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 sv_body(char *hostname, int s, int stype, unsigned char *context);
 208 static int www_body(char *hostname, int s, int stype, unsigned char *context);
 209 static int rev_body(char *hostname, int s, int stype, unsigned char *context);
 210 static void close_accept_socket(void );
 211 static void sv_usage(void);
 212 static int init_ssl_connection(SSL *s);
 213 static void print_stats(BIO *bp,SSL_CTX *ctx);
 214 static int generate_session_id(const SSL *ssl, unsigned char *id,
 215                                 unsigned int *id_len);
 216 static void init_session_cache_ctx(SSL_CTX *sctx);
 217 static void free_sessions(void);
 218 #ifndef OPENSSL_NO_DH
 219 static DH *load_dh_param(const char *dhfile);
 220 static DH *get_dh512(void);
 221 #endif
 222
 223 #ifdef MONOLITH
 224 static void s_server_init(void);
 225 #endif
 226
 227 #ifndef OPENSSL_NO_DH
 228 static unsigned char dh512_p[]={
 229         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 230         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 231         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 232         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 233         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 234         0x47,0x74,0xE8,0x33,
 235         };
 236 static unsigned char dh512_g[]={
 237         0x02,
 238         };
 239
 240 static DH *get_dh512(void)
 241         {
 242         DH *dh=NULL;
 243
 244         if ((dh=DH_new()) == NULL) return(NULL);
 245         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 246         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 247         if ((dh->p == NULL) || (dh->g == NULL))
 248                 return(NULL);
 249         return(dh);
 250         }
 251 #endif
 252
 253
 254 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 255
 256 #undef BUFSIZZ
 257 #define BUFSIZZ 16*1024
 258 static int bufsize=BUFSIZZ;
 259 static int accept_socket= -1;
 260
 261 #define TEST_CERT       "server.pem"
 262 #ifndef OPENSSL_NO_TLSEXT
 263 #define TEST_CERT2      "server2.pem"
 264 #endif
 265 #undef PROG
 266 #define PROG            s_server_main
 267
 268 extern int verify_depth, verify_return_error, verify_quiet;
 269
 270 static int s_server_verify=SSL_VERIFY_NONE;
 271 static int s_server_session_id_context = 1; /* anything will do */
 272 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL, *s_chain_file=NULL;
 273 #ifndef OPENSSL_NO_TLSEXT
 274 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
 275 #endif
 276 static char *s_dcert_file=NULL,*s_dkey_file=NULL, *s_dchain_file=NULL;
 277 #ifdef FIONBIO
 278 static int s_nbio=0;
 279 #endif
 280 static int s_nbio_test=0;
 281 int s_crlf=0;
 282 static SSL_CTX *ctx=NULL;
 283 #ifndef OPENSSL_NO_TLSEXT
 284 static SSL_CTX *ctx2=NULL;
 285 #endif
 286 static int www=0;
 287
 288 static BIO *bio_s_out=NULL;
 289 static BIO *bio_s_msg = NULL;
 290 static int s_debug=0;
 291 #ifndef OPENSSL_NO_TLSEXT
 292 static int s_tlsextdebug=0;
 293 static int s_tlsextstatus=0;
 294 static int cert_status_cb(SSL *s, void *arg);
 295 #endif
 296 static int no_resume_ephemeral = 0;
 297 static int s_msg=0;
 298 static int s_quiet=0;
 299 static int s_ign_eof=0;
 300 static int s_brief=0;
 301
 302 static char *keymatexportlabel=NULL;
 303 static int keymatexportlen=20;
 304
 305 static int hack=0;
 306 #ifndef OPENSSL_NO_ENGINE
 307 static char *engine_id=NULL;
 308 #endif
 309 static const char *session_id_prefix=NULL;
 310
 311 static int enable_timeouts = 0;
 312 static long socket_mtu;
 313 #ifndef OPENSSL_NO_DTLS1
 314 static int cert_chain = 0;
 315 #endif
 316
 317 #ifndef OPENSSL_NO_TLSEXT
 318 static BIO *serverinfo_in = NULL;
 319 static const char *s_serverinfo_file = NULL;
 320
 321 #endif
 322
 323 #ifndef OPENSSL_NO_PSK
 324 static char *psk_identity="Client_identity";
 325 char *psk_key=NULL; /* by default PSK is not used */
 326
 327 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
 328         unsigned char *psk, unsigned int max_psk_len)
 329         {
 330         unsigned int psk_len = 0;
 331         int ret;
 332         BIGNUM *bn = NULL;
 333
 334         if (s_debug)
 335                 BIO_printf(bio_s_out,"psk_server_cb\n");
 336         if (!identity)
 337                 {
 338                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
 339                 goto out_err;
 340                 }
 341         if (s_debug)
 342                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
 343                         identity ? (int)strlen(identity) : 0, identity);
 344
 345         /* here we could lookup the given identity e.g. from a database */
 346         if (strcmp(identity, psk_identity) != 0)
 347                 {
 348                 BIO_printf(bio_s_out, "PSK error: client identity not found"
 349                            " (got '%s' expected '%s')\n", identity,
 350                            psk_identity);
 351                 goto out_err;
 352                 }
 353         if (s_debug)
 354                 BIO_printf(bio_s_out, "PSK client identity found\n");
 355
 356         /* convert the PSK key to binary */
 357         ret = BN_hex2bn(&bn, psk_key);
 358         if (!ret)
 359                 {
 360                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 361                 if (bn)
 362                         BN_free(bn);
 363                 return 0;
 364                 }
 365         if (BN_num_bytes(bn) > (int)max_psk_len)
 366                 {
 367                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 368                         max_psk_len, BN_num_bytes(bn));
 369                 BN_free(bn);
 370                 return 0;
 371                 }
 372
 373         ret = BN_bn2bin(bn, psk);
 374         BN_free(bn);
 375
 376         if (ret < 0)
 377                 goto out_err;
 378         psk_len = (unsigned int)ret;
 379
 380         if (s_debug)
 381                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
 382         return psk_len;
 383  out_err:
 384         if (s_debug)
 385                 BIO_printf(bio_err, "Error in PSK server callback\n");
 386         return 0;
 387         }
 388 #endif
 389
 390 #ifndef OPENSSL_NO_SRP
 391 /* This is a context that we pass to callbacks */
 392 typedef struct srpsrvparm_st
 393         {
 394         char *login;
 395         SRP_VBASE *vb;
 396         SRP_user_pwd *user;
 397         } srpsrvparm;
 398
 399 /* This callback pretends to require some asynchronous logic in order to obtain
 400    a verifier. When the callback is called for a new connection we return
 401    with a negative value. This will provoke the accept etc to return with
 402    an LOOKUP_X509. The main logic of the reinvokes the suspended call
 403    (which would normally occur after a worker has finished) and we
 404    set the user parameters.
 405 */
 406 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
 407         {
 408         srpsrvparm *p = (srpsrvparm *)arg;
 409         if (p->login == NULL && p->user == NULL )
 410                 {
 411                 p->login = SSL_get_srp_username(s);
 412                 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
 413                 return (-1) ;
 414                 }
 415
 416         if (p->user == NULL)
 417                 {
 418                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
 419                 return SSL3_AL_FATAL;
 420                 }
 421         if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
 422                                      p->user->info) < 0)
 423                 {
 424                 *ad = SSL_AD_INTERNAL_ERROR;
 425                 return SSL3_AL_FATAL;
 426                 }
 427         BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
 428         /* need to check whether there are memory leaks */
 429         p->user = NULL;
 430         p->login = NULL;
 431         return SSL_ERROR_NONE;
 432         }
 433
 434 #endif
 435
 436 #ifdef MONOLITH
 437 static void s_server_init(void)
 438         {
 439         accept_socket=-1;
 440         s_server_verify=SSL_VERIFY_NONE;
 441         s_dcert_file=NULL;
 442         s_dkey_file=NULL;
 443         s_dchain_file=NULL;
 444         s_cert_file=TEST_CERT;
 445         s_key_file=NULL;
 446         s_chain_file=NULL;
 447 #ifndef OPENSSL_NO_TLSEXT
 448         s_cert_file2=TEST_CERT2;
 449         s_key_file2=NULL;
 450         ctx2=NULL;
 451 #endif
 452 #ifdef FIONBIO
 453         s_nbio=0;
 454 #endif
 455         s_nbio_test=0;
 456         ctx=NULL;
 457         www=0;
 458
 459         bio_s_out=NULL;
 460         s_debug=0;
 461         s_msg=0;
 462         s_quiet=0;
 463         s_brief=0;
 464         hack=0;
 465 #ifndef OPENSSL_NO_ENGINE
 466         engine_id=NULL;
 467 #endif
 468         }
 469 #endif
 470
 471 static void sv_usage(void)
 472         {
 473         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 474         BIO_printf(bio_err,"\n");
 475         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 476         BIO_printf(bio_err," -checkhost host - check peer certificate matches \"host\"\n");
 477         BIO_printf(bio_err," -checkemail email - check peer certificate matches \"email\"\n");
 478         BIO_printf(bio_err," -checkip ipaddr - check peer certificate matches \"ipaddr\"\n");
 479         BIO_printf(bio_err," -context arg  - set session ID context\n");
 480         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 481         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 482         BIO_printf(bio_err," -verify_return_error - return verification errors\n");
 483         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 484         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 485 #ifndef OPENSSL_NO_TLSEXT
 486         BIO_printf(bio_err," -serverinfo arg - PEM serverinfo file for certificate\n");
 487         BIO_printf(bio_err," -auth               - send and receive RFC 5878 TLS auth extensions and supplemental data\n");
 488         BIO_printf(bio_err," -auth_require_reneg - Do not send TLS auth extensions until renegotiation\n");
 489 #endif
 490         BIO_printf(bio_err," -no_resumption_on_reneg - set SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION flag\n");
 491         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
 492                            "                 The CRL(s) are appended to the certificate file\n");
 493         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
 494                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
 495                            "                 the certificate file.\n");
 496         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 497         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 498         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 499         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 500         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 501         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 502         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 503         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 504         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 505         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 506         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 507         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 508 #ifndef OPENSSL_NO_ECDH
 509         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 510                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 511                            "                 (default is nistp256).\n");
 512 #endif
 513 #ifdef FIONBIO
 514         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 515 #endif
 516         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 517         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 518         BIO_printf(bio_err," -debug        - Print more output\n");
 519         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 520         BIO_printf(bio_err," -state        - Print the SSL states\n");
 521         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 522         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 523         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 524         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 525         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 526         BIO_printf(bio_err," -quiet        - No server output\n");
 527         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 528 #ifndef OPENSSL_NO_PSK
 529         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
 530         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 531 # ifndef OPENSSL_NO_JPAKE
 532         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 533 # endif
 534 #endif
 535 #ifndef OPENSSL_NO_SRP
 536         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
 537         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
 538 #endif
 539         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 540 #ifndef OPENSSL_NO_SSL3_METHOD
 541         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 542 #endif
 543         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
 544         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
 545         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 546         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 547         BIO_printf(bio_err," -dtls1_2      - Just talk DTLSv1.2\n");
 548         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 549         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
 550         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 551         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 552         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 553         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 554         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
 555         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
 556 #ifndef OPENSSL_NO_DH
 557         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 558 #endif
 559 #ifndef OPENSSL_NO_ECDH
 560         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 561 #endif
 562         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 563         BIO_printf(bio_err," -hack         - workaround for early Netscape code\n");
 564         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 565         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 566         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 567         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 568 #ifndef OPENSSL_NO_ENGINE
 569         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 570 #endif
 571         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 572         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 573 #ifndef OPENSSL_NO_TLSEXT
 574         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 575         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
 576         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 577         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 578         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 579         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 580         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
 581         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
 582         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 583 # ifndef OPENSSL_NO_NEXTPROTONEG
 584         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
 585 # endif
 586         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 587         BIO_printf(bio_err," -alpn arg  - set the advertised protocols for the ALPN extension (comma-separated list)\n");
 588 #endif
 589         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 590         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 591         BIO_printf(bio_err," -status           - respond to certificate status requests\n");
 592         BIO_printf(bio_err," -status_verbose   - enable status request verbose printout\n");
 593         BIO_printf(bio_err," -status_timeout n - status request responder timeout\n");
 594         BIO_printf(bio_err," -status_url URL   - status request fallback URL\n");
 595         }
 596
 597 static int local_argc=0;
 598 static char **local_argv;
 599
 600 #ifdef CHARSET_EBCDIC
 601 static int ebcdic_new(BIO *bi);
 602 static int ebcdic_free(BIO *a);
 603 static int ebcdic_read(BIO *b, char *out, int outl);
 604 static int ebcdic_write(BIO *b, const char *in, int inl);
 605 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 606 static int ebcdic_gets(BIO *bp, char *buf, int size);
 607 static int ebcdic_puts(BIO *bp, const char *str);
 608
 609 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 610 static BIO_METHOD methods_ebcdic=
 611         {
 612         BIO_TYPE_EBCDIC_FILTER,
 613         "EBCDIC/ASCII filter",
 614         ebcdic_write,
 615         ebcdic_read,
 616         ebcdic_puts,
 617         ebcdic_gets,
 618         ebcdic_ctrl,
 619         ebcdic_new,
 620         ebcdic_free,
 621         };
 622
 623 typedef struct
 624 {
 625         size_t  alloced;
 626         char    buff[1];
 627 } EBCDIC_OUTBUFF;
 628
 629 BIO_METHOD *BIO_f_ebcdic_filter()
 630 {
 631         return(&methods_ebcdic);
 632 }
 633
 634 static int ebcdic_new(BIO *bi)
 635 {
 636         EBCDIC_OUTBUFF *wbuf;
 637
 638         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 639         wbuf->alloced = 1024;
 640         wbuf->buff[0] = '\0';
 641
 642         bi->ptr=(char *)wbuf;
 643         bi->init=1;
 644         bi->flags=0;
 645         return(1);
 646 }
 647
 648 static int ebcdic_free(BIO *a)
 649 {
 650         if (a == NULL) return(0);
 651         if (a->ptr != NULL)
 652                 OPENSSL_free(a->ptr);
 653         a->ptr=NULL;
 654         a->init=0;
 655         a->flags=0;
 656         return(1);
 657 }
 658
 659 static int ebcdic_read(BIO *b, char *out, int outl)
 660 {
 661         int ret=0;
 662
 663         if (out == NULL || outl == 0) return(0);
 664         if (b->next_bio == NULL) return(0);
 665
 666         ret=BIO_read(b->next_bio,out,outl);
 667         if (ret > 0)
 668                 ascii2ebcdic(out,out,ret);
 669         return(ret);
 670 }
 671
 672 static int ebcdic_write(BIO *b, const char *in, int inl)
 673 {
 674         EBCDIC_OUTBUFF *wbuf;
 675         int ret=0;
 676         int num;
 677         unsigned char n;
 678
 679         if ((in == NULL) || (inl <= 0)) return(0);
 680         if (b->next_bio == NULL) return(0);
 681
 682         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 683
 684         if (inl > (num = wbuf->alloced))
 685         {
 686                 num = num + num;  /* double the size */
 687                 if (num < inl)
 688                         num = inl;
 689                 OPENSSL_free(wbuf);
 690                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 691
 692                 wbuf->alloced = num;
 693                 wbuf->buff[0] = '\0';
 694
 695                 b->ptr=(char *)wbuf;
 696         }
 697
 698         ebcdic2ascii(wbuf->buff, in, inl);
 699
 700         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 701
 702         return(ret);
 703 }
 704
 705 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 706 {
 707         long ret;
 708
 709         if (b->next_bio == NULL) return(0);
 710         switch (cmd)
 711         {
 712         case BIO_CTRL_DUP:
 713                 ret=0L;
 714                 break;
 715         default:
 716                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 717                 break;
 718         }
 719         return(ret);
 720 }
 721
 722 static int ebcdic_gets(BIO *bp, char *buf, int size)
 723 {
 724         int i, ret=0;
 725         if (bp->next_bio == NULL) return(0);
 726 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 727         for (i=0; i<size-1; ++i)
 728         {
 729                 ret = ebcdic_read(bp,&buf[i],1);
 730                 if (ret <= 0)
 731                         break;
 732                 else if (buf[i] == '\n')
 733                 {
 734                         ++i;
 735                         break;
 736                 }
 737         }
 738         if (i < size)
 739                 buf[i] = '\0';
 740         return (ret < 0 && i == 0) ? ret : i;
 741 }
 742
 743 static int ebcdic_puts(BIO *bp, const char *str)
 744 {
 745         if (bp->next_bio == NULL) return(0);
 746         return ebcdic_write(bp, str, strlen(str));
 747 }
 748 #endif
 749
 750 #ifndef OPENSSL_NO_TLSEXT
 751
 752 /* This is a context that we pass to callbacks */
 753 typedef struct tlsextctx_st {
 754    char * servername;
 755    BIO * biodebug;
 756    int extension_error;
 757 } tlsextctx;
 758
 759
 760 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 761         {
 762         tlsextctx * p = (tlsextctx *) arg;
 763         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 764         if (servername && p->biodebug)
 765                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 766
 767         if (!p->servername)
 768                 return SSL_TLSEXT_ERR_NOACK;
 769
 770         if (servername)
 771                 {
 772                 if (strcasecmp(servername,p->servername))
 773                         return p->extension_error;
 774                 if (ctx2)
 775                         {
 776                         BIO_printf(p->biodebug,"Switching server context.\n");
 777                         SSL_set_SSL_CTX(s,ctx2);
 778                         }
 779                 }
 780         return SSL_TLSEXT_ERR_OK;
 781 }
 782
 783 /* Structure passed to cert status callback */
 784
 785 typedef struct tlsextstatusctx_st {
 786    /* Default responder to use */
 787    char *host, *path, *port;
 788    int use_ssl;
 789    int timeout;
 790    BIO *err;
 791    int verbose;
 792 } tlsextstatusctx;
 793
 794 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
 795
 796 /* Certificate Status callback. This is called when a client includes a
 797  * certificate status request extension.
 798  *
 799  * This is a simplified version. It examines certificates each time and
 800  * makes one OCSP responder query for each request.
 801  *
 802  * A full version would store details such as the OCSP certificate IDs and
 803  * minimise the number of OCSP responses by caching them until they were
 804  * considered "expired".
 805  */
 806
 807 static int cert_status_cb(SSL *s, void *arg)
 808         {
 809         tlsextstatusctx *srctx = arg;
 810         BIO *err = srctx->err;
 811         char *host, *port, *path;
 812         int use_ssl;
 813         unsigned char *rspder = NULL;
 814         int rspderlen;
 815         STACK_OF(OPENSSL_STRING) *aia = NULL;
 816         X509 *x = NULL;
 817         X509_STORE_CTX inctx;
 818         X509_OBJECT obj;
 819         OCSP_REQUEST *req = NULL;
 820         OCSP_RESPONSE *resp = NULL;
 821         OCSP_CERTID *id = NULL;
 822         STACK_OF(X509_EXTENSION) *exts;
 823         int ret = SSL_TLSEXT_ERR_NOACK;
 824         int i;
 825 #if 0
 826 STACK_OF(OCSP_RESPID) *ids;
 827 SSL_get_tlsext_status_ids(s, &ids);
 828 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
 829 #endif
 830         if (srctx->verbose)
 831                 BIO_puts(err, "cert_status: callback called\n");
 832         /* Build up OCSP query from server certificate */
 833         x = SSL_get_certificate(s);
 834         aia = X509_get1_ocsp(x);
 835         if (aia)
 836                 {
 837                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
 838                         &host, &port, &path, &use_ssl))
 839                         {
 840                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
 841                         goto err;
 842                         }
 843                 if (srctx->verbose)
 844                         BIO_printf(err, "cert_status: AIA URL: %s\n",
 845                                         sk_OPENSSL_STRING_value(aia, 0));
 846                 }
 847         else
 848                 {
 849                 if (!srctx->host)
 850                         {
 851                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
 852                         goto done;
 853                         }
 854                 host = srctx->host;
 855                 path = srctx->path;
 856                 port = srctx->port;
 857                 use_ssl = srctx->use_ssl;
 858                 }
 859
 860         if (!X509_STORE_CTX_init(&inctx,
 861                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
 862                                 NULL, NULL))
 863                 goto err;
 864         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
 865                                 X509_get_issuer_name(x),&obj) <= 0)
 866                 {
 867                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
 868                 X509_STORE_CTX_cleanup(&inctx);
 869                 goto done;
 870                 }
 871         req = OCSP_REQUEST_new();
 872         if (!req)
 873                 goto err;
 874         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
 875         X509_free(obj.data.x509);
 876         X509_STORE_CTX_cleanup(&inctx);
 877         if (!id)
 878                 goto err;
 879         if (!OCSP_request_add0_id(req, id))
 880                 goto err;
 881         id = NULL;
 882         /* Add any extensions to the request */
 883         SSL_get_tlsext_status_exts(s, &exts);
 884         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
 885                 {
 886                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
 887                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
 888                         goto err;
 889                 }
 890         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
 891                                         srctx->timeout);
 892         if (!resp)
 893                 {
 894                 BIO_puts(err, "cert_status: error querying responder\n");
 895                 goto done;
 896                 }
 897         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
 898         if (rspderlen <= 0)
 899                 goto err;
 900         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
 901         if (srctx->verbose)
 902                 {
 903                 BIO_puts(err, "cert_status: ocsp response sent:\n");
 904                 OCSP_RESPONSE_print(err, resp, 2);
 905                 }
 906         ret = SSL_TLSEXT_ERR_OK;
 907         done:
 908         if (ret != SSL_TLSEXT_ERR_OK)
 909                 ERR_print_errors(err);
 910         if (aia)
 911                 {
 912                 OPENSSL_free(host);
 913                 OPENSSL_free(path);
 914                 OPENSSL_free(port);
 915                 X509_email_free(aia);
 916                 }
 917         if (id)
 918                 OCSP_CERTID_free(id);
 919         if (req)
 920                 OCSP_REQUEST_free(req);
 921         if (resp)
 922                 OCSP_RESPONSE_free(resp);
 923         return ret;
 924         err:
 925         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
 926         goto done;
 927         }
 928
 929 # ifndef OPENSSL_NO_NEXTPROTONEG
 930 /* This is the context that we pass to next_proto_cb */
 931 typedef struct tlsextnextprotoctx_st {
 932         unsigned char *data;
 933         unsigned int len;
 934 } tlsextnextprotoctx;
 935
 936 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
 937         {
 938         tlsextnextprotoctx *next_proto = arg;
 939
 940         *data = next_proto->data;
 941         *len = next_proto->len;
 942
 943         return SSL_TLSEXT_ERR_OK;
 944         }
 945 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 946
 947 /* This the context that we pass to alpn_cb */
 948 typedef struct tlsextalpnctx_st {
 949         unsigned char *data;
 950         unsigned short len;
 951 } tlsextalpnctx;
 952
 953 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
 954         {
 955         tlsextalpnctx *alpn_ctx = arg;
 956
 957         if (!s_quiet)
 958                 {
 959                 /* We can assume that |in| is syntactically valid. */
 960                 unsigned i;
 961                 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
 962                 for (i = 0; i < inlen; )
 963                         {
 964                         if (i)
 965                                 BIO_write(bio_s_out, ", ", 2);
 966                         BIO_write(bio_s_out, &in[i + 1], in[i]);
 967                         i += in[i] + 1;
 968                         }
 969                 BIO_write(bio_s_out, "\n", 1);
 970                 }
 971
 972         if (SSL_select_next_proto((unsigned char**) out, outlen, alpn_ctx->data, alpn_ctx->len, in, inlen) !=
 973             OPENSSL_NPN_NEGOTIATED)
 974                 {
 975                 return SSL_TLSEXT_ERR_NOACK;
 976                 }
 977
 978         if (!s_quiet)
 979                 {
 980                 BIO_printf(bio_s_out, "ALPN protocols selected: ");
 981                 BIO_write(bio_s_out, *out, *outlen);
 982                 BIO_write(bio_s_out, "\n", 1);
 983                 }
 984
 985         return SSL_TLSEXT_ERR_OK;
 986         }
 987 #endif  /* ndef OPENSSL_NO_TLSEXT */
 988
 989 int MAIN(int, char **);
 990
 991 #ifndef OPENSSL_NO_JPAKE
 992 static char *jpake_secret = NULL;
 993 #define no_jpake !jpake_secret
 994 #else
 995 #define no_jpake 1
 996 #endif
 997 #ifndef OPENSSL_NO_SRP
 998         static srpsrvparm srp_callback_parm;
 999 #endif
1000 static char *srtp_profiles = NULL;
1001
1002 int MAIN(int argc, char *argv[])
1003         {
1004         X509_VERIFY_PARAM *vpm = NULL;
1005         int badarg = 0;
1006         short port=PORT;
1007         char *CApath=NULL,*CAfile=NULL;
1008         char *chCApath=NULL,*chCAfile=NULL;
1009         char *vfyCApath=NULL,*vfyCAfile=NULL;
1010         unsigned char *context = NULL;
1011         char *dhfile = NULL;
1012         int badop=0;
1013         int ret=1;
1014         int build_chain = 0;
1015         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
1016         int state=0;
1017         const SSL_METHOD *meth=NULL;
1018         int socket_type=SOCK_STREAM;
1019         ENGINE *e=NULL;
1020         char *inrand=NULL;
1021         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
1022         char *passarg = NULL, *pass = NULL;
1023         char *dpassarg = NULL, *dpass = NULL;
1024         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
1025         X509 *s_cert = NULL, *s_dcert = NULL;
1026         STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
1027         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
1028         int no_cache = 0, ext_cache = 0;
1029         int rev = 0, naccept = -1;
1030 #ifndef OPENSSL_NO_TLSEXT
1031         EVP_PKEY *s_key2 = NULL;
1032         X509 *s_cert2 = NULL;
1033         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
1034 # ifndef OPENSSL_NO_NEXTPROTONEG
1035         const char *next_proto_neg_in = NULL;
1036         tlsextnextprotoctx next_proto = { NULL, 0};
1037 # endif
1038         const char *alpn_in = NULL;
1039         tlsextalpnctx alpn_ctx = { NULL, 0};
1040 #endif
1041 #ifndef OPENSSL_NO_PSK
1042         /* by default do not send a PSK identity hint */
1043         static char *psk_identity_hint=NULL;
1044 #endif
1045 #ifndef OPENSSL_NO_SRP
1046         char *srpuserseed = NULL;
1047         char *srp_verifier_file = NULL;
1048 #endif
1049         SSL_EXCERT *exc = NULL;
1050         SSL_CONF_CTX *cctx = NULL;
1051         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
1052
1053         char *crl_file = NULL;
1054         int crl_format = FORMAT_PEM;
1055         int crl_download = 0;
1056         STACK_OF(X509_CRL) *crls = NULL;
1057
1058         meth=SSLv23_server_method();
1059
1060         local_argc=argc;
1061         local_argv=argv;
1062
1063         apps_startup();
1064 #ifdef MONOLITH
1065         s_server_init();
1066 #endif
1067
1068         if (bio_err == NULL)
1069                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
1070
1071         if (!load_config(bio_err, NULL))
1072                 goto end;
1073
1074         cctx = SSL_CONF_CTX_new();
1075         if (!cctx)
1076                 goto end;
1077         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
1078         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
1079
1080         verify_depth=0;
1081 #ifdef FIONBIO
1082         s_nbio=0;
1083 #endif
1084         s_nbio_test=0;
1085
1086         argc--;
1087         argv++;
1088
1089         while (argc >= 1)
1090                 {
1091                 if      ((strcmp(*argv,"-port") == 0) ||
1092                          (strcmp(*argv,"-accept") == 0))
1093                         {
1094                         if (--argc < 1) goto bad;
1095                         if (!extract_port(*(++argv),&port))
1096                                 goto bad;
1097                         }
1098                 else if (strcmp(*argv,"-naccept") == 0)
1099                         {
1100                         if (--argc < 1) goto bad;
1101                         naccept = atol(*(++argv));
1102                         if (naccept <= 0)
1103                                 {
1104                                 BIO_printf(bio_err, "bad accept value %s\n",
1105                                                         *argv);
1106                                 goto bad;
1107                                 }
1108                         }
1109                 else if (strcmp(*argv,"-verify") == 0)
1110                         {
1111                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1112                         if (--argc < 1) goto bad;
1113                         verify_depth=atoi(*(++argv));
1114                         if (!s_quiet)
1115                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1116                         }
1117                 else if (strcmp(*argv,"-Verify") == 0)
1118                         {
1119                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1120                                 SSL_VERIFY_CLIENT_ONCE;
1121                         if (--argc < 1) goto bad;
1122                         verify_depth=atoi(*(++argv));
1123                         if (!s_quiet)
1124                                 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1125                         }
1126                 else if (strcmp(*argv,"-context") == 0)
1127                         {
1128                         if (--argc < 1) goto bad;
1129                         context= (unsigned char *)*(++argv);
1130                         }
1131                 else if (strcmp(*argv,"-cert") == 0)
1132                         {
1133                         if (--argc < 1) goto bad;
1134                         s_cert_file= *(++argv);
1135                         }
1136                 else if (strcmp(*argv,"-CRL") == 0)
1137                         {
1138                         if (--argc < 1) goto bad;
1139                         crl_file= *(++argv);
1140                         }
1141                 else if (strcmp(*argv,"-crl_download") == 0)
1142                         crl_download = 1;
1143 #ifndef OPENSSL_NO_TLSEXT
1144                 else if (strcmp(*argv,"-serverinfo") == 0)
1145                         {
1146                         if (--argc < 1) goto bad;
1147                         s_serverinfo_file = *(++argv);
1148                         }
1149 #endif
1150                 else if (strcmp(*argv,"-certform") == 0)
1151                         {
1152                         if (--argc < 1) goto bad;
1153                         s_cert_format = str2fmt(*(++argv));
1154                         }
1155                 else if (strcmp(*argv,"-key") == 0)
1156                         {
1157                         if (--argc < 1) goto bad;
1158                         s_key_file= *(++argv);
1159                         }
1160                 else if (strcmp(*argv,"-keyform") == 0)
1161                         {
1162                         if (--argc < 1) goto bad;
1163                         s_key_format = str2fmt(*(++argv));
1164                         }
1165                 else if (strcmp(*argv,"-pass") == 0)
1166                         {
1167                         if (--argc < 1) goto bad;
1168                         passarg = *(++argv);
1169                         }
1170                 else if (strcmp(*argv,"-cert_chain") == 0)
1171                         {
1172                         if (--argc < 1) goto bad;
1173                         s_chain_file= *(++argv);
1174                         }
1175                 else if (strcmp(*argv,"-dhparam") == 0)
1176                         {
1177                         if (--argc < 1) goto bad;
1178                         dhfile = *(++argv);
1179                         }
1180                 else if (strcmp(*argv,"-dcertform") == 0)
1181                         {
1182                         if (--argc < 1) goto bad;
1183                         s_dcert_format = str2fmt(*(++argv));
1184                         }
1185                 else if (strcmp(*argv,"-dcert") == 0)
1186                         {
1187                         if (--argc < 1) goto bad;
1188                         s_dcert_file= *(++argv);
1189                         }
1190                 else if (strcmp(*argv,"-dkeyform") == 0)
1191                         {
1192                         if (--argc < 1) goto bad;
1193                         s_dkey_format = str2fmt(*(++argv));
1194                         }
1195                 else if (strcmp(*argv,"-dpass") == 0)
1196                         {
1197                         if (--argc < 1) goto bad;
1198                         dpassarg = *(++argv);
1199                         }
1200                 else if (strcmp(*argv,"-dkey") == 0)
1201                         {
1202                         if (--argc < 1) goto bad;
1203                         s_dkey_file= *(++argv);
1204                         }
1205                 else if (strcmp(*argv,"-dcert_chain") == 0)
1206                         {
1207                         if (--argc < 1) goto bad;
1208                         s_dchain_file= *(++argv);
1209                         }
1210                 else if (strcmp(*argv,"-nocert") == 0)
1211                         {
1212                         nocert=1;
1213                         }
1214                 else if (strcmp(*argv,"-CApath") == 0)
1215                         {
1216                         if (--argc < 1) goto bad;
1217                         CApath= *(++argv);
1218                         }
1219                 else if (strcmp(*argv,"-chainCApath") == 0)
1220                         {
1221                         if (--argc < 1) goto bad;
1222                         chCApath= *(++argv);
1223                         }
1224                 else if (strcmp(*argv,"-verifyCApath") == 0)
1225                         {
1226                         if (--argc < 1) goto bad;
1227                         vfyCApath= *(++argv);
1228                         }
1229                 else if (strcmp(*argv,"-no_cache") == 0)
1230                         no_cache = 1;
1231                 else if (strcmp(*argv,"-ext_cache") == 0)
1232                         ext_cache = 1;
1233                 else if (strcmp(*argv,"-CRLform") == 0)
1234                         {
1235                         if (--argc < 1) goto bad;
1236                         crl_format = str2fmt(*(++argv));
1237                         }
1238                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1239                         {
1240                         if (badarg)
1241                                 goto bad;
1242                         continue;
1243                         }
1244                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
1245                         {
1246                         if (badarg)
1247                                 goto bad;
1248                         continue;
1249                         }
1250                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
1251                         {
1252                         if (badarg)
1253                                 goto bad;
1254                         continue;
1255                         }
1256                 else if (strcmp(*argv,"-verify_return_error") == 0)
1257                         verify_return_error = 1;
1258                 else if (strcmp(*argv,"-verify_quiet") == 0)
1259                         verify_quiet = 1;
1260                 else if (strcmp(*argv,"-build_chain") == 0)
1261                         build_chain = 1;
1262                 else if (strcmp(*argv,"-CAfile") == 0)
1263                         {
1264                         if (--argc < 1) goto bad;
1265                         CAfile= *(++argv);
1266                         }
1267                 else if (strcmp(*argv,"-chainCAfile") == 0)
1268                         {
1269                         if (--argc < 1) goto bad;
1270                         chCAfile= *(++argv);
1271                         }
1272                 else if (strcmp(*argv,"-verifyCAfile") == 0)
1273                         {
1274                         if (--argc < 1) goto bad;
1275                         vfyCAfile= *(++argv);
1276                         }
1277 #ifdef FIONBIO
1278                 else if (strcmp(*argv,"-nbio") == 0)
1279                         { s_nbio=1; }
1280 #endif
1281                 else if (strcmp(*argv,"-nbio_test") == 0)
1282                         {
1283 #ifdef FIONBIO
1284                         s_nbio=1;
1285 #endif
1286                         s_nbio_test=1;
1287                         }
1288                 else if (strcmp(*argv,"-ign_eof") == 0)
1289                         s_ign_eof=1;
1290                 else if (strcmp(*argv,"-no_ign_eof") == 0)
1291                         s_ign_eof=0;
1292                 else if (strcmp(*argv,"-debug") == 0)
1293                         { s_debug=1; }
1294 #ifndef OPENSSL_NO_TLSEXT
1295                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1296                         s_tlsextdebug=1;
1297                 else if (strcmp(*argv,"-status") == 0)
1298                         s_tlsextstatus=1;
1299                 else if (strcmp(*argv,"-status_verbose") == 0)
1300                         {
1301                         s_tlsextstatus=1;
1302                         tlscstatp.verbose = 1;
1303                         }
1304                 else if (!strcmp(*argv, "-status_timeout"))
1305                         {
1306                         s_tlsextstatus=1;
1307                         if (--argc < 1) goto bad;
1308                         tlscstatp.timeout = atoi(*(++argv));
1309                         }
1310                 else if (!strcmp(*argv, "-status_url"))
1311                         {
1312                         s_tlsextstatus=1;
1313                         if (--argc < 1) goto bad;
1314                         if (!OCSP_parse_url(*(++argv),
1315                                         &tlscstatp.host,
1316                                         &tlscstatp.port,
1317                                         &tlscstatp.path,
1318                                         &tlscstatp.use_ssl))
1319                                 {
1320                                 BIO_printf(bio_err, "Error parsing URL\n");
1321                                 goto bad;
1322                                 }
1323                         }
1324 #endif
1325                 else if (strcmp(*argv,"-msg") == 0)
1326                         { s_msg=1; }
1327                 else if (strcmp(*argv,"-msgfile") == 0)
1328                         {
1329                         if (--argc < 1) goto bad;
1330                         bio_s_msg = BIO_new_file(*(++argv), "w");
1331                         }
1332 #ifndef OPENSSL_NO_SSL_TRACE
1333                 else if (strcmp(*argv,"-trace") == 0)
1334                         { s_msg=2; }
1335 #endif
1336                 else if (strcmp(*argv,"-hack") == 0)
1337                         { hack=1; }
1338                 else if (strcmp(*argv,"-state") == 0)
1339                         { state=1; }
1340                 else if (strcmp(*argv,"-crlf") == 0)
1341                         { s_crlf=1; }
1342                 else if (strcmp(*argv,"-quiet") == 0)
1343                         { s_quiet=1; }
1344                 else if (strcmp(*argv,"-brief") == 0)
1345                         {
1346                         s_quiet=1;
1347                         s_brief=1;
1348                         verify_quiet=1;
1349                         }
1350                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1351                         { no_tmp_rsa=1; }
1352                 else if (strcmp(*argv,"-no_dhe") == 0)
1353                         { no_dhe=1; }
1354                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1355                         { no_ecdhe=1; }
1356                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1357                         { no_resume_ephemeral = 1; }
1358 #ifndef OPENSSL_NO_PSK
1359                 else if (strcmp(*argv,"-psk_hint") == 0)
1360                         {
1361                         if (--argc < 1) goto bad;
1362                         psk_identity_hint= *(++argv);
1363                         }
1364                 else if (strcmp(*argv,"-psk") == 0)
1365                         {
1366                         size_t i;
1367
1368                         if (--argc < 1) goto bad;
1369                         psk_key=*(++argv);
1370                         for (i=0; i<strlen(psk_key); i++)
1371                                 {
1372                                 if (isxdigit((unsigned char)psk_key[i]))
1373                                         continue;
1374                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1375                                 goto bad;
1376                                 }
1377                         }
1378 #endif
1379 #ifndef OPENSSL_NO_SRP
1380                 else if (strcmp(*argv, "-srpvfile") == 0)
1381                         {
1382                         if (--argc < 1) goto bad;
1383                         srp_verifier_file = *(++argv);
1384                         meth = TLSv1_server_method();
1385                         }
1386                 else if (strcmp(*argv, "-srpuserseed") == 0)
1387                         {
1388                         if (--argc < 1) goto bad;
1389                         srpuserseed = *(++argv);
1390                         meth = TLSv1_server_method();
1391                         }
1392 #endif
1393                 else if (strcmp(*argv,"-rev") == 0)
1394                         { rev=1; }
1395                 else if (strcmp(*argv,"-www") == 0)
1396                         { www=1; }
1397                 else if (strcmp(*argv,"-WWW") == 0)
1398                         { www=2; }
1399                 else if (strcmp(*argv,"-HTTP") == 0)
1400                         { www=3; }
1401 #ifndef OPENSSL_NO_SSL2
1402                 else if (strcmp(*argv,"-ssl2") == 0)
1403                         {
1404                         no_ecdhe=1;
1405                         meth=SSLv2_server_method();
1406                         }
1407 #endif
1408 #ifndef OPENSSL_NO_SSL3_METHOD
1409                 else if (strcmp(*argv,"-ssl3") == 0)
1410                         { meth=SSLv3_server_method(); }
1411 #endif
1412 #ifndef OPENSSL_NO_TLS1
1413                 else if (strcmp(*argv,"-tls1") == 0)
1414                         { meth=TLSv1_server_method(); }
1415                 else if (strcmp(*argv,"-tls1_1") == 0)
1416                         { meth=TLSv1_1_server_method(); }
1417                 else if (strcmp(*argv,"-tls1_2") == 0)
1418                         { meth=TLSv1_2_server_method(); }
1419 #endif
1420 #ifndef OPENSSL_NO_DTLS1
1421                 else if (strcmp(*argv,"-dtls") == 0)
1422                         {
1423                         meth=DTLS_server_method();
1424                         socket_type = SOCK_DGRAM;
1425                         }
1426                 else if (strcmp(*argv,"-dtls1") == 0)
1427                         {
1428                         meth=DTLSv1_server_method();
1429                         socket_type = SOCK_DGRAM;
1430                         }
1431                 else if (strcmp(*argv,"-dtls1_2") == 0)
1432                         {
1433                         meth=DTLSv1_2_server_method();
1434                         socket_type = SOCK_DGRAM;
1435                         }
1436                 else if (strcmp(*argv,"-timeout") == 0)
1437                         enable_timeouts = 1;
1438                 else if (strcmp(*argv,"-mtu") == 0)
1439                         {
1440                         if (--argc < 1) goto bad;
1441                         socket_mtu = atol(*(++argv));
1442                         }
1443                 else if (strcmp(*argv, "-chain") == 0)
1444                         cert_chain = 1;
1445 #endif
1446                 else if (strcmp(*argv, "-id_prefix") == 0)
1447                         {
1448                         if (--argc < 1) goto bad;
1449                         session_id_prefix = *(++argv);
1450                         }
1451 #ifndef OPENSSL_NO_ENGINE
1452                 else if (strcmp(*argv,"-engine") == 0)
1453                         {
1454                         if (--argc < 1) goto bad;
1455                         engine_id= *(++argv);
1456                         }
1457 #endif
1458                 else if (strcmp(*argv,"-rand") == 0)
1459                         {
1460                         if (--argc < 1) goto bad;
1461                         inrand= *(++argv);
1462                         }
1463 #ifndef OPENSSL_NO_TLSEXT
1464                 else if (strcmp(*argv,"-servername") == 0)
1465                         {
1466                         if (--argc < 1) goto bad;
1467                         tlsextcbp.servername= *(++argv);
1468                         }
1469                 else if (strcmp(*argv,"-servername_fatal") == 0)
1470                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1471                 else if (strcmp(*argv,"-cert2") == 0)
1472                         {
1473                         if (--argc < 1) goto bad;
1474                         s_cert_file2= *(++argv);
1475                         }
1476                 else if (strcmp(*argv,"-key2") == 0)
1477                         {
1478                         if (--argc < 1) goto bad;
1479                         s_key_file2= *(++argv);
1480                         }
1481 # ifndef OPENSSL_NO_NEXTPROTONEG
1482                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1483                         {
1484                         if (--argc < 1) goto bad;
1485                         next_proto_neg_in = *(++argv);
1486                         }
1487 # endif
1488                 else if (strcmp(*argv,"-alpn") == 0)
1489                         {
1490                         if (--argc < 1) goto bad;
1491                         alpn_in = *(++argv);
1492                         }
1493 #endif
1494 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1495                 else if (strcmp(*argv,"-jpake") == 0)
1496                         {
1497                         if (--argc < 1) goto bad;
1498                         jpake_secret = *(++argv);
1499                         }
1500 #endif
1501                 else if (strcmp(*argv,"-use_srtp") == 0)
1502                         {
1503                         if (--argc < 1) goto bad;
1504                         srtp_profiles = *(++argv);
1505                         }
1506                 else if (strcmp(*argv,"-keymatexport") == 0)
1507                         {
1508                         if (--argc < 1) goto bad;
1509                         keymatexportlabel= *(++argv);
1510                         }
1511                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1512                         {
1513                         if (--argc < 1) goto bad;
1514                         keymatexportlen=atoi(*(++argv));
1515                         if (keymatexportlen == 0) goto bad;
1516                         }
1517                 else
1518                         {
1519                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1520                         badop=1;
1521                         break;
1522                         }
1523                 argc--;
1524                 argv++;
1525                 }
1526         if (badop)
1527                 {
1528 bad:
1529                 sv_usage();
1530                 goto end;
1531                 }
1532 #ifndef OPENSSL_NO_DTLS1
1533         if (www && socket_type == SOCK_DGRAM)
1534                 {
1535                 BIO_printf(bio_err,
1536                                 "Can't use -HTTP, -www or -WWW with DTLS\n");
1537                 goto end;
1538                 }
1539 #endif
1540
1541 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1542         if (jpake_secret)
1543                 {
1544                 if (psk_key)
1545                         {
1546                         BIO_printf(bio_err,
1547                                    "Can't use JPAKE and PSK together\n");
1548                         goto end;
1549                         }
1550                 psk_identity = "JPAKE";
1551                 }
1552 #endif
1553
1554         SSL_load_error_strings();
1555         OpenSSL_add_ssl_algorithms();
1556
1557 #ifndef OPENSSL_NO_ENGINE
1558         e = setup_engine(bio_err, engine_id, 1);
1559 #endif
1560
1561         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1562                 {
1563                 BIO_printf(bio_err, "Error getting password\n");
1564                 goto end;
1565                 }
1566
1567
1568         if (s_key_file == NULL)
1569                 s_key_file = s_cert_file;
1570 #ifndef OPENSSL_NO_TLSEXT
1571         if (s_key_file2 == NULL)
1572                 s_key_file2 = s_cert_file2;
1573 #endif
1574
1575         if (!load_excert(&exc, bio_err))
1576                 goto end;
1577
1578         if (nocert == 0)
1579                 {
1580                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1581                        "server certificate private key file");
1582                 if (!s_key)
1583                         {
1584                         ERR_print_errors(bio_err);
1585                         goto end;
1586                         }
1587
1588                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1589                         NULL, e, "server certificate file");
1590
1591                 if (!s_cert)
1592                         {
1593                         ERR_print_errors(bio_err);
1594                         goto end;
1595                         }
1596                 if (s_chain_file)
1597                         {
1598                         s_chain = load_certs(bio_err, s_chain_file,FORMAT_PEM,
1599                                         NULL, e, "server certificate chain");
1600                         if (!s_chain)
1601                                 goto end;
1602                         }
1603
1604 #ifndef OPENSSL_NO_TLSEXT
1605                 if (tlsextcbp.servername)
1606                         {
1607                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1608                                 "second server certificate private key file");
1609                         if (!s_key2)
1610                                 {
1611                                 ERR_print_errors(bio_err);
1612                                 goto end;
1613                                 }
1614
1615                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1616                                 NULL, e, "second server certificate file");
1617
1618                         if (!s_cert2)
1619                                 {
1620                                 ERR_print_errors(bio_err);
1621                                 goto end;
1622                                 }
1623                         }
1624 #endif /* OPENSSL_NO_TLSEXT */
1625                 }
1626
1627 #if !defined(OPENSSL_NO_TLSEXT)
1628 # if !defined(OPENSSL_NO_NEXTPROTONEG)
1629         if (next_proto_neg_in)
1630                 {
1631                 unsigned short len;
1632                 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1633                 if (next_proto.data == NULL)
1634                         goto end;
1635                 next_proto.len = len;
1636                 }
1637         else
1638                 {
1639                 next_proto.data = NULL;
1640                 }
1641 # endif
1642         alpn_ctx.data = NULL;
1643         if (alpn_in)
1644                 {
1645                 unsigned short len;
1646                 alpn_ctx.data = next_protos_parse(&len, alpn_in);
1647                 if (alpn_ctx.data == NULL)
1648                         goto end;
1649                 alpn_ctx.len = len;
1650                 }
1651 #endif
1652
1653         if (crl_file)
1654                 {
1655                 X509_CRL *crl;
1656                 crl = load_crl(crl_file, crl_format);
1657                 if (!crl)
1658                         {
1659                         BIO_puts(bio_err, "Error loading CRL\n");
1660                         ERR_print_errors(bio_err);
1661                         goto end;
1662                         }
1663                 crls = sk_X509_CRL_new_null();
1664                 if (!crls || !sk_X509_CRL_push(crls, crl))
1665                         {
1666                         BIO_puts(bio_err, "Error adding CRL\n");
1667                         ERR_print_errors(bio_err);
1668                         X509_CRL_free(crl);
1669                         goto end;
1670                         }
1671                 }
1672
1673
1674         if (s_dcert_file)
1675                 {
1676
1677                 if (s_dkey_file == NULL)
1678                         s_dkey_file = s_dcert_file;
1679
1680                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1681                                 0, dpass, e,
1682                                "second certificate private key file");
1683                 if (!s_dkey)
1684                         {
1685                         ERR_print_errors(bio_err);
1686                         goto end;
1687                         }
1688
1689                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1690                                 NULL, e, "second server certificate file");
1691
1692                 if (!s_dcert)
1693                         {
1694                         ERR_print_errors(bio_err);
1695                         goto end;
1696                         }
1697                 if (s_dchain_file)
1698                         {
1699                         s_dchain = load_certs(bio_err, s_dchain_file,FORMAT_PEM,
1700                                 NULL, e, "second server certificate chain");
1701                         if (!s_dchain)
1702                                 goto end;
1703                         }
1704
1705                 }
1706
1707         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1708                 && !RAND_status())
1709                 {
1710                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1711                 }
1712         if (inrand != NULL)
1713                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1714                         app_RAND_load_files(inrand));
1715
1716         if (bio_s_out == NULL)
1717                 {
1718                 if (s_quiet && !s_debug)
1719                         {
1720                         bio_s_out=BIO_new(BIO_s_null());
1721                         if (s_msg && !bio_s_msg)
1722                                 bio_s_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1723                         }
1724                 else
1725                         {
1726                         if (bio_s_out == NULL)
1727                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1728                         }
1729                 }
1730
1731 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1732         if (nocert)
1733 #endif
1734                 {
1735                 s_cert_file=NULL;
1736                 s_key_file=NULL;
1737                 s_dcert_file=NULL;
1738                 s_dkey_file=NULL;
1739 #ifndef OPENSSL_NO_TLSEXT
1740                 s_cert_file2=NULL;
1741                 s_key_file2=NULL;
1742 #endif
1743                 }
1744
1745         ctx=SSL_CTX_new(meth);
1746         if (ctx == NULL)
1747                 {
1748                 ERR_print_errors(bio_err);
1749                 goto end;
1750                 }
1751         if (session_id_prefix)
1752                 {
1753                 if(strlen(session_id_prefix) >= 32)
1754                         BIO_printf(bio_err,
1755 "warning: id_prefix is too long, only one new session will be possible\n");
1756                 else if(strlen(session_id_prefix) >= 16)
1757                         BIO_printf(bio_err,
1758 "warning: id_prefix is too long if you use SSLv2\n");
1759                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1760                         {
1761                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1762                         ERR_print_errors(bio_err);
1763                         goto end;
1764                         }
1765                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1766                 }
1767         SSL_CTX_set_quiet_shutdown(ctx,1);
1768         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1769         if (exc) ssl_ctx_set_excert(ctx, exc);
1770         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1771          * Setting read ahead solves this problem.
1772          */
1773         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1774
1775         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1776         if (no_cache)
1777                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1778         else if (ext_cache)
1779                 init_session_cache_ctx(ctx);
1780         else
1781                 SSL_CTX_sess_set_cache_size(ctx,128);
1782
1783         if (srtp_profiles != NULL)
1784                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1785
1786 #if 0
1787         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1788 #endif
1789
1790 #if 0
1791         if (s_cert_file == NULL)
1792                 {
1793                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1794                 goto end;
1795                 }
1796 #endif
1797
1798         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1799                 (!SSL_CTX_set_default_verify_paths(ctx)))
1800                 {
1801                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1802                 ERR_print_errors(bio_err);
1803                 /* goto end; */
1804                 }
1805         if (vpm)
1806                 SSL_CTX_set1_param(ctx, vpm);
1807
1808         ssl_ctx_add_crls(ctx, crls, 0);
1809
1810         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1811                 goto end;
1812
1813         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1814                                                 crls, crl_download))
1815                 {
1816                 BIO_printf(bio_err, "Error loading store locations\n");
1817                 ERR_print_errors(bio_err);
1818                 goto end;
1819                 }
1820
1821 #ifndef OPENSSL_NO_TLSEXT
1822         if (s_cert2)
1823                 {
1824                 ctx2=SSL_CTX_new(meth);
1825                 if (ctx2 == NULL)
1826                         {
1827                         ERR_print_errors(bio_err);
1828                         goto end;
1829                         }
1830                 }
1831
1832         if (ctx2)
1833                 {
1834                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1835
1836                 if (session_id_prefix)
1837                         {
1838                         if(strlen(session_id_prefix) >= 32)
1839                                 BIO_printf(bio_err,
1840                                         "warning: id_prefix is too long, only one new session will be possible\n");
1841                         else if(strlen(session_id_prefix) >= 16)
1842                                 BIO_printf(bio_err,
1843                                         "warning: id_prefix is too long if you use SSLv2\n");
1844                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1845                                 {
1846                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1847                                 ERR_print_errors(bio_err);
1848                                 goto end;
1849                                 }
1850                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1851                         }
1852                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1853                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1854                 if (exc) ssl_ctx_set_excert(ctx2, exc);
1855                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1856                  * Setting read ahead solves this problem.
1857                  */
1858                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1859
1860                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1861
1862                 if (no_cache)
1863                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1864                 else if (ext_cache)
1865                         init_session_cache_ctx(ctx2);
1866                 else
1867                         SSL_CTX_sess_set_cache_size(ctx2,128);
1868
1869                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1870                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1871                         {
1872                         ERR_print_errors(bio_err);
1873                         }
1874                 if (vpm)
1875                         SSL_CTX_set1_param(ctx2, vpm);
1876
1877                 ssl_ctx_add_crls(ctx2, crls, 0);
1878
1879                 if (!args_ssl_call(ctx2, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1880                         goto end;
1881
1882                 }
1883
1884 # ifndef OPENSSL_NO_NEXTPROTONEG
1885         if (next_proto.data)
1886                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1887 # endif
1888         if (alpn_ctx.data)
1889                 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1890 #endif
1891
1892 #ifndef OPENSSL_NO_DH
1893         if (!no_dhe)
1894                 {
1895                 DH *dh=NULL;
1896
1897                 if (dhfile)
1898                         dh = load_dh_param(dhfile);
1899                 else if (s_cert_file)
1900                         dh = load_dh_param(s_cert_file);
1901
1902                 if (dh != NULL)
1903                         {
1904                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1905                         }
1906                 else
1907                         {
1908                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1909                         dh=get_dh512();
1910                         }
1911                 (void)BIO_flush(bio_s_out);
1912
1913                 SSL_CTX_set_tmp_dh(ctx,dh);
1914 #ifndef OPENSSL_NO_TLSEXT
1915                 if (ctx2)
1916                         {
1917                         if (!dhfile)
1918                                 {
1919                                 DH *dh2=load_dh_param(s_cert_file2);
1920                                 if (dh2 != NULL)
1921                                         {
1922                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1923                                         (void)BIO_flush(bio_s_out);
1924
1925                                         DH_free(dh);
1926                                         dh = dh2;
1927                                         }
1928                                 }
1929                         SSL_CTX_set_tmp_dh(ctx2,dh);
1930                         }
1931 #endif
1932                 DH_free(dh);
1933                 }
1934 #endif
1935
1936         if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1937                 goto end;
1938 #ifndef OPENSSL_NO_TLSEXT
1939         if (s_serverinfo_file != NULL
1940             && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file))
1941                 {
1942                 ERR_print_errors(bio_err);
1943                 goto end;
1944                 }
1945 #endif
1946 #ifndef OPENSSL_NO_TLSEXT
1947         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2, NULL, build_chain))
1948                 goto end;
1949 #endif
1950         if (s_dcert != NULL)
1951                 {
1952                 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
1953                         goto end;
1954                 }
1955
1956 #ifndef OPENSSL_NO_RSA
1957 #if 1
1958         if (!no_tmp_rsa)
1959                 {
1960                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1961 #ifndef OPENSSL_NO_TLSEXT
1962                 if (ctx2)
1963                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1964 #endif
1965                 }
1966 #else
1967         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1968                 {
1969                 RSA *rsa;
1970
1971                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1972                 BIO_flush(bio_s_out);
1973
1974                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1975
1976                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1977                         {
1978                         ERR_print_errors(bio_err);
1979                         goto end;
1980                         }
1981 #ifndef OPENSSL_NO_TLSEXT
1982                         if (ctx2)
1983                                 {
1984                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1985                                         {
1986                                         ERR_print_errors(bio_err);
1987                                         goto end;
1988                                         }
1989                                 }
1990 #endif
1991                 RSA_free(rsa);
1992                 BIO_printf(bio_s_out,"\n");
1993                 }
1994 #endif
1995 #endif
1996
1997 #ifndef OPENSSL_NO_PSK
1998 #ifdef OPENSSL_NO_JPAKE
1999         if (psk_key != NULL)
2000 #else
2001         if (psk_key != NULL || jpake_secret)
2002 #endif
2003                 {
2004                 if (s_debug)
2005                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
2006                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2007                 }
2008
2009         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
2010                 {
2011                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
2012                 ERR_print_errors(bio_err);
2013                 goto end;
2014                 }
2015 #endif
2016
2017         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
2018         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
2019                 sizeof s_server_session_id_context);
2020
2021         /* Set DTLS cookie generation and verification callbacks */
2022         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2023         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2024
2025 #ifndef OPENSSL_NO_TLSEXT
2026         if (ctx2)
2027                 {
2028                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
2029                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
2030                         sizeof s_server_session_id_context);
2031
2032                 tlsextcbp.biodebug = bio_s_out;
2033                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2034                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2035                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2036                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2037                 }
2038 #endif
2039
2040 #ifndef OPENSSL_NO_SRP
2041         if (srp_verifier_file != NULL)
2042                 {
2043                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
2044                 srp_callback_parm.user = NULL;
2045                 srp_callback_parm.login = NULL;
2046                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
2047                         {
2048                         BIO_printf(bio_err,
2049                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
2050                                    srp_verifier_file, ret);
2051                                 goto end;
2052                         }
2053                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
2054                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
2055                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
2056                 }
2057         else
2058 #endif
2059         if (CAfile != NULL)
2060                 {
2061                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
2062 #ifndef OPENSSL_NO_TLSEXT
2063                 if (ctx2)
2064                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
2065 #endif
2066                 }
2067
2068         BIO_printf(bio_s_out,"ACCEPT\n");
2069         (void)BIO_flush(bio_s_out);
2070         if (rev)
2071                 do_server(port,socket_type,&accept_socket,rev_body, context, naccept);
2072         else if (www)
2073                 do_server(port,socket_type,&accept_socket,www_body, context, naccept);
2074         else
2075                 do_server(port,socket_type,&accept_socket,sv_body, context, naccept);
2076         print_stats(bio_s_out,ctx);
2077         ret=0;
2078 end:
2079         if (ctx != NULL) SSL_CTX_free(ctx);
2080         if (s_cert)
2081                 X509_free(s_cert);
2082         if (crls)
2083                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2084         if (s_dcert)
2085                 X509_free(s_dcert);
2086         if (s_key)
2087                 EVP_PKEY_free(s_key);
2088         if (s_dkey)
2089                 EVP_PKEY_free(s_dkey);
2090         if (s_chain)
2091                 sk_X509_pop_free(s_chain, X509_free);
2092         if (s_dchain)
2093                 sk_X509_pop_free(s_dchain, X509_free);
2094         if (pass)
2095                 OPENSSL_free(pass);
2096         if (dpass)
2097                 OPENSSL_free(dpass);
2098         if (vpm)
2099                 X509_VERIFY_PARAM_free(vpm);
2100         free_sessions();
2101 #ifndef OPENSSL_NO_TLSEXT
2102         if (tlscstatp.host)
2103                 OPENSSL_free(tlscstatp.host);
2104         if (tlscstatp.port)
2105                 OPENSSL_free(tlscstatp.port);
2106         if (tlscstatp.path)
2107                 OPENSSL_free(tlscstatp.path);
2108         if (ctx2 != NULL) SSL_CTX_free(ctx2);
2109         if (s_cert2)
2110                 X509_free(s_cert2);
2111         if (s_key2)
2112                 EVP_PKEY_free(s_key2);
2113         if (serverinfo_in != NULL)
2114                 BIO_free(serverinfo_in);
2115 # ifndef OPENSSL_NO_NEXTPROTONEG
2116         if (next_proto.data)
2117                 OPENSSL_free(next_proto.data);
2118 # endif
2119         if (alpn_ctx.data)
2120                 OPENSSL_free(alpn_ctx.data);
2121 #endif
2122         ssl_excert_free(exc);
2123         if (ssl_args)
2124                 sk_OPENSSL_STRING_free(ssl_args);
2125         if (cctx)
2126                 SSL_CONF_CTX_free(cctx);
2127 #ifndef OPENSSL_NO_JPAKE
2128         if (jpake_secret && psk_key)
2129                 OPENSSL_free(psk_key);
2130 #endif
2131         if (bio_s_out != NULL)
2132                 {
2133                 BIO_free(bio_s_out);
2134                 bio_s_out=NULL;
2135                 }
2136         if (bio_s_msg != NULL)
2137                 {
2138                 BIO_free(bio_s_msg);
2139                 bio_s_msg = NULL;
2140                 }
2141         apps_shutdown();
2142         OPENSSL_EXIT(ret);
2143         }
2144
2145 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2146         {
2147         BIO_printf(bio,"%4ld items in the session cache\n",
2148                 SSL_CTX_sess_number(ssl_ctx));
2149         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
2150                 SSL_CTX_sess_connect(ssl_ctx));
2151         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
2152                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2153         BIO_printf(bio,"%4ld client connects that finished\n",
2154                 SSL_CTX_sess_connect_good(ssl_ctx));
2155         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
2156                 SSL_CTX_sess_accept(ssl_ctx));
2157         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
2158                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2159         BIO_printf(bio,"%4ld server accepts that finished\n",
2160                 SSL_CTX_sess_accept_good(ssl_ctx));
2161         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
2162         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
2163         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
2164         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
2165         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
2166                 SSL_CTX_sess_cache_full(ssl_ctx),
2167                 SSL_CTX_sess_get_cache_size(ssl_ctx));
2168         }
2169
2170 static int sv_body(char *hostname, int s, int stype, unsigned char *context)
2171         {
2172         char *buf=NULL;
2173         fd_set readfds;
2174         int ret=1,width;
2175         int k,i;
2176         unsigned long l;
2177         SSL *con=NULL;
2178         BIO *sbio;
2179 #ifndef OPENSSL_NO_KRB5
2180         KSSL_CTX *kctx;
2181 #endif
2182         struct timeval timeout;
2183 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2184         struct timeval tv;
2185 #else
2186         struct timeval *timeoutp;
2187 #endif
2188
2189         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
2190                 {
2191                 BIO_printf(bio_err,"out of memory\n");
2192                 goto err;
2193                 }
2194 #ifdef FIONBIO
2195         if (s_nbio)
2196                 {
2197                 unsigned long sl=1;
2198
2199                 if (!s_quiet)
2200                         BIO_printf(bio_err,"turning on non blocking io\n");
2201                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2202                         ERR_print_errors(bio_err);
2203                 }
2204 #endif
2205
2206         if (con == NULL) {
2207                 con=SSL_new(ctx);
2208 #ifndef OPENSSL_NO_TLSEXT
2209         if (s_tlsextdebug)
2210                 {
2211                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2212                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2213                 }
2214         if (s_tlsextstatus)
2215                 {
2216                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2217                 tlscstatp.err = bio_err;
2218                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2219                 }
2220 #endif
2221 #ifndef OPENSSL_NO_KRB5
2222                 if ((kctx = kssl_ctx_new()) != NULL)
2223                         {
2224                         SSL_set0_kssl_ctx(con, kctx);
2225                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2226                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2227                         }
2228 #endif  /* OPENSSL_NO_KRB5 */
2229                 if(context)
2230                       SSL_set_session_id_context(con, context,
2231                                                  strlen((char *)context));
2232         }
2233         SSL_clear(con);
2234 #if 0
2235 #ifdef TLSEXT_TYPE_opaque_prf_input
2236         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2237 #endif
2238 #endif
2239
2240         if (stype == SOCK_DGRAM)
2241                 {
2242
2243                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2244
2245                 if (enable_timeouts)
2246                         {
2247                         timeout.tv_sec = 0;
2248                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2249                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2250
2251                         timeout.tv_sec = 0;
2252                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2253                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2254                         }
2255
2256                 if (socket_mtu > 28)
2257                         {
2258                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2259                         SSL_set_mtu(con, socket_mtu - 28);
2260                         }
2261                 else
2262                         /* want to do MTU discovery */
2263                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2264
2265         /* turn on cookie exchange */
2266         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2267                 }
2268         else
2269                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2270
2271         if (s_nbio_test)
2272                 {
2273                 BIO *test;
2274
2275                 test=BIO_new(BIO_f_nbio_test());
2276                 sbio=BIO_push(test,sbio);
2277                 }
2278 #ifndef OPENSSL_NO_JPAKE
2279         if(jpake_secret)
2280                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2281 #endif
2282
2283         SSL_set_bio(con,sbio,sbio);
2284         SSL_set_accept_state(con);
2285         /* SSL_set_fd(con,s); */
2286
2287         if (s_debug)
2288                 {
2289                 SSL_set_debug(con, 1);
2290                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2291                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2292                 }
2293         if (s_msg)
2294                 {
2295 #ifndef OPENSSL_NO_SSL_TRACE
2296                 if (s_msg == 2)
2297                         SSL_set_msg_callback(con, SSL_trace);
2298                 else
2299 #endif
2300                         SSL_set_msg_callback(con, msg_cb);
2301                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2302                 }
2303 #ifndef OPENSSL_NO_TLSEXT
2304         if (s_tlsextdebug)
2305                 {
2306                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2307                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2308                 }
2309 #endif
2310
2311         width=s+1;
2312         for (;;)
2313                 {
2314                 int read_from_terminal;
2315                 int read_from_sslcon;
2316
2317                 read_from_terminal = 0;
2318                 read_from_sslcon = SSL_pending(con);
2319
2320                 if (!read_from_sslcon)
2321                         {
2322                         FD_ZERO(&readfds);
2323 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2324                         openssl_fdset(fileno(stdin),&readfds);
2325 #endif
2326                         openssl_fdset(s,&readfds);
2327                         /* Note: under VMS with SOCKETSHR the second parameter is
2328                          * currently of type (int *) whereas under other systems
2329                          * it is (void *) if you don't have a cast it will choke
2330                          * the compiler: if you do have a cast then you can either
2331                          * go for (int *) or (void *).
2332                          */
2333 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2334                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2335                          * on sockets. As a workaround we timeout the select every
2336                          * second and check for any keypress. In a proper Windows
2337                          * application we wouldn't do this because it is inefficient.
2338                          */
2339                         tv.tv_sec = 1;
2340                         tv.tv_usec = 0;
2341                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2342                         if((i < 0) || (!i && !_kbhit() ) )continue;
2343                         if(_kbhit())
2344                                 read_from_terminal = 1;
2345 #elif defined(OPENSSL_SYS_BEOS_R5)
2346                         /* Under BeOS-R5 the situation is similar to DOS */
2347                         tv.tv_sec = 1;
2348                         tv.tv_usec = 0;
2349                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2350                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2351                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2352                                 continue;
2353                         if (read(fileno(stdin), buf, 0) >= 0)
2354                                 read_from_terminal = 1;
2355                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2356 #else
2357                         if ((SSL_version(con) == DTLS1_VERSION) &&
2358                                 DTLSv1_get_timeout(con, &timeout))
2359                                 timeoutp = &timeout;
2360                         else
2361                                 timeoutp = NULL;
2362
2363                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2364
2365                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2366                                 {
2367                                 BIO_printf(bio_err,"TIMEOUT occured\n");
2368                                 }
2369
2370                         if (i <= 0) continue;
2371                         if (FD_ISSET(fileno(stdin),&readfds))
2372                                 read_from_terminal = 1;
2373 #endif
2374                         if (FD_ISSET(s,&readfds))
2375                                 read_from_sslcon = 1;
2376                         }
2377                 if (read_from_terminal)
2378                         {
2379                         if (s_crlf)
2380                                 {
2381                                 int j, lf_num;
2382
2383                                 i=raw_read_stdin(buf, bufsize/2);
2384                                 lf_num = 0;
2385                                 /* both loops are skipped when i <= 0 */
2386                                 for (j = 0; j < i; j++)
2387                                         if (buf[j] == '\n')
2388                                                 lf_num++;
2389                                 for (j = i-1; j >= 0; j--)
2390                                         {
2391                                         buf[j+lf_num] = buf[j];
2392                                         if (buf[j] == '\n')
2393                                                 {
2394                                                 lf_num--;
2395                                                 i++;
2396                                                 buf[j+lf_num] = '\r';
2397                                                 }
2398                                         }
2399                                 assert(lf_num == 0);
2400                                 }
2401                         else
2402                                 i=raw_read_stdin(buf,bufsize);
2403                         if (!s_quiet && !s_brief)
2404                                 {
2405                                 if ((i <= 0) || (buf[0] == 'Q'))
2406                                         {
2407                                         BIO_printf(bio_s_out,"DONE\n");
2408                                         SHUTDOWN(s);
2409                                         close_accept_socket();
2410                                         ret= -11;
2411                                         goto err;
2412                                         }
2413                                 if ((i <= 0) || (buf[0] == 'q'))
2414                                         {
2415                                         BIO_printf(bio_s_out,"DONE\n");
2416                                         if (SSL_version(con) != DTLS1_VERSION)
2417                         SHUTDOWN(s);
2418         /*                              close_accept_socket();
2419                                         ret= -11;*/
2420                                         goto err;
2421                                         }
2422
2423 #ifndef OPENSSL_NO_HEARTBEATS
2424                                 if ((buf[0] == 'B') &&
2425                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2426                                         {
2427                                         BIO_printf(bio_err,"HEARTBEATING\n");
2428                                         SSL_heartbeat(con);
2429                                         i=0;
2430                                         continue;
2431                                         }
2432 #endif
2433                                 if ((buf[0] == 'r') &&
2434                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2435                                         {
2436                                         SSL_renegotiate(con);
2437                                         i=SSL_do_handshake(con);
2438                                         printf("SSL_do_handshake -> %d\n",i);
2439                                         i=0; /*13; */
2440                                         continue;
2441                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2442                                         }
2443                                 if ((buf[0] == 'R') &&
2444                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2445                                         {
2446                                         SSL_set_verify(con,
2447                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2448                                         SSL_renegotiate(con);
2449                                         i=SSL_do_handshake(con);
2450                                         printf("SSL_do_handshake -> %d\n",i);
2451                                         i=0; /* 13; */
2452                                         continue;
2453                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2454                                         }
2455                                 if (buf[0] == 'P')
2456                                         {
2457                                         static const char *str="Lets print some clear text\n";
2458                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2459                                         }
2460                                 if (buf[0] == 'S')
2461                                         {
2462                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2463                                         }
2464                                 }
2465 #ifdef CHARSET_EBCDIC
2466                         ebcdic2ascii(buf,buf,i);
2467 #endif
2468                         l=k=0;
2469                         for (;;)
2470                                 {
2471                                 /* should do a select for the write */
2472 #ifdef RENEG
2473 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2474 #endif
2475                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2476 #ifndef OPENSSL_NO_SRP
2477                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2478                                         {
2479                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2480                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2481                                         if (srp_callback_parm.user)
2482                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2483                                         else
2484                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2485                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2486                                         }
2487 #endif
2488                                 switch (SSL_get_error(con,k))
2489                                         {
2490                                 case SSL_ERROR_NONE:
2491                                         break;
2492                                 case SSL_ERROR_WANT_WRITE:
2493                                 case SSL_ERROR_WANT_READ:
2494                                 case SSL_ERROR_WANT_X509_LOOKUP:
2495                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2496                                         break;
2497                                 case SSL_ERROR_SYSCALL:
2498                                 case SSL_ERROR_SSL:
2499                                         BIO_printf(bio_s_out,"ERROR\n");
2500                                         ERR_print_errors(bio_err);
2501                                         ret=1;
2502                                         goto err;
2503                                         /* break; */
2504                                 case SSL_ERROR_ZERO_RETURN:
2505                                         BIO_printf(bio_s_out,"DONE\n");
2506                                         ret=1;
2507                                         goto err;
2508                                         }
2509                                 l+=k;
2510                                 i-=k;
2511                                 if (i <= 0) break;
2512                                 }
2513                         }
2514                 if (read_from_sslcon)
2515                         {
2516                         if (!SSL_is_init_finished(con))
2517                                 {
2518                                 i=init_ssl_connection(con);
2519
2520                                 if (i < 0)
2521                                         {
2522                                         ret=0;
2523                                         goto err;
2524                                         }
2525                                 else if (i == 0)
2526                                         {
2527                                         ret=1;
2528                                         goto err;
2529                                         }
2530                                 }
2531                         else
2532                                 {
2533 again:
2534                                 i=SSL_read(con,(char *)buf,bufsize);
2535 #ifndef OPENSSL_NO_SRP
2536                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2537                                         {
2538                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2539                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2540                                         if (srp_callback_parm.user)
2541                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2542                                         else
2543                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2544                                         i=SSL_read(con,(char *)buf,bufsize);
2545                                         }
2546 #endif
2547                                 switch (SSL_get_error(con,i))
2548                                         {
2549                                 case SSL_ERROR_NONE:
2550 #ifdef CHARSET_EBCDIC
2551                                         ascii2ebcdic(buf,buf,i);
2552 #endif
2553                                         raw_write_stdout(buf,
2554                                                 (unsigned int)i);
2555                                         if (SSL_pending(con)) goto again;
2556                                         break;
2557                                 case SSL_ERROR_WANT_WRITE:
2558                                 case SSL_ERROR_WANT_READ:
2559                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2560                                         break;
2561                                 case SSL_ERROR_SYSCALL:
2562                                 case SSL_ERROR_SSL:
2563                                         BIO_printf(bio_s_out,"ERROR\n");
2564                                         ERR_print_errors(bio_err);
2565                                         ret=1;
2566                                         goto err;
2567                                 case SSL_ERROR_ZERO_RETURN:
2568                                         BIO_printf(bio_s_out,"DONE\n");
2569                                         ret=1;
2570                                         goto err;
2571                                         }
2572                                 }
2573                         }
2574                 }
2575 err:
2576         if (con != NULL)
2577                 {
2578                 BIO_printf(bio_s_out,"shutting down SSL\n");
2579 #if 1
2580                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2581 #else
2582                 SSL_shutdown(con);
2583 #endif
2584                 SSL_free(con);
2585                 }
2586         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2587         if (buf != NULL)
2588                 {
2589                 OPENSSL_cleanse(buf,bufsize);
2590                 OPENSSL_free(buf);
2591                 }
2592         if (ret >= 0)
2593                 BIO_printf(bio_s_out,"ACCEPT\n");
2594         return(ret);
2595         }
2596
2597 static void close_accept_socket(void)
2598         {
2599         BIO_printf(bio_err,"shutdown accept socket\n");
2600         if (accept_socket >= 0)
2601                 {
2602                 SHUTDOWN2(accept_socket);
2603                 }
2604         }
2605
2606 static int init_ssl_connection(SSL *con)
2607         {
2608         int i;
2609         const char *str;
2610         X509 *peer;
2611         long verify_error;
2612         MS_STATIC char buf[BUFSIZ];
2613 #ifndef OPENSSL_NO_KRB5
2614         char *client_princ;
2615 #endif
2616 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2617         const unsigned char *next_proto_neg;
2618         unsigned next_proto_neg_len;
2619 #endif
2620         unsigned char *exportedkeymat;
2621
2622
2623         i=SSL_accept(con);
2624 #ifdef CERT_CB_TEST_RETRY
2625         {
2626         while (i <= 0 && SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP && SSL_state(con) == SSL3_ST_SR_CLNT_HELLO_C)
2627                 {
2628                 fprintf(stderr, "LOOKUP from certificate callback during accept\n");
2629                 i=SSL_accept(con);
2630                 }
2631         }
2632 #endif
2633 #ifndef OPENSSL_NO_SRP
2634         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2635                 {
2636                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2637                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2638                         if (srp_callback_parm.user)
2639                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2640                         else
2641                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2642                         i=SSL_accept(con);
2643                 }
2644 #endif
2645
2646         if (i <= 0)
2647                 {
2648                 if (BIO_sock_should_retry(i))
2649                         {
2650                         BIO_printf(bio_s_out,"DELAY\n");
2651                         return(1);
2652                         }
2653
2654                 BIO_printf(bio_err,"ERROR\n");
2655                 verify_error=SSL_get_verify_result(con);
2656                 if (verify_error != X509_V_OK)
2657                         {
2658                         BIO_printf(bio_err,"verify error:%s\n",
2659                                 X509_verify_cert_error_string(verify_error));
2660                         }
2661                 /* Always print any error messages */
2662                 ERR_print_errors(bio_err);
2663                 return(0);
2664                 }
2665
2666         if (s_brief)
2667                 print_ssl_summary(bio_err, con);
2668
2669         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2670
2671         peer=SSL_get_peer_certificate(con);
2672         if (peer != NULL)
2673                 {
2674                 BIO_printf(bio_s_out,"Client certificate\n");
2675                 PEM_write_bio_X509(bio_s_out,peer);
2676                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2677                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2678                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2679                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2680                 X509_free(peer);
2681                 }
2682
2683         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2684                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2685         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2686         ssl_print_sigalgs(bio_s_out, con);
2687 #ifndef OPENSSL_NO_EC
2688         ssl_print_point_formats(bio_s_out, con);
2689         ssl_print_curves(bio_s_out, con, 0);
2690 #endif
2691         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2692
2693 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2694         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2695         if (next_proto_neg)
2696                 {
2697                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2698                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2699                 BIO_printf(bio_s_out, "\n");
2700                 }
2701 #endif
2702         {
2703         SRTP_PROTECTION_PROFILE *srtp_profile
2704           = SSL_get_selected_srtp_profile(con);
2705
2706         if(srtp_profile)
2707                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2708                            srtp_profile->name);
2709         }
2710         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2711         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2712                 TLS1_FLAGS_TLS_PADDING_BUG)
2713                 BIO_printf(bio_s_out,
2714                            "Peer has incorrect TLSv1 block padding\n");
2715 #ifndef OPENSSL_NO_KRB5
2716         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2717         if (client_princ != NULL)
2718                 {
2719                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2720                                                                 client_princ);
2721                 }
2722 #endif /* OPENSSL_NO_KRB5 */
2723         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2724                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2725         if (keymatexportlabel != NULL)
2726                 {
2727                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2728                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2729                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2730                            keymatexportlen);
2731                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2732                 if (exportedkeymat != NULL)
2733                         {
2734                         if (!SSL_export_keying_material(con, exportedkeymat,
2735                                                         keymatexportlen,
2736                                                         keymatexportlabel,
2737                                                         strlen(keymatexportlabel),
2738                                                         NULL, 0, 0))
2739                                 {
2740                                 BIO_printf(bio_s_out, "    Error\n");
2741                                 }
2742                         else
2743                                 {
2744                                 BIO_printf(bio_s_out, "    Keying material: ");
2745                                 for (i=0; i<keymatexportlen; i++)
2746                                         BIO_printf(bio_s_out, "%02X",
2747                                                    exportedkeymat[i]);
2748                                 BIO_printf(bio_s_out, "\n");
2749                                 }
2750                         OPENSSL_free(exportedkeymat);
2751                         }
2752                 }
2753
2754         return(1);
2755         }
2756
2757 #ifndef OPENSSL_NO_DH
2758 static DH *load_dh_param(const char *dhfile)
2759         {
2760         DH *ret=NULL;
2761         BIO *bio;
2762
2763         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2764                 goto err;
2765         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2766 err:
2767         if (bio != NULL) BIO_free(bio);
2768         return(ret);
2769         }
2770 #endif
2771 #ifndef OPENSSL_NO_KRB5
2772         char *client_princ;
2773 #endif
2774
2775 #if 0
2776 static int load_CA(SSL_CTX *ctx, char *file)
2777         {
2778         FILE *in;
2779         X509 *x=NULL;
2780
2781         if ((in=fopen(file,"r")) == NULL)
2782                 return(0);
2783
2784         for (;;)
2785                 {
2786                 if (PEM_read_X509(in,&x,NULL) == NULL)
2787                         break;
2788                 SSL_CTX_add_client_CA(ctx,x);
2789                 }
2790         if (x != NULL) X509_free(x);
2791         fclose(in);
2792         return(1);
2793         }
2794 #endif
2795
2796 static int www_body(char *hostname, int s, int stype, unsigned char *context)
2797         {
2798         char *buf=NULL;
2799         int ret=1;
2800         int i,j,k,dot;
2801         SSL *con;
2802         const SSL_CIPHER *c;
2803         BIO *io,*ssl_bio,*sbio;
2804 #ifndef OPENSSL_NO_KRB5
2805         KSSL_CTX *kctx;
2806 #endif
2807
2808         buf=OPENSSL_malloc(bufsize);
2809         if (buf == NULL) return(0);
2810         io=BIO_new(BIO_f_buffer());
2811         ssl_bio=BIO_new(BIO_f_ssl());
2812         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2813
2814 #ifdef FIONBIO
2815         if (s_nbio)
2816                 {
2817                 unsigned long sl=1;
2818
2819                 if (!s_quiet)
2820                         BIO_printf(bio_err,"turning on non blocking io\n");
2821                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2822                         ERR_print_errors(bio_err);
2823                 }
2824 #endif
2825
2826         /* lets make the output buffer a reasonable size */
2827         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2828
2829         if ((con=SSL_new(ctx)) == NULL) goto err;
2830 #ifndef OPENSSL_NO_TLSEXT
2831                 if (s_tlsextdebug)
2832                         {
2833                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2834                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2835                         }
2836 #endif
2837 #ifndef OPENSSL_NO_KRB5
2838         if ((kctx = kssl_ctx_new()) != NULL)
2839                 {
2840                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2841                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2842                 }
2843 #endif  /* OPENSSL_NO_KRB5 */
2844         if(context) SSL_set_session_id_context(con, context,
2845                                                strlen((char *)context));
2846
2847         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2848         if (s_nbio_test)
2849                 {
2850                 BIO *test;
2851
2852                 test=BIO_new(BIO_f_nbio_test());
2853                 sbio=BIO_push(test,sbio);
2854                 }
2855         SSL_set_bio(con,sbio,sbio);
2856         SSL_set_accept_state(con);
2857
2858         /* SSL_set_fd(con,s); */
2859         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2860         BIO_push(io,ssl_bio);
2861 #ifdef CHARSET_EBCDIC
2862         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2863 #endif
2864
2865         if (s_debug)
2866                 {
2867                 SSL_set_debug(con, 1);
2868                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2869                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2870                 }
2871         if (s_msg)
2872                 {
2873 #ifndef OPENSSL_NO_SSL_TRACE
2874                 if (s_msg == 2)
2875                         SSL_set_msg_callback(con, SSL_trace);
2876                 else
2877 #endif
2878                         SSL_set_msg_callback(con, msg_cb);
2879                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2880                 }
2881
2882         for (;;)
2883                 {
2884                 if (hack)
2885                         {
2886                         i=SSL_accept(con);
2887 #ifndef OPENSSL_NO_SRP
2888                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2889                 {
2890                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2891                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2892                         if (srp_callback_parm.user)
2893                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2894                         else
2895                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2896                         i=SSL_accept(con);
2897                 }
2898 #endif
2899                         switch (SSL_get_error(con,i))
2900                                 {
2901                         case SSL_ERROR_NONE:
2902                                 break;
2903                         case SSL_ERROR_WANT_WRITE:
2904                         case SSL_ERROR_WANT_READ:
2905                         case SSL_ERROR_WANT_X509_LOOKUP:
2906                                 continue;
2907                         case SSL_ERROR_SYSCALL:
2908                         case SSL_ERROR_SSL:
2909                         case SSL_ERROR_ZERO_RETURN:
2910                                 ret=1;
2911                                 goto err;
2912                                 /* break; */
2913                                 }
2914
2915                         SSL_renegotiate(con);
2916                         SSL_write(con,NULL,0);
2917                         }
2918
2919                 i=BIO_gets(io,buf,bufsize-1);
2920                 if (i < 0) /* error */
2921                         {
2922                         if (!BIO_should_retry(io))
2923                                 {
2924                                 if (!s_quiet)
2925                                         ERR_print_errors(bio_err);
2926                                 goto err;
2927                                 }
2928                         else
2929                                 {
2930                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2931 #if defined(OPENSSL_SYS_NETWARE)
2932             delay(1000);
2933 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2934                                 sleep(1);
2935 #endif
2936                                 continue;
2937                                 }
2938                         }
2939                 else if (i == 0) /* end of input */
2940                         {
2941                         ret=1;
2942                         goto end;
2943                         }
2944
2945                 /* else we have data */
2946                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2947                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2948                         {
2949                         char *p;
2950                         X509 *peer;
2951                         STACK_OF(SSL_CIPHER) *sk;
2952                         static const char *space="                          ";
2953
2954                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2955                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2956                         BIO_puts(io,"<pre>\n");
2957 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2958                         BIO_puts(io,"\n");
2959                         for (i=0; i<local_argc; i++)
2960                                 {
2961                                 BIO_puts(io,local_argv[i]);
2962                                 BIO_write(io," ",1);
2963                                 }
2964                         BIO_puts(io,"\n");
2965
2966                         BIO_printf(io,
2967                                 "Secure Renegotiation IS%s supported\n",
2968                                 SSL_get_secure_renegotiation_support(con) ?
2969                                                         "" : " NOT");
2970
2971                         /* The following is evil and should not really
2972                          * be done */
2973                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2974                         sk=SSL_get_ciphers(con);
2975                         j=sk_SSL_CIPHER_num(sk);
2976                         for (i=0; i<j; i++)
2977                                 {
2978                                 c=sk_SSL_CIPHER_value(sk,i);
2979                                 BIO_printf(io,"%-11s:%-25s",
2980                                         SSL_CIPHER_get_version(c),
2981                                         SSL_CIPHER_get_name(c));
2982                                 if ((((i+1)%2) == 0) && (i+1 != j))
2983                                         BIO_puts(io,"\n");
2984                                 }
2985                         BIO_puts(io,"\n");
2986                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2987                         if (p != NULL)
2988                                 {
2989                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2990                                 j=i=0;
2991                                 while (*p)
2992                                         {
2993                                         if (*p == ':')
2994                                                 {
2995                                                 BIO_write(io,space,26-j);
2996                                                 i++;
2997                                                 j=0;
2998                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2999                                                 }
3000                                         else
3001                                                 {
3002                                                 BIO_write(io,p,1);
3003                                                 j++;
3004                                                 }
3005                                         p++;
3006                                         }
3007                                 BIO_puts(io,"\n");
3008                                 }
3009                         ssl_print_sigalgs(io, con);
3010 #ifndef OPENSSL_NO_EC
3011                         ssl_print_curves(io, con, 0);
3012 #endif
3013                         BIO_printf(io,(SSL_cache_hit(con)
3014                                 ?"---\nReused, "
3015                                 :"---\nNew, "));
3016                         c=SSL_get_current_cipher(con);
3017                         BIO_printf(io,"%s, Cipher is %s\n",
3018                                 SSL_CIPHER_get_version(c),
3019                                 SSL_CIPHER_get_name(c));
3020                         SSL_SESSION_print(io,SSL_get_session(con));
3021                         BIO_printf(io,"---\n");
3022                         print_stats(io,SSL_get_SSL_CTX(con));
3023                         BIO_printf(io,"---\n");
3024                         peer=SSL_get_peer_certificate(con);
3025                         if (peer != NULL)
3026                                 {
3027                                 BIO_printf(io,"Client certificate\n");
3028                                 X509_print(io,peer);
3029                                 PEM_write_bio_X509(io,peer);
3030                                 }
3031                         else
3032                                 BIO_puts(io,"no client certificate available\n");
3033                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
3034                         break;
3035                         }
3036                 else if ((www == 2 || www == 3)
3037                          && (strncmp("GET /",buf,5) == 0))
3038                         {
3039                         BIO *file;
3040                         char *p,*e;
3041                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3042
3043                         /* skip the '/' */
3044                         p= &(buf[5]);
3045
3046                         dot = 1;
3047                         for (e=p; *e != '\0'; e++)
3048                                 {
3049                                 if (e[0] == ' ')
3050                                         break;
3051
3052                                 switch (dot)
3053                                         {
3054                                 case 1:
3055                                         dot = (e[0] == '.') ? 2 : 0;
3056                                         break;
3057                                 case 2:
3058                                         dot = (e[0] == '.') ? 3 : 0;
3059                                         break;
3060                                 case 3:
3061                                         dot = (e[0] == '/') ? -1 : 0;
3062                                         break;
3063                                         }
3064                                 if (dot == 0)
3065                                         dot = (e[0] == '/') ? 1 : 0;
3066                                 }
3067                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
3068
3069                         if (*e == '\0')
3070                                 {
3071                                 BIO_puts(io,text);
3072                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
3073                                 break;
3074                                 }
3075                         *e='\0';
3076
3077                         if (dot)
3078                                 {
3079                                 BIO_puts(io,text);
3080                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
3081                                 break;
3082                                 }
3083
3084                         if (*p == '/')
3085                                 {
3086                                 BIO_puts(io,text);
3087                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
3088                                 break;
3089                                 }
3090
3091 #if 0
3092                         /* append if a directory lookup */
3093                         if (e[-1] == '/')
3094                                 strcat(p,"index.html");
3095 #endif
3096
3097                         /* if a directory, do the index thang */
3098                         if (app_isdir(p)>0)
3099                                 {
3100 #if 0 /* must check buffer size */
3101                                 strcat(p,"/index.html");
3102 #else
3103                                 BIO_puts(io,text);
3104                                 BIO_printf(io,"'%s' is a directory\r\n",p);
3105                                 break;
3106 #endif
3107                                 }
3108
3109                         if ((file=BIO_new_file(p,"r")) == NULL)
3110                                 {
3111                                 BIO_puts(io,text);
3112                                 BIO_printf(io,"Error opening '%s'\r\n",p);
3113                                 ERR_print_errors(io);
3114                                 break;
3115                                 }
3116
3117                         if (!s_quiet)
3118                                 BIO_printf(bio_err,"FILE:%s\n",p);
3119
3120                         if (www == 2)
3121                                 {
3122                                 i=strlen(p);
3123                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
3124                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
3125                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
3126                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3127                                 else
3128                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3129                                 }
3130                         /* send the file */
3131                         for (;;)
3132                                 {
3133                                 i=BIO_read(file,buf,bufsize);
3134                                 if (i <= 0) break;
3135
3136 #ifdef RENEG
3137                                 total_bytes+=i;
3138                                 fprintf(stderr,"%d\n",i);
3139                                 if (total_bytes > 3*1024)
3140                                         {
3141                                         total_bytes=0;
3142                                         fprintf(stderr,"RENEGOTIATE\n");
3143                                         SSL_renegotiate(con);
3144                                         }
3145 #endif
3146
3147                                 for (j=0; j<i; )
3148                                         {
3149 #ifdef RENEG
3150 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
3151 #endif
3152                                         k=BIO_write(io,&(buf[j]),i-j);
3153                                         if (k <= 0)
3154                                                 {
3155                                                 if (!BIO_should_retry(io))
3156                                                         goto write_error;
3157                                                 else
3158                                                         {
3159                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
3160                                                         }
3161                                                 }
3162                                         else
3163                                                 {
3164                                                 j+=k;
3165                                                 }
3166                                         }
3167                                 }
3168 write_error:
3169                         BIO_free(file);
3170                         break;
3171                         }
3172                 }
3173
3174         for (;;)
3175                 {
3176                 i=(int)BIO_flush(io);
3177                 if (i <= 0)
3178                         {
3179                         if (!BIO_should_retry(io))
3180                                 break;
3181                         }
3182                 else
3183                         break;
3184                 }
3185 end:
3186 #if 1
3187         /* make sure we re-use sessions */
3188         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3189 #else
3190         /* This kills performance */
3191 /*      SSL_shutdown(con); A shutdown gets sent in the
3192  *      BIO_free_all(io) procession */
3193 #endif
3194
3195 err:
3196
3197         if (ret >= 0)
3198                 BIO_printf(bio_s_out,"ACCEPT\n");
3199
3200         if (buf != NULL) OPENSSL_free(buf);
3201         if (io != NULL) BIO_free_all(io);
3202 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3203         return(ret);
3204         }
3205
3206 static int rev_body(char *hostname, int s, int stype, unsigned char *context)
3207         {
3208         char *buf=NULL;
3209         int i;
3210         int ret=1;
3211         SSL *con;
3212         BIO *io,*ssl_bio,*sbio;
3213 #ifndef OPENSSL_NO_KRB5
3214         KSSL_CTX *kctx;
3215 #endif
3216
3217         buf=OPENSSL_malloc(bufsize);
3218         if (buf == NULL) return(0);
3219         io=BIO_new(BIO_f_buffer());
3220         ssl_bio=BIO_new(BIO_f_ssl());
3221         if ((io == NULL) || (ssl_bio == NULL)) goto err;
3222
3223         /* lets make the output buffer a reasonable size */
3224         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
3225
3226         if ((con=SSL_new(ctx)) == NULL) goto err;
3227 #ifndef OPENSSL_NO_TLSEXT
3228         if (s_tlsextdebug)
3229                 {
3230                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3231                 SSL_set_tlsext_debug_arg(con, bio_s_out);
3232                 }
3233 #endif
3234 #ifndef OPENSSL_NO_KRB5
3235         if ((kctx = kssl_ctx_new()) != NULL)
3236                 {
3237                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
3238                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
3239                 }
3240 #endif  /* OPENSSL_NO_KRB5 */
3241         if(context) SSL_set_session_id_context(con, context,
3242                                                strlen((char *)context));
3243
3244         sbio=BIO_new_socket(s,BIO_NOCLOSE);
3245         SSL_set_bio(con,sbio,sbio);
3246         SSL_set_accept_state(con);
3247
3248         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
3249         BIO_push(io,ssl_bio);
3250 #ifdef CHARSET_EBCDIC
3251         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
3252 #endif
3253
3254         if (s_debug)
3255                 {
3256                 SSL_set_debug(con, 1);
3257                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
3258                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
3259                 }
3260         if (s_msg)
3261                 {
3262 #ifndef OPENSSL_NO_SSL_TRACE
3263                 if (s_msg == 2)
3264                         SSL_set_msg_callback(con, SSL_trace);
3265                 else
3266 #endif
3267                         SSL_set_msg_callback(con, msg_cb);
3268                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3269                 }
3270
3271         for (;;)
3272                 {
3273                 i = BIO_do_handshake(io);
3274                 if (i > 0)
3275                         break;
3276                 if (!BIO_should_retry(io))
3277                         {
3278                         BIO_puts(bio_err, "CONNECTION FAILURE\n");
3279                         ERR_print_errors(bio_err);
3280                         goto end;
3281                         }
3282                 }
3283         BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3284         print_ssl_summary(bio_err, con);
3285
3286         for (;;)
3287                 {
3288                 i=BIO_gets(io,buf,bufsize-1);
3289                 if (i < 0) /* error */
3290                         {
3291                         if (!BIO_should_retry(io))
3292                                 {
3293                                 if (!s_quiet)
3294                                         ERR_print_errors(bio_err);
3295                                 goto err;
3296                                 }
3297                         else
3298                                 {
3299                                 BIO_printf(bio_s_out,"read R BLOCK\n");
3300 #if defined(OPENSSL_SYS_NETWARE)
3301             delay(1000);
3302 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
3303                                 sleep(1);
3304 #endif
3305                                 continue;
3306                                 }
3307                         }
3308                 else if (i == 0) /* end of input */
3309                         {
3310                         ret=1;
3311                         BIO_printf(bio_err, "CONNECTION CLOSED\n");
3312                         goto end;
3313                         }
3314                 else
3315                         {
3316                         char *p = buf + i - 1;
3317                         while(i && (*p == '\n' || *p == '\r'))
3318                                 {
3319                                 p--;
3320                                 i--;
3321                                 }
3322                         if (!s_ign_eof && i == 5 && !strncmp(buf, "CLOSE", 5))
3323                                 {
3324                                 ret = 1;
3325                                 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3326                                 goto end;
3327                                 }
3328                         BUF_reverse((unsigned char *)buf, NULL, i);
3329                         buf[i] = '\n';
3330                         BIO_write(io, buf, i + 1);
3331                         for (;;)
3332                                 {
3333                                 i = BIO_flush(io);
3334                                 if (i > 0)
3335                                         break;
3336                                 if (!BIO_should_retry(io))
3337                                         goto end;
3338                                 }
3339                         }
3340                 }
3341 end:
3342         /* make sure we re-use sessions */
3343         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3344
3345 err:
3346
3347         if (buf != NULL) OPENSSL_free(buf);
3348         if (io != NULL) BIO_free_all(io);
3349         return(ret);
3350         }
3351
3352 #ifndef OPENSSL_NO_RSA
3353 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3354         {
3355         BIGNUM *bn = NULL;
3356         static RSA *rsa_tmp=NULL;
3357
3358         if (!rsa_tmp && ((bn = BN_new()) == NULL))
3359                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
3360         if (!rsa_tmp && bn)
3361                 {
3362                 if (!s_quiet)
3363                         {
3364                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
3365                         (void)BIO_flush(bio_err);
3366                         }
3367                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3368                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
3369                         {
3370                         if(rsa_tmp) RSA_free(rsa_tmp);
3371                         rsa_tmp = NULL;
3372                         }
3373                 if (!s_quiet)
3374                         {
3375                         BIO_printf(bio_err,"\n");
3376                         (void)BIO_flush(bio_err);
3377                         }
3378                 BN_free(bn);
3379                 }
3380         return(rsa_tmp);
3381         }
3382 #endif
3383
3384 #define MAX_SESSION_ID_ATTEMPTS 10
3385 static int generate_session_id(const SSL *ssl, unsigned char *id,
3386                                 unsigned int *id_len)
3387         {
3388         unsigned int count = 0;
3389         do      {
3390                 RAND_pseudo_bytes(id, *id_len);
3391                 /* Prefix the session_id with the required prefix. NB: If our
3392                  * prefix is too long, clip it - but there will be worse effects
3393                  * anyway, eg. the server could only possibly create 1 session
3394                  * ID (ie. the prefix!) so all future session negotiations will
3395                  * fail due to conflicts. */
3396                 memcpy(id, session_id_prefix,
3397                         (strlen(session_id_prefix) < *id_len) ?
3398                         strlen(session_id_prefix) : *id_len);
3399                 }
3400         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3401                 (++count < MAX_SESSION_ID_ATTEMPTS));
3402         if(count >= MAX_SESSION_ID_ATTEMPTS)
3403                 return 0;
3404         return 1;
3405         }
3406
3407 /* By default s_server uses an in-memory cache which caches SSL_SESSION
3408  * structures without any serialisation. This hides some bugs which only
3409  * become apparent in deployed servers. By implementing a basic external
3410  * session cache some issues can be debugged using s_server.
3411  */
3412
3413 typedef struct simple_ssl_session_st
3414         {
3415         unsigned char *id;
3416         unsigned int idlen;
3417         unsigned char *der;
3418         int derlen;
3419         struct simple_ssl_session_st *next;
3420         } simple_ssl_session;
3421
3422 static simple_ssl_session *first = NULL;
3423
3424 static int add_session(SSL *ssl, SSL_SESSION *session)
3425         {
3426         simple_ssl_session *sess;
3427         unsigned char *p;
3428
3429         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3430
3431         SSL_SESSION_get_id(session, &sess->idlen);
3432         sess->derlen = i2d_SSL_SESSION(session, NULL);
3433
3434         sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3435
3436         sess->der = OPENSSL_malloc(sess->derlen);
3437         p = sess->der;
3438         i2d_SSL_SESSION(session, &p);
3439
3440         sess->next = first;
3441         first = sess;
3442         BIO_printf(bio_err, "New session added to external cache\n");
3443         return 0;
3444         }
3445
3446 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3447                                         int *do_copy)
3448         {
3449         simple_ssl_session *sess;
3450         *do_copy = 0;
3451         for (sess = first; sess; sess = sess->next)
3452                 {
3453                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3454                         {
3455                         const unsigned char *p = sess->der;
3456                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3457                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3458                         }
3459                 }
3460         BIO_printf(bio_err, "Lookup session: cache miss\n");
3461         return NULL;
3462         }
3463
3464 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3465         {
3466         simple_ssl_session *sess, *prev = NULL;
3467         const unsigned char *id;
3468         unsigned int idlen;
3469         id = SSL_SESSION_get_id(session, &idlen);
3470         for (sess = first; sess; sess = sess->next)
3471                 {
3472                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
3473                         {
3474                         if(prev)
3475                                 prev->next = sess->next;
3476                         else
3477                                 first = sess->next;
3478                         OPENSSL_free(sess->id);
3479                         OPENSSL_free(sess->der);
3480                         OPENSSL_free(sess);
3481                         return;
3482                         }
3483                 prev = sess;
3484                 }
3485         }
3486
3487 static void init_session_cache_ctx(SSL_CTX *sctx)
3488         {
3489         SSL_CTX_set_session_cache_mode(sctx,
3490                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
3491         SSL_CTX_sess_set_new_cb(sctx, add_session);
3492         SSL_CTX_sess_set_get_cb(sctx, get_session);
3493         SSL_CTX_sess_set_remove_cb(sctx, del_session);
3494         }
3495
3496 static void free_sessions(void)
3497         {
3498         simple_ssl_session *sess, *tsess;
3499         for (sess = first; sess;)
3500                 {
3501                 OPENSSL_free(sess->id);
3502                 OPENSSL_free(sess->der);
3503                 tsess = sess;
3504                 sess = sess->next;
3505                 OPENSSL_free(tsess);
3506                 }
3507         first = NULL;
3508         }
3509