crypto/openssl-0.9/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  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 113  * ECC cipher suite support in OpenSSL originally developed by
 114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 115  */
 116
 117 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
 118  * deprecated functions for openssl-internal code */
 119 #ifdef OPENSSL_NO_DEPRECATED
 120 #undef OPENSSL_NO_DEPRECATED
 121 #endif
 122
 123 #include <assert.h>
 124 #include <stdio.h>
 125 #include <stdlib.h>
 126 #include <string.h>
 127
 128 #include <sys/stat.h>
 129 #include <openssl/e_os2.h>
 130 #ifdef OPENSSL_NO_STDIO
 131 #define APPS_WIN16
 132 #endif
 133
 134 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
 135 #include <sys/types.h>
 136 #endif
 137
 138 /* With IPv6, it looks like Digital has mixed up the proper order of
 139    recursive header file inclusion, resulting in the compiler complaining
 140    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 141    is needed to have fileno() declared correctly...  So let's define u_int */
 142 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 143 #define __U_INT
 144 typedef unsigned int u_int;
 145 #endif
 146
 147 #include <openssl/lhash.h>
 148 #include <openssl/bn.h>
 149 #define USE_SOCKETS
 150 #include "apps.h"
 151 #include <openssl/err.h>
 152 #include <openssl/pem.h>
 153 #include <openssl/x509.h>
 154 #include <openssl/ssl.h>
 155 #include <openssl/rand.h>
 156 #ifndef OPENSSL_NO_DH
 157 #include <openssl/dh.h>
 158 #endif
 159 #ifndef OPENSSL_NO_RSA
 160 #include <openssl/rsa.h>
 161 #endif
 162 #include "s_apps.h"
 163 #include "timeouts.h"
 164
 165 #ifdef OPENSSL_SYS_WINCE
 166 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 167 #ifdef fileno
 168 #undef fileno
 169 #endif
 170 #define fileno(a) (int)_fileno(a)
 171 #endif
 172
 173 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 174 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 175 #undef FIONBIO
 176 #endif
 177
 178 #ifndef OPENSSL_NO_RSA
 179 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 180 #endif
 181 static int sv_body(char *hostname, int s, unsigned char *context);
 182 static int www_body(char *hostname, int s, unsigned char *context);
 183 static void close_accept_socket(void );
 184 static void sv_usage(void);
 185 static int init_ssl_connection(SSL *s);
 186 static void print_stats(BIO *bp,SSL_CTX *ctx);
 187 static int generate_session_id(const SSL *ssl, unsigned char *id,
 188                                 unsigned int *id_len);
 189 #ifndef OPENSSL_NO_DH
 190 static DH *load_dh_param(const char *dhfile);
 191 static DH *get_dh512(void);
 192 #endif
 193
 194 #ifdef MONOLITH
 195 static void s_server_init(void);
 196 #endif
 197
 198 #ifndef S_ISDIR
 199 # if defined(_S_IFMT) && defined(_S_IFDIR)
 200 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 201 # else
 202 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 203 # endif
 204 #endif
 205
 206 #ifndef OPENSSL_NO_DH
 207 static unsigned char dh512_p[]={
 208         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 209         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 210         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 211         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 212         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 213         0x47,0x74,0xE8,0x33,
 214         };
 215 static unsigned char dh512_g[]={
 216         0x02,
 217         };
 218
 219 static DH *get_dh512(void)
 220         {
 221         DH *dh=NULL;
 222
 223         if ((dh=DH_new()) == NULL) return(NULL);
 224         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 225         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 226         if ((dh->p == NULL) || (dh->g == NULL))
 227                 return(NULL);
 228         return(dh);
 229         }
 230 #endif
 231
 232
 233 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 234
 235 #undef BUFSIZZ
 236 #define BUFSIZZ 16*1024
 237 static int bufsize=BUFSIZZ;
 238 static int accept_socket= -1;
 239
 240 #define TEST_CERT       "server.pem"
 241 #undef PROG
 242 #define PROG            s_server_main
 243
 244 extern int verify_depth;
 245
 246 static char *cipher=NULL;
 247 static int s_server_verify=SSL_VERIFY_NONE;
 248 static int s_server_session_id_context = 1; /* anything will do */
 249 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 250 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 251 #ifdef FIONBIO
 252 static int s_nbio=0;
 253 #endif
 254 static int s_nbio_test=0;
 255 int s_crlf=0;
 256 static SSL_CTX *ctx=NULL;
 257 static int www=0;
 258
 259 static BIO *bio_s_out=NULL;
 260 static int s_debug=0;
 261 static int s_msg=0;
 262 static int s_quiet=0;
 263
 264 static int hack=0;
 265 #ifndef OPENSSL_NO_ENGINE
 266 static char *engine_id=NULL;
 267 #endif
 268 static const char *session_id_prefix=NULL;
 269
 270 static int enable_timeouts = 0;
 271 #ifdef mtu
 272 #undef mtu
 273 #endif
 274 static long mtu;
 275 static int cert_chain = 0;
 276
 277
 278 #ifdef MONOLITH
 279 static void s_server_init(void)
 280         {
 281         accept_socket=-1;
 282         cipher=NULL;
 283         s_server_verify=SSL_VERIFY_NONE;
 284         s_dcert_file=NULL;
 285         s_dkey_file=NULL;
 286         s_cert_file=TEST_CERT;
 287         s_key_file=NULL;
 288 #ifdef FIONBIO
 289         s_nbio=0;
 290 #endif
 291         s_nbio_test=0;
 292         ctx=NULL;
 293         www=0;
 294
 295         bio_s_out=NULL;
 296         s_debug=0;
 297         s_msg=0;
 298         s_quiet=0;
 299         hack=0;
 300 #ifndef OPENSSL_NO_ENGINE
 301         engine_id=NULL;
 302 #endif
 303         }
 304 #endif
 305
 306 static void sv_usage(void)
 307         {
 308         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 309         BIO_printf(bio_err,"\n");
 310         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 311         BIO_printf(bio_err," -context arg  - set session ID context\n");
 312         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 313         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 314         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 315         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 316         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 317         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 318         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 319         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 320         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 321         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 322         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 323         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 324         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 325         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 326         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 327         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 328 #ifndef OPENSSL_NO_ECDH
 329         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 330                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 331                            "                 (default is sect163r2).\n");
 332 #endif
 333 #ifdef FIONBIO
 334         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 335 #endif
 336         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 337         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 338         BIO_printf(bio_err," -debug        - Print more output\n");
 339         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 340         BIO_printf(bio_err," -state        - Print the SSL states\n");
 341         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 342         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 343         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 344         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 345         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 346         BIO_printf(bio_err," -quiet        - No server output\n");
 347         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 348         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 349         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 350         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 351         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 352         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 353         BIO_printf(bio_err," -mtu          - Set MTU\n");
 354         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 355         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 356         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 357         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 358 #ifndef OPENSSL_NO_DH
 359         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 360 #endif
 361 #ifndef OPENSSL_NO_ECDH
 362         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 363 #endif
 364         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 365         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 366         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 367         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 368         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 369 #ifndef OPENSSL_NO_ENGINE
 370         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 371 #endif
 372         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 373         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 374         }
 375
 376 static int local_argc=0;
 377 static char **local_argv;
 378
 379 #ifdef CHARSET_EBCDIC
 380 static int ebcdic_new(BIO *bi);
 381 static int ebcdic_free(BIO *a);
 382 static int ebcdic_read(BIO *b, char *out, int outl);
 383 static int ebcdic_write(BIO *b, const char *in, int inl);
 384 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 385 static int ebcdic_gets(BIO *bp, char *buf, int size);
 386 static int ebcdic_puts(BIO *bp, const char *str);
 387
 388 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 389 static BIO_METHOD methods_ebcdic=
 390         {
 391         BIO_TYPE_EBCDIC_FILTER,
 392         "EBCDIC/ASCII filter",
 393         ebcdic_write,
 394         ebcdic_read,
 395         ebcdic_puts,
 396         ebcdic_gets,
 397         ebcdic_ctrl,
 398         ebcdic_new,
 399         ebcdic_free,
 400         };
 401
 402 typedef struct
 403 {
 404         size_t  alloced;
 405         char    buff[1];
 406 } EBCDIC_OUTBUFF;
 407
 408 BIO_METHOD *BIO_f_ebcdic_filter()
 409 {
 410         return(&methods_ebcdic);
 411 }
 412
 413 static int ebcdic_new(BIO *bi)
 414 {
 415         EBCDIC_OUTBUFF *wbuf;
 416
 417         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 418         wbuf->alloced = 1024;
 419         wbuf->buff[0] = '\0';
 420
 421         bi->ptr=(char *)wbuf;
 422         bi->init=1;
 423         bi->flags=0;
 424         return(1);
 425 }
 426
 427 static int ebcdic_free(BIO *a)
 428 {
 429         if (a == NULL) return(0);
 430         if (a->ptr != NULL)
 431                 OPENSSL_free(a->ptr);
 432         a->ptr=NULL;
 433         a->init=0;
 434         a->flags=0;
 435         return(1);
 436 }
 437
 438 static int ebcdic_read(BIO *b, char *out, int outl)
 439 {
 440         int ret=0;
 441
 442         if (out == NULL || outl == 0) return(0);
 443         if (b->next_bio == NULL) return(0);
 444
 445         ret=BIO_read(b->next_bio,out,outl);
 446         if (ret > 0)
 447                 ascii2ebcdic(out,out,ret);
 448         return(ret);
 449 }
 450
 451 static int ebcdic_write(BIO *b, const char *in, int inl)
 452 {
 453         EBCDIC_OUTBUFF *wbuf;
 454         int ret=0;
 455         int num;
 456         unsigned char n;
 457
 458         if ((in == NULL) || (inl <= 0)) return(0);
 459         if (b->next_bio == NULL) return(0);
 460
 461         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 462
 463         if (inl > (num = wbuf->alloced))
 464         {
 465                 num = num + num;  /* double the size */
 466                 if (num < inl)
 467                         num = inl;
 468                 OPENSSL_free(wbuf);
 469                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 470
 471                 wbuf->alloced = num;
 472                 wbuf->buff[0] = '\0';
 473
 474                 b->ptr=(char *)wbuf;
 475         }
 476
 477         ebcdic2ascii(wbuf->buff, in, inl);
 478
 479         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 480
 481         return(ret);
 482 }
 483
 484 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 485 {
 486         long ret;
 487
 488         if (b->next_bio == NULL) return(0);
 489         switch (cmd)
 490         {
 491         case BIO_CTRL_DUP:
 492                 ret=0L;
 493                 break;
 494         default:
 495                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 496                 break;
 497         }
 498         return(ret);
 499 }
 500
 501 static int ebcdic_gets(BIO *bp, char *buf, int size)
 502 {
 503         int i, ret=0;
 504         if (bp->next_bio == NULL) return(0);
 505 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 506         for (i=0; i<size-1; ++i)
 507         {
 508                 ret = ebcdic_read(bp,&buf[i],1);
 509                 if (ret <= 0)
 510                         break;
 511                 else if (buf[i] == '\n')
 512                 {
 513                         ++i;
 514                         break;
 515                 }
 516         }
 517         if (i < size)
 518                 buf[i] = '\0';
 519         return (ret < 0 && i == 0) ? ret : i;
 520 }
 521
 522 static int ebcdic_puts(BIO *bp, const char *str)
 523 {
 524         if (bp->next_bio == NULL) return(0);
 525         return ebcdic_write(bp, str, strlen(str));
 526 }
 527 #endif
 528
 529 int MAIN(int, char **);
 530
 531 int MAIN(int argc, char *argv[])
 532         {
 533         X509_STORE *store = NULL;
 534         int vflags = 0;
 535         short port=PORT;
 536         char *CApath=NULL,*CAfile=NULL;
 537         unsigned char *context = NULL;
 538         char *dhfile = NULL;
 539 #ifndef OPENSSL_NO_ECDH
 540         char *named_curve = NULL;
 541 #endif
 542         int badop=0,bugs=0;
 543         int ret=1;
 544         int off=0;
 545         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
 546         int state=0;
 547         SSL_METHOD *meth=NULL;
 548 #ifdef sock_type
 549 #undef sock_type
 550 #endif
 551     int sock_type=SOCK_STREAM;
 552 #ifndef OPENSSL_NO_ENGINE
 553         ENGINE *e=NULL;
 554 #endif
 555         char *inrand=NULL;
 556         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
 557         char *passarg = NULL, *pass = NULL;
 558         char *dpassarg = NULL, *dpass = NULL;
 559         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
 560         X509 *s_cert = NULL, *s_dcert = NULL;
 561         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
 562
 563 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 564         meth=SSLv23_server_method();
 565 #elif !defined(OPENSSL_NO_SSL3)
 566         meth=SSLv3_server_method();
 567 #elif !defined(OPENSSL_NO_SSL2)
 568         meth=SSLv2_server_method();
 569 #endif
 570
 571         local_argc=argc;
 572         local_argv=argv;
 573
 574         apps_startup();
 575 #ifdef MONOLITH
 576         s_server_init();
 577 #endif
 578
 579         if (bio_err == NULL)
 580                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 581
 582         if (!load_config(bio_err, NULL))
 583                 goto end;
 584
 585         verify_depth=0;
 586 #ifdef FIONBIO
 587         s_nbio=0;
 588 #endif
 589         s_nbio_test=0;
 590
 591         argc--;
 592         argv++;
 593
 594         while (argc >= 1)
 595                 {
 596                 if      ((strcmp(*argv,"-port") == 0) ||
 597                          (strcmp(*argv,"-accept") == 0))
 598                         {
 599                         if (--argc < 1) goto bad;
 600                         if (!extract_port(*(++argv),&port))
 601                                 goto bad;
 602                         }
 603                 else if (strcmp(*argv,"-verify") == 0)
 604                         {
 605                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 606                         if (--argc < 1) goto bad;
 607                         verify_depth=atoi(*(++argv));
 608                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 609                         }
 610                 else if (strcmp(*argv,"-Verify") == 0)
 611                         {
 612                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 613                                 SSL_VERIFY_CLIENT_ONCE;
 614                         if (--argc < 1) goto bad;
 615                         verify_depth=atoi(*(++argv));
 616                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 617                         }
 618                 else if (strcmp(*argv,"-context") == 0)
 619                         {
 620                         if (--argc < 1) goto bad;
 621                         context= (unsigned char *)*(++argv);
 622                         }
 623                 else if (strcmp(*argv,"-cert") == 0)
 624                         {
 625                         if (--argc < 1) goto bad;
 626                         s_cert_file= *(++argv);
 627                         }
 628                 else if (strcmp(*argv,"-certform") == 0)
 629                         {
 630                         if (--argc < 1) goto bad;
 631                         s_cert_format = str2fmt(*(++argv));
 632                         }
 633                 else if (strcmp(*argv,"-key") == 0)
 634                         {
 635                         if (--argc < 1) goto bad;
 636                         s_key_file= *(++argv);
 637                         }
 638                 else if (strcmp(*argv,"-keyform") == 0)
 639                         {
 640                         if (--argc < 1) goto bad;
 641                         s_key_format = str2fmt(*(++argv));
 642                         }
 643                 else if (strcmp(*argv,"-pass") == 0)
 644                         {
 645                         if (--argc < 1) goto bad;
 646                         passarg = *(++argv);
 647                         }
 648                 else if (strcmp(*argv,"-dhparam") == 0)
 649                         {
 650                         if (--argc < 1) goto bad;
 651                         dhfile = *(++argv);
 652                         }
 653 #ifndef OPENSSL_NO_ECDH
 654                 else if (strcmp(*argv,"-named_curve") == 0)
 655                         {
 656                         if (--argc < 1) goto bad;
 657                         named_curve = *(++argv);
 658                         }
 659 #endif
 660                 else if (strcmp(*argv,"-dcertform") == 0)
 661                         {
 662                         if (--argc < 1) goto bad;
 663                         s_dcert_format = str2fmt(*(++argv));
 664                         }
 665                 else if (strcmp(*argv,"-dcert") == 0)
 666                         {
 667                         if (--argc < 1) goto bad;
 668                         s_dcert_file= *(++argv);
 669                         }
 670                 else if (strcmp(*argv,"-dkeyform") == 0)
 671                         {
 672                         if (--argc < 1) goto bad;
 673                         s_dkey_format = str2fmt(*(++argv));
 674                         }
 675                 else if (strcmp(*argv,"-dpass") == 0)
 676                         {
 677                         if (--argc < 1) goto bad;
 678                         dpassarg = *(++argv);
 679                         }
 680                 else if (strcmp(*argv,"-dkey") == 0)
 681                         {
 682                         if (--argc < 1) goto bad;
 683                         s_dkey_file= *(++argv);
 684                         }
 685                 else if (strcmp(*argv,"-nocert") == 0)
 686                         {
 687                         nocert=1;
 688                         }
 689                 else if (strcmp(*argv,"-CApath") == 0)
 690                         {
 691                         if (--argc < 1) goto bad;
 692                         CApath= *(++argv);
 693                         }
 694                 else if (strcmp(*argv,"-crl_check") == 0)
 695                         {
 696                         vflags |= X509_V_FLAG_CRL_CHECK;
 697                         }
 698                 else if (strcmp(*argv,"-crl_check") == 0)
 699                         {
 700                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 701                         }
 702                 else if (strcmp(*argv,"-serverpref") == 0)
 703                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
 704                 else if (strcmp(*argv,"-cipher") == 0)
 705                         {
 706                         if (--argc < 1) goto bad;
 707                         cipher= *(++argv);
 708                         }
 709                 else if (strcmp(*argv,"-CAfile") == 0)
 710                         {
 711                         if (--argc < 1) goto bad;
 712                         CAfile= *(++argv);
 713                         }
 714 #ifdef FIONBIO
 715                 else if (strcmp(*argv,"-nbio") == 0)
 716                         { s_nbio=1; }
 717 #endif
 718                 else if (strcmp(*argv,"-nbio_test") == 0)
 719                         {
 720 #ifdef FIONBIO
 721                         s_nbio=1;
 722 #endif
 723                         s_nbio_test=1;
 724                         }
 725                 else if (strcmp(*argv,"-debug") == 0)
 726                         { s_debug=1; }
 727                 else if (strcmp(*argv,"-msg") == 0)
 728                         { s_msg=1; }
 729                 else if (strcmp(*argv,"-hack") == 0)
 730                         { hack=1; }
 731                 else if (strcmp(*argv,"-state") == 0)
 732                         { state=1; }
 733                 else if (strcmp(*argv,"-crlf") == 0)
 734                         { s_crlf=1; }
 735                 else if (strcmp(*argv,"-quiet") == 0)
 736                         { s_quiet=1; }
 737                 else if (strcmp(*argv,"-bugs") == 0)
 738                         { bugs=1; }
 739                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 740                         { no_tmp_rsa=1; }
 741                 else if (strcmp(*argv,"-no_dhe") == 0)
 742                         { no_dhe=1; }
 743                 else if (strcmp(*argv,"-no_ecdhe") == 0)
 744                         { no_ecdhe=1; }
 745                 else if (strcmp(*argv,"-www") == 0)
 746                         { www=1; }
 747                 else if (strcmp(*argv,"-WWW") == 0)
 748                         { www=2; }
 749                 else if (strcmp(*argv,"-HTTP") == 0)
 750                         { www=3; }
 751                 else if (strcmp(*argv,"-no_ssl2") == 0)
 752                         { off|=SSL_OP_NO_SSLv2; }
 753                 else if (strcmp(*argv,"-no_ssl3") == 0)
 754                         { off|=SSL_OP_NO_SSLv3; }
 755                 else if (strcmp(*argv,"-no_tls1") == 0)
 756                         { off|=SSL_OP_NO_TLSv1; }
 757 #ifndef OPENSSL_NO_SSL2
 758                 else if (strcmp(*argv,"-ssl2") == 0)
 759                         { meth=SSLv2_server_method(); }
 760 #endif
 761 #ifndef OPENSSL_NO_SSL3
 762                 else if (strcmp(*argv,"-ssl3") == 0)
 763                         { meth=SSLv3_server_method(); }
 764 #endif
 765 #ifndef OPENSSL_NO_TLS1
 766                 else if (strcmp(*argv,"-tls1") == 0)
 767                         { meth=TLSv1_server_method(); }
 768 #endif
 769 #ifndef OPENSSL_NO_DTLS1
 770                 else if (strcmp(*argv,"-dtls1") == 0)
 771                         {
 772                         meth=DTLSv1_server_method();
 773                         sock_type = SOCK_DGRAM;
 774                         }
 775                 else if (strcmp(*argv,"-timeout") == 0)
 776                         enable_timeouts = 1;
 777                 else if (strcmp(*argv,"-mtu") == 0)
 778                         {
 779                         if (--argc < 1) goto bad;
 780                         mtu = atol(*(++argv));
 781                         }
 782                 else if (strcmp(*argv, "-chain") == 0)
 783                         cert_chain = 1;
 784 #endif
 785                 else if (strcmp(*argv, "-id_prefix") == 0)
 786                         {
 787                         if (--argc < 1) goto bad;
 788                         session_id_prefix = *(++argv);
 789                         }
 790 #ifndef OPENSSL_NO_ENGINE
 791                 else if (strcmp(*argv,"-engine") == 0)
 792                         {
 793                         if (--argc < 1) goto bad;
 794                         engine_id= *(++argv);
 795                         }
 796 #endif
 797                 else if (strcmp(*argv,"-rand") == 0)
 798                         {
 799                         if (--argc < 1) goto bad;
 800                         inrand= *(++argv);
 801                         }
 802                 else
 803                         {
 804                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 805                         badop=1;
 806                         break;
 807                         }
 808                 argc--;
 809                 argv++;
 810                 }
 811         if (badop)
 812                 {
 813 bad:
 814                 sv_usage();
 815                 goto end;
 816                 }
 817
 818         SSL_load_error_strings();
 819         OpenSSL_add_ssl_algorithms();
 820
 821 #ifndef OPENSSL_NO_ENGINE
 822         e = setup_engine(bio_err, engine_id, 1);
 823 #endif
 824
 825         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
 826                 {
 827                 BIO_printf(bio_err, "Error getting password\n");
 828                 goto end;
 829                 }
 830
 831
 832         if (s_key_file == NULL)
 833                 s_key_file = s_cert_file;
 834
 835         if (nocert == 0)
 836                 {
 837                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
 838                        "server certificate private key file");
 839                 if (!s_key)
 840                         {
 841                         ERR_print_errors(bio_err);
 842                         goto end;
 843                         }
 844
 845                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
 846                         NULL, e, "server certificate file");
 847
 848                 if (!s_cert)
 849                         {
 850                         ERR_print_errors(bio_err);
 851                         goto end;
 852                         }
 853                 }
 854
 855         if (s_dcert_file)
 856                 {
 857
 858                 if (s_dkey_file == NULL)
 859                         s_dkey_file = s_dcert_file;
 860
 861                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
 862                                 0, dpass, e,
 863                                "second certificate private key file");
 864                 if (!s_dkey)
 865                         {
 866                         ERR_print_errors(bio_err);
 867                         goto end;
 868                         }
 869
 870                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
 871                                 NULL, e, "second server certificate file");
 872
 873                 if (!s_dcert)
 874                         {
 875                         ERR_print_errors(bio_err);
 876                         goto end;
 877                         }
 878
 879                 }
 880
 881         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 882                 && !RAND_status())
 883                 {
 884                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 885                 }
 886         if (inrand != NULL)
 887                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 888                         app_RAND_load_files(inrand));
 889
 890         if (bio_s_out == NULL)
 891                 {
 892                 if (s_quiet && !s_debug && !s_msg)
 893                         {
 894                         bio_s_out=BIO_new(BIO_s_null());
 895                         }
 896                 else
 897                         {
 898                         if (bio_s_out == NULL)
 899                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 900                         }
 901                 }
 902
 903 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
 904         if (nocert)
 905 #endif
 906                 {
 907                 s_cert_file=NULL;
 908                 s_key_file=NULL;
 909                 s_dcert_file=NULL;
 910                 s_dkey_file=NULL;
 911                 }
 912
 913         ctx=SSL_CTX_new(meth);
 914         if (ctx == NULL)
 915                 {
 916                 ERR_print_errors(bio_err);
 917                 goto end;
 918                 }
 919         if (session_id_prefix)
 920                 {
 921                 if(strlen(session_id_prefix) >= 32)
 922                         BIO_printf(bio_err,
 923 "warning: id_prefix is too long, only one new session will be possible\n");
 924                 else if(strlen(session_id_prefix) >= 16)
 925                         BIO_printf(bio_err,
 926 "warning: id_prefix is too long if you use SSLv2\n");
 927                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
 928                         {
 929                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
 930                         ERR_print_errors(bio_err);
 931                         goto end;
 932                         }
 933                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
 934                 }
 935         SSL_CTX_set_quiet_shutdown(ctx,1);
 936         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 937         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 938         SSL_CTX_set_options(ctx,off);
 939         /* DTLS: partial reads end up discarding unread UDP bytes :-(
 940          * Setting read ahead solves this problem.
 941          */
 942         if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
 943
 944         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 945
 946         SSL_CTX_sess_set_cache_size(ctx,128);
 947
 948 #if 0
 949         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 950 #endif
 951
 952 #if 0
 953         if (s_cert_file == NULL)
 954                 {
 955                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 956                 goto end;
 957                 }
 958 #endif
 959
 960         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 961                 (!SSL_CTX_set_default_verify_paths(ctx)))
 962                 {
 963                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 964                 ERR_print_errors(bio_err);
 965                 /* goto end; */
 966                 }
 967         store = SSL_CTX_get_cert_store(ctx);
 968         X509_STORE_set_flags(store, vflags);
 969
 970 #ifndef OPENSSL_NO_DH
 971         if (!no_dhe)
 972                 {
 973                 DH *dh=NULL;
 974
 975                 if (dhfile)
 976                         dh = load_dh_param(dhfile);
 977                 else if (s_cert_file)
 978                         dh = load_dh_param(s_cert_file);
 979
 980                 if (dh != NULL)
 981                         {
 982                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 983                         }
 984                 else
 985                         {
 986                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 987                         dh=get_dh512();
 988                         }
 989                 (void)BIO_flush(bio_s_out);
 990
 991                 SSL_CTX_set_tmp_dh(ctx,dh);
 992                 DH_free(dh);
 993                 }
 994 #endif
 995
 996 #ifndef OPENSSL_NO_ECDH
 997         if (!no_ecdhe)
 998                 {
 999                 EC_KEY *ecdh=NULL;
1000
1001                 if (named_curve)
1002                         {
1003                         int nid = OBJ_sn2nid(named_curve);
1004
1005                         if (nid == 0)
1006                                 {
1007                                 BIO_printf(bio_err, "unknown curve name (%s)\n",
1008                                         named_curve);
1009                                 goto end;
1010                                 }
1011                         ecdh = EC_KEY_new_by_curve_name(nid);
1012                         if (ecdh == NULL)
1013                                 {
1014                                 BIO_printf(bio_err, "unable to create curve (%s)\n",
1015                                         named_curve);
1016                                 goto end;
1017                                 }
1018                         }
1019
1020                 if (ecdh != NULL)
1021                         {
1022                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1023                         }
1024                 else
1025                         {
1026                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1027                         ecdh = EC_KEY_new_by_curve_name(NID_sect163r2);
1028                         if (ecdh == NULL)
1029                                 {
1030                                 BIO_printf(bio_err, "unable to create curve (sect163r2)\n");
1031                                 goto end;
1032                                 }
1033                         }
1034                 (void)BIO_flush(bio_s_out);
1035
1036                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1037                 EC_KEY_free(ecdh);
1038                 }
1039 #endif
1040
1041         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1042                 goto end;
1043         if (s_dcert != NULL)
1044                 {
1045                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1046                         goto end;
1047                 }
1048
1049 #ifndef OPENSSL_NO_RSA
1050 #if 1
1051         if (!no_tmp_rsa)
1052                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1053 #else
1054         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1055                 {
1056                 RSA *rsa;
1057
1058                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1059                 BIO_flush(bio_s_out);
1060
1061                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1062
1063                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1064                         {
1065                         ERR_print_errors(bio_err);
1066                         goto end;
1067                         }
1068                 RSA_free(rsa);
1069                 BIO_printf(bio_s_out,"\n");
1070                 }
1071 #endif
1072 #endif
1073
1074         if (cipher != NULL)
1075                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1076                 BIO_printf(bio_err,"error setting cipher list\n");
1077                 ERR_print_errors(bio_err);
1078                 goto end;
1079         }
1080         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1081         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1082                 sizeof s_server_session_id_context);
1083
1084         if (CAfile != NULL)
1085             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1086
1087         BIO_printf(bio_s_out,"ACCEPT\n");
1088         if (www)
1089                 do_server(port,sock_type,&accept_socket,www_body, context);
1090         else
1091                 do_server(port,sock_type,&accept_socket,sv_body, context);
1092         print_stats(bio_s_out,ctx);
1093         ret=0;
1094 end:
1095         if (ctx != NULL) SSL_CTX_free(ctx);
1096         if (s_cert)
1097                 X509_free(s_cert);
1098         if (s_dcert)
1099                 X509_free(s_dcert);
1100         if (s_key)
1101                 EVP_PKEY_free(s_key);
1102         if (s_dkey)
1103                 EVP_PKEY_free(s_dkey);
1104         if (pass)
1105                 OPENSSL_free(pass);
1106         if (dpass)
1107                 OPENSSL_free(dpass);
1108         if (bio_s_out != NULL)
1109                 {
1110         BIO_free(bio_s_out);
1111                 bio_s_out=NULL;
1112                 }
1113         apps_shutdown();
1114         OPENSSL_EXIT(ret);
1115         }
1116
1117 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1118         {
1119         BIO_printf(bio,"%4ld items in the session cache\n",
1120                 SSL_CTX_sess_number(ssl_ctx));
1121         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1122                 SSL_CTX_sess_connect(ssl_ctx));
1123         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1124                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1125         BIO_printf(bio,"%4ld client connects that finished\n",
1126                 SSL_CTX_sess_connect_good(ssl_ctx));
1127         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1128                 SSL_CTX_sess_accept(ssl_ctx));
1129         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1130                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1131         BIO_printf(bio,"%4ld server accepts that finished\n",
1132                 SSL_CTX_sess_accept_good(ssl_ctx));
1133         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1134         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1135         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1136         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1137         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1138                 SSL_CTX_sess_cache_full(ssl_ctx),
1139                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1140         }
1141
1142 static int sv_body(char *hostname, int s, unsigned char *context)
1143         {
1144         char *buf=NULL;
1145         fd_set readfds;
1146         int ret=1,width;
1147         int k,i;
1148         unsigned long l;
1149         SSL *con=NULL;
1150         BIO *sbio;
1151 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1152         struct timeval tv;
1153 #endif
1154
1155         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1156                 {
1157                 BIO_printf(bio_err,"out of memory\n");
1158                 goto err;
1159                 }
1160 #ifdef FIONBIO
1161         if (s_nbio)
1162                 {
1163                 unsigned long sl=1;
1164
1165                 if (!s_quiet)
1166                         BIO_printf(bio_err,"turning on non blocking io\n");
1167                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1168                         ERR_print_errors(bio_err);
1169                 }
1170 #endif
1171
1172         if (con == NULL) {
1173                 con=SSL_new(ctx);
1174 #ifndef OPENSSL_NO_KRB5
1175                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1176                         {
1177                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
1178                                                                 KRB5SVC);
1179                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
1180                                                                 KRB5KEYTAB);
1181                         }
1182 #endif  /* OPENSSL_NO_KRB5 */
1183                 if(context)
1184                       SSL_set_session_id_context(con, context,
1185                                                  strlen((char *)context));
1186         }
1187         SSL_clear(con);
1188
1189         if (SSL_version(con) == DTLS1_VERSION)
1190                 {
1191                 struct timeval timeout;
1192
1193                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1194
1195                 if ( enable_timeouts)
1196                         {
1197                         timeout.tv_sec = 0;
1198                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1199                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1200
1201                         timeout.tv_sec = 0;
1202                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1203                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1204                         }
1205
1206
1207                 if ( mtu > 0)
1208                         {
1209                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1210                         SSL_set_mtu(con, mtu);
1211                         }
1212                 else
1213                         /* want to do MTU discovery */
1214                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1215
1216         /* turn on cookie exchange */
1217         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
1218                 }
1219         else
1220                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1221
1222         if (s_nbio_test)
1223                 {
1224                 BIO *test;
1225
1226                 test=BIO_new(BIO_f_nbio_test());
1227                 sbio=BIO_push(test,sbio);
1228                 }
1229         SSL_set_bio(con,sbio,sbio);
1230         SSL_set_accept_state(con);
1231         /* SSL_set_fd(con,s); */
1232
1233         if (s_debug)
1234                 {
1235                 con->debug=1;
1236                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1237                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
1238                 }
1239         if (s_msg)
1240                 {
1241                 SSL_set_msg_callback(con, msg_cb);
1242                 SSL_set_msg_callback_arg(con, bio_s_out);
1243                 }
1244
1245         width=s+1;
1246         for (;;)
1247                 {
1248                 int read_from_terminal;
1249                 int read_from_sslcon;
1250
1251                 read_from_terminal = 0;
1252                 read_from_sslcon = SSL_pending(con);
1253
1254                 if (!read_from_sslcon)
1255                         {
1256                         FD_ZERO(&readfds);
1257 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1258                         FD_SET(fileno(stdin),&readfds);
1259 #endif
1260                         FD_SET(s,&readfds);
1261                         /* Note: under VMS with SOCKETSHR the second parameter is
1262                          * currently of type (int *) whereas under other systems
1263                          * it is (void *) if you don't have a cast it will choke
1264                          * the compiler: if you do have a cast then you can either
1265                          * go for (int *) or (void *).
1266                          */
1267 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1268                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
1269                          * on sockets. As a workaround we timeout the select every
1270                          * second and check for any keypress. In a proper Windows
1271                          * application we wouldn't do this because it is inefficient.
1272                          */
1273                         tv.tv_sec = 1;
1274                         tv.tv_usec = 0;
1275                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
1276                         if((i < 0) || (!i && !_kbhit() ) )continue;
1277                         if(_kbhit())
1278                                 read_from_terminal = 1;
1279 #else
1280                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
1281                         if (i <= 0) continue;
1282                         if (FD_ISSET(fileno(stdin),&readfds))
1283                                 read_from_terminal = 1;
1284 #endif
1285                         if (FD_ISSET(s,&readfds))
1286                                 read_from_sslcon = 1;
1287                         }
1288                 if (read_from_terminal)
1289                         {
1290                         if (s_crlf)
1291                                 {
1292                                 int j, lf_num;
1293
1294                                 i=read(fileno(stdin), buf, bufsize/2);
1295                                 lf_num = 0;
1296                                 /* both loops are skipped when i <= 0 */
1297                                 for (j = 0; j < i; j++)
1298                                         if (buf[j] == '\n')
1299                                                 lf_num++;
1300                                 for (j = i-1; j >= 0; j--)
1301                                         {
1302                                         buf[j+lf_num] = buf[j];
1303                                         if (buf[j] == '\n')
1304                                                 {
1305                                                 lf_num--;
1306                                                 i++;
1307                                                 buf[j+lf_num] = '\r';
1308                                                 }
1309                                         }
1310                                 assert(lf_num == 0);
1311                                 }
1312                         else
1313                                 i=read(fileno(stdin),buf,bufsize);
1314                         if (!s_quiet)
1315                                 {
1316                                 if ((i <= 0) || (buf[0] == 'Q'))
1317                                         {
1318                                         BIO_printf(bio_s_out,"DONE\n");
1319                                         SHUTDOWN(s);
1320                                         close_accept_socket();
1321                                         ret= -11;
1322                                         goto err;
1323                                         }
1324                                 if ((i <= 0) || (buf[0] == 'q'))
1325                                         {
1326                                         BIO_printf(bio_s_out,"DONE\n");
1327                                         if (SSL_version(con) != DTLS1_VERSION)
1328                         SHUTDOWN(s);
1329         /*                              close_accept_socket();
1330                                         ret= -11;*/
1331                                         goto err;
1332                                         }
1333                                 if ((buf[0] == 'r') &&
1334                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1335                                         {
1336                                         SSL_renegotiate(con);
1337                                         i=SSL_do_handshake(con);
1338                                         printf("SSL_do_handshake -> %d\n",i);
1339                                         i=0; /*13; */
1340                                         continue;
1341                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1342                                         }
1343                                 if ((buf[0] == 'R') &&
1344                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1345                                         {
1346                                         SSL_set_verify(con,
1347                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1348                                         SSL_renegotiate(con);
1349                                         i=SSL_do_handshake(con);
1350                                         printf("SSL_do_handshake -> %d\n",i);
1351                                         i=0; /* 13; */
1352                                         continue;
1353                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1354                                         }
1355                                 if (buf[0] == 'P')
1356                                         {
1357                                         static const char *str="Lets print some clear text\n";
1358                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1359                                         }
1360                                 if (buf[0] == 'S')
1361                                         {
1362                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1363                                         }
1364                                 }
1365 #ifdef CHARSET_EBCDIC
1366                         ebcdic2ascii(buf,buf,i);
1367 #endif
1368                         l=k=0;
1369                         for (;;)
1370                                 {
1371                                 /* should do a select for the write */
1372 #ifdef RENEG
1373 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1374 #endif
1375                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1376                                 switch (SSL_get_error(con,k))
1377                                         {
1378                                 case SSL_ERROR_NONE:
1379                                         break;
1380                                 case SSL_ERROR_WANT_WRITE:
1381                                 case SSL_ERROR_WANT_READ:
1382                                 case SSL_ERROR_WANT_X509_LOOKUP:
1383                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1384                                         break;
1385                                 case SSL_ERROR_SYSCALL:
1386                                 case SSL_ERROR_SSL:
1387                                         BIO_printf(bio_s_out,"ERROR\n");
1388                                         ERR_print_errors(bio_err);
1389                                         ret=1;
1390                                         goto err;
1391                                         /* break; */
1392                                 case SSL_ERROR_ZERO_RETURN:
1393                                         BIO_printf(bio_s_out,"DONE\n");
1394                                         ret=1;
1395                                         goto err;
1396                                         }
1397                                 l+=k;
1398                                 i-=k;
1399                                 if (i <= 0) break;
1400                                 }
1401                         }
1402                 if (read_from_sslcon)
1403                         {
1404                         if (!SSL_is_init_finished(con))
1405                                 {
1406                                 i=init_ssl_connection(con);
1407
1408                                 if (i < 0)
1409                                         {
1410                                         ret=0;
1411                                         goto err;
1412                                         }
1413                                 else if (i == 0)
1414                                         {
1415                                         ret=1;
1416                                         goto err;
1417                                         }
1418                                 }
1419                         else
1420                                 {
1421 again:
1422                                 i=SSL_read(con,(char *)buf,bufsize);
1423                                 switch (SSL_get_error(con,i))
1424                                         {
1425                                 case SSL_ERROR_NONE:
1426 #ifdef CHARSET_EBCDIC
1427                                         ascii2ebcdic(buf,buf,i);
1428 #endif
1429                                         write(fileno(stdout),buf,
1430                                                 (unsigned int)i);
1431                                         if (SSL_pending(con)) goto again;
1432                                         break;
1433                                 case SSL_ERROR_WANT_WRITE:
1434                                 case SSL_ERROR_WANT_READ:
1435                                 case SSL_ERROR_WANT_X509_LOOKUP:
1436                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1437                                         break;
1438                                 case SSL_ERROR_SYSCALL:
1439                                 case SSL_ERROR_SSL:
1440                                         BIO_printf(bio_s_out,"ERROR\n");
1441                                         ERR_print_errors(bio_err);
1442                                         ret=1;
1443                                         goto err;
1444                                 case SSL_ERROR_ZERO_RETURN:
1445                                         BIO_printf(bio_s_out,"DONE\n");
1446                                         ret=1;
1447                                         goto err;
1448                                         }
1449                                 }
1450                         }
1451                 }
1452 err:
1453         BIO_printf(bio_s_out,"shutting down SSL\n");
1454 #if 1
1455         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1456 #else
1457         SSL_shutdown(con);
1458 #endif
1459         if (con != NULL) SSL_free(con);
1460         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1461         if (buf != NULL)
1462                 {
1463                 OPENSSL_cleanse(buf,bufsize);
1464                 OPENSSL_free(buf);
1465                 }
1466         if (ret >= 0)
1467                 BIO_printf(bio_s_out,"ACCEPT\n");
1468         return(ret);
1469         }
1470
1471 static void close_accept_socket(void)
1472         {
1473         BIO_printf(bio_err,"shutdown accept socket\n");
1474         if (accept_socket >= 0)
1475                 {
1476                 SHUTDOWN2(accept_socket);
1477                 }
1478         }
1479
1480 static int init_ssl_connection(SSL *con)
1481         {
1482         int i;
1483         const char *str;
1484         X509 *peer;
1485         long verify_error;
1486         MS_STATIC char buf[BUFSIZ];
1487
1488         if ((i=SSL_accept(con)) <= 0)
1489                 {
1490                 if (BIO_sock_should_retry(i))
1491                         {
1492                         BIO_printf(bio_s_out,"DELAY\n");
1493                         return(1);
1494                         }
1495
1496                 BIO_printf(bio_err,"ERROR\n");
1497                 verify_error=SSL_get_verify_result(con);
1498                 if (verify_error != X509_V_OK)
1499                         {
1500                         BIO_printf(bio_err,"verify error:%s\n",
1501                                 X509_verify_cert_error_string(verify_error));
1502                         }
1503                 else
1504                         ERR_print_errors(bio_err);
1505                 return(0);
1506                 }
1507
1508         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1509
1510         peer=SSL_get_peer_certificate(con);
1511         if (peer != NULL)
1512                 {
1513                 BIO_printf(bio_s_out,"Client certificate\n");
1514                 PEM_write_bio_X509(bio_s_out,peer);
1515                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
1516                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1517                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
1518                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1519                 X509_free(peer);
1520                 }
1521
1522         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
1523                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1524         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1525         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1526         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1527         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1528                 TLS1_FLAGS_TLS_PADDING_BUG)
1529                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1530 #ifndef OPENSSL_NO_KRB5
1531         if (con->kssl_ctx->client_princ != NULL)
1532                 {
1533                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
1534                         con->kssl_ctx->client_princ);
1535                 }
1536 #endif /* OPENSSL_NO_KRB5 */
1537         return(1);
1538         }
1539
1540 #ifndef OPENSSL_NO_DH
1541 static DH *load_dh_param(const char *dhfile)
1542         {
1543         DH *ret=NULL;
1544         BIO *bio;
1545
1546         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1547                 goto err;
1548         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1549 err:
1550         if (bio != NULL) BIO_free(bio);
1551         return(ret);
1552         }
1553 #endif
1554
1555 #if 0
1556 static int load_CA(SSL_CTX *ctx, char *file)
1557         {
1558         FILE *in;
1559         X509 *x=NULL;
1560
1561         if ((in=fopen(file,"r")) == NULL)
1562                 return(0);
1563
1564         for (;;)
1565                 {
1566                 if (PEM_read_X509(in,&x,NULL) == NULL)
1567                         break;
1568                 SSL_CTX_add_client_CA(ctx,x);
1569                 }
1570         if (x != NULL) X509_free(x);
1571         fclose(in);
1572         return(1);
1573         }
1574 #endif
1575
1576 static int www_body(char *hostname, int s, unsigned char *context)
1577         {
1578         char *buf=NULL;
1579         int ret=1;
1580         int i,j,k,blank,dot;
1581         struct stat st_buf;
1582         SSL *con;
1583         SSL_CIPHER *c;
1584         BIO *io,*ssl_bio,*sbio;
1585         long total_bytes;
1586
1587         buf=OPENSSL_malloc(bufsize);
1588         if (buf == NULL) return(0);
1589         io=BIO_new(BIO_f_buffer());
1590         ssl_bio=BIO_new(BIO_f_ssl());
1591         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1592
1593 #ifdef FIONBIO
1594         if (s_nbio)
1595                 {
1596                 unsigned long sl=1;
1597
1598                 if (!s_quiet)
1599                         BIO_printf(bio_err,"turning on non blocking io\n");
1600                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1601                         ERR_print_errors(bio_err);
1602                 }
1603 #endif
1604
1605         /* lets make the output buffer a reasonable size */
1606         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1607
1608         if ((con=SSL_new(ctx)) == NULL) goto err;
1609 #ifndef OPENSSL_NO_KRB5
1610         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1611                 {
1612                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
1613                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
1614                 }
1615 #endif  /* OPENSSL_NO_KRB5 */
1616         if(context) SSL_set_session_id_context(con, context,
1617                                                strlen((char *)context));
1618
1619         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1620         if (s_nbio_test)
1621                 {
1622                 BIO *test;
1623
1624                 test=BIO_new(BIO_f_nbio_test());
1625                 sbio=BIO_push(test,sbio);
1626                 }
1627         SSL_set_bio(con,sbio,sbio);
1628         SSL_set_accept_state(con);
1629
1630         /* SSL_set_fd(con,s); */
1631         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1632         BIO_push(io,ssl_bio);
1633 #ifdef CHARSET_EBCDIC
1634         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1635 #endif
1636
1637         if (s_debug)
1638                 {
1639                 con->debug=1;
1640                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1641                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
1642                 }
1643         if (s_msg)
1644                 {
1645                 SSL_set_msg_callback(con, msg_cb);
1646                 SSL_set_msg_callback_arg(con, bio_s_out);
1647                 }
1648
1649         blank=0;
1650         for (;;)
1651                 {
1652                 if (hack)
1653                         {
1654                         i=SSL_accept(con);
1655
1656                         switch (SSL_get_error(con,i))
1657                                 {
1658                         case SSL_ERROR_NONE:
1659                                 break;
1660                         case SSL_ERROR_WANT_WRITE:
1661                         case SSL_ERROR_WANT_READ:
1662                         case SSL_ERROR_WANT_X509_LOOKUP:
1663                                 continue;
1664                         case SSL_ERROR_SYSCALL:
1665                         case SSL_ERROR_SSL:
1666                         case SSL_ERROR_ZERO_RETURN:
1667                                 ret=1;
1668                                 goto err;
1669                                 /* break; */
1670                                 }
1671
1672                         SSL_renegotiate(con);
1673                         SSL_write(con,NULL,0);
1674                         }
1675
1676                 i=BIO_gets(io,buf,bufsize-1);
1677                 if (i < 0) /* error */
1678                         {
1679                         if (!BIO_should_retry(io))
1680                                 {
1681                                 if (!s_quiet)
1682                                         ERR_print_errors(bio_err);
1683                                 goto err;
1684                                 }
1685                         else
1686                                 {
1687                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1688 #if defined(OPENSSL_SYS_NETWARE)
1689             delay(1000);
1690 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
1691                                 sleep(1);
1692 #endif
1693                                 continue;
1694                                 }
1695                         }
1696                 else if (i == 0) /* end of input */
1697                         {
1698                         ret=1;
1699                         goto end;
1700                         }
1701
1702                 /* else we have data */
1703                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1704                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1705                         {
1706                         char *p;
1707                         X509 *peer;
1708                         STACK_OF(SSL_CIPHER) *sk;
1709                         static const char *space="                          ";
1710
1711                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1712                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1713                         BIO_puts(io,"<pre>\n");
1714 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1715                         BIO_puts(io,"\n");
1716                         for (i=0; i<local_argc; i++)
1717                                 {
1718                                 BIO_puts(io,local_argv[i]);
1719                                 BIO_write(io," ",1);
1720                                 }
1721                         BIO_puts(io,"\n");
1722
1723                         /* The following is evil and should not really
1724                          * be done */
1725                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1726                         sk=SSL_get_ciphers(con);
1727                         j=sk_SSL_CIPHER_num(sk);
1728                         for (i=0; i<j; i++)
1729                                 {
1730                                 c=sk_SSL_CIPHER_value(sk,i);
1731                                 BIO_printf(io,"%-11s:%-25s",
1732                                         SSL_CIPHER_get_version(c),
1733                                         SSL_CIPHER_get_name(c));
1734                                 if ((((i+1)%2) == 0) && (i+1 != j))
1735                                         BIO_puts(io,"\n");
1736                                 }
1737                         BIO_puts(io,"\n");
1738                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1739                         if (p != NULL)
1740                                 {
1741                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1742                                 j=i=0;
1743                                 while (*p)
1744                                         {
1745                                         if (*p == ':')
1746                                                 {
1747                                                 BIO_write(io,space,26-j);
1748                                                 i++;
1749                                                 j=0;
1750                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1751                                                 }
1752                                         else
1753                                                 {
1754                                                 BIO_write(io,p,1);
1755                                                 j++;
1756                                                 }
1757                                         p++;
1758                                         }
1759                                 BIO_puts(io,"\n");
1760                                 }
1761                         BIO_printf(io,((con->hit)
1762                                 ?"---\nReused, "
1763                                 :"---\nNew, "));
1764                         c=SSL_get_current_cipher(con);
1765                         BIO_printf(io,"%s, Cipher is %s\n",
1766                                 SSL_CIPHER_get_version(c),
1767                                 SSL_CIPHER_get_name(c));
1768                         SSL_SESSION_print(io,SSL_get_session(con));
1769                         BIO_printf(io,"---\n");
1770                         print_stats(io,SSL_get_SSL_CTX(con));
1771                         BIO_printf(io,"---\n");
1772                         peer=SSL_get_peer_certificate(con);
1773                         if (peer != NULL)
1774                                 {
1775                                 BIO_printf(io,"Client certificate\n");
1776                                 X509_print(io,peer);
1777                                 PEM_write_bio_X509(io,peer);
1778                                 }
1779                         else
1780                                 BIO_puts(io,"no client certificate available\n");
1781                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1782                         break;
1783                         }
1784                 else if ((www == 2 || www == 3)
1785                          && (strncmp("GET /",buf,5) == 0))
1786                         {
1787                         BIO *file;
1788                         char *p,*e;
1789                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1790
1791                         /* skip the '/' */
1792                         p= &(buf[5]);
1793
1794                         dot = 1;
1795                         for (e=p; *e != '\0'; e++)
1796                                 {
1797                                 if (e[0] == ' ')
1798                                         break;
1799
1800                                 switch (dot)
1801                                         {
1802                                 case 1:
1803                                         dot = (e[0] == '.') ? 2 : 0;
1804                                         break;
1805                                 case 2:
1806                                         dot = (e[0] == '.') ? 3 : 0;
1807                                         break;
1808                                 case 3:
1809                                         dot = (e[0] == '/') ? -1 : 0;
1810                                         break;
1811                                         }
1812                                 if (dot == 0)
1813                                         dot = (e[0] == '/') ? 1 : 0;
1814                                 }
1815                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
1816
1817                         if (*e == '\0')
1818                                 {
1819                                 BIO_puts(io,text);
1820                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1821                                 break;
1822                                 }
1823                         *e='\0';
1824
1825                         if (dot)
1826                                 {
1827                                 BIO_puts(io,text);
1828                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1829                                 break;
1830                                 }
1831
1832                         if (*p == '/')
1833                                 {
1834                                 BIO_puts(io,text);
1835                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1836                                 break;
1837                                 }
1838
1839 #if 0
1840                         /* append if a directory lookup */
1841                         if (e[-1] == '/')
1842                                 strcat(p,"index.html");
1843 #endif
1844
1845                         /* if a directory, do the index thang */
1846                         if (stat(p,&st_buf) < 0)
1847                                 {
1848                                 BIO_puts(io,text);
1849                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1850                                 ERR_print_errors(io);
1851                                 break;
1852                                 }
1853                         if (S_ISDIR(st_buf.st_mode))
1854                                 {
1855 #if 0 /* must check buffer size */
1856                                 strcat(p,"/index.html");
1857 #else
1858                                 BIO_puts(io,text);
1859                                 BIO_printf(io,"'%s' is a directory\r\n",p);
1860                                 break;
1861 #endif
1862                                 }
1863
1864                         if ((file=BIO_new_file(p,"r")) == NULL)
1865                                 {
1866                                 BIO_puts(io,text);
1867                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1868                                 ERR_print_errors(io);
1869                                 break;
1870                                 }
1871
1872                         if (!s_quiet)
1873                                 BIO_printf(bio_err,"FILE:%s\n",p);
1874
1875                         if (www == 2)
1876                                 {
1877                                 i=strlen(p);
1878                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1879                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1880                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1881                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1882                                 else
1883                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1884                                 }
1885                         /* send the file */
1886                         total_bytes=0;
1887                         for (;;)
1888                                 {
1889                                 i=BIO_read(file,buf,bufsize);
1890                                 if (i <= 0) break;
1891
1892 #ifdef RENEG
1893                                 total_bytes+=i;
1894                                 fprintf(stderr,"%d\n",i);
1895                                 if (total_bytes > 3*1024)
1896                                         {
1897                                         total_bytes=0;
1898                                         fprintf(stderr,"RENEGOTIATE\n");
1899                                         SSL_renegotiate(con);
1900                                         }
1901 #endif
1902
1903                                 for (j=0; j<i; )
1904                                         {
1905 #ifdef RENEG
1906 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1907 #endif
1908                                         k=BIO_write(io,&(buf[j]),i-j);
1909                                         if (k <= 0)
1910                                                 {
1911                                                 if (!BIO_should_retry(io))
1912                                                         goto write_error;
1913                                                 else
1914                                                         {
1915                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1916                                                         }
1917                                                 }
1918                                         else
1919                                                 {
1920                                                 j+=k;
1921                                                 }
1922                                         }
1923                                 }
1924 write_error:
1925                         BIO_free(file);
1926                         break;
1927                         }
1928                 }
1929
1930         for (;;)
1931                 {
1932                 i=(int)BIO_flush(io);
1933                 if (i <= 0)
1934                         {
1935                         if (!BIO_should_retry(io))
1936                                 break;
1937                         }
1938                 else
1939                         break;
1940                 }
1941 end:
1942 #if 1
1943         /* make sure we re-use sessions */
1944         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1945 #else
1946         /* This kills performance */
1947 /*      SSL_shutdown(con); A shutdown gets sent in the
1948  *      BIO_free_all(io) procession */
1949 #endif
1950
1951 err:
1952
1953         if (ret >= 0)
1954                 BIO_printf(bio_s_out,"ACCEPT\n");
1955
1956         if (buf != NULL) OPENSSL_free(buf);
1957         if (io != NULL) BIO_free_all(io);
1958 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1959         return(ret);
1960         }
1961
1962 #ifndef OPENSSL_NO_RSA
1963 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1964         {
1965         BIGNUM *bn = NULL;
1966         static RSA *rsa_tmp=NULL;
1967
1968         if (!rsa_tmp && ((bn = BN_new()) == NULL))
1969                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
1970         if (!rsa_tmp && bn)
1971                 {
1972                 if (!s_quiet)
1973                         {
1974                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1975                         (void)BIO_flush(bio_err);
1976                         }
1977                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
1978                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
1979                         {
1980                         if(rsa_tmp) RSA_free(rsa_tmp);
1981                         rsa_tmp = NULL;
1982                         }
1983                 if (!s_quiet)
1984                         {
1985                         BIO_printf(bio_err,"\n");
1986                         (void)BIO_flush(bio_err);
1987                         }
1988                 BN_free(bn);
1989                 }
1990         return(rsa_tmp);
1991         }
1992 #endif
1993
1994 #define MAX_SESSION_ID_ATTEMPTS 10
1995 static int generate_session_id(const SSL *ssl, unsigned char *id,
1996                                 unsigned int *id_len)
1997         {
1998         unsigned int count = 0;
1999         do      {
2000                 RAND_pseudo_bytes(id, *id_len);
2001                 /* Prefix the session_id with the required prefix. NB: If our
2002                  * prefix is too long, clip it - but there will be worse effects
2003                  * anyway, eg. the server could only possibly create 1 session
2004                  * ID (ie. the prefix!) so all future session negotiations will
2005                  * fail due to conflicts. */
2006                 memcpy(id, session_id_prefix,
2007                         (strlen(session_id_prefix) < *id_len) ?
2008                         strlen(session_id_prefix) : *id_len);
2009                 }
2010         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
2011                 (++count < MAX_SESSION_ID_ATTEMPTS));
2012         if(count >= MAX_SESSION_ID_ATTEMPTS)
2013                 return 0;
2014         return 1;
2015         }