....................................../////.===Shadow-Here===./////................................................ > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < ------------------------------------------------------------------------------------------------------------------- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð enü¹%½_F‘åè¿2ºQú³íªú`N¿­3ÿƒügµJžaÿ¯ÿ°~¼ÎùnúîÞÖô•òíôÁÉß®Sm¥Ü/ ‡ó˜f£Ùà<˜„xëJ¢Ù€SO3x<ªÔ©4¿+ç¶A`q@Ì“Úñè™ÍÿJÌ´ª-˜ÆtÊÛL]Ïq*‘Ý”ì#ŸÌÏãY]@ê`¿ /ªfkØB4·®£ó z—Üw¥Pxù–ÞLШKÇN¾AkÙTf½è'‰g gÆv›Øuh~ a˜Z— ïj*á¥t d£“uÒ ¨`K˜¹ßþ]b>˜]_ÏÔ6W—è2r4x•íÖ…"ƒÖNîä!¦å Ú}ýxGøÌ —@ ;ÆÚŠ=ɾ1ý8lªË¥ô ^yf®Œ¢u&2©nÙÇ›ñÂñŒ³ aPo['½»øFùà­+4ê“$!lövlüÞ=;N®3ð‚õ›DÉKòÞ>ÄÍ ¥ˆuߤ#ˆ$6ù™¥îŠ‡y’ÍB¼ çxÛ;X"WL£R÷͝*ó-¶Zu}º.s¸sšXqù–DþÿvªhüïwyŸ ¯é³lÀ:KCûÄ£Ëá\…­ ~—ýóî ¼ûûÜTÓüÇy…ŽÆvc»¾×U ñ¸žþоP÷¦ó:Ò¨¨5;Ð#&#ÖúñläÿÁœ GxÉ­/ñ‡áQðìYÉtÒwŽ¼GÔ´zàÒò ð*ëzƒ•4~H]Ø‹f ñÓÈñ`NåWçs'ÆÏW^ø¹!XžµmQ5ÃËoLœÎ: ÞËÍ¥J ù…î èo£ßPÎñ¶ž8.Œ]ʵ~5›ÙË-ù*8ÙÖß±~ ©¹rÓê‚j¶d¸{^Q'˜±Crß ÚH—#¥¥QlÀ×ëã‡DÜ«èî þ&Çæžî;ŽÏºò6ÒLÃXy&ZŒ'j‚¢Ù€IßÚù+–MGi‰*jE€‘JcÜ ÓÌ EÏÚj]o˜ Þr <¾U ûŪæÍ/šÝH¥˜b”¼ ÁñßX GP›ï2›4WŠÏà×£…íÓk†¦H·ÅíMh–*nó÷à]ÁjCº€b7<ب‹¨5車bp2:Á[UªM„QŒçiNMa#<5›áËó¸HýÊ"…×Éw¹¦ì2º–x<›»a±¸3Weü®FÝ⑱ö–î–³|LPÈ~çð~Çå‡|º kD¢µÏàÆAI %1À% ¹Ò – ”ϝS¦‰4&¶£°à Öý”û_Ò Áw°A«Å€?mÇÛgHÉ/8)á¾ÛìáöŽP í¨PŸNÙµº¦‡§Ùš"ÿ«>+ªÕ`Ê÷‡‚ß Õû˜þãÇ-PÍ.¾XV‘€ dÜ"þ4¹ ±Oú‘©t¥¦FªÄÃÄ•b‚znýu½—#cDs˜ÃiÑOˆñ×QO=*IAÊ,¶ŽZƒ;‡wøXè%EÐk:F±Ú” .Ѽ+Áu&Ç`."pÈÉw o&¿dE6‘’EqTuK@Ì¥ã™À(Êk(h‰,H}RÀIXÛš3µ1©_OqÚÒJAñ$ÊÙÜ;D3çŒ[þùœh¬Ã³™ö6ç†NY".Ú‰ï[ªŸŒ '²Ð öø_¨ÂÉ9u鶳ÒŠõTàîMØ#û¯gN‡bÙ놚X„ö …ÉeüÌ^J ‹€.œ$Æ)βÄeæW#óüßĺŸ€ ÀzwV 9oä»f4V*uB «Ë†¹ì¯žR霓æHXa=&“I4K;¯ç‹h×·"UŠ~<•â•ªVêª&ÍSÃÆÅ?ÔqÎ*mTM ˜›µwêd#[C¡©§‘D<©àb†–ÁœøvH/,í:¯( ²£|4-„Æövv„Yͼ™^Á$ˆ„¢Û[6yB.åH*V¨æ?$=˜Ñ€•î¦ñ·­(VlŸ‘ nÀt8W÷´Bûba?q9ú¶Xƒl«ÿ\ù¶’þòUÐj/õ¢Ìµ³g$ƒÎR!¸»|Oߍë’BhîÚÑ¢ñåŒJ„®„£2Ð3•ô02Nt…!£Í]Ïc½Qÿ?ˆ<&ÃA¾Ú,JˆijÌ#5yz„‰Î|ÊŽ5QÏ:‹ÐaóVÔxW—CpeÏzÐïíçôÿÅ_[hãsÐ_/ŽTÝ?BîˆííV$<¿i>²F¬_Eß¿ †bÊŒº­ÿ®Z H“C}”¬,Mp ý/Bá£w>˜YV°aƒúh+cŠ- r/[%|üUMHäQ°X»|û/@|°¥Ð !BÔ Ç¢Ä©š+Õì D«7ìN¶ŽðÔ " ƶ’ÖçtA‰Û×}{tþz­¾GÍ›k¹OEJR$ Â׃ «ëÁ"oÉôž$oUK(Ä)Ãz³Ê-‹êN[Ò3Œñbï8P 4ƒ×q¢bo|?<ÛX¬òÄÍ°L–±›(™ûG?ýË©ÚÄ–ÂDØÐ_Ç¡ô ¾–ÄÏø ×e8Ë©$ÄF¹Å‹ì[©óìl:F¾f´‹‹Xì²ï®\¬ôùƒ ÿat¥óèÒùHß0äe‚;ü×h:ÆWðHž=Ã8骣"kœ'Y?³}Tûè€>?0l›e1Lòñ„aæKÆw…hÖŠùW…ÈÆÄ0ši·›[pcwËþñiêíY/~-Á5˜!¿†A›™Mÿþ(±“t@â“ö2­´TG5yé]çå僳 .·ÍïçÝ7UÚ±Ð/Nè»,_Ï ùdj7\ï Wì4›„»c¸àešg#ÒÊ⥭áØo5‘?ÌdÝô¯ ¹kzsƒ=´#ëÉK›Ø´±-¥eW?‡çßtòTã…$Ý+qÿ±ƒ÷_3Ô¥í÷:æ–ž<·Ö‡‰Å¢ š‡%Ô—utÌÈìðžgÖÀz²À—ï÷Óîäõ{K'´È÷³yaÏÁjƒô}ž§®æÊydÕÈë5¯èˆõvÕ©ã*çD„ “z„Ó‡^^xÂ3M§A´JG‚öï 3W'ˆ.OvXè¡ÊÕª?5º7†˜(˜Ç¶#çê’¶!ÌdZK§æ 0fãaN]òY³RV ™î$®K2R¨`W!1Ôó\;Ý ýB%qæK•&ÓÈe9È0êI±žeŸß -ú@žQr¦ ö4»M¼Áè¹µmw 9 EÆE_°2ó„ŸXKWÁ×Hóì^´²GѝF©óäR†¦‰ç"V»eØ<3ùd3ÿÚ¤Žú“Gi" —‘_ÙËÎ~Üö¯¥½Î»üŸEÚŽåmÞþí ;ÞólËΦMzA"Âf(´òá;Éï(/7½ûñÌ­cïÕçлþÝz¾-ÍvÑ“pH­–ðÓj$¸Äû¤‚‘ãUBË-n“2åPkS5&‹Â|+g^œ®Ì͆d!OïäîU«c;{Û!ÅŽ«ëZ9Ókóˆ]¯ƒ›né `ÇÒ+tÆš (ØKá¾—=3œ®•vuMñg²\ï Ec€ 05±d™‡×iÇ×›UúvÌ¢£Èþ¡ÕØô¶ßÎA"ß±#Ö²ˆÊŸ¦*Ä~ij|àø.-¼'»Ú¥£h ofº¦‡VsR=N½„Î v˜Z*SÌ{=jÑB‹tê…;’HžH¯8–îDù8ñ¢|Q•bÛçš–‹m³“ê¨ åÏ^m¬Žãþ©ïêO‡½6] µÆ„Ooòü ²x}N¦Ë3ïé¿»€›HA˜m%çÞ/¿í7Fø“‹léUk)É°Œµ8Q8›:ÀŠeT*šõ~ôڝG6 ¢}`ùH­–”¡k ‰P1>š†®9z11!X wKfmÁ¦xÑ,N1Q”–æB¶M…ÒÃv6SMˆhU¬ÊPŽï‘öj=·CŒ¯u¹ƒVIЃsx4’ömÛýc塶7ßŠß 57^\wÒÐÆ k§h,Œý î«q^R½3]J¸ÇðN ‚çU¬ôº^Áì} ³f©Õœ§ˆã:FÄÈ‚é(€™?àýÓüè1Gô£¼éj‚OÅñ  #>×—ßtà 0G¥Åa뀐kßhc™À_ÉñÞ#±)GD" YîäË-ÿÙ̪ ¹™a¯´¢E\ÝÒö‚;™„ë]_ p8‰o¡ñ+^÷ 3‘'dT4œŽ ðVë½° :¬víÑ«£tßÚS-3¶“þ2 †üüʨòrš¹M{É_¤`Û¨0ìjœøJ‡:÷ÃáZ˜†@GP&œÑDGÏs¡þ¦þDGú‘1Yá9Ôþ¼ ûø…§÷8&–ÜÑnÄ_m®^üÆ`;ÉVÁJ£?â€-ßê}suÍ2sõA NÌúA磸‘îÿÚ»ƒìö·á¿±tÑÐ"Tÿü˜[@/äj¬€uüªìù¥Ý˜á8Ý´sõj 8@rˆð äþZÇD®ÿUÏ2ùôõrBzÆÏÞž>Ì™xœ“ wiÎ×7_… ¸ \#€MɁV¶¥üÕÿPÔ9Z‡ø§É8#H:ƒ5ÀÝå9ÍIŒ5åKÙŠ÷qÄ>1AÈøžj"µÂд/ªnÀ qªã}"iŸBå˜ÓÛŽ¦…&ݧ;G@—³b¯“•"´4í¨ôM¨åñC‹ïùÉó¯ÓsSH2Ý@ßáM‡ˆKÀªÛUeø/4\gnm¥‹ŸŒ qÄ b9ÞwÒNÏ_4Ég³ú=܆‚´ •â¥õeíþkjz>éÚyU«Íӝ݃6"8/ø{=Ô¢»G¥ äUw°W«,ô—¿ãㆅү¢³xŠUû™yŒ (øSópÐ 9\åTâ»—*oG$/×ÍT†Y¿1¤Þ¢_‡ ¼ „±ÍçèSaÓ 3ÛMÁBkxs‰’R/¡¤ˆÙçª(*õ„üXÌ´ƒ E§´¬EF"Ù”R/ÐNyÆÂ^°?™6¡œïJ·±$§?º>ÖüœcNÌù¯G ‹ñ2ŠBB„^·úìaz¨k:#¨Æ¨8LÎõލ£^§S&cŒÐU€ü(‡F±Š¼&P>8ÙÁ ‰ p5?0ÊƃZl¸aô š¼¡}gÿ¶zÆC²¹¬ÎÖG*HB¡O<º2#ñŒAƒ–¡B˜´É$¥›É:FÀÔx¾u?XÜÏÓvN©RS{2ʈãk9rmP¼Qq̳ è¼ÐFׄ^¡Öì fE“F4A…!ì/…¦Lƒ… … $%´¾yã@CI¬ á—3PþBÏNÿ<ý°4Ü ËÃ#ØÍ~âW«rEñw‹eùMMHß²`¬Öó½íf³:‹k˜¯÷}Z!ã¿<¥,\#öµÀ¯aÒNÆIé,Ћ–lŽ#Àæ9ÀÒS·I’½-Ïp Äz¤Š Â* ­íÄ9­< h>׍3ZkËU¹§˜ŒŠ±f­’¤º³Q ÏB?‹#µíÃ¥®@(Gs«†vI¥Mµ‹Á©e~2ú³ÁP4ìÕi‚²Ê^ö@-DþÓàlÜOÍ]n"µã:žpsŽ¢:! Aõ.ç~ÓBûH÷JCÌ]õVƒd «ú´QÙEA–¯¯Œ!.ˆˆëQ±ù œ·Ì!Õâ )ùL„ÅÀlÚè5@B…o´Æ¸XÓ&Û…O«˜”_#‡ƒ„ûÈt!¤ÁÏ›ÎÝŠ?c9 â\>lÓÁVÄÑ™£eØY]:fÝ–—ù+p{™ðè û³”g±OƒÚSù£áÁÊ„ä,ï7š²G ÕÌBk)~ÑiCµ|h#u¤¶îK¨² #²vݯGãeÖ϶ú…¾múÀ¶þÔñ‚Š9'^($¤§ò “š½{éúp÷J›ušS¹áªCÂubÃH9™D™/ZöØÁ‡¦ÝÙŸ·kð*_”.C‹{áXó€‡c¡c€§/šò/&éš÷,àéJþ‰X›fµ“C¨œ®r¬"kL‰Â_q…Z–.ÉL~O µ›zn‚¹À¦Öª7\àHµšÖ %»ÇníV[¥*Õ;ƒ#½¾HK-ÖIÊdÏEÚ#=o÷Óò³´Š: Ç?{¾+9›–‘OEáU·S€˜j"ÄaÜ ŒÛWt› á–c#a»pÔZÞdŽtWê=9éöÊ¢µ~ ë ;Öe‡Œ®:bî3±ýê¢wà¼îpêñ¹¾4 zc¾ðÖÿzdêŒÑÒŝÀ‰s6¤í³ÎÙB¿OZ”+F¤á‡3@Ñëäg©·Ž ˆèª<ù@É{&S„œÕúÀA)‰h:YÀ5^ÂÓŒ°õäU\ ùËÍû#²?Xe¬tu‰^zÒÔãë¼ÛWtEtû …‚g¶Úüâî*moGè¨7%u!]PhÏd™Ý%Îx: VÒ¦ôÊD3ÀŽKÛËãvÆî…N¯ä>Eró–ð`5 Œ%u5XkñÌ*NU%¶áœÊ:Qÿú»“úzyÏ6å-၇¾ ´ ÒÊ]y žO‘w2Äøæ…H’²f±ÎÇ.ª|¥'gîV•Ü .̘¯€šòü¤U~Ù†*¢!?ò wý,}´°ÔÞnïoKq5µb!áÓ3"vAßH¡³¡·G(ÐÎ0Îò¼MG!/ài®@—¬04*`…«é8ªøøló“ˆÊ”èù¤…ßÊoÿé'ËuÌÖ5×È¡§ˆˆfŽë9}hìâ_!!¯  B&Ëö¶‰ÀAÙNVŸ Wh›¸®XÑJì¨ú“¿÷3uj²˜¨ÍÎìë±aúŠÝå¯ð*Ó¨ôJ“yºØ)m°WýOè68†ŸÏ2—‰Ïüꪫٚ¥‹l1 ø ÏÄFjêµvÌbü¦èÝx:X±¢H=MÐß—,ˆÉÇ´(9ú¾^ÅÚ4¿m‡$âX‘å%(AlZo@½¨UOÌÕ”1ø¸jÎÀÃÃ_ µ‘Ü.œº¦Ut: Æï’!=¯uwû#,“pþÇúŒø(é@?³ü¥‘Mo §—s@Œ#)§ŒùkL}NOÆêA›¸~r½¼ÙA—HJ«eˆÖ´*¡ÓpÌŸö.m<-"³ûÈ$¬_6­åf£ïÚâj1y§ÕJ½@dÞÁr&Í\Z%D£Íñ·AZ Û³øüd/ªAi†/Й~  ‡âĮҮÏh§°b—›Û«mJžòG'[ÈYýŒ¦9psl ýÁ ®±f¦x,‰½tN ‚Xª9 ÙÖH.«Lo0×?͹m¡å†Ѽ+›2ƒF ±Ê8 7Hցϓ²Æ–m9…òŸï]Â1äN†VLâCˆU .ÿ‰Ts +ÅÎx(%¦u]6AF Š ØF鈄‘ |¢¶c±soŒ/t[a¾–û:s·`i햍ê›ËchÈ…8ßÀUÜewŒðNOƒõD%q#éû\9¤x¹&UE×G¥ Í—™$ð E6-‡¼!ýpãÔM˜ Âsìe¯ñµK¢Ç¡ùôléœ4Ö£”À Š®Ðc ^¨À}ÙËŸ§›ºê{ÊuÉC ×Sr€¤’fÉ*j!úÓ’Gsùìoîßîn%ò· àc Wp÷$¨˜)û»H ×8ŽÒ€Zj¤3ÀÙºY'Ql¦py{-6íÔCeiØp‘‡XÊîÆUߢ܂ž£Xé¼Y8þ©ëgñß}é.ÎógÒ„ÃØËø¯»™§Xýy M%@NŠ À(~áÐvu7&•,Ù˜ó€uP‡^^®=_E„jt’ 403WebShell
403Webshell
Server IP : 198.54.126.4  /  Your IP : 216.73.216.131
Web Server : Apache
System : Linux host55.registrar-servers.com 4.18.0-513.18.1.lve.2.el8.x86_64 #1 SMP Sat Mar 30 15:36:11 UTC 2024 x86_64
User : aeaw ( 7508)
PHP Version : 8.1.33
Disable Function : NONE
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : ON  |  Sudo : OFF  |  Pkexec : OFF
Directory :  /usr/include/bind9/dns/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ Back ]     

Current File : /usr/include/bind9/dns/client.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_CLIENT_H
#define DNS_CLIENT_H 1

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

/*! \file
 *
 * \brief
 * The DNS client module provides convenient programming interfaces to various
 * DNS services, such as name resolution with or without DNSSEC validation or
 * dynamic DNS update.  This module is primarily expected to be used by other
 * applications than BIND9-related ones that need such advanced DNS features.
 *
 * MP:
 *\li	In the typical usage of this module, application threads will not share
 *	the same data structures created and manipulated in this module.
 *	However, the module still ensures appropriate synchronization of such
 *	data structures.
 *
 * Resources:
 *\li	TBS
 *
 * Security:
 *\li	This module does not handle any low-level data directly, and so no
 *	security issue specific to this module is anticipated.
 */

#include <isc/event.h>
#include <isc/sockaddr.h>

#include <dns/tsig.h>
#include <dns/types.h>

#include <dst/dst.h>

typedef enum {
	updateop_none = 0,
	updateop_add = 1,
	updateop_delete = 2,
	updateop_exist = 3,
	updateop_notexist = 4,
	updateop_max = 5
} dns_client_updateop_t;

ISC_LANG_BEGINDECLS

/***
 *** Types
 ***/

/*%
 * Optional flags for dns_client_create(x).
 */
/*%< Enable caching resolution results (experimental). */
#define DNS_CLIENTCREATEOPT_USECACHE	0x8000

/*%
 * Optional flags for dns_client_(start)resolve.
 */
/*%< Do not return DNSSEC data (e.g. RRSIGS) with response. */
#define DNS_CLIENTRESOPT_NODNSSEC	0x01
/*%< Allow running external context. */
#define DNS_CLIENTRESOPT_ALLOWRUN	0x02
/*%< Don't validate responses. */
#define DNS_CLIENTRESOPT_NOVALIDATE	0x04
/*%< Don't set the CD flag on upstream queries. */
#define DNS_CLIENTRESOPT_NOCDFLAG	0x08
/*%< Use TCP transport. */
#define DNS_CLIENTRESOPT_TCP		0x10

/*%
 * Optional flags for dns_client_(start)request.
 */
/*%< Allow running external context. */
#define DNS_CLIENTREQOPT_ALLOWRUN	0x01
/*%< Use TCP transport. */
#define DNS_CLIENTREQOPT_TCP		0x02

/*%
 * Optional flags for dns_client_(start)update.
 */
/*%< Allow running external context. */
#define DNS_CLIENTUPDOPT_ALLOWRUN	0x01
/*%< Use TCP transport. */
#define DNS_CLIENTUPDOPT_TCP		0x02

/*%
 * A dns_clientresevent_t is sent when name resolution performed by a client
 * completes.  'result' stores the result code of the entire resolution
 * procedure.  'vresult' specifically stores the result code of DNSSEC
 * validation if it is performed.  When name resolution successfully completes,
 * 'answerlist' is typically non empty, containing answer names along with
 * RRsets.  It is the receiver's responsibility to free this list by calling
 * dns_client_freeresanswer() before freeing the event structure.
 */
typedef struct dns_clientresevent {
	ISC_EVENT_COMMON(struct dns_clientresevent);
	isc_result_t	result;
	isc_result_t	vresult;
	dns_namelist_t	answerlist;
} dns_clientresevent_t;		/* too long? */

/*%
 * Status of a dynamic update procedure.
 */
typedef enum {
	dns_clientupdatestate_prepare,	/*%< no updates have been sent */
	dns_clientupdatestate_sent,	/*%< updates were sent, no response */
	dns_clientupdatestate_done	/*%< update was sent and succeeded */
} dns_clientupdatestate_t;

/*%
 * A dns_clientreqevent_t is sent when a DNS request is completed by a client.
 * 'result' stores the result code of the entire transaction.
 * If the transaction is successfully completed but the response packet cannot
 * be parsed, 'result' will store the result code of dns_message_parse().
 * If the response packet is received, 'rmessage' will contain the response
 * message, whether it is successfully parsed or not.
 */
typedef struct dns_clientreqevent {
	ISC_EVENT_COMMON(struct dns_clientreqevent);
	isc_result_t	result;
	dns_message_t	*rmessage;
} dns_clientreqevent_t;		/* too long? */

/*%
 * A dns_clientupdateevent_t is sent when dynamic update performed by a client
 * completes.  'result' stores the result code of the entire update procedure.
 * 'state' specifies the status of the update procedure when this event is
 * sent.  This can be used as a hint by the receiver to determine whether
 * the update attempt was ever made.  In particular, if the state is
 * dns_clientupdatestate_prepare, the receiver can be sure that the requested
 * update was not applied.
 */
typedef struct dns_clientupdateevent {
	ISC_EVENT_COMMON(struct dns_clientupdateevent);
	isc_result_t		result;
	dns_clientupdatestate_t	state;
} dns_clientupdateevent_t;	/* too long? */

isc_result_t
dns_client_create(dns_client_t **clientp, unsigned int options);

isc_result_t
dns_client_createx(isc_mem_t *mctx, isc_appctx_t *actx, isc_taskmgr_t *taskmgr,
		   isc_socketmgr_t *socketmgr, isc_timermgr_t *timermgr,
		   unsigned int options, dns_client_t **clientp);

isc_result_t
dns_client_createx2(isc_mem_t *mctx, isc_appctx_t *actx,
	   isc_taskmgr_t *taskmgr, isc_socketmgr_t *socketmgr,
	   isc_timermgr_t *timermgr, unsigned int options,
	   dns_client_t **clientp,
	   isc_sockaddr_t *localaddr4, isc_sockaddr_t *localaddr6);
/*%<
 * Create a DNS client.  These functions create a new client object with
 * minimal internal resources such as the default 'view' for the IN class and
 * IPv4/IPv6 dispatches for the view.
 *
 * dns_client_createx() takes 'manager' arguments so that the caller can
 * control the behavior of the client through the underlying event framework.
 * On the other hand, dns_client_create() simplifies the interface and creates
 * the managers internally.  A DNS client object created via
 * dns_client_create() is expected to be used by an application that only needs
 * simple synchronous services or by a thread-based application.
 *
 * dns_client_createx2 takes two additional parameters, 'localaddr4' and
 * 'localaddr6', to specify the local address to use for each family. If
 * both are set to NULL, then wildcard addresses will be used for both
 * families. If only one is NULL, then the other address will be used
 * as the local address, and the other protocol family will not be used.
 *
 * If the DNS_CLIENTCREATEOPT_USECACHE flag is set in 'options',
 * dns_client_create(x) will create a cache database with the view.
 *
 * Requires:
 *
 *\li	'mctx' is a valid memory context.
 *
 *\li	'actx' is a valid application context.
 *
 *\li	'taskmgr' is a valid task manager.
 *
 *\li	'socketmgr' is a valid socket manager.
 *
 *\li	'timermgr' is a valid timer manager.
 *
 *\li	clientp != NULL && *clientp == NULL.
 *
 * Returns:
 *
 *\li	#ISC_R_SUCCESS				On success.
 *
 *\li	Anything else				Failure.
 */

void
dns_client_destroy(dns_client_t **clientp);
/*%<
 * Destroy 'client'.
 *
 * Requires:
 *
 *\li	'*clientp' is a valid client.
 *
 * Ensures:
 *
 *\li	*clientp == NULL.
 */

isc_result_t
dns_client_setservers(dns_client_t *client, dns_rdataclass_t rdclass,
		      dns_name_t *name_space, isc_sockaddrlist_t *addrs);
/*%<
 * Specify a list of addresses of recursive name servers that the client will
 * use for name resolution.  A view for the 'rdclass' class must be created
 * beforehand.  If 'name_space' is non NULL, the specified server will be used
 * if and only if the query name is a subdomain of 'name_space'.  When servers
 * for multiple 'name_space's are provided, and a query name is covered by
 * more than one 'name_space', the servers for the best (longest) matching
 * name_space will be used.  If 'name_space' is NULL, it works as if
 * dns_rootname (.) were specified.
 *
 * Requires:
 *
 *\li	'client' is a valid client.
 *
 *\li	'name_space' is NULL or a valid name.
 *
 *\li	'addrs' != NULL.
 *
 * Returns:
 *
 *\li	#ISC_R_SUCCESS				On success.
 *
 *\li	Anything else				Failure.
 */

isc_result_t
dns_client_clearservers(dns_client_t *client, dns_rdataclass_t rdclass,
			dns_name_t *name_space);
/*%<
 * Remove configured recursive name servers for the 'rdclass' and 'name_space'
 * from the client.  See the description of dns_client_setservers() for
 * the requirements about 'rdclass' and 'name_space'.
 *
 * Requires:
 *
 *\li	'client' is a valid client.
 *
 *\li	'name_space' is NULL or a valid name.
 *
 * Returns:
 *
 *\li	#ISC_R_SUCCESS				On success.
 *
 *\li	Anything else				Failure.
 */

isc_result_t
dns_client_setdlv(dns_client_t *client, dns_rdataclass_t rdclass,
		  const char *dlvname);
/*%<
 * Specify a name to use for DNSSEC lookaside validation.
 * If a trusted key has been added for that name, then DLV will be
 * used during validation.  If 'dlvname' is NULL, then DLV will no
 * longer be used for this client.
 *
 * Requires:
 *
 *\li	'client' is a valid client.
 *
 * Returns:
 *
 *\li	#ISC_R_SUCCESS				On success.
 *
 *\li	Anything else				Failure.
 */

isc_result_t
dns_client_resolve(dns_client_t *client, dns_name_t *name,
		   dns_rdataclass_t rdclass, dns_rdatatype_t type,
		   unsigned int options, dns_namelist_t *namelist);

isc_result_t
dns_client_startresolve(dns_client_t *client, dns_name_t *name,
			dns_rdataclass_t rdclass, dns_rdatatype_t type,
			unsigned int options, isc_task_t *task,
			isc_taskaction_t action, void *arg,
			dns_clientrestrans_t **transp);
/*%<
 * Perform name resolution for 'name', 'rdclass', and 'type'.
 *
 * If any trusted keys are configured and the query name is considered to
 * belong to a secure zone, these functions also validate the responses
 * using DNSSEC by default.  If the DNS_CLIENTRESOPT_NOVALIDATE flag is set
 * in 'options', DNSSEC validation is disabled regardless of the configured
 * trusted keys or the query name. With DNS_CLIENTRESOPT_NODNSSEC
 * DNSSEC data is not returned with response. DNS_CLIENTRESOPT_NOCDFLAG
 * disables the CD flag on queries, DNS_CLIENTRESOPT_TCP switches to
 * the TCP (vs. UDP) transport.
 *
 * dns_client_resolve() provides a synchronous service.  This function starts
 * name resolution internally and blocks until it completes.  On success,
 * 'namelist' will contain a list of answer names, each of which has
 * corresponding RRsets.  The caller must provide a valid empty list, and
 * is responsible for freeing the list content via dns_client_freeresanswer().
 * If the name resolution fails due to an error in DNSSEC validation,
 * dns_client_resolve() returns the result code indicating the validation
 * error. Otherwise, it returns the result code of the entire resolution
 * process, either success or failure.
 *
 * It is typically expected that the client object passed to
 * dns_client_resolve() was created via dns_client_create() and has its own
 * managers and contexts.  However, if the DNS_CLIENTRESOPT_ALLOWRUN flag is
 * set in 'options', this function performs the synchronous service even if
 * it does not have its own manager and context structures.
 *
 * dns_client_startresolve() is an asynchronous version of dns_client_resolve()
 * and does not block.  When name resolution is completed, 'action' will be
 * called with the argument of a 'dns_clientresevent_t' object, which contains
 * the resulting list of answer names (on success).  On return, '*transp' is
 * set to an opaque transaction ID so that the caller can cancel this
 * resolution process.
 *
 * Requires:
 *
 *\li	'client' is a valid client.
 *
 *\li	'addrs' != NULL.
 *
 *\li	'name' is a valid name.
 *
 *\li	'namelist' != NULL and is not empty.
 *
 *\li	'task' is a valid task.
 *
 *\li	'transp' != NULL && *transp == NULL;
 *
 * Returns:
 *
 *\li	#ISC_R_SUCCESS				On success.
 *
 *\li	Anything else				Failure.
 */

void
dns_client_cancelresolve(dns_clientrestrans_t *trans);
/*%<
 * Cancel an ongoing resolution procedure started via
 * dns_client_startresolve().
 *
 * Notes:
 *
 *\li	If the resolution procedure has not completed, post its CLIENTRESDONE
 *	event with a result code of #ISC_R_CANCELED.
 *
 * Requires:
 *
 *\li	'trans' is a valid transaction ID.
 */

void
dns_client_destroyrestrans(dns_clientrestrans_t **transp);
/*%<
 * Destroy name resolution transaction state identified by '*transp'.
 *
 * Requires:
 *
 *\li	'*transp' is a valid transaction ID.
 *
 *\li	The caller has received the CLIENTRESDONE event (either because the
 *	resolution completed or because dns_client_cancelresolve() was called).
 *
 * Ensures:
 *
 *\li	*transp == NULL.
 */

void
dns_client_freeresanswer(dns_client_t *client, dns_namelist_t *namelist);
/*%<
 * Free resources allocated for the content of 'namelist'.
 *
 * Requires:
 *
 *\li	'client' is a valid client.
 *
 *\li	'namelist' != NULL.
 */

isc_result_t
dns_client_addtrustedkey(dns_client_t *client, dns_rdataclass_t rdclass,
			 dns_name_t *keyname, isc_buffer_t *keydatabuf);
/*%<
 * Add a DNSSEC trusted key for the 'rdclass' class.  A view for the 'rdclass'
 * class must be created beforehand.  'keyname' is the DNS name of the key,
 * and 'keydatabuf' stores the resource data of the key.
 *
 * Requires:
 *
 *\li	'client' is a valid client.
 *
 *\li	'keyname' is a valid name.
 *
 *\li	'keydatabuf' is a valid buffer.
 *
 * Returns:
 *
 *\li	#ISC_R_SUCCESS				On success.
 *
 *\li	Anything else				Failure.
 */

isc_result_t
dns_client_request(dns_client_t *client, dns_message_t *qmessage,
		   dns_message_t *rmessage, isc_sockaddr_t *server,
		   unsigned int options, unsigned int parseoptions,
		   dns_tsec_t *tsec, unsigned int timeout,
		   unsigned int udptimeout, unsigned int udpretries);

isc_result_t
dns_client_startrequest(dns_client_t *client, dns_message_t *qmessage,
			dns_message_t *rmessage, isc_sockaddr_t *server,
			unsigned int options, unsigned int parseoptions,
			dns_tsec_t *tsec, unsigned int timeout,
			unsigned int udptimeout, unsigned int udpretries,
			isc_task_t *task, isc_taskaction_t action, void *arg,
			dns_clientreqtrans_t **transp);

/*%<
 * Send a DNS request containing a query message 'query' to 'server'.
 *
 * 'parseoptions' will be used when the response packet is parsed, and will be
 * passed to dns_message_parse() via dns_request_getresponse().  See
 * dns_message_parse() for more details.
 *
 * 'tsec' is a transaction security object containing, e.g. a TSIG key for
 * authenticating the request/response transaction.  This is optional and can
 * be NULL, in which case this library performs the transaction  without any
 * transaction authentication.
 *
 * 'timeout', 'udptimeout', and 'udpretries' are passed to
 * dns_request_createvia3().  See dns_request_createvia3() for more details.
 *
 * dns_client_request() provides a synchronous service.  This function sends
 * the request and blocks until a response is received.  On success,
 * 'rmessage' will contain the response message.  The caller must provide a
 * valid initialized message.
 *
 * It is usually expected that the client object passed to
 * dns_client_request() was created via dns_client_create() and has its own
 * managers and contexts.  However, if the DNS_CLIENTREQOPT_ALLOWRUN flag is
 * set in 'options', this function performs the synchronous service even if
 * it does not have its own manager and context structures.
 *
 * dns_client_startrequest() is an asynchronous version of dns_client_request()
 * and does not block.  When the transaction is completed, 'action' will be
 * called with the argument of a 'dns_clientreqevent_t' object, which contains
 * the response message (on success).  On return, '*transp' is set to an opaque
 * transaction ID so that the caller can cancel this request.
 *
 * DNS_CLIENTREQOPT_TCP switches to the TCP (vs. UDP) transport.
 *
 * Requires:
 *
 *\li	'client' is a valid client.
 *
 *\li	'qmessage' and 'rmessage' are valid initialized message.
 *
 *\li	'server' is a valid socket address structure.
 *
 *\li	'task' is a valid task.
 *
 *\li	'transp' != NULL && *transp == NULL;
 *
 * Returns:
 *
 *\li	#ISC_R_SUCCESS				On success.
 *
 *\li	Anything else				Failure.
 *
 *\li	Any result that dns_message_parse() can return.
 */

void
dns_client_cancelrequest(dns_clientreqtrans_t *transp);
/*%<
 * Cancel an ongoing DNS request procedure started via
 * dns_client_startrequest().
 *
 * Notes:
 *
 *\li	If the request procedure has not completed, post its CLIENTREQDONE
 *	event with a result code of #ISC_R_CANCELED.
 *
 * Requires:
 *
 *\li	'trans' is a valid transaction ID.
 */

void
dns_client_destroyreqtrans(dns_clientreqtrans_t **transp);
/*%
 * Destroy DNS request transaction state identified by '*transp'.
 *
 * Requires:
 *
 *\li	'*transp' is a valid transaction ID.
 *
 *\li	The caller has received the CLIENTREQDONE event (either because the
 *	request completed or because dns_client_cancelrequest() was called).
 *
 * Ensures:
 *
 *\li	*transp == NULL.
 */

isc_result_t
dns_client_update(dns_client_t *client, dns_rdataclass_t rdclass,
		  dns_name_t *zonename, dns_namelist_t *prerequisites,
		  dns_namelist_t *updates, isc_sockaddrlist_t *servers,
		  dns_tsec_t *tsec, unsigned int options);

isc_result_t
dns_client_startupdate(dns_client_t *client, dns_rdataclass_t rdclass,
		       dns_name_t *zonename, dns_namelist_t *prerequisites,
		       dns_namelist_t *updates, isc_sockaddrlist_t *servers,
		       dns_tsec_t *tsec, unsigned int options,
		       isc_task_t *task, isc_taskaction_t action, void *arg,
		       dns_clientupdatetrans_t **transp);
/*%<
 * Perform DNS dynamic update for 'updates' of the 'rdclass' class with
 * optional 'prerequisites'.
 *
 * 'updates' are a list of names with associated RRsets to be updated.
 *
 * 'prerequisites' are a list of names with associated RRsets corresponding to
 * the prerequisites of the updates.  This is optional and can be NULL, in
 * which case the prerequisite section of the update message will be empty.
 *
 * Both 'updates' and 'prerequisites' must be constructed as specified in
 * RFC2136.
 *
 * 'zonename' is the name of the zone in which the updated names exist.
 * This is optional and can be NULL.  In this case, these functions internally
 * identify the appropriate zone through some queries for the SOA RR starting
 * with the first name in prerequisites or updates.
 *
 * 'servers' is a list of authoritative servers to which the update message
 * should be sent.  This is optional and can be NULL.  In this case, these
 * functions internally identify the appropriate primary server name and its
 * addresses through some queries for the SOA RR (like the case of zonename)
 * and supplemental A/AAAA queries for the server name.
 * Note: The client module generally assumes the given addresses are of the
 * primary server of the corresponding zone.  It will work even if a secondary
 * server address is specified as long as the server allows update forwarding,
 * it is generally discouraged to include secondary server addresses unless
 * there's strong reason to do so.
 *
 * 'tsec' is a transaction security object containing, e.g. a TSIG key for
 * authenticating the update transaction (and the supplemental query/response
 * transactions if the server is specified).  This is optional and can be
 * NULL, in which case the library tries the update without any transaction
 * authentication.
 *
 * It is typically expected that the client object passed to
 * dns_client_update() was created via dns_client_create() and has its own
 * managers and contexts.  However, if the DNS_CLIENTUPDOPT_ALLOWRUN flag is
 * set in 'options', this function performs the synchronous service even if
 * it does not have its own manager and context structures.
 *
 * dns_client_update() provides a synchronous service.  This function blocks
 * until the entire update procedure completes, including the additional
 * queries when necessary.
 *
 * dns_client_startupdate() is an asynchronous version of dns_client_update().
 * It immediately returns (typically with *transp being set to a non-NULL
 * pointer), and performs the update procedure through a set of internal
 * events.  All transactions including the additional query exchanges are
 * performed as a separate event, so none of these events cause blocking
 * operation.  When the update procedure completes, the specified function
 * 'action' will be called with the argument of a 'dns_clientupdateevent_t'
 * structure.  On return, '*transp' is set to an opaque transaction ID so that
 * the caller can cancel this update process.
 *
 * DNS_CLIENTUPDOPT_TCP switches to the TCP (vs. UDP) transport.
 *
 * Requires:
 *
 *\li	'client' is a valid client.
 *
 *\li	'updates' != NULL.
 *
 *\li	'task' is a valid task.
 *
 *\li	'transp' != NULL && *transp == NULL;
 *
 * Returns:
 *
 *\li	#ISC_R_SUCCESS				On success.
 *
 *\li	Anything else				Failure.
 */

void
dns_client_cancelupdate(dns_clientupdatetrans_t *trans);
/*%<
 * Cancel an ongoing dynamic update procedure started via
 * dns_client_startupdate().
 *
 * Notes:
 *
 *\li	If the update procedure has not completed, post its UPDATEDONE
 *	event with a result code of #ISC_R_CANCELED.
 *
 * Requires:
 *
 *\li	'trans' is a valid transaction ID.
 */

void
dns_client_destroyupdatetrans(dns_clientupdatetrans_t **transp);
/*%<
 * Destroy dynamic update transaction identified by '*transp'.
 *
 * Requires:
 *
 *\li	'*transp' is a valid transaction ID.
 *
 *\li	The caller has received the UPDATEDONE event (either because the
 *	update completed or because dns_client_cancelupdate() was called).
 *
 * Ensures:
 *
 *\li	*transp == NULL.
 */

isc_result_t
dns_client_updaterec(dns_client_updateop_t op, dns_name_t *owner,
		     dns_rdatatype_t type, dns_rdata_t *source,
		     dns_ttl_t ttl, dns_name_t *target,
		     dns_rdataset_t *rdataset, dns_rdatalist_t *rdatalist,
		     dns_rdata_t *rdata, isc_mem_t *mctx);
/*%<
 * TBD
 */

void
dns_client_freeupdate(dns_name_t **namep);
/*%<
 * TBD
 */

isc_mem_t *
dns_client_mctx(dns_client_t *client);

ISC_LANG_ENDDECLS

#endif /* DNS_CLIENT_H */

Youez - 2016 - github.com/yon3zu
LinuXploit