Provisional DTLS 1.2 support.
[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 static DH *get_dh512(void);
222 #endif
223
224 #ifdef MONOLITH
225 static void s_server_init(void);
226 #endif
227
228 #ifndef OPENSSL_NO_DH
229 static unsigned char dh512_p[]={
230         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
231         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
232         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
233         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
234         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
235         0x47,0x74,0xE8,0x33,
236         };
237 static unsigned char dh512_g[]={
238         0x02,
239         };
240
241 static DH *get_dh512(void)
242         {
243         DH *dh=NULL;
244
245         if ((dh=DH_new()) == NULL) return(NULL);
246         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
247         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
248         if ((dh->p == NULL) || (dh->g == NULL))
249                 return(NULL);
250         return(dh);
251         }
252 #endif
253
254
255 /* static int load_CA(SSL_CTX *ctx, char *file);*/
256
257 #undef BUFSIZZ
258 #define BUFSIZZ 16*1024
259 static int bufsize=BUFSIZZ;
260 static int accept_socket= -1;
261
262 #define TEST_CERT       "server.pem"
263 #ifndef OPENSSL_NO_TLSEXT
264 #define TEST_CERT2      "server2.pem"
265 #endif
266 #undef PROG
267 #define PROG            s_server_main
268
269 extern int verify_depth, verify_return_error, verify_quiet;
270
271 static int s_server_verify=SSL_VERIFY_NONE;
272 static int s_server_session_id_context = 1; /* anything will do */
273 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL, *s_chain_file=NULL;
274 #ifndef OPENSSL_NO_TLSEXT
275 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
276 #endif
277 static char *s_dcert_file=NULL,*s_dkey_file=NULL, *s_dchain_file=NULL;
278 #ifdef FIONBIO
279 static int s_nbio=0;
280 #endif
281 static int s_nbio_test=0;
282 int s_crlf=0;
283 static SSL_CTX *ctx=NULL;
284 #ifndef OPENSSL_NO_TLSEXT
285 static SSL_CTX *ctx2=NULL;
286 #endif
287 static int www=0;
288
289 static BIO *bio_s_out=NULL;
290 static BIO *bio_s_msg = NULL;
291 static int s_debug=0;
292 #ifndef OPENSSL_NO_TLSEXT
293 static int s_tlsextdebug=0;
294 static int s_tlsextstatus=0;
295 static int cert_status_cb(SSL *s, void *arg);
296 #endif
297 static int no_resume_ephemeral = 0;
298 static int s_msg=0;
299 static int s_quiet=0;
300 static int s_ign_eof=0;
301 static int s_brief=0;
302
303 static char *keymatexportlabel=NULL;
304 static int keymatexportlen=20;
305
306 static int hack=0;
307 #ifndef OPENSSL_NO_ENGINE
308 static char *engine_id=NULL;
309 #endif
310 static const char *session_id_prefix=NULL;
311
312 static int enable_timeouts = 0;
313 static long socket_mtu;
314 #ifndef OPENSSL_NO_DTLS1
315 static int cert_chain = 0;
316 #endif
317
318 #ifndef OPENSSL_NO_TLSEXT
319 static BIO *authz_in = NULL;
320 static const char *s_authz_file = NULL;
321 #endif
322
323 #ifndef OPENSSL_NO_PSK
324 static char *psk_identity="Client_identity";
325 char *psk_key=NULL; /* by default PSK is not used */
326
327 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
328         unsigned char *psk, unsigned int max_psk_len)
329         {
330         unsigned int psk_len = 0;
331         int ret;
332         BIGNUM *bn = NULL;
333
334         if (s_debug)
335                 BIO_printf(bio_s_out,"psk_server_cb\n");
336         if (!identity)
337                 {
338                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
339                 goto out_err;
340                 }
341         if (s_debug)
342                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
343                         identity ? (int)strlen(identity) : 0, identity);
344
345         /* here we could lookup the given identity e.g. from a database */
346         if (strcmp(identity, psk_identity) != 0)
347                 {
348                 BIO_printf(bio_s_out, "PSK error: client identity not found"
349                            " (got '%s' expected '%s')\n", identity,
350                            psk_identity);
351                 goto out_err;
352                 }
353         if (s_debug)
354                 BIO_printf(bio_s_out, "PSK client identity found\n");
355
356         /* convert the PSK key to binary */
357         ret = BN_hex2bn(&bn, psk_key);
358         if (!ret)
359                 {
360                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
361                 if (bn)
362                         BN_free(bn);
363                 return 0;
364                 }
365         if (BN_num_bytes(bn) > (int)max_psk_len)
366                 {
367                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
368                         max_psk_len, BN_num_bytes(bn));
369                 BN_free(bn);
370                 return 0;
371                 }
372
373         ret = BN_bn2bin(bn, psk);
374         BN_free(bn);
375
376         if (ret < 0)
377                 goto out_err;
378         psk_len = (unsigned int)ret;
379
380         if (s_debug)
381                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
382         return psk_len;
383  out_err:
384         if (s_debug)
385                 BIO_printf(bio_err, "Error in PSK server callback\n");
386         return 0;
387         }
388 #endif
389
390 #ifndef OPENSSL_NO_SRP
391 /* This is a context that we pass to callbacks */
392 typedef struct srpsrvparm_st
393         {
394         char *login;
395         SRP_VBASE *vb;
396         SRP_user_pwd *user;
397         } srpsrvparm;
398
399 /* This callback pretends to require some asynchronous logic in order to obtain
400    a verifier. When the callback is called for a new connection we return
401    with a negative value. This will provoke the accept etc to return with
402    an LOOKUP_X509. The main logic of the reinvokes the suspended call 
403    (which would normally occur after a worker has finished) and we
404    set the user parameters. 
405 */
406 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
407         {
408         srpsrvparm *p = (srpsrvparm *)arg;
409         if (p->login == NULL && p->user == NULL )
410                 {
411                 p->login = SSL_get_srp_username(s);
412                 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
413                 return (-1) ;
414                 }
415
416         if (p->user == NULL)
417                 {
418                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
419                 return SSL3_AL_FATAL;
420                 }
421         if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
422                                      p->user->info) < 0)
423                 {
424                 *ad = SSL_AD_INTERNAL_ERROR;
425                 return SSL3_AL_FATAL;
426                 }
427         BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
428         /* need to check whether there are memory leaks */
429         p->user = NULL;
430         p->login = NULL;
431         return SSL_ERROR_NONE;
432         }
433
434 #endif
435
436 #ifdef MONOLITH
437 static void s_server_init(void)
438         {
439         accept_socket=-1;
440         s_server_verify=SSL_VERIFY_NONE;
441         s_dcert_file=NULL;
442         s_dkey_file=NULL;
443         s_dchain_file=NULL;
444         s_cert_file=TEST_CERT;
445         s_key_file=NULL;
446         s_chain_file=NULL;
447 #ifndef OPENSSL_NO_TLSEXT
448         s_cert_file2=TEST_CERT2;
449         s_key_file2=NULL;
450         ctx2=NULL;
451 #endif
452 #ifdef FIONBIO
453         s_nbio=0;
454 #endif
455         s_nbio_test=0;
456         ctx=NULL;
457         www=0;
458
459         bio_s_out=NULL;
460         s_debug=0;
461         s_msg=0;
462         s_quiet=0;
463         s_brief=0;
464         hack=0;
465 #ifndef OPENSSL_NO_ENGINE
466         engine_id=NULL;
467 #endif
468         }
469 #endif
470
471 static void sv_usage(void)
472         {
473         BIO_printf(bio_err,"usage: s_server [args ...]\n");
474         BIO_printf(bio_err,"\n");
475         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
476         BIO_printf(bio_err," -context arg  - set session ID context\n");
477         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
478         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
479         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
480         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
481         BIO_printf(bio_err," -authz arg   -  binary authz file for certificate\n");
482         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
483                            "                 The CRL(s) are appended to the certificate file\n");
484         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
485                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
486                            "                 the certificate file.\n");
487         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
488         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
489         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
490         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
491         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
492         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
493         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
494         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
495         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
496         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
497         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
498         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
499 #ifndef OPENSSL_NO_ECDH
500         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
501                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
502                            "                 (default is nistp256).\n");
503 #endif
504 #ifdef FIONBIO
505         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
506 #endif
507         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
508         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
509         BIO_printf(bio_err," -debug        - Print more output\n");
510         BIO_printf(bio_err," -msg          - Show protocol messages\n");
511         BIO_printf(bio_err," -state        - Print the SSL states\n");
512         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
513         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
514         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
515         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
516         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
517         BIO_printf(bio_err," -quiet        - No server output\n");
518         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
519 #ifndef OPENSSL_NO_PSK
520         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
521         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
522 # ifndef OPENSSL_NO_JPAKE
523         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
524 # endif
525 #endif
526 #ifndef OPENSSL_NO_SRP
527         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
528         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
529 #endif
530         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
531         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
532         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
533         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
534         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
535         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
536         BIO_printf(bio_err," -dtls1_2      - Just talk DTLSv1.2\n");
537         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
538         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
539         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
540         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
541         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
542         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
543         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
544         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
545 #ifndef OPENSSL_NO_DH
546         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
547 #endif
548 #ifndef OPENSSL_NO_ECDH
549         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
550 #endif
551         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
552         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
553         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
554         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
555         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
556         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
557 #ifndef OPENSSL_NO_ENGINE
558         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
559 #endif
560         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
561         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
562 #ifndef OPENSSL_NO_TLSEXT
563         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
564         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
565         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
566         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
567         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
568         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
569         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
570         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
571         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
572 # ifndef OPENSSL_NO_NEXTPROTONEG
573         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
574 # endif
575         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
576 #endif
577         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
578         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
579         }
580
581 static int local_argc=0;
582 static char **local_argv;
583
584 #ifdef CHARSET_EBCDIC
585 static int ebcdic_new(BIO *bi);
586 static int ebcdic_free(BIO *a);
587 static int ebcdic_read(BIO *b, char *out, int outl);
588 static int ebcdic_write(BIO *b, const char *in, int inl);
589 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
590 static int ebcdic_gets(BIO *bp, char *buf, int size);
591 static int ebcdic_puts(BIO *bp, const char *str);
592
593 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
594 static BIO_METHOD methods_ebcdic=
595         {
596         BIO_TYPE_EBCDIC_FILTER,
597         "EBCDIC/ASCII filter",
598         ebcdic_write,
599         ebcdic_read,
600         ebcdic_puts,
601         ebcdic_gets,
602         ebcdic_ctrl,
603         ebcdic_new,
604         ebcdic_free,
605         };
606
607 typedef struct
608 {
609         size_t  alloced;
610         char    buff[1];
611 } EBCDIC_OUTBUFF;
612
613 BIO_METHOD *BIO_f_ebcdic_filter()
614 {
615         return(&methods_ebcdic);
616 }
617
618 static int ebcdic_new(BIO *bi)
619 {
620         EBCDIC_OUTBUFF *wbuf;
621
622         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
623         wbuf->alloced = 1024;
624         wbuf->buff[0] = '\0';
625
626         bi->ptr=(char *)wbuf;
627         bi->init=1;
628         bi->flags=0;
629         return(1);
630 }
631
632 static int ebcdic_free(BIO *a)
633 {
634         if (a == NULL) return(0);
635         if (a->ptr != NULL)
636                 OPENSSL_free(a->ptr);
637         a->ptr=NULL;
638         a->init=0;
639         a->flags=0;
640         return(1);
641 }
642         
643 static int ebcdic_read(BIO *b, char *out, int outl)
644 {
645         int ret=0;
646
647         if (out == NULL || outl == 0) return(0);
648         if (b->next_bio == NULL) return(0);
649
650         ret=BIO_read(b->next_bio,out,outl);
651         if (ret > 0)
652                 ascii2ebcdic(out,out,ret);
653         return(ret);
654 }
655
656 static int ebcdic_write(BIO *b, const char *in, int inl)
657 {
658         EBCDIC_OUTBUFF *wbuf;
659         int ret=0;
660         int num;
661         unsigned char n;
662
663         if ((in == NULL) || (inl <= 0)) return(0);
664         if (b->next_bio == NULL) return(0);
665
666         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
667
668         if (inl > (num = wbuf->alloced))
669         {
670                 num = num + num;  /* double the size */
671                 if (num < inl)
672                         num = inl;
673                 OPENSSL_free(wbuf);
674                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
675
676                 wbuf->alloced = num;
677                 wbuf->buff[0] = '\0';
678
679                 b->ptr=(char *)wbuf;
680         }
681
682         ebcdic2ascii(wbuf->buff, in, inl);
683
684         ret=BIO_write(b->next_bio, wbuf->buff, inl);
685
686         return(ret);
687 }
688
689 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
690 {
691         long ret;
692
693         if (b->next_bio == NULL) return(0);
694         switch (cmd)
695         {
696         case BIO_CTRL_DUP:
697                 ret=0L;
698                 break;
699         default:
700                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
701                 break;
702         }
703         return(ret);
704 }
705
706 static int ebcdic_gets(BIO *bp, char *buf, int size)
707 {
708         int i, ret=0;
709         if (bp->next_bio == NULL) return(0);
710 /*      return(BIO_gets(bp->next_bio,buf,size));*/
711         for (i=0; i<size-1; ++i)
712         {
713                 ret = ebcdic_read(bp,&buf[i],1);
714                 if (ret <= 0)
715                         break;
716                 else if (buf[i] == '\n')
717                 {
718                         ++i;
719                         break;
720                 }
721         }
722         if (i < size)
723                 buf[i] = '\0';
724         return (ret < 0 && i == 0) ? ret : i;
725 }
726
727 static int ebcdic_puts(BIO *bp, const char *str)
728 {
729         if (bp->next_bio == NULL) return(0);
730         return ebcdic_write(bp, str, strlen(str));
731 }
732 #endif
733
734 #ifndef OPENSSL_NO_TLSEXT
735
736 /* This is a context that we pass to callbacks */
737 typedef struct tlsextctx_st {
738    char * servername;
739    BIO * biodebug;
740    int extension_error;
741 } tlsextctx;
742
743
744 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
745         {
746         tlsextctx * p = (tlsextctx *) arg;
747         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
748         if (servername && p->biodebug) 
749                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
750         
751         if (!p->servername)
752                 return SSL_TLSEXT_ERR_NOACK;
753         
754         if (servername)
755                 {
756                 if (strcmp(servername,p->servername)) 
757                         return p->extension_error;
758                 if (ctx2)
759                         {
760                         BIO_printf(p->biodebug,"Switching server context.\n");
761                         SSL_set_SSL_CTX(s,ctx2);
762                         }     
763                 }
764         return SSL_TLSEXT_ERR_OK;
765 }
766
767 /* Structure passed to cert status callback */
768
769 typedef struct tlsextstatusctx_st {
770    /* Default responder to use */
771    char *host, *path, *port;
772    int use_ssl;
773    int timeout;
774    BIO *err;
775    int verbose;
776 } tlsextstatusctx;
777
778 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
779
780 /* Certificate Status callback. This is called when a client includes a
781  * certificate status request extension.
782  *
783  * This is a simplified version. It examines certificates each time and
784  * makes one OCSP responder query for each request.
785  *
786  * A full version would store details such as the OCSP certificate IDs and
787  * minimise the number of OCSP responses by caching them until they were
788  * considered "expired".
789  */
790
791 static int cert_status_cb(SSL *s, void *arg)
792         {
793         tlsextstatusctx *srctx = arg;
794         BIO *err = srctx->err;
795         char *host, *port, *path;
796         int use_ssl;
797         unsigned char *rspder = NULL;
798         int rspderlen;
799         STACK_OF(OPENSSL_STRING) *aia = NULL;
800         X509 *x = NULL;
801         X509_STORE_CTX inctx;
802         X509_OBJECT obj;
803         OCSP_REQUEST *req = NULL;
804         OCSP_RESPONSE *resp = NULL;
805         OCSP_CERTID *id = NULL;
806         STACK_OF(X509_EXTENSION) *exts;
807         int ret = SSL_TLSEXT_ERR_NOACK;
808         int i;
809 #if 0
810 STACK_OF(OCSP_RESPID) *ids;
811 SSL_get_tlsext_status_ids(s, &ids);
812 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
813 #endif
814         if (srctx->verbose)
815                 BIO_puts(err, "cert_status: callback called\n");
816         /* Build up OCSP query from server certificate */
817         x = SSL_get_certificate(s);
818         aia = X509_get1_ocsp(x);
819         if (aia)
820                 {
821                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
822                         &host, &port, &path, &use_ssl))
823                         {
824                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
825                         goto err;
826                         }
827                 if (srctx->verbose)
828                         BIO_printf(err, "cert_status: AIA URL: %s\n",
829                                         sk_OPENSSL_STRING_value(aia, 0));
830                 }
831         else
832                 {
833                 if (!srctx->host)
834                         {
835                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
836                         goto done;
837                         }
838                 host = srctx->host;
839                 path = srctx->path;
840                 port = srctx->port;
841                 use_ssl = srctx->use_ssl;
842                 }
843                 
844         if (!X509_STORE_CTX_init(&inctx,
845                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
846                                 NULL, NULL))
847                 goto err;
848         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
849                                 X509_get_issuer_name(x),&obj) <= 0)
850                 {
851                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
852                 X509_STORE_CTX_cleanup(&inctx);
853                 goto done;
854                 }
855         req = OCSP_REQUEST_new();
856         if (!req)
857                 goto err;
858         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
859         X509_free(obj.data.x509);
860         X509_STORE_CTX_cleanup(&inctx);
861         if (!id)
862                 goto err;
863         if (!OCSP_request_add0_id(req, id))
864                 goto err;
865         id = NULL;
866         /* Add any extensions to the request */
867         SSL_get_tlsext_status_exts(s, &exts);
868         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
869                 {
870                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
871                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
872                         goto err;
873                 }
874         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
875                                         srctx->timeout);
876         if (!resp)
877                 {
878                 BIO_puts(err, "cert_status: error querying responder\n");
879                 goto done;
880                 }
881         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
882         if (rspderlen <= 0)
883                 goto err;
884         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
885         if (srctx->verbose)
886                 {
887                 BIO_puts(err, "cert_status: ocsp response sent:\n");
888                 OCSP_RESPONSE_print(err, resp, 2);
889                 }
890         ret = SSL_TLSEXT_ERR_OK;
891         done:
892         if (ret != SSL_TLSEXT_ERR_OK)
893                 ERR_print_errors(err);
894         if (aia)
895                 {
896                 OPENSSL_free(host);
897                 OPENSSL_free(path);
898                 OPENSSL_free(port);
899                 X509_email_free(aia);
900                 }
901         if (id)
902                 OCSP_CERTID_free(id);
903         if (req)
904                 OCSP_REQUEST_free(req);
905         if (resp)
906                 OCSP_RESPONSE_free(resp);
907         return ret;
908         err:
909         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
910         goto done;
911         }
912
913 # ifndef OPENSSL_NO_NEXTPROTONEG
914 /* This is the context that we pass to next_proto_cb */
915 typedef struct tlsextnextprotoctx_st {
916         unsigned char *data;
917         unsigned int len;
918 } tlsextnextprotoctx;
919
920 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
921         {
922         tlsextnextprotoctx *next_proto = arg;
923
924         *data = next_proto->data;
925         *len = next_proto->len;
926
927         return SSL_TLSEXT_ERR_OK;
928         }
929 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
930 #endif
931
932 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
933         {
934         /* disable resumption for sessions with forward secure ciphers */
935         return is_forward_secure;
936         }
937
938 int MAIN(int, char **);
939
940 #ifndef OPENSSL_NO_JPAKE
941 static char *jpake_secret = NULL;
942 #define no_jpake !jpake_secret
943 #else
944 #define no_jpake 1
945 #endif
946 #ifndef OPENSSL_NO_SRP
947         static srpsrvparm srp_callback_parm;
948 #endif
949 static char *srtp_profiles = NULL;
950
951 int MAIN(int argc, char *argv[])
952         {
953         X509_VERIFY_PARAM *vpm = NULL;
954         int badarg = 0;
955         short port=PORT;
956         char *CApath=NULL,*CAfile=NULL;
957         char *chCApath=NULL,*chCAfile=NULL;
958         char *vfyCApath=NULL,*vfyCAfile=NULL;
959         unsigned char *context = NULL;
960         char *dhfile = NULL;
961         int badop=0;
962         int ret=1;
963         int build_chain = 0;
964         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
965         int state=0;
966         const SSL_METHOD *meth=NULL;
967         int socket_type=SOCK_STREAM;
968         ENGINE *e=NULL;
969         char *inrand=NULL;
970         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
971         char *passarg = NULL, *pass = NULL;
972         char *dpassarg = NULL, *dpass = NULL;
973         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
974         X509 *s_cert = NULL, *s_dcert = NULL;
975         STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
976         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
977         int no_cache = 0, ext_cache = 0;
978         int rev = 0, naccept = -1;
979 #ifndef OPENSSL_NO_TLSEXT
980         EVP_PKEY *s_key2 = NULL;
981         X509 *s_cert2 = NULL;
982         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
983 # ifndef OPENSSL_NO_NEXTPROTONEG
984         const char *next_proto_neg_in = NULL;
985         tlsextnextprotoctx next_proto;
986 # endif
987 #endif
988 #ifndef OPENSSL_NO_PSK
989         /* by default do not send a PSK identity hint */
990         static char *psk_identity_hint=NULL;
991 #endif
992 #ifndef OPENSSL_NO_SRP
993         char *srpuserseed = NULL;
994         char *srp_verifier_file = NULL;
995 #endif
996         SSL_EXCERT *exc = NULL;
997         SSL_CONF_CTX *cctx = NULL;
998         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
999
1000         char *crl_file = NULL;
1001         int crl_format = FORMAT_PEM;
1002         int crl_download = 0;
1003         STACK_OF(X509_CRL) *crls = NULL;
1004
1005         meth=SSLv23_server_method();
1006
1007         local_argc=argc;
1008         local_argv=argv;
1009
1010         apps_startup();
1011 #ifdef MONOLITH
1012         s_server_init();
1013 #endif
1014
1015         if (bio_err == NULL)
1016                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
1017
1018         if (!load_config(bio_err, NULL))
1019                 goto end;
1020
1021         cctx = SSL_CONF_CTX_new();
1022         if (!cctx)
1023                 goto end;
1024         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
1025         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
1026
1027         verify_depth=0;
1028 #ifdef FIONBIO
1029         s_nbio=0;
1030 #endif
1031         s_nbio_test=0;
1032
1033         argc--;
1034         argv++;
1035
1036         while (argc >= 1)
1037                 {
1038                 if      ((strcmp(*argv,"-port") == 0) ||
1039                          (strcmp(*argv,"-accept") == 0))
1040                         {
1041                         if (--argc < 1) goto bad;
1042                         if (!extract_port(*(++argv),&port))
1043                                 goto bad;
1044                         }
1045                 else if (strcmp(*argv,"-naccept") == 0)
1046                         {
1047                         if (--argc < 1) goto bad;
1048                         naccept = atol(*(++argv));
1049                         if (naccept <= 0)
1050                                 {
1051                                 BIO_printf(bio_err, "bad accept value %s\n",
1052                                                         *argv);
1053                                 goto bad;
1054                                 }
1055                         }
1056                 else if (strcmp(*argv,"-verify") == 0)
1057                         {
1058                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1059                         if (--argc < 1) goto bad;
1060                         verify_depth=atoi(*(++argv));
1061                         if (!s_quiet)
1062                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1063                         }
1064                 else if (strcmp(*argv,"-Verify") == 0)
1065                         {
1066                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1067                                 SSL_VERIFY_CLIENT_ONCE;
1068                         if (--argc < 1) goto bad;
1069                         verify_depth=atoi(*(++argv));
1070                         if (!s_quiet)
1071                                 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1072                         }
1073                 else if (strcmp(*argv,"-context") == 0)
1074                         {
1075                         if (--argc < 1) goto bad;
1076                         context= (unsigned char *)*(++argv);
1077                         }
1078                 else if (strcmp(*argv,"-cert") == 0)
1079                         {
1080                         if (--argc < 1) goto bad;
1081                         s_cert_file= *(++argv);
1082                         }
1083                 else if (strcmp(*argv,"-CRL") == 0)
1084                         {
1085                         if (--argc < 1) goto bad;
1086                         crl_file= *(++argv);
1087                         }
1088                 else if (strcmp(*argv,"-crl_download") == 0)
1089                         crl_download = 1;
1090 #ifndef OPENSSL_NO_TLSEXT
1091                 else if (strcmp(*argv,"-authz") == 0)
1092                         {
1093                         if (--argc < 1) goto bad;
1094                         s_authz_file = *(++argv);
1095                         }
1096 #endif
1097                 else if (strcmp(*argv,"-certform") == 0)
1098                         {
1099                         if (--argc < 1) goto bad;
1100                         s_cert_format = str2fmt(*(++argv));
1101                         }
1102                 else if (strcmp(*argv,"-key") == 0)
1103                         {
1104                         if (--argc < 1) goto bad;
1105                         s_key_file= *(++argv);
1106                         }
1107                 else if (strcmp(*argv,"-keyform") == 0)
1108                         {
1109                         if (--argc < 1) goto bad;
1110                         s_key_format = str2fmt(*(++argv));
1111                         }
1112                 else if (strcmp(*argv,"-pass") == 0)
1113                         {
1114                         if (--argc < 1) goto bad;
1115                         passarg = *(++argv);
1116                         }
1117                 else if (strcmp(*argv,"-cert_chain") == 0)
1118                         {
1119                         if (--argc < 1) goto bad;
1120                         s_chain_file= *(++argv);
1121                         }
1122                 else if (strcmp(*argv,"-dhparam") == 0)
1123                         {
1124                         if (--argc < 1) goto bad;
1125                         dhfile = *(++argv);
1126                         }
1127                 else if (strcmp(*argv,"-dcertform") == 0)
1128                         {
1129                         if (--argc < 1) goto bad;
1130                         s_dcert_format = str2fmt(*(++argv));
1131                         }
1132                 else if (strcmp(*argv,"-dcert") == 0)
1133                         {
1134                         if (--argc < 1) goto bad;
1135                         s_dcert_file= *(++argv);
1136                         }
1137                 else if (strcmp(*argv,"-dkeyform") == 0)
1138                         {
1139                         if (--argc < 1) goto bad;
1140                         s_dkey_format = str2fmt(*(++argv));
1141                         }
1142                 else if (strcmp(*argv,"-dpass") == 0)
1143                         {
1144                         if (--argc < 1) goto bad;
1145                         dpassarg = *(++argv);
1146                         }
1147                 else if (strcmp(*argv,"-dkey") == 0)
1148                         {
1149                         if (--argc < 1) goto bad;
1150                         s_dkey_file= *(++argv);
1151                         }
1152                 else if (strcmp(*argv,"-dcert_chain") == 0)
1153                         {
1154                         if (--argc < 1) goto bad;
1155                         s_dchain_file= *(++argv);
1156                         }
1157                 else if (strcmp(*argv,"-nocert") == 0)
1158                         {
1159                         nocert=1;
1160                         }
1161                 else if (strcmp(*argv,"-CApath") == 0)
1162                         {
1163                         if (--argc < 1) goto bad;
1164                         CApath= *(++argv);
1165                         }
1166                 else if (strcmp(*argv,"-chainCApath") == 0)
1167                         {
1168                         if (--argc < 1) goto bad;
1169                         chCApath= *(++argv);
1170                         }
1171                 else if (strcmp(*argv,"-verifyCApath") == 0)
1172                         {
1173                         if (--argc < 1) goto bad;
1174                         vfyCApath= *(++argv);
1175                         }
1176                 else if (strcmp(*argv,"-no_cache") == 0)
1177                         no_cache = 1;
1178                 else if (strcmp(*argv,"-ext_cache") == 0)
1179                         ext_cache = 1;
1180                 else if (strcmp(*argv,"-CRLform") == 0)
1181                         {
1182                         if (--argc < 1) goto bad;
1183                         crl_format = str2fmt(*(++argv));
1184                         }
1185                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1186                         {
1187                         if (badarg)
1188                                 goto bad;
1189                         continue;
1190                         }
1191                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
1192                         {
1193                         if (badarg)
1194                                 goto bad;
1195                         continue;
1196                         }
1197                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
1198                         {
1199                         if (badarg)
1200                                 goto bad;
1201                         continue;
1202                         }
1203                 else if (strcmp(*argv,"-verify_return_error") == 0)
1204                         verify_return_error = 1;
1205                 else if (strcmp(*argv,"-verify_quiet") == 0)
1206                         verify_quiet = 1;
1207                 else if (strcmp(*argv,"-build_chain") == 0)
1208                         build_chain = 1;
1209                 else if (strcmp(*argv,"-CAfile") == 0)
1210                         {
1211                         if (--argc < 1) goto bad;
1212                         CAfile= *(++argv);
1213                         }
1214                 else if (strcmp(*argv,"-chainCAfile") == 0)
1215                         {
1216                         if (--argc < 1) goto bad;
1217                         chCAfile= *(++argv);
1218                         }
1219                 else if (strcmp(*argv,"-verifyCAfile") == 0)
1220                         {
1221                         if (--argc < 1) goto bad;
1222                         vfyCAfile= *(++argv);
1223                         }
1224 #ifdef FIONBIO  
1225                 else if (strcmp(*argv,"-nbio") == 0)
1226                         { s_nbio=1; }
1227 #endif
1228                 else if (strcmp(*argv,"-nbio_test") == 0)
1229                         {
1230 #ifdef FIONBIO  
1231                         s_nbio=1;
1232 #endif
1233                         s_nbio_test=1;
1234                         }
1235                 else if (strcmp(*argv,"-ign_eof") == 0)
1236                         s_ign_eof=1;
1237                 else if (strcmp(*argv,"-no_ign_eof") == 0)
1238                         s_ign_eof=0;
1239                 else if (strcmp(*argv,"-debug") == 0)
1240                         { s_debug=1; }
1241 #ifndef OPENSSL_NO_TLSEXT
1242                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1243                         s_tlsextdebug=1;
1244                 else if (strcmp(*argv,"-status") == 0)
1245                         s_tlsextstatus=1;
1246                 else if (strcmp(*argv,"-status_verbose") == 0)
1247                         {
1248                         s_tlsextstatus=1;
1249                         tlscstatp.verbose = 1;
1250                         }
1251                 else if (!strcmp(*argv, "-status_timeout"))
1252                         {
1253                         s_tlsextstatus=1;
1254                         if (--argc < 1) goto bad;
1255                         tlscstatp.timeout = atoi(*(++argv));
1256                         }
1257                 else if (!strcmp(*argv, "-status_url"))
1258                         {
1259                         s_tlsextstatus=1;
1260                         if (--argc < 1) goto bad;
1261                         if (!OCSP_parse_url(*(++argv),
1262                                         &tlscstatp.host,
1263                                         &tlscstatp.port,
1264                                         &tlscstatp.path,
1265                                         &tlscstatp.use_ssl))
1266                                 {
1267                                 BIO_printf(bio_err, "Error parsing URL\n");
1268                                 goto bad;
1269                                 }
1270                         }
1271 #endif
1272                 else if (strcmp(*argv,"-msg") == 0)
1273                         { s_msg=1; }
1274                 else if (strcmp(*argv,"-msgfile") == 0)
1275                         {
1276                         if (--argc < 1) goto bad;
1277                         bio_s_msg = BIO_new_file(*(++argv), "w");
1278                         }
1279 #ifndef OPENSSL_NO_SSL_TRACE
1280                 else if (strcmp(*argv,"-trace") == 0)
1281                         { s_msg=2; }
1282 #endif
1283                 else if (strcmp(*argv,"-hack") == 0)
1284                         { hack=1; }
1285                 else if (strcmp(*argv,"-state") == 0)
1286                         { state=1; }
1287                 else if (strcmp(*argv,"-crlf") == 0)
1288                         { s_crlf=1; }
1289                 else if (strcmp(*argv,"-quiet") == 0)
1290                         { s_quiet=1; }
1291                 else if (strcmp(*argv,"-brief") == 0)
1292                         {
1293                         s_quiet=1;
1294                         s_brief=1;
1295                         verify_quiet=1;
1296                         }
1297                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1298                         { no_tmp_rsa=1; }
1299                 else if (strcmp(*argv,"-no_dhe") == 0)
1300                         { no_dhe=1; }
1301                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1302                         { no_ecdhe=1; }
1303                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1304                         { no_resume_ephemeral = 1; }
1305 #ifndef OPENSSL_NO_PSK
1306                 else if (strcmp(*argv,"-psk_hint") == 0)
1307                         {
1308                         if (--argc < 1) goto bad;
1309                         psk_identity_hint= *(++argv);
1310                         }
1311                 else if (strcmp(*argv,"-psk") == 0)
1312                         {
1313                         size_t i;
1314
1315                         if (--argc < 1) goto bad;
1316                         psk_key=*(++argv);
1317                         for (i=0; i<strlen(psk_key); i++)
1318                                 {
1319                                 if (isxdigit((unsigned char)psk_key[i]))
1320                                         continue;
1321                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1322                                 goto bad;
1323                                 }
1324                         }
1325 #endif
1326 #ifndef OPENSSL_NO_SRP
1327                 else if (strcmp(*argv, "-srpvfile") == 0)
1328                         {
1329                         if (--argc < 1) goto bad;
1330                         srp_verifier_file = *(++argv);
1331                         meth = TLSv1_server_method();
1332                         }
1333                 else if (strcmp(*argv, "-srpuserseed") == 0)
1334                         {
1335                         if (--argc < 1) goto bad;
1336                         srpuserseed = *(++argv);
1337                         meth = TLSv1_server_method();
1338                         }
1339 #endif
1340                 else if (strcmp(*argv,"-rev") == 0)
1341                         { rev=1; }
1342                 else if (strcmp(*argv,"-www") == 0)
1343                         { www=1; }
1344                 else if (strcmp(*argv,"-WWW") == 0)
1345                         { www=2; }
1346                 else if (strcmp(*argv,"-HTTP") == 0)
1347                         { www=3; }
1348 #ifndef OPENSSL_NO_SSL2
1349                 else if (strcmp(*argv,"-ssl2") == 0)
1350                         { meth=SSLv2_server_method(); }
1351 #endif
1352 #ifndef OPENSSL_NO_SSL3
1353                 else if (strcmp(*argv,"-ssl3") == 0)
1354                         { meth=SSLv3_server_method(); }
1355 #endif
1356 #ifndef OPENSSL_NO_TLS1
1357                 else if (strcmp(*argv,"-tls1") == 0)
1358                         { meth=TLSv1_server_method(); }
1359                 else if (strcmp(*argv,"-tls1_1") == 0)
1360                         { meth=TLSv1_1_server_method(); }
1361                 else if (strcmp(*argv,"-tls1_2") == 0)
1362                         { meth=TLSv1_2_server_method(); }
1363 #endif
1364 #ifndef OPENSSL_NO_DTLS1
1365                 else if (strcmp(*argv,"-dtls1") == 0)
1366                         { 
1367                         meth=DTLSv1_server_method();
1368                         socket_type = SOCK_DGRAM;
1369                         }
1370                 else if (strcmp(*argv,"-dtls1_2") == 0)
1371                         { 
1372                         meth=DTLSv1_2_server_method();
1373                         socket_type = SOCK_DGRAM;
1374                         }
1375                 else if (strcmp(*argv,"-timeout") == 0)
1376                         enable_timeouts = 1;
1377                 else if (strcmp(*argv,"-mtu") == 0)
1378                         {
1379                         if (--argc < 1) goto bad;
1380                         socket_mtu = atol(*(++argv));
1381                         }
1382                 else if (strcmp(*argv, "-chain") == 0)
1383                         cert_chain = 1;
1384 #endif
1385                 else if (strcmp(*argv, "-id_prefix") == 0)
1386                         {
1387                         if (--argc < 1) goto bad;
1388                         session_id_prefix = *(++argv);
1389                         }
1390 #ifndef OPENSSL_NO_ENGINE
1391                 else if (strcmp(*argv,"-engine") == 0)
1392                         {
1393                         if (--argc < 1) goto bad;
1394                         engine_id= *(++argv);
1395                         }
1396 #endif
1397                 else if (strcmp(*argv,"-rand") == 0)
1398                         {
1399                         if (--argc < 1) goto bad;
1400                         inrand= *(++argv);
1401                         }
1402 #ifndef OPENSSL_NO_TLSEXT
1403                 else if (strcmp(*argv,"-servername") == 0)
1404                         {
1405                         if (--argc < 1) goto bad;
1406                         tlsextcbp.servername= *(++argv);
1407                         }
1408                 else if (strcmp(*argv,"-servername_fatal") == 0)
1409                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1410                 else if (strcmp(*argv,"-cert2") == 0)
1411                         {
1412                         if (--argc < 1) goto bad;
1413                         s_cert_file2= *(++argv);
1414                         }
1415                 else if (strcmp(*argv,"-key2") == 0)
1416                         {
1417                         if (--argc < 1) goto bad;
1418                         s_key_file2= *(++argv);
1419                         }
1420 # ifndef OPENSSL_NO_NEXTPROTONEG
1421                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1422                         {
1423                         if (--argc < 1) goto bad;
1424                         next_proto_neg_in = *(++argv);
1425                         }
1426 # endif
1427 #endif
1428 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1429                 else if (strcmp(*argv,"-jpake") == 0)
1430                         {
1431                         if (--argc < 1) goto bad;
1432                         jpake_secret = *(++argv);
1433                         }
1434 #endif
1435                 else if (strcmp(*argv,"-use_srtp") == 0)
1436                         {
1437                         if (--argc < 1) goto bad;
1438                         srtp_profiles = *(++argv);
1439                         }
1440                 else if (strcmp(*argv,"-keymatexport") == 0)
1441                         {
1442                         if (--argc < 1) goto bad;
1443                         keymatexportlabel= *(++argv);
1444                         }
1445                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1446                         {
1447                         if (--argc < 1) goto bad;
1448                         keymatexportlen=atoi(*(++argv));
1449                         if (keymatexportlen == 0) goto bad;
1450                         }
1451                 else
1452                         {
1453                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1454                         badop=1;
1455                         break;
1456                         }
1457                 argc--;
1458                 argv++;
1459                 }
1460         if (badop)
1461                 {
1462 bad:
1463                 sv_usage();
1464                 goto end;
1465                 }
1466
1467 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1468         if (jpake_secret)
1469                 {
1470                 if (psk_key)
1471                         {
1472                         BIO_printf(bio_err,
1473                                    "Can't use JPAKE and PSK together\n");
1474                         goto end;
1475                         }
1476                 psk_identity = "JPAKE";
1477                 }
1478 #endif
1479
1480         SSL_load_error_strings();
1481         OpenSSL_add_ssl_algorithms();
1482
1483 #ifndef OPENSSL_NO_ENGINE
1484         e = setup_engine(bio_err, engine_id, 1);
1485 #endif
1486
1487         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1488                 {
1489                 BIO_printf(bio_err, "Error getting password\n");
1490                 goto end;
1491                 }
1492
1493
1494         if (s_key_file == NULL)
1495                 s_key_file = s_cert_file;
1496 #ifndef OPENSSL_NO_TLSEXT
1497         if (s_key_file2 == NULL)
1498                 s_key_file2 = s_cert_file2;
1499 #endif
1500
1501         if (!load_excert(&exc, bio_err))
1502                 goto end;
1503
1504         if (nocert == 0)
1505                 {
1506                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1507                        "server certificate private key file");
1508                 if (!s_key)
1509                         {
1510                         ERR_print_errors(bio_err);
1511                         goto end;
1512                         }
1513
1514                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1515                         NULL, e, "server certificate file");
1516
1517                 if (!s_cert)
1518                         {
1519                         ERR_print_errors(bio_err);
1520                         goto end;
1521                         }
1522                 if (s_chain_file)
1523                         {
1524                         s_chain = load_certs(bio_err, s_chain_file,FORMAT_PEM,
1525                                         NULL, e, "server certificate chain");
1526                         if (!s_chain)
1527                                 goto end;
1528                         }
1529
1530 #ifndef OPENSSL_NO_TLSEXT
1531                 if (tlsextcbp.servername) 
1532                         {
1533                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1534                                 "second server certificate private key file");
1535                         if (!s_key2)
1536                                 {
1537                                 ERR_print_errors(bio_err);
1538                                 goto end;
1539                                 }
1540                         
1541                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1542                                 NULL, e, "second server certificate file");
1543                         
1544                         if (!s_cert2)
1545                                 {
1546                                 ERR_print_errors(bio_err);
1547                                 goto end;
1548                                 }
1549                         }
1550 #endif /* OPENSSL_NO_TLSEXT */
1551                 }
1552
1553 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 
1554         if (next_proto_neg_in)
1555                 {
1556                 unsigned short len;
1557                 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1558                 if (next_proto.data == NULL)
1559                         goto end;
1560                 next_proto.len = len;
1561                 }
1562         else
1563                 {
1564                 next_proto.data = NULL;
1565                 }
1566 #endif
1567
1568         if (crl_file)
1569                 {
1570                 X509_CRL *crl;
1571                 crl = load_crl(crl_file, crl_format);
1572                 if (!crl)
1573                         {
1574                         BIO_puts(bio_err, "Error loading CRL\n");
1575                         ERR_print_errors(bio_err);
1576                         goto end;
1577                         }
1578                 crls = sk_X509_CRL_new_null();
1579                 if (!crls || !sk_X509_CRL_push(crls, crl))
1580                         {
1581                         BIO_puts(bio_err, "Error adding CRL\n");
1582                         ERR_print_errors(bio_err);
1583                         X509_CRL_free(crl);
1584                         goto end;
1585                         }
1586                 }
1587
1588
1589         if (s_dcert_file)
1590                 {
1591
1592                 if (s_dkey_file == NULL)
1593                         s_dkey_file = s_dcert_file;
1594
1595                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1596                                 0, dpass, e,
1597                                "second certificate private key file");
1598                 if (!s_dkey)
1599                         {
1600                         ERR_print_errors(bio_err);
1601                         goto end;
1602                         }
1603
1604                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1605                                 NULL, e, "second server certificate file");
1606
1607                 if (!s_dcert)
1608                         {
1609                         ERR_print_errors(bio_err);
1610                         goto end;
1611                         }
1612                 if (s_dchain_file)
1613                         {
1614                         s_dchain = load_certs(bio_err, s_dchain_file,FORMAT_PEM,
1615                                 NULL, e, "second server certificate chain");
1616                         if (!s_dchain)
1617                                 goto end;
1618                         }
1619
1620                 }
1621
1622         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1623                 && !RAND_status())
1624                 {
1625                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1626                 }
1627         if (inrand != NULL)
1628                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1629                         app_RAND_load_files(inrand));
1630
1631         if (bio_s_out == NULL)
1632                 {
1633                 if (s_quiet && !s_debug)
1634                         {
1635                         bio_s_out=BIO_new(BIO_s_null());
1636                         if (s_msg && !bio_s_msg)
1637                                 bio_s_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1638                         }
1639                 else
1640                         {
1641                         if (bio_s_out == NULL)
1642                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1643                         }
1644                 }
1645
1646 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1647         if (nocert)
1648 #endif
1649                 {
1650                 s_cert_file=NULL;
1651                 s_key_file=NULL;
1652                 s_dcert_file=NULL;
1653                 s_dkey_file=NULL;
1654 #ifndef OPENSSL_NO_TLSEXT
1655                 s_cert_file2=NULL;
1656                 s_key_file2=NULL;
1657 #endif
1658                 }
1659
1660         ctx=SSL_CTX_new(meth);
1661         if (ctx == NULL)
1662                 {
1663                 ERR_print_errors(bio_err);
1664                 goto end;
1665                 }
1666         if (session_id_prefix)
1667                 {
1668                 if(strlen(session_id_prefix) >= 32)
1669                         BIO_printf(bio_err,
1670 "warning: id_prefix is too long, only one new session will be possible\n");
1671                 else if(strlen(session_id_prefix) >= 16)
1672                         BIO_printf(bio_err,
1673 "warning: id_prefix is too long if you use SSLv2\n");
1674                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1675                         {
1676                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1677                         ERR_print_errors(bio_err);
1678                         goto end;
1679                         }
1680                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1681                 }
1682         SSL_CTX_set_quiet_shutdown(ctx,1);
1683         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1684         if (exc) ssl_ctx_set_excert(ctx, exc);
1685         /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1686          * Setting read ahead solves this problem.
1687          */
1688         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1689
1690         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1691         if (no_cache)
1692                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1693         else if (ext_cache)
1694                 init_session_cache_ctx(ctx);
1695         else
1696                 SSL_CTX_sess_set_cache_size(ctx,128);
1697
1698         if (srtp_profiles != NULL)
1699                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1700
1701 #if 0
1702         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1703 #endif
1704
1705 #if 0
1706         if (s_cert_file == NULL)
1707                 {
1708                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1709                 goto end;
1710                 }
1711 #endif
1712
1713         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1714                 (!SSL_CTX_set_default_verify_paths(ctx)))
1715                 {
1716                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1717                 ERR_print_errors(bio_err);
1718                 /* goto end; */
1719                 }
1720         if (vpm)
1721                 SSL_CTX_set1_param(ctx, vpm);
1722
1723         ssl_ctx_add_crls(ctx, crls, 0);
1724         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1725                 goto end;
1726
1727         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1728                                                 crls, crl_download))
1729                 {
1730                 BIO_printf(bio_err, "Error loading store locations\n");
1731                 ERR_print_errors(bio_err);
1732                 goto end;
1733                 }
1734
1735 #ifndef OPENSSL_NO_TLSEXT
1736         if (s_cert2)
1737                 {
1738                 ctx2=SSL_CTX_new(meth);
1739                 if (ctx2 == NULL)
1740                         {
1741                         ERR_print_errors(bio_err);
1742                         goto end;
1743                         }
1744                 }
1745         
1746         if (ctx2)
1747                 {
1748                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1749
1750                 if (session_id_prefix)
1751                         {
1752                         if(strlen(session_id_prefix) >= 32)
1753                                 BIO_printf(bio_err,
1754                                         "warning: id_prefix is too long, only one new session will be possible\n");
1755                         else if(strlen(session_id_prefix) >= 16)
1756                                 BIO_printf(bio_err,
1757                                         "warning: id_prefix is too long if you use SSLv2\n");
1758                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1759                                 {
1760                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1761                                 ERR_print_errors(bio_err);
1762                                 goto end;
1763                                 }
1764                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1765                         }
1766                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1767                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1768                 if (exc) ssl_ctx_set_excert(ctx2, exc);
1769                 /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1770                  * Setting read ahead solves this problem.
1771                  */
1772                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1773
1774                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1775
1776                 if (no_cache)
1777                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1778                 else if (ext_cache)
1779                         init_session_cache_ctx(ctx2);
1780                 else
1781                         SSL_CTX_sess_set_cache_size(ctx2,128);
1782
1783                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1784                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1785                         {
1786                         ERR_print_errors(bio_err);
1787                         }
1788                 if (vpm)
1789                         SSL_CTX_set1_param(ctx2, vpm);
1790
1791                 ssl_ctx_add_crls(ctx2, crls, 0);
1792                 if (!args_ssl_call(ctx2, bio_err, cctx, ssl_args, no_ecdhe, no_jpake))
1793                         goto end;
1794                 }
1795
1796 # ifndef OPENSSL_NO_NEXTPROTONEG
1797         if (next_proto.data)
1798                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1799 # endif
1800 #endif 
1801
1802 #ifndef OPENSSL_NO_DH
1803         if (!no_dhe)
1804                 {
1805                 DH *dh=NULL;
1806
1807                 if (dhfile)
1808                         dh = load_dh_param(dhfile);
1809                 else if (s_cert_file)
1810                         dh = load_dh_param(s_cert_file);
1811
1812                 if (dh != NULL)
1813                         {
1814                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1815                         }
1816                 else
1817                         {
1818                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1819                         dh=get_dh512();
1820                         }
1821                 (void)BIO_flush(bio_s_out);
1822
1823                 SSL_CTX_set_tmp_dh(ctx,dh);
1824 #ifndef OPENSSL_NO_TLSEXT
1825                 if (ctx2)
1826                         {
1827                         if (!dhfile)
1828                                 { 
1829                                 DH *dh2=load_dh_param(s_cert_file2);
1830                                 if (dh2 != NULL)
1831                                         {
1832                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1833                                         (void)BIO_flush(bio_s_out);
1834
1835                                         DH_free(dh);
1836                                         dh = dh2;
1837                                         }
1838                                 }
1839                         SSL_CTX_set_tmp_dh(ctx2,dh);
1840                         }
1841 #endif
1842                 DH_free(dh);
1843                 }
1844 #endif
1845
1846         if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1847                 goto end;
1848 #ifndef OPENSSL_NO_TLSEXT
1849         if (s_authz_file != NULL && !SSL_CTX_use_authz_file(ctx, s_authz_file))
1850                 goto end;
1851 #endif
1852 #ifndef OPENSSL_NO_TLSEXT
1853         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2, NULL, build_chain))
1854                 goto end; 
1855 #endif
1856         if (s_dcert != NULL)
1857                 {
1858                 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
1859                         goto end;
1860                 }
1861
1862 #ifndef OPENSSL_NO_RSA
1863 #if 1
1864         if (!no_tmp_rsa)
1865                 {
1866                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1867 #ifndef OPENSSL_NO_TLSEXT
1868                 if (ctx2) 
1869                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1870 #endif          
1871                 }
1872 #else
1873         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1874                 {
1875                 RSA *rsa;
1876
1877                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1878                 BIO_flush(bio_s_out);
1879
1880                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1881
1882                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1883                         {
1884                         ERR_print_errors(bio_err);
1885                         goto end;
1886                         }
1887 #ifndef OPENSSL_NO_TLSEXT
1888                         if (ctx2)
1889                                 {
1890                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1891                                         {
1892                                         ERR_print_errors(bio_err);
1893                                         goto end;
1894                                         }
1895                                 }
1896 #endif
1897                 RSA_free(rsa);
1898                 BIO_printf(bio_s_out,"\n");
1899                 }
1900 #endif
1901 #endif
1902
1903         if (no_resume_ephemeral)
1904                 {
1905                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
1906 #ifndef OPENSSL_NO_TLSEXT
1907                 if (ctx2)
1908                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
1909 #endif
1910                 }
1911
1912 #ifndef OPENSSL_NO_PSK
1913 #ifdef OPENSSL_NO_JPAKE
1914         if (psk_key != NULL)
1915 #else
1916         if (psk_key != NULL || jpake_secret)
1917 #endif
1918                 {
1919                 if (s_debug)
1920                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
1921                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1922                 }
1923
1924         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1925                 {
1926                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1927                 ERR_print_errors(bio_err);
1928                 goto end;
1929                 }
1930 #endif
1931
1932         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1933         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1934                 sizeof s_server_session_id_context);
1935
1936         /* Set DTLS cookie generation and verification callbacks */
1937         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1938         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1939
1940 #ifndef OPENSSL_NO_TLSEXT
1941         if (ctx2)
1942                 {
1943                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1944                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1945                         sizeof s_server_session_id_context);
1946
1947                 tlsextcbp.biodebug = bio_s_out;
1948                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1949                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1950                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1951                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1952                 }
1953 #endif
1954
1955 #ifndef OPENSSL_NO_SRP
1956         if (srp_verifier_file != NULL)
1957                 {
1958                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
1959                 srp_callback_parm.user = NULL;
1960                 srp_callback_parm.login = NULL;
1961                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
1962                         {
1963                         BIO_printf(bio_err,
1964                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1965                                    srp_verifier_file, ret);
1966                                 goto end;
1967                         }
1968                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
1969                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);                        
1970                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1971                 }
1972         else
1973 #endif
1974         if (CAfile != NULL)
1975                 {
1976                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1977 #ifndef OPENSSL_NO_TLSEXT
1978                 if (ctx2) 
1979                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1980 #endif
1981                 }
1982
1983         BIO_printf(bio_s_out,"ACCEPT\n");
1984         (void)BIO_flush(bio_s_out);
1985         if (rev)
1986                 do_server(port,socket_type,&accept_socket,rev_body, context, naccept);
1987         else if (www)
1988                 do_server(port,socket_type,&accept_socket,www_body, context, naccept);
1989         else
1990                 do_server(port,socket_type,&accept_socket,sv_body, context, naccept);
1991         print_stats(bio_s_out,ctx);
1992         ret=0;
1993 end:
1994         if (ctx != NULL) SSL_CTX_free(ctx);
1995         if (s_cert)
1996                 X509_free(s_cert);
1997         if (crls)
1998                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
1999         if (s_dcert)
2000                 X509_free(s_dcert);
2001         if (s_key)
2002                 EVP_PKEY_free(s_key);
2003         if (s_dkey)
2004                 EVP_PKEY_free(s_dkey);
2005         if (s_chain)
2006                 sk_X509_pop_free(s_chain, X509_free);
2007         if (s_dchain)
2008                 sk_X509_pop_free(s_dchain, X509_free);
2009         if (pass)
2010                 OPENSSL_free(pass);
2011         if (dpass)
2012                 OPENSSL_free(dpass);
2013         if (vpm)
2014                 X509_VERIFY_PARAM_free(vpm);
2015         free_sessions();
2016 #ifndef OPENSSL_NO_TLSEXT
2017         if (tlscstatp.host)
2018                 OPENSSL_free(tlscstatp.host);
2019         if (tlscstatp.port)
2020                 OPENSSL_free(tlscstatp.port);
2021         if (tlscstatp.path)
2022                 OPENSSL_free(tlscstatp.path);
2023         if (ctx2 != NULL) SSL_CTX_free(ctx2);
2024         if (s_cert2)
2025                 X509_free(s_cert2);
2026         if (s_key2)
2027                 EVP_PKEY_free(s_key2);
2028         if (authz_in != NULL)
2029                 BIO_free(authz_in);
2030 #endif
2031         ssl_excert_free(exc);
2032         if (ssl_args)
2033                 sk_OPENSSL_STRING_free(ssl_args);
2034         if (cctx)
2035                 SSL_CONF_CTX_free(cctx);
2036 #ifndef OPENSSL_NO_JPAKE
2037         if (jpake_secret && psk_key)
2038                 OPENSSL_free(psk_key);
2039 #endif
2040         if (bio_s_out != NULL)
2041                 {
2042                 BIO_free(bio_s_out);
2043                 bio_s_out=NULL;
2044                 }
2045         if (bio_s_msg != NULL)
2046                 {
2047                 BIO_free(bio_s_msg);
2048                 bio_s_msg = NULL;
2049                 }
2050         apps_shutdown();
2051         OPENSSL_EXIT(ret);
2052         }
2053
2054 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2055         {
2056         BIO_printf(bio,"%4ld items in the session cache\n",
2057                 SSL_CTX_sess_number(ssl_ctx));
2058         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
2059                 SSL_CTX_sess_connect(ssl_ctx));
2060         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
2061                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2062         BIO_printf(bio,"%4ld client connects that finished\n",
2063                 SSL_CTX_sess_connect_good(ssl_ctx));
2064         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
2065                 SSL_CTX_sess_accept(ssl_ctx));
2066         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
2067                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2068         BIO_printf(bio,"%4ld server accepts that finished\n",
2069                 SSL_CTX_sess_accept_good(ssl_ctx));
2070         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
2071         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
2072         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
2073         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
2074         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
2075                 SSL_CTX_sess_cache_full(ssl_ctx),
2076                 SSL_CTX_sess_get_cache_size(ssl_ctx));
2077         }
2078
2079 static int sv_body(char *hostname, int s, int stype, unsigned char *context)
2080         {
2081         char *buf=NULL;
2082         fd_set readfds;
2083         int ret=1,width;
2084         int k,i;
2085         unsigned long l;
2086         SSL *con=NULL;
2087         BIO *sbio;
2088 #ifndef OPENSSL_NO_KRB5
2089         KSSL_CTX *kctx;
2090 #endif
2091         struct timeval timeout;
2092 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2093         struct timeval tv;
2094 #else
2095         struct timeval *timeoutp;
2096 #endif
2097
2098         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
2099                 {
2100                 BIO_printf(bio_err,"out of memory\n");
2101                 goto err;
2102                 }
2103 #ifdef FIONBIO  
2104         if (s_nbio)
2105                 {
2106                 unsigned long sl=1;
2107
2108                 if (!s_quiet)
2109                         BIO_printf(bio_err,"turning on non blocking io\n");
2110                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2111                         ERR_print_errors(bio_err);
2112                 }
2113 #endif
2114
2115         if (con == NULL) {
2116                 con=SSL_new(ctx);
2117 #ifndef OPENSSL_NO_TLSEXT
2118         if (s_tlsextdebug)
2119                 {
2120                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2121                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2122                 }
2123         if (s_tlsextstatus)
2124                 {
2125                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2126                 tlscstatp.err = bio_err;
2127                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2128                 }
2129 #endif
2130 #ifndef OPENSSL_NO_KRB5
2131                 if ((kctx = kssl_ctx_new()) != NULL)
2132                         {
2133                         SSL_set0_kssl_ctx(con, kctx);
2134                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2135                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2136                         }
2137 #endif  /* OPENSSL_NO_KRB5 */
2138                 if(context)
2139                       SSL_set_session_id_context(con, context,
2140                                                  strlen((char *)context));
2141         }
2142         SSL_clear(con);
2143 #if 0
2144 #ifdef TLSEXT_TYPE_opaque_prf_input
2145         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2146 #endif
2147 #endif
2148
2149         if (stype == SOCK_DGRAM)
2150                 {
2151
2152                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2153
2154                 if (enable_timeouts)
2155                         {
2156                         timeout.tv_sec = 0;
2157                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2158                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2159                         
2160                         timeout.tv_sec = 0;
2161                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2162                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2163                         }
2164
2165                 if (socket_mtu > 28)
2166                         {
2167                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2168                         SSL_set_mtu(con, socket_mtu - 28);
2169                         }
2170                 else
2171                         /* want to do MTU discovery */
2172                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2173
2174         /* turn on cookie exchange */
2175         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2176                 }
2177         else
2178                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2179
2180         if (s_nbio_test)
2181                 {
2182                 BIO *test;
2183
2184                 test=BIO_new(BIO_f_nbio_test());
2185                 sbio=BIO_push(test,sbio);
2186                 }
2187 #ifndef OPENSSL_NO_JPAKE
2188         if(jpake_secret)
2189                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2190 #endif
2191
2192         SSL_set_bio(con,sbio,sbio);
2193         SSL_set_accept_state(con);
2194         /* SSL_set_fd(con,s); */
2195
2196         if (s_debug)
2197                 {
2198                 SSL_set_debug(con, 1);
2199                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2200                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2201                 }
2202         if (s_msg)
2203                 {
2204 #ifndef OPENSSL_NO_SSL_TRACE
2205                 if (s_msg == 2)
2206                         SSL_set_msg_callback(con, SSL_trace);
2207                 else
2208 #endif
2209                         SSL_set_msg_callback(con, msg_cb);
2210                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2211                 }
2212 #ifndef OPENSSL_NO_TLSEXT
2213         if (s_tlsextdebug)
2214                 {
2215                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2216                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2217                 }
2218 #endif
2219
2220         width=s+1;
2221         for (;;)
2222                 {
2223                 int read_from_terminal;
2224                 int read_from_sslcon;
2225
2226                 read_from_terminal = 0;
2227                 read_from_sslcon = SSL_pending(con);
2228
2229                 if (!read_from_sslcon)
2230                         {
2231                         FD_ZERO(&readfds);
2232 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2233                         openssl_fdset(fileno(stdin),&readfds);
2234 #endif
2235                         openssl_fdset(s,&readfds);
2236                         /* Note: under VMS with SOCKETSHR the second parameter is
2237                          * currently of type (int *) whereas under other systems
2238                          * it is (void *) if you don't have a cast it will choke
2239                          * the compiler: if you do have a cast then you can either
2240                          * go for (int *) or (void *).
2241                          */
2242 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2243                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2244                          * on sockets. As a workaround we timeout the select every
2245                          * second and check for any keypress. In a proper Windows
2246                          * application we wouldn't do this because it is inefficient.
2247                          */
2248                         tv.tv_sec = 1;
2249                         tv.tv_usec = 0;
2250                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2251                         if((i < 0) || (!i && !_kbhit() ) )continue;
2252                         if(_kbhit())
2253                                 read_from_terminal = 1;
2254 #elif defined(OPENSSL_SYS_BEOS_R5)
2255                         /* Under BeOS-R5 the situation is similar to DOS */
2256                         tv.tv_sec = 1;
2257                         tv.tv_usec = 0;
2258                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2259                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2260                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2261                                 continue;
2262                         if (read(fileno(stdin), buf, 0) >= 0)
2263                                 read_from_terminal = 1;
2264                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2265 #else
2266                         if ((SSL_version(con) == DTLS1_VERSION) &&
2267                                 DTLSv1_get_timeout(con, &timeout))
2268                                 timeoutp = &timeout;
2269                         else
2270                                 timeoutp = NULL;
2271
2272                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2273
2274                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2275                                 {
2276                                 BIO_printf(bio_err,"TIMEOUT occured\n");
2277                                 }
2278
2279                         if (i <= 0) continue;
2280                         if (FD_ISSET(fileno(stdin),&readfds))
2281                                 read_from_terminal = 1;
2282 #endif
2283                         if (FD_ISSET(s,&readfds))
2284                                 read_from_sslcon = 1;
2285                         }
2286                 if (read_from_terminal)
2287                         {
2288                         if (s_crlf)
2289                                 {
2290                                 int j, lf_num;
2291
2292                                 i=raw_read_stdin(buf, bufsize/2);
2293                                 lf_num = 0;
2294                                 /* both loops are skipped when i <= 0 */
2295                                 for (j = 0; j < i; j++)
2296                                         if (buf[j] == '\n')
2297                                                 lf_num++;
2298                                 for (j = i-1; j >= 0; j--)
2299                                         {
2300                                         buf[j+lf_num] = buf[j];
2301                                         if (buf[j] == '\n')
2302                                                 {
2303                                                 lf_num--;
2304                                                 i++;
2305                                                 buf[j+lf_num] = '\r';
2306                                                 }
2307                                         }
2308                                 assert(lf_num == 0);
2309                                 }
2310                         else
2311                                 i=raw_read_stdin(buf,bufsize);
2312                         if (!s_quiet && !s_brief)
2313                                 {
2314                                 if ((i <= 0) || (buf[0] == 'Q'))
2315                                         {
2316                                         BIO_printf(bio_s_out,"DONE\n");
2317                                         SHUTDOWN(s);
2318                                         close_accept_socket();
2319                                         ret= -11;
2320                                         goto err;
2321                                         }
2322                                 if ((i <= 0) || (buf[0] == 'q'))
2323                                         {
2324                                         BIO_printf(bio_s_out,"DONE\n");
2325                                         if (SSL_version(con) != DTLS1_VERSION)
2326                         SHUTDOWN(s);
2327         /*                              close_accept_socket();
2328                                         ret= -11;*/
2329                                         goto err;
2330                                         }
2331
2332 #ifndef OPENSSL_NO_HEARTBEATS
2333                                 if ((buf[0] == 'B') &&
2334                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2335                                         {
2336                                         BIO_printf(bio_err,"HEARTBEATING\n");
2337                                         SSL_heartbeat(con);
2338                                         i=0;
2339                                         continue;
2340                                         }
2341 #endif
2342                                 if ((buf[0] == 'r') && 
2343                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2344                                         {
2345                                         SSL_renegotiate(con);
2346                                         i=SSL_do_handshake(con);
2347                                         printf("SSL_do_handshake -> %d\n",i);
2348                                         i=0; /*13; */
2349                                         continue;
2350                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2351                                         }
2352                                 if ((buf[0] == 'R') &&
2353                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2354                                         {
2355                                         SSL_set_verify(con,
2356                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2357                                         SSL_renegotiate(con);
2358                                         i=SSL_do_handshake(con);
2359                                         printf("SSL_do_handshake -> %d\n",i);
2360                                         i=0; /* 13; */
2361                                         continue;
2362                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2363                                         }
2364                                 if (buf[0] == 'P')
2365                                         {
2366                                         static const char *str="Lets print some clear text\n";
2367                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2368                                         }
2369                                 if (buf[0] == 'S')
2370                                         {
2371                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2372                                         }
2373                                 }
2374 #ifdef CHARSET_EBCDIC
2375                         ebcdic2ascii(buf,buf,i);
2376 #endif
2377                         l=k=0;
2378                         for (;;)
2379                                 {
2380                                 /* should do a select for the write */
2381 #ifdef RENEG
2382 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2383 #endif
2384                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2385 #ifndef OPENSSL_NO_SRP
2386                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2387                                         {
2388                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2389                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2390                                         if (srp_callback_parm.user) 
2391                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2392                                         else 
2393                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2394                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2395                                         }
2396 #endif
2397                                 switch (SSL_get_error(con,k))
2398                                         {
2399                                 case SSL_ERROR_NONE:
2400                                         break;
2401                                 case SSL_ERROR_WANT_WRITE:
2402                                 case SSL_ERROR_WANT_READ:
2403                                 case SSL_ERROR_WANT_X509_LOOKUP:
2404                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2405                                         break;
2406                                 case SSL_ERROR_SYSCALL:
2407                                 case SSL_ERROR_SSL:
2408                                         BIO_printf(bio_s_out,"ERROR\n");
2409                                         ERR_print_errors(bio_err);
2410                                         ret=1;
2411                                         goto err;
2412                                         /* break; */
2413                                 case SSL_ERROR_ZERO_RETURN:
2414                                         BIO_printf(bio_s_out,"DONE\n");
2415                                         ret=1;
2416                                         goto err;
2417                                         }
2418                                 l+=k;
2419                                 i-=k;
2420                                 if (i <= 0) break;
2421                                 }
2422                         }
2423                 if (read_from_sslcon)
2424                         {
2425                         if (!SSL_is_init_finished(con))
2426                                 {
2427                                 i=init_ssl_connection(con);
2428                                 
2429                                 if (i < 0)
2430                                         {
2431                                         ret=0;
2432                                         goto err;
2433                                         }
2434                                 else if (i == 0)
2435                                         {
2436                                         ret=1;
2437                                         goto err;
2438                                         }
2439                                 }
2440                         else
2441                                 {
2442 again:  
2443                                 i=SSL_read(con,(char *)buf,bufsize);
2444 #ifndef OPENSSL_NO_SRP
2445                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2446                                         {
2447                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2448                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2449                                         if (srp_callback_parm.user) 
2450                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2451                                         else 
2452                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2453                                         i=SSL_read(con,(char *)buf,bufsize);
2454                                         }
2455 #endif
2456                                 switch (SSL_get_error(con,i))
2457                                         {
2458                                 case SSL_ERROR_NONE:
2459 #ifdef CHARSET_EBCDIC
2460                                         ascii2ebcdic(buf,buf,i);
2461 #endif
2462                                         raw_write_stdout(buf,
2463                                                 (unsigned int)i);
2464                                         if (SSL_pending(con)) goto again;
2465                                         break;
2466                                 case SSL_ERROR_WANT_WRITE:
2467                                 case SSL_ERROR_WANT_READ:
2468                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2469                                         break;
2470                                 case SSL_ERROR_SYSCALL:
2471                                 case SSL_ERROR_SSL:
2472                                         BIO_printf(bio_s_out,"ERROR\n");
2473                                         ERR_print_errors(bio_err);
2474                                         ret=1;
2475                                         goto err;
2476                                 case SSL_ERROR_ZERO_RETURN:
2477                                         BIO_printf(bio_s_out,"DONE\n");
2478                                         ret=1;
2479                                         goto err;
2480                                         }
2481                                 }
2482                         }
2483                 }
2484 err:
2485         if (con != NULL)
2486                 {
2487                 BIO_printf(bio_s_out,"shutting down SSL\n");
2488 #if 1
2489                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2490 #else
2491                 SSL_shutdown(con);
2492 #endif
2493                 SSL_free(con);
2494                 }
2495         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2496         if (buf != NULL)
2497                 {
2498                 OPENSSL_cleanse(buf,bufsize);
2499                 OPENSSL_free(buf);
2500                 }
2501         if (ret >= 0)
2502                 BIO_printf(bio_s_out,"ACCEPT\n");
2503         return(ret);
2504         }
2505
2506 static void close_accept_socket(void)
2507         {
2508         BIO_printf(bio_err,"shutdown accept socket\n");
2509         if (accept_socket >= 0)
2510                 {
2511                 SHUTDOWN2(accept_socket);
2512                 }
2513         }
2514
2515 static int init_ssl_connection(SSL *con)
2516         {
2517         int i;
2518         const char *str;
2519         X509 *peer;
2520         long verify_error;
2521         MS_STATIC char buf[BUFSIZ];
2522 #ifndef OPENSSL_NO_KRB5
2523         char *client_princ;
2524 #endif
2525 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2526         const unsigned char *next_proto_neg;
2527         unsigned next_proto_neg_len;
2528 #endif
2529         unsigned char *exportedkeymat;
2530
2531
2532         i=SSL_accept(con);
2533 #ifndef OPENSSL_NO_SRP
2534         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2535                 {
2536                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2537                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2538                         if (srp_callback_parm.user) 
2539                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2540                         else 
2541                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2542                         i=SSL_accept(con);
2543                 }
2544 #endif
2545         if (i <= 0)
2546                 {
2547                 if (BIO_sock_should_retry(i))
2548                         {
2549                         BIO_printf(bio_s_out,"DELAY\n");
2550                         return(1);
2551                         }
2552
2553                 BIO_printf(bio_err,"ERROR\n");
2554                 verify_error=SSL_get_verify_result(con);
2555                 if (verify_error != X509_V_OK)
2556                         {
2557                         BIO_printf(bio_err,"verify error:%s\n",
2558                                 X509_verify_cert_error_string(verify_error));
2559                         }
2560                 /* Always print any error messages */
2561                 ERR_print_errors(bio_err);
2562                 return(0);
2563                 }
2564
2565         if (s_brief)
2566                 print_ssl_summary(bio_err, con);
2567
2568         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2569
2570         peer=SSL_get_peer_certificate(con);
2571         if (peer != NULL)
2572                 {
2573                 BIO_printf(bio_s_out,"Client certificate\n");
2574                 PEM_write_bio_X509(bio_s_out,peer);
2575                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2576                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2577                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2578                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2579                 X509_free(peer);
2580                 }
2581
2582         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2583                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2584         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2585         ssl_print_sigalgs(bio_s_out, con);
2586         ssl_print_point_formats(bio_s_out, con);
2587         ssl_print_curves(bio_s_out, con, 0);
2588         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2589
2590 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2591         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2592         if (next_proto_neg)
2593                 {
2594                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2595                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2596                 BIO_printf(bio_s_out, "\n");
2597                 }
2598 #endif
2599         {
2600         SRTP_PROTECTION_PROFILE *srtp_profile
2601           = SSL_get_selected_srtp_profile(con);
2602
2603         if(srtp_profile)
2604                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2605                            srtp_profile->name);
2606         }
2607         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2608         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2609                 TLS1_FLAGS_TLS_PADDING_BUG)
2610                 BIO_printf(bio_s_out,
2611                            "Peer has incorrect TLSv1 block padding\n");
2612 #ifndef OPENSSL_NO_KRB5
2613         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2614         if (client_princ != NULL)
2615                 {
2616                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2617                                                                 client_princ);
2618                 }
2619 #endif /* OPENSSL_NO_KRB5 */
2620         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2621                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2622         if (keymatexportlabel != NULL)
2623                 {
2624                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2625                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2626                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2627                            keymatexportlen);
2628                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2629                 if (exportedkeymat != NULL)
2630                         {
2631                         if (!SSL_export_keying_material(con, exportedkeymat,
2632                                                         keymatexportlen,
2633                                                         keymatexportlabel,
2634                                                         strlen(keymatexportlabel),
2635                                                         NULL, 0, 0))
2636                                 {
2637                                 BIO_printf(bio_s_out, "    Error\n");
2638                                 }
2639                         else
2640                                 {
2641                                 BIO_printf(bio_s_out, "    Keying material: ");
2642                                 for (i=0; i<keymatexportlen; i++)
2643                                         BIO_printf(bio_s_out, "%02X",
2644                                                    exportedkeymat[i]);
2645                                 BIO_printf(bio_s_out, "\n");
2646                                 }
2647                         OPENSSL_free(exportedkeymat);
2648                         }
2649                 }
2650
2651         return(1);
2652         }
2653
2654 #ifndef OPENSSL_NO_DH
2655 static DH *load_dh_param(const char *dhfile)
2656         {
2657         DH *ret=NULL;
2658         BIO *bio;
2659
2660         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2661                 goto err;
2662         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2663 err:
2664         if (bio != NULL) BIO_free(bio);
2665         return(ret);
2666         }
2667 #endif
2668
2669 #if 0
2670 static int load_CA(SSL_CTX *ctx, char *file)
2671         {
2672         FILE *in;
2673         X509 *x=NULL;
2674
2675         if ((in=fopen(file,"r")) == NULL)
2676                 return(0);
2677
2678         for (;;)
2679                 {
2680                 if (PEM_read_X509(in,&x,NULL) == NULL)
2681                         break;
2682                 SSL_CTX_add_client_CA(ctx,x);
2683                 }
2684         if (x != NULL) X509_free(x);
2685         fclose(in);
2686         return(1);
2687         }
2688 #endif
2689
2690 static int www_body(char *hostname, int s, int stype, unsigned char *context)
2691         {
2692         char *buf=NULL;
2693         int ret=1;
2694         int i,j,k,dot;
2695         SSL *con;
2696         const SSL_CIPHER *c;
2697         BIO *io,*ssl_bio,*sbio;
2698 #ifndef OPENSSL_NO_KRB5
2699         KSSL_CTX *kctx;
2700 #endif
2701
2702         buf=OPENSSL_malloc(bufsize);
2703         if (buf == NULL) return(0);
2704         io=BIO_new(BIO_f_buffer());
2705         ssl_bio=BIO_new(BIO_f_ssl());
2706         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2707
2708 #ifdef FIONBIO  
2709         if (s_nbio)
2710                 {
2711                 unsigned long sl=1;
2712
2713                 if (!s_quiet)
2714                         BIO_printf(bio_err,"turning on non blocking io\n");
2715                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2716                         ERR_print_errors(bio_err);
2717                 }
2718 #endif
2719
2720         /* lets make the output buffer a reasonable size */
2721         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2722
2723         if ((con=SSL_new(ctx)) == NULL) goto err;
2724 #ifndef OPENSSL_NO_TLSEXT
2725                 if (s_tlsextdebug)
2726                         {
2727                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2728                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2729                         }
2730 #endif
2731 #ifndef OPENSSL_NO_KRB5
2732         if ((kctx = kssl_ctx_new()) != NULL)
2733                 {
2734                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2735                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2736                 }
2737 #endif  /* OPENSSL_NO_KRB5 */
2738         if(context) SSL_set_session_id_context(con, context,
2739                                                strlen((char *)context));
2740
2741         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2742         if (s_nbio_test)
2743                 {
2744                 BIO *test;
2745
2746                 test=BIO_new(BIO_f_nbio_test());
2747                 sbio=BIO_push(test,sbio);
2748                 }
2749         SSL_set_bio(con,sbio,sbio);
2750         SSL_set_accept_state(con);
2751
2752         /* SSL_set_fd(con,s); */
2753         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2754         BIO_push(io,ssl_bio);
2755 #ifdef CHARSET_EBCDIC
2756         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2757 #endif
2758
2759         if (s_debug)
2760                 {
2761                 SSL_set_debug(con, 1);
2762                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2763                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2764                 }
2765         if (s_msg)
2766                 {
2767 #ifndef OPENSSL_NO_SSL_TRACE
2768                 if (s_msg == 2)
2769                         SSL_set_msg_callback(con, SSL_trace);
2770                 else
2771 #endif
2772                         SSL_set_msg_callback(con, msg_cb);
2773                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2774                 }
2775
2776         for (;;)
2777                 {
2778                 if (hack)
2779                         {
2780                         i=SSL_accept(con);
2781 #ifndef OPENSSL_NO_SRP
2782                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2783                 {
2784                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2785                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2786                         if (srp_callback_parm.user) 
2787                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2788                         else 
2789                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2790                         i=SSL_accept(con);
2791                 }
2792 #endif
2793                         switch (SSL_get_error(con,i))
2794                                 {
2795                         case SSL_ERROR_NONE:
2796                                 break;
2797                         case SSL_ERROR_WANT_WRITE:
2798                         case SSL_ERROR_WANT_READ:
2799                         case SSL_ERROR_WANT_X509_LOOKUP:
2800                                 continue;
2801                         case SSL_ERROR_SYSCALL:
2802                         case SSL_ERROR_SSL:
2803                         case SSL_ERROR_ZERO_RETURN:
2804                                 ret=1;
2805                                 goto err;
2806                                 /* break; */
2807                                 }
2808
2809                         SSL_renegotiate(con);
2810                         SSL_write(con,NULL,0);
2811                         }
2812
2813                 i=BIO_gets(io,buf,bufsize-1);
2814                 if (i < 0) /* error */
2815                         {
2816                         if (!BIO_should_retry(io))
2817                                 {
2818                                 if (!s_quiet)
2819                                         ERR_print_errors(bio_err);
2820                                 goto err;
2821                                 }
2822                         else
2823                                 {
2824                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2825 #if defined(OPENSSL_SYS_NETWARE)
2826             delay(1000);
2827 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2828                                 sleep(1);
2829 #endif
2830                                 continue;
2831                                 }
2832                         }
2833                 else if (i == 0) /* end of input */
2834                         {
2835                         ret=1;
2836                         goto end;
2837                         }
2838
2839                 /* else we have data */
2840                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2841                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2842                         {
2843                         char *p;
2844                         X509 *peer;
2845                         STACK_OF(SSL_CIPHER) *sk;
2846                         static const char *space="                          ";
2847
2848                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
2849                         {
2850                         if (strncmp("GET /renegcert", buf, 14) == 0)
2851                                 SSL_set_verify(con,
2852                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2853                         i=SSL_renegotiate(con);
2854                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
2855                         i=SSL_do_handshake(con);
2856                         if (i <= 0)
2857                                 {
2858                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2859                                 ERR_print_errors(bio_err);
2860                                 goto err;
2861                                 }
2862                         /* EVIL HACK! */
2863                         SSL_set_state(con, SSL_ST_ACCEPT);
2864                         i=SSL_do_handshake(con);
2865                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
2866                         if (i <= 0)
2867                                 {
2868                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2869                                 ERR_print_errors(bio_err);
2870                                 goto err;
2871                                 }
2872                         }
2873
2874                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2875                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2876                         BIO_puts(io,"<pre>\n");
2877 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2878                         BIO_puts(io,"\n");
2879                         for (i=0; i<local_argc; i++)
2880                                 {
2881                                 BIO_puts(io,local_argv[i]);
2882                                 BIO_write(io," ",1);
2883                                 }
2884                         BIO_puts(io,"\n");
2885
2886                         BIO_printf(io,
2887                                 "Secure Renegotiation IS%s supported\n",
2888                                 SSL_get_secure_renegotiation_support(con) ?
2889                                                         "" : " NOT");
2890
2891                         /* The following is evil and should not really
2892                          * be done */
2893                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2894                         sk=SSL_get_ciphers(con);
2895                         j=sk_SSL_CIPHER_num(sk);
2896                         for (i=0; i<j; i++)
2897                                 {
2898                                 c=sk_SSL_CIPHER_value(sk,i);
2899                                 BIO_printf(io,"%-11s:%-25s",
2900                                         SSL_CIPHER_get_version(c),
2901                                         SSL_CIPHER_get_name(c));
2902                                 if ((((i+1)%2) == 0) && (i+1 != j))
2903                                         BIO_puts(io,"\n");
2904                                 }
2905                         BIO_puts(io,"\n");
2906                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2907                         if (p != NULL)
2908                                 {
2909                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2910                                 j=i=0;
2911                                 while (*p)
2912                                         {
2913                                         if (*p == ':')
2914                                                 {
2915                                                 BIO_write(io,space,26-j);
2916                                                 i++;
2917                                                 j=0;
2918                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2919                                                 }
2920                                         else
2921                                                 {
2922                                                 BIO_write(io,p,1);
2923                                                 j++;
2924                                                 }
2925                                         p++;
2926                                         }
2927                                 BIO_puts(io,"\n");
2928                                 }
2929                         ssl_print_sigalgs(io, con);
2930                         ssl_print_curves(io, con, 0);
2931                         BIO_printf(io,(SSL_cache_hit(con)
2932                                 ?"---\nReused, "
2933                                 :"---\nNew, "));
2934                         c=SSL_get_current_cipher(con);
2935                         BIO_printf(io,"%s, Cipher is %s\n",
2936                                 SSL_CIPHER_get_version(c),
2937                                 SSL_CIPHER_get_name(c));
2938                         SSL_SESSION_print(io,SSL_get_session(con));
2939                         BIO_printf(io,"---\n");
2940                         print_stats(io,SSL_get_SSL_CTX(con));
2941                         BIO_printf(io,"---\n");
2942                         peer=SSL_get_peer_certificate(con);
2943                         if (peer != NULL)
2944                                 {
2945                                 BIO_printf(io,"Client certificate\n");
2946                                 X509_print(io,peer);
2947                                 PEM_write_bio_X509(io,peer);
2948                                 }
2949                         else
2950                                 BIO_puts(io,"no client certificate available\n");
2951                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2952                         break;
2953                         }
2954                 else if ((www == 2 || www == 3)
2955                          && (strncmp("GET /",buf,5) == 0))
2956                         {
2957                         BIO *file;
2958                         char *p,*e;
2959                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2960
2961                         /* skip the '/' */
2962                         p= &(buf[5]);
2963
2964                         dot = 1;
2965                         for (e=p; *e != '\0'; e++)
2966                                 {
2967                                 if (e[0] == ' ')
2968                                         break;
2969
2970                                 switch (dot)
2971                                         {
2972                                 case 1:
2973                                         dot = (e[0] == '.') ? 2 : 0;
2974                                         break;
2975                                 case 2:
2976                                         dot = (e[0] == '.') ? 3 : 0;
2977                                         break;
2978                                 case 3:
2979                                         dot = (e[0] == '/') ? -1 : 0;
2980                                         break;
2981                                         }
2982                                 if (dot == 0)
2983                                         dot = (e[0] == '/') ? 1 : 0;
2984                                 }
2985                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2986
2987                         if (*e == '\0')
2988                                 {
2989                                 BIO_puts(io,text);
2990                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2991                                 break;
2992                                 }
2993                         *e='\0';
2994
2995                         if (dot)
2996                                 {
2997                                 BIO_puts(io,text);
2998                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2999                                 break;
3000                                 }
3001
3002                         if (*p == '/')
3003                                 {
3004                                 BIO_puts(io,text);
3005                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
3006                                 break;
3007                                 }
3008
3009 #if 0
3010                         /* append if a directory lookup */
3011                         if (e[-1] == '/')
3012                                 strcat(p,"index.html");
3013 #endif
3014
3015                         /* if a directory, do the index thang */
3016                         if (app_isdir(p)>0)
3017                                 {
3018 #if 0 /* must check buffer size */
3019                                 strcat(p,"/index.html");
3020 #else
3021                                 BIO_puts(io,text);
3022                                 BIO_printf(io,"'%s' is a directory\r\n",p);
3023                                 break;
3024 #endif
3025                                 }
3026
3027                         if ((file=BIO_new_file(p,"r")) == NULL)
3028                                 {
3029                                 BIO_puts(io,text);
3030                                 BIO_printf(io,"Error opening '%s'\r\n",p);
3031                                 ERR_print_errors(io);
3032                                 break;
3033                                 }
3034
3035                         if (!s_quiet)
3036                                 BIO_printf(bio_err,"FILE:%s\n",p);
3037
3038                         if (www == 2)
3039                                 {
3040                                 i=strlen(p);
3041                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
3042                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
3043                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
3044                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3045                                 else
3046                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3047                                 }
3048                         /* send the file */
3049                         for (;;)
3050                                 {
3051                                 i=BIO_read(file,buf,bufsize);
3052                                 if (i <= 0) break;
3053
3054 #ifdef RENEG
3055                                 total_bytes+=i;
3056                                 fprintf(stderr,"%d\n",i);
3057                                 if (total_bytes > 3*1024)
3058                                         {
3059                                         total_bytes=0;
3060                                         fprintf(stderr,"RENEGOTIATE\n");
3061                                         SSL_renegotiate(con);
3062                                         }
3063 #endif
3064
3065                                 for (j=0; j<i; )
3066                                         {
3067 #ifdef RENEG
3068 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
3069 #endif
3070                                         k=BIO_write(io,&(buf[j]),i-j);
3071                                         if (k <= 0)
3072                                                 {
3073                                                 if (!BIO_should_retry(io))
3074                                                         goto write_error;
3075                                                 else
3076                                                         {
3077                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
3078                                                         }
3079                                                 }
3080                                         else
3081                                                 {
3082                                                 j+=k;
3083                                                 }
3084                                         }
3085                                 }
3086 write_error:
3087                         BIO_free(file);
3088                         break;
3089                         }
3090                 }
3091
3092         for (;;)
3093                 {
3094                 i=(int)BIO_flush(io);
3095                 if (i <= 0)
3096                         {
3097                         if (!BIO_should_retry(io))
3098                                 break;
3099                         }
3100                 else
3101                         break;
3102                 }
3103 end:
3104 #if 1
3105         /* make sure we re-use sessions */
3106         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3107 #else
3108         /* This kills performance */
3109 /*      SSL_shutdown(con); A shutdown gets sent in the
3110  *      BIO_free_all(io) procession */
3111 #endif
3112
3113 err:
3114
3115         if (ret >= 0)
3116                 BIO_printf(bio_s_out,"ACCEPT\n");
3117
3118         if (buf != NULL) OPENSSL_free(buf);
3119         if (io != NULL) BIO_free_all(io);
3120 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3121         return(ret);
3122         }
3123
3124 static int rev_body(char *hostname, int s, int stype, unsigned char *context)
3125         {
3126         char *buf=NULL;
3127         int i;
3128         int ret=1;
3129         SSL *con;
3130         BIO *io,*ssl_bio,*sbio;
3131 #ifndef OPENSSL_NO_KRB5
3132         KSSL_CTX *kctx;
3133 #endif
3134
3135         buf=OPENSSL_malloc(bufsize);
3136         if (buf == NULL) return(0);
3137         io=BIO_new(BIO_f_buffer());
3138         ssl_bio=BIO_new(BIO_f_ssl());
3139         if ((io == NULL) || (ssl_bio == NULL)) goto err;
3140
3141         /* lets make the output buffer a reasonable size */
3142         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
3143
3144         if ((con=SSL_new(ctx)) == NULL) goto err;
3145 #ifndef OPENSSL_NO_TLSEXT
3146         if (s_tlsextdebug)
3147                 {
3148                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3149                 SSL_set_tlsext_debug_arg(con, bio_s_out);
3150                 }
3151 #endif
3152 #ifndef OPENSSL_NO_KRB5
3153         if ((kctx = kssl_ctx_new()) != NULL)
3154                 {
3155                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
3156                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
3157                 }
3158 #endif  /* OPENSSL_NO_KRB5 */
3159         if(context) SSL_set_session_id_context(con, context,
3160                                                strlen((char *)context));
3161
3162         sbio=BIO_new_socket(s,BIO_NOCLOSE);
3163         SSL_set_bio(con,sbio,sbio);
3164         SSL_set_accept_state(con);
3165
3166         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
3167         BIO_push(io,ssl_bio);
3168 #ifdef CHARSET_EBCDIC
3169         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
3170 #endif
3171
3172         if (s_debug)
3173                 {
3174                 SSL_set_debug(con, 1);
3175                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
3176                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
3177                 }
3178         if (s_msg)
3179                 {
3180 #ifndef OPENSSL_NO_SSL_TRACE
3181                 if (s_msg == 2)
3182                         SSL_set_msg_callback(con, SSL_trace);
3183                 else
3184 #endif
3185                         SSL_set_msg_callback(con, msg_cb);
3186                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3187                 }
3188
3189         for (;;)
3190                 {
3191                 i = BIO_do_handshake(io);
3192                 if (i > 0)
3193                         break;
3194                 if (!BIO_should_retry(io))
3195                         {
3196                         BIO_puts(bio_err, "CONNECTION FAILURE\n");
3197                         ERR_print_errors(bio_err);
3198                         goto end;
3199                         }
3200                 }
3201         BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3202         print_ssl_summary(bio_err, con);
3203
3204         for (;;)
3205                 {
3206                 i=BIO_gets(io,buf,bufsize-1);
3207                 if (i < 0) /* error */
3208                         {
3209                         if (!BIO_should_retry(io))
3210                                 {
3211                                 if (!s_quiet)
3212                                         ERR_print_errors(bio_err);
3213                                 goto err;
3214                                 }
3215                         else
3216                                 {
3217                                 BIO_printf(bio_s_out,"read R BLOCK\n");
3218 #if defined(OPENSSL_SYS_NETWARE)
3219             delay(1000);
3220 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
3221                                 sleep(1);
3222 #endif
3223                                 continue;
3224                                 }
3225                         }
3226                 else if (i == 0) /* end of input */
3227                         {
3228                         ret=1;
3229                         BIO_printf(bio_err, "CONNECTION CLOSED\n");
3230                         goto end;
3231                         }
3232                 else
3233                         {
3234                         char *p = buf + i - 1;
3235                         while(i && (*p == '\n' || *p == '\r'))
3236                                 {
3237                                 p--;
3238                                 i--;
3239                                 }
3240                         if (!s_ign_eof && i == 5 && !strncmp(buf, "CLOSE", 5))
3241                                 {
3242                                 ret = 1;
3243                                 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3244                                 goto end;
3245                                 }
3246                         BUF_reverse((unsigned char *)buf, NULL, i);
3247                         buf[i] = '\n';
3248                         BIO_write(io, buf, i + 1);
3249                         for (;;)
3250                                 {
3251                                 i = BIO_flush(io);
3252                                 if (i > 0)
3253                                         break;
3254                                 if (!BIO_should_retry(io))
3255                                         goto end;
3256                                 }
3257                         }
3258                 }
3259 end:
3260         /* make sure we re-use sessions */
3261         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3262
3263 err:
3264
3265         if (buf != NULL) OPENSSL_free(buf);
3266         if (io != NULL) BIO_free_all(io);
3267         return(ret);
3268         }
3269
3270 #ifndef OPENSSL_NO_RSA
3271 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3272         {
3273         BIGNUM *bn = NULL;
3274         static RSA *rsa_tmp=NULL;
3275
3276         if (!rsa_tmp && ((bn = BN_new()) == NULL))
3277                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
3278         if (!rsa_tmp && bn)
3279                 {
3280                 if (!s_quiet)
3281                         {
3282                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
3283                         (void)BIO_flush(bio_err);
3284                         }
3285                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3286                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
3287                         {
3288                         if(rsa_tmp) RSA_free(rsa_tmp);
3289                         rsa_tmp = NULL;
3290                         }
3291                 if (!s_quiet)
3292                         {
3293                         BIO_printf(bio_err,"\n");
3294                         (void)BIO_flush(bio_err);
3295                         }
3296                 BN_free(bn);
3297                 }
3298         return(rsa_tmp);
3299         }
3300 #endif
3301
3302 #define MAX_SESSION_ID_ATTEMPTS 10
3303 static int generate_session_id(const SSL *ssl, unsigned char *id,
3304                                 unsigned int *id_len)
3305         {
3306         unsigned int count = 0;
3307         do      {
3308                 RAND_pseudo_bytes(id, *id_len);
3309                 /* Prefix the session_id with the required prefix. NB: If our
3310                  * prefix is too long, clip it - but there will be worse effects
3311                  * anyway, eg. the server could only possibly create 1 session
3312                  * ID (ie. the prefix!) so all future session negotiations will
3313                  * fail due to conflicts. */
3314                 memcpy(id, session_id_prefix,
3315                         (strlen(session_id_prefix) < *id_len) ?
3316                         strlen(session_id_prefix) : *id_len);
3317                 }
3318         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3319                 (++count < MAX_SESSION_ID_ATTEMPTS));
3320         if(count >= MAX_SESSION_ID_ATTEMPTS)
3321                 return 0;
3322         return 1;
3323         }
3324
3325 /* By default s_server uses an in-memory cache which caches SSL_SESSION
3326  * structures without any serialisation. This hides some bugs which only
3327  * become apparent in deployed servers. By implementing a basic external
3328  * session cache some issues can be debugged using s_server.
3329  */
3330
3331 typedef struct simple_ssl_session_st
3332         {
3333         unsigned char *id;
3334         unsigned int idlen;
3335         unsigned char *der;
3336         int derlen;
3337         struct simple_ssl_session_st *next;
3338         } simple_ssl_session;
3339
3340 static simple_ssl_session *first = NULL;
3341
3342 static int add_session(SSL *ssl, SSL_SESSION *session)
3343         {
3344         simple_ssl_session *sess;
3345         unsigned char *p;
3346
3347         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3348
3349         SSL_SESSION_get_id(session, &sess->idlen);
3350         sess->derlen = i2d_SSL_SESSION(session, NULL);
3351
3352         sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3353
3354         sess->der = OPENSSL_malloc(sess->derlen);
3355         p = sess->der;
3356         i2d_SSL_SESSION(session, &p);
3357
3358         sess->next = first;
3359         first = sess;
3360         BIO_printf(bio_err, "New session added to external cache\n");
3361         return 0;
3362         }
3363
3364 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3365                                         int *do_copy)
3366         {
3367         simple_ssl_session *sess;
3368         *do_copy = 0;
3369         for (sess = first; sess; sess = sess->next)
3370                 {
3371                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3372                         {
3373                         const unsigned char *p = sess->der;
3374                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3375                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3376                         }
3377                 }
3378         BIO_printf(bio_err, "Lookup session: cache miss\n");
3379         return NULL;
3380         }
3381
3382 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3383         {
3384         simple_ssl_session *sess, *prev = NULL;
3385         const unsigned char *id;
3386         unsigned int idlen;
3387         id = SSL_SESSION_get_id(session, &idlen);       
3388         for (sess = first; sess; sess = sess->next)
3389                 {
3390                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
3391                         {
3392                         if(prev)
3393                                 prev->next = sess->next;
3394                         else
3395                                 first = sess->next;
3396                         OPENSSL_free(sess->id);
3397                         OPENSSL_free(sess->der);
3398                         OPENSSL_free(sess);
3399                         return;
3400                         }
3401                 prev = sess;
3402                 }
3403         }
3404
3405 static void init_session_cache_ctx(SSL_CTX *sctx)
3406         {
3407         SSL_CTX_set_session_cache_mode(sctx,
3408                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
3409         SSL_CTX_sess_set_new_cb(sctx, add_session);
3410         SSL_CTX_sess_set_get_cb(sctx, get_session);
3411         SSL_CTX_sess_set_remove_cb(sctx, del_session);
3412         }
3413
3414 static void free_sessions(void)
3415         {
3416         simple_ssl_session *sess, *tsess;
3417         for (sess = first; sess;)
3418                 {
3419                 OPENSSL_free(sess->id);
3420                 OPENSSL_free(sess->der);
3421                 tsess = sess;
3422                 sess = sess->next;
3423                 OPENSSL_free(tsess);
3424                 }
3425         first = NULL;
3426         }