Add support for automatic ECDH temporary key parameter selection. When
[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 void close_accept_socket(void );
211 static void sv_usage(void);
212 static int init_ssl_connection(SSL *s);
213 static void print_stats(BIO *bp,SSL_CTX *ctx);
214 static int generate_session_id(const SSL *ssl, unsigned char *id,
215                                 unsigned int *id_len);
216 static void init_session_cache_ctx(SSL_CTX *sctx);
217 static void free_sessions(void);
218 #ifndef OPENSSL_NO_DH
219 static DH *load_dh_param(const char *dhfile);
220 static DH *get_dh512(void);
221 #endif
222
223 #ifdef MONOLITH
224 static void s_server_init(void);
225 #endif
226
227 #ifndef OPENSSL_NO_DH
228 static unsigned char dh512_p[]={
229         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
230         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
231         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
232         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
233         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
234         0x47,0x74,0xE8,0x33,
235         };
236 static unsigned char dh512_g[]={
237         0x02,
238         };
239
240 static DH *get_dh512(void)
241         {
242         DH *dh=NULL;
243
244         if ((dh=DH_new()) == NULL) return(NULL);
245         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
246         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
247         if ((dh->p == NULL) || (dh->g == NULL))
248                 return(NULL);
249         return(dh);
250         }
251 #endif
252
253
254 /* static int load_CA(SSL_CTX *ctx, char *file);*/
255
256 #undef BUFSIZZ
257 #define BUFSIZZ 16*1024
258 static int bufsize=BUFSIZZ;
259 static int accept_socket= -1;
260
261 #define TEST_CERT       "server.pem"
262 #ifndef OPENSSL_NO_TLSEXT
263 #define TEST_CERT2      "server2.pem"
264 #endif
265 #undef PROG
266 #define PROG            s_server_main
267
268 extern int verify_depth, verify_return_error;
269
270 static char *cipher=NULL;
271 static int s_server_verify=SSL_VERIFY_NONE;
272 static int s_server_session_id_context = 1; /* anything will do */
273 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
274 #ifndef OPENSSL_NO_TLSEXT
275 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
276 static char *curves=NULL;
277 #endif
278 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
279 #ifdef FIONBIO
280 static int s_nbio=0;
281 #endif
282 static int s_nbio_test=0;
283 int s_crlf=0;
284 static SSL_CTX *ctx=NULL;
285 #ifndef OPENSSL_NO_TLSEXT
286 static SSL_CTX *ctx2=NULL;
287 #endif
288 static int www=0;
289
290 static BIO *bio_s_out=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
301 static char *keymatexportlabel=NULL;
302 static int keymatexportlen=20;
303
304 static int hack=0;
305 #ifndef OPENSSL_NO_ENGINE
306 static char *engine_id=NULL;
307 #endif
308 static const char *session_id_prefix=NULL;
309
310 static int enable_timeouts = 0;
311 static long socket_mtu;
312 #ifndef OPENSSL_NO_DTLS1
313 static int cert_chain = 0;
314 #endif
315
316
317 #ifndef OPENSSL_NO_PSK
318 static char *psk_identity="Client_identity";
319 char *psk_key=NULL; /* by default PSK is not used */
320
321 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
322         unsigned char *psk, unsigned int max_psk_len)
323         {
324         unsigned int psk_len = 0;
325         int ret;
326         BIGNUM *bn = NULL;
327
328         if (s_debug)
329                 BIO_printf(bio_s_out,"psk_server_cb\n");
330         if (!identity)
331                 {
332                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
333                 goto out_err;
334                 }
335         if (s_debug)
336                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
337                         identity ? (int)strlen(identity) : 0, identity);
338
339         /* here we could lookup the given identity e.g. from a database */
340         if (strcmp(identity, psk_identity) != 0)
341                 {
342                 BIO_printf(bio_s_out, "PSK error: client identity not found"
343                            " (got '%s' expected '%s')\n", identity,
344                            psk_identity);
345                 goto out_err;
346                 }
347         if (s_debug)
348                 BIO_printf(bio_s_out, "PSK client identity found\n");
349
350         /* convert the PSK key to binary */
351         ret = BN_hex2bn(&bn, psk_key);
352         if (!ret)
353                 {
354                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
355                 if (bn)
356                         BN_free(bn);
357                 return 0;
358                 }
359         if (BN_num_bytes(bn) > (int)max_psk_len)
360                 {
361                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
362                         max_psk_len, BN_num_bytes(bn));
363                 BN_free(bn);
364                 return 0;
365                 }
366
367         ret = BN_bn2bin(bn, psk);
368         BN_free(bn);
369
370         if (ret < 0)
371                 goto out_err;
372         psk_len = (unsigned int)ret;
373
374         if (s_debug)
375                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
376         return psk_len;
377  out_err:
378         if (s_debug)
379                 BIO_printf(bio_err, "Error in PSK server callback\n");
380         return 0;
381         }
382 #endif
383
384 #ifndef OPENSSL_NO_SRP
385 /* This is a context that we pass to callbacks */
386 typedef struct srpsrvparm_st
387         {
388         char *login;
389         SRP_VBASE *vb;
390         SRP_user_pwd *user;
391         } srpsrvparm;
392
393 /* This callback pretends to require some asynchronous logic in order to obtain
394    a verifier. When the callback is called for a new connection we return
395    with a negative value. This will provoke the accept etc to return with
396    an LOOKUP_X509. The main logic of the reinvokes the suspended call 
397    (which would normally occur after a worker has finished) and we
398    set the user parameters. 
399 */
400 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
401         {
402         srpsrvparm *p = (srpsrvparm *)arg;
403         if (p->login == NULL && p->user == NULL )
404                 {
405                 p->login = SSL_get_srp_username(s);
406                 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
407                 return (-1) ;
408                 }
409
410         if (p->user == NULL)
411                 {
412                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
413                 return SSL3_AL_FATAL;
414                 }
415         if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
416                                      p->user->info) < 0)
417                 {
418                 *ad = SSL_AD_INTERNAL_ERROR;
419                 return SSL3_AL_FATAL;
420                 }
421         BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
422         /* need to check whether there are memory leaks */
423         p->user = NULL;
424         p->login = NULL;
425         return SSL_ERROR_NONE;
426         }
427
428 #endif
429
430 #ifdef MONOLITH
431 static void s_server_init(void)
432         {
433         accept_socket=-1;
434         cipher=NULL;
435         s_server_verify=SSL_VERIFY_NONE;
436         s_dcert_file=NULL;
437         s_dkey_file=NULL;
438         s_cert_file=TEST_CERT;
439         s_key_file=NULL;
440 #ifndef OPENSSL_NO_TLSEXT
441         curves=NULL;
442         s_cert_file2=TEST_CERT2;
443         s_key_file2=NULL;
444         ctx2=NULL;
445 #endif
446 #ifdef FIONBIO
447         s_nbio=0;
448 #endif
449         s_nbio_test=0;
450         ctx=NULL;
451         www=0;
452
453         bio_s_out=NULL;
454         s_debug=0;
455         s_msg=0;
456         s_quiet=0;
457         hack=0;
458 #ifndef OPENSSL_NO_ENGINE
459         engine_id=NULL;
460 #endif
461         }
462 #endif
463
464 static void sv_usage(void)
465         {
466         BIO_printf(bio_err,"usage: s_server [args ...]\n");
467         BIO_printf(bio_err,"\n");
468         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
469         BIO_printf(bio_err," -context arg  - set session ID context\n");
470         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
471         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
472         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
473         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
474         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
475                            "                 The CRL(s) are appended to the certificate file\n");
476         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
477                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
478                            "                 the certificate file.\n");
479         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
480         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
481         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
482         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
483         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
484         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
485         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
486         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
487         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
488         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
489         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
490         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
491 #ifndef OPENSSL_NO_ECDH
492         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
493                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
494                            "                 (default is nistp256).\n");
495 #endif
496 #ifdef FIONBIO
497         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
498 #endif
499         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
500         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
501         BIO_printf(bio_err," -debug        - Print more output\n");
502         BIO_printf(bio_err," -msg          - Show protocol messages\n");
503         BIO_printf(bio_err," -state        - Print the SSL states\n");
504         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
505         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
506         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
507         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
508         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
509         BIO_printf(bio_err," -quiet        - No server output\n");
510         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
511 #ifndef OPENSSL_NO_PSK
512         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
513         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
514 # ifndef OPENSSL_NO_JPAKE
515         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
516 # endif
517 #endif
518 #ifndef OPENSSL_NO_SRP
519         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
520         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
521 #endif
522         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
523         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
524         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
525         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
526         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
527         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
528         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
529         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
530         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
531         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
532         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
533         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
534         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
535         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
536 #ifndef OPENSSL_NO_DH
537         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
538 #endif
539 #ifndef OPENSSL_NO_ECDH
540         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
541 #endif
542         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
543         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
544         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
545         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
546         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
547         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
548 #ifndef OPENSSL_NO_ENGINE
549         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
550 #endif
551         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
552         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
553 #ifndef OPENSSL_NO_TLSEXT
554         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
555         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
556         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
557         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
558         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
559         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
560         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
561         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
562         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
563 # ifndef OPENSSL_NO_NEXTPROTONEG
564         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
565 # endif
566         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
567 #endif
568         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
569         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
570         }
571
572 static int local_argc=0;
573 static char **local_argv;
574
575 #ifdef CHARSET_EBCDIC
576 static int ebcdic_new(BIO *bi);
577 static int ebcdic_free(BIO *a);
578 static int ebcdic_read(BIO *b, char *out, int outl);
579 static int ebcdic_write(BIO *b, const char *in, int inl);
580 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
581 static int ebcdic_gets(BIO *bp, char *buf, int size);
582 static int ebcdic_puts(BIO *bp, const char *str);
583
584 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
585 static BIO_METHOD methods_ebcdic=
586         {
587         BIO_TYPE_EBCDIC_FILTER,
588         "EBCDIC/ASCII filter",
589         ebcdic_write,
590         ebcdic_read,
591         ebcdic_puts,
592         ebcdic_gets,
593         ebcdic_ctrl,
594         ebcdic_new,
595         ebcdic_free,
596         };
597
598 typedef struct
599 {
600         size_t  alloced;
601         char    buff[1];
602 } EBCDIC_OUTBUFF;
603
604 BIO_METHOD *BIO_f_ebcdic_filter()
605 {
606         return(&methods_ebcdic);
607 }
608
609 static int ebcdic_new(BIO *bi)
610 {
611         EBCDIC_OUTBUFF *wbuf;
612
613         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
614         wbuf->alloced = 1024;
615         wbuf->buff[0] = '\0';
616
617         bi->ptr=(char *)wbuf;
618         bi->init=1;
619         bi->flags=0;
620         return(1);
621 }
622
623 static int ebcdic_free(BIO *a)
624 {
625         if (a == NULL) return(0);
626         if (a->ptr != NULL)
627                 OPENSSL_free(a->ptr);
628         a->ptr=NULL;
629         a->init=0;
630         a->flags=0;
631         return(1);
632 }
633         
634 static int ebcdic_read(BIO *b, char *out, int outl)
635 {
636         int ret=0;
637
638         if (out == NULL || outl == 0) return(0);
639         if (b->next_bio == NULL) return(0);
640
641         ret=BIO_read(b->next_bio,out,outl);
642         if (ret > 0)
643                 ascii2ebcdic(out,out,ret);
644         return(ret);
645 }
646
647 static int ebcdic_write(BIO *b, const char *in, int inl)
648 {
649         EBCDIC_OUTBUFF *wbuf;
650         int ret=0;
651         int num;
652         unsigned char n;
653
654         if ((in == NULL) || (inl <= 0)) return(0);
655         if (b->next_bio == NULL) return(0);
656
657         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
658
659         if (inl > (num = wbuf->alloced))
660         {
661                 num = num + num;  /* double the size */
662                 if (num < inl)
663                         num = inl;
664                 OPENSSL_free(wbuf);
665                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
666
667                 wbuf->alloced = num;
668                 wbuf->buff[0] = '\0';
669
670                 b->ptr=(char *)wbuf;
671         }
672
673         ebcdic2ascii(wbuf->buff, in, inl);
674
675         ret=BIO_write(b->next_bio, wbuf->buff, inl);
676
677         return(ret);
678 }
679
680 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
681 {
682         long ret;
683
684         if (b->next_bio == NULL) return(0);
685         switch (cmd)
686         {
687         case BIO_CTRL_DUP:
688                 ret=0L;
689                 break;
690         default:
691                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
692                 break;
693         }
694         return(ret);
695 }
696
697 static int ebcdic_gets(BIO *bp, char *buf, int size)
698 {
699         int i, ret=0;
700         if (bp->next_bio == NULL) return(0);
701 /*      return(BIO_gets(bp->next_bio,buf,size));*/
702         for (i=0; i<size-1; ++i)
703         {
704                 ret = ebcdic_read(bp,&buf[i],1);
705                 if (ret <= 0)
706                         break;
707                 else if (buf[i] == '\n')
708                 {
709                         ++i;
710                         break;
711                 }
712         }
713         if (i < size)
714                 buf[i] = '\0';
715         return (ret < 0 && i == 0) ? ret : i;
716 }
717
718 static int ebcdic_puts(BIO *bp, const char *str)
719 {
720         if (bp->next_bio == NULL) return(0);
721         return ebcdic_write(bp, str, strlen(str));
722 }
723 #endif
724
725 #ifndef OPENSSL_NO_TLSEXT
726
727 /* This is a context that we pass to callbacks */
728 typedef struct tlsextctx_st {
729    char * servername;
730    BIO * biodebug;
731    int extension_error;
732 } tlsextctx;
733
734
735 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
736         {
737         tlsextctx * p = (tlsextctx *) arg;
738         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
739         if (servername && p->biodebug) 
740                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
741         
742         if (!p->servername)
743                 return SSL_TLSEXT_ERR_NOACK;
744         
745         if (servername)
746                 {
747                 if (strcmp(servername,p->servername)) 
748                         return p->extension_error;
749                 if (ctx2)
750                         {
751                         BIO_printf(p->biodebug,"Switching server context.\n");
752                         SSL_set_SSL_CTX(s,ctx2);
753                         }     
754                 }
755         return SSL_TLSEXT_ERR_OK;
756 }
757
758 /* Structure passed to cert status callback */
759
760 typedef struct tlsextstatusctx_st {
761    /* Default responder to use */
762    char *host, *path, *port;
763    int use_ssl;
764    int timeout;
765    BIO *err;
766    int verbose;
767 } tlsextstatusctx;
768
769 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
770
771 /* Certificate Status callback. This is called when a client includes a
772  * certificate status request extension.
773  *
774  * This is a simplified version. It examines certificates each time and
775  * makes one OCSP responder query for each request.
776  *
777  * A full version would store details such as the OCSP certificate IDs and
778  * minimise the number of OCSP responses by caching them until they were
779  * considered "expired".
780  */
781
782 static int cert_status_cb(SSL *s, void *arg)
783         {
784         tlsextstatusctx *srctx = arg;
785         BIO *err = srctx->err;
786         char *host, *port, *path;
787         int use_ssl;
788         unsigned char *rspder = NULL;
789         int rspderlen;
790         STACK_OF(OPENSSL_STRING) *aia = NULL;
791         X509 *x = NULL;
792         X509_STORE_CTX inctx;
793         X509_OBJECT obj;
794         OCSP_REQUEST *req = NULL;
795         OCSP_RESPONSE *resp = NULL;
796         OCSP_CERTID *id = NULL;
797         STACK_OF(X509_EXTENSION) *exts;
798         int ret = SSL_TLSEXT_ERR_NOACK;
799         int i;
800 #if 0
801 STACK_OF(OCSP_RESPID) *ids;
802 SSL_get_tlsext_status_ids(s, &ids);
803 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
804 #endif
805         if (srctx->verbose)
806                 BIO_puts(err, "cert_status: callback called\n");
807         /* Build up OCSP query from server certificate */
808         x = SSL_get_certificate(s);
809         aia = X509_get1_ocsp(x);
810         if (aia)
811                 {
812                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
813                         &host, &port, &path, &use_ssl))
814                         {
815                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
816                         goto err;
817                         }
818                 if (srctx->verbose)
819                         BIO_printf(err, "cert_status: AIA URL: %s\n",
820                                         sk_OPENSSL_STRING_value(aia, 0));
821                 }
822         else
823                 {
824                 if (!srctx->host)
825                         {
826                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
827                         goto done;
828                         }
829                 host = srctx->host;
830                 path = srctx->path;
831                 port = srctx->port;
832                 use_ssl = srctx->use_ssl;
833                 }
834                 
835         if (!X509_STORE_CTX_init(&inctx,
836                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
837                                 NULL, NULL))
838                 goto err;
839         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
840                                 X509_get_issuer_name(x),&obj) <= 0)
841                 {
842                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
843                 X509_STORE_CTX_cleanup(&inctx);
844                 goto done;
845                 }
846         req = OCSP_REQUEST_new();
847         if (!req)
848                 goto err;
849         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
850         X509_free(obj.data.x509);
851         X509_STORE_CTX_cleanup(&inctx);
852         if (!id)
853                 goto err;
854         if (!OCSP_request_add0_id(req, id))
855                 goto err;
856         id = NULL;
857         /* Add any extensions to the request */
858         SSL_get_tlsext_status_exts(s, &exts);
859         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
860                 {
861                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
862                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
863                         goto err;
864                 }
865         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
866                                         srctx->timeout);
867         if (!resp)
868                 {
869                 BIO_puts(err, "cert_status: error querying responder\n");
870                 goto done;
871                 }
872         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
873         if (rspderlen <= 0)
874                 goto err;
875         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
876         if (srctx->verbose)
877                 {
878                 BIO_puts(err, "cert_status: ocsp response sent:\n");
879                 OCSP_RESPONSE_print(err, resp, 2);
880                 }
881         ret = SSL_TLSEXT_ERR_OK;
882         done:
883         if (ret != SSL_TLSEXT_ERR_OK)
884                 ERR_print_errors(err);
885         if (aia)
886                 {
887                 OPENSSL_free(host);
888                 OPENSSL_free(path);
889                 OPENSSL_free(port);
890                 X509_email_free(aia);
891                 }
892         if (id)
893                 OCSP_CERTID_free(id);
894         if (req)
895                 OCSP_REQUEST_free(req);
896         if (resp)
897                 OCSP_RESPONSE_free(resp);
898         return ret;
899         err:
900         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
901         goto done;
902         }
903
904 # ifndef OPENSSL_NO_NEXTPROTONEG
905 /* This is the context that we pass to next_proto_cb */
906 typedef struct tlsextnextprotoctx_st {
907         unsigned char *data;
908         unsigned int len;
909 } tlsextnextprotoctx;
910
911 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
912         {
913         tlsextnextprotoctx *next_proto = arg;
914
915         *data = next_proto->data;
916         *len = next_proto->len;
917
918         return SSL_TLSEXT_ERR_OK;
919         }
920 # endif  /* ndef OPENSSL_NO_NPN */
921 #endif
922
923 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
924         {
925         /* disable resumption for sessions with forward secure ciphers */
926         return is_forward_secure;
927         }
928
929 int MAIN(int, char **);
930
931 #ifndef OPENSSL_NO_JPAKE
932 static char *jpake_secret = NULL;
933 #endif
934 #ifndef OPENSSL_NO_SRP
935         static srpsrvparm srp_callback_parm;
936 #endif
937 static char *srtp_profiles = NULL;
938
939 int MAIN(int argc, char *argv[])
940         {
941         X509_VERIFY_PARAM *vpm = NULL;
942         int badarg = 0;
943         short port=PORT;
944         char *CApath=NULL,*CAfile=NULL;
945         unsigned char *context = NULL;
946         char *dhfile = NULL;
947 #ifndef OPENSSL_NO_ECDH
948         char *named_curve = NULL;
949 #endif
950         int badop=0,bugs=0;
951         int ret=1;
952         int off=0;
953         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
954         int state=0;
955         const SSL_METHOD *meth=NULL;
956         int socket_type=SOCK_STREAM;
957         ENGINE *e=NULL;
958         char *inrand=NULL;
959         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
960         char *passarg = NULL, *pass = NULL;
961         char *dpassarg = NULL, *dpass = NULL;
962         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
963         X509 *s_cert = NULL, *s_dcert = NULL;
964         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
965         int no_cache = 0, ext_cache = 0;
966 #ifndef OPENSSL_NO_TLSEXT
967         EVP_PKEY *s_key2 = NULL;
968         X509 *s_cert2 = NULL;
969 #endif
970 #ifndef OPENSSL_NO_TLSEXT
971         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
972 # ifndef OPENSSL_NO_NEXTPROTONEG
973         const char *next_proto_neg_in = NULL;
974         tlsextnextprotoctx next_proto;
975 # endif
976 #endif
977 #ifndef OPENSSL_NO_PSK
978         /* by default do not send a PSK identity hint */
979         static char *psk_identity_hint=NULL;
980 #endif
981 #ifndef OPENSSL_NO_SRP
982         char *srpuserseed = NULL;
983         char *srp_verifier_file = NULL;
984 #endif
985         meth=SSLv23_server_method();
986
987         local_argc=argc;
988         local_argv=argv;
989
990         apps_startup();
991 #ifdef MONOLITH
992         s_server_init();
993 #endif
994
995         if (bio_err == NULL)
996                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
997
998         if (!load_config(bio_err, NULL))
999                 goto end;
1000
1001         verify_depth=0;
1002 #ifdef FIONBIO
1003         s_nbio=0;
1004 #endif
1005         s_nbio_test=0;
1006
1007         argc--;
1008         argv++;
1009
1010         while (argc >= 1)
1011                 {
1012                 if      ((strcmp(*argv,"-port") == 0) ||
1013                          (strcmp(*argv,"-accept") == 0))
1014                         {
1015                         if (--argc < 1) goto bad;
1016                         if (!extract_port(*(++argv),&port))
1017                                 goto bad;
1018                         }
1019                 else if (strcmp(*argv,"-verify") == 0)
1020                         {
1021                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1022                         if (--argc < 1) goto bad;
1023                         verify_depth=atoi(*(++argv));
1024                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1025                         }
1026                 else if (strcmp(*argv,"-Verify") == 0)
1027                         {
1028                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1029                                 SSL_VERIFY_CLIENT_ONCE;
1030                         if (--argc < 1) goto bad;
1031                         verify_depth=atoi(*(++argv));
1032                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1033                         }
1034                 else if (strcmp(*argv,"-context") == 0)
1035                         {
1036                         if (--argc < 1) goto bad;
1037                         context= (unsigned char *)*(++argv);
1038                         }
1039                 else if (strcmp(*argv,"-cert") == 0)
1040                         {
1041                         if (--argc < 1) goto bad;
1042                         s_cert_file= *(++argv);
1043                         }
1044                 else if (strcmp(*argv,"-certform") == 0)
1045                         {
1046                         if (--argc < 1) goto bad;
1047                         s_cert_format = str2fmt(*(++argv));
1048                         }
1049                 else if (strcmp(*argv,"-key") == 0)
1050                         {
1051                         if (--argc < 1) goto bad;
1052                         s_key_file= *(++argv);
1053                         }
1054                 else if (strcmp(*argv,"-keyform") == 0)
1055                         {
1056                         if (--argc < 1) goto bad;
1057                         s_key_format = str2fmt(*(++argv));
1058                         }
1059                 else if (strcmp(*argv,"-pass") == 0)
1060                         {
1061                         if (--argc < 1) goto bad;
1062                         passarg = *(++argv);
1063                         }
1064                 else if (strcmp(*argv,"-dhparam") == 0)
1065                         {
1066                         if (--argc < 1) goto bad;
1067                         dhfile = *(++argv);
1068                         }
1069 #ifndef OPENSSL_NO_ECDH         
1070                 else if (strcmp(*argv,"-named_curve") == 0)
1071                         {
1072                         if (--argc < 1) goto bad;
1073                         named_curve = *(++argv);
1074                         }
1075 #endif
1076                 else if (strcmp(*argv,"-dcertform") == 0)
1077                         {
1078                         if (--argc < 1) goto bad;
1079                         s_dcert_format = str2fmt(*(++argv));
1080                         }
1081                 else if (strcmp(*argv,"-dcert") == 0)
1082                         {
1083                         if (--argc < 1) goto bad;
1084                         s_dcert_file= *(++argv);
1085                         }
1086                 else if (strcmp(*argv,"-dkeyform") == 0)
1087                         {
1088                         if (--argc < 1) goto bad;
1089                         s_dkey_format = str2fmt(*(++argv));
1090                         }
1091                 else if (strcmp(*argv,"-dpass") == 0)
1092                         {
1093                         if (--argc < 1) goto bad;
1094                         dpassarg = *(++argv);
1095                         }
1096                 else if (strcmp(*argv,"-dkey") == 0)
1097                         {
1098                         if (--argc < 1) goto bad;
1099                         s_dkey_file= *(++argv);
1100                         }
1101                 else if (strcmp(*argv,"-nocert") == 0)
1102                         {
1103                         nocert=1;
1104                         }
1105                 else if (strcmp(*argv,"-CApath") == 0)
1106                         {
1107                         if (--argc < 1) goto bad;
1108                         CApath= *(++argv);
1109                         }
1110                 else if (strcmp(*argv,"-no_cache") == 0)
1111                         no_cache = 1;
1112                 else if (strcmp(*argv,"-ext_cache") == 0)
1113                         ext_cache = 1;
1114                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1115                         {
1116                         if (badarg)
1117                                 goto bad;
1118                         continue;
1119                         }
1120                 else if (strcmp(*argv,"-verify_return_error") == 0)
1121                         verify_return_error = 1;
1122                 else if (strcmp(*argv,"-serverpref") == 0)
1123                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
1124                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
1125                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
1126                 else if (strcmp(*argv,"-cipher") == 0)
1127                         {
1128                         if (--argc < 1) goto bad;
1129                         cipher= *(++argv);
1130                         }
1131                 else if (strcmp(*argv,"-CAfile") == 0)
1132                         {
1133                         if (--argc < 1) goto bad;
1134                         CAfile= *(++argv);
1135                         }
1136 #ifdef FIONBIO  
1137                 else if (strcmp(*argv,"-nbio") == 0)
1138                         { s_nbio=1; }
1139 #endif
1140                 else if (strcmp(*argv,"-nbio_test") == 0)
1141                         {
1142 #ifdef FIONBIO  
1143                         s_nbio=1;
1144 #endif
1145                         s_nbio_test=1;
1146                         }
1147                 else if (strcmp(*argv,"-debug") == 0)
1148                         { s_debug=1; }
1149 #ifndef OPENSSL_NO_TLSEXT
1150                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1151                         s_tlsextdebug=1;
1152                 else if (strcmp(*argv,"-status") == 0)
1153                         s_tlsextstatus=1;
1154                 else if (strcmp(*argv,"-status_verbose") == 0)
1155                         {
1156                         s_tlsextstatus=1;
1157                         tlscstatp.verbose = 1;
1158                         }
1159                 else if (!strcmp(*argv, "-status_timeout"))
1160                         {
1161                         s_tlsextstatus=1;
1162                         if (--argc < 1) goto bad;
1163                         tlscstatp.timeout = atoi(*(++argv));
1164                         }
1165                 else if (!strcmp(*argv, "-status_url"))
1166                         {
1167                         s_tlsextstatus=1;
1168                         if (--argc < 1) goto bad;
1169                         if (!OCSP_parse_url(*(++argv),
1170                                         &tlscstatp.host,
1171                                         &tlscstatp.port,
1172                                         &tlscstatp.path,
1173                                         &tlscstatp.use_ssl))
1174                                 {
1175                                 BIO_printf(bio_err, "Error parsing URL\n");
1176                                 goto bad;
1177                                 }
1178                         }
1179                 else if (strcmp(*argv,"-curves") == 0)
1180                         {
1181                         if (--argc < 1) goto bad;
1182                         curves= *(++argv);
1183                         }
1184 #endif
1185                 else if (strcmp(*argv,"-msg") == 0)
1186                         { s_msg=1; }
1187                 else if (strcmp(*argv,"-hack") == 0)
1188                         { hack=1; }
1189                 else if (strcmp(*argv,"-state") == 0)
1190                         { state=1; }
1191                 else if (strcmp(*argv,"-crlf") == 0)
1192                         { s_crlf=1; }
1193                 else if (strcmp(*argv,"-quiet") == 0)
1194                         { s_quiet=1; }
1195                 else if (strcmp(*argv,"-bugs") == 0)
1196                         { bugs=1; }
1197                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1198                         { no_tmp_rsa=1; }
1199                 else if (strcmp(*argv,"-no_dhe") == 0)
1200                         { no_dhe=1; }
1201                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1202                         { no_ecdhe=1; }
1203                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1204                         { no_resume_ephemeral = 1; }
1205 #ifndef OPENSSL_NO_PSK
1206                 else if (strcmp(*argv,"-psk_hint") == 0)
1207                         {
1208                         if (--argc < 1) goto bad;
1209                         psk_identity_hint= *(++argv);
1210                         }
1211                 else if (strcmp(*argv,"-psk") == 0)
1212                         {
1213                         size_t i;
1214
1215                         if (--argc < 1) goto bad;
1216                         psk_key=*(++argv);
1217                         for (i=0; i<strlen(psk_key); i++)
1218                                 {
1219                                 if (isxdigit((unsigned char)psk_key[i]))
1220                                         continue;
1221                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1222                                 goto bad;
1223                                 }
1224                         }
1225 #endif
1226 #ifndef OPENSSL_NO_SRP
1227                 else if (strcmp(*argv, "-srpvfile") == 0)
1228                         {
1229                         if (--argc < 1) goto bad;
1230                         srp_verifier_file = *(++argv);
1231                         meth = TLSv1_server_method();
1232                         }
1233                 else if (strcmp(*argv, "-srpuserseed") == 0)
1234                         {
1235                         if (--argc < 1) goto bad;
1236                         srpuserseed = *(++argv);
1237                         meth = TLSv1_server_method();
1238                         }
1239 #endif
1240                 else if (strcmp(*argv,"-www") == 0)
1241                         { www=1; }
1242                 else if (strcmp(*argv,"-WWW") == 0)
1243                         { www=2; }
1244                 else if (strcmp(*argv,"-HTTP") == 0)
1245                         { www=3; }
1246                 else if (strcmp(*argv,"-no_ssl2") == 0)
1247                         { off|=SSL_OP_NO_SSLv2; }
1248                 else if (strcmp(*argv,"-no_ssl3") == 0)
1249                         { off|=SSL_OP_NO_SSLv3; }
1250                 else if (strcmp(*argv,"-no_tls1_2") == 0)
1251                         { off|=SSL_OP_NO_TLSv1_2; }
1252                 else if (strcmp(*argv,"-no_tls1_1") == 0)
1253                         { off|=SSL_OP_NO_TLSv1_1; }
1254                 else if (strcmp(*argv,"-no_tls1") == 0)
1255                         { off|=SSL_OP_NO_TLSv1; }
1256                 else if (strcmp(*argv,"-no_comp") == 0)
1257                         { off|=SSL_OP_NO_COMPRESSION; }
1258 #ifndef OPENSSL_NO_TLSEXT
1259                 else if (strcmp(*argv,"-no_ticket") == 0)
1260                         { off|=SSL_OP_NO_TICKET; }
1261 #endif
1262 #ifndef OPENSSL_NO_SSL2
1263                 else if (strcmp(*argv,"-ssl2") == 0)
1264                         { meth=SSLv2_server_method(); }
1265 #endif
1266 #ifndef OPENSSL_NO_SSL3
1267                 else if (strcmp(*argv,"-ssl3") == 0)
1268                         { meth=SSLv3_server_method(); }
1269 #endif
1270 #ifndef OPENSSL_NO_TLS1
1271                 else if (strcmp(*argv,"-tls1_2") == 0)
1272                         { meth=TLSv1_2_server_method(); }
1273                 else if (strcmp(*argv,"-tls1_1") == 0)
1274                         { meth=TLSv1_1_server_method(); }
1275                 else if (strcmp(*argv,"-tls1") == 0)
1276                         { meth=TLSv1_server_method(); }
1277                 else if (strcmp(*argv,"-tls1_1") == 0)
1278                         { meth=TLSv1_1_server_method(); }
1279 #endif
1280 #ifndef OPENSSL_NO_DTLS1
1281                 else if (strcmp(*argv,"-dtls1") == 0)
1282                         { 
1283                         meth=DTLSv1_server_method();
1284                         socket_type = SOCK_DGRAM;
1285                         }
1286                 else if (strcmp(*argv,"-timeout") == 0)
1287                         enable_timeouts = 1;
1288                 else if (strcmp(*argv,"-mtu") == 0)
1289                         {
1290                         if (--argc < 1) goto bad;
1291                         socket_mtu = atol(*(++argv));
1292                         }
1293                 else if (strcmp(*argv, "-chain") == 0)
1294                         cert_chain = 1;
1295 #endif
1296                 else if (strcmp(*argv, "-id_prefix") == 0)
1297                         {
1298                         if (--argc < 1) goto bad;
1299                         session_id_prefix = *(++argv);
1300                         }
1301 #ifndef OPENSSL_NO_ENGINE
1302                 else if (strcmp(*argv,"-engine") == 0)
1303                         {
1304                         if (--argc < 1) goto bad;
1305                         engine_id= *(++argv);
1306                         }
1307 #endif
1308                 else if (strcmp(*argv,"-rand") == 0)
1309                         {
1310                         if (--argc < 1) goto bad;
1311                         inrand= *(++argv);
1312                         }
1313 #ifndef OPENSSL_NO_TLSEXT
1314                 else if (strcmp(*argv,"-servername") == 0)
1315                         {
1316                         if (--argc < 1) goto bad;
1317                         tlsextcbp.servername= *(++argv);
1318                         }
1319                 else if (strcmp(*argv,"-servername_fatal") == 0)
1320                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1321                 else if (strcmp(*argv,"-cert2") == 0)
1322                         {
1323                         if (--argc < 1) goto bad;
1324                         s_cert_file2= *(++argv);
1325                         }
1326                 else if (strcmp(*argv,"-key2") == 0)
1327                         {
1328                         if (--argc < 1) goto bad;
1329                         s_key_file2= *(++argv);
1330                         }
1331 # ifndef OPENSSL_NO_NEXTPROTONEG
1332                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1333                         {
1334                         if (--argc < 1) goto bad;
1335                         next_proto_neg_in = *(++argv);
1336                         }
1337 # endif
1338 #endif
1339 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1340                 else if (strcmp(*argv,"-jpake") == 0)
1341                         {
1342                         if (--argc < 1) goto bad;
1343                         jpake_secret = *(++argv);
1344                         }
1345 #endif
1346                 else if (strcmp(*argv,"-use_srtp") == 0)
1347                         {
1348                         if (--argc < 1) goto bad;
1349                         srtp_profiles = *(++argv);
1350                         }
1351                 else if (strcmp(*argv,"-keymatexport") == 0)
1352                         {
1353                         if (--argc < 1) goto bad;
1354                         keymatexportlabel= *(++argv);
1355                         }
1356                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1357                         {
1358                         if (--argc < 1) goto bad;
1359                         keymatexportlen=atoi(*(++argv));
1360                         if (keymatexportlen == 0) goto bad;
1361                         }
1362                 else
1363                         {
1364                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1365                         badop=1;
1366                         break;
1367                         }
1368                 argc--;
1369                 argv++;
1370                 }
1371         if (badop)
1372                 {
1373 bad:
1374                 sv_usage();
1375                 goto end;
1376                 }
1377
1378 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1379         if (jpake_secret)
1380                 {
1381                 if (psk_key)
1382                         {
1383                         BIO_printf(bio_err,
1384                                    "Can't use JPAKE and PSK together\n");
1385                         goto end;
1386                         }
1387                 psk_identity = "JPAKE";
1388                 if (cipher)
1389                         {
1390                         BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1391                         goto end;
1392                         }
1393                 cipher = "PSK";
1394                 }
1395
1396 #endif
1397
1398         SSL_load_error_strings();
1399         OpenSSL_add_ssl_algorithms();
1400
1401 #ifndef OPENSSL_NO_ENGINE
1402         e = setup_engine(bio_err, engine_id, 1);
1403 #endif
1404
1405         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1406                 {
1407                 BIO_printf(bio_err, "Error getting password\n");
1408                 goto end;
1409                 }
1410
1411
1412         if (s_key_file == NULL)
1413                 s_key_file = s_cert_file;
1414 #ifndef OPENSSL_NO_TLSEXT
1415         if (s_key_file2 == NULL)
1416                 s_key_file2 = s_cert_file2;
1417 #endif
1418
1419         if (nocert == 0)
1420                 {
1421                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1422                        "server certificate private key file");
1423                 if (!s_key)
1424                         {
1425                         ERR_print_errors(bio_err);
1426                         goto end;
1427                         }
1428
1429                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1430                         NULL, e, "server certificate file");
1431
1432                 if (!s_cert)
1433                         {
1434                         ERR_print_errors(bio_err);
1435                         goto end;
1436                         }
1437
1438 #ifndef OPENSSL_NO_TLSEXT
1439                 if (tlsextcbp.servername) 
1440                         {
1441                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1442                                 "second server certificate private key file");
1443                         if (!s_key2)
1444                                 {
1445                                 ERR_print_errors(bio_err);
1446                                 goto end;
1447                                 }
1448                         
1449                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1450                                 NULL, e, "second server certificate file");
1451                         
1452                         if (!s_cert2)
1453                                 {
1454                                 ERR_print_errors(bio_err);
1455                                 goto end;
1456                                 }
1457                         }
1458 # ifndef OPENSSL_NO_NEXTPROTONEG
1459                 if (next_proto_neg_in)
1460                         {
1461                         unsigned short len;
1462                         next_proto.data = next_protos_parse(&len,
1463                                 next_proto_neg_in);
1464                         if (next_proto.data == NULL)
1465                                 goto end;
1466                         next_proto.len = len;
1467                         }
1468                 else
1469                         {
1470                         next_proto.data = NULL;
1471                         }
1472 # endif
1473 #endif
1474                 }
1475
1476
1477         if (s_dcert_file)
1478                 {
1479
1480                 if (s_dkey_file == NULL)
1481                         s_dkey_file = s_dcert_file;
1482
1483                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1484                                 0, dpass, e,
1485                                "second certificate private key file");
1486                 if (!s_dkey)
1487                         {
1488                         ERR_print_errors(bio_err);
1489                         goto end;
1490                         }
1491
1492                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1493                                 NULL, e, "second server certificate file");
1494
1495                 if (!s_dcert)
1496                         {
1497                         ERR_print_errors(bio_err);
1498                         goto end;
1499                         }
1500
1501                 }
1502
1503         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1504                 && !RAND_status())
1505                 {
1506                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1507                 }
1508         if (inrand != NULL)
1509                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1510                         app_RAND_load_files(inrand));
1511
1512         if (bio_s_out == NULL)
1513                 {
1514                 if (s_quiet && !s_debug && !s_msg)
1515                         {
1516                         bio_s_out=BIO_new(BIO_s_null());
1517                         }
1518                 else
1519                         {
1520                         if (bio_s_out == NULL)
1521                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1522                         }
1523                 }
1524
1525 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1526         if (nocert)
1527 #endif
1528                 {
1529                 s_cert_file=NULL;
1530                 s_key_file=NULL;
1531                 s_dcert_file=NULL;
1532                 s_dkey_file=NULL;
1533 #ifndef OPENSSL_NO_TLSEXT
1534                 s_cert_file2=NULL;
1535                 s_key_file2=NULL;
1536 #endif
1537                 }
1538
1539         ctx=SSL_CTX_new(meth);
1540         if (ctx == NULL)
1541                 {
1542                 ERR_print_errors(bio_err);
1543                 goto end;
1544                 }
1545         if (session_id_prefix)
1546                 {
1547                 if(strlen(session_id_prefix) >= 32)
1548                         BIO_printf(bio_err,
1549 "warning: id_prefix is too long, only one new session will be possible\n");
1550                 else if(strlen(session_id_prefix) >= 16)
1551                         BIO_printf(bio_err,
1552 "warning: id_prefix is too long if you use SSLv2\n");
1553                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1554                         {
1555                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1556                         ERR_print_errors(bio_err);
1557                         goto end;
1558                         }
1559                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1560                 }
1561         SSL_CTX_set_quiet_shutdown(ctx,1);
1562         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1563         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1564         SSL_CTX_set_options(ctx,off);
1565         /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1566          * Setting read ahead solves this problem.
1567          */
1568         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1569
1570         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1571         if (no_cache)
1572                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1573         else if (ext_cache)
1574                 init_session_cache_ctx(ctx);
1575         else
1576                 SSL_CTX_sess_set_cache_size(ctx,128);
1577
1578         if (srtp_profiles != NULL)
1579                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1580
1581 #if 0
1582         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1583 #endif
1584
1585 #if 0
1586         if (s_cert_file == NULL)
1587                 {
1588                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1589                 goto end;
1590                 }
1591 #endif
1592
1593         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1594                 (!SSL_CTX_set_default_verify_paths(ctx)))
1595                 {
1596                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1597                 ERR_print_errors(bio_err);
1598                 /* goto end; */
1599                 }
1600         if (vpm)
1601                 SSL_CTX_set1_param(ctx, vpm);
1602
1603 #ifndef OPENSSL_NO_TLSEXT
1604         if (s_cert2)
1605                 {
1606                 ctx2=SSL_CTX_new(meth);
1607                 if (ctx2 == NULL)
1608                         {
1609                         ERR_print_errors(bio_err);
1610                         goto end;
1611                         }
1612                 }
1613         
1614         if (ctx2)
1615                 {
1616                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1617
1618                 if (session_id_prefix)
1619                         {
1620                         if(strlen(session_id_prefix) >= 32)
1621                                 BIO_printf(bio_err,
1622                                         "warning: id_prefix is too long, only one new session will be possible\n");
1623                         else if(strlen(session_id_prefix) >= 16)
1624                                 BIO_printf(bio_err,
1625                                         "warning: id_prefix is too long if you use SSLv2\n");
1626                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1627                                 {
1628                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1629                                 ERR_print_errors(bio_err);
1630                                 goto end;
1631                                 }
1632                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1633                         }
1634                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1635                 if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1636                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1637                 SSL_CTX_set_options(ctx2,off);
1638                 /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1639                  * Setting read ahead solves this problem.
1640                  */
1641                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1642
1643                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1644
1645                 if (no_cache)
1646                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1647                 else if (ext_cache)
1648                         init_session_cache_ctx(ctx2);
1649                 else
1650                         SSL_CTX_sess_set_cache_size(ctx2,128);
1651
1652                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1653                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1654                         {
1655                         ERR_print_errors(bio_err);
1656                         }
1657                 if (vpm)
1658                         SSL_CTX_set1_param(ctx2, vpm);
1659                 }
1660
1661 # ifndef OPENSSL_NO_NEXTPROTONEG
1662         if (next_proto.data)
1663                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1664 # endif
1665 #endif 
1666
1667 #ifndef OPENSSL_NO_DH
1668         if (!no_dhe)
1669                 {
1670                 DH *dh=NULL;
1671
1672                 if (dhfile)
1673                         dh = load_dh_param(dhfile);
1674                 else if (s_cert_file)
1675                         dh = load_dh_param(s_cert_file);
1676
1677                 if (dh != NULL)
1678                         {
1679                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1680                         }
1681                 else
1682                         {
1683                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1684                         dh=get_dh512();
1685                         }
1686                 (void)BIO_flush(bio_s_out);
1687
1688                 SSL_CTX_set_tmp_dh(ctx,dh);
1689 #ifndef OPENSSL_NO_TLSEXT
1690                 if (ctx2)
1691                         {
1692                         if (!dhfile)
1693                                 { 
1694                                 DH *dh2=load_dh_param(s_cert_file2);
1695                                 if (dh2 != NULL)
1696                                         {
1697                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1698                                         (void)BIO_flush(bio_s_out);
1699
1700                                         DH_free(dh);
1701                                         dh = dh2;
1702                                         }
1703                                 }
1704                         SSL_CTX_set_tmp_dh(ctx2,dh);
1705                         }
1706 #endif
1707                 DH_free(dh);
1708                 }
1709 #endif
1710
1711 #ifndef OPENSSL_NO_ECDH
1712         if (!no_ecdhe)
1713                 {
1714                 EC_KEY *ecdh=NULL;
1715
1716                 if (named_curve && strcmp(named_curve, "auto"))
1717                         {
1718                         int nid = EC_curve_nist2nid(named_curve);
1719                         if (nid == NID_undef)
1720                                 nid = OBJ_sn2nid(named_curve);
1721                         if (nid == 0)
1722                                 {
1723                                 BIO_printf(bio_err, "unknown curve name (%s)\n", 
1724                                         named_curve);
1725                                 goto end;
1726                                 }
1727                         ecdh = EC_KEY_new_by_curve_name(nid);
1728                         if (ecdh == NULL)
1729                                 {
1730                                 BIO_printf(bio_err, "unable to create curve (%s)\n", 
1731                                         named_curve);
1732                                 goto end;
1733                                 }
1734                         }
1735
1736                 if (ecdh != NULL)
1737                         {
1738                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1739                         }
1740                 else if (named_curve)
1741                         SSL_CTX_set_ecdh_auto(ctx, 1);
1742                 else
1743                         {
1744                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1745                         ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
1746                         if (ecdh == NULL) 
1747                                 {
1748                                 BIO_printf(bio_err, "unable to create curve (nistp256)\n");
1749                                 goto end;
1750                                 }
1751                         }
1752                 (void)BIO_flush(bio_s_out);
1753
1754                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1755 #ifndef OPENSSL_NO_TLSEXT
1756                 if (ctx2) 
1757                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1758 #endif
1759                 EC_KEY_free(ecdh);
1760                 }
1761 #endif
1762         
1763         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1764                 goto end;
1765 #ifndef OPENSSL_NO_TLSEXT
1766         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1767                 goto end; 
1768 #endif
1769         if (s_dcert != NULL)
1770                 {
1771                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1772                         goto end;
1773                 }
1774
1775 #ifndef OPENSSL_NO_RSA
1776 #if 1
1777         if (!no_tmp_rsa)
1778                 {
1779                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1780 #ifndef OPENSSL_NO_TLSEXT
1781                 if (ctx2) 
1782                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1783 #endif          
1784                 }
1785 #else
1786         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1787                 {
1788                 RSA *rsa;
1789
1790                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1791                 BIO_flush(bio_s_out);
1792
1793                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1794
1795                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1796                         {
1797                         ERR_print_errors(bio_err);
1798                         goto end;
1799                         }
1800 #ifndef OPENSSL_NO_TLSEXT
1801                         if (ctx2)
1802                                 {
1803                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1804                                         {
1805                                         ERR_print_errors(bio_err);
1806                                         goto end;
1807                                         }
1808                                 }
1809 #endif
1810                 RSA_free(rsa);
1811                 BIO_printf(bio_s_out,"\n");
1812                 }
1813 #endif
1814 #endif
1815
1816         if (no_resume_ephemeral)
1817                 {
1818                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
1819 #ifndef OPENSSL_NO_TLSEXT
1820                 if (ctx2)
1821                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
1822 #endif
1823                 }
1824
1825 #ifndef OPENSSL_NO_PSK
1826 #ifdef OPENSSL_NO_JPAKE
1827         if (psk_key != NULL)
1828 #else
1829         if (psk_key != NULL || jpake_secret)
1830 #endif
1831                 {
1832                 if (s_debug)
1833                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
1834                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1835                 }
1836
1837         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1838                 {
1839                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1840                 ERR_print_errors(bio_err);
1841                 goto end;
1842                 }
1843 #endif
1844
1845         if (cipher != NULL)
1846                 {
1847                 if(!SSL_CTX_set_cipher_list(ctx,cipher))
1848                         {
1849                         BIO_printf(bio_err,"error setting cipher list\n");
1850                         ERR_print_errors(bio_err);
1851                         goto end;
1852                         }
1853 #ifndef OPENSSL_NO_TLSEXT
1854                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1855                         {
1856                         BIO_printf(bio_err,"error setting cipher list\n");
1857                         ERR_print_errors(bio_err);
1858                         goto end;
1859                         }
1860 #endif
1861                 }
1862 #ifndef OPENSSL_NO_TLSEXT
1863         if (curves)
1864                 {
1865                 if(!SSL_CTX_set1_curves_list(ctx,curves))
1866                         {
1867                         BIO_printf(bio_err,"error setting curves list\n");
1868                         ERR_print_errors(bio_err);
1869                         goto end;
1870                         }
1871                 if(ctx2 && !SSL_CTX_set1_curves_list(ctx2,curves))
1872                         {
1873                         BIO_printf(bio_err,"error setting curves list\n");
1874                         ERR_print_errors(bio_err);
1875                         goto end;
1876                         }
1877                 }
1878 #endif
1879         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1880         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1881                 sizeof s_server_session_id_context);
1882
1883         /* Set DTLS cookie generation and verification callbacks */
1884         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1885         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1886
1887 #ifndef OPENSSL_NO_TLSEXT
1888         if (ctx2)
1889                 {
1890                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1891                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1892                         sizeof s_server_session_id_context);
1893
1894                 tlsextcbp.biodebug = bio_s_out;
1895                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1896                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1897                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1898                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1899                 }
1900 #endif
1901
1902 #ifndef OPENSSL_NO_SRP
1903         if (srp_verifier_file != NULL)
1904                 {
1905                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
1906                 srp_callback_parm.user = NULL;
1907                 srp_callback_parm.login = NULL;
1908                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
1909                         {
1910                         BIO_printf(bio_err,
1911                                            "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1912                                            srp_verifier_file,ret);
1913                                 goto end;
1914                         }
1915                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
1916                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);                        
1917                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1918                 }
1919         else
1920 #endif
1921         if (CAfile != NULL)
1922                 {
1923                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1924 #ifndef OPENSSL_NO_TLSEXT
1925                 if (ctx2) 
1926                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1927 #endif
1928                 }
1929
1930         BIO_printf(bio_s_out,"ACCEPT\n");
1931         (void)BIO_flush(bio_s_out);
1932         if (www)
1933                 do_server(port,socket_type,&accept_socket,www_body, context);
1934         else
1935                 do_server(port,socket_type,&accept_socket,sv_body, context);
1936         print_stats(bio_s_out,ctx);
1937         ret=0;
1938 end:
1939         if (ctx != NULL) SSL_CTX_free(ctx);
1940         if (s_cert)
1941                 X509_free(s_cert);
1942         if (s_dcert)
1943                 X509_free(s_dcert);
1944         if (s_key)
1945                 EVP_PKEY_free(s_key);
1946         if (s_dkey)
1947                 EVP_PKEY_free(s_dkey);
1948         if (pass)
1949                 OPENSSL_free(pass);
1950         if (dpass)
1951                 OPENSSL_free(dpass);
1952         free_sessions();
1953 #ifndef OPENSSL_NO_TLSEXT
1954         if (ctx2 != NULL) SSL_CTX_free(ctx2);
1955         if (s_cert2)
1956                 X509_free(s_cert2);
1957         if (s_key2)
1958                 EVP_PKEY_free(s_key2);
1959 #endif
1960         if (bio_s_out != NULL)
1961                 {
1962         BIO_free(bio_s_out);
1963                 bio_s_out=NULL;
1964                 }
1965         apps_shutdown();
1966         OPENSSL_EXIT(ret);
1967         }
1968
1969 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1970         {
1971         BIO_printf(bio,"%4ld items in the session cache\n",
1972                 SSL_CTX_sess_number(ssl_ctx));
1973         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1974                 SSL_CTX_sess_connect(ssl_ctx));
1975         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1976                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1977         BIO_printf(bio,"%4ld client connects that finished\n",
1978                 SSL_CTX_sess_connect_good(ssl_ctx));
1979         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1980                 SSL_CTX_sess_accept(ssl_ctx));
1981         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1982                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1983         BIO_printf(bio,"%4ld server accepts that finished\n",
1984                 SSL_CTX_sess_accept_good(ssl_ctx));
1985         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1986         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1987         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1988         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1989         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1990                 SSL_CTX_sess_cache_full(ssl_ctx),
1991                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1992         }
1993
1994 static int sv_body(char *hostname, int s, unsigned char *context)
1995         {
1996         char *buf=NULL;
1997         fd_set readfds;
1998         int ret=1,width;
1999         int k,i;
2000         unsigned long l;
2001         SSL *con=NULL;
2002         BIO *sbio;
2003 #ifndef OPENSSL_NO_KRB5
2004         KSSL_CTX *kctx;
2005 #endif
2006         struct timeval timeout;
2007 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
2008         struct timeval tv;
2009 #else
2010         struct timeval *timeoutp;
2011 #endif
2012
2013         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
2014                 {
2015                 BIO_printf(bio_err,"out of memory\n");
2016                 goto err;
2017                 }
2018 #ifdef FIONBIO  
2019         if (s_nbio)
2020                 {
2021                 unsigned long sl=1;
2022
2023                 if (!s_quiet)
2024                         BIO_printf(bio_err,"turning on non blocking io\n");
2025                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2026                         ERR_print_errors(bio_err);
2027                 }
2028 #endif
2029
2030         if (con == NULL) {
2031                 con=SSL_new(ctx);
2032 #ifndef OPENSSL_NO_TLSEXT
2033         if (s_tlsextdebug)
2034                 {
2035                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2036                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2037                 }
2038         if (s_tlsextstatus)
2039                 {
2040                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2041                 tlscstatp.err = bio_err;
2042                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2043                 }
2044 #endif
2045 #ifndef OPENSSL_NO_KRB5
2046                 if ((kctx = kssl_ctx_new()) != NULL)
2047                         {
2048                         SSL_set0_kssl_ctx(con, kctx);
2049                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2050                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2051                         }
2052 #endif  /* OPENSSL_NO_KRB5 */
2053                 if(context)
2054                       SSL_set_session_id_context(con, context,
2055                                                  strlen((char *)context));
2056         }
2057         SSL_clear(con);
2058 #if 0
2059 #ifdef TLSEXT_TYPE_opaque_prf_input
2060         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2061 #endif
2062 #endif
2063
2064         if (SSL_version(con) == DTLS1_VERSION)
2065                 {
2066
2067                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2068
2069                 if (enable_timeouts)
2070                         {
2071                         timeout.tv_sec = 0;
2072                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2073                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2074                         
2075                         timeout.tv_sec = 0;
2076                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2077                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2078                         }
2079
2080                 if (socket_mtu > 28)
2081                         {
2082                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2083                         SSL_set_mtu(con, socket_mtu - 28);
2084                         }
2085                 else
2086                         /* want to do MTU discovery */
2087                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2088
2089         /* turn on cookie exchange */
2090         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2091                 }
2092         else
2093                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2094
2095         if (s_nbio_test)
2096                 {
2097                 BIO *test;
2098
2099                 test=BIO_new(BIO_f_nbio_test());
2100                 sbio=BIO_push(test,sbio);
2101                 }
2102 #ifndef OPENSSL_NO_JPAKE
2103         if(jpake_secret)
2104                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2105 #endif
2106
2107         SSL_set_bio(con,sbio,sbio);
2108         SSL_set_accept_state(con);
2109         /* SSL_set_fd(con,s); */
2110
2111         if (s_debug)
2112                 {
2113                 SSL_set_debug(con, 1);
2114                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2115                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2116                 }
2117         if (s_msg)
2118                 {
2119                 SSL_set_msg_callback(con, msg_cb);
2120                 SSL_set_msg_callback_arg(con, bio_s_out);
2121                 }
2122 #ifndef OPENSSL_NO_TLSEXT
2123         if (s_tlsextdebug)
2124                 {
2125                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2126                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2127                 }
2128 #endif
2129
2130         width=s+1;
2131         for (;;)
2132                 {
2133                 int read_from_terminal;
2134                 int read_from_sslcon;
2135
2136                 read_from_terminal = 0;
2137                 read_from_sslcon = SSL_pending(con);
2138
2139                 if (!read_from_sslcon)
2140                         {
2141                         FD_ZERO(&readfds);
2142 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2143                         openssl_fdset(fileno(stdin),&readfds);
2144 #endif
2145                         openssl_fdset(s,&readfds);
2146                         /* Note: under VMS with SOCKETSHR the second parameter is
2147                          * currently of type (int *) whereas under other systems
2148                          * it is (void *) if you don't have a cast it will choke
2149                          * the compiler: if you do have a cast then you can either
2150                          * go for (int *) or (void *).
2151                          */
2152 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2153                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2154                          * on sockets. As a workaround we timeout the select every
2155                          * second and check for any keypress. In a proper Windows
2156                          * application we wouldn't do this because it is inefficient.
2157                          */
2158                         tv.tv_sec = 1;
2159                         tv.tv_usec = 0;
2160                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2161                         if((i < 0) || (!i && !_kbhit() ) )continue;
2162                         if(_kbhit())
2163                                 read_from_terminal = 1;
2164 #elif defined(OPENSSL_SYS_BEOS_R5)
2165                         /* Under BeOS-R5 the situation is similar to DOS */
2166                         tv.tv_sec = 1;
2167                         tv.tv_usec = 0;
2168                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2169                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2170                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2171                                 continue;
2172                         if (read(fileno(stdin), buf, 0) >= 0)
2173                                 read_from_terminal = 1;
2174                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2175 #else
2176                         if ((SSL_version(con) == DTLS1_VERSION) &&
2177                                 DTLSv1_get_timeout(con, &timeout))
2178                                 timeoutp = &timeout;
2179                         else
2180                                 timeoutp = NULL;
2181
2182                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2183
2184                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2185                                 {
2186                                 BIO_printf(bio_err,"TIMEOUT occured\n");
2187                                 }
2188
2189                         if (i <= 0) continue;
2190                         if (FD_ISSET(fileno(stdin),&readfds))
2191                                 read_from_terminal = 1;
2192 #endif
2193                         if (FD_ISSET(s,&readfds))
2194                                 read_from_sslcon = 1;
2195                         }
2196                 if (read_from_terminal)
2197                         {
2198                         if (s_crlf)
2199                                 {
2200                                 int j, lf_num;
2201
2202                                 i=raw_read_stdin(buf, bufsize/2);
2203                                 lf_num = 0;
2204                                 /* both loops are skipped when i <= 0 */
2205                                 for (j = 0; j < i; j++)
2206                                         if (buf[j] == '\n')
2207                                                 lf_num++;
2208                                 for (j = i-1; j >= 0; j--)
2209                                         {
2210                                         buf[j+lf_num] = buf[j];
2211                                         if (buf[j] == '\n')
2212                                                 {
2213                                                 lf_num--;
2214                                                 i++;
2215                                                 buf[j+lf_num] = '\r';
2216                                                 }
2217                                         }
2218                                 assert(lf_num == 0);
2219                                 }
2220                         else
2221                                 i=raw_read_stdin(buf,bufsize);
2222                         if (!s_quiet)
2223                                 {
2224                                 if ((i <= 0) || (buf[0] == 'Q'))
2225                                         {
2226                                         BIO_printf(bio_s_out,"DONE\n");
2227                                         SHUTDOWN(s);
2228                                         close_accept_socket();
2229                                         ret= -11;
2230                                         goto err;
2231                                         }
2232                                 if ((i <= 0) || (buf[0] == 'q'))
2233                                         {
2234                                         BIO_printf(bio_s_out,"DONE\n");
2235                                         if (SSL_version(con) != DTLS1_VERSION)
2236                         SHUTDOWN(s);
2237         /*                              close_accept_socket();
2238                                         ret= -11;*/
2239                                         goto err;
2240                                         }
2241
2242 #ifndef OPENSSL_NO_HEARTBEATS
2243                                 if ((buf[0] == 'B') &&
2244                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2245                                         {
2246                                         BIO_printf(bio_err,"HEARTBEATING\n");
2247                                         SSL_heartbeat(con);
2248                                         i=0;
2249                                         continue;
2250                                         }
2251 #endif
2252                                 if ((buf[0] == 'r') && 
2253                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2254                                         {
2255                                         SSL_renegotiate(con);
2256                                         i=SSL_do_handshake(con);
2257                                         printf("SSL_do_handshake -> %d\n",i);
2258                                         i=0; /*13; */
2259                                         continue;
2260                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2261                                         }
2262                                 if ((buf[0] == 'R') &&
2263                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2264                                         {
2265                                         SSL_set_verify(con,
2266                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2267                                         SSL_renegotiate(con);
2268                                         i=SSL_do_handshake(con);
2269                                         printf("SSL_do_handshake -> %d\n",i);
2270                                         i=0; /* 13; */
2271                                         continue;
2272                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2273                                         }
2274                                 if (buf[0] == 'P')
2275                                         {
2276                                         static const char *str="Lets print some clear text\n";
2277                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2278                                         }
2279                                 if (buf[0] == 'S')
2280                                         {
2281                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2282                                         }
2283                                 }
2284 #ifdef CHARSET_EBCDIC
2285                         ebcdic2ascii(buf,buf,i);
2286 #endif
2287                         l=k=0;
2288                         for (;;)
2289                                 {
2290                                 /* should do a select for the write */
2291 #ifdef RENEG
2292 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2293 #endif
2294                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2295 #ifndef OPENSSL_NO_SRP
2296                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2297                                         {
2298                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2299                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2300                                         if (srp_callback_parm.user) 
2301                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2302                                         else 
2303                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2304                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2305                                         }
2306 #endif
2307                                 switch (SSL_get_error(con,k))
2308                                         {
2309                                 case SSL_ERROR_NONE:
2310                                         break;
2311                                 case SSL_ERROR_WANT_WRITE:
2312                                 case SSL_ERROR_WANT_READ:
2313                                 case SSL_ERROR_WANT_X509_LOOKUP:
2314                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2315                                         break;
2316                                 case SSL_ERROR_SYSCALL:
2317                                 case SSL_ERROR_SSL:
2318                                         BIO_printf(bio_s_out,"ERROR\n");
2319                                         ERR_print_errors(bio_err);
2320                                         ret=1;
2321                                         goto err;
2322                                         /* break; */
2323                                 case SSL_ERROR_ZERO_RETURN:
2324                                         BIO_printf(bio_s_out,"DONE\n");
2325                                         ret=1;
2326                                         goto err;
2327                                         }
2328                                 l+=k;
2329                                 i-=k;
2330                                 if (i <= 0) break;
2331                                 }
2332                         }
2333                 if (read_from_sslcon)
2334                         {
2335                         if (!SSL_is_init_finished(con))
2336                                 {
2337                                 i=init_ssl_connection(con);
2338                                 
2339                                 if (i < 0)
2340                                         {
2341                                         ret=0;
2342                                         goto err;
2343                                         }
2344                                 else if (i == 0)
2345                                         {
2346                                         ret=1;
2347                                         goto err;
2348                                         }
2349                                 }
2350                         else
2351                                 {
2352 again:  
2353                                 i=SSL_read(con,(char *)buf,bufsize);
2354 #ifndef OPENSSL_NO_SRP
2355                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2356                                         {
2357                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2358                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2359                                         if (srp_callback_parm.user) 
2360                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2361                                         else 
2362                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2363                                         i=SSL_read(con,(char *)buf,bufsize);
2364                                         }
2365 #endif
2366                                 switch (SSL_get_error(con,i))
2367                                         {
2368                                 case SSL_ERROR_NONE:
2369 #ifdef CHARSET_EBCDIC
2370                                         ascii2ebcdic(buf,buf,i);
2371 #endif
2372                                         raw_write_stdout(buf,
2373                                                 (unsigned int)i);
2374                                         if (SSL_pending(con)) goto again;
2375                                         break;
2376                                 case SSL_ERROR_WANT_WRITE:
2377                                 case SSL_ERROR_WANT_READ:
2378                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2379                                         break;
2380                                 case SSL_ERROR_SYSCALL:
2381                                 case SSL_ERROR_SSL:
2382                                         BIO_printf(bio_s_out,"ERROR\n");
2383                                         ERR_print_errors(bio_err);
2384                                         ret=1;
2385                                         goto err;
2386                                 case SSL_ERROR_ZERO_RETURN:
2387                                         BIO_printf(bio_s_out,"DONE\n");
2388                                         ret=1;
2389                                         goto err;
2390                                         }
2391                                 }
2392                         }
2393                 }
2394 err:
2395         if (con != NULL)
2396                 {
2397                 BIO_printf(bio_s_out,"shutting down SSL\n");
2398 #if 1
2399                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2400 #else
2401                 SSL_shutdown(con);
2402 #endif
2403                 SSL_free(con);
2404                 }
2405         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2406         if (buf != NULL)
2407                 {
2408                 OPENSSL_cleanse(buf,bufsize);
2409                 OPENSSL_free(buf);
2410                 }
2411         if (ret >= 0)
2412                 BIO_printf(bio_s_out,"ACCEPT\n");
2413         return(ret);
2414         }
2415
2416 static void close_accept_socket(void)
2417         {
2418         BIO_printf(bio_err,"shutdown accept socket\n");
2419         if (accept_socket >= 0)
2420                 {
2421                 SHUTDOWN2(accept_socket);
2422                 }
2423         }
2424
2425 static int init_ssl_connection(SSL *con)
2426         {
2427         int i;
2428         const char *str;
2429         X509 *peer;
2430         long verify_error;
2431         MS_STATIC char buf[BUFSIZ];
2432 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2433         const unsigned char *next_proto_neg;
2434         unsigned next_proto_neg_len;
2435 #endif
2436 #ifndef OPENSSL_NO_KRB5
2437         char *client_princ;
2438 #endif
2439         unsigned char *exportedkeymat;
2440
2441
2442         i=SSL_accept(con);
2443 #ifndef OPENSSL_NO_SRP
2444         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2445                 {
2446                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2447                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2448                         if (srp_callback_parm.user) 
2449                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2450                         else 
2451                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2452                         i=SSL_accept(con);
2453                 }
2454 #endif
2455         if (i <= 0)
2456                 {
2457                 if (BIO_sock_should_retry(i))
2458                         {
2459                         BIO_printf(bio_s_out,"DELAY\n");
2460                         return(1);
2461                         }
2462
2463                 BIO_printf(bio_err,"ERROR\n");
2464                 verify_error=SSL_get_verify_result(con);
2465                 if (verify_error != X509_V_OK)
2466                         {
2467                         BIO_printf(bio_err,"verify error:%s\n",
2468                                 X509_verify_cert_error_string(verify_error));
2469                         }
2470                 else
2471                         ERR_print_errors(bio_err);
2472                 return(0);
2473                 }
2474
2475         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2476
2477         peer=SSL_get_peer_certificate(con);
2478         if (peer != NULL)
2479                 {
2480                 BIO_printf(bio_s_out,"Client certificate\n");
2481                 PEM_write_bio_X509(bio_s_out,peer);
2482                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2483                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2484                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2485                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2486                 X509_free(peer);
2487                 }
2488
2489         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2490                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2491         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2492         ssl_print_sigalgs(bio_s_out, con);
2493         ssl_print_curves(bio_s_out, con);
2494         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2495
2496 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2497         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2498         if (next_proto_neg)
2499                 {
2500                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2501                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2502                 BIO_printf(bio_s_out, "\n");
2503                 }
2504 #endif
2505         {
2506         SRTP_PROTECTION_PROFILE *srtp_profile
2507           = SSL_get_selected_srtp_profile(con);
2508
2509         if(srtp_profile)
2510                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2511                            srtp_profile->name);
2512         }
2513         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2514         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2515                 TLS1_FLAGS_TLS_PADDING_BUG)
2516                 BIO_printf(bio_s_out,
2517                            "Peer has incorrect TLSv1 block padding\n");
2518 #ifndef OPENSSL_NO_KRB5
2519         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2520         if (client_princ != NULL)
2521                 {
2522                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2523                                                                 client_princ);
2524                 }
2525 #endif /* OPENSSL_NO_KRB5 */
2526         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2527                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2528         if (keymatexportlabel != NULL)
2529                 {
2530                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2531                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2532                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2533                            keymatexportlen);
2534                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2535                 if (exportedkeymat != NULL)
2536                         {
2537                         if (!SSL_export_keying_material(con, exportedkeymat,
2538                                                         keymatexportlen,
2539                                                         keymatexportlabel,
2540                                                         strlen(keymatexportlabel),
2541                                                         NULL, 0, 0))
2542                                 {
2543                                 BIO_printf(bio_s_out, "    Error\n");
2544                                 }
2545                         else
2546                                 {
2547                                 BIO_printf(bio_s_out, "    Keying material: ");
2548                                 for (i=0; i<keymatexportlen; i++)
2549                                         BIO_printf(bio_s_out, "%02X",
2550                                                    exportedkeymat[i]);
2551                                 BIO_printf(bio_s_out, "\n");
2552                                 }
2553                         OPENSSL_free(exportedkeymat);
2554                         }
2555                 }
2556
2557         return(1);
2558         }
2559
2560 #ifndef OPENSSL_NO_DH
2561 static DH *load_dh_param(const char *dhfile)
2562         {
2563         DH *ret=NULL;
2564         BIO *bio;
2565
2566         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2567                 goto err;
2568         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2569 err:
2570         if (bio != NULL) BIO_free(bio);
2571         return(ret);
2572         }
2573 #endif
2574
2575 #if 0
2576 static int load_CA(SSL_CTX *ctx, char *file)
2577         {
2578         FILE *in;
2579         X509 *x=NULL;
2580
2581         if ((in=fopen(file,"r")) == NULL)
2582                 return(0);
2583
2584         for (;;)
2585                 {
2586                 if (PEM_read_X509(in,&x,NULL) == NULL)
2587                         break;
2588                 SSL_CTX_add_client_CA(ctx,x);
2589                 }
2590         if (x != NULL) X509_free(x);
2591         fclose(in);
2592         return(1);
2593         }
2594 #endif
2595
2596 static int www_body(char *hostname, int s, unsigned char *context)
2597         {
2598         char *buf=NULL;
2599         int ret=1;
2600         int i,j,k,dot;
2601         SSL *con;
2602         const SSL_CIPHER *c;
2603         BIO *io,*ssl_bio,*sbio;
2604 #ifndef OPENSSL_NO_KRB5
2605         KSSL_CTX *kctx;
2606 #endif
2607
2608         buf=OPENSSL_malloc(bufsize);
2609         if (buf == NULL) return(0);
2610         io=BIO_new(BIO_f_buffer());
2611         ssl_bio=BIO_new(BIO_f_ssl());
2612         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2613
2614 #ifdef FIONBIO  
2615         if (s_nbio)
2616                 {
2617                 unsigned long sl=1;
2618
2619                 if (!s_quiet)
2620                         BIO_printf(bio_err,"turning on non blocking io\n");
2621                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2622                         ERR_print_errors(bio_err);
2623                 }
2624 #endif
2625
2626         /* lets make the output buffer a reasonable size */
2627         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2628
2629         if ((con=SSL_new(ctx)) == NULL) goto err;
2630 #ifndef OPENSSL_NO_TLSEXT
2631                 if (s_tlsextdebug)
2632                         {
2633                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2634                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2635                         }
2636 #endif
2637 #ifndef OPENSSL_NO_KRB5
2638         if ((kctx = kssl_ctx_new()) != NULL)
2639                 {
2640                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2641                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2642                 }
2643 #endif  /* OPENSSL_NO_KRB5 */
2644         if(context) SSL_set_session_id_context(con, context,
2645                                                strlen((char *)context));
2646
2647         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2648         if (s_nbio_test)
2649                 {
2650                 BIO *test;
2651
2652                 test=BIO_new(BIO_f_nbio_test());
2653                 sbio=BIO_push(test,sbio);
2654                 }
2655         SSL_set_bio(con,sbio,sbio);
2656         SSL_set_accept_state(con);
2657         /* SSL_set_fd(con,s); */
2658         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2659         BIO_push(io,ssl_bio);
2660 #ifdef CHARSET_EBCDIC
2661         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2662 #endif
2663
2664         if (s_debug)
2665                 {
2666                 SSL_set_debug(con, 1);
2667                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2668                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2669                 }
2670         if (s_msg)
2671                 {
2672                 SSL_set_msg_callback(con, msg_cb);
2673                 SSL_set_msg_callback_arg(con, bio_s_out);
2674                 }
2675
2676         for (;;)
2677                 {
2678                 if (hack)
2679                         {
2680                         i=SSL_accept(con);
2681 #ifndef OPENSSL_NO_SRP
2682                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP) 
2683                 {
2684                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2685                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login); 
2686                         if (srp_callback_parm.user) 
2687                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2688                         else 
2689                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2690                         i=SSL_accept(con);
2691                 }
2692 #endif
2693                         switch (SSL_get_error(con,i))
2694                                 {
2695                         case SSL_ERROR_NONE:
2696                                 break;
2697                         case SSL_ERROR_WANT_WRITE:
2698                         case SSL_ERROR_WANT_READ:
2699                         case SSL_ERROR_WANT_X509_LOOKUP:
2700                                 continue;
2701                         case SSL_ERROR_SYSCALL:
2702                         case SSL_ERROR_SSL:
2703                         case SSL_ERROR_ZERO_RETURN:
2704                                 ret=1;
2705                                 goto err;
2706                                 /* break; */
2707                                 }
2708
2709                         SSL_renegotiate(con);
2710                         SSL_write(con,NULL,0);
2711                         }
2712
2713                 i=BIO_gets(io,buf,bufsize-1);
2714                 if (i < 0) /* error */
2715                         {
2716                         if (!BIO_should_retry(io))
2717                                 {
2718                                 if (!s_quiet)
2719                                         ERR_print_errors(bio_err);
2720                                 goto err;
2721                                 }
2722                         else
2723                                 {
2724                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2725 #if defined(OPENSSL_SYS_NETWARE)
2726             delay(1000);
2727 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2728                                 sleep(1);
2729 #endif
2730                                 continue;
2731                                 }
2732                         }
2733                 else if (i == 0) /* end of input */
2734                         {
2735                         ret=1;
2736                         goto end;
2737                         }
2738
2739                 /* else we have data */
2740                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2741                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2742                         {
2743                         char *p;
2744                         X509 *peer;
2745                         STACK_OF(SSL_CIPHER) *sk;
2746                         static const char *space="                          ";
2747
2748                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
2749                         {
2750                         if (strncmp("GET /renegcert", buf, 14) == 0)
2751                                 SSL_set_verify(con,
2752                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2753                         i=SSL_renegotiate(con);
2754                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
2755                         i=SSL_do_handshake(con);
2756                         if (i <= 0)
2757                                 {
2758                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2759                                 ERR_print_errors(bio_err);
2760                                 goto err;
2761                                 }
2762                         /* EVIL HACK! */
2763                         SSL_set_state(con, SSL_ST_ACCEPT);
2764                         i=SSL_do_handshake(con);
2765                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
2766                         if (i <= 0)
2767                                 {
2768                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2769                                 ERR_print_errors(bio_err);
2770                                 goto err;
2771                                 }
2772                         }
2773
2774                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2775                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2776                         BIO_puts(io,"<pre>\n");
2777 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2778                         BIO_puts(io,"\n");
2779                         for (i=0; i<local_argc; i++)
2780                                 {
2781                                 BIO_puts(io,local_argv[i]);
2782                                 BIO_write(io," ",1);
2783                                 }
2784                         BIO_puts(io,"\n");
2785
2786                         BIO_printf(io,
2787                                 "Secure Renegotiation IS%s supported\n",
2788                                 SSL_get_secure_renegotiation_support(con) ?
2789                                                         "" : " NOT");
2790
2791                         /* The following is evil and should not really
2792                          * be done */
2793                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2794                         sk=SSL_get_ciphers(con);
2795                         j=sk_SSL_CIPHER_num(sk);
2796                         for (i=0; i<j; i++)
2797                                 {
2798                                 c=sk_SSL_CIPHER_value(sk,i);
2799                                 BIO_printf(io,"%-11s:%-25s",
2800                                         SSL_CIPHER_get_version(c),
2801                                         SSL_CIPHER_get_name(c));
2802                                 if ((((i+1)%2) == 0) && (i+1 != j))
2803                                         BIO_puts(io,"\n");
2804                                 }
2805                         BIO_puts(io,"\n");
2806                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2807                         if (p != NULL)
2808                                 {
2809                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2810                                 j=i=0;
2811                                 while (*p)
2812                                         {
2813                                         if (*p == ':')
2814                                                 {
2815                                                 BIO_write(io,space,26-j);
2816                                                 i++;
2817                                                 j=0;
2818                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2819                                                 }
2820                                         else
2821                                                 {
2822                                                 BIO_write(io,p,1);
2823                                                 j++;
2824                                                 }
2825                                         p++;
2826                                         }
2827                                 BIO_puts(io,"\n");
2828                                 }
2829                         ssl_print_sigalgs(io, con);
2830                         ssl_print_curves(io, con);
2831                         BIO_printf(io,(SSL_cache_hit(con)
2832                                 ?"---\nReused, "
2833                                 :"---\nNew, "));
2834                         c=SSL_get_current_cipher(con);
2835                         BIO_printf(io,"%s, Cipher is %s\n",
2836                                 SSL_CIPHER_get_version(c),
2837                                 SSL_CIPHER_get_name(c));
2838                         SSL_SESSION_print(io,SSL_get_session(con));
2839                         BIO_printf(io,"---\n");
2840                         print_stats(io,SSL_get_SSL_CTX(con));
2841                         BIO_printf(io,"---\n");
2842                         peer=SSL_get_peer_certificate(con);
2843                         if (peer != NULL)
2844                                 {
2845                                 BIO_printf(io,"Client certificate\n");
2846                                 X509_print(io,peer);
2847                                 PEM_write_bio_X509(io,peer);
2848                                 }
2849                         else
2850                                 BIO_puts(io,"no client certificate available\n");
2851                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2852                         break;
2853                         }
2854                 else if ((www == 2 || www == 3)
2855                          && (strncmp("GET /",buf,5) == 0))
2856                         {
2857                         BIO *file;
2858                         char *p,*e;
2859                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2860
2861                         /* skip the '/' */
2862                         p= &(buf[5]);
2863
2864                         dot = 1;
2865                         for (e=p; *e != '\0'; e++)
2866                                 {
2867                                 if (e[0] == ' ')
2868                                         break;
2869
2870                                 switch (dot)
2871                                         {
2872                                 case 1:
2873                                         dot = (e[0] == '.') ? 2 : 0;
2874                                         break;
2875                                 case 2:
2876                                         dot = (e[0] == '.') ? 3 : 0;
2877                                         break;
2878                                 case 3:
2879                                         dot = (e[0] == '/') ? -1 : 0;
2880                                         break;
2881                                         }
2882                                 if (dot == 0)
2883                                         dot = (e[0] == '/') ? 1 : 0;
2884                                 }
2885                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2886
2887                         if (*e == '\0')
2888                                 {
2889                                 BIO_puts(io,text);
2890                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2891                                 break;
2892                                 }
2893                         *e='\0';
2894
2895                         if (dot)
2896                                 {
2897                                 BIO_puts(io,text);
2898                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2899                                 break;
2900                                 }
2901
2902                         if (*p == '/')
2903                                 {
2904                                 BIO_puts(io,text);
2905                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2906                                 break;
2907                                 }
2908
2909 #if 0
2910                         /* append if a directory lookup */
2911                         if (e[-1] == '/')
2912                                 strcat(p,"index.html");
2913 #endif
2914
2915                         /* if a directory, do the index thang */
2916                         if (app_isdir(p)>0)
2917                                 {
2918 #if 0 /* must check buffer size */
2919                                 strcat(p,"/index.html");
2920 #else
2921                                 BIO_puts(io,text);
2922                                 BIO_printf(io,"'%s' is a directory\r\n",p);
2923                                 break;
2924 #endif
2925                                 }
2926
2927                         if ((file=BIO_new_file(p,"r")) == NULL)
2928                                 {
2929                                 BIO_puts(io,text);
2930                                 BIO_printf(io,"Error opening '%s'\r\n",p);
2931                                 ERR_print_errors(io);
2932                                 break;
2933                                 }
2934
2935                         if (!s_quiet)
2936                                 BIO_printf(bio_err,"FILE:%s\n",p);
2937
2938                         if (www == 2)
2939                                 {
2940                                 i=strlen(p);
2941                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2942                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2943                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2944                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2945                                 else
2946                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2947                                 }
2948                         /* send the file */
2949                         for (;;)
2950                                 {
2951                                 i=BIO_read(file,buf,bufsize);
2952                                 if (i <= 0) break;
2953
2954 #ifdef RENEG
2955                                 total_bytes+=i;
2956                                 fprintf(stderr,"%d\n",i);
2957                                 if (total_bytes > 3*1024)
2958                                         {
2959                                         total_bytes=0;
2960                                         fprintf(stderr,"RENEGOTIATE\n");
2961                                         SSL_renegotiate(con);
2962                                         }
2963 #endif
2964
2965                                 for (j=0; j<i; )
2966                                         {
2967 #ifdef RENEG
2968 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2969 #endif
2970                                         k=BIO_write(io,&(buf[j]),i-j);
2971                                         if (k <= 0)
2972                                                 {
2973                                                 if (!BIO_should_retry(io))
2974                                                         goto write_error;
2975                                                 else
2976                                                         {
2977                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2978                                                         }
2979                                                 }
2980                                         else
2981                                                 {
2982                                                 j+=k;
2983                                                 }
2984                                         }
2985                                 }
2986 write_error:
2987                         BIO_free(file);
2988                         break;
2989                         }
2990                 }
2991
2992         for (;;)
2993                 {
2994                 i=(int)BIO_flush(io);
2995                 if (i <= 0)
2996                         {
2997                         if (!BIO_should_retry(io))
2998                                 break;
2999                         }
3000                 else
3001                         break;
3002                 }
3003 end:
3004 #if 1
3005         /* make sure we re-use sessions */
3006         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
3007 #else
3008         /* This kills performance */
3009 /*      SSL_shutdown(con); A shutdown gets sent in the
3010  *      BIO_free_all(io) procession */
3011 #endif
3012
3013 err:
3014
3015         if (ret >= 0)
3016                 BIO_printf(bio_s_out,"ACCEPT\n");
3017
3018         if (buf != NULL) OPENSSL_free(buf);
3019         if (io != NULL) BIO_free_all(io);
3020 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
3021         return(ret);
3022         }
3023
3024 #ifndef OPENSSL_NO_RSA
3025 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
3026         {
3027         BIGNUM *bn = NULL;
3028         static RSA *rsa_tmp=NULL;
3029
3030         if (!rsa_tmp && ((bn = BN_new()) == NULL))
3031                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
3032         if (!rsa_tmp && bn)
3033                 {
3034                 if (!s_quiet)
3035                         {
3036                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
3037                         (void)BIO_flush(bio_err);
3038                         }
3039                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
3040                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
3041                         {
3042                         if(rsa_tmp) RSA_free(rsa_tmp);
3043                         rsa_tmp = NULL;
3044                         }
3045                 if (!s_quiet)
3046                         {
3047                         BIO_printf(bio_err,"\n");
3048                         (void)BIO_flush(bio_err);
3049                         }
3050                 BN_free(bn);
3051                 }
3052         return(rsa_tmp);
3053         }
3054 #endif
3055
3056 #define MAX_SESSION_ID_ATTEMPTS 10
3057 static int generate_session_id(const SSL *ssl, unsigned char *id,
3058                                 unsigned int *id_len)
3059         {
3060         unsigned int count = 0;
3061         do      {
3062                 RAND_pseudo_bytes(id, *id_len);
3063                 /* Prefix the session_id with the required prefix. NB: If our
3064                  * prefix is too long, clip it - but there will be worse effects
3065                  * anyway, eg. the server could only possibly create 1 session
3066                  * ID (ie. the prefix!) so all future session negotiations will
3067                  * fail due to conflicts. */
3068                 memcpy(id, session_id_prefix,
3069                         (strlen(session_id_prefix) < *id_len) ?
3070                         strlen(session_id_prefix) : *id_len);
3071                 }
3072         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3073                 (++count < MAX_SESSION_ID_ATTEMPTS));
3074         if(count >= MAX_SESSION_ID_ATTEMPTS)
3075                 return 0;
3076         return 1;
3077         }
3078
3079 /* By default s_server uses an in-memory cache which caches SSL_SESSION
3080  * structures without any serialisation. This hides some bugs which only
3081  * become apparent in deployed servers. By implementing a basic external
3082  * session cache some issues can be debugged using s_server.
3083  */
3084
3085 typedef struct simple_ssl_session_st
3086         {
3087         unsigned char *id;
3088         unsigned int idlen;
3089         unsigned char *der;
3090         int derlen;
3091         struct simple_ssl_session_st *next;
3092         } simple_ssl_session;
3093
3094 static simple_ssl_session *first = NULL;
3095
3096 static int add_session(SSL *ssl, SSL_SESSION *session)
3097         {
3098         simple_ssl_session *sess;
3099         unsigned char *p;
3100
3101         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
3102
3103         SSL_SESSION_get_id(session, &sess->idlen);
3104         sess->derlen = i2d_SSL_SESSION(session, NULL);
3105
3106         sess->id = BUF_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen);
3107
3108         sess->der = OPENSSL_malloc(sess->derlen);
3109         p = sess->der;
3110         i2d_SSL_SESSION(session, &p);
3111
3112         sess->next = first;
3113         first = sess;
3114         BIO_printf(bio_err, "New session added to external cache\n");
3115         return 0;
3116         }
3117
3118 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
3119                                         int *do_copy)
3120         {
3121         simple_ssl_session *sess;
3122         *do_copy = 0;
3123         for (sess = first; sess; sess = sess->next)
3124                 {
3125                 if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen))
3126                         {
3127                         const unsigned char *p = sess->der;
3128                         BIO_printf(bio_err, "Lookup session: cache hit\n");
3129                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
3130                         }
3131                 }
3132         BIO_printf(bio_err, "Lookup session: cache miss\n");
3133         return NULL;
3134         }
3135
3136 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)