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         s->read_ahead=s->ctx->read_ahead;
 123
 124         if (s->init_buf != NULL)
 125                 {
 126                 BUF_MEM_free(s->init_buf);
 127                 s->init_buf=NULL;
 128                 }
 129
 130         ssl_clear_cipher_ctx(s);
 131
 132         if (ssl_clear_bad_session(s))
 133                 {
 134                 SSL_SESSION_free(s->session);
 135                 s->session=NULL;
 136                 }
 137
 138         s->first_packet=0;
 139
 140 #if 1
 141         /* Check to see if we were changed into a different method, if
 142          * so, revert back if we are not doing session-id reuse. */
 143         if ((s->session == NULL) && (s->method != s->ctx->method))
 144                 {
 145                 s->method->ssl_free(s);
 146                 s->method=s->ctx->method;
 147                 if (!s->method->ssl_new(s))
 148                         return(0);
 149                 }
 150         else
 151 #endif
 152                 s->method->ssl_clear(s);
 153         return(1);
 154         }
 155
 156 /** Used to change an SSL_CTXs default SSL method type */
 157 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
 158         {
 159         STACK_OF(SSL_CIPHER) *sk;
 160
 161         ctx->method=meth;
 162
 163         sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
 164                 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
 165         if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
 166                 {
 167                 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
 168                 return(0);
 169                 }
 170         return(1);
 171         }
 172
 173 SSL *SSL_new(SSL_CTX *ctx)
 174         {
 175         SSL *s;
 176
 177         if (ctx == NULL)
 178                 {
 179                 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
 180                 return(NULL);
 181                 }
 182         if (ctx->method == NULL)
 183                 {
 184                 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
 185                 return(NULL);
 186                 }
 187
 188         s=(SSL *)OPENSSL_malloc(sizeof(SSL));
 189         if (s == NULL) goto err;
 190         memset(s,0,sizeof(SSL));
 191
 192         if (ctx->cert != NULL)
 193                 {
 194                 /* Earlier library versions used to copy the pointer to
 195                  * the CERT, not its contents; only when setting new
 196                  * parameters for the per-SSL copy, ssl_cert_new would be
 197                  * called (and the direct reference to the per-SSL_CTX
 198                  * settings would be lost, but those still were indirectly
 199                  * accessed for various purposes, and for that reason they
 200                  * used to be known as s->ctx->default_cert).
 201                  * Now we don't look at the SSL_CTX's CERT after having
 202                  * duplicated it once. */
 203
 204                 s->cert = ssl_cert_dup(ctx->cert);
 205                 if (s->cert == NULL)
 206                         goto err;
 207                 }
 208         else
 209                 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
 210         s->sid_ctx_length=ctx->sid_ctx_length;
 211         memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
 212         s->verify_mode=ctx->verify_mode;
 213         s->verify_depth=ctx->verify_depth;
 214         s->verify_callback=ctx->default_verify_callback;
 215         s->purpose = ctx->purpose;
 216         s->trust = ctx->trust;
 217         CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
 218         s->ctx=ctx;
 219
 220         s->verify_result=X509_V_OK;
 221
 222         s->method=ctx->method;
 223
 224         if (!s->method->ssl_new(s))
 225                 goto err;
 226
 227         s->quiet_shutdown=ctx->quiet_shutdown;
 228         s->references=1;
 229         s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
 230         s->options=ctx->options;
 231         s->mode=ctx->mode;
 232         SSL_clear(s);
 233
 234         CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
 235
 236         return(s);
 237 err:
 238         if (s != NULL)
 239                 {
 240                 if (s->cert != NULL)
 241                         ssl_cert_free(s->cert);
 242                 if (s->ctx != NULL)
 243                         SSL_CTX_free(s->ctx); /* decrement reference count */
 244                 OPENSSL_free(s);
 245                 }
 246         SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
 247         return(NULL);
 248         }
 249
 250 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
 251                                    unsigned int sid_ctx_len)
 252     {
 253     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
 254         {
 255         SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
 256         return 0;
 257         }
 258     ctx->sid_ctx_length=sid_ctx_len;
 259     memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
 260
 261     return 1;
 262     }
 263
 264 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
 265                                unsigned int sid_ctx_len)
 266     {
 267     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
 268         {
 269         SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
 270         return 0;
 271         }
 272     ssl->sid_ctx_length=sid_ctx_len;
 273     memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
 274
 275     return 1;
 276     }
 277
 278 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
 279 {
 280         if(X509_PURPOSE_get_by_id(purpose) == -1) {
 281                 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
 282                 return 0;
 283         }
 284         s->purpose = purpose;
 285         return 1;
 286 }
 287
 288 int SSL_set_purpose(SSL *s, int purpose)
 289 {
 290         if(X509_PURPOSE_get_by_id(purpose) == -1) {
 291                 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
 292                 return 0;
 293         }
 294         s->purpose = purpose;
 295         return 1;
 296 }
 297
 298 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
 299 {
 300         if(X509_TRUST_get_by_id(trust) == -1) {
 301                 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
 302                 return 0;
 303         }
 304         s->trust = trust;
 305         return 1;
 306 }
 307
 308 int SSL_set_trust(SSL *s, int trust)
 309 {
 310         if(X509_TRUST_get_by_id(trust) == -1) {
 311                 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
 312                 return 0;
 313         }
 314         s->trust = trust;
 315         return 1;
 316 }
 317
 318 void SSL_free(SSL *s)
 319         {
 320         int i;
 321
 322         if(s == NULL)
 323             return;
 324
 325         i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
 326 #ifdef REF_PRINT
 327         REF_PRINT("SSL",s);
 328 #endif
 329         if (i > 0) return;
 330 #ifdef REF_CHECK
 331         if (i < 0)
 332                 {
 333                 fprintf(stderr,"SSL_free, bad reference count\n");
 334                 abort(); /* ok */
 335                 }
 336 #endif
 337
 338         CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
 339
 340         if (s->bbio != NULL)
 341                 {
 342                 /* If the buffering BIO is in place, pop it off */
 343                 if (s->bbio == s->wbio)
 344                         {
 345                         s->wbio=BIO_pop(s->wbio);
 346                         }
 347                 BIO_free(s->bbio);
 348                 s->bbio=NULL;
 349                 }
 350         if (s->rbio != NULL)
 351                 BIO_free_all(s->rbio);
 352         if ((s->wbio != NULL) && (s->wbio != s->rbio))
 353                 BIO_free_all(s->wbio);
 354
 355         if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
 356
 357         /* add extra stuff */
 358         if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
 359         if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
 360
 361         /* Make the next call work :-) */
 362         if (s->session != NULL)
 363                 {
 364                 ssl_clear_bad_session(s);
 365                 SSL_SESSION_free(s->session);
 366                 }
 367
 368         ssl_clear_cipher_ctx(s);
 369
 370         if (s->cert != NULL) ssl_cert_free(s->cert);
 371         /* Free up if allocated */
 372
 373         if (s->ctx) SSL_CTX_free(s->ctx);
 374
 375         if (s->client_CA != NULL)
 376                 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
 377
 378         if (s->method != NULL) s->method->ssl_free(s);
 379
 380         OPENSSL_free(s);
 381         }
 382
 383 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
 384         {
 385         /* If the output buffering BIO is still in place, remove it
 386          */
 387         if (s->bbio != NULL)
 388                 {
 389                 if (s->wbio == s->bbio)
 390                         {
 391                         s->wbio=s->wbio->next_bio;
 392                         s->bbio->next_bio=NULL;
 393                         }
 394                 }
 395         if ((s->rbio != NULL) && (s->rbio != rbio))
 396                 BIO_free_all(s->rbio);
 397         if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
 398                 BIO_free_all(s->wbio);
 399         s->rbio=rbio;
 400         s->wbio=wbio;
 401         }
 402
 403 BIO *SSL_get_rbio(SSL *s)
 404         { return(s->rbio); }
 405
 406 BIO *SSL_get_wbio(SSL *s)
 407         { return(s->wbio); }
 408
 409 int SSL_get_fd(SSL *s)
 410         {
 411         int ret= -1;
 412         BIO *b,*r;
 413
 414         b=SSL_get_rbio(s);
 415         r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
 416         if (r != NULL)
 417                 BIO_get_fd(r,&ret);
 418         return(ret);
 419         }
 420
 421 #ifndef NO_SOCK
 422 int SSL_set_fd(SSL *s,int fd)
 423         {
 424         int ret=0;
 425         BIO *bio=NULL;
 426
 427         bio=BIO_new(BIO_s_socket());
 428
 429         if (bio == NULL)
 430                 {
 431                 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
 432                 goto err;
 433                 }
 434         BIO_set_fd(bio,fd,BIO_NOCLOSE);
 435         SSL_set_bio(s,bio,bio);
 436         ret=1;
 437 err:
 438         return(ret);
 439         }
 440
 441 int SSL_set_wfd(SSL *s,int fd)
 442         {
 443         int ret=0;
 444         BIO *bio=NULL;
 445
 446         if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
 447                 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
 448                 {
 449                 bio=BIO_new(BIO_s_socket());
 450
 451                 if (bio == NULL)
 452                         { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
 453                 BIO_set_fd(bio,fd,BIO_NOCLOSE);
 454                 SSL_set_bio(s,SSL_get_rbio(s),bio);
 455                 }
 456         else
 457                 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
 458         ret=1;
 459 err:
 460         return(ret);
 461         }
 462
 463 int SSL_set_rfd(SSL *s,int fd)
 464         {
 465         int ret=0;
 466         BIO *bio=NULL;
 467
 468         if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
 469                 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
 470                 {
 471                 bio=BIO_new(BIO_s_socket());
 472
 473                 if (bio == NULL)
 474                         {
 475                         SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
 476                         goto err;
 477                         }
 478                 BIO_set_fd(bio,fd,BIO_NOCLOSE);
 479                 SSL_set_bio(s,bio,SSL_get_wbio(s));
 480                 }
 481         else
 482                 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
 483         ret=1;
 484 err:
 485         return(ret);
 486         }
 487 #endif
 488
 489
 490 /* return length of latest Finished message we sent, copy to 'buf' */
 491 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
 492         {
 493         size_t ret = 0;
 494
 495         if (s->s3 != NULL)
 496                 {
 497                 ret = s->s3->tmp.finish_md_len;
 498                 if (count > ret)
 499                         count = ret;
 500                 memcpy(buf, s->s3->tmp.finish_md, count);
 501                 }
 502         return ret;
 503         }
 504
 505 /* return length of latest Finished message we expected, copy to 'buf' */
 506 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
 507         {
 508         size_t ret = 0;
 509
 510         if (s->s3 != NULL)
 511                 {
 512                 ret = s->s3->tmp.peer_finish_md_len;
 513                 if (count > ret)
 514                         count = ret;
 515                 memcpy(buf, s->s3->tmp.peer_finish_md, count);
 516                 }
 517         return ret;
 518         }
 519
 520
 521 int SSL_get_verify_mode(SSL *s)
 522         {
 523         return(s->verify_mode);
 524         }
 525
 526 int SSL_get_verify_depth(SSL *s)
 527         {
 528         return(s->verify_depth);
 529         }
 530
 531 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
 532         {
 533         return(s->verify_callback);
 534         }
 535
 536 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
 537         {
 538         return(ctx->verify_mode);
 539         }
 540
 541 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
 542         {
 543         return(ctx->verify_depth);
 544         }
 545
 546 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
 547         {
 548         return(ctx->default_verify_callback);
 549         }
 550
 551 void SSL_set_verify(SSL *s,int mode,
 552                     int (*callback)(int ok,X509_STORE_CTX *ctx))
 553         {
 554         s->verify_mode=mode;
 555         if (callback != NULL)
 556                 s->verify_callback=callback;
 557         }
 558
 559 void SSL_set_verify_depth(SSL *s,int depth)
 560         {
 561         s->verify_depth=depth;
 562         }
 563
 564 void SSL_set_read_ahead(SSL *s,int yes)
 565         {
 566         s->read_ahead=yes;
 567         }
 568
 569 int SSL_get_read_ahead(SSL *s)
 570         {
 571         return(s->read_ahead);
 572         }
 573
 574 int SSL_pending(SSL *s)
 575         {
 576         return(s->method->ssl_pending(s));
 577         }
 578
 579 X509 *SSL_get_peer_certificate(SSL *s)
 580         {
 581         X509 *r;
 582
 583         if ((s == NULL) || (s->session == NULL))
 584                 r=NULL;
 585         else
 586                 r=s->session->peer;
 587
 588         if (r == NULL) return(r);
 589
 590         CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
 591
 592         return(r);
 593         }
 594
 595 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
 596         {
 597         STACK_OF(X509) *r;
 598
 599         if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
 600                 r=NULL;
 601         else
 602                 r=s->session->sess_cert->cert_chain;
 603
 604         /* If we are a client, cert_chain includes the peer's own
 605          * certificate; if we are a server, it does not. */
 606
 607         return(r);
 608         }
 609
 610 /* Now in theory, since the calling process own 't' it should be safe to
 611  * modify.  We need to be able to read f without being hassled */
 612 void SSL_copy_session_id(SSL *t,SSL *f)
 613         {
 614         CERT *tmp;
 615
 616         /* Do we need to to SSL locking? */
 617         SSL_set_session(t,SSL_get_session(f));
 618
 619         /* what if we are setup as SSLv2 but want to talk SSLv3 or
 620          * vice-versa */
 621         if (t->method != f->method)
 622                 {
 623                 t->method->ssl_free(t); /* cleanup current */
 624                 t->method=f->method;    /* change method */
 625                 t->method->ssl_new(t);  /* setup new */
 626                 }
 627
 628         tmp=t->cert;
 629         if (f->cert != NULL)
 630                 {
 631                 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
 632                 t->cert=f->cert;
 633                 }
 634         else
 635                 t->cert=NULL;
 636         if (tmp != NULL) ssl_cert_free(tmp);
 637         SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
 638         }
 639
 640 /* Fix this so it checks all the valid key/cert options */
 641 int SSL_CTX_check_private_key(SSL_CTX *ctx)
 642         {
 643         if (    (ctx == NULL) ||
 644                 (ctx->cert == NULL) ||
 645                 (ctx->cert->key->x509 == NULL))
 646                 {
 647                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 648                 return(0);
 649                 }
 650         if      (ctx->cert->key->privatekey == NULL)
 651                 {
 652                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
 653                 return(0);
 654                 }
 655         return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
 656         }
 657
 658 /* Fix this function so that it takes an optional type parameter */
 659 int SSL_check_private_key(SSL *ssl)
 660         {
 661         if (ssl == NULL)
 662                 {
 663                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
 664                 return(0);
 665                 }
 666         if (ssl->cert == NULL)
 667                 {
 668                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 669                 return 0;
 670                 }
 671         if (ssl->cert->key->x509 == NULL)
 672                 {
 673                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 674                 return(0);
 675                 }
 676         if (ssl->cert->key->privatekey == NULL)
 677                 {
 678                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
 679                 return(0);
 680                 }
 681         return(X509_check_private_key(ssl->cert->key->x509,
 682                 ssl->cert->key->privatekey));
 683         }
 684
 685 int SSL_accept(SSL *s)
 686         {
 687         if (s->handshake_func == 0)
 688                 /* Not properly initialized yet */
 689                 SSL_set_accept_state(s);
 690
 691         return(s->method->ssl_accept(s));
 692         }
 693
 694 int SSL_connect(SSL *s)
 695         {
 696         if (s->handshake_func == 0)
 697                 /* Not properly initialized yet */
 698                 SSL_set_connect_state(s);
 699
 700         return(s->method->ssl_connect(s));
 701         }
 702
 703 long SSL_get_default_timeout(SSL *s)
 704         {
 705         return(s->method->get_timeout());
 706         }
 707
 708 int SSL_read(SSL *s,char *buf,int num)
 709         {
 710         if (s->handshake_func == 0)
 711                 {
 712                 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
 713                 return -1;
 714                 }
 715
 716         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
 717                 {
 718                 s->rwstate=SSL_NOTHING;
 719                 return(0);
 720                 }
 721         return(s->method->ssl_read(s,buf,num));
 722         }
 723
 724 int SSL_peek(SSL *s,char *buf,int num)
 725         {
 726         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
 727                 {
 728                 return(0);
 729                 }
 730         return(s->method->ssl_peek(s,buf,num));
 731         }
 732
 733 int SSL_write(SSL *s,const char *buf,int num)
 734         {
 735         if (s->handshake_func == 0)
 736                 {
 737                 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
 738                 return -1;
 739                 }
 740
 741         if (s->shutdown & SSL_SENT_SHUTDOWN)
 742                 {
 743                 s->rwstate=SSL_NOTHING;
 744                 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
 745                 return(-1);
 746                 }
 747         return(s->method->ssl_write(s,buf,num));
 748         }
 749
 750 int SSL_shutdown(SSL *s)
 751         {
 752         /* Note that this function behaves differently from what one might
 753          * expect.  Return values are 0 for no success (yet),
 754          * 1 for success; but calling it once is usually not enough,
 755          * even if blocking I/O is used (see ssl3_shutdown).
 756          */
 757
 758         if (s->handshake_func == 0)
 759                 {
 760                 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
 761                 return -1;
 762                 }
 763
 764         if ((s != NULL) && !SSL_in_init(s))
 765                 return(s->method->ssl_shutdown(s));
 766         else
 767                 return(1);
 768         }
 769
 770 int SSL_renegotiate(SSL *s)
 771         {
 772         s->new_session=1;
 773         return(s->method->ssl_renegotiate(s));
 774         }
 775
 776 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
 777         {
 778         long l;
 779
 780         switch (cmd)
 781                 {
 782         case SSL_CTRL_GET_READ_AHEAD:
 783                 return(s->read_ahead);
 784         case SSL_CTRL_SET_READ_AHEAD:
 785                 l=s->read_ahead;
 786                 s->read_ahead=larg;
 787                 return(l);
 788         case SSL_CTRL_OPTIONS:
 789                 return(s->options|=larg);
 790         case SSL_CTRL_MODE:
 791                 return(s->mode|=larg);
 792         default:
 793                 return(s->method->ssl_ctrl(s,cmd,larg,parg));
 794                 }
 795         }
 796
 797 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
 798         {
 799         switch(cmd)
 800                 {
 801         default:
 802                 return(s->method->ssl_callback_ctrl(s,cmd,fp));
 803                 }
 804         }
 805
 806 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
 807         {
 808         return ctx->sessions;
 809         }
 810
 811 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
 812         {
 813         long l;
 814
 815         switch (cmd)
 816                 {
 817         case SSL_CTRL_GET_READ_AHEAD:
 818                 return(ctx->read_ahead);
 819         case SSL_CTRL_SET_READ_AHEAD:
 820                 l=ctx->read_ahead;
 821                 ctx->read_ahead=larg;
 822                 return(l);
 823
 824         case SSL_CTRL_SET_SESS_CACHE_SIZE:
 825                 l=ctx->session_cache_size;
 826                 ctx->session_cache_size=larg;
 827                 return(l);
 828         case SSL_CTRL_GET_SESS_CACHE_SIZE:
 829                 return(ctx->session_cache_size);
 830         case SSL_CTRL_SET_SESS_CACHE_MODE:
 831                 l=ctx->session_cache_mode;
 832                 ctx->session_cache_mode=larg;
 833                 return(l);
 834         case SSL_CTRL_GET_SESS_CACHE_MODE:
 835                 return(ctx->session_cache_mode);
 836
 837         case SSL_CTRL_SESS_NUMBER:
 838                 return(ctx->sessions->num_items);
 839         case SSL_CTRL_SESS_CONNECT:
 840                 return(ctx->stats.sess_connect);
 841         case SSL_CTRL_SESS_CONNECT_GOOD:
 842                 return(ctx->stats.sess_connect_good);
 843         case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
 844                 return(ctx->stats.sess_connect_renegotiate);
 845         case SSL_CTRL_SESS_ACCEPT:
 846                 return(ctx->stats.sess_accept);
 847         case SSL_CTRL_SESS_ACCEPT_GOOD:
 848                 return(ctx->stats.sess_accept_good);
 849         case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
 850                 return(ctx->stats.sess_accept_renegotiate);
 851         case SSL_CTRL_SESS_HIT:
 852                 return(ctx->stats.sess_hit);
 853         case SSL_CTRL_SESS_CB_HIT:
 854                 return(ctx->stats.sess_cb_hit);
 855         case SSL_CTRL_SESS_MISSES:
 856                 return(ctx->stats.sess_miss);
 857         case SSL_CTRL_SESS_TIMEOUTS:
 858                 return(ctx->stats.sess_timeout);
 859         case SSL_CTRL_SESS_CACHE_FULL:
 860                 return(ctx->stats.sess_cache_full);
 861         case SSL_CTRL_OPTIONS:
 862                 return(ctx->options|=larg);
 863         case SSL_CTRL_MODE:
 864                 return(ctx->mode|=larg);
 865         default:
 866                 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
 867                 }
 868         }
 869
 870 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
 871         {
 872         switch(cmd)
 873                 {
 874         default:
 875                 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
 876                 }
 877         }
 878
 879 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
 880         {
 881         long l;
 882
 883         l=a->id-b->id;
 884         if (l == 0L)
 885                 return(0);
 886         else
 887                 return((l > 0)?1:-1);
 888         }
 889
 890 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
 891                         const SSL_CIPHER * const *bp)
 892         {
 893         long l;
 894
 895         l=(*ap)->id-(*bp)->id;
 896         if (l == 0L)
 897                 return(0);
 898         else
 899                 return((l > 0)?1:-1);
 900         }
 901
 902 /** return a STACK of the ciphers available for the SSL and in order of
 903  * preference */
 904 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
 905         {
 906         if ((s != NULL) && (s->cipher_list != NULL))
 907                 {
 908                 return(s->cipher_list);
 909                 }
 910         else if ((s->ctx != NULL) &&
 911                 (s->ctx->cipher_list != NULL))
 912                 {
 913                 return(s->ctx->cipher_list);
 914                 }
 915         return(NULL);
 916         }
 917
 918 /** return a STACK of the ciphers available for the SSL and in order of
 919  * algorithm id */
 920 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
 921         {
 922         if ((s != NULL) && (s->cipher_list_by_id != NULL))
 923                 {
 924                 return(s->cipher_list_by_id);
 925                 }
 926         else if ((s != NULL) && (s->ctx != NULL) &&
 927                 (s->ctx->cipher_list_by_id != NULL))
 928                 {
 929                 return(s->ctx->cipher_list_by_id);
 930                 }
 931         return(NULL);
 932         }
 933
 934 /** The old interface to get the same thing as SSL_get_ciphers() */
 935 const char *SSL_get_cipher_list(SSL *s,int n)
 936         {
 937         SSL_CIPHER *c;
 938         STACK_OF(SSL_CIPHER) *sk;
 939
 940         if (s == NULL) return(NULL);
 941         sk=SSL_get_ciphers(s);
 942         if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
 943                 return(NULL);
 944         c=sk_SSL_CIPHER_value(sk,n);
 945         if (c == NULL) return(NULL);
 946         return(c->name);
 947         }
 948
 949 /** specify the ciphers to be used by default by the SSL_CTX */
 950 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
 951         {
 952         STACK_OF(SSL_CIPHER) *sk;
 953
 954         sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
 955                 &ctx->cipher_list_by_id,str);
 956 /* XXXX */
 957         return((sk == NULL)?0:1);
 958         }
 959
 960 /** specify the ciphers to be used by the SSL */
 961 int SSL_set_cipher_list(SSL *s,const char *str)
 962         {
 963         STACK_OF(SSL_CIPHER) *sk;
 964
 965         sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
 966                 &s->cipher_list_by_id,str);
 967 /* XXXX */
 968         return((sk == NULL)?0:1);
 969         }
 970
 971 /* works well for SSLv2, not so good for SSLv3 */
 972 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
 973         {
 974         char *p;
 975         const char *cp;
 976         STACK_OF(SSL_CIPHER) *sk;
 977         SSL_CIPHER *c;
 978         int i;
 979
 980         if ((s->session == NULL) || (s->session->ciphers == NULL) ||
 981                 (len < 2))
 982                 return(NULL);
 983
 984         p=buf;
 985         sk=s->session->ciphers;
 986         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
 987                 {
 988                 /* Decrement for either the ':' or a '\0' */
 989                 len--;
 990                 c=sk_SSL_CIPHER_value(sk,i);
 991                 for (cp=c->name; *cp; )
 992                         {
 993                         if (len-- == 0)
 994                                 {
 995                                 *p='\0';
 996                                 return(buf);
 997                                 }
 998                         else
 999                                 *(p++)= *(cp++);
1000                         }
1001                 *(p++)=':';
1002                 }
1003         p[-1]='\0';
1004         return(buf);
1005         }
1006
1007 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1008         {
1009         int i,j=0;
1010         SSL_CIPHER *c;
1011         unsigned char *q;
1012
1013         if (sk == NULL) return(0);
1014         q=p;
1015
1016         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1017                 {
1018                 c=sk_SSL_CIPHER_value(sk,i);
1019                 j=ssl_put_cipher_by_char(s,c,p);
1020                 p+=j;
1021                 }
1022         return(p-q);
1023         }
1024
1025 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1026                                                STACK_OF(SSL_CIPHER) **skp)
1027         {
1028         SSL_CIPHER *c;
1029         STACK_OF(SSL_CIPHER) *sk;
1030         int i,n;
1031
1032         n=ssl_put_cipher_by_char(s,NULL,NULL);
1033         if ((num%n) != 0)
1034                 {
1035                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1036                 return(NULL);
1037                 }
1038         if ((skp == NULL) || (*skp == NULL))
1039                 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
1040         else
1041                 {
1042                 sk= *skp;
1043                 sk_SSL_CIPHER_zero(sk);
1044                 }
1045
1046         for (i=0; i<num; i+=n)
1047                 {
1048                 c=ssl_get_cipher_by_char(s,p);
1049                 p+=n;
1050                 if (c != NULL)
1051                         {
1052                         if (!sk_SSL_CIPHER_push(sk,c))
1053                                 {
1054                                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1055                                 goto err;
1056                                 }
1057                         }
1058                 }
1059
1060         if (skp != NULL)
1061                 *skp=sk;
1062         return(sk);
1063 err:
1064         if ((skp == NULL) || (*skp == NULL))
1065                 sk_SSL_CIPHER_free(sk);
1066         return(NULL);
1067         }
1068
1069 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1070         {
1071         unsigned long l;
1072
1073         l=(unsigned long)
1074                 ((unsigned int) a->session_id[0]     )|
1075                 ((unsigned int) a->session_id[1]<< 8L)|
1076                 ((unsigned long)a->session_id[2]<<16L)|
1077                 ((unsigned long)a->session_id[3]<<24L);
1078         return(l);
1079         }
1080
1081 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1082         {
1083         if (a->ssl_version != b->ssl_version)
1084                 return(1);
1085         if (a->session_id_length != b->session_id_length)
1086                 return(1);
1087         return(memcmp(a->session_id,b->session_id,a->session_id_length));
1088         }
1089
1090 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1091         {
1092         SSL_CTX *ret=NULL;
1093
1094         if (meth == NULL)
1095                 {
1096                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1097                 return(NULL);
1098                 }
1099
1100         if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1101                 {
1102                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1103                 goto err;
1104                 }
1105         ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1106         if (ret == NULL)
1107                 goto err;
1108
1109         memset(ret,0,sizeof(SSL_CTX));
1110
1111         ret->method=meth;
1112
1113         ret->cert_store=NULL;
1114         ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1115         ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1116         ret->session_cache_head=NULL;
1117         ret->session_cache_tail=NULL;
1118
1119         /* We take the system default */
1120         ret->session_timeout=meth->get_timeout();
1121
1122         ret->new_session_cb=NULL;
1123         ret->remove_session_cb=NULL;
1124         ret->get_session_cb=NULL;
1125
1126         memset((char *)&ret->stats,0,sizeof(ret->stats));
1127
1128         ret->references=1;
1129         ret->quiet_shutdown=0;
1130
1131 /*      ret->cipher=NULL;*/
1132 /*      ret->s2->challenge=NULL;
1133         ret->master_key=NULL;
1134         ret->key_arg=NULL;
1135         ret->s2->conn_id=NULL; */
1136
1137         ret->info_callback=NULL;
1138
1139         ret->app_verify_callback=NULL;
1140         ret->app_verify_arg=NULL;
1141
1142         ret->read_ahead=0;
1143         ret->verify_mode=SSL_VERIFY_NONE;
1144         ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1145         ret->default_verify_callback=NULL;
1146         if ((ret->cert=ssl_cert_new()) == NULL)
1147                 goto err;
1148
1149         ret->default_passwd_callback=NULL;
1150         ret->default_passwd_callback_userdata=NULL;
1151         ret->client_cert_cb=NULL;
1152
1153         ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1154         if (ret->sessions == NULL) goto err;
1155         ret->cert_store=X509_STORE_new();
1156         if (ret->cert_store == NULL) goto err;
1157
1158         ssl_create_cipher_list(ret->method,
1159                 &ret->cipher_list,&ret->cipher_list_by_id,
1160                 SSL_DEFAULT_CIPHER_LIST);
1161         if (ret->cipher_list == NULL
1162             || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1163                 {
1164                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1165                 goto err2;
1166                 }
1167
1168         if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1169                 {
1170                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1171                 goto err2;
1172                 }
1173         if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1174                 {
1175                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1176                 goto err2;
1177                 }
1178         if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1179                 {
1180                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1181                 goto err2;
1182                 }
1183
1184         if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1185                 goto err;
1186
1187         CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1188
1189         ret->extra_certs=NULL;
1190         ret->comp_methods=SSL_COMP_get_compression_methods();
1191
1192         return(ret);
1193 err:
1194         SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1195 err2:
1196         if (ret != NULL) SSL_CTX_free(ret);
1197         return(NULL);
1198         }
1199
1200 static void SSL_COMP_free(SSL_COMP *comp)
1201     { OPENSSL_free(comp); }
1202
1203 void SSL_CTX_free(SSL_CTX *a)
1204         {
1205         int i;
1206
1207         if (a == NULL) return;
1208
1209         i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1210 #ifdef REF_PRINT
1211         REF_PRINT("SSL_CTX",a);
1212 #endif
1213         if (i > 0) return;
1214 #ifdef REF_CHECK
1215         if (i < 0)
1216                 {
1217                 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1218                 abort(); /* ok */
1219                 }
1220 #endif
1221         CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1222
1223         if (a->sessions != NULL)
1224                 {
1225                 SSL_CTX_flush_sessions(a,0);
1226                 lh_free(a->sessions);
1227                 }
1228         if (a->cert_store != NULL)
1229                 X509_STORE_free(a->cert_store);
1230         if (a->cipher_list != NULL)
1231                 sk_SSL_CIPHER_free(a->cipher_list);
1232         if (a->cipher_list_by_id != NULL)
1233                 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1234         if (a->cert != NULL)
1235                 ssl_cert_free(a->cert);
1236         if (a->client_CA != NULL)
1237                 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1238         if (a->extra_certs != NULL)
1239                 sk_X509_pop_free(a->extra_certs,X509_free);
1240         if (a->comp_methods != NULL)
1241                 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1242         OPENSSL_free(a);
1243         }
1244
1245 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1246         {
1247         ctx->default_passwd_callback=cb;
1248         }
1249
1250 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1251         {
1252         ctx->default_passwd_callback_userdata=u;
1253         }
1254
1255 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1256         {
1257         /* now
1258          *     int (*cb)(X509_STORE_CTX *),
1259          * but should be
1260          *     int (*cb)(X509_STORE_CTX *, void *arg)
1261          */
1262         ctx->app_verify_callback=cb;
1263         ctx->app_verify_arg=arg; /* never used */
1264         }
1265
1266 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1267         {
1268         ctx->verify_mode=mode;
1269         ctx->default_verify_callback=cb;
1270         /* This needs cleaning up EAY EAY EAY */
1271         X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1272         }
1273
1274 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1275         {
1276         ctx->verify_depth=depth;
1277         }
1278
1279 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1280         {
1281         CERT_PKEY *cpk;
1282         int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1283         int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1284         int rsa_tmp_export,dh_tmp_export,kl;
1285         unsigned long mask,emask;
1286
1287         if (c == NULL) return;
1288
1289         kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1290
1291 #ifndef NO_RSA
1292         rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1293         rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1294                 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1295 #else
1296         rsa_tmp=rsa_tmp_export=0;
1297 #endif
1298 #ifndef NO_DH
1299         dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1300         dh_tmp_export=(c->dh_tmp_cb != NULL ||
1301                 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1302 #else
1303         dh_tmp=dh_tmp_export=0;
1304 #endif
1305
1306         cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1307         rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1308         rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1309         cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1310         rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1311         cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1312         dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1313         cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1314         dh_rsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1315         dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1316         cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1317 /* FIX THIS EAY EAY EAY */
1318         dh_dsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1319         dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1320
1321         mask=0;
1322         emask=0;
1323
1324 #ifdef CIPHER_DEBUG
1325         printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1326                 rsa_tmp,rsa_tmp_export,dh_tmp,
1327                 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1328 #endif
1329
1330         if (rsa_enc || (rsa_tmp && rsa_sign))
1331                 mask|=SSL_kRSA;
1332         if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1333                 emask|=SSL_kRSA;
1334
1335 #if 0
1336         /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1337         if (    (dh_tmp || dh_rsa || dh_dsa) &&
1338                 (rsa_enc || rsa_sign || dsa_sign))
1339                 mask|=SSL_kEDH;
1340         if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1341                 (rsa_enc || rsa_sign || dsa_sign))
1342                 emask|=SSL_kEDH;
1343 #endif
1344
1345         if (dh_tmp_export)
1346                 emask|=SSL_kEDH;
1347
1348         if (dh_tmp)
1349                 mask|=SSL_kEDH;
1350
1351         if (dh_rsa) mask|=SSL_kDHr;
1352         if (dh_rsa_export) emask|=SSL_kDHr;
1353
1354         if (dh_dsa) mask|=SSL_kDHd;
1355         if (dh_dsa_export) emask|=SSL_kDHd;
1356
1357         if (rsa_enc || rsa_sign)
1358                 {
1359                 mask|=SSL_aRSA;
1360                 emask|=SSL_aRSA;
1361                 }
1362
1363         if (dsa_sign)
1364                 {
1365                 mask|=SSL_aDSS;
1366                 emask|=SSL_aDSS;
1367                 }
1368
1369         mask|=SSL_aNULL;
1370         emask|=SSL_aNULL;
1371
1372         c->mask=mask;
1373         c->export_mask=emask;
1374         c->valid=1;
1375         }
1376
1377 /* THIS NEEDS CLEANING UP */
1378 X509 *ssl_get_server_send_cert(SSL *s)
1379         {
1380         unsigned long alg,mask,kalg;
1381         CERT *c;
1382         int i,is_export;
1383
1384         c=s->cert;
1385         ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1386         alg=s->s3->tmp.new_cipher->algorithms;
1387         is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1388         mask=is_export?c->export_mask:c->mask;
1389         kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1390
1391         if      (kalg & SSL_kDHr)
1392                 i=SSL_PKEY_DH_RSA;
1393         else if (kalg & SSL_kDHd)
1394                 i=SSL_PKEY_DH_DSA;
1395         else if (kalg & SSL_aDSS)
1396                 i=SSL_PKEY_DSA_SIGN;
1397         else if (kalg & SSL_aRSA)
1398                 {
1399                 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1400                         i=SSL_PKEY_RSA_SIGN;
1401                 else
1402                         i=SSL_PKEY_RSA_ENC;
1403                 }
1404         else /* if (kalg & SSL_aNULL) */
1405                 {
1406                 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1407                 return(NULL);
1408                 }
1409         if (c->pkeys[i].x509 == NULL) return(NULL);
1410         return(c->pkeys[i].x509);
1411         }
1412
1413 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1414         {
1415         unsigned long alg;
1416         CERT *c;
1417
1418         alg=cipher->algorithms;
1419         c=s->cert;
1420
1421         if ((alg & SSL_aDSS) &&
1422                 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1423                 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1424         else if (alg & SSL_aRSA)
1425                 {
1426                 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1427                         return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1428                 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1429                         return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1430                 else
1431                         return(NULL);
1432                 }
1433         else /* if (alg & SSL_aNULL) */
1434                 {
1435                 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1436                 return(NULL);
1437                 }
1438         }
1439
1440 void ssl_update_cache(SSL *s,int mode)
1441         {
1442         int i;
1443
1444         /* If the session_id_length is 0, we are not supposed to cache it,
1445          * and it would be rather hard to do anyway :-) */
1446         if (s->session->session_id_length == 0) return;
1447
1448         if ((s->ctx->session_cache_mode & mode)
1449                 && (!s->hit)
1450                 && SSL_CTX_add_session(s->ctx,s->session)
1451                 && (s->ctx->new_session_cb != NULL))
1452                 {
1453                 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1454                 if (!s->ctx->new_session_cb(s,s->session))
1455                         SSL_SESSION_free(s->session);
1456                 }
1457
1458         /* auto flush every 255 connections */
1459         i=s->ctx->session_cache_mode;
1460         if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1461                 ((i & mode) == mode))
1462                 {
1463                 if (  (((mode & SSL_SESS_CACHE_CLIENT)
1464                         ?s->ctx->stats.sess_connect_good
1465                         :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1466                         {
1467                         SSL_CTX_flush_sessions(s->ctx,time(NULL));
1468                         }
1469                 }
1470         }
1471
1472 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1473         {
1474         return(s->method);
1475         }
1476
1477 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1478         {
1479         int conn= -1;
1480         int ret=1;
1481
1482         if (s->method != meth)
1483                 {
1484                 if (s->handshake_func != NULL)
1485                         conn=(s->handshake_func == s->method->ssl_connect);
1486
1487                 if (s->method->version == meth->version)
1488                         s->method=meth;
1489                 else
1490                         {
1491                         s->method->ssl_free(s);
1492                         s->method=meth;
1493                         ret=s->method->ssl_new(s);
1494                         }
1495
1496                 if (conn == 1)
1497                         s->handshake_func=meth->ssl_connect;
1498                 else if (conn == 0)
1499                         s->handshake_func=meth->ssl_accept;
1500                 }
1501         return(ret);
1502         }
1503
1504 int SSL_get_error(SSL *s,int i)
1505         {
1506         int reason;
1507         unsigned long l;
1508         BIO *bio;
1509
1510         if (i > 0) return(SSL_ERROR_NONE);
1511
1512         /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1513          * etc, where we do encode the error */
1514         if ((l=ERR_peek_error()) != 0)
1515                 {
1516                 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1517                         return(SSL_ERROR_SYSCALL);
1518                 else
1519                         return(SSL_ERROR_SSL);
1520                 }
1521
1522         if ((i < 0) && SSL_want_read(s))
1523                 {
1524                 bio=SSL_get_rbio(s);
1525                 if (BIO_should_read(bio))
1526                         return(SSL_ERROR_WANT_READ);
1527                 else if (BIO_should_write(bio))
1528                         /* This one doesn't make too much sense ... We never try
1529                          * to write to the rbio, and an application program where
1530                          * rbio and wbio are separate couldn't even know what it
1531                          * should wait for.
1532                          * However if we ever set s->rwstate incorrectly
1533                          * (so that we have SSL_want_read(s) instead of
1534                          * SSL_want_write(s)) and rbio and wbio *are* the same,
1535                          * this test works around that bug; so it might be safer
1536                          * to keep it. */
1537                         return(SSL_ERROR_WANT_WRITE);
1538                 else if (BIO_should_io_special(bio))
1539                         {
1540                         reason=BIO_get_retry_reason(bio);
1541                         if (reason == BIO_RR_CONNECT)
1542                                 return(SSL_ERROR_WANT_CONNECT);
1543                         else
1544                                 return(SSL_ERROR_SYSCALL); /* unknown */
1545                         }
1546                 }
1547
1548         if ((i < 0) && SSL_want_write(s))
1549                 {
1550                 bio=SSL_get_wbio(s);
1551                 if (BIO_should_write(bio))
1552                         return(SSL_ERROR_WANT_WRITE);
1553                 else if (BIO_should_read(bio))
1554                         /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1555                         return(SSL_ERROR_WANT_READ);
1556                 else if (BIO_should_io_special(bio))
1557                         {
1558                         reason=BIO_get_retry_reason(bio);
1559                         if (reason == BIO_RR_CONNECT)
1560                                 return(SSL_ERROR_WANT_CONNECT);
1561                         else
1562                                 return(SSL_ERROR_SYSCALL);
1563                         }
1564                 }
1565         if ((i < 0) && SSL_want_x509_lookup(s))
1566                 {
1567                 return(SSL_ERROR_WANT_X509_LOOKUP);
1568                 }
1569
1570         if (i == 0)
1571                 {
1572                 if (s->version == SSL2_VERSION)
1573                         {
1574                         /* assume it is the socket being closed */
1575                         return(SSL_ERROR_ZERO_RETURN);
1576                         }
1577                 else
1578                         {
1579                         if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1580                                 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1581                                 return(SSL_ERROR_ZERO_RETURN);
1582                         }
1583                 }
1584         return(SSL_ERROR_SYSCALL);
1585         }
1586
1587 int SSL_do_handshake(SSL *s)
1588         {
1589         int ret=1;
1590
1591         if (s->handshake_func == NULL)
1592                 {
1593                 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1594                 return(-1);
1595                 }
1596
1597         s->method->ssl_renegotiate_check(s);
1598
1599         if (SSL_in_init(s) || SSL_in_before(s))
1600                 {
1601                 ret=s->handshake_func(s);
1602                 }
1603         return(ret);
1604         }
1605
1606 /* For the next 2 functions, SSL_clear() sets shutdown and so
1607  * one of these calls will reset it */
1608 void SSL_set_accept_state(SSL *s)
1609         {
1610         s->server=1;
1611         s->shutdown=0;
1612         s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1613         s->handshake_func=s->method->ssl_accept;
1614         /* clear the current cipher */
1615         ssl_clear_cipher_ctx(s);
1616         }
1617
1618 void SSL_set_connect_state(SSL *s)
1619         {
1620         s->server=0;
1621         s->shutdown=0;
1622         s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1623         s->handshake_func=s->method->ssl_connect;
1624         /* clear the current cipher */
1625         ssl_clear_cipher_ctx(s);
1626         }
1627
1628 int ssl_undefined_function(SSL *s)
1629         {
1630         SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1631         return(0);
1632         }
1633
1634 SSL_METHOD *ssl_bad_method(int ver)
1635         {
1636         SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1637         return(NULL);
1638         }
1639
1640 const char *SSL_get_version(SSL *s)
1641         {
1642         if (s->version == TLS1_VERSION)
1643                 return("TLSv1");
1644         else if (s->version == SSL3_VERSION)
1645                 return("SSLv3");
1646         else if (s->version == SSL2_VERSION)
1647                 return("SSLv2");
1648         else
1649                 return("unknown");
1650         }
1651
1652 SSL *SSL_dup(SSL *s)
1653         {
1654         STACK_OF(X509_NAME) *sk;
1655         X509_NAME *xn;
1656         SSL *ret;
1657         int i;
1658
1659         if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1660             return(NULL);
1661
1662         if (s->session != NULL)
1663                 {
1664                 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1665                 SSL_copy_session_id(ret,s);
1666                 }
1667         else
1668                 {
1669                 /* No session has been established yet, so we have to expect
1670                  * that s->cert or ret->cert will be changed later --
1671                  * they should not both point to the same object,
1672                  * and thus we can't use SSL_copy_session_id. */
1673
1674                 ret->method = s->method;
1675                 ret->method->ssl_new(ret);
1676
1677                 if (s->cert != NULL)
1678                         {
1679                         ret->cert = ssl_cert_dup(s->cert);
1680                         if (ret->cert == NULL)
1681                                 goto err;
1682                         }
1683
1684                 SSL_set_session_id_context(ret,
1685                         s->sid_ctx, s->sid_ctx_length);
1686                 }
1687
1688         SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1689         SSL_set_verify(ret,SSL_get_verify_mode(s),
1690                 SSL_get_verify_callback(s));
1691         SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1692
1693         SSL_set_info_callback(ret,SSL_get_info_callback(s));
1694
1695         ret->debug=s->debug;
1696         ret->options=s->options;
1697
1698         /* copy app data, a little dangerous perhaps */
1699         if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1700                 goto err;
1701
1702         /* setup rbio, and wbio */
1703         if (s->rbio != NULL)
1704                 {
1705                 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1706                         goto err;
1707                 }
1708         if (s->wbio != NULL)
1709                 {
1710                 if (s->wbio != s->rbio)
1711                         {
1712                         if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1713                                 goto err;
1714                         }
1715                 else
1716                         ret->wbio=ret->rbio;
1717                 }
1718
1719         /* dup the cipher_list and cipher_list_by_id stacks */
1720         if (s->cipher_list != NULL)
1721                 {
1722                 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1723                         goto err;
1724                 }
1725         if (s->cipher_list_by_id != NULL)
1726                 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1727                         == NULL)
1728                         goto err;
1729
1730         /* Dup the client_CA list */
1731         if (s->client_CA != NULL)
1732                 {
1733                 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1734                 ret->client_CA=sk;
1735                 for (i=0; i<sk_X509_NAME_num(sk); i++)
1736                         {
1737                         xn=sk_X509_NAME_value(sk,i);
1738                         if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1739                                 {
1740                                 X509_NAME_free(xn);
1741                                 goto err;
1742                                 }
1743                         }
1744                 }
1745
1746         ret->shutdown=s->shutdown;
1747         ret->state=s->state;
1748         ret->handshake_func=s->handshake_func;
1749         ret->server=s->server;
1750
1751         if (0)
1752                 {
1753 err:
1754                 if (ret != NULL) SSL_free(ret);
1755                 ret=NULL;
1756                 }
1757         return(ret);
1758         }
1759
1760 void ssl_clear_cipher_ctx(SSL *s)
1761         {
1762         if (s->enc_read_ctx != NULL)
1763                 {
1764                 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1765                 OPENSSL_free(s->enc_read_ctx);
1766                 s->enc_read_ctx=NULL;
1767                 }
1768         if (s->enc_write_ctx != NULL)
1769                 {
1770                 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1771                 OPENSSL_free(s->enc_write_ctx);
1772                 s->enc_write_ctx=NULL;
1773                 }
1774         if (s->expand != NULL)
1775                 {
1776                 COMP_CTX_free(s->expand);
1777                 s->expand=NULL;
1778                 }
1779         if (s->compress != NULL)
1780                 {
1781                 COMP_CTX_free(s->compress);
1782                 s->compress=NULL;
1783                 }
1784         }
1785
1786 /* Fix this function so that it takes an optional type parameter */
1787 X509 *SSL_get_certificate(SSL *s)
1788         {
1789         if (s->cert != NULL)
1790                 return(s->cert->key->x509);
1791         else
1792                 return(NULL);
1793         }
1794
1795 /* Fix this function so that it takes an optional type parameter */
1796 EVP_PKEY *SSL_get_privatekey(SSL *s)
1797         {
1798         if (s->cert != NULL)
1799                 return(s->cert->key->privatekey);
1800         else
1801                 return(NULL);
1802         }
1803
1804 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1805         {
1806         if ((s->session != NULL) && (s->session->cipher != NULL))
1807                 return(s->session->cipher);
1808         return(NULL);
1809         }
1810
1811 int ssl_init_wbio_buffer(SSL *s,int push)
1812         {
1813         BIO *bbio;
1814
1815         if (s->bbio == NULL)
1816                 {
1817                 bbio=BIO_new(BIO_f_buffer());
1818                 if (bbio == NULL) return(0);
1819                 s->bbio=bbio;
1820                 }
1821         else
1822                 {
1823                 bbio=s->bbio;
1824                 if (s->bbio == s->wbio)
1825                         s->wbio=BIO_pop(s->wbio);
1826                 }
1827         (void)BIO_reset(bbio);
1828 /*      if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1829         if (!BIO_set_read_buffer_size(bbio,1))
1830                 {
1831                 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1832                 return(0);
1833                 }
1834         if (push)
1835                 {
1836                 if (s->wbio != bbio)
1837                         s->wbio=BIO_push(bbio,s->wbio);
1838                 }
1839         else
1840                 {
1841                 if (s->wbio == bbio)
1842                         s->wbio=BIO_pop(bbio);
1843                 }
1844         return(1);
1845         }
1846
1847 void ssl_free_wbio_buffer(SSL *s)
1848         {
1849         BIO *under;
1850
1851         if (s->bbio == NULL) return;
1852
1853         if (s->bbio == s->wbio)
1854                 {
1855                 /* remove buffering */
1856                 s->wbio=BIO_pop(s->wbio);
1857 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
1858                 assert(s->wbio != NULL);
1859 #endif
1860         }
1861         BIO_free(s->bbio);
1862         s->bbio=NULL;
1863         }
1864
1865 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1866         {
1867         ctx->quiet_shutdown=mode;
1868         }
1869
1870 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1871         {
1872         return(ctx->quiet_shutdown);
1873         }
1874
1875 void SSL_set_quiet_shutdown(SSL *s,int mode)
1876         {
1877         s->quiet_shutdown=mode;
1878         }
1879
1880 int SSL_get_quiet_shutdown(SSL *s)
1881         {
1882         return(s->quiet_shutdown);
1883         }
1884
1885 void SSL_set_shutdown(SSL *s,int mode)
1886         {
1887         s->shutdown=mode;
1888         }
1889
1890 int SSL_get_shutdown(SSL *s)
1891         {
1892         return(s->shutdown);
1893         }
1894
1895 int SSL_version(SSL *s)
1896         {
1897         return(s->version);
1898         }
1899
1900 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1901         {
1902         return(ssl->ctx);
1903         }
1904
1905 #ifndef NO_STDIO
1906 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1907         {
1908         return(X509_STORE_set_default_paths(ctx->cert_store));
1909         }
1910
1911 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1912                 const char *CApath)
1913         {
1914         return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1915         }
1916 #endif
1917
1918 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1919         {
1920         ssl->info_callback=cb;
1921         }
1922
1923 void (*SSL_get_info_callback(SSL *ssl))(void)
1924         {
1925         return((void (*)())ssl->info_callback);
1926         }
1927
1928 int SSL_state(SSL *ssl)
1929         {
1930         return(ssl->state);
1931         }
1932
1933 void SSL_set_verify_result(SSL *ssl,long arg)
1934         {
1935         ssl->verify_result=arg;
1936         }
1937
1938 long SSL_get_verify_result(SSL *ssl)
1939         {
1940         return(ssl->verify_result);
1941         }
1942
1943 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1944                          CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1945         {
1946         ssl_meth_num++;
1947         return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1948                 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1949         }
1950
1951 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1952         {
1953         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1954         }
1955
1956 void *SSL_get_ex_data(SSL *s,int idx)
1957         {
1958         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1959         }
1960
1961 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1962                              CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1963         {
1964         ssl_ctx_meth_num++;
1965         return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1966                 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1967         }
1968
1969 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1970         {
1971         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1972         }
1973
1974 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1975         {
1976         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1977         }
1978
1979 int ssl_ok(SSL *s)
1980         {
1981         return(1);
1982         }
1983
1984 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1985         {
1986         return(ctx->cert_store);
1987         }
1988
1989 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1990         {
1991         if (ctx->cert_store != NULL)
1992                 X509_STORE_free(ctx->cert_store);
1993         ctx->cert_store=store;
1994         }
1995
1996 int SSL_want(SSL *s)
1997         {
1998         return(s->rwstate);
1999         }
2000
2001 /*!
2002  * \brief Set the callback for generating temporary RSA keys.
2003  * \param ctx the SSL context.
2004  * \param cb the callback
2005  */
2006
2007 #ifndef NO_RSA
2008 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2009                                                           int is_export,
2010                                                           int keylength))
2011     {
2012     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2013     }
2014
2015 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2016                                                   int is_export,
2017                                                   int keylength))
2018     {
2019     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2020     }
2021 #endif
2022
2023 #ifdef DOXYGEN
2024 /*!
2025  * \brief The RSA temporary key callback function.
2026  * \param ssl the SSL session.
2027  * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2028  * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2029  * of the required key in bits.
2030  * \return the temporary RSA key.
2031  * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2032  */
2033
2034 RSA *cb(SSL *ssl,int is_export,int keylength)
2035     {}
2036 #endif
2037
2038 /*!
2039  * \brief Set the callback for generating temporary DH keys.
2040  * \param ctx the SSL context.
2041  * \param dh the callback
2042  */
2043
2044 #ifndef NO_DH
2045 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2046                                                         int keylength))
2047     {
2048     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2049     }
2050
2051 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2052                                                 int keylength))
2053     {
2054     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2055     }
2056 #endif
2057
2058 #if defined(_WINDLL) && defined(WIN16)
2059 #include "../crypto/bio/bss_file.c"
2060 #endif
2061
2062 IMPLEMENT_STACK_OF(SSL_CIPHER)
2063 IMPLEMENT_STACK_OF(SSL_COMP)