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) 1998-2006 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 <openssl/e_os2.h>
 129 #ifdef OPENSSL_NO_STDIO
 130 #define APPS_WIN16
 131 #endif
 132
 133 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
 134 #include <sys/types.h>
 135 #endif
 136
 137 /* With IPv6, it looks like Digital has mixed up the proper order of
 138    recursive header file inclusion, resulting in the compiler complaining
 139    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 140    is needed to have fileno() declared correctly...  So let's define u_int */
 141 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 142 #define __U_INT
 143 typedef unsigned int u_int;
 144 #endif
 145
 146 #include <openssl/lhash.h>
 147 #include <openssl/bn.h>
 148 #define USE_SOCKETS
 149 #include "apps.h"
 150 #include <openssl/err.h>
 151 #include <openssl/pem.h>
 152 #include <openssl/x509.h>
 153 #include <openssl/ssl.h>
 154 #include <openssl/rand.h>
 155 #ifndef OPENSSL_NO_DH
 156 #include <openssl/dh.h>
 157 #endif
 158 #ifndef OPENSSL_NO_RSA
 159 #include <openssl/rsa.h>
 160 #endif
 161 #include "s_apps.h"
 162 #include "timeouts.h"
 163
 164 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 165 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 166 #undef FIONBIO
 167 #endif
 168
 169 #ifndef OPENSSL_NO_RSA
 170 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 171 #endif
 172 static int sv_body(char *hostname, int s, unsigned char *context);
 173 static int www_body(char *hostname, int s, unsigned char *context);
 174 static void close_accept_socket(void );
 175 static void sv_usage(void);
 176 static int init_ssl_connection(SSL *s);
 177 static void print_stats(BIO *bp,SSL_CTX *ctx);
 178 static int generate_session_id(const SSL *ssl, unsigned char *id,
 179                                 unsigned int *id_len);
 180 #ifndef OPENSSL_NO_DH
 181 static DH *load_dh_param(const char *dhfile);
 182 static DH *get_dh512(void);
 183 #endif
 184
 185 #ifdef MONOLITH
 186 static void s_server_init(void);
 187 #endif
 188
 189 #ifndef OPENSSL_NO_DH
 190 static unsigned char dh512_p[]={
 191         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 192         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 193         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 194         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 195         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 196         0x47,0x74,0xE8,0x33,
 197         };
 198 static unsigned char dh512_g[]={
 199         0x02,
 200         };
 201
 202 static DH *get_dh512(void)
 203         {
 204         DH *dh=NULL;
 205
 206         if ((dh=DH_new()) == NULL) return(NULL);
 207         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 208         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 209         if ((dh->p == NULL) || (dh->g == NULL))
 210                 return(NULL);
 211         return(dh);
 212         }
 213 #endif
 214
 215
 216 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 217
 218 #undef BUFSIZZ
 219 #define BUFSIZZ 16*1024
 220 static int bufsize=BUFSIZZ;
 221 static int accept_socket= -1;
 222
 223 #define TEST_CERT       "server.pem"
 224 #ifndef OPENSSL_NO_TLSEXT
 225 #define TEST_CERT2      "server2.pem"
 226 #endif
 227 #undef PROG
 228 #define PROG            s_server_main
 229
 230 extern int verify_depth;
 231
 232 static char *cipher=NULL;
 233 static int s_server_verify=SSL_VERIFY_NONE;
 234 static int s_server_session_id_context = 1; /* anything will do */
 235 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 236 #ifndef OPENSSL_NO_TLSEXT
 237 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
 238 #endif
 239 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 240 #ifdef FIONBIO
 241 static int s_nbio=0;
 242 #endif
 243 static int s_nbio_test=0;
 244 int s_crlf=0;
 245 static SSL_CTX *ctx=NULL;
 246 #ifndef OPENSSL_NO_TLSEXT
 247 static SSL_CTX *ctx2=NULL;
 248 #endif
 249 static int www=0;
 250
 251 static BIO *bio_s_out=NULL;
 252 static int s_debug=0;
 253 static int s_msg=0;
 254 static int s_quiet=0;
 255
 256 static int hack=0;
 257 #ifndef OPENSSL_NO_ENGINE
 258 static char *engine_id=NULL;
 259 #endif
 260 static const char *session_id_prefix=NULL;
 261
 262 static int enable_timeouts = 0;
 263 static long socket_mtu;
 264 static int cert_chain = 0;
 265
 266
 267 #ifdef MONOLITH
 268 static void s_server_init(void)
 269         {
 270         accept_socket=-1;
 271         cipher=NULL;
 272         s_server_verify=SSL_VERIFY_NONE;
 273         s_dcert_file=NULL;
 274         s_dkey_file=NULL;
 275         s_cert_file=TEST_CERT;
 276         s_key_file=NULL;
 277 #ifndef OPENSSL_NO_TLSEXT
 278         s_cert_file2=TEST_CERT2;
 279         s_key_file2=NULL;
 280         ctx2=NULL;
 281 #endif
 282 #ifdef FIONBIO
 283         s_nbio=0;
 284 #endif
 285         s_nbio_test=0;
 286         ctx=NULL;
 287         www=0;
 288
 289         bio_s_out=NULL;
 290         s_debug=0;
 291         s_msg=0;
 292         s_quiet=0;
 293         hack=0;
 294 #ifndef OPENSSL_NO_ENGINE
 295         engine_id=NULL;
 296 #endif
 297         }
 298 #endif
 299
 300 static void sv_usage(void)
 301         {
 302         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 303         BIO_printf(bio_err,"\n");
 304         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 305         BIO_printf(bio_err," -context arg  - set session ID context\n");
 306         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 307         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 308         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 309         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 310         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 311         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 312         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 313         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 314         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 315         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 316         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 317         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 318         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 319         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 320         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 321         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 322 #ifndef OPENSSL_NO_ECDH
 323         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 324                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 325                            "                 (default is sect163r2).\n");
 326 #endif
 327 #ifdef FIONBIO
 328         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 329 #endif
 330         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 331         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 332         BIO_printf(bio_err," -debug        - Print more output\n");
 333         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 334         BIO_printf(bio_err," -state        - Print the SSL states\n");
 335         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 336         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 337         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 338         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 339         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 340         BIO_printf(bio_err," -quiet        - No server output\n");
 341         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 342         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 343         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 344         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 345         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 346         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 347         BIO_printf(bio_err," -mtu          - Set MTU\n");
 348         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 349         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 350         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 351         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 352 #ifndef OPENSSL_NO_DH
 353         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 354 #endif
 355 #ifndef OPENSSL_NO_ECDH
 356         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 357 #endif
 358         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 359         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 360         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 361         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 362         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 363 #ifndef OPENSSL_NO_ENGINE
 364         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 365 #endif
 366         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 367         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 368 #ifndef OPENSSL_NO_TLSEXT
 369         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 370         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 371         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 372         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 373         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 374 #endif
 375         }
 376
 377 static int local_argc=0;
 378 static char **local_argv;
 379
 380 #ifdef CHARSET_EBCDIC
 381 static int ebcdic_new(BIO *bi);
 382 static int ebcdic_free(BIO *a);
 383 static int ebcdic_read(BIO *b, char *out, int outl);
 384 static int ebcdic_write(BIO *b, const char *in, int inl);
 385 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 386 static int ebcdic_gets(BIO *bp, char *buf, int size);
 387 static int ebcdic_puts(BIO *bp, const char *str);
 388
 389 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 390 static BIO_METHOD methods_ebcdic=
 391         {
 392         BIO_TYPE_EBCDIC_FILTER,
 393         "EBCDIC/ASCII filter",
 394         ebcdic_write,
 395         ebcdic_read,
 396         ebcdic_puts,
 397         ebcdic_gets,
 398         ebcdic_ctrl,
 399         ebcdic_new,
 400         ebcdic_free,
 401         };
 402
 403 typedef struct
 404 {
 405         size_t  alloced;
 406         char    buff[1];
 407 } EBCDIC_OUTBUFF;
 408
 409 BIO_METHOD *BIO_f_ebcdic_filter()
 410 {
 411         return(&methods_ebcdic);
 412 }
 413
 414 static int ebcdic_new(BIO *bi)
 415 {
 416         EBCDIC_OUTBUFF *wbuf;
 417
 418         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 419         wbuf->alloced = 1024;
 420         wbuf->buff[0] = '\0';
 421
 422         bi->ptr=(char *)wbuf;
 423         bi->init=1;
 424         bi->flags=0;
 425         return(1);
 426 }
 427
 428 static int ebcdic_free(BIO *a)
 429 {
 430         if (a == NULL) return(0);
 431         if (a->ptr != NULL)
 432                 OPENSSL_free(a->ptr);
 433         a->ptr=NULL;
 434         a->init=0;
 435         a->flags=0;
 436         return(1);
 437 }
 438
 439 static int ebcdic_read(BIO *b, char *out, int outl)
 440 {
 441         int ret=0;
 442
 443         if (out == NULL || outl == 0) return(0);
 444         if (b->next_bio == NULL) return(0);
 445
 446         ret=BIO_read(b->next_bio,out,outl);
 447         if (ret > 0)
 448                 ascii2ebcdic(out,out,ret);
 449         return(ret);
 450 }
 451
 452 static int ebcdic_write(BIO *b, const char *in, int inl)
 453 {
 454         EBCDIC_OUTBUFF *wbuf;
 455         int ret=0;
 456         int num;
 457         unsigned char n;
 458
 459         if ((in == NULL) || (inl <= 0)) return(0);
 460         if (b->next_bio == NULL) return(0);
 461
 462         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 463
 464         if (inl > (num = wbuf->alloced))
 465         {
 466                 num = num + num;  /* double the size */
 467                 if (num < inl)
 468                         num = inl;
 469                 OPENSSL_free(wbuf);
 470                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 471
 472                 wbuf->alloced = num;
 473                 wbuf->buff[0] = '\0';
 474
 475                 b->ptr=(char *)wbuf;
 476         }
 477
 478         ebcdic2ascii(wbuf->buff, in, inl);
 479
 480         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 481
 482         return(ret);
 483 }
 484
 485 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 486 {
 487         long ret;
 488
 489         if (b->next_bio == NULL) return(0);
 490         switch (cmd)
 491         {
 492         case BIO_CTRL_DUP:
 493                 ret=0L;
 494                 break;
 495         default:
 496                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 497                 break;
 498         }
 499         return(ret);
 500 }
 501
 502 static int ebcdic_gets(BIO *bp, char *buf, int size)
 503 {
 504         int i, ret=0;
 505         if (bp->next_bio == NULL) return(0);
 506 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 507         for (i=0; i<size-1; ++i)
 508         {
 509                 ret = ebcdic_read(bp,&buf[i],1);
 510                 if (ret <= 0)
 511                         break;
 512                 else if (buf[i] == '\n')
 513                 {
 514                         ++i;
 515                         break;
 516                 }
 517         }
 518         if (i < size)
 519                 buf[i] = '\0';
 520         return (ret < 0 && i == 0) ? ret : i;
 521 }
 522
 523 static int ebcdic_puts(BIO *bp, const char *str)
 524 {
 525         if (bp->next_bio == NULL) return(0);
 526         return ebcdic_write(bp, str, strlen(str));
 527 }
 528 #endif
 529
 530 #ifndef OPENSSL_NO_TLSEXT
 531
 532 /* This is a context that we pass to callbacks */
 533 typedef struct tlsextctx_st {
 534    char * servername;
 535    BIO * biodebug;
 536 } tlsextctx;
 537
 538
 539 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 540         {
 541         tlsextctx * p = (tlsextctx *) arg;
 542         const char * servername = SSL_get_servername(s, TLSEXT_TYPE_SERVER_host);
 543         if (servername)
 544                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 545
 546         if (!p->servername)
 547                 {
 548                 SSL_set_tlsext_servername_done(s,2);
 549                 return SSL_ERROR_NONE;
 550                 }
 551
 552         if (servername)
 553                 {
 554                 if (strcmp(servername,p->servername))
 555                         return TLS1_AD_UNRECOGNIZED_NAME;
 556                 if (ctx2)
 557                         SSL_set_SSL_CTX(s,ctx2);
 558                 SSL_set_tlsext_servername_done(s,1);
 559                 }
 560         return SSL_ERROR_NONE;
 561 }
 562 #endif
 563
 564 int MAIN(int, char **);
 565
 566 int MAIN(int argc, char *argv[])
 567         {
 568         X509_STORE *store = NULL;
 569         int vflags = 0;
 570         short port=PORT;
 571         char *CApath=NULL,*CAfile=NULL;
 572         unsigned char *context = NULL;
 573         char *dhfile = NULL;
 574 #ifndef OPENSSL_NO_ECDH
 575         char *named_curve = NULL;
 576 #endif
 577         int badop=0,bugs=0;
 578         int ret=1;
 579         int off=0;
 580         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
 581         int state=0;
 582         const SSL_METHOD *meth=NULL;
 583         int socket_type=SOCK_STREAM;
 584 #ifndef OPENSSL_NO_ENGINE
 585         ENGINE *e=NULL;
 586 #endif
 587         char *inrand=NULL;
 588         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
 589         char *passarg = NULL, *pass = NULL;
 590         char *dpassarg = NULL, *dpass = NULL;
 591         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
 592         X509 *s_cert = NULL, *s_dcert = NULL;
 593         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
 594 #ifndef OPENSSL_NO_TLSEXT
 595         EVP_PKEY *s_key2 = NULL;
 596         X509 *s_cert2 = NULL;
 597 #endif
 598
 599 #ifndef OPENSSL_NO_TLSEXT
 600         tlsextctx tlsextcbp = {NULL, NULL};
 601 #endif
 602 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 603         meth=SSLv23_server_method();
 604 #elif !defined(OPENSSL_NO_SSL3)
 605         meth=SSLv3_server_method();
 606 #elif !defined(OPENSSL_NO_SSL2)
 607         meth=SSLv2_server_method();
 608 #endif
 609
 610         local_argc=argc;
 611         local_argv=argv;
 612
 613         apps_startup();
 614 #ifdef MONOLITH
 615         s_server_init();
 616 #endif
 617
 618         if (bio_err == NULL)
 619                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 620
 621         if (!load_config(bio_err, NULL))
 622                 goto end;
 623
 624         verify_depth=0;
 625 #ifdef FIONBIO
 626         s_nbio=0;
 627 #endif
 628         s_nbio_test=0;
 629
 630         argc--;
 631         argv++;
 632
 633         while (argc >= 1)
 634                 {
 635                 if      ((strcmp(*argv,"-port") == 0) ||
 636                          (strcmp(*argv,"-accept") == 0))
 637                         {
 638                         if (--argc < 1) goto bad;
 639                         if (!extract_port(*(++argv),&port))
 640                                 goto bad;
 641                         }
 642                 else if (strcmp(*argv,"-verify") == 0)
 643                         {
 644                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 645                         if (--argc < 1) goto bad;
 646                         verify_depth=atoi(*(++argv));
 647                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 648                         }
 649                 else if (strcmp(*argv,"-Verify") == 0)
 650                         {
 651                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 652                                 SSL_VERIFY_CLIENT_ONCE;
 653                         if (--argc < 1) goto bad;
 654                         verify_depth=atoi(*(++argv));
 655                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 656                         }
 657                 else if (strcmp(*argv,"-context") == 0)
 658                         {
 659                         if (--argc < 1) goto bad;
 660                         context= (unsigned char *)*(++argv);
 661                         }
 662                 else if (strcmp(*argv,"-cert") == 0)
 663                         {
 664                         if (--argc < 1) goto bad;
 665                         s_cert_file= *(++argv);
 666                         }
 667                 else if (strcmp(*argv,"-certform") == 0)
 668                         {
 669                         if (--argc < 1) goto bad;
 670                         s_cert_format = str2fmt(*(++argv));
 671                         }
 672                 else if (strcmp(*argv,"-key") == 0)
 673                         {
 674                         if (--argc < 1) goto bad;
 675                         s_key_file= *(++argv);
 676                         }
 677                 else if (strcmp(*argv,"-keyform") == 0)
 678                         {
 679                         if (--argc < 1) goto bad;
 680                         s_key_format = str2fmt(*(++argv));
 681                         }
 682                 else if (strcmp(*argv,"-pass") == 0)
 683                         {
 684                         if (--argc < 1) goto bad;
 685                         passarg = *(++argv);
 686                         }
 687                 else if (strcmp(*argv,"-dhparam") == 0)
 688                         {
 689                         if (--argc < 1) goto bad;
 690                         dhfile = *(++argv);
 691                         }
 692 #ifndef OPENSSL_NO_ECDH
 693                 else if (strcmp(*argv,"-named_curve") == 0)
 694                         {
 695                         if (--argc < 1) goto bad;
 696                         named_curve = *(++argv);
 697                         }
 698 #endif
 699                 else if (strcmp(*argv,"-dcertform") == 0)
 700                         {
 701                         if (--argc < 1) goto bad;
 702                         s_dcert_format = str2fmt(*(++argv));
 703                         }
 704                 else if (strcmp(*argv,"-dcert") == 0)
 705                         {
 706                         if (--argc < 1) goto bad;
 707                         s_dcert_file= *(++argv);
 708                         }
 709                 else if (strcmp(*argv,"-dkeyform") == 0)
 710                         {
 711                         if (--argc < 1) goto bad;
 712                         s_dkey_format = str2fmt(*(++argv));
 713                         }
 714                 else if (strcmp(*argv,"-dpass") == 0)
 715                         {
 716                         if (--argc < 1) goto bad;
 717                         dpassarg = *(++argv);
 718                         }
 719                 else if (strcmp(*argv,"-dkey") == 0)
 720                         {
 721                         if (--argc < 1) goto bad;
 722                         s_dkey_file= *(++argv);
 723                         }
 724                 else if (strcmp(*argv,"-nocert") == 0)
 725                         {
 726                         nocert=1;
 727                         }
 728                 else if (strcmp(*argv,"-CApath") == 0)
 729                         {
 730                         if (--argc < 1) goto bad;
 731                         CApath= *(++argv);
 732                         }
 733                 else if (strcmp(*argv,"-crl_check") == 0)
 734                         {
 735                         vflags |= X509_V_FLAG_CRL_CHECK;
 736                         }
 737                 else if (strcmp(*argv,"-crl_check") == 0)
 738                         {
 739                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 740                         }
 741                 else if (strcmp(*argv,"-serverpref") == 0)
 742                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
 743                 else if (strcmp(*argv,"-cipher") == 0)
 744                         {
 745                         if (--argc < 1) goto bad;
 746                         cipher= *(++argv);
 747                         }
 748                 else if (strcmp(*argv,"-CAfile") == 0)
 749                         {
 750                         if (--argc < 1) goto bad;
 751                         CAfile= *(++argv);
 752                         }
 753 #ifdef FIONBIO
 754                 else if (strcmp(*argv,"-nbio") == 0)
 755                         { s_nbio=1; }
 756 #endif
 757                 else if (strcmp(*argv,"-nbio_test") == 0)
 758                         {
 759 #ifdef FIONBIO
 760                         s_nbio=1;
 761 #endif
 762                         s_nbio_test=1;
 763                         }
 764                 else if (strcmp(*argv,"-debug") == 0)
 765                         { s_debug=1; }
 766                 else if (strcmp(*argv,"-msg") == 0)
 767                         { s_msg=1; }
 768                 else if (strcmp(*argv,"-hack") == 0)
 769                         { hack=1; }
 770                 else if (strcmp(*argv,"-state") == 0)
 771                         { state=1; }
 772                 else if (strcmp(*argv,"-crlf") == 0)
 773                         { s_crlf=1; }
 774                 else if (strcmp(*argv,"-quiet") == 0)
 775                         { s_quiet=1; }
 776                 else if (strcmp(*argv,"-bugs") == 0)
 777                         { bugs=1; }
 778                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 779                         { no_tmp_rsa=1; }
 780                 else if (strcmp(*argv,"-no_dhe") == 0)
 781                         { no_dhe=1; }
 782                 else if (strcmp(*argv,"-no_ecdhe") == 0)
 783                         { no_ecdhe=1; }
 784                 else if (strcmp(*argv,"-www") == 0)
 785                         { www=1; }
 786                 else if (strcmp(*argv,"-WWW") == 0)
 787                         { www=2; }
 788                 else if (strcmp(*argv,"-HTTP") == 0)
 789                         { www=3; }
 790                 else if (strcmp(*argv,"-no_ssl2") == 0)
 791                         { off|=SSL_OP_NO_SSLv2; }
 792                 else if (strcmp(*argv,"-no_ssl3") == 0)
 793                         { off|=SSL_OP_NO_SSLv3; }
 794                 else if (strcmp(*argv,"-no_tls1") == 0)
 795                         { off|=SSL_OP_NO_TLSv1; }
 796                 else if (strcmp(*argv,"-no_comp") == 0)
 797                         { off|=SSL_OP_NO_COMPRESSION; }
 798 #ifndef OPENSSL_NO_SSL2
 799                 else if (strcmp(*argv,"-ssl2") == 0)
 800                         { meth=SSLv2_server_method(); }
 801 #endif
 802 #ifndef OPENSSL_NO_SSL3
 803                 else if (strcmp(*argv,"-ssl3") == 0)
 804                         { meth=SSLv3_server_method(); }
 805 #endif
 806 #ifndef OPENSSL_NO_TLS1
 807                 else if (strcmp(*argv,"-tls1") == 0)
 808                         { meth=TLSv1_server_method(); }
 809 #endif
 810 #ifndef OPENSSL_NO_DTLS1
 811                 else if (strcmp(*argv,"-dtls1") == 0)
 812                         {
 813                         meth=DTLSv1_server_method();
 814                         socket_type = SOCK_DGRAM;
 815                         }
 816                 else if (strcmp(*argv,"-timeout") == 0)
 817                         enable_timeouts = 1;
 818                 else if (strcmp(*argv,"-mtu") == 0)
 819                         {
 820                         if (--argc < 1) goto bad;
 821                         socket_mtu = atol(*(++argv));
 822                         }
 823                 else if (strcmp(*argv, "-chain") == 0)
 824                         cert_chain = 1;
 825 #endif
 826                 else if (strcmp(*argv, "-id_prefix") == 0)
 827                         {
 828                         if (--argc < 1) goto bad;
 829                         session_id_prefix = *(++argv);
 830                         }
 831 #ifndef OPENSSL_NO_ENGINE
 832                 else if (strcmp(*argv,"-engine") == 0)
 833                         {
 834                         if (--argc < 1) goto bad;
 835                         engine_id= *(++argv);
 836                         }
 837 #endif
 838                 else if (strcmp(*argv,"-rand") == 0)
 839                         {
 840                         if (--argc < 1) goto bad;
 841                         inrand= *(++argv);
 842                         }
 843 #ifndef OPENSSL_NO_TLSEXT
 844                 else if (strcmp(*argv,"-servername") == 0)
 845                         {
 846                         if (--argc < 1) goto bad;
 847                         tlsextcbp.servername= *(++argv);
 848                         /* meth=TLSv1_server_method(); */
 849                         }
 850                 else if (strcmp(*argv,"-cert2") == 0)
 851                         {
 852                         if (--argc < 1) goto bad;
 853                         s_cert_file2= *(++argv);
 854                         }
 855                 else if (strcmp(*argv,"-key2") == 0)
 856                         {
 857                         if (--argc < 1) goto bad;
 858                         s_key_file2= *(++argv);
 859                         }
 860 #endif
 861                 else
 862                         {
 863                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 864                         badop=1;
 865                         break;
 866                         }
 867                 argc--;
 868                 argv++;
 869                 }
 870         if (badop)
 871                 {
 872 bad:
 873                 sv_usage();
 874                 goto end;
 875                 }
 876
 877         SSL_load_error_strings();
 878         OpenSSL_add_ssl_algorithms();
 879
 880 #ifndef OPENSSL_NO_ENGINE
 881         e = setup_engine(bio_err, engine_id, 1);
 882 #endif
 883
 884         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
 885                 {
 886                 BIO_printf(bio_err, "Error getting password\n");
 887                 goto end;
 888                 }
 889
 890
 891         if (s_key_file == NULL)
 892                 s_key_file = s_cert_file;
 893 #ifndef OPENSSL_NO_TLSEXT
 894         if (s_key_file2 == NULL)
 895                 s_key_file2 = s_cert_file2;
 896 #endif
 897
 898         if (nocert == 0)
 899                 {
 900                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
 901                        "server certificate private key file");
 902                 if (!s_key)
 903                         {
 904                         ERR_print_errors(bio_err);
 905                         goto end;
 906                         }
 907
 908                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
 909                         NULL, e, "server certificate file");
 910
 911                 if (!s_cert)
 912                         {
 913                         ERR_print_errors(bio_err);
 914                         goto end;
 915                         }
 916
 917 #ifndef OPENSSL_NO_TLSEXT
 918                 if (tlsextcbp.servername)
 919                         {
 920                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
 921                                 "second server certificate private key file");
 922                         if (!s_key2)
 923                                 {
 924                                 ERR_print_errors(bio_err);
 925                                 goto end;
 926                                 }
 927
 928                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
 929                                 NULL, e, "second server certificate file");
 930
 931                         if (!s_cert2)
 932                                 {
 933                                 ERR_print_errors(bio_err);
 934                                 goto end;
 935                                 }
 936                         }
 937 #endif
 938                 }
 939
 940
 941         if (s_dcert_file)
 942                 {
 943
 944                 if (s_dkey_file == NULL)
 945                         s_dkey_file = s_dcert_file;
 946
 947                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
 948                                 0, dpass, e,
 949                                "second certificate private key file");
 950                 if (!s_dkey)
 951                         {
 952                         ERR_print_errors(bio_err);
 953                         goto end;
 954                         }
 955
 956                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
 957                                 NULL, e, "second server certificate file");
 958
 959                 if (!s_dcert)
 960                         {
 961                         ERR_print_errors(bio_err);
 962                         goto end;
 963                         }
 964
 965                 }
 966
 967         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 968                 && !RAND_status())
 969                 {
 970                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 971                 }
 972         if (inrand != NULL)
 973                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 974                         app_RAND_load_files(inrand));
 975
 976         if (bio_s_out == NULL)
 977                 {
 978                 if (s_quiet && !s_debug && !s_msg)
 979                         {
 980                         bio_s_out=BIO_new(BIO_s_null());
 981                         }
 982                 else
 983                         {
 984                         if (bio_s_out == NULL)
 985                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 986                         }
 987                 }
 988
 989 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
 990         if (nocert)
 991 #endif
 992                 {
 993                 s_cert_file=NULL;
 994                 s_key_file=NULL;
 995                 s_dcert_file=NULL;
 996                 s_dkey_file=NULL;
 997 #ifndef OPENSSL_NO_TLSEXT
 998                 s_cert_file2=NULL;
 999                 s_key_file2=NULL;
1000 #endif
1001                 }
1002
1003         ctx=SSL_CTX_new(meth);
1004         if (ctx == NULL)
1005                 {
1006                 ERR_print_errors(bio_err);
1007                 goto end;
1008                 }
1009         if (session_id_prefix)
1010                 {
1011                 if(strlen(session_id_prefix) >= 32)
1012                         BIO_printf(bio_err,
1013 "warning: id_prefix is too long, only one new session will be possible\n");
1014                 else if(strlen(session_id_prefix) >= 16)
1015                         BIO_printf(bio_err,
1016 "warning: id_prefix is too long if you use SSLv2\n");
1017                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1018                         {
1019                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1020                         ERR_print_errors(bio_err);
1021                         goto end;
1022                         }
1023                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1024                 }
1025         SSL_CTX_set_quiet_shutdown(ctx,1);
1026         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1027         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1028         SSL_CTX_set_options(ctx,off);
1029         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1030          * Setting read ahead solves this problem.
1031          */
1032         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1033
1034         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1035
1036         SSL_CTX_sess_set_cache_size(ctx,128);
1037
1038 #if 0
1039         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1040 #endif
1041
1042 #if 0
1043         if (s_cert_file == NULL)
1044                 {
1045                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1046                 goto end;
1047                 }
1048 #endif
1049
1050         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1051                 (!SSL_CTX_set_default_verify_paths(ctx)))
1052                 {
1053                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1054                 ERR_print_errors(bio_err);
1055                 /* goto end; */
1056                 }
1057         store = SSL_CTX_get_cert_store(ctx);
1058         X509_STORE_set_flags(store, vflags);
1059
1060 #ifndef OPENSSL_NO_TLSEXT
1061         if (s_cert2)
1062                 {
1063                 ctx2=SSL_CTX_new(meth);
1064                 if (ctx2 == NULL)
1065                         {
1066                         ERR_print_errors(bio_err);
1067                         goto end;
1068                         }
1069                 }
1070
1071         if (ctx2)
1072                 {
1073                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1074
1075                 if (session_id_prefix)
1076                         {
1077                         if(strlen(session_id_prefix) >= 32)
1078                                 BIO_printf(bio_err,
1079                                         "warning: id_prefix is too long, only one new session will be possible\n");
1080                         else if(strlen(session_id_prefix) >= 16)
1081                                 BIO_printf(bio_err,
1082                                         "warning: id_prefix is too long if you use SSLv2\n");
1083                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1084                                 {
1085                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1086                                 ERR_print_errors(bio_err);
1087                                 goto end;
1088                                 }
1089                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1090                         }
1091                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1092                 if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1093                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1094                 SSL_CTX_set_options(ctx2,off);
1095                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1096                  * Setting read ahead solves this problem.
1097                  */
1098                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1099
1100                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1101
1102                 SSL_CTX_sess_set_cache_size(ctx2,128);
1103
1104                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1105                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1106                         {
1107                         ERR_print_errors(bio_err);
1108                         }
1109                 store = SSL_CTX_get_cert_store(ctx2);
1110                 X509_STORE_set_flags(store, vflags);
1111                 }
1112 #endif
1113
1114 #ifndef OPENSSL_NO_DH
1115         if (!no_dhe)
1116                 {
1117                 DH *dh=NULL;
1118
1119                 if (dhfile)
1120                         dh = load_dh_param(dhfile);
1121                 else if (s_cert_file)
1122                         dh = load_dh_param(s_cert_file);
1123
1124                 if (dh != NULL)
1125                         {
1126                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1127                         }
1128                 else
1129                         {
1130                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1131                         dh=get_dh512();
1132                         }
1133                 (void)BIO_flush(bio_s_out);
1134
1135                 SSL_CTX_set_tmp_dh(ctx,dh);
1136 #ifndef OPENSSL_NO_TLSEXT
1137                 if (ctx2)
1138                         {
1139                         if (!dhfile)
1140                                 {
1141                                 DH *dh2=load_dh_param(s_cert_file2);
1142                                 if (dh2 != NULL)
1143                                         {
1144                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1145                                         (void)BIO_flush(bio_s_out);
1146
1147                                         DH_free(dh);
1148                                         dh = dh2;
1149                                         }
1150                                 }
1151                         SSL_CTX_set_tmp_dh(ctx2,dh);
1152                         }
1153 #endif
1154                 DH_free(dh);
1155                 }
1156 #endif
1157
1158 #ifndef OPENSSL_NO_ECDH
1159         if (!no_ecdhe)
1160                 {
1161                 EC_KEY *ecdh=NULL;
1162
1163                 if (named_curve)
1164                         {
1165                         int nid = OBJ_sn2nid(named_curve);
1166
1167                         if (nid == 0)
1168                                 {
1169                                 BIO_printf(bio_err, "unknown curve name (%s)\n",
1170                                         named_curve);
1171                                 goto end;
1172                                 }
1173                         ecdh = EC_KEY_new_by_curve_name(nid);
1174                         if (ecdh == NULL)
1175                                 {
1176                                 BIO_printf(bio_err, "unable to create curve (%s)\n",
1177                                         named_curve);
1178                                 goto end;
1179                                 }
1180                         }
1181
1182                 if (ecdh != NULL)
1183                         {
1184                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1185                         }
1186                 else
1187                         {
1188                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1189                         ecdh = EC_KEY_new_by_curve_name(NID_sect163r2);
1190                         if (ecdh == NULL)
1191                                 {
1192                                 BIO_printf(bio_err, "unable to create curve (sect163r2)\n");
1193                                 goto end;
1194                                 }
1195                         }
1196                 (void)BIO_flush(bio_s_out);
1197
1198                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1199 #ifndef OPENSSL_NO_TLSEXT
1200                 if (ctx2)
1201                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1202 #endif
1203                 EC_KEY_free(ecdh);
1204                 }
1205 #endif
1206
1207         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1208                 goto end;
1209 #ifndef OPENSSL_NO_TLSEXT
1210         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1211                 goto end;
1212 #endif
1213         if (s_dcert != NULL)
1214                 {
1215                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1216                         goto end;
1217                 }
1218
1219 #ifndef OPENSSL_NO_RSA
1220 #if 1
1221         if (!no_tmp_rsa)
1222                 {
1223                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1224 #ifndef OPENSSL_NO_TLSEXT
1225                 if (ctx2)
1226                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1227 #endif
1228                 }
1229 #else
1230         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1231                 {
1232                 RSA *rsa;
1233
1234                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1235                 BIO_flush(bio_s_out);
1236
1237                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1238
1239                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1240                         {
1241                         ERR_print_errors(bio_err);
1242                         goto end;
1243                         }
1244 #ifndef OPENSSL_NO_TLSEXT
1245                         if (ctx2)
1246                                 {
1247                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1248                                         {
1249                                         ERR_print_errors(bio_err);
1250                                         goto end;
1251                                         }
1252                                 }
1253 #endif
1254                 RSA_free(rsa);
1255                 BIO_printf(bio_s_out,"\n");
1256                 }
1257 #endif
1258 #endif
1259
1260         if (cipher != NULL) {
1261                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1262                         BIO_printf(bio_err,"error setting cipher list\n");
1263                         ERR_print_errors(bio_err);
1264                         goto end;
1265                 }
1266 #ifndef OPENSSL_NO_TLSEXT
1267                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1268                         {
1269                         BIO_printf(bio_err,"error setting cipher list\n");
1270                         ERR_print_errors(bio_err);
1271                         goto end;
1272                         }
1273 #endif
1274         }
1275         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1276         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1277                 sizeof s_server_session_id_context);
1278
1279 #ifndef OPENSSL_NO_TLSEXT
1280         if (ctx2)
1281                 {
1282                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1283                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1284                         sizeof s_server_session_id_context);
1285
1286                 }
1287         tlsextcbp.biodebug = bio_s_out;
1288         SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1289         SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1290         SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1291         SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1292 #endif
1293         if (CAfile != NULL)
1294                 {
1295                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1296 #ifndef OPENSSL_NO_TLSEXT
1297                 if (ctx2)
1298                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1299 #endif
1300                 }
1301
1302         BIO_printf(bio_s_out,"ACCEPT\n");
1303         if (www)
1304                 do_server(port,socket_type,&accept_socket,www_body, context);
1305         else
1306                 do_server(port,socket_type,&accept_socket,sv_body, context);
1307         print_stats(bio_s_out,ctx);
1308         ret=0;
1309 end:
1310         if (ctx != NULL) SSL_CTX_free(ctx);
1311         if (s_cert)
1312                 X509_free(s_cert);
1313         if (s_dcert)
1314                 X509_free(s_dcert);
1315         if (s_key)
1316                 EVP_PKEY_free(s_key);
1317         if (s_dkey)
1318                 EVP_PKEY_free(s_dkey);
1319         if (pass)
1320                 OPENSSL_free(pass);
1321         if (dpass)
1322                 OPENSSL_free(dpass);
1323 #ifndef OPENSSL_NO_TLSEXT
1324         if (ctx2 != NULL) SSL_CTX_free(ctx2);
1325         if (s_cert2)
1326                 X509_free(s_cert2);
1327         if (s_key2)
1328                 EVP_PKEY_free(s_key2);
1329 #endif
1330         if (bio_s_out != NULL)
1331                 {
1332         BIO_free(bio_s_out);
1333                 bio_s_out=NULL;
1334                 }
1335         apps_shutdown();
1336         OPENSSL_EXIT(ret);
1337         }
1338
1339 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1340         {
1341         BIO_printf(bio,"%4ld items in the session cache\n",
1342                 SSL_CTX_sess_number(ssl_ctx));
1343         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1344                 SSL_CTX_sess_connect(ssl_ctx));
1345         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1346                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1347         BIO_printf(bio,"%4ld client connects that finished\n",
1348                 SSL_CTX_sess_connect_good(ssl_ctx));
1349         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1350                 SSL_CTX_sess_accept(ssl_ctx));
1351         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1352                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1353         BIO_printf(bio,"%4ld server accepts that finished\n",
1354                 SSL_CTX_sess_accept_good(ssl_ctx));
1355         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1356         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1357         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1358         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1359         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1360                 SSL_CTX_sess_cache_full(ssl_ctx),
1361                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1362         }
1363
1364 static int sv_body(char *hostname, int s, unsigned char *context)
1365         {
1366         char *buf=NULL;
1367         fd_set readfds;
1368         int ret=1,width;
1369         int k,i;
1370         unsigned long l;
1371         SSL *con=NULL;
1372         BIO *sbio;
1373 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1374         struct timeval tv;
1375 #endif
1376
1377         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1378                 {
1379                 BIO_printf(bio_err,"out of memory\n");
1380                 goto err;
1381                 }
1382 #ifdef FIONBIO
1383         if (s_nbio)
1384                 {
1385                 unsigned long sl=1;
1386
1387                 if (!s_quiet)
1388                         BIO_printf(bio_err,"turning on non blocking io\n");
1389                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1390                         ERR_print_errors(bio_err);
1391                 }
1392 #endif
1393
1394         if (con == NULL) {
1395                 con=SSL_new(ctx);
1396 #ifndef OPENSSL_NO_KRB5
1397                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1398                         {
1399                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
1400                                                                 KRB5SVC);
1401                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
1402                                                                 KRB5KEYTAB);
1403                         }
1404 #endif  /* OPENSSL_NO_KRB5 */
1405                 if(context)
1406                       SSL_set_session_id_context(con, context,
1407                                                  strlen((char *)context));
1408         }
1409         SSL_clear(con);
1410
1411         if (SSL_version(con) == DTLS1_VERSION)
1412                 {
1413                 struct timeval timeout;
1414
1415                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1416
1417                 if (enable_timeouts)
1418                         {
1419                         timeout.tv_sec = 0;
1420                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1421                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1422
1423                         timeout.tv_sec = 0;
1424                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1425                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1426                         }
1427
1428                 if (socket_mtu > 0)
1429                         {
1430                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1431                         SSL_set_mtu(con, socket_mtu);
1432                         }
1433                 else
1434                         /* want to do MTU discovery */
1435                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1436
1437         /* turn on cookie exchange */
1438         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
1439                 }
1440         else
1441                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1442
1443         if (s_nbio_test)
1444                 {
1445                 BIO *test;
1446
1447                 test=BIO_new(BIO_f_nbio_test());
1448                 sbio=BIO_push(test,sbio);
1449                 }
1450         SSL_set_bio(con,sbio,sbio);
1451         SSL_set_accept_state(con);
1452         /* SSL_set_fd(con,s); */
1453
1454         if (s_debug)
1455                 {
1456                 con->debug=1;
1457                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1458                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1459                 }
1460         if (s_msg)
1461                 {
1462                 SSL_set_msg_callback(con, msg_cb);
1463                 SSL_set_msg_callback_arg(con, bio_s_out);
1464                 }
1465
1466         width=s+1;
1467         for (;;)
1468                 {
1469                 int read_from_terminal;
1470                 int read_from_sslcon;
1471
1472                 read_from_terminal = 0;
1473                 read_from_sslcon = SSL_pending(con);
1474
1475                 if (!read_from_sslcon)
1476                         {
1477                         FD_ZERO(&readfds);
1478 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1479                         FD_SET(fileno(stdin),&readfds);
1480 #endif
1481                         FD_SET(s,&readfds);
1482                         /* Note: under VMS with SOCKETSHR the second parameter is
1483                          * currently of type (int *) whereas under other systems
1484                          * it is (void *) if you don't have a cast it will choke
1485                          * the compiler: if you do have a cast then you can either
1486                          * go for (int *) or (void *).
1487                          */
1488 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1489                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
1490                          * on sockets. As a workaround we timeout the select every
1491                          * second and check for any keypress. In a proper Windows
1492                          * application we wouldn't do this because it is inefficient.
1493                          */
1494                         tv.tv_sec = 1;
1495                         tv.tv_usec = 0;
1496                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
1497                         if((i < 0) || (!i && !_kbhit() ) )continue;
1498                         if(_kbhit())
1499                                 read_from_terminal = 1;
1500 #else
1501                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
1502                         if (i <= 0) continue;
1503                         if (FD_ISSET(fileno(stdin),&readfds))
1504                                 read_from_terminal = 1;
1505 #endif
1506                         if (FD_ISSET(s,&readfds))
1507                                 read_from_sslcon = 1;
1508                         }
1509                 if (read_from_terminal)
1510                         {
1511                         if (s_crlf)
1512                                 {
1513                                 int j, lf_num;
1514
1515                                 i=raw_read_stdin(buf, bufsize/2);
1516                                 lf_num = 0;
1517                                 /* both loops are skipped when i <= 0 */
1518                                 for (j = 0; j < i; j++)
1519                                         if (buf[j] == '\n')
1520                                                 lf_num++;
1521                                 for (j = i-1; j >= 0; j--)
1522                                         {
1523                                         buf[j+lf_num] = buf[j];
1524                                         if (buf[j] == '\n')
1525                                                 {
1526                                                 lf_num--;
1527                                                 i++;
1528                                                 buf[j+lf_num] = '\r';
1529                                                 }
1530                                         }
1531                                 assert(lf_num == 0);
1532                                 }
1533                         else
1534                                 i=raw_read_stdin(buf,bufsize);
1535                         if (!s_quiet)
1536                                 {
1537                                 if ((i <= 0) || (buf[0] == 'Q'))
1538                                         {
1539                                         BIO_printf(bio_s_out,"DONE\n");
1540                                         SHUTDOWN(s);
1541                                         close_accept_socket();
1542                                         ret= -11;
1543                                         goto err;
1544                                         }
1545                                 if ((i <= 0) || (buf[0] == 'q'))
1546                                         {
1547                                         BIO_printf(bio_s_out,"DONE\n");
1548                                         if (SSL_version(con) != DTLS1_VERSION)
1549                         SHUTDOWN(s);
1550         /*                              close_accept_socket();
1551                                         ret= -11;*/
1552                                         goto err;
1553                                         }
1554                                 if ((buf[0] == 'r') &&
1555                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1556                                         {
1557                                         SSL_renegotiate(con);
1558                                         i=SSL_do_handshake(con);
1559                                         printf("SSL_do_handshake -> %d\n",i);
1560                                         i=0; /*13; */
1561                                         continue;
1562                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1563                                         }
1564                                 if ((buf[0] == 'R') &&
1565                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1566                                         {
1567                                         SSL_set_verify(con,
1568                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1569                                         SSL_renegotiate(con);
1570                                         i=SSL_do_handshake(con);
1571                                         printf("SSL_do_handshake -> %d\n",i);
1572                                         i=0; /* 13; */
1573                                         continue;
1574                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1575                                         }
1576                                 if (buf[0] == 'P')
1577                                         {
1578                                         static const char *str="Lets print some clear text\n";
1579                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1580                                         }
1581                                 if (buf[0] == 'S')
1582                                         {
1583                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1584                                         }
1585                                 }
1586 #ifdef CHARSET_EBCDIC
1587                         ebcdic2ascii(buf,buf,i);
1588 #endif
1589                         l=k=0;
1590                         for (;;)
1591                                 {
1592                                 /* should do a select for the write */
1593 #ifdef RENEG
1594 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1595 #endif
1596                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1597                                 switch (SSL_get_error(con,k))
1598                                         {
1599                                 case SSL_ERROR_NONE:
1600                                         break;
1601                                 case SSL_ERROR_WANT_WRITE:
1602                                 case SSL_ERROR_WANT_READ:
1603                                 case SSL_ERROR_WANT_X509_LOOKUP:
1604                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1605                                         break;
1606                                 case SSL_ERROR_SYSCALL:
1607                                 case SSL_ERROR_SSL:
1608                                         BIO_printf(bio_s_out,"ERROR\n");
1609                                         ERR_print_errors(bio_err);
1610                                         ret=1;
1611                                         goto err;
1612                                         /* break; */
1613                                 case SSL_ERROR_ZERO_RETURN:
1614                                         BIO_printf(bio_s_out,"DONE\n");
1615                                         ret=1;
1616                                         goto err;
1617                                         }
1618                                 l+=k;
1619                                 i-=k;
1620                                 if (i <= 0) break;
1621                                 }
1622                         }
1623                 if (read_from_sslcon)
1624                         {
1625                         if (!SSL_is_init_finished(con))
1626                                 {
1627                                 i=init_ssl_connection(con);
1628
1629                                 if (i < 0)
1630                                         {
1631                                         ret=0;
1632                                         goto err;
1633                                         }
1634                                 else if (i == 0)
1635                                         {
1636                                         ret=1;
1637                                         goto err;
1638                                         }
1639                                 }
1640                         else
1641                                 {
1642 again:
1643                                 i=SSL_read(con,(char *)buf,bufsize);
1644                                 switch (SSL_get_error(con,i))
1645                                         {
1646                                 case SSL_ERROR_NONE:
1647 #ifdef CHARSET_EBCDIC
1648                                         ascii2ebcdic(buf,buf,i);
1649 #endif
1650                                         raw_write_stdout(buf,
1651                                                 (unsigned int)i);
1652                                         if (SSL_pending(con)) goto again;
1653                                         break;
1654                                 case SSL_ERROR_WANT_WRITE:
1655                                 case SSL_ERROR_WANT_READ:
1656                                 case SSL_ERROR_WANT_X509_LOOKUP:
1657                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1658                                         break;
1659                                 case SSL_ERROR_SYSCALL:
1660                                 case SSL_ERROR_SSL:
1661                                         BIO_printf(bio_s_out,"ERROR\n");
1662                                         ERR_print_errors(bio_err);
1663                                         ret=1;
1664                                         goto err;
1665                                 case SSL_ERROR_ZERO_RETURN:
1666                                         BIO_printf(bio_s_out,"DONE\n");
1667                                         ret=1;
1668                                         goto err;
1669                                         }
1670                                 }
1671                         }
1672                 }
1673 err:
1674         BIO_printf(bio_s_out,"shutting down SSL\n");
1675 #if 1
1676         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1677 #else
1678         SSL_shutdown(con);
1679 #endif
1680         if (con != NULL) SSL_free(con);
1681         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1682         if (buf != NULL)
1683                 {
1684                 OPENSSL_cleanse(buf,bufsize);
1685                 OPENSSL_free(buf);
1686                 }
1687         if (ret >= 0)
1688                 BIO_printf(bio_s_out,"ACCEPT\n");
1689         return(ret);
1690         }
1691
1692 static void close_accept_socket(void)
1693         {
1694         BIO_printf(bio_err,"shutdown accept socket\n");
1695         if (accept_socket >= 0)
1696                 {
1697                 SHUTDOWN2(accept_socket);
1698                 }
1699         }
1700
1701 static int init_ssl_connection(SSL *con)
1702         {
1703         int i;
1704         const char *str;
1705         X509 *peer;
1706         long verify_error;
1707         MS_STATIC char buf[BUFSIZ];
1708
1709         if ((i=SSL_accept(con)) <= 0)
1710                 {
1711                 if (BIO_sock_should_retry(i))
1712                         {
1713                         BIO_printf(bio_s_out,"DELAY\n");
1714                         return(1);
1715                         }
1716
1717                 BIO_printf(bio_err,"ERROR\n");
1718                 verify_error=SSL_get_verify_result(con);
1719                 if (verify_error != X509_V_OK)
1720                         {
1721                         BIO_printf(bio_err,"verify error:%s\n",
1722                                 X509_verify_cert_error_string(verify_error));
1723                         }
1724                 else
1725                         ERR_print_errors(bio_err);
1726                 return(0);
1727                 }
1728
1729         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1730
1731         peer=SSL_get_peer_certificate(con);
1732         if (peer != NULL)
1733                 {
1734                 BIO_printf(bio_s_out,"Client certificate\n");
1735                 PEM_write_bio_X509(bio_s_out,peer);
1736                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
1737                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1738                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
1739                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1740                 X509_free(peer);
1741                 }
1742
1743         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
1744                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1745         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1746         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1747         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1748         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1749                 TLS1_FLAGS_TLS_PADDING_BUG)
1750                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1751 #ifndef OPENSSL_NO_KRB5
1752         if (con->kssl_ctx->client_princ != NULL)
1753                 {
1754                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
1755                         con->kssl_ctx->client_princ);
1756                 }
1757 #endif /* OPENSSL_NO_KRB5 */
1758         return(1);
1759         }
1760
1761 #ifndef OPENSSL_NO_DH
1762 static DH *load_dh_param(const char *dhfile)
1763         {
1764         DH *ret=NULL;
1765         BIO *bio;
1766
1767         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1768                 goto err;
1769         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1770 err:
1771         if (bio != NULL) BIO_free(bio);
1772         return(ret);
1773         }
1774 #endif
1775
1776 #if 0
1777 static int load_CA(SSL_CTX *ctx, char *file)
1778         {
1779         FILE *in;
1780         X509 *x=NULL;
1781
1782         if ((in=fopen(file,"r")) == NULL)
1783                 return(0);
1784
1785         for (;;)
1786                 {
1787                 if (PEM_read_X509(in,&x,NULL) == NULL)
1788                         break;
1789                 SSL_CTX_add_client_CA(ctx,x);
1790                 }
1791         if (x != NULL) X509_free(x);
1792         fclose(in);
1793         return(1);
1794         }
1795 #endif
1796
1797 static int www_body(char *hostname, int s, unsigned char *context)
1798         {
1799         char *buf=NULL;
1800         int ret=1;
1801         int i,j,k,blank,dot;
1802         SSL *con;
1803         SSL_CIPHER *c;
1804         BIO *io,*ssl_bio,*sbio;
1805         long total_bytes;
1806
1807         buf=OPENSSL_malloc(bufsize);
1808         if (buf == NULL) return(0);
1809         io=BIO_new(BIO_f_buffer());
1810         ssl_bio=BIO_new(BIO_f_ssl());
1811         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1812
1813 #ifdef FIONBIO
1814         if (s_nbio)
1815                 {
1816                 unsigned long sl=1;
1817
1818                 if (!s_quiet)
1819                         BIO_printf(bio_err,"turning on non blocking io\n");
1820                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1821                         ERR_print_errors(bio_err);
1822                 }
1823 #endif
1824
1825         /* lets make the output buffer a reasonable size */
1826         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1827
1828         if ((con=SSL_new(ctx)) == NULL) goto err;
1829 #ifndef OPENSSL_NO_KRB5
1830         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1831                 {
1832                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
1833                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
1834                 }
1835 #endif  /* OPENSSL_NO_KRB5 */
1836         if(context) SSL_set_session_id_context(con, context,
1837                                                strlen((char *)context));
1838
1839         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1840         if (s_nbio_test)
1841                 {
1842                 BIO *test;
1843
1844                 test=BIO_new(BIO_f_nbio_test());
1845                 sbio=BIO_push(test,sbio);
1846                 }
1847         SSL_set_bio(con,sbio,sbio);
1848         SSL_set_accept_state(con);
1849
1850         /* SSL_set_fd(con,s); */
1851         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1852         BIO_push(io,ssl_bio);
1853 #ifdef CHARSET_EBCDIC
1854         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1855 #endif
1856
1857         if (s_debug)
1858                 {
1859                 con->debug=1;
1860                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1861                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1862                 }
1863         if (s_msg)
1864                 {
1865                 SSL_set_msg_callback(con, msg_cb);
1866                 SSL_set_msg_callback_arg(con, bio_s_out);
1867                 }
1868
1869         blank=0;
1870         for (;;)
1871                 {
1872                 if (hack)
1873                         {
1874                         i=SSL_accept(con);
1875
1876                         switch (SSL_get_error(con,i))
1877                                 {
1878                         case SSL_ERROR_NONE:
1879                                 break;
1880                         case SSL_ERROR_WANT_WRITE:
1881                         case SSL_ERROR_WANT_READ:
1882                         case SSL_ERROR_WANT_X509_LOOKUP:
1883                                 continue;
1884                         case SSL_ERROR_SYSCALL:
1885                         case SSL_ERROR_SSL:
1886                         case SSL_ERROR_ZERO_RETURN:
1887                                 ret=1;
1888                                 goto err;
1889                                 /* break; */
1890                                 }
1891
1892                         SSL_renegotiate(con);
1893                         SSL_write(con,NULL,0);
1894                         }
1895
1896                 i=BIO_gets(io,buf,bufsize-1);
1897                 if (i < 0) /* error */
1898                         {
1899                         if (!BIO_should_retry(io))
1900                                 {
1901                                 if (!s_quiet)
1902                                         ERR_print_errors(bio_err);
1903                                 goto err;
1904                                 }
1905                         else
1906                                 {
1907                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1908 #if defined(OPENSSL_SYS_NETWARE)
1909             delay(1000);
1910 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
1911                                 sleep(1);
1912 #endif
1913                                 continue;
1914                                 }
1915                         }
1916                 else if (i == 0) /* end of input */
1917                         {
1918                         ret=1;
1919                         goto end;
1920                         }
1921
1922                 /* else we have data */
1923                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1924                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1925                         {
1926                         char *p;
1927                         X509 *peer;
1928                         STACK_OF(SSL_CIPHER) *sk;
1929                         static const char *space="                          ";
1930
1931                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1932                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1933                         BIO_puts(io,"<pre>\n");
1934 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1935                         BIO_puts(io,"\n");
1936                         for (i=0; i<local_argc; i++)
1937                                 {
1938                                 BIO_puts(io,local_argv[i]);
1939                                 BIO_write(io," ",1);
1940                                 }
1941                         BIO_puts(io,"\n");
1942
1943                         /* The following is evil and should not really
1944                          * be done */
1945                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1946                         sk=SSL_get_ciphers(con);
1947                         j=sk_SSL_CIPHER_num(sk);
1948                         for (i=0; i<j; i++)
1949                                 {
1950                                 c=sk_SSL_CIPHER_value(sk,i);
1951                                 BIO_printf(io,"%-11s:%-25s",
1952                                         SSL_CIPHER_get_version(c),
1953                                         SSL_CIPHER_get_name(c));
1954                                 if ((((i+1)%2) == 0) && (i+1 != j))
1955                                         BIO_puts(io,"\n");
1956                                 }
1957                         BIO_puts(io,"\n");
1958                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1959                         if (p != NULL)
1960                                 {
1961                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1962                                 j=i=0;
1963                                 while (*p)
1964                                         {
1965                                         if (*p == ':')
1966                                                 {
1967                                                 BIO_write(io,space,26-j);
1968                                                 i++;
1969                                                 j=0;
1970                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1971                                                 }
1972                                         else
1973                                                 {
1974                                                 BIO_write(io,p,1);
1975                                                 j++;
1976                                                 }
1977                                         p++;
1978                                         }
1979                                 BIO_puts(io,"\n");
1980                                 }
1981                         BIO_printf(io,((con->hit)
1982                                 ?"---\nReused, "
1983                                 :"---\nNew, "));
1984                         c=SSL_get_current_cipher(con);
1985                         BIO_printf(io,"%s, Cipher is %s\n",
1986                                 SSL_CIPHER_get_version(c),
1987                                 SSL_CIPHER_get_name(c));
1988                         SSL_SESSION_print(io,SSL_get_session(con));
1989                         BIO_printf(io,"---\n");
1990                         print_stats(io,SSL_get_SSL_CTX(con));
1991                         BIO_printf(io,"---\n");
1992                         peer=SSL_get_peer_certificate(con);
1993                         if (peer != NULL)
1994                                 {
1995                                 BIO_printf(io,"Client certificate\n");
1996                                 X509_print(io,peer);
1997                                 PEM_write_bio_X509(io,peer);
1998                                 }
1999                         else
2000                                 BIO_puts(io,"no client certificate available\n");
2001                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2002                         break;
2003                         }
2004                 else if ((www == 2 || www == 3)
2005                          && (strncmp("GET /",buf,5) == 0))
2006                         {
2007                         BIO *file;
2008                         char *p,*e;
2009                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2010
2011                         /* skip the '/' */
2012                         p= &(buf[5]);
2013
2014                         dot = 1;
2015                         for (e=p; *e != '\0'; e++)
2016                                 {
2017                                 if (e[0] == ' ')
2018                                         break;
2019
2020                                 switch (dot)
2021                                         {
2022                                 case 1:
2023                                         dot = (e[0] == '.') ? 2 : 0;
2024                                         break;
2025                                 case 2:
2026                                         dot = (e[0] == '.') ? 3 : 0;
2027                                         break;
2028                                 case 3:
2029                                         dot = (e[0] == '/') ? -1 : 0;
2030                                         break;
2031                                         }
2032                                 if (dot == 0)
2033                                         dot = (e[0] == '/') ? 1 : 0;
2034                                 }
2035                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2036
2037                         if (*e == '\0')
2038                                 {
2039                                 BIO_puts(io,text);
2040                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2041                                 break;
2042                                 }
2043                         *e='\0';
2044
2045                         if (dot)
2046                                 {
2047                                 BIO_puts(io,text);
2048                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2049                                 break;
2050                                 }
2051
2052                         if (*p == '/')
2053                                 {
2054                                 BIO_puts(io,text);
2055                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2056                                 break;
2057                                 }
2058
2059 #if 0
2060                         /* append if a directory lookup */
2061                         if (e[-1] == '/')
2062                                 strcat(p,"index.html");
2063 #endif
2064
2065                         /* if a directory, do the index thang */
2066                         if (app_isdir(p)>0)
2067                                 {
2068 #if 0 /* must check buffer size */
2069                                 strcat(p,"/index.html");
2070 #else
2071                                 BIO_puts(io,text);
2072                                 BIO_printf(io,"'%s' is a directory\r\n",p);
2073                                 break;
2074 #endif
2075                                 }
2076
2077                         if ((file=BIO_new_file(p,"r")) == NULL)
2078                                 {
2079                                 BIO_puts(io,text);
2080                                 BIO_printf(io,"Error opening '%s'\r\n",p);
2081                                 ERR_print_errors(io);
2082                                 break;
2083                                 }
2084
2085                         if (!s_quiet)
2086                                 BIO_printf(bio_err,"FILE:%s\n",p);
2087
2088                         if (www == 2)
2089                                 {
2090                                 i=strlen(p);
2091                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2092                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2093                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2094                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2095                                 else
2096                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2097                                 }
2098                         /* send the file */
2099                         total_bytes=0;
2100                         for (;;)
2101                                 {
2102                                 i=BIO_read(file,buf,bufsize);
2103                                 if (i <= 0) break;
2104
2105 #ifdef RENEG
2106                                 total_bytes+=i;
2107                                 fprintf(stderr,"%d\n",i);
2108                                 if (total_bytes > 3*1024)
2109                                         {
2110                                         total_bytes=0;
2111                                         fprintf(stderr,"RENEGOTIATE\n");
2112                                         SSL_renegotiate(con);
2113                                         }
2114 #endif
2115
2116                                 for (j=0; j<i; )
2117                                         {
2118 #ifdef RENEG
2119 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2120 #endif
2121                                         k=BIO_write(io,&(buf[j]),i-j);
2122                                         if (k <= 0)
2123                                                 {
2124                                                 if (!BIO_should_retry(io))
2125                                                         goto write_error;
2126                                                 else
2127                                                         {
2128                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2129                                                         }
2130                                                 }
2131                                         else
2132                                                 {
2133                                                 j+=k;
2134                                                 }
2135                                         }
2136                                 }
2137 write_error:
2138                         BIO_free(file);
2139                         break;
2140                         }
2141                 }
2142
2143         for (;;)
2144                 {
2145                 i=(int)BIO_flush(io);
2146                 if (i <= 0)
2147                         {
2148                         if (!BIO_should_retry(io))
2149                                 break;
2150                         }
2151                 else
2152                         break;
2153                 }
2154 end:
2155 #if 1
2156         /* make sure we re-use sessions */
2157         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2158 #else
2159         /* This kills performance */
2160 /*      SSL_shutdown(con); A shutdown gets sent in the
2161  *      BIO_free_all(io) procession */
2162 #endif
2163
2164 err:
2165
2166         if (ret >= 0)
2167                 BIO_printf(bio_s_out,"ACCEPT\n");
2168
2169         if (buf != NULL) OPENSSL_free(buf);
2170         if (io != NULL) BIO_free_all(io);
2171 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2172         return(ret);
2173         }
2174
2175 #ifndef OPENSSL_NO_RSA
2176 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2177         {
2178         BIGNUM *bn = NULL;
2179         static RSA *rsa_tmp=NULL;
2180
2181         if (!rsa_tmp && ((bn = BN_new()) == NULL))
2182                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
2183         if (!rsa_tmp && bn)
2184                 {
2185                 if (!s_quiet)
2186                         {
2187                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
2188                         (void)BIO_flush(bio_err);
2189                         }
2190                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2191                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
2192                         {
2193                         if(rsa_tmp) RSA_free(rsa_tmp);
2194                         rsa_tmp = NULL;
2195                         }
2196                 if (!s_quiet)
2197                         {
2198                         BIO_printf(bio_err,"\n");
2199                         (void)BIO_flush(bio_err);
2200                         }
2201                 BN_free(bn);
2202                 }
2203         return(rsa_tmp);
2204         }
2205 #endif
2206
2207 #define MAX_SESSION_ID_ATTEMPTS 10
2208 static int generate_session_id(const SSL *ssl, unsigned char *id,
2209                                 unsigned int *id_len)
2210         {
2211         unsigned int count = 0;
2212         do      {
2213                 RAND_pseudo_bytes(id, *id_len);
2214                 /* Prefix the session_id with the required prefix. NB: If our
2215                  * prefix is too long, clip it - but there will be worse effects
2216                  * anyway, eg. the server could only possibly create 1 session
2217                  * ID (ie. the prefix!) so all future session negotiations will
2218                  * fail due to conflicts. */
2219                 memcpy(id, session_id_prefix,
2220                         (strlen(session_id_prefix) < *id_len) ?
2221                         strlen(session_id_prefix) : *id_len);
2222                 }
2223         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
2224                 (++count < MAX_SESSION_ID_ATTEMPTS));
2225         if(count >= MAX_SESSION_ID_ATTEMPTS)
2226                 return 0;
2227         return 1;
2228         }