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,char *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,char *buf,int num) 728 { 729 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 730 { 731 return(0); 732 } 733 return(s->method->ssl_peek(s,buf,num)); 734 } 735 736 int SSL_write(SSL *s,const char *buf,int num) 737 { 738 if (s->handshake_func == 0) 739 { 740 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); 741 return -1; 742 } 743 744 if (s->shutdown & SSL_SENT_SHUTDOWN) 745 { 746 s->rwstate=SSL_NOTHING; 747 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 748 return(-1); 749 } 750 return(s->method->ssl_write(s,buf,num)); 751 } 752 753 int SSL_shutdown(SSL *s) 754 { 755 /* Note that this function behaves differently from what one might 756 * expect. Return values are 0 for no success (yet), 757 * 1 for success; but calling it once is usually not enough, 758 * even if blocking I/O is used (see ssl3_shutdown). 759 */ 760 761 if (s->handshake_func == 0) 762 { 763 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); 764 return -1; 765 } 766 767 if ((s != NULL) && !SSL_in_init(s)) 768 return(s->method->ssl_shutdown(s)); 769 else 770 return(1); 771 } 772 773 int SSL_renegotiate(SSL *s) 774 { 775 s->new_session=1; 776 return(s->method->ssl_renegotiate(s)); 777 } 778 779 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg) 780 { 781 long l; 782 783 switch (cmd) 784 { 785 case SSL_CTRL_GET_READ_AHEAD: 786 return(s->read_ahead); 787 case SSL_CTRL_SET_READ_AHEAD: 788 l=s->read_ahead; 789 s->read_ahead=larg; 790 return(l); 791 case SSL_CTRL_OPTIONS: 792 return(s->options|=larg); 793 case SSL_CTRL_MODE: 794 return(s->mode|=larg); 795 default: 796 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 797 } 798 } 799 800 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)()) 801 { 802 switch(cmd) 803 { 804 default: 805 return(s->method->ssl_callback_ctrl(s,cmd,fp)); 806 } 807 } 808 809 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx) 810 { 811 return ctx->sessions; 812 } 813 814 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg) 815 { 816 long l; 817 818 switch (cmd) 819 { 820 case SSL_CTRL_GET_READ_AHEAD: 821 return(ctx->read_ahead); 822 case SSL_CTRL_SET_READ_AHEAD: 823 l=ctx->read_ahead; 824 ctx->read_ahead=larg; 825 return(l); 826 827 case SSL_CTRL_SET_SESS_CACHE_SIZE: 828 l=ctx->session_cache_size; 829 ctx->session_cache_size=larg; 830 return(l); 831 case SSL_CTRL_GET_SESS_CACHE_SIZE: 832 return(ctx->session_cache_size); 833 case SSL_CTRL_SET_SESS_CACHE_MODE: 834 l=ctx->session_cache_mode; 835 ctx->session_cache_mode=larg; 836 return(l); 837 case SSL_CTRL_GET_SESS_CACHE_MODE: 838 return(ctx->session_cache_mode); 839 840 case SSL_CTRL_SESS_NUMBER: 841 return(ctx->sessions->num_items); 842 case SSL_CTRL_SESS_CONNECT: 843 return(ctx->stats.sess_connect); 844 case SSL_CTRL_SESS_CONNECT_GOOD: 845 return(ctx->stats.sess_connect_good); 846 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: 847 return(ctx->stats.sess_connect_renegotiate); 848 case SSL_CTRL_SESS_ACCEPT: 849 return(ctx->stats.sess_accept); 850 case SSL_CTRL_SESS_ACCEPT_GOOD: 851 return(ctx->stats.sess_accept_good); 852 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: 853 return(ctx->stats.sess_accept_renegotiate); 854 case SSL_CTRL_SESS_HIT: 855 return(ctx->stats.sess_hit); 856 case SSL_CTRL_SESS_CB_HIT: 857 return(ctx->stats.sess_cb_hit); 858 case SSL_CTRL_SESS_MISSES: 859 return(ctx->stats.sess_miss); 860 case SSL_CTRL_SESS_TIMEOUTS: 861 return(ctx->stats.sess_timeout); 862 case SSL_CTRL_SESS_CACHE_FULL: 863 return(ctx->stats.sess_cache_full); 864 case SSL_CTRL_OPTIONS: 865 return(ctx->options|=larg); 866 case SSL_CTRL_MODE: 867 return(ctx->mode|=larg); 868 default: 869 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 870 } 871 } 872 873 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)()) 874 { 875 switch(cmd) 876 { 877 default: 878 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp)); 879 } 880 } 881 882 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) 883 { 884 long l; 885 886 l=a->id-b->id; 887 if (l == 0L) 888 return(0); 889 else 890 return((l > 0)?1:-1); 891 } 892 893 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 894 const SSL_CIPHER * const *bp) 895 { 896 long l; 897 898 l=(*ap)->id-(*bp)->id; 899 if (l == 0L) 900 return(0); 901 else 902 return((l > 0)?1:-1); 903 } 904 905 /** return a STACK of the ciphers available for the SSL and in order of 906 * preference */ 907 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s) 908 { 909 if ((s != NULL) && (s->cipher_list != NULL)) 910 { 911 return(s->cipher_list); 912 } 913 else if ((s->ctx != NULL) && 914 (s->ctx->cipher_list != NULL)) 915 { 916 return(s->ctx->cipher_list); 917 } 918 return(NULL); 919 } 920 921 /** return a STACK of the ciphers available for the SSL and in order of 922 * algorithm id */ 923 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) 924 { 925 if ((s != NULL) && (s->cipher_list_by_id != NULL)) 926 { 927 return(s->cipher_list_by_id); 928 } 929 else if ((s != NULL) && (s->ctx != NULL) && 930 (s->ctx->cipher_list_by_id != NULL)) 931 { 932 return(s->ctx->cipher_list_by_id); 933 } 934 return(NULL); 935 } 936 937 /** The old interface to get the same thing as SSL_get_ciphers() */ 938 const char *SSL_get_cipher_list(SSL *s,int n) 939 { 940 SSL_CIPHER *c; 941 STACK_OF(SSL_CIPHER) *sk; 942 943 if (s == NULL) return(NULL); 944 sk=SSL_get_ciphers(s); 945 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) 946 return(NULL); 947 c=sk_SSL_CIPHER_value(sk,n); 948 if (c == NULL) return(NULL); 949 return(c->name); 950 } 951 952 /** specify the ciphers to be used by default by the SSL_CTX */ 953 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) 954 { 955 STACK_OF(SSL_CIPHER) *sk; 956 957 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 958 &ctx->cipher_list_by_id,str); 959 /* XXXX */ 960 return((sk == NULL)?0:1); 961 } 962 963 /** specify the ciphers to be used by the SSL */ 964 int SSL_set_cipher_list(SSL *s,const char *str) 965 { 966 STACK_OF(SSL_CIPHER) *sk; 967 968 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 969 &s->cipher_list_by_id,str); 970 /* XXXX */ 971 return((sk == NULL)?0:1); 972 } 973 974 /* works well for SSLv2, not so good for SSLv3 */ 975 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len) 976 { 977 char *p; 978 const char *cp; 979 STACK_OF(SSL_CIPHER) *sk; 980 SSL_CIPHER *c; 981 int i; 982 983 if ((s->session == NULL) || (s->session->ciphers == NULL) || 984 (len < 2)) 985 return(NULL); 986 987 p=buf; 988 sk=s->session->ciphers; 989 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 990 { 991 /* Decrement for either the ':' or a '\0' */ 992 len--; 993 c=sk_SSL_CIPHER_value(sk,i); 994 for (cp=c->name; *cp; ) 995 { 996 if (len-- == 0) 997 { 998 *p='\0'; 999 return(buf); 1000 } 1001 else 1002 *(p++)= *(cp++); 1003 } 1004 *(p++)=':'; 1005 } 1006 p[-1]='\0'; 1007 return(buf); 1008 } 1009 1010 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p) 1011 { 1012 int i,j=0; 1013 SSL_CIPHER *c; 1014 unsigned char *q; 1015 1016 if (sk == NULL) return(0); 1017 q=p; 1018 1019 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 1020 { 1021 c=sk_SSL_CIPHER_value(sk,i); 1022 j=ssl_put_cipher_by_char(s,c,p); 1023 p+=j; 1024 } 1025 return(p-q); 1026 } 1027 1028 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 1029 STACK_OF(SSL_CIPHER) **skp) 1030 { 1031 SSL_CIPHER *c; 1032 STACK_OF(SSL_CIPHER) *sk; 1033 int i,n; 1034 1035 n=ssl_put_cipher_by_char(s,NULL,NULL); 1036 if ((num%n) != 0) 1037 { 1038 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 1039 return(NULL); 1040 } 1041 if ((skp == NULL) || (*skp == NULL)) 1042 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */ 1043 else 1044 { 1045 sk= *skp; 1046 sk_SSL_CIPHER_zero(sk); 1047 } 1048 1049 for (i=0; i<num; i+=n) 1050 { 1051 c=ssl_get_cipher_by_char(s,p); 1052 p+=n; 1053 if (c != NULL) 1054 { 1055 if (!sk_SSL_CIPHER_push(sk,c)) 1056 { 1057 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 1058 goto err; 1059 } 1060 } 1061 } 1062 1063 if (skp != NULL) 1064 *skp=sk; 1065 return(sk); 1066 err: 1067 if ((skp == NULL) || (*skp == NULL)) 1068 sk_SSL_CIPHER_free(sk); 1069 return(NULL); 1070 } 1071 1072 unsigned long SSL_SESSION_hash(SSL_SESSION *a) 1073 { 1074 unsigned long l; 1075 1076 l=(unsigned long) 1077 ((unsigned int) a->session_id[0] )| 1078 ((unsigned int) a->session_id[1]<< 8L)| 1079 ((unsigned long)a->session_id[2]<<16L)| 1080 ((unsigned long)a->session_id[3]<<24L); 1081 return(l); 1082 } 1083 1084 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b) 1085 { 1086 if (a->ssl_version != b->ssl_version) 1087 return(1); 1088 if (a->session_id_length != b->session_id_length) 1089 return(1); 1090 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 1091 } 1092 1093 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth) 1094 { 1095 SSL_CTX *ret=NULL; 1096 1097 if (meth == NULL) 1098 { 1099 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 1100 return(NULL); 1101 } 1102 1103 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) 1104 { 1105 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); 1106 goto err; 1107 } 1108 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); 1109 if (ret == NULL) 1110 goto err; 1111 1112 memset(ret,0,sizeof(SSL_CTX)); 1113 1114 ret->method=meth; 1115 1116 ret->cert_store=NULL; 1117 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 1118 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 1119 ret->session_cache_head=NULL; 1120 ret->session_cache_tail=NULL; 1121 1122 /* We take the system default */ 1123 ret->session_timeout=meth->get_timeout(); 1124 1125 ret->new_session_cb=NULL; 1126 ret->remove_session_cb=NULL; 1127 ret->get_session_cb=NULL; 1128 1129 memset((char *)&ret->stats,0,sizeof(ret->stats)); 1130 1131 ret->references=1; 1132 ret->quiet_shutdown=0; 1133 1134 /* ret->cipher=NULL;*/ 1135 /* ret->s2->challenge=NULL; 1136 ret->master_key=NULL; 1137 ret->key_arg=NULL; 1138 ret->s2->conn_id=NULL; */ 1139 1140 ret->info_callback=NULL; 1141 1142 ret->app_verify_callback=NULL; 1143 ret->app_verify_arg=NULL; 1144 1145 ret->read_ahead=0; 1146 ret->verify_mode=SSL_VERIFY_NONE; 1147 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */ 1148 ret->default_verify_callback=NULL; 1149 if ((ret->cert=ssl_cert_new()) == NULL) 1150 goto err; 1151 1152 ret->default_passwd_callback=NULL; 1153 ret->default_passwd_callback_userdata=NULL; 1154 ret->client_cert_cb=NULL; 1155 1156 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp); 1157 if (ret->sessions == NULL) goto err; 1158 ret->cert_store=X509_STORE_new(); 1159 if (ret->cert_store == NULL) goto err; 1160 1161 ssl_create_cipher_list(ret->method, 1162 &ret->cipher_list,&ret->cipher_list_by_id, 1163 SSL_DEFAULT_CIPHER_LIST); 1164 if (ret->cipher_list == NULL 1165 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) 1166 { 1167 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 1168 goto err2; 1169 } 1170 1171 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 1172 { 1173 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 1174 goto err2; 1175 } 1176 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 1177 { 1178 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 1179 goto err2; 1180 } 1181 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 1182 { 1183 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 1184 goto err2; 1185 } 1186 1187 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL) 1188 goto err; 1189 1190 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data); 1191 1192 ret->extra_certs=NULL; 1193 ret->comp_methods=SSL_COMP_get_compression_methods(); 1194 1195 return(ret); 1196 err: 1197 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 1198 err2: 1199 if (ret != NULL) SSL_CTX_free(ret); 1200 return(NULL); 1201 } 1202 1203 static void SSL_COMP_free(SSL_COMP *comp) 1204 { OPENSSL_free(comp); } 1205 1206 void SSL_CTX_free(SSL_CTX *a) 1207 { 1208 int i; 1209 1210 if (a == NULL) return; 1211 1212 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 1213 #ifdef REF_PRINT 1214 REF_PRINT("SSL_CTX",a); 1215 #endif 1216 if (i > 0) return; 1217 #ifdef REF_CHECK 1218 if (i < 0) 1219 { 1220 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 1221 abort(); /* ok */ 1222 } 1223 #endif 1224 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data); 1225 1226 if (a->sessions != NULL) 1227 { 1228 SSL_CTX_flush_sessions(a,0); 1229 lh_free(a->sessions); 1230 } 1231 if (a->cert_store != NULL) 1232 X509_STORE_free(a->cert_store); 1233 if (a->cipher_list != NULL) 1234 sk_SSL_CIPHER_free(a->cipher_list); 1235 if (a->cipher_list_by_id != NULL) 1236 sk_SSL_CIPHER_free(a->cipher_list_by_id); 1237 if (a->cert != NULL) 1238 ssl_cert_free(a->cert); 1239 if (a->client_CA != NULL) 1240 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free); 1241 if (a->extra_certs != NULL) 1242 sk_X509_pop_free(a->extra_certs,X509_free); 1243 if (a->comp_methods != NULL) 1244 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free); 1245 OPENSSL_free(a); 1246 } 1247 1248 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) 1249 { 1250 ctx->default_passwd_callback=cb; 1251 } 1252 1253 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u) 1254 { 1255 ctx->default_passwd_callback_userdata=u; 1256 } 1257 1258 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg) 1259 { 1260 /* now 1261 * int (*cb)(X509_STORE_CTX *), 1262 * but should be 1263 * int (*cb)(X509_STORE_CTX *, void *arg) 1264 */ 1265 ctx->app_verify_callback=cb; 1266 ctx->app_verify_arg=arg; /* never used */ 1267 } 1268 1269 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *)) 1270 { 1271 ctx->verify_mode=mode; 1272 ctx->default_verify_callback=cb; 1273 /* This needs cleaning up EAY EAY EAY */ 1274 X509_STORE_set_verify_cb_func(ctx->cert_store,cb); 1275 } 1276 1277 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth) 1278 { 1279 ctx->verify_depth=depth; 1280 } 1281 1282 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher) 1283 { 1284 CERT_PKEY *cpk; 1285 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1286 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1287 int rsa_tmp_export,dh_tmp_export,kl; 1288 unsigned long mask,emask; 1289 1290 if (c == NULL) return; 1291 1292 kl=SSL_C_EXPORT_PKEYLENGTH(cipher); 1293 1294 #ifndef NO_RSA 1295 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); 1296 rsa_tmp_export=(c->rsa_tmp_cb != NULL || 1297 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl)); 1298 #else 1299 rsa_tmp=rsa_tmp_export=0; 1300 #endif 1301 #ifndef NO_DH 1302 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL); 1303 dh_tmp_export=(c->dh_tmp_cb != NULL || 1304 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl)); 1305 #else 1306 dh_tmp=dh_tmp_export=0; 1307 #endif 1308 1309 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1310 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL); 1311 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1312 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1313 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1314 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1315 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL); 1316 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1317 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1318 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1319 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1320 /* FIX THIS EAY EAY EAY */ 1321 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL); 1322 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl); 1323 1324 mask=0; 1325 emask=0; 1326 1327 #ifdef CIPHER_DEBUG 1328 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1329 rsa_tmp,rsa_tmp_export,dh_tmp, 1330 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1331 #endif 1332 1333 if (rsa_enc || (rsa_tmp && rsa_sign)) 1334 mask|=SSL_kRSA; 1335 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) 1336 emask|=SSL_kRSA; 1337 1338 #if 0 1339 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1340 if ( (dh_tmp || dh_rsa || dh_dsa) && 1341 (rsa_enc || rsa_sign || dsa_sign)) 1342 mask|=SSL_kEDH; 1343 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1344 (rsa_enc || rsa_sign || dsa_sign)) 1345 emask|=SSL_kEDH; 1346 #endif 1347 1348 if (dh_tmp_export) 1349 emask|=SSL_kEDH; 1350 1351 if (dh_tmp) 1352 mask|=SSL_kEDH; 1353 1354 if (dh_rsa) mask|=SSL_kDHr; 1355 if (dh_rsa_export) emask|=SSL_kDHr; 1356 1357 if (dh_dsa) mask|=SSL_kDHd; 1358 if (dh_dsa_export) emask|=SSL_kDHd; 1359 1360 if (rsa_enc || rsa_sign) 1361 { 1362 mask|=SSL_aRSA; 1363 emask|=SSL_aRSA; 1364 } 1365 1366 if (dsa_sign) 1367 { 1368 mask|=SSL_aDSS; 1369 emask|=SSL_aDSS; 1370 } 1371 1372 mask|=SSL_aNULL; 1373 emask|=SSL_aNULL; 1374 1375 c->mask=mask; 1376 c->export_mask=emask; 1377 c->valid=1; 1378 } 1379 1380 /* THIS NEEDS CLEANING UP */ 1381 X509 *ssl_get_server_send_cert(SSL *s) 1382 { 1383 unsigned long alg,mask,kalg; 1384 CERT *c; 1385 int i,is_export; 1386 1387 c=s->cert; 1388 ssl_set_cert_masks(c, s->s3->tmp.new_cipher); 1389 alg=s->s3->tmp.new_cipher->algorithms; 1390 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher); 1391 mask=is_export?c->export_mask:c->mask; 1392 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1393 1394 if (kalg & SSL_kDHr) 1395 i=SSL_PKEY_DH_RSA; 1396 else if (kalg & SSL_kDHd) 1397 i=SSL_PKEY_DH_DSA; 1398 else if (kalg & SSL_aDSS) 1399 i=SSL_PKEY_DSA_SIGN; 1400 else if (kalg & SSL_aRSA) 1401 { 1402 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1403 i=SSL_PKEY_RSA_SIGN; 1404 else 1405 i=SSL_PKEY_RSA_ENC; 1406 } 1407 else /* if (kalg & SSL_aNULL) */ 1408 { 1409 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR); 1410 return(NULL); 1411 } 1412 if (c->pkeys[i].x509 == NULL) return(NULL); 1413 return(c->pkeys[i].x509); 1414 } 1415 1416 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher) 1417 { 1418 unsigned long alg; 1419 CERT *c; 1420 1421 alg=cipher->algorithms; 1422 c=s->cert; 1423 1424 if ((alg & SSL_aDSS) && 1425 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 1426 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 1427 else if (alg & SSL_aRSA) 1428 { 1429 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 1430 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 1431 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 1432 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 1433 else 1434 return(NULL); 1435 } 1436 else /* if (alg & SSL_aNULL) */ 1437 { 1438 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR); 1439 return(NULL); 1440 } 1441 } 1442 1443 void ssl_update_cache(SSL *s,int mode) 1444 { 1445 int i; 1446 1447 /* If the session_id_length is 0, we are not supposed to cache it, 1448 * and it would be rather hard to do anyway :-) */ 1449 if (s->session->session_id_length == 0) return; 1450 1451 if ((s->ctx->session_cache_mode & mode) 1452 && (!s->hit) 1453 && SSL_CTX_add_session(s->ctx,s->session) 1454 && (s->ctx->new_session_cb != NULL)) 1455 { 1456 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 1457 if (!s->ctx->new_session_cb(s,s->session)) 1458 SSL_SESSION_free(s->session); 1459 } 1460 1461 /* auto flush every 255 connections */ 1462 i=s->ctx->session_cache_mode; 1463 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 1464 ((i & mode) == mode)) 1465 { 1466 if ( (((mode & SSL_SESS_CACHE_CLIENT) 1467 ?s->ctx->stats.sess_connect_good 1468 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff) 1469 { 1470 SSL_CTX_flush_sessions(s->ctx,time(NULL)); 1471 } 1472 } 1473 } 1474 1475 SSL_METHOD *SSL_get_ssl_method(SSL *s) 1476 { 1477 return(s->method); 1478 } 1479 1480 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth) 1481 { 1482 int conn= -1; 1483 int ret=1; 1484 1485 if (s->method != meth) 1486 { 1487 if (s->handshake_func != NULL) 1488 conn=(s->handshake_func == s->method->ssl_connect); 1489 1490 if (s->method->version == meth->version) 1491 s->method=meth; 1492 else 1493 { 1494 s->method->ssl_free(s); 1495 s->method=meth; 1496 ret=s->method->ssl_new(s); 1497 } 1498 1499 if (conn == 1) 1500 s->handshake_func=meth->ssl_connect; 1501 else if (conn == 0) 1502 s->handshake_func=meth->ssl_accept; 1503 } 1504 return(ret); 1505 } 1506 1507 int SSL_get_error(SSL *s,int i) 1508 { 1509 int reason; 1510 unsigned long l; 1511 BIO *bio; 1512 1513 if (i > 0) return(SSL_ERROR_NONE); 1514 1515 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake 1516 * etc, where we do encode the error */ 1517 if ((l=ERR_peek_error()) != 0) 1518 { 1519 if (ERR_GET_LIB(l) == ERR_LIB_SYS) 1520 return(SSL_ERROR_SYSCALL); 1521 else 1522 return(SSL_ERROR_SSL); 1523 } 1524 1525 if ((i < 0) && SSL_want_read(s)) 1526 { 1527 bio=SSL_get_rbio(s); 1528 if (BIO_should_read(bio)) 1529 return(SSL_ERROR_WANT_READ); 1530 else if (BIO_should_write(bio)) 1531 /* This one doesn't make too much sense ... We never try 1532 * to write to the rbio, and an application program where 1533 * rbio and wbio are separate couldn't even know what it 1534 * should wait for. 1535 * However if we ever set s->rwstate incorrectly 1536 * (so that we have SSL_want_read(s) instead of 1537 * SSL_want_write(s)) and rbio and wbio *are* the same, 1538 * this test works around that bug; so it might be safer 1539 * to keep it. */ 1540 return(SSL_ERROR_WANT_WRITE); 1541 else if (BIO_should_io_special(bio)) 1542 { 1543 reason=BIO_get_retry_reason(bio); 1544 if (reason == BIO_RR_CONNECT) 1545 return(SSL_ERROR_WANT_CONNECT); 1546 else 1547 return(SSL_ERROR_SYSCALL); /* unknown */ 1548 } 1549 } 1550 1551 if ((i < 0) && SSL_want_write(s)) 1552 { 1553 bio=SSL_get_wbio(s); 1554 if (BIO_should_write(bio)) 1555 return(SSL_ERROR_WANT_WRITE); 1556 else if (BIO_should_read(bio)) 1557 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */ 1558 return(SSL_ERROR_WANT_READ); 1559 else if (BIO_should_io_special(bio)) 1560 { 1561 reason=BIO_get_retry_reason(bio); 1562 if (reason == BIO_RR_CONNECT) 1563 return(SSL_ERROR_WANT_CONNECT); 1564 else 1565 return(SSL_ERROR_SYSCALL); 1566 } 1567 } 1568 if ((i < 0) && SSL_want_x509_lookup(s)) 1569 { 1570 return(SSL_ERROR_WANT_X509_LOOKUP); 1571 } 1572 1573 if (i == 0) 1574 { 1575 if (s->version == SSL2_VERSION) 1576 { 1577 /* assume it is the socket being closed */ 1578 return(SSL_ERROR_ZERO_RETURN); 1579 } 1580 else 1581 { 1582 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 1583 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 1584 return(SSL_ERROR_ZERO_RETURN); 1585 } 1586 } 1587 return(SSL_ERROR_SYSCALL); 1588 } 1589 1590 int SSL_do_handshake(SSL *s) 1591 { 1592 int ret=1; 1593 1594 if (s->handshake_func == NULL) 1595 { 1596 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 1597 return(-1); 1598 } 1599 1600 s->method->ssl_renegotiate_check(s); 1601 1602 if (SSL_in_init(s) || SSL_in_before(s)) 1603 { 1604 ret=s->handshake_func(s); 1605 } 1606 return(ret); 1607 } 1608 1609 /* For the next 2 functions, SSL_clear() sets shutdown and so 1610 * one of these calls will reset it */ 1611 void SSL_set_accept_state(SSL *s) 1612 { 1613 s->server=1; 1614 s->shutdown=0; 1615 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 1616 s->handshake_func=s->method->ssl_accept; 1617 /* clear the current cipher */ 1618 ssl_clear_cipher_ctx(s); 1619 } 1620 1621 void SSL_set_connect_state(SSL *s) 1622 { 1623 s->server=0; 1624 s->shutdown=0; 1625 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 1626 s->handshake_func=s->method->ssl_connect; 1627 /* clear the current cipher */ 1628 ssl_clear_cipher_ctx(s); 1629 } 1630 1631 int ssl_undefined_function(SSL *s) 1632 { 1633 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1634 return(0); 1635 } 1636 1637 SSL_METHOD *ssl_bad_method(int ver) 1638 { 1639 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1640 return(NULL); 1641 } 1642 1643 const char *SSL_get_version(SSL *s) 1644 { 1645 if (s->version == TLS1_VERSION) 1646 return("TLSv1"); 1647 else if (s->version == SSL3_VERSION) 1648 return("SSLv3"); 1649 else if (s->version == SSL2_VERSION) 1650 return("SSLv2"); 1651 else 1652 return("unknown"); 1653 } 1654 1655 SSL *SSL_dup(SSL *s) 1656 { 1657 STACK_OF(X509_NAME) *sk; 1658 X509_NAME *xn; 1659 SSL *ret; 1660 int i; 1661 1662 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) 1663 return(NULL); 1664 1665 if (s->session != NULL) 1666 { 1667 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ 1668 SSL_copy_session_id(ret,s); 1669 } 1670 else 1671 { 1672 /* No session has been established yet, so we have to expect 1673 * that s->cert or ret->cert will be changed later -- 1674 * they should not both point to the same object, 1675 * and thus we can't use SSL_copy_session_id. */ 1676 1677 ret->method = s->method; 1678 ret->method->ssl_new(ret); 1679 1680 if (s->cert != NULL) 1681 { 1682 ret->cert = ssl_cert_dup(s->cert); 1683 if (ret->cert == NULL) 1684 goto err; 1685 } 1686 1687 SSL_set_session_id_context(ret, 1688 s->sid_ctx, s->sid_ctx_length); 1689 } 1690 1691 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 1692 SSL_set_verify(ret,SSL_get_verify_mode(s), 1693 SSL_get_verify_callback(s)); 1694 SSL_set_verify_depth(ret,SSL_get_verify_depth(s)); 1695 1696 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 1697 1698 ret->debug=s->debug; 1699 ret->options=s->options; 1700 1701 /* copy app data, a little dangerous perhaps */ 1702 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data)) 1703 goto err; 1704 1705 /* setup rbio, and wbio */ 1706 if (s->rbio != NULL) 1707 { 1708 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 1709 goto err; 1710 } 1711 if (s->wbio != NULL) 1712 { 1713 if (s->wbio != s->rbio) 1714 { 1715 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 1716 goto err; 1717 } 1718 else 1719 ret->wbio=ret->rbio; 1720 } 1721 1722 /* dup the cipher_list and cipher_list_by_id stacks */ 1723 if (s->cipher_list != NULL) 1724 { 1725 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) 1726 goto err; 1727 } 1728 if (s->cipher_list_by_id != NULL) 1729 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id)) 1730 == NULL) 1731 goto err; 1732 1733 /* Dup the client_CA list */ 1734 if (s->client_CA != NULL) 1735 { 1736 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err; 1737 ret->client_CA=sk; 1738 for (i=0; i<sk_X509_NAME_num(sk); i++) 1739 { 1740 xn=sk_X509_NAME_value(sk,i); 1741 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL) 1742 { 1743 X509_NAME_free(xn); 1744 goto err; 1745 } 1746 } 1747 } 1748 1749 ret->shutdown=s->shutdown; 1750 ret->state=s->state; 1751 ret->handshake_func=s->handshake_func; 1752 ret->server=s->server; 1753 1754 if (0) 1755 { 1756 err: 1757 if (ret != NULL) SSL_free(ret); 1758 ret=NULL; 1759 } 1760 return(ret); 1761 } 1762 1763 void ssl_clear_cipher_ctx(SSL *s) 1764 { 1765 if (s->enc_read_ctx != NULL) 1766 { 1767 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 1768 OPENSSL_free(s->enc_read_ctx); 1769 s->enc_read_ctx=NULL; 1770 } 1771 if (s->enc_write_ctx != NULL) 1772 { 1773 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 1774 OPENSSL_free(s->enc_write_ctx); 1775 s->enc_write_ctx=NULL; 1776 } 1777 if (s->expand != NULL) 1778 { 1779 COMP_CTX_free(s->expand); 1780 s->expand=NULL; 1781 } 1782 if (s->compress != NULL) 1783 { 1784 COMP_CTX_free(s->compress); 1785 s->compress=NULL; 1786 } 1787 } 1788 1789 /* Fix this function so that it takes an optional type parameter */ 1790 X509 *SSL_get_certificate(SSL *s) 1791 { 1792 if (s->cert != NULL) 1793 return(s->cert->key->x509); 1794 else 1795 return(NULL); 1796 } 1797 1798 /* Fix this function so that it takes an optional type parameter */ 1799 EVP_PKEY *SSL_get_privatekey(SSL *s) 1800 { 1801 if (s->cert != NULL) 1802 return(s->cert->key->privatekey); 1803 else 1804 return(NULL); 1805 } 1806 1807 SSL_CIPHER *SSL_get_current_cipher(SSL *s) 1808 { 1809 if ((s->session != NULL) && (s->session->cipher != NULL)) 1810 return(s->session->cipher); 1811 return(NULL); 1812 } 1813 1814 int ssl_init_wbio_buffer(SSL *s,int push) 1815 { 1816 BIO *bbio; 1817 1818 if (s->bbio == NULL) 1819 { 1820 bbio=BIO_new(BIO_f_buffer()); 1821 if (bbio == NULL) return(0); 1822 s->bbio=bbio; 1823 } 1824 else 1825 { 1826 bbio=s->bbio; 1827 if (s->bbio == s->wbio) 1828 s->wbio=BIO_pop(s->wbio); 1829 } 1830 (void)BIO_reset(bbio); 1831 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 1832 if (!BIO_set_read_buffer_size(bbio,1)) 1833 { 1834 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 1835 return(0); 1836 } 1837 if (push) 1838 { 1839 if (s->wbio != bbio) 1840 s->wbio=BIO_push(bbio,s->wbio); 1841 } 1842 else 1843 { 1844 if (s->wbio == bbio) 1845 s->wbio=BIO_pop(bbio); 1846 } 1847 return(1); 1848 } 1849 1850 void ssl_free_wbio_buffer(SSL *s) 1851 { 1852 if (s->bbio == NULL) return; 1853 1854 if (s->bbio == s->wbio) 1855 { 1856 /* remove buffering */ 1857 s->wbio=BIO_pop(s->wbio); 1858 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */ 1859 assert(s->wbio != NULL); 1860 #endif 1861 } 1862 BIO_free(s->bbio); 1863 s->bbio=NULL; 1864 } 1865 1866 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode) 1867 { 1868 ctx->quiet_shutdown=mode; 1869 } 1870 1871 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx) 1872 { 1873 return(ctx->quiet_shutdown); 1874 } 1875 1876 void SSL_set_quiet_shutdown(SSL *s,int mode) 1877 { 1878 s->quiet_shutdown=mode; 1879 } 1880 1881 int SSL_get_quiet_shutdown(SSL *s) 1882 { 1883 return(s->quiet_shutdown); 1884 } 1885 1886 void SSL_set_shutdown(SSL *s,int mode) 1887 { 1888 s->shutdown=mode; 1889 } 1890 1891 int SSL_get_shutdown(SSL *s) 1892 { 1893 return(s->shutdown); 1894 } 1895 1896 int SSL_version(SSL *s) 1897 { 1898 return(s->version); 1899 } 1900 1901 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl) 1902 { 1903 return(ssl->ctx); 1904 } 1905 1906 #ifndef NO_STDIO 1907 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) 1908 { 1909 return(X509_STORE_set_default_paths(ctx->cert_store)); 1910 } 1911 1912 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, 1913 const char *CApath) 1914 { 1915 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 1916 } 1917 #endif 1918 1919 void SSL_set_info_callback(SSL *ssl,void (*cb)()) 1920 { 1921 ssl->info_callback=cb; 1922 } 1923 1924 void (*SSL_get_info_callback(SSL *ssl))(void) 1925 { 1926 return((void (*)())ssl->info_callback); 1927 } 1928 1929 int SSL_state(SSL *ssl) 1930 { 1931 return(ssl->state); 1932 } 1933 1934 void SSL_set_verify_result(SSL *ssl,long arg) 1935 { 1936 ssl->verify_result=arg; 1937 } 1938 1939 long SSL_get_verify_result(SSL *ssl) 1940 { 1941 return(ssl->verify_result); 1942 } 1943 1944 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 1945 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 1946 { 1947 ssl_meth_num++; 1948 return(CRYPTO_get_ex_new_index(ssl_meth_num-1, 1949 &ssl_meth,argl,argp,new_func,dup_func,free_func)); 1950 } 1951 1952 int SSL_set_ex_data(SSL *s,int idx,void *arg) 1953 { 1954 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1955 } 1956 1957 void *SSL_get_ex_data(SSL *s,int idx) 1958 { 1959 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1960 } 1961 1962 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func, 1963 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func) 1964 { 1965 ssl_ctx_meth_num++; 1966 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1, 1967 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func)); 1968 } 1969 1970 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg) 1971 { 1972 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1973 } 1974 1975 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx) 1976 { 1977 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1978 } 1979 1980 int ssl_ok(SSL *s) 1981 { 1982 return(1); 1983 } 1984 1985 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx) 1986 { 1987 return(ctx->cert_store); 1988 } 1989 1990 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store) 1991 { 1992 if (ctx->cert_store != NULL) 1993 X509_STORE_free(ctx->cert_store); 1994 ctx->cert_store=store; 1995 } 1996 1997 int SSL_want(SSL *s) 1998 { 1999 return(s->rwstate); 2000 } 2001 2002 /*! 2003 * \brief Set the callback for generating temporary RSA keys. 2004 * \param ctx the SSL context. 2005 * \param cb the callback 2006 */ 2007 2008 #ifndef NO_RSA 2009 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl, 2010 int is_export, 2011 int keylength)) 2012 { 2013 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2014 } 2015 2016 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl, 2017 int is_export, 2018 int keylength)) 2019 { 2020 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb); 2021 } 2022 #endif 2023 2024 #ifdef DOXYGEN 2025 /*! 2026 * \brief The RSA temporary key callback function. 2027 * \param ssl the SSL session. 2028 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. 2029 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size 2030 * of the required key in bits. 2031 * \return the temporary RSA key. 2032 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback 2033 */ 2034 2035 RSA *cb(SSL *ssl,int is_export,int keylength) 2036 {} 2037 #endif 2038 2039 /*! 2040 * \brief Set the callback for generating temporary DH keys. 2041 * \param ctx the SSL context. 2042 * \param dh the callback 2043 */ 2044 2045 #ifndef NO_DH 2046 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export, 2047 int keylength)) 2048 { 2049 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2050 } 2051 2052 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export, 2053 int keylength)) 2054 { 2055 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh); 2056 } 2057 #endif 2058 2059 #if defined(_WINDLL) && defined(WIN16) 2060 #include "../crypto/bio/bss_file.c" 2061 #endif 2062 2063 IMPLEMENT_STACK_OF(SSL_CIPHER) 2064 IMPLEMENT_STACK_OF(SSL_COMP) 2065