#acupoftea - mail.ontime-ae.com

System	:	Linux server1.ontime-gulf.com 4.18.0-553.5.1.el8_10.x86_64 #1 SMP Wed Jun 5 09:12:13 EDT 2024 x86_64
Software	:	Apache
Server	:	162.0.230.206
Domains	:	40 Domain
Permission	:	[ drwxr-xr-x ]
	:	/ usr / include / bind9 / dns /

216.73.216.49

Home

File validator.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_VALIDATOR_H
#define DNS_VALIDATOR_H 1

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

/*! \file dns/validator.h
 *
 * \brief
 * DNS Validator
 * This is the BIND 9 validator, the module responsible for validating the
 * rdatasets and negative responses (messages).  It makes use of zones in
 * the view and may fetch RRset to complete trust chains.  It implements
 * DNSSEC as specified in RFC 4033, 4034 and 4035.
 *
 * It can also optionally implement ISC's DNSSEC look-aside validation.
 *
 * Correct operation is critical to preventing spoofed answers from secure
 * zones being accepted.
 *
 * MP:
 *\li	The module ensures appropriate synchronization of data structures it
 *	creates and manipulates.
 *
 * Reliability:
 *\li	No anticipated impact.
 *
 * Resources:
 *\li	TBS
 *
 * Security:
 *\li	No anticipated impact.
 *
 * Standards:
 *\li	RFCs:	1034, 1035, 2181, 4033, 4034, 4035.
 */

#include <stdbool.h>

#include <isc/lang.h>
#include <isc/event.h>
#include <isc/mutex.h>

#include <dns/fixedname.h>
#include <dns/types.h>
#include <dns/rdataset.h>
#include <dns/rdatastruct.h> /* for dns_rdata_rrsig_t */

#include <dst/dst.h>

/*%
 * A dns_validatorevent_t is sent when a 'validation' completes.
 * \brief
 * 'name', 'rdataset', 'sigrdataset', and 'message' are the values that were
 * supplied when dns_validator_create() was called.  They are returned to the
 * caller so that they may be freed.
 *
 * If the RESULT is ISC_R_SUCCESS and the answer is secure then
 * proofs[] will contain the names of the NSEC records that hold the
 * various proofs.  Note the same name may appear multiple times.
 */
typedef struct dns_validatorevent {
	ISC_EVENT_COMMON(struct dns_validatorevent);
	dns_validator_t *		validator;
	isc_result_t			result;
	/*
	 * Name and type of the response to be validated.
	 */
	dns_name_t *			name;
	dns_rdatatype_t			type;
	/*
	 * Rdata and RRSIG (if any) for positive responses.
	 */
	dns_rdataset_t *		rdataset;
	dns_rdataset_t *		sigrdataset;
	/*
	 * The full response.  Required for negative responses.
	 * Also required for positive wildcard responses.
	 */
	dns_message_t *			message;
	/*
	 * Proofs to be cached.
	 */
	dns_name_t *			proofs[4];
	/*
	 * Optout proof seen.
	 */
	bool			optout;
	/*
	 * Answer is secure.
	 */
	bool			secure;
} dns_validatorevent_t;

#define DNS_VALIDATOR_NOQNAMEPROOF 0
#define DNS_VALIDATOR_NODATAPROOF 1
#define DNS_VALIDATOR_NOWILDCARDPROOF 2
#define DNS_VALIDATOR_CLOSESTENCLOSER 3

/*%
 * A validator object represents a validation in progress.
 * \brief
 * Clients are strongly discouraged from using this type directly, with
 * the exception of the 'link' field, which may be used directly for
 * whatever purpose the client desires.
 */
struct dns_validator {
	/* Unlocked. */
	unsigned int			magic;
	isc_mutex_t			lock;
	dns_view_t *			view;
	/* Locked by lock. */
	unsigned int			options;
	unsigned int			attributes;
	dns_validatorevent_t *		event;
	dns_fetch_t *			fetch;
	dns_validator_t *		subvalidator;
	dns_validator_t *		parent;
	dns_keytable_t *		keytable;
	dns_keynode_t *			keynode;
	dst_key_t *			key;
	dns_rdata_rrsig_t *		siginfo;
	isc_task_t *			task;
	isc_taskaction_t		action;
	void *				arg;
	unsigned int			labels;
	dns_rdataset_t *		currentset;
	bool			seensig;
	dns_rdataset_t *		keyset;
	dns_rdataset_t *		dsset;
	dns_rdataset_t *		soaset;
	dns_rdataset_t *		nsecset;
	dns_rdataset_t *		nsec3set;
	dns_name_t *			soaname;
	dns_rdataset_t			frdataset;
	dns_rdataset_t			fsigrdataset;
	dns_fixedname_t			fname;
	dns_fixedname_t			wild;
	dns_fixedname_t			nearest;
	dns_fixedname_t			closest;
	ISC_LINK(dns_validator_t)	link;
	dns_rdataset_t 			dlv;
	dns_fixedname_t			dlvsep;
	bool			havedlvsep;
	bool			mustbesecure;
	unsigned int			dlvlabels;
	unsigned int			depth;
	unsigned int			authcount;
	unsigned int			authfail;
	bool				failed;
	isc_stdtime_t			start;
};

/*%
 * dns_validator_create() options.
 */
#define DNS_VALIDATOR_DLV		0x0001U
#define DNS_VALIDATOR_DEFER		0x0002U
#define DNS_VALIDATOR_NOCDFLAG		0x0004U
#define DNS_VALIDATOR_NONTA		0x0008U  /*% Ignore NTA table */

ISC_LANG_BEGINDECLS

isc_result_t
dns_validator_create(dns_view_t *view, dns_name_t *name, dns_rdatatype_t type,
		     dns_rdataset_t *rdataset, dns_rdataset_t *sigrdataset,
		     dns_message_t *message, unsigned int options,
		     isc_task_t *task, isc_taskaction_t action, void *arg,
		     dns_validator_t **validatorp);
/*%<
 * Start a DNSSEC validation.
 *
 * This validates a response to the question given by
 * 'name' and 'type'.
 *
 * To validate a positive response, the response data is
 * given by 'rdataset' and 'sigrdataset'.  If 'sigrdataset'
 * is NULL, the data is presumed insecure and an attempt
 * is made to prove its insecurity by finding the appropriate
 * null key.
 *
 * The complete response message may be given in 'message',
 * to make available any authority section NSECs that may be
 * needed for validation of a response resulting from a
 * wildcard expansion (though no such wildcard validation
 * is implemented yet).  If the complete response message
 * is not available, 'message' is NULL.
 *
 * To validate a negative response, the complete negative response
 * message is given in 'message'.  The 'rdataset', and
 * 'sigrdataset' arguments must be NULL, but the 'name' and 'type'
 * arguments must be provided.
 *
 * The validation is performed in the context of 'view'.
 *
 * When the validation finishes, a dns_validatorevent_t with
 * the given 'action' and 'arg' are sent to 'task'.
 * Its 'result' field will be ISC_R_SUCCESS iff the
 * response was successfully proven to be either secure or
 * part of a known insecure domain.
 *
 * options:
 * If DNS_VALIDATOR_DLV is set the caller knows there is not a
 * trusted key and the validator should immediately attempt to validate
 * the answer by looking for an appropriate DLV RRset.
 */

void
dns_validator_send(dns_validator_t *validator);
/*%<
 * Send a deferred validation request
 *
 * Requires:
 *	'validator' to points to a valid DNSSEC validator.
 */

void
dns_validator_cancel(dns_validator_t *validator);
/*%<
 * Cancel a DNSSEC validation in progress.
 *
 * Requires:
 *\li	'validator' points to a valid DNSSEC validator, which
 *	may or may not already have completed.
 *
 * Ensures:
 *\li	It the validator has not already sent its completion
 *	event, it will send it with result code ISC_R_CANCELED.
 */

void
dns_validator_destroy(dns_validator_t **validatorp);
/*%<
 * Destroy a DNSSEC validator.
 *
 * Requires:
 *\li	'*validatorp' points to a valid DNSSEC validator.
 * \li	The validator must have completed and sent its completion
 * 	event.
 *
 * Ensures:
 *\li	All resources used by the validator are freed.
 */

ISC_LANG_ENDDECLS

#endif /* DNS_VALIDATOR_H */

Name	Type	Size	Permission	Last Modified	Actions
.	DIR	-	drwxr-xr-x	2025-02-21 10:57:15
..	DIR	-	drwxr-xr-x	2025-02-21 10:57:16
acache.h	text/x-c	13.9 KB	-rw-r--r--	2025-02-20 09:05:25
acl.h	text/x-c	7.07 KB	-rw-r--r--	2025-02-20 09:05:25
adb.h	text/x-c	22.07 KB	-rw-r--r--	2025-02-20 09:05:25
badcache.h	text/x-c	3.29 KB	-rw-r--r--	2025-02-20 09:05:25
bit.h	text/x-c	807 B	-rw-r--r--	2025-02-20 09:05:25
byaddr.h	text/x-c	3.91 KB	-rw-r--r--	2025-02-20 09:05:25
cache.h	text/x-c	8.44 KB	-rw-r--r--	2025-02-20 09:05:25
callbacks.h	text/x-c	2.22 KB	-rw-r--r--	2025-02-20 09:05:25
catz.h	text/x-c	11.56 KB	-rw-r--r--	2025-02-20 09:05:25
cert.h	text/x-c	1.43 KB	-rw-r--r--	2025-02-20 09:05:25
client.h	text/x-c	21.53 KB	-rw-r--r--	2025-02-20 09:05:25
clientinfo.h	text/x-c	1.96 KB	-rw-r--r--	2025-02-20 09:05:25
compress.h	text/x-c	6.49 KB	-rw-r--r--	2025-02-20 09:05:25
db.h	text/x-c	45.48 KB	-rw-r--r--	2025-02-20 09:05:25
dbiterator.h	text/x-c	7.25 KB	-rw-r--r--	2025-02-20 09:05:25
dbtable.h	text/x-c	3.09 KB	-rw-r--r--	2025-02-20 09:05:25
diff.h	text/x-c	6.82 KB	-rw-r--r--	2025-02-20 09:05:25
dispatch.h	text/x-c	16.04 KB	-rw-r--r--	2025-02-20 09:05:25
dlz.h	text/x-c	10.37 KB	-rw-r--r--	2025-02-20 09:05:25
dlz_dlopen.h	text/x-c	4.57 KB	-rw-r--r--	2025-02-20 09:05:25
dns64.h	text/x-c	5.5 KB	-rw-r--r--	2025-02-20 09:05:25
dnssec.h	text/x-c	11.83 KB	-rw-r--r--	2025-02-20 09:05:25
dnstap.h	text/x-c	9.14 KB	-rw-r--r--	2025-02-20 09:05:25
ds.h	text/x-c	1.2 KB	-rw-r--r--	2025-02-20 09:05:25
dsdigest.h	text/x-c	1.68 KB	-rw-r--r--	2025-02-20 09:05:25
dyndb.h	text/x-c	4.72 KB	-rw-r--r--	2025-02-20 09:05:25
ecdb.h	text/x-c	809 B	-rw-r--r--	2025-02-20 09:05:25
edns.h	text/plain	722 B	-rw-r--r--	2025-02-20 09:05:25
enumclass.h	text/plain	1.19 KB	-rw-r--r--	2025-02-20 09:05:25
enumtype.h	text/plain	8.11 KB	-rw-r--r--	2025-02-20 09:05:25
events.h	text/x-c	3.96 KB	-rw-r--r--	2025-02-20 09:05:25
fixedname.h	text/x-c	1.62 KB	-rw-r--r--	2025-02-20 09:05:25
forward.h	text/x-c	3.37 KB	-rw-r--r--	2025-02-20 09:05:25
geoip.h	text/x-c	2.73 KB	-rw-r--r--	2025-02-20 09:05:25
ipkeylist.h	text/x-c	2.13 KB	-rw-r--r--	2025-02-20 09:05:25
iptable.h	text/x-c	1.58 KB	-rw-r--r--	2025-02-20 09:05:25
journal.h	text/x-c	8.03 KB	-rw-r--r--	2025-02-20 09:05:25
keydata.h	text/x-c	1.03 KB	-rw-r--r--	2025-02-20 09:05:25
keyflags.h	text/x-c	1.25 KB	-rw-r--r--	2025-02-20 09:05:25
keytable.h	text/x-c	9.24 KB	-rw-r--r--	2025-02-20 09:05:25
keyvalues.h	text/plain	4.06 KB	-rw-r--r--	2025-02-20 09:05:25
lib.h	text/x-c	1.16 KB	-rw-r--r--	2025-02-20 09:05:25
log.h	text/x-c	3.87 KB	-rw-r--r--	2025-02-20 09:05:25
lookup.h	text/x-c	2.86 KB	-rw-r--r--	2025-02-20 09:05:25
master.h	text/x-c	11.02 KB	-rw-r--r--	2025-02-20 09:05:25
masterdump.h	text/x-c	12.35 KB	-rw-r--r--	2025-02-20 09:05:25
message.h	text/x-c	37.92 KB	-rw-r--r--	2025-02-20 09:05:25
name.h	text/x-c	36.25 KB	-rw-r--r--	2025-02-20 09:05:25
ncache.h	text/x-c	4.81 KB	-rw-r--r--	2025-02-20 09:05:25
nsec.h	text/x-c	2.86 KB	-rw-r--r--	2025-02-20 09:05:25
nsec3.h	text/x-c	7.84 KB	-rw-r--r--	2025-02-20 09:05:25
nta.h	text/x-c	4.44 KB	-rw-r--r--	2025-02-20 09:05:25
opcode.h	text/x-c	1007 B	-rw-r--r--	2025-02-20 09:05:25
order.h	text/x-c	1.95 KB	-rw-r--r--	2025-02-20 09:05:25
peer.h	text/x-c	5.83 KB	-rw-r--r--	2025-02-20 09:05:25
portlist.h	text/x-c	2.05 KB	-rw-r--r--	2025-02-20 09:05:25
private.h	text/x-c	1.89 KB	-rw-r--r--	2025-02-20 09:05:25
rbt.h	text/x-c	39.67 KB	-rw-r--r--	2025-02-20 09:05:25
rcode.h	text/x-c	2.42 KB	-rw-r--r--	2025-02-20 09:05:25
rdata.h	text/x-c	21.11 KB	-rw-r--r--	2025-02-20 09:05:25
rdataclass.h	text/x-c	2.2 KB	-rw-r--r--	2025-02-20 09:05:25
rdatalist.h	text/x-c	2.51 KB	-rw-r--r--	2025-02-20 09:05:25
rdataset.h	text/x-c	21.03 KB	-rw-r--r--	2025-02-20 09:05:25
rdatasetiter.h	text/x-c	3.83 KB	-rw-r--r--	2025-02-20 09:05:25
rdataslab.h	text/x-c	4.28 KB	-rw-r--r--	2025-02-20 09:05:25
rdatastruct.h	text/x-c	60.14 KB	-rw-r--r--	2025-02-20 09:05:25
rdatatype.h	text/x-c	2.24 KB	-rw-r--r--	2025-02-20 09:05:25
request.h	text/x-c	10.89 KB	-rw-r--r--	2025-02-20 09:05:25
resolver.h	text/x-c	19.75 KB	-rw-r--r--	2025-02-20 09:05:25
result.h	text/x-c	9.07 KB	-rw-r--r--	2025-02-20 09:05:25
rootns.h	text/x-c	892 B	-rw-r--r--	2025-02-20 09:05:25
rpz.h	text/x-c	10.09 KB	-rw-r--r--	2025-02-20 09:05:25
rriterator.h	text/x-c	4.13 KB	-rw-r--r--	2025-02-20 09:05:25
rrl.h	text/x-c	6.48 KB	-rw-r--r--	2025-02-20 09:05:25
sdb.h	text/x-c	7.05 KB	-rw-r--r--	2025-02-20 09:05:25
sdlz.h	text/x-c	13.88 KB	-rw-r--r--	2025-02-20 09:05:25
secalg.h	text/x-c	1.67 KB	-rw-r--r--	2025-02-20 09:05:25
secproto.h	text/x-c	1.52 KB	-rw-r--r--	2025-02-20 09:05:25
soa.h	text/x-c	2.13 KB	-rw-r--r--	2025-02-20 09:05:25
ssu.h	text/x-c	8.11 KB	-rw-r--r--	2025-02-20 09:05:25
stats.h	text/x-c	13.14 KB	-rw-r--r--	2025-02-20 09:05:25
tcpmsg.h	text/x-c	3.07 KB	-rw-r--r--	2025-02-20 09:05:25
time.h	text/x-c	1.66 KB	-rw-r--r--	2025-02-20 09:05:25
timer.h	text/x-c	1.03 KB	-rw-r--r--	2025-02-20 09:05:25
tkey.h	text/x-c	7.45 KB	-rw-r--r--	2025-02-20 09:05:25
tsec.h	text/x-c	2.88 KB	-rw-r--r--	2025-02-20 09:05:25
tsig.h	text/x-c	8.19 KB	-rw-r--r--	2025-02-20 09:05:25
ttl.h	text/x-c	1.9 KB	-rw-r--r--	2025-02-20 09:05:25
types.h	text/x-c	13.83 KB	-rw-r--r--	2025-02-20 09:05:25
update.h	text/x-c	1.61 KB	-rw-r--r--	2025-02-20 09:05:25
validator.h	text/x-c	6.99 KB	-rw-r--r--	2025-02-20 09:05:25
version.h	text/x-c	868 B	-rw-r--r--	2025-02-20 09:05:25
view.h	text/x-c	34.45 KB	-rw-r--r--	2025-02-20 09:05:25
xfrin.h	text/x-c	2.86 KB	-rw-r--r--	2025-02-20 09:05:25
zone.h	text/x-c	59.44 KB	-rw-r--r--	2025-02-20 09:05:25
zonekey.h	text/x-c	777 B	-rw-r--r--	2025-02-20 09:05:25
zt.h	text/x-c	5.43 KB	-rw-r--r--	2025-02-20 09:05:25

~ ACUPOFTEA - mail.ontime-ae.com