crypto/openssl-0.9.7d/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  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111
 112 #include <assert.h>
 113 #include <stdio.h>
 114 #include <stdlib.h>
 115 #include <string.h>
 116 #include <sys/types.h>
 117 #include <sys/stat.h>
 118 #include <openssl/e_os2.h>
 119 #ifdef OPENSSL_NO_STDIO
 120 #define APPS_WIN16
 121 #endif
 122
 123 /* With IPv6, it looks like Digital has mixed up the proper order of
 124    recursive header file inclusion, resulting in the compiler complaining
 125    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 126    is needed to have fileno() declared correctly...  So let's define u_int */
 127 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 128 #define __U_INT
 129 typedef unsigned int u_int;
 130 #endif
 131
 132 #include <openssl/lhash.h>
 133 #include <openssl/bn.h>
 134 #define USE_SOCKETS
 135 #include "apps.h"
 136 #include <openssl/err.h>
 137 #include <openssl/pem.h>
 138 #include <openssl/x509.h>
 139 #include <openssl/ssl.h>
 140 #include <openssl/rand.h>
 141 #include "s_apps.h"
 142
 143 #ifdef OPENSSL_SYS_WINCE
 144 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 145 #ifdef fileno
 146 #undef fileno
 147 #endif
 148 #define fileno(a) (int)_fileno(a)
 149 #endif
 150
 151 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 152 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 153 #undef FIONBIO
 154 #endif
 155
 156 #ifndef OPENSSL_NO_RSA
 157 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 158 #endif
 159 static int sv_body(char *hostname, int s, unsigned char *context);
 160 static int www_body(char *hostname, int s, unsigned char *context);
 161 static void close_accept_socket(void );
 162 static void sv_usage(void);
 163 static int init_ssl_connection(SSL *s);
 164 static void print_stats(BIO *bp,SSL_CTX *ctx);
 165 static int generate_session_id(const SSL *ssl, unsigned char *id,
 166                                 unsigned int *id_len);
 167 #ifndef OPENSSL_NO_DH
 168 static DH *load_dh_param(char *dhfile);
 169 static DH *get_dh512(void);
 170 #endif
 171 #ifdef MONOLITH
 172 static void s_server_init(void);
 173 #endif
 174
 175 #ifndef S_ISDIR
 176 # if defined(_S_IFMT) && defined(_S_IFDIR)
 177 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 178 # else
 179 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 180 # endif
 181 #endif
 182
 183 #ifndef OPENSSL_NO_DH
 184 static unsigned char dh512_p[]={
 185         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 186         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 187         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 188         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 189         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 190         0x47,0x74,0xE8,0x33,
 191         };
 192 static unsigned char dh512_g[]={
 193         0x02,
 194         };
 195
 196 static DH *get_dh512(void)
 197         {
 198         DH *dh=NULL;
 199
 200         if ((dh=DH_new()) == NULL) return(NULL);
 201         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 202         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 203         if ((dh->p == NULL) || (dh->g == NULL))
 204                 return(NULL);
 205         return(dh);
 206         }
 207 #endif
 208
 209 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 210
 211 #undef BUFSIZZ
 212 #define BUFSIZZ 16*1024
 213 static int bufsize=BUFSIZZ;
 214 static int accept_socket= -1;
 215
 216 #define TEST_CERT       "server.pem"
 217 #undef PROG
 218 #define PROG            s_server_main
 219
 220 extern int verify_depth;
 221
 222 static char *cipher=NULL;
 223 static int s_server_verify=SSL_VERIFY_NONE;
 224 static int s_server_session_id_context = 1; /* anything will do */
 225 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 226 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 227 #ifdef FIONBIO
 228 static int s_nbio=0;
 229 #endif
 230 static int s_nbio_test=0;
 231 int s_crlf=0;
 232 static SSL_CTX *ctx=NULL;
 233 static int www=0;
 234
 235 static BIO *bio_s_out=NULL;
 236 static int s_debug=0;
 237 static int s_msg=0;
 238 static int s_quiet=0;
 239
 240 static int hack=0;
 241 #ifndef OPENSSL_NO_ENGINE
 242 static char *engine_id=NULL;
 243 #endif
 244 static const char *session_id_prefix=NULL;
 245
 246 #ifdef MONOLITH
 247 static void s_server_init(void)
 248         {
 249         accept_socket=-1;
 250         cipher=NULL;
 251         s_server_verify=SSL_VERIFY_NONE;
 252         s_dcert_file=NULL;
 253         s_dkey_file=NULL;
 254         s_cert_file=TEST_CERT;
 255         s_key_file=NULL;
 256 #ifdef FIONBIO
 257         s_nbio=0;
 258 #endif
 259         s_nbio_test=0;
 260         ctx=NULL;
 261         www=0;
 262
 263         bio_s_out=NULL;
 264         s_debug=0;
 265         s_msg=0;
 266         s_quiet=0;
 267         hack=0;
 268 #ifndef OPENSSL_NO_ENGINE
 269         engine_id=NULL;
 270 #endif
 271         }
 272 #endif
 273
 274 static void sv_usage(void)
 275         {
 276         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 277         BIO_printf(bio_err,"\n");
 278         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 279         BIO_printf(bio_err," -context arg  - set session ID context\n");
 280         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 281         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 282         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 283         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 284         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
 285         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 286         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 287         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 288         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 289         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 290 #ifdef FIONBIO
 291         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 292 #endif
 293         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 294         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 295         BIO_printf(bio_err," -debug        - Print more output\n");
 296         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 297         BIO_printf(bio_err," -state        - Print the SSL states\n");
 298         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 299         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 300         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 301         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 302         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 303         BIO_printf(bio_err," -quiet        - No server output\n");
 304         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 305         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 306         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 307         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 308         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 309         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 310         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 311 #ifndef OPENSSL_NO_DH
 312         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 313 #endif
 314         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 315         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 316         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 317         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 318         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 319 #ifndef OPENSSL_NO_ENGINE
 320         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 321 #endif
 322         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 323         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 324         }
 325
 326 static int local_argc=0;
 327 static char **local_argv;
 328
 329 #ifdef CHARSET_EBCDIC
 330 static int ebcdic_new(BIO *bi);
 331 static int ebcdic_free(BIO *a);
 332 static int ebcdic_read(BIO *b, char *out, int outl);
 333 static int ebcdic_write(BIO *b, const char *in, int inl);
 334 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 335 static int ebcdic_gets(BIO *bp, char *buf, int size);
 336 static int ebcdic_puts(BIO *bp, const char *str);
 337
 338 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 339 static BIO_METHOD methods_ebcdic=
 340         {
 341         BIO_TYPE_EBCDIC_FILTER,
 342         "EBCDIC/ASCII filter",
 343         ebcdic_write,
 344         ebcdic_read,
 345         ebcdic_puts,
 346         ebcdic_gets,
 347         ebcdic_ctrl,
 348         ebcdic_new,
 349         ebcdic_free,
 350         };
 351
 352 typedef struct
 353 {
 354         size_t  alloced;
 355         char    buff[1];
 356 } EBCDIC_OUTBUFF;
 357
 358 BIO_METHOD *BIO_f_ebcdic_filter()
 359 {
 360         return(&methods_ebcdic);
 361 }
 362
 363 static int ebcdic_new(BIO *bi)
 364 {
 365         EBCDIC_OUTBUFF *wbuf;
 366
 367         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 368         wbuf->alloced = 1024;
 369         wbuf->buff[0] = '\0';
 370
 371         bi->ptr=(char *)wbuf;
 372         bi->init=1;
 373         bi->flags=0;
 374         return(1);
 375 }
 376
 377 static int ebcdic_free(BIO *a)
 378 {
 379         if (a == NULL) return(0);
 380         if (a->ptr != NULL)
 381                 OPENSSL_free(a->ptr);
 382         a->ptr=NULL;
 383         a->init=0;
 384         a->flags=0;
 385         return(1);
 386 }
 387
 388 static int ebcdic_read(BIO *b, char *out, int outl)
 389 {
 390         int ret=0;
 391
 392         if (out == NULL || outl == 0) return(0);
 393         if (b->next_bio == NULL) return(0);
 394
 395         ret=BIO_read(b->next_bio,out,outl);
 396         if (ret > 0)
 397                 ascii2ebcdic(out,out,ret);
 398         return(ret);
 399 }
 400
 401 static int ebcdic_write(BIO *b, const char *in, int inl)
 402 {
 403         EBCDIC_OUTBUFF *wbuf;
 404         int ret=0;
 405         int num;
 406         unsigned char n;
 407
 408         if ((in == NULL) || (inl <= 0)) return(0);
 409         if (b->next_bio == NULL) return(0);
 410
 411         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 412
 413         if (inl > (num = wbuf->alloced))
 414         {
 415                 num = num + num;  /* double the size */
 416                 if (num < inl)
 417                         num = inl;
 418                 OPENSSL_free(wbuf);
 419                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 420
 421                 wbuf->alloced = num;
 422                 wbuf->buff[0] = '\0';
 423
 424                 b->ptr=(char *)wbuf;
 425         }
 426
 427         ebcdic2ascii(wbuf->buff, in, inl);
 428
 429         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 430
 431         return(ret);
 432 }
 433
 434 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 435 {
 436         long ret;
 437
 438         if (b->next_bio == NULL) return(0);
 439         switch (cmd)
 440         {
 441         case BIO_CTRL_DUP:
 442                 ret=0L;
 443                 break;
 444         default:
 445                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 446                 break;
 447         }
 448         return(ret);
 449 }
 450
 451 static int ebcdic_gets(BIO *bp, char *buf, int size)
 452 {
 453         int i, ret=0;
 454         if (bp->next_bio == NULL) return(0);
 455 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 456         for (i=0; i<size-1; ++i)
 457         {
 458                 ret = ebcdic_read(bp,&buf[i],1);
 459                 if (ret <= 0)
 460                         break;
 461                 else if (buf[i] == '\n')
 462                 {
 463                         ++i;
 464                         break;
 465                 }
 466         }
 467         if (i < size)
 468                 buf[i] = '\0';
 469         return (ret < 0 && i == 0) ? ret : i;
 470 }
 471
 472 static int ebcdic_puts(BIO *bp, const char *str)
 473 {
 474         if (bp->next_bio == NULL) return(0);
 475         return ebcdic_write(bp, str, strlen(str));
 476 }
 477 #endif
 478
 479 int MAIN(int, char **);
 480
 481 int MAIN(int argc, char *argv[])
 482         {
 483         X509_STORE *store = NULL;
 484         int vflags = 0;
 485         short port=PORT;
 486         char *CApath=NULL,*CAfile=NULL;
 487         char *context = NULL;
 488         char *dhfile = NULL;
 489         int badop=0,bugs=0;
 490         int ret=1;
 491         int off=0;
 492         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 493         int state=0;
 494         SSL_METHOD *meth=NULL;
 495 #ifndef OPENSSL_NO_ENGINE
 496         ENGINE *e=NULL;
 497 #endif
 498         char *inrand=NULL;
 499
 500 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 501         meth=SSLv23_server_method();
 502 #elif !defined(OPENSSL_NO_SSL3)
 503         meth=SSLv3_server_method();
 504 #elif !defined(OPENSSL_NO_SSL2)
 505         meth=SSLv2_server_method();
 506 #endif
 507
 508         local_argc=argc;
 509         local_argv=argv;
 510
 511         apps_startup();
 512 #ifdef MONOLITH
 513         s_server_init();
 514 #endif
 515
 516         if (bio_err == NULL)
 517                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 518
 519         if (!load_config(bio_err, NULL))
 520                 goto end;
 521
 522         verify_depth=0;
 523 #ifdef FIONBIO
 524         s_nbio=0;
 525 #endif
 526         s_nbio_test=0;
 527
 528         argc--;
 529         argv++;
 530
 531         while (argc >= 1)
 532                 {
 533                 if      ((strcmp(*argv,"-port") == 0) ||
 534                          (strcmp(*argv,"-accept") == 0))
 535                         {
 536                         if (--argc < 1) goto bad;
 537                         if (!extract_port(*(++argv),&port))
 538                                 goto bad;
 539                         }
 540                 else if (strcmp(*argv,"-verify") == 0)
 541                         {
 542                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 543                         if (--argc < 1) goto bad;
 544                         verify_depth=atoi(*(++argv));
 545                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 546                         }
 547                 else if (strcmp(*argv,"-Verify") == 0)
 548                         {
 549                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 550                                 SSL_VERIFY_CLIENT_ONCE;
 551                         if (--argc < 1) goto bad;
 552                         verify_depth=atoi(*(++argv));
 553                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 554                         }
 555                 else if (strcmp(*argv,"-context") == 0)
 556                         {
 557                         if (--argc < 1) goto bad;
 558                         context= *(++argv);
 559                         }
 560                 else if (strcmp(*argv,"-cert") == 0)
 561                         {
 562                         if (--argc < 1) goto bad;
 563                         s_cert_file= *(++argv);
 564                         }
 565                 else if (strcmp(*argv,"-key") == 0)
 566                         {
 567                         if (--argc < 1) goto bad;
 568                         s_key_file= *(++argv);
 569                         }
 570                 else if (strcmp(*argv,"-dhparam") == 0)
 571                         {
 572                         if (--argc < 1) goto bad;
 573                         dhfile = *(++argv);
 574                         }
 575                 else if (strcmp(*argv,"-dcert") == 0)
 576                         {
 577                         if (--argc < 1) goto bad;
 578                         s_dcert_file= *(++argv);
 579                         }
 580                 else if (strcmp(*argv,"-dkey") == 0)
 581                         {
 582                         if (--argc < 1) goto bad;
 583                         s_dkey_file= *(++argv);
 584                         }
 585                 else if (strcmp(*argv,"-nocert") == 0)
 586                         {
 587                         nocert=1;
 588                         }
 589                 else if (strcmp(*argv,"-CApath") == 0)
 590                         {
 591                         if (--argc < 1) goto bad;
 592                         CApath= *(++argv);
 593                         }
 594                 else if (strcmp(*argv,"-crl_check") == 0)
 595                         {
 596                         vflags |= X509_V_FLAG_CRL_CHECK;
 597                         }
 598                 else if (strcmp(*argv,"-crl_check") == 0)
 599                         {
 600                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 601                         }
 602                 else if (strcmp(*argv,"-serverpref") == 0)
 603                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
 604                 else if (strcmp(*argv,"-cipher") == 0)
 605                         {
 606                         if (--argc < 1) goto bad;
 607                         cipher= *(++argv);
 608                         }
 609                 else if (strcmp(*argv,"-CAfile") == 0)
 610                         {
 611                         if (--argc < 1) goto bad;
 612                         CAfile= *(++argv);
 613                         }
 614 #ifdef FIONBIO
 615                 else if (strcmp(*argv,"-nbio") == 0)
 616                         { s_nbio=1; }
 617 #endif
 618                 else if (strcmp(*argv,"-nbio_test") == 0)
 619                         {
 620 #ifdef FIONBIO
 621                         s_nbio=1;
 622 #endif
 623                         s_nbio_test=1;
 624                         }
 625                 else if (strcmp(*argv,"-debug") == 0)
 626                         { s_debug=1; }
 627                 else if (strcmp(*argv,"-msg") == 0)
 628                         { s_msg=1; }
 629                 else if (strcmp(*argv,"-hack") == 0)
 630                         { hack=1; }
 631                 else if (strcmp(*argv,"-state") == 0)
 632                         { state=1; }
 633                 else if (strcmp(*argv,"-crlf") == 0)
 634                         { s_crlf=1; }
 635                 else if (strcmp(*argv,"-quiet") == 0)
 636                         { s_quiet=1; }
 637                 else if (strcmp(*argv,"-bugs") == 0)
 638                         { bugs=1; }
 639                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 640                         { no_tmp_rsa=1; }
 641                 else if (strcmp(*argv,"-no_dhe") == 0)
 642                         { no_dhe=1; }
 643                 else if (strcmp(*argv,"-www") == 0)
 644                         { www=1; }
 645                 else if (strcmp(*argv,"-WWW") == 0)
 646                         { www=2; }
 647                 else if (strcmp(*argv,"-HTTP") == 0)
 648                         { www=3; }
 649                 else if (strcmp(*argv,"-no_ssl2") == 0)
 650                         { off|=SSL_OP_NO_SSLv2; }
 651                 else if (strcmp(*argv,"-no_ssl3") == 0)
 652                         { off|=SSL_OP_NO_SSLv3; }
 653                 else if (strcmp(*argv,"-no_tls1") == 0)
 654                         { off|=SSL_OP_NO_TLSv1; }
 655 #ifndef OPENSSL_NO_SSL2
 656                 else if (strcmp(*argv,"-ssl2") == 0)
 657                         { meth=SSLv2_server_method(); }
 658 #endif
 659 #ifndef OPENSSL_NO_SSL3
 660                 else if (strcmp(*argv,"-ssl3") == 0)
 661                         { meth=SSLv3_server_method(); }
 662 #endif
 663 #ifndef OPENSSL_NO_TLS1
 664                 else if (strcmp(*argv,"-tls1") == 0)
 665                         { meth=TLSv1_server_method(); }
 666 #endif
 667                 else if (strcmp(*argv, "-id_prefix") == 0)
 668                         {
 669                         if (--argc < 1) goto bad;
 670                         session_id_prefix = *(++argv);
 671                         }
 672 #ifndef OPENSSL_NO_ENGINE
 673                 else if (strcmp(*argv,"-engine") == 0)
 674                         {
 675                         if (--argc < 1) goto bad;
 676                         engine_id= *(++argv);
 677                         }
 678 #endif
 679                 else if (strcmp(*argv,"-rand") == 0)
 680                         {
 681                         if (--argc < 1) goto bad;
 682                         inrand= *(++argv);
 683                         }
 684                 else
 685                         {
 686                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 687                         badop=1;
 688                         break;
 689                         }
 690                 argc--;
 691                 argv++;
 692                 }
 693         if (badop)
 694                 {
 695 bad:
 696                 sv_usage();
 697                 goto end;
 698                 }
 699
 700         SSL_load_error_strings();
 701         OpenSSL_add_ssl_algorithms();
 702
 703 #ifndef OPENSSL_NO_ENGINE
 704         e = setup_engine(bio_err, engine_id, 1);
 705 #endif
 706
 707         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 708                 && !RAND_status())
 709                 {
 710                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 711                 }
 712         if (inrand != NULL)
 713                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 714                         app_RAND_load_files(inrand));
 715
 716         if (bio_s_out == NULL)
 717                 {
 718                 if (s_quiet && !s_debug && !s_msg)
 719                         {
 720                         bio_s_out=BIO_new(BIO_s_null());
 721                         }
 722                 else
 723                         {
 724                         if (bio_s_out == NULL)
 725                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 726                         }
 727                 }
 728
 729 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA)
 730         if (nocert)
 731 #endif
 732                 {
 733                 s_cert_file=NULL;
 734                 s_key_file=NULL;
 735                 s_dcert_file=NULL;
 736                 s_dkey_file=NULL;
 737                 }
 738
 739         ctx=SSL_CTX_new(meth);
 740         if (ctx == NULL)
 741                 {
 742                 ERR_print_errors(bio_err);
 743                 goto end;
 744                 }
 745         if (session_id_prefix)
 746                 {
 747                 if(strlen(session_id_prefix) >= 32)
 748                         BIO_printf(bio_err,
 749 "warning: id_prefix is too long, only one new session will be possible\n");
 750                 else if(strlen(session_id_prefix) >= 16)
 751                         BIO_printf(bio_err,
 752 "warning: id_prefix is too long if you use SSLv2\n");
 753                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
 754                         {
 755                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
 756                         ERR_print_errors(bio_err);
 757                         goto end;
 758                         }
 759                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
 760                 }
 761         SSL_CTX_set_quiet_shutdown(ctx,1);
 762         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 763         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 764         SSL_CTX_set_options(ctx,off);
 765
 766         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 767
 768         SSL_CTX_sess_set_cache_size(ctx,128);
 769
 770 #if 0
 771         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 772 #endif
 773
 774 #if 0
 775         if (s_cert_file == NULL)
 776                 {
 777                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 778                 goto end;
 779                 }
 780 #endif
 781
 782         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 783                 (!SSL_CTX_set_default_verify_paths(ctx)))
 784                 {
 785                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 786                 ERR_print_errors(bio_err);
 787                 /* goto end; */
 788                 }
 789         store = SSL_CTX_get_cert_store(ctx);
 790         X509_STORE_set_flags(store, vflags);
 791
 792 #ifndef OPENSSL_NO_DH
 793         if (!no_dhe)
 794                 {
 795                 DH *dh=NULL;
 796
 797                 if (dhfile)
 798                         dh = load_dh_param(dhfile);
 799                 else if (s_cert_file)
 800                         dh = load_dh_param(s_cert_file);
 801
 802                 if (dh != NULL)
 803                         {
 804                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 805                         }
 806                 else
 807                         {
 808                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 809                         dh=get_dh512();
 810                         }
 811                 (void)BIO_flush(bio_s_out);
 812
 813                 SSL_CTX_set_tmp_dh(ctx,dh);
 814                 DH_free(dh);
 815                 }
 816 #endif
 817
 818         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 819                 goto end;
 820         if (s_dcert_file != NULL)
 821                 {
 822                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 823                         goto end;
 824                 }
 825
 826 #ifndef OPENSSL_NO_RSA
 827 #if 1
 828         if (!no_tmp_rsa)
 829                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 830 #else
 831         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 832                 {
 833                 RSA *rsa;
 834
 835                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 836                 BIO_flush(bio_s_out);
 837
 838                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 839
 840                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 841                         {
 842                         ERR_print_errors(bio_err);
 843                         goto end;
 844                         }
 845                 RSA_free(rsa);
 846                 BIO_printf(bio_s_out,"\n");
 847                 }
 848 #endif
 849 #endif
 850
 851         if (cipher != NULL)
 852                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 853                 BIO_printf(bio_err,"error setting cipher list\n");
 854                 ERR_print_errors(bio_err);
 855                 goto end;
 856         }
 857         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 858         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 859                 sizeof s_server_session_id_context);
 860
 861         if (CAfile != NULL)
 862             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 863
 864         BIO_printf(bio_s_out,"ACCEPT\n");
 865         if (www)
 866                 do_server(port,&accept_socket,www_body, context);
 867         else
 868                 do_server(port,&accept_socket,sv_body, context);
 869         print_stats(bio_s_out,ctx);
 870         ret=0;
 871 end:
 872         if (ctx != NULL) SSL_CTX_free(ctx);
 873         if (bio_s_out != NULL)
 874                 {
 875                 BIO_free(bio_s_out);
 876                 bio_s_out=NULL;
 877                 }
 878         apps_shutdown();
 879         OPENSSL_EXIT(ret);
 880         }
 881
 882 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 883         {
 884         BIO_printf(bio,"%4ld items in the session cache\n",
 885                 SSL_CTX_sess_number(ssl_ctx));
 886         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 887                 SSL_CTX_sess_connect(ssl_ctx));
 888         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 889                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 890         BIO_printf(bio,"%4d client connects that finished\n",
 891                 SSL_CTX_sess_connect_good(ssl_ctx));
 892         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 893                 SSL_CTX_sess_accept(ssl_ctx));
 894         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 895                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 896         BIO_printf(bio,"%4d server accepts that finished\n",
 897                 SSL_CTX_sess_accept_good(ssl_ctx));
 898         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 899         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 900         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 901         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 902         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 903                 SSL_CTX_sess_cache_full(ssl_ctx),
 904                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 905         }
 906
 907 static int sv_body(char *hostname, int s, unsigned char *context)
 908         {
 909         char *buf=NULL;
 910         fd_set readfds;
 911         int ret=1,width;
 912         int k,i;
 913         unsigned long l;
 914         SSL *con=NULL;
 915         BIO *sbio;
 916 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
 917         struct timeval tv;
 918 #endif
 919
 920         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
 921                 {
 922                 BIO_printf(bio_err,"out of memory\n");
 923                 goto err;
 924                 }
 925 #ifdef FIONBIO
 926         if (s_nbio)
 927                 {
 928                 unsigned long sl=1;
 929
 930                 if (!s_quiet)
 931                         BIO_printf(bio_err,"turning on non blocking io\n");
 932                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 933                         ERR_print_errors(bio_err);
 934                 }
 935 #endif
 936
 937         if (con == NULL) {
 938                 con=SSL_new(ctx);
 939 #ifndef OPENSSL_NO_KRB5
 940                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
 941                         {
 942                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
 943                                                                 KRB5SVC);
 944                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
 945                                                                 KRB5KEYTAB);
 946                         }
 947 #endif  /* OPENSSL_NO_KRB5 */
 948                 if(context)
 949                       SSL_set_session_id_context(con, context,
 950                                                  strlen((char *)context));
 951         }
 952         SSL_clear(con);
 953
 954         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 955         if (s_nbio_test)
 956                 {
 957                 BIO *test;
 958
 959                 test=BIO_new(BIO_f_nbio_test());
 960                 sbio=BIO_push(test,sbio);
 961                 }
 962         SSL_set_bio(con,sbio,sbio);
 963         SSL_set_accept_state(con);
 964         /* SSL_set_fd(con,s); */
 965
 966         if (s_debug)
 967                 {
 968                 con->debug=1;
 969                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 970                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 971                 }
 972         if (s_msg)
 973                 {
 974                 SSL_set_msg_callback(con, msg_cb);
 975                 SSL_set_msg_callback_arg(con, bio_s_out);
 976                 }
 977
 978         width=s+1;
 979         for (;;)
 980                 {
 981                 int read_from_terminal;
 982                 int read_from_sslcon;
 983
 984                 read_from_terminal = 0;
 985                 read_from_sslcon = SSL_pending(con);
 986
 987                 if (!read_from_sslcon)
 988                         {
 989                         FD_ZERO(&readfds);
 990 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
 991                         FD_SET(fileno(stdin),&readfds);
 992 #endif
 993                         FD_SET(s,&readfds);
 994                         /* Note: under VMS with SOCKETSHR the second parameter is
 995                          * currently of type (int *) whereas under other systems
 996                          * it is (void *) if you don't have a cast it will choke
 997                          * the compiler: if you do have a cast then you can either
 998                          * go for (int *) or (void *).
 999                          */
1000 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1001                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
1002                          * on sockets. As a workaround we timeout the select every
1003                          * second and check for any keypress. In a proper Windows
1004                          * application we wouldn't do this because it is inefficient.
1005                          */
1006                         tv.tv_sec = 1;
1007                         tv.tv_usec = 0;
1008                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
1009                         if((i < 0) || (!i && !_kbhit() ) )continue;
1010                         if(_kbhit())
1011                                 read_from_terminal = 1;
1012 #else
1013                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
1014                         if (i <= 0) continue;
1015                         if (FD_ISSET(fileno(stdin),&readfds))
1016                                 read_from_terminal = 1;
1017 #endif
1018                         if (FD_ISSET(s,&readfds))
1019                                 read_from_sslcon = 1;
1020                         }
1021                 if (read_from_terminal)
1022                         {
1023                         if (s_crlf)
1024                                 {
1025                                 int j, lf_num;
1026
1027                                 i=read(fileno(stdin), buf, bufsize/2);
1028                                 lf_num = 0;
1029                                 /* both loops are skipped when i <= 0 */
1030                                 for (j = 0; j < i; j++)
1031                                         if (buf[j] == '\n')
1032                                                 lf_num++;
1033                                 for (j = i-1; j >= 0; j--)
1034                                         {
1035                                         buf[j+lf_num] = buf[j];
1036                                         if (buf[j] == '\n')
1037                                                 {
1038                                                 lf_num--;
1039                                                 i++;
1040                                                 buf[j+lf_num] = '\r';
1041                                                 }
1042                                         }
1043                                 assert(lf_num == 0);
1044                                 }
1045                         else
1046                                 i=read(fileno(stdin),buf,bufsize);
1047                         if (!s_quiet)
1048                                 {
1049                                 if ((i <= 0) || (buf[0] == 'Q'))
1050                                         {
1051                                         BIO_printf(bio_s_out,"DONE\n");
1052                                         SHUTDOWN(s);
1053                                         close_accept_socket();
1054                                         ret= -11;
1055                                         goto err;
1056                                         }
1057                                 if ((i <= 0) || (buf[0] == 'q'))
1058                                         {
1059                                         BIO_printf(bio_s_out,"DONE\n");
1060                                         SHUTDOWN(s);
1061         /*                              close_accept_socket();
1062                                         ret= -11;*/
1063                                         goto err;
1064                                         }
1065                                 if ((buf[0] == 'r') &&
1066                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1067                                         {
1068                                         SSL_renegotiate(con);
1069                                         i=SSL_do_handshake(con);
1070                                         printf("SSL_do_handshake -> %d\n",i);
1071                                         i=0; /*13; */
1072                                         continue;
1073                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1074                                         }
1075                                 if ((buf[0] == 'R') &&
1076                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1077                                         {
1078                                         SSL_set_verify(con,
1079                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1080                                         SSL_renegotiate(con);
1081                                         i=SSL_do_handshake(con);
1082                                         printf("SSL_do_handshake -> %d\n",i);
1083                                         i=0; /* 13; */
1084                                         continue;
1085                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1086                                         }
1087                                 if (buf[0] == 'P')
1088                                         {
1089                                         static char *str="Lets print some clear text\n";
1090                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1091                                         }
1092                                 if (buf[0] == 'S')
1093                                         {
1094                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1095                                         }
1096                                 }
1097 #ifdef CHARSET_EBCDIC
1098                         ebcdic2ascii(buf,buf,i);
1099 #endif
1100                         l=k=0;
1101                         for (;;)
1102                                 {
1103                                 /* should do a select for the write */
1104 #ifdef RENEG
1105 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1106 #endif
1107                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1108                                 switch (SSL_get_error(con,k))
1109                                         {
1110                                 case SSL_ERROR_NONE:
1111                                         break;
1112                                 case SSL_ERROR_WANT_WRITE:
1113                                 case SSL_ERROR_WANT_READ:
1114                                 case SSL_ERROR_WANT_X509_LOOKUP:
1115                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1116                                         break;
1117                                 case SSL_ERROR_SYSCALL:
1118                                 case SSL_ERROR_SSL:
1119                                         BIO_printf(bio_s_out,"ERROR\n");
1120                                         ERR_print_errors(bio_err);
1121                                         ret=1;
1122                                         goto err;
1123                                         /* break; */
1124                                 case SSL_ERROR_ZERO_RETURN:
1125                                         BIO_printf(bio_s_out,"DONE\n");
1126                                         ret=1;
1127                                         goto err;
1128                                         }
1129                                 l+=k;
1130                                 i-=k;
1131                                 if (i <= 0) break;
1132                                 }
1133                         }
1134                 if (read_from_sslcon)
1135                         {
1136                         if (!SSL_is_init_finished(con))
1137                                 {
1138                                 i=init_ssl_connection(con);
1139
1140                                 if (i < 0)
1141                                         {
1142                                         ret=0;
1143                                         goto err;
1144                                         }
1145                                 else if (i == 0)
1146                                         {
1147                                         ret=1;
1148                                         goto err;
1149                                         }
1150                                 }
1151                         else
1152                                 {
1153 again:
1154                                 i=SSL_read(con,(char *)buf,bufsize);
1155                                 switch (SSL_get_error(con,i))
1156                                         {
1157                                 case SSL_ERROR_NONE:
1158 #ifdef CHARSET_EBCDIC
1159                                         ascii2ebcdic(buf,buf,i);
1160 #endif
1161                                         write(fileno(stdout),buf,
1162                                                 (unsigned int)i);
1163                                         if (SSL_pending(con)) goto again;
1164                                         break;
1165                                 case SSL_ERROR_WANT_WRITE:
1166                                 case SSL_ERROR_WANT_READ:
1167                                 case SSL_ERROR_WANT_X509_LOOKUP:
1168                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1169                                         break;
1170                                 case SSL_ERROR_SYSCALL:
1171                                 case SSL_ERROR_SSL:
1172                                         BIO_printf(bio_s_out,"ERROR\n");
1173                                         ERR_print_errors(bio_err);
1174                                         ret=1;
1175                                         goto err;
1176                                 case SSL_ERROR_ZERO_RETURN:
1177                                         BIO_printf(bio_s_out,"DONE\n");
1178                                         ret=1;
1179                                         goto err;
1180                                         }
1181                                 }
1182                         }
1183                 }
1184 err:
1185         BIO_printf(bio_s_out,"shutting down SSL\n");
1186 #if 1
1187         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1188 #else
1189         SSL_shutdown(con);
1190 #endif
1191         if (con != NULL) SSL_free(con);
1192         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1193         if (buf != NULL)
1194                 {
1195                 OPENSSL_cleanse(buf,bufsize);
1196                 OPENSSL_free(buf);
1197                 }
1198         if (ret >= 0)
1199                 BIO_printf(bio_s_out,"ACCEPT\n");
1200         return(ret);
1201         }
1202
1203 static void close_accept_socket(void)
1204         {
1205         BIO_printf(bio_err,"shutdown accept socket\n");
1206         if (accept_socket >= 0)
1207                 {
1208                 SHUTDOWN2(accept_socket);
1209                 }
1210         }
1211
1212 static int init_ssl_connection(SSL *con)
1213         {
1214         int i;
1215         const char *str;
1216         X509 *peer;
1217         long verify_error;
1218         MS_STATIC char buf[BUFSIZ];
1219
1220         if ((i=SSL_accept(con)) <= 0)
1221                 {
1222                 if (BIO_sock_should_retry(i))
1223                         {
1224                         BIO_printf(bio_s_out,"DELAY\n");
1225                         return(1);
1226                         }
1227
1228                 BIO_printf(bio_err,"ERROR\n");
1229                 verify_error=SSL_get_verify_result(con);
1230                 if (verify_error != X509_V_OK)
1231                         {
1232                         BIO_printf(bio_err,"verify error:%s\n",
1233                                 X509_verify_cert_error_string(verify_error));
1234                         }
1235                 else
1236                         ERR_print_errors(bio_err);
1237                 return(0);
1238                 }
1239
1240         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1241
1242         peer=SSL_get_peer_certificate(con);
1243         if (peer != NULL)
1244                 {
1245                 BIO_printf(bio_s_out,"Client certificate\n");
1246                 PEM_write_bio_X509(bio_s_out,peer);
1247                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
1248                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1249                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
1250                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1251                 X509_free(peer);
1252                 }
1253
1254         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
1255                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1256         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1257         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1258         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1259         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1260                 TLS1_FLAGS_TLS_PADDING_BUG)
1261                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1262 #ifndef OPENSSL_NO_KRB5
1263         if (con->kssl_ctx->client_princ != NULL)
1264                 {
1265                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
1266                         con->kssl_ctx->client_princ);
1267                 }
1268 #endif /* OPENSSL_NO_KRB5 */
1269         return(1);
1270         }
1271
1272 #ifndef OPENSSL_NO_DH
1273 static DH *load_dh_param(char *dhfile)
1274         {
1275         DH *ret=NULL;
1276         BIO *bio;
1277
1278         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1279                 goto err;
1280         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1281 err:
1282         if (bio != NULL) BIO_free(bio);
1283         return(ret);
1284         }
1285 #endif
1286
1287 #if 0
1288 static int load_CA(SSL_CTX *ctx, char *file)
1289         {
1290         FILE *in;
1291         X509 *x=NULL;
1292
1293         if ((in=fopen(file,"r")) == NULL)
1294                 return(0);
1295
1296         for (;;)
1297                 {
1298                 if (PEM_read_X509(in,&x,NULL) == NULL)
1299                         break;
1300                 SSL_CTX_add_client_CA(ctx,x);
1301                 }
1302         if (x != NULL) X509_free(x);
1303         fclose(in);
1304         return(1);
1305         }
1306 #endif
1307
1308 static int www_body(char *hostname, int s, unsigned char *context)
1309         {
1310         char *buf=NULL;
1311         int ret=1;
1312         int i,j,k,blank,dot;
1313         struct stat st_buf;
1314         SSL *con;
1315         SSL_CIPHER *c;
1316         BIO *io,*ssl_bio,*sbio;
1317         long total_bytes;
1318
1319         buf=OPENSSL_malloc(bufsize);
1320         if (buf == NULL) return(0);
1321         io=BIO_new(BIO_f_buffer());
1322         ssl_bio=BIO_new(BIO_f_ssl());
1323         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1324
1325 #ifdef FIONBIO
1326         if (s_nbio)
1327                 {
1328                 unsigned long sl=1;
1329
1330                 if (!s_quiet)
1331                         BIO_printf(bio_err,"turning on non blocking io\n");
1332                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1333                         ERR_print_errors(bio_err);
1334                 }
1335 #endif
1336
1337         /* lets make the output buffer a reasonable size */
1338         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1339
1340         if ((con=SSL_new(ctx)) == NULL) goto err;
1341 #ifndef OPENSSL_NO_KRB5
1342         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1343                 {
1344                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
1345                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
1346                 }
1347 #endif  /* OPENSSL_NO_KRB5 */
1348         if(context) SSL_set_session_id_context(con, context,
1349                                                strlen((char *)context));
1350
1351         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1352         if (s_nbio_test)
1353                 {
1354                 BIO *test;
1355
1356                 test=BIO_new(BIO_f_nbio_test());
1357                 sbio=BIO_push(test,sbio);
1358                 }
1359         SSL_set_bio(con,sbio,sbio);
1360         SSL_set_accept_state(con);
1361
1362         /* SSL_set_fd(con,s); */
1363         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1364         BIO_push(io,ssl_bio);
1365 #ifdef CHARSET_EBCDIC
1366         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1367 #endif
1368
1369         if (s_debug)
1370                 {
1371                 con->debug=1;
1372                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1373                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1374                 }
1375         if (s_msg)
1376                 {
1377                 SSL_set_msg_callback(con, msg_cb);
1378                 SSL_set_msg_callback_arg(con, bio_s_out);
1379                 }
1380
1381         blank=0;
1382         for (;;)
1383                 {
1384                 if (hack)
1385                         {
1386                         i=SSL_accept(con);
1387
1388                         switch (SSL_get_error(con,i))
1389                                 {
1390                         case SSL_ERROR_NONE:
1391                                 break;
1392                         case SSL_ERROR_WANT_WRITE:
1393                         case SSL_ERROR_WANT_READ:
1394                         case SSL_ERROR_WANT_X509_LOOKUP:
1395                                 continue;
1396                         case SSL_ERROR_SYSCALL:
1397                         case SSL_ERROR_SSL:
1398                         case SSL_ERROR_ZERO_RETURN:
1399                                 ret=1;
1400                                 goto err;
1401                                 /* break; */
1402                                 }
1403
1404                         SSL_renegotiate(con);
1405                         SSL_write(con,NULL,0);
1406                         }
1407
1408                 i=BIO_gets(io,buf,bufsize-1);
1409                 if (i < 0) /* error */
1410                         {
1411                         if (!BIO_should_retry(io))
1412                                 {
1413                                 if (!s_quiet)
1414                                         ERR_print_errors(bio_err);
1415                                 goto err;
1416                                 }
1417                         else
1418                                 {
1419                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1420 #if !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
1421                                 sleep(1);
1422 #endif
1423                                 continue;
1424                                 }
1425                         }
1426                 else if (i == 0) /* end of input */
1427                         {
1428                         ret=1;
1429                         goto end;
1430                         }
1431
1432                 /* else we have data */
1433                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1434                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1435                         {
1436                         char *p;
1437                         X509 *peer;
1438                         STACK_OF(SSL_CIPHER) *sk;
1439                         static char *space="                          ";
1440
1441                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1442                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1443                         BIO_puts(io,"<pre>\n");
1444 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1445                         BIO_puts(io,"\n");
1446                         for (i=0; i<local_argc; i++)
1447                                 {
1448                                 BIO_puts(io,local_argv[i]);
1449                                 BIO_write(io," ",1);
1450                                 }
1451                         BIO_puts(io,"\n");
1452
1453                         /* The following is evil and should not really
1454                          * be done */
1455                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1456                         sk=SSL_get_ciphers(con);
1457                         j=sk_SSL_CIPHER_num(sk);
1458                         for (i=0; i<j; i++)
1459                                 {
1460                                 c=sk_SSL_CIPHER_value(sk,i);
1461                                 BIO_printf(io,"%-11s:%-25s",
1462                                         SSL_CIPHER_get_version(c),
1463                                         SSL_CIPHER_get_name(c));
1464                                 if ((((i+1)%2) == 0) && (i+1 != j))
1465                                         BIO_puts(io,"\n");
1466                                 }
1467                         BIO_puts(io,"\n");
1468                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1469                         if (p != NULL)
1470                                 {
1471                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1472                                 j=i=0;
1473                                 while (*p)
1474                                         {
1475                                         if (*p == ':')
1476                                                 {
1477                                                 BIO_write(io,space,26-j);
1478                                                 i++;
1479                                                 j=0;
1480                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1481                                                 }
1482                                         else
1483                                                 {
1484                                                 BIO_write(io,p,1);
1485                                                 j++;
1486                                                 }
1487                                         p++;
1488                                         }
1489                                 BIO_puts(io,"\n");
1490                                 }
1491                         BIO_printf(io,((con->hit)
1492                                 ?"---\nReused, "
1493                                 :"---\nNew, "));
1494                         c=SSL_get_current_cipher(con);
1495                         BIO_printf(io,"%s, Cipher is %s\n",
1496                                 SSL_CIPHER_get_version(c),
1497                                 SSL_CIPHER_get_name(c));
1498                         SSL_SESSION_print(io,SSL_get_session(con));
1499                         BIO_printf(io,"---\n");
1500                         print_stats(io,SSL_get_SSL_CTX(con));
1501                         BIO_printf(io,"---\n");
1502                         peer=SSL_get_peer_certificate(con);
1503                         if (peer != NULL)
1504                                 {
1505                                 BIO_printf(io,"Client certificate\n");
1506                                 X509_print(io,peer);
1507                                 PEM_write_bio_X509(io,peer);
1508                                 }
1509                         else
1510                                 BIO_puts(io,"no client certificate available\n");
1511                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1512                         break;
1513                         }
1514                 else if ((www == 2 || www == 3)
1515                          && (strncmp("GET /",buf,5) == 0))
1516                         {
1517                         BIO *file;
1518                         char *p,*e;
1519                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1520
1521                         /* skip the '/' */
1522                         p= &(buf[5]);
1523
1524                         dot = 1;
1525                         for (e=p; *e != '\0'; e++)
1526                                 {
1527                                 if (e[0] == ' ')
1528                                         break;
1529
1530                                 switch (dot)
1531                                         {
1532                                 case 1:
1533                                         dot = (e[0] == '.') ? 2 : 0;
1534                                         break;
1535                                 case 2:
1536                                         dot = (e[0] == '.') ? 3 : 0;
1537                                         break;
1538                                 case 3:
1539                                         dot = (e[0] == '/') ? -1 : 0;
1540                                         break;
1541                                         }
1542                                 if (dot == 0)
1543                                         dot = (e[0] == '/') ? 1 : 0;
1544                                 }
1545                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
1546
1547                         if (*e == '\0')
1548                                 {
1549                                 BIO_puts(io,text);
1550                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1551                                 break;
1552                                 }
1553                         *e='\0';
1554
1555                         if (dot)
1556                                 {
1557                                 BIO_puts(io,text);
1558                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1559                                 break;
1560                                 }
1561
1562                         if (*p == '/')
1563                                 {
1564                                 BIO_puts(io,text);
1565                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1566                                 break;
1567                                 }
1568
1569 #if 0
1570                         /* append if a directory lookup */
1571                         if (e[-1] == '/')
1572                                 strcat(p,"index.html");
1573 #endif
1574
1575                         /* if a directory, do the index thang */
1576                         if (stat(p,&st_buf) < 0)
1577                                 {
1578                                 BIO_puts(io,text);
1579                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1580                                 ERR_print_errors(io);
1581                                 break;
1582                                 }
1583                         if (S_ISDIR(st_buf.st_mode))
1584                                 {
1585 #if 0 /* must check buffer size */
1586                                 strcat(p,"/index.html");
1587 #else
1588                                 BIO_puts(io,text);
1589                                 BIO_printf(io,"'%s' is a directory\r\n",p);
1590                                 break;
1591 #endif
1592                                 }
1593
1594                         if ((file=BIO_new_file(p,"r")) == NULL)
1595                                 {
1596                                 BIO_puts(io,text);
1597                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1598                                 ERR_print_errors(io);
1599                                 break;
1600                                 }
1601
1602                         if (!s_quiet)
1603                                 BIO_printf(bio_err,"FILE:%s\n",p);
1604
1605                         if (www == 2)
1606                                 {
1607                                 i=strlen(p);
1608                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1609                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1610                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1611                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1612                                 else
1613                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1614                                 }
1615                         /* send the file */
1616                         total_bytes=0;
1617                         for (;;)
1618                                 {
1619                                 i=BIO_read(file,buf,bufsize);
1620                                 if (i <= 0) break;
1621
1622 #ifdef RENEG
1623                                 total_bytes+=i;
1624                                 fprintf(stderr,"%d\n",i);
1625                                 if (total_bytes > 3*1024)
1626                                         {
1627                                         total_bytes=0;
1628                                         fprintf(stderr,"RENEGOTIATE\n");
1629                                         SSL_renegotiate(con);
1630                                         }
1631 #endif
1632
1633                                 for (j=0; j<i; )
1634                                         {
1635 #ifdef RENEG
1636 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1637 #endif
1638                                         k=BIO_write(io,&(buf[j]),i-j);
1639                                         if (k <= 0)
1640                                                 {
1641                                                 if (!BIO_should_retry(io))
1642                                                         goto write_error;
1643                                                 else
1644                                                         {
1645                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1646                                                         }
1647                                                 }
1648                                         else
1649                                                 {
1650                                                 j+=k;
1651                                                 }
1652                                         }
1653                                 }
1654 write_error:
1655                         BIO_free(file);
1656                         break;
1657                         }
1658                 }
1659
1660         for (;;)
1661                 {
1662                 i=(int)BIO_flush(io);
1663                 if (i <= 0)
1664                         {
1665                         if (!BIO_should_retry(io))
1666                                 break;
1667                         }
1668                 else
1669                         break;
1670                 }
1671 end:
1672 #if 1
1673         /* make sure we re-use sessions */
1674         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1675 #else
1676         /* This kills performance */
1677 /*      SSL_shutdown(con); A shutdown gets sent in the
1678  *      BIO_free_all(io) procession */
1679 #endif
1680
1681 err:
1682
1683         if (ret >= 0)
1684                 BIO_printf(bio_s_out,"ACCEPT\n");
1685
1686         if (buf != NULL) OPENSSL_free(buf);
1687         if (io != NULL) BIO_free_all(io);
1688 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1689         return(ret);
1690         }
1691
1692 #ifndef OPENSSL_NO_RSA
1693 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1694         {
1695         static RSA *rsa_tmp=NULL;
1696
1697         if (rsa_tmp == NULL)
1698                 {
1699                 if (!s_quiet)
1700                         {
1701                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1702                         (void)BIO_flush(bio_err);
1703                         }
1704                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1705                 if (!s_quiet)
1706                         {
1707                         BIO_printf(bio_err,"\n");
1708                         (void)BIO_flush(bio_err);
1709                         }
1710                 }
1711         return(rsa_tmp);
1712         }
1713 #endif
1714
1715 #define MAX_SESSION_ID_ATTEMPTS 10
1716 static int generate_session_id(const SSL *ssl, unsigned char *id,
1717                                 unsigned int *id_len)
1718         {
1719         unsigned int count = 0;
1720         do      {
1721                 RAND_pseudo_bytes(id, *id_len);
1722                 /* Prefix the session_id with the required prefix. NB: If our
1723                  * prefix is too long, clip it - but there will be worse effects
1724                  * anyway, eg. the server could only possibly create 1 session
1725                  * ID (ie. the prefix!) so all future session negotiations will
1726                  * fail due to conflicts. */
1727                 memcpy(id, session_id_prefix,
1728                         (strlen(session_id_prefix) < *id_len) ?
1729                         strlen(session_id_prefix) : *id_len);
1730                 }
1731         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
1732                 (++count < MAX_SESSION_ID_ATTEMPTS));
1733         if(count >= MAX_SESSION_ID_ATTEMPTS)
1734                 return 0;
1735         return 1;
1736         }