1 /*
2  * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
3  *
4  * This Source Code Form is subject to the terms of the Mozilla Public
5  * License, v. 2.0. If a copy of the MPL was not distributed with this
6  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
7  *
8  * See the COPYRIGHT file distributed with this work for additional
9  * information regarding copyright ownership.
10  */
11 
12 /*! \file */
13 
14 #include <stdbool.h>
15 
16 #include <isc/result.h>
17 #include <isc/types.h>
18 #include <isc/util.h>
19 
20 #include <dns/keyvalues.h>
21 #include <dns/rdata.h>
22 #include <dns/rdatastruct.h>
23 #include <dns/types.h>
24 #include <dns/zonekey.h>
25 
26 bool
dns_zonekey_iszonekey(dns_rdata_t * keyrdata)27 dns_zonekey_iszonekey(dns_rdata_t *keyrdata) {
28 	isc_result_t result;
29 	dns_rdata_dnskey_t key;
30 	bool iszonekey = true;
31 
32 	REQUIRE(keyrdata != NULL);
33 
34 	result = dns_rdata_tostruct(keyrdata, &key, NULL);
35 	if (result != ISC_R_SUCCESS) {
36 		return (false);
37 	}
38 
39 	if ((key.flags & DNS_KEYTYPE_NOAUTH) != 0) {
40 		iszonekey = false;
41 	}
42 	if ((key.flags & DNS_KEYFLAG_OWNERMASK) != DNS_KEYOWNER_ZONE) {
43 		iszonekey = false;
44 	}
45 	if (key.protocol != DNS_KEYPROTO_DNSSEC &&
46 	    key.protocol != DNS_KEYPROTO_ANY) {
47 		iszonekey = false;
48 	}
49 
50 	return (iszonekey);
51 }
52