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