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