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