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