1 /* $NetBSD: zonekey.c,v 1.8 2025/01/26 16:25:26 christos Exp $ */ 2 3 /* 4 * Copyright (C) Internet Systems Consortium, Inc. ("ISC") 5 * 6 * SPDX-License-Identifier: MPL-2.0 7 * 8 * This Source Code Form is subject to the terms of the Mozilla Public 9 * License, v. 2.0. If a copy of the MPL was not distributed with this 10 * file, you can obtain one at https://mozilla.org/MPL/2.0/. 11 * 12 * See the COPYRIGHT file distributed with this work for additional 13 * information regarding copyright ownership. 14 */ 15 16 /*! \file */ 17 18 #include <stdbool.h> 19 20 #include <isc/result.h> 21 #include <isc/types.h> 22 #include <isc/util.h> 23 24 #include <dns/keyvalues.h> 25 #include <dns/rdata.h> 26 #include <dns/rdatastruct.h> 27 #include <dns/types.h> 28 #include <dns/zonekey.h> 29 30 bool 31 dns_zonekey_iszonekey(dns_rdata_t *keyrdata) { 32 isc_result_t result; 33 dns_rdata_dnskey_t key; 34 bool iszonekey = true; 35 36 REQUIRE(keyrdata != NULL); 37 38 result = dns_rdata_tostruct(keyrdata, &key, NULL); 39 if (result != ISC_R_SUCCESS) { 40 return false; 41 } 42 43 if ((key.flags & DNS_KEYTYPE_NOAUTH) != 0) { 44 iszonekey = false; 45 } 46 if ((key.flags & DNS_KEYFLAG_OWNERMASK) != DNS_KEYOWNER_ZONE) { 47 iszonekey = false; 48 } 49 if (key.protocol != DNS_KEYPROTO_DNSSEC && 50 key.protocol != DNS_KEYPROTO_ANY) 51 { 52 iszonekey = false; 53 } 54 55 return iszonekey; 56 } 57