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, unsigned char *context);
 209 static int www_body(char *hostname, int s, unsigned char *context);
 210 static void close_accept_socket(void );
 211 static void sv_usage(void);
 212 static int init_ssl_connection(SSL *s);
 213 static void print_stats(BIO *bp,SSL_CTX *ctx);
 214 static int generate_session_id(const SSL *ssl, unsigned char *id,
 215                                 unsigned int *id_len);
 216 static void init_session_cache_ctx(SSL_CTX *sctx);
 217 static void free_sessions(void);
 218 #ifndef OPENSSL_NO_DH
 219 static DH *load_dh_param(const char *dhfile);
 220 static DH *get_dh512(void);
 221 #endif
 222
 223 #ifdef MONOLITH
 224 static void s_server_init(void);
 225 #endif
 226
 227 #ifndef OPENSSL_NO_DH
 228 static unsigned char dh512_p[]={
 229         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 230         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 231         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 232         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 233         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 234         0x47,0x74,0xE8,0x33,
 235         };
 236 static unsigned char dh512_g[]={
 237         0x02,
 238         };
 239
 240 static DH *get_dh512(void)
 241         {
 242         DH *dh=NULL;
 243
 244         if ((dh=DH_new()) == NULL) return(NULL);
 245         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 246         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 247         if ((dh->p == NULL) || (dh->g == NULL))
 248                 return(NULL);
 249         return(dh);
 250         }
 251 #endif
 252
 253
 254 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 255
 256 #undef BUFSIZZ
 257 #define BUFSIZZ 16*1024
 258 static int bufsize=BUFSIZZ;
 259 static int accept_socket= -1;
 260
 261 #define TEST_CERT       "server.pem"
 262 #ifndef OPENSSL_NO_TLSEXT
 263 #define TEST_CERT2      "server2.pem"
 264 #endif
 265 #undef PROG
 266 #define PROG            s_server_main
 267
 268 extern int verify_depth, verify_return_error;
 269
 270 static char *cipher=NULL;
 271 static int s_server_verify=SSL_VERIFY_NONE;
 272 static int s_server_session_id_context = 1; /* anything will do */
 273 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL, *s_chain_file=NULL;
 274 #ifndef OPENSSL_NO_TLSEXT
 275 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
 276 static char *curves=NULL;
 277 static char *sigalgs=NULL;
 278 static char *client_sigalgs=NULL;
 279 #endif
 280 static char *s_dcert_file=NULL,*s_dkey_file=NULL, *s_dchain_file=NULL;
 281 #ifdef FIONBIO
 282 static int s_nbio=0;
 283 #endif
 284 static int s_nbio_test=0;
 285 int s_crlf=0;
 286 static SSL_CTX *ctx=NULL;
 287 #ifndef OPENSSL_NO_TLSEXT
 288 static SSL_CTX *ctx2=NULL;
 289 #endif
 290 static int www=0;
 291
 292 static BIO *bio_s_out=NULL;
 293 static BIO *bio_s_msg = NULL;
 294 static int s_debug=0;
 295 #ifndef OPENSSL_NO_TLSEXT
 296 static int s_tlsextdebug=0;
 297 static int s_tlsextstatus=0;
 298 static int cert_status_cb(SSL *s, void *arg);
 299 #endif
 300 static int no_resume_ephemeral = 0;
 301 static int s_msg=0;
 302 static int s_quiet=0;
 303
 304 static char *keymatexportlabel=NULL;
 305 static int keymatexportlen=20;
 306
 307 static int hack=0;
 308 #ifndef OPENSSL_NO_ENGINE
 309 static char *engine_id=NULL;
 310 #endif
 311 static const char *session_id_prefix=NULL;
 312
 313 static int enable_timeouts = 0;
 314 static long socket_mtu;
 315 #ifndef OPENSSL_NO_DTLS1
 316 static int cert_chain = 0;
 317 #endif
 318
 319 #ifndef OPENSSL_NO_TLSEXT
 320 static BIO *authz_in = NULL;
 321 static const char *s_authz_file = NULL;
 322 #endif
 323
 324 #ifndef OPENSSL_NO_PSK
 325 static char *psk_identity="Client_identity";
 326 char *psk_key=NULL; /* by default PSK is not used */
 327
 328 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
 329         unsigned char *psk, unsigned int max_psk_len)
 330         {
 331         unsigned int psk_len = 0;
 332         int ret;
 333         BIGNUM *bn = NULL;
 334
 335         if (s_debug)
 336                 BIO_printf(bio_s_out,"psk_server_cb\n");
 337         if (!identity)
 338                 {
 339                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
 340                 goto out_err;
 341                 }
 342         if (s_debug)
 343                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
 344                         identity ? (int)strlen(identity) : 0, identity);
 345
 346         /* here we could lookup the given identity e.g. from a database */
 347         if (strcmp(identity, psk_identity) != 0)
 348                 {
 349                 BIO_printf(bio_s_out, "PSK error: client identity not found"
 350                            " (got '%s' expected '%s')\n", identity,
 351                            psk_identity);
 352                 goto out_err;
 353                 }
 354         if (s_debug)
 355                 BIO_printf(bio_s_out, "PSK client identity found\n");
 356
 357         /* convert the PSK key to binary */
 358         ret = BN_hex2bn(&bn, psk_key);
 359         if (!ret)
 360                 {
 361                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 362                 if (bn)
 363                         BN_free(bn);
 364                 return 0;
 365                 }
 366         if (BN_num_bytes(bn) > (int)max_psk_len)
 367                 {
 368                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 369                         max_psk_len, BN_num_bytes(bn));
 370                 BN_free(bn);
 371                 return 0;
 372                 }
 373
 374         ret = BN_bn2bin(bn, psk);
 375         BN_free(bn);
 376
 377         if (ret < 0)
 378                 goto out_err;
 379         psk_len = (unsigned int)ret;
 380
 381         if (s_debug)
 382                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
 383         return psk_len;
 384  out_err:
 385         if (s_debug)
 386                 BIO_printf(bio_err, "Error in PSK server callback\n");
 387         return 0;
 388         }
 389 #endif
 390
 391 #ifndef OPENSSL_NO_SRP
 392 /* This is a context that we pass to callbacks */
 393 typedef struct srpsrvparm_st
 394         {
 395         char *login;
 396         SRP_VBASE *vb;
 397         SRP_user_pwd *user;
 398         } srpsrvparm;
 399
 400 /* This callback pretends to require some asynchronous logic in order to obtain
 401    a verifier. When the callback is called for a new connection we return
 402    with a negative value. This will provoke the accept etc to return with
 403    an LOOKUP_X509. The main logic of the reinvokes the suspended call
 404    (which would normally occur after a worker has finished) and we
 405    set the user parameters.
 406 */
 407 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
 408         {
 409         srpsrvparm *p = (srpsrvparm *)arg;
 410         if (p->login == NULL && p->user == NULL )
 411                 {
 412                 p->login = SSL_get_srp_username(s);
 413                 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
 414                 return (-1) ;
 415                 }
 416
 417         if (p->user == NULL)
 418                 {
 419                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
 420                 return SSL3_AL_FATAL;
 421                 }
 422         if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
 423                                      p->user->info) < 0)
 424                 {
 425                 *ad = SSL_AD_INTERNAL_ERROR;
 426                 return SSL3_AL_FATAL;
 427                 }
 428         BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
 429         /* need to check whether there are memory leaks */
 430         p->user = NULL;
 431         p->login = NULL;
 432         return SSL_ERROR_NONE;
 433         }
 434
 435 #endif
 436
 437 #ifdef MONOLITH
 438 static void s_server_init(void)
 439         {
 440         accept_socket=-1;
 441         cipher=NULL;
 442         s_server_verify=SSL_VERIFY_NONE;
 443         s_dcert_file=NULL;
 444         s_dkey_file=NULL;
 445         s_dchain_file=NULL;
 446         s_cert_file=TEST_CERT;
 447         s_key_file=NULL;
 448         s_chain_file=NULL;
 449 #ifndef OPENSSL_NO_TLSEXT
 450         curves=NULL;
 451         s_cert_file2=TEST_CERT2;
 452         s_key_file2=NULL;
 453         ctx2=NULL;
 454 #endif
 455 #ifdef FIONBIO
 456         s_nbio=0;
 457 #endif
 458         s_nbio_test=0;
 459         ctx=NULL;
 460         www=0;
 461
 462         bio_s_out=NULL;
 463         s_debug=0;
 464         s_msg=0;
 465         s_quiet=0;
 466         hack=0;
 467 #ifndef OPENSSL_NO_ENGINE
 468         engine_id=NULL;
 469 #endif
 470         }
 471 #endif
 472
 473 static void sv_usage(void)
 474         {
 475         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 476         BIO_printf(bio_err,"\n");
 477         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 478         BIO_printf(bio_err," -context arg  - set session ID context\n");
 479         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 480         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 481         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 482         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 483         BIO_printf(bio_err," -authz arg   -  binary authz file for certificate\n");
 484         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
 485                            "                 The CRL(s) are appended to the certificate file\n");
 486         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
 487                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
 488                            "                 the certificate file.\n");
 489         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 490         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 491         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 492         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 493         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 494         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 495         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 496         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 497         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 498         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 499         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 500         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 501 #ifndef OPENSSL_NO_ECDH
 502         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 503                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 504                            "                 (default is nistp256).\n");
 505 #endif
 506 #ifdef FIONBIO
 507         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 508 #endif
 509         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 510         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 511         BIO_printf(bio_err," -debug        - Print more output\n");
 512         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 513         BIO_printf(bio_err," -state        - Print the SSL states\n");
 514         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 515         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 516         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 517         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 518         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 519         BIO_printf(bio_err," -quiet        - No server output\n");
 520         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 521 #ifndef OPENSSL_NO_PSK
 522         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
 523         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 524 # ifndef OPENSSL_NO_JPAKE
 525         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 526 # endif
 527 #endif
 528 #ifndef OPENSSL_NO_SRP
 529         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
 530         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
 531 #endif
 532         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 533         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 534         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
 535         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
 536         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 537         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 538         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 539         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
 540         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 541         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 542         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 543         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 544         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
 545         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
 546 #ifndef OPENSSL_NO_DH
 547         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 548 #endif
 549 #ifndef OPENSSL_NO_ECDH
 550         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 551 #endif
 552         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
 553         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 554         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 555         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 556         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 557         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 558 #ifndef OPENSSL_NO_ENGINE
 559         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 560 #endif
 561         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 562         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 563 #ifndef OPENSSL_NO_TLSEXT
 564         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 565         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
 566         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 567         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 568         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 569         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 570         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
 571         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
 572         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 573 # ifndef OPENSSL_NO_NEXTPROTONEG
 574         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
 575 # endif
 576         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 577 #endif
 578         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 579         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 580         }
 581
 582 static int local_argc=0;
 583 static char **local_argv;
 584
 585 #ifdef CHARSET_EBCDIC
 586 static int ebcdic_new(BIO *bi);
 587 static int ebcdic_free(BIO *a);
 588 static int ebcdic_read(BIO *b, char *out, int outl);
 589 static int ebcdic_write(BIO *b, const char *in, int inl);
 590 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 591 static int ebcdic_gets(BIO *bp, char *buf, int size);
 592 static int ebcdic_puts(BIO *bp, const char *str);
 593
 594 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 595 static BIO_METHOD methods_ebcdic=
 596         {
 597         BIO_TYPE_EBCDIC_FILTER,
 598         "EBCDIC/ASCII filter",
 599         ebcdic_write,
 600         ebcdic_read,
 601         ebcdic_puts,
 602         ebcdic_gets,
 603         ebcdic_ctrl,
 604         ebcdic_new,
 605         ebcdic_free,
 606         };
 607
 608 typedef struct
 609 {
 610         size_t  alloced;
 611         char    buff[1];
 612 } EBCDIC_OUTBUFF;
 613
 614 BIO_METHOD *BIO_f_ebcdic_filter()
 615 {
 616         return(&methods_ebcdic);
 617 }
 618
 619 static int ebcdic_new(BIO *bi)
 620 {
 621         EBCDIC_OUTBUFF *wbuf;
 622
 623         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 624         wbuf->alloced = 1024;
 625         wbuf->buff[0] = '\0';
 626
 627         bi->ptr=(char *)wbuf;
 628         bi->init=1;
 629         bi->flags=0;
 630         return(1);
 631 }
 632
 633 static int ebcdic_free(BIO *a)
 634 {
 635         if (a == NULL) return(0);
 636         if (a->ptr != NULL)
 637                 OPENSSL_free(a->ptr);
 638         a->ptr=NULL;
 639         a->init=0;
 640         a->flags=0;
 641         return(1);
 642 }
 643
 644 static int ebcdic_read(BIO *b, char *out, int outl)
 645 {
 646         int ret=0;
 647
 648         if (out == NULL || outl == 0) return(0);
 649         if (b->next_bio == NULL) return(0);
 650
 651         ret=BIO_read(b->next_bio,out,outl);
 652         if (ret > 0)
 653                 ascii2ebcdic(out,out,ret);
 654         return(ret);
 655 }
 656
 657 static int ebcdic_write(BIO *b, const char *in, int inl)
 658 {
 659         EBCDIC_OUTBUFF *wbuf;
 660         int ret=0;
 661         int num;
 662         unsigned char n;
 663
 664         if ((in == NULL) || (inl <= 0)) return(0);
 665         if (b->next_bio == NULL) return(0);
 666
 667         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 668
 669         if (inl > (num = wbuf->alloced))
 670         {
 671                 num = num + num;  /* double the size */
 672                 if (num < inl)
 673                         num = inl;
 674                 OPENSSL_free(wbuf);
 675                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 676
 677                 wbuf->alloced = num;
 678                 wbuf->buff[0] = '\0';
 679
 680                 b->ptr=(char *)wbuf;
 681         }
 682
 683         ebcdic2ascii(wbuf->buff, in, inl);
 684
 685         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 686
 687         return(ret);
 688 }
 689
 690 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 691 {
 692         long ret;
 693
 694         if (b->next_bio == NULL) return(0);
 695         switch (cmd)
 696         {
 697         case BIO_CTRL_DUP:
 698                 ret=0L;
 699                 break;
 700         default:
 701                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 702                 break;
 703         }
 704         return(ret);
 705 }
 706
 707 static int ebcdic_gets(BIO *bp, char *buf, int size)
 708 {
 709         int i, ret=0;
 710         if (bp->next_bio == NULL) return(0);
 711 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 712         for (i=0; i<size-1; ++i)
 713         {
 714                 ret = ebcdic_read(bp,&buf[i],1);
 715                 if (ret <= 0)
 716                         break;
 717                 else if (buf[i] == '\n')
 718                 {
 719                         ++i;
 720                         break;
 721                 }
 722         }
 723         if (i < size)
 724                 buf[i] = '\0';
 725         return (ret < 0 && i == 0) ? ret : i;
 726 }
 727
 728 static int ebcdic_puts(BIO *bp, const char *str)
 729 {
 730         if (bp->next_bio == NULL) return(0);
 731         return ebcdic_write(bp, str, strlen(str));
 732 }
 733 #endif
 734
 735 #ifndef OPENSSL_NO_TLSEXT
 736
 737 /* This is a context that we pass to callbacks */
 738 typedef struct tlsextctx_st {
 739    char * servername;
 740    BIO * biodebug;
 741    int extension_error;
 742 } tlsextctx;
 743
 744
 745 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 746         {
 747         tlsextctx * p = (tlsextctx *) arg;
 748         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 749         if (servername && p->biodebug)
 750                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 751
 752         if (!p->servername)
 753                 return SSL_TLSEXT_ERR_NOACK;
 754
 755         if (servername)
 756                 {
 757                 if (strcmp(servername,p->servername))
 758                         return p->extension_error;
 759                 if (ctx2)
 760                         {
 761                         BIO_printf(p->biodebug,"Switching server context.\n");
 762                         SSL_set_SSL_CTX(s,ctx2);
 763                         }
 764                 }
 765         return SSL_TLSEXT_ERR_OK;
 766 }
 767
 768 /* Structure passed to cert status callback */
 769
 770 typedef struct tlsextstatusctx_st {
 771    /* Default responder to use */
 772    char *host, *path, *port;
 773    int use_ssl;
 774    int timeout;
 775    BIO *err;
 776    int verbose;
 777 } tlsextstatusctx;
 778
 779 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
 780
 781 /* Certificate Status callback. This is called when a client includes a
 782  * certificate status request extension.
 783  *
 784  * This is a simplified version. It examines certificates each time and
 785  * makes one OCSP responder query for each request.
 786  *
 787  * A full version would store details such as the OCSP certificate IDs and
 788  * minimise the number of OCSP responses by caching them until they were
 789  * considered "expired".
 790  */
 791
 792 static int cert_status_cb(SSL *s, void *arg)
 793         {
 794         tlsextstatusctx *srctx = arg;
 795         BIO *err = srctx->err;
 796         char *host, *port, *path;
 797         int use_ssl;
 798         unsigned char *rspder = NULL;
 799         int rspderlen;
 800         STACK_OF(OPENSSL_STRING) *aia = NULL;
 801         X509 *x = NULL;
 802         X509_STORE_CTX inctx;
 803         X509_OBJECT obj;
 804         OCSP_REQUEST *req = NULL;
 805         OCSP_RESPONSE *resp = NULL;
 806         OCSP_CERTID *id = NULL;
 807         STACK_OF(X509_EXTENSION) *exts;
 808         int ret = SSL_TLSEXT_ERR_NOACK;
 809         int i;
 810 #if 0
 811 STACK_OF(OCSP_RESPID) *ids;
 812 SSL_get_tlsext_status_ids(s, &ids);
 813 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
 814 #endif
 815         if (srctx->verbose)
 816                 BIO_puts(err, "cert_status: callback called\n");
 817         /* Build up OCSP query from server certificate */
 818         x = SSL_get_certificate(s);
 819         aia = X509_get1_ocsp(x);
 820         if (aia)
 821                 {
 822                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
 823                         &host, &port, &path, &use_ssl))
 824                         {
 825                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
 826                         goto err;
 827                         }
 828                 if (srctx->verbose)
 829                         BIO_printf(err, "cert_status: AIA URL: %s\n",
 830                                         sk_OPENSSL_STRING_value(aia, 0));
 831                 }
 832         else
 833                 {
 834                 if (!srctx->host)
 835                         {
 836                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
 837                         goto done;
 838                         }
 839                 host = srctx->host;
 840                 path = srctx->path;
 841                 port = srctx->port;
 842                 use_ssl = srctx->use_ssl;
 843                 }
 844
 845         if (!X509_STORE_CTX_init(&inctx,
 846                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
 847                                 NULL, NULL))
 848                 goto err;
 849         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
 850                                 X509_get_issuer_name(x),&obj) <= 0)
 851                 {
 852                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
 853                 X509_STORE_CTX_cleanup(&inctx);
 854                 goto done;
 855                 }
 856         req = OCSP_REQUEST_new();
 857         if (!req)
 858                 goto err;
 859         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
 860         X509_free(obj.data.x509);
 861         X509_STORE_CTX_cleanup(&inctx);
 862         if (!id)
 863                 goto err;
 864         if (!OCSP_request_add0_id(req, id))
 865                 goto err;
 866         id = NULL;
 867         /* Add any extensions to the request */
 868         SSL_get_tlsext_status_exts(s, &exts);
 869         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
 870                 {
 871                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
 872                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
 873                         goto err;
 874                 }
 875         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
 876                                         srctx->timeout);
 877         if (!resp)
 878                 {
 879                 BIO_puts(err, "cert_status: error querying responder\n");
 880                 goto done;
 881                 }
 882         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
 883         if (rspderlen <= 0)
 884                 goto err;
 885         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
 886         if (srctx->verbose)
 887                 {
 888                 BIO_puts(err, "cert_status: ocsp response sent:\n");
 889                 OCSP_RESPONSE_print(err, resp, 2);
 890                 }
 891         ret = SSL_TLSEXT_ERR_OK;
 892         done:
 893         if (ret != SSL_TLSEXT_ERR_OK)
 894                 ERR_print_errors(err);
 895         if (aia)
 896                 {
 897                 OPENSSL_free(host);
 898                 OPENSSL_free(path);
 899                 OPENSSL_free(port);
 900                 X509_email_free(aia);
 901                 }
 902         if (id)
 903                 OCSP_CERTID_free(id);
 904         if (req)
 905                 OCSP_REQUEST_free(req);
 906         if (resp)
 907                 OCSP_RESPONSE_free(resp);
 908         return ret;
 909         err:
 910         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
 911         goto done;
 912         }
 913
 914 # ifndef OPENSSL_NO_NEXTPROTONEG
 915 /* This is the context that we pass to next_proto_cb */
 916 typedef struct tlsextnextprotoctx_st {
 917         unsigned char *data;
 918         unsigned int len;
 919 } tlsextnextprotoctx;
 920
 921 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
 922         {
 923         tlsextnextprotoctx *next_proto = arg;
 924
 925         *data = next_proto->data;
 926         *len = next_proto->len;
 927
 928         return SSL_TLSEXT_ERR_OK;
 929         }
 930 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 931 #endif
 932
 933 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
 934         {
 935         /* disable resumption for sessions with forward secure ciphers */
 936         return is_forward_secure;
 937         }
 938
 939 int MAIN(int, char **);
 940
 941 #ifndef OPENSSL_NO_JPAKE
 942 static char *jpake_secret = NULL;
 943 #endif
 944 #ifndef OPENSSL_NO_SRP
 945         static srpsrvparm srp_callback_parm;
 946 #endif
 947 static char *srtp_profiles = NULL;
 948
 949 int MAIN(int argc, char *argv[])
 950         {
 951         X509_VERIFY_PARAM *vpm = NULL;
 952         int badarg = 0;
 953         short port=PORT;
 954         char *CApath=NULL,*CAfile=NULL;
 955         unsigned char *context = NULL;
 956         char *dhfile = NULL;
 957 #ifndef OPENSSL_NO_ECDH
 958         char *named_curve = NULL;
 959 #endif
 960         int badop=0,bugs=0;
 961         int ret=1;
 962         int off=0;
 963         int cert_flags = 0;
 964         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
 965         int state=0;
 966         const SSL_METHOD *meth=NULL;
 967         int socket_type=SOCK_STREAM;
 968         ENGINE *e=NULL;
 969         char *inrand=NULL;
 970         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
 971         char *passarg = NULL, *pass = NULL;
 972         char *dpassarg = NULL, *dpass = NULL;
 973         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
 974         X509 *s_cert = NULL, *s_dcert = NULL;
 975         STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
 976         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
 977         int no_cache = 0, ext_cache = 0;
 978 #ifndef OPENSSL_NO_TLSEXT
 979         EVP_PKEY *s_key2 = NULL;
 980         X509 *s_cert2 = NULL;
 981         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
 982 # ifndef OPENSSL_NO_NEXTPROTONEG
 983         const char *next_proto_neg_in = NULL;
 984         tlsextnextprotoctx next_proto;
 985 # endif
 986 #endif
 987 #ifndef OPENSSL_NO_PSK
 988         /* by default do not send a PSK identity hint */
 989         static char *psk_identity_hint=NULL;
 990 #endif
 991 #ifndef OPENSSL_NO_SRP
 992         char *srpuserseed = NULL;
 993         char *srp_verifier_file = NULL;
 994 #endif
 995         SSL_EXCERT *exc = NULL;
 996         meth=SSLv23_server_method();
 997
 998         local_argc=argc;
 999         local_argv=argv;
1000
1001         apps_startup();
1002 #ifdef MONOLITH
1003         s_server_init();
1004 #endif
1005
1006         if (bio_err == NULL)
1007                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
1008
1009         if (!load_config(bio_err, NULL))
1010                 goto end;
1011
1012         verify_depth=0;
1013 #ifdef FIONBIO
1014         s_nbio=0;
1015 #endif
1016         s_nbio_test=0;
1017
1018         argc--;
1019         argv++;
1020
1021         while (argc >= 1)
1022                 {
1023                 if      ((strcmp(*argv,"-port") == 0) ||
1024                          (strcmp(*argv,"-accept") == 0))
1025                         {
1026                         if (--argc < 1) goto bad;
1027                         if (!extract_port(*(++argv),&port))
1028                                 goto bad;
1029                         }
1030                 else if (strcmp(*argv,"-verify") == 0)
1031                         {
1032                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1033                         if (--argc < 1) goto bad;
1034                         verify_depth=atoi(*(++argv));
1035                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1036                         }
1037                 else if (strcmp(*argv,"-Verify") == 0)
1038                         {
1039                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1040                                 SSL_VERIFY_CLIENT_ONCE;
1041                         if (--argc < 1) goto bad;
1042                         verify_depth=atoi(*(++argv));
1043                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1044                         }
1045                 else if (strcmp(*argv,"-context") == 0)
1046                         {
1047                         if (--argc < 1) goto bad;
1048                         context= (unsigned char *)*(++argv);
1049                         }
1050                 else if (strcmp(*argv,"-cert") == 0)
1051                         {
1052                         if (--argc < 1) goto bad;
1053                         s_cert_file= *(++argv);
1054                         }
1055 #ifndef OPENSSL_NO_TLSEXT
1056                 else if (strcmp(*argv,"-authz") == 0)
1057                         {
1058                         if (--argc < 1) goto bad;
1059                         s_authz_file = *(++argv);
1060                         }
1061 #endif
1062                 else if (strcmp(*argv,"-certform") == 0)
1063                         {
1064                         if (--argc < 1) goto bad;
1065                         s_cert_format = str2fmt(*(++argv));
1066                         }
1067                 else if (strcmp(*argv,"-key") == 0)
1068                         {
1069                         if (--argc < 1) goto bad;
1070                         s_key_file= *(++argv);
1071                         }
1072                 else if (strcmp(*argv,"-keyform") == 0)
1073                         {
1074                         if (--argc < 1) goto bad;
1075                         s_key_format = str2fmt(*(++argv));
1076                         }
1077                 else if (strcmp(*argv,"-pass") == 0)
1078                         {
1079                         if (--argc < 1) goto bad;
1080                         passarg = *(++argv);
1081                         }
1082                 else if (strcmp(*argv,"-cert_chain") == 0)
1083                         {
1084                         if (--argc < 1) goto bad;
1085                         s_chain_file= *(++argv);
1086                         }
1087                 else if (strcmp(*argv,"-dhparam") == 0)
1088                         {
1089                         if (--argc < 1) goto bad;
1090                         dhfile = *(++argv);
1091                         }
1092 #ifndef OPENSSL_NO_ECDH
1093                 else if (strcmp(*argv,"-named_curve") == 0)
1094                         {
1095                         if (--argc < 1) goto bad;
1096                         named_curve = *(++argv);
1097                         }
1098 #endif
1099                 else if (strcmp(*argv,"-dcertform") == 0)
1100                         {
1101                         if (--argc < 1) goto bad;
1102                         s_dcert_format = str2fmt(*(++argv));
1103                         }
1104                 else if (strcmp(*argv,"-dcert") == 0)
1105                         {
1106                         if (--argc < 1) goto bad;
1107                         s_dcert_file= *(++argv);
1108                         }
1109                 else if (strcmp(*argv,"-dkeyform") == 0)
1110                         {
1111                         if (--argc < 1) goto bad;
1112                         s_dkey_format = str2fmt(*(++argv));
1113                         }
1114                 else if (strcmp(*argv,"-dpass") == 0)
1115                         {
1116                         if (--argc < 1) goto bad;
1117                         dpassarg = *(++argv);
1118                         }
1119                 else if (strcmp(*argv,"-dkey") == 0)
1120                         {
1121                         if (--argc < 1) goto bad;
1122                         s_dkey_file= *(++argv);
1123                         }
1124                 else if (strcmp(*argv,"-dcert_chain") == 0)
1125                         {
1126                         if (--argc < 1) goto bad;
1127                         s_dchain_file= *(++argv);
1128                         }
1129                 else if (strcmp(*argv,"-nocert") == 0)
1130                         {
1131                         nocert=1;
1132                         }
1133                 else if (strcmp(*argv,"-CApath") == 0)
1134                         {
1135                         if (--argc < 1) goto bad;
1136                         CApath= *(++argv);
1137                         }
1138                 else if (strcmp(*argv,"-no_cache") == 0)
1139                         no_cache = 1;
1140                 else if (strcmp(*argv,"-ext_cache") == 0)
1141                         ext_cache = 1;
1142                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1143                         {
1144                         if (badarg)
1145                                 goto bad;
1146                         continue;
1147                         }
1148                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
1149                         {
1150                         if (badarg)
1151                                 goto bad;
1152                         continue;
1153                         }
1154                 else if (strcmp(*argv,"-verify_return_error") == 0)
1155                         verify_return_error = 1;
1156                 else if (strcmp(*argv,"-serverpref") == 0)
1157                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
1158                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
1159                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
1160                 else if (strcmp(*argv,"-cipher") == 0)
1161                         {
1162                         if (--argc < 1) goto bad;
1163                         cipher= *(++argv);
1164                         }
1165                 else if (strcmp(*argv,"-CAfile") == 0)
1166                         {
1167                         if (--argc < 1) goto bad;
1168                         CAfile= *(++argv);
1169                         }
1170 #ifdef FIONBIO
1171                 else if (strcmp(*argv,"-nbio") == 0)
1172                         { s_nbio=1; }
1173 #endif
1174                 else if (strcmp(*argv,"-nbio_test") == 0)
1175                         {
1176 #ifdef FIONBIO
1177                         s_nbio=1;
1178 #endif
1179                         s_nbio_test=1;
1180                         }
1181                 else if (strcmp(*argv,"-debug") == 0)
1182                         { s_debug=1; }
1183 #ifndef OPENSSL_NO_TLSEXT
1184                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1185                         s_tlsextdebug=1;
1186                 else if (strcmp(*argv,"-status") == 0)
1187                         s_tlsextstatus=1;
1188                 else if (strcmp(*argv,"-status_verbose") == 0)
1189                         {
1190                         s_tlsextstatus=1;
1191                         tlscstatp.verbose = 1;
1192                         }
1193                 else if (!strcmp(*argv, "-status_timeout"))
1194                         {
1195                         s_tlsextstatus=1;
1196                         if (--argc < 1) goto bad;
1197                         tlscstatp.timeout = atoi(*(++argv));
1198                         }
1199                 else if (!strcmp(*argv, "-status_url"))
1200                         {
1201                         s_tlsextstatus=1;
1202                         if (--argc < 1) goto bad;
1203                         if (!OCSP_parse_url(*(++argv),
1204                                         &tlscstatp.host,
1205                                         &tlscstatp.port,
1206                                         &tlscstatp.path,
1207                                         &tlscstatp.use_ssl))
1208                                 {
1209                                 BIO_printf(bio_err, "Error parsing URL\n");
1210                                 goto bad;
1211                                 }
1212                         }
1213                 else if (strcmp(*argv,"-curves") == 0)
1214                         {
1215                         if (--argc < 1) goto bad;
1216                         curves= *(++argv);
1217                         }
1218                 else if (strcmp(*argv,"-sigalgs") == 0)
1219                         {
1220                         if (--argc < 1) goto bad;
1221                         sigalgs= *(++argv);
1222                         }
1223                 else if (strcmp(*argv,"-client_sigalgs") == 0)
1224                         {
1225                         if (--argc < 1) goto bad;
1226                         client_sigalgs= *(++argv);
1227                         }
1228 #endif
1229                 else if (strcmp(*argv,"-msg") == 0)
1230                         { s_msg=1; }
1231                 else if (strcmp(*argv,"-msgfile") == 0)
1232                         {
1233                         if (--argc < 1) goto bad;
1234                         bio_s_msg = BIO_new_file(*(++argv), "w");
1235                         }
1236 #ifndef OPENSSL_NO_SSL_TRACE
1237                 else if (strcmp(*argv,"-trace") == 0)
1238                         { s_msg=2; }
1239 #endif
1240                 else if (strcmp(*argv,"-hack") == 0)
1241                         { hack=1; }
1242                 else if (strcmp(*argv,"-state") == 0)
1243                         { state=1; }
1244                 else if (strcmp(*argv,"-crlf") == 0)
1245                         { s_crlf=1; }
1246                 else if (strcmp(*argv,"-quiet") == 0)
1247                         { s_quiet=1; }
1248                 else if (strcmp(*argv,"-bugs") == 0)
1249                         { bugs=1; }
1250                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1251                         { no_tmp_rsa=1; }
1252                 else if (strcmp(*argv,"-no_dhe") == 0)
1253                         { no_dhe=1; }
1254                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1255                         { no_ecdhe=1; }
1256                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1257                         { no_resume_ephemeral = 1; }
1258 #ifndef OPENSSL_NO_PSK
1259                 else if (strcmp(*argv,"-psk_hint") == 0)
1260                         {
1261                         if (--argc < 1) goto bad;
1262                         psk_identity_hint= *(++argv);
1263                         }
1264                 else if (strcmp(*argv,"-psk") == 0)
1265                         {
1266                         size_t i;
1267
1268                         if (--argc < 1) goto bad;
1269                         psk_key=*(++argv);
1270                         for (i=0; i<strlen(psk_key); i++)
1271                                 {
1272                                 if (isxdigit((unsigned char)psk_key[i]))
1273                                         continue;
1274                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1275                                 goto bad;
1276                                 }
1277                         }
1278 #endif
1279 #ifndef OPENSSL_NO_SRP
1280                 else if (strcmp(*argv, "-srpvfile") == 0)
1281                         {
1282                         if (--argc < 1) goto bad;
1283                         srp_verifier_file = *(++argv);
1284                         meth = TLSv1_server_method();
1285                         }
1286                 else if (strcmp(*argv, "-srpuserseed") == 0)
1287                         {
1288                         if (--argc < 1) goto bad;
1289                         srpuserseed = *(++argv);
1290                         meth = TLSv1_server_method();
1291                         }
1292 #endif
1293                 else if (strcmp(*argv,"-www") == 0)
1294                         { www=1; }
1295                 else if (strcmp(*argv,"-WWW") == 0)
1296                         { www=2; }
1297                 else if (strcmp(*argv,"-HTTP") == 0)
1298                         { www=3; }
1299                 else if (strcmp(*argv,"-no_ssl2") == 0)
1300                         { off|=SSL_OP_NO_SSLv2; }
1301                 else if (strcmp(*argv,"-no_ssl3") == 0)
1302                         { off|=SSL_OP_NO_SSLv3; }
1303                 else if (strcmp(*argv,"-no_tls1") == 0)
1304                         { off|=SSL_OP_NO_TLSv1; }
1305                 else if (strcmp(*argv,"-no_tls1_1") == 0)
1306                         { off|=SSL_OP_NO_TLSv1_1; }
1307                 else if (strcmp(*argv,"-no_tls1_2") == 0)
1308                         { off|=SSL_OP_NO_TLSv1_2; }
1309                 else if (strcmp(*argv,"-no_comp") == 0)
1310                         { off|=SSL_OP_NO_COMPRESSION; }
1311 #ifndef OPENSSL_NO_TLSEXT
1312                 else if (strcmp(*argv,"-no_ticket") == 0)
1313                         { off|=SSL_OP_NO_TICKET; }
1314 #endif
1315 #ifndef OPENSSL_NO_SSL2
1316                 else if (strcmp(*argv,"-ssl2") == 0)
1317                         { meth=SSLv2_server_method(); }
1318 #endif
1319 #ifndef OPENSSL_NO_SSL3
1320                 else if (strcmp(*argv,"-ssl3") == 0)
1321                         { meth=SSLv3_server_method(); }
1322 #endif
1323 #ifndef OPENSSL_NO_TLS1
1324                 else if (strcmp(*argv,"-tls1") == 0)
1325                         { meth=TLSv1_server_method(); }
1326                 else if (strcmp(*argv,"-tls1_1") == 0)
1327                         { meth=TLSv1_1_server_method(); }
1328                 else if (strcmp(*argv,"-tls1_2") == 0)
1329                         { meth=TLSv1_2_server_method(); }
1330 #endif
1331 #ifndef OPENSSL_NO_DTLS1
1332                 else if (strcmp(*argv,"-dtls1") == 0)
1333                         {
1334                         meth=DTLSv1_server_method();
1335                         socket_type = SOCK_DGRAM;
1336                         }
1337                 else if (strcmp(*argv,"-timeout") == 0)
1338                         enable_timeouts = 1;
1339                 else if (strcmp(*argv,"-mtu") == 0)
1340                         {
1341                         if (--argc < 1) goto bad;
1342                         socket_mtu = atol(*(++argv));
1343                         }
1344                 else if (strcmp(*argv, "-chain") == 0)
1345                         cert_chain = 1;
1346 #endif
1347                 else if (strcmp(*argv, "-id_prefix") == 0)
1348                         {
1349                         if (--argc < 1) goto bad;
1350                         session_id_prefix = *(++argv);
1351                         }
1352 #ifndef OPENSSL_NO_ENGINE
1353                 else if (strcmp(*argv,"-engine") == 0)
1354                         {
1355                         if (--argc < 1) goto bad;
1356                         engine_id= *(++argv);
1357                         }
1358 #endif
1359                 else if (strcmp(*argv,"-rand") == 0)
1360                         {
1361                         if (--argc < 1) goto bad;
1362                         inrand= *(++argv);
1363                         }
1364 #ifndef OPENSSL_NO_TLSEXT
1365                 else if (strcmp(*argv,"-servername") == 0)
1366                         {
1367                         if (--argc < 1) goto bad;
1368                         tlsextcbp.servername= *(++argv);
1369                         }
1370                 else if (strcmp(*argv,"-servername_fatal") == 0)
1371                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1372                 else if (strcmp(*argv,"-cert2") == 0)
1373                         {
1374                         if (--argc < 1) goto bad;
1375                         s_cert_file2= *(++argv);
1376                         }
1377                 else if (strcmp(*argv,"-key2") == 0)
1378                         {
1379                         if (--argc < 1) goto bad;
1380                         s_key_file2= *(++argv);
1381                         }
1382 # ifndef OPENSSL_NO_NEXTPROTONEG
1383                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1384                         {
1385                         if (--argc < 1) goto bad;
1386                         next_proto_neg_in = *(++argv);
1387                         }
1388 # endif
1389 #endif
1390 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1391                 else if (strcmp(*argv,"-jpake") == 0)
1392                         {
1393                         if (--argc < 1) goto bad;
1394                         jpake_secret = *(++argv);
1395                         }
1396 #endif
1397                 else if (strcmp(*argv,"-use_srtp") == 0)
1398                         {
1399                         if (--argc < 1) goto bad;
1400                         srtp_profiles = *(++argv);
1401                         }
1402                 else if (strcmp(*argv,"-keymatexport") == 0)
1403                         {
1404                         if (--argc < 1) goto bad;
1405                         keymatexportlabel= *(++argv);
1406                         }
1407                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1408                         {
1409                         if (--argc < 1) goto bad;
1410                         keymatexportlen=atoi(*(++argv));
1411                         if (keymatexportlen == 0) goto bad;
1412                         }
1413                 else if (strcmp(*argv, "-cert_strict") == 0)
1414                         cert_flags |= SSL_CERT_FLAG_TLS_STRICT;
1415                 else
1416                         {
1417                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1418                         badop=1;
1419                         break;
1420                         }
1421                 argc--;
1422                 argv++;
1423                 }
1424         if (badop)
1425                 {
1426 bad:
1427                 sv_usage();
1428                 goto end;
1429                 }
1430
1431 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1432         if (jpake_secret)
1433                 {
1434                 if (psk_key)
1435                         {
1436                         BIO_printf(bio_err,
1437                                    "Can't use JPAKE and PSK together\n");
1438                         goto end;
1439                         }
1440                 psk_identity = "JPAKE";
1441                 if (cipher)
1442                         {
1443                         BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1444                         goto end;
1445                         }
1446                 cipher = "PSK";
1447                 }
1448
1449 #endif
1450
1451         SSL_load_error_strings();
1452         OpenSSL_add_ssl_algorithms();
1453
1454 #ifndef OPENSSL_NO_ENGINE
1455         e = setup_engine(bio_err, engine_id, 1);
1456 #endif
1457
1458         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1459                 {
1460                 BIO_printf(bio_err, "Error getting password\n");
1461                 goto end;
1462                 }
1463
1464
1465         if (s_key_file == NULL)
1466                 s_key_file = s_cert_file;
1467 #ifndef OPENSSL_NO_TLSEXT
1468         if (s_key_file2 == NULL)
1469                 s_key_file2 = s_cert_file2;
1470 #endif
1471
1472         if (!load_excert(&exc, bio_err))
1473                 goto end;
1474
1475         if (nocert == 0)
1476                 {
1477                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1478                        "server certificate private key file");
1479                 if (!s_key)
1480                         {
1481                         ERR_print_errors(bio_err);
1482                         goto end;
1483                         }
1484
1485                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1486                         NULL, e, "server certificate file");
1487
1488                 if (!s_cert)
1489                         {
1490                         ERR_print_errors(bio_err);
1491                         goto end;
1492                         }
1493                 if (s_chain_file)
1494                         {
1495                         s_chain = load_certs(bio_err, s_chain_file,FORMAT_PEM,
1496                                         NULL, e, "server certificate chain");
1497                         if (!s_chain)
1498                                 goto end;
1499                         }
1500
1501 #ifndef OPENSSL_NO_TLSEXT
1502                 if (tlsextcbp.servername)
1503                         {
1504                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1505                                 "second server certificate private key file");
1506                         if (!s_key2)
1507                                 {
1508                                 ERR_print_errors(bio_err);
1509                                 goto end;
1510                                 }
1511
1512                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1513                                 NULL, e, "second server certificate file");
1514
1515                         if (!s_cert2)
1516                                 {
1517                                 ERR_print_errors(bio_err);
1518                                 goto end;
1519                                 }
1520                         }
1521
1522 # ifndef OPENSSL_NO_NEXTPROTONEG
1523                 if (next_proto_neg_in)
1524                         {
1525                         unsigned short len;
1526                         next_proto.data = next_protos_parse(&len,
1527                                 next_proto_neg_in);
1528                         if (next_proto.data == NULL)
1529                                 goto end;
1530                         next_proto.len = len;
1531                         }
1532                 else
1533                         {
1534                         next_proto.data = NULL;
1535                         }
1536 # endif
1537 #endif /* OPENSSL_NO_TLSEXT */
1538                 }
1539
1540
1541         if (s_dcert_file)
1542                 {
1543
1544                 if (s_dkey_file == NULL)
1545                         s_dkey_file = s_dcert_file;
1546
1547                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1548                                 0, dpass, e,
1549                                "second certificate private key file");
1550                 if (!s_dkey)
1551                         {
1552                         ERR_print_errors(bio_err);
1553                         goto end;
1554                         }
1555
1556                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1557                                 NULL, e, "second server certificate file");
1558
1559                 if (!s_dcert)
1560                         {
1561                         ERR_print_errors(bio_err);
1562                         goto end;
1563                         }
1564                 if (s_dchain_file)
1565                         {
1566                         s_dchain = load_certs(bio_err, s_dchain_file,FORMAT_PEM,
1567                                 NULL, e, "second server certificate chain");
1568                         if (!s_dchain)
1569                                 goto end;
1570                         }
1571
1572                 }
1573
1574         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1575                 && !RAND_status())
1576                 {
1577                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1578                 }
1579         if (inrand != NULL)
1580                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1581                         app_RAND_load_files(inrand));
1582
1583         if (bio_s_out == NULL)
1584                 {
1585                 if (s_quiet && !s_debug && !s_msg)
1586                         {
1587                         bio_s_out=BIO_new(BIO_s_null());
1588                         }
1589                 else
1590                         {
1591                         if (bio_s_out == NULL)
1592                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1593                         }
1594                 }
1595
1596 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1597         if (nocert)
1598 #endif
1599                 {
1600                 s_cert_file=NULL;
1601                 s_key_file=NULL;
1602                 s_dcert_file=NULL;
1603                 s_dkey_file=NULL;
1604 #ifndef OPENSSL_NO_TLSEXT
1605                 s_cert_file2=NULL;
1606                 s_key_file2=NULL;
1607 #endif
1608                 }
1609
1610         ctx=SSL_CTX_new(meth);
1611         if (ctx == NULL)
1612                 {
1613                 ERR_print_errors(bio_err);
1614                 goto end;
1615                 }
1616         if (session_id_prefix)
1617                 {
1618                 if(strlen(session_id_prefix) >= 32)
1619                         BIO_printf(bio_err,
1620 "warning: id_prefix is too long, only one new session will be possible\n");
1621                 else if(strlen(session_id_prefix) >= 16)
1622                         BIO_printf(bio_err,
1623 "warning: id_prefix is too long if you use SSLv2\n");
1624                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1625                         {
1626                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1627                         ERR_print_errors(bio_err);
1628                         goto end;
1629                         }
1630                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1631                 }
1632         SSL_CTX_set_quiet_shutdown(ctx,1);
1633         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1634         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1635         SSL_CTX_set_options(ctx,off);
1636         if (cert_flags) SSL_CTX_set_cert_flags(ctx, cert_flags);
1637         if (exc) ssl_ctx_set_excert(ctx, exc);
1638         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1639          * Setting read ahead solves this problem.
1640          */
1641         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1642
1643         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1644         if (no_cache)
1645                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1646         else if (ext_cache)
1647                 init_session_cache_ctx(ctx);
1648         else
1649                 SSL_CTX_sess_set_cache_size(ctx,128);
1650
1651         if (srtp_profiles != NULL)
1652                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1653
1654 #if 0
1655         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1656 #endif
1657
1658 #if 0
1659         if (s_cert_file == NULL)
1660                 {
1661                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1662                 goto end;
1663                 }
1664 #endif
1665
1666         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1667                 (!SSL_CTX_set_default_verify_paths(ctx)))
1668                 {
1669                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1670                 ERR_print_errors(bio_err);
1671                 /* goto end; */
1672                 }
1673         if (vpm)
1674                 SSL_CTX_set1_param(ctx, vpm);
1675
1676 #ifndef OPENSSL_NO_TLSEXT
1677         if (s_cert2)
1678                 {
1679                 ctx2=SSL_CTX_new(meth);
1680                 if (ctx2 == NULL)
1681                         {
1682                         ERR_print_errors(bio_err);
1683                         goto end;
1684                         }
1685                 }
1686
1687         if (ctx2)
1688                 {
1689                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1690
1691                 if (session_id_prefix)
1692                         {
1693                         if(strlen(session_id_prefix) >= 32)
1694                                 BIO_printf(bio_err,
1695                                         "warning: id_prefix is too long, only one new session will be possible\n");
1696                         else if(strlen(session_id_prefix) >= 16)
1697                                 BIO_printf(bio_err,
1698                                         "warning: id_prefix is too long if you use SSLv2\n");
1699                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1700                                 {
1701                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1702                                 ERR_print_errors(bio_err);
1703                                 goto end;
1704                                 }
1705                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1706                         }
1707                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1708                 if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1709                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1710                 SSL_CTX_set_options(ctx2,off);
1711                 if (cert_flags) SSL_CTX_set_cert_flags(ctx2, cert_flags);
1712                 if (exc) ssl_ctx_set_excert(ctx2, exc);
1713                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1714                  * Setting read ahead solves this problem.
1715                  */
1716                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1717
1718                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1719
1720                 if (no_cache)
1721                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1722                 else if (ext_cache)
1723                         init_session_cache_ctx(ctx2);
1724                 else
1725                         SSL_CTX_sess_set_cache_size(ctx2,128);
1726
1727                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1728                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1729                         {
1730                         ERR_print_errors(bio_err);
1731                         }
1732                 if (vpm)
1733                         SSL_CTX_set1_param(ctx2, vpm);
1734                 }
1735
1736 # ifndef OPENSSL_NO_NEXTPROTONEG
1737         if (next_proto.data)
1738                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1739 # endif
1740 #endif
1741
1742 #ifndef OPENSSL_NO_DH
1743         if (!no_dhe)
1744                 {
1745                 DH *dh=NULL;
1746
1747                 if (dhfile)
1748                         dh = load_dh_param(dhfile);
1749                 else if (s_cert_file)
1750                         dh = load_dh_param(s_cert_file);
1751
1752                 if (dh != NULL)
1753                         {
1754                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1755                         }
1756                 else
1757                         {
1758                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1759                         dh=get_dh512();
1760                         }
1761                 (void)BIO_flush(bio_s_out);
1762
1763                 SSL_CTX_set_tmp_dh(ctx,dh);
1764 #ifndef OPENSSL_NO_TLSEXT
1765                 if (ctx2)
1766                         {
1767                         if (!dhfile)
1768                                 {
1769                                 DH *dh2=load_dh_param(s_cert_file2);
1770                                 if (dh2 != NULL)
1771                                         {
1772                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1773                                         (void)BIO_flush(bio_s_out);
1774
1775                                         DH_free(dh);
1776                                         dh = dh2;
1777                                         }
1778                                 }
1779                         SSL_CTX_set_tmp_dh(ctx2,dh);
1780                         }
1781 #endif
1782                 DH_free(dh);
1783                 }
1784 #endif
1785
1786 #ifndef OPENSSL_NO_ECDH
1787         if (!no_ecdhe)
1788                 {
1789                 EC_KEY *ecdh=NULL;
1790
1791                 if (named_curve && strcmp(named_curve, "auto"))
1792                         {
1793                         int nid = EC_curve_nist2nid(named_curve);
1794                         if (nid == NID_undef)
1795                                 nid = OBJ_sn2nid(named_curve);
1796                         if (nid == 0)
1797                                 {
1798                                 BIO_printf(bio_err, "unknown curve name (%s)\n",
1799                                         named_curve);
1800                                 goto end;
1801                                 }
1802                         ecdh = EC_KEY_new_by_curve_name(nid);
1803                         if (ecdh == NULL)
1804                                 {
1805                                 BIO_printf(bio_err, "unable to create curve (%s)\n",
1806                                         named_curve);
1807                                 goto end;
1808                                 }
1809                         }
1810
1811                 if (ecdh != NULL)
1812                         {
1813                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1814                         }
1815                 else if (named_curve)
1816                         SSL_CTX_set_ecdh_auto(ctx, 1);
1817                 else
1818                         {
1819                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1820                         ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
1821                         if (ecdh == NULL)
1822                                 {
1823                                 BIO_printf(bio_err, "unable to create curve (nistp256)\n");
1824                                 goto end;
1825                                 }
1826                         }
1827                 (void)BIO_flush(bio_s_out);
1828
1829                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1830 #ifndef OPENSSL_NO_TLSEXT
1831                 if (ctx2)
1832                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1833 #endif
1834                 EC_KEY_free(ecdh);
1835                 }
1836 #endif
1837
1838         if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain))
1839                 goto end;
1840 #ifndef OPENSSL_NO_TLSEXT
1841         if (s_authz_file != NULL && !SSL_CTX_use_authz_file(ctx, s_authz_file))
1842                 goto end;
1843 #endif
1844 #ifndef OPENSSL_NO_TLSEXT
1845         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2, NULL))
1846                 goto end;
1847 #endif
1848         if (s_dcert != NULL)
1849                 {
1850                 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain))
1851                         goto end;
1852                 }
1853
1854 #ifndef OPENSSL_NO_RSA
1855 #if 1
1856         if (!no_tmp_rsa)
1857                 {
1858                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1859 #ifndef OPENSSL_NO_TLSEXT
1860                 if (ctx2)
1861                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1862 #endif
1863                 }
1864 #else
1865         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1866                 {
1867                 RSA *rsa;
1868
1869                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1870                 BIO_flush(bio_s_out);
1871
1872                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1873
1874                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1875                         {
1876                         ERR_print_errors(bio_err);
1877                         goto end;
1878                         }
1879 #ifndef OPENSSL_NO_TLSEXT
1880                         if (ctx2)
1881                                 {
1882                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1883                                         {
1884                                         ERR_print_errors(bio_err);
1885                                         goto end;
1886                                         }
1887                                 }
1888 #endif
1889                 RSA_free(rsa);
1890                 BIO_printf(bio_s_out,"\n");
1891                 }
1892 #endif
1893 #endif
1894
1895         if (no_resume_ephemeral)
1896                 {
1897                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
1898 #ifndef OPENSSL_NO_TLSEXT
1899                 if (ctx2)
1900                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
1901 #endif
1902                 }
1903
1904 #ifndef OPENSSL_NO_PSK
1905 #ifdef OPENSSL_NO_JPAKE
1906         if (psk_key != NULL)
1907 #else
1908         if (psk_key != NULL || jpake_secret)
1909 #endif
1910                 {
1911                 if (s_debug)
1912                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
1913                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1914                 }
1915
1916         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1917                 {
1918                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1919                 ERR_print_errors(bio_err);
1920                 goto end;
1921                 }
1922 #endif
1923
1924         if (cipher != NULL)
1925                 {
1926                 if(!SSL_CTX_set_cipher_list(ctx,cipher))
1927                         {
1928                         BIO_printf(bio_err,"error setting cipher list\n");
1929                         ERR_print_errors(bio_err);
1930                         goto end;
1931                         }
1932 #ifndef OPENSSL_NO_TLSEXT
1933                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1934                         {
1935                         BIO_printf(bio_err,"error setting cipher list\n");
1936                         ERR_print_errors(bio_err);
1937                         goto end;
1938                         }
1939 #endif
1940                 }
1941 #ifndef OPENSSL_NO_TLSEXT
1942         if (curves)
1943                 {
1944                 if(!SSL_CTX_set1_curves_list(ctx,curves))
1945                         {
1946                         BIO_printf(bio_err,"error setting curves list\n");
1947                         ERR_print_errors(bio_err);
1948                         goto end;
1949                         }
1950                 if(ctx2 && !SSL_CTX_set1_curves_list(ctx2,curves))
1951                         {
1952                         BIO_printf(bio_err,"error setting curves list\n");
1953                         ERR_print_errors(bio_err);
1954                         goto end;
1955                         }
1956                 }
1957         if (sigalgs)
1958                 {
1959                 if(!SSL_CTX_set1_sigalgs_list(ctx,sigalgs))
1960                         {
1961                         BIO_printf(bio_err,"error setting signature algorithms\n");
1962                         ERR_print_errors(bio_err);
1963                         goto end;
1964                         }
1965                 if(ctx2 && !SSL_CTX_set1_sigalgs_list(ctx2,sigalgs))
1966                         {
1967                         BIO_printf(bio_err,"error setting signature algorithms\n");
1968                         ERR_print_errors(bio_err);
1969                         goto end;
1970                         }
1971                 }
1972         if (client_sigalgs)
1973                 {
1974                 if(!SSL_CTX_set1_client_sigalgs_list(ctx,client_sigalgs))
1975                         {
1976                         BIO_printf(bio_err,"error setting client signature algorithms\n");
1977                         ERR_print_errors(bio_err);
1978                         goto end;
1979                         }
1980                 if(ctx2 && !SSL_CTX_set1_client_sigalgs_list(ctx2,client_sigalgs))
1981                         {
1982                         BIO_printf(bio_err,"error setting client signature algorithms\n");
1983                         ERR_print_errors(bio_err);
1984                         goto end;
1985                         }
1986                 }
1987 #endif
1988         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1989         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1990                 sizeof s_server_session_id_context);
1991
1992         /* Set DTLS cookie generation and verification callbacks */
1993         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1994         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1995
1996 #ifndef OPENSSL_NO_TLSEXT
1997         if (ctx2)
1998                 {
1999                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
2000                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
2001                         sizeof s_server_session_id_context);
2002
2003                 tlsextcbp.biodebug = bio_s_out;
2004                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2005                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2006                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2007                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2008                 }
2009 #endif
2010
2011 #ifndef OPENSSL_NO_SRP
2012         if (srp_verifier_file != NULL)
2013                 {
2014                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
2015                 srp_callback_parm.user = NULL;
2016                 srp_callback_parm.login = NULL;
2017                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
2018                         {
2019                         BIO_printf(bio_err,
2020                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
2021                                    srp_verifier_file, ret);
2022                                 goto end;
2023                         }
2024                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
2025                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
2026                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
2027                 }
2028         else
2029 #endif
2030         if (CAfile != NULL)
2031                 {
2032                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
2033 #ifndef OPENSSL_NO_TLSEXT
2034                 if (ctx2)
2035                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
2036 #endif
2037                 }
2038
2039         BIO_printf(bio_s_out,"ACCEPT\n");
2040         (void)BIO_flush(bio_s_out);
2041         if (www)
2042                 do_server(port,socket_type,&accept_socket,www_body, context);
2043         else
2044                 do_server(port,socket_type,&accept_socket,sv_body, context);
2045         print_stats(bio_s_out,ctx);
2046         ret=0;
2047 end:
2048         if (ctx != NULL) SSL_CTX_free(ctx);
2049         if (s_cert)
2050                 X509_free(s_cert);
2051         if (s_dcert)
2052                 X509_free(s_dcert);
2053         if (s_key)
2054                 EVP_PKEY_free(s_key);
2055         if (s_dkey)
2056                 EVP_PKEY_free(s_dkey);
2057         if (pass)
2058                 OPENSSL_free(pass);
2059         if (dpass)
2060                 OPENSSL_free(dpass);
2061         free_sessions();
2062 #ifndef OPENSSL_NO_TLSEXT
2063         if (ctx2 != NULL) SSL_CTX_free(ctx2);
2064         if (s_cert2)
2065                 X509_free(s_cert2);
2066         if (s_key2)
2067                 EVP_PKEY_free(s_key2);
2068         if (authz_in != NULL)
2069                 BIO_free(authz_in);
2070 #endif
2071         ssl_excert_free(exc);
2072         if (bio_s_out != NULL)
2073                 {
2074         BIO_free(bio_s_out);
2075                 bio_s_out=NULL;
2076                 }
2077         if (bio_s_msg != NULL)
2078                 {
2079                 BIO_free(bio_s_msg);
2080                 bio_s_msg = NULL;
2081                 }
2082         apps_shutdown();
2083         OPENSSL_EXIT(ret);
2084         }
2085
2086 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2087         {
2088         BIO_printf(bio,"%4ld items in the session cache\n",
2089                 SSL_CTX_sess_number(ssl_ctx));
2090         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
2091                 SSL_CTX_sess_connect(ssl_ctx));
2092         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
2093                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2094         BIO_printf(bio,"%4ld client connects that finished\n",
2095                 SSL_CTX_sess_connect_good(ssl_ctx));
2096         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
2097                 SSL_CTX_sess_accept(ssl_ctx));
2098         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
2099                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2100         BIO_printf(bio,"%4ld server accepts that finished\n",
2101                 SSL_CTX_sess_accept_good(ssl_ctx));
2102         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
2103         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
2104         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
2105         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
2106         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
2107                 SSL_CTX_sess_cache_full(ssl_ctx),
2108                 SSL_CTX_sess_get_cache_size(ssl_ctx));
2109         }
2110
2111 static int sv_body(char *hostname, int s, unsigned char *context)
2112         {
2113         char *buf=NULL;
2114         fd_set readfds;
2115         int ret=1,width;
2116         int k,i;
2117         unsigned long l;
2118         SSL *con=NULL;
2119         BIO *sbio;
2120 #ifndef OPENSSL_NO_KRB5
2121         KSSL_CTX *kctx;
2122 #endif
2123         struct timeval timeout;
2124 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2125         struct timeval tv;
2126 #else
2127         struct timeval *timeoutp;
2128 #endif
2129
2130         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
2131                 {
2132                 BIO_printf(bio_err,"out of memory\n");
2133                 goto err;
2134                 }
2135 #ifdef FIONBIO
2136         if (s_nbio)
2137                 {
2138                 unsigned long sl=1;
2139
2140                 if (!s_quiet)
2141                         BIO_printf(bio_err,"turning on non blocking io\n");
2142                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2143                         ERR_print_errors(bio_err);
2144                 }
2145 #endif
2146
2147         if (con == NULL) {
2148                 con=SSL_new(ctx);
2149 #ifndef OPENSSL_NO_TLSEXT
2150         if (s_tlsextdebug)
2151                 {
2152                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2153                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2154                 }
2155         if (s_tlsextstatus)
2156                 {
2157                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2158                 tlscstatp.err = bio_err;
2159                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2160                 }
2161 #endif
2162 #ifndef OPENSSL_NO_KRB5
2163                 if ((kctx = kssl_ctx_new()) != NULL)
2164                         {
2165                         SSL_set0_kssl_ctx(con, kctx);
2166                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2167                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2168                         }
2169 #endif  /* OPENSSL_NO_KRB5 */
2170                 if(context)
2171                       SSL_set_session_id_context(con, context,
2172                                                  strlen((char *)context));
2173         }
2174         SSL_clear(con);
2175 #if 0
2176 #ifdef TLSEXT_TYPE_opaque_prf_input
2177         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2178 #endif
2179 #endif
2180
2181         if (SSL_version(con) == DTLS1_VERSION)
2182                 {
2183
2184                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2185
2186                 if (enable_timeouts)
2187                         {
2188                         timeout.tv_sec = 0;
2189                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2190                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2191
2192                         timeout.tv_sec = 0;
2193                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2194                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2195                         }
2196
2197                 if (socket_mtu > 28)
2198                         {
2199                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2200                         SSL_set_mtu(con, socket_mtu - 28);
2201                         }
2202                 else
2203                         /* want to do MTU discovery */
2204                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2205
2206         /* turn on cookie exchange */
2207         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2208                 }
2209         else
2210                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2211
2212         if (s_nbio_test)
2213                 {
2214                 BIO *test;
2215
2216                 test=BIO_new(BIO_f_nbio_test());
2217                 sbio=BIO_push(test,sbio);
2218                 }
2219 #ifndef OPENSSL_NO_JPAKE
2220         if(jpake_secret)
2221                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2222 #endif
2223
2224         SSL_set_bio(con,sbio,sbio);
2225         SSL_set_accept_state(con);
2226         /* SSL_set_fd(con,s); */
2227
2228         if (s_debug)
2229                 {
2230                 SSL_set_debug(con, 1);
2231                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2232                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2233                 }
2234         if (s_msg)
2235                 {
2236 #ifndef OPENSSL_NO_SSL_TRACE
2237                 if (s_msg == 2)
2238                         SSL_set_msg_callback(con, SSL_trace);
2239                 else
2240 #endif
2241                         SSL_set_msg_callback(con, msg_cb);
2242                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2243                 }
2244 #ifndef OPENSSL_NO_TLSEXT
2245         if (s_tlsextdebug)
2246                 {
2247                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2248                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2249                 }
2250 #endif
2251
2252         width=s+1;
2253         for (;;)
2254                 {
2255                 int read_from_terminal;
2256                 int read_from_sslcon;
2257
2258                 read_from_terminal = 0;
2259                 read_from_sslcon = SSL_pending(con);
2260
2261                 if (!read_from_sslcon)
2262                         {
2263                         FD_ZERO(&readfds);
2264 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2265                         openssl_fdset(fileno(stdin),&readfds);
2266 #endif
2267                         openssl_fdset(s,&readfds);
2268                         /* Note: under VMS with SOCKETSHR the second parameter is
2269                          * currently of type (int *) whereas under other systems
2270                          * it is (void *) if you don't have a cast it will choke
2271                          * the compiler: if you do have a cast then you can either
2272                          * go for (int *) or (void *).
2273                          */
2274 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2275                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2276                          * on sockets. As a workaround we timeout the select every
2277                          * second and check for any keypress. In a proper Windows
2278                          * application we wouldn't do this because it is inefficient.
2279                          */
2280                         tv.tv_sec = 1;
2281                         tv.tv_usec = 0;
2282                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2283                         if((i < 0) || (!i && !_kbhit() ) )continue;
2284                         if(_kbhit())
2285                                 read_from_terminal = 1;
2286 #elif defined(OPENSSL_SYS_BEOS_R5)
2287                         /* Under BeOS-R5 the situation is similar to DOS */
2288                         tv.tv_sec = 1;
2289                         tv.tv_usec = 0;
2290                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2291                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2292                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2293                                 continue;
2294                         if (read(fileno(stdin), buf, 0) >= 0)
2295                                 read_from_terminal = 1;
2296                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2297 #else
2298                         if ((SSL_version(con) == DTLS1_VERSION) &&
2299                                 DTLSv1_get_timeout(con, &timeout))
2300                                 timeoutp = &timeout;
2301                         else
2302                                 timeoutp = NULL;
2303
2304                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2305
2306                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2307                                 {
2308                                 BIO_printf(bio_err,"TIMEOUT occured\n");
2309                                 }
2310
2311                         if (i <= 0) continue;
2312                         if (FD_ISSET(fileno(stdin),&readfds))
2313                                 read_from_terminal = 1;
2314 #endif
2315                         if (FD_ISSET(s,&readfds))
2316                                 read_from_sslcon = 1;
2317                         }
2318                 if (read_from_terminal)
2319                         {
2320                         if (s_crlf)
2321                                 {
2322                                 int j, lf_num;
2323
2324                                 i=raw_read_stdin(buf, bufsize/2);
2325                                 lf_num = 0;
2326                                 /* both loops are skipped when i <= 0 */
2327                                 for (j = 0; j < i; j++)
2328                                         if (buf[j] == '\n')
2329                                                 lf_num++;
2330                                 for (j = i-1; j >= 0; j--)
2331                                         {
2332                                         buf[j+lf_num] = buf[j];
2333                                         if (buf[j] == '\n')
2334                                                 {
2335                                                 lf_num--;
2336                                                 i++;
2337                                                 buf[j+lf_num] = '\r';
2338                                                 }
2339                                         }
2340                                 assert(lf_num == 0);
2341                                 }
2342                         else
2343                                 i=raw_read_stdin(buf,bufsize);
2344                         if (!s_quiet)
2345                                 {
2346                                 if ((i <= 0) || (buf[0] == 'Q'))
2347                                         {
2348                                         BIO_printf(bio_s_out,"DONE\n");
2349                                         SHUTDOWN(s);
2350                                         close_accept_socket();
2351                                         ret= -11;
2352                                         goto err;
2353                                         }
2354                                 if ((i <= 0) || (buf[0] == 'q'))
2355                                         {
2356                                         BIO_printf(bio_s_out,"DONE\n");
2357                                         if (SSL_version(con) != DTLS1_VERSION)
2358                         SHUTDOWN(s);
2359         /*                              close_accept_socket();
2360                                         ret= -11;*/
2361                                         goto err;
2362                                         }
2363
2364 #ifndef OPENSSL_NO_HEARTBEATS
2365                                 if ((buf[0] == 'B') &&
2366                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2367                                         {
2368                                         BIO_printf(bio_err,"HEARTBEATING\n");
2369                                         SSL_heartbeat(con);
2370                                         i=0;
2371                                         continue;
2372                                         }
2373 #endif
2374                                 if ((buf[0] == 'r') &&
2375                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2376                                         {
2377                                         SSL_renegotiate(con);
2378                                         i=SSL_do_handshake(con);
2379                                         printf("SSL_do_handshake -> %d\n",i);
2380                                         i=0; /*13; */
2381                                         continue;
2382                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2383                                         }
2384                                 if ((buf[0] == 'R') &&
2385                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2386                                         {
2387                                         SSL_set_verify(con,
2388                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2389                                         SSL_renegotiate(con);
2390                                         i=SSL_do_handshake(con);
2391                                         printf("SSL_do_handshake -> %d\n",i);
2392                                         i=0; /* 13; */
2393                                         continue;
2394                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2395                                         }
2396                                 if (buf[0] == 'P')
2397                                         {
2398                                         static const char *str="Lets print some clear text\n";
2399                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2400                                         }
2401                                 if (buf[0] == 'S')
2402                                         {
2403                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2404                                         }
2405                                 }
2406 #ifdef CHARSET_EBCDIC
2407                         ebcdic2ascii(buf,buf,i);
2408 #endif
2409                         l=k=0;
2410                         for (;;)
2411                                 {
2412                                 /* should do a select for the write */
2413 #ifdef RENEG
2414 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2415 #endif
2416                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2417 #ifndef OPENSSL_NO_SRP
2418                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2419                                         {
2420                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2421                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2422                                         if (srp_callback_parm.user)
2423                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2424                                         else
2425                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2426                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2427                                         }
2428 #endif
2429                                 switch (SSL_get_error(con,k))
2430                                         {
2431                                 case SSL_ERROR_NONE:
2432                                         break;
2433                                 case SSL_ERROR_WANT_WRITE:
2434                                 case SSL_ERROR_WANT_READ:
2435                                 case SSL_ERROR_WANT_X509_LOOKUP:
2436                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2437                                         break;
2438                                 case SSL_ERROR_SYSCALL:
2439                                 case SSL_ERROR_SSL:
2440                                         BIO_printf(bio_s_out,"ERROR\n");
2441                                         ERR_print_errors(bio_err);
2442                                         ret=1;
2443                                         goto err;
2444                                         /* break; */
2445                                 case SSL_ERROR_ZERO_RETURN:
2446                                         BIO_printf(bio_s_out,"DONE\n");
2447                                         ret=1;
2448                                         goto err;
2449                                         }
2450                                 l+=k;
2451                                 i-=k;
2452                                 if (i <= 0) break;
2453                                 }
2454                         }
2455                 if (read_from_sslcon)
2456                         {
2457                         if (!SSL_is_init_finished(con))
2458                                 {
2459                                 i=init_ssl_connection(con);
2460
2461                                 if (i < 0)
2462                                         {
2463                                         ret=0;
2464                                         goto err;
2465                                         }
2466                                 else if (i == 0)
2467                                         {
2468                                         ret=1;
2469                                         goto err;
2470                                         }
2471                                 }
2472                         else
2473                                 {
2474 again:
2475                                 i=SSL_read(con,(char *)buf,bufsize);
2476 #ifndef OPENSSL_NO_SRP
2477                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2478                                         {
2479                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2480                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2481                                         if (srp_callback_parm.user)
2482                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2483                                         else
2484                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2485                                         i=SSL_read(con,(char *)buf,bufsize);
2486                                         }
2487 #endif
2488                                 switch (SSL_get_error(con,i))
2489                                         {
2490                                 case SSL_ERROR_NONE:
2491 #ifdef CHARSET_EBCDIC
2492                                         ascii2ebcdic(buf,buf,i);
2493 #endif
2494                                         raw_write_stdout(buf,
2495                                                 (unsigned int)i);
2496                                         if (SSL_pending(con)) goto again;
2497                                         break;
2498                                 case SSL_ERROR_WANT_WRITE:
2499                                 case SSL_ERROR_WANT_READ:
2500                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2501                                         break;
2502                                 case SSL_ERROR_SYSCALL:
2503                                 case SSL_ERROR_SSL:
2504                                         BIO_printf(bio_s_out,"ERROR\n");
2505                                         ERR_print_errors(bio_err);
2506                                         ret=1;
2507                                         goto err;
2508                                 case SSL_ERROR_ZERO_RETURN:
2509                                         BIO_printf(bio_s_out,"DONE\n");
2510                                         ret=1;
2511                                         goto err;
2512                                         }
2513                                 }
2514                         }
2515                 }
2516 err:
2517         if (con != NULL)
2518                 {
2519                 BIO_printf(bio_s_out,"shutting down SSL\n");
2520 #if 1
2521                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2522 #else
2523                 SSL_shutdown(con);
2524 #endif
2525                 SSL_free(con);
2526                 }
2527         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2528         if (buf != NULL)
2529                 {
2530                 OPENSSL_cleanse(buf,bufsize);
2531                 OPENSSL_free(buf);
2532                 }
2533         if (ret >= 0)
2534                 BIO_printf(bio_s_out,"ACCEPT\n");
2535         return(ret);
2536         }
2537
2538 static void close_accept_socket(void)
2539         {
2540         BIO_printf(bio_err,"shutdown accept socket\n");
2541         if (accept_socket >= 0)
2542                 {
2543                 SHUTDOWN2(accept_socket);
2544                 }
2545         }
2546
2547 static int init_ssl_connection(SSL *con)
2548         {
2549         int i;
2550         const char *str;
2551         X509 *peer;
2552         long verify_error;
2553         MS_STATIC char buf[BUFSIZ];
2554 #ifndef OPENSSL_NO_KRB5
2555         char *client_princ;
2556 #endif
2557 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2558         const unsigned char *next_proto_neg;
2559         unsigned next_proto_neg_len;
2560 #endif
2561         unsigned char *exportedkeymat;
2562
2563
2564         i=SSL_accept(con);
2565 #ifndef OPENSSL_NO_SRP
2566         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2567                 {
2568                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2569                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2570                         if (srp_callback_parm.user)
2571                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2572                         else
2573                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2574                         i=SSL_accept(con);
2575                 }
2576 #endif
2577         if (i <= 0)
2578                 {
2579                 if (BIO_sock_should_retry(i))
2580                         {
2581                         BIO_printf(bio_s_out,"DELAY\n");
2582                         return(1);
2583                         }
2584
2585                 BIO_printf(bio_err,"ERROR\n");
2586                 verify_error=SSL_get_verify_result(con);
2587                 if (verify_error != X509_V_OK)
2588                         {
2589                         BIO_printf(bio_err,"verify error:%s\n",
2590                                 X509_verify_cert_error_string(verify_error));
2591                         }
2592                 else
2593                         ERR_print_errors(bio_err);
2594                 return(0);
2595                 }
2596
2597         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2598
2599         peer=SSL_get_peer_certificate(con);
2600         if (peer != NULL)
2601                 {
2602                 BIO_printf(bio_s_out,"Client certificate\n");
2603                 PEM_write_bio_X509(bio_s_out,peer);
2604                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2605                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2606                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2607                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2608                 X509_free(peer);
2609                 }
2610
2611         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2612                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2613         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2614         ssl_print_sigalgs(bio_s_out, con, 0);
2615         ssl_print_curves(bio_s_out, con);
2616         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2617
2618 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2619         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2620         if (next_proto_neg)
2621                 {
2622                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2623                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2624                 BIO_printf(bio_s_out, "\n");
2625                 }
2626 #endif
2627         {
2628         SRTP_PROTECTION_PROFILE *srtp_profile
2629           = SSL_get_selected_srtp_profile(con);
2630
2631         if(srtp_profile)
2632                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2633                            srtp_profile->name);
2634         }
2635         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2636         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2637                 TLS1_FLAGS_TLS_PADDING_BUG)
2638                 BIO_printf(bio_s_out,
2639                            "Peer has incorrect TLSv1 block padding\n");
2640 #ifndef OPENSSL_NO_KRB5
2641         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2642         if (client_princ != NULL)
2643                 {
2644                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2645                                                                 client_princ);
2646                 }
2647 #endif /* OPENSSL_NO_KRB5 */
2648         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2649                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2650         if (keymatexportlabel != NULL)
2651                 {
2652                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2653                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2654                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2655                            keymatexportlen);
2656                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2657                 if (exportedkeymat != NULL)
2658                         {
2659                         if (!SSL_export_keying_material(con, exportedkeymat,
2660                                                         keymatexportlen,
2661                                                         keymatexportlabel,
2662                                                         strlen(keymatexportlabel),
2663                                                         NULL, 0, 0))
2664                                 {
2665                                 BIO_printf(bio_s_out, "    Error\n");
2666                                 }
2667                         else
2668                                 {
2669                                 BIO_printf(bio_s_out, "    Keying material: ");
2670                                 for (i=0; i<keymatexportlen; i++)
2671                                         BIO_printf(bio_s_out, "%02X",
2672                                                    exportedkeymat[i]);
2673                                 BIO_printf(bio_s_out, "\n");
2674                                 }
2675                         OPENSSL_free(exportedkeymat);
2676                         }
2677                 }
2678
2679         return(1);
2680         }
2681
2682 #ifndef OPENSSL_NO_DH
2683 static DH *load_dh_param(const char *dhfile)
2684         {
2685         DH *ret=NULL;
2686         BIO *bio;
2687
2688         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2689                 goto err;
2690         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2691 err:
2692         if (bio != NULL) BIO_free(bio);
2693         return(ret);
2694         }
2695 #endif
2696
2697 #if 0
2698 static int load_CA(SSL_CTX *ctx, char *file)
2699         {
2700         FILE *in;
2701         X509 *x=NULL;
2702
2703         if ((in=fopen(file,"r")) == NULL)
2704                 return(0);
2705
2706         for (;;)
2707                 {
2708                 if (PEM_read_X509(in,&x,NULL) == NULL)
2709                         break;
2710                 SSL_CTX_add_client_CA(ctx,x);
2711                 }
2712         if (x != NULL) X509_free(x);
2713         fclose(in);
2714         return(1);
2715         }
2716 #endif
2717
2718 static int www_body(char *hostname, int s, unsigned char *context)
2719         {
2720         char *buf=NULL;
2721         int ret=1;
2722         int i,j,k,dot;
2723         SSL *con;
2724         const SSL_CIPHER *c;
2725         BIO *io,*ssl_bio,*sbio;
2726 #ifndef OPENSSL_NO_KRB5
2727         KSSL_CTX *kctx;
2728 #endif
2729
2730         buf=OPENSSL_malloc(bufsize);
2731         if (buf == NULL) return(0);
2732         io=BIO_new(BIO_f_buffer());
2733         ssl_bio=BIO_new(BIO_f_ssl());
2734         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2735
2736 #ifdef FIONBIO
2737         if (s_nbio)
2738                 {
2739                 unsigned long sl=1;
2740
2741                 if (!s_quiet)
2742                         BIO_printf(bio_err,"turning on non blocking io\n");
2743                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2744                         ERR_print_errors(bio_err);
2745                 }
2746 #endif
2747
2748         /* lets make the output buffer a reasonable size */
2749         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2750
2751         if ((con=SSL_new(ctx)) == NULL) goto err;
2752 #ifndef OPENSSL_NO_TLSEXT
2753                 if (s_tlsextdebug)
2754                         {
2755                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2756                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2757                         }
2758 #endif
2759 #ifndef OPENSSL_NO_KRB5
2760         if ((kctx = kssl_ctx_new()) != NULL)
2761                 {
2762                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2763                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2764                 }
2765 #endif  /* OPENSSL_NO_KRB5 */
2766         if(context) SSL_set_session_id_context(con, context,
2767                                                strlen((char *)context));
2768
2769         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2770         if (s_nbio_test)
2771                 {
2772                 BIO *test;
2773
2774                 test=BIO_new(BIO_f_nbio_test());
2775                 sbio=BIO_push(test,sbio);
2776                 }
2777         SSL_set_bio(con,sbio,sbio);
2778         SSL_set_accept_state(con);
2779
2780         /* SSL_set_fd(con,s); */
2781         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2782         BIO_push(io,ssl_bio);
2783 #ifdef CHARSET_EBCDIC
2784         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2785 #endif
2786
2787         if (s_debug)
2788                 {
2789                 SSL_set_debug(con, 1);
2790                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2791                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2792                 }
2793         if (s_msg)
2794                 {
2795 #ifndef OPENSSL_NO_SSL_TRACE
2796                 if (s_msg == 2)
2797                         SSL_set_msg_callback(con, SSL_trace);
2798                 else
2799 #endif
2800                         SSL_set_msg_callback(con, msg_cb);
2801                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2802                 }
2803
2804         for (;;)
2805                 {
2806                 if (hack)
2807                         {
2808                         i=SSL_accept(con);
2809 #ifndef OPENSSL_NO_SRP
2810                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2811                 {
2812                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2813                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2814                         if (srp_callback_parm.user)
2815                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2816                         else
2817                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2818                         i=SSL_accept(con);
2819                 }
2820 #endif
2821                         switch (SSL_get_error(con,i))
2822                                 {
2823                         case SSL_ERROR_NONE:
2824                                 break;
2825                         case SSL_ERROR_WANT_WRITE:
2826                         case SSL_ERROR_WANT_READ:
2827                         case SSL_ERROR_WANT_X509_LOOKUP:
2828                                 continue;
2829                         case SSL_ERROR_SYSCALL:
2830                         case SSL_ERROR_SSL:
2831                         case SSL_ERROR_ZERO_RETURN:
2832                                 ret=1;
2833                                 goto err;
2834                                 /* break; */
2835                                 }
2836
2837                         SSL_renegotiate(con);
2838                         SSL_write(con,NULL,0);
2839                         }
2840
2841                 i=BIO_gets(io,buf,bufsize-1);
2842                 if (i < 0) /* error */
2843                         {
2844                         if (!BIO_should_retry(io))
2845                                 {
2846                                 if (!s_quiet)
2847                                         ERR_print_errors(bio_err);
2848                                 goto err;
2849                                 }
2850                         else
2851                                 {
2852                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2853 #if defined(OPENSSL_SYS_NETWARE)
2854             delay(1000);
2855 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2856                                 sleep(1);
2857 #endif
2858                                 continue;
2859                                 }
2860                         }
2861                 else if (i == 0) /* end of input */
2862                         {
2863                         ret=1;
2864                         goto end;
2865                         }
2866
2867                 /* else we have data */
2868                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2869                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2870                         {
2871                         char *p;
2872                         X509 *peer;
2873                         STACK_OF(SSL_CIPHER) *sk;
2874                         static const char *space="                          ";
2875
2876                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
2877                         {
2878                         if (strncmp("GET /renegcert", buf, 14) == 0)
2879                                 SSL_set_verify(con,
2880                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2881                         i=SSL_renegotiate(con);
2882                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
2883                         i=SSL_do_handshake(con);
2884                         if (i <= 0)
2885                                 {
2886                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2887                                 ERR_print_errors(bio_err);
2888                                 goto err;
2889                                 }
2890                         /* EVIL HACK! */
2891                         SSL_set_state(con, SSL_ST_ACCEPT);
2892                         i=SSL_do_handshake(con);
2893                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
2894                         if (i <= 0)
2895                                 {
2896                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2897                                 ERR_print_errors(bio_err);
2898                                 goto err;
2899                                 }
2900                         }
2901
2902                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2903                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2904                         BIO_puts(io,"<pre>\n");
2905 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2906                         BIO_puts(io,"\n");
2907                         for (i=0; i<local_argc; i++)
2908                                 {
2909                                 BIO_puts(io,local_argv[i]);
2910                                 BIO_write(io," ",1);
2911                                 }
2912                         BIO_puts(io,"\n");
2913
2914                         BIO_printf(io,
2915                                 "Secure Renegotiation IS%s supported\n",
2916                                 SSL_get_secure_renegotiation_support(con) ?
2917                                                         "" : " NOT");
2918
2919                         /* The following is evil and should not really
2920                          * be done */
2921                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2922                         sk=SSL_get_ciphers(con);
2923                         j=sk_SSL_CIPHER_num(sk);
2924                         for (i=0; i<j; i++)
2925                                 {
2926                                 c=sk_SSL_CIPHER_value(sk,i);
2927                                 BIO_printf(io,"%-11s:%-25s",
2928                                         SSL_CIPHER_get_version(c),
2929                                         SSL_CIPHER_get_name(c));
2930                                 if ((((i+1)%2) == 0) && (i+1 != j))
2931                                         BIO_puts(io,"\n");
2932                                 }
2933                         BIO_puts(io,"\n");
2934                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2935                         if (p != NULL)
2936                                 {
2937                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2938                                 j=i=0;
2939                                 while (*p)
2940                                         {
2941                                         if (*p == ':')
2942                                                 {
2943                                                 BIO_write(io,space,26-j);
2944                                                 i++;
2945                                                 j=0;
2946                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2947                                                 }
2948                                         else
2949                                                 {
2950                                                 BIO_write(io,p,1);
2951                                                 j++;
2952                                                 }
2953                                         p++;
2954                                         }
2955                                 BIO_puts(io,"\n");
2956                                 }
2957                         ssl_print_sigalgs(io, con, 0);
2958                         ssl_print_curves(io, con);
2959                         BIO_printf(io,(SSL_cache_hit(con)
2960                                 ?"---\nReused, "
2961                                 :"---\nNew, "));
2962                         c=SSL_get_current_cipher(con);
2963                         BIO_printf(io,"%s, Cipher is %s\n",
2964                                 SSL_CIPHER_get_version(c),
2965                                 SSL_CIPHER_get_name(c));
2966                         SSL_SESSION_print(io,SSL_get_session(con));
2967                         BIO_printf(io,"---\n");
2968                         print_stats(io,SSL_get_SSL_CTX(con));
2969                         BIO_printf(io,"---\n");
2970                         peer=SSL_get_peer_certificate(con);
2971                         if (peer != NULL)
2972                                 {
2973                                 BIO_printf(io,"Client certificate\n");
2974                                 X509_print(io,peer);
2975                                 PEM_write_bio_X509(io,peer);
2976                                 }
2977                         else
2978                                 BIO_puts(io,"no client certificate available\n");
2979                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2980                         break;
2981                         }
2982                 else if ((www == 2 || www == 3)
2983                          && (strncmp("GET /",buf,5) == 0))
2984                         {
2985                         BIO *file;
2986                         char *p,*e;
2987                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2988
2989                         /* skip the '/' */
2990                         p= &(buf[5]);
2991
2992                         dot = 1;
2993                         for (e=p; *e != '\0'; e++)
2994                                 {
2995                                 if (e[0] == ' ')
2996                                         break;
2997
2998                                 switch (dot)
2999                                         {
3000                                 case 1:
3001                                         dot = (e[0] == '.') ? 2 : 0;
3002                                         break;
3003                                 case 2:
3004                                         dot = (e[0] == '.') ? 3 : 0;
3005                                         break;
3006                                 case 3:
3007                                         dot = (e[0] == '/') ? -1 : 0;
3008                                         break;
3009                                         }
3010                                 if (dot == 0)
3011                                         dot = (e[0] == '/') ? 1 : 0;
3012                                 }
3013                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
3014
3015                         if (*e == '\0')
3016                                 {
3017                                 BIO_puts(io,text);
3018                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
3019                                 break;
3020                                 }
3021                         *e='\0';
3022
3023                         if (dot)
3024                                 {
3025                                 BIO_puts(io,text);
3026                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
3027                                 break;
3028                                 }
3029
3030                         if (*p == '/')
3031                                 {
3032                                 BIO_puts(io,text);
3033                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
3034                                 break;
3035                                 }
3036
3037 #if 0
3038                         /* append if a directory lookup */
3039                         if (e[-1] == '/')
3040                                 strcat(p,"index.html");
3041 #endif
3042
3043                         /* if a directory, do the index thang */
3044                         if (app_isdir(p)>0)
3045                                 {
3046 #if 0 /* must check buffer size */
3047                                 strcat(p,"/index.html");
3048 #else
3049                                 BIO_puts(io,text);
3050                                 BIO_printf(io,"'%s' is a directory\r\n",p);
3051                                 break;
3052 #endif
3053                                 }
3054
3055                         if ((file=BIO_new_file(p,"r")) == NULL)
3056                                 {
3057                                 BIO_puts(io,text);
3058                                 BIO_printf(io,"Error opening '%s'\r\n",p);
3059                                 ERR_print_errors(io);
3060                                 break;
3061                                 }
3062
3063                         if (!s_quiet)
3064                                 BIO_printf(bio_err,"FILE:%s\n",p);
3065
3066                         if (www == 2)
3067                                 {
3068                                 i=strlen(p);
3069                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
3070                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
3071                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
3072                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3073                                 else
3074                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3075                                 }
3076                         /* send the file */
3077                         for (;;)
3078                                 {
3079                                 i=BIO_read(file,buf,bufsize);
3080                                 if (i <= 0) break;
3081
3082 #ifdef RENEG
3083                                 total_bytes+=i;
3084                                 fprintf(stderr,"%d\n",i);
3085                                 if (total_bytes > 3*1024)
3086                                         {
3087                                         total_bytes=0;
3088                                         fprintf(stderr,"RENEGOTIATE\n");
3089                                         SSL_renegotiate(con);
3090                                         }
3091 #endif
3092
3093                                 for (j=0; j<i; )
3094                                         {
3095 #ifdef RENEG
3096 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
3097 #endif
3098                                         k=BIO_write(io,&(buf[j]),i-j);
3099                                         if (k <= 0)
3100                                                 {
3101                                                 if (!BIO_should_retry(io))
3102                                                         goto write_error;
3103                                                 else
3104                                                         {
3105                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
3106                                                         }
3107                                                 }
3108                                         else
3109                                                 {
3110                                                 j+=k;
3111                                                 }
3112                                         }
3113                                 }
3114 write_error:
3115                         BIO_free(file);
3116                         break;
3117                         }
3118                 }
3119
3120         for (;;)
3121                 {
3122                 i=(int)BIO_flush(io);
3123                 if (i <= 0)
3124                         {
3125                         if (!BIO_should_retry(io))
3126                                 break;
3127                         }
3128                 else
3129                         break;
3130                 }
3131 end:
3132 #if 1
3133         /* make sure we re-use sessions */
3134         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3135 #else
3136         /* This kills performance */
3137 /*      SSL_shutdown(con); A shutdown gets sent in the
3138  *      BIO_free_all(io) procession */
3139 #endif
3140
3141 err:
3142
3143         if (ret >= 0)
3144                 BIO_printf(bio_s_out,"ACCEPT\n");
3145
3146         if (buf != NULL) OPENSSL_free(buf);
3147         if (io != NULL) BIO_free_all(io);
3148 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3149         return(ret);
3150         }
3151
3152 #ifndef OPENSSL_NO_RSA
3153 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3154         {
3155         BIGNUM *bn = NULL;
3156         static RSA *rsa_tmp=NULL;
3157
3158         if (!rsa_tmp && ((bn = BN_new()) == NULL))
3159                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
3160         if (!rsa_tmp && bn)
3161                 {
3162                 if (!s_quiet)
3163                         {
3164                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
3165                         (void)BIO_flush(bio_err);
3166                         }
3167                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3168                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
3169                         {
3170                         if(rsa_tmp) RSA_free(rsa_tmp);
3171                         rsa_tmp = NULL;
3172                         }
3173                 if (!s_quiet)
3174                         {
3175                         BIO_printf(bio_err,"\n");
3176                         (void)BIO_flush(bio_err);
3177                         }
3178                 BN_free(bn);
3179                 }
3180         return(rsa_tmp);
3181         }
3182 #endif
3183
3184 #define MAX_SESSION_ID_ATTEMPTS 10
3185 static int generate_session_id(const SSL *ssl, unsigned char *id,
3186                                 unsigned int *id_len)
3187         {
3188         unsigned int count = 0;
3189         do      {
3190                 RAND_pseudo_bytes(id, *id_len);
3191                 /* Prefix the session_id with the required prefix. NB: If our
3192                  * prefix is too long, clip it - but there will be worse effects
3193                  * anyway, eg. the server could only possibly create 1 session
3194                  * ID (ie. the prefix!) so all future session negotiations will
3195                  * fail due to conflicts. */
3196                 memcpy(id, session_id_prefix,
3197                         (strlen(session_id_prefix) < *id_len) ?
3198                         strlen(session_id_prefix) : *id_len);
3199                 }
3200         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3201                 (++count < MAX_SESSION_ID_ATTEMPTS));
3202         if(count >= MAX_SESSION_ID_ATTEMPTS)
3203                 return 0;
3204         return 1;
3205         }
3206
3207 /* By default s_server uses an in-memory cache which caches SSL_SESSION
3208  * structures without any serialisation. This hides some bugs which only
3209  * become apparent in deployed servers. By implementing a basic external
3210  * session cache some issues can be debugged using s_server.
3211  */
3212
3213 typedef struct simple_ssl_session_st
3214         {
3215         unsigned char *id;
3216         unsigned int idlen;
3217         unsigned char *der;
3218         int derlen;
3219         struct simple_ssl_session_st *next;
3220         } simple_ssl_session;
3221
3222 static simple_ssl_session *first = NULL;
3223
3224 static int add_session(SSL *ssl, SSL_SESSION *session)
3225         {
3226         simple_ssl_session *sess;
3227         unsigned char *p;
3228
3229         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3230
3231         SSL_SESSION_get_id(session, &sess->idlen);
3232         sess->derlen = i2d_SSL_SESSION(session, NULL);
3233
3234         sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3235
3236         sess->der = OPENSSL_malloc(sess->derlen);
3237         p = sess->der;
3238         i2d_SSL_SESSION(session, &p);
3239
3240         sess->next = first;
3241         first = sess;
3242         BIO_printf(bio_err, "New session added to external cache\n");
3243         return 0;
3244         }
3245
3246 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3247                                         int *do_copy)
3248         {
3249         simple_ssl_session *sess;
3250         *do_copy = 0;
3251         for (sess = first; sess; sess = sess->next)
3252                 {
3253                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3254                         {
3255                         const unsigned char *p = sess->der;
3256                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3257                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3258                         }
3259                 }
3260         BIO_printf(bio_err, "Lookup session: cache miss\n");
3261         return NULL;
3262         }
3263
3264 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3265         {
3266         simple_ssl_session *sess, *prev = NULL;
3267         const unsigned char *id;
3268         unsigned int idlen;
3269         id = SSL_SESSION_get_id(session, &idlen);
3270         for (sess = first; sess; sess = sess->next)
3271                 {
3272                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
3273                         {
3274                         if(prev)
3275                                 prev->next = sess->next;
3276                         else
3277                                 first = sess->next;
3278                         OPENSSL_free(sess->id);
3279                         OPENSSL_free(sess->der);
3280                         OPENSSL_free(sess);
3281                         return;
3282                         }
3283                 prev = sess;
3284                 }
3285         }
3286
3287 static void init_session_cache_ctx(SSL_CTX *sctx)
3288         {
3289         SSL_CTX_set_session_cache_mode(sctx,
3290                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
3291         SSL_CTX_sess_set_new_cb(sctx, add_session);
3292         SSL_CTX_sess_set_get_cb(sctx, get_session);
3293         SSL_CTX_sess_set_remove_cb(sctx, del_session);
3294         }
3295
3296 static void free_sessions(void)
3297         {
3298         simple_ssl_session *sess, *tsess;
3299         for (sess = first; sess;)
3300                 {
3301                 OPENSSL_free(sess->id);
3302                 OPENSSL_free(sess->der);
3303                 tsess = sess;
3304                 sess = sess->next;
3305                 OPENSSL_free(tsess);
3306                 }
3307         first = NULL;
3308         }
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318