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 #ifdef APPS_CRLF
  60 # include <assert.h>
  61 #endif
  62 #include <stdio.h>
  63 #include <stdlib.h>
  64 #include <string.h>
  65 #include <sys/types.h>
  66 #include <sys/stat.h>
  67 #ifdef NO_STDIO
  68 #define APPS_WIN16
  69 #endif
  70
  71 /* With IPv6, it looks like Digital has mixed up the proper order of
  72    recursive header file inclusion, resulting in the compiler complaining
  73    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
  74    is needed to have fileno() declared correctly...  So let's define u_int */
  75 #if defined(VMS) && defined(__DECC) && !defined(__U_INT)
  76 #define __U_INT
  77 typedef unsigned int u_int;
  78 #endif
  79
  80 #include <openssl/lhash.h>
  81 #include <openssl/bn.h>
  82 #define USE_SOCKETS
  83 #include "apps.h"
  84 #include <openssl/err.h>
  85 #include <openssl/pem.h>
  86 #include <openssl/x509.h>
  87 #include <openssl/ssl.h>
  88 #include "s_apps.h"
  89
  90 #if (defined(VMS) && __VMS_VER < 70000000)
  91 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
  92 #undef FIONBIO
  93 #endif
  94
  95 #if defined(NO_RSA) && !defined(NO_SSL2)
  96 #define NO_SSL2
  97 #endif
  98
  99 #ifndef NO_RSA
 100 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 101 #endif
 102 static int sv_body(char *hostname, int s, unsigned char *context);
 103 static int www_body(char *hostname, int s, unsigned char *context);
 104 static void close_accept_socket(void );
 105 static void sv_usage(void);
 106 static int init_ssl_connection(SSL *s);
 107 static void print_stats(BIO *bp,SSL_CTX *ctx);
 108 #ifndef NO_DH
 109 static DH *load_dh_param(void );
 110 static DH *get_dh512(void);
 111 #endif
 112 /* static void s_server_init(void);*/
 113
 114 #ifndef S_ISDIR
 115 # if defined(_S_IFMT) && defined(_S_IFDIR)
 116 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 117 # else
 118 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 119 # endif
 120 #endif
 121
 122 #ifndef NO_DH
 123 static unsigned char dh512_p[]={
 124         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 125         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 126         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 127         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 128         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 129         0x47,0x74,0xE8,0x33,
 130         };
 131 static unsigned char dh512_g[]={
 132         0x02,
 133         };
 134
 135 static DH *get_dh512(void)
 136         {
 137         DH *dh=NULL;
 138
 139         if ((dh=DH_new()) == NULL) return(NULL);
 140         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 141         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 142         if ((dh->p == NULL) || (dh->g == NULL))
 143                 return(NULL);
 144         return(dh);
 145         }
 146 #endif
 147
 148 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 149
 150 #undef BUFSIZZ
 151 #define BUFSIZZ 16*1024
 152 static int bufsize=32;
 153 static int accept_socket= -1;
 154
 155 #define TEST_CERT       "server.pem"
 156 #undef PROG
 157 #define PROG            s_server_main
 158
 159 #define DH_PARAM        "server.pem"
 160
 161 extern int verify_depth;
 162
 163 static char *cipher=NULL;
 164 static int s_server_verify=SSL_VERIFY_NONE;
 165 static int s_server_session_id_context = 1; /* anything will do */
 166 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 167 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 168 #ifdef FIONBIO
 169 static int s_nbio=0;
 170 #endif
 171 static int s_nbio_test=0;
 172 #ifdef APPS_CRLF
 173         int s_crlf=0;
 174 #endif
 175 static SSL_CTX *ctx=NULL;
 176 static int www=0;
 177
 178 static BIO *bio_s_out=NULL;
 179 static int s_debug=0;
 180 static int s_quiet=0;
 181
 182 #if 0
 183 static void s_server_init(void)
 184         {
 185         cipher=NULL;
 186         s_server_verify=SSL_VERIFY_NONE;
 187         s_dcert_file=NULL;
 188         s_dkey_file=NULL;
 189         s_cert_file=TEST_CERT;
 190         s_key_file=NULL;
 191 #ifdef FIONBIO
 192         s_nbio=0;
 193 #endif
 194         s_nbio_test=0;
 195         ctx=NULL;
 196         www=0;
 197
 198         bio_s_out=NULL;
 199         s_debug=0;
 200         s_quiet=0;
 201         }
 202 #endif
 203
 204 static void sv_usage(void)
 205         {
 206         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 207         BIO_printf(bio_err,"\n");
 208         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 209         BIO_printf(bio_err," -context arg  - set session ID context\n");
 210         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 211         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 212         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 213         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 214         BIO_printf(bio_err," -key arg      - RSA file to use, PEM format assumed, in cert file if\n");
 215         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 216         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 217         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 218 #ifdef FIONBIO
 219         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 220 #endif
 221         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 222 #ifdef APPS_CRLF
 223         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 224 #endif
 225         BIO_printf(bio_err," -debug        - Print more output\n");
 226         BIO_printf(bio_err," -state        - Print the SSL states\n");
 227         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 228         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 229         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 230         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 231         BIO_printf(bio_err," -quiet        - No server output\n");
 232         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 233         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 234         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 235         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 236         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 237         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 238         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 239 #ifndef NO_DH
 240         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 241 #endif
 242         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatability\n");
 243         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 244         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 245         }
 246
 247 static int local_argc=0;
 248 static char **local_argv;
 249 static int hack=0;
 250
 251 #ifdef CHARSET_EBCDIC
 252 static int ebcdic_new(BIO *bi);
 253 static int ebcdic_free(BIO *a);
 254 static int ebcdic_read(BIO *b, char *out, int outl);
 255 static int ebcdic_write(BIO *b, char *in, int inl);
 256 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
 257 static int ebcdic_gets(BIO *bp, char *buf, int size);
 258 static int ebcdic_puts(BIO *bp, char *str);
 259
 260 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 261 static BIO_METHOD methods_ebcdic=
 262         {
 263         BIO_TYPE_EBCDIC_FILTER,
 264         "EBCDIC/ASCII filter",
 265         ebcdic_write,
 266         ebcdic_read,
 267         ebcdic_puts,
 268         ebcdic_gets,
 269         ebcdic_ctrl,
 270         ebcdic_new,
 271         ebcdic_free,
 272         };
 273
 274 typedef struct
 275 {
 276         size_t  alloced;
 277         char    buff[1];
 278 } EBCDIC_OUTBUFF;
 279
 280 BIO_METHOD *BIO_f_ebcdic_filter()
 281 {
 282         return(&methods_ebcdic);
 283 }
 284
 285 static int ebcdic_new(BIO *bi)
 286 {
 287         EBCDIC_OUTBUFF *wbuf;
 288
 289         wbuf = (EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 290         wbuf->alloced = 1024;
 291         wbuf->buff[0] = '\0';
 292
 293         bi->ptr=(char *)wbuf;
 294         bi->init=1;
 295         bi->flags=0;
 296         return(1);
 297 }
 298
 299 static int ebcdic_free(BIO *a)
 300 {
 301         if (a == NULL) return(0);
 302         if (a->ptr != NULL)
 303                 Free(a->ptr);
 304         a->ptr=NULL;
 305         a->init=0;
 306         a->flags=0;
 307         return(1);
 308 }
 309
 310 static int ebcdic_read(BIO *b, char *out, int outl)
 311 {
 312         int ret=0;
 313
 314         if (out == NULL || outl == 0) return(0);
 315         if (b->next_bio == NULL) return(0);
 316
 317         ret=BIO_read(b->next_bio,out,outl);
 318         if (ret > 0)
 319                 ascii2ebcdic(out,out,ret);
 320         return(ret);
 321 }
 322
 323 static int ebcdic_write(BIO *b, char *in, int inl)
 324 {
 325         EBCDIC_OUTBUFF *wbuf;
 326         int ret=0;
 327         int num;
 328         unsigned char n;
 329
 330         if ((in == NULL) || (inl <= 0)) return(0);
 331         if (b->next_bio == NULL) return(0);
 332
 333         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 334
 335         if (inl > (num = wbuf->alloced))
 336         {
 337                 num = num + num;  /* double the size */
 338                 if (num < inl)
 339                         num = inl;
 340                 Free((char*)wbuf);
 341                 wbuf=(EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + num);
 342
 343                 wbuf->alloced = num;
 344                 wbuf->buff[0] = '\0';
 345
 346                 b->ptr=(char *)wbuf;
 347         }
 348
 349         ebcdic2ascii(wbuf->buff, in, inl);
 350
 351         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 352
 353         return(ret);
 354 }
 355
 356 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
 357 {
 358         long ret;
 359
 360         if (b->next_bio == NULL) return(0);
 361         switch (cmd)
 362         {
 363         case BIO_CTRL_DUP:
 364                 ret=0L;
 365                 break;
 366         default:
 367                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 368                 break;
 369         }
 370         return(ret);
 371 }
 372
 373 static int ebcdic_gets(BIO *bp, char *buf, int size)
 374 {
 375         int i, ret;
 376         if (bp->next_bio == NULL) return(0);
 377 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 378         for (i=0; i<size-1; ++i)
 379         {
 380                 ret = ebcdic_read(bp,&buf[i],1);
 381                 if (ret <= 0)
 382                         break;
 383                 else if (buf[i] == '\n')
 384                 {
 385                         ++i;
 386                         break;
 387                 }
 388         }
 389         if (i < size)
 390                 buf[i] = '\0';
 391         return (ret < 0 && i == 0) ? ret : i;
 392 }
 393
 394 static int ebcdic_puts(BIO *bp, char *str)
 395 {
 396         if (bp->next_bio == NULL) return(0);
 397         return ebcdic_write(bp, str, strlen(str));
 398 }
 399 #endif
 400
 401 int MAIN(int argc, char *argv[])
 402         {
 403         short port=PORT;
 404         char *CApath=NULL,*CAfile=NULL;
 405         char *context = NULL;
 406         int badop=0,bugs=0;
 407         int ret=1;
 408         int off=0;
 409         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 410         int state=0;
 411         SSL_METHOD *meth=NULL;
 412 #ifndef NO_DH
 413         DH *dh=NULL;
 414 #endif
 415
 416 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 417         meth=SSLv23_server_method();
 418 #elif !defined(NO_SSL3)
 419         meth=SSLv3_server_method();
 420 #elif !defined(NO_SSL2)
 421         meth=SSLv2_server_method();
 422 #endif
 423
 424         local_argc=argc;
 425         local_argv=argv;
 426
 427         apps_startup();
 428         s_quiet=0;
 429         s_debug=0;
 430
 431         if (bio_err == NULL)
 432                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 433
 434         verify_depth=0;
 435 #ifdef FIONBIO
 436         s_nbio=0;
 437 #endif
 438         s_nbio_test=0;
 439
 440         argc--;
 441         argv++;
 442
 443         while (argc >= 1)
 444                 {
 445                 if      ((strcmp(*argv,"-port") == 0) ||
 446                          (strcmp(*argv,"-accept") == 0))
 447                         {
 448                         if (--argc < 1) goto bad;
 449                         if (!extract_port(*(++argv),&port))
 450                                 goto bad;
 451                         }
 452                 else if (strcmp(*argv,"-verify") == 0)
 453                         {
 454                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 455                         if (--argc < 1) goto bad;
 456                         verify_depth=atoi(*(++argv));
 457                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 458                         }
 459                 else if (strcmp(*argv,"-Verify") == 0)
 460                         {
 461                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 462                                 SSL_VERIFY_CLIENT_ONCE;
 463                         if (--argc < 1) goto bad;
 464                         verify_depth=atoi(*(++argv));
 465                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 466                         }
 467                 else if (strcmp(*argv,"-context") == 0)
 468                         {
 469                         if (--argc < 1) goto bad;
 470                         context= *(++argv);
 471                         }
 472                 else if (strcmp(*argv,"-cert") == 0)
 473                         {
 474                         if (--argc < 1) goto bad;
 475                         s_cert_file= *(++argv);
 476                         }
 477                 else if (strcmp(*argv,"-key") == 0)
 478                         {
 479                         if (--argc < 1) goto bad;
 480                         s_key_file= *(++argv);
 481                         }
 482                 else if (strcmp(*argv,"-dcert") == 0)
 483                         {
 484                         if (--argc < 1) goto bad;
 485                         s_dcert_file= *(++argv);
 486                         }
 487                 else if (strcmp(*argv,"-dkey") == 0)
 488                         {
 489                         if (--argc < 1) goto bad;
 490                         s_dkey_file= *(++argv);
 491                         }
 492                 else if (strcmp(*argv,"-nocert") == 0)
 493                         {
 494                         nocert=1;
 495                         }
 496                 else if (strcmp(*argv,"-CApath") == 0)
 497                         {
 498                         if (--argc < 1) goto bad;
 499                         CApath= *(++argv);
 500                         }
 501                 else if (strcmp(*argv,"-cipher") == 0)
 502                         {
 503                         if (--argc < 1) goto bad;
 504                         cipher= *(++argv);
 505                         }
 506                 else if (strcmp(*argv,"-CAfile") == 0)
 507                         {
 508                         if (--argc < 1) goto bad;
 509                         CAfile= *(++argv);
 510                         }
 511 #ifdef FIONBIO
 512                 else if (strcmp(*argv,"-nbio") == 0)
 513                         { s_nbio=1; }
 514 #endif
 515                 else if (strcmp(*argv,"-nbio_test") == 0)
 516                         {
 517 #ifdef FIONBIO
 518                         s_nbio=1;
 519 #endif
 520                         s_nbio_test=1;
 521                         }
 522                 else if (strcmp(*argv,"-debug") == 0)
 523                         { s_debug=1; }
 524                 else if (strcmp(*argv,"-hack") == 0)
 525                         { hack=1; }
 526                 else if (strcmp(*argv,"-state") == 0)
 527                         { state=1; }
 528 #ifdef APPS_CRLF
 529                 else if (strcmp(*argv,"-crlf") == 0)
 530                         { s_crlf=1; }
 531 #endif
 532                 else if (strcmp(*argv,"-quiet") == 0)
 533                         { s_quiet=1; }
 534                 else if (strcmp(*argv,"-bugs") == 0)
 535                         { bugs=1; }
 536                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 537                         { no_tmp_rsa=1; }
 538                 else if (strcmp(*argv,"-no_dhe") == 0)
 539                         { no_dhe=1; }
 540                 else if (strcmp(*argv,"-www") == 0)
 541                         { www=1; }
 542                 else if (strcmp(*argv,"-WWW") == 0)
 543                         { www=2; }
 544                 else if (strcmp(*argv,"-no_ssl2") == 0)
 545                         { off|=SSL_OP_NO_SSLv2; }
 546                 else if (strcmp(*argv,"-no_ssl3") == 0)
 547                         { off|=SSL_OP_NO_SSLv3; }
 548                 else if (strcmp(*argv,"-no_tls1") == 0)
 549                         { off|=SSL_OP_NO_TLSv1; }
 550 #ifndef NO_SSL2
 551                 else if (strcmp(*argv,"-ssl2") == 0)
 552                         { meth=SSLv2_server_method(); }
 553 #endif
 554 #ifndef NO_SSL3
 555                 else if (strcmp(*argv,"-ssl3") == 0)
 556                         { meth=SSLv3_server_method(); }
 557 #endif
 558 #ifndef NO_TLS1
 559                 else if (strcmp(*argv,"-tls1") == 0)
 560                         { meth=TLSv1_server_method(); }
 561 #endif
 562                 else
 563                         {
 564                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 565                         badop=1;
 566                         break;
 567                         }
 568                 argc--;
 569                 argv++;
 570                 }
 571         if (badop)
 572                 {
 573 bad:
 574                 sv_usage();
 575                 goto end;
 576                 }
 577
 578         if (bio_s_out == NULL)
 579                 {
 580                 if (s_quiet && !s_debug)
 581                         {
 582                         bio_s_out=BIO_new(BIO_s_null());
 583                         }
 584                 else
 585                         {
 586                         if (bio_s_out == NULL)
 587                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 588                         }
 589                 }
 590
 591 #if !defined(NO_RSA) || !defined(NO_DSA)
 592         if (nocert)
 593 #endif
 594                 {
 595                 s_cert_file=NULL;
 596                 s_key_file=NULL;
 597                 s_dcert_file=NULL;
 598                 s_dkey_file=NULL;
 599                 }
 600
 601         SSL_load_error_strings();
 602         SSLeay_add_ssl_algorithms();
 603
 604         ctx=SSL_CTX_new(meth);
 605         if (ctx == NULL)
 606                 {
 607                 ERR_print_errors(bio_err);
 608                 goto end;
 609                 }
 610
 611         SSL_CTX_set_quiet_shutdown(ctx,1);
 612         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 613         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 614         SSL_CTX_set_options(ctx,off);
 615         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 616
 617         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 618
 619         SSL_CTX_sess_set_cache_size(ctx,128);
 620
 621 #if 0
 622         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 623 #endif
 624
 625 #if 0
 626         if (s_cert_file == NULL)
 627                 {
 628                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 629                 goto end;
 630                 }
 631 #endif
 632
 633         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 634                 (!SSL_CTX_set_default_verify_paths(ctx)))
 635                 {
 636                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 637                 ERR_print_errors(bio_err);
 638                 /* goto end; */
 639                 }
 640
 641 #ifndef NO_DH
 642         if (!no_dhe)
 643                 {
 644                 /* EAY EAY EAY evil hack */
 645                 dh=load_dh_param();
 646                 if (dh != NULL)
 647                         {
 648                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 649                         }
 650                 else
 651                         {
 652                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 653                         dh=get_dh512();
 654                         }
 655                 (void)BIO_flush(bio_s_out);
 656
 657                 SSL_CTX_set_tmp_dh(ctx,dh);
 658                 DH_free(dh);
 659                 }
 660 #endif
 661
 662         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 663                 goto end;
 664         if (s_dcert_file != NULL)
 665                 {
 666                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 667                         goto end;
 668                 }
 669
 670 #ifndef NO_RSA
 671 #if 1
 672         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 673 #else
 674         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 675                 {
 676                 RSA *rsa;
 677
 678                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 679                 BIO_flush(bio_s_out);
 680
 681                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 682
 683                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 684                         {
 685                         ERR_print_errors(bio_err);
 686                         goto end;
 687                         }
 688                 RSA_free(rsa);
 689                 BIO_printf(bio_s_out,"\n");
 690                 }
 691 #endif
 692 #endif
 693
 694         if (cipher != NULL)
 695                 SSL_CTX_set_cipher_list(ctx,cipher);
 696         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 697         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 698                 sizeof s_server_session_id_context);
 699
 700         SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 701
 702         BIO_printf(bio_s_out,"ACCEPT\n");
 703         if (www)
 704                 do_server(port,&accept_socket,www_body, context);
 705         else
 706                 do_server(port,&accept_socket,sv_body, context);
 707         print_stats(bio_s_out,ctx);
 708         ret=0;
 709 end:
 710         if (ctx != NULL) SSL_CTX_free(ctx);
 711         if (bio_s_out != NULL)
 712                 {
 713                 BIO_free(bio_s_out);
 714                 bio_s_out=NULL;
 715                 }
 716         EXIT(ret);
 717         }
 718
 719 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 720         {
 721         BIO_printf(bio,"%4ld items in the session cache\n",
 722                 SSL_CTX_sess_number(ssl_ctx));
 723         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 724                 SSL_CTX_sess_connect(ssl_ctx));
 725         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 726                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 727         BIO_printf(bio,"%4d client connects that finished\n",
 728                 SSL_CTX_sess_connect_good(ssl_ctx));
 729         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 730                 SSL_CTX_sess_accept(ssl_ctx));
 731         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 732                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 733         BIO_printf(bio,"%4d server accepts that finished\n",
 734                 SSL_CTX_sess_accept_good(ssl_ctx));
 735         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 736         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 737         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 738         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 739         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 740                 SSL_CTX_sess_cache_full(ssl_ctx),
 741                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 742         }
 743
 744 static int sv_body(char *hostname, int s, unsigned char *context)
 745         {
 746         char *buf=NULL;
 747         fd_set readfds;
 748         int ret=1,width;
 749         int k,i;
 750         unsigned long l;
 751         SSL *con=NULL;
 752         BIO *sbio;
 753
 754         if ((buf=Malloc(bufsize)) == NULL)
 755                 {
 756                 BIO_printf(bio_err,"out of memory\n");
 757                 goto err;
 758                 }
 759 #ifdef FIONBIO
 760         if (s_nbio)
 761                 {
 762                 unsigned long sl=1;
 763
 764                 if (!s_quiet)
 765                         BIO_printf(bio_err,"turning on non blocking io\n");
 766                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 767                         ERR_print_errors(bio_err);
 768                 }
 769 #endif
 770
 771         if (con == NULL) {
 772                 con=(SSL *)SSL_new(ctx);
 773                 if(context)
 774                       SSL_set_session_id_context(con, context,
 775                                                  strlen((char *)context));
 776         }
 777         SSL_clear(con);
 778
 779         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 780         if (s_nbio_test)
 781                 {
 782                 BIO *test;
 783
 784                 test=BIO_new(BIO_f_nbio_test());
 785                 sbio=BIO_push(test,sbio);
 786                 }
 787         SSL_set_bio(con,sbio,sbio);
 788         SSL_set_accept_state(con);
 789         /* SSL_set_fd(con,s); */
 790
 791         if (s_debug)
 792                 {
 793                 con->debug=1;
 794                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 795                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 796                 }
 797
 798         width=s+1;
 799         for (;;)
 800                 {
 801                 FD_ZERO(&readfds);
 802 #ifndef WINDOWS
 803                 FD_SET(fileno(stdin),&readfds);
 804 #endif
 805                 FD_SET(s,&readfds);
 806                 /* Note: under VMS with SOCKETSHR the second parameter is
 807                  * currently of type (int *) whereas under other systems
 808                  * it is (void *) if you don't have a cast it will choke
 809                  * the compiler: if you do have a cast then you can either
 810                  * go for (int *) or (void *).
 811                  */
 812                 i=select(width,(void *)&readfds,NULL,NULL,NULL);
 813                 if (i <= 0) continue;
 814                 if (FD_ISSET(fileno(stdin),&readfds))
 815                         {
 816 #ifdef APPS_CRLF
 817                         if (s_crlf)
 818                                 {
 819                                 int j, lf_num;
 820
 821                                 i=read(fileno(stdin), buf, bufsize/2);
 822                                 lf_num = 0;
 823                                 /* both loops are skipped when i <= 0 */
 824                                 for (j = 0; j < i; j++)
 825                                         if (buf[j] == '\n')
 826                                                 lf_num++;
 827                                 for (j = i-1; j >= 0; j--)
 828                                         {
 829                                         buf[j+lf_num] = buf[j];
 830                                         if (buf[j] == '\n')
 831                                                 {
 832                                                 lf_num--;
 833                                                 i++;
 834                                                 buf[j+lf_num] = '\r';
 835                                                 }
 836                                         }
 837                                 assert(lf_num == 0);
 838                                 }
 839                         else
 840 #endif
 841                                 i=read(fileno(stdin),buf,bufsize);
 842                         if (!s_quiet)
 843                                 {
 844                                 if ((i <= 0) || (buf[0] == 'Q'))
 845                                         {
 846                                         BIO_printf(bio_s_out,"DONE\n");
 847                                         SHUTDOWN(s);
 848                                         close_accept_socket();
 849                                         ret= -11;
 850                                         goto err;
 851                                         }
 852                                 if ((i <= 0) || (buf[0] == 'q'))
 853                                         {
 854                                         BIO_printf(bio_s_out,"DONE\n");
 855                                         SHUTDOWN(s);
 856         /*                              close_accept_socket();
 857                                         ret= -11;*/
 858                                         goto err;
 859                                         }
 860                                 if ((buf[0] == 'r') &&
 861                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 862                                         {
 863                                         SSL_renegotiate(con);
 864                                         i=SSL_do_handshake(con);
 865                                         printf("SSL_do_handshake -> %d\n",i);
 866                                         i=0; /*13; */
 867                                         continue;
 868                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 869                                         }
 870                                 if ((buf[0] == 'R') &&
 871                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 872                                         {
 873                                         SSL_set_verify(con,
 874                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
 875                                         SSL_renegotiate(con);
 876                                         i=SSL_do_handshake(con);
 877                                         printf("SSL_do_handshake -> %d\n",i);
 878                                         i=0; /* 13; */
 879                                         continue;
 880                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
 881                                         }
 882                                 if (buf[0] == 'P')
 883                                         {
 884                                         static char *str="Lets print some clear text\n";
 885                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
 886                                         }
 887                                 if (buf[0] == 'S')
 888                                         {
 889                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
 890                                         }
 891                                 }
 892 #ifdef CHARSET_EBCDIC
 893                         ebcdic2ascii(buf,buf,i);
 894 #endif
 895                         l=k=0;
 896                         for (;;)
 897                                 {
 898                                 /* should do a select for the write */
 899 #ifdef RENEG
 900 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
 901 #endif
 902                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
 903                                 switch (SSL_get_error(con,k))
 904                                         {
 905                                 case SSL_ERROR_NONE:
 906                                         break;
 907                                 case SSL_ERROR_WANT_WRITE:
 908                                 case SSL_ERROR_WANT_READ:
 909                                 case SSL_ERROR_WANT_X509_LOOKUP:
 910                                         BIO_printf(bio_s_out,"Write BLOCK\n");
 911                                         break;
 912                                 case SSL_ERROR_SYSCALL:
 913                                 case SSL_ERROR_SSL:
 914                                         BIO_printf(bio_s_out,"ERROR\n");
 915                                         ERR_print_errors(bio_err);
 916                                         ret=1;
 917                                         goto err;
 918                                         /* break; */
 919                                 case SSL_ERROR_ZERO_RETURN:
 920                                         BIO_printf(bio_s_out,"DONE\n");
 921                                         ret=1;
 922                                         goto err;
 923                                         }
 924                                 l+=k;
 925                                 i-=k;
 926                                 if (i <= 0) break;
 927                                 }
 928                         }
 929                 if (FD_ISSET(s,&readfds))
 930                         {
 931                         if (!SSL_is_init_finished(con))
 932                                 {
 933                                 i=init_ssl_connection(con);
 934
 935                                 if (i < 0)
 936                                         {
 937                                         ret=0;
 938                                         goto err;
 939                                         }
 940                                 else if (i == 0)
 941                                         {
 942                                         ret=1;
 943                                         goto err;
 944                                         }
 945                                 }
 946                         else
 947                                 {
 948 again:
 949                                 i=SSL_read(con,(char *)buf,bufsize);
 950                                 switch (SSL_get_error(con,i))
 951                                         {
 952                                 case SSL_ERROR_NONE:
 953 #ifdef CHARSET_EBCDIC
 954                                         ascii2ebcdic(buf,buf,i);
 955 #endif
 956                                         write(fileno(stdout),buf,
 957                                                 (unsigned int)i);
 958                                         if (SSL_pending(con)) goto again;
 959                                         break;
 960                                 case SSL_ERROR_WANT_WRITE:
 961                                 case SSL_ERROR_WANT_READ:
 962                                 case SSL_ERROR_WANT_X509_LOOKUP:
 963                                         BIO_printf(bio_s_out,"Read BLOCK\n");
 964                                         break;
 965                                 case SSL_ERROR_SYSCALL:
 966                                 case SSL_ERROR_SSL:
 967                                         BIO_printf(bio_s_out,"ERROR\n");
 968                                         ERR_print_errors(bio_err);
 969                                         ret=1;
 970                                         goto err;
 971                                 case SSL_ERROR_ZERO_RETURN:
 972                                         BIO_printf(bio_s_out,"DONE\n");
 973                                         ret=1;
 974                                         goto err;
 975                                         }
 976                                 }
 977                         }
 978                 }
 979 err:
 980         BIO_printf(bio_s_out,"shutting down SSL\n");
 981 #if 1
 982         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
 983 #else
 984         SSL_shutdown(con);
 985 #endif
 986         if (con != NULL) SSL_free(con);
 987         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
 988         if (buf != NULL)
 989                 {
 990                 memset(buf,0,bufsize);
 991                 Free(buf);
 992                 }
 993         if (ret >= 0)
 994                 BIO_printf(bio_s_out,"ACCEPT\n");
 995         return(ret);
 996         }
 997
 998 static void close_accept_socket(void)
 999         {
1000         BIO_printf(bio_err,"shutdown accept socket\n");
1001         if (accept_socket >= 0)
1002                 {
1003                 SHUTDOWN2(accept_socket);
1004                 }
1005         }
1006
1007 static int init_ssl_connection(SSL *con)
1008         {
1009         int i;
1010         const char *str;
1011         X509 *peer;
1012         long verify_error;
1013         MS_STATIC char buf[BUFSIZ];
1014
1015         if ((i=SSL_accept(con)) <= 0)
1016                 {
1017                 if (BIO_sock_should_retry(i))
1018                         {
1019                         BIO_printf(bio_s_out,"DELAY\n");
1020                         return(1);
1021                         }
1022
1023                 BIO_printf(bio_err,"ERROR\n");
1024                 verify_error=SSL_get_verify_result(con);
1025                 if (verify_error != X509_V_OK)
1026                         {
1027                         BIO_printf(bio_err,"verify error:%s\n",
1028                                 X509_verify_cert_error_string(verify_error));
1029                         }
1030                 else
1031                         ERR_print_errors(bio_err);
1032                 return(0);
1033                 }
1034
1035         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1036
1037         peer=SSL_get_peer_certificate(con);
1038         if (peer != NULL)
1039                 {
1040                 BIO_printf(bio_s_out,"Client certificate\n");
1041                 PEM_write_bio_X509(bio_s_out,peer);
1042                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1043                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1044                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1045                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1046                 X509_free(peer);
1047                 }
1048
1049         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1050                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1051         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1052         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1053         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1054         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1055                 TLS1_FLAGS_TLS_PADDING_BUG)
1056                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1057
1058         return(1);
1059         }
1060
1061 #ifndef NO_DH
1062 static DH *load_dh_param(void)
1063         {
1064         DH *ret=NULL;
1065         BIO *bio;
1066
1067         if ((bio=BIO_new_file(DH_PARAM,"r")) == NULL)
1068                 goto err;
1069         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1070 err:
1071         if (bio != NULL) BIO_free(bio);
1072         return(ret);
1073         }
1074 #endif
1075
1076 #if 0
1077 static int load_CA(SSL_CTX *ctx, char *file)
1078         {
1079         FILE *in;
1080         X509 *x=NULL;
1081
1082         if ((in=fopen(file,"r")) == NULL)
1083                 return(0);
1084
1085         for (;;)
1086                 {
1087                 if (PEM_read_X509(in,&x,NULL) == NULL)
1088                         break;
1089                 SSL_CTX_add_client_CA(ctx,x);
1090                 }
1091         if (x != NULL) X509_free(x);
1092         fclose(in);
1093         return(1);
1094         }
1095 #endif
1096
1097 static int www_body(char *hostname, int s, unsigned char *context)
1098         {
1099         char *buf=NULL;
1100         int ret=1;
1101         int i,j,k,blank,dot;
1102         struct stat st_buf;
1103         SSL *con;
1104         SSL_CIPHER *c;
1105         BIO *io,*ssl_bio,*sbio;
1106         long total_bytes;
1107
1108         buf=Malloc(bufsize);
1109         if (buf == NULL) return(0);
1110         io=BIO_new(BIO_f_buffer());
1111         ssl_bio=BIO_new(BIO_f_ssl());
1112         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1113
1114 #ifdef FIONBIO
1115         if (s_nbio)
1116                 {
1117                 unsigned long sl=1;
1118
1119                 if (!s_quiet)
1120                         BIO_printf(bio_err,"turning on non blocking io\n");
1121                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1122                         ERR_print_errors(bio_err);
1123                 }
1124 #endif
1125
1126         /* lets make the output buffer a reasonable size */
1127         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1128
1129         if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
1130         if(context) SSL_set_session_id_context(con, context,
1131                                                strlen((char *)context));
1132
1133         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1134         if (s_nbio_test)
1135                 {
1136                 BIO *test;
1137
1138                 test=BIO_new(BIO_f_nbio_test());
1139                 sbio=BIO_push(test,sbio);
1140                 }
1141         SSL_set_bio(con,sbio,sbio);
1142         SSL_set_accept_state(con);
1143
1144         /* SSL_set_fd(con,s); */
1145         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1146         BIO_push(io,ssl_bio);
1147 #ifdef CHARSET_EBCDIC
1148         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1149 #endif
1150
1151         if (s_debug)
1152                 {
1153                 con->debug=1;
1154                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1155                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1156                 }
1157
1158         blank=0;
1159         for (;;)
1160                 {
1161                 if (hack)
1162                         {
1163                         i=SSL_accept(con);
1164
1165                         switch (SSL_get_error(con,i))
1166                                 {
1167                         case SSL_ERROR_NONE:
1168                                 break;
1169                         case SSL_ERROR_WANT_WRITE:
1170                         case SSL_ERROR_WANT_READ:
1171                         case SSL_ERROR_WANT_X509_LOOKUP:
1172                                 continue;
1173                         case SSL_ERROR_SYSCALL:
1174                         case SSL_ERROR_SSL:
1175                         case SSL_ERROR_ZERO_RETURN:
1176                                 ret=1;
1177                                 goto err;
1178                                 /* break; */
1179                                 }
1180
1181                         SSL_renegotiate(con);
1182                         SSL_write(con,NULL,0);
1183                         }
1184
1185                 i=BIO_gets(io,buf,bufsize-1);
1186                 if (i < 0) /* error */
1187                         {
1188                         if (!BIO_should_retry(io))
1189                                 {
1190                                 if (!s_quiet)
1191                                         ERR_print_errors(bio_err);
1192                                 goto err;
1193                                 }
1194                         else
1195                                 {
1196                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1197 #ifndef MSDOS
1198                                 sleep(1);
1199 #endif
1200                                 continue;
1201                                 }
1202                         }
1203                 else if (i == 0) /* end of input */
1204                         {
1205                         ret=1;
1206                         goto end;
1207                         }
1208
1209                 /* else we have data */
1210                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1211                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1212                         {
1213                         char *p;
1214                         X509 *peer;
1215                         STACK_OF(SSL_CIPHER) *sk;
1216                         static char *space="                          ";
1217
1218                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1219                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1220                         BIO_puts(io,"<pre>\n");
1221 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1222                         BIO_puts(io,"\n");
1223                         for (i=0; i<local_argc; i++)
1224                                 {
1225                                 BIO_puts(io,local_argv[i]);
1226                                 BIO_write(io," ",1);
1227                                 }
1228                         BIO_puts(io,"\n");
1229
1230                         /* The following is evil and should not really
1231                          * be done */
1232                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1233                         sk=SSL_get_ciphers(con);
1234                         j=sk_SSL_CIPHER_num(sk);
1235                         for (i=0; i<j; i++)
1236                                 {
1237                                 c=sk_SSL_CIPHER_value(sk,i);
1238                                 BIO_printf(io,"%-11s:%-25s",
1239                                         SSL_CIPHER_get_version(c),
1240                                         SSL_CIPHER_get_name(c));
1241                                 if ((((i+1)%2) == 0) && (i+1 != j))
1242                                         BIO_puts(io,"\n");
1243                                 }
1244                         BIO_puts(io,"\n");
1245                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1246                         if (p != NULL)
1247                                 {
1248                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1249                                 j=i=0;
1250                                 while (*p)
1251                                         {
1252                                         if (*p == ':')
1253                                                 {
1254                                                 BIO_write(io,space,26-j);
1255                                                 i++;
1256                                                 j=0;
1257                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1258                                                 }
1259                                         else
1260                                                 {
1261                                                 BIO_write(io,p,1);
1262                                                 j++;
1263                                                 }
1264                                         p++;
1265                                         }
1266                                 BIO_puts(io,"\n");
1267                                 }
1268                         BIO_printf(io,((con->hit)
1269                                 ?"---\nReused, "
1270                                 :"---\nNew, "));
1271                         c=SSL_get_current_cipher(con);
1272                         BIO_printf(io,"%s, Cipher is %s\n",
1273                                 SSL_CIPHER_get_version(c),
1274                                 SSL_CIPHER_get_name(c));
1275                         SSL_SESSION_print(io,SSL_get_session(con));
1276                         BIO_printf(io,"---\n");
1277                         print_stats(io,SSL_get_SSL_CTX(con));
1278                         BIO_printf(io,"---\n");
1279                         peer=SSL_get_peer_certificate(con);
1280                         if (peer != NULL)
1281                                 {
1282                                 BIO_printf(io,"Client certificate\n");
1283                                 X509_print(io,peer);
1284                                 PEM_write_bio_X509(io,peer);
1285                                 }
1286                         else
1287                                 BIO_puts(io,"no client certificate available\n");
1288                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1289                         break;
1290                         }
1291                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1292                         {
1293                         BIO *file;
1294                         char *p,*e;
1295                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1296
1297                         /* skip the '/' */
1298                         p= &(buf[5]);
1299                         dot=0;
1300                         for (e=p; *e != '\0'; e++)
1301                                 {
1302                                 if (e[0] == ' ') break;
1303                                 if (    (e[0] == '.') &&
1304                                         (strncmp(&(e[-1]),"/../",4) == 0))
1305                                         dot=1;
1306                                 }
1307
1308
1309                         if (*e == '\0')
1310                                 {
1311                                 BIO_puts(io,text);
1312                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1313                                 break;
1314                                 }
1315                         *e='\0';
1316
1317                         if (dot)
1318                                 {
1319                                 BIO_puts(io,text);
1320                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1321                                 break;
1322                                 }
1323
1324                         if (*p == '/')
1325                                 {
1326                                 BIO_puts(io,text);
1327                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1328                                 break;
1329                                 }
1330
1331                         /* append if a directory lookup */
1332                         if (e[-1] == '/')
1333                                 strcat(p,"index.html");
1334
1335                         /* if a directory, do the index thang */
1336                         if (stat(p,&st_buf) < 0)
1337                                 {
1338                                 BIO_puts(io,text);
1339                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1340                                 ERR_print_errors(io);
1341                                 break;
1342                                 }
1343                         if (S_ISDIR(st_buf.st_mode))
1344                                 {
1345                                 strcat(p,"/index.html");
1346                                 }
1347
1348                         if ((file=BIO_new_file(p,"r")) == NULL)
1349                                 {
1350                                 BIO_puts(io,text);
1351                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1352                                 ERR_print_errors(io);
1353                                 break;
1354                                 }
1355
1356                         if (!s_quiet)
1357                                 BIO_printf(bio_err,"FILE:%s\n",p);
1358
1359                         i=strlen(p);
1360                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1361                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1362                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1363                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1364                         else
1365                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1366                         /* send the file */
1367                         total_bytes=0;
1368                         for (;;)
1369                                 {
1370                                 i=BIO_read(file,buf,bufsize);
1371                                 if (i <= 0) break;
1372
1373 #ifdef RENEG
1374                                 total_bytes+=i;
1375                                 fprintf(stderr,"%d\n",i);
1376                                 if (total_bytes > 3*1024)
1377                                         {
1378                                         total_bytes=0;
1379                                         fprintf(stderr,"RENEGOTIATE\n");
1380                                         SSL_renegotiate(con);
1381                                         }
1382 #endif
1383
1384                                 for (j=0; j<i; )
1385                                         {
1386 #ifdef RENEG
1387 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1388 #endif
1389                                         k=BIO_write(io,&(buf[j]),i-j);
1390                                         if (k <= 0)
1391                                                 {
1392                                                 if (!BIO_should_retry(io))
1393                                                         goto write_error;
1394                                                 else
1395                                                         {
1396                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1397                                                         }
1398                                                 }
1399                                         else
1400                                                 {
1401                                                 j+=k;
1402                                                 }
1403                                         }
1404                                 }
1405 write_error:
1406                         BIO_free(file);
1407                         break;
1408                         }
1409                 }
1410
1411         for (;;)
1412                 {
1413                 i=(int)BIO_flush(io);
1414                 if (i <= 0)
1415                         {
1416                         if (!BIO_should_retry(io))
1417                                 break;
1418                         }
1419                 else
1420                         break;
1421                 }
1422 end:
1423 #if 1
1424         /* make sure we re-use sessions */
1425         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1426 #else
1427         /* This kills performace */
1428 /*      SSL_shutdown(con); A shutdown gets sent in the
1429  *      BIO_free_all(io) procession */
1430 #endif
1431
1432 err:
1433
1434         if (ret >= 0)
1435                 BIO_printf(bio_s_out,"ACCEPT\n");
1436
1437         if (buf != NULL) Free(buf);
1438         if (io != NULL) BIO_free_all(io);
1439 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1440         return(ret);
1441         }
1442
1443 #ifndef NO_RSA
1444 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1445         {
1446         static RSA *rsa_tmp=NULL;
1447
1448         if (rsa_tmp == NULL)
1449                 {
1450                 if (!s_quiet)
1451                         {
1452                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1453                         (void)BIO_flush(bio_err);
1454                         }
1455                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1456                 if (!s_quiet)
1457                         {
1458                         BIO_printf(bio_err,"\n");
1459                         (void)BIO_flush(bio_err);
1460                         }
1461                 }
1462         return(rsa_tmp);
1463         }
1464 #endif