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 <stdio.h>
  60 #include <stdlib.h>
  61 #include <string.h>
  62 #include <sys/types.h>
  63 #include <sys/stat.h>
  64 #ifdef NO_STDIO
  65 #define APPS_WIN16
  66 #endif
  67 #include <openssl/lhash.h>
  68 #include <openssl/bn.h>
  69 #define USE_SOCKETS
  70 #include "apps.h"
  71 #include <openssl/err.h>
  72 #include <openssl/pem.h>
  73 #include <openssl/x509.h>
  74 #include <openssl/ssl.h>
  75 #include "s_apps.h"
  76
  77 #if defined(NO_RSA) && !defined(NO_SSL2)
  78 #define NO_SSL2
  79 #endif
  80
  81 #ifndef NO_RSA
  82 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export,int keylength);
  83 #endif
  84 static int sv_body(char *hostname, int s, unsigned char *context);
  85 static int www_body(char *hostname, int s, unsigned char *context);
  86 static void close_accept_socket(void );
  87 static void sv_usage(void);
  88 static int init_ssl_connection(SSL *s);
  89 static void print_stats(BIO *bp,SSL_CTX *ctx);
  90 #ifndef NO_DH
  91 static DH *load_dh_param(void );
  92 static DH *get_dh512(void);
  93 #endif
  94 /* static void s_server_init(void);*/
  95
  96 #ifndef S_ISDIR
  97 #define S_ISDIR(a)      (((a) & _S_IFMT) == _S_IFDIR)
  98 #endif
  99
 100 #ifndef NO_DH
 101 static unsigned char dh512_p[]={
 102         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 103         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 104         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 105         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 106         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 107         0x47,0x74,0xE8,0x33,
 108         };
 109 static unsigned char dh512_g[]={
 110         0x02,
 111         };
 112
 113 static DH *get_dh512(void)
 114         {
 115         DH *dh=NULL;
 116
 117         if ((dh=DH_new()) == NULL) return(NULL);
 118         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 119         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 120         if ((dh->p == NULL) || (dh->g == NULL))
 121                 return(NULL);
 122         return(dh);
 123         }
 124 #endif
 125
 126 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 127
 128 #undef BUFSIZZ
 129 #define BUFSIZZ 16*1024
 130 static int bufsize=32;
 131 static int accept_socket= -1;
 132
 133 #define TEST_CERT       "server.pem"
 134 #undef PROG
 135 #define PROG            s_server_main
 136
 137 #define DH_PARAM        "server.pem"
 138
 139 extern int verify_depth;
 140
 141 static char *cipher=NULL;
 142 static int s_server_verify=SSL_VERIFY_NONE;
 143 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 144 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 145 #ifdef FIONBIO
 146 static int s_nbio=0;
 147 #endif
 148 static int s_nbio_test=0;
 149 static SSL_CTX *ctx=NULL;
 150 static int www=0;
 151
 152 static BIO *bio_s_out=NULL;
 153 static int s_debug=0;
 154 static int s_quiet=0;
 155
 156 #if 0
 157 static void s_server_init(void)
 158         {
 159         cipher=NULL;
 160         s_server_verify=SSL_VERIFY_NONE;
 161         s_dcert_file=NULL;
 162         s_dkey_file=NULL;
 163         s_cert_file=TEST_CERT;
 164         s_key_file=NULL;
 165 #ifdef FIONBIO
 166         s_nbio=0;
 167 #endif
 168         s_nbio_test=0;
 169         ctx=NULL;
 170         www=0;
 171
 172         bio_s_out=NULL;
 173         s_debug=0;
 174         s_quiet=0;
 175         }
 176 #endif
 177
 178 static void sv_usage(void)
 179         {
 180         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 181         BIO_printf(bio_err,"\n");
 182         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 183         BIO_printf(bio_err," -context arg  - set session ID context\n");
 184         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 185         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 186         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 187         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 188         BIO_printf(bio_err," -key arg      - RSA file to use, PEM format assumed, in cert file if\n");
 189         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 190         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 191         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 192 #ifdef FIONBIO
 193         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 194 #endif
 195         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 196         BIO_printf(bio_err," -debug        - Print more output\n");
 197         BIO_printf(bio_err," -state        - Print the SSL states\n");
 198         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 199         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 200         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 201         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 202         BIO_printf(bio_err," -quiet        - No server output\n");
 203         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 204         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 205         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 206         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 207         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 208         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 209         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 210         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatability\n");
 211         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 212         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 213         }
 214
 215 static int local_argc=0;
 216 static char **local_argv;
 217 static int hack=0;
 218
 219 int MAIN(int argc, char *argv[])
 220         {
 221         short port=PORT;
 222         char *CApath=NULL,*CAfile=NULL;
 223         char *context = NULL;
 224         int badop=0,bugs=0;
 225         int ret=1;
 226         int off=0;
 227         int no_tmp_rsa=0,nocert=0;
 228         int state=0;
 229         SSL_METHOD *meth=NULL;
 230 #ifndef NO_DH
 231         DH *dh=NULL;
 232 #endif
 233
 234 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 235         meth=SSLv23_server_method();
 236 #elif !defined(NO_SSL3)
 237         meth=SSLv3_server_method();
 238 #elif !defined(NO_SSL2)
 239         meth=SSLv2_server_method();
 240 #endif
 241
 242         local_argc=argc;
 243         local_argv=argv;
 244
 245         apps_startup();
 246         s_quiet=0;
 247         s_debug=0;
 248
 249         if (bio_err == NULL)
 250                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 251
 252         verify_depth=0;
 253 #ifdef FIONBIO
 254         s_nbio=0;
 255 #endif
 256         s_nbio_test=0;
 257
 258         argc--;
 259         argv++;
 260
 261         while (argc >= 1)
 262                 {
 263                 if      ((strcmp(*argv,"-port") == 0) ||
 264                          (strcmp(*argv,"-accept") == 0))
 265                         {
 266                         if (--argc < 1) goto bad;
 267                         if (!extract_port(*(++argv),&port))
 268                                 goto bad;
 269                         }
 270                 else if (strcmp(*argv,"-verify") == 0)
 271                         {
 272                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 273                         if (--argc < 1) goto bad;
 274                         verify_depth=atoi(*(++argv));
 275                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 276                         }
 277                 else if (strcmp(*argv,"-Verify") == 0)
 278                         {
 279                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 280                                 SSL_VERIFY_CLIENT_ONCE;
 281                         if (--argc < 1) goto bad;
 282                         verify_depth=atoi(*(++argv));
 283                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 284                         }
 285                 else if (strcmp(*argv,"-context") == 0)
 286                         {
 287                         if (--argc < 1) goto bad;
 288                         context= *(++argv);
 289                         }
 290                 else if (strcmp(*argv,"-cert") == 0)
 291                         {
 292                         if (--argc < 1) goto bad;
 293                         s_cert_file= *(++argv);
 294                         }
 295                 else if (strcmp(*argv,"-key") == 0)
 296                         {
 297                         if (--argc < 1) goto bad;
 298                         s_key_file= *(++argv);
 299                         }
 300                 else if (strcmp(*argv,"-dcert") == 0)
 301                         {
 302                         if (--argc < 1) goto bad;
 303                         s_dcert_file= *(++argv);
 304                         }
 305                 else if (strcmp(*argv,"-dkey") == 0)
 306                         {
 307                         if (--argc < 1) goto bad;
 308                         s_dkey_file= *(++argv);
 309                         }
 310                 else if (strcmp(*argv,"-nocert") == 0)
 311                         {
 312                         nocert=1;
 313                         }
 314                 else if (strcmp(*argv,"-CApath") == 0)
 315                         {
 316                         if (--argc < 1) goto bad;
 317                         CApath= *(++argv);
 318                         }
 319                 else if (strcmp(*argv,"-cipher") == 0)
 320                         {
 321                         if (--argc < 1) goto bad;
 322                         cipher= *(++argv);
 323                         }
 324                 else if (strcmp(*argv,"-CAfile") == 0)
 325                         {
 326                         if (--argc < 1) goto bad;
 327                         CAfile= *(++argv);
 328                         }
 329 #ifdef FIONBIO
 330                 else if (strcmp(*argv,"-nbio") == 0)
 331                         { s_nbio=1; }
 332 #endif
 333                 else if (strcmp(*argv,"-nbio_test") == 0)
 334                         {
 335 #ifdef FIONBIO
 336                         s_nbio=1;
 337 #endif
 338                         s_nbio_test=1;
 339                         }
 340                 else if (strcmp(*argv,"-debug") == 0)
 341                         { s_debug=1; }
 342                 else if (strcmp(*argv,"-hack") == 0)
 343                         { hack=1; }
 344                 else if (strcmp(*argv,"-state") == 0)
 345                         { state=1; }
 346                 else if (strcmp(*argv,"-quiet") == 0)
 347                         { s_quiet=1; }
 348                 else if (strcmp(*argv,"-bugs") == 0)
 349                         { bugs=1; }
 350                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 351                         { no_tmp_rsa=1; }
 352                 else if (strcmp(*argv,"-www") == 0)
 353                         { www=1; }
 354                 else if (strcmp(*argv,"-WWW") == 0)
 355                         { www=2; }
 356                 else if (strcmp(*argv,"-no_ssl2") == 0)
 357                         { off|=SSL_OP_NO_SSLv2; }
 358                 else if (strcmp(*argv,"-no_ssl3") == 0)
 359                         { off|=SSL_OP_NO_SSLv3; }
 360                 else if (strcmp(*argv,"-no_tls1") == 0)
 361                         { off|=SSL_OP_NO_TLSv1; }
 362 #ifndef NO_SSL2
 363                 else if (strcmp(*argv,"-ssl2") == 0)
 364                         { meth=SSLv2_server_method(); }
 365 #endif
 366 #ifndef NO_SSL3
 367                 else if (strcmp(*argv,"-ssl3") == 0)
 368                         { meth=SSLv3_server_method(); }
 369 #endif
 370 #ifndef NO_TLS1
 371                 else if (strcmp(*argv,"-tls1") == 0)
 372                         { meth=TLSv1_server_method(); }
 373 #endif
 374                 else
 375                         {
 376                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 377                         badop=1;
 378                         break;
 379                         }
 380                 argc--;
 381                 argv++;
 382                 }
 383         if (badop)
 384                 {
 385 bad:
 386                 sv_usage();
 387                 goto end;
 388                 }
 389
 390         if (bio_s_out == NULL)
 391                 {
 392                 if (s_quiet && !s_debug)
 393                         {
 394                         bio_s_out=BIO_new(BIO_s_null());
 395                         }
 396                 else
 397                         {
 398                         if (bio_s_out == NULL)
 399                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 400                         }
 401                 }
 402
 403 #if !defined(NO_RSA) || !defined(NO_DSA)
 404         if (nocert)
 405 #endif
 406                 {
 407                 s_cert_file=NULL;
 408                 s_key_file=NULL;
 409                 s_dcert_file=NULL;
 410                 s_dkey_file=NULL;
 411                 }
 412
 413         SSL_load_error_strings();
 414         SSLeay_add_ssl_algorithms();
 415
 416         ctx=SSL_CTX_new(meth);
 417         if (ctx == NULL)
 418                 {
 419                 ERR_print_errors(bio_err);
 420                 goto end;
 421                 }
 422
 423         SSL_CTX_set_quiet_shutdown(ctx,1);
 424         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 425         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 426         SSL_CTX_set_options(ctx,off);
 427         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 428
 429         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 430
 431         SSL_CTX_sess_set_cache_size(ctx,128);
 432
 433 #if 0
 434         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 435 #endif
 436
 437 #if 0
 438         if (s_cert_file == NULL)
 439                 {
 440                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 441                 goto end;
 442                 }
 443 #endif
 444
 445         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 446                 (!SSL_CTX_set_default_verify_paths(ctx)))
 447                 {
 448                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 449                 ERR_print_errors(bio_err);
 450                 /* goto end; */
 451                 }
 452
 453 #ifndef NO_DH
 454         /* EAY EAY EAY evil hack */
 455         dh=load_dh_param();
 456         if (dh != NULL)
 457                 {
 458                 BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 459                 }
 460         else
 461                 {
 462                 BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 463                 dh=get_dh512();
 464                 }
 465         BIO_flush(bio_s_out);
 466
 467         SSL_CTX_set_tmp_dh(ctx,dh);
 468         DH_free(dh);
 469 #endif
 470
 471         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 472                 goto end;
 473         if (s_dcert_file != NULL)
 474                 {
 475                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 476                         goto end;
 477                 }
 478
 479 #ifndef NO_RSA
 480 #if 1
 481         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 482 #else
 483         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 484                 {
 485                 RSA *rsa;
 486
 487                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 488                 BIO_flush(bio_s_out);
 489
 490                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 491
 492                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 493                         {
 494                         ERR_print_errors(bio_err);
 495                         goto end;
 496                         }
 497                 RSA_free(rsa);
 498                 BIO_printf(bio_s_out,"\n");
 499                 }
 500 #endif
 501 #endif
 502
 503         if (cipher != NULL)
 504                 SSL_CTX_set_cipher_list(ctx,cipher);
 505         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 506
 507         SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 508
 509         BIO_printf(bio_s_out,"ACCEPT\n");
 510         if (www)
 511                 do_server(port,&accept_socket,www_body, context);
 512         else
 513                 do_server(port,&accept_socket,sv_body, context);
 514         print_stats(bio_s_out,ctx);
 515         ret=0;
 516 end:
 517         if (ctx != NULL) SSL_CTX_free(ctx);
 518         if (bio_s_out != NULL)
 519                 {
 520                 BIO_free(bio_s_out);
 521                 bio_s_out=NULL;
 522                 }
 523         EXIT(ret);
 524         }
 525
 526 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 527         {
 528         BIO_printf(bio,"%4ld items in the session cache\n",
 529                 SSL_CTX_sess_number(ssl_ctx));
 530         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 531                 SSL_CTX_sess_connect(ssl_ctx));
 532         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 533                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 534         BIO_printf(bio,"%4d client connects that finished\n",
 535                 SSL_CTX_sess_connect_good(ssl_ctx));
 536         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 537                 SSL_CTX_sess_accept(ssl_ctx));
 538         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 539                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 540         BIO_printf(bio,"%4d server accepts that finished\n",
 541                 SSL_CTX_sess_accept_good(ssl_ctx));
 542         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 543         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 544         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 545         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 546         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 547                 SSL_CTX_sess_cache_full(ssl_ctx),
 548                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 549         }
 550
 551 static int sv_body(char *hostname, int s, unsigned char *context)
 552         {
 553         char *buf=NULL;
 554         fd_set readfds;
 555         int ret=1,width;
 556         int k,i;
 557         unsigned long l;
 558         SSL *con=NULL;
 559         BIO *sbio;
 560
 561         if ((buf=Malloc(bufsize)) == NULL)
 562                 {
 563                 BIO_printf(bio_err,"out of memory\n");
 564                 goto err;
 565                 }
 566 #ifdef FIONBIO
 567         if (s_nbio)
 568                 {
 569                 unsigned long sl=1;
 570
 571                 if (!s_quiet)
 572                         BIO_printf(bio_err,"turning on non blocking io\n");
 573                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 574                         ERR_print_errors(bio_err);
 575                 }
 576 #endif
 577
 578         if (con == NULL) {
 579                 con=(SSL *)SSL_new(ctx);
 580                 if(context)
 581                       SSL_set_session_id_context(con, context,
 582                                                  strlen((char *)context));
 583         }
 584         SSL_clear(con);
 585
 586         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 587         if (s_nbio_test)
 588                 {
 589                 BIO *test;
 590
 591                 test=BIO_new(BIO_f_nbio_test());
 592                 sbio=BIO_push(test,sbio);
 593                 }
 594         SSL_set_bio(con,sbio,sbio);
 595         SSL_set_accept_state(con);
 596         /* SSL_set_fd(con,s); */
 597
 598         if (s_debug)
 599                 {
 600                 con->debug=1;
 601                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 602                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 603                 }
 604
 605         width=s+1;
 606         for (;;)
 607                 {
 608                 FD_ZERO(&readfds);
 609 #ifndef WINDOWS
 610                 FD_SET(fileno(stdin),&readfds);
 611 #endif
 612                 FD_SET(s,&readfds);
 613                 i=select(width,&readfds,NULL,NULL,NULL);
 614                 if (i <= 0) continue;
 615                 if (FD_ISSET(fileno(stdin),&readfds))
 616                         {
 617                         i=read(fileno(stdin),buf,bufsize);
 618                         if (!s_quiet)
 619                                 {
 620                                 if ((i <= 0) || (buf[0] == 'Q'))
 621                                         {
 622                                         BIO_printf(bio_s_out,"DONE\n");
 623                                         SHUTDOWN(s);
 624                                         close_accept_socket();
 625                                         ret= -11;
 626                                         goto err;
 627                                         }
 628                                 if ((i <= 0) || (buf[0] == 'q'))
 629                                         {
 630                                         BIO_printf(bio_s_out,"DONE\n");
 631                                         SHUTDOWN(s);
 632         /*                              close_accept_socket();
 633                                         ret= -11;*/
 634                                         goto err;
 635                                         }
 636                                 if ((buf[0] == 'r') &&
 637                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 638                                         {
 639                                         SSL_renegotiate(con);
 640                                         i=SSL_do_handshake(con);
 641                                         printf("SSL_do_handshake -> %d\n",i);
 642                                         i=0; /*13; */
 643                                         continue;
 644                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 645                                         }
 646                                 if ((buf[0] == 'R') &&
 647                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 648                                         {
 649                                         SSL_set_verify(con,
 650                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
 651                                         SSL_renegotiate(con);
 652                                         i=SSL_do_handshake(con);
 653                                         printf("SSL_do_handshake -> %d\n",i);
 654                                         i=0; /* 13; */
 655                                         continue;
 656                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
 657                                         }
 658                                 if (buf[0] == 'P')
 659                                         {
 660                                         static char *str="Lets print some clear text\n";
 661                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
 662                                         }
 663                                 if (buf[0] == 'S')
 664                                         {
 665                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
 666                                         }
 667                                 }
 668                         l=k=0;
 669                         for (;;)
 670                                 {
 671                                 /* should do a select for the write */
 672 #ifdef RENEG
 673 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
 674 #endif
 675                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
 676                                 switch (SSL_get_error(con,k))
 677                                         {
 678                                 case SSL_ERROR_NONE:
 679                                         break;
 680                                 case SSL_ERROR_WANT_WRITE:
 681                                 case SSL_ERROR_WANT_READ:
 682                                 case SSL_ERROR_WANT_X509_LOOKUP:
 683                                         BIO_printf(bio_s_out,"Write BLOCK\n");
 684                                         break;
 685                                 case SSL_ERROR_SYSCALL:
 686                                 case SSL_ERROR_SSL:
 687                                         BIO_printf(bio_s_out,"ERROR\n");
 688                                         ERR_print_errors(bio_err);
 689                                         ret=1;
 690                                         goto err;
 691                                         /* break; */
 692                                 case SSL_ERROR_ZERO_RETURN:
 693                                         BIO_printf(bio_s_out,"DONE\n");
 694                                         ret=1;
 695                                         goto err;
 696                                         }
 697                                 l+=k;
 698                                 i-=k;
 699                                 if (i <= 0) break;
 700                                 }
 701                         }
 702                 if (FD_ISSET(s,&readfds))
 703                         {
 704                         if (!SSL_is_init_finished(con))
 705                                 {
 706                                 i=init_ssl_connection(con);
 707
 708                                 if (i < 0)
 709                                         {
 710                                         ret=0;
 711                                         goto err;
 712                                         }
 713                                 else if (i == 0)
 714                                         {
 715                                         ret=1;
 716                                         goto err;
 717                                         }
 718                                 }
 719                         else
 720                                 {
 721 again:
 722                                 i=SSL_read(con,(char *)buf,bufsize);
 723                                 switch (SSL_get_error(con,i))
 724                                         {
 725                                 case SSL_ERROR_NONE:
 726                                         write(fileno(stdout),buf,
 727                                                 (unsigned int)i);
 728                                         if (SSL_pending(con)) goto again;
 729                                         break;
 730                                 case SSL_ERROR_WANT_WRITE:
 731                                 case SSL_ERROR_WANT_READ:
 732                                 case SSL_ERROR_WANT_X509_LOOKUP:
 733                                         BIO_printf(bio_s_out,"Read BLOCK\n");
 734                                         break;
 735                                 case SSL_ERROR_SYSCALL:
 736                                 case SSL_ERROR_SSL:
 737                                         BIO_printf(bio_s_out,"ERROR\n");
 738                                         ERR_print_errors(bio_err);
 739                                         ret=1;
 740                                         goto err;
 741                                 case SSL_ERROR_ZERO_RETURN:
 742                                         BIO_printf(bio_s_out,"DONE\n");
 743                                         ret=1;
 744                                         goto err;
 745                                         }
 746                                 }
 747                         }
 748                 }
 749 err:
 750         BIO_printf(bio_s_out,"shutting down SSL\n");
 751 #if 1
 752         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
 753 #else
 754         SSL_shutdown(con);
 755 #endif
 756         if (con != NULL) SSL_free(con);
 757         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
 758         if (buf != NULL)
 759                 {
 760                 memset(buf,0,bufsize);
 761                 Free(buf);
 762                 }
 763         if (ret >= 0)
 764                 BIO_printf(bio_s_out,"ACCEPT\n");
 765         return(ret);
 766         }
 767
 768 static void close_accept_socket(void)
 769         {
 770         BIO_printf(bio_err,"shutdown accept socket\n");
 771         if (accept_socket >= 0)
 772                 {
 773                 SHUTDOWN2(accept_socket);
 774                 }
 775         }
 776
 777 static int init_ssl_connection(SSL *con)
 778         {
 779         int i;
 780         const char *str;
 781         X509 *peer;
 782         long verify_error;
 783         MS_STATIC char buf[BUFSIZ];
 784
 785         if ((i=SSL_accept(con)) <= 0)
 786                 {
 787                 if (BIO_sock_should_retry(i))
 788                         {
 789                         BIO_printf(bio_s_out,"DELAY\n");
 790                         return(1);
 791                         }
 792
 793                 BIO_printf(bio_err,"ERROR\n");
 794                 verify_error=SSL_get_verify_result(con);
 795                 if (verify_error != X509_V_OK)
 796                         {
 797                         BIO_printf(bio_err,"verify error:%s\n",
 798                                 X509_verify_cert_error_string(verify_error));
 799                         }
 800                 else
 801                         ERR_print_errors(bio_err);
 802                 return(0);
 803                 }
 804
 805         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
 806
 807         peer=SSL_get_peer_certificate(con);
 808         if (peer != NULL)
 809                 {
 810                 BIO_printf(bio_s_out,"Client certificate\n");
 811                 PEM_write_bio_X509(bio_s_out,peer);
 812                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
 813                 BIO_printf(bio_s_out,"subject=%s\n",buf);
 814                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
 815                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
 816                 X509_free(peer);
 817                 }
 818
 819         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
 820                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
 821         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
 822         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
 823         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
 824         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
 825                 TLS1_FLAGS_TLS_PADDING_BUG)
 826                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
 827
 828         return(1);
 829         }
 830
 831 #ifndef NO_DH
 832 static DH *load_dh_param(void)
 833         {
 834         DH *ret=NULL;
 835         BIO *bio;
 836
 837         if ((bio=BIO_new_file(DH_PARAM,"r")) == NULL)
 838                 goto err;
 839         ret=PEM_read_bio_DHparams(bio,NULL,NULL);
 840 err:
 841         if (bio != NULL) BIO_free(bio);
 842         return(ret);
 843         }
 844 #endif
 845
 846 #if 0
 847 static int load_CA(SSL_CTX *ctx, char *file)
 848         {
 849         FILE *in;
 850         X509 *x=NULL;
 851
 852         if ((in=fopen(file,"r")) == NULL)
 853                 return(0);
 854
 855         for (;;)
 856                 {
 857                 if (PEM_read_X509(in,&x,NULL) == NULL)
 858                         break;
 859                 SSL_CTX_add_client_CA(ctx,x);
 860                 }
 861         if (x != NULL) X509_free(x);
 862         fclose(in);
 863         return(1);
 864         }
 865 #endif
 866
 867 static int www_body(char *hostname, int s, unsigned char *context)
 868         {
 869         char *buf=NULL;
 870         int ret=1;
 871         int i,j,k,blank,dot;
 872         struct stat st_buf;
 873         SSL *con;
 874         SSL_CIPHER *c;
 875         BIO *io,*ssl_bio,*sbio;
 876         long total_bytes;
 877
 878         buf=Malloc(bufsize);
 879         if (buf == NULL) return(0);
 880         io=BIO_new(BIO_f_buffer());
 881         ssl_bio=BIO_new(BIO_f_ssl());
 882         if ((io == NULL) || (ssl_bio == NULL)) goto err;
 883
 884 #ifdef FIONBIO
 885         if (s_nbio)
 886                 {
 887                 unsigned long sl=1;
 888
 889                 if (!s_quiet)
 890                         BIO_printf(bio_err,"turning on non blocking io\n");
 891                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 892                         ERR_print_errors(bio_err);
 893                 }
 894 #endif
 895
 896         /* lets make the output buffer a reasonable size */
 897         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
 898
 899         if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
 900         if(context) SSL_set_session_id_context(con, context,
 901                                                strlen((char *)context));
 902
 903         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 904         if (s_nbio_test)
 905                 {
 906                 BIO *test;
 907
 908                 test=BIO_new(BIO_f_nbio_test());
 909                 sbio=BIO_push(test,sbio);
 910                 }
 911         SSL_set_bio(con,sbio,sbio);
 912         SSL_set_accept_state(con);
 913
 914         /* SSL_set_fd(con,s); */
 915         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
 916         BIO_push(io,ssl_bio);
 917
 918         if (s_debug)
 919                 {
 920                 con->debug=1;
 921                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 922                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 923                 }
 924
 925         blank=0;
 926         for (;;)
 927                 {
 928                 if (hack)
 929                         {
 930                         i=SSL_accept(con);
 931
 932                         switch (SSL_get_error(con,i))
 933                                 {
 934                         case SSL_ERROR_NONE:
 935                                 break;
 936                         case SSL_ERROR_WANT_WRITE:
 937                         case SSL_ERROR_WANT_READ:
 938                         case SSL_ERROR_WANT_X509_LOOKUP:
 939                                 continue;
 940                         case SSL_ERROR_SYSCALL:
 941                         case SSL_ERROR_SSL:
 942                         case SSL_ERROR_ZERO_RETURN:
 943                                 ret=1;
 944                                 goto err;
 945                                 /* break; */
 946                                 }
 947
 948                         SSL_renegotiate(con);
 949                         SSL_write(con,NULL,0);
 950                         }
 951
 952                 i=BIO_gets(io,buf,bufsize-1);
 953                 if (i < 0) /* error */
 954                         {
 955                         if (!BIO_should_retry(io))
 956                                 {
 957                                 if (!s_quiet)
 958                                         ERR_print_errors(bio_err);
 959                                 goto err;
 960                                 }
 961                         else
 962                                 {
 963                                 BIO_printf(bio_s_out,"read R BLOCK\n");
 964 #ifndef MSDOS
 965                                 sleep(1);
 966 #endif
 967                                 continue;
 968                                 }
 969                         }
 970                 else if (i == 0) /* end of input */
 971                         {
 972                         ret=1;
 973                         goto end;
 974                         }
 975
 976                 /* else we have data */
 977                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
 978                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
 979                         {
 980                         char *p;
 981                         X509 *peer;
 982                         STACK_OF(SSL_CIPHER) *sk;
 983                         static char *space="                          ";
 984
 985                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
 986                         BIO_puts(io,"<HTML><BODY BGCOLOR=ffffff>\n");
 987                         BIO_puts(io,"<pre>\n");
 988 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
 989                         BIO_puts(io,"\n");
 990                         for (i=0; i<local_argc; i++)
 991                                 {
 992                                 BIO_puts(io,local_argv[i]);
 993                                 BIO_write(io," ",1);
 994                                 }
 995                         BIO_puts(io,"\n");
 996
 997                         /* The following is evil and should not really
 998                          * be done */
 999                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1000                         sk=SSL_get_ciphers(con);
1001                         j=sk_SSL_CIPHER_num(sk);
1002                         for (i=0; i<j; i++)
1003                                 {
1004                                 c=sk_SSL_CIPHER_value(sk,i);
1005                                 BIO_printf(io,"%-11s:%-25s",
1006                                         SSL_CIPHER_get_version(c),
1007                                         SSL_CIPHER_get_name(c));
1008                                 if ((((i+1)%2) == 0) && (i+1 != j))
1009                                         BIO_puts(io,"\n");
1010                                 }
1011                         BIO_puts(io,"\n");
1012                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1013                         if (p != NULL)
1014                                 {
1015                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1016                                 j=i=0;
1017                                 while (*p)
1018                                         {
1019                                         if (*p == ':')
1020                                                 {
1021                                                 BIO_write(io,space,26-j);
1022                                                 i++;
1023                                                 j=0;
1024                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1025                                                 }
1026                                         else
1027                                                 {
1028                                                 BIO_write(io,p,1);
1029                                                 j++;
1030                                                 }
1031                                         p++;
1032                                         }
1033                                 BIO_puts(io,"\n");
1034                                 }
1035                         BIO_printf(io,((con->hit)
1036                                 ?"---\nReused, "
1037                                 :"---\nNew, "));
1038                         c=SSL_get_current_cipher(con);
1039                         BIO_printf(io,"%s, Cipher is %s\n",
1040                                 SSL_CIPHER_get_version(c),
1041                                 SSL_CIPHER_get_name(c));
1042                         SSL_SESSION_print(io,SSL_get_session(con));
1043                         BIO_printf(io,"---\n");
1044                         print_stats(io,SSL_get_SSL_CTX(con));
1045                         BIO_printf(io,"---\n");
1046                         peer=SSL_get_peer_certificate(con);
1047                         if (peer != NULL)
1048                                 {
1049                                 BIO_printf(io,"Client certificate\n");
1050                                 X509_print(io,peer);
1051                                 PEM_write_bio_X509(io,peer);
1052                                 }
1053                         else
1054                                 BIO_puts(io,"no client certificate available\n");
1055                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1056                         break;
1057                         }
1058                 else if ((www == 2) && (strncmp("GET ",buf,4) == 0))
1059                         {
1060                         BIO *file;
1061                         char *p,*e;
1062                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1063
1064                         /* skip the '/' */
1065                         p= &(buf[5]);
1066                         dot=0;
1067                         for (e=p; *e != '\0'; e++)
1068                                 {
1069                                 if (e[0] == ' ') break;
1070                                 if (    (e[0] == '.') &&
1071                                         (strncmp(&(e[-1]),"/../",4) == 0))
1072                                         dot=1;
1073                                 }
1074
1075
1076                         if (*e == '\0')
1077                                 {
1078                                 BIO_puts(io,text);
1079                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1080                                 break;
1081                                 }
1082                         *e='\0';
1083
1084                         if (dot)
1085                                 {
1086                                 BIO_puts(io,text);
1087                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1088                                 break;
1089                                 }
1090
1091                         if (*p == '/')
1092                                 {
1093                                 BIO_puts(io,text);
1094                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1095                                 break;
1096                                 }
1097
1098                         /* append if a directory lookup */
1099                         if (e[-1] == '/')
1100                                 strcat(p,"index.html");
1101
1102                         /* if a directory, do the index thang */
1103                         if (stat(p,&st_buf) < 0)
1104                                 {
1105                                 BIO_puts(io,text);
1106                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1107                                 ERR_print_errors(io);
1108                                 break;
1109                                 }
1110                         if (S_ISDIR(st_buf.st_mode))
1111                                 {
1112                                 strcat(p,"/index.html");
1113                                 }
1114
1115                         if ((file=BIO_new_file(p,"r")) == NULL)
1116                                 {
1117                                 BIO_puts(io,text);
1118                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1119                                 ERR_print_errors(io);
1120                                 break;
1121                                 }
1122
1123                         if (!s_quiet)
1124                                 BIO_printf(bio_err,"FILE:%s\n",p);
1125
1126                         i=strlen(p);
1127                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1128                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1129                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1130                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1131                         else
1132                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1133                         /* send the file */
1134                         total_bytes=0;
1135                         for (;;)
1136                                 {
1137                                 i=BIO_read(file,buf,bufsize);
1138                                 if (i <= 0) break;
1139
1140 #ifdef RENEG
1141                                 total_bytes+=i;
1142                                 fprintf(stderr,"%d\n",i);
1143                                 if (total_bytes > 3*1024)
1144                                         {
1145                                         total_bytes=0;
1146                                         fprintf(stderr,"RENEGOTIATE\n");
1147                                         SSL_renegotiate(con);
1148                                         }
1149 #endif
1150
1151                                 for (j=0; j<i; )
1152                                         {
1153 #ifdef RENEG
1154 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1155 #endif
1156                                         k=BIO_write(io,&(buf[j]),i-j);
1157                                         if (k <= 0)
1158                                                 {
1159                                                 if (!BIO_should_retry(io))
1160                                                         goto write_error;
1161                                                 else
1162                                                         {
1163                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1164                                                         }
1165                                                 }
1166                                         else
1167                                                 {
1168                                                 j+=k;
1169                                                 }
1170                                         }
1171                                 }
1172 write_error:
1173                         BIO_free(file);
1174                         break;
1175                         }
1176                 }
1177
1178         for (;;)
1179                 {
1180                 i=(int)BIO_flush(io);
1181                 if (i <= 0)
1182                         {
1183                         if (!BIO_should_retry(io))
1184                                 break;
1185                         }
1186                 else
1187                         break;
1188                 }
1189 end:
1190 #if 1
1191         /* make sure we re-use sessions */
1192         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1193 #else
1194         /* This kills performace */
1195 /*      SSL_shutdown(con); A shutdown gets sent in the
1196  *      BIO_free_all(io) procession */
1197 #endif
1198
1199 err:
1200
1201         if (ret >= 0)
1202                 BIO_printf(bio_s_out,"ACCEPT\n");
1203
1204         if (buf != NULL) Free(buf);
1205         if (io != NULL) BIO_free_all(io);
1206 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1207         return(ret);
1208         }
1209
1210 #ifndef NO_RSA
1211 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int export, int keylength)
1212         {
1213         static RSA *rsa_tmp=NULL;
1214
1215         if (rsa_tmp == NULL)
1216                 {
1217                 if (!s_quiet)
1218                         {
1219                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1220                         BIO_flush(bio_err);
1221                         }
1222                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1223                 if (!s_quiet)
1224                         {
1225                         BIO_printf(bio_err,"\n");
1226                         BIO_flush(bio_err);
1227                         }
1228                 }
1229         return(rsa_tmp);
1230         }
1231 #endif