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;
 274 #ifndef OPENSSL_NO_TLSEXT
 275 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
 276 #endif
 277 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 278 #ifdef FIONBIO
 279 static int s_nbio=0;
 280 #endif
 281 static int s_nbio_test=0;
 282 int s_crlf=0;
 283 static SSL_CTX *ctx=NULL;
 284 #ifndef OPENSSL_NO_TLSEXT
 285 static SSL_CTX *ctx2=NULL;
 286 #endif
 287 static int www=0;
 288
 289 static BIO *bio_s_out=NULL;
 290 static int s_debug=0;
 291 #ifndef OPENSSL_NO_TLSEXT
 292 static int s_tlsextdebug=0;
 293 static int s_tlsextstatus=0;
 294 static int cert_status_cb(SSL *s, void *arg);
 295 #endif
 296 static int no_resume_ephemeral = 0;
 297 static int s_msg=0;
 298 static int s_quiet=0;
 299
 300 static int hack=0;
 301 #ifndef OPENSSL_NO_ENGINE
 302 static char *engine_id=NULL;
 303 #endif
 304 static const char *session_id_prefix=NULL;
 305
 306 static int enable_timeouts = 0;
 307 static long socket_mtu;
 308 #ifndef OPENSSL_NO_DTLS1
 309 static int cert_chain = 0;
 310 #endif
 311
 312 #ifndef OPENSSL_NO_PSK
 313 static char *psk_identity="Client_identity";
 314 char *psk_key=NULL; /* by default PSK is not used */
 315
 316 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
 317         unsigned char *psk, unsigned int max_psk_len)
 318         {
 319         unsigned int psk_len = 0;
 320         int ret;
 321         BIGNUM *bn = NULL;
 322
 323         if (s_debug)
 324                 BIO_printf(bio_s_out,"psk_server_cb\n");
 325         if (!identity)
 326                 {
 327                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
 328                 goto out_err;
 329                 }
 330         if (s_debug)
 331                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
 332                         identity ? (int)strlen(identity) : 0, identity);
 333
 334         /* here we could lookup the given identity e.g. from a database */
 335         if (strcmp(identity, psk_identity) != 0)
 336                 {
 337                 BIO_printf(bio_s_out, "PSK error: client identity not found"
 338                            " (got '%s' expected '%s')\n", identity,
 339                            psk_identity);
 340                 goto out_err;
 341                 }
 342         if (s_debug)
 343                 BIO_printf(bio_s_out, "PSK client identity found\n");
 344
 345         /* convert the PSK key to binary */
 346         ret = BN_hex2bn(&bn, psk_key);
 347         if (!ret)
 348                 {
 349                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 350                 if (bn)
 351                         BN_free(bn);
 352                 return 0;
 353                 }
 354         if (BN_num_bytes(bn) > (int)max_psk_len)
 355                 {
 356                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 357                         max_psk_len, BN_num_bytes(bn));
 358                 BN_free(bn);
 359                 return 0;
 360                 }
 361
 362         ret = BN_bn2bin(bn, psk);
 363         BN_free(bn);
 364
 365         if (ret < 0)
 366                 goto out_err;
 367         psk_len = (unsigned int)ret;
 368
 369         if (s_debug)
 370                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
 371         return psk_len;
 372  out_err:
 373         if (s_debug)
 374                 BIO_printf(bio_err, "Error in PSK server callback\n");
 375         return 0;
 376         }
 377 #endif
 378
 379 #ifndef OPENSSL_NO_SRP
 380 /* This is a context that we pass to callbacks */
 381 typedef struct srpsrvparm_st
 382         {
 383         int verbose;
 384         char *login;
 385         SRP_VBASE *vb;
 386         } srpsrvparm;
 387
 388 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
 389         {
 390         srpsrvparm *p = arg;
 391         SRP_user_pwd *user;
 392
 393         p->login = BUF_strdup(SSL_get_srp_username(s));
 394         BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
 395
 396         user = SRP_VBASE_get_by_user(p->vb, p->login);
 397         if (user == NULL)
 398                 {
 399                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
 400                 return SSL3_AL_FATAL;
 401                 }
 402         if (SSL_set_srp_server_param(s, user->N, user->g, user->s, user->v,
 403                                      user->info) < 0)
 404                 {
 405                 *ad = SSL_AD_INTERNAL_ERROR;
 406                 return SSL3_AL_FATAL;
 407                 }
 408         return SSL_ERROR_NONE;
 409         }
 410
 411 #endif
 412
 413 #ifdef MONOLITH
 414 static void s_server_init(void)
 415         {
 416         accept_socket=-1;
 417         cipher=NULL;
 418         s_server_verify=SSL_VERIFY_NONE;
 419         s_dcert_file=NULL;
 420         s_dkey_file=NULL;
 421         s_cert_file=TEST_CERT;
 422         s_key_file=NULL;
 423 #ifndef OPENSSL_NO_TLSEXT
 424         s_cert_file2=TEST_CERT2;
 425         s_key_file2=NULL;
 426         ctx2=NULL;
 427 #endif
 428 #ifdef FIONBIO
 429         s_nbio=0;
 430 #endif
 431         s_nbio_test=0;
 432         ctx=NULL;
 433         www=0;
 434
 435         bio_s_out=NULL;
 436         s_debug=0;
 437         s_msg=0;
 438         s_quiet=0;
 439         hack=0;
 440 #ifndef OPENSSL_NO_ENGINE
 441         engine_id=NULL;
 442 #endif
 443         }
 444 #endif
 445
 446 static void sv_usage(void)
 447         {
 448         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 449         BIO_printf(bio_err,"\n");
 450         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 451         BIO_printf(bio_err," -context arg  - set session ID context\n");
 452         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 453         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 454         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 455         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 456         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
 457                            "                 The CRL(s) are appended to the certificate file\n");
 458         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
 459                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
 460                            "                 the certificate file.\n");
 461         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 462         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 463         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 464         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 465         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 466         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 467         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 468         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 469         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 470         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 471         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 472         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 473 #ifndef OPENSSL_NO_ECDH
 474         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 475                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 476                            "                 (default is nistp256).\n");
 477 #endif
 478 #ifdef FIONBIO
 479         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 480 #endif
 481         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 482         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 483         BIO_printf(bio_err," -debug        - Print more output\n");
 484         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 485         BIO_printf(bio_err," -state        - Print the SSL states\n");
 486         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 487         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 488         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 489         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 490         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 491         BIO_printf(bio_err," -quiet        - No server output\n");
 492         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 493 #ifndef OPENSSL_NO_PSK
 494         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
 495         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 496 # ifndef OPENSSL_NO_JPAKE
 497         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 498 # endif
 499 #endif
 500 #ifndef OPENSSL_NO_SRP
 501         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
 502         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
 503 #endif
 504         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 505         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 506         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
 507         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
 508         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 509         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 510         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 511         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
 512         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 513         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 514         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 515         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 516         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
 517         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
 518 #ifndef OPENSSL_NO_DH
 519         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 520 #endif
 521 #ifndef OPENSSL_NO_ECDH
 522         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 523 #endif
 524         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
 525         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 526         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 527         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 528         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 529         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 530 #ifndef OPENSSL_NO_ENGINE
 531         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 532 #endif
 533         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 534         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 535 #ifndef OPENSSL_NO_TLSEXT
 536         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 537         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
 538         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 539         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 540         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 541         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 542         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
 543         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
 544         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 545 # ifndef OPENSSL_NO_NEXTPROTONEG
 546         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
 547 # endif
 548 #endif
 549         }
 550
 551 static int local_argc=0;
 552 static char **local_argv;
 553
 554 #ifdef CHARSET_EBCDIC
 555 static int ebcdic_new(BIO *bi);
 556 static int ebcdic_free(BIO *a);
 557 static int ebcdic_read(BIO *b, char *out, int outl);
 558 static int ebcdic_write(BIO *b, const char *in, int inl);
 559 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 560 static int ebcdic_gets(BIO *bp, char *buf, int size);
 561 static int ebcdic_puts(BIO *bp, const char *str);
 562
 563 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 564 static BIO_METHOD methods_ebcdic=
 565         {
 566         BIO_TYPE_EBCDIC_FILTER,
 567         "EBCDIC/ASCII filter",
 568         ebcdic_write,
 569         ebcdic_read,
 570         ebcdic_puts,
 571         ebcdic_gets,
 572         ebcdic_ctrl,
 573         ebcdic_new,
 574         ebcdic_free,
 575         };
 576
 577 typedef struct
 578 {
 579         size_t  alloced;
 580         char    buff[1];
 581 } EBCDIC_OUTBUFF;
 582
 583 BIO_METHOD *BIO_f_ebcdic_filter()
 584 {
 585         return(&methods_ebcdic);
 586 }
 587
 588 static int ebcdic_new(BIO *bi)
 589 {
 590         EBCDIC_OUTBUFF *wbuf;
 591
 592         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 593         wbuf->alloced = 1024;
 594         wbuf->buff[0] = '\0';
 595
 596         bi->ptr=(char *)wbuf;
 597         bi->init=1;
 598         bi->flags=0;
 599         return(1);
 600 }
 601
 602 static int ebcdic_free(BIO *a)
 603 {
 604         if (a == NULL) return(0);
 605         if (a->ptr != NULL)
 606                 OPENSSL_free(a->ptr);
 607         a->ptr=NULL;
 608         a->init=0;
 609         a->flags=0;
 610         return(1);
 611 }
 612
 613 static int ebcdic_read(BIO *b, char *out, int outl)
 614 {
 615         int ret=0;
 616
 617         if (out == NULL || outl == 0) return(0);
 618         if (b->next_bio == NULL) return(0);
 619
 620         ret=BIO_read(b->next_bio,out,outl);
 621         if (ret > 0)
 622                 ascii2ebcdic(out,out,ret);
 623         return(ret);
 624 }
 625
 626 static int ebcdic_write(BIO *b, const char *in, int inl)
 627 {
 628         EBCDIC_OUTBUFF *wbuf;
 629         int ret=0;
 630         int num;
 631         unsigned char n;
 632
 633         if ((in == NULL) || (inl <= 0)) return(0);
 634         if (b->next_bio == NULL) return(0);
 635
 636         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 637
 638         if (inl > (num = wbuf->alloced))
 639         {
 640                 num = num + num;  /* double the size */
 641                 if (num < inl)
 642                         num = inl;
 643                 OPENSSL_free(wbuf);
 644                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 645
 646                 wbuf->alloced = num;
 647                 wbuf->buff[0] = '\0';
 648
 649                 b->ptr=(char *)wbuf;
 650         }
 651
 652         ebcdic2ascii(wbuf->buff, in, inl);
 653
 654         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 655
 656         return(ret);
 657 }
 658
 659 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 660 {
 661         long ret;
 662
 663         if (b->next_bio == NULL) return(0);
 664         switch (cmd)
 665         {
 666         case BIO_CTRL_DUP:
 667                 ret=0L;
 668                 break;
 669         default:
 670                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 671                 break;
 672         }
 673         return(ret);
 674 }
 675
 676 static int ebcdic_gets(BIO *bp, char *buf, int size)
 677 {
 678         int i, ret=0;
 679         if (bp->next_bio == NULL) return(0);
 680 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 681         for (i=0; i<size-1; ++i)
 682         {
 683                 ret = ebcdic_read(bp,&buf[i],1);
 684                 if (ret <= 0)
 685                         break;
 686                 else if (buf[i] == '\n')
 687                 {
 688                         ++i;
 689                         break;
 690                 }
 691         }
 692         if (i < size)
 693                 buf[i] = '\0';
 694         return (ret < 0 && i == 0) ? ret : i;
 695 }
 696
 697 static int ebcdic_puts(BIO *bp, const char *str)
 698 {
 699         if (bp->next_bio == NULL) return(0);
 700         return ebcdic_write(bp, str, strlen(str));
 701 }
 702 #endif
 703
 704 #ifndef OPENSSL_NO_TLSEXT
 705
 706 /* This is a context that we pass to callbacks */
 707 typedef struct tlsextctx_st {
 708    char * servername;
 709    BIO * biodebug;
 710    int extension_error;
 711 } tlsextctx;
 712
 713
 714 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 715         {
 716         tlsextctx * p = (tlsextctx *) arg;
 717         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 718         if (servername && p->biodebug)
 719                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 720
 721         if (!p->servername)
 722                 return SSL_TLSEXT_ERR_NOACK;
 723
 724         if (servername)
 725                 {
 726                 if (strcmp(servername,p->servername))
 727                         return p->extension_error;
 728                 if (ctx2)
 729                         {
 730                         BIO_printf(p->biodebug,"Switching server context.\n");
 731                         SSL_set_SSL_CTX(s,ctx2);
 732                         }
 733                 }
 734         return SSL_TLSEXT_ERR_OK;
 735 }
 736
 737 /* Structure passed to cert status callback */
 738
 739 typedef struct tlsextstatusctx_st {
 740    /* Default responder to use */
 741    char *host, *path, *port;
 742    int use_ssl;
 743    int timeout;
 744    BIO *err;
 745    int verbose;
 746 } tlsextstatusctx;
 747
 748 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
 749
 750 /* Certificate Status callback. This is called when a client includes a
 751  * certificate status request extension.
 752  *
 753  * This is a simplified version. It examines certificates each time and
 754  * makes one OCSP responder query for each request.
 755  *
 756  * A full version would store details such as the OCSP certificate IDs and
 757  * minimise the number of OCSP responses by caching them until they were
 758  * considered "expired".
 759  */
 760
 761 static int cert_status_cb(SSL *s, void *arg)
 762         {
 763         tlsextstatusctx *srctx = arg;
 764         BIO *err = srctx->err;
 765         char *host, *port, *path;
 766         int use_ssl;
 767         unsigned char *rspder = NULL;
 768         int rspderlen;
 769         STACK_OF(OPENSSL_STRING) *aia = NULL;
 770         X509 *x = NULL;
 771         X509_STORE_CTX inctx;
 772         X509_OBJECT obj;
 773         OCSP_REQUEST *req = NULL;
 774         OCSP_RESPONSE *resp = NULL;
 775         OCSP_CERTID *id = NULL;
 776         STACK_OF(X509_EXTENSION) *exts;
 777         int ret = SSL_TLSEXT_ERR_NOACK;
 778         int i;
 779 #if 0
 780 STACK_OF(OCSP_RESPID) *ids;
 781 SSL_get_tlsext_status_ids(s, &ids);
 782 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
 783 #endif
 784         if (srctx->verbose)
 785                 BIO_puts(err, "cert_status: callback called\n");
 786         /* Build up OCSP query from server certificate */
 787         x = SSL_get_certificate(s);
 788         aia = X509_get1_ocsp(x);
 789         if (aia)
 790                 {
 791                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
 792                         &host, &port, &path, &use_ssl))
 793                         {
 794                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
 795                         goto err;
 796                         }
 797                 if (srctx->verbose)
 798                         BIO_printf(err, "cert_status: AIA URL: %s\n",
 799                                         sk_OPENSSL_STRING_value(aia, 0));
 800                 }
 801         else
 802                 {
 803                 if (!srctx->host)
 804                         {
 805                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
 806                         goto done;
 807                         }
 808                 host = srctx->host;
 809                 path = srctx->path;
 810                 port = srctx->port;
 811                 use_ssl = srctx->use_ssl;
 812                 }
 813
 814         if (!X509_STORE_CTX_init(&inctx,
 815                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
 816                                 NULL, NULL))
 817                 goto err;
 818         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
 819                                 X509_get_issuer_name(x),&obj) <= 0)
 820                 {
 821                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
 822                 X509_STORE_CTX_cleanup(&inctx);
 823                 goto done;
 824                 }
 825         req = OCSP_REQUEST_new();
 826         if (!req)
 827                 goto err;
 828         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
 829         X509_free(obj.data.x509);
 830         X509_STORE_CTX_cleanup(&inctx);
 831         if (!id)
 832                 goto err;
 833         if (!OCSP_request_add0_id(req, id))
 834                 goto err;
 835         id = NULL;
 836         /* Add any extensions to the request */
 837         SSL_get_tlsext_status_exts(s, &exts);
 838         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
 839                 {
 840                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
 841                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
 842                         goto err;
 843                 }
 844         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
 845                                         srctx->timeout);
 846         if (!resp)
 847                 {
 848                 BIO_puts(err, "cert_status: error querying responder\n");
 849                 goto done;
 850                 }
 851         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
 852         if (rspderlen <= 0)
 853                 goto err;
 854         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
 855         if (srctx->verbose)
 856                 {
 857                 BIO_puts(err, "cert_status: ocsp response sent:\n");
 858                 OCSP_RESPONSE_print(err, resp, 2);
 859                 }
 860         ret = SSL_TLSEXT_ERR_OK;
 861         done:
 862         if (ret != SSL_TLSEXT_ERR_OK)
 863                 ERR_print_errors(err);
 864         if (aia)
 865                 {
 866                 OPENSSL_free(host);
 867                 OPENSSL_free(path);
 868                 OPENSSL_free(port);
 869                 X509_email_free(aia);
 870                 }
 871         if (id)
 872                 OCSP_CERTID_free(id);
 873         if (req)
 874                 OCSP_REQUEST_free(req);
 875         if (resp)
 876                 OCSP_RESPONSE_free(resp);
 877         return ret;
 878         err:
 879         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
 880         goto done;
 881         }
 882
 883 # ifndef OPENSSL_NO_NEXTPROTONEG
 884 /* This is the context that we pass to next_proto_cb */
 885 typedef struct tlsextnextprotoctx_st {
 886         unsigned char *data;
 887         unsigned int len;
 888 } tlsextnextprotoctx;
 889
 890 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
 891         {
 892         tlsextnextprotoctx *next_proto = arg;
 893
 894         *data = next_proto->data;
 895         *len = next_proto->len;
 896
 897         return SSL_TLSEXT_ERR_OK;
 898         }
 899 # endif  /* ndef OPENSSL_NO_NPN */
 900 #endif
 901
 902 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
 903         {
 904         /* disable resumption for sessions with forward secure ciphers */
 905         return is_forward_secure;
 906         }
 907
 908 int MAIN(int, char **);
 909
 910 #ifndef OPENSSL_NO_JPAKE
 911 static char *jpake_secret = NULL;
 912 #endif
 913
 914 int MAIN(int argc, char *argv[])
 915         {
 916         X509_VERIFY_PARAM *vpm = NULL;
 917         int badarg = 0;
 918         short port=PORT;
 919         char *CApath=NULL,*CAfile=NULL;
 920         unsigned char *context = NULL;
 921         char *dhfile = NULL;
 922 #ifndef OPENSSL_NO_ECDH
 923         char *named_curve = NULL;
 924 #endif
 925         int badop=0,bugs=0;
 926         int ret=1;
 927         int off=0;
 928         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
 929         int state=0;
 930         const SSL_METHOD *meth=NULL;
 931         int socket_type=SOCK_STREAM;
 932         ENGINE *e=NULL;
 933         char *inrand=NULL;
 934         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
 935         char *passarg = NULL, *pass = NULL;
 936         char *dpassarg = NULL, *dpass = NULL;
 937         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
 938         X509 *s_cert = NULL, *s_dcert = NULL;
 939         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
 940         int no_cache = 0, ext_cache = 0;
 941 #ifndef OPENSSL_NO_TLSEXT
 942         EVP_PKEY *s_key2 = NULL;
 943         X509 *s_cert2 = NULL;
 944 #endif
 945 #ifndef OPENSSL_NO_TLSEXT
 946         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
 947 # ifndef OPENSSL_NO_NEXTPROTONEG
 948         const char *next_proto_neg_in = NULL;
 949         tlsextnextprotoctx next_proto;
 950 # endif
 951 #endif
 952 #ifndef OPENSSL_NO_PSK
 953         /* by default do not send a PSK identity hint */
 954         static char *psk_identity_hint=NULL;
 955 #endif
 956 #ifndef OPENSSL_NO_SRP
 957         char *srpuserseed = NULL;
 958         char *srp_verifier_file = NULL;
 959         srpsrvparm p;
 960 #endif
 961 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 962         meth=SSLv23_server_method();
 963 #elif !defined(OPENSSL_NO_SSL3)
 964         meth=SSLv3_server_method();
 965 #elif !defined(OPENSSL_NO_SSL2)
 966         meth=SSLv2_server_method();
 967 #elif !defined(OPENSSL_NO_TLS1)
 968         meth=TLSv1_server_method();
 969 #else
 970   /*  #error no SSL version enabled */
 971 #endif
 972
 973         local_argc=argc;
 974         local_argv=argv;
 975
 976         apps_startup();
 977 #ifdef MONOLITH
 978         s_server_init();
 979 #endif
 980
 981         if (bio_err == NULL)
 982                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 983
 984         if (!load_config(bio_err, NULL))
 985                 goto end;
 986
 987         verify_depth=0;
 988 #ifdef FIONBIO
 989         s_nbio=0;
 990 #endif
 991         s_nbio_test=0;
 992
 993         argc--;
 994         argv++;
 995
 996         while (argc >= 1)
 997                 {
 998                 if      ((strcmp(*argv,"-port") == 0) ||
 999                          (strcmp(*argv,"-accept") == 0))
1000                         {
1001                         if (--argc < 1) goto bad;
1002                         if (!extract_port(*(++argv),&port))
1003                                 goto bad;
1004                         }
1005                 else if (strcmp(*argv,"-verify") == 0)
1006                         {
1007                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1008                         if (--argc < 1) goto bad;
1009                         verify_depth=atoi(*(++argv));
1010                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1011                         }
1012                 else if (strcmp(*argv,"-Verify") == 0)
1013                         {
1014                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1015                                 SSL_VERIFY_CLIENT_ONCE;
1016                         if (--argc < 1) goto bad;
1017                         verify_depth=atoi(*(++argv));
1018                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1019                         }
1020                 else if (strcmp(*argv,"-context") == 0)
1021                         {
1022                         if (--argc < 1) goto bad;
1023                         context= (unsigned char *)*(++argv);
1024                         }
1025                 else if (strcmp(*argv,"-cert") == 0)
1026                         {
1027                         if (--argc < 1) goto bad;
1028                         s_cert_file= *(++argv);
1029                         }
1030                 else if (strcmp(*argv,"-certform") == 0)
1031                         {
1032                         if (--argc < 1) goto bad;
1033                         s_cert_format = str2fmt(*(++argv));
1034                         }
1035                 else if (strcmp(*argv,"-key") == 0)
1036                         {
1037                         if (--argc < 1) goto bad;
1038                         s_key_file= *(++argv);
1039                         }
1040                 else if (strcmp(*argv,"-keyform") == 0)
1041                         {
1042                         if (--argc < 1) goto bad;
1043                         s_key_format = str2fmt(*(++argv));
1044                         }
1045                 else if (strcmp(*argv,"-pass") == 0)
1046                         {
1047                         if (--argc < 1) goto bad;
1048                         passarg = *(++argv);
1049                         }
1050                 else if (strcmp(*argv,"-dhparam") == 0)
1051                         {
1052                         if (--argc < 1) goto bad;
1053                         dhfile = *(++argv);
1054                         }
1055 #ifndef OPENSSL_NO_ECDH
1056                 else if (strcmp(*argv,"-named_curve") == 0)
1057                         {
1058                         if (--argc < 1) goto bad;
1059                         named_curve = *(++argv);
1060                         }
1061 #endif
1062                 else if (strcmp(*argv,"-dcertform") == 0)
1063                         {
1064                         if (--argc < 1) goto bad;
1065                         s_dcert_format = str2fmt(*(++argv));
1066                         }
1067                 else if (strcmp(*argv,"-dcert") == 0)
1068                         {
1069                         if (--argc < 1) goto bad;
1070                         s_dcert_file= *(++argv);
1071                         }
1072                 else if (strcmp(*argv,"-dkeyform") == 0)
1073                         {
1074                         if (--argc < 1) goto bad;
1075                         s_dkey_format = str2fmt(*(++argv));
1076                         }
1077                 else if (strcmp(*argv,"-dpass") == 0)
1078                         {
1079                         if (--argc < 1) goto bad;
1080                         dpassarg = *(++argv);
1081                         }
1082                 else if (strcmp(*argv,"-dkey") == 0)
1083                         {
1084                         if (--argc < 1) goto bad;
1085                         s_dkey_file= *(++argv);
1086                         }
1087                 else if (strcmp(*argv,"-nocert") == 0)
1088                         {
1089                         nocert=1;
1090                         }
1091                 else if (strcmp(*argv,"-CApath") == 0)
1092                         {
1093                         if (--argc < 1) goto bad;
1094                         CApath= *(++argv);
1095                         }
1096                 else if (strcmp(*argv,"-no_cache") == 0)
1097                         no_cache = 1;
1098                 else if (strcmp(*argv,"-ext_cache") == 0)
1099                         ext_cache = 1;
1100                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1101                         {
1102                         if (badarg)
1103                                 goto bad;
1104                         continue;
1105                         }
1106                 else if (strcmp(*argv,"-verify_return_error") == 0)
1107                         verify_return_error = 1;
1108                 else if (strcmp(*argv,"-serverpref") == 0)
1109                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
1110                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
1111                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
1112                 else if (strcmp(*argv,"-cipher") == 0)
1113                         {
1114                         if (--argc < 1) goto bad;
1115                         cipher= *(++argv);
1116                         }
1117                 else if (strcmp(*argv,"-CAfile") == 0)
1118                         {
1119                         if (--argc < 1) goto bad;
1120                         CAfile= *(++argv);
1121                         }
1122 #ifdef FIONBIO
1123                 else if (strcmp(*argv,"-nbio") == 0)
1124                         { s_nbio=1; }
1125 #endif
1126                 else if (strcmp(*argv,"-nbio_test") == 0)
1127                         {
1128 #ifdef FIONBIO
1129                         s_nbio=1;
1130 #endif
1131                         s_nbio_test=1;
1132                         }
1133                 else if (strcmp(*argv,"-debug") == 0)
1134                         { s_debug=1; }
1135 #ifndef OPENSSL_NO_TLSEXT
1136                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1137                         s_tlsextdebug=1;
1138                 else if (strcmp(*argv,"-status") == 0)
1139                         s_tlsextstatus=1;
1140                 else if (strcmp(*argv,"-status_verbose") == 0)
1141                         {
1142                         s_tlsextstatus=1;
1143                         tlscstatp.verbose = 1;
1144                         }
1145                 else if (!strcmp(*argv, "-status_timeout"))
1146                         {
1147                         s_tlsextstatus=1;
1148                         if (--argc < 1) goto bad;
1149                         tlscstatp.timeout = atoi(*(++argv));
1150                         }
1151                 else if (!strcmp(*argv, "-status_url"))
1152                         {
1153                         s_tlsextstatus=1;
1154                         if (--argc < 1) goto bad;
1155                         if (!OCSP_parse_url(*(++argv),
1156                                         &tlscstatp.host,
1157                                         &tlscstatp.port,
1158                                         &tlscstatp.path,
1159                                         &tlscstatp.use_ssl))
1160                                 {
1161                                 BIO_printf(bio_err, "Error parsing URL\n");
1162                                 goto bad;
1163                                 }
1164                         }
1165 #endif
1166                 else if (strcmp(*argv,"-msg") == 0)
1167                         { s_msg=1; }
1168                 else if (strcmp(*argv,"-hack") == 0)
1169                         { hack=1; }
1170                 else if (strcmp(*argv,"-state") == 0)
1171                         { state=1; }
1172                 else if (strcmp(*argv,"-crlf") == 0)
1173                         { s_crlf=1; }
1174                 else if (strcmp(*argv,"-quiet") == 0)
1175                         { s_quiet=1; }
1176                 else if (strcmp(*argv,"-bugs") == 0)
1177                         { bugs=1; }
1178                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1179                         { no_tmp_rsa=1; }
1180                 else if (strcmp(*argv,"-no_dhe") == 0)
1181                         { no_dhe=1; }
1182                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1183                         { no_ecdhe=1; }
1184                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1185                         { no_resume_ephemeral = 1; }
1186 #ifndef OPENSSL_NO_PSK
1187                 else if (strcmp(*argv,"-psk_hint") == 0)
1188                         {
1189                         if (--argc < 1) goto bad;
1190                         psk_identity_hint= *(++argv);
1191                         }
1192                 else if (strcmp(*argv,"-psk") == 0)
1193                         {
1194                         size_t i;
1195
1196                         if (--argc < 1) goto bad;
1197                         psk_key=*(++argv);
1198                         for (i=0; i<strlen(psk_key); i++)
1199                                 {
1200                                 if (isxdigit((int)psk_key[i]))
1201                                         continue;
1202                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1203                                 goto bad;
1204                                 }
1205                         }
1206 #endif
1207 #ifndef OPENSSL_NO_SRP
1208                 else if (strcmp(*argv, "-srpvfile") == 0)
1209                         {
1210                         if (--argc < 1) goto bad;
1211                         srp_verifier_file = *(++argv);
1212                         meth = TLSv1_server_method();
1213                         }
1214                 else if (strcmp(*argv, "-srpuserseed") == 0)
1215                         {
1216                         if (--argc < 1) goto bad;
1217                         srpuserseed = *(++argv);
1218                         meth = TLSv1_server_method();
1219                         }
1220 #endif
1221                 else if (strcmp(*argv,"-www") == 0)
1222                         { www=1; }
1223                 else if (strcmp(*argv,"-WWW") == 0)
1224                         { www=2; }
1225                 else if (strcmp(*argv,"-HTTP") == 0)
1226                         { www=3; }
1227                 else if (strcmp(*argv,"-no_ssl2") == 0)
1228                         { off|=SSL_OP_NO_SSLv2; }
1229                 else if (strcmp(*argv,"-no_ssl3") == 0)
1230                         { off|=SSL_OP_NO_SSLv3; }
1231                 else if (strcmp(*argv,"-no_tls1_2") == 0)
1232                         { off|=SSL_OP_NO_TLSv1_2; }
1233                 else if (strcmp(*argv,"-no_tls1_1") == 0)
1234                         { off|=SSL_OP_NO_TLSv1_1; }
1235                 else if (strcmp(*argv,"-no_tls1") == 0)
1236                         { off|=SSL_OP_NO_TLSv1; }
1237                 else if (strcmp(*argv,"-no_comp") == 0)
1238                         { off|=SSL_OP_NO_COMPRESSION; }
1239 #ifndef OPENSSL_NO_TLSEXT
1240                 else if (strcmp(*argv,"-no_ticket") == 0)
1241                         { off|=SSL_OP_NO_TICKET; }
1242 #endif
1243 #ifndef OPENSSL_NO_SSL2
1244                 else if (strcmp(*argv,"-ssl2") == 0)
1245                         { meth=SSLv2_server_method(); }
1246 #endif
1247 #ifndef OPENSSL_NO_SSL3
1248                 else if (strcmp(*argv,"-ssl3") == 0)
1249                         { meth=SSLv3_server_method(); }
1250 #endif
1251 #ifndef OPENSSL_NO_TLS1
1252                 else if (strcmp(*argv,"-tls1_2") == 0)
1253                         { meth=TLSv1_2_server_method(); }
1254                 else if (strcmp(*argv,"-tls1_1") == 0)
1255                         { meth=TLSv1_1_server_method(); }
1256                 else if (strcmp(*argv,"-tls1") == 0)
1257                         { meth=TLSv1_server_method(); }
1258                 else if (strcmp(*argv,"-tls1_1") == 0)
1259                         { meth=TLSv1_1_server_method(); }
1260 #endif
1261 #ifndef OPENSSL_NO_DTLS1
1262                 else if (strcmp(*argv,"-dtls1") == 0)
1263                         {
1264                         meth=DTLSv1_server_method();
1265                         socket_type = SOCK_DGRAM;
1266                         }
1267                 else if (strcmp(*argv,"-timeout") == 0)
1268                         enable_timeouts = 1;
1269                 else if (strcmp(*argv,"-mtu") == 0)
1270                         {
1271                         if (--argc < 1) goto bad;
1272                         socket_mtu = atol(*(++argv));
1273                         }
1274                 else if (strcmp(*argv, "-chain") == 0)
1275                         cert_chain = 1;
1276 #endif
1277                 else if (strcmp(*argv, "-id_prefix") == 0)
1278                         {
1279                         if (--argc < 1) goto bad;
1280                         session_id_prefix = *(++argv);
1281                         }
1282 #ifndef OPENSSL_NO_ENGINE
1283                 else if (strcmp(*argv,"-engine") == 0)
1284                         {
1285                         if (--argc < 1) goto bad;
1286                         engine_id= *(++argv);
1287                         }
1288 #endif
1289                 else if (strcmp(*argv,"-rand") == 0)
1290                         {
1291                         if (--argc < 1) goto bad;
1292                         inrand= *(++argv);
1293                         }
1294 #ifndef OPENSSL_NO_TLSEXT
1295                 else if (strcmp(*argv,"-servername") == 0)
1296                         {
1297                         if (--argc < 1) goto bad;
1298                         tlsextcbp.servername= *(++argv);
1299                         }
1300                 else if (strcmp(*argv,"-servername_fatal") == 0)
1301                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1302                 else if (strcmp(*argv,"-cert2") == 0)
1303                         {
1304                         if (--argc < 1) goto bad;
1305                         s_cert_file2= *(++argv);
1306                         }
1307                 else if (strcmp(*argv,"-key2") == 0)
1308                         {
1309                         if (--argc < 1) goto bad;
1310                         s_key_file2= *(++argv);
1311                         }
1312 # ifndef OPENSSL_NO_NEXTPROTONEG
1313                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1314                         {
1315                         if (--argc < 1) goto bad;
1316                         next_proto_neg_in = *(++argv);
1317                         }
1318 # endif
1319 #endif
1320 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1321                 else if (strcmp(*argv,"-jpake") == 0)
1322                         {
1323                         if (--argc < 1) goto bad;
1324                         jpake_secret = *(++argv);
1325                         }
1326 #endif
1327                 else
1328                         {
1329                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1330                         badop=1;
1331                         break;
1332                         }
1333                 argc--;
1334                 argv++;
1335                 }
1336         if (badop)
1337                 {
1338 bad:
1339                 sv_usage();
1340                 goto end;
1341                 }
1342
1343 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1344         if (jpake_secret)
1345                 {
1346                 if (psk_key)
1347                         {
1348                         BIO_printf(bio_err,
1349                                    "Can't use JPAKE and PSK together\n");
1350                         goto end;
1351                         }
1352                 psk_identity = "JPAKE";
1353                 if (cipher)
1354                         {
1355                         BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1356                         goto end;
1357                         }
1358                 cipher = "PSK";
1359                 }
1360
1361 #endif
1362
1363         SSL_load_error_strings();
1364         OpenSSL_add_ssl_algorithms();
1365
1366 #ifndef OPENSSL_NO_ENGINE
1367         e = setup_engine(bio_err, engine_id, 1);
1368 #endif
1369
1370         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1371                 {
1372                 BIO_printf(bio_err, "Error getting password\n");
1373                 goto end;
1374                 }
1375
1376
1377         if (s_key_file == NULL)
1378                 s_key_file = s_cert_file;
1379 #ifndef OPENSSL_NO_TLSEXT
1380         if (s_key_file2 == NULL)
1381                 s_key_file2 = s_cert_file2;
1382 #endif
1383
1384         if (nocert == 0)
1385                 {
1386                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1387                        "server certificate private key file");
1388                 if (!s_key)
1389                         {
1390                         ERR_print_errors(bio_err);
1391                         goto end;
1392                         }
1393
1394                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1395                         NULL, e, "server certificate file");
1396
1397                 if (!s_cert)
1398                         {
1399                         ERR_print_errors(bio_err);
1400                         goto end;
1401                         }
1402
1403 #ifndef OPENSSL_NO_TLSEXT
1404                 if (tlsextcbp.servername)
1405                         {
1406                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1407                                 "second server certificate private key file");
1408                         if (!s_key2)
1409                                 {
1410                                 ERR_print_errors(bio_err);
1411                                 goto end;
1412                                 }
1413
1414                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1415                                 NULL, e, "second server certificate file");
1416
1417                         if (!s_cert2)
1418                                 {
1419                                 ERR_print_errors(bio_err);
1420                                 goto end;
1421                                 }
1422                         }
1423 # ifndef OPENSSL_NO_NEXTPROTONEG
1424                 if (next_proto_neg_in)
1425                         {
1426                         unsigned short len;
1427                         next_proto.data = next_protos_parse(&len,
1428                                 next_proto_neg_in);
1429                         if (next_proto.data == NULL)
1430                                 goto end;
1431                         next_proto.len = len;
1432                         }
1433                 else
1434                         {
1435                         next_proto.data = NULL;
1436                         }
1437 # endif
1438 #endif
1439                 }
1440
1441
1442         if (s_dcert_file)
1443                 {
1444
1445                 if (s_dkey_file == NULL)
1446                         s_dkey_file = s_dcert_file;
1447
1448                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1449                                 0, dpass, e,
1450                                "second certificate private key file");
1451                 if (!s_dkey)
1452                         {
1453                         ERR_print_errors(bio_err);
1454                         goto end;
1455                         }
1456
1457                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1458                                 NULL, e, "second server certificate file");
1459
1460                 if (!s_dcert)
1461                         {
1462                         ERR_print_errors(bio_err);
1463                         goto end;
1464                         }
1465
1466                 }
1467
1468         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1469                 && !RAND_status())
1470                 {
1471                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1472                 }
1473         if (inrand != NULL)
1474                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1475                         app_RAND_load_files(inrand));
1476
1477         if (bio_s_out == NULL)
1478                 {
1479                 if (s_quiet && !s_debug && !s_msg)
1480                         {
1481                         bio_s_out=BIO_new(BIO_s_null());
1482                         }
1483                 else
1484                         {
1485                         if (bio_s_out == NULL)
1486                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1487                         }
1488                 }
1489
1490 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1491         if (nocert)
1492 #endif
1493                 {
1494                 s_cert_file=NULL;
1495                 s_key_file=NULL;
1496                 s_dcert_file=NULL;
1497                 s_dkey_file=NULL;
1498 #ifndef OPENSSL_NO_TLSEXT
1499                 s_cert_file2=NULL;
1500                 s_key_file2=NULL;
1501 #endif
1502                 }
1503
1504         ctx=SSL_CTX_new(meth);
1505         if (ctx == NULL)
1506                 {
1507                 ERR_print_errors(bio_err);
1508                 goto end;
1509                 }
1510         if (session_id_prefix)
1511                 {
1512                 if(strlen(session_id_prefix) >= 32)
1513                         BIO_printf(bio_err,
1514 "warning: id_prefix is too long, only one new session will be possible\n");
1515                 else if(strlen(session_id_prefix) >= 16)
1516                         BIO_printf(bio_err,
1517 "warning: id_prefix is too long if you use SSLv2\n");
1518                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1519                         {
1520                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1521                         ERR_print_errors(bio_err);
1522                         goto end;
1523                         }
1524                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1525                 }
1526         SSL_CTX_set_quiet_shutdown(ctx,1);
1527         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1528         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1529         SSL_CTX_set_options(ctx,off);
1530         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1531          * Setting read ahead solves this problem.
1532          */
1533         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1534
1535         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1536         if (no_cache)
1537                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1538         else if (ext_cache)
1539                 init_session_cache_ctx(ctx);
1540         else
1541                 SSL_CTX_sess_set_cache_size(ctx,128);
1542
1543 #if 0
1544         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1545 #endif
1546
1547 #if 0
1548         if (s_cert_file == NULL)
1549                 {
1550                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1551                 goto end;
1552                 }
1553 #endif
1554
1555         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1556                 (!SSL_CTX_set_default_verify_paths(ctx)))
1557                 {
1558                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1559                 ERR_print_errors(bio_err);
1560                 /* goto end; */
1561                 }
1562         if (vpm)
1563                 SSL_CTX_set1_param(ctx, vpm);
1564
1565 #ifndef OPENSSL_NO_TLSEXT
1566         if (s_cert2)
1567                 {
1568                 ctx2=SSL_CTX_new(meth);
1569                 if (ctx2 == NULL)
1570                         {
1571                         ERR_print_errors(bio_err);
1572                         goto end;
1573                         }
1574                 }
1575
1576         if (ctx2)
1577                 {
1578                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1579
1580                 if (session_id_prefix)
1581                         {
1582                         if(strlen(session_id_prefix) >= 32)
1583                                 BIO_printf(bio_err,
1584                                         "warning: id_prefix is too long, only one new session will be possible\n");
1585                         else if(strlen(session_id_prefix) >= 16)
1586                                 BIO_printf(bio_err,
1587                                         "warning: id_prefix is too long if you use SSLv2\n");
1588                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1589                                 {
1590                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1591                                 ERR_print_errors(bio_err);
1592                                 goto end;
1593                                 }
1594                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1595                         }
1596                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1597                 if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1598                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1599                 SSL_CTX_set_options(ctx2,off);
1600                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1601                  * Setting read ahead solves this problem.
1602                  */
1603                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1604
1605                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1606
1607                 if (no_cache)
1608                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1609                 else if (ext_cache)
1610                         init_session_cache_ctx(ctx2);
1611                 else
1612                         SSL_CTX_sess_set_cache_size(ctx2,128);
1613
1614                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1615                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1616                         {
1617                         ERR_print_errors(bio_err);
1618                         }
1619                 if (vpm)
1620                         SSL_CTX_set1_param(ctx2, vpm);
1621                 }
1622
1623 # ifndef OPENSSL_NO_NEXTPROTONEG
1624         if (next_proto.data)
1625                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1626 # endif
1627 #endif
1628
1629 #ifndef OPENSSL_NO_DH
1630         if (!no_dhe)
1631                 {
1632                 DH *dh=NULL;
1633
1634                 if (dhfile)
1635                         dh = load_dh_param(dhfile);
1636                 else if (s_cert_file)
1637                         dh = load_dh_param(s_cert_file);
1638
1639                 if (dh != NULL)
1640                         {
1641                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1642                         }
1643                 else
1644                         {
1645                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1646                         dh=get_dh512();
1647                         }
1648                 (void)BIO_flush(bio_s_out);
1649
1650                 SSL_CTX_set_tmp_dh(ctx,dh);
1651 #ifndef OPENSSL_NO_TLSEXT
1652                 if (ctx2)
1653                         {
1654                         if (!dhfile)
1655                                 {
1656                                 DH *dh2=load_dh_param(s_cert_file2);
1657                                 if (dh2 != NULL)
1658                                         {
1659                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1660                                         (void)BIO_flush(bio_s_out);
1661
1662                                         DH_free(dh);
1663                                         dh = dh2;
1664                                         }
1665                                 }
1666                         SSL_CTX_set_tmp_dh(ctx2,dh);
1667                         }
1668 #endif
1669                 DH_free(dh);
1670                 }
1671 #endif
1672
1673 #ifndef OPENSSL_NO_ECDH
1674         if (!no_ecdhe)
1675                 {
1676                 EC_KEY *ecdh=NULL;
1677
1678                 if (named_curve)
1679                         {
1680                         int nid = OBJ_sn2nid(named_curve);
1681
1682                         if (nid == 0)
1683                                 {
1684                                 BIO_printf(bio_err, "unknown curve name (%s)\n",
1685                                         named_curve);
1686                                 goto end;
1687                                 }
1688                         ecdh = EC_KEY_new_by_curve_name(nid);
1689                         if (ecdh == NULL)
1690                                 {
1691                                 BIO_printf(bio_err, "unable to create curve (%s)\n",
1692                                         named_curve);
1693                                 goto end;
1694                                 }
1695                         }
1696
1697                 if (ecdh != NULL)
1698                         {
1699                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1700                         }
1701                 else
1702                         {
1703                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1704                         ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
1705                         if (ecdh == NULL)
1706                                 {
1707                                 BIO_printf(bio_err, "unable to create curve (nistp256)\n");
1708                                 goto end;
1709                                 }
1710                         }
1711                 (void)BIO_flush(bio_s_out);
1712
1713                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1714 #ifndef OPENSSL_NO_TLSEXT
1715                 if (ctx2)
1716                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1717 #endif
1718                 EC_KEY_free(ecdh);
1719                 }
1720 #endif
1721
1722         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1723                 goto end;
1724 #ifndef OPENSSL_NO_TLSEXT
1725         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1726                 goto end;
1727 #endif
1728         if (s_dcert != NULL)
1729                 {
1730                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1731                         goto end;
1732                 }
1733
1734 #ifndef OPENSSL_NO_RSA
1735 #if 1
1736         if (!no_tmp_rsa)
1737                 {
1738                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1739 #ifndef OPENSSL_NO_TLSEXT
1740                 if (ctx2)
1741                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1742 #endif
1743                 }
1744 #else
1745         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1746                 {
1747                 RSA *rsa;
1748
1749                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1750                 BIO_flush(bio_s_out);
1751
1752                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1753
1754                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1755                         {
1756                         ERR_print_errors(bio_err);
1757                         goto end;
1758                         }
1759 #ifndef OPENSSL_NO_TLSEXT
1760                         if (ctx2)
1761                                 {
1762                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1763                                         {
1764                                         ERR_print_errors(bio_err);
1765                                         goto end;
1766                                         }
1767                                 }
1768 #endif
1769                 RSA_free(rsa);
1770                 BIO_printf(bio_s_out,"\n");
1771                 }
1772 #endif
1773 #endif
1774
1775         if (no_resume_ephemeral)
1776                 {
1777                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
1778 #ifndef OPENSSL_NO_TLSEXT
1779                 if (ctx2)
1780                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
1781 #endif
1782                 }
1783
1784 #ifndef OPENSSL_NO_PSK
1785 #ifdef OPENSSL_NO_JPAKE
1786         if (psk_key != NULL)
1787 #else
1788         if (psk_key != NULL || jpake_secret)
1789 #endif
1790                 {
1791                 if (s_debug)
1792                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
1793                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1794                 }
1795
1796         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1797                 {
1798                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1799                 ERR_print_errors(bio_err);
1800                 goto end;
1801                 }
1802 #endif
1803
1804         if (cipher != NULL)
1805                 {
1806                 if(!SSL_CTX_set_cipher_list(ctx,cipher))
1807                         {
1808                         BIO_printf(bio_err,"error setting cipher list\n");
1809                         ERR_print_errors(bio_err);
1810                         goto end;
1811                         }
1812 #ifndef OPENSSL_NO_TLSEXT
1813                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1814                         {
1815                         BIO_printf(bio_err,"error setting cipher list\n");
1816                         ERR_print_errors(bio_err);
1817                         goto end;
1818                         }
1819 #endif
1820                 }
1821         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1822         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1823                 sizeof s_server_session_id_context);
1824
1825         /* Set DTLS cookie generation and verification callbacks */
1826         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1827         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1828
1829 #ifndef OPENSSL_NO_TLSEXT
1830         if (ctx2)
1831                 {
1832                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1833                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1834                         sizeof s_server_session_id_context);
1835
1836                 tlsextcbp.biodebug = bio_s_out;
1837                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1838                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1839                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1840                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1841                 }
1842 #endif
1843
1844 #ifndef OPENSSL_NO_SRP
1845         if (srp_verifier_file != NULL)
1846                 {
1847                 p.vb = SRP_VBASE_new(srpuserseed);
1848                 if ((ret = SRP_VBASE_init(p.vb, srp_verifier_file)) != SRP_NO_ERROR)
1849                         {
1850                         BIO_printf(bio_err,
1851                                            "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1852                                            srp_verifier_file,ret);
1853                                 goto end;
1854                         }
1855                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
1856                 SSL_CTX_set_srp_cb_arg(ctx, &p);
1857                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1858                 }
1859         else
1860 #endif
1861         if (CAfile != NULL)
1862                 {
1863                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1864 #ifndef OPENSSL_NO_TLSEXT
1865                 if (ctx2)
1866                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1867 #endif
1868                 }
1869
1870         BIO_printf(bio_s_out,"ACCEPT\n");
1871         (void)BIO_flush(bio_s_out);
1872         if (www)
1873                 do_server(port,socket_type,&accept_socket,www_body, context);
1874         else
1875                 do_server(port,socket_type,&accept_socket,sv_body, context);
1876         print_stats(bio_s_out,ctx);
1877         ret=0;
1878 end:
1879         if (ctx != NULL) SSL_CTX_free(ctx);
1880         if (s_cert)
1881                 X509_free(s_cert);
1882         if (s_dcert)
1883                 X509_free(s_dcert);
1884         if (s_key)
1885                 EVP_PKEY_free(s_key);
1886         if (s_dkey)
1887                 EVP_PKEY_free(s_dkey);
1888         if (pass)
1889                 OPENSSL_free(pass);
1890         if (dpass)
1891                 OPENSSL_free(dpass);
1892         free_sessions();
1893 #ifndef OPENSSL_NO_TLSEXT
1894         if (ctx2 != NULL) SSL_CTX_free(ctx2);
1895         if (s_cert2)
1896                 X509_free(s_cert2);
1897         if (s_key2)
1898                 EVP_PKEY_free(s_key2);
1899 #endif
1900         if (bio_s_out != NULL)
1901                 {
1902         BIO_free(bio_s_out);
1903                 bio_s_out=NULL;
1904                 }
1905         apps_shutdown();
1906         OPENSSL_EXIT(ret);
1907         }
1908
1909 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1910         {
1911         BIO_printf(bio,"%4ld items in the session cache\n",
1912                 SSL_CTX_sess_number(ssl_ctx));
1913         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1914                 SSL_CTX_sess_connect(ssl_ctx));
1915         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1916                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1917         BIO_printf(bio,"%4ld client connects that finished\n",
1918                 SSL_CTX_sess_connect_good(ssl_ctx));
1919         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1920                 SSL_CTX_sess_accept(ssl_ctx));
1921         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1922                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1923         BIO_printf(bio,"%4ld server accepts that finished\n",
1924                 SSL_CTX_sess_accept_good(ssl_ctx));
1925         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1926         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1927         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1928         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1929         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1930                 SSL_CTX_sess_cache_full(ssl_ctx),
1931                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1932         }
1933
1934 static int sv_body(char *hostname, int s, unsigned char *context)
1935         {
1936         char *buf=NULL;
1937         fd_set readfds;
1938         int ret=1,width;
1939         int k,i;
1940         unsigned long l;
1941         SSL *con=NULL;
1942         BIO *sbio;
1943         struct timeval timeout;
1944 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1945         struct timeval tv;
1946 #else
1947         struct timeval *timeoutp;
1948 #endif
1949
1950         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1951                 {
1952                 BIO_printf(bio_err,"out of memory\n");
1953                 goto err;
1954                 }
1955 #ifdef FIONBIO
1956         if (s_nbio)
1957                 {
1958                 unsigned long sl=1;
1959
1960                 if (!s_quiet)
1961                         BIO_printf(bio_err,"turning on non blocking io\n");
1962                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1963                         ERR_print_errors(bio_err);
1964                 }
1965 #endif
1966
1967         if (con == NULL) {
1968                 con=SSL_new(ctx);
1969 #ifndef OPENSSL_NO_TLSEXT
1970         if (s_tlsextdebug)
1971                 {
1972                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1973                 SSL_set_tlsext_debug_arg(con, bio_s_out);
1974                 }
1975         if (s_tlsextstatus)
1976                 {
1977                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
1978                 tlscstatp.err = bio_err;
1979                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
1980                 }
1981 #endif
1982 #ifndef OPENSSL_NO_KRB5
1983                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1984                         {
1985                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
1986                                                                 KRB5SVC);
1987                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
1988                                                                 KRB5KEYTAB);
1989                         }
1990 #endif  /* OPENSSL_NO_KRB5 */
1991                 if(context)
1992                       SSL_set_session_id_context(con, context,
1993                                                  strlen((char *)context));
1994         }
1995         SSL_clear(con);
1996 #if 0
1997 #ifdef TLSEXT_TYPE_opaque_prf_input
1998         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
1999 #endif
2000 #endif
2001
2002         if (SSL_version(con) == DTLS1_VERSION)
2003                 {
2004
2005                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2006
2007                 if (enable_timeouts)
2008                         {
2009                         timeout.tv_sec = 0;
2010                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2011                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2012
2013                         timeout.tv_sec = 0;
2014                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2015                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2016                         }
2017
2018                 if (socket_mtu > 28)
2019                         {
2020                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2021                         SSL_set_mtu(con, socket_mtu - 28);
2022                         }
2023                 else
2024                         /* want to do MTU discovery */
2025                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2026
2027         /* turn on cookie exchange */
2028         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2029                 }
2030         else
2031                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2032
2033         if (s_nbio_test)
2034                 {
2035                 BIO *test;
2036
2037                 test=BIO_new(BIO_f_nbio_test());
2038                 sbio=BIO_push(test,sbio);
2039                 }
2040 #ifndef OPENSSL_NO_JPAKE
2041         if(jpake_secret)
2042                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2043 #endif
2044
2045         SSL_set_bio(con,sbio,sbio);
2046         SSL_set_accept_state(con);
2047         /* SSL_set_fd(con,s); */
2048
2049         if (s_debug)
2050                 {
2051                 SSL_set_debug(con, 1);
2052                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2053                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2054                 }
2055         if (s_msg)
2056                 {
2057                 SSL_set_msg_callback(con, msg_cb);
2058                 SSL_set_msg_callback_arg(con, bio_s_out);
2059                 }
2060 #ifndef OPENSSL_NO_TLSEXT
2061         if (s_tlsextdebug)
2062                 {
2063                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2064                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2065                 }
2066 #endif
2067
2068         width=s+1;
2069         for (;;)
2070                 {
2071                 int read_from_terminal;
2072                 int read_from_sslcon;
2073
2074                 read_from_terminal = 0;
2075                 read_from_sslcon = SSL_pending(con);
2076
2077                 if (!read_from_sslcon)
2078                         {
2079                         FD_ZERO(&readfds);
2080 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2081                         openssl_fdset(fileno(stdin),&readfds);
2082 #endif
2083                         openssl_fdset(s,&readfds);
2084                         /* Note: under VMS with SOCKETSHR the second parameter is
2085                          * currently of type (int *) whereas under other systems
2086                          * it is (void *) if you don't have a cast it will choke
2087                          * the compiler: if you do have a cast then you can either
2088                          * go for (int *) or (void *).
2089                          */
2090 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2091                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2092                          * on sockets. As a workaround we timeout the select every
2093                          * second and check for any keypress. In a proper Windows
2094                          * application we wouldn't do this because it is inefficient.
2095                          */
2096                         tv.tv_sec = 1;
2097                         tv.tv_usec = 0;
2098                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2099                         if((i < 0) || (!i && !_kbhit() ) )continue;
2100                         if(_kbhit())
2101                                 read_from_terminal = 1;
2102 #elif defined(OPENSSL_SYS_BEOS_R5)
2103                         /* Under BeOS-R5 the situation is similar to DOS */
2104                         tv.tv_sec = 1;
2105                         tv.tv_usec = 0;
2106                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2107                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2108                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2109                                 continue;
2110                         if (read(fileno(stdin), buf, 0) >= 0)
2111                                 read_from_terminal = 1;
2112                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2113 #else
2114                         if ((SSL_version(con) == DTLS1_VERSION) &&
2115                                 DTLSv1_get_timeout(con, &timeout))
2116                                 timeoutp = &timeout;
2117                         else
2118                                 timeoutp = NULL;
2119
2120                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2121
2122                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2123                                 {
2124                                 BIO_printf(bio_err,"TIMEOUT occured\n");
2125                                 }
2126
2127                         if (i <= 0) continue;
2128                         if (FD_ISSET(fileno(stdin),&readfds))
2129                                 read_from_terminal = 1;
2130 #endif
2131                         if (FD_ISSET(s,&readfds))
2132                                 read_from_sslcon = 1;
2133                         }
2134                 if (read_from_terminal)
2135                         {
2136                         if (s_crlf)
2137                                 {
2138                                 int j, lf_num;
2139
2140                                 i=raw_read_stdin(buf, bufsize/2);
2141                                 lf_num = 0;
2142                                 /* both loops are skipped when i <= 0 */
2143                                 for (j = 0; j < i; j++)
2144                                         if (buf[j] == '\n')
2145                                                 lf_num++;
2146                                 for (j = i-1; j >= 0; j--)
2147                                         {
2148                                         buf[j+lf_num] = buf[j];
2149                                         if (buf[j] == '\n')
2150                                                 {
2151                                                 lf_num--;
2152                                                 i++;
2153                                                 buf[j+lf_num] = '\r';
2154                                                 }
2155                                         }
2156                                 assert(lf_num == 0);
2157                                 }
2158                         else
2159                                 i=raw_read_stdin(buf,bufsize);
2160                         if (!s_quiet)
2161                                 {
2162                                 if ((i <= 0) || (buf[0] == 'Q'))
2163                                         {
2164                                         BIO_printf(bio_s_out,"DONE\n");
2165                                         SHUTDOWN(s);
2166                                         close_accept_socket();
2167                                         ret= -11;
2168                                         goto err;
2169                                         }
2170                                 if ((i <= 0) || (buf[0] == 'q'))
2171                                         {
2172                                         BIO_printf(bio_s_out,"DONE\n");
2173                                         if (SSL_version(con) != DTLS1_VERSION)
2174                         SHUTDOWN(s);
2175         /*                              close_accept_socket();
2176                                         ret= -11;*/
2177                                         goto err;
2178                                         }
2179
2180                                 if ((buf[0] == 'r') &&
2181                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2182                                         {
2183                                         SSL_renegotiate(con);
2184                                         i=SSL_do_handshake(con);
2185                                         printf("SSL_do_handshake -> %d\n",i);
2186                                         i=0; /*13; */
2187                                         continue;
2188                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2189                                         }
2190                                 if ((buf[0] == 'R') &&
2191                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2192                                         {
2193                                         SSL_set_verify(con,
2194                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2195                                         SSL_renegotiate(con);
2196                                         i=SSL_do_handshake(con);
2197                                         printf("SSL_do_handshake -> %d\n",i);
2198                                         i=0; /* 13; */
2199                                         continue;
2200                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2201                                         }
2202                                 if (buf[0] == 'P')
2203                                         {
2204                                         static const char *str="Lets print some clear text\n";
2205                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2206                                         }
2207                                 if (buf[0] == 'S')
2208                                         {
2209                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2210                                         }
2211                                 }
2212 #ifdef CHARSET_EBCDIC
2213                         ebcdic2ascii(buf,buf,i);
2214 #endif
2215                         l=k=0;
2216                         for (;;)
2217                                 {
2218                                 /* should do a select for the write */
2219 #ifdef RENEG
2220 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2221 #endif
2222                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2223                                 switch (SSL_get_error(con,k))
2224                                         {
2225                                 case SSL_ERROR_NONE:
2226                                         break;
2227                                 case SSL_ERROR_WANT_WRITE:
2228                                 case SSL_ERROR_WANT_READ:
2229                                 case SSL_ERROR_WANT_X509_LOOKUP:
2230                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2231                                         break;
2232                                 case SSL_ERROR_SYSCALL:
2233                                 case SSL_ERROR_SSL:
2234                                         BIO_printf(bio_s_out,"ERROR\n");
2235                                         ERR_print_errors(bio_err);
2236                                         ret=1;
2237                                         goto err;
2238                                         /* break; */
2239                                 case SSL_ERROR_ZERO_RETURN:
2240                                         BIO_printf(bio_s_out,"DONE\n");
2241                                         ret=1;
2242                                         goto err;
2243                                         }
2244                                 l+=k;
2245                                 i-=k;
2246                                 if (i <= 0) break;
2247                                 }
2248                         }
2249                 if (read_from_sslcon)
2250                         {
2251                         if (!SSL_is_init_finished(con))
2252                                 {
2253                                 i=init_ssl_connection(con);
2254
2255                                 if (i < 0)
2256                                         {
2257                                         ret=0;
2258                                         goto err;
2259                                         }
2260                                 else if (i == 0)
2261                                         {
2262                                         ret=1;
2263                                         goto err;
2264                                         }
2265                                 }
2266                         else
2267                                 {
2268 again:
2269                                 i=SSL_read(con,(char *)buf,bufsize);
2270                                 switch (SSL_get_error(con,i))
2271                                         {
2272                                 case SSL_ERROR_NONE:
2273 #ifdef CHARSET_EBCDIC
2274                                         ascii2ebcdic(buf,buf,i);
2275 #endif
2276                                         raw_write_stdout(buf,
2277                                                 (unsigned int)i);
2278                                         if (SSL_pending(con)) goto again;
2279                                         break;
2280                                 case SSL_ERROR_WANT_WRITE:
2281                                 case SSL_ERROR_WANT_READ:
2282                                 case SSL_ERROR_WANT_X509_LOOKUP:
2283                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2284                                         break;
2285                                 case SSL_ERROR_SYSCALL:
2286                                 case SSL_ERROR_SSL:
2287                                         BIO_printf(bio_s_out,"ERROR\n");
2288                                         ERR_print_errors(bio_err);
2289                                         ret=1;
2290                                         goto err;
2291                                 case SSL_ERROR_ZERO_RETURN:
2292                                         BIO_printf(bio_s_out,"DONE\n");
2293                                         ret=1;
2294                                         goto err;
2295                                         }
2296                                 }
2297                         }
2298                 }
2299 err:
2300         if (con != NULL)
2301                 {
2302                 BIO_printf(bio_s_out,"shutting down SSL\n");
2303 #if 1
2304                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2305 #else
2306                 SSL_shutdown(con);
2307 #endif
2308                 SSL_free(con);
2309                 }
2310         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2311         if (buf != NULL)
2312                 {
2313                 OPENSSL_cleanse(buf,bufsize);
2314                 OPENSSL_free(buf);
2315                 }
2316         if (ret >= 0)
2317                 BIO_printf(bio_s_out,"ACCEPT\n");
2318         return(ret);
2319         }
2320
2321 static void close_accept_socket(void)
2322         {
2323         BIO_printf(bio_err,"shutdown accept socket\n");
2324         if (accept_socket >= 0)
2325                 {
2326                 SHUTDOWN2(accept_socket);
2327                 }
2328         }
2329
2330 static int init_ssl_connection(SSL *con)
2331         {
2332         int i;
2333         const char *str;
2334         X509 *peer;
2335         long verify_error;
2336         MS_STATIC char buf[BUFSIZ];
2337 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2338         const unsigned char *next_proto_neg;
2339         unsigned next_proto_neg_len;
2340 #endif
2341
2342         if ((i=SSL_accept(con)) <= 0)
2343                 {
2344                 if (BIO_sock_should_retry(i))
2345                         {
2346                         BIO_printf(bio_s_out,"DELAY\n");
2347                         return(1);
2348                         }
2349
2350                 BIO_printf(bio_err,"ERROR\n");
2351                 verify_error=SSL_get_verify_result(con);
2352                 if (verify_error != X509_V_OK)
2353                         {
2354                         BIO_printf(bio_err,"verify error:%s\n",
2355                                 X509_verify_cert_error_string(verify_error));
2356                         }
2357                 else
2358                         ERR_print_errors(bio_err);
2359                 return(0);
2360                 }
2361
2362         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2363
2364         peer=SSL_get_peer_certificate(con);
2365         if (peer != NULL)
2366                 {
2367                 BIO_printf(bio_s_out,"Client certificate\n");
2368                 PEM_write_bio_X509(bio_s_out,peer);
2369                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2370                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2371                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2372                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2373                 X509_free(peer);
2374                 }
2375
2376         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2377                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2378         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2379         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2380 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2381         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2382         if (next_proto_neg)
2383                 {
2384                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2385                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2386                 BIO_printf(bio_s_out, "\n");
2387                 }
2388 #endif
2389         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2390         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2391                 TLS1_FLAGS_TLS_PADDING_BUG)
2392                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
2393 #ifndef OPENSSL_NO_KRB5
2394         if (con->kssl_ctx->client_princ != NULL)
2395                 {
2396                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2397                         con->kssl_ctx->client_princ);
2398                 }
2399 #endif /* OPENSSL_NO_KRB5 */
2400         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2401                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2402         return(1);
2403         }
2404
2405 #ifndef OPENSSL_NO_DH
2406 static DH *load_dh_param(const char *dhfile)
2407         {
2408         DH *ret=NULL;
2409         BIO *bio;
2410
2411         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2412                 goto err;
2413         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2414 err:
2415         if (bio != NULL) BIO_free(bio);
2416         return(ret);
2417         }
2418 #endif
2419
2420 #if 0
2421 static int load_CA(SSL_CTX *ctx, char *file)
2422         {
2423         FILE *in;
2424         X509 *x=NULL;
2425
2426         if ((in=fopen(file,"r")) == NULL)
2427                 return(0);
2428
2429         for (;;)
2430                 {
2431                 if (PEM_read_X509(in,&x,NULL) == NULL)
2432                         break;
2433                 SSL_CTX_add_client_CA(ctx,x);
2434                 }
2435         if (x != NULL) X509_free(x);
2436         fclose(in);
2437         return(1);
2438         }
2439 #endif
2440
2441 static int www_body(char *hostname, int s, unsigned char *context)
2442         {
2443         char *buf=NULL;
2444         int ret=1;
2445         int i,j,k,dot;
2446         SSL *con;
2447         const SSL_CIPHER *c;
2448         BIO *io,*ssl_bio,*sbio;
2449
2450         buf=OPENSSL_malloc(bufsize);
2451         if (buf == NULL) return(0);
2452         io=BIO_new(BIO_f_buffer());
2453         ssl_bio=BIO_new(BIO_f_ssl());
2454         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2455
2456 #ifdef FIONBIO
2457         if (s_nbio)
2458                 {
2459                 unsigned long sl=1;
2460
2461                 if (!s_quiet)
2462                         BIO_printf(bio_err,"turning on non blocking io\n");
2463                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2464                         ERR_print_errors(bio_err);
2465                 }
2466 #endif
2467
2468         /* lets make the output buffer a reasonable size */
2469         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2470
2471         if ((con=SSL_new(ctx)) == NULL) goto err;
2472 #ifndef OPENSSL_NO_TLSEXT
2473                 if (s_tlsextdebug)
2474                         {
2475                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2476                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2477                         }
2478 #endif
2479 #ifndef OPENSSL_NO_KRB5
2480         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
2481                 {
2482                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
2483                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
2484                 }
2485 #endif  /* OPENSSL_NO_KRB5 */
2486         if(context) SSL_set_session_id_context(con, context,
2487                                                strlen((char *)context));
2488
2489         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2490         if (s_nbio_test)
2491                 {
2492                 BIO *test;
2493
2494                 test=BIO_new(BIO_f_nbio_test());
2495                 sbio=BIO_push(test,sbio);
2496                 }
2497         SSL_set_bio(con,sbio,sbio);
2498         SSL_set_accept_state(con);
2499         /* SSL_set_fd(con,s); */
2500         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2501         BIO_push(io,ssl_bio);
2502 #ifdef CHARSET_EBCDIC
2503         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2504 #endif
2505
2506         if (s_debug)
2507                 {
2508                 SSL_set_debug(con, 1);
2509                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2510                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2511                 }
2512         if (s_msg)
2513                 {
2514                 SSL_set_msg_callback(con, msg_cb);
2515                 SSL_set_msg_callback_arg(con, bio_s_out);
2516                 }
2517
2518         for (;;)
2519                 {
2520                 if (hack)
2521                         {
2522                         i=SSL_accept(con);
2523
2524                         switch (SSL_get_error(con,i))
2525                                 {
2526                         case SSL_ERROR_NONE:
2527                                 break;
2528                         case SSL_ERROR_WANT_WRITE:
2529                         case SSL_ERROR_WANT_READ:
2530                         case SSL_ERROR_WANT_X509_LOOKUP:
2531                                 continue;
2532                         case SSL_ERROR_SYSCALL:
2533                         case SSL_ERROR_SSL:
2534                         case SSL_ERROR_ZERO_RETURN:
2535                                 ret=1;
2536                                 goto err;
2537                                 /* break; */
2538                                 }
2539
2540                         SSL_renegotiate(con);
2541                         SSL_write(con,NULL,0);
2542                         }
2543
2544                 i=BIO_gets(io,buf,bufsize-1);
2545                 if (i < 0) /* error */
2546                         {
2547                         if (!BIO_should_retry(io))
2548                                 {
2549                                 if (!s_quiet)
2550                                         ERR_print_errors(bio_err);
2551                                 goto err;
2552                                 }
2553                         else
2554                                 {
2555                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2556 #if defined(OPENSSL_SYS_NETWARE)
2557             delay(1000);
2558 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2559                                 sleep(1);
2560 #endif
2561                                 continue;
2562                                 }
2563                         }
2564                 else if (i == 0) /* end of input */
2565                         {
2566                         ret=1;
2567                         goto end;
2568                         }
2569
2570                 /* else we have data */
2571                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2572                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2573                         {
2574                         char *p;
2575                         X509 *peer;
2576                         STACK_OF(SSL_CIPHER) *sk;
2577                         static const char *space="                          ";
2578
2579                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
2580                         {
2581                         if (strncmp("GET /renegcert", buf, 14) == 0)
2582                                 SSL_set_verify(con,
2583                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2584                         i=SSL_renegotiate(con);
2585                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
2586                         i=SSL_do_handshake(con);
2587                         if (i <= 0)
2588                                 {
2589                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2590                                 ERR_print_errors(bio_err);
2591                                 goto err;
2592                                 }
2593                         /* EVIL HACK! */
2594                         SSL_set_state(con, SSL_ST_ACCEPT);
2595                         i=SSL_do_handshake(con);
2596                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
2597                         if (i <= 0)
2598                                 {
2599                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2600                                 ERR_print_errors(bio_err);
2601                                 goto err;
2602                                 }
2603                         }
2604
2605                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2606                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2607                         BIO_puts(io,"<pre>\n");
2608 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2609                         BIO_puts(io,"\n");
2610                         for (i=0; i<local_argc; i++)
2611                                 {
2612                                 BIO_puts(io,local_argv[i]);
2613                                 BIO_write(io," ",1);
2614                                 }
2615                         BIO_puts(io,"\n");
2616
2617                         BIO_printf(io,
2618                                 "Secure Renegotiation IS%s supported\n",
2619                                 SSL_get_secure_renegotiation_support(con) ?
2620                                                         "" : " NOT");
2621
2622                         /* The following is evil and should not really
2623                          * be done */
2624                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2625                         sk=SSL_get_ciphers(con);
2626                         j=sk_SSL_CIPHER_num(sk);
2627                         for (i=0; i<j; i++)
2628                                 {
2629                                 c=sk_SSL_CIPHER_value(sk,i);
2630                                 BIO_printf(io,"%-11s:%-25s",
2631                                         SSL_CIPHER_get_version(c),
2632                                         SSL_CIPHER_get_name(c));
2633                                 if ((((i+1)%2) == 0) && (i+1 != j))
2634                                         BIO_puts(io,"\n");
2635                                 }
2636                         BIO_puts(io,"\n");
2637                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2638                         if (p != NULL)
2639                                 {
2640                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2641                                 j=i=0;
2642                                 while (*p)
2643                                         {
2644                                         if (*p == ':')
2645                                                 {
2646                                                 BIO_write(io,space,26-j);
2647                                                 i++;
2648                                                 j=0;
2649                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2650                                                 }
2651                                         else
2652                                                 {
2653                                                 BIO_write(io,p,1);
2654                                                 j++;
2655                                                 }
2656                                         p++;
2657                                         }
2658                                 BIO_puts(io,"\n");
2659                                 }
2660                         BIO_printf(io,(SSL_cache_hit(con)
2661                                 ?"---\nReused, "
2662                                 :"---\nNew, "));
2663                         c=SSL_get_current_cipher(con);
2664                         BIO_printf(io,"%s, Cipher is %s\n",
2665                                 SSL_CIPHER_get_version(c),
2666                                 SSL_CIPHER_get_name(c));
2667                         SSL_SESSION_print(io,SSL_get_session(con));
2668                         BIO_printf(io,"---\n");
2669                         print_stats(io,SSL_get_SSL_CTX(con));
2670                         BIO_printf(io,"---\n");
2671                         peer=SSL_get_peer_certificate(con);
2672                         if (peer != NULL)
2673                                 {
2674                                 BIO_printf(io,"Client certificate\n");
2675                                 X509_print(io,peer);
2676                                 PEM_write_bio_X509(io,peer);
2677                                 }
2678                         else
2679                                 BIO_puts(io,"no client certificate available\n");
2680                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2681                         break;
2682                         }
2683                 else if ((www == 2 || www == 3)
2684                          && (strncmp("GET /",buf,5) == 0))
2685                         {
2686                         BIO *file;
2687                         char *p,*e;
2688                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2689
2690                         /* skip the '/' */
2691                         p= &(buf[5]);
2692
2693                         dot = 1;
2694                         for (e=p; *e != '\0'; e++)
2695                                 {
2696                                 if (e[0] == ' ')
2697                                         break;
2698
2699                                 switch (dot)
2700                                         {
2701                                 case 1:
2702                                         dot = (e[0] == '.') ? 2 : 0;
2703                                         break;
2704                                 case 2:
2705                                         dot = (e[0] == '.') ? 3 : 0;
2706                                         break;
2707                                 case 3:
2708                                         dot = (e[0] == '/') ? -1 : 0;
2709                                         break;
2710                                         }
2711                                 if (dot == 0)
2712                                         dot = (e[0] == '/') ? 1 : 0;
2713                                 }
2714                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2715
2716                         if (*e == '\0')
2717                                 {
2718                                 BIO_puts(io,text);
2719                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2720                                 break;
2721                                 }
2722                         *e='\0';
2723
2724                         if (dot)
2725                                 {
2726                                 BIO_puts(io,text);
2727                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2728                                 break;
2729                                 }
2730
2731                         if (*p == '/')
2732                                 {
2733                                 BIO_puts(io,text);
2734                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2735                                 break;
2736                                 }
2737
2738 #if 0
2739                         /* append if a directory lookup */
2740                         if (e[-1] == '/')
2741                                 strcat(p,"index.html");
2742 #endif
2743
2744                         /* if a directory, do the index thang */
2745                         if (app_isdir(p)>0)
2746                                 {
2747 #if 0 /* must check buffer size */
2748                                 strcat(p,"/index.html");
2749 #else
2750                                 BIO_puts(io,text);
2751                                 BIO_printf(io,"'%s' is a directory\r\n",p);
2752                                 break;
2753 #endif
2754                                 }
2755
2756                         if ((file=BIO_new_file(p,"r")) == NULL)
2757                                 {
2758                                 BIO_puts(io,text);
2759                                 BIO_printf(io,"Error opening '%s'\r\n",p);
2760                                 ERR_print_errors(io);
2761                                 break;
2762                                 }
2763
2764                         if (!s_quiet)
2765                                 BIO_printf(bio_err,"FILE:%s\n",p);
2766
2767                         if (www == 2)
2768                                 {
2769                                 i=strlen(p);
2770                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2771                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2772                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2773                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2774                                 else
2775                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2776                                 }
2777                         /* send the file */
2778                         for (;;)
2779                                 {
2780                                 i=BIO_read(file,buf,bufsize);
2781                                 if (i <= 0) break;
2782
2783 #ifdef RENEG
2784                                 total_bytes+=i;
2785                                 fprintf(stderr,"%d\n",i);
2786                                 if (total_bytes > 3*1024)
2787                                         {
2788                                         total_bytes=0;
2789                                         fprintf(stderr,"RENEGOTIATE\n");
2790                                         SSL_renegotiate(con);
2791                                         }
2792 #endif
2793
2794                                 for (j=0; j<i; )
2795                                         {
2796 #ifdef RENEG
2797 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2798 #endif
2799                                         k=BIO_write(io,&(buf[j]),i-j);
2800                                         if (k <= 0)
2801                                                 {
2802                                                 if (!BIO_should_retry(io))
2803                                                         goto write_error;
2804                                                 else
2805                                                         {
2806                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2807                                                         }
2808                                                 }
2809                                         else
2810                                                 {
2811                                                 j+=k;
2812                                                 }
2813                                         }
2814                                 }
2815 write_error:
2816                         BIO_free(file);
2817                         break;
2818                         }
2819                 }
2820
2821         for (;;)
2822                 {
2823                 i=(int)BIO_flush(io);
2824                 if (i <= 0)
2825                         {
2826                         if (!BIO_should_retry(io))
2827                                 break;
2828                         }
2829                 else
2830                         break;
2831                 }
2832 end:
2833 #if 1
2834         /* make sure we re-use sessions */
2835         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2836 #else
2837         /* This kills performance */
2838 /*      SSL_shutdown(con); A shutdown gets sent in the
2839  *      BIO_free_all(io) procession */
2840 #endif
2841
2842 err:
2843
2844         if (ret >= 0)
2845                 BIO_printf(bio_s_out,"ACCEPT\n");
2846
2847         if (buf != NULL) OPENSSL_free(buf);
2848         if (io != NULL) BIO_free_all(io);
2849 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2850         return(ret);
2851         }
2852
2853 #ifndef OPENSSL_NO_RSA
2854 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2855         {
2856         BIGNUM *bn = NULL;
2857         static RSA *rsa_tmp=NULL;
2858
2859         if (!rsa_tmp && ((bn = BN_new()) == NULL))
2860                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
2861         if (!rsa_tmp && bn)
2862                 {
2863                 if (!s_quiet)
2864                         {
2865                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
2866                         (void)BIO_flush(bio_err);
2867                         }
2868                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2869                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
2870                         {
2871                         if(rsa_tmp) RSA_free(rsa_tmp);
2872                         rsa_tmp = NULL;
2873                         }
2874                 if (!s_quiet)
2875                         {
2876                         BIO_printf(bio_err,"\n");
2877                         (void)BIO_flush(bio_err);
2878                         }
2879                 BN_free(bn);
2880                 }
2881         return(rsa_tmp);
2882         }
2883 #endif
2884
2885 #define MAX_SESSION_ID_ATTEMPTS 10
2886 static int generate_session_id(const SSL *ssl, unsigned char *id,
2887                                 unsigned int *id_len)
2888         {
2889         unsigned int count = 0;
2890         do      {
2891                 RAND_pseudo_bytes(id, *id_len);
2892                 /* Prefix the session_id with the required prefix. NB: If our
2893                  * prefix is too long, clip it - but there will be worse effects
2894                  * anyway, eg. the server could only possibly create 1 session
2895                  * ID (ie. the prefix!) so all future session negotiations will
2896                  * fail due to conflicts. */
2897                 memcpy(id, session_id_prefix,
2898                         (strlen(session_id_prefix) < *id_len) ?
2899                         strlen(session_id_prefix) : *id_len);
2900                 }
2901         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
2902                 (++count < MAX_SESSION_ID_ATTEMPTS));
2903         if(count >= MAX_SESSION_ID_ATTEMPTS)
2904                 return 0;
2905         return 1;
2906         }
2907
2908 /* By default s_server uses an in-memory cache which caches SSL_SESSION
2909  * structures without any serialisation. This hides some bugs which only
2910  * become apparent in deployed servers. By implementing a basic external
2911  * session cache some issues can be debugged using s_server.
2912  */
2913
2914 typedef struct simple_ssl_session_st
2915         {
2916         unsigned char *id;
2917         unsigned int idlen;
2918         unsigned char *der;
2919         int derlen;
2920         struct simple_ssl_session_st *next;
2921         } simple_ssl_session;
2922
2923 static simple_ssl_session *first = NULL;
2924
2925 static int add_session(SSL *ssl, SSL_SESSION *session)
2926         {
2927         simple_ssl_session *sess;
2928         unsigned char *p;
2929
2930         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
2931
2932         sess->idlen = SSL_SESSION_get_id_len(session);
2933         sess->derlen = i2d_SSL_SESSION(session, NULL);
2934
2935         sess->id = BUF_memdup(SSL_SESSION_get0_id(session), sess->idlen);
2936
2937         sess->der = OPENSSL_malloc(sess->derlen);
2938         p = sess->der;
2939         i2d_SSL_SESSION(session, &p);
2940
2941         sess->next = first;
2942         first = sess;
2943         BIO_printf(bio_err, "New session added to external cache\n");
2944         return 0;
2945         }
2946
2947 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
2948                                         int *do_copy)
2949         {
2950         simple_ssl_session *sess;
2951         *do_copy = 0;
2952         for (sess = first; sess; sess = sess->next)
2953                 {
2954                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
2955                         {
2956                         const unsigned char *p = sess->der;
2957                         BIO_printf(bio_err, "Lookup session: cache hit\n");
2958                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
2959                         }
2960                 }
2961         BIO_printf(bio_err, "Lookup session: cache miss\n");
2962         return NULL;
2963         }
2964
2965 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
2966         {
2967         simple_ssl_session *sess, *prev = NULL;
2968         const unsigned char *id = SSL_SESSION_get0_id(session);
2969         unsigned int idlen = SSL_SESSION_get_id_len(session);
2970         for (sess = first; sess; sess = sess->next)
2971                 {
2972                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
2973                         {
2974                         if(prev)
2975                                 prev->next = sess->next;
2976                         else
2977                                 first = sess->next;
2978                         OPENSSL_free(sess->id);
2979                         OPENSSL_free(sess->der);
2980                         OPENSSL_free(sess);
2981                         return;
2982                         }
2983                 prev = sess;
2984                 }
2985         }
2986
2987 static void init_session_cache_ctx(SSL_CTX *sctx)
2988         {
2989         SSL_CTX_set_session_cache_mode(sctx,
2990                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
2991         SSL_CTX_sess_set_new_cb(sctx, add_session);
2992         SSL_CTX_sess_set_get_cb(sctx, get_session);
2993         SSL_CTX_sess_set_remove_cb(sctx, del_session);
2994         }
2995
2996 static void free_sessions(void)
2997         {
2998         simple_ssl_session *sess, *tsess;
2999         for (sess = first; sess;)
3000                 {
3001                 OPENSSL_free(sess->id);
3002                 OPENSSL_free(sess->der);
3003                 tsess = sess;
3004                 sess = sess->next;
3005                 OPENSSL_free(tsess);
3006                 }
3007         first = NULL;
3008         }
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018