apps/s_server.c

   1 /* apps/s_server.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 113  * ECC cipher suite support in OpenSSL originally developed by
 114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 115  */
 116 /* ====================================================================
 117  * Copyright 2005 Nokia. All rights reserved.
 118  *
 119  * The portions of the attached software ("Contribution") is developed by
 120  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 121  * license.
 122  *
 123  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 124  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 125  * support (see RFC 4279) to OpenSSL.
 126  *
 127  * No patent licenses or other rights except those expressly stated in
 128  * the OpenSSL open source license shall be deemed granted or received
 129  * expressly, by implication, estoppel, or otherwise.
 130  *
 131  * No assurances are provided by Nokia that the Contribution does not
 132  * infringe the patent or other intellectual property rights of any third
 133  * party or that the license provides you with all the necessary rights
 134  * to make use of the Contribution.
 135  *
 136  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 137  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 138  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 139  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 140  * OTHERWISE.
 141  */
 142
 143 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
 144  * deprecated functions for openssl-internal code */
 145 #ifdef OPENSSL_NO_DEPRECATED
 146 #undef OPENSSL_NO_DEPRECATED
 147 #endif
 148
 149 #include <assert.h>
 150 #include <ctype.h>
 151 #include <stdio.h>
 152 #include <stdlib.h>
 153 #include <string.h>
 154
 155 #include <openssl/e_os2.h>
 156 #ifdef OPENSSL_NO_STDIO
 157 #define APPS_WIN16
 158 #endif
 159
 160 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
 161 #include <sys/types.h>
 162 #endif
 163
 164 /* With IPv6, it looks like Digital has mixed up the proper order of
 165    recursive header file inclusion, resulting in the compiler complaining
 166    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 167    is needed to have fileno() declared correctly...  So let's define u_int */
 168 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 169 #define __U_INT
 170 typedef unsigned int u_int;
 171 #endif
 172
 173 #include <openssl/lhash.h>
 174 #include <openssl/bn.h>
 175 #define USE_SOCKETS
 176 #include "apps.h"
 177 #include <openssl/err.h>
 178 #include <openssl/pem.h>
 179 #include <openssl/x509.h>
 180 #include <openssl/ssl.h>
 181 #include <openssl/rand.h>
 182 #include <openssl/ocsp.h>
 183 #ifndef OPENSSL_NO_DH
 184 #include <openssl/dh.h>
 185 #endif
 186 #ifndef OPENSSL_NO_RSA
 187 #include <openssl/rsa.h>
 188 #endif
 189 #ifndef OPENSSL_NO_SRP
 190 #include <openssl/srp.h>
 191 #endif
 192 #include "s_apps.h"
 193 #include "timeouts.h"
 194
 195 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 196 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 197 #undef FIONBIO
 198 #endif
 199
 200 #if defined(OPENSSL_SYS_BEOS_R5)
 201 #include <fcntl.h>
 202 #endif
 203
 204 #ifndef OPENSSL_NO_RSA
 205 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 206 #endif
 207 static int not_resumable_sess_cb(SSL *s, int is_forward_secure);
 208 static int sv_body(char *hostname, int s, unsigned char *context);
 209 static int www_body(char *hostname, int s, unsigned char *context);
 210 static void close_accept_socket(void );
 211 static void sv_usage(void);
 212 static int init_ssl_connection(SSL *s);
 213 static void print_stats(BIO *bp,SSL_CTX *ctx);
 214 static int generate_session_id(const SSL *ssl, unsigned char *id,
 215                                 unsigned int *id_len);
 216 static void init_session_cache_ctx(SSL_CTX *sctx);
 217 static void free_sessions(void);
 218 #ifndef OPENSSL_NO_DH
 219 static DH *load_dh_param(const char *dhfile);
 220 static DH *get_dh512(void);
 221 #endif
 222
 223 #ifdef MONOLITH
 224 static void s_server_init(void);
 225 #endif
 226
 227 #ifndef OPENSSL_NO_DH
 228 static unsigned char dh512_p[]={
 229         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 230         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 231         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 232         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 233         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 234         0x47,0x74,0xE8,0x33,
 235         };
 236 static unsigned char dh512_g[]={
 237         0x02,
 238         };
 239
 240 static DH *get_dh512(void)
 241         {
 242         DH *dh=NULL;
 243
 244         if ((dh=DH_new()) == NULL) return(NULL);
 245         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 246         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 247         if ((dh->p == NULL) || (dh->g == NULL))
 248                 return(NULL);
 249         return(dh);
 250         }
 251 #endif
 252
 253
 254 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 255
 256 #undef BUFSIZZ
 257 #define BUFSIZZ 16*1024
 258 static int bufsize=BUFSIZZ;
 259 static int accept_socket= -1;
 260
 261 #define TEST_CERT       "server.pem"
 262 #ifndef OPENSSL_NO_TLSEXT
 263 #define TEST_CERT2      "server2.pem"
 264 #endif
 265 #undef PROG
 266 #define PROG            s_server_main
 267
 268 extern int verify_depth, verify_return_error;
 269
 270 static char *cipher=NULL;
 271 static int s_server_verify=SSL_VERIFY_NONE;
 272 static int s_server_session_id_context = 1; /* anything will do */
 273 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 274 #ifndef OPENSSL_NO_TLSEXT
 275 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
 276 #endif
 277 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 278 #ifdef FIONBIO
 279 static int s_nbio=0;
 280 #endif
 281 static int s_nbio_test=0;
 282 int s_crlf=0;
 283 static SSL_CTX *ctx=NULL;
 284 #ifndef OPENSSL_NO_TLSEXT
 285 static SSL_CTX *ctx2=NULL;
 286 #endif
 287 static int www=0;
 288
 289 static BIO *bio_s_out=NULL;
 290 static int s_debug=0;
 291 #ifndef OPENSSL_NO_TLSEXT
 292 static int s_tlsextdebug=0;
 293 static int s_tlsextstatus=0;
 294 static int cert_status_cb(SSL *s, void *arg);
 295 #endif
 296 static int no_resume_ephemeral = 0;
 297 static int s_msg=0;
 298 static int s_quiet=0;
 299
 300 static char *keymatexportlabel=NULL;
 301 static int keymatexportlen=20;
 302
 303 static int hack=0;
 304 #ifndef OPENSSL_NO_ENGINE
 305 static char *engine_id=NULL;
 306 #endif
 307 static const char *session_id_prefix=NULL;
 308
 309 static int enable_timeouts = 0;
 310 static long socket_mtu;
 311 #ifndef OPENSSL_NO_DTLS1
 312 static int cert_chain = 0;
 313 #endif
 314
 315
 316 #ifndef OPENSSL_NO_PSK
 317 static char *psk_identity="Client_identity";
 318 char *psk_key=NULL; /* by default PSK is not used */
 319
 320 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
 321         unsigned char *psk, unsigned int max_psk_len)
 322         {
 323         unsigned int psk_len = 0;
 324         int ret;
 325         BIGNUM *bn = NULL;
 326
 327         if (s_debug)
 328                 BIO_printf(bio_s_out,"psk_server_cb\n");
 329         if (!identity)
 330                 {
 331                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
 332                 goto out_err;
 333                 }
 334         if (s_debug)
 335                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
 336                         identity ? (int)strlen(identity) : 0, identity);
 337
 338         /* here we could lookup the given identity e.g. from a database */
 339         if (strcmp(identity, psk_identity) != 0)
 340                 {
 341                 BIO_printf(bio_s_out, "PSK error: client identity not found"
 342                            " (got '%s' expected '%s')\n", identity,
 343                            psk_identity);
 344                 goto out_err;
 345                 }
 346         if (s_debug)
 347                 BIO_printf(bio_s_out, "PSK client identity found\n");
 348
 349         /* convert the PSK key to binary */
 350         ret = BN_hex2bn(&bn, psk_key);
 351         if (!ret)
 352                 {
 353                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 354                 if (bn)
 355                         BN_free(bn);
 356                 return 0;
 357                 }
 358         if (BN_num_bytes(bn) > (int)max_psk_len)
 359                 {
 360                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 361                         max_psk_len, BN_num_bytes(bn));
 362                 BN_free(bn);
 363                 return 0;
 364                 }
 365
 366         ret = BN_bn2bin(bn, psk);
 367         BN_free(bn);
 368
 369         if (ret < 0)
 370                 goto out_err;
 371         psk_len = (unsigned int)ret;
 372
 373         if (s_debug)
 374                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
 375         return psk_len;
 376  out_err:
 377         if (s_debug)
 378                 BIO_printf(bio_err, "Error in PSK server callback\n");
 379         return 0;
 380         }
 381 #endif
 382
 383 #ifndef OPENSSL_NO_SRP
 384 /* This is a context that we pass to callbacks */
 385 typedef struct srpsrvparm_st
 386         {
 387         int verbose;
 388         char *login;
 389         SRP_VBASE *vb;
 390         } srpsrvparm;
 391
 392 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
 393         {
 394         srpsrvparm *p = arg;
 395         SRP_user_pwd *user;
 396
 397         p->login = BUF_strdup(SSL_get_srp_username(s));
 398         BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
 399
 400         user = SRP_VBASE_get_by_user(p->vb, p->login);
 401         if (user == NULL)
 402                 {
 403                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
 404                 return SSL3_AL_FATAL;
 405                 }
 406         if (SSL_set_srp_server_param(s, user->N, user->g, user->s, user->v,
 407                                      user->info) < 0)
 408                 {
 409                 *ad = SSL_AD_INTERNAL_ERROR;
 410                 return SSL3_AL_FATAL;
 411                 }
 412         return SSL_ERROR_NONE;
 413         }
 414
 415 #endif
 416
 417 #ifdef MONOLITH
 418 static void s_server_init(void)
 419         {
 420         accept_socket=-1;
 421         cipher=NULL;
 422         s_server_verify=SSL_VERIFY_NONE;
 423         s_dcert_file=NULL;
 424         s_dkey_file=NULL;
 425         s_cert_file=TEST_CERT;
 426         s_key_file=NULL;
 427 #ifndef OPENSSL_NO_TLSEXT
 428         s_cert_file2=TEST_CERT2;
 429         s_key_file2=NULL;
 430         ctx2=NULL;
 431 #endif
 432 #ifdef FIONBIO
 433         s_nbio=0;
 434 #endif
 435         s_nbio_test=0;
 436         ctx=NULL;
 437         www=0;
 438
 439         bio_s_out=NULL;
 440         s_debug=0;
 441         s_msg=0;
 442         s_quiet=0;
 443         hack=0;
 444 #ifndef OPENSSL_NO_ENGINE
 445         engine_id=NULL;
 446 #endif
 447         }
 448 #endif
 449
 450 static void sv_usage(void)
 451         {
 452         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 453         BIO_printf(bio_err,"\n");
 454         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 455         BIO_printf(bio_err," -context arg  - set session ID context\n");
 456         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 457         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 458         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 459         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 460         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
 461                            "                 The CRL(s) are appended to the certificate file\n");
 462         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
 463                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
 464                            "                 the certificate file.\n");
 465         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 466         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 467         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 468         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 469         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 470         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 471         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 472         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 473         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 474         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 475         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 476         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 477 #ifndef OPENSSL_NO_ECDH
 478         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 479                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 480                            "                 (default is nistp256).\n");
 481 #endif
 482 #ifdef FIONBIO
 483         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 484 #endif
 485         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 486         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 487         BIO_printf(bio_err," -debug        - Print more output\n");
 488         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 489         BIO_printf(bio_err," -state        - Print the SSL states\n");
 490         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 491         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 492         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 493         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 494         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 495         BIO_printf(bio_err," -quiet        - No server output\n");
 496         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 497 #ifndef OPENSSL_NO_PSK
 498         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
 499         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 500 # ifndef OPENSSL_NO_JPAKE
 501         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 502 # endif
 503 #endif
 504 #ifndef OPENSSL_NO_SRP
 505         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
 506         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
 507 #endif
 508         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 509         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 510         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
 511         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
 512         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 513         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 514         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 515         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
 516         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 517         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 518         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 519         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 520         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
 521         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
 522 #ifndef OPENSSL_NO_DH
 523         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 524 #endif
 525 #ifndef OPENSSL_NO_ECDH
 526         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 527 #endif
 528         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
 529         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 530         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 531         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 532         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 533         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 534 #ifndef OPENSSL_NO_ENGINE
 535         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 536 #endif
 537         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 538         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 539 #ifndef OPENSSL_NO_TLSEXT
 540         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 541         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
 542         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 543         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 544         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 545         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 546         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
 547         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
 548         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 549 # ifndef OPENSSL_NO_NEXTPROTONEG
 550         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
 551 # endif
 552         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list");
 553 #endif
 554         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 555         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 556         }
 557
 558 static int local_argc=0;
 559 static char **local_argv;
 560
 561 #ifdef CHARSET_EBCDIC
 562 static int ebcdic_new(BIO *bi);
 563 static int ebcdic_free(BIO *a);
 564 static int ebcdic_read(BIO *b, char *out, int outl);
 565 static int ebcdic_write(BIO *b, const char *in, int inl);
 566 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 567 static int ebcdic_gets(BIO *bp, char *buf, int size);
 568 static int ebcdic_puts(BIO *bp, const char *str);
 569
 570 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 571 static BIO_METHOD methods_ebcdic=
 572         {
 573         BIO_TYPE_EBCDIC_FILTER,
 574         "EBCDIC/ASCII filter",
 575         ebcdic_write,
 576         ebcdic_read,
 577         ebcdic_puts,
 578         ebcdic_gets,
 579         ebcdic_ctrl,
 580         ebcdic_new,
 581         ebcdic_free,
 582         };
 583
 584 typedef struct
 585 {
 586         size_t  alloced;
 587         char    buff[1];
 588 } EBCDIC_OUTBUFF;
 589
 590 BIO_METHOD *BIO_f_ebcdic_filter()
 591 {
 592         return(&methods_ebcdic);
 593 }
 594
 595 static int ebcdic_new(BIO *bi)
 596 {
 597         EBCDIC_OUTBUFF *wbuf;
 598
 599         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 600         wbuf->alloced = 1024;
 601         wbuf->buff[0] = '\0';
 602
 603         bi->ptr=(char *)wbuf;
 604         bi->init=1;
 605         bi->flags=0;
 606         return(1);
 607 }
 608
 609 static int ebcdic_free(BIO *a)
 610 {
 611         if (a == NULL) return(0);
 612         if (a->ptr != NULL)
 613                 OPENSSL_free(a->ptr);
 614         a->ptr=NULL;
 615         a->init=0;
 616         a->flags=0;
 617         return(1);
 618 }
 619
 620 static int ebcdic_read(BIO *b, char *out, int outl)
 621 {
 622         int ret=0;
 623
 624         if (out == NULL || outl == 0) return(0);
 625         if (b->next_bio == NULL) return(0);
 626
 627         ret=BIO_read(b->next_bio,out,outl);
 628         if (ret > 0)
 629                 ascii2ebcdic(out,out,ret);
 630         return(ret);
 631 }
 632
 633 static int ebcdic_write(BIO *b, const char *in, int inl)
 634 {
 635         EBCDIC_OUTBUFF *wbuf;
 636         int ret=0;
 637         int num;
 638         unsigned char n;
 639
 640         if ((in == NULL) || (inl <= 0)) return(0);
 641         if (b->next_bio == NULL) return(0);
 642
 643         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 644
 645         if (inl > (num = wbuf->alloced))
 646         {
 647                 num = num + num;  /* double the size */
 648                 if (num < inl)
 649                         num = inl;
 650                 OPENSSL_free(wbuf);
 651                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 652
 653                 wbuf->alloced = num;
 654                 wbuf->buff[0] = '\0';
 655
 656                 b->ptr=(char *)wbuf;
 657         }
 658
 659         ebcdic2ascii(wbuf->buff, in, inl);
 660
 661         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 662
 663         return(ret);
 664 }
 665
 666 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 667 {
 668         long ret;
 669
 670         if (b->next_bio == NULL) return(0);
 671         switch (cmd)
 672         {
 673         case BIO_CTRL_DUP:
 674                 ret=0L;
 675                 break;
 676         default:
 677                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 678                 break;
 679         }
 680         return(ret);
 681 }
 682
 683 static int ebcdic_gets(BIO *bp, char *buf, int size)
 684 {
 685         int i, ret=0;
 686         if (bp->next_bio == NULL) return(0);
 687 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 688         for (i=0; i<size-1; ++i)
 689         {
 690                 ret = ebcdic_read(bp,&buf[i],1);
 691                 if (ret <= 0)
 692                         break;
 693                 else if (buf[i] == '\n')
 694                 {
 695                         ++i;
 696                         break;
 697                 }
 698         }
 699         if (i < size)
 700                 buf[i] = '\0';
 701         return (ret < 0 && i == 0) ? ret : i;
 702 }
 703
 704 static int ebcdic_puts(BIO *bp, const char *str)
 705 {
 706         if (bp->next_bio == NULL) return(0);
 707         return ebcdic_write(bp, str, strlen(str));
 708 }
 709 #endif
 710
 711 #ifndef OPENSSL_NO_TLSEXT
 712
 713 /* This is a context that we pass to callbacks */
 714 typedef struct tlsextctx_st {
 715    char * servername;
 716    BIO * biodebug;
 717    int extension_error;
 718 } tlsextctx;
 719
 720
 721 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 722         {
 723         tlsextctx * p = (tlsextctx *) arg;
 724         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 725         if (servername && p->biodebug)
 726                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 727
 728         if (!p->servername)
 729                 return SSL_TLSEXT_ERR_NOACK;
 730
 731         if (servername)
 732                 {
 733                 if (strcmp(servername,p->servername))
 734                         return p->extension_error;
 735                 if (ctx2)
 736                         {
 737                         BIO_printf(p->biodebug,"Switching server context.\n");
 738                         SSL_set_SSL_CTX(s,ctx2);
 739                         }
 740                 }
 741         return SSL_TLSEXT_ERR_OK;
 742 }
 743
 744 /* Structure passed to cert status callback */
 745
 746 typedef struct tlsextstatusctx_st {
 747    /* Default responder to use */
 748    char *host, *path, *port;
 749    int use_ssl;
 750    int timeout;
 751    BIO *err;
 752    int verbose;
 753 } tlsextstatusctx;
 754
 755 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
 756
 757 /* Certificate Status callback. This is called when a client includes a
 758  * certificate status request extension.
 759  *
 760  * This is a simplified version. It examines certificates each time and
 761  * makes one OCSP responder query for each request.
 762  *
 763  * A full version would store details such as the OCSP certificate IDs and
 764  * minimise the number of OCSP responses by caching them until they were
 765  * considered "expired".
 766  */
 767
 768 static int cert_status_cb(SSL *s, void *arg)
 769         {
 770         tlsextstatusctx *srctx = arg;
 771         BIO *err = srctx->err;
 772         char *host, *port, *path;
 773         int use_ssl;
 774         unsigned char *rspder = NULL;
 775         int rspderlen;
 776         STACK_OF(OPENSSL_STRING) *aia = NULL;
 777         X509 *x = NULL;
 778         X509_STORE_CTX inctx;
 779         X509_OBJECT obj;
 780         OCSP_REQUEST *req = NULL;
 781         OCSP_RESPONSE *resp = NULL;
 782         OCSP_CERTID *id = NULL;
 783         STACK_OF(X509_EXTENSION) *exts;
 784         int ret = SSL_TLSEXT_ERR_NOACK;
 785         int i;
 786 #if 0
 787 STACK_OF(OCSP_RESPID) *ids;
 788 SSL_get_tlsext_status_ids(s, &ids);
 789 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
 790 #endif
 791         if (srctx->verbose)
 792                 BIO_puts(err, "cert_status: callback called\n");
 793         /* Build up OCSP query from server certificate */
 794         x = SSL_get_certificate(s);
 795         aia = X509_get1_ocsp(x);
 796         if (aia)
 797                 {
 798                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
 799                         &host, &port, &path, &use_ssl))
 800                         {
 801                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
 802                         goto err;
 803                         }
 804                 if (srctx->verbose)
 805                         BIO_printf(err, "cert_status: AIA URL: %s\n",
 806                                         sk_OPENSSL_STRING_value(aia, 0));
 807                 }
 808         else
 809                 {
 810                 if (!srctx->host)
 811                         {
 812                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
 813                         goto done;
 814                         }
 815                 host = srctx->host;
 816                 path = srctx->path;
 817                 port = srctx->port;
 818                 use_ssl = srctx->use_ssl;
 819                 }
 820
 821         if (!X509_STORE_CTX_init(&inctx,
 822                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
 823                                 NULL, NULL))
 824                 goto err;
 825         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
 826                                 X509_get_issuer_name(x),&obj) <= 0)
 827                 {
 828                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
 829                 X509_STORE_CTX_cleanup(&inctx);
 830                 goto done;
 831                 }
 832         req = OCSP_REQUEST_new();
 833         if (!req)
 834                 goto err;
 835         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
 836         X509_free(obj.data.x509);
 837         X509_STORE_CTX_cleanup(&inctx);
 838         if (!id)
 839                 goto err;
 840         if (!OCSP_request_add0_id(req, id))
 841                 goto err;
 842         id = NULL;
 843         /* Add any extensions to the request */
 844         SSL_get_tlsext_status_exts(s, &exts);
 845         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
 846                 {
 847                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
 848                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
 849                         goto err;
 850                 }
 851         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
 852                                         srctx->timeout);
 853         if (!resp)
 854                 {
 855                 BIO_puts(err, "cert_status: error querying responder\n");
 856                 goto done;
 857                 }
 858         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
 859         if (rspderlen <= 0)
 860                 goto err;
 861         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
 862         if (srctx->verbose)
 863                 {
 864                 BIO_puts(err, "cert_status: ocsp response sent:\n");
 865                 OCSP_RESPONSE_print(err, resp, 2);
 866                 }
 867         ret = SSL_TLSEXT_ERR_OK;
 868         done:
 869         if (ret != SSL_TLSEXT_ERR_OK)
 870                 ERR_print_errors(err);
 871         if (aia)
 872                 {
 873                 OPENSSL_free(host);
 874                 OPENSSL_free(path);
 875                 OPENSSL_free(port);
 876                 X509_email_free(aia);
 877                 }
 878         if (id)
 879                 OCSP_CERTID_free(id);
 880         if (req)
 881                 OCSP_REQUEST_free(req);
 882         if (resp)
 883                 OCSP_RESPONSE_free(resp);
 884         return ret;
 885         err:
 886         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
 887         goto done;
 888         }
 889
 890 # ifndef OPENSSL_NO_NEXTPROTONEG
 891 /* This is the context that we pass to next_proto_cb */
 892 typedef struct tlsextnextprotoctx_st {
 893         unsigned char *data;
 894         unsigned int len;
 895 } tlsextnextprotoctx;
 896
 897 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
 898         {
 899         tlsextnextprotoctx *next_proto = arg;
 900
 901         *data = next_proto->data;
 902         *len = next_proto->len;
 903
 904         return SSL_TLSEXT_ERR_OK;
 905         }
 906 # endif  /* ndef OPENSSL_NO_NPN */
 907 #endif
 908
 909 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
 910         {
 911         /* disable resumption for sessions with forward secure ciphers */
 912         return is_forward_secure;
 913         }
 914
 915 int MAIN(int, char **);
 916
 917 #ifndef OPENSSL_NO_JPAKE
 918 static char *jpake_secret = NULL;
 919 #endif
 920 static char *srtp_profiles = NULL;
 921
 922 int MAIN(int argc, char *argv[])
 923         {
 924         X509_VERIFY_PARAM *vpm = NULL;
 925         int badarg = 0;
 926         short port=PORT;
 927         char *CApath=NULL,*CAfile=NULL;
 928         unsigned char *context = NULL;
 929         char *dhfile = NULL;
 930 #ifndef OPENSSL_NO_ECDH
 931         char *named_curve = NULL;
 932 #endif
 933         int badop=0,bugs=0;
 934         int ret=1;
 935         int off=0;
 936         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
 937         int state=0;
 938         const SSL_METHOD *meth=NULL;
 939         int socket_type=SOCK_STREAM;
 940         ENGINE *e=NULL;
 941         char *inrand=NULL;
 942         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
 943         char *passarg = NULL, *pass = NULL;
 944         char *dpassarg = NULL, *dpass = NULL;
 945         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
 946         X509 *s_cert = NULL, *s_dcert = NULL;
 947         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
 948         int no_cache = 0, ext_cache = 0;
 949 #ifndef OPENSSL_NO_TLSEXT
 950         EVP_PKEY *s_key2 = NULL;
 951         X509 *s_cert2 = NULL;
 952 #endif
 953 #ifndef OPENSSL_NO_TLSEXT
 954         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
 955 # ifndef OPENSSL_NO_NEXTPROTONEG
 956         const char *next_proto_neg_in = NULL;
 957         tlsextnextprotoctx next_proto;
 958 # endif
 959 #endif
 960 #ifndef OPENSSL_NO_PSK
 961         /* by default do not send a PSK identity hint */
 962         static char *psk_identity_hint=NULL;
 963 #endif
 964 #ifndef OPENSSL_NO_SRP
 965         char *srpuserseed = NULL;
 966         char *srp_verifier_file = NULL;
 967         srpsrvparm p;
 968 #endif
 969 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 970         meth=SSLv23_server_method();
 971 #elif !defined(OPENSSL_NO_SSL3)
 972         meth=SSLv3_server_method();
 973 #elif !defined(OPENSSL_NO_SSL2)
 974         meth=SSLv2_server_method();
 975 #elif !defined(OPENSSL_NO_TLS1)
 976         meth=TLSv1_server_method();
 977 #else
 978   /*  #error no SSL version enabled */
 979 #endif
 980
 981         local_argc=argc;
 982         local_argv=argv;
 983
 984         apps_startup();
 985 #ifdef MONOLITH
 986         s_server_init();
 987 #endif
 988
 989         if (bio_err == NULL)
 990                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 991
 992         if (!load_config(bio_err, NULL))
 993                 goto end;
 994
 995         verify_depth=0;
 996 #ifdef FIONBIO
 997         s_nbio=0;
 998 #endif
 999         s_nbio_test=0;
1000
1001         argc--;
1002         argv++;
1003
1004         while (argc >= 1)
1005                 {
1006                 if      ((strcmp(*argv,"-port") == 0) ||
1007                          (strcmp(*argv,"-accept") == 0))
1008                         {
1009                         if (--argc < 1) goto bad;
1010                         if (!extract_port(*(++argv),&port))
1011                                 goto bad;
1012                         }
1013                 else if (strcmp(*argv,"-verify") == 0)
1014                         {
1015                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1016                         if (--argc < 1) goto bad;
1017                         verify_depth=atoi(*(++argv));
1018                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1019                         }
1020                 else if (strcmp(*argv,"-Verify") == 0)
1021                         {
1022                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1023                                 SSL_VERIFY_CLIENT_ONCE;
1024                         if (--argc < 1) goto bad;
1025                         verify_depth=atoi(*(++argv));
1026                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1027                         }
1028                 else if (strcmp(*argv,"-context") == 0)
1029                         {
1030                         if (--argc < 1) goto bad;
1031                         context= (unsigned char *)*(++argv);
1032                         }
1033                 else if (strcmp(*argv,"-cert") == 0)
1034                         {
1035                         if (--argc < 1) goto bad;
1036                         s_cert_file= *(++argv);
1037                         }
1038                 else if (strcmp(*argv,"-certform") == 0)
1039                         {
1040                         if (--argc < 1) goto bad;
1041                         s_cert_format = str2fmt(*(++argv));
1042                         }
1043                 else if (strcmp(*argv,"-key") == 0)
1044                         {
1045                         if (--argc < 1) goto bad;
1046                         s_key_file= *(++argv);
1047                         }
1048                 else if (strcmp(*argv,"-keyform") == 0)
1049                         {
1050                         if (--argc < 1) goto bad;
1051                         s_key_format = str2fmt(*(++argv));
1052                         }
1053                 else if (strcmp(*argv,"-pass") == 0)
1054                         {
1055                         if (--argc < 1) goto bad;
1056                         passarg = *(++argv);
1057                         }
1058                 else if (strcmp(*argv,"-dhparam") == 0)
1059                         {
1060                         if (--argc < 1) goto bad;
1061                         dhfile = *(++argv);
1062                         }
1063 #ifndef OPENSSL_NO_ECDH
1064                 else if (strcmp(*argv,"-named_curve") == 0)
1065                         {
1066                         if (--argc < 1) goto bad;
1067                         named_curve = *(++argv);
1068                         }
1069 #endif
1070                 else if (strcmp(*argv,"-dcertform") == 0)
1071                         {
1072                         if (--argc < 1) goto bad;
1073                         s_dcert_format = str2fmt(*(++argv));
1074                         }
1075                 else if (strcmp(*argv,"-dcert") == 0)
1076                         {
1077                         if (--argc < 1) goto bad;
1078                         s_dcert_file= *(++argv);
1079                         }
1080                 else if (strcmp(*argv,"-dkeyform") == 0)
1081                         {
1082                         if (--argc < 1) goto bad;
1083                         s_dkey_format = str2fmt(*(++argv));
1084                         }
1085                 else if (strcmp(*argv,"-dpass") == 0)
1086                         {
1087                         if (--argc < 1) goto bad;
1088                         dpassarg = *(++argv);
1089                         }
1090                 else if (strcmp(*argv,"-dkey") == 0)
1091                         {
1092                         if (--argc < 1) goto bad;
1093                         s_dkey_file= *(++argv);
1094                         }
1095                 else if (strcmp(*argv,"-nocert") == 0)
1096                         {
1097                         nocert=1;
1098                         }
1099                 else if (strcmp(*argv,"-CApath") == 0)
1100                         {
1101                         if (--argc < 1) goto bad;
1102                         CApath= *(++argv);
1103                         }
1104                 else if (strcmp(*argv,"-no_cache") == 0)
1105                         no_cache = 1;
1106                 else if (strcmp(*argv,"-ext_cache") == 0)
1107                         ext_cache = 1;
1108                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1109                         {
1110                         if (badarg)
1111                                 goto bad;
1112                         continue;
1113                         }
1114                 else if (strcmp(*argv,"-verify_return_error") == 0)
1115                         verify_return_error = 1;
1116                 else if (strcmp(*argv,"-serverpref") == 0)
1117                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
1118                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
1119                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
1120                 else if (strcmp(*argv,"-cipher") == 0)
1121                         {
1122                         if (--argc < 1) goto bad;
1123                         cipher= *(++argv);
1124                         }
1125                 else if (strcmp(*argv,"-CAfile") == 0)
1126                         {
1127                         if (--argc < 1) goto bad;
1128                         CAfile= *(++argv);
1129                         }
1130 #ifdef FIONBIO
1131                 else if (strcmp(*argv,"-nbio") == 0)
1132                         { s_nbio=1; }
1133 #endif
1134                 else if (strcmp(*argv,"-nbio_test") == 0)
1135                         {
1136 #ifdef FIONBIO
1137                         s_nbio=1;
1138 #endif
1139                         s_nbio_test=1;
1140                         }
1141                 else if (strcmp(*argv,"-debug") == 0)
1142                         { s_debug=1; }
1143 #ifndef OPENSSL_NO_TLSEXT
1144                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1145                         s_tlsextdebug=1;
1146                 else if (strcmp(*argv,"-status") == 0)
1147                         s_tlsextstatus=1;
1148                 else if (strcmp(*argv,"-status_verbose") == 0)
1149                         {
1150                         s_tlsextstatus=1;
1151                         tlscstatp.verbose = 1;
1152                         }
1153                 else if (!strcmp(*argv, "-status_timeout"))
1154                         {
1155                         s_tlsextstatus=1;
1156                         if (--argc < 1) goto bad;
1157                         tlscstatp.timeout = atoi(*(++argv));
1158                         }
1159                 else if (!strcmp(*argv, "-status_url"))
1160                         {
1161                         s_tlsextstatus=1;
1162                         if (--argc < 1) goto bad;
1163                         if (!OCSP_parse_url(*(++argv),
1164                                         &tlscstatp.host,
1165                                         &tlscstatp.port,
1166                                         &tlscstatp.path,
1167                                         &tlscstatp.use_ssl))
1168                                 {
1169                                 BIO_printf(bio_err, "Error parsing URL\n");
1170                                 goto bad;
1171                                 }
1172                         }
1173 #endif
1174                 else if (strcmp(*argv,"-msg") == 0)
1175                         { s_msg=1; }
1176                 else if (strcmp(*argv,"-hack") == 0)
1177                         { hack=1; }
1178                 else if (strcmp(*argv,"-state") == 0)
1179                         { state=1; }
1180                 else if (strcmp(*argv,"-crlf") == 0)
1181                         { s_crlf=1; }
1182                 else if (strcmp(*argv,"-quiet") == 0)
1183                         { s_quiet=1; }
1184                 else if (strcmp(*argv,"-bugs") == 0)
1185                         { bugs=1; }
1186                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1187                         { no_tmp_rsa=1; }
1188                 else if (strcmp(*argv,"-no_dhe") == 0)
1189                         { no_dhe=1; }
1190                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1191                         { no_ecdhe=1; }
1192                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1193                         { no_resume_ephemeral = 1; }
1194 #ifndef OPENSSL_NO_PSK
1195                 else if (strcmp(*argv,"-psk_hint") == 0)
1196                         {
1197                         if (--argc < 1) goto bad;
1198                         psk_identity_hint= *(++argv);
1199                         }
1200                 else if (strcmp(*argv,"-psk") == 0)
1201                         {
1202                         size_t i;
1203
1204                         if (--argc < 1) goto bad;
1205                         psk_key=*(++argv);
1206                         for (i=0; i<strlen(psk_key); i++)
1207                                 {
1208                                 if (isxdigit((int)psk_key[i]))
1209                                         continue;
1210                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1211                                 goto bad;
1212                                 }
1213                         }
1214 #endif
1215 #ifndef OPENSSL_NO_SRP
1216                 else if (strcmp(*argv, "-srpvfile") == 0)
1217                         {
1218                         if (--argc < 1) goto bad;
1219                         srp_verifier_file = *(++argv);
1220                         meth = TLSv1_server_method();
1221                         }
1222                 else if (strcmp(*argv, "-srpuserseed") == 0)
1223                         {
1224                         if (--argc < 1) goto bad;
1225                         srpuserseed = *(++argv);
1226                         meth = TLSv1_server_method();
1227                         }
1228 #endif
1229                 else if (strcmp(*argv,"-www") == 0)
1230                         { www=1; }
1231                 else if (strcmp(*argv,"-WWW") == 0)
1232                         { www=2; }
1233                 else if (strcmp(*argv,"-HTTP") == 0)
1234                         { www=3; }
1235                 else if (strcmp(*argv,"-no_ssl2") == 0)
1236                         { off|=SSL_OP_NO_SSLv2; }
1237                 else if (strcmp(*argv,"-no_ssl3") == 0)
1238                         { off|=SSL_OP_NO_SSLv3; }
1239                 else if (strcmp(*argv,"-no_tls1_2") == 0)
1240                         { off|=SSL_OP_NO_TLSv1_2; }
1241                 else if (strcmp(*argv,"-no_tls1_1") == 0)
1242                         { off|=SSL_OP_NO_TLSv1_1; }
1243                 else if (strcmp(*argv,"-no_tls1") == 0)
1244                         { off|=SSL_OP_NO_TLSv1; }
1245                 else if (strcmp(*argv,"-no_comp") == 0)
1246                         { off|=SSL_OP_NO_COMPRESSION; }
1247 #ifndef OPENSSL_NO_TLSEXT
1248                 else if (strcmp(*argv,"-no_ticket") == 0)
1249                         { off|=SSL_OP_NO_TICKET; }
1250 #endif
1251 #ifndef OPENSSL_NO_SSL2
1252                 else if (strcmp(*argv,"-ssl2") == 0)
1253                         { meth=SSLv2_server_method(); }
1254 #endif
1255 #ifndef OPENSSL_NO_SSL3
1256                 else if (strcmp(*argv,"-ssl3") == 0)
1257                         { meth=SSLv3_server_method(); }
1258 #endif
1259 #ifndef OPENSSL_NO_TLS1
1260                 else if (strcmp(*argv,"-tls1_2") == 0)
1261                         { meth=TLSv1_2_server_method(); }
1262                 else if (strcmp(*argv,"-tls1_1") == 0)
1263                         { meth=TLSv1_1_server_method(); }
1264                 else if (strcmp(*argv,"-tls1") == 0)
1265                         { meth=TLSv1_server_method(); }
1266                 else if (strcmp(*argv,"-tls1_1") == 0)
1267                         { meth=TLSv1_1_server_method(); }
1268 #endif
1269 #ifndef OPENSSL_NO_DTLS1
1270                 else if (strcmp(*argv,"-dtls1") == 0)
1271                         {
1272                         meth=DTLSv1_server_method();
1273                         socket_type = SOCK_DGRAM;
1274                         }
1275                 else if (strcmp(*argv,"-timeout") == 0)
1276                         enable_timeouts = 1;
1277                 else if (strcmp(*argv,"-mtu") == 0)
1278                         {
1279                         if (--argc < 1) goto bad;
1280                         socket_mtu = atol(*(++argv));
1281                         }
1282                 else if (strcmp(*argv, "-chain") == 0)
1283                         cert_chain = 1;
1284 #endif
1285                 else if (strcmp(*argv, "-id_prefix") == 0)
1286                         {
1287                         if (--argc < 1) goto bad;
1288                         session_id_prefix = *(++argv);
1289                         }
1290 #ifndef OPENSSL_NO_ENGINE
1291                 else if (strcmp(*argv,"-engine") == 0)
1292                         {
1293                         if (--argc < 1) goto bad;
1294                         engine_id= *(++argv);
1295                         }
1296 #endif
1297                 else if (strcmp(*argv,"-rand") == 0)
1298                         {
1299                         if (--argc < 1) goto bad;
1300                         inrand= *(++argv);
1301                         }
1302 #ifndef OPENSSL_NO_TLSEXT
1303                 else if (strcmp(*argv,"-servername") == 0)
1304                         {
1305                         if (--argc < 1) goto bad;
1306                         tlsextcbp.servername= *(++argv);
1307                         }
1308                 else if (strcmp(*argv,"-servername_fatal") == 0)
1309                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1310                 else if (strcmp(*argv,"-cert2") == 0)
1311                         {
1312                         if (--argc < 1) goto bad;
1313                         s_cert_file2= *(++argv);
1314                         }
1315                 else if (strcmp(*argv,"-key2") == 0)
1316                         {
1317                         if (--argc < 1) goto bad;
1318                         s_key_file2= *(++argv);
1319                         }
1320 # ifndef OPENSSL_NO_NEXTPROTONEG
1321                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1322                         {
1323                         if (--argc < 1) goto bad;
1324                         next_proto_neg_in = *(++argv);
1325                         }
1326 # endif
1327 #endif
1328 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1329                 else if (strcmp(*argv,"-jpake") == 0)
1330                         {
1331                         if (--argc < 1) goto bad;
1332                         jpake_secret = *(++argv);
1333                         }
1334 #endif
1335                 else if (strcmp(*argv,"-use_srtp") == 0)
1336                         {
1337                         if (--argc < 1) goto bad;
1338                         srtp_profiles = *(++argv);
1339                         }
1340                 else if (strcmp(*argv,"-keymatexport") == 0)
1341                         {
1342                         if (--argc < 1) goto bad;
1343                         keymatexportlabel= *(++argv);
1344                         }
1345                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1346                         {
1347                         if (--argc < 1) goto bad;
1348                         keymatexportlen=atoi(*(++argv));
1349                         if (keymatexportlen == 0) goto bad;
1350                         }
1351                 else
1352                         {
1353                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1354                         badop=1;
1355                         break;
1356                         }
1357                 argc--;
1358                 argv++;
1359                 }
1360         if (badop)
1361                 {
1362 bad:
1363                 sv_usage();
1364                 goto end;
1365                 }
1366
1367 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1368         if (jpake_secret)
1369                 {
1370                 if (psk_key)
1371                         {
1372                         BIO_printf(bio_err,
1373                                    "Can't use JPAKE and PSK together\n");
1374                         goto end;
1375                         }
1376                 psk_identity = "JPAKE";
1377                 if (cipher)
1378                         {
1379                         BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1380                         goto end;
1381                         }
1382                 cipher = "PSK";
1383                 }
1384
1385 #endif
1386
1387         SSL_load_error_strings();
1388         OpenSSL_add_ssl_algorithms();
1389
1390 #ifndef OPENSSL_NO_ENGINE
1391         e = setup_engine(bio_err, engine_id, 1);
1392 #endif
1393
1394         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1395                 {
1396                 BIO_printf(bio_err, "Error getting password\n");
1397                 goto end;
1398                 }
1399
1400
1401         if (s_key_file == NULL)
1402                 s_key_file = s_cert_file;
1403 #ifndef OPENSSL_NO_TLSEXT
1404         if (s_key_file2 == NULL)
1405                 s_key_file2 = s_cert_file2;
1406 #endif
1407
1408         if (nocert == 0)
1409                 {
1410                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1411                        "server certificate private key file");
1412                 if (!s_key)
1413                         {
1414                         ERR_print_errors(bio_err);
1415                         goto end;
1416                         }
1417
1418                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1419                         NULL, e, "server certificate file");
1420
1421                 if (!s_cert)
1422                         {
1423                         ERR_print_errors(bio_err);
1424                         goto end;
1425                         }
1426
1427 #ifndef OPENSSL_NO_TLSEXT
1428                 if (tlsextcbp.servername)
1429                         {
1430                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1431                                 "second server certificate private key file");
1432                         if (!s_key2)
1433                                 {
1434                                 ERR_print_errors(bio_err);
1435                                 goto end;
1436                                 }
1437
1438                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1439                                 NULL, e, "second server certificate file");
1440
1441                         if (!s_cert2)
1442                                 {
1443                                 ERR_print_errors(bio_err);
1444                                 goto end;
1445                                 }
1446                         }
1447 # ifndef OPENSSL_NO_NEXTPROTONEG
1448                 if (next_proto_neg_in)
1449                         {
1450                         unsigned short len;
1451                         next_proto.data = next_protos_parse(&len,
1452                                 next_proto_neg_in);
1453                         if (next_proto.data == NULL)
1454                                 goto end;
1455                         next_proto.len = len;
1456                         }
1457                 else
1458                         {
1459                         next_proto.data = NULL;
1460                         }
1461 # endif
1462 #endif
1463                 }
1464
1465
1466         if (s_dcert_file)
1467                 {
1468
1469                 if (s_dkey_file == NULL)
1470                         s_dkey_file = s_dcert_file;
1471
1472                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1473                                 0, dpass, e,
1474                                "second certificate private key file");
1475                 if (!s_dkey)
1476                         {
1477                         ERR_print_errors(bio_err);
1478                         goto end;
1479                         }
1480
1481                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1482                                 NULL, e, "second server certificate file");
1483
1484                 if (!s_dcert)
1485                         {
1486                         ERR_print_errors(bio_err);
1487                         goto end;
1488                         }
1489
1490                 }
1491
1492         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1493                 && !RAND_status())
1494                 {
1495                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1496                 }
1497         if (inrand != NULL)
1498                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1499                         app_RAND_load_files(inrand));
1500
1501         if (bio_s_out == NULL)
1502                 {
1503                 if (s_quiet && !s_debug && !s_msg)
1504                         {
1505                         bio_s_out=BIO_new(BIO_s_null());
1506                         }
1507                 else
1508                         {
1509                         if (bio_s_out == NULL)
1510                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1511                         }
1512                 }
1513
1514 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1515         if (nocert)
1516 #endif
1517                 {
1518                 s_cert_file=NULL;
1519                 s_key_file=NULL;
1520                 s_dcert_file=NULL;
1521                 s_dkey_file=NULL;
1522 #ifndef OPENSSL_NO_TLSEXT
1523                 s_cert_file2=NULL;
1524                 s_key_file2=NULL;
1525 #endif
1526                 }
1527
1528         ctx=SSL_CTX_new(meth);
1529         if (ctx == NULL)
1530                 {
1531                 ERR_print_errors(bio_err);
1532                 goto end;
1533                 }
1534         if (session_id_prefix)
1535                 {
1536                 if(strlen(session_id_prefix) >= 32)
1537                         BIO_printf(bio_err,
1538 "warning: id_prefix is too long, only one new session will be possible\n");
1539                 else if(strlen(session_id_prefix) >= 16)
1540                         BIO_printf(bio_err,
1541 "warning: id_prefix is too long if you use SSLv2\n");
1542                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1543                         {
1544                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1545                         ERR_print_errors(bio_err);
1546                         goto end;
1547                         }
1548                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1549                 }
1550         SSL_CTX_set_quiet_shutdown(ctx,1);
1551         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1552         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1553         SSL_CTX_set_options(ctx,off);
1554         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1555          * Setting read ahead solves this problem.
1556          */
1557         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1558
1559         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1560         if (no_cache)
1561                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1562         else if (ext_cache)
1563                 init_session_cache_ctx(ctx);
1564         else
1565                 SSL_CTX_sess_set_cache_size(ctx,128);
1566
1567         if (srtp_profiles != NULL)
1568                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1569
1570 #if 0
1571         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1572 #endif
1573
1574 #if 0
1575         if (s_cert_file == NULL)
1576                 {
1577                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1578                 goto end;
1579                 }
1580 #endif
1581
1582         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1583                 (!SSL_CTX_set_default_verify_paths(ctx)))
1584                 {
1585                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1586                 ERR_print_errors(bio_err);
1587                 /* goto end; */
1588                 }
1589         if (vpm)
1590                 SSL_CTX_set1_param(ctx, vpm);
1591
1592 #ifndef OPENSSL_NO_TLSEXT
1593         if (s_cert2)
1594                 {
1595                 ctx2=SSL_CTX_new(meth);
1596                 if (ctx2 == NULL)
1597                         {
1598                         ERR_print_errors(bio_err);
1599                         goto end;
1600                         }
1601                 }
1602
1603         if (ctx2)
1604                 {
1605                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1606
1607                 if (session_id_prefix)
1608                         {
1609                         if(strlen(session_id_prefix) >= 32)
1610                                 BIO_printf(bio_err,
1611                                         "warning: id_prefix is too long, only one new session will be possible\n");
1612                         else if(strlen(session_id_prefix) >= 16)
1613                                 BIO_printf(bio_err,
1614                                         "warning: id_prefix is too long if you use SSLv2\n");
1615                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1616                                 {
1617                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1618                                 ERR_print_errors(bio_err);
1619                                 goto end;
1620                                 }
1621                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1622                         }
1623                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1624                 if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1625                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1626                 SSL_CTX_set_options(ctx2,off);
1627                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1628                  * Setting read ahead solves this problem.
1629                  */
1630                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1631
1632                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1633
1634                 if (no_cache)
1635                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1636                 else if (ext_cache)
1637                         init_session_cache_ctx(ctx2);
1638                 else
1639                         SSL_CTX_sess_set_cache_size(ctx2,128);
1640
1641                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1642                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1643                         {
1644                         ERR_print_errors(bio_err);
1645                         }
1646                 if (vpm)
1647                         SSL_CTX_set1_param(ctx2, vpm);
1648                 }
1649
1650 # ifndef OPENSSL_NO_NEXTPROTONEG
1651         if (next_proto.data)
1652                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1653 # endif
1654 #endif
1655
1656 #ifndef OPENSSL_NO_DH
1657         if (!no_dhe)
1658                 {
1659                 DH *dh=NULL;
1660
1661                 if (dhfile)
1662                         dh = load_dh_param(dhfile);
1663                 else if (s_cert_file)
1664                         dh = load_dh_param(s_cert_file);
1665
1666                 if (dh != NULL)
1667                         {
1668                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1669                         }
1670                 else
1671                         {
1672                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1673                         dh=get_dh512();
1674                         }
1675                 (void)BIO_flush(bio_s_out);
1676
1677                 SSL_CTX_set_tmp_dh(ctx,dh);
1678 #ifndef OPENSSL_NO_TLSEXT
1679                 if (ctx2)
1680                         {
1681                         if (!dhfile)
1682                                 {
1683                                 DH *dh2=load_dh_param(s_cert_file2);
1684                                 if (dh2 != NULL)
1685                                         {
1686                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1687                                         (void)BIO_flush(bio_s_out);
1688
1689                                         DH_free(dh);
1690                                         dh = dh2;
1691                                         }
1692                                 }
1693                         SSL_CTX_set_tmp_dh(ctx2,dh);
1694                         }
1695 #endif
1696                 DH_free(dh);
1697                 }
1698 #endif
1699
1700 #ifndef OPENSSL_NO_ECDH
1701         if (!no_ecdhe)
1702                 {
1703                 EC_KEY *ecdh=NULL;
1704
1705                 if (named_curve)
1706                         {
1707                         int nid = OBJ_sn2nid(named_curve);
1708
1709                         if (nid == 0)
1710                                 {
1711                                 BIO_printf(bio_err, "unknown curve name (%s)\n",
1712                                         named_curve);
1713                                 goto end;
1714                                 }
1715                         ecdh = EC_KEY_new_by_curve_name(nid);
1716                         if (ecdh == NULL)
1717                                 {
1718                                 BIO_printf(bio_err, "unable to create curve (%s)\n",
1719                                         named_curve);
1720                                 goto end;
1721                                 }
1722                         }
1723
1724                 if (ecdh != NULL)
1725                         {
1726                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1727                         }
1728                 else
1729                         {
1730                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1731                         ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
1732                         if (ecdh == NULL)
1733                                 {
1734                                 BIO_printf(bio_err, "unable to create curve (nistp256)\n");
1735                                 goto end;
1736                                 }
1737                         }
1738                 (void)BIO_flush(bio_s_out);
1739
1740                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1741 #ifndef OPENSSL_NO_TLSEXT
1742                 if (ctx2)
1743                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1744 #endif
1745                 EC_KEY_free(ecdh);
1746                 }
1747 #endif
1748
1749         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1750                 goto end;
1751 #ifndef OPENSSL_NO_TLSEXT
1752         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1753                 goto end;
1754 #endif
1755         if (s_dcert != NULL)
1756                 {
1757                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1758                         goto end;
1759                 }
1760
1761 #ifndef OPENSSL_NO_RSA
1762 #if 1
1763         if (!no_tmp_rsa)
1764                 {
1765                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1766 #ifndef OPENSSL_NO_TLSEXT
1767                 if (ctx2)
1768                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1769 #endif
1770                 }
1771 #else
1772         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1773                 {
1774                 RSA *rsa;
1775
1776                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1777                 BIO_flush(bio_s_out);
1778
1779                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1780
1781                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1782                         {
1783                         ERR_print_errors(bio_err);
1784                         goto end;
1785                         }
1786 #ifndef OPENSSL_NO_TLSEXT
1787                         if (ctx2)
1788                                 {
1789                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1790                                         {
1791                                         ERR_print_errors(bio_err);
1792                                         goto end;
1793                                         }
1794                                 }
1795 #endif
1796                 RSA_free(rsa);
1797                 BIO_printf(bio_s_out,"\n");
1798                 }
1799 #endif
1800 #endif
1801
1802         if (no_resume_ephemeral)
1803                 {
1804                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
1805 #ifndef OPENSSL_NO_TLSEXT
1806                 if (ctx2)
1807                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
1808 #endif
1809                 }
1810
1811 #ifndef OPENSSL_NO_PSK
1812 #ifdef OPENSSL_NO_JPAKE
1813         if (psk_key != NULL)
1814 #else
1815         if (psk_key != NULL || jpake_secret)
1816 #endif
1817                 {
1818                 if (s_debug)
1819                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
1820                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1821                 }
1822
1823         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1824                 {
1825                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1826                 ERR_print_errors(bio_err);
1827                 goto end;
1828                 }
1829 #endif
1830
1831         if (cipher != NULL)
1832                 {
1833                 if(!SSL_CTX_set_cipher_list(ctx,cipher))
1834                         {
1835                         BIO_printf(bio_err,"error setting cipher list\n");
1836                         ERR_print_errors(bio_err);
1837                         goto end;
1838                         }
1839 #ifndef OPENSSL_NO_TLSEXT
1840                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1841                         {
1842                         BIO_printf(bio_err,"error setting cipher list\n");
1843                         ERR_print_errors(bio_err);
1844                         goto end;
1845                         }
1846 #endif
1847                 }
1848         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1849         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1850                 sizeof s_server_session_id_context);
1851
1852         /* Set DTLS cookie generation and verification callbacks */
1853         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1854         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1855
1856 #ifndef OPENSSL_NO_TLSEXT
1857         if (ctx2)
1858                 {
1859                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1860                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1861                         sizeof s_server_session_id_context);
1862
1863                 tlsextcbp.biodebug = bio_s_out;
1864                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1865                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1866                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1867                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1868                 }
1869 #endif
1870
1871 #ifndef OPENSSL_NO_SRP
1872         if (srp_verifier_file != NULL)
1873                 {
1874                 p.vb = SRP_VBASE_new(srpuserseed);
1875                 if ((ret = SRP_VBASE_init(p.vb, srp_verifier_file)) != SRP_NO_ERROR)
1876                         {
1877                         BIO_printf(bio_err,
1878                                            "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1879                                            srp_verifier_file,ret);
1880                                 goto end;
1881                         }
1882                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
1883                 SSL_CTX_set_srp_cb_arg(ctx, &p);
1884                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1885                 }
1886         else
1887 #endif
1888         if (CAfile != NULL)
1889                 {
1890                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1891 #ifndef OPENSSL_NO_TLSEXT
1892                 if (ctx2)
1893                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1894 #endif
1895                 }
1896
1897         BIO_printf(bio_s_out,"ACCEPT\n");
1898         (void)BIO_flush(bio_s_out);
1899         if (www)
1900                 do_server(port,socket_type,&accept_socket,www_body, context);
1901         else
1902                 do_server(port,socket_type,&accept_socket,sv_body, context);
1903         print_stats(bio_s_out,ctx);
1904         ret=0;
1905 end:
1906         if (ctx != NULL) SSL_CTX_free(ctx);
1907         if (s_cert)
1908                 X509_free(s_cert);
1909         if (s_dcert)
1910                 X509_free(s_dcert);
1911         if (s_key)
1912                 EVP_PKEY_free(s_key);
1913         if (s_dkey)
1914                 EVP_PKEY_free(s_dkey);
1915         if (pass)
1916                 OPENSSL_free(pass);
1917         if (dpass)
1918                 OPENSSL_free(dpass);
1919         free_sessions();
1920 #ifndef OPENSSL_NO_TLSEXT
1921         if (ctx2 != NULL) SSL_CTX_free(ctx2);
1922         if (s_cert2)
1923                 X509_free(s_cert2);
1924         if (s_key2)
1925                 EVP_PKEY_free(s_key2);
1926 #endif
1927         if (bio_s_out != NULL)
1928                 {
1929         BIO_free(bio_s_out);
1930                 bio_s_out=NULL;
1931                 }
1932         apps_shutdown();
1933         OPENSSL_EXIT(ret);
1934         }
1935
1936 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1937         {
1938         BIO_printf(bio,"%4ld items in the session cache\n",
1939                 SSL_CTX_sess_number(ssl_ctx));
1940         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1941                 SSL_CTX_sess_connect(ssl_ctx));
1942         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1943                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1944         BIO_printf(bio,"%4ld client connects that finished\n",
1945                 SSL_CTX_sess_connect_good(ssl_ctx));
1946         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1947                 SSL_CTX_sess_accept(ssl_ctx));
1948         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1949                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1950         BIO_printf(bio,"%4ld server accepts that finished\n",
1951                 SSL_CTX_sess_accept_good(ssl_ctx));
1952         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1953         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1954         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1955         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1956         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1957                 SSL_CTX_sess_cache_full(ssl_ctx),
1958                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1959         }
1960
1961 static int sv_body(char *hostname, int s, unsigned char *context)
1962         {
1963         char *buf=NULL;
1964         fd_set readfds;
1965         int ret=1,width;
1966         int k,i;
1967         unsigned long l;
1968         SSL *con=NULL;
1969         BIO *sbio;
1970 #ifndef OPENSSL_NO_KRB5
1971         KSSL_CTX *kctx;
1972 #endif
1973         struct timeval timeout;
1974 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1975         struct timeval tv;
1976 #else
1977         struct timeval *timeoutp;
1978 #endif
1979
1980         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1981                 {
1982                 BIO_printf(bio_err,"out of memory\n");
1983                 goto err;
1984                 }
1985 #ifdef FIONBIO
1986         if (s_nbio)
1987                 {
1988                 unsigned long sl=1;
1989
1990                 if (!s_quiet)
1991                         BIO_printf(bio_err,"turning on non blocking io\n");
1992                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1993                         ERR_print_errors(bio_err);
1994                 }
1995 #endif
1996
1997         if (con == NULL) {
1998                 con=SSL_new(ctx);
1999 #ifndef OPENSSL_NO_TLSEXT
2000         if (s_tlsextdebug)
2001                 {
2002                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2003                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2004                 }
2005         if (s_tlsextstatus)
2006                 {
2007                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2008                 tlscstatp.err = bio_err;
2009                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2010                 }
2011 #endif
2012 #ifndef OPENSSL_NO_KRB5
2013                 if ((kctx = kssl_ctx_new()) != NULL)
2014                         {
2015                         SSL_set0_kssl_ctx(con, kctx);
2016                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2017                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2018                         }
2019 #endif  /* OPENSSL_NO_KRB5 */
2020                 if(context)
2021                       SSL_set_session_id_context(con, context,
2022                                                  strlen((char *)context));
2023         }
2024         SSL_clear(con);
2025 #if 0
2026 #ifdef TLSEXT_TYPE_opaque_prf_input
2027         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2028 #endif
2029 #endif
2030
2031         if (SSL_version(con) == DTLS1_VERSION)
2032                 {
2033
2034                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2035
2036                 if (enable_timeouts)
2037                         {
2038                         timeout.tv_sec = 0;
2039                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2040                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2041
2042                         timeout.tv_sec = 0;
2043                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2044                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2045                         }
2046
2047                 if (socket_mtu > 28)
2048                         {
2049                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2050                         SSL_set_mtu(con, socket_mtu - 28);
2051                         }
2052                 else
2053                         /* want to do MTU discovery */
2054                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2055
2056         /* turn on cookie exchange */
2057         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2058                 }
2059         else
2060                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2061
2062         if (s_nbio_test)
2063                 {
2064                 BIO *test;
2065
2066                 test=BIO_new(BIO_f_nbio_test());
2067                 sbio=BIO_push(test,sbio);
2068                 }
2069 #ifndef OPENSSL_NO_JPAKE
2070         if(jpake_secret)
2071                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2072 #endif
2073
2074         SSL_set_bio(con,sbio,sbio);
2075         SSL_set_accept_state(con);
2076         /* SSL_set_fd(con,s); */
2077
2078         if (s_debug)
2079                 {
2080                 SSL_set_debug(con, 1);
2081                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2082                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2083                 }
2084         if (s_msg)
2085                 {
2086                 SSL_set_msg_callback(con, msg_cb);
2087                 SSL_set_msg_callback_arg(con, bio_s_out);
2088                 }
2089 #ifndef OPENSSL_NO_TLSEXT
2090         if (s_tlsextdebug)
2091                 {
2092                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2093                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2094                 }
2095 #endif
2096
2097         width=s+1;
2098         for (;;)
2099                 {
2100                 int read_from_terminal;
2101                 int read_from_sslcon;
2102
2103                 read_from_terminal = 0;
2104                 read_from_sslcon = SSL_pending(con);
2105
2106                 if (!read_from_sslcon)
2107                         {
2108                         FD_ZERO(&readfds);
2109 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2110                         openssl_fdset(fileno(stdin),&readfds);
2111 #endif
2112                         openssl_fdset(s,&readfds);
2113                         /* Note: under VMS with SOCKETSHR the second parameter is
2114                          * currently of type (int *) whereas under other systems
2115                          * it is (void *) if you don't have a cast it will choke
2116                          * the compiler: if you do have a cast then you can either
2117                          * go for (int *) or (void *).
2118                          */
2119 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2120                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2121                          * on sockets. As a workaround we timeout the select every
2122                          * second and check for any keypress. In a proper Windows
2123                          * application we wouldn't do this because it is inefficient.
2124                          */
2125                         tv.tv_sec = 1;
2126                         tv.tv_usec = 0;
2127                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2128                         if((i < 0) || (!i && !_kbhit() ) )continue;
2129                         if(_kbhit())
2130                                 read_from_terminal = 1;
2131 #elif defined(OPENSSL_SYS_BEOS_R5)
2132                         /* Under BeOS-R5 the situation is similar to DOS */
2133                         tv.tv_sec = 1;
2134                         tv.tv_usec = 0;
2135                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2136                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2137                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2138                                 continue;
2139                         if (read(fileno(stdin), buf, 0) >= 0)
2140                                 read_from_terminal = 1;
2141                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2142 #else
2143                         if ((SSL_version(con) == DTLS1_VERSION) &&
2144                                 DTLSv1_get_timeout(con, &timeout))
2145                                 timeoutp = &timeout;
2146                         else
2147                                 timeoutp = NULL;
2148
2149                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2150
2151                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2152                                 {
2153                                 BIO_printf(bio_err,"TIMEOUT occured\n");
2154                                 }
2155
2156                         if (i <= 0) continue;
2157                         if (FD_ISSET(fileno(stdin),&readfds))
2158                                 read_from_terminal = 1;
2159 #endif
2160                         if (FD_ISSET(s,&readfds))
2161                                 read_from_sslcon = 1;
2162                         }
2163                 if (read_from_terminal)
2164                         {
2165                         if (s_crlf)
2166                                 {
2167                                 int j, lf_num;
2168
2169                                 i=raw_read_stdin(buf, bufsize/2);
2170                                 lf_num = 0;
2171                                 /* both loops are skipped when i <= 0 */
2172                                 for (j = 0; j < i; j++)
2173                                         if (buf[j] == '\n')
2174                                                 lf_num++;
2175                                 for (j = i-1; j >= 0; j--)
2176                                         {
2177                                         buf[j+lf_num] = buf[j];
2178                                         if (buf[j] == '\n')
2179                                                 {
2180                                                 lf_num--;
2181                                                 i++;
2182                                                 buf[j+lf_num] = '\r';
2183                                                 }
2184                                         }
2185                                 assert(lf_num == 0);
2186                                 }
2187                         else
2188                                 i=raw_read_stdin(buf,bufsize);
2189                         if (!s_quiet)
2190                                 {
2191                                 if ((i <= 0) || (buf[0] == 'Q'))
2192                                         {
2193                                         BIO_printf(bio_s_out,"DONE\n");
2194                                         SHUTDOWN(s);
2195                                         close_accept_socket();
2196                                         ret= -11;
2197                                         goto err;
2198                                         }
2199                                 if ((i <= 0) || (buf[0] == 'q'))
2200                                         {
2201                                         BIO_printf(bio_s_out,"DONE\n");
2202                                         if (SSL_version(con) != DTLS1_VERSION)
2203                         SHUTDOWN(s);
2204         /*                              close_accept_socket();
2205                                         ret= -11;*/
2206                                         goto err;
2207                                         }
2208
2209                                 if ((buf[0] == 'r') &&
2210                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2211                                         {
2212                                         SSL_renegotiate(con);
2213                                         i=SSL_do_handshake(con);
2214                                         printf("SSL_do_handshake -> %d\n",i);
2215                                         i=0; /*13; */
2216                                         continue;
2217                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2218                                         }
2219                                 if ((buf[0] == 'R') &&
2220                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2221                                         {
2222                                         SSL_set_verify(con,
2223                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2224                                         SSL_renegotiate(con);
2225                                         i=SSL_do_handshake(con);
2226                                         printf("SSL_do_handshake -> %d\n",i);
2227                                         i=0; /* 13; */
2228                                         continue;
2229                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2230                                         }
2231                                 if (buf[0] == 'P')
2232                                         {
2233                                         static const char *str="Lets print some clear text\n";
2234                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2235                                         }
2236                                 if (buf[0] == 'S')
2237                                         {
2238                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2239                                         }
2240                                 }
2241 #ifdef CHARSET_EBCDIC
2242                         ebcdic2ascii(buf,buf,i);
2243 #endif
2244                         l=k=0;
2245                         for (;;)
2246                                 {
2247                                 /* should do a select for the write */
2248 #ifdef RENEG
2249 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2250 #endif
2251                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2252                                 switch (SSL_get_error(con,k))
2253                                         {
2254                                 case SSL_ERROR_NONE:
2255                                         break;
2256                                 case SSL_ERROR_WANT_WRITE:
2257                                 case SSL_ERROR_WANT_READ:
2258                                 case SSL_ERROR_WANT_X509_LOOKUP:
2259                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2260                                         break;
2261                                 case SSL_ERROR_SYSCALL:
2262                                 case SSL_ERROR_SSL:
2263                                         BIO_printf(bio_s_out,"ERROR\n");
2264                                         ERR_print_errors(bio_err);
2265                                         ret=1;
2266                                         goto err;
2267                                         /* break; */
2268                                 case SSL_ERROR_ZERO_RETURN:
2269                                         BIO_printf(bio_s_out,"DONE\n");
2270                                         ret=1;
2271                                         goto err;
2272                                         }
2273                                 l+=k;
2274                                 i-=k;
2275                                 if (i <= 0) break;
2276                                 }
2277                         }
2278                 if (read_from_sslcon)
2279                         {
2280                         if (!SSL_is_init_finished(con))
2281                                 {
2282                                 i=init_ssl_connection(con);
2283
2284                                 if (i < 0)
2285                                         {
2286                                         ret=0;
2287                                         goto err;
2288                                         }
2289                                 else if (i == 0)
2290                                         {
2291                                         ret=1;
2292                                         goto err;
2293                                         }
2294                                 }
2295                         else
2296                                 {
2297 again:
2298                                 i=SSL_read(con,(char *)buf,bufsize);
2299                                 switch (SSL_get_error(con,i))
2300                                         {
2301                                 case SSL_ERROR_NONE:
2302 #ifdef CHARSET_EBCDIC
2303                                         ascii2ebcdic(buf,buf,i);
2304 #endif
2305                                         raw_write_stdout(buf,
2306                                                 (unsigned int)i);
2307                                         if (SSL_pending(con)) goto again;
2308                                         break;
2309                                 case SSL_ERROR_WANT_WRITE:
2310                                 case SSL_ERROR_WANT_READ:
2311                                 case SSL_ERROR_WANT_X509_LOOKUP:
2312                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2313                                         break;
2314                                 case SSL_ERROR_SYSCALL:
2315                                 case SSL_ERROR_SSL:
2316                                         BIO_printf(bio_s_out,"ERROR\n");
2317                                         ERR_print_errors(bio_err);
2318                                         ret=1;
2319                                         goto err;
2320                                 case SSL_ERROR_ZERO_RETURN:
2321                                         BIO_printf(bio_s_out,"DONE\n");
2322                                         ret=1;
2323                                         goto err;
2324                                         }
2325                                 }
2326                         }
2327                 }
2328 err:
2329         if (con != NULL)
2330                 {
2331                 BIO_printf(bio_s_out,"shutting down SSL\n");
2332 #if 1
2333                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2334 #else
2335                 SSL_shutdown(con);
2336 #endif
2337                 SSL_free(con);
2338                 }
2339         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2340         if (buf != NULL)
2341                 {
2342                 OPENSSL_cleanse(buf,bufsize);
2343                 OPENSSL_free(buf);
2344                 }
2345         if (ret >= 0)
2346                 BIO_printf(bio_s_out,"ACCEPT\n");
2347         return(ret);
2348         }
2349
2350 static void close_accept_socket(void)
2351         {
2352         BIO_printf(bio_err,"shutdown accept socket\n");
2353         if (accept_socket >= 0)
2354                 {
2355                 SHUTDOWN2(accept_socket);
2356                 }
2357         }
2358
2359 static int init_ssl_connection(SSL *con)
2360         {
2361         int i;
2362         const char *str;
2363         X509 *peer;
2364         long verify_error;
2365         MS_STATIC char buf[BUFSIZ];
2366 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2367         const unsigned char *next_proto_neg;
2368         unsigned next_proto_neg_len;
2369 #endif
2370 #ifndef OPENSSL_NO_KRB5
2371         char *client_princ;
2372 #endif
2373         unsigned char *exportedkeymat;
2374
2375
2376         if ((i=SSL_accept(con)) <= 0)
2377                 {
2378                 if (BIO_sock_should_retry(i))
2379                         {
2380                         BIO_printf(bio_s_out,"DELAY\n");
2381                         return(1);
2382                         }
2383
2384                 BIO_printf(bio_err,"ERROR\n");
2385                 verify_error=SSL_get_verify_result(con);
2386                 if (verify_error != X509_V_OK)
2387                         {
2388                         BIO_printf(bio_err,"verify error:%s\n",
2389                                 X509_verify_cert_error_string(verify_error));
2390                         }
2391                 else
2392                         ERR_print_errors(bio_err);
2393                 return(0);
2394                 }
2395
2396         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2397
2398         peer=SSL_get_peer_certificate(con);
2399         if (peer != NULL)
2400                 {
2401                 BIO_printf(bio_s_out,"Client certificate\n");
2402                 PEM_write_bio_X509(bio_s_out,peer);
2403                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2404                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2405                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2406                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2407                 X509_free(peer);
2408                 }
2409
2410         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2411                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2412         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2413         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2414 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2415         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2416         if (next_proto_neg)
2417                 {
2418                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2419                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2420                 BIO_printf(bio_s_out, "\n");
2421                 }
2422 #endif
2423         {
2424         SRTP_PROTECTION_PROFILE *srtp_profile
2425           = SSL_get_selected_srtp_profile(con);
2426
2427         if(srtp_profile)
2428                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2429                            srtp_profile->name);
2430         }
2431         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2432         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2433                 TLS1_FLAGS_TLS_PADDING_BUG)
2434                 BIO_printf(bio_s_out,
2435                            "Peer has incorrect TLSv1 block padding\n");
2436 #ifndef OPENSSL_NO_KRB5
2437         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2438         if (client_princ != NULL)
2439                 {
2440                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2441                                                                 client_princ);
2442                 }
2443 #endif /* OPENSSL_NO_KRB5 */
2444         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2445                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2446         if (keymatexportlabel != NULL) {
2447                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2448                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2449                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2450                            keymatexportlen);
2451                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2452                 if (exportedkeymat != NULL) {
2453                         i = SSL_export_keying_material(con, exportedkeymat,
2454                                                        keymatexportlen,
2455                                                        keymatexportlabel,
2456                                                      strlen(keymatexportlabel),
2457                                                        NULL, 0, 0);
2458                         if (i != keymatexportlen) {
2459                                 BIO_printf(bio_s_out,
2460                                            "    Error: return value %i\n", i);
2461                         } else {
2462                                 BIO_printf(bio_s_out, "    Keying material: ");
2463                                 for (i=0; i<keymatexportlen; i++)
2464                                         BIO_printf(bio_s_out, "%02X",
2465                                                    exportedkeymat[i]);
2466                                 BIO_printf(bio_s_out, "\n");
2467                         }
2468                         OPENSSL_free(exportedkeymat);
2469                 }
2470         }
2471
2472         return(1);
2473         }
2474
2475 #ifndef OPENSSL_NO_DH
2476 static DH *load_dh_param(const char *dhfile)
2477         {
2478         DH *ret=NULL;
2479         BIO *bio;
2480
2481         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2482                 goto err;
2483         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2484 err:
2485         if (bio != NULL) BIO_free(bio);
2486         return(ret);
2487         }
2488 #endif
2489
2490 #if 0
2491 static int load_CA(SSL_CTX *ctx, char *file)
2492         {
2493         FILE *in;
2494         X509 *x=NULL;
2495
2496         if ((in=fopen(file,"r")) == NULL)
2497                 return(0);
2498
2499         for (;;)
2500                 {
2501                 if (PEM_read_X509(in,&x,NULL) == NULL)
2502                         break;
2503                 SSL_CTX_add_client_CA(ctx,x);
2504                 }
2505         if (x != NULL) X509_free(x);
2506         fclose(in);
2507         return(1);
2508         }
2509 #endif
2510
2511 static int www_body(char *hostname, int s, unsigned char *context)
2512         {
2513         char *buf=NULL;
2514         int ret=1;
2515         int i,j,k,dot;
2516         SSL *con;
2517         const SSL_CIPHER *c;
2518         BIO *io,*ssl_bio,*sbio;
2519 #ifndef OPENSSL_NO_KRB5
2520         KSSL_CTX *kctx;
2521 #endif
2522
2523         buf=OPENSSL_malloc(bufsize);
2524         if (buf == NULL) return(0);
2525         io=BIO_new(BIO_f_buffer());
2526         ssl_bio=BIO_new(BIO_f_ssl());
2527         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2528
2529 #ifdef FIONBIO
2530         if (s_nbio)
2531                 {
2532                 unsigned long sl=1;
2533
2534                 if (!s_quiet)
2535                         BIO_printf(bio_err,"turning on non blocking io\n");
2536                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2537                         ERR_print_errors(bio_err);
2538                 }
2539 #endif
2540
2541         /* lets make the output buffer a reasonable size */
2542         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2543
2544         if ((con=SSL_new(ctx)) == NULL) goto err;
2545 #ifndef OPENSSL_NO_TLSEXT
2546                 if (s_tlsextdebug)
2547                         {
2548                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2549                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2550                         }
2551 #endif
2552 #ifndef OPENSSL_NO_KRB5
2553         if ((kctx = kssl_ctx_new()) != NULL)
2554                 {
2555                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2556                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2557                 }
2558 #endif  /* OPENSSL_NO_KRB5 */
2559         if(context) SSL_set_session_id_context(con, context,
2560                                                strlen((char *)context));
2561
2562         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2563         if (s_nbio_test)
2564                 {
2565                 BIO *test;
2566
2567                 test=BIO_new(BIO_f_nbio_test());
2568                 sbio=BIO_push(test,sbio);
2569                 }
2570         SSL_set_bio(con,sbio,sbio);
2571         SSL_set_accept_state(con);
2572         /* SSL_set_fd(con,s); */
2573         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2574         BIO_push(io,ssl_bio);
2575 #ifdef CHARSET_EBCDIC
2576         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2577 #endif
2578
2579         if (s_debug)
2580                 {
2581                 SSL_set_debug(con, 1);
2582                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2583                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2584                 }
2585         if (s_msg)
2586                 {
2587                 SSL_set_msg_callback(con, msg_cb);
2588                 SSL_set_msg_callback_arg(con, bio_s_out);
2589                 }
2590
2591         for (;;)
2592                 {
2593                 if (hack)
2594                         {
2595                         i=SSL_accept(con);
2596
2597                         switch (SSL_get_error(con,i))
2598                                 {
2599                         case SSL_ERROR_NONE:
2600                                 break;
2601                         case SSL_ERROR_WANT_WRITE:
2602                         case SSL_ERROR_WANT_READ:
2603                         case SSL_ERROR_WANT_X509_LOOKUP:
2604                                 continue;
2605                         case SSL_ERROR_SYSCALL:
2606                         case SSL_ERROR_SSL:
2607                         case SSL_ERROR_ZERO_RETURN:
2608                                 ret=1;
2609                                 goto err;
2610                                 /* break; */
2611                                 }
2612
2613                         SSL_renegotiate(con);
2614                         SSL_write(con,NULL,0);
2615                         }
2616
2617                 i=BIO_gets(io,buf,bufsize-1);
2618                 if (i < 0) /* error */
2619                         {
2620                         if (!BIO_should_retry(io))
2621                                 {
2622                                 if (!s_quiet)
2623                                         ERR_print_errors(bio_err);
2624                                 goto err;
2625                                 }
2626                         else
2627                                 {
2628                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2629 #if defined(OPENSSL_SYS_NETWARE)
2630             delay(1000);
2631 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2632                                 sleep(1);
2633 #endif
2634                                 continue;
2635                                 }
2636                         }
2637                 else if (i == 0) /* end of input */
2638                         {
2639                         ret=1;
2640                         goto end;
2641                         }
2642
2643                 /* else we have data */
2644                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2645                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2646                         {
2647                         char *p;
2648                         X509 *peer;
2649                         STACK_OF(SSL_CIPHER) *sk;
2650                         static const char *space="                          ";
2651
2652                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
2653                         {
2654                         if (strncmp("GET /renegcert", buf, 14) == 0)
2655                                 SSL_set_verify(con,
2656                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2657                         i=SSL_renegotiate(con);
2658                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
2659                         i=SSL_do_handshake(con);
2660                         if (i <= 0)
2661                                 {
2662                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2663                                 ERR_print_errors(bio_err);
2664                                 goto err;
2665                                 }
2666                         /* EVIL HACK! */
2667                         SSL_set_state(con, SSL_ST_ACCEPT);
2668                         i=SSL_do_handshake(con);
2669                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
2670                         if (i <= 0)
2671                                 {
2672                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2673                                 ERR_print_errors(bio_err);
2674                                 goto err;
2675                                 }
2676                         }
2677
2678                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2679                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2680                         BIO_puts(io,"<pre>\n");
2681 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2682                         BIO_puts(io,"\n");
2683                         for (i=0; i<local_argc; i++)
2684                                 {
2685                                 BIO_puts(io,local_argv[i]);
2686                                 BIO_write(io," ",1);
2687                                 }
2688                         BIO_puts(io,"\n");
2689
2690                         BIO_printf(io,
2691                                 "Secure Renegotiation IS%s supported\n",
2692                                 SSL_get_secure_renegotiation_support(con) ?
2693                                                         "" : " NOT");
2694
2695                         /* The following is evil and should not really
2696                          * be done */
2697                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2698                         sk=SSL_get_ciphers(con);
2699                         j=sk_SSL_CIPHER_num(sk);
2700                         for (i=0; i<j; i++)
2701                                 {
2702                                 c=sk_SSL_CIPHER_value(sk,i);
2703                                 BIO_printf(io,"%-11s:%-25s",
2704                                         SSL_CIPHER_get_version(c),
2705                                         SSL_CIPHER_get_name(c));
2706                                 if ((((i+1)%2) == 0) && (i+1 != j))
2707                                         BIO_puts(io,"\n");
2708                                 }
2709                         BIO_puts(io,"\n");
2710                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2711                         if (p != NULL)
2712                                 {
2713                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2714                                 j=i=0;
2715                                 while (*p)
2716                                         {
2717                                         if (*p == ':')
2718                                                 {
2719                                                 BIO_write(io,space,26-j);
2720                                                 i++;
2721                                                 j=0;
2722                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2723                                                 }
2724                                         else
2725                                                 {
2726                                                 BIO_write(io,p,1);
2727                                                 j++;
2728                                                 }
2729                                         p++;
2730                                         }
2731                                 BIO_puts(io,"\n");
2732                                 }
2733                         BIO_printf(io,(SSL_cache_hit(con)
2734                                 ?"---\nReused, "
2735                                 :"---\nNew, "));
2736                         c=SSL_get_current_cipher(con);
2737                         BIO_printf(io,"%s, Cipher is %s\n",
2738                                 SSL_CIPHER_get_version(c),
2739                                 SSL_CIPHER_get_name(c));
2740                         SSL_SESSION_print(io,SSL_get_session(con));
2741                         BIO_printf(io,"---\n");
2742                         print_stats(io,SSL_get_SSL_CTX(con));
2743                         BIO_printf(io,"---\n");
2744                         peer=SSL_get_peer_certificate(con);
2745                         if (peer != NULL)
2746                                 {
2747                                 BIO_printf(io,"Client certificate\n");
2748                                 X509_print(io,peer);
2749                                 PEM_write_bio_X509(io,peer);
2750                                 }
2751                         else
2752                                 BIO_puts(io,"no client certificate available\n");
2753                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2754                         break;
2755                         }
2756                 else if ((www == 2 || www == 3)
2757                          && (strncmp("GET /",buf,5) == 0))
2758                         {
2759                         BIO *file;
2760                         char *p,*e;
2761                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2762
2763                         /* skip the '/' */
2764                         p= &(buf[5]);
2765
2766                         dot = 1;
2767                         for (e=p; *e != '\0'; e++)
2768                                 {
2769                                 if (e[0] == ' ')
2770                                         break;
2771
2772                                 switch (dot)
2773                                         {
2774                                 case 1:
2775                                         dot = (e[0] == '.') ? 2 : 0;
2776                                         break;
2777                                 case 2:
2778                                         dot = (e[0] == '.') ? 3 : 0;
2779                                         break;
2780                                 case 3:
2781                                         dot = (e[0] == '/') ? -1 : 0;
2782                                         break;
2783                                         }
2784                                 if (dot == 0)
2785                                         dot = (e[0] == '/') ? 1 : 0;
2786                                 }
2787                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2788
2789                         if (*e == '\0')
2790                                 {
2791                                 BIO_puts(io,text);
2792                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2793                                 break;
2794                                 }
2795                         *e='\0';
2796
2797                         if (dot)
2798                                 {
2799                                 BIO_puts(io,text);
2800                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2801                                 break;
2802                                 }
2803
2804                         if (*p == '/')
2805                                 {
2806                                 BIO_puts(io,text);
2807                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2808                                 break;
2809                                 }
2810
2811 #if 0
2812                         /* append if a directory lookup */
2813                         if (e[-1] == '/')
2814                                 strcat(p,"index.html");
2815 #endif
2816
2817                         /* if a directory, do the index thang */
2818                         if (app_isdir(p)>0)
2819                                 {
2820 #if 0 /* must check buffer size */
2821                                 strcat(p,"/index.html");
2822 #else
2823                                 BIO_puts(io,text);
2824                                 BIO_printf(io,"'%s' is a directory\r\n",p);
2825                                 break;
2826 #endif
2827                                 }
2828
2829                         if ((file=BIO_new_file(p,"r")) == NULL)
2830                                 {
2831                                 BIO_puts(io,text);
2832                                 BIO_printf(io,"Error opening '%s'\r\n",p);
2833                                 ERR_print_errors(io);
2834                                 break;
2835                                 }
2836
2837                         if (!s_quiet)
2838                                 BIO_printf(bio_err,"FILE:%s\n",p);
2839
2840                         if (www == 2)
2841                                 {
2842                                 i=strlen(p);
2843                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2844                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2845                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2846                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2847                                 else
2848                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2849                                 }
2850                         /* send the file */
2851                         for (;;)
2852                                 {
2853                                 i=BIO_read(file,buf,bufsize);
2854                                 if (i <= 0) break;
2855
2856 #ifdef RENEG
2857                                 total_bytes+=i;
2858                                 fprintf(stderr,"%d\n",i);
2859                                 if (total_bytes > 3*1024)
2860                                         {
2861                                         total_bytes=0;
2862                                         fprintf(stderr,"RENEGOTIATE\n");
2863                                         SSL_renegotiate(con);
2864                                         }
2865 #endif
2866
2867                                 for (j=0; j<i; )
2868                                         {
2869 #ifdef RENEG
2870 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2871 #endif
2872                                         k=BIO_write(io,&(buf[j]),i-j);
2873                                         if (k <= 0)
2874                                                 {
2875                                                 if (!BIO_should_retry(io))
2876                                                         goto write_error;
2877                                                 else
2878                                                         {
2879                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2880                                                         }
2881                                                 }
2882                                         else
2883                                                 {
2884                                                 j+=k;
2885                                                 }
2886                                         }
2887                                 }
2888 write_error:
2889                         BIO_free(file);
2890                         break;
2891                         }
2892                 }
2893
2894         for (;;)
2895                 {
2896                 i=(int)BIO_flush(io);
2897                 if (i <= 0)
2898                         {
2899                         if (!BIO_should_retry(io))
2900                                 break;
2901                         }
2902                 else
2903                         break;
2904                 }
2905 end:
2906 #if 1
2907         /* make sure we re-use sessions */
2908         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2909 #else
2910         /* This kills performance */
2911 /*      SSL_shutdown(con); A shutdown gets sent in the
2912  *      BIO_free_all(io) procession */
2913 #endif
2914
2915 err:
2916
2917         if (ret >= 0)
2918                 BIO_printf(bio_s_out,"ACCEPT\n");
2919
2920         if (buf != NULL) OPENSSL_free(buf);
2921         if (io != NULL) BIO_free_all(io);
2922 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2923         return(ret);
2924         }
2925
2926 #ifndef OPENSSL_NO_RSA
2927 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2928         {
2929         BIGNUM *bn = NULL;
2930         static RSA *rsa_tmp=NULL;
2931
2932         if (!rsa_tmp && ((bn = BN_new()) == NULL))
2933                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
2934         if (!rsa_tmp && bn)
2935                 {
2936                 if (!s_quiet)
2937                         {
2938                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
2939                         (void)BIO_flush(bio_err);
2940                         }
2941                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2942                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
2943                         {
2944                         if(rsa_tmp) RSA_free(rsa_tmp);
2945                         rsa_tmp = NULL;
2946                         }
2947                 if (!s_quiet)
2948                         {
2949                         BIO_printf(bio_err,"\n");
2950                         (void)BIO_flush(bio_err);
2951                         }
2952                 BN_free(bn);
2953                 }
2954         return(rsa_tmp);
2955         }
2956 #endif
2957
2958 #define MAX_SESSION_ID_ATTEMPTS 10
2959 static int generate_session_id(const SSL *ssl, unsigned char *id,
2960                                 unsigned int *id_len)
2961         {
2962         unsigned int count = 0;
2963         do      {
2964                 RAND_pseudo_bytes(id, *id_len);
2965                 /* Prefix the session_id with the required prefix. NB: If our
2966                  * prefix is too long, clip it - but there will be worse effects
2967                  * anyway, eg. the server could only possibly create 1 session
2968                  * ID (ie. the prefix!) so all future session negotiations will
2969                  * fail due to conflicts. */
2970                 memcpy(id, session_id_prefix,
2971                         (strlen(session_id_prefix) < *id_len) ?
2972                         strlen(session_id_prefix) : *id_len);
2973                 }
2974         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
2975                 (++count < MAX_SESSION_ID_ATTEMPTS));
2976         if(count >= MAX_SESSION_ID_ATTEMPTS)
2977                 return 0;
2978         return 1;
2979         }
2980
2981 /* By default s_server uses an in-memory cache which caches SSL_SESSION
2982  * structures without any serialisation. This hides some bugs which only
2983  * become apparent in deployed servers. By implementing a basic external
2984  * session cache some issues can be debugged using s_server.
2985  */
2986
2987 typedef struct simple_ssl_session_st
2988         {
2989         unsigned char *id;
2990         unsigned int idlen;
2991         unsigned char *der;
2992         int derlen;
2993         struct simple_ssl_session_st *next;
2994         } simple_ssl_session;
2995
2996 static simple_ssl_session *first = NULL;
2997
2998 static int add_session(SSL *ssl, SSL_SESSION *session)
2999         {
3000         simple_ssl_session *sess;
3001         unsigned char *p;
3002
3003         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3004
3005         sess->idlen = SSL_SESSION_get_id_len(session);
3006         sess->derlen = i2d_SSL_SESSION(session, NULL);
3007
3008         sess->id = BUF_memdup(SSL_SESSION_get0_id(session), sess->idlen);
3009
3010         sess->der = OPENSSL_malloc(sess->derlen);
3011         p = sess->der;
3012         i2d_SSL_SESSION(session, &p);
3013
3014         sess->next = first;
3015         first = sess;
3016         BIO_printf(bio_err, "New session added to external cache\n");
3017         return 0;
3018         }
3019
3020 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3021                                         int *do_copy)
3022         {
3023         simple_ssl_session *sess;
3024         *do_copy = 0;
3025         for (sess = first; sess; sess = sess->next)
3026                 {
3027                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3028                         {
3029                         const unsigned char *p = sess->der;
3030                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3031                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3032                         }
3033                 }
3034         BIO_printf(bio_err, "Lookup session: cache miss\n");
3035         return NULL;
3036         }
3037
3038 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3039         {
3040         simple_ssl_session *sess, *prev = NULL;
3041         const unsigned char *id = SSL_SESSION_get0_id(session);
3042         unsigned int idlen = SSL_SESSION_get_id_len(session);
3043         for (sess = first; sess; sess = sess->next)
3044                 {
3045                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
3046                         {
3047                         if(prev)
3048                                 prev->next = sess->next;
3049                         else
3050                                 first = sess->next;
3051                         OPENSSL_free(sess->id);
3052                         OPENSSL_free(sess->der);
3053                         OPENSSL_free(sess);
3054                         return;
3055                         }
3056                 prev = sess;
3057                 }
3058         }
3059
3060 static void init_session_cache_ctx(SSL_CTX *sctx)
3061         {
3062         SSL_CTX_set_session_cache_mode(sctx,
3063                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
3064         SSL_CTX_sess_set_new_cb(sctx, add_session);
3065         SSL_CTX_sess_set_get_cb(sctx, get_session);
3066         SSL_CTX_sess_set_remove_cb(sctx, del_session);
3067         }
3068
3069 static void free_sessions(void)
3070         {
3071         simple_ssl_session *sess, *tsess;
3072         for (sess = first; sess;)
3073                 {
3074                 OPENSSL_free(sess->id);
3075                 OPENSSL_free(sess->der);
3076                 tsess = sess;
3077                 sess = sess->next;
3078                 OPENSSL_free(tsess);
3079                 }
3080         first = NULL;
3081         }
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091