/* * Copyright (C) 2004-2008, 2012 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 1999-2001, 2003 Internet Software Consortium. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ /* $Id$ */ #ifndef DNS_NSEC_H #define DNS_NSEC_H 1 /*! \file dns/nsec.h */ #include <isc/lang.h> #include <dns/types.h> #include <dns/name.h> #define DNS_NSEC_BUFFERSIZE (DNS_NAME_MAXWIRE + 8192 + 512) ISC_LANG_BEGINDECLS isc_result_t dns_nsec_buildrdata(dns_db_t *db, dns_dbversion_t *version, dns_dbnode_t *node, dns_name_t *target, unsigned char *buffer, dns_rdata_t *rdata); /*%< * Build the rdata of a NSEC record. * * Requires: *\li buffer Points to a temporary buffer of at least * DNS_NSEC_BUFFERSIZE bytes. *\li rdata Points to an initialized dns_rdata_t. * * Ensures: * \li *rdata Contains a valid NSEC rdata. The 'data' member refers * to 'buffer'. */ isc_result_t dns_nsec_build(dns_db_t *db, dns_dbversion_t *version, dns_dbnode_t *node, dns_name_t *target, dns_ttl_t ttl); /*%< * Build a NSEC record and add it to a database. */ isc_boolean_t dns_nsec_typepresent(dns_rdata_t *nsec, dns_rdatatype_t type); /*%< * Determine if a type is marked as present in an NSEC record. * * Requires: *\li 'nsec' points to a valid rdataset of type NSEC */ isc_result_t dns_nsec_nseconly(dns_db_t *db, dns_dbversion_t *version, isc_boolean_t *answer); /* * Report whether the DNSKEY RRset has a NSEC only algorithm. Unknown * algorithms are assumed to support NSEC3. * * Requires: * 'answer' to be non NULL. */ ISC_LANG_ENDDECLS #endif /* DNS_NSEC_H */