external/bsd/bind/dist/lib/dns/zonekey.c

   1 /*      $NetBSD: zonekey.c,v 1.4 2014/12/10 04:37:58 christos Exp $     */
   2
   3 /*
   4  * Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
   5  * Copyright (C) 2001, 2003  Internet Software Consortium.
   6  *
   7  * Permission to use, copy, modify, and/or distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  12  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  13  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  14  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  15  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  16  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  17  * PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 /* Id: zonekey.c,v 1.9 2007/06/19 23:47:16 tbox Exp  */
  21
  22 /*! \file */
  23
  24 #include <config.h>
  25
  26 #include <isc/result.h>
  27 #include <isc/types.h>
  28 #include <isc/util.h>
  29
  30 #include <dns/keyvalues.h>
  31 #include <dns/rdata.h>
  32 #include <dns/rdatastruct.h>
  33 #include <dns/types.h>
  34 #include <dns/zonekey.h>
  35
  36 isc_boolean_t
  37 dns_zonekey_iszonekey(dns_rdata_t *keyrdata) {
  38         isc_result_t result;
  39         dns_rdata_dnskey_t key;
  40         isc_boolean_t iszonekey = ISC_TRUE;
  41
  42         REQUIRE(keyrdata != NULL);
  43
  44         result = dns_rdata_tostruct(keyrdata, &key, NULL);
  45         if (result != ISC_R_SUCCESS)
  46                 return (ISC_FALSE);
  47
  48         if ((key.flags & DNS_KEYTYPE_NOAUTH) != 0)
  49                 iszonekey = ISC_FALSE;
  50         if ((key.flags & DNS_KEYFLAG_OWNERMASK) != DNS_KEYOWNER_ZONE)
  51                 iszonekey = ISC_FALSE;
  52         if (key.protocol != DNS_KEYPROTO_DNSSEC &&
  53         key.protocol != DNS_KEYPROTO_ANY)
  54                 iszonekey = ISC_FALSE;
  55
  56         return (iszonekey);
  57 }