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 /*
144 * Until the key-gen callbacks are modified to use newer prototypes, we allow
145 * deprecated functions for openssl-internal code
146 */
147 #ifdef OPENSSL_NO_DEPRECATED
148 # undef OPENSSL_NO_DEPRECATED
149 #endif
150
151 #include <assert.h>
152 #include <ctype.h>
153 #include <stdio.h>
154 #include <stdlib.h>
155 #include <string.h>
156
157 #include <openssl/e_os2.h>
158 #ifdef OPENSSL_NO_STDIO
159 # define APPS_WIN16
160 #endif
161
162 /* conflicts with winsock2 stuff on netware */
163 #if !defined(OPENSSL_SYS_NETWARE)
164 # include <sys/types.h>
165 #endif
166
167 /*
168 * With IPv6, it looks like Digital has mixed up the proper order of
169 * recursive header file inclusion, resulting in the compiler complaining
170 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
171 * needed to have fileno() declared correctly... So let's define u_int
172 */
173 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
174 # define __U_INT
175 typedef unsigned int u_int;
176 #endif
177
178 #include <openssl/lhash.h>
179 #include <openssl/bn.h>
180 #define USE_SOCKETS
181 #include "apps.h"
182 #include <openssl/err.h>
183 #include <openssl/pem.h>
184 #include <openssl/x509.h>
185 #include <openssl/ssl.h>
186 #include <openssl/rand.h>
187 #include <openssl/ocsp.h>
188 #ifndef OPENSSL_NO_DH
189 # include <openssl/dh.h>
190 #endif
191 #ifndef OPENSSL_NO_RSA
192 # include <openssl/rsa.h>
193 #endif
194 #ifndef OPENSSL_NO_SRP
195 # include <openssl/srp.h>
196 #endif
197 #include "s_apps.h"
198 #include "timeouts.h"
199
200 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
201 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
202 # undef FIONBIO
203 #endif
204
205 #if defined(OPENSSL_SYS_BEOS_R5)
206 # include <fcntl.h>
207 #endif
208
209 #ifndef OPENSSL_NO_RSA
210 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
211 #endif
212 static int sv_body(char *hostname, int s, unsigned char *context);
213 static int www_body(char *hostname, int s, unsigned char *context);
214 static void close_accept_socket(void);
215 static void sv_usage(void);
216 static int init_ssl_connection(SSL *s);
217 static void print_stats(BIO *bp, SSL_CTX *ctx);
218 static int generate_session_id(const SSL *ssl, unsigned char *id,
219 unsigned int *id_len);
220 #ifndef OPENSSL_NO_DH
221 static DH *load_dh_param(const char *dhfile);
222 static DH *get_dh2048(void);
223 #endif
224
225 #ifdef MONOLITH
226 static void s_server_init(void);
227 #endif
228
229 #ifndef OPENSSL_NO_DH
230 static unsigned char dh2048_p[] = {
231 0xF6,0x42,0x57,0xB7,0x08,0x7F,0x08,0x17,0x72,0xA2,0xBA,0xD6,
232 0xA9,0x42,0xF3,0x05,0xE8,0xF9,0x53,0x11,0x39,0x4F,0xB6,0xF1,
233 0x6E,0xB9,0x4B,0x38,0x20,0xDA,0x01,0xA7,0x56,0xA3,0x14,0xE9,
234 0x8F,0x40,0x55,0xF3,0xD0,0x07,0xC6,0xCB,0x43,0xA9,0x94,0xAD,
235 0xF7,0x4C,0x64,0x86,0x49,0xF8,0x0C,0x83,0xBD,0x65,0xE9,0x17,
236 0xD4,0xA1,0xD3,0x50,0xF8,0xF5,0x59,0x5F,0xDC,0x76,0x52,0x4F,
237 0x3D,0x3D,0x8D,0xDB,0xCE,0x99,0xE1,0x57,0x92,0x59,0xCD,0xFD,
238 0xB8,0xAE,0x74,0x4F,0xC5,0xFC,0x76,0xBC,0x83,0xC5,0x47,0x30,
239 0x61,0xCE,0x7C,0xC9,0x66,0xFF,0x15,0xF9,0xBB,0xFD,0x91,0x5E,
240 0xC7,0x01,0xAA,0xD3,0x5B,0x9E,0x8D,0xA0,0xA5,0x72,0x3A,0xD4,
241 0x1A,0xF0,0xBF,0x46,0x00,0x58,0x2B,0xE5,0xF4,0x88,0xFD,0x58,
242 0x4E,0x49,0xDB,0xCD,0x20,0xB4,0x9D,0xE4,0x91,0x07,0x36,0x6B,
243 0x33,0x6C,0x38,0x0D,0x45,0x1D,0x0F,0x7C,0x88,0xB3,0x1C,0x7C,
244 0x5B,0x2D,0x8E,0xF6,0xF3,0xC9,0x23,0xC0,0x43,0xF0,0xA5,0x5B,
245 0x18,0x8D,0x8E,0xBB,0x55,0x8C,0xB8,0x5D,0x38,0xD3,0x34,0xFD,
246 0x7C,0x17,0x57,0x43,0xA3,0x1D,0x18,0x6C,0xDE,0x33,0x21,0x2C,
247 0xB5,0x2A,0xFF,0x3C,0xE1,0xB1,0x29,0x40,0x18,0x11,0x8D,0x7C,
248 0x84,0xA7,0x0A,0x72,0xD6,0x86,0xC4,0x03,0x19,0xC8,0x07,0x29,
249 0x7A,0xCA,0x95,0x0C,0xD9,0x96,0x9F,0xAB,0xD0,0x0A,0x50,0x9B,
250 0x02,0x46,0xD3,0x08,0x3D,0x66,0xA4,0x5D,0x41,0x9F,0x9C,0x7C,
251 0xBD,0x89,0x4B,0x22,0x19,0x26,0xBA,0xAB,0xA2,0x5E,0xC3,0x55,
252 0xE9,0x32,0x0B,0x3B,
253 };
254
255 static unsigned char dh2048_g[] = {
256 0x02,
257 };
258
get_dh2048()259 DH *get_dh2048()
260 {
261 DH *dh;
262
263 if ((dh = DH_new()) == NULL)
264 return NULL;
265 dh->p=BN_bin2bn(dh2048_p, sizeof(dh2048_p), NULL);
266 dh->g=BN_bin2bn(dh2048_g, sizeof(dh2048_g), NULL);
267 if (dh->p == NULL || dh->g == NULL) {
268 DH_free(dh);
269 return NULL;
270 }
271 return dh;
272 }
273 #endif
274
275 /* static int load_CA(SSL_CTX *ctx, char *file);*/
276
277 #undef BUFSIZZ
278 #define BUFSIZZ 16*1024
279 static int bufsize = BUFSIZZ;
280 static int accept_socket = -1;
281
282 #define TEST_CERT "server.pem"
283 #ifndef OPENSSL_NO_TLSEXT
284 # define TEST_CERT2 "server2.pem"
285 #endif
286 #undef PROG
287 #define PROG s_server_main
288
289 extern int verify_depth, verify_return_error;
290
291 static char *cipher = NULL;
292 static int s_server_verify = SSL_VERIFY_NONE;
293 static int s_server_session_id_context = 1; /* anything will do */
294 static const char *s_cert_file = TEST_CERT, *s_key_file = NULL;
295 #ifndef OPENSSL_NO_TLSEXT
296 static const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL;
297 #endif
298 static char *s_dcert_file = NULL, *s_dkey_file = NULL;
299 #ifdef FIONBIO
300 static int s_nbio = 0;
301 #endif
302 static int s_nbio_test = 0;
303 int s_crlf = 0;
304 static SSL_CTX *ctx = NULL;
305 #ifndef OPENSSL_NO_TLSEXT
306 static SSL_CTX *ctx2 = NULL;
307 #endif
308 static int www = 0;
309
310 static BIO *bio_s_out = NULL;
311 static int s_debug = 0;
312 #ifndef OPENSSL_NO_TLSEXT
313 static int s_tlsextdebug = 0;
314 static int s_tlsextstatus = 0;
315 static int cert_status_cb(SSL *s, void *arg);
316 #endif
317 static int s_msg = 0;
318 static int s_quiet = 0;
319
320 static char *keymatexportlabel = NULL;
321 static int keymatexportlen = 20;
322
323 static int hack = 0;
324 #ifndef OPENSSL_NO_ENGINE
325 static char *engine_id = NULL;
326 #endif
327 static const char *session_id_prefix = NULL;
328
329 static int enable_timeouts = 0;
330 static long socket_mtu;
331 #ifndef OPENSSL_NO_DTLS1
332 static int cert_chain = 0;
333 #endif
334
335 #ifndef OPENSSL_NO_PSK
336 static char *psk_identity = "Client_identity";
337 char *psk_key = NULL; /* by default PSK is not used */
338
psk_server_cb(SSL * ssl,const char * identity,unsigned char * psk,unsigned int max_psk_len)339 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
340 unsigned char *psk,
341 unsigned int max_psk_len)
342 {
343 unsigned int psk_len = 0;
344 int ret;
345 BIGNUM *bn = NULL;
346
347 if (s_debug)
348 BIO_printf(bio_s_out, "psk_server_cb\n");
349 if (!identity) {
350 BIO_printf(bio_err, "Error: client did not send PSK identity\n");
351 goto out_err;
352 }
353 if (s_debug)
354 BIO_printf(bio_s_out, "identity_len=%d identity=%s\n",
355 (int)strlen(identity), identity);
356
357 /* here we could lookup the given identity e.g. from a database */
358 if (strcmp(identity, psk_identity) != 0) {
359 BIO_printf(bio_s_out, "PSK error: client identity not found"
360 " (got '%s' expected '%s')\n", identity, psk_identity);
361 goto out_err;
362 }
363 if (s_debug)
364 BIO_printf(bio_s_out, "PSK client identity found\n");
365
366 /* convert the PSK key to binary */
367 ret = BN_hex2bn(&bn, psk_key);
368 if (!ret) {
369 BIO_printf(bio_err, "Could not convert PSK key '%s' to BIGNUM\n",
370 psk_key);
371 if (bn)
372 BN_free(bn);
373 return 0;
374 }
375 if (BN_num_bytes(bn) > (int)max_psk_len) {
376 BIO_printf(bio_err,
377 "psk buffer of callback is too small (%d) for key (%d)\n",
378 max_psk_len, BN_num_bytes(bn));
379 BN_free(bn);
380 return 0;
381 }
382
383 ret = BN_bn2bin(bn, psk);
384 BN_free(bn);
385
386 if (ret < 0)
387 goto out_err;
388 psk_len = (unsigned int)ret;
389
390 if (s_debug)
391 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
392 return psk_len;
393 out_err:
394 if (s_debug)
395 BIO_printf(bio_err, "Error in PSK server callback\n");
396 return 0;
397 }
398 #endif
399
400 #ifndef OPENSSL_NO_SRP
401 /* This is a context that we pass to callbacks */
402 typedef struct srpsrvparm_st {
403 char *login;
404 SRP_VBASE *vb;
405 SRP_user_pwd *user;
406 } srpsrvparm;
407
408 /*
409 * This callback pretends to require some asynchronous logic in order to
410 * obtain a verifier. When the callback is called for a new connection we
411 * return with a negative value. This will provoke the accept etc to return
412 * with an LOOKUP_X509. The main logic of the reinvokes the suspended call
413 * (which would normally occur after a worker has finished) and we set the
414 * user parameters.
415 */
ssl_srp_server_param_cb(SSL * s,int * ad,void * arg)416 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
417 {
418 srpsrvparm *p = (srpsrvparm *) arg;
419 if (p->login == NULL && p->user == NULL) {
420 p->login = SSL_get_srp_username(s);
421 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
422 return (-1);
423 }
424
425 if (p->user == NULL) {
426 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
427 return SSL3_AL_FATAL;
428 }
429 if (SSL_set_srp_server_param
430 (s, p->user->N, p->user->g, p->user->s, p->user->v,
431 p->user->info) < 0) {
432 *ad = SSL_AD_INTERNAL_ERROR;
433 return SSL3_AL_FATAL;
434 }
435 BIO_printf(bio_err,
436 "SRP parameters set: username = \"%s\" info=\"%s\" \n",
437 p->login, p->user->info);
438 /* need to check whether there are memory leaks */
439 p->user = NULL;
440 p->login = NULL;
441 return SSL_ERROR_NONE;
442 }
443
444 #endif
445
446 #ifdef MONOLITH
s_server_init(void)447 static void s_server_init(void)
448 {
449 accept_socket = -1;
450 cipher = NULL;
451 s_server_verify = SSL_VERIFY_NONE;
452 s_dcert_file = NULL;
453 s_dkey_file = NULL;
454 s_cert_file = TEST_CERT;
455 s_key_file = NULL;
456 # ifndef OPENSSL_NO_TLSEXT
457 s_cert_file2 = TEST_CERT2;
458 s_key_file2 = NULL;
459 ctx2 = NULL;
460 # endif
461 # ifdef FIONBIO
462 s_nbio = 0;
463 # endif
464 s_nbio_test = 0;
465 ctx = NULL;
466 www = 0;
467
468 bio_s_out = NULL;
469 s_debug = 0;
470 s_msg = 0;
471 s_quiet = 0;
472 hack = 0;
473 # ifndef OPENSSL_NO_ENGINE
474 engine_id = NULL;
475 # endif
476 }
477 #endif
478
sv_usage(void)479 static void sv_usage(void)
480 {
481 BIO_printf(bio_err, "usage: s_server [args ...]\n");
482 BIO_printf(bio_err, "\n");
483 BIO_printf(bio_err,
484 " -accept arg - port to accept on (default is %d)\n", PORT);
485 BIO_printf(bio_err, " -context arg - set session ID context\n");
486 BIO_printf(bio_err,
487 " -verify arg - turn on peer certificate verification\n");
488 BIO_printf(bio_err,
489 " -Verify arg - turn on peer certificate verification, must have a cert.\n");
490 BIO_printf(bio_err,
491 " -verify_return_error - return verification errors\n");
492 BIO_printf(bio_err, " -cert arg - certificate file to use\n");
493 BIO_printf(bio_err, " (default is %s)\n", TEST_CERT);
494 BIO_printf(bio_err,
495 " -crl_check - check the peer certificate has not been revoked by its CA.\n"
496 " The CRL(s) are appended to the certificate file\n");
497 BIO_printf(bio_err,
498 " -crl_check_all - check the peer certificate has not been revoked by its CA\n"
499 " or any other CRL in the CA chain. CRL(s) are appened to the\n"
500 " the certificate file.\n");
501 BIO_printf(bio_err,
502 " -certform arg - certificate format (PEM or DER) PEM default\n");
503 BIO_printf(bio_err,
504 " -key arg - Private Key file to use, in cert file if\n");
505 BIO_printf(bio_err, " not specified (default is %s)\n",
506 TEST_CERT);
507 BIO_printf(bio_err,
508 " -keyform arg - key format (PEM, DER or ENGINE) PEM default\n");
509 BIO_printf(bio_err,
510 " -pass arg - private key file pass phrase source\n");
511 BIO_printf(bio_err,
512 " -dcert arg - second certificate file to use (usually for DSA)\n");
513 BIO_printf(bio_err,
514 " -dcertform x - second certificate format (PEM or DER) PEM default\n");
515 BIO_printf(bio_err,
516 " -dkey arg - second private key file to use (usually for DSA)\n");
517 BIO_printf(bio_err,
518 " -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
519 BIO_printf(bio_err,
520 " -dpass arg - second private key file pass phrase source\n");
521 BIO_printf(bio_err,
522 " -dhparam arg - DH parameter file to use, in cert file if not specified\n");
523 BIO_printf(bio_err,
524 " or a default set of parameters is used\n");
525 #ifndef OPENSSL_NO_ECDH
526 BIO_printf(bio_err,
527 " -named_curve arg - Elliptic curve name to use for ephemeral ECDH keys.\n"
528 " Use \"openssl ecparam -list_curves\" for all names\n"
529 " (default is nistp256).\n");
530 #endif
531 #ifdef FIONBIO
532 BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n");
533 #endif
534 BIO_printf(bio_err,
535 " -nbio_test - test with the non-blocking test bio\n");
536 BIO_printf(bio_err,
537 " -crlf - convert LF from terminal into CRLF\n");
538 BIO_printf(bio_err, " -debug - Print more output\n");
539 BIO_printf(bio_err, " -msg - Show protocol messages\n");
540 BIO_printf(bio_err, " -state - Print the SSL states\n");
541 BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n");
542 BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n");
543 BIO_printf(bio_err,
544 " -no_alt_chains - only ever use the first certificate chain found\n");
545 BIO_printf(bio_err,
546 " -nocert - Don't use any certificates (Anon-DH)\n");
547 BIO_printf(bio_err,
548 " -cipher arg - play with 'openssl ciphers' to see what goes here\n");
549 BIO_printf(bio_err, " -serverpref - Use server's cipher preferences\n");
550 BIO_printf(bio_err, " -quiet - No server output\n");
551 BIO_printf(bio_err, " -no_tmp_rsa - Do not generate a tmp RSA key\n");
552 #ifndef OPENSSL_NO_PSK
553 BIO_printf(bio_err, " -psk_hint arg - PSK identity hint to use\n");
554 BIO_printf(bio_err, " -psk arg - PSK in hex (without 0x)\n");
555 # ifndef OPENSSL_NO_JPAKE
556 BIO_printf(bio_err, " -jpake arg - JPAKE secret to use\n");
557 # endif
558 #endif
559 #ifndef OPENSSL_NO_SRP
560 BIO_printf(bio_err, " -srpvfile file - The verifier file for SRP\n");
561 BIO_printf(bio_err,
562 " -srpuserseed string - A seed string for a default user salt.\n");
563 #endif
564 BIO_printf(bio_err, " -ssl2 - Just talk SSLv2\n");
565 #ifndef OPENSSL_NO_SSL3_METHOD
566 BIO_printf(bio_err, " -ssl3 - Just talk SSLv3\n");
567 #endif
568 BIO_printf(bio_err, " -tls1_2 - Just talk TLSv1.2\n");
569 BIO_printf(bio_err, " -tls1_1 - Just talk TLSv1.1\n");
570 BIO_printf(bio_err, " -tls1 - Just talk TLSv1\n");
571 BIO_printf(bio_err, " -dtls1 - Just talk DTLSv1\n");
572 BIO_printf(bio_err, " -timeout - Enable timeouts\n");
573 BIO_printf(bio_err, " -mtu - Set link layer MTU\n");
574 BIO_printf(bio_err, " -chain - Read a certificate chain\n");
575 BIO_printf(bio_err, " -no_ssl2 - Just disable SSLv2\n");
576 BIO_printf(bio_err, " -no_ssl3 - Just disable SSLv3\n");
577 BIO_printf(bio_err, " -no_tls1 - Just disable TLSv1\n");
578 BIO_printf(bio_err, " -no_tls1_1 - Just disable TLSv1.1\n");
579 BIO_printf(bio_err, " -no_tls1_2 - Just disable TLSv1.2\n");
580 #ifndef OPENSSL_NO_DH
581 BIO_printf(bio_err, " -no_dhe - Disable ephemeral DH\n");
582 #endif
583 #ifndef OPENSSL_NO_ECDH
584 BIO_printf(bio_err, " -no_ecdhe - Disable ephemeral ECDH\n");
585 #endif
586 BIO_printf(bio_err, " -bugs - Turn on SSL bug compatibility\n");
587 BIO_printf(bio_err,
588 " -hack - workaround for early Netscape code\n");
589 BIO_printf(bio_err,
590 " -www - Respond to a 'GET /' with a status page\n");
591 BIO_printf(bio_err,
592 " -WWW - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
593 BIO_printf(bio_err,
594 " -HTTP - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
595 BIO_printf(bio_err,
596 " with the assumption it contains a complete HTTP response.\n");
597 #ifndef OPENSSL_NO_ENGINE
598 BIO_printf(bio_err,
599 " -engine id - Initialise and use the specified engine\n");
600 #endif
601 BIO_printf(bio_err,
602 " -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
603 BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
604 LIST_SEPARATOR_CHAR);
605 #ifndef OPENSSL_NO_TLSEXT
606 BIO_printf(bio_err,
607 " -servername host - servername for HostName TLS extension\n");
608 BIO_printf(bio_err,
609 " -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
610 BIO_printf(bio_err,
611 " -cert2 arg - certificate file to use for servername\n");
612 BIO_printf(bio_err, " (default is %s)\n", TEST_CERT2);
613 BIO_printf(bio_err,
614 " -key2 arg - Private Key file to use for servername, in cert file if\n");
615 BIO_printf(bio_err, " not specified (default is %s)\n",
616 TEST_CERT2);
617 BIO_printf(bio_err,
618 " -tlsextdebug - hex dump of all TLS extensions received\n");
619 BIO_printf(bio_err,
620 " -no_ticket - disable use of RFC4507bis session tickets\n");
621 BIO_printf(bio_err,
622 " -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
623 # ifndef OPENSSL_NO_NEXTPROTONEG
624 BIO_printf(bio_err,
625 " -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
626 # endif
627 # ifndef OPENSSL_NO_SRTP
628 BIO_printf(bio_err,
629 " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
630 # endif
631 #endif
632 BIO_printf(bio_err,
633 " -keymatexport label - Export keying material using label\n");
634 BIO_printf(bio_err,
635 " -keymatexportlen len - Export len bytes of keying material (default 20)\n");
636 BIO_printf(bio_err,
637 " -status - respond to certificate status requests\n");
638 BIO_printf(bio_err,
639 " -status_verbose - enable status request verbose printout\n");
640 BIO_printf(bio_err,
641 " -status_timeout n - status request responder timeout\n");
642 BIO_printf(bio_err, " -status_url URL - status request fallback URL\n");
643 }
644
645 static int local_argc = 0;
646 static char **local_argv;
647
648 #ifdef CHARSET_EBCDIC
649 static int ebcdic_new(BIO *bi);
650 static int ebcdic_free(BIO *a);
651 static int ebcdic_read(BIO *b, char *out, int outl);
652 static int ebcdic_write(BIO *b, const char *in, int inl);
653 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
654 static int ebcdic_gets(BIO *bp, char *buf, int size);
655 static int ebcdic_puts(BIO *bp, const char *str);
656
657 # define BIO_TYPE_EBCDIC_FILTER (18|0x0200)
658 static BIO_METHOD methods_ebcdic = {
659 BIO_TYPE_EBCDIC_FILTER,
660 "EBCDIC/ASCII filter",
661 ebcdic_write,
662 ebcdic_read,
663 ebcdic_puts,
664 ebcdic_gets,
665 ebcdic_ctrl,
666 ebcdic_new,
667 ebcdic_free,
668 };
669
670 typedef struct {
671 size_t alloced;
672 char buff[1];
673 } EBCDIC_OUTBUFF;
674
BIO_f_ebcdic_filter()675 BIO_METHOD *BIO_f_ebcdic_filter()
676 {
677 return (&methods_ebcdic);
678 }
679
ebcdic_new(BIO * bi)680 static int ebcdic_new(BIO *bi)
681 {
682 EBCDIC_OUTBUFF *wbuf;
683
684 wbuf = (EBCDIC_OUTBUFF *) OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
685 if (!wbuf)
686 return 0;
687 wbuf->alloced = 1024;
688 wbuf->buff[0] = '\0';
689
690 bi->ptr = (char *)wbuf;
691 bi->init = 1;
692 bi->flags = 0;
693 return (1);
694 }
695
ebcdic_free(BIO * a)696 static int ebcdic_free(BIO *a)
697 {
698 if (a == NULL)
699 return (0);
700 if (a->ptr != NULL)
701 OPENSSL_free(a->ptr);
702 a->ptr = NULL;
703 a->init = 0;
704 a->flags = 0;
705 return (1);
706 }
707
ebcdic_read(BIO * b,char * out,int outl)708 static int ebcdic_read(BIO *b, char *out, int outl)
709 {
710 int ret = 0;
711
712 if (out == NULL || outl == 0)
713 return (0);
714 if (b->next_bio == NULL)
715 return (0);
716
717 ret = BIO_read(b->next_bio, out, outl);
718 if (ret > 0)
719 ascii2ebcdic(out, out, ret);
720 return (ret);
721 }
722
ebcdic_write(BIO * b,const char * in,int inl)723 static int ebcdic_write(BIO *b, const char *in, int inl)
724 {
725 EBCDIC_OUTBUFF *wbuf;
726 int ret = 0;
727 int num;
728 unsigned char n;
729
730 if ((in == NULL) || (inl <= 0))
731 return (0);
732 if (b->next_bio == NULL)
733 return (0);
734
735 wbuf = (EBCDIC_OUTBUFF *) b->ptr;
736
737 if (inl > (num = wbuf->alloced)) {
738 num = num + num; /* double the size */
739 if (num < inl)
740 num = inl;
741 wbuf =
742 (EBCDIC_OUTBUFF *) OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
743 if (!wbuf)
744 return 0;
745 OPENSSL_free(b->ptr);
746
747 wbuf->alloced = num;
748 wbuf->buff[0] = '\0';
749
750 b->ptr = (char *)wbuf;
751 }
752
753 ebcdic2ascii(wbuf->buff, in, inl);
754
755 ret = BIO_write(b->next_bio, wbuf->buff, inl);
756
757 return (ret);
758 }
759
ebcdic_ctrl(BIO * b,int cmd,long num,void * ptr)760 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
761 {
762 long ret;
763
764 if (b->next_bio == NULL)
765 return (0);
766 switch (cmd) {
767 case BIO_CTRL_DUP:
768 ret = 0L;
769 break;
770 default:
771 ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
772 break;
773 }
774 return (ret);
775 }
776
ebcdic_gets(BIO * bp,char * buf,int size)777 static int ebcdic_gets(BIO *bp, char *buf, int size)
778 {
779 int i, ret = 0;
780 if (bp->next_bio == NULL)
781 return (0);
782 /* return(BIO_gets(bp->next_bio,buf,size));*/
783 for (i = 0; i < size - 1; ++i) {
784 ret = ebcdic_read(bp, &buf[i], 1);
785 if (ret <= 0)
786 break;
787 else if (buf[i] == '\n') {
788 ++i;
789 break;
790 }
791 }
792 if (i < size)
793 buf[i] = '\0';
794 return (ret < 0 && i == 0) ? ret : i;
795 }
796
ebcdic_puts(BIO * bp,const char * str)797 static int ebcdic_puts(BIO *bp, const char *str)
798 {
799 if (bp->next_bio == NULL)
800 return (0);
801 return ebcdic_write(bp, str, strlen(str));
802 }
803 #endif
804
805 #ifndef OPENSSL_NO_TLSEXT
806
807 /* This is a context that we pass to callbacks */
808 typedef struct tlsextctx_st {
809 char *servername;
810 BIO *biodebug;
811 int extension_error;
812 } tlsextctx;
813
ssl_servername_cb(SSL * s,int * ad,void * arg)814 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
815 {
816 tlsextctx *p = (tlsextctx *) arg;
817 const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
818 if (servername && p->biodebug)
819 BIO_printf(p->biodebug, "Hostname in TLS extension: \"%s\"\n",
820 servername);
821
822 if (!p->servername)
823 return SSL_TLSEXT_ERR_NOACK;
824
825 if (servername) {
826 if (strcasecmp(servername, p->servername))
827 return p->extension_error;
828 if (ctx2) {
829 BIO_printf(p->biodebug, "Switching server context.\n");
830 SSL_set_SSL_CTX(s, ctx2);
831 }
832 }
833 return SSL_TLSEXT_ERR_OK;
834 }
835
836 /* Structure passed to cert status callback */
837
838 typedef struct tlsextstatusctx_st {
839 /* Default responder to use */
840 char *host, *path, *port;
841 int use_ssl;
842 int timeout;
843 BIO *err;
844 int verbose;
845 } tlsextstatusctx;
846
847 static tlsextstatusctx tlscstatp = { NULL, NULL, NULL, 0, -1, NULL, 0 };
848
849 /*
850 * Certificate Status callback. This is called when a client includes a
851 * certificate status request extension. This is a simplified version. It
852 * examines certificates each time and makes one OCSP responder query for
853 * each request. A full version would store details such as the OCSP
854 * certificate IDs and minimise the number of OCSP responses by caching them
855 * until they were considered "expired".
856 */
857
cert_status_cb(SSL * s,void * arg)858 static int cert_status_cb(SSL *s, void *arg)
859 {
860 tlsextstatusctx *srctx = arg;
861 BIO *err = srctx->err;
862 char *host, *port, *path;
863 int use_ssl;
864 unsigned char *rspder = NULL;
865 int rspderlen;
866 STACK_OF(OPENSSL_STRING) *aia = NULL;
867 X509 *x = NULL;
868 X509_STORE_CTX inctx;
869 X509_OBJECT obj;
870 OCSP_REQUEST *req = NULL;
871 OCSP_RESPONSE *resp = NULL;
872 OCSP_CERTID *id = NULL;
873 STACK_OF(X509_EXTENSION) *exts;
874 int ret = SSL_TLSEXT_ERR_NOACK;
875 int i;
876 # if 0
877 STACK_OF(OCSP_RESPID) *ids;
878 SSL_get_tlsext_status_ids(s, &ids);
879 BIO_printf(err, "cert_status: received %d ids\n",
880 sk_OCSP_RESPID_num(ids));
881 # endif
882 if (srctx->verbose)
883 BIO_puts(err, "cert_status: callback called\n");
884 /* Build up OCSP query from server certificate */
885 x = SSL_get_certificate(s);
886 aia = X509_get1_ocsp(x);
887 if (aia) {
888 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
889 &host, &port, &path, &use_ssl)) {
890 BIO_puts(err, "cert_status: can't parse AIA URL\n");
891 goto err;
892 }
893 if (srctx->verbose)
894 BIO_printf(err, "cert_status: AIA URL: %s\n",
895 sk_OPENSSL_STRING_value(aia, 0));
896 } else {
897 if (!srctx->host) {
898 BIO_puts(srctx->err,
899 "cert_status: no AIA and no default responder URL\n");
900 goto done;
901 }
902 host = srctx->host;
903 path = srctx->path;
904 port = srctx->port;
905 use_ssl = srctx->use_ssl;
906 }
907
908 if (!X509_STORE_CTX_init(&inctx,
909 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
910 NULL, NULL))
911 goto err;
912 if (X509_STORE_get_by_subject(&inctx, X509_LU_X509,
913 X509_get_issuer_name(x), &obj) <= 0) {
914 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
915 X509_STORE_CTX_cleanup(&inctx);
916 goto done;
917 }
918 req = OCSP_REQUEST_new();
919 if (!req)
920 goto err;
921 id = OCSP_cert_to_id(NULL, x, obj.data.x509);
922 X509_free(obj.data.x509);
923 X509_STORE_CTX_cleanup(&inctx);
924 if (!id)
925 goto err;
926 if (!OCSP_request_add0_id(req, id))
927 goto err;
928 id = NULL;
929 /* Add any extensions to the request */
930 SSL_get_tlsext_status_exts(s, &exts);
931 for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
932 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
933 if (!OCSP_REQUEST_add_ext(req, ext, -1))
934 goto err;
935 }
936 resp = process_responder(err, req, host, path, port, use_ssl, NULL,
937 srctx->timeout);
938 if (!resp) {
939 BIO_puts(err, "cert_status: error querying responder\n");
940 goto done;
941 }
942 rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
943 if (rspderlen <= 0)
944 goto err;
945 SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
946 if (srctx->verbose) {
947 BIO_puts(err, "cert_status: ocsp response sent:\n");
948 OCSP_RESPONSE_print(err, resp, 2);
949 }
950 ret = SSL_TLSEXT_ERR_OK;
951 done:
952 if (ret != SSL_TLSEXT_ERR_OK)
953 ERR_print_errors(err);
954 if (aia) {
955 OPENSSL_free(host);
956 OPENSSL_free(path);
957 OPENSSL_free(port);
958 X509_email_free(aia);
959 }
960 if (id)
961 OCSP_CERTID_free(id);
962 if (req)
963 OCSP_REQUEST_free(req);
964 if (resp)
965 OCSP_RESPONSE_free(resp);
966 return ret;
967 err:
968 ret = SSL_TLSEXT_ERR_ALERT_FATAL;
969 goto done;
970 }
971
972 # ifndef OPENSSL_NO_NEXTPROTONEG
973 /* This is the context that we pass to next_proto_cb */
974 typedef struct tlsextnextprotoctx_st {
975 unsigned char *data;
976 unsigned int len;
977 } tlsextnextprotoctx;
978
next_proto_cb(SSL * s,const unsigned char ** data,unsigned int * len,void * arg)979 static int next_proto_cb(SSL *s, const unsigned char **data,
980 unsigned int *len, void *arg)
981 {
982 tlsextnextprotoctx *next_proto = arg;
983
984 *data = next_proto->data;
985 *len = next_proto->len;
986
987 return SSL_TLSEXT_ERR_OK;
988 }
989 # endif /* ndef OPENSSL_NO_NEXTPROTONEG */
990
991 #endif
992
993 int MAIN(int, char **);
994
995 #ifndef OPENSSL_NO_JPAKE
996 static char *jpake_secret = NULL;
997 #endif
998 #ifndef OPENSSL_NO_SRP
999 static srpsrvparm srp_callback_parm;
1000 #endif
1001 #ifndef OPENSSL_NO_SRTP
1002 static char *srtp_profiles = NULL;
1003 #endif
1004
MAIN(int argc,char * argv[])1005 int MAIN(int argc, char *argv[])
1006 {
1007 X509_VERIFY_PARAM *vpm = NULL;
1008 int badarg = 0;
1009 short port = PORT;
1010 char *CApath = NULL, *CAfile = NULL;
1011 unsigned char *context = NULL;
1012 char *dhfile = NULL;
1013 #ifndef OPENSSL_NO_ECDH
1014 char *named_curve = NULL;
1015 #endif
1016 int badop = 0, bugs = 0;
1017 int ret = 1;
1018 int off = 0;
1019 int no_tmp_rsa = 0, no_dhe = 0, nocert = 0;
1020 #ifndef OPENSSL_NO_ECDH
1021 int no_ecdhe = 0;
1022 #endif
1023 int state = 0;
1024 const SSL_METHOD *meth = NULL;
1025 int socket_type = SOCK_STREAM;
1026 ENGINE *e = NULL;
1027 char *inrand = NULL;
1028 int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
1029 char *passarg = NULL, *pass = NULL;
1030 char *dpassarg = NULL, *dpass = NULL;
1031 int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
1032 X509 *s_cert = NULL, *s_dcert = NULL;
1033 EVP_PKEY *s_key = NULL, *s_dkey = NULL;
1034 int no_cache = 0;
1035 #ifndef OPENSSL_NO_TLSEXT
1036 EVP_PKEY *s_key2 = NULL;
1037 X509 *s_cert2 = NULL;
1038 tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING };
1039 # ifndef OPENSSL_NO_NEXTPROTONEG
1040 const char *next_proto_neg_in = NULL;
1041 tlsextnextprotoctx next_proto;
1042 # endif
1043 #endif
1044 #ifndef OPENSSL_NO_PSK
1045 /* by default do not send a PSK identity hint */
1046 static char *psk_identity_hint = NULL;
1047 #endif
1048 #ifndef OPENSSL_NO_SRP
1049 char *srpuserseed = NULL;
1050 char *srp_verifier_file = NULL;
1051 #endif
1052 meth = SSLv23_server_method();
1053
1054 local_argc = argc;
1055 local_argv = argv;
1056
1057 apps_startup();
1058 #ifdef MONOLITH
1059 s_server_init();
1060 #endif
1061
1062 if (bio_err == NULL)
1063 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
1064
1065 if (!load_config(bio_err, NULL))
1066 goto end;
1067
1068 verify_depth = 0;
1069 #ifdef FIONBIO
1070 s_nbio = 0;
1071 #endif
1072 s_nbio_test = 0;
1073
1074 argc--;
1075 argv++;
1076
1077 while (argc >= 1) {
1078 if ((strcmp(*argv, "-port") == 0) || (strcmp(*argv, "-accept") == 0)) {
1079 if (--argc < 1)
1080 goto bad;
1081 if (!extract_port(*(++argv), &port))
1082 goto bad;
1083 } else if (strcmp(*argv, "-verify") == 0) {
1084 s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
1085 if (--argc < 1)
1086 goto bad;
1087 verify_depth = atoi(*(++argv));
1088 BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
1089 } else if (strcmp(*argv, "-Verify") == 0) {
1090 s_server_verify =
1091 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
1092 SSL_VERIFY_CLIENT_ONCE;
1093 if (--argc < 1)
1094 goto bad;
1095 verify_depth = atoi(*(++argv));
1096 BIO_printf(bio_err,
1097 "verify depth is %d, must return a certificate\n",
1098 verify_depth);
1099 } else if (strcmp(*argv, "-context") == 0) {
1100 if (--argc < 1)
1101 goto bad;
1102 context = (unsigned char *)*(++argv);
1103 } else if (strcmp(*argv, "-cert") == 0) {
1104 if (--argc < 1)
1105 goto bad;
1106 s_cert_file = *(++argv);
1107 } else if (strcmp(*argv, "-certform") == 0) {
1108 if (--argc < 1)
1109 goto bad;
1110 s_cert_format = str2fmt(*(++argv));
1111 } else if (strcmp(*argv, "-key") == 0) {
1112 if (--argc < 1)
1113 goto bad;
1114 s_key_file = *(++argv);
1115 } else if (strcmp(*argv, "-keyform") == 0) {
1116 if (--argc < 1)
1117 goto bad;
1118 s_key_format = str2fmt(*(++argv));
1119 } else if (strcmp(*argv, "-pass") == 0) {
1120 if (--argc < 1)
1121 goto bad;
1122 passarg = *(++argv);
1123 } else if (strcmp(*argv, "-dhparam") == 0) {
1124 if (--argc < 1)
1125 goto bad;
1126 dhfile = *(++argv);
1127 }
1128 #ifndef OPENSSL_NO_ECDH
1129 else if (strcmp(*argv, "-named_curve") == 0) {
1130 if (--argc < 1)
1131 goto bad;
1132 named_curve = *(++argv);
1133 }
1134 #endif
1135 else if (strcmp(*argv, "-dcertform") == 0) {
1136 if (--argc < 1)
1137 goto bad;
1138 s_dcert_format = str2fmt(*(++argv));
1139 } else if (strcmp(*argv, "-dcert") == 0) {
1140 if (--argc < 1)
1141 goto bad;
1142 s_dcert_file = *(++argv);
1143 } else if (strcmp(*argv, "-dkeyform") == 0) {
1144 if (--argc < 1)
1145 goto bad;
1146 s_dkey_format = str2fmt(*(++argv));
1147 } else if (strcmp(*argv, "-dpass") == 0) {
1148 if (--argc < 1)
1149 goto bad;
1150 dpassarg = *(++argv);
1151 } else if (strcmp(*argv, "-dkey") == 0) {
1152 if (--argc < 1)
1153 goto bad;
1154 s_dkey_file = *(++argv);
1155 } else if (strcmp(*argv, "-nocert") == 0) {
1156 nocert = 1;
1157 } else if (strcmp(*argv, "-CApath") == 0) {
1158 if (--argc < 1)
1159 goto bad;
1160 CApath = *(++argv);
1161 } else if (strcmp(*argv, "-no_cache") == 0)
1162 no_cache = 1;
1163 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
1164 if (badarg)
1165 goto bad;
1166 continue;
1167 } else if (strcmp(*argv, "-verify_return_error") == 0)
1168 verify_return_error = 1;
1169 else if (strcmp(*argv, "-serverpref") == 0) {
1170 off |= SSL_OP_CIPHER_SERVER_PREFERENCE;
1171 } else if (strcmp(*argv, "-legacy_renegotiation") == 0)
1172 off |= SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
1173 else if (strcmp(*argv, "-cipher") == 0) {
1174 if (--argc < 1)
1175 goto bad;
1176 cipher = *(++argv);
1177 } else if (strcmp(*argv, "-CAfile") == 0) {
1178 if (--argc < 1)
1179 goto bad;
1180 CAfile = *(++argv);
1181 }
1182 #ifdef FIONBIO
1183 else if (strcmp(*argv, "-nbio") == 0) {
1184 s_nbio = 1;
1185 }
1186 #endif
1187 else if (strcmp(*argv, "-nbio_test") == 0) {
1188 #ifdef FIONBIO
1189 s_nbio = 1;
1190 #endif
1191 s_nbio_test = 1;
1192 } else if (strcmp(*argv, "-debug") == 0) {
1193 s_debug = 1;
1194 }
1195 #ifndef OPENSSL_NO_TLSEXT
1196 else if (strcmp(*argv, "-tlsextdebug") == 0)
1197 s_tlsextdebug = 1;
1198 else if (strcmp(*argv, "-status") == 0)
1199 s_tlsextstatus = 1;
1200 else if (strcmp(*argv, "-status_verbose") == 0) {
1201 s_tlsextstatus = 1;
1202 tlscstatp.verbose = 1;
1203 } else if (!strcmp(*argv, "-status_timeout")) {
1204 s_tlsextstatus = 1;
1205 if (--argc < 1)
1206 goto bad;
1207 tlscstatp.timeout = atoi(*(++argv));
1208 } else if (!strcmp(*argv, "-status_url")) {
1209 s_tlsextstatus = 1;
1210 if (--argc < 1)
1211 goto bad;
1212 if (!OCSP_parse_url(*(++argv),
1213 &tlscstatp.host,
1214 &tlscstatp.port,
1215 &tlscstatp.path, &tlscstatp.use_ssl)) {
1216 BIO_printf(bio_err, "Error parsing URL\n");
1217 goto bad;
1218 }
1219 }
1220 #endif
1221 else if (strcmp(*argv, "-msg") == 0) {
1222 s_msg = 1;
1223 } else if (strcmp(*argv, "-hack") == 0) {
1224 hack = 1;
1225 } else if (strcmp(*argv, "-state") == 0) {
1226 state = 1;
1227 } else if (strcmp(*argv, "-crlf") == 0) {
1228 s_crlf = 1;
1229 } else if (strcmp(*argv, "-quiet") == 0) {
1230 s_quiet = 1;
1231 } else if (strcmp(*argv, "-bugs") == 0) {
1232 bugs = 1;
1233 } else if (strcmp(*argv, "-no_tmp_rsa") == 0) {
1234 no_tmp_rsa = 1;
1235 } else if (strcmp(*argv, "-no_dhe") == 0) {
1236 no_dhe = 1;
1237 }
1238 #ifndef OPENSSL_NO_ECDH
1239 else if (strcmp(*argv, "-no_ecdhe") == 0) {
1240 no_ecdhe = 1;
1241 }
1242 #endif
1243 #ifndef OPENSSL_NO_PSK
1244 else if (strcmp(*argv, "-psk_hint") == 0) {
1245 if (--argc < 1)
1246 goto bad;
1247 psk_identity_hint = *(++argv);
1248 } else if (strcmp(*argv, "-psk") == 0) {
1249 size_t i;
1250
1251 if (--argc < 1)
1252 goto bad;
1253 psk_key = *(++argv);
1254 for (i = 0; i < strlen(psk_key); i++) {
1255 if (isxdigit((unsigned char)psk_key[i]))
1256 continue;
1257 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv);
1258 goto bad;
1259 }
1260 }
1261 #endif
1262 #ifndef OPENSSL_NO_SRP
1263 else if (strcmp(*argv, "-srpvfile") == 0) {
1264 if (--argc < 1)
1265 goto bad;
1266 srp_verifier_file = *(++argv);
1267 meth = TLSv1_server_method();
1268 } else if (strcmp(*argv, "-srpuserseed") == 0) {
1269 if (--argc < 1)
1270 goto bad;
1271 srpuserseed = *(++argv);
1272 meth = TLSv1_server_method();
1273 }
1274 #endif
1275 else if (strcmp(*argv, "-www") == 0) {
1276 www = 1;
1277 } else if (strcmp(*argv, "-WWW") == 0) {
1278 www = 2;
1279 } else if (strcmp(*argv, "-HTTP") == 0) {
1280 www = 3;
1281 } else if (strcmp(*argv, "-no_ssl2") == 0) {
1282 off |= SSL_OP_NO_SSLv2;
1283 } else if (strcmp(*argv, "-no_ssl3") == 0) {
1284 off |= SSL_OP_NO_SSLv3;
1285 } else if (strcmp(*argv, "-no_tls1") == 0) {
1286 off |= SSL_OP_NO_TLSv1;
1287 } else if (strcmp(*argv, "-no_tls1_1") == 0) {
1288 off |= SSL_OP_NO_TLSv1_1;
1289 } else if (strcmp(*argv, "-no_tls1_2") == 0) {
1290 off |= SSL_OP_NO_TLSv1_2;
1291 } else if (strcmp(*argv, "-no_comp") == 0) {
1292 off |= SSL_OP_NO_COMPRESSION;
1293 }
1294 #ifndef OPENSSL_NO_TLSEXT
1295 else if (strcmp(*argv, "-no_ticket") == 0) {
1296 off |= SSL_OP_NO_TICKET;
1297 }
1298 #endif
1299 #ifndef OPENSSL_NO_SSL2
1300 else if (strcmp(*argv, "-ssl2") == 0) {
1301 meth = SSLv2_server_method();
1302 }
1303 #endif
1304 #ifndef OPENSSL_NO_SSL3_METHOD
1305 else if (strcmp(*argv, "-ssl3") == 0) {
1306 meth = SSLv3_server_method();
1307 }
1308 #endif
1309 #ifndef OPENSSL_NO_TLS1
1310 else if (strcmp(*argv, "-tls1") == 0) {
1311 meth = TLSv1_server_method();
1312 } else if (strcmp(*argv, "-tls1_1") == 0) {
1313 meth = TLSv1_1_server_method();
1314 } else if (strcmp(*argv, "-tls1_2") == 0) {
1315 meth = TLSv1_2_server_method();
1316 }
1317 #endif
1318 #ifndef OPENSSL_NO_DTLS1
1319 else if (strcmp(*argv, "-dtls1") == 0) {
1320 meth = DTLSv1_server_method();
1321 socket_type = SOCK_DGRAM;
1322 } else if (strcmp(*argv, "-timeout") == 0)
1323 enable_timeouts = 1;
1324 else if (strcmp(*argv, "-mtu") == 0) {
1325 if (--argc < 1)
1326 goto bad;
1327 socket_mtu = atol(*(++argv));
1328 } else if (strcmp(*argv, "-chain") == 0)
1329 cert_chain = 1;
1330 #endif
1331 else if (strcmp(*argv, "-id_prefix") == 0) {
1332 if (--argc < 1)
1333 goto bad;
1334 session_id_prefix = *(++argv);
1335 }
1336 #ifndef OPENSSL_NO_ENGINE
1337 else if (strcmp(*argv, "-engine") == 0) {
1338 if (--argc < 1)
1339 goto bad;
1340 engine_id = *(++argv);
1341 }
1342 #endif
1343 else if (strcmp(*argv, "-rand") == 0) {
1344 if (--argc < 1)
1345 goto bad;
1346 inrand = *(++argv);
1347 }
1348 #ifndef OPENSSL_NO_TLSEXT
1349 else if (strcmp(*argv, "-servername") == 0) {
1350 if (--argc < 1)
1351 goto bad;
1352 tlsextcbp.servername = *(++argv);
1353 } else if (strcmp(*argv, "-servername_fatal") == 0) {
1354 tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL;
1355 } else if (strcmp(*argv, "-cert2") == 0) {
1356 if (--argc < 1)
1357 goto bad;
1358 s_cert_file2 = *(++argv);
1359 } else if (strcmp(*argv, "-key2") == 0) {
1360 if (--argc < 1)
1361 goto bad;
1362 s_key_file2 = *(++argv);
1363 }
1364 # ifndef OPENSSL_NO_NEXTPROTONEG
1365 else if (strcmp(*argv, "-nextprotoneg") == 0) {
1366 if (--argc < 1)
1367 goto bad;
1368 next_proto_neg_in = *(++argv);
1369 }
1370 # endif
1371 #endif
1372 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1373 else if (strcmp(*argv, "-jpake") == 0) {
1374 if (--argc < 1)
1375 goto bad;
1376 jpake_secret = *(++argv);
1377 }
1378 #endif
1379 #ifndef OPENSSL_NO_SRTP
1380 else if (strcmp(*argv, "-use_srtp") == 0) {
1381 if (--argc < 1)
1382 goto bad;
1383 srtp_profiles = *(++argv);
1384 }
1385 #endif
1386 else if (strcmp(*argv, "-keymatexport") == 0) {
1387 if (--argc < 1)
1388 goto bad;
1389 keymatexportlabel = *(++argv);
1390 } else if (strcmp(*argv, "-keymatexportlen") == 0) {
1391 if (--argc < 1)
1392 goto bad;
1393 keymatexportlen = atoi(*(++argv));
1394 if (keymatexportlen == 0)
1395 goto bad;
1396 } else {
1397 BIO_printf(bio_err, "unknown option %s\n", *argv);
1398 badop = 1;
1399 break;
1400 }
1401 argc--;
1402 argv++;
1403 }
1404 if (badop) {
1405 bad:
1406 sv_usage();
1407 goto end;
1408 }
1409 #ifndef OPENSSL_NO_DTLS1
1410 if (www && socket_type == SOCK_DGRAM) {
1411 BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n");
1412 goto end;
1413 }
1414 #endif
1415
1416 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1417 if (jpake_secret) {
1418 if (psk_key) {
1419 BIO_printf(bio_err, "Can't use JPAKE and PSK together\n");
1420 goto end;
1421 }
1422 psk_identity = "JPAKE";
1423 if (cipher) {
1424 BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1425 goto end;
1426 }
1427 cipher = "PSK";
1428 }
1429 #endif
1430
1431 SSL_load_error_strings();
1432 OpenSSL_add_ssl_algorithms();
1433
1434 #ifndef OPENSSL_NO_ENGINE
1435 e = setup_engine(bio_err, engine_id, 1);
1436 #endif
1437
1438 if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass)) {
1439 BIO_printf(bio_err, "Error getting password\n");
1440 goto end;
1441 }
1442
1443 if (s_key_file == NULL)
1444 s_key_file = s_cert_file;
1445 #ifndef OPENSSL_NO_TLSEXT
1446 if (s_key_file2 == NULL)
1447 s_key_file2 = s_cert_file2;
1448 #endif
1449
1450 if (nocert == 0) {
1451 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1452 "server certificate private key file");
1453 if (!s_key) {
1454 ERR_print_errors(bio_err);
1455 goto end;
1456 }
1457
1458 s_cert = load_cert(bio_err, s_cert_file, s_cert_format,
1459 NULL, e, "server certificate file");
1460
1461 if (!s_cert) {
1462 ERR_print_errors(bio_err);
1463 goto end;
1464 }
1465 #ifndef OPENSSL_NO_TLSEXT
1466 if (tlsextcbp.servername) {
1467 s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1468 "second server certificate private key file");
1469 if (!s_key2) {
1470 ERR_print_errors(bio_err);
1471 goto end;
1472 }
1473
1474 s_cert2 = load_cert(bio_err, s_cert_file2, s_cert_format,
1475 NULL, e, "second server certificate file");
1476
1477 if (!s_cert2) {
1478 ERR_print_errors(bio_err);
1479 goto end;
1480 }
1481 }
1482 #endif
1483 }
1484 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1485 if (next_proto_neg_in) {
1486 unsigned short len;
1487 next_proto.data = next_protos_parse(&len, next_proto_neg_in);
1488 if (next_proto.data == NULL)
1489 goto end;
1490 next_proto.len = len;
1491 } else {
1492 next_proto.data = NULL;
1493 }
1494 #endif
1495
1496 if (s_dcert_file) {
1497
1498 if (s_dkey_file == NULL)
1499 s_dkey_file = s_dcert_file;
1500
1501 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1502 0, dpass, e, "second certificate private key file");
1503 if (!s_dkey) {
1504 ERR_print_errors(bio_err);
1505 goto end;
1506 }
1507
1508 s_dcert = load_cert(bio_err, s_dcert_file, s_dcert_format,
1509 NULL, e, "second server certificate file");
1510
1511 if (!s_dcert) {
1512 ERR_print_errors(bio_err);
1513 goto end;
1514 }
1515
1516 }
1517
1518 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1519 && !RAND_status()) {
1520 BIO_printf(bio_err,
1521 "warning, not much extra random data, consider using the -rand option\n");
1522 }
1523 if (inrand != NULL)
1524 BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
1525 app_RAND_load_files(inrand));
1526
1527 if (bio_s_out == NULL) {
1528 if (s_quiet && !s_debug && !s_msg) {
1529 bio_s_out = BIO_new(BIO_s_null());
1530 } else {
1531 if (bio_s_out == NULL)
1532 bio_s_out = BIO_new_fp(stdout, BIO_NOCLOSE);
1533 }
1534 }
1535 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1536 if (nocert)
1537 #endif
1538 {
1539 s_cert_file = NULL;
1540 s_key_file = NULL;
1541 s_dcert_file = NULL;
1542 s_dkey_file = NULL;
1543 #ifndef OPENSSL_NO_TLSEXT
1544 s_cert_file2 = NULL;
1545 s_key_file2 = NULL;
1546 #endif
1547 }
1548
1549 ctx = SSL_CTX_new(meth);
1550 if (ctx == NULL) {
1551 ERR_print_errors(bio_err);
1552 goto end;
1553 }
1554 if (session_id_prefix) {
1555 if (strlen(session_id_prefix) >= 32)
1556 BIO_printf(bio_err,
1557 "warning: id_prefix is too long, only one new session will be possible\n");
1558 else if (strlen(session_id_prefix) >= 16)
1559 BIO_printf(bio_err,
1560 "warning: id_prefix is too long if you use SSLv2\n");
1561 if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) {
1562 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1563 ERR_print_errors(bio_err);
1564 goto end;
1565 }
1566 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1567 }
1568 SSL_CTX_set_quiet_shutdown(ctx, 1);
1569 if (bugs)
1570 SSL_CTX_set_options(ctx, SSL_OP_ALL);
1571 if (hack)
1572 SSL_CTX_set_options(ctx, SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1573 SSL_CTX_set_options(ctx, off);
1574
1575 if (state)
1576 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1577 if (no_cache)
1578 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1579 else
1580 SSL_CTX_sess_set_cache_size(ctx, 128);
1581
1582 #ifndef OPENSSL_NO_SRTP
1583 if (srtp_profiles != NULL)
1584 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1585 #endif
1586
1587 #if 0
1588 if (cipher == NULL)
1589 cipher = getenv("SSL_CIPHER");
1590 #endif
1591
1592 #if 0
1593 if (s_cert_file == NULL) {
1594 BIO_printf(bio_err,
1595 "You must specify a certificate file for the server to use\n");
1596 goto end;
1597 }
1598 #endif
1599
1600 if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) ||
1601 (!SSL_CTX_set_default_verify_paths(ctx))) {
1602 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1603 ERR_print_errors(bio_err);
1604 /* goto end; */
1605 }
1606 if (vpm)
1607 SSL_CTX_set1_param(ctx, vpm);
1608
1609 #ifndef OPENSSL_NO_TLSEXT
1610 if (s_cert2) {
1611 ctx2 = SSL_CTX_new(meth);
1612 if (ctx2 == NULL) {
1613 ERR_print_errors(bio_err);
1614 goto end;
1615 }
1616 }
1617
1618 if (ctx2) {
1619 BIO_printf(bio_s_out, "Setting secondary ctx parameters\n");
1620
1621 if (session_id_prefix) {
1622 if (strlen(session_id_prefix) >= 32)
1623 BIO_printf(bio_err,
1624 "warning: id_prefix is too long, only one new session will be possible\n");
1625 else if (strlen(session_id_prefix) >= 16)
1626 BIO_printf(bio_err,
1627 "warning: id_prefix is too long if you use SSLv2\n");
1628 if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) {
1629 BIO_printf(bio_err, "error setting 'id_prefix'\n");
1630 ERR_print_errors(bio_err);
1631 goto end;
1632 }
1633 BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix);
1634 }
1635 SSL_CTX_set_quiet_shutdown(ctx2, 1);
1636 if (bugs)
1637 SSL_CTX_set_options(ctx2, SSL_OP_ALL);
1638 if (hack)
1639 SSL_CTX_set_options(ctx2, SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1640 SSL_CTX_set_options(ctx2, off);
1641
1642 if (state)
1643 SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
1644
1645 if (no_cache)
1646 SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF);
1647 else
1648 SSL_CTX_sess_set_cache_size(ctx2, 128);
1649
1650 if ((!SSL_CTX_load_verify_locations(ctx2, CAfile, CApath)) ||
1651 (!SSL_CTX_set_default_verify_paths(ctx2))) {
1652 ERR_print_errors(bio_err);
1653 }
1654 if (vpm)
1655 SSL_CTX_set1_param(ctx2, vpm);
1656 }
1657 # ifndef OPENSSL_NO_NEXTPROTONEG
1658 if (next_proto.data)
1659 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb,
1660 &next_proto);
1661 # endif
1662 #endif
1663
1664 #ifndef OPENSSL_NO_DH
1665 if (!no_dhe) {
1666 DH *dh = NULL;
1667
1668 if (dhfile)
1669 dh = load_dh_param(dhfile);
1670 else if (s_cert_file)
1671 dh = load_dh_param(s_cert_file);
1672
1673 if (dh != NULL) {
1674 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1675 } else {
1676 BIO_printf(bio_s_out, "Using default temp DH parameters\n");
1677 dh = get_dh2048();
1678 if (dh == NULL) {
1679 ERR_print_errors(bio_err);
1680 goto end;
1681 }
1682 }
1683 (void)BIO_flush(bio_s_out);
1684
1685 SSL_CTX_set_tmp_dh(ctx, dh);
1686 # ifndef OPENSSL_NO_TLSEXT
1687 if (ctx2) {
1688 if (!dhfile) {
1689 DH *dh2 = load_dh_param(s_cert_file2);
1690 if (dh2 != NULL) {
1691 BIO_printf(bio_s_out, "Setting temp DH parameters\n");
1692 (void)BIO_flush(bio_s_out);
1693
1694 DH_free(dh);
1695 dh = dh2;
1696 }
1697 }
1698 SSL_CTX_set_tmp_dh(ctx2, dh);
1699 }
1700 # endif
1701 DH_free(dh);
1702 }
1703 #endif
1704
1705 #ifndef OPENSSL_NO_ECDH
1706 if (!no_ecdhe) {
1707 EC_KEY *ecdh = NULL;
1708
1709 if (named_curve) {
1710 int nid = OBJ_sn2nid(named_curve);
1711
1712 if (nid == 0) {
1713 BIO_printf(bio_err, "unknown curve name (%s)\n", named_curve);
1714 goto end;
1715 }
1716 ecdh = EC_KEY_new_by_curve_name(nid);
1717 if (ecdh == NULL) {
1718 BIO_printf(bio_err, "unable to create curve (%s)\n",
1719 named_curve);
1720 goto end;
1721 }
1722 }
1723
1724 if (ecdh != NULL) {
1725 BIO_printf(bio_s_out, "Setting temp ECDH parameters\n");
1726 } else {
1727 BIO_printf(bio_s_out, "Using default temp ECDH parameters\n");
1728 ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
1729 if (ecdh == NULL) {
1730 BIO_printf(bio_err, "unable to create curve (nistp256)\n");
1731 goto end;
1732 }
1733 }
1734 (void)BIO_flush(bio_s_out);
1735
1736 SSL_CTX_set_tmp_ecdh(ctx, ecdh);
1737 # ifndef OPENSSL_NO_TLSEXT
1738 if (ctx2)
1739 SSL_CTX_set_tmp_ecdh(ctx2, ecdh);
1740 # endif
1741 EC_KEY_free(ecdh);
1742 }
1743 #endif
1744
1745 if (!set_cert_key_stuff(ctx, s_cert, s_key))
1746 goto end;
1747 #ifndef OPENSSL_NO_TLSEXT
1748 if (ctx2 && !set_cert_key_stuff(ctx2, s_cert2, s_key2))
1749 goto end;
1750 #endif
1751 if (s_dcert != NULL) {
1752 if (!set_cert_key_stuff(ctx, s_dcert, s_dkey))
1753 goto end;
1754 }
1755 #ifndef OPENSSL_NO_RSA
1756 # if 1
1757 if (!no_tmp_rsa) {
1758 SSL_CTX_set_tmp_rsa_callback(ctx, tmp_rsa_cb);
1759 # ifndef OPENSSL_NO_TLSEXT
1760 if (ctx2)
1761 SSL_CTX_set_tmp_rsa_callback(ctx2, tmp_rsa_cb);
1762 # endif
1763 }
1764 # else
1765 if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx)) {
1766 RSA *rsa;
1767
1768 BIO_printf(bio_s_out, "Generating temp (512 bit) RSA key...");
1769 BIO_flush(bio_s_out);
1770
1771 rsa = RSA_generate_key(512, RSA_F4, NULL);
1772
1773 if (!SSL_CTX_set_tmp_rsa(ctx, rsa)) {
1774 ERR_print_errors(bio_err);
1775 goto end;
1776 }
1777 # ifndef OPENSSL_NO_TLSEXT
1778 if (ctx2) {
1779 if (!SSL_CTX_set_tmp_rsa(ctx2, rsa)) {
1780 ERR_print_errors(bio_err);
1781 goto end;
1782 }
1783 }
1784 # endif
1785 RSA_free(rsa);
1786 BIO_printf(bio_s_out, "\n");
1787 }
1788 # endif
1789 #endif
1790
1791 #ifndef OPENSSL_NO_PSK
1792 # ifdef OPENSSL_NO_JPAKE
1793 if (psk_key != NULL)
1794 # else
1795 if (psk_key != NULL || jpake_secret)
1796 # endif
1797 {
1798 if (s_debug)
1799 BIO_printf(bio_s_out,
1800 "PSK key given or JPAKE in use, setting server callback\n");
1801 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1802 }
1803
1804 if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) {
1805 BIO_printf(bio_err, "error setting PSK identity hint to context\n");
1806 ERR_print_errors(bio_err);
1807 goto end;
1808 }
1809 #endif
1810
1811 if (cipher != NULL) {
1812 if (!SSL_CTX_set_cipher_list(ctx, cipher)) {
1813 BIO_printf(bio_err, "error setting cipher list\n");
1814 ERR_print_errors(bio_err);
1815 goto end;
1816 }
1817 #ifndef OPENSSL_NO_TLSEXT
1818 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2, cipher)) {
1819 BIO_printf(bio_err, "error setting cipher list\n");
1820 ERR_print_errors(bio_err);
1821 goto end;
1822 }
1823 #endif
1824 }
1825 SSL_CTX_set_verify(ctx, s_server_verify, verify_callback);
1826 SSL_CTX_set_session_id_context(ctx, (void *)&s_server_session_id_context,
1827 sizeof s_server_session_id_context);
1828
1829 /* Set DTLS cookie generation and verification callbacks */
1830 SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1831 SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1832
1833 #ifndef OPENSSL_NO_TLSEXT
1834 if (ctx2) {
1835 SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback);
1836 SSL_CTX_set_session_id_context(ctx2,
1837 (void *)&s_server_session_id_context,
1838 sizeof s_server_session_id_context);
1839
1840 tlsextcbp.biodebug = bio_s_out;
1841 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1842 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1843 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1844 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1845 }
1846 #endif
1847
1848 #ifndef OPENSSL_NO_SRP
1849 if (srp_verifier_file != NULL) {
1850 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
1851 srp_callback_parm.user = NULL;
1852 srp_callback_parm.login = NULL;
1853 if ((ret =
1854 SRP_VBASE_init(srp_callback_parm.vb,
1855 srp_verifier_file)) != SRP_NO_ERROR) {
1856 BIO_printf(bio_err,
1857 "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1858 srp_verifier_file, ret);
1859 goto end;
1860 }
1861 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, verify_callback);
1862 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
1863 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1864 } else
1865 #endif
1866 if (CAfile != NULL) {
1867 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile));
1868 #ifndef OPENSSL_NO_TLSEXT
1869 if (ctx2)
1870 SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile));
1871 #endif
1872 }
1873
1874 BIO_printf(bio_s_out, "ACCEPT\n");
1875 (void)BIO_flush(bio_s_out);
1876 if (www)
1877 do_server(port, socket_type, &accept_socket, www_body, context);
1878 else
1879 do_server(port, socket_type, &accept_socket, sv_body, context);
1880 print_stats(bio_s_out, ctx);
1881 ret = 0;
1882 end:
1883 if (ctx != NULL)
1884 SSL_CTX_free(ctx);
1885 if (s_cert)
1886 X509_free(s_cert);
1887 if (s_dcert)
1888 X509_free(s_dcert);
1889 if (s_key)
1890 EVP_PKEY_free(s_key);
1891 if (s_dkey)
1892 EVP_PKEY_free(s_dkey);
1893 if (pass)
1894 OPENSSL_free(pass);
1895 if (dpass)
1896 OPENSSL_free(dpass);
1897 if (vpm)
1898 X509_VERIFY_PARAM_free(vpm);
1899 #ifndef OPENSSL_NO_TLSEXT
1900 if (tlscstatp.host)
1901 OPENSSL_free(tlscstatp.host);
1902 if (tlscstatp.port)
1903 OPENSSL_free(tlscstatp.port);
1904 if (tlscstatp.path)
1905 OPENSSL_free(tlscstatp.path);
1906 if (ctx2 != NULL)
1907 SSL_CTX_free(ctx2);
1908 if (s_cert2)
1909 X509_free(s_cert2);
1910 if (s_key2)
1911 EVP_PKEY_free(s_key2);
1912 #endif
1913 if (bio_s_out != NULL) {
1914 BIO_free(bio_s_out);
1915 bio_s_out = NULL;
1916 }
1917 apps_shutdown();
1918 OPENSSL_EXIT(ret);
1919 }
1920
print_stats(BIO * bio,SSL_CTX * ssl_ctx)1921 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1922 {
1923 BIO_printf(bio, "%4ld items in the session cache\n",
1924 SSL_CTX_sess_number(ssl_ctx));
1925 BIO_printf(bio, "%4ld client connects (SSL_connect())\n",
1926 SSL_CTX_sess_connect(ssl_ctx));
1927 BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n",
1928 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1929 BIO_printf(bio, "%4ld client connects that finished\n",
1930 SSL_CTX_sess_connect_good(ssl_ctx));
1931 BIO_printf(bio, "%4ld server accepts (SSL_accept())\n",
1932 SSL_CTX_sess_accept(ssl_ctx));
1933 BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n",
1934 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1935 BIO_printf(bio, "%4ld server accepts that finished\n",
1936 SSL_CTX_sess_accept_good(ssl_ctx));
1937 BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx));
1938 BIO_printf(bio, "%4ld session cache misses\n",
1939 SSL_CTX_sess_misses(ssl_ctx));
1940 BIO_printf(bio, "%4ld session cache timeouts\n",
1941 SSL_CTX_sess_timeouts(ssl_ctx));
1942 BIO_printf(bio, "%4ld callback cache hits\n",
1943 SSL_CTX_sess_cb_hits(ssl_ctx));
1944 BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n",
1945 SSL_CTX_sess_cache_full(ssl_ctx),
1946 SSL_CTX_sess_get_cache_size(ssl_ctx));
1947 }
1948
sv_body(char * hostname,int s,unsigned char * context)1949 static int sv_body(char *hostname, int s, unsigned char *context)
1950 {
1951 char *buf = NULL;
1952 fd_set readfds;
1953 int ret = 1, width;
1954 int k, i, fdin;
1955 unsigned long l;
1956 SSL *con = NULL;
1957 BIO *sbio;
1958 #ifndef OPENSSL_NO_KRB5
1959 KSSL_CTX *kctx;
1960 #endif
1961 struct timeval timeout;
1962 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1963 struct timeval tv;
1964 #else
1965 struct timeval *timeoutp;
1966 #endif
1967
1968 if ((buf = OPENSSL_malloc(bufsize)) == NULL) {
1969 BIO_printf(bio_err, "out of memory\n");
1970 goto err;
1971 }
1972 #ifdef FIONBIO
1973 if (s_nbio) {
1974 unsigned long sl = 1;
1975
1976 if (!s_quiet)
1977 BIO_printf(bio_err, "turning on non blocking io\n");
1978 if (BIO_socket_ioctl(s, FIONBIO, &sl) < 0)
1979 ERR_print_errors(bio_err);
1980 }
1981 #endif
1982
1983 if (con == NULL) {
1984 con = SSL_new(ctx);
1985 #ifndef OPENSSL_NO_TLSEXT
1986 if (s_tlsextdebug) {
1987 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1988 SSL_set_tlsext_debug_arg(con, bio_s_out);
1989 }
1990 if (s_tlsextstatus) {
1991 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
1992 tlscstatp.err = bio_err;
1993 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
1994 }
1995 #endif
1996 #ifndef OPENSSL_NO_KRB5
1997 if ((kctx = kssl_ctx_new()) != NULL) {
1998 SSL_set0_kssl_ctx(con, kctx);
1999 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2000 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2001 }
2002 #endif /* OPENSSL_NO_KRB5 */
2003 if (context)
2004 SSL_set_session_id_context(con, context, strlen((char *)context));
2005 }
2006 SSL_clear(con);
2007 #if 0
2008 # ifdef TLSEXT_TYPE_opaque_prf_input
2009 SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2010 # endif
2011 #endif
2012
2013 if (SSL_version(con) == DTLS1_VERSION) {
2014
2015 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2016
2017 if (enable_timeouts) {
2018 timeout.tv_sec = 0;
2019 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2020 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2021
2022 timeout.tv_sec = 0;
2023 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2024 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2025 }
2026
2027 if (socket_mtu) {
2028 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2029 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2030 DTLS_get_link_min_mtu(con));
2031 ret = -1;
2032 BIO_free(sbio);
2033 goto err;
2034 }
2035 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2036 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2037 BIO_printf(bio_err, "Failed to set MTU\n");
2038 ret = -1;
2039 BIO_free(sbio);
2040 goto err;
2041 }
2042 } else
2043 /* want to do MTU discovery */
2044 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2045
2046 /* turn on cookie exchange */
2047 SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2048 } else
2049 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2050
2051 if (s_nbio_test) {
2052 BIO *test;
2053
2054 test = BIO_new(BIO_f_nbio_test());
2055 sbio = BIO_push(test, sbio);
2056 }
2057 #ifndef OPENSSL_NO_JPAKE
2058 if (jpake_secret)
2059 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2060 #endif
2061
2062 SSL_set_bio(con, sbio, sbio);
2063 SSL_set_accept_state(con);
2064 /* SSL_set_fd(con,s); */
2065
2066 if (s_debug) {
2067 SSL_set_debug(con, 1);
2068 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
2069 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
2070 }
2071 if (s_msg) {
2072 SSL_set_msg_callback(con, msg_cb);
2073 SSL_set_msg_callback_arg(con, bio_s_out);
2074 }
2075 #ifndef OPENSSL_NO_TLSEXT
2076 if (s_tlsextdebug) {
2077 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2078 SSL_set_tlsext_debug_arg(con, bio_s_out);
2079 }
2080 #endif
2081
2082 width = s + 1;
2083 for (;;) {
2084 int read_from_terminal;
2085 int read_from_sslcon;
2086
2087 read_from_terminal = 0;
2088 read_from_sslcon = SSL_pending(con);
2089
2090 if (!read_from_sslcon) {
2091 fdin = fileno(stdin);
2092 if (fdin < 0) {
2093 BIO_printf(bio_err,"Bad fileno for stdin\n");
2094 goto err;
2095 }
2096 FD_ZERO(&readfds);
2097 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2098 openssl_fdset(fdin, &readfds);
2099 #endif
2100 openssl_fdset(s, &readfds);
2101 /*
2102 * Note: under VMS with SOCKETSHR the second parameter is
2103 * currently of type (int *) whereas under other systems it is
2104 * (void *) if you don't have a cast it will choke the compiler:
2105 * if you do have a cast then you can either go for (int *) or
2106 * (void *).
2107 */
2108 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2109 /*
2110 * Under DOS (non-djgpp) and Windows we can't select on stdin:
2111 * only on sockets. As a workaround we timeout the select every
2112 * second and check for any keypress. In a proper Windows
2113 * application we wouldn't do this because it is inefficient.
2114 */
2115 tv.tv_sec = 1;
2116 tv.tv_usec = 0;
2117 i = select(width, (void *)&readfds, NULL, NULL, &tv);
2118 if ((i < 0) || (!i && !_kbhit()))
2119 continue;
2120 if (_kbhit())
2121 read_from_terminal = 1;
2122 #elif defined(OPENSSL_SYS_BEOS_R5)
2123 /* Under BeOS-R5 the situation is similar to DOS */
2124 tv.tv_sec = 1;
2125 tv.tv_usec = 0;
2126 (void)fcntl(fdin, F_SETFL, O_NONBLOCK);
2127 i = select(width, (void *)&readfds, NULL, NULL, &tv);
2128 if ((i < 0) || (!i && read(fdin, buf, 0) < 0))
2129 continue;
2130 if (read(fdin, buf, 0) >= 0)
2131 read_from_terminal = 1;
2132 (void)fcntl(fdin, F_SETFL, 0);
2133 #else
2134 if ((SSL_version(con) == DTLS1_VERSION) &&
2135 DTLSv1_get_timeout(con, &timeout))
2136 timeoutp = &timeout;
2137 else
2138 timeoutp = NULL;
2139
2140 i = select(width, (void *)&readfds, NULL, NULL, timeoutp);
2141
2142 if ((SSL_version(con) == DTLS1_VERSION)
2143 && DTLSv1_handle_timeout(con) > 0) {
2144 BIO_printf(bio_err, "TIMEOUT occured\n");
2145 }
2146
2147 if (i <= 0)
2148 continue;
2149 if (FD_ISSET(fdin, &readfds))
2150 read_from_terminal = 1;
2151 #endif
2152 if (FD_ISSET(s, &readfds))
2153 read_from_sslcon = 1;
2154 }
2155 if (read_from_terminal) {
2156 if (s_crlf) {
2157 int j, lf_num;
2158
2159 i = raw_read_stdin(buf, bufsize / 2);
2160 lf_num = 0;
2161 /* both loops are skipped when i <= 0 */
2162 for (j = 0; j < i; j++)
2163 if (buf[j] == '\n')
2164 lf_num++;
2165 for (j = i - 1; j >= 0; j--) {
2166 buf[j + lf_num] = buf[j];
2167 if (buf[j] == '\n') {
2168 lf_num--;
2169 i++;
2170 buf[j + lf_num] = '\r';
2171 }
2172 }
2173 assert(lf_num == 0);
2174 } else
2175 i = raw_read_stdin(buf, bufsize);
2176 if (!s_quiet) {
2177 if ((i <= 0) || (buf[0] == 'Q')) {
2178 BIO_printf(bio_s_out, "DONE\n");
2179 SHUTDOWN(s);
2180 close_accept_socket();
2181 ret = -11;
2182 goto err;
2183 }
2184 if ((i <= 0) || (buf[0] == 'q')) {
2185 BIO_printf(bio_s_out, "DONE\n");
2186 if (SSL_version(con) != DTLS1_VERSION)
2187 SHUTDOWN(s);
2188 /*
2189 * close_accept_socket(); ret= -11;
2190 */
2191 goto err;
2192 }
2193 #ifndef OPENSSL_NO_HEARTBEATS
2194 if ((buf[0] == 'B') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2195 BIO_printf(bio_err, "HEARTBEATING\n");
2196 SSL_heartbeat(con);
2197 i = 0;
2198 continue;
2199 }
2200 #endif
2201 if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2202 SSL_renegotiate(con);
2203 i = SSL_do_handshake(con);
2204 printf("SSL_do_handshake -> %d\n", i);
2205 i = 0; /* 13; */
2206 continue;
2207 /*
2208 * strcpy(buf,"server side RE-NEGOTIATE\n");
2209 */
2210 }
2211 if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) {
2212 SSL_set_verify(con,
2213 SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE,
2214 NULL);
2215 SSL_renegotiate(con);
2216 i = SSL_do_handshake(con);
2217 printf("SSL_do_handshake -> %d\n", i);
2218 i = 0; /* 13; */
2219 continue;
2220 /*
2221 * strcpy(buf,"server side RE-NEGOTIATE asking for client
2222 * cert\n");
2223 */
2224 }
2225 if (buf[0] == 'P') {
2226 static const char *str = "Lets print some clear text\n";
2227 BIO_write(SSL_get_wbio(con), str, strlen(str));
2228 }
2229 if (buf[0] == 'S') {
2230 print_stats(bio_s_out, SSL_get_SSL_CTX(con));
2231 }
2232 }
2233 #ifdef CHARSET_EBCDIC
2234 ebcdic2ascii(buf, buf, i);
2235 #endif
2236 l = k = 0;
2237 for (;;) {
2238 /* should do a select for the write */
2239 #ifdef RENEG
2240 {
2241 static count = 0;
2242 if (++count == 100) {
2243 count = 0;
2244 SSL_renegotiate(con);
2245 }
2246 }
2247 #endif
2248 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2249 #ifndef OPENSSL_NO_SRP
2250 while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) {
2251 BIO_printf(bio_s_out, "LOOKUP renego during write\n");
2252 srp_callback_parm.user =
2253 SRP_VBASE_get_by_user(srp_callback_parm.vb,
2254 srp_callback_parm.login);
2255 if (srp_callback_parm.user)
2256 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2257 srp_callback_parm.user->info);
2258 else
2259 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2260 k = SSL_write(con, &(buf[l]), (unsigned int)i);
2261 }
2262 #endif
2263 switch (SSL_get_error(con, k)) {
2264 case SSL_ERROR_NONE:
2265 break;
2266 case SSL_ERROR_WANT_WRITE:
2267 case SSL_ERROR_WANT_READ:
2268 case SSL_ERROR_WANT_X509_LOOKUP:
2269 BIO_printf(bio_s_out, "Write BLOCK\n");
2270 break;
2271 case SSL_ERROR_SYSCALL:
2272 case SSL_ERROR_SSL:
2273 BIO_printf(bio_s_out, "ERROR\n");
2274 ERR_print_errors(bio_err);
2275 ret = 1;
2276 goto err;
2277 /* break; */
2278 case SSL_ERROR_ZERO_RETURN:
2279 BIO_printf(bio_s_out, "DONE\n");
2280 ret = 1;
2281 goto err;
2282 }
2283 if (k > 0) {
2284 l += k;
2285 i -= k;
2286 }
2287 if (i <= 0)
2288 break;
2289 }
2290 }
2291 if (read_from_sslcon) {
2292 if (!SSL_is_init_finished(con)) {
2293 i = init_ssl_connection(con);
2294
2295 if (i < 0) {
2296 ret = 0;
2297 goto err;
2298 } else if (i == 0) {
2299 ret = 1;
2300 goto err;
2301 }
2302 } else {
2303 again:
2304 i = SSL_read(con, (char *)buf, bufsize);
2305 #ifndef OPENSSL_NO_SRP
2306 while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2307 BIO_printf(bio_s_out, "LOOKUP renego during read\n");
2308 srp_callback_parm.user =
2309 SRP_VBASE_get_by_user(srp_callback_parm.vb,
2310 srp_callback_parm.login);
2311 if (srp_callback_parm.user)
2312 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2313 srp_callback_parm.user->info);
2314 else
2315 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2316 i = SSL_read(con, (char *)buf, bufsize);
2317 }
2318 #endif
2319 switch (SSL_get_error(con, i)) {
2320 case SSL_ERROR_NONE:
2321 #ifdef CHARSET_EBCDIC
2322 ascii2ebcdic(buf, buf, i);
2323 #endif
2324 raw_write_stdout(buf, (unsigned int)i);
2325 if (SSL_pending(con))
2326 goto again;
2327 break;
2328 case SSL_ERROR_WANT_WRITE:
2329 case SSL_ERROR_WANT_READ:
2330 BIO_printf(bio_s_out, "Read BLOCK\n");
2331 break;
2332 case SSL_ERROR_SYSCALL:
2333 case SSL_ERROR_SSL:
2334 BIO_printf(bio_s_out, "ERROR\n");
2335 ERR_print_errors(bio_err);
2336 ret = 1;
2337 goto err;
2338 case SSL_ERROR_ZERO_RETURN:
2339 BIO_printf(bio_s_out, "DONE\n");
2340 ret = 1;
2341 goto err;
2342 }
2343 }
2344 }
2345 }
2346 err:
2347 if (con != NULL) {
2348 BIO_printf(bio_s_out, "shutting down SSL\n");
2349 #if 1
2350 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
2351 #else
2352 SSL_shutdown(con);
2353 #endif
2354 SSL_free(con);
2355 }
2356 BIO_printf(bio_s_out, "CONNECTION CLOSED\n");
2357 if (buf != NULL) {
2358 OPENSSL_cleanse(buf, bufsize);
2359 OPENSSL_free(buf);
2360 }
2361 if (ret >= 0)
2362 BIO_printf(bio_s_out, "ACCEPT\n");
2363 return (ret);
2364 }
2365
close_accept_socket(void)2366 static void close_accept_socket(void)
2367 {
2368 BIO_printf(bio_err, "shutdown accept socket\n");
2369 if (accept_socket >= 0) {
2370 SHUTDOWN2(accept_socket);
2371 }
2372 }
2373
init_ssl_connection(SSL * con)2374 static int init_ssl_connection(SSL *con)
2375 {
2376 int i;
2377 const char *str;
2378 X509 *peer;
2379 long verify_error;
2380 MS_STATIC char buf[BUFSIZ];
2381 #ifndef OPENSSL_NO_KRB5
2382 char *client_princ;
2383 #endif
2384 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2385 const unsigned char *next_proto_neg;
2386 unsigned next_proto_neg_len;
2387 #endif
2388 unsigned char *exportedkeymat;
2389
2390 i = SSL_accept(con);
2391 #ifndef OPENSSL_NO_SRP
2392 while (i <= 0 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2393 BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
2394 srp_callback_parm.login);
2395 srp_callback_parm.user =
2396 SRP_VBASE_get_by_user(srp_callback_parm.vb,
2397 srp_callback_parm.login);
2398 if (srp_callback_parm.user)
2399 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2400 srp_callback_parm.user->info);
2401 else
2402 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2403 i = SSL_accept(con);
2404 }
2405 #endif
2406 if (i <= 0) {
2407 if (BIO_sock_should_retry(i)) {
2408 BIO_printf(bio_s_out, "DELAY\n");
2409 return (1);
2410 }
2411
2412 BIO_printf(bio_err, "ERROR\n");
2413 verify_error = SSL_get_verify_result(con);
2414 if (verify_error != X509_V_OK) {
2415 BIO_printf(bio_err, "verify error:%s\n",
2416 X509_verify_cert_error_string(verify_error));
2417 } else
2418 ERR_print_errors(bio_err);
2419 return (0);
2420 }
2421
2422 PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con));
2423
2424 peer = SSL_get_peer_certificate(con);
2425 if (peer != NULL) {
2426 BIO_printf(bio_s_out, "Client certificate\n");
2427 PEM_write_bio_X509(bio_s_out, peer);
2428 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf);
2429 BIO_printf(bio_s_out, "subject=%s\n", buf);
2430 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf);
2431 BIO_printf(bio_s_out, "issuer=%s\n", buf);
2432 X509_free(peer);
2433 }
2434
2435 if (SSL_get_shared_ciphers(con, buf, sizeof buf) != NULL)
2436 BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf);
2437 str = SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2438 BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)");
2439
2440 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2441 SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2442 if (next_proto_neg) {
2443 BIO_printf(bio_s_out, "NEXTPROTO is ");
2444 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2445 BIO_printf(bio_s_out, "\n");
2446 }
2447 #endif
2448 #ifndef OPENSSL_NO_SRTP
2449 {
2450 SRTP_PROTECTION_PROFILE *srtp_profile
2451 = SSL_get_selected_srtp_profile(con);
2452
2453 if (srtp_profile)
2454 BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n",
2455 srtp_profile->name);
2456 }
2457 #endif
2458 if (SSL_cache_hit(con))
2459 BIO_printf(bio_s_out, "Reused session-id\n");
2460 if (SSL_ctrl(con, SSL_CTRL_GET_FLAGS, 0, NULL) &
2461 TLS1_FLAGS_TLS_PADDING_BUG)
2462 BIO_printf(bio_s_out, "Peer has incorrect TLSv1 block padding\n");
2463 #ifndef OPENSSL_NO_KRB5
2464 client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2465 if (client_princ != NULL) {
2466 BIO_printf(bio_s_out, "Kerberos peer principal is %s\n",
2467 client_princ);
2468 }
2469 #endif /* OPENSSL_NO_KRB5 */
2470 BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2471 SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2472 if (keymatexportlabel != NULL) {
2473 BIO_printf(bio_s_out, "Keying material exporter:\n");
2474 BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel);
2475 BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen);
2476 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2477 if (exportedkeymat != NULL) {
2478 if (!SSL_export_keying_material(con, exportedkeymat,
2479 keymatexportlen,
2480 keymatexportlabel,
2481 strlen(keymatexportlabel),
2482 NULL, 0, 0)) {
2483 BIO_printf(bio_s_out, " Error\n");
2484 } else {
2485 BIO_printf(bio_s_out, " Keying material: ");
2486 for (i = 0; i < keymatexportlen; i++)
2487 BIO_printf(bio_s_out, "%02X", exportedkeymat[i]);
2488 BIO_printf(bio_s_out, "\n");
2489 }
2490 OPENSSL_free(exportedkeymat);
2491 }
2492 }
2493
2494 return (1);
2495 }
2496
2497 #ifndef OPENSSL_NO_DH
load_dh_param(const char * dhfile)2498 static DH *load_dh_param(const char *dhfile)
2499 {
2500 DH *ret = NULL;
2501 BIO *bio;
2502
2503 if ((bio = BIO_new_file(dhfile, "r")) == NULL)
2504 goto err;
2505 ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
2506 err:
2507 if (bio != NULL)
2508 BIO_free(bio);
2509 return (ret);
2510 }
2511 #endif
2512 #ifndef OPENSSL_NO_KRB5
2513 char *client_princ;
2514 #endif
2515
2516 #if 0
2517 static int load_CA(SSL_CTX *ctx, char *file)
2518 {
2519 FILE *in;
2520 X509 *x = NULL;
2521
2522 if ((in = fopen(file, "r")) == NULL)
2523 return (0);
2524
2525 for (;;) {
2526 if (PEM_read_X509(in, &x, NULL) == NULL)
2527 break;
2528 SSL_CTX_add_client_CA(ctx, x);
2529 }
2530 if (x != NULL)
2531 X509_free(x);
2532 fclose(in);
2533 return (1);
2534 }
2535 #endif
2536
www_body(char * hostname,int s,unsigned char * context)2537 static int www_body(char *hostname, int s, unsigned char *context)
2538 {
2539 char *buf = NULL;
2540 int ret = 1;
2541 int i, j, k, dot;
2542 SSL *con;
2543 const SSL_CIPHER *c;
2544 BIO *io, *ssl_bio, *sbio;
2545 #ifndef OPENSSL_NO_KRB5
2546 KSSL_CTX *kctx;
2547 #endif
2548
2549 buf = OPENSSL_malloc(bufsize);
2550 if (buf == NULL)
2551 return (0);
2552 io = BIO_new(BIO_f_buffer());
2553 ssl_bio = BIO_new(BIO_f_ssl());
2554 if ((io == NULL) || (ssl_bio == NULL))
2555 goto err;
2556
2557 #ifdef FIONBIO
2558 if (s_nbio) {
2559 unsigned long sl = 1;
2560
2561 if (!s_quiet)
2562 BIO_printf(bio_err, "turning on non blocking io\n");
2563 if (BIO_socket_ioctl(s, FIONBIO, &sl) < 0)
2564 ERR_print_errors(bio_err);
2565 }
2566 #endif
2567
2568 /* lets make the output buffer a reasonable size */
2569 if (!BIO_set_write_buffer_size(io, bufsize))
2570 goto err;
2571
2572 if ((con = SSL_new(ctx)) == NULL)
2573 goto err;
2574 #ifndef OPENSSL_NO_TLSEXT
2575 if (s_tlsextdebug) {
2576 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2577 SSL_set_tlsext_debug_arg(con, bio_s_out);
2578 }
2579 #endif
2580 #ifndef OPENSSL_NO_KRB5
2581 if ((kctx = kssl_ctx_new()) != NULL) {
2582 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2583 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2584 }
2585 #endif /* OPENSSL_NO_KRB5 */
2586 if (context)
2587 SSL_set_session_id_context(con, context, strlen((char *)context));
2588
2589 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2590 if (s_nbio_test) {
2591 BIO *test;
2592
2593 test = BIO_new(BIO_f_nbio_test());
2594 sbio = BIO_push(test, sbio);
2595 }
2596 SSL_set_bio(con, sbio, sbio);
2597 SSL_set_accept_state(con);
2598
2599 /* SSL_set_fd(con,s); */
2600 BIO_set_ssl(ssl_bio, con, BIO_CLOSE);
2601 BIO_push(io, ssl_bio);
2602 #ifdef CHARSET_EBCDIC
2603 io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io);
2604 #endif
2605
2606 if (s_debug) {
2607 SSL_set_debug(con, 1);
2608 BIO_set_callback(SSL_get_rbio(con), bio_dump_callback);
2609 BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out);
2610 }
2611 if (s_msg) {
2612 SSL_set_msg_callback(con, msg_cb);
2613 SSL_set_msg_callback_arg(con, bio_s_out);
2614 }
2615
2616 for (;;) {
2617 if (hack) {
2618 i = SSL_accept(con);
2619 #ifndef OPENSSL_NO_SRP
2620 while (i <= 0
2621 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) {
2622 BIO_printf(bio_s_out, "LOOKUP during accept %s\n",
2623 srp_callback_parm.login);
2624 srp_callback_parm.user =
2625 SRP_VBASE_get_by_user(srp_callback_parm.vb,
2626 srp_callback_parm.login);
2627 if (srp_callback_parm.user)
2628 BIO_printf(bio_s_out, "LOOKUP done %s\n",
2629 srp_callback_parm.user->info);
2630 else
2631 BIO_printf(bio_s_out, "LOOKUP not successful\n");
2632 i = SSL_accept(con);
2633 }
2634 #endif
2635 switch (SSL_get_error(con, i)) {
2636 case SSL_ERROR_NONE:
2637 break;
2638 case SSL_ERROR_WANT_WRITE:
2639 case SSL_ERROR_WANT_READ:
2640 case SSL_ERROR_WANT_X509_LOOKUP:
2641 continue;
2642 case SSL_ERROR_SYSCALL:
2643 case SSL_ERROR_SSL:
2644 case SSL_ERROR_ZERO_RETURN:
2645 ret = 1;
2646 goto err;
2647 /* break; */
2648 }
2649
2650 SSL_renegotiate(con);
2651 SSL_write(con, NULL, 0);
2652 }
2653
2654 i = BIO_gets(io, buf, bufsize - 1);
2655 if (i < 0) { /* error */
2656 if (!BIO_should_retry(io)) {
2657 if (!s_quiet)
2658 ERR_print_errors(bio_err);
2659 goto err;
2660 } else {
2661 BIO_printf(bio_s_out, "read R BLOCK\n");
2662 #if defined(OPENSSL_SYS_NETWARE)
2663 delay(1000);
2664 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2665 sleep(1);
2666 #endif
2667 continue;
2668 }
2669 } else if (i == 0) { /* end of input */
2670 ret = 1;
2671 goto end;
2672 }
2673
2674 /* else we have data */
2675 if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) ||
2676 ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) {
2677 char *p;
2678 X509 *peer;
2679 STACK_OF(SSL_CIPHER) *sk;
2680 static const char *space = " ";
2681
2682 BIO_puts(io,
2683 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2684 BIO_puts(io, "<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2685 BIO_puts(io, "<pre>\n");
2686 /* BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2687 BIO_puts(io, "\n");
2688 for (i = 0; i < local_argc; i++) {
2689 BIO_puts(io, local_argv[i]);
2690 BIO_write(io, " ", 1);
2691 }
2692 BIO_puts(io, "\n");
2693
2694 BIO_printf(io,
2695 "Secure Renegotiation IS%s supported\n",
2696 SSL_get_secure_renegotiation_support(con) ?
2697 "" : " NOT");
2698
2699 /*
2700 * The following is evil and should not really be done
2701 */
2702 BIO_printf(io, "Ciphers supported in s_server binary\n");
2703 sk = SSL_get_ciphers(con);
2704 j = sk_SSL_CIPHER_num(sk);
2705 for (i = 0; i < j; i++) {
2706 c = sk_SSL_CIPHER_value(sk, i);
2707 BIO_printf(io, "%-11s:%-25s",
2708 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2709 if ((((i + 1) % 2) == 0) && (i + 1 != j))
2710 BIO_puts(io, "\n");
2711 }
2712 BIO_puts(io, "\n");
2713 p = SSL_get_shared_ciphers(con, buf, bufsize);
2714 if (p != NULL) {
2715 BIO_printf(io,
2716 "---\nCiphers common between both SSL end points:\n");
2717 j = i = 0;
2718 while (*p) {
2719 if (*p == ':') {
2720 BIO_write(io, space, 26 - j);
2721 i++;
2722 j = 0;
2723 BIO_write(io, ((i % 3) ? " " : "\n"), 1);
2724 } else {
2725 BIO_write(io, p, 1);
2726 j++;
2727 }
2728 p++;
2729 }
2730 BIO_puts(io, "\n");
2731 }
2732 BIO_printf(io, (SSL_cache_hit(con)
2733 ? "---\nReused, " : "---\nNew, "));
2734 c = SSL_get_current_cipher(con);
2735 BIO_printf(io, "%s, Cipher is %s\n",
2736 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2737 SSL_SESSION_print(io, SSL_get_session(con));
2738 BIO_printf(io, "---\n");
2739 print_stats(io, SSL_get_SSL_CTX(con));
2740 BIO_printf(io, "---\n");
2741 peer = SSL_get_peer_certificate(con);
2742 if (peer != NULL) {
2743 BIO_printf(io, "Client certificate\n");
2744 X509_print(io, peer);
2745 PEM_write_bio_X509(io, peer);
2746 } else
2747 BIO_puts(io, "no client certificate available\n");
2748 BIO_puts(io, "</BODY></HTML>\r\n\r\n");
2749 break;
2750 } else if ((www == 2 || www == 3)
2751 && (strncmp("GET /", buf, 5) == 0)) {
2752 BIO *file;
2753 char *p, *e;
2754 static const char *text =
2755 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2756
2757 /* skip the '/' */
2758 p = &(buf[5]);
2759
2760 dot = 1;
2761 for (e = p; *e != '\0'; e++) {
2762 if (e[0] == ' ')
2763 break;
2764
2765 switch (dot) {
2766 case 1:
2767 dot = (e[0] == '.') ? 2 : 0;
2768 break;
2769 case 2:
2770 dot = (e[0] == '.') ? 3 : 0;
2771 break;
2772 case 3:
2773 dot = (e[0] == '/') ? -1 : 0;
2774 break;
2775 }
2776 if (dot == 0)
2777 dot = (e[0] == '/') ? 1 : 0;
2778 }
2779 dot = (dot == 3) || (dot == -1); /* filename contains ".."
2780 * component */
2781
2782 if (*e == '\0') {
2783 BIO_puts(io, text);
2784 BIO_printf(io, "'%s' is an invalid file name\r\n", p);
2785 break;
2786 }
2787 *e = '\0';
2788
2789 if (dot) {
2790 BIO_puts(io, text);
2791 BIO_printf(io, "'%s' contains '..' reference\r\n", p);
2792 break;
2793 }
2794
2795 if (*p == '/') {
2796 BIO_puts(io, text);
2797 BIO_printf(io, "'%s' is an invalid path\r\n", p);
2798 break;
2799 }
2800 #if 0
2801 /* append if a directory lookup */
2802 if (e[-1] == '/')
2803 strcat(p, "index.html");
2804 #endif
2805
2806 /* if a directory, do the index thang */
2807 if (app_isdir(p) > 0) {
2808 #if 0 /* must check buffer size */
2809 strcat(p, "/index.html");
2810 #else
2811 BIO_puts(io, text);
2812 BIO_printf(io, "'%s' is a directory\r\n", p);
2813 break;
2814 #endif
2815 }
2816
2817 if ((file = BIO_new_file(p, "r")) == NULL) {
2818 BIO_puts(io, text);
2819 BIO_printf(io, "Error opening '%s'\r\n", p);
2820 ERR_print_errors(io);
2821 break;
2822 }
2823
2824 if (!s_quiet)
2825 BIO_printf(bio_err, "FILE:%s\n", p);
2826
2827 if (www == 2) {
2828 i = strlen(p);
2829 if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) ||
2830 ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) ||
2831 ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0)))
2832 BIO_puts(io,
2833 "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2834 else
2835 BIO_puts(io,
2836 "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2837 }
2838 /* send the file */
2839 for (;;) {
2840 i = BIO_read(file, buf, bufsize);
2841 if (i <= 0)
2842 break;
2843
2844 #ifdef RENEG
2845 total_bytes += i;
2846 fprintf(stderr, "%d\n", i);
2847 if (total_bytes > 3 * 1024) {
2848 total_bytes = 0;
2849 fprintf(stderr, "RENEGOTIATE\n");
2850 SSL_renegotiate(con);
2851 }
2852 #endif
2853
2854 for (j = 0; j < i;) {
2855 #ifdef RENEG
2856 {
2857 static count = 0;
2858 if (++count == 13) {
2859 SSL_renegotiate(con);
2860 }
2861 }
2862 #endif
2863 k = BIO_write(io, &(buf[j]), i - j);
2864 if (k <= 0) {
2865 if (!BIO_should_retry(io))
2866 goto write_error;
2867 else {
2868 BIO_printf(bio_s_out, "rwrite W BLOCK\n");
2869 }
2870 } else {
2871 j += k;
2872 }
2873 }
2874 }
2875 write_error:
2876 BIO_free(file);
2877 break;
2878 }
2879 }
2880
2881 for (;;) {
2882 i = (int)BIO_flush(io);
2883 if (i <= 0) {
2884 if (!BIO_should_retry(io))
2885 break;
2886 } else
2887 break;
2888 }
2889 end:
2890 #if 1
2891 /* make sure we re-use sessions */
2892 SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
2893 #else
2894 /* This kills performance */
2895 /*
2896 * SSL_shutdown(con); A shutdown gets sent in the BIO_free_all(io)
2897 * procession
2898 */
2899 #endif
2900
2901 err:
2902
2903 if (ret >= 0)
2904 BIO_printf(bio_s_out, "ACCEPT\n");
2905
2906 if (buf != NULL)
2907 OPENSSL_free(buf);
2908 if (io != NULL)
2909 BIO_free_all(io);
2910 /* if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2911 return (ret);
2912 }
2913
2914 #ifndef OPENSSL_NO_RSA
tmp_rsa_cb(SSL * s,int is_export,int keylength)2915 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2916 {
2917 BIGNUM *bn = NULL;
2918 static RSA *rsa_tmp = NULL;
2919
2920 if (!rsa_tmp && ((bn = BN_new()) == NULL))
2921 BIO_printf(bio_err, "Allocation error in generating RSA key\n");
2922 if (!rsa_tmp && bn) {
2923 if (!s_quiet) {
2924 BIO_printf(bio_err, "Generating temp (%d bit) RSA key...",
2925 keylength);
2926 (void)BIO_flush(bio_err);
2927 }
2928 if (!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2929 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL)) {
2930 if (rsa_tmp)
2931 RSA_free(rsa_tmp);
2932 rsa_tmp = NULL;
2933 }
2934 if (!s_quiet) {
2935 BIO_printf(bio_err, "\n");
2936 (void)BIO_flush(bio_err);
2937 }
2938 BN_free(bn);
2939 }
2940 return (rsa_tmp);
2941 }
2942 #endif
2943
2944 #define MAX_SESSION_ID_ATTEMPTS 10
generate_session_id(const SSL * ssl,unsigned char * id,unsigned int * id_len)2945 static int generate_session_id(const SSL *ssl, unsigned char *id,
2946 unsigned int *id_len)
2947 {
2948 unsigned int count = 0;
2949 do {
2950 if (RAND_pseudo_bytes(id, *id_len) < 0)
2951 return 0;
2952 /*
2953 * Prefix the session_id with the required prefix. NB: If our prefix
2954 * is too long, clip it - but there will be worse effects anyway, eg.
2955 * the server could only possibly create 1 session ID (ie. the
2956 * prefix!) so all future session negotiations will fail due to
2957 * conflicts.
2958 */
2959 memcpy(id, session_id_prefix,
2960 (strlen(session_id_prefix) < *id_len) ?
2961 strlen(session_id_prefix) : *id_len);
2962 }
2963 while (SSL_has_matching_session_id(ssl, id, *id_len) &&
2964 (++count < MAX_SESSION_ID_ATTEMPTS));
2965 if (count >= MAX_SESSION_ID_ATTEMPTS)
2966 return 0;
2967 return 1;
2968 }
2969