apps/s_server.c

   1 /* apps/s_server.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 113  * ECC cipher suite support in OpenSSL originally developed by
 114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 115  */
 116
 117 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
 118  * deprecated functions for openssl-internal code */
 119 #ifdef OPENSSL_NO_DEPRECATED
 120 #undef OPENSSL_NO_DEPRECATED
 121 #endif
 122
 123 #include <assert.h>
 124 #include <stdio.h>
 125 #include <stdlib.h>
 126 #include <string.h>
 127
 128 #include <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 socketMtu;
 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 - check TLS1 servername\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         BIO_printf(bio_err," -servername host - check TLS1 servername\n");
 375 #endif
 376         }
 377
 378 static int local_argc=0;
 379 static char **local_argv;
 380
 381 #ifdef CHARSET_EBCDIC
 382 static int ebcdic_new(BIO *bi);
 383 static int ebcdic_free(BIO *a);
 384 static int ebcdic_read(BIO *b, char *out, int outl);
 385 static int ebcdic_write(BIO *b, const char *in, int inl);
 386 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 387 static int ebcdic_gets(BIO *bp, char *buf, int size);
 388 static int ebcdic_puts(BIO *bp, const char *str);
 389
 390 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 391 static BIO_METHOD methods_ebcdic=
 392         {
 393         BIO_TYPE_EBCDIC_FILTER,
 394         "EBCDIC/ASCII filter",
 395         ebcdic_write,
 396         ebcdic_read,
 397         ebcdic_puts,
 398         ebcdic_gets,
 399         ebcdic_ctrl,
 400         ebcdic_new,
 401         ebcdic_free,
 402         };
 403
 404 typedef struct
 405 {
 406         size_t  alloced;
 407         char    buff[1];
 408 } EBCDIC_OUTBUFF;
 409
 410 BIO_METHOD *BIO_f_ebcdic_filter()
 411 {
 412         return(&methods_ebcdic);
 413 }
 414
 415 static int ebcdic_new(BIO *bi)
 416 {
 417         EBCDIC_OUTBUFF *wbuf;
 418
 419         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 420         wbuf->alloced = 1024;
 421         wbuf->buff[0] = '\0';
 422
 423         bi->ptr=(char *)wbuf;
 424         bi->init=1;
 425         bi->flags=0;
 426         return(1);
 427 }
 428
 429 static int ebcdic_free(BIO *a)
 430 {
 431         if (a == NULL) return(0);
 432         if (a->ptr != NULL)
 433                 OPENSSL_free(a->ptr);
 434         a->ptr=NULL;
 435         a->init=0;
 436         a->flags=0;
 437         return(1);
 438 }
 439
 440 static int ebcdic_read(BIO *b, char *out, int outl)
 441 {
 442         int ret=0;
 443
 444         if (out == NULL || outl == 0) return(0);
 445         if (b->next_bio == NULL) return(0);
 446
 447         ret=BIO_read(b->next_bio,out,outl);
 448         if (ret > 0)
 449                 ascii2ebcdic(out,out,ret);
 450         return(ret);
 451 }
 452
 453 static int ebcdic_write(BIO *b, const char *in, int inl)
 454 {
 455         EBCDIC_OUTBUFF *wbuf;
 456         int ret=0;
 457         int num;
 458         unsigned char n;
 459
 460         if ((in == NULL) || (inl <= 0)) return(0);
 461         if (b->next_bio == NULL) return(0);
 462
 463         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 464
 465         if (inl > (num = wbuf->alloced))
 466         {
 467                 num = num + num;  /* double the size */
 468                 if (num < inl)
 469                         num = inl;
 470                 OPENSSL_free(wbuf);
 471                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 472
 473                 wbuf->alloced = num;
 474                 wbuf->buff[0] = '\0';
 475
 476                 b->ptr=(char *)wbuf;
 477         }
 478
 479         ebcdic2ascii(wbuf->buff, in, inl);
 480
 481         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 482
 483         return(ret);
 484 }
 485
 486 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 487 {
 488         long ret;
 489
 490         if (b->next_bio == NULL) return(0);
 491         switch (cmd)
 492         {
 493         case BIO_CTRL_DUP:
 494                 ret=0L;
 495                 break;
 496         default:
 497                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 498                 break;
 499         }
 500         return(ret);
 501 }
 502
 503 static int ebcdic_gets(BIO *bp, char *buf, int size)
 504 {
 505         int i, ret=0;
 506         if (bp->next_bio == NULL) return(0);
 507 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 508         for (i=0; i<size-1; ++i)
 509         {
 510                 ret = ebcdic_read(bp,&buf[i],1);
 511                 if (ret <= 0)
 512                         break;
 513                 else if (buf[i] == '\n')
 514                 {
 515                         ++i;
 516                         break;
 517                 }
 518         }
 519         if (i < size)
 520                 buf[i] = '\0';
 521         return (ret < 0 && i == 0) ? ret : i;
 522 }
 523
 524 static int ebcdic_puts(BIO *bp, const char *str)
 525 {
 526         if (bp->next_bio == NULL) return(0);
 527         return ebcdic_write(bp, str, strlen(str));
 528 }
 529 #endif
 530
 531 #ifndef OPENSSL_NO_TLSEXT
 532
 533 /* This is a context that we pass to callbacks */
 534 typedef struct tlsextctx_st {
 535    char * servername;
 536    BIO * biodebug;
 537 } tlsextctx;
 538
 539
 540 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg) {
 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                 SSL_set_tlsext_servername_done(s,2);
 548                 return SSL_ERROR_NONE;
 549         }
 550
 551         if (servername) {
 552                 if (strcmp(servername,p->servername))
 553                         return TLS1_AD_UNRECOGNIZED_NAME;
 554                 if (ctx2)
 555                         SSL_set_SSL_CTX(s,ctx2);
 556                 SSL_set_tlsext_servername_done(s,1);
 557         }
 558         return SSL_ERROR_NONE;
 559 }
 560 #endif
 561
 562 int MAIN(int, char **);
 563
 564 int MAIN(int argc, char *argv[])
 565         {
 566         X509_STORE *store = NULL;
 567         int vflags = 0;
 568         short port=PORT;
 569         char *CApath=NULL,*CAfile=NULL;
 570         unsigned char *context = NULL;
 571         char *dhfile = NULL;
 572 #ifndef OPENSSL_NO_ECDH
 573         char *named_curve = NULL;
 574 #endif
 575         int badop=0,bugs=0;
 576         int ret=1;
 577         int off=0;
 578         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
 579         int state=0;
 580         const SSL_METHOD *meth=NULL;
 581         int socketType=SOCK_STREAM;
 582 #ifndef OPENSSL_NO_ENGINE
 583         ENGINE *e=NULL;
 584 #endif
 585         char *inrand=NULL;
 586         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
 587         char *passarg = NULL, *pass = NULL;
 588         char *dpassarg = NULL, *dpass = NULL;
 589         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
 590         X509 *s_cert = NULL, *s_dcert = NULL;
 591         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
 592 #ifndef OPENSSL_NO_TLSEXT
 593         EVP_PKEY *s_key2 = NULL;
 594         X509 *s_cert2 = NULL;
 595 #endif
 596
 597 #ifndef OPENSSL_NO_TLSEXT
 598         tlsextctx tlsextcbp =
 599         {NULL,NULL
 600         };
 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                         socketType = 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                         socketMtu = 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 (socketType == 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         ctx2=SSL_CTX_new(meth);
1063         if (ctx2 == NULL)
1064                 {
1065                 ERR_print_errors(bio_err);
1066                 goto end;
1067                 }
1068         }
1069
1070         if (ctx2) {
1071                         BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1072         if (session_id_prefix)
1073                 {
1074                 if(strlen(session_id_prefix) >= 32)
1075                         BIO_printf(bio_err,
1076 "warning: id_prefix is too long, only one new session will be possible\n");
1077                 else if(strlen(session_id_prefix) >= 16)
1078                         BIO_printf(bio_err,
1079 "warning: id_prefix is too long if you use SSLv2\n");
1080                 if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1081                         {
1082                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1083                         ERR_print_errors(bio_err);
1084                         goto end;
1085                         }
1086                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1087                 }
1088         SSL_CTX_set_quiet_shutdown(ctx2,1);
1089         if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1090         if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1091         SSL_CTX_set_options(ctx2,off);
1092         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1093          * Setting read ahead solves this problem.
1094          */
1095         if (socketType == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1096
1097         if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1098
1099         SSL_CTX_sess_set_cache_size(ctx2,128);
1100
1101         if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1102                 (!SSL_CTX_set_default_verify_paths(ctx2)))
1103                 {
1104                         ERR_print_errors(bio_err);
1105                 }
1106         store = SSL_CTX_get_cert_store(ctx2);
1107         X509_STORE_set_flags(store, vflags);
1108
1109         }
1110 #endif
1111 #ifndef OPENSSL_NO_DH
1112         if (!no_dhe)
1113                 {
1114                 DH *dh=NULL;
1115
1116                 if (dhfile)
1117                         dh = load_dh_param(dhfile);
1118                 else if (s_cert_file)
1119                         dh = load_dh_param(s_cert_file);
1120
1121                 if (dh != NULL)
1122                         {
1123                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1124                         }
1125                 else
1126                         {
1127                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1128                         dh=get_dh512();
1129                         }
1130                 (void)BIO_flush(bio_s_out);
1131
1132                 SSL_CTX_set_tmp_dh(ctx,dh);
1133 #ifndef OPENSSL_NO_TLSEXT
1134                 if (ctx2) {
1135                         if (!dhfile) {
1136                                 DH *dh2=load_dh_param(s_cert_file2);
1137                                 if (dh2 != NULL)
1138                                 {
1139                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1140                                         (void)BIO_flush(bio_s_out);
1141
1142                                         DH_free(dh);
1143                                         dh = dh2;
1144                                 }
1145                         }
1146                         SSL_CTX_set_tmp_dh(ctx2,dh);
1147                 }
1148 #endif
1149                 DH_free(dh);
1150                 }
1151 #endif
1152
1153 #ifndef OPENSSL_NO_ECDH
1154         if (!no_ecdhe)
1155                 {
1156                 EC_KEY *ecdh=NULL;
1157
1158                 if (named_curve)
1159                         {
1160                         int nid = OBJ_sn2nid(named_curve);
1161
1162                         if (nid == 0)
1163                                 {
1164                                 BIO_printf(bio_err, "unknown curve name (%s)\n",
1165                                         named_curve);
1166                                 goto end;
1167                                 }
1168                         ecdh = EC_KEY_new_by_curve_name(nid);
1169                         if (ecdh == NULL)
1170                                 {
1171                                 BIO_printf(bio_err, "unable to create curve (%s)\n",
1172                                         named_curve);
1173                                 goto end;
1174                                 }
1175                         }
1176
1177                 if (ecdh != NULL)
1178                         {
1179                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1180                         }
1181                 else
1182                         {
1183                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1184                         ecdh = EC_KEY_new_by_curve_name(NID_sect163r2);
1185                         if (ecdh == NULL)
1186                                 {
1187                                 BIO_printf(bio_err, "unable to create curve (sect163r2)\n");
1188                                 goto end;
1189                                 }
1190                         }
1191                 (void)BIO_flush(bio_s_out);
1192
1193                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1194 #ifndef OPENSSL_NO_TLSEXT
1195                 if (ctx2)
1196                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1197 #endif
1198                 EC_KEY_free(ecdh);
1199                 }
1200 #endif
1201
1202         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1203                 goto end;
1204 #ifndef OPENSSL_NO_TLSEXT
1205         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1206                 goto end;
1207 #endif
1208         if (s_dcert != NULL)
1209                 {
1210                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1211                         goto end;
1212                 }
1213
1214 #ifndef OPENSSL_NO_RSA
1215 #if 1
1216         if (!no_tmp_rsa) {
1217                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1218 #ifndef OPENSSL_NO_TLSEXT
1219                 if (ctx2)
1220                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1221 #endif
1222         }
1223 #else
1224         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1225                 {
1226                 RSA *rsa;
1227
1228                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1229                 BIO_flush(bio_s_out);
1230
1231                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1232
1233                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1234                         {
1235                         ERR_print_errors(bio_err);
1236                         goto end;
1237                         }
1238 #ifndef OPENSSL_NO_TLSEXT
1239                         if (ctx2) {
1240                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1241                                 {
1242                                         ERR_print_errors(bio_err);
1243                                         goto end;
1244                                 }
1245                         }
1246 #endif
1247                 RSA_free(rsa);
1248                 BIO_printf(bio_s_out,"\n");
1249                 }
1250 #endif
1251 #endif
1252
1253         if (cipher != NULL) {
1254                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1255                         BIO_printf(bio_err,"error setting cipher list\n");
1256                         ERR_print_errors(bio_err);
1257                         goto end;
1258                 }
1259 #ifndef OPENSSL_NO_TLSEXT
1260                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher)) {
1261                         BIO_printf(bio_err,"error setting cipher list\n");
1262                         ERR_print_errors(bio_err);
1263                         goto end;
1264                 }
1265 #endif
1266         }
1267         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1268         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1269                 sizeof s_server_session_id_context);
1270
1271 #ifndef OPENSSL_NO_TLSEXT
1272         if (ctx2) {
1273                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1274                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1275                         sizeof s_server_session_id_context);
1276
1277         }
1278         tlsextcbp.biodebug = bio_s_out;
1279         SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1280         SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1281         SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1282         SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1283 #endif
1284         if (CAfile != NULL) {
1285             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1286 #ifndef OPENSSL_NO_TLSEXT
1287                 if (ctx2)
1288                          SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1289 #endif
1290         }
1291
1292         BIO_printf(bio_s_out,"ACCEPT\n");
1293         if (www)
1294                 do_server(port,socketType,&accept_socket,www_body, context);
1295         else
1296                 do_server(port,socketType,&accept_socket,sv_body, context);
1297         print_stats(bio_s_out,ctx);
1298         ret=0;
1299 end:
1300         if (ctx != NULL) SSL_CTX_free(ctx);
1301         if (s_cert)
1302                 X509_free(s_cert);
1303         if (s_dcert)
1304                 X509_free(s_dcert);
1305         if (s_key)
1306                 EVP_PKEY_free(s_key);
1307         if (s_dkey)
1308                 EVP_PKEY_free(s_dkey);
1309         if (pass)
1310                 OPENSSL_free(pass);
1311         if (dpass)
1312                 OPENSSL_free(dpass);
1313 #ifndef OPENSSL_NO_TLSEXT
1314         if (ctx2 != NULL) SSL_CTX_free(ctx2);
1315         if (s_cert2)
1316                 X509_free(s_cert2);
1317         if (s_key2)
1318                 EVP_PKEY_free(s_key2);
1319 #endif
1320         if (bio_s_out != NULL)
1321                 {
1322         BIO_free(bio_s_out);
1323                 bio_s_out=NULL;
1324                 }
1325         apps_shutdown();
1326         OPENSSL_EXIT(ret);
1327         }
1328
1329 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1330         {
1331         BIO_printf(bio,"%4ld items in the session cache\n",
1332                 SSL_CTX_sess_number(ssl_ctx));
1333         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1334                 SSL_CTX_sess_connect(ssl_ctx));
1335         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1336                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1337         BIO_printf(bio,"%4ld client connects that finished\n",
1338                 SSL_CTX_sess_connect_good(ssl_ctx));
1339         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1340                 SSL_CTX_sess_accept(ssl_ctx));
1341         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1342                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1343         BIO_printf(bio,"%4ld server accepts that finished\n",
1344                 SSL_CTX_sess_accept_good(ssl_ctx));
1345         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1346         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1347         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1348         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1349         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1350                 SSL_CTX_sess_cache_full(ssl_ctx),
1351                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1352         }
1353
1354 static int sv_body(char *hostname, int s, unsigned char *context)
1355         {
1356         char *buf=NULL;
1357         fd_set readfds;
1358         int ret=1,width;
1359         int k,i;
1360         unsigned long l;
1361         SSL *con=NULL;
1362         BIO *sbio;
1363 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1364         struct timeval tv;
1365 #endif
1366
1367         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1368                 {
1369                 BIO_printf(bio_err,"out of memory\n");
1370                 goto err;
1371                 }
1372 #ifdef FIONBIO
1373         if (s_nbio)
1374                 {
1375                 unsigned long sl=1;
1376
1377                 if (!s_quiet)
1378                         BIO_printf(bio_err,"turning on non blocking io\n");
1379                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1380                         ERR_print_errors(bio_err);
1381                 }
1382 #endif
1383
1384         if (con == NULL) {
1385                 con=SSL_new(ctx);
1386 #ifndef OPENSSL_NO_KRB5
1387                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1388                         {
1389                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
1390                                                                 KRB5SVC);
1391                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
1392                                                                 KRB5KEYTAB);
1393                         }
1394 #endif  /* OPENSSL_NO_KRB5 */
1395                 if(context)
1396                       SSL_set_session_id_context(con, context,
1397                                                  strlen((char *)context));
1398         }
1399         SSL_clear(con);
1400
1401         if (SSL_version(con) == DTLS1_VERSION)
1402                 {
1403                 struct timeval timeout;
1404
1405                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1406
1407                 if ( enable_timeouts)
1408                         {
1409                         timeout.tv_sec = 0;
1410                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1411                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1412
1413                         timeout.tv_sec = 0;
1414                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1415                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1416                         }
1417
1418
1419                 if ( socketMtu > 0)
1420                         {
1421                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1422                         SSL_set_mtu(con, socketMtu);
1423                         }
1424                 else
1425                         /* want to do MTU discovery */
1426                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1427
1428         /* turn on cookie exchange */
1429         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
1430                 }
1431         else
1432                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1433
1434         if (s_nbio_test)
1435                 {
1436                 BIO *test;
1437
1438                 test=BIO_new(BIO_f_nbio_test());
1439                 sbio=BIO_push(test,sbio);
1440                 }
1441         SSL_set_bio(con,sbio,sbio);
1442         SSL_set_accept_state(con);
1443         /* SSL_set_fd(con,s); */
1444
1445         if (s_debug)
1446                 {
1447                 con->debug=1;
1448                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1449                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1450                 }
1451         if (s_msg)
1452                 {
1453                 SSL_set_msg_callback(con, msg_cb);
1454                 SSL_set_msg_callback_arg(con, bio_s_out);
1455                 }
1456
1457         width=s+1;
1458         for (;;)
1459                 {
1460                 int read_from_terminal;
1461                 int read_from_sslcon;
1462
1463                 read_from_terminal = 0;
1464                 read_from_sslcon = SSL_pending(con);
1465
1466                 if (!read_from_sslcon)
1467                         {
1468                         FD_ZERO(&readfds);
1469 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1470                         FD_SET(fileno(stdin),&readfds);
1471 #endif
1472                         FD_SET(s,&readfds);
1473                         /* Note: under VMS with SOCKETSHR the second parameter is
1474                          * currently of type (int *) whereas under other systems
1475                          * it is (void *) if you don't have a cast it will choke
1476                          * the compiler: if you do have a cast then you can either
1477                          * go for (int *) or (void *).
1478                          */
1479 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1480                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
1481                          * on sockets. As a workaround we timeout the select every
1482                          * second and check for any keypress. In a proper Windows
1483                          * application we wouldn't do this because it is inefficient.
1484                          */
1485                         tv.tv_sec = 1;
1486                         tv.tv_usec = 0;
1487                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
1488                         if((i < 0) || (!i && !_kbhit() ) )continue;
1489                         if(_kbhit())
1490                                 read_from_terminal = 1;
1491 #else
1492                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
1493                         if (i <= 0) continue;
1494                         if (FD_ISSET(fileno(stdin),&readfds))
1495                                 read_from_terminal = 1;
1496 #endif
1497                         if (FD_ISSET(s,&readfds))
1498                                 read_from_sslcon = 1;
1499                         }
1500                 if (read_from_terminal)
1501                         {
1502                         if (s_crlf)
1503                                 {
1504                                 int j, lf_num;
1505
1506                                 i=raw_read_stdin(buf, bufsize/2);
1507                                 lf_num = 0;
1508                                 /* both loops are skipped when i <= 0 */
1509                                 for (j = 0; j < i; j++)
1510                                         if (buf[j] == '\n')
1511                                                 lf_num++;
1512                                 for (j = i-1; j >= 0; j--)
1513                                         {
1514                                         buf[j+lf_num] = buf[j];
1515                                         if (buf[j] == '\n')
1516                                                 {
1517                                                 lf_num--;
1518                                                 i++;
1519                                                 buf[j+lf_num] = '\r';
1520                                                 }
1521                                         }
1522                                 assert(lf_num == 0);
1523                                 }
1524                         else
1525                                 i=raw_read_stdin(buf,bufsize);
1526                         if (!s_quiet)
1527                                 {
1528                                 if ((i <= 0) || (buf[0] == 'Q'))
1529                                         {
1530                                         BIO_printf(bio_s_out,"DONE\n");
1531                                         SHUTDOWN(s);
1532                                         close_accept_socket();
1533                                         ret= -11;
1534                                         goto err;
1535                                         }
1536                                 if ((i <= 0) || (buf[0] == 'q'))
1537                                         {
1538                                         BIO_printf(bio_s_out,"DONE\n");
1539                                         if (SSL_version(con) != DTLS1_VERSION)
1540                         SHUTDOWN(s);
1541         /*                              close_accept_socket();
1542                                         ret= -11;*/
1543                                         goto err;
1544                                         }
1545                                 if ((buf[0] == 'r') &&
1546                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1547                                         {
1548                                         SSL_renegotiate(con);
1549                                         i=SSL_do_handshake(con);
1550                                         printf("SSL_do_handshake -> %d\n",i);
1551                                         i=0; /*13; */
1552                                         continue;
1553                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1554                                         }
1555                                 if ((buf[0] == 'R') &&
1556                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1557                                         {
1558                                         SSL_set_verify(con,
1559                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1560                                         SSL_renegotiate(con);
1561                                         i=SSL_do_handshake(con);
1562                                         printf("SSL_do_handshake -> %d\n",i);
1563                                         i=0; /* 13; */
1564                                         continue;
1565                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1566                                         }
1567                                 if (buf[0] == 'P')
1568                                         {
1569                                         static const char *str="Lets print some clear text\n";
1570                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1571                                         }
1572                                 if (buf[0] == 'S')
1573                                         {
1574                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1575                                         }
1576                                 }
1577 #ifdef CHARSET_EBCDIC
1578                         ebcdic2ascii(buf,buf,i);
1579 #endif
1580                         l=k=0;
1581                         for (;;)
1582                                 {
1583                                 /* should do a select for the write */
1584 #ifdef RENEG
1585 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1586 #endif
1587                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1588                                 switch (SSL_get_error(con,k))
1589                                         {
1590                                 case SSL_ERROR_NONE:
1591                                         break;
1592                                 case SSL_ERROR_WANT_WRITE:
1593                                 case SSL_ERROR_WANT_READ:
1594                                 case SSL_ERROR_WANT_X509_LOOKUP:
1595                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1596                                         break;
1597                                 case SSL_ERROR_SYSCALL:
1598                                 case SSL_ERROR_SSL:
1599                                         BIO_printf(bio_s_out,"ERROR\n");
1600                                         ERR_print_errors(bio_err);
1601                                         ret=1;
1602                                         goto err;
1603                                         /* break; */
1604                                 case SSL_ERROR_ZERO_RETURN:
1605                                         BIO_printf(bio_s_out,"DONE\n");
1606                                         ret=1;
1607                                         goto err;
1608                                         }
1609                                 l+=k;
1610                                 i-=k;
1611                                 if (i <= 0) break;
1612                                 }
1613                         }
1614                 if (read_from_sslcon)
1615                         {
1616                         if (!SSL_is_init_finished(con))
1617                                 {
1618                                 i=init_ssl_connection(con);
1619
1620                                 if (i < 0)
1621                                         {
1622                                         ret=0;
1623                                         goto err;
1624                                         }
1625                                 else if (i == 0)
1626                                         {
1627                                         ret=1;
1628                                         goto err;
1629                                         }
1630                                 }
1631                         else
1632                                 {
1633 again:
1634                                 i=SSL_read(con,(char *)buf,bufsize);
1635                                 switch (SSL_get_error(con,i))
1636                                         {
1637                                 case SSL_ERROR_NONE:
1638 #ifdef CHARSET_EBCDIC
1639                                         ascii2ebcdic(buf,buf,i);
1640 #endif
1641                                         raw_write_stdout(buf,
1642                                                 (unsigned int)i);
1643                                         if (SSL_pending(con)) goto again;
1644                                         break;
1645                                 case SSL_ERROR_WANT_WRITE:
1646                                 case SSL_ERROR_WANT_READ:
1647                                 case SSL_ERROR_WANT_X509_LOOKUP:
1648                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1649                                         break;
1650                                 case SSL_ERROR_SYSCALL:
1651                                 case SSL_ERROR_SSL:
1652                                         BIO_printf(bio_s_out,"ERROR\n");
1653                                         ERR_print_errors(bio_err);
1654                                         ret=1;
1655                                         goto err;
1656                                 case SSL_ERROR_ZERO_RETURN:
1657                                         BIO_printf(bio_s_out,"DONE\n");
1658                                         ret=1;
1659                                         goto err;
1660                                         }
1661                                 }
1662                         }
1663                 }
1664 err:
1665         BIO_printf(bio_s_out,"shutting down SSL\n");
1666 #if 1
1667         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1668 #else
1669         SSL_shutdown(con);
1670 #endif
1671         if (con != NULL) SSL_free(con);
1672         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1673         if (buf != NULL)
1674                 {
1675                 OPENSSL_cleanse(buf,bufsize);
1676                 OPENSSL_free(buf);
1677                 }
1678         if (ret >= 0)
1679                 BIO_printf(bio_s_out,"ACCEPT\n");
1680         return(ret);
1681         }
1682
1683 static void close_accept_socket(void)
1684         {
1685         BIO_printf(bio_err,"shutdown accept socket\n");
1686         if (accept_socket >= 0)
1687                 {
1688                 SHUTDOWN2(accept_socket);
1689                 }
1690         }
1691
1692 static int init_ssl_connection(SSL *con)
1693         {
1694         int i;
1695         const char *str;
1696         X509 *peer;
1697         long verify_error;
1698         MS_STATIC char buf[BUFSIZ];
1699
1700         if ((i=SSL_accept(con)) <= 0)
1701                 {
1702                 if (BIO_sock_should_retry(i))
1703                         {
1704                         BIO_printf(bio_s_out,"DELAY\n");
1705                         return(1);
1706                         }
1707
1708                 BIO_printf(bio_err,"ERROR\n");
1709                 verify_error=SSL_get_verify_result(con);
1710                 if (verify_error != X509_V_OK)
1711                         {
1712                         BIO_printf(bio_err,"verify error:%s\n",
1713                                 X509_verify_cert_error_string(verify_error));
1714                         }
1715                 else
1716                         ERR_print_errors(bio_err);
1717                 return(0);
1718                 }
1719
1720         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1721
1722         peer=SSL_get_peer_certificate(con);
1723         if (peer != NULL)
1724                 {
1725                 BIO_printf(bio_s_out,"Client certificate\n");
1726                 PEM_write_bio_X509(bio_s_out,peer);
1727                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
1728                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1729                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
1730                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1731                 X509_free(peer);
1732                 }
1733
1734         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
1735                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1736         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1737         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1738         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1739         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1740                 TLS1_FLAGS_TLS_PADDING_BUG)
1741                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1742 #ifndef OPENSSL_NO_KRB5
1743         if (con->kssl_ctx->client_princ != NULL)
1744                 {
1745                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
1746                         con->kssl_ctx->client_princ);
1747                 }
1748 #endif /* OPENSSL_NO_KRB5 */
1749         return(1);
1750         }
1751
1752 #ifndef OPENSSL_NO_DH
1753 static DH *load_dh_param(const char *dhfile)
1754         {
1755         DH *ret=NULL;
1756         BIO *bio;
1757
1758         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1759                 goto err;
1760         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1761 err:
1762         if (bio != NULL) BIO_free(bio);
1763         return(ret);
1764         }
1765 #endif
1766
1767 #if 0
1768 static int load_CA(SSL_CTX *ctx, char *file)
1769         {
1770         FILE *in;
1771         X509 *x=NULL;
1772
1773         if ((in=fopen(file,"r")) == NULL)
1774                 return(0);
1775
1776         for (;;)
1777                 {
1778                 if (PEM_read_X509(in,&x,NULL) == NULL)
1779                         break;
1780                 SSL_CTX_add_client_CA(ctx,x);
1781                 }
1782         if (x != NULL) X509_free(x);
1783         fclose(in);
1784         return(1);
1785         }
1786 #endif
1787
1788 static int www_body(char *hostname, int s, unsigned char *context)
1789         {
1790         char *buf=NULL;
1791         int ret=1;
1792         int i,j,k,blank,dot;
1793         SSL *con;
1794         SSL_CIPHER *c;
1795         BIO *io,*ssl_bio,*sbio;
1796         long total_bytes;
1797
1798         buf=OPENSSL_malloc(bufsize);
1799         if (buf == NULL) return(0);
1800         io=BIO_new(BIO_f_buffer());
1801         ssl_bio=BIO_new(BIO_f_ssl());
1802         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1803
1804 #ifdef FIONBIO
1805         if (s_nbio)
1806                 {
1807                 unsigned long sl=1;
1808
1809                 if (!s_quiet)
1810                         BIO_printf(bio_err,"turning on non blocking io\n");
1811                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1812                         ERR_print_errors(bio_err);
1813                 }
1814 #endif
1815
1816         /* lets make the output buffer a reasonable size */
1817         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1818
1819         if ((con=SSL_new(ctx)) == NULL) goto err;
1820 #ifndef OPENSSL_NO_KRB5
1821         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1822                 {
1823                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
1824                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
1825                 }
1826 #endif  /* OPENSSL_NO_KRB5 */
1827         if(context) SSL_set_session_id_context(con, context,
1828                                                strlen((char *)context));
1829
1830         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1831         if (s_nbio_test)
1832                 {
1833                 BIO *test;
1834
1835                 test=BIO_new(BIO_f_nbio_test());
1836                 sbio=BIO_push(test,sbio);
1837                 }
1838         SSL_set_bio(con,sbio,sbio);
1839         SSL_set_accept_state(con);
1840
1841         /* SSL_set_fd(con,s); */
1842         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1843         BIO_push(io,ssl_bio);
1844 #ifdef CHARSET_EBCDIC
1845         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1846 #endif
1847
1848         if (s_debug)
1849                 {
1850                 con->debug=1;
1851                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1852                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1853                 }
1854         if (s_msg)
1855                 {
1856                 SSL_set_msg_callback(con, msg_cb);
1857                 SSL_set_msg_callback_arg(con, bio_s_out);
1858                 }
1859
1860         blank=0;
1861         for (;;)
1862                 {
1863                 if (hack)
1864                         {
1865                         i=SSL_accept(con);
1866
1867                         switch (SSL_get_error(con,i))
1868                                 {
1869                         case SSL_ERROR_NONE:
1870                                 break;
1871                         case SSL_ERROR_WANT_WRITE:
1872                         case SSL_ERROR_WANT_READ:
1873                         case SSL_ERROR_WANT_X509_LOOKUP:
1874                                 continue;
1875                         case SSL_ERROR_SYSCALL:
1876                         case SSL_ERROR_SSL:
1877                         case SSL_ERROR_ZERO_RETURN:
1878                                 ret=1;
1879                                 goto err;
1880                                 /* break; */
1881                                 }
1882
1883                         SSL_renegotiate(con);
1884                         SSL_write(con,NULL,0);
1885                         }
1886
1887                 i=BIO_gets(io,buf,bufsize-1);
1888                 if (i < 0) /* error */
1889                         {
1890                         if (!BIO_should_retry(io))
1891                                 {
1892                                 if (!s_quiet)
1893                                         ERR_print_errors(bio_err);
1894                                 goto err;
1895                                 }
1896                         else
1897                                 {
1898                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1899 #if defined(OPENSSL_SYS_NETWARE)
1900             delay(1000);
1901 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
1902                                 sleep(1);
1903 #endif
1904                                 continue;
1905                                 }
1906                         }
1907                 else if (i == 0) /* end of input */
1908                         {
1909                         ret=1;
1910                         goto end;
1911                         }
1912
1913                 /* else we have data */
1914                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1915                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1916                         {
1917                         char *p;
1918                         X509 *peer;
1919                         STACK_OF(SSL_CIPHER) *sk;
1920                         static const char *space="                          ";
1921
1922                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1923                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1924                         BIO_puts(io,"<pre>\n");
1925 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1926                         BIO_puts(io,"\n");
1927                         for (i=0; i<local_argc; i++)
1928                                 {
1929                                 BIO_puts(io,local_argv[i]);
1930                                 BIO_write(io," ",1);
1931                                 }
1932                         BIO_puts(io,"\n");
1933
1934                         /* The following is evil and should not really
1935                          * be done */
1936                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1937                         sk=SSL_get_ciphers(con);
1938                         j=sk_SSL_CIPHER_num(sk);
1939                         for (i=0; i<j; i++)
1940                                 {
1941                                 c=sk_SSL_CIPHER_value(sk,i);
1942                                 BIO_printf(io,"%-11s:%-25s",
1943                                         SSL_CIPHER_get_version(c),
1944                                         SSL_CIPHER_get_name(c));
1945                                 if ((((i+1)%2) == 0) && (i+1 != j))
1946                                         BIO_puts(io,"\n");
1947                                 }
1948                         BIO_puts(io,"\n");
1949                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1950                         if (p != NULL)
1951                                 {
1952                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1953                                 j=i=0;
1954                                 while (*p)
1955                                         {
1956                                         if (*p == ':')
1957                                                 {
1958                                                 BIO_write(io,space,26-j);
1959                                                 i++;
1960                                                 j=0;
1961                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1962                                                 }
1963                                         else
1964                                                 {
1965                                                 BIO_write(io,p,1);
1966                                                 j++;
1967                                                 }
1968                                         p++;
1969                                         }
1970                                 BIO_puts(io,"\n");
1971                                 }
1972                         BIO_printf(io,((con->hit)
1973                                 ?"---\nReused, "
1974                                 :"---\nNew, "));
1975                         c=SSL_get_current_cipher(con);
1976                         BIO_printf(io,"%s, Cipher is %s\n",
1977                                 SSL_CIPHER_get_version(c),
1978                                 SSL_CIPHER_get_name(c));
1979                         SSL_SESSION_print(io,SSL_get_session(con));
1980                         BIO_printf(io,"---\n");
1981                         print_stats(io,SSL_get_SSL_CTX(con));
1982                         BIO_printf(io,"---\n");
1983                         peer=SSL_get_peer_certificate(con);
1984                         if (peer != NULL)
1985                                 {
1986                                 BIO_printf(io,"Client certificate\n");
1987                                 X509_print(io,peer);
1988                                 PEM_write_bio_X509(io,peer);
1989                                 }
1990                         else
1991                                 BIO_puts(io,"no client certificate available\n");
1992                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1993                         break;
1994                         }
1995                 else if ((www == 2 || www == 3)
1996                          && (strncmp("GET /",buf,5) == 0))
1997                         {
1998                         BIO *file;
1999                         char *p,*e;
2000                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2001
2002                         /* skip the '/' */
2003                         p= &(buf[5]);
2004
2005                         dot = 1;
2006                         for (e=p; *e != '\0'; e++)
2007                                 {
2008                                 if (e[0] == ' ')
2009                                         break;
2010
2011                                 switch (dot)
2012                                         {
2013                                 case 1:
2014                                         dot = (e[0] == '.') ? 2 : 0;
2015                                         break;
2016                                 case 2:
2017                                         dot = (e[0] == '.') ? 3 : 0;
2018                                         break;
2019                                 case 3:
2020                                         dot = (e[0] == '/') ? -1 : 0;
2021                                         break;
2022                                         }
2023                                 if (dot == 0)
2024                                         dot = (e[0] == '/') ? 1 : 0;
2025                                 }
2026                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2027
2028                         if (*e == '\0')
2029                                 {
2030                                 BIO_puts(io,text);
2031                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2032                                 break;
2033                                 }
2034                         *e='\0';
2035
2036                         if (dot)
2037                                 {
2038                                 BIO_puts(io,text);
2039                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2040                                 break;
2041                                 }
2042
2043                         if (*p == '/')
2044                                 {
2045                                 BIO_puts(io,text);
2046                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2047                                 break;
2048                                 }
2049
2050 #if 0
2051                         /* append if a directory lookup */
2052                         if (e[-1] == '/')
2053                                 strcat(p,"index.html");
2054 #endif
2055
2056                         /* if a directory, do the index thang */
2057                         if (app_isdir(p)>0)
2058                                 {
2059 #if 0 /* must check buffer size */
2060                                 strcat(p,"/index.html");
2061 #else
2062                                 BIO_puts(io,text);
2063                                 BIO_printf(io,"'%s' is a directory\r\n",p);
2064                                 break;
2065 #endif
2066                                 }
2067
2068                         if ((file=BIO_new_file(p,"r")) == NULL)
2069                                 {
2070                                 BIO_puts(io,text);
2071                                 BIO_printf(io,"Error opening '%s'\r\n",p);
2072                                 ERR_print_errors(io);
2073                                 break;
2074                                 }
2075
2076                         if (!s_quiet)
2077                                 BIO_printf(bio_err,"FILE:%s\n",p);
2078
2079                         if (www == 2)
2080                                 {
2081                                 i=strlen(p);
2082                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2083                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2084                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2085                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2086                                 else
2087                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2088                                 }
2089                         /* send the file */
2090                         total_bytes=0;
2091                         for (;;)
2092                                 {
2093                                 i=BIO_read(file,buf,bufsize);
2094                                 if (i <= 0) break;
2095
2096 #ifdef RENEG
2097                                 total_bytes+=i;
2098                                 fprintf(stderr,"%d\n",i);
2099                                 if (total_bytes > 3*1024)
2100                                         {
2101                                         total_bytes=0;
2102                                         fprintf(stderr,"RENEGOTIATE\n");
2103                                         SSL_renegotiate(con);
2104                                         }
2105 #endif
2106
2107                                 for (j=0; j<i; )
2108                                         {
2109 #ifdef RENEG
2110 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2111 #endif
2112                                         k=BIO_write(io,&(buf[j]),i-j);
2113                                         if (k <= 0)
2114                                                 {
2115                                                 if (!BIO_should_retry(io))
2116                                                         goto write_error;
2117                                                 else
2118                                                         {
2119                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2120                                                         }
2121                                                 }
2122                                         else
2123                                                 {
2124                                                 j+=k;
2125                                                 }
2126                                         }
2127                                 }
2128 write_error:
2129                         BIO_free(file);
2130                         break;
2131                         }
2132                 }
2133
2134         for (;;)
2135                 {
2136                 i=(int)BIO_flush(io);
2137                 if (i <= 0)
2138                         {
2139                         if (!BIO_should_retry(io))
2140                                 break;
2141                         }
2142                 else
2143                         break;
2144                 }
2145 end:
2146 #if 1
2147         /* make sure we re-use sessions */
2148         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2149 #else
2150         /* This kills performance */
2151 /*      SSL_shutdown(con); A shutdown gets sent in the
2152  *      BIO_free_all(io) procession */
2153 #endif
2154
2155 err:
2156
2157         if (ret >= 0)
2158                 BIO_printf(bio_s_out,"ACCEPT\n");
2159
2160         if (buf != NULL) OPENSSL_free(buf);
2161         if (io != NULL) BIO_free_all(io);
2162 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2163         return(ret);
2164         }
2165
2166 #ifndef OPENSSL_NO_RSA
2167 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2168         {
2169         BIGNUM *bn = NULL;
2170         static RSA *rsa_tmp=NULL;
2171
2172         if (!rsa_tmp && ((bn = BN_new()) == NULL))
2173                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
2174         if (!rsa_tmp && bn)
2175                 {
2176                 if (!s_quiet)
2177                         {
2178                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
2179                         (void)BIO_flush(bio_err);
2180                         }
2181                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2182                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
2183                         {
2184                         if(rsa_tmp) RSA_free(rsa_tmp);
2185                         rsa_tmp = NULL;
2186                         }
2187                 if (!s_quiet)
2188                         {
2189                         BIO_printf(bio_err,"\n");
2190                         (void)BIO_flush(bio_err);
2191                         }
2192                 BN_free(bn);
2193                 }
2194         return(rsa_tmp);
2195         }
2196 #endif
2197
2198 #define MAX_SESSION_ID_ATTEMPTS 10
2199 static int generate_session_id(const SSL *ssl, unsigned char *id,
2200                                 unsigned int *id_len)
2201         {
2202         unsigned int count = 0;
2203         do      {
2204                 RAND_pseudo_bytes(id, *id_len);
2205                 /* Prefix the session_id with the required prefix. NB: If our
2206                  * prefix is too long, clip it - but there will be worse effects
2207                  * anyway, eg. the server could only possibly create 1 session
2208                  * ID (ie. the prefix!) so all future session negotiations will
2209                  * fail due to conflicts. */
2210                 memcpy(id, session_id_prefix,
2211                         (strlen(session_id_prefix) < *id_len) ?
2212                         strlen(session_id_prefix) : *id_len);
2213                 }
2214         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
2215                 (++count < MAX_SESSION_ID_ATTEMPTS));
2216         if(count >= MAX_SESSION_ID_ATTEMPTS)
2217                 return 0;
2218         return 1;
2219         }