org.xbill.DNS

Class DSRecord

java.lang.Object

org.xbill.DNS.Record

org.xbill.DNS.DSRecord

All Implemented Interfaces:

Cloneable, Comparable<Record>

Direct Known Subclasses:

CDSRecord

public class DSRecord
extends Record

DS - contains a Delegation Signer record, which acts as a placeholder for KEY records in the parent zone.

Author:

David Blacka, Brian Wellington

See Also:

DNSSEC, RFC 4034: Resource Records for the DNS Security Extensions

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DSRecord.Digest

Field Summary

Fields

Modifier and Type	Field and Description
static int	GOST3411_DIGEST_ID
static int	SHA1_DIGEST_ID
static int	SHA256_DIGEST_ID
static int	SHA384_DIGEST_ID

Fields inherited from class org.xbill.DNS.Record

dclass, name, ttl, type

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DSRecord(Name name, int type, int dclass, long ttl, int footprint, int alg, int digestid, byte[] digest) Creates a DS Record from the given data
	DSRecord(Name name, int dclass, long ttl, int digestid, DNSKEYRecord key) Creates a DS Record from the given data
	DSRecord(Name name, int dclass, long ttl, int footprint, int alg, int digestid, byte[] digest) Creates a DS Record from the given data

Method Summary

Modifier and Type	Method and Description
int	getAlgorithm() Returns the key's algorithm.
byte[]	getDigest() Returns the binary hash of the key.
int	getDigestID() Returns the key's Digest ID.
int	getFootprint() Returns the key's footprint.
protected void	rdataFromString(Tokenizer st, Name origin) Converts the text format of an RR to the internal format - must be overriden
protected void	rrFromWire(DNSInput in) Converts the type-specific RR to wire format - must be overridden
protected String	rrToString() Converts rdata to a String
protected void	rrToWire(DNSOutput out, Compression c, boolean canonical) Converts the type-specific RR to wire format - must be overriden

Methods inherited from class org.xbill.DNS.Record

byteArrayFromString, byteArrayToString, compareTo, equals, fromString, fromString, fromWire, getAdditionalName, getDClass, getName, getRRsetType, getTTL, getType, hashCode, newRecord, newRecord, newRecord, newRecord, rdataToString, rdataToWireCanonical, sameRRset, toString, toWire, toWireCanonical, unknownToString, withName

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

SHA1_DIGEST_ID

public static final int SHA1_DIGEST_ID

See Also:

Constant Field Values

SHA256_DIGEST_ID

public static final int SHA256_DIGEST_ID

See Also:

Constant Field Values

GOST3411_DIGEST_ID

public static final int GOST3411_DIGEST_ID

See Also:

Constant Field Values

SHA384_DIGEST_ID

public static final int SHA384_DIGEST_ID

See Also:

Constant Field Values

Constructor Detail

DSRecord

protected DSRecord(Name name,
                   int type,
                   int dclass,
                   long ttl,
                   int footprint,
                   int alg,
                   int digestid,
                   byte[] digest)

Creates a DS Record from the given data

Parameters:

footprint - The original KEY record's footprint (keyid).

alg - The original key algorithm.

digestid - The digest id code.

digest - A hash of the original key.

DSRecord

public DSRecord(Name name,
                int dclass,
                long ttl,
                int footprint,
                int alg,
                int digestid,
                byte[] digest)

Creates a DS Record from the given data

Parameters:

footprint - The original KEY record's footprint (keyid).

alg - The original key algorithm.

digestid - The digest id code.

digest - A hash of the original key.

DSRecord

public DSRecord(Name name,
                int dclass,
                long ttl,
                int digestid,
                DNSKEYRecord key)

Creates a DS Record from the given data

Parameters:

digestid - The digest id code.

key - The key to digest

Method Detail

rrFromWire

protected void rrFromWire(DNSInput in)
                   throws IOException

Description copied from class: Record

Converts the type-specific RR to wire format - must be overridden

Specified by:

rrFromWire in class Record

Throws:

IOException

rdataFromString

protected void rdataFromString(Tokenizer st,
                               Name origin)
                        throws IOException

Description copied from class: Record

Converts the text format of an RR to the internal format - must be overriden

Specified by:

rdataFromString in class Record

Throws:

IOException

rrToString

protected String rrToString()

Converts rdata to a String

Specified by:

rrToString in class Record

getAlgorithm

public int getAlgorithm()

Returns the key's algorithm.

getDigestID

public int getDigestID()

Returns the key's Digest ID.

getDigest

public byte[] getDigest()

Returns the binary hash of the key.

getFootprint

public int getFootprint()

Returns the key's footprint.

rrToWire

protected void rrToWire(DNSOutput out,
                        Compression c,
                        boolean canonical)

Description copied from class: Record

Converts the type-specific RR to wire format - must be overriden

Specified by:

rrToWire in class Record