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                 if (init)
 151                         {
 152                         memcpy((char *)&SSLv2_client_data,(char *)sslv2_base_method(),
 153                                 sizeof(SSL_METHOD));
 154                         SSLv2_client_data.ssl_connect=ssl2_connect;
 155                         SSLv2_client_data.get_ssl_method=ssl2_get_client_method;
 156                         init=0;
 157                         }
 158
 159                 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
 160                 }
 161         return(&SSLv2_client_data);
 162         }
 163
 164 int ssl2_connect(SSL *s)
 165         {
 166         unsigned long l=time(NULL);
 167         BUF_MEM *buf=NULL;
 168         int ret= -1;
 169         void (*cb)(const SSL *ssl,int type,int val)=NULL;
 170         int new_state,state;
 171
 172         RAND_add(&l,sizeof(l),0);
 173         ERR_clear_error();
 174         clear_sys_error();
 175
 176         if (s->info_callback != NULL)
 177                 cb=s->info_callback;
 178         else if (s->ctx->info_callback != NULL)
 179                 cb=s->ctx->info_callback;
 180
 181         /* init things to blank */
 182         s->in_handshake++;
 183         if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
 184
 185         for (;;)
 186                 {
 187                 state=s->state;
 188
 189                 switch (s->state)
 190                         {
 191                 case SSL_ST_BEFORE:
 192                 case SSL_ST_CONNECT:
 193                 case SSL_ST_BEFORE|SSL_ST_CONNECT:
 194                 case SSL_ST_OK|SSL_ST_CONNECT:
 195
 196                         s->server=0;
 197                         if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
 198
 199                         s->version=SSL2_VERSION;
 200                         s->type=SSL_ST_CONNECT;
 201
 202                         buf=s->init_buf;
 203                         if ((buf == NULL) && ((buf=BUF_MEM_new()) == NULL))
 204                                 {
 205                                 ret= -1;
 206                                 goto end;
 207                                 }
 208                         if (!BUF_MEM_grow(buf,
 209                                 SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER))
 210                                 {
 211                                 ret= -1;
 212                                 goto end;
 213                                 }
 214                         s->init_buf=buf;
 215                         s->init_num=0;
 216                         s->state=SSL2_ST_SEND_CLIENT_HELLO_A;
 217                         s->ctx->stats.sess_connect++;
 218                         s->handshake_func=ssl2_connect;
 219                         BREAK;
 220
 221                 case SSL2_ST_SEND_CLIENT_HELLO_A:
 222                 case SSL2_ST_SEND_CLIENT_HELLO_B:
 223                         s->shutdown=0;
 224                         ret=client_hello(s);
 225                         if (ret <= 0) goto end;
 226                         s->init_num=0;
 227                         s->state=SSL2_ST_GET_SERVER_HELLO_A;
 228                         BREAK;
 229
 230                 case SSL2_ST_GET_SERVER_HELLO_A:
 231                 case SSL2_ST_GET_SERVER_HELLO_B:
 232                         ret=get_server_hello(s);
 233                         if (ret <= 0) goto end;
 234                         s->init_num=0;
 235                         if (!s->hit) /* new session */
 236                                 {
 237                                 s->state=SSL2_ST_SEND_CLIENT_MASTER_KEY_A;
 238                                 BREAK;
 239                                 }
 240                         else
 241                                 {
 242                                 s->state=SSL2_ST_CLIENT_START_ENCRYPTION;
 243                                 break;
 244                                 }
 245
 246                 case SSL2_ST_SEND_CLIENT_MASTER_KEY_A:
 247                 case SSL2_ST_SEND_CLIENT_MASTER_KEY_B:
 248                         ret=client_master_key(s);
 249                         if (ret <= 0) goto end;
 250                         s->init_num=0;
 251                         s->state=SSL2_ST_CLIENT_START_ENCRYPTION;
 252                         break;
 253
 254                 case SSL2_ST_CLIENT_START_ENCRYPTION:
 255                         /* Ok, we now have all the stuff needed to
 256                          * start encrypting, so lets fire it up :-) */
 257                         if (!ssl2_enc_init(s,1))
 258                                 {
 259                                 ret= -1;
 260                                 goto end;
 261                                 }
 262                         s->s2->clear_text=0;
 263                         s->state=SSL2_ST_SEND_CLIENT_FINISHED_A;
 264                         break;
 265
 266                 case SSL2_ST_SEND_CLIENT_FINISHED_A:
 267                 case SSL2_ST_SEND_CLIENT_FINISHED_B:
 268                         ret=client_finished(s);
 269                         if (ret <= 0) goto end;
 270                         s->init_num=0;
 271                         s->state=SSL2_ST_GET_SERVER_VERIFY_A;
 272                         break;
 273
 274                 case SSL2_ST_GET_SERVER_VERIFY_A:
 275                 case SSL2_ST_GET_SERVER_VERIFY_B:
 276                         ret=get_server_verify(s);
 277                         if (ret <= 0) goto end;
 278                         s->init_num=0;
 279                         s->state=SSL2_ST_GET_SERVER_FINISHED_A;
 280                         break;
 281
 282                 case SSL2_ST_GET_SERVER_FINISHED_A:
 283                 case SSL2_ST_GET_SERVER_FINISHED_B:
 284                         ret=get_server_finished(s);
 285                         if (ret <= 0) goto end;
 286                         break;
 287
 288                 case SSL2_ST_SEND_CLIENT_CERTIFICATE_A:
 289                 case SSL2_ST_SEND_CLIENT_CERTIFICATE_B:
 290                 case SSL2_ST_SEND_CLIENT_CERTIFICATE_C:
 291                 case SSL2_ST_SEND_CLIENT_CERTIFICATE_D:
 292                 case SSL2_ST_X509_GET_CLIENT_CERTIFICATE:
 293                         ret=client_certificate(s);
 294                         if (ret <= 0) goto end;
 295                         s->init_num=0;
 296                         s->state=SSL2_ST_GET_SERVER_FINISHED_A;
 297                         break;
 298
 299                 case SSL_ST_OK:
 300                         if (s->init_buf != NULL)
 301                                 {
 302                                 BUF_MEM_free(s->init_buf);
 303                                 s->init_buf=NULL;
 304                                 }
 305                         s->init_num=0;
 306                 /*      ERR_clear_error();*/
 307
 308                         /* If we want to cache session-ids in the client
 309                          * and we successfully add the session-id to the
 310                          * cache, and there is a callback, then pass it out.
 311                          * 26/11/96 - eay - only add if not a re-used session.
 312                          */
 313
 314                         ssl_update_cache(s,SSL_SESS_CACHE_CLIENT);
 315                         if (s->hit) s->ctx->stats.sess_hit++;
 316
 317                         ret=1;
 318                         /* s->server=0; */
 319                         s->ctx->stats.sess_connect_good++;
 320
 321                         if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
 322
 323                         goto end;
 324                         /* break; */
 325                 default:
 326                         SSLerr(SSL_F_SSL2_CONNECT,SSL_R_UNKNOWN_STATE);
 327                         return(-1);
 328                         /* break; */
 329                         }
 330
 331                 if ((cb != NULL) && (s->state != state))
 332                         {
 333                         new_state=s->state;
 334                         s->state=state;
 335                         cb(s,SSL_CB_CONNECT_LOOP,1);
 336                         s->state=new_state;
 337                         }
 338                 }
 339 end:
 340         s->in_handshake--;
 341         if (cb != NULL)
 342                 cb(s,SSL_CB_CONNECT_EXIT,ret);
 343         return(ret);
 344         }
 345
 346 static int get_server_hello(SSL *s)
 347         {
 348         unsigned char *buf;
 349         unsigned char *p;
 350         int i,j;
 351         unsigned long len;
 352         STACK_OF(SSL_CIPHER) *sk=NULL,*cl, *prio, *allow;
 353
 354         buf=(unsigned char *)s->init_buf->data;
 355         p=buf;
 356         if (s->state == SSL2_ST_GET_SERVER_HELLO_A)
 357                 {
 358                 i=ssl2_read(s,(char *)&(buf[s->init_num]),11-s->init_num);
 359                 if (i < (11-s->init_num))
 360                         return(ssl2_part_read(s,SSL_F_GET_SERVER_HELLO,i));
 361                 s->init_num = 11;
 362
 363                 if (*(p++) != SSL2_MT_SERVER_HELLO)
 364                         {
 365                         if (p[-1] != SSL2_MT_ERROR)
 366                                 {
 367                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 368                                 SSLerr(SSL_F_GET_SERVER_HELLO,
 369                                         SSL_R_READ_WRONG_PACKET_TYPE);
 370                                 }
 371                         else
 372                                 SSLerr(SSL_F_GET_SERVER_HELLO,
 373                                         SSL_R_PEER_ERROR);
 374                         return(-1);
 375                         }
 376 #ifdef __APPLE_CC__
 377                 /* The Rhapsody 5.5 (a.k.a. MacOS X) compiler bug
 378                  * workaround. <appro@fy.chalmers.se> */
 379                 s->hit=(i=*(p++))?1:0;
 380 #else
 381                 s->hit=(*(p++))?1:0;
 382 #endif
 383                 s->s2->tmp.cert_type= *(p++);
 384                 n2s(p,i);
 385                 if (i < s->version) s->version=i;
 386                 n2s(p,i); s->s2->tmp.cert_length=i;
 387                 n2s(p,i); s->s2->tmp.csl=i;
 388                 n2s(p,i); s->s2->tmp.conn_id_length=i;
 389                 s->state=SSL2_ST_GET_SERVER_HELLO_B;
 390                 }
 391
 392         /* SSL2_ST_GET_SERVER_HELLO_B */
 393         len = 11 + (unsigned long)s->s2->tmp.cert_length + (unsigned long)s->s2->tmp.csl + (unsigned long)s->s2->tmp.conn_id_length;
 394         if (len > SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER)
 395                 {
 396                 SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_MESSAGE_TOO_LONG);
 397                 return -1;
 398                 }
 399         j = (int)len - s->init_num;
 400         i = ssl2_read(s,(char *)&(buf[s->init_num]),j);
 401         if (i != j) return(ssl2_part_read(s,SSL_F_GET_SERVER_HELLO,i));
 402         if (s->msg_callback)
 403                 s->msg_callback(0, s->version, 0, buf, (size_t)len, s, s->msg_callback_arg); /* SERVER-HELLO */
 404
 405         /* things are looking good */
 406
 407         p = buf + 11;
 408         if (s->hit)
 409                 {
 410                 if (s->s2->tmp.cert_length != 0)
 411                         {
 412                         SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CERT_LENGTH_NOT_ZERO);
 413                         return(-1);
 414                         }
 415                 if (s->s2->tmp.cert_type != 0)
 416                         {
 417                         if (!(s->options &
 418                                 SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG))
 419                                 {
 420                                 SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CERT_TYPE_NOT_ZERO);
 421                                 return(-1);
 422                                 }
 423                         }
 424                 if (s->s2->tmp.csl != 0)
 425                         {
 426                         SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_REUSE_CIPHER_LIST_NOT_ZERO);
 427                         return(-1);
 428                         }
 429                 }
 430         else
 431                 {
 432 #ifdef undef
 433                 /* very bad */
 434                 memset(s->session->session_id,0,
 435                         SSL_MAX_SSL_SESSION_ID_LENGTH_IN_BYTES);
 436                 s->session->session_id_length=0;
 437                 */
 438 #endif
 439
 440                 /* we need to do this in case we were trying to reuse a
 441                  * client session but others are already reusing it.
 442                  * If this was a new 'blank' session ID, the session-id
 443                  * length will still be 0 */
 444                 if (s->session->session_id_length > 0)
 445                         {
 446                         if (!ssl_get_new_session(s,0))
 447                                 {
 448                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 449                                 return(-1);
 450                                 }
 451                         }
 452
 453                 if (ssl2_set_certificate(s,s->s2->tmp.cert_type,
 454                         s->s2->tmp.cert_length,p) <= 0)
 455                         {
 456                         ssl2_return_error(s,SSL2_PE_BAD_CERTIFICATE);
 457                         return(-1);
 458                         }
 459                 p+=s->s2->tmp.cert_length;
 460
 461                 if (s->s2->tmp.csl == 0)
 462                         {
 463                         ssl2_return_error(s,SSL2_PE_NO_CIPHER);
 464                         SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_NO_CIPHER_LIST);
 465                         return(-1);
 466                         }
 467
 468                 /* We have just received a list of ciphers back from the
 469                  * server.  We need to get the ones that match, then select
 470                  * the one we want the most :-). */
 471
 472                 /* load the ciphers */
 473                 sk=ssl_bytes_to_cipher_list(s,p,s->s2->tmp.csl,
 474                                             &s->session->ciphers);
 475                 p+=s->s2->tmp.csl;
 476                 if (sk == NULL)
 477                         {
 478                         ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 479                         SSLerr(SSL_F_GET_SERVER_HELLO,ERR_R_MALLOC_FAILURE);
 480                         return(-1);
 481                         }
 482
 483                 sk_SSL_CIPHER_set_cmp_func(sk,ssl_cipher_ptr_id_cmp);
 484
 485                 /* get the array of ciphers we will accept */
 486                 cl=SSL_get_ciphers(s);
 487                 sk_SSL_CIPHER_set_cmp_func(cl,ssl_cipher_ptr_id_cmp);
 488
 489                 /*
 490                  * If server preference flag set, choose the first
 491                  * (highest priority) cipher the server sends, otherwise
 492                  * client preference has priority.
 493                  */
 494                 if (s->options & SSL_OP_CIPHER_SERVER_PREFERENCE)
 495                     {
 496                     prio = sk;
 497                     allow = cl;
 498                     }
 499                 else
 500                     {
 501                     prio = cl;
 502                     allow = sk;
 503                     }
 504                 /* In theory we could have ciphers sent back that we
 505                  * don't want to use but that does not matter since we
 506                  * will check against the list we originally sent and
 507                  * for performance reasons we should not bother to match
 508                  * the two lists up just to check. */
 509                 for (i=0; i<sk_SSL_CIPHER_num(prio); i++)
 510                         {
 511                         if (sk_SSL_CIPHER_find(allow,
 512                                              sk_SSL_CIPHER_value(prio,i)) >= 0)
 513                                 break;
 514                         }
 515
 516                 if (i >= sk_SSL_CIPHER_num(prio))
 517                         {
 518                         ssl2_return_error(s,SSL2_PE_NO_CIPHER);
 519                         SSLerr(SSL_F_GET_SERVER_HELLO,SSL_R_NO_CIPHER_MATCH);
 520                         return(-1);
 521                         }
 522                 s->session->cipher=sk_SSL_CIPHER_value(prio,i);
 523
 524
 525                 if (s->session->peer != NULL) /* can't happen*/
 526                         {
 527                         ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
 528                         SSLerr(SSL_F_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
 529                         return(-1);
 530                         }
 531
 532                 s->session->peer = s->session->sess_cert->peer_key->x509;
 533                 /* peer_key->x509 has been set by ssl2_set_certificate. */
 534                 CRYPTO_add(&s->session->peer->references, 1, CRYPTO_LOCK_X509);
 535                 }
 536
 537         if (s->session->peer != s->session->sess_cert->peer_key->x509)
 538                 /* can't happen */
 539                 {
 540                 ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
 541                 SSLerr(SSL_F_GET_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
 542                 return(-1);
 543                 }
 544
 545         s->s2->conn_id_length=s->s2->tmp.conn_id_length;
 546         if (s->s2->conn_id_length > sizeof s->s2->conn_id)
 547                 {
 548                 ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
 549                 SSLerr(SSL_F_GET_SERVER_HELLO, SSL_R_SSL2_CONNECTION_ID_TOO_LONG);
 550                 return -1;
 551                 }
 552         memcpy(s->s2->conn_id,p,s->s2->tmp.conn_id_length);
 553         return(1);
 554         }
 555
 556 static int client_hello(SSL *s)
 557         {
 558         unsigned char *buf;
 559         unsigned char *p,*d;
 560 /*      CIPHER **cipher;*/
 561         int i,n,j;
 562
 563         buf=(unsigned char *)s->init_buf->data;
 564         if (s->state == SSL2_ST_SEND_CLIENT_HELLO_A)
 565                 {
 566                 if ((s->session == NULL) ||
 567                         (s->session->ssl_version != s->version))
 568                         {
 569                         if (!ssl_get_new_session(s,0))
 570                                 {
 571                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 572                                 return(-1);
 573                                 }
 574                         }
 575                 /* else use the pre-loaded session */
 576
 577                 p=buf;                                  /* header */
 578                 d=p+9;                                  /* data section */
 579                 *(p++)=SSL2_MT_CLIENT_HELLO;            /* type */
 580                 s2n(SSL2_VERSION,p);                    /* version */
 581                 n=j=0;
 582
 583                 n=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),d);
 584                 d+=n;
 585
 586                 if (n == 0)
 587                         {
 588                         SSLerr(SSL_F_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
 589                         return(-1);
 590                         }
 591
 592                 s2n(n,p);                       /* cipher spec num bytes */
 593
 594                 if ((s->session->session_id_length > 0) &&
 595                         (s->session->session_id_length <=
 596                         SSL2_MAX_SSL_SESSION_ID_LENGTH))
 597                         {
 598                         i=s->session->session_id_length;
 599                         s2n(i,p);               /* session id length */
 600                         memcpy(d,s->session->session_id,(unsigned int)i);
 601                         d+=i;
 602                         }
 603                 else
 604                         {
 605                         s2n(0,p);
 606                         }
 607
 608                 s->s2->challenge_length=SSL2_CHALLENGE_LENGTH;
 609                 s2n(SSL2_CHALLENGE_LENGTH,p);           /* challenge length */
 610                 /*challenge id data*/
 611                 RAND_pseudo_bytes(s->s2->challenge,SSL2_CHALLENGE_LENGTH);
 612                 memcpy(d,s->s2->challenge,SSL2_CHALLENGE_LENGTH);
 613                 d+=SSL2_CHALLENGE_LENGTH;
 614
 615                 s->state=SSL2_ST_SEND_CLIENT_HELLO_B;
 616                 s->init_num=d-buf;
 617                 s->init_off=0;
 618                 }
 619         /* SSL2_ST_SEND_CLIENT_HELLO_B */
 620         return(ssl2_do_write(s));
 621         }
 622
 623 static int client_master_key(SSL *s)
 624         {
 625         unsigned char *buf;
 626         unsigned char *p,*d;
 627         int clear,enc,karg,i;
 628         SSL_SESSION *sess;
 629         const EVP_CIPHER *c;
 630         const EVP_MD *md;
 631
 632         buf=(unsigned char *)s->init_buf->data;
 633         if (s->state == SSL2_ST_SEND_CLIENT_MASTER_KEY_A)
 634                 {
 635
 636                 if (!ssl_cipher_get_evp(s->session,&c,&md,NULL))
 637                         {
 638                         ssl2_return_error(s,SSL2_PE_NO_CIPHER);
 639                         SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_PROBLEMS_MAPPING_CIPHER_FUNCTIONS);
 640                         return(-1);
 641                         }
 642                 sess=s->session;
 643                 p=buf;
 644                 d=p+10;
 645                 *(p++)=SSL2_MT_CLIENT_MASTER_KEY;/* type */
 646
 647                 i=ssl_put_cipher_by_char(s,sess->cipher,p);
 648                 p+=i;
 649
 650                 /* make key_arg data */
 651                 i=EVP_CIPHER_iv_length(c);
 652                 sess->key_arg_length=i;
 653                 if (i > SSL_MAX_KEY_ARG_LENGTH)
 654                         {
 655                         ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
 656                         SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR);
 657                         return -1;
 658                         }
 659                 if (i > 0) RAND_pseudo_bytes(sess->key_arg,i);
 660
 661                 /* make a master key */
 662                 i=EVP_CIPHER_key_length(c);
 663                 sess->master_key_length=i;
 664                 if (i > 0)
 665                         {
 666                         if (i > sizeof sess->master_key)
 667                                 {
 668                                 ssl2_return_error(s, SSL2_PE_UNDEFINED_ERROR);
 669                                 SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR);
 670                                 return -1;
 671                                 }
 672                         if (RAND_bytes(sess->master_key,i) <= 0)
 673                                 {
 674                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 675                                 return(-1);
 676                                 }
 677                         }
 678
 679                 if (sess->cipher->algorithm2 & SSL2_CF_8_BYTE_ENC)
 680                         enc=8;
 681                 else if (SSL_C_IS_EXPORT(sess->cipher))
 682                         enc=5;
 683                 else
 684                         enc=i;
 685
 686                 if (i < enc)
 687                         {
 688                         ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 689                         SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_CIPHER_TABLE_SRC_ERROR);
 690                         return(-1);
 691                         }
 692                 clear=i-enc;
 693                 s2n(clear,p);
 694                 memcpy(d,sess->master_key,(unsigned int)clear);
 695                 d+=clear;
 696
 697                 enc=ssl_rsa_public_encrypt(sess->sess_cert,enc,
 698                         &(sess->master_key[clear]),d,
 699                         (s->s2->ssl2_rollback)?RSA_SSLV23_PADDING:RSA_PKCS1_PADDING);
 700                 if (enc <= 0)
 701                         {
 702                         ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 703                         SSLerr(SSL_F_CLIENT_MASTER_KEY,SSL_R_PUBLIC_KEY_ENCRYPT_ERROR);
 704                         return(-1);
 705                         }
 706 #ifdef PKCS1_CHECK
 707                 if (s->options & SSL_OP_PKCS1_CHECK_1) d[1]++;
 708                 if (s->options & SSL_OP_PKCS1_CHECK_2)
 709                         sess->master_key[clear]++;
 710 #endif
 711                 s2n(enc,p);
 712                 d+=enc;
 713                 karg=sess->key_arg_length;
 714                 s2n(karg,p); /* key arg size */
 715                 if (karg > sizeof sess->key_arg)
 716                         {
 717                         ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 718                         SSLerr(SSL_F_CLIENT_MASTER_KEY, ERR_R_INTERNAL_ERROR);
 719                         return -1;
 720                         }
 721                 memcpy(d,sess->key_arg,(unsigned int)karg);
 722                 d+=karg;
 723
 724                 s->state=SSL2_ST_SEND_CLIENT_MASTER_KEY_B;
 725                 s->init_num=d-buf;
 726                 s->init_off=0;
 727                 }
 728
 729         /* SSL2_ST_SEND_CLIENT_MASTER_KEY_B */
 730         return(ssl2_do_write(s));
 731         }
 732
 733 static int client_finished(SSL *s)
 734         {
 735         unsigned char *p;
 736
 737         if (s->state == SSL2_ST_SEND_CLIENT_FINISHED_A)
 738                 {
 739                 p=(unsigned char *)s->init_buf->data;
 740                 *(p++)=SSL2_MT_CLIENT_FINISHED;
 741                 if (s->s2->conn_id_length > sizeof s->s2->conn_id)
 742                         {
 743                         SSLerr(SSL_F_CLIENT_FINISHED, ERR_R_INTERNAL_ERROR);
 744                         return -1;
 745                         }
 746                 memcpy(p,s->s2->conn_id,(unsigned int)s->s2->conn_id_length);
 747
 748                 s->state=SSL2_ST_SEND_CLIENT_FINISHED_B;
 749                 s->init_num=s->s2->conn_id_length+1;
 750                 s->init_off=0;
 751                 }
 752         return(ssl2_do_write(s));
 753         }
 754
 755 /* read the data and then respond */
 756 static int client_certificate(SSL *s)
 757         {
 758         unsigned char *buf;
 759         unsigned char *p,*d;
 760         int i;
 761         unsigned int n;
 762         int cert_ch_len;
 763         unsigned char *cert_ch;
 764
 765         buf=(unsigned char *)s->init_buf->data;
 766
 767         /* We have a cert associated with the SSL, so attach it to
 768          * the session if it does not have one */
 769
 770         if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_A)
 771                 {
 772                 i=ssl2_read(s,(char *)&(buf[s->init_num]),
 773                         SSL2_MAX_CERT_CHALLENGE_LENGTH+2-s->init_num);
 774                 if (i<(SSL2_MIN_CERT_CHALLENGE_LENGTH+2-s->init_num))
 775                         return(ssl2_part_read(s,SSL_F_CLIENT_CERTIFICATE,i));
 776                 s->init_num += i;
 777                 if (s->msg_callback)
 778                         s->msg_callback(0, s->version, 0, buf, (size_t)s->init_num, s, s->msg_callback_arg); /* REQUEST-CERTIFICATE */
 779
 780                 /* type=buf[0]; */
 781                 /* type eq x509 */
 782                 if (buf[1] != SSL2_AT_MD5_WITH_RSA_ENCRYPTION)
 783                         {
 784                         ssl2_return_error(s,SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE);
 785                         SSLerr(SSL_F_CLIENT_CERTIFICATE,SSL_R_BAD_AUTHENTICATION_TYPE);
 786                         return(-1);
 787                         }
 788
 789                 if ((s->cert == NULL) ||
 790                         (s->cert->key->x509 == NULL) ||
 791                         (s->cert->key->privatekey == NULL))
 792                         {
 793                         s->state=SSL2_ST_X509_GET_CLIENT_CERTIFICATE;
 794                         }
 795                 else
 796                         s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_C;
 797                 }
 798
 799         cert_ch = buf + 2;
 800         cert_ch_len = s->init_num - 2;
 801
 802         if (s->state == SSL2_ST_X509_GET_CLIENT_CERTIFICATE)
 803                 {
 804                 X509 *x509=NULL;
 805                 EVP_PKEY *pkey=NULL;
 806
 807                 /* If we get an error we need to
 808                  * ssl->rwstate=SSL_X509_LOOKUP;
 809                  * return(error);
 810                  * We should then be retried when things are ok and we
 811                  * can get a cert or not */
 812
 813                 i=0;
 814                 if (s->ctx->client_cert_cb != NULL)
 815                         {
 816                         i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
 817                         }
 818
 819                 if (i < 0)
 820                         {
 821                         s->rwstate=SSL_X509_LOOKUP;
 822                         return(-1);
 823                         }
 824                 s->rwstate=SSL_NOTHING;
 825
 826                 if ((i == 1) && (pkey != NULL) && (x509 != NULL))
 827                         {
 828                         s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_C;
 829                         if (    !SSL_use_certificate(s,x509) ||
 830                                 !SSL_use_PrivateKey(s,pkey))
 831                                 {
 832                                 i=0;
 833                                 }
 834                         X509_free(x509);
 835                         EVP_PKEY_free(pkey);
 836                         }
 837                 else if (i == 1)
 838                         {
 839                         if (x509 != NULL) X509_free(x509);
 840                         if (pkey != NULL) EVP_PKEY_free(pkey);
 841                         SSLerr(SSL_F_CLIENT_CERTIFICATE,SSL_R_BAD_DATA_RETURNED_BY_CALLBACK);
 842                         i=0;
 843                         }
 844
 845                 if (i == 0)
 846                         {
 847                         /* We have no client certificate to respond with
 848                          * so send the correct error message back */
 849                         s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_B;
 850                         p=buf;
 851                         *(p++)=SSL2_MT_ERROR;
 852                         s2n(SSL2_PE_NO_CERTIFICATE,p);
 853                         s->init_off=0;
 854                         s->init_num=3;
 855                         /* Write is done at the end */
 856                         }
 857                 }
 858
 859         if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_B)
 860                 {
 861                 return(ssl2_do_write(s));
 862                 }
 863
 864         if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_C)
 865                 {
 866                 EVP_MD_CTX ctx;
 867
 868                 /* ok, now we calculate the checksum
 869                  * do it first so we can reuse buf :-) */
 870                 p=buf;
 871                 EVP_MD_CTX_init(&ctx);
 872                 EVP_SignInit_ex(&ctx,s->ctx->rsa_md5, NULL);
 873                 EVP_SignUpdate(&ctx,s->s2->key_material,
 874                                s->s2->key_material_length);
 875                 EVP_SignUpdate(&ctx,cert_ch,(unsigned int)cert_ch_len);
 876                 n=i2d_X509(s->session->sess_cert->peer_key->x509,&p);
 877                 EVP_SignUpdate(&ctx,buf,(unsigned int)n);
 878
 879                 p=buf;
 880                 d=p+6;
 881                 *(p++)=SSL2_MT_CLIENT_CERTIFICATE;
 882                 *(p++)=SSL2_CT_X509_CERTIFICATE;
 883                 n=i2d_X509(s->cert->key->x509,&d);
 884                 s2n(n,p);
 885
 886                 if (!EVP_SignFinal(&ctx,d,&n,s->cert->key->privatekey))
 887                         {
 888                         /* this is not good.  If things have failed it
 889                          * means there so something wrong with the key.
 890                          * We will continue with a 0 length signature
 891                          */
 892                         }
 893                 EVP_MD_CTX_cleanup(&ctx);
 894                 s2n(n,p);
 895                 d+=n;
 896
 897                 s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_D;
 898                 s->init_num=d-buf;
 899                 s->init_off=0;
 900                 }
 901         /* if (s->state == SSL2_ST_SEND_CLIENT_CERTIFICATE_D) */
 902         return(ssl2_do_write(s));
 903         }
 904
 905 static int get_server_verify(SSL *s)
 906         {
 907         unsigned char *p;
 908         int i, n, len;
 909
 910         p=(unsigned char *)s->init_buf->data;
 911         if (s->state == SSL2_ST_GET_SERVER_VERIFY_A)
 912                 {
 913                 i=ssl2_read(s,(char *)&(p[s->init_num]),1-s->init_num);
 914                 if (i < (1-s->init_num))
 915                         return(ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i));
 916                 s->init_num += i;
 917
 918                 s->state= SSL2_ST_GET_SERVER_VERIFY_B;
 919                 if (*p != SSL2_MT_SERVER_VERIFY)
 920                         {
 921                         if (p[0] != SSL2_MT_ERROR)
 922                                 {
 923                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 924                                 SSLerr(SSL_F_GET_SERVER_VERIFY,
 925                                         SSL_R_READ_WRONG_PACKET_TYPE);
 926                                 }
 927                         else
 928                                 {
 929                                 SSLerr(SSL_F_GET_SERVER_VERIFY,SSL_R_PEER_ERROR);
 930                                 /* try to read the error message */
 931                                 i=ssl2_read(s,(char *)&(p[s->init_num]),3-s->init_num);
 932                                 return ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i);
 933                                 }
 934                         return(-1);
 935                         }
 936                 }
 937
 938         p=(unsigned char *)s->init_buf->data;
 939         len = 1 + s->s2->challenge_length;
 940         n =  len - s->init_num;
 941         i = ssl2_read(s,(char *)&(p[s->init_num]),n);
 942         if (i < n)
 943                 return(ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i));
 944         if (s->msg_callback)
 945                 s->msg_callback(0, s->version, 0, p, len, s, s->msg_callback_arg); /* SERVER-VERIFY */
 946         p += 1;
 947
 948         if (memcmp(p,s->s2->challenge,s->s2->challenge_length) != 0)
 949                 {
 950                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 951                 SSLerr(SSL_F_GET_SERVER_VERIFY,SSL_R_CHALLENGE_IS_DIFFERENT);
 952                 return(-1);
 953                 }
 954         return(1);
 955         }
 956
 957 static int get_server_finished(SSL *s)
 958         {
 959         unsigned char *buf;
 960         unsigned char *p;
 961         int i, n, len;
 962
 963         buf=(unsigned char *)s->init_buf->data;
 964         p=buf;
 965         if (s->state == SSL2_ST_GET_SERVER_FINISHED_A)
 966                 {
 967                 i=ssl2_read(s,(char *)&(buf[s->init_num]),1-s->init_num);
 968                 if (i < (1-s->init_num))
 969                         return(ssl2_part_read(s,SSL_F_GET_SERVER_FINISHED,i));
 970                 s->init_num += i;
 971
 972                 if (*p == SSL2_MT_REQUEST_CERTIFICATE)
 973                         {
 974                         s->state=SSL2_ST_SEND_CLIENT_CERTIFICATE_A;
 975                         return(1);
 976                         }
 977                 else if (*p != SSL2_MT_SERVER_FINISHED)
 978                         {
 979                         if (p[0] != SSL2_MT_ERROR)
 980                                 {
 981                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
 982                                 SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_READ_WRONG_PACKET_TYPE);
 983                                 }
 984                         else
 985                                 {
 986                                 SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_PEER_ERROR);
 987                                 /* try to read the error message */
 988                                 i=ssl2_read(s,(char *)&(p[s->init_num]),3-s->init_num);
 989                                 return ssl2_part_read(s,SSL_F_GET_SERVER_VERIFY,i);
 990                                 }
 991                         return(-1);
 992                         }
 993                 s->state=SSL2_ST_GET_SERVER_FINISHED_B;
 994                 }
 995
 996         len = 1 + SSL2_SSL_SESSION_ID_LENGTH;
 997         n = len - s->init_num;
 998         i = ssl2_read(s,(char *)&(buf[s->init_num]), n);
 999         if (i < n) /* XXX could be shorter than SSL2_SSL_SESSION_ID_LENGTH, that's the maximum */
1000                 return(ssl2_part_read(s,SSL_F_GET_SERVER_FINISHED,i));
1001         s->init_num += i;
1002         if (s->msg_callback)
1003                 s->msg_callback(0, s->version, 0, buf, (size_t)s->init_num, s, s->msg_callback_arg); /* SERVER-FINISHED */
1004
1005         if (!s->hit) /* new session */
1006                 {
1007                 /* new session-id */
1008                 /* Make sure we were not trying to re-use an old SSL_SESSION
1009                  * or bad things can happen */
1010                 /* ZZZZZZZZZZZZZ */
1011                 s->session->session_id_length=SSL2_SSL_SESSION_ID_LENGTH;
1012                 memcpy(s->session->session_id,p,SSL2_SSL_SESSION_ID_LENGTH);
1013                 }
1014         else
1015                 {
1016                 if (!(s->options & SSL_OP_MICROSOFT_SESS_ID_BUG))
1017                         {
1018                         if ((s->session->session_id_length > sizeof s->session->session_id)
1019                             || (0 != memcmp(buf, s->session->session_id,
1020                                             (unsigned int)s->session->session_id_length)))
1021                                 {
1022                                 ssl2_return_error(s,SSL2_PE_UNDEFINED_ERROR);
1023                                 SSLerr(SSL_F_GET_SERVER_FINISHED,SSL_R_SSL_SESSION_ID_IS_DIFFERENT);
1024                                 return(-1);
1025                                 }
1026                         }
1027                 }
1028         s->state = SSL_ST_OK;
1029         return(1);
1030         }
1031
1032 /* loads in the certificate from the server */
1033 int ssl2_set_certificate(SSL *s, int type, int len, unsigned char *data)
1034         {
1035         STACK_OF(X509) *sk=NULL;
1036         EVP_PKEY *pkey=NULL;
1037         SESS_CERT *sc=NULL;
1038         int i;
1039         X509 *x509=NULL;
1040         int ret=0;
1041
1042         x509=d2i_X509(NULL,&data,(long)len);
1043         if (x509 == NULL)
1044                 {
1045                 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_X509_LIB);
1046                 goto err;
1047                 }
1048
1049         if ((sk=sk_X509_new_null()) == NULL || !sk_X509_push(sk,x509))
1050                 {
1051                 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,ERR_R_MALLOC_FAILURE);
1052                 goto err;
1053                 }
1054
1055         i=ssl_verify_cert_chain(s,sk);
1056
1057         if ((s->verify_mode != SSL_VERIFY_NONE) && (!i))
1058                 {
1059                 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
1060                 goto err;
1061                 }
1062         ERR_clear_error(); /* but we keep s->verify_result */
1063         s->session->verify_result = s->verify_result;
1064
1065         /* server's cert for this session */
1066         sc=ssl_sess_cert_new();
1067         if (sc == NULL)
1068                 {
1069                 ret= -1;
1070                 goto err;
1071                 }
1072         if (s->session->sess_cert) ssl_sess_cert_free(s->session->sess_cert);
1073         s->session->sess_cert=sc;
1074
1075         sc->peer_pkeys[SSL_PKEY_RSA_ENC].x509=x509;
1076         sc->peer_key= &(sc->peer_pkeys[SSL_PKEY_RSA_ENC]);
1077
1078         pkey=X509_get_pubkey(x509);
1079         x509=NULL;
1080         if (pkey == NULL)
1081                 {
1082                 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_UNABLE_TO_EXTRACT_PUBLIC_KEY);
1083                 goto err;
1084                 }
1085         if (pkey->type != EVP_PKEY_RSA)
1086                 {
1087                 SSLerr(SSL_F_SSL2_SET_CERTIFICATE,SSL_R_PUBLIC_KEY_NOT_RSA);
1088                 goto err;
1089                 }
1090
1091         if (!ssl_set_peer_cert_type(sc,SSL2_CT_X509_CERTIFICATE))
1092                 goto err;
1093         ret=1;
1094 err:
1095         sk_X509_free(sk);
1096         X509_free(x509);
1097         EVP_PKEY_free(pkey);
1098         return(ret);
1099         }
1100
1101 static int ssl_rsa_public_encrypt(SESS_CERT *sc, int len, unsigned char *from,
1102              unsigned char *to, int padding)
1103         {
1104         EVP_PKEY *pkey=NULL;
1105         int i= -1;
1106
1107         if ((sc == NULL) || (sc->peer_key->x509 == NULL) ||
1108                 ((pkey=X509_get_pubkey(sc->peer_key->x509)) == NULL))
1109                 {
1110                 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,SSL_R_NO_PUBLICKEY);
1111                 return(-1);
1112                 }
1113         if (pkey->type != EVP_PKEY_RSA)
1114                 {
1115                 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,SSL_R_PUBLIC_KEY_IS_NOT_RSA);
1116                 goto end;
1117                 }
1118
1119         /* we have the public key */
1120         i=RSA_public_encrypt(len,from,to,pkey->pkey.rsa,padding);
1121         if (i < 0)
1122                 SSLerr(SSL_F_SSL_RSA_PUBLIC_ENCRYPT,ERR_R_RSA_LIB);
1123 end:
1124         EVP_PKEY_free(pkey);
1125         return(i);
1126         }
1127 #else /* !OPENSSL_NO_SSL2 */
1128
1129 # if PEDANTIC
1130 static void *dummy=&dummy;
1131 # endif
1132
1133 #endif