diff options
Diffstat (limited to 'src/libstrongswan/resolver/rr.h')
| -rw-r--r-- | src/libstrongswan/resolver/rr.h | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/src/libstrongswan/resolver/rr.h b/src/libstrongswan/resolver/rr.h new file mode 100644 index 000000000..109ec5135 --- /dev/null +++ b/src/libstrongswan/resolver/rr.h @@ -0,0 +1,268 @@ +/* + * Copyright (C) 2012 Reto Guadagnini + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup rr rr + * @{ @ingroup resolver + */ + +#ifndef RR_H_ +#define RR_H_ + +typedef struct rr_t rr_t; +typedef enum rr_type_t rr_type_t; +typedef enum rr_class_t rr_class_t; + +#include <library.h> + +/** + * Resource Record types. + * + * According to www.iana.org/assignments/dns-parameters (version 2012-03-13). + */ +enum rr_type_t { + /** a host address */ + RR_TYPE_A = 1, + /** an authoritative name server */ + RR_TYPE_NS = 2, + //** a mail destination (OBSOLETE - use MX */ + RR_TYPE_MD = 3, + /** a mail forwarder (OBSOLETE - use MX) */ + RR_TYPE_MF = 4, + /** the canonical name for an alias */ + RR_TYPE_CNAME = 5, + /** marks the start of a zone of authority */ + RR_TYPE_SOA = 6, + /** a mailbox domain name (EXPERIMENTAL) */ + RR_TYPE_MB = 7, + /** a mail group member (EXPERIMENTAL) */ + RR_TYPE_MG = 8, + /** a mail rename domain name (EXPERIMENTAL) */ + RR_TYPE_MR = 9, + /** a null RR (EXPERIMENTAL) */ + RR_TYPE_NULL = 10, + /** a well known service description */ + RR_TYPE_WKS = 11, + /** a domain name pointer */ + RR_TYPE_PTR = 12, + /** host information */ + RR_TYPE_HINFO = 13, + /** mailbox or mail list information */ + RR_TYPE_MINFO = 14, + /** mail exchange */ + RR_TYPE_MX = 15, + /** text strings */ + RR_TYPE_TXT = 16, + /** for Responsible Person */ + RR_TYPE_RP = 17, + /** for AFS Data Base location */ + RR_TYPE_AFSDB = 18, + /** for X.25 PSDN address */ + RR_TYPE_X25 = 19, + /** for ISDN address */ + RR_TYPE_ISDN = 20, + /** for Route Through */ + RR_TYPE_RT = 21, + /** for NSAP address, NSAP style A record */ + RR_TYPE_NSAP = 22, + /** for domain name pointer, NSAP style */ + RR_TYPE_NSAP_PTR = 23, + /** for security signature */ + RR_TYPE_SIG = 24, + /** for security key */ + RR_TYPE_KEY = 25, + /** X.400 mail mapping information */ + RR_TYPE_PX = 26, + /** Geographical Position */ + RR_TYPE_GPOS = 27, + /** ipv6 address */ + RR_TYPE_AAAA = 28, + /** Location Information */ + RR_TYPE_LOC = 29, + /** Next Domain (OBSOLETE) */ + RR_TYPE_NXT = 30, + /** Endpoint Identifier */ + RR_TYPE_EID = 31, + /** Nimrod Locator */ + RR_TYPE_NIMLOC = 32, + /** Server Selection */ + RR_TYPE_SRV = 33, + /** ATM Address */ + RR_TYPE_ATMA = 34, + /** Naming Authority Pointer */ + RR_TYPE_NAPTR = 35, + /** Key Exchanger */ + RR_TYPE_KX = 36, + /** CERT */ + RR_TYPE_CERT = 37, + /** A6 (OBSOLETE - use AAAA) */ + RR_TYPE_A6 = 38, + /** DNAME */ + RR_TYPE_DNAME = 39, + /** SINK */ + RR_TYPE_SINK = 40, + /** OPT */ + RR_TYPE_OPT = 41, + /** APL */ + RR_TYPE_APL = 42, + /** Delegation Signer */ + RR_TYPE_DS = 43, + /** SSH Key Fingerprint */ + RR_TYPE_SSHFP = 44, + /** IPSECKEY */ + RR_TYPE_IPSECKEY = 45, + /** RRSIG */ + RR_TYPE_RRSIG = 46, + /** NSEC */ + RR_TYPE_NSEC = 47, + /** DNSKEY */ + RR_TYPE_DNSKEY = 48, + /** DHCID */ + RR_TYPE_DHCID = 49, + /** NSEC3 */ + RR_TYPE_NSEC3 = 50, + /** NSEC3PARAM */ + RR_TYPE_NSEC3PARAM = 51, + + /** Unassigned 52-54 */ + + /** Host Identity Protocol */ + RR_TYPE_HIP = 55, + /** NINFO */ + RR_TYPE_NINFO = 56, + /** RKEY */ + RR_TYPE_RKEY = 57, + /** Trust Anchor LINK */ + RR_TYPE_TALINK = 58, + /** Child DS */ + RR_TYPE_CDS = 59, + + /** Unassigned 60-98 */ + + /** SPF */ + RR_TYPE_SPF = 99, + /** UINFO */ + RR_TYPE_UINFO = 100, + /** UID */ + RR_TYPE_UID = 101, + /** GID */ + RR_TYPE_GID = 102, + /** UNSPEC */ + RR_TYPE_UNSPEC = 103, + + /** Unassigned 104-248 */ + + /** Transaction Key */ + RR_TYPE_TKEY = 249, + /** Transaction Signature */ + RR_TYPE_TSIG = 250, + /** incremental transfer */ + RR_TYPE_IXFR = 251, + /** transfer of an entire zone */ + RR_TYPE_AXFR = 252, + /** mailbox-related RRs (MB, MG or MR) */ + RR_TYPE_MAILB = 253, + /** mail agent RRs (OBSOLETE - see MX) */ + RR_TYPE_MAILA = 254, + /** A request for all records */ + RR_TYPE_ANY = 255, + /** URI */ + RR_TYPE_URI = 256, + /** Certification Authority Authorization */ + RR_TYPE_CAA = 257, + + /** Unassigned 258-32767 */ + + /** DNSSEC Trust Authorities */ + RR_TYPE_TA = 32768, + /** DNSSEC Lookaside Validation */ + RR_TYPE_DLV = 32769, + + /** Unassigned 32770-65279 */ + + /** Private use 65280-65534 */ + + /** Reserved 65535 */ +}; + + +/** + * Resource Record CLASSes + */ +enum rr_class_t { + /** Internet */ + RR_CLASS_IN = 1, + /** Chaos */ + RR_CLASS_CH = 3, + /** Hesiod */ + RR_CLASS_HS = 4, + /** further CLASSes: http://wwwiana.org/assignments/dns-parameters */ +}; + + +/** + * A DNS Resource Record. + * + * Represents a Resource Record of the Domain Name System + * as defined in RFC 1035. + * + */ +struct rr_t { + + /** + * Get the NAME of the owner of this RR. + * + * @return owner name as string + */ + char *(*get_name)(rr_t *this); + + /** + * Get the type of this RR. + * + * @return RR type + */ + rr_type_t (*get_type)(rr_t *this); + + /** + * Get the class of this RR. + * + * @return RR class + */ + rr_class_t (*get_class)(rr_t *this); + + /** + * Get the Time to Live (TTL) of this RR. + * + * @return Time to Live + */ + uint32_t (*get_ttl)(rr_t *this); + + /** + * Get the content of the RDATA field as chunk. + * + * The data pointed by the chunk is still owned by the RR. + * Clone it if needed. + * + * @return RDATA field as chunk + */ + chunk_t (*get_rdata)(rr_t *this); + + /** + * Destroy the Resource Record. + */ + void (*destroy) (rr_t *this); +}; + +#endif /** RR_H_ @}*/ |