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 #include <assert.h>
  60 #include <stdio.h>
  61 #include <stdlib.h>
  62 #include <string.h>
  63 #include <sys/types.h>
  64 #include <sys/stat.h>
  65 #include <openssl/e_os2.h>
  66 #ifdef OPENSSL_NO_STDIO
  67 #define APPS_WIN16
  68 #endif
  69
  70 /* With IPv6, it looks like Digital has mixed up the proper order of
  71    recursive header file inclusion, resulting in the compiler complaining
  72    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
  73    is needed to have fileno() declared correctly...  So let's define u_int */
  74 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
  75 #define __U_INT
  76 typedef unsigned int u_int;
  77 #endif
  78
  79 #include <openssl/lhash.h>
  80 #include <openssl/bn.h>
  81 #define USE_SOCKETS
  82 #include "apps.h"
  83 #include <openssl/err.h>
  84 #include <openssl/pem.h>
  85 #include <openssl/x509.h>
  86 #include <openssl/ssl.h>
  87 #include <openssl/engine.h>
  88 #include "s_apps.h"
  89
  90 #ifdef OPENSSL_SYS_WINDOWS
  91 #include <conio.h>
  92 #endif
  93
  94 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
  95 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
  96 #undef FIONBIO
  97 #endif
  98
  99 #ifndef OPENSSL_NO_RSA
 100 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 101 #endif
 102 static int sv_body(char *hostname, int s, unsigned char *context);
 103 static int www_body(char *hostname, int s, unsigned char *context);
 104 static void close_accept_socket(void );
 105 static void sv_usage(void);
 106 static int init_ssl_connection(SSL *s);
 107 static void print_stats(BIO *bp,SSL_CTX *ctx);
 108 static int generate_session_id(const SSL *ssl, unsigned char *id,
 109                                 unsigned int *id_len);
 110 #ifndef OPENSSL_NO_DH
 111 static DH *load_dh_param(char *dhfile);
 112 static DH *get_dh512(void);
 113 #endif
 114 #ifdef MONOLITH
 115 static void s_server_init(void);
 116 #endif
 117
 118 #ifndef S_ISDIR
 119 # if defined(_S_IFMT) && defined(_S_IFDIR)
 120 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 121 # else
 122 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 123 # endif
 124 #endif
 125
 126 #ifndef OPENSSL_NO_DH
 127 static unsigned char dh512_p[]={
 128         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 129         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 130         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 131         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 132         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 133         0x47,0x74,0xE8,0x33,
 134         };
 135 static unsigned char dh512_g[]={
 136         0x02,
 137         };
 138
 139 static DH *get_dh512(void)
 140         {
 141         DH *dh=NULL;
 142
 143         if ((dh=DH_new()) == NULL) return(NULL);
 144         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 145         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 146         if ((dh->p == NULL) || (dh->g == NULL))
 147                 return(NULL);
 148         return(dh);
 149         }
 150 #endif
 151
 152 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 153
 154 #undef BUFSIZZ
 155 #define BUFSIZZ 16*1024
 156 static int bufsize=BUFSIZZ;
 157 static int accept_socket= -1;
 158
 159 #define TEST_CERT       "server.pem"
 160 #undef PROG
 161 #define PROG            s_server_main
 162
 163 extern int verify_depth;
 164
 165 static char *cipher=NULL;
 166 static int s_server_verify=SSL_VERIFY_NONE;
 167 static int s_server_session_id_context = 1; /* anything will do */
 168 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 169 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 170 #ifdef FIONBIO
 171 static int s_nbio=0;
 172 #endif
 173 static int s_nbio_test=0;
 174 int s_crlf=0;
 175 static SSL_CTX *ctx=NULL;
 176 static int www=0;
 177
 178 static BIO *bio_s_out=NULL;
 179 static int s_debug=0;
 180 static int s_quiet=0;
 181
 182 static int hack=0;
 183 static char *engine_id=NULL;
 184 static const char *session_id_prefix=NULL;
 185
 186 #ifdef MONOLITH
 187 static void s_server_init(void)
 188         {
 189         accept_socket=-1;
 190         cipher=NULL;
 191         s_server_verify=SSL_VERIFY_NONE;
 192         s_dcert_file=NULL;
 193         s_dkey_file=NULL;
 194         s_cert_file=TEST_CERT;
 195         s_key_file=NULL;
 196 #ifdef FIONBIO
 197         s_nbio=0;
 198 #endif
 199         s_nbio_test=0;
 200         ctx=NULL;
 201         www=0;
 202
 203         bio_s_out=NULL;
 204         s_debug=0;
 205         s_quiet=0;
 206         hack=0;
 207         engine_id=NULL;
 208         }
 209 #endif
 210
 211 static void sv_usage(void)
 212         {
 213         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 214         BIO_printf(bio_err,"\n");
 215         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 216         BIO_printf(bio_err," -context arg  - set session ID context\n");
 217         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 218         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 219         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 220         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 221         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
 222         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 223         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 224         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 225         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 226         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 227 #ifdef FIONBIO
 228         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 229 #endif
 230         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 231         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 232         BIO_printf(bio_err," -debug        - Print more output\n");
 233         BIO_printf(bio_err," -state        - Print the SSL states\n");
 234         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 235         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 236         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 237         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 238         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 239         BIO_printf(bio_err," -quiet        - No server output\n");
 240         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 241         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 242         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 243         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 244         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 245         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 246         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 247 #ifndef OPENSSL_NO_DH
 248         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 249 #endif
 250         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 251         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 252         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 253         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 254         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 255         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 256         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 257         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 258         }
 259
 260 static int local_argc=0;
 261 static char **local_argv;
 262
 263 #ifdef CHARSET_EBCDIC
 264 static int ebcdic_new(BIO *bi);
 265 static int ebcdic_free(BIO *a);
 266 static int ebcdic_read(BIO *b, char *out, int outl);
 267 static int ebcdic_write(BIO *b, char *in, int inl);
 268 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
 269 static int ebcdic_gets(BIO *bp, char *buf, int size);
 270 static int ebcdic_puts(BIO *bp, char *str);
 271
 272 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 273 static BIO_METHOD methods_ebcdic=
 274         {
 275         BIO_TYPE_EBCDIC_FILTER,
 276         "EBCDIC/ASCII filter",
 277         ebcdic_write,
 278         ebcdic_read,
 279         ebcdic_puts,
 280         ebcdic_gets,
 281         ebcdic_ctrl,
 282         ebcdic_new,
 283         ebcdic_free,
 284         };
 285
 286 typedef struct
 287 {
 288         size_t  alloced;
 289         char    buff[1];
 290 } EBCDIC_OUTBUFF;
 291
 292 BIO_METHOD *BIO_f_ebcdic_filter()
 293 {
 294         return(&methods_ebcdic);
 295 }
 296
 297 static int ebcdic_new(BIO *bi)
 298 {
 299         EBCDIC_OUTBUFF *wbuf;
 300
 301         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 302         wbuf->alloced = 1024;
 303         wbuf->buff[0] = '\0';
 304
 305         bi->ptr=(char *)wbuf;
 306         bi->init=1;
 307         bi->flags=0;
 308         return(1);
 309 }
 310
 311 static int ebcdic_free(BIO *a)
 312 {
 313         if (a == NULL) return(0);
 314         if (a->ptr != NULL)
 315                 OPENSSL_free(a->ptr);
 316         a->ptr=NULL;
 317         a->init=0;
 318         a->flags=0;
 319         return(1);
 320 }
 321
 322 static int ebcdic_read(BIO *b, char *out, int outl)
 323 {
 324         int ret=0;
 325
 326         if (out == NULL || outl == 0) return(0);
 327         if (b->next_bio == NULL) return(0);
 328
 329         ret=BIO_read(b->next_bio,out,outl);
 330         if (ret > 0)
 331                 ascii2ebcdic(out,out,ret);
 332         return(ret);
 333 }
 334
 335 static int ebcdic_write(BIO *b, char *in, int inl)
 336 {
 337         EBCDIC_OUTBUFF *wbuf;
 338         int ret=0;
 339         int num;
 340         unsigned char n;
 341
 342         if ((in == NULL) || (inl <= 0)) return(0);
 343         if (b->next_bio == NULL) return(0);
 344
 345         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 346
 347         if (inl > (num = wbuf->alloced))
 348         {
 349                 num = num + num;  /* double the size */
 350                 if (num < inl)
 351                         num = inl;
 352                 OPENSSL_free(wbuf);
 353                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 354
 355                 wbuf->alloced = num;
 356                 wbuf->buff[0] = '\0';
 357
 358                 b->ptr=(char *)wbuf;
 359         }
 360
 361         ebcdic2ascii(wbuf->buff, in, inl);
 362
 363         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 364
 365         return(ret);
 366 }
 367
 368 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
 369 {
 370         long ret;
 371
 372         if (b->next_bio == NULL) return(0);
 373         switch (cmd)
 374         {
 375         case BIO_CTRL_DUP:
 376                 ret=0L;
 377                 break;
 378         default:
 379                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 380                 break;
 381         }
 382         return(ret);
 383 }
 384
 385 static int ebcdic_gets(BIO *bp, char *buf, int size)
 386 {
 387         int i, ret;
 388         if (bp->next_bio == NULL) return(0);
 389 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 390         for (i=0; i<size-1; ++i)
 391         {
 392                 ret = ebcdic_read(bp,&buf[i],1);
 393                 if (ret <= 0)
 394                         break;
 395                 else if (buf[i] == '\n')
 396                 {
 397                         ++i;
 398                         break;
 399                 }
 400         }
 401         if (i < size)
 402                 buf[i] = '\0';
 403         return (ret < 0 && i == 0) ? ret : i;
 404 }
 405
 406 static int ebcdic_puts(BIO *bp, char *str)
 407 {
 408         if (bp->next_bio == NULL) return(0);
 409         return ebcdic_write(bp, str, strlen(str));
 410 }
 411 #endif
 412
 413 int MAIN(int, char **);
 414
 415 int MAIN(int argc, char *argv[])
 416         {
 417         short port=PORT;
 418         char *CApath=NULL,*CAfile=NULL;
 419         char *context = NULL;
 420         char *dhfile = NULL;
 421         int badop=0,bugs=0;
 422         int ret=1;
 423         int off=0;
 424         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 425         int state=0;
 426         SSL_METHOD *meth=NULL;
 427         ENGINE *e=NULL;
 428         char *inrand=NULL;
 429
 430 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 431         meth=SSLv23_server_method();
 432 #elif !defined(OPENSSL_NO_SSL3)
 433         meth=SSLv3_server_method();
 434 #elif !defined(OPENSSL_NO_SSL2)
 435         meth=SSLv2_server_method();
 436 #endif
 437
 438         local_argc=argc;
 439         local_argv=argv;
 440
 441         apps_startup();
 442 #ifdef MONOLITH
 443         s_server_init();
 444 #endif
 445
 446         if (bio_err == NULL)
 447                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 448
 449         verify_depth=0;
 450 #ifdef FIONBIO
 451         s_nbio=0;
 452 #endif
 453         s_nbio_test=0;
 454
 455         argc--;
 456         argv++;
 457
 458         while (argc >= 1)
 459                 {
 460                 if      ((strcmp(*argv,"-port") == 0) ||
 461                          (strcmp(*argv,"-accept") == 0))
 462                         {
 463                         if (--argc < 1) goto bad;
 464                         if (!extract_port(*(++argv),&port))
 465                                 goto bad;
 466                         }
 467                 else if (strcmp(*argv,"-verify") == 0)
 468                         {
 469                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 470                         if (--argc < 1) goto bad;
 471                         verify_depth=atoi(*(++argv));
 472                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 473                         }
 474                 else if (strcmp(*argv,"-Verify") == 0)
 475                         {
 476                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 477                                 SSL_VERIFY_CLIENT_ONCE;
 478                         if (--argc < 1) goto bad;
 479                         verify_depth=atoi(*(++argv));
 480                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 481                         }
 482                 else if (strcmp(*argv,"-context") == 0)
 483                         {
 484                         if (--argc < 1) goto bad;
 485                         context= *(++argv);
 486                         }
 487                 else if (strcmp(*argv,"-cert") == 0)
 488                         {
 489                         if (--argc < 1) goto bad;
 490                         s_cert_file= *(++argv);
 491                         }
 492                 else if (strcmp(*argv,"-key") == 0)
 493                         {
 494                         if (--argc < 1) goto bad;
 495                         s_key_file= *(++argv);
 496                         }
 497                 else if (strcmp(*argv,"-dhparam") == 0)
 498                         {
 499                         if (--argc < 1) goto bad;
 500                         dhfile = *(++argv);
 501                         }
 502                 else if (strcmp(*argv,"-dcert") == 0)
 503                         {
 504                         if (--argc < 1) goto bad;
 505                         s_dcert_file= *(++argv);
 506                         }
 507                 else if (strcmp(*argv,"-dkey") == 0)
 508                         {
 509                         if (--argc < 1) goto bad;
 510                         s_dkey_file= *(++argv);
 511                         }
 512                 else if (strcmp(*argv,"-nocert") == 0)
 513                         {
 514                         nocert=1;
 515                         }
 516                 else if (strcmp(*argv,"-CApath") == 0)
 517                         {
 518                         if (--argc < 1) goto bad;
 519                         CApath= *(++argv);
 520                         }
 521                 else if (strcmp(*argv,"-serverpref") == 0)
 522                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
 523                 else if (strcmp(*argv,"-cipher") == 0)
 524                         {
 525                         if (--argc < 1) goto bad;
 526                         cipher= *(++argv);
 527                         }
 528                 else if (strcmp(*argv,"-CAfile") == 0)
 529                         {
 530                         if (--argc < 1) goto bad;
 531                         CAfile= *(++argv);
 532                         }
 533 #ifdef FIONBIO
 534                 else if (strcmp(*argv,"-nbio") == 0)
 535                         { s_nbio=1; }
 536 #endif
 537                 else if (strcmp(*argv,"-nbio_test") == 0)
 538                         {
 539 #ifdef FIONBIO
 540                         s_nbio=1;
 541 #endif
 542                         s_nbio_test=1;
 543                         }
 544                 else if (strcmp(*argv,"-debug") == 0)
 545                         { s_debug=1; }
 546                 else if (strcmp(*argv,"-hack") == 0)
 547                         { hack=1; }
 548                 else if (strcmp(*argv,"-state") == 0)
 549                         { state=1; }
 550                 else if (strcmp(*argv,"-crlf") == 0)
 551                         { s_crlf=1; }
 552                 else if (strcmp(*argv,"-quiet") == 0)
 553                         { s_quiet=1; }
 554                 else if (strcmp(*argv,"-bugs") == 0)
 555                         { bugs=1; }
 556                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 557                         { no_tmp_rsa=1; }
 558                 else if (strcmp(*argv,"-no_dhe") == 0)
 559                         { no_dhe=1; }
 560                 else if (strcmp(*argv,"-www") == 0)
 561                         { www=1; }
 562                 else if (strcmp(*argv,"-WWW") == 0)
 563                         { www=2; }
 564                 else if (strcmp(*argv,"-HTTP") == 0)
 565                         { www=3; }
 566                 else if (strcmp(*argv,"-no_ssl2") == 0)
 567                         { off|=SSL_OP_NO_SSLv2; }
 568                 else if (strcmp(*argv,"-no_ssl3") == 0)
 569                         { off|=SSL_OP_NO_SSLv3; }
 570                 else if (strcmp(*argv,"-no_tls1") == 0)
 571                         { off|=SSL_OP_NO_TLSv1; }
 572 #ifndef OPENSSL_NO_SSL2
 573                 else if (strcmp(*argv,"-ssl2") == 0)
 574                         { meth=SSLv2_server_method(); }
 575 #endif
 576 #ifndef OPENSSL_NO_SSL3
 577                 else if (strcmp(*argv,"-ssl3") == 0)
 578                         { meth=SSLv3_server_method(); }
 579 #endif
 580 #ifndef OPENSSL_NO_TLS1
 581                 else if (strcmp(*argv,"-tls1") == 0)
 582                         { meth=TLSv1_server_method(); }
 583 #endif
 584                 else if (strcmp(*argv, "-id_prefix") == 0)
 585                         {
 586                         if (--argc < 1) goto bad;
 587                         session_id_prefix = *(++argv);
 588                         }
 589                 else if (strcmp(*argv,"-engine") == 0)
 590                         {
 591                         if (--argc < 1) goto bad;
 592                         engine_id= *(++argv);
 593                         }
 594                 else if (strcmp(*argv,"-rand") == 0)
 595                         {
 596                         if (--argc < 1) goto bad;
 597                         inrand= *(++argv);
 598                         }
 599                 else
 600                         {
 601                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 602                         badop=1;
 603                         break;
 604                         }
 605                 argc--;
 606                 argv++;
 607                 }
 608         if (badop)
 609                 {
 610 bad:
 611                 sv_usage();
 612                 goto end;
 613                 }
 614
 615         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 616                 && !RAND_status())
 617                 {
 618                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 619                 }
 620         if (inrand != NULL)
 621                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 622                         app_RAND_load_files(inrand));
 623
 624         if (bio_s_out == NULL)
 625                 {
 626                 if (s_quiet && !s_debug)
 627                         {
 628                         bio_s_out=BIO_new(BIO_s_null());
 629                         }
 630                 else
 631                         {
 632                         if (bio_s_out == NULL)
 633                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 634                         }
 635                 }
 636
 637 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA)
 638         if (nocert)
 639 #endif
 640                 {
 641                 s_cert_file=NULL;
 642                 s_key_file=NULL;
 643                 s_dcert_file=NULL;
 644                 s_dkey_file=NULL;
 645                 }
 646
 647         SSL_load_error_strings();
 648         OpenSSL_add_ssl_algorithms();
 649
 650         if (engine_id != NULL)
 651                 {
 652                 if((e = ENGINE_by_id(engine_id)) == NULL)
 653                         {
 654                         BIO_printf(bio_err,"invalid engine\n");
 655                         ERR_print_errors(bio_err);
 656                         goto end;
 657                         }
 658                 if (s_debug)
 659                         {
 660                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
 661                                 0, bio_err, 0);
 662                         }
 663                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
 664                         {
 665                         BIO_printf(bio_err,"can't use that engine\n");
 666                         ERR_print_errors(bio_err);
 667                         goto end;
 668                         }
 669                 BIO_printf(bio_err,"engine \"%s\" set.\n", engine_id);
 670                 ENGINE_free(e);
 671                 }
 672
 673         ctx=SSL_CTX_new(meth);
 674         if (ctx == NULL)
 675                 {
 676                 ERR_print_errors(bio_err);
 677                 goto end;
 678                 }
 679         if (session_id_prefix)
 680                 {
 681                 if(strlen(session_id_prefix) >= 32)
 682                         BIO_printf(bio_err,
 683 "warning: id_prefix is too long, only one new session will be possible\n");
 684                 else if(strlen(session_id_prefix) >= 16)
 685                         BIO_printf(bio_err,
 686 "warning: id_prefix is too long if you use SSLv2\n");
 687                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
 688                         {
 689                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
 690                         ERR_print_errors(bio_err);
 691                         goto end;
 692                         }
 693                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
 694                 }
 695         SSL_CTX_set_quiet_shutdown(ctx,1);
 696         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 697         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 698         SSL_CTX_set_options(ctx,off);
 699         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 700
 701         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 702
 703         SSL_CTX_sess_set_cache_size(ctx,128);
 704
 705 #if 0
 706         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 707 #endif
 708
 709 #if 0
 710         if (s_cert_file == NULL)
 711                 {
 712                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 713                 goto end;
 714                 }
 715 #endif
 716
 717         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 718                 (!SSL_CTX_set_default_verify_paths(ctx)))
 719                 {
 720                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 721                 ERR_print_errors(bio_err);
 722                 /* goto end; */
 723                 }
 724
 725 #ifndef OPENSSL_NO_DH
 726         if (!no_dhe)
 727                 {
 728                 DH *dh=NULL;
 729
 730                 if (dhfile)
 731                         dh = load_dh_param(dhfile);
 732                 else if (s_cert_file)
 733                         dh = load_dh_param(s_cert_file);
 734
 735                 if (dh != NULL)
 736                         {
 737                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 738                         }
 739                 else
 740                         {
 741                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 742                         dh=get_dh512();
 743                         }
 744                 (void)BIO_flush(bio_s_out);
 745
 746                 SSL_CTX_set_tmp_dh(ctx,dh);
 747                 DH_free(dh);
 748                 }
 749 #endif
 750
 751         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 752                 goto end;
 753         if (s_dcert_file != NULL)
 754                 {
 755                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 756                         goto end;
 757                 }
 758
 759 #ifndef OPENSSL_NO_RSA
 760 #if 1
 761         if (!no_tmp_rsa)
 762                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 763 #else
 764         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 765                 {
 766                 RSA *rsa;
 767
 768                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 769                 BIO_flush(bio_s_out);
 770
 771                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 772
 773                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 774                         {
 775                         ERR_print_errors(bio_err);
 776                         goto end;
 777                         }
 778                 RSA_free(rsa);
 779                 BIO_printf(bio_s_out,"\n");
 780                 }
 781 #endif
 782 #endif
 783
 784         if (cipher != NULL)
 785                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 786                 BIO_printf(bio_err,"error setting cipher list\n");
 787                 ERR_print_errors(bio_err);
 788                 goto end;
 789         }
 790         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 791         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 792                 sizeof s_server_session_id_context);
 793
 794         if (CAfile != NULL)
 795             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 796
 797         BIO_printf(bio_s_out,"ACCEPT\n");
 798         if (www)
 799                 do_server(port,&accept_socket,www_body, context);
 800         else
 801                 do_server(port,&accept_socket,sv_body, context);
 802         print_stats(bio_s_out,ctx);
 803         ret=0;
 804 end:
 805         if (ctx != NULL) SSL_CTX_free(ctx);
 806         if (bio_s_out != NULL)
 807                 {
 808                 BIO_free(bio_s_out);
 809                 bio_s_out=NULL;
 810                 }
 811         EXIT(ret);
 812         }
 813
 814 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 815         {
 816         BIO_printf(bio,"%4ld items in the session cache\n",
 817                 SSL_CTX_sess_number(ssl_ctx));
 818         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 819                 SSL_CTX_sess_connect(ssl_ctx));
 820         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 821                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 822         BIO_printf(bio,"%4d client connects that finished\n",
 823                 SSL_CTX_sess_connect_good(ssl_ctx));
 824         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 825                 SSL_CTX_sess_accept(ssl_ctx));
 826         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 827                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 828         BIO_printf(bio,"%4d server accepts that finished\n",
 829                 SSL_CTX_sess_accept_good(ssl_ctx));
 830         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 831         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 832         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 833         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 834         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 835                 SSL_CTX_sess_cache_full(ssl_ctx),
 836                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 837         }
 838
 839 static int sv_body(char *hostname, int s, unsigned char *context)
 840         {
 841         char *buf=NULL;
 842         fd_set readfds;
 843         int ret=1,width;
 844         int k,i;
 845         unsigned long l;
 846         SSL *con=NULL;
 847         BIO *sbio;
 848 #ifdef OPENSSL_SYS_WINDOWS
 849         struct timeval tv;
 850 #endif
 851
 852         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
 853                 {
 854                 BIO_printf(bio_err,"out of memory\n");
 855                 goto err;
 856                 }
 857 #ifdef FIONBIO
 858         if (s_nbio)
 859                 {
 860                 unsigned long sl=1;
 861
 862                 if (!s_quiet)
 863                         BIO_printf(bio_err,"turning on non blocking io\n");
 864                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 865                         ERR_print_errors(bio_err);
 866                 }
 867 #endif
 868
 869         if (con == NULL) {
 870                 con=SSL_new(ctx);
 871 #ifndef OPENSSL_NO_KRB5
 872                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
 873                         {
 874                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
 875                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
 876                         }
 877 #endif  /* OPENSSL_NO_KRB5 */
 878                 if(context)
 879                       SSL_set_session_id_context(con, context,
 880                                                  strlen((char *)context));
 881         }
 882         SSL_clear(con);
 883
 884         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 885         if (s_nbio_test)
 886                 {
 887                 BIO *test;
 888
 889                 test=BIO_new(BIO_f_nbio_test());
 890                 sbio=BIO_push(test,sbio);
 891                 }
 892         SSL_set_bio(con,sbio,sbio);
 893         SSL_set_accept_state(con);
 894         /* SSL_set_fd(con,s); */
 895
 896         if (s_debug)
 897                 {
 898                 con->debug=1;
 899                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 900                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 901                 }
 902
 903         width=s+1;
 904         for (;;)
 905                 {
 906                 int read_from_terminal;
 907                 int read_from_sslcon;
 908
 909                 read_from_terminal = 0;
 910                 read_from_sslcon = SSL_pending(con);
 911
 912                 if (!read_from_sslcon)
 913                         {
 914                         FD_ZERO(&readfds);
 915 #ifndef OPENSSL_SYS_WINDOWS
 916                         FD_SET(fileno(stdin),&readfds);
 917 #endif
 918                         FD_SET(s,&readfds);
 919                         /* Note: under VMS with SOCKETSHR the second parameter is
 920                          * currently of type (int *) whereas under other systems
 921                          * it is (void *) if you don't have a cast it will choke
 922                          * the compiler: if you do have a cast then you can either
 923                          * go for (int *) or (void *).
 924                          */
 925 #ifdef OPENSSL_SYS_WINDOWS
 926                         /* Under Windows we can't select on stdin: only
 927                          * on sockets. As a workaround we timeout the select every
 928                          * second and check for any keypress. In a proper Windows
 929                          * application we wouldn't do this because it is inefficient.
 930                          */
 931                         tv.tv_sec = 1;
 932                         tv.tv_usec = 0;
 933                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
 934                         if((i < 0) || (!i && !_kbhit() ) )continue;
 935                         if(_kbhit())
 936                                 read_from_terminal = 1;
 937 #else
 938                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
 939                         if (i <= 0) continue;
 940                         if (FD_ISSET(fileno(stdin),&readfds))
 941                                 read_from_terminal = 1;
 942 #endif
 943                         if (FD_ISSET(s,&readfds))
 944                                 read_from_sslcon = 1;
 945                         }
 946                 if (read_from_terminal)
 947                         {
 948                         if (s_crlf)
 949                                 {
 950                                 int j, lf_num;
 951
 952                                 i=read(fileno(stdin), buf, bufsize/2);
 953                                 lf_num = 0;
 954                                 /* both loops are skipped when i <= 0 */
 955                                 for (j = 0; j < i; j++)
 956                                         if (buf[j] == '\n')
 957                                                 lf_num++;
 958                                 for (j = i-1; j >= 0; j--)
 959                                         {
 960                                         buf[j+lf_num] = buf[j];
 961                                         if (buf[j] == '\n')
 962                                                 {
 963                                                 lf_num--;
 964                                                 i++;
 965                                                 buf[j+lf_num] = '\r';
 966                                                 }
 967                                         }
 968                                 assert(lf_num == 0);
 969                                 }
 970                         else
 971                                 i=read(fileno(stdin),buf,bufsize);
 972                         if (!s_quiet)
 973                                 {
 974                                 if ((i <= 0) || (buf[0] == 'Q'))
 975                                         {
 976                                         BIO_printf(bio_s_out,"DONE\n");
 977                                         SHUTDOWN(s);
 978                                         close_accept_socket();
 979                                         ret= -11;
 980                                         goto err;
 981                                         }
 982                                 if ((i <= 0) || (buf[0] == 'q'))
 983                                         {
 984                                         BIO_printf(bio_s_out,"DONE\n");
 985                                         SHUTDOWN(s);
 986         /*                              close_accept_socket();
 987                                         ret= -11;*/
 988                                         goto err;
 989                                         }
 990                                 if ((buf[0] == 'r') &&
 991                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 992                                         {
 993                                         SSL_renegotiate(con);
 994                                         i=SSL_do_handshake(con);
 995                                         printf("SSL_do_handshake -> %d\n",i);
 996                                         i=0; /*13; */
 997                                         continue;
 998                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 999                                         }
1000                                 if ((buf[0] == 'R') &&
1001                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1002                                         {
1003                                         SSL_set_verify(con,
1004                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1005                                         SSL_renegotiate(con);
1006                                         i=SSL_do_handshake(con);
1007                                         printf("SSL_do_handshake -> %d\n",i);
1008                                         i=0; /* 13; */
1009                                         continue;
1010                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1011                                         }
1012                                 if (buf[0] == 'P')
1013                                         {
1014                                         static char *str="Lets print some clear text\n";
1015                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1016                                         }
1017                                 if (buf[0] == 'S')
1018                                         {
1019                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1020                                         }
1021                                 }
1022 #ifdef CHARSET_EBCDIC
1023                         ebcdic2ascii(buf,buf,i);
1024 #endif
1025                         l=k=0;
1026                         for (;;)
1027                                 {
1028                                 /* should do a select for the write */
1029 #ifdef RENEG
1030 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1031 #endif
1032                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1033                                 switch (SSL_get_error(con,k))
1034                                         {
1035                                 case SSL_ERROR_NONE:
1036                                         break;
1037                                 case SSL_ERROR_WANT_WRITE:
1038                                 case SSL_ERROR_WANT_READ:
1039                                 case SSL_ERROR_WANT_X509_LOOKUP:
1040                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1041                                         break;
1042                                 case SSL_ERROR_SYSCALL:
1043                                 case SSL_ERROR_SSL:
1044                                         BIO_printf(bio_s_out,"ERROR\n");
1045                                         ERR_print_errors(bio_err);
1046                                         ret=1;
1047                                         goto err;
1048                                         /* break; */
1049                                 case SSL_ERROR_ZERO_RETURN:
1050                                         BIO_printf(bio_s_out,"DONE\n");
1051                                         ret=1;
1052                                         goto err;
1053                                         }
1054                                 l+=k;
1055                                 i-=k;
1056                                 if (i <= 0) break;
1057                                 }
1058                         }
1059                 if (read_from_sslcon)
1060                         {
1061                         if (!SSL_is_init_finished(con))
1062                                 {
1063                                 i=init_ssl_connection(con);
1064
1065                                 if (i < 0)
1066                                         {
1067                                         ret=0;
1068                                         goto err;
1069                                         }
1070                                 else if (i == 0)
1071                                         {
1072                                         ret=1;
1073                                         goto err;
1074                                         }
1075                                 }
1076                         else
1077                                 {
1078 again:
1079                                 i=SSL_read(con,(char *)buf,bufsize);
1080                                 switch (SSL_get_error(con,i))
1081                                         {
1082                                 case SSL_ERROR_NONE:
1083 #ifdef CHARSET_EBCDIC
1084                                         ascii2ebcdic(buf,buf,i);
1085 #endif
1086                                         write(fileno(stdout),buf,
1087                                                 (unsigned int)i);
1088                                         if (SSL_pending(con)) goto again;
1089                                         break;
1090                                 case SSL_ERROR_WANT_WRITE:
1091                                 case SSL_ERROR_WANT_READ:
1092                                 case SSL_ERROR_WANT_X509_LOOKUP:
1093                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1094                                         break;
1095                                 case SSL_ERROR_SYSCALL:
1096                                 case SSL_ERROR_SSL:
1097                                         BIO_printf(bio_s_out,"ERROR\n");
1098                                         ERR_print_errors(bio_err);
1099                                         ret=1;
1100                                         goto err;
1101                                 case SSL_ERROR_ZERO_RETURN:
1102                                         BIO_printf(bio_s_out,"DONE\n");
1103                                         ret=1;
1104                                         goto err;
1105                                         }
1106                                 }
1107                         }
1108                 }
1109 err:
1110         BIO_printf(bio_s_out,"shutting down SSL\n");
1111 #if 1
1112         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1113 #else
1114         SSL_shutdown(con);
1115 #endif
1116         if (con != NULL) SSL_free(con);
1117         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1118         if (buf != NULL)
1119                 {
1120                 memset(buf,0,bufsize);
1121                 OPENSSL_free(buf);
1122                 }
1123         if (ret >= 0)
1124                 BIO_printf(bio_s_out,"ACCEPT\n");
1125         return(ret);
1126         }
1127
1128 static void close_accept_socket(void)
1129         {
1130         BIO_printf(bio_err,"shutdown accept socket\n");
1131         if (accept_socket >= 0)
1132                 {
1133                 SHUTDOWN2(accept_socket);
1134                 }
1135         }
1136
1137 static int init_ssl_connection(SSL *con)
1138         {
1139         int i;
1140         const char *str;
1141         X509 *peer;
1142         long verify_error;
1143         MS_STATIC char buf[BUFSIZ];
1144
1145         if ((i=SSL_accept(con)) <= 0)
1146                 {
1147                 if (BIO_sock_should_retry(i))
1148                         {
1149                         BIO_printf(bio_s_out,"DELAY\n");
1150                         return(1);
1151                         }
1152
1153                 BIO_printf(bio_err,"ERROR\n");
1154                 verify_error=SSL_get_verify_result(con);
1155                 if (verify_error != X509_V_OK)
1156                         {
1157                         BIO_printf(bio_err,"verify error:%s\n",
1158                                 X509_verify_cert_error_string(verify_error));
1159                         }
1160                 else
1161                         ERR_print_errors(bio_err);
1162                 return(0);
1163                 }
1164
1165         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1166
1167         peer=SSL_get_peer_certificate(con);
1168         if (peer != NULL)
1169                 {
1170                 BIO_printf(bio_s_out,"Client certificate\n");
1171                 PEM_write_bio_X509(bio_s_out,peer);
1172                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1173                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1174                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1175                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1176                 X509_free(peer);
1177                 }
1178
1179         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1180                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1181         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1182         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1183         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1184         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1185                 TLS1_FLAGS_TLS_PADDING_BUG)
1186                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1187
1188         return(1);
1189         }
1190
1191 #ifndef OPENSSL_NO_DH
1192 static DH *load_dh_param(char *dhfile)
1193         {
1194         DH *ret=NULL;
1195         BIO *bio;
1196
1197         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1198                 goto err;
1199         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1200 err:
1201         if (bio != NULL) BIO_free(bio);
1202         return(ret);
1203         }
1204 #endif
1205
1206 #if 0
1207 static int load_CA(SSL_CTX *ctx, char *file)
1208         {
1209         FILE *in;
1210         X509 *x=NULL;
1211
1212         if ((in=fopen(file,"r")) == NULL)
1213                 return(0);
1214
1215         for (;;)
1216                 {
1217                 if (PEM_read_X509(in,&x,NULL) == NULL)
1218                         break;
1219                 SSL_CTX_add_client_CA(ctx,x);
1220                 }
1221         if (x != NULL) X509_free(x);
1222         fclose(in);
1223         return(1);
1224         }
1225 #endif
1226
1227 static int www_body(char *hostname, int s, unsigned char *context)
1228         {
1229         char *buf=NULL;
1230         int ret=1;
1231         int i,j,k,blank,dot;
1232         struct stat st_buf;
1233         SSL *con;
1234         SSL_CIPHER *c;
1235         BIO *io,*ssl_bio,*sbio;
1236         long total_bytes;
1237
1238         buf=OPENSSL_malloc(bufsize);
1239         if (buf == NULL) return(0);
1240         io=BIO_new(BIO_f_buffer());
1241         ssl_bio=BIO_new(BIO_f_ssl());
1242         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1243
1244 #ifdef FIONBIO
1245         if (s_nbio)
1246                 {
1247                 unsigned long sl=1;
1248
1249                 if (!s_quiet)
1250                         BIO_printf(bio_err,"turning on non blocking io\n");
1251                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1252                         ERR_print_errors(bio_err);
1253                 }
1254 #endif
1255
1256         /* lets make the output buffer a reasonable size */
1257         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1258
1259         if ((con=SSL_new(ctx)) == NULL) goto err;
1260         if(context) SSL_set_session_id_context(con, context,
1261                                                strlen((char *)context));
1262
1263         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1264         if (s_nbio_test)
1265                 {
1266                 BIO *test;
1267
1268                 test=BIO_new(BIO_f_nbio_test());
1269                 sbio=BIO_push(test,sbio);
1270                 }
1271         SSL_set_bio(con,sbio,sbio);
1272         SSL_set_accept_state(con);
1273
1274         /* SSL_set_fd(con,s); */
1275         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1276         BIO_push(io,ssl_bio);
1277 #ifdef CHARSET_EBCDIC
1278         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1279 #endif
1280
1281         if (s_debug)
1282                 {
1283                 con->debug=1;
1284                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1285                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1286                 }
1287
1288         blank=0;
1289         for (;;)
1290                 {
1291                 if (hack)
1292                         {
1293                         i=SSL_accept(con);
1294
1295                         switch (SSL_get_error(con,i))
1296                                 {
1297                         case SSL_ERROR_NONE:
1298                                 break;
1299                         case SSL_ERROR_WANT_WRITE:
1300                         case SSL_ERROR_WANT_READ:
1301                         case SSL_ERROR_WANT_X509_LOOKUP:
1302                                 continue;
1303                         case SSL_ERROR_SYSCALL:
1304                         case SSL_ERROR_SSL:
1305                         case SSL_ERROR_ZERO_RETURN:
1306                                 ret=1;
1307                                 goto err;
1308                                 /* break; */
1309                                 }
1310
1311                         SSL_renegotiate(con);
1312                         SSL_write(con,NULL,0);
1313                         }
1314
1315                 i=BIO_gets(io,buf,bufsize-1);
1316                 if (i < 0) /* error */
1317                         {
1318                         if (!BIO_should_retry(io))
1319                                 {
1320                                 if (!s_quiet)
1321                                         ERR_print_errors(bio_err);
1322                                 goto err;
1323                                 }
1324                         else
1325                                 {
1326                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1327 #ifndef OPENSSL_SYS_MSDOS
1328                                 sleep(1);
1329 #endif
1330                                 continue;
1331                                 }
1332                         }
1333                 else if (i == 0) /* end of input */
1334                         {
1335                         ret=1;
1336                         goto end;
1337                         }
1338
1339                 /* else we have data */
1340                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1341                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1342                         {
1343                         char *p;
1344                         X509 *peer;
1345                         STACK_OF(SSL_CIPHER) *sk;
1346                         static char *space="                          ";
1347
1348                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1349                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1350                         BIO_puts(io,"<pre>\n");
1351 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1352                         BIO_puts(io,"\n");
1353                         for (i=0; i<local_argc; i++)
1354                                 {
1355                                 BIO_puts(io,local_argv[i]);
1356                                 BIO_write(io," ",1);
1357                                 }
1358                         BIO_puts(io,"\n");
1359
1360                         /* The following is evil and should not really
1361                          * be done */
1362                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1363                         sk=SSL_get_ciphers(con);
1364                         j=sk_SSL_CIPHER_num(sk);
1365                         for (i=0; i<j; i++)
1366                                 {
1367                                 c=sk_SSL_CIPHER_value(sk,i);
1368                                 BIO_printf(io,"%-11s:%-25s",
1369                                         SSL_CIPHER_get_version(c),
1370                                         SSL_CIPHER_get_name(c));
1371                                 if ((((i+1)%2) == 0) && (i+1 != j))
1372                                         BIO_puts(io,"\n");
1373                                 }
1374                         BIO_puts(io,"\n");
1375                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1376                         if (p != NULL)
1377                                 {
1378                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1379                                 j=i=0;
1380                                 while (*p)
1381                                         {
1382                                         if (*p == ':')
1383                                                 {
1384                                                 BIO_write(io,space,26-j);
1385                                                 i++;
1386                                                 j=0;
1387                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1388                                                 }
1389                                         else
1390                                                 {
1391                                                 BIO_write(io,p,1);
1392                                                 j++;
1393                                                 }
1394                                         p++;
1395                                         }
1396                                 BIO_puts(io,"\n");
1397                                 }
1398                         BIO_printf(io,((con->hit)
1399                                 ?"---\nReused, "
1400                                 :"---\nNew, "));
1401                         c=SSL_get_current_cipher(con);
1402                         BIO_printf(io,"%s, Cipher is %s\n",
1403                                 SSL_CIPHER_get_version(c),
1404                                 SSL_CIPHER_get_name(c));
1405                         SSL_SESSION_print(io,SSL_get_session(con));
1406                         BIO_printf(io,"---\n");
1407                         print_stats(io,SSL_get_SSL_CTX(con));
1408                         BIO_printf(io,"---\n");
1409                         peer=SSL_get_peer_certificate(con);
1410                         if (peer != NULL)
1411                                 {
1412                                 BIO_printf(io,"Client certificate\n");
1413                                 X509_print(io,peer);
1414                                 PEM_write_bio_X509(io,peer);
1415                                 }
1416                         else
1417                                 BIO_puts(io,"no client certificate available\n");
1418                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1419                         break;
1420                         }
1421                 else if ((www == 2 || www == 3)
1422                          && (strncmp("GET /",buf,5) == 0))
1423                         {
1424                         BIO *file;
1425                         char *p,*e;
1426                         static char *text="HTTP/1.0 200 ok\r\n"
1427                                 "Content-type: text/plain\r\n\r\n";
1428
1429                         /* skip the '/' */
1430                         p= &(buf[5]);
1431                         dot=0;
1432                         for (e=p; *e != '\0'; e++)
1433                                 {
1434                                 if (e[0] == ' ') break;
1435                                 if (    (e[0] == '.') &&
1436                                         (strncmp(&(e[-1]),"/../",4) == 0))
1437                                         dot=1;
1438                                 }
1439
1440
1441                         if (*e == '\0')
1442                                 {
1443                                 BIO_puts(io,text);
1444                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1445                                 break;
1446                                 }
1447                         *e='\0';
1448
1449                         if (dot)
1450                                 {
1451                                 BIO_puts(io,text);
1452                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1453                                 break;
1454                                 }
1455
1456                         if (*p == '/')
1457                                 {
1458                                 BIO_puts(io,text);
1459                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1460                                 break;
1461                                 }
1462
1463                         /* append if a directory lookup */
1464                         if (e[-1] == '/')
1465                                 strcat(p,"index.html");
1466
1467                         /* if a directory, do the index thang */
1468                         if (stat(p,&st_buf) < 0)
1469                                 {
1470                                 BIO_puts(io,text);
1471                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1472                                 ERR_print_errors(io);
1473                                 break;
1474                                 }
1475                         if (S_ISDIR(st_buf.st_mode))
1476                                 {
1477                                 strcat(p,"/index.html");
1478                                 }
1479
1480                         if ((file=BIO_new_file(p,"r")) == NULL)
1481                                 {
1482                                 BIO_puts(io,text);
1483                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1484                                 ERR_print_errors(io);
1485                                 break;
1486                                 }
1487
1488                         if (!s_quiet)
1489                                 BIO_printf(bio_err,"FILE:%s\n",p);
1490
1491                         if (www == 2)
1492                                 {
1493                                 i=strlen(p);
1494                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1495                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1496                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1497                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1498                                 else
1499                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1500                                 }
1501                         /* send the file */
1502                         total_bytes=0;
1503                         for (;;)
1504                                 {
1505                                 i=BIO_read(file,buf,bufsize);
1506                                 if (i <= 0) break;
1507
1508 #ifdef RENEG
1509                                 total_bytes+=i;
1510                                 fprintf(stderr,"%d\n",i);
1511                                 if (total_bytes > 3*1024)
1512                                         {
1513                                         total_bytes=0;
1514                                         fprintf(stderr,"RENEGOTIATE\n");
1515                                         SSL_renegotiate(con);
1516                                         }
1517 #endif
1518
1519                                 for (j=0; j<i; )
1520                                         {
1521 #ifdef RENEG
1522 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1523 #endif
1524                                         k=BIO_write(io,&(buf[j]),i-j);
1525                                         if (k <= 0)
1526                                                 {
1527                                                 if (!BIO_should_retry(io))
1528                                                         goto write_error;
1529                                                 else
1530                                                         {
1531                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1532                                                         }
1533                                                 }
1534                                         else
1535                                                 {
1536                                                 j+=k;
1537                                                 }
1538                                         }
1539                                 }
1540 write_error:
1541                         BIO_free(file);
1542                         break;
1543                         }
1544                 }
1545
1546         for (;;)
1547                 {
1548                 i=(int)BIO_flush(io);
1549                 if (i <= 0)
1550                         {
1551                         if (!BIO_should_retry(io))
1552                                 break;
1553                         }
1554                 else
1555                         break;
1556                 }
1557 end:
1558 #if 1
1559         /* make sure we re-use sessions */
1560         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1561 #else
1562         /* This kills performance */
1563 /*      SSL_shutdown(con); A shutdown gets sent in the
1564  *      BIO_free_all(io) procession */
1565 #endif
1566
1567 err:
1568
1569         if (ret >= 0)
1570                 BIO_printf(bio_s_out,"ACCEPT\n");
1571
1572         if (buf != NULL) OPENSSL_free(buf);
1573         if (io != NULL) BIO_free_all(io);
1574 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1575         return(ret);
1576         }
1577
1578 #ifndef OPENSSL_NO_RSA
1579 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1580         {
1581         static RSA *rsa_tmp=NULL;
1582
1583         if (rsa_tmp == NULL)
1584                 {
1585                 if (!s_quiet)
1586                         {
1587                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1588                         (void)BIO_flush(bio_err);
1589                         }
1590                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1591                 if (!s_quiet)
1592                         {
1593                         BIO_printf(bio_err,"\n");
1594                         (void)BIO_flush(bio_err);
1595                         }
1596                 }
1597         return(rsa_tmp);
1598         }
1599 #endif
1600
1601 #define MAX_SESSION_ID_ATTEMPTS 10
1602 static int generate_session_id(const SSL *ssl, unsigned char *id,
1603                                 unsigned int *id_len)
1604         {
1605         unsigned int count = 0;
1606         do      {
1607                 RAND_pseudo_bytes(id, *id_len);
1608                 /* Prefix the session_id with the required prefix. NB: If our
1609                  * prefix is too long, clip it - but there will be worse effects
1610                  * anyway, eg. the server could only possibly create 1 session
1611                  * ID (ie. the prefix!) so all future session negotiations will
1612                  * fail due to conflicts. */
1613                 memcpy(id, session_id_prefix,
1614                         (strlen(session_id_prefix) < *id_len) ?
1615                         strlen(session_id_prefix) : *id_len);
1616                 }
1617         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
1618                 (++count < MAX_SESSION_ID_ATTEMPTS));
1619         if(count >= MAX_SESSION_ID_ATTEMPTS)
1620                 return 0;
1621         return 1;
1622         }