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