Import OpenSSL-1.0.0g.
[dragonfly.git] / crypto / openssl / apps / s_cb.c
CommitLineData
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1/* apps/s_cb.c - callback functions used by s_client, s_server, and s_time */
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/* ====================================================================
919b01cc 59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
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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#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
119#include <openssl/err.h>
5f042374 120#include <openssl/rand.h>
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121#include <openssl/x509.h>
122#include <openssl/ssl.h>
123#include "s_apps.h"
124
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125#define COOKIE_SECRET_LENGTH 16
126
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127int verify_depth=0;
128int verify_error=X509_V_OK;
919b01cc 129int verify_return_error=0;
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130unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
131int cookie_initialized=0;
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132
133int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
134 {
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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
919b01cc
PA
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");
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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 {
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PA
157 if (!verify_return_error)
158 ok=1;
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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 }
919b01cc 167 switch (err)
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168 {
169 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
919b01cc
PA
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");
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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=");
919b01cc 178 ASN1_TIME_print(bio_err,X509_get_notBefore(err_cert));
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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=");
919b01cc 184 ASN1_TIME_print(bio_err,X509_get_notAfter(err_cert));
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185 BIO_printf(bio_err,"\n");
186 break;
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PA
187 case X509_V_ERR_NO_EXPLICIT_POLICY:
188 policies_print(bio_err, ctx);
189 break;
56276539 190 }
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PA
191 if (err == X509_V_OK && ok == 2)
192 policies_print(bio_err, ctx);
193
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194 BIO_printf(bio_err,"verify return:%d\n",ok);
195 return(ok);
196 }
197
198int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
199 {
200 if (cert_file != NULL)
201 {
202 /*
203 SSL *ssl;
204 X509 *x509;
205 */
206
207 if (SSL_CTX_use_certificate_file(ctx,cert_file,
208 SSL_FILETYPE_PEM) <= 0)
209 {
210 BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file);
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 {
218 BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file);
219 ERR_print_errors(bio_err);
220 return(0);
221 }
222
223 /*
224 In theory this is no longer needed
225 ssl=SSL_new(ctx);
226 x509=SSL_get_certificate(ssl);
227
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 }
235 SSL_free(ssl);
236 */
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
253int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key)
254 {
255 if (cert == NULL)
256 return 1;
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
281long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
919b01cc 282 int argi, long argl, long ret)
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SS
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 {
919b01cc
PA
291 BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
292 (void *)bio,argp,(unsigned long)argi,ret,ret);
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293 BIO_dump(out,argp,(int)ret);
294 return(ret);
295 }
296 else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
297 {
919b01cc
PA
298 BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
299 (void *)bio,argp,(unsigned long)argi,ret,ret);
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300 BIO_dump(out,argp,(int)ret);
301 }
302 return(ret);
303 }
304
305void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
306 {
307 const char *str;
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
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;
5f042374
PA
360 case DTLS1_VERSION:
361 str_version = "DTLS 1.0 ";
362 break;
363 case DTLS1_BAD_VER:
364 str_version = "DTLS 1.0 (bad) ";
365 break;
919b01cc
PA
366 default:
367 str_version = "???";
56276539
SS
368 }
369
370 if (version == SSL2_VERSION)
371 {
372 str_details1 = "???";
373
374 if (len > 0)
375 {
376 switch (((const unsigned char*)buf)[0])
377 {
378 case 0:
379 str_details1 = ", ERROR:";
380 str_details2 = " ???";
381 if (len >= 3)
382 {
383 unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
384
385 switch (err)
386 {
387 case 0x0001:
388 str_details2 = " NO-CIPHER-ERROR";
389 break;
390 case 0x0002:
391 str_details2 = " NO-CERTIFICATE-ERROR";
392 break;
393 case 0x0004:
394 str_details2 = " BAD-CERTIFICATE-ERROR";
395 break;
396 case 0x0006:
397 str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
398 break;
399 }
400 }
401
402 break;
403 case 1:
404 str_details1 = ", CLIENT-HELLO";
405 break;
406 case 2:
407 str_details1 = ", CLIENT-MASTER-KEY";
408 break;
409 case 3:
410 str_details1 = ", CLIENT-FINISHED";
411 break;
412 case 4:
413 str_details1 = ", SERVER-HELLO";
414 break;
415 case 5:
416 str_details1 = ", SERVER-VERIFY";
417 break;
418 case 6:
419 str_details1 = ", SERVER-FINISHED";
420 break;
421 case 7:
422 str_details1 = ", REQUEST-CERTIFICATE";
423 break;
424 case 8:
425 str_details1 = ", CLIENT-CERTIFICATE";
426 break;
427 }
428 }
429 }
430
5f042374
PA
431 if (version == SSL3_VERSION ||
432 version == TLS1_VERSION ||
433 version == DTLS1_VERSION ||
434 version == DTLS1_BAD_VER)
56276539
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435 {
436 switch (content_type)
437 {
438 case 20:
439 str_content_type = "ChangeCipherSpec";
440 break;
441 case 21:
442 str_content_type = "Alert";
443 break;
444 case 22:
445 str_content_type = "Handshake";
446 break;
447 }
448
449 if (content_type == 21) /* Alert */
450 {
451 str_details1 = ", ???";
452
453 if (len == 2)
454 {
455 switch (((const unsigned char*)buf)[0])
456 {
457 case 1:
458 str_details1 = ", warning";
459 break;
460 case 2:
461 str_details1 = ", fatal";
462 break;
463 }
464
465 str_details2 = " ???";
466 switch (((const unsigned char*)buf)[1])
467 {
468 case 0:
469 str_details2 = " close_notify";
470 break;
471 case 10:
472 str_details2 = " unexpected_message";
473 break;
474 case 20:
475 str_details2 = " bad_record_mac";
476 break;
477 case 21:
478 str_details2 = " decryption_failed";
479 break;
480 case 22:
481 str_details2 = " record_overflow";
482 break;
483 case 30:
484 str_details2 = " decompression_failure";
485 break;
486 case 40:
487 str_details2 = " handshake_failure";
488 break;
489 case 42:
490 str_details2 = " bad_certificate";
491 break;
492 case 43:
493 str_details2 = " unsupported_certificate";
494 break;
495 case 44:
496 str_details2 = " certificate_revoked";
497 break;
498 case 45:
499 str_details2 = " certificate_expired";
500 break;
501 case 46:
502 str_details2 = " certificate_unknown";
503 break;
504 case 47:
505 str_details2 = " illegal_parameter";
506 break;
507 case 48:
508 str_details2 = " unknown_ca";
509 break;
510 case 49:
511 str_details2 = " access_denied";
512 break;
513 case 50:
514 str_details2 = " decode_error";
515 break;
516 case 51:
517 str_details2 = " decrypt_error";
518 break;
519 case 60:
520 str_details2 = " export_restriction";
521 break;
522 case 70:
523 str_details2 = " protocol_version";
524 break;
525 case 71:
526 str_details2 = " insufficient_security";
527 break;
528 case 80:
529 str_details2 = " internal_error";
530 break;
531 case 90:
532 str_details2 = " user_canceled";
533 break;
534 case 100:
535 str_details2 = " no_renegotiation";
536 break;
919b01cc
PA
537 case 110:
538 str_details2 = " unsupported_extension";
539 break;
540 case 111:
541 str_details2 = " certificate_unobtainable";
542 break;
543 case 112:
544 str_details2 = " unrecognized_name";
545 break;
546 case 113:
547 str_details2 = " bad_certificate_status_response";
548 break;
549 case 114:
550 str_details2 = " bad_certificate_hash_value";
551 break;
56276539
SS
552 }
553 }
554 }
555
556 if (content_type == 22) /* Handshake */
557 {
558 str_details1 = "???";
559
560 if (len > 0)
561 {
562 switch (((const unsigned char*)buf)[0])
563 {
564 case 0:
565 str_details1 = ", HelloRequest";
566 break;
567 case 1:
568 str_details1 = ", ClientHello";
569 break;
570 case 2:
571 str_details1 = ", ServerHello";
572 break;
919b01cc
PA
573 case 3:
574 str_details1 = ", HelloVerifyRequest";
575 break;
56276539
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576 case 11:
577 str_details1 = ", Certificate";
578 break;
579 case 12:
580 str_details1 = ", ServerKeyExchange";
581 break;
582 case 13:
583 str_details1 = ", CertificateRequest";
584 break;
585 case 14:
586 str_details1 = ", ServerHelloDone";
587 break;
588 case 15:
589 str_details1 = ", CertificateVerify";
590 break;
591 case 16:
592 str_details1 = ", ClientKeyExchange";
593 break;
594 case 20:
595 str_details1 = ", Finished";
596 break;
597 }
598 }
599 }
600 }
601
602 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);
603
604 if (len > 0)
605 {
606 size_t num, i;
607
608 BIO_printf(bio, " ");
609 num = len;
610#if 0
611 if (num > 16)
612 num = 16;
613#endif
614 for (i = 0; i < num; i++)
615 {
616 if (i % 16 == 0 && i > 0)
617 BIO_printf(bio, "\n ");
618 BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
619 }
620 if (i < len)
621 BIO_printf(bio, " ...");
622 BIO_printf(bio, "\n");
623 }
e6bc27f5
PA
624 (void)BIO_flush(bio);
625 }
626
627void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
628 unsigned char *data, int len,
629 void *arg)
630 {
631 BIO *bio = arg;
632 char *extname;
633
634 switch(type)
635 {
636 case TLSEXT_TYPE_server_name:
637 extname = "server name";
638 break;
639
640 case TLSEXT_TYPE_max_fragment_length:
641 extname = "max fragment length";
642 break;
643
644 case TLSEXT_TYPE_client_certificate_url:
645 extname = "client certificate URL";
646 break;
647
648 case TLSEXT_TYPE_trusted_ca_keys:
649 extname = "trusted CA keys";
650 break;
651
652 case TLSEXT_TYPE_truncated_hmac:
653 extname = "truncated HMAC";
654 break;
655
656 case TLSEXT_TYPE_status_request:
657 extname = "status request";
658 break;
659
660 case TLSEXT_TYPE_elliptic_curves:
661 extname = "elliptic curves";
662 break;
663
664 case TLSEXT_TYPE_ec_point_formats:
665 extname = "EC point formats";
666 break;
667
668 case TLSEXT_TYPE_session_ticket:
669 extname = "server ticket";
670 break;
671
5f042374
PA
672 case TLSEXT_TYPE_renegotiate:
673 extname = "renegotiate";
674 break;
e6bc27f5 675
919b01cc
PA
676#ifdef TLSEXT_TYPE_opaque_prf_input
677 case TLSEXT_TYPE_opaque_prf_input:
678 extname = "opaque PRF input";
679 break;
680#endif
681
e6bc27f5
PA
682 default:
683 extname = "unknown";
684 break;
685
686 }
687
688 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
689 client_server ? "server": "client",
690 extname, type, len);
691 BIO_dump(bio, (char *)data, len);
692 (void)BIO_flush(bio);
56276539 693 }
5f042374
PA
694
695int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
696 {
697 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
698 unsigned int length, resultlength;
919b01cc
PA
699 union {
700 struct sockaddr sa;
701 struct sockaddr_in s4;
702#if OPENSSL_USE_IPV6
703 struct sockaddr_in6 s6;
704#endif
705 } peer;
706
5f042374
PA
707 /* Initialize a random secret */
708 if (!cookie_initialized)
709 {
710 if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
711 {
712 BIO_printf(bio_err,"error setting random cookie secret\n");
713 return 0;
714 }
715 cookie_initialized = 1;
716 }
717
718 /* Read peer information */
719 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
720
721 /* Create buffer with peer's address and port */
919b01cc
PA
722 length = 0;
723 switch (peer.sa.sa_family)
724 {
725 case AF_INET:
726 length += sizeof(struct in_addr);
727 length += sizeof(peer.s4.sin_port);
728 break;
729#if OPENSSL_USE_IPV6
730 case AF_INET6:
731 length += sizeof(struct in6_addr);
732 length += sizeof(peer.s6.sin6_port);
733 break;
734#endif
735 default:
736 OPENSSL_assert(0);
737 break;
738 }
5f042374
PA
739 buffer = OPENSSL_malloc(length);
740
741 if (buffer == NULL)
742 {
743 BIO_printf(bio_err,"out of memory\n");
744 return 0;
745 }
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746
747 switch (peer.sa.sa_family)
748 {
749 case AF_INET:
750 memcpy(buffer,
751 &peer.s4.sin_port,
752 sizeof(peer.s4.sin_port));
753 memcpy(buffer + sizeof(peer.s4.sin_port),
754 &peer.s4.sin_addr,
755 sizeof(struct in_addr));
756 break;
757#if OPENSSL_USE_IPV6
758 case AF_INET6:
759 memcpy(buffer,
760 &peer.s6.sin6_port,
761 sizeof(peer.s6.sin6_port));
762 memcpy(buffer + sizeof(peer.s6.sin6_port),
763 &peer.s6.sin6_addr,
764 sizeof(struct in6_addr));
765 break;
766#endif
767 default:
768 OPENSSL_assert(0);
769 break;
770 }
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771
772 /* Calculate HMAC of buffer using the secret */
773 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
774 buffer, length, result, &resultlength);
775 OPENSSL_free(buffer);
776
777 memcpy(cookie, result, resultlength);
778 *cookie_len = resultlength;
779
780 return 1;
781 }
782
783int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
784 {
785 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
786 unsigned int length, resultlength;
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787 union {
788 struct sockaddr sa;
789 struct sockaddr_in s4;
790#if OPENSSL_USE_IPV6
791 struct sockaddr_in6 s6;
792#endif
793 } peer;
794
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795 /* If secret isn't initialized yet, the cookie can't be valid */
796 if (!cookie_initialized)
797 return 0;
798
799 /* Read peer information */
800 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
801
802 /* Create buffer with peer's address and port */
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803 length = 0;
804 switch (peer.sa.sa_family)
805 {
806 case AF_INET:
807 length += sizeof(struct in_addr);
808 length += sizeof(peer.s4.sin_port);
809 break;
810#if OPENSSL_USE_IPV6
811 case AF_INET6:
812 length += sizeof(struct in6_addr);
813 length += sizeof(peer.s6.sin6_port);
814 break;
815#endif
816 default:
817 OPENSSL_assert(0);
818 break;
819 }
820 buffer = OPENSSL_malloc(length);
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821
822 if (buffer == NULL)
823 {
824 BIO_printf(bio_err,"out of memory\n");
825 return 0;
826 }
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827
828 switch (peer.sa.sa_family)
829 {
830 case AF_INET:
831 memcpy(buffer,
832 &peer.s4.sin_port,
833 sizeof(peer.s4.sin_port));
834 memcpy(buffer + sizeof(peer.s4.sin_port),
835 &peer.s4.sin_addr,
836 sizeof(struct in_addr));
837 break;
838#if OPENSSL_USE_IPV6
839 case AF_INET6:
840 memcpy(buffer,
841 &peer.s6.sin6_port,
842 sizeof(peer.s6.sin6_port));
843 memcpy(buffer + sizeof(peer.s6.sin6_port),
844 &peer.s6.sin6_addr,
845 sizeof(struct in6_addr));
846 break;
847#endif
848 default:
849 OPENSSL_assert(0);
850 break;
851 }
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852
853 /* Calculate HMAC of buffer using the secret */
854 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
855 buffer, length, result, &resultlength);
856 OPENSSL_free(buffer);
919b01cc 857
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858 if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
859 return 1;
860
861 return 0;
862 }