Add SRP support.
[openssl.git] / apps / s_server.c
1 /* apps/s_server.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  * 
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  * 
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  * 
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from 
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  * 
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  * 
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 /* ====================================================================
59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
60  *
61  * Redistribution and use in source and binary forms, with or without
62  * modification, are permitted provided that the following conditions
63  * are met:
64  *
65  * 1. Redistributions of source code must retain the above copyright
66  *    notice, this list of conditions and the following disclaimer. 
67  *
68  * 2. Redistributions in binary form must reproduce the above copyright
69  *    notice, this list of conditions and the following disclaimer in
70  *    the documentation and/or other materials provided with the
71  *    distribution.
72  *
73  * 3. All advertising materials mentioning features or use of this
74  *    software must display the following acknowledgment:
75  *    "This product includes software developed by the OpenSSL Project
76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77  *
78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79  *    endorse or promote products derived from this software without
80  *    prior written permission. For written permission, please contact
81  *    openssl-core@openssl.org.
82  *
83  * 5. Products derived from this software may not be called "OpenSSL"
84  *    nor may "OpenSSL" appear in their names without prior written
85  *    permission of the OpenSSL Project.
86  *
87  * 6. Redistributions of any form whatsoever must retain the following
88  *    acknowledgment:
89  *    "This product includes software developed by the OpenSSL Project
90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91  *
92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103  * OF THE POSSIBILITY OF SUCH DAMAGE.
104  * ====================================================================
105  *
106  * This product includes cryptographic software written by Eric Young
107  * (eay@cryptsoft.com).  This product includes software written by Tim
108  * Hudson (tjh@cryptsoft.com).
109  *
110  */
111 /* ====================================================================
112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113  * ECC cipher suite support in OpenSSL originally developed by 
114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115  */
116 /* ====================================================================
117  * Copyright 2005 Nokia. All rights reserved.
118  *
119  * The portions of the attached software ("Contribution") is developed by
120  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
121  * license.
122  *
123  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
124  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
125  * support (see RFC 4279) to OpenSSL.
126  *
127  * No patent licenses or other rights except those expressly stated in
128  * the OpenSSL open source license shall be deemed granted or received
129  * expressly, by implication, estoppel, or otherwise.
130  *
131  * No assurances are provided by Nokia that the Contribution does not
132  * infringe the patent or other intellectual property rights of any third
133  * party or that the license provides you with all the necessary rights
134  * to make use of the Contribution.
135  *
136  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
137  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
138  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
139  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
140  * OTHERWISE.
141  */
142
143 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
144  * deprecated functions for openssl-internal code */
145 #ifdef OPENSSL_NO_DEPRECATED
146 #undef OPENSSL_NO_DEPRECATED
147 #endif
148
149 #include <assert.h>
150 #include <ctype.h>
151 #include <stdio.h>
152 #include <stdlib.h>
153 #include <string.h>
154
155 #include <openssl/e_os2.h>
156 #ifdef OPENSSL_NO_STDIO
157 #define APPS_WIN16
158 #endif
159
160 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
161 #include <sys/types.h>
162 #endif
163
164 /* With IPv6, it looks like Digital has mixed up the proper order of
165    recursive header file inclusion, resulting in the compiler complaining
166    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
167    is needed to have fileno() declared correctly...  So let's define u_int */
168 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
169 #define __U_INT
170 typedef unsigned int u_int;
171 #endif
172
173 #include <openssl/lhash.h>
174 #include <openssl/bn.h>
175 #define USE_SOCKETS
176 #include "apps.h"
177 #include <openssl/err.h>
178 #include <openssl/pem.h>
179 #include <openssl/x509.h>
180 #include <openssl/ssl.h>
181 #include <openssl/rand.h>
182 #include <openssl/ocsp.h>
183 #ifndef OPENSSL_NO_DH
184 #include <openssl/dh.h>
185 #endif
186 #ifndef OPENSSL_NO_RSA
187 #include <openssl/rsa.h>
188 #endif
189 #ifndef OPENSSL_NO_SRP
190 #include <openssl/srp.h>
191 #endif
192 #include "s_apps.h"
193 #include "timeouts.h"
194
195 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
196 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
197 #undef FIONBIO
198 #endif
199
200 #if defined(OPENSSL_SYS_BEOS_R5)
201 #include <fcntl.h>
202 #endif
203
204 #ifndef OPENSSL_NO_RSA
205 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
206 #endif
207 static int not_resumable_sess_cb(SSL *s, int is_forward_secure);
208 static int sv_body(char *hostname, int s, unsigned char *context);
209 static int www_body(char *hostname, int s, unsigned char *context);
210 static void close_accept_socket(void );
211 static void sv_usage(void);
212 static int init_ssl_connection(SSL *s);
213 static void print_stats(BIO *bp,SSL_CTX *ctx);
214 static int generate_session_id(const SSL *ssl, unsigned char *id,
215                                 unsigned int *id_len);
216 static void init_session_cache_ctx(SSL_CTX *sctx);
217 static void free_sessions(void);
218 #ifndef OPENSSL_NO_DH
219 static DH *load_dh_param(const char *dhfile);
220 static DH *get_dh512(void);
221 #endif
222
223 #ifdef MONOLITH
224 static void s_server_init(void);
225 #endif
226
227 #ifndef OPENSSL_NO_DH
228 static unsigned char dh512_p[]={
229         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
230         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
231         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
232         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
233         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
234         0x47,0x74,0xE8,0x33,
235         };
236 static unsigned char dh512_g[]={
237         0x02,
238         };
239
240 static DH *get_dh512(void)
241         {
242         DH *dh=NULL;
243
244         if ((dh=DH_new()) == NULL) return(NULL);
245         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
246         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
247         if ((dh->p == NULL) || (dh->g == NULL))
248                 return(NULL);
249         return(dh);
250         }
251 #endif
252
253
254 /* static int load_CA(SSL_CTX *ctx, char *file);*/
255
256 #undef BUFSIZZ
257 #define BUFSIZZ 16*1024
258 static int bufsize=BUFSIZZ;
259 static int accept_socket= -1;
260
261 #define TEST_CERT       "server.pem"
262 #ifndef OPENSSL_NO_TLSEXT
263 #define TEST_CERT2      "server2.pem"
264 #endif
265 #undef PROG
266 #define PROG            s_server_main
267
268 extern int verify_depth, verify_return_error;
269
270 static char *cipher=NULL;
271 static int s_server_verify=SSL_VERIFY_NONE;
272 static int s_server_session_id_context = 1; /* anything will do */
273 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
274 #ifndef OPENSSL_NO_TLSEXT
275 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
276 #endif
277 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
278 #ifdef FIONBIO
279 static int s_nbio=0;
280 #endif
281 static int s_nbio_test=0;
282 int s_crlf=0;
283 static SSL_CTX *ctx=NULL;
284 #ifndef OPENSSL_NO_TLSEXT
285 static SSL_CTX *ctx2=NULL;
286 #endif
287 static int www=0;
288
289 static BIO *bio_s_out=NULL;
290 static int s_debug=0;
291 #ifndef OPENSSL_NO_TLSEXT
292 static int s_tlsextdebug=0;
293 static int s_tlsextstatus=0;
294 static int cert_status_cb(SSL *s, void *arg);
295 #endif
296 static int no_resume_ephemeral = 0;
297 static int s_msg=0;
298 static int s_quiet=0;
299
300 static int hack=0;
301 #ifndef OPENSSL_NO_ENGINE
302 static char *engine_id=NULL;
303 #endif
304 static const char *session_id_prefix=NULL;
305
306 static int enable_timeouts = 0;
307 static long socket_mtu;
308 #ifndef OPENSSL_NO_DTLS1
309 static int cert_chain = 0;
310 #endif
311
312 #ifndef OPENSSL_NO_PSK
313 static char *psk_identity="Client_identity";
314 char *psk_key=NULL; /* by default PSK is not used */
315
316 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
317         unsigned char *psk, unsigned int max_psk_len)
318         {
319         unsigned int psk_len = 0;
320         int ret;
321         BIGNUM *bn = NULL;
322
323         if (s_debug)
324                 BIO_printf(bio_s_out,"psk_server_cb\n");
325         if (!identity)
326                 {
327                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
328                 goto out_err;
329                 }
330         if (s_debug)
331                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
332                         identity ? (int)strlen(identity) : 0, identity);
333
334         /* here we could lookup the given identity e.g. from a database */
335         if (strcmp(identity, psk_identity) != 0)
336                 {
337                 BIO_printf(bio_s_out, "PSK error: client identity not found"
338                            " (got '%s' expected '%s')\n", identity,
339                            psk_identity);
340                 goto out_err;
341                 }
342         if (s_debug)
343                 BIO_printf(bio_s_out, "PSK client identity found\n");
344
345         /* convert the PSK key to binary */
346         ret = BN_hex2bn(&bn, psk_key);
347         if (!ret)
348                 {
349                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
350                 if (bn)
351                         BN_free(bn);
352                 return 0;
353                 }
354         if (BN_num_bytes(bn) > (int)max_psk_len)
355                 {
356                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
357                         max_psk_len, BN_num_bytes(bn));
358                 BN_free(bn);
359                 return 0;
360                 }
361
362         ret = BN_bn2bin(bn, psk);
363         BN_free(bn);
364
365         if (ret < 0)
366                 goto out_err;
367         psk_len = (unsigned int)ret;
368
369         if (s_debug)
370                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
371         return psk_len;
372  out_err:
373         if (s_debug)
374                 BIO_printf(bio_err, "Error in PSK server callback\n");
375         return 0;
376         }
377 #endif
378
379 #ifndef OPENSSL_NO_SRP
380 /* This is a context that we pass to callbacks */
381 typedef struct srpsrvparm_st
382         {
383         int verbose;
384         char *login;
385         SRP_VBASE *vb;
386         } srpsrvparm;
387
388 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
389         {
390         srpsrvparm *p = arg;
391         SRP_user_pwd *user;
392
393         p->login = BUF_strdup(SSL_get_srp_username(s));
394         BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
395
396         user = SRP_VBASE_get_by_user(p->vb, p->login);  
397         if (user == NULL)
398                 {
399                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
400                 return SSL3_AL_FATAL;
401                 }
402         if (SSL_set_srp_server_param(s, user->N, user->g, user->s, user->v,
403                                      user->info) < 0)
404                 {
405                 *ad = SSL_AD_INTERNAL_ERROR;
406                 return SSL3_AL_FATAL;
407                 }
408         return SSL_ERROR_NONE;
409         }
410
411 #endif
412
413 #ifdef MONOLITH
414 static void s_server_init(void)
415         {
416         accept_socket=-1;
417         cipher=NULL;
418         s_server_verify=SSL_VERIFY_NONE;
419         s_dcert_file=NULL;
420         s_dkey_file=NULL;
421         s_cert_file=TEST_CERT;
422         s_key_file=NULL;
423 #ifndef OPENSSL_NO_TLSEXT
424         s_cert_file2=TEST_CERT2;
425         s_key_file2=NULL;
426         ctx2=NULL;
427 #endif
428 #ifdef FIONBIO
429         s_nbio=0;
430 #endif
431         s_nbio_test=0;
432         ctx=NULL;
433         www=0;
434
435         bio_s_out=NULL;
436         s_debug=0;
437         s_msg=0;
438         s_quiet=0;
439         hack=0;
440 #ifndef OPENSSL_NO_ENGINE
441         engine_id=NULL;
442 #endif
443         }
444 #endif
445
446 static void sv_usage(void)
447         {
448         BIO_printf(bio_err,"usage: s_server [args ...]\n");
449         BIO_printf(bio_err,"\n");
450         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
451         BIO_printf(bio_err," -context arg  - set session ID context\n");
452         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
453         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
454         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
455         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
456         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
457                            "                 The CRL(s) are appended to the certificate file\n");
458         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
459                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
460                            "                 the certificate file.\n");
461         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
462         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
463         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
464         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
465         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
466         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
467         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
468         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
469         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
470         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
471         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
472         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
473 #ifndef OPENSSL_NO_ECDH
474         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
475                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
476                            "                 (default is nistp256).\n");
477 #endif
478 #ifdef FIONBIO
479         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
480 #endif
481         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
482         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
483         BIO_printf(bio_err," -debug        - Print more output\n");
484         BIO_printf(bio_err," -msg          - Show protocol messages\n");
485         BIO_printf(bio_err," -state        - Print the SSL states\n");
486         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
487         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
488         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
489         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
490         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
491         BIO_printf(bio_err," -quiet        - No server output\n");
492         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
493 #ifndef OPENSSL_NO_PSK
494         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
495         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
496 # ifndef OPENSSL_NO_JPAKE
497         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
498 # endif
499 #endif
500 #ifndef OPENSSL_NO_SRP
501         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
502         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
503 #endif
504         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
505         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
506         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
507         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
508         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
509         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
510         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
511         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
512         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
513         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
514         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
515         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
516 #ifndef OPENSSL_NO_DH
517         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
518 #endif
519 #ifndef OPENSSL_NO_ECDH
520         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
521 #endif
522         BIO_printf(bio_err, "-no_resume_ephemeral - Disable caching and tickets if ephemeral (EC)DH is used\n");
523         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
524         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
525         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
526         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
527         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
528 #ifndef OPENSSL_NO_ENGINE
529         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
530 #endif
531         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
532         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
533 #ifndef OPENSSL_NO_TLSEXT
534         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
535         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
536         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
537         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
538         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
539         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
540         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
541         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
542         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
543 # ifndef OPENSSL_NO_NEXTPROTONEG
544         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
545 # endif
546 #endif
547         }
548
549 static int local_argc=0;
550 static char **local_argv;
551
552 #ifdef CHARSET_EBCDIC
553 static int ebcdic_new(BIO *bi);
554 static int ebcdic_free(BIO *a);
555 static int ebcdic_read(BIO *b, char *out, int outl);
556 static int ebcdic_write(BIO *b, const char *in, int inl);
557 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
558 static int ebcdic_gets(BIO *bp, char *buf, int size);
559 static int ebcdic_puts(BIO *bp, const char *str);
560
561 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
562 static BIO_METHOD methods_ebcdic=
563         {
564         BIO_TYPE_EBCDIC_FILTER,
565         "EBCDIC/ASCII filter",
566         ebcdic_write,
567         ebcdic_read,
568         ebcdic_puts,
569         ebcdic_gets,
570         ebcdic_ctrl,
571         ebcdic_new,
572         ebcdic_free,
573         };
574
575 typedef struct
576 {
577         size_t  alloced;
578         char    buff[1];
579 } EBCDIC_OUTBUFF;
580
581 BIO_METHOD *BIO_f_ebcdic_filter()
582 {
583         return(&methods_ebcdic);
584 }
585
586 static int ebcdic_new(BIO *bi)
587 {
588         EBCDIC_OUTBUFF *wbuf;
589
590         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
591         wbuf->alloced = 1024;
592         wbuf->buff[0] = '\0';
593
594         bi->ptr=(char *)wbuf;
595         bi->init=1;
596         bi->flags=0;
597         return(1);
598 }
599
600 static int ebcdic_free(BIO *a)
601 {
602         if (a == NULL) return(0);
603         if (a->ptr != NULL)
604                 OPENSSL_free(a->ptr);
605         a->ptr=NULL;
606         a->init=0;
607         a->flags=0;
608         return(1);
609 }
610         
611 static int ebcdic_read(BIO *b, char *out, int outl)
612 {
613         int ret=0;
614
615         if (out == NULL || outl == 0) return(0);
616         if (b->next_bio == NULL) return(0);
617
618         ret=BIO_read(b->next_bio,out,outl);
619         if (ret > 0)
620                 ascii2ebcdic(out,out,ret);
621         return(ret);
622 }
623
624 static int ebcdic_write(BIO *b, const char *in, int inl)
625 {
626         EBCDIC_OUTBUFF *wbuf;
627         int ret=0;
628         int num;
629         unsigned char n;
630
631         if ((in == NULL) || (inl <= 0)) return(0);
632         if (b->next_bio == NULL) return(0);
633
634         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
635
636         if (inl > (num = wbuf->alloced))
637         {
638                 num = num + num;  /* double the size */
639                 if (num < inl)
640                         num = inl;
641                 OPENSSL_free(wbuf);
642                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
643
644                 wbuf->alloced = num;
645                 wbuf->buff[0] = '\0';
646
647                 b->ptr=(char *)wbuf;
648         }
649
650         ebcdic2ascii(wbuf->buff, in, inl);
651
652         ret=BIO_write(b->next_bio, wbuf->buff, inl);
653
654         return(ret);
655 }
656
657 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
658 {
659         long ret;
660
661         if (b->next_bio == NULL) return(0);
662         switch (cmd)
663         {
664         case BIO_CTRL_DUP:
665                 ret=0L;
666                 break;
667         default:
668                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
669                 break;
670         }
671         return(ret);
672 }
673
674 static int ebcdic_gets(BIO *bp, char *buf, int size)
675 {
676         int i, ret=0;
677         if (bp->next_bio == NULL) return(0);
678 /*      return(BIO_gets(bp->next_bio,buf,size));*/
679         for (i=0; i<size-1; ++i)
680         {
681                 ret = ebcdic_read(bp,&buf[i],1);
682                 if (ret <= 0)
683                         break;
684                 else if (buf[i] == '\n')
685                 {
686                         ++i;
687                         break;
688                 }
689         }
690         if (i < size)
691                 buf[i] = '\0';
692         return (ret < 0 && i == 0) ? ret : i;
693 }
694
695 static int ebcdic_puts(BIO *bp, const char *str)
696 {
697         if (bp->next_bio == NULL) return(0);
698         return ebcdic_write(bp, str, strlen(str));
699 }
700 #endif
701
702 #ifndef OPENSSL_NO_TLSEXT
703
704 /* This is a context that we pass to callbacks */
705 typedef struct tlsextctx_st {
706    char * servername;
707    BIO * biodebug;
708    int extension_error;
709 } tlsextctx;
710
711
712 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
713         {
714         tlsextctx * p = (tlsextctx *) arg;
715         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
716         if (servername && p->biodebug) 
717                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
718         
719         if (!p->servername)
720                 return SSL_TLSEXT_ERR_NOACK;
721         
722         if (servername)
723                 {
724                 if (strcmp(servername,p->servername)) 
725                         return p->extension_error;
726                 if (ctx2)
727                         {
728                         BIO_printf(p->biodebug,"Switching server context.\n");
729                         SSL_set_SSL_CTX(s,ctx2);
730                         }     
731                 }
732         return SSL_TLSEXT_ERR_OK;
733 }
734
735 /* Structure passed to cert status callback */
736
737 typedef struct tlsextstatusctx_st {
738    /* Default responder to use */
739    char *host, *path, *port;
740    int use_ssl;
741    int timeout;
742    BIO *err;
743    int verbose;
744 } tlsextstatusctx;
745
746 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
747
748 /* Certificate Status callback. This is called when a client includes a
749  * certificate status request extension.
750  *
751  * This is a simplified version. It examines certificates each time and
752  * makes one OCSP responder query for each request.
753  *
754  * A full version would store details such as the OCSP certificate IDs and
755  * minimise the number of OCSP responses by caching them until they were
756  * considered "expired".
757  */
758
759 static int cert_status_cb(SSL *s, void *arg)
760         {
761         tlsextstatusctx *srctx = arg;
762         BIO *err = srctx->err;
763         char *host, *port, *path;
764         int use_ssl;
765         unsigned char *rspder = NULL;
766         int rspderlen;
767         STACK_OF(OPENSSL_STRING) *aia = NULL;
768         X509 *x = NULL;
769         X509_STORE_CTX inctx;
770         X509_OBJECT obj;
771         OCSP_REQUEST *req = NULL;
772         OCSP_RESPONSE *resp = NULL;
773         OCSP_CERTID *id = NULL;
774         STACK_OF(X509_EXTENSION) *exts;
775         int ret = SSL_TLSEXT_ERR_NOACK;
776         int i;
777 #if 0
778 STACK_OF(OCSP_RESPID) *ids;
779 SSL_get_tlsext_status_ids(s, &ids);
780 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
781 #endif
782         if (srctx->verbose)
783                 BIO_puts(err, "cert_status: callback called\n");
784         /* Build up OCSP query from server certificate */
785         x = SSL_get_certificate(s);
786         aia = X509_get1_ocsp(x);
787         if (aia)
788                 {
789                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
790                         &host, &port, &path, &use_ssl))
791                         {
792                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
793                         goto err;
794                         }
795                 if (srctx->verbose)
796                         BIO_printf(err, "cert_status: AIA URL: %s\n",
797                                         sk_OPENSSL_STRING_value(aia, 0));
798                 }
799         else
800                 {
801                 if (!srctx->host)
802                         {
803                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
804                         goto done;
805                         }
806                 host = srctx->host;
807                 path = srctx->path;
808                 port = srctx->port;
809                 use_ssl = srctx->use_ssl;
810                 }
811                 
812         if (!X509_STORE_CTX_init(&inctx,
813                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
814                                 NULL, NULL))
815                 goto err;
816         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
817                                 X509_get_issuer_name(x),&obj) <= 0)
818                 {
819                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
820                 X509_STORE_CTX_cleanup(&inctx);
821                 goto done;
822                 }
823         req = OCSP_REQUEST_new();
824         if (!req)
825                 goto err;
826         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
827         X509_free(obj.data.x509);
828         X509_STORE_CTX_cleanup(&inctx);
829         if (!id)
830                 goto err;
831         if (!OCSP_request_add0_id(req, id))
832                 goto err;
833         id = NULL;
834         /* Add any extensions to the request */
835         SSL_get_tlsext_status_exts(s, &exts);
836         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
837                 {
838                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
839                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
840                         goto err;
841                 }
842         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
843                                         srctx->timeout);
844         if (!resp)
845                 {
846                 BIO_puts(err, "cert_status: error querying responder\n");
847                 goto done;
848                 }
849         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
850         if (rspderlen <= 0)
851                 goto err;
852         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
853         if (srctx->verbose)
854                 {
855                 BIO_puts(err, "cert_status: ocsp response sent:\n");
856                 OCSP_RESPONSE_print(err, resp, 2);
857                 }
858         ret = SSL_TLSEXT_ERR_OK;
859         done:
860         if (ret != SSL_TLSEXT_ERR_OK)
861                 ERR_print_errors(err);
862         if (aia)
863                 {
864                 OPENSSL_free(host);
865                 OPENSSL_free(path);
866                 OPENSSL_free(port);
867                 X509_email_free(aia);
868                 }
869         if (id)
870                 OCSP_CERTID_free(id);
871         if (req)
872                 OCSP_REQUEST_free(req);
873         if (resp)
874                 OCSP_RESPONSE_free(resp);
875         return ret;
876         err:
877         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
878         goto done;
879         }
880
881 # ifndef OPENSSL_NO_NEXTPROTONEG
882 /* This is the context that we pass to next_proto_cb */
883 typedef struct tlsextnextprotoctx_st {
884         unsigned char *data;
885         unsigned int len;
886 } tlsextnextprotoctx;
887
888 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
889         {
890         tlsextnextprotoctx *next_proto = arg;
891
892         *data = next_proto->data;
893         *len = next_proto->len;
894
895         return SSL_TLSEXT_ERR_OK;
896         }
897 # endif  /* ndef OPENSSL_NO_NPN */
898 #endif
899
900 static int not_resumable_sess_cb(SSL *s, int is_forward_secure)
901         {
902         /* disable resumption for sessions with forward secure ciphers */
903         return is_forward_secure;
904         }
905
906 int MAIN(int, char **);
907
908 #ifndef OPENSSL_NO_JPAKE
909 static char *jpake_secret = NULL;
910 #endif
911
912 int MAIN(int argc, char *argv[])
913         {
914         X509_VERIFY_PARAM *vpm = NULL;
915         int badarg = 0;
916         short port=PORT;
917         char *CApath=NULL,*CAfile=NULL;
918         unsigned char *context = NULL;
919         char *dhfile = NULL;
920 #ifndef OPENSSL_NO_ECDH
921         char *named_curve = NULL;
922 #endif
923         int badop=0,bugs=0;
924         int ret=1;
925         int off=0;
926         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
927         int state=0;
928         const SSL_METHOD *meth=NULL;
929         int socket_type=SOCK_STREAM;
930         ENGINE *e=NULL;
931         char *inrand=NULL;
932         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
933         char *passarg = NULL, *pass = NULL;
934         char *dpassarg = NULL, *dpass = NULL;
935         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
936         X509 *s_cert = NULL, *s_dcert = NULL;
937         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
938         int no_cache = 0, ext_cache = 0;
939 #ifndef OPENSSL_NO_TLSEXT
940         EVP_PKEY *s_key2 = NULL;
941         X509 *s_cert2 = NULL;
942 #endif
943 #ifndef OPENSSL_NO_TLSEXT
944         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
945 # ifndef OPENSSL_NO_NEXTPROTONEG
946         const char *next_proto_neg_in = NULL;
947         tlsextnextprotoctx next_proto;
948 # endif
949 #endif
950 #ifndef OPENSSL_NO_PSK
951         /* by default do not send a PSK identity hint */
952         static char *psk_identity_hint=NULL;
953 #endif
954 #ifndef OPENSSL_NO_SRP
955         char *srpuserseed = NULL;
956         char *srp_verifier_file = NULL;
957         srpsrvparm p;
958 #endif
959 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
960         meth=SSLv23_server_method();
961 #elif !defined(OPENSSL_NO_SSL3)
962         meth=SSLv3_server_method();
963 #elif !defined(OPENSSL_NO_SSL2)
964         meth=SSLv2_server_method();
965 #elif !defined(OPENSSL_NO_TLS1)
966         meth=TLSv1_server_method();
967 #else
968   /*  #error no SSL version enabled */
969 #endif
970
971         local_argc=argc;
972         local_argv=argv;
973
974         apps_startup();
975 #ifdef MONOLITH
976         s_server_init();
977 #endif
978
979         if (bio_err == NULL)
980                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
981
982         if (!load_config(bio_err, NULL))
983                 goto end;
984
985         verify_depth=0;
986 #ifdef FIONBIO
987         s_nbio=0;
988 #endif
989         s_nbio_test=0;
990
991         argc--;
992         argv++;
993
994         while (argc >= 1)
995                 {
996                 if      ((strcmp(*argv,"-port") == 0) ||
997                          (strcmp(*argv,"-accept") == 0))
998                         {
999                         if (--argc < 1) goto bad;
1000                         if (!extract_port(*(++argv),&port))
1001                                 goto bad;
1002                         }
1003                 else if (strcmp(*argv,"-verify") == 0)
1004                         {
1005                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1006                         if (--argc < 1) goto bad;
1007                         verify_depth=atoi(*(++argv));
1008                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1009                         }
1010                 else if (strcmp(*argv,"-Verify") == 0)
1011                         {
1012                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1013                                 SSL_VERIFY_CLIENT_ONCE;
1014                         if (--argc < 1) goto bad;
1015                         verify_depth=atoi(*(++argv));
1016                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1017                         }
1018                 else if (strcmp(*argv,"-context") == 0)
1019                         {
1020                         if (--argc < 1) goto bad;
1021                         context= (unsigned char *)*(++argv);
1022                         }
1023                 else if (strcmp(*argv,"-cert") == 0)
1024                         {
1025                         if (--argc < 1) goto bad;
1026                         s_cert_file= *(++argv);
1027                         }
1028                 else if (strcmp(*argv,"-certform") == 0)
1029                         {
1030                         if (--argc < 1) goto bad;
1031                         s_cert_format = str2fmt(*(++argv));
1032                         }
1033                 else if (strcmp(*argv,"-key") == 0)
1034                         {
1035                         if (--argc < 1) goto bad;
1036                         s_key_file= *(++argv);
1037                         }
1038                 else if (strcmp(*argv,"-keyform") == 0)
1039                         {
1040                         if (--argc < 1) goto bad;
1041                         s_key_format = str2fmt(*(++argv));
1042                         }
1043                 else if (strcmp(*argv,"-pass") == 0)
1044                         {
1045                         if (--argc < 1) goto bad;
1046                         passarg = *(++argv);
1047                         }
1048                 else if (strcmp(*argv,"-dhparam") == 0)
1049                         {
1050                         if (--argc < 1) goto bad;
1051                         dhfile = *(++argv);
1052                         }
1053 #ifndef OPENSSL_NO_ECDH         
1054                 else if (strcmp(*argv,"-named_curve") == 0)
1055                         {
1056                         if (--argc < 1) goto bad;
1057                         named_curve = *(++argv);
1058                         }
1059 #endif
1060                 else if (strcmp(*argv,"-dcertform") == 0)
1061                         {
1062                         if (--argc < 1) goto bad;
1063                         s_dcert_format = str2fmt(*(++argv));
1064                         }
1065                 else if (strcmp(*argv,"-dcert") == 0)
1066                         {
1067                         if (--argc < 1) goto bad;
1068                         s_dcert_file= *(++argv);
1069                         }
1070                 else if (strcmp(*argv,"-dkeyform") == 0)
1071                         {
1072                         if (--argc < 1) goto bad;
1073                         s_dkey_format = str2fmt(*(++argv));
1074                         }
1075                 else if (strcmp(*argv,"-dpass") == 0)
1076                         {
1077                         if (--argc < 1) goto bad;
1078                         dpassarg = *(++argv);
1079                         }
1080                 else if (strcmp(*argv,"-dkey") == 0)
1081                         {
1082                         if (--argc < 1) goto bad;
1083                         s_dkey_file= *(++argv);
1084                         }
1085                 else if (strcmp(*argv,"-nocert") == 0)
1086                         {
1087                         nocert=1;
1088                         }
1089                 else if (strcmp(*argv,"-CApath") == 0)
1090                         {
1091                         if (--argc < 1) goto bad;
1092                         CApath= *(++argv);
1093                         }
1094                 else if (strcmp(*argv,"-no_cache") == 0)
1095                         no_cache = 1;
1096                 else if (strcmp(*argv,"-ext_cache") == 0)
1097                         ext_cache = 1;
1098                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1099                         {
1100                         if (badarg)
1101                                 goto bad;
1102                         continue;
1103                         }
1104                 else if (strcmp(*argv,"-verify_return_error") == 0)
1105                         verify_return_error = 1;
1106                 else if (strcmp(*argv,"-serverpref") == 0)
1107                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
1108                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
1109                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
1110                 else if (strcmp(*argv,"-cipher") == 0)
1111                         {
1112                         if (--argc < 1) goto bad;
1113                         cipher= *(++argv);
1114                         }
1115                 else if (strcmp(*argv,"-CAfile") == 0)
1116                         {
1117                         if (--argc < 1) goto bad;
1118                         CAfile= *(++argv);
1119                         }
1120 #ifdef FIONBIO  
1121                 else if (strcmp(*argv,"-nbio") == 0)
1122                         { s_nbio=1; }
1123 #endif
1124                 else if (strcmp(*argv,"-nbio_test") == 0)
1125                         {
1126 #ifdef FIONBIO  
1127                         s_nbio=1;
1128 #endif
1129                         s_nbio_test=1;
1130                         }
1131                 else if (strcmp(*argv,"-debug") == 0)
1132                         { s_debug=1; }
1133 #ifndef OPENSSL_NO_TLSEXT
1134                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1135                         s_tlsextdebug=1;
1136                 else if (strcmp(*argv,"-status") == 0)
1137                         s_tlsextstatus=1;
1138                 else if (strcmp(*argv,"-status_verbose") == 0)
1139                         {
1140                         s_tlsextstatus=1;
1141                         tlscstatp.verbose = 1;
1142                         }
1143                 else if (!strcmp(*argv, "-status_timeout"))
1144                         {
1145                         s_tlsextstatus=1;
1146                         if (--argc < 1) goto bad;
1147                         tlscstatp.timeout = atoi(*(++argv));
1148                         }
1149                 else if (!strcmp(*argv, "-status_url"))
1150                         {
1151                         s_tlsextstatus=1;
1152                         if (--argc < 1) goto bad;
1153                         if (!OCSP_parse_url(*(++argv),
1154                                         &tlscstatp.host,
1155                                         &tlscstatp.port,
1156                                         &tlscstatp.path,
1157                                         &tlscstatp.use_ssl))
1158                                 {
1159                                 BIO_printf(bio_err, "Error parsing URL\n");
1160                                 goto bad;
1161                                 }
1162                         }
1163 #endif
1164                 else if (strcmp(*argv,"-msg") == 0)
1165                         { s_msg=1; }
1166                 else if (strcmp(*argv,"-hack") == 0)
1167                         { hack=1; }
1168                 else if (strcmp(*argv,"-state") == 0)
1169                         { state=1; }
1170                 else if (strcmp(*argv,"-crlf") == 0)
1171                         { s_crlf=1; }
1172                 else if (strcmp(*argv,"-quiet") == 0)
1173                         { s_quiet=1; }
1174                 else if (strcmp(*argv,"-bugs") == 0)
1175                         { bugs=1; }
1176                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1177                         { no_tmp_rsa=1; }
1178                 else if (strcmp(*argv,"-no_dhe") == 0)
1179                         { no_dhe=1; }
1180                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1181                         { no_ecdhe=1; }
1182                 else if (strcmp(*argv,"-no_resume_ephemeral") == 0)
1183                         { no_resume_ephemeral = 1; }
1184 #ifndef OPENSSL_NO_PSK
1185                 else if (strcmp(*argv,"-psk_hint") == 0)
1186                         {
1187                         if (--argc < 1) goto bad;
1188                         psk_identity_hint= *(++argv);
1189                         }
1190                 else if (strcmp(*argv,"-psk") == 0)
1191                         {
1192                         size_t i;
1193
1194                         if (--argc < 1) goto bad;
1195                         psk_key=*(++argv);
1196                         for (i=0; i<strlen(psk_key); i++)
1197                                 {
1198                                 if (isxdigit((int)psk_key[i]))
1199                                         continue;
1200                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1201                                 goto bad;
1202                                 }
1203                         }
1204 #endif
1205 #ifndef OPENSSL_NO_SRP
1206                 else if (strcmp(*argv, "-srpvfile") == 0)
1207                         {
1208                         if (--argc < 1) goto bad;
1209                         srp_verifier_file = *(++argv);
1210                         meth = TLSv1_server_method();
1211                         }
1212                 else if (strcmp(*argv, "-srpuserseed") == 0)
1213                         {
1214                         if (--argc < 1) goto bad;
1215                         srpuserseed = *(++argv);
1216                         meth = TLSv1_server_method();
1217                         }
1218 #endif
1219                 else if (strcmp(*argv,"-www") == 0)
1220                         { www=1; }
1221                 else if (strcmp(*argv,"-WWW") == 0)
1222                         { www=2; }
1223                 else if (strcmp(*argv,"-HTTP") == 0)
1224                         { www=3; }
1225                 else if (strcmp(*argv,"-no_ssl2") == 0)
1226                         { off|=SSL_OP_NO_SSLv2; }
1227                 else if (strcmp(*argv,"-no_ssl3") == 0)
1228                         { off|=SSL_OP_NO_SSLv3; }
1229                 else if (strcmp(*argv,"-no_tls1_1") == 0)
1230                         { off|=SSL_OP_NO_TLSv1_1; }
1231                 else if (strcmp(*argv,"-no_tls1") == 0)
1232                         { off|=SSL_OP_NO_TLSv1; }
1233                 else if (strcmp(*argv,"-no_comp") == 0)
1234                         { off|=SSL_OP_NO_COMPRESSION; }
1235 #ifndef OPENSSL_NO_TLSEXT
1236                 else if (strcmp(*argv,"-no_ticket") == 0)
1237                         { off|=SSL_OP_NO_TICKET; }
1238 #endif
1239 #ifndef OPENSSL_NO_SSL2
1240                 else if (strcmp(*argv,"-ssl2") == 0)
1241                         { meth=SSLv2_server_method(); }
1242 #endif
1243 #ifndef OPENSSL_NO_SSL3
1244                 else if (strcmp(*argv,"-ssl3") == 0)
1245                         { meth=SSLv3_server_method(); }
1246 #endif
1247 #ifndef OPENSSL_NO_TLS1
1248                 else if (strcmp(*argv,"-tls1_1") == 0)
1249                         { meth=TLSv1_1_server_method(); }
1250                 else if (strcmp(*argv,"-tls1") == 0)
1251                         { meth=TLSv1_server_method(); }
1252                 else if (strcmp(*argv,"-tls1_1") == 0)
1253                         { meth=TLSv1_1_server_method(); }
1254 #endif
1255 #ifndef OPENSSL_NO_DTLS1
1256                 else if (strcmp(*argv,"-dtls1") == 0)
1257                         { 
1258                         meth=DTLSv1_server_method();
1259                         socket_type = SOCK_DGRAM;
1260                         }
1261                 else if (strcmp(*argv,"-timeout") == 0)
1262                         enable_timeouts = 1;
1263                 else if (strcmp(*argv,"-mtu") == 0)
1264                         {
1265                         if (--argc < 1) goto bad;
1266                         socket_mtu = atol(*(++argv));
1267                         }
1268                 else if (strcmp(*argv, "-chain") == 0)
1269                         cert_chain = 1;
1270 #endif
1271                 else if (strcmp(*argv, "-id_prefix") == 0)
1272                         {
1273                         if (--argc < 1) goto bad;
1274                         session_id_prefix = *(++argv);
1275                         }
1276 #ifndef OPENSSL_NO_ENGINE
1277                 else if (strcmp(*argv,"-engine") == 0)
1278                         {
1279                         if (--argc < 1) goto bad;
1280                         engine_id= *(++argv);
1281                         }
1282 #endif
1283                 else if (strcmp(*argv,"-rand") == 0)
1284                         {
1285                         if (--argc < 1) goto bad;
1286                         inrand= *(++argv);
1287                         }
1288 #ifndef OPENSSL_NO_TLSEXT
1289                 else if (strcmp(*argv,"-servername") == 0)
1290                         {
1291                         if (--argc < 1) goto bad;
1292                         tlsextcbp.servername= *(++argv);
1293                         }
1294                 else if (strcmp(*argv,"-servername_fatal") == 0)
1295                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1296                 else if (strcmp(*argv,"-cert2") == 0)
1297                         {
1298                         if (--argc < 1) goto bad;
1299                         s_cert_file2= *(++argv);
1300                         }
1301                 else if (strcmp(*argv,"-key2") == 0)
1302                         {
1303                         if (--argc < 1) goto bad;
1304                         s_key_file2= *(++argv);
1305                         }
1306 # ifndef OPENSSL_NO_NEXTPROTONEG
1307                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1308                         {
1309                         if (--argc < 1) goto bad;
1310                         next_proto_neg_in = *(++argv);
1311                         }
1312 # endif
1313 #endif
1314 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1315                 else if (strcmp(*argv,"-jpake") == 0)
1316                         {
1317                         if (--argc < 1) goto bad;
1318                         jpake_secret = *(++argv);
1319                         }
1320 #endif
1321                 else
1322                         {
1323                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1324                         badop=1;
1325                         break;
1326                         }
1327                 argc--;
1328                 argv++;
1329                 }
1330         if (badop)
1331                 {
1332 bad:
1333                 sv_usage();
1334                 goto end;
1335                 }
1336
1337 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1338         if (jpake_secret)
1339                 {
1340                 if (psk_key)
1341                         {
1342                         BIO_printf(bio_err,
1343                                    "Can't use JPAKE and PSK together\n");
1344                         goto end;
1345                         }
1346                 psk_identity = "JPAKE";
1347                 if (cipher)
1348                         {
1349                         BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1350                         goto end;
1351                         }
1352                 cipher = "PSK";
1353                 }
1354
1355 #endif
1356
1357         SSL_load_error_strings();
1358         OpenSSL_add_ssl_algorithms();
1359
1360 #ifndef OPENSSL_NO_ENGINE
1361         e = setup_engine(bio_err, engine_id, 1);
1362 #endif
1363
1364         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1365                 {
1366                 BIO_printf(bio_err, "Error getting password\n");
1367                 goto end;
1368                 }
1369
1370
1371         if (s_key_file == NULL)
1372                 s_key_file = s_cert_file;
1373 #ifndef OPENSSL_NO_TLSEXT
1374         if (s_key_file2 == NULL)
1375                 s_key_file2 = s_cert_file2;
1376 #endif
1377
1378         if (nocert == 0)
1379                 {
1380                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1381                        "server certificate private key file");
1382                 if (!s_key)
1383                         {
1384                         ERR_print_errors(bio_err);
1385                         goto end;
1386                         }
1387
1388                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1389                         NULL, e, "server certificate file");
1390
1391                 if (!s_cert)
1392                         {
1393                         ERR_print_errors(bio_err);
1394                         goto end;
1395                         }
1396
1397 #ifndef OPENSSL_NO_TLSEXT
1398                 if (tlsextcbp.servername) 
1399                         {
1400                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1401                                 "second server certificate private key file");
1402                         if (!s_key2)
1403                                 {
1404                                 ERR_print_errors(bio_err);
1405                                 goto end;
1406                                 }
1407                         
1408                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1409                                 NULL, e, "second server certificate file");
1410                         
1411                         if (!s_cert2)
1412                                 {
1413                                 ERR_print_errors(bio_err);
1414                                 goto end;
1415                                 }
1416                         }
1417 # ifndef OPENSSL_NO_NEXTPROTONEG
1418                 if (next_proto_neg_in)
1419                         {
1420                         unsigned short len;
1421                         next_proto.data = next_protos_parse(&len,
1422                                 next_proto_neg_in);
1423                         if (next_proto.data == NULL)
1424                                 goto end;
1425                         next_proto.len = len;
1426                         }
1427                 else
1428                         {
1429                         next_proto.data = NULL;
1430                         }
1431 # endif
1432 #endif
1433                 }
1434
1435
1436         if (s_dcert_file)
1437                 {
1438
1439                 if (s_dkey_file == NULL)
1440                         s_dkey_file = s_dcert_file;
1441
1442                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1443                                 0, dpass, e,
1444                                "second certificate private key file");
1445                 if (!s_dkey)
1446                         {
1447                         ERR_print_errors(bio_err);
1448                         goto end;
1449                         }
1450
1451                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1452                                 NULL, e, "second server certificate file");
1453
1454                 if (!s_dcert)
1455                         {
1456                         ERR_print_errors(bio_err);
1457                         goto end;
1458                         }
1459
1460                 }
1461
1462         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1463                 && !RAND_status())
1464                 {
1465                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1466                 }
1467         if (inrand != NULL)
1468                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1469                         app_RAND_load_files(inrand));
1470
1471         if (bio_s_out == NULL)
1472                 {
1473                 if (s_quiet && !s_debug && !s_msg)
1474                         {
1475                         bio_s_out=BIO_new(BIO_s_null());
1476                         }
1477                 else
1478                         {
1479                         if (bio_s_out == NULL)
1480                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1481                         }
1482                 }
1483
1484 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1485         if (nocert)
1486 #endif
1487                 {
1488                 s_cert_file=NULL;
1489                 s_key_file=NULL;
1490                 s_dcert_file=NULL;
1491                 s_dkey_file=NULL;
1492 #ifndef OPENSSL_NO_TLSEXT
1493                 s_cert_file2=NULL;
1494                 s_key_file2=NULL;
1495 #endif
1496                 }
1497
1498         ctx=SSL_CTX_new(meth);
1499         if (ctx == NULL)
1500                 {
1501                 ERR_print_errors(bio_err);
1502                 goto end;
1503                 }
1504         if (session_id_prefix)
1505                 {
1506                 if(strlen(session_id_prefix) >= 32)
1507                         BIO_printf(bio_err,
1508 "warning: id_prefix is too long, only one new session will be possible\n");
1509                 else if(strlen(session_id_prefix) >= 16)
1510                         BIO_printf(bio_err,
1511 "warning: id_prefix is too long if you use SSLv2\n");
1512                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1513                         {
1514                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1515                         ERR_print_errors(bio_err);
1516                         goto end;
1517                         }
1518                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1519                 }
1520         SSL_CTX_set_quiet_shutdown(ctx,1);
1521         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1522         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1523         SSL_CTX_set_options(ctx,off);
1524         /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1525          * Setting read ahead solves this problem.
1526          */
1527         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1528
1529         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1530         if (no_cache)
1531                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1532         else if (ext_cache)
1533                 init_session_cache_ctx(ctx);
1534         else
1535                 SSL_CTX_sess_set_cache_size(ctx,128);
1536
1537 #if 0
1538         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1539 #endif
1540
1541 #if 0
1542         if (s_cert_file == NULL)
1543                 {
1544                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1545                 goto end;
1546                 }
1547 #endif
1548
1549         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1550                 (!SSL_CTX_set_default_verify_paths(ctx)))
1551                 {
1552                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1553                 ERR_print_errors(bio_err);
1554                 /* goto end; */
1555                 }
1556         if (vpm)
1557                 SSL_CTX_set1_param(ctx, vpm);
1558
1559 #ifndef OPENSSL_NO_TLSEXT
1560         if (s_cert2)
1561                 {
1562                 ctx2=SSL_CTX_new(meth);
1563                 if (ctx2 == NULL)
1564                         {
1565                         ERR_print_errors(bio_err);
1566                         goto end;
1567                         }
1568                 }
1569         
1570         if (ctx2)
1571                 {
1572                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1573
1574                 if (session_id_prefix)
1575                         {
1576                         if(strlen(session_id_prefix) >= 32)
1577                                 BIO_printf(bio_err,
1578                                         "warning: id_prefix is too long, only one new session will be possible\n");
1579                         else if(strlen(session_id_prefix) >= 16)
1580                                 BIO_printf(bio_err,
1581                                         "warning: id_prefix is too long if you use SSLv2\n");
1582                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1583                                 {
1584                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1585                                 ERR_print_errors(bio_err);
1586                                 goto end;
1587                                 }
1588                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1589                         }
1590                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1591                 if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1592                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1593                 SSL_CTX_set_options(ctx2,off);
1594                 /* DTLS: partial reads end up discarding unread UDP bytes :-( 
1595                  * Setting read ahead solves this problem.
1596                  */
1597                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1598
1599                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1600
1601                 if (no_cache)
1602                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1603                 else if (ext_cache)
1604                         init_session_cache_ctx(ctx2);
1605                 else
1606                         SSL_CTX_sess_set_cache_size(ctx2,128);
1607
1608                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1609                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1610                         {
1611                         ERR_print_errors(bio_err);
1612                         }
1613                 if (vpm)
1614                         SSL_CTX_set1_param(ctx2, vpm);
1615                 }
1616
1617 # ifndef OPENSSL_NO_NEXTPROTONEG
1618         if (next_proto.data)
1619                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1620 # endif
1621 #endif 
1622
1623 #ifndef OPENSSL_NO_DH
1624         if (!no_dhe)
1625                 {
1626                 DH *dh=NULL;
1627
1628                 if (dhfile)
1629                         dh = load_dh_param(dhfile);
1630                 else if (s_cert_file)
1631                         dh = load_dh_param(s_cert_file);
1632
1633                 if (dh != NULL)
1634                         {
1635                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1636                         }
1637                 else
1638                         {
1639                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1640                         dh=get_dh512();
1641                         }
1642                 (void)BIO_flush(bio_s_out);
1643
1644                 SSL_CTX_set_tmp_dh(ctx,dh);
1645 #ifndef OPENSSL_NO_TLSEXT
1646                 if (ctx2)
1647                         {
1648                         if (!dhfile)
1649                                 { 
1650                                 DH *dh2=load_dh_param(s_cert_file2);
1651                                 if (dh2 != NULL)
1652                                         {
1653                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1654                                         (void)BIO_flush(bio_s_out);
1655
1656                                         DH_free(dh);
1657                                         dh = dh2;
1658                                         }
1659                                 }
1660                         SSL_CTX_set_tmp_dh(ctx2,dh);
1661                         }
1662 #endif
1663                 DH_free(dh);
1664                 }
1665 #endif
1666
1667 #ifndef OPENSSL_NO_ECDH
1668         if (!no_ecdhe)
1669                 {
1670                 EC_KEY *ecdh=NULL;
1671
1672                 if (named_curve)
1673                         {
1674                         int nid = OBJ_sn2nid(named_curve);
1675
1676                         if (nid == 0)
1677                                 {
1678                                 BIO_printf(bio_err, "unknown curve name (%s)\n", 
1679                                         named_curve);
1680                                 goto end;
1681                                 }
1682                         ecdh = EC_KEY_new_by_curve_name(nid);
1683                         if (ecdh == NULL)
1684                                 {
1685                                 BIO_printf(bio_err, "unable to create curve (%s)\n", 
1686                                         named_curve);
1687                                 goto end;
1688                                 }
1689                         }
1690
1691                 if (ecdh != NULL)
1692                         {
1693                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1694                         }
1695                 else
1696                         {
1697                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1698                         ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
1699                         if (ecdh == NULL) 
1700                                 {
1701                                 BIO_printf(bio_err, "unable to create curve (nistp256)\n");
1702                                 goto end;
1703                                 }
1704                         }
1705                 (void)BIO_flush(bio_s_out);
1706
1707                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1708 #ifndef OPENSSL_NO_TLSEXT
1709                 if (ctx2) 
1710                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1711 #endif
1712                 EC_KEY_free(ecdh);
1713                 }
1714 #endif
1715         
1716         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1717                 goto end;
1718 #ifndef OPENSSL_NO_TLSEXT
1719         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1720                 goto end; 
1721 #endif
1722         if (s_dcert != NULL)
1723                 {
1724                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1725                         goto end;
1726                 }
1727
1728 #ifndef OPENSSL_NO_RSA
1729 #if 1
1730         if (!no_tmp_rsa)
1731                 {
1732                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1733 #ifndef OPENSSL_NO_TLSEXT
1734                 if (ctx2) 
1735                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1736 #endif          
1737                 }
1738 #else
1739         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1740                 {
1741                 RSA *rsa;
1742
1743                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1744                 BIO_flush(bio_s_out);
1745
1746                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1747
1748                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1749                         {
1750                         ERR_print_errors(bio_err);
1751                         goto end;
1752                         }
1753 #ifndef OPENSSL_NO_TLSEXT
1754                         if (ctx2)
1755                                 {
1756                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1757                                         {
1758                                         ERR_print_errors(bio_err);
1759                                         goto end;
1760                                         }
1761                                 }
1762 #endif
1763                 RSA_free(rsa);
1764                 BIO_printf(bio_s_out,"\n");
1765                 }
1766 #endif
1767 #endif
1768
1769         if (no_resume_ephemeral)
1770                 {
1771                 SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb);
1772 #ifndef OPENSSL_NO_TLSEXT
1773                 if (ctx2)
1774                         SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb);
1775 #endif
1776                 }
1777
1778 #ifndef OPENSSL_NO_PSK
1779 #ifdef OPENSSL_NO_JPAKE
1780         if (psk_key != NULL)
1781 #else
1782         if (psk_key != NULL || jpake_secret)
1783 #endif
1784                 {
1785                 if (s_debug)
1786                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
1787                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1788                 }
1789
1790         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1791                 {
1792                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1793                 ERR_print_errors(bio_err);
1794                 goto end;
1795                 }
1796 #endif
1797
1798         if (cipher != NULL)
1799                 {
1800                 if(!SSL_CTX_set_cipher_list(ctx,cipher))
1801                         {
1802                         BIO_printf(bio_err,"error setting cipher list\n");
1803                         ERR_print_errors(bio_err);
1804                         goto end;
1805                         }
1806 #ifndef OPENSSL_NO_TLSEXT
1807                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1808                         {
1809                         BIO_printf(bio_err,"error setting cipher list\n");
1810                         ERR_print_errors(bio_err);
1811                         goto end;
1812                         }
1813 #endif
1814                 }
1815         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1816         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1817                 sizeof s_server_session_id_context);
1818
1819         /* Set DTLS cookie generation and verification callbacks */
1820         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1821         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1822
1823 #ifndef OPENSSL_NO_TLSEXT
1824         if (ctx2)
1825                 {
1826                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1827                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1828                         sizeof s_server_session_id_context);
1829
1830                 tlsextcbp.biodebug = bio_s_out;
1831                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1832                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1833                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1834                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1835                 }
1836 #endif
1837
1838 #ifndef OPENSSL_NO_SRP
1839         if (srp_verifier_file != NULL)
1840                 {
1841                 p.vb = SRP_VBASE_new(srpuserseed);
1842                 if ((ret = SRP_VBASE_init(p.vb, srp_verifier_file)) != SRP_NO_ERROR)
1843                         {
1844                         BIO_printf(bio_err,
1845                                            "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1846                                            srp_verifier_file,ret);
1847                                 goto end;
1848                         }
1849                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
1850                 SSL_CTX_set_srp_cb_arg(ctx, &p);                        
1851                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1852                 }
1853         else
1854 #endif
1855         if (CAfile != NULL)
1856                 {
1857                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1858 #ifndef OPENSSL_NO_TLSEXT
1859                 if (ctx2) 
1860                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1861 #endif
1862                 }
1863
1864         BIO_printf(bio_s_out,"ACCEPT\n");
1865         (void)BIO_flush(bio_s_out);
1866         if (www)
1867                 do_server(port,socket_type,&accept_socket,www_body, context);
1868         else
1869                 do_server(port,socket_type,&accept_socket,sv_body, context);
1870         print_stats(bio_s_out,ctx);
1871         ret=0;
1872 end:
1873         if (ctx != NULL) SSL_CTX_free(ctx);
1874         if (s_cert)
1875                 X509_free(s_cert);
1876         if (s_dcert)
1877                 X509_free(s_dcert);
1878         if (s_key)
1879                 EVP_PKEY_free(s_key);
1880         if (s_dkey)
1881                 EVP_PKEY_free(s_dkey);
1882         if (pass)
1883                 OPENSSL_free(pass);
1884         if (dpass)
1885                 OPENSSL_free(dpass);
1886         free_sessions();
1887 #ifndef OPENSSL_NO_TLSEXT
1888         if (ctx2 != NULL) SSL_CTX_free(ctx2);
1889         if (s_cert2)
1890                 X509_free(s_cert2);
1891         if (s_key2)
1892                 EVP_PKEY_free(s_key2);
1893 #endif
1894         if (bio_s_out != NULL)
1895                 {
1896         BIO_free(bio_s_out);
1897                 bio_s_out=NULL;
1898                 }
1899         apps_shutdown();
1900         OPENSSL_EXIT(ret);
1901         }
1902
1903 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1904         {
1905         BIO_printf(bio,"%4ld items in the session cache\n",
1906                 SSL_CTX_sess_number(ssl_ctx));
1907         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1908                 SSL_CTX_sess_connect(ssl_ctx));
1909         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1910                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1911         BIO_printf(bio,"%4ld client connects that finished\n",
1912                 SSL_CTX_sess_connect_good(ssl_ctx));
1913         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1914                 SSL_CTX_sess_accept(ssl_ctx));
1915         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1916                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1917         BIO_printf(bio,"%4ld server accepts that finished\n",
1918                 SSL_CTX_sess_accept_good(ssl_ctx));
1919         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1920         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1921         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1922         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1923         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1924                 SSL_CTX_sess_cache_full(ssl_ctx),
1925                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1926         }
1927
1928 static int sv_body(char *hostname, int s, unsigned char *context)
1929         {
1930         char *buf=NULL;
1931         fd_set readfds;
1932         int ret=1,width;
1933         int k,i;
1934         unsigned long l;
1935         SSL *con=NULL;
1936         BIO *sbio;
1937         struct timeval timeout;
1938 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1939         struct timeval tv;
1940 #else
1941         struct timeval *timeoutp;
1942 #endif
1943
1944         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1945                 {
1946                 BIO_printf(bio_err,"out of memory\n");
1947                 goto err;
1948                 }
1949 #ifdef FIONBIO  
1950         if (s_nbio)
1951                 {
1952                 unsigned long sl=1;
1953
1954                 if (!s_quiet)
1955                         BIO_printf(bio_err,"turning on non blocking io\n");
1956                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1957                         ERR_print_errors(bio_err);
1958                 }
1959 #endif
1960
1961         if (con == NULL) {
1962                 con=SSL_new(ctx);
1963 #ifndef OPENSSL_NO_TLSEXT
1964         if (s_tlsextdebug)
1965                 {
1966                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1967                 SSL_set_tlsext_debug_arg(con, bio_s_out);
1968                 }
1969         if (s_tlsextstatus)
1970                 {
1971                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
1972                 tlscstatp.err = bio_err;
1973                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
1974                 }
1975 #endif
1976 #ifndef OPENSSL_NO_KRB5
1977                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1978                         {
1979                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
1980                                                                 KRB5SVC);
1981                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
1982                                                                 KRB5KEYTAB);
1983                         }
1984 #endif  /* OPENSSL_NO_KRB5 */
1985                 if(context)
1986                       SSL_set_session_id_context(con, context,
1987                                                  strlen((char *)context));
1988         }
1989         SSL_clear(con);
1990 #if 0
1991 #ifdef TLSEXT_TYPE_opaque_prf_input
1992         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
1993 #endif
1994 #endif
1995
1996         if (SSL_version(con) == DTLS1_VERSION)
1997                 {
1998
1999                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2000
2001                 if (enable_timeouts)
2002                         {
2003                         timeout.tv_sec = 0;
2004                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2005                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2006                         
2007                         timeout.tv_sec = 0;
2008                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2009                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2010                         }
2011
2012                 if (socket_mtu > 28)
2013                         {
2014                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2015                         SSL_set_mtu(con, socket_mtu - 28);
2016                         }
2017                 else
2018                         /* want to do MTU discovery */
2019                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2020
2021         /* turn on cookie exchange */
2022         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2023                 }
2024         else
2025                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2026
2027         if (s_nbio_test)
2028                 {
2029                 BIO *test;
2030
2031                 test=BIO_new(BIO_f_nbio_test());
2032                 sbio=BIO_push(test,sbio);
2033                 }
2034 #ifndef OPENSSL_NO_JPAKE
2035         if(jpake_secret)
2036                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2037 #endif
2038
2039         SSL_set_bio(con,sbio,sbio);
2040         SSL_set_accept_state(con);
2041         /* SSL_set_fd(con,s); */
2042
2043         if (s_debug)
2044                 {
2045                 con->debug=1;
2046                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2047                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2048                 }
2049         if (s_msg)
2050                 {
2051                 SSL_set_msg_callback(con, msg_cb);
2052                 SSL_set_msg_callback_arg(con, bio_s_out);
2053                 }
2054 #ifndef OPENSSL_NO_TLSEXT
2055         if (s_tlsextdebug)
2056                 {
2057                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2058                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2059                 }
2060 #endif
2061
2062         width=s+1;
2063         for (;;)
2064                 {
2065                 int read_from_terminal;
2066                 int read_from_sslcon;
2067
2068                 read_from_terminal = 0;
2069                 read_from_sslcon = SSL_pending(con);
2070
2071                 if (!read_from_sslcon)
2072                         {
2073                         FD_ZERO(&readfds);
2074 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2075                         openssl_fdset(fileno(stdin),&readfds);
2076 #endif
2077                         openssl_fdset(s,&readfds);
2078                         /* Note: under VMS with SOCKETSHR the second parameter is
2079                          * currently of type (int *) whereas under other systems
2080                          * it is (void *) if you don't have a cast it will choke
2081                          * the compiler: if you do have a cast then you can either
2082                          * go for (int *) or (void *).
2083                          */
2084 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2085                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2086                          * on sockets. As a workaround we timeout the select every
2087                          * second and check for any keypress. In a proper Windows
2088                          * application we wouldn't do this because it is inefficient.
2089                          */
2090                         tv.tv_sec = 1;
2091                         tv.tv_usec = 0;
2092                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2093                         if((i < 0) || (!i && !_kbhit() ) )continue;
2094                         if(_kbhit())
2095                                 read_from_terminal = 1;
2096 #elif defined(OPENSSL_SYS_BEOS_R5)
2097                         /* Under BeOS-R5 the situation is similar to DOS */
2098                         tv.tv_sec = 1;
2099                         tv.tv_usec = 0;
2100                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2101                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2102                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2103                                 continue;
2104                         if (read(fileno(stdin), buf, 0) >= 0)
2105                                 read_from_terminal = 1;
2106                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2107 #else
2108                         if ((SSL_version(con) == DTLS1_VERSION) &&
2109                                 DTLSv1_get_timeout(con, &timeout))
2110                                 timeoutp = &timeout;
2111                         else
2112                                 timeoutp = NULL;
2113
2114                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2115
2116                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2117                                 {
2118                                 BIO_printf(bio_err,"TIMEOUT occured\n");
2119                                 }
2120
2121                         if (i <= 0) continue;
2122                         if (FD_ISSET(fileno(stdin),&readfds))
2123                                 read_from_terminal = 1;
2124 #endif
2125                         if (FD_ISSET(s,&readfds))
2126                                 read_from_sslcon = 1;
2127                         }
2128                 if (read_from_terminal)
2129                         {
2130                         if (s_crlf)
2131                                 {
2132                                 int j, lf_num;
2133
2134                                 i=raw_read_stdin(buf, bufsize/2);
2135                                 lf_num = 0;
2136                                 /* both loops are skipped when i <= 0 */
2137                                 for (j = 0; j < i; j++)
2138                                         if (buf[j] == '\n')
2139                                                 lf_num++;
2140                                 for (j = i-1; j >= 0; j--)
2141                                         {
2142                                         buf[j+lf_num] = buf[j];
2143                                         if (buf[j] == '\n')
2144                                                 {
2145                                                 lf_num--;
2146                                                 i++;
2147                                                 buf[j+lf_num] = '\r';
2148                                                 }
2149                                         }
2150                                 assert(lf_num == 0);
2151                                 }
2152                         else
2153                                 i=raw_read_stdin(buf,bufsize);
2154                         if (!s_quiet)
2155                                 {
2156                                 if ((i <= 0) || (buf[0] == 'Q'))
2157                                         {
2158                                         BIO_printf(bio_s_out,"DONE\n");
2159                                         SHUTDOWN(s);
2160                                         close_accept_socket();
2161                                         ret= -11;
2162                                         goto err;
2163                                         }
2164                                 if ((i <= 0) || (buf[0] == 'q'))
2165                                         {
2166                                         BIO_printf(bio_s_out,"DONE\n");
2167                                         if (SSL_version(con) != DTLS1_VERSION)
2168                         SHUTDOWN(s);
2169         /*                              close_accept_socket();
2170                                         ret= -11;*/
2171                                         goto err;
2172                                         }
2173
2174                                 if ((buf[0] == 'r') && 
2175                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2176                                         {
2177                                         SSL_renegotiate(con);
2178                                         i=SSL_do_handshake(con);
2179                                         printf("SSL_do_handshake -> %d\n",i);
2180                                         i=0; /*13; */
2181                                         continue;
2182                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2183                                         }
2184                                 if ((buf[0] == 'R') &&
2185                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2186                                         {
2187                                         SSL_set_verify(con,
2188                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2189                                         SSL_renegotiate(con);
2190                                         i=SSL_do_handshake(con);
2191                                         printf("SSL_do_handshake -> %d\n",i);
2192                                         i=0; /* 13; */
2193                                         continue;
2194                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2195                                         }
2196                                 if (buf[0] == 'P')
2197                                         {
2198                                         static const char *str="Lets print some clear text\n";
2199                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2200                                         }
2201                                 if (buf[0] == 'S')
2202                                         {
2203                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2204                                         }
2205                                 }
2206 #ifdef CHARSET_EBCDIC
2207                         ebcdic2ascii(buf,buf,i);
2208 #endif
2209                         l=k=0;
2210                         for (;;)
2211                                 {
2212                                 /* should do a select for the write */
2213 #ifdef RENEG
2214 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2215 #endif
2216                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2217                                 switch (SSL_get_error(con,k))
2218                                         {
2219                                 case SSL_ERROR_NONE:
2220                                         break;
2221                                 case SSL_ERROR_WANT_WRITE:
2222                                 case SSL_ERROR_WANT_READ:
2223                                 case SSL_ERROR_WANT_X509_LOOKUP:
2224                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2225                                         break;
2226                                 case SSL_ERROR_SYSCALL:
2227                                 case SSL_ERROR_SSL:
2228                                         BIO_printf(bio_s_out,"ERROR\n");
2229                                         ERR_print_errors(bio_err);
2230                                         ret=1;
2231                                         goto err;
2232                                         /* break; */
2233                                 case SSL_ERROR_ZERO_RETURN:
2234                                         BIO_printf(bio_s_out,"DONE\n");
2235                                         ret=1;
2236                                         goto err;
2237                                         }
2238                                 l+=k;
2239                                 i-=k;
2240                                 if (i <= 0) break;
2241                                 }
2242                         }
2243                 if (read_from_sslcon)
2244                         {
2245                         if (!SSL_is_init_finished(con))
2246                                 {
2247                                 i=init_ssl_connection(con);
2248                                 
2249                                 if (i < 0)
2250                                         {
2251                                         ret=0;
2252                                         goto err;
2253                                         }
2254                                 else if (i == 0)
2255                                         {
2256                                         ret=1;
2257                                         goto err;
2258                                         }
2259                                 }
2260                         else
2261                                 {
2262 again:  
2263                                 i=SSL_read(con,(char *)buf,bufsize);
2264                                 switch (SSL_get_error(con,i))
2265                                         {
2266                                 case SSL_ERROR_NONE:
2267 #ifdef CHARSET_EBCDIC
2268                                         ascii2ebcdic(buf,buf,i);
2269 #endif
2270                                         raw_write_stdout(buf,
2271                                                 (unsigned int)i);
2272                                         if (SSL_pending(con)) goto again;
2273                                         break;
2274                                 case SSL_ERROR_WANT_WRITE:
2275                                 case SSL_ERROR_WANT_READ:
2276                                 case SSL_ERROR_WANT_X509_LOOKUP:
2277                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2278                                         break;
2279                                 case SSL_ERROR_SYSCALL:
2280                                 case SSL_ERROR_SSL:
2281                                         BIO_printf(bio_s_out,"ERROR\n");
2282                                         ERR_print_errors(bio_err);
2283                                         ret=1;
2284                                         goto err;
2285                                 case SSL_ERROR_ZERO_RETURN:
2286                                         BIO_printf(bio_s_out,"DONE\n");
2287                                         ret=1;
2288                                         goto err;
2289                                         }
2290                                 }
2291                         }
2292                 }
2293 err:
2294         if (con != NULL)
2295                 {
2296                 BIO_printf(bio_s_out,"shutting down SSL\n");
2297 #if 1
2298                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2299 #else
2300                 SSL_shutdown(con);
2301 #endif
2302                 SSL_free(con);
2303                 }
2304         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2305         if (buf != NULL)
2306                 {
2307                 OPENSSL_cleanse(buf,bufsize);
2308                 OPENSSL_free(buf);
2309                 }
2310         if (ret >= 0)
2311                 BIO_printf(bio_s_out,"ACCEPT\n");
2312         return(ret);
2313         }
2314
2315 static void close_accept_socket(void)
2316         {
2317         BIO_printf(bio_err,"shutdown accept socket\n");
2318         if (accept_socket >= 0)
2319                 {
2320                 SHUTDOWN2(accept_socket);
2321                 }
2322         }
2323
2324 static int init_ssl_connection(SSL *con)
2325         {
2326         int i;
2327         const char *str;
2328         X509 *peer;
2329         long verify_error;
2330         MS_STATIC char buf[BUFSIZ];
2331 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2332         const unsigned char *next_proto_neg;
2333         unsigned next_proto_neg_len;
2334 #endif
2335
2336         if ((i=SSL_accept(con)) <= 0)
2337                 {
2338                 if (BIO_sock_should_retry(i))
2339                         {
2340                         BIO_printf(bio_s_out,"DELAY\n");
2341                         return(1);
2342                         }
2343
2344                 BIO_printf(bio_err,"ERROR\n");
2345                 verify_error=SSL_get_verify_result(con);
2346                 if (verify_error != X509_V_OK)
2347                         {
2348                         BIO_printf(bio_err,"verify error:%s\n",
2349                                 X509_verify_cert_error_string(verify_error));
2350                         }
2351                 else
2352                         ERR_print_errors(bio_err);
2353                 return(0);
2354                 }
2355
2356         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2357
2358         peer=SSL_get_peer_certificate(con);
2359         if (peer != NULL)
2360                 {
2361                 BIO_printf(bio_s_out,"Client certificate\n");
2362                 PEM_write_bio_X509(bio_s_out,peer);
2363                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2364                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2365                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2366                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2367                 X509_free(peer);
2368                 }
2369
2370         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2371                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2372         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2373         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2374 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2375         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2376         if (next_proto_neg)
2377                 {
2378                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2379                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2380                 BIO_printf(bio_s_out, "\n");
2381                 }
2382 #endif
2383         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
2384         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2385                 TLS1_FLAGS_TLS_PADDING_BUG)
2386                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
2387 #ifndef OPENSSL_NO_KRB5
2388         if (con->kssl_ctx->client_princ != NULL)
2389                 {
2390                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2391                         con->kssl_ctx->client_princ);
2392                 }
2393 #endif /* OPENSSL_NO_KRB5 */
2394         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2395                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2396         return(1);
2397         }
2398
2399 #ifndef OPENSSL_NO_DH
2400 static DH *load_dh_param(const char *dhfile)
2401         {
2402         DH *ret=NULL;
2403         BIO *bio;
2404
2405         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2406                 goto err;
2407         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2408 err:
2409         if (bio != NULL) BIO_free(bio);
2410         return(ret);
2411         }
2412 #endif
2413
2414 #if 0
2415 static int load_CA(SSL_CTX *ctx, char *file)
2416         {
2417         FILE *in;
2418         X509 *x=NULL;
2419
2420         if ((in=fopen(file,"r")) == NULL)
2421                 return(0);
2422
2423         for (;;)
2424                 {
2425                 if (PEM_read_X509(in,&x,NULL) == NULL)
2426                         break;
2427                 SSL_CTX_add_client_CA(ctx,x);
2428                 }
2429         if (x != NULL) X509_free(x);
2430         fclose(in);
2431         return(1);
2432         }
2433 #endif
2434
2435 static int www_body(char *hostname, int s, unsigned char *context)
2436         {
2437         char *buf=NULL;
2438         int ret=1;
2439         int i,j,k,dot;
2440         SSL *con;
2441         const SSL_CIPHER *c;
2442         BIO *io,*ssl_bio,*sbio;
2443
2444         buf=OPENSSL_malloc(bufsize);
2445         if (buf == NULL) return(0);
2446         io=BIO_new(BIO_f_buffer());
2447         ssl_bio=BIO_new(BIO_f_ssl());
2448         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2449
2450 #ifdef FIONBIO  
2451         if (s_nbio)
2452                 {
2453                 unsigned long sl=1;
2454
2455                 if (!s_quiet)
2456                         BIO_printf(bio_err,"turning on non blocking io\n");
2457                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2458                         ERR_print_errors(bio_err);
2459                 }
2460 #endif
2461
2462         /* lets make the output buffer a reasonable size */
2463         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2464
2465         if ((con=SSL_new(ctx)) == NULL) goto err;
2466 #ifndef OPENSSL_NO_TLSEXT
2467                 if (s_tlsextdebug)
2468                         {
2469                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2470                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2471                         }
2472 #endif
2473 #ifndef OPENSSL_NO_KRB5
2474         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
2475                 {
2476                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
2477                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
2478                 }
2479 #endif  /* OPENSSL_NO_KRB5 */
2480         if(context) SSL_set_session_id_context(con, context,
2481                                                strlen((char *)context));
2482
2483         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2484         if (s_nbio_test)
2485                 {
2486                 BIO *test;
2487
2488                 test=BIO_new(BIO_f_nbio_test());
2489                 sbio=BIO_push(test,sbio);
2490                 }
2491         SSL_set_bio(con,sbio,sbio);
2492         SSL_set_accept_state(con);
2493         /* SSL_set_fd(con,s); */
2494         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2495         BIO_push(io,ssl_bio);
2496 #ifdef CHARSET_EBCDIC
2497         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2498 #endif
2499
2500         if (s_debug)
2501                 {
2502                 con->debug=1;
2503                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2504                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2505                 }
2506         if (s_msg)
2507                 {
2508                 SSL_set_msg_callback(con, msg_cb);
2509                 SSL_set_msg_callback_arg(con, bio_s_out);
2510                 }
2511
2512         for (;;)
2513                 {
2514                 if (hack)
2515                         {
2516                         i=SSL_accept(con);
2517
2518                         switch (SSL_get_error(con,i))
2519                                 {
2520                         case SSL_ERROR_NONE:
2521                                 break;
2522                         case SSL_ERROR_WANT_WRITE:
2523                         case SSL_ERROR_WANT_READ:
2524                         case SSL_ERROR_WANT_X509_LOOKUP:
2525                                 continue;
2526                         case SSL_ERROR_SYSCALL:
2527                         case SSL_ERROR_SSL:
2528                         case SSL_ERROR_ZERO_RETURN:
2529                                 ret=1;
2530                                 goto err;
2531                                 /* break; */
2532                                 }
2533
2534                         SSL_renegotiate(con);
2535                         SSL_write(con,NULL,0);
2536                         }
2537
2538                 i=BIO_gets(io,buf,bufsize-1);
2539                 if (i < 0) /* error */
2540                         {
2541                         if (!BIO_should_retry(io))
2542                                 {
2543                                 if (!s_quiet)
2544                                         ERR_print_errors(bio_err);
2545                                 goto err;
2546                                 }
2547                         else
2548                                 {
2549                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2550 #if defined(OPENSSL_SYS_NETWARE)
2551             delay(1000);
2552 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2553                                 sleep(1);
2554 #endif
2555                                 continue;
2556                                 }
2557                         }
2558                 else if (i == 0) /* end of input */
2559                         {
2560                         ret=1;
2561                         goto end;
2562                         }
2563
2564                 /* else we have data */
2565                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2566                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2567                         {
2568                         char *p;
2569                         X509 *peer;
2570                         STACK_OF(SSL_CIPHER) *sk;
2571                         static const char *space="                          ";
2572
2573                 if (www == 1 && strncmp("GET /reneg", buf, 10) == 0)
2574                         {
2575                         if (strncmp("GET /renegcert", buf, 14) == 0)
2576                                 SSL_set_verify(con,
2577                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2578                         i=SSL_renegotiate(con);
2579                         BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n",i);
2580                         i=SSL_do_handshake(con);
2581                         if (i <= 0)
2582                                 {
2583                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2584                                 ERR_print_errors(bio_err);
2585                                 goto err;
2586                                 }
2587                         /* EVIL HACK! */
2588                         con->state = SSL_ST_ACCEPT;
2589                         i=SSL_do_handshake(con);
2590                         BIO_printf(bio_s_out, "SSL_do_handshake -> %d\n",i);
2591                         if (i <= 0)
2592                                 {
2593                                 BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i));
2594                                 ERR_print_errors(bio_err);
2595                                 goto err;
2596                                 }
2597                         }
2598
2599                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2600                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2601                         BIO_puts(io,"<pre>\n");
2602 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2603                         BIO_puts(io,"\n");
2604                         for (i=0; i<local_argc; i++)
2605                                 {
2606                                 BIO_puts(io,local_argv[i]);
2607                                 BIO_write(io," ",1);
2608                                 }
2609                         BIO_puts(io,"\n");
2610
2611                         BIO_printf(io,
2612                                 "Secure Renegotiation IS%s supported\n",
2613                                 SSL_get_secure_renegotiation_support(con) ?
2614                                                         "" : " NOT");
2615
2616                         /* The following is evil and should not really
2617                          * be done */
2618                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2619                         sk=SSL_get_ciphers(con);
2620                         j=sk_SSL_CIPHER_num(sk);
2621                         for (i=0; i<j; i++)
2622                                 {
2623                                 c=sk_SSL_CIPHER_value(sk,i);
2624                                 BIO_printf(io,"%-11s:%-25s",
2625                                         SSL_CIPHER_get_version(c),
2626                                         SSL_CIPHER_get_name(c));
2627                                 if ((((i+1)%2) == 0) && (i+1 != j))
2628                                         BIO_puts(io,"\n");
2629                                 }
2630                         BIO_puts(io,"\n");
2631                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2632                         if (p != NULL)
2633                                 {
2634                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2635                                 j=i=0;
2636                                 while (*p)
2637                                         {
2638                                         if (*p == ':')
2639                                                 {
2640                                                 BIO_write(io,space,26-j);
2641                                                 i++;
2642                                                 j=0;
2643                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2644                                                 }
2645                                         else
2646                                                 {
2647                                                 BIO_write(io,p,1);
2648                                                 j++;
2649                                                 }
2650                                         p++;
2651                                         }
2652                                 BIO_puts(io,"\n");
2653                                 }
2654                         BIO_printf(io,((con->hit)
2655                                 ?"---\nReused, "
2656                                 :"---\nNew, "));
2657                         c=SSL_get_current_cipher(con);
2658                         BIO_printf(io,"%s, Cipher is %s\n",
2659                                 SSL_CIPHER_get_version(c),
2660                                 SSL_CIPHER_get_name(c));
2661                         SSL_SESSION_print(io,SSL_get_session(con));
2662                         BIO_printf(io,"---\n");
2663                         print_stats(io,SSL_get_SSL_CTX(con));
2664                         BIO_printf(io,"---\n");
2665                         peer=SSL_get_peer_certificate(con);
2666                         if (peer != NULL)
2667                                 {
2668                                 BIO_printf(io,"Client certificate\n");
2669                                 X509_print(io,peer);
2670                                 PEM_write_bio_X509(io,peer);
2671                                 }
2672                         else
2673                                 BIO_puts(io,"no client certificate available\n");
2674                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2675                         break;
2676                         }
2677                 else if ((www == 2 || www == 3)
2678                          && (strncmp("GET /",buf,5) == 0))
2679                         {
2680                         BIO *file;
2681                         char *p,*e;
2682                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2683
2684                         /* skip the '/' */
2685                         p= &(buf[5]);
2686
2687                         dot = 1;
2688                         for (e=p; *e != '\0'; e++)
2689                                 {
2690                                 if (e[0] == ' ')
2691                                         break;
2692
2693                                 switch (dot)
2694                                         {
2695                                 case 1:
2696                                         dot = (e[0] == '.') ? 2 : 0;
2697                                         break;
2698                                 case 2:
2699                                         dot = (e[0] == '.') ? 3 : 0;
2700                                         break;
2701                                 case 3:
2702                                         dot = (e[0] == '/') ? -1 : 0;
2703                                         break;
2704                                         }
2705                                 if (dot == 0)
2706                                         dot = (e[0] == '/') ? 1 : 0;
2707                                 }
2708                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2709
2710                         if (*e == '\0')
2711                                 {
2712                                 BIO_puts(io,text);
2713                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2714                                 break;
2715                                 }
2716                         *e='\0';
2717
2718                         if (dot)
2719                                 {
2720                                 BIO_puts(io,text);
2721                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2722                                 break;
2723                                 }
2724
2725                         if (*p == '/')
2726                                 {
2727                                 BIO_puts(io,text);
2728                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2729                                 break;
2730                                 }
2731
2732 #if 0
2733                         /* append if a directory lookup */
2734                         if (e[-1] == '/')
2735                                 strcat(p,"index.html");
2736 #endif
2737
2738                         /* if a directory, do the index thang */
2739                         if (app_isdir(p)>0)
2740                                 {
2741 #if 0 /* must check buffer size */
2742                                 strcat(p,"/index.html");
2743 #else
2744                                 BIO_puts(io,text);
2745                                 BIO_printf(io,"'%s' is a directory\r\n",p);
2746                                 break;
2747 #endif
2748                                 }
2749
2750                         if ((file=BIO_new_file(p,"r")) == NULL)
2751                                 {
2752                                 BIO_puts(io,text);
2753                                 BIO_printf(io,"Error opening '%s'\r\n",p);
2754                                 ERR_print_errors(io);
2755                                 break;
2756                                 }
2757
2758                         if (!s_quiet)
2759                                 BIO_printf(bio_err,"FILE:%s\n",p);
2760
2761                         if (www == 2)
2762                                 {
2763                                 i=strlen(p);
2764                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2765                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2766                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2767                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2768                                 else
2769                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2770                                 }
2771                         /* send the file */
2772                         for (;;)
2773                                 {
2774                                 i=BIO_read(file,buf,bufsize);
2775                                 if (i <= 0) break;
2776
2777 #ifdef RENEG
2778                                 total_bytes+=i;
2779                                 fprintf(stderr,"%d\n",i);
2780                                 if (total_bytes > 3*1024)
2781                                         {
2782                                         total_bytes=0;
2783                                         fprintf(stderr,"RENEGOTIATE\n");
2784                                         SSL_renegotiate(con);
2785                                         }
2786 #endif
2787
2788                                 for (j=0; j<i; )
2789                                         {
2790 #ifdef RENEG
2791 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2792 #endif
2793                                         k=BIO_write(io,&(buf[j]),i-j);
2794                                         if (k <= 0)
2795                                                 {
2796                                                 if (!BIO_should_retry(io))
2797                                                         goto write_error;
2798                                                 else
2799                                                         {
2800                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2801                                                         }
2802                                                 }
2803                                         else
2804                                                 {
2805                                                 j+=k;
2806                                                 }
2807                                         }
2808                                 }
2809 write_error:
2810                         BIO_free(file);
2811                         break;
2812                         }
2813                 }
2814
2815         for (;;)
2816                 {
2817                 i=(int)BIO_flush(io);
2818                 if (i <= 0)
2819                         {
2820                         if (!BIO_should_retry(io))
2821                                 break;
2822                         }
2823                 else
2824                         break;
2825                 }
2826 end:
2827 #if 1
2828         /* make sure we re-use sessions */
2829         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2830 #else
2831         /* This kills performance */
2832 /*      SSL_shutdown(con); A shutdown gets sent in the
2833  *      BIO_free_all(io) procession */
2834 #endif
2835
2836 err:
2837
2838         if (ret >= 0)
2839                 BIO_printf(bio_s_out,"ACCEPT\n");
2840
2841         if (buf != NULL) OPENSSL_free(buf);
2842         if (io != NULL) BIO_free_all(io);
2843 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2844         return(ret);
2845         }
2846
2847 #ifndef OPENSSL_NO_RSA
2848 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2849         {
2850         BIGNUM *bn = NULL;
2851         static RSA *rsa_tmp=NULL;
2852
2853         if (!rsa_tmp && ((bn = BN_new()) == NULL))
2854                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
2855         if (!rsa_tmp && bn)
2856                 {
2857                 if (!s_quiet)
2858                         {
2859                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
2860                         (void)BIO_flush(bio_err);
2861                         }
2862                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2863                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
2864                         {
2865                         if(rsa_tmp) RSA_free(rsa_tmp);
2866                         rsa_tmp = NULL;
2867                         }
2868                 if (!s_quiet)
2869                         {
2870                         BIO_printf(bio_err,"\n");
2871                         (void)BIO_flush(bio_err);
2872                         }
2873                 BN_free(bn);
2874                 }
2875         return(rsa_tmp);
2876         }
2877 #endif
2878
2879 #define MAX_SESSION_ID_ATTEMPTS 10
2880 static int generate_session_id(const SSL *ssl, unsigned char *id,
2881                                 unsigned int *id_len)
2882         {
2883         unsigned int count = 0;
2884         do      {
2885                 RAND_pseudo_bytes(id, *id_len);
2886                 /* Prefix the session_id with the required prefix. NB: If our
2887                  * prefix is too long, clip it - but there will be worse effects
2888                  * anyway, eg. the server could only possibly create 1 session
2889                  * ID (ie. the prefix!) so all future session negotiations will
2890                  * fail due to conflicts. */
2891                 memcpy(id, session_id_prefix,
2892                         (strlen(session_id_prefix) < *id_len) ?
2893                         strlen(session_id_prefix) : *id_len);
2894                 }
2895         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
2896                 (++count < MAX_SESSION_ID_ATTEMPTS));
2897         if(count >= MAX_SESSION_ID_ATTEMPTS)
2898                 return 0;
2899         return 1;
2900         }
2901
2902 /* By default s_server uses an in-memory cache which caches SSL_SESSION
2903  * structures without any serialisation. This hides some bugs which only
2904  * become apparent in deployed servers. By implementing a basic external
2905  * session cache some issues can be debugged using s_server.
2906  */
2907
2908 typedef struct simple_ssl_session_st
2909         {
2910         unsigned char *id;
2911         int idlen;
2912         unsigned char *der;
2913         int derlen;
2914         struct simple_ssl_session_st *next;
2915         } simple_ssl_session;
2916
2917 static simple_ssl_session *first = NULL;
2918
2919 static int add_session(SSL *ssl, SSL_SESSION *session)
2920         {
2921         simple_ssl_session *sess;
2922         unsigned char *p;
2923
2924         sess = OPENSSL_malloc(sizeof(simple_ssl_session));
2925
2926         sess->idlen = session->session_id_length;
2927         sess->derlen = i2d_SSL_SESSION(session, NULL);
2928
2929         sess->id = BUF_memdup(session->session_id, sess->idlen);
2930
2931         sess->der = OPENSSL_malloc(sess->derlen);
2932         p = sess->der;
2933         i2d_SSL_SESSION(session, &p);
2934
2935         sess->next = first;
2936         first = sess;
2937         BIO_printf(bio_err, "New session added to external cache\n");
2938         return 0;
2939         }
2940
2941 static SSL_SESSION *get_session(SSL *ssl, unsigned char *id, int idlen,
2942                                         int *do_copy)
2943         {
2944         simple_ssl_session *sess;
2945         *do_copy = 0;
2946         for (sess = first; sess; sess = sess->next)
2947                 {
2948                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
2949                         {
2950                         const unsigned char *p = sess->der;
2951                         BIO_printf(bio_err, "Lookup session: cache hit\n");
2952                         return d2i_SSL_SESSION(NULL, &p, sess->derlen);
2953                         }
2954                 }
2955         BIO_printf(bio_err, "Lookup session: cache miss\n");
2956         return NULL;
2957         }
2958
2959 static void del_session(SSL_CTX *sctx, SSL_SESSION *session)
2960         {
2961         simple_ssl_session *sess, *prev = NULL;
2962         unsigned char *id = session->session_id;
2963         int idlen = session->session_id_length;
2964         for (sess = first; sess; sess = sess->next)
2965                 {
2966                 if (idlen == sess->idlen && !memcmp(sess->id, id, idlen))
2967                         {
2968                         if(prev)
2969                                 prev->next = sess->next;
2970                         else
2971                                 first = sess->next;
2972                         OPENSSL_free(sess->id);
2973                         OPENSSL_free(sess->der);
2974                         OPENSSL_free(sess);
2975                         return;
2976                         }
2977                 prev = sess;
2978                 }
2979         }
2980
2981 static void init_session_cache_ctx(SSL_CTX *sctx)
2982         {
2983         SSL_CTX_set_session_cache_mode(sctx,
2984                         SSL_SESS_CACHE_NO_INTERNAL|SSL_SESS_CACHE_SERVER);
2985         SSL_CTX_sess_set_new_cb(sctx, add_session);
2986         SSL_CTX_sess_set_get_cb(sctx, get_session);
2987         SSL_CTX_sess_set_remove_cb(sctx, del_session);
2988         }
2989
2990 static void free_sessions(void)
2991         {
2992         simple_ssl_session *sess, *tsess;
2993         for (sess = first; sess;)
2994                 {
2995                 OPENSSL_free(sess->id);
2996                 OPENSSL_free(sess->der);
2997                 tsess = sess;
2998                 sess = sess->next;
2999                 OPENSSL_free(tsess);
3000                 }
3001         first = NULL;
3002         }
3003         
3004
3005
3006
3007
3008
3009
3010         
3011
3012