269 lines
5.6 KiB
C
269 lines
5.6 KiB
C
/*
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* Copyright (C) 2012 Reto Guadagnini
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup rr rr
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* @{ @ingroup resolver
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*/
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#ifndef RR_H_
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#define RR_H_
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typedef struct rr_t rr_t;
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typedef enum rr_type_t rr_type_t;
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typedef enum rr_class_t rr_class_t;
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#include <library.h>
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/**
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* Resource Record types.
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*
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* According to www.iana.org/assignments/dns-parameters (version 2012-03-13).
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*/
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enum rr_type_t {
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/** a host address */
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RR_TYPE_A = 1,
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/** an authoritative name server */
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RR_TYPE_NS = 2,
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//** a mail destination (OBSOLETE - use MX */
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RR_TYPE_MD = 3,
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/** a mail forwarder (OBSOLETE - use MX) */
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RR_TYPE_MF = 4,
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/** the canonical name for an alias */
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RR_TYPE_CNAME = 5,
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/** marks the start of a zone of authority */
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RR_TYPE_SOA = 6,
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/** a mailbox domain name (EXPERIMENTAL) */
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RR_TYPE_MB = 7,
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/** a mail group member (EXPERIMENTAL) */
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RR_TYPE_MG = 8,
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/** a mail rename domain name (EXPERIMENTAL) */
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RR_TYPE_MR = 9,
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/** a null RR (EXPERIMENTAL) */
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RR_TYPE_NULL = 10,
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/** a well known service description */
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RR_TYPE_WKS = 11,
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/** a domain name pointer */
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RR_TYPE_PTR = 12,
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/** host information */
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RR_TYPE_HINFO = 13,
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/** mailbox or mail list information */
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RR_TYPE_MINFO = 14,
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/** mail exchange */
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RR_TYPE_MX = 15,
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/** text strings */
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RR_TYPE_TXT = 16,
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/** for Responsible Person */
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RR_TYPE_RP = 17,
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/** for AFS Data Base location */
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RR_TYPE_AFSDB = 18,
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/** for X.25 PSDN address */
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RR_TYPE_X25 = 19,
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/** for ISDN address */
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RR_TYPE_ISDN = 20,
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/** for Route Through */
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RR_TYPE_RT = 21,
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/** for NSAP address, NSAP style A record */
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RR_TYPE_NSAP = 22,
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/** for domain name pointer, NSAP style */
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RR_TYPE_NSAP_PTR = 23,
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/** for security signature */
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RR_TYPE_SIG = 24,
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/** for security key */
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RR_TYPE_KEY = 25,
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/** X.400 mail mapping information */
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RR_TYPE_PX = 26,
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/** Geographical Position */
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RR_TYPE_GPOS = 27,
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/** ipv6 address */
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RR_TYPE_AAAA = 28,
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/** Location Information */
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RR_TYPE_LOC = 29,
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/** Next Domain (OBSOLETE) */
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RR_TYPE_NXT = 30,
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/** Endpoint Identifier */
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RR_TYPE_EID = 31,
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/** Nimrod Locator */
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RR_TYPE_NIMLOC = 32,
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/** Server Selection */
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RR_TYPE_SRV = 33,
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/** ATM Address */
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RR_TYPE_ATMA = 34,
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/** Naming Authority Pointer */
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RR_TYPE_NAPTR = 35,
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/** Key Exchanger */
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RR_TYPE_KX = 36,
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/** CERT */
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RR_TYPE_CERT = 37,
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/** A6 (OBSOLETE - use AAAA) */
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RR_TYPE_A6 = 38,
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/** DNAME */
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RR_TYPE_DNAME = 39,
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/** SINK */
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RR_TYPE_SINK = 40,
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/** OPT */
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RR_TYPE_OPT = 41,
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/** APL */
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RR_TYPE_APL = 42,
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/** Delegation Signer */
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RR_TYPE_DS = 43,
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/** SSH Key Fingerprint */
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RR_TYPE_SSHFP = 44,
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/** IPSECKEY */
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RR_TYPE_IPSECKEY = 45,
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/** RRSIG */
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RR_TYPE_RRSIG = 46,
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/** NSEC */
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RR_TYPE_NSEC = 47,
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/** DNSKEY */
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RR_TYPE_DNSKEY = 48,
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/** DHCID */
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RR_TYPE_DHCID = 49,
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/** NSEC3 */
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RR_TYPE_NSEC3 = 50,
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/** NSEC3PARAM */
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RR_TYPE_NSEC3PARAM = 51,
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/** Unassigned 52-54 */
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/** Host Identity Protocol */
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RR_TYPE_HIP = 55,
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/** NINFO */
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RR_TYPE_NINFO = 56,
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/** RKEY */
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RR_TYPE_RKEY = 57,
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/** Trust Anchor LINK */
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RR_TYPE_TALINK = 58,
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/** Child DS */
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RR_TYPE_CDS = 59,
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/** Unassigned 60-98 */
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/** SPF */
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RR_TYPE_SPF = 99,
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/** UINFO */
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RR_TYPE_UINFO = 100,
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/** UID */
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RR_TYPE_UID = 101,
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/** GID */
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RR_TYPE_GID = 102,
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/** UNSPEC */
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RR_TYPE_UNSPEC = 103,
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/** Unassigned 104-248 */
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/** Transaction Key */
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RR_TYPE_TKEY = 249,
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/** Transaction Signature */
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RR_TYPE_TSIG = 250,
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/** incremental transfer */
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RR_TYPE_IXFR = 251,
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/** transfer of an entire zone */
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RR_TYPE_AXFR = 252,
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/** mailbox-related RRs (MB, MG or MR) */
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RR_TYPE_MAILB = 253,
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/** mail agent RRs (OBSOLETE - see MX) */
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RR_TYPE_MAILA = 254,
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/** A request for all records */
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RR_TYPE_ANY = 255,
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/** URI */
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RR_TYPE_URI = 256,
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/** Certification Authority Authorization */
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RR_TYPE_CAA = 257,
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/** Unassigned 258-32767 */
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/** DNSSEC Trust Authorities */
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RR_TYPE_TA = 32768,
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/** DNSSEC Lookaside Validation */
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RR_TYPE_DLV = 32769,
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/** Unassigned 32770-65279 */
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/** Private use 65280-65534 */
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/** Reserved 65535 */
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};
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/**
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* Resource Record CLASSes
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*/
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enum rr_class_t {
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/** Internet */
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RR_CLASS_IN = 1,
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/** Chaos */
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RR_CLASS_CH = 3,
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/** Hesiod */
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RR_CLASS_HS = 4,
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/** further CLASSes: http://wwwiana.org/assignments/dns-parameters */
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};
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/**
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* A DNS Resource Record.
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*
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* Represents a Resource Record of the Domain Name System
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* as defined in RFC 1035.
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*
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*/
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struct rr_t {
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/**
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* Get the NAME of the owner of this RR.
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*
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* @return owner name as string
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*/
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char *(*get_name)(rr_t *this);
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/**
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* Get the type of this RR.
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*
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* @return RR type
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*/
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rr_type_t (*get_type)(rr_t *this);
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/**
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* Get the class of this RR.
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*
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* @return RR class
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*/
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rr_class_t (*get_class)(rr_t *this);
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/**
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* Get the Time to Live (TTL) of this RR.
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*
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* @return Time to Live
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*/
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uint32_t (*get_ttl)(rr_t *this);
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/**
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* Get the content of the RDATA field as chunk.
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*
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* The data pointed by the chunk is still owned by the RR.
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* Clone it if needed.
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*
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* @return RDATA field as chunk
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*/
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chunk_t (*get_rdata)(rr_t *this);
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/**
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* Destroy the Resource Record.
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*/
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void (*destroy) (rr_t *this);
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};
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#endif /** RR_H_ @}*/
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