1 /*! \file ssl/ssl_lib.c 2 * \brief Version independent SSL functions. 3 */ 4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 5 * All rights reserved. 6 * 7 * This package is an SSL implementation written 8 * by Eric Young (eay@cryptsoft.com). 9 * The implementation was written so as to conform with Netscapes SSL. 10 * 11 * This library is free for commercial and non-commercial use as long as 12 * the following conditions are aheared to. The following conditions 13 * apply to all code found in this distribution, be it the RC4, RSA, 14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 15 * included with this distribution is covered by the same copyright terms 16 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 17 * 18 * Copyright remains Eric Young's, and as such any Copyright notices in 19 * the code are not to be removed. 20 * If this package is used in a product, Eric Young should be given attribution 21 * as the author of the parts of the library used. 22 * This can be in the form of a textual message at program startup or 23 * in documentation (online or textual) provided with the package. 24 * 25 * Redistribution and use in source and binary forms, with or without 26 * modification, are permitted provided that the following conditions 27 * are met: 28 * 1. Redistributions of source code must retain the copyright 29 * notice, this list of conditions and the following disclaimer. 30 * 2. Redistributions in binary form must reproduce the above copyright 31 * notice, this list of conditions and the following disclaimer in the 32 * documentation and/or other materials provided with the distribution. 33 * 3. All advertising materials mentioning features or use of this software 34 * must display the following acknowledgement: 35 * "This product includes cryptographic software written by 36 * Eric Young (eay@cryptsoft.com)" 37 * The word 'cryptographic' can be left out if the rouines from the library 38 * being used are not cryptographic related :-). 39 * 4. If you include any Windows specific code (or a derivative thereof) from 40 * the apps directory (application code) you must include an acknowledgement: 41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 42 * 43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53 * SUCH DAMAGE. 54 * 55 * The licence and distribution terms for any publically available version or 56 * derivative of this code cannot be changed. i.e. this code cannot simply be 57 * copied and put under another distribution licence 58 * [including the GNU Public Licence.] 59 */ 60 /* ==================================================================== 61 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. 62 * 63 * Redistribution and use in source and binary forms, with or without 64 * modification, are permitted provided that the following conditions 65 * are met: 66 * 67 * 1. Redistributions of source code must retain the above copyright 68 * notice, this list of conditions and the following disclaimer. 69 * 70 * 2. Redistributions in binary form must reproduce the above copyright 71 * notice, this list of conditions and the following disclaimer in 72 * the documentation and/or other materials provided with the 73 * distribution. 74 * 75 * 3. All advertising materials mentioning features or use of this 76 * software must display the following acknowledgment: 77 * "This product includes software developed by the OpenSSL Project 78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 79 * 80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 81 * endorse or promote products derived from this software without 82 * prior written permission. For written permission, please contact 83 * openssl-core@openssl.org. 84 * 85 * 5. Products derived from this software may not be called "OpenSSL" 86 * nor may "OpenSSL" appear in their names without prior written 87 * permission of the OpenSSL Project. 88 * 89 * 6. Redistributions of any form whatsoever must retain the following 90 * acknowledgment: 91 * "This product includes software developed by the OpenSSL Project 92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 93 * 94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 105 * OF THE POSSIBILITY OF SUCH DAMAGE. 106 * ==================================================================== 107 * 108 * This product includes cryptographic software written by Eric Young 109 * (eay@cryptsoft.com). This product includes software written by Tim 110 * Hudson (tjh@cryptsoft.com). 111 * 112 */ 113 /* ==================================================================== 114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 115 * ECC cipher suite support in OpenSSL originally developed by 116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. 117 */ 118 119 #ifdef REF_CHECK 120 # include <assert.h> 121 #endif 122 #include <stdio.h> 123 #include "ssl_locl.h" 124 #include "kssl_lcl.h" 125 #include <openssl/objects.h> 126 #include <openssl/lhash.h> 127 #include <openssl/x509v3.h> 128 #include <openssl/rand.h> 129 #include <openssl/ocsp.h> 130 #ifndef OPENSSL_NO_DH 131 #include <openssl/dh.h> 132 #endif 133 #ifndef OPENSSL_NO_ENGINE 134 #include <openssl/engine.h> 135 #endif 136 137 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 if (s->ctx) SSL_CTX_free(s->ctx); 512 #ifndef OPENSSL_NO_TLSEXT 513 if (s->tlsext_hostname) 514 OPENSSL_free(s->tlsext_hostname); 515 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx); 516 if (s->tlsext_ocsp_exts) 517 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, 518 X509_EXTENSION_free); 519 if (s->tlsext_ocsp_ids) 520 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); 521 if (s->tlsext_ocsp_resp) 522 OPENSSL_free(s->tlsext_ocsp_resp); 523 #endif 524 if (s->client_CA != NULL) 525 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free); 526 527 if (s->method != NULL) s->method->ssl_free(s); 528 529 #ifndef OPENSSL_NO_KRB5 530 if (s->kssl_ctx != NULL) 531 kssl_ctx_free(s->kssl_ctx); 532 #endif /* OPENSSL_NO_KRB5 */ 533 534 OPENSSL_free(s); 535 } 536 537 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio) 538 { 539 /* If the output buffering BIO is still in place, remove it 540 */ 541 if (s->bbio != NULL) 542 { 543 if (s->wbio == s->bbio) 544 { 545 s->wbio=s->wbio->next_bio; 546 s->bbio->next_bio=NULL; 547 } 548 } 549 if ((s->rbio != NULL) && (s->rbio != rbio)) 550 BIO_free_all(s->rbio); 551 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 552 BIO_free_all(s->wbio); 553 s->rbio=rbio; 554 s->wbio=wbio; 555 } 556 557 BIO *SSL_get_rbio(const SSL *s) 558 { return(s->rbio); } 559 560 BIO *SSL_get_wbio(const SSL *s) 561 { return(s->wbio); } 562 563 int SSL_get_fd(const SSL *s) 564 { 565 return(SSL_get_rfd(s)); 566 } 567 568 int SSL_get_rfd(const SSL *s) 569 { 570 int ret= -1; 571 BIO *b,*r; 572 573 b=SSL_get_rbio(s); 574 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 575 if (r != NULL) 576 BIO_get_fd(r,&ret); 577 return(ret); 578 } 579 580 int SSL_get_wfd(const SSL *s) 581 { 582 int ret= -1; 583 BIO *b,*r; 584 585 b=SSL_get_wbio(s); 586 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 587 if (r != NULL) 588 BIO_get_fd(r,&ret); 589 return(ret); 590 } 591 592 #ifndef OPENSSL_NO_SOCK 593 int SSL_set_fd(SSL *s,int fd) 594 { 595 int ret=0; 596 BIO *bio=NULL; 597 598 bio=BIO_new(BIO_s_socket()); 599 600 if (bio == NULL) 601 { 602 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 603 goto err; 604 } 605 BIO_set_fd(bio,fd,BIO_NOCLOSE); 606 SSL_set_bio(s,bio,bio); 607 ret=1; 608 err: 609 return(ret); 610 } 611 612 int SSL_set_wfd(SSL *s,int fd) 613 { 614 int ret=0; 615 BIO *bio=NULL; 616 617 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 618 || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 619 { 620 bio=BIO_new(BIO_s_socket()); 621 622 if (bio == NULL) 623 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 624 BIO_set_fd(bio,fd,BIO_NOCLOSE); 625 SSL_set_bio(s,SSL_get_rbio(s),bio); 626 } 627 else 628 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 629 ret=1; 630 err: 631 return(ret); 632 } 633 634 int SSL_set_rfd(SSL *s,int fd) 635 { 636 int ret=0; 637 BIO *bio=NULL; 638 639 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 640 || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 641 { 642 bio=BIO_new(BIO_s_socket()); 643 644 if (bio == NULL) 645 { 646 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 647 goto err; 648 } 649 BIO_set_fd(bio,fd,BIO_NOCLOSE); 650 SSL_set_bio(s,bio,SSL_get_wbio(s)); 651 } 652 else 653 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 654 ret=1; 655 err: 656 return(ret); 657 } 658 #endif 659 660 661 /* return length of latest Finished message we sent, copy to 'buf' */ 662 size_t SSL_get_finished(const SSL *s, void *buf, size_t count) 663 { 664 size_t ret = 0; 665 666 if (s->s3 != NULL) 667 { 668 ret = s->s3->tmp.finish_md_len; 669 if (count > ret) 670 count = ret; 671 memcpy(buf, s->s3->tmp.finish_md, count); 672 } 673 return ret; 674 } 675 676 /* return length of latest Finished message we expected, copy to 'buf' */ 677 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) 678 { 679 size_t ret = 0; 680 681 if (s->s3 != NULL) 682 { 683 ret = s->s3->tmp.peer_finish_md_len; 684 if (count > ret) 685 count = ret; 686 memcpy(buf, s->s3->tmp.peer_finish_md, count); 687 } 688 return ret; 689 } 690 691 692 int SSL_get_verify_mode(const SSL *s) 693 { 694 return(s->verify_mode); 695 } 696 697 int SSL_get_verify_depth(const SSL *s) 698 { 699 return X509_VERIFY_PARAM_get_depth(s->param); 700 } 701 702 int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *) 703 { 704 return(s->verify_callback); 705 } 706 707 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) 708 { 709 return(ctx->verify_mode); 710 } 711 712 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) 713 { 714 return X509_VERIFY_PARAM_get_depth(ctx->param); 715 } 716 717 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *) 718 { 719 return(ctx->default_verify_callback); 720 } 721 722 void SSL_set_verify(SSL *s,int mode, 723 int (*callback)(int ok,X509_STORE_CTX *ctx)) 724 { 725 s->verify_mode=mode; 726 if (callback != NULL) 727 s->verify_callback=callback; 728 } 729 730 void SSL_set_verify_depth(SSL *s,int depth) 731 { 732 X509_VERIFY_PARAM_set_depth(s->param, depth); 733 } 734 735 void SSL_set_read_ahead(SSL *s,int yes) 736 { 737 s->read_ahead=yes; 738 } 739 740 int SSL_get_read_ahead(const SSL *s) 741 { 742 return(s->read_ahead); 743 } 744 745 int SSL_pending(const SSL *s) 746 { 747 /* SSL_pending cannot work properly if read-ahead is enabled 748 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), 749 * and it is impossible to fix since SSL_pending cannot report 750 * errors that may be observed while scanning the new data. 751 * (Note that SSL_pending() is often used as a boolean value, 752 * so we'd better not return -1.) 753 */ 754 return(s->method->ssl_pending(s)); 755 } 756 757 X509 *SSL_get_peer_certificate(const SSL *s) 758 { 759 X509 *r; 760 761 if ((s == NULL) || (s->session == NULL)) 762 r=NULL; 763 else 764 r=s->session->peer; 765 766 if (r == NULL) return(r); 767 768 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 769 770 return(r); 771 } 772 773 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) 774 { 775 STACK_OF(X509) *r; 776 777 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 778 r=NULL; 779 else 780 r=s->session->sess_cert->cert_chain; 781 782 /* If we are a client, cert_chain includes the peer's own 783 * certificate; if we are a server, it does not. */ 784 785 return(r); 786 } 787 788 /* Now in theory, since the calling process own 't' it should be safe to 789 * modify. We need to be able to read f without being hassled */ 790 void SSL_copy_session_id(SSL *t,const SSL *f) 791 { 792 CERT *tmp; 793 794 /* Do we need to to SSL locking? */ 795 SSL_set_session(t,SSL_get_session(f)); 796 797 /* what if we are setup as SSLv2 but want to talk SSLv3 or 798 * vice-versa */ 799 if (t->method != f->method) 800 { 801 t->method->ssl_free(t); /* cleanup current */ 802 t->method=f->method; /* change method */ 803 t->method->ssl_new(t); /* setup new */ 804 } 805 806 tmp=t->cert; 807 if (f->cert != NULL) 808 { 809 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 810 t->cert=f->cert; 811 } 812 else 813 t->cert=NULL; 814 if (tmp != NULL) ssl_cert_free(tmp); 815 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length); 816 } 817 818 /* Fix this so it checks all the valid key/cert options */ 819 int SSL_CTX_check_private_key(const SSL_CTX *ctx) 820 { 821 if ( (ctx == NULL) || 822 (ctx->cert == NULL) || 823 (ctx->cert->key->x509 == NULL)) 824 { 825 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 826 return(0); 827 } 828 if (ctx->cert->key->privatekey == NULL) 829 { 830 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 831 return(0); 832 } 833 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 834 } 835 836 /* Fix this function so that it takes an optional type parameter */ 837 int SSL_check_private_key(const SSL *ssl) 838 { 839 if (ssl == NULL) 840 { 841 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 842 return(0); 843 } 844 if (ssl->cert == NULL) 845 { 846 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 847 return 0; 848 } 849 if (ssl->cert->key->x509 == NULL) 850 { 851 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 852 return(0); 853 } 854 if (ssl->cert->key->privatekey == NULL) 855 { 856 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 857 return(0); 858 } 859 return(X509_check_private_key(ssl->cert->key->x509, 860 ssl->cert->key->privatekey)); 861 } 862 863 int SSL_accept(SSL *s) 864 { 865 if (s->handshake_func == 0) 866 /* Not properly initialized yet */ 867 SSL_set_accept_state(s); 868 869 return(s->method->ssl_accept(s)); 870 } 871 872 int SSL_connect(SSL *s) 873 { 874 if (s->handshake_func == 0) 875 /* Not properly initialized yet */ 876 SSL_set_connect_state(s); 877 878 return(s->method->ssl_connect(s)); 879 } 880 881 long SSL_get_default_timeout(const SSL *s) 882 { 883 return(s->method->get_timeout()); 884 } 885 886 int SSL_read(SSL *s,void *buf,int num) 887 { 888 if (s->handshake_func == 0) 889 { 890 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 891 return -1; 892 } 893 894 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 895 { 896 s->rwstate=SSL_NOTHING; 897 return(0); 898 } 899 return(s->method->ssl_read(s,buf,num)); 900 } 901 902 int SSL_peek(SSL *s,void *buf,int num) 903 { 904 if (s->handshake_func == 0) 905 { 906 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); 907 return -1; 908 } 909 910 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 911 { 912 return(0); 913 } 914 return(s->method->ssl_peek(s,buf,num)); 915 } 916 917 int SSL_write(SSL *s,const void *buf,int num) 918 { 919 if (s->handshake_func == 0) 920 { 921 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 922 return -1; 923 } 924 925 if (s->shutdown & SSL_SENT_SHUTDOWN) 926 { 927 s->rwstate=SSL_NOTHING; 928 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 929 return(-1); 930 } 931 return(s->method->ssl_write(s,buf,num)); 932 } 933 934 int SSL_shutdown(SSL *s) 935 { 936 /* Note that this function behaves differently from what one might 937 * expect. Return values are 0 for no success (yet), 938 * 1 for success; but calling it once is usually not enough, 939 * even if blocking I/O is used (see ssl3_shutdown). 940 */ 941 942 if (s->handshake_func == 0) 943 { 944 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 945 return -1; 946 } 947 948 if ((s != NULL) && !SSL_in_init(s)) 949 return(s->method->ssl_shutdown(s)); 950 else 951 return(1); 952 } 953 954 int SSL_renegotiate(SSL *s) 955 { 956 if (s->new_session == 0) 957 { 958 s->new_session=1; 959 } 960 return(s->method->ssl_renegotiate(s)); 961 } 962 963 int SSL_renegotiate_pending(SSL *s) 964 { 965 /* becomes true when negotiation is requested; 966 * false again once a handshake has finished */ 967 return (s->new_session != 0); 968 } 969 970 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg) 971 { 972 long l; 973 974 switch (cmd) 975 { 976 case SSL_CTRL_GET_READ_AHEAD: 977 return(s->read_ahead); 978 case SSL_CTRL_SET_READ_AHEAD: 979 l=s->read_ahead; 980 s->read_ahead=larg; 981 return(l); 982 983 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 984 s->msg_callback_arg = parg; 985 return 1; 986 987 case SSL_CTRL_OPTIONS: 988 return(s->options|=larg); 989 case SSL_CTRL_MODE: 990 return(s->mode|=larg); 991 case SSL_CTRL_GET_MAX_CERT_LIST: 992 return(s->max_cert_list); 993 case SSL_CTRL_SET_MAX_CERT_LIST: 994 l=s->max_cert_list; 995 s->max_cert_list=larg; 996 return(l); 997 case SSL_CTRL_SET_MTU: 998 if (SSL_version(s) == DTLS1_VERSION) 999 { 1000 s->d1->mtu = larg; 1001 return larg; 1002 } 1003 return 0; 1004 default: 1005 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 1006 } 1007 } 1008 1009 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void)) 1010 { 1011 switch(cmd) 1012 { 1013 case SSL_CTRL_SET_MSG_CALLBACK: 1014 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1015 return 1; 1016 1017 default: 1018 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 1019 } 1020 } 1021 1022 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx) 1023 { 1024 return ctx->sessions; 1025 } 1026 1027 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg) 1028 { 1029 long l; 1030 1031 switch (cmd) 1032 { 1033 case SSL_CTRL_GET_READ_AHEAD: 1034 return(ctx->read_ahead); 1035 case SSL_CTRL_SET_READ_AHEAD: 1036 l=ctx->read_ahead; 1037 ctx->read_ahead=larg; 1038 return(l); 1039 1040 case SSL_CTRL_SET_MSG_CALLBACK_ARG: 1041 ctx->msg_callback_arg = parg; 1042 return 1; 1043 1044 case SSL_CTRL_GET_MAX_CERT_LIST: 1045 return(ctx->max_cert_list); 1046 case SSL_CTRL_SET_MAX_CERT_LIST: 1047 l=ctx->max_cert_list; 1048 ctx->max_cert_list=larg; 1049 return(l); 1050 1051 case SSL_CTRL_SET_SESS_CACHE_SIZE: 1052 l=ctx->session_cache_size; 1053 ctx->session_cache_size=larg; 1054 return(l); 1055 case SSL_CTRL_GET_SESS_CACHE_SIZE: 1056 return(ctx->session_cache_size); 1057 case SSL_CTRL_SET_SESS_CACHE_MODE: 1058 l=ctx->session_cache_mode; 1059 ctx->session_cache_mode=larg; 1060 return(l); 1061 case SSL_CTRL_GET_SESS_CACHE_MODE: 1062 return(ctx->session_cache_mode); 1063 1064 case SSL_CTRL_SESS_NUMBER: 1065 return(ctx->sessions->num_items); 1066 case SSL_CTRL_SESS_CONNECT: 1067 return(ctx->stats.sess_connect); 1068 case SSL_CTRL_SESS_CONNECT_GOOD: 1069 return(ctx->stats.sess_connect_good); 1070 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 1071 return(ctx->stats.sess_connect_renegotiate); 1072 case SSL_CTRL_SESS_ACCEPT: 1073 return(ctx->stats.sess_accept); 1074 case SSL_CTRL_SESS_ACCEPT_GOOD: 1075 return(ctx->stats.sess_accept_good); 1076 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 1077 return(ctx->stats.sess_accept_renegotiate); 1078 case SSL_CTRL_SESS_HIT: 1079 return(ctx->stats.sess_hit); 1080 case SSL_CTRL_SESS_CB_HIT: 1081 return(ctx->stats.sess_cb_hit); 1082 case SSL_CTRL_SESS_MISSES: 1083 return(ctx->stats.sess_miss); 1084 case SSL_CTRL_SESS_TIMEOUTS: 1085 return(ctx->stats.sess_timeout); 1086 case SSL_CTRL_SESS_CACHE_FULL: 1087 return(ctx->stats.sess_cache_full); 1088 case SSL_CTRL_OPTIONS: 1089 return(ctx->options|=larg); 1090 case SSL_CTRL_MODE: 1091 return(ctx->mode|=larg); 1092 default: 1093 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 1094 } 1095 } 1096 1097 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void)) 1098 { 1099 switch(cmd) 1100 { 1101 case SSL_CTRL_SET_MSG_CALLBACK: 1102 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp); 1103 return 1; 1104 1105 default: 1106 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 1107 } 1108 } 1109 1110 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 1111 { 1112 long l; 1113 1114 l=a->id-b->id; 1115 if (l == 0L) 1116 return(0); 1117 else 1118 return((l > 0)?1:-1); 1119 } 1120 1121 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 1122 const SSL_CIPHER * const *bp) 1123 { 1124 long l; 1125 1126 l=(*ap)->id-(*bp)->id; 1127 if (l == 0L) 1128 return(0); 1129 else 1130 return((l > 0)?1:-1); 1131 } 1132 1133 /** return a STACK of the ciphers available for the SSL and in order of 1134 * preference */ 1135 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) 1136 { 1137 if (s != NULL) 1138 { 1139 if (s->cipher_list != NULL) 1140 { 1141 return(s->cipher_list); 1142 } 1143 else if ((s->ctx != NULL) && 1144 (s->ctx->cipher_list != NULL)) 1145 { 1146 return(s->ctx->cipher_list); 1147 } 1148 } 1149 return(NULL); 1150 } 1151 1152 /** return a STACK of the ciphers available for the SSL and in order of 1153 * algorithm id */ 1154 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 1155 { 1156 if (s != NULL) 1157 { 1158 if (s->cipher_list_by_id != NULL) 1159 { 1160 return(s->cipher_list_by_id); 1161 } 1162 else if ((s->ctx != NULL) && 1163 (s->ctx->cipher_list_by_id != NULL)) 1164 { 1165 return(s->ctx->cipher_list_by_id); 1166 } 1167 } 1168 return(NULL); 1169 } 1170 1171 /** The old interface to get the same thing as SSL_get_ciphers() */ 1172 const char *SSL_get_cipher_list(const SSL *s,int n) 1173 { 1174 SSL_CIPHER *c; 1175 STACK_OF(SSL_CIPHER) *sk; 1176 1177 if (s == NULL) return(NULL); 1178 sk=SSL_get_ciphers(s); 1179 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 1180 return(NULL); 1181 c=sk_SSL_CIPHER_value(sk,n); 1182 if (c == NULL) return(NULL); 1183 return(c->name); 1184 } 1185 1186 /** specify the ciphers to be used by default by the SSL_CTX */ 1187 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 1188 { 1189 STACK_OF(SSL_CIPHER) *sk; 1190 1191 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 1192 &ctx->cipher_list_by_id,str); 1193 /* ssl_create_cipher_list may return an empty stack if it 1194 * was unable to find a cipher matching the given rule string 1195 * (for example if the rule string specifies a cipher which 1196 * has been disabled). This is not an error as far as 1197 * ssl_create_cipher_list is concerned, and hence 1198 * ctx->cipher_list and ctx->cipher_list_by_id has been 1199 * updated. */ 1200 if (sk == NULL) 1201 return 0; 1202 else if (sk_SSL_CIPHER_num(sk) == 0) 1203 { 1204 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1205 return 0; 1206 } 1207 return 1; 1208 } 1209 1210 /** specify the ciphers to be used by the SSL */ 1211 int SSL_set_cipher_list(SSL *s,const char *str) 1212 { 1213 STACK_OF(SSL_CIPHER) *sk; 1214 1215 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 1216 &s->cipher_list_by_id,str); 1217 /* see comment in SSL_CTX_set_cipher_list */ 1218 if (sk == NULL) 1219 return 0; 1220 else if (sk_SSL_CIPHER_num(sk) == 0) 1221 { 1222 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); 1223 return 0; 1224 } 1225 return 1; 1226 } 1227 1228 /* works well for SSLv2, not so good for SSLv3 */ 1229 char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len) 1230 { 1231 char *p; 1232 STACK_OF(SSL_CIPHER) *sk; 1233 SSL_CIPHER *c; 1234 int i; 1235 1236 if ((s->session == NULL) || (s->session->ciphers == NULL) || 1237 (len < 2)) 1238 return(NULL); 1239 1240 p=buf; 1241 sk=s->session->ciphers; 1242 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1243 { 1244 int n; 1245 1246 c=sk_SSL_CIPHER_value(sk,i); 1247 n=strlen(c->name); 1248 if (n+1 > len) 1249 { 1250 if (p != buf) 1251 --p; 1252 *p='\0'; 1253 return buf; 1254 } 1255 strcpy(p,c->name); 1256 p+=n; 1257 *(p++)=':'; 1258 len-=n+1; 1259 } 1260 p[-1]='\0'; 1261 return(buf); 1262 } 1263 1264 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p, 1265 int (*put_cb)(const SSL_CIPHER *, unsigned char *)) 1266 { 1267 int i,j=0; 1268 SSL_CIPHER *c; 1269 unsigned char *q; 1270 #ifndef OPENSSL_NO_KRB5 1271 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx); 1272 #endif /* OPENSSL_NO_KRB5 */ 1273 1274 if (sk == NULL) return(0); 1275 q=p; 1276 1277 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1278 { 1279 c=sk_SSL_CIPHER_value(sk,i); 1280 #ifndef OPENSSL_NO_KRB5 1281 if ((c->algorithms & SSL_KRB5) && nokrb5) 1282 continue; 1283 #endif /* OPENSSL_NO_KRB5 */ 1284 1285 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p); 1286 p+=j; 1287 } 1288 return(p-q); 1289 } 1290 1291 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1292 STACK_OF(SSL_CIPHER) **skp) 1293 { 1294 SSL_CIPHER *c; 1295 STACK_OF(SSL_CIPHER) *sk; 1296 int i,n; 1297 1298 n=ssl_put_cipher_by_char(s,NULL,NULL); 1299 if ((num%n) != 0) 1300 { 1301 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1302 return(NULL); 1303 } 1304 if ((skp == NULL) || (*skp == NULL)) 1305 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1306 else 1307 { 1308 sk= *skp; 1309 sk_SSL_CIPHER_zero(sk); 1310 } 1311 1312 for (i=0; i<num; i+=n) 1313 { 1314 c=ssl_get_cipher_by_char(s,p); 1315 p+=n; 1316 if (c != NULL) 1317 { 1318 if (!sk_SSL_CIPHER_push(sk,c)) 1319 { 1320 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1321 goto err; 1322 } 1323 } 1324 } 1325 1326 if (skp != NULL) 1327 *skp=sk; 1328 return(sk); 1329 err: 1330 if ((skp == NULL) || (*skp == NULL)) 1331 sk_SSL_CIPHER_free(sk); 1332 return(NULL); 1333 } 1334 1335 #ifndef OPENSSL_NO_TLSEXT 1336 /** return a servername extension value if provided in Client Hello, or NULL. 1337 * So far, only host_name types are defined (RFC 3546). 1338 */ 1339 1340 const char *SSL_get_servername(const SSL *s, const int type) 1341 { 1342 if (type != TLSEXT_NAMETYPE_host_name) 1343 return NULL; 1344 1345 return s->session && !s->tlsext_hostname ? 1346 s->session->tlsext_hostname : 1347 s->tlsext_hostname; 1348 } 1349 1350 int SSL_get_servername_type(const SSL *s) 1351 { 1352 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname)) 1353 return TLSEXT_NAMETYPE_host_name; 1354 return -1; 1355 } 1356 #endif 1357 1358 unsigned long SSL_SESSION_hash(const SSL_SESSION *a) 1359 { 1360 unsigned long l; 1361 1362 l=(unsigned long) 1363 ((unsigned int) a->session_id[0] )| 1364 ((unsigned int) a->session_id[1]<< 8L)| 1365 ((unsigned long)a->session_id[2]<<16L)| 1366 ((unsigned long)a->session_id[3]<<24L); 1367 return(l); 1368 } 1369 1370 /* NB: If this function (or indeed the hash function which uses a sort of 1371 * coarser function than this one) is changed, ensure 1372 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being 1373 * able to construct an SSL_SESSION that will collide with any existing session 1374 * with a matching session ID. */ 1375 int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b) 1376 { 1377 if (a->ssl_version != b->ssl_version) 1378 return(1); 1379 if (a->session_id_length != b->session_id_length) 1380 return(1); 1381 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1382 } 1383 1384 /* These wrapper functions should remain rather than redeclaring 1385 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each 1386 * variable. The reason is that the functions aren't static, they're exposed via 1387 * ssl.h. */ 1388 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *) 1389 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *) 1390 1391 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth) 1392 { 1393 SSL_CTX *ret=NULL; 1394 1395 if (meth == NULL) 1396 { 1397 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1398 return(NULL); 1399 } 1400 1401 #ifdef OPENSSL_FIPS 1402 if (FIPS_mode() && (meth->version < TLS1_VERSION)) 1403 { 1404 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE); 1405 return NULL; 1406 } 1407 #endif 1408 1409 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1410 { 1411 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1412 goto err; 1413 } 1414 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); 1415 if (ret == NULL) 1416 goto err; 1417 1418 memset(ret,0,sizeof(SSL_CTX)); 1419 1420 ret->method=meth; 1421 1422 ret->cert_store=NULL; 1423 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1424 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1425 ret->session_cache_head=NULL; 1426 ret->session_cache_tail=NULL; 1427 1428 /* We take the system default */ 1429 ret->session_timeout=meth->get_timeout(); 1430 1431 ret->new_session_cb=0; 1432 ret->remove_session_cb=0; 1433 ret->get_session_cb=0; 1434 ret->generate_session_id=0; 1435 1436 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1437 1438 ret->references=1; 1439 ret->quiet_shutdown=0; 1440 1441 /* ret->cipher=NULL;*/ 1442 /* ret->s2->challenge=NULL; 1443 ret->master_key=NULL; 1444 ret->key_arg=NULL; 1445 ret->s2->conn_id=NULL; */ 1446 1447 ret->info_callback=NULL; 1448 1449 ret->app_verify_callback=0; 1450 ret->app_verify_arg=NULL; 1451 1452 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT; 1453 ret->read_ahead=0; 1454 ret->msg_callback=0; 1455 ret->msg_callback_arg=NULL; 1456 ret->verify_mode=SSL_VERIFY_NONE; 1457 #if 0 1458 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1459 #endif 1460 ret->sid_ctx_length=0; 1461 ret->default_verify_callback=NULL; 1462 if ((ret->cert=ssl_cert_new()) == NULL) 1463 goto err; 1464 1465 ret->default_passwd_callback=0; 1466 ret->default_passwd_callback_userdata=NULL; 1467 ret->client_cert_cb=0; 1468 ret->app_gen_cookie_cb=0; 1469 ret->app_verify_cookie_cb=0; 1470 1471 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash), 1472 LHASH_COMP_FN(SSL_SESSION_cmp)); 1473 if (ret->sessions == NULL) goto err; 1474 ret->cert_store=X509_STORE_new(); 1475 if (ret->cert_store == NULL) goto err; 1476 1477 ssl_create_cipher_list(ret->method, 1478 &ret->cipher_list,&ret->cipher_list_by_id, 1479 SSL_DEFAULT_CIPHER_LIST); 1480 if (ret->cipher_list == NULL 1481 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1482 { 1483 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1484 goto err2; 1485 } 1486 1487 ret->param = X509_VERIFY_PARAM_new(); 1488 if (!ret->param) 1489 goto err; 1490 1491 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1492 { 1493 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1494 goto err2; 1495 } 1496 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1497 { 1498 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1499 goto err2; 1500 } 1501 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1502 { 1503 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1504 goto err2; 1505 } 1506 1507 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1508 goto err; 1509 1510 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); 1511 1512 ret->extra_certs=NULL; 1513 ret->comp_methods=SSL_COMP_get_compression_methods(); 1514 1515 #ifndef OPENSSL_NO_TLSEXT 1516 ret->tlsext_servername_callback = 0; 1517 ret->tlsext_servername_arg = NULL; 1518 /* Setup RFC4507 ticket keys */ 1519 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0) 1520 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) 1521 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) 1522 ret->options |= SSL_OP_NO_TICKET; 1523 1524 ret->tlsext_status_cb = 0; 1525 ret->tlsext_status_arg = NULL; 1526 1527 #endif 1528 1529 #ifndef OPENSSL_NO_ENGINE 1530 ret->client_cert_engine = NULL; 1531 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO 1532 #define eng_strx(x) #x 1533 #define eng_str(x) eng_strx(x) 1534 /* Use specific client engine automatically... ignore errors */ 1535 { 1536 ENGINE *eng; 1537 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1538 if (!eng) 1539 { 1540 ERR_clear_error(); 1541 ENGINE_load_builtin_engines(); 1542 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); 1543 } 1544 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) 1545 ERR_clear_error(); 1546 } 1547 #endif 1548 #endif 1549 1550 return(ret); 1551 err: 1552 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1553 err2: 1554 if (ret != NULL) SSL_CTX_free(ret); 1555 return(NULL); 1556 } 1557 1558 #if 0 1559 static void SSL_COMP_free(SSL_COMP *comp) 1560 { OPENSSL_free(comp); } 1561 #endif 1562 1563 void SSL_CTX_free(SSL_CTX *a) 1564 { 1565 int i; 1566 1567 if (a == NULL) return; 1568 1569 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1570 #ifdef REF_PRINT 1571 REF_PRINT("SSL_CTX",a); 1572 #endif 1573 if (i > 0) return; 1574 #ifdef REF_CHECK 1575 if (i < 0) 1576 { 1577 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1578 abort(); /* ok */ 1579 } 1580 #endif 1581 1582 if (a->param) 1583 X509_VERIFY_PARAM_free(a->param); 1584 1585 /* 1586 * Free internal session cache. However: the remove_cb() may reference 1587 * the ex_data of SSL_CTX, thus the ex_data store can only be removed 1588 * after the sessions were flushed. 1589 * As the ex_data handling routines might also touch the session cache, 1590 * the most secure solution seems to be: empty (flush) the cache, then 1591 * free ex_data, then finally free the cache. 1592 * (See ticket [openssl.org #212].) 1593 */ 1594 if (a->sessions != NULL) 1595 SSL_CTX_flush_sessions(a,0); 1596 1597 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); 1598 1599 if (a->sessions != NULL) 1600 lh_free(a->sessions); 1601 1602 if (a->cert_store != NULL) 1603 X509_STORE_free(a->cert_store); 1604 if (a->cipher_list != NULL) 1605 sk_SSL_CIPHER_free(a->cipher_list); 1606 if (a->cipher_list_by_id != NULL) 1607 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1608 if (a->cert != NULL) 1609 ssl_cert_free(a->cert); 1610 if (a->client_CA != NULL) 1611 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1612 if (a->extra_certs != NULL) 1613 sk_X509_pop_free(a->extra_certs,X509_free); 1614 #if 0 /* This should never be done, since it removes a global database */ 1615 if (a->comp_methods != NULL) 1616 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1617 #else 1618 a->comp_methods = NULL; 1619 #endif 1620 #ifndef OPENSSL_NO_ENGINE 1621 if (a->client_cert_engine) 1622 ENGINE_finish(a->client_cert_engine); 1623 #endif 1624 OPENSSL_free(a); 1625 } 1626 1627 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1628 { 1629 ctx->default_passwd_callback=cb; 1630 } 1631 1632 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1633 { 1634 ctx->default_passwd_callback_userdata=u; 1635 } 1636 1637 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg) 1638 { 1639 ctx->app_verify_callback=cb; 1640 ctx->app_verify_arg=arg; 1641 } 1642 1643 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1644 { 1645 ctx->verify_mode=mode; 1646 ctx->default_verify_callback=cb; 1647 } 1648 1649 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1650 { 1651 X509_VERIFY_PARAM_set_depth(ctx->param, depth); 1652 } 1653 1654 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) 1655 { 1656 CERT_PKEY *cpk; 1657 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1658 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1659 int rsa_tmp_export,dh_tmp_export,kl; 1660 unsigned long mask,emask; 1661 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size; 1662 #ifndef OPENSSL_NO_ECDH 1663 int have_ecdh_tmp; 1664 #endif 1665 X509 *x = NULL; 1666 EVP_PKEY *ecc_pkey = NULL; 1667 int signature_nid = 0; 1668 1669 if (c == NULL) return; 1670 1671 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1672 1673 #ifndef OPENSSL_NO_RSA 1674 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1675 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1676 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1677 #else 1678 rsa_tmp=rsa_tmp_export=0; 1679 #endif 1680 #ifndef OPENSSL_NO_DH 1681 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1682 dh_tmp_export=(c->dh_tmp_cb != NULL || 1683 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1684 #else 1685 dh_tmp=dh_tmp_export=0; 1686 #endif 1687 1688 #ifndef OPENSSL_NO_ECDH 1689 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL); 1690 #endif 1691 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1692 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1693 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1694 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1695 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1696 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1697 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1698 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1699 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1700 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1701 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1702 /* FIX THIS EAY EAY EAY */ 1703 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1704 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1705 cpk= &(c->pkeys[SSL_PKEY_ECC]); 1706 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL); 1707 mask=0; 1708 emask=0; 1709 1710 #ifdef CIPHER_DEBUG 1711 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1712 rsa_tmp,rsa_tmp_export,dh_tmp, 1713 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1714 #endif 1715 1716 if (rsa_enc || (rsa_tmp && rsa_sign)) 1717 mask|=SSL_kRSA; 1718 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1719 emask|=SSL_kRSA; 1720 1721 #if 0 1722 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1723 if ( (dh_tmp || dh_rsa || dh_dsa) && 1724 (rsa_enc || rsa_sign || dsa_sign)) 1725 mask|=SSL_kEDH; 1726 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1727 (rsa_enc || rsa_sign || dsa_sign)) 1728 emask|=SSL_kEDH; 1729 #endif 1730 1731 if (dh_tmp_export) 1732 emask|=SSL_kEDH; 1733 1734 if (dh_tmp) 1735 mask|=SSL_kEDH; 1736 1737 if (dh_rsa) mask|=SSL_kDHr; 1738 if (dh_rsa_export) emask|=SSL_kDHr; 1739 1740 if (dh_dsa) mask|=SSL_kDHd; 1741 if (dh_dsa_export) emask|=SSL_kDHd; 1742 1743 if (rsa_enc || rsa_sign) 1744 { 1745 mask|=SSL_aRSA; 1746 emask|=SSL_aRSA; 1747 } 1748 1749 if (dsa_sign) 1750 { 1751 mask|=SSL_aDSS; 1752 emask|=SSL_aDSS; 1753 } 1754 1755 mask|=SSL_aNULL; 1756 emask|=SSL_aNULL; 1757 1758 #ifndef OPENSSL_NO_KRB5 1759 mask|=SSL_kKRB5|SSL_aKRB5; 1760 emask|=SSL_kKRB5|SSL_aKRB5; 1761 #endif 1762 1763 /* An ECC certificate may be usable for ECDH and/or 1764 * ECDSA cipher suites depending on the key usage extension. 1765 */ 1766 if (have_ecc_cert) 1767 { 1768 /* This call populates extension flags (ex_flags) */ 1769 x = (c->pkeys[SSL_PKEY_ECC]).x509; 1770 X509_check_purpose(x, -1, 0); 1771 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1772 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; 1773 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? 1774 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; 1775 ecc_pkey = X509_get_pubkey(x); 1776 ecc_pkey_size = (ecc_pkey != NULL) ? 1777 EVP_PKEY_bits(ecc_pkey) : 0; 1778 EVP_PKEY_free(ecc_pkey); 1779 if ((x->sig_alg) && (x->sig_alg->algorithm)) 1780 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 1781 #ifndef OPENSSL_NO_ECDH 1782 if (ecdh_ok) 1783 { 1784 if ((signature_nid == NID_md5WithRSAEncryption) || 1785 (signature_nid == NID_md4WithRSAEncryption) || 1786 (signature_nid == NID_md2WithRSAEncryption)) 1787 { 1788 mask|=SSL_kECDH|SSL_aRSA; 1789 if (ecc_pkey_size <= 163) 1790 emask|=SSL_kECDH|SSL_aRSA; 1791 } 1792 if (signature_nid == NID_ecdsa_with_SHA1) 1793 { 1794 mask|=SSL_kECDH|SSL_aECDSA; 1795 if (ecc_pkey_size <= 163) 1796 emask|=SSL_kECDH|SSL_aECDSA; 1797 } 1798 } 1799 #endif 1800 #ifndef OPENSSL_NO_ECDSA 1801 if (ecdsa_ok) 1802 { 1803 mask|=SSL_aECDSA; 1804 emask|=SSL_aECDSA; 1805 } 1806 #endif 1807 } 1808 1809 #ifndef OPENSSL_NO_ECDH 1810 if (have_ecdh_tmp) 1811 { 1812 mask|=SSL_kECDHE; 1813 emask|=SSL_kECDHE; 1814 } 1815 #endif 1816 c->mask=mask; 1817 c->export_mask=emask; 1818 c->valid=1; 1819 } 1820 1821 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */ 1822 #define ku_reject(x, usage) \ 1823 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) 1824 1825 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs) 1826 { 1827 unsigned long alg = cs->algorithms; 1828 EVP_PKEY *pkey = NULL; 1829 int keysize = 0; 1830 int signature_nid = 0; 1831 1832 if (SSL_C_IS_EXPORT(cs)) 1833 { 1834 /* ECDH key length in export ciphers must be <= 163 bits */ 1835 pkey = X509_get_pubkey(x); 1836 if (pkey == NULL) return 0; 1837 keysize = EVP_PKEY_bits(pkey); 1838 EVP_PKEY_free(pkey); 1839 if (keysize > 163) return 0; 1840 } 1841 1842 /* This call populates the ex_flags field correctly */ 1843 X509_check_purpose(x, -1, 0); 1844 if ((x->sig_alg) && (x->sig_alg->algorithm)) 1845 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); 1846 if (alg & SSL_kECDH) 1847 { 1848 /* key usage, if present, must allow key agreement */ 1849 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) 1850 { 1851 return 0; 1852 } 1853 if (alg & SSL_aECDSA) 1854 { 1855 /* signature alg must be ECDSA */ 1856 if (signature_nid != NID_ecdsa_with_SHA1) 1857 { 1858 return 0; 1859 } 1860 } 1861 if (alg & SSL_aRSA) 1862 { 1863 /* signature alg must be RSA */ 1864 if ((signature_nid != NID_md5WithRSAEncryption) && 1865 (signature_nid != NID_md4WithRSAEncryption) && 1866 (signature_nid != NID_md2WithRSAEncryption)) 1867 { 1868 return 0; 1869 } 1870 } 1871 } 1872 else if (alg & SSL_aECDSA) 1873 { 1874 /* key usage, if present, must allow signing */ 1875 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) 1876 { 1877 return 0; 1878 } 1879 } 1880 1881 return 1; /* all checks are ok */ 1882 } 1883 1884 /* THIS NEEDS CLEANING UP */ 1885 X509 *ssl_get_server_send_cert(SSL *s) 1886 { 1887 unsigned long alg,mask,kalg; 1888 CERT *c; 1889 int i,is_export; 1890 1891 c=s->cert; 1892 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 1893 alg=s->s3->tmp.new_cipher->algorithms; 1894 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 1895 mask=is_export?c->export_mask:c->mask; 1896 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1897 1898 if (kalg & SSL_kECDH) 1899 { 1900 /* we don't need to look at SSL_kECDHE 1901 * since no certificate is needed for 1902 * anon ECDH and for authenticated 1903 * ECDHE, the check for the auth 1904 * algorithm will set i correctly 1905 * NOTE: For ECDH-RSA, we need an ECC 1906 * not an RSA cert but for ECDHE-RSA 1907 * we need an RSA cert. Placing the 1908 * checks for SSL_kECDH before RSA 1909 * checks ensures the correct cert is chosen. 1910 */ 1911 i=SSL_PKEY_ECC; 1912 } 1913 else if (kalg & SSL_aECDSA) 1914 { 1915 i=SSL_PKEY_ECC; 1916 } 1917 else if (kalg & SSL_kDHr) 1918 i=SSL_PKEY_DH_RSA; 1919 else if (kalg & SSL_kDHd) 1920 i=SSL_PKEY_DH_DSA; 1921 else if (kalg & SSL_aDSS) 1922 i=SSL_PKEY_DSA_SIGN; 1923 else if (kalg & SSL_aRSA) 1924 { 1925 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1926 i=SSL_PKEY_RSA_SIGN; 1927 else 1928 i=SSL_PKEY_RSA_ENC; 1929 } 1930 else if (kalg & SSL_aKRB5) 1931 { 1932 /* VRS something else here? */ 1933 return(NULL); 1934 } 1935 else /* if (kalg & SSL_aNULL) */ 1936 { 1937 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR); 1938 return(NULL); 1939 } 1940 if (c->pkeys[i].x509 == NULL) return(NULL); 1941 1942 return(c->pkeys[i].x509); 1943 } 1944 1945 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher) 1946 { 1947 unsigned long alg; 1948 CERT *c; 1949 1950 alg=cipher->algorithms; 1951 c=s->cert; 1952 1953 if ((alg & SSL_aDSS) && 1954 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 1955 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 1956 else if (alg & SSL_aRSA) 1957 { 1958 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 1959 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 1960 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 1961 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 1962 else 1963 return(NULL); 1964 } 1965 else if ((alg & SSL_aECDSA) && 1966 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) 1967 return(c->pkeys[SSL_PKEY_ECC].privatekey); 1968 else /* if (alg & SSL_aNULL) */ 1969 { 1970 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR); 1971 return(NULL); 1972 } 1973 } 1974 1975 void ssl_update_cache(SSL *s,int mode) 1976 { 1977 int i; 1978 1979 /* If the session_id_length is 0, we are not supposed to cache it, 1980 * and it would be rather hard to do anyway :-) */ 1981 if (s->session->session_id_length == 0) return; 1982 1983 i=s->ctx->session_cache_mode; 1984 if ((i & mode) && (!s->hit) 1985 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) 1986 || SSL_CTX_add_session(s->ctx,s->session)) 1987 && (s->ctx->new_session_cb != NULL)) 1988 { 1989 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 1990 if (!s->ctx->new_session_cb(s,s->session)) 1991 SSL_SESSION_free(s->session); 1992 } 1993 1994 /* auto flush every 255 connections */ 1995 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 1996 ((i & mode) == mode)) 1997 { 1998 if ( (((mode & SSL_SESS_CACHE_CLIENT) 1999 ?s->ctx->stats.sess_connect_good 2000 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff) 2001 { 2002 SSL_CTX_flush_sessions(s->ctx,(unsigned long)time(NULL)); 2003 } 2004 } 2005 } 2006 2007 SSL_METHOD *SSL_get_ssl_method(SSL *s) 2008 { 2009 return(s->method); 2010 } 2011 2012 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth) 2013 { 2014 int conn= -1; 2015 int ret=1; 2016 2017 if (s->method != meth) 2018 { 2019 if (s->handshake_func != NULL) 2020 conn=(s->handshake_func == s->method->ssl_connect); 2021 2022 if (s->method->version == meth->version) 2023 s->method=meth; 2024 else 2025 { 2026 s->method->ssl_free(s); 2027 s->method=meth; 2028 ret=s->method->ssl_new(s); 2029 } 2030 2031 if (conn == 1) 2032 s->handshake_func=meth->ssl_connect; 2033 else if (conn == 0) 2034 s->handshake_func=meth->ssl_accept; 2035 } 2036 return(ret); 2037 } 2038 2039 int SSL_get_error(const SSL *s,int i) 2040 { 2041 int reason; 2042 unsigned long l; 2043 BIO *bio; 2044 2045 if (i > 0) return(SSL_ERROR_NONE); 2046 2047 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 2048 * etc, where we do encode the error */ 2049 if ((l=ERR_peek_error()) != 0) 2050 { 2051 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 2052 return(SSL_ERROR_SYSCALL); 2053 else 2054 return(SSL_ERROR_SSL); 2055 } 2056 2057 if ((i < 0) && SSL_want_read(s)) 2058 { 2059 bio=SSL_get_rbio(s); 2060 if (BIO_should_read(bio)) 2061 return(SSL_ERROR_WANT_READ); 2062 else if (BIO_should_write(bio)) 2063 /* This one doesn't make too much sense ... We never try 2064 * to write to the rbio, and an application program where 2065 * rbio and wbio are separate couldn't even know what it 2066 * should wait for. 2067 * However if we ever set s->rwstate incorrectly 2068 * (so that we have SSL_want_read(s) instead of 2069 * SSL_want_write(s)) and rbio and wbio *are* the same, 2070 * this test works around that bug; so it might be safer 2071 * to keep it. */ 2072 return(SSL_ERROR_WANT_WRITE); 2073 else if (BIO_should_io_special(bio)) 2074 { 2075 reason=BIO_get_retry_reason(bio); 2076 if (reason == BIO_RR_CONNECT) 2077 return(SSL_ERROR_WANT_CONNECT); 2078 else if (reason == BIO_RR_ACCEPT) 2079 return(SSL_ERROR_WANT_ACCEPT); 2080 else 2081 return(SSL_ERROR_SYSCALL); /* unknown */ 2082 } 2083 } 2084 2085 if ((i < 0) && SSL_want_write(s)) 2086 { 2087 bio=SSL_get_wbio(s); 2088 if (BIO_should_write(bio)) 2089 return(SSL_ERROR_WANT_WRITE); 2090 else if (BIO_should_read(bio)) 2091 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 2092 return(SSL_ERROR_WANT_READ); 2093 else if (BIO_should_io_special(bio)) 2094 { 2095 reason=BIO_get_retry_reason(bio); 2096 if (reason == BIO_RR_CONNECT) 2097 return(SSL_ERROR_WANT_CONNECT); 2098 else if (reason == BIO_RR_ACCEPT) 2099 return(SSL_ERROR_WANT_ACCEPT); 2100 else 2101 return(SSL_ERROR_SYSCALL); 2102 } 2103 } 2104 if ((i < 0) && SSL_want_x509_lookup(s)) 2105 { 2106 return(SSL_ERROR_WANT_X509_LOOKUP); 2107 } 2108 2109 if (i == 0) 2110 { 2111 if (s->version == SSL2_VERSION) 2112 { 2113 /* assume it is the socket being closed */ 2114 return(SSL_ERROR_ZERO_RETURN); 2115 } 2116 else 2117 { 2118 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 2119 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 2120 return(SSL_ERROR_ZERO_RETURN); 2121 } 2122 } 2123 return(SSL_ERROR_SYSCALL); 2124 } 2125 2126 int SSL_do_handshake(SSL *s) 2127 { 2128 int ret=1; 2129 2130 if (s->handshake_func == NULL) 2131 { 2132 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 2133 return(-1); 2134 } 2135 2136 s->method->ssl_renegotiate_check(s); 2137 2138 if (SSL_in_init(s) || SSL_in_before(s)) 2139 { 2140 ret=s->handshake_func(s); 2141 } 2142 return(ret); 2143 } 2144 2145 /* For the next 2 functions, SSL_clear() sets shutdown and so 2146 * one of these calls will reset it */ 2147 void SSL_set_accept_state(SSL *s) 2148 { 2149 s->server=1; 2150 s->shutdown=0; 2151 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 2152 s->handshake_func=s->method->ssl_accept; 2153 /* clear the current cipher */ 2154 ssl_clear_cipher_ctx(s); 2155 } 2156 2157 void SSL_set_connect_state(SSL *s) 2158 { 2159 s->server=0; 2160 s->shutdown=0; 2161 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 2162 s->handshake_func=s->method->ssl_connect; 2163 /* clear the current cipher */ 2164 ssl_clear_cipher_ctx(s); 2165 } 2166 2167 int ssl_undefined_function(SSL *s) 2168 { 2169 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2170 return(0); 2171 } 2172 2173 int ssl_undefined_void_function(void) 2174 { 2175 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2176 return(0); 2177 } 2178 2179 int ssl_undefined_const_function(const SSL *s) 2180 { 2181 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2182 return(0); 2183 } 2184 2185 SSL_METHOD *ssl_bad_method(int ver) 2186 { 2187 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 2188 return(NULL); 2189 } 2190 2191 const char *SSL_get_version(const SSL *s) 2192 { 2193 if (s->version == TLS1_VERSION) 2194 return("TLSv1"); 2195 else if (s->version == SSL3_VERSION) 2196 return("SSLv3"); 2197 else if (s->version == SSL2_VERSION) 2198 return("SSLv2"); 2199 else 2200 return("unknown"); 2201 } 2202 2203 SSL *SSL_dup(SSL *s) 2204 { 2205 STACK_OF(X509_NAME) *sk; 2206 X509_NAME *xn; 2207 SSL *ret; 2208 int i; 2209 2210 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 2211 return(NULL); 2212 2213 ret->version = s->version; 2214 ret->type = s->type; 2215 ret->method = s->method; 2216 2217 if (s->session != NULL) 2218 { 2219 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 2220 SSL_copy_session_id(ret,s); 2221 } 2222 else 2223 { 2224 /* No session has been established yet, so we have to expect 2225 * that s->cert or ret->cert will be changed later -- 2226 * they should not both point to the same object, 2227 * and thus we can't use SSL_copy_session_id. */ 2228 2229 ret->method->ssl_free(ret); 2230 ret->method = s->method; 2231 ret->method->ssl_new(ret); 2232 2233 if (s->cert != NULL) 2234 { 2235 if (ret->cert != NULL) 2236 { 2237 ssl_cert_free(ret->cert); 2238 } 2239 ret->cert = ssl_cert_dup(s->cert); 2240 if (ret->cert == NULL) 2241 goto err; 2242 } 2243 2244 SSL_set_session_id_context(ret, 2245 s->sid_ctx, s->sid_ctx_length); 2246 } 2247 2248 ret->options=s->options; 2249 ret->mode=s->mode; 2250 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s)); 2251 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 2252 ret->msg_callback = s->msg_callback; 2253 ret->msg_callback_arg = s->msg_callback_arg; 2254 SSL_set_verify(ret,SSL_get_verify_mode(s), 2255 SSL_get_verify_callback(s)); 2256 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 2257 ret->generate_session_id = s->generate_session_id; 2258 2259 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 2260 2261 ret->debug=s->debug; 2262 2263 /* copy app data, a little dangerous perhaps */ 2264 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) 2265 goto err; 2266 2267 /* setup rbio, and wbio */ 2268 if (s->rbio != NULL) 2269 { 2270 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 2271 goto err; 2272 } 2273 if (s->wbio != NULL) 2274 { 2275 if (s->wbio != s->rbio) 2276 { 2277 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 2278 goto err; 2279 } 2280 else 2281 ret->wbio=ret->rbio; 2282 } 2283 ret->rwstate = s->rwstate; 2284 ret->in_handshake = s->in_handshake; 2285 ret->handshake_func = s->handshake_func; 2286 ret->server = s->server; 2287 ret->new_session = s->new_session; 2288 ret->quiet_shutdown = s->quiet_shutdown; 2289 ret->shutdown=s->shutdown; 2290 ret->state=s->state; /* SSL_dup does not really work at any state, though */ 2291 ret->rstate=s->rstate; 2292 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */ 2293 ret->hit=s->hit; 2294 2295 X509_VERIFY_PARAM_inherit(ret->param, s->param); 2296 2297 /* dup the cipher_list and cipher_list_by_id stacks */ 2298 if (s->cipher_list != NULL) 2299 { 2300 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 2301 goto err; 2302 } 2303 if (s->cipher_list_by_id != NULL) 2304 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 2305 == NULL) 2306 goto err; 2307 2308 /* Dup the client_CA list */ 2309 if (s->client_CA != NULL) 2310 { 2311 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 2312 ret->client_CA=sk; 2313 for (i=0; i<sk_X509_NAME_num(sk); i++) 2314 { 2315 xn=sk_X509_NAME_value(sk,i); 2316 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 2317 { 2318 X509_NAME_free(xn); 2319 goto err; 2320 } 2321 } 2322 } 2323 2324 if (0) 2325 { 2326 err: 2327 if (ret != NULL) SSL_free(ret); 2328 ret=NULL; 2329 } 2330 return(ret); 2331 } 2332 2333 void ssl_clear_cipher_ctx(SSL *s) 2334 { 2335 if (s->enc_read_ctx != NULL) 2336 { 2337 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 2338 OPENSSL_free(s->enc_read_ctx); 2339 s->enc_read_ctx=NULL; 2340 } 2341 if (s->enc_write_ctx != NULL) 2342 { 2343 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 2344 OPENSSL_free(s->enc_write_ctx); 2345 s->enc_write_ctx=NULL; 2346 } 2347 #ifndef OPENSSL_NO_COMP 2348 if (s->expand != NULL) 2349 { 2350 COMP_CTX_free(s->expand); 2351 s->expand=NULL; 2352 } 2353 if (s->compress != NULL) 2354 { 2355 COMP_CTX_free(s->compress); 2356 s->compress=NULL; 2357 } 2358 #endif 2359 } 2360 2361 /* Fix this function so that it takes an optional type parameter */ 2362 X509 *SSL_get_certificate(const SSL *s) 2363 { 2364 if (s->cert != NULL) 2365 return(s->cert->key->x509); 2366 else 2367 return(NULL); 2368 } 2369 2370 /* Fix this function so that it takes an optional type parameter */ 2371 EVP_PKEY *SSL_get_privatekey(SSL *s) 2372 { 2373 if (s->cert != NULL) 2374 return(s->cert->key->privatekey); 2375 else 2376 return(NULL); 2377 } 2378 2379 SSL_CIPHER *SSL_get_current_cipher(const SSL *s) 2380 { 2381 if ((s->session != NULL) && (s->session->cipher != NULL)) 2382 return(s->session->cipher); 2383 return(NULL); 2384 } 2385 #ifdef OPENSSL_NO_COMP 2386 const void *SSL_get_current_compression(SSL *s) 2387 { 2388 return NULL; 2389 } 2390 const void *SSL_get_current_expansion(SSL *s) 2391 { 2392 return NULL; 2393 } 2394 #else 2395 2396 const COMP_METHOD *SSL_get_current_compression(SSL *s) 2397 { 2398 if (s->compress != NULL) 2399 return(s->compress->meth); 2400 return(NULL); 2401 } 2402 2403 const COMP_METHOD *SSL_get_current_expansion(SSL *s) 2404 { 2405 if (s->expand != NULL) 2406 return(s->expand->meth); 2407 return(NULL); 2408 } 2409 #endif 2410 2411 int ssl_init_wbio_buffer(SSL *s,int push) 2412 { 2413 BIO *bbio; 2414 2415 if (s->bbio == NULL) 2416 { 2417 bbio=BIO_new(BIO_f_buffer()); 2418 if (bbio == NULL) return(0); 2419 s->bbio=bbio; 2420 } 2421 else 2422 { 2423 bbio=s->bbio; 2424 if (s->bbio == s->wbio) 2425 s->wbio=BIO_pop(s->wbio); 2426 } 2427 (void)BIO_reset(bbio); 2428 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 2429 if (!BIO_set_read_buffer_size(bbio,1)) 2430 { 2431 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 2432 return(0); 2433 } 2434 if (push) 2435 { 2436 if (s->wbio != bbio) 2437 s->wbio=BIO_push(bbio,s->wbio); 2438 } 2439 else 2440 { 2441 if (s->wbio == bbio) 2442 s->wbio=BIO_pop(bbio); 2443 } 2444 return(1); 2445 } 2446 2447 void ssl_free_wbio_buffer(SSL *s) 2448 { 2449 if (s->bbio == NULL) return; 2450 2451 if (s->bbio == s->wbio) 2452 { 2453 /* remove buffering */ 2454 s->wbio=BIO_pop(s->wbio); 2455 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */ 2456 assert(s->wbio != NULL); 2457 #endif 2458 } 2459 BIO_free(s->bbio); 2460 s->bbio=NULL; 2461 } 2462 2463 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 2464 { 2465 ctx->quiet_shutdown=mode; 2466 } 2467 2468 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) 2469 { 2470 return(ctx->quiet_shutdown); 2471 } 2472 2473 void SSL_set_quiet_shutdown(SSL *s,int mode) 2474 { 2475 s->quiet_shutdown=mode; 2476 } 2477 2478 int SSL_get_quiet_shutdown(const SSL *s) 2479 { 2480 return(s->quiet_shutdown); 2481 } 2482 2483 void SSL_set_shutdown(SSL *s,int mode) 2484 { 2485 s->shutdown=mode; 2486 } 2487 2488 int SSL_get_shutdown(const SSL *s) 2489 { 2490 return(s->shutdown); 2491 } 2492 2493 int SSL_version(const SSL *s) 2494 { 2495 return(s->version); 2496 } 2497 2498 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) 2499 { 2500 return(ssl->ctx); 2501 } 2502 2503 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx) 2504 { 2505 if (ssl->ctx == ctx) 2506 return ssl->ctx; 2507 #ifndef OPENSSL_NO_TLSEXT 2508 if (ctx == NULL) 2509 ctx = ssl->initial_ctx; 2510 #endif 2511 if (ssl->cert != NULL) 2512 ssl_cert_free(ssl->cert); 2513 ssl->cert = ssl_cert_dup(ctx->cert); 2514 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 2515 if (ssl->ctx != NULL) 2516 SSL_CTX_free(ssl->ctx); /* decrement reference count */ 2517 ssl->ctx = ctx; 2518 return(ssl->ctx); 2519 } 2520 2521 #ifndef OPENSSL_NO_STDIO 2522 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 2523 { 2524 return(X509_STORE_set_default_paths(ctx->cert_store)); 2525 } 2526 2527 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 2528 const char *CApath) 2529 { 2530 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 2531 } 2532 #endif 2533 2534 void SSL_set_info_callback(SSL *ssl, 2535 void (*cb)(const SSL *ssl,int type,int val)) 2536 { 2537 ssl->info_callback=cb; 2538 } 2539 2540 /* One compiler (Diab DCC) doesn't like argument names in returned 2541 function pointer. */ 2542 void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/) 2543 { 2544 return ssl->info_callback; 2545 } 2546 2547 int SSL_state(const SSL *ssl) 2548 { 2549 return(ssl->state); 2550 } 2551 2552 void SSL_set_verify_result(SSL *ssl,long arg) 2553 { 2554 ssl->verify_result=arg; 2555 } 2556 2557 long SSL_get_verify_result(const SSL *ssl) 2558 { 2559 return(ssl->verify_result); 2560 } 2561 2562 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2563 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2564 { 2565 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, 2566 new_func, dup_func, free_func); 2567 } 2568 2569 int SSL_set_ex_data(SSL *s,int idx,void *arg) 2570 { 2571 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2572 } 2573 2574 void *SSL_get_ex_data(const SSL *s,int idx) 2575 { 2576 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2577 } 2578 2579 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 2580 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 2581 { 2582 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, 2583 new_func, dup_func, free_func); 2584 } 2585 2586 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 2587 { 2588 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 2589 } 2590 2591 void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx) 2592 { 2593 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 2594 } 2595 2596 int ssl_ok(SSL *s) 2597 { 2598 return(1); 2599 } 2600 2601 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) 2602 { 2603 return(ctx->cert_store); 2604 } 2605 2606 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 2607 { 2608 if (ctx->cert_store != NULL) 2609 X509_STORE_free(ctx->cert_store); 2610 ctx->cert_store=store; 2611 } 2612 2613 int SSL_want(const SSL *s) 2614 { 2615 return(s->rwstate); 2616 } 2617 2618 /*! 2619 * \brief Set the callback for generating temporary RSA keys. 2620 * \param ctx the SSL context. 2621 * \param cb the callback 2622 */ 2623 2624 #ifndef OPENSSL_NO_RSA 2625 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2626 int is_export, 2627 int keylength)) 2628 { 2629 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2630 } 2631 2632 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2633 int is_export, 2634 int keylength)) 2635 { 2636 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb); 2637 } 2638 #endif 2639 2640 #ifdef DOXYGEN 2641 /*! 2642 * \brief The RSA temporary key callback function. 2643 * \param ssl the SSL session. 2644 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2645 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2646 * of the required key in bits. 2647 * \return the temporary RSA key. 2648 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2649 */ 2650 2651 RSA *cb(SSL *ssl,int is_export,int keylength) 2652 {} 2653 #endif 2654 2655 /*! 2656 * \brief Set the callback for generating temporary DH keys. 2657 * \param ctx the SSL context. 2658 * \param dh the callback 2659 */ 2660 2661 #ifndef OPENSSL_NO_DH 2662 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2663 int keylength)) 2664 { 2665 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2666 } 2667 2668 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2669 int keylength)) 2670 { 2671 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh); 2672 } 2673 #endif 2674 2675 #ifndef OPENSSL_NO_ECDH 2676 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2677 int keylength)) 2678 { 2679 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2680 } 2681 2682 void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export, 2683 int keylength)) 2684 { 2685 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh); 2686 } 2687 #endif 2688 2689 2690 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)) 2691 { 2692 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2693 } 2694 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)) 2695 { 2696 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); 2697 } 2698 2699 2700 2701 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16) 2702 #include "../crypto/bio/bss_file.c" 2703 #endif 2704 2705 IMPLEMENT_STACK_OF(SSL_CIPHER) 2706 IMPLEMENT_STACK_OF(SSL_COMP) 2707