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 "s_apps.h"
  87
  88 #ifdef WINDOWS
  89 #include <conio.h>
  90 #endif
  91
  92 #if (defined(VMS) && __VMS_VER < 70000000)
  93 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
  94 #undef FIONBIO
  95 #endif
  96
  97 #if defined(NO_RSA) && !defined(NO_SSL2)
  98 #define NO_SSL2
  99 #endif
 100
 101 #ifndef NO_RSA
 102 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 103 #endif
 104 static int sv_body(char *hostname, int s, unsigned char *context);
 105 static int www_body(char *hostname, int s, unsigned char *context);
 106 static void close_accept_socket(void );
 107 static void sv_usage(void);
 108 static int init_ssl_connection(SSL *s);
 109 static void print_stats(BIO *bp,SSL_CTX *ctx);
 110 #ifndef NO_DH
 111 static DH *load_dh_param(void );
 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 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=32;
 157 static int accept_socket= -1;
 158
 159 #define TEST_CERT       "server.pem"
 160 #undef PROG
 161 #define PROG            s_server_main
 162
 163 #define DH_PARAM        "server.pem"
 164
 165 extern int verify_depth;
 166
 167 static char *cipher=NULL;
 168 static int s_server_verify=SSL_VERIFY_NONE;
 169 static int s_server_session_id_context = 1; /* anything will do */
 170 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 171 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 172 #ifdef FIONBIO
 173 static int s_nbio=0;
 174 #endif
 175 static int s_nbio_test=0;
 176 int s_crlf=0;
 177 static SSL_CTX *ctx=NULL;
 178 static int www=0;
 179
 180 static BIO *bio_s_out=NULL;
 181 static int s_debug=0;
 182 static int s_quiet=0;
 183
 184 static int hack=0;
 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         }
 208 #endif
 209
 210 static void sv_usage(void)
 211         {
 212         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 213         BIO_printf(bio_err,"\n");
 214         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 215         BIO_printf(bio_err," -context arg  - set session ID context\n");
 216         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 217         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 218         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 219         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 220         BIO_printf(bio_err," -key arg      - RSA file to use, PEM format assumed, in cert file if\n");
 221         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 222         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 223         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 224 #ifdef FIONBIO
 225         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 226 #endif
 227         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 228         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 229         BIO_printf(bio_err," -debug        - Print more output\n");
 230         BIO_printf(bio_err," -state        - Print the SSL states\n");
 231         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 232         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 233         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 234         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\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 compatability\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         }
 250
 251 static int local_argc=0;
 252 static char **local_argv;
 253
 254 #ifdef CHARSET_EBCDIC
 255 static int ebcdic_new(BIO *bi);
 256 static int ebcdic_free(BIO *a);
 257 static int ebcdic_read(BIO *b, char *out, int outl);
 258 static int ebcdic_write(BIO *b, char *in, int inl);
 259 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
 260 static int ebcdic_gets(BIO *bp, char *buf, int size);
 261 static int ebcdic_puts(BIO *bp, char *str);
 262
 263 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 264 static BIO_METHOD methods_ebcdic=
 265         {
 266         BIO_TYPE_EBCDIC_FILTER,
 267         "EBCDIC/ASCII filter",
 268         ebcdic_write,
 269         ebcdic_read,
 270         ebcdic_puts,
 271         ebcdic_gets,
 272         ebcdic_ctrl,
 273         ebcdic_new,
 274         ebcdic_free,
 275         };
 276
 277 typedef struct
 278 {
 279         size_t  alloced;
 280         char    buff[1];
 281 } EBCDIC_OUTBUFF;
 282
 283 BIO_METHOD *BIO_f_ebcdic_filter()
 284 {
 285         return(&methods_ebcdic);
 286 }
 287
 288 static int ebcdic_new(BIO *bi)
 289 {
 290         EBCDIC_OUTBUFF *wbuf;
 291
 292         wbuf = (EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 293         wbuf->alloced = 1024;
 294         wbuf->buff[0] = '\0';
 295
 296         bi->ptr=(char *)wbuf;
 297         bi->init=1;
 298         bi->flags=0;
 299         return(1);
 300 }
 301
 302 static int ebcdic_free(BIO *a)
 303 {
 304         if (a == NULL) return(0);
 305         if (a->ptr != NULL)
 306                 Free(a->ptr);
 307         a->ptr=NULL;
 308         a->init=0;
 309         a->flags=0;
 310         return(1);
 311 }
 312
 313 static int ebcdic_read(BIO *b, char *out, int outl)
 314 {
 315         int ret=0;
 316
 317         if (out == NULL || outl == 0) return(0);
 318         if (b->next_bio == NULL) return(0);
 319
 320         ret=BIO_read(b->next_bio,out,outl);
 321         if (ret > 0)
 322                 ascii2ebcdic(out,out,ret);
 323         return(ret);
 324 }
 325
 326 static int ebcdic_write(BIO *b, char *in, int inl)
 327 {
 328         EBCDIC_OUTBUFF *wbuf;
 329         int ret=0;
 330         int num;
 331         unsigned char n;
 332
 333         if ((in == NULL) || (inl <= 0)) return(0);
 334         if (b->next_bio == NULL) return(0);
 335
 336         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 337
 338         if (inl > (num = wbuf->alloced))
 339         {
 340                 num = num + num;  /* double the size */
 341                 if (num < inl)
 342                         num = inl;
 343                 Free((char*)wbuf);
 344                 wbuf=(EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + num);
 345
 346                 wbuf->alloced = num;
 347                 wbuf->buff[0] = '\0';
 348
 349                 b->ptr=(char *)wbuf;
 350         }
 351
 352         ebcdic2ascii(wbuf->buff, in, inl);
 353
 354         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 355
 356         return(ret);
 357 }
 358
 359 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
 360 {
 361         long ret;
 362
 363         if (b->next_bio == NULL) return(0);
 364         switch (cmd)
 365         {
 366         case BIO_CTRL_DUP:
 367                 ret=0L;
 368                 break;
 369         default:
 370                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 371                 break;
 372         }
 373         return(ret);
 374 }
 375
 376 static int ebcdic_gets(BIO *bp, char *buf, int size)
 377 {
 378         int i, ret;
 379         if (bp->next_bio == NULL) return(0);
 380 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 381         for (i=0; i<size-1; ++i)
 382         {
 383                 ret = ebcdic_read(bp,&buf[i],1);
 384                 if (ret <= 0)
 385                         break;
 386                 else if (buf[i] == '\n')
 387                 {
 388                         ++i;
 389                         break;
 390                 }
 391         }
 392         if (i < size)
 393                 buf[i] = '\0';
 394         return (ret < 0 && i == 0) ? ret : i;
 395 }
 396
 397 static int ebcdic_puts(BIO *bp, char *str)
 398 {
 399         if (bp->next_bio == NULL) return(0);
 400         return ebcdic_write(bp, str, strlen(str));
 401 }
 402 #endif
 403
 404 int MAIN(int argc, char *argv[])
 405         {
 406         short port=PORT;
 407         char *CApath=NULL,*CAfile=NULL;
 408         char *context = NULL;
 409         int badop=0,bugs=0;
 410         int ret=1;
 411         int off=0;
 412         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 413         int state=0;
 414         SSL_METHOD *meth=NULL;
 415 #ifndef NO_DH
 416         DH *dh=NULL;
 417 #endif
 418
 419 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 420         meth=SSLv23_server_method();
 421 #elif !defined(NO_SSL3)
 422         meth=SSLv3_server_method();
 423 #elif !defined(NO_SSL2)
 424         meth=SSLv2_server_method();
 425 #endif
 426
 427         local_argc=argc;
 428         local_argv=argv;
 429
 430         apps_startup();
 431 #ifdef MONOLITH
 432         s_server_init();
 433 #endif
 434
 435         if (bio_err == NULL)
 436                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 437
 438         verify_depth=0;
 439 #ifdef FIONBIO
 440         s_nbio=0;
 441 #endif
 442         s_nbio_test=0;
 443
 444         argc--;
 445         argv++;
 446
 447         while (argc >= 1)
 448                 {
 449                 if      ((strcmp(*argv,"-port") == 0) ||
 450                          (strcmp(*argv,"-accept") == 0))
 451                         {
 452                         if (--argc < 1) goto bad;
 453                         if (!extract_port(*(++argv),&port))
 454                                 goto bad;
 455                         }
 456                 else if (strcmp(*argv,"-verify") == 0)
 457                         {
 458                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 459                         if (--argc < 1) goto bad;
 460                         verify_depth=atoi(*(++argv));
 461                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 462                         }
 463                 else if (strcmp(*argv,"-Verify") == 0)
 464                         {
 465                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 466                                 SSL_VERIFY_CLIENT_ONCE;
 467                         if (--argc < 1) goto bad;
 468                         verify_depth=atoi(*(++argv));
 469                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 470                         }
 471                 else if (strcmp(*argv,"-context") == 0)
 472                         {
 473                         if (--argc < 1) goto bad;
 474                         context= *(++argv);
 475                         }
 476                 else if (strcmp(*argv,"-cert") == 0)
 477                         {
 478                         if (--argc < 1) goto bad;
 479                         s_cert_file= *(++argv);
 480                         }
 481                 else if (strcmp(*argv,"-key") == 0)
 482                         {
 483                         if (--argc < 1) goto bad;
 484                         s_key_file= *(++argv);
 485                         }
 486                 else if (strcmp(*argv,"-dcert") == 0)
 487                         {
 488                         if (--argc < 1) goto bad;
 489                         s_dcert_file= *(++argv);
 490                         }
 491                 else if (strcmp(*argv,"-dkey") == 0)
 492                         {
 493                         if (--argc < 1) goto bad;
 494                         s_dkey_file= *(++argv);
 495                         }
 496                 else if (strcmp(*argv,"-nocert") == 0)
 497                         {
 498                         nocert=1;
 499                         }
 500                 else if (strcmp(*argv,"-CApath") == 0)
 501                         {
 502                         if (--argc < 1) goto bad;
 503                         CApath= *(++argv);
 504                         }
 505                 else if (strcmp(*argv,"-cipher") == 0)
 506                         {
 507                         if (--argc < 1) goto bad;
 508                         cipher= *(++argv);
 509                         }
 510                 else if (strcmp(*argv,"-CAfile") == 0)
 511                         {
 512                         if (--argc < 1) goto bad;
 513                         CAfile= *(++argv);
 514                         }
 515 #ifdef FIONBIO
 516                 else if (strcmp(*argv,"-nbio") == 0)
 517                         { s_nbio=1; }
 518 #endif
 519                 else if (strcmp(*argv,"-nbio_test") == 0)
 520                         {
 521 #ifdef FIONBIO
 522                         s_nbio=1;
 523 #endif
 524                         s_nbio_test=1;
 525                         }
 526                 else if (strcmp(*argv,"-debug") == 0)
 527                         { s_debug=1; }
 528                 else if (strcmp(*argv,"-hack") == 0)
 529                         { hack=1; }
 530                 else if (strcmp(*argv,"-state") == 0)
 531                         { state=1; }
 532                 else if (strcmp(*argv,"-crlf") == 0)
 533                         { s_crlf=1; }
 534                 else if (strcmp(*argv,"-quiet") == 0)
 535                         { s_quiet=1; }
 536                 else if (strcmp(*argv,"-bugs") == 0)
 537                         { bugs=1; }
 538                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 539                         { no_tmp_rsa=1; }
 540                 else if (strcmp(*argv,"-no_dhe") == 0)
 541                         { no_dhe=1; }
 542                 else if (strcmp(*argv,"-www") == 0)
 543                         { www=1; }
 544                 else if (strcmp(*argv,"-WWW") == 0)
 545                         { www=2; }
 546                 else if (strcmp(*argv,"-no_ssl2") == 0)
 547                         { off|=SSL_OP_NO_SSLv2; }
 548                 else if (strcmp(*argv,"-no_ssl3") == 0)
 549                         { off|=SSL_OP_NO_SSLv3; }
 550                 else if (strcmp(*argv,"-no_tls1") == 0)
 551                         { off|=SSL_OP_NO_TLSv1; }
 552 #ifndef NO_SSL2
 553                 else if (strcmp(*argv,"-ssl2") == 0)
 554                         { meth=SSLv2_server_method(); }
 555 #endif
 556 #ifndef NO_SSL3
 557                 else if (strcmp(*argv,"-ssl3") == 0)
 558                         { meth=SSLv3_server_method(); }
 559 #endif
 560 #ifndef NO_TLS1
 561                 else if (strcmp(*argv,"-tls1") == 0)
 562                         { meth=TLSv1_server_method(); }
 563 #endif
 564                 else
 565                         {
 566                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 567                         badop=1;
 568                         break;
 569                         }
 570                 argc--;
 571                 argv++;
 572                 }
 573         if (badop)
 574                 {
 575 bad:
 576                 sv_usage();
 577                 goto end;
 578                 }
 579
 580         if (bio_s_out == NULL)
 581                 {
 582                 if (s_quiet && !s_debug)
 583                         {
 584                         bio_s_out=BIO_new(BIO_s_null());
 585                         }
 586                 else
 587                         {
 588                         if (bio_s_out == NULL)
 589                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 590                         }
 591                 }
 592
 593 #if !defined(NO_RSA) || !defined(NO_DSA)
 594         if (nocert)
 595 #endif
 596                 {
 597                 s_cert_file=NULL;
 598                 s_key_file=NULL;
 599                 s_dcert_file=NULL;
 600                 s_dkey_file=NULL;
 601                 }
 602
 603         SSL_load_error_strings();
 604         SSLeay_add_ssl_algorithms();
 605
 606         ctx=SSL_CTX_new(meth);
 607         if (ctx == NULL)
 608                 {
 609                 ERR_print_errors(bio_err);
 610                 goto end;
 611                 }
 612
 613         SSL_CTX_set_quiet_shutdown(ctx,1);
 614         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 615         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 616         SSL_CTX_set_options(ctx,off);
 617         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 618
 619         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 620
 621         SSL_CTX_sess_set_cache_size(ctx,128);
 622
 623 #if 0
 624         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 625 #endif
 626
 627 #if 0
 628         if (s_cert_file == NULL)
 629                 {
 630                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 631                 goto end;
 632                 }
 633 #endif
 634
 635         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 636                 (!SSL_CTX_set_default_verify_paths(ctx)))
 637                 {
 638                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 639                 ERR_print_errors(bio_err);
 640                 /* goto end; */
 641                 }
 642
 643 #ifndef NO_DH
 644         if (!no_dhe)
 645                 {
 646                 /* EAY EAY EAY evil hack */
 647                 dh=load_dh_param();
 648                 if (dh != NULL)
 649                         {
 650                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 651                         }
 652                 else
 653                         {
 654                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 655                         dh=get_dh512();
 656                         }
 657                 (void)BIO_flush(bio_s_out);
 658
 659                 SSL_CTX_set_tmp_dh(ctx,dh);
 660                 DH_free(dh);
 661                 }
 662 #endif
 663
 664         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 665                 goto end;
 666         if (s_dcert_file != NULL)
 667                 {
 668                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 669                         goto end;
 670                 }
 671
 672 #ifndef NO_RSA
 673 #if 1
 674         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 675 #else
 676         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 677                 {
 678                 RSA *rsa;
 679
 680                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 681                 BIO_flush(bio_s_out);
 682
 683                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 684
 685                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 686                         {
 687                         ERR_print_errors(bio_err);
 688                         goto end;
 689                         }
 690                 RSA_free(rsa);
 691                 BIO_printf(bio_s_out,"\n");
 692                 }
 693 #endif
 694 #endif
 695
 696         if (cipher != NULL)
 697                 SSL_CTX_set_cipher_list(ctx,cipher);
 698         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 699         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 700                 sizeof s_server_session_id_context);
 701
 702         SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 703
 704         BIO_printf(bio_s_out,"ACCEPT\n");
 705         if (www)
 706                 do_server(port,&accept_socket,www_body, context);
 707         else
 708                 do_server(port,&accept_socket,sv_body, context);
 709         print_stats(bio_s_out,ctx);
 710         ret=0;
 711 end:
 712         if (ctx != NULL) SSL_CTX_free(ctx);
 713         if (bio_s_out != NULL)
 714                 {
 715                 BIO_free(bio_s_out);
 716                 bio_s_out=NULL;
 717                 }
 718         EXIT(ret);
 719         }
 720
 721 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 722         {
 723         BIO_printf(bio,"%4ld items in the session cache\n",
 724                 SSL_CTX_sess_number(ssl_ctx));
 725         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 726                 SSL_CTX_sess_connect(ssl_ctx));
 727         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 728                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 729         BIO_printf(bio,"%4d client connects that finished\n",
 730                 SSL_CTX_sess_connect_good(ssl_ctx));
 731         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 732                 SSL_CTX_sess_accept(ssl_ctx));
 733         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 734                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 735         BIO_printf(bio,"%4d server accepts that finished\n",
 736                 SSL_CTX_sess_accept_good(ssl_ctx));
 737         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 738         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 739         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 740         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 741         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 742                 SSL_CTX_sess_cache_full(ssl_ctx),
 743                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 744         }
 745
 746 static int sv_body(char *hostname, int s, unsigned char *context)
 747         {
 748         char *buf=NULL;
 749         fd_set readfds;
 750         int ret=1,width;
 751         int k,i;
 752         unsigned long l;
 753         SSL *con=NULL;
 754         BIO *sbio;
 755 #ifdef WINDOWS
 756         struct timeval tv;
 757 #endif
 758
 759         if ((buf=Malloc(bufsize)) == NULL)
 760                 {
 761                 BIO_printf(bio_err,"out of memory\n");
 762                 goto err;
 763                 }
 764 #ifdef FIONBIO
 765         if (s_nbio)
 766                 {
 767                 unsigned long sl=1;
 768
 769                 if (!s_quiet)
 770                         BIO_printf(bio_err,"turning on non blocking io\n");
 771                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 772                         ERR_print_errors(bio_err);
 773                 }
 774 #endif
 775
 776         if (con == NULL) {
 777                 con=(SSL *)SSL_new(ctx);
 778                 if(context)
 779                       SSL_set_session_id_context(con, context,
 780                                                  strlen((char *)context));
 781         }
 782         SSL_clear(con);
 783
 784         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 785         if (s_nbio_test)
 786                 {
 787                 BIO *test;
 788
 789                 test=BIO_new(BIO_f_nbio_test());
 790                 sbio=BIO_push(test,sbio);
 791                 }
 792         SSL_set_bio(con,sbio,sbio);
 793         SSL_set_accept_state(con);
 794         /* SSL_set_fd(con,s); */
 795
 796         if (s_debug)
 797                 {
 798                 con->debug=1;
 799                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 800                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 801                 }
 802
 803         width=s+1;
 804         for (;;)
 805                 {
 806                 FD_ZERO(&readfds);
 807 #ifndef WINDOWS
 808                 FD_SET(fileno(stdin),&readfds);
 809 #endif
 810                 FD_SET(s,&readfds);
 811                 /* Note: under VMS with SOCKETSHR the second parameter is
 812                  * currently of type (int *) whereas under other systems
 813                  * it is (void *) if you don't have a cast it will choke
 814                  * the compiler: if you do have a cast then you can either
 815                  * go for (int *) or (void *).
 816                  */
 817 #ifdef WINDOWS
 818                 /* Under Windows we can't select on stdin: only
 819                  * on sockets. As a workaround we timeout the select every
 820                  * second and check for any keypress. In a proper Windows
 821                  * application we wouldn't do this because it is inefficient.
 822                  */
 823                 tv.tv_sec = 1;
 824                 tv.tv_usec = 0;
 825                 i=select(width,(void *)&readfds,NULL,NULL,&tv);
 826                 if((i < 0) || (!i && !_kbhit() ) )continue;
 827                 if(_kbhit())
 828 #else
 829                 i=select(width,(void *)&readfds,NULL,NULL,NULL);
 830                 if (i <= 0) continue;
 831                 if (FD_ISSET(fileno(stdin),&readfds))
 832 #endif
 833                         {
 834                         if (s_crlf)
 835                                 {
 836                                 int j, lf_num;
 837
 838                                 i=read(fileno(stdin), buf, bufsize/2);
 839                                 lf_num = 0;
 840                                 /* both loops are skipped when i <= 0 */
 841                                 for (j = 0; j < i; j++)
 842                                         if (buf[j] == '\n')
 843                                                 lf_num++;
 844                                 for (j = i-1; j >= 0; j--)
 845                                         {
 846                                         buf[j+lf_num] = buf[j];
 847                                         if (buf[j] == '\n')
 848                                                 {
 849                                                 lf_num--;
 850                                                 i++;
 851                                                 buf[j+lf_num] = '\r';
 852                                                 }
 853                                         }
 854                                 assert(lf_num == 0);
 855                                 }
 856                         else
 857                                 i=read(fileno(stdin),buf,bufsize);
 858                         if (!s_quiet)
 859                                 {
 860                                 if ((i <= 0) || (buf[0] == 'Q'))
 861                                         {
 862                                         BIO_printf(bio_s_out,"DONE\n");
 863                                         SHUTDOWN(s);
 864                                         close_accept_socket();
 865                                         ret= -11;
 866                                         goto err;
 867                                         }
 868                                 if ((i <= 0) || (buf[0] == 'q'))
 869                                         {
 870                                         BIO_printf(bio_s_out,"DONE\n");
 871                                         SHUTDOWN(s);
 872         /*                              close_accept_socket();
 873                                         ret= -11;*/
 874                                         goto err;
 875                                         }
 876                                 if ((buf[0] == 'r') &&
 877                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 878                                         {
 879                                         SSL_renegotiate(con);
 880                                         i=SSL_do_handshake(con);
 881                                         printf("SSL_do_handshake -> %d\n",i);
 882                                         i=0; /*13; */
 883                                         continue;
 884                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 885                                         }
 886                                 if ((buf[0] == 'R') &&
 887                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 888                                         {
 889                                         SSL_set_verify(con,
 890                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
 891                                         SSL_renegotiate(con);
 892                                         i=SSL_do_handshake(con);
 893                                         printf("SSL_do_handshake -> %d\n",i);
 894                                         i=0; /* 13; */
 895                                         continue;
 896                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
 897                                         }
 898                                 if (buf[0] == 'P')
 899                                         {
 900                                         static char *str="Lets print some clear text\n";
 901                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
 902                                         }
 903                                 if (buf[0] == 'S')
 904                                         {
 905                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
 906                                         }
 907                                 }
 908 #ifdef CHARSET_EBCDIC
 909                         ebcdic2ascii(buf,buf,i);
 910 #endif
 911                         l=k=0;
 912                         for (;;)
 913                                 {
 914                                 /* should do a select for the write */
 915 #ifdef RENEG
 916 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
 917 #endif
 918                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
 919                                 switch (SSL_get_error(con,k))
 920                                         {
 921                                 case SSL_ERROR_NONE:
 922                                         break;
 923                                 case SSL_ERROR_WANT_WRITE:
 924                                 case SSL_ERROR_WANT_READ:
 925                                 case SSL_ERROR_WANT_X509_LOOKUP:
 926                                         BIO_printf(bio_s_out,"Write BLOCK\n");
 927                                         break;
 928                                 case SSL_ERROR_SYSCALL:
 929                                 case SSL_ERROR_SSL:
 930                                         BIO_printf(bio_s_out,"ERROR\n");
 931                                         ERR_print_errors(bio_err);
 932                                         ret=1;
 933                                         goto err;
 934                                         /* break; */
 935                                 case SSL_ERROR_ZERO_RETURN:
 936                                         BIO_printf(bio_s_out,"DONE\n");
 937                                         ret=1;
 938                                         goto err;
 939                                         }
 940                                 l+=k;
 941                                 i-=k;
 942                                 if (i <= 0) break;
 943                                 }
 944                         }
 945                 if (FD_ISSET(s,&readfds))
 946                         {
 947                         if (!SSL_is_init_finished(con))
 948                                 {
 949                                 i=init_ssl_connection(con);
 950
 951                                 if (i < 0)
 952                                         {
 953                                         ret=0;
 954                                         goto err;
 955                                         }
 956                                 else if (i == 0)
 957                                         {
 958                                         ret=1;
 959                                         goto err;
 960                                         }
 961                                 }
 962                         else
 963                                 {
 964 again:
 965                                 i=SSL_read(con,(char *)buf,bufsize);
 966                                 switch (SSL_get_error(con,i))
 967                                         {
 968                                 case SSL_ERROR_NONE:
 969 #ifdef CHARSET_EBCDIC
 970                                         ascii2ebcdic(buf,buf,i);
 971 #endif
 972                                         write(fileno(stdout),buf,
 973                                                 (unsigned int)i);
 974                                         if (SSL_pending(con)) goto again;
 975                                         break;
 976                                 case SSL_ERROR_WANT_WRITE:
 977                                 case SSL_ERROR_WANT_READ:
 978                                 case SSL_ERROR_WANT_X509_LOOKUP:
 979                                         BIO_printf(bio_s_out,"Read BLOCK\n");
 980                                         break;
 981                                 case SSL_ERROR_SYSCALL:
 982                                 case SSL_ERROR_SSL:
 983                                         BIO_printf(bio_s_out,"ERROR\n");
 984                                         ERR_print_errors(bio_err);
 985                                         ret=1;
 986                                         goto err;
 987                                 case SSL_ERROR_ZERO_RETURN:
 988                                         BIO_printf(bio_s_out,"DONE\n");
 989                                         ret=1;
 990                                         goto err;
 991                                         }
 992                                 }
 993                         }
 994                 }
 995 err:
 996         BIO_printf(bio_s_out,"shutting down SSL\n");
 997 #if 1
 998         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
 999 #else
1000         SSL_shutdown(con);
1001 #endif
1002         if (con != NULL) SSL_free(con);
1003         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1004         if (buf != NULL)
1005                 {
1006                 memset(buf,0,bufsize);
1007                 Free(buf);
1008                 }
1009         if (ret >= 0)
1010                 BIO_printf(bio_s_out,"ACCEPT\n");
1011         return(ret);
1012         }
1013
1014 static void close_accept_socket(void)
1015         {
1016         BIO_printf(bio_err,"shutdown accept socket\n");
1017         if (accept_socket >= 0)
1018                 {
1019                 SHUTDOWN2(accept_socket);
1020                 }
1021         }
1022
1023 static int init_ssl_connection(SSL *con)
1024         {
1025         int i;
1026         const char *str;
1027         X509 *peer;
1028         long verify_error;
1029         MS_STATIC char buf[BUFSIZ];
1030
1031         if ((i=SSL_accept(con)) <= 0)
1032                 {
1033                 if (BIO_sock_should_retry(i))
1034                         {
1035                         BIO_printf(bio_s_out,"DELAY\n");
1036                         return(1);
1037                         }
1038
1039                 BIO_printf(bio_err,"ERROR\n");
1040                 verify_error=SSL_get_verify_result(con);
1041                 if (verify_error != X509_V_OK)
1042                         {
1043                         BIO_printf(bio_err,"verify error:%s\n",
1044                                 X509_verify_cert_error_string(verify_error));
1045                         }
1046                 else
1047                         ERR_print_errors(bio_err);
1048                 return(0);
1049                 }
1050
1051         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1052
1053         peer=SSL_get_peer_certificate(con);
1054         if (peer != NULL)
1055                 {
1056                 BIO_printf(bio_s_out,"Client certificate\n");
1057                 PEM_write_bio_X509(bio_s_out,peer);
1058                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1059                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1060                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1061                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1062                 X509_free(peer);
1063                 }
1064
1065         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1066                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1067         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1068         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1069         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1070         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1071                 TLS1_FLAGS_TLS_PADDING_BUG)
1072                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1073
1074         return(1);
1075         }
1076
1077 #ifndef NO_DH
1078 static DH *load_dh_param(void)
1079         {
1080         DH *ret=NULL;
1081         BIO *bio;
1082
1083         if ((bio=BIO_new_file(DH_PARAM,"r")) == NULL)
1084                 goto err;
1085         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1086 err:
1087         if (bio != NULL) BIO_free(bio);
1088         return(ret);
1089         }
1090 #endif
1091
1092 #if 0
1093 static int load_CA(SSL_CTX *ctx, char *file)
1094         {
1095         FILE *in;
1096         X509 *x=NULL;
1097
1098         if ((in=fopen(file,"r")) == NULL)
1099                 return(0);
1100
1101         for (;;)
1102                 {
1103                 if (PEM_read_X509(in,&x,NULL) == NULL)
1104                         break;
1105                 SSL_CTX_add_client_CA(ctx,x);
1106                 }
1107         if (x != NULL) X509_free(x);
1108         fclose(in);
1109         return(1);
1110         }
1111 #endif
1112
1113 static int www_body(char *hostname, int s, unsigned char *context)
1114         {
1115         char *buf=NULL;
1116         int ret=1;
1117         int i,j,k,blank,dot;
1118         struct stat st_buf;
1119         SSL *con;
1120         SSL_CIPHER *c;
1121         BIO *io,*ssl_bio,*sbio;
1122         long total_bytes;
1123
1124         buf=Malloc(bufsize);
1125         if (buf == NULL) return(0);
1126         io=BIO_new(BIO_f_buffer());
1127         ssl_bio=BIO_new(BIO_f_ssl());
1128         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1129
1130 #ifdef FIONBIO
1131         if (s_nbio)
1132                 {
1133                 unsigned long sl=1;
1134
1135                 if (!s_quiet)
1136                         BIO_printf(bio_err,"turning on non blocking io\n");
1137                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1138                         ERR_print_errors(bio_err);
1139                 }
1140 #endif
1141
1142         /* lets make the output buffer a reasonable size */
1143         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1144
1145         if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
1146         if(context) SSL_set_session_id_context(con, context,
1147                                                strlen((char *)context));
1148
1149         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1150         if (s_nbio_test)
1151                 {
1152                 BIO *test;
1153
1154                 test=BIO_new(BIO_f_nbio_test());
1155                 sbio=BIO_push(test,sbio);
1156                 }
1157         SSL_set_bio(con,sbio,sbio);
1158         SSL_set_accept_state(con);
1159
1160         /* SSL_set_fd(con,s); */
1161         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1162         BIO_push(io,ssl_bio);
1163 #ifdef CHARSET_EBCDIC
1164         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1165 #endif
1166
1167         if (s_debug)
1168                 {
1169                 con->debug=1;
1170                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1171                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1172                 }
1173
1174         blank=0;
1175         for (;;)
1176                 {
1177                 if (hack)
1178                         {
1179                         i=SSL_accept(con);
1180
1181                         switch (SSL_get_error(con,i))
1182                                 {
1183                         case SSL_ERROR_NONE:
1184                                 break;
1185                         case SSL_ERROR_WANT_WRITE:
1186                         case SSL_ERROR_WANT_READ:
1187                         case SSL_ERROR_WANT_X509_LOOKUP:
1188                                 continue;
1189                         case SSL_ERROR_SYSCALL:
1190                         case SSL_ERROR_SSL:
1191                         case SSL_ERROR_ZERO_RETURN:
1192                                 ret=1;
1193                                 goto err;
1194                                 /* break; */
1195                                 }
1196
1197                         SSL_renegotiate(con);
1198                         SSL_write(con,NULL,0);
1199                         }
1200
1201                 i=BIO_gets(io,buf,bufsize-1);
1202                 if (i < 0) /* error */
1203                         {
1204                         if (!BIO_should_retry(io))
1205                                 {
1206                                 if (!s_quiet)
1207                                         ERR_print_errors(bio_err);
1208                                 goto err;
1209                                 }
1210                         else
1211                                 {
1212                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1213 #ifndef MSDOS
1214                                 sleep(1);
1215 #endif
1216                                 continue;
1217                                 }
1218                         }
1219                 else if (i == 0) /* end of input */
1220                         {
1221                         ret=1;
1222                         goto end;
1223                         }
1224
1225                 /* else we have data */
1226                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1227                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1228                         {
1229                         char *p;
1230                         X509 *peer;
1231                         STACK_OF(SSL_CIPHER) *sk;
1232                         static char *space="                          ";
1233
1234                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1235                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1236                         BIO_puts(io,"<pre>\n");
1237 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1238                         BIO_puts(io,"\n");
1239                         for (i=0; i<local_argc; i++)
1240                                 {
1241                                 BIO_puts(io,local_argv[i]);
1242                                 BIO_write(io," ",1);
1243                                 }
1244                         BIO_puts(io,"\n");
1245
1246                         /* The following is evil and should not really
1247                          * be done */
1248                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1249                         sk=SSL_get_ciphers(con);
1250                         j=sk_SSL_CIPHER_num(sk);
1251                         for (i=0; i<j; i++)
1252                                 {
1253                                 c=sk_SSL_CIPHER_value(sk,i);
1254                                 BIO_printf(io,"%-11s:%-25s",
1255                                         SSL_CIPHER_get_version(c),
1256                                         SSL_CIPHER_get_name(c));
1257                                 if ((((i+1)%2) == 0) && (i+1 != j))
1258                                         BIO_puts(io,"\n");
1259                                 }
1260                         BIO_puts(io,"\n");
1261                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1262                         if (p != NULL)
1263                                 {
1264                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1265                                 j=i=0;
1266                                 while (*p)
1267                                         {
1268                                         if (*p == ':')
1269                                                 {
1270                                                 BIO_write(io,space,26-j);
1271                                                 i++;
1272                                                 j=0;
1273                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1274                                                 }
1275                                         else
1276                                                 {
1277                                                 BIO_write(io,p,1);
1278                                                 j++;
1279                                                 }
1280                                         p++;
1281                                         }
1282                                 BIO_puts(io,"\n");
1283                                 }
1284                         BIO_printf(io,((con->hit)
1285                                 ?"---\nReused, "
1286                                 :"---\nNew, "));
1287                         c=SSL_get_current_cipher(con);
1288                         BIO_printf(io,"%s, Cipher is %s\n",
1289                                 SSL_CIPHER_get_version(c),
1290                                 SSL_CIPHER_get_name(c));
1291                         SSL_SESSION_print(io,SSL_get_session(con));
1292                         BIO_printf(io,"---\n");
1293                         print_stats(io,SSL_get_SSL_CTX(con));
1294                         BIO_printf(io,"---\n");
1295                         peer=SSL_get_peer_certificate(con);
1296                         if (peer != NULL)
1297                                 {
1298                                 BIO_printf(io,"Client certificate\n");
1299                                 X509_print(io,peer);
1300                                 PEM_write_bio_X509(io,peer);
1301                                 }
1302                         else
1303                                 BIO_puts(io,"no client certificate available\n");
1304                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1305                         break;
1306                         }
1307                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1308                         {
1309                         BIO *file;
1310                         char *p,*e;
1311                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1312
1313                         /* skip the '/' */
1314                         p= &(buf[5]);
1315                         dot=0;
1316                         for (e=p; *e != '\0'; e++)
1317                                 {
1318                                 if (e[0] == ' ') break;
1319                                 if (    (e[0] == '.') &&
1320                                         (strncmp(&(e[-1]),"/../",4) == 0))
1321                                         dot=1;
1322                                 }
1323
1324
1325                         if (*e == '\0')
1326                                 {
1327                                 BIO_puts(io,text);
1328                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1329                                 break;
1330                                 }
1331                         *e='\0';
1332
1333                         if (dot)
1334                                 {
1335                                 BIO_puts(io,text);
1336                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1337                                 break;
1338                                 }
1339
1340                         if (*p == '/')
1341                                 {
1342                                 BIO_puts(io,text);
1343                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1344                                 break;
1345                                 }
1346
1347                         /* append if a directory lookup */
1348                         if (e[-1] == '/')
1349                                 strcat(p,"index.html");
1350
1351                         /* if a directory, do the index thang */
1352                         if (stat(p,&st_buf) < 0)
1353                                 {
1354                                 BIO_puts(io,text);
1355                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1356                                 ERR_print_errors(io);
1357                                 break;
1358                                 }
1359                         if (S_ISDIR(st_buf.st_mode))
1360                                 {
1361                                 strcat(p,"/index.html");
1362                                 }
1363
1364                         if ((file=BIO_new_file(p,"r")) == NULL)
1365                                 {
1366                                 BIO_puts(io,text);
1367                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1368                                 ERR_print_errors(io);
1369                                 break;
1370                                 }
1371
1372                         if (!s_quiet)
1373                                 BIO_printf(bio_err,"FILE:%s\n",p);
1374
1375                         i=strlen(p);
1376                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1377                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1378                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1379                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1380                         else
1381                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1382                         /* send the file */
1383                         total_bytes=0;
1384                         for (;;)
1385                                 {
1386                                 i=BIO_read(file,buf,bufsize);
1387                                 if (i <= 0) break;
1388
1389 #ifdef RENEG
1390                                 total_bytes+=i;
1391                                 fprintf(stderr,"%d\n",i);
1392                                 if (total_bytes > 3*1024)
1393                                         {
1394                                         total_bytes=0;
1395                                         fprintf(stderr,"RENEGOTIATE\n");
1396                                         SSL_renegotiate(con);
1397                                         }
1398 #endif
1399
1400                                 for (j=0; j<i; )
1401                                         {
1402 #ifdef RENEG
1403 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1404 #endif
1405                                         k=BIO_write(io,&(buf[j]),i-j);
1406                                         if (k <= 0)
1407                                                 {
1408                                                 if (!BIO_should_retry(io))
1409                                                         goto write_error;
1410                                                 else
1411                                                         {
1412                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1413                                                         }
1414                                                 }
1415                                         else
1416                                                 {
1417                                                 j+=k;
1418                                                 }
1419                                         }
1420                                 }
1421 write_error:
1422                         BIO_free(file);
1423                         break;
1424                         }
1425                 }
1426
1427         for (;;)
1428                 {
1429                 i=(int)BIO_flush(io);
1430                 if (i <= 0)
1431                         {
1432                         if (!BIO_should_retry(io))
1433                                 break;
1434                         }
1435                 else
1436                         break;
1437                 }
1438 end:
1439 #if 1
1440         /* make sure we re-use sessions */
1441         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1442 #else
1443         /* This kills performace */
1444 /*      SSL_shutdown(con); A shutdown gets sent in the
1445  *      BIO_free_all(io) procession */
1446 #endif
1447
1448 err:
1449
1450         if (ret >= 0)
1451                 BIO_printf(bio_s_out,"ACCEPT\n");
1452
1453         if (buf != NULL) Free(buf);
1454         if (io != NULL) BIO_free_all(io);
1455 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1456         return(ret);
1457         }
1458
1459 #ifndef NO_RSA
1460 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1461         {
1462         static RSA *rsa_tmp=NULL;
1463
1464         if (rsa_tmp == NULL)
1465                 {
1466                 if (!s_quiet)
1467                         {
1468                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1469                         (void)BIO_flush(bio_err);
1470                         }
1471                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1472                 if (!s_quiet)
1473                         {
1474                         BIO_printf(bio_err,"\n");
1475                         (void)BIO_flush(bio_err);
1476                         }
1477                 }
1478         return(rsa_tmp);
1479         }
1480 #endif