contrib/bind/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
  34 isc_boolean_t
  35 dns_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 }