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