apps/s_server.c

   1 /* apps/s_server.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111
 112 #include <assert.h>
 113 #include <stdio.h>
 114 #include <stdlib.h>
 115 #include <string.h>
 116 #include <sys/types.h>
 117 #include <sys/stat.h>
 118 #include <openssl/e_os2.h>
 119 #ifdef OPENSSL_NO_STDIO
 120 #define APPS_WIN16
 121 #endif
 122
 123 /* With IPv6, it looks like Digital has mixed up the proper order of
 124    recursive header file inclusion, resulting in the compiler complaining
 125    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 126    is needed to have fileno() declared correctly...  So let's define u_int */
 127 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 128 #define __U_INT
 129 typedef unsigned int u_int;
 130 #endif
 131
 132 #include <openssl/lhash.h>
 133 #include <openssl/bn.h>
 134 #define USE_SOCKETS
 135 #include "apps.h"
 136 #include <openssl/err.h>
 137 #include <openssl/pem.h>
 138 #include <openssl/x509.h>
 139 #include <openssl/ssl.h>
 140 #include <openssl/rand.h>
 141 #include "s_apps.h"
 142
 143 #ifdef OPENSSL_SYS_WINDOWS
 144 #include <conio.h>
 145 #endif
 146
 147 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 148 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 149 #undef FIONBIO
 150 #endif
 151
 152 #ifndef OPENSSL_NO_RSA
 153 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 154 #endif
 155 static int sv_body(char *hostname, int s, unsigned char *context);
 156 static int www_body(char *hostname, int s, unsigned char *context);
 157 static void close_accept_socket(void );
 158 static void sv_usage(void);
 159 static int init_ssl_connection(SSL *s);
 160 static void print_stats(BIO *bp,SSL_CTX *ctx);
 161 static int generate_session_id(const SSL *ssl, unsigned char *id,
 162                                 unsigned int *id_len);
 163 #ifndef OPENSSL_NO_DH
 164 static DH *load_dh_param(char *dhfile);
 165 static DH *get_dh512(void);
 166 #endif
 167 #ifdef MONOLITH
 168 static void s_server_init(void);
 169 #endif
 170
 171 #ifndef S_ISDIR
 172 # if defined(_S_IFMT) && defined(_S_IFDIR)
 173 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 174 # else
 175 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 176 # endif
 177 #endif
 178
 179 #ifndef OPENSSL_NO_DH
 180 static unsigned char dh512_p[]={
 181         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 182         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 183         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 184         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 185         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 186         0x47,0x74,0xE8,0x33,
 187         };
 188 static unsigned char dh512_g[]={
 189         0x02,
 190         };
 191
 192 static DH *get_dh512(void)
 193         {
 194         DH *dh=NULL;
 195
 196         if ((dh=DH_new()) == NULL) return(NULL);
 197         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 198         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 199         if ((dh->p == NULL) || (dh->g == NULL))
 200                 return(NULL);
 201         return(dh);
 202         }
 203 #endif
 204
 205 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 206
 207 #undef BUFSIZZ
 208 #define BUFSIZZ 16*1024
 209 static int bufsize=BUFSIZZ;
 210 static int accept_socket= -1;
 211
 212 #define TEST_CERT       "server.pem"
 213 #undef PROG
 214 #define PROG            s_server_main
 215
 216 extern int verify_depth;
 217
 218 static char *cipher=NULL;
 219 static int s_server_verify=SSL_VERIFY_NONE;
 220 static int s_server_session_id_context = 1; /* anything will do */
 221 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 222 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 223 #ifdef FIONBIO
 224 static int s_nbio=0;
 225 #endif
 226 static int s_nbio_test=0;
 227 int s_crlf=0;
 228 static SSL_CTX *ctx=NULL;
 229 static int www=0;
 230
 231 static BIO *bio_s_out=NULL;
 232 static int s_debug=0;
 233 static int s_msg=0;
 234 static int s_quiet=0;
 235
 236 static int hack=0;
 237 static char *engine_id=NULL;
 238 static const char *session_id_prefix=NULL;
 239
 240 #ifdef MONOLITH
 241 static void s_server_init(void)
 242         {
 243         accept_socket=-1;
 244         cipher=NULL;
 245         s_server_verify=SSL_VERIFY_NONE;
 246         s_dcert_file=NULL;
 247         s_dkey_file=NULL;
 248         s_cert_file=TEST_CERT;
 249         s_key_file=NULL;
 250 #ifdef FIONBIO
 251         s_nbio=0;
 252 #endif
 253         s_nbio_test=0;
 254         ctx=NULL;
 255         www=0;
 256
 257         bio_s_out=NULL;
 258         s_debug=0;
 259         s_msg=0;
 260         s_quiet=0;
 261         hack=0;
 262         engine_id=NULL;
 263         }
 264 #endif
 265
 266 static void sv_usage(void)
 267         {
 268         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 269         BIO_printf(bio_err,"\n");
 270         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 271         BIO_printf(bio_err," -context arg  - set session ID context\n");
 272         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 273         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 274         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 275         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 276         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
 277         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 278         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 279         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 280         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 281         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 282 #ifdef FIONBIO
 283         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 284 #endif
 285         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 286         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 287         BIO_printf(bio_err," -debug        - Print more output\n");
 288         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 289         BIO_printf(bio_err," -state        - Print the SSL states\n");
 290         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 291         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 292         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 293         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 294         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 295         BIO_printf(bio_err," -quiet        - No server output\n");
 296         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 297         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 298         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 299         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 300         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 301         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 302         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 303 #ifndef OPENSSL_NO_DH
 304         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 305 #endif
 306         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 307         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 308         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 309         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 310         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 311         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 312         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 313         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 314         }
 315
 316 static int local_argc=0;
 317 static char **local_argv;
 318
 319 #ifdef CHARSET_EBCDIC
 320 static int ebcdic_new(BIO *bi);
 321 static int ebcdic_free(BIO *a);
 322 static int ebcdic_read(BIO *b, char *out, int outl);
 323 static int ebcdic_write(BIO *b, char *in, int inl);
 324 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
 325 static int ebcdic_gets(BIO *bp, char *buf, int size);
 326 static int ebcdic_puts(BIO *bp, char *str);
 327
 328 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 329 static BIO_METHOD methods_ebcdic=
 330         {
 331         BIO_TYPE_EBCDIC_FILTER,
 332         "EBCDIC/ASCII filter",
 333         ebcdic_write,
 334         ebcdic_read,
 335         ebcdic_puts,
 336         ebcdic_gets,
 337         ebcdic_ctrl,
 338         ebcdic_new,
 339         ebcdic_free,
 340         };
 341
 342 typedef struct
 343 {
 344         size_t  alloced;
 345         char    buff[1];
 346 } EBCDIC_OUTBUFF;
 347
 348 BIO_METHOD *BIO_f_ebcdic_filter()
 349 {
 350         return(&methods_ebcdic);
 351 }
 352
 353 static int ebcdic_new(BIO *bi)
 354 {
 355         EBCDIC_OUTBUFF *wbuf;
 356
 357         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 358         wbuf->alloced = 1024;
 359         wbuf->buff[0] = '\0';
 360
 361         bi->ptr=(char *)wbuf;
 362         bi->init=1;
 363         bi->flags=0;
 364         return(1);
 365 }
 366
 367 static int ebcdic_free(BIO *a)
 368 {
 369         if (a == NULL) return(0);
 370         if (a->ptr != NULL)
 371                 OPENSSL_free(a->ptr);
 372         a->ptr=NULL;
 373         a->init=0;
 374         a->flags=0;
 375         return(1);
 376 }
 377
 378 static int ebcdic_read(BIO *b, char *out, int outl)
 379 {
 380         int ret=0;
 381
 382         if (out == NULL || outl == 0) return(0);
 383         if (b->next_bio == NULL) return(0);
 384
 385         ret=BIO_read(b->next_bio,out,outl);
 386         if (ret > 0)
 387                 ascii2ebcdic(out,out,ret);
 388         return(ret);
 389 }
 390
 391 static int ebcdic_write(BIO *b, char *in, int inl)
 392 {
 393         EBCDIC_OUTBUFF *wbuf;
 394         int ret=0;
 395         int num;
 396         unsigned char n;
 397
 398         if ((in == NULL) || (inl <= 0)) return(0);
 399         if (b->next_bio == NULL) return(0);
 400
 401         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 402
 403         if (inl > (num = wbuf->alloced))
 404         {
 405                 num = num + num;  /* double the size */
 406                 if (num < inl)
 407                         num = inl;
 408                 OPENSSL_free(wbuf);
 409                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 410
 411                 wbuf->alloced = num;
 412                 wbuf->buff[0] = '\0';
 413
 414                 b->ptr=(char *)wbuf;
 415         }
 416
 417         ebcdic2ascii(wbuf->buff, in, inl);
 418
 419         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 420
 421         return(ret);
 422 }
 423
 424 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
 425 {
 426         long ret;
 427
 428         if (b->next_bio == NULL) return(0);
 429         switch (cmd)
 430         {
 431         case BIO_CTRL_DUP:
 432                 ret=0L;
 433                 break;
 434         default:
 435                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 436                 break;
 437         }
 438         return(ret);
 439 }
 440
 441 static int ebcdic_gets(BIO *bp, char *buf, int size)
 442 {
 443         int i, ret;
 444         if (bp->next_bio == NULL) return(0);
 445 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 446         for (i=0; i<size-1; ++i)
 447         {
 448                 ret = ebcdic_read(bp,&buf[i],1);
 449                 if (ret <= 0)
 450                         break;
 451                 else if (buf[i] == '\n')
 452                 {
 453                         ++i;
 454                         break;
 455                 }
 456         }
 457         if (i < size)
 458                 buf[i] = '\0';
 459         return (ret < 0 && i == 0) ? ret : i;
 460 }
 461
 462 static int ebcdic_puts(BIO *bp, char *str)
 463 {
 464         if (bp->next_bio == NULL) return(0);
 465         return ebcdic_write(bp, str, strlen(str));
 466 }
 467 #endif
 468
 469 int MAIN(int, char **);
 470
 471 int MAIN(int argc, char *argv[])
 472         {
 473         X509_STORE *store = NULL;
 474         int vflags = 0;
 475         short port=PORT;
 476         char *CApath=NULL,*CAfile=NULL;
 477         char *context = NULL;
 478         char *dhfile = NULL;
 479         int badop=0,bugs=0;
 480         int ret=1;
 481         int off=0;
 482         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 483         int state=0;
 484         SSL_METHOD *meth=NULL;
 485         ENGINE *e=NULL;
 486         char *inrand=NULL;
 487
 488 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 489         meth=SSLv23_server_method();
 490 #elif !defined(OPENSSL_NO_SSL3)
 491         meth=SSLv3_server_method();
 492 #elif !defined(OPENSSL_NO_SSL2)
 493         meth=SSLv2_server_method();
 494 #endif
 495
 496         local_argc=argc;
 497         local_argv=argv;
 498
 499         apps_startup();
 500 #ifdef MONOLITH
 501         s_server_init();
 502 #endif
 503
 504         if (bio_err == NULL)
 505                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 506
 507         verify_depth=0;
 508 #ifdef FIONBIO
 509         s_nbio=0;
 510 #endif
 511         s_nbio_test=0;
 512
 513         argc--;
 514         argv++;
 515
 516         while (argc >= 1)
 517                 {
 518                 if      ((strcmp(*argv,"-port") == 0) ||
 519                          (strcmp(*argv,"-accept") == 0))
 520                         {
 521                         if (--argc < 1) goto bad;
 522                         if (!extract_port(*(++argv),&port))
 523                                 goto bad;
 524                         }
 525                 else if (strcmp(*argv,"-verify") == 0)
 526                         {
 527                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 528                         if (--argc < 1) goto bad;
 529                         verify_depth=atoi(*(++argv));
 530                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 531                         }
 532                 else if (strcmp(*argv,"-Verify") == 0)
 533                         {
 534                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 535                                 SSL_VERIFY_CLIENT_ONCE;
 536                         if (--argc < 1) goto bad;
 537                         verify_depth=atoi(*(++argv));
 538                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 539                         }
 540                 else if (strcmp(*argv,"-context") == 0)
 541                         {
 542                         if (--argc < 1) goto bad;
 543                         context= *(++argv);
 544                         }
 545                 else if (strcmp(*argv,"-cert") == 0)
 546                         {
 547                         if (--argc < 1) goto bad;
 548                         s_cert_file= *(++argv);
 549                         }
 550                 else if (strcmp(*argv,"-key") == 0)
 551                         {
 552                         if (--argc < 1) goto bad;
 553                         s_key_file= *(++argv);
 554                         }
 555                 else if (strcmp(*argv,"-dhparam") == 0)
 556                         {
 557                         if (--argc < 1) goto bad;
 558                         dhfile = *(++argv);
 559                         }
 560                 else if (strcmp(*argv,"-dcert") == 0)
 561                         {
 562                         if (--argc < 1) goto bad;
 563                         s_dcert_file= *(++argv);
 564                         }
 565                 else if (strcmp(*argv,"-dkey") == 0)
 566                         {
 567                         if (--argc < 1) goto bad;
 568                         s_dkey_file= *(++argv);
 569                         }
 570                 else if (strcmp(*argv,"-nocert") == 0)
 571                         {
 572                         nocert=1;
 573                         }
 574                 else if (strcmp(*argv,"-CApath") == 0)
 575                         {
 576                         if (--argc < 1) goto bad;
 577                         CApath= *(++argv);
 578                         }
 579                 else if (strcmp(*argv,"-crl_check") == 0)
 580                         {
 581                         vflags |= X509_V_FLAG_CRL_CHECK;
 582                         }
 583                 else if (strcmp(*argv,"-crl_check") == 0)
 584                         {
 585                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 586                         }
 587                 else if (strcmp(*argv,"-serverpref") == 0)
 588                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
 589                 else if (strcmp(*argv,"-cipher") == 0)
 590                         {
 591                         if (--argc < 1) goto bad;
 592                         cipher= *(++argv);
 593                         }
 594                 else if (strcmp(*argv,"-CAfile") == 0)
 595                         {
 596                         if (--argc < 1) goto bad;
 597                         CAfile= *(++argv);
 598                         }
 599 #ifdef FIONBIO
 600                 else if (strcmp(*argv,"-nbio") == 0)
 601                         { s_nbio=1; }
 602 #endif
 603                 else if (strcmp(*argv,"-nbio_test") == 0)
 604                         {
 605 #ifdef FIONBIO
 606                         s_nbio=1;
 607 #endif
 608                         s_nbio_test=1;
 609                         }
 610                 else if (strcmp(*argv,"-debug") == 0)
 611                         { s_debug=1; }
 612                 else if (strcmp(*argv,"-msg") == 0)
 613                         { s_msg=1; }
 614                 else if (strcmp(*argv,"-hack") == 0)
 615                         { hack=1; }
 616                 else if (strcmp(*argv,"-state") == 0)
 617                         { state=1; }
 618                 else if (strcmp(*argv,"-crlf") == 0)
 619                         { s_crlf=1; }
 620                 else if (strcmp(*argv,"-quiet") == 0)
 621                         { s_quiet=1; }
 622                 else if (strcmp(*argv,"-bugs") == 0)
 623                         { bugs=1; }
 624                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 625                         { no_tmp_rsa=1; }
 626                 else if (strcmp(*argv,"-no_dhe") == 0)
 627                         { no_dhe=1; }
 628                 else if (strcmp(*argv,"-www") == 0)
 629                         { www=1; }
 630                 else if (strcmp(*argv,"-WWW") == 0)
 631                         { www=2; }
 632                 else if (strcmp(*argv,"-HTTP") == 0)
 633                         { www=3; }
 634                 else if (strcmp(*argv,"-no_ssl2") == 0)
 635                         { off|=SSL_OP_NO_SSLv2; }
 636                 else if (strcmp(*argv,"-no_ssl3") == 0)
 637                         { off|=SSL_OP_NO_SSLv3; }
 638                 else if (strcmp(*argv,"-no_tls1") == 0)
 639                         { off|=SSL_OP_NO_TLSv1; }
 640 #ifndef OPENSSL_NO_SSL2
 641                 else if (strcmp(*argv,"-ssl2") == 0)
 642                         { meth=SSLv2_server_method(); }
 643 #endif
 644 #ifndef OPENSSL_NO_SSL3
 645                 else if (strcmp(*argv,"-ssl3") == 0)
 646                         { meth=SSLv3_server_method(); }
 647 #endif
 648 #ifndef OPENSSL_NO_TLS1
 649                 else if (strcmp(*argv,"-tls1") == 0)
 650                         { meth=TLSv1_server_method(); }
 651 #endif
 652                 else if (strcmp(*argv, "-id_prefix") == 0)
 653                         {
 654                         if (--argc < 1) goto bad;
 655                         session_id_prefix = *(++argv);
 656                         }
 657                 else if (strcmp(*argv,"-engine") == 0)
 658                         {
 659                         if (--argc < 1) goto bad;
 660                         engine_id= *(++argv);
 661                         }
 662                 else if (strcmp(*argv,"-rand") == 0)
 663                         {
 664                         if (--argc < 1) goto bad;
 665                         inrand= *(++argv);
 666                         }
 667                 else
 668                         {
 669                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 670                         badop=1;
 671                         break;
 672                         }
 673                 argc--;
 674                 argv++;
 675                 }
 676         if (badop)
 677                 {
 678 bad:
 679                 sv_usage();
 680                 goto end;
 681                 }
 682
 683         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 684                 && !RAND_status())
 685                 {
 686                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 687                 }
 688         if (inrand != NULL)
 689                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 690                         app_RAND_load_files(inrand));
 691
 692         if (bio_s_out == NULL)
 693                 {
 694                 if (s_quiet && !s_debug && !s_msg)
 695                         {
 696                         bio_s_out=BIO_new(BIO_s_null());
 697                         }
 698                 else
 699                         {
 700                         if (bio_s_out == NULL)
 701                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 702                         }
 703                 }
 704
 705 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
 706         if (nocert)
 707 #endif
 708                 {
 709                 s_cert_file=NULL;
 710                 s_key_file=NULL;
 711                 s_dcert_file=NULL;
 712                 s_dkey_file=NULL;
 713                 }
 714
 715         SSL_load_error_strings();
 716         OpenSSL_add_ssl_algorithms();
 717
 718         e = setup_engine(bio_err, engine_id, 1);
 719
 720         ctx=SSL_CTX_new(meth);
 721         if (ctx == NULL)
 722                 {
 723                 ERR_print_errors(bio_err);
 724                 goto end;
 725                 }
 726         if (session_id_prefix)
 727                 {
 728                 if(strlen(session_id_prefix) >= 32)
 729                         BIO_printf(bio_err,
 730 "warning: id_prefix is too long, only one new session will be possible\n");
 731                 else if(strlen(session_id_prefix) >= 16)
 732                         BIO_printf(bio_err,
 733 "warning: id_prefix is too long if you use SSLv2\n");
 734                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
 735                         {
 736                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
 737                         ERR_print_errors(bio_err);
 738                         goto end;
 739                         }
 740                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
 741                 }
 742         SSL_CTX_set_quiet_shutdown(ctx,1);
 743         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 744         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 745         SSL_CTX_set_options(ctx,off);
 746
 747         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 748
 749         SSL_CTX_sess_set_cache_size(ctx,128);
 750
 751 #if 0
 752         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 753 #endif
 754
 755 #if 0
 756         if (s_cert_file == NULL)
 757                 {
 758                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 759                 goto end;
 760                 }
 761 #endif
 762
 763         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 764                 (!SSL_CTX_set_default_verify_paths(ctx)))
 765                 {
 766                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 767                 ERR_print_errors(bio_err);
 768                 /* goto end; */
 769                 }
 770         store = SSL_CTX_get_cert_store(ctx);
 771         X509_STORE_set_flags(store, vflags);
 772
 773 #ifndef OPENSSL_NO_DH
 774         if (!no_dhe)
 775                 {
 776                 DH *dh=NULL;
 777
 778                 if (dhfile)
 779                         dh = load_dh_param(dhfile);
 780                 else if (s_cert_file)
 781                         dh = load_dh_param(s_cert_file);
 782
 783                 if (dh != NULL)
 784                         {
 785                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 786                         }
 787                 else
 788                         {
 789                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 790                         dh=get_dh512();
 791                         }
 792                 (void)BIO_flush(bio_s_out);
 793
 794                 SSL_CTX_set_tmp_dh(ctx,dh);
 795                 DH_free(dh);
 796                 }
 797 #endif
 798
 799         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 800                 goto end;
 801         if (s_dcert_file != NULL)
 802                 {
 803                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 804                         goto end;
 805                 }
 806
 807 #ifndef OPENSSL_NO_RSA
 808 #if 1
 809         if (!no_tmp_rsa)
 810                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 811 #else
 812         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 813                 {
 814                 RSA *rsa;
 815
 816                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 817                 BIO_flush(bio_s_out);
 818
 819                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 820
 821                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 822                         {
 823                         ERR_print_errors(bio_err);
 824                         goto end;
 825                         }
 826                 RSA_free(rsa);
 827                 BIO_printf(bio_s_out,"\n");
 828                 }
 829 #endif
 830 #endif
 831
 832         if (cipher != NULL)
 833                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 834                 BIO_printf(bio_err,"error setting cipher list\n");
 835                 ERR_print_errors(bio_err);
 836                 goto end;
 837         }
 838         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 839         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 840                 sizeof s_server_session_id_context);
 841
 842         if (CAfile != NULL)
 843             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 844
 845         BIO_printf(bio_s_out,"ACCEPT\n");
 846         if (www)
 847                 do_server(port,&accept_socket,www_body, context);
 848         else
 849                 do_server(port,&accept_socket,sv_body, context);
 850         print_stats(bio_s_out,ctx);
 851         ret=0;
 852 end:
 853         if (ctx != NULL) SSL_CTX_free(ctx);
 854         if (bio_s_out != NULL)
 855                 {
 856                 BIO_free(bio_s_out);
 857                 bio_s_out=NULL;
 858                 }
 859         apps_shutdown();
 860         EXIT(ret);
 861         }
 862
 863 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 864         {
 865         BIO_printf(bio,"%4ld items in the session cache\n",
 866                 SSL_CTX_sess_number(ssl_ctx));
 867         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 868                 SSL_CTX_sess_connect(ssl_ctx));
 869         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 870                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 871         BIO_printf(bio,"%4d client connects that finished\n",
 872                 SSL_CTX_sess_connect_good(ssl_ctx));
 873         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 874                 SSL_CTX_sess_accept(ssl_ctx));
 875         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 876                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 877         BIO_printf(bio,"%4d server accepts that finished\n",
 878                 SSL_CTX_sess_accept_good(ssl_ctx));
 879         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 880         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 881         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 882         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 883         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 884                 SSL_CTX_sess_cache_full(ssl_ctx),
 885                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 886         }
 887
 888 static int sv_body(char *hostname, int s, unsigned char *context)
 889         {
 890         char *buf=NULL;
 891         fd_set readfds;
 892         int ret=1,width;
 893         int k,i;
 894         unsigned long l;
 895         SSL *con=NULL;
 896         BIO *sbio;
 897 #ifdef OPENSSL_SYS_WINDOWS
 898         struct timeval tv;
 899 #endif
 900
 901         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
 902                 {
 903                 BIO_printf(bio_err,"out of memory\n");
 904                 goto err;
 905                 }
 906 #ifdef FIONBIO
 907         if (s_nbio)
 908                 {
 909                 unsigned long sl=1;
 910
 911                 if (!s_quiet)
 912                         BIO_printf(bio_err,"turning on non blocking io\n");
 913                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 914                         ERR_print_errors(bio_err);
 915                 }
 916 #endif
 917
 918         if (con == NULL) {
 919                 con=SSL_new(ctx);
 920 #ifndef OPENSSL_NO_KRB5
 921                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
 922                         {
 923                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
 924                                                                 KRB5SVC);
 925                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
 926                                                                 KRB5KEYTAB);
 927                         }
 928 #endif  /* OPENSSL_NO_KRB5 */
 929                 if(context)
 930                       SSL_set_session_id_context(con, context,
 931                                                  strlen((char *)context));
 932         }
 933         SSL_clear(con);
 934
 935         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 936         if (s_nbio_test)
 937                 {
 938                 BIO *test;
 939
 940                 test=BIO_new(BIO_f_nbio_test());
 941                 sbio=BIO_push(test,sbio);
 942                 }
 943         SSL_set_bio(con,sbio,sbio);
 944         SSL_set_accept_state(con);
 945         /* SSL_set_fd(con,s); */
 946
 947         if (s_debug)
 948                 {
 949                 con->debug=1;
 950                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 951                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 952                 }
 953         if (s_msg)
 954                 {
 955                 SSL_set_msg_callback(con, msg_cb);
 956                 SSL_set_msg_callback_arg(con, bio_s_out);
 957                 }
 958
 959         width=s+1;
 960         for (;;)
 961                 {
 962                 int read_from_terminal;
 963                 int read_from_sslcon;
 964
 965                 read_from_terminal = 0;
 966                 read_from_sslcon = SSL_pending(con);
 967
 968                 if (!read_from_sslcon)
 969                         {
 970                         FD_ZERO(&readfds);
 971 #ifndef OPENSSL_SYS_WINDOWS
 972                         FD_SET(fileno(stdin),&readfds);
 973 #endif
 974                         FD_SET(s,&readfds);
 975                         /* Note: under VMS with SOCKETSHR the second parameter is
 976                          * currently of type (int *) whereas under other systems
 977                          * it is (void *) if you don't have a cast it will choke
 978                          * the compiler: if you do have a cast then you can either
 979                          * go for (int *) or (void *).
 980                          */
 981 #ifdef OPENSSL_SYS_WINDOWS
 982                         /* Under Windows we can't select on stdin: only
 983                          * on sockets. As a workaround we timeout the select every
 984                          * second and check for any keypress. In a proper Windows
 985                          * application we wouldn't do this because it is inefficient.
 986                          */
 987                         tv.tv_sec = 1;
 988                         tv.tv_usec = 0;
 989                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
 990                         if((i < 0) || (!i && !_kbhit() ) )continue;
 991                         if(_kbhit())
 992                                 read_from_terminal = 1;
 993 #else
 994                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
 995                         if (i <= 0) continue;
 996                         if (FD_ISSET(fileno(stdin),&readfds))
 997                                 read_from_terminal = 1;
 998 #endif
 999                         if (FD_ISSET(s,&readfds))
1000                                 read_from_sslcon = 1;
1001                         }
1002                 if (read_from_terminal)
1003                         {
1004                         if (s_crlf)
1005                                 {
1006                                 int j, lf_num;
1007
1008                                 i=read(fileno(stdin), buf, bufsize/2);
1009                                 lf_num = 0;
1010                                 /* both loops are skipped when i <= 0 */
1011                                 for (j = 0; j < i; j++)
1012                                         if (buf[j] == '\n')
1013                                                 lf_num++;
1014                                 for (j = i-1; j >= 0; j--)
1015                                         {
1016                                         buf[j+lf_num] = buf[j];
1017                                         if (buf[j] == '\n')
1018                                                 {
1019                                                 lf_num--;
1020                                                 i++;
1021                                                 buf[j+lf_num] = '\r';
1022                                                 }
1023                                         }
1024                                 assert(lf_num == 0);
1025                                 }
1026                         else
1027                                 i=read(fileno(stdin),buf,bufsize);
1028                         if (!s_quiet)
1029                                 {
1030                                 if ((i <= 0) || (buf[0] == 'Q'))
1031                                         {
1032                                         BIO_printf(bio_s_out,"DONE\n");
1033                                         SHUTDOWN(s);
1034                                         close_accept_socket();
1035                                         ret= -11;
1036                                         goto err;
1037                                         }
1038                                 if ((i <= 0) || (buf[0] == 'q'))
1039                                         {
1040                                         BIO_printf(bio_s_out,"DONE\n");
1041                                         SHUTDOWN(s);
1042         /*                              close_accept_socket();
1043                                         ret= -11;*/
1044                                         goto err;
1045                                         }
1046                                 if ((buf[0] == 'r') &&
1047                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1048                                         {
1049                                         SSL_renegotiate(con);
1050                                         i=SSL_do_handshake(con);
1051                                         printf("SSL_do_handshake -> %d\n",i);
1052                                         i=0; /*13; */
1053                                         continue;
1054                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1055                                         }
1056                                 if ((buf[0] == 'R') &&
1057                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1058                                         {
1059                                         SSL_set_verify(con,
1060                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1061                                         SSL_renegotiate(con);
1062                                         i=SSL_do_handshake(con);
1063                                         printf("SSL_do_handshake -> %d\n",i);
1064                                         i=0; /* 13; */
1065                                         continue;
1066                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1067                                         }
1068                                 if (buf[0] == 'P')
1069                                         {
1070                                         static char *str="Lets print some clear text\n";
1071                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1072                                         }
1073                                 if (buf[0] == 'S')
1074                                         {
1075                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1076                                         }
1077                                 }
1078 #ifdef CHARSET_EBCDIC
1079                         ebcdic2ascii(buf,buf,i);
1080 #endif
1081                         l=k=0;
1082                         for (;;)
1083                                 {
1084                                 /* should do a select for the write */
1085 #ifdef RENEG
1086 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1087 #endif
1088                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1089                                 switch (SSL_get_error(con,k))
1090                                         {
1091                                 case SSL_ERROR_NONE:
1092                                         break;
1093                                 case SSL_ERROR_WANT_WRITE:
1094                                 case SSL_ERROR_WANT_READ:
1095                                 case SSL_ERROR_WANT_X509_LOOKUP:
1096                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1097                                         break;
1098                                 case SSL_ERROR_SYSCALL:
1099                                 case SSL_ERROR_SSL:
1100                                         BIO_printf(bio_s_out,"ERROR\n");
1101                                         ERR_print_errors(bio_err);
1102                                         ret=1;
1103                                         goto err;
1104                                         /* break; */
1105                                 case SSL_ERROR_ZERO_RETURN:
1106                                         BIO_printf(bio_s_out,"DONE\n");
1107                                         ret=1;
1108                                         goto err;
1109                                         }
1110                                 l+=k;
1111                                 i-=k;
1112                                 if (i <= 0) break;
1113                                 }
1114                         }
1115                 if (read_from_sslcon)
1116                         {
1117                         if (!SSL_is_init_finished(con))
1118                                 {
1119                                 i=init_ssl_connection(con);
1120
1121                                 if (i < 0)
1122                                         {
1123                                         ret=0;
1124                                         goto err;
1125                                         }
1126                                 else if (i == 0)
1127                                         {
1128                                         ret=1;
1129                                         goto err;
1130                                         }
1131                                 }
1132                         else
1133                                 {
1134 again:
1135                                 i=SSL_read(con,(char *)buf,bufsize);
1136                                 switch (SSL_get_error(con,i))
1137                                         {
1138                                 case SSL_ERROR_NONE:
1139 #ifdef CHARSET_EBCDIC
1140                                         ascii2ebcdic(buf,buf,i);
1141 #endif
1142                                         write(fileno(stdout),buf,
1143                                                 (unsigned int)i);
1144                                         if (SSL_pending(con)) goto again;
1145                                         break;
1146                                 case SSL_ERROR_WANT_WRITE:
1147                                 case SSL_ERROR_WANT_READ:
1148                                 case SSL_ERROR_WANT_X509_LOOKUP:
1149                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1150                                         break;
1151                                 case SSL_ERROR_SYSCALL:
1152                                 case SSL_ERROR_SSL:
1153                                         BIO_printf(bio_s_out,"ERROR\n");
1154                                         ERR_print_errors(bio_err);
1155                                         ret=1;
1156                                         goto err;
1157                                 case SSL_ERROR_ZERO_RETURN:
1158                                         BIO_printf(bio_s_out,"DONE\n");
1159                                         ret=1;
1160                                         goto err;
1161                                         }
1162                                 }
1163                         }
1164                 }
1165 err:
1166         BIO_printf(bio_s_out,"shutting down SSL\n");
1167 #if 1
1168         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1169 #else
1170         SSL_shutdown(con);
1171 #endif
1172         if (con != NULL) SSL_free(con);
1173         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1174         if (buf != NULL)
1175                 {
1176                 memset(buf,0,bufsize);
1177                 OPENSSL_free(buf);
1178                 }
1179         if (ret >= 0)
1180                 BIO_printf(bio_s_out,"ACCEPT\n");
1181         return(ret);
1182         }
1183
1184 static void close_accept_socket(void)
1185         {
1186         BIO_printf(bio_err,"shutdown accept socket\n");
1187         if (accept_socket >= 0)
1188                 {
1189                 SHUTDOWN2(accept_socket);
1190                 }
1191         }
1192
1193 static int init_ssl_connection(SSL *con)
1194         {
1195         int i;
1196         const char *str;
1197         X509 *peer;
1198         long verify_error;
1199         MS_STATIC char buf[BUFSIZ];
1200
1201         if ((i=SSL_accept(con)) <= 0)
1202                 {
1203                 if (BIO_sock_should_retry(i))
1204                         {
1205                         BIO_printf(bio_s_out,"DELAY\n");
1206                         return(1);
1207                         }
1208
1209                 BIO_printf(bio_err,"ERROR\n");
1210                 verify_error=SSL_get_verify_result(con);
1211                 if (verify_error != X509_V_OK)
1212                         {
1213                         BIO_printf(bio_err,"verify error:%s\n",
1214                                 X509_verify_cert_error_string(verify_error));
1215                         }
1216                 else
1217                         ERR_print_errors(bio_err);
1218                 return(0);
1219                 }
1220
1221         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1222
1223         peer=SSL_get_peer_certificate(con);
1224         if (peer != NULL)
1225                 {
1226                 BIO_printf(bio_s_out,"Client certificate\n");
1227                 PEM_write_bio_X509(bio_s_out,peer);
1228                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1229                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1230                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1231                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1232                 X509_free(peer);
1233                 }
1234
1235         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1236                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1237         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1238         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1239         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1240         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1241                 TLS1_FLAGS_TLS_PADDING_BUG)
1242                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1243
1244         return(1);
1245         }
1246
1247 #ifndef OPENSSL_NO_DH
1248 static DH *load_dh_param(char *dhfile)
1249         {
1250         DH *ret=NULL;
1251         BIO *bio;
1252
1253         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1254                 goto err;
1255         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1256 err:
1257         if (bio != NULL) BIO_free(bio);
1258         return(ret);
1259         }
1260 #endif
1261
1262 #if 0
1263 static int load_CA(SSL_CTX *ctx, char *file)
1264         {
1265         FILE *in;
1266         X509 *x=NULL;
1267
1268         if ((in=fopen(file,"r")) == NULL)
1269                 return(0);
1270
1271         for (;;)
1272                 {
1273                 if (PEM_read_X509(in,&x,NULL) == NULL)
1274                         break;
1275                 SSL_CTX_add_client_CA(ctx,x);
1276                 }
1277         if (x != NULL) X509_free(x);
1278         fclose(in);
1279         return(1);
1280         }
1281 #endif
1282
1283 static int www_body(char *hostname, int s, unsigned char *context)
1284         {
1285         char *buf=NULL;
1286         int ret=1;
1287         int i,j,k,blank,dot;
1288         struct stat st_buf;
1289         SSL *con;
1290         SSL_CIPHER *c;
1291         BIO *io,*ssl_bio,*sbio;
1292         long total_bytes;
1293
1294         buf=OPENSSL_malloc(bufsize);
1295         if (buf == NULL) return(0);
1296         io=BIO_new(BIO_f_buffer());
1297         ssl_bio=BIO_new(BIO_f_ssl());
1298         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1299
1300 #ifdef FIONBIO
1301         if (s_nbio)
1302                 {
1303                 unsigned long sl=1;
1304
1305                 if (!s_quiet)
1306                         BIO_printf(bio_err,"turning on non blocking io\n");
1307                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1308                         ERR_print_errors(bio_err);
1309                 }
1310 #endif
1311
1312         /* lets make the output buffer a reasonable size */
1313         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1314
1315         if ((con=SSL_new(ctx)) == NULL) goto err;
1316 #ifndef OPENSSL_NO_KRB5
1317         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1318                 {
1319                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
1320                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
1321                 }
1322 #endif  /* OPENSSL_NO_KRB5 */
1323         if(context) SSL_set_session_id_context(con, context,
1324                                                strlen((char *)context));
1325
1326         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1327         if (s_nbio_test)
1328                 {
1329                 BIO *test;
1330
1331                 test=BIO_new(BIO_f_nbio_test());
1332                 sbio=BIO_push(test,sbio);
1333                 }
1334         SSL_set_bio(con,sbio,sbio);
1335         SSL_set_accept_state(con);
1336
1337         /* SSL_set_fd(con,s); */
1338         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1339         BIO_push(io,ssl_bio);
1340 #ifdef CHARSET_EBCDIC
1341         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1342 #endif
1343
1344         if (s_debug)
1345                 {
1346                 con->debug=1;
1347                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1348                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1349                 }
1350         if (s_msg)
1351                 {
1352                 SSL_set_msg_callback(con, msg_cb);
1353                 SSL_set_msg_callback_arg(con, bio_s_out);
1354                 }
1355
1356         blank=0;
1357         for (;;)
1358                 {
1359                 if (hack)
1360                         {
1361                         i=SSL_accept(con);
1362
1363                         switch (SSL_get_error(con,i))
1364                                 {
1365                         case SSL_ERROR_NONE:
1366                                 break;
1367                         case SSL_ERROR_WANT_WRITE:
1368                         case SSL_ERROR_WANT_READ:
1369                         case SSL_ERROR_WANT_X509_LOOKUP:
1370                                 continue;
1371                         case SSL_ERROR_SYSCALL:
1372                         case SSL_ERROR_SSL:
1373                         case SSL_ERROR_ZERO_RETURN:
1374                                 ret=1;
1375                                 goto err;
1376                                 /* break; */
1377                                 }
1378
1379                         SSL_renegotiate(con);
1380                         SSL_write(con,NULL,0);
1381                         }
1382
1383                 i=BIO_gets(io,buf,bufsize-1);
1384                 if (i < 0) /* error */
1385                         {
1386                         if (!BIO_should_retry(io))
1387                                 {
1388                                 if (!s_quiet)
1389                                         ERR_print_errors(bio_err);
1390                                 goto err;
1391                                 }
1392                         else
1393                                 {
1394                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1395 #ifndef OPENSSL_SYS_MSDOS
1396                                 sleep(1);
1397 #endif
1398                                 continue;
1399                                 }
1400                         }
1401                 else if (i == 0) /* end of input */
1402                         {
1403                         ret=1;
1404                         goto end;
1405                         }
1406
1407                 /* else we have data */
1408                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1409                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1410                         {
1411                         char *p;
1412                         X509 *peer;
1413                         STACK_OF(SSL_CIPHER) *sk;
1414                         static char *space="                          ";
1415
1416                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1417                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1418                         BIO_puts(io,"<pre>\n");
1419 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1420                         BIO_puts(io,"\n");
1421                         for (i=0; i<local_argc; i++)
1422                                 {
1423                                 BIO_puts(io,local_argv[i]);
1424                                 BIO_write(io," ",1);
1425                                 }
1426                         BIO_puts(io,"\n");
1427
1428                         /* The following is evil and should not really
1429                          * be done */
1430                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1431                         sk=SSL_get_ciphers(con);
1432                         j=sk_SSL_CIPHER_num(sk);
1433                         for (i=0; i<j; i++)
1434                                 {
1435                                 c=sk_SSL_CIPHER_value(sk,i);
1436                                 BIO_printf(io,"%-11s:%-25s",
1437                                         SSL_CIPHER_get_version(c),
1438                                         SSL_CIPHER_get_name(c));
1439                                 if ((((i+1)%2) == 0) && (i+1 != j))
1440                                         BIO_puts(io,"\n");
1441                                 }
1442                         BIO_puts(io,"\n");
1443                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1444                         if (p != NULL)
1445                                 {
1446                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1447                                 j=i=0;
1448                                 while (*p)
1449                                         {
1450                                         if (*p == ':')
1451                                                 {
1452                                                 BIO_write(io,space,26-j);
1453                                                 i++;
1454                                                 j=0;
1455                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1456                                                 }
1457                                         else
1458                                                 {
1459                                                 BIO_write(io,p,1);
1460                                                 j++;
1461                                                 }
1462                                         p++;
1463                                         }
1464                                 BIO_puts(io,"\n");
1465                                 }
1466                         BIO_printf(io,((con->hit)
1467                                 ?"---\nReused, "
1468                                 :"---\nNew, "));
1469                         c=SSL_get_current_cipher(con);
1470                         BIO_printf(io,"%s, Cipher is %s\n",
1471                                 SSL_CIPHER_get_version(c),
1472                                 SSL_CIPHER_get_name(c));
1473                         SSL_SESSION_print(io,SSL_get_session(con));
1474                         BIO_printf(io,"---\n");
1475                         print_stats(io,SSL_get_SSL_CTX(con));
1476                         BIO_printf(io,"---\n");
1477                         peer=SSL_get_peer_certificate(con);
1478                         if (peer != NULL)
1479                                 {
1480                                 BIO_printf(io,"Client certificate\n");
1481                                 X509_print(io,peer);
1482                                 PEM_write_bio_X509(io,peer);
1483                                 }
1484                         else
1485                                 BIO_puts(io,"no client certificate available\n");
1486                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1487                         break;
1488                         }
1489                 else if ((www == 2 || www == 3)
1490                          && (strncmp("GET /",buf,5) == 0))
1491                         {
1492                         BIO *file;
1493                         char *p,*e;
1494                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1495
1496                         /* skip the '/' */
1497                         p= &(buf[5]);
1498
1499                         dot = 1;
1500                         for (e=p; *e != '\0'; e++)
1501                                 {
1502                                 if (e[0] == ' ')
1503                                         break;
1504
1505                                 switch (dot)
1506                                         {
1507                                 case 1:
1508                                         dot = (e[0] == '.') ? 2 : 0;
1509                                         break;
1510                                 case 2:
1511                                         dot = (e[0] == '.') ? 3 : 0;
1512                                         break;
1513                                 case 3:
1514                                         dot = (e[0] == '/') ? -1 : 0;
1515                                         break;
1516                                         }
1517                                 if (dot == 0)
1518                                         dot = (e[0] == '/') ? 1 : 0;
1519                                 }
1520                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
1521
1522                         if (*e == '\0')
1523                                 {
1524                                 BIO_puts(io,text);
1525                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1526                                 break;
1527                                 }
1528                         *e='\0';
1529
1530                         if (dot)
1531                                 {
1532                                 BIO_puts(io,text);
1533                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1534                                 break;
1535                                 }
1536
1537                         if (*p == '/')
1538                                 {
1539                                 BIO_puts(io,text);
1540                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1541                                 break;
1542                                 }
1543
1544 #if 0
1545                         /* append if a directory lookup */
1546                         if (e[-1] == '/')
1547                                 strcat(p,"index.html");
1548 #endif
1549
1550                         /* if a directory, do the index thang */
1551                         if (stat(p,&st_buf) < 0)
1552                                 {
1553                                 BIO_puts(io,text);
1554                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1555                                 ERR_print_errors(io);
1556                                 break;
1557                                 }
1558                         if (S_ISDIR(st_buf.st_mode))
1559                                 {
1560 #if 0 /* must check buffer size */
1561                                 strcat(p,"/index.html");
1562 #else
1563                                 BIO_puts(io,text);
1564                                 BIO_printf(io,"'%s' is a directory\r\n",p);
1565                                 break;
1566 #endif
1567                                 }
1568
1569                         if ((file=BIO_new_file(p,"r")) == NULL)
1570                                 {
1571                                 BIO_puts(io,text);
1572                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1573                                 ERR_print_errors(io);
1574                                 break;
1575                                 }
1576
1577                         if (!s_quiet)
1578                                 BIO_printf(bio_err,"FILE:%s\n",p);
1579
1580                         if (www == 2)
1581                                 {
1582                                 i=strlen(p);
1583                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1584                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1585                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1586                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1587                                 else
1588                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1589                                 }
1590                         /* send the file */
1591                         total_bytes=0;
1592                         for (;;)
1593                                 {
1594                                 i=BIO_read(file,buf,bufsize);
1595                                 if (i <= 0) break;
1596
1597 #ifdef RENEG
1598                                 total_bytes+=i;
1599                                 fprintf(stderr,"%d\n",i);
1600                                 if (total_bytes > 3*1024)
1601                                         {
1602                                         total_bytes=0;
1603                                         fprintf(stderr,"RENEGOTIATE\n");
1604                                         SSL_renegotiate(con);
1605                                         }
1606 #endif
1607
1608                                 for (j=0; j<i; )
1609                                         {
1610 #ifdef RENEG
1611 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1612 #endif
1613                                         k=BIO_write(io,&(buf[j]),i-j);
1614                                         if (k <= 0)
1615                                                 {
1616                                                 if (!BIO_should_retry(io))
1617                                                         goto write_error;
1618                                                 else
1619                                                         {
1620                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1621                                                         }
1622                                                 }
1623                                         else
1624                                                 {
1625                                                 j+=k;
1626                                                 }
1627                                         }
1628                                 }
1629 write_error:
1630                         BIO_free(file);
1631                         break;
1632                         }
1633                 }
1634
1635         for (;;)
1636                 {
1637                 i=(int)BIO_flush(io);
1638                 if (i <= 0)
1639                         {
1640                         if (!BIO_should_retry(io))
1641                                 break;
1642                         }
1643                 else
1644                         break;
1645                 }
1646 end:
1647 #if 1
1648         /* make sure we re-use sessions */
1649         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1650 #else
1651         /* This kills performance */
1652 /*      SSL_shutdown(con); A shutdown gets sent in the
1653  *      BIO_free_all(io) procession */
1654 #endif
1655
1656 err:
1657
1658         if (ret >= 0)
1659                 BIO_printf(bio_s_out,"ACCEPT\n");
1660
1661         if (buf != NULL) OPENSSL_free(buf);
1662         if (io != NULL) BIO_free_all(io);
1663 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1664         return(ret);
1665         }
1666
1667 #ifndef OPENSSL_NO_RSA
1668 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1669         {
1670         static RSA *rsa_tmp=NULL;
1671
1672         if (rsa_tmp == NULL)
1673                 {
1674                 if (!s_quiet)
1675                         {
1676                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1677                         (void)BIO_flush(bio_err);
1678                         }
1679                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1680                 if (!s_quiet)
1681                         {
1682                         BIO_printf(bio_err,"\n");
1683                         (void)BIO_flush(bio_err);
1684                         }
1685                 }
1686         return(rsa_tmp);
1687         }
1688 #endif
1689
1690 #define MAX_SESSION_ID_ATTEMPTS 10
1691 static int generate_session_id(const SSL *ssl, unsigned char *id,
1692                                 unsigned int *id_len)
1693         {
1694         unsigned int count = 0;
1695         do      {
1696                 RAND_pseudo_bytes(id, *id_len);
1697                 /* Prefix the session_id with the required prefix. NB: If our
1698                  * prefix is too long, clip it - but there will be worse effects
1699                  * anyway, eg. the server could only possibly create 1 session
1700                  * ID (ie. the prefix!) so all future session negotiations will
1701                  * fail due to conflicts. */
1702                 memcpy(id, session_id_prefix,
1703                         (strlen(session_id_prefix) < *id_len) ?
1704                         strlen(session_id_prefix) : *id_len);
1705                 }
1706         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
1707                 (++count < MAX_SESSION_ID_ATTEMPTS));
1708         if(count >= MAX_SESSION_ID_ATTEMPTS)
1709                 return 0;
1710         return 1;
1711         }