apps/s_server.c

   1 /* apps/s_server.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  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 113  * ECC cipher suite support in OpenSSL originally developed by
 114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 115  */
 116
 117 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
 118  * deprecated functions for openssl-internal code */
 119 #ifdef OPENSSL_NO_DEPRECATED
 120 #undef OPENSSL_NO_DEPRECATED
 121 #endif
 122
 123 #include <assert.h>
 124 #include <stdio.h>
 125 #include <stdlib.h>
 126 #include <string.h>
 127
 128 #include <sys/stat.h>
 129 #include <openssl/e_os2.h>
 130 #ifdef OPENSSL_NO_STDIO
 131 #define APPS_WIN16
 132 #endif
 133
 134 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
 135 #include <sys/types.h>
 136 #endif
 137
 138 /* With IPv6, it looks like Digital has mixed up the proper order of
 139    recursive header file inclusion, resulting in the compiler complaining
 140    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 141    is needed to have fileno() declared correctly...  So let's define u_int */
 142 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 143 #define __U_INT
 144 typedef unsigned int u_int;
 145 #endif
 146
 147 #include <openssl/lhash.h>
 148 #include <openssl/bn.h>
 149 #define USE_SOCKETS
 150 #include "apps.h"
 151 #include <openssl/err.h>
 152 #include <openssl/pem.h>
 153 #include <openssl/x509.h>
 154 #include <openssl/ssl.h>
 155 #include <openssl/rand.h>
 156 #ifndef OPENSSL_NO_DH
 157 #include <openssl/dh.h>
 158 #endif
 159 #ifndef OPENSSL_NO_RSA
 160 #include <openssl/rsa.h>
 161 #endif
 162 #include "s_apps.h"
 163 #include "timeouts.h"
 164
 165 #ifdef OPENSSL_SYS_WINCE
 166 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 167 #ifdef fileno
 168 #undef fileno
 169 #endif
 170 #define fileno(a) (int)_fileno(a)
 171 #endif
 172
 173 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 174 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 175 #undef FIONBIO
 176 #endif
 177
 178 #ifndef OPENSSL_NO_RSA
 179 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 180 #endif
 181 static int sv_body(char *hostname, int s, unsigned char *context);
 182 static int www_body(char *hostname, int s, unsigned char *context);
 183 static void close_accept_socket(void );
 184 static void sv_usage(void);
 185 static int init_ssl_connection(SSL *s);
 186 static void print_stats(BIO *bp,SSL_CTX *ctx);
 187 static int generate_session_id(const SSL *ssl, unsigned char *id,
 188                                 unsigned int *id_len);
 189 #ifndef OPENSSL_NO_DH
 190 static DH *load_dh_param(const char *dhfile);
 191 static DH *get_dh512(void);
 192 #endif
 193
 194 #ifdef MONOLITH
 195 static void s_server_init(void);
 196 #endif
 197
 198 #ifndef S_ISDIR
 199 # if defined(_S_IFMT) && defined(_S_IFDIR)
 200 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 201 # else
 202 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 203 # endif
 204 #endif
 205
 206 #ifndef OPENSSL_NO_DH
 207 static unsigned char dh512_p[]={
 208         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 209         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 210         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 211         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 212         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 213         0x47,0x74,0xE8,0x33,
 214         };
 215 static unsigned char dh512_g[]={
 216         0x02,
 217         };
 218
 219 static DH *get_dh512(void)
 220         {
 221         DH *dh=NULL;
 222
 223         if ((dh=DH_new()) == NULL) return(NULL);
 224         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 225         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 226         if ((dh->p == NULL) || (dh->g == NULL))
 227                 return(NULL);
 228         return(dh);
 229         }
 230 #endif
 231
 232
 233 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 234
 235 #undef BUFSIZZ
 236 #define BUFSIZZ 16*1024
 237 static int bufsize=BUFSIZZ;
 238 static int accept_socket= -1;
 239
 240 #define TEST_CERT       "server.pem"
 241 #ifndef OPENSSL_NO_TLSEXT
 242 #define TEST_CERT2      "server2.pem"
 243 #endif
 244 #undef PROG
 245 #define PROG            s_server_main
 246
 247 extern int verify_depth;
 248
 249 static char *cipher=NULL;
 250 static int s_server_verify=SSL_VERIFY_NONE;
 251 static int s_server_session_id_context = 1; /* anything will do */
 252 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 253 #ifndef OPENSSL_NO_TLSEXT
 254 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
 255 #endif
 256 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 257 #ifdef FIONBIO
 258 static int s_nbio=0;
 259 #endif
 260 static int s_nbio_test=0;
 261 int s_crlf=0;
 262 static SSL_CTX *ctx=NULL;
 263 #ifndef OPENSSL_NO_TLSEXT
 264 static SSL_CTX *ctx2=NULL;
 265 #endif
 266 static int www=0;
 267
 268 static BIO *bio_s_out=NULL;
 269 static int s_debug=0;
 270 #ifndef OPENSSL_NO_TLSEXT
 271 static int s_tlsextdebug=0;
 272 #endif
 273 static int s_msg=0;
 274 static int s_quiet=0;
 275
 276 static int hack=0;
 277 #ifndef OPENSSL_NO_ENGINE
 278 static char *engine_id=NULL;
 279 #endif
 280 static const char *session_id_prefix=NULL;
 281
 282 static int enable_timeouts = 0;
 283 #ifdef mtu
 284 #undef mtu
 285 #endif
 286 static long mtu;
 287 static int cert_chain = 0;
 288
 289
 290 #ifdef MONOLITH
 291 static void s_server_init(void)
 292         {
 293         accept_socket=-1;
 294         cipher=NULL;
 295         s_server_verify=SSL_VERIFY_NONE;
 296         s_dcert_file=NULL;
 297         s_dkey_file=NULL;
 298         s_cert_file=TEST_CERT;
 299         s_key_file=NULL;
 300 #ifndef OPENSSL_NO_TLSEXT
 301         s_cert_file2=TEST_CERT2;
 302         s_key_file2=NULL;
 303         ctx2=NULL;
 304 #endif
 305 #ifdef FIONBIO
 306         s_nbio=0;
 307 #endif
 308         s_nbio_test=0;
 309         ctx=NULL;
 310         www=0;
 311
 312         bio_s_out=NULL;
 313         s_debug=0;
 314         s_msg=0;
 315         s_quiet=0;
 316         hack=0;
 317 #ifndef OPENSSL_NO_ENGINE
 318         engine_id=NULL;
 319 #endif
 320         }
 321 #endif
 322
 323 static void sv_usage(void)
 324         {
 325         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 326         BIO_printf(bio_err,"\n");
 327         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 328         BIO_printf(bio_err," -context arg  - set session ID context\n");
 329         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 330         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 331         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 332         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 333         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 334         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 335         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 336         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 337         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 338         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 339         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 340         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 341         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 342         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 343         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 344         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 345 #ifndef OPENSSL_NO_ECDH
 346         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 347                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 348                            "                 (default is sect163r2).\n");
 349 #endif
 350 #ifdef FIONBIO
 351         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 352 #endif
 353         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 354         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 355         BIO_printf(bio_err," -debug        - Print more output\n");
 356         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 357         BIO_printf(bio_err," -state        - Print the SSL states\n");
 358         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 359         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 360         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 361         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 362         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 363         BIO_printf(bio_err," -quiet        - No server output\n");
 364         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 365         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 366         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 367         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 368         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 369         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 370         BIO_printf(bio_err," -mtu          - Set MTU\n");
 371         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 372         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 373         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 374         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 375 #ifndef OPENSSL_NO_DH
 376         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 377 #endif
 378 #ifndef OPENSSL_NO_ECDH
 379         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 380 #endif
 381         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 382         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 383         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 384         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 385         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 386 #ifndef OPENSSL_NO_ENGINE
 387         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 388 #endif
 389         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 390         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 391 #ifndef OPENSSL_NO_TLSEXT
 392         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 393         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
 394         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 395         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 396         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 397         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 398 #endif
 399         }
 400
 401 static int local_argc=0;
 402 static char **local_argv;
 403
 404 #ifdef CHARSET_EBCDIC
 405 static int ebcdic_new(BIO *bi);
 406 static int ebcdic_free(BIO *a);
 407 static int ebcdic_read(BIO *b, char *out, int outl);
 408 static int ebcdic_write(BIO *b, const char *in, int inl);
 409 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 410 static int ebcdic_gets(BIO *bp, char *buf, int size);
 411 static int ebcdic_puts(BIO *bp, const char *str);
 412
 413 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 414 static BIO_METHOD methods_ebcdic=
 415         {
 416         BIO_TYPE_EBCDIC_FILTER,
 417         "EBCDIC/ASCII filter",
 418         ebcdic_write,
 419         ebcdic_read,
 420         ebcdic_puts,
 421         ebcdic_gets,
 422         ebcdic_ctrl,
 423         ebcdic_new,
 424         ebcdic_free,
 425         };
 426
 427 typedef struct
 428 {
 429         size_t  alloced;
 430         char    buff[1];
 431 } EBCDIC_OUTBUFF;
 432
 433 BIO_METHOD *BIO_f_ebcdic_filter()
 434 {
 435         return(&methods_ebcdic);
 436 }
 437
 438 static int ebcdic_new(BIO *bi)
 439 {
 440         EBCDIC_OUTBUFF *wbuf;
 441
 442         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 443         wbuf->alloced = 1024;
 444         wbuf->buff[0] = '\0';
 445
 446         bi->ptr=(char *)wbuf;
 447         bi->init=1;
 448         bi->flags=0;
 449         return(1);
 450 }
 451
 452 static int ebcdic_free(BIO *a)
 453 {
 454         if (a == NULL) return(0);
 455         if (a->ptr != NULL)
 456                 OPENSSL_free(a->ptr);
 457         a->ptr=NULL;
 458         a->init=0;
 459         a->flags=0;
 460         return(1);
 461 }
 462
 463 static int ebcdic_read(BIO *b, char *out, int outl)
 464 {
 465         int ret=0;
 466
 467         if (out == NULL || outl == 0) return(0);
 468         if (b->next_bio == NULL) return(0);
 469
 470         ret=BIO_read(b->next_bio,out,outl);
 471         if (ret > 0)
 472                 ascii2ebcdic(out,out,ret);
 473         return(ret);
 474 }
 475
 476 static int ebcdic_write(BIO *b, const char *in, int inl)
 477 {
 478         EBCDIC_OUTBUFF *wbuf;
 479         int ret=0;
 480         int num;
 481         unsigned char n;
 482
 483         if ((in == NULL) || (inl <= 0)) return(0);
 484         if (b->next_bio == NULL) return(0);
 485
 486         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 487
 488         if (inl > (num = wbuf->alloced))
 489         {
 490                 num = num + num;  /* double the size */
 491                 if (num < inl)
 492                         num = inl;
 493                 OPENSSL_free(wbuf);
 494                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 495
 496                 wbuf->alloced = num;
 497                 wbuf->buff[0] = '\0';
 498
 499                 b->ptr=(char *)wbuf;
 500         }
 501
 502         ebcdic2ascii(wbuf->buff, in, inl);
 503
 504         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 505
 506         return(ret);
 507 }
 508
 509 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 510 {
 511         long ret;
 512
 513         if (b->next_bio == NULL) return(0);
 514         switch (cmd)
 515         {
 516         case BIO_CTRL_DUP:
 517                 ret=0L;
 518                 break;
 519         default:
 520                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 521                 break;
 522         }
 523         return(ret);
 524 }
 525
 526 static int ebcdic_gets(BIO *bp, char *buf, int size)
 527 {
 528         int i, ret=0;
 529         if (bp->next_bio == NULL) return(0);
 530 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 531         for (i=0; i<size-1; ++i)
 532         {
 533                 ret = ebcdic_read(bp,&buf[i],1);
 534                 if (ret <= 0)
 535                         break;
 536                 else if (buf[i] == '\n')
 537                 {
 538                         ++i;
 539                         break;
 540                 }
 541         }
 542         if (i < size)
 543                 buf[i] = '\0';
 544         return (ret < 0 && i == 0) ? ret : i;
 545 }
 546
 547 static int ebcdic_puts(BIO *bp, const char *str)
 548 {
 549         if (bp->next_bio == NULL) return(0);
 550         return ebcdic_write(bp, str, strlen(str));
 551 }
 552 #endif
 553
 554 #ifndef OPENSSL_NO_TLSEXT
 555
 556 /* This is a context that we pass to callbacks */
 557 typedef struct tlsextctx_st {
 558    char * servername;
 559    BIO * biodebug;
 560    int extension_error;
 561 } tlsextctx;
 562
 563
 564 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 565         {
 566         tlsextctx * p = (tlsextctx *) arg;
 567         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 568         if (servername && p->biodebug)
 569                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 570
 571         if (!p->servername)
 572                 return SSL_TLSEXT_ERR_NOACK;
 573
 574         if (servername)
 575                 {
 576                 if (strcmp(servername,p->servername))
 577                         return p->extension_error;
 578                 if (ctx2)
 579                         {
 580                         BIO_printf(p->biodebug,"Swiching server context.\n");
 581                         SSL_set_SSL_CTX(s,ctx2);
 582                         }
 583                 }
 584         return SSL_TLSEXT_ERR_OK;
 585 }
 586 #endif
 587 int MAIN(int, char **);
 588
 589 int MAIN(int argc, char *argv[])
 590         {
 591         X509_STORE *store = NULL;
 592         int vflags = 0;
 593         short port=PORT;
 594         char *CApath=NULL,*CAfile=NULL;
 595         unsigned char *context = NULL;
 596         char *dhfile = NULL;
 597 #ifndef OPENSSL_NO_ECDH
 598         char *named_curve = NULL;
 599 #endif
 600         int badop=0,bugs=0;
 601         int ret=1;
 602         int off=0;
 603         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
 604         int state=0;
 605         SSL_METHOD *meth=NULL;
 606         int socket_type=SOCK_STREAM;
 607 #ifndef OPENSSL_NO_ENGINE
 608         ENGINE *e=NULL;
 609 #endif
 610         char *inrand=NULL;
 611         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
 612         char *passarg = NULL, *pass = NULL;
 613         char *dpassarg = NULL, *dpass = NULL;
 614         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
 615         X509 *s_cert = NULL, *s_dcert = NULL;
 616         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
 617 #ifndef OPENSSL_NO_TLSEXT
 618         EVP_PKEY *s_key2 = NULL;
 619         X509 *s_cert2 = NULL;
 620 #endif
 621
 622 #ifndef OPENSSL_NO_TLSEXT
 623         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
 624 #endif
 625
 626 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 627         meth=SSLv23_server_method();
 628 #elif !defined(OPENSSL_NO_SSL3)
 629         meth=SSLv3_server_method();
 630 #elif !defined(OPENSSL_NO_SSL2)
 631         meth=SSLv2_server_method();
 632 #endif
 633
 634         local_argc=argc;
 635         local_argv=argv;
 636
 637         apps_startup();
 638 #ifdef MONOLITH
 639         s_server_init();
 640 #endif
 641
 642         if (bio_err == NULL)
 643                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 644
 645         if (!load_config(bio_err, NULL))
 646                 goto end;
 647
 648         verify_depth=0;
 649 #ifdef FIONBIO
 650         s_nbio=0;
 651 #endif
 652         s_nbio_test=0;
 653
 654         argc--;
 655         argv++;
 656
 657         while (argc >= 1)
 658                 {
 659                 if      ((strcmp(*argv,"-port") == 0) ||
 660                          (strcmp(*argv,"-accept") == 0))
 661                         {
 662                         if (--argc < 1) goto bad;
 663                         if (!extract_port(*(++argv),&port))
 664                                 goto bad;
 665                         }
 666                 else if (strcmp(*argv,"-verify") == 0)
 667                         {
 668                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 669                         if (--argc < 1) goto bad;
 670                         verify_depth=atoi(*(++argv));
 671                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 672                         }
 673                 else if (strcmp(*argv,"-Verify") == 0)
 674                         {
 675                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 676                                 SSL_VERIFY_CLIENT_ONCE;
 677                         if (--argc < 1) goto bad;
 678                         verify_depth=atoi(*(++argv));
 679                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 680                         }
 681                 else if (strcmp(*argv,"-context") == 0)
 682                         {
 683                         if (--argc < 1) goto bad;
 684                         context= (unsigned char *)*(++argv);
 685                         }
 686                 else if (strcmp(*argv,"-cert") == 0)
 687                         {
 688                         if (--argc < 1) goto bad;
 689                         s_cert_file= *(++argv);
 690                         }
 691                 else if (strcmp(*argv,"-certform") == 0)
 692                         {
 693                         if (--argc < 1) goto bad;
 694                         s_cert_format = str2fmt(*(++argv));
 695                         }
 696                 else if (strcmp(*argv,"-key") == 0)
 697                         {
 698                         if (--argc < 1) goto bad;
 699                         s_key_file= *(++argv);
 700                         }
 701                 else if (strcmp(*argv,"-keyform") == 0)
 702                         {
 703                         if (--argc < 1) goto bad;
 704                         s_key_format = str2fmt(*(++argv));
 705                         }
 706                 else if (strcmp(*argv,"-pass") == 0)
 707                         {
 708                         if (--argc < 1) goto bad;
 709                         passarg = *(++argv);
 710                         }
 711                 else if (strcmp(*argv,"-dhparam") == 0)
 712                         {
 713                         if (--argc < 1) goto bad;
 714                         dhfile = *(++argv);
 715                         }
 716 #ifndef OPENSSL_NO_ECDH
 717                 else if (strcmp(*argv,"-named_curve") == 0)
 718                         {
 719                         if (--argc < 1) goto bad;
 720                         named_curve = *(++argv);
 721                         }
 722 #endif
 723                 else if (strcmp(*argv,"-dcertform") == 0)
 724                         {
 725                         if (--argc < 1) goto bad;
 726                         s_dcert_format = str2fmt(*(++argv));
 727                         }
 728                 else if (strcmp(*argv,"-dcert") == 0)
 729                         {
 730                         if (--argc < 1) goto bad;
 731                         s_dcert_file= *(++argv);
 732                         }
 733                 else if (strcmp(*argv,"-dkeyform") == 0)
 734                         {
 735                         if (--argc < 1) goto bad;
 736                         s_dkey_format = str2fmt(*(++argv));
 737                         }
 738                 else if (strcmp(*argv,"-dpass") == 0)
 739                         {
 740                         if (--argc < 1) goto bad;
 741                         dpassarg = *(++argv);
 742                         }
 743                 else if (strcmp(*argv,"-dkey") == 0)
 744                         {
 745                         if (--argc < 1) goto bad;
 746                         s_dkey_file= *(++argv);
 747                         }
 748                 else if (strcmp(*argv,"-nocert") == 0)
 749                         {
 750                         nocert=1;
 751                         }
 752                 else if (strcmp(*argv,"-CApath") == 0)
 753                         {
 754                         if (--argc < 1) goto bad;
 755                         CApath= *(++argv);
 756                         }
 757                 else if (strcmp(*argv,"-crl_check") == 0)
 758                         {
 759                         vflags |= X509_V_FLAG_CRL_CHECK;
 760                         }
 761                 else if (strcmp(*argv,"-crl_check") == 0)
 762                         {
 763                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 764                         }
 765                 else if (strcmp(*argv,"-serverpref") == 0)
 766                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
 767                 else if (strcmp(*argv,"-cipher") == 0)
 768                         {
 769                         if (--argc < 1) goto bad;
 770                         cipher= *(++argv);
 771                         }
 772                 else if (strcmp(*argv,"-CAfile") == 0)
 773                         {
 774                         if (--argc < 1) goto bad;
 775                         CAfile= *(++argv);
 776                         }
 777 #ifdef FIONBIO
 778                 else if (strcmp(*argv,"-nbio") == 0)
 779                         { s_nbio=1; }
 780 #endif
 781                 else if (strcmp(*argv,"-nbio_test") == 0)
 782                         {
 783 #ifdef FIONBIO
 784                         s_nbio=1;
 785 #endif
 786                         s_nbio_test=1;
 787                         }
 788                 else if (strcmp(*argv,"-debug") == 0)
 789                         { s_debug=1; }
 790 #ifndef OPENSSL_NO_TLSEXT
 791                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 792                         s_tlsextdebug=1;
 793 #endif
 794                 else if (strcmp(*argv,"-msg") == 0)
 795                         { s_msg=1; }
 796                 else if (strcmp(*argv,"-hack") == 0)
 797                         { hack=1; }
 798                 else if (strcmp(*argv,"-state") == 0)
 799                         { state=1; }
 800                 else if (strcmp(*argv,"-crlf") == 0)
 801                         { s_crlf=1; }
 802                 else if (strcmp(*argv,"-quiet") == 0)
 803                         { s_quiet=1; }
 804                 else if (strcmp(*argv,"-bugs") == 0)
 805                         { bugs=1; }
 806                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 807                         { no_tmp_rsa=1; }
 808                 else if (strcmp(*argv,"-no_dhe") == 0)
 809                         { no_dhe=1; }
 810                 else if (strcmp(*argv,"-no_ecdhe") == 0)
 811                         { no_ecdhe=1; }
 812                 else if (strcmp(*argv,"-www") == 0)
 813                         { www=1; }
 814                 else if (strcmp(*argv,"-WWW") == 0)
 815                         { www=2; }
 816                 else if (strcmp(*argv,"-HTTP") == 0)
 817                         { www=3; }
 818                 else if (strcmp(*argv,"-no_ssl2") == 0)
 819                         { off|=SSL_OP_NO_SSLv2; }
 820                 else if (strcmp(*argv,"-no_ssl3") == 0)
 821                         { off|=SSL_OP_NO_SSLv3; }
 822                 else if (strcmp(*argv,"-no_tls1") == 0)
 823                         { off|=SSL_OP_NO_TLSv1; }
 824 #ifndef OPENSSL_NO_TLSEXT
 825                 else if (strcmp(*argv,"-no_ticket") == 0)
 826                         { off|=SSL_OP_NO_TICKET; }
 827 #endif
 828 #ifndef OPENSSL_NO_SSL2
 829                 else if (strcmp(*argv,"-ssl2") == 0)
 830                         { meth=SSLv2_server_method(); }
 831 #endif
 832 #ifndef OPENSSL_NO_SSL3
 833                 else if (strcmp(*argv,"-ssl3") == 0)
 834                         { meth=SSLv3_server_method(); }
 835 #endif
 836 #ifndef OPENSSL_NO_TLS1
 837                 else if (strcmp(*argv,"-tls1") == 0)
 838                         { meth=TLSv1_server_method(); }
 839 #endif
 840 #ifndef OPENSSL_NO_DTLS1
 841                 else if (strcmp(*argv,"-dtls1") == 0)
 842                         {
 843                         meth=DTLSv1_server_method();
 844                         socket_type = SOCK_DGRAM;
 845                         }
 846                 else if (strcmp(*argv,"-timeout") == 0)
 847                         enable_timeouts = 1;
 848                 else if (strcmp(*argv,"-mtu") == 0)
 849                         {
 850                         if (--argc < 1) goto bad;
 851                         mtu = atol(*(++argv));
 852                         }
 853                 else if (strcmp(*argv, "-chain") == 0)
 854                         cert_chain = 1;
 855 #endif
 856                 else if (strcmp(*argv, "-id_prefix") == 0)
 857                         {
 858                         if (--argc < 1) goto bad;
 859                         session_id_prefix = *(++argv);
 860                         }
 861 #ifndef OPENSSL_NO_ENGINE
 862                 else if (strcmp(*argv,"-engine") == 0)
 863                         {
 864                         if (--argc < 1) goto bad;
 865                         engine_id= *(++argv);
 866                         }
 867 #endif
 868                 else if (strcmp(*argv,"-rand") == 0)
 869                         {
 870                         if (--argc < 1) goto bad;
 871                         inrand= *(++argv);
 872                         }
 873 #ifndef OPENSSL_NO_TLSEXT
 874                 else if (strcmp(*argv,"-servername") == 0)
 875                         {
 876                         if (--argc < 1) goto bad;
 877                         tlsextcbp.servername= *(++argv);
 878                         }
 879                 else if (strcmp(*argv,"-servername_fatal") == 0)
 880                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
 881                 else if (strcmp(*argv,"-cert2") == 0)
 882                         {
 883                         if (--argc < 1) goto bad;
 884                         s_cert_file2= *(++argv);
 885                         }
 886                 else if (strcmp(*argv,"-key2") == 0)
 887                         {
 888                         if (--argc < 1) goto bad;
 889                         s_key_file2= *(++argv);
 890                         }
 891 #endif
 892                 else
 893                         {
 894                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 895                         badop=1;
 896                         break;
 897                         }
 898                 argc--;
 899                 argv++;
 900                 }
 901         if (badop)
 902                 {
 903 bad:
 904                 sv_usage();
 905                 goto end;
 906                 }
 907
 908         SSL_load_error_strings();
 909         OpenSSL_add_ssl_algorithms();
 910
 911 #ifndef OPENSSL_NO_ENGINE
 912         e = setup_engine(bio_err, engine_id, 1);
 913 #endif
 914
 915         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
 916                 {
 917                 BIO_printf(bio_err, "Error getting password\n");
 918                 goto end;
 919                 }
 920
 921
 922         if (s_key_file == NULL)
 923                 s_key_file = s_cert_file;
 924 #ifndef OPENSSL_NO_TLSEXT
 925         if (s_key_file2 == NULL)
 926                 s_key_file2 = s_cert_file2;
 927 #endif
 928
 929         if (nocert == 0)
 930                 {
 931                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
 932                        "server certificate private key file");
 933                 if (!s_key)
 934                         {
 935                         ERR_print_errors(bio_err);
 936                         goto end;
 937                         }
 938
 939                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
 940                         NULL, e, "server certificate file");
 941
 942                 if (!s_cert)
 943                         {
 944                         ERR_print_errors(bio_err);
 945                         goto end;
 946                         }
 947
 948 #ifndef OPENSSL_NO_TLSEXT
 949                 if (tlsextcbp.servername)
 950                         {
 951                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
 952                                 "second server certificate private key file");
 953                         if (!s_key2)
 954                                 {
 955                                 ERR_print_errors(bio_err);
 956                                 goto end;
 957                                 }
 958
 959                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
 960                                 NULL, e, "second server certificate file");
 961
 962                         if (!s_cert2)
 963                                 {
 964                                 ERR_print_errors(bio_err);
 965                                 goto end;
 966                                 }
 967                         }
 968 #endif
 969                 }
 970         if (s_dcert_file)
 971                 {
 972
 973                 if (s_dkey_file == NULL)
 974                         s_dkey_file = s_dcert_file;
 975
 976                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
 977                                 0, dpass, e,
 978                                "second certificate private key file");
 979                 if (!s_dkey)
 980                         {
 981                         ERR_print_errors(bio_err);
 982                         goto end;
 983                         }
 984
 985                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
 986                                 NULL, e, "second server certificate file");
 987
 988                 if (!s_dcert)
 989                         {
 990                         ERR_print_errors(bio_err);
 991                         goto end;
 992                         }
 993
 994                 }
 995
 996         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 997                 && !RAND_status())
 998                 {
 999                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1000                 }
1001         if (inrand != NULL)
1002                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1003                         app_RAND_load_files(inrand));
1004
1005         if (bio_s_out == NULL)
1006                 {
1007                 if (s_quiet && !s_debug && !s_msg)
1008                         {
1009                         bio_s_out=BIO_new(BIO_s_null());
1010                         }
1011                 else
1012                         {
1013                         if (bio_s_out == NULL)
1014                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1015                         }
1016                 }
1017
1018 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1019         if (nocert)
1020 #endif
1021                 {
1022                 s_cert_file=NULL;
1023                 s_key_file=NULL;
1024                 s_dcert_file=NULL;
1025                 s_dkey_file=NULL;
1026 #ifndef OPENSSL_NO_TLSEXT
1027                 s_cert_file2=NULL;
1028                 s_key_file2=NULL;
1029 #endif
1030                 }
1031
1032         ctx=SSL_CTX_new(meth);
1033         if (ctx == NULL)
1034                 {
1035                 ERR_print_errors(bio_err);
1036                 goto end;
1037                 }
1038         if (session_id_prefix)
1039                 {
1040                 if(strlen(session_id_prefix) >= 32)
1041                         BIO_printf(bio_err,
1042 "warning: id_prefix is too long, only one new session will be possible\n");
1043                 else if(strlen(session_id_prefix) >= 16)
1044                         BIO_printf(bio_err,
1045 "warning: id_prefix is too long if you use SSLv2\n");
1046                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1047                         {
1048                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1049                         ERR_print_errors(bio_err);
1050                         goto end;
1051                         }
1052                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1053                 }
1054         SSL_CTX_set_quiet_shutdown(ctx,1);
1055         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1056         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1057         SSL_CTX_set_options(ctx,off);
1058         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1059          * Setting read ahead solves this problem.
1060          */
1061         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1062
1063         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1064
1065         SSL_CTX_sess_set_cache_size(ctx,128);
1066
1067 #if 0
1068         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1069 #endif
1070
1071 #if 0
1072         if (s_cert_file == NULL)
1073                 {
1074                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1075                 goto end;
1076                 }
1077 #endif
1078
1079         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1080                 (!SSL_CTX_set_default_verify_paths(ctx)))
1081                 {
1082                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1083                 ERR_print_errors(bio_err);
1084                 /* goto end; */
1085                 }
1086         store = SSL_CTX_get_cert_store(ctx);
1087         X509_STORE_set_flags(store, vflags);
1088 #ifndef OPENSSL_NO_TLSEXT
1089         if (s_cert2)
1090                 {
1091                 ctx2=SSL_CTX_new(meth);
1092                 if (ctx2 == NULL)
1093                         {
1094                         ERR_print_errors(bio_err);
1095                         goto end;
1096                         }
1097                 }
1098
1099         if (ctx2)
1100                 {
1101                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1102
1103                 if (session_id_prefix)
1104                         {
1105                         if(strlen(session_id_prefix) >= 32)
1106                                 BIO_printf(bio_err,
1107                                         "warning: id_prefix is too long, only one new session will be possible\n");
1108                         else if(strlen(session_id_prefix) >= 16)
1109                                 BIO_printf(bio_err,
1110                                         "warning: id_prefix is too long if you use SSLv2\n");
1111                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1112                                 {
1113                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1114                                 ERR_print_errors(bio_err);
1115                                 goto end;
1116                                 }
1117                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1118                         }
1119                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1120                 if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1121                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1122                 SSL_CTX_set_options(ctx2,off);
1123
1124                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1125                  * Setting read ahead solves this problem.
1126                  */
1127                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1128
1129
1130                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1131
1132                 SSL_CTX_sess_set_cache_size(ctx2,128);
1133
1134                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1135                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1136                         {
1137                         ERR_print_errors(bio_err);
1138                         }
1139                 store = SSL_CTX_get_cert_store(ctx2);
1140                 X509_STORE_set_flags(store, vflags);
1141                 }
1142 #endif
1143
1144
1145 #ifndef OPENSSL_NO_DH
1146         if (!no_dhe)
1147                 {
1148                 DH *dh=NULL;
1149
1150                 if (dhfile)
1151                         dh = load_dh_param(dhfile);
1152                 else if (s_cert_file)
1153                         dh = load_dh_param(s_cert_file);
1154
1155                 if (dh != NULL)
1156                         {
1157                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1158                         }
1159                 else
1160                         {
1161                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1162                         dh=get_dh512();
1163                         }
1164                 (void)BIO_flush(bio_s_out);
1165
1166                 SSL_CTX_set_tmp_dh(ctx,dh);
1167 #ifndef OPENSSL_NO_TLSEXT
1168                 if (ctx2)
1169                         {
1170                         if (!dhfile)
1171                                 {
1172                                 DH *dh2=load_dh_param(s_cert_file2);
1173                                 if (dh2 != NULL)
1174                                         {
1175                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1176                                         (void)BIO_flush(bio_s_out);
1177
1178                                         DH_free(dh);
1179                                         dh = dh2;
1180                                         }
1181                                 }
1182                         SSL_CTX_set_tmp_dh(ctx2,dh);
1183                         }
1184 #endif
1185                 DH_free(dh);
1186                 }
1187 #endif
1188
1189 #ifndef OPENSSL_NO_ECDH
1190         if (!no_ecdhe)
1191                 {
1192                 EC_KEY *ecdh=NULL;
1193
1194                 if (named_curve)
1195                         {
1196                         int nid = OBJ_sn2nid(named_curve);
1197
1198                         if (nid == 0)
1199                                 {
1200                                 BIO_printf(bio_err, "unknown curve name (%s)\n",
1201                                         named_curve);
1202                                 goto end;
1203                                 }
1204                         ecdh = EC_KEY_new_by_curve_name(nid);
1205                         if (ecdh == NULL)
1206                                 {
1207                                 BIO_printf(bio_err, "unable to create curve (%s)\n",
1208                                         named_curve);
1209                                 goto end;
1210                                 }
1211                         }
1212
1213                 if (ecdh != NULL)
1214                         {
1215                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1216                         }
1217                 else
1218                         {
1219                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1220                         ecdh = EC_KEY_new_by_curve_name(NID_sect163r2);
1221                         if (ecdh == NULL)
1222                                 {
1223                                 BIO_printf(bio_err, "unable to create curve (sect163r2)\n");
1224                                 goto end;
1225                                 }
1226                         }
1227                 (void)BIO_flush(bio_s_out);
1228
1229                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1230 #ifndef OPENSSL_NO_TLSEXT
1231                 if (ctx2)
1232                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1233 #endif
1234                 EC_KEY_free(ecdh);
1235                 }
1236 #endif
1237
1238         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1239                 goto end;
1240 #ifndef OPENSSL_NO_TLSEXT
1241         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1242                 goto end;
1243 #endif
1244         if (s_dcert != NULL)
1245                 {
1246                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1247                         goto end;
1248                 }
1249
1250 #ifndef OPENSSL_NO_RSA
1251 #if 1
1252         if (!no_tmp_rsa)
1253                 {
1254                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1255 #ifndef OPENSSL_NO_TLSEXT
1256                 if (ctx2)
1257                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1258 #endif
1259                 }
1260 #else
1261         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1262                 {
1263                 RSA *rsa;
1264
1265                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1266                 BIO_flush(bio_s_out);
1267
1268                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1269
1270                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1271                         {
1272                         ERR_print_errors(bio_err);
1273                         goto end;
1274                         }
1275 #ifndef OPENSSL_NO_TLSEXT
1276                         if (ctx2)
1277                                 {
1278                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1279                                         {
1280                                         ERR_print_errors(bio_err);
1281                                         goto end;
1282                                         }
1283                                 }
1284 #endif
1285                 RSA_free(rsa);
1286                 BIO_printf(bio_s_out,"\n");
1287                 }
1288 #endif
1289 #endif
1290
1291         if (cipher != NULL)
1292                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1293                 BIO_printf(bio_err,"error setting cipher list\n");
1294                 ERR_print_errors(bio_err);
1295                 goto end;
1296 #ifndef OPENSSL_NO_TLSEXT
1297                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1298                         {
1299                         BIO_printf(bio_err,"error setting cipher list\n");
1300                         ERR_print_errors(bio_err);
1301                         goto end;
1302                         }
1303 #endif
1304         }
1305         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1306         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1307                 sizeof s_server_session_id_context);
1308
1309 #ifndef OPENSSL_NO_TLSEXT
1310         if (ctx2)
1311                 {
1312                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1313                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1314                         sizeof s_server_session_id_context);
1315
1316                 tlsextcbp.biodebug = bio_s_out;
1317                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1318                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1319                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1320                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1321                 }
1322 #endif
1323         if (CAfile != NULL)
1324                 {
1325                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1326 #ifndef OPENSSL_NO_TLSEXT
1327                 if (ctx2)
1328                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1329 #endif
1330                 }
1331         BIO_printf(bio_s_out,"ACCEPT\n");
1332         if (www)
1333                 do_server(port,socket_type,&accept_socket,www_body, context);
1334         else
1335                 do_server(port,socket_type,&accept_socket,sv_body, context);
1336         print_stats(bio_s_out,ctx);
1337         ret=0;
1338 end:
1339         if (ctx != NULL) SSL_CTX_free(ctx);
1340         if (s_cert)
1341                 X509_free(s_cert);
1342         if (s_dcert)
1343                 X509_free(s_dcert);
1344         if (s_key)
1345                 EVP_PKEY_free(s_key);
1346         if (s_dkey)
1347                 EVP_PKEY_free(s_dkey);
1348         if (pass)
1349                 OPENSSL_free(pass);
1350         if (dpass)
1351                 OPENSSL_free(dpass);
1352 #ifndef OPENSSL_NO_TLSEXT
1353         if (ctx2 != NULL) SSL_CTX_free(ctx2);
1354         if (s_cert2)
1355                 X509_free(s_cert2);
1356         if (s_key2)
1357                 EVP_PKEY_free(s_key2);
1358 #endif
1359         if (bio_s_out != NULL)
1360                 {
1361         BIO_free(bio_s_out);
1362                 bio_s_out=NULL;
1363                 }
1364         apps_shutdown();
1365         OPENSSL_EXIT(ret);
1366         }
1367
1368 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1369         {
1370         BIO_printf(bio,"%4ld items in the session cache\n",
1371                 SSL_CTX_sess_number(ssl_ctx));
1372         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1373                 SSL_CTX_sess_connect(ssl_ctx));
1374         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1375                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1376         BIO_printf(bio,"%4ld client connects that finished\n",
1377                 SSL_CTX_sess_connect_good(ssl_ctx));
1378         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1379                 SSL_CTX_sess_accept(ssl_ctx));
1380         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1381                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1382         BIO_printf(bio,"%4ld server accepts that finished\n",
1383                 SSL_CTX_sess_accept_good(ssl_ctx));
1384         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1385         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1386         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1387         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1388         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1389                 SSL_CTX_sess_cache_full(ssl_ctx),
1390                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1391         }
1392
1393 static int sv_body(char *hostname, int s, unsigned char *context)
1394         {
1395         char *buf=NULL;
1396         fd_set readfds;
1397         int ret=1,width;
1398         int k,i;
1399         unsigned long l;
1400         SSL *con=NULL;
1401         BIO *sbio;
1402 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1403         struct timeval tv;
1404 #endif
1405
1406         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1407                 {
1408                 BIO_printf(bio_err,"out of memory\n");
1409                 goto err;
1410                 }
1411 #ifdef FIONBIO
1412         if (s_nbio)
1413                 {
1414                 unsigned long sl=1;
1415
1416                 if (!s_quiet)
1417                         BIO_printf(bio_err,"turning on non blocking io\n");
1418                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1419                         ERR_print_errors(bio_err);
1420                 }
1421 #endif
1422
1423         if (con == NULL) {
1424                 con=SSL_new(ctx);
1425 #ifndef OPENSSL_NO_TLSEXT
1426         if (s_tlsextdebug)
1427                 {
1428                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1429                 SSL_set_tlsext_debug_arg(con, bio_s_out);
1430                 }
1431 #endif
1432 #ifndef OPENSSL_NO_KRB5
1433                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1434                         {
1435                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
1436                                                                 KRB5SVC);
1437                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
1438                                                                 KRB5KEYTAB);
1439                         }
1440 #endif  /* OPENSSL_NO_KRB5 */
1441                 if(context)
1442                       SSL_set_session_id_context(con, context,
1443                                                  strlen((char *)context));
1444         }
1445         SSL_clear(con);
1446
1447         if (SSL_version(con) == DTLS1_VERSION)
1448                 {
1449                 struct timeval timeout;
1450
1451                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1452
1453                 if ( enable_timeouts)
1454                         {
1455                         timeout.tv_sec = 0;
1456                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1457                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1458
1459                         timeout.tv_sec = 0;
1460                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1461                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1462                         }
1463
1464
1465                 if ( mtu > 0)
1466                         {
1467                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1468                         SSL_set_mtu(con, mtu);
1469                         }
1470                 else
1471                         /* want to do MTU discovery */
1472                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1473
1474         /* turn on cookie exchange */
1475         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
1476                 }
1477         else
1478                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1479
1480         if (s_nbio_test)
1481                 {
1482                 BIO *test;
1483
1484                 test=BIO_new(BIO_f_nbio_test());
1485                 sbio=BIO_push(test,sbio);
1486                 }
1487         SSL_set_bio(con,sbio,sbio);
1488         SSL_set_accept_state(con);
1489         /* SSL_set_fd(con,s); */
1490
1491         if (s_debug)
1492                 {
1493                 con->debug=1;
1494                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1495                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
1496                 }
1497         if (s_msg)
1498                 {
1499                 SSL_set_msg_callback(con, msg_cb);
1500                 SSL_set_msg_callback_arg(con, bio_s_out);
1501                 }
1502 #ifndef OPENSSL_NO_TLSEXT
1503         if (s_tlsextdebug)
1504                 {
1505                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1506                 SSL_set_tlsext_debug_arg(con, bio_s_out);
1507                 }
1508 #endif
1509
1510         width=s+1;
1511         for (;;)
1512                 {
1513                 int read_from_terminal;
1514                 int read_from_sslcon;
1515
1516                 read_from_terminal = 0;
1517                 read_from_sslcon = SSL_pending(con);
1518
1519                 if (!read_from_sslcon)
1520                         {
1521                         FD_ZERO(&readfds);
1522 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1523                         FD_SET(fileno(stdin),&readfds);
1524 #endif
1525                         FD_SET(s,&readfds);
1526                         /* Note: under VMS with SOCKETSHR the second parameter is
1527                          * currently of type (int *) whereas under other systems
1528                          * it is (void *) if you don't have a cast it will choke
1529                          * the compiler: if you do have a cast then you can either
1530                          * go for (int *) or (void *).
1531                          */
1532 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1533                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
1534                          * on sockets. As a workaround we timeout the select every
1535                          * second and check for any keypress. In a proper Windows
1536                          * application we wouldn't do this because it is inefficient.
1537                          */
1538                         tv.tv_sec = 1;
1539                         tv.tv_usec = 0;
1540                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
1541                         if((i < 0) || (!i && !_kbhit() ) )continue;
1542                         if(_kbhit())
1543                                 read_from_terminal = 1;
1544 #else
1545                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
1546                         if (i <= 0) continue;
1547                         if (FD_ISSET(fileno(stdin),&readfds))
1548                                 read_from_terminal = 1;
1549 #endif
1550                         if (FD_ISSET(s,&readfds))
1551                                 read_from_sslcon = 1;
1552                         }
1553                 if (read_from_terminal)
1554                         {
1555                         if (s_crlf)
1556                                 {
1557                                 int j, lf_num;
1558
1559                                 i=read(fileno(stdin), buf, bufsize/2);
1560                                 lf_num = 0;
1561                                 /* both loops are skipped when i <= 0 */
1562                                 for (j = 0; j < i; j++)
1563                                         if (buf[j] == '\n')
1564                                                 lf_num++;
1565                                 for (j = i-1; j >= 0; j--)
1566                                         {
1567                                         buf[j+lf_num] = buf[j];
1568                                         if (buf[j] == '\n')
1569                                                 {
1570                                                 lf_num--;
1571                                                 i++;
1572                                                 buf[j+lf_num] = '\r';
1573                                                 }
1574                                         }
1575                                 assert(lf_num == 0);
1576                                 }
1577                         else
1578                                 i=read(fileno(stdin),buf,bufsize);
1579                         if (!s_quiet)
1580                                 {
1581                                 if ((i <= 0) || (buf[0] == 'Q'))
1582                                         {
1583                                         BIO_printf(bio_s_out,"DONE\n");
1584                                         SHUTDOWN(s);
1585                                         close_accept_socket();
1586                                         ret= -11;
1587                                         goto err;
1588                                         }
1589                                 if ((i <= 0) || (buf[0] == 'q'))
1590                                         {
1591                                         BIO_printf(bio_s_out,"DONE\n");
1592                                         if (SSL_version(con) != DTLS1_VERSION)
1593                         SHUTDOWN(s);
1594         /*                              close_accept_socket();
1595                                         ret= -11;*/
1596                                         goto err;
1597                                         }
1598                                 if ((buf[0] == 'r') &&
1599                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1600                                         {
1601                                         SSL_renegotiate(con);
1602                                         i=SSL_do_handshake(con);
1603                                         printf("SSL_do_handshake -> %d\n",i);
1604                                         i=0; /*13; */
1605                                         continue;
1606                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1607                                         }
1608                                 if ((buf[0] == 'R') &&
1609                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1610                                         {
1611                                         SSL_set_verify(con,
1612                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1613                                         SSL_renegotiate(con);
1614                                         i=SSL_do_handshake(con);
1615                                         printf("SSL_do_handshake -> %d\n",i);
1616                                         i=0; /* 13; */
1617                                         continue;
1618                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1619                                         }
1620                                 if (buf[0] == 'P')
1621                                         {
1622                                         static const char *str="Lets print some clear text\n";
1623                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1624                                         }
1625                                 if (buf[0] == 'S')
1626                                         {
1627                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1628                                         }
1629                                 }
1630 #ifdef CHARSET_EBCDIC
1631                         ebcdic2ascii(buf,buf,i);
1632 #endif
1633                         l=k=0;
1634                         for (;;)
1635                                 {
1636                                 /* should do a select for the write */
1637 #ifdef RENEG
1638 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1639 #endif
1640                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1641                                 switch (SSL_get_error(con,k))
1642                                         {
1643                                 case SSL_ERROR_NONE:
1644                                         break;
1645                                 case SSL_ERROR_WANT_WRITE:
1646                                 case SSL_ERROR_WANT_READ:
1647                                 case SSL_ERROR_WANT_X509_LOOKUP:
1648                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1649                                         break;
1650                                 case SSL_ERROR_SYSCALL:
1651                                 case SSL_ERROR_SSL:
1652                                         BIO_printf(bio_s_out,"ERROR\n");
1653                                         ERR_print_errors(bio_err);
1654                                         ret=1;
1655                                         goto err;
1656                                         /* break; */
1657                                 case SSL_ERROR_ZERO_RETURN:
1658                                         BIO_printf(bio_s_out,"DONE\n");
1659                                         ret=1;
1660                                         goto err;
1661                                         }
1662                                 l+=k;
1663                                 i-=k;
1664                                 if (i <= 0) break;
1665                                 }
1666                         }
1667                 if (read_from_sslcon)
1668                         {
1669                         if (!SSL_is_init_finished(con))
1670                                 {
1671                                 i=init_ssl_connection(con);
1672
1673                                 if (i < 0)
1674                                         {
1675                                         ret=0;
1676                                         goto err;
1677                                         }
1678                                 else if (i == 0)
1679                                         {
1680                                         ret=1;
1681                                         goto err;
1682                                         }
1683                                 }
1684                         else
1685                                 {
1686 again:
1687                                 i=SSL_read(con,(char *)buf,bufsize);
1688                                 switch (SSL_get_error(con,i))
1689                                         {
1690                                 case SSL_ERROR_NONE:
1691 #ifdef CHARSET_EBCDIC
1692                                         ascii2ebcdic(buf,buf,i);
1693 #endif
1694                                         write(fileno(stdout),buf,
1695                                                 (unsigned int)i);
1696                                         if (SSL_pending(con)) goto again;
1697                                         break;
1698                                 case SSL_ERROR_WANT_WRITE:
1699                                 case SSL_ERROR_WANT_READ:
1700                                 case SSL_ERROR_WANT_X509_LOOKUP:
1701                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1702                                         break;
1703                                 case SSL_ERROR_SYSCALL:
1704                                 case SSL_ERROR_SSL:
1705                                         BIO_printf(bio_s_out,"ERROR\n");
1706                                         ERR_print_errors(bio_err);
1707                                         ret=1;
1708                                         goto err;
1709                                 case SSL_ERROR_ZERO_RETURN:
1710                                         BIO_printf(bio_s_out,"DONE\n");
1711                                         ret=1;
1712                                         goto err;
1713                                         }
1714                                 }
1715                         }
1716                 }
1717 err:
1718         BIO_printf(bio_s_out,"shutting down SSL\n");
1719 #if 1
1720         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1721 #else
1722         SSL_shutdown(con);
1723 #endif
1724         if (con != NULL) SSL_free(con);
1725         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1726         if (buf != NULL)
1727                 {
1728                 OPENSSL_cleanse(buf,bufsize);
1729                 OPENSSL_free(buf);
1730                 }
1731         if (ret >= 0)
1732                 BIO_printf(bio_s_out,"ACCEPT\n");
1733         return(ret);
1734         }
1735
1736 static void close_accept_socket(void)
1737         {
1738         BIO_printf(bio_err,"shutdown accept socket\n");
1739         if (accept_socket >= 0)
1740                 {
1741                 SHUTDOWN2(accept_socket);
1742                 }
1743         }
1744
1745 static int init_ssl_connection(SSL *con)
1746         {
1747         int i;
1748         const char *str;
1749         X509 *peer;
1750         long verify_error;
1751         MS_STATIC char buf[BUFSIZ];
1752
1753         if ((i=SSL_accept(con)) <= 0)
1754                 {
1755                 if (BIO_sock_should_retry(i))
1756                         {
1757                         BIO_printf(bio_s_out,"DELAY\n");
1758                         return(1);
1759                         }
1760
1761                 BIO_printf(bio_err,"ERROR\n");
1762                 verify_error=SSL_get_verify_result(con);
1763                 if (verify_error != X509_V_OK)
1764                         {
1765                         BIO_printf(bio_err,"verify error:%s\n",
1766                                 X509_verify_cert_error_string(verify_error));
1767                         }
1768                 else
1769                         ERR_print_errors(bio_err);
1770                 return(0);
1771                 }
1772
1773         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1774
1775         peer=SSL_get_peer_certificate(con);
1776         if (peer != NULL)
1777                 {
1778                 BIO_printf(bio_s_out,"Client certificate\n");
1779                 PEM_write_bio_X509(bio_s_out,peer);
1780                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
1781                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1782                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
1783                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1784                 X509_free(peer);
1785                 }
1786
1787         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
1788                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1789         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1790         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1791         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1792         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1793                 TLS1_FLAGS_TLS_PADDING_BUG)
1794                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1795 #ifndef OPENSSL_NO_KRB5
1796         if (con->kssl_ctx->client_princ != NULL)
1797                 {
1798                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
1799                         con->kssl_ctx->client_princ);
1800                 }
1801 #endif /* OPENSSL_NO_KRB5 */
1802         return(1);
1803         }
1804
1805 #ifndef OPENSSL_NO_DH
1806 static DH *load_dh_param(const char *dhfile)
1807         {
1808         DH *ret=NULL;
1809         BIO *bio;
1810
1811         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1812                 goto err;
1813         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1814 err:
1815         if (bio != NULL) BIO_free(bio);
1816         return(ret);
1817         }
1818 #endif
1819
1820 #if 0
1821 static int load_CA(SSL_CTX *ctx, char *file)
1822         {
1823         FILE *in;
1824         X509 *x=NULL;
1825
1826         if ((in=fopen(file,"r")) == NULL)
1827                 return(0);
1828
1829         for (;;)
1830                 {
1831                 if (PEM_read_X509(in,&x,NULL) == NULL)
1832                         break;
1833                 SSL_CTX_add_client_CA(ctx,x);
1834                 }
1835         if (x != NULL) X509_free(x);
1836         fclose(in);
1837         return(1);
1838         }
1839 #endif
1840
1841 static int www_body(char *hostname, int s, unsigned char *context)
1842         {
1843         char *buf=NULL;
1844         int ret=1;
1845         int i,j,k,blank,dot;
1846         struct stat st_buf;
1847         SSL *con;
1848         SSL_CIPHER *c;
1849         BIO *io,*ssl_bio,*sbio;
1850         long total_bytes;
1851
1852         buf=OPENSSL_malloc(bufsize);
1853         if (buf == NULL) return(0);
1854         io=BIO_new(BIO_f_buffer());
1855         ssl_bio=BIO_new(BIO_f_ssl());
1856         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1857
1858 #ifdef FIONBIO
1859         if (s_nbio)
1860                 {
1861                 unsigned long sl=1;
1862
1863                 if (!s_quiet)
1864                         BIO_printf(bio_err,"turning on non blocking io\n");
1865                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1866                         ERR_print_errors(bio_err);
1867                 }
1868 #endif
1869
1870         /* lets make the output buffer a reasonable size */
1871         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1872
1873         if ((con=SSL_new(ctx)) == NULL) goto err;
1874 #ifndef OPENSSL_NO_TLSEXT
1875                 if (s_tlsextdebug)
1876                         {
1877                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
1878                         SSL_set_tlsext_debug_arg(con, bio_s_out);
1879                         }
1880 #endif
1881 #ifndef OPENSSL_NO_KRB5
1882         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1883                 {
1884                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
1885                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
1886                 }
1887 #endif  /* OPENSSL_NO_KRB5 */
1888         if(context) SSL_set_session_id_context(con, context,
1889                                                strlen((char *)context));
1890
1891         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1892         if (s_nbio_test)
1893                 {
1894                 BIO *test;
1895
1896                 test=BIO_new(BIO_f_nbio_test());
1897                 sbio=BIO_push(test,sbio);
1898                 }
1899         SSL_set_bio(con,sbio,sbio);
1900         SSL_set_accept_state(con);
1901
1902         /* SSL_set_fd(con,s); */
1903         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1904         BIO_push(io,ssl_bio);
1905 #ifdef CHARSET_EBCDIC
1906         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1907 #endif
1908
1909         if (s_debug)
1910                 {
1911                 con->debug=1;
1912                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1913                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
1914                 }
1915         if (s_msg)
1916                 {
1917                 SSL_set_msg_callback(con, msg_cb);
1918                 SSL_set_msg_callback_arg(con, bio_s_out);
1919                 }
1920
1921         blank=0;
1922         for (;;)
1923                 {
1924                 if (hack)
1925                         {
1926                         i=SSL_accept(con);
1927
1928                         switch (SSL_get_error(con,i))
1929                                 {
1930                         case SSL_ERROR_NONE:
1931                                 break;
1932                         case SSL_ERROR_WANT_WRITE:
1933                         case SSL_ERROR_WANT_READ:
1934                         case SSL_ERROR_WANT_X509_LOOKUP:
1935                                 continue;
1936                         case SSL_ERROR_SYSCALL:
1937                         case SSL_ERROR_SSL:
1938                         case SSL_ERROR_ZERO_RETURN:
1939                                 ret=1;
1940                                 goto err;
1941                                 /* break; */
1942                                 }
1943
1944                         SSL_renegotiate(con);
1945                         SSL_write(con,NULL,0);
1946                         }
1947
1948                 i=BIO_gets(io,buf,bufsize-1);
1949                 if (i < 0) /* error */
1950                         {
1951                         if (!BIO_should_retry(io))
1952                                 {
1953                                 if (!s_quiet)
1954                                         ERR_print_errors(bio_err);
1955                                 goto err;
1956                                 }
1957                         else
1958                                 {
1959                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1960 #if defined(OPENSSL_SYS_NETWARE)
1961             delay(1000);
1962 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
1963                                 sleep(1);
1964 #endif
1965                                 continue;
1966                                 }
1967                         }
1968                 else if (i == 0) /* end of input */
1969                         {
1970                         ret=1;
1971                         goto end;
1972                         }
1973
1974                 /* else we have data */
1975                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1976                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1977                         {
1978                         char *p;
1979                         X509 *peer;
1980                         STACK_OF(SSL_CIPHER) *sk;
1981                         static const char *space="                          ";
1982
1983                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1984                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1985                         BIO_puts(io,"<pre>\n");
1986 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1987                         BIO_puts(io,"\n");
1988                         for (i=0; i<local_argc; i++)
1989                                 {
1990                                 BIO_puts(io,local_argv[i]);
1991                                 BIO_write(io," ",1);
1992                                 }
1993                         BIO_puts(io,"\n");
1994
1995                         /* The following is evil and should not really
1996                          * be done */
1997                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1998                         sk=SSL_get_ciphers(con);
1999                         j=sk_SSL_CIPHER_num(sk);
2000                         for (i=0; i<j; i++)
2001                                 {
2002                                 c=sk_SSL_CIPHER_value(sk,i);
2003                                 BIO_printf(io,"%-11s:%-25s",
2004                                         SSL_CIPHER_get_version(c),
2005                                         SSL_CIPHER_get_name(c));
2006                                 if ((((i+1)%2) == 0) && (i+1 != j))
2007                                         BIO_puts(io,"\n");
2008                                 }
2009                         BIO_puts(io,"\n");
2010                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2011                         if (p != NULL)
2012                                 {
2013                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2014                                 j=i=0;
2015                                 while (*p)
2016                                         {
2017                                         if (*p == ':')
2018                                                 {
2019                                                 BIO_write(io,space,26-j);
2020                                                 i++;
2021                                                 j=0;
2022                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2023                                                 }
2024                                         else
2025                                                 {
2026                                                 BIO_write(io,p,1);
2027                                                 j++;
2028                                                 }
2029                                         p++;
2030                                         }
2031                                 BIO_puts(io,"\n");
2032                                 }
2033                         BIO_printf(io,((con->hit)
2034                                 ?"---\nReused, "
2035                                 :"---\nNew, "));
2036                         c=SSL_get_current_cipher(con);
2037                         BIO_printf(io,"%s, Cipher is %s\n",
2038                                 SSL_CIPHER_get_version(c),
2039                                 SSL_CIPHER_get_name(c));
2040                         SSL_SESSION_print(io,SSL_get_session(con));
2041                         BIO_printf(io,"---\n");
2042                         print_stats(io,SSL_get_SSL_CTX(con));
2043                         BIO_printf(io,"---\n");
2044                         peer=SSL_get_peer_certificate(con);
2045                         if (peer != NULL)
2046                                 {
2047                                 BIO_printf(io,"Client certificate\n");
2048                                 X509_print(io,peer);
2049                                 PEM_write_bio_X509(io,peer);
2050                                 }
2051                         else
2052                                 BIO_puts(io,"no client certificate available\n");
2053                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2054                         break;
2055                         }
2056                 else if ((www == 2 || www == 3)
2057                          && (strncmp("GET /",buf,5) == 0))
2058                         {
2059                         BIO *file;
2060                         char *p,*e;
2061                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2062
2063                         /* skip the '/' */
2064                         p= &(buf[5]);
2065
2066                         dot = 1;
2067                         for (e=p; *e != '\0'; e++)
2068                                 {
2069                                 if (e[0] == ' ')
2070                                         break;
2071
2072                                 switch (dot)
2073                                         {
2074                                 case 1:
2075                                         dot = (e[0] == '.') ? 2 : 0;
2076                                         break;
2077                                 case 2:
2078                                         dot = (e[0] == '.') ? 3 : 0;
2079                                         break;
2080                                 case 3:
2081                                         dot = (e[0] == '/') ? -1 : 0;
2082                                         break;
2083                                         }
2084                                 if (dot == 0)
2085                                         dot = (e[0] == '/') ? 1 : 0;
2086                                 }
2087                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2088
2089                         if (*e == '\0')
2090                                 {
2091                                 BIO_puts(io,text);
2092                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2093                                 break;
2094                                 }
2095                         *e='\0';
2096
2097                         if (dot)
2098                                 {
2099                                 BIO_puts(io,text);
2100                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2101                                 break;
2102                                 }
2103
2104                         if (*p == '/')
2105                                 {
2106                                 BIO_puts(io,text);
2107                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2108                                 break;
2109                                 }
2110
2111 #if 0
2112                         /* append if a directory lookup */
2113                         if (e[-1] == '/')
2114                                 strcat(p,"index.html");
2115 #endif
2116
2117                         /* if a directory, do the index thang */
2118                         if (stat(p,&st_buf) < 0)
2119                                 {
2120                                 BIO_puts(io,text);
2121                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
2122                                 ERR_print_errors(io);
2123                                 break;
2124                                 }
2125                         if (S_ISDIR(st_buf.st_mode))
2126                                 {
2127 #if 0 /* must check buffer size */
2128                                 strcat(p,"/index.html");
2129 #else
2130                                 BIO_puts(io,text);
2131                                 BIO_printf(io,"'%s' is a directory\r\n",p);
2132                                 break;
2133 #endif
2134                                 }
2135
2136                         if ((file=BIO_new_file(p,"r")) == NULL)
2137                                 {
2138                                 BIO_puts(io,text);
2139                                 BIO_printf(io,"Error opening '%s'\r\n",p);
2140                                 ERR_print_errors(io);
2141                                 break;
2142                                 }
2143
2144                         if (!s_quiet)
2145                                 BIO_printf(bio_err,"FILE:%s\n",p);
2146
2147                         if (www == 2)
2148                                 {
2149                                 i=strlen(p);
2150                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2151                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2152                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2153                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2154                                 else
2155                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2156                                 }
2157                         /* send the file */
2158                         total_bytes=0;
2159                         for (;;)
2160                                 {
2161                                 i=BIO_read(file,buf,bufsize);
2162                                 if (i <= 0) break;
2163
2164 #ifdef RENEG
2165                                 total_bytes+=i;
2166                                 fprintf(stderr,"%d\n",i);
2167                                 if (total_bytes > 3*1024)
2168                                         {
2169                                         total_bytes=0;
2170                                         fprintf(stderr,"RENEGOTIATE\n");
2171                                         SSL_renegotiate(con);
2172                                         }
2173 #endif
2174
2175                                 for (j=0; j<i; )
2176                                         {
2177 #ifdef RENEG
2178 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2179 #endif
2180                                         k=BIO_write(io,&(buf[j]),i-j);
2181                                         if (k <= 0)
2182                                                 {
2183                                                 if (!BIO_should_retry(io))
2184                                                         goto write_error;
2185                                                 else
2186                                                         {
2187                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2188                                                         }
2189                                                 }
2190                                         else
2191                                                 {
2192                                                 j+=k;
2193                                                 }
2194                                         }
2195                                 }
2196 write_error:
2197                         BIO_free(file);
2198                         break;
2199                         }
2200                 }
2201
2202         for (;;)
2203                 {
2204                 i=(int)BIO_flush(io);
2205                 if (i <= 0)
2206                         {
2207                         if (!BIO_should_retry(io))
2208                                 break;
2209                         }
2210                 else
2211                         break;
2212                 }
2213 end:
2214 #if 1
2215         /* make sure we re-use sessions */
2216         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2217 #else
2218         /* This kills performance */
2219 /*      SSL_shutdown(con); A shutdown gets sent in the
2220  *      BIO_free_all(io) procession */
2221 #endif
2222
2223 err:
2224
2225         if (ret >= 0)
2226                 BIO_printf(bio_s_out,"ACCEPT\n");
2227
2228         if (buf != NULL) OPENSSL_free(buf);
2229         if (io != NULL) BIO_free_all(io);
2230 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2231         return(ret);
2232         }
2233
2234 #ifndef OPENSSL_NO_RSA
2235 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2236         {
2237         BIGNUM *bn = NULL;
2238         static RSA *rsa_tmp=NULL;
2239
2240         if (!rsa_tmp && ((bn = BN_new()) == NULL))
2241                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
2242         if (!rsa_tmp && bn)
2243                 {
2244                 if (!s_quiet)
2245                         {
2246                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
2247                         (void)BIO_flush(bio_err);
2248                         }
2249                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2250                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
2251                         {
2252                         if(rsa_tmp) RSA_free(rsa_tmp);
2253                         rsa_tmp = NULL;
2254                         }
2255                 if (!s_quiet)
2256                         {
2257                         BIO_printf(bio_err,"\n");
2258                         (void)BIO_flush(bio_err);
2259                         }
2260                 BN_free(bn);
2261                 }
2262         return(rsa_tmp);
2263         }
2264 #endif
2265
2266 #define MAX_SESSION_ID_ATTEMPTS 10
2267 static int generate_session_id(const SSL *ssl, unsigned char *id,
2268                                 unsigned int *id_len)
2269         {
2270         unsigned int count = 0;
2271         do      {
2272                 RAND_pseudo_bytes(id, *id_len);
2273                 /* Prefix the session_id with the required prefix. NB: If our
2274                  * prefix is too long, clip it - but there will be worse effects
2275                  * anyway, eg. the server could only possibly create 1 session
2276                  * ID (ie. the prefix!) so all future session negotiations will
2277                  * fail due to conflicts. */
2278                 memcpy(id, session_id_prefix,
2279                         (strlen(session_id_prefix) < *id_len) ?
2280                         strlen(session_id_prefix) : *id_len);
2281                 }
2282         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
2283                 (++count < MAX_SESSION_ID_ATTEMPTS));
2284         if(count >= MAX_SESSION_ID_ATTEMPTS)
2285                 return 0;
2286         return 1;
2287         }