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
  62 #include <assert.h>
  63 #include <stdio.h>
  64 #include <openssl/objects.h>
  65 #include <openssl/lhash.h>
  66 #include <openssl/x509v3.h>
  67 #include "ssl_locl.h"
  68
  69 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
  70
  71 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_meth=NULL;
  72 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_ctx_meth=NULL;
  73 static int ssl_meth_num=0;
  74 static int ssl_ctx_meth_num=0;
  75
  76 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
  77         /* evil casts, but these functions are only called if there's a library bug */
  78         (int (*)(SSL *,int))ssl_undefined_function,
  79         (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
  80         ssl_undefined_function,
  81         (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
  82         (int (*)(SSL*, int))ssl_undefined_function,
  83         (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
  84         };
  85
  86 int SSL_clear(SSL *s)
  87         {
  88         int state;
  89
  90         if (s->method == NULL)
  91                 {
  92                 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
  93                 return(0);
  94                 }
  95
  96         s->error=0;
  97         s->hit=0;
  98         s->shutdown=0;
  99
 100 #if 0 /* Disabled since version 1.10 of this file (early return not
 101        * needed because SSL_clear is not called when doing renegotiation) */
 102         /* This is set if we are doing dynamic renegotiation so keep
 103          * the old cipher.  It is sort of a SSL_clear_lite :-) */
 104         if (s->new_session) return(1);
 105 #else
 106         if (s->new_session)
 107                 {
 108                 SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR);
 109                 return 0;
 110                 }
 111 #endif
 112
 113         state=s->state; /* Keep to check if we throw away the session-id */
 114         s->type=0;
 115
 116         s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
 117
 118         s->version=s->method->version;
 119         s->client_version=s->version;
 120         s->rwstate=SSL_NOTHING;
 121         s->rstate=SSL_ST_READ_HEADER;
 122 #if 0
 123         s->read_ahead=s->ctx->read_ahead;
 124 #endif
 125
 126         if (s->init_buf != NULL)
 127                 {
 128                 BUF_MEM_free(s->init_buf);
 129                 s->init_buf=NULL;
 130                 }
 131
 132         ssl_clear_cipher_ctx(s);
 133
 134         if (ssl_clear_bad_session(s))
 135                 {
 136                 SSL_SESSION_free(s->session);
 137                 s->session=NULL;
 138                 }
 139
 140         s->first_packet=0;
 141
 142 #if 1
 143         /* Check to see if we were changed into a different method, if
 144          * so, revert back if we are not doing session-id reuse. */
 145         if ((s->session == NULL) && (s->method != s->ctx->method))
 146                 {
 147                 s->method->ssl_free(s);
 148                 s->method=s->ctx->method;
 149                 if (!s->method->ssl_new(s))
 150                         return(0);
 151                 }
 152         else
 153 #endif
 154                 s->method->ssl_clear(s);
 155         return(1);
 156         }
 157
 158 /** Used to change an SSL_CTXs default SSL method type */
 159 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
 160         {
 161         STACK_OF(SSL_CIPHER) *sk;
 162
 163         ctx->method=meth;
 164
 165         sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
 166                 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
 167         if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
 168                 {
 169                 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
 170                 return(0);
 171                 }
 172         return(1);
 173         }
 174
 175 SSL *SSL_new(SSL_CTX *ctx)
 176         {
 177         SSL *s;
 178
 179         if (ctx == NULL)
 180                 {
 181                 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
 182                 return(NULL);
 183                 }
 184         if (ctx->method == NULL)
 185                 {
 186                 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
 187                 return(NULL);
 188                 }
 189
 190         s=(SSL *)OPENSSL_malloc(sizeof(SSL));
 191         if (s == NULL) goto err;
 192         memset(s,0,sizeof(SSL));
 193
 194         if (ctx->cert != NULL)
 195                 {
 196                 /* Earlier library versions used to copy the pointer to
 197                  * the CERT, not its contents; only when setting new
 198                  * parameters for the per-SSL copy, ssl_cert_new would be
 199                  * called (and the direct reference to the per-SSL_CTX
 200                  * settings would be lost, but those still were indirectly
 201                  * accessed for various purposes, and for that reason they
 202                  * used to be known as s->ctx->default_cert).
 203                  * Now we don't look at the SSL_CTX's CERT after having
 204                  * duplicated it once. */
 205
 206                 s->cert = ssl_cert_dup(ctx->cert);
 207                 if (s->cert == NULL)
 208                         goto err;
 209                 }
 210         else
 211                 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
 212         s->sid_ctx_length=ctx->sid_ctx_length;
 213         memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
 214         s->verify_mode=ctx->verify_mode;
 215         s->verify_depth=ctx->verify_depth;
 216         s->verify_callback=ctx->default_verify_callback;
 217         s->purpose = ctx->purpose;
 218         s->trust = ctx->trust;
 219         CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
 220         s->ctx=ctx;
 221
 222         s->verify_result=X509_V_OK;
 223
 224         s->method=ctx->method;
 225
 226         if (!s->method->ssl_new(s))
 227                 goto err;
 228
 229         s->quiet_shutdown=ctx->quiet_shutdown;
 230         s->references=1;
 231         s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
 232         s->options=ctx->options;
 233         s->mode=ctx->mode;
 234         s->read_ahead=ctx->read_ahead; /* used to happen in SSL_clear */
 235         SSL_clear(s);
 236
 237         CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
 238
 239         return(s);
 240 err:
 241         if (s != NULL)
 242                 {
 243                 if (s->cert != NULL)
 244                         ssl_cert_free(s->cert);
 245                 if (s->ctx != NULL)
 246                         SSL_CTX_free(s->ctx); /* decrement reference count */
 247                 OPENSSL_free(s);
 248                 }
 249         SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
 250         return(NULL);
 251         }
 252
 253 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
 254                                    unsigned int sid_ctx_len)
 255     {
 256     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
 257         {
 258         SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
 259         return 0;
 260         }
 261     ctx->sid_ctx_length=sid_ctx_len;
 262     memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
 263
 264     return 1;
 265     }
 266
 267 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
 268                                unsigned int sid_ctx_len)
 269     {
 270     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
 271         {
 272         SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
 273         return 0;
 274         }
 275     ssl->sid_ctx_length=sid_ctx_len;
 276     memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
 277
 278     return 1;
 279     }
 280
 281 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
 282 {
 283         if(X509_PURPOSE_get_by_id(purpose) == -1) {
 284                 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
 285                 return 0;
 286         }
 287         s->purpose = purpose;
 288         return 1;
 289 }
 290
 291 int SSL_set_purpose(SSL *s, int purpose)
 292 {
 293         if(X509_PURPOSE_get_by_id(purpose) == -1) {
 294                 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
 295                 return 0;
 296         }
 297         s->purpose = purpose;
 298         return 1;
 299 }
 300
 301 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
 302 {
 303         if(X509_TRUST_get_by_id(trust) == -1) {
 304                 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
 305                 return 0;
 306         }
 307         s->trust = trust;
 308         return 1;
 309 }
 310
 311 int SSL_set_trust(SSL *s, int trust)
 312 {
 313         if(X509_TRUST_get_by_id(trust) == -1) {
 314                 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
 315                 return 0;
 316         }
 317         s->trust = trust;
 318         return 1;
 319 }
 320
 321 void SSL_free(SSL *s)
 322         {
 323         int i;
 324
 325         if(s == NULL)
 326             return;
 327
 328         i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
 329 #ifdef REF_PRINT
 330         REF_PRINT("SSL",s);
 331 #endif
 332         if (i > 0) return;
 333 #ifdef REF_CHECK
 334         if (i < 0)
 335                 {
 336                 fprintf(stderr,"SSL_free, bad reference count\n");
 337                 abort(); /* ok */
 338                 }
 339 #endif
 340
 341         CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
 342
 343         if (s->bbio != NULL)
 344                 {
 345                 /* If the buffering BIO is in place, pop it off */
 346                 if (s->bbio == s->wbio)
 347                         {
 348                         s->wbio=BIO_pop(s->wbio);
 349                         }
 350                 BIO_free(s->bbio);
 351                 s->bbio=NULL;
 352                 }
 353         if (s->rbio != NULL)
 354                 BIO_free_all(s->rbio);
 355         if ((s->wbio != NULL) && (s->wbio != s->rbio))
 356                 BIO_free_all(s->wbio);
 357
 358         if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
 359
 360         /* add extra stuff */
 361         if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
 362         if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
 363
 364         /* Make the next call work :-) */
 365         if (s->session != NULL)
 366                 {
 367                 ssl_clear_bad_session(s);
 368                 SSL_SESSION_free(s->session);
 369                 }
 370
 371         ssl_clear_cipher_ctx(s);
 372
 373         if (s->cert != NULL) ssl_cert_free(s->cert);
 374         /* Free up if allocated */
 375
 376         if (s->ctx) SSL_CTX_free(s->ctx);
 377
 378         if (s->client_CA != NULL)
 379                 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
 380
 381         if (s->method != NULL) s->method->ssl_free(s);
 382
 383         OPENSSL_free(s);
 384         }
 385
 386 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
 387         {
 388         /* If the output buffering BIO is still in place, remove it
 389          */
 390         if (s->bbio != NULL)
 391                 {
 392                 if (s->wbio == s->bbio)
 393                         {
 394                         s->wbio=s->wbio->next_bio;
 395                         s->bbio->next_bio=NULL;
 396                         }
 397                 }
 398         if ((s->rbio != NULL) && (s->rbio != rbio))
 399                 BIO_free_all(s->rbio);
 400         if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
 401                 BIO_free_all(s->wbio);
 402         s->rbio=rbio;
 403         s->wbio=wbio;
 404         }
 405
 406 BIO *SSL_get_rbio(SSL *s)
 407         { return(s->rbio); }
 408
 409 BIO *SSL_get_wbio(SSL *s)
 410         { return(s->wbio); }
 411
 412 int SSL_get_fd(SSL *s)
 413         {
 414         return(SSL_get_rfd(s));
 415         }
 416
 417 int SSL_get_rfd(SSL *s)
 418         {
 419         int ret= -1;
 420         BIO *b,*r;
 421
 422         b=SSL_get_rbio(s);
 423         r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
 424         if (r != NULL)
 425                 BIO_get_fd(r,&ret);
 426         return(ret);
 427         }
 428
 429 int SSL_get_wfd(SSL *s)
 430         {
 431         int ret= -1;
 432         BIO *b,*r;
 433
 434         b=SSL_get_wbio(s);
 435         r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
 436         if (r != NULL)
 437                 BIO_get_fd(r,&ret);
 438         return(ret);
 439         }
 440
 441 #ifndef NO_SOCK
 442 int SSL_set_fd(SSL *s,int fd)
 443         {
 444         int ret=0;
 445         BIO *bio=NULL;
 446
 447         bio=BIO_new(BIO_s_socket());
 448
 449         if (bio == NULL)
 450                 {
 451                 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
 452                 goto err;
 453                 }
 454         BIO_set_fd(bio,fd,BIO_NOCLOSE);
 455         SSL_set_bio(s,bio,bio);
 456         ret=1;
 457 err:
 458         return(ret);
 459         }
 460
 461 int SSL_set_wfd(SSL *s,int fd)
 462         {
 463         int ret=0;
 464         BIO *bio=NULL;
 465
 466         if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
 467                 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
 468                 {
 469                 bio=BIO_new(BIO_s_socket());
 470
 471                 if (bio == NULL)
 472                         { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
 473                 BIO_set_fd(bio,fd,BIO_NOCLOSE);
 474                 SSL_set_bio(s,SSL_get_rbio(s),bio);
 475                 }
 476         else
 477                 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
 478         ret=1;
 479 err:
 480         return(ret);
 481         }
 482
 483 int SSL_set_rfd(SSL *s,int fd)
 484         {
 485         int ret=0;
 486         BIO *bio=NULL;
 487
 488         if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
 489                 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
 490                 {
 491                 bio=BIO_new(BIO_s_socket());
 492
 493                 if (bio == NULL)
 494                         {
 495                         SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
 496                         goto err;
 497                         }
 498                 BIO_set_fd(bio,fd,BIO_NOCLOSE);
 499                 SSL_set_bio(s,bio,SSL_get_wbio(s));
 500                 }
 501         else
 502                 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
 503         ret=1;
 504 err:
 505         return(ret);
 506         }
 507 #endif
 508
 509
 510 /* return length of latest Finished message we sent, copy to 'buf' */
 511 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
 512         {
 513         size_t ret = 0;
 514
 515         if (s->s3 != NULL)
 516                 {
 517                 ret = s->s3->tmp.finish_md_len;
 518                 if (count > ret)
 519                         count = ret;
 520                 memcpy(buf, s->s3->tmp.finish_md, count);
 521                 }
 522         return ret;
 523         }
 524
 525 /* return length of latest Finished message we expected, copy to 'buf' */
 526 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
 527         {
 528         size_t ret = 0;
 529
 530         if (s->s3 != NULL)
 531                 {
 532                 ret = s->s3->tmp.peer_finish_md_len;
 533                 if (count > ret)
 534                         count = ret;
 535                 memcpy(buf, s->s3->tmp.peer_finish_md, count);
 536                 }
 537         return ret;
 538         }
 539
 540
 541 int SSL_get_verify_mode(SSL *s)
 542         {
 543         return(s->verify_mode);
 544         }
 545
 546 int SSL_get_verify_depth(SSL *s)
 547         {
 548         return(s->verify_depth);
 549         }
 550
 551 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
 552         {
 553         return(s->verify_callback);
 554         }
 555
 556 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
 557         {
 558         return(ctx->verify_mode);
 559         }
 560
 561 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
 562         {
 563         return(ctx->verify_depth);
 564         }
 565
 566 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
 567         {
 568         return(ctx->default_verify_callback);
 569         }
 570
 571 void SSL_set_verify(SSL *s,int mode,
 572                     int (*callback)(int ok,X509_STORE_CTX *ctx))
 573         {
 574         s->verify_mode=mode;
 575         if (callback != NULL)
 576                 s->verify_callback=callback;
 577         }
 578
 579 void SSL_set_verify_depth(SSL *s,int depth)
 580         {
 581         s->verify_depth=depth;
 582         }
 583
 584 void SSL_set_read_ahead(SSL *s,int yes)
 585         {
 586         s->read_ahead=yes;
 587         }
 588
 589 int SSL_get_read_ahead(SSL *s)
 590         {
 591         return(s->read_ahead);
 592         }
 593
 594 int SSL_pending(SSL *s)
 595         {
 596         return(s->method->ssl_pending(s));
 597         }
 598
 599 X509 *SSL_get_peer_certificate(SSL *s)
 600         {
 601         X509 *r;
 602
 603         if ((s == NULL) || (s->session == NULL))
 604                 r=NULL;
 605         else
 606                 r=s->session->peer;
 607
 608         if (r == NULL) return(r);
 609
 610         CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
 611
 612         return(r);
 613         }
 614
 615 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
 616         {
 617         STACK_OF(X509) *r;
 618
 619         if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
 620                 r=NULL;
 621         else
 622                 r=s->session->sess_cert->cert_chain;
 623
 624         /* If we are a client, cert_chain includes the peer's own
 625          * certificate; if we are a server, it does not. */
 626
 627         return(r);
 628         }
 629
 630 /* Now in theory, since the calling process own 't' it should be safe to
 631  * modify.  We need to be able to read f without being hassled */
 632 void SSL_copy_session_id(SSL *t,SSL *f)
 633         {
 634         CERT *tmp;
 635
 636         /* Do we need to to SSL locking? */
 637         SSL_set_session(t,SSL_get_session(f));
 638
 639         /* what if we are setup as SSLv2 but want to talk SSLv3 or
 640          * vice-versa */
 641         if (t->method != f->method)
 642                 {
 643                 t->method->ssl_free(t); /* cleanup current */
 644                 t->method=f->method;    /* change method */
 645                 t->method->ssl_new(t);  /* setup new */
 646                 }
 647
 648         tmp=t->cert;
 649         if (f->cert != NULL)
 650                 {
 651                 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
 652                 t->cert=f->cert;
 653                 }
 654         else
 655                 t->cert=NULL;
 656         if (tmp != NULL) ssl_cert_free(tmp);
 657         SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
 658         }
 659
 660 /* Fix this so it checks all the valid key/cert options */
 661 int SSL_CTX_check_private_key(SSL_CTX *ctx)
 662         {
 663         if (    (ctx == NULL) ||
 664                 (ctx->cert == NULL) ||
 665                 (ctx->cert->key->x509 == NULL))
 666                 {
 667                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 668                 return(0);
 669                 }
 670         if      (ctx->cert->key->privatekey == NULL)
 671                 {
 672                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
 673                 return(0);
 674                 }
 675         return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
 676         }
 677
 678 /* Fix this function so that it takes an optional type parameter */
 679 int SSL_check_private_key(SSL *ssl)
 680         {
 681         if (ssl == NULL)
 682                 {
 683                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
 684                 return(0);
 685                 }
 686         if (ssl->cert == NULL)
 687                 {
 688                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 689                 return 0;
 690                 }
 691         if (ssl->cert->key->x509 == NULL)
 692                 {
 693                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 694                 return(0);
 695                 }
 696         if (ssl->cert->key->privatekey == NULL)
 697                 {
 698                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
 699                 return(0);
 700                 }
 701         return(X509_check_private_key(ssl->cert->key->x509,
 702                 ssl->cert->key->privatekey));
 703         }
 704
 705 int SSL_accept(SSL *s)
 706         {
 707         if (s->handshake_func == 0)
 708                 /* Not properly initialized yet */
 709                 SSL_set_accept_state(s);
 710
 711         return(s->method->ssl_accept(s));
 712         }
 713
 714 int SSL_connect(SSL *s)
 715         {
 716         if (s->handshake_func == 0)
 717                 /* Not properly initialized yet */
 718                 SSL_set_connect_state(s);
 719
 720         return(s->method->ssl_connect(s));
 721         }
 722
 723 long SSL_get_default_timeout(SSL *s)
 724         {
 725         return(s->method->get_timeout());
 726         }
 727
 728 int SSL_read(SSL *s,void *buf,int num)
 729         {
 730         if (s->handshake_func == 0)
 731                 {
 732                 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
 733                 return -1;
 734                 }
 735
 736         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
 737                 {
 738                 s->rwstate=SSL_NOTHING;
 739                 return(0);
 740                 }
 741         return(s->method->ssl_read(s,buf,num));
 742         }
 743
 744 int SSL_peek(SSL *s,void *buf,int num)
 745         {
 746         if (s->handshake_func == 0)
 747                 {
 748                 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
 749                 return -1;
 750                 }
 751
 752         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
 753                 {
 754                 return(0);
 755                 }
 756         return(s->method->ssl_peek(s,buf,num));
 757         }
 758
 759 int SSL_write(SSL *s,const void *buf,int num)
 760         {
 761         if (s->handshake_func == 0)
 762                 {
 763                 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
 764                 return -1;
 765                 }
 766
 767         if (s->shutdown & SSL_SENT_SHUTDOWN)
 768                 {
 769                 s->rwstate=SSL_NOTHING;
 770                 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
 771                 return(-1);
 772                 }
 773         return(s->method->ssl_write(s,buf,num));
 774         }
 775
 776 int SSL_shutdown(SSL *s)
 777         {
 778         /* Note that this function behaves differently from what one might
 779          * expect.  Return values are 0 for no success (yet),
 780          * 1 for success; but calling it once is usually not enough,
 781          * even if blocking I/O is used (see ssl3_shutdown).
 782          */
 783
 784         if (s->handshake_func == 0)
 785                 {
 786                 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
 787                 return -1;
 788                 }
 789
 790         if ((s != NULL) && !SSL_in_init(s))
 791                 return(s->method->ssl_shutdown(s));
 792         else
 793                 return(1);
 794         }
 795
 796 int SSL_renegotiate(SSL *s)
 797         {
 798         s->new_session=1;
 799         return(s->method->ssl_renegotiate(s));
 800         }
 801
 802 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
 803         {
 804         long l;
 805
 806         switch (cmd)
 807                 {
 808         case SSL_CTRL_GET_READ_AHEAD:
 809                 return(s->read_ahead);
 810         case SSL_CTRL_SET_READ_AHEAD:
 811                 l=s->read_ahead;
 812                 s->read_ahead=larg;
 813                 return(l);
 814         case SSL_CTRL_OPTIONS:
 815                 return(s->options|=larg);
 816         case SSL_CTRL_MODE:
 817                 return(s->mode|=larg);
 818         default:
 819                 return(s->method->ssl_ctrl(s,cmd,larg,parg));
 820                 }
 821         }
 822
 823 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
 824         {
 825         switch(cmd)
 826                 {
 827         default:
 828                 return(s->method->ssl_callback_ctrl(s,cmd,fp));
 829                 }
 830         }
 831
 832 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
 833         {
 834         return ctx->sessions;
 835         }
 836
 837 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
 838         {
 839         long l;
 840
 841         switch (cmd)
 842                 {
 843         case SSL_CTRL_GET_READ_AHEAD:
 844                 return(ctx->read_ahead);
 845         case SSL_CTRL_SET_READ_AHEAD:
 846                 l=ctx->read_ahead;
 847                 ctx->read_ahead=larg;
 848                 return(l);
 849
 850         case SSL_CTRL_SET_SESS_CACHE_SIZE:
 851                 l=ctx->session_cache_size;
 852                 ctx->session_cache_size=larg;
 853                 return(l);
 854         case SSL_CTRL_GET_SESS_CACHE_SIZE:
 855                 return(ctx->session_cache_size);
 856         case SSL_CTRL_SET_SESS_CACHE_MODE:
 857                 l=ctx->session_cache_mode;
 858                 ctx->session_cache_mode=larg;
 859                 return(l);
 860         case SSL_CTRL_GET_SESS_CACHE_MODE:
 861                 return(ctx->session_cache_mode);
 862
 863         case SSL_CTRL_SESS_NUMBER:
 864                 return(ctx->sessions->num_items);
 865         case SSL_CTRL_SESS_CONNECT:
 866                 return(ctx->stats.sess_connect);
 867         case SSL_CTRL_SESS_CONNECT_GOOD:
 868                 return(ctx->stats.sess_connect_good);
 869         case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
 870                 return(ctx->stats.sess_connect_renegotiate);
 871         case SSL_CTRL_SESS_ACCEPT:
 872                 return(ctx->stats.sess_accept);
 873         case SSL_CTRL_SESS_ACCEPT_GOOD:
 874                 return(ctx->stats.sess_accept_good);
 875         case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
 876                 return(ctx->stats.sess_accept_renegotiate);
 877         case SSL_CTRL_SESS_HIT:
 878                 return(ctx->stats.sess_hit);
 879         case SSL_CTRL_SESS_CB_HIT:
 880                 return(ctx->stats.sess_cb_hit);
 881         case SSL_CTRL_SESS_MISSES:
 882                 return(ctx->stats.sess_miss);
 883         case SSL_CTRL_SESS_TIMEOUTS:
 884                 return(ctx->stats.sess_timeout);
 885         case SSL_CTRL_SESS_CACHE_FULL:
 886                 return(ctx->stats.sess_cache_full);
 887         case SSL_CTRL_OPTIONS:
 888                 return(ctx->options|=larg);
 889         case SSL_CTRL_MODE:
 890                 return(ctx->mode|=larg);
 891         default:
 892                 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
 893                 }
 894         }
 895
 896 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
 897         {
 898         switch(cmd)
 899                 {
 900         default:
 901                 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
 902                 }
 903         }
 904
 905 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
 906         {
 907         long l;
 908
 909         l=a->id-b->id;
 910         if (l == 0L)
 911                 return(0);
 912         else
 913                 return((l > 0)?1:-1);
 914         }
 915
 916 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
 917                         const SSL_CIPHER * const *bp)
 918         {
 919         long l;
 920
 921         l=(*ap)->id-(*bp)->id;
 922         if (l == 0L)
 923                 return(0);
 924         else
 925                 return((l > 0)?1:-1);
 926         }
 927
 928 /** return a STACK of the ciphers available for the SSL and in order of
 929  * preference */
 930 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
 931         {
 932         if ((s != NULL) && (s->cipher_list != NULL))
 933                 {
 934                 return(s->cipher_list);
 935                 }
 936         else if ((s->ctx != NULL) &&
 937                 (s->ctx->cipher_list != NULL))
 938                 {
 939                 return(s->ctx->cipher_list);
 940                 }
 941         return(NULL);
 942         }
 943
 944 /** return a STACK of the ciphers available for the SSL and in order of
 945  * algorithm id */
 946 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
 947         {
 948         if ((s != NULL) && (s->cipher_list_by_id != NULL))
 949                 {
 950                 return(s->cipher_list_by_id);
 951                 }
 952         else if ((s != NULL) && (s->ctx != NULL) &&
 953                 (s->ctx->cipher_list_by_id != NULL))
 954                 {
 955                 return(s->ctx->cipher_list_by_id);
 956                 }
 957         return(NULL);
 958         }
 959
 960 /** The old interface to get the same thing as SSL_get_ciphers() */
 961 const char *SSL_get_cipher_list(SSL *s,int n)
 962         {
 963         SSL_CIPHER *c;
 964         STACK_OF(SSL_CIPHER) *sk;
 965
 966         if (s == NULL) return(NULL);
 967         sk=SSL_get_ciphers(s);
 968         if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
 969                 return(NULL);
 970         c=sk_SSL_CIPHER_value(sk,n);
 971         if (c == NULL) return(NULL);
 972         return(c->name);
 973         }
 974
 975 /** specify the ciphers to be used by default by the SSL_CTX */
 976 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
 977         {
 978         STACK_OF(SSL_CIPHER) *sk;
 979
 980         sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
 981                 &ctx->cipher_list_by_id,str);
 982 /* XXXX */
 983         return((sk == NULL)?0:1);
 984         }
 985
 986 /** specify the ciphers to be used by the SSL */
 987 int SSL_set_cipher_list(SSL *s,const char *str)
 988         {
 989         STACK_OF(SSL_CIPHER) *sk;
 990
 991         sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
 992                 &s->cipher_list_by_id,str);
 993 /* XXXX */
 994         return((sk == NULL)?0:1);
 995         }
 996
 997 /* works well for SSLv2, not so good for SSLv3 */
 998 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
 999         {
1000         char *p;
1001         const char *cp;
1002         STACK_OF(SSL_CIPHER) *sk;
1003         SSL_CIPHER *c;
1004         int i;
1005
1006         if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1007                 (len < 2))
1008                 return(NULL);
1009
1010         p=buf;
1011         sk=s->session->ciphers;
1012         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1013                 {
1014                 /* Decrement for either the ':' or a '\0' */
1015                 len--;
1016                 c=sk_SSL_CIPHER_value(sk,i);
1017                 for (cp=c->name; *cp; )
1018                         {
1019                         if (len-- == 0)
1020                                 {
1021                                 *p='\0';
1022                                 return(buf);
1023                                 }
1024                         else
1025                                 *(p++)= *(cp++);
1026                         }
1027                 *(p++)=':';
1028                 }
1029         p[-1]='\0';
1030         return(buf);
1031         }
1032
1033 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1034         {
1035         int i,j=0;
1036         SSL_CIPHER *c;
1037         unsigned char *q;
1038
1039         if (sk == NULL) return(0);
1040         q=p;
1041
1042         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1043                 {
1044                 c=sk_SSL_CIPHER_value(sk,i);
1045                 j=ssl_put_cipher_by_char(s,c,p);
1046                 p+=j;
1047                 }
1048         return(p-q);
1049         }
1050
1051 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1052                                                STACK_OF(SSL_CIPHER) **skp)
1053         {
1054         SSL_CIPHER *c;
1055         STACK_OF(SSL_CIPHER) *sk;
1056         int i,n;
1057
1058         n=ssl_put_cipher_by_char(s,NULL,NULL);
1059         if ((num%n) != 0)
1060                 {
1061                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1062                 return(NULL);
1063                 }
1064         if ((skp == NULL) || (*skp == NULL))
1065                 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1066         else
1067                 {
1068                 sk= *skp;
1069                 sk_SSL_CIPHER_zero(sk);
1070                 }
1071
1072         for (i=0; i<num; i+=n)
1073                 {
1074                 c=ssl_get_cipher_by_char(s,p);
1075                 p+=n;
1076                 if (c != NULL)
1077                         {
1078                         if (!sk_SSL_CIPHER_push(sk,c))
1079                                 {
1080                                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1081                                 goto err;
1082                                 }
1083                         }
1084                 }
1085
1086         if (skp != NULL)
1087                 *skp=sk;
1088         return(sk);
1089 err:
1090         if ((skp == NULL) || (*skp == NULL))
1091                 sk_SSL_CIPHER_free(sk);
1092         return(NULL);
1093         }
1094
1095 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1096         {
1097         unsigned long l;
1098
1099         l=(unsigned long)
1100                 ((unsigned int) a->session_id[0]     )|
1101                 ((unsigned int) a->session_id[1]<< 8L)|
1102                 ((unsigned long)a->session_id[2]<<16L)|
1103                 ((unsigned long)a->session_id[3]<<24L);
1104         return(l);
1105         }
1106
1107 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1108         {
1109         if (a->ssl_version != b->ssl_version)
1110                 return(1);
1111         if (a->session_id_length != b->session_id_length)
1112                 return(1);
1113         return(memcmp(a->session_id,b->session_id,a->session_id_length));
1114         }
1115
1116 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1117         {
1118         SSL_CTX *ret=NULL;
1119
1120         if (meth == NULL)
1121                 {
1122                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1123                 return(NULL);
1124                 }
1125
1126         if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1127                 {
1128                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1129                 goto err;
1130                 }
1131         ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1132         if (ret == NULL)
1133                 goto err;
1134
1135         memset(ret,0,sizeof(SSL_CTX));
1136
1137         ret->method=meth;
1138
1139         ret->cert_store=NULL;
1140         ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1141         ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1142         ret->session_cache_head=NULL;
1143         ret->session_cache_tail=NULL;
1144
1145         /* We take the system default */
1146         ret->session_timeout=meth->get_timeout();
1147
1148         ret->new_session_cb=NULL;
1149         ret->remove_session_cb=NULL;
1150         ret->get_session_cb=NULL;
1151
1152         memset((char *)&ret->stats,0,sizeof(ret->stats));
1153
1154         ret->references=1;
1155         ret->quiet_shutdown=0;
1156
1157 /*      ret->cipher=NULL;*/
1158 /*      ret->s2->challenge=NULL;
1159         ret->master_key=NULL;
1160         ret->key_arg=NULL;
1161         ret->s2->conn_id=NULL; */
1162
1163         ret->info_callback=NULL;
1164
1165         ret->app_verify_callback=NULL;
1166         ret->app_verify_arg=NULL;
1167
1168         ret->read_ahead=0;
1169         ret->verify_mode=SSL_VERIFY_NONE;
1170         ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1171         ret->default_verify_callback=NULL;
1172         if ((ret->cert=ssl_cert_new()) == NULL)
1173                 goto err;
1174
1175         ret->default_passwd_callback=NULL;
1176         ret->default_passwd_callback_userdata=NULL;
1177         ret->client_cert_cb=NULL;
1178
1179         ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1180         if (ret->sessions == NULL) goto err;
1181         ret->cert_store=X509_STORE_new();
1182         if (ret->cert_store == NULL) goto err;
1183
1184         ssl_create_cipher_list(ret->method,
1185                 &ret->cipher_list,&ret->cipher_list_by_id,
1186                 SSL_DEFAULT_CIPHER_LIST);
1187         if (ret->cipher_list == NULL
1188             || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1189                 {
1190                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1191                 goto err2;
1192                 }
1193
1194         if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1195                 {
1196                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1197                 goto err2;
1198                 }
1199         if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1200                 {
1201                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1202                 goto err2;
1203                 }
1204         if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1205                 {
1206                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1207                 goto err2;
1208                 }
1209
1210         if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1211                 goto err;
1212
1213         CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1214
1215         ret->extra_certs=NULL;
1216         ret->comp_methods=SSL_COMP_get_compression_methods();
1217
1218         return(ret);
1219 err:
1220         SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1221 err2:
1222         if (ret != NULL) SSL_CTX_free(ret);
1223         return(NULL);
1224         }
1225
1226 static void SSL_COMP_free(SSL_COMP *comp)
1227     { OPENSSL_free(comp); }
1228
1229 void SSL_CTX_free(SSL_CTX *a)
1230         {
1231         int i;
1232
1233         if (a == NULL) return;
1234
1235         i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1236 #ifdef REF_PRINT
1237         REF_PRINT("SSL_CTX",a);
1238 #endif
1239         if (i > 0) return;
1240 #ifdef REF_CHECK
1241         if (i < 0)
1242                 {
1243                 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1244                 abort(); /* ok */
1245                 }
1246 #endif
1247         CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1248
1249         if (a->sessions != NULL)
1250                 {
1251                 SSL_CTX_flush_sessions(a,0);
1252                 lh_free(a->sessions);
1253                 }
1254         if (a->cert_store != NULL)
1255                 X509_STORE_free(a->cert_store);
1256         if (a->cipher_list != NULL)
1257                 sk_SSL_CIPHER_free(a->cipher_list);
1258         if (a->cipher_list_by_id != NULL)
1259                 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1260         if (a->cert != NULL)
1261                 ssl_cert_free(a->cert);
1262         if (a->client_CA != NULL)
1263                 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1264         if (a->extra_certs != NULL)
1265                 sk_X509_pop_free(a->extra_certs,X509_free);
1266         if (a->comp_methods != NULL)
1267                 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1268         OPENSSL_free(a);
1269         }
1270
1271 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1272         {
1273         ctx->default_passwd_callback=cb;
1274         }
1275
1276 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1277         {
1278         ctx->default_passwd_callback_userdata=u;
1279         }
1280
1281 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1282         {
1283         /* now
1284          *     int (*cb)(X509_STORE_CTX *),
1285          * but should be
1286          *     int (*cb)(X509_STORE_CTX *, void *arg)
1287          */
1288         ctx->app_verify_callback=cb;
1289         ctx->app_verify_arg=arg; /* never used */
1290         }
1291
1292 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1293         {
1294         ctx->verify_mode=mode;
1295         ctx->default_verify_callback=cb;
1296         }
1297
1298 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1299         {
1300         ctx->verify_depth=depth;
1301         }
1302
1303 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1304         {
1305         CERT_PKEY *cpk;
1306         int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1307         int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1308         int rsa_tmp_export,dh_tmp_export,kl;
1309         unsigned long mask,emask;
1310
1311         if (c == NULL) return;
1312
1313         kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1314
1315 #ifndef NO_RSA
1316         rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1317         rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1318                 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1319 #else
1320         rsa_tmp=rsa_tmp_export=0;
1321 #endif
1322 #ifndef NO_DH
1323         dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1324         dh_tmp_export=(c->dh_tmp_cb != NULL ||
1325                 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1326 #else
1327         dh_tmp=dh_tmp_export=0;
1328 #endif
1329
1330         cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1331         rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1332         rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1333         cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1334         rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1335         cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1336         dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1337         cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1338         dh_rsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1339         dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1340         cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1341 /* FIX THIS EAY EAY EAY */
1342         dh_dsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1343         dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1344
1345         mask=0;
1346         emask=0;
1347
1348 #ifdef CIPHER_DEBUG
1349         printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1350                 rsa_tmp,rsa_tmp_export,dh_tmp,
1351                 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1352 #endif
1353
1354         if (rsa_enc || (rsa_tmp && rsa_sign))
1355                 mask|=SSL_kRSA;
1356         if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1357                 emask|=SSL_kRSA;
1358
1359 #if 0
1360         /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1361         if (    (dh_tmp || dh_rsa || dh_dsa) &&
1362                 (rsa_enc || rsa_sign || dsa_sign))
1363                 mask|=SSL_kEDH;
1364         if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1365                 (rsa_enc || rsa_sign || dsa_sign))
1366                 emask|=SSL_kEDH;
1367 #endif
1368
1369         if (dh_tmp_export)
1370                 emask|=SSL_kEDH;
1371
1372         if (dh_tmp)
1373                 mask|=SSL_kEDH;
1374
1375         if (dh_rsa) mask|=SSL_kDHr;
1376         if (dh_rsa_export) emask|=SSL_kDHr;
1377
1378         if (dh_dsa) mask|=SSL_kDHd;
1379         if (dh_dsa_export) emask|=SSL_kDHd;
1380
1381         if (rsa_enc || rsa_sign)
1382                 {
1383                 mask|=SSL_aRSA;
1384                 emask|=SSL_aRSA;
1385                 }
1386
1387         if (dsa_sign)
1388                 {
1389                 mask|=SSL_aDSS;
1390                 emask|=SSL_aDSS;
1391                 }
1392
1393         mask|=SSL_aNULL;
1394         emask|=SSL_aNULL;
1395
1396         c->mask=mask;
1397         c->export_mask=emask;
1398         c->valid=1;
1399         }
1400
1401 /* THIS NEEDS CLEANING UP */
1402 X509 *ssl_get_server_send_cert(SSL *s)
1403         {
1404         unsigned long alg,mask,kalg;
1405         CERT *c;
1406         int i,is_export;
1407
1408         c=s->cert;
1409         ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1410         alg=s->s3->tmp.new_cipher->algorithms;
1411         is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1412         mask=is_export?c->export_mask:c->mask;
1413         kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1414
1415         if      (kalg & SSL_kDHr)
1416                 i=SSL_PKEY_DH_RSA;
1417         else if (kalg & SSL_kDHd)
1418                 i=SSL_PKEY_DH_DSA;
1419         else if (kalg & SSL_aDSS)
1420                 i=SSL_PKEY_DSA_SIGN;
1421         else if (kalg & SSL_aRSA)
1422                 {
1423                 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1424                         i=SSL_PKEY_RSA_SIGN;
1425                 else
1426                         i=SSL_PKEY_RSA_ENC;
1427                 }
1428         else /* if (kalg & SSL_aNULL) */
1429                 {
1430                 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1431                 return(NULL);
1432                 }
1433         if (c->pkeys[i].x509 == NULL) return(NULL);
1434         return(c->pkeys[i].x509);
1435         }
1436
1437 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1438         {
1439         unsigned long alg;
1440         CERT *c;
1441
1442         alg=cipher->algorithms;
1443         c=s->cert;
1444
1445         if ((alg & SSL_aDSS) &&
1446                 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1447                 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1448         else if (alg & SSL_aRSA)
1449                 {
1450                 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1451                         return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1452                 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1453                         return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1454                 else
1455                         return(NULL);
1456                 }
1457         else /* if (alg & SSL_aNULL) */
1458                 {
1459                 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1460                 return(NULL);
1461                 }
1462         }
1463
1464 void ssl_update_cache(SSL *s,int mode)
1465         {
1466         int i;
1467
1468         /* If the session_id_length is 0, we are not supposed to cache it,
1469          * and it would be rather hard to do anyway :-) */
1470         if (s->session->session_id_length == 0) return;
1471
1472         if ((s->ctx->session_cache_mode & mode)
1473                 && (!s->hit)
1474                 && SSL_CTX_add_session(s->ctx,s->session)
1475                 && (s->ctx->new_session_cb != NULL))
1476                 {
1477                 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1478                 if (!s->ctx->new_session_cb(s,s->session))
1479                         SSL_SESSION_free(s->session);
1480                 }
1481
1482         /* auto flush every 255 connections */
1483         i=s->ctx->session_cache_mode;
1484         if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1485                 ((i & mode) == mode))
1486                 {
1487                 if (  (((mode & SSL_SESS_CACHE_CLIENT)
1488                         ?s->ctx->stats.sess_connect_good
1489                         :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1490                         {
1491                         SSL_CTX_flush_sessions(s->ctx,time(NULL));
1492                         }
1493                 }
1494         }
1495
1496 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1497         {
1498         return(s->method);
1499         }
1500
1501 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1502         {
1503         int conn= -1;
1504         int ret=1;
1505
1506         if (s->method != meth)
1507                 {
1508                 if (s->handshake_func != NULL)
1509                         conn=(s->handshake_func == s->method->ssl_connect);
1510
1511                 if (s->method->version == meth->version)
1512                         s->method=meth;
1513                 else
1514                         {
1515                         s->method->ssl_free(s);
1516                         s->method=meth;
1517                         ret=s->method->ssl_new(s);
1518                         }
1519
1520                 if (conn == 1)
1521                         s->handshake_func=meth->ssl_connect;
1522                 else if (conn == 0)
1523                         s->handshake_func=meth->ssl_accept;
1524                 }
1525         return(ret);
1526         }
1527
1528 int SSL_get_error(SSL *s,int i)
1529         {
1530         int reason;
1531         unsigned long l;
1532         BIO *bio;
1533
1534         if (i > 0) return(SSL_ERROR_NONE);
1535
1536         /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1537          * etc, where we do encode the error */
1538         if ((l=ERR_peek_error()) != 0)
1539                 {
1540                 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1541                         return(SSL_ERROR_SYSCALL);
1542                 else
1543                         return(SSL_ERROR_SSL);
1544                 }
1545
1546         if ((i < 0) && SSL_want_read(s))
1547                 {
1548                 bio=SSL_get_rbio(s);
1549                 if (BIO_should_read(bio))
1550                         return(SSL_ERROR_WANT_READ);
1551                 else if (BIO_should_write(bio))
1552                         /* This one doesn't make too much sense ... We never try
1553                          * to write to the rbio, and an application program where
1554                          * rbio and wbio are separate couldn't even know what it
1555                          * should wait for.
1556                          * However if we ever set s->rwstate incorrectly
1557                          * (so that we have SSL_want_read(s) instead of
1558                          * SSL_want_write(s)) and rbio and wbio *are* the same,
1559                          * this test works around that bug; so it might be safer
1560                          * to keep it. */
1561                         return(SSL_ERROR_WANT_WRITE);
1562                 else if (BIO_should_io_special(bio))
1563                         {
1564                         reason=BIO_get_retry_reason(bio);
1565                         if (reason == BIO_RR_CONNECT)
1566                                 return(SSL_ERROR_WANT_CONNECT);
1567                         else
1568                                 return(SSL_ERROR_SYSCALL); /* unknown */
1569                         }
1570                 }
1571
1572         if ((i < 0) && SSL_want_write(s))
1573                 {
1574                 bio=SSL_get_wbio(s);
1575                 if (BIO_should_write(bio))
1576                         return(SSL_ERROR_WANT_WRITE);
1577                 else if (BIO_should_read(bio))
1578                         /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1579                         return(SSL_ERROR_WANT_READ);
1580                 else if (BIO_should_io_special(bio))
1581                         {
1582                         reason=BIO_get_retry_reason(bio);
1583                         if (reason == BIO_RR_CONNECT)
1584                                 return(SSL_ERROR_WANT_CONNECT);
1585                         else
1586                                 return(SSL_ERROR_SYSCALL);
1587                         }
1588                 }
1589         if ((i < 0) && SSL_want_x509_lookup(s))
1590                 {
1591                 return(SSL_ERROR_WANT_X509_LOOKUP);
1592                 }
1593
1594         if (i == 0)
1595                 {
1596                 if (s->version == SSL2_VERSION)
1597                         {
1598                         /* assume it is the socket being closed */
1599                         return(SSL_ERROR_ZERO_RETURN);
1600                         }
1601                 else
1602                         {
1603                         if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1604                                 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1605                                 return(SSL_ERROR_ZERO_RETURN);
1606                         }
1607                 }
1608         return(SSL_ERROR_SYSCALL);
1609         }
1610
1611 int SSL_do_handshake(SSL *s)
1612         {
1613         int ret=1;
1614
1615         if (s->handshake_func == NULL)
1616                 {
1617                 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1618                 return(-1);
1619                 }
1620
1621         s->method->ssl_renegotiate_check(s);
1622
1623         if (SSL_in_init(s) || SSL_in_before(s))
1624                 {
1625                 ret=s->handshake_func(s);
1626                 }
1627         return(ret);
1628         }
1629
1630 /* For the next 2 functions, SSL_clear() sets shutdown and so
1631  * one of these calls will reset it */
1632 void SSL_set_accept_state(SSL *s)
1633         {
1634         s->server=1;
1635         s->shutdown=0;
1636         s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1637         s->handshake_func=s->method->ssl_accept;
1638         /* clear the current cipher */
1639         ssl_clear_cipher_ctx(s);
1640         }
1641
1642 void SSL_set_connect_state(SSL *s)
1643         {
1644         s->server=0;
1645         s->shutdown=0;
1646         s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1647         s->handshake_func=s->method->ssl_connect;
1648         /* clear the current cipher */
1649         ssl_clear_cipher_ctx(s);
1650         }
1651
1652 int ssl_undefined_function(SSL *s)
1653         {
1654         SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1655         return(0);
1656         }
1657
1658 SSL_METHOD *ssl_bad_method(int ver)
1659         {
1660         SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1661         return(NULL);
1662         }
1663
1664 const char *SSL_get_version(SSL *s)
1665         {
1666         if (s->version == TLS1_VERSION)
1667                 return("TLSv1");
1668         else if (s->version == SSL3_VERSION)
1669                 return("SSLv3");
1670         else if (s->version == SSL2_VERSION)
1671                 return("SSLv2");
1672         else
1673                 return("unknown");
1674         }
1675
1676 SSL *SSL_dup(SSL *s)
1677         {
1678         STACK_OF(X509_NAME) *sk;
1679         X509_NAME *xn;
1680         SSL *ret;
1681         int i;
1682
1683         if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1684             return(NULL);
1685
1686         if (s->session != NULL)
1687                 {
1688                 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1689                 SSL_copy_session_id(ret,s);
1690                 }
1691         else
1692                 {
1693                 /* No session has been established yet, so we have to expect
1694                  * that s->cert or ret->cert will be changed later --
1695                  * they should not both point to the same object,
1696                  * and thus we can't use SSL_copy_session_id. */
1697
1698                 ret->method = s->method;
1699                 ret->method->ssl_new(ret);
1700
1701                 if (s->cert != NULL)
1702                         {
1703                         if (ret->cert != NULL)
1704                                 {
1705                                 ssl_cert_free(ret->cert);
1706                                 }
1707                         ret->cert = ssl_cert_dup(s->cert);
1708                         if (ret->cert == NULL)
1709                                 goto err;
1710                         }
1711
1712                 SSL_set_session_id_context(ret,
1713                         s->sid_ctx, s->sid_ctx_length);
1714                 }
1715
1716         SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1717         SSL_set_verify(ret,SSL_get_verify_mode(s),
1718                 SSL_get_verify_callback(s));
1719         SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1720
1721         SSL_set_info_callback(ret,SSL_get_info_callback(s));
1722
1723         ret->debug=s->debug;
1724         ret->options=s->options;
1725
1726         /* copy app data, a little dangerous perhaps */
1727         if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1728                 goto err;
1729
1730         /* setup rbio, and wbio */
1731         if (s->rbio != NULL)
1732                 {
1733                 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1734                         goto err;
1735                 }
1736         if (s->wbio != NULL)
1737                 {
1738                 if (s->wbio != s->rbio)
1739                         {
1740                         if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1741                                 goto err;
1742                         }
1743                 else
1744                         ret->wbio=ret->rbio;
1745                 }
1746
1747         /* dup the cipher_list and cipher_list_by_id stacks */
1748         if (s->cipher_list != NULL)
1749                 {
1750                 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1751                         goto err;
1752                 }
1753         if (s->cipher_list_by_id != NULL)
1754                 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1755                         == NULL)
1756                         goto err;
1757
1758         /* Dup the client_CA list */
1759         if (s->client_CA != NULL)
1760                 {
1761                 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1762                 ret->client_CA=sk;
1763                 for (i=0; i<sk_X509_NAME_num(sk); i++)
1764                         {
1765                         xn=sk_X509_NAME_value(sk,i);
1766                         if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1767                                 {
1768                                 X509_NAME_free(xn);
1769                                 goto err;
1770                                 }
1771                         }
1772                 }
1773
1774         ret->shutdown=s->shutdown;
1775         ret->state=s->state;
1776         ret->handshake_func=s->handshake_func;
1777         ret->server=s->server;
1778
1779         if (0)
1780                 {
1781 err:
1782                 if (ret != NULL) SSL_free(ret);
1783                 ret=NULL;
1784                 }
1785         return(ret);
1786         }
1787
1788 void ssl_clear_cipher_ctx(SSL *s)
1789         {
1790         if (s->enc_read_ctx != NULL)
1791                 {
1792                 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1793                 OPENSSL_free(s->enc_read_ctx);
1794                 s->enc_read_ctx=NULL;
1795                 }
1796         if (s->enc_write_ctx != NULL)
1797                 {
1798                 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1799                 OPENSSL_free(s->enc_write_ctx);
1800                 s->enc_write_ctx=NULL;
1801                 }
1802         if (s->expand != NULL)
1803                 {
1804                 COMP_CTX_free(s->expand);
1805                 s->expand=NULL;
1806                 }
1807         if (s->compress != NULL)
1808                 {
1809                 COMP_CTX_free(s->compress);
1810                 s->compress=NULL;
1811                 }
1812         }
1813
1814 /* Fix this function so that it takes an optional type parameter */
1815 X509 *SSL_get_certificate(SSL *s)
1816         {
1817         if (s->cert != NULL)
1818                 return(s->cert->key->x509);
1819         else
1820                 return(NULL);
1821         }
1822
1823 /* Fix this function so that it takes an optional type parameter */
1824 EVP_PKEY *SSL_get_privatekey(SSL *s)
1825         {
1826         if (s->cert != NULL)
1827                 return(s->cert->key->privatekey);
1828         else
1829                 return(NULL);
1830         }
1831
1832 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1833         {
1834         if ((s->session != NULL) && (s->session->cipher != NULL))
1835                 return(s->session->cipher);
1836         return(NULL);
1837         }
1838
1839 int ssl_init_wbio_buffer(SSL *s,int push)
1840         {
1841         BIO *bbio;
1842
1843         if (s->bbio == NULL)
1844                 {
1845                 bbio=BIO_new(BIO_f_buffer());
1846                 if (bbio == NULL) return(0);
1847                 s->bbio=bbio;
1848                 }
1849         else
1850                 {
1851                 bbio=s->bbio;
1852                 if (s->bbio == s->wbio)
1853                         s->wbio=BIO_pop(s->wbio);
1854                 }
1855         (void)BIO_reset(bbio);
1856 /*      if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1857         if (!BIO_set_read_buffer_size(bbio,1))
1858                 {
1859                 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1860                 return(0);
1861                 }
1862         if (push)
1863                 {
1864                 if (s->wbio != bbio)
1865                         s->wbio=BIO_push(bbio,s->wbio);
1866                 }
1867         else
1868                 {
1869                 if (s->wbio == bbio)
1870                         s->wbio=BIO_pop(bbio);
1871                 }
1872         return(1);
1873         }
1874
1875 void ssl_free_wbio_buffer(SSL *s)
1876         {
1877         if (s->bbio == NULL) return;
1878
1879         if (s->bbio == s->wbio)
1880                 {
1881                 /* remove buffering */
1882                 s->wbio=BIO_pop(s->wbio);
1883 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
1884                 assert(s->wbio != NULL);
1885 #endif
1886         }
1887         BIO_free(s->bbio);
1888         s->bbio=NULL;
1889         }
1890
1891 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1892         {
1893         ctx->quiet_shutdown=mode;
1894         }
1895
1896 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1897         {
1898         return(ctx->quiet_shutdown);
1899         }
1900
1901 void SSL_set_quiet_shutdown(SSL *s,int mode)
1902         {
1903         s->quiet_shutdown=mode;
1904         }
1905
1906 int SSL_get_quiet_shutdown(SSL *s)
1907         {
1908         return(s->quiet_shutdown);
1909         }
1910
1911 void SSL_set_shutdown(SSL *s,int mode)
1912         {
1913         s->shutdown=mode;
1914         }
1915
1916 int SSL_get_shutdown(SSL *s)
1917         {
1918         return(s->shutdown);
1919         }
1920
1921 int SSL_version(SSL *s)
1922         {
1923         return(s->version);
1924         }
1925
1926 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1927         {
1928         return(ssl->ctx);
1929         }
1930
1931 #ifndef NO_STDIO
1932 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1933         {
1934         return(X509_STORE_set_default_paths(ctx->cert_store));
1935         }
1936
1937 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1938                 const char *CApath)
1939         {
1940         return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1941         }
1942 #endif
1943
1944 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1945         {
1946         ssl->info_callback=cb;
1947         }
1948
1949 void (*SSL_get_info_callback(SSL *ssl))(void)
1950         {
1951         return((void (*)())ssl->info_callback);
1952         }
1953
1954 int SSL_state(SSL *ssl)
1955         {
1956         return(ssl->state);
1957         }
1958
1959 void SSL_set_verify_result(SSL *ssl,long arg)
1960         {
1961         ssl->verify_result=arg;
1962         }
1963
1964 long SSL_get_verify_result(SSL *ssl)
1965         {
1966         return(ssl->verify_result);
1967         }
1968
1969 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1970                          CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1971         {
1972         ssl_meth_num++;
1973         return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1974                 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1975         }
1976
1977 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1978         {
1979         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1980         }
1981
1982 void *SSL_get_ex_data(SSL *s,int idx)
1983         {
1984         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1985         }
1986
1987 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1988                              CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1989         {
1990         ssl_ctx_meth_num++;
1991         return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1992                 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1993         }
1994
1995 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1996         {
1997         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1998         }
1999
2000 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
2001         {
2002         return(CRYPTO_get_ex_data(&s->ex_data,idx));
2003         }
2004
2005 int ssl_ok(SSL *s)
2006         {
2007         return(1);
2008         }
2009
2010 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
2011         {
2012         return(ctx->cert_store);
2013         }
2014
2015 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2016         {
2017         if (ctx->cert_store != NULL)
2018                 X509_STORE_free(ctx->cert_store);
2019         ctx->cert_store=store;
2020         }
2021
2022 int SSL_want(SSL *s)
2023         {
2024         return(s->rwstate);
2025         }
2026
2027 /*!
2028  * \brief Set the callback for generating temporary RSA keys.
2029  * \param ctx the SSL context.
2030  * \param cb the callback
2031  */
2032
2033 #ifndef NO_RSA
2034 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2035                                                           int is_export,
2036                                                           int keylength))
2037     {
2038     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2039     }
2040
2041 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2042                                                   int is_export,
2043                                                   int keylength))
2044     {
2045     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2046     }
2047 #endif
2048
2049 #ifdef DOXYGEN
2050 /*!
2051  * \brief The RSA temporary key callback function.
2052  * \param ssl the SSL session.
2053  * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2054  * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2055  * of the required key in bits.
2056  * \return the temporary RSA key.
2057  * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2058  */
2059
2060 RSA *cb(SSL *ssl,int is_export,int keylength)
2061     {}
2062 #endif
2063
2064 /*!
2065  * \brief Set the callback for generating temporary DH keys.
2066  * \param ctx the SSL context.
2067  * \param dh the callback
2068  */
2069
2070 #ifndef NO_DH
2071 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2072                                                         int keylength))
2073     {
2074     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2075     }
2076
2077 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2078                                                 int keylength))
2079     {
2080     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2081     }
2082 #endif
2083
2084 #if defined(_WINDLL) && defined(WIN16)
2085 #include "../crypto/bio/bss_file.c"
2086 #endif
2087
2088 IMPLEMENT_STACK_OF(SSL_CIPHER)
2089 IMPLEMENT_STACK_OF(SSL_COMP)