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 not_resumable_sess_cb(SSL *s, int is_forward_secure);
 208 static int sv_body(char *hostname, int s, int stype, unsigned char *context);
 209 static int www_body(char *hostname, int s, int stype, unsigned char *context);
 210 static int rev_body(char *hostname, int s, int stype, unsigned char *context);
 211 static void close_accept_socket(void );
 212 static void sv_usage(void);
 213 static int init_ssl_connection(SSL *s);
 214 static void print_stats(BIO *bp,SSL_CTX *ctx);
 215 static int generate_session_id(const SSL *ssl, unsigned char *id,
 216                                 unsigned int *id_len);
 217 static void init_session_cache_ctx(SSL_CTX *sctx);
 218 static void free_sessions(void);
 219 #ifndef OPENSSL_NO_DH
 220 static DH *load_dh_param(const char *dhfile);
 221 #endif
 222
 223 #ifdef MONOLITH
 224 static void s_server_init(void);
 225 #endif
 226
 227 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 228
 229 #undef BUFSIZZ
 230 #define BUFSIZZ 16*1024
 231 static int bufsize=BUFSIZZ;
 232 static int accept_socket= -1;
 233
 234 #define TEST_CERT       "server.pem"
 235 #ifndef OPENSSL_NO_TLSEXT
 236 #define TEST_CERT2      "server2.pem"
 237 #endif
 238 #undef PROG
 239 #define PROG            s_server_main
 240
 241 extern int verify_depth, verify_return_error, verify_quiet;
 242
 243 static int s_server_verify=SSL_VERIFY_NONE;
 244 static int s_server_session_id_context = 1; /* anything will do */
 245 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL, *s_chain_file=NULL;
 246 #ifndef OPENSSL_NO_TLSEXT
 247 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
 248 #endif
 249 static char *s_dcert_file=NULL,*s_dkey_file=NULL, *s_dchain_file=NULL;
 250 #ifdef FIONBIO
 251 static int s_nbio=0;
 252 #endif
 253 static int s_nbio_test=0;
 254 int s_crlf=0;
 255 static SSL_CTX *ctx=NULL;
 256 #ifndef OPENSSL_NO_TLSEXT
 257 static SSL_CTX *ctx2=NULL;
 258 #endif
 259 static int www=0;
 260
 261 static BIO *bio_s_out=NULL;
 262 static BIO *bio_s_msg = NULL;
 263 static int s_debug=0;
 264 #ifndef OPENSSL_NO_TLSEXT
 265 static int s_tlsextdebug=0;
 266 static int s_tlsextstatus=0;
 267 static int cert_status_cb(SSL *s, void *arg);
 268 #endif
 269 static int no_resume_ephemeral = 0;
 270 static int s_msg=0;
 271 static int s_quiet=0;
 272 static int s_ign_eof=0;
 273 static int s_brief=0;
 274
 275 static char *keymatexportlabel=NULL;
 276 static int keymatexportlen=20;
 277
 278 static int hack=0;
 279 #ifndef OPENSSL_NO_ENGINE
 280 static char *engine_id=NULL;
 281 #endif
 282 static const char *session_id_prefix=NULL;
 283
 284 static int enable_timeouts = 0;
 285 static long socket_mtu;
 286 #ifndef OPENSSL_NO_DTLS1
 287 static int cert_chain = 0;
 288 #endif
 289
 290 #ifndef OPENSSL_NO_TLSEXT
 291 static BIO *serverinfo_in = NULL;
 292 static const char *s_serverinfo_file = NULL;
 293
 294 #endif
 295
 296 #ifndef OPENSSL_NO_PSK
 297 static char *psk_identity="Client_identity";
 298 char *psk_key=NULL; /* by default PSK is not used */
 299
 300 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
 301         unsigned char *psk, unsigned int max_psk_len)
 302         {
 303         unsigned int psk_len = 0;
 304         int ret;
 305         BIGNUM *bn = NULL;
 306
 307         if (s_debug)
 308                 BIO_printf(bio_s_out,"psk_server_cb\n");
 309         if (!identity)
 310                 {
 311                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
 312                 goto out_err;
 313                 }
 314         if (s_debug)
 315                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
 316                         identity ? (int)strlen(identity) : 0, identity);
 317
 318         /* here we could lookup the given identity e.g. from a database */
 319         if (strcmp(identity, psk_identity) != 0)
 320                 {
 321                 BIO_printf(bio_s_out, "PSK error: client identity not found"
 322                            " (got '%s' expected '%s')\n", identity,
 323                            psk_identity);
 324                 goto out_err;
 325                 }
 326         if (s_debug)
 327                 BIO_printf(bio_s_out, "PSK client identity found\n");
 328
 329         /* convert the PSK key to binary */
 330         ret = BN_hex2bn(&bn, psk_key);
 331         if (!ret)
 332                 {
 333                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 334                 if (bn)
 335                         BN_free(bn);
 336                 return 0;
 337                 }
 338         if (BN_num_bytes(bn) > (int)max_psk_len)
 339                 {
 340                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 341                         max_psk_len, BN_num_bytes(bn));
 342                 BN_free(bn);
 343                 return 0;
 344                 }
 345
 346         ret = BN_bn2bin(bn, psk);
 347         BN_free(bn);
 348
 349         if (ret < 0)
 350                 goto out_err;
 351         psk_len = (unsigned int)ret;
 352
 353         if (s_debug)
 354                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
 355         return psk_len;
 356  out_err:
 357         if (s_debug)
 358                 BIO_printf(bio_err, "Error in PSK server callback\n");
 359         return 0;
 360         }
 361 #endif
 362
 363 #ifndef OPENSSL_NO_SRP
 364 /* This is a context that we pass to callbacks */
 365 typedef struct srpsrvparm_st
 366         {
 367         char *login;
 368         SRP_VBASE *vb;
 369         SRP_user_pwd *user;
 370         } srpsrvparm;
 371
 372 /* This callback pretends to require some asynchronous logic in order to obtain
 373    a verifier. When the callback is called for a new connection we return
 374    with a negative value. This will provoke the accept etc to return with
 375    an LOOKUP_X509. The main logic of the reinvokes the suspended call
 376    (which would normally occur after a worker has finished) and we
 377    set the user parameters.
 378 */
 379 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
 380         {
 381         srpsrvparm *p = (srpsrvparm *)arg;
 382         if (p->login == NULL && p->user == NULL )
 383                 {
 384                 p->login = SSL_get_srp_username(s);
 385                 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
 386                 return (-1) ;
 387                 }
 388
 389         if (p->user == NULL)
 390                 {
 391                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
 392                 return SSL3_AL_FATAL;
 393                 }
 394         if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
 395                                      p->user->info) < 0)
 396                 {
 397                 *ad = SSL_AD_INTERNAL_ERROR;
 398                 return SSL3_AL_FATAL;
 399                 }
 400         BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
 401         /* need to check whether there are memory leaks */
 402         p->user = NULL;
 403         p->login = NULL;
 404         return SSL_ERROR_NONE;
 405         }
 406
 407 #endif
 408
 409 #ifdef MONOLITH
 410 static void s_server_init(void)
 411         {
 412         accept_socket=-1;
 413         s_server_verify=SSL_VERIFY_NONE;
 414         s_dcert_file=NULL;
 415         s_dkey_file=NULL;
 416         s_dchain_file=NULL;
 417         s_cert_file=TEST_CERT;
 418         s_key_file=NULL;
 419         s_chain_file=NULL;
 420 #ifndef OPENSSL_NO_TLSEXT
 421         s_cert_file2=TEST_CERT2;
 422         s_key_file2=NULL;
 423         ctx2=NULL;
 424 #endif
 425 #ifdef FIONBIO
 426         s_nbio=0;
 427 #endif
 428         s_nbio_test=0;
 429         ctx=NULL;
 430         www=0;
 431
 432         bio_s_out=NULL;
 433         s_debug=0;
 434         s_msg=0;
 435         s_quiet=0;
 436         s_brief=0;
 437         hack=0;
 438 #ifndef OPENSSL_NO_ENGINE
 439         engine_id=NULL;
 440 #endif
 441         }
 442 #endif
 443
 444 static void sv_usage(void)
 445         {
 446         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 447         BIO_printf(bio_err,"\n");
 448         BIO_printf(bio_err," -accept port  - TCP/IP port to accept on (default is %d)\n",PORT);
 449         BIO_printf(bio_err," -unix path    - unix domain socket to accept on\n");
 450         BIO_printf(bio_err," -unlink       - for -unix, unlink existing socket first\n");
 451         BIO_printf(bio_err," -context arg  - set session ID context\n");
 452         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 453         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 454         BIO_printf(bio_err," -verify_return_error - return verification errors\n");
 455         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 456         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 457         BIO_printf(bio_err," -naccept arg  - terminate after 'arg' connections\n");
 458 #ifndef OPENSSL_NO_TLSEXT
 459         BIO_printf(bio_err," -serverinfo arg - PEM serverinfo file for certificate\n");
 460 #endif
 461     BIO_printf(bio_err," -no_resumption_on_reneg - set SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION flag\n");
 462         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
 463                            "                 The CRL(s) are appended to the certificate file\n");
 464         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
 465                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
 466                            "                 the certificate file.\n");
 467         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 468         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 469         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 470         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 471         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 472         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 473         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 474         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 475         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 476         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 477         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 478         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 479 #ifndef OPENSSL_NO_ECDH
 480         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 481                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 482                            "                 (default is nistp256).\n");
 483 #endif
 484 #ifdef FIONBIO
 485         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 486 #endif
 487         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 488         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 489         BIO_printf(bio_err," -debug        - Print more output\n");
 490         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 491         BIO_printf(bio_err," -state        - Print the SSL states\n");
 492         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 493         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 494         BIO_printf(bio_err," -trusted_first - Use locally trusted CA's first when building trust chain\n");
 495         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 496         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 497         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 498         BIO_printf(bio_err," -quiet        - No server output\n");
 499         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 500 #ifndef OPENSSL_NO_PSK
 501         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
 502         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 503 # ifndef OPENSSL_NO_JPAKE
 504         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 505 # endif
 506 #endif
 507 #ifndef OPENSSL_NO_SRP
 508         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
 509         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
 510 #endif
 511         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 512 #ifndef OPENSSL_NO_SSL3_METHOD
 513         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 514 #endif
 515         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
 516         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
 517         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 518         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 519         BIO_printf(bio_err," -dtls1_2      - Just talk DTLSv1.2\n");
 520         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 521         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
 522         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 523         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 524         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 525         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 526         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
 527         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
 528 #ifndef OPENSSL_NO_DH
 529         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 530 #endif
 531 #ifndef OPENSSL_NO_ECDH
 532         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 533 #endif
 534         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
 535         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 536         BIO_printf(bio_err," -hack         - workaround for early Netscape code\n");
 537         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 538         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 539         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 540         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 541 #ifndef OPENSSL_NO_ENGINE
 542         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 543 #endif
 544         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 545         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 546 #ifndef OPENSSL_NO_TLSEXT
 547         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 548         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
 549         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 550         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 551         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 552         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 553         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
 554         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
 555         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 556 # ifndef OPENSSL_NO_NEXTPROTONEG
 557         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
 558 # endif
 559         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 560         BIO_printf(bio_err," -alpn arg  - set the advertised protocols for the ALPN extension (comma-separated list)\n");
 561 #endif
 562         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 563         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 564         BIO_printf(bio_err," -status           - respond to certificate status requests\n");
 565         BIO_printf(bio_err," -status_verbose   - enable status request verbose printout\n");
 566         BIO_printf(bio_err," -status_timeout n - status request responder timeout\n");
 567         BIO_printf(bio_err," -status_url URL   - status request fallback URL\n");
 568         }
 569
 570 static int local_argc=0;
 571 static char **local_argv;
 572
 573 #ifdef CHARSET_EBCDIC
 574 static int ebcdic_new(BIO *bi);
 575 static int ebcdic_free(BIO *a);
 576 static int ebcdic_read(BIO *b, char *out, int outl);
 577 static int ebcdic_write(BIO *b, const char *in, int inl);
 578 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 579 static int ebcdic_gets(BIO *bp, char *buf, int size);
 580 static int ebcdic_puts(BIO *bp, const char *str);
 581
 582 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 583 static BIO_METHOD methods_ebcdic=
 584         {
 585         BIO_TYPE_EBCDIC_FILTER,
 586         "EBCDIC/ASCII filter",
 587         ebcdic_write,
 588         ebcdic_read,
 589         ebcdic_puts,
 590         ebcdic_gets,
 591         ebcdic_ctrl,
 592         ebcdic_new,
 593         ebcdic_free,
 594         };
 595
 596 typedef struct
 597 {
 598         size_t  alloced;
 599         char    buff[1];
 600 } EBCDIC_OUTBUFF;
 601
 602 BIO_METHOD *BIO_f_ebcdic_filter()
 603 {
 604         return(&methods_ebcdic);
 605 }
 606
 607 static int ebcdic_new(BIO *bi)
 608 {
 609         EBCDIC_OUTBUFF *wbuf;
 610
 611         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 612         wbuf->alloced = 1024;
 613         wbuf->buff[0] = '\0';
 614
 615         bi->ptr=(char *)wbuf;
 616         bi->init=1;
 617         bi->flags=0;
 618         return(1);
 619 }
 620
 621 static int ebcdic_free(BIO *a)
 622 {
 623         if (a == NULL) return(0);
 624         if (a->ptr != NULL)
 625                 OPENSSL_free(a->ptr);
 626         a->ptr=NULL;
 627         a->init=0;
 628         a->flags=0;
 629         return(1);
 630 }
 631
 632 static int ebcdic_read(BIO *b, char *out, int outl)
 633 {
 634         int ret=0;
 635
 636         if (out == NULL || outl == 0) return(0);
 637         if (b->next_bio == NULL) return(0);
 638
 639         ret=BIO_read(b->next_bio,out,outl);
 640         if (ret > 0)
 641                 ascii2ebcdic(out,out,ret);
 642         return(ret);
 643 }
 644
 645 static int ebcdic_write(BIO *b, const char *in, int inl)
 646 {
 647         EBCDIC_OUTBUFF *wbuf;
 648         int ret=0;
 649         int num;
 650         unsigned char n;
 651
 652         if ((in == NULL) || (inl <= 0)) return(0);
 653         if (b->next_bio == NULL) return(0);
 654
 655         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 656
 657         if (inl > (num = wbuf->alloced))
 658         {
 659                 num = num + num;  /* double the size */
 660                 if (num < inl)
 661                         num = inl;
 662                 OPENSSL_free(wbuf);
 663                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 664
 665                 wbuf->alloced = num;
 666                 wbuf->buff[0] = '\0';
 667
 668                 b->ptr=(char *)wbuf;
 669         }
 670
 671         ebcdic2ascii(wbuf->buff, in, inl);
 672
 673         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 674
 675         return(ret);
 676 }
 677
 678 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 679 {
 680         long ret;
 681
 682         if (b->next_bio == NULL) return(0);
 683         switch (cmd)
 684         {
 685         case BIO_CTRL_DUP:
 686                 ret=0L;
 687                 break;
 688         default:
 689                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 690                 break;
 691         }
 692         return(ret);
 693 }
 694
 695 static int ebcdic_gets(BIO *bp, char *buf, int size)
 696 {
 697         int i, ret=0;
 698         if (bp->next_bio == NULL) return(0);
 699 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 700         for (i=0; i<size-1; ++i)
 701         {
 702                 ret = ebcdic_read(bp,&buf[i],1);
 703                 if (ret <= 0)
 704                         break;
 705                 else if (buf[i] == '\n')
 706                 {
 707                         ++i;
 708                         break;
 709                 }
 710         }
 711         if (i < size)
 712                 buf[i] = '\0';
 713         return (ret < 0 && i == 0) ? ret : i;
 714 }
 715
 716 static int ebcdic_puts(BIO *bp, const char *str)
 717 {
 718         if (bp->next_bio == NULL) return(0);
 719         return ebcdic_write(bp, str, strlen(str));
 720 }
 721 #endif
 722
 723 #ifndef OPENSSL_NO_TLSEXT
 724
 725 /* This is a context that we pass to callbacks */
 726 typedef struct tlsextctx_st {
 727    char * servername;
 728    BIO * biodebug;
 729    int extension_error;
 730 } tlsextctx;
 731
 732
 733 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 734         {
 735         tlsextctx * p = (tlsextctx *) arg;
 736         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 737         if (servername && p->biodebug)
 738                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 739
 740         if (!p->servername)
 741                 return SSL_TLSEXT_ERR_NOACK;
 742
 743         if (servername)
 744                 {
 745                 if (strcasecmp(servername,p->servername))
 746                         return p->extension_error;
 747                 if (ctx2)
 748                         {
 749                         BIO_printf(p->biodebug,"Switching server context.\n");
 750                         SSL_set_SSL_CTX(s,ctx2);
 751                         }
 752                 }
 753         return SSL_TLSEXT_ERR_OK;
 754 }
 755
 756 /* Structure passed to cert status callback */
 757
 758 typedef struct tlsextstatusctx_st {
 759    /* Default responder to use */
 760    char *host, *path, *port;
 761    int use_ssl;
 762    int timeout;
 763    BIO *err;
 764    int verbose;
 765 } tlsextstatusctx;
 766
 767 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
 768
 769 /* Certificate Status callback. This is called when a client includes a
 770  * certificate status request extension.
 771  *
 772  * This is a simplified version. It examines certificates each time and
 773  * makes one OCSP responder query for each request.
 774  *
 775  * A full version would store details such as the OCSP certificate IDs and
 776  * minimise the number of OCSP responses by caching them until they were
 777  * considered "expired".
 778  */
 779
 780 static int cert_status_cb(SSL *s, void *arg)
 781         {
 782         tlsextstatusctx *srctx = arg;
 783         BIO *err = srctx->err;
 784         char *host, *port, *path;
 785         int use_ssl;
 786         unsigned char *rspder = NULL;
 787         int rspderlen;
 788         STACK_OF(OPENSSL_STRING) *aia = NULL;
 789         X509 *x = NULL;
 790         X509_STORE_CTX inctx;
 791         X509_OBJECT obj;
 792         OCSP_REQUEST *req = NULL;
 793         OCSP_RESPONSE *resp = NULL;
 794         OCSP_CERTID *id = NULL;
 795         STACK_OF(X509_EXTENSION) *exts;
 796         int ret = SSL_TLSEXT_ERR_NOACK;
 797         int i;
 798 #if 0
 799 STACK_OF(OCSP_RESPID) *ids;
 800 SSL_get_tlsext_status_ids(s, &ids);
 801 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
 802 #endif
 803         if (srctx->verbose)
 804                 BIO_puts(err, "cert_status: callback called\n");
 805         /* Build up OCSP query from server certificate */
 806         x = SSL_get_certificate(s);
 807         aia = X509_get1_ocsp(x);
 808         if (aia)
 809                 {
 810                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
 811                         &host, &port, &path, &use_ssl))
 812                         {
 813                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
 814                         goto err;
 815                         }
 816                 if (srctx->verbose)
 817                         BIO_printf(err, "cert_status: AIA URL: %s\n",
 818                                         sk_OPENSSL_STRING_value(aia, 0));
 819                 }
 820         else
 821                 {
 822                 if (!srctx->host)
 823                         {
 824                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
 825                         goto done;
 826                         }
 827                 host = srctx->host;
 828                 path = srctx->path;
 829                 port = srctx->port;
 830                 use_ssl = srctx->use_ssl;
 831                 }
 832
 833         if (!X509_STORE_CTX_init(&inctx,
 834                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
 835                                 NULL, NULL))
 836                 goto err;
 837         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
 838                                 X509_get_issuer_name(x),&obj) <= 0)
 839                 {
 840                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
 841                 X509_STORE_CTX_cleanup(&inctx);
 842                 goto done;
 843                 }
 844         req = OCSP_REQUEST_new();
 845         if (!req)
 846                 goto err;
 847         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
 848         X509_free(obj.data.x509);
 849         X509_STORE_CTX_cleanup(&inctx);
 850         if (!id)
 851                 goto err;
 852         if (!OCSP_request_add0_id(req, id))
 853                 goto err;
 854         id = NULL;
 855         /* Add any extensions to the request */
 856         SSL_get_tlsext_status_exts(s, &exts);
 857         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
 858                 {
 859                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
 860                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
 861                         goto err;
 862                 }
 863         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
 864                                         srctx->timeout);
 865         if (!resp)
 866                 {
 867                 BIO_puts(err, "cert_status: error querying responder\n");
 868                 goto done;
 869                 }
 870         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
 871         if (rspderlen <= 0)
 872                 goto err;
 873         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
 874         if (srctx->verbose)
 875                 {
 876                 BIO_puts(err, "cert_status: ocsp response sent:\n");
 877                 OCSP_RESPONSE_print(err, resp, 2);
 878                 }
 879         ret = SSL_TLSEXT_ERR_OK;
 880         done:
 881         if (ret != SSL_TLSEXT_ERR_OK)
 882                 ERR_print_errors(err);
 883         if (aia)
 884                 {
 885                 OPENSSL_free(host);
 886                 OPENSSL_free(path);
 887                 OPENSSL_free(port);
 888                 X509_email_free(aia);
 889                 }
 890         if (id)
 891                 OCSP_CERTID_free(id);
 892         if (req)
 893                 OCSP_REQUEST_free(req);
 894         if (resp)
 895                 OCSP_RESPONSE_free(resp);
 896         return ret;
 897         err:
 898         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
 899         goto done;
 900         }
 901
 902 # ifndef OPENSSL_NO_NEXTPROTONEG
 903 /* This is the context that we pass to next_proto_cb */
 904 typedef struct tlsextnextprotoctx_st {
 905         unsigned char *data;
 906         unsigned int len;
 907 } tlsextnextprotoctx;
 908
 909 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
 910         {
 911         tlsextnextprotoctx *next_proto = arg;
 912
 913         *data = next_proto->data;
 914         *len = next_proto->len;
 915
 916         return SSL_TLSEXT_ERR_OK;
 917         }
 918 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 919
 920 /* This the context that we pass to alpn_cb */
 921 typedef struct tlsextalpnctx_st {
 922         unsigned char *data;
 923         unsigned short len;
 924 } tlsextalpnctx;
 925
 926 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 927         {
 928         tlsextalpnctx *alpn_ctx = arg;
 929
 930         if (!s_quiet)
 931                 {
 932                 /* We can assume that |in| is syntactically valid. */
 933                 unsigned i;
 934                 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
 935                 for (i = 0; i < inlen; )
 936                         {
 937                         if (i)
 938                                 BIO_write(bio_s_out, ", ", 2);
 939                         BIO_write(bio_s_out, &in[i + 1], in[i]);
 940                         i += in[i] + 1;
 941                         }
 942                 BIO_write(bio_s_out, "\n", 1);
 943                 }
 944
 945         if (SSL_select_next_proto((unsigned char**) out, outlen, alpn_ctx->data, alpn_ctx->len, in, inlen) !=
 946             OPENSSL_NPN_NEGOTIATED)
 947                 {
 948                 return SSL_TLSEXT_ERR_NOACK;
 949                 }
 950
 951         if (!s_quiet)
 952                 {
 953                 BIO_printf(bio_s_out, "ALPN protocols selected: ");
 954                 BIO_write(bio_s_out, *out, *outlen);
 955                 BIO_write(bio_s_out, "\n", 1);
 956                 }
 957
 958         return SSL_TLSEXT_ERR_OK;
 959         }
 960 #endif  /* ndef OPENSSL_NO_TLSEXT */
 961
 962 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
 963         {
 964         /* disable resumption for sessions with forward secure ciphers */
 965         return is_forward_secure;
 966         }
 967
 968 int MAIN(int, char **);
 969
 970 #ifndef OPENSSL_NO_JPAKE
 971 static char *jpake_secret = NULL;
 972 #define no_jpake !jpake_secret
 973 #else
 974 #define no_jpake 1
 975 #endif
 976 #ifndef OPENSSL_NO_SRP
 977         static srpsrvparm srp_callback_parm;
 978 #endif
 979 static char *srtp_profiles = NULL;
 980
 981 int MAIN(int argc, char *argv[])
 982         {
 983         X509_VERIFY_PARAM *vpm = NULL;
 984         int badarg = 0;
 985         short port=PORT;
 986         const char *unix_path=NULL;
 987 #ifndef NO_SYS_UN_H
 988         int unlink_unix_path=0;
 989 #endif
 990         int (*server_cb)(char *hostname, int s, int stype, unsigned char *context);
 991         char *CApath=NULL,*CAfile=NULL;
 992         char *chCApath=NULL,*chCAfile=NULL;
 993         char *vfyCApath=NULL,*vfyCAfile=NULL;
 994         unsigned char *context = NULL;
 995         char *dhfile = NULL;
 996         int badop=0;
 997         int ret=1;
 998         int build_chain = 0;
 999         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
1000         int state=0;
1001         const SSL_METHOD *meth=NULL;
1002         int socket_type=SOCK_STREAM;
1003         ENGINE *e=NULL;
1004         char *inrand=NULL;
1005         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
1006         char *passarg = NULL, *pass = NULL;
1007         char *dpassarg = NULL, *dpass = NULL;
1008         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
1009         X509 *s_cert = NULL, *s_dcert = NULL;
1010         STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
1011         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
1012         int no_cache = 0, ext_cache = 0;
1013         int rev = 0, naccept = -1;
1014         int sdebug = 0;
1015 #ifndef OPENSSL_NO_TLSEXT
1016         EVP_PKEY *s_key2 = NULL;
1017         X509 *s_cert2 = NULL;
1018         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
1019 # ifndef OPENSSL_NO_NEXTPROTONEG
1020         const char *next_proto_neg_in = NULL;
1021         tlsextnextprotoctx next_proto = { NULL, 0};
1022 # endif
1023         const char *alpn_in = NULL;
1024         tlsextalpnctx alpn_ctx = { NULL, 0};
1025 #endif
1026 #ifndef OPENSSL_NO_PSK
1027         /* by default do not send a PSK identity hint */
1028         static char *psk_identity_hint=NULL;
1029 #endif
1030 #ifndef OPENSSL_NO_SRP
1031         char *srpuserseed = NULL;
1032         char *srp_verifier_file = NULL;
1033 #endif
1034         SSL_EXCERT *exc = NULL;
1035         SSL_CONF_CTX *cctx = NULL;
1036         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
1037
1038         char *crl_file = NULL;
1039         int crl_format = FORMAT_PEM;
1040         int crl_download = 0;
1041         STACK_OF(X509_CRL) *crls = NULL;
1042
1043         meth=SSLv23_server_method();
1044
1045         local_argc=argc;
1046         local_argv=argv;
1047
1048         apps_startup();
1049 #ifdef MONOLITH
1050         s_server_init();
1051 #endif
1052
1053         if (bio_err == NULL)
1054                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
1055
1056         if (!load_config(bio_err, NULL))
1057                 goto end;
1058
1059         cctx = SSL_CONF_CTX_new();
1060         if (!cctx)
1061                 goto end;
1062         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
1063         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
1064
1065         verify_depth=0;
1066 #ifdef FIONBIO
1067         s_nbio=0;
1068 #endif
1069         s_nbio_test=0;
1070
1071         argc--;
1072         argv++;
1073
1074         while (argc >= 1)
1075                 {
1076                 if      ((strcmp(*argv,"-port") == 0) ||
1077                          (strcmp(*argv,"-accept") == 0))
1078                         {
1079                         if (--argc < 1) goto bad;
1080                         if (!extract_port(*(++argv),&port))
1081                                 goto bad;
1082                         }
1083                 else if (strcmp(*argv,"-unix") == 0)
1084                         {
1085 #ifdef NO_SYS_UN_H
1086                         BIO_printf(bio_err, "unix domain sockets unsupported\n");
1087                         goto bad;
1088 #else
1089                         if (--argc < 1) goto bad;
1090                         unix_path = *(++argv);
1091 #endif
1092                         }
1093                 else if (strcmp(*argv,"-unlink") == 0)
1094                         {
1095 #ifdef NO_SYS_UN_H
1096                         BIO_printf(bio_err, "unix domain sockets unsupported\n");
1097                         goto bad;
1098 #else
1099                         unlink_unix_path = 1;
1100 #endif
1101                         }
1102                 else if (strcmp(*argv,"-naccept") == 0)
1103                         {
1104                         if (--argc < 1) goto bad;
1105                         naccept = atol(*(++argv));
1106                         if (naccept <= 0)
1107                                 {
1108                                 BIO_printf(bio_err, "bad accept value %s\n",
1109                                                         *argv);
1110                                 goto bad;
1111                                 }
1112                         }
1113                 else if (strcmp(*argv,"-verify") == 0)
1114                         {
1115                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1116                         if (--argc < 1) goto bad;
1117                         verify_depth=atoi(*(++argv));
1118                         if (!s_quiet)
1119                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1120                         }
1121                 else if (strcmp(*argv,"-Verify") == 0)
1122                         {
1123                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1124                                 SSL_VERIFY_CLIENT_ONCE;
1125                         if (--argc < 1) goto bad;
1126                         verify_depth=atoi(*(++argv));
1127                         if (!s_quiet)
1128                                 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1129                         }
1130                 else if (strcmp(*argv,"-context") == 0)
1131                         {
1132                         if (--argc < 1) goto bad;
1133                         context= (unsigned char *)*(++argv);
1134                         }
1135                 else if (strcmp(*argv,"-cert") == 0)
1136                         {
1137                         if (--argc < 1) goto bad;
1138                         s_cert_file= *(++argv);
1139                         }
1140                 else if (strcmp(*argv,"-CRL") == 0)
1141                         {
1142                         if (--argc < 1) goto bad;
1143                         crl_file= *(++argv);
1144                         }
1145                 else if (strcmp(*argv,"-crl_download") == 0)
1146                         crl_download = 1;
1147 #ifndef OPENSSL_NO_TLSEXT
1148                 else if (strcmp(*argv,"-serverinfo") == 0)
1149                         {
1150                         if (--argc < 1) goto bad;
1151                         s_serverinfo_file = *(++argv);
1152                         }
1153 #endif
1154                 else if (strcmp(*argv,"-certform") == 0)
1155                         {
1156                         if (--argc < 1) goto bad;
1157                         s_cert_format = str2fmt(*(++argv));
1158                         }
1159                 else if (strcmp(*argv,"-key") == 0)
1160                         {
1161                         if (--argc < 1) goto bad;
1162                         s_key_file= *(++argv);
1163                         }
1164                 else if (strcmp(*argv,"-keyform") == 0)
1165                         {
1166                         if (--argc < 1) goto bad;
1167                         s_key_format = str2fmt(*(++argv));
1168                         }
1169                 else if (strcmp(*argv,"-pass") == 0)
1170                         {
1171                         if (--argc < 1) goto bad;
1172                         passarg = *(++argv);
1173                         }
1174                 else if (strcmp(*argv,"-cert_chain") == 0)
1175                         {
1176                         if (--argc < 1) goto bad;
1177                         s_chain_file= *(++argv);
1178                         }
1179                 else if (strcmp(*argv,"-dhparam") == 0)
1180                         {
1181                         if (--argc < 1) goto bad;
1182                         dhfile = *(++argv);
1183                         }
1184                 else if (strcmp(*argv,"-dcertform") == 0)
1185                         {
1186                         if (--argc < 1) goto bad;
1187                         s_dcert_format = str2fmt(*(++argv));
1188                         }
1189                 else if (strcmp(*argv,"-dcert") == 0)
1190                         {
1191                         if (--argc < 1) goto bad;
1192                         s_dcert_file= *(++argv);
1193                         }
1194                 else if (strcmp(*argv,"-dkeyform") == 0)
1195                         {
1196                         if (--argc < 1) goto bad;
1197                         s_dkey_format = str2fmt(*(++argv));
1198                         }
1199                 else if (strcmp(*argv,"-dpass") == 0)
1200                         {
1201                         if (--argc < 1) goto bad;
1202                         dpassarg = *(++argv);
1203                         }
1204                 else if (strcmp(*argv,"-dkey") == 0)
1205                         {
1206                         if (--argc < 1) goto bad;
1207                         s_dkey_file= *(++argv);
1208                         }
1209                 else if (strcmp(*argv,"-dcert_chain") == 0)
1210                         {
1211                         if (--argc < 1) goto bad;
1212                         s_dchain_file= *(++argv);
1213                         }
1214                 else if (strcmp(*argv,"-nocert") == 0)
1215                         {
1216                         nocert=1;
1217                         }
1218                 else if (strcmp(*argv,"-CApath") == 0)
1219                         {
1220                         if (--argc < 1) goto bad;
1221                         CApath= *(++argv);
1222                         }
1223                 else if (strcmp(*argv,"-chainCApath") == 0)
1224                         {
1225                         if (--argc < 1) goto bad;
1226                         chCApath= *(++argv);
1227                         }
1228                 else if (strcmp(*argv,"-verifyCApath") == 0)
1229                         {
1230                         if (--argc < 1) goto bad;
1231                         vfyCApath= *(++argv);
1232                         }
1233                 else if (strcmp(*argv,"-no_cache") == 0)
1234                         no_cache = 1;
1235                 else if (strcmp(*argv,"-ext_cache") == 0)
1236                         ext_cache = 1;
1237                 else if (strcmp(*argv,"-CRLform") == 0)
1238                         {
1239                         if (--argc < 1) goto bad;
1240                         crl_format = str2fmt(*(++argv));
1241                         }
1242                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1243                         {
1244                         if (badarg)
1245                                 goto bad;
1246                         continue;
1247                         }
1248                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
1249                         {
1250                         if (badarg)
1251                                 goto bad;
1252                         continue;
1253                         }
1254                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
1255                         {
1256                         if (badarg)
1257                                 goto bad;
1258                         continue;
1259                         }
1260                 else if (strcmp(*argv,"-verify_return_error") == 0)
1261                         verify_return_error = 1;
1262                 else if (strcmp(*argv,"-verify_quiet") == 0)
1263                         verify_quiet = 1;
1264                 else if (strcmp(*argv,"-build_chain") == 0)
1265                         build_chain = 1;
1266                 else if (strcmp(*argv,"-CAfile") == 0)
1267                         {
1268                         if (--argc < 1) goto bad;
1269                         CAfile= *(++argv);
1270                         }
1271                 else if (strcmp(*argv,"-chainCAfile") == 0)
1272                         {
1273                         if (--argc < 1) goto bad;
1274                         chCAfile= *(++argv);
1275                         }
1276                 else if (strcmp(*argv,"-verifyCAfile") == 0)
1277                         {
1278                         if (--argc < 1) goto bad;
1279                         vfyCAfile= *(++argv);
1280                         }
1281 #ifdef FIONBIO
1282                 else if (strcmp(*argv,"-nbio") == 0)
1283                         { s_nbio=1; }
1284 #endif
1285                 else if (strcmp(*argv,"-nbio_test") == 0)
1286                         {
1287 #ifdef FIONBIO
1288                         s_nbio=1;
1289 #endif
1290                         s_nbio_test=1;
1291                         }
1292                 else if (strcmp(*argv,"-ign_eof") == 0)
1293                         s_ign_eof=1;
1294                 else if (strcmp(*argv,"-no_ign_eof") == 0)
1295                         s_ign_eof=0;
1296                 else if (strcmp(*argv,"-debug") == 0)
1297                         { s_debug=1; }
1298 #ifndef OPENSSL_NO_TLSEXT
1299                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1300                         s_tlsextdebug=1;
1301                 else if (strcmp(*argv,"-status") == 0)
1302                         s_tlsextstatus=1;
1303                 else if (strcmp(*argv,"-status_verbose") == 0)
1304                         {
1305                         s_tlsextstatus=1;
1306                         tlscstatp.verbose = 1;
1307                         }
1308                 else if (!strcmp(*argv, "-status_timeout"))
1309                         {
1310                         s_tlsextstatus=1;
1311                         if (--argc < 1) goto bad;
1312                         tlscstatp.timeout = atoi(*(++argv));
1313                         }
1314                 else if (!strcmp(*argv, "-status_url"))
1315                         {
1316                         s_tlsextstatus=1;
1317                         if (--argc < 1) goto bad;
1318                         if (!OCSP_parse_url(*(++argv),
1319                                         &tlscstatp.host,
1320                                         &tlscstatp.port,
1321                                         &tlscstatp.path,
1322                                         &tlscstatp.use_ssl))
1323                                 {
1324                                 BIO_printf(bio_err, "Error parsing URL\n");
1325                                 goto bad;
1326                                 }
1327                         }
1328 #endif
1329                 else if (strcmp(*argv,"-msg") == 0)
1330                         { s_msg=1; }
1331                 else if (strcmp(*argv,"-msgfile") == 0)
1332                         {
1333                         if (--argc < 1) goto bad;
1334                         bio_s_msg = BIO_new_file(*(++argv), "w");
1335                         }
1336 #ifndef OPENSSL_NO_SSL_TRACE
1337                 else if (strcmp(*argv,"-trace") == 0)
1338                         { s_msg=2; }
1339 #endif
1340                 else if (strcmp(*argv,"-security_debug") == 0)
1341                         { sdebug=1; }
1342                 else if (strcmp(*argv,"-security_debug_verbose") == 0)
1343                         { sdebug=2; }
1344                 else if (strcmp(*argv,"-hack") == 0)
1345                         { hack=1; }
1346                 else if (strcmp(*argv,"-state") == 0)
1347                         { state=1; }
1348                 else if (strcmp(*argv,"-crlf") == 0)
1349                         { s_crlf=1; }
1350                 else if (strcmp(*argv,"-quiet") == 0)
1351                         { s_quiet=1; }
1352                 else if (strcmp(*argv,"-brief") == 0)
1353                         {
1354                         s_quiet=1;
1355                         s_brief=1;
1356                         verify_quiet=1;
1357                         }
1358                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1359                         { no_tmp_rsa=1; }
1360                 else if (strcmp(*argv,"-no_dhe") == 0)
1361                         { no_dhe=1; }
1362                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1363                         { no_ecdhe=1; }
1364                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1365                         { no_resume_ephemeral = 1; }
1366 #ifndef OPENSSL_NO_PSK
1367                 else if (strcmp(*argv,"-psk_hint") == 0)
1368                         {
1369                         if (--argc < 1) goto bad;
1370                         psk_identity_hint= *(++argv);
1371                         }
1372                 else if (strcmp(*argv,"-psk") == 0)
1373                         {
1374                         size_t i;
1375
1376                         if (--argc < 1) goto bad;
1377                         psk_key=*(++argv);
1378                         for (i=0; i<strlen(psk_key); i++)
1379                                 {
1380                                 if (isxdigit((unsigned char)psk_key[i]))
1381                                         continue;
1382                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1383                                 goto bad;
1384                                 }
1385                         }
1386 #endif
1387 #ifndef OPENSSL_NO_SRP
1388                 else if (strcmp(*argv, "-srpvfile") == 0)
1389                         {
1390                         if (--argc < 1) goto bad;
1391                         srp_verifier_file = *(++argv);
1392                         meth = TLSv1_server_method();
1393                         }
1394                 else if (strcmp(*argv, "-srpuserseed") == 0)
1395                         {
1396                         if (--argc < 1) goto bad;
1397                         srpuserseed = *(++argv);
1398                         meth = TLSv1_server_method();
1399                         }
1400 #endif
1401                 else if (strcmp(*argv,"-rev") == 0)
1402                         { rev=1; }
1403                 else if (strcmp(*argv,"-www") == 0)
1404                         { www=1; }
1405                 else if (strcmp(*argv,"-WWW") == 0)
1406                         { www=2; }
1407                 else if (strcmp(*argv,"-HTTP") == 0)
1408                         { www=3; }
1409 #ifndef OPENSSL_NO_SSL2
1410                 else if (strcmp(*argv,"-ssl2") == 0)
1411                         {
1412                         no_ecdhe=1;
1413                         meth=SSLv2_server_method();
1414                         }
1415 #endif
1416 #ifndef OPENSSL_NO_SSL3_METHOD
1417                 else if (strcmp(*argv,"-ssl3") == 0)
1418                         { meth=SSLv3_server_method(); }
1419 #endif
1420 #ifndef OPENSSL_NO_TLS1
1421                 else if (strcmp(*argv,"-tls1") == 0)
1422                         { meth=TLSv1_server_method(); }
1423                 else if (strcmp(*argv,"-tls1_1") == 0)
1424                         { meth=TLSv1_1_server_method(); }
1425                 else if (strcmp(*argv,"-tls1_2") == 0)
1426                         { meth=TLSv1_2_server_method(); }
1427 #endif
1428 #ifndef OPENSSL_NO_DTLS1
1429                 else if (strcmp(*argv,"-dtls") == 0)
1430                         {
1431                         meth=DTLS_server_method();
1432                         socket_type = SOCK_DGRAM;
1433                         }
1434                 else if (strcmp(*argv,"-dtls1") == 0)
1435                         {
1436                         meth=DTLSv1_server_method();
1437                         socket_type = SOCK_DGRAM;
1438                         }
1439                 else if (strcmp(*argv,"-dtls1_2") == 0)
1440                         {
1441                         meth=DTLSv1_2_server_method();
1442                         socket_type = SOCK_DGRAM;
1443                         }
1444                 else if (strcmp(*argv,"-timeout") == 0)
1445                         enable_timeouts = 1;
1446                 else if (strcmp(*argv,"-mtu") == 0)
1447                         {
1448                         if (--argc < 1) goto bad;
1449                         socket_mtu = atol(*(++argv));
1450                         }
1451                 else if (strcmp(*argv, "-chain") == 0)
1452                         cert_chain = 1;
1453 #endif
1454                 else if (strcmp(*argv, "-id_prefix") == 0)
1455                         {
1456                         if (--argc < 1) goto bad;
1457                         session_id_prefix = *(++argv);
1458                         }
1459 #ifndef OPENSSL_NO_ENGINE
1460                 else if (strcmp(*argv,"-engine") == 0)
1461                         {
1462                         if (--argc < 1) goto bad;
1463                         engine_id= *(++argv);
1464                         }
1465 #endif
1466                 else if (strcmp(*argv,"-rand") == 0)
1467                         {
1468                         if (--argc < 1) goto bad;
1469                         inrand= *(++argv);
1470                         }
1471 #ifndef OPENSSL_NO_TLSEXT
1472                 else if (strcmp(*argv,"-servername") == 0)
1473                         {
1474                         if (--argc < 1) goto bad;
1475                         tlsextcbp.servername= *(++argv);
1476                         }
1477                 else if (strcmp(*argv,"-servername_fatal") == 0)
1478                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1479                 else if (strcmp(*argv,"-cert2") == 0)
1480                         {
1481                         if (--argc < 1) goto bad;
1482                         s_cert_file2= *(++argv);
1483                         }
1484                 else if (strcmp(*argv,"-key2") == 0)
1485                         {
1486                         if (--argc < 1) goto bad;
1487                         s_key_file2= *(++argv);
1488                         }
1489 # ifndef OPENSSL_NO_NEXTPROTONEG
1490                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1491                         {
1492                         if (--argc < 1) goto bad;
1493                         next_proto_neg_in = *(++argv);
1494                         }
1495 # endif
1496                 else if (strcmp(*argv,"-alpn") == 0)
1497                         {
1498                         if (--argc < 1) goto bad;
1499                         alpn_in = *(++argv);
1500                         }
1501 #endif
1502 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1503                 else if (strcmp(*argv,"-jpake") == 0)
1504                         {
1505                         if (--argc < 1) goto bad;
1506                         jpake_secret = *(++argv);
1507                         }
1508 #endif
1509                 else if (strcmp(*argv,"-use_srtp") == 0)
1510                         {
1511                         if (--argc < 1) goto bad;
1512                         srtp_profiles = *(++argv);
1513                         }
1514                 else if (strcmp(*argv,"-keymatexport") == 0)
1515                         {
1516                         if (--argc < 1) goto bad;
1517                         keymatexportlabel= *(++argv);
1518                         }
1519                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1520                         {
1521                         if (--argc < 1) goto bad;
1522                         keymatexportlen=atoi(*(++argv));
1523                         if (keymatexportlen == 0) goto bad;
1524                         }
1525                 else
1526                         {
1527                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1528                         badop=1;
1529                         break;
1530                         }
1531                 argc--;
1532                 argv++;
1533                 }
1534         if (badop)
1535                 {
1536 bad:
1537                 sv_usage();
1538                 goto end;
1539                 }
1540 #ifndef OPENSSL_NO_DTLS1
1541         if (www && socket_type == SOCK_DGRAM)
1542                 {
1543                 BIO_printf(bio_err,
1544                                 "Can't use -HTTP, -www or -WWW with DTLS\n");
1545                 goto end;
1546                 }
1547 #endif
1548
1549         if (unix_path && (socket_type != SOCK_STREAM))
1550                 {
1551                 BIO_printf(bio_err, "Can't use unix sockets and datagrams together\n");
1552                         goto end;
1553                 }
1554 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1555         if (jpake_secret)
1556                 {
1557                 if (psk_key)
1558                         {
1559                         BIO_printf(bio_err,
1560                                    "Can't use JPAKE and PSK together\n");
1561                         goto end;
1562                         }
1563                 psk_identity = "JPAKE";
1564                 }
1565 #endif
1566
1567         SSL_load_error_strings();
1568         OpenSSL_add_ssl_algorithms();
1569
1570 #ifndef OPENSSL_NO_ENGINE
1571         e = setup_engine(bio_err, engine_id, 1);
1572 #endif
1573
1574         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1575                 {
1576                 BIO_printf(bio_err, "Error getting password\n");
1577                 goto end;
1578                 }
1579
1580
1581         if (s_key_file == NULL)
1582                 s_key_file = s_cert_file;
1583 #ifndef OPENSSL_NO_TLSEXT
1584         if (s_key_file2 == NULL)
1585                 s_key_file2 = s_cert_file2;
1586 #endif
1587
1588         if (!load_excert(&exc, bio_err))
1589                 goto end;
1590
1591         if (nocert == 0)
1592                 {
1593                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1594                        "server certificate private key file");
1595                 if (!s_key)
1596                         {
1597                         ERR_print_errors(bio_err);
1598                         goto end;
1599                         }
1600
1601                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1602                         NULL, e, "server certificate file");
1603
1604                 if (!s_cert)
1605                         {
1606                         ERR_print_errors(bio_err);
1607                         goto end;
1608                         }
1609                 if (s_chain_file)
1610                         {
1611                         s_chain = load_certs(bio_err, s_chain_file,FORMAT_PEM,
1612                                         NULL, e, "server certificate chain");
1613                         if (!s_chain)
1614                                 goto end;
1615                         }
1616
1617 #ifndef OPENSSL_NO_TLSEXT
1618                 if (tlsextcbp.servername)
1619                         {
1620                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1621                                 "second server certificate private key file");
1622                         if (!s_key2)
1623                                 {
1624                                 ERR_print_errors(bio_err);
1625                                 goto end;
1626                                 }
1627
1628                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1629                                 NULL, e, "second server certificate file");
1630
1631                         if (!s_cert2)
1632                                 {
1633                                 ERR_print_errors(bio_err);
1634                                 goto end;
1635                                 }
1636                         }
1637 #endif /* OPENSSL_NO_TLSEXT */
1638                 }
1639
1640 #if !defined(OPENSSL_NO_TLSEXT)
1641 # if !defined(OPENSSL_NO_NEXTPROTONEG)
1642         if (next_proto_neg_in)
1643                 {
1644                 unsigned short len;
1645                 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1646                 if (next_proto.data == NULL)
1647                         goto end;
1648                 next_proto.len = len;
1649                 }
1650         else
1651                 {
1652                 next_proto.data = NULL;
1653                 }
1654 # endif
1655         alpn_ctx.data = NULL;
1656         if (alpn_in)
1657                 {
1658                 unsigned short len;
1659                 alpn_ctx.data = next_protos_parse(&len, alpn_in);
1660                 if (alpn_ctx.data == NULL)
1661                         goto end;
1662                 alpn_ctx.len = len;
1663                 }
1664 #endif
1665
1666         if (crl_file)
1667                 {
1668                 X509_CRL *crl;
1669                 crl = load_crl(crl_file, crl_format);
1670                 if (!crl)
1671                         {
1672                         BIO_puts(bio_err, "Error loading CRL\n");
1673                         ERR_print_errors(bio_err);
1674                         goto end;
1675                         }
1676                 crls = sk_X509_CRL_new_null();
1677                 if (!crls || !sk_X509_CRL_push(crls, crl))
1678                         {
1679                         BIO_puts(bio_err, "Error adding CRL\n");
1680                         ERR_print_errors(bio_err);
1681                         X509_CRL_free(crl);
1682                         goto end;
1683                         }
1684                 }
1685
1686
1687         if (s_dcert_file)
1688                 {
1689
1690                 if (s_dkey_file == NULL)
1691                         s_dkey_file = s_dcert_file;
1692
1693                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1694                                 0, dpass, e,
1695                                "second certificate private key file");
1696                 if (!s_dkey)
1697                         {
1698                         ERR_print_errors(bio_err);
1699                         goto end;
1700                         }
1701
1702                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1703                                 NULL, e, "second server certificate file");
1704
1705                 if (!s_dcert)
1706                         {
1707                         ERR_print_errors(bio_err);
1708                         goto end;
1709                         }
1710                 if (s_dchain_file)
1711                         {
1712                         s_dchain = load_certs(bio_err, s_dchain_file,FORMAT_PEM,
1713                                 NULL, e, "second server certificate chain");
1714                         if (!s_dchain)
1715                                 goto end;
1716                         }
1717
1718                 }
1719
1720         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1721                 && !RAND_status())
1722                 {
1723                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1724                 }
1725         if (inrand != NULL)
1726                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1727                         app_RAND_load_files(inrand));
1728
1729         if (bio_s_out == NULL)
1730                 {
1731                 if (s_quiet && !s_debug)
1732                         {
1733                         bio_s_out=BIO_new(BIO_s_null());
1734                         if (s_msg && !bio_s_msg)
1735                                 bio_s_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1736                         }
1737                 else
1738                         {
1739                         if (bio_s_out == NULL)
1740                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1741                         }
1742                 }
1743
1744 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1745         if (nocert)
1746 #endif
1747                 {
1748                 s_cert_file=NULL;
1749                 s_key_file=NULL;
1750                 s_dcert_file=NULL;
1751                 s_dkey_file=NULL;
1752 #ifndef OPENSSL_NO_TLSEXT
1753                 s_cert_file2=NULL;
1754                 s_key_file2=NULL;
1755 #endif
1756                 }
1757
1758         ctx=SSL_CTX_new(meth);
1759         if (sdebug)
1760                 ssl_ctx_security_debug(ctx, bio_err, sdebug);
1761         if (ctx == NULL)
1762                 {
1763                 ERR_print_errors(bio_err);
1764                 goto end;
1765                 }
1766         if (session_id_prefix)
1767                 {
1768                 if(strlen(session_id_prefix) >= 32)
1769                         BIO_printf(bio_err,
1770 "warning: id_prefix is too long, only one new session will be possible\n");
1771                 else if(strlen(session_id_prefix) >= 16)
1772                         BIO_printf(bio_err,
1773 "warning: id_prefix is too long if you use SSLv2\n");
1774                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1775                         {
1776                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1777                         ERR_print_errors(bio_err);
1778                         goto end;
1779                         }
1780                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1781                 }
1782         SSL_CTX_set_quiet_shutdown(ctx,1);
1783         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1784         if (exc) ssl_ctx_set_excert(ctx, exc);
1785         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1786          * Setting read ahead solves this problem.
1787          */
1788         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1789
1790         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1791         if (no_cache)
1792                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1793         else if (ext_cache)
1794                 init_session_cache_ctx(ctx);
1795         else
1796                 SSL_CTX_sess_set_cache_size(ctx,128);
1797
1798         if (srtp_profiles != NULL)
1799                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1800
1801 #if 0
1802         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1803 #endif
1804
1805 #if 0
1806         if (s_cert_file == NULL)
1807                 {
1808                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1809                 goto end;
1810                 }
1811 #endif
1812
1813         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1814                 (!SSL_CTX_set_default_verify_paths(ctx)))
1815                 {
1816                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1817                 ERR_print_errors(bio_err);
1818                 /* goto end; */
1819                 }
1820         if (vpm)
1821                 SSL_CTX_set1_param(ctx, vpm);
1822
1823         ssl_ctx_add_crls(ctx, crls, 0);
1824         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1825                 goto end;
1826
1827         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1828                                                 crls, crl_download))
1829                 {
1830                 BIO_printf(bio_err, "Error loading store locations\n");
1831                 ERR_print_errors(bio_err);
1832                 goto end;
1833                 }
1834
1835 #ifndef OPENSSL_NO_TLSEXT
1836         if (s_cert2)
1837                 {
1838                 ctx2=SSL_CTX_new(meth);
1839                 if (ctx2 == NULL)
1840                         {
1841                         ERR_print_errors(bio_err);
1842                         goto end;
1843                         }
1844                 }
1845
1846         if (ctx2)
1847                 {
1848                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1849
1850                 if (sdebug)
1851                         ssl_ctx_security_debug(ctx, bio_err, sdebug);
1852
1853                 if (session_id_prefix)
1854                         {
1855                         if(strlen(session_id_prefix) >= 32)
1856                                 BIO_printf(bio_err,
1857                                         "warning: id_prefix is too long, only one new session will be possible\n");
1858                         else if(strlen(session_id_prefix) >= 16)
1859                                 BIO_printf(bio_err,
1860                                         "warning: id_prefix is too long if you use SSLv2\n");
1861                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1862                                 {
1863                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1864                                 ERR_print_errors(bio_err);
1865                                 goto end;
1866                                 }
1867                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1868                         }
1869                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1870                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1871                 if (exc) ssl_ctx_set_excert(ctx2, exc);
1872                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1873                  * Setting read ahead solves this problem.
1874                  */
1875                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1876
1877                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1878
1879                 if (no_cache)
1880                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1881                 else if (ext_cache)
1882                         init_session_cache_ctx(ctx2);
1883                 else
1884                         SSL_CTX_sess_set_cache_size(ctx2,128);
1885
1886                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1887                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1888                         {
1889                         ERR_print_errors(bio_err);
1890                         }
1891                 if (vpm)
1892                         SSL_CTX_set1_param(ctx2, vpm);
1893
1894                 ssl_ctx_add_crls(ctx2, crls, 0);
1895                 if (!args_ssl_call(ctx2, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1896                         goto end;
1897                 }
1898
1899 # ifndef OPENSSL_NO_NEXTPROTONEG
1900         if (next_proto.data)
1901                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1902 # endif
1903         if (alpn_ctx.data)
1904                 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1905 #endif
1906
1907 #ifndef OPENSSL_NO_DH
1908         if (!no_dhe)
1909                 {
1910                 DH *dh=NULL;
1911
1912                 if (dhfile)
1913                         dh = load_dh_param(dhfile);
1914                 else if (s_cert_file)
1915                         dh = load_dh_param(s_cert_file);
1916
1917                 if (dh != NULL)
1918                         {
1919                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1920                         }
1921                 else
1922                         {
1923                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1924                         }
1925                 (void)BIO_flush(bio_s_out);
1926
1927                 if (dh == NULL)
1928                         SSL_CTX_set_dh_auto(ctx, 1);
1929                 else if (!SSL_CTX_set_tmp_dh(ctx,dh))
1930                         {
1931                         BIO_puts(bio_err, "Error setting temp DH parameters\n");
1932                         ERR_print_errors(bio_err);
1933                         DH_free(dh);
1934                         goto end;
1935                         }
1936 #ifndef OPENSSL_NO_TLSEXT
1937                 if (ctx2)
1938                         {
1939                         if (!dhfile)
1940                                 {
1941                                 DH *dh2=load_dh_param(s_cert_file2);
1942                                 if (dh2 != NULL)
1943                                         {
1944                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1945                                         (void)BIO_flush(bio_s_out);
1946
1947                                         DH_free(dh);
1948                                         dh = dh2;
1949                                         }
1950                                 }
1951                         if (dh == NULL)
1952                                 SSL_CTX_set_dh_auto(ctx2, 1);
1953                         else if (!SSL_CTX_set_tmp_dh(ctx2,dh))
1954                                 {
1955                                 BIO_puts(bio_err, "Error setting temp DH parameters\n");
1956                                 ERR_print_errors(bio_err);
1957                                 DH_free(dh);
1958                                 goto end;
1959                                 }
1960                         }
1961 #endif
1962                 DH_free(dh);
1963                 }
1964 #endif
1965
1966         if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1967                 goto end;
1968 #ifndef OPENSSL_NO_TLSEXT
1969         if (s_serverinfo_file != NULL
1970             && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file))
1971                 {
1972                 ERR_print_errors(bio_err);
1973                 goto end;
1974                 }
1975 #endif
1976 #ifndef OPENSSL_NO_TLSEXT
1977         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2, NULL, build_chain))
1978                 goto end;
1979 #endif
1980         if (s_dcert != NULL)
1981                 {
1982                 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
1983                         goto end;
1984                 }
1985
1986 #ifndef OPENSSL_NO_RSA
1987 #if 1
1988         if (!no_tmp_rsa)
1989                 {
1990                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1991 #ifndef OPENSSL_NO_TLSEXT
1992                 if (ctx2)
1993                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1994 #endif
1995                 }
1996 #else
1997         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1998                 {
1999                 RSA *rsa;
2000
2001                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
2002                 BIO_flush(bio_s_out);
2003
2004                 rsa=RSA_generate_key(512,RSA_F4,NULL);
2005
2006                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
2007                         {
2008                         ERR_print_errors(bio_err);
2009                         goto end;
2010                         }
2011 #ifndef OPENSSL_NO_TLSEXT
2012                         if (ctx2)
2013                                 {
2014                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
2015                                         {
2016                                         ERR_print_errors(bio_err);
2017                                         goto end;
2018                                         }
2019                                 }
2020 #endif
2021                 RSA_free(rsa);
2022                 BIO_printf(bio_s_out,"\n");
2023                 }
2024 #endif
2025 #endif
2026
2027         if (no_resume_ephemeral)
2028                 {
2029                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
2030 #ifndef OPENSSL_NO_TLSEXT
2031                 if (ctx2)
2032                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
2033 #endif
2034                 }
2035
2036 #ifndef OPENSSL_NO_PSK
2037 #ifdef OPENSSL_NO_JPAKE
2038         if (psk_key != NULL)
2039 #else
2040         if (psk_key != NULL || jpake_secret)
2041 #endif
2042                 {
2043                 if (s_debug)
2044                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
2045                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2046                 }
2047
2048         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
2049                 {
2050                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
2051                 ERR_print_errors(bio_err);
2052                 goto end;
2053                 }
2054 #endif
2055
2056         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
2057         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
2058                 sizeof s_server_session_id_context);
2059
2060         /* Set DTLS cookie generation and verification callbacks */
2061         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2062         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2063
2064 #ifndef OPENSSL_NO_TLSEXT
2065         if (ctx2)
2066                 {
2067                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
2068                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
2069                         sizeof s_server_session_id_context);
2070
2071                 tlsextcbp.biodebug = bio_s_out;
2072                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2073                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2074                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2075                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2076                 }
2077 #endif
2078
2079 #ifndef OPENSSL_NO_SRP
2080         if (srp_verifier_file != NULL)
2081                 {
2082                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
2083                 srp_callback_parm.user = NULL;
2084                 srp_callback_parm.login = NULL;
2085                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
2086                         {
2087                         BIO_printf(bio_err,
2088                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
2089                                    srp_verifier_file, ret);
2090                                 goto end;
2091                         }
2092                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
2093                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
2094                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
2095                 }
2096         else
2097 #endif
2098         if (CAfile != NULL)
2099                 {
2100                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
2101 #ifndef OPENSSL_NO_TLSEXT
2102                 if (ctx2)
2103                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
2104 #endif
2105                 }
2106
2107         BIO_printf(bio_s_out,"ACCEPT\n");
2108         (void)BIO_flush(bio_s_out);
2109         if (rev)
2110                 server_cb = rev_body;
2111         else if (www)
2112                 server_cb = www_body;
2113         else
2114                 server_cb = sv_body;
2115 #ifndef NO_SYS_UN_H
2116         if (unix_path)
2117                 {
2118                 if (unlink_unix_path)
2119                         unlink(unix_path);
2120                 do_server_unix(unix_path,&accept_socket,server_cb, context, naccept);
2121                 }
2122         else
2123 #endif
2124                 do_server(port,socket_type,&accept_socket,server_cb, context, naccept);
2125         print_stats(bio_s_out,ctx);
2126         ret=0;
2127 end:
2128         if (ctx != NULL) SSL_CTX_free(ctx);
2129         if (s_cert)
2130                 X509_free(s_cert);
2131         if (crls)
2132                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2133         if (s_dcert)
2134                 X509_free(s_dcert);
2135         if (s_key)
2136                 EVP_PKEY_free(s_key);
2137         if (s_dkey)
2138                 EVP_PKEY_free(s_dkey);
2139         if (s_chain)
2140                 sk_X509_pop_free(s_chain, X509_free);
2141         if (s_dchain)
2142                 sk_X509_pop_free(s_dchain, X509_free);
2143         if (pass)
2144                 OPENSSL_free(pass);
2145         if (dpass)
2146                 OPENSSL_free(dpass);
2147         if (vpm)
2148                 X509_VERIFY_PARAM_free(vpm);
2149         free_sessions();
2150 #ifndef OPENSSL_NO_TLSEXT
2151         if (tlscstatp.host)
2152                 OPENSSL_free(tlscstatp.host);
2153         if (tlscstatp.port)
2154                 OPENSSL_free(tlscstatp.port);
2155         if (tlscstatp.path)
2156                 OPENSSL_free(tlscstatp.path);
2157         if (ctx2 != NULL) SSL_CTX_free(ctx2);
2158         if (s_cert2)
2159                 X509_free(s_cert2);
2160         if (s_key2)
2161                 EVP_PKEY_free(s_key2);
2162         if (serverinfo_in != NULL)
2163                 BIO_free(serverinfo_in);
2164 # ifndef OPENSSL_NO_NEXTPROTONEG
2165         if (next_proto.data)
2166                 OPENSSL_free(next_proto.data);
2167 # endif
2168         if (alpn_ctx.data)
2169                 OPENSSL_free(alpn_ctx.data);
2170 #endif
2171         ssl_excert_free(exc);
2172         if (ssl_args)
2173                 sk_OPENSSL_STRING_free(ssl_args);
2174         if (cctx)
2175                 SSL_CONF_CTX_free(cctx);
2176 #ifndef OPENSSL_NO_JPAKE
2177         if (jpake_secret && psk_key)
2178                 OPENSSL_free(psk_key);
2179 #endif
2180         if (bio_s_out != NULL)
2181                 {
2182                 BIO_free(bio_s_out);
2183                 bio_s_out=NULL;
2184                 }
2185         if (bio_s_msg != NULL)
2186                 {
2187                 BIO_free(bio_s_msg);
2188                 bio_s_msg = NULL;
2189                 }
2190         apps_shutdown();
2191         OPENSSL_EXIT(ret);
2192         }
2193
2194 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2195         {
2196         BIO_printf(bio,"%4ld items in the session cache\n",
2197                 SSL_CTX_sess_number(ssl_ctx));
2198         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
2199                 SSL_CTX_sess_connect(ssl_ctx));
2200         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
2201                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2202         BIO_printf(bio,"%4ld client connects that finished\n",
2203                 SSL_CTX_sess_connect_good(ssl_ctx));
2204         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
2205                 SSL_CTX_sess_accept(ssl_ctx));
2206         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
2207                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2208         BIO_printf(bio,"%4ld server accepts that finished\n",
2209                 SSL_CTX_sess_accept_good(ssl_ctx));
2210         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
2211         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
2212         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
2213         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
2214         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
2215                 SSL_CTX_sess_cache_full(ssl_ctx),
2216                 SSL_CTX_sess_get_cache_size(ssl_ctx));
2217         }
2218
2219 static int sv_body(char *hostname, int s, int stype, unsigned char *context)
2220         {
2221         char *buf=NULL;
2222         fd_set readfds;
2223         int ret=1,width;
2224         int k,i;
2225         unsigned long l;
2226         SSL *con=NULL;
2227         BIO *sbio;
2228 #ifndef OPENSSL_NO_KRB5
2229         KSSL_CTX *kctx;
2230 #endif
2231         struct timeval timeout;
2232 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2233         struct timeval tv;
2234 #else
2235         struct timeval *timeoutp;
2236 #endif
2237
2238         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
2239                 {
2240                 BIO_printf(bio_err,"out of memory\n");
2241                 goto err;
2242                 }
2243 #ifdef FIONBIO
2244         if (s_nbio)
2245                 {
2246                 unsigned long sl=1;
2247
2248                 if (!s_quiet)
2249                         BIO_printf(bio_err,"turning on non blocking io\n");
2250                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2251                         ERR_print_errors(bio_err);
2252                 }
2253 #endif
2254
2255         if (con == NULL) {
2256                 con=SSL_new(ctx);
2257 #ifndef OPENSSL_NO_TLSEXT
2258         if (s_tlsextdebug)
2259                 {
2260                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2261                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2262                 }
2263         if (s_tlsextstatus)
2264                 {
2265                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2266                 tlscstatp.err = bio_err;
2267                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2268                 }
2269 #endif
2270 #ifndef OPENSSL_NO_KRB5
2271                 if ((kctx = kssl_ctx_new()) != NULL)
2272                         {
2273                         SSL_set0_kssl_ctx(con, kctx);
2274                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2275                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2276                         }
2277 #endif  /* OPENSSL_NO_KRB5 */
2278                 if(context)
2279                       SSL_set_session_id_context(con, context,
2280                                                  strlen((char *)context));
2281         }
2282         SSL_clear(con);
2283 #if 0
2284 #ifdef TLSEXT_TYPE_opaque_prf_input
2285         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2286 #endif
2287 #endif
2288
2289         if (stype == SOCK_DGRAM)
2290                 {
2291
2292                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2293
2294                 if (enable_timeouts)
2295                         {
2296                         timeout.tv_sec = 0;
2297                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2298                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2299
2300                         timeout.tv_sec = 0;
2301                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2302                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2303                         }
2304
2305                 if (socket_mtu > 28)
2306                         {
2307                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2308                         SSL_set_mtu(con, socket_mtu - 28);
2309                         }
2310                 else
2311                         /* want to do MTU discovery */
2312                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2313
2314         /* turn on cookie exchange */
2315         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2316                 }
2317         else
2318                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2319
2320         if (s_nbio_test)
2321                 {
2322                 BIO *test;
2323
2324                 test=BIO_new(BIO_f_nbio_test());
2325                 sbio=BIO_push(test,sbio);
2326                 }
2327 #ifndef OPENSSL_NO_JPAKE
2328         if(jpake_secret)
2329                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2330 #endif
2331
2332         SSL_set_bio(con,sbio,sbio);
2333         SSL_set_accept_state(con);
2334         /* SSL_set_fd(con,s); */
2335
2336         if (s_debug)
2337                 {
2338                 SSL_set_debug(con, 1);
2339                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2340                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2341                 }
2342         if (s_msg)
2343                 {
2344 #ifndef OPENSSL_NO_SSL_TRACE
2345                 if (s_msg == 2)
2346                         SSL_set_msg_callback(con, SSL_trace);
2347                 else
2348 #endif
2349                         SSL_set_msg_callback(con, msg_cb);
2350                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2351                 }
2352 #ifndef OPENSSL_NO_TLSEXT
2353         if (s_tlsextdebug)
2354                 {
2355                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2356                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2357                 }
2358 #endif
2359
2360         width=s+1;
2361         for (;;)
2362                 {
2363                 int read_from_terminal;
2364                 int read_from_sslcon;
2365
2366                 read_from_terminal = 0;
2367                 read_from_sslcon = SSL_pending(con);
2368
2369                 if (!read_from_sslcon)
2370                         {
2371                         FD_ZERO(&readfds);
2372 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2373                         openssl_fdset(fileno(stdin),&readfds);
2374 #endif
2375                         openssl_fdset(s,&readfds);
2376                         /* Note: under VMS with SOCKETSHR the second parameter is
2377                          * currently of type (int *) whereas under other systems
2378                          * it is (void *) if you don't have a cast it will choke
2379                          * the compiler: if you do have a cast then you can either
2380                          * go for (int *) or (void *).
2381                          */
2382 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2383                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2384                          * on sockets. As a workaround we timeout the select every
2385                          * second and check for any keypress. In a proper Windows
2386                          * application we wouldn't do this because it is inefficient.
2387                          */
2388                         tv.tv_sec = 1;
2389                         tv.tv_usec = 0;
2390                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2391                         if((i < 0) || (!i && !_kbhit() ) )continue;
2392                         if(_kbhit())
2393                                 read_from_terminal = 1;
2394 #elif defined(OPENSSL_SYS_BEOS_R5)
2395                         /* Under BeOS-R5 the situation is similar to DOS */
2396                         tv.tv_sec = 1;
2397                         tv.tv_usec = 0;
2398                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2399                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2400                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2401                                 continue;
2402                         if (read(fileno(stdin), buf, 0) >= 0)
2403                                 read_from_terminal = 1;
2404                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2405 #else
2406                         if ((SSL_version(con) == DTLS1_VERSION) &&
2407                                 DTLSv1_get_timeout(con, &timeout))
2408                                 timeoutp = &timeout;
2409                         else
2410                                 timeoutp = NULL;
2411
2412                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2413
2414                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2415                                 {
2416                                 BIO_printf(bio_err,"TIMEOUT occurred\n");
2417                                 }
2418
2419                         if (i <= 0) continue;
2420                         if (FD_ISSET(fileno(stdin),&readfds))
2421                                 read_from_terminal = 1;
2422 #endif
2423                         if (FD_ISSET(s,&readfds))
2424                                 read_from_sslcon = 1;
2425                         }
2426                 if (read_from_terminal)
2427                         {
2428                         if (s_crlf)
2429                                 {
2430                                 int j, lf_num;
2431
2432                                 i=raw_read_stdin(buf, bufsize/2);
2433                                 lf_num = 0;
2434                                 /* both loops are skipped when i <= 0 */
2435                                 for (j = 0; j < i; j++)
2436                                         if (buf[j] == '\n')
2437                                                 lf_num++;
2438                                 for (j = i-1; j >= 0; j--)
2439                                         {
2440                                         buf[j+lf_num] = buf[j];
2441                                         if (buf[j] == '\n')
2442                                                 {
2443                                                 lf_num--;
2444                                                 i++;
2445                                                 buf[j+lf_num] = '\r';
2446                                                 }
2447                                         }
2448                                 assert(lf_num == 0);
2449                                 }
2450                         else
2451                                 i=raw_read_stdin(buf,bufsize);
2452                         if (!s_quiet && !s_brief)
2453                                 {
2454                                 if ((i <= 0) || (buf[0] == 'Q'))
2455                                         {
2456                                         BIO_printf(bio_s_out,"DONE\n");
2457                                         SHUTDOWN(s);
2458                                         close_accept_socket();
2459                                         ret= -11;
2460                                         goto err;
2461                                         }
2462                                 if ((i <= 0) || (buf[0] == 'q'))
2463                                         {
2464                                         BIO_printf(bio_s_out,"DONE\n");
2465                                         if (SSL_version(con) != DTLS1_VERSION)
2466                         SHUTDOWN(s);
2467         /*                              close_accept_socket();
2468                                         ret= -11;*/
2469                                         goto err;
2470                                         }
2471
2472 #ifndef OPENSSL_NO_HEARTBEATS
2473                                 if ((buf[0] == 'B') &&
2474                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2475                                         {
2476                                         BIO_printf(bio_err,"HEARTBEATING\n");
2477                                         SSL_heartbeat(con);
2478                                         i=0;
2479                                         continue;
2480                                         }
2481 #endif
2482                                 if ((buf[0] == 'r') &&
2483                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2484                                         {
2485                                         SSL_renegotiate(con);
2486                                         i=SSL_do_handshake(con);
2487                                         printf("SSL_do_handshake -> %d\n",i);
2488                                         i=0; /*13; */
2489                                         continue;
2490                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2491                                         }
2492                                 if ((buf[0] == 'R') &&
2493                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2494                                         {
2495                                         SSL_set_verify(con,
2496                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2497                                         SSL_renegotiate(con);
2498                                         i=SSL_do_handshake(con);
2499                                         printf("SSL_do_handshake -> %d\n",i);
2500                                         i=0; /* 13; */
2501                                         continue;
2502                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2503                                         }
2504                                 if (buf[0] == 'P')
2505                                         {
2506                                         static const char *str="Lets print some clear text\n";
2507                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2508                                         }
2509                                 if (buf[0] == 'S')
2510                                         {
2511                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2512                                         }
2513                                 }
2514 #ifdef CHARSET_EBCDIC
2515                         ebcdic2ascii(buf,buf,i);
2516 #endif
2517                         l=k=0;
2518                         for (;;)
2519                                 {
2520                                 /* should do a select for the write */
2521 #ifdef RENEG
2522 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2523 #endif
2524                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2525 #ifndef OPENSSL_NO_SRP
2526                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2527                                         {
2528                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2529                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2530                                         if (srp_callback_parm.user)
2531                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2532                                         else
2533                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2534                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2535                                         }
2536 #endif
2537                                 switch (SSL_get_error(con,k))
2538                                         {
2539                                 case SSL_ERROR_NONE:
2540                                         break;
2541                                 case SSL_ERROR_WANT_WRITE:
2542                                 case SSL_ERROR_WANT_READ:
2543                                 case SSL_ERROR_WANT_X509_LOOKUP:
2544                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2545                                         break;
2546                                 case SSL_ERROR_SYSCALL:
2547                                 case SSL_ERROR_SSL:
2548                                         BIO_printf(bio_s_out,"ERROR\n");
2549                                         ERR_print_errors(bio_err);
2550                                         ret=1;
2551                                         goto err;
2552                                         /* break; */
2553                                 case SSL_ERROR_ZERO_RETURN:
2554                                         BIO_printf(bio_s_out,"DONE\n");
2555                                         ret=1;
2556                                         goto err;
2557                                         }
2558                                 l+=k;
2559                                 i-=k;
2560                                 if (i <= 0) break;
2561                                 }
2562                         }
2563                 if (read_from_sslcon)
2564                         {
2565                         if (!SSL_is_init_finished(con))
2566                                 {
2567                                 i=init_ssl_connection(con);
2568
2569                                 if (i < 0)
2570                                         {
2571                                         ret=0;
2572                                         goto err;
2573                                         }
2574                                 else if (i == 0)
2575                                         {
2576                                         ret=1;
2577                                         goto err;
2578                                         }
2579                                 }
2580                         else
2581                                 {
2582 again:
2583                                 i=SSL_read(con,(char *)buf,bufsize);
2584 #ifndef OPENSSL_NO_SRP
2585                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2586                                         {
2587                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2588                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2589                                         if (srp_callback_parm.user)
2590                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2591                                         else
2592                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2593                                         i=SSL_read(con,(char *)buf,bufsize);
2594                                         }
2595 #endif
2596                                 switch (SSL_get_error(con,i))
2597                                         {
2598                                 case SSL_ERROR_NONE:
2599 #ifdef CHARSET_EBCDIC
2600                                         ascii2ebcdic(buf,buf,i);
2601 #endif
2602                                         raw_write_stdout(buf,
2603                                                 (unsigned int)i);
2604                                         if (SSL_pending(con)) goto again;
2605                                         break;
2606                                 case SSL_ERROR_WANT_WRITE:
2607                                 case SSL_ERROR_WANT_READ:
2608                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2609                                         break;
2610                                 case SSL_ERROR_SYSCALL:
2611                                 case SSL_ERROR_SSL:
2612                                         BIO_printf(bio_s_out,"ERROR\n");
2613                                         ERR_print_errors(bio_err);
2614                                         ret=1;
2615                                         goto err;
2616                                 case SSL_ERROR_ZERO_RETURN:
2617                                         BIO_printf(bio_s_out,"DONE\n");
2618                                         ret=1;
2619                                         goto err;
2620                                         }
2621                                 }
2622                         }
2623                 }
2624 err:
2625         if (con != NULL)
2626                 {
2627                 BIO_printf(bio_s_out,"shutting down SSL\n");
2628 #if 1
2629                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2630 #else
2631                 SSL_shutdown(con);
2632 #endif
2633                 SSL_free(con);
2634                 }
2635         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2636         if (buf != NULL)
2637                 {
2638                 OPENSSL_cleanse(buf,bufsize);
2639                 OPENSSL_free(buf);
2640                 }
2641         if (ret >= 0)
2642                 BIO_printf(bio_s_out,"ACCEPT\n");
2643         return(ret);
2644         }
2645
2646 static void close_accept_socket(void)
2647         {
2648         BIO_printf(bio_err,"shutdown accept socket\n");
2649         if (accept_socket >= 0)
2650                 {
2651                 SHUTDOWN2(accept_socket);
2652                 }
2653         }
2654
2655 static int init_ssl_connection(SSL *con)
2656         {
2657         int i;
2658         const char *str;
2659         X509 *peer;
2660         long verify_error;
2661         MS_STATIC char buf[BUFSIZ];
2662 #ifndef OPENSSL_NO_KRB5
2663         char *client_princ;
2664 #endif
2665 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2666         const unsigned char *next_proto_neg;
2667         unsigned next_proto_neg_len;
2668 #endif
2669         unsigned char *exportedkeymat;
2670
2671
2672         i=SSL_accept(con);
2673 #ifdef CERT_CB_TEST_RETRY
2674         {
2675         while (i <= 0 && SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP && SSL_state(con) == SSL3_ST_SR_CLNT_HELLO_C)
2676                 {
2677                 fprintf(stderr, "LOOKUP from certificate callback during accept\n");
2678                 i=SSL_accept(con);
2679                 }
2680         }
2681 #endif
2682 #ifndef OPENSSL_NO_SRP
2683         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2684                 {
2685                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2686                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2687                         if (srp_callback_parm.user)
2688                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2689                         else
2690                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2691                         i=SSL_accept(con);
2692                 }
2693 #endif
2694
2695         if (i <= 0)
2696                 {
2697                 if (BIO_sock_should_retry(i))
2698                         {
2699                         BIO_printf(bio_s_out,"DELAY\n");
2700                         return(1);
2701                         }
2702
2703                 BIO_printf(bio_err,"ERROR\n");
2704                 verify_error=SSL_get_verify_result(con);
2705                 if (verify_error != X509_V_OK)
2706                         {
2707                         BIO_printf(bio_err,"verify error:%s\n",
2708                                 X509_verify_cert_error_string(verify_error));
2709                         }
2710                 /* Always print any error messages */
2711                 ERR_print_errors(bio_err);
2712                 return(0);
2713                 }
2714
2715         if (s_brief)
2716                 print_ssl_summary(bio_err, con);
2717
2718         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2719
2720         peer=SSL_get_peer_certificate(con);
2721         if (peer != NULL)
2722                 {
2723                 BIO_printf(bio_s_out,"Client certificate\n");
2724                 PEM_write_bio_X509(bio_s_out,peer);
2725                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2726                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2727                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2728                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2729                 X509_free(peer);
2730                 }
2731
2732         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2733                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2734         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2735         ssl_print_sigalgs(bio_s_out, con);
2736 #ifndef OPENSSL_NO_EC
2737         ssl_print_point_formats(bio_s_out, con);
2738         ssl_print_curves(bio_s_out, con, 0);
2739 #endif
2740         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2741
2742 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2743         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2744         if (next_proto_neg)
2745                 {
2746                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2747                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2748                 BIO_printf(bio_s_out, "\n");
2749                 }
2750 #endif
2751         {
2752         SRTP_PROTECTION_PROFILE *srtp_profile
2753           = SSL_get_selected_srtp_profile(con);
2754
2755         if(srtp_profile)
2756                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2757                            srtp_profile->name);
2758         }
2759         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2760         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2761                 TLS1_FLAGS_TLS_PADDING_BUG)
2762                 BIO_printf(bio_s_out,
2763                            "Peer has incorrect TLSv1 block padding\n");
2764 #ifndef OPENSSL_NO_KRB5
2765         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2766         if (client_princ != NULL)
2767                 {
2768                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2769                                                                 client_princ);
2770                 }
2771 #endif /* OPENSSL_NO_KRB5 */
2772         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2773                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2774         if (keymatexportlabel != NULL)
2775                 {
2776                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2777                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2778                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2779                            keymatexportlen);
2780                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2781                 if (exportedkeymat != NULL)
2782                         {
2783                         if (!SSL_export_keying_material(con, exportedkeymat,
2784                                                         keymatexportlen,
2785                                                         keymatexportlabel,
2786                                                         strlen(keymatexportlabel),
2787                                                         NULL, 0, 0))
2788                                 {
2789                                 BIO_printf(bio_s_out, "    Error\n");
2790                                 }
2791                         else
2792                                 {
2793                                 BIO_printf(bio_s_out, "    Keying material: ");
2794                                 for (i=0; i<keymatexportlen; i++)
2795                                         BIO_printf(bio_s_out, "%02X",
2796                                                    exportedkeymat[i]);
2797                                 BIO_printf(bio_s_out, "\n");
2798                                 }
2799                         OPENSSL_free(exportedkeymat);
2800                         }
2801                 }
2802
2803         return(1);
2804         }
2805
2806 #ifndef OPENSSL_NO_DH
2807 static DH *load_dh_param(const char *dhfile)
2808         {
2809         DH *ret=NULL;
2810         BIO *bio;
2811
2812         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2813                 goto err;
2814         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2815 err:
2816         if (bio != NULL) BIO_free(bio);
2817         return(ret);
2818         }
2819 #endif
2820
2821 #if 0
2822 static int load_CA(SSL_CTX *ctx, char *file)
2823         {
2824         FILE *in;
2825         X509 *x=NULL;
2826
2827         if ((in=fopen(file,"r")) == NULL)
2828                 return(0);
2829
2830         for (;;)
2831                 {
2832                 if (PEM_read_X509(in,&x,NULL) == NULL)
2833                         break;
2834                 SSL_CTX_add_client_CA(ctx,x);
2835                 }
2836         if (x != NULL) X509_free(x);
2837         fclose(in);
2838         return(1);
2839         }
2840 #endif
2841
2842 static int www_body(char *hostname, int s, int stype, unsigned char *context)
2843         {
2844         char *buf=NULL;
2845         int ret=1;
2846         int i,j,k,dot;
2847         SSL *con;
2848         const SSL_CIPHER *c;
2849         BIO *io,*ssl_bio,*sbio;
2850 #ifndef OPENSSL_NO_KRB5
2851         KSSL_CTX *kctx;
2852 #endif
2853
2854         buf=OPENSSL_malloc(bufsize);
2855         if (buf == NULL) return(0);
2856         io=BIO_new(BIO_f_buffer());
2857         ssl_bio=BIO_new(BIO_f_ssl());
2858         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2859
2860 #ifdef FIONBIO
2861         if (s_nbio)
2862                 {
2863                 unsigned long sl=1;
2864
2865                 if (!s_quiet)
2866                         BIO_printf(bio_err,"turning on non blocking io\n");
2867                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2868                         ERR_print_errors(bio_err);
2869                 }
2870 #endif
2871
2872         /* lets make the output buffer a reasonable size */
2873         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2874
2875         if ((con=SSL_new(ctx)) == NULL) goto err;
2876 #ifndef OPENSSL_NO_TLSEXT
2877                 if (s_tlsextdebug)
2878                         {
2879                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2880                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2881                         }
2882 #endif
2883 #ifndef OPENSSL_NO_KRB5
2884         if ((kctx = kssl_ctx_new()) != NULL)
2885                 {
2886                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2887                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2888                 }
2889 #endif  /* OPENSSL_NO_KRB5 */
2890         if(context) SSL_set_session_id_context(con, context,
2891                                                strlen((char *)context));
2892
2893         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2894         if (s_nbio_test)
2895                 {
2896                 BIO *test;
2897
2898                 test=BIO_new(BIO_f_nbio_test());
2899                 sbio=BIO_push(test,sbio);
2900                 }
2901         SSL_set_bio(con,sbio,sbio);
2902         SSL_set_accept_state(con);
2903
2904         /* SSL_set_fd(con,s); */
2905         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2906         BIO_push(io,ssl_bio);
2907 #ifdef CHARSET_EBCDIC
2908         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2909 #endif
2910
2911         if (s_debug)
2912                 {
2913                 SSL_set_debug(con, 1);
2914                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2915                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2916                 }
2917         if (s_msg)
2918                 {
2919 #ifndef OPENSSL_NO_SSL_TRACE
2920                 if (s_msg == 2)
2921                         SSL_set_msg_callback(con, SSL_trace);
2922                 else
2923 #endif
2924                         SSL_set_msg_callback(con, msg_cb);
2925                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2926                 }
2927
2928         for (;;)
2929                 {
2930                 if (hack)
2931                         {
2932                         i=SSL_accept(con);
2933 #ifndef OPENSSL_NO_SRP
2934                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2935                 {
2936                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2937                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2938                         if (srp_callback_parm.user)
2939                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2940                         else
2941                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2942                         i=SSL_accept(con);
2943                 }
2944 #endif
2945                         switch (SSL_get_error(con,i))
2946                                 {
2947                         case SSL_ERROR_NONE:
2948                                 break;
2949                         case SSL_ERROR_WANT_WRITE:
2950                         case SSL_ERROR_WANT_READ:
2951                         case SSL_ERROR_WANT_X509_LOOKUP:
2952                                 continue;
2953                         case SSL_ERROR_SYSCALL:
2954                         case SSL_ERROR_SSL:
2955                         case SSL_ERROR_ZERO_RETURN:
2956                                 ret=1;
2957                                 goto err;
2958                                 /* break; */
2959                                 }
2960
2961                         SSL_renegotiate(con);
2962                         SSL_write(con,NULL,0);
2963                         }
2964
2965                 i=BIO_gets(io,buf,bufsize-1);
2966                 if (i < 0) /* error */
2967                         {
2968                         if (!BIO_should_retry(io))
2969                                 {
2970                                 if (!s_quiet)
2971                                         ERR_print_errors(bio_err);
2972                                 goto err;
2973                                 }
2974                         else
2975                                 {
2976                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2977 #if defined(OPENSSL_SYS_NETWARE)
2978             delay(1000);
2979 #elif !defined(OPENSSL_SYS_MSDOS)
2980                                 sleep(1);
2981 #endif
2982                                 continue;
2983                                 }
2984                         }
2985                 else if (i == 0) /* end of input */
2986                         {
2987                         ret=1;
2988                         goto end;
2989                         }
2990
2991                 /* else we have data */
2992                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2993                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2994                         {
2995                         char *p;
2996                         X509 *peer;
2997                         STACK_OF(SSL_CIPHER) *sk;
2998                         static const char *space="                          ";
2999
3000                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
3001                         {
3002                         if (strncmp("GET /renegcert", buf, 14) == 0)
3003                                 SSL_set_verify(con,
3004                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
3005                         i=SSL_renegotiate(con);
3006                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
3007                         i=SSL_do_handshake(con);
3008                         if (i <= 0)
3009                                 {
3010                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
3011                                 ERR_print_errors(bio_err);
3012                                 goto err;
3013                                 }
3014                         /* EVIL HACK! */
3015                         SSL_set_state(con, SSL_ST_ACCEPT);
3016                         i=SSL_do_handshake(con);
3017                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
3018                         if (i <= 0)
3019                                 {
3020                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
3021                                 ERR_print_errors(bio_err);
3022                                 goto err;
3023                                 }
3024                         }
3025
3026                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3027                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
3028                         BIO_puts(io,"<pre>\n");
3029 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
3030                         BIO_puts(io,"\n");
3031                         for (i=0; i<local_argc; i++)
3032                                 {
3033                                 BIO_puts(io,local_argv[i]);
3034                                 BIO_write(io," ",1);
3035                                 }
3036                         BIO_puts(io,"\n");
3037
3038                         BIO_printf(io,
3039                                 "Secure Renegotiation IS%s supported\n",
3040                                 SSL_get_secure_renegotiation_support(con) ?
3041                                                         "" : " NOT");
3042
3043                         /* The following is evil and should not really
3044                          * be done */
3045                         BIO_printf(io,"Ciphers supported in s_server binary\n");
3046                         sk=SSL_get_ciphers(con);
3047                         j=sk_SSL_CIPHER_num(sk);
3048                         for (i=0; i<j; i++)
3049                                 {
3050                                 c=sk_SSL_CIPHER_value(sk,i);
3051                                 BIO_printf(io,"%-11s:%-25s",
3052                                         SSL_CIPHER_get_version(c),
3053                                         SSL_CIPHER_get_name(c));
3054                                 if ((((i+1)%2) == 0) && (i+1 != j))
3055                                         BIO_puts(io,"\n");
3056                                 }
3057                         BIO_puts(io,"\n");
3058                         p=SSL_get_shared_ciphers(con,buf,bufsize);
3059                         if (p != NULL)
3060                                 {
3061                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
3062                                 j=i=0;
3063                                 while (*p)
3064                                         {
3065                                         if (*p == ':')
3066                                                 {
3067                                                 BIO_write(io,space,26-j);
3068                                                 i++;
3069                                                 j=0;
3070                                                 BIO_write(io,((i%3)?" ":"\n"),1);
3071                                                 }
3072                                         else
3073                                                 {
3074                                                 BIO_write(io,p,1);
3075                                                 j++;
3076                                                 }
3077                                         p++;
3078                                         }
3079                                 BIO_puts(io,"\n");
3080                                 }
3081                         ssl_print_sigalgs(io, con);
3082 #ifndef OPENSSL_NO_EC
3083                         ssl_print_curves(io, con, 0);
3084 #endif
3085                         BIO_printf(io,(SSL_cache_hit(con)
3086                                 ?"---\nReused, "
3087                                 :"---\nNew, "));
3088                         c=SSL_get_current_cipher(con);
3089                         BIO_printf(io,"%s, Cipher is %s\n",
3090                                 SSL_CIPHER_get_version(c),
3091                                 SSL_CIPHER_get_name(c));
3092                         SSL_SESSION_print(io,SSL_get_session(con));
3093                         BIO_printf(io,"---\n");
3094                         print_stats(io,SSL_get_SSL_CTX(con));
3095                         BIO_printf(io,"---\n");
3096                         peer=SSL_get_peer_certificate(con);
3097                         if (peer != NULL)
3098                                 {
3099                                 BIO_printf(io,"Client certificate\n");
3100                                 X509_print(io,peer);
3101                                 PEM_write_bio_X509(io,peer);
3102                                 }
3103                         else
3104                                 BIO_puts(io,"no client certificate available\n");
3105                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
3106                         break;
3107                         }
3108                 else if ((www == 2 || www == 3)
3109                          && (strncmp("GET /",buf,5) == 0))
3110                         {
3111                         BIO *file;
3112                         char *p,*e;
3113                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3114
3115                         /* skip the '/' */
3116                         p= &(buf[5]);
3117
3118                         dot = 1;
3119                         for (e=p; *e != '\0'; e++)
3120                                 {
3121                                 if (e[0] == ' ')
3122                                         break;
3123
3124                                 switch (dot)
3125                                         {
3126                                 case 1:
3127                                         dot = (e[0] == '.') ? 2 : 0;
3128                                         break;
3129                                 case 2:
3130                                         dot = (e[0] == '.') ? 3 : 0;
3131                                         break;
3132                                 case 3:
3133                                         dot = (e[0] == '/') ? -1 : 0;
3134                                         break;
3135                                         }
3136                                 if (dot == 0)
3137                                         dot = (e[0] == '/') ? 1 : 0;
3138                                 }
3139                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
3140
3141                         if (*e == '\0')
3142                                 {
3143                                 BIO_puts(io,text);
3144                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
3145                                 break;
3146                                 }
3147                         *e='\0';
3148
3149                         if (dot)
3150                                 {
3151                                 BIO_puts(io,text);
3152                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
3153                                 break;
3154                                 }
3155
3156                         if (*p == '/')
3157                                 {
3158                                 BIO_puts(io,text);
3159                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
3160                                 break;
3161                                 }
3162
3163 #if 0
3164                         /* append if a directory lookup */
3165                         if (e[-1] == '/')
3166                                 strcat(p,"index.html");
3167 #endif
3168
3169                         /* if a directory, do the index thang */
3170                         if (app_isdir(p)>0)
3171                                 {
3172 #if 0 /* must check buffer size */
3173                                 strcat(p,"/index.html");
3174 #else
3175                                 BIO_puts(io,text);
3176                                 BIO_printf(io,"'%s' is a directory\r\n",p);
3177                                 break;
3178 #endif
3179                                 }
3180
3181                         if ((file=BIO_new_file(p,"r")) == NULL)
3182                                 {
3183                                 BIO_puts(io,text);
3184                                 BIO_printf(io,"Error opening '%s'\r\n",p);
3185                                 ERR_print_errors(io);
3186                                 break;
3187                                 }
3188
3189                         if (!s_quiet)
3190                                 BIO_printf(bio_err,"FILE:%s\n",p);
3191
3192                         if (www == 2)
3193                                 {
3194                                 i=strlen(p);
3195                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
3196                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
3197                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
3198                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3199                                 else
3200                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3201                                 }
3202                         /* send the file */
3203                         for (;;)
3204                                 {
3205                                 i=BIO_read(file,buf,bufsize);
3206                                 if (i <= 0) break;
3207
3208 #ifdef RENEG
3209                                 total_bytes+=i;
3210                                 fprintf(stderr,"%d\n",i);
3211                                 if (total_bytes > 3*1024)
3212                                         {
3213                                         total_bytes=0;
3214                                         fprintf(stderr,"RENEGOTIATE\n");
3215                                         SSL_renegotiate(con);
3216                                         }
3217 #endif
3218
3219                                 for (j=0; j<i; )
3220                                         {
3221 #ifdef RENEG
3222 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
3223 #endif
3224                                         k=BIO_write(io,&(buf[j]),i-j);
3225                                         if (k <= 0)
3226                                                 {
3227                                                 if (!BIO_should_retry(io))
3228                                                         goto write_error;
3229                                                 else
3230                                                         {
3231                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
3232                                                         }
3233                                                 }
3234                                         else
3235                                                 {
3236                                                 j+=k;
3237                                                 }
3238                                         }
3239                                 }
3240 write_error:
3241                         BIO_free(file);
3242                         break;
3243                         }
3244                 }
3245
3246         for (;;)
3247                 {
3248                 i=(int)BIO_flush(io);
3249                 if (i <= 0)
3250                         {
3251                         if (!BIO_should_retry(io))
3252                                 break;
3253                         }
3254                 else
3255                         break;
3256                 }
3257 end:
3258 #if 1
3259         /* make sure we re-use sessions */
3260         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3261 #else
3262         /* This kills performance */
3263 /*      SSL_shutdown(con); A shutdown gets sent in the
3264  *      BIO_free_all(io) procession */
3265 #endif
3266
3267 err:
3268
3269         if (ret >= 0)
3270                 BIO_printf(bio_s_out,"ACCEPT\n");
3271
3272         if (buf != NULL) OPENSSL_free(buf);
3273         if (io != NULL) BIO_free_all(io);
3274 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3275         return(ret);
3276         }
3277
3278 static int rev_body(char *hostname, int s, int stype, unsigned char *context)
3279         {
3280         char *buf=NULL;
3281         int i;
3282         int ret=1;
3283         SSL *con;
3284         BIO *io,*ssl_bio,*sbio;
3285 #ifndef OPENSSL_NO_KRB5
3286         KSSL_CTX *kctx;
3287 #endif
3288
3289         buf=OPENSSL_malloc(bufsize);
3290         if (buf == NULL) return(0);
3291         io=BIO_new(BIO_f_buffer());
3292         ssl_bio=BIO_new(BIO_f_ssl());
3293         if ((io == NULL) || (ssl_bio == NULL)) goto err;
3294
3295         /* lets make the output buffer a reasonable size */
3296         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
3297
3298         if ((con=SSL_new(ctx)) == NULL) goto err;
3299 #ifndef OPENSSL_NO_TLSEXT
3300         if (s_tlsextdebug)
3301                 {
3302                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3303                 SSL_set_tlsext_debug_arg(con, bio_s_out);
3304                 }
3305 #endif
3306 #ifndef OPENSSL_NO_KRB5
3307         if ((kctx = kssl_ctx_new()) != NULL)
3308                 {
3309                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
3310                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
3311                 }
3312 #endif  /* OPENSSL_NO_KRB5 */
3313         if(context) SSL_set_session_id_context(con, context,
3314                                                strlen((char *)context));
3315
3316         sbio=BIO_new_socket(s,BIO_NOCLOSE);
3317         SSL_set_bio(con,sbio,sbio);
3318         SSL_set_accept_state(con);
3319
3320         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
3321         BIO_push(io,ssl_bio);
3322 #ifdef CHARSET_EBCDIC
3323         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
3324 #endif
3325
3326         if (s_debug)
3327                 {
3328                 SSL_set_debug(con, 1);
3329                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
3330                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
3331                 }
3332         if (s_msg)
3333                 {
3334 #ifndef OPENSSL_NO_SSL_TRACE
3335                 if (s_msg == 2)
3336                         SSL_set_msg_callback(con, SSL_trace);
3337                 else
3338 #endif
3339                         SSL_set_msg_callback(con, msg_cb);
3340                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3341                 }
3342
3343         for (;;)
3344                 {
3345                 i = BIO_do_handshake(io);
3346                 if (i > 0)
3347                         break;
3348                 if (!BIO_should_retry(io))
3349                         {
3350                         BIO_puts(bio_err, "CONNECTION FAILURE\n");
3351                         ERR_print_errors(bio_err);
3352                         goto end;
3353                         }
3354                 }
3355         BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3356         print_ssl_summary(bio_err, con);
3357
3358         for (;;)
3359                 {
3360                 i=BIO_gets(io,buf,bufsize-1);
3361                 if (i < 0) /* error */
3362                         {
3363                         if (!BIO_should_retry(io))
3364                                 {
3365                                 if (!s_quiet)
3366                                         ERR_print_errors(bio_err);
3367                                 goto err;
3368                                 }
3369                         else
3370                                 {
3371                                 BIO_printf(bio_s_out,"read R BLOCK\n");
3372 #if defined(OPENSSL_SYS_NETWARE)
3373             delay(1000);
3374 #elif !defined(OPENSSL_SYS_MSDOS)
3375                                 sleep(1);
3376 #endif
3377                                 continue;
3378                                 }
3379                         }
3380                 else if (i == 0) /* end of input */
3381                         {
3382                         ret=1;
3383                         BIO_printf(bio_err, "CONNECTION CLOSED\n");
3384                         goto end;
3385                         }
3386                 else
3387                         {
3388                         char *p = buf + i - 1;
3389                         while(i && (*p == '\n' || *p == '\r'))
3390                                 {
3391                                 p--;
3392                                 i--;
3393                                 }
3394                         if (!s_ign_eof && i == 5 && !strncmp(buf, "CLOSE", 5))
3395                                 {
3396                                 ret = 1;
3397                                 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3398                                 goto end;
3399                                 }
3400                         BUF_reverse((unsigned char *)buf, NULL, i);
3401                         buf[i] = '\n';
3402                         BIO_write(io, buf, i + 1);
3403                         for (;;)
3404                                 {
3405                                 i = BIO_flush(io);
3406                                 if (i > 0)
3407                                         break;
3408                                 if (!BIO_should_retry(io))
3409                                         goto end;
3410                                 }
3411                         }
3412                 }
3413 end:
3414         /* make sure we re-use sessions */
3415         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3416
3417 err:
3418
3419         if (buf != NULL) OPENSSL_free(buf);
3420         if (io != NULL) BIO_free_all(io);
3421         return(ret);
3422         }
3423
3424 #ifndef OPENSSL_NO_RSA
3425 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3426         {
3427         BIGNUM *bn = NULL;
3428         static RSA *rsa_tmp=NULL;
3429
3430         if (!rsa_tmp && ((bn = BN_new()) == NULL))
3431                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
3432         if (!rsa_tmp && bn)
3433                 {
3434                 if (!s_quiet)
3435                         {
3436                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
3437                         (void)BIO_flush(bio_err);
3438                         }
3439                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3440                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
3441                         {
3442                         if(rsa_tmp) RSA_free(rsa_tmp);
3443                         rsa_tmp = NULL;
3444                         }
3445                 if (!s_quiet)
3446                         {
3447                         BIO_printf(bio_err,"\n");
3448                         (void)BIO_flush(bio_err);
3449                         }
3450                 BN_free(bn);
3451                 }
3452         return(rsa_tmp);
3453         }
3454 #endif
3455
3456 #define MAX_SESSION_ID_ATTEMPTS 10
3457 static int generate_session_id(const SSL *ssl, unsigned char *id,
3458                                 unsigned int *id_len)
3459         {
3460         unsigned int count = 0;
3461         do      {
3462                 RAND_pseudo_bytes(id, *id_len);
3463                 /* Prefix the session_id with the required prefix. NB: If our
3464                  * prefix is too long, clip it - but there will be worse effects
3465                  * anyway, eg. the server could only possibly create 1 session
3466                  * ID (ie. the prefix!) so all future session negotiations will
3467                  * fail due to conflicts. */
3468                 memcpy(id, session_id_prefix,
3469                         (strlen(session_id_prefix) < *id_len) ?
3470                         strlen(session_id_prefix) : *id_len);
3471                 }
3472         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3473                 (++count < MAX_SESSION_ID_ATTEMPTS));
3474         if(count >= MAX_SESSION_ID_ATTEMPTS)
3475                 return 0;
3476         return 1;
3477         }
3478
3479 /* By default s_server uses an in-memory cache which caches SSL_SESSION
3480  * structures without any serialisation. This hides some bugs which only
3481  * become apparent in deployed servers. By implementing a basic external
3482  * session cache some issues can be debugged using s_server.
3483  */
3484
3485 typedef struct simple_ssl_session_st
3486         {
3487         unsigned char *id;
3488         unsigned int idlen;
3489         unsigned char *der;
3490         int derlen;
3491         struct simple_ssl_session_st *next;
3492         } simple_ssl_session;
3493
3494 static simple_ssl_session *first = NULL;
3495
3496 static int add_session(SSL *ssl, SSL_SESSION *session)
3497         {
3498         simple_ssl_session *sess;
3499         unsigned char *p;
3500
3501         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3502
3503         SSL_SESSION_get_id(session, &sess->idlen);
3504         sess->derlen = i2d_SSL_SESSION(session, NULL);
3505
3506         sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3507
3508         sess->der = OPENSSL_malloc(sess->derlen);
3509         p = sess->der;
3510         i2d_SSL_SESSION(session, &p);
3511
3512         sess->next = first;
3513         first = sess;
3514         BIO_printf(bio_err, "New session added to external cache\n");
3515         return 0;
3516         }
3517
3518 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3519                                         int *do_copy)
3520         {
3521         simple_ssl_session *sess;
3522         *do_copy = 0;
3523         for (sess = first; sess; sess = sess->next)
3524                 {
3525                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3526                         {
3527                         const unsigned char *p = sess->der;
3528                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3529                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3530                         }
3531                 }
3532         BIO_printf(bio_err, "Lookup session: cache miss\n");
3533         return NULL;
3534         }
3535
3536 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3537         {
3538         simple_ssl_session *sess, *prev = NULL;
3539         const unsigned char *id;
3540         unsigned int idlen;
3541         id = SSL_SESSION_get_id(session, &idlen);
3542         for (sess = first; sess; sess = sess->next)
3543                 {
3544                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
3545                         {
3546                         if(prev)
3547                                 prev->next = sess->next;
3548                         else
3549                                 first = sess->next;
3550                         OPENSSL_free(sess->id);
3551                         OPENSSL_free(sess->der);
3552                         OPENSSL_free(sess);
3553                         return;
3554                         }
3555                 prev = sess;
3556                 }
3557         }
3558
3559 static void init_session_cache_ctx(SSL_CTX *sctx)
3560         {
3561         SSL_CTX_set_session_cache_mode(sctx,
3562                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
3563         SSL_CTX_sess_set_new_cb(sctx, add_session);
3564         SSL_CTX_sess_set_get_cb(sctx, get_session);
3565         SSL_CTX_sess_set_remove_cb(sctx, del_session);
3566         }
3567
3568 static void free_sessions(void)
3569         {
3570         simple_ssl_session *sess, *tsess;
3571         for (sess = first; sess;)
3572                 {
3573                 OPENSSL_free(sess->id);
3574                 OPENSSL_free(sess->der);
3575                 tsess = sess;
3576                 sess = sess->next;
3577                 OPENSSL_free(tsess);
3578                 }
3579         first = NULL;
3580         }