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," -trusted_first - Use locally trusted CA's first when building trust chain\n");
 530         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 531         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 532         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 533         BIO_printf(bio_err," -quiet        - No server output\n");
 534         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 535 #ifndef OPENSSL_NO_PSK
 536         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
 537         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 538 # ifndef OPENSSL_NO_JPAKE
 539         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 540 # endif
 541 #endif
 542 #ifndef OPENSSL_NO_SRP
 543         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
 544         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
 545 #endif
 546         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 547         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 548         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
 549         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
 550         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 551         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 552         BIO_printf(bio_err," -dtls1_2      - Just talk DTLSv1.2\n");
 553         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 554         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
 555         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 556         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 557         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 558         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 559         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
 560         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
 561 #ifndef OPENSSL_NO_DH
 562         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 563 #endif
 564 #ifndef OPENSSL_NO_ECDH
 565         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 566 #endif
 567         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
 568         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 569         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 570         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 571         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 572         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 573 #ifndef OPENSSL_NO_ENGINE
 574         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 575 #endif
 576         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 577         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 578 #ifndef OPENSSL_NO_TLSEXT
 579         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 580         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
 581         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 582         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 583         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 584         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 585         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
 586         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
 587         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 588 # ifndef OPENSSL_NO_NEXTPROTONEG
 589         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
 590 # endif
 591         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 592         BIO_printf(bio_err," -alpn arg  - set the advertised protocols for the ALPN extension (comma-separated list)\n");
 593 #endif
 594         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 595         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 596         }
 597
 598 static int local_argc=0;
 599 static char **local_argv;
 600
 601 #ifdef CHARSET_EBCDIC
 602 static int ebcdic_new(BIO *bi);
 603 static int ebcdic_free(BIO *a);
 604 static int ebcdic_read(BIO *b, char *out, int outl);
 605 static int ebcdic_write(BIO *b, const char *in, int inl);
 606 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 607 static int ebcdic_gets(BIO *bp, char *buf, int size);
 608 static int ebcdic_puts(BIO *bp, const char *str);
 609
 610 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 611 static BIO_METHOD methods_ebcdic=
 612         {
 613         BIO_TYPE_EBCDIC_FILTER,
 614         "EBCDIC/ASCII filter",
 615         ebcdic_write,
 616         ebcdic_read,
 617         ebcdic_puts,
 618         ebcdic_gets,
 619         ebcdic_ctrl,
 620         ebcdic_new,
 621         ebcdic_free,
 622         };
 623
 624 typedef struct
 625 {
 626         size_t  alloced;
 627         char    buff[1];
 628 } EBCDIC_OUTBUFF;
 629
 630 BIO_METHOD *BIO_f_ebcdic_filter()
 631 {
 632         return(&methods_ebcdic);
 633 }
 634
 635 static int ebcdic_new(BIO *bi)
 636 {
 637         EBCDIC_OUTBUFF *wbuf;
 638
 639         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 640         wbuf->alloced = 1024;
 641         wbuf->buff[0] = '\0';
 642
 643         bi->ptr=(char *)wbuf;
 644         bi->init=1;
 645         bi->flags=0;
 646         return(1);
 647 }
 648
 649 static int ebcdic_free(BIO *a)
 650 {
 651         if (a == NULL) return(0);
 652         if (a->ptr != NULL)
 653                 OPENSSL_free(a->ptr);
 654         a->ptr=NULL;
 655         a->init=0;
 656         a->flags=0;
 657         return(1);
 658 }
 659
 660 static int ebcdic_read(BIO *b, char *out, int outl)
 661 {
 662         int ret=0;
 663
 664         if (out == NULL || outl == 0) return(0);
 665         if (b->next_bio == NULL) return(0);
 666
 667         ret=BIO_read(b->next_bio,out,outl);
 668         if (ret > 0)
 669                 ascii2ebcdic(out,out,ret);
 670         return(ret);
 671 }
 672
 673 static int ebcdic_write(BIO *b, const char *in, int inl)
 674 {
 675         EBCDIC_OUTBUFF *wbuf;
 676         int ret=0;
 677         int num;
 678         unsigned char n;
 679
 680         if ((in == NULL) || (inl <= 0)) return(0);
 681         if (b->next_bio == NULL) return(0);
 682
 683         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 684
 685         if (inl > (num = wbuf->alloced))
 686         {
 687                 num = num + num;  /* double the size */
 688                 if (num < inl)
 689                         num = inl;
 690                 OPENSSL_free(wbuf);
 691                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 692
 693                 wbuf->alloced = num;
 694                 wbuf->buff[0] = '\0';
 695
 696                 b->ptr=(char *)wbuf;
 697         }
 698
 699         ebcdic2ascii(wbuf->buff, in, inl);
 700
 701         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 702
 703         return(ret);
 704 }
 705
 706 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 707 {
 708         long ret;
 709
 710         if (b->next_bio == NULL) return(0);
 711         switch (cmd)
 712         {
 713         case BIO_CTRL_DUP:
 714                 ret=0L;
 715                 break;
 716         default:
 717                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 718                 break;
 719         }
 720         return(ret);
 721 }
 722
 723 static int ebcdic_gets(BIO *bp, char *buf, int size)
 724 {
 725         int i, ret=0;
 726         if (bp->next_bio == NULL) return(0);
 727 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 728         for (i=0; i<size-1; ++i)
 729         {
 730                 ret = ebcdic_read(bp,&buf[i],1);
 731                 if (ret <= 0)
 732                         break;
 733                 else if (buf[i] == '\n')
 734                 {
 735                         ++i;
 736                         break;
 737                 }
 738         }
 739         if (i < size)
 740                 buf[i] = '\0';
 741         return (ret < 0 && i == 0) ? ret : i;
 742 }
 743
 744 static int ebcdic_puts(BIO *bp, const char *str)
 745 {
 746         if (bp->next_bio == NULL) return(0);
 747         return ebcdic_write(bp, str, strlen(str));
 748 }
 749 #endif
 750
 751 #ifndef OPENSSL_NO_TLSEXT
 752
 753 /* This is a context that we pass to callbacks */
 754 typedef struct tlsextctx_st {
 755    char * servername;
 756    BIO * biodebug;
 757    int extension_error;
 758 } tlsextctx;
 759
 760
 761 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 762         {
 763         tlsextctx * p = (tlsextctx *) arg;
 764         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 765         if (servername && p->biodebug)
 766                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 767
 768         if (!p->servername)
 769                 return SSL_TLSEXT_ERR_NOACK;
 770
 771         if (servername)
 772                 {
 773                 if (strcmp(servername,p->servername))
 774                         return p->extension_error;
 775                 if (ctx2)
 776                         {
 777                         BIO_printf(p->biodebug,"Switching server context.\n");
 778                         SSL_set_SSL_CTX(s,ctx2);
 779                         }
 780                 }
 781         return SSL_TLSEXT_ERR_OK;
 782 }
 783
 784 /* Structure passed to cert status callback */
 785
 786 typedef struct tlsextstatusctx_st {
 787    /* Default responder to use */
 788    char *host, *path, *port;
 789    int use_ssl;
 790    int timeout;
 791    BIO *err;
 792    int verbose;
 793 } tlsextstatusctx;
 794
 795 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
 796
 797 /* Certificate Status callback. This is called when a client includes a
 798  * certificate status request extension.
 799  *
 800  * This is a simplified version. It examines certificates each time and
 801  * makes one OCSP responder query for each request.
 802  *
 803  * A full version would store details such as the OCSP certificate IDs and
 804  * minimise the number of OCSP responses by caching them until they were
 805  * considered "expired".
 806  */
 807
 808 static int cert_status_cb(SSL *s, void *arg)
 809         {
 810         tlsextstatusctx *srctx = arg;
 811         BIO *err = srctx->err;
 812         char *host, *port, *path;
 813         int use_ssl;
 814         unsigned char *rspder = NULL;
 815         int rspderlen;
 816         STACK_OF(OPENSSL_STRING) *aia = NULL;
 817         X509 *x = NULL;
 818         X509_STORE_CTX inctx;
 819         X509_OBJECT obj;
 820         OCSP_REQUEST *req = NULL;
 821         OCSP_RESPONSE *resp = NULL;
 822         OCSP_CERTID *id = NULL;
 823         STACK_OF(X509_EXTENSION) *exts;
 824         int ret = SSL_TLSEXT_ERR_NOACK;
 825         int i;
 826 #if 0
 827 STACK_OF(OCSP_RESPID) *ids;
 828 SSL_get_tlsext_status_ids(s, &ids);
 829 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
 830 #endif
 831         if (srctx->verbose)
 832                 BIO_puts(err, "cert_status: callback called\n");
 833         /* Build up OCSP query from server certificate */
 834         x = SSL_get_certificate(s);
 835         aia = X509_get1_ocsp(x);
 836         if (aia)
 837                 {
 838                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
 839                         &host, &port, &path, &use_ssl))
 840                         {
 841                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
 842                         goto err;
 843                         }
 844                 if (srctx->verbose)
 845                         BIO_printf(err, "cert_status: AIA URL: %s\n",
 846                                         sk_OPENSSL_STRING_value(aia, 0));
 847                 }
 848         else
 849                 {
 850                 if (!srctx->host)
 851                         {
 852                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
 853                         goto done;
 854                         }
 855                 host = srctx->host;
 856                 path = srctx->path;
 857                 port = srctx->port;
 858                 use_ssl = srctx->use_ssl;
 859                 }
 860
 861         if (!X509_STORE_CTX_init(&inctx,
 862                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
 863                                 NULL, NULL))
 864                 goto err;
 865         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
 866                                 X509_get_issuer_name(x),&obj) <= 0)
 867                 {
 868                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
 869                 X509_STORE_CTX_cleanup(&inctx);
 870                 goto done;
 871                 }
 872         req = OCSP_REQUEST_new();
 873         if (!req)
 874                 goto err;
 875         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
 876         X509_free(obj.data.x509);
 877         X509_STORE_CTX_cleanup(&inctx);
 878         if (!id)
 879                 goto err;
 880         if (!OCSP_request_add0_id(req, id))
 881                 goto err;
 882         id = NULL;
 883         /* Add any extensions to the request */
 884         SSL_get_tlsext_status_exts(s, &exts);
 885         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
 886                 {
 887                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
 888                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
 889                         goto err;
 890                 }
 891         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
 892                                         srctx->timeout);
 893         if (!resp)
 894                 {
 895                 BIO_puts(err, "cert_status: error querying responder\n");
 896                 goto done;
 897                 }
 898         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
 899         if (rspderlen <= 0)
 900                 goto err;
 901         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
 902         if (srctx->verbose)
 903                 {
 904                 BIO_puts(err, "cert_status: ocsp response sent:\n");
 905                 OCSP_RESPONSE_print(err, resp, 2);
 906                 }
 907         ret = SSL_TLSEXT_ERR_OK;
 908         done:
 909         if (ret != SSL_TLSEXT_ERR_OK)
 910                 ERR_print_errors(err);
 911         if (aia)
 912                 {
 913                 OPENSSL_free(host);
 914                 OPENSSL_free(path);
 915                 OPENSSL_free(port);
 916                 X509_email_free(aia);
 917                 }
 918         if (id)
 919                 OCSP_CERTID_free(id);
 920         if (req)
 921                 OCSP_REQUEST_free(req);
 922         if (resp)
 923                 OCSP_RESPONSE_free(resp);
 924         return ret;
 925         err:
 926         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
 927         goto done;
 928         }
 929
 930 # ifndef OPENSSL_NO_NEXTPROTONEG
 931 /* This is the context that we pass to next_proto_cb */
 932 typedef struct tlsextnextprotoctx_st {
 933         unsigned char *data;
 934         unsigned int len;
 935 } tlsextnextprotoctx;
 936
 937 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
 938         {
 939         tlsextnextprotoctx *next_proto = arg;
 940
 941         *data = next_proto->data;
 942         *len = next_proto->len;
 943
 944         return SSL_TLSEXT_ERR_OK;
 945         }
 946 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 947
 948 /* This the context that we pass to alpn_cb */
 949 typedef struct tlsextalpnctx_st {
 950         unsigned char *data;
 951         unsigned short len;
 952 } tlsextalpnctx;
 953
 954 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 955         {
 956         tlsextalpnctx *alpn_ctx = arg;
 957
 958         if (!s_quiet)
 959                 {
 960                 /* We can assume that |in| is syntactically valid. */
 961                 unsigned i;
 962                 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
 963                 for (i = 0; i < inlen; )
 964                         {
 965                         if (i)
 966                                 BIO_write(bio_s_out, ", ", 2);
 967                         BIO_write(bio_s_out, &in[i + 1], in[i]);
 968                         i += in[i] + 1;
 969                         }
 970                 BIO_write(bio_s_out, "\n", 1);
 971                 }
 972
 973         if (SSL_select_next_proto((unsigned char**) out, outlen, alpn_ctx->data, alpn_ctx->len, in, inlen) !=
 974             OPENSSL_NPN_NEGOTIATED)
 975                 {
 976                 return SSL_TLSEXT_ERR_NOACK;
 977                 }
 978
 979         if (!s_quiet)
 980                 {
 981                 BIO_printf(bio_s_out, "ALPN protocols selected: ");
 982                 BIO_write(bio_s_out, *out, *outlen);
 983                 BIO_write(bio_s_out, "\n", 1);
 984                 }
 985
 986         return SSL_TLSEXT_ERR_OK;
 987         }
 988 #endif  /* ndef OPENSSL_NO_TLSEXT */
 989
 990 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
 991         {
 992         /* disable resumption for sessions with forward secure ciphers */
 993         return is_forward_secure;
 994         }
 995
 996 int MAIN(int, char **);
 997
 998 #ifndef OPENSSL_NO_JPAKE
 999 static char *jpake_secret = NULL;
1000 #define no_jpake !jpake_secret
1001 #else
1002 #define no_jpake 1
1003 #endif
1004 #ifndef OPENSSL_NO_SRP
1005         static srpsrvparm srp_callback_parm;
1006 #endif
1007 static char *srtp_profiles = NULL;
1008
1009 int MAIN(int argc, char *argv[])
1010         {
1011         X509_VERIFY_PARAM *vpm = NULL;
1012         int badarg = 0;
1013         short port=PORT;
1014         const char *unix_path=NULL;
1015         int unlink_unix_path=0;
1016         int (*server_cb)(char *hostname, int s, int stype, unsigned char *context);
1017         char *CApath=NULL,*CAfile=NULL;
1018         char *chCApath=NULL,*chCAfile=NULL;
1019         char *vfyCApath=NULL,*vfyCAfile=NULL;
1020         unsigned char *context = NULL;
1021         char *dhfile = NULL;
1022         int badop=0;
1023         int ret=1;
1024         int build_chain = 0;
1025         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
1026         int state=0;
1027         const SSL_METHOD *meth=NULL;
1028         int socket_type=SOCK_STREAM;
1029         ENGINE *e=NULL;
1030         char *inrand=NULL;
1031         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
1032         char *passarg = NULL, *pass = NULL;
1033         char *dpassarg = NULL, *dpass = NULL;
1034         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
1035         X509 *s_cert = NULL, *s_dcert = NULL;
1036         STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
1037         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
1038         int no_cache = 0, ext_cache = 0;
1039         int rev = 0, naccept = -1;
1040         int sdebug = 0;
1041 #ifndef OPENSSL_NO_TLSEXT
1042         EVP_PKEY *s_key2 = NULL;
1043         X509 *s_cert2 = NULL;
1044         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
1045 # ifndef OPENSSL_NO_NEXTPROTONEG
1046         const char *next_proto_neg_in = NULL;
1047         tlsextnextprotoctx next_proto = { NULL, 0};
1048 # endif
1049         const char *alpn_in = NULL;
1050         tlsextalpnctx alpn_ctx = { NULL, 0};
1051 #endif
1052 #ifndef OPENSSL_NO_PSK
1053         /* by default do not send a PSK identity hint */
1054         static char *psk_identity_hint=NULL;
1055 #endif
1056 #ifndef OPENSSL_NO_SRP
1057         char *srpuserseed = NULL;
1058         char *srp_verifier_file = NULL;
1059 #endif
1060         SSL_EXCERT *exc = NULL;
1061         SSL_CONF_CTX *cctx = NULL;
1062         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
1063
1064         char *crl_file = NULL;
1065         int crl_format = FORMAT_PEM;
1066         int crl_download = 0;
1067         STACK_OF(X509_CRL) *crls = NULL;
1068
1069         meth=SSLv23_server_method();
1070
1071         local_argc=argc;
1072         local_argv=argv;
1073
1074         apps_startup();
1075 #ifdef MONOLITH
1076         s_server_init();
1077 #endif
1078
1079         if (bio_err == NULL)
1080                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
1081
1082         if (!load_config(bio_err, NULL))
1083                 goto end;
1084
1085         cctx = SSL_CONF_CTX_new();
1086         if (!cctx)
1087                 goto end;
1088         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
1089         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
1090
1091         verify_depth=0;
1092 #ifdef FIONBIO
1093         s_nbio=0;
1094 #endif
1095         s_nbio_test=0;
1096
1097         argc--;
1098         argv++;
1099
1100         while (argc >= 1)
1101                 {
1102                 if      ((strcmp(*argv,"-port") == 0) ||
1103                          (strcmp(*argv,"-accept") == 0))
1104                         {
1105                         if (--argc < 1) goto bad;
1106                         if (!extract_port(*(++argv),&port))
1107                                 goto bad;
1108                         }
1109                 else if (strcmp(*argv,"-unix") == 0)
1110                         {
1111 #ifdef NO_SYS_UN_H
1112                         BIO_printf(bio_err, "unix domain sockets unsupported\n");
1113                         goto bad;
1114 #else
1115                         if (--argc < 1) goto bad;
1116                         unix_path = *(++argv);
1117 #endif
1118                         }
1119                 else if (strcmp(*argv,"-unlink") == 0)
1120                         {
1121 #ifdef NO_SYS_UN_H
1122                         BIO_printf(bio_err, "unix domain sockets unsupported\n");
1123                         goto bad;
1124 #else
1125                         unlink_unix_path = 1;
1126 #endif
1127                         }
1128                 else if (strcmp(*argv,"-naccept") == 0)
1129                         {
1130                         if (--argc < 1) goto bad;
1131                         naccept = atol(*(++argv));
1132                         if (naccept <= 0)
1133                                 {
1134                                 BIO_printf(bio_err, "bad accept value %s\n",
1135                                                         *argv);
1136                                 goto bad;
1137                                 }
1138                         }
1139                 else if (strcmp(*argv,"-verify") == 0)
1140                         {
1141                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1142                         if (--argc < 1) goto bad;
1143                         verify_depth=atoi(*(++argv));
1144                         if (!s_quiet)
1145                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1146                         }
1147                 else if (strcmp(*argv,"-Verify") == 0)
1148                         {
1149                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1150                                 SSL_VERIFY_CLIENT_ONCE;
1151                         if (--argc < 1) goto bad;
1152                         verify_depth=atoi(*(++argv));
1153                         if (!s_quiet)
1154                                 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1155                         }
1156                 else if (strcmp(*argv,"-context") == 0)
1157                         {
1158                         if (--argc < 1) goto bad;
1159                         context= (unsigned char *)*(++argv);
1160                         }
1161                 else if (strcmp(*argv,"-cert") == 0)
1162                         {
1163                         if (--argc < 1) goto bad;
1164                         s_cert_file= *(++argv);
1165                         }
1166                 else if (strcmp(*argv,"-CRL") == 0)
1167                         {
1168                         if (--argc < 1) goto bad;
1169                         crl_file= *(++argv);
1170                         }
1171                 else if (strcmp(*argv,"-crl_download") == 0)
1172                         crl_download = 1;
1173 #ifndef OPENSSL_NO_TLSEXT
1174                 else if (strcmp(*argv,"-serverinfo") == 0)
1175                         {
1176                         if (--argc < 1) goto bad;
1177                         s_serverinfo_file = *(++argv);
1178                         }
1179                 else if (strcmp(*argv,"-auth") == 0)
1180                         {
1181                         c_auth = 1;
1182                         }
1183 #endif
1184                 else if (strcmp(*argv,"-auth_require_reneg") == 0)
1185                         {
1186                         c_auth_require_reneg = 1;
1187                         }
1188                 else if (strcmp(*argv,"-certform") == 0)
1189                         {
1190                         if (--argc < 1) goto bad;
1191                         s_cert_format = str2fmt(*(++argv));
1192                         }
1193                 else if (strcmp(*argv,"-key") == 0)
1194                         {
1195                         if (--argc < 1) goto bad;
1196                         s_key_file= *(++argv);
1197                         }
1198                 else if (strcmp(*argv,"-keyform") == 0)
1199                         {
1200                         if (--argc < 1) goto bad;
1201                         s_key_format = str2fmt(*(++argv));
1202                         }
1203                 else if (strcmp(*argv,"-pass") == 0)
1204                         {
1205                         if (--argc < 1) goto bad;
1206                         passarg = *(++argv);
1207                         }
1208                 else if (strcmp(*argv,"-cert_chain") == 0)
1209                         {
1210                         if (--argc < 1) goto bad;
1211                         s_chain_file= *(++argv);
1212                         }
1213                 else if (strcmp(*argv,"-dhparam") == 0)
1214                         {
1215                         if (--argc < 1) goto bad;
1216                         dhfile = *(++argv);
1217                         }
1218                 else if (strcmp(*argv,"-dcertform") == 0)
1219                         {
1220                         if (--argc < 1) goto bad;
1221                         s_dcert_format = str2fmt(*(++argv));
1222                         }
1223                 else if (strcmp(*argv,"-dcert") == 0)
1224                         {
1225                         if (--argc < 1) goto bad;
1226                         s_dcert_file= *(++argv);
1227                         }
1228                 else if (strcmp(*argv,"-dkeyform") == 0)
1229                         {
1230                         if (--argc < 1) goto bad;
1231                         s_dkey_format = str2fmt(*(++argv));
1232                         }
1233                 else if (strcmp(*argv,"-dpass") == 0)
1234                         {
1235                         if (--argc < 1) goto bad;
1236                         dpassarg = *(++argv);
1237                         }
1238                 else if (strcmp(*argv,"-dkey") == 0)
1239                         {
1240                         if (--argc < 1) goto bad;
1241                         s_dkey_file= *(++argv);
1242                         }
1243                 else if (strcmp(*argv,"-dcert_chain") == 0)
1244                         {
1245                         if (--argc < 1) goto bad;
1246                         s_dchain_file= *(++argv);
1247                         }
1248                 else if (strcmp(*argv,"-nocert") == 0)
1249                         {
1250                         nocert=1;
1251                         }
1252                 else if (strcmp(*argv,"-CApath") == 0)
1253                         {
1254                         if (--argc < 1) goto bad;
1255                         CApath= *(++argv);
1256                         }
1257                 else if (strcmp(*argv,"-chainCApath") == 0)
1258                         {
1259                         if (--argc < 1) goto bad;
1260                         chCApath= *(++argv);
1261                         }
1262                 else if (strcmp(*argv,"-verifyCApath") == 0)
1263                         {
1264                         if (--argc < 1) goto bad;
1265                         vfyCApath= *(++argv);
1266                         }
1267                 else if (strcmp(*argv,"-no_cache") == 0)
1268                         no_cache = 1;
1269                 else if (strcmp(*argv,"-ext_cache") == 0)
1270                         ext_cache = 1;
1271                 else if (strcmp(*argv,"-CRLform") == 0)
1272                         {
1273                         if (--argc < 1) goto bad;
1274                         crl_format = str2fmt(*(++argv));
1275                         }
1276                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1277                         {
1278                         if (badarg)
1279                                 goto bad;
1280                         continue;
1281                         }
1282                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
1283                         {
1284                         if (badarg)
1285                                 goto bad;
1286                         continue;
1287                         }
1288                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
1289                         {
1290                         if (badarg)
1291                                 goto bad;
1292                         continue;
1293                         }
1294                 else if (strcmp(*argv,"-verify_return_error") == 0)
1295                         verify_return_error = 1;
1296                 else if (strcmp(*argv,"-verify_quiet") == 0)
1297                         verify_quiet = 1;
1298                 else if (strcmp(*argv,"-build_chain") == 0)
1299                         build_chain = 1;
1300                 else if (strcmp(*argv,"-CAfile") == 0)
1301                         {
1302                         if (--argc < 1) goto bad;
1303                         CAfile= *(++argv);
1304                         }
1305                 else if (strcmp(*argv,"-chainCAfile") == 0)
1306                         {
1307                         if (--argc < 1) goto bad;
1308                         chCAfile= *(++argv);
1309                         }
1310                 else if (strcmp(*argv,"-verifyCAfile") == 0)
1311                         {
1312                         if (--argc < 1) goto bad;
1313                         vfyCAfile= *(++argv);
1314                         }
1315 #ifdef FIONBIO
1316                 else if (strcmp(*argv,"-nbio") == 0)
1317                         { s_nbio=1; }
1318 #endif
1319                 else if (strcmp(*argv,"-nbio_test") == 0)
1320                         {
1321 #ifdef FIONBIO
1322                         s_nbio=1;
1323 #endif
1324                         s_nbio_test=1;
1325                         }
1326                 else if (strcmp(*argv,"-ign_eof") == 0)
1327                         s_ign_eof=1;
1328                 else if (strcmp(*argv,"-no_ign_eof") == 0)
1329                         s_ign_eof=0;
1330                 else if (strcmp(*argv,"-debug") == 0)
1331                         { s_debug=1; }
1332 #ifndef OPENSSL_NO_TLSEXT
1333                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1334                         s_tlsextdebug=1;
1335                 else if (strcmp(*argv,"-status") == 0)
1336                         s_tlsextstatus=1;
1337                 else if (strcmp(*argv,"-status_verbose") == 0)
1338                         {
1339                         s_tlsextstatus=1;
1340                         tlscstatp.verbose = 1;
1341                         }
1342                 else if (!strcmp(*argv, "-status_timeout"))
1343                         {
1344                         s_tlsextstatus=1;
1345                         if (--argc < 1) goto bad;
1346                         tlscstatp.timeout = atoi(*(++argv));
1347                         }
1348                 else if (!strcmp(*argv, "-status_url"))
1349                         {
1350                         s_tlsextstatus=1;
1351                         if (--argc < 1) goto bad;
1352                         if (!OCSP_parse_url(*(++argv),
1353                                         &tlscstatp.host,
1354                                         &tlscstatp.port,
1355                                         &tlscstatp.path,
1356                                         &tlscstatp.use_ssl))
1357                                 {
1358                                 BIO_printf(bio_err, "Error parsing URL\n");
1359                                 goto bad;
1360                                 }
1361                         }
1362 #endif
1363                 else if (strcmp(*argv,"-msg") == 0)
1364                         { s_msg=1; }
1365                 else if (strcmp(*argv,"-msgfile") == 0)
1366                         {
1367                         if (--argc < 1) goto bad;
1368                         bio_s_msg = BIO_new_file(*(++argv), "w");
1369                         }
1370 #ifndef OPENSSL_NO_SSL_TRACE
1371                 else if (strcmp(*argv,"-trace") == 0)
1372                         { s_msg=2; }
1373 #endif
1374                 else if (strcmp(*argv,"-security_debug") == 0)
1375                         { sdebug=1; }
1376                 else if (strcmp(*argv,"-security_debug_verbose") == 0)
1377                         { sdebug=2; }
1378                 else if (strcmp(*argv,"-hack") == 0)
1379                         { hack=1; }
1380                 else if (strcmp(*argv,"-state") == 0)
1381                         { state=1; }
1382                 else if (strcmp(*argv,"-crlf") == 0)
1383                         { s_crlf=1; }
1384                 else if (strcmp(*argv,"-quiet") == 0)
1385                         { s_quiet=1; }
1386                 else if (strcmp(*argv,"-brief") == 0)
1387                         {
1388                         s_quiet=1;
1389                         s_brief=1;
1390                         verify_quiet=1;
1391                         }
1392                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1393                         { no_tmp_rsa=1; }
1394                 else if (strcmp(*argv,"-no_dhe") == 0)
1395                         { no_dhe=1; }
1396                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1397                         { no_ecdhe=1; }
1398                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1399                         { no_resume_ephemeral = 1; }
1400 #ifndef OPENSSL_NO_PSK
1401                 else if (strcmp(*argv,"-psk_hint") == 0)
1402                         {
1403                         if (--argc < 1) goto bad;
1404                         psk_identity_hint= *(++argv);
1405                         }
1406                 else if (strcmp(*argv,"-psk") == 0)
1407                         {
1408                         size_t i;
1409
1410                         if (--argc < 1) goto bad;
1411                         psk_key=*(++argv);
1412                         for (i=0; i<strlen(psk_key); i++)
1413                                 {
1414                                 if (isxdigit((unsigned char)psk_key[i]))
1415                                         continue;
1416                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1417                                 goto bad;
1418                                 }
1419                         }
1420 #endif
1421 #ifndef OPENSSL_NO_SRP
1422                 else if (strcmp(*argv, "-srpvfile") == 0)
1423                         {
1424                         if (--argc < 1) goto bad;
1425                         srp_verifier_file = *(++argv);
1426                         meth = TLSv1_server_method();
1427                         }
1428                 else if (strcmp(*argv, "-srpuserseed") == 0)
1429                         {
1430                         if (--argc < 1) goto bad;
1431                         srpuserseed = *(++argv);
1432                         meth = TLSv1_server_method();
1433                         }
1434 #endif
1435                 else if (strcmp(*argv,"-rev") == 0)
1436                         { rev=1; }
1437                 else if (strcmp(*argv,"-www") == 0)
1438                         { www=1; }
1439                 else if (strcmp(*argv,"-WWW") == 0)
1440                         { www=2; }
1441                 else if (strcmp(*argv,"-HTTP") == 0)
1442                         { www=3; }
1443 #ifndef OPENSSL_NO_SSL2
1444                 else if (strcmp(*argv,"-ssl2") == 0)
1445                         { meth=SSLv2_server_method(); }
1446 #endif
1447 #ifndef OPENSSL_NO_SSL3
1448                 else if (strcmp(*argv,"-ssl3") == 0)
1449                         { meth=SSLv3_server_method(); }
1450 #endif
1451 #ifndef OPENSSL_NO_TLS1
1452                 else if (strcmp(*argv,"-tls1") == 0)
1453                         { meth=TLSv1_server_method(); }
1454                 else if (strcmp(*argv,"-tls1_1") == 0)
1455                         { meth=TLSv1_1_server_method(); }
1456                 else if (strcmp(*argv,"-tls1_2") == 0)
1457                         { meth=TLSv1_2_server_method(); }
1458 #endif
1459 #ifndef OPENSSL_NO_DTLS1
1460                 else if (strcmp(*argv,"-dtls") == 0)
1461                         {
1462                         meth=DTLS_server_method();
1463                         socket_type = SOCK_DGRAM;
1464                         }
1465                 else if (strcmp(*argv,"-dtls1") == 0)
1466                         {
1467                         meth=DTLSv1_server_method();
1468                         socket_type = SOCK_DGRAM;
1469                         }
1470                 else if (strcmp(*argv,"-dtls1_2") == 0)
1471                         {
1472                         meth=DTLSv1_2_server_method();
1473                         socket_type = SOCK_DGRAM;
1474                         }
1475                 else if (strcmp(*argv,"-timeout") == 0)
1476                         enable_timeouts = 1;
1477                 else if (strcmp(*argv,"-mtu") == 0)
1478                         {
1479                         if (--argc < 1) goto bad;
1480                         socket_mtu = atol(*(++argv));
1481                         }
1482                 else if (strcmp(*argv, "-chain") == 0)
1483                         cert_chain = 1;
1484 #endif
1485                 else if (strcmp(*argv, "-id_prefix") == 0)
1486                         {
1487                         if (--argc < 1) goto bad;
1488                         session_id_prefix = *(++argv);
1489                         }
1490 #ifndef OPENSSL_NO_ENGINE
1491                 else if (strcmp(*argv,"-engine") == 0)
1492                         {
1493                         if (--argc < 1) goto bad;
1494                         engine_id= *(++argv);
1495                         }
1496 #endif
1497                 else if (strcmp(*argv,"-rand") == 0)
1498                         {
1499                         if (--argc < 1) goto bad;
1500                         inrand= *(++argv);
1501                         }
1502 #ifndef OPENSSL_NO_TLSEXT
1503                 else if (strcmp(*argv,"-servername") == 0)
1504                         {
1505                         if (--argc < 1) goto bad;
1506                         tlsextcbp.servername= *(++argv);
1507                         }
1508                 else if (strcmp(*argv,"-servername_fatal") == 0)
1509                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1510                 else if (strcmp(*argv,"-cert2") == 0)
1511                         {
1512                         if (--argc < 1) goto bad;
1513                         s_cert_file2= *(++argv);
1514                         }
1515                 else if (strcmp(*argv,"-key2") == 0)
1516                         {
1517                         if (--argc < 1) goto bad;
1518                         s_key_file2= *(++argv);
1519                         }
1520 # ifndef OPENSSL_NO_NEXTPROTONEG
1521                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1522                         {
1523                         if (--argc < 1) goto bad;
1524                         next_proto_neg_in = *(++argv);
1525                         }
1526 # endif
1527                 else if (strcmp(*argv,"-alpn") == 0)
1528                         {
1529                         if (--argc < 1) goto bad;
1530                         alpn_in = *(++argv);
1531                         }
1532 #endif
1533 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1534                 else if (strcmp(*argv,"-jpake") == 0)
1535                         {
1536                         if (--argc < 1) goto bad;
1537                         jpake_secret = *(++argv);
1538                         }
1539 #endif
1540                 else if (strcmp(*argv,"-use_srtp") == 0)
1541                         {
1542                         if (--argc < 1) goto bad;
1543                         srtp_profiles = *(++argv);
1544                         }
1545                 else if (strcmp(*argv,"-keymatexport") == 0)
1546                         {
1547                         if (--argc < 1) goto bad;
1548                         keymatexportlabel= *(++argv);
1549                         }
1550                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1551                         {
1552                         if (--argc < 1) goto bad;
1553                         keymatexportlen=atoi(*(++argv));
1554                         if (keymatexportlen == 0) goto bad;
1555                         }
1556                 else
1557                         {
1558                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1559                         badop=1;
1560                         break;
1561                         }
1562                 argc--;
1563                 argv++;
1564                 }
1565         if (badop)
1566                 {
1567 bad:
1568                 sv_usage();
1569                 goto end;
1570                 }
1571
1572         if (unix_path && (socket_type != SOCK_STREAM))
1573                 {
1574                 BIO_printf(bio_err, "Can't use unix sockets and datagrams together\n");
1575                         goto end;
1576                 }
1577 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1578         if (jpake_secret)
1579                 {
1580                 if (psk_key)
1581                         {
1582                         BIO_printf(bio_err,
1583                                    "Can't use JPAKE and PSK together\n");
1584                         goto end;
1585                         }
1586                 psk_identity = "JPAKE";
1587                 }
1588 #endif
1589
1590         SSL_load_error_strings();
1591         OpenSSL_add_ssl_algorithms();
1592
1593 #ifndef OPENSSL_NO_ENGINE
1594         e = setup_engine(bio_err, engine_id, 1);
1595 #endif
1596
1597         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1598                 {
1599                 BIO_printf(bio_err, "Error getting password\n");
1600                 goto end;
1601                 }
1602
1603
1604         if (s_key_file == NULL)
1605                 s_key_file = s_cert_file;
1606 #ifndef OPENSSL_NO_TLSEXT
1607         if (s_key_file2 == NULL)
1608                 s_key_file2 = s_cert_file2;
1609 #endif
1610
1611         if (!load_excert(&exc, bio_err))
1612                 goto end;
1613
1614         if (nocert == 0)
1615                 {
1616                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1617                        "server certificate private key file");
1618                 if (!s_key)
1619                         {
1620                         ERR_print_errors(bio_err);
1621                         goto end;
1622                         }
1623
1624                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1625                         NULL, e, "server certificate file");
1626
1627                 if (!s_cert)
1628                         {
1629                         ERR_print_errors(bio_err);
1630                         goto end;
1631                         }
1632                 if (s_chain_file)
1633                         {
1634                         s_chain = load_certs(bio_err, s_chain_file,FORMAT_PEM,
1635                                         NULL, e, "server certificate chain");
1636                         if (!s_chain)
1637                                 goto end;
1638                         }
1639
1640 #ifndef OPENSSL_NO_TLSEXT
1641                 if (tlsextcbp.servername)
1642                         {
1643                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1644                                 "second server certificate private key file");
1645                         if (!s_key2)
1646                                 {
1647                                 ERR_print_errors(bio_err);
1648                                 goto end;
1649                                 }
1650
1651                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1652                                 NULL, e, "second server certificate file");
1653
1654                         if (!s_cert2)
1655                                 {
1656                                 ERR_print_errors(bio_err);
1657                                 goto end;
1658                                 }
1659                         }
1660 #endif /* OPENSSL_NO_TLSEXT */
1661                 }
1662
1663 #if !defined(OPENSSL_NO_TLSEXT)
1664 # if !defined(OPENSSL_NO_NEXTPROTONEG)
1665         if (next_proto_neg_in)
1666                 {
1667                 unsigned short len;
1668                 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1669                 if (next_proto.data == NULL)
1670                         goto end;
1671                 next_proto.len = len;
1672                 }
1673         else
1674                 {
1675                 next_proto.data = NULL;
1676                 }
1677 # endif
1678         alpn_ctx.data = NULL;
1679         if (alpn_in)
1680                 {
1681                 unsigned short len;
1682                 alpn_ctx.data = next_protos_parse(&len, alpn_in);
1683                 if (alpn_ctx.data == NULL)
1684                         goto end;
1685                 alpn_ctx.len = len;
1686                 }
1687 #endif
1688
1689         if (crl_file)
1690                 {
1691                 X509_CRL *crl;
1692                 crl = load_crl(crl_file, crl_format);
1693                 if (!crl)
1694                         {
1695                         BIO_puts(bio_err, "Error loading CRL\n");
1696                         ERR_print_errors(bio_err);
1697                         goto end;
1698                         }
1699                 crls = sk_X509_CRL_new_null();
1700                 if (!crls || !sk_X509_CRL_push(crls, crl))
1701                         {
1702                         BIO_puts(bio_err, "Error adding CRL\n");
1703                         ERR_print_errors(bio_err);
1704                         X509_CRL_free(crl);
1705                         goto end;
1706                         }
1707                 }
1708
1709
1710         if (s_dcert_file)
1711                 {
1712
1713                 if (s_dkey_file == NULL)
1714                         s_dkey_file = s_dcert_file;
1715
1716                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1717                                 0, dpass, e,
1718                                "second certificate private key file");
1719                 if (!s_dkey)
1720                         {
1721                         ERR_print_errors(bio_err);
1722                         goto end;
1723                         }
1724
1725                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1726                                 NULL, e, "second server certificate file");
1727
1728                 if (!s_dcert)
1729                         {
1730                         ERR_print_errors(bio_err);
1731                         goto end;
1732                         }
1733                 if (s_dchain_file)
1734                         {
1735                         s_dchain = load_certs(bio_err, s_dchain_file,FORMAT_PEM,
1736                                 NULL, e, "second server certificate chain");
1737                         if (!s_dchain)
1738                                 goto end;
1739                         }
1740
1741                 }
1742
1743         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1744                 && !RAND_status())
1745                 {
1746                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1747                 }
1748         if (inrand != NULL)
1749                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1750                         app_RAND_load_files(inrand));
1751
1752         if (bio_s_out == NULL)
1753                 {
1754                 if (s_quiet && !s_debug)
1755                         {
1756                         bio_s_out=BIO_new(BIO_s_null());
1757                         if (s_msg && !bio_s_msg)
1758                                 bio_s_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1759                         }
1760                 else
1761                         {
1762                         if (bio_s_out == NULL)
1763                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1764                         }
1765                 }
1766
1767 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1768         if (nocert)
1769 #endif
1770                 {
1771                 s_cert_file=NULL;
1772                 s_key_file=NULL;
1773                 s_dcert_file=NULL;
1774                 s_dkey_file=NULL;
1775 #ifndef OPENSSL_NO_TLSEXT
1776                 s_cert_file2=NULL;
1777                 s_key_file2=NULL;
1778 #endif
1779                 }
1780
1781         ctx=SSL_CTX_new(meth);
1782         if (sdebug)
1783                 ssl_ctx_security_debug(ctx, bio_err, sdebug);
1784         if (ctx == NULL)
1785                 {
1786                 ERR_print_errors(bio_err);
1787                 goto end;
1788                 }
1789         if (session_id_prefix)
1790                 {
1791                 if(strlen(session_id_prefix) >= 32)
1792                         BIO_printf(bio_err,
1793 "warning: id_prefix is too long, only one new session will be possible\n");
1794                 else if(strlen(session_id_prefix) >= 16)
1795                         BIO_printf(bio_err,
1796 "warning: id_prefix is too long if you use SSLv2\n");
1797                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1798                         {
1799                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1800                         ERR_print_errors(bio_err);
1801                         goto end;
1802                         }
1803                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1804                 }
1805         SSL_CTX_set_quiet_shutdown(ctx,1);
1806         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1807         if (exc) ssl_ctx_set_excert(ctx, exc);
1808         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1809          * Setting read ahead solves this problem.
1810          */
1811         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1812
1813         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1814         if (no_cache)
1815                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1816         else if (ext_cache)
1817                 init_session_cache_ctx(ctx);
1818         else
1819                 SSL_CTX_sess_set_cache_size(ctx,128);
1820
1821         if (srtp_profiles != NULL)
1822                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1823
1824 #if 0
1825         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1826 #endif
1827
1828 #if 0
1829         if (s_cert_file == NULL)
1830                 {
1831                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1832                 goto end;
1833                 }
1834 #endif
1835
1836         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1837                 (!SSL_CTX_set_default_verify_paths(ctx)))
1838                 {
1839                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1840                 ERR_print_errors(bio_err);
1841                 /* goto end; */
1842                 }
1843         if (vpm)
1844                 SSL_CTX_set1_param(ctx, vpm);
1845
1846         ssl_ctx_add_crls(ctx, crls, 0);
1847         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1848                 goto end;
1849
1850         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1851                                                 crls, crl_download))
1852                 {
1853                 BIO_printf(bio_err, "Error loading store locations\n");
1854                 ERR_print_errors(bio_err);
1855                 goto end;
1856                 }
1857
1858 #ifndef OPENSSL_NO_TLSEXT
1859         if (s_cert2)
1860                 {
1861                 ctx2=SSL_CTX_new(meth);
1862                 if (ctx2 == NULL)
1863                         {
1864                         ERR_print_errors(bio_err);
1865                         goto end;
1866                         }
1867                 }
1868
1869         if (ctx2)
1870                 {
1871                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1872
1873                 if (sdebug)
1874                         ssl_ctx_security_debug(ctx, bio_err, sdebug);
1875
1876                 if (session_id_prefix)
1877                         {
1878                         if(strlen(session_id_prefix) >= 32)
1879                                 BIO_printf(bio_err,
1880                                         "warning: id_prefix is too long, only one new session will be possible\n");
1881                         else if(strlen(session_id_prefix) >= 16)
1882                                 BIO_printf(bio_err,
1883                                         "warning: id_prefix is too long if you use SSLv2\n");
1884                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1885                                 {
1886                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1887                                 ERR_print_errors(bio_err);
1888                                 goto end;
1889                                 }
1890                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1891                         }
1892                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1893                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1894                 if (exc) ssl_ctx_set_excert(ctx2, exc);
1895                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1896                  * Setting read ahead solves this problem.
1897                  */
1898                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1899
1900                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1901
1902                 if (no_cache)
1903                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1904                 else if (ext_cache)
1905                         init_session_cache_ctx(ctx2);
1906                 else
1907                         SSL_CTX_sess_set_cache_size(ctx2,128);
1908
1909                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1910                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1911                         {
1912                         ERR_print_errors(bio_err);
1913                         }
1914                 if (vpm)
1915                         SSL_CTX_set1_param(ctx2, vpm);
1916
1917                 ssl_ctx_add_crls(ctx2, crls, 0);
1918                 if (!args_ssl_call(ctx2, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1919                         goto end;
1920                 }
1921
1922 # ifndef OPENSSL_NO_NEXTPROTONEG
1923         if (next_proto.data)
1924                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1925 # endif
1926         if (alpn_ctx.data)
1927                 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1928 #endif
1929
1930 #ifndef OPENSSL_NO_DH
1931         if (!no_dhe)
1932                 {
1933                 DH *dh=NULL;
1934
1935                 if (dhfile)
1936                         dh = load_dh_param(dhfile);
1937                 else if (s_cert_file)
1938                         dh = load_dh_param(s_cert_file);
1939
1940                 if (dh != NULL)
1941                         {
1942                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1943                         }
1944                 else
1945                         {
1946                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1947                         }
1948                 (void)BIO_flush(bio_s_out);
1949
1950                 if (dh == NULL)
1951                         SSL_CTX_set_dh_auto(ctx, 1);
1952                 else if (!SSL_CTX_set_tmp_dh(ctx,dh))
1953                         {
1954                         BIO_puts(bio_err, "Error setting temp DH parameters\n");
1955                         ERR_print_errors(bio_err);
1956                         DH_free(dh);
1957                         goto end;
1958                         }
1959 #ifndef OPENSSL_NO_TLSEXT
1960                 if (ctx2)
1961                         {
1962                         if (!dhfile)
1963                                 {
1964                                 DH *dh2=load_dh_param(s_cert_file2);
1965                                 if (dh2 != NULL)
1966                                         {
1967                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1968                                         (void)BIO_flush(bio_s_out);
1969
1970                                         DH_free(dh);
1971                                         dh = dh2;
1972                                         }
1973                                 }
1974                         if (dh == NULL)
1975                                 SSL_CTX_set_dh_auto(ctx2, 1);
1976                         else if (!SSL_CTX_set_tmp_dh(ctx2,dh))
1977                                 {
1978                                 BIO_puts(bio_err, "Error setting temp DH parameters\n");
1979                                 ERR_print_errors(bio_err);
1980                                 DH_free(dh);
1981                                 goto end;
1982                                 }
1983                         }
1984 #endif
1985                 DH_free(dh);
1986                 }
1987 #endif
1988
1989         if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1990                 goto end;
1991 #ifndef OPENSSL_NO_TLSEXT
1992         if (s_serverinfo_file != NULL
1993             && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file))
1994                 {
1995                 ERR_print_errors(bio_err);
1996                 goto end;
1997                 }
1998         if (c_auth)
1999                 {
2000                 SSL_CTX_set_custom_srv_ext(ctx, TLSEXT_TYPE_client_authz, authz_tlsext_cb, authz_tlsext_generate_cb, bio_err);
2001                 SSL_CTX_set_custom_srv_ext(ctx, TLSEXT_TYPE_server_authz, authz_tlsext_cb, authz_tlsext_generate_cb, bio_err);
2002                 SSL_CTX_set_srv_supp_data(ctx, TLSEXT_SUPPLEMENTALDATATYPE_authz_data, auth_suppdata_generate_cb, suppdata_cb, bio_err);
2003                 }
2004 #endif
2005 #ifndef OPENSSL_NO_TLSEXT
2006         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2, NULL, build_chain))
2007                 goto end;
2008 #endif
2009         if (s_dcert != NULL)
2010                 {
2011                 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
2012                         goto end;
2013                 }
2014
2015 #ifndef OPENSSL_NO_RSA
2016 #if 1
2017         if (!no_tmp_rsa)
2018                 {
2019                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
2020 #ifndef OPENSSL_NO_TLSEXT
2021                 if (ctx2)
2022                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
2023 #endif
2024                 }
2025 #else
2026         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
2027                 {
2028                 RSA *rsa;
2029
2030                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
2031                 BIO_flush(bio_s_out);
2032
2033                 rsa=RSA_generate_key(512,RSA_F4,NULL);
2034
2035                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
2036                         {
2037                         ERR_print_errors(bio_err);
2038                         goto end;
2039                         }
2040 #ifndef OPENSSL_NO_TLSEXT
2041                         if (ctx2)
2042                                 {
2043                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
2044                                         {
2045                                         ERR_print_errors(bio_err);
2046                                         goto end;
2047                                         }
2048                                 }
2049 #endif
2050                 RSA_free(rsa);
2051                 BIO_printf(bio_s_out,"\n");
2052                 }
2053 #endif
2054 #endif
2055
2056         if (no_resume_ephemeral)
2057                 {
2058                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
2059 #ifndef OPENSSL_NO_TLSEXT
2060                 if (ctx2)
2061                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
2062 #endif
2063                 }
2064
2065 #ifndef OPENSSL_NO_PSK
2066 #ifdef OPENSSL_NO_JPAKE
2067         if (psk_key != NULL)
2068 #else
2069         if (psk_key != NULL || jpake_secret)
2070 #endif
2071                 {
2072                 if (s_debug)
2073                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
2074                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2075                 }
2076
2077         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
2078                 {
2079                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
2080                 ERR_print_errors(bio_err);
2081                 goto end;
2082                 }
2083 #endif
2084
2085         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
2086         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
2087                 sizeof s_server_session_id_context);
2088
2089         /* Set DTLS cookie generation and verification callbacks */
2090         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2091         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2092
2093 #ifndef OPENSSL_NO_TLSEXT
2094         if (ctx2)
2095                 {
2096                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
2097                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
2098                         sizeof s_server_session_id_context);
2099
2100                 tlsextcbp.biodebug = bio_s_out;
2101                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2102                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2103                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2104                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2105                 }
2106 #endif
2107
2108 #ifndef OPENSSL_NO_SRP
2109         if (srp_verifier_file != NULL)
2110                 {
2111                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
2112                 srp_callback_parm.user = NULL;
2113                 srp_callback_parm.login = NULL;
2114                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
2115                         {
2116                         BIO_printf(bio_err,
2117                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
2118                                    srp_verifier_file, ret);
2119                                 goto end;
2120                         }
2121                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
2122                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
2123                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
2124                 }
2125         else
2126 #endif
2127         if (CAfile != NULL)
2128                 {
2129                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
2130 #ifndef OPENSSL_NO_TLSEXT
2131                 if (ctx2)
2132                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
2133 #endif
2134                 }
2135
2136         BIO_printf(bio_s_out,"ACCEPT\n");
2137         (void)BIO_flush(bio_s_out);
2138         if (rev)
2139                 server_cb = rev_body;
2140         else if (www)
2141                 server_cb = www_body;
2142         else
2143                 server_cb = sv_body;
2144         if (unix_path)
2145                 {
2146                 if (unlink_unix_path)
2147                         unlink(unix_path);
2148                 do_server_unix(unix_path,&accept_socket,server_cb, context, naccept);
2149                 }
2150         else
2151                 do_server(port,socket_type,&accept_socket,server_cb, context, naccept);
2152         print_stats(bio_s_out,ctx);
2153         ret=0;
2154 end:
2155         if (ctx != NULL) SSL_CTX_free(ctx);
2156         if (s_cert)
2157                 X509_free(s_cert);
2158         if (crls)
2159                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2160         if (s_dcert)
2161                 X509_free(s_dcert);
2162         if (s_key)
2163                 EVP_PKEY_free(s_key);
2164         if (s_dkey)
2165                 EVP_PKEY_free(s_dkey);
2166         if (s_chain)
2167                 sk_X509_pop_free(s_chain, X509_free);
2168         if (s_dchain)
2169                 sk_X509_pop_free(s_dchain, X509_free);
2170         if (pass)
2171                 OPENSSL_free(pass);
2172         if (dpass)
2173                 OPENSSL_free(dpass);
2174         if (vpm)
2175                 X509_VERIFY_PARAM_free(vpm);
2176         free_sessions();
2177 #ifndef OPENSSL_NO_TLSEXT
2178         if (tlscstatp.host)
2179                 OPENSSL_free(tlscstatp.host);
2180         if (tlscstatp.port)
2181                 OPENSSL_free(tlscstatp.port);
2182         if (tlscstatp.path)
2183                 OPENSSL_free(tlscstatp.path);
2184         if (ctx2 != NULL) SSL_CTX_free(ctx2);
2185         if (s_cert2)
2186                 X509_free(s_cert2);
2187         if (s_key2)
2188                 EVP_PKEY_free(s_key2);
2189         if (serverinfo_in != NULL)
2190                 BIO_free(serverinfo_in);
2191 # ifndef OPENSSL_NO_NEXTPROTONEG
2192         if (next_proto.data)
2193                 OPENSSL_free(next_proto.data);
2194 # endif
2195         if (alpn_ctx.data)
2196                 OPENSSL_free(alpn_ctx.data);
2197 #endif
2198         ssl_excert_free(exc);
2199         if (ssl_args)
2200                 sk_OPENSSL_STRING_free(ssl_args);
2201         if (cctx)
2202                 SSL_CONF_CTX_free(cctx);
2203 #ifndef OPENSSL_NO_JPAKE
2204         if (jpake_secret && psk_key)
2205                 OPENSSL_free(psk_key);
2206 #endif
2207         if (bio_s_out != NULL)
2208                 {
2209                 BIO_free(bio_s_out);
2210                 bio_s_out=NULL;
2211                 }
2212         if (bio_s_msg != NULL)
2213                 {
2214                 BIO_free(bio_s_msg);
2215                 bio_s_msg = NULL;
2216                 }
2217         apps_shutdown();
2218         OPENSSL_EXIT(ret);
2219         }
2220
2221 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2222         {
2223         BIO_printf(bio,"%4ld items in the session cache\n",
2224                 SSL_CTX_sess_number(ssl_ctx));
2225         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
2226                 SSL_CTX_sess_connect(ssl_ctx));
2227         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
2228                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2229         BIO_printf(bio,"%4ld client connects that finished\n",
2230                 SSL_CTX_sess_connect_good(ssl_ctx));
2231         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
2232                 SSL_CTX_sess_accept(ssl_ctx));
2233         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
2234                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2235         BIO_printf(bio,"%4ld server accepts that finished\n",
2236                 SSL_CTX_sess_accept_good(ssl_ctx));
2237         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
2238         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
2239         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
2240         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
2241         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
2242                 SSL_CTX_sess_cache_full(ssl_ctx),
2243                 SSL_CTX_sess_get_cache_size(ssl_ctx));
2244         }
2245
2246 static int sv_body(char *hostname, int s, int stype, unsigned char *context)
2247         {
2248         char *buf=NULL;
2249         fd_set readfds;
2250         int ret=1,width;
2251         int k,i;
2252         unsigned long l;
2253         SSL *con=NULL;
2254         BIO *sbio;
2255 #ifndef OPENSSL_NO_KRB5
2256         KSSL_CTX *kctx;
2257 #endif
2258         struct timeval timeout;
2259 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2260         struct timeval tv;
2261 #else
2262         struct timeval *timeoutp;
2263 #endif
2264
2265         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
2266                 {
2267                 BIO_printf(bio_err,"out of memory\n");
2268                 goto err;
2269                 }
2270 #ifdef FIONBIO
2271         if (s_nbio)
2272                 {
2273                 unsigned long sl=1;
2274
2275                 if (!s_quiet)
2276                         BIO_printf(bio_err,"turning on non blocking io\n");
2277                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2278                         ERR_print_errors(bio_err);
2279                 }
2280 #endif
2281
2282         if (con == NULL) {
2283                 con=SSL_new(ctx);
2284 #ifndef OPENSSL_NO_TLSEXT
2285         if (s_tlsextdebug)
2286                 {
2287                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2288                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2289                 }
2290         if (s_tlsextstatus)
2291                 {
2292                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2293                 tlscstatp.err = bio_err;
2294                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2295                 }
2296 #endif
2297 #ifndef OPENSSL_NO_KRB5
2298                 if ((kctx = kssl_ctx_new()) != NULL)
2299                         {
2300                         SSL_set0_kssl_ctx(con, kctx);
2301                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2302                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2303                         }
2304 #endif  /* OPENSSL_NO_KRB5 */
2305                 if(context)
2306                       SSL_set_session_id_context(con, context,
2307                                                  strlen((char *)context));
2308         }
2309         SSL_clear(con);
2310 #if 0
2311 #ifdef TLSEXT_TYPE_opaque_prf_input
2312         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2313 #endif
2314 #endif
2315
2316         if (stype == SOCK_DGRAM)
2317                 {
2318
2319                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2320
2321                 if (enable_timeouts)
2322                         {
2323                         timeout.tv_sec = 0;
2324                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2325                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2326
2327                         timeout.tv_sec = 0;
2328                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2329                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2330                         }
2331
2332                 if (socket_mtu > 28)
2333                         {
2334                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2335                         SSL_set_mtu(con, socket_mtu - 28);
2336                         }
2337                 else
2338                         /* want to do MTU discovery */
2339                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2340
2341         /* turn on cookie exchange */
2342         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2343                 }
2344         else
2345                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2346
2347         if (s_nbio_test)
2348                 {
2349                 BIO *test;
2350
2351                 test=BIO_new(BIO_f_nbio_test());
2352                 sbio=BIO_push(test,sbio);
2353                 }
2354 #ifndef OPENSSL_NO_JPAKE
2355         if(jpake_secret)
2356                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2357 #endif
2358
2359         SSL_set_bio(con,sbio,sbio);
2360         SSL_set_accept_state(con);
2361         /* SSL_set_fd(con,s); */
2362
2363         if (s_debug)
2364                 {
2365                 SSL_set_debug(con, 1);
2366                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2367                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2368                 }
2369         if (s_msg)
2370                 {
2371 #ifndef OPENSSL_NO_SSL_TRACE
2372                 if (s_msg == 2)
2373                         SSL_set_msg_callback(con, SSL_trace);
2374                 else
2375 #endif
2376                         SSL_set_msg_callback(con, msg_cb);
2377                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2378                 }
2379 #ifndef OPENSSL_NO_TLSEXT
2380         if (s_tlsextdebug)
2381                 {
2382                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2383                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2384                 }
2385 #endif
2386
2387         width=s+1;
2388         for (;;)
2389                 {
2390                 int read_from_terminal;
2391                 int read_from_sslcon;
2392
2393                 read_from_terminal = 0;
2394                 read_from_sslcon = SSL_pending(con);
2395
2396                 if (!read_from_sslcon)
2397                         {
2398                         FD_ZERO(&readfds);
2399 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2400                         openssl_fdset(fileno(stdin),&readfds);
2401 #endif
2402                         openssl_fdset(s,&readfds);
2403                         /* Note: under VMS with SOCKETSHR the second parameter is
2404                          * currently of type (int *) whereas under other systems
2405                          * it is (void *) if you don't have a cast it will choke
2406                          * the compiler: if you do have a cast then you can either
2407                          * go for (int *) or (void *).
2408                          */
2409 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2410                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2411                          * on sockets. As a workaround we timeout the select every
2412                          * second and check for any keypress. In a proper Windows
2413                          * application we wouldn't do this because it is inefficient.
2414                          */
2415                         tv.tv_sec = 1;
2416                         tv.tv_usec = 0;
2417                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2418                         if((i < 0) || (!i && !_kbhit() ) )continue;
2419                         if(_kbhit())
2420                                 read_from_terminal = 1;
2421 #elif defined(OPENSSL_SYS_BEOS_R5)
2422                         /* Under BeOS-R5 the situation is similar to DOS */
2423                         tv.tv_sec = 1;
2424                         tv.tv_usec = 0;
2425                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2426                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2427                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2428                                 continue;
2429                         if (read(fileno(stdin), buf, 0) >= 0)
2430                                 read_from_terminal = 1;
2431                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2432 #else
2433                         if ((SSL_version(con) == DTLS1_VERSION) &&
2434                                 DTLSv1_get_timeout(con, &timeout))
2435                                 timeoutp = &timeout;
2436                         else
2437                                 timeoutp = NULL;
2438
2439                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2440
2441                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2442                                 {
2443                                 BIO_printf(bio_err,"TIMEOUT occurred\n");
2444                                 }
2445
2446                         if (i <= 0) continue;
2447                         if (FD_ISSET(fileno(stdin),&readfds))
2448                                 read_from_terminal = 1;
2449 #endif
2450                         if (FD_ISSET(s,&readfds))
2451                                 read_from_sslcon = 1;
2452                         }
2453                 if (read_from_terminal)
2454                         {
2455                         if (s_crlf)
2456                                 {
2457                                 int j, lf_num;
2458
2459                                 i=raw_read_stdin(buf, bufsize/2);
2460                                 lf_num = 0;
2461                                 /* both loops are skipped when i <= 0 */
2462                                 for (j = 0; j < i; j++)
2463                                         if (buf[j] == '\n')
2464                                                 lf_num++;
2465                                 for (j = i-1; j >= 0; j--)
2466                                         {
2467                                         buf[j+lf_num] = buf[j];
2468                                         if (buf[j] == '\n')
2469                                                 {
2470                                                 lf_num--;
2471                                                 i++;
2472                                                 buf[j+lf_num] = '\r';
2473                                                 }
2474                                         }
2475                                 assert(lf_num == 0);
2476                                 }
2477                         else
2478                                 i=raw_read_stdin(buf,bufsize);
2479                         if (!s_quiet && !s_brief)
2480                                 {
2481                                 if ((i <= 0) || (buf[0] == 'Q'))
2482                                         {
2483                                         BIO_printf(bio_s_out,"DONE\n");
2484                                         SHUTDOWN(s);
2485                                         close_accept_socket();
2486                                         ret= -11;
2487                                         goto err;
2488                                         }
2489                                 if ((i <= 0) || (buf[0] == 'q'))
2490                                         {
2491                                         BIO_printf(bio_s_out,"DONE\n");
2492                                         if (SSL_version(con) != DTLS1_VERSION)
2493                         SHUTDOWN(s);
2494         /*                              close_accept_socket();
2495                                         ret= -11;*/
2496                                         goto err;
2497                                         }
2498
2499 #ifndef OPENSSL_NO_HEARTBEATS
2500                                 if ((buf[0] == 'B') &&
2501                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2502                                         {
2503                                         BIO_printf(bio_err,"HEARTBEATING\n");
2504                                         SSL_heartbeat(con);
2505                                         i=0;
2506                                         continue;
2507                                         }
2508 #endif
2509                                 if ((buf[0] == 'r') &&
2510                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2511                                         {
2512                                         SSL_renegotiate(con);
2513                                         i=SSL_do_handshake(con);
2514                                         printf("SSL_do_handshake -> %d\n",i);
2515                                         i=0; /*13; */
2516                                         continue;
2517                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2518                                         }
2519                                 if ((buf[0] == 'R') &&
2520                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2521                                         {
2522                                         SSL_set_verify(con,
2523                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2524                                         SSL_renegotiate(con);
2525                                         i=SSL_do_handshake(con);
2526                                         printf("SSL_do_handshake -> %d\n",i);
2527                                         i=0; /* 13; */
2528                                         continue;
2529                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2530                                         }
2531                                 if (buf[0] == 'P')
2532                                         {
2533                                         static const char *str="Lets print some clear text\n";
2534                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2535                                         }
2536                                 if (buf[0] == 'S')
2537                                         {
2538                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2539                                         }
2540                                 }
2541 #ifdef CHARSET_EBCDIC
2542                         ebcdic2ascii(buf,buf,i);
2543 #endif
2544                         l=k=0;
2545                         for (;;)
2546                                 {
2547                                 /* should do a select for the write */
2548 #ifdef RENEG
2549 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2550 #endif
2551                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2552 #ifndef OPENSSL_NO_SRP
2553                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2554                                         {
2555                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2556                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2557                                         if (srp_callback_parm.user)
2558                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2559                                         else
2560                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2561                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2562                                         }
2563 #endif
2564                                 switch (SSL_get_error(con,k))
2565                                         {
2566                                 case SSL_ERROR_NONE:
2567                                         break;
2568                                 case SSL_ERROR_WANT_WRITE:
2569                                 case SSL_ERROR_WANT_READ:
2570                                 case SSL_ERROR_WANT_X509_LOOKUP:
2571                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2572                                         break;
2573                                 case SSL_ERROR_SYSCALL:
2574                                 case SSL_ERROR_SSL:
2575                                         BIO_printf(bio_s_out,"ERROR\n");
2576                                         ERR_print_errors(bio_err);
2577                                         ret=1;
2578                                         goto err;
2579                                         /* break; */
2580                                 case SSL_ERROR_ZERO_RETURN:
2581                                         BIO_printf(bio_s_out,"DONE\n");
2582                                         ret=1;
2583                                         goto err;
2584                                         }
2585                                 l+=k;
2586                                 i-=k;
2587                                 if (i <= 0) break;
2588                                 }
2589                         }
2590                 if (read_from_sslcon)
2591                         {
2592                         if (!SSL_is_init_finished(con))
2593                                 {
2594                                 i=init_ssl_connection(con);
2595
2596                                 if (i < 0)
2597                                         {
2598                                         ret=0;
2599                                         goto err;
2600                                         }
2601                                 else if (i == 0)
2602                                         {
2603                                         ret=1;
2604                                         goto err;
2605                                         }
2606                                 }
2607                         else
2608                                 {
2609 again:
2610                                 i=SSL_read(con,(char *)buf,bufsize);
2611 #ifndef OPENSSL_NO_SRP
2612                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2613                                         {
2614                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2615                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2616                                         if (srp_callback_parm.user)
2617                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2618                                         else
2619                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2620                                         i=SSL_read(con,(char *)buf,bufsize);
2621                                         }
2622 #endif
2623                                 switch (SSL_get_error(con,i))
2624                                         {
2625                                 case SSL_ERROR_NONE:
2626 #ifdef CHARSET_EBCDIC
2627                                         ascii2ebcdic(buf,buf,i);
2628 #endif
2629                                         raw_write_stdout(buf,
2630                                                 (unsigned int)i);
2631                                         if (SSL_pending(con)) goto again;
2632                                         break;
2633                                 case SSL_ERROR_WANT_WRITE:
2634                                 case SSL_ERROR_WANT_READ:
2635                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2636                                         break;
2637                                 case SSL_ERROR_SYSCALL:
2638                                 case SSL_ERROR_SSL:
2639                                         BIO_printf(bio_s_out,"ERROR\n");
2640                                         ERR_print_errors(bio_err);
2641                                         ret=1;
2642                                         goto err;
2643                                 case SSL_ERROR_ZERO_RETURN:
2644                                         BIO_printf(bio_s_out,"DONE\n");
2645                                         ret=1;
2646                                         goto err;
2647                                         }
2648                                 }
2649                         }
2650                 }
2651 err:
2652         if (con != NULL)
2653                 {
2654                 BIO_printf(bio_s_out,"shutting down SSL\n");
2655 #if 1
2656                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2657 #else
2658                 SSL_shutdown(con);
2659 #endif
2660                 SSL_free(con);
2661                 }
2662         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2663         if (buf != NULL)
2664                 {
2665                 OPENSSL_cleanse(buf,bufsize);
2666                 OPENSSL_free(buf);
2667                 }
2668         if (ret >= 0)
2669                 BIO_printf(bio_s_out,"ACCEPT\n");
2670         return(ret);
2671         }
2672
2673 static void close_accept_socket(void)
2674         {
2675         BIO_printf(bio_err,"shutdown accept socket\n");
2676         if (accept_socket >= 0)
2677                 {
2678                 SHUTDOWN2(accept_socket);
2679                 }
2680         }
2681
2682 static int init_ssl_connection(SSL *con)
2683         {
2684         int i;
2685         const char *str;
2686         X509 *peer;
2687         long verify_error;
2688         MS_STATIC char buf[BUFSIZ];
2689 #ifndef OPENSSL_NO_KRB5
2690         char *client_princ;
2691 #endif
2692 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2693         const unsigned char *next_proto_neg;
2694         unsigned next_proto_neg_len;
2695 #endif
2696         unsigned char *exportedkeymat;
2697
2698
2699         i=SSL_accept(con);
2700 #ifdef CERT_CB_TEST_RETRY
2701         {
2702         while (i <= 0 && SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP && SSL_state(con) == SSL3_ST_SR_CLNT_HELLO_C)
2703                 {
2704                 fprintf(stderr, "LOOKUP from certificate callback during accept\n");
2705                 i=SSL_accept(con);
2706                 }
2707         }
2708 #endif
2709 #ifndef OPENSSL_NO_SRP
2710         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2711                 {
2712                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2713                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2714                         if (srp_callback_parm.user)
2715                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2716                         else
2717                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2718                         i=SSL_accept(con);
2719                 }
2720 #endif
2721         /*handshake is complete - free the generated supp data allocated in the callback */
2722         if (generated_supp_data)
2723                 {
2724         OPENSSL_free(generated_supp_data);
2725                 generated_supp_data = NULL;
2726                 }
2727
2728         if (i <= 0)
2729                 {
2730                 if (BIO_sock_should_retry(i))
2731                         {
2732                         BIO_printf(bio_s_out,"DELAY\n");
2733                         return(1);
2734                         }
2735
2736                 BIO_printf(bio_err,"ERROR\n");
2737                 verify_error=SSL_get_verify_result(con);
2738                 if (verify_error != X509_V_OK)
2739                         {
2740                         BIO_printf(bio_err,"verify error:%s\n",
2741                                 X509_verify_cert_error_string(verify_error));
2742                         }
2743                 /* Always print any error messages */
2744                 ERR_print_errors(bio_err);
2745                 return(0);
2746                 }
2747
2748         if (s_brief)
2749                 print_ssl_summary(bio_err, con);
2750
2751         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2752
2753         peer=SSL_get_peer_certificate(con);
2754         if (peer != NULL)
2755                 {
2756                 BIO_printf(bio_s_out,"Client certificate\n");
2757                 PEM_write_bio_X509(bio_s_out,peer);
2758                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2759                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2760                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2761                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2762                 X509_free(peer);
2763                 }
2764
2765         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2766                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2767         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2768         ssl_print_sigalgs(bio_s_out, con);
2769 #ifndef OPENSSL_NO_EC
2770         ssl_print_point_formats(bio_s_out, con);
2771         ssl_print_curves(bio_s_out, con, 0);
2772 #endif
2773         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2774
2775 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2776         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2777         if (next_proto_neg)
2778                 {
2779                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2780                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2781                 BIO_printf(bio_s_out, "\n");
2782                 }
2783 #endif
2784         {
2785         SRTP_PROTECTION_PROFILE *srtp_profile
2786           = SSL_get_selected_srtp_profile(con);
2787
2788         if(srtp_profile)
2789                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2790                            srtp_profile->name);
2791         }
2792         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2793         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2794                 TLS1_FLAGS_TLS_PADDING_BUG)
2795                 BIO_printf(bio_s_out,
2796                            "Peer has incorrect TLSv1 block padding\n");
2797 #ifndef OPENSSL_NO_KRB5
2798         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2799         if (client_princ != NULL)
2800                 {
2801                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2802                                                                 client_princ);
2803                 }
2804 #endif /* OPENSSL_NO_KRB5 */
2805         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2806                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2807         if (keymatexportlabel != NULL)
2808                 {
2809                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2810                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2811                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2812                            keymatexportlen);
2813                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2814                 if (exportedkeymat != NULL)
2815                         {
2816                         if (!SSL_export_keying_material(con, exportedkeymat,
2817                                                         keymatexportlen,
2818                                                         keymatexportlabel,
2819                                                         strlen(keymatexportlabel),
2820                                                         NULL, 0, 0))
2821                                 {
2822                                 BIO_printf(bio_s_out, "    Error\n");
2823                                 }
2824                         else
2825                                 {
2826                                 BIO_printf(bio_s_out, "    Keying material: ");
2827                                 for (i=0; i<keymatexportlen; i++)
2828                                         BIO_printf(bio_s_out, "%02X",
2829                                                    exportedkeymat[i]);
2830                                 BIO_printf(bio_s_out, "\n");
2831                                 }
2832                         OPENSSL_free(exportedkeymat);
2833                         }
2834                 }
2835
2836         return(1);
2837         }
2838
2839 #ifndef OPENSSL_NO_DH
2840 static DH *load_dh_param(const char *dhfile)
2841         {
2842         DH *ret=NULL;
2843         BIO *bio;
2844
2845         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2846                 goto err;
2847         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2848 err:
2849         if (bio != NULL) BIO_free(bio);
2850         return(ret);
2851         }
2852 #endif
2853
2854 #if 0
2855 static int load_CA(SSL_CTX *ctx, char *file)
2856         {
2857         FILE *in;
2858         X509 *x=NULL;
2859
2860         if ((in=fopen(file,"r")) == NULL)
2861                 return(0);
2862
2863         for (;;)
2864                 {
2865                 if (PEM_read_X509(in,&x,NULL) == NULL)
2866                         break;
2867                 SSL_CTX_add_client_CA(ctx,x);
2868                 }
2869         if (x != NULL) X509_free(x);
2870         fclose(in);
2871         return(1);
2872         }
2873 #endif
2874
2875 static int www_body(char *hostname, int s, int stype, unsigned char *context)
2876         {
2877         char *buf=NULL;
2878         int ret=1;
2879         int i,j,k,dot;
2880         SSL *con;
2881         const SSL_CIPHER *c;
2882         BIO *io,*ssl_bio,*sbio;
2883 #ifndef OPENSSL_NO_KRB5
2884         KSSL_CTX *kctx;
2885 #endif
2886
2887         buf=OPENSSL_malloc(bufsize);
2888         if (buf == NULL) return(0);
2889         io=BIO_new(BIO_f_buffer());
2890         ssl_bio=BIO_new(BIO_f_ssl());
2891         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2892
2893 #ifdef FIONBIO
2894         if (s_nbio)
2895                 {
2896                 unsigned long sl=1;
2897
2898                 if (!s_quiet)
2899                         BIO_printf(bio_err,"turning on non blocking io\n");
2900                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2901                         ERR_print_errors(bio_err);
2902                 }
2903 #endif
2904
2905         /* lets make the output buffer a reasonable size */
2906         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2907
2908         if ((con=SSL_new(ctx)) == NULL) goto err;
2909 #ifndef OPENSSL_NO_TLSEXT
2910                 if (s_tlsextdebug)
2911                         {
2912                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2913                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2914                         }
2915 #endif
2916 #ifndef OPENSSL_NO_KRB5
2917         if ((kctx = kssl_ctx_new()) != NULL)
2918                 {
2919                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2920                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2921                 }
2922 #endif  /* OPENSSL_NO_KRB5 */
2923         if(context) SSL_set_session_id_context(con, context,
2924                                                strlen((char *)context));
2925
2926         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2927         if (s_nbio_test)
2928                 {
2929                 BIO *test;
2930
2931                 test=BIO_new(BIO_f_nbio_test());
2932                 sbio=BIO_push(test,sbio);
2933                 }
2934         SSL_set_bio(con,sbio,sbio);
2935         SSL_set_accept_state(con);
2936
2937         /* SSL_set_fd(con,s); */
2938         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2939         BIO_push(io,ssl_bio);
2940 #ifdef CHARSET_EBCDIC
2941         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2942 #endif
2943
2944         if (s_debug)
2945                 {
2946                 SSL_set_debug(con, 1);
2947                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2948                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2949                 }
2950         if (s_msg)
2951                 {
2952 #ifndef OPENSSL_NO_SSL_TRACE
2953                 if (s_msg == 2)
2954                         SSL_set_msg_callback(con, SSL_trace);
2955                 else
2956 #endif
2957                         SSL_set_msg_callback(con, msg_cb);
2958                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2959                 }
2960
2961         for (;;)
2962                 {
2963                 if (hack)
2964                         {
2965                         i=SSL_accept(con);
2966 #ifndef OPENSSL_NO_SRP
2967                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2968                 {
2969                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2970                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2971                         if (srp_callback_parm.user)
2972                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2973                         else
2974                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2975                         i=SSL_accept(con);
2976                 }
2977 #endif
2978                         switch (SSL_get_error(con,i))
2979                                 {
2980                         case SSL_ERROR_NONE:
2981                                 break;
2982                         case SSL_ERROR_WANT_WRITE:
2983                         case SSL_ERROR_WANT_READ:
2984                         case SSL_ERROR_WANT_X509_LOOKUP:
2985                                 continue;
2986                         case SSL_ERROR_SYSCALL:
2987                         case SSL_ERROR_SSL:
2988                         case SSL_ERROR_ZERO_RETURN:
2989                                 ret=1;
2990                                 goto err;
2991                                 /* break; */
2992                                 }
2993
2994                         SSL_renegotiate(con);
2995                         SSL_write(con,NULL,0);
2996                         }
2997
2998                 i=BIO_gets(io,buf,bufsize-1);
2999                 if (i < 0) /* error */
3000                         {
3001                         if (!BIO_should_retry(io))
3002                                 {
3003                                 if (!s_quiet)
3004                                         ERR_print_errors(bio_err);
3005                                 goto err;
3006                                 }
3007                         else
3008                                 {
3009                                 BIO_printf(bio_s_out,"read R BLOCK\n");
3010 #if defined(OPENSSL_SYS_NETWARE)
3011             delay(1000);
3012 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
3013                                 sleep(1);
3014 #endif
3015                                 continue;
3016                                 }
3017                         }
3018                 else if (i == 0) /* end of input */
3019                         {
3020                         ret=1;
3021                         goto end;
3022                         }
3023
3024                 /* else we have data */
3025                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
3026                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
3027                         {
3028                         char *p;
3029                         X509 *peer;
3030                         STACK_OF(SSL_CIPHER) *sk;
3031                         static const char *space="                          ";
3032
3033                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
3034                         {
3035                         if (strncmp("GET /renegcert", buf, 14) == 0)
3036                                 SSL_set_verify(con,
3037                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
3038                         i=SSL_renegotiate(con);
3039                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
3040                         i=SSL_do_handshake(con);
3041                         if (i <= 0)
3042                                 {
3043                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
3044                                 ERR_print_errors(bio_err);
3045                                 goto err;
3046                                 }
3047                         /* EVIL HACK! */
3048                         SSL_set_state(con, SSL_ST_ACCEPT);
3049                         i=SSL_do_handshake(con);
3050                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
3051                         if (i <= 0)
3052                                 {
3053                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
3054                                 ERR_print_errors(bio_err);
3055                                 goto err;
3056                                 }
3057                         }
3058
3059                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3060                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
3061                         BIO_puts(io,"<pre>\n");
3062 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
3063                         BIO_puts(io,"\n");
3064                         for (i=0; i<local_argc; i++)
3065                                 {
3066                                 BIO_puts(io,local_argv[i]);
3067                                 BIO_write(io," ",1);
3068                                 }
3069                         BIO_puts(io,"\n");
3070
3071                         BIO_printf(io,
3072                                 "Secure Renegotiation IS%s supported\n",
3073                                 SSL_get_secure_renegotiation_support(con) ?
3074                                                         "" : " NOT");
3075
3076                         /* The following is evil and should not really
3077                          * be done */
3078                         BIO_printf(io,"Ciphers supported in s_server binary\n");
3079                         sk=SSL_get_ciphers(con);
3080                         j=sk_SSL_CIPHER_num(sk);
3081                         for (i=0; i<j; i++)
3082                                 {
3083                                 c=sk_SSL_CIPHER_value(sk,i);
3084                                 BIO_printf(io,"%-11s:%-25s",
3085                                         SSL_CIPHER_get_version(c),
3086                                         SSL_CIPHER_get_name(c));
3087                                 if ((((i+1)%2) == 0) && (i+1 != j))
3088                                         BIO_puts(io,"\n");
3089                                 }
3090                         BIO_puts(io,"\n");
3091                         p=SSL_get_shared_ciphers(con,buf,bufsize);
3092                         if (p != NULL)
3093                                 {
3094                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
3095                                 j=i=0;
3096                                 while (*p)
3097                                         {
3098                                         if (*p == ':')
3099                                                 {
3100                                                 BIO_write(io,space,26-j);
3101                                                 i++;
3102                                                 j=0;
3103                                                 BIO_write(io,((i%3)?" ":"\n"),1);
3104                                                 }
3105                                         else
3106                                                 {
3107                                                 BIO_write(io,p,1);
3108                                                 j++;
3109                                                 }
3110                                         p++;
3111                                         }
3112                                 BIO_puts(io,"\n");
3113                                 }
3114                         ssl_print_sigalgs(io, con);
3115 #ifndef OPENSSL_NO_EC
3116                         ssl_print_curves(io, con, 0);
3117 #endif
3118                         BIO_printf(io,(SSL_cache_hit(con)
3119                                 ?"---\nReused, "
3120                                 :"---\nNew, "));
3121                         c=SSL_get_current_cipher(con);
3122                         BIO_printf(io,"%s, Cipher is %s\n",
3123                                 SSL_CIPHER_get_version(c),
3124                                 SSL_CIPHER_get_name(c));
3125                         SSL_SESSION_print(io,SSL_get_session(con));
3126                         BIO_printf(io,"---\n");
3127                         print_stats(io,SSL_get_SSL_CTX(con));
3128                         BIO_printf(io,"---\n");
3129                         peer=SSL_get_peer_certificate(con);
3130                         if (peer != NULL)
3131                                 {
3132                                 BIO_printf(io,"Client certificate\n");
3133                                 X509_print(io,peer);
3134                                 PEM_write_bio_X509(io,peer);
3135                                 }
3136                         else
3137                                 BIO_puts(io,"no client certificate available\n");
3138                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
3139                         break;
3140                         }
3141                 else if ((www == 2 || www == 3)
3142                          && (strncmp("GET /",buf,5) == 0))
3143                         {
3144                         BIO *file;
3145                         char *p,*e;
3146                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3147
3148                         /* skip the '/' */
3149                         p= &(buf[5]);
3150
3151                         dot = 1;
3152                         for (e=p; *e != '\0'; e++)
3153                                 {
3154                                 if (e[0] == ' ')
3155                                         break;
3156
3157                                 switch (dot)
3158                                         {
3159                                 case 1:
3160                                         dot = (e[0] == '.') ? 2 : 0;
3161                                         break;
3162                                 case 2:
3163                                         dot = (e[0] == '.') ? 3 : 0;
3164                                         break;
3165                                 case 3:
3166                                         dot = (e[0] == '/') ? -1 : 0;
3167                                         break;
3168                                         }
3169                                 if (dot == 0)
3170                                         dot = (e[0] == '/') ? 1 : 0;
3171                                 }
3172                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
3173
3174                         if (*e == '\0')
3175                                 {
3176                                 BIO_puts(io,text);
3177                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
3178                                 break;
3179                                 }
3180                         *e='\0';
3181
3182                         if (dot)
3183                                 {
3184                                 BIO_puts(io,text);
3185                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
3186                                 break;
3187                                 }
3188
3189                         if (*p == '/')
3190                                 {
3191                                 BIO_puts(io,text);
3192                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
3193                                 break;
3194                                 }
3195
3196 #if 0
3197                         /* append if a directory lookup */
3198                         if (e[-1] == '/')
3199                                 strcat(p,"index.html");
3200 #endif
3201
3202                         /* if a directory, do the index thang */
3203                         if (app_isdir(p)>0)
3204                                 {
3205 #if 0 /* must check buffer size */
3206                                 strcat(p,"/index.html");
3207 #else
3208                                 BIO_puts(io,text);
3209                                 BIO_printf(io,"'%s' is a directory\r\n",p);
3210                                 break;
3211 #endif
3212                                 }
3213
3214                         if ((file=BIO_new_file(p,"r")) == NULL)
3215                                 {
3216                                 BIO_puts(io,text);
3217                                 BIO_printf(io,"Error opening '%s'\r\n",p);
3218                                 ERR_print_errors(io);
3219                                 break;
3220                                 }
3221
3222                         if (!s_quiet)
3223                                 BIO_printf(bio_err,"FILE:%s\n",p);
3224
3225                         if (www == 2)
3226                                 {
3227                                 i=strlen(p);
3228                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
3229                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
3230                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
3231                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3232                                 else
3233                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3234                                 }
3235                         /* send the file */
3236                         for (;;)
3237                                 {
3238                                 i=BIO_read(file,buf,bufsize);
3239                                 if (i <= 0) break;
3240
3241 #ifdef RENEG
3242                                 total_bytes+=i;
3243                                 fprintf(stderr,"%d\n",i);
3244                                 if (total_bytes > 3*1024)
3245                                         {
3246                                         total_bytes=0;
3247                                         fprintf(stderr,"RENEGOTIATE\n");
3248                                         SSL_renegotiate(con);
3249                                         }
3250 #endif
3251
3252                                 for (j=0; j<i; )
3253                                         {
3254 #ifdef RENEG
3255 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
3256 #endif
3257                                         k=BIO_write(io,&(buf[j]),i-j);
3258                                         if (k <= 0)
3259                                                 {
3260                                                 if (!BIO_should_retry(io))
3261                                                         goto write_error;
3262                                                 else
3263                                                         {
3264                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
3265                                                         }
3266                                                 }
3267                                         else
3268                                                 {
3269                                                 j+=k;
3270                                                 }
3271                                         }
3272                                 }
3273 write_error:
3274                         BIO_free(file);
3275                         break;
3276                         }
3277                 }
3278
3279         for (;;)
3280                 {
3281                 i=(int)BIO_flush(io);
3282                 if (i <= 0)
3283                         {
3284                         if (!BIO_should_retry(io))
3285                                 break;
3286                         }
3287                 else
3288                         break;
3289                 }
3290 end:
3291 #if 1
3292         /* make sure we re-use sessions */
3293         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3294 #else
3295         /* This kills performance */
3296 /*      SSL_shutdown(con); A shutdown gets sent in the
3297  *      BIO_free_all(io) procession */
3298 #endif
3299
3300 err:
3301
3302         if (ret >= 0)
3303                 BIO_printf(bio_s_out,"ACCEPT\n");
3304
3305         if (buf != NULL) OPENSSL_free(buf);
3306         if (io != NULL) BIO_free_all(io);
3307 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3308         return(ret);
3309         }
3310
3311 static int rev_body(char *hostname, int s, int stype, unsigned char *context)
3312         {
3313         char *buf=NULL;
3314         int i;
3315         int ret=1;
3316         SSL *con;
3317         BIO *io,*ssl_bio,*sbio;
3318 #ifndef OPENSSL_NO_KRB5
3319         KSSL_CTX *kctx;
3320 #endif
3321
3322         buf=OPENSSL_malloc(bufsize);
3323         if (buf == NULL) return(0);
3324         io=BIO_new(BIO_f_buffer());
3325         ssl_bio=BIO_new(BIO_f_ssl());
3326         if ((io == NULL) || (ssl_bio == NULL)) goto err;
3327
3328         /* lets make the output buffer a reasonable size */
3329         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
3330
3331         if ((con=SSL_new(ctx)) == NULL) goto err;
3332 #ifndef OPENSSL_NO_TLSEXT
3333         if (s_tlsextdebug)
3334                 {
3335                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3336                 SSL_set_tlsext_debug_arg(con, bio_s_out);
3337                 }
3338 #endif
3339 #ifndef OPENSSL_NO_KRB5
3340         if ((kctx = kssl_ctx_new()) != NULL)
3341                 {
3342                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
3343                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
3344                 }
3345 #endif  /* OPENSSL_NO_KRB5 */
3346         if(context) SSL_set_session_id_context(con, context,
3347                                                strlen((char *)context));
3348
3349         sbio=BIO_new_socket(s,BIO_NOCLOSE);
3350         SSL_set_bio(con,sbio,sbio);
3351         SSL_set_accept_state(con);
3352
3353         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
3354         BIO_push(io,ssl_bio);
3355 #ifdef CHARSET_EBCDIC
3356         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
3357 #endif
3358
3359         if (s_debug)
3360                 {
3361                 SSL_set_debug(con, 1);
3362                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
3363                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
3364                 }
3365         if (s_msg)
3366                 {
3367 #ifndef OPENSSL_NO_SSL_TRACE
3368                 if (s_msg == 2)
3369                         SSL_set_msg_callback(con, SSL_trace);
3370                 else
3371 #endif
3372                         SSL_set_msg_callback(con, msg_cb);
3373                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3374                 }
3375
3376         for (;;)
3377                 {
3378                 i = BIO_do_handshake(io);
3379                 if (i > 0)
3380                         break;
3381                 if (!BIO_should_retry(io))
3382                         {
3383                         BIO_puts(bio_err, "CONNECTION FAILURE\n");
3384                         ERR_print_errors(bio_err);
3385                         goto end;
3386                         }
3387                 }
3388         BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3389         print_ssl_summary(bio_err, con);
3390
3391         for (;;)
3392                 {
3393                 i=BIO_gets(io,buf,bufsize-1);
3394                 if (i < 0) /* error */
3395                         {
3396                         if (!BIO_should_retry(io))
3397                                 {
3398                                 if (!s_quiet)
3399                                         ERR_print_errors(bio_err);
3400                                 goto err;
3401                                 }
3402                         else
3403                                 {
3404                                 BIO_printf(bio_s_out,"read R BLOCK\n");
3405 #if defined(OPENSSL_SYS_NETWARE)
3406             delay(1000);
3407 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
3408                                 sleep(1);
3409 #endif
3410                                 continue;
3411                                 }
3412                         }
3413                 else if (i == 0) /* end of input */
3414                         {
3415                         ret=1;
3416                         BIO_printf(bio_err, "CONNECTION CLOSED\n");
3417                         goto end;
3418                         }
3419                 else
3420                         {
3421                         char *p = buf + i - 1;
3422                         while(i && (*p == '\n' || *p == '\r'))
3423                                 {
3424                                 p--;
3425                                 i--;
3426                                 }
3427                         if (!s_ign_eof && i == 5 && !strncmp(buf, "CLOSE", 5))
3428                                 {
3429                                 ret = 1;
3430                                 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3431                                 goto end;
3432                                 }
3433                         BUF_reverse((unsigned char *)buf, NULL, i);
3434                         buf[i] = '\n';
3435                         BIO_write(io, buf, i + 1);
3436                         for (;;)
3437                                 {
3438                                 i = BIO_flush(io);
3439                                 if (i > 0)
3440                                         break;
3441                                 if (!BIO_should_retry(io))
3442                                         goto end;
3443                                 }
3444                         }
3445                 }
3446 end:
3447         /* make sure we re-use sessions */
3448         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3449
3450 err:
3451
3452         if (buf != NULL) OPENSSL_free(buf);
3453         if (io != NULL) BIO_free_all(io);
3454         return(ret);
3455         }
3456
3457 #ifndef OPENSSL_NO_RSA
3458 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3459         {
3460         BIGNUM *bn = NULL;
3461         static RSA *rsa_tmp=NULL;
3462
3463         if (!rsa_tmp && ((bn = BN_new()) == NULL))
3464                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
3465         if (!rsa_tmp && bn)
3466                 {
3467                 if (!s_quiet)
3468                         {
3469                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
3470                         (void)BIO_flush(bio_err);
3471                         }
3472                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3473                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
3474                         {
3475                         if(rsa_tmp) RSA_free(rsa_tmp);
3476                         rsa_tmp = NULL;
3477                         }
3478                 if (!s_quiet)
3479                         {
3480                         BIO_printf(bio_err,"\n");
3481                         (void)BIO_flush(bio_err);
3482                         }
3483                 BN_free(bn);
3484                 }
3485         return(rsa_tmp);
3486         }
3487 #endif
3488
3489 #define MAX_SESSION_ID_ATTEMPTS 10
3490 static int generate_session_id(const SSL *ssl, unsigned char *id,
3491                                 unsigned int *id_len)
3492         {
3493         unsigned int count = 0;
3494         do      {
3495                 RAND_pseudo_bytes(id, *id_len);
3496                 /* Prefix the session_id with the required prefix. NB: If our
3497                  * prefix is too long, clip it - but there will be worse effects
3498                  * anyway, eg. the server could only possibly create 1 session
3499                  * ID (ie. the prefix!) so all future session negotiations will
3500                  * fail due to conflicts. */
3501                 memcpy(id, session_id_prefix,
3502                         (strlen(session_id_prefix) < *id_len) ?
3503                         strlen(session_id_prefix) : *id_len);
3504                 }
3505         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3506                 (++count < MAX_SESSION_ID_ATTEMPTS));
3507         if(count >= MAX_SESSION_ID_ATTEMPTS)
3508                 return 0;
3509         return 1;
3510         }
3511
3512 /* By default s_server uses an in-memory cache which caches SSL_SESSION
3513  * structures without any serialisation. This hides some bugs which only
3514  * become apparent in deployed servers. By implementing a basic external
3515  * session cache some issues can be debugged using s_server.
3516  */
3517
3518 typedef struct simple_ssl_session_st
3519         {
3520         unsigned char *id;
3521         unsigned int idlen;
3522         unsigned char *der;
3523         int derlen;
3524         struct simple_ssl_session_st *next;
3525         } simple_ssl_session;
3526
3527 static simple_ssl_session *first = NULL;
3528
3529 static int add_session(SSL *ssl, SSL_SESSION *session)
3530         {
3531         simple_ssl_session *sess;
3532         unsigned char *p;
3533
3534         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3535
3536         SSL_SESSION_get_id(session, &sess->idlen);
3537         sess->derlen = i2d_SSL_SESSION(session, NULL);
3538
3539         sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3540
3541         sess->der = OPENSSL_malloc(sess->derlen);
3542         p = sess->der;
3543         i2d_SSL_SESSION(session, &p);
3544
3545         sess->next = first;
3546         first = sess;
3547         BIO_printf(bio_err, "New session added to external cache\n");
3548         return 0;
3549         }
3550
3551 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3552                                         int *do_copy)
3553         {
3554         simple_ssl_session *sess;
3555         *do_copy = 0;
3556         for (sess = first; sess; sess = sess->next)
3557                 {
3558                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3559                         {
3560                         const unsigned char *p = sess->der;
3561                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3562                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3563                         }
3564                 }
3565         BIO_printf(bio_err, "Lookup session: cache miss\n");
3566         return NULL;
3567         }
3568
3569 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3570         {
3571         simple_ssl_session *sess, *prev = NULL;
3572         const unsigned char *id;
3573         unsigned int idlen;
3574         id = SSL_SESSION_get_id(session, &idlen);
3575         for (sess = first; sess; sess = sess->next)
3576                 {
3577                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
3578                         {
3579                         if(prev)
3580                                 prev->next = sess->next;
3581                         else
3582                                 first = sess->next;
3583                         OPENSSL_free(sess->id);
3584                         OPENSSL_free(sess->der);
3585                         OPENSSL_free(sess);
3586                         return;
3587                         }
3588                 prev = sess;
3589                 }
3590         }
3591
3592 static void init_session_cache_ctx(SSL_CTX *sctx)
3593         {
3594         SSL_CTX_set_session_cache_mode(sctx,
3595                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
3596         SSL_CTX_sess_set_new_cb(sctx, add_session);
3597         SSL_CTX_sess_set_get_cb(sctx, get_session);
3598         SSL_CTX_sess_set_remove_cb(sctx, del_session);
3599         }
3600
3601 static void free_sessions(void)
3602         {
3603         simple_ssl_session *sess, *tsess;
3604         for (sess = first; sess;)
3605                 {
3606                 OPENSSL_free(sess->id);
3607                 OPENSSL_free(sess->der);
3608                 tsess = sess;
3609                 sess = sess->next;
3610                 OPENSSL_free(tsess);
3611                 }
3612         first = NULL;
3613         }
3614
3615 #ifndef OPENSSL_NO_TLSEXT
3616 static int authz_tlsext_cb(SSL *s, unsigned short ext_type,
3617                            const unsigned char *in,
3618                            unsigned short inlen, int *al,
3619                            void *arg)
3620         {
3621         if (TLSEXT_TYPE_server_authz == ext_type)
3622                 client_provided_server_authz
3623                   = memchr(in,  TLSEXT_AUTHZDATAFORMAT_dtcp, inlen) != NULL;
3624
3625         if (TLSEXT_TYPE_client_authz == ext_type)
3626                 client_provided_client_authz
3627                   = memchr(in, TLSEXT_AUTHZDATAFORMAT_dtcp, inlen) != NULL;
3628
3629         return 1;
3630         }
3631
3632 static int authz_tlsext_generate_cb(SSL *s, unsigned short ext_type,
3633                                     const unsigned char **out, unsigned short *outlen,
3634                                     int *al, void *arg)
3635         {
3636         if (c_auth && client_provided_client_authz && client_provided_server_authz)
3637                 {
3638                 /*if auth_require_reneg flag is set, only send extensions if
3639                   renegotiation has occurred */
3640                 if (!c_auth_require_reneg
3641                     || (c_auth_require_reneg && SSL_num_renegotiations(s)))
3642                         {
3643                         *out = auth_ext_data;
3644                         *outlen = 1;
3645                         return 1;
3646                         }
3647                 }
3648         /* no auth extension to send */
3649         return -1;
3650         }
3651
3652 static int suppdata_cb(SSL *s, unsigned short supp_data_type,
3653                        const unsigned char *in,
3654                        unsigned short inlen, int *al,
3655                        void *arg)
3656         {
3657         if (supp_data_type == TLSEXT_SUPPLEMENTALDATATYPE_authz_data)
3658                 {
3659                 most_recent_supplemental_data = in;
3660                 most_recent_supplemental_data_length = inlen;
3661                 }
3662         return 1;
3663         }
3664
3665 static int auth_suppdata_generate_cb(SSL *s, unsigned short supp_data_type,
3666                                      const unsigned char **out,
3667                                      unsigned short *outlen, int *al, void *arg)
3668         {
3669         if (c_auth && client_provided_client_authz && client_provided_server_authz)
3670                 {
3671                 /*if auth_require_reneg flag is set, only send supplemental data if
3672                   renegotiation has occurred */
3673                 if (!c_auth_require_reneg
3674                     || (c_auth_require_reneg && SSL_num_renegotiations(s)))
3675                         {
3676                         generated_supp_data = OPENSSL_malloc(10);
3677                         memcpy(generated_supp_data, "1234512345", 10);
3678                         *out = generated_supp_data;
3679                         *outlen = 10;
3680                         return 1;
3681                         }
3682                 }
3683         /* no supplemental data to send */
3684         return -1;
3685         }
3686 #endif
3687