apps/s_server.c

   1 /* apps/s_server.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 113  * ECC cipher suite support in OpenSSL originally developed by
 114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 115  */
 116 /* ====================================================================
 117  * Copyright 2005 Nokia. All rights reserved.
 118  *
 119  * The portions of the attached software ("Contribution") is developed by
 120  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 121  * license.
 122  *
 123  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 124  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 125  * support (see RFC 4279) to OpenSSL.
 126  *
 127  * No patent licenses or other rights except those expressly stated in
 128  * the OpenSSL open source license shall be deemed granted or received
 129  * expressly, by implication, estoppel, or otherwise.
 130  *
 131  * No assurances are provided by Nokia that the Contribution does not
 132  * infringe the patent or other intellectual property rights of any third
 133  * party or that the license provides you with all the necessary rights
 134  * to make use of the Contribution.
 135  *
 136  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 137  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 138  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 139  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 140  * OTHERWISE.
 141  */
 142
 143 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
 144  * deprecated functions for openssl-internal code */
 145 #ifdef OPENSSL_NO_DEPRECATED
 146 #undef OPENSSL_NO_DEPRECATED
 147 #endif
 148
 149 #include <assert.h>
 150 #include <ctype.h>
 151 #include <stdio.h>
 152 #include <stdlib.h>
 153 #include <string.h>
 154
 155 #include <openssl/e_os2.h>
 156 #ifdef OPENSSL_NO_STDIO
 157 #define APPS_WIN16
 158 #endif
 159
 160 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
 161 #include <sys/types.h>
 162 #endif
 163
 164 /* With IPv6, it looks like Digital has mixed up the proper order of
 165    recursive header file inclusion, resulting in the compiler complaining
 166    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 167    is needed to have fileno() declared correctly...  So let's define u_int */
 168 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 169 #define __U_INT
 170 typedef unsigned int u_int;
 171 #endif
 172
 173 #include <openssl/lhash.h>
 174 #include <openssl/bn.h>
 175 #define USE_SOCKETS
 176 #include "apps.h"
 177 #include <openssl/err.h>
 178 #include <openssl/pem.h>
 179 #include <openssl/x509.h>
 180 #include <openssl/ssl.h>
 181 #include <openssl/rand.h>
 182 #include <openssl/ocsp.h>
 183 #ifndef OPENSSL_NO_DH
 184 #include <openssl/dh.h>
 185 #endif
 186 #ifndef OPENSSL_NO_RSA
 187 #include <openssl/rsa.h>
 188 #endif
 189 #ifndef OPENSSL_NO_SRP
 190 #include <openssl/srp.h>
 191 #endif
 192 #include "s_apps.h"
 193 #include "timeouts.h"
 194
 195 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 196 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 197 #undef FIONBIO
 198 #endif
 199
 200 #if defined(OPENSSL_SYS_BEOS_R5)
 201 #include <fcntl.h>
 202 #endif
 203
 204 #ifndef OPENSSL_NO_RSA
 205 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 206 #endif
 207 static int sv_body(char *hostname, int s, unsigned char *context);
 208 static int www_body(char *hostname, int s, unsigned char *context);
 209 static int rev_body(char *hostname, int s, unsigned char *context);
 210 static void close_accept_socket(void );
 211 static void sv_usage(void);
 212 static int init_ssl_connection(SSL *s);
 213 static void print_stats(BIO *bp,SSL_CTX *ctx);
 214 static int generate_session_id(const SSL *ssl, unsigned char *id,
 215                                 unsigned int *id_len);
 216 static void init_session_cache_ctx(SSL_CTX *sctx);
 217 static void free_sessions(void);
 218 #ifndef OPENSSL_NO_DH
 219 static DH *load_dh_param(const char *dhfile);
 220 static DH *get_dh512(void);
 221 #endif
 222
 223 #ifdef MONOLITH
 224 static void s_server_init(void);
 225 #endif
 226
 227 #ifndef OPENSSL_NO_DH
 228 static unsigned char dh512_p[]={
 229         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 230         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 231         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 232         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 233         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 234         0x47,0x74,0xE8,0x33,
 235         };
 236 static unsigned char dh512_g[]={
 237         0x02,
 238         };
 239
 240 static DH *get_dh512(void)
 241         {
 242         DH *dh=NULL;
 243
 244         if ((dh=DH_new()) == NULL) return(NULL);
 245         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 246         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 247         if ((dh->p == NULL) || (dh->g == NULL))
 248                 return(NULL);
 249         return(dh);
 250         }
 251 #endif
 252
 253
 254 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 255
 256 #undef BUFSIZZ
 257 #define BUFSIZZ 16*1024
 258 static int bufsize=BUFSIZZ;
 259 static int accept_socket= -1;
 260
 261 #define TEST_CERT       "server.pem"
 262 #ifndef OPENSSL_NO_TLSEXT
 263 #define TEST_CERT2      "server2.pem"
 264 #endif
 265 #undef PROG
 266 #define PROG            s_server_main
 267
 268 extern int verify_depth, verify_return_error, verify_quiet;
 269
 270 static int s_server_verify=SSL_VERIFY_NONE;
 271 static int s_server_session_id_context = 1; /* anything will do */
 272 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL, *s_chain_file=NULL;
 273 #ifndef OPENSSL_NO_TLSEXT
 274 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
 275 #endif
 276 static char *s_dcert_file=NULL,*s_dkey_file=NULL, *s_dchain_file=NULL;
 277 #ifdef FIONBIO
 278 static int s_nbio=0;
 279 #endif
 280 static int s_nbio_test=0;
 281 int s_crlf=0;
 282 static SSL_CTX *ctx=NULL;
 283 #ifndef OPENSSL_NO_TLSEXT
 284 static SSL_CTX *ctx2=NULL;
 285 #endif
 286 static int www=0;
 287
 288 static BIO *bio_s_out=NULL;
 289 static BIO *bio_s_msg = NULL;
 290 static int s_debug=0;
 291 #ifndef OPENSSL_NO_TLSEXT
 292 static int s_tlsextdebug=0;
 293 static int s_tlsextstatus=0;
 294 static int cert_status_cb(SSL *s, void *arg);
 295 #endif
 296 static int no_resume_ephemeral = 0;
 297 static int s_msg=0;
 298 static int s_quiet=0;
 299 static int s_ign_eof=0;
 300 static int s_brief=0;
 301
 302 static char *keymatexportlabel=NULL;
 303 static int keymatexportlen=20;
 304
 305 static int hack=0;
 306 #ifndef OPENSSL_NO_ENGINE
 307 static char *engine_id=NULL;
 308 #endif
 309 static const char *session_id_prefix=NULL;
 310
 311 static int enable_timeouts = 0;
 312 static long socket_mtu;
 313 #ifndef OPENSSL_NO_DTLS1
 314 static int cert_chain = 0;
 315 #endif
 316
 317 #ifndef OPENSSL_NO_TLSEXT
 318 static BIO *authz_in = NULL;
 319 static const char *s_authz_file = NULL;
 320 static BIO *serverinfo_in = NULL;
 321 static const char *s_serverinfo_file = NULL;
 322 #endif
 323
 324 #ifndef OPENSSL_NO_PSK
 325 static char *psk_identity="Client_identity";
 326 char *psk_key=NULL; /* by default PSK is not used */
 327
 328 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
 329         unsigned char *psk, unsigned int max_psk_len)
 330         {
 331         unsigned int psk_len = 0;
 332         int ret;
 333         BIGNUM *bn = NULL;
 334
 335         if (s_debug)
 336                 BIO_printf(bio_s_out,"psk_server_cb\n");
 337         if (!identity)
 338                 {
 339                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
 340                 goto out_err;
 341                 }
 342         if (s_debug)
 343                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
 344                         identity ? (int)strlen(identity) : 0, identity);
 345
 346         /* here we could lookup the given identity e.g. from a database */
 347         if (strcmp(identity, psk_identity) != 0)
 348                 {
 349                 BIO_printf(bio_s_out, "PSK error: client identity not found"
 350                            " (got '%s' expected '%s')\n", identity,
 351                            psk_identity);
 352                 goto out_err;
 353                 }
 354         if (s_debug)
 355                 BIO_printf(bio_s_out, "PSK client identity found\n");
 356
 357         /* convert the PSK key to binary */
 358         ret = BN_hex2bn(&bn, psk_key);
 359         if (!ret)
 360                 {
 361                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 362                 if (bn)
 363                         BN_free(bn);
 364                 return 0;
 365                 }
 366         if (BN_num_bytes(bn) > (int)max_psk_len)
 367                 {
 368                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 369                         max_psk_len, BN_num_bytes(bn));
 370                 BN_free(bn);
 371                 return 0;
 372                 }
 373
 374         ret = BN_bn2bin(bn, psk);
 375         BN_free(bn);
 376
 377         if (ret < 0)
 378                 goto out_err;
 379         psk_len = (unsigned int)ret;
 380
 381         if (s_debug)
 382                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
 383         return psk_len;
 384  out_err:
 385         if (s_debug)
 386                 BIO_printf(bio_err, "Error in PSK server callback\n");
 387         return 0;
 388         }
 389 #endif
 390
 391 #ifndef OPENSSL_NO_SRP
 392 /* This is a context that we pass to callbacks */
 393 typedef struct srpsrvparm_st
 394         {
 395         char *login;
 396         SRP_VBASE *vb;
 397         SRP_user_pwd *user;
 398         } srpsrvparm;
 399
 400 /* This callback pretends to require some asynchronous logic in order to obtain
 401    a verifier. When the callback is called for a new connection we return
 402    with a negative value. This will provoke the accept etc to return with
 403    an LOOKUP_X509. The main logic of the reinvokes the suspended call
 404    (which would normally occur after a worker has finished) and we
 405    set the user parameters.
 406 */
 407 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
 408         {
 409         srpsrvparm *p = (srpsrvparm *)arg;
 410         if (p->login == NULL && p->user == NULL )
 411                 {
 412                 p->login = SSL_get_srp_username(s);
 413                 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
 414                 return (-1) ;
 415                 }
 416
 417         if (p->user == NULL)
 418                 {
 419                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
 420                 return SSL3_AL_FATAL;
 421                 }
 422         if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
 423                                      p->user->info) < 0)
 424                 {
 425                 *ad = SSL_AD_INTERNAL_ERROR;
 426                 return SSL3_AL_FATAL;
 427                 }
 428         BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
 429         /* need to check whether there are memory leaks */
 430         p->user = NULL;
 431         p->login = NULL;
 432         return SSL_ERROR_NONE;
 433         }
 434
 435 #endif
 436
 437 #ifdef MONOLITH
 438 static void s_server_init(void)
 439         {
 440         accept_socket=-1;
 441         s_server_verify=SSL_VERIFY_NONE;
 442         s_dcert_file=NULL;
 443         s_dkey_file=NULL;
 444         s_dchain_file=NULL;
 445         s_cert_file=TEST_CERT;
 446         s_key_file=NULL;
 447         s_chain_file=NULL;
 448 #ifndef OPENSSL_NO_TLSEXT
 449         s_cert_file2=TEST_CERT2;
 450         s_key_file2=NULL;
 451         ctx2=NULL;
 452 #endif
 453 #ifdef FIONBIO
 454         s_nbio=0;
 455 #endif
 456         s_nbio_test=0;
 457         ctx=NULL;
 458         www=0;
 459
 460         bio_s_out=NULL;
 461         s_debug=0;
 462         s_msg=0;
 463         s_quiet=0;
 464         s_brief=0;
 465         hack=0;
 466 #ifndef OPENSSL_NO_ENGINE
 467         engine_id=NULL;
 468 #endif
 469         }
 470 #endif
 471
 472 static void sv_usage(void)
 473         {
 474         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 475         BIO_printf(bio_err,"\n");
 476         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 477         BIO_printf(bio_err," -checkhost host - check peer certificate matches \"host\"\n");
 478         BIO_printf(bio_err," -checkemail email - check peer certificate matches \"email\"\n");
 479         BIO_printf(bio_err," -checkip ipaddr - check peer certificate matches \"ipaddr\"\n");
 480         BIO_printf(bio_err," -context arg  - set session ID context\n");
 481         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 482         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 483         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 484         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 485         BIO_printf(bio_err," -authz arg   -  binary authz file for certificate\n");
 486 #ifndef OPENSSL_NO_TLSEXT
 487         BIO_printf(bio_err," -serverinfo arg - PEM serverinfo file for certificate\n");
 488 #endif
 489         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
 490                            "                 The CRL(s) are appended to the certificate file\n");
 491         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
 492                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
 493                            "                 the certificate file.\n");
 494         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 495         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 496         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 497         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 498         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 499         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 500         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 501         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 502         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 503         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 504         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 505         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 506 #ifndef OPENSSL_NO_ECDH
 507         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 508                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 509                            "                 (default is nistp256).\n");
 510 #endif
 511 #ifdef FIONBIO
 512         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 513 #endif
 514         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 515         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 516         BIO_printf(bio_err," -debug        - Print more output\n");
 517         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 518         BIO_printf(bio_err," -state        - Print the SSL states\n");
 519         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 520         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 521         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 522         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 523         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 524         BIO_printf(bio_err," -quiet        - No server output\n");
 525         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 526 #ifndef OPENSSL_NO_PSK
 527         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
 528         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 529 # ifndef OPENSSL_NO_JPAKE
 530         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 531 # endif
 532 #endif
 533 #ifndef OPENSSL_NO_SRP
 534         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
 535         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
 536 #endif
 537         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 538         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 539         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
 540         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
 541         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 542         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 543         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 544         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
 545         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 546         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 547         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 548         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 549         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
 550         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
 551 #ifndef OPENSSL_NO_DH
 552         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 553 #endif
 554 #ifndef OPENSSL_NO_ECDH
 555         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 556 #endif
 557         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 558         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 559         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 560         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 561         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 562 #ifndef OPENSSL_NO_ENGINE
 563         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 564 #endif
 565         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 566         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 567 #ifndef OPENSSL_NO_TLSEXT
 568         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 569         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
 570         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 571         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 572         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 573         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 574         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
 575         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
 576         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 577 # ifndef OPENSSL_NO_NEXTPROTONEG
 578         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
 579 # endif
 580         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 581         BIO_printf(bio_err," -alpn arg  - set the advertised protocols for the ALPN extension (comma-separated list)\n");
 582 #endif
 583         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 584         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 585         }
 586
 587 static int local_argc=0;
 588 static char **local_argv;
 589
 590 #ifdef CHARSET_EBCDIC
 591 static int ebcdic_new(BIO *bi);
 592 static int ebcdic_free(BIO *a);
 593 static int ebcdic_read(BIO *b, char *out, int outl);
 594 static int ebcdic_write(BIO *b, const char *in, int inl);
 595 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 596 static int ebcdic_gets(BIO *bp, char *buf, int size);
 597 static int ebcdic_puts(BIO *bp, const char *str);
 598
 599 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 600 static BIO_METHOD methods_ebcdic=
 601         {
 602         BIO_TYPE_EBCDIC_FILTER,
 603         "EBCDIC/ASCII filter",
 604         ebcdic_write,
 605         ebcdic_read,
 606         ebcdic_puts,
 607         ebcdic_gets,
 608         ebcdic_ctrl,
 609         ebcdic_new,
 610         ebcdic_free,
 611         };
 612
 613 typedef struct
 614 {
 615         size_t  alloced;
 616         char    buff[1];
 617 } EBCDIC_OUTBUFF;
 618
 619 BIO_METHOD *BIO_f_ebcdic_filter()
 620 {
 621         return(&methods_ebcdic);
 622 }
 623
 624 static int ebcdic_new(BIO *bi)
 625 {
 626         EBCDIC_OUTBUFF *wbuf;
 627
 628         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 629         wbuf->alloced = 1024;
 630         wbuf->buff[0] = '\0';
 631
 632         bi->ptr=(char *)wbuf;
 633         bi->init=1;
 634         bi->flags=0;
 635         return(1);
 636 }
 637
 638 static int ebcdic_free(BIO *a)
 639 {
 640         if (a == NULL) return(0);
 641         if (a->ptr != NULL)
 642                 OPENSSL_free(a->ptr);
 643         a->ptr=NULL;
 644         a->init=0;
 645         a->flags=0;
 646         return(1);
 647 }
 648
 649 static int ebcdic_read(BIO *b, char *out, int outl)
 650 {
 651         int ret=0;
 652
 653         if (out == NULL || outl == 0) return(0);
 654         if (b->next_bio == NULL) return(0);
 655
 656         ret=BIO_read(b->next_bio,out,outl);
 657         if (ret > 0)
 658                 ascii2ebcdic(out,out,ret);
 659         return(ret);
 660 }
 661
 662 static int ebcdic_write(BIO *b, const char *in, int inl)
 663 {
 664         EBCDIC_OUTBUFF *wbuf;
 665         int ret=0;
 666         int num;
 667         unsigned char n;
 668
 669         if ((in == NULL) || (inl <= 0)) return(0);
 670         if (b->next_bio == NULL) return(0);
 671
 672         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 673
 674         if (inl > (num = wbuf->alloced))
 675         {
 676                 num = num + num;  /* double the size */
 677                 if (num < inl)
 678                         num = inl;
 679                 OPENSSL_free(wbuf);
 680                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 681
 682                 wbuf->alloced = num;
 683                 wbuf->buff[0] = '\0';
 684
 685                 b->ptr=(char *)wbuf;
 686         }
 687
 688         ebcdic2ascii(wbuf->buff, in, inl);
 689
 690         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 691
 692         return(ret);
 693 }
 694
 695 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 696 {
 697         long ret;
 698
 699         if (b->next_bio == NULL) return(0);
 700         switch (cmd)
 701         {
 702         case BIO_CTRL_DUP:
 703                 ret=0L;
 704                 break;
 705         default:
 706                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 707                 break;
 708         }
 709         return(ret);
 710 }
 711
 712 static int ebcdic_gets(BIO *bp, char *buf, int size)
 713 {
 714         int i, ret=0;
 715         if (bp->next_bio == NULL) return(0);
 716 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 717         for (i=0; i<size-1; ++i)
 718         {
 719                 ret = ebcdic_read(bp,&buf[i],1);
 720                 if (ret <= 0)
 721                         break;
 722                 else if (buf[i] == '\n')
 723                 {
 724                         ++i;
 725                         break;
 726                 }
 727         }
 728         if (i < size)
 729                 buf[i] = '\0';
 730         return (ret < 0 && i == 0) ? ret : i;
 731 }
 732
 733 static int ebcdic_puts(BIO *bp, const char *str)
 734 {
 735         if (bp->next_bio == NULL) return(0);
 736         return ebcdic_write(bp, str, strlen(str));
 737 }
 738 #endif
 739
 740 #ifndef OPENSSL_NO_TLSEXT
 741
 742 /* This is a context that we pass to callbacks */
 743 typedef struct tlsextctx_st {
 744    char * servername;
 745    BIO * biodebug;
 746    int extension_error;
 747 } tlsextctx;
 748
 749
 750 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 751         {
 752         tlsextctx * p = (tlsextctx *) arg;
 753         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 754         if (servername && p->biodebug)
 755                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 756
 757         if (!p->servername)
 758                 return SSL_TLSEXT_ERR_NOACK;
 759
 760         if (servername)
 761                 {
 762                 if (strcmp(servername,p->servername))
 763                         return p->extension_error;
 764                 if (ctx2)
 765                         {
 766                         BIO_printf(p->biodebug,"Switching server context.\n");
 767                         SSL_set_SSL_CTX(s,ctx2);
 768                         }
 769                 }
 770         return SSL_TLSEXT_ERR_OK;
 771 }
 772
 773 /* Structure passed to cert status callback */
 774
 775 typedef struct tlsextstatusctx_st {
 776    /* Default responder to use */
 777    char *host, *path, *port;
 778    int use_ssl;
 779    int timeout;
 780    BIO *err;
 781    int verbose;
 782 } tlsextstatusctx;
 783
 784 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
 785
 786 /* Certificate Status callback. This is called when a client includes a
 787  * certificate status request extension.
 788  *
 789  * This is a simplified version. It examines certificates each time and
 790  * makes one OCSP responder query for each request.
 791  *
 792  * A full version would store details such as the OCSP certificate IDs and
 793  * minimise the number of OCSP responses by caching them until they were
 794  * considered "expired".
 795  */
 796
 797 static int cert_status_cb(SSL *s, void *arg)
 798         {
 799         tlsextstatusctx *srctx = arg;
 800         BIO *err = srctx->err;
 801         char *host, *port, *path;
 802         int use_ssl;
 803         unsigned char *rspder = NULL;
 804         int rspderlen;
 805         STACK_OF(OPENSSL_STRING) *aia = NULL;
 806         X509 *x = NULL;
 807         X509_STORE_CTX inctx;
 808         X509_OBJECT obj;
 809         OCSP_REQUEST *req = NULL;
 810         OCSP_RESPONSE *resp = NULL;
 811         OCSP_CERTID *id = NULL;
 812         STACK_OF(X509_EXTENSION) *exts;
 813         int ret = SSL_TLSEXT_ERR_NOACK;
 814         int i;
 815 #if 0
 816 STACK_OF(OCSP_RESPID) *ids;
 817 SSL_get_tlsext_status_ids(s, &ids);
 818 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
 819 #endif
 820         if (srctx->verbose)
 821                 BIO_puts(err, "cert_status: callback called\n");
 822         /* Build up OCSP query from server certificate */
 823         x = SSL_get_certificate(s);
 824         aia = X509_get1_ocsp(x);
 825         if (aia)
 826                 {
 827                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
 828                         &host, &port, &path, &use_ssl))
 829                         {
 830                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
 831                         goto err;
 832                         }
 833                 if (srctx->verbose)
 834                         BIO_printf(err, "cert_status: AIA URL: %s\n",
 835                                         sk_OPENSSL_STRING_value(aia, 0));
 836                 }
 837         else
 838                 {
 839                 if (!srctx->host)
 840                         {
 841                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
 842                         goto done;
 843                         }
 844                 host = srctx->host;
 845                 path = srctx->path;
 846                 port = srctx->port;
 847                 use_ssl = srctx->use_ssl;
 848                 }
 849
 850         if (!X509_STORE_CTX_init(&inctx,
 851                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
 852                                 NULL, NULL))
 853                 goto err;
 854         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
 855                                 X509_get_issuer_name(x),&obj) <= 0)
 856                 {
 857                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
 858                 X509_STORE_CTX_cleanup(&inctx);
 859                 goto done;
 860                 }
 861         req = OCSP_REQUEST_new();
 862         if (!req)
 863                 goto err;
 864         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
 865         X509_free(obj.data.x509);
 866         X509_STORE_CTX_cleanup(&inctx);
 867         if (!id)
 868                 goto err;
 869         if (!OCSP_request_add0_id(req, id))
 870                 goto err;
 871         id = NULL;
 872         /* Add any extensions to the request */
 873         SSL_get_tlsext_status_exts(s, &exts);
 874         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
 875                 {
 876                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
 877                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
 878                         goto err;
 879                 }
 880         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
 881                                         srctx->timeout);
 882         if (!resp)
 883                 {
 884                 BIO_puts(err, "cert_status: error querying responder\n");
 885                 goto done;
 886                 }
 887         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
 888         if (rspderlen <= 0)
 889                 goto err;
 890         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
 891         if (srctx->verbose)
 892                 {
 893                 BIO_puts(err, "cert_status: ocsp response sent:\n");
 894                 OCSP_RESPONSE_print(err, resp, 2);
 895                 }
 896         ret = SSL_TLSEXT_ERR_OK;
 897         done:
 898         if (ret != SSL_TLSEXT_ERR_OK)
 899                 ERR_print_errors(err);
 900         if (aia)
 901                 {
 902                 OPENSSL_free(host);
 903                 OPENSSL_free(path);
 904                 OPENSSL_free(port);
 905                 X509_email_free(aia);
 906                 }
 907         if (id)
 908                 OCSP_CERTID_free(id);
 909         if (req)
 910                 OCSP_REQUEST_free(req);
 911         if (resp)
 912                 OCSP_RESPONSE_free(resp);
 913         return ret;
 914         err:
 915         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
 916         goto done;
 917         }
 918
 919 # ifndef OPENSSL_NO_NEXTPROTONEG
 920 /* This is the context that we pass to next_proto_cb */
 921 typedef struct tlsextnextprotoctx_st {
 922         unsigned char *data;
 923         unsigned int len;
 924 } tlsextnextprotoctx;
 925
 926 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
 927         {
 928         tlsextnextprotoctx *next_proto = arg;
 929
 930         *data = next_proto->data;
 931         *len = next_proto->len;
 932
 933         return SSL_TLSEXT_ERR_OK;
 934         }
 935 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 936
 937 /* This the context that we pass to alpn_cb */
 938 typedef struct tlsextalpnctx_st {
 939         unsigned char *data;
 940         unsigned short len;
 941 } tlsextalpnctx;
 942
 943 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 944         {
 945         tlsextalpnctx *alpn_ctx = arg;
 946
 947         if (!s_quiet)
 948                 {
 949                 /* We can assume that |in| is syntactically valid. */
 950                 unsigned i;
 951                 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
 952                 for (i = 0; i < inlen; )
 953                         {
 954                         if (i)
 955                                 BIO_write(bio_s_out, ", ", 2);
 956                         BIO_write(bio_s_out, &in[i + 1], in[i]);
 957                         i += in[i] + 1;
 958                         }
 959                 BIO_write(bio_s_out, "\n", 1);
 960                 }
 961
 962         if (SSL_select_next_proto((unsigned char**) out, outlen, alpn_ctx->data, alpn_ctx->len, in, inlen) !=
 963             OPENSSL_NPN_NEGOTIATED)
 964                 {
 965                 return SSL_TLSEXT_ERR_NOACK;
 966                 }
 967
 968         if (!s_quiet)
 969                 {
 970                 BIO_printf(bio_s_out, "ALPN protocols selected: ");
 971                 BIO_write(bio_s_out, *out, *outlen);
 972                 BIO_write(bio_s_out, "\n", 1);
 973                 }
 974
 975         return SSL_TLSEXT_ERR_OK;
 976         }
 977 #endif  /* ndef OPENSSL_NO_TLSEXT */
 978
 979 int MAIN(int, char **);
 980
 981 #ifndef OPENSSL_NO_JPAKE
 982 static char *jpake_secret = NULL;
 983 #define no_jpake !jpake_secret
 984 #else
 985 #define no_jpake 1
 986 #endif
 987 #ifndef OPENSSL_NO_SRP
 988         static srpsrvparm srp_callback_parm;
 989 #endif
 990 static char *srtp_profiles = NULL;
 991
 992 int MAIN(int argc, char *argv[])
 993         {
 994         X509_VERIFY_PARAM *vpm = NULL;
 995         int badarg = 0;
 996         short port=PORT;
 997         char *CApath=NULL,*CAfile=NULL;
 998         char *chCApath=NULL,*chCAfile=NULL;
 999         char *vfyCApath=NULL,*vfyCAfile=NULL;
1000         unsigned char *context = NULL;
1001         char *dhfile = NULL;
1002         int badop=0;
1003         int ret=1;
1004         int build_chain = 0;
1005         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
1006         int state=0;
1007         const SSL_METHOD *meth=NULL;
1008         int socket_type=SOCK_STREAM;
1009         ENGINE *e=NULL;
1010         char *inrand=NULL;
1011         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
1012         char *passarg = NULL, *pass = NULL;
1013         char *dpassarg = NULL, *dpass = NULL;
1014         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
1015         X509 *s_cert = NULL, *s_dcert = NULL;
1016         STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
1017         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
1018         int no_cache = 0, ext_cache = 0;
1019         int rev = 0, naccept = -1;
1020 #ifndef OPENSSL_NO_TLSEXT
1021         EVP_PKEY *s_key2 = NULL;
1022         X509 *s_cert2 = NULL;
1023         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
1024 # ifndef OPENSSL_NO_NEXTPROTONEG
1025         const char *next_proto_neg_in = NULL;
1026         tlsextnextprotoctx next_proto;
1027         const char *alpn_in = NULL;
1028         tlsextalpnctx alpn_ctx = { NULL, 0};
1029 # endif
1030 #endif
1031 #ifndef OPENSSL_NO_PSK
1032         /* by default do not send a PSK identity hint */
1033         static char *psk_identity_hint=NULL;
1034 #endif
1035 #ifndef OPENSSL_NO_SRP
1036         char *srpuserseed = NULL;
1037         char *srp_verifier_file = NULL;
1038 #endif
1039         SSL_EXCERT *exc = NULL;
1040         SSL_CONF_CTX *cctx = NULL;
1041         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
1042
1043         char *crl_file = NULL;
1044         int crl_format = FORMAT_PEM;
1045         int crl_download = 0;
1046         STACK_OF(X509_CRL) *crls = NULL;
1047
1048         meth=SSLv23_server_method();
1049
1050         local_argc=argc;
1051         local_argv=argv;
1052
1053         apps_startup();
1054 #ifdef MONOLITH
1055         s_server_init();
1056 #endif
1057
1058         if (bio_err == NULL)
1059                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
1060
1061         if (!load_config(bio_err, NULL))
1062                 goto end;
1063
1064         cctx = SSL_CONF_CTX_new();
1065         if (!cctx)
1066                 goto end;
1067         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
1068         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
1069
1070         verify_depth=0;
1071 #ifdef FIONBIO
1072         s_nbio=0;
1073 #endif
1074         s_nbio_test=0;
1075
1076         argc--;
1077         argv++;
1078
1079         while (argc >= 1)
1080                 {
1081                 if      ((strcmp(*argv,"-port") == 0) ||
1082                          (strcmp(*argv,"-accept") == 0))
1083                         {
1084                         if (--argc < 1) goto bad;
1085                         if (!extract_port(*(++argv),&port))
1086                                 goto bad;
1087                         }
1088                 else if (strcmp(*argv,"-naccept") == 0)
1089                         {
1090                         if (--argc < 1) goto bad;
1091                         naccept = atol(*(++argv));
1092                         if (naccept <= 0)
1093                                 {
1094                                 BIO_printf(bio_err, "bad accept value %s\n",
1095                                                         *argv);
1096                                 goto bad;
1097                                 }
1098                         }
1099                 else if (strcmp(*argv,"-verify") == 0)
1100                         {
1101                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1102                         if (--argc < 1) goto bad;
1103                         verify_depth=atoi(*(++argv));
1104                         if (!s_quiet)
1105                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1106                         }
1107                 else if (strcmp(*argv,"-Verify") == 0)
1108                         {
1109                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1110                                 SSL_VERIFY_CLIENT_ONCE;
1111                         if (--argc < 1) goto bad;
1112                         verify_depth=atoi(*(++argv));
1113                         if (!s_quiet)
1114                                 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1115                         }
1116                 else if (strcmp(*argv,"-context") == 0)
1117                         {
1118                         if (--argc < 1) goto bad;
1119                         context= (unsigned char *)*(++argv);
1120                         }
1121                 else if (strcmp(*argv,"-cert") == 0)
1122                         {
1123                         if (--argc < 1) goto bad;
1124                         s_cert_file= *(++argv);
1125                         }
1126                 else if (strcmp(*argv,"-CRL") == 0)
1127                         {
1128                         if (--argc < 1) goto bad;
1129                         crl_file= *(++argv);
1130                         }
1131                 else if (strcmp(*argv,"-crl_download") == 0)
1132                         crl_download = 1;
1133 #ifndef OPENSSL_NO_TLSEXT
1134                 else if (strcmp(*argv,"-authz") == 0)
1135                         {
1136                         if (--argc < 1) goto bad;
1137                         s_authz_file = *(++argv);
1138                         }
1139                 else if (strcmp(*argv,"-serverinfo") == 0)
1140                         {
1141                         if (--argc < 1) goto bad;
1142                         s_serverinfo_file = *(++argv);
1143                         }
1144 #endif
1145                 else if (strcmp(*argv,"-certform") == 0)
1146                         {
1147                         if (--argc < 1) goto bad;
1148                         s_cert_format = str2fmt(*(++argv));
1149                         }
1150                 else if (strcmp(*argv,"-key") == 0)
1151                         {
1152                         if (--argc < 1) goto bad;
1153                         s_key_file= *(++argv);
1154                         }
1155                 else if (strcmp(*argv,"-keyform") == 0)
1156                         {
1157                         if (--argc < 1) goto bad;
1158                         s_key_format = str2fmt(*(++argv));
1159                         }
1160                 else if (strcmp(*argv,"-pass") == 0)
1161                         {
1162                         if (--argc < 1) goto bad;
1163                         passarg = *(++argv);
1164                         }
1165                 else if (strcmp(*argv,"-cert_chain") == 0)
1166                         {
1167                         if (--argc < 1) goto bad;
1168                         s_chain_file= *(++argv);
1169                         }
1170                 else if (strcmp(*argv,"-dhparam") == 0)
1171                         {
1172                         if (--argc < 1) goto bad;
1173                         dhfile = *(++argv);
1174                         }
1175                 else if (strcmp(*argv,"-dcertform") == 0)
1176                         {
1177                         if (--argc < 1) goto bad;
1178                         s_dcert_format = str2fmt(*(++argv));
1179                         }
1180                 else if (strcmp(*argv,"-dcert") == 0)
1181                         {
1182                         if (--argc < 1) goto bad;
1183                         s_dcert_file= *(++argv);
1184                         }
1185                 else if (strcmp(*argv,"-dkeyform") == 0)
1186                         {
1187                         if (--argc < 1) goto bad;
1188                         s_dkey_format = str2fmt(*(++argv));
1189                         }
1190                 else if (strcmp(*argv,"-dpass") == 0)
1191                         {
1192                         if (--argc < 1) goto bad;
1193                         dpassarg = *(++argv);
1194                         }
1195                 else if (strcmp(*argv,"-dkey") == 0)
1196                         {
1197                         if (--argc < 1) goto bad;
1198                         s_dkey_file= *(++argv);
1199                         }
1200                 else if (strcmp(*argv,"-dcert_chain") == 0)
1201                         {
1202                         if (--argc < 1) goto bad;
1203                         s_dchain_file= *(++argv);
1204                         }
1205                 else if (strcmp(*argv,"-nocert") == 0)
1206                         {
1207                         nocert=1;
1208                         }
1209                 else if (strcmp(*argv,"-CApath") == 0)
1210                         {
1211                         if (--argc < 1) goto bad;
1212                         CApath= *(++argv);
1213                         }
1214                 else if (strcmp(*argv,"-chainCApath") == 0)
1215                         {
1216                         if (--argc < 1) goto bad;
1217                         chCApath= *(++argv);
1218                         }
1219                 else if (strcmp(*argv,"-verifyCApath") == 0)
1220                         {
1221                         if (--argc < 1) goto bad;
1222                         vfyCApath= *(++argv);
1223                         }
1224                 else if (strcmp(*argv,"-no_cache") == 0)
1225                         no_cache = 1;
1226                 else if (strcmp(*argv,"-ext_cache") == 0)
1227                         ext_cache = 1;
1228                 else if (strcmp(*argv,"-CRLform") == 0)
1229                         {
1230                         if (--argc < 1) goto bad;
1231                         crl_format = str2fmt(*(++argv));
1232                         }
1233                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1234                         {
1235                         if (badarg)
1236                                 goto bad;
1237                         continue;
1238                         }
1239                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
1240                         {
1241                         if (badarg)
1242                                 goto bad;
1243                         continue;
1244                         }
1245                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
1246                         {
1247                         if (badarg)
1248                                 goto bad;
1249                         continue;
1250                         }
1251                 else if (strcmp(*argv,"-verify_return_error") == 0)
1252                         verify_return_error = 1;
1253                 else if (strcmp(*argv,"-verify_quiet") == 0)
1254                         verify_quiet = 1;
1255                 else if (strcmp(*argv,"-build_chain") == 0)
1256                         build_chain = 1;
1257                 else if (strcmp(*argv,"-CAfile") == 0)
1258                         {
1259                         if (--argc < 1) goto bad;
1260                         CAfile= *(++argv);
1261                         }
1262                 else if (strcmp(*argv,"-chainCAfile") == 0)
1263                         {
1264                         if (--argc < 1) goto bad;
1265                         chCAfile= *(++argv);
1266                         }
1267                 else if (strcmp(*argv,"-verifyCAfile") == 0)
1268                         {
1269                         if (--argc < 1) goto bad;
1270                         vfyCAfile= *(++argv);
1271                         }
1272 #ifdef FIONBIO
1273                 else if (strcmp(*argv,"-nbio") == 0)
1274                         { s_nbio=1; }
1275 #endif
1276                 else if (strcmp(*argv,"-nbio_test") == 0)
1277                         {
1278 #ifdef FIONBIO
1279                         s_nbio=1;
1280 #endif
1281                         s_nbio_test=1;
1282                         }
1283                 else if (strcmp(*argv,"-ign_eof") == 0)
1284                         s_ign_eof=1;
1285                 else if (strcmp(*argv,"-no_ign_eof") == 0)
1286                         s_ign_eof=0;
1287                 else if (strcmp(*argv,"-debug") == 0)
1288                         { s_debug=1; }
1289 #ifndef OPENSSL_NO_TLSEXT
1290                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1291                         s_tlsextdebug=1;
1292                 else if (strcmp(*argv,"-status") == 0)
1293                         s_tlsextstatus=1;
1294                 else if (strcmp(*argv,"-status_verbose") == 0)
1295                         {
1296                         s_tlsextstatus=1;
1297                         tlscstatp.verbose = 1;
1298                         }
1299                 else if (!strcmp(*argv, "-status_timeout"))
1300                         {
1301                         s_tlsextstatus=1;
1302                         if (--argc < 1) goto bad;
1303                         tlscstatp.timeout = atoi(*(++argv));
1304                         }
1305                 else if (!strcmp(*argv, "-status_url"))
1306                         {
1307                         s_tlsextstatus=1;
1308                         if (--argc < 1) goto bad;
1309                         if (!OCSP_parse_url(*(++argv),
1310                                         &tlscstatp.host,
1311                                         &tlscstatp.port,
1312                                         &tlscstatp.path,
1313                                         &tlscstatp.use_ssl))
1314                                 {
1315                                 BIO_printf(bio_err, "Error parsing URL\n");
1316                                 goto bad;
1317                                 }
1318                         }
1319 #endif
1320                 else if (strcmp(*argv,"-msg") == 0)
1321                         { s_msg=1; }
1322                 else if (strcmp(*argv,"-msgfile") == 0)
1323                         {
1324                         if (--argc < 1) goto bad;
1325                         bio_s_msg = BIO_new_file(*(++argv), "w");
1326                         }
1327 #ifndef OPENSSL_NO_SSL_TRACE
1328                 else if (strcmp(*argv,"-trace") == 0)
1329                         { s_msg=2; }
1330 #endif
1331                 else if (strcmp(*argv,"-hack") == 0)
1332                         { hack=1; }
1333                 else if (strcmp(*argv,"-state") == 0)
1334                         { state=1; }
1335                 else if (strcmp(*argv,"-crlf") == 0)
1336                         { s_crlf=1; }
1337                 else if (strcmp(*argv,"-quiet") == 0)
1338                         { s_quiet=1; }
1339                 else if (strcmp(*argv,"-brief") == 0)
1340                         {
1341                         s_quiet=1;
1342                         s_brief=1;
1343                         verify_quiet=1;
1344                         }
1345                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1346                         { no_tmp_rsa=1; }
1347                 else if (strcmp(*argv,"-no_dhe") == 0)
1348                         { no_dhe=1; }
1349                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1350                         { no_ecdhe=1; }
1351                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1352                         { no_resume_ephemeral = 1; }
1353 #ifndef OPENSSL_NO_PSK
1354                 else if (strcmp(*argv,"-psk_hint") == 0)
1355                         {
1356                         if (--argc < 1) goto bad;
1357                         psk_identity_hint= *(++argv);
1358                         }
1359                 else if (strcmp(*argv,"-psk") == 0)
1360                         {
1361                         size_t i;
1362
1363                         if (--argc < 1) goto bad;
1364                         psk_key=*(++argv);
1365                         for (i=0; i<strlen(psk_key); i++)
1366                                 {
1367                                 if (isxdigit((unsigned char)psk_key[i]))
1368                                         continue;
1369                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1370                                 goto bad;
1371                                 }
1372                         }
1373 #endif
1374 #ifndef OPENSSL_NO_SRP
1375                 else if (strcmp(*argv, "-srpvfile") == 0)
1376                         {
1377                         if (--argc < 1) goto bad;
1378                         srp_verifier_file = *(++argv);
1379                         meth = TLSv1_server_method();
1380                         }
1381                 else if (strcmp(*argv, "-srpuserseed") == 0)
1382                         {
1383                         if (--argc < 1) goto bad;
1384                         srpuserseed = *(++argv);
1385                         meth = TLSv1_server_method();
1386                         }
1387 #endif
1388                 else if (strcmp(*argv,"-rev") == 0)
1389                         { rev=1; }
1390                 else if (strcmp(*argv,"-www") == 0)
1391                         { www=1; }
1392                 else if (strcmp(*argv,"-WWW") == 0)
1393                         { www=2; }
1394                 else if (strcmp(*argv,"-HTTP") == 0)
1395                         { www=3; }
1396 #ifndef OPENSSL_NO_SSL2
1397                 else if (strcmp(*argv,"-ssl2") == 0)
1398                         { meth=SSLv2_server_method(); }
1399 #endif
1400 #ifndef OPENSSL_NO_SSL3
1401                 else if (strcmp(*argv,"-ssl3") == 0)
1402                         { meth=SSLv3_server_method(); }
1403 #endif
1404 #ifndef OPENSSL_NO_TLS1
1405                 else if (strcmp(*argv,"-tls1") == 0)
1406                         { meth=TLSv1_server_method(); }
1407                 else if (strcmp(*argv,"-tls1_1") == 0)
1408                         { meth=TLSv1_1_server_method(); }
1409                 else if (strcmp(*argv,"-tls1_2") == 0)
1410                         { meth=TLSv1_2_server_method(); }
1411 #endif
1412 #ifndef OPENSSL_NO_DTLS1
1413                 else if (strcmp(*argv,"-dtls1") == 0)
1414                         {
1415                         meth=DTLSv1_server_method();
1416                         socket_type = SOCK_DGRAM;
1417                         }
1418                 else if (strcmp(*argv,"-timeout") == 0)
1419                         enable_timeouts = 1;
1420                 else if (strcmp(*argv,"-mtu") == 0)
1421                         {
1422                         if (--argc < 1) goto bad;
1423                         socket_mtu = atol(*(++argv));
1424                         }
1425                 else if (strcmp(*argv, "-chain") == 0)
1426                         cert_chain = 1;
1427 #endif
1428                 else if (strcmp(*argv, "-id_prefix") == 0)
1429                         {
1430                         if (--argc < 1) goto bad;
1431                         session_id_prefix = *(++argv);
1432                         }
1433 #ifndef OPENSSL_NO_ENGINE
1434                 else if (strcmp(*argv,"-engine") == 0)
1435                         {
1436                         if (--argc < 1) goto bad;
1437                         engine_id= *(++argv);
1438                         }
1439 #endif
1440                 else if (strcmp(*argv,"-rand") == 0)
1441                         {
1442                         if (--argc < 1) goto bad;
1443                         inrand= *(++argv);
1444                         }
1445 #ifndef OPENSSL_NO_TLSEXT
1446                 else if (strcmp(*argv,"-servername") == 0)
1447                         {
1448                         if (--argc < 1) goto bad;
1449                         tlsextcbp.servername= *(++argv);
1450                         }
1451                 else if (strcmp(*argv,"-servername_fatal") == 0)
1452                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1453                 else if (strcmp(*argv,"-cert2") == 0)
1454                         {
1455                         if (--argc < 1) goto bad;
1456                         s_cert_file2= *(++argv);
1457                         }
1458                 else if (strcmp(*argv,"-key2") == 0)
1459                         {
1460                         if (--argc < 1) goto bad;
1461                         s_key_file2= *(++argv);
1462                         }
1463 # ifndef OPENSSL_NO_NEXTPROTONEG
1464                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1465                         {
1466                         if (--argc < 1) goto bad;
1467                         next_proto_neg_in = *(++argv);
1468                         }
1469                 else if (strcmp(*argv,"-alpn") == 0)
1470                         {
1471                         if (--argc < 1) goto bad;
1472                         alpn_in = *(++argv);
1473                         }
1474 # endif
1475 #endif
1476 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1477                 else if (strcmp(*argv,"-jpake") == 0)
1478                         {
1479                         if (--argc < 1) goto bad;
1480                         jpake_secret = *(++argv);
1481                         }
1482 #endif
1483                 else if (strcmp(*argv,"-use_srtp") == 0)
1484                         {
1485                         if (--argc < 1) goto bad;
1486                         srtp_profiles = *(++argv);
1487                         }
1488                 else if (strcmp(*argv,"-keymatexport") == 0)
1489                         {
1490                         if (--argc < 1) goto bad;
1491                         keymatexportlabel= *(++argv);
1492                         }
1493                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1494                         {
1495                         if (--argc < 1) goto bad;
1496                         keymatexportlen=atoi(*(++argv));
1497                         if (keymatexportlen == 0) goto bad;
1498                         }
1499                 else
1500                         {
1501                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1502                         badop=1;
1503                         break;
1504                         }
1505                 argc--;
1506                 argv++;
1507                 }
1508         if (badop)
1509                 {
1510 bad:
1511                 sv_usage();
1512                 goto end;
1513                 }
1514
1515 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1516         if (jpake_secret)
1517                 {
1518                 if (psk_key)
1519                         {
1520                         BIO_printf(bio_err,
1521                                    "Can't use JPAKE and PSK together\n");
1522                         goto end;
1523                         }
1524                 psk_identity = "JPAKE";
1525                 }
1526 #endif
1527
1528         SSL_load_error_strings();
1529         OpenSSL_add_ssl_algorithms();
1530
1531 #ifndef OPENSSL_NO_ENGINE
1532         e = setup_engine(bio_err, engine_id, 1);
1533 #endif
1534
1535         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1536                 {
1537                 BIO_printf(bio_err, "Error getting password\n");
1538                 goto end;
1539                 }
1540
1541
1542         if (s_key_file == NULL)
1543                 s_key_file = s_cert_file;
1544 #ifndef OPENSSL_NO_TLSEXT
1545         if (s_key_file2 == NULL)
1546                 s_key_file2 = s_cert_file2;
1547 #endif
1548
1549         if (!load_excert(&exc, bio_err))
1550                 goto end;
1551
1552         if (nocert == 0)
1553                 {
1554                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1555                        "server certificate private key file");
1556                 if (!s_key)
1557                         {
1558                         ERR_print_errors(bio_err);
1559                         goto end;
1560                         }
1561
1562                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1563                         NULL, e, "server certificate file");
1564
1565                 if (!s_cert)
1566                         {
1567                         ERR_print_errors(bio_err);
1568                         goto end;
1569                         }
1570                 if (s_chain_file)
1571                         {
1572                         s_chain = load_certs(bio_err, s_chain_file,FORMAT_PEM,
1573                                         NULL, e, "server certificate chain");
1574                         if (!s_chain)
1575                                 goto end;
1576                         }
1577
1578 #ifndef OPENSSL_NO_TLSEXT
1579                 if (tlsextcbp.servername)
1580                         {
1581                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1582                                 "second server certificate private key file");
1583                         if (!s_key2)
1584                                 {
1585                                 ERR_print_errors(bio_err);
1586                                 goto end;
1587                                 }
1588
1589                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1590                                 NULL, e, "second server certificate file");
1591
1592                         if (!s_cert2)
1593                                 {
1594                                 ERR_print_errors(bio_err);
1595                                 goto end;
1596                                 }
1597                         }
1598 #endif /* OPENSSL_NO_TLSEXT */
1599                 }
1600
1601 #if !defined(OPENSSL_NO_TLSEXT)
1602 # if !defined(OPENSSL_NO_NEXTPROTONEG)
1603         if (next_proto_neg_in)
1604                 {
1605                 unsigned short len;
1606                 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1607                 if (next_proto.data == NULL)
1608                         goto end;
1609                 next_proto.len = len;
1610                 }
1611         else
1612                 {
1613                 next_proto.data = NULL;
1614                 }
1615 # endif
1616         alpn_ctx.data = NULL;
1617         if (alpn_in)
1618                 {
1619                 unsigned short len;
1620                 alpn_ctx.data = next_protos_parse(&len, alpn_in);
1621                 if (alpn_ctx.data == NULL)
1622                         goto end;
1623                 alpn_ctx.len = len;
1624                 }
1625 #endif
1626
1627         if (crl_file)
1628                 {
1629                 X509_CRL *crl;
1630                 crl = load_crl(crl_file, crl_format);
1631                 if (!crl)
1632                         {
1633                         BIO_puts(bio_err, "Error loading CRL\n");
1634                         ERR_print_errors(bio_err);
1635                         goto end;
1636                         }
1637                 crls = sk_X509_CRL_new_null();
1638                 if (!crls || !sk_X509_CRL_push(crls, crl))
1639                         {
1640                         BIO_puts(bio_err, "Error adding CRL\n");
1641                         ERR_print_errors(bio_err);
1642                         X509_CRL_free(crl);
1643                         goto end;
1644                         }
1645                 }
1646
1647
1648         if (s_dcert_file)
1649                 {
1650
1651                 if (s_dkey_file == NULL)
1652                         s_dkey_file = s_dcert_file;
1653
1654                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1655                                 0, dpass, e,
1656                                "second certificate private key file");
1657                 if (!s_dkey)
1658                         {
1659                         ERR_print_errors(bio_err);
1660                         goto end;
1661                         }
1662
1663                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1664                                 NULL, e, "second server certificate file");
1665
1666                 if (!s_dcert)
1667                         {
1668                         ERR_print_errors(bio_err);
1669                         goto end;
1670                         }
1671                 if (s_dchain_file)
1672                         {
1673                         s_dchain = load_certs(bio_err, s_dchain_file,FORMAT_PEM,
1674                                 NULL, e, "second server certificate chain");
1675                         if (!s_dchain)
1676                                 goto end;
1677                         }
1678
1679                 }
1680
1681         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1682                 && !RAND_status())
1683                 {
1684                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1685                 }
1686         if (inrand != NULL)
1687                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1688                         app_RAND_load_files(inrand));
1689
1690         if (bio_s_out == NULL)
1691                 {
1692                 if (s_quiet && !s_debug)
1693                         {
1694                         bio_s_out=BIO_new(BIO_s_null());
1695                         if (s_msg && !bio_s_msg)
1696                                 bio_s_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1697                         }
1698                 else
1699                         {
1700                         if (bio_s_out == NULL)
1701                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1702                         }
1703                 }
1704
1705 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1706         if (nocert)
1707 #endif
1708                 {
1709                 s_cert_file=NULL;
1710                 s_key_file=NULL;
1711                 s_dcert_file=NULL;
1712                 s_dkey_file=NULL;
1713 #ifndef OPENSSL_NO_TLSEXT
1714                 s_cert_file2=NULL;
1715                 s_key_file2=NULL;
1716 #endif
1717                 }
1718
1719         ctx=SSL_CTX_new(meth);
1720         if (ctx == NULL)
1721                 {
1722                 ERR_print_errors(bio_err);
1723                 goto end;
1724                 }
1725         if (session_id_prefix)
1726                 {
1727                 if(strlen(session_id_prefix) >= 32)
1728                         BIO_printf(bio_err,
1729 "warning: id_prefix is too long, only one new session will be possible\n");
1730                 else if(strlen(session_id_prefix) >= 16)
1731                         BIO_printf(bio_err,
1732 "warning: id_prefix is too long if you use SSLv2\n");
1733                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1734                         {
1735                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1736                         ERR_print_errors(bio_err);
1737                         goto end;
1738                         }
1739                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1740                 }
1741         SSL_CTX_set_quiet_shutdown(ctx,1);
1742         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1743         if (exc) ssl_ctx_set_excert(ctx, exc);
1744         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1745          * Setting read ahead solves this problem.
1746          */
1747         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1748
1749         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1750         if (no_cache)
1751                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1752         else if (ext_cache)
1753                 init_session_cache_ctx(ctx);
1754         else
1755                 SSL_CTX_sess_set_cache_size(ctx,128);
1756
1757         if (srtp_profiles != NULL)
1758                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1759
1760 #if 0
1761         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1762 #endif
1763
1764 #if 0
1765         if (s_cert_file == NULL)
1766                 {
1767                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1768                 goto end;
1769                 }
1770 #endif
1771
1772         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1773                 (!SSL_CTX_set_default_verify_paths(ctx)))
1774                 {
1775                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1776                 ERR_print_errors(bio_err);
1777                 /* goto end; */
1778                 }
1779         if (vpm)
1780                 SSL_CTX_set1_param(ctx, vpm);
1781
1782         ssl_ctx_add_crls(ctx, crls, 0);
1783
1784         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1785                 goto end;
1786
1787         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1788                                                 crls, crl_download))
1789                 {
1790                 BIO_printf(bio_err, "Error loading store locations\n");
1791                 ERR_print_errors(bio_err);
1792                 goto end;
1793                 }
1794
1795 #ifndef OPENSSL_NO_TLSEXT
1796         if (s_cert2)
1797                 {
1798                 ctx2=SSL_CTX_new(meth);
1799                 if (ctx2 == NULL)
1800                         {
1801                         ERR_print_errors(bio_err);
1802                         goto end;
1803                         }
1804                 }
1805
1806         if (ctx2)
1807                 {
1808                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1809
1810                 if (session_id_prefix)
1811                         {
1812                         if(strlen(session_id_prefix) >= 32)
1813                                 BIO_printf(bio_err,
1814                                         "warning: id_prefix is too long, only one new session will be possible\n");
1815                         else if(strlen(session_id_prefix) >= 16)
1816                                 BIO_printf(bio_err,
1817                                         "warning: id_prefix is too long if you use SSLv2\n");
1818                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1819                                 {
1820                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1821                                 ERR_print_errors(bio_err);
1822                                 goto end;
1823                                 }
1824                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1825                         }
1826                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1827                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1828                 if (exc) ssl_ctx_set_excert(ctx2, exc);
1829                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1830                  * Setting read ahead solves this problem.
1831                  */
1832                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1833
1834                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1835
1836                 if (no_cache)
1837                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1838                 else if (ext_cache)
1839                         init_session_cache_ctx(ctx2);
1840                 else
1841                         SSL_CTX_sess_set_cache_size(ctx2,128);
1842
1843                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1844                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1845                         {
1846                         ERR_print_errors(bio_err);
1847                         }
1848                 if (vpm)
1849                         SSL_CTX_set1_param(ctx2, vpm);
1850
1851                 ssl_ctx_add_crls(ctx2, crls, 0);
1852
1853                 if (!args_ssl_call(ctx2, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1854                         goto end;
1855
1856                 }
1857
1858 # ifndef OPENSSL_NO_NEXTPROTONEG
1859         if (next_proto.data)
1860                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1861 # endif
1862         if (alpn_ctx.data)
1863                 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1864 #endif
1865
1866 #ifndef OPENSSL_NO_DH
1867         if (!no_dhe)
1868                 {
1869                 DH *dh=NULL;
1870
1871                 if (dhfile)
1872                         dh = load_dh_param(dhfile);
1873                 else if (s_cert_file)
1874                         dh = load_dh_param(s_cert_file);
1875
1876                 if (dh != NULL)
1877                         {
1878                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1879                         }
1880                 else
1881                         {
1882                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1883                         dh=get_dh512();
1884                         }
1885                 (void)BIO_flush(bio_s_out);
1886
1887                 SSL_CTX_set_tmp_dh(ctx,dh);
1888 #ifndef OPENSSL_NO_TLSEXT
1889                 if (ctx2)
1890                         {
1891                         if (!dhfile)
1892                                 {
1893                                 DH *dh2=load_dh_param(s_cert_file2);
1894                                 if (dh2 != NULL)
1895                                         {
1896                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1897                                         (void)BIO_flush(bio_s_out);
1898
1899                                         DH_free(dh);
1900                                         dh = dh2;
1901                                         }
1902                                 }
1903                         SSL_CTX_set_tmp_dh(ctx2,dh);
1904                         }
1905 #endif
1906                 DH_free(dh);
1907                 }
1908 #endif
1909
1910         if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1911                 goto end;
1912 #ifndef OPENSSL_NO_TLSEXT
1913         if (s_authz_file != NULL && !SSL_CTX_use_authz_file(ctx, s_authz_file))
1914                 goto end;
1915         if (s_serverinfo_file != NULL
1916             && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file))
1917                 goto end;
1918 #endif
1919 #ifndef OPENSSL_NO_TLSEXT
1920         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2, NULL, build_chain))
1921                 goto end;
1922 #endif
1923         if (s_dcert != NULL)
1924                 {
1925                 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
1926                         goto end;
1927                 }
1928
1929 #ifndef OPENSSL_NO_RSA
1930 #if 1
1931         if (!no_tmp_rsa)
1932                 {
1933                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1934 #ifndef OPENSSL_NO_TLSEXT
1935                 if (ctx2)
1936                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1937 #endif
1938                 }
1939 #else
1940         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1941                 {
1942                 RSA *rsa;
1943
1944                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1945                 BIO_flush(bio_s_out);
1946
1947                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1948
1949                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1950                         {
1951                         ERR_print_errors(bio_err);
1952                         goto end;
1953                         }
1954 #ifndef OPENSSL_NO_TLSEXT
1955                         if (ctx2)
1956                                 {
1957                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1958                                         {
1959                                         ERR_print_errors(bio_err);
1960                                         goto end;
1961                                         }
1962                                 }
1963 #endif
1964                 RSA_free(rsa);
1965                 BIO_printf(bio_s_out,"\n");
1966                 }
1967 #endif
1968 #endif
1969
1970 #ifndef OPENSSL_NO_PSK
1971 #ifdef OPENSSL_NO_JPAKE
1972         if (psk_key != NULL)
1973 #else
1974         if (psk_key != NULL || jpake_secret)
1975 #endif
1976                 {
1977                 if (s_debug)
1978                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
1979                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1980                 }
1981
1982         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1983                 {
1984                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1985                 ERR_print_errors(bio_err);
1986                 goto end;
1987                 }
1988 #endif
1989
1990         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1991         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1992                 sizeof s_server_session_id_context);
1993
1994         /* Set DTLS cookie generation and verification callbacks */
1995         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1996         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1997
1998 #ifndef OPENSSL_NO_TLSEXT
1999         if (ctx2)
2000                 {
2001                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
2002                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
2003                         sizeof s_server_session_id_context);
2004
2005                 tlsextcbp.biodebug = bio_s_out;
2006                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2007                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2008                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2009                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2010                 }
2011 #endif
2012
2013 #ifndef OPENSSL_NO_SRP
2014         if (srp_verifier_file != NULL)
2015                 {
2016                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
2017                 srp_callback_parm.user = NULL;
2018                 srp_callback_parm.login = NULL;
2019                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
2020                         {
2021                         BIO_printf(bio_err,
2022                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
2023                                    srp_verifier_file, ret);
2024                                 goto end;
2025                         }
2026                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
2027                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
2028                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
2029                 }
2030         else
2031 #endif
2032         if (CAfile != NULL)
2033                 {
2034                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
2035 #ifndef OPENSSL_NO_TLSEXT
2036                 if (ctx2)
2037                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
2038 #endif
2039                 }
2040
2041         BIO_printf(bio_s_out,"ACCEPT\n");
2042         (void)BIO_flush(bio_s_out);
2043         if (rev)
2044                 do_server(port,socket_type,&accept_socket,rev_body, context, naccept);
2045         else if (www)
2046                 do_server(port,socket_type,&accept_socket,www_body, context, naccept);
2047         else
2048                 do_server(port,socket_type,&accept_socket,sv_body, context, naccept);
2049         print_stats(bio_s_out,ctx);
2050         ret=0;
2051 end:
2052         if (ctx != NULL) SSL_CTX_free(ctx);
2053         if (s_cert)
2054                 X509_free(s_cert);
2055         if (crls)
2056                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2057         if (s_dcert)
2058                 X509_free(s_dcert);
2059         if (s_key)
2060                 EVP_PKEY_free(s_key);
2061         if (s_dkey)
2062                 EVP_PKEY_free(s_dkey);
2063         if (s_chain)
2064                 sk_X509_pop_free(s_chain, X509_free);
2065         if (s_dchain)
2066                 sk_X509_pop_free(s_dchain, X509_free);
2067         if (pass)
2068                 OPENSSL_free(pass);
2069         if (dpass)
2070                 OPENSSL_free(dpass);
2071         if (vpm)
2072                 X509_VERIFY_PARAM_free(vpm);
2073         free_sessions();
2074 #ifndef OPENSSL_NO_TLSEXT
2075         if (tlscstatp.host)
2076                 OPENSSL_free(tlscstatp.host);
2077         if (tlscstatp.port)
2078                 OPENSSL_free(tlscstatp.port);
2079         if (tlscstatp.path)
2080                 OPENSSL_free(tlscstatp.path);
2081         if (ctx2 != NULL) SSL_CTX_free(ctx2);
2082         if (s_cert2)
2083                 X509_free(s_cert2);
2084         if (s_key2)
2085                 EVP_PKEY_free(s_key2);
2086         if (authz_in != NULL)
2087                 BIO_free(authz_in);
2088         if (serverinfo_in != NULL)
2089                 BIO_free(serverinfo_in);
2090         if (next_proto.data)
2091                 OPENSSL_free(next_proto.data);
2092         if (alpn_ctx.data)
2093                 OPENSSL_free(alpn_ctx.data);
2094 #endif
2095         ssl_excert_free(exc);
2096         if (ssl_args)
2097                 sk_OPENSSL_STRING_free(ssl_args);
2098         if (cctx)
2099                 SSL_CONF_CTX_free(cctx);
2100 #ifndef OPENSSL_NO_JPAKE
2101         if (jpake_secret && psk_key)
2102                 OPENSSL_free(psk_key);
2103 #endif
2104         if (bio_s_out != NULL)
2105                 {
2106                 BIO_free(bio_s_out);
2107                 bio_s_out=NULL;
2108                 }
2109         if (bio_s_msg != NULL)
2110                 {
2111                 BIO_free(bio_s_msg);
2112                 bio_s_msg = NULL;
2113                 }
2114         apps_shutdown();
2115         OPENSSL_EXIT(ret);
2116         }
2117
2118 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2119         {
2120         BIO_printf(bio,"%4ld items in the session cache\n",
2121                 SSL_CTX_sess_number(ssl_ctx));
2122         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
2123                 SSL_CTX_sess_connect(ssl_ctx));
2124         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
2125                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2126         BIO_printf(bio,"%4ld client connects that finished\n",
2127                 SSL_CTX_sess_connect_good(ssl_ctx));
2128         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
2129                 SSL_CTX_sess_accept(ssl_ctx));
2130         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
2131                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2132         BIO_printf(bio,"%4ld server accepts that finished\n",
2133                 SSL_CTX_sess_accept_good(ssl_ctx));
2134         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
2135         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
2136         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
2137         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
2138         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
2139                 SSL_CTX_sess_cache_full(ssl_ctx),
2140                 SSL_CTX_sess_get_cache_size(ssl_ctx));
2141         }
2142
2143 static int sv_body(char *hostname, int s, unsigned char *context)
2144         {
2145         char *buf=NULL;
2146         fd_set readfds;
2147         int ret=1,width;
2148         int k,i;
2149         unsigned long l;
2150         SSL *con=NULL;
2151         BIO *sbio;
2152 #ifndef OPENSSL_NO_KRB5
2153         KSSL_CTX *kctx;
2154 #endif
2155         struct timeval timeout;
2156 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2157         struct timeval tv;
2158 #else
2159         struct timeval *timeoutp;
2160 #endif
2161
2162         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
2163                 {
2164                 BIO_printf(bio_err,"out of memory\n");
2165                 goto err;
2166                 }
2167 #ifdef FIONBIO
2168         if (s_nbio)
2169                 {
2170                 unsigned long sl=1;
2171
2172                 if (!s_quiet)
2173                         BIO_printf(bio_err,"turning on non blocking io\n");
2174                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2175                         ERR_print_errors(bio_err);
2176                 }
2177 #endif
2178
2179         if (con == NULL) {
2180                 con=SSL_new(ctx);
2181 #ifndef OPENSSL_NO_TLSEXT
2182         if (s_tlsextdebug)
2183                 {
2184                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2185                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2186                 }
2187         if (s_tlsextstatus)
2188                 {
2189                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2190                 tlscstatp.err = bio_err;
2191                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2192                 }
2193 #endif
2194 #ifndef OPENSSL_NO_KRB5
2195                 if ((kctx = kssl_ctx_new()) != NULL)
2196                         {
2197                         SSL_set0_kssl_ctx(con, kctx);
2198                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2199                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2200                         }
2201 #endif  /* OPENSSL_NO_KRB5 */
2202                 if(context)
2203                       SSL_set_session_id_context(con, context,
2204                                                  strlen((char *)context));
2205         }
2206         SSL_clear(con);
2207 #if 0
2208 #ifdef TLSEXT_TYPE_opaque_prf_input
2209         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2210 #endif
2211 #endif
2212
2213         if (SSL_version(con) == DTLS1_VERSION)
2214                 {
2215
2216                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2217
2218                 if (enable_timeouts)
2219                         {
2220                         timeout.tv_sec = 0;
2221                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2222                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2223
2224                         timeout.tv_sec = 0;
2225                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2226                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2227                         }
2228
2229                 if (socket_mtu > 28)
2230                         {
2231                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2232                         SSL_set_mtu(con, socket_mtu - 28);
2233                         }
2234                 else
2235                         /* want to do MTU discovery */
2236                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2237
2238         /* turn on cookie exchange */
2239         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2240                 }
2241         else
2242                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2243
2244         if (s_nbio_test)
2245                 {
2246                 BIO *test;
2247
2248                 test=BIO_new(BIO_f_nbio_test());
2249                 sbio=BIO_push(test,sbio);
2250                 }
2251 #ifndef OPENSSL_NO_JPAKE
2252         if(jpake_secret)
2253                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2254 #endif
2255
2256         SSL_set_bio(con,sbio,sbio);
2257         SSL_set_accept_state(con);
2258         /* SSL_set_fd(con,s); */
2259
2260         if (s_debug)
2261                 {
2262                 SSL_set_debug(con, 1);
2263                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2264                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2265                 }
2266         if (s_msg)
2267                 {
2268 #ifndef OPENSSL_NO_SSL_TRACE
2269                 if (s_msg == 2)
2270                         SSL_set_msg_callback(con, SSL_trace);
2271                 else
2272 #endif
2273                         SSL_set_msg_callback(con, msg_cb);
2274                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2275                 }
2276 #ifndef OPENSSL_NO_TLSEXT
2277         if (s_tlsextdebug)
2278                 {
2279                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2280                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2281                 }
2282 #endif
2283
2284         width=s+1;
2285         for (;;)
2286                 {
2287                 int read_from_terminal;
2288                 int read_from_sslcon;
2289
2290                 read_from_terminal = 0;
2291                 read_from_sslcon = SSL_pending(con);
2292
2293                 if (!read_from_sslcon)
2294                         {
2295                         FD_ZERO(&readfds);
2296 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2297                         openssl_fdset(fileno(stdin),&readfds);
2298 #endif
2299                         openssl_fdset(s,&readfds);
2300                         /* Note: under VMS with SOCKETSHR the second parameter is
2301                          * currently of type (int *) whereas under other systems
2302                          * it is (void *) if you don't have a cast it will choke
2303                          * the compiler: if you do have a cast then you can either
2304                          * go for (int *) or (void *).
2305                          */
2306 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2307                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2308                          * on sockets. As a workaround we timeout the select every
2309                          * second and check for any keypress. In a proper Windows
2310                          * application we wouldn't do this because it is inefficient.
2311                          */
2312                         tv.tv_sec = 1;
2313                         tv.tv_usec = 0;
2314                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2315                         if((i < 0) || (!i && !_kbhit() ) )continue;
2316                         if(_kbhit())
2317                                 read_from_terminal = 1;
2318 #elif defined(OPENSSL_SYS_BEOS_R5)
2319                         /* Under BeOS-R5 the situation is similar to DOS */
2320                         tv.tv_sec = 1;
2321                         tv.tv_usec = 0;
2322                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2323                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2324                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2325                                 continue;
2326                         if (read(fileno(stdin), buf, 0) >= 0)
2327                                 read_from_terminal = 1;
2328                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2329 #else
2330                         if ((SSL_version(con) == DTLS1_VERSION) &&
2331                                 DTLSv1_get_timeout(con, &timeout))
2332                                 timeoutp = &timeout;
2333                         else
2334                                 timeoutp = NULL;
2335
2336                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2337
2338                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2339                                 {
2340                                 BIO_printf(bio_err,"TIMEOUT occured\n");
2341                                 }
2342
2343                         if (i <= 0) continue;
2344                         if (FD_ISSET(fileno(stdin),&readfds))
2345                                 read_from_terminal = 1;
2346 #endif
2347                         if (FD_ISSET(s,&readfds))
2348                                 read_from_sslcon = 1;
2349                         }
2350                 if (read_from_terminal)
2351                         {
2352                         if (s_crlf)
2353                                 {
2354                                 int j, lf_num;
2355
2356                                 i=raw_read_stdin(buf, bufsize/2);
2357                                 lf_num = 0;
2358                                 /* both loops are skipped when i <= 0 */
2359                                 for (j = 0; j < i; j++)
2360                                         if (buf[j] == '\n')
2361                                                 lf_num++;
2362                                 for (j = i-1; j >= 0; j--)
2363                                         {
2364                                         buf[j+lf_num] = buf[j];
2365                                         if (buf[j] == '\n')
2366                                                 {
2367                                                 lf_num--;
2368                                                 i++;
2369                                                 buf[j+lf_num] = '\r';
2370                                                 }
2371                                         }
2372                                 assert(lf_num == 0);
2373                                 }
2374                         else
2375                                 i=raw_read_stdin(buf,bufsize);
2376                         if (!s_quiet && !s_brief)
2377                                 {
2378                                 if ((i <= 0) || (buf[0] == 'Q'))
2379                                         {
2380                                         BIO_printf(bio_s_out,"DONE\n");
2381                                         SHUTDOWN(s);
2382                                         close_accept_socket();
2383                                         ret= -11;
2384                                         goto err;
2385                                         }
2386                                 if ((i <= 0) || (buf[0] == 'q'))
2387                                         {
2388                                         BIO_printf(bio_s_out,"DONE\n");
2389                                         if (SSL_version(con) != DTLS1_VERSION)
2390                         SHUTDOWN(s);
2391         /*                              close_accept_socket();
2392                                         ret= -11;*/
2393                                         goto err;
2394                                         }
2395
2396 #ifndef OPENSSL_NO_HEARTBEATS
2397                                 if ((buf[0] == 'B') &&
2398                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2399                                         {
2400                                         BIO_printf(bio_err,"HEARTBEATING\n");
2401                                         SSL_heartbeat(con);
2402                                         i=0;
2403                                         continue;
2404                                         }
2405 #endif
2406                                 if ((buf[0] == 'r') &&
2407                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2408                                         {
2409                                         SSL_renegotiate(con);
2410                                         i=SSL_do_handshake(con);
2411                                         printf("SSL_do_handshake -> %d\n",i);
2412                                         i=0; /*13; */
2413                                         continue;
2414                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2415                                         }
2416                                 if ((buf[0] == 'R') &&
2417                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2418                                         {
2419                                         SSL_set_verify(con,
2420                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2421                                         SSL_renegotiate(con);
2422                                         i=SSL_do_handshake(con);
2423                                         printf("SSL_do_handshake -> %d\n",i);
2424                                         i=0; /* 13; */
2425                                         continue;
2426                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2427                                         }
2428                                 if (buf[0] == 'P')
2429                                         {
2430                                         static const char *str="Lets print some clear text\n";
2431                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2432                                         }
2433                                 if (buf[0] == 'S')
2434                                         {
2435                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2436                                         }
2437                                 }
2438 #ifdef CHARSET_EBCDIC
2439                         ebcdic2ascii(buf,buf,i);
2440 #endif
2441                         l=k=0;
2442                         for (;;)
2443                                 {
2444                                 /* should do a select for the write */
2445 #ifdef RENEG
2446 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2447 #endif
2448                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2449 #ifndef OPENSSL_NO_SRP
2450                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2451                                         {
2452                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2453                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2454                                         if (srp_callback_parm.user)
2455                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2456                                         else
2457                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2458                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2459                                         }
2460 #endif
2461                                 switch (SSL_get_error(con,k))
2462                                         {
2463                                 case SSL_ERROR_NONE:
2464                                         break;
2465                                 case SSL_ERROR_WANT_WRITE:
2466                                 case SSL_ERROR_WANT_READ:
2467                                 case SSL_ERROR_WANT_X509_LOOKUP:
2468                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2469                                         break;
2470                                 case SSL_ERROR_SYSCALL:
2471                                 case SSL_ERROR_SSL:
2472                                         BIO_printf(bio_s_out,"ERROR\n");
2473                                         ERR_print_errors(bio_err);
2474                                         ret=1;
2475                                         goto err;
2476                                         /* break; */
2477                                 case SSL_ERROR_ZERO_RETURN:
2478                                         BIO_printf(bio_s_out,"DONE\n");
2479                                         ret=1;
2480                                         goto err;
2481                                         }
2482                                 l+=k;
2483                                 i-=k;
2484                                 if (i <= 0) break;
2485                                 }
2486                         }
2487                 if (read_from_sslcon)
2488                         {
2489                         if (!SSL_is_init_finished(con))
2490                                 {
2491                                 i=init_ssl_connection(con);
2492
2493                                 if (i < 0)
2494                                         {
2495                                         ret=0;
2496                                         goto err;
2497                                         }
2498                                 else if (i == 0)
2499                                         {
2500                                         ret=1;
2501                                         goto err;
2502                                         }
2503                                 }
2504                         else
2505                                 {
2506 again:
2507                                 i=SSL_read(con,(char *)buf,bufsize);
2508 #ifndef OPENSSL_NO_SRP
2509                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2510                                         {
2511                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2512                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2513                                         if (srp_callback_parm.user)
2514                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2515                                         else
2516                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2517                                         i=SSL_read(con,(char *)buf,bufsize);
2518                                         }
2519 #endif
2520                                 switch (SSL_get_error(con,i))
2521                                         {
2522                                 case SSL_ERROR_NONE:
2523 #ifdef CHARSET_EBCDIC
2524                                         ascii2ebcdic(buf,buf,i);
2525 #endif
2526                                         raw_write_stdout(buf,
2527                                                 (unsigned int)i);
2528                                         if (SSL_pending(con)) goto again;
2529                                         break;
2530                                 case SSL_ERROR_WANT_WRITE:
2531                                 case SSL_ERROR_WANT_READ:
2532                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2533                                         break;
2534                                 case SSL_ERROR_SYSCALL:
2535                                 case SSL_ERROR_SSL:
2536                                         BIO_printf(bio_s_out,"ERROR\n");
2537                                         ERR_print_errors(bio_err);
2538                                         ret=1;
2539                                         goto err;
2540                                 case SSL_ERROR_ZERO_RETURN:
2541                                         BIO_printf(bio_s_out,"DONE\n");
2542                                         ret=1;
2543                                         goto err;
2544                                         }
2545                                 }
2546                         }
2547                 }
2548 err:
2549         if (con != NULL)
2550                 {
2551                 BIO_printf(bio_s_out,"shutting down SSL\n");
2552 #if 1
2553                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2554 #else
2555                 SSL_shutdown(con);
2556 #endif
2557                 SSL_free(con);
2558                 }
2559         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2560         if (buf != NULL)
2561                 {
2562                 OPENSSL_cleanse(buf,bufsize);
2563                 OPENSSL_free(buf);
2564                 }
2565         if (ret >= 0)
2566                 BIO_printf(bio_s_out,"ACCEPT\n");
2567         return(ret);
2568         }
2569
2570 static void close_accept_socket(void)
2571         {
2572         BIO_printf(bio_err,"shutdown accept socket\n");
2573         if (accept_socket >= 0)
2574                 {
2575                 SHUTDOWN2(accept_socket);
2576                 }
2577         }
2578
2579 static int init_ssl_connection(SSL *con)
2580         {
2581         int i;
2582         const char *str;
2583         X509 *peer;
2584         long verify_error;
2585         MS_STATIC char buf[BUFSIZ];
2586 #ifndef OPENSSL_NO_KRB5
2587         char *client_princ;
2588 #endif
2589 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2590         const unsigned char *next_proto_neg;
2591         unsigned next_proto_neg_len;
2592 #endif
2593         unsigned char *exportedkeymat;
2594
2595
2596         i=SSL_accept(con);
2597 #ifndef OPENSSL_NO_SRP
2598         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2599                 {
2600                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2601                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2602                         if (srp_callback_parm.user)
2603                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2604                         else
2605                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2606                         i=SSL_accept(con);
2607                 }
2608 #endif
2609         if (i <= 0)
2610                 {
2611                 if (BIO_sock_should_retry(i))
2612                         {
2613                         BIO_printf(bio_s_out,"DELAY\n");
2614                         return(1);
2615                         }
2616
2617                 BIO_printf(bio_err,"ERROR\n");
2618                 verify_error=SSL_get_verify_result(con);
2619                 if (verify_error != X509_V_OK)
2620                         {
2621                         BIO_printf(bio_err,"verify error:%s\n",
2622                                 X509_verify_cert_error_string(verify_error));
2623                         }
2624                 /* Always print any error messages */
2625                 ERR_print_errors(bio_err);
2626                 return(0);
2627                 }
2628
2629         if (s_brief)
2630                 print_ssl_summary(bio_err, con);
2631
2632         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2633
2634         peer=SSL_get_peer_certificate(con);
2635         if (peer != NULL)
2636                 {
2637                 BIO_printf(bio_s_out,"Client certificate\n");
2638                 PEM_write_bio_X509(bio_s_out,peer);
2639                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2640                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2641                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2642                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2643                 X509_free(peer);
2644                 }
2645
2646         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2647                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2648         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2649         ssl_print_sigalgs(bio_s_out, con);
2650 #ifndef OPENSSL_NO_EC
2651         ssl_print_point_formats(bio_s_out, con);
2652         ssl_print_curves(bio_s_out, con, 0);
2653 #endif
2654         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2655
2656 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2657         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2658         if (next_proto_neg)
2659                 {
2660                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2661                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2662                 BIO_printf(bio_s_out, "\n");
2663                 }
2664 #endif
2665         {
2666         SRTP_PROTECTION_PROFILE *srtp_profile
2667           = SSL_get_selected_srtp_profile(con);
2668
2669         if(srtp_profile)
2670                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2671                            srtp_profile->name);
2672         }
2673         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2674         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2675                 TLS1_FLAGS_TLS_PADDING_BUG)
2676                 BIO_printf(bio_s_out,
2677                            "Peer has incorrect TLSv1 block padding\n");
2678 #ifndef OPENSSL_NO_KRB5
2679         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2680         if (client_princ != NULL)
2681                 {
2682                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2683                                                                 client_princ);
2684                 }
2685 #endif /* OPENSSL_NO_KRB5 */
2686         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2687                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2688         if (keymatexportlabel != NULL)
2689                 {
2690                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2691                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2692                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2693                            keymatexportlen);
2694                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2695                 if (exportedkeymat != NULL)
2696                         {
2697                         if (!SSL_export_keying_material(con, exportedkeymat,
2698                                                         keymatexportlen,
2699                                                         keymatexportlabel,
2700                                                         strlen(keymatexportlabel),
2701                                                         NULL, 0, 0))
2702                                 {
2703                                 BIO_printf(bio_s_out, "    Error\n");
2704                                 }
2705                         else
2706                                 {
2707                                 BIO_printf(bio_s_out, "    Keying material: ");
2708                                 for (i=0; i<keymatexportlen; i++)
2709                                         BIO_printf(bio_s_out, "%02X",
2710                                                    exportedkeymat[i]);
2711                                 BIO_printf(bio_s_out, "\n");
2712                                 }
2713                         OPENSSL_free(exportedkeymat);
2714                         }
2715                 }
2716
2717         return(1);
2718         }
2719
2720 #ifndef OPENSSL_NO_DH
2721 static DH *load_dh_param(const char *dhfile)
2722         {
2723         DH *ret=NULL;
2724         BIO *bio;
2725
2726         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2727                 goto err;
2728         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2729 err:
2730         if (bio != NULL) BIO_free(bio);
2731         return(ret);
2732         }
2733 #endif
2734 #ifndef OPENSSL_NO_KRB5
2735         char *client_princ;
2736 #endif
2737
2738 #if 0
2739 static int load_CA(SSL_CTX *ctx, char *file)
2740         {
2741         FILE *in;
2742         X509 *x=NULL;
2743
2744         if ((in=fopen(file,"r")) == NULL)
2745                 return(0);
2746
2747         for (;;)
2748                 {
2749                 if (PEM_read_X509(in,&x,NULL) == NULL)
2750                         break;
2751                 SSL_CTX_add_client_CA(ctx,x);
2752                 }
2753         if (x != NULL) X509_free(x);
2754         fclose(in);
2755         return(1);
2756         }
2757 #endif
2758
2759 static int www_body(char *hostname, int s, unsigned char *context)
2760         {
2761         char *buf=NULL;
2762         int ret=1;
2763         int i,j,k,dot;
2764         SSL *con;
2765         const SSL_CIPHER *c;
2766         BIO *io,*ssl_bio,*sbio;
2767 #ifndef OPENSSL_NO_KRB5
2768         KSSL_CTX *kctx;
2769 #endif
2770
2771         buf=OPENSSL_malloc(bufsize);
2772         if (buf == NULL) return(0);
2773         io=BIO_new(BIO_f_buffer());
2774         ssl_bio=BIO_new(BIO_f_ssl());
2775         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2776
2777 #ifdef FIONBIO
2778         if (s_nbio)
2779                 {
2780                 unsigned long sl=1;
2781
2782                 if (!s_quiet)
2783                         BIO_printf(bio_err,"turning on non blocking io\n");
2784                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2785                         ERR_print_errors(bio_err);
2786                 }
2787 #endif
2788
2789         /* lets make the output buffer a reasonable size */
2790         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2791
2792         if ((con=SSL_new(ctx)) == NULL) goto err;
2793 #ifndef OPENSSL_NO_TLSEXT
2794                 if (s_tlsextdebug)
2795                         {
2796                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2797                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2798                         }
2799 #endif
2800 #ifndef OPENSSL_NO_KRB5
2801         if ((kctx = kssl_ctx_new()) != NULL)
2802                 {
2803                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2804                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2805                 }
2806 #endif  /* OPENSSL_NO_KRB5 */
2807         if(context) SSL_set_session_id_context(con, context,
2808                                                strlen((char *)context));
2809
2810         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2811         if (s_nbio_test)
2812                 {
2813                 BIO *test;
2814
2815                 test=BIO_new(BIO_f_nbio_test());
2816                 sbio=BIO_push(test,sbio);
2817                 }
2818         SSL_set_bio(con,sbio,sbio);
2819         SSL_set_accept_state(con);
2820
2821         /* SSL_set_fd(con,s); */
2822         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2823         BIO_push(io,ssl_bio);
2824 #ifdef CHARSET_EBCDIC
2825         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2826 #endif
2827
2828         if (s_debug)
2829                 {
2830                 SSL_set_debug(con, 1);
2831                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2832                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2833                 }
2834         if (s_msg)
2835                 {
2836 #ifndef OPENSSL_NO_SSL_TRACE
2837                 if (s_msg == 2)
2838                         SSL_set_msg_callback(con, SSL_trace);
2839                 else
2840 #endif
2841                         SSL_set_msg_callback(con, msg_cb);
2842                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2843                 }
2844
2845         for (;;)
2846                 {
2847                 if (hack)
2848                         {
2849                         i=SSL_accept(con);
2850 #ifndef OPENSSL_NO_SRP
2851                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2852                 {
2853                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2854                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2855                         if (srp_callback_parm.user)
2856                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2857                         else
2858                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2859                         i=SSL_accept(con);
2860                 }
2861 #endif
2862                         switch (SSL_get_error(con,i))
2863                                 {
2864                         case SSL_ERROR_NONE:
2865                                 break;
2866                         case SSL_ERROR_WANT_WRITE:
2867                         case SSL_ERROR_WANT_READ:
2868                         case SSL_ERROR_WANT_X509_LOOKUP:
2869                                 continue;
2870                         case SSL_ERROR_SYSCALL:
2871                         case SSL_ERROR_SSL:
2872                         case SSL_ERROR_ZERO_RETURN:
2873                                 ret=1;
2874                                 goto err;
2875                                 /* break; */
2876                                 }
2877
2878                         SSL_renegotiate(con);
2879                         SSL_write(con,NULL,0);
2880                         }
2881
2882                 i=BIO_gets(io,buf,bufsize-1);
2883                 if (i < 0) /* error */
2884                         {
2885                         if (!BIO_should_retry(io))
2886                                 {
2887                                 if (!s_quiet)
2888                                         ERR_print_errors(bio_err);
2889                                 goto err;
2890                                 }
2891                         else
2892                                 {
2893                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2894 #if defined(OPENSSL_SYS_NETWARE)
2895             delay(1000);
2896 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2897                                 sleep(1);
2898 #endif
2899                                 continue;
2900                                 }
2901                         }
2902                 else if (i == 0) /* end of input */
2903                         {
2904                         ret=1;
2905                         goto end;
2906                         }
2907
2908                 /* else we have data */
2909                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2910                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2911                         {
2912                         char *p;
2913                         X509 *peer;
2914                         STACK_OF(SSL_CIPHER) *sk;
2915                         static const char *space="                          ";
2916
2917                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2918                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2919                         BIO_puts(io,"<pre>\n");
2920 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2921                         BIO_puts(io,"\n");
2922                         for (i=0; i<local_argc; i++)
2923                                 {
2924                                 BIO_puts(io,local_argv[i]);
2925                                 BIO_write(io," ",1);
2926                                 }
2927                         BIO_puts(io,"\n");
2928
2929                         BIO_printf(io,
2930                                 "Secure Renegotiation IS%s supported\n",
2931                                 SSL_get_secure_renegotiation_support(con) ?
2932                                                         "" : " NOT");
2933
2934                         /* The following is evil and should not really
2935                          * be done */
2936                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2937                         sk=SSL_get_ciphers(con);
2938                         j=sk_SSL_CIPHER_num(sk);
2939                         for (i=0; i<j; i++)
2940                                 {
2941                                 c=sk_SSL_CIPHER_value(sk,i);
2942                                 BIO_printf(io,"%-11s:%-25s",
2943                                         SSL_CIPHER_get_version(c),
2944                                         SSL_CIPHER_get_name(c));
2945                                 if ((((i+1)%2) == 0) && (i+1 != j))
2946                                         BIO_puts(io,"\n");
2947                                 }
2948                         BIO_puts(io,"\n");
2949                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2950                         if (p != NULL)
2951                                 {
2952                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2953                                 j=i=0;
2954                                 while (*p)
2955                                         {
2956                                         if (*p == ':')
2957                                                 {
2958                                                 BIO_write(io,space,26-j);
2959                                                 i++;
2960                                                 j=0;
2961                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2962                                                 }
2963                                         else
2964                                                 {
2965                                                 BIO_write(io,p,1);
2966                                                 j++;
2967                                                 }
2968                                         p++;
2969                                         }
2970                                 BIO_puts(io,"\n");
2971                                 }
2972                         ssl_print_sigalgs(io, con);
2973 #ifndef OPENSSL_NO_EC
2974                         ssl_print_curves(io, con, 0);
2975 #endif
2976                         BIO_printf(io,(SSL_cache_hit(con)
2977                                 ?"---\nReused, "
2978                                 :"---\nNew, "));
2979                         c=SSL_get_current_cipher(con);
2980                         BIO_printf(io,"%s, Cipher is %s\n",
2981                                 SSL_CIPHER_get_version(c),
2982                                 SSL_CIPHER_get_name(c));
2983                         SSL_SESSION_print(io,SSL_get_session(con));
2984                         BIO_printf(io,"---\n");
2985                         print_stats(io,SSL_get_SSL_CTX(con));
2986                         BIO_printf(io,"---\n");
2987                         peer=SSL_get_peer_certificate(con);
2988                         if (peer != NULL)
2989                                 {
2990                                 BIO_printf(io,"Client certificate\n");
2991                                 X509_print(io,peer);
2992                                 PEM_write_bio_X509(io,peer);
2993                                 }
2994                         else
2995                                 BIO_puts(io,"no client certificate available\n");
2996                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2997                         break;
2998                         }
2999                 else if ((www == 2 || www == 3)
3000                          && (strncmp("GET /",buf,5) == 0))
3001                         {
3002                         BIO *file;
3003                         char *p,*e;
3004                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3005
3006                         /* skip the '/' */
3007                         p= &(buf[5]);
3008
3009                         dot = 1;
3010                         for (e=p; *e != '\0'; e++)
3011                                 {
3012                                 if (e[0] == ' ')
3013                                         break;
3014
3015                                 switch (dot)
3016                                         {
3017                                 case 1:
3018                                         dot = (e[0] == '.') ? 2 : 0;
3019                                         break;
3020                                 case 2:
3021                                         dot = (e[0] == '.') ? 3 : 0;
3022                                         break;
3023                                 case 3:
3024                                         dot = (e[0] == '/') ? -1 : 0;
3025                                         break;
3026                                         }
3027                                 if (dot == 0)
3028                                         dot = (e[0] == '/') ? 1 : 0;
3029                                 }
3030                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
3031
3032                         if (*e == '\0')
3033                                 {
3034                                 BIO_puts(io,text);
3035                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
3036                                 break;
3037                                 }
3038                         *e='\0';
3039
3040                         if (dot)
3041                                 {
3042                                 BIO_puts(io,text);
3043                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
3044                                 break;
3045                                 }
3046
3047                         if (*p == '/')
3048                                 {
3049                                 BIO_puts(io,text);
3050                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
3051                                 break;
3052                                 }
3053
3054 #if 0
3055                         /* append if a directory lookup */
3056                         if (e[-1] == '/')
3057                                 strcat(p,"index.html");
3058 #endif
3059
3060                         /* if a directory, do the index thang */
3061                         if (app_isdir(p)>0)
3062                                 {
3063 #if 0 /* must check buffer size */
3064                                 strcat(p,"/index.html");
3065 #else
3066                                 BIO_puts(io,text);
3067                                 BIO_printf(io,"'%s' is a directory\r\n",p);
3068                                 break;
3069 #endif
3070                                 }
3071
3072                         if ((file=BIO_new_file(p,"r")) == NULL)
3073                                 {
3074                                 BIO_puts(io,text);
3075                                 BIO_printf(io,"Error opening '%s'\r\n",p);
3076                                 ERR_print_errors(io);
3077                                 break;
3078                                 }
3079
3080                         if (!s_quiet)
3081                                 BIO_printf(bio_err,"FILE:%s\n",p);
3082
3083                         if (www == 2)
3084                                 {
3085                                 i=strlen(p);
3086                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
3087                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
3088                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
3089                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3090                                 else
3091                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3092                                 }
3093                         /* send the file */
3094                         for (;;)
3095                                 {
3096                                 i=BIO_read(file,buf,bufsize);
3097                                 if (i <= 0) break;
3098
3099 #ifdef RENEG
3100                                 total_bytes+=i;
3101                                 fprintf(stderr,"%d\n",i);
3102                                 if (total_bytes > 3*1024)
3103                                         {
3104                                         total_bytes=0;
3105                                         fprintf(stderr,"RENEGOTIATE\n");
3106                                         SSL_renegotiate(con);
3107                                         }
3108 #endif
3109
3110                                 for (j=0; j<i; )
3111                                         {
3112 #ifdef RENEG
3113 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
3114 #endif
3115                                         k=BIO_write(io,&(buf[j]),i-j);
3116                                         if (k <= 0)
3117                                                 {
3118                                                 if (!BIO_should_retry(io))
3119                                                         goto write_error;
3120                                                 else
3121                                                         {
3122                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
3123                                                         }
3124                                                 }
3125                                         else
3126                                                 {
3127                                                 j+=k;
3128                                                 }
3129                                         }
3130                                 }
3131 write_error:
3132                         BIO_free(file);
3133                         break;
3134                         }
3135                 }
3136
3137         for (;;)
3138                 {
3139                 i=(int)BIO_flush(io);
3140                 if (i <= 0)
3141                         {
3142                         if (!BIO_should_retry(io))
3143                                 break;
3144                         }
3145                 else
3146                         break;
3147                 }
3148 end:
3149 #if 1
3150         /* make sure we re-use sessions */
3151         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3152 #else
3153         /* This kills performance */
3154 /*      SSL_shutdown(con); A shutdown gets sent in the
3155  *      BIO_free_all(io) procession */
3156 #endif
3157
3158 err:
3159
3160         if (ret >= 0)
3161                 BIO_printf(bio_s_out,"ACCEPT\n");
3162
3163         if (buf != NULL) OPENSSL_free(buf);
3164         if (io != NULL) BIO_free_all(io);
3165 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3166         return(ret);
3167         }
3168
3169 static int rev_body(char *hostname, int s, unsigned char *context)
3170         {
3171         char *buf=NULL;
3172         int i;
3173         int ret=1;
3174         SSL *con;
3175         BIO *io,*ssl_bio,*sbio;
3176 #ifndef OPENSSL_NO_KRB5
3177         KSSL_CTX *kctx;
3178 #endif
3179
3180         buf=OPENSSL_malloc(bufsize);
3181         if (buf == NULL) return(0);
3182         io=BIO_new(BIO_f_buffer());
3183         ssl_bio=BIO_new(BIO_f_ssl());
3184         if ((io == NULL) || (ssl_bio == NULL)) goto err;
3185
3186         /* lets make the output buffer a reasonable size */
3187         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
3188
3189         if ((con=SSL_new(ctx)) == NULL) goto err;
3190 #ifndef OPENSSL_NO_TLSEXT
3191         if (s_tlsextdebug)
3192                 {
3193                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3194                 SSL_set_tlsext_debug_arg(con, bio_s_out);
3195                 }
3196 #endif
3197 #ifndef OPENSSL_NO_KRB5
3198         if ((kctx = kssl_ctx_new()) != NULL)
3199                 {
3200                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
3201                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
3202                 }
3203 #endif  /* OPENSSL_NO_KRB5 */
3204         if(context) SSL_set_session_id_context(con, context,
3205                                                strlen((char *)context));
3206
3207         sbio=BIO_new_socket(s,BIO_NOCLOSE);
3208         SSL_set_bio(con,sbio,sbio);
3209         SSL_set_accept_state(con);
3210
3211         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
3212         BIO_push(io,ssl_bio);
3213 #ifdef CHARSET_EBCDIC
3214         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
3215 #endif
3216
3217         if (s_debug)
3218                 {
3219                 SSL_set_debug(con, 1);
3220                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
3221                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
3222                 }
3223         if (s_msg)
3224                 {
3225 #ifndef OPENSSL_NO_SSL_TRACE
3226                 if (s_msg == 2)
3227                         SSL_set_msg_callback(con, SSL_trace);
3228                 else
3229 #endif
3230                         SSL_set_msg_callback(con, msg_cb);
3231                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3232                 }
3233
3234         for (;;)
3235                 {
3236                 i = BIO_do_handshake(io);
3237                 if (i > 0)
3238                         break;
3239                 if (!BIO_should_retry(io))
3240                         {
3241                         BIO_puts(bio_err, "CONNECTION FAILURE\n");
3242                         ERR_print_errors(bio_err);
3243                         goto end;
3244                         }
3245                 }
3246         BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3247         print_ssl_summary(bio_err, con);
3248
3249         for (;;)
3250                 {
3251                 i=BIO_gets(io,buf,bufsize-1);
3252                 if (i < 0) /* error */
3253                         {
3254                         if (!BIO_should_retry(io))
3255                                 {
3256                                 if (!s_quiet)
3257                                         ERR_print_errors(bio_err);
3258                                 goto err;
3259                                 }
3260                         else
3261                                 {
3262                                 BIO_printf(bio_s_out,"read R BLOCK\n");
3263 #if defined(OPENSSL_SYS_NETWARE)
3264             delay(1000);
3265 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
3266                                 sleep(1);
3267 #endif
3268                                 continue;
3269                                 }
3270                         }
3271                 else if (i == 0) /* end of input */
3272                         {
3273                         ret=1;
3274                         BIO_printf(bio_err, "CONNECTION CLOSED\n");
3275                         goto end;
3276                         }
3277                 else
3278                         {
3279                         char *p = buf + i - 1;
3280                         while(i && (*p == '\n' || *p == '\r'))
3281                                 {
3282                                 p--;
3283                                 i--;
3284                                 }
3285                         if (!s_ign_eof && i == 5 && !strncmp(buf, "CLOSE", 5))
3286                                 {
3287                                 ret = 1;
3288                                 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3289                                 goto end;
3290                                 }
3291                         BUF_reverse((unsigned char *)buf, NULL, i);
3292                         buf[i] = '\n';
3293                         BIO_write(io, buf, i + 1);
3294                         for (;;)
3295                                 {
3296                                 i = BIO_flush(io);
3297                                 if (i > 0)
3298                                         break;
3299                                 if (!BIO_should_retry(io))
3300                                         goto end;
3301                                 }
3302                         }
3303                 }
3304 end:
3305         /* make sure we re-use sessions */
3306         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3307
3308 err:
3309
3310         if (buf != NULL) OPENSSL_free(buf);
3311         if (io != NULL) BIO_free_all(io);
3312         return(ret);
3313         }
3314
3315 #ifndef OPENSSL_NO_RSA
3316 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3317         {
3318         BIGNUM *bn = NULL;
3319         static RSA *rsa_tmp=NULL;
3320
3321         if (!rsa_tmp && ((bn = BN_new()) == NULL))
3322                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
3323         if (!rsa_tmp && bn)
3324                 {
3325                 if (!s_quiet)
3326                         {
3327                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
3328                         (void)BIO_flush(bio_err);
3329                         }
3330                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3331                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
3332                         {
3333                         if(rsa_tmp) RSA_free(rsa_tmp);
3334                         rsa_tmp = NULL;
3335                         }
3336                 if (!s_quiet)
3337                         {
3338                         BIO_printf(bio_err,"\n");
3339                         (void)BIO_flush(bio_err);
3340                         }
3341                 BN_free(bn);
3342                 }
3343         return(rsa_tmp);
3344         }
3345 #endif
3346
3347 #define MAX_SESSION_ID_ATTEMPTS 10
3348 static int generate_session_id(const SSL *ssl, unsigned char *id,
3349                                 unsigned int *id_len)
3350         {
3351         unsigned int count = 0;
3352         do      {
3353                 RAND_pseudo_bytes(id, *id_len);
3354                 /* Prefix the session_id with the required prefix. NB: If our
3355                  * prefix is too long, clip it - but there will be worse effects
3356                  * anyway, eg. the server could only possibly create 1 session
3357                  * ID (ie. the prefix!) so all future session negotiations will
3358                  * fail due to conflicts. */
3359                 memcpy(id, session_id_prefix,
3360                         (strlen(session_id_prefix) < *id_len) ?
3361                         strlen(session_id_prefix) : *id_len);
3362                 }
3363         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3364                 (++count < MAX_SESSION_ID_ATTEMPTS));
3365         if(count >= MAX_SESSION_ID_ATTEMPTS)
3366                 return 0;
3367         return 1;
3368         }
3369
3370 /* By default s_server uses an in-memory cache which caches SSL_SESSION
3371  * structures without any serialisation. This hides some bugs which only
3372  * become apparent in deployed servers. By implementing a basic external
3373  * session cache some issues can be debugged using s_server.
3374  */
3375
3376 typedef struct simple_ssl_session_st
3377         {
3378         unsigned char *id;
3379         unsigned int idlen;
3380         unsigned char *der;
3381         int derlen;
3382         struct simple_ssl_session_st *next;
3383         } simple_ssl_session;
3384
3385 static simple_ssl_session *first = NULL;
3386
3387 static int add_session(SSL *ssl, SSL_SESSION *session)
3388         {
3389         simple_ssl_session *sess;
3390         unsigned char *p;
3391
3392         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3393
3394         SSL_SESSION_get_id(session, &sess->idlen);
3395         sess->derlen = i2d_SSL_SESSION(session, NULL);
3396
3397         sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3398
3399         sess->der = OPENSSL_malloc(sess->derlen);
3400         p = sess->der;
3401         i2d_SSL_SESSION(session, &p);
3402
3403         sess->next = first;
3404         first = sess;
3405         BIO_printf(bio_err, "New session added to external cache\n");
3406         return 0;
3407         }
3408
3409 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3410                                         int *do_copy)
3411         {
3412         simple_ssl_session *sess;
3413         *do_copy = 0;
3414         for (sess = first; sess; sess = sess->next)
3415                 {
3416                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3417                         {
3418                         const unsigned char *p = sess->der;
3419                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3420                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3421                         }
3422                 }
3423         BIO_printf(bio_err, "Lookup session: cache miss\n");
3424         return NULL;
3425         }
3426
3427 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3428         {
3429         simple_ssl_session *sess, *prev = NULL;
3430         const unsigned char *id;
3431         unsigned int idlen;
3432         id = SSL_SESSION_get_id(session, &idlen);
3433         for (sess = first; sess; sess = sess->next)
3434                 {
3435                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
3436                         {
3437                         if(prev)
3438                                 prev->next = sess->next;
3439                         else
3440                                 first = sess->next;
3441                         OPENSSL_free(sess->id);
3442                         OPENSSL_free(sess->der);
3443                         OPENSSL_free(sess);
3444                         return;
3445                         }
3446                 prev = sess;
3447                 }
3448         }
3449
3450 static void init_session_cache_ctx(SSL_CTX *sctx)
3451         {
3452         SSL_CTX_set_session_cache_mode(sctx,
3453                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
3454         SSL_CTX_sess_set_new_cb(sctx, add_session);
3455         SSL_CTX_sess_set_get_cb(sctx, get_session);
3456         SSL_CTX_sess_set_remove_cb(sctx, del_session);
3457         }
3458
3459 static void free_sessions(void)
3460         {
3461         simple_ssl_session *sess, *tsess;
3462         for (sess = first; sess;)
3463                 {
3464                 OPENSSL_free(sess->id);
3465                 OPENSSL_free(sess->der);
3466                 tsess = sess;
3467                 sess = sess->next;
3468                 OPENSSL_free(tsess);
3469                 }
3470         first = NULL;
3471         }