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 #ifndef NO_KRB5
 195         s->kssl_ctx = kssl_ctx_new();
 196 #endif  /* NO_KRB5 */
 197
 198         if (ctx->cert != NULL)
 199                 {
 200                 /* Earlier library versions used to copy the pointer to
 201                  * the CERT, not its contents; only when setting new
 202                  * parameters for the per-SSL copy, ssl_cert_new would be
 203                  * called (and the direct reference to the per-SSL_CTX
 204                  * settings would be lost, but those still were indirectly
 205                  * accessed for various purposes, and for that reason they
 206                  * used to be known as s->ctx->default_cert).
 207                  * Now we don't look at the SSL_CTX's CERT after having
 208                  * duplicated it once. */
 209
 210                 s->cert = ssl_cert_dup(ctx->cert);
 211                 if (s->cert == NULL)
 212                         goto err;
 213                 }
 214         else
 215                 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
 216         s->sid_ctx_length=ctx->sid_ctx_length;
 217         memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
 218         s->verify_mode=ctx->verify_mode;
 219         s->verify_depth=ctx->verify_depth;
 220         s->verify_callback=ctx->default_verify_callback;
 221         s->purpose = ctx->purpose;
 222         s->trust = ctx->trust;
 223         CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
 224         s->ctx=ctx;
 225
 226         s->verify_result=X509_V_OK;
 227
 228         s->method=ctx->method;
 229
 230         if (!s->method->ssl_new(s))
 231                 goto err;
 232
 233         s->quiet_shutdown=ctx->quiet_shutdown;
 234         s->references=1;
 235         s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
 236         s->options=ctx->options;
 237         s->mode=ctx->mode;
 238         s->read_ahead=ctx->read_ahead; /* used to happen in SSL_clear */
 239         SSL_clear(s);
 240
 241         CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
 242
 243         return(s);
 244 err:
 245         if (s != NULL)
 246                 {
 247                 if (s->cert != NULL)
 248                         ssl_cert_free(s->cert);
 249                 if (s->ctx != NULL)
 250                         SSL_CTX_free(s->ctx); /* decrement reference count */
 251                 OPENSSL_free(s);
 252                 }
 253         SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
 254         return(NULL);
 255         }
 256
 257 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
 258                                    unsigned int sid_ctx_len)
 259     {
 260     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
 261         {
 262         SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
 263         return 0;
 264         }
 265     ctx->sid_ctx_length=sid_ctx_len;
 266     memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
 267
 268     return 1;
 269     }
 270
 271 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
 272                                unsigned int sid_ctx_len)
 273     {
 274     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
 275         {
 276         SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
 277         return 0;
 278         }
 279     ssl->sid_ctx_length=sid_ctx_len;
 280     memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
 281
 282     return 1;
 283     }
 284
 285 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
 286 {
 287         if(X509_PURPOSE_get_by_id(purpose) == -1) {
 288                 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
 289                 return 0;
 290         }
 291         s->purpose = purpose;
 292         return 1;
 293 }
 294
 295 int SSL_set_purpose(SSL *s, int purpose)
 296 {
 297         if(X509_PURPOSE_get_by_id(purpose) == -1) {
 298                 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
 299                 return 0;
 300         }
 301         s->purpose = purpose;
 302         return 1;
 303 }
 304
 305 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
 306 {
 307         if(X509_TRUST_get_by_id(trust) == -1) {
 308                 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
 309                 return 0;
 310         }
 311         s->trust = trust;
 312         return 1;
 313 }
 314
 315 int SSL_set_trust(SSL *s, int trust)
 316 {
 317         if(X509_TRUST_get_by_id(trust) == -1) {
 318                 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
 319                 return 0;
 320         }
 321         s->trust = trust;
 322         return 1;
 323 }
 324
 325 void SSL_free(SSL *s)
 326         {
 327         int i;
 328
 329         if(s == NULL)
 330             return;
 331
 332         i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
 333 #ifdef REF_PRINT
 334         REF_PRINT("SSL",s);
 335 #endif
 336         if (i > 0) return;
 337 #ifdef REF_CHECK
 338         if (i < 0)
 339                 {
 340                 fprintf(stderr,"SSL_free, bad reference count\n");
 341                 abort(); /* ok */
 342                 }
 343 #endif
 344
 345         CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
 346
 347         if (s->bbio != NULL)
 348                 {
 349                 /* If the buffering BIO is in place, pop it off */
 350                 if (s->bbio == s->wbio)
 351                         {
 352                         s->wbio=BIO_pop(s->wbio);
 353                         }
 354                 BIO_free(s->bbio);
 355                 s->bbio=NULL;
 356                 }
 357         if (s->rbio != NULL)
 358                 BIO_free_all(s->rbio);
 359         if ((s->wbio != NULL) && (s->wbio != s->rbio))
 360                 BIO_free_all(s->wbio);
 361
 362         if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
 363
 364         /* add extra stuff */
 365         if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
 366         if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
 367
 368         /* Make the next call work :-) */
 369         if (s->session != NULL)
 370                 {
 371                 ssl_clear_bad_session(s);
 372                 SSL_SESSION_free(s->session);
 373                 }
 374
 375         ssl_clear_cipher_ctx(s);
 376
 377         if (s->cert != NULL) ssl_cert_free(s->cert);
 378         /* Free up if allocated */
 379
 380         if (s->ctx) SSL_CTX_free(s->ctx);
 381
 382         if (s->client_CA != NULL)
 383                 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
 384
 385         if (s->method != NULL) s->method->ssl_free(s);
 386
 387         OPENSSL_free(s);
 388         }
 389
 390 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
 391         {
 392         /* If the output buffering BIO is still in place, remove it
 393          */
 394         if (s->bbio != NULL)
 395                 {
 396                 if (s->wbio == s->bbio)
 397                         {
 398                         s->wbio=s->wbio->next_bio;
 399                         s->bbio->next_bio=NULL;
 400                         }
 401                 }
 402         if ((s->rbio != NULL) && (s->rbio != rbio))
 403                 BIO_free_all(s->rbio);
 404         if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
 405                 BIO_free_all(s->wbio);
 406         s->rbio=rbio;
 407         s->wbio=wbio;
 408         }
 409
 410 BIO *SSL_get_rbio(SSL *s)
 411         { return(s->rbio); }
 412
 413 BIO *SSL_get_wbio(SSL *s)
 414         { return(s->wbio); }
 415
 416 int SSL_get_fd(SSL *s)
 417         {
 418         int ret= -1;
 419         BIO *b,*r;
 420
 421         b=SSL_get_rbio(s);
 422         r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
 423         if (r != NULL)
 424                 BIO_get_fd(r,&ret);
 425         return(ret);
 426         }
 427
 428 #ifndef NO_SOCK
 429 int SSL_set_fd(SSL *s,int fd)
 430         {
 431         int ret=0;
 432         BIO *bio=NULL;
 433
 434         bio=BIO_new(BIO_s_socket());
 435
 436         if (bio == NULL)
 437                 {
 438                 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
 439                 goto err;
 440                 }
 441         BIO_set_fd(bio,fd,BIO_NOCLOSE);
 442         SSL_set_bio(s,bio,bio);
 443         ret=1;
 444 err:
 445         return(ret);
 446         }
 447
 448 int SSL_set_wfd(SSL *s,int fd)
 449         {
 450         int ret=0;
 451         BIO *bio=NULL;
 452
 453         if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
 454                 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
 455                 {
 456                 bio=BIO_new(BIO_s_socket());
 457
 458                 if (bio == NULL)
 459                         { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
 460                 BIO_set_fd(bio,fd,BIO_NOCLOSE);
 461                 SSL_set_bio(s,SSL_get_rbio(s),bio);
 462                 }
 463         else
 464                 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
 465         ret=1;
 466 err:
 467         return(ret);
 468         }
 469
 470 int SSL_set_rfd(SSL *s,int fd)
 471         {
 472         int ret=0;
 473         BIO *bio=NULL;
 474
 475         if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
 476                 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
 477                 {
 478                 bio=BIO_new(BIO_s_socket());
 479
 480                 if (bio == NULL)
 481                         {
 482                         SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
 483                         goto err;
 484                         }
 485                 BIO_set_fd(bio,fd,BIO_NOCLOSE);
 486                 SSL_set_bio(s,bio,SSL_get_wbio(s));
 487                 }
 488         else
 489                 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
 490         ret=1;
 491 err:
 492         return(ret);
 493         }
 494 #endif
 495
 496
 497 /* return length of latest Finished message we sent, copy to 'buf' */
 498 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
 499         {
 500         size_t ret = 0;
 501
 502         if (s->s3 != NULL)
 503                 {
 504                 ret = s->s3->tmp.finish_md_len;
 505                 if (count > ret)
 506                         count = ret;
 507                 memcpy(buf, s->s3->tmp.finish_md, count);
 508                 }
 509         return ret;
 510         }
 511
 512 /* return length of latest Finished message we expected, copy to 'buf' */
 513 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
 514         {
 515         size_t ret = 0;
 516
 517         if (s->s3 != NULL)
 518                 {
 519                 ret = s->s3->tmp.peer_finish_md_len;
 520                 if (count > ret)
 521                         count = ret;
 522                 memcpy(buf, s->s3->tmp.peer_finish_md, count);
 523                 }
 524         return ret;
 525         }
 526
 527
 528 int SSL_get_verify_mode(SSL *s)
 529         {
 530         return(s->verify_mode);
 531         }
 532
 533 int SSL_get_verify_depth(SSL *s)
 534         {
 535         return(s->verify_depth);
 536         }
 537
 538 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
 539         {
 540         return(s->verify_callback);
 541         }
 542
 543 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
 544         {
 545         return(ctx->verify_mode);
 546         }
 547
 548 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
 549         {
 550         return(ctx->verify_depth);
 551         }
 552
 553 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
 554         {
 555         return(ctx->default_verify_callback);
 556         }
 557
 558 void SSL_set_verify(SSL *s,int mode,
 559                     int (*callback)(int ok,X509_STORE_CTX *ctx))
 560         {
 561         s->verify_mode=mode;
 562         if (callback != NULL)
 563                 s->verify_callback=callback;
 564         }
 565
 566 void SSL_set_verify_depth(SSL *s,int depth)
 567         {
 568         s->verify_depth=depth;
 569         }
 570
 571 void SSL_set_read_ahead(SSL *s,int yes)
 572         {
 573         s->read_ahead=yes;
 574         }
 575
 576 int SSL_get_read_ahead(SSL *s)
 577         {
 578         return(s->read_ahead);
 579         }
 580
 581 int SSL_pending(SSL *s)
 582         {
 583         /* SSL_pending cannot work properly if read-ahead is enabled
 584          * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
 585          * and it is impossible to fix since SSL_pending cannot report
 586          * errors that may be observed while scanning the new data.
 587          * (Note that SSL_pending() is often used as a boolean value,
 588          * so we'd better not return -1.)
 589          */
 590         return(s->method->ssl_pending(s));
 591         }
 592
 593 X509 *SSL_get_peer_certificate(SSL *s)
 594         {
 595         X509 *r;
 596
 597         if ((s == NULL) || (s->session == NULL))
 598                 r=NULL;
 599         else
 600                 r=s->session->peer;
 601
 602         if (r == NULL) return(r);
 603
 604         CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
 605
 606         return(r);
 607         }
 608
 609 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
 610         {
 611         STACK_OF(X509) *r;
 612
 613         if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
 614                 r=NULL;
 615         else
 616                 r=s->session->sess_cert->cert_chain;
 617
 618         /* If we are a client, cert_chain includes the peer's own
 619          * certificate; if we are a server, it does not. */
 620
 621         return(r);
 622         }
 623
 624 /* Now in theory, since the calling process own 't' it should be safe to
 625  * modify.  We need to be able to read f without being hassled */
 626 void SSL_copy_session_id(SSL *t,SSL *f)
 627         {
 628         CERT *tmp;
 629
 630         /* Do we need to to SSL locking? */
 631         SSL_set_session(t,SSL_get_session(f));
 632
 633         /* what if we are setup as SSLv2 but want to talk SSLv3 or
 634          * vice-versa */
 635         if (t->method != f->method)
 636                 {
 637                 t->method->ssl_free(t); /* cleanup current */
 638                 t->method=f->method;    /* change method */
 639                 t->method->ssl_new(t);  /* setup new */
 640                 }
 641
 642         tmp=t->cert;
 643         if (f->cert != NULL)
 644                 {
 645                 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
 646                 t->cert=f->cert;
 647                 }
 648         else
 649                 t->cert=NULL;
 650         if (tmp != NULL) ssl_cert_free(tmp);
 651         SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
 652         }
 653
 654 /* Fix this so it checks all the valid key/cert options */
 655 int SSL_CTX_check_private_key(SSL_CTX *ctx)
 656         {
 657         if (    (ctx == NULL) ||
 658                 (ctx->cert == NULL) ||
 659                 (ctx->cert->key->x509 == NULL))
 660                 {
 661                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 662                 return(0);
 663                 }
 664         if      (ctx->cert->key->privatekey == NULL)
 665                 {
 666                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
 667                 return(0);
 668                 }
 669         return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
 670         }
 671
 672 /* Fix this function so that it takes an optional type parameter */
 673 int SSL_check_private_key(SSL *ssl)
 674         {
 675         if (ssl == NULL)
 676                 {
 677                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
 678                 return(0);
 679                 }
 680         if (ssl->cert == NULL)
 681                 {
 682                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 683                 return 0;
 684                 }
 685         if (ssl->cert->key->x509 == NULL)
 686                 {
 687                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 688                 return(0);
 689                 }
 690         if (ssl->cert->key->privatekey == NULL)
 691                 {
 692                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
 693                 return(0);
 694                 }
 695         return(X509_check_private_key(ssl->cert->key->x509,
 696                 ssl->cert->key->privatekey));
 697         }
 698
 699 int SSL_accept(SSL *s)
 700         {
 701         if (s->handshake_func == 0)
 702                 /* Not properly initialized yet */
 703                 SSL_set_accept_state(s);
 704
 705         return(s->method->ssl_accept(s));
 706         }
 707
 708 int SSL_connect(SSL *s)
 709         {
 710         if (s->handshake_func == 0)
 711                 /* Not properly initialized yet */
 712                 SSL_set_connect_state(s);
 713
 714         return(s->method->ssl_connect(s));
 715         }
 716
 717 long SSL_get_default_timeout(SSL *s)
 718         {
 719         return(s->method->get_timeout());
 720         }
 721
 722 int SSL_read(SSL *s,char *buf,int num)
 723         {
 724         if (s->handshake_func == 0)
 725                 {
 726                 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
 727                 return -1;
 728                 }
 729
 730         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
 731                 {
 732                 s->rwstate=SSL_NOTHING;
 733                 return(0);
 734                 }
 735         return(s->method->ssl_read(s,buf,num));
 736         }
 737
 738 int SSL_peek(SSL *s,char *buf,int num)
 739         {
 740         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
 741                 {
 742                 return(0);
 743                 }
 744         return(s->method->ssl_peek(s,buf,num));
 745         }
 746
 747 int SSL_write(SSL *s,const char *buf,int num)
 748         {
 749         if (s->handshake_func == 0)
 750                 {
 751                 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
 752                 return -1;
 753                 }
 754
 755         if (s->shutdown & SSL_SENT_SHUTDOWN)
 756                 {
 757                 s->rwstate=SSL_NOTHING;
 758                 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
 759                 return(-1);
 760                 }
 761         return(s->method->ssl_write(s,buf,num));
 762         }
 763
 764 int SSL_shutdown(SSL *s)
 765         {
 766         /* Note that this function behaves differently from what one might
 767          * expect.  Return values are 0 for no success (yet),
 768          * 1 for success; but calling it once is usually not enough,
 769          * even if blocking I/O is used (see ssl3_shutdown).
 770          */
 771
 772         if (s->handshake_func == 0)
 773                 {
 774                 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
 775                 return -1;
 776                 }
 777
 778         if ((s != NULL) && !SSL_in_init(s))
 779                 return(s->method->ssl_shutdown(s));
 780         else
 781                 return(1);
 782         }
 783
 784 int SSL_renegotiate(SSL *s)
 785         {
 786         s->new_session=1;
 787         return(s->method->ssl_renegotiate(s));
 788         }
 789
 790 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
 791         {
 792         long l;
 793
 794         switch (cmd)
 795                 {
 796         case SSL_CTRL_GET_READ_AHEAD:
 797                 return(s->read_ahead);
 798         case SSL_CTRL_SET_READ_AHEAD:
 799                 l=s->read_ahead;
 800                 s->read_ahead=larg;
 801                 return(l);
 802         case SSL_CTRL_OPTIONS:
 803                 return(s->options|=larg);
 804         case SSL_CTRL_MODE:
 805                 return(s->mode|=larg);
 806         default:
 807                 return(s->method->ssl_ctrl(s,cmd,larg,parg));
 808                 }
 809         }
 810
 811 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
 812         {
 813         switch(cmd)
 814                 {
 815         default:
 816                 return(s->method->ssl_callback_ctrl(s,cmd,fp));
 817                 }
 818         }
 819
 820 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
 821         {
 822         return ctx->sessions;
 823         }
 824
 825 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
 826         {
 827         long l;
 828
 829         switch (cmd)
 830                 {
 831         case SSL_CTRL_GET_READ_AHEAD:
 832                 return(ctx->read_ahead);
 833         case SSL_CTRL_SET_READ_AHEAD:
 834                 l=ctx->read_ahead;
 835                 ctx->read_ahead=larg;
 836                 return(l);
 837
 838         case SSL_CTRL_SET_SESS_CACHE_SIZE:
 839                 l=ctx->session_cache_size;
 840                 ctx->session_cache_size=larg;
 841                 return(l);
 842         case SSL_CTRL_GET_SESS_CACHE_SIZE:
 843                 return(ctx->session_cache_size);
 844         case SSL_CTRL_SET_SESS_CACHE_MODE:
 845                 l=ctx->session_cache_mode;
 846                 ctx->session_cache_mode=larg;
 847                 return(l);
 848         case SSL_CTRL_GET_SESS_CACHE_MODE:
 849                 return(ctx->session_cache_mode);
 850
 851         case SSL_CTRL_SESS_NUMBER:
 852                 return(ctx->sessions->num_items);
 853         case SSL_CTRL_SESS_CONNECT:
 854                 return(ctx->stats.sess_connect);
 855         case SSL_CTRL_SESS_CONNECT_GOOD:
 856                 return(ctx->stats.sess_connect_good);
 857         case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
 858                 return(ctx->stats.sess_connect_renegotiate);
 859         case SSL_CTRL_SESS_ACCEPT:
 860                 return(ctx->stats.sess_accept);
 861         case SSL_CTRL_SESS_ACCEPT_GOOD:
 862                 return(ctx->stats.sess_accept_good);
 863         case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
 864                 return(ctx->stats.sess_accept_renegotiate);
 865         case SSL_CTRL_SESS_HIT:
 866                 return(ctx->stats.sess_hit);
 867         case SSL_CTRL_SESS_CB_HIT:
 868                 return(ctx->stats.sess_cb_hit);
 869         case SSL_CTRL_SESS_MISSES:
 870                 return(ctx->stats.sess_miss);
 871         case SSL_CTRL_SESS_TIMEOUTS:
 872                 return(ctx->stats.sess_timeout);
 873         case SSL_CTRL_SESS_CACHE_FULL:
 874                 return(ctx->stats.sess_cache_full);
 875         case SSL_CTRL_OPTIONS:
 876                 return(ctx->options|=larg);
 877         case SSL_CTRL_MODE:
 878                 return(ctx->mode|=larg);
 879         default:
 880                 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
 881                 }
 882         }
 883
 884 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
 885         {
 886         switch(cmd)
 887                 {
 888         default:
 889                 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
 890                 }
 891         }
 892
 893 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
 894         {
 895         long l;
 896
 897         l=a->id-b->id;
 898         if (l == 0L)
 899                 return(0);
 900         else
 901                 return((l > 0)?1:-1);
 902         }
 903
 904 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
 905                         const SSL_CIPHER * const *bp)
 906         {
 907         long l;
 908
 909         l=(*ap)->id-(*bp)->id;
 910         if (l == 0L)
 911                 return(0);
 912         else
 913                 return((l > 0)?1:-1);
 914         }
 915
 916 /** return a STACK of the ciphers available for the SSL and in order of
 917  * preference */
 918 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
 919         {
 920         if ((s != NULL) && (s->cipher_list != NULL))
 921                 {
 922                 return(s->cipher_list);
 923                 }
 924         else if ((s->ctx != NULL) &&
 925                 (s->ctx->cipher_list != NULL))
 926                 {
 927                 return(s->ctx->cipher_list);
 928                 }
 929         return(NULL);
 930         }
 931
 932 /** return a STACK of the ciphers available for the SSL and in order of
 933  * algorithm id */
 934 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
 935         {
 936         if ((s != NULL) && (s->cipher_list_by_id != NULL))
 937                 {
 938                 return(s->cipher_list_by_id);
 939                 }
 940         else if ((s != NULL) && (s->ctx != NULL) &&
 941                 (s->ctx->cipher_list_by_id != NULL))
 942                 {
 943                 return(s->ctx->cipher_list_by_id);
 944                 }
 945         return(NULL);
 946         }
 947
 948 /** The old interface to get the same thing as SSL_get_ciphers() */
 949 const char *SSL_get_cipher_list(SSL *s,int n)
 950         {
 951         SSL_CIPHER *c;
 952         STACK_OF(SSL_CIPHER) *sk;
 953
 954         if (s == NULL) return(NULL);
 955         sk=SSL_get_ciphers(s);
 956         if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
 957                 return(NULL);
 958         c=sk_SSL_CIPHER_value(sk,n);
 959         if (c == NULL) return(NULL);
 960         return(c->name);
 961         }
 962
 963 /** specify the ciphers to be used by default by the SSL_CTX */
 964 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
 965         {
 966         STACK_OF(SSL_CIPHER) *sk;
 967
 968         sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
 969                 &ctx->cipher_list_by_id,str);
 970 /* XXXX */
 971         return((sk == NULL)?0:1);
 972         }
 973
 974 /** specify the ciphers to be used by the SSL */
 975 int SSL_set_cipher_list(SSL *s,const char *str)
 976         {
 977         STACK_OF(SSL_CIPHER) *sk;
 978
 979         sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
 980                 &s->cipher_list_by_id,str);
 981 /* XXXX */
 982         return((sk == NULL)?0:1);
 983         }
 984
 985 /* works well for SSLv2, not so good for SSLv3 */
 986 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
 987         {
 988         char *p;
 989         const char *cp;
 990         STACK_OF(SSL_CIPHER) *sk;
 991         SSL_CIPHER *c;
 992         int i;
 993
 994         if ((s->session == NULL) || (s->session->ciphers == NULL) ||
 995                 (len < 2))
 996                 return(NULL);
 997
 998         p=buf;
 999         sk=s->session->ciphers;
1000         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1001                 {
1002                 /* Decrement for either the ':' or a '\0' */
1003                 len--;
1004                 c=sk_SSL_CIPHER_value(sk,i);
1005                 for (cp=c->name; *cp; )
1006                         {
1007                         if (len-- == 0)
1008                                 {
1009                                 *p='\0';
1010                                 return(buf);
1011                                 }
1012                         else
1013                                 *(p++)= *(cp++);
1014                         }
1015                 *(p++)=':';
1016                 }
1017         p[-1]='\0';
1018         return(buf);
1019         }
1020
1021 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1022         {
1023         int i,j=0;
1024         SSL_CIPHER *c;
1025         unsigned char *q;
1026
1027         if (sk == NULL) return(0);
1028         q=p;
1029
1030         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1031                 {
1032                 c=sk_SSL_CIPHER_value(sk,i);
1033                 j=ssl_put_cipher_by_char(s,c,p);
1034                 p+=j;
1035                 }
1036         return(p-q);
1037         }
1038
1039 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1040                                                STACK_OF(SSL_CIPHER) **skp)
1041         {
1042         SSL_CIPHER *c;
1043         STACK_OF(SSL_CIPHER) *sk;
1044         int i,n;
1045
1046         n=ssl_put_cipher_by_char(s,NULL,NULL);
1047         if ((num%n) != 0)
1048                 {
1049                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1050                 return(NULL);
1051                 }
1052         if ((skp == NULL) || (*skp == NULL))
1053                 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1054         else
1055                 {
1056                 sk= *skp;
1057                 sk_SSL_CIPHER_zero(sk);
1058                 }
1059
1060         for (i=0; i<num; i+=n)
1061                 {
1062                 c=ssl_get_cipher_by_char(s,p);
1063                 p+=n;
1064                 if (c != NULL)
1065                         {
1066                         if (!sk_SSL_CIPHER_push(sk,c))
1067                                 {
1068                                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1069                                 goto err;
1070                                 }
1071                         }
1072                 }
1073
1074         if (skp != NULL)
1075                 *skp=sk;
1076         return(sk);
1077 err:
1078         if ((skp == NULL) || (*skp == NULL))
1079                 sk_SSL_CIPHER_free(sk);
1080         return(NULL);
1081         }
1082
1083 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1084         {
1085         unsigned long l;
1086
1087         l=(unsigned long)
1088                 ((unsigned int) a->session_id[0]     )|
1089                 ((unsigned int) a->session_id[1]<< 8L)|
1090                 ((unsigned long)a->session_id[2]<<16L)|
1091                 ((unsigned long)a->session_id[3]<<24L);
1092         return(l);
1093         }
1094
1095 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1096         {
1097         if (a->ssl_version != b->ssl_version)
1098                 return(1);
1099         if (a->session_id_length != b->session_id_length)
1100                 return(1);
1101         return(memcmp(a->session_id,b->session_id,a->session_id_length));
1102         }
1103
1104 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1105         {
1106         SSL_CTX *ret=NULL;
1107
1108         if (meth == NULL)
1109                 {
1110                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1111                 return(NULL);
1112                 }
1113
1114         if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1115                 {
1116                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1117                 goto err;
1118                 }
1119         ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1120         if (ret == NULL)
1121                 goto err;
1122
1123         memset(ret,0,sizeof(SSL_CTX));
1124
1125         ret->method=meth;
1126
1127         ret->cert_store=NULL;
1128         ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1129         ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1130         ret->session_cache_head=NULL;
1131         ret->session_cache_tail=NULL;
1132
1133         /* We take the system default */
1134         ret->session_timeout=meth->get_timeout();
1135
1136         ret->new_session_cb=NULL;
1137         ret->remove_session_cb=NULL;
1138         ret->get_session_cb=NULL;
1139
1140         memset((char *)&ret->stats,0,sizeof(ret->stats));
1141
1142         ret->references=1;
1143         ret->quiet_shutdown=0;
1144
1145 /*      ret->cipher=NULL;*/
1146 /*      ret->s2->challenge=NULL;
1147         ret->master_key=NULL;
1148         ret->key_arg=NULL;
1149         ret->s2->conn_id=NULL; */
1150
1151         ret->info_callback=NULL;
1152
1153         ret->app_verify_callback=NULL;
1154         ret->app_verify_arg=NULL;
1155
1156         ret->read_ahead=0;
1157         ret->verify_mode=SSL_VERIFY_NONE;
1158         ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1159         ret->default_verify_callback=NULL;
1160         if ((ret->cert=ssl_cert_new()) == NULL)
1161                 goto err;
1162
1163         ret->default_passwd_callback=NULL;
1164         ret->default_passwd_callback_userdata=NULL;
1165         ret->client_cert_cb=NULL;
1166
1167         ret->sessions=lh_new((LHASH_HASH_FN_TYPE)SSL_SESSION_hash,
1168                         (LHASH_COMP_FN_TYPE)SSL_SESSION_cmp);
1169         if (ret->sessions == NULL) goto err;
1170         ret->cert_store=X509_STORE_new();
1171         if (ret->cert_store == NULL) goto err;
1172
1173         ssl_create_cipher_list(ret->method,
1174                 &ret->cipher_list,&ret->cipher_list_by_id,
1175                 SSL_DEFAULT_CIPHER_LIST);
1176         if (ret->cipher_list == NULL
1177             || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1178                 {
1179                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1180                 goto err2;
1181                 }
1182
1183         if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1184                 {
1185                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1186                 goto err2;
1187                 }
1188         if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1189                 {
1190                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1191                 goto err2;
1192                 }
1193         if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1194                 {
1195                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1196                 goto err2;
1197                 }
1198
1199         if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1200                 goto err;
1201
1202         CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1203
1204         ret->extra_certs=NULL;
1205         ret->comp_methods=SSL_COMP_get_compression_methods();
1206
1207         return(ret);
1208 err:
1209         SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1210 err2:
1211         if (ret != NULL) SSL_CTX_free(ret);
1212         return(NULL);
1213         }
1214
1215 #if 0
1216 static void SSL_COMP_free(SSL_COMP *comp)
1217     { OPENSSL_free(comp); }
1218 #endif
1219
1220 void SSL_CTX_free(SSL_CTX *a)
1221         {
1222         int i;
1223
1224         if (a == NULL) return;
1225
1226         i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1227 #ifdef REF_PRINT
1228         REF_PRINT("SSL_CTX",a);
1229 #endif
1230         if (i > 0) return;
1231 #ifdef REF_CHECK
1232         if (i < 0)
1233                 {
1234                 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1235                 abort(); /* ok */
1236                 }
1237 #endif
1238         CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1239
1240         if (a->sessions != NULL)
1241                 {
1242                 SSL_CTX_flush_sessions(a,0);
1243                 lh_free(a->sessions);
1244                 }
1245         if (a->cert_store != NULL)
1246                 X509_STORE_free(a->cert_store);
1247         if (a->cipher_list != NULL)
1248                 sk_SSL_CIPHER_free(a->cipher_list);
1249         if (a->cipher_list_by_id != NULL)
1250                 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1251         if (a->cert != NULL)
1252                 ssl_cert_free(a->cert);
1253         if (a->client_CA != NULL)
1254                 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1255         if (a->extra_certs != NULL)
1256                 sk_X509_pop_free(a->extra_certs,X509_free);
1257 #if 0 /* This should never be done, since it removes a global database */
1258         if (a->comp_methods != NULL)
1259                 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1260 #else
1261         a->comp_methods = NULL;
1262 #endif
1263         OPENSSL_free(a);
1264         }
1265
1266 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1267         {
1268         ctx->default_passwd_callback=cb;
1269         }
1270
1271 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1272         {
1273         ctx->default_passwd_callback_userdata=u;
1274         }
1275
1276 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1277         {
1278         /* now
1279          *     int (*cb)(X509_STORE_CTX *),
1280          * but should be
1281          *     int (*cb)(X509_STORE_CTX *, void *arg)
1282          */
1283         ctx->app_verify_callback=cb;
1284         ctx->app_verify_arg=arg; /* never used */
1285         }
1286
1287 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1288         {
1289         ctx->verify_mode=mode;
1290         ctx->default_verify_callback=cb;
1291         /* This needs cleaning up EAY EAY EAY */
1292         X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1293         }
1294
1295 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1296         {
1297         ctx->verify_depth=depth;
1298         }
1299
1300 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1301         {
1302         CERT_PKEY *cpk;
1303         int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1304         int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1305         int rsa_tmp_export,dh_tmp_export,kl;
1306         unsigned long mask,emask;
1307
1308         if (c == NULL) return;
1309
1310         kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1311
1312 #ifndef NO_RSA
1313         rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1314         rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1315                 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1316 #else
1317         rsa_tmp=rsa_tmp_export=0;
1318 #endif
1319 #ifndef NO_DH
1320         dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1321         dh_tmp_export=(c->dh_tmp_cb != NULL ||
1322                 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1323 #else
1324         dh_tmp=dh_tmp_export=0;
1325 #endif
1326
1327         cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1328         rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1329         rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1330         cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1331         rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1332         cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1333         dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1334         cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1335         dh_rsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1336         dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1337         cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1338 /* FIX THIS EAY EAY EAY */
1339         dh_dsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1340         dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1341
1342         mask=0;
1343         emask=0;
1344
1345 #ifdef CIPHER_DEBUG
1346         printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1347                 rsa_tmp,rsa_tmp_export,dh_tmp,
1348                 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1349 #endif
1350
1351         if (rsa_enc || (rsa_tmp && rsa_sign))
1352                 mask|=SSL_kRSA;
1353         if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1354                 emask|=SSL_kRSA;
1355
1356 #if 0
1357         /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1358         if (    (dh_tmp || dh_rsa || dh_dsa) &&
1359                 (rsa_enc || rsa_sign || dsa_sign))
1360                 mask|=SSL_kEDH;
1361         if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1362                 (rsa_enc || rsa_sign || dsa_sign))
1363                 emask|=SSL_kEDH;
1364 #endif
1365
1366         if (dh_tmp_export)
1367                 emask|=SSL_kEDH;
1368
1369         if (dh_tmp)
1370                 mask|=SSL_kEDH;
1371
1372         if (dh_rsa) mask|=SSL_kDHr;
1373         if (dh_rsa_export) emask|=SSL_kDHr;
1374
1375         if (dh_dsa) mask|=SSL_kDHd;
1376         if (dh_dsa_export) emask|=SSL_kDHd;
1377
1378         if (rsa_enc || rsa_sign)
1379                 {
1380                 mask|=SSL_aRSA;
1381                 emask|=SSL_aRSA;
1382                 }
1383
1384         if (dsa_sign)
1385                 {
1386                 mask|=SSL_aDSS;
1387                 emask|=SSL_aDSS;
1388                 }
1389
1390         mask|=SSL_aNULL;
1391         emask|=SSL_aNULL;
1392
1393 #ifndef NO_KRB5
1394         mask|=SSL_kKRB5|SSL_aKRB5;
1395         emask|=SSL_kKRB5|SSL_aKRB5;
1396 #endif
1397
1398         c->mask=mask;
1399         c->export_mask=emask;
1400         c->valid=1;
1401         }
1402
1403 /* THIS NEEDS CLEANING UP */
1404 X509 *ssl_get_server_send_cert(SSL *s)
1405         {
1406         unsigned long alg,mask,kalg;
1407         CERT *c;
1408         int i,is_export;
1409
1410         c=s->cert;
1411         ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1412         alg=s->s3->tmp.new_cipher->algorithms;
1413         is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1414         mask=is_export?c->export_mask:c->mask;
1415         kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1416
1417         if      (kalg & SSL_kDHr)
1418                 i=SSL_PKEY_DH_RSA;
1419         else if (kalg & SSL_kDHd)
1420                 i=SSL_PKEY_DH_DSA;
1421         else if (kalg & SSL_aDSS)
1422                 i=SSL_PKEY_DSA_SIGN;
1423         else if (kalg & SSL_aRSA)
1424                 {
1425                 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1426                         i=SSL_PKEY_RSA_SIGN;
1427                 else
1428                         i=SSL_PKEY_RSA_ENC;
1429                 }
1430         else if (kalg & SSL_aKRB5)
1431                 {
1432                 /* VRS something else here? */
1433                 return(NULL);
1434                 }
1435         else /* if (kalg & SSL_aNULL) */
1436                 {
1437                 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1438                 return(NULL);
1439                 }
1440         if (c->pkeys[i].x509 == NULL) return(NULL);
1441         return(c->pkeys[i].x509);
1442         }
1443
1444 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1445         {
1446         unsigned long alg;
1447         CERT *c;
1448
1449         alg=cipher->algorithms;
1450         c=s->cert;
1451
1452         if ((alg & SSL_aDSS) &&
1453                 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1454                 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1455         else if (alg & SSL_aRSA)
1456                 {
1457                 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1458                         return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1459                 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1460                         return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1461                 else
1462                         return(NULL);
1463                 }
1464         else /* if (alg & SSL_aNULL) */
1465                 {
1466                 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1467                 return(NULL);
1468                 }
1469         }
1470
1471 void ssl_update_cache(SSL *s,int mode)
1472         {
1473         int i;
1474
1475         /* If the session_id_length is 0, we are not supposed to cache it,
1476          * and it would be rather hard to do anyway :-) */
1477         if (s->session->session_id_length == 0) return;
1478
1479         if ((s->ctx->session_cache_mode & mode)
1480                 && (!s->hit)
1481                 && SSL_CTX_add_session(s->ctx,s->session)
1482                 && (s->ctx->new_session_cb != NULL))
1483                 {
1484                 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1485                 if (!s->ctx->new_session_cb(s,s->session))
1486                         SSL_SESSION_free(s->session);
1487                 }
1488
1489         /* auto flush every 255 connections */
1490         i=s->ctx->session_cache_mode;
1491         if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1492                 ((i & mode) == mode))
1493                 {
1494                 if (  (((mode & SSL_SESS_CACHE_CLIENT)
1495                         ?s->ctx->stats.sess_connect_good
1496                         :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1497                         {
1498                         SSL_CTX_flush_sessions(s->ctx,time(NULL));
1499                         }
1500                 }
1501         }
1502
1503 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1504         {
1505         return(s->method);
1506         }
1507
1508 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1509         {
1510         int conn= -1;
1511         int ret=1;
1512
1513         if (s->method != meth)
1514                 {
1515                 if (s->handshake_func != NULL)
1516                         conn=(s->handshake_func == s->method->ssl_connect);
1517
1518                 if (s->method->version == meth->version)
1519                         s->method=meth;
1520                 else
1521                         {
1522                         s->method->ssl_free(s);
1523                         s->method=meth;
1524                         ret=s->method->ssl_new(s);
1525                         }
1526
1527                 if (conn == 1)
1528                         s->handshake_func=meth->ssl_connect;
1529                 else if (conn == 0)
1530                         s->handshake_func=meth->ssl_accept;
1531                 }
1532         return(ret);
1533         }
1534
1535 int SSL_get_error(SSL *s,int i)
1536         {
1537         int reason;
1538         unsigned long l;
1539         BIO *bio;
1540
1541         if (i > 0) return(SSL_ERROR_NONE);
1542
1543         /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1544          * etc, where we do encode the error */
1545         if ((l=ERR_peek_error()) != 0)
1546                 {
1547                 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1548                         return(SSL_ERROR_SYSCALL);
1549                 else
1550                         return(SSL_ERROR_SSL);
1551                 }
1552
1553         if ((i < 0) && SSL_want_read(s))
1554                 {
1555                 bio=SSL_get_rbio(s);
1556                 if (BIO_should_read(bio))
1557                         return(SSL_ERROR_WANT_READ);
1558                 else if (BIO_should_write(bio))
1559                         /* This one doesn't make too much sense ... We never try
1560                          * to write to the rbio, and an application program where
1561                          * rbio and wbio are separate couldn't even know what it
1562                          * should wait for.
1563                          * However if we ever set s->rwstate incorrectly
1564                          * (so that we have SSL_want_read(s) instead of
1565                          * SSL_want_write(s)) and rbio and wbio *are* the same,
1566                          * this test works around that bug; so it might be safer
1567                          * to keep it. */
1568                         return(SSL_ERROR_WANT_WRITE);
1569                 else if (BIO_should_io_special(bio))
1570                         {
1571                         reason=BIO_get_retry_reason(bio);
1572                         if (reason == BIO_RR_CONNECT)
1573                                 return(SSL_ERROR_WANT_CONNECT);
1574                         else if (reason == BIO_RR_ACCEPT)
1575                                 return(SSL_ERROR_WANT_ACCEPT);
1576                         else
1577                                 return(SSL_ERROR_SYSCALL); /* unknown */
1578                         }
1579                 }
1580
1581         if ((i < 0) && SSL_want_write(s))
1582                 {
1583                 bio=SSL_get_wbio(s);
1584                 if (BIO_should_write(bio))
1585                         return(SSL_ERROR_WANT_WRITE);
1586                 else if (BIO_should_read(bio))
1587                         /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1588                         return(SSL_ERROR_WANT_READ);
1589                 else if (BIO_should_io_special(bio))
1590                         {
1591                         reason=BIO_get_retry_reason(bio);
1592                         if (reason == BIO_RR_CONNECT)
1593                                 return(SSL_ERROR_WANT_CONNECT);
1594                         else if (reason == BIO_RR_ACCEPT)
1595                                 return(SSL_ERROR_WANT_ACCEPT);
1596                         else
1597                                 return(SSL_ERROR_SYSCALL);
1598                         }
1599                 }
1600         if ((i < 0) && SSL_want_x509_lookup(s))
1601                 {
1602                 return(SSL_ERROR_WANT_X509_LOOKUP);
1603                 }
1604
1605         if (i == 0)
1606                 {
1607                 if (s->version == SSL2_VERSION)
1608                         {
1609                         /* assume it is the socket being closed */
1610                         return(SSL_ERROR_ZERO_RETURN);
1611                         }
1612                 else
1613                         {
1614                         if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1615                                 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1616                                 return(SSL_ERROR_ZERO_RETURN);
1617                         }
1618                 }
1619         return(SSL_ERROR_SYSCALL);
1620         }
1621
1622 int SSL_do_handshake(SSL *s)
1623         {
1624         int ret=1;
1625
1626         if (s->handshake_func == NULL)
1627                 {
1628                 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1629                 return(-1);
1630                 }
1631
1632         s->method->ssl_renegotiate_check(s);
1633
1634         if (SSL_in_init(s) || SSL_in_before(s))
1635                 {
1636                 ret=s->handshake_func(s);
1637                 }
1638         return(ret);
1639         }
1640
1641 /* For the next 2 functions, SSL_clear() sets shutdown and so
1642  * one of these calls will reset it */
1643 void SSL_set_accept_state(SSL *s)
1644         {
1645         s->server=1;
1646         s->shutdown=0;
1647         s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1648         s->handshake_func=s->method->ssl_accept;
1649         /* clear the current cipher */
1650         ssl_clear_cipher_ctx(s);
1651         }
1652
1653 void SSL_set_connect_state(SSL *s)
1654         {
1655         s->server=0;
1656         s->shutdown=0;
1657         s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1658         s->handshake_func=s->method->ssl_connect;
1659         /* clear the current cipher */
1660         ssl_clear_cipher_ctx(s);
1661         }
1662
1663 int ssl_undefined_function(SSL *s)
1664         {
1665         SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1666         return(0);
1667         }
1668
1669 SSL_METHOD *ssl_bad_method(int ver)
1670         {
1671         SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1672         return(NULL);
1673         }
1674
1675 const char *SSL_get_version(SSL *s)
1676         {
1677         if (s->version == TLS1_VERSION)
1678                 return("TLSv1");
1679         else if (s->version == SSL3_VERSION)
1680                 return("SSLv3");
1681         else if (s->version == SSL2_VERSION)
1682                 return("SSLv2");
1683         else
1684                 return("unknown");
1685         }
1686
1687 SSL *SSL_dup(SSL *s)
1688         {
1689         STACK_OF(X509_NAME) *sk;
1690         X509_NAME *xn;
1691         SSL *ret;
1692         int i;
1693
1694         if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1695             return(NULL);
1696
1697         if (s->session != NULL)
1698                 {
1699                 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1700                 SSL_copy_session_id(ret,s);
1701                 }
1702         else
1703                 {
1704                 /* No session has been established yet, so we have to expect
1705                  * that s->cert or ret->cert will be changed later --
1706                  * they should not both point to the same object,
1707                  * and thus we can't use SSL_copy_session_id. */
1708
1709                 ret->method = s->method;
1710                 ret->method->ssl_new(ret);
1711
1712                 if (s->cert != NULL)
1713                         {
1714                         ret->cert = ssl_cert_dup(s->cert);
1715                         if (ret->cert == NULL)
1716                                 goto err;
1717                         }
1718
1719                 SSL_set_session_id_context(ret,
1720                         s->sid_ctx, s->sid_ctx_length);
1721                 }
1722
1723         SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1724         SSL_set_verify(ret,SSL_get_verify_mode(s),
1725                 SSL_get_verify_callback(s));
1726         SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1727
1728         SSL_set_info_callback(ret,SSL_get_info_callback(s));
1729
1730         ret->debug=s->debug;
1731         ret->options=s->options;
1732
1733         /* copy app data, a little dangerous perhaps */
1734         if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1735                 goto err;
1736
1737         /* setup rbio, and wbio */
1738         if (s->rbio != NULL)
1739                 {
1740                 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1741                         goto err;
1742                 }
1743         if (s->wbio != NULL)
1744                 {
1745                 if (s->wbio != s->rbio)
1746                         {
1747                         if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1748                                 goto err;
1749                         }
1750                 else
1751                         ret->wbio=ret->rbio;
1752                 }
1753
1754         /* dup the cipher_list and cipher_list_by_id stacks */
1755         if (s->cipher_list != NULL)
1756                 {
1757                 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1758                         goto err;
1759                 }
1760         if (s->cipher_list_by_id != NULL)
1761                 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1762                         == NULL)
1763                         goto err;
1764
1765         /* Dup the client_CA list */
1766         if (s->client_CA != NULL)
1767                 {
1768                 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1769                 ret->client_CA=sk;
1770                 for (i=0; i<sk_X509_NAME_num(sk); i++)
1771                         {
1772                         xn=sk_X509_NAME_value(sk,i);
1773                         if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1774                                 {
1775                                 X509_NAME_free(xn);
1776                                 goto err;
1777                                 }
1778                         }
1779                 }
1780
1781         ret->shutdown=s->shutdown;
1782         ret->state=s->state;
1783         ret->handshake_func=s->handshake_func;
1784         ret->server=s->server;
1785
1786         if (0)
1787                 {
1788 err:
1789                 if (ret != NULL) SSL_free(ret);
1790                 ret=NULL;
1791                 }
1792         return(ret);
1793         }
1794
1795 void ssl_clear_cipher_ctx(SSL *s)
1796         {
1797         if (s->enc_read_ctx != NULL)
1798                 {
1799                 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1800                 OPENSSL_free(s->enc_read_ctx);
1801                 s->enc_read_ctx=NULL;
1802                 }
1803         if (s->enc_write_ctx != NULL)
1804                 {
1805                 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1806                 OPENSSL_free(s->enc_write_ctx);
1807                 s->enc_write_ctx=NULL;
1808                 }
1809         if (s->expand != NULL)
1810                 {
1811                 COMP_CTX_free(s->expand);
1812                 s->expand=NULL;
1813                 }
1814         if (s->compress != NULL)
1815                 {
1816                 COMP_CTX_free(s->compress);
1817                 s->compress=NULL;
1818                 }
1819         }
1820
1821 /* Fix this function so that it takes an optional type parameter */
1822 X509 *SSL_get_certificate(SSL *s)
1823         {
1824         if (s->cert != NULL)
1825                 return(s->cert->key->x509);
1826         else
1827                 return(NULL);
1828         }
1829
1830 /* Fix this function so that it takes an optional type parameter */
1831 EVP_PKEY *SSL_get_privatekey(SSL *s)
1832         {
1833         if (s->cert != NULL)
1834                 return(s->cert->key->privatekey);
1835         else
1836                 return(NULL);
1837         }
1838
1839 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1840         {
1841         if ((s->session != NULL) && (s->session->cipher != NULL))
1842                 return(s->session->cipher);
1843         return(NULL);
1844         }
1845
1846 int ssl_init_wbio_buffer(SSL *s,int push)
1847         {
1848         BIO *bbio;
1849
1850         if (s->bbio == NULL)
1851                 {
1852                 bbio=BIO_new(BIO_f_buffer());
1853                 if (bbio == NULL) return(0);
1854                 s->bbio=bbio;
1855                 }
1856         else
1857                 {
1858                 bbio=s->bbio;
1859                 if (s->bbio == s->wbio)
1860                         s->wbio=BIO_pop(s->wbio);
1861                 }
1862         (void)BIO_reset(bbio);
1863 /*      if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1864         if (!BIO_set_read_buffer_size(bbio,1))
1865                 {
1866                 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1867                 return(0);
1868                 }
1869         if (push)
1870                 {
1871                 if (s->wbio != bbio)
1872                         s->wbio=BIO_push(bbio,s->wbio);
1873                 }
1874         else
1875                 {
1876                 if (s->wbio == bbio)
1877                         s->wbio=BIO_pop(bbio);
1878                 }
1879         return(1);
1880         }
1881
1882 void ssl_free_wbio_buffer(SSL *s)
1883         {
1884         if (s->bbio == NULL) return;
1885
1886         if (s->bbio == s->wbio)
1887                 {
1888                 /* remove buffering */
1889                 s->wbio=BIO_pop(s->wbio);
1890 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
1891                 assert(s->wbio != NULL);
1892 #endif
1893         }
1894         BIO_free(s->bbio);
1895         s->bbio=NULL;
1896         }
1897
1898 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1899         {
1900         ctx->quiet_shutdown=mode;
1901         }
1902
1903 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1904         {
1905         return(ctx->quiet_shutdown);
1906         }
1907
1908 void SSL_set_quiet_shutdown(SSL *s,int mode)
1909         {
1910         s->quiet_shutdown=mode;
1911         }
1912
1913 int SSL_get_quiet_shutdown(SSL *s)
1914         {
1915         return(s->quiet_shutdown);
1916         }
1917
1918 void SSL_set_shutdown(SSL *s,int mode)
1919         {
1920         s->shutdown=mode;
1921         }
1922
1923 int SSL_get_shutdown(SSL *s)
1924         {
1925         return(s->shutdown);
1926         }
1927
1928 int SSL_version(SSL *s)
1929         {
1930         return(s->version);
1931         }
1932
1933 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1934         {
1935         return(ssl->ctx);
1936         }
1937
1938 #ifndef NO_STDIO
1939 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1940         {
1941         return(X509_STORE_set_default_paths(ctx->cert_store));
1942         }
1943
1944 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1945                 const char *CApath)
1946         {
1947         return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1948         }
1949 #endif
1950
1951 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1952         {
1953         ssl->info_callback=cb;
1954         }
1955
1956 void (*SSL_get_info_callback(SSL *ssl))(void)
1957         {
1958         return((void (*)())ssl->info_callback);
1959         }
1960
1961 int SSL_state(SSL *ssl)
1962         {
1963         return(ssl->state);
1964         }
1965
1966 void SSL_set_verify_result(SSL *ssl,long arg)
1967         {
1968         ssl->verify_result=arg;
1969         }
1970
1971 long SSL_get_verify_result(SSL *ssl)
1972         {
1973         return(ssl->verify_result);
1974         }
1975
1976 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1977                          CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1978         {
1979         ssl_meth_num++;
1980         return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1981                 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1982         }
1983
1984 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1985         {
1986         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1987         }
1988
1989 void *SSL_get_ex_data(SSL *s,int idx)
1990         {
1991         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1992         }
1993
1994 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1995                              CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1996         {
1997         ssl_ctx_meth_num++;
1998         return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1999                 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
2000         }
2001
2002 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2003         {
2004         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2005         }
2006
2007 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
2008         {
2009         return(CRYPTO_get_ex_data(&s->ex_data,idx));
2010         }
2011
2012 int ssl_ok(SSL *s)
2013         {
2014         return(1);
2015         }
2016
2017 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
2018         {
2019         return(ctx->cert_store);
2020         }
2021
2022 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2023         {
2024         if (ctx->cert_store != NULL)
2025                 X509_STORE_free(ctx->cert_store);
2026         ctx->cert_store=store;
2027         }
2028
2029 int SSL_want(SSL *s)
2030         {
2031         return(s->rwstate);
2032         }
2033
2034 /*!
2035  * \brief Set the callback for generating temporary RSA keys.
2036  * \param ctx the SSL context.
2037  * \param cb the callback
2038  */
2039
2040 #ifndef NO_RSA
2041 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2042                                                           int is_export,
2043                                                           int keylength))
2044     {
2045     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2046     }
2047
2048 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2049                                                   int is_export,
2050                                                   int keylength))
2051     {
2052     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2053     }
2054 #endif
2055
2056 #ifdef DOXYGEN
2057 /*!
2058  * \brief The RSA temporary key callback function.
2059  * \param ssl the SSL session.
2060  * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2061  * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2062  * of the required key in bits.
2063  * \return the temporary RSA key.
2064  * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2065  */
2066
2067 RSA *cb(SSL *ssl,int is_export,int keylength)
2068     {}
2069 #endif
2070
2071 /*!
2072  * \brief Set the callback for generating temporary DH keys.
2073  * \param ctx the SSL context.
2074  * \param dh the callback
2075  */
2076
2077 #ifndef NO_DH
2078 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2079                                                         int keylength))
2080     {
2081     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2082     }
2083
2084 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2085                                                 int keylength))
2086     {
2087     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2088     }
2089 #endif
2090
2091 #if defined(_WINDLL) && defined(WIN16)
2092 #include "../crypto/bio/bss_file.c"
2093 #endif
2094
2095 IMPLEMENT_STACK_OF(SSL_CIPHER)
2096 IMPLEMENT_STACK_OF(SSL_COMP)