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