ssl/s2_clnt.c

   1 /* ssl/s2_clnt.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111
 112 #include "ssl_locl.h"
 113 #ifndef OPENSSL_NO_SSL2
 114 #include <stdio.h>
 115 #include <openssl/rand.h>
 116 #include <openssl/buffer.h>
 117 #include <openssl/objects.h>
 118 #include <openssl/evp.h>
 119 #include "cryptlib.h"
 120
 121 static SSL_METHOD *ssl2_get_client_method(int ver);
 122 static int get_server_finished(SSL *s);
 123 static int get_server_verify(SSL *s);
 124 static int get_server_hello(SSL *s);
 125 static int client_hello(SSL *s);
 126 static int client_master_key(SSL *s);
 127 static int client_finished(SSL *s);
 128 static int client_certificate(SSL *s);
 129 static int ssl_rsa_public_encrypt(SESS_CERT *sc, int len, unsigned char *from,
 130         unsigned char *to,int padding);
 131 #define BREAK   break
 132
 133 static SSL_METHOD *ssl2_get_client_method(int ver)
 134         {
 135         if (ver == SSL2_VERSION)
 136                 return(SSLv2_client_method());
 137         else
 138                 return(NULL);
 139         }
 140
 141 SSL_METHOD *SSLv2_client_method(void)
 142         {
 143         static int init=1;
 144         static SSL_METHOD SSLv2_client_data;
 145
 146         if (init)
 147                 {
 148                 CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
 149
 150                 memcpy((char *)&SSLv2_client_data,(char *)sslv2_base_method(),
 151                         sizeof(SSL_METHOD));
 152                 SSLv2_client_data.ssl_connect=ssl2_connect;
 153                 SSLv2_client_data.get_ssl_method=ssl2_get_client_method;
 154                 init=0;
 155
 156                 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
 157                 }
 158         return(&SSLv2_client_data);
 159         }
 160
 161 int ssl2_connect(SSL *s)
 162         {
 163         unsigned long l=time(NULL);
 164         BUF_MEM *buf=NULL;
 165         int ret= -1;
 166         void (*cb)(const SSL *ssl,int type,int val)=NULL;
 167         int new_state,state;
 168
 169         RAND_add(&l,sizeof(l),0);
 170         ERR_clear_error();
 171         clear_sys_error();
 172
 173         if (s->info_callback != NULL)
 174                 cb=s->info_callback;
 175         else if (s->ctx->info_callback != NULL)
 176                 cb=s->ctx->info_callback;
 177
 178         /* init things to blank */
 179         s->in_handshake++;
 180         if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
 181
 182         for (;;)
 183                 {
 184                 state=s->state;
 185
 186                 switch (s->state)
 187                         {
 188                 case SSL_ST_BEFORE:
 189                 case SSL_ST_CONNECT:
 190                 case SSL_ST_BEFORE|SSL_ST_CONNECT:
 191                 case SSL_ST_OK|SSL_ST_CONNECT:
 192
 193                         s->server=0;
 194                         if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
 195
 196                         s->version=SSL2_VERSION;
 197                         s->type=SSL_ST_CONNECT;
 198
 199                         buf=s->init_buf;
 200                         if ((buf == NULL) && ((buf=BUF_MEM_new()) == NULL))
 201                                 {
 202                                 ret= -1;
 203                                 goto end;
 204                                 }
 205                         if (!BUF_MEM_grow(buf,
 206                                 SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER))
 207                                 {
 208                                 ret= -1;
 209                                 goto end;
 210                                 }
 211                         s->init_buf=buf;
 212                         s->init_num=0;
 213                         s->state=SSL2_ST_SEND_CLIENT_HELLO_A;
 214                         s->ctx->stats.sess_connect++;
 215                         s->handshake_func=ssl2_connect;
 216                         BREAK;
 217
 218                 case SSL2_ST_SEND_CLIENT_HELLO_A:
 219                 case SSL2_ST_SEND_CLIENT_HELLO_B:
 220                         s->shutdown=0;
 221                         ret=client_hello(s);
 222                         if (ret <= 0) goto end;
 223                         s->init_num=0;
 224                         s->state=SSL2_ST_GET_SERVER_HELLO_A;
 225                         BREAK;
 226
 227                 case SSL2_ST_GET_SERVER_HELLO_A:
 228                 case SSL2_ST_GET_SERVER_HELLO_B:
 229                         ret=get_server_hello(s);
 230                         if (ret <= 0) goto end;
 231                         s->init_num=0;
 232                         if (!s->hit) /* new session */
 233                                 {
 234                                 s->state=SSL2_ST_SEND_CLIENT_MASTER_KEY_A;
 235                                 BREAK;
 236                                 }
 237                         else
 238                                 {
 239                                 s->state=SSL2_ST_CLIENT_START_ENCRYPTION;
 240                                 break;
 241                                 }
 242
 243                 case SSL2_ST_SEND_CLIENT_MASTER_KEY_A:
 244                 case SSL2_ST_SEND_CLIENT_MASTER_KEY_B:
 245                         ret=client_master_key(s);
 246                         if (ret <= 0) goto end;
 247                         s->init_num=0;
 248                         s->state=SSL2_ST_CLIENT_START_ENCRYPTION;
 249                         break;
 250
 251                 case SSL2_ST_CLIENT_START_ENCRYPTION:
 252                         /* Ok, we now have all the stuff needed to
 253                          * start encrypting, so lets fire it up :-) */
 254                         if (!ssl2_enc_init(s,1))
 255                                 {
 256                                 ret= -1;
 257                                 goto end;
 258                                 }
 259                         s->s2->clear_text=0;
 260                         s->state=SSL2_ST_SEND_CLIENT_FINISHED_A;
 261                         break;
 262
 263                 case SSL2_ST_SEND_CLIENT_FINISHED_A:
 264                 case SSL2_ST_SEND_CLIENT_FINISHED_B:
 265                         ret=client_finished(s);
 266                         if (ret <= 0) goto end;
 267                         s->init_num=0;
 268                         s->state=SSL2_ST_GET_SERVER_VERIFY_A;
 269                         break;
 270
 271                 case SSL2_ST_GET_SERVER_VERIFY_A:
 272                 case SSL2_ST_GET_SERVER_VERIFY_B:
 273                         ret=get_server_verify(s);
 274                         if (ret <= 0) goto end;
 275                         s->init_num=0;
 276                         s->state=SSL2_ST_GET_SERVER_FINISHED_A;
 277                         break;
 278
 279                 case SSL2_ST_GET_SERVER_FINISHED_A:
 280                 case SSL2_ST_GET_SERVER_FINISHED_B:
 281                         ret=get_server_finished(s);
 282                         if (ret <= 0) goto end;
 283                         break;
 284
 285                 case SSL2_ST_SEND_CLIENT_CERTIFICATE_A:
 286                 case SSL2_ST_SEND_CLIENT_CERTIFICATE_B:
 287                 case SSL2_ST_SEND_CLIENT_CERTIFICATE_C:
 288                 case SSL2_ST_SEND_CLIENT_CERTIFICATE_D:
 289                 case SSL2_ST_X509_GET_CLIENT_CERTIFICATE:
 290                         ret=client_certificate(s);
 291                         if (ret <= 0) goto end;
 292                         s->init_num=0;
 293                         s->state=SSL2_ST_GET_SERVER_FINISHED_A;
 294                         break;
 295
 296                 case SSL_ST_OK:
 297                         if (s->init_buf != NULL)
 298                                 {
 299                                 BUF_MEM_free(s->init_buf);
 300                                 s->init_buf=NULL;
 301                                 }
 302                         s->init_num=0;
 303                 /*      ERR_clear_error();*/
 304
 305                         /* If we want to cache session-ids in the client
 306                          * and we successfully add the session-id to the
 307                          * cache, and there is a callback, then pass it out.
 308                          * 26/11/96 - eay - only add if not a re-used session.
 309                          */
 310
 311                         ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
 312                         if (s->hit) s->ctx->stats.sess_hit++;
 313
 314                         ret=1;
 315                         /* s->server=0; */
 316                         s->ctx->stats.sess_connect_good++;
 317
 318                         if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
 319
 320                         goto end;
 321                         /* break; */
 322                 default:
 323                         SSLerr(SSL_F_SSL2_CONNECT,SSL_R_UNKNOWN_STATE);
 324                         return(-1);
 325                         /* break; */
 326                         }
 327
 328                 if ((cb != NULL) && (s->state != state))
 329                         {
 330                         new_state=s->state;
 331                         s->state=state;
 332                         cb(s,SSL_CB_CONNECT_LOOP,1);
 333                         s->state=new_state;
 334                         }
 335                 }
 336 end:
 337         s->in_handshake--;
 338         if (cb != NULL)
 339                 cb(s,SSL_CB_CONNECT_EXIT,ret);
 340         return(ret);
 341         }
 342
 343 static int get_server_hello(SSL *s)
 344         {
 345         unsigned char *buf;
 346         unsigned char *p;
 347         int i,j;
 348         unsigned long len;
 349         STACK_OF(SSL_CIPHER) *sk=NULL,*cl, *prio, *allow;
 350
 351         buf=(unsigned char *)s->init_buf->data;
 352         p=buf;
 353         if (s->state == SSL2_ST_GET_SERVER_HELLO_A)
 354                 {
 355                 i=ssl2_read(s,(char *)&(buf[s->init_num]),11-s->init_num);
 356                 if (i < (11-s->init_num))
 357                         return(ssl2_part_read(s,SSL_F_GET_SERVER_HELLO,i));
 358                 s->init_num = 11;
 359
 360                 if (*(p++) != SSL2_MT_SERVER_HELLO)
 361                         {
 362                         if (p[-1] != SSL2_MT_ERROR)
 363                                 {
 364                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 365                                 SSLerr(SSL_F_GET_SERVER_HELLO,
 366                                         SSL_R_READ_WRONG_PACKET_TYPE);
 367                                 }
 368                         else
 369                                 SSLerr(SSL_F_GET_SERVER_HELLO,
 370                                         SSL_R_PEER_ERROR);
 371                         return(-1);
 372                         }
 373 #ifdef __APPLE_CC__
 374                 /* The Rhapsody 5.5 (a.k.a. MacOS X) compiler bug
 375                  * workaround. <appro@fy.chalmers.se> */
 376                 s->hit=(i=*(p++))?1:0;
 377 #else
 378                 s->hit=(*(p++))?1:0;
 379 #endif
 380                 s->s2->tmp.cert_type= *(p++);
 381                 n2s(p,i);
 382                 if (i < s->version) s->version=i;
 383                 n2s(p,i); s->s2->tmp.cert_length=i;
 384                 n2s(p,i); s->s2->tmp.csl=i;
 385                 n2s(p,i); s->s2->tmp.conn_id_length=i;
 386                 s->state=SSL2_ST_GET_SERVER_HELLO_B;
 387                 }
 388
 389         /* SSL2_ST_GET_SERVER_HELLO_B */
 390         len = 11 + (unsigned long)s->s2->tmp.cert_length + (unsigned long)s->s2->tmp.csl + (unsigned long)s->s2->tmp.conn_id_length;
 391         if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)
 392                 {
 393                 SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_MESSAGE_TOO_LONG);
 394                 return -1;
 395                 }
 396         j = (int)len - s->init_num;
 397         i = ssl2_read(s,(char *)&(buf[s->init_num]),j);
 398         if (i != j) return(ssl2_part_read(s,SSL_F_GET_SERVER_HELLO,i));
 399         if (s->msg_callback)
 400                 s->msg_callback(0, s->version, 0, buf, (size_t)len, s, s->msg_callback_arg); /* SERVER-HELLO */
 401
 402         /* things are looking good */
 403
 404         p = buf + 11;
 405         if (s->hit)
 406                 {
 407                 if (s->s2->tmp.cert_length != 0)
 408                         {
 409                         SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CERT_LENGTH_NOT_ZERO);
 410                         return(-1);
 411                         }
 412                 if (s->s2->tmp.cert_type != 0)
 413                         {
 414                         if (!(s->options &
 415                                 SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG))
 416                                 {
 417                                 SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CERT_TYPE_NOT_ZERO);
 418                                 return(-1);
 419                                 }
 420                         }
 421                 if (s->s2->tmp.csl != 0)
 422                         {
 423                         SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CIPHER_LIST_NOT_ZERO);
 424                         return(-1);
 425                         }
 426                 }
 427         else
 428                 {
 429 #ifdef undef
 430                 /* very bad */
 431                 memset(s->session->session_id,0,
 432                         SSL_MAX_SSL_SESSION_ID_LENGTH_IN_BYTES);
 433                 s->session->session_id_length=0;
 434                 */
 435 #endif
 436
 437                 /* we need to do this in case we were trying to reuse a
 438                  * client session but others are already reusing it.
 439                  * If this was a new 'blank' session ID, the session-id
 440                  * length will still be 0 */
 441                 if (s->session->session_id_length > 0)
 442                         {
 443                         if (!ssl_get_new_session(s,0))
 444                                 {
 445                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 446                                 return(-1);
 447                                 }
 448                         }
 449
 450                 if (ssl2_set_certificate(s,s->s2->tmp.cert_type,
 451                         s->s2->tmp.cert_length,p) <= 0)
 452                         {
 453                         ssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE);
 454                         return(-1);
 455                         }
 456                 p+=s->s2->tmp.cert_length;
 457
 458                 if (s->s2->tmp.csl == 0)
 459                         {
 460                         ssl2_return_error(s,SSL2_PE_NO_CIPHER);
 461                         SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_NO_CIPHER_LIST);
 462                         return(-1);
 463                         }
 464
 465                 /* We have just received a list of ciphers back from the
 466                  * server.  We need to get the ones that match, then select
 467                  * the one we want the most :-). */
 468
 469                 /* load the ciphers */
 470                 sk=ssl_bytes_to_cipher_list(s,p,s->s2->tmp.csl,
 471                                             &s->session->ciphers);
 472                 p+=s->s2->tmp.csl;
 473                 if (sk == NULL)
 474                         {
 475                         ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 476                         SSLerr(SSL_F_GET_SERVER_HELLO,ERR_R_MALLOC_FAILURE);
 477                         return(-1);
 478                         }
 479
 480                 sk_SSL_CIPHER_set_cmp_func(sk,ssl_cipher_ptr_id_cmp);
 481
 482                 /* get the array of ciphers we will accept */
 483                 cl=SSL_get_ciphers(s);
 484                 sk_SSL_CIPHER_set_cmp_func(cl,ssl_cipher_ptr_id_cmp);
 485
 486                 /*
 487                  * If server preference flag set, choose the first
 488                  * (highest priority) cipher the server sends, otherwise
 489                  * client preference has priority.
 490                  */
 491                 if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE)
 492                     {
 493                     prio = sk;
 494                     allow = cl;
 495                     }
 496                 else
 497                     {
 498                     prio = cl;
 499                     allow = sk;
 500                     }
 501                 /* In theory we could have ciphers sent back that we
 502                  * don't want to use but that does not matter since we
 503                  * will check against the list we originally sent and
 504                  * for performance reasons we should not bother to match
 505                  * the two lists up just to check. */
 506                 for (i=0; i<sk_SSL_CIPHER_num(prio); i++)
 507                         {
 508                         if (sk_SSL_CIPHER_find(allow,
 509                                              sk_SSL_CIPHER_value(prio,i)) >= 0)
 510                                 break;
 511                         }
 512
 513                 if (i >= sk_SSL_CIPHER_num(prio))
 514                         {
 515                         ssl2_return_error(s,SSL2_PE_NO_CIPHER);
 516                         SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_NO_CIPHER_MATCH);
 517                         return(-1);
 518                         }
 519                 s->session->cipher=sk_SSL_CIPHER_value(prio,i);
 520
 521
 522                 if (s->session->peer != NULL) /* can't happen*/
 523                         {
 524                         ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
 525                         SSLerr(SSL_F_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
 526                         return(-1);
 527                         }
 528
 529                 s->session->peer = s->session->sess_cert->peer_key->x509;
 530                 /* peer_key->x509 has been set by ssl2_set_certificate. */
 531                 CRYPTO_add(&s->session->peer->references, 1, CRYPTO_LOCK_X509);
 532                 }
 533
 534         if (s->session->peer != s->session->sess_cert->peer_key->x509)
 535                 /* can't happen */
 536                 {
 537                 ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
 538                 SSLerr(SSL_F_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
 539                 return(-1);
 540                 }
 541
 542         s->s2->conn_id_length=s->s2->tmp.conn_id_length;
 543         if (s->s2->conn_id_length > sizeof s->s2->conn_id)
 544                 {
 545                 ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
 546                 SSLerr(SSL_F_GET_SERVER_HELLO, SSL_R_SSL2_CONNECTION_ID_TOO_LONG);
 547                 return -1;
 548                 }
 549         memcpy(s->s2->conn_id,p,s->s2->tmp.conn_id_length);
 550         return(1);
 551         }
 552
 553 static int client_hello(SSL *s)
 554         {
 555         unsigned char *buf;
 556         unsigned char *p,*d;
 557 /*      CIPHER **cipher;*/
 558         int i,n,j;
 559
 560         buf=(unsigned char *)s->init_buf->data;
 561         if (s->state == SSL2_ST_SEND_CLIENT_HELLO_A)
 562                 {
 563                 if ((s->session == NULL) ||
 564                         (s->session->ssl_version != s->version))
 565                         {
 566                         if (!ssl_get_new_session(s,0))
 567                                 {
 568                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 569                                 return(-1);
 570                                 }
 571                         }
 572                 /* else use the pre-loaded session */
 573
 574                 p=buf;                                  /* header */
 575                 d=p+9;                                  /* data section */
 576                 *(p++)=SSL2_MT_CLIENT_HELLO;            /* type */
 577                 s2n(SSL2_VERSION,p);                    /* version */
 578                 n=j=0;
 579
 580                 n=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),d);
 581                 d+=n;
 582
 583                 if (n == 0)
 584                         {
 585                         SSLerr(SSL_F_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
 586                         return(-1);
 587                         }
 588
 589                 s2n(n,p);                       /* cipher spec num bytes */
 590
 591                 if ((s->session->session_id_length > 0) &&
 592                         (s->session->session_id_length <=
 593                         SSL2_MAX_SSL_SESSION_ID_LENGTH))
 594                         {
 595                         i=s->session->session_id_length;
 596                         s2n(i,p);               /* session id length */
 597                         memcpy(d,s->session->session_id,(unsigned int)i);
 598                         d+=i;
 599                         }
 600                 else
 601                         {
 602                         s2n(0,p);
 603                         }
 604
 605                 s->s2->challenge_length=SSL2_CHALLENGE_LENGTH;
 606                 s2n(SSL2_CHALLENGE_LENGTH,p);           /* challenge length */
 607                 /*challenge id data*/
 608                 RAND_pseudo_bytes(s->s2->challenge,SSL2_CHALLENGE_LENGTH);
 609                 memcpy(d,s->s2->challenge,SSL2_CHALLENGE_LENGTH);
 610                 d+=SSL2_CHALLENGE_LENGTH;
 611
 612                 s->state=SSL2_ST_SEND_CLIENT_HELLO_B;
 613                 s->init_num=d-buf;
 614                 s->init_off=0;
 615                 }
 616         /* SSL2_ST_SEND_CLIENT_HELLO_B */
 617         return(ssl2_do_write(s));
 618         }
 619
 620 static int client_master_key(SSL *s)
 621         {
 622         unsigned char *buf;
 623         unsigned char *p,*d;
 624         int clear,enc,karg,i;
 625         SSL_SESSION *sess;
 626         const EVP_CIPHER *c;
 627         const EVP_MD *md;
 628
 629         buf=(unsigned char *)s->init_buf->data;
 630         if (s->state == SSL2_ST_SEND_CLIENT_MASTER_KEY_A)
 631                 {
 632
 633                 if (!ssl_cipher_get_evp(s->session,&c,&md,NULL))
 634                         {
 635                         ssl2_return_error(s,SSL2_PE_NO_CIPHER);
 636                         SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS);
 637                         return(-1);
 638                         }
 639                 sess=s->session;
 640                 p=buf;
 641                 d=p+10;
 642                 *(p++)=SSL2_MT_CLIENT_MASTER_KEY;/* type */
 643
 644                 i=ssl_put_cipher_by_char(s,sess->cipher,p);
 645                 p+=i;
 646
 647                 /* make key_arg data */
 648                 i=EVP_CIPHER_iv_length(c);
 649                 sess->key_arg_length=i;
 650                 if (i > SSL_MAX_KEY_ARG_LENGTH)
 651                         {
 652                         ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
 653                         SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR);
 654                         return -1;
 655                         }
 656                 if (i > 0) RAND_pseudo_bytes(sess->key_arg,i);
 657
 658                 /* make a master key */
 659                 i=EVP_CIPHER_key_length(c);
 660                 sess->master_key_length=i;
 661                 if (i > 0)
 662                         {
 663                         if (i > sizeof sess->master_key)
 664                                 {
 665                                 ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
 666                                 SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR);
 667                                 return -1;
 668                                 }
 669                         if (RAND_bytes(sess->master_key,i) <= 0)
 670                                 {
 671                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 672                                 return(-1);
 673                                 }
 674                         }
 675
 676                 if (sess->cipher->algorithm2 & SSL2_CF_8_BYTE_ENC)
 677                         enc=8;
 678                 else if (SSL_C_IS_EXPORT(sess->cipher))
 679                         enc=5;
 680                 else
 681                         enc=i;
 682
 683                 if (i < enc)
 684                         {
 685                         ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 686                         SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_CIPHER_TABLE_SRC_ERROR);
 687                         return(-1);
 688                         }
 689                 clear=i-enc;
 690                 s2n(clear,p);
 691                 memcpy(d,sess->master_key,(unsigned int)clear);
 692                 d+=clear;
 693
 694                 enc=ssl_rsa_public_encrypt(sess->sess_cert,enc,
 695                         &(sess->master_key[clear]),d,
 696                         (s->s2->ssl2_rollback)?RSA_SSLV23_PADDING:RSA_PKCS1_PADDING);
 697                 if (enc <= 0)
 698                         {
 699                         ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 700                         SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_PUBLIC_KEY_ENCRYPT_ERROR);
 701                         return(-1);
 702                         }
 703 #ifdef PKCS1_CHECK
 704                 if (s->options & SSL_OP_PKCS1_CHECK_1) d[1]++;
 705                 if (s->options & SSL_OP_PKCS1_CHECK_2)
 706                         sess->master_key[clear]++;
 707 #endif
 708                 s2n(enc,p);
 709                 d+=enc;
 710                 karg=sess->key_arg_length;
 711                 s2n(karg,p); /* key arg size */
 712                 if (karg > sizeof sess->key_arg)
 713                         {
 714                         ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 715                         SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR);
 716                         return -1;
 717                         }
 718                 memcpy(d,sess->key_arg,(unsigned int)karg);
 719                 d+=karg;
 720
 721                 s->state=SSL2_ST_SEND_CLIENT_MASTER_KEY_B;
 722                 s->init_num=d-buf;
 723                 s->init_off=0;
 724                 }
 725
 726         /* SSL2_ST_SEND_CLIENT_MASTER_KEY_B */
 727         return(ssl2_do_write(s));
 728         }
 729
 730 static int client_finished(SSL *s)
 731         {
 732         unsigned char *p;
 733
 734         if (s->state == SSL2_ST_SEND_CLIENT_FINISHED_A)
 735                 {
 736                 p=(unsigned char *)s->init_buf->data;
 737                 *(p++)=SSL2_MT_CLIENT_FINISHED;
 738                 if (s->s2->conn_id_length > sizeof s->s2->conn_id)
 739                         {
 740                         SSLerr(SSL_F_CLIENT_FINISHED, ERR_R_INTERNAL_ERROR);
 741                         return -1;
 742                         }
 743                 memcpy(p,s->s2->conn_id,(unsigned int)s->s2->conn_id_length);
 744
 745                 s->state=SSL2_ST_SEND_CLIENT_FINISHED_B;
 746                 s->init_num=s->s2->conn_id_length+1;
 747                 s->init_off=0;
 748                 }
 749         return(ssl2_do_write(s));
 750         }
 751
 752 /* read the data and then respond */
 753 static int client_certificate(SSL *s)
 754         {
 755         unsigned char *buf;
 756         unsigned char *p,*d;
 757         int i;
 758         unsigned int n;
 759         int cert_ch_len;
 760         unsigned char *cert_ch;
 761
 762         buf=(unsigned char *)s->init_buf->data;
 763
 764         /* We have a cert associated with the SSL, so attach it to
 765          * the session if it does not have one */
 766
 767         if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_A)
 768                 {
 769                 i=ssl2_read(s,(char *)&(buf[s->init_num]),
 770                         SSL2_MAX_CERT_CHALLENGE_LENGTH+1-s->init_num);
 771                 if (i<(SSL2_MIN_CERT_CHALLENGE_LENGTH+1-s->init_num))
 772                         return(ssl2_part_read(s,SSL_F_CLIENT_CERTIFICATE,i));
 773                 s->init_num += i;
 774                 if (s->msg_callback)
 775                         s->msg_callback(0, s->version, 0, buf, (size_t)s->init_num, s, s->msg_callback_arg); /* REQUEST-CERTIFICATE */
 776
 777                 /* type=buf[0]; */
 778                 /* type eq x509 */
 779                 if (buf[1] != SSL2_AT_MD5_WITH_RSA_ENCRYPTION)
 780                         {
 781                         ssl2_return_error(s,SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE);
 782                         SSLerr(SSL_F_CLIENT_CERTIFICATE,SSL_R_BAD_AUTHENTICATION_TYPE);
 783                         return(-1);
 784                         }
 785
 786                 if ((s->cert == NULL) ||
 787                         (s->cert->key->x509 == NULL) ||
 788                         (s->cert->key->privatekey == NULL))
 789                         {
 790                         s->state=SSL2_ST_X509_GET_CLIENT_CERTIFICATE;
 791                         }
 792                 else
 793                         s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_C;
 794                 }
 795
 796         cert_ch = buf + 2;
 797         cert_ch_len = s->init_num - 2;
 798
 799         if (s->state == SSL2_ST_X509_GET_CLIENT_CERTIFICATE)
 800                 {
 801                 X509 *x509=NULL;
 802                 EVP_PKEY *pkey=NULL;
 803
 804                 /* If we get an error we need to
 805                  * ssl->rwstate=SSL_X509_LOOKUP;
 806                  * return(error);
 807                  * We should then be retried when things are ok and we
 808                  * can get a cert or not */
 809
 810                 i=0;
 811                 if (s->ctx->client_cert_cb != NULL)
 812                         {
 813                         i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
 814                         }
 815
 816                 if (i < 0)
 817                         {
 818                         s->rwstate=SSL_X509_LOOKUP;
 819                         return(-1);
 820                         }
 821                 s->rwstate=SSL_NOTHING;
 822
 823                 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
 824                         {
 825                         s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_C;
 826                         if (    !SSL_use_certificate(s,x509) ||
 827                                 !SSL_use_PrivateKey(s,pkey))
 828                                 {
 829                                 i=0;
 830                                 }
 831                         X509_free(x509);
 832                         EVP_PKEY_free(pkey);
 833                         }
 834                 else if (i == 1)
 835                         {
 836                         if (x509 != NULL) X509_free(x509);
 837                         if (pkey != NULL) EVP_PKEY_free(pkey);
 838                         SSLerr(SSL_F_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
 839                         i=0;
 840                         }
 841
 842                 if (i == 0)
 843                         {
 844                         /* We have no client certificate to respond with
 845                          * so send the correct error message back */
 846                         s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_B;
 847                         p=buf;
 848                         *(p++)=SSL2_MT_ERROR;
 849                         s2n(SSL2_PE_NO_CERTIFICATE,p);
 850                         s->init_off=0;
 851                         s->init_num=3;
 852                         /* Write is done at the end */
 853                         }
 854                 }
 855
 856         if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_B)
 857                 {
 858                 return(ssl2_do_write(s));
 859                 }
 860
 861         if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_C)
 862                 {
 863                 EVP_MD_CTX ctx;
 864
 865                 /* ok, now we calculate the checksum
 866                  * do it first so we can reuse buf :-) */
 867                 p=buf;
 868                 EVP_MD_CTX_init(&ctx);
 869                 EVP_SignInit_ex(&ctx,s->ctx->rsa_md5, NULL);
 870                 EVP_SignUpdate(&ctx,s->s2->key_material,
 871                         (unsigned int)s->s2->key_material_length);
 872                 EVP_SignUpdate(&ctx,cert_ch,(unsigned int)cert_ch_len);
 873                 n=i2d_X509(s->session->sess_cert->peer_key->x509,&p);
 874                 EVP_SignUpdate(&ctx,buf,(unsigned int)n);
 875
 876                 p=buf;
 877                 d=p+6;
 878                 *(p++)=SSL2_MT_CLIENT_CERTIFICATE;
 879                 *(p++)=SSL2_CT_X509_CERTIFICATE;
 880                 n=i2d_X509(s->cert->key->x509,&d);
 881                 s2n(n,p);
 882
 883                 if (!EVP_SignFinal(&ctx,d,&n,s->cert->key->privatekey))
 884                         {
 885                         /* this is not good.  If things have failed it
 886                          * means there so something wrong with the key.
 887                          * We will continue with a 0 length signature
 888                          */
 889                         }
 890                 EVP_MD_CTX_cleanup(&ctx);
 891                 s2n(n,p);
 892                 d+=n;
 893
 894                 s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_D;
 895                 s->init_num=d-buf;
 896                 s->init_off=0;
 897                 }
 898         /* if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_D) */
 899         return(ssl2_do_write(s));
 900         }
 901
 902 static int get_server_verify(SSL *s)
 903         {
 904         unsigned char *p;
 905         int i, n, len;
 906
 907         p=(unsigned char *)s->init_buf->data;
 908         if (s->state == SSL2_ST_GET_SERVER_VERIFY_A)
 909                 {
 910                 i=ssl2_read(s,(char *)&(p[s->init_num]),1-s->init_num);
 911                 if (i < (1-s->init_num))
 912                         return(ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i));
 913                 s->init_num += i;
 914
 915                 s->state= SSL2_ST_GET_SERVER_VERIFY_B;
 916                 if (*p != SSL2_MT_SERVER_VERIFY)
 917                         {
 918                         if (p[0] != SSL2_MT_ERROR)
 919                                 {
 920                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 921                                 SSLerr(SSL_F_GET_SERVER_VERIFY,
 922                                         SSL_R_READ_WRONG_PACKET_TYPE);
 923                                 }
 924                         else
 925                                 {
 926                                 SSLerr(SSL_F_GET_SERVER_VERIFY,SSL_R_PEER_ERROR);
 927                                 /* try to read the error message */
 928                                 i=ssl2_read(s,(char *)&(p[s->init_num]),3-s->init_num);
 929                                 return ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i);
 930                                 }
 931                         return(-1);
 932                         }
 933                 }
 934
 935         p=(unsigned char *)s->init_buf->data;
 936         len = 1 + s->s2->challenge_length;
 937         n =  len - s->init_num;
 938         i = ssl2_read(s,(char *)&(p[s->init_num]),n);
 939         if (i < n)
 940                 return(ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i));
 941         if (s->msg_callback)
 942                 s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg); /* SERVER-VERIFY */
 943         p += 1;
 944
 945         if (memcmp(p,s->s2->challenge,(unsigned int)s->s2->challenge_length) != 0)
 946                 {
 947                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 948                 SSLerr(SSL_F_GET_SERVER_VERIFY,SSL_R_CHALLENGE_IS_DIFFERENT);
 949                 return(-1);
 950                 }
 951         return(1);
 952         }
 953
 954 static int get_server_finished(SSL *s)
 955         {
 956         unsigned char *buf;
 957         unsigned char *p;
 958         int i, n, len;
 959
 960         buf=(unsigned char *)s->init_buf->data;
 961         p=buf;
 962         if (s->state == SSL2_ST_GET_SERVER_FINISHED_A)
 963                 {
 964                 i=ssl2_read(s,(char *)&(buf[s->init_num]),1-s->init_num);
 965                 if (i < (1-s->init_num))
 966                         return(ssl2_part_read(s,SSL_F_GET_SERVER_FINISHED,i));
 967                 s->init_num += i;
 968
 969                 if (*p == SSL2_MT_REQUEST_CERTIFICATE)
 970                         {
 971                         s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_A;
 972                         return(1);
 973                         }
 974                 else if (*p != SSL2_MT_SERVER_FINISHED)
 975                         {
 976                         if (p[0] != SSL2_MT_ERROR)
 977                                 {
 978                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 979                                 SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_READ_WRONG_PACKET_TYPE);
 980                                 }
 981                         else
 982                                 {
 983                                 SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_PEER_ERROR);
 984                                 /* try to read the error message */
 985                                 i=ssl2_read(s,(char *)&(p[s->init_num]),3-s->init_num);
 986                                 return ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i);
 987                                 }
 988                         return(-1);
 989                         }
 990                 s->state=SSL2_ST_GET_SERVER_FINISHED_B;
 991                 }
 992
 993         len = 1 + SSL2_SSL_SESSION_ID_LENGTH;
 994         n = len - s->init_num;
 995         i = ssl2_read(s,(char *)&(buf[s->init_num]), n);
 996         if (i < n) /* XXX could be shorter than SSL2_SSL_SESSION_ID_LENGTH, that's the maximum */
 997                 return(ssl2_part_read(s,SSL_F_GET_SERVER_FINISHED,i));
 998         s->init_num += i;
 999         if (s->msg_callback)
1000                 s->msg_callback(0, s->version, 0, buf, (size_t)s->init_num, s, s->msg_callback_arg); /* SERVER-FINISHED */
1001
1002         if (!s->hit) /* new session */
1003                 {
1004                 /* new session-id */
1005                 /* Make sure we were not trying to re-use an old SSL_SESSION
1006                  * or bad things can happen */
1007                 /* ZZZZZZZZZZZZZ */
1008                 s->session->session_id_length=SSL2_SSL_SESSION_ID_LENGTH;
1009                 memcpy(s->session->session_id,p,SSL2_SSL_SESSION_ID_LENGTH);
1010                 }
1011         else
1012                 {
1013                 if (!(s->options & SSL_OP_MICROSOFT_SESS_ID_BUG))
1014                         {
1015                         if ((s->session->session_id_length > sizeof s->session->session_id)
1016                             || (0 != memcmp(buf, s->session->session_id,
1017                                             (unsigned int)s->session->session_id_length)))
1018                                 {
1019                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
1020                                 SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_SSL_SESSION_ID_IS_DIFFERENT);
1021                                 return(-1);
1022                                 }
1023                         }
1024                 }
1025         s->state = SSL_ST_OK;
1026         return(1);
1027         }
1028
1029 /* loads in the certificate from the server */
1030 int ssl2_set_certificate(SSL *s, int type, int len, unsigned char *data)
1031         {
1032         STACK_OF(X509) *sk=NULL;
1033         EVP_PKEY *pkey=NULL;
1034         SESS_CERT *sc=NULL;
1035         int i;
1036         X509 *x509=NULL;
1037         int ret=0;
1038
1039         x509=d2i_X509(NULL,&data,(long)len);
1040         if (x509 == NULL)
1041                 {
1042                 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_X509_LIB);
1043                 goto err;
1044                 }
1045
1046         if ((sk=sk_X509_new_null()) == NULL || !sk_X509_push(sk,x509))
1047                 {
1048                 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_MALLOC_FAILURE);
1049                 goto err;
1050                 }
1051
1052         i=ssl_verify_cert_chain(s,sk);
1053
1054         if ((s->verify_mode != SSL_VERIFY_NONE) && (!i))
1055                 {
1056                 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
1057                 goto err;
1058                 }
1059         ERR_clear_error(); /* but we keep s->verify_result */
1060         s->session->verify_result = s->verify_result;
1061
1062         /* server's cert for this session */
1063         sc=ssl_sess_cert_new();
1064         if (sc == NULL)
1065                 {
1066                 ret= -1;
1067                 goto err;
1068                 }
1069         if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
1070         s->session->sess_cert=sc;
1071
1072         sc->peer_pkeys[SSL_PKEY_RSA_ENC].x509=x509;
1073         sc->peer_key= &(sc->peer_pkeys[SSL_PKEY_RSA_ENC]);
1074
1075         pkey=X509_get_pubkey(x509);
1076         x509=NULL;
1077         if (pkey == NULL)
1078                 {
1079                 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_UNABLE_TO_EXTRACT_PUBLIC_KEY);
1080                 goto err;
1081                 }
1082         if (pkey->type != EVP_PKEY_RSA)
1083                 {
1084                 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_PUBLIC_KEY_NOT_RSA);
1085                 goto err;
1086                 }
1087
1088         if (!ssl_set_peer_cert_type(sc,SSL2_CT_X509_CERTIFICATE))
1089                 goto err;
1090         ret=1;
1091 err:
1092         sk_X509_free(sk);
1093         X509_free(x509);
1094         EVP_PKEY_free(pkey);
1095         return(ret);
1096         }
1097
1098 static int ssl_rsa_public_encrypt(SESS_CERT *sc, int len, unsigned char *from,
1099              unsigned char *to, int padding)
1100         {
1101         EVP_PKEY *pkey=NULL;
1102         int i= -1;
1103
1104         if ((sc == NULL) || (sc->peer_key->x509 == NULL) ||
1105                 ((pkey=X509_get_pubkey(sc->peer_key->x509)) == NULL))
1106                 {
1107                 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,SSL_R_NO_PUBLICKEY);
1108                 return(-1);
1109                 }
1110         if (pkey->type != EVP_PKEY_RSA)
1111                 {
1112                 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,SSL_R_PUBLIC_KEY_IS_NOT_RSA);
1113                 goto end;
1114                 }
1115
1116         /* we have the public key */
1117         i=RSA_public_encrypt(len,from,to,pkey->pkey.rsa,padding);
1118         if (i < 0)
1119                 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,ERR_R_RSA_LIB);
1120 end:
1121         EVP_PKEY_free(pkey);
1122         return(i);
1123         }
1124 #else /* !OPENSSL_NO_SSL2 */
1125
1126 # if PEDANTIC
1127 static void *dummy=&dummy;
1128 # endif
1129
1130 #endif