1 /* ssl/ssl_lib.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <stdio.h> 60 #include "objects.h" 61 #include "lhash.h" 62 #include "ssl_locl.h" 63 64 char *SSL_version_str="SSLeay 0.9.0b 29-Jun-1998"; 65 66 static STACK *ssl_meth=NULL; 67 static STACK *ssl_ctx_meth=NULL; 68 static int ssl_meth_num=0; 69 static int ssl_ctx_meth_num=0; 70 71 SSL3_ENC_METHOD ssl3_undef_enc_method={ 72 ssl_undefined_function, 73 ssl_undefined_function, 74 ssl_undefined_function, 75 ssl_undefined_function, 76 ssl_undefined_function, 77 ssl_undefined_function, 78 }; 79 80 void SSL_clear(s) 81 SSL *s; 82 { 83 int state; 84 85 if (s->method == NULL) return; 86 87 s->error=0; 88 s->hit=0; 89 90 /* This is set if we are doing dynamic renegotiation so keep 91 * the old cipher. It is sort of a SSL_clear_lite :-) */ 92 if (s->new_session) return; 93 94 state=s->state; /* Keep to check if we throw away the session-id */ 95 s->type=0; 96 97 s->version=s->method->version; 98 s->rwstate=SSL_NOTHING; 99 s->state=SSL_ST_BEFORE; 100 s->rstate=SSL_ST_READ_HEADER; 101 s->read_ahead=s->ctx->default_read_ahead; 102 103 /* s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN); */ 104 105 if (s->init_buf != NULL) 106 { 107 BUF_MEM_free(s->init_buf); 108 s->init_buf=NULL; 109 } 110 111 ssl_clear_cipher_ctx(s); 112 113 if (ssl_clear_bad_session(s)) 114 { 115 SSL_SESSION_free(s->session); 116 s->session=NULL; 117 } 118 119 s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN); 120 s->first_packet=0; 121 122 s->method->ssl_clear(s); 123 } 124 125 /* Used to change an SSL_CTXs default SSL method type */ 126 int SSL_CTX_set_ssl_version(ctx,meth) 127 SSL_CTX *ctx; 128 SSL_METHOD *meth; 129 { 130 STACK *sk; 131 132 ctx->method=meth; 133 134 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list), 135 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST); 136 if ((sk == NULL) || (sk_num(sk) <= 0)) 137 { 138 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); 139 return(0); 140 } 141 return(1); 142 } 143 144 SSL *SSL_new(ctx) 145 SSL_CTX *ctx; 146 { 147 SSL *s; 148 149 if (ctx == NULL) 150 { 151 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX); 152 return(NULL); 153 } 154 if (ctx->method == NULL) 155 { 156 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); 157 return(NULL); 158 } 159 160 s=(SSL *)Malloc(sizeof(SSL)); 161 if (s == NULL) goto err; 162 memset(s,0,sizeof(SSL)); 163 164 if (ctx->default_cert != NULL) 165 { 166 CRYPTO_add(&ctx->default_cert->references,1, 167 CRYPTO_LOCK_SSL_CERT); 168 s->cert=ctx->default_cert; 169 } 170 else 171 s->cert=NULL; 172 s->verify_mode=ctx->default_verify_mode; 173 s->verify_callback=ctx->default_verify_callback; 174 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX); 175 s->ctx=ctx; 176 177 s->verify_result=X509_V_OK; 178 179 s->method=ctx->method; 180 181 if (!s->method->ssl_new(s)) 182 { 183 SSL_CTX_free(ctx); 184 Free(s); 185 goto err; 186 } 187 188 s->quiet_shutdown=ctx->quiet_shutdown; 189 s->references=1; 190 s->options=ctx->options; 191 SSL_clear(s); 192 193 CRYPTO_new_ex_data(ssl_meth,(char *)s,&s->ex_data); 194 195 return(s); 196 err: 197 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE); 198 return(NULL); 199 } 200 201 void SSL_free(s) 202 SSL *s; 203 { 204 int i; 205 206 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL); 207 #ifdef REF_PRINT 208 REF_PRINT("SSL",s); 209 #endif 210 if (i > 0) return; 211 #ifdef REF_CHECK 212 if (i < 0) 213 { 214 fprintf(stderr,"SSL_free, bad reference count\n"); 215 abort(); /* ok */ 216 } 217 #endif 218 219 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data); 220 221 if (s->bbio != NULL) 222 { 223 /* If the buffering BIO is in place, pop it off */ 224 if (s->bbio == s->wbio) 225 { 226 s->wbio=BIO_pop(s->wbio); 227 } 228 BIO_free(s->bbio); 229 s->bbio=NULL; 230 } 231 if (s->rbio != NULL) 232 BIO_free_all(s->rbio); 233 if ((s->wbio != NULL) && (s->wbio != s->rbio)) 234 BIO_free_all(s->wbio); 235 236 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf); 237 238 /* add extra stuff */ 239 if (s->cipher_list != NULL) sk_free(s->cipher_list); 240 if (s->cipher_list_by_id != NULL) sk_free(s->cipher_list_by_id); 241 242 /* Make the next call work :-) */ 243 if (s->session != NULL) 244 { 245 ssl_clear_bad_session(s); 246 SSL_SESSION_free(s->session); 247 } 248 249 ssl_clear_cipher_ctx(s); 250 251 if (s->cert != NULL) ssl_cert_free(s->cert); 252 /* Free up if allocated */ 253 254 if (s->ctx) SSL_CTX_free(s->ctx); 255 256 if (s->client_CA != NULL) 257 sk_pop_free(s->client_CA,X509_NAME_free); 258 259 if (s->method != NULL) s->method->ssl_free(s); 260 261 Free((char *)s); 262 } 263 264 void SSL_set_bio(s, rbio,wbio) 265 SSL *s; 266 BIO *rbio; 267 BIO *wbio; 268 { 269 /* If the output buffering BIO is still in place, remove it 270 */ 271 if (s->bbio != NULL) 272 { 273 if (s->wbio == s->bbio) 274 { 275 s->wbio=s->wbio->next_bio; 276 s->bbio->next_bio=NULL; 277 } 278 } 279 if ((s->rbio != NULL) && (s->rbio != rbio)) 280 BIO_free_all(s->rbio); 281 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) 282 BIO_free_all(s->wbio); 283 s->rbio=rbio; 284 s->wbio=wbio; 285 } 286 287 BIO *SSL_get_rbio(s) 288 SSL *s; 289 { return(s->rbio); } 290 291 BIO *SSL_get_wbio(s) 292 SSL *s; 293 { return(s->wbio); } 294 295 int SSL_get_fd(s) 296 SSL *s; 297 { 298 int ret= -1; 299 BIO *b,*r; 300 301 b=SSL_get_rbio(s); 302 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR); 303 if (r != NULL) 304 BIO_get_fd(r,&ret); 305 return(ret); 306 } 307 308 #ifndef NO_SOCK 309 int SSL_set_fd(s, fd) 310 SSL *s; 311 int fd; 312 { 313 int ret=0; 314 BIO *bio=NULL; 315 316 bio=BIO_new(BIO_s_socket()); 317 318 if (bio == NULL) 319 { 320 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB); 321 goto err; 322 } 323 BIO_set_fd(bio,fd,BIO_NOCLOSE); 324 SSL_set_bio(s,bio,bio); 325 ret=1; 326 err: 327 return(ret); 328 } 329 330 int SSL_set_wfd(s, fd) 331 SSL *s; 332 int fd; 333 { 334 int ret=0; 335 BIO *bio=NULL; 336 337 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) 338 || ((int)BIO_get_fd(s->rbio,NULL) != fd)) 339 { 340 bio=BIO_new(BIO_s_socket()); 341 342 if (bio == NULL) 343 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; } 344 BIO_set_fd(bio,fd,BIO_NOCLOSE); 345 SSL_set_bio(s,SSL_get_rbio(s),bio); 346 } 347 else 348 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s)); 349 ret=1; 350 err: 351 return(ret); 352 } 353 354 int SSL_set_rfd(s, fd) 355 SSL *s; 356 int fd; 357 { 358 int ret=0; 359 BIO *bio=NULL; 360 361 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) 362 || ((int)BIO_get_fd(s->wbio,NULL) != fd)) 363 { 364 bio=BIO_new(BIO_s_socket()); 365 366 if (bio == NULL) 367 { 368 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB); 369 goto err; 370 } 371 BIO_set_fd(bio,fd,BIO_NOCLOSE); 372 SSL_set_bio(s,bio,SSL_get_wbio(s)); 373 } 374 else 375 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s)); 376 ret=1; 377 err: 378 return(ret); 379 } 380 #endif 381 382 int SSL_get_verify_mode(s) 383 SSL *s; 384 { 385 return(s->verify_mode); 386 } 387 388 int (*SSL_get_verify_callback(s))() 389 SSL *s; 390 { 391 return(s->verify_callback); 392 } 393 394 int SSL_CTX_get_verify_mode(ctx) 395 SSL_CTX *ctx; 396 { 397 return(ctx->default_verify_mode); 398 } 399 400 int (*SSL_CTX_get_verify_callback(ctx))() 401 SSL_CTX *ctx; 402 { 403 return(ctx->default_verify_callback); 404 } 405 406 void SSL_set_verify(s, mode, callback) 407 SSL *s; 408 int mode; 409 int (*callback)(); 410 { 411 s->verify_mode=mode; 412 if (callback != NULL) 413 s->verify_callback=callback; 414 } 415 416 void SSL_set_read_ahead(s, yes) 417 SSL *s; 418 int yes; 419 { 420 s->read_ahead=yes; 421 } 422 423 int SSL_get_read_ahead(s) 424 SSL *s; 425 { 426 return(s->read_ahead); 427 } 428 429 int SSL_pending(s) 430 SSL *s; 431 { 432 return(s->method->ssl_pending(s)); 433 } 434 435 X509 *SSL_get_peer_certificate(s) 436 SSL *s; 437 { 438 X509 *r; 439 440 if ((s == NULL) || (s->session == NULL)) 441 r=NULL; 442 else 443 r=s->session->peer; 444 445 if (r == NULL) return(r); 446 447 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509); 448 449 return(r); 450 } 451 452 STACK *SSL_get_peer_cert_chain(s) 453 SSL *s; 454 { 455 STACK *r; 456 457 if ((s == NULL) || (s->session == NULL) || (s->session->cert == NULL)) 458 r=NULL; 459 else 460 r=s->session->cert->cert_chain; 461 462 return(r); 463 } 464 465 /* Now in theory, since the calling process own 't' it should be safe to 466 * modify. We need to be able to read f without being hassled */ 467 void SSL_copy_session_id(t,f) 468 SSL *t,*f; 469 { 470 CERT *tmp; 471 472 /* Do we need to to SSL locking? */ 473 SSL_set_session(t,SSL_get_session(f)); 474 475 /* what if we are setup as SSLv2 but want to talk SSLv3 or 476 * vice-versa */ 477 if (t->method != f->method) 478 { 479 t->method->ssl_free(t); /* cleanup current */ 480 t->method=f->method; /* change method */ 481 t->method->ssl_new(t); /* setup new */ 482 } 483 484 tmp=t->cert; 485 if (f->cert != NULL) 486 { 487 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT); 488 t->cert=f->cert; 489 } 490 else 491 t->cert=NULL; 492 if (tmp != NULL) ssl_cert_free(tmp); 493 } 494 495 /* Fix this so it checks all the valid key/cert options */ 496 int SSL_CTX_check_private_key(ctx) 497 SSL_CTX *ctx; 498 { 499 if ( (ctx == NULL) || 500 (ctx->default_cert == NULL) || 501 (ctx->default_cert->key->x509 == NULL)) 502 { 503 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 504 return(0); 505 } 506 if (ctx->default_cert->key->privatekey == NULL) 507 { 508 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 509 return(0); 510 } 511 return(X509_check_private_key(ctx->default_cert->key->x509, ctx->default_cert->key->privatekey)); 512 } 513 514 /* Fix this function so that it takes an optional type parameter */ 515 int SSL_check_private_key(ssl) 516 SSL *ssl; 517 { 518 if (ssl == NULL) 519 { 520 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER); 521 return(0); 522 } 523 if (ssl->cert == NULL) 524 return(SSL_CTX_check_private_key(ssl->ctx)); 525 if (ssl->cert->key->x509 == NULL) 526 { 527 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED); 528 return(0); 529 } 530 if (ssl->cert->key->privatekey == NULL) 531 { 532 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED); 533 return(0); 534 } 535 return(X509_check_private_key(ssl->cert->key->x509, 536 ssl->cert->key->privatekey)); 537 } 538 539 int SSL_accept(s) 540 SSL *s; 541 { 542 return(s->method->ssl_accept(s)); 543 } 544 545 int SSL_connect(s) 546 SSL *s; 547 { 548 return(s->method->ssl_connect(s)); 549 } 550 551 long SSL_get_default_timeout(s) 552 SSL *s; 553 { 554 return(s->method->get_timeout()); 555 } 556 557 int SSL_read(s,buf,num) 558 SSL *s; 559 char *buf; 560 int num; 561 { 562 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 563 { 564 s->rwstate=SSL_NOTHING; 565 return(0); 566 } 567 return(s->method->ssl_read(s,buf,num)); 568 } 569 570 int SSL_peek(s,buf,num) 571 SSL *s; 572 char *buf; 573 int num; 574 { 575 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) 576 { 577 return(0); 578 } 579 return(s->method->ssl_peek(s,buf,num)); 580 } 581 582 int SSL_write(s,buf,num) 583 SSL *s; 584 char *buf; 585 int num; 586 { 587 if (s->shutdown & SSL_SENT_SHUTDOWN) 588 { 589 s->rwstate=SSL_NOTHING; 590 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN); 591 return(-1); 592 } 593 return(s->method->ssl_write(s,buf,num)); 594 } 595 596 int SSL_shutdown(s) 597 SSL *s; 598 { 599 if ((s != NULL) && !SSL_in_init(s)) 600 return(s->method->ssl_shutdown(s)); 601 else 602 return(1); 603 } 604 605 int SSL_renegotiate(s) 606 SSL *s; 607 { 608 s->new_session=1; 609 return(s->method->ssl_renegotiate(s)); 610 } 611 612 long SSL_ctrl(s,cmd,larg,parg) 613 SSL *s; 614 int cmd; 615 long larg; 616 char *parg; 617 { 618 return(s->method->ssl_ctrl(s,cmd,larg,parg)); 619 } 620 621 long SSL_CTX_ctrl(ctx,cmd,larg,parg) 622 SSL_CTX *ctx; 623 int cmd; 624 long larg; 625 char *parg; 626 { 627 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg)); 628 } 629 630 int ssl_cipher_id_cmp(a,b) 631 SSL_CIPHER *a,*b; 632 { 633 long l; 634 635 l=a->id-b->id; 636 if (l == 0L) 637 return(0); 638 else 639 return((l > 0)?1:-1); 640 } 641 642 int ssl_cipher_ptr_id_cmp(ap,bp) 643 SSL_CIPHER **ap,**bp; 644 { 645 long l; 646 647 l=(*ap)->id-(*bp)->id; 648 if (l == 0L) 649 return(0); 650 else 651 return((l > 0)?1:-1); 652 } 653 654 /* return a STACK of the ciphers available for the SSL and in order of 655 * preference */ 656 STACK *SSL_get_ciphers(s) 657 SSL *s; 658 { 659 if ((s != NULL) && (s->cipher_list != NULL)) 660 { 661 return(s->cipher_list); 662 } 663 else if ((s->ctx != NULL) && 664 (s->ctx->cipher_list != NULL)) 665 { 666 return(s->ctx->cipher_list); 667 } 668 return(NULL); 669 } 670 671 /* return a STACK of the ciphers available for the SSL and in order of 672 * algorithm id */ 673 STACK *ssl_get_ciphers_by_id(s) 674 SSL *s; 675 { 676 if ((s != NULL) && (s->cipher_list_by_id != NULL)) 677 { 678 return(s->cipher_list_by_id); 679 } 680 else if ((s != NULL) && (s->ctx != NULL) && 681 (s->ctx->cipher_list_by_id != NULL)) 682 { 683 return(s->ctx->cipher_list_by_id); 684 } 685 return(NULL); 686 } 687 688 /* The old interface to get the same thing as SSL_get_ciphers() */ 689 char *SSL_get_cipher_list(s,n) 690 SSL *s; 691 int n; 692 { 693 SSL_CIPHER *c; 694 STACK *sk; 695 696 if (s == NULL) return(NULL); 697 sk=SSL_get_ciphers(s); 698 if ((sk == NULL) || (sk_num(sk) <= n)) 699 return(NULL); 700 c=(SSL_CIPHER *)sk_value(sk,n); 701 if (c == NULL) return(NULL); 702 return(c->name); 703 } 704 705 /* specify the ciphers to be used by defaut by the SSL_CTX */ 706 int SSL_CTX_set_cipher_list(ctx,str) 707 SSL_CTX *ctx; 708 char *str; 709 { 710 STACK *sk; 711 712 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list, 713 &ctx->cipher_list_by_id,str); 714 /* XXXX */ 715 return((sk == NULL)?0:1); 716 } 717 718 /* specify the ciphers to be used by the SSL */ 719 int SSL_set_cipher_list(s, str) 720 SSL *s; 721 char *str; 722 { 723 STACK *sk; 724 725 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list, 726 &s->cipher_list_by_id,str); 727 /* XXXX */ 728 return((sk == NULL)?0:1); 729 } 730 731 /* works well for SSLv2, not so good for SSLv3 */ 732 char *SSL_get_shared_ciphers(s,buf,len) 733 SSL *s; 734 char *buf; 735 int len; 736 { 737 char *p,*cp; 738 STACK *sk; 739 SSL_CIPHER *c; 740 int i; 741 742 if ((s->session == NULL) || (s->session->ciphers == NULL) || 743 (len < 2)) 744 return(NULL); 745 746 p=buf; 747 sk=s->session->ciphers; 748 for (i=0; i<sk_num(sk); i++) 749 { 750 /* Decrement for either the ':' or a '\0' */ 751 len--; 752 c=(SSL_CIPHER *)sk_value(sk,i); 753 for (cp=c->name; *cp; ) 754 { 755 if (len-- == 0) 756 { 757 *p='\0'; 758 return(buf); 759 } 760 else 761 *(p++)= *(cp++); 762 } 763 *(p++)=':'; 764 } 765 p[-1]='\0'; 766 return(buf); 767 } 768 769 int ssl_cipher_list_to_bytes(s,sk,p) 770 SSL *s; 771 STACK *sk; 772 unsigned char *p; 773 { 774 int i,j=0; 775 SSL_CIPHER *c; 776 unsigned char *q; 777 778 if (sk == NULL) return(0); 779 q=p; 780 781 for (i=0; i<sk_num(sk); i++) 782 { 783 c=(SSL_CIPHER *)sk_value(sk,i); 784 j=ssl_put_cipher_by_char(s,c,p); 785 p+=j; 786 } 787 return(p-q); 788 } 789 790 STACK *ssl_bytes_to_cipher_list(s,p,num,skp) 791 SSL *s; 792 unsigned char *p; 793 int num; 794 STACK **skp; 795 { 796 SSL_CIPHER *c; 797 STACK *sk; 798 int i,n; 799 800 n=ssl_put_cipher_by_char(s,NULL,NULL); 801 if ((num%n) != 0) 802 { 803 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); 804 return(NULL); 805 } 806 if ((skp == NULL) || (*skp == NULL)) 807 sk=sk_new(NULL); /* change perhaps later */ 808 else 809 { 810 sk= *skp; 811 sk_zero(sk); 812 } 813 814 for (i=0; i<num; i+=n) 815 { 816 c=ssl_get_cipher_by_char(s,p); 817 p+=n; 818 if (c != NULL) 819 { 820 if (!sk_push(sk,(char *)c)) 821 { 822 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE); 823 goto err; 824 } 825 } 826 } 827 828 if (skp != NULL) 829 *skp=sk; 830 return(sk); 831 err: 832 if ((skp == NULL) || (*skp == NULL)) 833 sk_free(sk); 834 return(NULL); 835 } 836 837 unsigned long SSL_SESSION_hash(a) 838 SSL_SESSION *a; 839 { 840 unsigned long l; 841 842 l= (a->session_id[0] )|(a->session_id[1]<< 8L)| 843 (a->session_id[2]<<16L)|(a->session_id[3]<<24L); 844 return(l); 845 } 846 847 int SSL_SESSION_cmp(a, b) 848 SSL_SESSION *a; 849 SSL_SESSION *b; 850 { 851 if (a->ssl_version != b->ssl_version) 852 return(1); 853 if (a->session_id_length != b->session_id_length) 854 return(1); 855 return(memcmp(a->session_id,b->session_id,a->session_id_length)); 856 } 857 858 SSL_CTX *SSL_CTX_new(meth) 859 SSL_METHOD *meth; 860 { 861 SSL_CTX *ret; 862 863 if (meth == NULL) 864 { 865 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED); 866 return(NULL); 867 } 868 ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX)); 869 if (ret == NULL) 870 goto err; 871 872 memset(ret,0,sizeof(SSL_CTX)); 873 874 ret->method=meth; 875 876 ret->cert_store=NULL; 877 ret->session_cache_mode=SSL_SESS_CACHE_SERVER; 878 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; 879 ret->session_cache_head=NULL; 880 ret->session_cache_tail=NULL; 881 882 /* We take the system default */ 883 ret->session_timeout=meth->get_timeout(); 884 885 ret->new_session_cb=NULL; 886 ret->remove_session_cb=NULL; 887 ret->get_session_cb=NULL; 888 889 ret->sess_connect=0; 890 ret->sess_connect_good=0; 891 ret->sess_accept=0; 892 ret->sess_accept_renegotiate=0; 893 ret->sess_connect_renegotiate=0; 894 ret->sess_accept_good=0; 895 ret->sess_miss=0; 896 ret->sess_timeout=0; 897 ret->sess_cache_full=0; 898 ret->sess_hit=0; 899 ret->sess_cb_hit=0; 900 901 ret->references=1; 902 ret->quiet_shutdown=0; 903 904 /* ret->cipher=NULL;*/ 905 /* ret->s2->challenge=NULL; 906 ret->master_key=NULL; 907 ret->key_arg=NULL; 908 ret->s2->conn_id=NULL; */ 909 910 ret->info_callback=NULL; 911 912 ret->app_verify_callback=NULL; 913 ret->app_verify_arg=NULL; 914 915 ret->default_read_ahead=0; 916 ret->default_verify_mode=SSL_VERIFY_NONE; 917 ret->default_verify_callback=NULL; 918 if ((ret->default_cert=ssl_cert_new()) == NULL) 919 goto err; 920 921 ret->default_passwd_callback=NULL; 922 ret->client_cert_cb=NULL; 923 924 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp); 925 if (ret->sessions == NULL) goto err; 926 ret->cert_store=X509_STORE_new(); 927 if (ret->cert_store == NULL) goto err; 928 929 ssl_create_cipher_list(ret->method, 930 &ret->cipher_list,&ret->cipher_list_by_id, 931 SSL_DEFAULT_CIPHER_LIST); 932 if ((ret->cipher_list == NULL) || (sk_num(ret->cipher_list) <= 0)) 933 { 934 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS); 935 goto err2; 936 } 937 938 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL) 939 { 940 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); 941 goto err2; 942 } 943 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL) 944 { 945 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); 946 goto err2; 947 } 948 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL) 949 { 950 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); 951 goto err2; 952 } 953 954 if ((ret->client_CA=sk_new_null()) == NULL) 955 goto err; 956 957 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data); 958 959 return(ret); 960 err: 961 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE); 962 err2: 963 if (ret != NULL) SSL_CTX_free(ret); 964 return(NULL); 965 } 966 967 void SSL_CTX_free(a) 968 SSL_CTX *a; 969 { 970 int i; 971 972 if (a == NULL) return; 973 974 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX); 975 #ifdef REF_PRINT 976 REF_PRINT("SSL_CTX",a); 977 #endif 978 if (i > 0) return; 979 #ifdef REF_CHECK 980 if (i < 0) 981 { 982 fprintf(stderr,"SSL_CTX_free, bad reference count\n"); 983 abort(); /* ok */ 984 } 985 #endif 986 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data); 987 988 if (a->sessions != NULL) 989 { 990 SSL_CTX_flush_sessions(a,0); 991 lh_free(a->sessions); 992 } 993 if (a->cert_store != NULL) 994 X509_STORE_free(a->cert_store); 995 if (a->cipher_list != NULL) 996 sk_free(a->cipher_list); 997 if (a->cipher_list_by_id != NULL) 998 sk_free(a->cipher_list_by_id); 999 if (a->default_cert != NULL) 1000 ssl_cert_free(a->default_cert); 1001 if (a->client_CA != NULL) 1002 sk_pop_free(a->client_CA,X509_NAME_free); 1003 Free((char *)a); 1004 } 1005 1006 void SSL_CTX_set_default_passwd_cb(ctx,cb) 1007 SSL_CTX *ctx; 1008 int (*cb)(); 1009 { 1010 ctx->default_passwd_callback=cb; 1011 } 1012 1013 void SSL_CTX_set_cert_verify_cb(ctx,cb,arg) 1014 SSL_CTX *ctx; 1015 int (*cb)(); 1016 char *arg; 1017 { 1018 ctx->app_verify_callback=cb; 1019 ctx->app_verify_arg=arg; 1020 } 1021 1022 void SSL_CTX_set_verify(ctx,mode,cb) 1023 SSL_CTX *ctx; 1024 int mode; 1025 int (*cb)(); 1026 { 1027 ctx->default_verify_mode=mode; 1028 ctx->default_verify_callback=cb; 1029 /* This needs cleaning up EAY EAY EAY */ 1030 X509_STORE_set_verify_cb_func(ctx->cert_store,cb); 1031 } 1032 1033 void ssl_set_cert_masks(c) 1034 CERT *c; 1035 { 1036 CERT_PKEY *cpk; 1037 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign; 1038 int rsa_enc_export,dh_rsa_export,dh_dsa_export; 1039 int rsa_tmp_export,dh_tmp_export; 1040 unsigned long mask,emask; 1041 1042 if ((c == NULL) || (c->valid)) return; 1043 1044 #ifndef NO_RSA 1045 rsa_tmp=((c->rsa_tmp != NULL) || (c->rsa_tmp_cb != NULL))?1:0; 1046 rsa_tmp_export=((c->rsa_tmp_cb != NULL) || 1047 (rsa_tmp && (RSA_size(c->rsa_tmp)*8 <= 512)))?1:0; 1048 #else 1049 rsa_tmp=rsa_tmp_export=0; 1050 #endif 1051 #ifndef NO_DH 1052 dh_tmp=((c->dh_tmp != NULL) || (c->dh_tmp_cb != NULL))?1:0; 1053 dh_tmp_export=((c->dh_tmp_cb != NULL) || 1054 (dh_tmp && (DH_size(c->dh_tmp)*8 <= 512)))?1:0; 1055 #else 1056 dh_tmp=dh_tmp_export=0; 1057 #endif 1058 1059 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]); 1060 rsa_enc= ((cpk->x509 != NULL) && (cpk->privatekey != NULL))?1:0; 1061 rsa_enc_export=(rsa_enc && (EVP_PKEY_size(cpk->privatekey)*8 <= 512))?1:0; 1062 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]); 1063 rsa_sign=((cpk->x509 != NULL) && (cpk->privatekey != NULL))?1:0; 1064 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]); 1065 dsa_sign=((cpk->x509 != NULL) && (cpk->privatekey != NULL))?1:0; 1066 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]); 1067 dh_rsa= ((cpk->x509 != NULL) && (cpk->privatekey != NULL))?1:0; 1068 dh_rsa_export=(dh_rsa && (EVP_PKEY_size(cpk->privatekey)*8 <= 512))?1:0; 1069 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]); 1070 /* FIX THIS EAY EAY EAY */ 1071 dh_dsa= ((cpk->x509 != NULL) && (cpk->privatekey != NULL))?1:0; 1072 dh_dsa_export=(dh_dsa && (EVP_PKEY_size(cpk->privatekey)*8 <= 512))?1:0; 1073 1074 mask=0; 1075 emask=0; 1076 1077 #ifdef CIPHER_DEBUG 1078 printf("rt=%d dht=%d re=%d rs=%d ds=%d dhr=%d dhd=%d\n", 1079 rsa_tmp,dh_tmp, 1080 rsa_enc,rsa_sign,dsa_sign,dh_rsa,dh_dsa); 1081 #endif 1082 1083 if (rsa_enc || (rsa_tmp && rsa_sign)) 1084 mask|=SSL_kRSA; 1085 if (rsa_enc_export || (rsa_tmp_export && rsa_sign)) 1086 emask|=SSL_kRSA; 1087 1088 #if 0 1089 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ 1090 if ( (dh_tmp || dh_rsa || dh_dsa) && 1091 (rsa_enc || rsa_sign || dsa_sign)) 1092 mask|=SSL_kEDH; 1093 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && 1094 (rsa_enc || rsa_sign || dsa_sign)) 1095 emask|=SSL_kEDH; 1096 #endif 1097 1098 if (dh_tmp_export) 1099 emask|=SSL_kEDH; 1100 1101 if (dh_tmp) 1102 mask|=SSL_kEDH; 1103 1104 if (dh_rsa) mask|=SSL_kDHr; 1105 if (dh_rsa_export) emask|=SSL_kDHr; 1106 1107 if (dh_dsa) mask|=SSL_kDHd; 1108 if (dh_dsa_export) emask|=SSL_kDHd; 1109 1110 if (rsa_enc || rsa_sign) 1111 { 1112 mask|=SSL_aRSA; 1113 emask|=SSL_aRSA; 1114 } 1115 1116 if (dsa_sign) 1117 { 1118 mask|=SSL_aDSS; 1119 emask|=SSL_aDSS; 1120 } 1121 1122 #ifdef SSL_ALLOW_ADH 1123 mask|=SSL_aNULL; 1124 emask|=SSL_aNULL; 1125 #endif 1126 1127 c->mask=mask; 1128 c->export_mask=emask; 1129 c->valid=1; 1130 } 1131 1132 /* THIS NEEDS CLEANING UP */ 1133 X509 *ssl_get_server_send_cert(s) 1134 SSL *s; 1135 { 1136 unsigned long alg,mask,kalg; 1137 CERT *c; 1138 int i,export; 1139 1140 c=s->cert; 1141 ssl_set_cert_masks(c); 1142 alg=s->s3->tmp.new_cipher->algorithms; 1143 export=(alg & SSL_EXPORT)?1:0; 1144 mask=(export)?c->export_mask:c->mask; 1145 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK); 1146 1147 if (kalg & SSL_kDHr) 1148 i=SSL_PKEY_DH_RSA; 1149 else if (kalg & SSL_kDHd) 1150 i=SSL_PKEY_DH_DSA; 1151 else if (kalg & SSL_aDSS) 1152 i=SSL_PKEY_DSA_SIGN; 1153 else if (kalg & SSL_aRSA) 1154 { 1155 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL) 1156 i=SSL_PKEY_RSA_SIGN; 1157 else 1158 i=SSL_PKEY_RSA_ENC; 1159 } 1160 else /* if (kalg & SSL_aNULL) */ 1161 { 1162 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR); 1163 return(NULL); 1164 } 1165 if (c->pkeys[i].x509 == NULL) return(NULL); 1166 return(c->pkeys[i].x509); 1167 } 1168 1169 EVP_PKEY *ssl_get_sign_pkey(s,cipher) 1170 SSL *s; 1171 SSL_CIPHER *cipher; 1172 { 1173 unsigned long alg; 1174 CERT *c; 1175 1176 alg=cipher->algorithms; 1177 c=s->cert; 1178 1179 if ((alg & SSL_aDSS) && 1180 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) 1181 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey); 1182 else if (alg & SSL_aRSA) 1183 { 1184 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) 1185 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey); 1186 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) 1187 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey); 1188 else 1189 return(NULL); 1190 } 1191 else /* if (alg & SSL_aNULL) */ 1192 { 1193 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR); 1194 return(NULL); 1195 } 1196 } 1197 1198 void ssl_update_cache(s,mode) 1199 SSL *s; 1200 int mode; 1201 { 1202 int i; 1203 1204 /* If the session_id_length is 0, we are not supposed to cache it, 1205 * and it would be rather hard to do anyway :-) */ 1206 if (s->session->session_id_length == 0) return; 1207 1208 if ((s->ctx->session_cache_mode & mode) 1209 && (!s->hit) 1210 && SSL_CTX_add_session(s->ctx,s->session) 1211 && (s->ctx->new_session_cb != NULL)) 1212 { 1213 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION); 1214 if (!s->ctx->new_session_cb(s,s->session)) 1215 SSL_SESSION_free(s->session); 1216 } 1217 1218 /* auto flush every 255 connections */ 1219 i=s->ctx->session_cache_mode; 1220 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && 1221 ((i & mode) == mode)) 1222 { 1223 if ( (((mode & SSL_SESS_CACHE_CLIENT) 1224 ?s->ctx->sess_connect_good 1225 :s->ctx->sess_accept_good) & 0xff) == 0xff) 1226 { 1227 SSL_CTX_flush_sessions(s->ctx,time(NULL)); 1228 } 1229 } 1230 } 1231 1232 SSL_METHOD *SSL_get_ssl_method(s) 1233 SSL *s; 1234 { 1235 return(s->method); 1236 } 1237 1238 int SSL_set_ssl_method(s,meth) 1239 SSL *s; 1240 SSL_METHOD *meth; 1241 { 1242 int conn= -1; 1243 int ret=1; 1244 1245 if (s->method != meth) 1246 { 1247 if (s->handshake_func != NULL) 1248 conn=(s->handshake_func == s->method->ssl_connect); 1249 1250 if (s->method->version == meth->version) 1251 s->method=meth; 1252 else 1253 { 1254 s->method->ssl_free(s); 1255 s->method=meth; 1256 ret=s->method->ssl_new(s); 1257 } 1258 1259 if (conn == 1) 1260 s->handshake_func=meth->ssl_connect; 1261 else if (conn == 0) 1262 s->handshake_func=meth->ssl_accept; 1263 } 1264 return(ret); 1265 } 1266 1267 int SSL_get_error(s,i) 1268 SSL *s; 1269 int i; 1270 { 1271 int reason; 1272 BIO *bio; 1273 1274 if (i > 0) return(SSL_ERROR_NONE); 1275 1276 if (ERR_peek_error() != 0) 1277 return(SSL_ERROR_SSL); 1278 1279 if ((i < 0) && SSL_want_read(s)) 1280 { 1281 bio=SSL_get_rbio(s); 1282 if (BIO_should_read(bio)) 1283 return(SSL_ERROR_WANT_READ); 1284 else if (BIO_should_write(bio)) 1285 return(SSL_ERROR_WANT_WRITE); 1286 else if (BIO_should_io_special(bio)) 1287 { 1288 reason=BIO_get_retry_reason(bio); 1289 if (reason == BIO_RR_CONNECT) 1290 return(SSL_ERROR_WANT_CONNECT); 1291 else 1292 return(SSL_ERROR_SYSCALL); /* unknown */ 1293 } 1294 } 1295 1296 if ((i < 0) && SSL_want_write(s)) 1297 { 1298 bio=SSL_get_wbio(s); 1299 if (BIO_should_write(bio)) 1300 return(SSL_ERROR_WANT_WRITE); 1301 else if (BIO_should_read(bio)) 1302 return(SSL_ERROR_WANT_READ); 1303 else if (BIO_should_io_special(bio)) 1304 { 1305 reason=BIO_get_retry_reason(bio); 1306 if (reason == BIO_RR_CONNECT) 1307 return(SSL_ERROR_WANT_CONNECT); 1308 else 1309 return(SSL_ERROR_SYSCALL); 1310 } 1311 } 1312 if ((i < 0) && SSL_want_x509_lookup(s)) 1313 { 1314 return(SSL_ERROR_WANT_X509_LOOKUP); 1315 } 1316 1317 if (i == 0) 1318 { 1319 if (s->version == SSL2_VERSION) 1320 { 1321 /* assume it is the socket being closed */ 1322 return(SSL_ERROR_ZERO_RETURN); 1323 } 1324 else 1325 { 1326 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && 1327 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) 1328 return(SSL_ERROR_ZERO_RETURN); 1329 } 1330 } 1331 return(SSL_ERROR_SYSCALL); 1332 } 1333 1334 int SSL_do_handshake(s) 1335 SSL *s; 1336 { 1337 int ret=1; 1338 1339 if (s->handshake_func == NULL) 1340 { 1341 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET); 1342 return(-1); 1343 } 1344 if (s->s3->renegotiate) ssl3_renegotiate_check(s); 1345 if (SSL_in_init(s) || SSL_in_before(s)) 1346 { 1347 ret=s->handshake_func(s); 1348 } 1349 return(ret); 1350 } 1351 1352 /* For the next 2 functions, SSL_clear() sets shutdown and so 1353 * one of these calls will reset it */ 1354 void SSL_set_accept_state(s) 1355 SSL *s; 1356 { 1357 s->shutdown=0; 1358 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE; 1359 s->handshake_func=s->method->ssl_accept; 1360 /* clear the current cipher */ 1361 ssl_clear_cipher_ctx(s); 1362 } 1363 1364 void SSL_set_connect_state(s) 1365 SSL *s; 1366 { 1367 s->shutdown=0; 1368 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE; 1369 s->handshake_func=s->method->ssl_connect; 1370 /* clear the current cipher */ 1371 ssl_clear_cipher_ctx(s); 1372 } 1373 1374 int ssl_undefined_function(s) 1375 SSL *s; 1376 { 1377 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1378 return(0); 1379 } 1380 1381 SSL_METHOD *ssl_bad_method(ver) 1382 int ver; 1383 { 1384 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); 1385 return(NULL); 1386 } 1387 1388 char *SSL_get_version(s) 1389 SSL *s; 1390 { 1391 if (s->version == TLS1_VERSION) 1392 return("TLSv1"); 1393 else if (s->version == SSL3_VERSION) 1394 return("SSLv3"); 1395 else if (s->version == SSL2_VERSION) 1396 return("SSLv2"); 1397 else 1398 return("unknown"); 1399 } 1400 1401 SSL *SSL_dup(s) 1402 SSL *s; 1403 { 1404 STACK *sk; 1405 X509_NAME *xn; 1406 SSL *ret; 1407 int i; 1408 1409 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) return(NULL); 1410 1411 /* This copies version, session-id, SSL_METHOD and 'cert' */ 1412 SSL_copy_session_id(ret,s); 1413 1414 SSL_set_read_ahead(ret,SSL_get_read_ahead(s)); 1415 SSL_set_verify(ret,SSL_get_verify_mode(s), 1416 SSL_get_verify_callback(s)); 1417 1418 SSL_set_info_callback(ret,SSL_get_info_callback(s)); 1419 1420 ret->debug=s->debug; 1421 ret->options=s->options; 1422 1423 /* copy app data, a little dangerous perhaps */ 1424 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data)) 1425 goto err; 1426 1427 /* setup rbio, and wbio */ 1428 if (s->rbio != NULL) 1429 { 1430 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio)) 1431 goto err; 1432 } 1433 if (s->wbio != NULL) 1434 { 1435 if (s->wbio != s->rbio) 1436 { 1437 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio)) 1438 goto err; 1439 } 1440 else 1441 ret->wbio=ret->rbio; 1442 } 1443 1444 /* dup the cipher_list and cipher_list_by_id stacks */ 1445 if (s->cipher_list != NULL) 1446 { 1447 if ((ret->cipher_list=sk_dup(s->cipher_list)) == NULL) 1448 goto err; 1449 } 1450 if (s->cipher_list_by_id != NULL) 1451 if ((ret->cipher_list_by_id=sk_dup(s->cipher_list_by_id)) 1452 == NULL) 1453 goto err; 1454 1455 /* Dup the client_CA list */ 1456 if (s->client_CA != NULL) 1457 { 1458 if ((sk=sk_dup(s->client_CA)) == NULL) goto err; 1459 ret->client_CA=sk; 1460 for (i=0; i<sk_num(sk); i++) 1461 { 1462 xn=(X509_NAME *)sk_value(sk,i); 1463 if ((sk_value(sk,i)=(char *)X509_NAME_dup(xn)) == NULL) 1464 { 1465 X509_NAME_free(xn); 1466 goto err; 1467 } 1468 } 1469 } 1470 1471 ret->shutdown=s->shutdown; 1472 ret->state=s->state; 1473 ret->handshake_func=s->handshake_func; 1474 1475 if (0) 1476 { 1477 err: 1478 if (ret != NULL) SSL_free(ret); 1479 ret=NULL; 1480 } 1481 return(ret); 1482 } 1483 1484 void ssl_clear_cipher_ctx(s) 1485 SSL *s; 1486 { 1487 if (s->enc_read_ctx != NULL) 1488 { 1489 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); 1490 Free(s->enc_read_ctx); 1491 s->enc_read_ctx=NULL; 1492 } 1493 if (s->enc_write_ctx != NULL) 1494 { 1495 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); 1496 Free(s->enc_write_ctx); 1497 s->enc_write_ctx=NULL; 1498 } 1499 } 1500 1501 /* Fix this function so that it takes an optional type parameter */ 1502 X509 *SSL_get_certificate(s) 1503 SSL *s; 1504 { 1505 if (s->cert != NULL) 1506 return(s->cert->key->x509); 1507 else 1508 return(NULL); 1509 } 1510 1511 /* Fix this function so that it takes an optional type parameter */ 1512 EVP_PKEY *SSL_get_privatekey(s) 1513 SSL *s; 1514 { 1515 if (s->cert != NULL) 1516 return(s->cert->key->privatekey); 1517 else 1518 return(NULL); 1519 } 1520 1521 SSL_CIPHER *SSL_get_current_cipher(s) 1522 SSL *s; 1523 { 1524 if ((s->session != NULL) && (s->session->cipher != NULL)) 1525 return(s->session->cipher); 1526 return(NULL); 1527 } 1528 1529 int ssl_init_wbio_buffer(s,push) 1530 SSL *s; 1531 int push; 1532 { 1533 BIO *bbio; 1534 1535 if (s->bbio == NULL) 1536 { 1537 bbio=BIO_new(BIO_f_buffer()); 1538 if (bbio == NULL) return(0); 1539 s->bbio=bbio; 1540 } 1541 else 1542 { 1543 bbio=s->bbio; 1544 if (s->bbio == s->wbio) 1545 s->wbio=BIO_pop(s->wbio); 1546 } 1547 BIO_reset(bbio); 1548 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ 1549 if (!BIO_set_read_buffer_size(bbio,1)) 1550 { 1551 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB); 1552 return(0); 1553 } 1554 if (push) 1555 { 1556 if (s->wbio != bbio) 1557 s->wbio=BIO_push(bbio,s->wbio); 1558 } 1559 else 1560 { 1561 if (s->wbio == bbio) 1562 s->wbio=BIO_pop(bbio); 1563 } 1564 return(1); 1565 } 1566 1567 void SSL_CTX_set_quiet_shutdown(ctx,mode) 1568 SSL_CTX *ctx; 1569 int mode; 1570 { 1571 ctx->quiet_shutdown=mode; 1572 } 1573 1574 int SSL_CTX_get_quiet_shutdown(ctx) 1575 SSL_CTX *ctx; 1576 { 1577 return(ctx->quiet_shutdown); 1578 } 1579 1580 void SSL_set_quiet_shutdown(s,mode) 1581 SSL *s; 1582 int mode; 1583 { 1584 s->quiet_shutdown=mode; 1585 } 1586 1587 int SSL_get_quiet_shutdown(s) 1588 SSL *s; 1589 { 1590 return(s->quiet_shutdown); 1591 } 1592 1593 void SSL_set_shutdown(s,mode) 1594 SSL *s; 1595 int mode; 1596 { 1597 s->shutdown=mode; 1598 } 1599 1600 int SSL_get_shutdown(s) 1601 SSL *s; 1602 { 1603 return(s->shutdown); 1604 } 1605 1606 int SSL_version(s) 1607 SSL *s; 1608 { 1609 return(s->version); 1610 } 1611 1612 SSL_CTX *SSL_get_SSL_CTX(ssl) 1613 SSL *ssl; 1614 { 1615 return(ssl->ctx); 1616 } 1617 1618 int SSL_CTX_set_default_verify_paths(ctx) 1619 SSL_CTX *ctx; 1620 { 1621 return(X509_STORE_set_default_paths(ctx->cert_store)); 1622 } 1623 1624 int SSL_CTX_load_verify_locations(ctx,CAfile,CApath) 1625 SSL_CTX *ctx; 1626 char *CAfile; 1627 char *CApath; 1628 { 1629 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath)); 1630 } 1631 1632 void SSL_set_info_callback(ssl,cb) 1633 SSL *ssl; 1634 void (*cb)(); 1635 { 1636 ssl->info_callback=cb; 1637 } 1638 1639 void (*SSL_get_info_callback(ssl))() 1640 SSL *ssl; 1641 { 1642 return(ssl->info_callback); 1643 } 1644 1645 int SSL_state(ssl) 1646 SSL *ssl; 1647 { 1648 return(ssl->state); 1649 } 1650 1651 void SSL_set_verify_result(ssl,arg) 1652 SSL *ssl; 1653 long arg; 1654 { 1655 ssl->verify_result=arg; 1656 } 1657 1658 long SSL_get_verify_result(ssl) 1659 SSL *ssl; 1660 { 1661 return(ssl->verify_result); 1662 } 1663 1664 int SSL_get_ex_new_index(argl,argp,new_func,dup_func,free_func) 1665 long argl; 1666 char *argp; 1667 int (*new_func)(); 1668 int (*dup_func)(); 1669 void (*free_func)(); 1670 { 1671 ssl_meth_num++; 1672 return(CRYPTO_get_ex_new_index(ssl_meth_num-1, 1673 &ssl_meth,argl,argp,new_func,dup_func,free_func)); 1674 } 1675 1676 int SSL_set_ex_data(s,idx,arg) 1677 SSL *s; 1678 int idx; 1679 char *arg; 1680 { 1681 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1682 } 1683 1684 char *SSL_get_ex_data(s,idx) 1685 SSL *s; 1686 int idx; 1687 { 1688 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1689 } 1690 1691 int SSL_CTX_get_ex_new_index(argl,argp,new_func,dup_func,free_func) 1692 long argl; 1693 char *argp; 1694 int (*new_func)(); 1695 int (*dup_func)(); 1696 void (*free_func)(); 1697 { 1698 ssl_ctx_meth_num++; 1699 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1, 1700 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func)); 1701 } 1702 1703 int SSL_CTX_set_ex_data(s,idx,arg) 1704 SSL_CTX *s; 1705 int idx; 1706 char *arg; 1707 { 1708 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg)); 1709 } 1710 1711 char *SSL_CTX_get_ex_data(s,idx) 1712 SSL_CTX *s; 1713 int idx; 1714 { 1715 return(CRYPTO_get_ex_data(&s->ex_data,idx)); 1716 } 1717 1718 #if defined(_WINDLL) && defined(WIN16) 1719 #include "../crypto/bio/bss_file.c" 1720 #endif 1721 1722