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 #ifdef NO_STDIO
  66 #define APPS_WIN16
  67 #endif
  68
  69 /* With IPv6, it looks like Digital has mixed up the proper order of
  70    recursive header file inclusion, resulting in the compiler complaining
  71    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
  72    is needed to have fileno() declared correctly...  So let's define u_int */
  73 #if defined(VMS) && defined(__DECC) && !defined(__U_INT)
  74 #define __U_INT
  75 typedef unsigned int u_int;
  76 #endif
  77
  78 #include <openssl/lhash.h>
  79 #include <openssl/bn.h>
  80 #define USE_SOCKETS
  81 #include "apps.h"
  82 #include <openssl/err.h>
  83 #include <openssl/pem.h>
  84 #include <openssl/x509.h>
  85 #include <openssl/ssl.h>
  86 #include <openssl/engine.h>
  87 #include "s_apps.h"
  88
  89 #ifdef WINDOWS
  90 #include <conio.h>
  91 #endif
  92
  93 #if (defined(VMS) && __VMS_VER < 70000000)
  94 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
  95 #undef FIONBIO
  96 #endif
  97
  98 #ifndef NO_RSA
  99 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 100 #endif
 101 static int sv_body(char *hostname, int s, unsigned char *context);
 102 static int www_body(char *hostname, int s, unsigned char *context);
 103 static void close_accept_socket(void );
 104 static void sv_usage(void);
 105 static int init_ssl_connection(SSL *s);
 106 static void print_stats(BIO *bp,SSL_CTX *ctx);
 107 #ifndef NO_DH
 108 static DH *load_dh_param(char *dhfile);
 109 static DH *get_dh512(void);
 110 #endif
 111 #ifdef MONOLITH
 112 static void s_server_init(void);
 113 #endif
 114
 115 #ifndef S_ISDIR
 116 # if defined(_S_IFMT) && defined(_S_IFDIR)
 117 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 118 # else
 119 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 120 # endif
 121 #endif
 122
 123 #ifndef NO_DH
 124 static unsigned char dh512_p[]={
 125         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 126         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 127         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 128         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 129         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 130         0x47,0x74,0xE8,0x33,
 131         };
 132 static unsigned char dh512_g[]={
 133         0x02,
 134         };
 135
 136 static DH *get_dh512(void)
 137         {
 138         DH *dh=NULL;
 139
 140         if ((dh=DH_new()) == NULL) return(NULL);
 141         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 142         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 143         if ((dh->p == NULL) || (dh->g == NULL))
 144                 return(NULL);
 145         return(dh);
 146         }
 147 #endif
 148
 149 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 150
 151 #undef BUFSIZZ
 152 #define BUFSIZZ 16*1024
 153 static int bufsize=BUFSIZZ;
 154 static int accept_socket= -1;
 155
 156 #define TEST_CERT       "server.pem"
 157 #undef PROG
 158 #define PROG            s_server_main
 159
 160 extern int verify_depth;
 161
 162 static char *cipher=NULL;
 163 static int s_server_verify=SSL_VERIFY_NONE;
 164 static int s_server_session_id_context = 1; /* anything will do */
 165 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 166 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 167 #ifdef FIONBIO
 168 static int s_nbio=0;
 169 #endif
 170 static int s_nbio_test=0;
 171 int s_crlf=0;
 172 static SSL_CTX *ctx=NULL;
 173 static int www=0;
 174
 175 static BIO *bio_s_out=NULL;
 176 static int s_debug=0;
 177 static int s_quiet=0;
 178
 179 static int hack=0;
 180 static char *engine_id=NULL;
 181
 182 #ifdef MONOLITH
 183 static void s_server_init(void)
 184         {
 185         accept_socket=-1;
 186         cipher=NULL;
 187         s_server_verify=SSL_VERIFY_NONE;
 188         s_dcert_file=NULL;
 189         s_dkey_file=NULL;
 190         s_cert_file=TEST_CERT;
 191         s_key_file=NULL;
 192 #ifdef FIONBIO
 193         s_nbio=0;
 194 #endif
 195         s_nbio_test=0;
 196         ctx=NULL;
 197         www=0;
 198
 199         bio_s_out=NULL;
 200         s_debug=0;
 201         s_quiet=0;
 202         hack=0;
 203         engine_id=NULL;
 204         }
 205 #endif
 206
 207 static void sv_usage(void)
 208         {
 209         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 210         BIO_printf(bio_err,"\n");
 211         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 212         BIO_printf(bio_err," -context arg  - set session ID context\n");
 213         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 214         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 215         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 216         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 217         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
 218         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 219         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 220         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 221         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 222         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 223 #ifdef FIONBIO
 224         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 225 #endif
 226         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 227         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 228         BIO_printf(bio_err," -debug        - Print more output\n");
 229         BIO_printf(bio_err," -state        - Print the SSL states\n");
 230         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 231         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 232         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 233         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 234         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 235         BIO_printf(bio_err," -quiet        - No server output\n");
 236         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 237         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 238         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 239         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 240         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 241         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 242         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 243 #ifndef NO_DH
 244         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 245 #endif
 246         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 247         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 248         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 249         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 250         }
 251
 252 static int local_argc=0;
 253 static char **local_argv;
 254
 255 #ifdef CHARSET_EBCDIC
 256 static int ebcdic_new(BIO *bi);
 257 static int ebcdic_free(BIO *a);
 258 static int ebcdic_read(BIO *b, char *out, int outl);
 259 static int ebcdic_write(BIO *b, char *in, int inl);
 260 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
 261 static int ebcdic_gets(BIO *bp, char *buf, int size);
 262 static int ebcdic_puts(BIO *bp, char *str);
 263
 264 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 265 static BIO_METHOD methods_ebcdic=
 266         {
 267         BIO_TYPE_EBCDIC_FILTER,
 268         "EBCDIC/ASCII filter",
 269         ebcdic_write,
 270         ebcdic_read,
 271         ebcdic_puts,
 272         ebcdic_gets,
 273         ebcdic_ctrl,
 274         ebcdic_new,
 275         ebcdic_free,
 276         };
 277
 278 typedef struct
 279 {
 280         size_t  alloced;
 281         char    buff[1];
 282 } EBCDIC_OUTBUFF;
 283
 284 BIO_METHOD *BIO_f_ebcdic_filter()
 285 {
 286         return(&methods_ebcdic);
 287 }
 288
 289 static int ebcdic_new(BIO *bi)
 290 {
 291         EBCDIC_OUTBUFF *wbuf;
 292
 293         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 294         wbuf->alloced = 1024;
 295         wbuf->buff[0] = '\0';
 296
 297         bi->ptr=(char *)wbuf;
 298         bi->init=1;
 299         bi->flags=0;
 300         return(1);
 301 }
 302
 303 static int ebcdic_free(BIO *a)
 304 {
 305         if (a == NULL) return(0);
 306         if (a->ptr != NULL)
 307                 OPENSSL_free(a->ptr);
 308         a->ptr=NULL;
 309         a->init=0;
 310         a->flags=0;
 311         return(1);
 312 }
 313
 314 static int ebcdic_read(BIO *b, char *out, int outl)
 315 {
 316         int ret=0;
 317
 318         if (out == NULL || outl == 0) return(0);
 319         if (b->next_bio == NULL) return(0);
 320
 321         ret=BIO_read(b->next_bio,out,outl);
 322         if (ret > 0)
 323                 ascii2ebcdic(out,out,ret);
 324         return(ret);
 325 }
 326
 327 static int ebcdic_write(BIO *b, char *in, int inl)
 328 {
 329         EBCDIC_OUTBUFF *wbuf;
 330         int ret=0;
 331         int num;
 332         unsigned char n;
 333
 334         if ((in == NULL) || (inl <= 0)) return(0);
 335         if (b->next_bio == NULL) return(0);
 336
 337         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 338
 339         if (inl > (num = wbuf->alloced))
 340         {
 341                 num = num + num;  /* double the size */
 342                 if (num < inl)
 343                         num = inl;
 344                 OPENSSL_free(wbuf);
 345                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 346
 347                 wbuf->alloced = num;
 348                 wbuf->buff[0] = '\0';
 349
 350                 b->ptr=(char *)wbuf;
 351         }
 352
 353         ebcdic2ascii(wbuf->buff, in, inl);
 354
 355         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 356
 357         return(ret);
 358 }
 359
 360 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
 361 {
 362         long ret;
 363
 364         if (b->next_bio == NULL) return(0);
 365         switch (cmd)
 366         {
 367         case BIO_CTRL_DUP:
 368                 ret=0L;
 369                 break;
 370         default:
 371                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 372                 break;
 373         }
 374         return(ret);
 375 }
 376
 377 static int ebcdic_gets(BIO *bp, char *buf, int size)
 378 {
 379         int i, ret;
 380         if (bp->next_bio == NULL) return(0);
 381 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 382         for (i=0; i<size-1; ++i)
 383         {
 384                 ret = ebcdic_read(bp,&buf[i],1);
 385                 if (ret <= 0)
 386                         break;
 387                 else if (buf[i] == '\n')
 388                 {
 389                         ++i;
 390                         break;
 391                 }
 392         }
 393         if (i < size)
 394                 buf[i] = '\0';
 395         return (ret < 0 && i == 0) ? ret : i;
 396 }
 397
 398 static int ebcdic_puts(BIO *bp, char *str)
 399 {
 400         if (bp->next_bio == NULL) return(0);
 401         return ebcdic_write(bp, str, strlen(str));
 402 }
 403 #endif
 404
 405 int MAIN(int, char **);
 406
 407 int MAIN(int argc, char *argv[])
 408         {
 409         short port=PORT;
 410         char *CApath=NULL,*CAfile=NULL;
 411         char *context = NULL;
 412         char *dhfile = NULL;
 413         int badop=0,bugs=0;
 414         int ret=1;
 415         int off=0;
 416         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 417         int state=0;
 418         SSL_METHOD *meth=NULL;
 419         ENGINE *e=NULL;
 420
 421 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 422         meth=SSLv23_server_method();
 423 #elif !defined(NO_SSL3)
 424         meth=SSLv3_server_method();
 425 #elif !defined(NO_SSL2)
 426         meth=SSLv2_server_method();
 427 #endif
 428
 429         local_argc=argc;
 430         local_argv=argv;
 431
 432         apps_startup();
 433 #ifdef MONOLITH
 434         s_server_init();
 435 #endif
 436
 437         if (bio_err == NULL)
 438                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 439
 440         verify_depth=0;
 441 #ifdef FIONBIO
 442         s_nbio=0;
 443 #endif
 444         s_nbio_test=0;
 445
 446         argc--;
 447         argv++;
 448
 449         while (argc >= 1)
 450                 {
 451                 if      ((strcmp(*argv,"-port") == 0) ||
 452                          (strcmp(*argv,"-accept") == 0))
 453                         {
 454                         if (--argc < 1) goto bad;
 455                         if (!extract_port(*(++argv),&port))
 456                                 goto bad;
 457                         }
 458                 else if (strcmp(*argv,"-verify") == 0)
 459                         {
 460                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 461                         if (--argc < 1) goto bad;
 462                         verify_depth=atoi(*(++argv));
 463                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 464                         }
 465                 else if (strcmp(*argv,"-Verify") == 0)
 466                         {
 467                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 468                                 SSL_VERIFY_CLIENT_ONCE;
 469                         if (--argc < 1) goto bad;
 470                         verify_depth=atoi(*(++argv));
 471                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 472                         }
 473                 else if (strcmp(*argv,"-context") == 0)
 474                         {
 475                         if (--argc < 1) goto bad;
 476                         context= *(++argv);
 477                         }
 478                 else if (strcmp(*argv,"-cert") == 0)
 479                         {
 480                         if (--argc < 1) goto bad;
 481                         s_cert_file= *(++argv);
 482                         }
 483                 else if (strcmp(*argv,"-key") == 0)
 484                         {
 485                         if (--argc < 1) goto bad;
 486                         s_key_file= *(++argv);
 487                         }
 488                 else if (strcmp(*argv,"-dhparam") == 0)
 489                         {
 490                         if (--argc < 1) goto bad;
 491                         dhfile = *(++argv);
 492                         }
 493                 else if (strcmp(*argv,"-dcert") == 0)
 494                         {
 495                         if (--argc < 1) goto bad;
 496                         s_dcert_file= *(++argv);
 497                         }
 498                 else if (strcmp(*argv,"-dkey") == 0)
 499                         {
 500                         if (--argc < 1) goto bad;
 501                         s_dkey_file= *(++argv);
 502                         }
 503                 else if (strcmp(*argv,"-nocert") == 0)
 504                         {
 505                         nocert=1;
 506                         }
 507                 else if (strcmp(*argv,"-CApath") == 0)
 508                         {
 509                         if (--argc < 1) goto bad;
 510                         CApath= *(++argv);
 511                         }
 512                 else if (strcmp(*argv,"-serverpref") == 0)
 513                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
 514                 else if (strcmp(*argv,"-cipher") == 0)
 515                         {
 516                         if (--argc < 1) goto bad;
 517                         cipher= *(++argv);
 518                         }
 519                 else if (strcmp(*argv,"-CAfile") == 0)
 520                         {
 521                         if (--argc < 1) goto bad;
 522                         CAfile= *(++argv);
 523                         }
 524 #ifdef FIONBIO
 525                 else if (strcmp(*argv,"-nbio") == 0)
 526                         { s_nbio=1; }
 527 #endif
 528                 else if (strcmp(*argv,"-nbio_test") == 0)
 529                         {
 530 #ifdef FIONBIO
 531                         s_nbio=1;
 532 #endif
 533                         s_nbio_test=1;
 534                         }
 535                 else if (strcmp(*argv,"-debug") == 0)
 536                         { s_debug=1; }
 537                 else if (strcmp(*argv,"-hack") == 0)
 538                         { hack=1; }
 539                 else if (strcmp(*argv,"-state") == 0)
 540                         { state=1; }
 541                 else if (strcmp(*argv,"-crlf") == 0)
 542                         { s_crlf=1; }
 543                 else if (strcmp(*argv,"-quiet") == 0)
 544                         { s_quiet=1; }
 545                 else if (strcmp(*argv,"-bugs") == 0)
 546                         { bugs=1; }
 547                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 548                         { no_tmp_rsa=1; }
 549                 else if (strcmp(*argv,"-no_dhe") == 0)
 550                         { no_dhe=1; }
 551                 else if (strcmp(*argv,"-www") == 0)
 552                         { www=1; }
 553                 else if (strcmp(*argv,"-WWW") == 0)
 554                         { www=2; }
 555                 else if (strcmp(*argv,"-no_ssl2") == 0)
 556                         { off|=SSL_OP_NO_SSLv2; }
 557                 else if (strcmp(*argv,"-no_ssl3") == 0)
 558                         { off|=SSL_OP_NO_SSLv3; }
 559                 else if (strcmp(*argv,"-no_tls1") == 0)
 560                         { off|=SSL_OP_NO_TLSv1; }
 561 #ifndef NO_SSL2
 562                 else if (strcmp(*argv,"-ssl2") == 0)
 563                         { meth=SSLv2_server_method(); }
 564 #endif
 565 #ifndef NO_SSL3
 566                 else if (strcmp(*argv,"-ssl3") == 0)
 567                         { meth=SSLv3_server_method(); }
 568 #endif
 569 #ifndef NO_TLS1
 570                 else if (strcmp(*argv,"-tls1") == 0)
 571                         { meth=TLSv1_server_method(); }
 572 #endif
 573                 else if (strcmp(*argv,"-engine") == 0)
 574                         {
 575                         if (--argc < 1) goto bad;
 576                         engine_id= *(++argv);
 577                         }
 578                 else
 579                         {
 580                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 581                         badop=1;
 582                         break;
 583                         }
 584                 argc--;
 585                 argv++;
 586                 }
 587         if (badop)
 588                 {
 589 bad:
 590                 sv_usage();
 591                 goto end;
 592                 }
 593
 594         app_RAND_load_file(NULL, bio_err, 0);
 595
 596         if (bio_s_out == NULL)
 597                 {
 598                 if (s_quiet && !s_debug)
 599                         {
 600                         bio_s_out=BIO_new(BIO_s_null());
 601                         }
 602                 else
 603                         {
 604                         if (bio_s_out == NULL)
 605                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 606                         }
 607                 }
 608
 609 #if !defined(NO_RSA) || !defined(NO_DSA)
 610         if (nocert)
 611 #endif
 612                 {
 613                 s_cert_file=NULL;
 614                 s_key_file=NULL;
 615                 s_dcert_file=NULL;
 616                 s_dkey_file=NULL;
 617                 }
 618
 619         SSL_load_error_strings();
 620         OpenSSL_add_ssl_algorithms();
 621
 622         if (engine_id != NULL)
 623                 {
 624                 if((e = ENGINE_by_id(engine_id)) == NULL)
 625                         {
 626                         BIO_printf(bio_err,"invalid engine\n");
 627                         ERR_print_errors(bio_err);
 628                         goto end;
 629                         }
 630                 if (s_debug)
 631                         {
 632                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
 633                                 0, bio_err, 0);
 634                         }
 635                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
 636                         {
 637                         BIO_printf(bio_err,"can't use that engine\n");
 638                         ERR_print_errors(bio_err);
 639                         goto end;
 640                         }
 641                 BIO_printf(bio_err,"engine \"%s\" set.\n", engine_id);
 642                 ENGINE_free(e);
 643                 }
 644
 645         ctx=SSL_CTX_new(meth);
 646         if (ctx == NULL)
 647                 {
 648                 ERR_print_errors(bio_err);
 649                 goto end;
 650                 }
 651
 652         SSL_CTX_set_quiet_shutdown(ctx,1);
 653         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 654         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 655         SSL_CTX_set_options(ctx,off);
 656         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 657
 658         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 659
 660         SSL_CTX_sess_set_cache_size(ctx,128);
 661
 662 #if 0
 663         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 664 #endif
 665
 666 #if 0
 667         if (s_cert_file == NULL)
 668                 {
 669                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 670                 goto end;
 671                 }
 672 #endif
 673
 674         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 675                 (!SSL_CTX_set_default_verify_paths(ctx)))
 676                 {
 677                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 678                 ERR_print_errors(bio_err);
 679                 /* goto end; */
 680                 }
 681
 682 #ifndef NO_DH
 683         if (!no_dhe)
 684                 {
 685                 DH *dh=NULL;
 686
 687                 if (dhfile)
 688                         dh = load_dh_param(dhfile);
 689                 else if (s_cert_file)
 690                         dh = load_dh_param(s_cert_file);
 691
 692                 if (dh != NULL)
 693                         {
 694                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 695                         }
 696                 else
 697                         {
 698                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 699                         dh=get_dh512();
 700                         }
 701                 (void)BIO_flush(bio_s_out);
 702
 703                 SSL_CTX_set_tmp_dh(ctx,dh);
 704                 DH_free(dh);
 705                 }
 706 #endif
 707
 708         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 709                 goto end;
 710         if (s_dcert_file != NULL)
 711                 {
 712                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 713                         goto end;
 714                 }
 715
 716 #ifndef NO_RSA
 717 #if 1
 718         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 719 #else
 720         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 721                 {
 722                 RSA *rsa;
 723
 724                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 725                 BIO_flush(bio_s_out);
 726
 727                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 728
 729                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 730                         {
 731                         ERR_print_errors(bio_err);
 732                         goto end;
 733                         }
 734                 RSA_free(rsa);
 735                 BIO_printf(bio_s_out,"\n");
 736                 }
 737 #endif
 738 #endif
 739
 740         if (cipher != NULL)
 741                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 742                 BIO_printf(bio_err,"error setting cipher list\n");
 743                 ERR_print_errors(bio_err);
 744                 goto end;
 745         }
 746         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 747         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 748                 sizeof s_server_session_id_context);
 749
 750         if (CAfile != NULL)
 751             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 752
 753         BIO_printf(bio_s_out,"ACCEPT\n");
 754         if (www)
 755                 do_server(port,&accept_socket,www_body, context);
 756         else
 757                 do_server(port,&accept_socket,sv_body, context);
 758         print_stats(bio_s_out,ctx);
 759         ret=0;
 760 end:
 761         if (ctx != NULL) SSL_CTX_free(ctx);
 762         if (bio_s_out != NULL)
 763                 {
 764                 BIO_free(bio_s_out);
 765                 bio_s_out=NULL;
 766                 }
 767         EXIT(ret);
 768         }
 769
 770 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 771         {
 772         BIO_printf(bio,"%4ld items in the session cache\n",
 773                 SSL_CTX_sess_number(ssl_ctx));
 774         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 775                 SSL_CTX_sess_connect(ssl_ctx));
 776         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 777                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 778         BIO_printf(bio,"%4d client connects that finished\n",
 779                 SSL_CTX_sess_connect_good(ssl_ctx));
 780         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 781                 SSL_CTX_sess_accept(ssl_ctx));
 782         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 783                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 784         BIO_printf(bio,"%4d server accepts that finished\n",
 785                 SSL_CTX_sess_accept_good(ssl_ctx));
 786         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 787         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 788         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 789         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 790         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 791                 SSL_CTX_sess_cache_full(ssl_ctx),
 792                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 793         }
 794
 795 static int sv_body(char *hostname, int s, unsigned char *context)
 796         {
 797         char *buf=NULL;
 798         fd_set readfds;
 799         int ret=1,width;
 800         int k,i;
 801         unsigned long l;
 802         SSL *con=NULL;
 803         BIO *sbio;
 804 #ifdef WINDOWS
 805         struct timeval tv;
 806 #endif
 807
 808         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
 809                 {
 810                 BIO_printf(bio_err,"out of memory\n");
 811                 goto err;
 812                 }
 813 #ifdef FIONBIO
 814         if (s_nbio)
 815                 {
 816                 unsigned long sl=1;
 817
 818                 if (!s_quiet)
 819                         BIO_printf(bio_err,"turning on non blocking io\n");
 820                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 821                         ERR_print_errors(bio_err);
 822                 }
 823 #endif
 824
 825         if (con == NULL) {
 826                 con=SSL_new(ctx);
 827 #ifndef NO_KRB5
 828                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
 829                         {
 830                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
 831                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
 832                         }
 833 #endif  /* NO_KRB5 */
 834                 if(context)
 835                       SSL_set_session_id_context(con, context,
 836                                                  strlen((char *)context));
 837         }
 838         SSL_clear(con);
 839
 840         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 841         if (s_nbio_test)
 842                 {
 843                 BIO *test;
 844
 845                 test=BIO_new(BIO_f_nbio_test());
 846                 sbio=BIO_push(test,sbio);
 847                 }
 848         SSL_set_bio(con,sbio,sbio);
 849         SSL_set_accept_state(con);
 850         /* SSL_set_fd(con,s); */
 851
 852         if (s_debug)
 853                 {
 854                 con->debug=1;
 855                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 856                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 857                 }
 858
 859         width=s+1;
 860         for (;;)
 861                 {
 862                 int read_from_terminal;
 863                 int read_from_sslcon;
 864
 865                 read_from_terminal = 0;
 866                 read_from_sslcon = SSL_pending(con);
 867
 868                 if (!read_from_sslcon)
 869                         {
 870                         FD_ZERO(&readfds);
 871 #ifndef WINDOWS
 872                         FD_SET(fileno(stdin),&readfds);
 873 #endif
 874                         FD_SET(s,&readfds);
 875                         /* Note: under VMS with SOCKETSHR the second parameter is
 876                          * currently of type (int *) whereas under other systems
 877                          * it is (void *) if you don't have a cast it will choke
 878                          * the compiler: if you do have a cast then you can either
 879                          * go for (int *) or (void *).
 880                          */
 881 #ifdef WINDOWS
 882                         /* Under Windows we can't select on stdin: only
 883                          * on sockets. As a workaround we timeout the select every
 884                          * second and check for any keypress. In a proper Windows
 885                          * application we wouldn't do this because it is inefficient.
 886                          */
 887                         tv.tv_sec = 1;
 888                         tv.tv_usec = 0;
 889                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
 890                         if((i < 0) || (!i && !_kbhit() ) )continue;
 891                         if(_kbhit())
 892                                 read_from_terminal = 1;
 893 #else
 894                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
 895                         if (i <= 0) continue;
 896                         if (FD_ISSET(fileno(stdin),&readfds))
 897                                 read_from_terminal = 1;
 898 #endif
 899                         if (FD_ISSET(s,&readfds))
 900                                 read_from_sslcon = 1;
 901                         }
 902                 if (read_from_terminal)
 903                         {
 904                         if (s_crlf)
 905                                 {
 906                                 int j, lf_num;
 907
 908                                 i=read(fileno(stdin), buf, bufsize/2);
 909                                 lf_num = 0;
 910                                 /* both loops are skipped when i <= 0 */
 911                                 for (j = 0; j < i; j++)
 912                                         if (buf[j] == '\n')
 913                                                 lf_num++;
 914                                 for (j = i-1; j >= 0; j--)
 915                                         {
 916                                         buf[j+lf_num] = buf[j];
 917                                         if (buf[j] == '\n')
 918                                                 {
 919                                                 lf_num--;
 920                                                 i++;
 921                                                 buf[j+lf_num] = '\r';
 922                                                 }
 923                                         }
 924                                 assert(lf_num == 0);
 925                                 }
 926                         else
 927                                 i=read(fileno(stdin),buf,bufsize);
 928                         if (!s_quiet)
 929                                 {
 930                                 if ((i <= 0) || (buf[0] == 'Q'))
 931                                         {
 932                                         BIO_printf(bio_s_out,"DONE\n");
 933                                         SHUTDOWN(s);
 934                                         close_accept_socket();
 935                                         ret= -11;
 936                                         goto err;
 937                                         }
 938                                 if ((i <= 0) || (buf[0] == 'q'))
 939                                         {
 940                                         BIO_printf(bio_s_out,"DONE\n");
 941                                         SHUTDOWN(s);
 942         /*                              close_accept_socket();
 943                                         ret= -11;*/
 944                                         goto err;
 945                                         }
 946                                 if ((buf[0] == 'r') &&
 947                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 948                                         {
 949                                         SSL_renegotiate(con);
 950                                         i=SSL_do_handshake(con);
 951                                         printf("SSL_do_handshake -> %d\n",i);
 952                                         i=0; /*13; */
 953                                         continue;
 954                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 955                                         }
 956                                 if ((buf[0] == 'R') &&
 957                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 958                                         {
 959                                         SSL_set_verify(con,
 960                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
 961                                         SSL_renegotiate(con);
 962                                         i=SSL_do_handshake(con);
 963                                         printf("SSL_do_handshake -> %d\n",i);
 964                                         i=0; /* 13; */
 965                                         continue;
 966                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
 967                                         }
 968                                 if (buf[0] == 'P')
 969                                         {
 970                                         static char *str="Lets print some clear text\n";
 971                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
 972                                         }
 973                                 if (buf[0] == 'S')
 974                                         {
 975                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
 976                                         }
 977                                 }
 978 #ifdef CHARSET_EBCDIC
 979                         ebcdic2ascii(buf,buf,i);
 980 #endif
 981                         l=k=0;
 982                         for (;;)
 983                                 {
 984                                 /* should do a select for the write */
 985 #ifdef RENEG
 986 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
 987 #endif
 988                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
 989                                 switch (SSL_get_error(con,k))
 990                                         {
 991                                 case SSL_ERROR_NONE:
 992                                         break;
 993                                 case SSL_ERROR_WANT_WRITE:
 994                                 case SSL_ERROR_WANT_READ:
 995                                 case SSL_ERROR_WANT_X509_LOOKUP:
 996                                         BIO_printf(bio_s_out,"Write BLOCK\n");
 997                                         break;
 998                                 case SSL_ERROR_SYSCALL:
 999                                 case SSL_ERROR_SSL:
1000                                         BIO_printf(bio_s_out,"ERROR\n");
1001                                         ERR_print_errors(bio_err);
1002                                         ret=1;
1003                                         goto err;
1004                                         /* break; */
1005                                 case SSL_ERROR_ZERO_RETURN:
1006                                         BIO_printf(bio_s_out,"DONE\n");
1007                                         ret=1;
1008                                         goto err;
1009                                         }
1010                                 l+=k;
1011                                 i-=k;
1012                                 if (i <= 0) break;
1013                                 }
1014                         }
1015                 if (read_from_sslcon)
1016                         {
1017                         if (!SSL_is_init_finished(con))
1018                                 {
1019                                 i=init_ssl_connection(con);
1020
1021                                 if (i < 0)
1022                                         {
1023                                         ret=0;
1024                                         goto err;
1025                                         }
1026                                 else if (i == 0)
1027                                         {
1028                                         ret=1;
1029                                         goto err;
1030                                         }
1031                                 }
1032                         else
1033                                 {
1034 again:
1035                                 i=SSL_read(con,(char *)buf,bufsize);
1036                                 switch (SSL_get_error(con,i))
1037                                         {
1038                                 case SSL_ERROR_NONE:
1039 #ifdef CHARSET_EBCDIC
1040                                         ascii2ebcdic(buf,buf,i);
1041 #endif
1042                                         write(fileno(stdout),buf,
1043                                                 (unsigned int)i);
1044                                         if (SSL_pending(con)) goto again;
1045                                         break;
1046                                 case SSL_ERROR_WANT_WRITE:
1047                                 case SSL_ERROR_WANT_READ:
1048                                 case SSL_ERROR_WANT_X509_LOOKUP:
1049                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1050                                         break;
1051                                 case SSL_ERROR_SYSCALL:
1052                                 case SSL_ERROR_SSL:
1053                                         BIO_printf(bio_s_out,"ERROR\n");
1054                                         ERR_print_errors(bio_err);
1055                                         ret=1;
1056                                         goto err;
1057                                 case SSL_ERROR_ZERO_RETURN:
1058                                         BIO_printf(bio_s_out,"DONE\n");
1059                                         ret=1;
1060                                         goto err;
1061                                         }
1062                                 }
1063                         }
1064                 }
1065 err:
1066         BIO_printf(bio_s_out,"shutting down SSL\n");
1067 #if 1
1068         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1069 #else
1070         SSL_shutdown(con);
1071 #endif
1072         if (con != NULL) SSL_free(con);
1073         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1074         if (buf != NULL)
1075                 {
1076                 memset(buf,0,bufsize);
1077                 OPENSSL_free(buf);
1078                 }
1079         if (ret >= 0)
1080                 BIO_printf(bio_s_out,"ACCEPT\n");
1081         return(ret);
1082         }
1083
1084 static void close_accept_socket(void)
1085         {
1086         BIO_printf(bio_err,"shutdown accept socket\n");
1087         if (accept_socket >= 0)
1088                 {
1089                 SHUTDOWN2(accept_socket);
1090                 }
1091         }
1092
1093 static int init_ssl_connection(SSL *con)
1094         {
1095         int i;
1096         const char *str;
1097         X509 *peer;
1098         long verify_error;
1099         MS_STATIC char buf[BUFSIZ];
1100
1101         if ((i=SSL_accept(con)) <= 0)
1102                 {
1103                 if (BIO_sock_should_retry(i))
1104                         {
1105                         BIO_printf(bio_s_out,"DELAY\n");
1106                         return(1);
1107                         }
1108
1109                 BIO_printf(bio_err,"ERROR\n");
1110                 verify_error=SSL_get_verify_result(con);
1111                 if (verify_error != X509_V_OK)
1112                         {
1113                         BIO_printf(bio_err,"verify error:%s\n",
1114                                 X509_verify_cert_error_string(verify_error));
1115                         }
1116                 else
1117                         ERR_print_errors(bio_err);
1118                 return(0);
1119                 }
1120
1121         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1122
1123         peer=SSL_get_peer_certificate(con);
1124         if (peer != NULL)
1125                 {
1126                 BIO_printf(bio_s_out,"Client certificate\n");
1127                 PEM_write_bio_X509(bio_s_out,peer);
1128                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1129                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1130                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1131                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1132                 X509_free(peer);
1133                 }
1134
1135         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1136                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1137         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1138         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1139         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1140         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1141                 TLS1_FLAGS_TLS_PADDING_BUG)
1142                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1143
1144         return(1);
1145         }
1146
1147 #ifndef NO_DH
1148 static DH *load_dh_param(char *dhfile)
1149         {
1150         DH *ret=NULL;
1151         BIO *bio;
1152
1153         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1154                 goto err;
1155         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1156 err:
1157         if (bio != NULL) BIO_free(bio);
1158         return(ret);
1159         }
1160 #endif
1161
1162 #if 0
1163 static int load_CA(SSL_CTX *ctx, char *file)
1164         {
1165         FILE *in;
1166         X509 *x=NULL;
1167
1168         if ((in=fopen(file,"r")) == NULL)
1169                 return(0);
1170
1171         for (;;)
1172                 {
1173                 if (PEM_read_X509(in,&x,NULL) == NULL)
1174                         break;
1175                 SSL_CTX_add_client_CA(ctx,x);
1176                 }
1177         if (x != NULL) X509_free(x);
1178         fclose(in);
1179         return(1);
1180         }
1181 #endif
1182
1183 static int www_body(char *hostname, int s, unsigned char *context)
1184         {
1185         char *buf=NULL;
1186         int ret=1;
1187         int i,j,k,blank,dot;
1188         struct stat st_buf;
1189         SSL *con;
1190         SSL_CIPHER *c;
1191         BIO *io,*ssl_bio,*sbio;
1192         long total_bytes;
1193
1194         buf=OPENSSL_malloc(bufsize);
1195         if (buf == NULL) return(0);
1196         io=BIO_new(BIO_f_buffer());
1197         ssl_bio=BIO_new(BIO_f_ssl());
1198         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1199
1200 #ifdef FIONBIO
1201         if (s_nbio)
1202                 {
1203                 unsigned long sl=1;
1204
1205                 if (!s_quiet)
1206                         BIO_printf(bio_err,"turning on non blocking io\n");
1207                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1208                         ERR_print_errors(bio_err);
1209                 }
1210 #endif
1211
1212         /* lets make the output buffer a reasonable size */
1213         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1214
1215         if ((con=SSL_new(ctx)) == NULL) goto err;
1216         if(context) SSL_set_session_id_context(con, context,
1217                                                strlen((char *)context));
1218
1219         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1220         if (s_nbio_test)
1221                 {
1222                 BIO *test;
1223
1224                 test=BIO_new(BIO_f_nbio_test());
1225                 sbio=BIO_push(test,sbio);
1226                 }
1227         SSL_set_bio(con,sbio,sbio);
1228         SSL_set_accept_state(con);
1229
1230         /* SSL_set_fd(con,s); */
1231         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1232         BIO_push(io,ssl_bio);
1233 #ifdef CHARSET_EBCDIC
1234         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1235 #endif
1236
1237         if (s_debug)
1238                 {
1239                 con->debug=1;
1240                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1241                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1242                 }
1243
1244         blank=0;
1245         for (;;)
1246                 {
1247                 if (hack)
1248                         {
1249                         i=SSL_accept(con);
1250
1251                         switch (SSL_get_error(con,i))
1252                                 {
1253                         case SSL_ERROR_NONE:
1254                                 break;
1255                         case SSL_ERROR_WANT_WRITE:
1256                         case SSL_ERROR_WANT_READ:
1257                         case SSL_ERROR_WANT_X509_LOOKUP:
1258                                 continue;
1259                         case SSL_ERROR_SYSCALL:
1260                         case SSL_ERROR_SSL:
1261                         case SSL_ERROR_ZERO_RETURN:
1262                                 ret=1;
1263                                 goto err;
1264                                 /* break; */
1265                                 }
1266
1267                         SSL_renegotiate(con);
1268                         SSL_write(con,NULL,0);
1269                         }
1270
1271                 i=BIO_gets(io,buf,bufsize-1);
1272                 if (i < 0) /* error */
1273                         {
1274                         if (!BIO_should_retry(io))
1275                                 {
1276                                 if (!s_quiet)
1277                                         ERR_print_errors(bio_err);
1278                                 goto err;
1279                                 }
1280                         else
1281                                 {
1282                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1283 #ifndef MSDOS
1284                                 sleep(1);
1285 #endif
1286                                 continue;
1287                                 }
1288                         }
1289                 else if (i == 0) /* end of input */
1290                         {
1291                         ret=1;
1292                         goto end;
1293                         }
1294
1295                 /* else we have data */
1296                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1297                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1298                         {
1299                         char *p;
1300                         X509 *peer;
1301                         STACK_OF(SSL_CIPHER) *sk;
1302                         static char *space="                          ";
1303
1304                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1305                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1306                         BIO_puts(io,"<pre>\n");
1307 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1308                         BIO_puts(io,"\n");
1309                         for (i=0; i<local_argc; i++)
1310                                 {
1311                                 BIO_puts(io,local_argv[i]);
1312                                 BIO_write(io," ",1);
1313                                 }
1314                         BIO_puts(io,"\n");
1315
1316                         /* The following is evil and should not really
1317                          * be done */
1318                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1319                         sk=SSL_get_ciphers(con);
1320                         j=sk_SSL_CIPHER_num(sk);
1321                         for (i=0; i<j; i++)
1322                                 {
1323                                 c=sk_SSL_CIPHER_value(sk,i);
1324                                 BIO_printf(io,"%-11s:%-25s",
1325                                         SSL_CIPHER_get_version(c),
1326                                         SSL_CIPHER_get_name(c));
1327                                 if ((((i+1)%2) == 0) && (i+1 != j))
1328                                         BIO_puts(io,"\n");
1329                                 }
1330                         BIO_puts(io,"\n");
1331                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1332                         if (p != NULL)
1333                                 {
1334                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1335                                 j=i=0;
1336                                 while (*p)
1337                                         {
1338                                         if (*p == ':')
1339                                                 {
1340                                                 BIO_write(io,space,26-j);
1341                                                 i++;
1342                                                 j=0;
1343                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1344                                                 }
1345                                         else
1346                                                 {
1347                                                 BIO_write(io,p,1);
1348                                                 j++;
1349                                                 }
1350                                         p++;
1351                                         }
1352                                 BIO_puts(io,"\n");
1353                                 }
1354                         BIO_printf(io,((con->hit)
1355                                 ?"---\nReused, "
1356                                 :"---\nNew, "));
1357                         c=SSL_get_current_cipher(con);
1358                         BIO_printf(io,"%s, Cipher is %s\n",
1359                                 SSL_CIPHER_get_version(c),
1360                                 SSL_CIPHER_get_name(c));
1361                         SSL_SESSION_print(io,SSL_get_session(con));
1362                         BIO_printf(io,"---\n");
1363                         print_stats(io,SSL_get_SSL_CTX(con));
1364                         BIO_printf(io,"---\n");
1365                         peer=SSL_get_peer_certificate(con);
1366                         if (peer != NULL)
1367                                 {
1368                                 BIO_printf(io,"Client certificate\n");
1369                                 X509_print(io,peer);
1370                                 PEM_write_bio_X509(io,peer);
1371                                 }
1372                         else
1373                                 BIO_puts(io,"no client certificate available\n");
1374                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1375                         break;
1376                         }
1377                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1378                         {
1379                         BIO *file;
1380                         char *p,*e;
1381                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1382
1383                         /* skip the '/' */
1384                         p= &(buf[5]);
1385                         dot=0;
1386                         for (e=p; *e != '\0'; e++)
1387                                 {
1388                                 if (e[0] == ' ') break;
1389                                 if (    (e[0] == '.') &&
1390                                         (strncmp(&(e[-1]),"/../",4) == 0))
1391                                         dot=1;
1392                                 }
1393
1394
1395                         if (*e == '\0')
1396                                 {
1397                                 BIO_puts(io,text);
1398                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1399                                 break;
1400                                 }
1401                         *e='\0';
1402
1403                         if (dot)
1404                                 {
1405                                 BIO_puts(io,text);
1406                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1407                                 break;
1408                                 }
1409
1410                         if (*p == '/')
1411                                 {
1412                                 BIO_puts(io,text);
1413                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1414                                 break;
1415                                 }
1416
1417                         /* append if a directory lookup */
1418                         if (e[-1] == '/')
1419                                 strcat(p,"index.html");
1420
1421                         /* if a directory, do the index thang */
1422                         if (stat(p,&st_buf) < 0)
1423                                 {
1424                                 BIO_puts(io,text);
1425                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1426                                 ERR_print_errors(io);
1427                                 break;
1428                                 }
1429                         if (S_ISDIR(st_buf.st_mode))
1430                                 {
1431                                 strcat(p,"/index.html");
1432                                 }
1433
1434                         if ((file=BIO_new_file(p,"r")) == NULL)
1435                                 {
1436                                 BIO_puts(io,text);
1437                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1438                                 ERR_print_errors(io);
1439                                 break;
1440                                 }
1441
1442                         if (!s_quiet)
1443                                 BIO_printf(bio_err,"FILE:%s\n",p);
1444
1445                         i=strlen(p);
1446                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1447                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1448                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1449                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1450                         else
1451                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1452                         /* send the file */
1453                         total_bytes=0;
1454                         for (;;)
1455                                 {
1456                                 i=BIO_read(file,buf,bufsize);
1457                                 if (i <= 0) break;
1458
1459 #ifdef RENEG
1460                                 total_bytes+=i;
1461                                 fprintf(stderr,"%d\n",i);
1462                                 if (total_bytes > 3*1024)
1463                                         {
1464                                         total_bytes=0;
1465                                         fprintf(stderr,"RENEGOTIATE\n");
1466                                         SSL_renegotiate(con);
1467                                         }
1468 #endif
1469
1470                                 for (j=0; j<i; )
1471                                         {
1472 #ifdef RENEG
1473 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1474 #endif
1475                                         k=BIO_write(io,&(buf[j]),i-j);
1476                                         if (k <= 0)
1477                                                 {
1478                                                 if (!BIO_should_retry(io))
1479                                                         goto write_error;
1480                                                 else
1481                                                         {
1482                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1483                                                         }
1484                                                 }
1485                                         else
1486                                                 {
1487                                                 j+=k;
1488                                                 }
1489                                         }
1490                                 }
1491 write_error:
1492                         BIO_free(file);
1493                         break;
1494                         }
1495                 }
1496
1497         for (;;)
1498                 {
1499                 i=(int)BIO_flush(io);
1500                 if (i <= 0)
1501                         {
1502                         if (!BIO_should_retry(io))
1503                                 break;
1504                         }
1505                 else
1506                         break;
1507                 }
1508 end:
1509 #if 1
1510         /* make sure we re-use sessions */
1511         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1512 #else
1513         /* This kills performance */
1514 /*      SSL_shutdown(con); A shutdown gets sent in the
1515  *      BIO_free_all(io) procession */
1516 #endif
1517
1518 err:
1519
1520         if (ret >= 0)
1521                 BIO_printf(bio_s_out,"ACCEPT\n");
1522
1523         if (buf != NULL) OPENSSL_free(buf);
1524         if (io != NULL) BIO_free_all(io);
1525 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1526         return(ret);
1527         }
1528
1529 #ifndef NO_RSA
1530 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1531         {
1532         static RSA *rsa_tmp=NULL;
1533
1534         if (rsa_tmp == NULL)
1535                 {
1536                 if (!s_quiet)
1537                         {
1538                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1539                         (void)BIO_flush(bio_err);
1540                         }
1541                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1542                 if (!s_quiet)
1543                         {
1544                         BIO_printf(bio_err,"\n");
1545                         (void)BIO_flush(bio_err);
1546                         }
1547                 }
1548         return(rsa_tmp);
1549         }
1550 #endif