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[thirdparty/openssl.git] / apps / s_cb.c
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863fe2ec 1/* apps/s_cb.c - callback functions used by s_client, s_server, and s_time */
58964a49 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6
RE		 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 */
a661b653 58/* ====================================================================
241520e6 59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
a661b653
BM		 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 */
d02b48c6
RE		 111
112#include <stdio.h>
113#include <stdlib.h>
114#define USE_SOCKETS
115#define NON_MAIN
116#include "apps.h"
117#undef NON_MAIN
118#undef USE_SOCKETS
ec577822 119#include <openssl/err.h>
07a9d1a2 120#include <openssl/rand.h>
ec577822
BM		 121#include <openssl/x509.h>
122#include <openssl/ssl.h>
d02b48c6
RE		 123#include "s_apps.h"
124
07a9d1a2
DSH		 125#define COOKIE_SECRET_LENGTH 16
126
d02b48c6
RE		 127int verify_depth=0;
128int verify_error=X509_V_OK;
5d20c4fb 129int verify_return_error=0;
07a9d1a2
DSH		 130unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
131int cookie_initialized=0;
d02b48c6 132
6b691a5c 133int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
d02b48c6 134 {
d02b48c6
RE		 135 X509 *err_cert;
136 int err,depth;
137
138 err_cert=X509_STORE_CTX_get_current_cert(ctx);
139 err= X509_STORE_CTX_get_error(ctx);
140 depth= X509_STORE_CTX_get_error_depth(ctx);
141
17716680
DSH		 142 BIO_printf(bio_err,"depth=%d ",depth);
143 if (err_cert)
144 {
145 X509_NAME_print_ex(bio_err, X509_get_subject_name(err_cert),
146 0, XN_FLAG_ONELINE);
147 BIO_puts(bio_err, "\n");
148 }
149 else
150 BIO_puts(bio_err, "<no cert>\n");
d02b48c6
RE		 151 if (!ok)
152 {
153 BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
154 X509_verify_cert_error_string(err));
155 if (verify_depth >= depth)
156 {
5d20c4fb
DSH		 157 if (!verify_return_error)
158 ok=1;
d02b48c6
RE		 159 verify_error=X509_V_OK;
160 }
161 else
162 {
163 ok=0;
164 verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG;
165 }
166 }
17716680 167 switch (err)
d02b48c6
RE		 168 {
169 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
17716680
DSH		 170 BIO_puts(bio_err,"issuer= ");
171 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
172 0, XN_FLAG_ONELINE);
173 BIO_puts(bio_err, "\n");
d02b48c6
RE		 174 break;
175 case X509_V_ERR_CERT_NOT_YET_VALID:
176 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
177 BIO_printf(bio_err,"notBefore=");
17716680 178 ASN1_TIME_print(bio_err,X509_get_notBefore(err_cert));
d02b48c6
RE		 179 BIO_printf(bio_err,"\n");
180 break;
181 case X509_V_ERR_CERT_HAS_EXPIRED:
182 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
183 BIO_printf(bio_err,"notAfter=");
17716680 184 ASN1_TIME_print(bio_err,X509_get_notAfter(err_cert));
d02b48c6
RE		 185 BIO_printf(bio_err,"\n");
186 break;
17716680
DSH		 187 case X509_V_ERR_NO_EXPLICIT_POLICY:
188 policies_print(bio_err, ctx);
189 break;
d02b48c6 190 }
17716680
DSH		 191 if (err == X509_V_OK && ok == 2)
192 policies_print(bio_err, ctx);
193
d02b48c6
RE		 194 BIO_printf(bio_err,"verify return:%d\n",ok);
195 return(ok);
196 }
197
6b691a5c 198int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
d02b48c6
RE		 199 {
200 if (cert_file != NULL)
201 {
dfeab068 202 /*
d02b48c6
RE		 203 SSL *ssl;
204 X509 *x509;
dfeab068 205 */
d02b48c6
RE		 206
207 if (SSL_CTX_use_certificate_file(ctx,cert_file,
208 SSL_FILETYPE_PEM) <= 0)
209 {
58964a49 210 BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file);
d02b48c6
RE		 211 ERR_print_errors(bio_err);
212 return(0);
213 }
214 if (key_file == NULL) key_file=cert_file;
215 if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
216 SSL_FILETYPE_PEM) <= 0)
217 {
58964a49 218 BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file);
d02b48c6
RE		 219 ERR_print_errors(bio_err);
220 return(0);
221 }
222
dfeab068
RE		 223 /*
224 In theory this is no longer needed
d02b48c6
RE		 225 ssl=SSL_new(ctx);
226 x509=SSL_get_certificate(ssl);
227
a8236c8c
DSH		 228 if (x509 != NULL) {
229 EVP_PKEY *pktmp;
230 pktmp = X509_get_pubkey(x509);
231 EVP_PKEY_copy_parameters(pktmp,
232 SSL_get_privatekey(ssl));
233 EVP_PKEY_free(pktmp);
234 }
d02b48c6 235 SSL_free(ssl);
dfeab068 236 */
d02b48c6
RE		 237
238 /* If we are using DSA, we can copy the parameters from
239 * the private key */
240
241
242 /* Now we know that a key and cert have been set against
243 * the SSL context */
244 if (!SSL_CTX_check_private_key(ctx))
245 {
246 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
247 return(0);
248 }
249 }
250 return(1);
251 }
252
826a42a0
DSH		 253int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key)
254 {
abbc186b
DSH		 255 if (cert == NULL)
256 return 1;
826a42a0
DSH		 257 if (SSL_CTX_use_certificate(ctx,cert) <= 0)
258 {
259 BIO_printf(bio_err,"error setting certificate\n");
260 ERR_print_errors(bio_err);
261 return 0;
262 }
263 if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)
264 {
265 BIO_printf(bio_err,"error setting private key\n");
266 ERR_print_errors(bio_err);
267 return 0;
268 }
269
270
271 /* Now we know that a key and cert have been set against
272 * the SSL context */
273 if (!SSL_CTX_check_private_key(ctx))
274 {
275 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
276 return 0;
277 }
278 return 1;
279 }
280
25495640 281long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
774b2fe7 282 int argi, long argl, long ret)
d02b48c6
RE		 283 {
284 BIO *out;
285
286 out=(BIO *)BIO_get_callback_arg(bio);
287 if (out == NULL) return(ret);
288
289 if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
290 {
70d71f61
DSH		 291 BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
292 (void *)bio,argp,(unsigned long)argi,ret,ret);
d02b48c6
RE		 293 BIO_dump(out,argp,(int)ret);
294 return(ret);
295 }
296 else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
297 {
70d71f61
DSH		 298 BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
299 (void *)bio,argp,(unsigned long)argi,ret,ret);
d02b48c6
RE		 300 BIO_dump(out,argp,(int)ret);
301 }
302 return(ret);
303 }
304
45d87a1f 305void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
d02b48c6 306 {
7d727231 307 const char *str;
d02b48c6
RE		 308 int w;
309
310 w=where& ~SSL_ST_MASK;
311
312 if (w & SSL_ST_CONNECT) str="SSL_connect";
313 else if (w & SSL_ST_ACCEPT) str="SSL_accept";
314 else str="undefined";
315
316 if (where & SSL_CB_LOOP)
317 {
318 BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
319 }
320 else if (where & SSL_CB_ALERT)
321 {
322 str=(where & SSL_CB_READ)?"read":"write";
323 BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
324 str,
325 SSL_alert_type_string_long(ret),
326 SSL_alert_desc_string_long(ret));
327 }
328 else if (where & SSL_CB_EXIT)
329 {
330 if (ret == 0)
331 BIO_printf(bio_err,"%s:failed in %s\n",
332 str,SSL_state_string_long(s));
333 else if (ret < 0)
334 {
335 BIO_printf(bio_err,"%s:error in %s\n",
336 str,SSL_state_string_long(s));
337 }
338 }
339 }
340
a661b653
BM		 341
342void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
343 {
344 BIO *bio = arg;
345 const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
346
347 str_write_p = write_p ? ">>>" : "<<<";
348
349 switch (version)
350 {
351 case SSL2_VERSION:
352 str_version = "SSL 2.0";
353 break;
354 case SSL3_VERSION:
355 str_version = "SSL 3.0 ";
356 break;
357 case TLS1_VERSION:
358 str_version = "TLS 1.0 ";
359 break;
48435b20
DSH		 360 case TLS1_1_VERSION:
361 str_version = "TLS 1.1 ";
362 break;
bdfa4ff9
DSH		 363 case DTLS1_VERSION:
364 str_version = "DTLS 1.0 ";
365 break;
366 case DTLS1_BAD_VER:
367 str_version = "DTLS 1.0 (bad) ";
368 break;
a661b653
BM		 369 default:
370 str_version = "???";
371 }
372
29e0c30c
BM		 373 if (version == SSL2_VERSION)
374 {
375 str_details1 = "???";
376
377 if (len > 0)
378 {
7d727231 379 switch (((const unsigned char*)buf)[0])
29e0c30c
BM		 380 {
381 case 0:
382 str_details1 = ", ERROR:";
383 str_details2 = " ???";
384 if (len >= 3)
385 {
7d727231 386 unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
29e0c30c
BM		 387
388 switch (err)
389 {
390 case 0x0001:
391 str_details2 = " NO-CIPHER-ERROR";
392 break;
393 case 0x0002:
394 str_details2 = " NO-CERTIFICATE-ERROR";
395 break;
396 case 0x0004:
397 str_details2 = " BAD-CERTIFICATE-ERROR";
398 break;
399 case 0x0006:
400 str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
401 break;
402 }
403 }
404
405 break;
406 case 1:
407 str_details1 = ", CLIENT-HELLO";
408 break;
409 case 2:
410 str_details1 = ", CLIENT-MASTER-KEY";
411 break;
412 case 3:
413 str_details1 = ", CLIENT-FINISHED";
414 break;
415 case 4:
416 str_details1 = ", SERVER-HELLO";
417 break;
418 case 5:
419 str_details1 = ", SERVER-VERIFY";
420 break;
421 case 6:
422 str_details1 = ", SERVER-FINISHED";
423 break;
424 case 7:
425 str_details1 = ", REQUEST-CERTIFICATE";
426 break;
427 case 8:
428 str_details1 = ", CLIENT-CERTIFICATE";
429 break;
430 }
431 }
432 }
433
bdfa4ff9
DSH		 434 if (version == SSL3_VERSION ||
435 version == TLS1_VERSION ||
436 version == DTLS1_VERSION ||
437 version == DTLS1_BAD_VER)
a661b653
BM		 438 {
439 switch (content_type)
440 {
441 case 20:
442 str_content_type = "ChangeCipherSpec";
443 break;
444 case 21:
445 str_content_type = "Alert";
446 break;
447 case 22:
448 str_content_type = "Handshake";
449 break;
450 }
451
452 if (content_type == 21) /* Alert */
453 {
454 str_details1 = ", ???";
455
456 if (len == 2)
457 {
7d727231 458 switch (((const unsigned char*)buf)[0])
a661b653
BM		 459 {
460 case 1:
461 str_details1 = ", warning";
462 break;
463 case 2:
464 str_details1 = ", fatal";
465 break;
466 }
467
468 str_details2 = " ???";
7d727231 469 switch (((const unsigned char*)buf)[1])
a661b653
BM		 470 {
471 case 0:
472 str_details2 = " close_notify";
473 break;
474 case 10:
475 str_details2 = " unexpected_message";
476 break;
477 case 20:
478 str_details2 = " bad_record_mac";
479 break;
480 case 21:
481 str_details2 = " decryption_failed";
482 break;
483 case 22:
484 str_details2 = " record_overflow";
485 break;
486 case 30:
487 str_details2 = " decompression_failure";
488 break;
489 case 40:
490 str_details2 = " handshake_failure";
491 break;
492 case 42:
493 str_details2 = " bad_certificate";
494 break;
495 case 43:
496 str_details2 = " unsupported_certificate";
497 break;
498 case 44:
499 str_details2 = " certificate_revoked";
500 break;
501 case 45:
502 str_details2 = " certificate_expired";
503 break;
504 case 46:
505 str_details2 = " certificate_unknown";
506 break;
507 case 47:
508 str_details2 = " illegal_parameter";
509 break;
510 case 48:
511 str_details2 = " unknown_ca";
512 break;
513 case 49:
514 str_details2 = " access_denied";
515 break;
516 case 50:
517 str_details2 = " decode_error";
518 break;
519 case 51:
520 str_details2 = " decrypt_error";
521 break;
522 case 60:
523 str_details2 = " export_restriction";
524 break;
525 case 70:
526 str_details2 = " protocol_version";
527 break;
528 case 71:
529 str_details2 = " insufficient_security";
530 break;
531 case 80:
532 str_details2 = " internal_error";
533 break;
534 case 90:
535 str_details2 = " user_canceled";
536 break;
537 case 100:
538 str_details2 = " no_renegotiation";
539 break;
241520e6
BM		 540 case 110:
541 str_details2 = " unsupported_extension";
542 break;
543 case 111:
544 str_details2 = " certificate_unobtainable";
545 break;
546 case 112:
547 str_details2 = " unrecognized_name";
548 break;
549 case 113:
550 str_details2 = " bad_certificate_status_response";
551 break;
552 case 114:
553 str_details2 = " bad_certificate_hash_value";
554 break;
0c58d22a
DSH		 555 case 115:
556 str_details2 = " unknown_psk_identity";
557 break;
a661b653
BM		 558 }
559 }
560 }
561
562 if (content_type == 22) /* Handshake */
563 {
564 str_details1 = "???";
565
566 if (len > 0)
567 {
7d727231 568 switch (((const unsigned char*)buf)[0])
a661b653
BM		 569 {
570 case 0:
571 str_details1 = ", HelloRequest";
572 break;
573 case 1:
574 str_details1 = ", ClientHello";
575 break;
576 case 2:
577 str_details1 = ", ServerHello";
578 break;
bdfa4ff9
DSH		 579 case 3:
580 str_details1 = ", HelloVerifyRequest";
581 break;
a661b653
BM		 582 case 11:
583 str_details1 = ", Certificate";
584 break;
585 case 12:
586 str_details1 = ", ServerKeyExchange";
587 break;
588 case 13:
589 str_details1 = ", CertificateRequest";
590 break;
591 case 14:
592 str_details1 = ", ServerHelloDone";
593 break;
594 case 15:
595 str_details1 = ", CertificateVerify";
596 break;
597 case 16:
598 str_details1 = ", ClientKeyExchange";
599 break;
600 case 20:
601 str_details1 = ", Finished";
602 break;
603 }
604 }
605 }
4817504d
DSH		 606
607#ifndef OPENSSL_NO_HEARTBEATS
608 if (content_type == 24) /* Heartbeat */
609 {
610 str_details1 = ", Heartbeat";
611
612 if (len > 0)
613 {
614 switch (((const unsigned char*)buf)[0])
615 {
616 case 1:
617 str_details1 = ", HeartbeatRequest";
618 break;
619 case 2:
620 str_details1 = ", HeartbeatResponse";
621 break;
622 }
623 }
624 }
625#endif
a661b653
BM		 626 }
627
628 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, str_content_type, (unsigned long)len, str_details1, str_details2);
629
630 if (len > 0)
631 {
632 size_t num, i;
633
634 BIO_printf(bio, " ");
635 num = len;
636#if 0
637 if (num > 16)
638 num = 16;
639#endif
640 for (i = 0; i < num; i++)
641 {
642 if (i % 16 == 0 && i > 0)
643 BIO_printf(bio, "\n ");
7d727231 644 BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
a661b653
BM		 645 }
646 if (i < len)
647 BIO_printf(bio, " ...");
648 BIO_printf(bio, "\n");
649 }
710069c1 650 (void)BIO_flush(bio);
a661b653 651 }
6434abbf
DSH		 652
653void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
654 unsigned char *data, int len,
655 void *arg)
656 {
657 BIO *bio = arg;
658 char *extname;
659
660 switch(type)
661 {
662 case TLSEXT_TYPE_server_name:
663 extname = "server name";
664 break;
665
666 case TLSEXT_TYPE_max_fragment_length:
667 extname = "max fragment length";
668 break;
669
670 case TLSEXT_TYPE_client_certificate_url:
671 extname = "client certificate URL";
672 break;
673
674 case TLSEXT_TYPE_trusted_ca_keys:
675 extname = "trusted CA keys";
676 break;
677
678 case TLSEXT_TYPE_truncated_hmac:
679 extname = "truncated HMAC";
680 break;
681
682 case TLSEXT_TYPE_status_request:
683 extname = "status request";
684 break;
685
686 case TLSEXT_TYPE_elliptic_curves:
687 extname = "elliptic curves";
688 break;
689
690 case TLSEXT_TYPE_ec_point_formats:
691 extname = "EC point formats";
692 break;
693
694 case TLSEXT_TYPE_session_ticket:
695 extname = "server ticket";
696 break;
697
860c3dd1
DSH		 698 case TLSEXT_TYPE_renegotiate:
699 extname = "renegotiate";
700 break;
701
7409d7ad
DSH		 702 case TLSEXT_TYPE_signature_algorithms:
703 extname = "signature algorithms";
704 break;
705
761772d7
BM		 706#ifdef TLSEXT_TYPE_opaque_prf_input
707 case TLSEXT_TYPE_opaque_prf_input:
708 extname = "opaque PRF input";
709 break;
710#endif
6434abbf
DSH		 711
712 default:
713 extname = "unknown";
714 break;
715
716 }
717
718 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
719 client_server ? "server": "client",
720 extname, type, len);
710069c1 721 BIO_dump(bio, (char *)data, len);
367eb1f1 722 (void)BIO_flush(bio);
6434abbf 723 }
07a9d1a2
DSH		 724
725int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
726 {
727 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
728 unsigned int length, resultlength;
636b6b45 729 union {
cba9ffc3 730 struct sockaddr sa;
636b6b45 731 struct sockaddr_in s4;
cba9ffc3
AP		 732#if OPENSSL_USE_IPV6
733 struct sockaddr_in6 s6;
636b6b45 734#endif
cba9ffc3 735 } peer;
636b6b45 736
07a9d1a2
DSH		 737 /* Initialize a random secret */
738 if (!cookie_initialized)
739 {
740 if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
741 {
742 BIO_printf(bio_err,"error setting random cookie secret\n");
743 return 0;
744 }
745 cookie_initialized = 1;
746 }
747
748 /* Read peer information */
749 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
750
751 /* Create buffer with peer's address and port */
636b6b45 752 length = 0;
cba9ffc3 753 switch (peer.sa.sa_family)
636b6b45
DSH		 754 {
755 case AF_INET:
756 length += sizeof(struct in_addr);
be456366 757 length += sizeof(peer.s4.sin_port);
636b6b45 758 break;
cba9ffc3 759#if OPENSSL_USE_IPV6
636b6b45
DSH		 760 case AF_INET6:
761 length += sizeof(struct in6_addr);
be456366 762 length += sizeof(peer.s6.sin6_port);
636b6b45 763 break;
cba9ffc3 764#endif
636b6b45
DSH		 765 default:
766 OPENSSL_assert(0);
767 break;
768 }
07a9d1a2
DSH		 769 buffer = OPENSSL_malloc(length);
770
771 if (buffer == NULL)
772 {
773 BIO_printf(bio_err,"out of memory\n");
774 return 0;
775 }
636b6b45 776
cba9ffc3 777 switch (peer.sa.sa_family)
636b6b45
DSH		 778 {
779 case AF_INET:
780 memcpy(buffer,
781 &peer.s4.sin_port,
be456366
DSH		 782 sizeof(peer.s4.sin_port));
783 memcpy(buffer + sizeof(peer.s4.sin_port),
636b6b45
DSH		 784 &peer.s4.sin_addr,
785 sizeof(struct in_addr));
786 break;
cba9ffc3 787#if OPENSSL_USE_IPV6
636b6b45
DSH		 788 case AF_INET6:
789 memcpy(buffer,
790 &peer.s6.sin6_port,
be456366
DSH		 791 sizeof(peer.s6.sin6_port));
792 memcpy(buffer + sizeof(peer.s6.sin6_port),
636b6b45
DSH		 793 &peer.s6.sin6_addr,
794 sizeof(struct in6_addr));
795 break;
cba9ffc3 796#endif
636b6b45
DSH		 797 default:
798 OPENSSL_assert(0);
799 break;
800 }
07a9d1a2
DSH		 801
802 /* Calculate HMAC of buffer using the secret */
803 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
804 buffer, length, result, &resultlength);
805 OPENSSL_free(buffer);
806
807 memcpy(cookie, result, resultlength);
808 *cookie_len = resultlength;
809
810 return 1;
811 }
812
813int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
814 {
815 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
816 unsigned int length, resultlength;
636b6b45 817 union {
cba9ffc3 818 struct sockaddr sa;
636b6b45 819 struct sockaddr_in s4;
cba9ffc3
AP		 820#if OPENSSL_USE_IPV6
821 struct sockaddr_in6 s6;
636b6b45 822#endif
cba9ffc3 823 } peer;
636b6b45 824
07a9d1a2
DSH		 825 /* If secret isn't initialized yet, the cookie can't be valid */
826 if (!cookie_initialized)
827 return 0;
828
829 /* Read peer information */
830 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
831
832 /* Create buffer with peer's address and port */
636b6b45 833 length = 0;
cba9ffc3 834 switch (peer.sa.sa_family)
636b6b45
DSH		 835 {
836 case AF_INET:
837 length += sizeof(struct in_addr);
be456366 838 length += sizeof(peer.s4.sin_port);
636b6b45 839 break;
cba9ffc3 840#if OPENSSL_USE_IPV6
636b6b45
DSH		 841 case AF_INET6:
842 length += sizeof(struct in6_addr);
be456366 843 length += sizeof(peer.s6.sin6_port);
636b6b45 844 break;
cba9ffc3 845#endif
636b6b45
DSH		 846 default:
847 OPENSSL_assert(0);
848 break;
849 }
07a9d1a2
DSH		 850 buffer = OPENSSL_malloc(length);
851
852 if (buffer == NULL)
853 {
854 BIO_printf(bio_err,"out of memory\n");
855 return 0;
856 }
636b6b45 857
cba9ffc3 858 switch (peer.sa.sa_family)
636b6b45
DSH		 859 {
860 case AF_INET:
861 memcpy(buffer,
862 &peer.s4.sin_port,
be456366
DSH		 863 sizeof(peer.s4.sin_port));
864 memcpy(buffer + sizeof(peer.s4.sin_port),
636b6b45
DSH		 865 &peer.s4.sin_addr,
866 sizeof(struct in_addr));
867 break;
cba9ffc3 868#if OPENSSL_USE_IPV6
636b6b45
DSH		 869 case AF_INET6:
870 memcpy(buffer,
871 &peer.s6.sin6_port,
be456366
DSH		 872 sizeof(peer.s6.sin6_port));
873 memcpy(buffer + sizeof(peer.s6.sin6_port),
636b6b45
DSH		 874 &peer.s6.sin6_addr,
875 sizeof(struct in6_addr));
876 break;
cba9ffc3 877#endif
636b6b45
DSH		 878 default:
879 OPENSSL_assert(0);
880 break;
881 }
07a9d1a2
DSH		 882
883 /* Calculate HMAC of buffer using the secret */
884 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
885 buffer, length, result, &resultlength);
886 OPENSSL_free(buffer);
636b6b45 887
07a9d1a2
DSH		 888 if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
889 return 1;
890
891 return 0;
892 }
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