/contrib/bind9/lib/dns/zonekey.c

 1/*
 2 * Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
 3 * Copyright (C) 2001, 2003  Internet Software Consortium.
 4 *
 5 * Permission to use, copy, modify, and/or distribute this software for any
 6 * purpose with or without fee is hereby granted, provided that the above
 7 * copyright notice and this permission notice appear in all copies.
 8 *
 9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
16 */
17
18/* $Id: zonekey.c,v 1.9 2007/06/19 23:47:16 tbox Exp $ */
19
20/*! \file */
21
22#include <config.h>
23
24#include <isc/result.h>
25#include <isc/types.h>
26#include <isc/util.h>
27
28#include <dns/keyvalues.h>
29#include <dns/rdata.h>
30#include <dns/rdatastruct.h>
31#include <dns/types.h>
32#include <dns/zonekey.h>
33
34isc_boolean_t
35dns_zonekey_iszonekey(dns_rdata_t *keyrdata) {
36	isc_result_t result;
37	dns_rdata_dnskey_t key;
38	isc_boolean_t iszonekey = ISC_TRUE;
39
40	REQUIRE(keyrdata != NULL);
41
42	result = dns_rdata_tostruct(keyrdata, &key, NULL);
43	if (result != ISC_R_SUCCESS)
44		return (ISC_FALSE);
45
46	if ((key.flags & DNS_KEYTYPE_NOAUTH) != 0)
47		iszonekey = ISC_FALSE;
48	if ((key.flags & DNS_KEYFLAG_OWNERMASK) != DNS_KEYOWNER_ZONE)
49		iszonekey = ISC_FALSE;
50	if (key.protocol != DNS_KEYPROTO_DNSSEC &&
51	key.protocol != DNS_KEYPROTO_ANY)
52		iszonekey = ISC_FALSE;
53	
54	return (iszonekey);
55}