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