ssl/ssl_lib.c

   1 /*! \file ssl/ssl_lib.c
   2  *  \brief Version independent SSL functions.
   3  */
   4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   5  * All rights reserved.
   6  *
   7  * This package is an SSL implementation written
   8  * by Eric Young (eay@cryptsoft.com).
   9  * The implementation was written so as to conform with Netscapes SSL.
  10  *
  11  * This library is free for commercial and non-commercial use as long as
  12  * the following conditions are aheared to.  The following conditions
  13  * apply to all code found in this distribution, be it the RC4, RSA,
  14  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  15  * included with this distribution is covered by the same copyright terms
  16  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  17  *
  18  * Copyright remains Eric Young's, and as such any Copyright notices in
  19  * the code are not to be removed.
  20  * If this package is used in a product, Eric Young should be given attribution
  21  * as the author of the parts of the library used.
  22  * This can be in the form of a textual message at program startup or
  23  * in documentation (online or textual) provided with the package.
  24  *
  25  * Redistribution and use in source and binary forms, with or without
  26  * modification, are permitted provided that the following conditions
  27  * are met:
  28  * 1. Redistributions of source code must retain the copyright
  29  *    notice, this list of conditions and the following disclaimer.
  30  * 2. Redistributions in binary form must reproduce the above copyright
  31  *    notice, this list of conditions and the following disclaimer in the
  32  *    documentation and/or other materials provided with the distribution.
  33  * 3. All advertising materials mentioning features or use of this software
  34  *    must display the following acknowledgement:
  35  *    "This product includes cryptographic software written by
  36  *     Eric Young (eay@cryptsoft.com)"
  37  *    The word 'cryptographic' can be left out if the rouines from the library
  38  *    being used are not cryptographic related :-).
  39  * 4. If you include any Windows specific code (or a derivative thereof) from
  40  *    the apps directory (application code) you must include an acknowledgement:
  41  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  * The licence and distribution terms for any publically available version or
  56  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  57  * copied and put under another distribution licence
  58  * [including the GNU Public Licence.]
  59  */
  60
  61 #include <stdio.h>
  62 #include <openssl/objects.h>
  63 #include <openssl/lhash.h>
  64 #include <openssl/x509v3.h>
  65 #include "ssl_locl.h"
  66
  67 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
  68
  69 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_meth=NULL;
  70 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_ctx_meth=NULL;
  71 static int ssl_meth_num=0;
  72 static int ssl_ctx_meth_num=0;
  73
  74 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
  75         /* evil casts, but these functions are only called if there's a library bug */
  76         (int (*)(SSL *,int))ssl_undefined_function,
  77         (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
  78         ssl_undefined_function,
  79         (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
  80         (int (*)(SSL*, int))ssl_undefined_function,
  81         (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
  82         };
  83
  84 int SSL_clear(SSL *s)
  85         {
  86         int state;
  87
  88         if (s->method == NULL)
  89                 {
  90                 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
  91                 return(0);
  92                 }
  93
  94         s->error=0;
  95         s->hit=0;
  96         s->shutdown=0;
  97
  98 #if 0 /* Disabled since version 1.10 of this file (early return not
  99        * needed because SSL_clear is not called when doing renegotiation) */
 100         /* This is set if we are doing dynamic renegotiation so keep
 101          * the old cipher.  It is sort of a SSL_clear_lite :-) */
 102         if (s->new_session) return(1);
 103 #else
 104         if (s->new_session)
 105                 {
 106                 SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR);
 107                 return 0;
 108                 }
 109 #endif
 110
 111         state=s->state; /* Keep to check if we throw away the session-id */
 112         s->type=0;
 113
 114         s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
 115
 116         s->version=s->method->version;
 117         s->client_version=s->version;
 118         s->rwstate=SSL_NOTHING;
 119         s->rstate=SSL_ST_READ_HEADER;
 120         s->read_ahead=s->ctx->read_ahead;
 121
 122         if (s->init_buf != NULL)
 123                 {
 124                 BUF_MEM_free(s->init_buf);
 125                 s->init_buf=NULL;
 126                 }
 127
 128         ssl_clear_cipher_ctx(s);
 129
 130         if (ssl_clear_bad_session(s))
 131                 {
 132                 SSL_SESSION_free(s->session);
 133                 s->session=NULL;
 134                 }
 135
 136         s->first_packet=0;
 137
 138 #if 1
 139         /* Check to see if we were changed into a different method, if
 140          * so, revert back if we are not doing session-id reuse. */
 141         if ((s->session == NULL) && (s->method != s->ctx->method))
 142                 {
 143                 s->method->ssl_free(s);
 144                 s->method=s->ctx->method;
 145                 if (!s->method->ssl_new(s))
 146                         return(0);
 147                 }
 148         else
 149 #endif
 150                 s->method->ssl_clear(s);
 151         return(1);
 152         }
 153
 154 /** Used to change an SSL_CTXs default SSL method type */
 155 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
 156         {
 157         STACK_OF(SSL_CIPHER) *sk;
 158
 159         ctx->method=meth;
 160
 161         sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
 162                 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
 163         if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
 164                 {
 165                 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
 166                 return(0);
 167                 }
 168         return(1);
 169         }
 170
 171 SSL *SSL_new(SSL_CTX *ctx)
 172         {
 173         SSL *s;
 174
 175         if (ctx == NULL)
 176                 {
 177                 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
 178                 return(NULL);
 179                 }
 180         if (ctx->method == NULL)
 181                 {
 182                 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
 183                 return(NULL);
 184                 }
 185
 186         s=(SSL *)Malloc(sizeof(SSL));
 187         if (s == NULL) goto err;
 188         memset(s,0,sizeof(SSL));
 189
 190         if (ctx->cert != NULL)
 191                 {
 192                 /* Earlier library versions used to copy the pointer to
 193                  * the CERT, not its contents; only when setting new
 194                  * parameters for the per-SSL copy, ssl_cert_new would be
 195                  * called (and the direct reference to the per-SSL_CTX
 196                  * settings would be lost, but those still were indirectly
 197                  * accessed for various purposes, and for that reason they
 198                  * used to be known as s->ctx->default_cert).
 199                  * Now we don't look at the SSL_CTX's CERT after having
 200                  * duplicated it once. */
 201
 202                 s->cert = ssl_cert_dup(ctx->cert);
 203                 if (s->cert == NULL)
 204                         goto err;
 205                 }
 206         else
 207                 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
 208         s->sid_ctx_length=ctx->sid_ctx_length;
 209         memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
 210         s->verify_mode=ctx->verify_mode;
 211         s->verify_depth=ctx->verify_depth;
 212         s->verify_callback=ctx->default_verify_callback;
 213         s->purpose = ctx->purpose;
 214         s->trust = ctx->trust;
 215         CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
 216         s->ctx=ctx;
 217
 218         s->verify_result=X509_V_OK;
 219
 220         s->method=ctx->method;
 221
 222         if (!s->method->ssl_new(s))
 223                 goto err;
 224
 225         s->quiet_shutdown=ctx->quiet_shutdown;
 226         s->references=1;
 227         s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
 228         s->options=ctx->options;
 229         s->mode=ctx->mode;
 230         SSL_clear(s);
 231
 232         CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
 233
 234         return(s);
 235 err:
 236         if (s != NULL)
 237                 {
 238                 if (s->cert != NULL)
 239                         ssl_cert_free(s->cert);
 240                 if (s->ctx != NULL)
 241                         SSL_CTX_free(s->ctx); /* decrement reference count */
 242                 Free(s);
 243                 }
 244         SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
 245         return(NULL);
 246         }
 247
 248 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
 249                                    unsigned int sid_ctx_len)
 250     {
 251     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
 252         {
 253         SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
 254         return 0;
 255         }
 256     ctx->sid_ctx_length=sid_ctx_len;
 257     memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
 258
 259     return 1;
 260     }
 261
 262 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
 263                                unsigned int sid_ctx_len)
 264     {
 265     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
 266         {
 267         SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
 268         return 0;
 269         }
 270     ssl->sid_ctx_length=sid_ctx_len;
 271     memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
 272
 273     return 1;
 274     }
 275
 276 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
 277 {
 278         if(X509_PURPOSE_get_by_id(purpose) == -1) {
 279                 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
 280                 return 0;
 281         }
 282         s->purpose = purpose;
 283         return 1;
 284 }
 285
 286 int SSL_set_purpose(SSL *s, int purpose)
 287 {
 288         if(X509_PURPOSE_get_by_id(purpose) == -1) {
 289                 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
 290                 return 0;
 291         }
 292         s->purpose = purpose;
 293         return 1;
 294 }
 295
 296 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
 297 {
 298         if(X509_TRUST_get_by_id(trust) == -1) {
 299                 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
 300                 return 0;
 301         }
 302         s->trust = trust;
 303         return 1;
 304 }
 305
 306 int SSL_set_trust(SSL *s, int trust)
 307 {
 308         if(X509_TRUST_get_by_id(trust) == -1) {
 309                 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
 310                 return 0;
 311         }
 312         s->trust = trust;
 313         return 1;
 314 }
 315
 316 void SSL_free(SSL *s)
 317         {
 318         int i;
 319
 320         if(s == NULL)
 321             return;
 322
 323         i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
 324 #ifdef REF_PRINT
 325         REF_PRINT("SSL",s);
 326 #endif
 327         if (i > 0) return;
 328 #ifdef REF_CHECK
 329         if (i < 0)
 330                 {
 331                 fprintf(stderr,"SSL_free, bad reference count\n");
 332                 abort(); /* ok */
 333                 }
 334 #endif
 335
 336         CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
 337
 338         if (s->bbio != NULL)
 339                 {
 340                 /* If the buffering BIO is in place, pop it off */
 341                 if (s->bbio == s->wbio)
 342                         {
 343                         s->wbio=BIO_pop(s->wbio);
 344                         }
 345                 BIO_free(s->bbio);
 346                 s->bbio=NULL;
 347                 }
 348         if (s->rbio != NULL)
 349                 BIO_free_all(s->rbio);
 350         if ((s->wbio != NULL) && (s->wbio != s->rbio))
 351                 BIO_free_all(s->wbio);
 352
 353         if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
 354
 355         /* add extra stuff */
 356         if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
 357         if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
 358
 359         /* Make the next call work :-) */
 360         if (s->session != NULL)
 361                 {
 362                 ssl_clear_bad_session(s);
 363                 SSL_SESSION_free(s->session);
 364                 }
 365
 366         ssl_clear_cipher_ctx(s);
 367
 368         if (s->cert != NULL) ssl_cert_free(s->cert);
 369         /* Free up if allocated */
 370
 371         if (s->ctx) SSL_CTX_free(s->ctx);
 372
 373         if (s->client_CA != NULL)
 374                 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
 375
 376         if (s->method != NULL) s->method->ssl_free(s);
 377
 378         Free(s);
 379         }
 380
 381 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
 382         {
 383         /* If the output buffering BIO is still in place, remove it
 384          */
 385         if (s->bbio != NULL)
 386                 {
 387                 if (s->wbio == s->bbio)
 388                         {
 389                         s->wbio=s->wbio->next_bio;
 390                         s->bbio->next_bio=NULL;
 391                         }
 392                 }
 393         if ((s->rbio != NULL) && (s->rbio != rbio))
 394                 BIO_free_all(s->rbio);
 395         if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
 396                 BIO_free_all(s->wbio);
 397         s->rbio=rbio;
 398         s->wbio=wbio;
 399         }
 400
 401 BIO *SSL_get_rbio(SSL *s)
 402         { return(s->rbio); }
 403
 404 BIO *SSL_get_wbio(SSL *s)
 405         { return(s->wbio); }
 406
 407 int SSL_get_fd(SSL *s)
 408         {
 409         int ret= -1;
 410         BIO *b,*r;
 411
 412         b=SSL_get_rbio(s);
 413         r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
 414         if (r != NULL)
 415                 BIO_get_fd(r,&ret);
 416         return(ret);
 417         }
 418
 419 #ifndef NO_SOCK
 420 int SSL_set_fd(SSL *s,int fd)
 421         {
 422         int ret=0;
 423         BIO *bio=NULL;
 424
 425         bio=BIO_new(BIO_s_socket());
 426
 427         if (bio == NULL)
 428                 {
 429                 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
 430                 goto err;
 431                 }
 432         BIO_set_fd(bio,fd,BIO_NOCLOSE);
 433         SSL_set_bio(s,bio,bio);
 434         ret=1;
 435 err:
 436         return(ret);
 437         }
 438
 439 int SSL_set_wfd(SSL *s,int fd)
 440         {
 441         int ret=0;
 442         BIO *bio=NULL;
 443
 444         if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
 445                 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
 446                 {
 447                 bio=BIO_new(BIO_s_socket());
 448
 449                 if (bio == NULL)
 450                         { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
 451                 BIO_set_fd(bio,fd,BIO_NOCLOSE);
 452                 SSL_set_bio(s,SSL_get_rbio(s),bio);
 453                 }
 454         else
 455                 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
 456         ret=1;
 457 err:
 458         return(ret);
 459         }
 460
 461 int SSL_set_rfd(SSL *s,int fd)
 462         {
 463         int ret=0;
 464         BIO *bio=NULL;
 465
 466         if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
 467                 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
 468                 {
 469                 bio=BIO_new(BIO_s_socket());
 470
 471                 if (bio == NULL)
 472                         {
 473                         SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
 474                         goto err;
 475                         }
 476                 BIO_set_fd(bio,fd,BIO_NOCLOSE);
 477                 SSL_set_bio(s,bio,SSL_get_wbio(s));
 478                 }
 479         else
 480                 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
 481         ret=1;
 482 err:
 483         return(ret);
 484         }
 485 #endif
 486
 487
 488 /* return length of latest Finished message we sent, copy to 'buf' */
 489 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
 490         {
 491         size_t ret = 0;
 492
 493         if (s->s3 != NULL)
 494                 {
 495                 ret = s->s3->tmp.finish_md_len;
 496                 if (count > ret)
 497                         count = ret;
 498                 memcpy(buf, s->s3->tmp.finish_md, count);
 499                 }
 500         return ret;
 501         }
 502
 503 /* return length of latest Finished message we expected, copy to 'buf' */
 504 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
 505         {
 506         size_t ret = 0;
 507
 508         if (s->s3 != NULL)
 509                 {
 510                 ret = s->s3->tmp.peer_finish_md_len;
 511                 if (count > ret)
 512                         count = ret;
 513                 memcpy(buf, s->s3->tmp.peer_finish_md, count);
 514                 }
 515         return ret;
 516         }
 517
 518
 519 int SSL_get_verify_mode(SSL *s)
 520         {
 521         return(s->verify_mode);
 522         }
 523
 524 int SSL_get_verify_depth(SSL *s)
 525         {
 526         return(s->verify_depth);
 527         }
 528
 529 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
 530         {
 531         return(s->verify_callback);
 532         }
 533
 534 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
 535         {
 536         return(ctx->verify_mode);
 537         }
 538
 539 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
 540         {
 541         return(ctx->verify_depth);
 542         }
 543
 544 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
 545         {
 546         return(ctx->default_verify_callback);
 547         }
 548
 549 void SSL_set_verify(SSL *s,int mode,
 550                     int (*callback)(int ok,X509_STORE_CTX *ctx))
 551         {
 552         s->verify_mode=mode;
 553         if (callback != NULL)
 554                 s->verify_callback=callback;
 555         }
 556
 557 void SSL_set_verify_depth(SSL *s,int depth)
 558         {
 559         s->verify_depth=depth;
 560         }
 561
 562 void SSL_set_read_ahead(SSL *s,int yes)
 563         {
 564         s->read_ahead=yes;
 565         }
 566
 567 int SSL_get_read_ahead(SSL *s)
 568         {
 569         return(s->read_ahead);
 570         }
 571
 572 int SSL_pending(SSL *s)
 573         {
 574         return(s->method->ssl_pending(s));
 575         }
 576
 577 X509 *SSL_get_peer_certificate(SSL *s)
 578         {
 579         X509 *r;
 580
 581         if ((s == NULL) || (s->session == NULL))
 582                 r=NULL;
 583         else
 584                 r=s->session->peer;
 585
 586         if (r == NULL) return(r);
 587
 588         CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
 589
 590         return(r);
 591         }
 592
 593 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
 594         {
 595         STACK_OF(X509) *r;
 596
 597         if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
 598                 r=NULL;
 599         else
 600                 r=s->session->sess_cert->cert_chain;
 601
 602         return(r);
 603         }
 604
 605 /* Now in theory, since the calling process own 't' it should be safe to
 606  * modify.  We need to be able to read f without being hassled */
 607 void SSL_copy_session_id(SSL *t,SSL *f)
 608         {
 609         CERT *tmp;
 610
 611         /* Do we need to to SSL locking? */
 612         SSL_set_session(t,SSL_get_session(f));
 613
 614         /* what if we are setup as SSLv2 but want to talk SSLv3 or
 615          * vice-versa */
 616         if (t->method != f->method)
 617                 {
 618                 t->method->ssl_free(t); /* cleanup current */
 619                 t->method=f->method;    /* change method */
 620                 t->method->ssl_new(t);  /* setup new */
 621                 }
 622
 623         tmp=t->cert;
 624         if (f->cert != NULL)
 625                 {
 626                 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
 627                 t->cert=f->cert;
 628                 }
 629         else
 630                 t->cert=NULL;
 631         if (tmp != NULL) ssl_cert_free(tmp);
 632         SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
 633         }
 634
 635 /* Fix this so it checks all the valid key/cert options */
 636 int SSL_CTX_check_private_key(SSL_CTX *ctx)
 637         {
 638         if (    (ctx == NULL) ||
 639                 (ctx->cert == NULL) ||
 640                 (ctx->cert->key->x509 == NULL))
 641                 {
 642                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 643                 return(0);
 644                 }
 645         if      (ctx->cert->key->privatekey == NULL)
 646                 {
 647                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
 648                 return(0);
 649                 }
 650         return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
 651         }
 652
 653 /* Fix this function so that it takes an optional type parameter */
 654 int SSL_check_private_key(SSL *ssl)
 655         {
 656         if (ssl == NULL)
 657                 {
 658                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
 659                 return(0);
 660                 }
 661         if (ssl->cert == NULL)
 662                 {
 663                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 664                 return 0;
 665                 }
 666         if (ssl->cert->key->x509 == NULL)
 667                 {
 668                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 669                 return(0);
 670                 }
 671         if (ssl->cert->key->privatekey == NULL)
 672                 {
 673                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
 674                 return(0);
 675                 }
 676         return(X509_check_private_key(ssl->cert->key->x509,
 677                 ssl->cert->key->privatekey));
 678         }
 679
 680 int SSL_accept(SSL *s)
 681         {
 682         if (s->handshake_func == 0)
 683                 /* Not properly initialized yet */
 684                 SSL_set_accept_state(s);
 685
 686         return(s->method->ssl_accept(s));
 687         }
 688
 689 int SSL_connect(SSL *s)
 690         {
 691         if (s->handshake_func == 0)
 692                 /* Not properly initialized yet */
 693                 SSL_set_connect_state(s);
 694
 695         return(s->method->ssl_connect(s));
 696         }
 697
 698 long SSL_get_default_timeout(SSL *s)
 699         {
 700         return(s->method->get_timeout());
 701         }
 702
 703 int SSL_read(SSL *s,char *buf,int num)
 704         {
 705         if (s->handshake_func == 0)
 706                 {
 707                 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
 708                 return -1;
 709                 }
 710
 711         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
 712                 {
 713                 s->rwstate=SSL_NOTHING;
 714                 return(0);
 715                 }
 716         return(s->method->ssl_read(s,buf,num));
 717         }
 718
 719 int SSL_peek(SSL *s,char *buf,int num)
 720         {
 721         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
 722                 {
 723                 return(0);
 724                 }
 725         return(s->method->ssl_peek(s,buf,num));
 726         }
 727
 728 int SSL_write(SSL *s,const char *buf,int num)
 729         {
 730         if (s->handshake_func == 0)
 731                 {
 732                 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
 733                 return -1;
 734                 }
 735
 736         if (s->shutdown & SSL_SENT_SHUTDOWN)
 737                 {
 738                 s->rwstate=SSL_NOTHING;
 739                 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
 740                 return(-1);
 741                 }
 742         return(s->method->ssl_write(s,buf,num));
 743         }
 744
 745 int SSL_shutdown(SSL *s)
 746         {
 747         /* Note that this function behaves differently from what one might
 748          * expect.  Return values are 0 for no success (yet),
 749          * 1 for success; but calling it once is usually not enough,
 750          * even if blocking I/O is used (see ssl3_shutdown).
 751          */
 752
 753         if (s->handshake_func == 0)
 754                 {
 755                 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
 756                 return -1;
 757                 }
 758
 759         if ((s != NULL) && !SSL_in_init(s))
 760                 return(s->method->ssl_shutdown(s));
 761         else
 762                 return(1);
 763         }
 764
 765 int SSL_renegotiate(SSL *s)
 766         {
 767         s->new_session=1;
 768         return(s->method->ssl_renegotiate(s));
 769         }
 770
 771 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
 772         {
 773         long l;
 774
 775         switch (cmd)
 776                 {
 777         case SSL_CTRL_GET_READ_AHEAD:
 778                 return(s->read_ahead);
 779         case SSL_CTRL_SET_READ_AHEAD:
 780                 l=s->read_ahead;
 781                 s->read_ahead=larg;
 782                 return(l);
 783         case SSL_CTRL_OPTIONS:
 784                 return(s->options|=larg);
 785         case SSL_CTRL_MODE:
 786                 return(s->mode|=larg);
 787         default:
 788                 return(s->method->ssl_ctrl(s,cmd,larg,parg));
 789                 }
 790         }
 791
 792 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
 793         {
 794         switch(cmd)
 795                 {
 796         default:
 797                 return(s->method->ssl_callback_ctrl(s,cmd,fp));
 798                 }
 799         }
 800
 801 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
 802         {
 803         return ctx->sessions;
 804         }
 805
 806 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
 807         {
 808         long l;
 809
 810         switch (cmd)
 811                 {
 812         case SSL_CTRL_GET_READ_AHEAD:
 813                 return(ctx->read_ahead);
 814         case SSL_CTRL_SET_READ_AHEAD:
 815                 l=ctx->read_ahead;
 816                 ctx->read_ahead=larg;
 817                 return(l);
 818
 819         case SSL_CTRL_SET_SESS_CACHE_SIZE:
 820                 l=ctx->session_cache_size;
 821                 ctx->session_cache_size=larg;
 822                 return(l);
 823         case SSL_CTRL_GET_SESS_CACHE_SIZE:
 824                 return(ctx->session_cache_size);
 825         case SSL_CTRL_SET_SESS_CACHE_MODE:
 826                 l=ctx->session_cache_mode;
 827                 ctx->session_cache_mode=larg;
 828                 return(l);
 829         case SSL_CTRL_GET_SESS_CACHE_MODE:
 830                 return(ctx->session_cache_mode);
 831
 832         case SSL_CTRL_SESS_NUMBER:
 833                 return(ctx->sessions->num_items);
 834         case SSL_CTRL_SESS_CONNECT:
 835                 return(ctx->stats.sess_connect);
 836         case SSL_CTRL_SESS_CONNECT_GOOD:
 837                 return(ctx->stats.sess_connect_good);
 838         case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
 839                 return(ctx->stats.sess_connect_renegotiate);
 840         case SSL_CTRL_SESS_ACCEPT:
 841                 return(ctx->stats.sess_accept);
 842         case SSL_CTRL_SESS_ACCEPT_GOOD:
 843                 return(ctx->stats.sess_accept_good);
 844         case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
 845                 return(ctx->stats.sess_accept_renegotiate);
 846         case SSL_CTRL_SESS_HIT:
 847                 return(ctx->stats.sess_hit);
 848         case SSL_CTRL_SESS_CB_HIT:
 849                 return(ctx->stats.sess_cb_hit);
 850         case SSL_CTRL_SESS_MISSES:
 851                 return(ctx->stats.sess_miss);
 852         case SSL_CTRL_SESS_TIMEOUTS:
 853                 return(ctx->stats.sess_timeout);
 854         case SSL_CTRL_SESS_CACHE_FULL:
 855                 return(ctx->stats.sess_cache_full);
 856         case SSL_CTRL_OPTIONS:
 857                 return(ctx->options|=larg);
 858         case SSL_CTRL_MODE:
 859                 return(ctx->mode|=larg);
 860         default:
 861                 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
 862                 }
 863         }
 864
 865 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
 866         {
 867         switch(cmd)
 868                 {
 869         default:
 870                 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
 871                 }
 872         }
 873
 874 int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b)
 875         {
 876         long l;
 877
 878         l=a->id-b->id;
 879         if (l == 0L)
 880                 return(0);
 881         else
 882                 return((l > 0)?1:-1);
 883         }
 884
 885 int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp)
 886         {
 887         long l;
 888
 889         l=(*ap)->id-(*bp)->id;
 890         if (l == 0L)
 891                 return(0);
 892         else
 893                 return((l > 0)?1:-1);
 894         }
 895
 896 /** return a STACK of the ciphers available for the SSL and in order of
 897  * preference */
 898 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
 899         {
 900         if ((s != NULL) && (s->cipher_list != NULL))
 901                 {
 902                 return(s->cipher_list);
 903                 }
 904         else if ((s->ctx != NULL) &&
 905                 (s->ctx->cipher_list != NULL))
 906                 {
 907                 return(s->ctx->cipher_list);
 908                 }
 909         return(NULL);
 910         }
 911
 912 /** return a STACK of the ciphers available for the SSL and in order of
 913  * algorithm id */
 914 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
 915         {
 916         if ((s != NULL) && (s->cipher_list_by_id != NULL))
 917                 {
 918                 return(s->cipher_list_by_id);
 919                 }
 920         else if ((s != NULL) && (s->ctx != NULL) &&
 921                 (s->ctx->cipher_list_by_id != NULL))
 922                 {
 923                 return(s->ctx->cipher_list_by_id);
 924                 }
 925         return(NULL);
 926         }
 927
 928 /** The old interface to get the same thing as SSL_get_ciphers() */
 929 const char *SSL_get_cipher_list(SSL *s,int n)
 930         {
 931         SSL_CIPHER *c;
 932         STACK_OF(SSL_CIPHER) *sk;
 933
 934         if (s == NULL) return(NULL);
 935         sk=SSL_get_ciphers(s);
 936         if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
 937                 return(NULL);
 938         c=sk_SSL_CIPHER_value(sk,n);
 939         if (c == NULL) return(NULL);
 940         return(c->name);
 941         }
 942
 943 /** specify the ciphers to be used by default by the SSL_CTX */
 944 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
 945         {
 946         STACK_OF(SSL_CIPHER) *sk;
 947
 948         sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
 949                 &ctx->cipher_list_by_id,str);
 950 /* XXXX */
 951         return((sk == NULL)?0:1);
 952         }
 953
 954 /** specify the ciphers to be used by the SSL */
 955 int SSL_set_cipher_list(SSL *s,const char *str)
 956         {
 957         STACK_OF(SSL_CIPHER) *sk;
 958
 959         sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
 960                 &s->cipher_list_by_id,str);
 961 /* XXXX */
 962         return((sk == NULL)?0:1);
 963         }
 964
 965 /* works well for SSLv2, not so good for SSLv3 */
 966 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
 967         {
 968         char *p;
 969         const char *cp;
 970         STACK_OF(SSL_CIPHER) *sk;
 971         SSL_CIPHER *c;
 972         int i;
 973
 974         if ((s->session == NULL) || (s->session->ciphers == NULL) ||
 975                 (len < 2))
 976                 return(NULL);
 977
 978         p=buf;
 979         sk=s->session->ciphers;
 980         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
 981                 {
 982                 /* Decrement for either the ':' or a '\0' */
 983                 len--;
 984                 c=sk_SSL_CIPHER_value(sk,i);
 985                 for (cp=c->name; *cp; )
 986                         {
 987                         if (len-- == 0)
 988                                 {
 989                                 *p='\0';
 990                                 return(buf);
 991                                 }
 992                         else
 993                                 *(p++)= *(cp++);
 994                         }
 995                 *(p++)=':';
 996                 }
 997         p[-1]='\0';
 998         return(buf);
 999         }
1000
1001 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1002         {
1003         int i,j=0;
1004         SSL_CIPHER *c;
1005         unsigned char *q;
1006
1007         if (sk == NULL) return(0);
1008         q=p;
1009
1010         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1011                 {
1012                 c=sk_SSL_CIPHER_value(sk,i);
1013                 j=ssl_put_cipher_by_char(s,c,p);
1014                 p+=j;
1015                 }
1016         return(p-q);
1017         }
1018
1019 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1020                                                STACK_OF(SSL_CIPHER) **skp)
1021         {
1022         SSL_CIPHER *c;
1023         STACK_OF(SSL_CIPHER) *sk;
1024         int i,n;
1025
1026         n=ssl_put_cipher_by_char(s,NULL,NULL);
1027         if ((num%n) != 0)
1028                 {
1029                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1030                 return(NULL);
1031                 }
1032         if ((skp == NULL) || (*skp == NULL))
1033                 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
1034         else
1035                 {
1036                 sk= *skp;
1037                 sk_SSL_CIPHER_zero(sk);
1038                 }
1039
1040         for (i=0; i<num; i+=n)
1041                 {
1042                 c=ssl_get_cipher_by_char(s,p);
1043                 p+=n;
1044                 if (c != NULL)
1045                         {
1046                         if (!sk_SSL_CIPHER_push(sk,c))
1047                                 {
1048                                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1049                                 goto err;
1050                                 }
1051                         }
1052                 }
1053
1054         if (skp != NULL)
1055                 *skp=sk;
1056         return(sk);
1057 err:
1058         if ((skp == NULL) || (*skp == NULL))
1059                 sk_SSL_CIPHER_free(sk);
1060         return(NULL);
1061         }
1062
1063 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1064         {
1065         unsigned long l;
1066
1067         l=(unsigned long)
1068                 ((unsigned int) a->session_id[0]     )|
1069                 ((unsigned int) a->session_id[1]<< 8L)|
1070                 ((unsigned long)a->session_id[2]<<16L)|
1071                 ((unsigned long)a->session_id[3]<<24L);
1072         return(l);
1073         }
1074
1075 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1076         {
1077         if (a->ssl_version != b->ssl_version)
1078                 return(1);
1079         if (a->session_id_length != b->session_id_length)
1080                 return(1);
1081         return(memcmp(a->session_id,b->session_id,a->session_id_length));
1082         }
1083
1084 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1085         {
1086         SSL_CTX *ret=NULL;
1087
1088         if (meth == NULL)
1089                 {
1090                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1091                 return(NULL);
1092                 }
1093
1094         if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1095                 {
1096                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1097                 goto err;
1098                 }
1099         ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX));
1100         if (ret == NULL)
1101                 goto err;
1102
1103         memset(ret,0,sizeof(SSL_CTX));
1104
1105         ret->method=meth;
1106
1107         ret->cert_store=NULL;
1108         ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1109         ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1110         ret->session_cache_head=NULL;
1111         ret->session_cache_tail=NULL;
1112
1113         /* We take the system default */
1114         ret->session_timeout=meth->get_timeout();
1115
1116         ret->new_session_cb=NULL;
1117         ret->remove_session_cb=NULL;
1118         ret->get_session_cb=NULL;
1119
1120         memset((char *)&ret->stats,0,sizeof(ret->stats));
1121
1122         ret->references=1;
1123         ret->quiet_shutdown=0;
1124
1125 /*      ret->cipher=NULL;*/
1126 /*      ret->s2->challenge=NULL;
1127         ret->master_key=NULL;
1128         ret->key_arg=NULL;
1129         ret->s2->conn_id=NULL; */
1130
1131         ret->info_callback=NULL;
1132
1133         ret->app_verify_callback=NULL;
1134         ret->app_verify_arg=NULL;
1135
1136         ret->read_ahead=0;
1137         ret->verify_mode=SSL_VERIFY_NONE;
1138         ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1139         ret->default_verify_callback=NULL;
1140         if ((ret->cert=ssl_cert_new()) == NULL)
1141                 goto err;
1142
1143         ret->default_passwd_callback=NULL;
1144         ret->default_passwd_callback_userdata=NULL;
1145         ret->client_cert_cb=NULL;
1146
1147         ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1148         if (ret->sessions == NULL) goto err;
1149         ret->cert_store=X509_STORE_new();
1150         if (ret->cert_store == NULL) goto err;
1151
1152         ssl_create_cipher_list(ret->method,
1153                 &ret->cipher_list,&ret->cipher_list_by_id,
1154                 SSL_DEFAULT_CIPHER_LIST);
1155         if (ret->cipher_list == NULL
1156             || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1157                 {
1158                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1159                 goto err2;
1160                 }
1161
1162         if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1163                 {
1164                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1165                 goto err2;
1166                 }
1167         if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1168                 {
1169                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1170                 goto err2;
1171                 }
1172         if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1173                 {
1174                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1175                 goto err2;
1176                 }
1177
1178         if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1179                 goto err;
1180
1181         CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1182
1183         ret->extra_certs=NULL;
1184         ret->comp_methods=SSL_COMP_get_compression_methods();
1185
1186         return(ret);
1187 err:
1188         SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1189 err2:
1190         if (ret != NULL) SSL_CTX_free(ret);
1191         return(NULL);
1192         }
1193
1194 static void SSL_COMP_free(SSL_COMP *comp)
1195     { Free(comp); }
1196
1197 void SSL_CTX_free(SSL_CTX *a)
1198         {
1199         int i;
1200
1201         if (a == NULL) return;
1202
1203         i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1204 #ifdef REF_PRINT
1205         REF_PRINT("SSL_CTX",a);
1206 #endif
1207         if (i > 0) return;
1208 #ifdef REF_CHECK
1209         if (i < 0)
1210                 {
1211                 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1212                 abort(); /* ok */
1213                 }
1214 #endif
1215         CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1216
1217         if (a->sessions != NULL)
1218                 {
1219                 SSL_CTX_flush_sessions(a,0);
1220                 lh_free(a->sessions);
1221                 }
1222         if (a->cert_store != NULL)
1223                 X509_STORE_free(a->cert_store);
1224         if (a->cipher_list != NULL)
1225                 sk_SSL_CIPHER_free(a->cipher_list);
1226         if (a->cipher_list_by_id != NULL)
1227                 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1228         if (a->cert != NULL)
1229                 ssl_cert_free(a->cert);
1230         if (a->client_CA != NULL)
1231                 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1232         if (a->extra_certs != NULL)
1233                 sk_X509_pop_free(a->extra_certs,X509_free);
1234         if (a->comp_methods != NULL)
1235                 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1236         Free(a);
1237         }
1238
1239 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1240         {
1241         ctx->default_passwd_callback=cb;
1242         }
1243
1244 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1245         {
1246         ctx->default_passwd_callback_userdata=u;
1247         }
1248
1249 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1250         {
1251         /* now
1252          *     int (*cb)(X509_STORE_CTX *),
1253          * but should be
1254          *     int (*cb)(X509_STORE_CTX *, void *arg)
1255          */
1256         ctx->app_verify_callback=cb;
1257         ctx->app_verify_arg=arg; /* never used */
1258         }
1259
1260 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1261         {
1262         ctx->verify_mode=mode;
1263         ctx->default_verify_callback=cb;
1264         /* This needs cleaning up EAY EAY EAY */
1265         X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1266         }
1267
1268 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1269         {
1270         ctx->verify_depth=depth;
1271         }
1272
1273 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1274         {
1275         CERT_PKEY *cpk;
1276         int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1277         int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1278         int rsa_tmp_export,dh_tmp_export,kl;
1279         unsigned long mask,emask;
1280
1281         if (c == NULL) return;
1282
1283         kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1284
1285 #ifndef NO_RSA
1286         rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1287         rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1288                 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1289 #else
1290         rsa_tmp=rsa_tmp_export=0;
1291 #endif
1292 #ifndef NO_DH
1293         dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1294         dh_tmp_export=(c->dh_tmp_cb != NULL ||
1295                 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1296 #else
1297         dh_tmp=dh_tmp_export=0;
1298 #endif
1299
1300         cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1301         rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1302         rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1303         cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1304         rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1305         cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1306         dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1307         cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1308         dh_rsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1309         dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1310         cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1311 /* FIX THIS EAY EAY EAY */
1312         dh_dsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1313         dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1314
1315         mask=0;
1316         emask=0;
1317
1318 #ifdef CIPHER_DEBUG
1319         printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1320                 rsa_tmp,rsa_tmp_export,dh_tmp,
1321                 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1322 #endif
1323
1324         if (rsa_enc || (rsa_tmp && rsa_sign))
1325                 mask|=SSL_kRSA;
1326         if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1327                 emask|=SSL_kRSA;
1328
1329 #if 0
1330         /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1331         if (    (dh_tmp || dh_rsa || dh_dsa) &&
1332                 (rsa_enc || rsa_sign || dsa_sign))
1333                 mask|=SSL_kEDH;
1334         if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1335                 (rsa_enc || rsa_sign || dsa_sign))
1336                 emask|=SSL_kEDH;
1337 #endif
1338
1339         if (dh_tmp_export)
1340                 emask|=SSL_kEDH;
1341
1342         if (dh_tmp)
1343                 mask|=SSL_kEDH;
1344
1345         if (dh_rsa) mask|=SSL_kDHr;
1346         if (dh_rsa_export) emask|=SSL_kDHr;
1347
1348         if (dh_dsa) mask|=SSL_kDHd;
1349         if (dh_dsa_export) emask|=SSL_kDHd;
1350
1351         if (rsa_enc || rsa_sign)
1352                 {
1353                 mask|=SSL_aRSA;
1354                 emask|=SSL_aRSA;
1355                 }
1356
1357         if (dsa_sign)
1358                 {
1359                 mask|=SSL_aDSS;
1360                 emask|=SSL_aDSS;
1361                 }
1362
1363         mask|=SSL_aNULL;
1364         emask|=SSL_aNULL;
1365
1366         c->mask=mask;
1367         c->export_mask=emask;
1368         c->valid=1;
1369         }
1370
1371 /* THIS NEEDS CLEANING UP */
1372 X509 *ssl_get_server_send_cert(SSL *s)
1373         {
1374         unsigned long alg,mask,kalg;
1375         CERT *c;
1376         int i,is_export;
1377
1378         c=s->cert;
1379         ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1380         alg=s->s3->tmp.new_cipher->algorithms;
1381         is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1382         mask=is_export?c->export_mask:c->mask;
1383         kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1384
1385         if      (kalg & SSL_kDHr)
1386                 i=SSL_PKEY_DH_RSA;
1387         else if (kalg & SSL_kDHd)
1388                 i=SSL_PKEY_DH_DSA;
1389         else if (kalg & SSL_aDSS)
1390                 i=SSL_PKEY_DSA_SIGN;
1391         else if (kalg & SSL_aRSA)
1392                 {
1393                 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1394                         i=SSL_PKEY_RSA_SIGN;
1395                 else
1396                         i=SSL_PKEY_RSA_ENC;
1397                 }
1398         else /* if (kalg & SSL_aNULL) */
1399                 {
1400                 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1401                 return(NULL);
1402                 }
1403         if (c->pkeys[i].x509 == NULL) return(NULL);
1404         return(c->pkeys[i].x509);
1405         }
1406
1407 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1408         {
1409         unsigned long alg;
1410         CERT *c;
1411
1412         alg=cipher->algorithms;
1413         c=s->cert;
1414
1415         if ((alg & SSL_aDSS) &&
1416                 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1417                 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1418         else if (alg & SSL_aRSA)
1419                 {
1420                 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1421                         return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1422                 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1423                         return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1424                 else
1425                         return(NULL);
1426                 }
1427         else /* if (alg & SSL_aNULL) */
1428                 {
1429                 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1430                 return(NULL);
1431                 }
1432         }
1433
1434 void ssl_update_cache(SSL *s,int mode)
1435         {
1436         int i;
1437
1438         /* If the session_id_length is 0, we are not supposed to cache it,
1439          * and it would be rather hard to do anyway :-) */
1440         if (s->session->session_id_length == 0) return;
1441
1442         if ((s->ctx->session_cache_mode & mode)
1443                 && (!s->hit)
1444                 && SSL_CTX_add_session(s->ctx,s->session)
1445                 && (s->ctx->new_session_cb != NULL))
1446                 {
1447                 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1448                 if (!s->ctx->new_session_cb(s,s->session))
1449                         SSL_SESSION_free(s->session);
1450                 }
1451
1452         /* auto flush every 255 connections */
1453         i=s->ctx->session_cache_mode;
1454         if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1455                 ((i & mode) == mode))
1456                 {
1457                 if (  (((mode & SSL_SESS_CACHE_CLIENT)
1458                         ?s->ctx->stats.sess_connect_good
1459                         :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1460                         {
1461                         SSL_CTX_flush_sessions(s->ctx,time(NULL));
1462                         }
1463                 }
1464         }
1465
1466 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1467         {
1468         return(s->method);
1469         }
1470
1471 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1472         {
1473         int conn= -1;
1474         int ret=1;
1475
1476         if (s->method != meth)
1477                 {
1478                 if (s->handshake_func != NULL)
1479                         conn=(s->handshake_func == s->method->ssl_connect);
1480
1481                 if (s->method->version == meth->version)
1482                         s->method=meth;
1483                 else
1484                         {
1485                         s->method->ssl_free(s);
1486                         s->method=meth;
1487                         ret=s->method->ssl_new(s);
1488                         }
1489
1490                 if (conn == 1)
1491                         s->handshake_func=meth->ssl_connect;
1492                 else if (conn == 0)
1493                         s->handshake_func=meth->ssl_accept;
1494                 }
1495         return(ret);
1496         }
1497
1498 int SSL_get_error(SSL *s,int i)
1499         {
1500         int reason;
1501         unsigned long l;
1502         BIO *bio;
1503
1504         if (i > 0) return(SSL_ERROR_NONE);
1505
1506         /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1507          * etc, where we do encode the error */
1508         if ((l=ERR_peek_error()) != 0)
1509                 {
1510                 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1511                         return(SSL_ERROR_SYSCALL);
1512                 else
1513                         return(SSL_ERROR_SSL);
1514                 }
1515
1516         if ((i < 0) && SSL_want_read(s))
1517                 {
1518                 bio=SSL_get_rbio(s);
1519                 if (BIO_should_read(bio))
1520                         return(SSL_ERROR_WANT_READ);
1521                 else if (BIO_should_write(bio))
1522                         /* This one doesn't make too much sense ... We never try
1523                          * to write to the rbio, and an application program where
1524                          * rbio and wbio are separate couldn't even know what it
1525                          * should wait for.
1526                          * However if we ever set s->rwstate incorrectly
1527                          * (so that we have SSL_want_read(s) instead of
1528                          * SSL_want_write(s)) and rbio and wbio *are* the same,
1529                          * this test works around that bug; so it might be safer
1530                          * to keep it. */
1531                         return(SSL_ERROR_WANT_WRITE);
1532                 else if (BIO_should_io_special(bio))
1533                         {
1534                         reason=BIO_get_retry_reason(bio);
1535                         if (reason == BIO_RR_CONNECT)
1536                                 return(SSL_ERROR_WANT_CONNECT);
1537                         else
1538                                 return(SSL_ERROR_SYSCALL); /* unknown */
1539                         }
1540                 }
1541
1542         if ((i < 0) && SSL_want_write(s))
1543                 {
1544                 bio=SSL_get_wbio(s);
1545                 if (BIO_should_write(bio))
1546                         return(SSL_ERROR_WANT_WRITE);
1547                 else if (BIO_should_read(bio))
1548                         /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1549                         return(SSL_ERROR_WANT_READ);
1550                 else if (BIO_should_io_special(bio))
1551                         {
1552                         reason=BIO_get_retry_reason(bio);
1553                         if (reason == BIO_RR_CONNECT)
1554                                 return(SSL_ERROR_WANT_CONNECT);
1555                         else
1556                                 return(SSL_ERROR_SYSCALL);
1557                         }
1558                 }
1559         if ((i < 0) && SSL_want_x509_lookup(s))
1560                 {
1561                 return(SSL_ERROR_WANT_X509_LOOKUP);
1562                 }
1563
1564         if (i == 0)
1565                 {
1566                 if (s->version == SSL2_VERSION)
1567                         {
1568                         /* assume it is the socket being closed */
1569                         return(SSL_ERROR_ZERO_RETURN);
1570                         }
1571                 else
1572                         {
1573                         if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1574                                 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1575                                 return(SSL_ERROR_ZERO_RETURN);
1576                         }
1577                 }
1578         return(SSL_ERROR_SYSCALL);
1579         }
1580
1581 int SSL_do_handshake(SSL *s)
1582         {
1583         int ret=1;
1584
1585         if (s->handshake_func == NULL)
1586                 {
1587                 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1588                 return(-1);
1589                 }
1590
1591         s->method->ssl_renegotiate_check(s);
1592
1593         if (SSL_in_init(s) || SSL_in_before(s))
1594                 {
1595                 ret=s->handshake_func(s);
1596                 }
1597         return(ret);
1598         }
1599
1600 /* For the next 2 functions, SSL_clear() sets shutdown and so
1601  * one of these calls will reset it */
1602 void SSL_set_accept_state(SSL *s)
1603         {
1604         s->server=1;
1605         s->shutdown=0;
1606         s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1607         s->handshake_func=s->method->ssl_accept;
1608         /* clear the current cipher */
1609         ssl_clear_cipher_ctx(s);
1610         }
1611
1612 void SSL_set_connect_state(SSL *s)
1613         {
1614         s->server=0;
1615         s->shutdown=0;
1616         s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1617         s->handshake_func=s->method->ssl_connect;
1618         /* clear the current cipher */
1619         ssl_clear_cipher_ctx(s);
1620         }
1621
1622 int ssl_undefined_function(SSL *s)
1623         {
1624         SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1625         return(0);
1626         }
1627
1628 SSL_METHOD *ssl_bad_method(int ver)
1629         {
1630         SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1631         return(NULL);
1632         }
1633
1634 const char *SSL_get_version(SSL *s)
1635         {
1636         if (s->version == TLS1_VERSION)
1637                 return("TLSv1");
1638         else if (s->version == SSL3_VERSION)
1639                 return("SSLv3");
1640         else if (s->version == SSL2_VERSION)
1641                 return("SSLv2");
1642         else
1643                 return("unknown");
1644         }
1645
1646 SSL *SSL_dup(SSL *s)
1647         {
1648         STACK_OF(X509_NAME) *sk;
1649         X509_NAME *xn;
1650         SSL *ret;
1651         int i;
1652
1653         if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1654             return(NULL);
1655
1656         if (s->session != NULL)
1657                 {
1658                 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1659                 SSL_copy_session_id(ret,s);
1660                 }
1661         else
1662                 {
1663                 /* No session has been established yet, so we have to expect
1664                  * that s->cert or ret->cert will be changed later --
1665                  * they should not both point to the same object,
1666                  * and thus we can't use SSL_copy_session_id. */
1667
1668                 ret->method = s->method;
1669                 ret->method->ssl_new(ret);
1670
1671                 if (s->cert != NULL)
1672                         {
1673                         ret->cert = ssl_cert_dup(s->cert);
1674                         if (ret->cert == NULL)
1675                                 goto err;
1676                         }
1677
1678                 SSL_set_session_id_context(ret,
1679                         s->sid_ctx, s->sid_ctx_length);
1680                 }
1681
1682         SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1683         SSL_set_verify(ret,SSL_get_verify_mode(s),
1684                 SSL_get_verify_callback(s));
1685         SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1686
1687         SSL_set_info_callback(ret,SSL_get_info_callback(s));
1688
1689         ret->debug=s->debug;
1690         ret->options=s->options;
1691
1692         /* copy app data, a little dangerous perhaps */
1693         if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1694                 goto err;
1695
1696         /* setup rbio, and wbio */
1697         if (s->rbio != NULL)
1698                 {
1699                 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1700                         goto err;
1701                 }
1702         if (s->wbio != NULL)
1703                 {
1704                 if (s->wbio != s->rbio)
1705                         {
1706                         if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1707                                 goto err;
1708                         }
1709                 else
1710                         ret->wbio=ret->rbio;
1711                 }
1712
1713         /* dup the cipher_list and cipher_list_by_id stacks */
1714         if (s->cipher_list != NULL)
1715                 {
1716                 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1717                         goto err;
1718                 }
1719         if (s->cipher_list_by_id != NULL)
1720                 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1721                         == NULL)
1722                         goto err;
1723
1724         /* Dup the client_CA list */
1725         if (s->client_CA != NULL)
1726                 {
1727                 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1728                 ret->client_CA=sk;
1729                 for (i=0; i<sk_X509_NAME_num(sk); i++)
1730                         {
1731                         xn=sk_X509_NAME_value(sk,i);
1732                         if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1733                                 {
1734                                 X509_NAME_free(xn);
1735                                 goto err;
1736                                 }
1737                         }
1738                 }
1739
1740         ret->shutdown=s->shutdown;
1741         ret->state=s->state;
1742         ret->handshake_func=s->handshake_func;
1743         ret->server=s->server;
1744
1745         if (0)
1746                 {
1747 err:
1748                 if (ret != NULL) SSL_free(ret);
1749                 ret=NULL;
1750                 }
1751         return(ret);
1752         }
1753
1754 void ssl_clear_cipher_ctx(SSL *s)
1755         {
1756         if (s->enc_read_ctx != NULL)
1757                 {
1758                 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1759                 Free(s->enc_read_ctx);
1760                 s->enc_read_ctx=NULL;
1761                 }
1762         if (s->enc_write_ctx != NULL)
1763                 {
1764                 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1765                 Free(s->enc_write_ctx);
1766                 s->enc_write_ctx=NULL;
1767                 }
1768         if (s->expand != NULL)
1769                 {
1770                 COMP_CTX_free(s->expand);
1771                 s->expand=NULL;
1772                 }
1773         if (s->compress != NULL)
1774                 {
1775                 COMP_CTX_free(s->compress);
1776                 s->compress=NULL;
1777                 }
1778         }
1779
1780 /* Fix this function so that it takes an optional type parameter */
1781 X509 *SSL_get_certificate(SSL *s)
1782         {
1783         if (s->cert != NULL)
1784                 return(s->cert->key->x509);
1785         else
1786                 return(NULL);
1787         }
1788
1789 /* Fix this function so that it takes an optional type parameter */
1790 EVP_PKEY *SSL_get_privatekey(SSL *s)
1791         {
1792         if (s->cert != NULL)
1793                 return(s->cert->key->privatekey);
1794         else
1795                 return(NULL);
1796         }
1797
1798 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1799         {
1800         if ((s->session != NULL) && (s->session->cipher != NULL))
1801                 return(s->session->cipher);
1802         return(NULL);
1803         }
1804
1805 int ssl_init_wbio_buffer(SSL *s,int push)
1806         {
1807         BIO *bbio;
1808
1809         if (s->bbio == NULL)
1810                 {
1811                 bbio=BIO_new(BIO_f_buffer());
1812                 if (bbio == NULL) return(0);
1813                 s->bbio=bbio;
1814                 }
1815         else
1816                 {
1817                 bbio=s->bbio;
1818                 if (s->bbio == s->wbio)
1819                         s->wbio=BIO_pop(s->wbio);
1820                 }
1821         (void)BIO_reset(bbio);
1822 /*      if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1823         if (!BIO_set_read_buffer_size(bbio,1))
1824                 {
1825                 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1826                 return(0);
1827                 }
1828         if (push)
1829                 {
1830                 if (s->wbio != bbio)
1831                         s->wbio=BIO_push(bbio,s->wbio);
1832                 }
1833         else
1834                 {
1835                 if (s->wbio == bbio)
1836                         s->wbio=BIO_pop(bbio);
1837                 }
1838         return(1);
1839         }
1840
1841 void ssl_free_wbio_buffer(SSL *s)
1842         {
1843         BIO *under;
1844
1845         if (s->bbio == NULL) return;
1846
1847         if (s->bbio == s->wbio)
1848                 {
1849                 /* remove buffering */
1850                 under=BIO_pop(s->wbio);
1851                 if (under != NULL)
1852                         s->wbio=under;
1853                 else
1854                         abort(); /* ok */
1855                 }
1856         BIO_free(s->bbio);
1857         s->bbio=NULL;
1858         }
1859
1860 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1861         {
1862         ctx->quiet_shutdown=mode;
1863         }
1864
1865 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1866         {
1867         return(ctx->quiet_shutdown);
1868         }
1869
1870 void SSL_set_quiet_shutdown(SSL *s,int mode)
1871         {
1872         s->quiet_shutdown=mode;
1873         }
1874
1875 int SSL_get_quiet_shutdown(SSL *s)
1876         {
1877         return(s->quiet_shutdown);
1878         }
1879
1880 void SSL_set_shutdown(SSL *s,int mode)
1881         {
1882         s->shutdown=mode;
1883         }
1884
1885 int SSL_get_shutdown(SSL *s)
1886         {
1887         return(s->shutdown);
1888         }
1889
1890 int SSL_version(SSL *s)
1891         {
1892         return(s->version);
1893         }
1894
1895 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1896         {
1897         return(ssl->ctx);
1898         }
1899
1900 #ifndef NO_STDIO
1901 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1902         {
1903         return(X509_STORE_set_default_paths(ctx->cert_store));
1904         }
1905
1906 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1907                 const char *CApath)
1908         {
1909         return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1910         }
1911 #endif
1912
1913 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1914         {
1915         ssl->info_callback=cb;
1916         }
1917
1918 void (*SSL_get_info_callback(SSL *ssl))(void)
1919         {
1920         return((void (*)())ssl->info_callback);
1921         }
1922
1923 int SSL_state(SSL *ssl)
1924         {
1925         return(ssl->state);
1926         }
1927
1928 void SSL_set_verify_result(SSL *ssl,long arg)
1929         {
1930         ssl->verify_result=arg;
1931         }
1932
1933 long SSL_get_verify_result(SSL *ssl)
1934         {
1935         return(ssl->verify_result);
1936         }
1937
1938 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1939                          CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1940         {
1941         ssl_meth_num++;
1942         return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1943                 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1944         }
1945
1946 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1947         {
1948         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1949         }
1950
1951 void *SSL_get_ex_data(SSL *s,int idx)
1952         {
1953         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1954         }
1955
1956 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1957                              CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1958         {
1959         ssl_ctx_meth_num++;
1960         return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1961                 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1962         }
1963
1964 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1965         {
1966         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1967         }
1968
1969 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1970         {
1971         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1972         }
1973
1974 int ssl_ok(SSL *s)
1975         {
1976         return(1);
1977         }
1978
1979 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1980         {
1981         return(ctx->cert_store);
1982         }
1983
1984 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1985         {
1986         if (ctx->cert_store != NULL)
1987                 X509_STORE_free(ctx->cert_store);
1988         ctx->cert_store=store;
1989         }
1990
1991 int SSL_want(SSL *s)
1992         {
1993         return(s->rwstate);
1994         }
1995
1996 /*!
1997  * \brief Set the callback for generating temporary RSA keys.
1998  * \param ctx the SSL context.
1999  * \param cb the callback
2000  */
2001
2002 #ifndef NO_RSA
2003 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2004                                                           int is_export,
2005                                                           int keylength))
2006     {
2007     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2008     }
2009
2010 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2011                                                   int is_export,
2012                                                   int keylength))
2013     {
2014     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2015     }
2016 #endif
2017
2018 #ifdef DOXYGEN
2019 /*!
2020  * \brief The RSA temporary key callback function.
2021  * \param ssl the SSL session.
2022  * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2023  * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2024  * of the required key in bits.
2025  * \return the temporary RSA key.
2026  * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2027  */
2028
2029 RSA *cb(SSL *ssl,int is_export,int keylength)
2030     {}
2031 #endif
2032
2033 /*!
2034  * \brief Set the callback for generating temporary DH keys.
2035  * \param ctx the SSL context.
2036  * \param dh the callback
2037  */
2038
2039 #ifndef NO_DH
2040 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2041                                                         int keylength))
2042     {
2043     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2044     }
2045
2046 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2047                                                 int keylength))
2048     {
2049     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2050     }
2051 #endif
2052
2053 #if defined(_WINDLL) && defined(WIN16)
2054 #include "../crypto/bio/bss_file.c"
2055 #endif
2056
2057 IMPLEMENT_STACK_OF(SSL_CIPHER)
2058 IMPLEMENT_STACK_OF(SSL_COMP)