apps/s_server.c

   1 /* apps/s_server.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include <assert.h>
  60 #include <stdio.h>
  61 #include <stdlib.h>
  62 #include <string.h>
  63 #include <sys/types.h>
  64 #include <sys/stat.h>
  65 #include <openssl/opensslconf.h>
  66 #ifdef OPENSSL_NO_STDIO
  67 #define APPS_WIN16
  68 #endif
  69
  70 /* With IPv6, it looks like Digital has mixed up the proper order of
  71    recursive header file inclusion, resulting in the compiler complaining
  72    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
  73    is needed to have fileno() declared correctly...  So let's define u_int */
  74 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
  75 #define __U_INT
  76 typedef unsigned int u_int;
  77 #endif
  78
  79 #include <openssl/lhash.h>
  80 #include <openssl/bn.h>
  81 #define USE_SOCKETS
  82 #include "apps.h"
  83 #include <openssl/err.h>
  84 #include <openssl/pem.h>
  85 #include <openssl/x509.h>
  86 #include <openssl/ssl.h>
  87 #include <openssl/engine.h>
  88 #include "s_apps.h"
  89
  90 #ifdef OPENSSL_SYS_WINDOWS
  91 #include <conio.h>
  92 #endif
  93
  94 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
  95 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
  96 #undef FIONBIO
  97 #endif
  98
  99 #ifndef OPENSSL_NO_RSA
 100 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 101 #endif
 102 static int sv_body(char *hostname, int s, unsigned char *context);
 103 static int www_body(char *hostname, int s, unsigned char *context);
 104 static void close_accept_socket(void );
 105 static void sv_usage(void);
 106 static int init_ssl_connection(SSL *s);
 107 static void print_stats(BIO *bp,SSL_CTX *ctx);
 108 #ifndef OPENSSL_NO_DH
 109 static DH *load_dh_param(char *dhfile);
 110 static DH *get_dh512(void);
 111 #endif
 112 #ifdef MONOLITH
 113 static void s_server_init(void);
 114 #endif
 115
 116 #ifndef S_ISDIR
 117 # if defined(_S_IFMT) && defined(_S_IFDIR)
 118 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 119 # else
 120 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 121 # endif
 122 #endif
 123
 124 #ifndef OPENSSL_NO_DH
 125 static unsigned char dh512_p[]={
 126         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 127         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 128         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 129         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 130         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 131         0x47,0x74,0xE8,0x33,
 132         };
 133 static unsigned char dh512_g[]={
 134         0x02,
 135         };
 136
 137 static DH *get_dh512(void)
 138         {
 139         DH *dh=NULL;
 140
 141         if ((dh=DH_new()) == NULL) return(NULL);
 142         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 143         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 144         if ((dh->p == NULL) || (dh->g == NULL))
 145                 return(NULL);
 146         return(dh);
 147         }
 148 #endif
 149
 150 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 151
 152 #undef BUFSIZZ
 153 #define BUFSIZZ 16*1024
 154 static int bufsize=BUFSIZZ;
 155 static int accept_socket= -1;
 156
 157 #define TEST_CERT       "server.pem"
 158 #undef PROG
 159 #define PROG            s_server_main
 160
 161 extern int verify_depth;
 162
 163 static char *cipher=NULL;
 164 static int s_server_verify=SSL_VERIFY_NONE;
 165 static int s_server_session_id_context = 1; /* anything will do */
 166 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 167 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 168 #ifdef FIONBIO
 169 static int s_nbio=0;
 170 #endif
 171 static int s_nbio_test=0;
 172 int s_crlf=0;
 173 static SSL_CTX *ctx=NULL;
 174 static int www=0;
 175
 176 static BIO *bio_s_out=NULL;
 177 static int s_debug=0;
 178 static int s_quiet=0;
 179
 180 static int hack=0;
 181 static char *engine_id=NULL;
 182
 183 #ifdef MONOLITH
 184 static void s_server_init(void)
 185         {
 186         accept_socket=-1;
 187         cipher=NULL;
 188         s_server_verify=SSL_VERIFY_NONE;
 189         s_dcert_file=NULL;
 190         s_dkey_file=NULL;
 191         s_cert_file=TEST_CERT;
 192         s_key_file=NULL;
 193 #ifdef FIONBIO
 194         s_nbio=0;
 195 #endif
 196         s_nbio_test=0;
 197         ctx=NULL;
 198         www=0;
 199
 200         bio_s_out=NULL;
 201         s_debug=0;
 202         s_quiet=0;
 203         hack=0;
 204         engine_id=NULL;
 205         }
 206 #endif
 207
 208 static void sv_usage(void)
 209         {
 210         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 211         BIO_printf(bio_err,"\n");
 212         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 213         BIO_printf(bio_err," -context arg  - set session ID context\n");
 214         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 215         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 216         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 217         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 218         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
 219         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 220         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 221         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 222         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 223         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 224 #ifdef FIONBIO
 225         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 226 #endif
 227         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 228         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 229         BIO_printf(bio_err," -debug        - Print more output\n");
 230         BIO_printf(bio_err," -state        - Print the SSL states\n");
 231         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 232         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 233         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 234         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 235         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 236         BIO_printf(bio_err," -quiet        - No server output\n");
 237         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 238         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 239         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 240         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 241         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 242         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 243         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 244 #ifndef OPENSSL_NO_DH
 245         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 246 #endif
 247         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 248         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 249         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 250         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 251         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 252         }
 253
 254 static int local_argc=0;
 255 static char **local_argv;
 256
 257 #ifdef CHARSET_EBCDIC
 258 static int ebcdic_new(BIO *bi);
 259 static int ebcdic_free(BIO *a);
 260 static int ebcdic_read(BIO *b, char *out, int outl);
 261 static int ebcdic_write(BIO *b, char *in, int inl);
 262 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
 263 static int ebcdic_gets(BIO *bp, char *buf, int size);
 264 static int ebcdic_puts(BIO *bp, char *str);
 265
 266 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 267 static BIO_METHOD methods_ebcdic=
 268         {
 269         BIO_TYPE_EBCDIC_FILTER,
 270         "EBCDIC/ASCII filter",
 271         ebcdic_write,
 272         ebcdic_read,
 273         ebcdic_puts,
 274         ebcdic_gets,
 275         ebcdic_ctrl,
 276         ebcdic_new,
 277         ebcdic_free,
 278         };
 279
 280 typedef struct
 281 {
 282         size_t  alloced;
 283         char    buff[1];
 284 } EBCDIC_OUTBUFF;
 285
 286 BIO_METHOD *BIO_f_ebcdic_filter()
 287 {
 288         return(&methods_ebcdic);
 289 }
 290
 291 static int ebcdic_new(BIO *bi)
 292 {
 293         EBCDIC_OUTBUFF *wbuf;
 294
 295         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 296         wbuf->alloced = 1024;
 297         wbuf->buff[0] = '\0';
 298
 299         bi->ptr=(char *)wbuf;
 300         bi->init=1;
 301         bi->flags=0;
 302         return(1);
 303 }
 304
 305 static int ebcdic_free(BIO *a)
 306 {
 307         if (a == NULL) return(0);
 308         if (a->ptr != NULL)
 309                 OPENSSL_free(a->ptr);
 310         a->ptr=NULL;
 311         a->init=0;
 312         a->flags=0;
 313         return(1);
 314 }
 315
 316 static int ebcdic_read(BIO *b, char *out, int outl)
 317 {
 318         int ret=0;
 319
 320         if (out == NULL || outl == 0) return(0);
 321         if (b->next_bio == NULL) return(0);
 322
 323         ret=BIO_read(b->next_bio,out,outl);
 324         if (ret > 0)
 325                 ascii2ebcdic(out,out,ret);
 326         return(ret);
 327 }
 328
 329 static int ebcdic_write(BIO *b, char *in, int inl)
 330 {
 331         EBCDIC_OUTBUFF *wbuf;
 332         int ret=0;
 333         int num;
 334         unsigned char n;
 335
 336         if ((in == NULL) || (inl <= 0)) return(0);
 337         if (b->next_bio == NULL) return(0);
 338
 339         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 340
 341         if (inl > (num = wbuf->alloced))
 342         {
 343                 num = num + num;  /* double the size */
 344                 if (num < inl)
 345                         num = inl;
 346                 OPENSSL_free(wbuf);
 347                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 348
 349                 wbuf->alloced = num;
 350                 wbuf->buff[0] = '\0';
 351
 352                 b->ptr=(char *)wbuf;
 353         }
 354
 355         ebcdic2ascii(wbuf->buff, in, inl);
 356
 357         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 358
 359         return(ret);
 360 }
 361
 362 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
 363 {
 364         long ret;
 365
 366         if (b->next_bio == NULL) return(0);
 367         switch (cmd)
 368         {
 369         case BIO_CTRL_DUP:
 370                 ret=0L;
 371                 break;
 372         default:
 373                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 374                 break;
 375         }
 376         return(ret);
 377 }
 378
 379 static int ebcdic_gets(BIO *bp, char *buf, int size)
 380 {
 381         int i, ret;
 382         if (bp->next_bio == NULL) return(0);
 383 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 384         for (i=0; i<size-1; ++i)
 385         {
 386                 ret = ebcdic_read(bp,&buf[i],1);
 387                 if (ret <= 0)
 388                         break;
 389                 else if (buf[i] == '\n')
 390                 {
 391                         ++i;
 392                         break;
 393                 }
 394         }
 395         if (i < size)
 396                 buf[i] = '\0';
 397         return (ret < 0 && i == 0) ? ret : i;
 398 }
 399
 400 static int ebcdic_puts(BIO *bp, char *str)
 401 {
 402         if (bp->next_bio == NULL) return(0);
 403         return ebcdic_write(bp, str, strlen(str));
 404 }
 405 #endif
 406
 407 int MAIN(int, char **);
 408
 409 int MAIN(int argc, char *argv[])
 410         {
 411         short port=PORT;
 412         char *CApath=NULL,*CAfile=NULL;
 413         char *context = NULL;
 414         char *dhfile = NULL;
 415         int badop=0,bugs=0;
 416         int ret=1;
 417         int off=0;
 418         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 419         int state=0;
 420         SSL_METHOD *meth=NULL;
 421         ENGINE *e=NULL;
 422         char *inrand=NULL;
 423
 424 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 425         meth=SSLv23_server_method();
 426 #elif !defined(OPENSSL_NO_SSL3)
 427         meth=SSLv3_server_method();
 428 #elif !defined(OPENSSL_NO_SSL2)
 429         meth=SSLv2_server_method();
 430 #endif
 431
 432         local_argc=argc;
 433         local_argv=argv;
 434
 435         apps_startup();
 436 #ifdef MONOLITH
 437         s_server_init();
 438 #endif
 439
 440         if (bio_err == NULL)
 441                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 442
 443         verify_depth=0;
 444 #ifdef FIONBIO
 445         s_nbio=0;
 446 #endif
 447         s_nbio_test=0;
 448
 449         argc--;
 450         argv++;
 451
 452         while (argc >= 1)
 453                 {
 454                 if      ((strcmp(*argv,"-port") == 0) ||
 455                          (strcmp(*argv,"-accept") == 0))
 456                         {
 457                         if (--argc < 1) goto bad;
 458                         if (!extract_port(*(++argv),&port))
 459                                 goto bad;
 460                         }
 461                 else if (strcmp(*argv,"-verify") == 0)
 462                         {
 463                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 464                         if (--argc < 1) goto bad;
 465                         verify_depth=atoi(*(++argv));
 466                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 467                         }
 468                 else if (strcmp(*argv,"-Verify") == 0)
 469                         {
 470                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 471                                 SSL_VERIFY_CLIENT_ONCE;
 472                         if (--argc < 1) goto bad;
 473                         verify_depth=atoi(*(++argv));
 474                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 475                         }
 476                 else if (strcmp(*argv,"-context") == 0)
 477                         {
 478                         if (--argc < 1) goto bad;
 479                         context= *(++argv);
 480                         }
 481                 else if (strcmp(*argv,"-cert") == 0)
 482                         {
 483                         if (--argc < 1) goto bad;
 484                         s_cert_file= *(++argv);
 485                         }
 486                 else if (strcmp(*argv,"-key") == 0)
 487                         {
 488                         if (--argc < 1) goto bad;
 489                         s_key_file= *(++argv);
 490                         }
 491                 else if (strcmp(*argv,"-dhparam") == 0)
 492                         {
 493                         if (--argc < 1) goto bad;
 494                         dhfile = *(++argv);
 495                         }
 496                 else if (strcmp(*argv,"-dcert") == 0)
 497                         {
 498                         if (--argc < 1) goto bad;
 499                         s_dcert_file= *(++argv);
 500                         }
 501                 else if (strcmp(*argv,"-dkey") == 0)
 502                         {
 503                         if (--argc < 1) goto bad;
 504                         s_dkey_file= *(++argv);
 505                         }
 506                 else if (strcmp(*argv,"-nocert") == 0)
 507                         {
 508                         nocert=1;
 509                         }
 510                 else if (strcmp(*argv,"-CApath") == 0)
 511                         {
 512                         if (--argc < 1) goto bad;
 513                         CApath= *(++argv);
 514                         }
 515                 else if (strcmp(*argv,"-serverpref") == 0)
 516                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
 517                 else if (strcmp(*argv,"-cipher") == 0)
 518                         {
 519                         if (--argc < 1) goto bad;
 520                         cipher= *(++argv);
 521                         }
 522                 else if (strcmp(*argv,"-CAfile") == 0)
 523                         {
 524                         if (--argc < 1) goto bad;
 525                         CAfile= *(++argv);
 526                         }
 527 #ifdef FIONBIO
 528                 else if (strcmp(*argv,"-nbio") == 0)
 529                         { s_nbio=1; }
 530 #endif
 531                 else if (strcmp(*argv,"-nbio_test") == 0)
 532                         {
 533 #ifdef FIONBIO
 534                         s_nbio=1;
 535 #endif
 536                         s_nbio_test=1;
 537                         }
 538                 else if (strcmp(*argv,"-debug") == 0)
 539                         { s_debug=1; }
 540                 else if (strcmp(*argv,"-hack") == 0)
 541                         { hack=1; }
 542                 else if (strcmp(*argv,"-state") == 0)
 543                         { state=1; }
 544                 else if (strcmp(*argv,"-crlf") == 0)
 545                         { s_crlf=1; }
 546                 else if (strcmp(*argv,"-quiet") == 0)
 547                         { s_quiet=1; }
 548                 else if (strcmp(*argv,"-bugs") == 0)
 549                         { bugs=1; }
 550                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 551                         { no_tmp_rsa=1; }
 552                 else if (strcmp(*argv,"-no_dhe") == 0)
 553                         { no_dhe=1; }
 554                 else if (strcmp(*argv,"-www") == 0)
 555                         { www=1; }
 556                 else if (strcmp(*argv,"-WWW") == 0)
 557                         { www=2; }
 558                 else if (strcmp(*argv,"-no_ssl2") == 0)
 559                         { off|=SSL_OP_NO_SSLv2; }
 560                 else if (strcmp(*argv,"-no_ssl3") == 0)
 561                         { off|=SSL_OP_NO_SSLv3; }
 562                 else if (strcmp(*argv,"-no_tls1") == 0)
 563                         { off|=SSL_OP_NO_TLSv1; }
 564 #ifndef OPENSSL_NO_SSL2
 565                 else if (strcmp(*argv,"-ssl2") == 0)
 566                         { meth=SSLv2_server_method(); }
 567 #endif
 568 #ifndef OPENSSL_NO_SSL3
 569                 else if (strcmp(*argv,"-ssl3") == 0)
 570                         { meth=SSLv3_server_method(); }
 571 #endif
 572 #ifndef OPENSSL_NO_TLS1
 573                 else if (strcmp(*argv,"-tls1") == 0)
 574                         { meth=TLSv1_server_method(); }
 575 #endif
 576                 else if (strcmp(*argv,"-engine") == 0)
 577                         {
 578                         if (--argc < 1) goto bad;
 579                         engine_id= *(++argv);
 580                         }
 581                 else if (strcmp(*argv,"-rand") == 0)
 582                         {
 583                         if (--argc < 1) goto bad;
 584                         inrand= *(++argv);
 585                         }
 586                 else
 587                         {
 588                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 589                         badop=1;
 590                         break;
 591                         }
 592                 argc--;
 593                 argv++;
 594                 }
 595         if (badop)
 596                 {
 597 bad:
 598                 sv_usage();
 599                 goto end;
 600                 }
 601
 602         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 603                 && !RAND_status())
 604                 {
 605                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 606                 }
 607         if (inrand != NULL)
 608                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 609                         app_RAND_load_files(inrand));
 610
 611         if (bio_s_out == NULL)
 612                 {
 613                 if (s_quiet && !s_debug)
 614                         {
 615                         bio_s_out=BIO_new(BIO_s_null());
 616                         }
 617                 else
 618                         {
 619                         if (bio_s_out == NULL)
 620                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 621                         }
 622                 }
 623
 624 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA)
 625         if (nocert)
 626 #endif
 627                 {
 628                 s_cert_file=NULL;
 629                 s_key_file=NULL;
 630                 s_dcert_file=NULL;
 631                 s_dkey_file=NULL;
 632                 }
 633
 634         SSL_load_error_strings();
 635         OpenSSL_add_ssl_algorithms();
 636
 637         if (engine_id != NULL)
 638                 {
 639                 if((e = ENGINE_by_id(engine_id)) == NULL)
 640                         {
 641                         BIO_printf(bio_err,"invalid engine\n");
 642                         ERR_print_errors(bio_err);
 643                         goto end;
 644                         }
 645                 if (s_debug)
 646                         {
 647                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
 648                                 0, bio_err, 0);
 649                         }
 650                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
 651                         {
 652                         BIO_printf(bio_err,"can't use that engine\n");
 653                         ERR_print_errors(bio_err);
 654                         goto end;
 655                         }
 656                 BIO_printf(bio_err,"engine \"%s\" set.\n", engine_id);
 657                 ENGINE_free(e);
 658                 }
 659
 660         ctx=SSL_CTX_new(meth);
 661         if (ctx == NULL)
 662                 {
 663                 ERR_print_errors(bio_err);
 664                 goto end;
 665                 }
 666
 667         SSL_CTX_set_quiet_shutdown(ctx,1);
 668         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 669         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 670         SSL_CTX_set_options(ctx,off);
 671         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 672
 673         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 674
 675         SSL_CTX_sess_set_cache_size(ctx,128);
 676
 677 #if 0
 678         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 679 #endif
 680
 681 #if 0
 682         if (s_cert_file == NULL)
 683                 {
 684                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 685                 goto end;
 686                 }
 687 #endif
 688
 689         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 690                 (!SSL_CTX_set_default_verify_paths(ctx)))
 691                 {
 692                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 693                 ERR_print_errors(bio_err);
 694                 /* goto end; */
 695                 }
 696
 697 #ifndef OPENSSL_NO_DH
 698         if (!no_dhe)
 699                 {
 700                 DH *dh=NULL;
 701
 702                 if (dhfile)
 703                         dh = load_dh_param(dhfile);
 704                 else if (s_cert_file)
 705                         dh = load_dh_param(s_cert_file);
 706
 707                 if (dh != NULL)
 708                         {
 709                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 710                         }
 711                 else
 712                         {
 713                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 714                         dh=get_dh512();
 715                         }
 716                 (void)BIO_flush(bio_s_out);
 717
 718                 SSL_CTX_set_tmp_dh(ctx,dh);
 719                 DH_free(dh);
 720                 }
 721 #endif
 722
 723         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 724                 goto end;
 725         if (s_dcert_file != NULL)
 726                 {
 727                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 728                         goto end;
 729                 }
 730
 731 #ifndef OPENSSL_NO_RSA
 732 #if 1
 733         if (!no_tmp_rsa)
 734                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 735 #else
 736         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 737                 {
 738                 RSA *rsa;
 739
 740                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 741                 BIO_flush(bio_s_out);
 742
 743                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 744
 745                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 746                         {
 747                         ERR_print_errors(bio_err);
 748                         goto end;
 749                         }
 750                 RSA_free(rsa);
 751                 BIO_printf(bio_s_out,"\n");
 752                 }
 753 #endif
 754 #endif
 755
 756         if (cipher != NULL)
 757                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 758                 BIO_printf(bio_err,"error setting cipher list\n");
 759                 ERR_print_errors(bio_err);
 760                 goto end;
 761         }
 762         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 763         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 764                 sizeof s_server_session_id_context);
 765
 766         if (CAfile != NULL)
 767             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 768
 769         BIO_printf(bio_s_out,"ACCEPT\n");
 770         if (www)
 771                 do_server(port,&accept_socket,www_body, context);
 772         else
 773                 do_server(port,&accept_socket,sv_body, context);
 774         print_stats(bio_s_out,ctx);
 775         ret=0;
 776 end:
 777         if (ctx != NULL) SSL_CTX_free(ctx);
 778         if (bio_s_out != NULL)
 779                 {
 780                 BIO_free(bio_s_out);
 781                 bio_s_out=NULL;
 782                 }
 783         EXIT(ret);
 784         }
 785
 786 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 787         {
 788         BIO_printf(bio,"%4ld items in the session cache\n",
 789                 SSL_CTX_sess_number(ssl_ctx));
 790         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 791                 SSL_CTX_sess_connect(ssl_ctx));
 792         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 793                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 794         BIO_printf(bio,"%4d client connects that finished\n",
 795                 SSL_CTX_sess_connect_good(ssl_ctx));
 796         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 797                 SSL_CTX_sess_accept(ssl_ctx));
 798         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 799                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 800         BIO_printf(bio,"%4d server accepts that finished\n",
 801                 SSL_CTX_sess_accept_good(ssl_ctx));
 802         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 803         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 804         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 805         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 806         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 807                 SSL_CTX_sess_cache_full(ssl_ctx),
 808                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 809         }
 810
 811 static int sv_body(char *hostname, int s, unsigned char *context)
 812         {
 813         char *buf=NULL;
 814         fd_set readfds;
 815         int ret=1,width;
 816         int k,i;
 817         unsigned long l;
 818         SSL *con=NULL;
 819         BIO *sbio;
 820 #ifdef OPENSSL_SYS_WINDOWS
 821         struct timeval tv;
 822 #endif
 823
 824         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
 825                 {
 826                 BIO_printf(bio_err,"out of memory\n");
 827                 goto err;
 828                 }
 829 #ifdef FIONBIO
 830         if (s_nbio)
 831                 {
 832                 unsigned long sl=1;
 833
 834                 if (!s_quiet)
 835                         BIO_printf(bio_err,"turning on non blocking io\n");
 836                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 837                         ERR_print_errors(bio_err);
 838                 }
 839 #endif
 840
 841         if (con == NULL) {
 842                 con=SSL_new(ctx);
 843 #ifndef OPENSSL_NO_KRB5
 844                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
 845                         {
 846                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
 847                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
 848                         }
 849 #endif  /* OPENSSL_NO_KRB5 */
 850                 if(context)
 851                       SSL_set_session_id_context(con, context,
 852                                                  strlen((char *)context));
 853         }
 854         SSL_clear(con);
 855
 856         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 857         if (s_nbio_test)
 858                 {
 859                 BIO *test;
 860
 861                 test=BIO_new(BIO_f_nbio_test());
 862                 sbio=BIO_push(test,sbio);
 863                 }
 864         SSL_set_bio(con,sbio,sbio);
 865         SSL_set_accept_state(con);
 866         /* SSL_set_fd(con,s); */
 867
 868         if (s_debug)
 869                 {
 870                 con->debug=1;
 871                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 872                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 873                 }
 874
 875         width=s+1;
 876         for (;;)
 877                 {
 878                 int read_from_terminal;
 879                 int read_from_sslcon;
 880
 881                 read_from_terminal = 0;
 882                 read_from_sslcon = SSL_pending(con);
 883
 884                 if (!read_from_sslcon)
 885                         {
 886                         FD_ZERO(&readfds);
 887 #ifndef OPENSSL_SYS_WINDOWS
 888                         FD_SET(fileno(stdin),&readfds);
 889 #endif
 890                         FD_SET(s,&readfds);
 891                         /* Note: under VMS with SOCKETSHR the second parameter is
 892                          * currently of type (int *) whereas under other systems
 893                          * it is (void *) if you don't have a cast it will choke
 894                          * the compiler: if you do have a cast then you can either
 895                          * go for (int *) or (void *).
 896                          */
 897 #ifdef OPENSSL_SYS_WINDOWS
 898                         /* Under Windows we can't select on stdin: only
 899                          * on sockets. As a workaround we timeout the select every
 900                          * second and check for any keypress. In a proper Windows
 901                          * application we wouldn't do this because it is inefficient.
 902                          */
 903                         tv.tv_sec = 1;
 904                         tv.tv_usec = 0;
 905                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
 906                         if((i < 0) || (!i && !_kbhit() ) )continue;
 907                         if(_kbhit())
 908                                 read_from_terminal = 1;
 909 #else
 910                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
 911                         if (i <= 0) continue;
 912                         if (FD_ISSET(fileno(stdin),&readfds))
 913                                 read_from_terminal = 1;
 914 #endif
 915                         if (FD_ISSET(s,&readfds))
 916                                 read_from_sslcon = 1;
 917                         }
 918                 if (read_from_terminal)
 919                         {
 920                         if (s_crlf)
 921                                 {
 922                                 int j, lf_num;
 923
 924                                 i=read(fileno(stdin), buf, bufsize/2);
 925                                 lf_num = 0;
 926                                 /* both loops are skipped when i <= 0 */
 927                                 for (j = 0; j < i; j++)
 928                                         if (buf[j] == '\n')
 929                                                 lf_num++;
 930                                 for (j = i-1; j >= 0; j--)
 931                                         {
 932                                         buf[j+lf_num] = buf[j];
 933                                         if (buf[j] == '\n')
 934                                                 {
 935                                                 lf_num--;
 936                                                 i++;
 937                                                 buf[j+lf_num] = '\r';
 938                                                 }
 939                                         }
 940                                 assert(lf_num == 0);
 941                                 }
 942                         else
 943                                 i=read(fileno(stdin),buf,bufsize);
 944                         if (!s_quiet)
 945                                 {
 946                                 if ((i <= 0) || (buf[0] == 'Q'))
 947                                         {
 948                                         BIO_printf(bio_s_out,"DONE\n");
 949                                         SHUTDOWN(s);
 950                                         close_accept_socket();
 951                                         ret= -11;
 952                                         goto err;
 953                                         }
 954                                 if ((i <= 0) || (buf[0] == 'q'))
 955                                         {
 956                                         BIO_printf(bio_s_out,"DONE\n");
 957                                         SHUTDOWN(s);
 958         /*                              close_accept_socket();
 959                                         ret= -11;*/
 960                                         goto err;
 961                                         }
 962                                 if ((buf[0] == 'r') &&
 963                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 964                                         {
 965                                         SSL_renegotiate(con);
 966                                         i=SSL_do_handshake(con);
 967                                         printf("SSL_do_handshake -> %d\n",i);
 968                                         i=0; /*13; */
 969                                         continue;
 970                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 971                                         }
 972                                 if ((buf[0] == 'R') &&
 973                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 974                                         {
 975                                         SSL_set_verify(con,
 976                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
 977                                         SSL_renegotiate(con);
 978                                         i=SSL_do_handshake(con);
 979                                         printf("SSL_do_handshake -> %d\n",i);
 980                                         i=0; /* 13; */
 981                                         continue;
 982                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
 983                                         }
 984                                 if (buf[0] == 'P')
 985                                         {
 986                                         static char *str="Lets print some clear text\n";
 987                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
 988                                         }
 989                                 if (buf[0] == 'S')
 990                                         {
 991                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
 992                                         }
 993                                 }
 994 #ifdef CHARSET_EBCDIC
 995                         ebcdic2ascii(buf,buf,i);
 996 #endif
 997                         l=k=0;
 998                         for (;;)
 999                                 {
1000                                 /* should do a select for the write */
1001 #ifdef RENEG
1002 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1003 #endif
1004                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1005                                 switch (SSL_get_error(con,k))
1006                                         {
1007                                 case SSL_ERROR_NONE:
1008                                         break;
1009                                 case SSL_ERROR_WANT_WRITE:
1010                                 case SSL_ERROR_WANT_READ:
1011                                 case SSL_ERROR_WANT_X509_LOOKUP:
1012                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1013                                         break;
1014                                 case SSL_ERROR_SYSCALL:
1015                                 case SSL_ERROR_SSL:
1016                                         BIO_printf(bio_s_out,"ERROR\n");
1017                                         ERR_print_errors(bio_err);
1018                                         ret=1;
1019                                         goto err;
1020                                         /* break; */
1021                                 case SSL_ERROR_ZERO_RETURN:
1022                                         BIO_printf(bio_s_out,"DONE\n");
1023                                         ret=1;
1024                                         goto err;
1025                                         }
1026                                 l+=k;
1027                                 i-=k;
1028                                 if (i <= 0) break;
1029                                 }
1030                         }
1031                 if (read_from_sslcon)
1032                         {
1033                         if (!SSL_is_init_finished(con))
1034                                 {
1035                                 i=init_ssl_connection(con);
1036
1037                                 if (i < 0)
1038                                         {
1039                                         ret=0;
1040                                         goto err;
1041                                         }
1042                                 else if (i == 0)
1043                                         {
1044                                         ret=1;
1045                                         goto err;
1046                                         }
1047                                 }
1048                         else
1049                                 {
1050 again:
1051                                 i=SSL_read(con,(char *)buf,bufsize);
1052                                 switch (SSL_get_error(con,i))
1053                                         {
1054                                 case SSL_ERROR_NONE:
1055 #ifdef CHARSET_EBCDIC
1056                                         ascii2ebcdic(buf,buf,i);
1057 #endif
1058                                         write(fileno(stdout),buf,
1059                                                 (unsigned int)i);
1060                                         if (SSL_pending(con)) goto again;
1061                                         break;
1062                                 case SSL_ERROR_WANT_WRITE:
1063                                 case SSL_ERROR_WANT_READ:
1064                                 case SSL_ERROR_WANT_X509_LOOKUP:
1065                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1066                                         break;
1067                                 case SSL_ERROR_SYSCALL:
1068                                 case SSL_ERROR_SSL:
1069                                         BIO_printf(bio_s_out,"ERROR\n");
1070                                         ERR_print_errors(bio_err);
1071                                         ret=1;
1072                                         goto err;
1073                                 case SSL_ERROR_ZERO_RETURN:
1074                                         BIO_printf(bio_s_out,"DONE\n");
1075                                         ret=1;
1076                                         goto err;
1077                                         }
1078                                 }
1079                         }
1080                 }
1081 err:
1082         BIO_printf(bio_s_out,"shutting down SSL\n");
1083 #if 1
1084         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1085 #else
1086         SSL_shutdown(con);
1087 #endif
1088         if (con != NULL) SSL_free(con);
1089         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1090         if (buf != NULL)
1091                 {
1092                 memset(buf,0,bufsize);
1093                 OPENSSL_free(buf);
1094                 }
1095         if (ret >= 0)
1096                 BIO_printf(bio_s_out,"ACCEPT\n");
1097         return(ret);
1098         }
1099
1100 static void close_accept_socket(void)
1101         {
1102         BIO_printf(bio_err,"shutdown accept socket\n");
1103         if (accept_socket >= 0)
1104                 {
1105                 SHUTDOWN2(accept_socket);
1106                 }
1107         }
1108
1109 static int init_ssl_connection(SSL *con)
1110         {
1111         int i;
1112         const char *str;
1113         X509 *peer;
1114         long verify_error;
1115         MS_STATIC char buf[BUFSIZ];
1116
1117         if ((i=SSL_accept(con)) <= 0)
1118                 {
1119                 if (BIO_sock_should_retry(i))
1120                         {
1121                         BIO_printf(bio_s_out,"DELAY\n");
1122                         return(1);
1123                         }
1124
1125                 BIO_printf(bio_err,"ERROR\n");
1126                 verify_error=SSL_get_verify_result(con);
1127                 if (verify_error != X509_V_OK)
1128                         {
1129                         BIO_printf(bio_err,"verify error:%s\n",
1130                                 X509_verify_cert_error_string(verify_error));
1131                         }
1132                 else
1133                         ERR_print_errors(bio_err);
1134                 return(0);
1135                 }
1136
1137         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1138
1139         peer=SSL_get_peer_certificate(con);
1140         if (peer != NULL)
1141                 {
1142                 BIO_printf(bio_s_out,"Client certificate\n");
1143                 PEM_write_bio_X509(bio_s_out,peer);
1144                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1145                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1146                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1147                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1148                 X509_free(peer);
1149                 }
1150
1151         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1152                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1153         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1154         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1155         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1156         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1157                 TLS1_FLAGS_TLS_PADDING_BUG)
1158                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1159
1160         return(1);
1161         }
1162
1163 #ifndef OPENSSL_NO_DH
1164 static DH *load_dh_param(char *dhfile)
1165         {
1166         DH *ret=NULL;
1167         BIO *bio;
1168
1169         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1170                 goto err;
1171         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1172 err:
1173         if (bio != NULL) BIO_free(bio);
1174         return(ret);
1175         }
1176 #endif
1177
1178 #if 0
1179 static int load_CA(SSL_CTX *ctx, char *file)
1180         {
1181         FILE *in;
1182         X509 *x=NULL;
1183
1184         if ((in=fopen(file,"r")) == NULL)
1185                 return(0);
1186
1187         for (;;)
1188                 {
1189                 if (PEM_read_X509(in,&x,NULL) == NULL)
1190                         break;
1191                 SSL_CTX_add_client_CA(ctx,x);
1192                 }
1193         if (x != NULL) X509_free(x);
1194         fclose(in);
1195         return(1);
1196         }
1197 #endif
1198
1199 static int www_body(char *hostname, int s, unsigned char *context)
1200         {
1201         char *buf=NULL;
1202         int ret=1;
1203         int i,j,k,blank,dot;
1204         struct stat st_buf;
1205         SSL *con;
1206         SSL_CIPHER *c;
1207         BIO *io,*ssl_bio,*sbio;
1208         long total_bytes;
1209
1210         buf=OPENSSL_malloc(bufsize);
1211         if (buf == NULL) return(0);
1212         io=BIO_new(BIO_f_buffer());
1213         ssl_bio=BIO_new(BIO_f_ssl());
1214         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1215
1216 #ifdef FIONBIO
1217         if (s_nbio)
1218                 {
1219                 unsigned long sl=1;
1220
1221                 if (!s_quiet)
1222                         BIO_printf(bio_err,"turning on non blocking io\n");
1223                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1224                         ERR_print_errors(bio_err);
1225                 }
1226 #endif
1227
1228         /* lets make the output buffer a reasonable size */
1229         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1230
1231         if ((con=SSL_new(ctx)) == NULL) goto err;
1232         if(context) SSL_set_session_id_context(con, context,
1233                                                strlen((char *)context));
1234
1235         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1236         if (s_nbio_test)
1237                 {
1238                 BIO *test;
1239
1240                 test=BIO_new(BIO_f_nbio_test());
1241                 sbio=BIO_push(test,sbio);
1242                 }
1243         SSL_set_bio(con,sbio,sbio);
1244         SSL_set_accept_state(con);
1245
1246         /* SSL_set_fd(con,s); */
1247         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1248         BIO_push(io,ssl_bio);
1249 #ifdef CHARSET_EBCDIC
1250         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1251 #endif
1252
1253         if (s_debug)
1254                 {
1255                 con->debug=1;
1256                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1257                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1258                 }
1259
1260         blank=0;
1261         for (;;)
1262                 {
1263                 if (hack)
1264                         {
1265                         i=SSL_accept(con);
1266
1267                         switch (SSL_get_error(con,i))
1268                                 {
1269                         case SSL_ERROR_NONE:
1270                                 break;
1271                         case SSL_ERROR_WANT_WRITE:
1272                         case SSL_ERROR_WANT_READ:
1273                         case SSL_ERROR_WANT_X509_LOOKUP:
1274                                 continue;
1275                         case SSL_ERROR_SYSCALL:
1276                         case SSL_ERROR_SSL:
1277                         case SSL_ERROR_ZERO_RETURN:
1278                                 ret=1;
1279                                 goto err;
1280                                 /* break; */
1281                                 }
1282
1283                         SSL_renegotiate(con);
1284                         SSL_write(con,NULL,0);
1285                         }
1286
1287                 i=BIO_gets(io,buf,bufsize-1);
1288                 if (i < 0) /* error */
1289                         {
1290                         if (!BIO_should_retry(io))
1291                                 {
1292                                 if (!s_quiet)
1293                                         ERR_print_errors(bio_err);
1294                                 goto err;
1295                                 }
1296                         else
1297                                 {
1298                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1299 #ifndef OPENSSL_SYS_MSDOS
1300                                 sleep(1);
1301 #endif
1302                                 continue;
1303                                 }
1304                         }
1305                 else if (i == 0) /* end of input */
1306                         {
1307                         ret=1;
1308                         goto end;
1309                         }
1310
1311                 /* else we have data */
1312                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1313                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1314                         {
1315                         char *p;
1316                         X509 *peer;
1317                         STACK_OF(SSL_CIPHER) *sk;
1318                         static char *space="                          ";
1319
1320                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1321                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1322                         BIO_puts(io,"<pre>\n");
1323 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1324                         BIO_puts(io,"\n");
1325                         for (i=0; i<local_argc; i++)
1326                                 {
1327                                 BIO_puts(io,local_argv[i]);
1328                                 BIO_write(io," ",1);
1329                                 }
1330                         BIO_puts(io,"\n");
1331
1332                         /* The following is evil and should not really
1333                          * be done */
1334                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1335                         sk=SSL_get_ciphers(con);
1336                         j=sk_SSL_CIPHER_num(sk);
1337                         for (i=0; i<j; i++)
1338                                 {
1339                                 c=sk_SSL_CIPHER_value(sk,i);
1340                                 BIO_printf(io,"%-11s:%-25s",
1341                                         SSL_CIPHER_get_version(c),
1342                                         SSL_CIPHER_get_name(c));
1343                                 if ((((i+1)%2) == 0) && (i+1 != j))
1344                                         BIO_puts(io,"\n");
1345                                 }
1346                         BIO_puts(io,"\n");
1347                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1348                         if (p != NULL)
1349                                 {
1350                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1351                                 j=i=0;
1352                                 while (*p)
1353                                         {
1354                                         if (*p == ':')
1355                                                 {
1356                                                 BIO_write(io,space,26-j);
1357                                                 i++;
1358                                                 j=0;
1359                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1360                                                 }
1361                                         else
1362                                                 {
1363                                                 BIO_write(io,p,1);
1364                                                 j++;
1365                                                 }
1366                                         p++;
1367                                         }
1368                                 BIO_puts(io,"\n");
1369                                 }
1370                         BIO_printf(io,((con->hit)
1371                                 ?"---\nReused, "
1372                                 :"---\nNew, "));
1373                         c=SSL_get_current_cipher(con);
1374                         BIO_printf(io,"%s, Cipher is %s\n",
1375                                 SSL_CIPHER_get_version(c),
1376                                 SSL_CIPHER_get_name(c));
1377                         SSL_SESSION_print(io,SSL_get_session(con));
1378                         BIO_printf(io,"---\n");
1379                         print_stats(io,SSL_get_SSL_CTX(con));
1380                         BIO_printf(io,"---\n");
1381                         peer=SSL_get_peer_certificate(con);
1382                         if (peer != NULL)
1383                                 {
1384                                 BIO_printf(io,"Client certificate\n");
1385                                 X509_print(io,peer);
1386                                 PEM_write_bio_X509(io,peer);
1387                                 }
1388                         else
1389                                 BIO_puts(io,"no client certificate available\n");
1390                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1391                         break;
1392                         }
1393                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1394                         {
1395                         BIO *file;
1396                         char *p,*e;
1397                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1398
1399                         /* skip the '/' */
1400                         p= &(buf[5]);
1401                         dot=0;
1402                         for (e=p; *e != '\0'; e++)
1403                                 {
1404                                 if (e[0] == ' ') break;
1405                                 if (    (e[0] == '.') &&
1406                                         (strncmp(&(e[-1]),"/../",4) == 0))
1407                                         dot=1;
1408                                 }
1409
1410
1411                         if (*e == '\0')
1412                                 {
1413                                 BIO_puts(io,text);
1414                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1415                                 break;
1416                                 }
1417                         *e='\0';
1418
1419                         if (dot)
1420                                 {
1421                                 BIO_puts(io,text);
1422                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1423                                 break;
1424                                 }
1425
1426                         if (*p == '/')
1427                                 {
1428                                 BIO_puts(io,text);
1429                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1430                                 break;
1431                                 }
1432
1433                         /* append if a directory lookup */
1434                         if (e[-1] == '/')
1435                                 strcat(p,"index.html");
1436
1437                         /* if a directory, do the index thang */
1438                         if (stat(p,&st_buf) < 0)
1439                                 {
1440                                 BIO_puts(io,text);
1441                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1442                                 ERR_print_errors(io);
1443                                 break;
1444                                 }
1445                         if (S_ISDIR(st_buf.st_mode))
1446                                 {
1447                                 strcat(p,"/index.html");
1448                                 }
1449
1450                         if ((file=BIO_new_file(p,"r")) == NULL)
1451                                 {
1452                                 BIO_puts(io,text);
1453                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1454                                 ERR_print_errors(io);
1455                                 break;
1456                                 }
1457
1458                         if (!s_quiet)
1459                                 BIO_printf(bio_err,"FILE:%s\n",p);
1460
1461                         i=strlen(p);
1462                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1463                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1464                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1465                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1466                         else
1467                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1468                         /* send the file */
1469                         total_bytes=0;
1470                         for (;;)
1471                                 {
1472                                 i=BIO_read(file,buf,bufsize);
1473                                 if (i <= 0) break;
1474
1475 #ifdef RENEG
1476                                 total_bytes+=i;
1477                                 fprintf(stderr,"%d\n",i);
1478                                 if (total_bytes > 3*1024)
1479                                         {
1480                                         total_bytes=0;
1481                                         fprintf(stderr,"RENEGOTIATE\n");
1482                                         SSL_renegotiate(con);
1483                                         }
1484 #endif
1485
1486                                 for (j=0; j<i; )
1487                                         {
1488 #ifdef RENEG
1489 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1490 #endif
1491                                         k=BIO_write(io,&(buf[j]),i-j);
1492                                         if (k <= 0)
1493                                                 {
1494                                                 if (!BIO_should_retry(io))
1495                                                         goto write_error;
1496                                                 else
1497                                                         {
1498                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1499                                                         }
1500                                                 }
1501                                         else
1502                                                 {
1503                                                 j+=k;
1504                                                 }
1505                                         }
1506                                 }
1507 write_error:
1508                         BIO_free(file);
1509                         break;
1510                         }
1511                 }
1512
1513         for (;;)
1514                 {
1515                 i=(int)BIO_flush(io);
1516                 if (i <= 0)
1517                         {
1518                         if (!BIO_should_retry(io))
1519                                 break;
1520                         }
1521                 else
1522                         break;
1523                 }
1524 end:
1525 #if 1
1526         /* make sure we re-use sessions */
1527         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1528 #else
1529         /* This kills performance */
1530 /*      SSL_shutdown(con); A shutdown gets sent in the
1531  *      BIO_free_all(io) procession */
1532 #endif
1533
1534 err:
1535
1536         if (ret >= 0)
1537                 BIO_printf(bio_s_out,"ACCEPT\n");
1538
1539         if (buf != NULL) OPENSSL_free(buf);
1540         if (io != NULL) BIO_free_all(io);
1541 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1542         return(ret);
1543         }
1544
1545 #ifndef OPENSSL_NO_RSA
1546 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1547         {
1548         static RSA *rsa_tmp=NULL;
1549
1550         if (rsa_tmp == NULL)
1551                 {
1552                 if (!s_quiet)
1553                         {
1554                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1555                         (void)BIO_flush(bio_err);
1556                         }
1557                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1558                 if (!s_quiet)
1559                         {
1560                         BIO_printf(bio_err,"\n");
1561                         (void)BIO_flush(bio_err);
1562                         }
1563                 }
1564         return(rsa_tmp);
1565         }
1566 #endif