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