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 #if 0 123 s->read_ahead=s->ctx->read_ahead; 124 #endif 125 126 if (s->init_buf != NULL) 127 { 128 BUF_MEM_free(s->init_buf); 129 s->init_buf=NULL; 130 } 131 132 ssl_clear_cipher_ctx(s); 133 134 if (ssl_clear_bad_session(s)) 135 { 136 SSL_SESSION_free(s->session); 137 s->session=NULL; 138 } 139 140 s->first_packet=0; 141 142 #if 1 143 /* Check to see if we were changed into a different method, if 144 * so, revert back if we are not doing session-id reuse. */ 145 if ((s->session == NULL) && (s->method != s->ctx->method)) 146 { 147 s->method->ssl_free(s); 148 s->method=s->ctx->method; 149 if (!s->method->ssl_new(s)) 150 return(0); 151 } 152 else 153 #endif 154 s->method->ssl_clear(s); 155 return(1); 156 } 157 158 /** Used to change an SSL_CTXs default SSL method type */ 159 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth) 160 { 161 STACK_OF(SSL_CIPHER) *sk; 162 163 ctx->method=meth; 164 165 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list), 166 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST); 167 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) 168 { 169 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 170 return(0); 171 } 172 return(1); 173 } 174 175 SSL *SSL_new(SSL_CTX *ctx) 176 { 177 SSL *s; 178 179 if (ctx == NULL) 180 { 181 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX); 182 return(NULL); 183 } 184 if (ctx->method == NULL) 185 { 186 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 187 return(NULL); 188 } 189 190 s=(SSL *)OPENSSL_malloc(sizeof(SSL)); 191 if (s == NULL) goto err; 192 memset(s,0,sizeof(SSL)); 193 194 if (ctx->cert != NULL) 195 { 196 /* Earlier library versions used to copy the pointer to 197 * the CERT, not its contents; only when setting new 198 * parameters for the per-SSL copy, ssl_cert_new would be 199 * called (and the direct reference to the per-SSL_CTX 200 * settings would be lost, but those still were indirectly 201 * accessed for various purposes, and for that reason they 202 * used to be known as s->ctx->default_cert). 203 * Now we don't look at the SSL_CTX's CERT after having 204 * duplicated it once. */ 205 206 s->cert = ssl_cert_dup(ctx->cert); 207 if (s->cert == NULL) 208 goto err; 209 } 210 else 211 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */ 212 s->sid_ctx_length=ctx->sid_ctx_length; 213 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx)); 214 s->verify_mode=ctx->verify_mode; 215 s->verify_depth=ctx->verify_depth; 216 s->verify_callback=ctx->default_verify_callback; 217 s->purpose = ctx->purpose; 218 s->trust = ctx->trust; 219 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 220 s->ctx=ctx; 221 222 s->verify_result=X509_V_OK; 223 224 s->method=ctx->method; 225 226 if (!s->method->ssl_new(s)) 227 goto err; 228 229 s->quiet_shutdown=ctx->quiet_shutdown; 230 s->references=1; 231 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1; 232 s->options=ctx->options; 233 s->mode=ctx->mode; 234 s->read_ahead=ctx->read_ahead; /* used to happen in SSL_clear */ 235 SSL_clear(s); 236 237 CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data); 238 239 return(s); 240 err: 241 if (s != NULL) 242 { 243 if (s->cert != NULL) 244 ssl_cert_free(s->cert); 245 if (s->ctx != NULL) 246 SSL_CTX_free(s->ctx); /* decrement reference count */ 247 OPENSSL_free(s); 248 } 249 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE); 250 return(NULL); 251 } 252 253 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx, 254 unsigned int sid_ctx_len) 255 { 256 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 257 { 258 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 259 return 0; 260 } 261 ctx->sid_ctx_length=sid_ctx_len; 262 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len); 263 264 return 1; 265 } 266 267 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx, 268 unsigned int sid_ctx_len) 269 { 270 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) 271 { 272 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); 273 return 0; 274 } 275 ssl->sid_ctx_length=sid_ctx_len; 276 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len); 277 278 return 1; 279 } 280 281 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) 282 { 283 if(X509_PURPOSE_get_by_id(purpose) == -1) { 284 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE); 285 return 0; 286 } 287 s->purpose = purpose; 288 return 1; 289 } 290 291 int SSL_set_purpose(SSL *s, int purpose) 292 { 293 if(X509_PURPOSE_get_by_id(purpose) == -1) { 294 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE); 295 return 0; 296 } 297 s->purpose = purpose; 298 return 1; 299 } 300 301 int SSL_CTX_set_trust(SSL_CTX *s, int trust) 302 { 303 if(X509_TRUST_get_by_id(trust) == -1) { 304 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST); 305 return 0; 306 } 307 s->trust = trust; 308 return 1; 309 } 310 311 int SSL_set_trust(SSL *s, int trust) 312 { 313 if(X509_TRUST_get_by_id(trust) == -1) { 314 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST); 315 return 0; 316 } 317 s->trust = trust; 318 return 1; 319 } 320 321 void SSL_free(SSL *s) 322 { 323 int i; 324 325 if(s == NULL) 326 return; 327 328 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL); 329 #ifdef REF_PRINT 330 REF_PRINT("SSL",s); 331 #endif 332 if (i > 0) return; 333 #ifdef REF_CHECK 334 if (i < 0) 335 { 336 fprintf(stderr,"SSL_free, bad reference count\n"); 337 abort(); /* ok */ 338 } 339 #endif 340 341 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data); 342 343 if (s->bbio != NULL) 344 { 345 /* If the buffering BIO is in place, pop it off */ 346 if (s->bbio == s->wbio) 347 { 348 s->wbio=BIO_pop(s->wbio); 349 } 350 BIO_free(s->bbio); 351 s->bbio=NULL; 352 } 353 if (s->rbio != NULL) 354 BIO_free_all(s->rbio); 355 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 356 BIO_free_all(s->wbio); 357 358 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf); 359 360 /* add extra stuff */ 361 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list); 362 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id); 363 364 /* Make the next call work :-) */ 365 if (s->session != NULL) 366 { 367 ssl_clear_bad_session(s); 368 SSL_SESSION_free(s->session); 369 } 370 371 ssl_clear_cipher_ctx(s); 372 373 if (s->cert != NULL) ssl_cert_free(s->cert); 374 /* Free up if allocated */ 375 376 if (s->ctx) SSL_CTX_free(s->ctx); 377 378 if (s->client_CA != NULL) 379 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free); 380 381 if (s->method != NULL) s->method->ssl_free(s); 382 383 OPENSSL_free(s); 384 } 385 386 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio) 387 { 388 /* If the output buffering BIO is still in place, remove it 389 */ 390 if (s->bbio != NULL) 391 { 392 if (s->wbio == s->bbio) 393 { 394 s->wbio=s->wbio->next_bio; 395 s->bbio->next_bio=NULL; 396 } 397 } 398 if ((s->rbio != NULL) && (s->rbio != rbio)) 399 BIO_free_all(s->rbio); 400 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 401 BIO_free_all(s->wbio); 402 s->rbio=rbio; 403 s->wbio=wbio; 404 } 405 406 BIO *SSL_get_rbio(SSL *s) 407 { return(s->rbio); } 408 409 BIO *SSL_get_wbio(SSL *s) 410 { return(s->wbio); } 411 412 int SSL_get_fd(SSL *s) 413 { 414 int ret= -1; 415 BIO *b,*r; 416 417 b=SSL_get_rbio(s); 418 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 419 if (r != NULL) 420 BIO_get_fd(r,&ret); 421 return(ret); 422 } 423 424 #ifndef NO_SOCK 425 int SSL_set_fd(SSL *s,int fd) 426 { 427 int ret=0; 428 BIO *bio=NULL; 429 430 bio=BIO_new(BIO_s_socket()); 431 432 if (bio == NULL) 433 { 434 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 435 goto err; 436 } 437 BIO_set_fd(bio,fd,BIO_NOCLOSE); 438 SSL_set_bio(s,bio,bio); 439 ret=1; 440 err: 441 return(ret); 442 } 443 444 int SSL_set_wfd(SSL *s,int fd) 445 { 446 int ret=0; 447 BIO *bio=NULL; 448 449 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 450 || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 451 { 452 bio=BIO_new(BIO_s_socket()); 453 454 if (bio == NULL) 455 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 456 BIO_set_fd(bio,fd,BIO_NOCLOSE); 457 SSL_set_bio(s,SSL_get_rbio(s),bio); 458 } 459 else 460 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 461 ret=1; 462 err: 463 return(ret); 464 } 465 466 int SSL_set_rfd(SSL *s,int fd) 467 { 468 int ret=0; 469 BIO *bio=NULL; 470 471 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 472 || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 473 { 474 bio=BIO_new(BIO_s_socket()); 475 476 if (bio == NULL) 477 { 478 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 479 goto err; 480 } 481 BIO_set_fd(bio,fd,BIO_NOCLOSE); 482 SSL_set_bio(s,bio,SSL_get_wbio(s)); 483 } 484 else 485 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 486 ret=1; 487 err: 488 return(ret); 489 } 490 #endif 491 492 493 /* return length of latest Finished message we sent, copy to 'buf' */ 494 size_t SSL_get_finished(SSL *s, void *buf, size_t count) 495 { 496 size_t ret = 0; 497 498 if (s->s3 != NULL) 499 { 500 ret = s->s3->tmp.finish_md_len; 501 if (count > ret) 502 count = ret; 503 memcpy(buf, s->s3->tmp.finish_md, count); 504 } 505 return ret; 506 } 507 508 /* return length of latest Finished message we expected, copy to 'buf' */ 509 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count) 510 { 511 size_t ret = 0; 512 513 if (s->s3 != NULL) 514 { 515 ret = s->s3->tmp.peer_finish_md_len; 516 if (count > ret) 517 count = ret; 518 memcpy(buf, s->s3->tmp.peer_finish_md, count); 519 } 520 return ret; 521 } 522 523 524 int SSL_get_verify_mode(SSL *s) 525 { 526 return(s->verify_mode); 527 } 528 529 int SSL_get_verify_depth(SSL *s) 530 { 531 return(s->verify_depth); 532 } 533 534 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *) 535 { 536 return(s->verify_callback); 537 } 538 539 int SSL_CTX_get_verify_mode(SSL_CTX *ctx) 540 { 541 return(ctx->verify_mode); 542 } 543 544 int SSL_CTX_get_verify_depth(SSL_CTX *ctx) 545 { 546 return(ctx->verify_depth); 547 } 548 549 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *) 550 { 551 return(ctx->default_verify_callback); 552 } 553 554 void SSL_set_verify(SSL *s,int mode, 555 int (*callback)(int ok,X509_STORE_CTX *ctx)) 556 { 557 s->verify_mode=mode; 558 if (callback != NULL) 559 s->verify_callback=callback; 560 } 561 562 void SSL_set_verify_depth(SSL *s,int depth) 563 { 564 s->verify_depth=depth; 565 } 566 567 void SSL_set_read_ahead(SSL *s,int yes) 568 { 569 s->read_ahead=yes; 570 } 571 572 int SSL_get_read_ahead(SSL *s) 573 { 574 return(s->read_ahead); 575 } 576 577 int SSL_pending(SSL *s) 578 { 579 return(s->method->ssl_pending(s)); 580 } 581 582 X509 *SSL_get_peer_certificate(SSL *s) 583 { 584 X509 *r; 585 586 if ((s == NULL) || (s->session == NULL)) 587 r=NULL; 588 else 589 r=s->session->peer; 590 591 if (r == NULL) return(r); 592 593 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 594 595 return(r); 596 } 597 598 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s) 599 { 600 STACK_OF(X509) *r; 601 602 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL)) 603 r=NULL; 604 else 605 r=s->session->sess_cert->cert_chain; 606 607 /* If we are a client, cert_chain includes the peer's own 608 * certificate; if we are a server, it does not. */ 609 610 return(r); 611 } 612 613 /* Now in theory, since the calling process own 't' it should be safe to 614 * modify. We need to be able to read f without being hassled */ 615 void SSL_copy_session_id(SSL *t,SSL *f) 616 { 617 CERT *tmp; 618 619 /* Do we need to to SSL locking? */ 620 SSL_set_session(t,SSL_get_session(f)); 621 622 /* what if we are setup as SSLv2 but want to talk SSLv3 or 623 * vice-versa */ 624 if (t->method != f->method) 625 { 626 t->method->ssl_free(t); /* cleanup current */ 627 t->method=f->method; /* change method */ 628 t->method->ssl_new(t); /* setup new */ 629 } 630 631 tmp=t->cert; 632 if (f->cert != NULL) 633 { 634 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 635 t->cert=f->cert; 636 } 637 else 638 t->cert=NULL; 639 if (tmp != NULL) ssl_cert_free(tmp); 640 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length); 641 } 642 643 /* Fix this so it checks all the valid key/cert options */ 644 int SSL_CTX_check_private_key(SSL_CTX *ctx) 645 { 646 if ( (ctx == NULL) || 647 (ctx->cert == NULL) || 648 (ctx->cert->key->x509 == NULL)) 649 { 650 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 651 return(0); 652 } 653 if (ctx->cert->key->privatekey == NULL) 654 { 655 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 656 return(0); 657 } 658 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey)); 659 } 660 661 /* Fix this function so that it takes an optional type parameter */ 662 int SSL_check_private_key(SSL *ssl) 663 { 664 if (ssl == NULL) 665 { 666 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 667 return(0); 668 } 669 if (ssl->cert == NULL) 670 { 671 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 672 return 0; 673 } 674 if (ssl->cert->key->x509 == NULL) 675 { 676 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 677 return(0); 678 } 679 if (ssl->cert->key->privatekey == NULL) 680 { 681 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 682 return(0); 683 } 684 return(X509_check_private_key(ssl->cert->key->x509, 685 ssl->cert->key->privatekey)); 686 } 687 688 int SSL_accept(SSL *s) 689 { 690 if (s->handshake_func == 0) 691 /* Not properly initialized yet */ 692 SSL_set_accept_state(s); 693 694 return(s->method->ssl_accept(s)); 695 } 696 697 int SSL_connect(SSL *s) 698 { 699 if (s->handshake_func == 0) 700 /* Not properly initialized yet */ 701 SSL_set_connect_state(s); 702 703 return(s->method->ssl_connect(s)); 704 } 705 706 long SSL_get_default_timeout(SSL *s) 707 { 708 return(s->method->get_timeout()); 709 } 710 711 int SSL_read(SSL *s,void *buf,int num) 712 { 713 if (s->handshake_func == 0) 714 { 715 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 716 return -1; 717 } 718 719 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 720 { 721 s->rwstate=SSL_NOTHING; 722 return(0); 723 } 724 return(s->method->ssl_read(s,buf,num)); 725 } 726 727 int SSL_peek(SSL *s,void *buf,int num) 728 { 729 if (s->handshake_func == 0) 730 { 731 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); 732 return -1; 733 } 734 735 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 736 { 737 return(0); 738 } 739 return(s->method->ssl_peek(s,buf,num)); 740 } 741 742 int SSL_write(SSL *s,const void *buf,int num) 743 { 744 if (s->handshake_func == 0) 745 { 746 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 747 return -1; 748 } 749 750 if (s->shutdown & SSL_SENT_SHUTDOWN) 751 { 752 s->rwstate=SSL_NOTHING; 753 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 754 return(-1); 755 } 756 return(s->method->ssl_write(s,buf,num)); 757 } 758 759 int SSL_shutdown(SSL *s) 760 { 761 /* Note that this function behaves differently from what one might 762 * expect. Return values are 0 for no success (yet), 763 * 1 for success; but calling it once is usually not enough, 764 * even if blocking I/O is used (see ssl3_shutdown). 765 */ 766 767 if (s->handshake_func == 0) 768 { 769 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 770 return -1; 771 } 772 773 if ((s != NULL) && !SSL_in_init(s)) 774 return(s->method->ssl_shutdown(s)); 775 else 776 return(1); 777 } 778 779 int SSL_renegotiate(SSL *s) 780 { 781 s->new_session=1; 782 return(s->method->ssl_renegotiate(s)); 783 } 784 785 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg) 786 { 787 long l; 788 789 switch (cmd) 790 { 791 case SSL_CTRL_GET_READ_AHEAD: 792 return(s->read_ahead); 793 case SSL_CTRL_SET_READ_AHEAD: 794 l=s->read_ahead; 795 s->read_ahead=larg; 796 return(l); 797 case SSL_CTRL_OPTIONS: 798 return(s->options|=larg); 799 case SSL_CTRL_MODE: 800 return(s->mode|=larg); 801 default: 802 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 803 } 804 } 805 806 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)()) 807 { 808 switch(cmd) 809 { 810 default: 811 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 812 } 813 } 814 815 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx) 816 { 817 return ctx->sessions; 818 } 819 820 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg) 821 { 822 long l; 823 824 switch (cmd) 825 { 826 case SSL_CTRL_GET_READ_AHEAD: 827 return(ctx->read_ahead); 828 case SSL_CTRL_SET_READ_AHEAD: 829 l=ctx->read_ahead; 830 ctx->read_ahead=larg; 831 return(l); 832 833 case SSL_CTRL_SET_SESS_CACHE_SIZE: 834 l=ctx->session_cache_size; 835 ctx->session_cache_size=larg; 836 return(l); 837 case SSL_CTRL_GET_SESS_CACHE_SIZE: 838 return(ctx->session_cache_size); 839 case SSL_CTRL_SET_SESS_CACHE_MODE: 840 l=ctx->session_cache_mode; 841 ctx->session_cache_mode=larg; 842 return(l); 843 case SSL_CTRL_GET_SESS_CACHE_MODE: 844 return(ctx->session_cache_mode); 845 846 case SSL_CTRL_SESS_NUMBER: 847 return(ctx->sessions->num_items); 848 case SSL_CTRL_SESS_CONNECT: 849 return(ctx->stats.sess_connect); 850 case SSL_CTRL_SESS_CONNECT_GOOD: 851 return(ctx->stats.sess_connect_good); 852 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 853 return(ctx->stats.sess_connect_renegotiate); 854 case SSL_CTRL_SESS_ACCEPT: 855 return(ctx->stats.sess_accept); 856 case SSL_CTRL_SESS_ACCEPT_GOOD: 857 return(ctx->stats.sess_accept_good); 858 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 859 return(ctx->stats.sess_accept_renegotiate); 860 case SSL_CTRL_SESS_HIT: 861 return(ctx->stats.sess_hit); 862 case SSL_CTRL_SESS_CB_HIT: 863 return(ctx->stats.sess_cb_hit); 864 case SSL_CTRL_SESS_MISSES: 865 return(ctx->stats.sess_miss); 866 case SSL_CTRL_SESS_TIMEOUTS: 867 return(ctx->stats.sess_timeout); 868 case SSL_CTRL_SESS_CACHE_FULL: 869 return(ctx->stats.sess_cache_full); 870 case SSL_CTRL_OPTIONS: 871 return(ctx->options|=larg); 872 case SSL_CTRL_MODE: 873 return(ctx->mode|=larg); 874 default: 875 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 876 } 877 } 878 879 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)()) 880 { 881 switch(cmd) 882 { 883 default: 884 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 885 } 886 } 887 888 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 889 { 890 long l; 891 892 l=a->id-b->id; 893 if (l == 0L) 894 return(0); 895 else 896 return((l > 0)?1:-1); 897 } 898 899 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 900 const SSL_CIPHER * const *bp) 901 { 902 long l; 903 904 l=(*ap)->id-(*bp)->id; 905 if (l == 0L) 906 return(0); 907 else 908 return((l > 0)?1:-1); 909 } 910 911 /** return a STACK of the ciphers available for the SSL and in order of 912 * preference */ 913 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s) 914 { 915 if ((s != NULL) && (s->cipher_list != NULL)) 916 { 917 return(s->cipher_list); 918 } 919 else if ((s->ctx != NULL) && 920 (s->ctx->cipher_list != NULL)) 921 { 922 return(s->ctx->cipher_list); 923 } 924 return(NULL); 925 } 926 927 /** return a STACK of the ciphers available for the SSL and in order of 928 * algorithm id */ 929 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 930 { 931 if ((s != NULL) && (s->cipher_list_by_id != NULL)) 932 { 933 return(s->cipher_list_by_id); 934 } 935 else if ((s != NULL) && (s->ctx != NULL) && 936 (s->ctx->cipher_list_by_id != NULL)) 937 { 938 return(s->ctx->cipher_list_by_id); 939 } 940 return(NULL); 941 } 942 943 /** The old interface to get the same thing as SSL_get_ciphers() */ 944 const char *SSL_get_cipher_list(SSL *s,int n) 945 { 946 SSL_CIPHER *c; 947 STACK_OF(SSL_CIPHER) *sk; 948 949 if (s == NULL) return(NULL); 950 sk=SSL_get_ciphers(s); 951 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 952 return(NULL); 953 c=sk_SSL_CIPHER_value(sk,n); 954 if (c == NULL) return(NULL); 955 return(c->name); 956 } 957 958 /** specify the ciphers to be used by default by the SSL_CTX */ 959 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 960 { 961 STACK_OF(SSL_CIPHER) *sk; 962 963 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 964 &ctx->cipher_list_by_id,str); 965 /* XXXX */ 966 return((sk == NULL)?0:1); 967 } 968 969 /** specify the ciphers to be used by the SSL */ 970 int SSL_set_cipher_list(SSL *s,const char *str) 971 { 972 STACK_OF(SSL_CIPHER) *sk; 973 974 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 975 &s->cipher_list_by_id,str); 976 /* XXXX */ 977 return((sk == NULL)?0:1); 978 } 979 980 /* works well for SSLv2, not so good for SSLv3 */ 981 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len) 982 { 983 char *p; 984 const char *cp; 985 STACK_OF(SSL_CIPHER) *sk; 986 SSL_CIPHER *c; 987 int i; 988 989 if ((s->session == NULL) || (s->session->ciphers == NULL) || 990 (len < 2)) 991 return(NULL); 992 993 p=buf; 994 sk=s->session->ciphers; 995 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 996 { 997 /* Decrement for either the ':' or a '\0' */ 998 len--; 999 c=sk_SSL_CIPHER_value(sk,i); 1000 for (cp=c->name; *cp; ) 1001 { 1002 if (len-- == 0) 1003 { 1004 *p='\0'; 1005 return(buf); 1006 } 1007 else 1008 *(p++)= *(cp++); 1009 } 1010 *(p++)=':'; 1011 } 1012 p[-1]='\0'; 1013 return(buf); 1014 } 1015 1016 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p) 1017 { 1018 int i,j=0; 1019 SSL_CIPHER *c; 1020 unsigned char *q; 1021 1022 if (sk == NULL) return(0); 1023 q=p; 1024 1025 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1026 { 1027 c=sk_SSL_CIPHER_value(sk,i); 1028 j=ssl_put_cipher_by_char(s,c,p); 1029 p+=j; 1030 } 1031 return(p-q); 1032 } 1033 1034 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1035 STACK_OF(SSL_CIPHER) **skp) 1036 { 1037 SSL_CIPHER *c; 1038 STACK_OF(SSL_CIPHER) *sk; 1039 int i,n; 1040 1041 n=ssl_put_cipher_by_char(s,NULL,NULL); 1042 if ((num%n) != 0) 1043 { 1044 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1045 return(NULL); 1046 } 1047 if ((skp == NULL) || (*skp == NULL)) 1048 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1049 else 1050 { 1051 sk= *skp; 1052 sk_SSL_CIPHER_zero(sk); 1053 } 1054 1055 for (i=0; i<num; i+=n) 1056 { 1057 c=ssl_get_cipher_by_char(s,p); 1058 p+=n; 1059 if (c != NULL) 1060 { 1061 if (!sk_SSL_CIPHER_push(sk,c)) 1062 { 1063 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1064 goto err; 1065 } 1066 } 1067 } 1068 1069 if (skp != NULL) 1070 *skp=sk; 1071 return(sk); 1072 err: 1073 if ((skp == NULL) || (*skp == NULL)) 1074 sk_SSL_CIPHER_free(sk); 1075 return(NULL); 1076 } 1077 1078 unsigned long SSL_SESSION_hash(SSL_SESSION *a) 1079 { 1080 unsigned long l; 1081 1082 l=(unsigned long) 1083 ((unsigned int) a->session_id[0] )| 1084 ((unsigned int) a->session_id[1]<< 8L)| 1085 ((unsigned long)a->session_id[2]<<16L)| 1086 ((unsigned long)a->session_id[3]<<24L); 1087 return(l); 1088 } 1089 1090 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b) 1091 { 1092 if (a->ssl_version != b->ssl_version) 1093 return(1); 1094 if (a->session_id_length != b->session_id_length) 1095 return(1); 1096 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1097 } 1098 1099 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth) 1100 { 1101 SSL_CTX *ret=NULL; 1102 1103 if (meth == NULL) 1104 { 1105 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1106 return(NULL); 1107 } 1108 1109 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1110 { 1111 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1112 goto err; 1113 } 1114 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); 1115 if (ret == NULL) 1116 goto err; 1117 1118 memset(ret,0,sizeof(SSL_CTX)); 1119 1120 ret->method=meth; 1121 1122 ret->cert_store=NULL; 1123 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1124 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1125 ret->session_cache_head=NULL; 1126 ret->session_cache_tail=NULL; 1127 1128 /* We take the system default */ 1129 ret->session_timeout=meth->get_timeout(); 1130 1131 ret->new_session_cb=NULL; 1132 ret->remove_session_cb=NULL; 1133 ret->get_session_cb=NULL; 1134 1135 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1136 1137 ret->references=1; 1138 ret->quiet_shutdown=0; 1139 1140 /* ret->cipher=NULL;*/ 1141 /* ret->s2->challenge=NULL; 1142 ret->master_key=NULL; 1143 ret->key_arg=NULL; 1144 ret->s2->conn_id=NULL; */ 1145 1146 ret->info_callback=NULL; 1147 1148 ret->app_verify_callback=NULL; 1149 ret->app_verify_arg=NULL; 1150 1151 ret->read_ahead=0; 1152 ret->verify_mode=SSL_VERIFY_NONE; 1153 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1154 ret->default_verify_callback=NULL; 1155 if ((ret->cert=ssl_cert_new()) == NULL) 1156 goto err; 1157 1158 ret->default_passwd_callback=NULL; 1159 ret->default_passwd_callback_userdata=NULL; 1160 ret->client_cert_cb=NULL; 1161 1162 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp); 1163 if (ret->sessions == NULL) goto err; 1164 ret->cert_store=X509_STORE_new(); 1165 if (ret->cert_store == NULL) goto err; 1166 1167 ssl_create_cipher_list(ret->method, 1168 &ret->cipher_list,&ret->cipher_list_by_id, 1169 SSL_DEFAULT_CIPHER_LIST); 1170 if (ret->cipher_list == NULL 1171 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1172 { 1173 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1174 goto err2; 1175 } 1176 1177 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1178 { 1179 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1180 goto err2; 1181 } 1182 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1183 { 1184 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1185 goto err2; 1186 } 1187 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1188 { 1189 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1190 goto err2; 1191 } 1192 1193 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1194 goto err; 1195 1196 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data); 1197 1198 ret->extra_certs=NULL; 1199 ret->comp_methods=SSL_COMP_get_compression_methods(); 1200 1201 return(ret); 1202 err: 1203 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1204 err2: 1205 if (ret != NULL) SSL_CTX_free(ret); 1206 return(NULL); 1207 } 1208 1209 static void SSL_COMP_free(SSL_COMP *comp) 1210 { OPENSSL_free(comp); } 1211 1212 void SSL_CTX_free(SSL_CTX *a) 1213 { 1214 int i; 1215 1216 if (a == NULL) return; 1217 1218 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1219 #ifdef REF_PRINT 1220 REF_PRINT("SSL_CTX",a); 1221 #endif 1222 if (i > 0) return; 1223 #ifdef REF_CHECK 1224 if (i < 0) 1225 { 1226 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1227 abort(); /* ok */ 1228 } 1229 #endif 1230 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data); 1231 1232 if (a->sessions != NULL) 1233 { 1234 SSL_CTX_flush_sessions(a,0); 1235 lh_free(a->sessions); 1236 } 1237 if (a->cert_store != NULL) 1238 X509_STORE_free(a->cert_store); 1239 if (a->cipher_list != NULL) 1240 sk_SSL_CIPHER_free(a->cipher_list); 1241 if (a->cipher_list_by_id != NULL) 1242 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1243 if (a->cert != NULL) 1244 ssl_cert_free(a->cert); 1245 if (a->client_CA != NULL) 1246 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1247 if (a->extra_certs != NULL) 1248 sk_X509_pop_free(a->extra_certs,X509_free); 1249 if (a->comp_methods != NULL) 1250 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1251 OPENSSL_free(a); 1252 } 1253 1254 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1255 { 1256 ctx->default_passwd_callback=cb; 1257 } 1258 1259 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1260 { 1261 ctx->default_passwd_callback_userdata=u; 1262 } 1263 1264 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg) 1265 { 1266 /* now 1267 * int (*cb)(X509_STORE_CTX *), 1268 * but should be 1269 * int (*cb)(X509_STORE_CTX *, void *arg) 1270 */ 1271 ctx->app_verify_callback=cb; 1272 ctx->app_verify_arg=arg; /* never used */ 1273 } 1274 1275 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1276 { 1277 ctx->verify_mode=mode; 1278 ctx->default_verify_callback=cb; 1279 /* This needs cleaning up EAY EAY EAY */ 1280 X509_STORE_set_verify_cb_func(ctx->cert_store,cb); 1281 } 1282 1283 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1284 { 1285 ctx->verify_depth=depth; 1286 } 1287 1288 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) 1289 { 1290 CERT_PKEY *cpk; 1291 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1292 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1293 int rsa_tmp_export,dh_tmp_export,kl; 1294 unsigned long mask,emask; 1295 1296 if (c == NULL) return; 1297 1298 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1299 1300 #ifndef NO_RSA 1301 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1302 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1303 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1304 #else 1305 rsa_tmp=rsa_tmp_export=0; 1306 #endif 1307 #ifndef NO_DH 1308 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1309 dh_tmp_export=(c->dh_tmp_cb != NULL || 1310 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1311 #else 1312 dh_tmp=dh_tmp_export=0; 1313 #endif 1314 1315 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1316 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1317 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1318 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1319 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1320 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1321 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1322 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1323 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1324 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1325 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1326 /* FIX THIS EAY EAY EAY */ 1327 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1328 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1329 1330 mask=0; 1331 emask=0; 1332 1333 #ifdef CIPHER_DEBUG 1334 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1335 rsa_tmp,rsa_tmp_export,dh_tmp, 1336 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1337 #endif 1338 1339 if (rsa_enc || (rsa_tmp && rsa_sign)) 1340 mask|=SSL_kRSA; 1341 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1342 emask|=SSL_kRSA; 1343 1344 #if 0 1345 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1346 if ( (dh_tmp || dh_rsa || dh_dsa) && 1347 (rsa_enc || rsa_sign || dsa_sign)) 1348 mask|=SSL_kEDH; 1349 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1350 (rsa_enc || rsa_sign || dsa_sign)) 1351 emask|=SSL_kEDH; 1352 #endif 1353 1354 if (dh_tmp_export) 1355 emask|=SSL_kEDH; 1356 1357 if (dh_tmp) 1358 mask|=SSL_kEDH; 1359 1360 if (dh_rsa) mask|=SSL_kDHr; 1361 if (dh_rsa_export) emask|=SSL_kDHr; 1362 1363 if (dh_dsa) mask|=SSL_kDHd; 1364 if (dh_dsa_export) emask|=SSL_kDHd; 1365 1366 if (rsa_enc || rsa_sign) 1367 { 1368 mask|=SSL_aRSA; 1369 emask|=SSL_aRSA; 1370 } 1371 1372 if (dsa_sign) 1373 { 1374 mask|=SSL_aDSS; 1375 emask|=SSL_aDSS; 1376 } 1377 1378 mask|=SSL_aNULL; 1379 emask|=SSL_aNULL; 1380 1381 c->mask=mask; 1382 c->export_mask=emask; 1383 c->valid=1; 1384 } 1385 1386 /* THIS NEEDS CLEANING UP */ 1387 X509 *ssl_get_server_send_cert(SSL *s) 1388 { 1389 unsigned long alg,mask,kalg; 1390 CERT *c; 1391 int i,is_export; 1392 1393 c=s->cert; 1394 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 1395 alg=s->s3->tmp.new_cipher->algorithms; 1396 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 1397 mask=is_export?c->export_mask:c->mask; 1398 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1399 1400 if (kalg & SSL_kDHr) 1401 i=SSL_PKEY_DH_RSA; 1402 else if (kalg & SSL_kDHd) 1403 i=SSL_PKEY_DH_DSA; 1404 else if (kalg & SSL_aDSS) 1405 i=SSL_PKEY_DSA_SIGN; 1406 else if (kalg & SSL_aRSA) 1407 { 1408 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1409 i=SSL_PKEY_RSA_SIGN; 1410 else 1411 i=SSL_PKEY_RSA_ENC; 1412 } 1413 else /* if (kalg & SSL_aNULL) */ 1414 { 1415 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR); 1416 return(NULL); 1417 } 1418 if (c->pkeys[i].x509 == NULL) return(NULL); 1419 return(c->pkeys[i].x509); 1420 } 1421 1422 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher) 1423 { 1424 unsigned long alg; 1425 CERT *c; 1426 1427 alg=cipher->algorithms; 1428 c=s->cert; 1429 1430 if ((alg & SSL_aDSS) && 1431 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 1432 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 1433 else if (alg & SSL_aRSA) 1434 { 1435 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 1436 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 1437 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 1438 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 1439 else 1440 return(NULL); 1441 } 1442 else /* if (alg & SSL_aNULL) */ 1443 { 1444 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR); 1445 return(NULL); 1446 } 1447 } 1448 1449 void ssl_update_cache(SSL *s,int mode) 1450 { 1451 int i; 1452 1453 /* If the session_id_length is 0, we are not supposed to cache it, 1454 * and it would be rather hard to do anyway :-) */ 1455 if (s->session->session_id_length == 0) return; 1456 1457 if ((s->ctx->session_cache_mode & mode) 1458 && (!s->hit) 1459 && SSL_CTX_add_session(s->ctx,s->session) 1460 && (s->ctx->new_session_cb != NULL)) 1461 { 1462 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 1463 if (!s->ctx->new_session_cb(s,s->session)) 1464 SSL_SESSION_free(s->session); 1465 } 1466 1467 /* auto flush every 255 connections */ 1468 i=s->ctx->session_cache_mode; 1469 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 1470 ((i & mode) == mode)) 1471 { 1472 if ( (((mode & SSL_SESS_CACHE_CLIENT) 1473 ?s->ctx->stats.sess_connect_good 1474 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff) 1475 { 1476 SSL_CTX_flush_sessions(s->ctx,time(NULL)); 1477 } 1478 } 1479 } 1480 1481 SSL_METHOD *SSL_get_ssl_method(SSL *s) 1482 { 1483 return(s->method); 1484 } 1485 1486 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth) 1487 { 1488 int conn= -1; 1489 int ret=1; 1490 1491 if (s->method != meth) 1492 { 1493 if (s->handshake_func != NULL) 1494 conn=(s->handshake_func == s->method->ssl_connect); 1495 1496 if (s->method->version == meth->version) 1497 s->method=meth; 1498 else 1499 { 1500 s->method->ssl_free(s); 1501 s->method=meth; 1502 ret=s->method->ssl_new(s); 1503 } 1504 1505 if (conn == 1) 1506 s->handshake_func=meth->ssl_connect; 1507 else if (conn == 0) 1508 s->handshake_func=meth->ssl_accept; 1509 } 1510 return(ret); 1511 } 1512 1513 int SSL_get_error(SSL *s,int i) 1514 { 1515 int reason; 1516 unsigned long l; 1517 BIO *bio; 1518 1519 if (i > 0) return(SSL_ERROR_NONE); 1520 1521 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 1522 * etc, where we do encode the error */ 1523 if ((l=ERR_peek_error()) != 0) 1524 { 1525 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 1526 return(SSL_ERROR_SYSCALL); 1527 else 1528 return(SSL_ERROR_SSL); 1529 } 1530 1531 if ((i < 0) && SSL_want_read(s)) 1532 { 1533 bio=SSL_get_rbio(s); 1534 if (BIO_should_read(bio)) 1535 return(SSL_ERROR_WANT_READ); 1536 else if (BIO_should_write(bio)) 1537 /* This one doesn't make too much sense ... We never try 1538 * to write to the rbio, and an application program where 1539 * rbio and wbio are separate couldn't even know what it 1540 * should wait for. 1541 * However if we ever set s->rwstate incorrectly 1542 * (so that we have SSL_want_read(s) instead of 1543 * SSL_want_write(s)) and rbio and wbio *are* the same, 1544 * this test works around that bug; so it might be safer 1545 * to keep it. */ 1546 return(SSL_ERROR_WANT_WRITE); 1547 else if (BIO_should_io_special(bio)) 1548 { 1549 reason=BIO_get_retry_reason(bio); 1550 if (reason == BIO_RR_CONNECT) 1551 return(SSL_ERROR_WANT_CONNECT); 1552 else 1553 return(SSL_ERROR_SYSCALL); /* unknown */ 1554 } 1555 } 1556 1557 if ((i < 0) && SSL_want_write(s)) 1558 { 1559 bio=SSL_get_wbio(s); 1560 if (BIO_should_write(bio)) 1561 return(SSL_ERROR_WANT_WRITE); 1562 else if (BIO_should_read(bio)) 1563 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 1564 return(SSL_ERROR_WANT_READ); 1565 else if (BIO_should_io_special(bio)) 1566 { 1567 reason=BIO_get_retry_reason(bio); 1568 if (reason == BIO_RR_CONNECT) 1569 return(SSL_ERROR_WANT_CONNECT); 1570 else 1571 return(SSL_ERROR_SYSCALL); 1572 } 1573 } 1574 if ((i < 0) && SSL_want_x509_lookup(s)) 1575 { 1576 return(SSL_ERROR_WANT_X509_LOOKUP); 1577 } 1578 1579 if (i == 0) 1580 { 1581 if (s->version == SSL2_VERSION) 1582 { 1583 /* assume it is the socket being closed */ 1584 return(SSL_ERROR_ZERO_RETURN); 1585 } 1586 else 1587 { 1588 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 1589 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 1590 return(SSL_ERROR_ZERO_RETURN); 1591 } 1592 } 1593 return(SSL_ERROR_SYSCALL); 1594 } 1595 1596 int SSL_do_handshake(SSL *s) 1597 { 1598 int ret=1; 1599 1600 if (s->handshake_func == NULL) 1601 { 1602 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 1603 return(-1); 1604 } 1605 1606 s->method->ssl_renegotiate_check(s); 1607 1608 if (SSL_in_init(s) || SSL_in_before(s)) 1609 { 1610 ret=s->handshake_func(s); 1611 } 1612 return(ret); 1613 } 1614 1615 /* For the next 2 functions, SSL_clear() sets shutdown and so 1616 * one of these calls will reset it */ 1617 void SSL_set_accept_state(SSL *s) 1618 { 1619 s->server=1; 1620 s->shutdown=0; 1621 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 1622 s->handshake_func=s->method->ssl_accept; 1623 /* clear the current cipher */ 1624 ssl_clear_cipher_ctx(s); 1625 } 1626 1627 void SSL_set_connect_state(SSL *s) 1628 { 1629 s->server=0; 1630 s->shutdown=0; 1631 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 1632 s->handshake_func=s->method->ssl_connect; 1633 /* clear the current cipher */ 1634 ssl_clear_cipher_ctx(s); 1635 } 1636 1637 int ssl_undefined_function(SSL *s) 1638 { 1639 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1640 return(0); 1641 } 1642 1643 SSL_METHOD *ssl_bad_method(int ver) 1644 { 1645 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1646 return(NULL); 1647 } 1648 1649 const char *SSL_get_version(SSL *s) 1650 { 1651 if (s->version == TLS1_VERSION) 1652 return("TLSv1"); 1653 else if (s->version == SSL3_VERSION) 1654 return("SSLv3"); 1655 else if (s->version == SSL2_VERSION) 1656 return("SSLv2"); 1657 else 1658 return("unknown"); 1659 } 1660 1661 SSL *SSL_dup(SSL *s) 1662 { 1663 STACK_OF(X509_NAME) *sk; 1664 X509_NAME *xn; 1665 SSL *ret; 1666 int i; 1667 1668 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 1669 return(NULL); 1670 1671 if (s->session != NULL) 1672 { 1673 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 1674 SSL_copy_session_id(ret,s); 1675 } 1676 else 1677 { 1678 /* No session has been established yet, so we have to expect 1679 * that s->cert or ret->cert will be changed later -- 1680 * they should not both point to the same object, 1681 * and thus we can't use SSL_copy_session_id. */ 1682 1683 ret->method = s->method; 1684 ret->method->ssl_new(ret); 1685 1686 if (s->cert != NULL) 1687 { 1688 if (ret->cert != NULL) 1689 { 1690 ssl_cert_free(ret->cert); 1691 } 1692 ret->cert = ssl_cert_dup(s->cert); 1693 if (ret->cert == NULL) 1694 goto err; 1695 } 1696 1697 SSL_set_session_id_context(ret, 1698 s->sid_ctx, s->sid_ctx_length); 1699 } 1700 1701 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 1702 SSL_set_verify(ret,SSL_get_verify_mode(s), 1703 SSL_get_verify_callback(s)); 1704 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 1705 1706 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 1707 1708 ret->debug=s->debug; 1709 ret->options=s->options; 1710 1711 /* copy app data, a little dangerous perhaps */ 1712 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data)) 1713 goto err; 1714 1715 /* setup rbio, and wbio */ 1716 if (s->rbio != NULL) 1717 { 1718 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 1719 goto err; 1720 } 1721 if (s->wbio != NULL) 1722 { 1723 if (s->wbio != s->rbio) 1724 { 1725 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 1726 goto err; 1727 } 1728 else 1729 ret->wbio=ret->rbio; 1730 } 1731 1732 /* dup the cipher_list and cipher_list_by_id stacks */ 1733 if (s->cipher_list != NULL) 1734 { 1735 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 1736 goto err; 1737 } 1738 if (s->cipher_list_by_id != NULL) 1739 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 1740 == NULL) 1741 goto err; 1742 1743 /* Dup the client_CA list */ 1744 if (s->client_CA != NULL) 1745 { 1746 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 1747 ret->client_CA=sk; 1748 for (i=0; i<sk_X509_NAME_num(sk); i++) 1749 { 1750 xn=sk_X509_NAME_value(sk,i); 1751 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 1752 { 1753 X509_NAME_free(xn); 1754 goto err; 1755 } 1756 } 1757 } 1758 1759 ret->shutdown=s->shutdown; 1760 ret->state=s->state; 1761 ret->handshake_func=s->handshake_func; 1762 ret->server=s->server; 1763 1764 if (0) 1765 { 1766 err: 1767 if (ret != NULL) SSL_free(ret); 1768 ret=NULL; 1769 } 1770 return(ret); 1771 } 1772 1773 void ssl_clear_cipher_ctx(SSL *s) 1774 { 1775 if (s->enc_read_ctx != NULL) 1776 { 1777 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 1778 OPENSSL_free(s->enc_read_ctx); 1779 s->enc_read_ctx=NULL; 1780 } 1781 if (s->enc_write_ctx != NULL) 1782 { 1783 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 1784 OPENSSL_free(s->enc_write_ctx); 1785 s->enc_write_ctx=NULL; 1786 } 1787 if (s->expand != NULL) 1788 { 1789 COMP_CTX_free(s->expand); 1790 s->expand=NULL; 1791 } 1792 if (s->compress != NULL) 1793 { 1794 COMP_CTX_free(s->compress); 1795 s->compress=NULL; 1796 } 1797 } 1798 1799 /* Fix this function so that it takes an optional type parameter */ 1800 X509 *SSL_get_certificate(SSL *s) 1801 { 1802 if (s->cert != NULL) 1803 return(s->cert->key->x509); 1804 else 1805 return(NULL); 1806 } 1807 1808 /* Fix this function so that it takes an optional type parameter */ 1809 EVP_PKEY *SSL_get_privatekey(SSL *s) 1810 { 1811 if (s->cert != NULL) 1812 return(s->cert->key->privatekey); 1813 else 1814 return(NULL); 1815 } 1816 1817 SSL_CIPHER *SSL_get_current_cipher(SSL *s) 1818 { 1819 if ((s->session != NULL) && (s->session->cipher != NULL)) 1820 return(s->session->cipher); 1821 return(NULL); 1822 } 1823 1824 int ssl_init_wbio_buffer(SSL *s,int push) 1825 { 1826 BIO *bbio; 1827 1828 if (s->bbio == NULL) 1829 { 1830 bbio=BIO_new(BIO_f_buffer()); 1831 if (bbio == NULL) return(0); 1832 s->bbio=bbio; 1833 } 1834 else 1835 { 1836 bbio=s->bbio; 1837 if (s->bbio == s->wbio) 1838 s->wbio=BIO_pop(s->wbio); 1839 } 1840 (void)BIO_reset(bbio); 1841 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 1842 if (!BIO_set_read_buffer_size(bbio,1)) 1843 { 1844 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 1845 return(0); 1846 } 1847 if (push) 1848 { 1849 if (s->wbio != bbio) 1850 s->wbio=BIO_push(bbio,s->wbio); 1851 } 1852 else 1853 { 1854 if (s->wbio == bbio) 1855 s->wbio=BIO_pop(bbio); 1856 } 1857 return(1); 1858 } 1859 1860 void ssl_free_wbio_buffer(SSL *s) 1861 { 1862 if (s->bbio == NULL) return; 1863 1864 if (s->bbio == s->wbio) 1865 { 1866 /* remove buffering */ 1867 s->wbio=BIO_pop(s->wbio); 1868 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */ 1869 assert(s->wbio != NULL); 1870 #endif 1871 } 1872 BIO_free(s->bbio); 1873 s->bbio=NULL; 1874 } 1875 1876 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 1877 { 1878 ctx->quiet_shutdown=mode; 1879 } 1880 1881 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx) 1882 { 1883 return(ctx->quiet_shutdown); 1884 } 1885 1886 void SSL_set_quiet_shutdown(SSL *s,int mode) 1887 { 1888 s->quiet_shutdown=mode; 1889 } 1890 1891 int SSL_get_quiet_shutdown(SSL *s) 1892 { 1893 return(s->quiet_shutdown); 1894 } 1895 1896 void SSL_set_shutdown(SSL *s,int mode) 1897 { 1898 s->shutdown=mode; 1899 } 1900 1901 int SSL_get_shutdown(SSL *s) 1902 { 1903 return(s->shutdown); 1904 } 1905 1906 int SSL_version(SSL *s) 1907 { 1908 return(s->version); 1909 } 1910 1911 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl) 1912 { 1913 return(ssl->ctx); 1914 } 1915 1916 #ifndef NO_STDIO 1917 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 1918 { 1919 return(X509_STORE_set_default_paths(ctx->cert_store)); 1920 } 1921 1922 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 1923 const char *CApath) 1924 { 1925 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 1926 } 1927 #endif 1928 1929 void SSL_set_info_callback(SSL *ssl,void (*cb)()) 1930 { 1931 ssl->info_callback=cb; 1932 } 1933 1934 void (*SSL_get_info_callback(SSL *ssl))(void) 1935 { 1936 return((void (*)())ssl->info_callback); 1937 } 1938 1939 int SSL_state(SSL *ssl) 1940 { 1941 return(ssl->state); 1942 } 1943 1944 void SSL_set_verify_result(SSL *ssl,long arg) 1945 { 1946 ssl->verify_result=arg; 1947 } 1948 1949 long SSL_get_verify_result(SSL *ssl) 1950 { 1951 return(ssl->verify_result); 1952 } 1953 1954 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 1955 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 1956 { 1957 ssl_meth_num++; 1958 return(CRYPTO_get_ex_new_index(ssl_meth_num-1, 1959 &ssl_meth,argl,argp,new_func,dup_func,free_func)); 1960 } 1961 1962 int SSL_set_ex_data(SSL *s,int idx,void *arg) 1963 { 1964 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1965 } 1966 1967 void *SSL_get_ex_data(SSL *s,int idx) 1968 { 1969 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1970 } 1971 1972 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 1973 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 1974 { 1975 ssl_ctx_meth_num++; 1976 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1, 1977 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func)); 1978 } 1979 1980 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 1981 { 1982 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1983 } 1984 1985 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx) 1986 { 1987 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1988 } 1989 1990 int ssl_ok(SSL *s) 1991 { 1992 return(1); 1993 } 1994 1995 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx) 1996 { 1997 return(ctx->cert_store); 1998 } 1999 2000 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 2001 { 2002 if (ctx->cert_store != NULL) 2003 X509_STORE_free(ctx->cert_store); 2004 ctx->cert_store=store; 2005 } 2006 2007 int SSL_want(SSL *s) 2008 { 2009 return(s->rwstate); 2010 } 2011 2012 /*! 2013 * \brief Set the callback for generating temporary RSA keys. 2014 * \param ctx the SSL context. 2015 * \param cb the callback 2016 */ 2017 2018 #ifndef NO_RSA 2019 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2020 int is_export, 2021 int keylength)) 2022 { 2023 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2024 } 2025 2026 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2027 int is_export, 2028 int keylength)) 2029 { 2030 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2031 } 2032 #endif 2033 2034 #ifdef DOXYGEN 2035 /*! 2036 * \brief The RSA temporary key callback function. 2037 * \param ssl the SSL session. 2038 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2039 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2040 * of the required key in bits. 2041 * \return the temporary RSA key. 2042 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2043 */ 2044 2045 RSA *cb(SSL *ssl,int is_export,int keylength) 2046 {} 2047 #endif 2048 2049 /*! 2050 * \brief Set the callback for generating temporary DH keys. 2051 * \param ctx the SSL context. 2052 * \param dh the callback 2053 */ 2054 2055 #ifndef NO_DH 2056 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2057 int keylength)) 2058 { 2059 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2060 } 2061 2062 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2063 int keylength)) 2064 { 2065 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2066 } 2067 #endif 2068 2069 #if defined(_WINDLL) && defined(WIN16) 2070 #include "../crypto/bio/bss_file.c" 2071 #endif 2072 2073 IMPLEMENT_STACK_OF(SSL_CIPHER) 2074 IMPLEMENT_STACK_OF(SSL_COMP) 2075