/*
* Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#import "OFObject.h"
#import "OFSocket.h"
#import "OFString.h"
OF_ASSUME_NONNULL_BEGIN
/** @file */
@class OFArray OF_GENERIC(ObjectType);
@class OFData;
/**
* @brief The DNS class.
*/
typedef enum {
/** IN */
OFDNSClassIN = 1,
/** Any class. Only for queries. */
OFDNSClassAny = 255,
} OFDNSClass;
/**
* @brief The type of a DNS resource record.
*/
typedef enum {
/** A */
OFDNSRecordTypeA = 1,
/** NS */
OFDNSRecordTypeNS = 2,
/** CNAME */
OFDNSRecordTypeCNAME = 5,
/** SOA */
OFDNSRecordTypeSOA = 6,
/** PTR */
OFDNSRecordTypePTR = 12,
/** HINFO */
OFDNSRecordTypeHINFO = 13,
/** MX */
OFDNSRecordTypeMX = 15,
/** TXT */
OFDNSRecordTypeTXT = 16,
/** RP */
OFDNSRecordTypeRP = 17,
/** AAAA */
OFDNSRecordTypeAAAA = 28,
/** SRV */
OFDNSRecordTypeSRV = 33,
/** All types. Only for queries. */
OFDNSRecordTypeAll = 255,
} OFDNSRecordType;
/**
* @class OFDNSResourceRecord OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class representing a DNS resource record.
*/
@interface OFDNSResourceRecord: OFObject <OFCopying>
{
OFString *_name;
OFDNSClass _DNSClass;
OFDNSRecordType _recordType;
uint32_t _TTL;
OF_RESERVE_IVARS(OFDNSResourceRecord, 4)
}
/**
* @brief The domain name to which the resource record belongs.
*/
@property (readonly, nonatomic) OFString *name;
/**
* @brief The DNS class.
*/
@property (readonly, nonatomic) OFDNSClass DNSClass;
/**
* @brief The resource record type code.
*/
@property (readonly, nonatomic) OFDNSRecordType recordType;
/**
* @brief The number of seconds after which the resource record should be
* discarded from the cache.
*/
@property (readonly, nonatomic) uint32_t TTL;
/**
* @brief Initializes an already allocated OFDNSResourceRecord with the
* specified name, class, type, data and time to live.
*
* @param name The name for the resource record
* @param DNSClass The class code for the resource record
* @param recordType The type code for the resource record
* @param TTL The time to live for the resource record
* @return An initialized OFDNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
/**
* @class OFADNSResourceRecord OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class representing an A DNS resource record.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFADNSResourceRecord: OFDNSResourceRecord
{
OFSocketAddress _address;
}
/**
* @brief The IPv4 address of the resource record.
*/
@property (readonly, nonatomic) const OFSocketAddress *address;
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFADNSResourceRecord with the
* specified name, class, address and time to live.
*
* @param name The name for the resource record
* @param address The address for the resource record
* @param TTL The time to live for the resource record
* @return An initialized OFADNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
address: (const OFSocketAddress *)address
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
/**
* @class OFAAAADNSResourceRecord \
* OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class represenging a DNS resource record.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFAAAADNSResourceRecord: OFDNSResourceRecord
{
OFSocketAddress _address;
}
/**
* @brief The IPv6 address of the resource record.
*/
@property (readonly, nonatomic) const OFSocketAddress *address;
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFAAAADNSResourceRecord with the
* specified name, class, address and time to live.
*
* @param name The name for the resource record
* @param address The address for the resource record
* @param TTL The time to live for the resource record
* @return An initialized OFAAAADNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
address: (const OFSocketAddress *)address
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
/**
* @class OFCNAMEDNSResourceRecord \
* OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class representing a CNAME DNS resource record.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFCNAMEDNSResourceRecord: OFDNSResourceRecord
{
OFString *_alias;
}
/**
* @brief The alias of the resource record.
*/
@property (readonly, nonatomic) OFString *alias;
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFCNAMEDNSResourceRecord with the
* specified name, class, alias and time to live.
*
* @param name The name for the resource record
* @param DNSClass The class code for the resource record
* @param alias The alias for the resource record
* @param TTL The time to live for the resource record
* @return An initialized OFCNAMEDNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
alias: (OFString *)alias
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
/**
* @class OFHINFODNSResourceRecord \
* OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class representing an HINFO DNS resource record.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFHINFODNSResourceRecord: OFDNSResourceRecord
{
OFString *_CPU, *_OS;
}
/**
* @brief The CPU of the host info of the resource record.
*/
@property (readonly, nonatomic) OFString *CPU;
/**
* @brief The OS of the host info of the resource record.
*/
@property (readonly, nonatomic) OFString *OS;
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFHINFODNSResourceRecord with the
* specified name, class, domain name and time to live.
*
* @param name The name for the resource record
* @param DNSClass The class code for the resource record
* @param CPU The CPU of the host info for the resource record
* @param OS The OS of the host info for the resource record
* @param TTL The time to live for the resource record
* @return An initialized OFHINFODNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
CPU: (OFString *)CPU
OS: (OFString *)OS
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
/**
* @class OFMXDNSResourceRecord \
* OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class representing an MX DNS resource record.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFMXDNSResourceRecord: OFDNSResourceRecord
{
uint16_t _preference;
OFString *_mailExchange;
}
/**
* @brief The preference of the resource record.
*/
@property (readonly, nonatomic) uint16_t preference;
/**
* @brief The mail exchange of the resource record.
*/
@property (readonly, nonatomic) OFString *mailExchange;
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFMXDNSResourceRecord with the
* specified name, class, preference, mail exchange and time to live.
*
* @param name The name for the resource record
* @param DNSClass The class code for the resource record
* @param preference The preference for the resource record
* @param mailExchange The mail exchange for the resource record
* @param TTL The time to live for the resource record
* @return An initialized OFMXDNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
preference: (uint16_t)preference
mailExchange: (OFString *)mailExchange
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
/**
* @class OFNSDNSResourceRecord \
* OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class representing an NS DNS resource record.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFNSDNSResourceRecord: OFDNSResourceRecord
{
OFString *_authoritativeHost;
}
/**
* @brief The authoritative host of the resource record.
*/
@property (readonly, nonatomic) OFString *authoritativeHost;
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFNSDNSResourceRecord with the
* specified name, class, authoritative host and time to live.
*
* @param name The name for the resource record
* @param DNSClass The class code for the resource record
* @param authoritativeHost The authoritative host for the resource record
* @param TTL The time to live for the resource record
* @return An initialized OFNSDNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
authoritativeHost: (OFString *)authoritativeHost
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
/**
* @class OFPTRDNSResourceRecord \
* OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class representing a PTR DNS resource record.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFPTRDNSResourceRecord: OFDNSResourceRecord
{
OFString *_domainName;
}
/**
* @brief The domain name of the resource record.
*/
@property (readonly, nonatomic) OFString *domainName;
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFPTRDNSResourceRecord with the
* specified name, class, domain name and time to live.
*
* @param name The name for the resource record
* @param DNSClass The class code for the resource record
* @param domainName The domain name for the resource record
* @param TTL The time to live for the resource record
* @return An initialized OFPTRDNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
domainName: (OFString *)domainName
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
/**
* @class OFRPNSResourceRecord \
* OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class representing an RP DNS resource record.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFRPDNSResourceRecord: OFDNSResourceRecord
{
OFString *_mailbox, *_TXTDomainName;
}
/**
* @brief The mailbox of the responsible person of the resource record.
*/
@property (readonly, nonatomic) OFString *mailbox;
/**
* @brief A domain name that contains a TXT resource record for the responsible
* person of the resource record.
*/
@property (readonly, nonatomic) OFString *TXTDomainName;
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFRPDNSResourceRecord with the
* specified name, class, alias and time to live.
*
* @param name The name for the resource record
* @param DNSClass The class code for the resource record
* @param mailbox The mailbox of the responsible person of the resource record
* @param TXTDomainName A domain name that contains a TXT resource record for
* the responsible person of the resource record
* @param TTL The time to live for the resource record
* @return An initialized OFRPDNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
mailbox: (OFString *)mailbox
TXTDomainName: (OFString *)TXTDomainName
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
/**
* @class OFSOADNSResourceRecord \
* OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class representing an SOA DNS resource record.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFSOADNSResourceRecord: OFDNSResourceRecord
{
OFString *_primaryNameServer, *_responsiblePerson;
uint32_t _serialNumber, _refreshInterval, _retryInterval;
uint32_t _expirationInterval, _minTTL;
}
/**
* @brief The the primary name server for the zone.
*/
@property (readonly, nonatomic) OFString *primaryNameServer;
/**
* @brief The mailbox of the person responsible for the zone.
*/
@property (readonly, nonatomic) OFString *responsiblePerson;
/**
* @brief The serial number of the original copy of the zone.
*/
@property (readonly, nonatomic) uint32_t serialNumber;
/**
* @brief The refresh interval of the zone.
*/
@property (readonly, nonatomic) uint32_t refreshInterval;
/**
* @brief The retry interval of the zone.
*/
@property (readonly, nonatomic) uint32_t retryInterval;
/**
* @brief The expiration interval of the zone.
*/
@property (readonly, nonatomic) uint32_t expirationInterval;
/**
* @brief The minimum TTL of the zone.
*/
@property (readonly, nonatomic) uint32_t minTTL;
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFSOADNSResourceRecord with the
* specified name, class, text data and time to live.
*
* @param name The name for the resource record
* @param DNSClass The class code for the resource record
* @param primaryNameServer The the primary name server for the zone
* @param responsiblePerson The mailbox of the person responsible for the zone
* @param serialNumber The serial number of the original copy of the zone
* @param refreshInterval The refresh interval of the zone
* @param retryInterval The retry interval of the zone
* @param expirationInterval The expiration interval of the zone
* @param minTTL The minimum TTL of the zone
* @param TTL The time to live for the resource record
* @return An initialized OFSOADNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
primaryNameServer: (OFString *)primaryNameServer
responsiblePerson: (OFString *)responsiblePerson
serialNumber: (uint32_t)serialNumber
refreshInterval: (uint32_t)refreshInterval
retryInterval: (uint32_t)retryInterval
expirationInterval: (uint32_t)expirationInterval
minTTL: (uint32_t)minTTL
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
/**
* @class OFSRVDNSResourceRecord \
* OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class representing an SRV DNS resource record.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFSRVDNSResourceRecord: OFDNSResourceRecord
{
uint16_t _priority, _weight;
OFString *_target;
uint16_t _port;
}
/**
* @brief The priority of the resource record.
*/
@property (readonly, nonatomic) uint16_t priority;
/**
* @brief The weight of the resource record.
*/
@property (readonly, nonatomic) uint16_t weight;
/**
* @brief The target of the resource record.
*/
@property (readonly, nonatomic) OFString *target;
/**
* @brief The port on the target of the resource record.
*/
@property (readonly, nonatomic) uint16_t port;
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFSRVDNSResourceRecord with the
* specified name, class, preference, mail exchange and time to live.
*
* @param name The name for the resource record
* @param priority The priority for the resource record
* @param weight The weight for the resource record
* @param target The target for the resource record
* @param port The port on the target for the resource record
* @param TTL The time to live for the resource record
* @return An initialized OFSRVDNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
priority: (uint16_t)priority
weight: (uint16_t)weight
target: (OFString *)target
port: (uint16_t)port
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
/**
* @class OFTXTDNSResourceRecord \
* OFDNSResourceRecord.h ObjFW/OFDNSResourceRecord.h
*
* @brief A class representing a TXT DNS resource record.
*/
OF_SUBCLASSING_RESTRICTED
@interface OFTXTDNSResourceRecord: OFDNSResourceRecord
{
OFArray OF_GENERIC(OFData *) *_textStrings;
}
/**
* @brief The text of the resource record.
*/
@property (readonly, nonatomic) OFArray OF_GENERIC(OFData *) *textStrings;
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
recordType: (OFDNSRecordType)recordType
TTL: (uint32_t)TTL OF_UNAVAILABLE;
/**
* @brief Initializes an already allocated OFTXTDNSResourceRecord with the
* specified name, class, text data and time to live.
*
* @param name The name for the resource record
* @param DNSClass The class code for the resource record
* @param textStrings An array of text strings for the resource record
* @param TTL The time to live for the resource record
* @return An initialized OFTXTDNSResourceRecord
*/
- (instancetype)initWithName: (OFString *)name
DNSClass: (OFDNSClass)DNSClass
textStrings: (OFArray OF_GENERIC(OFData *) *)textStrings
TTL: (uint32_t)TTL OF_DESIGNATED_INITIALIZER;
@end
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Returns the name for the specified OFDNSClass.
*
* @param DNSClass The OFDNSClass to return the name for
* @return The name for the specified OFDNSClass
*/
extern OFString *_Nonnull OFDNSClassName(OFDNSClass DNSClass);
/**
* @brief Returns the name for the specified OFDNSRecordType.
*
* @param recordType The OFDNSRecordType to return the name for
* @return The name for the specified OFDNSRecordType
*/
extern OFString *_Nonnull OFDNSRecordTypeName(OFDNSRecordType recordType);
/**
* @brief Parses the specified string as an @ref OFDNSClass.
*
* @param string The string to parse as an @ref OFDNSClass
* @return The parsed OFDNSClass
* @throw OFInvalidFormatException The specified string is not valid DNS class
*/
extern OFDNSClass OFDNSClassParseName(OFString *_Nonnull string);
/**
* @brief Parses the specified string as an @ref OFDNSRecordType.
*
* @param string The string to parse as an @ref OFDNSRecordType
* @return The parsed OFDNSRecordType
* @throw OFInvalidFormatException The specified string is not valid DNS class
*/
extern OFDNSRecordType OFDNSRecordTypeParseName(OFString *_Nonnull string);
#ifdef __cplusplus
}
#endif
OF_ASSUME_NONNULL_END