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