ssl/ssltest.c

   1 /* ssl/ssltest.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) 1998-2000 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 #define _XOPEN_SOURCE 600       /* Or gethostname won't be declared properly
 113                                    on Linux and GNU platforms. */
 114 #define _XOPEN_SOURCE_EXTENDED  1 /* Or gethostname won't be declared properly
 115                                    on Compaq platforms (at least with DEC C).
 116                                 */
 117
 118 #include <assert.h>
 119 #include <errno.h>
 120 #include <limits.h>
 121 #include <stdio.h>
 122 #include <stdlib.h>
 123 #include <string.h>
 124 #include <time.h>
 125
 126 #include "e_os.h"
 127
 128 #include <openssl/bio.h>
 129 #include <openssl/crypto.h>
 130 #include <openssl/evp.h>
 131 #include <openssl/x509.h>
 132 #include <openssl/ssl.h>
 133 #include <openssl/engine.h>
 134 #include <openssl/err.h>
 135 #include <openssl/rand.h>
 136 #ifdef OPENSSL_SYS_WINDOWS
 137 #include <winsock.h>
 138 #include "../crypto/bio/bss_file.c"
 139 #else
 140 #include OPENSSL_UNISTD
 141 #endif
 142
 143 #ifdef OPENSSL_SYS_VMS
 144 #  define TEST_SERVER_CERT "SYS$DISK:[-.APPS]SERVER.PEM"
 145 #  define TEST_CLIENT_CERT "SYS$DISK:[-.APPS]CLIENT.PEM"
 146 #else
 147 #  define TEST_SERVER_CERT "../apps/server.pem"
 148 #  define TEST_CLIENT_CERT "../apps/client.pem"
 149 #endif
 150
 151 /* There is really no standard for this, so let's assign some tentative
 152    numbers.  In any case, these numbers are only for this test */
 153 #define COMP_RLE        1
 154 #define COMP_ZLIB       2
 155
 156 static int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx);
 157 #ifndef OPENSSL_NO_RSA
 158 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export,int keylength);
 159 static void free_tmp_rsa(void);
 160 #endif
 161 static int MS_CALLBACK app_verify_callback(X509_STORE_CTX *ctx, void *arg);
 162 #define APP_CALLBACK "Test Callback Argument"
 163 static char *app_verify_arg = APP_CALLBACK;
 164
 165 #ifndef OPENSSL_NO_DH
 166 static DH *get_dh512(void);
 167 static DH *get_dh1024(void);
 168 static DH *get_dh1024dsa(void);
 169 #endif
 170
 171 static BIO *bio_err=NULL;
 172 static BIO *bio_stdout=NULL;
 173
 174 static char *cipher=NULL;
 175 static int verbose=0;
 176 static int debug=0;
 177 #if 0
 178 /* Not used yet. */
 179 #ifdef FIONBIO
 180 static int s_nbio=0;
 181 #endif
 182 #endif
 183
 184 static const char rnd_seed[] = "string to make the random number generator think it has entropy";
 185
 186 int doit_biopair(SSL *s_ssl,SSL *c_ssl,long bytes,clock_t *s_time,clock_t *c_time);
 187 int doit(SSL *s_ssl,SSL *c_ssl,long bytes);
 188 static void sv_usage(void)
 189         {
 190         fprintf(stderr,"usage: ssltest [args ...]\n");
 191         fprintf(stderr,"\n");
 192         fprintf(stderr," -server_auth  - check server certificate\n");
 193         fprintf(stderr," -client_auth  - do client authentication\n");
 194         fprintf(stderr," -v            - more output\n");
 195         fprintf(stderr," -d            - debug output\n");
 196         fprintf(stderr," -reuse        - use session-id reuse\n");
 197         fprintf(stderr," -num <val>    - number of connections to perform\n");
 198         fprintf(stderr," -bytes <val>  - number of bytes to swap between client/server\n");
 199 #ifndef OPENSSL_NO_DH
 200         fprintf(stderr," -dhe1024      - use 1024 bit key (safe prime) for DHE\n");
 201         fprintf(stderr," -dhe1024dsa   - use 1024 bit key (with 160-bit subprime) for DHE\n");
 202         fprintf(stderr," -no_dhe       - disable DHE\n");
 203 #endif
 204 #ifndef OPENSSL_NO_SSL2
 205         fprintf(stderr," -ssl2         - use SSLv2\n");
 206 #endif
 207 #ifndef OPENSSL_NO_SSL3
 208         fprintf(stderr," -ssl3         - use SSLv3\n");
 209 #endif
 210 #ifndef OPENSSL_NO_TLS1
 211         fprintf(stderr," -tls1         - use TLSv1\n");
 212 #endif
 213         fprintf(stderr," -CApath arg   - PEM format directory of CA's\n");
 214         fprintf(stderr," -CAfile arg   - PEM format file of CA's\n");
 215         fprintf(stderr," -cert arg     - Server certificate file\n");
 216         fprintf(stderr," -key arg      - Server key file (default: same as -cert)\n");
 217         fprintf(stderr," -c_cert arg   - Client certificate file\n");
 218         fprintf(stderr," -c_key arg    - Client key file (default: same as -c_cert)\n");
 219         fprintf(stderr," -cipher arg   - The cipher list\n");
 220         fprintf(stderr," -bio_pair     - Use BIO pairs\n");
 221         fprintf(stderr," -f            - Test even cases that can't work\n");
 222         fprintf(stderr," -time         - measure processor time used by client and server\n");
 223         fprintf(stderr," -zlib         - use zlib compression\n");
 224         fprintf(stderr," -time         - use rle compression\n");
 225         }
 226
 227 static void print_details(SSL *c_ssl, const char *prefix)
 228         {
 229         SSL_CIPHER *ciph;
 230         X509 *cert;
 231
 232         ciph=SSL_get_current_cipher(c_ssl);
 233         BIO_printf(bio_stdout,"%s%s, cipher %s %s",
 234                 prefix,
 235                 SSL_get_version(c_ssl),
 236                 SSL_CIPHER_get_version(ciph),
 237                 SSL_CIPHER_get_name(ciph));
 238         cert=SSL_get_peer_certificate(c_ssl);
 239         if (cert != NULL)
 240                 {
 241                 EVP_PKEY *pkey = X509_get_pubkey(cert);
 242                 if (pkey != NULL)
 243                         {
 244                         if (0)
 245                                 ;
 246 #ifndef OPENSSL_NO_RSA
 247                         else if (pkey->type == EVP_PKEY_RSA && pkey->pkey.rsa != NULL
 248                                 && pkey->pkey.rsa->n != NULL)
 249                                 {
 250                                 BIO_printf(bio_stdout, ", %d bit RSA",
 251                                         BN_num_bits(pkey->pkey.rsa->n));
 252                                 }
 253 #endif
 254 #ifndef OPENSSL_NO_DSA
 255                         else if (pkey->type == EVP_PKEY_DSA && pkey->pkey.dsa != NULL
 256                                 && pkey->pkey.dsa->p != NULL)
 257                                 {
 258                                 BIO_printf(bio_stdout, ", %d bit DSA",
 259                                         BN_num_bits(pkey->pkey.dsa->p));
 260                                 }
 261 #endif
 262                         EVP_PKEY_free(pkey);
 263                         }
 264                 X509_free(cert);
 265                 }
 266         /* The SSL API does not allow us to look at temporary RSA/DH keys,
 267          * otherwise we should print their lengths too */
 268         BIO_printf(bio_stdout,"\n");
 269         }
 270
 271 static void lock_dbg_cb(int mode, int type, const char *file, int line)
 272         {
 273         static int modes[CRYPTO_NUM_LOCKS]; /* = {0, 0, ... } */
 274         const char *errstr = NULL;
 275         int rw;
 276
 277         rw = mode & (CRYPTO_READ|CRYPTO_WRITE);
 278         if (!((rw == CRYPTO_READ) || (rw == CRYPTO_WRITE)))
 279                 {
 280                 errstr = "invalid mode";
 281                 goto err;
 282                 }
 283
 284         if (type < 0 || type > CRYPTO_NUM_LOCKS)
 285                 {
 286                 errstr = "type out of bounds";
 287                 goto err;
 288                 }
 289
 290         if (mode & CRYPTO_LOCK)
 291                 {
 292                 if (modes[type])
 293                         {
 294                         errstr = "already locked";
 295                         /* must not happen in a single-threaded program
 296                          * (would deadlock) */
 297                         goto err;
 298                         }
 299
 300                 modes[type] = rw;
 301                 }
 302         else if (mode & CRYPTO_UNLOCK)
 303                 {
 304                 if (!modes[type])
 305                         {
 306                         errstr = "not locked";
 307                         goto err;
 308                         }
 309
 310                 if (modes[type] != rw)
 311                         {
 312                         errstr = (rw == CRYPTO_READ) ?
 313                                 "CRYPTO_r_unlock on write lock" :
 314                                 "CRYPTO_w_unlock on read lock";
 315                         }
 316
 317                 modes[type] = 0;
 318                 }
 319         else
 320                 {
 321                 errstr = "invalid mode";
 322                 goto err;
 323                 }
 324
 325  err:
 326         if (errstr)
 327                 {
 328                 /* we cannot use bio_err here */
 329                 fprintf(stderr, "openssl (lock_dbg_cb): %s (mode=%d, type=%d) at %s:%d\n",
 330                         errstr, mode, type, file, line);
 331                 }
 332         }
 333
 334 int main(int argc, char *argv[])
 335         {
 336         char *CApath=NULL,*CAfile=NULL;
 337         int badop=0;
 338         int bio_pair=0;
 339         int force=0;
 340         int tls1=0,ssl2=0,ssl3=0,ret=1;
 341         int client_auth=0;
 342         int server_auth=0,i;
 343         int app_verify=0;
 344         char *server_cert=TEST_SERVER_CERT;
 345         char *server_key=NULL;
 346         char *client_cert=TEST_CLIENT_CERT;
 347         char *client_key=NULL;
 348         SSL_CTX *s_ctx=NULL;
 349         SSL_CTX *c_ctx=NULL;
 350         SSL_METHOD *meth=NULL;
 351         SSL *c_ssl,*s_ssl;
 352         int number=1,reuse=0;
 353         long bytes=1L;
 354 #ifndef OPENSSL_NO_DH
 355         DH *dh;
 356         int dhe1024 = 0, dhe1024dsa = 0;
 357 #endif
 358         int no_dhe = 0;
 359         int print_time = 0;
 360         clock_t s_time = 0, c_time = 0;
 361         int comp = 0;
 362         COMP_METHOD *cm = NULL;
 363
 364         verbose = 0;
 365         debug = 0;
 366         cipher = 0;
 367
 368         CRYPTO_set_locking_callback(lock_dbg_cb);
 369
 370         /* enable memory leak checking unless explicitly disabled */
 371         if (!((getenv("OPENSSL_DEBUG_MEMORY") != NULL) && (0 == strcmp(getenv("OPENSSL_DEBUG_MEMORY"), "off"))))
 372                 {
 373                 CRYPTO_malloc_debug_init();
 374                 CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
 375                 }
 376         else
 377                 {
 378                 /* OPENSSL_DEBUG_MEMORY=off */
 379                 CRYPTO_set_mem_debug_functions(0, 0, 0, 0, 0);
 380                 }
 381         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 382
 383         RAND_seed(rnd_seed, sizeof rnd_seed);
 384
 385         bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 386         bio_stdout=BIO_new_fp(stdout,BIO_NOCLOSE);
 387
 388         argc--;
 389         argv++;
 390
 391         while (argc >= 1)
 392                 {
 393                 if      (strcmp(*argv,"-server_auth") == 0)
 394                         server_auth=1;
 395                 else if (strcmp(*argv,"-client_auth") == 0)
 396                         client_auth=1;
 397                 else if (strcmp(*argv,"-v") == 0)
 398                         verbose=1;
 399                 else if (strcmp(*argv,"-d") == 0)
 400                         debug=1;
 401                 else if (strcmp(*argv,"-reuse") == 0)
 402                         reuse=1;
 403 #ifndef OPENSSL_NO_DH
 404                 else if (strcmp(*argv,"-dhe1024") == 0)
 405                         dhe1024=1;
 406                 else if (strcmp(*argv,"-dhe1024dsa") == 0)
 407                         dhe1024dsa=1;
 408 #endif
 409                 else if (strcmp(*argv,"-no_dhe") == 0)
 410                         no_dhe=1;
 411                 else if (strcmp(*argv,"-ssl2") == 0)
 412                         ssl2=1;
 413                 else if (strcmp(*argv,"-tls1") == 0)
 414                         tls1=1;
 415                 else if (strcmp(*argv,"-ssl3") == 0)
 416                         ssl3=1;
 417                 else if (strncmp(*argv,"-num",4) == 0)
 418                         {
 419                         if (--argc < 1) goto bad;
 420                         number= atoi(*(++argv));
 421                         if (number == 0) number=1;
 422                         }
 423                 else if (strcmp(*argv,"-bytes") == 0)
 424                         {
 425                         if (--argc < 1) goto bad;
 426                         bytes= atol(*(++argv));
 427                         if (bytes == 0L) bytes=1L;
 428                         i=strlen(argv[0]);
 429                         if (argv[0][i-1] == 'k') bytes*=1024L;
 430                         if (argv[0][i-1] == 'm') bytes*=1024L*1024L;
 431                         }
 432                 else if (strcmp(*argv,"-cert") == 0)
 433                         {
 434                         if (--argc < 1) goto bad;
 435                         server_cert= *(++argv);
 436                         }
 437                 else if (strcmp(*argv,"-s_cert") == 0)
 438                         {
 439                         if (--argc < 1) goto bad;
 440                         server_cert= *(++argv);
 441                         }
 442                 else if (strcmp(*argv,"-key") == 0)
 443                         {
 444                         if (--argc < 1) goto bad;
 445                         server_key= *(++argv);
 446                         }
 447                 else if (strcmp(*argv,"-s_key") == 0)
 448                         {
 449                         if (--argc < 1) goto bad;
 450                         server_key= *(++argv);
 451                         }
 452                 else if (strcmp(*argv,"-c_cert") == 0)
 453                         {
 454                         if (--argc < 1) goto bad;
 455                         client_cert= *(++argv);
 456                         }
 457                 else if (strcmp(*argv,"-c_key") == 0)
 458                         {
 459                         if (--argc < 1) goto bad;
 460                         client_key= *(++argv);
 461                         }
 462                 else if (strcmp(*argv,"-cipher") == 0)
 463                         {
 464                         if (--argc < 1) goto bad;
 465                         cipher= *(++argv);
 466                         }
 467                 else if (strcmp(*argv,"-CApath") == 0)
 468                         {
 469                         if (--argc < 1) goto bad;
 470                         CApath= *(++argv);
 471                         }
 472                 else if (strcmp(*argv,"-CAfile") == 0)
 473                         {
 474                         if (--argc < 1) goto bad;
 475                         CAfile= *(++argv);
 476                         }
 477                 else if (strcmp(*argv,"-bio_pair") == 0)
 478                         {
 479                         bio_pair = 1;
 480                         }
 481                 else if (strcmp(*argv,"-f") == 0)
 482                         {
 483                         force = 1;
 484                         }
 485                 else if (strcmp(*argv,"-time") == 0)
 486                         {
 487                         print_time = 1;
 488                         }
 489                 else if (strcmp(*argv,"-zlib") == 0)
 490                         {
 491                         comp = COMP_ZLIB;
 492                         }
 493                 else if (strcmp(*argv,"-rle") == 0)
 494                         {
 495                         comp = COMP_RLE;
 496                         }
 497                 else if (strcmp(*argv,"-app_verify") == 0)
 498                         {
 499                         app_verify = 1;
 500                         }
 501                 else
 502                         {
 503                         fprintf(stderr,"unknown option %s\n",*argv);
 504                         badop=1;
 505                         break;
 506                         }
 507                 argc--;
 508                 argv++;
 509                 }
 510         if (badop)
 511                 {
 512 bad:
 513                 sv_usage();
 514                 goto end;
 515                 }
 516
 517         if (!ssl2 && !ssl3 && !tls1 && number > 1 && !reuse && !force)
 518                 {
 519                 fprintf(stderr, "This case cannot work.  Use -f to perform "
 520                         "the test anyway (and\n-d to see what happens), "
 521                         "or add one of -ssl2, -ssl3, -tls1, -reuse\n"
 522                         "to avoid protocol mismatch.\n");
 523                 exit(1);
 524                 }
 525
 526         if (print_time)
 527                 {
 528                 if (!bio_pair)
 529                         {
 530                         fprintf(stderr, "Using BIO pair (-bio_pair)\n");
 531                         bio_pair = 1;
 532                         }
 533                 if (number < 50 && !force)
 534                         fprintf(stderr, "Warning: For accurate timings, use more connections (e.g. -num 1000)\n");
 535                 }
 536
 537 /*      if (cipher == NULL) cipher=getenv("SSL_CIPHER"); */
 538
 539         SSL_library_init();
 540         SSL_load_error_strings();
 541
 542         if (comp == COMP_ZLIB) cm = COMP_zlib();
 543         if (comp == COMP_RLE) cm = COMP_rle();
 544         if (cm != NULL)
 545                 {
 546                 if (cm->type != NID_undef)
 547                         SSL_COMP_add_compression_method(comp, cm);
 548                 else
 549                         {
 550                         fprintf(stderr,
 551                                 "Warning: %s compression not supported\n",
 552                                 (comp == COMP_RLE ? "rle" :
 553                                         (comp == COMP_ZLIB ? "zlib" :
 554                                                 "unknown")));
 555                         ERR_print_errors_fp(stderr);
 556                         }
 557                 }
 558
 559 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 560         if (ssl2)
 561                 meth=SSLv2_method();
 562         else
 563         if (tls1)
 564                 meth=TLSv1_method();
 565         else
 566         if (ssl3)
 567                 meth=SSLv3_method();
 568         else
 569                 meth=SSLv23_method();
 570 #else
 571 #ifdef OPENSSL_NO_SSL2
 572         meth=SSLv3_method();
 573 #else
 574         meth=SSLv2_method();
 575 #endif
 576 #endif
 577
 578         c_ctx=SSL_CTX_new(meth);
 579         s_ctx=SSL_CTX_new(meth);
 580         if ((c_ctx == NULL) || (s_ctx == NULL))
 581                 {
 582                 ERR_print_errors(bio_err);
 583                 goto end;
 584                 }
 585
 586         if (cipher != NULL)
 587                 {
 588                 SSL_CTX_set_cipher_list(c_ctx,cipher);
 589                 SSL_CTX_set_cipher_list(s_ctx,cipher);
 590                 }
 591
 592 #ifndef OPENSSL_NO_DH
 593         if (!no_dhe)
 594                 {
 595                 if (dhe1024dsa)
 596                         {
 597                         /* use SSL_OP_SINGLE_DH_USE to avoid small subgroup attacks */
 598                         SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
 599                         dh=get_dh1024dsa();
 600                         }
 601                 else if (dhe1024)
 602                         dh=get_dh1024();
 603                 else
 604                         dh=get_dh512();
 605                 SSL_CTX_set_tmp_dh(s_ctx,dh);
 606                 DH_free(dh);
 607                 }
 608 #else
 609         (void)no_dhe;
 610 #endif
 611
 612 #ifndef OPENSSL_NO_RSA
 613         SSL_CTX_set_tmp_rsa_callback(s_ctx,tmp_rsa_cb);
 614 #endif
 615
 616         if (!SSL_CTX_use_certificate_file(s_ctx,server_cert,SSL_FILETYPE_PEM))
 617                 {
 618                 ERR_print_errors(bio_err);
 619                 }
 620         else if (!SSL_CTX_use_PrivateKey_file(s_ctx,
 621                 (server_key?server_key:server_cert), SSL_FILETYPE_PEM))
 622                 {
 623                 ERR_print_errors(bio_err);
 624                 goto end;
 625                 }
 626
 627         if (client_auth)
 628                 {
 629                 SSL_CTX_use_certificate_file(c_ctx,client_cert,
 630                         SSL_FILETYPE_PEM);
 631                 SSL_CTX_use_PrivateKey_file(c_ctx,
 632                         (client_key?client_key:client_cert),
 633                         SSL_FILETYPE_PEM);
 634                 }
 635
 636         if (    (!SSL_CTX_load_verify_locations(s_ctx,CAfile,CApath)) ||
 637                 (!SSL_CTX_set_default_verify_paths(s_ctx)) ||
 638                 (!SSL_CTX_load_verify_locations(c_ctx,CAfile,CApath)) ||
 639                 (!SSL_CTX_set_default_verify_paths(c_ctx)))
 640                 {
 641                 /* fprintf(stderr,"SSL_load_verify_locations\n"); */
 642                 ERR_print_errors(bio_err);
 643                 /* goto end; */
 644                 }
 645
 646         if (client_auth)
 647                 {
 648                 BIO_printf(bio_err,"client authentication\n");
 649                 SSL_CTX_set_verify(s_ctx,
 650                         SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
 651                         verify_callback);
 652                 if (app_verify)
 653                         {
 654                         SSL_CTX_set_cert_verify_callback(s_ctx, app_verify_callback, app_verify_arg);
 655                         }
 656                 }
 657         if (server_auth)
 658                 {
 659                 BIO_printf(bio_err,"server authentication\n");
 660                 SSL_CTX_set_verify(c_ctx,SSL_VERIFY_PEER,
 661                         verify_callback);
 662                 if (app_verify)
 663                         {
 664                         SSL_CTX_set_cert_verify_callback(s_ctx, app_verify_callback, app_verify_arg);
 665                         }
 666                 }
 667
 668         {
 669                 int session_id_context = 0;
 670                 SSL_CTX_set_session_id_context(s_ctx, (void *)&session_id_context, sizeof session_id_context);
 671         }
 672
 673         c_ssl=SSL_new(c_ctx);
 674         s_ssl=SSL_new(s_ctx);
 675
 676 #ifndef OPENSSL_NO_KRB5
 677         if (c_ssl  &&  c_ssl->kssl_ctx)
 678                 {
 679                 char    localhost[257];
 680
 681                 if (gethostname(localhost, 256) == 0)
 682                         {
 683                         kssl_ctx_setstring(c_ssl->kssl_ctx, KSSL_SERVER,
 684                                 localhost);
 685                         }
 686                 }
 687 #endif    /* OPENSSL_NO_KRB5  */
 688
 689         for (i=0; i<number; i++)
 690                 {
 691                 if (!reuse) SSL_set_session(c_ssl,NULL);
 692                 if (bio_pair)
 693                         ret=doit_biopair(s_ssl,c_ssl,bytes,&s_time,&c_time);
 694                 else
 695                         ret=doit(s_ssl,c_ssl,bytes);
 696                 }
 697
 698         if (!verbose)
 699                 {
 700                 print_details(c_ssl, "");
 701                 }
 702         if ((number > 1) || (bytes > 1L))
 703                 BIO_printf(bio_stdout, "%d handshakes of %ld bytes done\n",number,bytes);
 704         if (print_time)
 705                 {
 706 #ifdef CLOCKS_PER_SEC
 707                 /* "To determine the time in seconds, the value returned
 708                  * by the clock function should be divided by the value
 709                  * of the macro CLOCKS_PER_SEC."
 710                  *                                       -- ISO/IEC 9899 */
 711                 BIO_printf(bio_stdout, "Approximate total server time: %6.2f s\n"
 712                         "Approximate total client time: %6.2f s\n",
 713                         (double)s_time/CLOCKS_PER_SEC,
 714                         (double)c_time/CLOCKS_PER_SEC);
 715 #else
 716                 /* "`CLOCKS_PER_SEC' undeclared (first use this function)"
 717                  *                            -- cc on NeXTstep/OpenStep */
 718                 BIO_printf(bio_stdout,
 719                         "Approximate total server time: %6.2f units\n"
 720                         "Approximate total client time: %6.2f units\n",
 721                         (double)s_time,
 722                         (double)c_time);
 723 #endif
 724                 }
 725
 726         SSL_free(s_ssl);
 727         SSL_free(c_ssl);
 728
 729 end:
 730         if (s_ctx != NULL) SSL_CTX_free(s_ctx);
 731         if (c_ctx != NULL) SSL_CTX_free(c_ctx);
 732
 733         if (bio_stdout != NULL) BIO_free(bio_stdout);
 734
 735 #ifndef OPENSSL_NO_RSA
 736         free_tmp_rsa();
 737 #endif
 738         ENGINE_cleanup();
 739         CRYPTO_cleanup_all_ex_data();
 740         ERR_free_strings();
 741         ERR_remove_state(0);
 742         EVP_cleanup();
 743         CRYPTO_mem_leaks(bio_err);
 744         if (bio_err != NULL) BIO_free(bio_err);
 745         EXIT(ret);
 746         }
 747
 748 int doit_biopair(SSL *s_ssl, SSL *c_ssl, long count,
 749         clock_t *s_time, clock_t *c_time)
 750         {
 751         long cw_num = count, cr_num = count, sw_num = count, sr_num = count;
 752         BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL;
 753         BIO *server = NULL, *server_io = NULL, *client = NULL, *client_io = NULL;
 754         int ret = 1;
 755
 756         size_t bufsiz = 256; /* small buffer for testing */
 757
 758         if (!BIO_new_bio_pair(&server, bufsiz, &server_io, bufsiz))
 759                 goto err;
 760         if (!BIO_new_bio_pair(&client, bufsiz, &client_io, bufsiz))
 761                 goto err;
 762
 763         s_ssl_bio = BIO_new(BIO_f_ssl());
 764         if (!s_ssl_bio)
 765                 goto err;
 766
 767         c_ssl_bio = BIO_new(BIO_f_ssl());
 768         if (!c_ssl_bio)
 769                 goto err;
 770
 771         SSL_set_connect_state(c_ssl);
 772         SSL_set_bio(c_ssl, client, client);
 773         (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE);
 774
 775         SSL_set_accept_state(s_ssl);
 776         SSL_set_bio(s_ssl, server, server);
 777         (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE);
 778
 779         do
 780                 {
 781                 /* c_ssl_bio:          SSL filter BIO
 782                  *
 783                  * client:             pseudo-I/O for SSL library
 784                  *
 785                  * client_io:          client's SSL communication; usually to be
 786                  *                     relayed over some I/O facility, but in this
 787                  *                     test program, we're the server, too:
 788                  *
 789                  * server_io:          server's SSL communication
 790                  *
 791                  * server:             pseudo-I/O for SSL library
 792                  *
 793                  * s_ssl_bio:          SSL filter BIO
 794                  *
 795                  * The client and the server each employ a "BIO pair":
 796                  * client + client_io, server + server_io.
 797                  * BIO pairs are symmetric.  A BIO pair behaves similar
 798                  * to a non-blocking socketpair (but both endpoints must
 799                  * be handled by the same thread).
 800                  * [Here we could connect client and server to the ends
 801                  * of a single BIO pair, but then this code would be less
 802                  * suitable as an example for BIO pairs in general.]
 803                  *
 804                  * Useful functions for querying the state of BIO pair endpoints:
 805                  *
 806                  * BIO_ctrl_pending(bio)              number of bytes we can read now
 807                  * BIO_ctrl_get_read_request(bio)     number of bytes needed to fulfil
 808                  *                                      other side's read attempt
 809                  * BIO_ctrl_get_write_guarantee(bio)   number of bytes we can write now
 810                  *
 811                  * ..._read_request is never more than ..._write_guarantee;
 812                  * it depends on the application which one you should use.
 813                  */
 814
 815                 /* We have non-blocking behaviour throughout this test program, but
 816                  * can be sure that there is *some* progress in each iteration; so
 817                  * we don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE
 818                  * -- we just try everything in each iteration
 819                  */
 820
 821                         {
 822                         /* CLIENT */
 823
 824                         MS_STATIC char cbuf[1024*8];
 825                         int i, r;
 826                         clock_t c_clock = clock();
 827
 828                         if (debug)
 829                                 if (SSL_in_init(c_ssl))
 830                                         printf("client waiting in SSL_connect - %s\n",
 831                                                 SSL_state_string_long(c_ssl));
 832
 833                         if (cw_num > 0)
 834                                 {
 835                                 /* Write to server. */
 836
 837                                 if (cw_num > (long)sizeof cbuf)
 838                                         i = sizeof cbuf;
 839                                 else
 840                                         i = (int)cw_num;
 841                                 r = BIO_write(c_ssl_bio, cbuf, i);
 842                                 if (r < 0)
 843                                         {
 844                                         if (!BIO_should_retry(c_ssl_bio))
 845                                                 {
 846                                                 fprintf(stderr,"ERROR in CLIENT\n");
 847                                                 goto err;
 848                                                 }
 849                                         /* BIO_should_retry(...) can just be ignored here.
 850                                          * The library expects us to call BIO_write with
 851                                          * the same arguments again, and that's what we will
 852                                          * do in the next iteration. */
 853                                         }
 854                                 else if (r == 0)
 855                                         {
 856                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
 857                                         goto err;
 858                                         }
 859                                 else
 860                                         {
 861                                         if (debug)
 862                                                 printf("client wrote %d\n", r);
 863                                         cw_num -= r;
 864                                         }
 865                                 }
 866
 867                         if (cr_num > 0)
 868                                 {
 869                                 /* Read from server. */
 870
 871                                 r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf));
 872                                 if (r < 0)
 873                                         {
 874                                         if (!BIO_should_retry(c_ssl_bio))
 875                                                 {
 876                                                 fprintf(stderr,"ERROR in CLIENT\n");
 877                                                 goto err;
 878                                                 }
 879                                         /* Again, "BIO_should_retry" can be ignored. */
 880                                         }
 881                                 else if (r == 0)
 882                                         {
 883                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
 884                                         goto err;
 885                                         }
 886                                 else
 887                                         {
 888                                         if (debug)
 889                                                 printf("client read %d\n", r);
 890                                         cr_num -= r;
 891                                         }
 892                                 }
 893
 894                         /* c_time and s_time increments will typically be very small
 895                          * (depending on machine speed and clock tick intervals),
 896                          * but sampling over a large number of connections should
 897                          * result in fairly accurate figures.  We cannot guarantee
 898                          * a lot, however -- if each connection lasts for exactly
 899                          * one clock tick, it will be counted only for the client
 900                          * or only for the server or even not at all.
 901                          */
 902                         *c_time += (clock() - c_clock);
 903                         }
 904
 905                         {
 906                         /* SERVER */
 907
 908                         MS_STATIC char sbuf[1024*8];
 909                         int i, r;
 910                         clock_t s_clock = clock();
 911
 912                         if (debug)
 913                                 if (SSL_in_init(s_ssl))
 914                                         printf("server waiting in SSL_accept - %s\n",
 915                                                 SSL_state_string_long(s_ssl));
 916
 917                         if (sw_num > 0)
 918                                 {
 919                                 /* Write to client. */
 920
 921                                 if (sw_num > (long)sizeof sbuf)
 922                                         i = sizeof sbuf;
 923                                 else
 924                                         i = (int)sw_num;
 925                                 r = BIO_write(s_ssl_bio, sbuf, i);
 926                                 if (r < 0)
 927                                         {
 928                                         if (!BIO_should_retry(s_ssl_bio))
 929                                                 {
 930                                                 fprintf(stderr,"ERROR in SERVER\n");
 931                                                 goto err;
 932                                                 }
 933                                         /* Ignore "BIO_should_retry". */
 934                                         }
 935                                 else if (r == 0)
 936                                         {
 937                                         fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
 938                                         goto err;
 939                                         }
 940                                 else
 941                                         {
 942                                         if (debug)
 943                                                 printf("server wrote %d\n", r);
 944                                         sw_num -= r;
 945                                         }
 946                                 }
 947
 948                         if (sr_num > 0)
 949                                 {
 950                                 /* Read from client. */
 951
 952                                 r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf));
 953                                 if (r < 0)
 954                                         {
 955                                         if (!BIO_should_retry(s_ssl_bio))
 956                                                 {
 957                                                 fprintf(stderr,"ERROR in SERVER\n");
 958                                                 goto err;
 959                                                 }
 960                                         /* blah, blah */
 961                                         }
 962                                 else if (r == 0)
 963                                         {
 964                                         fprintf(stderr,"SSL SERVER STARTUP FAILED\n");
 965                                         goto err;
 966                                         }
 967                                 else
 968                                         {
 969                                         if (debug)
 970                                                 printf("server read %d\n", r);
 971                                         sr_num -= r;
 972                                         }
 973                                 }
 974
 975                         *s_time += (clock() - s_clock);
 976                         }
 977
 978                         {
 979                         /* "I/O" BETWEEN CLIENT AND SERVER. */
 980
 981                         size_t r1, r2;
 982                         BIO *io1 = server_io, *io2 = client_io;
 983                         /* we use the non-copying interface for io1
 984                          * and the standard BIO_write/BIO_read interface for io2
 985                          */
 986
 987                         static int prev_progress = 1;
 988                         int progress = 0;
 989
 990                         /* io1 to io2 */
 991                         do
 992                                 {
 993                                 size_t num;
 994                                 int r;
 995
 996                                 r1 = BIO_ctrl_pending(io1);
 997                                 r2 = BIO_ctrl_get_write_guarantee(io2);
 998
 999                                 num = r1;
1000                                 if (r2 < num)
1001                                         num = r2;
1002                                 if (num)
1003                                         {
1004                                         char *dataptr;
1005
1006                                         if (INT_MAX < num) /* yeah, right */
1007                                                 num = INT_MAX;
1008
1009                                         r = BIO_nread(io1, &dataptr, (int)num);
1010                                         assert(r > 0);
1011                                         assert(r <= (int)num);
1012                                         /* possibly r < num (non-contiguous data) */
1013                                         num = r;
1014                                         r = BIO_write(io2, dataptr, (int)num);
1015                                         if (r != (int)num) /* can't happen */
1016                                                 {
1017                                                 fprintf(stderr, "ERROR: BIO_write could not write "
1018                                                         "BIO_ctrl_get_write_guarantee() bytes");
1019                                                 goto err;
1020                                                 }
1021                                         progress = 1;
1022
1023                                         if (debug)
1024                                                 printf((io1 == client_io) ?
1025                                                         "C->S relaying: %d bytes\n" :
1026                                                         "S->C relaying: %d bytes\n",
1027                                                         (int)num);
1028                                         }
1029                                 }
1030                         while (r1 && r2);
1031
1032                         /* io2 to io1 */
1033                         {
1034                                 size_t num;
1035                                 int r;
1036
1037                                 r1 = BIO_ctrl_pending(io2);
1038                                 r2 = BIO_ctrl_get_read_request(io1);
1039                                 /* here we could use ..._get_write_guarantee instead of
1040                                  * ..._get_read_request, but by using the latter
1041                                  * we test restartability of the SSL implementation
1042                                  * more thoroughly */
1043                                 num = r1;
1044                                 if (r2 < num)
1045                                         num = r2;
1046                                 if (num)
1047                                         {
1048                                         char *dataptr;
1049
1050                                         if (INT_MAX < num)
1051                                                 num = INT_MAX;
1052
1053                                         if (num > 1)
1054                                                 --num; /* test restartability even more thoroughly */
1055
1056                                         r = BIO_nwrite0(io1, &dataptr);
1057                                         assert(r > 0);
1058                                         if (r < (int)num)
1059                                                 num = r;
1060                                         r = BIO_read(io2, dataptr, (int)num);
1061                                         if (r != (int)num) /* can't happen */
1062                                                 {
1063                                                 fprintf(stderr, "ERROR: BIO_read could not read "
1064                                                         "BIO_ctrl_pending() bytes");
1065                                                 goto err;
1066                                                 }
1067                                         progress = 1;
1068                                         r = BIO_nwrite(io1, &dataptr, (int)num);
1069                                         if (r != (int)num) /* can't happen */
1070                                                 {
1071                                                 fprintf(stderr, "ERROR: BIO_nwrite() did not accept "
1072                                                         "BIO_nwrite0() bytes");
1073                                                 goto err;
1074                                                 }
1075
1076                                         if (debug)
1077                                                 printf((io2 == client_io) ?
1078                                                         "C->S relaying: %d bytes\n" :
1079                                                         "S->C relaying: %d bytes\n",
1080                                                         (int)num);
1081                                         }
1082                         } /* no loop, BIO_ctrl_get_read_request now returns 0 anyway */
1083
1084                         if (!progress && !prev_progress)
1085                                 if (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0)
1086                                         {
1087                                         fprintf(stderr, "ERROR: got stuck\n");
1088                                         if (strcmp("SSLv2", SSL_get_version(c_ssl)) == 0)
1089                                                 {
1090                                                 fprintf(stderr, "This can happen for SSL2 because "
1091                                                         "CLIENT-FINISHED and SERVER-VERIFY are written \n"
1092                                                         "concurrently ...");
1093                                                 if (strncmp("2SCF", SSL_state_string(c_ssl), 4) == 0
1094                                                         && strncmp("2SSV", SSL_state_string(s_ssl), 4) == 0)
1095                                                         {
1096                                                         fprintf(stderr, " ok.\n");
1097                                                         goto end;
1098                                                         }
1099                                                 }
1100                                         fprintf(stderr, " ERROR.\n");
1101                                         goto err;
1102                                         }
1103                         prev_progress = progress;
1104                         }
1105                 }
1106         while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0);
1107
1108         if (verbose)
1109                 print_details(c_ssl, "DONE via BIO pair: ");
1110 end:
1111         ret = 0;
1112
1113  err:
1114         ERR_print_errors(bio_err);
1115
1116         if (server)
1117                 BIO_free(server);
1118         if (server_io)
1119                 BIO_free(server_io);
1120         if (client)
1121                 BIO_free(client);
1122         if (client_io)
1123                 BIO_free(client_io);
1124         if (s_ssl_bio)
1125                 BIO_free(s_ssl_bio);
1126         if (c_ssl_bio)
1127                 BIO_free(c_ssl_bio);
1128
1129         return ret;
1130         }
1131
1132
1133 #define W_READ  1
1134 #define W_WRITE 2
1135 #define C_DONE  1
1136 #define S_DONE  2
1137
1138 int doit(SSL *s_ssl, SSL *c_ssl, long count)
1139         {
1140         MS_STATIC char cbuf[1024*8],sbuf[1024*8];
1141         long cw_num=count,cr_num=count;
1142         long sw_num=count,sr_num=count;
1143         int ret=1;
1144         BIO *c_to_s=NULL;
1145         BIO *s_to_c=NULL;
1146         BIO *c_bio=NULL;
1147         BIO *s_bio=NULL;
1148         int c_r,c_w,s_r,s_w;
1149         int c_want,s_want;
1150         int i,j;
1151         int done=0;
1152         int c_write,s_write;
1153         int do_server=0,do_client=0;
1154
1155         c_to_s=BIO_new(BIO_s_mem());
1156         s_to_c=BIO_new(BIO_s_mem());
1157         if ((s_to_c == NULL) || (c_to_s == NULL))
1158                 {
1159                 ERR_print_errors(bio_err);
1160                 goto err;
1161                 }
1162
1163         c_bio=BIO_new(BIO_f_ssl());
1164         s_bio=BIO_new(BIO_f_ssl());
1165         if ((c_bio == NULL) || (s_bio == NULL))
1166                 {
1167                 ERR_print_errors(bio_err);
1168                 goto err;
1169                 }
1170
1171         SSL_set_connect_state(c_ssl);
1172         SSL_set_bio(c_ssl,s_to_c,c_to_s);
1173         BIO_set_ssl(c_bio,c_ssl,BIO_NOCLOSE);
1174
1175         SSL_set_accept_state(s_ssl);
1176         SSL_set_bio(s_ssl,c_to_s,s_to_c);
1177         BIO_set_ssl(s_bio,s_ssl,BIO_NOCLOSE);
1178
1179         c_r=0; s_r=1;
1180         c_w=1; s_w=0;
1181         c_want=W_WRITE;
1182         s_want=0;
1183         c_write=1,s_write=0;
1184
1185         /* We can always do writes */
1186         for (;;)
1187                 {
1188                 do_server=0;
1189                 do_client=0;
1190
1191                 i=(int)BIO_pending(s_bio);
1192                 if ((i && s_r) || s_w) do_server=1;
1193
1194                 i=(int)BIO_pending(c_bio);
1195                 if ((i && c_r) || c_w) do_client=1;
1196
1197                 if (do_server && debug)
1198                         {
1199                         if (SSL_in_init(s_ssl))
1200                                 printf("server waiting in SSL_accept - %s\n",
1201                                         SSL_state_string_long(s_ssl));
1202 /*                      else if (s_write)
1203                                 printf("server:SSL_write()\n");
1204                         else
1205                                 printf("server:SSL_read()\n"); */
1206                         }
1207
1208                 if (do_client && debug)
1209                         {
1210                         if (SSL_in_init(c_ssl))
1211                                 printf("client waiting in SSL_connect - %s\n",
1212                                         SSL_state_string_long(c_ssl));
1213 /*                      else if (c_write)
1214                                 printf("client:SSL_write()\n");
1215                         else
1216                                 printf("client:SSL_read()\n"); */
1217                         }
1218
1219                 if (!do_client && !do_server)
1220                         {
1221                         fprintf(stdout,"ERROR IN STARTUP\n");
1222                         ERR_print_errors(bio_err);
1223                         break;
1224                         }
1225                 if (do_client && !(done & C_DONE))
1226                         {
1227                         if (c_write)
1228                                 {
1229                                 j=(cw_num > (long)sizeof(cbuf))
1230                                         ?sizeof(cbuf):(int)cw_num;
1231                                 i=BIO_write(c_bio,cbuf,j);
1232                                 if (i < 0)
1233                                         {
1234                                         c_r=0;
1235                                         c_w=0;
1236                                         if (BIO_should_retry(c_bio))
1237                                                 {
1238                                                 if (BIO_should_read(c_bio))
1239                                                         c_r=1;
1240                                                 if (BIO_should_write(c_bio))
1241                                                         c_w=1;
1242                                                 }
1243                                         else
1244                                                 {
1245                                                 fprintf(stderr,"ERROR in CLIENT\n");
1246                                                 ERR_print_errors(bio_err);
1247                                                 goto err;
1248                                                 }
1249                                         }
1250                                 else if (i == 0)
1251                                         {
1252                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
1253                                         goto err;
1254                                         }
1255                                 else
1256                                         {
1257                                         if (debug)
1258                                                 printf("client wrote %d\n",i);
1259                                         /* ok */
1260                                         s_r=1;
1261                                         c_write=0;
1262                                         cw_num-=i;
1263                                         }
1264                                 }
1265                         else
1266                                 {
1267                                 i=BIO_read(c_bio,cbuf,sizeof(cbuf));
1268                                 if (i < 0)
1269                                         {
1270                                         c_r=0;
1271                                         c_w=0;
1272                                         if (BIO_should_retry(c_bio))
1273                                                 {
1274                                                 if (BIO_should_read(c_bio))
1275                                                         c_r=1;
1276                                                 if (BIO_should_write(c_bio))
1277                                                         c_w=1;
1278                                                 }
1279                                         else
1280                                                 {
1281                                                 fprintf(stderr,"ERROR in CLIENT\n");
1282                                                 ERR_print_errors(bio_err);
1283                                                 goto err;
1284                                                 }
1285                                         }
1286                                 else if (i == 0)
1287                                         {
1288                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
1289                                         goto err;
1290                                         }
1291                                 else
1292                                         {
1293                                         if (debug)
1294                                                 printf("client read %d\n",i);
1295                                         cr_num-=i;
1296                                         if (sw_num > 0)
1297                                                 {
1298                                                 s_write=1;
1299                                                 s_w=1;
1300                                                 }
1301                                         if (cr_num <= 0)
1302                                                 {
1303                                                 s_write=1;
1304                                                 s_w=1;
1305                                                 done=S_DONE|C_DONE;
1306                                                 }
1307                                         }
1308                                 }
1309                         }
1310
1311                 if (do_server && !(done & S_DONE))
1312                         {
1313                         if (!s_write)
1314                                 {
1315                                 i=BIO_read(s_bio,sbuf,sizeof(cbuf));
1316                                 if (i < 0)
1317                                         {
1318                                         s_r=0;
1319                                         s_w=0;
1320                                         if (BIO_should_retry(s_bio))
1321                                                 {
1322                                                 if (BIO_should_read(s_bio))
1323                                                         s_r=1;
1324                                                 if (BIO_should_write(s_bio))
1325                                                         s_w=1;
1326                                                 }
1327                                         else
1328                                                 {
1329                                                 fprintf(stderr,"ERROR in SERVER\n");
1330                                                 ERR_print_errors(bio_err);
1331                                                 goto err;
1332                                                 }
1333                                         }
1334                                 else if (i == 0)
1335                                         {
1336                                         ERR_print_errors(bio_err);
1337                                         fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_read\n");
1338                                         goto err;
1339                                         }
1340                                 else
1341                                         {
1342                                         if (debug)
1343                                                 printf("server read %d\n",i);
1344                                         sr_num-=i;
1345                                         if (cw_num > 0)
1346                                                 {
1347                                                 c_write=1;
1348                                                 c_w=1;
1349                                                 }
1350                                         if (sr_num <= 0)
1351                                                 {
1352                                                 s_write=1;
1353                                                 s_w=1;
1354                                                 c_write=0;
1355                                                 }
1356                                         }
1357                                 }
1358                         else
1359                                 {
1360                                 j=(sw_num > (long)sizeof(sbuf))?
1361                                         sizeof(sbuf):(int)sw_num;
1362                                 i=BIO_write(s_bio,sbuf,j);
1363                                 if (i < 0)
1364                                         {
1365                                         s_r=0;
1366                                         s_w=0;
1367                                         if (BIO_should_retry(s_bio))
1368                                                 {
1369                                                 if (BIO_should_read(s_bio))
1370                                                         s_r=1;
1371                                                 if (BIO_should_write(s_bio))
1372                                                         s_w=1;
1373                                                 }
1374                                         else
1375                                                 {
1376                                                 fprintf(stderr,"ERROR in SERVER\n");
1377                                                 ERR_print_errors(bio_err);
1378                                                 goto err;
1379                                                 }
1380                                         }
1381                                 else if (i == 0)
1382                                         {
1383                                         ERR_print_errors(bio_err);
1384                                         fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_write\n");
1385                                         goto err;
1386                                         }
1387                                 else
1388                                         {
1389                                         if (debug)
1390                                                 printf("server wrote %d\n",i);
1391                                         sw_num-=i;
1392                                         s_write=0;
1393                                         c_r=1;
1394                                         if (sw_num <= 0)
1395                                                 done|=S_DONE;
1396                                         }
1397                                 }
1398                         }
1399
1400                 if ((done & S_DONE) && (done & C_DONE)) break;
1401                 }
1402
1403         if (verbose)
1404                 print_details(c_ssl, "DONE: ");
1405         ret=0;
1406 err:
1407         /* We have to set the BIO's to NULL otherwise they will be
1408          * OPENSSL_free()ed twice.  Once when th s_ssl is SSL_free()ed and
1409          * again when c_ssl is SSL_free()ed.
1410          * This is a hack required because s_ssl and c_ssl are sharing the same
1411          * BIO structure and SSL_set_bio() and SSL_free() automatically
1412          * BIO_free non NULL entries.
1413          * You should not normally do this or be required to do this */
1414         if (s_ssl != NULL)
1415                 {
1416                 s_ssl->rbio=NULL;
1417                 s_ssl->wbio=NULL;
1418                 }
1419         if (c_ssl != NULL)
1420                 {
1421                 c_ssl->rbio=NULL;
1422                 c_ssl->wbio=NULL;
1423                 }
1424
1425         if (c_to_s != NULL) BIO_free(c_to_s);
1426         if (s_to_c != NULL) BIO_free(s_to_c);
1427         if (c_bio != NULL) BIO_free_all(c_bio);
1428         if (s_bio != NULL) BIO_free_all(s_bio);
1429         return(ret);
1430         }
1431
1432 static int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
1433         {
1434         char *s,buf[256];
1435
1436         s=X509_NAME_oneline(X509_get_subject_name(ctx->current_cert),buf,256);
1437         if (s != NULL)
1438                 {
1439                 if (ok)
1440                         fprintf(stderr,"depth=%d %s\n",ctx->error_depth,buf);
1441                 else
1442                         fprintf(stderr,"depth=%d error=%d %s\n",
1443                                 ctx->error_depth,ctx->error,buf);
1444                 }
1445
1446         if (ok == 0)
1447                 {
1448                 switch (ctx->error)
1449                         {
1450                 case X509_V_ERR_CERT_NOT_YET_VALID:
1451                 case X509_V_ERR_CERT_HAS_EXPIRED:
1452                 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
1453                         ok=1;
1454                         }
1455                 }
1456
1457         return(ok);
1458         }
1459
1460 static int MS_CALLBACK app_verify_callback(X509_STORE_CTX *ctx, void *arg)
1461         {
1462         char *s = NULL,buf[256];
1463         int ok=1;
1464
1465         fprintf(stderr, "In app_verify_callback, allowing cert. ");
1466         fprintf(stderr, "Arg is: %s\n", (char *)arg);
1467         fprintf(stderr, "Finished printing do we have a context? 0x%x a cert? 0x%x\n",
1468                         (unsigned int)ctx, (unsigned int)ctx->cert);
1469         if (ctx->cert)
1470                 s=X509_NAME_oneline(X509_get_subject_name(ctx->cert),buf,256);
1471         if (s != NULL)
1472                 {
1473                         fprintf(stderr,"cert depth=%d %s\n",ctx->error_depth,buf);
1474                 }
1475
1476         return(ok);
1477         }
1478
1479 #ifndef OPENSSL_NO_RSA
1480 static RSA *rsa_tmp=NULL;
1481
1482 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1483         {
1484         if (rsa_tmp == NULL)
1485                 {
1486                 BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1487                 (void)BIO_flush(bio_err);
1488                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1489                 BIO_printf(bio_err,"\n");
1490                 (void)BIO_flush(bio_err);
1491                 }
1492         return(rsa_tmp);
1493         }
1494
1495 static void free_tmp_rsa(void)
1496         {
1497         if (rsa_tmp != NULL)
1498                 {
1499                 RSA_free(rsa_tmp);
1500                 rsa_tmp = NULL;
1501                 }
1502         }
1503 #endif
1504
1505 #ifndef OPENSSL_NO_DH
1506 /* These DH parameters have been generated as follows:
1507  *    $ openssl dhparam -C -noout 512
1508  *    $ openssl dhparam -C -noout 1024
1509  *    $ openssl dhparam -C -noout -dsaparam 1024
1510  * (The third function has been renamed to avoid name conflicts.)
1511  */
1512 static DH *get_dh512()
1513         {
1514         static unsigned char dh512_p[]={
1515                 0xCB,0xC8,0xE1,0x86,0xD0,0x1F,0x94,0x17,0xA6,0x99,0xF0,0xC6,
1516                 0x1F,0x0D,0xAC,0xB6,0x25,0x3E,0x06,0x39,0xCA,0x72,0x04,0xB0,
1517                 0x6E,0xDA,0xC0,0x61,0xE6,0x7A,0x77,0x25,0xE8,0x3B,0xB9,0x5F,
1518                 0x9A,0xB6,0xB5,0xFE,0x99,0x0B,0xA1,0x93,0x4E,0x35,0x33,0xB8,
1519                 0xE1,0xF1,0x13,0x4F,0x59,0x1A,0xD2,0x57,0xC0,0x26,0x21,0x33,
1520                 0x02,0xC5,0xAE,0x23,
1521                 };
1522         static unsigned char dh512_g[]={
1523                 0x02,
1524                 };
1525         DH *dh;
1526
1527         if ((dh=DH_new()) == NULL) return(NULL);
1528         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
1529         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
1530         if ((dh->p == NULL) || (dh->g == NULL))
1531                 { DH_free(dh); return(NULL); }
1532         return(dh);
1533         }
1534
1535 static DH *get_dh1024()
1536         {
1537         static unsigned char dh1024_p[]={
1538                 0xF8,0x81,0x89,0x7D,0x14,0x24,0xC5,0xD1,0xE6,0xF7,0xBF,0x3A,
1539                 0xE4,0x90,0xF4,0xFC,0x73,0xFB,0x34,0xB5,0xFA,0x4C,0x56,0xA2,
1540                 0xEA,0xA7,0xE9,0xC0,0xC0,0xCE,0x89,0xE1,0xFA,0x63,0x3F,0xB0,
1541                 0x6B,0x32,0x66,0xF1,0xD1,0x7B,0xB0,0x00,0x8F,0xCA,0x87,0xC2,
1542                 0xAE,0x98,0x89,0x26,0x17,0xC2,0x05,0xD2,0xEC,0x08,0xD0,0x8C,
1543                 0xFF,0x17,0x52,0x8C,0xC5,0x07,0x93,0x03,0xB1,0xF6,0x2F,0xB8,
1544                 0x1C,0x52,0x47,0x27,0x1B,0xDB,0xD1,0x8D,0x9D,0x69,0x1D,0x52,
1545                 0x4B,0x32,0x81,0xAA,0x7F,0x00,0xC8,0xDC,0xE6,0xD9,0xCC,0xC1,
1546                 0x11,0x2D,0x37,0x34,0x6C,0xEA,0x02,0x97,0x4B,0x0E,0xBB,0xB1,
1547                 0x71,0x33,0x09,0x15,0xFD,0xDD,0x23,0x87,0x07,0x5E,0x89,0xAB,
1548                 0x6B,0x7C,0x5F,0xEC,0xA6,0x24,0xDC,0x53,
1549                 };
1550         static unsigned char dh1024_g[]={
1551                 0x02,
1552                 };
1553         DH *dh;
1554
1555         if ((dh=DH_new()) == NULL) return(NULL);
1556         dh->p=BN_bin2bn(dh1024_p,sizeof(dh1024_p),NULL);
1557         dh->g=BN_bin2bn(dh1024_g,sizeof(dh1024_g),NULL);
1558         if ((dh->p == NULL) || (dh->g == NULL))
1559                 { DH_free(dh); return(NULL); }
1560         return(dh);
1561         }
1562
1563 static DH *get_dh1024dsa()
1564         {
1565         static unsigned char dh1024_p[]={
1566                 0xC8,0x00,0xF7,0x08,0x07,0x89,0x4D,0x90,0x53,0xF3,0xD5,0x00,
1567                 0x21,0x1B,0xF7,0x31,0xA6,0xA2,0xDA,0x23,0x9A,0xC7,0x87,0x19,
1568                 0x3B,0x47,0xB6,0x8C,0x04,0x6F,0xFF,0xC6,0x9B,0xB8,0x65,0xD2,
1569                 0xC2,0x5F,0x31,0x83,0x4A,0xA7,0x5F,0x2F,0x88,0x38,0xB6,0x55,
1570                 0xCF,0xD9,0x87,0x6D,0x6F,0x9F,0xDA,0xAC,0xA6,0x48,0xAF,0xFC,
1571                 0x33,0x84,0x37,0x5B,0x82,0x4A,0x31,0x5D,0xE7,0xBD,0x52,0x97,
1572                 0xA1,0x77,0xBF,0x10,0x9E,0x37,0xEA,0x64,0xFA,0xCA,0x28,0x8D,
1573                 0x9D,0x3B,0xD2,0x6E,0x09,0x5C,0x68,0xC7,0x45,0x90,0xFD,0xBB,
1574                 0x70,0xC9,0x3A,0xBB,0xDF,0xD4,0x21,0x0F,0xC4,0x6A,0x3C,0xF6,
1575                 0x61,0xCF,0x3F,0xD6,0x13,0xF1,0x5F,0xBC,0xCF,0xBC,0x26,0x9E,
1576                 0xBC,0x0B,0xBD,0xAB,0x5D,0xC9,0x54,0x39,
1577                 };
1578         static unsigned char dh1024_g[]={
1579                 0x3B,0x40,0x86,0xE7,0xF3,0x6C,0xDE,0x67,0x1C,0xCC,0x80,0x05,
1580                 0x5A,0xDF,0xFE,0xBD,0x20,0x27,0x74,0x6C,0x24,0xC9,0x03,0xF3,
1581                 0xE1,0x8D,0xC3,0x7D,0x98,0x27,0x40,0x08,0xB8,0x8C,0x6A,0xE9,
1582                 0xBB,0x1A,0x3A,0xD6,0x86,0x83,0x5E,0x72,0x41,0xCE,0x85,0x3C,
1583                 0xD2,0xB3,0xFC,0x13,0xCE,0x37,0x81,0x9E,0x4C,0x1C,0x7B,0x65,
1584                 0xD3,0xE6,0xA6,0x00,0xF5,0x5A,0x95,0x43,0x5E,0x81,0xCF,0x60,
1585                 0xA2,0x23,0xFC,0x36,0xA7,0x5D,0x7A,0x4C,0x06,0x91,0x6E,0xF6,
1586                 0x57,0xEE,0x36,0xCB,0x06,0xEA,0xF5,0x3D,0x95,0x49,0xCB,0xA7,
1587                 0xDD,0x81,0xDF,0x80,0x09,0x4A,0x97,0x4D,0xA8,0x22,0x72,0xA1,
1588                 0x7F,0xC4,0x70,0x56,0x70,0xE8,0x20,0x10,0x18,0x8F,0x2E,0x60,
1589                 0x07,0xE7,0x68,0x1A,0x82,0x5D,0x32,0xA2,
1590                 };
1591         DH *dh;
1592
1593         if ((dh=DH_new()) == NULL) return(NULL);
1594         dh->p=BN_bin2bn(dh1024_p,sizeof(dh1024_p),NULL);
1595         dh->g=BN_bin2bn(dh1024_g,sizeof(dh1024_g),NULL);
1596         if ((dh->p == NULL) || (dh->g == NULL))
1597                 { DH_free(dh); return(NULL); }
1598         dh->length = 160;
1599         return(dh);
1600         }
1601 #endif