1e15281c213afafbb726e71eb0d42d94862dd102
[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 not_resumable_sess_cb(SSL *s, int is_forward_secure);
208 static int sv_body(char *hostname, int s, int stype, unsigned char *context);
209 static int www_body(char *hostname, int s, int stype, unsigned char *context);
210 static int rev_body(char *hostname, int s, int stype, unsigned char *context);
211 static void close_accept_socket(void );
212 static void sv_usage(void);
213 static int init_ssl_connection(SSL *s);
214 static void print_stats(BIO *bp,SSL_CTX *ctx);
215 static int generate_session_id(const SSL *ssl, unsigned char *id,
216                                 unsigned int *id_len);
217 static void init_session_cache_ctx(SSL_CTX *sctx);
218 static void free_sessions(void);
219 #ifndef OPENSSL_NO_DH
220 static DH *load_dh_param(const char *dhfile);
221 #endif
222
223 #ifdef MONOLITH
224 static void s_server_init(void);
225 #endif
226
227 /* static int load_CA(SSL_CTX *ctx, char *file);*/
228
229 #undef BUFSIZZ
230 #define BUFSIZZ 16*1024
231 static int bufsize=BUFSIZZ;
232 static int accept_socket= -1;
233
234 #define TEST_CERT       "server.pem"
235 #ifndef OPENSSL_NO_TLSEXT
236 #define TEST_CERT2      "server2.pem"
237 #endif
238 #undef PROG
239 #define PROG            s_server_main
240
241 extern int verify_depth, verify_return_error, verify_quiet;
242
243 static int s_server_verify=SSL_VERIFY_NONE;
244 static int s_server_session_id_context = 1; /* anything will do */
245 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL, *s_chain_file=NULL;
246 #ifndef OPENSSL_NO_TLSEXT
247 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
248 #endif
249 static char *s_dcert_file=NULL,*s_dkey_file=NULL, *s_dchain_file=NULL;
250 #ifdef FIONBIO
251 static int s_nbio=0;
252 #endif
253 static int s_nbio_test=0;
254 int s_crlf=0;
255 static SSL_CTX *ctx=NULL;
256 #ifndef OPENSSL_NO_TLSEXT
257 static SSL_CTX *ctx2=NULL;
258 #endif
259 static int www=0;
260
261 static BIO *bio_s_out=NULL;
262 static BIO *bio_s_msg = NULL;
263 static int s_debug=0;
264 #ifndef OPENSSL_NO_TLSEXT
265 static int s_tlsextdebug=0;
266 static int s_tlsextstatus=0;
267 static int cert_status_cb(SSL *s, void *arg);
268 #endif
269 static int no_resume_ephemeral = 0;
270 static int s_msg=0;
271 static int s_quiet=0;
272 static int s_ign_eof=0;
273 static int s_brief=0;
274
275 static char *keymatexportlabel=NULL;
276 static int keymatexportlen=20;
277
278 static int hack=0;
279 #ifndef OPENSSL_NO_ENGINE
280 static char *engine_id=NULL;
281 #endif
282 static const char *session_id_prefix=NULL;
283
284 static int enable_timeouts = 0;
285 static long socket_mtu;
286 #ifndef OPENSSL_NO_DTLS1
287 static int cert_chain = 0;
288 #endif
289
290 #ifndef OPENSSL_NO_TLSEXT
291 static BIO *serverinfo_in = NULL;
292 static const char *s_serverinfo_file = NULL;
293
294 #endif
295
296 #ifndef OPENSSL_NO_PSK
297 static char *psk_identity="Client_identity";
298 char *psk_key=NULL; /* by default PSK is not used */
299
300 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
301         unsigned char *psk, unsigned int max_psk_len)
302         {
303         unsigned int psk_len = 0;
304         int ret;
305         BIGNUM *bn = NULL;
306
307         if (s_debug)
308                 BIO_printf(bio_s_out,"psk_server_cb\n");
309         if (!identity)
310                 {
311                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
312                 goto out_err;
313                 }
314         if (s_debug)
315                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
316                         identity ? (int)strlen(identity) : 0, identity);
317
318         /* here we could lookup the given identity e.g. from a database */
319         if (strcmp(identity, psk_identity) != 0)
320                 {
321                 BIO_printf(bio_s_out, "PSK error: client identity not found"
322                            " (got '%s' expected '%s')\n", identity,
323                            psk_identity);
324                 goto out_err;
325                 }
326         if (s_debug)
327                 BIO_printf(bio_s_out, "PSK client identity found\n");
328
329         /* convert the PSK key to binary */
330         ret = BN_hex2bn(&bn, psk_key);
331         if (!ret)
332                 {
333                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
334                 if (bn)
335                         BN_free(bn);
336                 return 0;
337                 }
338         if (BN_num_bytes(bn) > (int)max_psk_len)
339                 {
340                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
341                         max_psk_len, BN_num_bytes(bn));
342                 BN_free(bn);
343                 return 0;
344                 }
345
346         ret = BN_bn2bin(bn, psk);
347         BN_free(bn);
348
349         if (ret < 0)
350                 goto out_err;
351         psk_len = (unsigned int)ret;
352
353         if (s_debug)
354                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
355         return psk_len;
356  out_err:
357         if (s_debug)
358                 BIO_printf(bio_err, "Error in PSK server callback\n");
359         return 0;
360         }
361 #endif
362
363 #ifndef OPENSSL_NO_SRP
364 /* This is a context that we pass to callbacks */
365 typedef struct srpsrvparm_st
366         {
367         char *login;
368         SRP_VBASE *vb;
369         SRP_user_pwd *user;
370         } srpsrvparm;
371
372 /* This callback pretends to require some asynchronous logic in order to obtain
373    a verifier. When the callback is called for a new connection we return
374    with a negative value. This will provoke the accept etc to return with
375    an LOOKUP_X509. The main logic of the reinvokes the suspended call 
376    (which would normally occur after a worker has finished) and we
377    set the user parameters. 
378 */
379 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
380         {
381         srpsrvparm *p = (srpsrvparm *)arg;
382         if (p->login == NULL && p->user == NULL )
383                 {
384                 p->login = SSL_get_srp_username(s);
385                 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
386                 return (-1) ;
387                 }
388
389         if (p->user == NULL)
390                 {
391                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
392                 return SSL3_AL_FATAL;
393                 }
394         if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
395                                      p->user->info) < 0)
396                 {
397                 *ad = SSL_AD_INTERNAL_ERROR;
398                 return SSL3_AL_FATAL;
399                 }
400         BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
401         /* need to check whether there are memory leaks */
402         p->user = NULL;
403         p->login = NULL;
404         return SSL_ERROR_NONE;
405         }
406
407 #endif
408
409 #ifdef MONOLITH
410 static void s_server_init(void)
411         {
412         accept_socket=-1;
413         s_server_verify=SSL_VERIFY_NONE;
414         s_dcert_file=NULL;
415         s_dkey_file=NULL;
416         s_dchain_file=NULL;
417         s_cert_file=TEST_CERT;
418         s_key_file=NULL;
419         s_chain_file=NULL;
420 #ifndef OPENSSL_NO_TLSEXT
421         s_cert_file2=TEST_CERT2;
422         s_key_file2=NULL;
423         ctx2=NULL;
424 #endif
425 #ifdef FIONBIO
426         s_nbio=0;
427 #endif
428         s_nbio_test=0;
429         ctx=NULL;
430         www=0;
431
432         bio_s_out=NULL;
433         s_debug=0;
434         s_msg=0;
435         s_quiet=0;
436         s_brief=0;
437         hack=0;
438 #ifndef OPENSSL_NO_ENGINE
439         engine_id=NULL;
440 #endif
441         }
442 #endif
443
444 static void sv_usage(void)
445         {
446         BIO_printf(bio_err,"usage: s_server [args ...]\n");
447         BIO_printf(bio_err,"\n");
448         BIO_printf(bio_err," -accept port  - TCP/IP port to accept on (default is %d)\n",PORT);
449         BIO_printf(bio_err," -unix path    - unix domain socket to accept on\n");
450         BIO_printf(bio_err," -unlink       - for -unix, unlink existing socket first\n");
451         BIO_printf(bio_err," -context arg  - set session ID context\n");
452         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
453         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
454         BIO_printf(bio_err," -verify_return_error - return verification errors\n");
455         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
456         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
457         BIO_printf(bio_err," -naccept arg  - terminate after 'arg' connections\n");
458 #ifndef OPENSSL_NO_TLSEXT
459         BIO_printf(bio_err," -serverinfo arg - PEM serverinfo file for certificate\n");
460 #endif
461     BIO_printf(bio_err," -no_resumption_on_reneg - set SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION flag\n");
462         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
463                            "                 The CRL(s) are appended to the certificate file\n");
464         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
465                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
466                            "                 the certificate file.\n");
467         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
468         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
469         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
470         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
471         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
472         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
473         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
474         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
475         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
476         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
477         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
478         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
479 #ifndef OPENSSL_NO_ECDH
480         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
481                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
482                            "                 (default is nistp256).\n");
483 #endif
484 #ifdef FIONBIO
485         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
486 #endif
487         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
488         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
489         BIO_printf(bio_err," -debug        - Print more output\n");
490         BIO_printf(bio_err," -msg          - Show protocol messages\n");
491         BIO_printf(bio_err," -state        - Print the SSL states\n");
492         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
493         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
494         BIO_printf(bio_err," -trusted_first - Use locally trusted CA's first when building trust chain\n");
495         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
496         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
497         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
498         BIO_printf(bio_err," -quiet        - No server output\n");
499         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
500 #ifndef OPENSSL_NO_PSK
501         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
502         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
503 # ifndef OPENSSL_NO_JPAKE
504         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
505 # endif
506 #endif
507 #ifndef OPENSSL_NO_SRP
508         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
509         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
510 #endif
511         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
512         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
513         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
514         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
515         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
516         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
517         BIO_printf(bio_err," -dtls1_2      - Just talk DTLSv1.2\n");
518         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
519         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
520         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
521         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
522         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
523         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
524         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
525         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
526 #ifndef OPENSSL_NO_DH
527         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
528 #endif
529 #ifndef OPENSSL_NO_ECDH
530         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
531 #endif
532         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
533         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
534         BIO_printf(bio_err," -hack         - workaround for early Netscape code\n");
535         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
536         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
537         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
538         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
539 #ifndef OPENSSL_NO_ENGINE
540         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
541 #endif
542         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
543         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
544 #ifndef OPENSSL_NO_TLSEXT
545         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
546         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
547         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
548         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
549         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
550         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
551         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
552         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
553         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
554 # ifndef OPENSSL_NO_NEXTPROTONEG
555         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
556 # endif
557         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
558         BIO_printf(bio_err," -alpn arg  - set the advertised protocols for the ALPN extension (comma-separated list)\n");
559 #endif
560         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
561         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
562         BIO_printf(bio_err," -status           - respond to certificate status requests\n");
563         BIO_printf(bio_err," -status_verbose   - enable status request verbose printout\n");
564         BIO_printf(bio_err," -status_timeout n - status request responder timeout\n");
565         BIO_printf(bio_err," -status_url URL   - status request fallback URL\n");
566         }
567
568 static int local_argc=0;
569 static char **local_argv;
570
571 #ifdef CHARSET_EBCDIC
572 static int ebcdic_new(BIO *bi);
573 static int ebcdic_free(BIO *a);
574 static int ebcdic_read(BIO *b, char *out, int outl);
575 static int ebcdic_write(BIO *b, const char *in, int inl);
576 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
577 static int ebcdic_gets(BIO *bp, char *buf, int size);
578 static int ebcdic_puts(BIO *bp, const char *str);
579
580 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
581 static BIO_METHOD methods_ebcdic=
582         {
583         BIO_TYPE_EBCDIC_FILTER,
584         "EBCDIC/ASCII filter",
585         ebcdic_write,
586         ebcdic_read,
587         ebcdic_puts,
588         ebcdic_gets,
589         ebcdic_ctrl,
590         ebcdic_new,
591         ebcdic_free,
592         };
593
594 typedef struct
595 {
596         size_t  alloced;
597         char    buff[1];
598 } EBCDIC_OUTBUFF;
599
600 BIO_METHOD *BIO_f_ebcdic_filter()
601 {
602         return(&methods_ebcdic);
603 }
604
605 static int ebcdic_new(BIO *bi)
606 {
607         EBCDIC_OUTBUFF *wbuf;
608
609         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
610         wbuf->alloced = 1024;
611         wbuf->buff[0] = '\0';
612
613         bi->ptr=(char *)wbuf;
614         bi->init=1;
615         bi->flags=0;
616         return(1);
617 }
618
619 static int ebcdic_free(BIO *a)
620 {
621         if (a == NULL) return(0);
622         if (a->ptr != NULL)
623                 OPENSSL_free(a->ptr);
624         a->ptr=NULL;
625         a->init=0;
626         a->flags=0;
627         return(1);
628 }
629         
630 static int ebcdic_read(BIO *b, char *out, int outl)
631 {
632         int ret=0;
633
634         if (out == NULL || outl == 0) return(0);
635         if (b->next_bio == NULL) return(0);
636
637         ret=BIO_read(b->next_bio,out,outl);
638         if (ret > 0)
639                 ascii2ebcdic(out,out,ret);
640         return(ret);
641 }
642
643 static int ebcdic_write(BIO *b, const char *in, int inl)
644 {
645         EBCDIC_OUTBUFF *wbuf;
646         int ret=0;
647         int num;
648         unsigned char n;
649
650         if ((in == NULL) || (inl <= 0)) return(0);
651         if (b->next_bio == NULL) return(0);
652
653         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
654
655         if (inl > (num = wbuf->alloced))
656         {
657                 num = num + num;  /* double the size */
658                 if (num < inl)
659                         num = inl;
660                 OPENSSL_free(wbuf);
661                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
662
663                 wbuf->alloced = num;
664                 wbuf->buff[0] = '\0';
665
666                 b->ptr=(char *)wbuf;
667         }
668
669         ebcdic2ascii(wbuf->buff, in, inl);
670
671         ret=BIO_write(b->next_bio, wbuf->buff, inl);
672
673         return(ret);
674 }
675
676 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
677 {
678         long ret;
679
680         if (b->next_bio == NULL) return(0);
681         switch (cmd)
682         {
683         case BIO_CTRL_DUP:
684                 ret=0L;
685                 break;
686         default:
687                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
688                 break;
689         }
690         return(ret);
691 }
692
693 static int ebcdic_gets(BIO *bp, char *buf, int size)
694 {
695         int i, ret=0;
696         if (bp->next_bio == NULL) return(0);
697 /*      return(BIO_gets(bp->next_bio,buf,size));*/
698         for (i=0; i<size-1; ++i)
699         {
700                 ret = ebcdic_read(bp,&buf[i],1);
701                 if (ret <= 0)
702                         break;
703                 else if (buf[i] == '\n')
704                 {
705                         ++i;
706                         break;
707                 }
708         }
709         if (i < size)
710                 buf[i] = '\0';
711         return (ret < 0 && i == 0) ? ret : i;
712 }
713
714 static int ebcdic_puts(BIO *bp, const char *str)
715 {
716         if (bp->next_bio == NULL) return(0);
717         return ebcdic_write(bp, str, strlen(str));
718 }
719 #endif
720
721 #ifndef OPENSSL_NO_TLSEXT
722
723 /* This is a context that we pass to callbacks */
724 typedef struct tlsextctx_st {
725    char * servername;
726    BIO * biodebug;
727    int extension_error;
728 } tlsextctx;
729
730
731 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
732         {
733         tlsextctx * p = (tlsextctx *) arg;
734         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
735         if (servername && p->biodebug) 
736                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
737         
738         if (!p->servername)
739                 return SSL_TLSEXT_ERR_NOACK;
740         
741         if (servername)
742                 {
743                 if (strcasecmp(servername,p->servername)) 
744                         return p->extension_error;
745                 if (ctx2)
746                         {
747                         BIO_printf(p->biodebug,"Switching server context.\n");
748                         SSL_set_SSL_CTX(s,ctx2);
749                         }     
750                 }
751         return SSL_TLSEXT_ERR_OK;
752 }
753
754 /* Structure passed to cert status callback */
755
756 typedef struct tlsextstatusctx_st {
757    /* Default responder to use */
758    char *host, *path, *port;
759    int use_ssl;
760    int timeout;
761    BIO *err;
762    int verbose;
763 } tlsextstatusctx;
764
765 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
766
767 /* Certificate Status callback. This is called when a client includes a
768  * certificate status request extension.
769  *
770  * This is a simplified version. It examines certificates each time and
771  * makes one OCSP responder query for each request.
772  *
773  * A full version would store details such as the OCSP certificate IDs and
774  * minimise the number of OCSP responses by caching them until they were
775  * considered "expired".
776  */
777
778 static int cert_status_cb(SSL *s, void *arg)
779         {
780         tlsextstatusctx *srctx = arg;
781         BIO *err = srctx->err;
782         char *host, *port, *path;
783         int use_ssl;
784         unsigned char *rspder = NULL;
785         int rspderlen;
786         STACK_OF(OPENSSL_STRING) *aia = NULL;
787         X509 *x = NULL;
788         X509_STORE_CTX inctx;
789         X509_OBJECT obj;
790         OCSP_REQUEST *req = NULL;
791         OCSP_RESPONSE *resp = NULL;
792         OCSP_CERTID *id = NULL;
793         STACK_OF(X509_EXTENSION) *exts;
794         int ret = SSL_TLSEXT_ERR_NOACK;
795         int i;
796 #if 0
797 STACK_OF(OCSP_RESPID) *ids;
798 SSL_get_tlsext_status_ids(s, &ids);
799 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
800 #endif
801         if (srctx->verbose)
802                 BIO_puts(err, "cert_status: callback called\n");
803         /* Build up OCSP query from server certificate */
804         x = SSL_get_certificate(s);
805         aia = X509_get1_ocsp(x);
806         if (aia)
807                 {
808                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
809                         &host, &port, &path, &use_ssl))
810                         {
811                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
812                         goto err;
813                         }
814                 if (srctx->verbose)
815                         BIO_printf(err, "cert_status: AIA URL: %s\n",
816                                         sk_OPENSSL_STRING_value(aia, 0));
817                 }
818         else
819                 {
820                 if (!srctx->host)
821                         {
822                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
823                         goto done;
824                         }
825                 host = srctx->host;
826                 path = srctx->path;
827                 port = srctx->port;
828                 use_ssl = srctx->use_ssl;
829                 }
830                 
831         if (!X509_STORE_CTX_init(&inctx,
832                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
833                                 NULL, NULL))
834                 goto err;
835         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
836                                 X509_get_issuer_name(x),&obj) <= 0)
837                 {
838                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
839                 X509_STORE_CTX_cleanup(&inctx);
840                 goto done;
841                 }
842         req = OCSP_REQUEST_new();
843         if (!req)
844                 goto err;
845         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
846         X509_free(obj.data.x509);
847         X509_STORE_CTX_cleanup(&inctx);
848         if (!id)
849                 goto err;
850         if (!OCSP_request_add0_id(req, id))
851                 goto err;
852         id = NULL;
853         /* Add any extensions to the request */
854         SSL_get_tlsext_status_exts(s, &exts);
855         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
856                 {
857                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
858                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
859                         goto err;
860                 }
861         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
862                                         srctx->timeout);
863         if (!resp)
864                 {
865                 BIO_puts(err, "cert_status: error querying responder\n");
866                 goto done;
867                 }
868         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
869         if (rspderlen <= 0)
870                 goto err;
871         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
872         if (srctx->verbose)
873                 {
874                 BIO_puts(err, "cert_status: ocsp response sent:\n");
875                 OCSP_RESPONSE_print(err, resp, 2);
876                 }
877         ret = SSL_TLSEXT_ERR_OK;
878         done:
879         if (ret != SSL_TLSEXT_ERR_OK)
880                 ERR_print_errors(err);
881         if (aia)
882                 {
883                 OPENSSL_free(host);
884                 OPENSSL_free(path);
885                 OPENSSL_free(port);
886                 X509_email_free(aia);
887                 }
888         if (id)
889                 OCSP_CERTID_free(id);
890         if (req)
891                 OCSP_REQUEST_free(req);
892         if (resp)
893                 OCSP_RESPONSE_free(resp);
894         return ret;
895         err:
896         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
897         goto done;
898         }
899
900 # ifndef OPENSSL_NO_NEXTPROTONEG
901 /* This is the context that we pass to next_proto_cb */
902 typedef struct tlsextnextprotoctx_st {
903         unsigned char *data;
904         unsigned int len;
905 } tlsextnextprotoctx;
906
907 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
908         {
909         tlsextnextprotoctx *next_proto = arg;
910
911         *data = next_proto->data;
912         *len = next_proto->len;
913
914         return SSL_TLSEXT_ERR_OK;
915         }
916 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
917
918 /* This the context that we pass to alpn_cb */
919 typedef struct tlsextalpnctx_st {
920         unsigned char *data;
921         unsigned short len;
922 } tlsextalpnctx;
923
924 static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg)
925         {
926         tlsextalpnctx *alpn_ctx = arg;
927
928         if (!s_quiet)
929                 {
930                 /* We can assume that |in| is syntactically valid. */
931                 unsigned i;
932                 BIO_printf(bio_s_out, "ALPN protocols advertised by the client: ");
933                 for (i = 0; i < inlen; )
934                         {
935                         if (i)
936                                 BIO_write(bio_s_out, ", ", 2);
937                         BIO_write(bio_s_out, &in[i + 1], in[i]);
938                         i += in[i] + 1;
939                         }
940                 BIO_write(bio_s_out, "\n", 1);
941                 }
942
943         if (SSL_select_next_proto((unsigned char**) out, outlen, alpn_ctx->data, alpn_ctx->len, in, inlen) !=
944             OPENSSL_NPN_NEGOTIATED)
945                 {
946                 return SSL_TLSEXT_ERR_NOACK;
947                 }
948
949         if (!s_quiet)
950                 {
951                 BIO_printf(bio_s_out, "ALPN protocols selected: ");
952                 BIO_write(bio_s_out, *out, *outlen);
953                 BIO_write(bio_s_out, "\n", 1);
954                 }
955
956         return SSL_TLSEXT_ERR_OK;
957         }
958 #endif  /* ndef OPENSSL_NO_TLSEXT */
959
960 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
961         {
962         /* disable resumption for sessions with forward secure ciphers */
963         return is_forward_secure;
964         }
965
966 int MAIN(int, char **);
967
968 #ifndef OPENSSL_NO_JPAKE
969 static char *jpake_secret = NULL;
970 #define no_jpake !jpake_secret
971 #else
972 #define no_jpake 1
973 #endif
974 #ifndef OPENSSL_NO_SRP
975         static srpsrvparm srp_callback_parm;
976 #endif
977 static char *srtp_profiles = NULL;
978
979 int MAIN(int argc, char *argv[])
980         {
981         X509_VERIFY_PARAM *vpm = NULL;
982         int badarg = 0;
983         short port=PORT;
984         const char *unix_path=NULL;
985 #ifndef NO_SYS_UN_H
986         int unlink_unix_path=0;
987 #endif
988         int (*server_cb)(char *hostname, int s, int stype, unsigned char *context);
989         char *CApath=NULL,*CAfile=NULL;
990         char *chCApath=NULL,*chCAfile=NULL;
991         char *vfyCApath=NULL,*vfyCAfile=NULL;
992         unsigned char *context = NULL;
993         char *dhfile = NULL;
994         int badop=0;
995         int ret=1;
996         int build_chain = 0;
997         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
998         int state=0;
999         const SSL_METHOD *meth=NULL;
1000         int socket_type=SOCK_STREAM;
1001         ENGINE *e=NULL;
1002         char *inrand=NULL;
1003         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
1004         char *passarg = NULL, *pass = NULL;
1005         char *dpassarg = NULL, *dpass = NULL;
1006         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
1007         X509 *s_cert = NULL, *s_dcert = NULL;
1008         STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
1009         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
1010         int no_cache = 0, ext_cache = 0;
1011         int rev = 0, naccept = -1;
1012         int sdebug = 0;
1013 #ifndef OPENSSL_NO_TLSEXT
1014         EVP_PKEY *s_key2 = NULL;
1015         X509 *s_cert2 = NULL;
1016         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
1017 # ifndef OPENSSL_NO_NEXTPROTONEG
1018         const char *next_proto_neg_in = NULL;
1019         tlsextnextprotoctx next_proto = { NULL, 0};
1020 # endif
1021         const char *alpn_in = NULL;
1022         tlsextalpnctx alpn_ctx = { NULL, 0};
1023 #endif
1024 #ifndef OPENSSL_NO_PSK
1025         /* by default do not send a PSK identity hint */
1026         static char *psk_identity_hint=NULL;
1027 #endif
1028 #ifndef OPENSSL_NO_SRP
1029         char *srpuserseed = NULL;
1030         char *srp_verifier_file = NULL;
1031 #endif
1032         SSL_EXCERT *exc = NULL;
1033         SSL_CONF_CTX *cctx = NULL;
1034         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
1035
1036         char *crl_file = NULL;
1037         int crl_format = FORMAT_PEM;
1038         int crl_download = 0;
1039         STACK_OF(X509_CRL) *crls = NULL;
1040
1041         meth=SSLv23_server_method();
1042
1043         local_argc=argc;
1044         local_argv=argv;
1045
1046         apps_startup();
1047 #ifdef MONOLITH
1048         s_server_init();
1049 #endif
1050
1051         if (bio_err == NULL)
1052                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
1053
1054         if (!load_config(bio_err, NULL))
1055                 goto end;
1056
1057         cctx = SSL_CONF_CTX_new();
1058         if (!cctx)
1059                 goto end;
1060         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
1061         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
1062
1063         verify_depth=0;
1064 #ifdef FIONBIO
1065         s_nbio=0;
1066 #endif
1067         s_nbio_test=0;
1068
1069         argc--;
1070         argv++;
1071
1072         while (argc >= 1)
1073                 {
1074                 if      ((strcmp(*argv,"-port") == 0) ||
1075                          (strcmp(*argv,"-accept") == 0))
1076                         {
1077                         if (--argc < 1) goto bad;
1078                         if (!extract_port(*(++argv),&port))
1079                                 goto bad;
1080                         }
1081                 else if (strcmp(*argv,"-unix") == 0)
1082                         {
1083 #ifdef NO_SYS_UN_H
1084                         BIO_printf(bio_err, "unix domain sockets unsupported\n");
1085                         goto bad;
1086 #else
1087                         if (--argc < 1) goto bad;
1088                         unix_path = *(++argv);
1089 #endif
1090                         }
1091                 else if (strcmp(*argv,"-unlink") == 0)
1092                         {
1093 #ifdef NO_SYS_UN_H
1094                         BIO_printf(bio_err, "unix domain sockets unsupported\n");
1095                         goto bad;
1096 #else
1097                         unlink_unix_path = 1;
1098 #endif
1099                         }
1100                 else if (strcmp(*argv,"-naccept") == 0)
1101                         {
1102                         if (--argc < 1) goto bad;
1103                         naccept = atol(*(++argv));
1104                         if (naccept <= 0)
1105                                 {
1106                                 BIO_printf(bio_err, "bad accept value %s\n",
1107                                                         *argv);
1108                                 goto bad;
1109                                 }
1110                         }
1111                 else if (strcmp(*argv,"-verify") == 0)
1112                         {
1113                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1114                         if (--argc < 1) goto bad;
1115                         verify_depth=atoi(*(++argv));
1116                         if (!s_quiet)
1117                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1118                         }
1119                 else if (strcmp(*argv,"-Verify") == 0)
1120                         {
1121                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1122                                 SSL_VERIFY_CLIENT_ONCE;
1123                         if (--argc < 1) goto bad;
1124                         verify_depth=atoi(*(++argv));
1125                         if (!s_quiet)
1126                                 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1127                         }
1128                 else if (strcmp(*argv,"-context") == 0)
1129                         {
1130                         if (--argc < 1) goto bad;
1131                         context= (unsigned char *)*(++argv);
1132                         }
1133                 else if (strcmp(*argv,"-cert") == 0)
1134                         {
1135                         if (--argc < 1) goto bad;
1136                         s_cert_file= *(++argv);
1137                         }
1138                 else if (strcmp(*argv,"-CRL") == 0)
1139                         {
1140                         if (--argc < 1) goto bad;
1141                         crl_file= *(++argv);
1142                         }
1143                 else if (strcmp(*argv,"-crl_download") == 0)
1144                         crl_download = 1;
1145 #ifndef OPENSSL_NO_TLSEXT
1146                 else if (strcmp(*argv,"-serverinfo") == 0)
1147                         {
1148                         if (--argc < 1) goto bad;
1149                         s_serverinfo_file = *(++argv);
1150                         }
1151 #endif
1152                 else if (strcmp(*argv,"-certform") == 0)
1153                         {
1154                         if (--argc < 1) goto bad;
1155                         s_cert_format = str2fmt(*(++argv));
1156                         }
1157                 else if (strcmp(*argv,"-key") == 0)
1158                         {
1159                         if (--argc < 1) goto bad;
1160                         s_key_file= *(++argv);
1161                         }
1162                 else if (strcmp(*argv,"-keyform") == 0)
1163                         {
1164                         if (--argc < 1) goto bad;
1165                         s_key_format = str2fmt(*(++argv));
1166                         }
1167                 else if (strcmp(*argv,"-pass") == 0)
1168                         {
1169                         if (--argc < 1) goto bad;
1170                         passarg = *(++argv);
1171                         }
1172                 else if (strcmp(*argv,"-cert_chain") == 0)
1173                         {
1174                         if (--argc < 1) goto bad;
1175                         s_chain_file= *(++argv);
1176                         }
1177                 else if (strcmp(*argv,"-dhparam") == 0)
1178                         {
1179                         if (--argc < 1) goto bad;
1180                         dhfile = *(++argv);
1181                         }
1182                 else if (strcmp(*argv,"-dcertform") == 0)
1183                         {
1184                         if (--argc < 1) goto bad;
1185                         s_dcert_format = str2fmt(*(++argv));
1186                         }
1187                 else if (strcmp(*argv,"-dcert") == 0)
1188                         {
1189                         if (--argc < 1) goto bad;
1190                         s_dcert_file= *(++argv);
1191                         }
1192                 else if (strcmp(*argv,"-dkeyform") == 0)
1193                         {
1194                         if (--argc < 1) goto bad;
1195                         s_dkey_format = str2fmt(*(++argv));
1196                         }
1197                 else if (strcmp(*argv,"-dpass") == 0)
1198                         {
1199                         if (--argc < 1) goto bad;
1200                         dpassarg = *(++argv);
1201                         }
1202                 else if (strcmp(*argv,"-dkey") == 0)
1203                         {
1204                         if (--argc < 1) goto bad;
1205                         s_dkey_file= *(++argv);
1206                         }
1207                 else if (strcmp(*argv,"-dcert_chain") == 0)
1208                         {
1209                         if (--argc < 1) goto bad;
1210                         s_dchain_file= *(++argv);
1211                         }
1212                 else if (strcmp(*argv,"-nocert") == 0)
1213                         {
1214                         nocert=1;
1215                         }
1216                 else if (strcmp(*argv,"-CApath") == 0)
1217                         {
1218                         if (--argc < 1) goto bad;
1219                         CApath= *(++argv);
1220                         }
1221                 else if (strcmp(*argv,"-chainCApath") == 0)
1222                         {
1223                         if (--argc < 1) goto bad;
1224                         chCApath= *(++argv);
1225                         }
1226                 else if (strcmp(*argv,"-verifyCApath") == 0)
1227                         {
1228                         if (--argc < 1) goto bad;
1229                         vfyCApath= *(++argv);
1230                         }
1231                 else if (strcmp(*argv,"-no_cache") == 0)
1232                         no_cache = 1;
1233                 else if (strcmp(*argv,"-ext_cache") == 0)
1234                         ext_cache = 1;
1235                 else if (strcmp(*argv,"-CRLform") == 0)
1236                         {
1237                         if (--argc < 1) goto bad;
1238                         crl_format = str2fmt(*(++argv));
1239                         }
1240                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1241                         {
1242                         if (badarg)
1243                                 goto bad;
1244                         continue;
1245                         }
1246                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
1247                         {
1248                         if (badarg)
1249                                 goto bad;
1250                         continue;
1251                         }
1252                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
1253                         {
1254                         if (badarg)
1255                                 goto bad;
1256                         continue;
1257                         }
1258                 else if (strcmp(*argv,"-verify_return_error") == 0)
1259                         verify_return_error = 1;
1260                 else if (strcmp(*argv,"-verify_quiet") == 0)
1261                         verify_quiet = 1;
1262                 else if (strcmp(*argv,"-build_chain") == 0)
1263                         build_chain = 1;
1264                 else if (strcmp(*argv,"-CAfile") == 0)
1265                         {
1266                         if (--argc < 1) goto bad;
1267                         CAfile= *(++argv);
1268                         }
1269                 else if (strcmp(*argv,"-chainCAfile") == 0)
1270                         {
1271                         if (--argc < 1) goto bad;
1272                         chCAfile= *(++argv);
1273                         }
1274                 else if (strcmp(*argv,"-verifyCAfile") == 0)
1275                         {
1276                         if (--argc < 1) goto bad;
1277                         vfyCAfile= *(++argv);
1278                         }
1279 #ifdef FIONBIO  
1280                 else if (strcmp(*argv,"-nbio") == 0)
1281                         { s_nbio=1; }
1282 #endif
1283                 else if (strcmp(*argv,"-nbio_test") == 0)
1284                         {
1285 #ifdef FIONBIO  
1286                         s_nbio=1;
1287 #endif
1288                         s_nbio_test=1;
1289                         }
1290                 else if (strcmp(*argv,"-ign_eof") == 0)
1291                         s_ign_eof=1;
1292                 else if (strcmp(*argv,"-no_ign_eof") == 0)
1293                         s_ign_eof=0;
1294                 else if (strcmp(*argv,"-debug") == 0)
1295                         { s_debug=1; }
1296 #ifndef OPENSSL_NO_TLSEXT
1297                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1298                         s_tlsextdebug=1;
1299                 else if (strcmp(*argv,"-status") == 0)
1300                         s_tlsextstatus=1;
1301                 else if (strcmp(*argv,"-status_verbose") == 0)
1302                         {
1303                         s_tlsextstatus=1;
1304                         tlscstatp.verbose = 1;
1305                         }
1306                 else if (!strcmp(*argv, "-status_timeout"))
1307                         {
1308                         s_tlsextstatus=1;
1309                         if (--argc < 1) goto bad;
1310                         tlscstatp.timeout = atoi(*(++argv));
1311                         }
1312                 else if (!strcmp(*argv, "-status_url"))
1313                         {
1314                         s_tlsextstatus=1;
1315                         if (--argc < 1) goto bad;
1316                         if (!OCSP_parse_url(*(++argv),
1317                                         &tlscstatp.host,
1318                                         &tlscstatp.port,
1319                                         &tlscstatp.path,
1320                                         &tlscstatp.use_ssl))
1321                                 {
1322                                 BIO_printf(bio_err, "Error parsing URL\n");
1323                                 goto bad;
1324                                 }
1325                         }
1326 #endif
1327                 else if (strcmp(*argv,"-msg") == 0)
1328                         { s_msg=1; }
1329                 else if (strcmp(*argv,"-msgfile") == 0)
1330                         {
1331                         if (--argc < 1) goto bad;
1332                         bio_s_msg = BIO_new_file(*(++argv), "w");
1333                         }
1334 #ifndef OPENSSL_NO_SSL_TRACE
1335                 else if (strcmp(*argv,"-trace") == 0)
1336                         { s_msg=2; }
1337 #endif
1338                 else if (strcmp(*argv,"-security_debug") == 0)
1339                         { sdebug=1; }
1340                 else if (strcmp(*argv,"-security_debug_verbose") == 0)
1341                         { sdebug=2; }
1342                 else if (strcmp(*argv,"-hack") == 0)
1343                         { hack=1; }
1344                 else if (strcmp(*argv,"-state") == 0)
1345                         { state=1; }
1346                 else if (strcmp(*argv,"-crlf") == 0)
1347                         { s_crlf=1; }
1348                 else if (strcmp(*argv,"-quiet") == 0)
1349                         { s_quiet=1; }
1350                 else if (strcmp(*argv,"-brief") == 0)
1351                         {
1352                         s_quiet=1;
1353                         s_brief=1;
1354                         verify_quiet=1;
1355                         }
1356                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1357                         { no_tmp_rsa=1; }
1358                 else if (strcmp(*argv,"-no_dhe") == 0)
1359                         { no_dhe=1; }
1360                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1361                         { no_ecdhe=1; }
1362                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1363                         { no_resume_ephemeral = 1; }
1364 #ifndef OPENSSL_NO_PSK
1365                 else if (strcmp(*argv,"-psk_hint") == 0)
1366                         {
1367                         if (--argc < 1) goto bad;
1368                         psk_identity_hint= *(++argv);
1369                         }
1370                 else if (strcmp(*argv,"-psk") == 0)
1371                         {
1372                         size_t i;
1373
1374                         if (--argc < 1) goto bad;
1375                         psk_key=*(++argv);
1376                         for (i=0; i<strlen(psk_key); i++)
1377                                 {
1378                                 if (isxdigit((unsigned char)psk_key[i]))
1379                                         continue;
1380                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1381                                 goto bad;
1382                                 }
1383                         }
1384 #endif
1385 #ifndef OPENSSL_NO_SRP
1386                 else if (strcmp(*argv, "-srpvfile") == 0)
1387                         {
1388                         if (--argc < 1) goto bad;
1389                         srp_verifier_file = *(++argv);
1390                         meth = TLSv1_server_method();
1391                         }
1392                 else if (strcmp(*argv, "-srpuserseed") == 0)
1393                         {
1394                         if (--argc < 1) goto bad;
1395                         srpuserseed = *(++argv);
1396                         meth = TLSv1_server_method();
1397                         }
1398 #endif
1399                 else if (strcmp(*argv,"-rev") == 0)
1400                         { rev=1; }
1401                 else if (strcmp(*argv,"-www") == 0)
1402                         { www=1; }
1403                 else if (strcmp(*argv,"-WWW") == 0)
1404                         { www=2; }
1405                 else if (strcmp(*argv,"-HTTP") == 0)
1406                         { www=3; }
1407 #ifndef OPENSSL_NO_SSL2
1408                 else if (strcmp(*argv,"-ssl2") == 0)
1409                         { meth=SSLv2_server_method(); }
1410 #endif
1411 #ifndef OPENSSL_NO_SSL3
1412                 else if (strcmp(*argv,"-ssl3") == 0)
1413                         { meth=SSLv3_server_method(); }
1414 #endif
1415 #ifndef OPENSSL_NO_TLS1
1416                 else if (strcmp(*argv,"-tls1") == 0)
1417                         { meth=TLSv1_server_method(); }
1418                 else if (strcmp(*argv,"-tls1_1") == 0)
1419                         { meth=TLSv1_1_server_method(); }
1420                 else if (strcmp(*argv,"-tls1_2") == 0)
1421                         { meth=TLSv1_2_server_method(); }
1422 #endif
1423 #ifndef OPENSSL_NO_DTLS1
1424                 else if (strcmp(*argv,"-dtls") == 0)
1425                         { 
1426                         meth=DTLS_server_method();
1427                         socket_type = SOCK_DGRAM;
1428                         }
1429                 else if (strcmp(*argv,"-dtls1") == 0)
1430                         { 
1431                         meth=DTLSv1_server_method();
1432                         socket_type = SOCK_DGRAM;
1433                         }
1434                 else if (strcmp(*argv,"-dtls1_2") == 0)
1435                         { 
1436                         meth=DTLSv1_2_server_method();
1437                         socket_type = SOCK_DGRAM;
1438                         }
1439                 else if (strcmp(*argv,"-timeout") == 0)
1440                         enable_timeouts = 1;
1441                 else if (strcmp(*argv,"-mtu") == 0)
1442                         {
1443                         if (--argc < 1) goto bad;
1444                         socket_mtu = atol(*(++argv));
1445                         }
1446                 else if (strcmp(*argv, "-chain") == 0)
1447                         cert_chain = 1;
1448 #endif
1449                 else if (strcmp(*argv, "-id_prefix") == 0)
1450                         {
1451                         if (--argc < 1) goto bad;
1452                         session_id_prefix = *(++argv);
1453                         }
1454 #ifndef OPENSSL_NO_ENGINE
1455                 else if (strcmp(*argv,"-engine") == 0)
1456                         {
1457                         if (--argc < 1) goto bad;
1458                         engine_id= *(++argv);
1459                         }
1460 #endif
1461                 else if (strcmp(*argv,"-rand") == 0)
1462                         {
1463                         if (--argc < 1) goto bad;
1464                         inrand= *(++argv);
1465                         }
1466 #ifndef OPENSSL_NO_TLSEXT
1467                 else if (strcmp(*argv,"-servername") == 0)
1468                         {
1469                         if (--argc < 1) goto bad;
1470                         tlsextcbp.servername= *(++argv);
1471                         }
1472                 else if (strcmp(*argv,"-servername_fatal") == 0)
1473                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1474                 else if (strcmp(*argv,"-cert2") == 0)
1475                         {
1476                         if (--argc < 1) goto bad;
1477                         s_cert_file2= *(++argv);
1478                         }
1479                 else if (strcmp(*argv,"-key2") == 0)
1480                         {
1481                         if (--argc < 1) goto bad;
1482                         s_key_file2= *(++argv);
1483                         }
1484 # ifndef OPENSSL_NO_NEXTPROTONEG
1485                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1486                         {
1487                         if (--argc < 1) goto bad;
1488                         next_proto_neg_in = *(++argv);
1489                         }
1490 # endif
1491                 else if (strcmp(*argv,"-alpn") == 0)
1492                         {
1493                         if (--argc < 1) goto bad;
1494                         alpn_in = *(++argv);
1495                         }
1496 #endif
1497 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1498                 else if (strcmp(*argv,"-jpake") == 0)
1499                         {
1500                         if (--argc < 1) goto bad;
1501                         jpake_secret = *(++argv);
1502                         }
1503 #endif
1504                 else if (strcmp(*argv,"-use_srtp") == 0)
1505                         {
1506                         if (--argc < 1) goto bad;
1507                         srtp_profiles = *(++argv);
1508                         }
1509                 else if (strcmp(*argv,"-keymatexport") == 0)
1510                         {
1511                         if (--argc < 1) goto bad;
1512                         keymatexportlabel= *(++argv);
1513                         }
1514                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1515                         {
1516                         if (--argc < 1) goto bad;
1517                         keymatexportlen=atoi(*(++argv));
1518                         if (keymatexportlen == 0) goto bad;
1519                         }
1520                 else
1521                         {
1522                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1523                         badop=1;
1524                         break;
1525                         }
1526                 argc--;
1527                 argv++;
1528                 }
1529         if (badop)
1530                 {
1531 bad:
1532                 sv_usage();
1533                 goto end;
1534                 }
1535 #ifndef OPENSSL_NO_DTLS1
1536         if (www && socket_type == SOCK_DGRAM)
1537                 {
1538                 BIO_printf(bio_err,
1539                                 "Can't use -HTTP, -www or -WWW with DTLS\n");
1540                 goto end;
1541                 }
1542 #endif
1543
1544         if (unix_path && (socket_type != SOCK_STREAM))
1545                 {
1546                 BIO_printf(bio_err, "Can't use unix sockets and datagrams together\n");
1547                         goto end;
1548                 }
1549 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1550         if (jpake_secret)
1551                 {
1552                 if (psk_key)
1553                         {
1554                         BIO_printf(bio_err,
1555                                    "Can't use JPAKE and PSK together\n");
1556                         goto end;
1557                         }
1558                 psk_identity = "JPAKE";
1559                 }
1560 #endif
1561
1562         SSL_load_error_strings();
1563         OpenSSL_add_ssl_algorithms();
1564
1565 #ifndef OPENSSL_NO_ENGINE
1566         e = setup_engine(bio_err, engine_id, 1);
1567 #endif
1568
1569         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1570                 {
1571                 BIO_printf(bio_err, "Error getting password\n");
1572                 goto end;
1573                 }
1574
1575
1576         if (s_key_file == NULL)
1577                 s_key_file = s_cert_file;
1578 #ifndef OPENSSL_NO_TLSEXT
1579         if (s_key_file2 == NULL)
1580                 s_key_file2 = s_cert_file2;
1581 #endif
1582
1583         if (!load_excert(&exc, bio_err))
1584                 goto end;
1585
1586         if (nocert == 0)
1587                 {
1588                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1589                        "server certificate private key file");
1590                 if (!s_key)
1591                         {
1592                         ERR_print_errors(bio_err);
1593                         goto end;
1594                         }
1595
1596                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1597                         NULL, e, "server certificate file");
1598
1599                 if (!s_cert)
1600                         {
1601                         ERR_print_errors(bio_err);
1602                         goto end;
1603                         }
1604                 if (s_chain_file)
1605                         {
1606                         s_chain = load_certs(bio_err, s_chain_file,FORMAT_PEM,
1607                                         NULL, e, "server certificate chain");
1608                         if (!s_chain)
1609                                 goto end;
1610                         }
1611
1612 #ifndef OPENSSL_NO_TLSEXT
1613                 if (tlsextcbp.servername) 
1614                         {
1615                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1616                                 "second server certificate private key file");
1617                         if (!s_key2)
1618                                 {
1619                                 ERR_print_errors(bio_err);
1620                                 goto end;
1621                                 }
1622                         
1623                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1624                                 NULL, e, "second server certificate file");
1625                         
1626                         if (!s_cert2)
1627                                 {
1628                                 ERR_print_errors(bio_err);
1629                                 goto end;
1630                                 }
1631                         }
1632 #endif /* OPENSSL_NO_TLSEXT */
1633                 }
1634
1635 #if !defined(OPENSSL_NO_TLSEXT)
1636 # if !defined(OPENSSL_NO_NEXTPROTONEG) 
1637         if (next_proto_neg_in)
1638                 {
1639                 unsigned short len;
1640                 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1641                 if (next_proto.data == NULL)
1642                         goto end;
1643                 next_proto.len = len;
1644                 }
1645         else
1646                 {
1647                 next_proto.data = NULL;
1648                 }
1649 # endif
1650         alpn_ctx.data = NULL;
1651         if (alpn_in)
1652                 {
1653                 unsigned short len;
1654                 alpn_ctx.data = next_protos_parse(&len, alpn_in);
1655                 if (alpn_ctx.data == NULL)
1656                         goto end;
1657                 alpn_ctx.len = len;
1658                 }
1659 #endif
1660
1661         if (crl_file)
1662                 {
1663                 X509_CRL *crl;
1664                 crl = load_crl(crl_file, crl_format);
1665                 if (!crl)
1666                         {
1667                         BIO_puts(bio_err, "Error loading CRL\n");
1668                         ERR_print_errors(bio_err);
1669                         goto end;
1670                         }
1671                 crls = sk_X509_CRL_new_null();
1672                 if (!crls || !sk_X509_CRL_push(crls, crl))
1673                         {
1674                         BIO_puts(bio_err, "Error adding CRL\n");
1675                         ERR_print_errors(bio_err);
1676                         X509_CRL_free(crl);
1677                         goto end;
1678                         }
1679                 }
1680
1681
1682         if (s_dcert_file)
1683                 {
1684
1685                 if (s_dkey_file == NULL)
1686                         s_dkey_file = s_dcert_file;
1687
1688                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1689                                 0, dpass, e,
1690                                "second certificate private key file");
1691                 if (!s_dkey)
1692                         {
1693                         ERR_print_errors(bio_err);
1694                         goto end;
1695                         }
1696
1697                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1698                                 NULL, e, "second server certificate file");
1699
1700                 if (!s_dcert)
1701                         {
1702                         ERR_print_errors(bio_err);
1703                         goto end;
1704                         }
1705                 if (s_dchain_file)
1706                         {
1707                         s_dchain = load_certs(bio_err, s_dchain_file,FORMAT_PEM,
1708                                 NULL, e, "second server certificate chain");
1709                         if (!s_dchain)
1710                                 goto end;
1711                         }
1712
1713                 }
1714
1715         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1716                 && !RAND_status())
1717                 {
1718                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1719                 }
1720         if (inrand != NULL)
1721                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1722                         app_RAND_load_files(inrand));
1723
1724         if (bio_s_out == NULL)
1725                 {
1726                 if (s_quiet && !s_debug)
1727                         {
1728                         bio_s_out=BIO_new(BIO_s_null());
1729                         if (s_msg && !bio_s_msg)
1730                                 bio_s_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1731                         }
1732                 else
1733                         {
1734                         if (bio_s_out == NULL)
1735                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1736                         }
1737                 }
1738
1739 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1740         if (nocert)
1741 #endif
1742                 {
1743                 s_cert_file=NULL;
1744                 s_key_file=NULL;
1745                 s_dcert_file=NULL;
1746                 s_dkey_file=NULL;
1747 #ifndef OPENSSL_NO_TLSEXT
1748                 s_cert_file2=NULL;
1749                 s_key_file2=NULL;
1750 #endif
1751                 }
1752
1753         ctx=SSL_CTX_new(meth);
1754         if (sdebug)
1755                 ssl_ctx_security_debug(ctx, bio_err, sdebug);
1756         if (ctx == NULL)
1757                 {
1758                 ERR_print_errors(bio_err);
1759                 goto end;
1760                 }
1761         if (session_id_prefix)
1762                 {
1763                 if(strlen(session_id_prefix) >= 32)
1764                         BIO_printf(bio_err,
1765 "warning: id_prefix is too long, only one new session will be possible\n");
1766                 else if(strlen(session_id_prefix) >= 16)
1767                         BIO_printf(bio_err,
1768 "warning: id_prefix is too long if you use SSLv2\n");
1769                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1770                         {
1771                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1772                         ERR_print_errors(bio_err);
1773                         goto end;
1774                         }
1775                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1776                 }
1777         SSL_CTX_set_quiet_shutdown(ctx,1);
1778         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1779         if (exc) ssl_ctx_set_excert(ctx, exc);
1780         /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1781          * Setting read ahead solves this problem.
1782          */
1783         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1784
1785         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1786         if (no_cache)
1787                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1788         else if (ext_cache)
1789                 init_session_cache_ctx(ctx);
1790         else
1791                 SSL_CTX_sess_set_cache_size(ctx,128);
1792
1793         if (srtp_profiles != NULL)
1794                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1795
1796 #if 0
1797         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1798 #endif
1799
1800 #if 0
1801         if (s_cert_file == NULL)
1802                 {
1803                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1804                 goto end;
1805                 }
1806 #endif
1807
1808         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1809                 (!SSL_CTX_set_default_verify_paths(ctx)))
1810                 {
1811                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1812                 ERR_print_errors(bio_err);
1813                 /* goto end; */
1814                 }
1815         if (vpm)
1816                 SSL_CTX_set1_param(ctx, vpm);
1817
1818         ssl_ctx_add_crls(ctx, crls, 0);
1819         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1820                 goto end;
1821
1822         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1823                                                 crls, crl_download))
1824                 {
1825                 BIO_printf(bio_err, "Error loading store locations\n");
1826                 ERR_print_errors(bio_err);
1827                 goto end;
1828                 }
1829
1830 #ifndef OPENSSL_NO_TLSEXT
1831         if (s_cert2)
1832                 {
1833                 ctx2=SSL_CTX_new(meth);
1834                 if (ctx2 == NULL)
1835                         {
1836                         ERR_print_errors(bio_err);
1837                         goto end;
1838                         }
1839                 }
1840         
1841         if (ctx2)
1842                 {
1843                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1844
1845                 if (sdebug)
1846                         ssl_ctx_security_debug(ctx, bio_err, sdebug);
1847
1848                 if (session_id_prefix)
1849                         {
1850                         if(strlen(session_id_prefix) >= 32)
1851                                 BIO_printf(bio_err,
1852                                         "warning: id_prefix is too long, only one new session will be possible\n");
1853                         else if(strlen(session_id_prefix) >= 16)
1854                                 BIO_printf(bio_err,
1855                                         "warning: id_prefix is too long if you use SSLv2\n");
1856                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1857                                 {
1858                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1859                                 ERR_print_errors(bio_err);
1860                                 goto end;
1861                                 }
1862                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1863                         }
1864                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1865                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1866                 if (exc) ssl_ctx_set_excert(ctx2, exc);
1867                 /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1868                  * Setting read ahead solves this problem.
1869                  */
1870                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1871
1872                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1873
1874                 if (no_cache)
1875                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1876                 else if (ext_cache)
1877                         init_session_cache_ctx(ctx2);
1878                 else
1879                         SSL_CTX_sess_set_cache_size(ctx2,128);
1880
1881                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1882                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1883                         {
1884                         ERR_print_errors(bio_err);
1885                         }
1886                 if (vpm)
1887                         SSL_CTX_set1_param(ctx2, vpm);
1888
1889                 ssl_ctx_add_crls(ctx2, crls, 0);
1890                 if (!args_ssl_call(ctx2, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1891                         goto end;
1892                 }
1893
1894 # ifndef OPENSSL_NO_NEXTPROTONEG
1895         if (next_proto.data)
1896                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1897 # endif
1898         if (alpn_ctx.data)
1899                 SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx);
1900 #endif 
1901
1902 #ifndef OPENSSL_NO_DH
1903         if (!no_dhe)
1904                 {
1905                 DH *dh=NULL;
1906
1907                 if (dhfile)
1908                         dh = load_dh_param(dhfile);
1909                 else if (s_cert_file)
1910                         dh = load_dh_param(s_cert_file);
1911
1912                 if (dh != NULL)
1913                         {
1914                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1915                         }
1916                 else
1917                         {
1918                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1919                         }
1920                 (void)BIO_flush(bio_s_out);
1921
1922                 if (dh == NULL)
1923                         SSL_CTX_set_dh_auto(ctx, 1);
1924                 else if (!SSL_CTX_set_tmp_dh(ctx,dh))
1925                         {
1926                         BIO_puts(bio_err, "Error setting temp DH parameters\n");
1927                         ERR_print_errors(bio_err);
1928                         DH_free(dh);
1929                         goto end;
1930                         }
1931 #ifndef OPENSSL_NO_TLSEXT
1932                 if (ctx2)
1933                         {
1934                         if (!dhfile)
1935                                 { 
1936                                 DH *dh2=load_dh_param(s_cert_file2);
1937                                 if (dh2 != NULL)
1938                                         {
1939                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1940                                         (void)BIO_flush(bio_s_out);
1941
1942                                         DH_free(dh);
1943                                         dh = dh2;
1944                                         }
1945                                 }
1946                         if (dh == NULL)
1947                                 SSL_CTX_set_dh_auto(ctx2, 1);
1948                         else if (!SSL_CTX_set_tmp_dh(ctx2,dh))
1949                                 {
1950                                 BIO_puts(bio_err, "Error setting temp DH parameters\n");
1951                                 ERR_print_errors(bio_err);
1952                                 DH_free(dh);
1953                                 goto end;
1954                                 }
1955                         }
1956 #endif
1957                 DH_free(dh);
1958                 }
1959 #endif
1960
1961         if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1962                 goto end;
1963 #ifndef OPENSSL_NO_TLSEXT
1964         if (s_serverinfo_file != NULL
1965             && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file))
1966                 {
1967                 ERR_print_errors(bio_err);
1968                 goto end;
1969                 }
1970 #endif
1971 #ifndef OPENSSL_NO_TLSEXT
1972         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2, NULL, build_chain))
1973                 goto end; 
1974 #endif
1975         if (s_dcert != NULL)
1976                 {
1977                 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
1978                         goto end;
1979                 }
1980
1981 #ifndef OPENSSL_NO_RSA
1982 #if 1
1983         if (!no_tmp_rsa)
1984                 {
1985                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1986 #ifndef OPENSSL_NO_TLSEXT
1987                 if (ctx2) 
1988                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1989 #endif          
1990                 }
1991 #else
1992         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1993                 {
1994                 RSA *rsa;
1995
1996                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1997                 BIO_flush(bio_s_out);
1998
1999                 rsa=RSA_generate_key(512,RSA_F4,NULL);
2000
2001                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
2002                         {
2003                         ERR_print_errors(bio_err);
2004                         goto end;
2005                         }
2006 #ifndef OPENSSL_NO_TLSEXT
2007                         if (ctx2)
2008                                 {
2009                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
2010                                         {
2011                                         ERR_print_errors(bio_err);
2012                                         goto end;
2013                                         }
2014                                 }
2015 #endif
2016                 RSA_free(rsa);
2017                 BIO_printf(bio_s_out,"\n");
2018                 }
2019 #endif
2020 #endif
2021
2022         if (no_resume_ephemeral)
2023                 {
2024                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
2025 #ifndef OPENSSL_NO_TLSEXT
2026                 if (ctx2)
2027                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
2028 #endif
2029                 }
2030
2031 #ifndef OPENSSL_NO_PSK
2032 #ifdef OPENSSL_NO_JPAKE
2033         if (psk_key != NULL)
2034 #else
2035         if (psk_key != NULL || jpake_secret)
2036 #endif
2037                 {
2038                 if (s_debug)
2039                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
2040                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
2041                 }
2042
2043         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
2044                 {
2045                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
2046                 ERR_print_errors(bio_err);
2047                 goto end;
2048                 }
2049 #endif
2050
2051         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
2052         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
2053                 sizeof s_server_session_id_context);
2054
2055         /* Set DTLS cookie generation and verification callbacks */
2056         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
2057         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
2058
2059 #ifndef OPENSSL_NO_TLSEXT
2060         if (ctx2)
2061                 {
2062                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
2063                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
2064                         sizeof s_server_session_id_context);
2065
2066                 tlsextcbp.biodebug = bio_s_out;
2067                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
2068                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
2069                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
2070                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
2071                 }
2072 #endif
2073
2074 #ifndef OPENSSL_NO_SRP
2075         if (srp_verifier_file != NULL)
2076                 {
2077                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
2078                 srp_callback_parm.user = NULL;
2079                 srp_callback_parm.login = NULL;
2080                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
2081                         {
2082                         BIO_printf(bio_err,
2083                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
2084                                    srp_verifier_file, ret);
2085                                 goto end;
2086                         }
2087                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
2088                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);                        
2089                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
2090                 }
2091         else
2092 #endif
2093         if (CAfile != NULL)
2094                 {
2095                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
2096 #ifndef OPENSSL_NO_TLSEXT
2097                 if (ctx2) 
2098                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
2099 #endif
2100                 }
2101
2102         BIO_printf(bio_s_out,"ACCEPT\n");
2103         (void)BIO_flush(bio_s_out);
2104         if (rev)
2105                 server_cb = rev_body;
2106         else if (www)
2107                 server_cb = www_body;
2108         else
2109                 server_cb = sv_body;
2110 #ifndef NO_SYS_UN_H
2111         if (unix_path)
2112                 {
2113                 if (unlink_unix_path)
2114                         unlink(unix_path);
2115                 do_server_unix(unix_path,&accept_socket,server_cb, context, naccept);
2116                 }
2117         else
2118 #endif
2119                 do_server(port,socket_type,&accept_socket,server_cb, context, naccept);
2120         print_stats(bio_s_out,ctx);
2121         ret=0;
2122 end:
2123         if (ctx != NULL) SSL_CTX_free(ctx);
2124         if (s_cert)
2125                 X509_free(s_cert);
2126         if (crls)
2127                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2128         if (s_dcert)
2129                 X509_free(s_dcert);
2130         if (s_key)
2131                 EVP_PKEY_free(s_key);
2132         if (s_dkey)
2133                 EVP_PKEY_free(s_dkey);
2134         if (s_chain)
2135                 sk_X509_pop_free(s_chain, X509_free);
2136         if (s_dchain)
2137                 sk_X509_pop_free(s_dchain, X509_free);
2138         if (pass)
2139                 OPENSSL_free(pass);
2140         if (dpass)
2141                 OPENSSL_free(dpass);
2142         if (vpm)
2143                 X509_VERIFY_PARAM_free(vpm);
2144         free_sessions();
2145 #ifndef OPENSSL_NO_TLSEXT
2146         if (tlscstatp.host)
2147                 OPENSSL_free(tlscstatp.host);
2148         if (tlscstatp.port)
2149                 OPENSSL_free(tlscstatp.port);
2150         if (tlscstatp.path)
2151                 OPENSSL_free(tlscstatp.path);
2152         if (ctx2 != NULL) SSL_CTX_free(ctx2);
2153         if (s_cert2)
2154                 X509_free(s_cert2);
2155         if (s_key2)
2156                 EVP_PKEY_free(s_key2);
2157         if (serverinfo_in != NULL)
2158                 BIO_free(serverinfo_in);
2159 # ifndef OPENSSL_NO_NEXTPROTONEG
2160         if (next_proto.data)
2161                 OPENSSL_free(next_proto.data);
2162 # endif
2163         if (alpn_ctx.data)
2164                 OPENSSL_free(alpn_ctx.data);
2165 #endif
2166         ssl_excert_free(exc);
2167         if (ssl_args)
2168                 sk_OPENSSL_STRING_free(ssl_args);
2169         if (cctx)
2170                 SSL_CONF_CTX_free(cctx);
2171 #ifndef OPENSSL_NO_JPAKE
2172         if (jpake_secret && psk_key)
2173                 OPENSSL_free(psk_key);
2174 #endif
2175         if (bio_s_out != NULL)
2176                 {
2177                 BIO_free(bio_s_out);
2178                 bio_s_out=NULL;
2179                 }
2180         if (bio_s_msg != NULL)
2181                 {
2182                 BIO_free(bio_s_msg);
2183                 bio_s_msg = NULL;
2184                 }
2185         apps_shutdown();
2186         OPENSSL_EXIT(ret);
2187         }
2188
2189 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2190         {
2191         BIO_printf(bio,"%4ld items in the session cache\n",
2192                 SSL_CTX_sess_number(ssl_ctx));
2193         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
2194                 SSL_CTX_sess_connect(ssl_ctx));
2195         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
2196                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2197         BIO_printf(bio,"%4ld client connects that finished\n",
2198                 SSL_CTX_sess_connect_good(ssl_ctx));
2199         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
2200                 SSL_CTX_sess_accept(ssl_ctx));
2201         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
2202                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2203         BIO_printf(bio,"%4ld server accepts that finished\n",
2204                 SSL_CTX_sess_accept_good(ssl_ctx));
2205         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
2206         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
2207         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
2208         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
2209         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
2210                 SSL_CTX_sess_cache_full(ssl_ctx),
2211                 SSL_CTX_sess_get_cache_size(ssl_ctx));
2212         }
2213
2214 static int sv_body(char *hostname, int s, int stype, unsigned char *context)
2215         {
2216         char *buf=NULL;
2217         fd_set readfds;
2218         int ret=1,width;
2219         int k,i;
2220         unsigned long l;
2221         SSL *con=NULL;
2222         BIO *sbio;
2223 #ifndef OPENSSL_NO_KRB5
2224         KSSL_CTX *kctx;
2225 #endif
2226         struct timeval timeout;
2227 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2228         struct timeval tv;
2229 #else
2230         struct timeval *timeoutp;
2231 #endif
2232
2233         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
2234                 {
2235                 BIO_printf(bio_err,"out of memory\n");
2236                 goto err;
2237                 }
2238 #ifdef FIONBIO  
2239         if (s_nbio)
2240                 {
2241                 unsigned long sl=1;
2242
2243                 if (!s_quiet)
2244                         BIO_printf(bio_err,"turning on non blocking io\n");
2245                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2246                         ERR_print_errors(bio_err);
2247                 }
2248 #endif
2249
2250         if (con == NULL) {
2251                 con=SSL_new(ctx);
2252 #ifndef OPENSSL_NO_TLSEXT
2253         if (s_tlsextdebug)
2254                 {
2255                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2256                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2257                 }
2258         if (s_tlsextstatus)
2259                 {
2260                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2261                 tlscstatp.err = bio_err;
2262                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2263                 }
2264 #endif
2265 #ifndef OPENSSL_NO_KRB5
2266                 if ((kctx = kssl_ctx_new()) != NULL)
2267                         {
2268                         SSL_set0_kssl_ctx(con, kctx);
2269                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2270                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2271                         }
2272 #endif  /* OPENSSL_NO_KRB5 */
2273                 if(context)
2274                       SSL_set_session_id_context(con, context,
2275                                                  strlen((char *)context));
2276         }
2277         SSL_clear(con);
2278 #if 0
2279 #ifdef TLSEXT_TYPE_opaque_prf_input
2280         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2281 #endif
2282 #endif
2283
2284         if (stype == SOCK_DGRAM)
2285                 {
2286
2287                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2288
2289                 if (enable_timeouts)
2290                         {
2291                         timeout.tv_sec = 0;
2292                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2293                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2294                         
2295                         timeout.tv_sec = 0;
2296                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2297                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2298                         }
2299
2300                 if (socket_mtu > 28)
2301                         {
2302                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2303                         SSL_set_mtu(con, socket_mtu - 28);
2304                         }
2305                 else
2306                         /* want to do MTU discovery */
2307                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2308
2309         /* turn on cookie exchange */
2310         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2311                 }
2312         else
2313                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2314
2315         if (s_nbio_test)
2316                 {
2317                 BIO *test;
2318
2319                 test=BIO_new(BIO_f_nbio_test());
2320                 sbio=BIO_push(test,sbio);
2321                 }
2322 #ifndef OPENSSL_NO_JPAKE
2323         if(jpake_secret)
2324                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2325 #endif
2326
2327         SSL_set_bio(con,sbio,sbio);
2328         SSL_set_accept_state(con);
2329         /* SSL_set_fd(con,s); */
2330
2331         if (s_debug)
2332                 {
2333                 SSL_set_debug(con, 1);
2334                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2335                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2336                 }
2337         if (s_msg)
2338                 {
2339 #ifndef OPENSSL_NO_SSL_TRACE
2340                 if (s_msg == 2)
2341                         SSL_set_msg_callback(con, SSL_trace);
2342                 else
2343 #endif
2344                         SSL_set_msg_callback(con, msg_cb);
2345                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2346                 }
2347 #ifndef OPENSSL_NO_TLSEXT
2348         if (s_tlsextdebug)
2349                 {
2350                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2351                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2352                 }
2353 #endif
2354
2355         width=s+1;
2356         for (;;)
2357                 {
2358                 int read_from_terminal;
2359                 int read_from_sslcon;
2360
2361                 read_from_terminal = 0;
2362                 read_from_sslcon = SSL_pending(con);
2363
2364                 if (!read_from_sslcon)
2365                         {
2366                         FD_ZERO(&readfds);
2367 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2368                         openssl_fdset(fileno(stdin),&readfds);
2369 #endif
2370                         openssl_fdset(s,&readfds);
2371                         /* Note: under VMS with SOCKETSHR the second parameter is
2372                          * currently of type (int *) whereas under other systems
2373                          * it is (void *) if you don't have a cast it will choke
2374                          * the compiler: if you do have a cast then you can either
2375                          * go for (int *) or (void *).
2376                          */
2377 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2378                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2379                          * on sockets. As a workaround we timeout the select every
2380                          * second and check for any keypress. In a proper Windows
2381                          * application we wouldn't do this because it is inefficient.
2382                          */
2383                         tv.tv_sec = 1;
2384                         tv.tv_usec = 0;
2385                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2386                         if((i < 0) || (!i && !_kbhit() ) )continue;
2387                         if(_kbhit())
2388                                 read_from_terminal = 1;
2389 #elif defined(OPENSSL_SYS_BEOS_R5)
2390                         /* Under BeOS-R5 the situation is similar to DOS */
2391                         tv.tv_sec = 1;
2392                         tv.tv_usec = 0;
2393                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2394                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2395                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2396                                 continue;
2397                         if (read(fileno(stdin), buf, 0) >= 0)
2398                                 read_from_terminal = 1;
2399                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2400 #else
2401                         if ((SSL_version(con) == DTLS1_VERSION) &&
2402                                 DTLSv1_get_timeout(con, &timeout))
2403                                 timeoutp = &timeout;
2404                         else
2405                                 timeoutp = NULL;
2406
2407                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2408
2409                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2410                                 {
2411                                 BIO_printf(bio_err,"TIMEOUT occurred\n");
2412                                 }
2413
2414                         if (i <= 0) continue;
2415                         if (FD_ISSET(fileno(stdin),&readfds))
2416                                 read_from_terminal = 1;
2417 #endif
2418                         if (FD_ISSET(s,&readfds))
2419                                 read_from_sslcon = 1;
2420                         }
2421                 if (read_from_terminal)
2422                         {
2423                         if (s_crlf)
2424                                 {
2425                                 int j, lf_num;
2426
2427                                 i=raw_read_stdin(buf, bufsize/2);
2428                                 lf_num = 0;
2429                                 /* both loops are skipped when i <= 0 */
2430                                 for (j = 0; j < i; j++)
2431                                         if (buf[j] == '\n')
2432                                                 lf_num++;
2433                                 for (j = i-1; j >= 0; j--)
2434                                         {
2435                                         buf[j+lf_num] = buf[j];
2436                                         if (buf[j] == '\n')
2437                                                 {
2438                                                 lf_num--;
2439                                                 i++;
2440                                                 buf[j+lf_num] = '\r';
2441                                                 }
2442                                         }
2443                                 assert(lf_num == 0);
2444                                 }
2445                         else
2446                                 i=raw_read_stdin(buf,bufsize);
2447                         if (!s_quiet && !s_brief)
2448                                 {
2449                                 if ((i <= 0) || (buf[0] == 'Q'))
2450                                         {
2451                                         BIO_printf(bio_s_out,"DONE\n");
2452                                         SHUTDOWN(s);
2453                                         close_accept_socket();
2454                                         ret= -11;
2455                                         goto err;
2456                                         }
2457                                 if ((i <= 0) || (buf[0] == 'q'))
2458                                         {
2459                                         BIO_printf(bio_s_out,"DONE\n");
2460                                         if (SSL_version(con) != DTLS1_VERSION)
2461                         SHUTDOWN(s);
2462         /*                              close_accept_socket();
2463                                         ret= -11;*/
2464                                         goto err;
2465                                         }
2466
2467 #ifndef OPENSSL_NO_HEARTBEATS
2468                                 if ((buf[0] == 'B') &&
2469                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2470                                         {
2471                                         BIO_printf(bio_err,"HEARTBEATING\n");
2472                                         SSL_heartbeat(con);
2473                                         i=0;
2474                                         continue;
2475                                         }
2476 #endif
2477                                 if ((buf[0] == 'r') && 
2478                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2479                                         {
2480                                         SSL_renegotiate(con);
2481                                         i=SSL_do_handshake(con);
2482                                         printf("SSL_do_handshake -> %d\n",i);
2483                                         i=0; /*13; */
2484                                         continue;
2485                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2486                                         }
2487                                 if ((buf[0] == 'R') &&
2488                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2489                                         {
2490                                         SSL_set_verify(con,
2491                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2492                                         SSL_renegotiate(con);
2493                                         i=SSL_do_handshake(con);
2494                                         printf("SSL_do_handshake -> %d\n",i);
2495                                         i=0; /* 13; */
2496                                         continue;
2497                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2498                                         }
2499                                 if (buf[0] == 'P')
2500                                         {
2501                                         static const char *str="Lets print some clear text\n";
2502                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2503                                         }
2504                                 if (buf[0] == 'S')
2505                                         {
2506                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2507                                         }
2508                                 }
2509 #ifdef CHARSET_EBCDIC
2510                         ebcdic2ascii(buf,buf,i);
2511 #endif
2512                         l=k=0;
2513                         for (;;)
2514                                 {
2515                                 /* should do a select for the write */
2516 #ifdef RENEG
2517 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2518 #endif
2519                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2520 #ifndef OPENSSL_NO_SRP
2521                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2522                                         {
2523                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2524                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2525                                         if (srp_callback_parm.user) 
2526                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2527                                         else 
2528                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2529                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2530                                         }
2531 #endif
2532                                 switch (SSL_get_error(con,k))
2533                                         {
2534                                 case SSL_ERROR_NONE:
2535                                         break;
2536                                 case SSL_ERROR_WANT_WRITE:
2537                                 case SSL_ERROR_WANT_READ:
2538                                 case SSL_ERROR_WANT_X509_LOOKUP:
2539                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2540                                         break;
2541                                 case SSL_ERROR_SYSCALL:
2542                                 case SSL_ERROR_SSL:
2543                                         BIO_printf(bio_s_out,"ERROR\n");
2544                                         ERR_print_errors(bio_err);
2545                                         ret=1;
2546                                         goto err;
2547                                         /* break; */
2548                                 case SSL_ERROR_ZERO_RETURN:
2549                                         BIO_printf(bio_s_out,"DONE\n");
2550                                         ret=1;
2551                                         goto err;
2552                                         }
2553                                 l+=k;
2554                                 i-=k;
2555                                 if (i <= 0) break;
2556                                 }
2557                         }
2558                 if (read_from_sslcon)
2559                         {
2560                         if (!SSL_is_init_finished(con))
2561                                 {
2562                                 i=init_ssl_connection(con);
2563                                 
2564                                 if (i < 0)
2565                                         {
2566                                         ret=0;
2567                                         goto err;
2568                                         }
2569                                 else if (i == 0)
2570                                         {
2571                                         ret=1;
2572                                         goto err;
2573                                         }
2574                                 }
2575                         else
2576                                 {
2577 again:  
2578                                 i=SSL_read(con,(char *)buf,bufsize);
2579 #ifndef OPENSSL_NO_SRP
2580                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2581                                         {
2582                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2583                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2584                                         if (srp_callback_parm.user) 
2585                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2586                                         else 
2587                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2588                                         i=SSL_read(con,(char *)buf,bufsize);
2589                                         }
2590 #endif
2591                                 switch (SSL_get_error(con,i))
2592                                         {
2593                                 case SSL_ERROR_NONE:
2594 #ifdef CHARSET_EBCDIC
2595                                         ascii2ebcdic(buf,buf,i);
2596 #endif
2597                                         raw_write_stdout(buf,
2598                                                 (unsigned int)i);
2599                                         if (SSL_pending(con)) goto again;
2600                                         break;
2601                                 case SSL_ERROR_WANT_WRITE:
2602                                 case SSL_ERROR_WANT_READ:
2603                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2604                                         break;
2605                                 case SSL_ERROR_SYSCALL:
2606                                 case SSL_ERROR_SSL:
2607                                         BIO_printf(bio_s_out,"ERROR\n");
2608                                         ERR_print_errors(bio_err);
2609                                         ret=1;
2610                                         goto err;
2611                                 case SSL_ERROR_ZERO_RETURN:
2612                                         BIO_printf(bio_s_out,"DONE\n");
2613                                         ret=1;
2614                                         goto err;
2615                                         }
2616                                 }
2617                         }
2618                 }
2619 err:
2620         if (con != NULL)
2621                 {
2622                 BIO_printf(bio_s_out,"shutting down SSL\n");
2623 #if 1
2624                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2625 #else
2626                 SSL_shutdown(con);
2627 #endif
2628                 SSL_free(con);
2629                 }
2630         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2631         if (buf != NULL)
2632                 {
2633                 OPENSSL_cleanse(buf,bufsize);
2634                 OPENSSL_free(buf);
2635                 }
2636         if (ret >= 0)
2637                 BIO_printf(bio_s_out,"ACCEPT\n");
2638         return(ret);
2639         }
2640
2641 static void close_accept_socket(void)
2642         {
2643         BIO_printf(bio_err,"shutdown accept socket\n");
2644         if (accept_socket >= 0)
2645                 {
2646                 SHUTDOWN2(accept_socket);
2647                 }
2648         }
2649
2650 static int init_ssl_connection(SSL *con)
2651         {
2652         int i;
2653         const char *str;
2654         X509 *peer;
2655         long verify_error;
2656         MS_STATIC char buf[BUFSIZ];
2657 #ifndef OPENSSL_NO_KRB5
2658         char *client_princ;
2659 #endif
2660 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2661         const unsigned char *next_proto_neg;
2662         unsigned next_proto_neg_len;
2663 #endif
2664         unsigned char *exportedkeymat;
2665
2666
2667         i=SSL_accept(con);
2668 #ifdef CERT_CB_TEST_RETRY
2669         {
2670         while (i <= 0 && SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP && SSL_state(con) == SSL3_ST_SR_CLNT_HELLO_C) 
2671                 {
2672                 fprintf(stderr, "LOOKUP from certificate callback during accept\n");
2673                 i=SSL_accept(con);
2674                 }
2675         }
2676 #endif
2677 #ifndef OPENSSL_NO_SRP
2678         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2679                 {
2680                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2681                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2682                         if (srp_callback_parm.user) 
2683                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2684                         else 
2685                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2686                         i=SSL_accept(con);
2687                 }
2688 #endif
2689
2690         if (i <= 0)
2691                 {
2692                 if (BIO_sock_should_retry(i))
2693                         {
2694                         BIO_printf(bio_s_out,"DELAY\n");
2695                         return(1);
2696                         }
2697
2698                 BIO_printf(bio_err,"ERROR\n");
2699                 verify_error=SSL_get_verify_result(con);
2700                 if (verify_error != X509_V_OK)
2701                         {
2702                         BIO_printf(bio_err,"verify error:%s\n",
2703                                 X509_verify_cert_error_string(verify_error));
2704                         }
2705                 /* Always print any error messages */
2706                 ERR_print_errors(bio_err);
2707                 return(0);
2708                 }
2709
2710         if (s_brief)
2711                 print_ssl_summary(bio_err, con);
2712
2713         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2714
2715         peer=SSL_get_peer_certificate(con);
2716         if (peer != NULL)
2717                 {
2718                 BIO_printf(bio_s_out,"Client certificate\n");
2719                 PEM_write_bio_X509(bio_s_out,peer);
2720                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2721                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2722                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2723                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2724                 X509_free(peer);
2725                 }
2726
2727         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2728                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2729         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2730         ssl_print_sigalgs(bio_s_out, con);
2731 #ifndef OPENSSL_NO_EC
2732         ssl_print_point_formats(bio_s_out, con);
2733         ssl_print_curves(bio_s_out, con, 0);
2734 #endif
2735         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2736
2737 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2738         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2739         if (next_proto_neg)
2740                 {
2741                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2742                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2743                 BIO_printf(bio_s_out, "\n");
2744                 }
2745 #endif
2746         {
2747         SRTP_PROTECTION_PROFILE *srtp_profile
2748           = SSL_get_selected_srtp_profile(con);
2749
2750         if(srtp_profile)
2751                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2752                            srtp_profile->name);
2753         }
2754         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2755         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2756                 TLS1_FLAGS_TLS_PADDING_BUG)
2757                 BIO_printf(bio_s_out,
2758                            "Peer has incorrect TLSv1 block padding\n");
2759 #ifndef OPENSSL_NO_KRB5
2760         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2761         if (client_princ != NULL)
2762                 {
2763                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2764                                                                 client_princ);
2765                 }
2766 #endif /* OPENSSL_NO_KRB5 */
2767         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2768                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2769         if (keymatexportlabel != NULL)
2770                 {
2771                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2772                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2773                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2774                            keymatexportlen);
2775                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2776                 if (exportedkeymat != NULL)
2777                         {
2778                         if (!SSL_export_keying_material(con, exportedkeymat,
2779                                                         keymatexportlen,
2780                                                         keymatexportlabel,
2781                                                         strlen(keymatexportlabel),
2782                                                         NULL, 0, 0))
2783                                 {
2784                                 BIO_printf(bio_s_out, "    Error\n");
2785                                 }
2786                         else
2787                                 {
2788                                 BIO_printf(bio_s_out, "    Keying material: ");
2789                                 for (i=0; i<keymatexportlen; i++)
2790                                         BIO_printf(bio_s_out, "%02X",
2791                                                    exportedkeymat[i]);
2792                                 BIO_printf(bio_s_out, "\n");
2793                                 }
2794                         OPENSSL_free(exportedkeymat);
2795                         }
2796                 }
2797
2798         return(1);
2799         }
2800
2801 #ifndef OPENSSL_NO_DH
2802 static DH *load_dh_param(const char *dhfile)
2803         {
2804         DH *ret=NULL;
2805         BIO *bio;
2806
2807         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2808                 goto err;
2809         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2810 err:
2811         if (bio != NULL) BIO_free(bio);
2812         return(ret);
2813         }
2814 #endif
2815
2816 #if 0
2817 static int load_CA(SSL_CTX *ctx, char *file)
2818         {
2819         FILE *in;
2820         X509 *x=NULL;
2821
2822         if ((in=fopen(file,"r")) == NULL)
2823                 return(0);
2824
2825         for (;;)
2826                 {
2827                 if (PEM_read_X509(in,&x,NULL) == NULL)
2828                         break;
2829                 SSL_CTX_add_client_CA(ctx,x);
2830                 }
2831         if (x != NULL) X509_free(x);
2832         fclose(in);
2833         return(1);
2834         }
2835 #endif
2836
2837 static int www_body(char *hostname, int s, int stype, unsigned char *context)
2838         {
2839         char *buf=NULL;
2840         int ret=1;
2841         int i,j,k,dot;
2842         SSL *con;
2843         const SSL_CIPHER *c;
2844         BIO *io,*ssl_bio,*sbio;
2845 #ifndef OPENSSL_NO_KRB5
2846         KSSL_CTX *kctx;
2847 #endif
2848
2849         buf=OPENSSL_malloc(bufsize);
2850         if (buf == NULL) return(0);
2851         io=BIO_new(BIO_f_buffer());
2852         ssl_bio=BIO_new(BIO_f_ssl());
2853         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2854
2855 #ifdef FIONBIO  
2856         if (s_nbio)
2857                 {
2858                 unsigned long sl=1;
2859
2860                 if (!s_quiet)
2861                         BIO_printf(bio_err,"turning on non blocking io\n");
2862                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2863                         ERR_print_errors(bio_err);
2864                 }
2865 #endif
2866
2867         /* lets make the output buffer a reasonable size */
2868         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2869
2870         if ((con=SSL_new(ctx)) == NULL) goto err;
2871 #ifndef OPENSSL_NO_TLSEXT
2872                 if (s_tlsextdebug)
2873                         {
2874                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2875                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2876                         }
2877 #endif
2878 #ifndef OPENSSL_NO_KRB5
2879         if ((kctx = kssl_ctx_new()) != NULL)
2880                 {
2881                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2882                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2883                 }
2884 #endif  /* OPENSSL_NO_KRB5 */
2885         if(context) SSL_set_session_id_context(con, context,
2886                                                strlen((char *)context));
2887
2888         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2889         if (s_nbio_test)
2890                 {
2891                 BIO *test;
2892
2893                 test=BIO_new(BIO_f_nbio_test());
2894                 sbio=BIO_push(test,sbio);
2895                 }
2896         SSL_set_bio(con,sbio,sbio);
2897         SSL_set_accept_state(con);
2898
2899         /* SSL_set_fd(con,s); */
2900         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2901         BIO_push(io,ssl_bio);
2902 #ifdef CHARSET_EBCDIC
2903         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2904 #endif
2905
2906         if (s_debug)
2907                 {
2908                 SSL_set_debug(con, 1);
2909                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2910                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2911                 }
2912         if (s_msg)
2913                 {
2914 #ifndef OPENSSL_NO_SSL_TRACE
2915                 if (s_msg == 2)
2916                         SSL_set_msg_callback(con, SSL_trace);
2917                 else
2918 #endif
2919                         SSL_set_msg_callback(con, msg_cb);
2920                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2921                 }
2922
2923         for (;;)
2924                 {
2925                 if (hack)
2926                         {
2927                         i=SSL_accept(con);
2928 #ifndef OPENSSL_NO_SRP
2929                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2930                 {
2931                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2932                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2933                         if (srp_callback_parm.user) 
2934                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2935                         else 
2936                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2937                         i=SSL_accept(con);
2938                 }
2939 #endif
2940                         switch (SSL_get_error(con,i))
2941                                 {
2942                         case SSL_ERROR_NONE:
2943                                 break;
2944                         case SSL_ERROR_WANT_WRITE:
2945                         case SSL_ERROR_WANT_READ:
2946                         case SSL_ERROR_WANT_X509_LOOKUP:
2947                                 continue;
2948                         case SSL_ERROR_SYSCALL:
2949                         case SSL_ERROR_SSL:
2950                         case SSL_ERROR_ZERO_RETURN:
2951                                 ret=1;
2952                                 goto err;
2953                                 /* break; */
2954                                 }
2955
2956                         SSL_renegotiate(con);
2957                         SSL_write(con,NULL,0);
2958                         }
2959
2960                 i=BIO_gets(io,buf,bufsize-1);
2961                 if (i < 0) /* error */
2962                         {
2963                         if (!BIO_should_retry(io))
2964                                 {
2965                                 if (!s_quiet)
2966                                         ERR_print_errors(bio_err);
2967                                 goto err;
2968                                 }
2969                         else
2970                                 {
2971                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2972 #if defined(OPENSSL_SYS_NETWARE)
2973             delay(1000);
2974 #elif !defined(OPENSSL_SYS_MSDOS)
2975                                 sleep(1);
2976 #endif
2977                                 continue;
2978                                 }
2979                         }
2980                 else if (i == 0) /* end of input */
2981                         {
2982                         ret=1;
2983                         goto end;
2984                         }
2985
2986                 /* else we have data */
2987                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2988                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2989                         {
2990                         char *p;
2991                         X509 *peer;
2992                         STACK_OF(SSL_CIPHER) *sk;
2993                         static const char *space="                          ";
2994
2995                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
2996                         {
2997                         if (strncmp("GET /renegcert", buf, 14) == 0)
2998                                 SSL_set_verify(con,
2999                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
3000                         i=SSL_renegotiate(con);
3001                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
3002                         i=SSL_do_handshake(con);
3003                         if (i <= 0)
3004                                 {
3005                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
3006                                 ERR_print_errors(bio_err);
3007                                 goto err;
3008                                 }
3009                         /* EVIL HACK! */
3010                         SSL_set_state(con, SSL_ST_ACCEPT);
3011                         i=SSL_do_handshake(con);
3012                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
3013                         if (i <= 0)
3014                                 {
3015                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
3016                                 ERR_print_errors(bio_err);
3017                                 goto err;
3018                                 }
3019                         }
3020
3021                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3022                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
3023                         BIO_puts(io,"<pre>\n");
3024 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
3025                         BIO_puts(io,"\n");
3026                         for (i=0; i<local_argc; i++)
3027                                 {
3028                                 BIO_puts(io,local_argv[i]);
3029                                 BIO_write(io," ",1);
3030                                 }
3031                         BIO_puts(io,"\n");
3032
3033                         BIO_printf(io,
3034                                 "Secure Renegotiation IS%s supported\n",
3035                                 SSL_get_secure_renegotiation_support(con) ?
3036                                                         "" : " NOT");
3037
3038                         /* The following is evil and should not really
3039                          * be done */
3040                         BIO_printf(io,"Ciphers supported in s_server binary\n");
3041                         sk=SSL_get_ciphers(con);
3042                         j=sk_SSL_CIPHER_num(sk);
3043                         for (i=0; i<j; i++)
3044                                 {
3045                                 c=sk_SSL_CIPHER_value(sk,i);
3046                                 BIO_printf(io,"%-11s:%-25s",
3047                                         SSL_CIPHER_get_version(c),
3048                                         SSL_CIPHER_get_name(c));
3049                                 if ((((i+1)%2) == 0) && (i+1 != j))
3050                                         BIO_puts(io,"\n");
3051                                 }
3052                         BIO_puts(io,"\n");
3053                         p=SSL_get_shared_ciphers(con,buf,bufsize);
3054                         if (p != NULL)
3055                                 {
3056                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
3057                                 j=i=0;
3058                                 while (*p)
3059                                         {
3060                                         if (*p == ':')
3061                                                 {
3062                                                 BIO_write(io,space,26-j);
3063                                                 i++;
3064                                                 j=0;
3065                                                 BIO_write(io,((i%3)?" ":"\n"),1);
3066                                                 }
3067                                         else
3068                                                 {
3069                                                 BIO_write(io,p,1);
3070                                                 j++;
3071                                                 }
3072                                         p++;
3073                                         }
3074                                 BIO_puts(io,"\n");
3075                                 }
3076                         ssl_print_sigalgs(io, con);
3077 #ifndef OPENSSL_NO_EC
3078                         ssl_print_curves(io, con, 0);
3079 #endif
3080                         BIO_printf(io,(SSL_cache_hit(con)
3081                                 ?"---\nReused, "
3082                                 :"---\nNew, "));
3083                         c=SSL_get_current_cipher(con);
3084                         BIO_printf(io,"%s, Cipher is %s\n",
3085                                 SSL_CIPHER_get_version(c),
3086                                 SSL_CIPHER_get_name(c));
3087                         SSL_SESSION_print(io,SSL_get_session(con));
3088                         BIO_printf(io,"---\n");
3089                         print_stats(io,SSL_get_SSL_CTX(con));
3090                         BIO_printf(io,"---\n");
3091                         peer=SSL_get_peer_certificate(con);
3092                         if (peer != NULL)
3093                                 {
3094                                 BIO_printf(io,"Client certificate\n");
3095                                 X509_print(io,peer);
3096                                 PEM_write_bio_X509(io,peer);
3097                                 }
3098                         else
3099                                 BIO_puts(io,"no client certificate available\n");
3100                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
3101                         break;
3102                         }
3103                 else if ((www == 2 || www == 3)
3104                          && (strncmp("GET /",buf,5) == 0))
3105                         {
3106                         BIO *file;
3107                         char *p,*e;
3108                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
3109
3110                         /* skip the '/' */
3111                         p= &(buf[5]);
3112
3113                         dot = 1;
3114                         for (e=p; *e != '\0'; e++)
3115                                 {
3116                                 if (e[0] == ' ')
3117                                         break;
3118
3119                                 switch (dot)
3120                                         {
3121                                 case 1:
3122                                         dot = (e[0] == '.') ? 2 : 0;
3123                                         break;
3124                                 case 2:
3125                                         dot = (e[0] == '.') ? 3 : 0;
3126                                         break;
3127                                 case 3:
3128                                         dot = (e[0] == '/') ? -1 : 0;
3129                                         break;
3130                                         }
3131                                 if (dot == 0)
3132                                         dot = (e[0] == '/') ? 1 : 0;
3133                                 }
3134                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
3135
3136                         if (*e == '\0')
3137                                 {
3138                                 BIO_puts(io,text);
3139                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
3140                                 break;
3141                                 }
3142                         *e='\0';
3143
3144                         if (dot)
3145                                 {
3146                                 BIO_puts(io,text);
3147                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
3148                                 break;
3149                                 }
3150
3151                         if (*p == '/')
3152                                 {
3153                                 BIO_puts(io,text);
3154                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
3155                                 break;
3156                                 }
3157
3158 #if 0
3159                         /* append if a directory lookup */
3160                         if (e[-1] == '/')
3161                                 strcat(p,"index.html");
3162 #endif
3163
3164                         /* if a directory, do the index thang */
3165                         if (app_isdir(p)>0)
3166                                 {
3167 #if 0 /* must check buffer size */
3168                                 strcat(p,"/index.html");
3169 #else
3170                                 BIO_puts(io,text);
3171                                 BIO_printf(io,"'%s' is a directory\r\n",p);
3172                                 break;
3173 #endif
3174                                 }
3175
3176                         if ((file=BIO_new_file(p,"r")) == NULL)
3177                                 {
3178                                 BIO_puts(io,text);
3179                                 BIO_printf(io,"Error opening '%s'\r\n",p);
3180                                 ERR_print_errors(io);
3181                                 break;
3182                                 }
3183
3184                         if (!s_quiet)
3185                                 BIO_printf(bio_err,"FILE:%s\n",p);
3186
3187                         if (www == 2)
3188                                 {
3189                                 i=strlen(p);
3190                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
3191                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
3192                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
3193                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3194                                 else
3195                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3196                                 }
3197                         /* send the file */
3198                         for (;;)
3199                                 {
3200                                 i=BIO_read(file,buf,bufsize);
3201                                 if (i <= 0) break;
3202
3203 #ifdef RENEG
3204                                 total_bytes+=i;
3205                                 fprintf(stderr,"%d\n",i);
3206                                 if (total_bytes > 3*1024)
3207                                         {
3208                                         total_bytes=0;
3209                                         fprintf(stderr,"RENEGOTIATE\n");
3210                                         SSL_renegotiate(con);
3211                                         }
3212 #endif
3213
3214                                 for (j=0; j<i; )
3215                                         {
3216 #ifdef RENEG
3217 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
3218 #endif
3219                                         k=BIO_write(io,&(buf[j]),i-j);
3220                                         if (k <= 0)
3221                                                 {
3222                                                 if (!BIO_should_retry(io))
3223                                                         goto write_error;
3224                                                 else
3225                                                         {
3226                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
3227                                                         }
3228                                                 }
3229                                         else
3230                                                 {
3231                                                 j+=k;
3232                                                 }
3233                                         }
3234                                 }
3235 write_error:
3236                         BIO_free(file);
3237                         break;
3238                         }
3239                 }
3240
3241         for (;;)
3242                 {
3243                 i=(int)BIO_flush(io);
3244                 if (i <= 0)
3245                         {
3246                         if (!BIO_should_retry(io))
3247                                 break;
3248                         }
3249                 else
3250                         break;
3251                 }
3252 end:
3253 #if 1
3254         /* make sure we re-use sessions */
3255         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3256 #else
3257         /* This kills performance */
3258 /*      SSL_shutdown(con); A shutdown gets sent in the
3259  *      BIO_free_all(io) procession */
3260 #endif
3261
3262 err:
3263
3264         if (ret >= 0)
3265                 BIO_printf(bio_s_out,"ACCEPT\n");
3266
3267         if (buf != NULL) OPENSSL_free(buf);
3268         if (io != NULL) BIO_free_all(io);
3269 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3270         return(ret);
3271         }
3272
3273 static int rev_body(char *hostname, int s, int stype, unsigned char *context)
3274         {
3275         char *buf=NULL;
3276         int i;
3277         int ret=1;
3278         SSL *con;
3279         BIO *io,*ssl_bio,*sbio;
3280 #ifndef OPENSSL_NO_KRB5
3281         KSSL_CTX *kctx;
3282 #endif
3283
3284         buf=OPENSSL_malloc(bufsize);
3285         if (buf == NULL) return(0);
3286         io=BIO_new(BIO_f_buffer());
3287         ssl_bio=BIO_new(BIO_f_ssl());
3288         if ((io == NULL) || (ssl_bio == NULL)) goto err;
3289
3290         /* lets make the output buffer a reasonable size */
3291         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
3292
3293         if ((con=SSL_new(ctx)) == NULL) goto err;
3294 #ifndef OPENSSL_NO_TLSEXT
3295         if (s_tlsextdebug)
3296                 {
3297                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3298                 SSL_set_tlsext_debug_arg(con, bio_s_out);
3299                 }
3300 #endif
3301 #ifndef OPENSSL_NO_KRB5
3302         if ((kctx = kssl_ctx_new()) != NULL)
3303                 {
3304                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
3305                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
3306                 }
3307 #endif  /* OPENSSL_NO_KRB5 */
3308         if(context) SSL_set_session_id_context(con, context,
3309                                                strlen((char *)context));
3310
3311         sbio=BIO_new_socket(s,BIO_NOCLOSE);
3312         SSL_set_bio(con,sbio,sbio);
3313         SSL_set_accept_state(con);
3314
3315         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
3316         BIO_push(io,ssl_bio);
3317 #ifdef CHARSET_EBCDIC
3318         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
3319 #endif
3320
3321         if (s_debug)
3322                 {
3323                 SSL_set_debug(con, 1);
3324                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
3325                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
3326                 }
3327         if (s_msg)
3328                 {
3329 #ifndef OPENSSL_NO_SSL_TRACE
3330                 if (s_msg == 2)
3331                         SSL_set_msg_callback(con, SSL_trace);
3332                 else
3333 #endif
3334                         SSL_set_msg_callback(con, msg_cb);
3335                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3336                 }
3337
3338         for (;;)
3339                 {
3340                 i = BIO_do_handshake(io);
3341                 if (i > 0)
3342                         break;
3343                 if (!BIO_should_retry(io))
3344                         {
3345                         BIO_puts(bio_err, "CONNECTION FAILURE\n");
3346                         ERR_print_errors(bio_err);
3347                         goto end;
3348                         }
3349                 }
3350         BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3351         print_ssl_summary(bio_err, con);
3352
3353         for (;;)
3354                 {
3355                 i=BIO_gets(io,buf,bufsize-1);
3356                 if (i < 0) /* error */
3357                         {
3358                         if (!BIO_should_retry(io))
3359                                 {
3360                                 if (!s_quiet)
3361                                         ERR_print_errors(bio_err);
3362                                 goto err;
3363                                 }
3364                         else
3365                                 {
3366                                 BIO_printf(bio_s_out,"read R BLOCK\n");
3367 #if defined(OPENSSL_SYS_NETWARE)
3368             delay(1000);
3369 #elif !defined(OPENSSL_SYS_MSDOS)
3370                                 sleep(1);
3371 #endif
3372                                 continue;
3373                                 }
3374                         }
3375                 else if (i == 0) /* end of input */
3376                         {
3377                         ret=1;
3378                         BIO_printf(bio_err, "CONNECTION CLOSED\n");
3379                         goto end;
3380                         }
3381                 else
3382                         {
3383                         char *p = buf + i - 1;
3384                         while(i && (*p == '\n' || *p == '\r'))
3385                                 {
3386                                 p--;
3387                                 i--;
3388                                 }
3389                         if (!s_ign_eof && i == 5 && !strncmp(buf, "CLOSE", 5))
3390                                 {
3391                                 ret = 1;
3392                                 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3393                                 goto end;
3394                                 }
3395                         BUF_reverse((unsigned char *)buf, NULL, i);
3396                         buf[i] = '\n';
3397                         BIO_write(io, buf, i + 1);
3398                         for (;;)
3399                                 {
3400                                 i = BIO_flush(io);
3401                                 if (i > 0)
3402                                         break;
3403                                 if (!BIO_should_retry(io))
3404                                         goto end;
3405                                 }
3406                         }
3407                 }
3408 end:
3409         /* make sure we re-use sessions */
3410         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3411
3412 err:
3413
3414         if (buf != NULL) OPENSSL_free(buf);
3415         if (io != NULL) BIO_free_all(io);
3416         return(ret);
3417         }
3418
3419 #ifndef OPENSSL_NO_RSA
3420 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3421         {
3422         BIGNUM *bn = NULL;
3423         static RSA *rsa_tmp=NULL;
3424
3425         if (!rsa_tmp && ((bn = BN_new()) == NULL))
3426                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
3427         if (!rsa_tmp && bn)
3428                 {
3429                 if (!s_quiet)
3430                         {
3431                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
3432                         (void)BIO_flush(bio_err);
3433                         }
3434                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3435                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
3436                         {
3437                         if(rsa_tmp) RSA_free(rsa_tmp);
3438                         rsa_tmp = NULL;
3439                         }
3440                 if (!s_quiet)
3441                         {
3442                         BIO_printf(bio_err,"\n");
3443                         (void)BIO_flush(bio_err);
3444                         }
3445                 BN_free(bn);
3446                 }
3447         return(rsa_tmp);
3448         }
3449 #endif
3450
3451 #define MAX_SESSION_ID_ATTEMPTS 10
3452 static int generate_session_id(const SSL *ssl, unsigned char *id,
3453                                 unsigned int *id_len)
3454         {
3455         unsigned int count = 0;
3456         do      {
3457                 RAND_pseudo_bytes(id, *id_len);
3458                 /* Prefix the session_id with the required prefix. NB: If our
3459                  * prefix is too long, clip it - but there will be worse effects
3460                  * anyway, eg. the server could only possibly create 1 session
3461                  * ID (ie. the prefix!) so all future session negotiations will
3462                  * fail due to conflicts. */
3463                 memcpy(id, session_id_prefix,
3464                         (strlen(session_id_prefix) < *id_len) ?
3465                         strlen(session_id_prefix) : *id_len);
3466                 }
3467         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3468                 (++count < MAX_SESSION_ID_ATTEMPTS));
3469         if(count >= MAX_SESSION_ID_ATTEMPTS)
3470                 return 0;
3471         return 1;
3472         }
3473
3474 /* By default s_server uses an in-memory cache which caches SSL_SESSION
3475  * structures without any serialisation. This hides some bugs which only
3476  * become apparent in deployed servers. By implementing a basic external
3477  * session cache some issues can be debugged using s_server.
3478  */
3479
3480 typedef struct simple_ssl_session_st
3481         {
3482         unsigned char *id;
3483         unsigned int idlen;
3484         unsigned char *der;
3485         int derlen;
3486         struct simple_ssl_session_st *next;
3487         } simple_ssl_session;
3488
3489 static simple_ssl_session *first = NULL;
3490
3491 static int add_session(SSL *ssl, SSL_SESSION *session)
3492         {
3493         simple_ssl_session *sess;
3494         unsigned char *p;
3495
3496         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3497
3498         SSL_SESSION_get_id(session, &sess->idlen);
3499         sess->derlen = i2d_SSL_SESSION(session, NULL);
3500
3501         sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3502
3503         sess->der = OPENSSL_malloc(sess->derlen);
3504         p = sess->der;
3505         i2d_SSL_SESSION(session, &p);
3506
3507         sess->next = first;
3508         first = sess;
3509         BIO_printf(bio_err, "New session added to external cache\n");
3510         return 0;
3511         }
3512
3513 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3514                                         int *do_copy)
3515         {
3516         simple_ssl_session *sess;
3517         *do_copy = 0;
3518         for (sess = first; sess; sess = sess->next)
3519                 {
3520                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3521                         {
3522                         const unsigned char *p = sess->der;
3523                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3524                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3525                         }
3526                 }
3527         BIO_printf(bio_err, "Lookup session: cache miss\n");
3528         return NULL;
3529         }
3530
3531 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3532         {
3533         simple_ssl_session *sess, *prev = NULL;
3534         const unsigned char *id;
3535         unsigned int idlen;
3536         id = SSL_SESSION_get_id(session, &idlen);       
3537         for (sess = first; sess; sess = sess->next)
3538                 {
3539                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
3540                         {
3541                         if(prev)
3542                                 prev->next = sess->next;
3543                         else
3544                                 first = sess->next;
3545                         OPENSSL_free(sess->id);
3546                         OPENSSL_free(sess->der);
3547                         OPENSSL_free(sess);
3548                         return;
3549                         }
3550                 prev = sess;
3551                 }
3552         }
3553
3554 static void init_session_cache_ctx(SSL_CTX *sctx)
3555         {
3556         SSL_CTX_set_session_cache_mode(sctx,
3557                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
3558         SSL_CTX_sess_set_new_cb(sctx, add_session);
3559         SSL_CTX_sess_set_get_cb(sctx, get_session);
3560         SSL_CTX_sess_set_remove_cb(sctx, del_session);
3561         }
3562
3563 static void free_sessions(void)
3564         {
3565         simple_ssl_session *sess, *tsess;
3566         for (sess = first; sess;)
3567                 {
3568                 OPENSSL_free(sess->id);
3569                 OPENSSL_free(sess->der);
3570                 tsess = sess;
3571                 sess = sess->next;
3572                 OPENSSL_free(tsess);
3573                 }
3574         first = NULL;
3575         }