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