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1.18 ! tb 1: /* $OpenBSD: s_cb.c,v 1.17 2022/02/03 18:35:24 tb Exp $ */
1.1 jsing 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 <sys/socket.h>
113:
114: #include <netinet/in.h>
115:
116: #include <netdb.h>
117: #include <stdio.h>
118: #include <stdlib.h>
119: #include <string.h>
120:
121: #include "apps.h"
122:
123: #include <openssl/err.h>
124: #include <openssl/ssl.h>
125: #include <openssl/x509.h>
126:
127: #include "s_apps.h"
128:
129: #define COOKIE_SECRET_LENGTH 16
130:
131: int verify_depth = 0;
132: int verify_return_error = 0;
133: unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
134: int cookie_initialized = 0;
135:
136: int
137: verify_callback(int ok, X509_STORE_CTX * ctx)
138: {
139: X509 *err_cert;
140: int err, depth;
141:
142: err_cert = X509_STORE_CTX_get_current_cert(ctx);
143: err = X509_STORE_CTX_get_error(ctx);
144: depth = X509_STORE_CTX_get_error_depth(ctx);
145:
146: BIO_printf(bio_err, "depth=%d ", depth);
147: if (err_cert) {
148: X509_NAME_print_ex(bio_err, X509_get_subject_name(err_cert),
149: 0, XN_FLAG_ONELINE);
150: BIO_puts(bio_err, "\n");
151: } else
152: BIO_puts(bio_err, "<no cert>\n");
153: if (!ok) {
154: BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
155: X509_verify_cert_error_string(err));
156: if (verify_depth >= depth) {
157: if (!verify_return_error)
158: ok = 1;
159: } else {
160: ok = 0;
161: }
162: }
163: switch (err) {
164: case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
165: BIO_puts(bio_err, "issuer= ");
1.4 doug 166: if (err_cert == NULL)
167: BIO_puts(bio_err, "<error getting cert>");
168: else
169: X509_NAME_print_ex(bio_err,
170: X509_get_issuer_name(err_cert), 0, XN_FLAG_ONELINE);
1.1 jsing 171: BIO_puts(bio_err, "\n");
172: break;
173: case X509_V_ERR_CERT_NOT_YET_VALID:
174: case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
175: BIO_printf(bio_err, "notBefore=");
1.4 doug 176: if (err_cert == NULL)
177: BIO_printf(bio_err, " <error getting cert>");
178: else
179: ASN1_TIME_print(bio_err, X509_get_notBefore(err_cert));
1.1 jsing 180: BIO_printf(bio_err, "\n");
181: break;
182: case X509_V_ERR_CERT_HAS_EXPIRED:
183: case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
184: BIO_printf(bio_err, "notAfter=");
1.4 doug 185: if (err_cert == NULL)
186: BIO_printf(bio_err, " <error getting cert>");
187: else
188: ASN1_TIME_print(bio_err, X509_get_notAfter(err_cert));
1.1 jsing 189: BIO_printf(bio_err, "\n");
190: break;
191: case X509_V_ERR_NO_EXPLICIT_POLICY:
192: policies_print(bio_err, ctx);
193: break;
194: }
195: if (err == X509_V_OK && ok == 2)
196: policies_print(bio_err, ctx);
197:
198: BIO_printf(bio_err, "verify return:%d\n", ok);
199: return (ok);
200: }
201:
202: int
203: set_cert_stuff(SSL_CTX * ctx, char *cert_file, char *key_file)
204: {
1.18 ! tb 205: if (cert_file == NULL)
! 206: return 1;
! 207:
! 208: if (key_file == NULL)
! 209: key_file = cert_file;
! 210:
! 211: if (SSL_CTX_use_certificate_file(ctx, cert_file, SSL_FILETYPE_PEM) <= 0) {
! 212: BIO_printf(bio_err,
! 213: "unable to get certificate from '%s'\n", cert_file);
! 214: ERR_print_errors(bio_err);
! 215: return 0;
! 216: }
! 217: if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
! 218: BIO_printf(bio_err, "unable to get private key from '%s'\n",
! 219: key_file);
! 220: ERR_print_errors(bio_err);
! 221: return 0;
! 222: }
1.1 jsing 223:
1.18 ! tb 224: /* Now we know that a key and cert have been set against the context. */
! 225: if (!SSL_CTX_check_private_key(ctx)) {
! 226: BIO_printf(bio_err,
! 227: "Private key does not match the certificate public key\n");
! 228: return 0;
1.1 jsing 229: }
1.18 ! tb 230:
! 231: return 1;
1.1 jsing 232: }
233:
234: int
235: set_cert_key_stuff(SSL_CTX * ctx, X509 * cert, EVP_PKEY * key)
236: {
237: if (cert == NULL)
238: return 1;
239: if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
240: BIO_printf(bio_err, "error setting certificate\n");
241: ERR_print_errors(bio_err);
242: return 0;
243: }
244: if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
245: BIO_printf(bio_err, "error setting private key\n");
246: ERR_print_errors(bio_err);
247: return 0;
248: }
249: /*
250: * Now we know that a key and cert have been set against the SSL
251: * context
252: */
253: if (!SSL_CTX_check_private_key(ctx)) {
254: BIO_printf(bio_err,
255: "Private key does not match the certificate public key\n");
256: return 0;
257: }
1.7 jsing 258: return 1;
259: }
260:
261: int
262: ssl_print_tmp_key(BIO *out, SSL *s)
263: {
264: const char *cname;
265: EVP_PKEY *pkey;
266: EC_KEY *ec;
267: int nid;
268:
269: if (!SSL_get_server_tmp_key(s, &pkey))
270: return 0;
271:
272: BIO_puts(out, "Server Temp Key: ");
273: switch (EVP_PKEY_id(pkey)) {
274: case EVP_PKEY_DH:
275: BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(pkey));
276: break;
277:
278: case EVP_PKEY_EC:
279: ec = EVP_PKEY_get1_EC_KEY(pkey);
280: nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
281: EC_KEY_free(ec);
282:
283: if ((cname = EC_curve_nid2nist(nid)) == NULL)
284: cname = OBJ_nid2sn(nid);
285:
286: BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(pkey));
287: break;
288:
289: default:
290: BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_id(pkey)),
291: EVP_PKEY_bits(pkey));
292: }
293:
294: EVP_PKEY_free(pkey);
1.1 jsing 295: return 1;
296: }
297:
298: long
299: bio_dump_callback(BIO * bio, int cmd, const char *argp,
300: int argi, long argl, long ret)
301: {
302: BIO *out;
303:
304: out = (BIO *) BIO_get_callback_arg(bio);
305: if (out == NULL)
306: return (ret);
307:
308: if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
309: BIO_printf(out,
310: "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
311: (void *) bio, argp, (unsigned long) argi, ret, ret);
312: BIO_dump(out, argp, (int) ret);
313: return (ret);
314: } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
315: BIO_printf(out,
316: "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
317: (void *) bio, argp, (unsigned long) argi, ret, ret);
318: BIO_dump(out, argp, (int) ret);
319: }
320: return (ret);
321: }
322:
323: void
324: apps_ssl_info_callback(const SSL * s, int where, int ret)
325: {
326: const char *str;
327: int w;
328:
329: w = where & ~SSL_ST_MASK;
330:
331: if (w & SSL_ST_CONNECT)
332: str = "SSL_connect";
333: else if (w & SSL_ST_ACCEPT)
334: str = "SSL_accept";
335: else
336: str = "undefined";
337:
338: if (where & SSL_CB_LOOP) {
339: BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
340: } else if (where & SSL_CB_ALERT) {
341: str = (where & SSL_CB_READ) ? "read" : "write";
342: BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n", str,
343: SSL_alert_type_string_long(ret),
344: SSL_alert_desc_string_long(ret));
345: } else if (where & SSL_CB_EXIT) {
346: if (ret == 0)
347: BIO_printf(bio_err, "%s:failed in %s\n",
348: str, SSL_state_string_long(s));
349: else if (ret < 0) {
350: BIO_printf(bio_err, "%s:error in %s\n",
351: str, SSL_state_string_long(s));
352: }
353: }
354: }
355:
356:
357: void
358: msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL * ssl, void *arg)
359: {
360: BIO *bio = arg;
361: const char *str_write_p, *str_version, *str_content_type = "",
362: *str_details1 = "", *str_details2 = "";
363:
364: str_write_p = write_p ? ">>>" : "<<<";
365:
1.13 tb 366: /* XXX convert to using ssl_get_version */
1.1 jsing 367: switch (version) {
368: case SSL2_VERSION:
369: str_version = "SSL 2.0";
370: break;
371: case SSL3_VERSION:
372: str_version = "SSL 3.0 ";
373: break;
374: case TLS1_VERSION:
375: str_version = "TLS 1.0 ";
376: break;
377: case TLS1_1_VERSION:
378: str_version = "TLS 1.1 ";
379: break;
380: case TLS1_2_VERSION:
381: str_version = "TLS 1.2 ";
382: break;
1.12 tb 383: case TLS1_3_VERSION:
384: str_version = "TLS 1.3 ";
385: break;
1.1 jsing 386: case DTLS1_VERSION:
387: str_version = "DTLS 1.0 ";
388: break;
1.15 inoguchi 389: case DTLS1_2_VERSION:
390: str_version = "DTLS 1.2 ";
391: break;
1.1 jsing 392: default:
393: str_version = "???";
394: }
395:
396: if (version == SSL2_VERSION) {
397: str_details1 = "???";
398:
399: if (len > 0) {
1.13 tb 400: /* XXX magic numbers */
1.1 jsing 401: switch (((const unsigned char *) buf)[0]) {
402: case 0:
403: str_details1 = ", ERROR:";
404: str_details2 = " ???";
405: if (len >= 3) {
406: unsigned err = (((const unsigned char *) buf)[1] << 8) + ((const unsigned char *) buf)[2];
407:
408: switch (err) {
409: case 0x0001:
410: str_details2 = " NO-CIPHER-ERROR";
411: break;
412: case 0x0002:
413: str_details2 = " NO-CERTIFICATE-ERROR";
414: break;
415: case 0x0004:
416: str_details2 = " BAD-CERTIFICATE-ERROR";
417: break;
418: case 0x0006:
419: str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
420: break;
421: }
422: }
423: break;
424: case 1:
425: str_details1 = ", CLIENT-HELLO";
426: break;
427: case 2:
428: str_details1 = ", CLIENT-MASTER-KEY";
429: break;
430: case 3:
431: str_details1 = ", CLIENT-FINISHED";
432: break;
433: case 4:
434: str_details1 = ", SERVER-HELLO";
435: break;
436: case 5:
437: str_details1 = ", SERVER-VERIFY";
438: break;
439: case 6:
440: str_details1 = ", SERVER-FINISHED";
441: break;
442: case 7:
443: str_details1 = ", REQUEST-CERTIFICATE";
444: break;
445: case 8:
446: str_details1 = ", CLIENT-CERTIFICATE";
447: break;
448: }
449: }
450: }
451: if (version == SSL3_VERSION || version == TLS1_VERSION ||
452: version == TLS1_1_VERSION || version == TLS1_2_VERSION ||
1.15 inoguchi 453: version == TLS1_3_VERSION || version == DTLS1_VERSION ||
454: version == DTLS1_2_VERSION) {
1.13 tb 455: /* XXX magic numbers are in ssl3.h */
1.1 jsing 456: switch (content_type) {
457: case 20:
458: str_content_type = "ChangeCipherSpec";
459: break;
460: case 21:
461: str_content_type = "Alert";
462: break;
463: case 22:
464: str_content_type = "Handshake";
465: break;
466: }
467:
468: if (content_type == 21) { /* Alert */
469: str_details1 = ", ???";
470:
471: if (len == 2) {
472: switch (((const unsigned char *) buf)[0]) {
473: case 1:
474: str_details1 = ", warning";
475: break;
476: case 2:
477: str_details1 = ", fatal";
478: break;
479: }
480:
481: str_details2 = " ???";
482: switch (((const unsigned char *) buf)[1]) {
483: case 0:
484: str_details2 = " close_notify";
485: break;
486: case 10:
487: str_details2 = " unexpected_message";
488: break;
489: case 20:
490: str_details2 = " bad_record_mac";
491: break;
492: case 21:
493: str_details2 = " decryption_failed";
494: break;
495: case 22:
496: str_details2 = " record_overflow";
497: break;
498: case 30:
499: str_details2 = " decompression_failure";
500: break;
501: case 40:
502: str_details2 = " handshake_failure";
503: break;
504: case 42:
505: str_details2 = " bad_certificate";
506: break;
507: case 43:
508: str_details2 = " unsupported_certificate";
509: break;
510: case 44:
511: str_details2 = " certificate_revoked";
512: break;
513: case 45:
514: str_details2 = " certificate_expired";
515: break;
516: case 46:
517: str_details2 = " certificate_unknown";
518: break;
519: case 47:
520: str_details2 = " illegal_parameter";
521: break;
522: case 48:
523: str_details2 = " unknown_ca";
524: break;
525: case 49:
526: str_details2 = " access_denied";
527: break;
528: case 50:
529: str_details2 = " decode_error";
530: break;
531: case 51:
532: str_details2 = " decrypt_error";
533: break;
534: case 60:
535: str_details2 = " export_restriction";
536: break;
537: case 70:
538: str_details2 = " protocol_version";
539: break;
540: case 71:
541: str_details2 = " insufficient_security";
542: break;
543: case 80:
544: str_details2 = " internal_error";
545: break;
546: case 90:
547: str_details2 = " user_canceled";
548: break;
549: case 100:
550: str_details2 = " no_renegotiation";
551: break;
552: case 110:
553: str_details2 = " unsupported_extension";
554: break;
555: case 111:
556: str_details2 = " certificate_unobtainable";
557: break;
558: case 112:
559: str_details2 = " unrecognized_name";
560: break;
561: case 113:
562: str_details2 = " bad_certificate_status_response";
563: break;
564: case 114:
565: str_details2 = " bad_certificate_hash_value";
566: break;
567: case 115:
568: str_details2 = " unknown_psk_identity";
569: break;
570: }
571: }
572: }
573: if (content_type == 22) { /* Handshake */
574: str_details1 = "???";
575:
576: if (len > 0) {
577: switch (((const unsigned char *) buf)[0]) {
578: case 0:
579: str_details1 = ", HelloRequest";
580: break;
581: case 1:
582: str_details1 = ", ClientHello";
583: break;
584: case 2:
585: str_details1 = ", ServerHello";
586: break;
587: case 3:
588: str_details1 = ", HelloVerifyRequest";
589: break;
1.12 tb 590: case 4:
591: str_details1 = ", NewSessionTicket";
592: break;
593: case 5:
594: str_details1 = ", EndOfEarlyData";
595: break;
596: case 8:
597: str_details1 = ", EncryptedExtensions";
598: break;
1.1 jsing 599: case 11:
600: str_details1 = ", Certificate";
601: break;
602: case 12:
603: str_details1 = ", ServerKeyExchange";
604: break;
605: case 13:
606: str_details1 = ", CertificateRequest";
607: break;
608: case 14:
609: str_details1 = ", ServerHelloDone";
610: break;
611: case 15:
612: str_details1 = ", CertificateVerify";
613: break;
614: case 16:
615: str_details1 = ", ClientKeyExchange";
616: break;
617: case 20:
618: str_details1 = ", Finished";
1.12 tb 619: break;
620: case 24:
621: str_details1 = ", KeyUpdate";
1.1 jsing 622: break;
623: }
624: }
625: }
626: }
627: BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p,
628: str_version, str_content_type, (unsigned long) len,
629: str_details1, str_details2);
630:
631: if (len > 0) {
632: size_t num, i;
633:
634: BIO_printf(bio, " ");
635: num = len;
1.3 doug 636:
1.1 jsing 637: for (i = 0; i < num; i++) {
638: if (i % 16 == 0 && i > 0)
639: BIO_printf(bio, "\n ");
640: BIO_printf(bio, " %02x",
641: ((const unsigned char *) buf)[i]);
642: }
643: if (i < len)
644: BIO_printf(bio, " ...");
645: BIO_printf(bio, "\n");
646: }
647: (void) BIO_flush(bio);
648: }
649:
650: void
651: tlsext_cb(SSL * s, int client_server, int type, unsigned char *data, int len,
652: void *arg)
653: {
654: BIO *bio = arg;
655: char *extname;
656:
657: switch (type) {
658: case TLSEXT_TYPE_server_name:
659: extname = "server name";
660: break;
661:
662: case TLSEXT_TYPE_max_fragment_length:
663: extname = "max fragment length";
664: break;
665:
666: case TLSEXT_TYPE_client_certificate_url:
667: extname = "client certificate URL";
668: break;
669:
670: case TLSEXT_TYPE_trusted_ca_keys:
671: extname = "trusted CA keys";
672: break;
673:
674: case TLSEXT_TYPE_truncated_hmac:
675: extname = "truncated HMAC";
676: break;
677:
678: case TLSEXT_TYPE_status_request:
679: extname = "status request";
680: break;
681:
682: case TLSEXT_TYPE_user_mapping:
683: extname = "user mapping";
684: break;
685:
686: case TLSEXT_TYPE_client_authz:
687: extname = "client authz";
688: break;
689:
690: case TLSEXT_TYPE_server_authz:
691: extname = "server authz";
692: break;
693:
694: case TLSEXT_TYPE_cert_type:
695: extname = "cert type";
696: break;
697:
1.11 jsing 698: case TLSEXT_TYPE_supported_groups:
699: extname = "supported groups";
1.1 jsing 700: break;
701:
702: case TLSEXT_TYPE_ec_point_formats:
703: extname = "EC point formats";
704: break;
705:
706: case TLSEXT_TYPE_srp:
707: extname = "SRP";
708: break;
709:
710: case TLSEXT_TYPE_signature_algorithms:
711: extname = "signature algorithms";
712: break;
713:
714: case TLSEXT_TYPE_use_srtp:
715: extname = "use SRTP";
716: break;
717:
718: case TLSEXT_TYPE_heartbeat:
719: extname = "heartbeat";
720: break;
721:
1.14 inoguchi 722: case TLSEXT_TYPE_application_layer_protocol_negotiation:
723: extname = "application layer protocol negotiation";
724: break;
725:
726: case TLSEXT_TYPE_padding:
727: extname = "TLS padding";
728: break;
729:
1.1 jsing 730: case TLSEXT_TYPE_session_ticket:
731: extname = "session ticket";
732: break;
733:
1.14 inoguchi 734: #if defined(LIBRESSL_HAS_TLS1_3) || defined(LIBRESSL_INTERNAL)
735: case TLSEXT_TYPE_pre_shared_key:
736: extname = "pre shared key";
737: break;
738:
739: case TLSEXT_TYPE_early_data:
740: extname = "early data";
741: break;
742:
743: case TLSEXT_TYPE_supported_versions:
744: extname = "supported versions";
745: break;
746:
747: case TLSEXT_TYPE_cookie:
748: extname = "cookie";
749: break;
750:
751: case TLSEXT_TYPE_psk_key_exchange_modes:
752: extname = "PSK key exchange modes";
753: break;
754:
755: case TLSEXT_TYPE_certificate_authorities:
756: extname = "certificate authorities";
757: break;
758:
759: case TLSEXT_TYPE_oid_filters:
760: extname = "OID filters";
761: break;
762:
763: case TLSEXT_TYPE_post_handshake_auth:
764: extname = "post handshake auth";
765: break;
766:
767: case TLSEXT_TYPE_signature_algorithms_cert:
768: extname = "signature algorithms cert";
1.9 inoguchi 769: break;
770:
1.14 inoguchi 771: case TLSEXT_TYPE_key_share:
772: extname = "key share";
1.9 inoguchi 773: break;
1.14 inoguchi 774: #endif
1.9 inoguchi 775:
1.14 inoguchi 776: case TLSEXT_TYPE_renegotiate:
777: extname = "renegotiation info";
1.1 jsing 778: break;
779:
780: default:
781: extname = "unknown";
782: break;
783:
784: }
785:
786: BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
787: client_server ? "server" : "client", extname, type, len);
788: BIO_dump(bio, (char *) data, len);
789: (void) BIO_flush(bio);
790: }
791:
792: int
793: generate_cookie_callback(SSL * ssl, unsigned char *cookie,
794: unsigned int *cookie_len)
795: {
796: unsigned char *buffer, result[EVP_MAX_MD_SIZE];
797: unsigned int length, resultlength;
798: union {
799: struct sockaddr sa;
800: struct sockaddr_in s4;
801: struct sockaddr_in6 s6;
802: } peer;
803:
804: /* Initialize a random secret */
805: if (!cookie_initialized) {
1.2 jsing 806: arc4random_buf(cookie_secret, COOKIE_SECRET_LENGTH);
1.1 jsing 807: cookie_initialized = 1;
808: }
809: /* Read peer information */
810: (void) BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
811:
812: /* Create buffer with peer's address and port */
813: length = 0;
814: switch (peer.sa.sa_family) {
815: case AF_INET:
816: length += sizeof(struct in_addr);
817: length += sizeof(peer.s4.sin_port);
818: break;
819: case AF_INET6:
820: length += sizeof(struct in6_addr);
821: length += sizeof(peer.s6.sin6_port);
822: break;
823: default:
824: OPENSSL_assert(0);
825: break;
826: }
827: buffer = malloc(length);
828:
829: if (buffer == NULL) {
830: BIO_printf(bio_err, "out of memory\n");
831: return 0;
832: }
833: switch (peer.sa.sa_family) {
834: case AF_INET:
835: memcpy(buffer, &peer.s4.sin_port, sizeof(peer.s4.sin_port));
836: memcpy(buffer + sizeof(peer.s4.sin_port),
837: &peer.s4.sin_addr, sizeof(struct in_addr));
838: break;
839: case AF_INET6:
840: memcpy(buffer, &peer.s6.sin6_port, sizeof(peer.s6.sin6_port));
841: memcpy(buffer + sizeof(peer.s6.sin6_port),
842: &peer.s6.sin6_addr, sizeof(struct in6_addr));
843: break;
844: default:
845: OPENSSL_assert(0);
846: break;
847: }
848:
849: /* Calculate HMAC of buffer using the secret */
850: HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
851: buffer, length, result, &resultlength);
852: free(buffer);
853:
854: memcpy(cookie, result, resultlength);
855: *cookie_len = resultlength;
856:
857: return 1;
858: }
859:
860: int
1.10 tb 861: verify_cookie_callback(SSL * ssl, const unsigned char *cookie,
862: unsigned int cookie_len)
1.1 jsing 863: {
864: unsigned char *buffer, result[EVP_MAX_MD_SIZE];
865: unsigned int length, resultlength;
866: union {
867: struct sockaddr sa;
868: struct sockaddr_in s4;
869: struct sockaddr_in6 s6;
870: } peer;
871:
872: /* If secret isn't initialized yet, the cookie can't be valid */
873: if (!cookie_initialized)
874: return 0;
875:
876: /* Read peer information */
877: (void) BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
878:
879: /* Create buffer with peer's address and port */
880: length = 0;
881: switch (peer.sa.sa_family) {
882: case AF_INET:
883: length += sizeof(struct in_addr);
884: length += sizeof(peer.s4.sin_port);
885: break;
886: case AF_INET6:
887: length += sizeof(struct in6_addr);
888: length += sizeof(peer.s6.sin6_port);
889: break;
890: default:
891: OPENSSL_assert(0);
892: break;
893: }
894: buffer = malloc(length);
895:
896: if (buffer == NULL) {
897: BIO_printf(bio_err, "out of memory\n");
898: return 0;
899: }
900: switch (peer.sa.sa_family) {
901: case AF_INET:
902: memcpy(buffer, &peer.s4.sin_port, sizeof(peer.s4.sin_port));
903: memcpy(buffer + sizeof(peer.s4.sin_port),
904: &peer.s4.sin_addr, sizeof(struct in_addr));
905: break;
906: case AF_INET6:
907: memcpy(buffer, &peer.s6.sin6_port, sizeof(peer.s6.sin6_port));
908: memcpy(buffer + sizeof(peer.s6.sin6_port),
909: &peer.s6.sin6_addr, sizeof(struct in6_addr));
910: break;
911: default:
912: OPENSSL_assert(0);
913: break;
914: }
915:
916: /* Calculate HMAC of buffer using the secret */
917: HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
918: buffer, length, result, &resultlength);
919: free(buffer);
920:
921: if (cookie_len == resultlength &&
922: memcmp(result, cookie, resultlength) == 0)
923: return 1;
924:
925: return 0;
926: }