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