Integrate host, email and IP address checks into X509_verify.
[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, unsigned char *context);
209 static int www_body(char *hostname, int s, unsigned char *context);
210 static int rev_body(char *hostname, int s, 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," -timeout      - Enable timeouts\n");
537         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
538         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
539         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
540         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
541         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
542         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
543         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
544 #ifndef OPENSSL_NO_DH
545         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
546 #endif
547 #ifndef OPENSSL_NO_ECDH
548         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
549 #endif
550         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
551         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
552         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
553         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
554         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
555         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
556 #ifndef OPENSSL_NO_ENGINE
557         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
558 #endif
559         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
560         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
561 #ifndef OPENSSL_NO_TLSEXT
562         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
563         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
564         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
565         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
566         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
567         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
568         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
569         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
570         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
571 # ifndef OPENSSL_NO_NEXTPROTONEG
572         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
573 # endif
574         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
575 #endif
576         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
577         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
578         }
579
580 static int local_argc=0;
581 static char **local_argv;
582
583 #ifdef CHARSET_EBCDIC
584 static int ebcdic_new(BIO *bi);
585 static int ebcdic_free(BIO *a);
586 static int ebcdic_read(BIO *b, char *out, int outl);
587 static int ebcdic_write(BIO *b, const char *in, int inl);
588 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
589 static int ebcdic_gets(BIO *bp, char *buf, int size);
590 static int ebcdic_puts(BIO *bp, const char *str);
591
592 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
593 static BIO_METHOD methods_ebcdic=
594         {
595         BIO_TYPE_EBCDIC_FILTER,
596         "EBCDIC/ASCII filter",
597         ebcdic_write,
598         ebcdic_read,
599         ebcdic_puts,
600         ebcdic_gets,
601         ebcdic_ctrl,
602         ebcdic_new,
603         ebcdic_free,
604         };
605
606 typedef struct
607 {
608         size_t  alloced;
609         char    buff[1];
610 } EBCDIC_OUTBUFF;
611
612 BIO_METHOD *BIO_f_ebcdic_filter()
613 {
614         return(&methods_ebcdic);
615 }
616
617 static int ebcdic_new(BIO *bi)
618 {
619         EBCDIC_OUTBUFF *wbuf;
620
621         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
622         wbuf->alloced = 1024;
623         wbuf->buff[0] = '\0';
624
625         bi->ptr=(char *)wbuf;
626         bi->init=1;
627         bi->flags=0;
628         return(1);
629 }
630
631 static int ebcdic_free(BIO *a)
632 {
633         if (a == NULL) return(0);
634         if (a->ptr != NULL)
635                 OPENSSL_free(a->ptr);
636         a->ptr=NULL;
637         a->init=0;
638         a->flags=0;
639         return(1);
640 }
641         
642 static int ebcdic_read(BIO *b, char *out, int outl)
643 {
644         int ret=0;
645
646         if (out == NULL || outl == 0) return(0);
647         if (b->next_bio == NULL) return(0);
648
649         ret=BIO_read(b->next_bio,out,outl);
650         if (ret > 0)
651                 ascii2ebcdic(out,out,ret);
652         return(ret);
653 }
654
655 static int ebcdic_write(BIO *b, const char *in, int inl)
656 {
657         EBCDIC_OUTBUFF *wbuf;
658         int ret=0;
659         int num;
660         unsigned char n;
661
662         if ((in == NULL) || (inl <= 0)) return(0);
663         if (b->next_bio == NULL) return(0);
664
665         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
666
667         if (inl > (num = wbuf->alloced))
668         {
669                 num = num + num;  /* double the size */
670                 if (num < inl)
671                         num = inl;
672                 OPENSSL_free(wbuf);
673                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
674
675                 wbuf->alloced = num;
676                 wbuf->buff[0] = '\0';
677
678                 b->ptr=(char *)wbuf;
679         }
680
681         ebcdic2ascii(wbuf->buff, in, inl);
682
683         ret=BIO_write(b->next_bio, wbuf->buff, inl);
684
685         return(ret);
686 }
687
688 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
689 {
690         long ret;
691
692         if (b->next_bio == NULL) return(0);
693         switch (cmd)
694         {
695         case BIO_CTRL_DUP:
696                 ret=0L;
697                 break;
698         default:
699                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
700                 break;
701         }
702         return(ret);
703 }
704
705 static int ebcdic_gets(BIO *bp, char *buf, int size)
706 {
707         int i, ret=0;
708         if (bp->next_bio == NULL) return(0);
709 /*      return(BIO_gets(bp->next_bio,buf,size));*/
710         for (i=0; i<size-1; ++i)
711         {
712                 ret = ebcdic_read(bp,&buf[i],1);
713                 if (ret <= 0)
714                         break;
715                 else if (buf[i] == '\n')
716                 {
717                         ++i;
718                         break;
719                 }
720         }
721         if (i < size)
722                 buf[i] = '\0';
723         return (ret < 0 && i == 0) ? ret : i;
724 }
725
726 static int ebcdic_puts(BIO *bp, const char *str)
727 {
728         if (bp->next_bio == NULL) return(0);
729         return ebcdic_write(bp, str, strlen(str));
730 }
731 #endif
732
733 #ifndef OPENSSL_NO_TLSEXT
734
735 /* This is a context that we pass to callbacks */
736 typedef struct tlsextctx_st {
737    char * servername;
738    BIO * biodebug;
739    int extension_error;
740 } tlsextctx;
741
742
743 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
744         {
745         tlsextctx * p = (tlsextctx *) arg;
746         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
747         if (servername && p->biodebug) 
748                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
749         
750         if (!p->servername)
751                 return SSL_TLSEXT_ERR_NOACK;
752         
753         if (servername)
754                 {
755                 if (strcmp(servername,p->servername)) 
756                         return p->extension_error;
757                 if (ctx2)
758                         {
759                         BIO_printf(p->biodebug,"Switching server context.\n");
760                         SSL_set_SSL_CTX(s,ctx2);
761                         }     
762                 }
763         return SSL_TLSEXT_ERR_OK;
764 }
765
766 /* Structure passed to cert status callback */
767
768 typedef struct tlsextstatusctx_st {
769    /* Default responder to use */
770    char *host, *path, *port;
771    int use_ssl;
772    int timeout;
773    BIO *err;
774    int verbose;
775 } tlsextstatusctx;
776
777 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
778
779 /* Certificate Status callback. This is called when a client includes a
780  * certificate status request extension.
781  *
782  * This is a simplified version. It examines certificates each time and
783  * makes one OCSP responder query for each request.
784  *
785  * A full version would store details such as the OCSP certificate IDs and
786  * minimise the number of OCSP responses by caching them until they were
787  * considered "expired".
788  */
789
790 static int cert_status_cb(SSL *s, void *arg)
791         {
792         tlsextstatusctx *srctx = arg;
793         BIO *err = srctx->err;
794         char *host, *port, *path;
795         int use_ssl;
796         unsigned char *rspder = NULL;
797         int rspderlen;
798         STACK_OF(OPENSSL_STRING) *aia = NULL;
799         X509 *x = NULL;
800         X509_STORE_CTX inctx;
801         X509_OBJECT obj;
802         OCSP_REQUEST *req = NULL;
803         OCSP_RESPONSE *resp = NULL;
804         OCSP_CERTID *id = NULL;
805         STACK_OF(X509_EXTENSION) *exts;
806         int ret = SSL_TLSEXT_ERR_NOACK;
807         int i;
808 #if 0
809 STACK_OF(OCSP_RESPID) *ids;
810 SSL_get_tlsext_status_ids(s, &ids);
811 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
812 #endif
813         if (srctx->verbose)
814                 BIO_puts(err, "cert_status: callback called\n");
815         /* Build up OCSP query from server certificate */
816         x = SSL_get_certificate(s);
817         aia = X509_get1_ocsp(x);
818         if (aia)
819                 {
820                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
821                         &host, &port, &path, &use_ssl))
822                         {
823                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
824                         goto err;
825                         }
826                 if (srctx->verbose)
827                         BIO_printf(err, "cert_status: AIA URL: %s\n",
828                                         sk_OPENSSL_STRING_value(aia, 0));
829                 }
830         else
831                 {
832                 if (!srctx->host)
833                         {
834                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
835                         goto done;
836                         }
837                 host = srctx->host;
838                 path = srctx->path;
839                 port = srctx->port;
840                 use_ssl = srctx->use_ssl;
841                 }
842                 
843         if (!X509_STORE_CTX_init(&inctx,
844                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
845                                 NULL, NULL))
846                 goto err;
847         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
848                                 X509_get_issuer_name(x),&obj) <= 0)
849                 {
850                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
851                 X509_STORE_CTX_cleanup(&inctx);
852                 goto done;
853                 }
854         req = OCSP_REQUEST_new();
855         if (!req)
856                 goto err;
857         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
858         X509_free(obj.data.x509);
859         X509_STORE_CTX_cleanup(&inctx);
860         if (!id)
861                 goto err;
862         if (!OCSP_request_add0_id(req, id))
863                 goto err;
864         id = NULL;
865         /* Add any extensions to the request */
866         SSL_get_tlsext_status_exts(s, &exts);
867         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
868                 {
869                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
870                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
871                         goto err;
872                 }
873         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
874                                         srctx->timeout);
875         if (!resp)
876                 {
877                 BIO_puts(err, "cert_status: error querying responder\n");
878                 goto done;
879                 }
880         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
881         if (rspderlen <= 0)
882                 goto err;
883         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
884         if (srctx->verbose)
885                 {
886                 BIO_puts(err, "cert_status: ocsp response sent:\n");
887                 OCSP_RESPONSE_print(err, resp, 2);
888                 }
889         ret = SSL_TLSEXT_ERR_OK;
890         done:
891         if (ret != SSL_TLSEXT_ERR_OK)
892                 ERR_print_errors(err);
893         if (aia)
894                 {
895                 OPENSSL_free(host);
896                 OPENSSL_free(path);
897                 OPENSSL_free(port);
898                 X509_email_free(aia);
899                 }
900         if (id)
901                 OCSP_CERTID_free(id);
902         if (req)
903                 OCSP_REQUEST_free(req);
904         if (resp)
905                 OCSP_RESPONSE_free(resp);
906         return ret;
907         err:
908         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
909         goto done;
910         }
911
912 # ifndef OPENSSL_NO_NEXTPROTONEG
913 /* This is the context that we pass to next_proto_cb */
914 typedef struct tlsextnextprotoctx_st {
915         unsigned char *data;
916         unsigned int len;
917 } tlsextnextprotoctx;
918
919 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
920         {
921         tlsextnextprotoctx *next_proto = arg;
922
923         *data = next_proto->data;
924         *len = next_proto->len;
925
926         return SSL_TLSEXT_ERR_OK;
927         }
928 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
929 #endif
930
931 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
932         {
933         /* disable resumption for sessions with forward secure ciphers */
934         return is_forward_secure;
935         }
936
937 int MAIN(int, char **);
938
939 #ifndef OPENSSL_NO_JPAKE
940 static char *jpake_secret = NULL;
941 #endif
942 #ifndef OPENSSL_NO_SRP
943         static srpsrvparm srp_callback_parm;
944 #endif
945 static char *srtp_profiles = NULL;
946
947 int MAIN(int argc, char *argv[])
948         {
949         X509_VERIFY_PARAM *vpm = NULL;
950         int badarg = 0;
951         short port=PORT;
952         char *CApath=NULL,*CAfile=NULL;
953         char *chCApath=NULL,*chCAfile=NULL;
954         char *vfyCApath=NULL,*vfyCAfile=NULL;
955         unsigned char *context = NULL;
956         char *dhfile = NULL;
957         int badop=0;
958         int ret=1;
959         int build_chain = 0;
960         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
961         int state=0;
962         const SSL_METHOD *meth=NULL;
963         int socket_type=SOCK_STREAM;
964         ENGINE *e=NULL;
965         char *inrand=NULL;
966         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
967         char *passarg = NULL, *pass = NULL;
968         char *dpassarg = NULL, *dpass = NULL;
969         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
970         X509 *s_cert = NULL, *s_dcert = NULL;
971         STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL;
972         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
973         int no_cache = 0, ext_cache = 0;
974         int rev = 0, naccept = -1;
975 #ifndef OPENSSL_NO_TLSEXT
976         EVP_PKEY *s_key2 = NULL;
977         X509 *s_cert2 = NULL;
978         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
979 # ifndef OPENSSL_NO_NEXTPROTONEG
980         const char *next_proto_neg_in = NULL;
981         tlsextnextprotoctx next_proto;
982 # endif
983 #endif
984 #ifndef OPENSSL_NO_PSK
985         /* by default do not send a PSK identity hint */
986         static char *psk_identity_hint=NULL;
987 #endif
988 #ifndef OPENSSL_NO_SRP
989         char *srpuserseed = NULL;
990         char *srp_verifier_file = NULL;
991 #endif
992         SSL_EXCERT *exc = NULL;
993         SSL_CONF_CTX *cctx = NULL;
994         STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
995
996         char *crl_file = NULL;
997         int crl_format = FORMAT_PEM;
998         STACK_OF(X509_CRL) *crls = NULL;
999
1000         meth=SSLv23_server_method();
1001
1002         local_argc=argc;
1003         local_argv=argv;
1004
1005         apps_startup();
1006 #ifdef MONOLITH
1007         s_server_init();
1008 #endif
1009
1010         if (bio_err == NULL)
1011                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
1012
1013         if (!load_config(bio_err, NULL))
1014                 goto end;
1015
1016         cctx = SSL_CONF_CTX_new();
1017         if (!cctx)
1018                 goto end;
1019         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
1020         SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
1021
1022         verify_depth=0;
1023 #ifdef FIONBIO
1024         s_nbio=0;
1025 #endif
1026         s_nbio_test=0;
1027
1028         argc--;
1029         argv++;
1030
1031         while (argc >= 1)
1032                 {
1033                 if      ((strcmp(*argv,"-port") == 0) ||
1034                          (strcmp(*argv,"-accept") == 0))
1035                         {
1036                         if (--argc < 1) goto bad;
1037                         if (!extract_port(*(++argv),&port))
1038                                 goto bad;
1039                         }
1040                 else if (strcmp(*argv,"-naccept") == 0)
1041                         {
1042                         if (--argc < 1) goto bad;
1043                         naccept = atol(*(++argv));
1044                         if (naccept <= 0)
1045                                 {
1046                                 BIO_printf(bio_err, "bad accept value %s\n",
1047                                                         *argv);
1048                                 goto bad;
1049                                 }
1050                         }
1051                 else if (strcmp(*argv,"-verify") == 0)
1052                         {
1053                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1054                         if (--argc < 1) goto bad;
1055                         verify_depth=atoi(*(++argv));
1056                         if (!s_quiet)
1057                                 BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1058                         }
1059                 else if (strcmp(*argv,"-Verify") == 0)
1060                         {
1061                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1062                                 SSL_VERIFY_CLIENT_ONCE;
1063                         if (--argc < 1) goto bad;
1064                         verify_depth=atoi(*(++argv));
1065                         if (!s_quiet)
1066                                 BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1067                         }
1068                 else if (strcmp(*argv,"-context") == 0)
1069                         {
1070                         if (--argc < 1) goto bad;
1071                         context= (unsigned char *)*(++argv);
1072                         }
1073                 else if (strcmp(*argv,"-cert") == 0)
1074                         {
1075                         if (--argc < 1) goto bad;
1076                         s_cert_file= *(++argv);
1077                         }
1078                 else if (strcmp(*argv,"-CRL") == 0)
1079                         {
1080                         if (--argc < 1) goto bad;
1081                         crl_file= *(++argv);
1082                         }
1083 #ifndef OPENSSL_NO_TLSEXT
1084                 else if (strcmp(*argv,"-authz") == 0)
1085                         {
1086                         if (--argc < 1) goto bad;
1087                         s_authz_file = *(++argv);
1088                         }
1089 #endif
1090                 else if (strcmp(*argv,"-certform") == 0)
1091                         {
1092                         if (--argc < 1) goto bad;
1093                         s_cert_format = str2fmt(*(++argv));
1094                         }
1095                 else if (strcmp(*argv,"-key") == 0)
1096                         {
1097                         if (--argc < 1) goto bad;
1098                         s_key_file= *(++argv);
1099                         }
1100                 else if (strcmp(*argv,"-keyform") == 0)
1101                         {
1102                         if (--argc < 1) goto bad;
1103                         s_key_format = str2fmt(*(++argv));
1104                         }
1105                 else if (strcmp(*argv,"-pass") == 0)
1106                         {
1107                         if (--argc < 1) goto bad;
1108                         passarg = *(++argv);
1109                         }
1110                 else if (strcmp(*argv,"-cert_chain") == 0)
1111                         {
1112                         if (--argc < 1) goto bad;
1113                         s_chain_file= *(++argv);
1114                         }
1115                 else if (strcmp(*argv,"-dhparam") == 0)
1116                         {
1117                         if (--argc < 1) goto bad;
1118                         dhfile = *(++argv);
1119                         }
1120                 else if (strcmp(*argv,"-dcertform") == 0)
1121                         {
1122                         if (--argc < 1) goto bad;
1123                         s_dcert_format = str2fmt(*(++argv));
1124                         }
1125                 else if (strcmp(*argv,"-dcert") == 0)
1126                         {
1127                         if (--argc < 1) goto bad;
1128                         s_dcert_file= *(++argv);
1129                         }
1130                 else if (strcmp(*argv,"-dkeyform") == 0)
1131                         {
1132                         if (--argc < 1) goto bad;
1133                         s_dkey_format = str2fmt(*(++argv));
1134                         }
1135                 else if (strcmp(*argv,"-dpass") == 0)
1136                         {
1137                         if (--argc < 1) goto bad;
1138                         dpassarg = *(++argv);
1139                         }
1140                 else if (strcmp(*argv,"-dkey") == 0)
1141                         {
1142                         if (--argc < 1) goto bad;
1143                         s_dkey_file= *(++argv);
1144                         }
1145                 else if (strcmp(*argv,"-dcert_chain") == 0)
1146                         {
1147                         if (--argc < 1) goto bad;
1148                         s_dchain_file= *(++argv);
1149                         }
1150                 else if (strcmp(*argv,"-nocert") == 0)
1151                         {
1152                         nocert=1;
1153                         }
1154                 else if (strcmp(*argv,"-CApath") == 0)
1155                         {
1156                         if (--argc < 1) goto bad;
1157                         CApath= *(++argv);
1158                         }
1159                 else if (strcmp(*argv,"-chainCApath") == 0)
1160                         {
1161                         if (--argc < 1) goto bad;
1162                         chCApath= *(++argv);
1163                         }
1164                 else if (strcmp(*argv,"-verifyCApath") == 0)
1165                         {
1166                         if (--argc < 1) goto bad;
1167                         vfyCApath= *(++argv);
1168                         }
1169                 else if (strcmp(*argv,"-no_cache") == 0)
1170                         no_cache = 1;
1171                 else if (strcmp(*argv,"-ext_cache") == 0)
1172                         ext_cache = 1;
1173                 else if (strcmp(*argv,"-CRLform") == 0)
1174                         {
1175                         if (--argc < 1) goto bad;
1176                         crl_format = str2fmt(*(++argv));
1177                         }
1178                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1179                         {
1180                         if (badarg)
1181                                 goto bad;
1182                         continue;
1183                         }
1184                 else if (args_excert(&argv, &argc, &badarg, bio_err, &exc))
1185                         {
1186                         if (badarg)
1187                                 goto bad;
1188                         continue;
1189                         }
1190                 else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args))
1191                         {
1192                         if (badarg)
1193                                 goto bad;
1194                         continue;
1195                         }
1196                 else if (strcmp(*argv,"-verify_return_error") == 0)
1197                         verify_return_error = 1;
1198                 else if (strcmp(*argv,"-verify_quiet") == 0)
1199                         verify_quiet = 1;
1200                 else if (strcmp(*argv,"-build_chain") == 0)
1201                         build_chain = 1;
1202                 else if (strcmp(*argv,"-CAfile") == 0)
1203                         {
1204                         if (--argc < 1) goto bad;
1205                         CAfile= *(++argv);
1206                         }
1207                 else if (strcmp(*argv,"-chainCAfile") == 0)
1208                         {
1209                         if (--argc < 1) goto bad;
1210                         chCAfile= *(++argv);
1211                         }
1212                 else if (strcmp(*argv,"-verifyCAfile") == 0)
1213                         {
1214                         if (--argc < 1) goto bad;
1215                         vfyCAfile= *(++argv);
1216                         }
1217 #ifdef FIONBIO  
1218                 else if (strcmp(*argv,"-nbio") == 0)
1219                         { s_nbio=1; }
1220 #endif
1221                 else if (strcmp(*argv,"-nbio_test") == 0)
1222                         {
1223 #ifdef FIONBIO  
1224                         s_nbio=1;
1225 #endif
1226                         s_nbio_test=1;
1227                         }
1228                 else if (strcmp(*argv,"-ign_eof") == 0)
1229                         s_ign_eof=1;
1230                 else if (strcmp(*argv,"-no_ign_eof") == 0)
1231                         s_ign_eof=0;
1232                 else if (strcmp(*argv,"-debug") == 0)
1233                         { s_debug=1; }
1234 #ifndef OPENSSL_NO_TLSEXT
1235                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1236                         s_tlsextdebug=1;
1237                 else if (strcmp(*argv,"-status") == 0)
1238                         s_tlsextstatus=1;
1239                 else if (strcmp(*argv,"-status_verbose") == 0)
1240                         {
1241                         s_tlsextstatus=1;
1242                         tlscstatp.verbose = 1;
1243                         }
1244                 else if (!strcmp(*argv, "-status_timeout"))
1245                         {
1246                         s_tlsextstatus=1;
1247                         if (--argc < 1) goto bad;
1248                         tlscstatp.timeout = atoi(*(++argv));
1249                         }
1250                 else if (!strcmp(*argv, "-status_url"))
1251                         {
1252                         s_tlsextstatus=1;
1253                         if (--argc < 1) goto bad;
1254                         if (!OCSP_parse_url(*(++argv),
1255                                         &tlscstatp.host,
1256                                         &tlscstatp.port,
1257                                         &tlscstatp.path,
1258                                         &tlscstatp.use_ssl))
1259                                 {
1260                                 BIO_printf(bio_err, "Error parsing URL\n");
1261                                 goto bad;
1262                                 }
1263                         }
1264 #endif
1265                 else if (strcmp(*argv,"-msg") == 0)
1266                         { s_msg=1; }
1267                 else if (strcmp(*argv,"-msgfile") == 0)
1268                         {
1269                         if (--argc < 1) goto bad;
1270                         bio_s_msg = BIO_new_file(*(++argv), "w");
1271                         }
1272 #ifndef OPENSSL_NO_SSL_TRACE
1273                 else if (strcmp(*argv,"-trace") == 0)
1274                         { s_msg=2; }
1275 #endif
1276                 else if (strcmp(*argv,"-hack") == 0)
1277                         { hack=1; }
1278                 else if (strcmp(*argv,"-state") == 0)
1279                         { state=1; }
1280                 else if (strcmp(*argv,"-crlf") == 0)
1281                         { s_crlf=1; }
1282                 else if (strcmp(*argv,"-quiet") == 0)
1283                         { s_quiet=1; }
1284                 else if (strcmp(*argv,"-brief") == 0)
1285                         {
1286                         s_quiet=1;
1287                         s_brief=1;
1288                         verify_quiet=1;
1289                         }
1290                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1291                         { no_tmp_rsa=1; }
1292                 else if (strcmp(*argv,"-no_dhe") == 0)
1293                         { no_dhe=1; }
1294                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1295                         { no_ecdhe=1; }
1296                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1297                         { no_resume_ephemeral = 1; }
1298 #ifndef OPENSSL_NO_PSK
1299                 else if (strcmp(*argv,"-psk_hint") == 0)
1300                         {
1301                         if (--argc < 1) goto bad;
1302                         psk_identity_hint= *(++argv);
1303                         }
1304                 else if (strcmp(*argv,"-psk") == 0)
1305                         {
1306                         size_t i;
1307
1308                         if (--argc < 1) goto bad;
1309                         psk_key=*(++argv);
1310                         for (i=0; i<strlen(psk_key); i++)
1311                                 {
1312                                 if (isxdigit((unsigned char)psk_key[i]))
1313                                         continue;
1314                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1315                                 goto bad;
1316                                 }
1317                         }
1318 #endif
1319 #ifndef OPENSSL_NO_SRP
1320                 else if (strcmp(*argv, "-srpvfile") == 0)
1321                         {
1322                         if (--argc < 1) goto bad;
1323                         srp_verifier_file = *(++argv);
1324                         meth = TLSv1_server_method();
1325                         }
1326                 else if (strcmp(*argv, "-srpuserseed") == 0)
1327                         {
1328                         if (--argc < 1) goto bad;
1329                         srpuserseed = *(++argv);
1330                         meth = TLSv1_server_method();
1331                         }
1332 #endif
1333                 else if (strcmp(*argv,"-rev") == 0)
1334                         { rev=1; }
1335                 else if (strcmp(*argv,"-www") == 0)
1336                         { www=1; }
1337                 else if (strcmp(*argv,"-WWW") == 0)
1338                         { www=2; }
1339                 else if (strcmp(*argv,"-HTTP") == 0)
1340                         { www=3; }
1341 #ifndef OPENSSL_NO_SSL2
1342                 else if (strcmp(*argv,"-ssl2") == 0)
1343                         { meth=SSLv2_server_method(); }
1344 #endif
1345 #ifndef OPENSSL_NO_SSL3
1346                 else if (strcmp(*argv,"-ssl3") == 0)
1347                         { meth=SSLv3_server_method(); }
1348 #endif
1349 #ifndef OPENSSL_NO_TLS1
1350                 else if (strcmp(*argv,"-tls1") == 0)
1351                         { meth=TLSv1_server_method(); }
1352                 else if (strcmp(*argv,"-tls1_1") == 0)
1353                         { meth=TLSv1_1_server_method(); }
1354                 else if (strcmp(*argv,"-tls1_2") == 0)
1355                         { meth=TLSv1_2_server_method(); }
1356 #endif
1357 #ifndef OPENSSL_NO_DTLS1
1358                 else if (strcmp(*argv,"-dtls1") == 0)
1359                         { 
1360                         meth=DTLSv1_server_method();
1361                         socket_type = SOCK_DGRAM;
1362                         }
1363                 else if (strcmp(*argv,"-timeout") == 0)
1364                         enable_timeouts = 1;
1365                 else if (strcmp(*argv,"-mtu") == 0)
1366                         {
1367                         if (--argc < 1) goto bad;
1368                         socket_mtu = atol(*(++argv));
1369                         }
1370                 else if (strcmp(*argv, "-chain") == 0)
1371                         cert_chain = 1;
1372 #endif
1373                 else if (strcmp(*argv, "-id_prefix") == 0)
1374                         {
1375                         if (--argc < 1) goto bad;
1376                         session_id_prefix = *(++argv);
1377                         }
1378 #ifndef OPENSSL_NO_ENGINE
1379                 else if (strcmp(*argv,"-engine") == 0)
1380                         {
1381                         if (--argc < 1) goto bad;
1382                         engine_id= *(++argv);
1383                         }
1384 #endif
1385                 else if (strcmp(*argv,"-rand") == 0)
1386                         {
1387                         if (--argc < 1) goto bad;
1388                         inrand= *(++argv);
1389                         }
1390 #ifndef OPENSSL_NO_TLSEXT
1391                 else if (strcmp(*argv,"-servername") == 0)
1392                         {
1393                         if (--argc < 1) goto bad;
1394                         tlsextcbp.servername= *(++argv);
1395                         }
1396                 else if (strcmp(*argv,"-servername_fatal") == 0)
1397                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1398                 else if (strcmp(*argv,"-cert2") == 0)
1399                         {
1400                         if (--argc < 1) goto bad;
1401                         s_cert_file2= *(++argv);
1402                         }
1403                 else if (strcmp(*argv,"-key2") == 0)
1404                         {
1405                         if (--argc < 1) goto bad;
1406                         s_key_file2= *(++argv);
1407                         }
1408 # ifndef OPENSSL_NO_NEXTPROTONEG
1409                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1410                         {
1411                         if (--argc < 1) goto bad;
1412                         next_proto_neg_in = *(++argv);
1413                         }
1414 # endif
1415 #endif
1416 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1417                 else if (strcmp(*argv,"-jpake") == 0)
1418                         {
1419                         if (--argc < 1) goto bad;
1420                         jpake_secret = *(++argv);
1421                         }
1422 #endif
1423                 else if (strcmp(*argv,"-use_srtp") == 0)
1424                         {
1425                         if (--argc < 1) goto bad;
1426                         srtp_profiles = *(++argv);
1427                         }
1428                 else if (strcmp(*argv,"-keymatexport") == 0)
1429                         {
1430                         if (--argc < 1) goto bad;
1431                         keymatexportlabel= *(++argv);
1432                         }
1433                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1434                         {
1435                         if (--argc < 1) goto bad;
1436                         keymatexportlen=atoi(*(++argv));
1437                         if (keymatexportlen == 0) goto bad;
1438                         }
1439                 else
1440                         {
1441                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1442                         badop=1;
1443                         break;
1444                         }
1445                 argc--;
1446                 argv++;
1447                 }
1448         if (badop)
1449                 {
1450 bad:
1451                 sv_usage();
1452                 goto end;
1453                 }
1454
1455 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1456         if (jpake_secret)
1457                 {
1458                 if (psk_key)
1459                         {
1460                         BIO_printf(bio_err,
1461                                    "Can't use JPAKE and PSK together\n");
1462                         goto end;
1463                         }
1464                 psk_identity = "JPAKE";
1465                 if (cipher)
1466                         {
1467                         BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1468                         goto end;
1469                         }
1470                 cipher = "PSK";
1471                 }
1472
1473 #endif
1474
1475         SSL_load_error_strings();
1476         OpenSSL_add_ssl_algorithms();
1477
1478 #ifndef OPENSSL_NO_ENGINE
1479         e = setup_engine(bio_err, engine_id, 1);
1480 #endif
1481
1482         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1483                 {
1484                 BIO_printf(bio_err, "Error getting password\n");
1485                 goto end;
1486                 }
1487
1488
1489         if (s_key_file == NULL)
1490                 s_key_file = s_cert_file;
1491 #ifndef OPENSSL_NO_TLSEXT
1492         if (s_key_file2 == NULL)
1493                 s_key_file2 = s_cert_file2;
1494 #endif
1495
1496         if (!load_excert(&exc, bio_err))
1497                 goto end;
1498
1499         if (nocert == 0)
1500                 {
1501                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1502                        "server certificate private key file");
1503                 if (!s_key)
1504                         {
1505                         ERR_print_errors(bio_err);
1506                         goto end;
1507                         }
1508
1509                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1510                         NULL, e, "server certificate file");
1511
1512                 if (!s_cert)
1513                         {
1514                         ERR_print_errors(bio_err);
1515                         goto end;
1516                         }
1517                 if (s_chain_file)
1518                         {
1519                         s_chain = load_certs(bio_err, s_chain_file,FORMAT_PEM,
1520                                         NULL, e, "server certificate chain");
1521                         if (!s_chain)
1522                                 goto end;
1523                         }
1524
1525 #ifndef OPENSSL_NO_TLSEXT
1526                 if (tlsextcbp.servername) 
1527                         {
1528                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1529                                 "second server certificate private key file");
1530                         if (!s_key2)
1531                                 {
1532                                 ERR_print_errors(bio_err);
1533                                 goto end;
1534                                 }
1535                         
1536                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1537                                 NULL, e, "second server certificate file");
1538                         
1539                         if (!s_cert2)
1540                                 {
1541                                 ERR_print_errors(bio_err);
1542                                 goto end;
1543                                 }
1544                         }
1545 #endif /* OPENSSL_NO_TLSEXT */
1546                 }
1547
1548 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 
1549         if (next_proto_neg_in)
1550                 {
1551                 unsigned short len;
1552                 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1553                 if (next_proto.data == NULL)
1554                         goto end;
1555                 next_proto.len = len;
1556                 }
1557         else
1558                 {
1559                 next_proto.data = NULL;
1560                 }
1561 #endif
1562
1563         if (crl_file)
1564                 {
1565                 X509_CRL *crl;
1566                 crl = load_crl(crl_file, crl_format);
1567                 if (!crl)
1568                         {
1569                         BIO_puts(bio_err, "Error loading CRL\n");
1570                         ERR_print_errors(bio_err);
1571                         goto end;
1572                         }
1573                 crls = sk_X509_CRL_new_null();
1574                 if (!crls || !sk_X509_CRL_push(crls, crl))
1575                         {
1576                         BIO_puts(bio_err, "Error adding CRL\n");
1577                         ERR_print_errors(bio_err);
1578                         X509_CRL_free(crl);
1579                         goto end;
1580                         }
1581                 }
1582
1583
1584         if (s_dcert_file)
1585                 {
1586
1587                 if (s_dkey_file == NULL)
1588                         s_dkey_file = s_dcert_file;
1589
1590                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1591                                 0, dpass, e,
1592                                "second certificate private key file");
1593                 if (!s_dkey)
1594                         {
1595                         ERR_print_errors(bio_err);
1596                         goto end;
1597                         }
1598
1599                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1600                                 NULL, e, "second server certificate file");
1601
1602                 if (!s_dcert)
1603                         {
1604                         ERR_print_errors(bio_err);
1605                         goto end;
1606                         }
1607                 if (s_dchain_file)
1608                         {
1609                         s_dchain = load_certs(bio_err, s_dchain_file,FORMAT_PEM,
1610                                 NULL, e, "second server certificate chain");
1611                         if (!s_dchain)
1612                                 goto end;
1613                         }
1614
1615                 }
1616
1617         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1618                 && !RAND_status())
1619                 {
1620                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1621                 }
1622         if (inrand != NULL)
1623                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1624                         app_RAND_load_files(inrand));
1625
1626         if (bio_s_out == NULL)
1627                 {
1628                 if (s_quiet && !s_debug)
1629                         {
1630                         bio_s_out=BIO_new(BIO_s_null());
1631                         if (s_msg && !bio_s_msg)
1632                                 bio_s_msg=BIO_new_fp(stdout,BIO_NOCLOSE);
1633                         }
1634                 else
1635                         {
1636                         if (bio_s_out == NULL)
1637                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1638                         }
1639                 }
1640
1641 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1642         if (nocert)
1643 #endif
1644                 {
1645                 s_cert_file=NULL;
1646                 s_key_file=NULL;
1647                 s_dcert_file=NULL;
1648                 s_dkey_file=NULL;
1649 #ifndef OPENSSL_NO_TLSEXT
1650                 s_cert_file2=NULL;
1651                 s_key_file2=NULL;
1652 #endif
1653                 }
1654
1655         ctx=SSL_CTX_new(meth);
1656         if (ctx == NULL)
1657                 {
1658                 ERR_print_errors(bio_err);
1659                 goto end;
1660                 }
1661         if (session_id_prefix)
1662                 {
1663                 if(strlen(session_id_prefix) >= 32)
1664                         BIO_printf(bio_err,
1665 "warning: id_prefix is too long, only one new session will be possible\n");
1666                 else if(strlen(session_id_prefix) >= 16)
1667                         BIO_printf(bio_err,
1668 "warning: id_prefix is too long if you use SSLv2\n");
1669                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1670                         {
1671                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1672                         ERR_print_errors(bio_err);
1673                         goto end;
1674                         }
1675                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1676                 }
1677         SSL_CTX_set_quiet_shutdown(ctx,1);
1678         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1679         if (exc) ssl_ctx_set_excert(ctx, exc);
1680         /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1681          * Setting read ahead solves this problem.
1682          */
1683         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1684
1685         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1686         if (no_cache)
1687                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1688         else if (ext_cache)
1689                 init_session_cache_ctx(ctx);
1690         else
1691                 SSL_CTX_sess_set_cache_size(ctx,128);
1692
1693         if (srtp_profiles != NULL)
1694                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1695
1696 #if 0
1697         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1698 #endif
1699
1700 #if 0
1701         if (s_cert_file == NULL)
1702                 {
1703                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1704                 goto end;
1705                 }
1706 #endif
1707
1708         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1709                 (!SSL_CTX_set_default_verify_paths(ctx)))
1710                 {
1711                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1712                 ERR_print_errors(bio_err);
1713                 /* goto end; */
1714                 }
1715         if (vpm)
1716                 SSL_CTX_set1_param(ctx, vpm);
1717
1718         ssl_ctx_add_crls(ctx, crls);
1719
1720         if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, no_ecdhe))
1721                 goto end;
1722
1723         if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile, crls))
1724                 {
1725                 BIO_printf(bio_err, "Error loading store locations\n");
1726                 ERR_print_errors(bio_err);
1727                 goto end;
1728                 }
1729
1730 #ifndef OPENSSL_NO_TLSEXT
1731         if (s_cert2)
1732                 {
1733                 ctx2=SSL_CTX_new(meth);
1734                 if (ctx2 == NULL)
1735                         {
1736                         ERR_print_errors(bio_err);
1737                         goto end;
1738                         }
1739                 }
1740         
1741         if (ctx2)
1742                 {
1743                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1744
1745                 if (session_id_prefix)
1746                         {
1747                         if(strlen(session_id_prefix) >= 32)
1748                                 BIO_printf(bio_err,
1749                                         "warning: id_prefix is too long, only one new session will be possible\n");
1750                         else if(strlen(session_id_prefix) >= 16)
1751                                 BIO_printf(bio_err,
1752                                         "warning: id_prefix is too long if you use SSLv2\n");
1753                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1754                                 {
1755                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1756                                 ERR_print_errors(bio_err);
1757                                 goto end;
1758                                 }
1759                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1760                         }
1761                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1762                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1763                 if (exc) ssl_ctx_set_excert(ctx2, exc);
1764                 /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1765                  * Setting read ahead solves this problem.
1766                  */
1767                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1768
1769                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1770
1771                 if (no_cache)
1772                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1773                 else if (ext_cache)
1774                         init_session_cache_ctx(ctx2);
1775                 else
1776                         SSL_CTX_sess_set_cache_size(ctx2,128);
1777
1778                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1779                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1780                         {
1781                         ERR_print_errors(bio_err);
1782                         }
1783                 if (vpm)
1784                         SSL_CTX_set1_param(ctx2, vpm);
1785
1786                 ssl_ctx_add_crls(ctx2, crls);
1787
1788                 if (!args_ssl_call(ctx2, bio_err, cctx, ssl_args, no_ecdhe))
1789                         goto end;
1790                 }
1791
1792 # ifndef OPENSSL_NO_NEXTPROTONEG
1793         if (next_proto.data)
1794                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1795 # endif
1796 #endif 
1797
1798 #ifndef OPENSSL_NO_DH
1799         if (!no_dhe)
1800                 {
1801                 DH *dh=NULL;
1802
1803                 if (dhfile)
1804                         dh = load_dh_param(dhfile);
1805                 else if (s_cert_file)
1806                         dh = load_dh_param(s_cert_file);
1807
1808                 if (dh != NULL)
1809                         {
1810                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1811                         }
1812                 else
1813                         {
1814                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1815                         dh=get_dh512();
1816                         }
1817                 (void)BIO_flush(bio_s_out);
1818
1819                 SSL_CTX_set_tmp_dh(ctx,dh);
1820 #ifndef OPENSSL_NO_TLSEXT
1821                 if (ctx2)
1822                         {
1823                         if (!dhfile)
1824                                 { 
1825                                 DH *dh2=load_dh_param(s_cert_file2);
1826                                 if (dh2 != NULL)
1827                                         {
1828                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1829                                         (void)BIO_flush(bio_s_out);
1830
1831                                         DH_free(dh);
1832                                         dh = dh2;
1833                                         }
1834                                 }
1835                         SSL_CTX_set_tmp_dh(ctx2,dh);
1836                         }
1837 #endif
1838                 DH_free(dh);
1839                 }
1840 #endif
1841
1842         if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain))
1843                 goto end;
1844 #ifndef OPENSSL_NO_TLSEXT
1845         if (s_authz_file != NULL && !SSL_CTX_use_authz_file(ctx, s_authz_file))
1846                 goto end;
1847 #endif
1848 #ifndef OPENSSL_NO_TLSEXT
1849         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2, NULL, build_chain))
1850                 goto end; 
1851 #endif
1852         if (s_dcert != NULL)
1853                 {
1854                 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain))
1855                         goto end;
1856                 }
1857
1858 #ifndef OPENSSL_NO_RSA
1859 #if 1
1860         if (!no_tmp_rsa)
1861                 {
1862                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1863 #ifndef OPENSSL_NO_TLSEXT
1864                 if (ctx2) 
1865                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1866 #endif          
1867                 }
1868 #else
1869         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1870                 {
1871                 RSA *rsa;
1872
1873                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1874                 BIO_flush(bio_s_out);
1875
1876                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1877
1878                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1879                         {
1880                         ERR_print_errors(bio_err);
1881                         goto end;
1882                         }
1883 #ifndef OPENSSL_NO_TLSEXT
1884                         if (ctx2)
1885                                 {
1886                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1887                                         {
1888                                         ERR_print_errors(bio_err);
1889                                         goto end;
1890                                         }
1891                                 }
1892 #endif
1893                 RSA_free(rsa);
1894                 BIO_printf(bio_s_out,"\n");
1895                 }
1896 #endif
1897 #endif
1898
1899         if (no_resume_ephemeral)
1900                 {
1901                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
1902 #ifndef OPENSSL_NO_TLSEXT
1903                 if (ctx2)
1904                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
1905 #endif
1906                 }
1907
1908 #ifndef OPENSSL_NO_PSK
1909 #ifdef OPENSSL_NO_JPAKE
1910         if (psk_key != NULL)
1911 #else
1912         if (psk_key != NULL || jpake_secret)
1913 #endif
1914                 {
1915                 if (s_debug)
1916                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
1917                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1918                 }
1919
1920         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1921                 {
1922                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1923                 ERR_print_errors(bio_err);
1924                 goto end;
1925                 }
1926 #endif
1927
1928         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1929         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1930                 sizeof s_server_session_id_context);
1931
1932         /* Set DTLS cookie generation and verification callbacks */
1933         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1934         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1935
1936 #ifndef OPENSSL_NO_TLSEXT
1937         if (ctx2)
1938                 {
1939                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1940                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1941                         sizeof s_server_session_id_context);
1942
1943                 tlsextcbp.biodebug = bio_s_out;
1944                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1945                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1946                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1947                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1948                 }
1949 #endif
1950
1951 #ifndef OPENSSL_NO_SRP
1952         if (srp_verifier_file != NULL)
1953                 {
1954                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
1955                 srp_callback_parm.user = NULL;
1956                 srp_callback_parm.login = NULL;
1957                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
1958                         {
1959                         BIO_printf(bio_err,
1960                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1961                                    srp_verifier_file, ret);
1962                                 goto end;
1963                         }
1964                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
1965                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);                        
1966                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1967                 }
1968         else
1969 #endif
1970         if (CAfile != NULL)
1971                 {
1972                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1973 #ifndef OPENSSL_NO_TLSEXT
1974                 if (ctx2) 
1975                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1976 #endif
1977                 }
1978
1979         BIO_printf(bio_s_out,"ACCEPT\n");
1980         (void)BIO_flush(bio_s_out);
1981         if (rev)
1982                 do_server(port,socket_type,&accept_socket,rev_body, context, naccept);
1983         else if (www)
1984                 do_server(port,socket_type,&accept_socket,www_body, context, naccept);
1985         else
1986                 do_server(port,socket_type,&accept_socket,sv_body, context, naccept);
1987         print_stats(bio_s_out,ctx);
1988         ret=0;
1989 end:
1990         if (ctx != NULL) SSL_CTX_free(ctx);
1991         if (s_cert)
1992                 X509_free(s_cert);
1993         if (crls)
1994                 sk_X509_CRL_pop_free(crls, X509_CRL_free);
1995         if (s_dcert)
1996                 X509_free(s_dcert);
1997         if (s_key)
1998                 EVP_PKEY_free(s_key);
1999         if (s_dkey)
2000                 EVP_PKEY_free(s_dkey);
2001         if (s_chain)
2002                 sk_X509_pop_free(s_chain, X509_free);
2003         if (s_dchain)
2004                 sk_X509_pop_free(s_dchain, X509_free);
2005         if (pass)
2006                 OPENSSL_free(pass);
2007         if (dpass)
2008                 OPENSSL_free(dpass);
2009         if (vpm)
2010                 X509_VERIFY_PARAM_free(vpm);
2011         free_sessions();
2012 #ifndef OPENSSL_NO_TLSEXT
2013         if (tlscstatp.host)
2014                 OPENSSL_free(tlscstatp.host);
2015         if (tlscstatp.port)
2016                 OPENSSL_free(tlscstatp.port);
2017         if (tlscstatp.path)
2018                 OPENSSL_free(tlscstatp.path);
2019         if (ctx2 != NULL) SSL_CTX_free(ctx2);
2020         if (s_cert2)
2021                 X509_free(s_cert2);
2022         if (s_key2)
2023                 EVP_PKEY_free(s_key2);
2024         if (authz_in != NULL)
2025                 BIO_free(authz_in);
2026 #endif
2027         ssl_excert_free(exc);
2028         if (ssl_args)
2029                 sk_OPENSSL_STRING_free(ssl_args);
2030         if (cctx)
2031                 SSL_CONF_CTX_free(cctx);
2032         if (bio_s_out != NULL)
2033                 {
2034         BIO_free(bio_s_out);
2035                 bio_s_out=NULL;
2036                 }
2037         if (bio_s_msg != NULL)
2038                 {
2039                 BIO_free(bio_s_msg);
2040                 bio_s_msg = NULL;
2041                 }
2042         apps_shutdown();
2043         OPENSSL_EXIT(ret);
2044         }
2045
2046 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
2047         {
2048         BIO_printf(bio,"%4ld items in the session cache\n",
2049                 SSL_CTX_sess_number(ssl_ctx));
2050         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
2051                 SSL_CTX_sess_connect(ssl_ctx));
2052         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
2053                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
2054         BIO_printf(bio,"%4ld client connects that finished\n",
2055                 SSL_CTX_sess_connect_good(ssl_ctx));
2056         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
2057                 SSL_CTX_sess_accept(ssl_ctx));
2058         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
2059                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
2060         BIO_printf(bio,"%4ld server accepts that finished\n",
2061                 SSL_CTX_sess_accept_good(ssl_ctx));
2062         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
2063         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
2064         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
2065         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
2066         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
2067                 SSL_CTX_sess_cache_full(ssl_ctx),
2068                 SSL_CTX_sess_get_cache_size(ssl_ctx));
2069         }
2070
2071 static int sv_body(char *hostname, int s, unsigned char *context)
2072         {
2073         char *buf=NULL;
2074         fd_set readfds;
2075         int ret=1,width;
2076         int k,i;
2077         unsigned long l;
2078         SSL *con=NULL;
2079         BIO *sbio;
2080 #ifndef OPENSSL_NO_KRB5
2081         KSSL_CTX *kctx;
2082 #endif
2083         struct timeval timeout;
2084 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2085         struct timeval tv;
2086 #else
2087         struct timeval *timeoutp;
2088 #endif
2089
2090         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
2091                 {
2092                 BIO_printf(bio_err,"out of memory\n");
2093                 goto err;
2094                 }
2095 #ifdef FIONBIO  
2096         if (s_nbio)
2097                 {
2098                 unsigned long sl=1;
2099
2100                 if (!s_quiet)
2101                         BIO_printf(bio_err,"turning on non blocking io\n");
2102                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2103                         ERR_print_errors(bio_err);
2104                 }
2105 #endif
2106
2107         if (con == NULL) {
2108                 con=SSL_new(ctx);
2109 #ifndef OPENSSL_NO_TLSEXT
2110         if (s_tlsextdebug)
2111                 {
2112                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2113                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2114                 }
2115         if (s_tlsextstatus)
2116                 {
2117                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2118                 tlscstatp.err = bio_err;
2119                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2120                 }
2121 #endif
2122 #ifndef OPENSSL_NO_KRB5
2123                 if ((kctx = kssl_ctx_new()) != NULL)
2124                         {
2125                         SSL_set0_kssl_ctx(con, kctx);
2126                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2127                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2128                         }
2129 #endif  /* OPENSSL_NO_KRB5 */
2130                 if(context)
2131                       SSL_set_session_id_context(con, context,
2132                                                  strlen((char *)context));
2133         }
2134         SSL_clear(con);
2135 #if 0
2136 #ifdef TLSEXT_TYPE_opaque_prf_input
2137         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2138 #endif
2139 #endif
2140
2141         if (SSL_version(con) == DTLS1_VERSION)
2142                 {
2143
2144                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2145
2146                 if (enable_timeouts)
2147                         {
2148                         timeout.tv_sec = 0;
2149                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2150                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2151                         
2152                         timeout.tv_sec = 0;
2153                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2154                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2155                         }
2156
2157                 if (socket_mtu > 28)
2158                         {
2159                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2160                         SSL_set_mtu(con, socket_mtu - 28);
2161                         }
2162                 else
2163                         /* want to do MTU discovery */
2164                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2165
2166         /* turn on cookie exchange */
2167         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2168                 }
2169         else
2170                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2171
2172         if (s_nbio_test)
2173                 {
2174                 BIO *test;
2175
2176                 test=BIO_new(BIO_f_nbio_test());
2177                 sbio=BIO_push(test,sbio);
2178                 }
2179 #ifndef OPENSSL_NO_JPAKE
2180         if(jpake_secret)
2181                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2182 #endif
2183
2184         SSL_set_bio(con,sbio,sbio);
2185         SSL_set_accept_state(con);
2186         /* SSL_set_fd(con,s); */
2187
2188         if (s_debug)
2189                 {
2190                 SSL_set_debug(con, 1);
2191                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2192                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2193                 }
2194         if (s_msg)
2195                 {
2196 #ifndef OPENSSL_NO_SSL_TRACE
2197                 if (s_msg == 2)
2198                         SSL_set_msg_callback(con, SSL_trace);
2199                 else
2200 #endif
2201                         SSL_set_msg_callback(con, msg_cb);
2202                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2203                 }
2204 #ifndef OPENSSL_NO_TLSEXT
2205         if (s_tlsextdebug)
2206                 {
2207                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2208                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2209                 }
2210 #endif
2211
2212         width=s+1;
2213         for (;;)
2214                 {
2215                 int read_from_terminal;
2216                 int read_from_sslcon;
2217
2218                 read_from_terminal = 0;
2219                 read_from_sslcon = SSL_pending(con);
2220
2221                 if (!read_from_sslcon)
2222                         {
2223                         FD_ZERO(&readfds);
2224 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2225                         openssl_fdset(fileno(stdin),&readfds);
2226 #endif
2227                         openssl_fdset(s,&readfds);
2228                         /* Note: under VMS with SOCKETSHR the second parameter is
2229                          * currently of type (int *) whereas under other systems
2230                          * it is (void *) if you don't have a cast it will choke
2231                          * the compiler: if you do have a cast then you can either
2232                          * go for (int *) or (void *).
2233                          */
2234 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2235                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2236                          * on sockets. As a workaround we timeout the select every
2237                          * second and check for any keypress. In a proper Windows
2238                          * application we wouldn't do this because it is inefficient.
2239                          */
2240                         tv.tv_sec = 1;
2241                         tv.tv_usec = 0;
2242                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2243                         if((i < 0) || (!i && !_kbhit() ) )continue;
2244                         if(_kbhit())
2245                                 read_from_terminal = 1;
2246 #elif defined(OPENSSL_SYS_BEOS_R5)
2247                         /* Under BeOS-R5 the situation is similar to DOS */
2248                         tv.tv_sec = 1;
2249                         tv.tv_usec = 0;
2250                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2251                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2252                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2253                                 continue;
2254                         if (read(fileno(stdin), buf, 0) >= 0)
2255                                 read_from_terminal = 1;
2256                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2257 #else
2258                         if ((SSL_version(con) == DTLS1_VERSION) &&
2259                                 DTLSv1_get_timeout(con, &timeout))
2260                                 timeoutp = &timeout;
2261                         else
2262                                 timeoutp = NULL;
2263
2264                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2265
2266                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2267                                 {
2268                                 BIO_printf(bio_err,"TIMEOUT occured\n");
2269                                 }
2270
2271                         if (i <= 0) continue;
2272                         if (FD_ISSET(fileno(stdin),&readfds))
2273                                 read_from_terminal = 1;
2274 #endif
2275                         if (FD_ISSET(s,&readfds))
2276                                 read_from_sslcon = 1;
2277                         }
2278                 if (read_from_terminal)
2279                         {
2280                         if (s_crlf)
2281                                 {
2282                                 int j, lf_num;
2283
2284                                 i=raw_read_stdin(buf, bufsize/2);
2285                                 lf_num = 0;
2286                                 /* both loops are skipped when i <= 0 */
2287                                 for (j = 0; j < i; j++)
2288                                         if (buf[j] == '\n')
2289                                                 lf_num++;
2290                                 for (j = i-1; j >= 0; j--)
2291                                         {
2292                                         buf[j+lf_num] = buf[j];
2293                                         if (buf[j] == '\n')
2294                                                 {
2295                                                 lf_num--;
2296                                                 i++;
2297                                                 buf[j+lf_num] = '\r';
2298                                                 }
2299                                         }
2300                                 assert(lf_num == 0);
2301                                 }
2302                         else
2303                                 i=raw_read_stdin(buf,bufsize);
2304                         if (!s_quiet && !s_brief)
2305                                 {
2306                                 if ((i <= 0) || (buf[0] == 'Q'))
2307                                         {
2308                                         BIO_printf(bio_s_out,"DONE\n");
2309                                         SHUTDOWN(s);
2310                                         close_accept_socket();
2311                                         ret= -11;
2312                                         goto err;
2313                                         }
2314                                 if ((i <= 0) || (buf[0] == 'q'))
2315                                         {
2316                                         BIO_printf(bio_s_out,"DONE\n");
2317                                         if (SSL_version(con) != DTLS1_VERSION)
2318                         SHUTDOWN(s);
2319         /*                              close_accept_socket();
2320                                         ret= -11;*/
2321                                         goto err;
2322                                         }
2323
2324 #ifndef OPENSSL_NO_HEARTBEATS
2325                                 if ((buf[0] == 'B') &&
2326                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2327                                         {
2328                                         BIO_printf(bio_err,"HEARTBEATING\n");
2329                                         SSL_heartbeat(con);
2330                                         i=0;
2331                                         continue;
2332                                         }
2333 #endif
2334                                 if ((buf[0] == 'r') && 
2335                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2336                                         {
2337                                         SSL_renegotiate(con);
2338                                         i=SSL_do_handshake(con);
2339                                         printf("SSL_do_handshake -> %d\n",i);
2340                                         i=0; /*13; */
2341                                         continue;
2342                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2343                                         }
2344                                 if ((buf[0] == 'R') &&
2345                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2346                                         {
2347                                         SSL_set_verify(con,
2348                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2349                                         SSL_renegotiate(con);
2350                                         i=SSL_do_handshake(con);
2351                                         printf("SSL_do_handshake -> %d\n",i);
2352                                         i=0; /* 13; */
2353                                         continue;
2354                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2355                                         }
2356                                 if (buf[0] == 'P')
2357                                         {
2358                                         static const char *str="Lets print some clear text\n";
2359                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2360                                         }
2361                                 if (buf[0] == 'S')
2362                                         {
2363                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2364                                         }
2365                                 }
2366 #ifdef CHARSET_EBCDIC
2367                         ebcdic2ascii(buf,buf,i);
2368 #endif
2369                         l=k=0;
2370                         for (;;)
2371                                 {
2372                                 /* should do a select for the write */
2373 #ifdef RENEG
2374 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2375 #endif
2376                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2377 #ifndef OPENSSL_NO_SRP
2378                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2379                                         {
2380                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2381                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2382                                         if (srp_callback_parm.user) 
2383                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2384                                         else 
2385                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2386                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2387                                         }
2388 #endif
2389                                 switch (SSL_get_error(con,k))
2390                                         {
2391                                 case SSL_ERROR_NONE:
2392                                         break;
2393                                 case SSL_ERROR_WANT_WRITE:
2394                                 case SSL_ERROR_WANT_READ:
2395                                 case SSL_ERROR_WANT_X509_LOOKUP:
2396                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2397                                         break;
2398                                 case SSL_ERROR_SYSCALL:
2399                                 case SSL_ERROR_SSL:
2400                                         BIO_printf(bio_s_out,"ERROR\n");
2401                                         ERR_print_errors(bio_err);
2402                                         ret=1;
2403                                         goto err;
2404                                         /* break; */
2405                                 case SSL_ERROR_ZERO_RETURN:
2406                                         BIO_printf(bio_s_out,"DONE\n");
2407                                         ret=1;
2408                                         goto err;
2409                                         }
2410                                 l+=k;
2411                                 i-=k;
2412                                 if (i <= 0) break;
2413                                 }
2414                         }
2415                 if (read_from_sslcon)
2416                         {
2417                         if (!SSL_is_init_finished(con))
2418                                 {
2419                                 i=init_ssl_connection(con);
2420                                 
2421                                 if (i < 0)
2422                                         {
2423                                         ret=0;
2424                                         goto err;
2425                                         }
2426                                 else if (i == 0)
2427                                         {
2428                                         ret=1;
2429                                         goto err;
2430                                         }
2431                                 }
2432                         else
2433                                 {
2434 again:  
2435                                 i=SSL_read(con,(char *)buf,bufsize);
2436 #ifndef OPENSSL_NO_SRP
2437                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2438                                         {
2439                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2440                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2441                                         if (srp_callback_parm.user) 
2442                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2443                                         else 
2444                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2445                                         i=SSL_read(con,(char *)buf,bufsize);
2446                                         }
2447 #endif
2448                                 switch (SSL_get_error(con,i))
2449                                         {
2450                                 case SSL_ERROR_NONE:
2451 #ifdef CHARSET_EBCDIC
2452                                         ascii2ebcdic(buf,buf,i);
2453 #endif
2454                                         raw_write_stdout(buf,
2455                                                 (unsigned int)i);
2456                                         if (SSL_pending(con)) goto again;
2457                                         break;
2458                                 case SSL_ERROR_WANT_WRITE:
2459                                 case SSL_ERROR_WANT_READ:
2460                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2461                                         break;
2462                                 case SSL_ERROR_SYSCALL:
2463                                 case SSL_ERROR_SSL:
2464                                         BIO_printf(bio_s_out,"ERROR\n");
2465                                         ERR_print_errors(bio_err);
2466                                         ret=1;
2467                                         goto err;
2468                                 case SSL_ERROR_ZERO_RETURN:
2469                                         BIO_printf(bio_s_out,"DONE\n");
2470                                         ret=1;
2471                                         goto err;
2472                                         }
2473                                 }
2474                         }
2475                 }
2476 err:
2477         if (con != NULL)
2478                 {
2479                 BIO_printf(bio_s_out,"shutting down SSL\n");
2480 #if 1
2481                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2482 #else
2483                 SSL_shutdown(con);
2484 #endif
2485                 SSL_free(con);
2486                 }
2487         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2488         if (buf != NULL)
2489                 {
2490                 OPENSSL_cleanse(buf,bufsize);
2491                 OPENSSL_free(buf);
2492                 }
2493         if (ret >= 0)
2494                 BIO_printf(bio_s_out,"ACCEPT\n");
2495         return(ret);
2496         }
2497
2498 static void close_accept_socket(void)
2499         {
2500         BIO_printf(bio_err,"shutdown accept socket\n");
2501         if (accept_socket >= 0)
2502                 {
2503                 SHUTDOWN2(accept_socket);
2504                 }
2505         }
2506
2507 static int init_ssl_connection(SSL *con)
2508         {
2509         int i;
2510         const char *str;
2511         X509 *peer;
2512         long verify_error;
2513         MS_STATIC char buf[BUFSIZ];
2514 #ifndef OPENSSL_NO_KRB5
2515         char *client_princ;
2516 #endif
2517 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2518         const unsigned char *next_proto_neg;
2519         unsigned next_proto_neg_len;
2520 #endif
2521         unsigned char *exportedkeymat;
2522
2523
2524         i=SSL_accept(con);
2525 #ifndef OPENSSL_NO_SRP
2526         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2527                 {
2528                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2529                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2530                         if (srp_callback_parm.user) 
2531                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2532                         else 
2533                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2534                         i=SSL_accept(con);
2535                 }
2536 #endif
2537         if (i <= 0)
2538                 {
2539                 if (BIO_sock_should_retry(i))
2540                         {
2541                         BIO_printf(bio_s_out,"DELAY\n");
2542                         return(1);
2543                         }
2544
2545                 BIO_printf(bio_err,"ERROR\n");
2546                 verify_error=SSL_get_verify_result(con);
2547                 if (verify_error != X509_V_OK)
2548                         {
2549                         BIO_printf(bio_err,"verify error:%s\n",
2550                                 X509_verify_cert_error_string(verify_error));
2551                         }
2552                 /* Always print any error messages */
2553                 ERR_print_errors(bio_err);
2554                 return(0);
2555                 }
2556
2557         if (s_brief)
2558                 print_ssl_summary(bio_err, con);
2559
2560         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2561
2562         peer=SSL_get_peer_certificate(con);
2563         if (peer != NULL)
2564                 {
2565                 BIO_printf(bio_s_out,"Client certificate\n");
2566                 PEM_write_bio_X509(bio_s_out,peer);
2567                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2568                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2569                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2570                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2571                 X509_free(peer);
2572                 }
2573
2574         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2575                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2576         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2577         ssl_print_sigalgs(bio_s_out, con);
2578         ssl_print_point_formats(bio_s_out, con);
2579         ssl_print_curves(bio_s_out, con, 0);
2580         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2581
2582 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2583         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2584         if (next_proto_neg)
2585                 {
2586                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2587                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2588                 BIO_printf(bio_s_out, "\n");
2589                 }
2590 #endif
2591         {
2592         SRTP_PROTECTION_PROFILE *srtp_profile
2593           = SSL_get_selected_srtp_profile(con);
2594
2595         if(srtp_profile)
2596                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2597                            srtp_profile->name);
2598         }
2599         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2600         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2601                 TLS1_FLAGS_TLS_PADDING_BUG)
2602                 BIO_printf(bio_s_out,
2603                            "Peer has incorrect TLSv1 block padding\n");
2604 #ifndef OPENSSL_NO_KRB5
2605         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2606         if (client_princ != NULL)
2607                 {
2608                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2609                                                                 client_princ);
2610                 }
2611 #endif /* OPENSSL_NO_KRB5 */
2612         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2613                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2614         if (keymatexportlabel != NULL)
2615                 {
2616                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2617                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2618                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2619                            keymatexportlen);
2620                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2621                 if (exportedkeymat != NULL)
2622                         {
2623                         if (!SSL_export_keying_material(con, exportedkeymat,
2624                                                         keymatexportlen,
2625                                                         keymatexportlabel,
2626                                                         strlen(keymatexportlabel),
2627                                                         NULL, 0, 0))
2628                                 {
2629                                 BIO_printf(bio_s_out, "    Error\n");
2630                                 }
2631                         else
2632                                 {
2633                                 BIO_printf(bio_s_out, "    Keying material: ");
2634                                 for (i=0; i<keymatexportlen; i++)
2635                                         BIO_printf(bio_s_out, "%02X",
2636                                                    exportedkeymat[i]);
2637                                 BIO_printf(bio_s_out, "\n");
2638                                 }
2639                         OPENSSL_free(exportedkeymat);
2640                         }
2641                 }
2642
2643         return(1);
2644         }
2645
2646 #ifndef OPENSSL_NO_DH
2647 static DH *load_dh_param(const char *dhfile)
2648         {
2649         DH *ret=NULL;
2650         BIO *bio;
2651
2652         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2653                 goto err;
2654         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2655 err:
2656         if (bio != NULL) BIO_free(bio);
2657         return(ret);
2658         }
2659 #endif
2660
2661 #if 0
2662 static int load_CA(SSL_CTX *ctx, char *file)
2663         {
2664         FILE *in;
2665         X509 *x=NULL;
2666
2667         if ((in=fopen(file,"r")) == NULL)
2668                 return(0);
2669
2670         for (;;)
2671                 {
2672                 if (PEM_read_X509(in,&x,NULL) == NULL)
2673                         break;
2674                 SSL_CTX_add_client_CA(ctx,x);
2675                 }
2676         if (x != NULL) X509_free(x);
2677         fclose(in);
2678         return(1);
2679         }
2680 #endif
2681
2682 static int www_body(char *hostname, int s, unsigned char *context)
2683         {
2684         char *buf=NULL;
2685         int ret=1;
2686         int i,j,k,dot;
2687         SSL *con;
2688         const SSL_CIPHER *c;
2689         BIO *io,*ssl_bio,*sbio;
2690 #ifndef OPENSSL_NO_KRB5
2691         KSSL_CTX *kctx;
2692 #endif
2693
2694         buf=OPENSSL_malloc(bufsize);
2695         if (buf == NULL) return(0);
2696         io=BIO_new(BIO_f_buffer());
2697         ssl_bio=BIO_new(BIO_f_ssl());
2698         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2699
2700 #ifdef FIONBIO  
2701         if (s_nbio)
2702                 {
2703                 unsigned long sl=1;
2704
2705                 if (!s_quiet)
2706                         BIO_printf(bio_err,"turning on non blocking io\n");
2707                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2708                         ERR_print_errors(bio_err);
2709                 }
2710 #endif
2711
2712         /* lets make the output buffer a reasonable size */
2713         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2714
2715         if ((con=SSL_new(ctx)) == NULL) goto err;
2716 #ifndef OPENSSL_NO_TLSEXT
2717                 if (s_tlsextdebug)
2718                         {
2719                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2720                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2721                         }
2722 #endif
2723 #ifndef OPENSSL_NO_KRB5
2724         if ((kctx = kssl_ctx_new()) != NULL)
2725                 {
2726                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2727                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2728                 }
2729 #endif  /* OPENSSL_NO_KRB5 */
2730         if(context) SSL_set_session_id_context(con, context,
2731                                                strlen((char *)context));
2732
2733         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2734         if (s_nbio_test)
2735                 {
2736                 BIO *test;
2737
2738                 test=BIO_new(BIO_f_nbio_test());
2739                 sbio=BIO_push(test,sbio);
2740                 }
2741         SSL_set_bio(con,sbio,sbio);
2742         SSL_set_accept_state(con);
2743
2744         /* SSL_set_fd(con,s); */
2745         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2746         BIO_push(io,ssl_bio);
2747 #ifdef CHARSET_EBCDIC
2748         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2749 #endif
2750
2751         if (s_debug)
2752                 {
2753                 SSL_set_debug(con, 1);
2754                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2755                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2756                 }
2757         if (s_msg)
2758                 {
2759 #ifndef OPENSSL_NO_SSL_TRACE
2760                 if (s_msg == 2)
2761                         SSL_set_msg_callback(con, SSL_trace);
2762                 else
2763 #endif
2764                         SSL_set_msg_callback(con, msg_cb);
2765                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
2766                 }
2767
2768         for (;;)
2769                 {
2770                 if (hack)
2771                         {
2772                         i=SSL_accept(con);
2773 #ifndef OPENSSL_NO_SRP
2774                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2775                 {
2776                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2777                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2778                         if (srp_callback_parm.user) 
2779                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2780                         else 
2781                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2782                         i=SSL_accept(con);
2783                 }
2784 #endif
2785                         switch (SSL_get_error(con,i))
2786                                 {
2787                         case SSL_ERROR_NONE:
2788                                 break;
2789                         case SSL_ERROR_WANT_WRITE:
2790                         case SSL_ERROR_WANT_READ:
2791                         case SSL_ERROR_WANT_X509_LOOKUP:
2792                                 continue;
2793                         case SSL_ERROR_SYSCALL:
2794                         case SSL_ERROR_SSL:
2795                         case SSL_ERROR_ZERO_RETURN:
2796                                 ret=1;
2797                                 goto err;
2798                                 /* break; */
2799                                 }
2800
2801                         SSL_renegotiate(con);
2802                         SSL_write(con,NULL,0);
2803                         }
2804
2805                 i=BIO_gets(io,buf,bufsize-1);
2806                 if (i < 0) /* error */
2807                         {
2808                         if (!BIO_should_retry(io))
2809                                 {
2810                                 if (!s_quiet)
2811                                         ERR_print_errors(bio_err);
2812                                 goto err;
2813                                 }
2814                         else
2815                                 {
2816                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2817 #if defined(OPENSSL_SYS_NETWARE)
2818             delay(1000);
2819 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2820                                 sleep(1);
2821 #endif
2822                                 continue;
2823                                 }
2824                         }
2825                 else if (i == 0) /* end of input */
2826                         {
2827                         ret=1;
2828                         goto end;
2829                         }
2830
2831                 /* else we have data */
2832                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2833                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2834                         {
2835                         char *p;
2836                         X509 *peer;
2837                         STACK_OF(SSL_CIPHER) *sk;
2838                         static const char *space="                          ";
2839
2840                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
2841                         {
2842                         if (strncmp("GET /renegcert", buf, 14) == 0)
2843                                 SSL_set_verify(con,
2844                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2845                         i=SSL_renegotiate(con);
2846                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
2847                         i=SSL_do_handshake(con);
2848                         if (i <= 0)
2849                                 {
2850                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2851                                 ERR_print_errors(bio_err);
2852                                 goto err;
2853                                 }
2854                         /* EVIL HACK! */
2855                         SSL_set_state(con, SSL_ST_ACCEPT);
2856                         i=SSL_do_handshake(con);
2857                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
2858                         if (i <= 0)
2859                                 {
2860                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2861                                 ERR_print_errors(bio_err);
2862                                 goto err;
2863                                 }
2864                         }
2865
2866                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2867                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2868                         BIO_puts(io,"<pre>\n");
2869 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2870                         BIO_puts(io,"\n");
2871                         for (i=0; i<local_argc; i++)
2872                                 {
2873                                 BIO_puts(io,local_argv[i]);
2874                                 BIO_write(io," ",1);
2875                                 }
2876                         BIO_puts(io,"\n");
2877
2878                         BIO_printf(io,
2879                                 "Secure Renegotiation IS%s supported\n",
2880                                 SSL_get_secure_renegotiation_support(con) ?
2881                                                         "" : " NOT");
2882
2883                         /* The following is evil and should not really
2884                          * be done */
2885                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2886                         sk=SSL_get_ciphers(con);
2887                         j=sk_SSL_CIPHER_num(sk);
2888                         for (i=0; i<j; i++)
2889                                 {
2890                                 c=sk_SSL_CIPHER_value(sk,i);
2891                                 BIO_printf(io,"%-11s:%-25s",
2892                                         SSL_CIPHER_get_version(c),
2893                                         SSL_CIPHER_get_name(c));
2894                                 if ((((i+1)%2) == 0) && (i+1 != j))
2895                                         BIO_puts(io,"\n");
2896                                 }
2897                         BIO_puts(io,"\n");
2898                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2899                         if (p != NULL)
2900                                 {
2901                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2902                                 j=i=0;
2903                                 while (*p)
2904                                         {
2905                                         if (*p == ':')
2906                                                 {
2907                                                 BIO_write(io,space,26-j);
2908                                                 i++;
2909                                                 j=0;
2910                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2911                                                 }
2912                                         else
2913                                                 {
2914                                                 BIO_write(io,p,1);
2915                                                 j++;
2916                                                 }
2917                                         p++;
2918                                         }
2919                                 BIO_puts(io,"\n");
2920                                 }
2921                         ssl_print_sigalgs(io, con);
2922                         ssl_print_curves(io, con, 0);
2923                         BIO_printf(io,(SSL_cache_hit(con)
2924                                 ?"---\nReused, "
2925                                 :"---\nNew, "));
2926                         c=SSL_get_current_cipher(con);
2927                         BIO_printf(io,"%s, Cipher is %s\n",
2928                                 SSL_CIPHER_get_version(c),
2929                                 SSL_CIPHER_get_name(c));
2930                         SSL_SESSION_print(io,SSL_get_session(con));
2931                         BIO_printf(io,"---\n");
2932                         print_stats(io,SSL_get_SSL_CTX(con));
2933                         BIO_printf(io,"---\n");
2934                         peer=SSL_get_peer_certificate(con);
2935                         if (peer != NULL)
2936                                 {
2937                                 BIO_printf(io,"Client certificate\n");
2938                                 X509_print(io,peer);
2939                                 PEM_write_bio_X509(io,peer);
2940                                 }
2941                         else
2942                                 BIO_puts(io,"no client certificate available\n");
2943                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2944                         break;
2945                         }
2946                 else if ((www == 2 || www == 3)
2947                          && (strncmp("GET /",buf,5) == 0))
2948                         {
2949                         BIO *file;
2950                         char *p,*e;
2951                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2952
2953                         /* skip the '/' */
2954                         p= &(buf[5]);
2955
2956                         dot = 1;
2957                         for (e=p; *e != '\0'; e++)
2958                                 {
2959                                 if (e[0] == ' ')
2960                                         break;
2961
2962                                 switch (dot)
2963                                         {
2964                                 case 1:
2965                                         dot = (e[0] == '.') ? 2 : 0;
2966                                         break;
2967                                 case 2:
2968                                         dot = (e[0] == '.') ? 3 : 0;
2969                                         break;
2970                                 case 3:
2971                                         dot = (e[0] == '/') ? -1 : 0;
2972                                         break;
2973                                         }
2974                                 if (dot == 0)
2975                                         dot = (e[0] == '/') ? 1 : 0;
2976                                 }
2977                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2978
2979                         if (*e == '\0')
2980                                 {
2981                                 BIO_puts(io,text);
2982                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2983                                 break;
2984                                 }
2985                         *e='\0';
2986
2987                         if (dot)
2988                                 {
2989                                 BIO_puts(io,text);
2990                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2991                                 break;
2992                                 }
2993
2994                         if (*p == '/')
2995                                 {
2996                                 BIO_puts(io,text);
2997                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2998                                 break;
2999                                 }
3000
3001 #if 0
3002                         /* append if a directory lookup */
3003                         if (e[-1] == '/')
3004                                 strcat(p,"index.html");
3005 #endif
3006
3007                         /* if a directory, do the index thang */
3008                         if (app_isdir(p)>0)
3009                                 {
3010 #if 0 /* must check buffer size */
3011                                 strcat(p,"/index.html");
3012 #else
3013                                 BIO_puts(io,text);
3014                                 BIO_printf(io,"'%s' is a directory\r\n",p);
3015                                 break;
3016 #endif
3017                                 }
3018
3019                         if ((file=BIO_new_file(p,"r")) == NULL)
3020                                 {
3021                                 BIO_puts(io,text);
3022                                 BIO_printf(io,"Error opening '%s'\r\n",p);
3023                                 ERR_print_errors(io);
3024                                 break;
3025                                 }
3026
3027                         if (!s_quiet)
3028                                 BIO_printf(bio_err,"FILE:%s\n",p);
3029
3030                         if (www == 2)
3031                                 {
3032                                 i=strlen(p);
3033                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
3034                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
3035                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
3036                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
3037                                 else
3038                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
3039                                 }
3040                         /* send the file */
3041                         for (;;)
3042                                 {
3043                                 i=BIO_read(file,buf,bufsize);
3044                                 if (i <= 0) break;
3045
3046 #ifdef RENEG
3047                                 total_bytes+=i;
3048                                 fprintf(stderr,"%d\n",i);
3049                                 if (total_bytes > 3*1024)
3050                                         {
3051                                         total_bytes=0;
3052                                         fprintf(stderr,"RENEGOTIATE\n");
3053                                         SSL_renegotiate(con);
3054                                         }
3055 #endif
3056
3057                                 for (j=0; j<i; )
3058                                         {
3059 #ifdef RENEG
3060 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
3061 #endif
3062                                         k=BIO_write(io,&(buf[j]),i-j);
3063                                         if (k <= 0)
3064                                                 {
3065                                                 if (!BIO_should_retry(io))
3066                                                         goto write_error;
3067                                                 else
3068                                                         {
3069                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
3070                                                         }
3071                                                 }
3072                                         else
3073                                                 {
3074                                                 j+=k;
3075                                                 }
3076                                         }
3077                                 }
3078 write_error:
3079                         BIO_free(file);
3080                         break;
3081                         }
3082                 }
3083
3084         for (;;)
3085                 {
3086                 i=(int)BIO_flush(io);
3087                 if (i <= 0)
3088                         {
3089                         if (!BIO_should_retry(io))
3090                                 break;
3091                         }
3092                 else
3093                         break;
3094                 }
3095 end:
3096 #if 1
3097         /* make sure we re-use sessions */
3098         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3099 #else
3100         /* This kills performance */
3101 /*      SSL_shutdown(con); A shutdown gets sent in the
3102  *      BIO_free_all(io) procession */
3103 #endif
3104
3105 err:
3106
3107         if (ret >= 0)
3108                 BIO_printf(bio_s_out,"ACCEPT\n");
3109
3110         if (buf != NULL) OPENSSL_free(buf);
3111         if (io != NULL) BIO_free_all(io);
3112 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3113         return(ret);
3114         }
3115
3116 static int rev_body(char *hostname, int s, unsigned char *context)
3117         {
3118         char *buf=NULL;
3119         int i;
3120         int ret=1;
3121         SSL *con;
3122         BIO *io,*ssl_bio,*sbio;
3123 #ifndef OPENSSL_NO_KRB5
3124         KSSL_CTX *kctx;
3125 #endif
3126
3127         buf=OPENSSL_malloc(bufsize);
3128         if (buf == NULL) return(0);
3129         io=BIO_new(BIO_f_buffer());
3130         ssl_bio=BIO_new(BIO_f_ssl());
3131         if ((io == NULL) || (ssl_bio == NULL)) goto err;
3132
3133         /* lets make the output buffer a reasonable size */
3134         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
3135
3136         if ((con=SSL_new(ctx)) == NULL) goto err;
3137 #ifndef OPENSSL_NO_TLSEXT
3138         if (s_tlsextdebug)
3139                 {
3140                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
3141                 SSL_set_tlsext_debug_arg(con, bio_s_out);
3142                 }
3143 #endif
3144 #ifndef OPENSSL_NO_KRB5
3145         if ((kctx = kssl_ctx_new()) != NULL)
3146                 {
3147                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
3148                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
3149                 }
3150 #endif  /* OPENSSL_NO_KRB5 */
3151         if(context) SSL_set_session_id_context(con, context,
3152                                                strlen((char *)context));
3153
3154         sbio=BIO_new_socket(s,BIO_NOCLOSE);
3155         SSL_set_bio(con,sbio,sbio);
3156         SSL_set_accept_state(con);
3157
3158         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
3159         BIO_push(io,ssl_bio);
3160 #ifdef CHARSET_EBCDIC
3161         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
3162 #endif
3163
3164         if (s_debug)
3165                 {
3166                 SSL_set_debug(con, 1);
3167                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
3168                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
3169                 }
3170         if (s_msg)
3171                 {
3172 #ifndef OPENSSL_NO_SSL_TRACE
3173                 if (s_msg == 2)
3174                         SSL_set_msg_callback(con, SSL_trace);
3175                 else
3176 #endif
3177                         SSL_set_msg_callback(con, msg_cb);
3178                 SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out);
3179                 }
3180
3181         for (;;)
3182                 {
3183                 i = BIO_do_handshake(io);
3184                 if (i > 0)
3185                         break;
3186                 if (!BIO_should_retry(io))
3187                         {
3188                         BIO_puts(bio_err, "CONNECTION FAILURE\n");
3189                         ERR_print_errors(bio_err);
3190                         goto end;
3191                         }
3192                 }
3193         BIO_printf(bio_err, "CONNECTION ESTABLISHED\n");
3194         print_ssl_summary(bio_err, con);
3195
3196         for (;;)
3197                 {
3198                 i=BIO_gets(io,buf,bufsize-1);
3199                 if (i < 0) /* error */
3200                         {
3201                         if (!BIO_should_retry(io))
3202                                 {
3203                                 if (!s_quiet)
3204                                         ERR_print_errors(bio_err);
3205                                 goto err;
3206                                 }
3207                         else
3208                                 {
3209                                 BIO_printf(bio_s_out,"read R BLOCK\n");
3210 #if defined(OPENSSL_SYS_NETWARE)
3211             delay(1000);
3212 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
3213                                 sleep(1);
3214 #endif
3215                                 continue;
3216                                 }
3217                         }
3218                 else if (i == 0) /* end of input */
3219                         {
3220                         ret=1;
3221                         BIO_printf(bio_err, "CONNECTION CLOSED\n");
3222                         goto end;
3223                         }
3224                 else
3225                         {
3226                         char *p = buf + i - 1;
3227                         while(i && (*p == '\n' || *p == '\r'))
3228                                 {
3229                                 p--;
3230                                 i--;
3231                                 }
3232                         if (!s_ign_eof && i == 5 && !strncmp(buf, "CLOSE", 5))
3233                                 {
3234                                 ret = 1;
3235                                 BIO_printf(bio_err, "CONNECTION CLOSED\n");
3236                                 goto end;
3237                                 }
3238                         BUF_reverse((unsigned char *)buf, NULL, i);
3239                         buf[i] = '\n';
3240                         BIO_write(io, buf, i + 1);
3241                         for (;;)
3242                                 {
3243                                 i = BIO_flush(io);
3244                                 if (i > 0)
3245                                         break;
3246                                 if (!BIO_should_retry(io))
3247                                         goto end;
3248                                 }
3249                         }
3250                 }
3251 end:
3252         /* make sure we re-use sessions */
3253         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3254
3255 err:
3256
3257         if (buf != NULL) OPENSSL_free(buf);
3258         if (io != NULL) BIO_free_all(io);
3259         return(ret);
3260         }
3261
3262 #ifndef OPENSSL_NO_RSA
3263 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3264         {
3265         BIGNUM *bn = NULL;
3266         static RSA *rsa_tmp=NULL;
3267
3268         if (!rsa_tmp && ((bn = BN_new()) == NULL))
3269                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
3270         if (!rsa_tmp && bn)
3271                 {
3272                 if (!s_quiet)
3273                         {
3274                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
3275                         (void)BIO_flush(bio_err);
3276                         }
3277                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3278                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
3279                         {
3280                         if(rsa_tmp) RSA_free(rsa_tmp);
3281                         rsa_tmp = NULL;
3282                         }
3283                 if (!s_quiet)
3284                         {
3285                         BIO_printf(bio_err,"\n");
3286                         (void)BIO_flush(bio_err);
3287                         }
3288                 BN_free(bn);
3289                 }
3290         return(rsa_tmp);
3291         }
3292 #endif
3293
3294 #define MAX_SESSION_ID_ATTEMPTS 10
3295 static int generate_session_id(const SSL *ssl, unsigned char *id,
3296                                 unsigned int *id_len)
3297         {
3298         unsigned int count = 0;
3299         do      {
3300                 RAND_pseudo_bytes(id, *id_len);
3301                 /* Prefix the session_id with the required prefix. NB: If our
3302                  * prefix is too long, clip it - but there will be worse effects
3303                  * anyway, eg. the server could only possibly create 1 session
3304                  * ID (ie. the prefix!) so all future session negotiations will
3305                  * fail due to conflicts. */
3306                 memcpy(id, session_id_prefix,
3307                         (strlen(session_id_prefix) < *id_len) ?
3308                         strlen(session_id_prefix) : *id_len);
3309                 }
3310         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3311                 (++count < MAX_SESSION_ID_ATTEMPTS));
3312         if(count >= MAX_SESSION_ID_ATTEMPTS)
3313                 return 0;
3314         return 1;
3315         }
3316
3317 /* By default s_server uses an in-memory cache which caches SSL_SESSION
3318  * structures without any serialisation. This hides some bugs which only
3319  * become apparent in deployed servers. By implementing a basic external
3320  * session cache some issues can be debugged using s_server.
3321  */
3322
3323 typedef struct simple_ssl_session_st
3324         {
3325         unsigned char *id;
3326         unsigned int idlen;
3327         unsigned char *der;
3328         int derlen;
3329         struct simple_ssl_session_st *next;
3330         } simple_ssl_session;
3331
3332 static simple_ssl_session *first = NULL;
3333
3334 static int add_session(SSL *ssl, SSL_SESSION *session)
3335         {
3336         simple_ssl_session *sess;
3337         unsigned char *p;
3338
3339         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3340
3341         SSL_SESSION_get_id(session, &sess->idlen);
3342         sess->derlen = i2d_SSL_SESSION(session, NULL);
3343
3344         sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3345
3346         sess->der = OPENSSL_malloc(sess->derlen);
3347         p = sess->der;
3348         i2d_SSL_SESSION(session, &p);
3349
3350         sess->next = first;
3351         first = sess;
3352         BIO_printf(bio_err, "New session added to external cache\n");
3353         return 0;
3354         }
3355
3356 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3357                                         int *do_copy)
3358         {
3359         simple_ssl_session *sess;
3360         *do_copy = 0;
3361         for (sess = first; sess; sess = sess->next)
3362                 {
3363                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3364                         {
3365                         const unsigned char *p = sess->der;
3366                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3367                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3368                         }
3369                 }
3370         BIO_printf(bio_err, "Lookup session: cache miss\n");
3371         return NULL;
3372         }
3373
3374 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
3375         {
3376         simple_ssl_session *sess, *prev = NULL;
3377         const unsigned char *id;
3378         unsigned int idlen;
3379         id = SSL_SESSION_get_id(session, &idlen);       
3380         for (sess = first; sess; sess = sess->next)
3381                 {
3382                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
3383                         {
3384                         if(prev)
3385                                 prev->next = sess->next;
3386                         else
3387                                 first = sess->next;
3388                         OPENSSL_free(sess->id);
3389                         OPENSSL_free(sess->der);
3390                         OPENSSL_free(sess);
3391                         return;
3392                         }
3393                 prev = sess;
3394                 }
3395         }
3396
3397 static void init_session_cache_ctx(SSL_CTX *sctx)
3398         {
3399         SSL_CTX_set_session_cache_mode(sctx,
3400                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
3401         SSL_CTX_sess_set_new_cb(sctx, add_session);
3402         SSL_CTX_sess_set_get_cb(sctx, get_session);
3403         SSL_CTX_sess_set_remove_cb(sctx, del_session);
3404         }
3405
3406 static void free_sessions(void)
3407         {
3408         simple_ssl_session *sess, *tsess;
3409         for (sess = first; sess;)
3410                 {
3411                 OPENSSL_free(sess->id);
3412                 OPENSSL_free(sess->der);
3413                 tsess = sess;
3414                 sess = sess->next;
3415                 OPENSSL_free(tsess);
3416                 }
3417         first = NULL;
3418         }