ssl_lib.c revision 1.3
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#include <stdio.h> 62#include <openssl/objects.h> 63#include <openssl/lhash.h> 64#include <openssl/x509v3.h> 65#include "ssl_locl.h" 66 67const char *SSL_version_str=OPENSSL_VERSION_TEXT; 68 69static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_meth=NULL; 70static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_ctx_meth=NULL; 71static int ssl_meth_num=0; 72static int ssl_ctx_meth_num=0; 73 74OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={ 75 /* evil casts, but these functions are only called if there's a library bug */ 76 (int (*)(SSL *,int))ssl_undefined_function, 77 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, 78 ssl_undefined_function, 79 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function, 80 (int (*)(SSL*, int))ssl_undefined_function, 81 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function 82 }; 83 84int SSL_clear(SSL *s) 85 { 86 int state; 87 88 if (s->method == NULL) 89 { 90 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED); 91 return(0); 92 } 93 94 s->error=0; 95 s->hit=0; 96 s->shutdown=0; 97 98#if 0 /* Disabled since version 1.10 of this file (early return not 99 * needed because SSL_clear is not called when doing renegotiation) */ 100 /* This is set if we are doing dynamic renegotiation so keep 101 * the old cipher. It is sort of a SSL_clear_lite :-) */ 102 if (s->new_session) return(1); 103#else 104 if (s->new_session) 105 { 106 SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR); 107 return 0; 108 } 109#endif 110 111 state=s->state; /* Keep to check if we throw away the session-id */ 112 s->type=0; 113 114 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT); 115 116 s->version=s->method->version; 117 s->client_version=s->version; 118 s->rwstate=SSL_NOTHING; 119 s->rstate=SSL_ST_READ_HEADER; 120 s->read_ahead=s->ctx->read_ahead; 121 122 if (s->init_buf != NULL) 123 { 124 BUF_MEM_free(s->init_buf); 125 s->init_buf=NULL; 126 } 127 128 ssl_clear_cipher_ctx(s); 129 130 if (ssl_clear_bad_session(s)) 131 { 132 SSL_SESSION_free(s->session); 133 s->session=NULL; 134 } 135 136 s->first_packet=0; 137 138#if 1 139 /* Check to see if we were changed into a different method, if 140 * so, revert back if we are not doing session-id reuse. */ 141 if ((s->session == NULL) && (s->method != s->ctx->method)) 142 { 143 s->method->ssl_free(s); 144 s->method=s->ctx->method; 145 if (!s->method->ssl_new(s)) 146 return(0); 147 } 148 else 149#endif 150 s->method->ssl_clear(s); 151 return(1); 152 } 153 154/** Used to change an SSL_CTXs default SSL method type */ 155int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth) 156 { 157 STACK_OF(SSL_CIPHER) *sk; 158 159 ctx->method=meth; 160 161 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list), 162 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST); 163 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) 164 { 165 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 166 return(0); 167 } 168 return(1); 169 } 170 171SSL *SSL_new(SSL_CTX *ctx) 172 { 173 SSL *s; 174 175 if (ctx == NULL) 176 { 177 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX); 178 return(NULL); 179 } 180 if (ctx->method == NULL) 181 { 182 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 183 return(NULL); 184 } 185 186 s=(SSL *)Malloc(sizeof(SSL)); 187 if (s == NULL) goto err; 188 memset(s,0,sizeof(SSL)); 189 190 if (ctx->cert != NULL) 191 { 192 /* Earlier library versions used to copy the pointer to 193 * the CERT, not its contents; only when setting new 194 * parameters for the per-SSL copy, ssl_cert_new would be 195 * called (and the direct reference to the per-SSL_CTX 196 * settings would be lost, but those still were indirectly 197 * accessed for various purposes, and for that reason they 198 * used to be known as s->ctx->default_cert). 199 * Now we don't look at the SSL_CTX's CERT after having 200 * duplicated it once. */ 201 202 s->cert = ssl_cert_dup(ctx->cert); 203 if (s->cert == NULL) 204 goto err; 205 } 206 else 207 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 208 s->sid_ctx_length=ctx->sid_ctx_length; 209 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx)); 210 s->verify_mode=ctx->verify_mode; 211 s->verify_depth=ctx->verify_depth; 212 s->verify_callback=ctx->default_verify_callback; 213 s->purpose = ctx->purpose; 214 s->trust = ctx->trust; 215 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 216 s->ctx=ctx; 217 218 s->verify_result=X509_V_OK; 219 220 s->method=ctx->method; 221 222 if (!s->method->ssl_new(s)) 223 goto err; 224 225 s->quiet_shutdown=ctx->quiet_shutdown; 226 s->references=1; 227 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1; 228 s->options=ctx->options; 229 s->mode=ctx->mode; 230 SSL_clear(s); 231 232 CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data); 233 234 return(s); 235err: 236 if (s != NULL) 237 { 238 if (s->cert != NULL) 239 ssl_cert_free(s->cert); 240 if (s->ctx != NULL) 241 SSL_CTX_free(s->ctx); /* decrement reference count */ 242 Free(s); 243 } 244 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE); 245 return(NULL); 246 } 247 248int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx, 249 unsigned int sid_ctx_len) 250 { 251 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 252 { 253 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 254 return 0; 255 } 256 ctx->sid_ctx_length=sid_ctx_len; 257 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len); 258 259 return 1; 260 } 261 262int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx, 263 unsigned int sid_ctx_len) 264 { 265 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 266 { 267 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 268 return 0; 269 } 270 ssl->sid_ctx_length=sid_ctx_len; 271 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len); 272 273 return 1; 274 } 275 276int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 277{ 278 if(X509_PURPOSE_get_by_id(purpose) == -1) { 279 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE); 280 return 0; 281 } 282 s->purpose = purpose; 283 return 1; 284} 285 286int SSL_set_purpose(SSL *s, int purpose) 287{ 288 if(X509_PURPOSE_get_by_id(purpose) == -1) { 289 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE); 290 return 0; 291 } 292 s->purpose = purpose; 293 return 1; 294} 295 296int SSL_CTX_set_trust(SSL_CTX *s, int trust) 297{ 298 if(X509_TRUST_get_by_id(trust) == -1) { 299 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST); 300 return 0; 301 } 302 s->trust = trust; 303 return 1; 304} 305 306int SSL_set_trust(SSL *s, int trust) 307{ 308 if(X509_TRUST_get_by_id(trust) == -1) { 309 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST); 310 return 0; 311 } 312 s->trust = trust; 313 return 1; 314} 315 316void SSL_free(SSL *s) 317 { 318 int i; 319 320 if(s == NULL) 321 return; 322 323 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL); 324#ifdef REF_PRINT 325 REF_PRINT("SSL",s); 326#endif 327 if (i > 0) return; 328#ifdef REF_CHECK 329 if (i < 0) 330 { 331 fprintf(stderr,"SSL_free, bad reference count\n"); 332 abort(); /* ok */ 333 } 334#endif 335 336 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data); 337 338 if (s->bbio != NULL) 339 { 340 /* If the buffering BIO is in place, pop it off */ 341 if (s->bbio == s->wbio) 342 { 343 s->wbio=BIO_pop(s->wbio); 344 } 345 BIO_free(s->bbio); 346 s->bbio=NULL; 347 } 348 if (s->rbio != NULL) 349 BIO_free_all(s->rbio); 350 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 351 BIO_free_all(s->wbio); 352 353 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf); 354 355 /* add extra stuff */ 356 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list); 357 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id); 358 359 /* Make the next call work :-) */ 360 if (s->session != NULL) 361 { 362 ssl_clear_bad_session(s); 363 SSL_SESSION_free(s->session); 364 } 365 366 ssl_clear_cipher_ctx(s); 367 368 if (s->cert != NULL) ssl_cert_free(s->cert); 369 /* Free up if allocated */ 370 371 if (s->ctx) SSL_CTX_free(s->ctx); 372 373 if (s->client_CA != NULL) 374 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free); 375 376 if (s->method != NULL) s->method->ssl_free(s); 377 378 Free(s); 379 } 380 381void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio) 382 { 383 /* If the output buffering BIO is still in place, remove it 384 */ 385 if (s->bbio != NULL) 386 { 387 if (s->wbio == s->bbio) 388 { 389 s->wbio=s->wbio->next_bio; 390 s->bbio->next_bio=NULL; 391 } 392 } 393 if ((s->rbio != NULL) && (s->rbio != rbio)) 394 BIO_free_all(s->rbio); 395 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 396 BIO_free_all(s->wbio); 397 s->rbio=rbio; 398 s->wbio=wbio; 399 } 400 401BIO *SSL_get_rbio(SSL *s) 402 { return(s->rbio); } 403 404BIO *SSL_get_wbio(SSL *s) 405 { return(s->wbio); } 406 407int SSL_get_fd(SSL *s) 408 { 409 int ret= -1; 410 BIO *b,*r; 411 412 b=SSL_get_rbio(s); 413 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 414 if (r != NULL) 415 BIO_get_fd(r,&ret); 416 return(ret); 417 } 418 419#ifndef NO_SOCK 420int SSL_set_fd(SSL *s,int fd) 421 { 422 int ret=0; 423 BIO *bio=NULL; 424 425 bio=BIO_new(BIO_s_socket()); 426 427 if (bio == NULL) 428 { 429 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 430 goto err; 431 } 432 BIO_set_fd(bio,fd,BIO_NOCLOSE); 433 SSL_set_bio(s,bio,bio); 434 ret=1; 435err: 436 return(ret); 437 } 438 439int SSL_set_wfd(SSL *s,int fd) 440 { 441 int ret=0; 442 BIO *bio=NULL; 443 444 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 445 || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 446 { 447 bio=BIO_new(BIO_s_socket()); 448 449 if (bio == NULL) 450 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 451 BIO_set_fd(bio,fd,BIO_NOCLOSE); 452 SSL_set_bio(s,SSL_get_rbio(s),bio); 453 } 454 else 455 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 456 ret=1; 457err: 458 return(ret); 459 } 460 461int SSL_set_rfd(SSL *s,int fd) 462 { 463 int ret=0; 464 BIO *bio=NULL; 465 466 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 467 || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 468 { 469 bio=BIO_new(BIO_s_socket()); 470 471 if (bio == NULL) 472 { 473 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 474 goto err; 475 } 476 BIO_set_fd(bio,fd,BIO_NOCLOSE); 477 SSL_set_bio(s,bio,SSL_get_wbio(s)); 478 } 479 else 480 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 481 ret=1; 482err: 483 return(ret); 484 } 485#endif 486 487 488/* return length of latest Finished message we sent, copy to 'buf' */ 489size_t SSL_get_finished(SSL *s, void *buf, size_t count) 490 { 491 size_t ret = 0; 492 493 if (s->s3 != NULL) 494 { 495 ret = s->s3->tmp.finish_md_len; 496 if (count > ret) 497 count = ret; 498 memcpy(buf, s->s3->tmp.finish_md, count); 499 } 500 return ret; 501 } 502 503/* return length of latest Finished message we expected, copy to 'buf' */ 504size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count) 505 { 506 size_t ret = 0; 507 508 if (s->s3 != NULL) 509 { 510 ret = s->s3->tmp.peer_finish_md_len; 511 if (count > ret) 512 count = ret; 513 memcpy(buf, s->s3->tmp.peer_finish_md, count); 514 } 515 return ret; 516 } 517 518 519int SSL_get_verify_mode(SSL *s) 520 { 521 return(s->verify_mode); 522 } 523 524int SSL_get_verify_depth(SSL *s) 525 { 526 return(s->verify_depth); 527 } 528 529int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *) 530 { 531 return(s->verify_callback); 532 } 533 534int SSL_CTX_get_verify_mode(SSL_CTX *ctx) 535 { 536 return(ctx->verify_mode); 537 } 538 539int SSL_CTX_get_verify_depth(SSL_CTX *ctx) 540 { 541 return(ctx->verify_depth); 542 } 543 544int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *) 545 { 546 return(ctx->default_verify_callback); 547 } 548 549void SSL_set_verify(SSL *s,int mode, 550 int (*callback)(int ok,X509_STORE_CTX *ctx)) 551 { 552 s->verify_mode=mode; 553 if (callback != NULL) 554 s->verify_callback=callback; 555 } 556 557void SSL_set_verify_depth(SSL *s,int depth) 558 { 559 s->verify_depth=depth; 560 } 561 562void SSL_set_read_ahead(SSL *s,int yes) 563 { 564 s->read_ahead=yes; 565 } 566 567int SSL_get_read_ahead(SSL *s) 568 { 569 return(s->read_ahead); 570 } 571 572int SSL_pending(SSL *s) 573 { 574 return(s->method->ssl_pending(s)); 575 } 576 577X509 *SSL_get_peer_certificate(SSL *s) 578 { 579 X509 *r; 580 581 if ((s == NULL) || (s->session == NULL)) 582 r=NULL; 583 else 584 r=s->session->peer; 585 586 if (r == NULL) return(r); 587 588 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 589 590 return(r); 591 } 592 593STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s) 594 { 595 STACK_OF(X509) *r; 596 597 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 598 r=NULL; 599 else 600 r=s->session->sess_cert->cert_chain; 601 602 return(r); 603 } 604 605/* Now in theory, since the calling process own 't' it should be safe to 606 * modify. We need to be able to read f without being hassled */ 607void SSL_copy_session_id(SSL *t,SSL *f) 608 { 609 CERT *tmp; 610 611 /* Do we need to to SSL locking? */ 612 SSL_set_session(t,SSL_get_session(f)); 613 614 /* what if we are setup as SSLv2 but want to talk SSLv3 or 615 * vice-versa */ 616 if (t->method != f->method) 617 { 618 t->method->ssl_free(t); /* cleanup current */ 619 t->method=f->method; /* change method */ 620 t->method->ssl_new(t); /* setup new */ 621 } 622 623 tmp=t->cert; 624 if (f->cert != NULL) 625 { 626 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 627 t->cert=f->cert; 628 } 629 else 630 t->cert=NULL; 631 if (tmp != NULL) ssl_cert_free(tmp); 632 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length); 633 } 634 635/* Fix this so it checks all the valid key/cert options */ 636int SSL_CTX_check_private_key(SSL_CTX *ctx) 637 { 638 if ( (ctx == NULL) || 639 (ctx->cert == NULL) || 640 (ctx->cert->key->x509 == NULL)) 641 { 642 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 643 return(0); 644 } 645 if (ctx->cert->key->privatekey == NULL) 646 { 647 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 648 return(0); 649 } 650 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 651 } 652 653/* Fix this function so that it takes an optional type parameter */ 654int SSL_check_private_key(SSL *ssl) 655 { 656 if (ssl == NULL) 657 { 658 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 659 return(0); 660 } 661 if (ssl->cert == NULL) 662 { 663 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 664 return 0; 665 } 666 if (ssl->cert->key->x509 == NULL) 667 { 668 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 669 return(0); 670 } 671 if (ssl->cert->key->privatekey == NULL) 672 { 673 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 674 return(0); 675 } 676 return(X509_check_private_key(ssl->cert->key->x509, 677 ssl->cert->key->privatekey)); 678 } 679 680int SSL_accept(SSL *s) 681 { 682 if (s->handshake_func == 0) 683 /* Not properly initialized yet */ 684 SSL_set_accept_state(s); 685 686 return(s->method->ssl_accept(s)); 687 } 688 689int SSL_connect(SSL *s) 690 { 691 if (s->handshake_func == 0) 692 /* Not properly initialized yet */ 693 SSL_set_connect_state(s); 694 695 return(s->method->ssl_connect(s)); 696 } 697 698long SSL_get_default_timeout(SSL *s) 699 { 700 return(s->method->get_timeout()); 701 } 702 703int SSL_read(SSL *s,char *buf,int num) 704 { 705 if (s->handshake_func == 0) 706 { 707 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 708 return -1; 709 } 710 711 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 712 { 713 s->rwstate=SSL_NOTHING; 714 return(0); 715 } 716 return(s->method->ssl_read(s,buf,num)); 717 } 718 719int SSL_peek(SSL *s,char *buf,int num) 720 { 721 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 722 { 723 return(0); 724 } 725 return(s->method->ssl_peek(s,buf,num)); 726 } 727 728int SSL_write(SSL *s,const char *buf,int num) 729 { 730 if (s->handshake_func == 0) 731 { 732 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 733 return -1; 734 } 735 736 if (s->shutdown & SSL_SENT_SHUTDOWN) 737 { 738 s->rwstate=SSL_NOTHING; 739 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 740 return(-1); 741 } 742 return(s->method->ssl_write(s,buf,num)); 743 } 744 745int SSL_shutdown(SSL *s) 746 { 747 /* Note that this function behaves differently from what one might 748 * expect. Return values are 0 for no success (yet), 749 * 1 for success; but calling it once is usually not enough, 750 * even if blocking I/O is used (see ssl3_shutdown). 751 */ 752 753 if (s->handshake_func == 0) 754 { 755 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 756 return -1; 757 } 758 759 if ((s != NULL) && !SSL_in_init(s)) 760 return(s->method->ssl_shutdown(s)); 761 else 762 return(1); 763 } 764 765int SSL_renegotiate(SSL *s) 766 { 767 s->new_session=1; 768 return(s->method->ssl_renegotiate(s)); 769 } 770 771long SSL_ctrl(SSL *s,int cmd,long larg,char *parg) 772 { 773 long l; 774 775 switch (cmd) 776 { 777 case SSL_CTRL_GET_READ_AHEAD: 778 return(s->read_ahead); 779 case SSL_CTRL_SET_READ_AHEAD: 780 l=s->read_ahead; 781 s->read_ahead=larg; 782 return(l); 783 case SSL_CTRL_OPTIONS: 784 return(s->options|=larg); 785 case SSL_CTRL_MODE: 786 return(s->mode|=larg); 787 default: 788 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 789 } 790 } 791 792long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)()) 793 { 794 switch(cmd) 795 { 796 default: 797 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 798 } 799 } 800 801struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx) 802 { 803 return ctx->sessions; 804 } 805 806long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg) 807 { 808 long l; 809 810 switch (cmd) 811 { 812 case SSL_CTRL_GET_READ_AHEAD: 813 return(ctx->read_ahead); 814 case SSL_CTRL_SET_READ_AHEAD: 815 l=ctx->read_ahead; 816 ctx->read_ahead=larg; 817 return(l); 818 819 case SSL_CTRL_SET_SESS_CACHE_SIZE: 820 l=ctx->session_cache_size; 821 ctx->session_cache_size=larg; 822 return(l); 823 case SSL_CTRL_GET_SESS_CACHE_SIZE: 824 return(ctx->session_cache_size); 825 case SSL_CTRL_SET_SESS_CACHE_MODE: 826 l=ctx->session_cache_mode; 827 ctx->session_cache_mode=larg; 828 return(l); 829 case SSL_CTRL_GET_SESS_CACHE_MODE: 830 return(ctx->session_cache_mode); 831 832 case SSL_CTRL_SESS_NUMBER: 833 return(ctx->sessions->num_items); 834 case SSL_CTRL_SESS_CONNECT: 835 return(ctx->stats.sess_connect); 836 case SSL_CTRL_SESS_CONNECT_GOOD: 837 return(ctx->stats.sess_connect_good); 838 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 839 return(ctx->stats.sess_connect_renegotiate); 840 case SSL_CTRL_SESS_ACCEPT: 841 return(ctx->stats.sess_accept); 842 case SSL_CTRL_SESS_ACCEPT_GOOD: 843 return(ctx->stats.sess_accept_good); 844 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 845 return(ctx->stats.sess_accept_renegotiate); 846 case SSL_CTRL_SESS_HIT: 847 return(ctx->stats.sess_hit); 848 case SSL_CTRL_SESS_CB_HIT: 849 return(ctx->stats.sess_cb_hit); 850 case SSL_CTRL_SESS_MISSES: 851 return(ctx->stats.sess_miss); 852 case SSL_CTRL_SESS_TIMEOUTS: 853 return(ctx->stats.sess_timeout); 854 case SSL_CTRL_SESS_CACHE_FULL: 855 return(ctx->stats.sess_cache_full); 856 case SSL_CTRL_OPTIONS: 857 return(ctx->options|=larg); 858 case SSL_CTRL_MODE: 859 return(ctx->mode|=larg); 860 default: 861 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 862 } 863 } 864 865long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)()) 866 { 867 switch(cmd) 868 { 869 default: 870 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 871 } 872 } 873 874int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b) 875 { 876 long l; 877 878 l=a->id-b->id; 879 if (l == 0L) 880 return(0); 881 else 882 return((l > 0)?1:-1); 883 } 884 885int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp) 886 { 887 long l; 888 889 l=(*ap)->id-(*bp)->id; 890 if (l == 0L) 891 return(0); 892 else 893 return((l > 0)?1:-1); 894 } 895 896/** return a STACK of the ciphers available for the SSL and in order of 897 * preference */ 898STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s) 899 { 900 if ((s != NULL) && (s->cipher_list != NULL)) 901 { 902 return(s->cipher_list); 903 } 904 else if ((s->ctx != NULL) && 905 (s->ctx->cipher_list != NULL)) 906 { 907 return(s->ctx->cipher_list); 908 } 909 return(NULL); 910 } 911 912/** return a STACK of the ciphers available for the SSL and in order of 913 * algorithm id */ 914STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 915 { 916 if ((s != NULL) && (s->cipher_list_by_id != NULL)) 917 { 918 return(s->cipher_list_by_id); 919 } 920 else if ((s != NULL) && (s->ctx != NULL) && 921 (s->ctx->cipher_list_by_id != NULL)) 922 { 923 return(s->ctx->cipher_list_by_id); 924 } 925 return(NULL); 926 } 927 928/** The old interface to get the same thing as SSL_get_ciphers() */ 929const char *SSL_get_cipher_list(SSL *s,int n) 930 { 931 SSL_CIPHER *c; 932 STACK_OF(SSL_CIPHER) *sk; 933 934 if (s == NULL) return(NULL); 935 sk=SSL_get_ciphers(s); 936 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 937 return(NULL); 938 c=sk_SSL_CIPHER_value(sk,n); 939 if (c == NULL) return(NULL); 940 return(c->name); 941 } 942 943/** specify the ciphers to be used by default by the SSL_CTX */ 944int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 945 { 946 STACK_OF(SSL_CIPHER) *sk; 947 948 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 949 &ctx->cipher_list_by_id,str); 950/* XXXX */ 951 return((sk == NULL)?0:1); 952 } 953 954/** specify the ciphers to be used by the SSL */ 955int SSL_set_cipher_list(SSL *s,const char *str) 956 { 957 STACK_OF(SSL_CIPHER) *sk; 958 959 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 960 &s->cipher_list_by_id,str); 961/* XXXX */ 962 return((sk == NULL)?0:1); 963 } 964 965/* works well for SSLv2, not so good for SSLv3 */ 966char *SSL_get_shared_ciphers(SSL *s,char *buf,int len) 967 { 968 char *p; 969 const char *cp; 970 STACK_OF(SSL_CIPHER) *sk; 971 SSL_CIPHER *c; 972 int i; 973 974 if ((s->session == NULL) || (s->session->ciphers == NULL) || 975 (len < 2)) 976 return(NULL); 977 978 p=buf; 979 sk=s->session->ciphers; 980 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 981 { 982 /* Decrement for either the ':' or a '\0' */ 983 len--; 984 c=sk_SSL_CIPHER_value(sk,i); 985 for (cp=c->name; *cp; ) 986 { 987 if (len-- == 0) 988 { 989 *p='\0'; 990 return(buf); 991 } 992 else 993 *(p++)= *(cp++); 994 } 995 *(p++)=':'; 996 } 997 p[-1]='\0'; 998 return(buf); 999 } 1000 1001int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p) 1002 { 1003 int i,j=0; 1004 SSL_CIPHER *c; 1005 unsigned char *q; 1006 1007 if (sk == NULL) return(0); 1008 q=p; 1009 1010 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1011 { 1012 c=sk_SSL_CIPHER_value(sk,i); 1013 j=ssl_put_cipher_by_char(s,c,p); 1014 p+=j; 1015 } 1016 return(p-q); 1017 } 1018 1019STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1020 STACK_OF(SSL_CIPHER) **skp) 1021 { 1022 SSL_CIPHER *c; 1023 STACK_OF(SSL_CIPHER) *sk; 1024 int i,n; 1025 1026 n=ssl_put_cipher_by_char(s,NULL,NULL); 1027 if ((num%n) != 0) 1028 { 1029 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1030 return(NULL); 1031 } 1032 if ((skp == NULL) || (*skp == NULL)) 1033 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */ 1034 else 1035 { 1036 sk= *skp; 1037 sk_SSL_CIPHER_zero(sk); 1038 } 1039 1040 for (i=0; i<num; i+=n) 1041 { 1042 c=ssl_get_cipher_by_char(s,p); 1043 p+=n; 1044 if (c != NULL) 1045 { 1046 if (!sk_SSL_CIPHER_push(sk,c)) 1047 { 1048 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1049 goto err; 1050 } 1051 } 1052 } 1053 1054 if (skp != NULL) 1055 *skp=sk; 1056 return(sk); 1057err: 1058 if ((skp == NULL) || (*skp == NULL)) 1059 sk_SSL_CIPHER_free(sk); 1060 return(NULL); 1061 } 1062 1063unsigned long SSL_SESSION_hash(SSL_SESSION *a) 1064 { 1065 unsigned long l; 1066 1067 l=(unsigned long) 1068 ((unsigned int) a->session_id[0] )| 1069 ((unsigned int) a->session_id[1]<< 8L)| 1070 ((unsigned long)a->session_id[2]<<16L)| 1071 ((unsigned long)a->session_id[3]<<24L); 1072 return(l); 1073 } 1074 1075int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b) 1076 { 1077 if (a->ssl_version != b->ssl_version) 1078 return(1); 1079 if (a->session_id_length != b->session_id_length) 1080 return(1); 1081 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1082 } 1083 1084SSL_CTX *SSL_CTX_new(SSL_METHOD *meth) 1085 { 1086 SSL_CTX *ret=NULL; 1087 1088 if (meth == NULL) 1089 { 1090 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1091 return(NULL); 1092 } 1093 1094 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1095 { 1096 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1097 goto err; 1098 } 1099 ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX)); 1100 if (ret == NULL) 1101 goto err; 1102 1103 memset(ret,0,sizeof(SSL_CTX)); 1104 1105 ret->method=meth; 1106 1107 ret->cert_store=NULL; 1108 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1109 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1110 ret->session_cache_head=NULL; 1111 ret->session_cache_tail=NULL; 1112 1113 /* We take the system default */ 1114 ret->session_timeout=meth->get_timeout(); 1115 1116 ret->new_session_cb=NULL; 1117 ret->remove_session_cb=NULL; 1118 ret->get_session_cb=NULL; 1119 1120 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1121 1122 ret->references=1; 1123 ret->quiet_shutdown=0; 1124 1125/* ret->cipher=NULL;*/ 1126/* ret->s2->challenge=NULL; 1127 ret->master_key=NULL; 1128 ret->key_arg=NULL; 1129 ret->s2->conn_id=NULL; */ 1130 1131 ret->info_callback=NULL; 1132 1133 ret->app_verify_callback=NULL; 1134 ret->app_verify_arg=NULL; 1135 1136 ret->read_ahead=0; 1137 ret->verify_mode=SSL_VERIFY_NONE; 1138 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1139 ret->default_verify_callback=NULL; 1140 if ((ret->cert=ssl_cert_new()) == NULL) 1141 goto err; 1142 1143 ret->default_passwd_callback=NULL; 1144 ret->default_passwd_callback_userdata=NULL; 1145 ret->client_cert_cb=NULL; 1146 1147 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp); 1148 if (ret->sessions == NULL) goto err; 1149 ret->cert_store=X509_STORE_new(); 1150 if (ret->cert_store == NULL) goto err; 1151 1152 ssl_create_cipher_list(ret->method, 1153 &ret->cipher_list,&ret->cipher_list_by_id, 1154 SSL_DEFAULT_CIPHER_LIST); 1155 if (ret->cipher_list == NULL 1156 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1157 { 1158 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1159 goto err2; 1160 } 1161 1162 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1163 { 1164 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1165 goto err2; 1166 } 1167 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1168 { 1169 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1170 goto err2; 1171 } 1172 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1173 { 1174 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1175 goto err2; 1176 } 1177 1178 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1179 goto err; 1180 1181 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data); 1182 1183 ret->extra_certs=NULL; 1184 ret->comp_methods=SSL_COMP_get_compression_methods(); 1185 1186 return(ret); 1187err: 1188 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1189err2: 1190 if (ret != NULL) SSL_CTX_free(ret); 1191 return(NULL); 1192 } 1193 1194static void SSL_COMP_free(SSL_COMP *comp) 1195 { Free(comp); } 1196 1197void SSL_CTX_free(SSL_CTX *a) 1198 { 1199 int i; 1200 1201 if (a == NULL) return; 1202 1203 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1204#ifdef REF_PRINT 1205 REF_PRINT("SSL_CTX",a); 1206#endif 1207 if (i > 0) return; 1208#ifdef REF_CHECK 1209 if (i < 0) 1210 { 1211 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1212 abort(); /* ok */ 1213 } 1214#endif 1215 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data); 1216 1217 if (a->sessions != NULL) 1218 { 1219 SSL_CTX_flush_sessions(a,0); 1220 lh_free(a->sessions); 1221 } 1222 if (a->cert_store != NULL) 1223 X509_STORE_free(a->cert_store); 1224 if (a->cipher_list != NULL) 1225 sk_SSL_CIPHER_free(a->cipher_list); 1226 if (a->cipher_list_by_id != NULL) 1227 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1228 if (a->cert != NULL) 1229 ssl_cert_free(a->cert); 1230 if (a->client_CA != NULL) 1231 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1232 if (a->extra_certs != NULL) 1233 sk_X509_pop_free(a->extra_certs,X509_free); 1234 if (a->comp_methods != NULL) 1235 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1236 Free(a); 1237 } 1238 1239void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1240 { 1241 ctx->default_passwd_callback=cb; 1242 } 1243 1244void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1245 { 1246 ctx->default_passwd_callback_userdata=u; 1247 } 1248 1249void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg) 1250 { 1251 /* now 1252 * int (*cb)(X509_STORE_CTX *), 1253 * but should be 1254 * int (*cb)(X509_STORE_CTX *, void *arg) 1255 */ 1256 ctx->app_verify_callback=cb; 1257 ctx->app_verify_arg=arg; /* never used */ 1258 } 1259 1260void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1261 { 1262 ctx->verify_mode=mode; 1263 ctx->default_verify_callback=cb; 1264 /* This needs cleaning up EAY EAY EAY */ 1265 X509_STORE_set_verify_cb_func(ctx->cert_store,cb); 1266 } 1267 1268void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1269 { 1270 ctx->verify_depth=depth; 1271 } 1272 1273void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) 1274 { 1275 CERT_PKEY *cpk; 1276 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1277 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1278 int rsa_tmp_export,dh_tmp_export,kl; 1279 unsigned long mask,emask; 1280 1281 if (c == NULL) return; 1282 1283 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1284 1285#ifndef NO_RSA 1286 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1287 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1288 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1289#else 1290 rsa_tmp=rsa_tmp_export=0; 1291#endif 1292#ifndef NO_DH 1293 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1294 dh_tmp_export=(c->dh_tmp_cb != NULL || 1295 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1296#else 1297 dh_tmp=dh_tmp_export=0; 1298#endif 1299 1300 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1301 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1302 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1303 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1304 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1305 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1306 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1307 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1308 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1309 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1310 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1311/* FIX THIS EAY EAY EAY */ 1312 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1313 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1314 1315 mask=0; 1316 emask=0; 1317 1318#ifdef CIPHER_DEBUG 1319 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1320 rsa_tmp,rsa_tmp_export,dh_tmp, 1321 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1322#endif 1323 1324 if (rsa_enc || (rsa_tmp && rsa_sign)) 1325 mask|=SSL_kRSA; 1326 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1327 emask|=SSL_kRSA; 1328 1329#if 0 1330 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1331 if ( (dh_tmp || dh_rsa || dh_dsa) && 1332 (rsa_enc || rsa_sign || dsa_sign)) 1333 mask|=SSL_kEDH; 1334 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1335 (rsa_enc || rsa_sign || dsa_sign)) 1336 emask|=SSL_kEDH; 1337#endif 1338 1339 if (dh_tmp_export) 1340 emask|=SSL_kEDH; 1341 1342 if (dh_tmp) 1343 mask|=SSL_kEDH; 1344 1345 if (dh_rsa) mask|=SSL_kDHr; 1346 if (dh_rsa_export) emask|=SSL_kDHr; 1347 1348 if (dh_dsa) mask|=SSL_kDHd; 1349 if (dh_dsa_export) emask|=SSL_kDHd; 1350 1351 if (rsa_enc || rsa_sign) 1352 { 1353 mask|=SSL_aRSA; 1354 emask|=SSL_aRSA; 1355 } 1356 1357 if (dsa_sign) 1358 { 1359 mask|=SSL_aDSS; 1360 emask|=SSL_aDSS; 1361 } 1362 1363 mask|=SSL_aNULL; 1364 emask|=SSL_aNULL; 1365 1366 c->mask=mask; 1367 c->export_mask=emask; 1368 c->valid=1; 1369 } 1370 1371/* THIS NEEDS CLEANING UP */ 1372X509 *ssl_get_server_send_cert(SSL *s) 1373 { 1374 unsigned long alg,mask,kalg; 1375 CERT *c; 1376 int i,is_export; 1377 1378 c=s->cert; 1379 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 1380 alg=s->s3->tmp.new_cipher->algorithms; 1381 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 1382 mask=is_export?c->export_mask:c->mask; 1383 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1384 1385 if (kalg & SSL_kDHr) 1386 i=SSL_PKEY_DH_RSA; 1387 else if (kalg & SSL_kDHd) 1388 i=SSL_PKEY_DH_DSA; 1389 else if (kalg & SSL_aDSS) 1390 i=SSL_PKEY_DSA_SIGN; 1391 else if (kalg & SSL_aRSA) 1392 { 1393 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1394 i=SSL_PKEY_RSA_SIGN; 1395 else 1396 i=SSL_PKEY_RSA_ENC; 1397 } 1398 else /* if (kalg & SSL_aNULL) */ 1399 { 1400 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR); 1401 return(NULL); 1402 } 1403 if (c->pkeys[i].x509 == NULL) return(NULL); 1404 return(c->pkeys[i].x509); 1405 } 1406 1407EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher) 1408 { 1409 unsigned long alg; 1410 CERT *c; 1411 1412 alg=cipher->algorithms; 1413 c=s->cert; 1414 1415 if ((alg & SSL_aDSS) && 1416 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 1417 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 1418 else if (alg & SSL_aRSA) 1419 { 1420 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 1421 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 1422 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 1423 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 1424 else 1425 return(NULL); 1426 } 1427 else /* if (alg & SSL_aNULL) */ 1428 { 1429 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR); 1430 return(NULL); 1431 } 1432 } 1433 1434void ssl_update_cache(SSL *s,int mode) 1435 { 1436 int i; 1437 1438 /* If the session_id_length is 0, we are not supposed to cache it, 1439 * and it would be rather hard to do anyway :-) */ 1440 if (s->session->session_id_length == 0) return; 1441 1442 if ((s->ctx->session_cache_mode & mode) 1443 && (!s->hit) 1444 && SSL_CTX_add_session(s->ctx,s->session) 1445 && (s->ctx->new_session_cb != NULL)) 1446 { 1447 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 1448 if (!s->ctx->new_session_cb(s,s->session)) 1449 SSL_SESSION_free(s->session); 1450 } 1451 1452 /* auto flush every 255 connections */ 1453 i=s->ctx->session_cache_mode; 1454 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 1455 ((i & mode) == mode)) 1456 { 1457 if ( (((mode & SSL_SESS_CACHE_CLIENT) 1458 ?s->ctx->stats.sess_connect_good 1459 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff) 1460 { 1461 SSL_CTX_flush_sessions(s->ctx,time(NULL)); 1462 } 1463 } 1464 } 1465 1466SSL_METHOD *SSL_get_ssl_method(SSL *s) 1467 { 1468 return(s->method); 1469 } 1470 1471int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth) 1472 { 1473 int conn= -1; 1474 int ret=1; 1475 1476 if (s->method != meth) 1477 { 1478 if (s->handshake_func != NULL) 1479 conn=(s->handshake_func == s->method->ssl_connect); 1480 1481 if (s->method->version == meth->version) 1482 s->method=meth; 1483 else 1484 { 1485 s->method->ssl_free(s); 1486 s->method=meth; 1487 ret=s->method->ssl_new(s); 1488 } 1489 1490 if (conn == 1) 1491 s->handshake_func=meth->ssl_connect; 1492 else if (conn == 0) 1493 s->handshake_func=meth->ssl_accept; 1494 } 1495 return(ret); 1496 } 1497 1498int SSL_get_error(SSL *s,int i) 1499 { 1500 int reason; 1501 unsigned long l; 1502 BIO *bio; 1503 1504 if (i > 0) return(SSL_ERROR_NONE); 1505 1506 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 1507 * etc, where we do encode the error */ 1508 if ((l=ERR_peek_error()) != 0) 1509 { 1510 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 1511 return(SSL_ERROR_SYSCALL); 1512 else 1513 return(SSL_ERROR_SSL); 1514 } 1515 1516 if ((i < 0) && SSL_want_read(s)) 1517 { 1518 bio=SSL_get_rbio(s); 1519 if (BIO_should_read(bio)) 1520 return(SSL_ERROR_WANT_READ); 1521 else if (BIO_should_write(bio)) 1522 /* This one doesn't make too much sense ... We never try 1523 * to write to the rbio, and an application program where 1524 * rbio and wbio are separate couldn't even know what it 1525 * should wait for. 1526 * However if we ever set s->rwstate incorrectly 1527 * (so that we have SSL_want_read(s) instead of 1528 * SSL_want_write(s)) and rbio and wbio *are* the same, 1529 * this test works around that bug; so it might be safer 1530 * to keep it. */ 1531 return(SSL_ERROR_WANT_WRITE); 1532 else if (BIO_should_io_special(bio)) 1533 { 1534 reason=BIO_get_retry_reason(bio); 1535 if (reason == BIO_RR_CONNECT) 1536 return(SSL_ERROR_WANT_CONNECT); 1537 else 1538 return(SSL_ERROR_SYSCALL); /* unknown */ 1539 } 1540 } 1541 1542 if ((i < 0) && SSL_want_write(s)) 1543 { 1544 bio=SSL_get_wbio(s); 1545 if (BIO_should_write(bio)) 1546 return(SSL_ERROR_WANT_WRITE); 1547 else if (BIO_should_read(bio)) 1548 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 1549 return(SSL_ERROR_WANT_READ); 1550 else if (BIO_should_io_special(bio)) 1551 { 1552 reason=BIO_get_retry_reason(bio); 1553 if (reason == BIO_RR_CONNECT) 1554 return(SSL_ERROR_WANT_CONNECT); 1555 else 1556 return(SSL_ERROR_SYSCALL); 1557 } 1558 } 1559 if ((i < 0) && SSL_want_x509_lookup(s)) 1560 { 1561 return(SSL_ERROR_WANT_X509_LOOKUP); 1562 } 1563 1564 if (i == 0) 1565 { 1566 if (s->version == SSL2_VERSION) 1567 { 1568 /* assume it is the socket being closed */ 1569 return(SSL_ERROR_ZERO_RETURN); 1570 } 1571 else 1572 { 1573 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 1574 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 1575 return(SSL_ERROR_ZERO_RETURN); 1576 } 1577 } 1578 return(SSL_ERROR_SYSCALL); 1579 } 1580 1581int SSL_do_handshake(SSL *s) 1582 { 1583 int ret=1; 1584 1585 if (s->handshake_func == NULL) 1586 { 1587 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 1588 return(-1); 1589 } 1590 1591 s->method->ssl_renegotiate_check(s); 1592 1593 if (SSL_in_init(s) || SSL_in_before(s)) 1594 { 1595 ret=s->handshake_func(s); 1596 } 1597 return(ret); 1598 } 1599 1600/* For the next 2 functions, SSL_clear() sets shutdown and so 1601 * one of these calls will reset it */ 1602void SSL_set_accept_state(SSL *s) 1603 { 1604 s->server=1; 1605 s->shutdown=0; 1606 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 1607 s->handshake_func=s->method->ssl_accept; 1608 /* clear the current cipher */ 1609 ssl_clear_cipher_ctx(s); 1610 } 1611 1612void SSL_set_connect_state(SSL *s) 1613 { 1614 s->server=0; 1615 s->shutdown=0; 1616 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 1617 s->handshake_func=s->method->ssl_connect; 1618 /* clear the current cipher */ 1619 ssl_clear_cipher_ctx(s); 1620 } 1621 1622int ssl_undefined_function(SSL *s) 1623 { 1624 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1625 return(0); 1626 } 1627 1628SSL_METHOD *ssl_bad_method(int ver) 1629 { 1630 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1631 return(NULL); 1632 } 1633 1634const char *SSL_get_version(SSL *s) 1635 { 1636 if (s->version == TLS1_VERSION) 1637 return("TLSv1"); 1638 else if (s->version == SSL3_VERSION) 1639 return("SSLv3"); 1640 else if (s->version == SSL2_VERSION) 1641 return("SSLv2"); 1642 else 1643 return("unknown"); 1644 } 1645 1646SSL *SSL_dup(SSL *s) 1647 { 1648 STACK_OF(X509_NAME) *sk; 1649 X509_NAME *xn; 1650 SSL *ret; 1651 int i; 1652 1653 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 1654 return(NULL); 1655 1656 if (s->session != NULL) 1657 { 1658 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 1659 SSL_copy_session_id(ret,s); 1660 } 1661 else 1662 { 1663 /* No session has been established yet, so we have to expect 1664 * that s->cert or ret->cert will be changed later -- 1665 * they should not both point to the same object, 1666 * and thus we can't use SSL_copy_session_id. */ 1667 1668 ret->method = s->method; 1669 ret->method->ssl_new(ret); 1670 1671 if (s->cert != NULL) 1672 { 1673 ret->cert = ssl_cert_dup(s->cert); 1674 if (ret->cert == NULL) 1675 goto err; 1676 } 1677 1678 SSL_set_session_id_context(ret, 1679 s->sid_ctx, s->sid_ctx_length); 1680 } 1681 1682 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 1683 SSL_set_verify(ret,SSL_get_verify_mode(s), 1684 SSL_get_verify_callback(s)); 1685 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 1686 1687 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 1688 1689 ret->debug=s->debug; 1690 ret->options=s->options; 1691 1692 /* copy app data, a little dangerous perhaps */ 1693 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data)) 1694 goto err; 1695 1696 /* setup rbio, and wbio */ 1697 if (s->rbio != NULL) 1698 { 1699 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 1700 goto err; 1701 } 1702 if (s->wbio != NULL) 1703 { 1704 if (s->wbio != s->rbio) 1705 { 1706 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 1707 goto err; 1708 } 1709 else 1710 ret->wbio=ret->rbio; 1711 } 1712 1713 /* dup the cipher_list and cipher_list_by_id stacks */ 1714 if (s->cipher_list != NULL) 1715 { 1716 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 1717 goto err; 1718 } 1719 if (s->cipher_list_by_id != NULL) 1720 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 1721 == NULL) 1722 goto err; 1723 1724 /* Dup the client_CA list */ 1725 if (s->client_CA != NULL) 1726 { 1727 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 1728 ret->client_CA=sk; 1729 for (i=0; i<sk_X509_NAME_num(sk); i++) 1730 { 1731 xn=sk_X509_NAME_value(sk,i); 1732 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 1733 { 1734 X509_NAME_free(xn); 1735 goto err; 1736 } 1737 } 1738 } 1739 1740 ret->shutdown=s->shutdown; 1741 ret->state=s->state; 1742 ret->handshake_func=s->handshake_func; 1743 ret->server=s->server; 1744 1745 if (0) 1746 { 1747err: 1748 if (ret != NULL) SSL_free(ret); 1749 ret=NULL; 1750 } 1751 return(ret); 1752 } 1753 1754void ssl_clear_cipher_ctx(SSL *s) 1755 { 1756 if (s->enc_read_ctx != NULL) 1757 { 1758 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 1759 Free(s->enc_read_ctx); 1760 s->enc_read_ctx=NULL; 1761 } 1762 if (s->enc_write_ctx != NULL) 1763 { 1764 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 1765 Free(s->enc_write_ctx); 1766 s->enc_write_ctx=NULL; 1767 } 1768 if (s->expand != NULL) 1769 { 1770 COMP_CTX_free(s->expand); 1771 s->expand=NULL; 1772 } 1773 if (s->compress != NULL) 1774 { 1775 COMP_CTX_free(s->compress); 1776 s->compress=NULL; 1777 } 1778 } 1779 1780/* Fix this function so that it takes an optional type parameter */ 1781X509 *SSL_get_certificate(SSL *s) 1782 { 1783 if (s->cert != NULL) 1784 return(s->cert->key->x509); 1785 else 1786 return(NULL); 1787 } 1788 1789/* Fix this function so that it takes an optional type parameter */ 1790EVP_PKEY *SSL_get_privatekey(SSL *s) 1791 { 1792 if (s->cert != NULL) 1793 return(s->cert->key->privatekey); 1794 else 1795 return(NULL); 1796 } 1797 1798SSL_CIPHER *SSL_get_current_cipher(SSL *s) 1799 { 1800 if ((s->session != NULL) && (s->session->cipher != NULL)) 1801 return(s->session->cipher); 1802 return(NULL); 1803 } 1804 1805int ssl_init_wbio_buffer(SSL *s,int push) 1806 { 1807 BIO *bbio; 1808 1809 if (s->bbio == NULL) 1810 { 1811 bbio=BIO_new(BIO_f_buffer()); 1812 if (bbio == NULL) return(0); 1813 s->bbio=bbio; 1814 } 1815 else 1816 { 1817 bbio=s->bbio; 1818 if (s->bbio == s->wbio) 1819 s->wbio=BIO_pop(s->wbio); 1820 } 1821 (void)BIO_reset(bbio); 1822/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 1823 if (!BIO_set_read_buffer_size(bbio,1)) 1824 { 1825 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 1826 return(0); 1827 } 1828 if (push) 1829 { 1830 if (s->wbio != bbio) 1831 s->wbio=BIO_push(bbio,s->wbio); 1832 } 1833 else 1834 { 1835 if (s->wbio == bbio) 1836 s->wbio=BIO_pop(bbio); 1837 } 1838 return(1); 1839 } 1840 1841void ssl_free_wbio_buffer(SSL *s) 1842 { 1843 BIO *under; 1844 1845 if (s->bbio == NULL) return; 1846 1847 if (s->bbio == s->wbio) 1848 { 1849 /* remove buffering */ 1850 under=BIO_pop(s->wbio); 1851 if (under != NULL) 1852 s->wbio=under; 1853 else 1854 abort(); /* ok */ 1855 } 1856 BIO_free(s->bbio); 1857 s->bbio=NULL; 1858 } 1859 1860void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 1861 { 1862 ctx->quiet_shutdown=mode; 1863 } 1864 1865int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx) 1866 { 1867 return(ctx->quiet_shutdown); 1868 } 1869 1870void SSL_set_quiet_shutdown(SSL *s,int mode) 1871 { 1872 s->quiet_shutdown=mode; 1873 } 1874 1875int SSL_get_quiet_shutdown(SSL *s) 1876 { 1877 return(s->quiet_shutdown); 1878 } 1879 1880void SSL_set_shutdown(SSL *s,int mode) 1881 { 1882 s->shutdown=mode; 1883 } 1884 1885int SSL_get_shutdown(SSL *s) 1886 { 1887 return(s->shutdown); 1888 } 1889 1890int SSL_version(SSL *s) 1891 { 1892 return(s->version); 1893 } 1894 1895SSL_CTX *SSL_get_SSL_CTX(SSL *ssl) 1896 { 1897 return(ssl->ctx); 1898 } 1899 1900#ifndef NO_STDIO 1901int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 1902 { 1903 return(X509_STORE_set_default_paths(ctx->cert_store)); 1904 } 1905 1906int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 1907 const char *CApath) 1908 { 1909 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 1910 } 1911#endif 1912 1913void SSL_set_info_callback(SSL *ssl,void (*cb)()) 1914 { 1915 ssl->info_callback=cb; 1916 } 1917 1918void (*SSL_get_info_callback(SSL *ssl))(void) 1919 { 1920 return((void (*)())ssl->info_callback); 1921 } 1922 1923int SSL_state(SSL *ssl) 1924 { 1925 return(ssl->state); 1926 } 1927 1928void SSL_set_verify_result(SSL *ssl,long arg) 1929 { 1930 ssl->verify_result=arg; 1931 } 1932 1933long SSL_get_verify_result(SSL *ssl) 1934 { 1935 return(ssl->verify_result); 1936 } 1937 1938int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 1939 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 1940 { 1941 ssl_meth_num++; 1942 return(CRYPTO_get_ex_new_index(ssl_meth_num-1, 1943 &ssl_meth,argl,argp,new_func,dup_func,free_func)); 1944 } 1945 1946int SSL_set_ex_data(SSL *s,int idx,void *arg) 1947 { 1948 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1949 } 1950 1951void *SSL_get_ex_data(SSL *s,int idx) 1952 { 1953 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1954 } 1955 1956int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 1957 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 1958 { 1959 ssl_ctx_meth_num++; 1960 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1, 1961 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func)); 1962 } 1963 1964int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 1965 { 1966 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1967 } 1968 1969void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx) 1970 { 1971 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1972 } 1973 1974int ssl_ok(SSL *s) 1975 { 1976 return(1); 1977 } 1978 1979X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx) 1980 { 1981 return(ctx->cert_store); 1982 } 1983 1984void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 1985 { 1986 if (ctx->cert_store != NULL) 1987 X509_STORE_free(ctx->cert_store); 1988 ctx->cert_store=store; 1989 } 1990 1991int SSL_want(SSL *s) 1992 { 1993 return(s->rwstate); 1994 } 1995 1996/*! 1997 * \brief Set the callback for generating temporary RSA keys. 1998 * \param ctx the SSL context. 1999 * \param cb the callback 2000 */ 2001 2002#ifndef NO_RSA 2003void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2004 int is_export, 2005 int keylength)) 2006 { 2007 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2008 } 2009 2010void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2011 int is_export, 2012 int keylength)) 2013 { 2014 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2015 } 2016#endif 2017 2018#ifdef DOXYGEN 2019/*! 2020 * \brief The RSA temporary key callback function. 2021 * \param ssl the SSL session. 2022 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2023 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2024 * of the required key in bits. 2025 * \return the temporary RSA key. 2026 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2027 */ 2028 2029RSA *cb(SSL *ssl,int is_export,int keylength) 2030 {} 2031#endif 2032 2033/*! 2034 * \brief Set the callback for generating temporary DH keys. 2035 * \param ctx the SSL context. 2036 * \param dh the callback 2037 */ 2038 2039#ifndef NO_DH 2040void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2041 int keylength)) 2042 { 2043 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2044 } 2045 2046void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2047 int keylength)) 2048 { 2049 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2050 } 2051#endif 2052 2053#if defined(_WINDLL) && defined(WIN16) 2054#include "../crypto/bio/bss_file.c" 2055#endif 2056 2057IMPLEMENT_STACK_OF(SSL_CIPHER) 2058IMPLEMENT_STACK_OF(SSL_COMP) 2059