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