk; 227 228 ctx->method=meth; 229 230 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list), 231 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST); 232 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) 233 { 234 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 235 return(0); 236 } 237 return(1); 238 } 239 240 SSL *SSL_new(SSL_CTX *ctx) 241 { 242 SSL *s; 243 244 if (ctx == NULL) 245 { 246 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX); 247 return(NULL); 248 } 249 if (ctx->method == NULL) 250 { 251 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 252 return(NULL); 253 } 254 255 s=(SSL *)OPENSSL_malloc(sizeof(SSL)); 256 if (s == NULL) goto err; 257 memset(s,0,sizeof(SSL)); 258 259 #ifndef OPENSSL_NO_KRB5 260 s->kssl_ctx = kssl_ctx_new(); 261 #endif /* OPENSSL_NO_KRB5 */ 262 263 s->options=ctx->options; 264 s->mode=ctx->mode; 265 s->max_cert_list=ctx->max_cert_list; 266 267 if (ctx->cert != NULL) 268 { 269 /* Earlier library versions used to copy the pointer to 270 * the CERT, not its contents; only when setting new 271 * parameters for the per-SSL copy, ssl_cert_new would be 272 * called (and the direct reference to the per-SSL_CTX 273 * settings would be lost, but those still were indirectly 274 * accessed for various purposes, and for that reason they 275 * used to be known as s->ctx->default_cert). 276 * Now we don't look at the SSL_CTX's CERT after having 277 * duplicated it once. */ 278 279 s->cert = ssl_cert_dup(ctx->cert); 280 if (s->cert == NULL) 281 goto err; 282 } 283 else 284 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 285 286 s->read_ahead=ctx->read_ahead; 287 s->msg_callback=ctx->msg_callback; 288 s->msg_callback_arg=ctx->msg_callback_arg; 289 s->verify_mode=ctx->verify_mode; 290 #if 0 291 s->verify_depth=ctx->verify_depth; 292 #endif 293 s->sid_ctx_length=ctx->sid_ctx_length; 294 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); 295 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx)); 296 s->verify_callback=ctx->default_verify_callback; 297 s->generate_session_id=ctx->generate_session_id; 298 299 s->param = X509_VERIFY_PARAM_new(); 300 if (!s->param) 301 goto err; 302 X509_VERIFY_PARAM_inherit(s->param, ctx->param); 303 #if 0 304 s->purpose = ctx->purpose; 305 s->trust = ctx->trust; 306 #endif 307 s->quiet_shutdown=ctx->quiet_shutdown; 308 309 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 310 s->ctx=ctx; 311 #ifndef OPENSSL_NO_TLSEXT 312 s->tlsext_debug_cb = 0; 313 s->tlsext_debug_arg = NULL; 314 s->tlsext_ticket_expected = 0; 315 s->tlsext_status_type = -1; 316 s->tlsext_status_expected = 0; 317 s->tlsext_ocsp_ids = NULL; 318 s->tlsext_ocsp_exts = NULL; 319 s->tlsext_ocsp_resp = NULL; 320 s->tlsext_ocsp_resplen = -1; 321 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 322 s->initial_ctx=ctx; 323 #endif 324 s->verify_result=X509_V_OK; 325 326 s->method=ctx->method; 327 328 if (!s->method->ssl_new(s)) 329 goto err; 330 331 s->references=1; 332 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1; 333 334 SSL_clear(s); 335 336 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 337 338 return(s); 339 err: 340 if (s != NULL) 341 { 342 if (s->cert != NULL) 343 ssl_cert_free(s->cert); 344 if (s->ctx != NULL) 345 SSL_CTX_free(s->ctx); /* decrement reference count */ 346 OPENSSL_free(s); 347 } 348 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE); 349 return(NULL); 350 } 351 352 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx, 353 unsigned int sid_ctx_len) 354 { 355 if(sid_ctx_len > sizeof ctx->sid_ctx) 356 { 357 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 358 return 0; 359 } 360 ctx->sid_ctx_length=sid_ctx_len; 361 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len); 362 363 return 1; 364 } 365 366 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx, 367 unsigned int sid_ctx_len) 368 { 369 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 370 { 371 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 372 return 0; 373 } 374 ssl->sid_ctx_length=sid_ctx_len; 375 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len); 376 377 return 1; 378 } 379 380 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) 381 { 382 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 383 ctx->generate_session_id = cb; 384 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 385 return 1; 386 } 387 388 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) 389 { 390 CRYPTO_w_lock(CRYPTO_LOCK_SSL); 391 ssl->generate_session_id = cb; 392 CRYPTO_w_unlock(CRYPTO_LOCK_SSL); 393 return 1; 394 } 395 396 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, 397 unsigned int id_len) 398 { 399 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how 400 * we can "construct" a session to give us the desired check - ie. to 401 * find if there's a session in the hash table that would conflict with 402 * any new session built out of this id/id_len and the ssl_version in 403 * use by this SSL. */ 404 SSL_SESSION r, *p; 405 406 if(id_len > sizeof r.session_id) 407 return 0; 408 409 r.ssl_version = ssl->version; 410 r.session_id_length = id_len; 411 memcpy(r.session_id, id, id_len); 412 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a 413 * callback is calling us to check the uniqueness of a shorter ID, it 414 * must be compared as a padded-out ID because that is what it will be 415 * converted to when the callback has finished choosing it. */ 416 if((r.ssl_version == SSL2_VERSION) && 417 (id_len < SSL2_SSL_SESSION_ID_LENGTH)) 418 { 419 memset(r.session_id + id_len, 0, 420 SSL2_SSL_SESSION_ID_LENGTH - id_len); 421 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH; 422 } 423 424 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 425 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r); 426 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 427 return (p != NULL); 428 } 429 430 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 431 { 432 return X509_VERIFY_PARAM_set_purpose(s->param, purpose); 433 } 434 435 int SSL_set_purpose(SSL *s, int purpose) 436 { 437 return X509_VERIFY_PARAM_set_purpose(s->param, purpose); 438 } 439 440 int SSL_CTX_set_trust(SSL_CTX *s, int trust) 441 { 442 return X509_VERIFY_PARAM_set_trust(s->param, trust); 443 } 444 445 int SSL_set_trust(SSL *s, int trust) 446 { 447 return X509_VERIFY_PARAM_set_trust(s->param, trust); 448 } 449 450 void SSL_free(SSL *s) 451 { 452 int i; 453 454 if(s == NULL) 455 return; 456 457 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL); 458 #ifdef REF_PRINT 459 REF_PRINT("SSL",s); 460 #endif 461 if (i > 0) return; 462 #ifdef REF_CHECK 463 if (i < 0) 464 { 465 fprintf(stderr,"SSL_free, bad reference count\n"); 466 abort(); /* ok */ 467 } 468 #endif 469 470 if (s->param) 471 X509_VERIFY_PARAM_free(s->param); 472 473 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); 474 475 if (s->bbio != NULL) 476 { 477 /* If the buffering BIO is in place, pop it off */ 478 if (s->bbio == s->wbio) 479 { 480 s->wbio=BIO_pop(s->wbio); 481 } 482 BIO_free(s->bbio); 483 s->bbio=NULL; 484 } 485 if (s->rbio != NULL) 486 BIO_free_all(s->rbio); 487 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 488 BIO_free_all(s->wbio); 489 490 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf); 491 492 /* add extra stuff */ 493 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list); 494 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id); 495 496 /* Make the next call work :-) */ 497 if (s->session != NULL) 498 { 499 ssl_clear_bad_session(s); 500 SSL_SESSION_free(s->session); 501 } 502 503 ssl_clear_cipher_ctx(s); 504 505 if (s->cert != NULL) ssl_cert_free(s->cert); 506 /* Free up if allocated */ 507 508 if (s->ctx) SSL_CTX_free(s->ctx); 509 #ifndef OPENSSL_NO_TLSEXT 510 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx); 511 if (s->tlsext_ocsp_exts) 512 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 513 X509_EXTENSION_free); 514 if (s->tlsext_ocsp_ids) 515 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 516 if (s->tlsext_ocsp_resp) 517 OPENSSL_free(s->tlsext_ocsp_resp); 518 #endif 519 if (s->client_CA != NULL) 520 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free); 521 522 if (s->method != NULL) s->method->ssl_free(s); 523 524 #ifndef OPENSSL_NO_KRB5 525 if (s->kssl_ctx != NULL) 526 kssl_ctx_free(s->kssl_ctx); 527 #endif /* OPENSSL_NO_KRB5 */ 528 529 OPENSSL_free(s); 530 } 531 532 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio) 533 { 534 /* If the output buffering BIO is still in place, remove it 535 */ 536 if (s->bbio != NULL) 537 { 538 if (s->wbio == s->bbio) 539 { 540 s->wbio=s->wbio->next_bio; 541 s->bbio->next_bio=NULL; 542 } 543 } 544 if ((s->rbio != NULL) && (s->rbio != rbio)) 545 BIO_free_all(s->rbio); 546 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 547 BIO_free_all(s->wbio); 548 s->rbio=rbio; 549 s->wbio=wbio; 550 } 551 552 BIO *SSL_get_rbio(const SSL *s) 553 { return(s->rbio); } 554 555 BIO *SSL_get_wbio(const SSL *s) 556 { return(s->wbio); } 557 558 int SSL_get_fd(const SSL *s) 559 { 560 return(SSL_get_rfd(s)); 561 } 562 563 int SSL_get_rfd(const SSL *s) 564 { 565 int ret= -1; 566 BIO *b,*r; 567 568 b=SSL_get_rbio(s); 569 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 570 if (r != NULL) 571 BIO_get_fd(r,&ret); 572 return(ret); 573 } 574 575 int SSL_get_wfd(const SSL *s) 576 { 577 int ret= -1; 578 BIO *b,*r; 579 580 b=SSL_get_wbio(s); 581 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 582 if (r != NULL) 583 BIO_get_fd(r,&ret); 584 return(ret); 585 } 586 587 #ifndef OPENSSL_NO_SOCK 588 int SSL_set_fd(SSL *s,int fd) 589 { 590 int ret=0; 591 BIO *bio=NULL; 592 593 bio=BIO_new(BIO_s_socket()); 594 595 if (bio == NULL) 596 { 597 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 598 goto err; 599 } 600 BIO_set_fd(bio,fd,BIO_NOCLOSE); 601 SSL_set_bio(s,bio,bio); 602 ret=1; 603 err: 604 return(ret); 605 } 606 607 int SSL_set_wfd(SSL *s,int fd) 608 { 609 int ret=0; 610 BIO *bio=NULL; 611 612 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 613 || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 614 { 615 bio=BIO_new(BIO_s_socket()); 616 617 if (bio == NULL) 618 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 619 BIO_set_fd(bio,fd,BIO_NOCLOSE); 620 SSL_set_bio(s,SSL_get_rbio(s),bio); 621 } 622 else 623 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 624 ret=1; 625 err: 626 return(ret); 627 } 628 629 int SSL_set_rfd(SSL *s,int fd) 630 { 631 int ret=0; 632 BIO *bio=NULL; 633 634 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 635 || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 636 { 637 bio=BIO_new(BIO_s_socket()); 638 639 if (bio == NULL) 640 { 641 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 642 goto err; 643 } 644 BIO_set_fd(bio,fd,BIO_NOCLOSE); 645 SSL_set_bio(s,bio,SSL_get_wbio(s)); 646 } 647 else 648 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 649 ret=1; 650 err: 651 return(ret); 652 } 653 #endif 654 655 656 /* return length of latest Finished message we sent, copy to 'buf' */ 657 size_t SSL_get_finished(const SSL *s, void *buf, size_t count) 658 { 659 size_t ret = 0; 660 661 if (s->s3 != NULL) 662 { 663 ret = s->s3->tmp.finish_md_len; 664 if (count > ret) 665 count = ret; 666 memcpy(buf, s->s3->tmp.finish_md, count); 667 } 668 return ret; 669 } 670 671 /* return length of latest Finished message we expected, copy to 'buf' */ 672 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 673 { 674 size_t ret = 0; 675 676 if (s->s3 != NULL) 677 { 678 ret = s->s3->tmp.peer_finish_md_len; 679 if (count > ret) 680 count = ret; 681 memcpy(buf, s->s3->tmp.peer_finish_md, count); 682 } 683 return ret; 684 } 685 686 687 int SSL_get_verify_mode(const SSL *s) 688 { 689 return(s->verify_mode); 690 } 691 692 int SSL_get_verify_depth(const SSL *s) 693 { 694 return X509_VERIFY_PARAM_get_depth(s->param); 695 } 696 697 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *) 698 { 699 return(s->verify_callback); 700 } 701 702 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 703 { 704 return(ctx->verify_mode); 705 } 706 707 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 708 { 709 return X509_VERIFY_PARAM_get_depth(ctx->param); 710 } 711 712 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *) 713 { 714 return(ctx->default_verify_callback); 715 } 716 717 void SSL_set_verify(SSL *s,int mode, 718 int (*callback)(int ok,X509_STORE_CTX *ctx)) 719 { 720 s->verify_mode=mode; 721 if (callback != NULL) 722 s->verify_callback=callback; 723 } 724 725 void SSL_set_verify_depth(SSL *s,int depth) 726 { 727 X509_VERIFY_PARAM_set_depth(s->param, depth); 728 } 729 730 void SSL_set_read_ahead(SSL *s,int yes) 731 { 732 s->read_ahead=yes; 733 } 734 735 int SSL_get_read_ahead(const SSL *s) 736 { 737 return(s->read_ahead); 738 } 739 740 int SSL_pending(const SSL *s) 741 { 742 /* SSL_pending cannot work properly if read-ahead is enabled 743 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 744 * and it is impossible to fix since SSL_pending cannot report 745 * errors that may be observed while scanning the new data. 746 * (Note that SSL_pending() is often used as a boolean value, 747 * so we'd better not return -1.) 748 */ 749 return(s->method->ssl_pending(s)); 750 } 751 752 X509 *SSL_get_peer_certificate(const SSL *s) 753 { 754 X509 *r; 755 756 if ((s == NULL) || (s->session == NULL)) 757 r=NULL; 758 else 759 r=s->session->peer; 760 761 if (r == NULL) return(r); 762 763 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 764 765 return(r); 766 } 767 768 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) 769 { 770 STACK_OF(X509) *r; 771 772 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 773 r=NULL; 774 else 775 r=s->session->sess_cert->cert_chain; 776 777 /* If we are a client, cert_chain includes the peer's own 778 * certificate; if we are a server, it does not. */ 779 780 return(r); 781 } 782 783 /* Now in theory, since the calling process own 't' it should be safe to 784 * modify. We need to be able to read f without being hassled */ 785 void SSL_copy_session_id(SSL *t,const SSL *f) 786 { 787 CERT *tmp; 788 789 /* Do we need to to SSL locking? */ 790 SSL_set_session(t,SSL_get_session(f)); 791 792 /* what if we are setup as SSLv2 but want to talk SSLv3 or 793 * vice-versa */ 794 if (t->method != f->method) 795 { 796 t->method->ssl_free(t); /* cleanup current */ 797 t->method=f->method; /* change method */ 798 t->method->ssl_new(t); /* setup new */ 799 } 800 801 tmp=t->cert; 802 if (f->cert != NULL) 803 { 804 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 805 t->cert=f->cert; 806 } 807 else 808 t->cert=NULL; 809 if (tmp != NULL) ssl_cert_free(tmp); 810 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length); 811 } 812 813 /* Fix this so it checks all the valid key/cert options */ 814 int SSL_CTX_check_private_key(const SSL_CTX *ctx) 815 { 816 if ( (ctx == NULL) || 817 (ctx->cert == NULL) || 818 (ctx->cert->key->x509 == NULL)) 819 { 820 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 821 return(0); 822 } 823 if (ctx->cert->key->privatekey == NULL) 824 { 825 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 826 return(0); 827 } 828 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 829 } 830 831 /* Fix this function so that it takes an optional type parameter */ 832 int SSL_check_private_key(const SSL *ssl) 833 { 834 if (ssl == NULL) 835 { 836 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 837 return(0); 838 } 839 if (ssl->cert == NULL) 840 { 841 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 842 return 0; 843 } 844 if (ssl->cert->key->x509 == NULL) 845 { 846 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 847 return(0); 848 } 849 if (ssl->cert->key->privatekey == NULL) 850 { 851 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 852 return(0); 853 } 854 return(X509_check_private_key(ssl->cert->key->x509, 855 ssl->cert->key->privatekey)); 856 } 857 858 int SSL_accept(SSL *s) 859 { 860 if (s->handshake_func == 0) 861 /* Not properly initialized yet */ 862 SSL_set_accept_state(s); 863 864 return(s->method->ssl_accept(s)); 865 } 866 867 int SSL_connect(SSL *s) 868 { 869 if (s->handshake_func == 0) 870 /* Not properly initialized yet */ 871 SSL_set_connect_state(s); 872 873 return(s->method->ssl_connect(s)); 874 } 875 876 long SSL_get_default_timeout(const SSL *s) 877 { 878 return(s->method->get_timeout()); 879 } 880 881 int SSL_read(SSL *s,void *buf,int num) 882 { 883 if (s->handshake_func == 0) 884 { 885 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 886 return -1; 887 } 888 889 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 890 { 891 s->rwstate=SSL_NOTHING; 892 return(0); 893 } 894 return(s->method->ssl_read(s,buf,num)); 895 } 896 897 int SSL_peek(SSL *s,void *buf,int num) 898 { 899 if (s->handshake_func == 0) 900 { 901 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); 902 return -1; 903 } 904 905 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 906 { 907 return(0); 908 } 909 return(s->method->ssl_peek(s,buf,num)); 910 } 911 912 int SSL_write(SSL *s,const void *buf,int num) 913 { 914 if (s->handshake_func == 0) 915 { 916 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 917 return -1; 918 } 919 920 if (s->shutdown & SSL_SENT_SHUTDOWN) 921 { 922 s->rwstate=SSL_NOTHING; 923 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 924 return(-1); 925 } 926 return(s->method->ssl_write(s,buf,num)); 927 } 928 929 int SSL_shutdown(SSL *s) 930 { 931 /* Note that this function behaves differently from what one might 932 * expect. Return values are 0 for no success (yet), 933 * 1 for success; but calling it once is usually not enough, 934 * even if blocking I/O is used (see ssl3_shutdown). 935 */ 936 937 if (s->handshake_func == 0) 938 { 939 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 940 return -1; 941 } 942 943 if ((s != NULL) && !SSL_in_init(s)) 944 return(s->method->ssl_shutdown(s)); 945 else 946 return(1); 947 } 948 949 int SSL_renegotiate(SSL *s) 950 { 951 if (s->new_session == 0) 952 { 953 s->new_session=1; 954 } 955 return(s->method->ssl_renegotiate(s)); 956 } 957 958 int SSL_renegotiate_pending(SSL *s) 959 { 960 /* becomes true when negotiation is requested; 961 * false again once a handshake has finished */ 962 return (s->new_session != 0); 963 } 964 965 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg) 966 { 967 long l; 968 969 switch (cmd) 970 { 971 case SSL_CTRL_GET_READ_AHEAD: 972 return(s->read_ahead); 973 case SSL_CTRL_SET_READ_AHEAD: 974 l=s->read_ahead; 975 s->read_ahead=larg; 976 return(l); 977 978 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 979 s->msg_callback_arg = parg; 980 return 1; 981 982 case SSL_CTRL_OPTIONS: 983 return(s->options|=larg); 984 case SSL_CTRL_MODE: 985 return(s->mode|=larg); 986 case SSL_CTRL_GET_MAX_CERT_LIST: 987 return(s->max_cert_list); 988 case SSL_CTRL_SET_MAX_CERT_LIST: 989 l=s->max_cert_list; 990 s->max_cert_list=larg; 991 return(l); 992 case SSL_CTRL_SET_MTU: 993 if (SSL_version(s) == DTLS1_VERSION) 994 { 995 s->d1->mtu = larg; 996 return larg; 997 } 998 return 0; 999 default: 1000 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 1001 } 1002 } 1003 1004 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1005 { 1006 switch(cmd) 1007 { 1008 case SSL_CTRL_SET_MSG_CALLBACK: 1009 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1010 return 1; 1011 1012 default: 1013 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 1014 } 1015 } 1016 1017 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx) 1018 { 1019 return ctx->sessions; 1020 } 1021 1022 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg) 1023 { 1024 long l; 1025 1026 switch (cmd) 1027 { 1028 case SSL_CTRL_GET_READ_AHEAD: 1029 return(ctx->read_ahead); 1030 case SSL_CTRL_SET_READ_AHEAD: 1031 l=ctx->read_ahead; 1032 ctx->read_ahead=larg; 1033 return(l); 1034 1035 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1036 ctx->msg_callback_arg = parg; 1037 return 1; 1038 1039 case SSL_CTRL_GET_MAX_CERT_LIST: 1040 return(ctx->max_cert_list); 1041 case SSL_CTRL_SET_MAX_CERT_LIST: 1042 l=ctx->max_cert_list; 1043 ctx->max_cert_list=larg; 1044 return(l); 1045 1046 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1047 l=ctx->session_cache_size; 1048 ctx->session_cache_size=larg; 1049 return(l); 1050 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1051 return(ctx->session_cache_size); 1052 case SSL_CTRL_SET_SESS_CACHE_MODE: 1053 l=ctx->session_cache_mode; 1054 ctx->session_cache_mode=larg; 1055 return(l); 1056 case SSL_CTRL_GET_SESS_CACHE_MODE: 1057 return(ctx->session_cache_mode); 1058 1059 case SSL_CTRL_SESS_NUMBER: 1060 return(ctx->sessions->num_items); 1061 case SSL_CTRL_SESS_CONNECT: 1062 return(ctx->stats.sess_connect); 1063 case SSL_CTRL_SESS_CONNECT_GOOD: 1064 return(ctx->stats.sess_connect_good); 1065 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1066 return(ctx->stats.sess_connect_renegotiate); 1067 case SSL_CTRL_SESS_ACCEPT: 1068 return(ctx->stats.sess_accept); 1069 case SSL_CTRL_SESS_ACCEPT_GOOD: 1070 return(ctx->stats.sess_accept_good); 1071 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1072 return(ctx->stats.sess_accept_renegotiate); 1073 case SSL_CTRL_SESS_HIT: 1074 return(ctx->stats.sess_hit); 1075 case SSL_CTRL_SESS_CB_HIT: 1076 return(ctx->stats.sess_cb_hit); 1077 case SSL_CTRL_SESS_MISSES: 1078 return(ctx->stats.sess_miss); 1079 case SSL_CTRL_SESS_TIMEOUTS: 1080 return(ctx->stats.sess_timeout); 1081 case SSL_CTRL_SESS_CACHE_FULL: 1082 return(ctx->stats.sess_cache_full); 1083 case SSL_CTRL_OPTIONS: 1084 return(ctx->options|=larg); 1085 case SSL_CTRL_MODE: 1086 return(ctx->mode|=larg); 1087 default: 1088 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 1089 } 1090 } 1091 1092 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1093 { 1094 switch(cmd) 1095 { 1096 case SSL_CTRL_SET_MSG_CALLBACK: 1097 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1098 return 1; 1099 1100 default: 1101 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 1102 } 1103 } 1104 1105 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1106 { 1107 long l; 1108 1109 l=a->id-b->id; 1110 if (l == 0L) 1111 return(0); 1112 else 1113 return((l > 0)?1:-1); 1114 } 1115 1116 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1117 const SSL_CIPHER * const *bp) 1118 { 1119 long l; 1120 1121 l=(*ap)->id-(*bp)->id; 1122 if (l == 0L) 1123 return(0); 1124 else 1125 return((l > 0)?1:-1); 1126 } 1127 1128 /** return a STACK of the ciphers available for the SSL and in order of 1129 * preference */ 1130 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) 1131 { 1132 if (s != NULL) 1133 { 1134 if (s->cipher_list != NULL) 1135 { 1136 return(s->cipher_list); 1137 } 1138 else if ((s->ctx != NULL) && 1139 (s->ctx->cipher_list != NULL)) 1140 { 1141 return(s->ctx->cipher_list); 1142 } 1143 } 1144 return(NULL); 1145 } 1146 1147 /** return a STACK of the ciphers available for the SSL and in order of 1148 * algorithm id */ 1149 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 1150 { 1151 if (s != NULL) 1152 { 1153 if (s->cipher_list_by_id != NULL) 1154 { 1155 return(s->cipher_list_by_id); 1156 } 1157 else if ((s->ctx != NULL) && 1158 (s->ctx->cipher_list_by_id != NULL)) 1159 { 1160 return(s->ctx->cipher_list_by_id); 1161 } 1162 } 1163 return(NULL); 1164 } 1165 1166 /** The old interface to get the same thing as SSL_get_ciphers() */ 1167 const char *SSL_get_cipher_list(const SSL *s,int n) 1168 { 1169 SSL_CIPHER *c; 1170 STACK_OF(SSL_CIPHER) *sk; 1171 1172 if (s == NULL) return(NULL); 1173 sk=SSL_get_ciphers(s); 1174 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1175 return(NULL); 1176 c=sk_SSL_CIPHER_value(sk,n); 1177 if (c == NULL) return(NULL); 1178 return(c->name); 1179 } 1180 1181 /** specify the ciphers to be used by default by the SSL_CTX */ 1182 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1183 { 1184 STACK_OF(SSL_CIPHER) *sk; 1185 1186 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 1187 &ctx->cipher_list_by_id,str); 1188 /* ssl_create_cipher_list may return an empty stack if it 1189 * was unable to find a cipher matching the given rule string 1190 * (for example if the rule string specifies a cipher which 1191 * has been disabled). This is not an error as far as 1192 * ssl_create_cipher_list is concerned, and hence 1193 * ctx->cipher_list and ctx->cipher_list_by_id has been 1194 * updated. */ 1195 if (sk == NULL) 1196 return 0; 1197 else if (sk_SSL_CIPHER_num(sk) == 0) 1198 { 1199 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1200 return 0; 1201 } 1202 return 1; 1203 } 1204 1205 /** specify the ciphers to be used by the SSL */ 1206 int SSL_set_cipher_list(SSL *s,const char *str) 1207 { 1208 STACK_OF(SSL_CIPHER) *sk; 1209 1210 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 1211 &s->cipher_list_by_id,str); 1212 /* see comment in SSL_CTX_set_cipher_list */ 1213 if (sk == NULL) 1214 return 0; 1215 else if (sk_SSL_CIPHER_num(sk) == 0) 1216 { 1217 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1218 return 0; 1219 } 1220 return 1; 1221 } 1222 1223 /* works well for SSLv2, not so good for SSLv3 */ 1224 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len) 1225 { 1226 char *end; 1227 STACK_OF(SSL_CIPHER) *sk; 1228 SSL_CIPHER *c; 1229 size_t curlen = 0; 1230 int i; 1231 1232 if ((s->session == NULL) || (s->session->ciphers == NULL) || 1233 (len < 2)) 1234 return(NULL); 1235 1236 sk=s->session->ciphers; 1237 buf[0] = '\0'; 1238 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1239 { 1240 c=sk_SSL_CIPHER_value(sk,i); 1241 end = buf + curlen; 1242 if (strlcat(buf, c->name, len) >= len || 1243 (curlen = strlcat(buf, ":", len)) >= len) 1244 { 1245 /* remove truncated cipher from list */ 1246 *end = '\0'; 1247 break; 1248 } 1249 } 1250 /* remove trailing colon */ 1251 if ((end = strrchr(buf, ':')) != NULL) 1252 *end = '\0'; 1253 return(buf); 1254 } 1255 1256 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p, 1257 int (*put_cb)(const SSL_CIPHER *, unsigned char *)) 1258 { 1259 int i,j=0; 1260 SSL_CIPHER *c; 1261 unsigned char *q; 1262 #ifndef OPENSSL_NO_KRB5 1263 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx); 1264 #endif /* OPENSSL_NO_KRB5 */ 1265 1266 if (sk == NULL) return(0); 1267 q=p; 1268 1269 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1270 { 1271 c=sk_SSL_CIPHER_value(sk,i); 1272 #ifndef OPENSSL_NO_KRB5 1273 if ((c->algorithms & SSL_KRB5) && nokrb5) 1274 continue; 1275 #endif /* OPENSSL_NO_KRB5 */ 1276 1277 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p); 1278 p+=j; 1279 } 1280 return(p-q); 1281 } 1282 1283 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1284 STACK_OF(SSL_CIPHER) **skp) 1285 { 1286 SSL_CIPHER *c; 1287 STACK_OF(SSL_CIPHER) *sk; 1288 int i,n; 1289 1290 n=ssl_put_cipher_by_char(s,NULL,NULL); 1291 if ((num%n) != 0) 1292 { 1293 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1294 return(NULL); 1295 } 1296 if ((skp == NULL) || (*skp == NULL)) 1297 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1298 else 1299 { 1300 sk= *skp; 1301 sk_SSL_CIPHER_zero(sk); 1302 } 1303 1304 for (i=0; i<num; i+=n) 1305 { 1306 c=ssl_get_cipher_by_char(s,p); 1307 p+=n; 1308 if (c != NULL) 1309 { 1310 if (!sk_SSL_CIPHER_push(sk,c)) 1311 { 1312 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1313 goto err; 1314 } 1315 } 1316 } 1317 1318 if (skp != NULL) 1319 *skp=sk; 1320 return(sk); 1321 err: 1322 if ((skp == NULL) || (*skp == NULL)) 1323 sk_SSL_CIPHER_free(sk); 1324 return(NULL); 1325 } 1326 1327 #ifndef OPENSSL_NO_TLSEXT 1328 /** return a servername extension value if provided in Client Hello, or NULL. 1329 * So far, only host_name types are defined (RFC 3546). 1330 */ 1331 1332 const char *SSL_get_servername(const SSL *s, const int type) 1333 { 1334 if (type != TLSEXT_NAMETYPE_host_name) 1335 return NULL; 1336 1337 return s->session && !s->tlsext_hostname ? 1338 s->session->tlsext_hostname : 1339 s->tlsext_hostname; 1340 } 1341 1342 int SSL_get_servername_type(const SSL *s) 1343 { 1344 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname)) 1345 return TLSEXT_NAMETYPE_host_name; 1346 return -1; 1347 } 1348 #endif 1349 1350 unsigned long SSL_SESSION_hash(const SSL_SESSION *a) 1351 { 1352 unsigned long l; 1353 1354 l=(unsigned long) 1355 ((unsigned int) a->session_id[0] )| 1356 ((unsigned int) a->session_id[1]<< 8L)| 1357 ((unsigned long)a->session_id[2]<<16L)| 1358 ((unsigned long)a->session_id[3]<<24L); 1359 return(l); 1360 } 1361 1362 /* NB: If this function (or indeed the hash function which uses a sort of 1363 * coarser function than this one) is changed, ensure 1364 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1365 * able to construct an SSL_SESSION that will collide with any existing session 1366 * with a matching session ID. */ 1367 int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b) 1368 { 1369 if (a->ssl_version != b->ssl_version) 1370 return(1); 1371 if (a->session_id_length != b->session_id_length) 1372 return(1); 1373 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1374 } 1375 1376 /* These wrapper functions should remain rather than redeclaring 1377 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1378 * variable. The reason is that the functions aren't static, they're exposed via 1379 * ssl.h. */ 1380 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *) 1381 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *) 1382 1383 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth) 1384 { 1385 SSL_CTX *ret=NULL; 1386 1387 if (meth == NULL) 1388 { 1389 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1390 return(NULL); 1391 } 1392 1393 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1394 { 1395 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1396 goto err; 1397 } 1398 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); 1399 if (ret == NULL) 1400 goto err; 1401 1402 memset(ret,0,sizeof(SSL_CTX)); 1403 1404 ret->method=meth; 1405 1406 ret->cert_store=NULL; 1407 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1408 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1409 ret->session_cache_head=NULL; 1410 ret->session_cache_tail=NULL; 1411 1412 /* We take the system default */ 1413 ret->session_timeout=meth->get_timeout(); 1414 1415 ret->new_session_cb=0; 1416 ret->remove_session_cb=0; 1417 ret->get_session_cb=0; 1418 ret->generate_session_id=0; 1419 1420 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1421 1422 ret->references=1; 1423 ret->quiet_shutdown=0; 1424 1425 /* ret->cipher=NULL;*/ 1426 /* ret->s2->challenge=NULL; 1427 ret->master_key=NULL; 1428 ret->key_arg=NULL; 1429 ret->s2->conn_id=NULL; */ 1430 1431 ret->info_callback=NULL; 1432 1433 ret->app_verify_callback=0; 1434 ret->app_verify_arg=NULL; 1435 1436 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT; 1437 ret->read_ahead=0; 1438 ret->msg_callback=0; 1439 ret->msg_callback_arg=NULL; 1440 ret->verify_mode=SSL_VERIFY_NONE; 1441 #if 0 1442 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1443 #endif 1444 ret->sid_ctx_length=0; 1445 ret->default_verify_callback=NULL; 1446 if ((ret->cert=ssl_cert_new()) == NULL) 1447 goto err; 1448 1449 ret->default_passwd_callback=0; 1450 ret->default_passwd_callback_userdata=NULL; 1451 ret->client_cert_cb=0; 1452 ret->app_gen_cookie_cb=0; 1453 ret->app_verify_cookie_cb=0; 1454 1455 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash), 1456 LHASH_COMP_FN(SSL_SESSION_cmp)); 1457 if (ret->sessions == NULL) goto err; 1458 ret->cert_store=X509_STORE_new(); 1459 if (ret->cert_store == NULL) goto err; 1460 1461 ssl_create_cipher_list(ret->method, 1462 &ret->cipher_list,&ret->cipher_list_by_id, 1463 SSL_DEFAULT_CIPHER_LIST); 1464 if (ret->cipher_list == NULL 1465 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1466 { 1467 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1468 goto err2; 1469 } 1470 1471 ret->param = X509_VERIFY_PARAM_new(); 1472 if (!ret->param) 1473 goto err; 1474 1475 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1476 { 1477 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1478 goto err2; 1479 } 1480 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1481 { 1482 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1483 goto err2; 1484 } 1485 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1486 { 1487 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1488 goto err2; 1489 } 1490 1491 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1492 goto err; 1493 1494 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 1495 1496 ret->extra_certs=NULL; 1497 ret->comp_methods=SSL_COMP_get_compression_methods(); 1498 1499 #ifndef OPENSSL_NO_TLSEXT 1500 ret->tlsext_servername_callback = 0; 1501 ret->tlsext_servername_arg = NULL; 1502 /* Setup RFC4507 ticket keys */ 1503 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0) 1504 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) 1505 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) 1506 ret->options |= SSL_OP_NO_TICKET; 1507 1508 ret->tlsext_status_cb = 0; 1509 ret->tlsext_status_arg = NULL; 1510 1511 #endif 1512 1513 return(ret); 1514 err: 1515 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1516 err2: 1517 if (ret != NULL) SSL_CTX_free(ret); 1518 return(NULL); 1519 } 1520 1521 #if 0 1522 static void SSL_COMP_free(SSL_COMP *comp) 1523 { OPENSSL_free(comp); } 1524 #endif 1525 1526 void SSL_CTX_free(SSL_CTX *a) 1527 { 1528 int i; 1529 1530 if (a == NULL) return; 1531 1532 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1533 #ifdef REF_PRINT 1534 REF_PRINT("SSL_CTX",a); 1535 #endif 1536 if (i > 0) return; 1537 #ifdef REF_CHECK 1538 if (i < 0) 1539 { 1540 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1541 abort(); /* ok */ 1542 } 1543 #endif 1544 1545 if (a->param) 1546 X509_VERIFY_PARAM_free(a->param); 1547 1548 /* 1549 * Free internal session cache. However: the remove_cb() may reference 1550 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1551 * after the sessions were flushed. 1552 * As the ex_data handling routines might also touch the session cache, 1553 * the most secure solution seems to be: empty (flush) the cache, then 1554 * free ex_data, then finally free the cache. 1555 * (See ticket [openssl.org #212].) 1556 */ 1557 if (a->sessions != NULL) 1558 SSL_CTX_flush_sessions(a,0); 1559 1560 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); 1561 1562 if (a->sessions != NULL) 1563 lh_free(a->sessions); 1564 1565 if (a->cert_store != NULL) 1566 X509_STORE_free(a->cert_store); 1567 if (a->cipher_list != NULL) 1568 sk_SSL_CIPHER_free(a->cipher_list); 1569 if (a->cipher_list_by_id != NULL) 1570 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1571 if (a->cert != NULL) 1572 ssl_cert_free(a->cert); 1573 if (a->client_CA != NULL) 1574 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1575 if (a->extra_certs != NULL) 1576 sk_X509_pop_free(a->extra_certs,X509_free); 1577 #if 0 /* This should never be done, since it removes a global database */ 1578 if (a->comp_methods != NULL) 1579 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1580 #else 1581 a->comp_methods = NULL; 1582 #endif 1583 OPENSSL_free(a); 1584 } 1585 1586 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1587 { 1588 ctx->default_passwd_callback=cb; 1589 } 1590 1591 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1592 { 1593 ctx->default_passwd_callback_userdata=u; 1594 } 1595 1596 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg) 1597 { 1598 ctx->app_verify_callback=cb; 1599 ctx->app_verify_arg=arg; 1600 } 1601 1602 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1603 { 1604 ctx->verify_mode=mode; 1605 ctx->default_verify_callback=cb; 1606 } 1607 1608 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1609 { 1610 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1611 } 1612 1613 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) 1614 { 1615 CERT_PKEY *cpk; 1616 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1617 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1618 int rsa_tmp_export,dh_tmp_export,kl; 1619 unsigned long mask,emask; 1620 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size; 1621 #ifndef OPENSSL_NO_ECDH 1622 int have_ecdh_tmp; 1623 #endif 1624 X509 *x = NULL; 1625 EVP_PKEY *ecc_pkey = NULL; 1626 int signature_nid = 0; 1627 1628 if (c == NULL) return; 1629 1630 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1631 1632 #ifndef OPENSSL_NO_RSA 1633 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1634 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1635 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1636 #else 1637 rsa_tmp=rsa_tmp_export=0; 1638 #endif 1639 #ifndef OPENSSL_NO_DH 1640 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1641 dh_tmp_export=(c->dh_tmp_cb != NULL || 1642 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1643 #else 1644 dh_tmp=dh_tmp_export=0; 1645 #endif 1646 1647 #ifndef OPENSSL_NO_ECDH 1648 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL); 1649 #endif 1650 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1651 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1652 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1653 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1654 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1655 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1656 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1657 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1658 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1659 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1660 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1661 /* FIX THIS EAY EAY EAY */ 1662 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1663 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1664 cpk= &(c->pkeys[SSL_PKEY_ECC]); 1665 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL); 1666 mask=0; 1667 emask=0; 1668 1669 #ifdef CIPHER_DEBUG 1670 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1671 rsa_tmp,rsa_tmp_export,dh_tmp, 1672 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1673 #endif 1674 1675 if (rsa_enc || (rsa_tmp && rsa_sign)) 1676 mask|=SSL_kRSA; 1677 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1678 emask|=SSL_kRSA; 1679 1680 #if 0 1681 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1682 if ( (dh_tmp || dh_rsa || dh_dsa) && 1683 (rsa_enc || rsa_sign || dsa_sign)) 1684 mask|=SSL_kEDH; 1685 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1686 (rsa_enc || rsa_sign || dsa_sign)) 1687 emask|=SSL_kEDH; 1688 #endif 1689 1690 if (dh_tmp_export) 1691 emask|=SSL_kEDH; 1692 1693 if (dh_tmp) 1694 mask|=SSL_kEDH; 1695 1696 if (dh_rsa) mask|=SSL_kDHr; 1697 if (dh_rsa_export) emask|=SSL_kDHr; 1698 1699 if (dh_dsa) mask|=SSL_kDHd; 1700 if (dh_dsa_export) emask|=SSL_kDHd; 1701 1702 if (rsa_enc || rsa_sign) 1703 { 1704 mask|=SSL_aRSA; 1705 emask|=SSL_aRSA; 1706 } 1707 1708 if (dsa_sign) 1709 { 1710 mask|=SSL_aDSS; 1711 emask|=SSL_aDSS; 1712 } 1713 1714 mask|=SSL_aNULL; 1715 emask|=SSL_aNULL; 1716 1717 #ifndef OPENSSL_NO_KRB5 1718 mask|=SSL_kKRB5|SSL_aKRB5; 1719 emask|=SSL_kKRB5|SSL_aKRB5; 1720 #endif 1721 1722 /* An ECC certificate may be usable for ECDH and/or 1723 * ECDSA cipher suites depending on the key usage extension. 1724 */ 1725 if (have_ecc_cert) 1726 { 1727 /* This call populates extension flags (ex_flags) */ 1728 x = (c->pkeys[SSL_PKEY_ECC]).x509; 1729 X509_check_purpose(x, -1, 0); 1730 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1731 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; 1732 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1733 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; 1734 ecc_pkey = X509_get_pubkey(x); 1735 ecc_pkey_size = (ecc_pkey != NULL) ? 1736 EVP_PKEY_bits(ecc_pkey) : 0; 1737 EVP_PKEY_free(ecc_pkey); 1738 if ((x->sig_alg) && (x->sig_alg->algorithm)) 1739 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 1740 #ifndef OPENSSL_NO_ECDH 1741 if (ecdh_ok) 1742 { 1743 if ((signature_nid == NID_md5WithRSAEncryption) || 1744 (signature_nid == NID_md4WithRSAEncryption) || 1745 (signature_nid == NID_md2WithRSAEncryption)) 1746 { 1747 mask|=SSL_kECDH|SSL_aRSA; 1748 if (ecc_pkey_size <= 163) 1749 emask|=SSL_kECDH|SSL_aRSA; 1750 } 1751 if (signature_nid == NID_ecdsa_with_SHA1) 1752 { 1753 mask|=SSL_kECDH|SSL_aECDSA; 1754 if (ecc_pkey_size <= 163) 1755 emask|=SSL_kECDH|SSL_aECDSA; 1756 } 1757 } 1758 #endif 1759 #ifndef OPENSSL_NO_ECDSA 1760 if (ecdsa_ok) 1761 { 1762 mask|=SSL_aECDSA; 1763 emask|=SSL_aECDSA; 1764 } 1765 #endif 1766 } 1767 1768 #ifndef OPENSSL_NO_ECDH 1769 if (have_ecdh_tmp) 1770 { 1771 mask|=SSL_kECDHE; 1772 emask|=SSL_kECDHE; 1773 } 1774 #endif 1775 c->mask=mask; 1776 c->export_mask=emask; 1777 c->valid=1; 1778 } 1779 1780 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */ 1781 #define ku_reject(x, usage) \ 1782 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) 1783 1784 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs) 1785 { 1786 unsigned long alg = cs->algorithms; 1787 EVP_PKEY *pkey = NULL; 1788 int keysize = 0; 1789 int signature_nid = 0; 1790 1791 if (SSL_C_IS_EXPORT(cs)) 1792 { 1793 /* ECDH key length in export ciphers must be <= 163 bits */ 1794 pkey = X509_get_pubkey(x); 1795 if (pkey == NULL) return 0; 1796 keysize = EVP_PKEY_bits(pkey); 1797 EVP_PKEY_free(pkey); 1798 if (keysize > 163) return 0; 1799 } 1800 1801 /* This call populates the ex_flags field correctly */ 1802 X509_check_purpose(x, -1, 0); 1803 if ((x->sig_alg) && (x->sig_alg->algorithm)) 1804 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 1805 if (alg & SSL_kECDH) 1806 { 1807 /* key usage, if present, must allow key agreement */ 1808 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) 1809 { 1810 return 0; 1811 } 1812 if (alg & SSL_aECDSA) 1813 { 1814 /* signature alg must be ECDSA */ 1815 if (signature_nid != NID_ecdsa_with_SHA1) 1816 { 1817 return 0; 1818 } 1819 } 1820 if (alg & SSL_aRSA) 1821 { 1822 /* signature alg must be RSA */ 1823 if ((signature_nid != NID_md5WithRSAEncryption) && 1824 (signature_nid != NID_md4WithRSAEncryption) && 1825 (signature_nid != NID_md2WithRSAEncryption)) 1826 { 1827 return 0; 1828 } 1829 } 1830 } 1831 else if (alg & SSL_aECDSA) 1832 { 1833 /* key usage, if present, must allow signing */ 1834 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) 1835 { 1836 return 0; 1837 } 1838 } 1839 1840 return 1; /* all checks are ok */ 1841 } 1842 1843 /* THIS NEEDS CLEANING UP */ 1844 X509 *ssl_get_server_send_cert(SSL *s) 1845 { 1846 unsigned long alg,mask,kalg; 1847 CERT *c; 1848 int i,is_export; 1849 1850 c=s->cert; 1851 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 1852 alg=s->s3->tmp.new_cipher->algorithms; 1853 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 1854 mask=is_export?c->export_mask:c->mask; 1855 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1856 1857 if (kalg & SSL_kECDH) 1858 { 1859 /* we don't need to look at SSL_kECDHE 1860 * since no certificate is needed for 1861 * anon ECDH and for authenticated 1862 * ECDHE, the check for the auth 1863 * algorithm will set i correctly 1864 * NOTE: For ECDH-RSA, we need an ECC 1865 * not an RSA cert but for ECDHE-RSA 1866 * we need an RSA cert. Placing the 1867 * checks for SSL_kECDH before RSA 1868 * checks ensures the correct cert is chosen. 1869 */ 1870 i=SSL_PKEY_ECC; 1871 } 1872 else if (kalg & SSL_aECDSA) 1873 { 1874 i=SSL_PKEY_ECC; 1875 } 1876 else if (kalg & SSL_kDHr) 1877 i=SSL_PKEY_DH_RSA; 1878 else if (kalg & SSL_kDHd) 1879 i=SSL_PKEY_DH_DSA; 1880 else if (kalg & SSL_aDSS) 1881 i=SSL_PKEY_DSA_SIGN; 1882 else if (kalg & SSL_aRSA) 1883 { 1884 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1885 i=SSL_PKEY_RSA_SIGN; 1886 else 1887 i=SSL_PKEY_RSA_ENC; 1888 } 1889 else if (kalg & SSL_aKRB5) 1890 { 1891 /* VRS something else here? */ 1892 return(NULL); 1893 } 1894 else /* if (kalg & SSL_aNULL) */ 1895 { 1896 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR); 1897 return(NULL); 1898 } 1899 if (c->pkeys[i].x509 == NULL) return(NULL); 1900 1901 return(c->pkeys[i].x509); 1902 } 1903 1904 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher) 1905 { 1906 unsigned long alg; 1907 CERT *c; 1908 1909 alg=cipher->algorithms; 1910 c=s->cert; 1911 1912 if ((alg & SSL_aDSS) && 1913 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 1914 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 1915 else if (alg & SSL_aRSA) 1916 { 1917 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 1918 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 1919 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 1920 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 1921 else 1922 return(NULL); 1923 } 1924 else if ((alg & SSL_aECDSA) && 1925 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 1926 return(c->pkeys[SSL_PKEY_ECC].privatekey); 1927 else /* if (alg & SSL_aNULL) */ 1928 { 1929 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR); 1930 return(NULL); 1931 } 1932 } 1933 1934 void ssl_update_cache(SSL *s,int mode) 1935 { 1936 int i; 1937 1938 /* If the session_id_length is 0, we are not supposed to cache it, 1939 * and it would be rather hard to do anyway :-) */ 1940 if (s->session->session_id_length == 0) return; 1941 1942 i=s->ctx->session_cache_mode; 1943 if ((i & mode) && (!s->hit) 1944 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 1945 || SSL_CTX_add_session(s->ctx,s->session)) 1946 && (s->ctx->new_session_cb != NULL)) 1947 { 1948 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 1949 if (!s->ctx->new_session_cb(s,s->session)) 1950 SSL_SESSION_free(s->session); 1951 } 1952 1953 /* auto flush every 255 connections */ 1954 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 1955 ((i & mode) == mode)) 1956 { 1957 if ( (((mode & SSL_SESS_CACHE_CLIENT) 1958 ?s->ctx->stats.sess_connect_good 1959 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff) 1960 { 1961 SSL_CTX_flush_sessions(s->ctx,(unsigned long)time(NULL)); 1962 } 1963 } 1964 } 1965 1966 SSL_METHOD *SSL_get_ssl_method(SSL *s) 1967 { 1968 return(s->method); 1969 } 1970 1971 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth) 1972 { 1973 int conn= -1; 1974 int ret=1; 1975 1976 if (s->method != meth) 1977 { 1978 if (s->handshake_func != NULL) 1979 conn=(s->handshake_func == s->method->ssl_connect); 1980 1981 if (s->method->version == meth->version) 1982 s->method=meth; 1983 else 1984 { 1985 s->method->ssl_free(s); 1986 s->method=meth; 1987 ret=s->method->ssl_new(s); 1988 } 1989 1990 if (conn == 1) 1991 s->handshake_func=meth->ssl_connect; 1992 else if (conn == 0) 1993 s->handshake_func=meth->ssl_accept; 1994 } 1995 return(ret); 1996 } 1997 1998 int SSL_get_error(const SSL *s,int i) 1999 { 2000 int reason; 2001 unsigned long l; 2002 BIO *bio; 2003 2004 if (i > 0) return(SSL_ERROR_NONE); 2005 2006 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2007 * etc, where we do encode the error */ 2008 if ((l=ERR_peek_error()) != 0) 2009 { 2010 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2011 return(SSL_ERROR_SYSCALL); 2012 else 2013 return(SSL_ERROR_SSL); 2014 } 2015 2016 if ((i < 0) && SSL_want_read(s)) 2017 { 2018 bio=SSL_get_rbio(s); 2019 if (BIO_should_read(bio)) 2020 return(SSL_ERROR_WANT_READ); 2021 else if (BIO_should_write(bio)) 2022 /* This one doesn't make too much sense ... We never try 2023 * to write to the rbio, and an application program where 2024 * rbio and wbio are separate couldn't even know what it 2025 * should wait for. 2026 * However if we ever set s->rwstate incorrectly 2027 * (so that we have SSL_want_read(s) instead of 2028 * SSL_want_write(s)) and rbio and wbio *are* the same, 2029 * this test works around that bug; so it might be safer 2030 * to keep it. */ 2031 return(SSL_ERROR_WANT_WRITE); 2032 else if (BIO_should_io_special(bio)) 2033 { 2034 reason=BIO_get_retry_reason(bio); 2035 if (reason == BIO_RR_CONNECT) 2036 return(SSL_ERROR_WANT_CONNECT); 2037 else if (reason == BIO_RR_ACCEPT) 2038 return(SSL_ERROR_WANT_ACCEPT); 2039 else 2040 return(SSL_ERROR_SYSCALL); /* unknown */ 2041 } 2042 } 2043 2044 if ((i < 0) && SSL_want_write(s)) 2045 { 2046 bio=SSL_get_wbio(s); 2047 if (BIO_should_write(bio)) 2048 return(SSL_ERROR_WANT_WRITE); 2049 else if (BIO_should_read(bio)) 2050 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 2051 return(SSL_ERROR_WANT_READ); 2052 else if (BIO_should_io_special(bio)) 2053 { 2054 reason=BIO_get_retry_reason(bio); 2055 if (reason == BIO_RR_CONNECT) 2056 return(SSL_ERROR_WANT_CONNECT); 2057 else if (reason == BIO_RR_ACCEPT) 2058 return(SSL_ERROR_WANT_ACCEPT); 2059 else 2060 return(SSL_ERROR_SYSCALL); 2061 } 2062 } 2063 if ((i < 0) && SSL_want_x509_lookup(s)) 2064 { 2065 return(SSL_ERROR_WANT_X509_LOOKUP); 2066 } 2067 2068 if (i == 0) 2069 { 2070 if (s->version == SSL2_VERSION) 2071 { 2072 /* assume it is the socket being closed */ 2073 return(SSL_ERROR_ZERO_RETURN); 2074 } 2075 else 2076 { 2077 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2078 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2079 return(SSL_ERROR_ZERO_RETURN); 2080 } 2081 } 2082 return(SSL_ERROR_SYSCALL); 2083 } 2084 2085 int SSL_do_handshake(SSL *s) 2086 { 2087 int ret=1; 2088 2089 if (s->handshake_func == NULL) 2090 { 2091 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 2092 return(-1); 2093 } 2094 2095 s->method->ssl_renegotiate_check(s); 2096 2097 if (SSL_in_init(s) || SSL_in_before(s)) 2098 { 2099 ret=s->handshake_func(s); 2100 } 2101 return(ret); 2102 } 2103 2104 /* For the next 2 functions, SSL_clear() sets shutdown and so 2105 * one of these calls will reset it */ 2106 void SSL_set_accept_state(SSL *s) 2107 { 2108 s->server=1; 2109 s->shutdown=0; 2110 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 2111 s->handshake_func=s->method->ssl_accept; 2112 /* clear the current cipher */ 2113 ssl_clear_cipher_ctx(s); 2114 } 2115 2116 void SSL_set_connect_state(SSL *s) 2117 { 2118 s->server=0; 2119 s->shutdown=0; 2120 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 2121 s->handshake_func=s->method->ssl_connect; 2122 /* clear the current cipher */ 2123 ssl_clear_cipher_ctx(s); 2124 } 2125 2126 int ssl_undefined_function(SSL *s) 2127 { 2128 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2129 return(0); 2130 } 2131 2132 int ssl_undefined_void_function(void) 2133 { 2134 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2135 return(0); 2136 } 2137 2138 int ssl_undefined_const_function(const SSL *s) 2139 { 2140 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2141 return(0); 2142 } 2143 2144 SSL_METHOD *ssl_bad_method(int ver) 2145 { 2146 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2147 return(NULL); 2148 } 2149 2150 const char *SSL_get_version(const SSL *s) 2151 { 2152 if (s->version == TLS1_VERSION) 2153 return("TLSv1"); 2154 else if (s->version == SSL3_VERSION) 2155 return("SSLv3"); 2156 else if (s->version == SSL2_VERSION) 2157 return("SSLv2"); 2158 else 2159 return("unknown"); 2160 } 2161 2162 SSL *SSL_dup(SSL *s) 2163 { 2164 STACK_OF(X509_NAME) *sk; 2165 X509_NAME *xn; 2166 SSL *ret; 2167 int i; 2168 2169 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2170 return(NULL); 2171 2172 ret->version = s->version; 2173 ret->type = s->type; 2174 ret->method = s->method; 2175 2176 if (s->session != NULL) 2177 { 2178 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 2179 SSL_copy_session_id(ret,s); 2180 } 2181 else 2182 { 2183 /* No session has been established yet, so we have to expect 2184 * that s->cert or ret->cert will be changed later -- 2185 * they should not both point to the same object, 2186 * and thus we can't use SSL_copy_session_id. */ 2187 2188 ret->method->ssl_free(ret); 2189 ret->method = s->method; 2190 ret->method->ssl_new(ret); 2191 2192 if (s->cert != NULL) 2193 { 2194 if (ret->cert != NULL) 2195 { 2196 ssl_cert_free(ret->cert); 2197 } 2198 ret->cert = ssl_cert_dup(s->cert); 2199 if (ret->cert == NULL) 2200 goto err; 2201 } 2202 2203 SSL_set_session_id_context(ret, 2204 s->sid_ctx, s->sid_ctx_length); 2205 } 2206 2207 ret->options=s->options; 2208 ret->mode=s->mode; 2209 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s)); 2210 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 2211 ret->msg_callback = s->msg_callback; 2212 ret->msg_callback_arg = s->msg_callback_arg; 2213 SSL_set_verify(ret,SSL_get_verify_mode(s), 2214 SSL_get_verify_callback(s)); 2215 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 2216 ret->generate_session_id = s->generate_session_id; 2217 2218 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 2219 2220 ret->debug=s->debug; 2221 2222 /* copy app data, a little dangerous perhaps */ 2223 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) 2224 goto err; 2225 2226 /* setup rbio, and wbio */ 2227 if (s->rbio != NULL) 2228 { 2229 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2230 goto err; 2231 } 2232 if (s->wbio != NULL) 2233 { 2234 if (s->wbio != s->rbio) 2235 { 2236 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2237 goto err; 2238 } 2239 else 2240 ret->wbio=ret->rbio; 2241 } 2242 ret->rwstate = s->rwstate; 2243 ret->in_handshake = s->in_handshake; 2244 ret->handshake_func = s->handshake_func; 2245 ret->server = s->server; 2246 ret->new_session = s->new_session; 2247 ret->quiet_shutdown = s->quiet_shutdown; 2248 ret->shutdown=s->shutdown; 2249 ret->state=s->state; /* SSL_dup does not really work at any state, though */ 2250 ret->rstate=s->rstate; 2251 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */ 2252 ret->hit=s->hit; 2253 2254 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2255 2256 /* dup the cipher_list and cipher_list_by_id stacks */ 2257 if (s->cipher_list != NULL) 2258 { 2259 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2260 goto err; 2261 } 2262 if (s->cipher_list_by_id != NULL) 2263 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 2264 == NULL) 2265 goto err; 2266 2267 /* Dup the client_CA list */ 2268 if (s->client_CA != NULL) 2269 { 2270 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 2271 ret->client_CA=sk; 2272 for (i=0; i<sk_X509_NAME_num(sk); i++) 2273 { 2274 xn=sk_X509_NAME_value(sk,i); 2275 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 2276 { 2277 X509_NAME_free(xn); 2278 goto err; 2279 } 2280 } 2281 } 2282 2283 if (0) 2284 { 2285 err: 2286 if (ret != NULL) SSL_free(ret); 2287 ret=NULL; 2288 } 2289 return(ret); 2290 } 2291 2292 void ssl_clear_cipher_ctx(SSL *s) 2293 { 2294 if (s->enc_read_ctx != NULL) 2295 { 2296 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 2297 OPENSSL_free(s->enc_read_ctx); 2298 s->enc_read_ctx=NULL; 2299 } 2300 if (s->enc_write_ctx != NULL) 2301 { 2302 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 2303 OPENSSL_free(s->enc_write_ctx); 2304 s->enc_write_ctx=NULL; 2305 } 2306 #ifndef OPENSSL_NO_COMP 2307 if (s->expand != NULL) 2308 { 2309 COMP_CTX_free(s->expand); 2310 s->expand=NULL; 2311 } 2312 if (s->compress != NULL) 2313 { 2314 COMP_CTX_free(s->compress); 2315 s->compress=NULL; 2316 } 2317 #endif 2318 } 2319 2320 /* Fix this function so that it takes an optional type parameter */ 2321 X509 *SSL_get_certificate(const SSL *s) 2322 { 2323 if (s->cert != NULL) 2324 return(s->cert->key->x509); 2325 else 2326 return(NULL); 2327 } 2328 2329 /* Fix this function so that it takes an optional type parameter */ 2330 EVP_PKEY *SSL_get_privatekey(SSL *s) 2331 { 2332 if (s->cert != NULL) 2333 return(s->cert->key->privatekey); 2334 else 2335 return(NULL); 2336 } 2337 2338 SSL_CIPHER *SSL_get_current_cipher(const SSL *s) 2339 { 2340 if ((s->session != NULL) && (s->session->cipher != NULL)) 2341 return(s->session->cipher); 2342 return(NULL); 2343 } 2344 #ifdef OPENSSL_NO_COMP 2345 const void *SSL_get_current_compression(SSL *s) 2346 { 2347 return NULL; 2348 } 2349 const void *SSL_get_current_expansion(SSL *s) 2350 { 2351 return NULL; 2352 } 2353 #else 2354 2355 const COMP_METHOD *SSL_get_current_compression(SSL *s) 2356 { 2357 if (s->compress != NULL) 2358 return(s->compress->meth); 2359 return(NULL); 2360 } 2361 2362 const COMP_METHOD *SSL_get_current_expansion(SSL *s) 2363 { 2364 if (s->expand != NULL) 2365 return(s->expand->meth); 2366 return(NULL); 2367 } 2368 #endif 2369 2370 int ssl_init_wbio_buffer(SSL *s,int push) 2371 { 2372 BIO *bbio; 2373 2374 if (s->bbio == NULL) 2375 { 2376 bbio=BIO_new(BIO_f_buffer()); 2377 if (bbio == NULL) return(0); 2378 s->bbio=bbio; 2379 } 2380 else 2381 { 2382 bbio=s->bbio; 2383 if (s->bbio == s->wbio) 2384 s->wbio=BIO_pop(s->wbio); 2385 } 2386 (void)BIO_reset(bbio); 2387 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2388 if (!BIO_set_read_buffer_size(bbio,1)) 2389 { 2390 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 2391 return(0); 2392 } 2393 if (push) 2394 { 2395 if (s->wbio != bbio) 2396 s->wbio=BIO_push(bbio,s->wbio); 2397 } 2398 else 2399 { 2400 if (s->wbio == bbio) 2401 s->wbio=BIO_pop(bbio); 2402 } 2403 return(1); 2404 } 2405 2406 void ssl_free_wbio_buffer(SSL *s) 2407 { 2408 if (s->bbio == NULL) return; 2409 2410 if (s->bbio == s->wbio) 2411 { 2412 /* remove buffering */ 2413 s->wbio=BIO_pop(s->wbio); 2414 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */ 2415 assert(s->wbio != NULL); 2416 #endif 2417 } 2418 BIO_free(s->bbio); 2419 s->bbio=NULL; 2420 } 2421 2422 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 2423 { 2424 ctx->quiet_shutdown=mode; 2425 } 2426 2427 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2428 { 2429 return(ctx->quiet_shutdown); 2430 } 2431 2432 void SSL_set_quiet_shutdown(SSL *s,int mode) 2433 { 2434 s->quiet_shutdown=mode; 2435 } 2436 2437 int SSL_get_quiet_shutdown(const SSL *s) 2438 { 2439 return(s->quiet_shutdown); 2440 } 2441 2442 void SSL_set_shutdown(SSL *s,int mode) 2443 { 2444 s->shutdown=mode; 2445 } 2446 2447 int SSL_get_shutdown(const SSL *s) 2448 { 2449 return(s->shutdown); 2450 } 2451 2452 int SSL_version(const SSL *s) 2453 { 2454 return(s->version); 2455 } 2456 2457 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) 2458 { 2459 return(ssl->ctx); 2460 } 2461 2462 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2463 { 2464 if (ssl->ctx == ctx) 2465 return ssl->ctx; 2466 #ifndef OPENSSL_NO_TLSEXT 2467 if (ctx == NULL) 2468 ctx = ssl->initial_ctx; 2469 #endif 2470 if (ssl->cert != NULL) 2471 ssl_cert_free(ssl->cert); 2472 ssl->cert = ssl_cert_dup(ctx->cert); 2473 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 2474 if (ssl->ctx != NULL) 2475 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2476 ssl->ctx = ctx; 2477 return(ssl->ctx); 2478 } 2479 2480 #ifndef OPENSSL_NO_STDIO 2481 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2482 { 2483 return(X509_STORE_set_default_paths(ctx->cert_store)); 2484 } 2485 2486 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2487 const char *CApath) 2488 { 2489 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 2490 } 2491 #endif 2492 2493 void SSL_set_info_callback(SSL *ssl, 2494 void (*cb)(const SSL *ssl,int type,int val)) 2495 { 2496 ssl->info_callback=cb; 2497 } 2498 2499 /* One compiler (Diab DCC) doesn't like argument names in returned 2500 function pointer. */ 2501 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/) 2502 { 2503 return ssl->info_callback; 2504 } 2505 2506 int SSL_state(const SSL *ssl) 2507 { 2508 return(ssl->state); 2509 } 2510 2511 void SSL_set_verify_result(SSL *ssl,long arg) 2512 { 2513 ssl->verify_result=arg; 2514 } 2515 2516 long SSL_get_verify_result(const SSL *ssl) 2517 { 2518 return(ssl->verify_result); 2519 } 2520 2521 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2522 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2523 { 2524 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2525 new_func, dup_func, free_func); 2526 } 2527 2528 int SSL_set_ex_data(SSL *s,int idx,void *arg) 2529 { 2530 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2531 } 2532 2533 void *SSL_get_ex_data(const SSL *s,int idx) 2534 { 2535 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2536 } 2537 2538 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2539 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2540 { 2541 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2542 new_func, dup_func, free_func); 2543 } 2544 2545 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 2546 { 2547 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2548 } 2549 2550 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx) 2551 { 2552 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2553 } 2554 2555 int ssl_ok(SSL *s) 2556 { 2557 return(1); 2558 } 2559 2560 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2561 { 2562 return(ctx->cert_store); 2563 } 2564 2565 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 2566 { 2567 if (ctx->cert_store != NULL) 2568 X509_STORE_free(ctx->cert_store); 2569 ctx->cert_store=store; 2570 } 2571 2572 int SSL_want(const SSL *s) 2573 { 2574 return(s->rwstate); 2575 } 2576 2577 /*! 2578 * \brief Set the callback for generating temporary RSA keys. 2579 * \param ctx the SSL context. 2580 * \param cb the callback 2581 */ 2582 2583 #ifndef OPENSSL_NO_RSA 2584 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2585 int is_export, 2586 int keylength)) 2587 { 2588 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2589 } 2590 2591 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2592 int is_export, 2593 int keylength)) 2594 { 2595 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2596 } 2597 #endif 2598 2599 #ifdef DOXYGEN 2600 /*! 2601 * \brief The RSA temporary key callback function. 2602 * \param ssl the SSL session. 2603 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2604 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2605 * of the required key in bits. 2606 * \return the temporary RSA key. 2607 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2608 */ 2609 2610 RSA *cb(SSL *ssl,int is_export,int keylength) 2611 {} 2612 #endif 2613 2614 /*! 2615 * \brief Set the callback for generating temporary DH keys. 2616 * \param ctx the SSL context. 2617 * \param dh the callback 2618 */ 2619 2620 #ifndef OPENSSL_NO_DH 2621 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2622 int keylength)) 2623 { 2624 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2625 } 2626 2627 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2628 int keylength)) 2629 { 2630 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2631 } 2632 #endif 2633 2634 #ifndef OPENSSL_NO_ECDH 2635 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2636 int keylength)) 2637 { 2638 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2639 } 2640 2641 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2642 int keylength)) 2643 { 2644 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2645 } 2646 #endif 2647 2648 2649 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)) 2650 { 2651 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2652 } 2653 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)) 2654 { 2655 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2656 } 2657 2658 2659 2660 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16) 2661 #include "../crypto/bio/bss_file.c" 2662 #endif 2663 2664 IMPLEMENT_STACK_OF(SSL_CIPHER) 2665 IMPLEMENT_STACK_OF(SSL_COMP) 2666