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Diffstat (limited to 'lib/dns/include/dns/nsec.h')
-rw-r--r-- | lib/dns/include/dns/nsec.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/lib/dns/include/dns/nsec.h b/lib/dns/include/dns/nsec.h new file mode 100644 index 0000000..335a463 --- /dev/null +++ b/lib/dns/include/dns/nsec.h @@ -0,0 +1,80 @@ +/* + * Copyright (C) 2004-2008 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: nsec.h,v 1.12 2008/09/25 04:02:39 tbox Exp $ */ + +#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 */ |