apps/s_server.c

   1 /* apps/s_server.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 113  * ECC cipher suite support in OpenSSL originally developed by
 114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 115  */
 116 /* ====================================================================
 117  * Copyright 2005 Nokia. All rights reserved.
 118  *
 119  * The portions of the attached software ("Contribution") is developed by
 120  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 121  * license.
 122  *
 123  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 124  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 125  * support (see RFC 4279) to OpenSSL.
 126  *
 127  * No patent licenses or other rights except those expressly stated in
 128  * the OpenSSL open source license shall be deemed granted or received
 129  * expressly, by implication, estoppel, or otherwise.
 130  *
 131  * No assurances are provided by Nokia that the Contribution does not
 132  * infringe the patent or other intellectual property rights of any third
 133  * party or that the license provides you with all the necessary rights
 134  * to make use of the Contribution.
 135  *
 136  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 137  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 138  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 139  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 140  * OTHERWISE.
 141  */
 142
 143 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
 144  * deprecated functions for openssl-internal code */
 145 #ifdef OPENSSL_NO_DEPRECATED
 146 #undef OPENSSL_NO_DEPRECATED
 147 #endif
 148
 149 #include <assert.h>
 150 #include <ctype.h>
 151 #include <stdio.h>
 152 #include <stdlib.h>
 153 #include <string.h>
 154
 155 #include <openssl/e_os2.h>
 156 #ifdef OPENSSL_NO_STDIO
 157 #define APPS_WIN16
 158 #endif
 159
 160 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
 161 #include <sys/types.h>
 162 #endif
 163
 164 /* With IPv6, it looks like Digital has mixed up the proper order of
 165    recursive header file inclusion, resulting in the compiler complaining
 166    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 167    is needed to have fileno() declared correctly...  So let's define u_int */
 168 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 169 #define __U_INT
 170 typedef unsigned int u_int;
 171 #endif
 172
 173 #include <openssl/lhash.h>
 174 #include <openssl/bn.h>
 175 #define USE_SOCKETS
 176 #include "apps.h"
 177 #include <openssl/err.h>
 178 #include <openssl/pem.h>
 179 #include <openssl/x509.h>
 180 #include <openssl/ssl.h>
 181 #include <openssl/rand.h>
 182 #include <openssl/ocsp.h>
 183 #ifndef OPENSSL_NO_DH
 184 #include <openssl/dh.h>
 185 #endif
 186 #ifndef OPENSSL_NO_RSA
 187 #include <openssl/rsa.h>
 188 #endif
 189 #ifndef OPENSSL_NO_SRP
 190 #include <openssl/srp.h>
 191 #endif
 192 #include "s_apps.h"
 193 #include "timeouts.h"
 194
 195 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 196 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 197 #undef FIONBIO
 198 #endif
 199
 200 #if defined(OPENSSL_SYS_BEOS_R5)
 201 #include <fcntl.h>
 202 #endif
 203
 204 #ifndef OPENSSL_NO_RSA
 205 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 206 #endif
 207 static int not_resumable_sess_cb(SSL *s, int is_forward_secure);
 208 static int sv_body(char *hostname, int s, int stype, unsigned char *context);
 209 static int www_body(char *hostname, int s, int stype, unsigned char *context);
 210 static int rev_body(char *hostname, int s, int stype, unsigned char *context);
 211 static void close_accept_socket(void );
 212 static void sv_usage(void);
 213 static int init_ssl_connection(SSL *s);
 214 static void print_stats(BIO *bp,SSL_CTX *ctx);
 215 static int generate_session_id(const SSL *ssl, unsigned char *id,
 216                                 unsigned int *id_len);
 217 static void init_session_cache_ctx(SSL_CTX *sctx);
 218 static void free_sessions(void);
 219 #ifndef OPENSSL_NO_DH
 220 static DH *load_dh_param(const char *dhfile);
 221 #endif
 222
 223 #ifdef MONOLITH
 224 static void s_server_init(void);
 225 #endif
 226
 227 #ifndef OPENSSL_NO_TLSEXT
 228
 229 static const unsigned char auth_ext_data[]={TLSEXT_AUTHZDATAFORMAT_dtcp};
 230
 231 static unsigned char *generated_supp_data = NULL;
 232
 233 static const unsigned char *most_recent_supplemental_data = NULL;
 234 static size_t most_recent_supplemental_data_length = 0;
 235
 236 static int client_provided_server_authz = 0;
 237 static int client_provided_client_authz = 0;
 238
 239 #endif
 240
 241 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 242
 243 #undef BUFSIZZ
 244 #define BUFSIZZ 16*1024
 245 static int bufsize=BUFSIZZ;
 246 static int accept_socket= -1;
 247
 248 #define TEST_CERT       "server.pem"
 249 #ifndef OPENSSL_NO_TLSEXT
 250 #define TEST_CERT2      "server2.pem"
 251 #endif
 252 #undef PROG
 253 #define PROG            s_server_main
 254
 255 extern int verify_depth, verify_return_error, verify_quiet;
 256
 257 static int s_server_verify=SSL_VERIFY_NONE;
 258 static int s_server_session_id_context = 1; /* anything will do */
 259 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL, *s_chain_file=NULL;
 260 #ifndef OPENSSL_NO_TLSEXT
 261 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
 262 #endif
 263 static char *s_dcert_file=NULL,*s_dkey_file=NULL, *s_dchain_file=NULL;
 264 #ifdef FIONBIO
 265 static int s_nbio=0;
 266 #endif
 267 static int s_nbio_test=0;
 268 int s_crlf=0;
 269 static SSL_CTX *ctx=NULL;
 270 #ifndef OPENSSL_NO_TLSEXT
 271 static SSL_CTX *ctx2=NULL;
 272 #endif
 273 static int www=0;
 274
 275 static BIO *bio_s_out=NULL;
 276 static BIO *bio_s_msg = NULL;
 277 static int s_debug=0;
 278 #ifndef OPENSSL_NO_TLSEXT
 279 static int s_tlsextdebug=0;
 280 static int s_tlsextstatus=0;
 281 static int cert_status_cb(SSL *s, void *arg);
 282 #endif
 283 static int no_resume_ephemeral = 0;
 284 static int s_msg=0;
 285 static int s_quiet=0;
 286 static int s_ign_eof=0;
 287 static int s_brief=0;
 288
 289 static char *keymatexportlabel=NULL;
 290 static int keymatexportlen=20;
 291
 292 static int hack=0;
 293 #ifndef OPENSSL_NO_ENGINE
 294 static char *engine_id=NULL;
 295 #endif
 296 static const char *session_id_prefix=NULL;
 297
 298 static int enable_timeouts = 0;
 299 static long socket_mtu;
 300 #ifndef OPENSSL_NO_DTLS1
 301 static int cert_chain = 0;
 302 #endif
 303
 304 #ifndef OPENSSL_NO_TLSEXT
 305 static int suppdata_cb(SSL *s, unsigned short supp_data_type,
 306                        const unsigned char *in,
 307                        unsigned short inlen, int *al,
 308                        void *arg);
 309
 310 static int auth_suppdata_generate_cb(SSL *s, unsigned short supp_data_type,
 311                                      const unsigned char **out,
 312                                      unsigned short *outlen, int *al, void *arg);
 313
 314 static int authz_tlsext_generate_cb(SSL *s, unsigned short ext_type,
 315                                     const unsigned char **out, unsigned short *outlen,
 316                                     int *al, void *arg);
 317
 318 static int authz_tlsext_cb(SSL *s, unsigned short ext_type,
 319                            const unsigned char *in,
 320                            unsigned short inlen, int *al,
 321                            void *arg);
 322
 323 static BIO *serverinfo_in = NULL;
 324 static const char *s_serverinfo_file = NULL;
 325
 326 static int c_auth = 0;
 327 static int c_auth_require_reneg = 0;
 328 #endif
 329
 330 #ifndef OPENSSL_NO_PSK
 331 static char *psk_identity="Client_identity";
 332 char *psk_key=NULL; /* by default PSK is not used */
 333
 334 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
 335         unsigned char *psk, unsigned int max_psk_len)
 336         {
 337         unsigned int psk_len = 0;
 338         int ret;
 339         BIGNUM *bn = NULL;
 340
 341         if (s_debug)
 342                 BIO_printf(bio_s_out,"psk_server_cb\n");
 343         if (!identity)
 344                 {
 345                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
 346                 goto out_err;
 347                 }
 348         if (s_debug)
 349                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
 350                         identity ? (int)strlen(identity) : 0, identity);
 351
 352         /* here we could lookup the given identity e.g. from a database */
 353         if (strcmp(identity, psk_identity) != 0)
 354                 {
 355                 BIO_printf(bio_s_out, "PSK error: client identity not found"
 356                            " (got '%s' expected '%s')\n", identity,
 357                            psk_identity);
 358                 goto out_err;
 359                 }
 360         if (s_debug)
 361                 BIO_printf(bio_s_out, "PSK client identity found\n");
 362
 363         /* convert the PSK key to binary */
 364         ret = BN_hex2bn(&bn, psk_key);
 365         if (!ret)
 366                 {
 367                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 368                 if (bn)
 369                         BN_free(bn);
 370                 return 0;
 371                 }
 372         if (BN_num_bytes(bn) > (int)max_psk_len)
 373                 {
 374                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 375                         max_psk_len, BN_num_bytes(bn));
 376                 BN_free(bn);
 377                 return 0;
 378                 }
 379
 380         ret = BN_bn2bin(bn, psk);
 381         BN_free(bn);
 382
 383         if (ret < 0)
 384                 goto out_err;
 385         psk_len = (unsigned int)ret;
 386
 387         if (s_debug)
 388                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
 389         return psk_len;
 390  out_err:
 391         if (s_debug)
 392                 BIO_printf(bio_err, "Error in PSK server callback\n");
 393         return 0;
 394         }
 395 #endif
 396
 397 #ifndef OPENSSL_NO_SRP
 398 /* This is a context that we pass to callbacks */
 399 typedef struct srpsrvparm_st
 400         {
 401         char *login;
 402         SRP_VBASE *vb;
 403         SRP_user_pwd *user;
 404         } srpsrvparm;
 405
 406 /* This callback pretends to require some asynchronous logic in order to obtain
 407    a verifier. When the callback is called for a new connection we return
 408    with a negative value. This will provoke the accept etc to return with
 409    an LOOKUP_X509. The main logic of the reinvokes the suspended call
 410    (which would normally occur after a worker has finished) and we
 411    set the user parameters.
 412 */
 413 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
 414         {
 415         srpsrvparm *p = (srpsrvparm *)arg;
 416         if (p->login == NULL && p->user == NULL )
 417                 {
 418                 p->login = SSL_get_srp_username(s);
 419                 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
 420                 return (-1) ;
 421                 }
 422
 423         if (p->user == NULL)
 424                 {
 425                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
 426                 return SSL3_AL_FATAL;
 427                 }
 428         if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
 429                                      p->user->info) < 0)
 430                 {
 431                 *ad = SSL_AD_INTERNAL_ERROR;
 432                 return SSL3_AL_FATAL;
 433                 }
 434         BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
 435         /* need to check whether there are memory leaks */
 436         p->user = NULL;
 437         p->login = NULL;
 438         return SSL_ERROR_NONE;
 439         }
 440
 441 #endif
 442
 443 #ifdef MONOLITH
 444 static void s_server_init(void)
 445         {
 446         accept_socket=-1;
 447         s_server_verify=SSL_VERIFY_NONE;
 448         s_dcert_file=NULL;
 449         s_dkey_file=NULL;
 450         s_dchain_file=NULL;
 451         s_cert_file=TEST_CERT;
 452         s_key_file=NULL;
 453         s_chain_file=NULL;
 454 #ifndef OPENSSL_NO_TLSEXT
 455         s_cert_file2=TEST_CERT2;
 456         s_key_file2=NULL;
 457         ctx2=NULL;
 458 #endif
 459 #ifdef FIONBIO
 460         s_nbio=0;
 461 #endif
 462         s_nbio_test=0;
 463         ctx=NULL;
 464         www=0;
 465
 466         bio_s_out=NULL;
 467         s_debug=0;
 468         s_msg=0;
 469         s_quiet=0;
 470         s_brief=0;
 471         hack=0;
 472 #ifndef OPENSSL_NO_ENGINE
 473         engine_id=NULL;
 474 #endif
 475         }
 476 #endif
 477
 478 static void sv_usage(void)
 479         {
 480         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 481         BIO_printf(bio_err,"\n");
 482         BIO_printf(bio_err," -accept port  - TCP/IP port to accept on (default is %d)\n",PORT);
 483         BIO_printf(bio_err," -unix path    - unix domain socket to accept on\n");
 484         BIO_printf(bio_err," -unlink       - for -unix, unlink existing socket first\n");
 485         BIO_printf(bio_err," -context arg  - set session ID context\n");
 486         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 487         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 488         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 489         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 490         BIO_printf(bio_err," -naccept arg  - terminate after 'arg' connections\n");
 491 #ifndef OPENSSL_NO_TLSEXT
 492         BIO_printf(bio_err," -serverinfo arg - PEM serverinfo file for certificate\n");
 493         BIO_printf(bio_err," -auth               - send and receive RFC 5878 TLS auth extensions and supplemental data\n");
 494         BIO_printf(bio_err," -auth_require_reneg - Do not send TLS auth extensions until renegotiation\n");
 495 #endif
 496     BIO_printf(bio_err," -no_resumption_on_reneg - set SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION flag\n");
 497         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
 498                            "                 The CRL(s) are appended to the certificate file\n");
 499         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
 500                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
 501                            "                 the certificate file.\n");
 502         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 503         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 504         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 505         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 506         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 507         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 508         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 509         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 510         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 511         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 512         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 513         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 514 #ifndef OPENSSL_NO_ECDH
 515         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 516                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 517                            "                 (default is nistp256).\n");
 518 #endif
 519 #ifdef FIONBIO
 520         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 521 #endif
 522         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 523         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 524         BIO_printf(bio_err," -debug        - Print more output\n");
 525         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 526         BIO_printf(bio_err," -state        - Print the SSL states\n");
 527         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 528         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 529         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 530         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 531         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 532         BIO_printf(bio_err," -quiet        - No server output\n");
 533         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 534 #ifndef OPENSSL_NO_PSK
 535         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
 536         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 537 # ifndef OPENSSL_NO_JPAKE
 538         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 539 # endif
 540 #endif
 541 #ifndef OPENSSL_NO_SRP
 542         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
 543         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
 544 #endif
 545         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 546         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 547         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
 548         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
 549         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 550         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 551         BIO_printf(bio_err," -dtls1_2      - Just talk DTLSv1.2\n");
 552         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 553         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
 554         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 555         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 556         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 557         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 558         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
 559         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
 560 #ifndef OPENSSL_NO_DH
 561         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 562 #endif
 563 #ifndef OPENSSL_NO_ECDH
 564         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 565 #endif
 566         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
 567         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 568         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 569         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 570         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 571         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 572 #ifndef OPENSSL_NO_ENGINE
 573         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 574 #endif
 575         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 576         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 577 #ifndef OPENSSL_NO_TLSEXT
 578         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 579         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
 580         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 581         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 582         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 583         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 584         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
 585         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
 586         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 587 # ifndef OPENSSL_NO_NEXTPROTONEG
 588         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
 589 # endif
 590         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 591         BIO_printf(bio_err," -alpn arg  - set the advertised protocols for the ALPN extension (comma-separated list)\n");
 592 #endif
 593         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 594         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 595         }
 596
 597 static int local_argc=0;
 598 static char **local_argv;
 599
 600 #ifdef CHARSET_EBCDIC
 601 static int ebcdic_new(BIO *bi);
 602 static int ebcdic_free(BIO *a);
 603 static int ebcdic_read(BIO *b, char *out, int outl);
 604 static int ebcdic_write(BIO *b, const char *in, int inl);
 605 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 606 static int ebcdic_gets(BIO *bp, char *buf, int size);
 607 static int ebcdic_puts(BIO *bp, const char *str);
 608
 609 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 610 static BIO_METHOD methods_ebcdic=
 611         {
 612         BIO_TYPE_EBCDIC_FILTER,
 613         "EBCDIC/ASCII filter",
 614         ebcdic_write,
 615         ebcdic_read,
 616         ebcdic_puts,
 617         ebcdic_gets,
 618         ebcdic_ctrl,
 619         ebcdic_new,
 620         ebcdic_free,
 621         };
 622
 623 typedef struct
 624 {
 625         size_t  alloced;
 626         char    buff[1];
 627 } EBCDIC_OUTBUFF;
 628
 629 BIO_METHOD *BIO_f_ebcdic_filter()
 630 {
 631         return(&methods_ebcdic);
 632 }
 633
 634 static int ebcdic_new(BIO *bi)
 635 {
 636         EBCDIC_OUTBUFF *wbuf;
 637
 638         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 639         wbuf->alloced = 1024;
 640         wbuf->buff[0] = '\0';
 641
 642         bi->ptr=(char *)wbuf;
 643         bi->init=1;
 644         bi->flags=0;
 645         return(1);
 646 }
 647
 648 static int ebcdic_free(BIO *a)
 649 {
 650         if (a == NULL) return(0);
 651         if (a->ptr != NULL)
 652                 OPENSSL_free(a->ptr);
 653         a->ptr=NULL;
 654         a->init=0;
 655         a->flags=0;
 656         return(1);
 657 }
 658
 659 static int ebcdic_read(BIO *b, char *out, int outl)
 660 {
 661         int ret=0;
 662
 663         if (out == NULL || outl == 0) return(0);
 664         if (b->next_bio == NULL) return(0);
 665
 666         ret=BIO_read(b->next_bio,out,outl);
 667         if (ret > 0)
 668                 ascii2ebcdic(out,out,ret);
 669         return(ret);
 670 }
 671
 672 static int ebcdic_write(BIO *b, const char *in, int inl)
 673 {
 674         EBCDIC_OUTBUFF *wbuf;
 675         int ret=0;
 676         int num;
 677         unsigned char n;
 678
 679         if ((in == NULL) || (inl <= 0)) return(0);
 680         if (b->next_bio == NULL) return(0);
 681
 682         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 683
 684         if (inl > (num = wbuf->alloced))
 685         {
 686                 num = num + num;  /* double the size */
 687                 if (num < inl)
 688                         num = inl;
 689                 OPENSSL_free(wbuf);
 690                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 691
 692                 wbuf->alloced = num;
 693                 wbuf->buff[0] = '\0';
 694
 695                 b->ptr=(char *)wbuf;
 696         }
 697
 698         ebcdic2ascii(wbuf->buff, in, inl);
 699
 700         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 701
 702         return(ret);
 703 }
 704
 705 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 706 {
 707         long ret;
 708
 709         if (b->next_bio == NULL) return(0);
 710         switch (cmd)
 711         {
 712         case BIO_CTRL_DUP:
 713                 ret=0L;
 714                 break;
 715         default:
 716                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 717                 break;
 718         }
 719         return(ret);
 720 }
 721
 722 static int ebcdic_gets(BIO *bp, char *buf, int size)
 723 {
 724         int i, ret=0;
 725         if (bp->next_bio == NULL) return(0);
 726 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 727         for (i=0; i<size-1; ++i)
 728         {
 729                 ret = ebcdic_read(bp,&buf[i],1);
 730                 if (ret <= 0)
 731                         break;
 732                 else if (buf[i] == '\n')
 733                 {
 734                         ++i;
 735                         break;
 736                 }
 737         }
 738         if (i < size)
 739                 buf[i] = '\0';
 740         return (ret < 0 && i == 0) ? ret : i;
 741 }
 742
 743 static int ebcdic_puts(BIO *bp, const char *str)
 744 {
 745         if (bp->next_bio == NULL) return(0);
 746         return ebcdic_write(bp, str, strlen(str));
 747 }
 748 #endif
 749
 750 #ifndef OPENSSL_NO_TLSEXT
 751
 752 /* This is a context that we pass to callbacks */
 753 typedef struct tlsextctx_st {
 754    char * servername;
 755    BIO * biodebug;
 756    int extension_error;
 757 } tlsextctx;
 758
 759
 760 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 761         {
 762         tlsextctx * p = (tlsextctx *) arg;
 763         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 764         if (servername && p->biodebug)
 765                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 766
 767         if (!p->servername)
 768                 return SSL_TLSEXT_ERR_NOACK;
 769
 770         if (servername)
 771                 {
 772                 if (strcmp(servername,p->servername))
 773                         return p->extension_error;
 774                 if (ctx2)
 775                         {
 776                         BIO_printf(p->biodebug,"Switching server context.\n");
 777                         SSL_set_SSL_CTX(s,ctx2);
 778                         }
 779                 }
 780         return SSL_TLSEXT_ERR_OK;
 781 }
 782
 783 /* Structure passed to cert status callback */
 784
 785 typedef struct tlsextstatusctx_st {
 786    /* Default responder to use */
 787    char *host, *path, *port;
 788    int use_ssl;
 789    int timeout;
 790    BIO *err;
 791    int verbose;
 792 } tlsextstatusctx;
 793
 794 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
 795
 796 /* Certificate Status callback. This is called when a client includes a
 797  * certificate status request extension.
 798  *
 799  * This is a simplified version. It examines certificates each time and
 800  * makes one OCSP responder query for each request.
 801  *
 802  * A full version would store details such as the OCSP certificate IDs and
 803  * minimise the number of OCSP responses by caching them until they were
 804  * considered "expired".
 805  */
 806
 807 static int cert_status_cb(SSL *s, void *arg)
 808         {
 809         tlsextstatusctx *srctx = arg;
 810         BIO *err = srctx->err;
 811         char *host, *port, *path;
 812         int use_ssl;
 813         unsigned char *rspder = NULL;
 814         int rspderlen;
 815         STACK_OF(OPENSSL_STRING) *aia = NULL;
 816         X509 *x = NULL;
 817         X509_STORE_CTX inctx;
 818         X509_OBJECT obj;
 819         OCSP_REQUEST *req = NULL;
 820         OCSP_RESPONSE *resp = NULL;
 821         OCSP_CERTID *id = NULL;
 822         STACK_OF(X509_EXTENSION) *exts;
 823         int ret = SSL_TLSEXT_ERR_NOACK;
 824         int i;
 825 #if 0
 826 STACK_OF(OCSP_RESPID) *ids;
 827 SSL_get_tlsext_status_ids(s, &ids);
 828 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
 829 #endif
 830         if (srctx->verbose)
 831                 BIO_puts(err, "cert_status: callback called\n");
 832         /* Build up OCSP query from server certificate */
 833         x = SSL_get_certificate(s);
 834         aia = X509_get1_ocsp(x);
 835         if (aia)
 836                 {
 837                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
 838                         &host, &port, &path, &use_ssl))
 839                         {
 840                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
 841                         goto err;
 842                         }
 843                 if (srctx->verbose)
 844                         BIO_printf(err, "cert_status: AIA URL: %s\n",
 845                                         sk_OPENSSL_STRING_value(aia, 0));
 846                 }
 847         else
 848                 {
 849                 if (!srctx->host)
 850                         {
 851                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
 852                         goto done;
 853                         }
 854                 host = srctx->host;
 855                 path = srctx->path;
 856                 port = srctx->port;
 857                 use_ssl = srctx->use_ssl;
 858                 }
 859
 860         if (!X509_STORE_CTX_init(&inctx,
 861                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
 862                                 NULL, NULL))
 863                 goto err;
 864         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
 865                                 X509_get_issuer_name(x),&obj) <= 0)
 866                 {
 867                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
 868                 X509_STORE_CTX_cleanup(&inctx);
 869                 goto done;
 870                 }
 871         req = OCSP_REQUEST_new();
 872         if (!req)
 873                 goto err;
 874         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
 875         X509_free(obj.data.x509);
 876         X509_STORE_CTX_cleanup(&inctx);
 877         if (!id)
 878                 goto err;
 879         if (!OCSP_request_add0_id(req, id))
 880                 goto err;
 881         id = NULL;
 882         /* Add any extensions to the request */
 883         SSL_get_tlsext_status_exts(s, &exts);
 884         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
 885                 {
 886                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
 887                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
 888                         goto err;
 889                 }
 890         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
 891                                         srctx->timeout);
 892         if (!resp)
 893                 {
 894                 BIO_puts(err, "cert_status: error querying responder\n");
 895                 goto done;
 896                 }
 897         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
 898         if (rspderlen <= 0)
 899                 goto err;
 900         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
 901         if (srctx->verbose)
 902                 {
 903                 BIO_puts(err, "cert_status: ocsp response sent:\n");
 904                 OCSP_RESPONSE_print(err, resp, 2);
 905                 }
 906         ret = SSL_TLSEXT_ERR_OK;
 907         done:
 908         if (ret != SSL_TLSEXT_ERR_OK)
 909                 ERR_print_errors(err);
 910         if (aia)
 911                 {
 912                 OPENSSL_free(host);
 913                 OPENSSL_free(path);
 914                 OPENSSL_free(port);
 915                 X509_email_free(aia);
 916                 }
 917         if (id)
 918                 OCSP_CERTID_free(id);
 919         if (req)
 920                 OCSP_REQUEST_free(req);
 921         if (resp)
 922                 OCSP_RESPONSE_free(resp);
 923         return ret;
 924         err:
 925         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
 926         goto done;
 927         }
 928
 929 # ifndef OPENSSL_NO_NEXTPROTONEG
 930 /* This is the context that we pass to next_proto_cb */
 931 typedef struct tlsextnextprotoctx_st {
 932         unsigned char *data;
 933         unsigned int len;
 934 } tlsextnextprotoctx;
 935
 936 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
 937         {
 938         tlsextnextprotoctx *next_proto = arg;
 939
 940         *data = next_proto->data;
 941         *len = next_proto->len;
 942
 943         return SSL_TLSEXT_ERR_OK;
 944         }
 945 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 946
 947 /* This the context that we pass to alpn_cb */
 948 typedef struct tlsextalpnctx_st {
 949         unsigned char *data;
 950         unsigned short len;
 951 } tlsextalpnctx;
 952
 953 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 954         {
 955         tlsextalpnctx *alpn_ctx = arg;
 956
 957         if (!s_quiet)
 958                 {
 959                 /* We can assume that |in| is syntactically valid. */
 960                 unsigned i;
 961                 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
 962                 for (i = 0; i < inlen; )
 963                         {
 964                         if (i)
 965                                 BIO_write(bio_s_out, ", ", 2);
 966                         BIO_write(bio_s_out, &in[i + 1], in[i]);
 967                         i += in[i] + 1;
 968                         }
 969                 BIO_write(bio_s_out, "\n", 1);
 970                 }
 971
 972         if (SSL_select_next_proto((unsigned char**) out, outlen, alpn_ctx->data, alpn_ctx->len, in, inlen) !=
 973             OPENSSL_NPN_NEGOTIATED)
 974                 {
 975                 return SSL_TLSEXT_ERR_NOACK;
 976                 }
 977
 978         if (!s_quiet)
 979                 {
 980                 BIO_printf(bio_s_out, "ALPN protocols selected: ");
 981                 BIO_write(bio_s_out, *out, *outlen);
 982                 BIO_write(bio_s_out, "\n", 1);
 983                 }
 984
 985         return SSL_TLSEXT_ERR_OK;
 986         }
 987 #endif  /* ndef OPENSSL_NO_TLSEXT */
 988
 989 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
 990         {
 991         /* disable resumption for sessions with forward secure ciphers */
 992         return is_forward_secure;
 993         }
 994
 995 int MAIN(int, char **);
 996
 997 #ifndef OPENSSL_NO_JPAKE
 998 static char *jpake_secret = NULL;
 999 #define no_jpake !jpake_secret
1000 #else
1001 #define no_jpake 1
1002 #endif
1003 #ifndef OPENSSL_NO_SRP
1004         static srpsrvparm srp_callback_parm;
1005 #endif
1006 static char *srtp_profiles = NULL;
1007
1008 int MAIN(int argc, char *argv[])
1009         {
1010         X509_VERIFY_PARAM *vpm = NULL;
1011         int badarg = 0;
1012         short port=PORT;
1013         const char *unix_path=NULL;
1014         int unlink_unix_path=0;
1015         int (*server_cb)(char *hostname, int s, int stype, unsigned char *context);
1016         char *CApath=NULL,*CAfile=NULL;
1017         char *chCApath=NULL,*chCAfile=NULL;
1018         char *vfyCApath=NULL,*vfyCAfile=NULL;
1019         unsigned char *context = NULL;
1020         char *dhfile = NULL;
1021         int badop=0;
1022         int ret=1;
1023         int build_chain = 0;
1024         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
1025         int state=0;
1026         const SSL_METHOD *meth=NULL;
1027         int socket_type=SOCK_STREAM;
1028         ENGINE *e=NULL;
1029         char *inrand=NULL;
1030         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
1031         char *passarg = NULL, *pass = NULL;
1032         char *dpassarg = NULL, *dpass = NULL;
1033         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
1034         X509 *s_cert = NULL, *s_dcert = NULL;
1035         STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
1036         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
1037         int no_cache = 0, ext_cache = 0;
1038         int rev = 0, naccept = -1;
1039         int sdebug = 0;
1040 #ifndef OPENSSL_NO_TLSEXT
1041         EVP_PKEY *s_key2 = NULL;
1042         X509 *s_cert2 = NULL;
1043         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
1044 # ifndef OPENSSL_NO_NEXTPROTONEG
1045         const char *next_proto_neg_in = NULL;
1046         tlsextnextprotoctx next_proto = { NULL, 0};
1047 # endif
1048         const char *alpn_in = NULL;
1049         tlsextalpnctx alpn_ctx = { NULL, 0};
1050 #endif
1051 #ifndef OPENSSL_NO_PSK
1052         /* by default do not send a PSK identity hint */
1053         static char *psk_identity_hint=NULL;
1054 #endif
1055 #ifndef OPENSSL_NO_SRP
1056         char *srpuserseed = NULL;
1057         char *srp_verifier_file = NULL;
1058 #endif
1059         SSL_EXCERT *exc = NULL;
1060         SSL_CONF_CTX *cctx = NULL;
1061         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
1062
1063         char *crl_file = NULL;
1064         int crl_format = FORMAT_PEM;
1065         int crl_download = 0;
1066         STACK_OF(X509_CRL) *crls = NULL;
1067
1068         meth=SSLv23_server_method();
1069
1070         local_argc=argc;
1071         local_argv=argv;
1072
1073         apps_startup();
1074 #ifdef MONOLITH
1075         s_server_init();
1076 #endif
1077
1078         if (bio_err == NULL)
1079                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
1080
1081         if (!load_config(bio_err, NULL))
1082                 goto end;
1083
1084         cctx = SSL_CONF_CTX_new();
1085         if (!cctx)
1086                 goto end;
1087         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
1088         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
1089
1090         verify_depth=0;
1091 #ifdef FIONBIO
1092         s_nbio=0;
1093 #endif
1094         s_nbio_test=0;
1095
1096         argc--;
1097         argv++;
1098
1099         while (argc >= 1)
1100                 {
1101                 if      ((strcmp(*argv,"-port") == 0) ||
1102                          (strcmp(*argv,"-accept") == 0))
1103                         {
1104                         if (--argc < 1) goto bad;
1105                         if (!extract_port(*(++argv),&port))
1106                                 goto bad;
1107                         }
1108                 else if (strcmp(*argv,"-unix") == 0)
1109                         {
1110 #ifdef NO_SYS_UN_H
1111                         BIO_printf(bio_err, "unix domain sockets unsupported\n");
1112                         goto bad;
1113 #else
1114                         if (--argc < 1) goto bad;
1115                         unix_path = *(++argv);
1116 #endif
1117                         }
1118                 else if (strcmp(*argv,"-unlink") == 0)
1119                         {
1120 #ifdef NO_SYS_UN_H
1121                         BIO_printf(bio_err, "unix domain sockets unsupported\n");
1122                         goto bad;
1123 #else
1124                         unlink_unix_path = 1;
1125 #endif
1126                         }
1127                 else if (strcmp(*argv,"-naccept") == 0)
1128                         {
1129                         if (--argc < 1) goto bad;
1130                         naccept = atol(*(++argv));
1131                         if (naccept <= 0)
1132                                 {
1133                                 BIO_printf(bio_err, "bad accept value %s\n",
1134                                                         *argv);
1135                                 goto bad;
1136                                 }
1137                         }
1138                 else if (strcmp(*argv,"-verify") == 0)
1139                         {
1140                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1141                         if (--argc < 1) goto bad;
1142                         verify_depth=atoi(*(++argv));
1143                         if (!s_quiet)
1144                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1145                         }
1146                 else if (strcmp(*argv,"-Verify") == 0)
1147                         {
1148                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1149                                 SSL_VERIFY_CLIENT_ONCE;
1150                         if (--argc < 1) goto bad;
1151                         verify_depth=atoi(*(++argv));
1152                         if (!s_quiet)
1153                                 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1154                         }
1155                 else if (strcmp(*argv,"-context") == 0)
1156                         {
1157                         if (--argc < 1) goto bad;
1158                         context= (unsigned char *)*(++argv);
1159                         }
1160                 else if (strcmp(*argv,"-cert") == 0)
1161                         {
1162                         if (--argc < 1) goto bad;
1163                         s_cert_file= *(++argv);
1164                         }
1165                 else if (strcmp(*argv,"-CRL") == 0)
1166                         {
1167                         if (--argc < 1) goto bad;
1168                         crl_file= *(++argv);
1169                         }
1170                 else if (strcmp(*argv,"-crl_download") == 0)
1171                         crl_download = 1;
1172 #ifndef OPENSSL_NO_TLSEXT
1173                 else if (strcmp(*argv,"-serverinfo") == 0)
1174                         {
1175                         if (--argc < 1) goto bad;
1176                         s_serverinfo_file = *(++argv);
1177                         }
1178                 else if (strcmp(*argv,"-auth") == 0)
1179                         {
1180                         c_auth = 1;
1181                         }
1182 #endif
1183                 else if (strcmp(*argv,"-auth_require_reneg") == 0)
1184                         {
1185                         c_auth_require_reneg = 1;
1186                         }
1187                 else if (strcmp(*argv,"-certform") == 0)
1188                         {
1189                         if (--argc < 1) goto bad;
1190                         s_cert_format = str2fmt(*(++argv));
1191                         }
1192                 else if (strcmp(*argv,"-key") == 0)
1193                         {
1194                         if (--argc < 1) goto bad;
1195                         s_key_file= *(++argv);
1196                         }
1197                 else if (strcmp(*argv,"-keyform") == 0)
1198                         {
1199                         if (--argc < 1) goto bad;
1200                         s_key_format = str2fmt(*(++argv));
1201                         }
1202                 else if (strcmp(*argv,"-pass") == 0)
1203                         {
1204                         if (--argc < 1) goto bad;
1205                         passarg = *(++argv);
1206                         }
1207                 else if (strcmp(*argv,"-cert_chain") == 0)
1208                         {
1209                         if (--argc < 1) goto bad;
1210                         s_chain_file= *(++argv);
1211                         }
1212                 else if (strcmp(*argv,"-dhparam") == 0)
1213                         {
1214                         if (--argc < 1) goto bad;
1215                         dhfile = *(++argv);
1216                         }
1217                 else if (strcmp(*argv,"-dcertform") == 0)
1218                         {
1219                         if (--argc < 1) goto bad;
1220                         s_dcert_format = str2fmt(*(++argv));
1221                         }
1222                 else if (strcmp(*argv,"-dcert") == 0)
1223                         {
1224                         if (--argc < 1) goto bad;
1225                         s_dcert_file= *(++argv);
1226                         }
1227                 else if (strcmp(*argv,"-dkeyform") == 0)
1228                         {
1229                         if (--argc < 1) goto bad;
1230                         s_dkey_format = str2fmt(*(++argv));
1231                         }
1232                 else if (strcmp(*argv,"-dpass") == 0)
1233                         {
1234                         if (--argc < 1) goto bad;
1235                         dpassarg = *(++argv);
1236                         }
1237                 else if (strcmp(*argv,"-dkey") == 0)
1238                         {
1239                         if (--argc < 1) goto bad;
1240                         s_dkey_file= *(++argv);
1241                         }
1242                 else if (strcmp(*argv,"-dcert_chain") == 0)
1243                         {
1244                         if (--argc < 1) goto bad;
1245                         s_dchain_file= *(++argv);
1246                         }
1247                 else if (strcmp(*argv,"-nocert") == 0)
1248                         {
1249                         nocert=1;
1250                         }
1251                 else if (strcmp(*argv,"-CApath") == 0)
1252                         {
1253                         if (--argc < 1) goto bad;
1254                         CApath= *(++argv);
1255                         }
1256                 else if (strcmp(*argv,"-chainCApath") == 0)
1257                         {
1258                         if (--argc < 1) goto bad;
1259                         chCApath= *(++argv);
1260                         }
1261                 else if (strcmp(*argv,"-verifyCApath") == 0)
1262                         {
1263                         if (--argc < 1) goto bad;
1264                         vfyCApath= *(++argv);
1265                         }
1266                 else if (strcmp(*argv,"-no_cache") == 0)
1267                         no_cache = 1;
1268                 else if (strcmp(*argv,"-ext_cache") == 0)
1269                         ext_cache = 1;
1270                 else if (strcmp(*argv,"-CRLform") == 0)
1271                         {
1272                         if (--argc < 1) goto bad;
1273                         crl_format = str2fmt(*(++argv));
1274                         }
1275                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1276                         {
1277                         if (badarg)
1278                                 goto bad;
1279                         continue;
1280                         }
1281                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
1282                         {
1283                         if (badarg)
1284                                 goto bad;
1285                         continue;
1286                         }
1287                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
1288                         {
1289                         if (badarg)
1290                                 goto bad;
1291                         continue;
1292                         }
1293                 else if (strcmp(*argv,"-verify_return_error") == 0)
1294                         verify_return_error = 1;
1295                 else if (strcmp(*argv,"-verify_quiet") == 0)
1296                         verify_quiet = 1;
1297                 else if (strcmp(*argv,"-build_chain") == 0)
1298                         build_chain = 1;
1299                 else if (strcmp(*argv,"-CAfile") == 0)
1300                         {
1301                         if (--argc < 1) goto bad;
1302                         CAfile= *(++argv);
1303                         }
1304                 else if (strcmp(*argv,"-chainCAfile") == 0)
1305                         {
1306                         if (--argc < 1) goto bad;
1307                         chCAfile= *(++argv);
1308                         }
1309                 else if (strcmp(*argv,"-verifyCAfile") == 0)
1310                         {
1311                         if (--argc < 1) goto bad;
1312                         vfyCAfile= *(++argv);
1313                         }
1314 #ifdef FIONBIO
1315                 else if (strcmp(*argv,"-nbio") == 0)
1316                         { s_nbio=1; }
1317 #endif
1318                 else if (strcmp(*argv,"-nbio_test") == 0)
1319                         {
1320 #ifdef FIONBIO
1321                         s_nbio=1;
1322 #endif
1323                         s_nbio_test=1;
1324                         }
1325                 else if (strcmp(*argv,"-ign_eof") == 0)
1326                         s_ign_eof=1;
1327                 else if (strcmp(*argv,"-no_ign_eof") == 0)
1328                         s_ign_eof=0;
1329                 else if (strcmp(*argv,"-debug") == 0)
1330                         { s_debug=1; }
1331 #ifndef OPENSSL_NO_TLSEXT
1332                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1333                         s_tlsextdebug=1;
1334                 else if (strcmp(*argv,"-status") == 0)
1335                         s_tlsextstatus=1;
1336                 else if (strcmp(*argv,"-status_verbose") == 0)
1337                         {
1338                         s_tlsextstatus=1;
1339                         tlscstatp.verbose = 1;
1340                         }
1341                 else if (!strcmp(*argv, "-status_timeout"))
1342                         {
1343                         s_tlsextstatus=1;
1344                         if (--argc < 1) goto bad;
1345                         tlscstatp.timeout = atoi(*(++argv));
1346                         }
1347                 else if (!strcmp(*argv, "-status_url"))
1348                         {
1349                         s_tlsextstatus=1;
1350                         if (--argc < 1) goto bad;
1351                         if (!OCSP_parse_url(*(++argv),
1352                                         &tlscstatp.host,
1353                                         &tlscstatp.port,
1354                                         &tlscstatp.path,
1355                                         &tlscstatp.use_ssl))
1356                                 {
1357                                 BIO_printf(bio_err, "Error parsing URL\n");
1358                                 goto bad;
1359                                 }
1360                         }
1361 #endif
1362                 else if (strcmp(*argv,"-msg") == 0)
1363                         { s_msg=1; }
1364                 else if (strcmp(*argv,"-msgfile") == 0)
1365                         {
1366                         if (--argc < 1) goto bad;
1367                         bio_s_msg = BIO_new_file(*(++argv), "w");
1368                         }
1369 #ifndef OPENSSL_NO_SSL_TRACE
1370                 else if (strcmp(*argv,"-trace") == 0)
1371                         { s_msg=2; }
1372 #endif
1373                 else if (strcmp(*argv,"-security_debug") == 0)
1374                         { sdebug=1; }
1375                 else if (strcmp(*argv,"-security_debug_verbose") == 0)
1376                         { sdebug=2; }
1377                 else if (strcmp(*argv,"-hack") == 0)
1378                         { hack=1; }
1379                 else if (strcmp(*argv,"-state") == 0)
1380                         { state=1; }
1381                 else if (strcmp(*argv,"-crlf") == 0)
1382                         { s_crlf=1; }
1383                 else if (strcmp(*argv,"-quiet") == 0)
1384                         { s_quiet=1; }
1385                 else if (strcmp(*argv,"-brief") == 0)
1386                         {
1387                         s_quiet=1;
1388                         s_brief=1;
1389                         verify_quiet=1;
1390                         }
1391                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1392                         { no_tmp_rsa=1; }
1393                 else if (strcmp(*argv,"-no_dhe") == 0)
1394                         { no_dhe=1; }
1395                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1396                         { no_ecdhe=1; }
1397                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1398                         { no_resume_ephemeral = 1; }
1399 #ifndef OPENSSL_NO_PSK
1400                 else if (strcmp(*argv,"-psk_hint") == 0)
1401                         {
1402                         if (--argc < 1) goto bad;
1403                         psk_identity_hint= *(++argv);
1404                         }
1405                 else if (strcmp(*argv,"-psk") == 0)
1406                         {
1407                         size_t i;
1408
1409                         if (--argc < 1) goto bad;
1410                         psk_key=*(++argv);
1411                         for (i=0; i<strlen(psk_key); i++)
1412                                 {
1413                                 if (isxdigit((unsigned char)psk_key[i]))
1414                                         continue;
1415                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1416                                 goto bad;
1417                                 }
1418                         }
1419 #endif
1420 #ifndef OPENSSL_NO_SRP
1421                 else if (strcmp(*argv, "-srpvfile") == 0)
1422                         {
1423                         if (--argc < 1) goto bad;
1424                         srp_verifier_file = *(++argv);
1425                         meth = TLSv1_server_method();
1426                         }
1427                 else if (strcmp(*argv, "-srpuserseed") == 0)
1428                         {
1429                         if (--argc < 1) goto bad;
1430                         srpuserseed = *(++argv);
1431                         meth = TLSv1_server_method();
1432                         }
1433 #endif
1434                 else if (strcmp(*argv,"-rev") == 0)
1435                         { rev=1; }
1436                 else if (strcmp(*argv,"-www") == 0)
1437                         { www=1; }
1438                 else if (strcmp(*argv,"-WWW") == 0)
1439                         { www=2; }
1440                 else if (strcmp(*argv,"-HTTP") == 0)
1441                         { www=3; }
1442 #ifndef OPENSSL_NO_SSL2
1443                 else if (strcmp(*argv,"-ssl2") == 0)
1444                         { meth=SSLv2_server_method(); }
1445 #endif
1446 #ifndef OPENSSL_NO_SSL3
1447                 else if (strcmp(*argv,"-ssl3") == 0)
1448                         { meth=SSLv3_server_method(); }
1449 #endif
1450 #ifndef OPENSSL_NO_TLS1
1451                 else if (strcmp(*argv,"-tls1") == 0)
1452                         { meth=TLSv1_server_method(); }
1453                 else if (strcmp(*argv,"-tls1_1") == 0)
1454                         { meth=TLSv1_1_server_method(); }
1455                 else if (strcmp(*argv,"-tls1_2") == 0)
1456                         { meth=TLSv1_2_server_method(); }
1457 #endif
1458 #ifndef OPENSSL_NO_DTLS1
1459                 else if (strcmp(*argv,"-dtls") == 0)
1460                         {
1461                         meth=DTLS_server_method();
1462                         socket_type = SOCK_DGRAM;
1463                         }
1464                 else if (strcmp(*argv,"-dtls1") == 0)
1465                         {
1466                         meth=DTLSv1_server_method();
1467                         socket_type = SOCK_DGRAM;
1468                         }
1469                 else if (strcmp(*argv,"-dtls1_2") == 0)
1470                         {
1471                         meth=DTLSv1_2_server_method();
1472                         socket_type = SOCK_DGRAM;
1473                         }
1474                 else if (strcmp(*argv,"-timeout") == 0)
1475                         enable_timeouts = 1;
1476                 else if (strcmp(*argv,"-mtu") == 0)
1477                         {
1478                         if (--argc < 1) goto bad;
1479                         socket_mtu = atol(*(++argv));
1480                         }
1481                 else if (strcmp(*argv, "-chain") == 0)
1482                         cert_chain = 1;
1483 #endif
1484                 else if (strcmp(*argv, "-id_prefix") == 0)
1485                         {
1486                         if (--argc < 1) goto bad;
1487                         session_id_prefix = *(++argv);
1488                         }
1489 #ifndef OPENSSL_NO_ENGINE
1490                 else if (strcmp(*argv,"-engine") == 0)
1491                         {
1492                         if (--argc < 1) goto bad;
1493                         engine_id= *(++argv);
1494                         }
1495 #endif
1496                 else if (strcmp(*argv,"-rand") == 0)
1497                         {
1498                         if (--argc < 1) goto bad;
1499                         inrand= *(++argv);
1500                         }
1501 #ifndef OPENSSL_NO_TLSEXT
1502                 else if (strcmp(*argv,"-servername") == 0)
1503                         {
1504                         if (--argc < 1) goto bad;
1505                         tlsextcbp.servername= *(++argv);
1506                         }
1507                 else if (strcmp(*argv,"-servername_fatal") == 0)
1508                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1509                 else if (strcmp(*argv,"-cert2") == 0)
1510                         {
1511                         if (--argc < 1) goto bad;
1512                         s_cert_file2= *(++argv);
1513                         }
1514                 else if (strcmp(*argv,"-key2") == 0)
1515                         {
1516                         if (--argc < 1) goto bad;
1517                         s_key_file2= *(++argv);
1518                         }
1519 # ifndef OPENSSL_NO_NEXTPROTONEG
1520                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1521                         {
1522                         if (--argc < 1) goto bad;
1523                         next_proto_neg_in = *(++argv);
1524                         }
1525 # endif
1526                 else if (strcmp(*argv,"-alpn") == 0)
1527                         {
1528                         if (--argc < 1) goto bad;
1529                         alpn_in = *(++argv);
1530                         }
1531 #endif
1532 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1533                 else if (strcmp(*argv,"-jpake") == 0)
1534                         {
1535                         if (--argc < 1) goto bad;
1536                         jpake_secret = *(++argv);
1537                         }
1538 #endif
1539                 else if (strcmp(*argv,"-use_srtp") == 0)
1540                         {
1541                         if (--argc < 1) goto bad;
1542                         srtp_profiles = *(++argv);
1543                         }
1544                 else if (strcmp(*argv,"-keymatexport") == 0)
1545                         {
1546                         if (--argc < 1) goto bad;
1547                         keymatexportlabel= *(++argv);
1548                         }
1549                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1550                         {
1551                         if (--argc < 1) goto bad;
1552                         keymatexportlen=atoi(*(++argv));
1553                         if (keymatexportlen == 0) goto bad;
1554                         }
1555                 else
1556                         {
1557                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1558                         badop=1;
1559                         break;
1560                         }
1561                 argc--;
1562                 argv++;
1563                 }
1564         if (badop)
1565                 {
1566 bad:
1567                 sv_usage();
1568                 goto end;
1569                 }
1570
1571         if (unix_path && (socket_type != SOCK_STREAM))
1572                 {
1573                 BIO_printf(bio_err, "Can't use unix sockets and datagrams together\n");
1574                         goto end;
1575                 }
1576 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1577         if (jpake_secret)
1578                 {
1579                 if (psk_key)
1580                         {
1581                         BIO_printf(bio_err,
1582                                    "Can't use JPAKE and PSK together\n");
1583                         goto end;
1584                         }
1585                 psk_identity = "JPAKE";
1586                 }
1587 #endif
1588
1589         SSL_load_error_strings();
1590         OpenSSL_add_ssl_algorithms();
1591
1592 #ifndef OPENSSL_NO_ENGINE
1593         e = setup_engine(bio_err, engine_id, 1);
1594 #endif
1595
1596         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1597                 {
1598                 BIO_printf(bio_err, "Error getting password\n");
1599                 goto end;
1600                 }
1601
1602
1603         if (s_key_file == NULL)
1604                 s_key_file = s_cert_file;
1605 #ifndef OPENSSL_NO_TLSEXT
1606         if (s_key_file2 == NULL)
1607                 s_key_file2 = s_cert_file2;
1608 #endif
1609
1610         if (!load_excert(&exc, bio_err))
1611                 goto end;
1612
1613         if (nocert == 0)
1614                 {
1615                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1616                        "server certificate private key file");
1617                 if (!s_key)
1618                         {
1619                         ERR_print_errors(bio_err);
1620                         goto end;
1621                         }
1622
1623                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1624                         NULL, e, "server certificate file");
1625
1626                 if (!s_cert)
1627                         {
1628                         ERR_print_errors(bio_err);
1629                         goto end;
1630                         }
1631                 if (s_chain_file)
1632                         {
1633                         s_chain = load_certs(bio_err, s_chain_file,FORMAT_PEM,
1634                                         NULL, e, "server certificate chain");
1635                         if (!s_chain)
1636                                 goto end;
1637                         }
1638
1639 #ifndef OPENSSL_NO_TLSEXT
1640                 if (tlsextcbp.servername)
1641                         {
1642                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1643                                 "second server certificate private key file");
1644                         if (!s_key2)
1645                                 {
1646                                 ERR_print_errors(bio_err);
1647                                 goto end;
1648                                 }
1649
1650                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1651                                 NULL, e, "second server certificate file");
1652
1653                         if (!s_cert2)
1654                                 {
1655                                 ERR_print_errors(bio_err);
1656                                 goto end;
1657                                 }
1658                         }
1659 #endif /* OPENSSL_NO_TLSEXT */
1660                 }
1661
1662 #if !defined(OPENSSL_NO_TLSEXT)
1663 # if !defined(OPENSSL_NO_NEXTPROTONEG)
1664         if (next_proto_neg_in)
1665                 {
1666                 unsigned short len;
1667                 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1668                 if (next_proto.data == NULL)
1669                         goto end;
1670                 next_proto.len = len;
1671                 }
1672         else
1673                 {
1674                 next_proto.data = NULL;
1675                 }
1676 # endif
1677         alpn_ctx.data = NULL;
1678         if (alpn_in)
1679                 {
1680                 unsigned short len;
1681                 alpn_ctx.data = next_protos_parse(&len, alpn_in);
1682                 if (alpn_ctx.data == NULL)
1683                         goto end;
1684                 alpn_ctx.len = len;
1685                 }
1686 #endif
1687
1688         if (crl_file)
1689                 {
1690                 X509_CRL *crl;
1691                 crl = load_crl(crl_file, crl_format);
1692                 if (!crl)
1693                         {
1694                         BIO_puts(bio_err, "Error loading CRL\n");
1695                         ERR_print_errors(bio_err);
1696                         goto end;
1697                         }
1698                 crls = sk_X509_CRL_new_null();
1699                 if (!crls || !sk_X509_CRL_push(crls, crl))
1700                         {
1701                         BIO_puts(bio_err, "Error adding CRL\n");
1702                         ERR_print_errors(bio_err);
1703                         X509_CRL_free(crl);
1704                         goto end;
1705                         }
1706                 }
1707
1708
1709         if (s_dcert_file)
1710                 {
1711
1712                 if (s_dkey_file == NULL)
1713                         s_dkey_file = s_dcert_file;
1714
1715                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1716                                 0, dpass, e,
1717                                "second certificate private key file");
1718                 if (!s_dkey)
1719                         {
1720                         ERR_print_errors(bio_err);
1721                         goto end;
1722                         }
1723
1724                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1725                                 NULL, e, "second server certificate file");
1726
1727                 if (!s_dcert)
1728                         {
1729                         ERR_print_errors(bio_err);
1730                         goto end;
1731                         }
1732                 if (s_dchain_file)
1733                         {
1734                         s_dchain = load_certs(bio_err, s_dchain_file,FORMAT_PEM,
1735                                 NULL, e, "second server certificate chain");
1736                         if (!s_dchain)
1737                                 goto end;
1738                         }
1739
1740                 }
1741
1742         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1743                 && !RAND_status())
1744                 {
1745                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1746                 }
1747         if (inrand != NULL)
1748                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1749                         app_RAND_load_files(inrand));
1750
1751         if (bio_s_out == NULL)
1752                 {
1753                 if (s_quiet && !s_debug)
1754                         {
1755                         bio_s_out=BIO_new(BIO_s_null());
1756                         if (s_msg && !bio_s_msg)
1757                                 bio_s_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1758                         }
1759                 else
1760                         {
1761                         if (bio_s_out == NULL)
1762                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1763                         }
1764                 }
1765
1766 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1767         if (nocert)
1768 #endif
1769                 {
1770                 s_cert_file=NULL;
1771                 s_key_file=NULL;
1772                 s_dcert_file=NULL;
1773                 s_dkey_file=NULL;
1774 #ifndef OPENSSL_NO_TLSEXT
1775                 s_cert_file2=NULL;
1776                 s_key_file2=NULL;
1777 #endif
1778                 }
1779
1780         ctx=SSL_CTX_new(meth);
1781         if (sdebug)
1782                 ssl_ctx_security_debug(ctx, bio_err, sdebug);
1783         if (ctx == NULL)
1784                 {
1785                 ERR_print_errors(bio_err);
1786                 goto end;
1787                 }
1788         if (session_id_prefix)
1789                 {
1790                 if(strlen(session_id_prefix) >= 32)
1791                         BIO_printf(bio_err,
1792 "warning: id_prefix is too long, only one new session will be possible\n");
1793                 else if(strlen(session_id_prefix) >= 16)
1794                         BIO_printf(bio_err,
1795 "warning: id_prefix is too long if you use SSLv2\n");
1796                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1797                         {
1798                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1799                         ERR_print_errors(bio_err);
1800                         goto end;
1801                         }
1802                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1803                 }
1804         SSL_CTX_set_quiet_shutdown(ctx,1);
1805         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1806         if (exc) ssl_ctx_set_excert(ctx, exc);
1807         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1808          * Setting read ahead solves this problem.
1809          */
1810         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1811
1812         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1813         if (no_cache)
1814                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1815         else if (ext_cache)
1816                 init_session_cache_ctx(ctx);
1817         else
1818                 SSL_CTX_sess_set_cache_size(ctx,128);
1819
1820         if (srtp_profiles != NULL)
1821                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1822
1823 #if 0
1824         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1825 #endif
1826
1827 #if 0
1828         if (s_cert_file == NULL)
1829                 {
1830                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1831                 goto end;
1832                 }
1833 #endif
1834
1835         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1836                 (!SSL_CTX_set_default_verify_paths(ctx)))
1837                 {
1838                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1839                 ERR_print_errors(bio_err);
1840                 /* goto end; */
1841                 }
1842         if (vpm)
1843                 SSL_CTX_set1_param(ctx, vpm);
1844
1845         ssl_ctx_add_crls(ctx, crls, 0);
1846         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1847                 goto end;
1848
1849         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1850                                                 crls, crl_download))
1851                 {
1852                 BIO_printf(bio_err, "Error loading store locations\n");
1853                 ERR_print_errors(bio_err);
1854                 goto end;
1855                 }
1856
1857 #ifndef OPENSSL_NO_TLSEXT
1858         if (s_cert2)
1859                 {
1860                 ctx2=SSL_CTX_new(meth);
1861                 if (ctx2 == NULL)
1862                         {
1863                         ERR_print_errors(bio_err);
1864                         goto end;
1865                         }
1866                 }
1867
1868         if (ctx2)
1869                 {
1870                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1871
1872                 if (sdebug)
1873                         ssl_ctx_security_debug(ctx, bio_err, sdebug);
1874
1875                 if (session_id_prefix)
1876                         {
1877                         if(strlen(session_id_prefix) >= 32)
1878                                 BIO_printf(bio_err,
1879                                         "warning: id_prefix is too long, only one new session will be possible\n");
1880                         else if(strlen(session_id_prefix) >= 16)
1881                                 BIO_printf(bio_err,
1882                                         "warning: id_prefix is too long if you use SSLv2\n");
1883                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1884                                 {
1885                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1886                                 ERR_print_errors(bio_err);
1887                                 goto end;
1888                                 }
1889                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1890                         }
1891                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1892                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1893                 if (exc) ssl_ctx_set_excert(ctx2, exc);
1894                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1895                  * Setting read ahead solves this problem.
1896                  */
1897                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1898
1899                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1900
1901                 if (no_cache)
1902                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1903                 else if (ext_cache)
1904                         init_session_cache_ctx(ctx2);
1905                 else
1906                         SSL_CTX_sess_set_cache_size(ctx2,128);
1907
1908                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1909                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1910                         {
1911                         ERR_print_errors(bio_err);
1912                         }
1913                 if (vpm)
1914                         SSL_CTX_set1_param(ctx2, vpm);
1915
1916                 ssl_ctx_add_crls(ctx2, crls, 0);
1917                 if (!args_ssl_call(ctx2, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1918                         goto end;
1919                 }
1920
1921 # ifndef OPENSSL_NO_NEXTPROTONEG
1922         if (next_proto.data)
1923                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1924 # endif
1925         if (alpn_ctx.data)
1926                 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1927 #endif
1928
1929 #ifndef OPENSSL_NO_DH
1930         if (!no_dhe)
1931                 {
1932                 DH *dh=NULL;
1933
1934                 if (dhfile)
1935                         dh = load_dh_param(dhfile);
1936                 else if (s_cert_file)
1937                         dh = load_dh_param(s_cert_file);
1938
1939                 if (dh != NULL)
1940                         {
1941                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1942                         }
1943                 else
1944                         {
1945                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1946                         }
1947                 (void)BIO_flush(bio_s_out);
1948
1949                 if (dh == NULL)
1950                         SSL_CTX_set_dh_auto(ctx, 1);
1951                 else if (!SSL_CTX_set_tmp_dh(ctx,dh))
1952                         {
1953                         BIO_puts(bio_err, "Error setting temp DH parameters\n");
1954                         ERR_print_errors(bio_err);
1955                         DH_free(dh);
1956                         goto end;
1957                         }
1958 #ifndef OPENSSL_NO_TLSEXT
1959                 if (ctx2)
1960                         {
1961                         if (!dhfile)
1962                                 {
1963                                 DH *dh2=load_dh_param(s_cert_file2);
1964                                 if (dh2 != NULL)
1965                                         {
1966                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1967                                         (void)BIO_flush(bio_s_out);
1968
1969                                         DH_free(dh);
1970                                         dh = dh2;
1971                                         }
1972                                 }
1973                         if (dh == NULL)
1974                                 SSL_CTX_set_dh_auto(ctx2, 1);
1975                         else if (!SSL_CTX_set_tmp_dh(ctx2,dh))
1976                                 {
1977                                 BIO_puts(bio_err, "Error setting temp DH parameters\n");
1978                                 ERR_print_errors(bio_err);
1979                                 DH_free(dh);
1980                                 goto end;
1981                                 }
1982                         }
1983 #endif
1984                 DH_free(dh);
1985                 }
1986 #endif
1987
1988         if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1989                 goto end;
1990 #ifndef OPENSSL_NO_TLSEXT
1991         if (s_serverinfo_file != NULL
1992             && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file))
1993                 {
1994                 ERR_print_errors(bio_err);
1995                 goto end;
1996                 }
1997         if (c_auth)
1998                 {
1999                 SSL_CTX_set_custom_srv_ext(ctx, TLSEXT_TYPE_client_authz, authz_tlsext_cb, authz_tlsext_generate_cb, bio_err);
2000                 SSL_CTX_set_custom_srv_ext(ctx, TLSEXT_TYPE_server_authz, authz_tlsext_cb, authz_tlsext_generate_cb, bio_err);
2001                 SSL_CTX_set_srv_supp_data(ctx, TLSEXT_SUPPLEMENTALDATATYPE_authz_data, auth_suppdata_generate_cb, suppdata_cb, bio_err);
2002                 }
2003 #endif
2004 #ifndef OPENSSL_NO_TLSEXT
2005         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2, NULL, build_chain))
2006                 goto end;
2007 #endif
2008         if (s_dcert != NULL)
2009                 {
2010                 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
2011                         goto end;
2012                 }
2013
2014 #ifndef OPENSSL_NO_RSA
2015 #if 1
2016         if (!no_tmp_rsa)
2017                 {
2018                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
2019 #ifndef OPENSSL_NO_TLSEXT
2020                 if (ctx2)
2021                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
2022 #endif
2023                 }
2024 #else
2025         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
2026                 {
2027                 RSA *rsa;
2028
2029                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
2030                 BIO_flush(bio_s_out);
2031
2032                 rsa=RSA_generate_key(512,RSA_F4,NULL);
2033
2034                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
2035                         {
2036                         ERR_print_errors(bio_err);
2037                         goto end;
2038                         }
2039 #ifndef OPENSSL_NO_TLSEXT
2040                         if (ctx2)
2041                                 {
2042                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
2043                                         {
2044                                         ERR_print_errors(bio_err);
2045                                         goto end;
2046                                         }
2047                                 }
2048 #endif
2049                 RSA_free(rsa);
2050                 BIO_printf(bio_s_out,"\n");
2051                 }
2052 #endif
2053 #endif
2054
2055         if (no_resume_ephemeral)
2056                 {
2057                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
2058 #ifndef OPENSSL_NO_TLSEXT
2059                 if (ctx2)
2060                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
2061 #endif
2062                 }
2063
2064 #ifndef OPENSSL_NO_PSK
2065 #ifdef OPENSSL_NO_JPAKE
2066         if (psk_key != NULL)
2067 #else
2068         if (psk_key != NULL || jpake_secret)
2069 #endif
2070                 {
2071                 if (s_debug)
2072                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
2073                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2074                 }
2075
2076         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
2077                 {
2078                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
2079                 ERR_print_errors(bio_err);
2080                 goto end;
2081                 }
2082 #endif
2083
2084         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
2085         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
2086                 sizeof s_server_session_id_context);
2087
2088         /* Set DTLS cookie generation and verification callbacks */
2089         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2090         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2091
2092 #ifndef OPENSSL_NO_TLSEXT
2093         if (ctx2)
2094                 {
2095                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
2096                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
2097                         sizeof s_server_session_id_context);
2098
2099                 tlsextcbp.biodebug = bio_s_out;
2100                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2101                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2102                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2103                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2104                 }
2105 #endif
2106
2107 #ifndef OPENSSL_NO_SRP
2108         if (srp_verifier_file != NULL)
2109                 {
2110                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
2111                 srp_callback_parm.user = NULL;
2112                 srp_callback_parm.login = NULL;
2113                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
2114                         {
2115                         BIO_printf(bio_err,
2116                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
2117                                    srp_verifier_file, ret);
2118                                 goto end;
2119                         }
2120                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
2121                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
2122                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
2123                 }
2124         else
2125 #endif
2126         if (CAfile != NULL)
2127                 {
2128                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
2129 #ifndef OPENSSL_NO_TLSEXT
2130                 if (ctx2)
2131                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
2132 #endif
2133                 }
2134
2135         BIO_printf(bio_s_out,"ACCEPT\n");
2136         (void)BIO_flush(bio_s_out);
2137         if (rev)
2138                 server_cb = rev_body;
2139         else if (www)
2140                 server_cb = www_body;
2141         else
2142                 server_cb = sv_body;
2143         if (unix_path)
2144                 {
2145                 if (unlink_unix_path)
2146                         unlink(unix_path);
2147                 do_server_unix(unix_path,&accept_socket,server_cb, context, naccept);
2148                 }
2149         else
2150                 do_server(port,socket_type,&accept_socket,server_cb, context, naccept);
2151         print_stats(bio_s_out,ctx);
2152         ret=0;
2153 end:
2154         if (ctx != NULL) SSL_CTX_free(ctx);
2155         if (s_cert)
2156                 X509_free(s_cert);
2157         if (crls)
2158                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2159         if (s_dcert)
2160                 X509_free(s_dcert);
2161         if (s_key)
2162                 EVP_PKEY_free(s_key);
2163         if (s_dkey)
2164                 EVP_PKEY_free(s_dkey);
2165         if (s_chain)
2166                 sk_X509_pop_free(s_chain, X509_free);
2167         if (s_dchain)
2168                 sk_X509_pop_free(s_dchain, X509_free);
2169         if (pass)
2170                 OPENSSL_free(pass);
2171         if (dpass)
2172                 OPENSSL_free(dpass);
2173         if (vpm)
2174                 X509_VERIFY_PARAM_free(vpm);
2175         free_sessions();
2176 #ifndef OPENSSL_NO_TLSEXT
2177         if (tlscstatp.host)
2178                 OPENSSL_free(tlscstatp.host);
2179         if (tlscstatp.port)
2180                 OPENSSL_free(tlscstatp.port);
2181         if (tlscstatp.path)
2182                 OPENSSL_free(tlscstatp.path);
2183         if (ctx2 != NULL) SSL_CTX_free(ctx2);
2184         if (s_cert2)
2185                 X509_free(s_cert2);
2186         if (s_key2)
2187                 EVP_PKEY_free(s_key2);
2188         if (serverinfo_in != NULL)
2189                 BIO_free(serverinfo_in);
2190 # ifndef OPENSSL_NO_NEXTPROTONEG
2191         if (next_proto.data)
2192                 OPENSSL_free(next_proto.data);
2193 # endif
2194         if (alpn_ctx.data)
2195                 OPENSSL_free(alpn_ctx.data);
2196 #endif
2197         ssl_excert_free(exc);
2198         if (ssl_args)
2199                 sk_OPENSSL_STRING_free(ssl_args);
2200         if (cctx)
2201                 SSL_CONF_CTX_free(cctx);
2202 #ifndef OPENSSL_NO_JPAKE
2203         if (jpake_secret && psk_key)
2204                 OPENSSL_free(psk_key);
2205 #endif
2206         if (bio_s_out != NULL)
2207                 {
2208                 BIO_free(bio_s_out);
2209                 bio_s_out=NULL;
2210                 }
2211         if (bio_s_msg != NULL)
2212                 {
2213                 BIO_free(bio_s_msg);
2214                 bio_s_msg = NULL;
2215                 }
2216         apps_shutdown();
2217         OPENSSL_EXIT(ret);
2218         }
2219
2220 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2221         {
2222         BIO_printf(bio,"%4ld items in the session cache\n",
2223                 SSL_CTX_sess_number(ssl_ctx));
2224         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
2225                 SSL_CTX_sess_connect(ssl_ctx));
2226         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
2227                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2228         BIO_printf(bio,"%4ld client connects that finished\n",
2229                 SSL_CTX_sess_connect_good(ssl_ctx));
2230         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
2231                 SSL_CTX_sess_accept(ssl_ctx));
2232         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
2233                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2234         BIO_printf(bio,"%4ld server accepts that finished\n",
2235                 SSL_CTX_sess_accept_good(ssl_ctx));
2236         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
2237         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
2238         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
2239         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
2240         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
2241                 SSL_CTX_sess_cache_full(ssl_ctx),
2242                 SSL_CTX_sess_get_cache_size(ssl_ctx));
2243         }
2244
2245 static int sv_body(char *hostname, int s, int stype, unsigned char *context)
2246         {
2247         char *buf=NULL;
2248         fd_set readfds;
2249         int ret=1,width;
2250         int k,i;
2251         unsigned long l;
2252         SSL *con=NULL;
2253         BIO *sbio;
2254 #ifndef OPENSSL_NO_KRB5
2255         KSSL_CTX *kctx;
2256 #endif
2257         struct timeval timeout;
2258 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2259         struct timeval tv;
2260 #else
2261         struct timeval *timeoutp;
2262 #endif
2263
2264         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
2265                 {
2266                 BIO_printf(bio_err,"out of memory\n");
2267                 goto err;
2268                 }
2269 #ifdef FIONBIO
2270         if (s_nbio)
2271                 {
2272                 unsigned long sl=1;
2273
2274                 if (!s_quiet)
2275                         BIO_printf(bio_err,"turning on non blocking io\n");
2276                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2277                         ERR_print_errors(bio_err);
2278                 }
2279 #endif
2280
2281         if (con == NULL) {
2282                 con=SSL_new(ctx);
2283 #ifndef OPENSSL_NO_TLSEXT
2284         if (s_tlsextdebug)
2285                 {
2286                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2287                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2288                 }
2289         if (s_tlsextstatus)
2290                 {
2291                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2292                 tlscstatp.err = bio_err;
2293                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2294                 }
2295 #endif
2296 #ifndef OPENSSL_NO_KRB5
2297                 if ((kctx = kssl_ctx_new()) != NULL)
2298                         {
2299                         SSL_set0_kssl_ctx(con, kctx);
2300                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2301                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2302                         }
2303 #endif  /* OPENSSL_NO_KRB5 */
2304                 if(context)
2305                       SSL_set_session_id_context(con, context,
2306                                                  strlen((char *)context));
2307         }
2308         SSL_clear(con);
2309 #if 0
2310 #ifdef TLSEXT_TYPE_opaque_prf_input
2311         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2312 #endif
2313 #endif
2314
2315         if (stype == SOCK_DGRAM)
2316                 {
2317
2318                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2319
2320                 if (enable_timeouts)
2321                         {
2322                         timeout.tv_sec = 0;
2323                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2324                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2325
2326                         timeout.tv_sec = 0;
2327                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2328                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2329                         }
2330
2331                 if (socket_mtu > 28)
2332                         {
2333                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2334                         SSL_set_mtu(con, socket_mtu - 28);
2335                         }
2336                 else
2337                         /* want to do MTU discovery */
2338                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2339
2340         /* turn on cookie exchange */
2341         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2342                 }
2343         else
2344                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2345
2346         if (s_nbio_test)
2347                 {
2348                 BIO *test;
2349
2350                 test=BIO_new(BIO_f_nbio_test());
2351                 sbio=BIO_push(test,sbio);
2352                 }
2353 #ifndef OPENSSL_NO_JPAKE
2354         if(jpake_secret)
2355                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2356 #endif
2357
2358         SSL_set_bio(con,sbio,sbio);
2359         SSL_set_accept_state(con);
2360         /* SSL_set_fd(con,s); */
2361
2362         if (s_debug)
2363                 {
2364                 SSL_set_debug(con, 1);
2365                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2366                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2367                 }
2368         if (s_msg)
2369                 {
2370 #ifndef OPENSSL_NO_SSL_TRACE
2371                 if (s_msg == 2)
2372                         SSL_set_msg_callback(con, SSL_trace);
2373                 else
2374 #endif
2375                         SSL_set_msg_callback(con, msg_cb);
2376                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2377                 }
2378 #ifndef OPENSSL_NO_TLSEXT
2379         if (s_tlsextdebug)
2380                 {
2381                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2382                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2383                 }
2384 #endif
2385
2386         width=s+1;
2387         for (;;)
2388                 {
2389                 int read_from_terminal;
2390                 int read_from_sslcon;
2391
2392                 read_from_terminal = 0;
2393                 read_from_sslcon = SSL_pending(con);
2394
2395                 if (!read_from_sslcon)
2396                         {
2397                         FD_ZERO(&readfds);
2398 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2399                         openssl_fdset(fileno(stdin),&readfds);
2400 #endif
2401                         openssl_fdset(s,&readfds);
2402                         /* Note: under VMS with SOCKETSHR the second parameter is
2403                          * currently of type (int *) whereas under other systems
2404                          * it is (void *) if you don't have a cast it will choke
2405                          * the compiler: if you do have a cast then you can either
2406                          * go for (int *) or (void *).
2407                          */
2408 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2409                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2410                          * on sockets. As a workaround we timeout the select every
2411                          * second and check for any keypress. In a proper Windows
2412                          * application we wouldn't do this because it is inefficient.
2413                          */
2414                         tv.tv_sec = 1;
2415                         tv.tv_usec = 0;
2416                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2417                         if((i < 0) || (!i && !_kbhit() ) )continue;
2418                         if(_kbhit())
2419                                 read_from_terminal = 1;
2420 #elif defined(OPENSSL_SYS_BEOS_R5)
2421                         /* Under BeOS-R5 the situation is similar to DOS */
2422                         tv.tv_sec = 1;
2423                         tv.tv_usec = 0;
2424                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2425                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2426                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2427                                 continue;
2428                         if (read(fileno(stdin), buf, 0) >= 0)
2429                                 read_from_terminal = 1;
2430                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2431 #else
2432                         if ((SSL_version(con) == DTLS1_VERSION) &&
2433                                 DTLSv1_get_timeout(con, &timeout))
2434                                 timeoutp = &timeout;
2435                         else
2436                                 timeoutp = NULL;
2437
2438                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2439
2440                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2441                                 {
2442                                 BIO_printf(bio_err,"TIMEOUT occurred\n");
2443                                 }
2444
2445                         if (i <= 0) continue;
2446                         if (FD_ISSET(fileno(stdin),&readfds))
2447                                 read_from_terminal = 1;
2448 #endif
2449                         if (FD_ISSET(s,&readfds))
2450                                 read_from_sslcon = 1;
2451                         }
2452                 if (read_from_terminal)
2453                         {
2454                         if (s_crlf)
2455                                 {
2456                                 int j, lf_num;
2457
2458                                 i=raw_read_stdin(buf, bufsize/2);
2459                                 lf_num = 0;
2460                                 /* both loops are skipped when i <= 0 */
2461                                 for (j = 0; j < i; j++)
2462                                         if (buf[j] == '\n')
2463                                                 lf_num++;
2464                                 for (j = i-1; j >= 0; j--)
2465                                         {
2466                                         buf[j+lf_num] = buf[j];
2467                                         if (buf[j] == '\n')
2468                                                 {
2469                                                 lf_num--;
2470                                                 i++;
2471                                                 buf[j+lf_num] = '\r';
2472                                                 }
2473                                         }
2474                                 assert(lf_num == 0);
2475                                 }
2476                         else
2477                                 i=raw_read_stdin(buf,bufsize);
2478                         if (!s_quiet && !s_brief)
2479                                 {
2480                                 if ((i <= 0) || (buf[0] == 'Q'))
2481                                         {
2482                                         BIO_printf(bio_s_out,"DONE\n");
2483                                         SHUTDOWN(s);
2484                                         close_accept_socket();
2485                                         ret= -11;
2486                                         goto err;
2487                                         }
2488                                 if ((i <= 0) || (buf[0] == 'q'))
2489                                         {
2490                                         BIO_printf(bio_s_out,"DONE\n");
2491                                         if (SSL_version(con) != DTLS1_VERSION)
2492                         SHUTDOWN(s);
2493         /*                              close_accept_socket();
2494                                         ret= -11;*/
2495                                         goto err;
2496                                         }
2497
2498 #ifndef OPENSSL_NO_HEARTBEATS
2499                                 if ((buf[0] == 'B') &&
2500                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2501                                         {
2502                                         BIO_printf(bio_err,"HEARTBEATING\n");
2503                                         SSL_heartbeat(con);
2504                                         i=0;
2505                                         continue;
2506                                         }
2507 #endif
2508                                 if ((buf[0] == 'r') &&
2509                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2510                                         {
2511                                         SSL_renegotiate(con);
2512                                         i=SSL_do_handshake(con);
2513                                         printf("SSL_do_handshake -> %d\n",i);
2514                                         i=0; /*13; */
2515                                         continue;
2516                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2517                                         }
2518                                 if ((buf[0] == 'R') &&
2519                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2520                                         {
2521                                         SSL_set_verify(con,
2522                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2523                                         SSL_renegotiate(con);
2524                                         i=SSL_do_handshake(con);
2525                                         printf("SSL_do_handshake -> %d\n",i);
2526                                         i=0; /* 13; */
2527                                         continue;
2528                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2529                                         }
2530                                 if (buf[0] == 'P')
2531                                         {
2532                                         static const char *str="Lets print some clear text\n";
2533                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2534                                         }
2535                                 if (buf[0] == 'S')
2536                                         {
2537                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2538                                         }
2539                                 }
2540 #ifdef CHARSET_EBCDIC
2541                         ebcdic2ascii(buf,buf,i);
2542 #endif
2543                         l=k=0;
2544                         for (;;)
2545                                 {
2546                                 /* should do a select for the write */
2547 #ifdef RENEG
2548 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2549 #endif
2550                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2551 #ifndef OPENSSL_NO_SRP
2552                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2553                                         {
2554                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2555                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2556                                         if (srp_callback_parm.user)
2557                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2558                                         else
2559                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2560                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2561                                         }
2562 #endif
2563                                 switch (SSL_get_error(con,k))
2564                                         {
2565                                 case SSL_ERROR_NONE:
2566                                         break;
2567                                 case SSL_ERROR_WANT_WRITE:
2568                                 case SSL_ERROR_WANT_READ:
2569                                 case SSL_ERROR_WANT_X509_LOOKUP:
2570                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2571                                         break;
2572                                 case SSL_ERROR_SYSCALL:
2573                                 case SSL_ERROR_SSL:
2574                                         BIO_printf(bio_s_out,"ERROR\n");
2575                                         ERR_print_errors(bio_err);
2576                                         ret=1;
2577                                         goto err;
2578                                         /* break; */
2579                                 case SSL_ERROR_ZERO_RETURN:
2580                                         BIO_printf(bio_s_out,"DONE\n");
2581                                         ret=1;
2582                                         goto err;
2583                                         }
2584                                 l+=k;
2585                                 i-=k;
2586                                 if (i <= 0) break;
2587                                 }
2588                         }
2589                 if (read_from_sslcon)
2590                         {
2591                         if (!SSL_is_init_finished(con))
2592                                 {
2593                                 i=init_ssl_connection(con);
2594
2595                                 if (i < 0)
2596                                         {
2597                                         ret=0;
2598                                         goto err;
2599                                         }
2600                                 else if (i == 0)
2601                                         {
2602                                         ret=1;
2603                                         goto err;
2604                                         }
2605                                 }
2606                         else
2607                                 {
2608 again:
2609                                 i=SSL_read(con,(char *)buf,bufsize);
2610 #ifndef OPENSSL_NO_SRP
2611                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2612                                         {
2613                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2614                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2615                                         if (srp_callback_parm.user)
2616                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2617                                         else
2618                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2619                                         i=SSL_read(con,(char *)buf,bufsize);
2620                                         }
2621 #endif
2622                                 switch (SSL_get_error(con,i))
2623                                         {
2624                                 case SSL_ERROR_NONE:
2625 #ifdef CHARSET_EBCDIC
2626                                         ascii2ebcdic(buf,buf,i);
2627 #endif
2628                                         raw_write_stdout(buf,
2629                                                 (unsigned int)i);
2630                                         if (SSL_pending(con)) goto again;
2631                                         break;
2632                                 case SSL_ERROR_WANT_WRITE:
2633                                 case SSL_ERROR_WANT_READ:
2634                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2635                                         break;
2636                                 case SSL_ERROR_SYSCALL:
2637                                 case SSL_ERROR_SSL:
2638                                         BIO_printf(bio_s_out,"ERROR\n");
2639                                         ERR_print_errors(bio_err);
2640                                         ret=1;
2641                                         goto err;
2642                                 case SSL_ERROR_ZERO_RETURN:
2643                                         BIO_printf(bio_s_out,"DONE\n");
2644                                         ret=1;
2645                                         goto err;
2646                                         }
2647                                 }
2648                         }
2649                 }
2650 err:
2651         if (con != NULL)
2652                 {
2653                 BIO_printf(bio_s_out,"shutting down SSL\n");
2654 #if 1
2655                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2656 #else
2657                 SSL_shutdown(con);
2658 #endif
2659                 SSL_free(con);
2660                 }
2661         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2662         if (buf != NULL)
2663                 {
2664                 OPENSSL_cleanse(buf,bufsize);
2665                 OPENSSL_free(buf);
2666                 }
2667         if (ret >= 0)
2668                 BIO_printf(bio_s_out,"ACCEPT\n");
2669         return(ret);
2670         }
2671
2672 static void close_accept_socket(void)
2673         {
2674         BIO_printf(bio_err,"shutdown accept socket\n");
2675         if (accept_socket >= 0)
2676                 {
2677                 SHUTDOWN2(accept_socket);
2678                 }
2679         }
2680
2681 static int init_ssl_connection(SSL *con)
2682         {
2683         int i;
2684         const char *str;
2685         X509 *peer;
2686         long verify_error;
2687         MS_STATIC char buf[BUFSIZ];
2688 #ifndef OPENSSL_NO_KRB5
2689         char *client_princ;
2690 #endif
2691 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2692         const unsigned char *next_proto_neg;
2693         unsigned next_proto_neg_len;
2694 #endif
2695         unsigned char *exportedkeymat;
2696
2697
2698         i=SSL_accept(con);
2699 #ifdef CERT_CB_TEST_RETRY
2700         {
2701         while (i <= 0 && SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP && SSL_state(con) == SSL3_ST_SR_CLNT_HELLO_C)
2702                 {
2703                 fprintf(stderr, "LOOKUP from certificate callback during accept\n");
2704                 i=SSL_accept(con);
2705                 }
2706         }
2707 #endif
2708 #ifndef OPENSSL_NO_SRP
2709         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2710                 {
2711                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2712                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2713                         if (srp_callback_parm.user)
2714                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2715                         else
2716                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2717                         i=SSL_accept(con);
2718                 }
2719 #endif
2720         /*handshake is complete - free the generated supp data allocated in the callback */
2721         if (generated_supp_data)
2722                 {
2723         OPENSSL_free(generated_supp_data);
2724                 generated_supp_data = NULL;
2725                 }
2726
2727         if (i <= 0)
2728                 {
2729                 if (BIO_sock_should_retry(i))
2730                         {
2731                         BIO_printf(bio_s_out,"DELAY\n");
2732                         return(1);
2733                         }
2734
2735                 BIO_printf(bio_err,"ERROR\n");
2736                 verify_error=SSL_get_verify_result(con);
2737                 if (verify_error != X509_V_OK)
2738                         {
2739                         BIO_printf(bio_err,"verify error:%s\n",
2740                                 X509_verify_cert_error_string(verify_error));
2741                         }
2742                 /* Always print any error messages */
2743                 ERR_print_errors(bio_err);
2744                 return(0);
2745                 }
2746
2747         if (s_brief)
2748                 print_ssl_summary(bio_err, con);
2749
2750         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2751
2752         peer=SSL_get_peer_certificate(con);
2753         if (peer != NULL)
2754                 {
2755                 BIO_printf(bio_s_out,"Client certificate\n");
2756                 PEM_write_bio_X509(bio_s_out,peer);
2757                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2758                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2759                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2760                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2761                 X509_free(peer);
2762                 }
2763
2764         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2765                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2766         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2767         ssl_print_sigalgs(bio_s_out, con);
2768 #ifndef OPENSSL_NO_EC
2769         ssl_print_point_formats(bio_s_out, con);
2770         ssl_print_curves(bio_s_out, con, 0);
2771 #endif
2772         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2773
2774 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2775         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2776         if (next_proto_neg)
2777                 {
2778                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2779                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2780                 BIO_printf(bio_s_out, "\n");
2781                 }
2782 #endif
2783         {
2784         SRTP_PROTECTION_PROFILE *srtp_profile
2785           = SSL_get_selected_srtp_profile(con);
2786
2787         if(srtp_profile)
2788                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2789                            srtp_profile->name);
2790         }
2791         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2792         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2793                 TLS1_FLAGS_TLS_PADDING_BUG)
2794                 BIO_printf(bio_s_out,
2795                            "Peer has incorrect TLSv1 block padding\n");
2796 #ifndef OPENSSL_NO_KRB5
2797         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2798         if (client_princ != NULL)
2799                 {
2800                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2801                                                                 client_princ);
2802                 }
2803 #endif /* OPENSSL_NO_KRB5 */
2804         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2805                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2806         if (keymatexportlabel != NULL)
2807                 {
2808                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2809                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2810                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2811                            keymatexportlen);
2812                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2813                 if (exportedkeymat != NULL)
2814                         {
2815                         if (!SSL_export_keying_material(con, exportedkeymat,
2816                                                         keymatexportlen,
2817                                                         keymatexportlabel,
2818                                                         strlen(keymatexportlabel),
2819                                                         NULL, 0, 0))
2820                                 {
2821                                 BIO_printf(bio_s_out, "    Error\n");
2822                                 }
2823                         else
2824                                 {
2825                                 BIO_printf(bio_s_out, "    Keying material: ");
2826                                 for (i=0; i<keymatexportlen; i++)
2827                                         BIO_printf(bio_s_out, "%02X",
2828                                                    exportedkeymat[i]);
2829                                 BIO_printf(bio_s_out, "\n");
2830                                 }
2831                         OPENSSL_free(exportedkeymat);
2832                         }
2833                 }
2834
2835         return(1);
2836         }
2837
2838 #ifndef OPENSSL_NO_DH
2839 static DH *load_dh_param(const char *dhfile)
2840         {
2841         DH *ret=NULL;
2842         BIO *bio;
2843
2844         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2845                 goto err;
2846         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2847 err:
2848         if (bio != NULL) BIO_free(bio);
2849         return(ret);
2850         }
2851 #endif
2852
2853 #if 0
2854 static int load_CA(SSL_CTX *ctx, char *file)
2855         {
2856         FILE *in;
2857         X509 *x=NULL;
2858
2859         if ((in=fopen(file,"r")) == NULL)
2860                 return(0);
2861
2862         for (;;)
2863                 {
2864                 if (PEM_read_X509(in,&x,NULL) == NULL)
2865                         break;
2866                 SSL_CTX_add_client_CA(ctx,x);
2867                 }
2868         if (x != NULL) X509_free(x);
2869         fclose(in);
2870         return(1);
2871         }
2872 #endif
2873
2874 static int www_body(char *hostname, int s, int stype, unsigned char *context)
2875         {
2876         char *buf=NULL;
2877         int ret=1;
2878         int i,j,k,dot;
2879         SSL *con;
2880         const SSL_CIPHER *c;
2881         BIO *io,*ssl_bio,*sbio;
2882 #ifndef OPENSSL_NO_KRB5
2883         KSSL_CTX *kctx;
2884 #endif
2885
2886         buf=OPENSSL_malloc(bufsize);
2887         if (buf == NULL) return(0);
2888         io=BIO_new(BIO_f_buffer());
2889         ssl_bio=BIO_new(BIO_f_ssl());
2890         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2891
2892 #ifdef FIONBIO
2893         if (s_nbio)
2894                 {
2895                 unsigned long sl=1;
2896
2897                 if (!s_quiet)
2898                         BIO_printf(bio_err,"turning on non blocking io\n");
2899                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2900                         ERR_print_errors(bio_err);
2901                 }
2902 #endif
2903
2904         /* lets make the output buffer a reasonable size */
2905         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2906
2907         if ((con=SSL_new(ctx)) == NULL) goto err;
2908 #ifndef OPENSSL_NO_TLSEXT
2909                 if (s_tlsextdebug)
2910                         {
2911                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2912                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2913                         }
2914 #endif
2915 #ifndef OPENSSL_NO_KRB5
2916         if ((kctx = kssl_ctx_new()) != NULL)
2917                 {
2918                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2919                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2920                 }
2921 #endif  /* OPENSSL_NO_KRB5 */
2922         if(context) SSL_set_session_id_context(con, context,
2923                                                strlen((char *)context));
2924
2925         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2926         if (s_nbio_test)
2927                 {
2928                 BIO *test;
2929
2930                 test=BIO_new(BIO_f_nbio_test());
2931                 sbio=BIO_push(test,sbio);
2932                 }
2933         SSL_set_bio(con,sbio,sbio);
2934         SSL_set_accept_state(con);
2935
2936         /* SSL_set_fd(con,s); */
2937         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2938         BIO_push(io,ssl_bio);
2939 #ifdef CHARSET_EBCDIC
2940         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2941 #endif
2942
2943         if (s_debug)
2944                 {
2945                 SSL_set_debug(con, 1);
2946                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2947                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2948                 }
2949         if (s_msg)
2950                 {
2951 #ifndef OPENSSL_NO_SSL_TRACE
2952                 if (s_msg == 2)
2953                         SSL_set_msg_callback(con, SSL_trace);
2954                 else
2955 #endif
2956                         SSL_set_msg_callback(con, msg_cb);
2957                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2958                 }
2959
2960         for (;;)
2961                 {
2962                 if (hack)
2963                         {
2964                         i=SSL_accept(con);
2965 #ifndef OPENSSL_NO_SRP
2966                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2967                 {
2968                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2969                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2970                         if (srp_callback_parm.user)
2971                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2972                         else
2973                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2974                         i=SSL_accept(con);
2975                 }
2976 #endif
2977                         switch (SSL_get_error(con,i))
2978                                 {
2979                         case SSL_ERROR_NONE:
2980                                 break;
2981                         case SSL_ERROR_WANT_WRITE:
2982                         case SSL_ERROR_WANT_READ:
2983                         case SSL_ERROR_WANT_X509_LOOKUP:
2984                                 continue;
2985                         case SSL_ERROR_SYSCALL:
2986                         case SSL_ERROR_SSL:
2987                         case SSL_ERROR_ZERO_RETURN:
2988                                 ret=1;
2989                                 goto err;
2990                                 /* break; */
2991                                 }
2992
2993                         SSL_renegotiate(con);
2994                         SSL_write(con,NULL,0);
2995                         }
2996
2997                 i=BIO_gets(io,buf,bufsize-1);
2998                 if (i < 0) /* error */
2999                         {
3000                         if (!BIO_should_retry(io))
3001                                 {
3002                                 if (!s_quiet)
3003                                         ERR_print_errors(bio_err);
3004                                 goto err;
3005                                 }
3006                         else
3007                                 {
3008                                 BIO_printf(bio_s_out,"read R BLOCK\n");
3009 #if defined(OPENSSL_SYS_NETWARE)
3010             delay(1000);
3011 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
3012                                 sleep(1);
3013 #endif
3014                                 continue;
3015                                 }
3016                         }
3017                 else if (i == 0) /* end of input */
3018                         {
3019                         ret=1;
3020                         goto end;
3021                         }
3022
3023                 /* else we have data */
3024                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
3025                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
3026                         {
3027                         char *p;
3028                         X509 *peer;
3029                         STACK_OF(SSL_CIPHER) *sk;
3030                         static const char *space="                          ";
3031
3032                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
3033                         {
3034                         if (strncmp("GET /renegcert", buf, 14) == 0)
3035                                 SSL_set_verify(con,
3036                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
3037                         i=SSL_renegotiate(con);
3038                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
3039                         i=SSL_do_handshake(con);
3040                         if (i <= 0)
3041                                 {
3042                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
3043                                 ERR_print_errors(bio_err);
3044                                 goto err;
3045                                 }
3046                         /* EVIL HACK! */
3047                         SSL_set_state(con, SSL_ST_ACCEPT);
3048                         i=SSL_do_handshake(con);
3049                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
3050                         if (i <= 0)
3051                                 {
3052                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
3053                                 ERR_print_errors(bio_err);
3054                                 goto err;
3055                                 }
3056                         }
3057
3058                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3059                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
3060                         BIO_puts(io,"<pre>\n");
3061 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
3062                         BIO_puts(io,"\n");
3063                         for (i=0; i<local_argc; i++)
3064                                 {
3065                                 BIO_puts(io,local_argv[i]);
3066                                 BIO_write(io," ",1);
3067                                 }
3068                         BIO_puts(io,"\n");
3069
3070                         BIO_printf(io,
3071                                 "Secure Renegotiation IS%s supported\n",
3072                                 SSL_get_secure_renegotiation_support(con) ?
3073                                                         "" : " NOT");
3074
3075                         /* The following is evil and should not really
3076                          * be done */
3077                         BIO_printf(io,"Ciphers supported in s_server binary\n");
3078                         sk=SSL_get_ciphers(con);
3079                         j=sk_SSL_CIPHER_num(sk);
3080                         for (i=0; i<j; i++)
3081                                 {
3082                                 c=sk_SSL_CIPHER_value(sk,i);
3083                                 BIO_printf(io,"%-11s:%-25s",
3084                                         SSL_CIPHER_get_version(c),
3085                                         SSL_CIPHER_get_name(c));
3086                                 if ((((i+1)%2) == 0) && (i+1 != j))
3087                                         BIO_puts(io,"\n");
3088                                 }
3089                         BIO_puts(io,"\n");
3090                         p=SSL_get_shared_ciphers(con,buf,bufsize);
3091                         if (p != NULL)
3092                                 {
3093                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
3094                                 j=i=0;
3095                                 while (*p)
3096                                         {
3097                                         if (*p == ':')
3098                                                 {
3099                                                 BIO_write(io,space,26-j);
3100                                                 i++;
3101                                                 j=0;
3102                                                 BIO_write(io,((i%3)?" ":"\n"),1);
3103                                                 }
3104                                         else
3105                                                 {
3106                                                 BIO_write(io,p,1);
3107                                                 j++;
3108                                                 }
3109                                         p++;
3110                                         }
3111                                 BIO_puts(io,"\n");
3112                                 }
3113                         ssl_print_sigalgs(io, con);
3114 #ifndef OPENSSL_NO_EC
3115                         ssl_print_curves(io, con, 0);
3116 #endif
3117                         BIO_printf(io,(SSL_cache_hit(con)
3118                                 ?"---\nReused, "
3119                                 :"---\nNew, "));
3120                         c=SSL_get_current_cipher(con);
3121                         BIO_printf(io,"%s, Cipher is %s\n",
3122                                 SSL_CIPHER_get_version(c),
3123                                 SSL_CIPHER_get_name(c));
3124                         SSL_SESSION_print(io,SSL_get_session(con));
3125                         BIO_printf(io,"---\n");
3126                         print_stats(io,SSL_get_SSL_CTX(con));
3127                         BIO_printf(io,"---\n");
3128                         peer=SSL_get_peer_certificate(con);
3129                         if (peer != NULL)
3130                                 {
3131                                 BIO_printf(io,"Client certificate\n");
3132                                 X509_print(io,peer);
3133                                 PEM_write_bio_X509(io,peer);
3134                                 }
3135                         else
3136                                 BIO_puts(io,"no client certificate available\n");
3137                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
3138                         break;
3139                         }
3140                 else if ((www == 2 || www == 3)
3141                          && (strncmp("GET /",buf,5) == 0))
3142                         {
3143                         BIO *file;
3144                         char *p,*e;
3145                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3146
3147                         /* skip the '/' */
3148                         p= &(buf[5]);
3149
3150                         dot = 1;
3151                         for (e=p; *e != '\0'; e++)
3152                                 {
3153                                 if (e[0] == ' ')
3154                                         break;
3155
3156                                 switch (dot)
3157                                         {
3158                                 case 1:
3159                                         dot = (e[0] == '.') ? 2 : 0;
3160                                         break;
3161                                 case 2:
3162                                         dot = (e[0] == '.') ? 3 : 0;
3163                                         break;
3164                                 case 3:
3165                                         dot = (e[0] == '/') ? -1 : 0;
3166                                         break;
3167                                         }
3168                                 if (dot == 0)
3169                                         dot = (e[0] == '/') ? 1 : 0;
3170                                 }
3171                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
3172
3173                         if (*e == '\0')
3174                                 {
3175                                 BIO_puts(io,text);
3176                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
3177                                 break;
3178                                 }
3179                         *e='\0';
3180
3181                         if (dot)
3182                                 {
3183                                 BIO_puts(io,text);
3184                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
3185                                 break;
3186                                 }
3187
3188                         if (*p == '/')
3189                                 {
3190                                 BIO_puts(io,text);
3191                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
3192                                 break;
3193                                 }
3194
3195 #if 0
3196                         /* append if a directory lookup */
3197                         if (e[-1] == '/')
3198                                 strcat(p,"index.html");
3199 #endif
3200
3201                         /* if a directory, do the index thang */
3202                         if (app_isdir(p)>0)
3203                                 {
3204 #if 0 /* must check buffer size */
3205                                 strcat(p,"/index.html");
3206 #else
3207                                 BIO_puts(io,text);
3208                                 BIO_printf(io,"'%s' is a directory\r\n",p);
3209                                 break;
3210 #endif
3211                                 }
3212
3213                         if ((file=BIO_new_file(p,"r")) == NULL)
3214                                 {
3215                                 BIO_puts(io,text);
3216                                 BIO_printf(io,"Error opening '%s'\r\n",p);
3217                                 ERR_print_errors(io);
3218                                 break;
3219                                 }
3220
3221                         if (!s_quiet)
3222                                 BIO_printf(bio_err,"FILE:%s\n",p);
3223
3224                         if (www == 2)
3225                                 {
3226                                 i=strlen(p);
3227                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
3228                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
3229                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
3230                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3231                                 else
3232                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3233                                 }
3234                         /* send the file */
3235                         for (;;)
3236                                 {
3237                                 i=BIO_read(file,buf,bufsize);
3238                                 if (i <= 0) break;
3239
3240 #ifdef RENEG
3241                                 total_bytes+=i;
3242                                 fprintf(stderr,"%d\n",i);
3243                                 if (total_bytes > 3*1024)
3244                                         {
3245                                         total_bytes=0;
3246                                         fprintf(stderr,"RENEGOTIATE\n");
3247                                         SSL_renegotiate(con);
3248                                         }
3249 #endif
3250
3251                                 for (j=0; j<i; )
3252                                         {
3253 #ifdef RENEG
3254 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
3255 #endif
3256                                         k=BIO_write(io,&(buf[j]),i-j);
3257                                         if (k <= 0)
3258                                                 {
3259                                                 if (!BIO_should_retry(io))
3260                                                         goto write_error;
3261                                                 else
3262                                                         {
3263                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
3264                                                         }
3265                                                 }
3266                                         else
3267                                                 {
3268                                                 j+=k;
3269                                                 }
3270                                         }
3271                                 }
3272 write_error:
3273                         BIO_free(file);
3274                         break;
3275                         }
3276                 }
3277
3278         for (;;)
3279                 {
3280                 i=(int)BIO_flush(io);
3281                 if (i <= 0)
3282                         {
3283                         if (!BIO_should_retry(io))
3284                                 break;
3285                         }
3286                 else
3287                         break;
3288                 }
3289 end:
3290 #if 1
3291         /* make sure we re-use sessions */
3292         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3293 #else
3294         /* This kills performance */
3295 /*      SSL_shutdown(con); A shutdown gets sent in the
3296  *      BIO_free_all(io) procession */
3297 #endif
3298
3299 err:
3300
3301         if (ret >= 0)
3302                 BIO_printf(bio_s_out,"ACCEPT\n");
3303
3304         if (buf != NULL) OPENSSL_free(buf);
3305         if (io != NULL) BIO_free_all(io);
3306 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3307         return(ret);
3308         }
3309
3310 static int rev_body(char *hostname, int s, int stype, unsigned char *context)
3311         {
3312         char *buf=NULL;
3313         int i;
3314         int ret=1;
3315         SSL *con;
3316         BIO *io,*ssl_bio,*sbio;
3317 #ifndef OPENSSL_NO_KRB5
3318         KSSL_CTX *kctx;
3319 #endif
3320
3321         buf=OPENSSL_malloc(bufsize);
3322         if (buf == NULL) return(0);
3323         io=BIO_new(BIO_f_buffer());
3324         ssl_bio=BIO_new(BIO_f_ssl());
3325         if ((io == NULL) || (ssl_bio == NULL)) goto err;
3326
3327         /* lets make the output buffer a reasonable size */
3328         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
3329
3330         if ((con=SSL_new(ctx)) == NULL) goto err;
3331 #ifndef OPENSSL_NO_TLSEXT
3332         if (s_tlsextdebug)
3333                 {
3334                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3335                 SSL_set_tlsext_debug_arg(con, bio_s_out);
3336                 }
3337 #endif
3338 #ifndef OPENSSL_NO_KRB5
3339         if ((kctx = kssl_ctx_new()) != NULL)
3340                 {
3341                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
3342                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
3343                 }
3344 #endif  /* OPENSSL_NO_KRB5 */
3345         if(context) SSL_set_session_id_context(con, context,
3346                                                strlen((char *)context));
3347
3348         sbio=BIO_new_socket(s,BIO_NOCLOSE);
3349         SSL_set_bio(con,sbio,sbio);
3350         SSL_set_accept_state(con);
3351
3352         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
3353         BIO_push(io,ssl_bio);
3354 #ifdef CHARSET_EBCDIC
3355         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
3356 #endif
3357
3358         if (s_debug)
3359                 {
3360                 SSL_set_debug(con, 1);
3361                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
3362                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
3363                 }
3364         if (s_msg)
3365                 {
3366 #ifndef OPENSSL_NO_SSL_TRACE
3367                 if (s_msg == 2)
3368                         SSL_set_msg_callback(con, SSL_trace);
3369                 else
3370 #endif
3371                         SSL_set_msg_callback(con, msg_cb);
3372                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3373                 }
3374
3375         for (;;)
3376                 {
3377                 i = BIO_do_handshake(io);
3378                 if (i > 0)
3379                         break;
3380                 if (!BIO_should_retry(io))
3381                         {
3382                         BIO_puts(bio_err, "CONNECTION FAILURE\n");
3383                         ERR_print_errors(bio_err);
3384                         goto end;
3385                         }
3386                 }
3387         BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3388         print_ssl_summary(bio_err, con);
3389
3390         for (;;)
3391                 {
3392                 i=BIO_gets(io,buf,bufsize-1);
3393                 if (i < 0) /* error */
3394                         {
3395                         if (!BIO_should_retry(io))
3396                                 {
3397                                 if (!s_quiet)
3398                                         ERR_print_errors(bio_err);
3399                                 goto err;
3400                                 }
3401                         else
3402                                 {
3403                                 BIO_printf(bio_s_out,"read R BLOCK\n");
3404 #if defined(OPENSSL_SYS_NETWARE)
3405             delay(1000);
3406 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
3407                                 sleep(1);
3408 #endif
3409                                 continue;
3410                                 }
3411                         }
3412                 else if (i == 0) /* end of input */
3413                         {
3414                         ret=1;
3415                         BIO_printf(bio_err, "CONNECTION CLOSED\n");
3416                         goto end;
3417                         }
3418                 else
3419                         {
3420                         char *p = buf + i - 1;
3421                         while(i && (*p == '\n' || *p == '\r'))
3422                                 {
3423                                 p--;
3424                                 i--;
3425                                 }
3426                         if (!s_ign_eof && i == 5 && !strncmp(buf, "CLOSE", 5))
3427                                 {
3428                                 ret = 1;
3429                                 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3430                                 goto end;
3431                                 }
3432                         BUF_reverse((unsigned char *)buf, NULL, i);
3433                         buf[i] = '\n';
3434                         BIO_write(io, buf, i + 1);
3435                         for (;;)
3436                                 {
3437                                 i = BIO_flush(io);
3438                                 if (i > 0)
3439                                         break;
3440                                 if (!BIO_should_retry(io))
3441                                         goto end;
3442                                 }
3443                         }
3444                 }
3445 end:
3446         /* make sure we re-use sessions */
3447         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3448
3449 err:
3450
3451         if (buf != NULL) OPENSSL_free(buf);
3452         if (io != NULL) BIO_free_all(io);
3453         return(ret);
3454         }
3455
3456 #ifndef OPENSSL_NO_RSA
3457 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3458         {
3459         BIGNUM *bn = NULL;
3460         static RSA *rsa_tmp=NULL;
3461
3462         if (!rsa_tmp && ((bn = BN_new()) == NULL))
3463                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
3464         if (!rsa_tmp && bn)
3465                 {
3466                 if (!s_quiet)
3467                         {
3468                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
3469                         (void)BIO_flush(bio_err);
3470                         }
3471                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3472                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
3473                         {
3474                         if(rsa_tmp) RSA_free(rsa_tmp);
3475                         rsa_tmp = NULL;
3476                         }
3477                 if (!s_quiet)
3478                         {
3479                         BIO_printf(bio_err,"\n");
3480                         (void)BIO_flush(bio_err);
3481                         }
3482                 BN_free(bn);
3483                 }
3484         return(rsa_tmp);
3485         }
3486 #endif
3487
3488 #define MAX_SESSION_ID_ATTEMPTS 10
3489 static int generate_session_id(const SSL *ssl, unsigned char *id,
3490                                 unsigned int *id_len)
3491         {
3492         unsigned int count = 0;
3493         do      {
3494                 RAND_pseudo_bytes(id, *id_len);
3495                 /* Prefix the session_id with the required prefix. NB: If our
3496                  * prefix is too long, clip it - but there will be worse effects
3497                  * anyway, eg. the server could only possibly create 1 session
3498                  * ID (ie. the prefix!) so all future session negotiations will
3499                  * fail due to conflicts. */
3500                 memcpy(id, session_id_prefix,
3501                         (strlen(session_id_prefix) < *id_len) ?
3502                         strlen(session_id_prefix) : *id_len);
3503                 }
3504         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3505                 (++count < MAX_SESSION_ID_ATTEMPTS));
3506         if(count >= MAX_SESSION_ID_ATTEMPTS)
3507                 return 0;
3508         return 1;
3509         }
3510
3511 /* By default s_server uses an in-memory cache which caches SSL_SESSION
3512  * structures without any serialisation. This hides some bugs which only
3513  * become apparent in deployed servers. By implementing a basic external
3514  * session cache some issues can be debugged using s_server.
3515  */
3516
3517 typedef struct simple_ssl_session_st
3518         {
3519         unsigned char *id;
3520         unsigned int idlen;
3521         unsigned char *der;
3522         int derlen;
3523         struct simple_ssl_session_st *next;
3524         } simple_ssl_session;
3525
3526 static simple_ssl_session *first = NULL;
3527
3528 static int add_session(SSL *ssl, SSL_SESSION *session)
3529         {
3530         simple_ssl_session *sess;
3531         unsigned char *p;
3532
3533         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3534
3535         SSL_SESSION_get_id(session, &sess->idlen);
3536         sess->derlen = i2d_SSL_SESSION(session, NULL);
3537
3538         sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3539
3540         sess->der = OPENSSL_malloc(sess->derlen);
3541         p = sess->der;
3542         i2d_SSL_SESSION(session, &p);
3543
3544         sess->next = first;
3545         first = sess;
3546         BIO_printf(bio_err, "New session added to external cache\n");
3547         return 0;
3548         }
3549
3550 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3551                                         int *do_copy)
3552         {
3553         simple_ssl_session *sess;
3554         *do_copy = 0;
3555         for (sess = first; sess; sess = sess->next)
3556                 {
3557                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3558                         {
3559                         const unsigned char *p = sess->der;
3560                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3561                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3562                         }
3563                 }
3564         BIO_printf(bio_err, "Lookup session: cache miss\n");
3565         return NULL;
3566         }
3567
3568 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3569         {
3570         simple_ssl_session *sess, *prev = NULL;
3571         const unsigned char *id;
3572         unsigned int idlen;
3573         id = SSL_SESSION_get_id(session, &idlen);
3574         for (sess = first; sess; sess = sess->next)
3575                 {
3576                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
3577                         {
3578                         if(prev)
3579                                 prev->next = sess->next;
3580                         else
3581                                 first = sess->next;
3582                         OPENSSL_free(sess->id);
3583                         OPENSSL_free(sess->der);
3584                         OPENSSL_free(sess);
3585                         return;
3586                         }
3587                 prev = sess;
3588                 }
3589         }
3590
3591 static void init_session_cache_ctx(SSL_CTX *sctx)
3592         {
3593         SSL_CTX_set_session_cache_mode(sctx,
3594                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
3595         SSL_CTX_sess_set_new_cb(sctx, add_session);
3596         SSL_CTX_sess_set_get_cb(sctx, get_session);
3597         SSL_CTX_sess_set_remove_cb(sctx, del_session);
3598         }
3599
3600 static void free_sessions(void)
3601         {
3602         simple_ssl_session *sess, *tsess;
3603         for (sess = first; sess;)
3604                 {
3605                 OPENSSL_free(sess->id);
3606                 OPENSSL_free(sess->der);
3607                 tsess = sess;
3608                 sess = sess->next;
3609                 OPENSSL_free(tsess);
3610                 }
3611         first = NULL;
3612         }
3613
3614 #ifndef OPENSSL_NO_TLSEXT
3615 static int authz_tlsext_cb(SSL *s, unsigned short ext_type,
3616                            const unsigned char *in,
3617                            unsigned short inlen, int *al,
3618                            void *arg)
3619         {
3620         if (TLSEXT_TYPE_server_authz == ext_type)
3621                 client_provided_server_authz
3622                   = memchr(in,  TLSEXT_AUTHZDATAFORMAT_dtcp, inlen) != NULL;
3623
3624         if (TLSEXT_TYPE_client_authz == ext_type)
3625                 client_provided_client_authz
3626                   = memchr(in, TLSEXT_AUTHZDATAFORMAT_dtcp, inlen) != NULL;
3627
3628         return 1;
3629         }
3630
3631 static int authz_tlsext_generate_cb(SSL *s, unsigned short ext_type,
3632                                     const unsigned char **out, unsigned short *outlen,
3633                                     int *al, void *arg)
3634         {
3635         if (c_auth && client_provided_client_authz && client_provided_server_authz)
3636                 {
3637                 /*if auth_require_reneg flag is set, only send extensions if
3638                   renegotiation has occurred */
3639                 if (!c_auth_require_reneg
3640                     || (c_auth_require_reneg && SSL_num_renegotiations(s)))
3641                         {
3642                         *out = auth_ext_data;
3643                         *outlen = 1;
3644                         return 1;
3645                         }
3646                 }
3647         /* no auth extension to send */
3648         return -1;
3649         }
3650
3651 static int suppdata_cb(SSL *s, unsigned short supp_data_type,
3652                        const unsigned char *in,
3653                        unsigned short inlen, int *al,
3654                        void *arg)
3655         {
3656         if (supp_data_type == TLSEXT_SUPPLEMENTALDATATYPE_authz_data)
3657                 {
3658                 most_recent_supplemental_data = in;
3659                 most_recent_supplemental_data_length = inlen;
3660                 }
3661         return 1;
3662         }
3663
3664 static int auth_suppdata_generate_cb(SSL *s, unsigned short supp_data_type,
3665                                      const unsigned char **out,
3666                                      unsigned short *outlen, int *al, void *arg)
3667         {
3668         if (c_auth && client_provided_client_authz && client_provided_server_authz)
3669                 {
3670                 /*if auth_require_reneg flag is set, only send supplemental data if
3671                   renegotiation has occurred */
3672                 if (!c_auth_require_reneg
3673                     || (c_auth_require_reneg && SSL_num_renegotiations(s)))
3674                         {
3675                         generated_supp_data = OPENSSL_malloc(10);
3676                         memcpy(generated_supp_data, "1234512345", 10);
3677                         *out = generated_supp_data;
3678                         *outlen = 10;
3679                         return 1;
3680                         }
3681                 }
3682         /* no supplemental data to send */
3683         return -1;
3684         }
3685 #endif
3686