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 #include <assert.h>
 118 #include <stdio.h>
 119 #include <stdlib.h>
 120 #include <string.h>
 121 #include <sys/types.h>
 122 #include <sys/stat.h>
 123 #include <openssl/e_os2.h>
 124 #ifdef OPENSSL_NO_STDIO
 125 #define APPS_WIN16
 126 #endif
 127
 128 /* With IPv6, it looks like Digital has mixed up the proper order of
 129    recursive header file inclusion, resulting in the compiler complaining
 130    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 131    is needed to have fileno() declared correctly...  So let's define u_int */
 132 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 133 #define __U_INT
 134 typedef unsigned int u_int;
 135 #endif
 136
 137 #include <openssl/lhash.h>
 138 #include <openssl/bn.h>
 139 #define USE_SOCKETS
 140 #include "apps.h"
 141 #include <openssl/err.h>
 142 #include <openssl/pem.h>
 143 #include <openssl/x509.h>
 144 #include <openssl/ssl.h>
 145 #include <openssl/rand.h>
 146 #include "s_apps.h"
 147
 148 #ifdef OPENSSL_SYS_WINDOWS
 149 #include <conio.h>
 150 #endif
 151
 152 #ifdef OPENSSL_SYS_WINCE
 153 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 154 #ifdef fileno
 155 #undef fileno
 156 #endif
 157 #define fileno(a) (int)_fileno(a)
 158 #endif
 159
 160 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 161 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 162 #undef FIONBIO
 163 #endif
 164
 165 #ifndef OPENSSL_NO_RSA
 166 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 167 #endif
 168 static int sv_body(char *hostname, int s, unsigned char *context);
 169 static int www_body(char *hostname, int s, unsigned char *context);
 170 static void close_accept_socket(void );
 171 static void sv_usage(void);
 172 static int init_ssl_connection(SSL *s);
 173 static void print_stats(BIO *bp,SSL_CTX *ctx);
 174 static int generate_session_id(const SSL *ssl, unsigned char *id,
 175                                 unsigned int *id_len);
 176 #ifndef OPENSSL_NO_DH
 177 static DH *load_dh_param(char *dhfile);
 178 static DH *get_dh512(void);
 179 #endif
 180
 181 #ifdef MONOLITH
 182 static void s_server_init(void);
 183 #endif
 184
 185 #ifndef S_ISDIR
 186 # if defined(_S_IFMT) && defined(_S_IFDIR)
 187 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 188 # else
 189 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 190 # endif
 191 #endif
 192
 193 #ifndef OPENSSL_NO_DH
 194 static unsigned char dh512_p[]={
 195         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 196         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 197         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 198         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 199         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 200         0x47,0x74,0xE8,0x33,
 201         };
 202 static unsigned char dh512_g[]={
 203         0x02,
 204         };
 205
 206 static DH *get_dh512(void)
 207         {
 208         DH *dh=NULL;
 209
 210         if ((dh=DH_new()) == NULL) return(NULL);
 211         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 212         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 213         if ((dh->p == NULL) || (dh->g == NULL))
 214                 return(NULL);
 215         return(dh);
 216         }
 217 #endif
 218
 219
 220 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 221
 222 #undef BUFSIZZ
 223 #define BUFSIZZ 16*1024
 224 static int bufsize=BUFSIZZ;
 225 static int accept_socket= -1;
 226
 227 #define TEST_CERT       "server.pem"
 228 #undef PROG
 229 #define PROG            s_server_main
 230
 231 extern int verify_depth;
 232
 233 static char *cipher=NULL;
 234 static int s_server_verify=SSL_VERIFY_NONE;
 235 static int s_server_session_id_context = 1; /* anything will do */
 236 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 237 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 238 #ifdef FIONBIO
 239 static int s_nbio=0;
 240 #endif
 241 static int s_nbio_test=0;
 242 int s_crlf=0;
 243 static SSL_CTX *ctx=NULL;
 244 static int www=0;
 245
 246 static BIO *bio_s_out=NULL;
 247 static int s_debug=0;
 248 static int s_msg=0;
 249 static int s_quiet=0;
 250
 251 static int hack=0;
 252 static char *engine_id=NULL;
 253 static const char *session_id_prefix=NULL;
 254
 255 #ifdef MONOLITH
 256 static void s_server_init(void)
 257         {
 258         accept_socket=-1;
 259         cipher=NULL;
 260         s_server_verify=SSL_VERIFY_NONE;
 261         s_dcert_file=NULL;
 262         s_dkey_file=NULL;
 263         s_cert_file=TEST_CERT;
 264         s_key_file=NULL;
 265 #ifdef FIONBIO
 266         s_nbio=0;
 267 #endif
 268         s_nbio_test=0;
 269         ctx=NULL;
 270         www=0;
 271
 272         bio_s_out=NULL;
 273         s_debug=0;
 274         s_msg=0;
 275         s_quiet=0;
 276         hack=0;
 277         engine_id=NULL;
 278         }
 279 #endif
 280
 281 static void sv_usage(void)
 282         {
 283         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 284         BIO_printf(bio_err,"\n");
 285         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 286         BIO_printf(bio_err," -context arg  - set session ID context\n");
 287         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 288         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 289         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 290         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 291         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
 292         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 293         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 294         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 295         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 296         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 297 #ifndef OPENSSL_NO_ECDH
 298         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 299                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 300                            "                 (default is sect163r2).\n");
 301 #endif
 302 #ifdef FIONBIO
 303         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 304 #endif
 305         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 306         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 307         BIO_printf(bio_err," -debug        - Print more output\n");
 308         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 309         BIO_printf(bio_err," -state        - Print the SSL states\n");
 310         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 311         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 312         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 313         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 314         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 315         BIO_printf(bio_err," -quiet        - No server output\n");
 316         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 317         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 318         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 319         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 320         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 321         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 322         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 323 #ifndef OPENSSL_NO_DH
 324         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 325 #endif
 326 #ifndef OPENSSL_NO_ECDH
 327         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 328 #endif
 329         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 330         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 331         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 332         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 333         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 334         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 335         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 336         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 337         }
 338
 339 static int local_argc=0;
 340 static char **local_argv;
 341
 342 #ifdef CHARSET_EBCDIC
 343 static int ebcdic_new(BIO *bi);
 344 static int ebcdic_free(BIO *a);
 345 static int ebcdic_read(BIO *b, char *out, int outl);
 346 static int ebcdic_write(BIO *b, const char *in, int inl);
 347 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 348 static int ebcdic_gets(BIO *bp, char *buf, int size);
 349 static int ebcdic_puts(BIO *bp, const char *str);
 350
 351 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 352 static BIO_METHOD methods_ebcdic=
 353         {
 354         BIO_TYPE_EBCDIC_FILTER,
 355         "EBCDIC/ASCII filter",
 356         ebcdic_write,
 357         ebcdic_read,
 358         ebcdic_puts,
 359         ebcdic_gets,
 360         ebcdic_ctrl,
 361         ebcdic_new,
 362         ebcdic_free,
 363         };
 364
 365 typedef struct
 366 {
 367         size_t  alloced;
 368         char    buff[1];
 369 } EBCDIC_OUTBUFF;
 370
 371 BIO_METHOD *BIO_f_ebcdic_filter()
 372 {
 373         return(&methods_ebcdic);
 374 }
 375
 376 static int ebcdic_new(BIO *bi)
 377 {
 378         EBCDIC_OUTBUFF *wbuf;
 379
 380         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 381         wbuf->alloced = 1024;
 382         wbuf->buff[0] = '\0';
 383
 384         bi->ptr=(char *)wbuf;
 385         bi->init=1;
 386         bi->flags=0;
 387         return(1);
 388 }
 389
 390 static int ebcdic_free(BIO *a)
 391 {
 392         if (a == NULL) return(0);
 393         if (a->ptr != NULL)
 394                 OPENSSL_free(a->ptr);
 395         a->ptr=NULL;
 396         a->init=0;
 397         a->flags=0;
 398         return(1);
 399 }
 400
 401 static int ebcdic_read(BIO *b, char *out, int outl)
 402 {
 403         int ret=0;
 404
 405         if (out == NULL || outl == 0) return(0);
 406         if (b->next_bio == NULL) return(0);
 407
 408         ret=BIO_read(b->next_bio,out,outl);
 409         if (ret > 0)
 410                 ascii2ebcdic(out,out,ret);
 411         return(ret);
 412 }
 413
 414 static int ebcdic_write(BIO *b, const char *in, int inl)
 415 {
 416         EBCDIC_OUTBUFF *wbuf;
 417         int ret=0;
 418         int num;
 419         unsigned char n;
 420
 421         if ((in == NULL) || (inl <= 0)) return(0);
 422         if (b->next_bio == NULL) return(0);
 423
 424         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 425
 426         if (inl > (num = wbuf->alloced))
 427         {
 428                 num = num + num;  /* double the size */
 429                 if (num < inl)
 430                         num = inl;
 431                 OPENSSL_free(wbuf);
 432                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 433
 434                 wbuf->alloced = num;
 435                 wbuf->buff[0] = '\0';
 436
 437                 b->ptr=(char *)wbuf;
 438         }
 439
 440         ebcdic2ascii(wbuf->buff, in, inl);
 441
 442         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 443
 444         return(ret);
 445 }
 446
 447 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 448 {
 449         long ret;
 450
 451         if (b->next_bio == NULL) return(0);
 452         switch (cmd)
 453         {
 454         case BIO_CTRL_DUP:
 455                 ret=0L;
 456                 break;
 457         default:
 458                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 459                 break;
 460         }
 461         return(ret);
 462 }
 463
 464 static int ebcdic_gets(BIO *bp, char *buf, int size)
 465 {
 466         int i, ret=0;
 467         if (bp->next_bio == NULL) return(0);
 468 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 469         for (i=0; i<size-1; ++i)
 470         {
 471                 ret = ebcdic_read(bp,&buf[i],1);
 472                 if (ret <= 0)
 473                         break;
 474                 else if (buf[i] == '\n')
 475                 {
 476                         ++i;
 477                         break;
 478                 }
 479         }
 480         if (i < size)
 481                 buf[i] = '\0';
 482         return (ret < 0 && i == 0) ? ret : i;
 483 }
 484
 485 static int ebcdic_puts(BIO *bp, const char *str)
 486 {
 487         if (bp->next_bio == NULL) return(0);
 488         return ebcdic_write(bp, str, strlen(str));
 489 }
 490 #endif
 491
 492 int MAIN(int, char **);
 493
 494 int MAIN(int argc, char *argv[])
 495         {
 496         X509_STORE *store = NULL;
 497         int vflags = 0;
 498         short port=PORT;
 499         char *CApath=NULL,*CAfile=NULL;
 500         char *context = NULL;
 501         char *dhfile = NULL;
 502         char *named_curve = NULL;
 503         int badop=0,bugs=0;
 504         int ret=1;
 505         int off=0;
 506         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
 507         int state=0;
 508         SSL_METHOD *meth=NULL;
 509         ENGINE *e=NULL;
 510         char *inrand=NULL;
 511
 512 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 513         meth=SSLv23_server_method();
 514 #elif !defined(OPENSSL_NO_SSL3)
 515         meth=SSLv3_server_method();
 516 #elif !defined(OPENSSL_NO_SSL2)
 517         meth=SSLv2_server_method();
 518 #endif
 519
 520         local_argc=argc;
 521         local_argv=argv;
 522
 523         apps_startup();
 524 #ifdef MONOLITH
 525         s_server_init();
 526 #endif
 527
 528         if (bio_err == NULL)
 529                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 530
 531         if (!load_config(bio_err, NULL))
 532                 goto end;
 533
 534         verify_depth=0;
 535 #ifdef FIONBIO
 536         s_nbio=0;
 537 #endif
 538         s_nbio_test=0;
 539
 540         argc--;
 541         argv++;
 542
 543         while (argc >= 1)
 544                 {
 545                 if      ((strcmp(*argv,"-port") == 0) ||
 546                          (strcmp(*argv,"-accept") == 0))
 547                         {
 548                         if (--argc < 1) goto bad;
 549                         if (!extract_port(*(++argv),&port))
 550                                 goto bad;
 551                         }
 552                 else if (strcmp(*argv,"-verify") == 0)
 553                         {
 554                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 555                         if (--argc < 1) goto bad;
 556                         verify_depth=atoi(*(++argv));
 557                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 558                         }
 559                 else if (strcmp(*argv,"-Verify") == 0)
 560                         {
 561                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 562                                 SSL_VERIFY_CLIENT_ONCE;
 563                         if (--argc < 1) goto bad;
 564                         verify_depth=atoi(*(++argv));
 565                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 566                         }
 567                 else if (strcmp(*argv,"-context") == 0)
 568                         {
 569                         if (--argc < 1) goto bad;
 570                         context= *(++argv);
 571                         }
 572                 else if (strcmp(*argv,"-cert") == 0)
 573                         {
 574                         if (--argc < 1) goto bad;
 575                         s_cert_file= *(++argv);
 576                         }
 577                 else if (strcmp(*argv,"-key") == 0)
 578                         {
 579                         if (--argc < 1) goto bad;
 580                         s_key_file= *(++argv);
 581                         }
 582                 else if (strcmp(*argv,"-dhparam") == 0)
 583                         {
 584                         if (--argc < 1) goto bad;
 585                         dhfile = *(++argv);
 586                         }
 587 #ifndef OPENSSL_NO_ECDH
 588                 else if (strcmp(*argv,"-named_curve") == 0)
 589                         {
 590                         if (--argc < 1) goto bad;
 591                         named_curve = *(++argv);
 592                         }
 593 #endif
 594                 else if (strcmp(*argv,"-dcert") == 0)
 595                         {
 596                         if (--argc < 1) goto bad;
 597                         s_dcert_file= *(++argv);
 598                         }
 599                 else if (strcmp(*argv,"-dkey") == 0)
 600                         {
 601                         if (--argc < 1) goto bad;
 602                         s_dkey_file= *(++argv);
 603                         }
 604                 else if (strcmp(*argv,"-nocert") == 0)
 605                         {
 606                         nocert=1;
 607                         }
 608                 else if (strcmp(*argv,"-CApath") == 0)
 609                         {
 610                         if (--argc < 1) goto bad;
 611                         CApath= *(++argv);
 612                         }
 613                 else if (strcmp(*argv,"-crl_check") == 0)
 614                         {
 615                         vflags |= X509_V_FLAG_CRL_CHECK;
 616                         }
 617                 else if (strcmp(*argv,"-crl_check") == 0)
 618                         {
 619                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 620                         }
 621                 else if (strcmp(*argv,"-serverpref") == 0)
 622                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
 623                 else if (strcmp(*argv,"-cipher") == 0)
 624                         {
 625                         if (--argc < 1) goto bad;
 626                         cipher= *(++argv);
 627                         }
 628                 else if (strcmp(*argv,"-CAfile") == 0)
 629                         {
 630                         if (--argc < 1) goto bad;
 631                         CAfile= *(++argv);
 632                         }
 633 #ifdef FIONBIO
 634                 else if (strcmp(*argv,"-nbio") == 0)
 635                         { s_nbio=1; }
 636 #endif
 637                 else if (strcmp(*argv,"-nbio_test") == 0)
 638                         {
 639 #ifdef FIONBIO
 640                         s_nbio=1;
 641 #endif
 642                         s_nbio_test=1;
 643                         }
 644                 else if (strcmp(*argv,"-debug") == 0)
 645                         { s_debug=1; }
 646                 else if (strcmp(*argv,"-msg") == 0)
 647                         { s_msg=1; }
 648                 else if (strcmp(*argv,"-hack") == 0)
 649                         { hack=1; }
 650                 else if (strcmp(*argv,"-state") == 0)
 651                         { state=1; }
 652                 else if (strcmp(*argv,"-crlf") == 0)
 653                         { s_crlf=1; }
 654                 else if (strcmp(*argv,"-quiet") == 0)
 655                         { s_quiet=1; }
 656                 else if (strcmp(*argv,"-bugs") == 0)
 657                         { bugs=1; }
 658                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 659                         { no_tmp_rsa=1; }
 660                 else if (strcmp(*argv,"-no_dhe") == 0)
 661                         { no_dhe=1; }
 662                 else if (strcmp(*argv,"-no_ecdhe") == 0)
 663                         { no_ecdhe=1; }
 664                 else if (strcmp(*argv,"-www") == 0)
 665                         { www=1; }
 666                 else if (strcmp(*argv,"-WWW") == 0)
 667                         { www=2; }
 668                 else if (strcmp(*argv,"-HTTP") == 0)
 669                         { www=3; }
 670                 else if (strcmp(*argv,"-no_ssl2") == 0)
 671                         { off|=SSL_OP_NO_SSLv2; }
 672                 else if (strcmp(*argv,"-no_ssl3") == 0)
 673                         { off|=SSL_OP_NO_SSLv3; }
 674                 else if (strcmp(*argv,"-no_tls1") == 0)
 675                         { off|=SSL_OP_NO_TLSv1; }
 676 #ifndef OPENSSL_NO_SSL2
 677                 else if (strcmp(*argv,"-ssl2") == 0)
 678                         { meth=SSLv2_server_method(); }
 679 #endif
 680 #ifndef OPENSSL_NO_SSL3
 681                 else if (strcmp(*argv,"-ssl3") == 0)
 682                         { meth=SSLv3_server_method(); }
 683 #endif
 684 #ifndef OPENSSL_NO_TLS1
 685                 else if (strcmp(*argv,"-tls1") == 0)
 686                         { meth=TLSv1_server_method(); }
 687 #endif
 688                 else if (strcmp(*argv, "-id_prefix") == 0)
 689                         {
 690                         if (--argc < 1) goto bad;
 691                         session_id_prefix = *(++argv);
 692                         }
 693                 else if (strcmp(*argv,"-engine") == 0)
 694                         {
 695                         if (--argc < 1) goto bad;
 696                         engine_id= *(++argv);
 697                         }
 698                 else if (strcmp(*argv,"-rand") == 0)
 699                         {
 700                         if (--argc < 1) goto bad;
 701                         inrand= *(++argv);
 702                         }
 703                 else
 704                         {
 705                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 706                         badop=1;
 707                         break;
 708                         }
 709                 argc--;
 710                 argv++;
 711                 }
 712         if (badop)
 713                 {
 714 bad:
 715                 sv_usage();
 716                 goto end;
 717                 }
 718
 719         SSL_load_error_strings();
 720         OpenSSL_add_ssl_algorithms();
 721
 722         e = setup_engine(bio_err, engine_id, 1);
 723
 724         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 725                 && !RAND_status())
 726                 {
 727                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 728                 }
 729         if (inrand != NULL)
 730                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 731                         app_RAND_load_files(inrand));
 732
 733         if (bio_s_out == NULL)
 734                 {
 735                 if (s_quiet && !s_debug && !s_msg)
 736                         {
 737                         bio_s_out=BIO_new(BIO_s_null());
 738                         }
 739                 else
 740                         {
 741                         if (bio_s_out == NULL)
 742                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 743                         }
 744                 }
 745
 746 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
 747         if (nocert)
 748 #endif
 749                 {
 750                 s_cert_file=NULL;
 751                 s_key_file=NULL;
 752                 s_dcert_file=NULL;
 753                 s_dkey_file=NULL;
 754                 }
 755
 756         ctx=SSL_CTX_new(meth);
 757         if (ctx == NULL)
 758                 {
 759                 ERR_print_errors(bio_err);
 760                 goto end;
 761                 }
 762         if (session_id_prefix)
 763                 {
 764                 if(strlen(session_id_prefix) >= 32)
 765                         BIO_printf(bio_err,
 766 "warning: id_prefix is too long, only one new session will be possible\n");
 767                 else if(strlen(session_id_prefix) >= 16)
 768                         BIO_printf(bio_err,
 769 "warning: id_prefix is too long if you use SSLv2\n");
 770                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
 771                         {
 772                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
 773                         ERR_print_errors(bio_err);
 774                         goto end;
 775                         }
 776                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
 777                 }
 778         SSL_CTX_set_quiet_shutdown(ctx,1);
 779         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 780         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 781         SSL_CTX_set_options(ctx,off);
 782
 783         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 784
 785         SSL_CTX_sess_set_cache_size(ctx,128);
 786
 787 #if 0
 788         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 789 #endif
 790
 791 #if 0
 792         if (s_cert_file == NULL)
 793                 {
 794                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 795                 goto end;
 796                 }
 797 #endif
 798
 799         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 800                 (!SSL_CTX_set_default_verify_paths(ctx)))
 801                 {
 802                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 803                 ERR_print_errors(bio_err);
 804                 /* goto end; */
 805                 }
 806         store = SSL_CTX_get_cert_store(ctx);
 807         X509_STORE_set_flags(store, vflags);
 808
 809 #ifndef OPENSSL_NO_DH
 810         if (!no_dhe)
 811                 {
 812                 DH *dh=NULL;
 813
 814                 if (dhfile)
 815                         dh = load_dh_param(dhfile);
 816                 else if (s_cert_file)
 817                         dh = load_dh_param(s_cert_file);
 818
 819                 if (dh != NULL)
 820                         {
 821                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 822                         }
 823                 else
 824                         {
 825                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 826                         dh=get_dh512();
 827                         }
 828                 (void)BIO_flush(bio_s_out);
 829
 830                 SSL_CTX_set_tmp_dh(ctx,dh);
 831                 DH_free(dh);
 832                 }
 833 #endif
 834
 835 #ifndef OPENSSL_NO_ECDH
 836         if (!no_ecdhe)
 837                 {
 838                 EC_KEY *ecdh=NULL;
 839
 840                 ecdh = EC_KEY_new();
 841                 if (ecdh == NULL)
 842                         {
 843                         BIO_printf(bio_err,"Could not create ECDH struct.\n");
 844                         goto end;
 845                         }
 846
 847                 if (named_curve)
 848                         {
 849                         int nid = OBJ_sn2nid(named_curve);
 850
 851                         if (nid == 0)
 852                                 {
 853                                 BIO_printf(bio_err, "unknown curve name (%s)\n",
 854                                         named_curve);
 855                                 goto end;
 856                                 }
 857
 858                         ecdh->group = EC_GROUP_new_by_nid(nid);
 859                         if (ecdh->group == NULL)
 860                                 {
 861                                 BIO_printf(bio_err, "unable to create curve (%s)\n",
 862                                         named_curve);
 863                                 goto end;
 864                                 }
 865                         }
 866
 867                 if (ecdh->group != NULL)
 868                         {
 869                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
 870                         }
 871                 else
 872                         {
 873                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
 874                         ecdh->group=EC_GROUP_new_by_nid(NID_sect163r2);
 875                         if (ecdh->group == NULL)
 876                                 {
 877                                 BIO_printf(bio_err, "unable to create curve (sect163r2)\n");
 878                                 goto end;
 879                                 }
 880                         }
 881                 (void)BIO_flush(bio_s_out);
 882
 883                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
 884                 EC_KEY_free(ecdh);
 885                 }
 886 #endif
 887
 888         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 889                 goto end;
 890         if (s_dcert_file != NULL)
 891                 {
 892                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 893                         goto end;
 894                 }
 895
 896 #ifndef OPENSSL_NO_RSA
 897 #if 1
 898         if (!no_tmp_rsa)
 899                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 900 #else
 901         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 902                 {
 903                 RSA *rsa;
 904
 905                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 906                 BIO_flush(bio_s_out);
 907
 908                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 909
 910                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 911                         {
 912                         ERR_print_errors(bio_err);
 913                         goto end;
 914                         }
 915                 RSA_free(rsa);
 916                 BIO_printf(bio_s_out,"\n");
 917                 }
 918 #endif
 919 #endif
 920
 921         if (cipher != NULL)
 922                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 923                 BIO_printf(bio_err,"error setting cipher list\n");
 924                 ERR_print_errors(bio_err);
 925                 goto end;
 926         }
 927         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 928         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 929                 sizeof s_server_session_id_context);
 930
 931         if (CAfile != NULL)
 932             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 933
 934         BIO_printf(bio_s_out,"ACCEPT\n");
 935         if (www)
 936                 do_server(port,&accept_socket,www_body, context);
 937         else
 938                 do_server(port,&accept_socket,sv_body, context);
 939         print_stats(bio_s_out,ctx);
 940         ret=0;
 941 end:
 942         if (ctx != NULL) SSL_CTX_free(ctx);
 943         if (bio_s_out != NULL)
 944                 {
 945                 BIO_free(bio_s_out);
 946                 bio_s_out=NULL;
 947                 }
 948         apps_shutdown();
 949         OPENSSL_EXIT(ret);
 950         }
 951
 952 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 953         {
 954         BIO_printf(bio,"%4ld items in the session cache\n",
 955                 SSL_CTX_sess_number(ssl_ctx));
 956         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 957                 SSL_CTX_sess_connect(ssl_ctx));
 958         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 959                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 960         BIO_printf(bio,"%4d client connects that finished\n",
 961                 SSL_CTX_sess_connect_good(ssl_ctx));
 962         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 963                 SSL_CTX_sess_accept(ssl_ctx));
 964         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 965                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 966         BIO_printf(bio,"%4d server accepts that finished\n",
 967                 SSL_CTX_sess_accept_good(ssl_ctx));
 968         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 969         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 970         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 971         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 972         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 973                 SSL_CTX_sess_cache_full(ssl_ctx),
 974                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 975         }
 976
 977 static int sv_body(char *hostname, int s, unsigned char *context)
 978         {
 979         char *buf=NULL;
 980         fd_set readfds;
 981         int ret=1,width;
 982         int k,i;
 983         unsigned long l;
 984         SSL *con=NULL;
 985         BIO *sbio;
 986 #ifdef OPENSSL_SYS_WINDOWS
 987         struct timeval tv;
 988 #endif
 989
 990         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
 991                 {
 992                 BIO_printf(bio_err,"out of memory\n");
 993                 goto err;
 994                 }
 995 #ifdef FIONBIO
 996         if (s_nbio)
 997                 {
 998                 unsigned long sl=1;
 999
1000                 if (!s_quiet)
1001                         BIO_printf(bio_err,"turning on non blocking io\n");
1002                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1003                         ERR_print_errors(bio_err);
1004                 }
1005 #endif
1006
1007         if (con == NULL) {
1008                 con=SSL_new(ctx);
1009 #ifndef OPENSSL_NO_KRB5
1010                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1011                         {
1012                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
1013                                                                 KRB5SVC);
1014                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
1015                                                                 KRB5KEYTAB);
1016                         }
1017 #endif  /* OPENSSL_NO_KRB5 */
1018                 if(context)
1019                       SSL_set_session_id_context(con, context,
1020                                                  strlen((char *)context));
1021         }
1022         SSL_clear(con);
1023
1024         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1025         if (s_nbio_test)
1026                 {
1027                 BIO *test;
1028
1029                 test=BIO_new(BIO_f_nbio_test());
1030                 sbio=BIO_push(test,sbio);
1031                 }
1032         SSL_set_bio(con,sbio,sbio);
1033         SSL_set_accept_state(con);
1034         /* SSL_set_fd(con,s); */
1035
1036         if (s_debug)
1037                 {
1038                 con->debug=1;
1039                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1040                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1041                 }
1042         if (s_msg)
1043                 {
1044                 SSL_set_msg_callback(con, msg_cb);
1045                 SSL_set_msg_callback_arg(con, bio_s_out);
1046                 }
1047
1048         width=s+1;
1049         for (;;)
1050                 {
1051                 int read_from_terminal;
1052                 int read_from_sslcon;
1053
1054                 read_from_terminal = 0;
1055                 read_from_sslcon = SSL_pending(con);
1056
1057                 if (!read_from_sslcon)
1058                         {
1059                         FD_ZERO(&readfds);
1060 #ifndef OPENSSL_SYS_WINDOWS
1061                         FD_SET(fileno(stdin),&readfds);
1062 #endif
1063                         FD_SET(s,&readfds);
1064                         /* Note: under VMS with SOCKETSHR the second parameter is
1065                          * currently of type (int *) whereas under other systems
1066                          * it is (void *) if you don't have a cast it will choke
1067                          * the compiler: if you do have a cast then you can either
1068                          * go for (int *) or (void *).
1069                          */
1070 #ifdef OPENSSL_SYS_WINDOWS
1071                         /* Under Windows we can't select on stdin: only
1072                          * on sockets. As a workaround we timeout the select every
1073                          * second and check for any keypress. In a proper Windows
1074                          * application we wouldn't do this because it is inefficient.
1075                          */
1076                         tv.tv_sec = 1;
1077                         tv.tv_usec = 0;
1078                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
1079                         if((i < 0) || (!i && !_kbhit() ) )continue;
1080                         if(_kbhit())
1081                                 read_from_terminal = 1;
1082 #else
1083                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
1084                         if (i <= 0) continue;
1085                         if (FD_ISSET(fileno(stdin),&readfds))
1086                                 read_from_terminal = 1;
1087 #endif
1088                         if (FD_ISSET(s,&readfds))
1089                                 read_from_sslcon = 1;
1090                         }
1091                 if (read_from_terminal)
1092                         {
1093                         if (s_crlf)
1094                                 {
1095                                 int j, lf_num;
1096
1097                                 i=read(fileno(stdin), buf, bufsize/2);
1098                                 lf_num = 0;
1099                                 /* both loops are skipped when i <= 0 */
1100                                 for (j = 0; j < i; j++)
1101                                         if (buf[j] == '\n')
1102                                                 lf_num++;
1103                                 for (j = i-1; j >= 0; j--)
1104                                         {
1105                                         buf[j+lf_num] = buf[j];
1106                                         if (buf[j] == '\n')
1107                                                 {
1108                                                 lf_num--;
1109                                                 i++;
1110                                                 buf[j+lf_num] = '\r';
1111                                                 }
1112                                         }
1113                                 assert(lf_num == 0);
1114                                 }
1115                         else
1116                                 i=read(fileno(stdin),buf,bufsize);
1117                         if (!s_quiet)
1118                                 {
1119                                 if ((i <= 0) || (buf[0] == 'Q'))
1120                                         {
1121                                         BIO_printf(bio_s_out,"DONE\n");
1122                                         SHUTDOWN(s);
1123                                         close_accept_socket();
1124                                         ret= -11;
1125                                         goto err;
1126                                         }
1127                                 if ((i <= 0) || (buf[0] == 'q'))
1128                                         {
1129                                         BIO_printf(bio_s_out,"DONE\n");
1130                                         SHUTDOWN(s);
1131         /*                              close_accept_socket();
1132                                         ret= -11;*/
1133                                         goto err;
1134                                         }
1135                                 if ((buf[0] == 'r') &&
1136                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1137                                         {
1138                                         SSL_renegotiate(con);
1139                                         i=SSL_do_handshake(con);
1140                                         printf("SSL_do_handshake -> %d\n",i);
1141                                         i=0; /*13; */
1142                                         continue;
1143                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1144                                         }
1145                                 if ((buf[0] == 'R') &&
1146                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1147                                         {
1148                                         SSL_set_verify(con,
1149                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1150                                         SSL_renegotiate(con);
1151                                         i=SSL_do_handshake(con);
1152                                         printf("SSL_do_handshake -> %d\n",i);
1153                                         i=0; /* 13; */
1154                                         continue;
1155                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1156                                         }
1157                                 if (buf[0] == 'P')
1158                                         {
1159                                         static char *str="Lets print some clear text\n";
1160                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1161                                         }
1162                                 if (buf[0] == 'S')
1163                                         {
1164                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1165                                         }
1166                                 }
1167 #ifdef CHARSET_EBCDIC
1168                         ebcdic2ascii(buf,buf,i);
1169 #endif
1170                         l=k=0;
1171                         for (;;)
1172                                 {
1173                                 /* should do a select for the write */
1174 #ifdef RENEG
1175 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1176 #endif
1177                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1178                                 switch (SSL_get_error(con,k))
1179                                         {
1180                                 case SSL_ERROR_NONE:
1181                                         break;
1182                                 case SSL_ERROR_WANT_WRITE:
1183                                 case SSL_ERROR_WANT_READ:
1184                                 case SSL_ERROR_WANT_X509_LOOKUP:
1185                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1186                                         break;
1187                                 case SSL_ERROR_SYSCALL:
1188                                 case SSL_ERROR_SSL:
1189                                         BIO_printf(bio_s_out,"ERROR\n");
1190                                         ERR_print_errors(bio_err);
1191                                         ret=1;
1192                                         goto err;
1193                                         /* break; */
1194                                 case SSL_ERROR_ZERO_RETURN:
1195                                         BIO_printf(bio_s_out,"DONE\n");
1196                                         ret=1;
1197                                         goto err;
1198                                         }
1199                                 l+=k;
1200                                 i-=k;
1201                                 if (i <= 0) break;
1202                                 }
1203                         }
1204                 if (read_from_sslcon)
1205                         {
1206                         if (!SSL_is_init_finished(con))
1207                                 {
1208                                 i=init_ssl_connection(con);
1209
1210                                 if (i < 0)
1211                                         {
1212                                         ret=0;
1213                                         goto err;
1214                                         }
1215                                 else if (i == 0)
1216                                         {
1217                                         ret=1;
1218                                         goto err;
1219                                         }
1220                                 }
1221                         else
1222                                 {
1223 again:
1224                                 i=SSL_read(con,(char *)buf,bufsize);
1225                                 switch (SSL_get_error(con,i))
1226                                         {
1227                                 case SSL_ERROR_NONE:
1228 #ifdef CHARSET_EBCDIC
1229                                         ascii2ebcdic(buf,buf,i);
1230 #endif
1231                                         write(fileno(stdout),buf,
1232                                                 (unsigned int)i);
1233                                         if (SSL_pending(con)) goto again;
1234                                         break;
1235                                 case SSL_ERROR_WANT_WRITE:
1236                                 case SSL_ERROR_WANT_READ:
1237                                 case SSL_ERROR_WANT_X509_LOOKUP:
1238                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1239                                         break;
1240                                 case SSL_ERROR_SYSCALL:
1241                                 case SSL_ERROR_SSL:
1242                                         BIO_printf(bio_s_out,"ERROR\n");
1243                                         ERR_print_errors(bio_err);
1244                                         ret=1;
1245                                         goto err;
1246                                 case SSL_ERROR_ZERO_RETURN:
1247                                         BIO_printf(bio_s_out,"DONE\n");
1248                                         ret=1;
1249                                         goto err;
1250                                         }
1251                                 }
1252                         }
1253                 }
1254 err:
1255         BIO_printf(bio_s_out,"shutting down SSL\n");
1256 #if 1
1257         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1258 #else
1259         SSL_shutdown(con);
1260 #endif
1261         if (con != NULL) SSL_free(con);
1262         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1263         if (buf != NULL)
1264                 {
1265                 OPENSSL_cleanse(buf,bufsize);
1266                 OPENSSL_free(buf);
1267                 }
1268         if (ret >= 0)
1269                 BIO_printf(bio_s_out,"ACCEPT\n");
1270         return(ret);
1271         }
1272
1273 static void close_accept_socket(void)
1274         {
1275         BIO_printf(bio_err,"shutdown accept socket\n");
1276         if (accept_socket >= 0)
1277                 {
1278                 SHUTDOWN2(accept_socket);
1279                 }
1280         }
1281
1282 static int init_ssl_connection(SSL *con)
1283         {
1284         int i;
1285         const char *str;
1286         X509 *peer;
1287         long verify_error;
1288         MS_STATIC char buf[BUFSIZ];
1289
1290         if ((i=SSL_accept(con)) <= 0)
1291                 {
1292                 if (BIO_sock_should_retry(i))
1293                         {
1294                         BIO_printf(bio_s_out,"DELAY\n");
1295                         return(1);
1296                         }
1297
1298                 BIO_printf(bio_err,"ERROR\n");
1299                 verify_error=SSL_get_verify_result(con);
1300                 if (verify_error != X509_V_OK)
1301                         {
1302                         BIO_printf(bio_err,"verify error:%s\n",
1303                                 X509_verify_cert_error_string(verify_error));
1304                         }
1305                 else
1306                         ERR_print_errors(bio_err);
1307                 return(0);
1308                 }
1309
1310         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1311
1312         peer=SSL_get_peer_certificate(con);
1313         if (peer != NULL)
1314                 {
1315                 BIO_printf(bio_s_out,"Client certificate\n");
1316                 PEM_write_bio_X509(bio_s_out,peer);
1317                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
1318                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1319                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
1320                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1321                 X509_free(peer);
1322                 }
1323
1324         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
1325                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1326         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1327         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1328         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1329         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1330                 TLS1_FLAGS_TLS_PADDING_BUG)
1331                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1332
1333         return(1);
1334         }
1335
1336 #ifndef OPENSSL_NO_DH
1337 static DH *load_dh_param(char *dhfile)
1338         {
1339         DH *ret=NULL;
1340         BIO *bio;
1341
1342         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1343                 goto err;
1344         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1345 err:
1346         if (bio != NULL) BIO_free(bio);
1347         return(ret);
1348         }
1349 #endif
1350
1351 #if 0
1352 static int load_CA(SSL_CTX *ctx, char *file)
1353         {
1354         FILE *in;
1355         X509 *x=NULL;
1356
1357         if ((in=fopen(file,"r")) == NULL)
1358                 return(0);
1359
1360         for (;;)
1361                 {
1362                 if (PEM_read_X509(in,&x,NULL) == NULL)
1363                         break;
1364                 SSL_CTX_add_client_CA(ctx,x);
1365                 }
1366         if (x != NULL) X509_free(x);
1367         fclose(in);
1368         return(1);
1369         }
1370 #endif
1371
1372 static int www_body(char *hostname, int s, unsigned char *context)
1373         {
1374         char *buf=NULL;
1375         int ret=1;
1376         int i,j,k,blank,dot;
1377         struct stat st_buf;
1378         SSL *con;
1379         SSL_CIPHER *c;
1380         BIO *io,*ssl_bio,*sbio;
1381         long total_bytes;
1382
1383         buf=OPENSSL_malloc(bufsize);
1384         if (buf == NULL) return(0);
1385         io=BIO_new(BIO_f_buffer());
1386         ssl_bio=BIO_new(BIO_f_ssl());
1387         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1388
1389 #ifdef FIONBIO
1390         if (s_nbio)
1391                 {
1392                 unsigned long sl=1;
1393
1394                 if (!s_quiet)
1395                         BIO_printf(bio_err,"turning on non blocking io\n");
1396                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1397                         ERR_print_errors(bio_err);
1398                 }
1399 #endif
1400
1401         /* lets make the output buffer a reasonable size */
1402         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1403
1404         if ((con=SSL_new(ctx)) == NULL) goto err;
1405 #ifndef OPENSSL_NO_KRB5
1406         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1407                 {
1408                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
1409                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
1410                 }
1411 #endif  /* OPENSSL_NO_KRB5 */
1412         if(context) SSL_set_session_id_context(con, context,
1413                                                strlen((char *)context));
1414
1415         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1416         if (s_nbio_test)
1417                 {
1418                 BIO *test;
1419
1420                 test=BIO_new(BIO_f_nbio_test());
1421                 sbio=BIO_push(test,sbio);
1422                 }
1423         SSL_set_bio(con,sbio,sbio);
1424         SSL_set_accept_state(con);
1425
1426         /* SSL_set_fd(con,s); */
1427         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1428         BIO_push(io,ssl_bio);
1429 #ifdef CHARSET_EBCDIC
1430         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1431 #endif
1432
1433         if (s_debug)
1434                 {
1435                 con->debug=1;
1436                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1437                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1438                 }
1439         if (s_msg)
1440                 {
1441                 SSL_set_msg_callback(con, msg_cb);
1442                 SSL_set_msg_callback_arg(con, bio_s_out);
1443                 }
1444
1445         blank=0;
1446         for (;;)
1447                 {
1448                 if (hack)
1449                         {
1450                         i=SSL_accept(con);
1451
1452                         switch (SSL_get_error(con,i))
1453                                 {
1454                         case SSL_ERROR_NONE:
1455                                 break;
1456                         case SSL_ERROR_WANT_WRITE:
1457                         case SSL_ERROR_WANT_READ:
1458                         case SSL_ERROR_WANT_X509_LOOKUP:
1459                                 continue;
1460                         case SSL_ERROR_SYSCALL:
1461                         case SSL_ERROR_SSL:
1462                         case SSL_ERROR_ZERO_RETURN:
1463                                 ret=1;
1464                                 goto err;
1465                                 /* break; */
1466                                 }
1467
1468                         SSL_renegotiate(con);
1469                         SSL_write(con,NULL,0);
1470                         }
1471
1472                 i=BIO_gets(io,buf,bufsize-1);
1473                 if (i < 0) /* error */
1474                         {
1475                         if (!BIO_should_retry(io))
1476                                 {
1477                                 if (!s_quiet)
1478                                         ERR_print_errors(bio_err);
1479                                 goto err;
1480                                 }
1481                         else
1482                                 {
1483                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1484 #if !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
1485                                 sleep(1);
1486 #endif
1487                                 continue;
1488                                 }
1489                         }
1490                 else if (i == 0) /* end of input */
1491                         {
1492                         ret=1;
1493                         goto end;
1494                         }
1495
1496                 /* else we have data */
1497                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1498                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1499                         {
1500                         char *p;
1501                         X509 *peer;
1502                         STACK_OF(SSL_CIPHER) *sk;
1503                         static char *space="                          ";
1504
1505                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1506                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1507                         BIO_puts(io,"<pre>\n");
1508 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1509                         BIO_puts(io,"\n");
1510                         for (i=0; i<local_argc; i++)
1511                                 {
1512                                 BIO_puts(io,local_argv[i]);
1513                                 BIO_write(io," ",1);
1514                                 }
1515                         BIO_puts(io,"\n");
1516
1517                         /* The following is evil and should not really
1518                          * be done */
1519                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1520                         sk=SSL_get_ciphers(con);
1521                         j=sk_SSL_CIPHER_num(sk);
1522                         for (i=0; i<j; i++)
1523                                 {
1524                                 c=sk_SSL_CIPHER_value(sk,i);
1525                                 BIO_printf(io,"%-11s:%-25s",
1526                                         SSL_CIPHER_get_version(c),
1527                                         SSL_CIPHER_get_name(c));
1528                                 if ((((i+1)%2) == 0) && (i+1 != j))
1529                                         BIO_puts(io,"\n");
1530                                 }
1531                         BIO_puts(io,"\n");
1532                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1533                         if (p != NULL)
1534                                 {
1535                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1536                                 j=i=0;
1537                                 while (*p)
1538                                         {
1539                                         if (*p == ':')
1540                                                 {
1541                                                 BIO_write(io,space,26-j);
1542                                                 i++;
1543                                                 j=0;
1544                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1545                                                 }
1546                                         else
1547                                                 {
1548                                                 BIO_write(io,p,1);
1549                                                 j++;
1550                                                 }
1551                                         p++;
1552                                         }
1553                                 BIO_puts(io,"\n");
1554                                 }
1555                         BIO_printf(io,((con->hit)
1556                                 ?"---\nReused, "
1557                                 :"---\nNew, "));
1558                         c=SSL_get_current_cipher(con);
1559                         BIO_printf(io,"%s, Cipher is %s\n",
1560                                 SSL_CIPHER_get_version(c),
1561                                 SSL_CIPHER_get_name(c));
1562                         SSL_SESSION_print(io,SSL_get_session(con));
1563                         BIO_printf(io,"---\n");
1564                         print_stats(io,SSL_get_SSL_CTX(con));
1565                         BIO_printf(io,"---\n");
1566                         peer=SSL_get_peer_certificate(con);
1567                         if (peer != NULL)
1568                                 {
1569                                 BIO_printf(io,"Client certificate\n");
1570                                 X509_print(io,peer);
1571                                 PEM_write_bio_X509(io,peer);
1572                                 }
1573                         else
1574                                 BIO_puts(io,"no client certificate available\n");
1575                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1576                         break;
1577                         }
1578                 else if ((www == 2 || www == 3)
1579                          && (strncmp("GET /",buf,5) == 0))
1580                         {
1581                         BIO *file;
1582                         char *p,*e;
1583                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1584
1585                         /* skip the '/' */
1586                         p= &(buf[5]);
1587
1588                         dot = 1;
1589                         for (e=p; *e != '\0'; e++)
1590                                 {
1591                                 if (e[0] == ' ')
1592                                         break;
1593
1594                                 switch (dot)
1595                                         {
1596                                 case 1:
1597                                         dot = (e[0] == '.') ? 2 : 0;
1598                                         break;
1599                                 case 2:
1600                                         dot = (e[0] == '.') ? 3 : 0;
1601                                         break;
1602                                 case 3:
1603                                         dot = (e[0] == '/') ? -1 : 0;
1604                                         break;
1605                                         }
1606                                 if (dot == 0)
1607                                         dot = (e[0] == '/') ? 1 : 0;
1608                                 }
1609                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
1610
1611                         if (*e == '\0')
1612                                 {
1613                                 BIO_puts(io,text);
1614                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1615                                 break;
1616                                 }
1617                         *e='\0';
1618
1619                         if (dot)
1620                                 {
1621                                 BIO_puts(io,text);
1622                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1623                                 break;
1624                                 }
1625
1626                         if (*p == '/')
1627                                 {
1628                                 BIO_puts(io,text);
1629                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1630                                 break;
1631                                 }
1632
1633 #if 0
1634                         /* append if a directory lookup */
1635                         if (e[-1] == '/')
1636                                 strcat(p,"index.html");
1637 #endif
1638
1639                         /* if a directory, do the index thang */
1640                         if (stat(p,&st_buf) < 0)
1641                                 {
1642                                 BIO_puts(io,text);
1643                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1644                                 ERR_print_errors(io);
1645                                 break;
1646                                 }
1647                         if (S_ISDIR(st_buf.st_mode))
1648                                 {
1649 #if 0 /* must check buffer size */
1650                                 strcat(p,"/index.html");
1651 #else
1652                                 BIO_puts(io,text);
1653                                 BIO_printf(io,"'%s' is a directory\r\n",p);
1654                                 break;
1655 #endif
1656                                 }
1657
1658                         if ((file=BIO_new_file(p,"r")) == NULL)
1659                                 {
1660                                 BIO_puts(io,text);
1661                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1662                                 ERR_print_errors(io);
1663                                 break;
1664                                 }
1665
1666                         if (!s_quiet)
1667                                 BIO_printf(bio_err,"FILE:%s\n",p);
1668
1669                         if (www == 2)
1670                                 {
1671                                 i=strlen(p);
1672                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1673                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1674                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1675                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1676                                 else
1677                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1678                                 }
1679                         /* send the file */
1680                         total_bytes=0;
1681                         for (;;)
1682                                 {
1683                                 i=BIO_read(file,buf,bufsize);
1684                                 if (i <= 0) break;
1685
1686 #ifdef RENEG
1687                                 total_bytes+=i;
1688                                 fprintf(stderr,"%d\n",i);
1689                                 if (total_bytes > 3*1024)
1690                                         {
1691                                         total_bytes=0;
1692                                         fprintf(stderr,"RENEGOTIATE\n");
1693                                         SSL_renegotiate(con);
1694                                         }
1695 #endif
1696
1697                                 for (j=0; j<i; )
1698                                         {
1699 #ifdef RENEG
1700 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1701 #endif
1702                                         k=BIO_write(io,&(buf[j]),i-j);
1703                                         if (k <= 0)
1704                                                 {
1705                                                 if (!BIO_should_retry(io))
1706                                                         goto write_error;
1707                                                 else
1708                                                         {
1709                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1710                                                         }
1711                                                 }
1712                                         else
1713                                                 {
1714                                                 j+=k;
1715                                                 }
1716                                         }
1717                                 }
1718 write_error:
1719                         BIO_free(file);
1720                         break;
1721                         }
1722                 }
1723
1724         for (;;)
1725                 {
1726                 i=(int)BIO_flush(io);
1727                 if (i <= 0)
1728                         {
1729                         if (!BIO_should_retry(io))
1730                                 break;
1731                         }
1732                 else
1733                         break;
1734                 }
1735 end:
1736 #if 1
1737         /* make sure we re-use sessions */
1738         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1739 #else
1740         /* This kills performance */
1741 /*      SSL_shutdown(con); A shutdown gets sent in the
1742  *      BIO_free_all(io) procession */
1743 #endif
1744
1745 err:
1746
1747         if (ret >= 0)
1748                 BIO_printf(bio_s_out,"ACCEPT\n");
1749
1750         if (buf != NULL) OPENSSL_free(buf);
1751         if (io != NULL) BIO_free_all(io);
1752 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1753         return(ret);
1754         }
1755
1756 #ifndef OPENSSL_NO_RSA
1757 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1758         {
1759         static RSA *rsa_tmp=NULL;
1760
1761         if (rsa_tmp == NULL)
1762                 {
1763                 if (!s_quiet)
1764                         {
1765                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1766                         (void)BIO_flush(bio_err);
1767                         }
1768                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1769                 if (!s_quiet)
1770                         {
1771                         BIO_printf(bio_err,"\n");
1772                         (void)BIO_flush(bio_err);
1773                         }
1774                 }
1775         return(rsa_tmp);
1776         }
1777 #endif
1778
1779 #define MAX_SESSION_ID_ATTEMPTS 10
1780 static int generate_session_id(const SSL *ssl, unsigned char *id,
1781                                 unsigned int *id_len)
1782         {
1783         unsigned int count = 0;
1784         do      {
1785                 RAND_pseudo_bytes(id, *id_len);
1786                 /* Prefix the session_id with the required prefix. NB: If our
1787                  * prefix is too long, clip it - but there will be worse effects
1788                  * anyway, eg. the server could only possibly create 1 session
1789                  * ID (ie. the prefix!) so all future session negotiations will
1790                  * fail due to conflicts. */
1791                 memcpy(id, session_id_prefix,
1792                         (strlen(session_id_prefix) < *id_len) ?
1793                         strlen(session_id_prefix) : *id_len);
1794                 }
1795         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
1796                 (++count < MAX_SESSION_ID_ATTEMPTS));
1797         if(count >= MAX_SESSION_ID_ATTEMPTS)
1798                 return 0;
1799         return 1;
1800         }