Don't allow -www etc options with DTLS.
[openssl.git] / apps / s_server.c
1 /* apps/s_server.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  * 
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  * 
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  * 
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from 
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  * 
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  * 
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 /* ====================================================================
59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
60  *
61  * Redistribution and use in source and binary forms, with or without
62  * modification, are permitted provided that the following conditions
63  * are met:
64  *
65  * 1. Redistributions of source code must retain the above copyright
66  *    notice, this list of conditions and the following disclaimer. 
67  *
68  * 2. Redistributions in binary form must reproduce the above copyright
69  *    notice, this list of conditions and the following disclaimer in
70  *    the documentation and/or other materials provided with the
71  *    distribution.
72  *
73  * 3. All advertising materials mentioning features or use of this
74  *    software must display the following acknowledgment:
75  *    "This product includes software developed by the OpenSSL Project
76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77  *
78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79  *    endorse or promote products derived from this software without
80  *    prior written permission. For written permission, please contact
81  *    openssl-core@openssl.org.
82  *
83  * 5. Products derived from this software may not be called "OpenSSL"
84  *    nor may "OpenSSL" appear in their names without prior written
85  *    permission of the OpenSSL Project.
86  *
87  * 6. Redistributions of any form whatsoever must retain the following
88  *    acknowledgment:
89  *    "This product includes software developed by the OpenSSL Project
90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91  *
92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103  * OF THE POSSIBILITY OF SUCH DAMAGE.
104  * ====================================================================
105  *
106  * This product includes cryptographic software written by Eric Young
107  * (eay@cryptsoft.com).  This product includes software written by Tim
108  * Hudson (tjh@cryptsoft.com).
109  *
110  */
111 /* ====================================================================
112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113  * ECC cipher suite support in OpenSSL originally developed by 
114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115  */
116 /* ====================================================================
117  * Copyright 2005 Nokia. All rights reserved.
118  *
119  * The portions of the attached software ("Contribution") is developed by
120  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
121  * license.
122  *
123  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
124  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
125  * support (see RFC 4279) to OpenSSL.
126  *
127  * No patent licenses or other rights except those expressly stated in
128  * the OpenSSL open source license shall be deemed granted or received
129  * expressly, by implication, estoppel, or otherwise.
130  *
131  * No assurances are provided by Nokia that the Contribution does not
132  * infringe the patent or other intellectual property rights of any third
133  * party or that the license provides you with all the necessary rights
134  * to make use of the Contribution.
135  *
136  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
137  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
138  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
139  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
140  * OTHERWISE.
141  */
142
143 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
144  * deprecated functions for openssl-internal code */
145 #ifdef OPENSSL_NO_DEPRECATED
146 #undef OPENSSL_NO_DEPRECATED
147 #endif
148
149 #include <assert.h>
150 #include <ctype.h>
151 #include <stdio.h>
152 #include <stdlib.h>
153 #include <string.h>
154
155 #include <openssl/e_os2.h>
156 #ifdef OPENSSL_NO_STDIO
157 #define APPS_WIN16
158 #endif
159
160 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
161 #include <sys/types.h>
162 #endif
163
164 /* With IPv6, it looks like Digital has mixed up the proper order of
165    recursive header file inclusion, resulting in the compiler complaining
166    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
167    is needed to have fileno() declared correctly...  So let's define u_int */
168 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
169 #define __U_INT
170 typedef unsigned int u_int;
171 #endif
172
173 #include <openssl/lhash.h>
174 #include <openssl/bn.h>
175 #define USE_SOCKETS
176 #include "apps.h"
177 #include <openssl/err.h>
178 #include <openssl/pem.h>
179 #include <openssl/x509.h>
180 #include <openssl/ssl.h>
181 #include <openssl/rand.h>
182 #include <openssl/ocsp.h>
183 #ifndef OPENSSL_NO_DH
184 #include <openssl/dh.h>
185 #endif
186 #ifndef OPENSSL_NO_RSA
187 #include <openssl/rsa.h>
188 #endif
189 #ifndef OPENSSL_NO_SRP
190 #include <openssl/srp.h>
191 #endif
192 #include "s_apps.h"
193 #include "timeouts.h"
194
195 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
196 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
197 #undef FIONBIO
198 #endif
199
200 #if defined(OPENSSL_SYS_BEOS_R5)
201 #include <fcntl.h>
202 #endif
203
204 #ifndef OPENSSL_NO_RSA
205 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
206 #endif
207 static int sv_body(char *hostname, int s, unsigned char *context);
208 static int www_body(char *hostname, int s, unsigned char *context);
209 static void close_accept_socket(void );
210 static void sv_usage(void);
211 static int init_ssl_connection(SSL *s);
212 static void print_stats(BIO *bp,SSL_CTX *ctx);
213 static int generate_session_id(const SSL *ssl, unsigned char *id,
214                                 unsigned int *id_len);
215 #ifndef OPENSSL_NO_DH
216 static DH *load_dh_param(const char *dhfile);
217 static DH *get_dh512(void);
218 #endif
219
220 #ifdef MONOLITH
221 static void s_server_init(void);
222 #endif
223
224 #ifndef OPENSSL_NO_DH
225 static unsigned char dh512_p[]={
226         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
227         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
228         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
229         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
230         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
231         0x47,0x74,0xE8,0x33,
232         };
233 static unsigned char dh512_g[]={
234         0x02,
235         };
236
237 static DH *get_dh512(void)
238         {
239         DH *dh=NULL;
240
241         if ((dh=DH_new()) == NULL) return(NULL);
242         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
243         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
244         if ((dh->p == NULL) || (dh->g == NULL))
245                 return(NULL);
246         return(dh);
247         }
248 #endif
249
250
251 /* static int load_CA(SSL_CTX *ctx, char *file);*/
252
253 #undef BUFSIZZ
254 #define BUFSIZZ 16*1024
255 static int bufsize=BUFSIZZ;
256 static int accept_socket= -1;
257
258 #define TEST_CERT       "server.pem"
259 #ifndef OPENSSL_NO_TLSEXT
260 #define TEST_CERT2      "server2.pem"
261 #endif
262 #undef PROG
263 #define PROG            s_server_main
264
265 extern int verify_depth, verify_return_error;
266
267 static char *cipher=NULL;
268 static int s_server_verify=SSL_VERIFY_NONE;
269 static int s_server_session_id_context = 1; /* anything will do */
270 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
271 #ifndef OPENSSL_NO_TLSEXT
272 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
273 #endif
274 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
275 #ifdef FIONBIO
276 static int s_nbio=0;
277 #endif
278 static int s_nbio_test=0;
279 int s_crlf=0;
280 static SSL_CTX *ctx=NULL;
281 #ifndef OPENSSL_NO_TLSEXT
282 static SSL_CTX *ctx2=NULL;
283 #endif
284 static int www=0;
285
286 static BIO *bio_s_out=NULL;
287 static int s_debug=0;
288 #ifndef OPENSSL_NO_TLSEXT
289 static int s_tlsextdebug=0;
290 static int s_tlsextstatus=0;
291 static int cert_status_cb(SSL *s, void *arg);
292 #endif
293 static int s_msg=0;
294 static int s_quiet=0;
295
296 static char *keymatexportlabel=NULL;
297 static int keymatexportlen=20;
298
299 static int hack=0;
300 #ifndef OPENSSL_NO_ENGINE
301 static char *engine_id=NULL;
302 #endif
303 static const char *session_id_prefix=NULL;
304
305 static int enable_timeouts = 0;
306 static long socket_mtu;
307 #ifndef OPENSSL_NO_DTLS1
308 static int cert_chain = 0;
309 #endif
310
311
312 #ifndef OPENSSL_NO_PSK
313 static char *psk_identity="Client_identity";
314 char *psk_key=NULL; /* by default PSK is not used */
315
316 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
317         unsigned char *psk, unsigned int max_psk_len)
318         {
319         unsigned int psk_len = 0;
320         int ret;
321         BIGNUM *bn = NULL;
322
323         if (s_debug)
324                 BIO_printf(bio_s_out,"psk_server_cb\n");
325         if (!identity)
326                 {
327                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
328                 goto out_err;
329                 }
330         if (s_debug)
331                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
332                         identity ? (int)strlen(identity) : 0, identity);
333
334         /* here we could lookup the given identity e.g. from a database */
335         if (strcmp(identity, psk_identity) != 0)
336                 {
337                 BIO_printf(bio_s_out, "PSK error: client identity not found"
338                            " (got '%s' expected '%s')\n", identity,
339                            psk_identity);
340                 goto out_err;
341                 }
342         if (s_debug)
343                 BIO_printf(bio_s_out, "PSK client identity found\n");
344
345         /* convert the PSK key to binary */
346         ret = BN_hex2bn(&bn, psk_key);
347         if (!ret)
348                 {
349                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
350                 if (bn)
351                         BN_free(bn);
352                 return 0;
353                 }
354         if (BN_num_bytes(bn) > (int)max_psk_len)
355                 {
356                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
357                         max_psk_len, BN_num_bytes(bn));
358                 BN_free(bn);
359                 return 0;
360                 }
361
362         ret = BN_bn2bin(bn, psk);
363         BN_free(bn);
364
365         if (ret < 0)
366                 goto out_err;
367         psk_len = (unsigned int)ret;
368
369         if (s_debug)
370                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
371         return psk_len;
372  out_err:
373         if (s_debug)
374                 BIO_printf(bio_err, "Error in PSK server callback\n");
375         return 0;
376         }
377 #endif
378
379 #ifndef OPENSSL_NO_SRP
380 /* This is a context that we pass to callbacks */
381 typedef struct srpsrvparm_st
382         {
383         char *login;
384         SRP_VBASE *vb;
385         SRP_user_pwd *user;
386         } srpsrvparm;
387
388 /* This callback pretends to require some asynchronous logic in order to obtain
389    a verifier. When the callback is called for a new connection we return
390    with a negative value. This will provoke the accept etc to return with
391    an LOOKUP_X509. The main logic of the reinvokes the suspended call 
392    (which would normally occur after a worker has finished) and we
393    set the user parameters. 
394 */
395 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
396         {
397         srpsrvparm *p = (srpsrvparm *)arg;
398         if (p->login == NULL && p->user == NULL )
399                 {
400                 p->login = SSL_get_srp_username(s);
401                 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
402                 return (-1) ;
403                 }
404
405         if (p->user == NULL)
406                 {
407                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
408                 return SSL3_AL_FATAL;
409                 }
410         if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
411                                      p->user->info) < 0)
412                 {
413                 *ad = SSL_AD_INTERNAL_ERROR;
414                 return SSL3_AL_FATAL;
415                 }
416         BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
417         /* need to check whether there are memory leaks */
418         p->user = NULL;
419         p->login = NULL;
420         return SSL_ERROR_NONE;
421         }
422
423 #endif
424
425 #ifdef MONOLITH
426 static void s_server_init(void)
427         {
428         accept_socket=-1;
429         cipher=NULL;
430         s_server_verify=SSL_VERIFY_NONE;
431         s_dcert_file=NULL;
432         s_dkey_file=NULL;
433         s_cert_file=TEST_CERT;
434         s_key_file=NULL;
435 #ifndef OPENSSL_NO_TLSEXT
436         s_cert_file2=TEST_CERT2;
437         s_key_file2=NULL;
438         ctx2=NULL;
439 #endif
440 #ifdef FIONBIO
441         s_nbio=0;
442 #endif
443         s_nbio_test=0;
444         ctx=NULL;
445         www=0;
446
447         bio_s_out=NULL;
448         s_debug=0;
449         s_msg=0;
450         s_quiet=0;
451         hack=0;
452 #ifndef OPENSSL_NO_ENGINE
453         engine_id=NULL;
454 #endif
455         }
456 #endif
457
458 static void sv_usage(void)
459         {
460         BIO_printf(bio_err,"usage: s_server [args ...]\n");
461         BIO_printf(bio_err,"\n");
462         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
463         BIO_printf(bio_err," -context arg  - set session ID context\n");
464         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
465         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
466         BIO_printf(bio_err," -verify_return_error - return verification errors\n");
467         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
468         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
469         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
470                            "                 The CRL(s) are appended to the certificate file\n");
471         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
472                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
473                            "                 the certificate file.\n");
474         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
475         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
476         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
477         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
478         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
479         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
480         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
481         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
482         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
483         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
484         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
485         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
486 #ifndef OPENSSL_NO_ECDH
487         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
488                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
489                            "                 (default is nistp256).\n");
490 #endif
491 #ifdef FIONBIO
492         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
493 #endif
494         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
495         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
496         BIO_printf(bio_err," -debug        - Print more output\n");
497         BIO_printf(bio_err," -msg          - Show protocol messages\n");
498         BIO_printf(bio_err," -state        - Print the SSL states\n");
499         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
500         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
501         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
502         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
503         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
504         BIO_printf(bio_err," -quiet        - No server output\n");
505         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
506 #ifndef OPENSSL_NO_PSK
507         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
508         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
509 # ifndef OPENSSL_NO_JPAKE
510         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
511 # endif
512 #endif
513 #ifndef OPENSSL_NO_SRP
514         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
515         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
516 #endif
517         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
518         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
519         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
520         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
521         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
522         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
523         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
524         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
525         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
526         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
527         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
528         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
529         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
530         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
531 #ifndef OPENSSL_NO_DH
532         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
533 #endif
534 #ifndef OPENSSL_NO_ECDH
535         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
536 #endif
537         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
538         BIO_printf(bio_err," -hack         - workaround for early Netscape code\n");
539         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
540         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
541         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
542         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
543 #ifndef OPENSSL_NO_ENGINE
544         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
545 #endif
546         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
547         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
548 #ifndef OPENSSL_NO_TLSEXT
549         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
550         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
551         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
552         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
553         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
554         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
555         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
556         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
557         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
558 # ifndef OPENSSL_NO_NEXTPROTONEG
559         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
560 # endif
561 # ifndef OPENSSL_NO_SRTP
562         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
563 # endif
564 #endif
565         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
566         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
567         BIO_printf(bio_err," -status           - respond to certificate status requests\n");
568         BIO_printf(bio_err," -status_verbose   - enable status request verbose printout\n");
569         BIO_printf(bio_err," -status_timeout n - status request responder timeout\n");
570         BIO_printf(bio_err," -status_url URL   - status request fallback URL\n");
571         }
572
573 static int local_argc=0;
574 static char **local_argv;
575
576 #ifdef CHARSET_EBCDIC
577 static int ebcdic_new(BIO *bi);
578 static int ebcdic_free(BIO *a);
579 static int ebcdic_read(BIO *b, char *out, int outl);
580 static int ebcdic_write(BIO *b, const char *in, int inl);
581 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
582 static int ebcdic_gets(BIO *bp, char *buf, int size);
583 static int ebcdic_puts(BIO *bp, const char *str);
584
585 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
586 static BIO_METHOD methods_ebcdic=
587         {
588         BIO_TYPE_EBCDIC_FILTER,
589         "EBCDIC/ASCII filter",
590         ebcdic_write,
591         ebcdic_read,
592         ebcdic_puts,
593         ebcdic_gets,
594         ebcdic_ctrl,
595         ebcdic_new,
596         ebcdic_free,
597         };
598
599 typedef struct
600 {
601         size_t  alloced;
602         char    buff[1];
603 } EBCDIC_OUTBUFF;
604
605 BIO_METHOD *BIO_f_ebcdic_filter()
606 {
607         return(&methods_ebcdic);
608 }
609
610 static int ebcdic_new(BIO *bi)
611 {
612         EBCDIC_OUTBUFF *wbuf;
613
614         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
615         wbuf->alloced = 1024;
616         wbuf->buff[0] = '\0';
617
618         bi->ptr=(char *)wbuf;
619         bi->init=1;
620         bi->flags=0;
621         return(1);
622 }
623
624 static int ebcdic_free(BIO *a)
625 {
626         if (a == NULL) return(0);
627         if (a->ptr != NULL)
628                 OPENSSL_free(a->ptr);
629         a->ptr=NULL;
630         a->init=0;
631         a->flags=0;
632         return(1);
633 }
634         
635 static int ebcdic_read(BIO *b, char *out, int outl)
636 {
637         int ret=0;
638
639         if (out == NULL || outl == 0) return(0);
640         if (b->next_bio == NULL) return(0);
641
642         ret=BIO_read(b->next_bio,out,outl);
643         if (ret > 0)
644                 ascii2ebcdic(out,out,ret);
645         return(ret);
646 }
647
648 static int ebcdic_write(BIO *b, const char *in, int inl)
649 {
650         EBCDIC_OUTBUFF *wbuf;
651         int ret=0;
652         int num;
653         unsigned char n;
654
655         if ((in == NULL) || (inl <= 0)) return(0);
656         if (b->next_bio == NULL) return(0);
657
658         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
659
660         if (inl > (num = wbuf->alloced))
661         {
662                 num = num + num;  /* double the size */
663                 if (num < inl)
664                         num = inl;
665                 OPENSSL_free(wbuf);
666                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
667
668                 wbuf->alloced = num;
669                 wbuf->buff[0] = '\0';
670
671                 b->ptr=(char *)wbuf;
672         }
673
674         ebcdic2ascii(wbuf->buff, in, inl);
675
676         ret=BIO_write(b->next_bio, wbuf->buff, inl);
677
678         return(ret);
679 }
680
681 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
682 {
683         long ret;
684
685         if (b->next_bio == NULL) return(0);
686         switch (cmd)
687         {
688         case BIO_CTRL_DUP:
689                 ret=0L;
690                 break;
691         default:
692                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
693                 break;
694         }
695         return(ret);
696 }
697
698 static int ebcdic_gets(BIO *bp, char *buf, int size)
699 {
700         int i, ret=0;
701         if (bp->next_bio == NULL) return(0);
702 /*      return(BIO_gets(bp->next_bio,buf,size));*/
703         for (i=0; i<size-1; ++i)
704         {
705                 ret = ebcdic_read(bp,&buf[i],1);
706                 if (ret <= 0)
707                         break;
708                 else if (buf[i] == '\n')
709                 {
710                         ++i;
711                         break;
712                 }
713         }
714         if (i < size)
715                 buf[i] = '\0';
716         return (ret < 0 && i == 0) ? ret : i;
717 }
718
719 static int ebcdic_puts(BIO *bp, const char *str)
720 {
721         if (bp->next_bio == NULL) return(0);
722         return ebcdic_write(bp, str, strlen(str));
723 }
724 #endif
725
726 #ifndef OPENSSL_NO_TLSEXT
727
728 /* This is a context that we pass to callbacks */
729 typedef struct tlsextctx_st {
730    char * servername;
731    BIO * biodebug;
732    int extension_error;
733 } tlsextctx;
734
735
736 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
737         {
738         tlsextctx * p = (tlsextctx *) arg;
739         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
740         if (servername && p->biodebug) 
741                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
742         
743         if (!p->servername)
744                 return SSL_TLSEXT_ERR_NOACK;
745         
746         if (servername)
747                 {
748                 if (strcasecmp(servername,p->servername)) 
749                         return p->extension_error;
750                 if (ctx2)
751                         {
752                         BIO_printf(p->biodebug,"Switching server context.\n");
753                         SSL_set_SSL_CTX(s,ctx2);
754                         }     
755                 }
756         return SSL_TLSEXT_ERR_OK;
757 }
758
759 /* Structure passed to cert status callback */
760
761 typedef struct tlsextstatusctx_st {
762    /* Default responder to use */
763    char *host, *path, *port;
764    int use_ssl;
765    int timeout;
766    BIO *err;
767    int verbose;
768 } tlsextstatusctx;
769
770 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
771
772 /* Certificate Status callback. This is called when a client includes a
773  * certificate status request extension.
774  *
775  * This is a simplified version. It examines certificates each time and
776  * makes one OCSP responder query for each request.
777  *
778  * A full version would store details such as the OCSP certificate IDs and
779  * minimise the number of OCSP responses by caching them until they were
780  * considered "expired".
781  */
782
783 static int cert_status_cb(SSL *s, void *arg)
784         {
785         tlsextstatusctx *srctx = arg;
786         BIO *err = srctx->err;
787         char *host, *port, *path;
788         int use_ssl;
789         unsigned char *rspder = NULL;
790         int rspderlen;
791         STACK_OF(OPENSSL_STRING) *aia = NULL;
792         X509 *x = NULL;
793         X509_STORE_CTX inctx;
794         X509_OBJECT obj;
795         OCSP_REQUEST *req = NULL;
796         OCSP_RESPONSE *resp = NULL;
797         OCSP_CERTID *id = NULL;
798         STACK_OF(X509_EXTENSION) *exts;
799         int ret = SSL_TLSEXT_ERR_NOACK;
800         int i;
801 #if 0
802 STACK_OF(OCSP_RESPID) *ids;
803 SSL_get_tlsext_status_ids(s, &ids);
804 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
805 #endif
806         if (srctx->verbose)
807                 BIO_puts(err, "cert_status: callback called\n");
808         /* Build up OCSP query from server certificate */
809         x = SSL_get_certificate(s);
810         aia = X509_get1_ocsp(x);
811         if (aia)
812                 {
813                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
814                         &host, &port, &path, &use_ssl))
815                         {
816                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
817                         goto err;
818                         }
819                 if (srctx->verbose)
820                         BIO_printf(err, "cert_status: AIA URL: %s\n",
821                                         sk_OPENSSL_STRING_value(aia, 0));
822                 }
823         else
824                 {
825                 if (!srctx->host)
826                         {
827                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
828                         goto done;
829                         }
830                 host = srctx->host;
831                 path = srctx->path;
832                 port = srctx->port;
833                 use_ssl = srctx->use_ssl;
834                 }
835                 
836         if (!X509_STORE_CTX_init(&inctx,
837                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
838                                 NULL, NULL))
839                 goto err;
840         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
841                                 X509_get_issuer_name(x),&obj) <= 0)
842                 {
843                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
844                 X509_STORE_CTX_cleanup(&inctx);
845                 goto done;
846                 }
847         req = OCSP_REQUEST_new();
848         if (!req)
849                 goto err;
850         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
851         X509_free(obj.data.x509);
852         X509_STORE_CTX_cleanup(&inctx);
853         if (!id)
854                 goto err;
855         if (!OCSP_request_add0_id(req, id))
856                 goto err;
857         id = NULL;
858         /* Add any extensions to the request */
859         SSL_get_tlsext_status_exts(s, &exts);
860         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
861                 {
862                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
863                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
864                         goto err;
865                 }
866         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
867                                         srctx->timeout);
868         if (!resp)
869                 {
870                 BIO_puts(err, "cert_status: error querying responder\n");
871                 goto done;
872                 }
873         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
874         if (rspderlen <= 0)
875                 goto err;
876         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
877         if (srctx->verbose)
878                 {
879                 BIO_puts(err, "cert_status: ocsp response sent:\n");
880                 OCSP_RESPONSE_print(err, resp, 2);
881                 }
882         ret = SSL_TLSEXT_ERR_OK;
883         done:
884         if (ret != SSL_TLSEXT_ERR_OK)
885                 ERR_print_errors(err);
886         if (aia)
887                 {
888                 OPENSSL_free(host);
889                 OPENSSL_free(path);
890                 OPENSSL_free(port);
891                 X509_email_free(aia);
892                 }
893         if (id)
894                 OCSP_CERTID_free(id);
895         if (req)
896                 OCSP_REQUEST_free(req);
897         if (resp)
898                 OCSP_RESPONSE_free(resp);
899         return ret;
900         err:
901         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
902         goto done;
903         }
904
905 # ifndef OPENSSL_NO_NEXTPROTONEG
906 /* This is the context that we pass to next_proto_cb */
907 typedef struct tlsextnextprotoctx_st {
908         unsigned char *data;
909         unsigned int len;
910 } tlsextnextprotoctx;
911
912 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
913         {
914         tlsextnextprotoctx *next_proto = arg;
915
916         *data = next_proto->data;
917         *len = next_proto->len;
918
919         return SSL_TLSEXT_ERR_OK;
920         }
921 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
922
923
924 #endif
925
926 int MAIN(int, char **);
927
928 #ifndef OPENSSL_NO_JPAKE
929 static char *jpake_secret = NULL;
930 #endif
931 #ifndef OPENSSL_NO_SRP
932         static srpsrvparm srp_callback_parm;
933 #endif
934 #ifndef OPENSSL_NO_SRTP
935 static char *srtp_profiles = NULL;
936 #endif
937
938 int MAIN(int argc, char *argv[])
939         {
940         X509_VERIFY_PARAM *vpm = NULL;
941         int badarg = 0;
942         short port=PORT;
943         char *CApath=NULL,*CAfile=NULL;
944         unsigned char *context = NULL;
945         char *dhfile = NULL;
946 #ifndef OPENSSL_NO_ECDH
947         char *named_curve = NULL;
948 #endif
949         int badop=0,bugs=0;
950         int ret=1;
951         int off=0;
952         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
953         int state=0;
954         const SSL_METHOD *meth=NULL;
955         int socket_type=SOCK_STREAM;
956         ENGINE *e=NULL;
957         char *inrand=NULL;
958         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
959         char *passarg = NULL, *pass = NULL;
960         char *dpassarg = NULL, *dpass = NULL;
961         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
962         X509 *s_cert = NULL, *s_dcert = NULL;
963         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
964         int no_cache = 0;
965 #ifndef OPENSSL_NO_TLSEXT
966         EVP_PKEY *s_key2 = NULL;
967         X509 *s_cert2 = NULL;
968         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
969 # ifndef OPENSSL_NO_NEXTPROTONEG
970         const char *next_proto_neg_in = NULL;
971         tlsextnextprotoctx next_proto;
972 # endif
973 #endif
974 #ifndef OPENSSL_NO_PSK
975         /* by default do not send a PSK identity hint */
976         static char *psk_identity_hint=NULL;
977 #endif
978 #ifndef OPENSSL_NO_SRP
979         char *srpuserseed = NULL;
980         char *srp_verifier_file = NULL;
981 #endif
982         meth=SSLv23_server_method();
983
984         local_argc=argc;
985         local_argv=argv;
986
987         apps_startup();
988 #ifdef MONOLITH
989         s_server_init();
990 #endif
991
992         if (bio_err == NULL)
993                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
994
995         if (!load_config(bio_err, NULL))
996                 goto end;
997
998         verify_depth=0;
999 #ifdef FIONBIO
1000         s_nbio=0;
1001 #endif
1002         s_nbio_test=0;
1003
1004         argc--;
1005         argv++;
1006
1007         while (argc >= 1)
1008                 {
1009                 if      ((strcmp(*argv,"-port") == 0) ||
1010                          (strcmp(*argv,"-accept") == 0))
1011                         {
1012                         if (--argc < 1) goto bad;
1013                         if (!extract_port(*(++argv),&port))
1014                                 goto bad;
1015                         }
1016                 else if (strcmp(*argv,"-verify") == 0)
1017                         {
1018                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1019                         if (--argc < 1) goto bad;
1020                         verify_depth=atoi(*(++argv));
1021                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1022                         }
1023                 else if (strcmp(*argv,"-Verify") == 0)
1024                         {
1025                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1026                                 SSL_VERIFY_CLIENT_ONCE;
1027                         if (--argc < 1) goto bad;
1028                         verify_depth=atoi(*(++argv));
1029                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1030                         }
1031                 else if (strcmp(*argv,"-context") == 0)
1032                         {
1033                         if (--argc < 1) goto bad;
1034                         context= (unsigned char *)*(++argv);
1035                         }
1036                 else if (strcmp(*argv,"-cert") == 0)
1037                         {
1038                         if (--argc < 1) goto bad;
1039                         s_cert_file= *(++argv);
1040                         }
1041                 else if (strcmp(*argv,"-certform") == 0)
1042                         {
1043                         if (--argc < 1) goto bad;
1044                         s_cert_format = str2fmt(*(++argv));
1045                         }
1046                 else if (strcmp(*argv,"-key") == 0)
1047                         {
1048                         if (--argc < 1) goto bad;
1049                         s_key_file= *(++argv);
1050                         }
1051                 else if (strcmp(*argv,"-keyform") == 0)
1052                         {
1053                         if (--argc < 1) goto bad;
1054                         s_key_format = str2fmt(*(++argv));
1055                         }
1056                 else if (strcmp(*argv,"-pass") == 0)
1057                         {
1058                         if (--argc < 1) goto bad;
1059                         passarg = *(++argv);
1060                         }
1061                 else if (strcmp(*argv,"-dhparam") == 0)
1062                         {
1063                         if (--argc < 1) goto bad;
1064                         dhfile = *(++argv);
1065                         }
1066 #ifndef OPENSSL_NO_ECDH         
1067                 else if (strcmp(*argv,"-named_curve") == 0)
1068                         {
1069                         if (--argc < 1) goto bad;
1070                         named_curve = *(++argv);
1071                         }
1072 #endif
1073                 else if (strcmp(*argv,"-dcertform") == 0)
1074                         {
1075                         if (--argc < 1) goto bad;
1076                         s_dcert_format = str2fmt(*(++argv));
1077                         }
1078                 else if (strcmp(*argv,"-dcert") == 0)
1079                         {
1080                         if (--argc < 1) goto bad;
1081                         s_dcert_file= *(++argv);
1082                         }
1083                 else if (strcmp(*argv,"-dkeyform") == 0)
1084                         {
1085                         if (--argc < 1) goto bad;
1086                         s_dkey_format = str2fmt(*(++argv));
1087                         }
1088                 else if (strcmp(*argv,"-dpass") == 0)
1089                         {
1090                         if (--argc < 1) goto bad;
1091                         dpassarg = *(++argv);
1092                         }
1093                 else if (strcmp(*argv,"-dkey") == 0)
1094                         {
1095                         if (--argc < 1) goto bad;
1096                         s_dkey_file= *(++argv);
1097                         }
1098                 else if (strcmp(*argv,"-nocert") == 0)
1099                         {
1100                         nocert=1;
1101                         }
1102                 else if (strcmp(*argv,"-CApath") == 0)
1103                         {
1104                         if (--argc < 1) goto bad;
1105                         CApath= *(++argv);
1106                         }
1107                 else if (strcmp(*argv,"-no_cache") == 0)
1108                         no_cache = 1;
1109                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1110                         {
1111                         if (badarg)
1112                                 goto bad;
1113                         continue;
1114                         }
1115                 else if (strcmp(*argv,"-verify_return_error") == 0)
1116                         verify_return_error = 1;
1117                 else if (strcmp(*argv,"-serverpref") == 0)
1118                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
1119                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
1120                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
1121                 else if (strcmp(*argv,"-cipher") == 0)
1122                         {
1123                         if (--argc < 1) goto bad;
1124                         cipher= *(++argv);
1125                         }
1126                 else if (strcmp(*argv,"-CAfile") == 0)
1127                         {
1128                         if (--argc < 1) goto bad;
1129                         CAfile= *(++argv);
1130                         }
1131 #ifdef FIONBIO  
1132                 else if (strcmp(*argv,"-nbio") == 0)
1133                         { s_nbio=1; }
1134 #endif
1135                 else if (strcmp(*argv,"-nbio_test") == 0)
1136                         {
1137 #ifdef FIONBIO  
1138                         s_nbio=1;
1139 #endif
1140                         s_nbio_test=1;
1141                         }
1142                 else if (strcmp(*argv,"-debug") == 0)
1143                         { s_debug=1; }
1144 #ifndef OPENSSL_NO_TLSEXT
1145                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1146                         s_tlsextdebug=1;
1147                 else if (strcmp(*argv,"-status") == 0)
1148                         s_tlsextstatus=1;
1149                 else if (strcmp(*argv,"-status_verbose") == 0)
1150                         {
1151                         s_tlsextstatus=1;
1152                         tlscstatp.verbose = 1;
1153                         }
1154                 else if (!strcmp(*argv, "-status_timeout"))
1155                         {
1156                         s_tlsextstatus=1;
1157                         if (--argc < 1) goto bad;
1158                         tlscstatp.timeout = atoi(*(++argv));
1159                         }
1160                 else if (!strcmp(*argv, "-status_url"))
1161                         {
1162                         s_tlsextstatus=1;
1163                         if (--argc < 1) goto bad;
1164                         if (!OCSP_parse_url(*(++argv),
1165                                         &tlscstatp.host,
1166                                         &tlscstatp.port,
1167                                         &tlscstatp.path,
1168                                         &tlscstatp.use_ssl))
1169                                 {
1170                                 BIO_printf(bio_err, "Error parsing URL\n");
1171                                 goto bad;
1172                                 }
1173                         }
1174 #endif
1175                 else if (strcmp(*argv,"-msg") == 0)
1176                         { s_msg=1; }
1177                 else if (strcmp(*argv,"-hack") == 0)
1178                         { hack=1; }
1179                 else if (strcmp(*argv,"-state") == 0)
1180                         { state=1; }
1181                 else if (strcmp(*argv,"-crlf") == 0)
1182                         { s_crlf=1; }
1183                 else if (strcmp(*argv,"-quiet") == 0)
1184                         { s_quiet=1; }
1185                 else if (strcmp(*argv,"-bugs") == 0)
1186                         { bugs=1; }
1187                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1188                         { no_tmp_rsa=1; }
1189                 else if (strcmp(*argv,"-no_dhe") == 0)
1190                         { no_dhe=1; }
1191                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1192                         { no_ecdhe=1; }
1193 #ifndef OPENSSL_NO_PSK
1194                 else if (strcmp(*argv,"-psk_hint") == 0)
1195                         {
1196                         if (--argc < 1) goto bad;
1197                         psk_identity_hint= *(++argv);
1198                         }
1199                 else if (strcmp(*argv,"-psk") == 0)
1200                         {
1201                         size_t i;
1202
1203                         if (--argc < 1) goto bad;
1204                         psk_key=*(++argv);
1205                         for (i=0; i<strlen(psk_key); i++)
1206                                 {
1207                                 if (isxdigit((unsigned char)psk_key[i]))
1208                                         continue;
1209                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1210                                 goto bad;
1211                                 }
1212                         }
1213 #endif
1214 #ifndef OPENSSL_NO_SRP
1215                 else if (strcmp(*argv, "-srpvfile") == 0)
1216                         {
1217                         if (--argc < 1) goto bad;
1218                         srp_verifier_file = *(++argv);
1219                         meth = TLSv1_server_method();
1220                         }
1221                 else if (strcmp(*argv, "-srpuserseed") == 0)
1222                         {
1223                         if (--argc < 1) goto bad;
1224                         srpuserseed = *(++argv);
1225                         meth = TLSv1_server_method();
1226                         }
1227 #endif
1228                 else if (strcmp(*argv,"-www") == 0)
1229                         { www=1; }
1230                 else if (strcmp(*argv,"-WWW") == 0)
1231                         { www=2; }
1232                 else if (strcmp(*argv,"-HTTP") == 0)
1233                         { www=3; }
1234                 else if (strcmp(*argv,"-no_ssl2") == 0)
1235                         { off|=SSL_OP_NO_SSLv2; }
1236                 else if (strcmp(*argv,"-no_ssl3") == 0)
1237                         { off|=SSL_OP_NO_SSLv3; }
1238                 else if (strcmp(*argv,"-no_tls1") == 0)
1239                         { off|=SSL_OP_NO_TLSv1; }
1240                 else if (strcmp(*argv,"-no_tls1_1") == 0)
1241                         { off|=SSL_OP_NO_TLSv1_1; }
1242                 else if (strcmp(*argv,"-no_tls1_2") == 0)
1243                         { off|=SSL_OP_NO_TLSv1_2; }
1244                 else if (strcmp(*argv,"-no_comp") == 0)
1245                         { off|=SSL_OP_NO_COMPRESSION; }
1246 #ifndef OPENSSL_NO_TLSEXT
1247                 else if (strcmp(*argv,"-no_ticket") == 0)
1248                         { off|=SSL_OP_NO_TICKET; }
1249 #endif
1250 #ifndef OPENSSL_NO_SSL2
1251                 else if (strcmp(*argv,"-ssl2") == 0)
1252                         { meth=SSLv2_server_method(); }
1253 #endif
1254 #ifndef OPENSSL_NO_SSL3
1255                 else if (strcmp(*argv,"-ssl3") == 0)
1256                         { meth=SSLv3_server_method(); }
1257 #endif
1258 #ifndef OPENSSL_NO_TLS1
1259                 else if (strcmp(*argv,"-tls1") == 0)
1260                         { meth=TLSv1_server_method(); }
1261                 else if (strcmp(*argv,"-tls1_1") == 0)
1262                         { meth=TLSv1_1_server_method(); }
1263                 else if (strcmp(*argv,"-tls1_2") == 0)
1264                         { meth=TLSv1_2_server_method(); }
1265 #endif
1266 #ifndef OPENSSL_NO_DTLS1
1267                 else if (strcmp(*argv,"-dtls1") == 0)
1268                         { 
1269                         meth=DTLSv1_server_method();
1270                         socket_type = SOCK_DGRAM;
1271                         }
1272                 else if (strcmp(*argv,"-timeout") == 0)
1273                         enable_timeouts = 1;
1274                 else if (strcmp(*argv,"-mtu") == 0)
1275                         {
1276                         if (--argc < 1) goto bad;
1277                         socket_mtu = atol(*(++argv));
1278                         }
1279                 else if (strcmp(*argv, "-chain") == 0)
1280                         cert_chain = 1;
1281 #endif
1282                 else if (strcmp(*argv, "-id_prefix") == 0)
1283                         {
1284                         if (--argc < 1) goto bad;
1285                         session_id_prefix = *(++argv);
1286                         }
1287 #ifndef OPENSSL_NO_ENGINE
1288                 else if (strcmp(*argv,"-engine") == 0)
1289                         {
1290                         if (--argc < 1) goto bad;
1291                         engine_id= *(++argv);
1292                         }
1293 #endif
1294                 else if (strcmp(*argv,"-rand") == 0)
1295                         {
1296                         if (--argc < 1) goto bad;
1297                         inrand= *(++argv);
1298                         }
1299 #ifndef OPENSSL_NO_TLSEXT
1300                 else if (strcmp(*argv,"-servername") == 0)
1301                         {
1302                         if (--argc < 1) goto bad;
1303                         tlsextcbp.servername= *(++argv);
1304                         }
1305                 else if (strcmp(*argv,"-servername_fatal") == 0)
1306                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1307                 else if (strcmp(*argv,"-cert2") == 0)
1308                         {
1309                         if (--argc < 1) goto bad;
1310                         s_cert_file2= *(++argv);
1311                         }
1312                 else if (strcmp(*argv,"-key2") == 0)
1313                         {
1314                         if (--argc < 1) goto bad;
1315                         s_key_file2= *(++argv);
1316                         }
1317 # ifndef OPENSSL_NO_NEXTPROTONEG
1318                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1319                         {
1320                         if (--argc < 1) goto bad;
1321                         next_proto_neg_in = *(++argv);
1322                         }
1323 # endif
1324 #endif
1325 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1326                 else if (strcmp(*argv,"-jpake") == 0)
1327                         {
1328                         if (--argc < 1) goto bad;
1329                         jpake_secret = *(++argv);
1330                         }
1331 #endif
1332 #ifndef OPENSSL_NO_SRTP
1333                 else if (strcmp(*argv,"-use_srtp") == 0)
1334                         {
1335                         if (--argc < 1) goto bad;
1336                         srtp_profiles = *(++argv);
1337                         }
1338 #endif
1339                 else if (strcmp(*argv,"-keymatexport") == 0)
1340                         {
1341                         if (--argc < 1) goto bad;
1342                         keymatexportlabel= *(++argv);
1343                         }
1344                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1345                         {
1346                         if (--argc < 1) goto bad;
1347                         keymatexportlen=atoi(*(++argv));
1348                         if (keymatexportlen == 0) goto bad;
1349                         }
1350                 else
1351                         {
1352                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1353                         badop=1;
1354                         break;
1355                         }
1356                 argc--;
1357                 argv++;
1358                 }
1359         if (badop)
1360                 {
1361 bad:
1362                 sv_usage();
1363                 goto end;
1364                 }
1365 #ifndef OPENSSL_NO_DTLS1
1366         if (www && socket_type == SOCK_DGRAM)
1367                 {
1368                 BIO_printf(bio_err,
1369                                 "Can't use -HTTP, -www or -WWW with DTLS\n");
1370                 goto end;
1371                 }
1372 #endif
1373
1374 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1375         if (jpake_secret)
1376                 {
1377                 if (psk_key)
1378                         {
1379                         BIO_printf(bio_err,
1380                                    "Can't use JPAKE and PSK together\n");
1381                         goto end;
1382                         }
1383                 psk_identity = "JPAKE";
1384                 if (cipher)
1385                         {
1386                         BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1387                         goto end;
1388                         }
1389                 cipher = "PSK";
1390                 }
1391
1392 #endif
1393
1394         SSL_load_error_strings();
1395         OpenSSL_add_ssl_algorithms();
1396
1397 #ifndef OPENSSL_NO_ENGINE
1398         e = setup_engine(bio_err, engine_id, 1);
1399 #endif
1400
1401         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1402                 {
1403                 BIO_printf(bio_err, "Error getting password\n");
1404                 goto end;
1405                 }
1406
1407
1408         if (s_key_file == NULL)
1409                 s_key_file = s_cert_file;
1410 #ifndef OPENSSL_NO_TLSEXT
1411         if (s_key_file2 == NULL)
1412                 s_key_file2 = s_cert_file2;
1413 #endif
1414
1415         if (nocert == 0)
1416                 {
1417                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1418                        "server certificate private key file");
1419                 if (!s_key)
1420                         {
1421                         ERR_print_errors(bio_err);
1422                         goto end;
1423                         }
1424
1425                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1426                         NULL, e, "server certificate file");
1427
1428                 if (!s_cert)
1429                         {
1430                         ERR_print_errors(bio_err);
1431                         goto end;
1432                         }
1433
1434 #ifndef OPENSSL_NO_TLSEXT
1435                 if (tlsextcbp.servername) 
1436                         {
1437                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1438                                 "second server certificate private key file");
1439                         if (!s_key2)
1440                                 {
1441                                 ERR_print_errors(bio_err);
1442                                 goto end;
1443                                 }
1444                         
1445                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1446                                 NULL, e, "second server certificate file");
1447                         
1448                         if (!s_cert2)
1449                                 {
1450                                 ERR_print_errors(bio_err);
1451                                 goto end;
1452                                 }
1453                         }
1454 #endif
1455                 }
1456
1457 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 
1458         if (next_proto_neg_in)
1459                 {
1460                 unsigned short len;
1461                 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1462                 if (next_proto.data == NULL)
1463                         goto end;
1464                 next_proto.len = len;
1465                 }
1466         else
1467                 {
1468                 next_proto.data = NULL;
1469                 }
1470 #endif
1471
1472
1473         if (s_dcert_file)
1474                 {
1475
1476                 if (s_dkey_file == NULL)
1477                         s_dkey_file = s_dcert_file;
1478
1479                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1480                                 0, dpass, e,
1481                                "second certificate private key file");
1482                 if (!s_dkey)
1483                         {
1484                         ERR_print_errors(bio_err);
1485                         goto end;
1486                         }
1487
1488                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1489                                 NULL, e, "second server certificate file");
1490
1491                 if (!s_dcert)
1492                         {
1493                         ERR_print_errors(bio_err);
1494                         goto end;
1495                         }
1496
1497                 }
1498
1499         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1500                 && !RAND_status())
1501                 {
1502                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1503                 }
1504         if (inrand != NULL)
1505                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1506                         app_RAND_load_files(inrand));
1507
1508         if (bio_s_out == NULL)
1509                 {
1510                 if (s_quiet && !s_debug && !s_msg)
1511                         {
1512                         bio_s_out=BIO_new(BIO_s_null());
1513                         }
1514                 else
1515                         {
1516                         if (bio_s_out == NULL)
1517                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1518                         }
1519                 }
1520
1521 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1522         if (nocert)
1523 #endif
1524                 {
1525                 s_cert_file=NULL;
1526                 s_key_file=NULL;
1527                 s_dcert_file=NULL;
1528                 s_dkey_file=NULL;
1529 #ifndef OPENSSL_NO_TLSEXT
1530                 s_cert_file2=NULL;
1531                 s_key_file2=NULL;
1532 #endif
1533                 }
1534
1535         ctx=SSL_CTX_new(meth);
1536         if (ctx == NULL)
1537                 {
1538                 ERR_print_errors(bio_err);
1539                 goto end;
1540                 }
1541         if (session_id_prefix)
1542                 {
1543                 if(strlen(session_id_prefix) >= 32)
1544                         BIO_printf(bio_err,
1545 "warning: id_prefix is too long, only one new session will be possible\n");
1546                 else if(strlen(session_id_prefix) >= 16)
1547                         BIO_printf(bio_err,
1548 "warning: id_prefix is too long if you use SSLv2\n");
1549                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1550                         {
1551                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1552                         ERR_print_errors(bio_err);
1553                         goto end;
1554                         }
1555                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1556                 }
1557         SSL_CTX_set_quiet_shutdown(ctx,1);
1558         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1559         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1560         SSL_CTX_set_options(ctx,off);
1561         /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1562          * Setting read ahead solves this problem.
1563          */
1564         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1565
1566         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1567         if (no_cache)
1568                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1569         else
1570                 SSL_CTX_sess_set_cache_size(ctx,128);
1571
1572 #ifndef OPENSSL_NO_SRTP
1573         if (srtp_profiles != NULL)
1574                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1575 #endif
1576
1577 #if 0
1578         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1579 #endif
1580
1581 #if 0
1582         if (s_cert_file == NULL)
1583                 {
1584                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1585                 goto end;
1586                 }
1587 #endif
1588
1589         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1590                 (!SSL_CTX_set_default_verify_paths(ctx)))
1591                 {
1592                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1593                 ERR_print_errors(bio_err);
1594                 /* goto end; */
1595                 }
1596         if (vpm)
1597                 SSL_CTX_set1_param(ctx, vpm);
1598
1599 #ifndef OPENSSL_NO_TLSEXT
1600         if (s_cert2)
1601                 {
1602                 ctx2=SSL_CTX_new(meth);
1603                 if (ctx2 == NULL)
1604                         {
1605                         ERR_print_errors(bio_err);
1606                         goto end;
1607                         }
1608                 }
1609         
1610         if (ctx2)
1611                 {
1612                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1613
1614                 if (session_id_prefix)
1615                         {
1616                         if(strlen(session_id_prefix) >= 32)
1617                                 BIO_printf(bio_err,
1618                                         "warning: id_prefix is too long, only one new session will be possible\n");
1619                         else if(strlen(session_id_prefix) >= 16)
1620                                 BIO_printf(bio_err,
1621                                         "warning: id_prefix is too long if you use SSLv2\n");
1622                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1623                                 {
1624                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1625                                 ERR_print_errors(bio_err);
1626                                 goto end;
1627                                 }
1628                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1629                         }
1630                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1631                 if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1632                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1633                 SSL_CTX_set_options(ctx2,off);
1634                 /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1635                  * Setting read ahead solves this problem.
1636                  */
1637                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1638
1639                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1640
1641                 if (no_cache)
1642                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1643                 else
1644                         SSL_CTX_sess_set_cache_size(ctx2,128);
1645
1646                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1647                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1648                         {
1649                         ERR_print_errors(bio_err);
1650                         }
1651                 if (vpm)
1652                         SSL_CTX_set1_param(ctx2, vpm);
1653                 }
1654
1655 # ifndef OPENSSL_NO_NEXTPROTONEG
1656         if (next_proto.data)
1657                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1658 # endif
1659 #endif 
1660
1661 #ifndef OPENSSL_NO_DH
1662         if (!no_dhe)
1663                 {
1664                 DH *dh=NULL;
1665
1666                 if (dhfile)
1667                         dh = load_dh_param(dhfile);
1668                 else if (s_cert_file)
1669                         dh = load_dh_param(s_cert_file);
1670
1671                 if (dh != NULL)
1672                         {
1673                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1674                         }
1675                 else
1676                         {
1677                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1678                         dh=get_dh512();
1679                         }
1680                 (void)BIO_flush(bio_s_out);
1681
1682                 SSL_CTX_set_tmp_dh(ctx,dh);
1683 #ifndef OPENSSL_NO_TLSEXT
1684                 if (ctx2)
1685                         {
1686                         if (!dhfile)
1687                                 { 
1688                                 DH *dh2=load_dh_param(s_cert_file2);
1689                                 if (dh2 != NULL)
1690                                         {
1691                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1692                                         (void)BIO_flush(bio_s_out);
1693
1694                                         DH_free(dh);
1695                                         dh = dh2;
1696                                         }
1697                                 }
1698                         SSL_CTX_set_tmp_dh(ctx2,dh);
1699                         }
1700 #endif
1701                 DH_free(dh);
1702                 }
1703 #endif
1704
1705 #ifndef OPENSSL_NO_ECDH
1706         if (!no_ecdhe)
1707                 {
1708                 EC_KEY *ecdh=NULL;
1709
1710                 if (named_curve)
1711                         {
1712                         int nid = OBJ_sn2nid(named_curve);
1713
1714                         if (nid == 0)
1715                                 {
1716                                 BIO_printf(bio_err, "unknown curve name (%s)\n", 
1717                                         named_curve);
1718                                 goto end;
1719                                 }
1720                         ecdh = EC_KEY_new_by_curve_name(nid);
1721                         if (ecdh == NULL)
1722                                 {
1723                                 BIO_printf(bio_err, "unable to create curve (%s)\n", 
1724                                         named_curve);
1725                                 goto end;
1726                                 }
1727                         }
1728
1729                 if (ecdh != NULL)
1730                         {
1731                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1732                         }
1733                 else
1734                         {
1735                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1736                         ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
1737                         if (ecdh == NULL) 
1738                                 {
1739                                 BIO_printf(bio_err, "unable to create curve (nistp256)\n");
1740                                 goto end;
1741                                 }
1742                         }
1743                 (void)BIO_flush(bio_s_out);
1744
1745                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1746 #ifndef OPENSSL_NO_TLSEXT
1747                 if (ctx2) 
1748                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1749 #endif
1750                 EC_KEY_free(ecdh);
1751                 }
1752 #endif
1753         
1754         if (!set_cert_key_stuff(ctx, s_cert, s_key))
1755                 goto end;
1756 #ifndef OPENSSL_NO_TLSEXT
1757         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1758                 goto end; 
1759 #endif
1760         if (s_dcert != NULL)
1761                 {
1762                 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey))
1763                         goto end;
1764                 }
1765
1766 #ifndef OPENSSL_NO_RSA
1767 #if 1
1768         if (!no_tmp_rsa)
1769                 {
1770                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1771 #ifndef OPENSSL_NO_TLSEXT
1772                 if (ctx2) 
1773                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1774 #endif          
1775                 }
1776 #else
1777         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1778                 {
1779                 RSA *rsa;
1780
1781                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1782                 BIO_flush(bio_s_out);
1783
1784                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1785
1786                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1787                         {
1788                         ERR_print_errors(bio_err);
1789                         goto end;
1790                         }
1791 #ifndef OPENSSL_NO_TLSEXT
1792                         if (ctx2)
1793                                 {
1794                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1795                                         {
1796                                         ERR_print_errors(bio_err);
1797                                         goto end;
1798                                         }
1799                                 }
1800 #endif
1801                 RSA_free(rsa);
1802                 BIO_printf(bio_s_out,"\n");
1803                 }
1804 #endif
1805 #endif
1806
1807 #ifndef OPENSSL_NO_PSK
1808 #ifdef OPENSSL_NO_JPAKE
1809         if (psk_key != NULL)
1810 #else
1811         if (psk_key != NULL || jpake_secret)
1812 #endif
1813                 {
1814                 if (s_debug)
1815                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
1816                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1817                 }
1818
1819         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1820                 {
1821                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1822                 ERR_print_errors(bio_err);
1823                 goto end;
1824                 }
1825 #endif
1826
1827         if (cipher != NULL)
1828                 {
1829                 if(!SSL_CTX_set_cipher_list(ctx,cipher))
1830                         {
1831                         BIO_printf(bio_err,"error setting cipher list\n");
1832                         ERR_print_errors(bio_err);
1833                         goto end;
1834                         }
1835 #ifndef OPENSSL_NO_TLSEXT
1836                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1837                         {
1838                         BIO_printf(bio_err,"error setting cipher list\n");
1839                         ERR_print_errors(bio_err);
1840                         goto end;
1841                         }
1842 #endif
1843                 }
1844         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1845         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1846                 sizeof s_server_session_id_context);
1847
1848         /* Set DTLS cookie generation and verification callbacks */
1849         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1850         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1851
1852 #ifndef OPENSSL_NO_TLSEXT
1853         if (ctx2)
1854                 {
1855                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1856                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1857                         sizeof s_server_session_id_context);
1858
1859                 tlsextcbp.biodebug = bio_s_out;
1860                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1861                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1862                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1863                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1864                 }
1865 #endif
1866
1867 #ifndef OPENSSL_NO_SRP
1868         if (srp_verifier_file != NULL)
1869                 {
1870                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
1871                 srp_callback_parm.user = NULL;
1872                 srp_callback_parm.login = NULL;
1873                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
1874                         {
1875                         BIO_printf(bio_err,
1876                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1877                                    srp_verifier_file, ret);
1878                                 goto end;
1879                         }
1880                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
1881                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);                        
1882                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1883                 }
1884         else
1885 #endif
1886         if (CAfile != NULL)
1887                 {
1888                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1889 #ifndef OPENSSL_NO_TLSEXT
1890                 if (ctx2) 
1891                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1892 #endif
1893                 }
1894
1895         BIO_printf(bio_s_out,"ACCEPT\n");
1896         (void)BIO_flush(bio_s_out);
1897         if (www)
1898                 do_server(port,socket_type,&accept_socket,www_body, context);
1899         else
1900                 do_server(port,socket_type,&accept_socket,sv_body, context);
1901         print_stats(bio_s_out,ctx);
1902         ret=0;
1903 end:
1904         if (ctx != NULL) SSL_CTX_free(ctx);
1905         if (s_cert)
1906                 X509_free(s_cert);
1907         if (s_dcert)
1908                 X509_free(s_dcert);
1909         if (s_key)
1910                 EVP_PKEY_free(s_key);
1911         if (s_dkey)
1912                 EVP_PKEY_free(s_dkey);
1913         if (pass)
1914                 OPENSSL_free(pass);
1915         if (dpass)
1916                 OPENSSL_free(dpass);
1917         if (vpm)
1918                 X509_VERIFY_PARAM_free(vpm);
1919 #ifndef OPENSSL_NO_TLSEXT
1920         if (tlscstatp.host)
1921                 OPENSSL_free(tlscstatp.host);
1922         if (tlscstatp.port)
1923                 OPENSSL_free(tlscstatp.port);
1924         if (tlscstatp.path)
1925                 OPENSSL_free(tlscstatp.path);
1926         if (ctx2 != NULL) SSL_CTX_free(ctx2);
1927         if (s_cert2)
1928                 X509_free(s_cert2);
1929         if (s_key2)
1930                 EVP_PKEY_free(s_key2);
1931 #endif
1932         if (bio_s_out != NULL)
1933                 {
1934         BIO_free(bio_s_out);
1935                 bio_s_out=NULL;
1936                 }
1937         apps_shutdown();
1938         OPENSSL_EXIT(ret);
1939         }
1940
1941 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1942         {
1943         BIO_printf(bio,"%4ld items in the session cache\n",
1944                 SSL_CTX_sess_number(ssl_ctx));
1945         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1946                 SSL_CTX_sess_connect(ssl_ctx));
1947         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1948                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1949         BIO_printf(bio,"%4ld client connects that finished\n",
1950                 SSL_CTX_sess_connect_good(ssl_ctx));
1951         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1952                 SSL_CTX_sess_accept(ssl_ctx));
1953         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1954                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1955         BIO_printf(bio,"%4ld server accepts that finished\n",
1956                 SSL_CTX_sess_accept_good(ssl_ctx));
1957         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1958         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1959         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1960         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1961         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1962                 SSL_CTX_sess_cache_full(ssl_ctx),
1963                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1964         }
1965
1966 static int sv_body(char *hostname, int s, unsigned char *context)
1967         {
1968         char *buf=NULL;
1969         fd_set readfds;
1970         int ret=1,width;
1971         int k,i;
1972         unsigned long l;
1973         SSL *con=NULL;
1974         BIO *sbio;
1975 #ifndef OPENSSL_NO_KRB5
1976         KSSL_CTX *kctx;
1977 #endif
1978         struct timeval timeout;
1979 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1980         struct timeval tv;
1981 #else
1982         struct timeval *timeoutp;
1983 #endif
1984
1985         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1986                 {
1987                 BIO_printf(bio_err,"out of memory\n");
1988                 goto err;
1989                 }
1990 #ifdef FIONBIO  
1991         if (s_nbio)
1992                 {
1993                 unsigned long sl=1;
1994
1995                 if (!s_quiet)
1996                         BIO_printf(bio_err,"turning on non blocking io\n");
1997                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1998                         ERR_print_errors(bio_err);
1999                 }
2000 #endif
2001
2002         if (con == NULL) {
2003                 con=SSL_new(ctx);
2004 #ifndef OPENSSL_NO_TLSEXT
2005         if (s_tlsextdebug)
2006                 {
2007                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2008                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2009                 }
2010         if (s_tlsextstatus)
2011                 {
2012                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2013                 tlscstatp.err = bio_err;
2014                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2015                 }
2016 #endif
2017 #ifndef OPENSSL_NO_KRB5
2018                 if ((kctx = kssl_ctx_new()) != NULL)
2019                         {
2020                         SSL_set0_kssl_ctx(con, kctx);
2021                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2022                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2023                         }
2024 #endif  /* OPENSSL_NO_KRB5 */
2025                 if(context)
2026                       SSL_set_session_id_context(con, context,
2027                                                  strlen((char *)context));
2028         }
2029         SSL_clear(con);
2030 #if 0
2031 #ifdef TLSEXT_TYPE_opaque_prf_input
2032         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2033 #endif
2034 #endif
2035
2036         if (SSL_version(con) == DTLS1_VERSION)
2037                 {
2038
2039                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2040
2041                 if (enable_timeouts)
2042                         {
2043                         timeout.tv_sec = 0;
2044                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2045                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2046                         
2047                         timeout.tv_sec = 0;
2048                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2049                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2050                         }
2051
2052                 if (socket_mtu > 28)
2053                         {
2054                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2055                         SSL_set_mtu(con, socket_mtu - 28);
2056                         }
2057                 else
2058                         /* want to do MTU discovery */
2059                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2060
2061         /* turn on cookie exchange */
2062         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2063                 }
2064         else
2065                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2066
2067         if (s_nbio_test)
2068                 {
2069                 BIO *test;
2070
2071                 test=BIO_new(BIO_f_nbio_test());
2072                 sbio=BIO_push(test,sbio);
2073                 }
2074 #ifndef OPENSSL_NO_JPAKE
2075         if(jpake_secret)
2076                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2077 #endif
2078
2079         SSL_set_bio(con,sbio,sbio);
2080         SSL_set_accept_state(con);
2081         /* SSL_set_fd(con,s); */
2082
2083         if (s_debug)
2084                 {
2085                 SSL_set_debug(con, 1);
2086                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2087                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2088                 }
2089         if (s_msg)
2090                 {
2091                 SSL_set_msg_callback(con, msg_cb);
2092                 SSL_set_msg_callback_arg(con, bio_s_out);
2093                 }
2094 #ifndef OPENSSL_NO_TLSEXT
2095         if (s_tlsextdebug)
2096                 {
2097                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2098                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2099                 }
2100 #endif
2101
2102         width=s+1;
2103         for (;;)
2104                 {
2105                 int read_from_terminal;
2106                 int read_from_sslcon;
2107
2108                 read_from_terminal = 0;
2109                 read_from_sslcon = SSL_pending(con);
2110
2111                 if (!read_from_sslcon)
2112                         {
2113                         FD_ZERO(&readfds);
2114 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2115                         openssl_fdset(fileno(stdin),&readfds);
2116 #endif
2117                         openssl_fdset(s,&readfds);
2118                         /* Note: under VMS with SOCKETSHR the second parameter is
2119                          * currently of type (int *) whereas under other systems
2120                          * it is (void *) if you don't have a cast it will choke
2121                          * the compiler: if you do have a cast then you can either
2122                          * go for (int *) or (void *).
2123                          */
2124 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2125                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2126                          * on sockets. As a workaround we timeout the select every
2127                          * second and check for any keypress. In a proper Windows
2128                          * application we wouldn't do this because it is inefficient.
2129                          */
2130                         tv.tv_sec = 1;
2131                         tv.tv_usec = 0;
2132                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2133                         if((i < 0) || (!i && !_kbhit() ) )continue;
2134                         if(_kbhit())
2135                                 read_from_terminal = 1;
2136 #elif defined(OPENSSL_SYS_BEOS_R5)
2137                         /* Under BeOS-R5 the situation is similar to DOS */
2138                         tv.tv_sec = 1;
2139                         tv.tv_usec = 0;
2140                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2141                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2142                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2143                                 continue;
2144                         if (read(fileno(stdin), buf, 0) >= 0)
2145                                 read_from_terminal = 1;
2146                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2147 #else
2148                         if ((SSL_version(con) == DTLS1_VERSION) &&
2149                                 DTLSv1_get_timeout(con, &timeout))
2150                                 timeoutp = &timeout;
2151                         else
2152                                 timeoutp = NULL;
2153
2154                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2155
2156                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2157                                 {
2158                                 BIO_printf(bio_err,"TIMEOUT occured\n");
2159                                 }
2160
2161                         if (i <= 0) continue;
2162                         if (FD_ISSET(fileno(stdin),&readfds))
2163                                 read_from_terminal = 1;
2164 #endif
2165                         if (FD_ISSET(s,&readfds))
2166                                 read_from_sslcon = 1;
2167                         }
2168                 if (read_from_terminal)
2169                         {
2170                         if (s_crlf)
2171                                 {
2172                                 int j, lf_num;
2173
2174                                 i=raw_read_stdin(buf, bufsize/2);
2175                                 lf_num = 0;
2176                                 /* both loops are skipped when i <= 0 */
2177                                 for (j = 0; j < i; j++)
2178                                         if (buf[j] == '\n')
2179                                                 lf_num++;
2180                                 for (j = i-1; j >= 0; j--)
2181                                         {
2182                                         buf[j+lf_num] = buf[j];
2183                                         if (buf[j] == '\n')
2184                                                 {
2185                                                 lf_num--;
2186                                                 i++;
2187                                                 buf[j+lf_num] = '\r';
2188                                                 }
2189                                         }
2190                                 assert(lf_num == 0);
2191                                 }
2192                         else
2193                                 i=raw_read_stdin(buf,bufsize);
2194                         if (!s_quiet)
2195                                 {
2196                                 if ((i <= 0) || (buf[0] == 'Q'))
2197                                         {
2198                                         BIO_printf(bio_s_out,"DONE\n");
2199                                         SHUTDOWN(s);
2200                                         close_accept_socket();
2201                                         ret= -11;
2202                                         goto err;
2203                                         }
2204                                 if ((i <= 0) || (buf[0] == 'q'))
2205                                         {
2206                                         BIO_printf(bio_s_out,"DONE\n");
2207                                         if (SSL_version(con) != DTLS1_VERSION)
2208                         SHUTDOWN(s);
2209         /*                              close_accept_socket();
2210                                         ret= -11;*/
2211                                         goto err;
2212                                         }
2213
2214 #ifndef OPENSSL_NO_HEARTBEATS
2215                                 if ((buf[0] == 'B') &&
2216                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2217                                         {
2218                                         BIO_printf(bio_err,"HEARTBEATING\n");
2219                                         SSL_heartbeat(con);
2220                                         i=0;
2221                                         continue;
2222                                         }
2223 #endif
2224                                 if ((buf[0] == 'r') && 
2225                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2226                                         {
2227                                         SSL_renegotiate(con);
2228                                         i=SSL_do_handshake(con);
2229                                         printf("SSL_do_handshake -> %d\n",i);
2230                                         i=0; /*13; */
2231                                         continue;
2232                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2233                                         }
2234                                 if ((buf[0] == 'R') &&
2235                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2236                                         {
2237                                         SSL_set_verify(con,
2238                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2239                                         SSL_renegotiate(con);
2240                                         i=SSL_do_handshake(con);
2241                                         printf("SSL_do_handshake -> %d\n",i);
2242                                         i=0; /* 13; */
2243                                         continue;
2244                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2245                                         }
2246                                 if (buf[0] == 'P')
2247                                         {
2248                                         static const char *str="Lets print some clear text\n";
2249                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2250                                         }
2251                                 if (buf[0] == 'S')
2252                                         {
2253                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2254                                         }
2255                                 }
2256 #ifdef CHARSET_EBCDIC
2257                         ebcdic2ascii(buf,buf,i);
2258 #endif
2259                         l=k=0;
2260                         for (;;)
2261                                 {
2262                                 /* should do a select for the write */
2263 #ifdef RENEG
2264 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2265 #endif
2266                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2267 #ifndef OPENSSL_NO_SRP
2268                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2269                                         {
2270                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2271                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2272                                         if (srp_callback_parm.user) 
2273                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2274                                         else 
2275                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2276                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2277                                         }
2278 #endif
2279                                 switch (SSL_get_error(con,k))
2280                                         {
2281                                 case SSL_ERROR_NONE:
2282                                         break;
2283                                 case SSL_ERROR_WANT_WRITE:
2284                                 case SSL_ERROR_WANT_READ:
2285                                 case SSL_ERROR_WANT_X509_LOOKUP:
2286                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2287                                         break;
2288                                 case SSL_ERROR_SYSCALL:
2289                                 case SSL_ERROR_SSL:
2290                                         BIO_printf(bio_s_out,"ERROR\n");
2291                                         ERR_print_errors(bio_err);
2292                                         ret=1;
2293                                         goto err;
2294                                         /* break; */
2295                                 case SSL_ERROR_ZERO_RETURN:
2296                                         BIO_printf(bio_s_out,"DONE\n");
2297                                         ret=1;
2298                                         goto err;
2299                                         }
2300                                 l+=k;
2301                                 i-=k;
2302                                 if (i <= 0) break;
2303                                 }
2304                         }
2305                 if (read_from_sslcon)
2306                         {
2307                         if (!SSL_is_init_finished(con))
2308                                 {
2309                                 i=init_ssl_connection(con);
2310                                 
2311                                 if (i < 0)
2312                                         {
2313                                         ret=0;
2314                                         goto err;
2315                                         }
2316                                 else if (i == 0)
2317                                         {
2318                                         ret=1;
2319                                         goto err;
2320                                         }
2321                                 }
2322                         else
2323                                 {
2324 again:  
2325                                 i=SSL_read(con,(char *)buf,bufsize);
2326 #ifndef OPENSSL_NO_SRP
2327                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2328                                         {
2329                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2330                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2331                                         if (srp_callback_parm.user) 
2332                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2333                                         else 
2334                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2335                                         i=SSL_read(con,(char *)buf,bufsize);
2336                                         }
2337 #endif
2338                                 switch (SSL_get_error(con,i))
2339                                         {
2340                                 case SSL_ERROR_NONE:
2341 #ifdef CHARSET_EBCDIC
2342                                         ascii2ebcdic(buf,buf,i);
2343 #endif
2344                                         raw_write_stdout(buf,
2345                                                 (unsigned int)i);
2346                                         if (SSL_pending(con)) goto again;
2347                                         break;
2348                                 case SSL_ERROR_WANT_WRITE:
2349                                 case SSL_ERROR_WANT_READ:
2350                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2351                                         break;
2352                                 case SSL_ERROR_SYSCALL:
2353                                 case SSL_ERROR_SSL:
2354                                         BIO_printf(bio_s_out,"ERROR\n");
2355                                         ERR_print_errors(bio_err);
2356                                         ret=1;
2357                                         goto err;
2358                                 case SSL_ERROR_ZERO_RETURN:
2359                                         BIO_printf(bio_s_out,"DONE\n");
2360                                         ret=1;
2361                                         goto err;
2362                                         }
2363                                 }
2364                         }
2365                 }
2366 err:
2367         if (con != NULL)
2368                 {
2369                 BIO_printf(bio_s_out,"shutting down SSL\n");
2370 #if 1
2371                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2372 #else
2373                 SSL_shutdown(con);
2374 #endif
2375                 SSL_free(con);
2376                 }
2377         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2378         if (buf != NULL)
2379                 {
2380                 OPENSSL_cleanse(buf,bufsize);
2381                 OPENSSL_free(buf);
2382                 }
2383         if (ret >= 0)
2384                 BIO_printf(bio_s_out,"ACCEPT\n");
2385         return(ret);
2386         }
2387
2388 static void close_accept_socket(void)
2389         {
2390         BIO_printf(bio_err,"shutdown accept socket\n");
2391         if (accept_socket >= 0)
2392                 {
2393                 SHUTDOWN2(accept_socket);
2394                 }
2395         }
2396
2397 static int init_ssl_connection(SSL *con)
2398         {
2399         int i;
2400         const char *str;
2401         X509 *peer;
2402         long verify_error;
2403         MS_STATIC char buf[BUFSIZ];
2404 #ifndef OPENSSL_NO_KRB5
2405         char *client_princ;
2406 #endif
2407 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2408         const unsigned char *next_proto_neg;
2409         unsigned next_proto_neg_len;
2410 #endif
2411         unsigned char *exportedkeymat;
2412
2413
2414         i=SSL_accept(con);
2415 #ifndef OPENSSL_NO_SRP
2416         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2417                 {
2418                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2419                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2420                         if (srp_callback_parm.user) 
2421                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2422                         else 
2423                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2424                         i=SSL_accept(con);
2425                 }
2426 #endif
2427         if (i <= 0)
2428                 {
2429                 if (BIO_sock_should_retry(i))
2430                         {
2431                         BIO_printf(bio_s_out,"DELAY\n");
2432                         return(1);
2433                         }
2434
2435                 BIO_printf(bio_err,"ERROR\n");
2436                 verify_error=SSL_get_verify_result(con);
2437                 if (verify_error != X509_V_OK)
2438                         {
2439                         BIO_printf(bio_err,"verify error:%s\n",
2440                                 X509_verify_cert_error_string(verify_error));
2441                         }
2442                 else
2443                         ERR_print_errors(bio_err);
2444                 return(0);
2445                 }
2446
2447         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2448
2449         peer=SSL_get_peer_certificate(con);
2450         if (peer != NULL)
2451                 {
2452                 BIO_printf(bio_s_out,"Client certificate\n");
2453                 PEM_write_bio_X509(bio_s_out,peer);
2454                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2455                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2456                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2457                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2458                 X509_free(peer);
2459                 }
2460
2461         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2462                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2463         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2464         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2465
2466 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2467         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2468         if (next_proto_neg)
2469                 {
2470                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2471                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2472                 BIO_printf(bio_s_out, "\n");
2473                 }
2474 #endif
2475 #ifndef OPENSSL_NO_SRTP
2476         {
2477         SRTP_PROTECTION_PROFILE *srtp_profile
2478           = SSL_get_selected_srtp_profile(con);
2479
2480         if(srtp_profile)
2481                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2482                            srtp_profile->name);
2483         }
2484 #endif
2485         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2486         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2487                 TLS1_FLAGS_TLS_PADDING_BUG)
2488                 BIO_printf(bio_s_out,
2489                            "Peer has incorrect TLSv1 block padding\n");
2490 #ifndef OPENSSL_NO_KRB5
2491         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2492         if (client_princ != NULL)
2493                 {
2494                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2495                                                                 client_princ);
2496                 }
2497 #endif /* OPENSSL_NO_KRB5 */
2498         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2499                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2500         if (keymatexportlabel != NULL)
2501                 {
2502                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2503                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2504                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2505                            keymatexportlen);
2506                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2507                 if (exportedkeymat != NULL)
2508                         {
2509                         if (!SSL_export_keying_material(con, exportedkeymat,
2510                                                         keymatexportlen,
2511                                                         keymatexportlabel,
2512                                                         strlen(keymatexportlabel),
2513                                                         NULL, 0, 0))
2514                                 {
2515                                 BIO_printf(bio_s_out, "    Error\n");
2516                                 }
2517                         else
2518                                 {
2519                                 BIO_printf(bio_s_out, "    Keying material: ");
2520                                 for (i=0; i<keymatexportlen; i++)
2521                                         BIO_printf(bio_s_out, "%02X",
2522                                                    exportedkeymat[i]);
2523                                 BIO_printf(bio_s_out, "\n");
2524                                 }
2525                         OPENSSL_free(exportedkeymat);
2526                         }
2527                 }
2528
2529         return(1);
2530         }
2531
2532 #ifndef OPENSSL_NO_DH
2533 static DH *load_dh_param(const char *dhfile)
2534         {
2535         DH *ret=NULL;
2536         BIO *bio;
2537
2538         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2539                 goto err;
2540         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2541 err:
2542         if (bio != NULL) BIO_free(bio);
2543         return(ret);
2544         }
2545 #endif
2546 #ifndef OPENSSL_NO_KRB5
2547         char *client_princ;
2548 #endif
2549
2550 #if 0
2551 static int load_CA(SSL_CTX *ctx, char *file)
2552         {
2553         FILE *in;
2554         X509 *x=NULL;
2555
2556         if ((in=fopen(file,"r")) == NULL)
2557                 return(0);
2558
2559         for (;;)
2560                 {
2561                 if (PEM_read_X509(in,&x,NULL) == NULL)
2562                         break;
2563                 SSL_CTX_add_client_CA(ctx,x);
2564                 }
2565         if (x != NULL) X509_free(x);
2566         fclose(in);
2567         return(1);
2568         }
2569 #endif
2570
2571 static int www_body(char *hostname, int s, unsigned char *context)
2572         {
2573         char *buf=NULL;
2574         int ret=1;
2575         int i,j,k,dot;
2576         SSL *con;
2577         const SSL_CIPHER *c;
2578         BIO *io,*ssl_bio,*sbio;
2579 #ifndef OPENSSL_NO_KRB5
2580         KSSL_CTX *kctx;
2581 #endif
2582
2583         buf=OPENSSL_malloc(bufsize);
2584         if (buf == NULL) return(0);
2585         io=BIO_new(BIO_f_buffer());
2586         ssl_bio=BIO_new(BIO_f_ssl());
2587         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2588
2589 #ifdef FIONBIO  
2590         if (s_nbio)
2591                 {
2592                 unsigned long sl=1;
2593
2594                 if (!s_quiet)
2595                         BIO_printf(bio_err,"turning on non blocking io\n");
2596                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2597                         ERR_print_errors(bio_err);
2598                 }
2599 #endif
2600
2601         /* lets make the output buffer a reasonable size */
2602         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2603
2604         if ((con=SSL_new(ctx)) == NULL) goto err;
2605 #ifndef OPENSSL_NO_TLSEXT
2606                 if (s_tlsextdebug)
2607                         {
2608                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2609                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2610                         }
2611 #endif
2612 #ifndef OPENSSL_NO_KRB5
2613         if ((kctx = kssl_ctx_new()) != NULL)
2614                 {
2615                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2616                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2617                 }
2618 #endif  /* OPENSSL_NO_KRB5 */
2619         if(context) SSL_set_session_id_context(con, context,
2620                                                strlen((char *)context));
2621
2622         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2623         if (s_nbio_test)
2624                 {
2625                 BIO *test;
2626
2627                 test=BIO_new(BIO_f_nbio_test());
2628                 sbio=BIO_push(test,sbio);
2629                 }
2630         SSL_set_bio(con,sbio,sbio);
2631         SSL_set_accept_state(con);
2632
2633         /* SSL_set_fd(con,s); */
2634         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2635         BIO_push(io,ssl_bio);
2636 #ifdef CHARSET_EBCDIC
2637         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2638 #endif
2639
2640         if (s_debug)
2641                 {
2642                 SSL_set_debug(con, 1);
2643                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2644                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2645                 }
2646         if (s_msg)
2647                 {
2648                 SSL_set_msg_callback(con, msg_cb);
2649                 SSL_set_msg_callback_arg(con, bio_s_out);
2650                 }
2651
2652         for (;;)
2653                 {
2654                 if (hack)
2655                         {
2656                         i=SSL_accept(con);
2657 #ifndef OPENSSL_NO_SRP
2658                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2659                 {
2660                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2661                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2662                         if (srp_callback_parm.user) 
2663                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2664                         else 
2665                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2666                         i=SSL_accept(con);
2667                 }
2668 #endif
2669                         switch (SSL_get_error(con,i))
2670                                 {
2671                         case SSL_ERROR_NONE:
2672                                 break;
2673                         case SSL_ERROR_WANT_WRITE:
2674                         case SSL_ERROR_WANT_READ:
2675                         case SSL_ERROR_WANT_X509_LOOKUP:
2676                                 continue;
2677                         case SSL_ERROR_SYSCALL:
2678                         case SSL_ERROR_SSL:
2679                         case SSL_ERROR_ZERO_RETURN:
2680                                 ret=1;
2681                                 goto err;
2682                                 /* break; */
2683                                 }
2684
2685                         SSL_renegotiate(con);
2686                         SSL_write(con,NULL,0);
2687                         }
2688
2689                 i=BIO_gets(io,buf,bufsize-1);
2690                 if (i < 0) /* error */
2691                         {
2692                         if (!BIO_should_retry(io))
2693                                 {
2694                                 if (!s_quiet)
2695                                         ERR_print_errors(bio_err);
2696                                 goto err;
2697                                 }
2698                         else
2699                                 {
2700                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2701 #if defined(OPENSSL_SYS_NETWARE)
2702             delay(1000);
2703 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2704                                 sleep(1);
2705 #endif
2706                                 continue;
2707                                 }
2708                         }
2709                 else if (i == 0) /* end of input */
2710                         {
2711                         ret=1;
2712                         goto end;
2713                         }
2714
2715                 /* else we have data */
2716                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2717                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2718                         {
2719                         char *p;
2720                         X509 *peer;
2721                         STACK_OF(SSL_CIPHER) *sk;
2722                         static const char *space="                          ";
2723
2724                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2725                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2726                         BIO_puts(io,"<pre>\n");
2727 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2728                         BIO_puts(io,"\n");
2729                         for (i=0; i<local_argc; i++)
2730                                 {
2731                                 BIO_puts(io,local_argv[i]);
2732                                 BIO_write(io," ",1);
2733                                 }
2734                         BIO_puts(io,"\n");
2735
2736                         BIO_printf(io,
2737                                 "Secure Renegotiation IS%s supported\n",
2738                                 SSL_get_secure_renegotiation_support(con) ?
2739                                                         "" : " NOT");
2740
2741                         /* The following is evil and should not really
2742                          * be done */
2743                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2744                         sk=SSL_get_ciphers(con);
2745                         j=sk_SSL_CIPHER_num(sk);
2746                         for (i=0; i<j; i++)
2747                                 {
2748                                 c=sk_SSL_CIPHER_value(sk,i);
2749                                 BIO_printf(io,"%-11s:%-25s",
2750                                         SSL_CIPHER_get_version(c),
2751                                         SSL_CIPHER_get_name(c));
2752                                 if ((((i+1)%2) == 0) && (i+1 != j))
2753                                         BIO_puts(io,"\n");
2754                                 }
2755                         BIO_puts(io,"\n");
2756                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2757                         if (p != NULL)
2758                                 {
2759                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2760                                 j=i=0;
2761                                 while (*p)
2762                                         {
2763                                         if (*p == ':')
2764                                                 {
2765                                                 BIO_write(io,space,26-j);
2766                                                 i++;
2767                                                 j=0;
2768                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2769                                                 }
2770                                         else
2771                                                 {
2772                                                 BIO_write(io,p,1);
2773                                                 j++;
2774                                                 }
2775                                         p++;
2776                                         }
2777                                 BIO_puts(io,"\n");
2778                                 }
2779                         BIO_printf(io,(SSL_cache_hit(con)
2780                                 ?"---\nReused, "
2781                                 :"---\nNew, "));
2782                         c=SSL_get_current_cipher(con);
2783                         BIO_printf(io,"%s, Cipher is %s\n",
2784                                 SSL_CIPHER_get_version(c),
2785                                 SSL_CIPHER_get_name(c));
2786                         SSL_SESSION_print(io,SSL_get_session(con));
2787                         BIO_printf(io,"---\n");
2788                         print_stats(io,SSL_get_SSL_CTX(con));
2789                         BIO_printf(io,"---\n");
2790                         peer=SSL_get_peer_certificate(con);
2791                         if (peer != NULL)
2792                                 {
2793                                 BIO_printf(io,"Client certificate\n");
2794                                 X509_print(io,peer);
2795                                 PEM_write_bio_X509(io,peer);
2796                                 }
2797                         else
2798                                 BIO_puts(io,"no client certificate available\n");
2799                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2800                         break;
2801                         }
2802                 else if ((www == 2 || www == 3)
2803                          && (strncmp("GET /",buf,5) == 0))
2804                         {
2805                         BIO *file;
2806                         char *p,*e;
2807                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2808
2809                         /* skip the '/' */
2810                         p= &(buf[5]);
2811
2812                         dot = 1;
2813                         for (e=p; *e != '\0'; e++)
2814                                 {
2815                                 if (e[0] == ' ')
2816                                         break;
2817
2818                                 switch (dot)
2819                                         {
2820                                 case 1:
2821                                         dot = (e[0] == '.') ? 2 : 0;
2822                                         break;
2823                                 case 2:
2824                                         dot = (e[0] == '.') ? 3 : 0;
2825                                         break;
2826                                 case 3:
2827                                         dot = (e[0] == '/') ? -1 : 0;
2828                                         break;
2829                                         }
2830                                 if (dot == 0)
2831                                         dot = (e[0] == '/') ? 1 : 0;
2832                                 }
2833                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2834
2835                         if (*e == '\0')
2836                                 {
2837                                 BIO_puts(io,text);
2838                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2839                                 break;
2840                                 }
2841                         *e='\0';
2842
2843                         if (dot)
2844                                 {
2845                                 BIO_puts(io,text);
2846                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2847                                 break;
2848                                 }
2849
2850                         if (*p == '/')
2851                                 {
2852                                 BIO_puts(io,text);
2853                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2854                                 break;
2855                                 }
2856
2857 #if 0
2858                         /* append if a directory lookup */
2859                         if (e[-1] == '/')
2860                                 strcat(p,"index.html");
2861 #endif
2862
2863                         /* if a directory, do the index thang */
2864                         if (app_isdir(p)>0)
2865                                 {
2866 #if 0 /* must check buffer size */
2867                                 strcat(p,"/index.html");
2868 #else
2869                                 BIO_puts(io,text);
2870                                 BIO_printf(io,"'%s' is a directory\r\n",p);
2871                                 break;
2872 #endif
2873                                 }
2874
2875                         if ((file=BIO_new_file(p,"r")) == NULL)
2876                                 {
2877                                 BIO_puts(io,text);
2878                                 BIO_printf(io,"Error opening '%s'\r\n",p);
2879                                 ERR_print_errors(io);
2880                                 break;
2881                                 }
2882
2883                         if (!s_quiet)
2884                                 BIO_printf(bio_err,"FILE:%s\n",p);
2885
2886                         if (www == 2)
2887                                 {
2888                                 i=strlen(p);
2889                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2890                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2891                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2892                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2893                                 else
2894                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2895                                 }
2896                         /* send the file */
2897                         for (;;)
2898                                 {
2899                                 i=BIO_read(file,buf,bufsize);
2900                                 if (i <= 0) break;
2901
2902 #ifdef RENEG
2903                                 total_bytes+=i;
2904                                 fprintf(stderr,"%d\n",i);
2905                                 if (total_bytes > 3*1024)
2906                                         {
2907                                         total_bytes=0;
2908                                         fprintf(stderr,"RENEGOTIATE\n");
2909                                         SSL_renegotiate(con);
2910                                         }
2911 #endif
2912
2913                                 for (j=0; j<i; )
2914                                         {
2915 #ifdef RENEG
2916 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2917 #endif
2918                                         k=BIO_write(io,&(buf[j]),i-j);
2919                                         if (k <= 0)
2920                                                 {
2921                                                 if (!BIO_should_retry(io))
2922                                                         goto write_error;
2923                                                 else
2924                                                         {
2925                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2926                                                         }
2927                                                 }
2928                                         else
2929                                                 {
2930                                                 j+=k;
2931                                                 }
2932                                         }
2933                                 }
2934 write_error:
2935                         BIO_free(file);
2936                         break;
2937                         }
2938                 }
2939
2940         for (;;)
2941                 {
2942                 i=(int)BIO_flush(io);
2943                 if (i <= 0)
2944                         {
2945                         if (!BIO_should_retry(io))
2946                                 break;
2947                         }
2948                 else
2949                         break;
2950                 }
2951 end:
2952 #if 1
2953         /* make sure we re-use sessions */
2954         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2955 #else
2956         /* This kills performance */
2957 /*      SSL_shutdown(con); A shutdown gets sent in the
2958  *      BIO_free_all(io) procession */
2959 #endif
2960
2961 err:
2962
2963         if (ret >= 0)
2964                 BIO_printf(bio_s_out,"ACCEPT\n");
2965
2966         if (buf != NULL) OPENSSL_free(buf);
2967         if (io != NULL) BIO_free_all(io);
2968 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2969         return(ret);
2970         }
2971
2972 #ifndef OPENSSL_NO_RSA
2973 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2974         {
2975         BIGNUM *bn = NULL;
2976         static RSA *rsa_tmp=NULL;
2977
2978         if (!rsa_tmp && ((bn = BN_new()) == NULL))
2979                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
2980         if (!rsa_tmp && bn)
2981                 {
2982                 if (!s_quiet)
2983                         {
2984                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
2985                         (void)BIO_flush(bio_err);
2986                         }
2987                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2988                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
2989                         {
2990                         if(rsa_tmp) RSA_free(rsa_tmp);
2991                         rsa_tmp = NULL;
2992                         }
2993                 if (!s_quiet)
2994                         {
2995                         BIO_printf(bio_err,"\n");
2996                         (void)BIO_flush(bio_err);
2997                         }
2998                 BN_free(bn);
2999                 }
3000         return(rsa_tmp);
3001         }
3002 #endif
3003
3004 #define MAX_SESSION_ID_ATTEMPTS 10
3005 static int generate_session_id(const SSL *ssl, unsigned char *id,
3006                                 unsigned int *id_len)
3007         {
3008         unsigned int count = 0;
3009         do      {
3010                 RAND_pseudo_bytes(id, *id_len);
3011                 /* Prefix the session_id with the required prefix. NB: If our
3012                  * prefix is too long, clip it - but there will be worse effects
3013                  * anyway, eg. the server could only possibly create 1 session
3014                  * ID (ie. the prefix!) so all future session negotiations will
3015                  * fail due to conflicts. */
3016                 memcpy(id, session_id_prefix,
3017                         (strlen(session_id_prefix) < *id_len) ?
3018                         strlen(session_id_prefix) : *id_len);
3019                 }
3020         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3021                 (++count < MAX_SESSION_ID_ATTEMPTS));
3022         if(count >= MAX_SESSION_ID_ATTEMPTS)
3023                 return 0;
3024         return 1;
3025         }