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 62 #include <assert.h> 63 #include <stdio.h> 64 #include <openssl/objects.h> 65 #include <openssl/lhash.h> 66 #include <openssl/x509v3.h> 67 #include "ssl_locl.h" 68 69 const char *SSL_version_str=OPENSSL_VERSION_TEXT; 70 71 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_meth=NULL; 72 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_ctx_meth=NULL; 73 static int ssl_meth_num=0; 74 static int ssl_ctx_meth_num=0; 75 76 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={ 77 /* evil casts, but these functions are only called if there's a library bug */ 78 (int (*)(SSL *,int))ssl_undefined_function, 79 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, 80 ssl_undefined_function, 81 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function, 82 (int (*)(SSL*, int))ssl_undefined_function, 83 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function 84 }; 85 86 int SSL_clear(SSL *s) 87 { 88 int state; 89 90 if (s->method == NULL) 91 { 92 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED); 93 return(0); 94 } 95 96 s->error=0; 97 s->hit=0; 98 s->shutdown=0; 99 100 #if 0 /* Disabled since version 1.10 of this file (early return not 101 * needed because SSL_clear is not called when doing renegotiation) */ 102 /* This is set if we are doing dynamic renegotiation so keep 103 * the old cipher. It is sort of a SSL_clear_lite :-) */ 104 if (s->new_session) return(1); 105 #else 106 if (s->new_session) 107 { 108 SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR); 109 return 0; 110 } 111 #endif 112 113 state=s->state; /* Keep to check if we throw away the session-id */ 114 s->type=0; 115 116 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT); 117 118 s->version=s->method->version; 119 s->client_version=s->version; 120 s->rwstate=SSL_NOTHING; 121 s->rstate=SSL_ST_READ_HEADER; 122 s->read_ahead=s->ctx->read_ahead; 123 124 if (s->init_buf != NULL) 125 { 126 BUF_MEM_free(s->init_buf); 127 s->init_buf=NULL; 128 } 129 130 ssl_clear_cipher_ctx(s); 131 132 if (ssl_clear_bad_session(s)) 133 { 134 SSL_SESSION_free(s->session); 135 s->session=NULL; 136 } 137 138 s->first_packet=0; 139 140 #if 1 141 /* Check to see if we were changed into a different method, if 142 * so, revert back if we are not doing session-id reuse. */ 143 if ((s->session == NULL) && (s->method != s->ctx->method)) 144 { 145 s->method->ssl_free(s); 146 s->method=s->ctx->method; 147 if (!s->method->ssl_new(s)) 148 return(0); 149 } 150 else 151 #endif 152 s->method->ssl_clear(s); 153 return(1); 154 } 155 156 /** Used to change an SSL_CTXs default SSL method type */ 157 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth) 158 { 159 STACK_OF(SSL_CIPHER) *sk; 160 161 ctx->method=meth; 162 163 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list), 164 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST); 165 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) 166 { 167 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 168 return(0); 169 } 170 return(1); 171 } 172 173 SSL *SSL_new(SSL_CTX *ctx) 174 { 175 SSL *s; 176 177 if (ctx == NULL) 178 { 179 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX); 180 return(NULL); 181 } 182 if (ctx->method == NULL) 183 { 184 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 185 return(NULL); 186 } 187 188 s=(SSL *)OPENSSL_malloc(sizeof(SSL)); 189 if (s == NULL) goto err; 190 memset(s,0,sizeof(SSL)); 191 192 if (ctx->cert != NULL) 193 { 194 /* Earlier library versions used to copy the pointer to 195 * the CERT, not its contents; only when setting new 196 * parameters for the per-SSL copy, ssl_cert_new would be 197 * called (and the direct reference to the per-SSL_CTX 198 * settings would be lost, but those still were indirectly 199 * accessed for various purposes, and for that reason they 200 * used to be known as s->ctx->default_cert). 201 * Now we don't look at the SSL_CTX's CERT after having 202 * duplicated it once. */ 203 204 s->cert = ssl_cert_dup(ctx->cert); 205 if (s->cert == NULL) 206 goto err; 207 } 208 else 209 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 210 s->sid_ctx_length=ctx->sid_ctx_length; 211 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx)); 212 s->verify_mode=ctx->verify_mode; 213 s->verify_depth=ctx->verify_depth; 214 s->verify_callback=ctx->default_verify_callback; 215 s->purpose = ctx->purpose; 216 s->trust = ctx->trust; 217 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 218 s->ctx=ctx; 219 220 s->verify_result=X509_V_OK; 221 222 s->method=ctx->method; 223 224 if (!s->method->ssl_new(s)) 225 goto err; 226 227 s->quiet_shutdown=ctx->quiet_shutdown; 228 s->references=1; 229 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1; 230 s->options=ctx->options; 231 s->mode=ctx->mode; 232 SSL_clear(s); 233 234 CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data); 235 236 return(s); 237 err: 238 if (s != NULL) 239 { 240 if (s->cert != NULL) 241 ssl_cert_free(s->cert); 242 if (s->ctx != NULL) 243 SSL_CTX_free(s->ctx); /* decrement reference count */ 244 OPENSSL_free(s); 245 } 246 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE); 247 return(NULL); 248 } 249 250 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx, 251 unsigned int sid_ctx_len) 252 { 253 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 254 { 255 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 256 return 0; 257 } 258 ctx->sid_ctx_length=sid_ctx_len; 259 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len); 260 261 return 1; 262 } 263 264 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx, 265 unsigned int sid_ctx_len) 266 { 267 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 268 { 269 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 270 return 0; 271 } 272 ssl->sid_ctx_length=sid_ctx_len; 273 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len); 274 275 return 1; 276 } 277 278 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 279 { 280 if(X509_PURPOSE_get_by_id(purpose) == -1) { 281 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE); 282 return 0; 283 } 284 s->purpose = purpose; 285 return 1; 286 } 287 288 int SSL_set_purpose(SSL *s, int purpose) 289 { 290 if(X509_PURPOSE_get_by_id(purpose) == -1) { 291 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE); 292 return 0; 293 } 294 s->purpose = purpose; 295 return 1; 296 } 297 298 int SSL_CTX_set_trust(SSL_CTX *s, int trust) 299 { 300 if(X509_TRUST_get_by_id(trust) == -1) { 301 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST); 302 return 0; 303 } 304 s->trust = trust; 305 return 1; 306 } 307 308 int SSL_set_trust(SSL *s, int trust) 309 { 310 if(X509_TRUST_get_by_id(trust) == -1) { 311 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST); 312 return 0; 313 } 314 s->trust = trust; 315 return 1; 316 } 317 318 void SSL_free(SSL *s) 319 { 320 int i; 321 322 if(s == NULL) 323 return; 324 325 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL); 326 #ifdef REF_PRINT 327 REF_PRINT("SSL",s); 328 #endif 329 if (i > 0) return; 330 #ifdef REF_CHECK 331 if (i < 0) 332 { 333 fprintf(stderr,"SSL_free, bad reference count\n"); 334 abort(); /* ok */ 335 } 336 #endif 337 338 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data); 339 340 if (s->bbio != NULL) 341 { 342 /* If the buffering BIO is in place, pop it off */ 343 if (s->bbio == s->wbio) 344 { 345 s->wbio=BIO_pop(s->wbio); 346 } 347 BIO_free(s->bbio); 348 s->bbio=NULL; 349 } 350 if (s->rbio != NULL) 351 BIO_free_all(s->rbio); 352 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 353 BIO_free_all(s->wbio); 354 355 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf); 356 357 /* add extra stuff */ 358 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list); 359 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id); 360 361 /* Make the next call work :-) */ 362 if (s->session != NULL) 363 { 364 ssl_clear_bad_session(s); 365 SSL_SESSION_free(s->session); 366 } 367 368 ssl_clear_cipher_ctx(s); 369 370 if (s->cert != NULL) ssl_cert_free(s->cert); 371 /* Free up if allocated */ 372 373 if (s->ctx) SSL_CTX_free(s->ctx); 374 375 if (s->client_CA != NULL) 376 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free); 377 378 if (s->method != NULL) s->method->ssl_free(s); 379 380 OPENSSL_free(s); 381 } 382 383 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio) 384 { 385 /* If the output buffering BIO is still in place, remove it 386 */ 387 if (s->bbio != NULL) 388 { 389 if (s->wbio == s->bbio) 390 { 391 s->wbio=s->wbio->next_bio; 392 s->bbio->next_bio=NULL; 393 } 394 } 395 if ((s->rbio != NULL) && (s->rbio != rbio)) 396 BIO_free_all(s->rbio); 397 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 398 BIO_free_all(s->wbio); 399 s->rbio=rbio; 400 s->wbio=wbio; 401 } 402 403 BIO *SSL_get_rbio(SSL *s) 404 { return(s->rbio); } 405 406 BIO *SSL_get_wbio(SSL *s) 407 { return(s->wbio); } 408 409 int SSL_get_fd(SSL *s) 410 { 411 int ret= -1; 412 BIO *b,*r; 413 414 b=SSL_get_rbio(s); 415 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 416 if (r != NULL) 417 BIO_get_fd(r,&ret); 418 return(ret); 419 } 420 421 #ifndef NO_SOCK 422 int SSL_set_fd(SSL *s,int fd) 423 { 424 int ret=0; 425 BIO *bio=NULL; 426 427 bio=BIO_new(BIO_s_socket()); 428 429 if (bio == NULL) 430 { 431 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 432 goto err; 433 } 434 BIO_set_fd(bio,fd,BIO_NOCLOSE); 435 SSL_set_bio(s,bio,bio); 436 ret=1; 437 err: 438 return(ret); 439 } 440 441 int SSL_set_wfd(SSL *s,int fd) 442 { 443 int ret=0; 444 BIO *bio=NULL; 445 446 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 447 || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 448 { 449 bio=BIO_new(BIO_s_socket()); 450 451 if (bio == NULL) 452 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 453 BIO_set_fd(bio,fd,BIO_NOCLOSE); 454 SSL_set_bio(s,SSL_get_rbio(s),bio); 455 } 456 else 457 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 458 ret=1; 459 err: 460 return(ret); 461 } 462 463 int SSL_set_rfd(SSL *s,int fd) 464 { 465 int ret=0; 466 BIO *bio=NULL; 467 468 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 469 || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 470 { 471 bio=BIO_new(BIO_s_socket()); 472 473 if (bio == NULL) 474 { 475 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 476 goto err; 477 } 478 BIO_set_fd(bio,fd,BIO_NOCLOSE); 479 SSL_set_bio(s,bio,SSL_get_wbio(s)); 480 } 481 else 482 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 483 ret=1; 484 err: 485 return(ret); 486 } 487 #endif 488 489 490 /* return length of latest Finished message we sent, copy to 'buf' */ 491 size_t SSL_get_finished(SSL *s, void *buf, size_t count) 492 { 493 size_t ret = 0; 494 495 if (s->s3 != NULL) 496 { 497 ret = s->s3->tmp.finish_md_len; 498 if (count > ret) 499 count = ret; 500 memcpy(buf, s->s3->tmp.finish_md, count); 501 } 502 return ret; 503 } 504 505 /* return length of latest Finished message we expected, copy to 'buf' */ 506 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count) 507 { 508 size_t ret = 0; 509 510 if (s->s3 != NULL) 511 { 512 ret = s->s3->tmp.peer_finish_md_len; 513 if (count > ret) 514 count = ret; 515 memcpy(buf, s->s3->tmp.peer_finish_md, count); 516 } 517 return ret; 518 } 519 520 521 int SSL_get_verify_mode(SSL *s) 522 { 523 return(s->verify_mode); 524 } 525 526 int SSL_get_verify_depth(SSL *s) 527 { 528 return(s->verify_depth); 529 } 530 531 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *) 532 { 533 return(s->verify_callback); 534 } 535 536 int SSL_CTX_get_verify_mode(SSL_CTX *ctx) 537 { 538 return(ctx->verify_mode); 539 } 540 541 int SSL_CTX_get_verify_depth(SSL_CTX *ctx) 542 { 543 return(ctx->verify_depth); 544 } 545 546 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *) 547 { 548 return(ctx->default_verify_callback); 549 } 550 551 void SSL_set_verify(SSL *s,int mode, 552 int (*callback)(int ok,X509_STORE_CTX *ctx)) 553 { 554 s->verify_mode=mode; 555 if (callback != NULL) 556 s->verify_callback=callback; 557 } 558 559 void SSL_set_verify_depth(SSL *s,int depth) 560 { 561 s->verify_depth=depth; 562 } 563 564 void SSL_set_read_ahead(SSL *s,int yes) 565 { 566 s->read_ahead=yes; 567 } 568 569 int SSL_get_read_ahead(SSL *s) 570 { 571 return(s->read_ahead); 572 } 573 574 int SSL_pending(SSL *s) 575 { 576 return(s->method->ssl_pending(s)); 577 } 578 579 X509 *SSL_get_peer_certificate(SSL *s) 580 { 581 X509 *r; 582 583 if ((s == NULL) || (s->session == NULL)) 584 r=NULL; 585 else 586 r=s->session->peer; 587 588 if (r == NULL) return(r); 589 590 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 591 592 return(r); 593 } 594 595 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s) 596 { 597 STACK_OF(X509) *r; 598 599 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 600 r=NULL; 601 else 602 r=s->session->sess_cert->cert_chain; 603 604 /* If we are a client, cert_chain includes the peer's own 605 * certificate; if we are a server, it does not. */ 606 607 return(r); 608 } 609 610 /* Now in theory, since the calling process own 't' it should be safe to 611 * modify. We need to be able to read f without being hassled */ 612 void SSL_copy_session_id(SSL *t,SSL *f) 613 { 614 CERT *tmp; 615 616 /* Do we need to to SSL locking? */ 617 SSL_set_session(t,SSL_get_session(f)); 618 619 /* what if we are setup as SSLv2 but want to talk SSLv3 or 620 * vice-versa */ 621 if (t->method != f->method) 622 { 623 t->method->ssl_free(t); /* cleanup current */ 624 t->method=f->method; /* change method */ 625 t->method->ssl_new(t); /* setup new */ 626 } 627 628 tmp=t->cert; 629 if (f->cert != NULL) 630 { 631 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 632 t->cert=f->cert; 633 } 634 else 635 t->cert=NULL; 636 if (tmp != NULL) ssl_cert_free(tmp); 637 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length); 638 } 639 640 /* Fix this so it checks all the valid key/cert options */ 641 int SSL_CTX_check_private_key(SSL_CTX *ctx) 642 { 643 if ( (ctx == NULL) || 644 (ctx->cert == NULL) || 645 (ctx->cert->key->x509 == NULL)) 646 { 647 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 648 return(0); 649 } 650 if (ctx->cert->key->privatekey == NULL) 651 { 652 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 653 return(0); 654 } 655 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 656 } 657 658 /* Fix this function so that it takes an optional type parameter */ 659 int SSL_check_private_key(SSL *ssl) 660 { 661 if (ssl == NULL) 662 { 663 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 664 return(0); 665 } 666 if (ssl->cert == NULL) 667 { 668 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 669 return 0; 670 } 671 if (ssl->cert->key->x509 == NULL) 672 { 673 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 674 return(0); 675 } 676 if (ssl->cert->key->privatekey == NULL) 677 { 678 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 679 return(0); 680 } 681 return(X509_check_private_key(ssl->cert->key->x509, 682 ssl->cert->key->privatekey)); 683 } 684 685 int SSL_accept(SSL *s) 686 { 687 if (s->handshake_func == 0) 688 /* Not properly initialized yet */ 689 SSL_set_accept_state(s); 690 691 return(s->method->ssl_accept(s)); 692 } 693 694 int SSL_connect(SSL *s) 695 { 696 if (s->handshake_func == 0) 697 /* Not properly initialized yet */ 698 SSL_set_connect_state(s); 699 700 return(s->method->ssl_connect(s)); 701 } 702 703 long SSL_get_default_timeout(SSL *s) 704 { 705 return(s->method->get_timeout()); 706 } 707 708 int SSL_read(SSL *s,char *buf,int num) 709 { 710 if (s->handshake_func == 0) 711 { 712 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 713 return -1; 714 } 715 716 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 717 { 718 s->rwstate=SSL_NOTHING; 719 return(0); 720 } 721 return(s->method->ssl_read(s,buf,num)); 722 } 723 724 int SSL_peek(SSL *s,char *buf,int num) 725 { 726 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 727 { 728 return(0); 729 } 730 return(s->method->ssl_peek(s,buf,num)); 731 } 732 733 int SSL_write(SSL *s,const char *buf,int num) 734 { 735 if (s->handshake_func == 0) 736 { 737 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 738 return -1; 739 } 740 741 if (s->shutdown & SSL_SENT_SHUTDOWN) 742 { 743 s->rwstate=SSL_NOTHING; 744 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 745 return(-1); 746 } 747 return(s->method->ssl_write(s,buf,num)); 748 } 749 750 int SSL_shutdown(SSL *s) 751 { 752 /* Note that this function behaves differently from what one might 753 * expect. Return values are 0 for no success (yet), 754 * 1 for success; but calling it once is usually not enough, 755 * even if blocking I/O is used (see ssl3_shutdown). 756 */ 757 758 if (s->handshake_func == 0) 759 { 760 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 761 return -1; 762 } 763 764 if ((s != NULL) && !SSL_in_init(s)) 765 return(s->method->ssl_shutdown(s)); 766 else 767 return(1); 768 } 769 770 int SSL_renegotiate(SSL *s) 771 { 772 s->new_session=1; 773 return(s->method->ssl_renegotiate(s)); 774 } 775 776 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg) 777 { 778 long l; 779 780 switch (cmd) 781 { 782 case SSL_CTRL_GET_READ_AHEAD: 783 return(s->read_ahead); 784 case SSL_CTRL_SET_READ_AHEAD: 785 l=s->read_ahead; 786 s->read_ahead=larg; 787 return(l); 788 case SSL_CTRL_OPTIONS: 789 return(s->options|=larg); 790 case SSL_CTRL_MODE: 791 return(s->mode|=larg); 792 default: 793 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 794 } 795 } 796 797 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)()) 798 { 799 switch(cmd) 800 { 801 default: 802 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 803 } 804 } 805 806 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx) 807 { 808 return ctx->sessions; 809 } 810 811 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg) 812 { 813 long l; 814 815 switch (cmd) 816 { 817 case SSL_CTRL_GET_READ_AHEAD: 818 return(ctx->read_ahead); 819 case SSL_CTRL_SET_READ_AHEAD: 820 l=ctx->read_ahead; 821 ctx->read_ahead=larg; 822 return(l); 823 824 case SSL_CTRL_SET_SESS_CACHE_SIZE: 825 l=ctx->session_cache_size; 826 ctx->session_cache_size=larg; 827 return(l); 828 case SSL_CTRL_GET_SESS_CACHE_SIZE: 829 return(ctx->session_cache_size); 830 case SSL_CTRL_SET_SESS_CACHE_MODE: 831 l=ctx->session_cache_mode; 832 ctx->session_cache_mode=larg; 833 return(l); 834 case SSL_CTRL_GET_SESS_CACHE_MODE: 835 return(ctx->session_cache_mode); 836 837 case SSL_CTRL_SESS_NUMBER: 838 return(ctx->sessions->num_items); 839 case SSL_CTRL_SESS_CONNECT: 840 return(ctx->stats.sess_connect); 841 case SSL_CTRL_SESS_CONNECT_GOOD: 842 return(ctx->stats.sess_connect_good); 843 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 844 return(ctx->stats.sess_connect_renegotiate); 845 case SSL_CTRL_SESS_ACCEPT: 846 return(ctx->stats.sess_accept); 847 case SSL_CTRL_SESS_ACCEPT_GOOD: 848 return(ctx->stats.sess_accept_good); 849 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 850 return(ctx->stats.sess_accept_renegotiate); 851 case SSL_CTRL_SESS_HIT: 852 return(ctx->stats.sess_hit); 853 case SSL_CTRL_SESS_CB_HIT: 854 return(ctx->stats.sess_cb_hit); 855 case SSL_CTRL_SESS_MISSES: 856 return(ctx->stats.sess_miss); 857 case SSL_CTRL_SESS_TIMEOUTS: 858 return(ctx->stats.sess_timeout); 859 case SSL_CTRL_SESS_CACHE_FULL: 860 return(ctx->stats.sess_cache_full); 861 case SSL_CTRL_OPTIONS: 862 return(ctx->options|=larg); 863 case SSL_CTRL_MODE: 864 return(ctx->mode|=larg); 865 default: 866 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 867 } 868 } 869 870 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)()) 871 { 872 switch(cmd) 873 { 874 default: 875 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 876 } 877 } 878 879 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 880 { 881 long l; 882 883 l=a->id-b->id; 884 if (l == 0L) 885 return(0); 886 else 887 return((l > 0)?1:-1); 888 } 889 890 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 891 const SSL_CIPHER * const *bp) 892 { 893 long l; 894 895 l=(*ap)->id-(*bp)->id; 896 if (l == 0L) 897 return(0); 898 else 899 return((l > 0)?1:-1); 900 } 901 902 /** return a STACK of the ciphers available for the SSL and in order of 903 * preference */ 904 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s) 905 { 906 if ((s != NULL) && (s->cipher_list != NULL)) 907 { 908 return(s->cipher_list); 909 } 910 else if ((s->ctx != NULL) && 911 (s->ctx->cipher_list != NULL)) 912 { 913 return(s->ctx->cipher_list); 914 } 915 return(NULL); 916 } 917 918 /** return a STACK of the ciphers available for the SSL and in order of 919 * algorithm id */ 920 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 921 { 922 if ((s != NULL) && (s->cipher_list_by_id != NULL)) 923 { 924 return(s->cipher_list_by_id); 925 } 926 else if ((s != NULL) && (s->ctx != NULL) && 927 (s->ctx->cipher_list_by_id != NULL)) 928 { 929 return(s->ctx->cipher_list_by_id); 930 } 931 return(NULL); 932 } 933 934 /** The old interface to get the same thing as SSL_get_ciphers() */ 935 const char *SSL_get_cipher_list(SSL *s,int n) 936 { 937 SSL_CIPHER *c; 938 STACK_OF(SSL_CIPHER) *sk; 939 940 if (s == NULL) return(NULL); 941 sk=SSL_get_ciphers(s); 942 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 943 return(NULL); 944 c=sk_SSL_CIPHER_value(sk,n); 945 if (c == NULL) return(NULL); 946 return(c->name); 947 } 948 949 /** specify the ciphers to be used by default by the SSL_CTX */ 950 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 951 { 952 STACK_OF(SSL_CIPHER) *sk; 953 954 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 955 &ctx->cipher_list_by_id,str); 956 /* XXXX */ 957 return((sk == NULL)?0:1); 958 } 959 960 /** specify the ciphers to be used by the SSL */ 961 int SSL_set_cipher_list(SSL *s,const char *str) 962 { 963 STACK_OF(SSL_CIPHER) *sk; 964 965 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 966 &s->cipher_list_by_id,str); 967 /* XXXX */ 968 return((sk == NULL)?0:1); 969 } 970 971 /* works well for SSLv2, not so good for SSLv3 */ 972 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len) 973 { 974 char *p; 975 const char *cp; 976 STACK_OF(SSL_CIPHER) *sk; 977 SSL_CIPHER *c; 978 int i; 979 980 if ((s->session == NULL) || (s->session->ciphers == NULL) || 981 (len < 2)) 982 return(NULL); 983 984 p=buf; 985 sk=s->session->ciphers; 986 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 987 { 988 /* Decrement for either the ':' or a '\0' */ 989 len--; 990 c=sk_SSL_CIPHER_value(sk,i); 991 for (cp=c->name; *cp; ) 992 { 993 if (len-- == 0) 994 { 995 *p='\0'; 996 return(buf); 997 } 998 else 999 *(p++)= *(cp++); 1000 } 1001 *(p++)=':'; 1002 } 1003 p[-1]='\0'; 1004 return(buf); 1005 } 1006 1007 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p) 1008 { 1009 int i,j=0; 1010 SSL_CIPHER *c; 1011 unsigned char *q; 1012 1013 if (sk == NULL) return(0); 1014 q=p; 1015 1016 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1017 { 1018 c=sk_SSL_CIPHER_value(sk,i); 1019 j=ssl_put_cipher_by_char(s,c,p); 1020 p+=j; 1021 } 1022 return(p-q); 1023 } 1024 1025 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1026 STACK_OF(SSL_CIPHER) **skp) 1027 { 1028 SSL_CIPHER *c; 1029 STACK_OF(SSL_CIPHER) *sk; 1030 int i,n; 1031 1032 n=ssl_put_cipher_by_char(s,NULL,NULL); 1033 if ((num%n) != 0) 1034 { 1035 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1036 return(NULL); 1037 } 1038 if ((skp == NULL) || (*skp == NULL)) 1039 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1040 else 1041 { 1042 sk= *skp; 1043 sk_SSL_CIPHER_zero(sk); 1044 } 1045 1046 for (i=0; i<num; i+=n) 1047 { 1048 c=ssl_get_cipher_by_char(s,p); 1049 p+=n; 1050 if (c != NULL) 1051 { 1052 if (!sk_SSL_CIPHER_push(sk,c)) 1053 { 1054 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1055 goto err; 1056 } 1057 } 1058 } 1059 1060 if (skp != NULL) 1061 *skp=sk; 1062 return(sk); 1063 err: 1064 if ((skp == NULL) || (*skp == NULL)) 1065 sk_SSL_CIPHER_free(sk); 1066 return(NULL); 1067 } 1068 1069 unsigned long SSL_SESSION_hash(SSL_SESSION *a) 1070 { 1071 unsigned long l; 1072 1073 l=(unsigned long) 1074 ((unsigned int) a->session_id[0] )| 1075 ((unsigned int) a->session_id[1]<< 8L)| 1076 ((unsigned long)a->session_id[2]<<16L)| 1077 ((unsigned long)a->session_id[3]<<24L); 1078 return(l); 1079 } 1080 1081 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b) 1082 { 1083 if (a->ssl_version != b->ssl_version) 1084 return(1); 1085 if (a->session_id_length != b->session_id_length) 1086 return(1); 1087 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1088 } 1089 1090 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth) 1091 { 1092 SSL_CTX *ret=NULL; 1093 1094 if (meth == NULL) 1095 { 1096 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1097 return(NULL); 1098 } 1099 1100 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1101 { 1102 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1103 goto err; 1104 } 1105 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); 1106 if (ret == NULL) 1107 goto err; 1108 1109 memset(ret,0,sizeof(SSL_CTX)); 1110 1111 ret->method=meth; 1112 1113 ret->cert_store=NULL; 1114 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1115 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1116 ret->session_cache_head=NULL; 1117 ret->session_cache_tail=NULL; 1118 1119 /* We take the system default */ 1120 ret->session_timeout=meth->get_timeout(); 1121 1122 ret->new_session_cb=NULL; 1123 ret->remove_session_cb=NULL; 1124 ret->get_session_cb=NULL; 1125 1126 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1127 1128 ret->references=1; 1129 ret->quiet_shutdown=0; 1130 1131 /* ret->cipher=NULL;*/ 1132 /* ret->s2->challenge=NULL; 1133 ret->master_key=NULL; 1134 ret->key_arg=NULL; 1135 ret->s2->conn_id=NULL; */ 1136 1137 ret->info_callback=NULL; 1138 1139 ret->app_verify_callback=NULL; 1140 ret->app_verify_arg=NULL; 1141 1142 ret->read_ahead=0; 1143 ret->verify_mode=SSL_VERIFY_NONE; 1144 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1145 ret->default_verify_callback=NULL; 1146 if ((ret->cert=ssl_cert_new()) == NULL) 1147 goto err; 1148 1149 ret->default_passwd_callback=NULL; 1150 ret->default_passwd_callback_userdata=NULL; 1151 ret->client_cert_cb=NULL; 1152 1153 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp); 1154 if (ret->sessions == NULL) goto err; 1155 ret->cert_store=X509_STORE_new(); 1156 if (ret->cert_store == NULL) goto err; 1157 1158 ssl_create_cipher_list(ret->method, 1159 &ret->cipher_list,&ret->cipher_list_by_id, 1160 SSL_DEFAULT_CIPHER_LIST); 1161 if (ret->cipher_list == NULL 1162 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1163 { 1164 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1165 goto err2; 1166 } 1167 1168 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1169 { 1170 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1171 goto err2; 1172 } 1173 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1174 { 1175 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1176 goto err2; 1177 } 1178 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1179 { 1180 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1181 goto err2; 1182 } 1183 1184 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1185 goto err; 1186 1187 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data); 1188 1189 ret->extra_certs=NULL; 1190 ret->comp_methods=SSL_COMP_get_compression_methods(); 1191 1192 return(ret); 1193 err: 1194 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1195 err2: 1196 if (ret != NULL) SSL_CTX_free(ret); 1197 return(NULL); 1198 } 1199 1200 static void SSL_COMP_free(SSL_COMP *comp) 1201 { OPENSSL_free(comp); } 1202 1203 void SSL_CTX_free(SSL_CTX *a) 1204 { 1205 int i; 1206 1207 if (a == NULL) return; 1208 1209 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1210 #ifdef REF_PRINT 1211 REF_PRINT("SSL_CTX",a); 1212 #endif 1213 if (i > 0) return; 1214 #ifdef REF_CHECK 1215 if (i < 0) 1216 { 1217 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1218 abort(); /* ok */ 1219 } 1220 #endif 1221 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data); 1222 1223 if (a->sessions != NULL) 1224 { 1225 SSL_CTX_flush_sessions(a,0); 1226 lh_free(a->sessions); 1227 } 1228 if (a->cert_store != NULL) 1229 X509_STORE_free(a->cert_store); 1230 if (a->cipher_list != NULL) 1231 sk_SSL_CIPHER_free(a->cipher_list); 1232 if (a->cipher_list_by_id != NULL) 1233 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1234 if (a->cert != NULL) 1235 ssl_cert_free(a->cert); 1236 if (a->client_CA != NULL) 1237 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1238 if (a->extra_certs != NULL) 1239 sk_X509_pop_free(a->extra_certs,X509_free); 1240 if (a->comp_methods != NULL) 1241 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1242 OPENSSL_free(a); 1243 } 1244 1245 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1246 { 1247 ctx->default_passwd_callback=cb; 1248 } 1249 1250 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1251 { 1252 ctx->default_passwd_callback_userdata=u; 1253 } 1254 1255 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg) 1256 { 1257 /* now 1258 * int (*cb)(X509_STORE_CTX *), 1259 * but should be 1260 * int (*cb)(X509_STORE_CTX *, void *arg) 1261 */ 1262 ctx->app_verify_callback=cb; 1263 ctx->app_verify_arg=arg; /* never used */ 1264 } 1265 1266 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1267 { 1268 ctx->verify_mode=mode; 1269 ctx->default_verify_callback=cb; 1270 /* This needs cleaning up EAY EAY EAY */ 1271 X509_STORE_set_verify_cb_func(ctx->cert_store,cb); 1272 } 1273 1274 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1275 { 1276 ctx->verify_depth=depth; 1277 } 1278 1279 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) 1280 { 1281 CERT_PKEY *cpk; 1282 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1283 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1284 int rsa_tmp_export,dh_tmp_export,kl; 1285 unsigned long mask,emask; 1286 1287 if (c == NULL) return; 1288 1289 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1290 1291 #ifndef NO_RSA 1292 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1293 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1294 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1295 #else 1296 rsa_tmp=rsa_tmp_export=0; 1297 #endif 1298 #ifndef NO_DH 1299 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1300 dh_tmp_export=(c->dh_tmp_cb != NULL || 1301 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1302 #else 1303 dh_tmp=dh_tmp_export=0; 1304 #endif 1305 1306 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1307 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1308 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1309 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1310 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1311 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1312 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1313 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1314 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1315 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1316 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1317 /* FIX THIS EAY EAY EAY */ 1318 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1319 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1320 1321 mask=0; 1322 emask=0; 1323 1324 #ifdef CIPHER_DEBUG 1325 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1326 rsa_tmp,rsa_tmp_export,dh_tmp, 1327 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1328 #endif 1329 1330 if (rsa_enc || (rsa_tmp && rsa_sign)) 1331 mask|=SSL_kRSA; 1332 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1333 emask|=SSL_kRSA; 1334 1335 #if 0 1336 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1337 if ( (dh_tmp || dh_rsa || dh_dsa) && 1338 (rsa_enc || rsa_sign || dsa_sign)) 1339 mask|=SSL_kEDH; 1340 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1341 (rsa_enc || rsa_sign || dsa_sign)) 1342 emask|=SSL_kEDH; 1343 #endif 1344 1345 if (dh_tmp_export) 1346 emask|=SSL_kEDH; 1347 1348 if (dh_tmp) 1349 mask|=SSL_kEDH; 1350 1351 if (dh_rsa) mask|=SSL_kDHr; 1352 if (dh_rsa_export) emask|=SSL_kDHr; 1353 1354 if (dh_dsa) mask|=SSL_kDHd; 1355 if (dh_dsa_export) emask|=SSL_kDHd; 1356 1357 if (rsa_enc || rsa_sign) 1358 { 1359 mask|=SSL_aRSA; 1360 emask|=SSL_aRSA; 1361 } 1362 1363 if (dsa_sign) 1364 { 1365 mask|=SSL_aDSS; 1366 emask|=SSL_aDSS; 1367 } 1368 1369 mask|=SSL_aNULL; 1370 emask|=SSL_aNULL; 1371 1372 c->mask=mask; 1373 c->export_mask=emask; 1374 c->valid=1; 1375 } 1376 1377 /* THIS NEEDS CLEANING UP */ 1378 X509 *ssl_get_server_send_cert(SSL *s) 1379 { 1380 unsigned long alg,mask,kalg; 1381 CERT *c; 1382 int i,is_export; 1383 1384 c=s->cert; 1385 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 1386 alg=s->s3->tmp.new_cipher->algorithms; 1387 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 1388 mask=is_export?c->export_mask:c->mask; 1389 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1390 1391 if (kalg & SSL_kDHr) 1392 i=SSL_PKEY_DH_RSA; 1393 else if (kalg & SSL_kDHd) 1394 i=SSL_PKEY_DH_DSA; 1395 else if (kalg & SSL_aDSS) 1396 i=SSL_PKEY_DSA_SIGN; 1397 else if (kalg & SSL_aRSA) 1398 { 1399 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1400 i=SSL_PKEY_RSA_SIGN; 1401 else 1402 i=SSL_PKEY_RSA_ENC; 1403 } 1404 else /* if (kalg & SSL_aNULL) */ 1405 { 1406 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR); 1407 return(NULL); 1408 } 1409 if (c->pkeys[i].x509 == NULL) return(NULL); 1410 return(c->pkeys[i].x509); 1411 } 1412 1413 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher) 1414 { 1415 unsigned long alg; 1416 CERT *c; 1417 1418 alg=cipher->algorithms; 1419 c=s->cert; 1420 1421 if ((alg & SSL_aDSS) && 1422 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 1423 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 1424 else if (alg & SSL_aRSA) 1425 { 1426 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 1427 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 1428 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 1429 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 1430 else 1431 return(NULL); 1432 } 1433 else /* if (alg & SSL_aNULL) */ 1434 { 1435 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR); 1436 return(NULL); 1437 } 1438 } 1439 1440 void ssl_update_cache(SSL *s,int mode) 1441 { 1442 int i; 1443 1444 /* If the session_id_length is 0, we are not supposed to cache it, 1445 * and it would be rather hard to do anyway :-) */ 1446 if (s->session->session_id_length == 0) return; 1447 1448 if ((s->ctx->session_cache_mode & mode) 1449 && (!s->hit) 1450 && SSL_CTX_add_session(s->ctx,s->session) 1451 && (s->ctx->new_session_cb != NULL)) 1452 { 1453 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 1454 if (!s->ctx->new_session_cb(s,s->session)) 1455 SSL_SESSION_free(s->session); 1456 } 1457 1458 /* auto flush every 255 connections */ 1459 i=s->ctx->session_cache_mode; 1460 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 1461 ((i & mode) == mode)) 1462 { 1463 if ( (((mode & SSL_SESS_CACHE_CLIENT) 1464 ?s->ctx->stats.sess_connect_good 1465 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff) 1466 { 1467 SSL_CTX_flush_sessions(s->ctx,time(NULL)); 1468 } 1469 } 1470 } 1471 1472 SSL_METHOD *SSL_get_ssl_method(SSL *s) 1473 { 1474 return(s->method); 1475 } 1476 1477 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth) 1478 { 1479 int conn= -1; 1480 int ret=1; 1481 1482 if (s->method != meth) 1483 { 1484 if (s->handshake_func != NULL) 1485 conn=(s->handshake_func == s->method->ssl_connect); 1486 1487 if (s->method->version == meth->version) 1488 s->method=meth; 1489 else 1490 { 1491 s->method->ssl_free(s); 1492 s->method=meth; 1493 ret=s->method->ssl_new(s); 1494 } 1495 1496 if (conn == 1) 1497 s->handshake_func=meth->ssl_connect; 1498 else if (conn == 0) 1499 s->handshake_func=meth->ssl_accept; 1500 } 1501 return(ret); 1502 } 1503 1504 int SSL_get_error(SSL *s,int i) 1505 { 1506 int reason; 1507 unsigned long l; 1508 BIO *bio; 1509 1510 if (i > 0) return(SSL_ERROR_NONE); 1511 1512 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 1513 * etc, where we do encode the error */ 1514 if ((l=ERR_peek_error()) != 0) 1515 { 1516 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 1517 return(SSL_ERROR_SYSCALL); 1518 else 1519 return(SSL_ERROR_SSL); 1520 } 1521 1522 if ((i < 0) && SSL_want_read(s)) 1523 { 1524 bio=SSL_get_rbio(s); 1525 if (BIO_should_read(bio)) 1526 return(SSL_ERROR_WANT_READ); 1527 else if (BIO_should_write(bio)) 1528 /* This one doesn't make too much sense ... We never try 1529 * to write to the rbio, and an application program where 1530 * rbio and wbio are separate couldn't even know what it 1531 * should wait for. 1532 * However if we ever set s->rwstate incorrectly 1533 * (so that we have SSL_want_read(s) instead of 1534 * SSL_want_write(s)) and rbio and wbio *are* the same, 1535 * this test works around that bug; so it might be safer 1536 * to keep it. */ 1537 return(SSL_ERROR_WANT_WRITE); 1538 else if (BIO_should_io_special(bio)) 1539 { 1540 reason=BIO_get_retry_reason(bio); 1541 if (reason == BIO_RR_CONNECT) 1542 return(SSL_ERROR_WANT_CONNECT); 1543 else 1544 return(SSL_ERROR_SYSCALL); /* unknown */ 1545 } 1546 } 1547 1548 if ((i < 0) && SSL_want_write(s)) 1549 { 1550 bio=SSL_get_wbio(s); 1551 if (BIO_should_write(bio)) 1552 return(SSL_ERROR_WANT_WRITE); 1553 else if (BIO_should_read(bio)) 1554 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 1555 return(SSL_ERROR_WANT_READ); 1556 else if (BIO_should_io_special(bio)) 1557 { 1558 reason=BIO_get_retry_reason(bio); 1559 if (reason == BIO_RR_CONNECT) 1560 return(SSL_ERROR_WANT_CONNECT); 1561 else 1562 return(SSL_ERROR_SYSCALL); 1563 } 1564 } 1565 if ((i < 0) && SSL_want_x509_lookup(s)) 1566 { 1567 return(SSL_ERROR_WANT_X509_LOOKUP); 1568 } 1569 1570 if (i == 0) 1571 { 1572 if (s->version == SSL2_VERSION) 1573 { 1574 /* assume it is the socket being closed */ 1575 return(SSL_ERROR_ZERO_RETURN); 1576 } 1577 else 1578 { 1579 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 1580 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 1581 return(SSL_ERROR_ZERO_RETURN); 1582 } 1583 } 1584 return(SSL_ERROR_SYSCALL); 1585 } 1586 1587 int SSL_do_handshake(SSL *s) 1588 { 1589 int ret=1; 1590 1591 if (s->handshake_func == NULL) 1592 { 1593 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 1594 return(-1); 1595 } 1596 1597 s->method->ssl_renegotiate_check(s); 1598 1599 if (SSL_in_init(s) || SSL_in_before(s)) 1600 { 1601 ret=s->handshake_func(s); 1602 } 1603 return(ret); 1604 } 1605 1606 /* For the next 2 functions, SSL_clear() sets shutdown and so 1607 * one of these calls will reset it */ 1608 void SSL_set_accept_state(SSL *s) 1609 { 1610 s->server=1; 1611 s->shutdown=0; 1612 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 1613 s->handshake_func=s->method->ssl_accept; 1614 /* clear the current cipher */ 1615 ssl_clear_cipher_ctx(s); 1616 } 1617 1618 void SSL_set_connect_state(SSL *s) 1619 { 1620 s->server=0; 1621 s->shutdown=0; 1622 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 1623 s->handshake_func=s->method->ssl_connect; 1624 /* clear the current cipher */ 1625 ssl_clear_cipher_ctx(s); 1626 } 1627 1628 int ssl_undefined_function(SSL *s) 1629 { 1630 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1631 return(0); 1632 } 1633 1634 SSL_METHOD *ssl_bad_method(int ver) 1635 { 1636 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1637 return(NULL); 1638 } 1639 1640 const char *SSL_get_version(SSL *s) 1641 { 1642 if (s->version == TLS1_VERSION) 1643 return("TLSv1"); 1644 else if (s->version == SSL3_VERSION) 1645 return("SSLv3"); 1646 else if (s->version == SSL2_VERSION) 1647 return("SSLv2"); 1648 else 1649 return("unknown"); 1650 } 1651 1652 SSL *SSL_dup(SSL *s) 1653 { 1654 STACK_OF(X509_NAME) *sk; 1655 X509_NAME *xn; 1656 SSL *ret; 1657 int i; 1658 1659 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 1660 return(NULL); 1661 1662 if (s->session != NULL) 1663 { 1664 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 1665 SSL_copy_session_id(ret,s); 1666 } 1667 else 1668 { 1669 /* No session has been established yet, so we have to expect 1670 * that s->cert or ret->cert will be changed later -- 1671 * they should not both point to the same object, 1672 * and thus we can't use SSL_copy_session_id. */ 1673 1674 ret->method = s->method; 1675 ret->method->ssl_new(ret); 1676 1677 if (s->cert != NULL) 1678 { 1679 ret->cert = ssl_cert_dup(s->cert); 1680 if (ret->cert == NULL) 1681 goto err; 1682 } 1683 1684 SSL_set_session_id_context(ret, 1685 s->sid_ctx, s->sid_ctx_length); 1686 } 1687 1688 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 1689 SSL_set_verify(ret,SSL_get_verify_mode(s), 1690 SSL_get_verify_callback(s)); 1691 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 1692 1693 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 1694 1695 ret->debug=s->debug; 1696 ret->options=s->options; 1697 1698 /* copy app data, a little dangerous perhaps */ 1699 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data)) 1700 goto err; 1701 1702 /* setup rbio, and wbio */ 1703 if (s->rbio != NULL) 1704 { 1705 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 1706 goto err; 1707 } 1708 if (s->wbio != NULL) 1709 { 1710 if (s->wbio != s->rbio) 1711 { 1712 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 1713 goto err; 1714 } 1715 else 1716 ret->wbio=ret->rbio; 1717 } 1718 1719 /* dup the cipher_list and cipher_list_by_id stacks */ 1720 if (s->cipher_list != NULL) 1721 { 1722 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 1723 goto err; 1724 } 1725 if (s->cipher_list_by_id != NULL) 1726 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 1727 == NULL) 1728 goto err; 1729 1730 /* Dup the client_CA list */ 1731 if (s->client_CA != NULL) 1732 { 1733 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 1734 ret->client_CA=sk; 1735 for (i=0; i<sk_X509_NAME_num(sk); i++) 1736 { 1737 xn=sk_X509_NAME_value(sk,i); 1738 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 1739 { 1740 X509_NAME_free(xn); 1741 goto err; 1742 } 1743 } 1744 } 1745 1746 ret->shutdown=s->shutdown; 1747 ret->state=s->state; 1748 ret->handshake_func=s->handshake_func; 1749 ret->server=s->server; 1750 1751 if (0) 1752 { 1753 err: 1754 if (ret != NULL) SSL_free(ret); 1755 ret=NULL; 1756 } 1757 return(ret); 1758 } 1759 1760 void ssl_clear_cipher_ctx(SSL *s) 1761 { 1762 if (s->enc_read_ctx != NULL) 1763 { 1764 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 1765 OPENSSL_free(s->enc_read_ctx); 1766 s->enc_read_ctx=NULL; 1767 } 1768 if (s->enc_write_ctx != NULL) 1769 { 1770 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 1771 OPENSSL_free(s->enc_write_ctx); 1772 s->enc_write_ctx=NULL; 1773 } 1774 if (s->expand != NULL) 1775 { 1776 COMP_CTX_free(s->expand); 1777 s->expand=NULL; 1778 } 1779 if (s->compress != NULL) 1780 { 1781 COMP_CTX_free(s->compress); 1782 s->compress=NULL; 1783 } 1784 } 1785 1786 /* Fix this function so that it takes an optional type parameter */ 1787 X509 *SSL_get_certificate(SSL *s) 1788 { 1789 if (s->cert != NULL) 1790 return(s->cert->key->x509); 1791 else 1792 return(NULL); 1793 } 1794 1795 /* Fix this function so that it takes an optional type parameter */ 1796 EVP_PKEY *SSL_get_privatekey(SSL *s) 1797 { 1798 if (s->cert != NULL) 1799 return(s->cert->key->privatekey); 1800 else 1801 return(NULL); 1802 } 1803 1804 SSL_CIPHER *SSL_get_current_cipher(SSL *s) 1805 { 1806 if ((s->session != NULL) && (s->session->cipher != NULL)) 1807 return(s->session->cipher); 1808 return(NULL); 1809 } 1810 1811 int ssl_init_wbio_buffer(SSL *s,int push) 1812 { 1813 BIO *bbio; 1814 1815 if (s->bbio == NULL) 1816 { 1817 bbio=BIO_new(BIO_f_buffer()); 1818 if (bbio == NULL) return(0); 1819 s->bbio=bbio; 1820 } 1821 else 1822 { 1823 bbio=s->bbio; 1824 if (s->bbio == s->wbio) 1825 s->wbio=BIO_pop(s->wbio); 1826 } 1827 (void)BIO_reset(bbio); 1828 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 1829 if (!BIO_set_read_buffer_size(bbio,1)) 1830 { 1831 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 1832 return(0); 1833 } 1834 if (push) 1835 { 1836 if (s->wbio != bbio) 1837 s->wbio=BIO_push(bbio,s->wbio); 1838 } 1839 else 1840 { 1841 if (s->wbio == bbio) 1842 s->wbio=BIO_pop(bbio); 1843 } 1844 return(1); 1845 } 1846 1847 void ssl_free_wbio_buffer(SSL *s) 1848 { 1849 if (s->bbio == NULL) return; 1850 1851 if (s->bbio == s->wbio) 1852 { 1853 /* remove buffering */ 1854 s->wbio=BIO_pop(s->wbio); 1855 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */ 1856 assert(s->wbio != NULL); 1857 #endif 1858 } 1859 BIO_free(s->bbio); 1860 s->bbio=NULL; 1861 } 1862 1863 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 1864 { 1865 ctx->quiet_shutdown=mode; 1866 } 1867 1868 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx) 1869 { 1870 return(ctx->quiet_shutdown); 1871 } 1872 1873 void SSL_set_quiet_shutdown(SSL *s,int mode) 1874 { 1875 s->quiet_shutdown=mode; 1876 } 1877 1878 int SSL_get_quiet_shutdown(SSL *s) 1879 { 1880 return(s->quiet_shutdown); 1881 } 1882 1883 void SSL_set_shutdown(SSL *s,int mode) 1884 { 1885 s->shutdown=mode; 1886 } 1887 1888 int SSL_get_shutdown(SSL *s) 1889 { 1890 return(s->shutdown); 1891 } 1892 1893 int SSL_version(SSL *s) 1894 { 1895 return(s->version); 1896 } 1897 1898 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl) 1899 { 1900 return(ssl->ctx); 1901 } 1902 1903 #ifndef NO_STDIO 1904 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 1905 { 1906 return(X509_STORE_set_default_paths(ctx->cert_store)); 1907 } 1908 1909 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 1910 const char *CApath) 1911 { 1912 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 1913 } 1914 #endif 1915 1916 void SSL_set_info_callback(SSL *ssl,void (*cb)()) 1917 { 1918 ssl->info_callback=cb; 1919 } 1920 1921 void (*SSL_get_info_callback(SSL *ssl))(void) 1922 { 1923 return((void (*)())ssl->info_callback); 1924 } 1925 1926 int SSL_state(SSL *ssl) 1927 { 1928 return(ssl->state); 1929 } 1930 1931 void SSL_set_verify_result(SSL *ssl,long arg) 1932 { 1933 ssl->verify_result=arg; 1934 } 1935 1936 long SSL_get_verify_result(SSL *ssl) 1937 { 1938 return(ssl->verify_result); 1939 } 1940 1941 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 1942 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 1943 { 1944 ssl_meth_num++; 1945 return(CRYPTO_get_ex_new_index(ssl_meth_num-1, 1946 &ssl_meth,argl,argp,new_func,dup_func,free_func)); 1947 } 1948 1949 int SSL_set_ex_data(SSL *s,int idx,void *arg) 1950 { 1951 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1952 } 1953 1954 void *SSL_get_ex_data(SSL *s,int idx) 1955 { 1956 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1957 } 1958 1959 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 1960 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 1961 { 1962 ssl_ctx_meth_num++; 1963 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1, 1964 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func)); 1965 } 1966 1967 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 1968 { 1969 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1970 } 1971 1972 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx) 1973 { 1974 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1975 } 1976 1977 int ssl_ok(SSL *s) 1978 { 1979 return(1); 1980 } 1981 1982 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx) 1983 { 1984 return(ctx->cert_store); 1985 } 1986 1987 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 1988 { 1989 if (ctx->cert_store != NULL) 1990 X509_STORE_free(ctx->cert_store); 1991 ctx->cert_store=store; 1992 } 1993 1994 int SSL_want(SSL *s) 1995 { 1996 return(s->rwstate); 1997 } 1998 1999 /*! 2000 * \brief Set the callback for generating temporary RSA keys. 2001 * \param ctx the SSL context. 2002 * \param cb the callback 2003 */ 2004 2005 #ifndef NO_RSA 2006 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2007 int is_export, 2008 int keylength)) 2009 { 2010 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2011 } 2012 2013 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2014 int is_export, 2015 int keylength)) 2016 { 2017 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2018 } 2019 #endif 2020 2021 #ifdef DOXYGEN 2022 /*! 2023 * \brief The RSA temporary key callback function. 2024 * \param ssl the SSL session. 2025 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2026 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2027 * of the required key in bits. 2028 * \return the temporary RSA key. 2029 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2030 */ 2031 2032 RSA *cb(SSL *ssl,int is_export,int keylength) 2033 {} 2034 #endif 2035 2036 /*! 2037 * \brief Set the callback for generating temporary DH keys. 2038 * \param ctx the SSL context. 2039 * \param dh the callback 2040 */ 2041 2042 #ifndef NO_DH 2043 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2044 int keylength)) 2045 { 2046 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2047 } 2048 2049 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2050 int keylength)) 2051 { 2052 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2053 } 2054 #endif 2055 2056 #if defined(_WINDLL) && defined(WIN16) 2057 #include "../crypto/bio/bss_file.c" 2058 #endif 2059 2060 IMPLEMENT_STACK_OF(SSL_CIPHER) 2061 IMPLEMENT_STACK_OF(SSL_COMP) 2062