FM / dns

/usr/include/bind9/dns

Name	Size	Mode	Actions
acl.h	6477	0644	edit dl rm
adb.h	22267	0644	edit dl rm
badcache.h	3387	0644	edit dl rm
bit.h	798	0644	edit dl rm
byaddr.h	3598	0644	edit dl rm
cache.h	8730	0644	edit dl rm
callbacks.h	2280	0644	edit dl rm
catz.h	11881	0644	edit dl rm
cert.h	1465	0644	edit dl rm
client.h	14527	0644	edit dl rm
clientinfo.h	2015	0644	edit dl rm
compress.h	7047	0644	edit dl rm
db.h	50446	0644	edit dl rm
dbiterator.h	7385	0644	edit dl rm
dbtable.h	3167	0644	edit dl rm
diff.h	7039	0644	edit dl rm
dispatch.h	15538	0644	edit dl rm
dlz.h	10876	0644	edit dl rm
dlz_dlopen.h	4394	0644	edit dl rm
dns64.h	5720	0644	edit dl rm
dnsrps.h	2572	0644	edit dl rm
dnssec.h	12841	0644	edit dl rm
dnstap.h	10193	0644	edit dl rm
ds.h	1665	0644	edit dl rm
dsdigest.h	1713	0644	edit dl rm
dyndb.h	4869	0644	edit dl rm
ecdb.h	806	0644	edit dl rm
ecs.h	1250	0644	edit dl rm
edns.h	783	0644	edit dl rm
enumclass.h	1220	0644	edit dl rm
enumtype.h	8485	0644	edit dl rm
events.h	4451	0644	edit dl rm
fixedname.h	1652	0644	edit dl rm
forward.h	3060	0644	edit dl rm
geoip.h	2340	0644	edit dl rm
ipkeylist.h	2219	0644	edit dl rm
iptable.h	1521	0644	edit dl rm
journal.h	9712	0644	edit dl rm
kasp.h	12124	0644	edit dl rm
keydata.h	1047	0644	edit dl rm
keyflags.h	1277	0644	edit dl rm
keymgr.h	4107	0644	edit dl rm
keytable.h	7871	0644	edit dl rm
keyvalues.h	4083	0644	edit dl rm
lib.h	993	0644	edit dl rm
librpz.h	31401	0644	edit dl rm
lmdb.h	779	0644	edit dl rm
log.h	4029	0644	edit dl rm
lookup.h	2921	0644	edit dl rm
master.h	8786	0644	edit dl rm
masterdump.h	10133	0644	edit dl rm
message.h	39567	0644	edit dl rm
name.h	37781	0644	edit dl rm
ncache.h	4960	0644	edit dl rm
nsec.h	3065	0644	edit dl rm
nsec3.h	8258	0644	edit dl rm
nta.h	4846	0644	edit dl rm
opcode.h	1006	0644	edit dl rm
order.h	2010	0644	edit dl rm
peer.h	6475	0644	edit dl rm
portlist.h	2101	0644	edit dl rm
private.h	1962	0644	edit dl rm
rbt.h	37484	0644	edit dl rm
rcode.h	2472	0644	edit dl rm
rdata.h	22564	0644	edit dl rm
rdataclass.h	2248	0644	edit dl rm
rdatalist.h	2557	0644	edit dl rm
rdataset.h	18714	0644	edit dl rm
rdatasetiter.h	3912	0644	edit dl rm
rdataslab.h	4267	0644	edit dl rm
rdatastruct.h	62703	0644	edit dl rm
rdatatype.h	2290	0644	edit dl rm
request.h	9187	0644	edit dl rm
resolver.h	20152	0644	edit dl rm
result.h	9196	0644	edit dl rm
rootns.h	891	0644	edit dl rm
rpz.h	12156	0644	edit dl rm
rriterator.h	4214	0644	edit dl rm
rrl.h	6959	0644	edit dl rm
sdb.h	7350	0644	edit dl rm
sdlz.h	14090	0644	edit dl rm
secalg.h	1705	0644	edit dl rm
secproto.h	1556	0644	edit dl rm
soa.h	2179	0644	edit dl rm
ssu.h	7182	0644	edit dl rm
stats.h	24689	0644	edit dl rm
tcpmsg.h	3128	0644	edit dl rm
time.h	1693	0644	edit dl rm
timer.h	1050	0644	edit dl rm
tkey.h	7655	0644	edit dl rm
tsec.h	2946	0644	edit dl rm
tsig.h	8497	0644	edit dl rm
ttl.h	1876	0644	edit dl rm
types.h	14584	0644	edit dl rm
update.h	2004	0644	edit dl rm
validator.h	6679	0644	edit dl rm
version.h	679	0644	edit dl rm
view.h	35341	0644	edit dl rm
xfrin.h	2314	0644	edit dl rm
zone.h	65543	0644	edit dl rm
zonekey.h	776	0644	edit dl rm
zoneverify.h	1393	0644	edit dl rm
zt.h	5241	0644	edit dl rm

Edit: /usr/include/bind9/dns/dns64.h (5720B)

/*
 * 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_DNS64_H
#define DNS_DNS64_H 1

#include <stdbool.h>

#include <isc/lang.h>

#include <dns/types.h>

ISC_LANG_BEGINDECLS

/*
 * dns_dns64_create() flags.
 */
#define DNS_DNS64_RECURSIVE_ONLY          \
	0x01 /* If set then this record   \
	      * only applies to recursive \
	      * queries.                  \
	      */
#define DNS_DNS64_BREAK_DNSSEC            \
	0x02 /* If set then still perform \
	      * DNSSEC synthesis even     \
	      * though the result would   \
	      * fail validation.          \
	      */

/*
 * dns_dns64_aaaaok() and dns_dns64_aaaafroma() flags.
 */
#define DNS_DNS64_RECURSIVE 0x01 /* Recursive query. */
#define DNS_DNS64_DNSSEC    0x02 /* DNSSEC sensitive query. */

isc_result_t
dns_dns64_create(isc_mem_t *mctx, const isc_netaddr_t *prefix,
		 unsigned int prefixlen, const isc_netaddr_t *suffix,
		 dns_acl_t *client, dns_acl_t *mapped, dns_acl_t *excluded,
		 unsigned int flags, dns_dns64_t **dns64);
/*
 * Create a dns64 record which is used to identify the set of clients
 * it applies to and how to perform the DNS64 synthesis.
 *
 * 'prefix' and 'prefixlen' defined the leading bits of the AAAA records
 * to be synthesised.  'suffix' defines the bits after the A records bits.
 * If suffix is NULL zeros will be used for these bits.  'client' defines
 * for which clients this record applies.  If 'client' is NULL then all
 * clients apply.  'mapped' defines which A records are candidated for
 * mapping.  If 'mapped' is NULL then all A records will be mapped.
 * 'excluded' defines which AAAA are to be treated as non-existent for the
 * purposed of determining whether to perform synthesis.  If 'excluded' is
 * NULL then no AAAA records prevent synthesis.
 *
 * If DNS_DNS64_RECURSIVE_ONLY is set then the record will only match if
 * DNS_DNS64_RECURSIVE is set when calling  dns_dns64_aaaaok() and
 * dns_dns64_aaaafroma().
 *
 * If DNS_DNS64_BREAK_DNSSEC is set then the record will still apply if
 * DNS_DNS64_DNSSEC is set when calling  dns_dns64_aaaaok() and
 * dns_dns64_aaaafroma() otherwise the record will be ignored.
 *
 * Requires:
 *      'mctx'          to be valid.
 *      'prefix'        to be valid and the address family to AF_INET6.
 *      'prefixlen'     to be one of 32, 40, 48, 56, 72 and 96.
 *                      the bits not covered by prefixlen in prefix to
 *                      be zero.
 *      'suffix'        to be NULL or the address family be set to AF_INET6
 *                      and the leading 'prefixlen' + 32 bits of the 'suffix'
 *                      to be zero.  If 'prefixlen' is 40, 48 or 56 then the
 *                      the leading 'prefixlen' + 40 bits of 'suffix' must be
 *                      zero.
 *	'client'	to be NULL or a valid acl.
 *	'mapped'	to be NULL or a valid acl.
 *	'excluded'	to be NULL or a valid acl.
 *
 * Returns:
 *	ISC_R_SUCCESS
 *	ISC_R_NOMEMORY
 */

void
dns_dns64_destroy(dns_dns64_t **dns64p);
/*
 * Destroys a dns64 record.
 *
 * Requires the record to not be linked.
 */

isc_result_t
dns_dns64_aaaafroma(const dns_dns64_t *dns64, const isc_netaddr_t *reqaddr,
		    const dns_name_t *reqsigner, const dns_aclenv_t *env,
		    unsigned int flags, unsigned char *a, unsigned char *aaaa);
/*
 * dns_dns64_aaaafroma() determines whether to perform a DNS64 address
 * synthesis from 'a' based on 'dns64', 'reqaddr', 'reqsigner', 'env',
 * 'flags' and 'aaaa'.  If synthesis is performed then the result is
 * written to '*aaaa'.
 *
 * The synthesised address will be of the form:
 *
 *	 <prefix bits><a bits><suffix bits>
 *
 * If <a bits> straddle bits 64-71 of the AAAA record, then 8 zero bits will
 * be inserted at bits 64-71.
 *
 * Requires:
 *	'dns64'		to be valid.
 *	'reqaddr'	to be valid.
 *	'reqsigner'	to be NULL or valid.
 *	'env'		to be valid.
 *	'a'		to point to a IPv4 address in network order.
 *	'aaaa'		to point to a IPv6 address buffer in network order.
 *
 * Returns:
 *	ISC_R_SUCCESS		if synthesis was performed.
 *	DNS_R_DISALLOWED	if there is no match.
 */

dns_dns64_t *
dns_dns64_next(dns_dns64_t *dns64);
/*
 * Return the next dns64 record in the list.
 */

void
dns_dns64_append(dns_dns64list_t *list, dns_dns64_t *dns64);
/*
 * Append the dns64 record to the list.
 */

void
dns_dns64_unlink(dns_dns64list_t *list, dns_dns64_t *dns64);
/*
 * Unlink the dns64 record from the list.
 */

bool
dns_dns64_aaaaok(const dns_dns64_t *dns64, const isc_netaddr_t *reqaddr,
		 const dns_name_t *reqsigner, const dns_aclenv_t *env,
		 unsigned int flags, dns_rdataset_t *rdataset, bool *aaaaok,
		 size_t aaaaoklen);
/*
 * Determine if there are any non-excluded AAAA records in from the
 * matching dns64 records in the list starting at 'dns64'.  If there
 * is a non-excluded address return true.  If all addresses are
 * excluded in the matched records return false.   If no records
 * match then return true.
 *
 * If aaaaok is defined then dns_dns64_aaaaok() return a array of which
 * addresses in 'rdataset' were deemed to not be exclude by any matching
 * record.  If there are no matching records then all entries are set
 * to true.
 *
 * Requires
 * 	'rdataset'	to be valid and to be for type AAAA and class IN.
 *	'aaaaoklen'	must match the number of records in 'rdataset'
 *			if 'aaaaok' in non NULL.
 */

ISC_LANG_ENDDECLS

#endif /* DNS_DNS64_H */

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