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ðŸ“„ adb.h(22.07 KB)
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ðŸ“„ bit.h(807 B)
ðŸ“„ byaddr.h(3.91 KB)
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ðŸ“„ catz.h(11.56 KB)
ðŸ“„ cert.h(1.43 KB)
ðŸ“„ client.h(21.53 KB)
ðŸ“„ clientinfo.h(1.96 KB)
ðŸ“„ compress.h(6.49 KB)
ðŸ“„ db.h(45.48 KB)
ðŸ“„ dbiterator.h(7.25 KB)
ðŸ“„ dbtable.h(3.09 KB)
ðŸ“„ diff.h(6.82 KB)
ðŸ“„ dispatch.h(16.04 KB)
ðŸ“„ dlz.h(10.37 KB)
ðŸ“„ dlz_dlopen.h(4.57 KB)
ðŸ“„ dns64.h(5.5 KB)
ðŸ“„ dnssec.h(11.83 KB)
ðŸ“„ dnstap.h(9.14 KB)
ðŸ“„ ds.h(1.2 KB)
ðŸ“„ dsdigest.h(1.68 KB)
ðŸ“„ dyndb.h(4.72 KB)
ðŸ“„ ecdb.h(809 B)
ðŸ“„ edns.h(722 B)
ðŸ“„ enumclass.h(1.19 KB)
ðŸ“„ enumtype.h(8.11 KB)
ðŸ“„ events.h(3.96 KB)
ðŸ“„ fixedname.h(1.62 KB)
ðŸ“„ forward.h(3.37 KB)
ðŸ“„ geoip.h(2.73 KB)
ðŸ“„ ipkeylist.h(2.13 KB)
ðŸ“„ iptable.h(1.58 KB)
ðŸ“„ journal.h(8.03 KB)
ðŸ“„ keydata.h(1.03 KB)
ðŸ“„ keyflags.h(1.25 KB)
ðŸ“„ keytable.h(9.24 KB)
ðŸ“„ keyvalues.h(4.06 KB)
ðŸ“„ lib.h(1.16 KB)
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ðŸ“„ masterdump.h(12.35 KB)
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ðŸ“„ name.h(36.25 KB)
ðŸ“„ ncache.h(4.81 KB)
ðŸ“„ nsec.h(2.86 KB)
ðŸ“„ nsec3.h(7.84 KB)
ðŸ“„ nta.h(4.44 KB)
ðŸ“„ opcode.h(1007 B)
ðŸ“„ order.h(1.95 KB)
ðŸ“„ peer.h(5.83 KB)
ðŸ“„ portlist.h(2.05 KB)
ðŸ“„ private.h(1.89 KB)
ðŸ“„ rbt.h(39.67 KB)
ðŸ“„ rcode.h(2.42 KB)
ðŸ“„ rdata.h(21.11 KB)
ðŸ“„ rdataclass.h(2.2 KB)
ðŸ“„ rdatalist.h(2.51 KB)
ðŸ“„ rdataset.h(21.03 KB)
ðŸ“„ rdatasetiter.h(3.83 KB)
ðŸ“„ rdataslab.h(4.28 KB)
ðŸ“„ rdatastruct.h(60.14 KB)
ðŸ“„ rdatatype.h(2.24 KB)
ðŸ“„ request.h(10.89 KB)
ðŸ“„ resolver.h(19.75 KB)
ðŸ“„ result.h(9.07 KB)
ðŸ“„ rootns.h(892 B)
ðŸ“„ rpz.h(10.09 KB)
ðŸ“„ rriterator.h(4.13 KB)
ðŸ“„ rrl.h(6.48 KB)
ðŸ“„ sdb.h(7.05 KB)
ðŸ“„ sdlz.h(13.88 KB)
ðŸ“„ secalg.h(1.67 KB)
ðŸ“„ secproto.h(1.52 KB)
ðŸ“„ soa.h(2.13 KB)
ðŸ“„ ssu.h(8.11 KB)
ðŸ“„ stats.h(13.14 KB)
ðŸ“„ tcpmsg.h(3.07 KB)
ðŸ“„ time.h(1.66 KB)
ðŸ“„ timer.h(1.03 KB)
ðŸ“„ tkey.h(7.45 KB)
ðŸ“„ tsec.h(2.88 KB)
ðŸ“„ tsig.h(8.19 KB)
ðŸ“„ ttl.h(1.9 KB)
ðŸ“„ types.h(13.83 KB)
ðŸ“„ update.h(1.61 KB)
ðŸ“„ validator.h(6.99 KB)
ðŸ“„ version.h(868 B)
ðŸ“„ view.h(34.45 KB)
ðŸ“„ xfrin.h(2.86 KB)
ðŸ“„ zone.h(59.44 KB)
ðŸ“„ zonekey.h(777 B)
ðŸ“„ zt.h(5.43 KB)

Editing: nta.h

/*
 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 */

#ifndef DNS_NTA_H
#define DNS_NTA_H 1

/*****
 ***** Module Info
 *****/

/*! \file
 * \brief
 * The NTA module provides services for storing and retrieving negative
 * trust anchors, and determine whether a given domain is subject to
 * DNSSEC validation.
 */

#include <inttypes.h>
#include <stdbool.h>

#include <isc/buffer.h>
#include <isc/lang.h>
#include <isc/magic.h>
#include <isc/rwlock.h>
#include <isc/stdtime.h>
#include <isc/task.h>
#include <isc/timer.h>

#include <dns/types.h>
#include <dns/rdataset.h>
#include <dns/resolver.h>
#include <dns/view.h>

ISC_LANG_BEGINDECLS

struct dns_ntatable {
	/* Unlocked. */
	unsigned int		magic;
	dns_view_t		*view;
	isc_rwlock_t		rwlock;
	isc_taskmgr_t		*taskmgr;
	isc_timermgr_t		*timermgr;
	isc_task_t		*task;
	/* Locked by rwlock. */
	uint32_t		references;
	dns_rbt_t		*table;
	bool	   		shuttingdown;
};

#define NTATABLE_MAGIC		ISC_MAGIC('N', 'T', 'A', 't')
#define VALID_NTATABLE(nt) 	ISC_MAGIC_VALID(nt, NTATABLE_MAGIC)

isc_result_t
dns_ntatable_create(dns_view_t *view,
		    isc_taskmgr_t *taskmgr, isc_timermgr_t *timermgr,
		    dns_ntatable_t **ntatablep);
/*%<
 * Create an NTA table in view 'view'.
 *
 * Requires:
 *
 *\li	'view' is a valid view.
 *
 *\li	'tmgr' is a valid timer manager.
 *
 *\li	ntatablep != NULL && *ntatablep == NULL
 *
 * Ensures:
 *
 *\li	On success, *ntatablep is a valid, empty NTA table.
 *
 * Returns:
 *
 *\li	ISC_R_SUCCESS
 *\li	Any other result indicates failure.
 */

void
dns_ntatable_attach(dns_ntatable_t *source, dns_ntatable_t **targetp);
/*%<
 * Attach *targetp to source.
 *
 * Requires:
 *
 *\li	'source' is a valid ntatable.
 *
 *\li	'targetp' points to a NULL dns_ntatable_t *.
 *
 * Ensures:
 *
 *\li	*targetp is attached to source.
 */

void
dns_ntatable_detach(dns_ntatable_t **ntatablep);
/*%<
 * Detach *ntatablep from its ntatable.
 *
 * Requires:
 *
 *\li	'ntatablep' points to a valid ntatable.
 *
 * Ensures:
 *
 *\li	*ntatablep is NULL.
 *
 *\li	If '*ntatablep' is the last reference to the ntatable,
 *		all resources used by the ntatable will be freed
 */

isc_result_t
dns_ntatable_add(dns_ntatable_t *ntatable, dns_name_t *name,
		 bool force, isc_stdtime_t now,
		 uint32_t lifetime);
/*%<
 * Add a negative trust anchor to 'ntatable' for name 'name',
 * which will expire at time 'now' + 'lifetime'.  If 'force' is false,
 * then the name will be checked periodically to see if it's bogus;
 * if not, then the NTA will be allowed to expire early.
 *
 * Notes:
 *
 *\li   If an NTA already exists in the table, its expiry time
 *      is updated.
 *
 * Requires:
 *
 *\li	'ntatable' points to a valid ntatable.
 *
 *\li	'name' points to a valid name.
 *
 * Returns:
 *
 *\li	ISC_R_SUCCESS
 *
 *\li	Any other result indicates failure.
 */

isc_result_t
dns_ntatable_delete(dns_ntatable_t *ntatable, dns_name_t *keyname);
/*%<
 * Delete node(s) from 'ntatable' matching name 'keyname'
 *
 * Requires:
 *
 *\li	'ntatable' points to a valid ntatable.
 *
 *\li	'name' is not NULL
 *
 * Returns:
 *
 *\li	ISC_R_SUCCESS
 *
 *\li	Any other result indicates failure.
 */

bool
dns_ntatable_covered(dns_ntatable_t *ntatable, isc_stdtime_t now,
		     dns_name_t *name, dns_name_t *anchor);
/*%<
 * Return true if 'name' is below a non-expired negative trust
 * anchor which in turn is at or below 'anchor'.
 *
 * If 'ntatable' has not been initialized, return false.
 *
 * Requires:
 *
 *\li	'ntatable' is NULL or is a valid ntatable.
 *
 *\li	'name' is a valid absolute name.
 */

isc_result_t
dns_ntatable_totext(dns_ntatable_t *ntatable, isc_buffer_t **buf);
/*%<
 * Dump the NTA table to buffer at 'buf'
 *
 * Requires:
 * \li   "ntatable" is a valid table.
 *
 * \li   "*buf" is a valid buffer.
 */

isc_result_t
dns_ntatable_dump(dns_ntatable_t *ntatable, FILE *fp);
/*%<
 * Dump the NTA table to the file opened as 'fp'.
 */

isc_result_t
dns_ntatable_save(dns_ntatable_t *ntatable, FILE *fp);
/*%<
 * Save the NTA table to the file opened as 'fp', for later loading.
 */

void
dns_ntatable_shutdown(dns_ntatable_t *ntatable);
/*%<
 * Cancel future checks to see if NTAs can be removed.
 */

ISC_LANG_ENDDECLS

#endif /* DNS_NTA_H */

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Editing: nta.h

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