ssl/ssl_lib.c

   1 /*! \file ssl/ssl_lib.c
   2  *  \brief Version independent SSL functions.
   3  */
   4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   5  * All rights reserved.
   6  *
   7  * This package is an SSL implementation written
   8  * by Eric Young (eay@cryptsoft.com).
   9  * The implementation was written so as to conform with Netscapes SSL.
  10  *
  11  * This library is free for commercial and non-commercial use as long as
  12  * the following conditions are aheared to.  The following conditions
  13  * apply to all code found in this distribution, be it the RC4, RSA,
  14  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  15  * included with this distribution is covered by the same copyright terms
  16  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  17  *
  18  * Copyright remains Eric Young's, and as such any Copyright notices in
  19  * the code are not to be removed.
  20  * If this package is used in a product, Eric Young should be given attribution
  21  * as the author of the parts of the library used.
  22  * This can be in the form of a textual message at program startup or
  23  * in documentation (online or textual) provided with the package.
  24  *
  25  * Redistribution and use in source and binary forms, with or without
  26  * modification, are permitted provided that the following conditions
  27  * are met:
  28  * 1. Redistributions of source code must retain the copyright
  29  *    notice, this list of conditions and the following disclaimer.
  30  * 2. Redistributions in binary form must reproduce the above copyright
  31  *    notice, this list of conditions and the following disclaimer in the
  32  *    documentation and/or other materials provided with the distribution.
  33  * 3. All advertising materials mentioning features or use of this software
  34  *    must display the following acknowledgement:
  35  *    "This product includes cryptographic software written by
  36  *     Eric Young (eay@cryptsoft.com)"
  37  *    The word 'cryptographic' can be left out if the rouines from the library
  38  *    being used are not cryptographic related :-).
  39  * 4. If you include any Windows specific code (or a derivative thereof) from
  40  *    the apps directory (application code) you must include an acknowledgement:
  41  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  * The licence and distribution terms for any publically available version or
  56  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  57  * copied and put under another distribution licence
  58  * [including the GNU Public Licence.]
  59  */
  60
  61
  62 #include <assert.h>
  63 #include <stdio.h>
  64 #include <openssl/objects.h>
  65 #include <openssl/lhash.h>
  66 #include <openssl/x509v3.h>
  67 #include "ssl_locl.h"
  68
  69 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
  70
  71 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_meth=NULL;
  72 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_ctx_meth=NULL;
  73 static int ssl_meth_num=0;
  74 static int ssl_ctx_meth_num=0;
  75
  76 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
  77         /* evil casts, but these functions are only called if there's a library bug */
  78         (int (*)(SSL *,int))ssl_undefined_function,
  79         (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
  80         ssl_undefined_function,
  81         (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
  82         (int (*)(SSL*, int))ssl_undefined_function,
  83         (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
  84         };
  85
  86 int SSL_clear(SSL *s)
  87         {
  88         int state;
  89
  90         if (s->method == NULL)
  91                 {
  92                 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
  93                 return(0);
  94                 }
  95
  96         s->error=0;
  97         s->hit=0;
  98         s->shutdown=0;
  99
 100 #if 0 /* Disabled since version 1.10 of this file (early return not
 101        * needed because SSL_clear is not called when doing renegotiation) */
 102         /* This is set if we are doing dynamic renegotiation so keep
 103          * the old cipher.  It is sort of a SSL_clear_lite :-) */
 104         if (s->new_session) return(1);
 105 #else
 106         if (s->new_session)
 107                 {
 108                 SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR);
 109                 return 0;
 110                 }
 111 #endif
 112
 113         state=s->state; /* Keep to check if we throw away the session-id */
 114         s->type=0;
 115
 116         s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
 117
 118         s->version=s->method->version;
 119         s->client_version=s->version;
 120         s->rwstate=SSL_NOTHING;
 121         s->rstate=SSL_ST_READ_HEADER;
 122 #if 0
 123         s->read_ahead=s->ctx->read_ahead;
 124 #endif
 125
 126         if (s->init_buf != NULL)
 127                 {
 128                 BUF_MEM_free(s->init_buf);
 129                 s->init_buf=NULL;
 130                 }
 131
 132         ssl_clear_cipher_ctx(s);
 133
 134         if (ssl_clear_bad_session(s))
 135                 {
 136                 SSL_SESSION_free(s->session);
 137                 s->session=NULL;
 138                 }
 139
 140         s->first_packet=0;
 141
 142 #if 1
 143         /* Check to see if we were changed into a different method, if
 144          * so, revert back if we are not doing session-id reuse. */
 145         if ((s->session == NULL) && (s->method != s->ctx->method))
 146                 {
 147                 s->method->ssl_free(s);
 148                 s->method=s->ctx->method;
 149                 if (!s->method->ssl_new(s))
 150                         return(0);
 151                 }
 152         else
 153 #endif
 154                 s->method->ssl_clear(s);
 155         return(1);
 156         }
 157
 158 /** Used to change an SSL_CTXs default SSL method type */
 159 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
 160         {
 161         STACK_OF(SSL_CIPHER) *sk;
 162
 163         ctx->method=meth;
 164
 165         sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
 166                 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
 167         if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
 168                 {
 169                 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
 170                 return(0);
 171                 }
 172         return(1);
 173         }
 174
 175 SSL *SSL_new(SSL_CTX *ctx)
 176         {
 177         SSL *s;
 178
 179         if (ctx == NULL)
 180                 {
 181                 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
 182                 return(NULL);
 183                 }
 184         if (ctx->method == NULL)
 185                 {
 186                 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
 187                 return(NULL);
 188                 }
 189
 190         s=(SSL *)OPENSSL_malloc(sizeof(SSL));
 191         if (s == NULL) goto err;
 192         memset(s,0,sizeof(SSL));
 193
 194         if (ctx->cert != NULL)
 195                 {
 196                 /* Earlier library versions used to copy the pointer to
 197                  * the CERT, not its contents; only when setting new
 198                  * parameters for the per-SSL copy, ssl_cert_new would be
 199                  * called (and the direct reference to the per-SSL_CTX
 200                  * settings would be lost, but those still were indirectly
 201                  * accessed for various purposes, and for that reason they
 202                  * used to be known as s->ctx->default_cert).
 203                  * Now we don't look at the SSL_CTX's CERT after having
 204                  * duplicated it once. */
 205
 206                 s->cert = ssl_cert_dup(ctx->cert);
 207                 if (s->cert == NULL)
 208                         goto err;
 209                 }
 210         else
 211                 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
 212         s->sid_ctx_length=ctx->sid_ctx_length;
 213         memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
 214         s->verify_mode=ctx->verify_mode;
 215         s->verify_depth=ctx->verify_depth;
 216         s->verify_callback=ctx->default_verify_callback;
 217         s->purpose = ctx->purpose;
 218         s->trust = ctx->trust;
 219         CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
 220         s->ctx=ctx;
 221
 222         s->verify_result=X509_V_OK;
 223
 224         s->method=ctx->method;
 225
 226         if (!s->method->ssl_new(s))
 227                 goto err;
 228
 229         s->quiet_shutdown=ctx->quiet_shutdown;
 230         s->references=1;
 231         s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
 232         s->options=ctx->options;
 233         s->mode=ctx->mode;
 234         s->read_ahead=ctx->read_ahead; /* used to happen in SSL_clear */
 235         SSL_clear(s);
 236
 237         CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
 238
 239         return(s);
 240 err:
 241         if (s != NULL)
 242                 {
 243                 if (s->cert != NULL)
 244                         ssl_cert_free(s->cert);
 245                 if (s->ctx != NULL)
 246                         SSL_CTX_free(s->ctx); /* decrement reference count */
 247                 OPENSSL_free(s);
 248                 }
 249         SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
 250         return(NULL);
 251         }
 252
 253 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
 254                                    unsigned int sid_ctx_len)
 255     {
 256     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
 257         {
 258         SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
 259         return 0;
 260         }
 261     ctx->sid_ctx_length=sid_ctx_len;
 262     memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
 263
 264     return 1;
 265     }
 266
 267 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
 268                                unsigned int sid_ctx_len)
 269     {
 270     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
 271         {
 272         SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
 273         return 0;
 274         }
 275     ssl->sid_ctx_length=sid_ctx_len;
 276     memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
 277
 278     return 1;
 279     }
 280
 281 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
 282 {
 283         if(X509_PURPOSE_get_by_id(purpose) == -1) {
 284                 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
 285                 return 0;
 286         }
 287         s->purpose = purpose;
 288         return 1;
 289 }
 290
 291 int SSL_set_purpose(SSL *s, int purpose)
 292 {
 293         if(X509_PURPOSE_get_by_id(purpose) == -1) {
 294                 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
 295                 return 0;
 296         }
 297         s->purpose = purpose;
 298         return 1;
 299 }
 300
 301 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
 302 {
 303         if(X509_TRUST_get_by_id(trust) == -1) {
 304                 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
 305                 return 0;
 306         }
 307         s->trust = trust;
 308         return 1;
 309 }
 310
 311 int SSL_set_trust(SSL *s, int trust)
 312 {
 313         if(X509_TRUST_get_by_id(trust) == -1) {
 314                 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
 315                 return 0;
 316         }
 317         s->trust = trust;
 318         return 1;
 319 }
 320
 321 void SSL_free(SSL *s)
 322         {
 323         int i;
 324
 325         if(s == NULL)
 326             return;
 327
 328         i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
 329 #ifdef REF_PRINT
 330         REF_PRINT("SSL",s);
 331 #endif
 332         if (i > 0) return;
 333 #ifdef REF_CHECK
 334         if (i < 0)
 335                 {
 336                 fprintf(stderr,"SSL_free, bad reference count\n");
 337                 abort(); /* ok */
 338                 }
 339 #endif
 340
 341         CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
 342
 343         if (s->bbio != NULL)
 344                 {
 345                 /* If the buffering BIO is in place, pop it off */
 346                 if (s->bbio == s->wbio)
 347                         {
 348                         s->wbio=BIO_pop(s->wbio);
 349                         }
 350                 BIO_free(s->bbio);
 351                 s->bbio=NULL;
 352                 }
 353         if (s->rbio != NULL)
 354                 BIO_free_all(s->rbio);
 355         if ((s->wbio != NULL) && (s->wbio != s->rbio))
 356                 BIO_free_all(s->wbio);
 357
 358         if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
 359
 360         /* add extra stuff */
 361         if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
 362         if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
 363
 364         /* Make the next call work :-) */
 365         if (s->session != NULL)
 366                 {
 367                 ssl_clear_bad_session(s);
 368                 SSL_SESSION_free(s->session);
 369                 }
 370
 371         ssl_clear_cipher_ctx(s);
 372
 373         if (s->cert != NULL) ssl_cert_free(s->cert);
 374         /* Free up if allocated */
 375
 376         if (s->ctx) SSL_CTX_free(s->ctx);
 377
 378         if (s->client_CA != NULL)
 379                 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
 380
 381         if (s->method != NULL) s->method->ssl_free(s);
 382
 383         OPENSSL_free(s);
 384         }
 385
 386 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
 387         {
 388         /* If the output buffering BIO is still in place, remove it
 389          */
 390         if (s->bbio != NULL)
 391                 {
 392                 if (s->wbio == s->bbio)
 393                         {
 394                         s->wbio=s->wbio->next_bio;
 395                         s->bbio->next_bio=NULL;
 396                         }
 397                 }
 398         if ((s->rbio != NULL) && (s->rbio != rbio))
 399                 BIO_free_all(s->rbio);
 400         if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
 401                 BIO_free_all(s->wbio);
 402         s->rbio=rbio;
 403         s->wbio=wbio;
 404         }
 405
 406 BIO *SSL_get_rbio(SSL *s)
 407         { return(s->rbio); }
 408
 409 BIO *SSL_get_wbio(SSL *s)
 410         { return(s->wbio); }
 411
 412 int SSL_get_fd(SSL *s)
 413         {
 414         int ret= -1;
 415         BIO *b,*r;
 416
 417         b=SSL_get_rbio(s);
 418         r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
 419         if (r != NULL)
 420                 BIO_get_fd(r,&ret);
 421         return(ret);
 422         }
 423
 424 #ifndef NO_SOCK
 425 int SSL_set_fd(SSL *s,int fd)
 426         {
 427         int ret=0;
 428         BIO *bio=NULL;
 429
 430         bio=BIO_new(BIO_s_socket());
 431
 432         if (bio == NULL)
 433                 {
 434                 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
 435                 goto err;
 436                 }
 437         BIO_set_fd(bio,fd,BIO_NOCLOSE);
 438         SSL_set_bio(s,bio,bio);
 439         ret=1;
 440 err:
 441         return(ret);
 442         }
 443
 444 int SSL_set_wfd(SSL *s,int fd)
 445         {
 446         int ret=0;
 447         BIO *bio=NULL;
 448
 449         if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
 450                 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
 451                 {
 452                 bio=BIO_new(BIO_s_socket());
 453
 454                 if (bio == NULL)
 455                         { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
 456                 BIO_set_fd(bio,fd,BIO_NOCLOSE);
 457                 SSL_set_bio(s,SSL_get_rbio(s),bio);
 458                 }
 459         else
 460                 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
 461         ret=1;
 462 err:
 463         return(ret);
 464         }
 465
 466 int SSL_set_rfd(SSL *s,int fd)
 467         {
 468         int ret=0;
 469         BIO *bio=NULL;
 470
 471         if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
 472                 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
 473                 {
 474                 bio=BIO_new(BIO_s_socket());
 475
 476                 if (bio == NULL)
 477                         {
 478                         SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
 479                         goto err;
 480                         }
 481                 BIO_set_fd(bio,fd,BIO_NOCLOSE);
 482                 SSL_set_bio(s,bio,SSL_get_wbio(s));
 483                 }
 484         else
 485                 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
 486         ret=1;
 487 err:
 488         return(ret);
 489         }
 490 #endif
 491
 492
 493 /* return length of latest Finished message we sent, copy to 'buf' */
 494 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
 495         {
 496         size_t ret = 0;
 497
 498         if (s->s3 != NULL)
 499                 {
 500                 ret = s->s3->tmp.finish_md_len;
 501                 if (count > ret)
 502                         count = ret;
 503                 memcpy(buf, s->s3->tmp.finish_md, count);
 504                 }
 505         return ret;
 506         }
 507
 508 /* return length of latest Finished message we expected, copy to 'buf' */
 509 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
 510         {
 511         size_t ret = 0;
 512
 513         if (s->s3 != NULL)
 514                 {
 515                 ret = s->s3->tmp.peer_finish_md_len;
 516                 if (count > ret)
 517                         count = ret;
 518                 memcpy(buf, s->s3->tmp.peer_finish_md, count);
 519                 }
 520         return ret;
 521         }
 522
 523
 524 int SSL_get_verify_mode(SSL *s)
 525         {
 526         return(s->verify_mode);
 527         }
 528
 529 int SSL_get_verify_depth(SSL *s)
 530         {
 531         return(s->verify_depth);
 532         }
 533
 534 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
 535         {
 536         return(s->verify_callback);
 537         }
 538
 539 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
 540         {
 541         return(ctx->verify_mode);
 542         }
 543
 544 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
 545         {
 546         return(ctx->verify_depth);
 547         }
 548
 549 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
 550         {
 551         return(ctx->default_verify_callback);
 552         }
 553
 554 void SSL_set_verify(SSL *s,int mode,
 555                     int (*callback)(int ok,X509_STORE_CTX *ctx))
 556         {
 557         s->verify_mode=mode;
 558         if (callback != NULL)
 559                 s->verify_callback=callback;
 560         }
 561
 562 void SSL_set_verify_depth(SSL *s,int depth)
 563         {
 564         s->verify_depth=depth;
 565         }
 566
 567 void SSL_set_read_ahead(SSL *s,int yes)
 568         {
 569         s->read_ahead=yes;
 570         }
 571
 572 int SSL_get_read_ahead(SSL *s)
 573         {
 574         return(s->read_ahead);
 575         }
 576
 577 int SSL_pending(SSL *s)
 578         {
 579         return(s->method->ssl_pending(s));
 580         }
 581
 582 X509 *SSL_get_peer_certificate(SSL *s)
 583         {
 584         X509 *r;
 585
 586         if ((s == NULL) || (s->session == NULL))
 587                 r=NULL;
 588         else
 589                 r=s->session->peer;
 590
 591         if (r == NULL) return(r);
 592
 593         CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
 594
 595         return(r);
 596         }
 597
 598 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
 599         {
 600         STACK_OF(X509) *r;
 601
 602         if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
 603                 r=NULL;
 604         else
 605                 r=s->session->sess_cert->cert_chain;
 606
 607         /* If we are a client, cert_chain includes the peer's own
 608          * certificate; if we are a server, it does not. */
 609
 610         return(r);
 611         }
 612
 613 /* Now in theory, since the calling process own 't' it should be safe to
 614  * modify.  We need to be able to read f without being hassled */
 615 void SSL_copy_session_id(SSL *t,SSL *f)
 616         {
 617         CERT *tmp;
 618
 619         /* Do we need to to SSL locking? */
 620         SSL_set_session(t,SSL_get_session(f));
 621
 622         /* what if we are setup as SSLv2 but want to talk SSLv3 or
 623          * vice-versa */
 624         if (t->method != f->method)
 625                 {
 626                 t->method->ssl_free(t); /* cleanup current */
 627                 t->method=f->method;    /* change method */
 628                 t->method->ssl_new(t);  /* setup new */
 629                 }
 630
 631         tmp=t->cert;
 632         if (f->cert != NULL)
 633                 {
 634                 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
 635                 t->cert=f->cert;
 636                 }
 637         else
 638                 t->cert=NULL;
 639         if (tmp != NULL) ssl_cert_free(tmp);
 640         SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
 641         }
 642
 643 /* Fix this so it checks all the valid key/cert options */
 644 int SSL_CTX_check_private_key(SSL_CTX *ctx)
 645         {
 646         if (    (ctx == NULL) ||
 647                 (ctx->cert == NULL) ||
 648                 (ctx->cert->key->x509 == NULL))
 649                 {
 650                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 651                 return(0);
 652                 }
 653         if      (ctx->cert->key->privatekey == NULL)
 654                 {
 655                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
 656                 return(0);
 657                 }
 658         return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
 659         }
 660
 661 /* Fix this function so that it takes an optional type parameter */
 662 int SSL_check_private_key(SSL *ssl)
 663         {
 664         if (ssl == NULL)
 665                 {
 666                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
 667                 return(0);
 668                 }
 669         if (ssl->cert == NULL)
 670                 {
 671                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 672                 return 0;
 673                 }
 674         if (ssl->cert->key->x509 == NULL)
 675                 {
 676                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
 677                 return(0);
 678                 }
 679         if (ssl->cert->key->privatekey == NULL)
 680                 {
 681                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
 682                 return(0);
 683                 }
 684         return(X509_check_private_key(ssl->cert->key->x509,
 685                 ssl->cert->key->privatekey));
 686         }
 687
 688 int SSL_accept(SSL *s)
 689         {
 690         if (s->handshake_func == 0)
 691                 /* Not properly initialized yet */
 692                 SSL_set_accept_state(s);
 693
 694         return(s->method->ssl_accept(s));
 695         }
 696
 697 int SSL_connect(SSL *s)
 698         {
 699         if (s->handshake_func == 0)
 700                 /* Not properly initialized yet */
 701                 SSL_set_connect_state(s);
 702
 703         return(s->method->ssl_connect(s));
 704         }
 705
 706 long SSL_get_default_timeout(SSL *s)
 707         {
 708         return(s->method->get_timeout());
 709         }
 710
 711 int SSL_read(SSL *s,void *buf,int num)
 712         {
 713         if (s->handshake_func == 0)
 714                 {
 715                 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
 716                 return -1;
 717                 }
 718
 719         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
 720                 {
 721                 s->rwstate=SSL_NOTHING;
 722                 return(0);
 723                 }
 724         return(s->method->ssl_read(s,buf,num));
 725         }
 726
 727 int SSL_peek(SSL *s,void *buf,int num)
 728         {
 729         if (s->handshake_func == 0)
 730                 {
 731                 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
 732                 return -1;
 733                 }
 734
 735         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
 736                 {
 737                 return(0);
 738                 }
 739         return(s->method->ssl_peek(s,buf,num));
 740         }
 741
 742 int SSL_write(SSL *s,const void *buf,int num)
 743         {
 744         if (s->handshake_func == 0)
 745                 {
 746                 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
 747                 return -1;
 748                 }
 749
 750         if (s->shutdown & SSL_SENT_SHUTDOWN)
 751                 {
 752                 s->rwstate=SSL_NOTHING;
 753                 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
 754                 return(-1);
 755                 }
 756         return(s->method->ssl_write(s,buf,num));
 757         }
 758
 759 int SSL_shutdown(SSL *s)
 760         {
 761         /* Note that this function behaves differently from what one might
 762          * expect.  Return values are 0 for no success (yet),
 763          * 1 for success; but calling it once is usually not enough,
 764          * even if blocking I/O is used (see ssl3_shutdown).
 765          */
 766
 767         if (s->handshake_func == 0)
 768                 {
 769                 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
 770                 return -1;
 771                 }
 772
 773         if ((s != NULL) && !SSL_in_init(s))
 774                 return(s->method->ssl_shutdown(s));
 775         else
 776                 return(1);
 777         }
 778
 779 int SSL_renegotiate(SSL *s)
 780         {
 781         s->new_session=1;
 782         return(s->method->ssl_renegotiate(s));
 783         }
 784
 785 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
 786         {
 787         long l;
 788
 789         switch (cmd)
 790                 {
 791         case SSL_CTRL_GET_READ_AHEAD:
 792                 return(s->read_ahead);
 793         case SSL_CTRL_SET_READ_AHEAD:
 794                 l=s->read_ahead;
 795                 s->read_ahead=larg;
 796                 return(l);
 797         case SSL_CTRL_OPTIONS:
 798                 return(s->options|=larg);
 799         case SSL_CTRL_MODE:
 800                 return(s->mode|=larg);
 801         default:
 802                 return(s->method->ssl_ctrl(s,cmd,larg,parg));
 803                 }
 804         }
 805
 806 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
 807         {
 808         switch(cmd)
 809                 {
 810         default:
 811                 return(s->method->ssl_callback_ctrl(s,cmd,fp));
 812                 }
 813         }
 814
 815 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
 816         {
 817         return ctx->sessions;
 818         }
 819
 820 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
 821         {
 822         long l;
 823
 824         switch (cmd)
 825                 {
 826         case SSL_CTRL_GET_READ_AHEAD:
 827                 return(ctx->read_ahead);
 828         case SSL_CTRL_SET_READ_AHEAD:
 829                 l=ctx->read_ahead;
 830                 ctx->read_ahead=larg;
 831                 return(l);
 832
 833         case SSL_CTRL_SET_SESS_CACHE_SIZE:
 834                 l=ctx->session_cache_size;
 835                 ctx->session_cache_size=larg;
 836                 return(l);
 837         case SSL_CTRL_GET_SESS_CACHE_SIZE:
 838                 return(ctx->session_cache_size);
 839         case SSL_CTRL_SET_SESS_CACHE_MODE:
 840                 l=ctx->session_cache_mode;
 841                 ctx->session_cache_mode=larg;
 842                 return(l);
 843         case SSL_CTRL_GET_SESS_CACHE_MODE:
 844                 return(ctx->session_cache_mode);
 845
 846         case SSL_CTRL_SESS_NUMBER:
 847                 return(ctx->sessions->num_items);
 848         case SSL_CTRL_SESS_CONNECT:
 849                 return(ctx->stats.sess_connect);
 850         case SSL_CTRL_SESS_CONNECT_GOOD:
 851                 return(ctx->stats.sess_connect_good);
 852         case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
 853                 return(ctx->stats.sess_connect_renegotiate);
 854         case SSL_CTRL_SESS_ACCEPT:
 855                 return(ctx->stats.sess_accept);
 856         case SSL_CTRL_SESS_ACCEPT_GOOD:
 857                 return(ctx->stats.sess_accept_good);
 858         case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
 859                 return(ctx->stats.sess_accept_renegotiate);
 860         case SSL_CTRL_SESS_HIT:
 861                 return(ctx->stats.sess_hit);
 862         case SSL_CTRL_SESS_CB_HIT:
 863                 return(ctx->stats.sess_cb_hit);
 864         case SSL_CTRL_SESS_MISSES:
 865                 return(ctx->stats.sess_miss);
 866         case SSL_CTRL_SESS_TIMEOUTS:
 867                 return(ctx->stats.sess_timeout);
 868         case SSL_CTRL_SESS_CACHE_FULL:
 869                 return(ctx->stats.sess_cache_full);
 870         case SSL_CTRL_OPTIONS:
 871                 return(ctx->options|=larg);
 872         case SSL_CTRL_MODE:
 873                 return(ctx->mode|=larg);
 874         default:
 875                 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
 876                 }
 877         }
 878
 879 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
 880         {
 881         switch(cmd)
 882                 {
 883         default:
 884                 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
 885                 }
 886         }
 887
 888 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
 889         {
 890         long l;
 891
 892         l=a->id-b->id;
 893         if (l == 0L)
 894                 return(0);
 895         else
 896                 return((l > 0)?1:-1);
 897         }
 898
 899 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
 900                         const SSL_CIPHER * const *bp)
 901         {
 902         long l;
 903
 904         l=(*ap)->id-(*bp)->id;
 905         if (l == 0L)
 906                 return(0);
 907         else
 908                 return((l > 0)?1:-1);
 909         }
 910
 911 /** return a STACK of the ciphers available for the SSL and in order of
 912  * preference */
 913 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
 914         {
 915         if ((s != NULL) && (s->cipher_list != NULL))
 916                 {
 917                 return(s->cipher_list);
 918                 }
 919         else if ((s->ctx != NULL) &&
 920                 (s->ctx->cipher_list != NULL))
 921                 {
 922                 return(s->ctx->cipher_list);
 923                 }
 924         return(NULL);
 925         }
 926
 927 /** return a STACK of the ciphers available for the SSL and in order of
 928  * algorithm id */
 929 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
 930         {
 931         if ((s != NULL) && (s->cipher_list_by_id != NULL))
 932                 {
 933                 return(s->cipher_list_by_id);
 934                 }
 935         else if ((s != NULL) && (s->ctx != NULL) &&
 936                 (s->ctx->cipher_list_by_id != NULL))
 937                 {
 938                 return(s->ctx->cipher_list_by_id);
 939                 }
 940         return(NULL);
 941         }
 942
 943 /** The old interface to get the same thing as SSL_get_ciphers() */
 944 const char *SSL_get_cipher_list(SSL *s,int n)
 945         {
 946         SSL_CIPHER *c;
 947         STACK_OF(SSL_CIPHER) *sk;
 948
 949         if (s == NULL) return(NULL);
 950         sk=SSL_get_ciphers(s);
 951         if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
 952                 return(NULL);
 953         c=sk_SSL_CIPHER_value(sk,n);
 954         if (c == NULL) return(NULL);
 955         return(c->name);
 956         }
 957
 958 /** specify the ciphers to be used by default by the SSL_CTX */
 959 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
 960         {
 961         STACK_OF(SSL_CIPHER) *sk;
 962
 963         sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
 964                 &ctx->cipher_list_by_id,str);
 965 /* XXXX */
 966         return((sk == NULL)?0:1);
 967         }
 968
 969 /** specify the ciphers to be used by the SSL */
 970 int SSL_set_cipher_list(SSL *s,const char *str)
 971         {
 972         STACK_OF(SSL_CIPHER) *sk;
 973
 974         sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
 975                 &s->cipher_list_by_id,str);
 976 /* XXXX */
 977         return((sk == NULL)?0:1);
 978         }
 979
 980 /* works well for SSLv2, not so good for SSLv3 */
 981 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
 982         {
 983         char *p;
 984         const char *cp;
 985         STACK_OF(SSL_CIPHER) *sk;
 986         SSL_CIPHER *c;
 987         int i;
 988
 989         if ((s->session == NULL) || (s->session->ciphers == NULL) ||
 990                 (len < 2))
 991                 return(NULL);
 992
 993         p=buf;
 994         sk=s->session->ciphers;
 995         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
 996                 {
 997                 /* Decrement for either the ':' or a '\0' */
 998                 len--;
 999                 c=sk_SSL_CIPHER_value(sk,i);
1000                 for (cp=c->name; *cp; )
1001                         {
1002                         if (len-- == 0)
1003                                 {
1004                                 *p='\0';
1005                                 return(buf);
1006                                 }
1007                         else
1008                                 *(p++)= *(cp++);
1009                         }
1010                 *(p++)=':';
1011                 }
1012         p[-1]='\0';
1013         return(buf);
1014         }
1015
1016 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1017         {
1018         int i,j=0;
1019         SSL_CIPHER *c;
1020         unsigned char *q;
1021
1022         if (sk == NULL) return(0);
1023         q=p;
1024
1025         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1026                 {
1027                 c=sk_SSL_CIPHER_value(sk,i);
1028                 j=ssl_put_cipher_by_char(s,c,p);
1029                 p+=j;
1030                 }
1031         return(p-q);
1032         }
1033
1034 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1035                                                STACK_OF(SSL_CIPHER) **skp)
1036         {
1037         SSL_CIPHER *c;
1038         STACK_OF(SSL_CIPHER) *sk;
1039         int i,n;
1040
1041         n=ssl_put_cipher_by_char(s,NULL,NULL);
1042         if ((num%n) != 0)
1043                 {
1044                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1045                 return(NULL);
1046                 }
1047         if ((skp == NULL) || (*skp == NULL))
1048                 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1049         else
1050                 {
1051                 sk= *skp;
1052                 sk_SSL_CIPHER_zero(sk);
1053                 }
1054
1055         for (i=0; i<num; i+=n)
1056                 {
1057                 c=ssl_get_cipher_by_char(s,p);
1058                 p+=n;
1059                 if (c != NULL)
1060                         {
1061                         if (!sk_SSL_CIPHER_push(sk,c))
1062                                 {
1063                                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1064                                 goto err;
1065                                 }
1066                         }
1067                 }
1068
1069         if (skp != NULL)
1070                 *skp=sk;
1071         return(sk);
1072 err:
1073         if ((skp == NULL) || (*skp == NULL))
1074                 sk_SSL_CIPHER_free(sk);
1075         return(NULL);
1076         }
1077
1078 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1079         {
1080         unsigned long l;
1081
1082         l=(unsigned long)
1083                 ((unsigned int) a->session_id[0]     )|
1084                 ((unsigned int) a->session_id[1]<< 8L)|
1085                 ((unsigned long)a->session_id[2]<<16L)|
1086                 ((unsigned long)a->session_id[3]<<24L);
1087         return(l);
1088         }
1089
1090 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1091         {
1092         if (a->ssl_version != b->ssl_version)
1093                 return(1);
1094         if (a->session_id_length != b->session_id_length)
1095                 return(1);
1096         return(memcmp(a->session_id,b->session_id,a->session_id_length));
1097         }
1098
1099 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1100         {
1101         SSL_CTX *ret=NULL;
1102
1103         if (meth == NULL)
1104                 {
1105                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1106                 return(NULL);
1107                 }
1108
1109         if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1110                 {
1111                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1112                 goto err;
1113                 }
1114         ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1115         if (ret == NULL)
1116                 goto err;
1117
1118         memset(ret,0,sizeof(SSL_CTX));
1119
1120         ret->method=meth;
1121
1122         ret->cert_store=NULL;
1123         ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1124         ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1125         ret->session_cache_head=NULL;
1126         ret->session_cache_tail=NULL;
1127
1128         /* We take the system default */
1129         ret->session_timeout=meth->get_timeout();
1130
1131         ret->new_session_cb=NULL;
1132         ret->remove_session_cb=NULL;
1133         ret->get_session_cb=NULL;
1134
1135         memset((char *)&ret->stats,0,sizeof(ret->stats));
1136
1137         ret->references=1;
1138         ret->quiet_shutdown=0;
1139
1140 /*      ret->cipher=NULL;*/
1141 /*      ret->s2->challenge=NULL;
1142         ret->master_key=NULL;
1143         ret->key_arg=NULL;
1144         ret->s2->conn_id=NULL; */
1145
1146         ret->info_callback=NULL;
1147
1148         ret->app_verify_callback=NULL;
1149         ret->app_verify_arg=NULL;
1150
1151         ret->read_ahead=0;
1152         ret->verify_mode=SSL_VERIFY_NONE;
1153         ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1154         ret->default_verify_callback=NULL;
1155         if ((ret->cert=ssl_cert_new()) == NULL)
1156                 goto err;
1157
1158         ret->default_passwd_callback=NULL;
1159         ret->default_passwd_callback_userdata=NULL;
1160         ret->client_cert_cb=NULL;
1161
1162         ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1163         if (ret->sessions == NULL) goto err;
1164         ret->cert_store=X509_STORE_new();
1165         if (ret->cert_store == NULL) goto err;
1166
1167         ssl_create_cipher_list(ret->method,
1168                 &ret->cipher_list,&ret->cipher_list_by_id,
1169                 SSL_DEFAULT_CIPHER_LIST);
1170         if (ret->cipher_list == NULL
1171             || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1172                 {
1173                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1174                 goto err2;
1175                 }
1176
1177         if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1178                 {
1179                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1180                 goto err2;
1181                 }
1182         if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1183                 {
1184                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1185                 goto err2;
1186                 }
1187         if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1188                 {
1189                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1190                 goto err2;
1191                 }
1192
1193         if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1194                 goto err;
1195
1196         CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1197
1198         ret->extra_certs=NULL;
1199         ret->comp_methods=SSL_COMP_get_compression_methods();
1200
1201         return(ret);
1202 err:
1203         SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1204 err2:
1205         if (ret != NULL) SSL_CTX_free(ret);
1206         return(NULL);
1207         }
1208
1209 static void SSL_COMP_free(SSL_COMP *comp)
1210     { OPENSSL_free(comp); }
1211
1212 void SSL_CTX_free(SSL_CTX *a)
1213         {
1214         int i;
1215
1216         if (a == NULL) return;
1217
1218         i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1219 #ifdef REF_PRINT
1220         REF_PRINT("SSL_CTX",a);
1221 #endif
1222         if (i > 0) return;
1223 #ifdef REF_CHECK
1224         if (i < 0)
1225                 {
1226                 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1227                 abort(); /* ok */
1228                 }
1229 #endif
1230         CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1231
1232         if (a->sessions != NULL)
1233                 {
1234                 SSL_CTX_flush_sessions(a,0);
1235                 lh_free(a->sessions);
1236                 }
1237         if (a->cert_store != NULL)
1238                 X509_STORE_free(a->cert_store);
1239         if (a->cipher_list != NULL)
1240                 sk_SSL_CIPHER_free(a->cipher_list);
1241         if (a->cipher_list_by_id != NULL)
1242                 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1243         if (a->cert != NULL)
1244                 ssl_cert_free(a->cert);
1245         if (a->client_CA != NULL)
1246                 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1247         if (a->extra_certs != NULL)
1248                 sk_X509_pop_free(a->extra_certs,X509_free);
1249         if (a->comp_methods != NULL)
1250                 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1251         OPENSSL_free(a);
1252         }
1253
1254 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1255         {
1256         ctx->default_passwd_callback=cb;
1257         }
1258
1259 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1260         {
1261         ctx->default_passwd_callback_userdata=u;
1262         }
1263
1264 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1265         {
1266         /* now
1267          *     int (*cb)(X509_STORE_CTX *),
1268          * but should be
1269          *     int (*cb)(X509_STORE_CTX *, void *arg)
1270          */
1271         ctx->app_verify_callback=cb;
1272         ctx->app_verify_arg=arg; /* never used */
1273         }
1274
1275 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1276         {
1277         ctx->verify_mode=mode;
1278         ctx->default_verify_callback=cb;
1279         /* This needs cleaning up EAY EAY EAY */
1280         X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1281         }
1282
1283 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1284         {
1285         ctx->verify_depth=depth;
1286         }
1287
1288 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1289         {
1290         CERT_PKEY *cpk;
1291         int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1292         int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1293         int rsa_tmp_export,dh_tmp_export,kl;
1294         unsigned long mask,emask;
1295
1296         if (c == NULL) return;
1297
1298         kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1299
1300 #ifndef NO_RSA
1301         rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1302         rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1303                 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1304 #else
1305         rsa_tmp=rsa_tmp_export=0;
1306 #endif
1307 #ifndef NO_DH
1308         dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1309         dh_tmp_export=(c->dh_tmp_cb != NULL ||
1310                 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1311 #else
1312         dh_tmp=dh_tmp_export=0;
1313 #endif
1314
1315         cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1316         rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1317         rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1318         cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1319         rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1320         cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1321         dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1322         cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1323         dh_rsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1324         dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1325         cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1326 /* FIX THIS EAY EAY EAY */
1327         dh_dsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1328         dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1329
1330         mask=0;
1331         emask=0;
1332
1333 #ifdef CIPHER_DEBUG
1334         printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1335                 rsa_tmp,rsa_tmp_export,dh_tmp,
1336                 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1337 #endif
1338
1339         if (rsa_enc || (rsa_tmp && rsa_sign))
1340                 mask|=SSL_kRSA;
1341         if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1342                 emask|=SSL_kRSA;
1343
1344 #if 0
1345         /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1346         if (    (dh_tmp || dh_rsa || dh_dsa) &&
1347                 (rsa_enc || rsa_sign || dsa_sign))
1348                 mask|=SSL_kEDH;
1349         if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1350                 (rsa_enc || rsa_sign || dsa_sign))
1351                 emask|=SSL_kEDH;
1352 #endif
1353
1354         if (dh_tmp_export)
1355                 emask|=SSL_kEDH;
1356
1357         if (dh_tmp)
1358                 mask|=SSL_kEDH;
1359
1360         if (dh_rsa) mask|=SSL_kDHr;
1361         if (dh_rsa_export) emask|=SSL_kDHr;
1362
1363         if (dh_dsa) mask|=SSL_kDHd;
1364         if (dh_dsa_export) emask|=SSL_kDHd;
1365
1366         if (rsa_enc || rsa_sign)
1367                 {
1368                 mask|=SSL_aRSA;
1369                 emask|=SSL_aRSA;
1370                 }
1371
1372         if (dsa_sign)
1373                 {
1374                 mask|=SSL_aDSS;
1375                 emask|=SSL_aDSS;
1376                 }
1377
1378         mask|=SSL_aNULL;
1379         emask|=SSL_aNULL;
1380
1381         c->mask=mask;
1382         c->export_mask=emask;
1383         c->valid=1;
1384         }
1385
1386 /* THIS NEEDS CLEANING UP */
1387 X509 *ssl_get_server_send_cert(SSL *s)
1388         {
1389         unsigned long alg,mask,kalg;
1390         CERT *c;
1391         int i,is_export;
1392
1393         c=s->cert;
1394         ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1395         alg=s->s3->tmp.new_cipher->algorithms;
1396         is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1397         mask=is_export?c->export_mask:c->mask;
1398         kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1399
1400         if      (kalg & SSL_kDHr)
1401                 i=SSL_PKEY_DH_RSA;
1402         else if (kalg & SSL_kDHd)
1403                 i=SSL_PKEY_DH_DSA;
1404         else if (kalg & SSL_aDSS)
1405                 i=SSL_PKEY_DSA_SIGN;
1406         else if (kalg & SSL_aRSA)
1407                 {
1408                 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1409                         i=SSL_PKEY_RSA_SIGN;
1410                 else
1411                         i=SSL_PKEY_RSA_ENC;
1412                 }
1413         else /* if (kalg & SSL_aNULL) */
1414                 {
1415                 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1416                 return(NULL);
1417                 }
1418         if (c->pkeys[i].x509 == NULL) return(NULL);
1419         return(c->pkeys[i].x509);
1420         }
1421
1422 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1423         {
1424         unsigned long alg;
1425         CERT *c;
1426
1427         alg=cipher->algorithms;
1428         c=s->cert;
1429
1430         if ((alg & SSL_aDSS) &&
1431                 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1432                 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1433         else if (alg & SSL_aRSA)
1434                 {
1435                 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1436                         return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1437                 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1438                         return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1439                 else
1440                         return(NULL);
1441                 }
1442         else /* if (alg & SSL_aNULL) */
1443                 {
1444                 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1445                 return(NULL);
1446                 }
1447         }
1448
1449 void ssl_update_cache(SSL *s,int mode)
1450         {
1451         int i;
1452
1453         /* If the session_id_length is 0, we are not supposed to cache it,
1454          * and it would be rather hard to do anyway :-) */
1455         if (s->session->session_id_length == 0) return;
1456
1457         if ((s->ctx->session_cache_mode & mode)
1458                 && (!s->hit)
1459                 && SSL_CTX_add_session(s->ctx,s->session)
1460                 && (s->ctx->new_session_cb != NULL))
1461                 {
1462                 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1463                 if (!s->ctx->new_session_cb(s,s->session))
1464                         SSL_SESSION_free(s->session);
1465                 }
1466
1467         /* auto flush every 255 connections */
1468         i=s->ctx->session_cache_mode;
1469         if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1470                 ((i & mode) == mode))
1471                 {
1472                 if (  (((mode & SSL_SESS_CACHE_CLIENT)
1473                         ?s->ctx->stats.sess_connect_good
1474                         :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1475                         {
1476                         SSL_CTX_flush_sessions(s->ctx,time(NULL));
1477                         }
1478                 }
1479         }
1480
1481 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1482         {
1483         return(s->method);
1484         }
1485
1486 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1487         {
1488         int conn= -1;
1489         int ret=1;
1490
1491         if (s->method != meth)
1492                 {
1493                 if (s->handshake_func != NULL)
1494                         conn=(s->handshake_func == s->method->ssl_connect);
1495
1496                 if (s->method->version == meth->version)
1497                         s->method=meth;
1498                 else
1499                         {
1500                         s->method->ssl_free(s);
1501                         s->method=meth;
1502                         ret=s->method->ssl_new(s);
1503                         }
1504
1505                 if (conn == 1)
1506                         s->handshake_func=meth->ssl_connect;
1507                 else if (conn == 0)
1508                         s->handshake_func=meth->ssl_accept;
1509                 }
1510         return(ret);
1511         }
1512
1513 int SSL_get_error(SSL *s,int i)
1514         {
1515         int reason;
1516         unsigned long l;
1517         BIO *bio;
1518
1519         if (i > 0) return(SSL_ERROR_NONE);
1520
1521         /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1522          * etc, where we do encode the error */
1523         if ((l=ERR_peek_error()) != 0)
1524                 {
1525                 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1526                         return(SSL_ERROR_SYSCALL);
1527                 else
1528                         return(SSL_ERROR_SSL);
1529                 }
1530
1531         if ((i < 0) && SSL_want_read(s))
1532                 {
1533                 bio=SSL_get_rbio(s);
1534                 if (BIO_should_read(bio))
1535                         return(SSL_ERROR_WANT_READ);
1536                 else if (BIO_should_write(bio))
1537                         /* This one doesn't make too much sense ... We never try
1538                          * to write to the rbio, and an application program where
1539                          * rbio and wbio are separate couldn't even know what it
1540                          * should wait for.
1541                          * However if we ever set s->rwstate incorrectly
1542                          * (so that we have SSL_want_read(s) instead of
1543                          * SSL_want_write(s)) and rbio and wbio *are* the same,
1544                          * this test works around that bug; so it might be safer
1545                          * to keep it. */
1546                         return(SSL_ERROR_WANT_WRITE);
1547                 else if (BIO_should_io_special(bio))
1548                         {
1549                         reason=BIO_get_retry_reason(bio);
1550                         if (reason == BIO_RR_CONNECT)
1551                                 return(SSL_ERROR_WANT_CONNECT);
1552                         else
1553                                 return(SSL_ERROR_SYSCALL); /* unknown */
1554                         }
1555                 }
1556
1557         if ((i < 0) && SSL_want_write(s))
1558                 {
1559                 bio=SSL_get_wbio(s);
1560                 if (BIO_should_write(bio))
1561                         return(SSL_ERROR_WANT_WRITE);
1562                 else if (BIO_should_read(bio))
1563                         /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1564                         return(SSL_ERROR_WANT_READ);
1565                 else if (BIO_should_io_special(bio))
1566                         {
1567                         reason=BIO_get_retry_reason(bio);
1568                         if (reason == BIO_RR_CONNECT)
1569                                 return(SSL_ERROR_WANT_CONNECT);
1570                         else
1571                                 return(SSL_ERROR_SYSCALL);
1572                         }
1573                 }
1574         if ((i < 0) && SSL_want_x509_lookup(s))
1575                 {
1576                 return(SSL_ERROR_WANT_X509_LOOKUP);
1577                 }
1578
1579         if (i == 0)
1580                 {
1581                 if (s->version == SSL2_VERSION)
1582                         {
1583                         /* assume it is the socket being closed */
1584                         return(SSL_ERROR_ZERO_RETURN);
1585                         }
1586                 else
1587                         {
1588                         if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1589                                 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1590                                 return(SSL_ERROR_ZERO_RETURN);
1591                         }
1592                 }
1593         return(SSL_ERROR_SYSCALL);
1594         }
1595
1596 int SSL_do_handshake(SSL *s)
1597         {
1598         int ret=1;
1599
1600         if (s->handshake_func == NULL)
1601                 {
1602                 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1603                 return(-1);
1604                 }
1605
1606         s->method->ssl_renegotiate_check(s);
1607
1608         if (SSL_in_init(s) || SSL_in_before(s))
1609                 {
1610                 ret=s->handshake_func(s);
1611                 }
1612         return(ret);
1613         }
1614
1615 /* For the next 2 functions, SSL_clear() sets shutdown and so
1616  * one of these calls will reset it */
1617 void SSL_set_accept_state(SSL *s)
1618         {
1619         s->server=1;
1620         s->shutdown=0;
1621         s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1622         s->handshake_func=s->method->ssl_accept;
1623         /* clear the current cipher */
1624         ssl_clear_cipher_ctx(s);
1625         }
1626
1627 void SSL_set_connect_state(SSL *s)
1628         {
1629         s->server=0;
1630         s->shutdown=0;
1631         s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1632         s->handshake_func=s->method->ssl_connect;
1633         /* clear the current cipher */
1634         ssl_clear_cipher_ctx(s);
1635         }
1636
1637 int ssl_undefined_function(SSL *s)
1638         {
1639         SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1640         return(0);
1641         }
1642
1643 SSL_METHOD *ssl_bad_method(int ver)
1644         {
1645         SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1646         return(NULL);
1647         }
1648
1649 const char *SSL_get_version(SSL *s)
1650         {
1651         if (s->version == TLS1_VERSION)
1652                 return("TLSv1");
1653         else if (s->version == SSL3_VERSION)
1654                 return("SSLv3");
1655         else if (s->version == SSL2_VERSION)
1656                 return("SSLv2");
1657         else
1658                 return("unknown");
1659         }
1660
1661 SSL *SSL_dup(SSL *s)
1662         {
1663         STACK_OF(X509_NAME) *sk;
1664         X509_NAME *xn;
1665         SSL *ret;
1666         int i;
1667
1668         if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1669             return(NULL);
1670
1671         if (s->session != NULL)
1672                 {
1673                 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1674                 SSL_copy_session_id(ret,s);
1675                 }
1676         else
1677                 {
1678                 /* No session has been established yet, so we have to expect
1679                  * that s->cert or ret->cert will be changed later --
1680                  * they should not both point to the same object,
1681                  * and thus we can't use SSL_copy_session_id. */
1682
1683                 ret->method = s->method;
1684                 ret->method->ssl_new(ret);
1685
1686                 if (s->cert != NULL)
1687                         {
1688                         if (ret->cert != NULL)
1689                                 {
1690                                 ssl_cert_free(ret->cert);
1691                                 }
1692                         ret->cert = ssl_cert_dup(s->cert);
1693                         if (ret->cert == NULL)
1694                                 goto err;
1695                         }
1696
1697                 SSL_set_session_id_context(ret,
1698                         s->sid_ctx, s->sid_ctx_length);
1699                 }
1700
1701         SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1702         SSL_set_verify(ret,SSL_get_verify_mode(s),
1703                 SSL_get_verify_callback(s));
1704         SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1705
1706         SSL_set_info_callback(ret,SSL_get_info_callback(s));
1707
1708         ret->debug=s->debug;
1709         ret->options=s->options;
1710
1711         /* copy app data, a little dangerous perhaps */
1712         if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1713                 goto err;
1714
1715         /* setup rbio, and wbio */
1716         if (s->rbio != NULL)
1717                 {
1718                 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1719                         goto err;
1720                 }
1721         if (s->wbio != NULL)
1722                 {
1723                 if (s->wbio != s->rbio)
1724                         {
1725                         if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1726                                 goto err;
1727                         }
1728                 else
1729                         ret->wbio=ret->rbio;
1730                 }
1731
1732         /* dup the cipher_list and cipher_list_by_id stacks */
1733         if (s->cipher_list != NULL)
1734                 {
1735                 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1736                         goto err;
1737                 }
1738         if (s->cipher_list_by_id != NULL)
1739                 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1740                         == NULL)
1741                         goto err;
1742
1743         /* Dup the client_CA list */
1744         if (s->client_CA != NULL)
1745                 {
1746                 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1747                 ret->client_CA=sk;
1748                 for (i=0; i<sk_X509_NAME_num(sk); i++)
1749                         {
1750                         xn=sk_X509_NAME_value(sk,i);
1751                         if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1752                                 {
1753                                 X509_NAME_free(xn);
1754                                 goto err;
1755                                 }
1756                         }
1757                 }
1758
1759         ret->shutdown=s->shutdown;
1760         ret->state=s->state;
1761         ret->handshake_func=s->handshake_func;
1762         ret->server=s->server;
1763
1764         if (0)
1765                 {
1766 err:
1767                 if (ret != NULL) SSL_free(ret);
1768                 ret=NULL;
1769                 }
1770         return(ret);
1771         }
1772
1773 void ssl_clear_cipher_ctx(SSL *s)
1774         {
1775         if (s->enc_read_ctx != NULL)
1776                 {
1777                 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1778                 OPENSSL_free(s->enc_read_ctx);
1779                 s->enc_read_ctx=NULL;
1780                 }
1781         if (s->enc_write_ctx != NULL)
1782                 {
1783                 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1784                 OPENSSL_free(s->enc_write_ctx);
1785                 s->enc_write_ctx=NULL;
1786                 }
1787         if (s->expand != NULL)
1788                 {
1789                 COMP_CTX_free(s->expand);
1790                 s->expand=NULL;
1791                 }
1792         if (s->compress != NULL)
1793                 {
1794                 COMP_CTX_free(s->compress);
1795                 s->compress=NULL;
1796                 }
1797         }
1798
1799 /* Fix this function so that it takes an optional type parameter */
1800 X509 *SSL_get_certificate(SSL *s)
1801         {
1802         if (s->cert != NULL)
1803                 return(s->cert->key->x509);
1804         else
1805                 return(NULL);
1806         }
1807
1808 /* Fix this function so that it takes an optional type parameter */
1809 EVP_PKEY *SSL_get_privatekey(SSL *s)
1810         {
1811         if (s->cert != NULL)
1812                 return(s->cert->key->privatekey);
1813         else
1814                 return(NULL);
1815         }
1816
1817 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1818         {
1819         if ((s->session != NULL) && (s->session->cipher != NULL))
1820                 return(s->session->cipher);
1821         return(NULL);
1822         }
1823
1824 int ssl_init_wbio_buffer(SSL *s,int push)
1825         {
1826         BIO *bbio;
1827
1828         if (s->bbio == NULL)
1829                 {
1830                 bbio=BIO_new(BIO_f_buffer());
1831                 if (bbio == NULL) return(0);
1832                 s->bbio=bbio;
1833                 }
1834         else
1835                 {
1836                 bbio=s->bbio;
1837                 if (s->bbio == s->wbio)
1838                         s->wbio=BIO_pop(s->wbio);
1839                 }
1840         (void)BIO_reset(bbio);
1841 /*      if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1842         if (!BIO_set_read_buffer_size(bbio,1))
1843                 {
1844                 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1845                 return(0);
1846                 }
1847         if (push)
1848                 {
1849                 if (s->wbio != bbio)
1850                         s->wbio=BIO_push(bbio,s->wbio);
1851                 }
1852         else
1853                 {
1854                 if (s->wbio == bbio)
1855                         s->wbio=BIO_pop(bbio);
1856                 }
1857         return(1);
1858         }
1859
1860 void ssl_free_wbio_buffer(SSL *s)
1861         {
1862         if (s->bbio == NULL) return;
1863
1864         if (s->bbio == s->wbio)
1865                 {
1866                 /* remove buffering */
1867                 s->wbio=BIO_pop(s->wbio);
1868 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
1869                 assert(s->wbio != NULL);
1870 #endif
1871         }
1872         BIO_free(s->bbio);
1873         s->bbio=NULL;
1874         }
1875
1876 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1877         {
1878         ctx->quiet_shutdown=mode;
1879         }
1880
1881 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1882         {
1883         return(ctx->quiet_shutdown);
1884         }
1885
1886 void SSL_set_quiet_shutdown(SSL *s,int mode)
1887         {
1888         s->quiet_shutdown=mode;
1889         }
1890
1891 int SSL_get_quiet_shutdown(SSL *s)
1892         {
1893         return(s->quiet_shutdown);
1894         }
1895
1896 void SSL_set_shutdown(SSL *s,int mode)
1897         {
1898         s->shutdown=mode;
1899         }
1900
1901 int SSL_get_shutdown(SSL *s)
1902         {
1903         return(s->shutdown);
1904         }
1905
1906 int SSL_version(SSL *s)
1907         {
1908         return(s->version);
1909         }
1910
1911 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1912         {
1913         return(ssl->ctx);
1914         }
1915
1916 #ifndef NO_STDIO
1917 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1918         {
1919         return(X509_STORE_set_default_paths(ctx->cert_store));
1920         }
1921
1922 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1923                 const char *CApath)
1924         {
1925         return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1926         }
1927 #endif
1928
1929 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1930         {
1931         ssl->info_callback=cb;
1932         }
1933
1934 void (*SSL_get_info_callback(SSL *ssl))(void)
1935         {
1936         return((void (*)())ssl->info_callback);
1937         }
1938
1939 int SSL_state(SSL *ssl)
1940         {
1941         return(ssl->state);
1942         }
1943
1944 void SSL_set_verify_result(SSL *ssl,long arg)
1945         {
1946         ssl->verify_result=arg;
1947         }
1948
1949 long SSL_get_verify_result(SSL *ssl)
1950         {
1951         return(ssl->verify_result);
1952         }
1953
1954 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1955                          CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1956         {
1957         ssl_meth_num++;
1958         return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1959                 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1960         }
1961
1962 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1963         {
1964         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1965         }
1966
1967 void *SSL_get_ex_data(SSL *s,int idx)
1968         {
1969         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1970         }
1971
1972 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1973                              CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1974         {
1975         ssl_ctx_meth_num++;
1976         return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1977                 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1978         }
1979
1980 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1981         {
1982         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1983         }
1984
1985 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1986         {
1987         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1988         }
1989
1990 int ssl_ok(SSL *s)
1991         {
1992         return(1);
1993         }
1994
1995 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1996         {
1997         return(ctx->cert_store);
1998         }
1999
2000 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2001         {
2002         if (ctx->cert_store != NULL)
2003                 X509_STORE_free(ctx->cert_store);
2004         ctx->cert_store=store;
2005         }
2006
2007 int SSL_want(SSL *s)
2008         {
2009         return(s->rwstate);
2010         }
2011
2012 /*!
2013  * \brief Set the callback for generating temporary RSA keys.
2014  * \param ctx the SSL context.
2015  * \param cb the callback
2016  */
2017
2018 #ifndef NO_RSA
2019 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2020                                                           int is_export,
2021                                                           int keylength))
2022     {
2023     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2024     }
2025
2026 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2027                                                   int is_export,
2028                                                   int keylength))
2029     {
2030     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2031     }
2032 #endif
2033
2034 #ifdef DOXYGEN
2035 /*!
2036  * \brief The RSA temporary key callback function.
2037  * \param ssl the SSL session.
2038  * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2039  * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2040  * of the required key in bits.
2041  * \return the temporary RSA key.
2042  * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2043  */
2044
2045 RSA *cb(SSL *ssl,int is_export,int keylength)
2046     {}
2047 #endif
2048
2049 /*!
2050  * \brief Set the callback for generating temporary DH keys.
2051  * \param ctx the SSL context.
2052  * \param dh the callback
2053  */
2054
2055 #ifndef NO_DH
2056 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2057                                                         int keylength))
2058     {
2059     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2060     }
2061
2062 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2063                                                 int keylength))
2064     {
2065     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2066     }
2067 #endif
2068
2069 #if defined(_WINDLL) && defined(WIN16)
2070 #include "../crypto/bio/bss_file.c"
2071 #endif
2072
2073 IMPLEMENT_STACK_OF(SSL_CIPHER)
2074 IMPLEMENT_STACK_OF(SSL_COMP)