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 | /* ==================================================================== |
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 | #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> |
120 | #include <openssl/rand.h> |
121 | #include <openssl/x509.h> |
122 | #include <openssl/ssl.h> |
123 | #include "s_apps.h" |
124 | |
125 | #define COOKIE_SECRET_LENGTH 16 |
126 | |
127 | int verify_depth=0; |
128 | int verify_error=X509_V_OK; |
129 | int verify_return_error=0; |
130 | unsigned char cookie_secret[COOKIE_SECRET_LENGTH]; |
131 | int cookie_initialized=0; |
132 | |
133 | int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx) |
134 | { |
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 | |
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" ); |
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 | { |
157 | if (!verify_return_error) |
158 | ok=1; |
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 | } |
167 | switch (err) |
168 | { |
169 | case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: |
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" ); |
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=" ); |
178 | ASN1_TIME_print(bio_err,X509_get_notBefore(err_cert)); |
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=" ); |
184 | ASN1_TIME_print(bio_err,X509_get_notAfter(err_cert)); |
185 | BIO_printf(bio_err,"\n" ); |
186 | break; |
187 | case X509_V_ERR_NO_EXPLICIT_POLICY: |
188 | policies_print(bio_err, ctx); |
189 | break; |
190 | } |
191 | if (err == X509_V_OK && ok == 2) |
192 | policies_print(bio_err, ctx); |
193 | |
194 | BIO_printf(bio_err,"verify return:%d\n" ,ok); |
195 | return(ok); |
196 | } |
197 | |
198 | int 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 | |
253 | int 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 | |
281 | long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp, |
282 | int argi, long argl, long ret) |
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 | { |
291 | BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n" , |
292 | (void *)bio,argp,(unsigned long)argi,ret,ret); |
293 | BIO_dump(out,argp,(int)ret); |
294 | return(ret); |
295 | } |
296 | else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN)) |
297 | { |
298 | BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n" , |
299 | (void *)bio,argp,(unsigned long)argi,ret,ret); |
300 | BIO_dump(out,argp,(int)ret); |
301 | } |
302 | return(ret); |
303 | } |
304 | |
305 | void 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 | |
342 | void 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; |
360 | case TLS1_1_VERSION: |
361 | str_version = "TLS 1.1 " ; |
362 | break; |
363 | case TLS1_2_VERSION: |
364 | str_version = "TLS 1.2 " ; |
365 | break; |
366 | case DTLS1_VERSION: |
367 | str_version = "DTLS 1.0 " ; |
368 | break; |
369 | case DTLS1_BAD_VER: |
370 | str_version = "DTLS 1.0 (bad) " ; |
371 | break; |
372 | default: |
373 | str_version = "???" ; |
374 | } |
375 | |
376 | if (version == SSL2_VERSION) |
377 | { |
378 | str_details1 = "???" ; |
379 | |
380 | if (len > 0) |
381 | { |
382 | switch (((const unsigned char*)buf)[0]) |
383 | { |
384 | case 0: |
385 | str_details1 = ", ERROR:" ; |
386 | str_details2 = " ???" ; |
387 | if (len >= 3) |
388 | { |
389 | unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2]; |
390 | |
391 | switch (err) |
392 | { |
393 | case 0x0001: |
394 | str_details2 = " NO-CIPHER-ERROR" ; |
395 | break; |
396 | case 0x0002: |
397 | str_details2 = " NO-CERTIFICATE-ERROR" ; |
398 | break; |
399 | case 0x0004: |
400 | str_details2 = " BAD-CERTIFICATE-ERROR" ; |
401 | break; |
402 | case 0x0006: |
403 | str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR" ; |
404 | break; |
405 | } |
406 | } |
407 | |
408 | break; |
409 | case 1: |
410 | str_details1 = ", CLIENT-HELLO" ; |
411 | break; |
412 | case 2: |
413 | str_details1 = ", CLIENT-MASTER-KEY" ; |
414 | break; |
415 | case 3: |
416 | str_details1 = ", CLIENT-FINISHED" ; |
417 | break; |
418 | case 4: |
419 | str_details1 = ", SERVER-HELLO" ; |
420 | break; |
421 | case 5: |
422 | str_details1 = ", SERVER-VERIFY" ; |
423 | break; |
424 | case 6: |
425 | str_details1 = ", SERVER-FINISHED" ; |
426 | break; |
427 | case 7: |
428 | str_details1 = ", REQUEST-CERTIFICATE" ; |
429 | break; |
430 | case 8: |
431 | str_details1 = ", CLIENT-CERTIFICATE" ; |
432 | break; |
433 | } |
434 | } |
435 | } |
436 | |
437 | if (version == SSL3_VERSION || |
438 | version == TLS1_VERSION || |
439 | version == TLS1_1_VERSION || |
440 | version == TLS1_2_VERSION || |
441 | version == DTLS1_VERSION || |
442 | version == DTLS1_BAD_VER) |
443 | { |
444 | switch (content_type) |
445 | { |
446 | case 20: |
447 | str_content_type = "ChangeCipherSpec" ; |
448 | break; |
449 | case 21: |
450 | str_content_type = "Alert" ; |
451 | break; |
452 | case 22: |
453 | str_content_type = "Handshake" ; |
454 | break; |
455 | } |
456 | |
457 | if (content_type == 21) /* Alert */ |
458 | { |
459 | str_details1 = ", ???" ; |
460 | |
461 | if (len == 2) |
462 | { |
463 | switch (((const unsigned char*)buf)[0]) |
464 | { |
465 | case 1: |
466 | str_details1 = ", warning" ; |
467 | break; |
468 | case 2: |
469 | str_details1 = ", fatal" ; |
470 | break; |
471 | } |
472 | |
473 | str_details2 = " ???" ; |
474 | switch (((const unsigned char*)buf)[1]) |
475 | { |
476 | case 0: |
477 | str_details2 = " close_notify" ; |
478 | break; |
479 | case 10: |
480 | str_details2 = " unexpected_message" ; |
481 | break; |
482 | case 20: |
483 | str_details2 = " bad_record_mac" ; |
484 | break; |
485 | case 21: |
486 | str_details2 = " decryption_failed" ; |
487 | break; |
488 | case 22: |
489 | str_details2 = " record_overflow" ; |
490 | break; |
491 | case 30: |
492 | str_details2 = " decompression_failure" ; |
493 | break; |
494 | case 40: |
495 | str_details2 = " handshake_failure" ; |
496 | break; |
497 | case 42: |
498 | str_details2 = " bad_certificate" ; |
499 | break; |
500 | case 43: |
501 | str_details2 = " unsupported_certificate" ; |
502 | break; |
503 | case 44: |
504 | str_details2 = " certificate_revoked" ; |
505 | break; |
506 | case 45: |
507 | str_details2 = " certificate_expired" ; |
508 | break; |
509 | case 46: |
510 | str_details2 = " certificate_unknown" ; |
511 | break; |
512 | case 47: |
513 | str_details2 = " illegal_parameter" ; |
514 | break; |
515 | case 48: |
516 | str_details2 = " unknown_ca" ; |
517 | break; |
518 | case 49: |
519 | str_details2 = " access_denied" ; |
520 | break; |
521 | case 50: |
522 | str_details2 = " decode_error" ; |
523 | break; |
524 | case 51: |
525 | str_details2 = " decrypt_error" ; |
526 | break; |
527 | case 60: |
528 | str_details2 = " export_restriction" ; |
529 | break; |
530 | case 70: |
531 | str_details2 = " protocol_version" ; |
532 | break; |
533 | case 71: |
534 | str_details2 = " insufficient_security" ; |
535 | break; |
536 | case 80: |
537 | str_details2 = " internal_error" ; |
538 | break; |
539 | case 90: |
540 | str_details2 = " user_canceled" ; |
541 | break; |
542 | case 100: |
543 | str_details2 = " no_renegotiation" ; |
544 | break; |
545 | case 110: |
546 | str_details2 = " unsupported_extension" ; |
547 | break; |
548 | case 111: |
549 | str_details2 = " certificate_unobtainable" ; |
550 | break; |
551 | case 112: |
552 | str_details2 = " unrecognized_name" ; |
553 | break; |
554 | case 113: |
555 | str_details2 = " bad_certificate_status_response" ; |
556 | break; |
557 | case 114: |
558 | str_details2 = " bad_certificate_hash_value" ; |
559 | break; |
560 | case 115: |
561 | str_details2 = " unknown_psk_identity" ; |
562 | break; |
563 | } |
564 | } |
565 | } |
566 | |
567 | if (content_type == 22) /* Handshake */ |
568 | { |
569 | str_details1 = "???" ; |
570 | |
571 | if (len > 0) |
572 | { |
573 | switch (((const unsigned char*)buf)[0]) |
574 | { |
575 | case 0: |
576 | str_details1 = ", HelloRequest" ; |
577 | break; |
578 | case 1: |
579 | str_details1 = ", ClientHello" ; |
580 | break; |
581 | case 2: |
582 | str_details1 = ", ServerHello" ; |
583 | break; |
584 | case 3: |
585 | str_details1 = ", HelloVerifyRequest" ; |
586 | break; |
587 | case 11: |
588 | str_details1 = ", Certificate" ; |
589 | break; |
590 | case 12: |
591 | str_details1 = ", ServerKeyExchange" ; |
592 | break; |
593 | case 13: |
594 | str_details1 = ", CertificateRequest" ; |
595 | break; |
596 | case 14: |
597 | str_details1 = ", ServerHelloDone" ; |
598 | break; |
599 | case 15: |
600 | str_details1 = ", CertificateVerify" ; |
601 | break; |
602 | case 16: |
603 | str_details1 = ", ClientKeyExchange" ; |
604 | break; |
605 | case 20: |
606 | str_details1 = ", Finished" ; |
607 | break; |
608 | } |
609 | } |
610 | } |
611 | |
612 | #ifndef OPENSSL_NO_HEARTBEATS |
613 | if (content_type == 24) /* Heartbeat */ |
614 | { |
615 | str_details1 = ", Heartbeat" ; |
616 | |
617 | if (len > 0) |
618 | { |
619 | switch (((const unsigned char*)buf)[0]) |
620 | { |
621 | case 1: |
622 | str_details1 = ", HeartbeatRequest" ; |
623 | break; |
624 | case 2: |
625 | str_details1 = ", HeartbeatResponse" ; |
626 | break; |
627 | } |
628 | } |
629 | } |
630 | #endif |
631 | } |
632 | |
633 | 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); |
634 | |
635 | if (len > 0) |
636 | { |
637 | size_t num, i; |
638 | |
639 | BIO_printf(bio, " " ); |
640 | num = len; |
641 | #if 0 |
642 | if (num > 16) |
643 | num = 16; |
644 | #endif |
645 | for (i = 0; i < num; i++) |
646 | { |
647 | if (i % 16 == 0 && i > 0) |
648 | BIO_printf(bio, "\n " ); |
649 | BIO_printf(bio, " %02x" , ((const unsigned char*)buf)[i]); |
650 | } |
651 | if (i < len) |
652 | BIO_printf(bio, " ..." ); |
653 | BIO_printf(bio, "\n" ); |
654 | } |
655 | (void)BIO_flush(bio); |
656 | } |
657 | |
658 | void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type, |
659 | unsigned char *data, int len, |
660 | void *arg) |
661 | { |
662 | BIO *bio = arg; |
663 | char *extname; |
664 | |
665 | switch(type) |
666 | { |
667 | case TLSEXT_TYPE_server_name: |
668 | extname = "server name" ; |
669 | break; |
670 | |
671 | case TLSEXT_TYPE_max_fragment_length: |
672 | extname = "max fragment length" ; |
673 | break; |
674 | |
675 | case TLSEXT_TYPE_client_certificate_url: |
676 | extname = "client certificate URL" ; |
677 | break; |
678 | |
679 | case TLSEXT_TYPE_trusted_ca_keys: |
680 | extname = "trusted CA keys" ; |
681 | break; |
682 | |
683 | case TLSEXT_TYPE_truncated_hmac: |
684 | extname = "truncated HMAC" ; |
685 | break; |
686 | |
687 | case TLSEXT_TYPE_status_request: |
688 | extname = "status request" ; |
689 | break; |
690 | |
691 | case TLSEXT_TYPE_user_mapping: |
692 | extname = "user mapping" ; |
693 | break; |
694 | |
695 | case TLSEXT_TYPE_client_authz: |
696 | extname = "client authz" ; |
697 | break; |
698 | |
699 | case TLSEXT_TYPE_server_authz: |
700 | extname = "server authz" ; |
701 | break; |
702 | |
703 | case TLSEXT_TYPE_cert_type: |
704 | extname = "cert type" ; |
705 | break; |
706 | |
707 | case TLSEXT_TYPE_elliptic_curves: |
708 | extname = "elliptic curves" ; |
709 | break; |
710 | |
711 | case TLSEXT_TYPE_ec_point_formats: |
712 | extname = "EC point formats" ; |
713 | break; |
714 | |
715 | case TLSEXT_TYPE_srp: |
716 | extname = "SRP" ; |
717 | break; |
718 | |
719 | case TLSEXT_TYPE_signature_algorithms: |
720 | extname = "signature algorithms" ; |
721 | break; |
722 | |
723 | case TLSEXT_TYPE_use_srtp: |
724 | extname = "use SRTP" ; |
725 | break; |
726 | |
727 | case TLSEXT_TYPE_heartbeat: |
728 | extname = "heartbeat" ; |
729 | break; |
730 | |
731 | case TLSEXT_TYPE_session_ticket: |
732 | extname = "session ticket" ; |
733 | break; |
734 | |
735 | case TLSEXT_TYPE_renegotiate: |
736 | extname = "renegotiation info" ; |
737 | break; |
738 | |
739 | #ifdef TLSEXT_TYPE_opaque_prf_input |
740 | case TLSEXT_TYPE_opaque_prf_input: |
741 | extname = "opaque PRF input" ; |
742 | break; |
743 | #endif |
744 | #ifdef TLSEXT_TYPE_next_proto_neg |
745 | case TLSEXT_TYPE_next_proto_neg: |
746 | extname = "next protocol" ; |
747 | break; |
748 | #endif |
749 | |
750 | default: |
751 | extname = "unknown" ; |
752 | break; |
753 | |
754 | } |
755 | |
756 | BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n" , |
757 | client_server ? "server" : "client" , |
758 | extname, type, len); |
759 | BIO_dump(bio, (char *)data, len); |
760 | (void)BIO_flush(bio); |
761 | } |
762 | |
763 | int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len) |
764 | { |
765 | unsigned char *buffer, result[EVP_MAX_MD_SIZE]; |
766 | unsigned int length, resultlength; |
767 | union { |
768 | struct sockaddr sa; |
769 | struct sockaddr_in s4; |
770 | #if OPENSSL_USE_IPV6 |
771 | struct sockaddr_in6 s6; |
772 | #endif |
773 | } peer; |
774 | |
775 | /* Initialize a random secret */ |
776 | if (!cookie_initialized) |
777 | { |
778 | if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH)) |
779 | { |
780 | BIO_printf(bio_err,"error setting random cookie secret\n" ); |
781 | return 0; |
782 | } |
783 | cookie_initialized = 1; |
784 | } |
785 | |
786 | /* Read peer information */ |
787 | (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer); |
788 | |
789 | /* Create buffer with peer's address and port */ |
790 | length = 0; |
791 | switch (peer.sa.sa_family) |
792 | { |
793 | case AF_INET: |
794 | length += sizeof(struct in_addr); |
795 | length += sizeof(peer.s4.sin_port); |
796 | break; |
797 | #if OPENSSL_USE_IPV6 |
798 | case AF_INET6: |
799 | length += sizeof(struct in6_addr); |
800 | length += sizeof(peer.s6.sin6_port); |
801 | break; |
802 | #endif |
803 | default: |
804 | OPENSSL_assert(0); |
805 | break; |
806 | } |
807 | buffer = OPENSSL_malloc(length); |
808 | |
809 | if (buffer == NULL) |
810 | { |
811 | BIO_printf(bio_err,"out of memory\n" ); |
812 | return 0; |
813 | } |
814 | |
815 | switch (peer.sa.sa_family) |
816 | { |
817 | case AF_INET: |
818 | memcpy(buffer, |
819 | &peer.s4.sin_port, |
820 | sizeof(peer.s4.sin_port)); |
821 | memcpy(buffer + sizeof(peer.s4.sin_port), |
822 | &peer.s4.sin_addr, |
823 | sizeof(struct in_addr)); |
824 | break; |
825 | #if OPENSSL_USE_IPV6 |
826 | case AF_INET6: |
827 | memcpy(buffer, |
828 | &peer.s6.sin6_port, |
829 | sizeof(peer.s6.sin6_port)); |
830 | memcpy(buffer + sizeof(peer.s6.sin6_port), |
831 | &peer.s6.sin6_addr, |
832 | sizeof(struct in6_addr)); |
833 | break; |
834 | #endif |
835 | default: |
836 | OPENSSL_assert(0); |
837 | break; |
838 | } |
839 | |
840 | /* Calculate HMAC of buffer using the secret */ |
841 | HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH, |
842 | buffer, length, result, &resultlength); |
843 | OPENSSL_free(buffer); |
844 | |
845 | memcpy(cookie, result, resultlength); |
846 | *cookie_len = resultlength; |
847 | |
848 | return 1; |
849 | } |
850 | |
851 | int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len) |
852 | { |
853 | unsigned char *buffer, result[EVP_MAX_MD_SIZE]; |
854 | unsigned int length, resultlength; |
855 | union { |
856 | struct sockaddr sa; |
857 | struct sockaddr_in s4; |
858 | #if OPENSSL_USE_IPV6 |
859 | struct sockaddr_in6 s6; |
860 | #endif |
861 | } peer; |
862 | |
863 | /* If secret isn't initialized yet, the cookie can't be valid */ |
864 | if (!cookie_initialized) |
865 | return 0; |
866 | |
867 | /* Read peer information */ |
868 | (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer); |
869 | |
870 | /* Create buffer with peer's address and port */ |
871 | length = 0; |
872 | switch (peer.sa.sa_family) |
873 | { |
874 | case AF_INET: |
875 | length += sizeof(struct in_addr); |
876 | length += sizeof(peer.s4.sin_port); |
877 | break; |
878 | #if OPENSSL_USE_IPV6 |
879 | case AF_INET6: |
880 | length += sizeof(struct in6_addr); |
881 | length += sizeof(peer.s6.sin6_port); |
882 | break; |
883 | #endif |
884 | default: |
885 | OPENSSL_assert(0); |
886 | break; |
887 | } |
888 | buffer = OPENSSL_malloc(length); |
889 | |
890 | if (buffer == NULL) |
891 | { |
892 | BIO_printf(bio_err,"out of memory\n" ); |
893 | return 0; |
894 | } |
895 | |
896 | switch (peer.sa.sa_family) |
897 | { |
898 | case AF_INET: |
899 | memcpy(buffer, |
900 | &peer.s4.sin_port, |
901 | sizeof(peer.s4.sin_port)); |
902 | memcpy(buffer + sizeof(peer.s4.sin_port), |
903 | &peer.s4.sin_addr, |
904 | sizeof(struct in_addr)); |
905 | break; |
906 | #if OPENSSL_USE_IPV6 |
907 | case AF_INET6: |
908 | memcpy(buffer, |
909 | &peer.s6.sin6_port, |
910 | sizeof(peer.s6.sin6_port)); |
911 | memcpy(buffer + sizeof(peer.s6.sin6_port), |
912 | &peer.s6.sin6_addr, |
913 | sizeof(struct in6_addr)); |
914 | break; |
915 | #endif |
916 | default: |
917 | OPENSSL_assert(0); |
918 | break; |
919 | } |
920 | |
921 | /* Calculate HMAC of buffer using the secret */ |
922 | HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH, |
923 | buffer, length, result, &resultlength); |
924 | OPENSSL_free(buffer); |
925 | |
926 | if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0) |
927 | return 1; |
928 | |
929 | return 0; |
930 | } |
931 | |