Module org.pcap4j.core

Package org.pcap4j.packet

Class DnsRDataCaa

java.lang.Object

org.pcap4j.packet.DnsRDataCaa

All Implemented Interfaces:

java.io.Serializable, DnsResourceRecord.DnsRData

public final class DnsRDataCaa
extends java.lang.Object
implements DnsResourceRecord.DnsRData

DNS CAA RDATA

 +0-1-2-3-4-5-6-7-|0-1-2-3-4-5-6-7-|
 | Flags          | Tag Length = n |
 +----------------+----------------+...+---------------+
 | Tag char 0     | Tag char 1     |...| Tag char n-1  |
 +----------------+----------------+...+---------------+
 +----------------+----------------+.....+----------------+
 | Value byte 0   | Value byte 1   |.....| Value byte m-1 |
 +----------------+----------------+.....+----------------+
 (m = d - n - 2) where d is the length of the RDATA section.)

 where:
 Flags: One octet containing bit flags for record. See rfc for details.

    Bit 0, Issuer Critical Flag
    All other bit positions are reserved for future use.

 Tag: The property identifier, a sequence of US-ASCII characters.
 Value: A sequence of octets representing the property value.
 

Since:

pcap4j 1.7.2

See Also:

RFC 6844, Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DnsRDataCaa.Builder

Field Summary

Fields

Modifier and Type	Field	Description
private static int	CAA_RR_MIN_LEN
private boolean	critical
private byte	reservedFlags
private static long	serialVersionUID	A serial UID for serialization.
private java.lang.String	tag
private java.lang.String	value

Constructor Summary

Constructors

Modifier	Constructor	Description
private	DnsRDataCaa(byte[] rawData, int offset, int length)
private	DnsRDataCaa(DnsRDataCaa.Builder builder)

Method Summary

Modifier and Type	Method	Description
boolean	equals(java.lang.Object o)
DnsRDataCaa.Builder	getBuilder()
byte[]	getRawData()
byte	getReservedFlags()
java.lang.String	getTag()
java.lang.String	getValue()
int	hashCode()
boolean	isCritical()
int	length()
static DnsRDataCaa	newInstance(byte[] rawData, int offset, int length)	A static factory method.
java.lang.String	toString()
java.lang.String	toString(java.lang.String indent)
java.lang.String	toString(java.lang.String indent, byte[] headerRawData)

Methods inherited from class java.lang.Object

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

Field Detail

CAA_RR_MIN_LEN

private static final int CAA_RR_MIN_LEN

See Also:

Constant Field Values

serialVersionUID

private static final long serialVersionUID

A serial UID for serialization.

See Also:

Constant Field Values

critical

private final boolean critical

reservedFlags

private final byte reservedFlags

tag

private final java.lang.String tag

value

private final java.lang.String value

Constructor Detail

DnsRDataCaa

private DnsRDataCaa(byte[] rawData,
                    int offset,
                    int length)
             throws IllegalRawDataException

Throws:

IllegalRawDataException

DnsRDataCaa

private DnsRDataCaa(DnsRDataCaa.Builder builder)

Method Detail

newInstance

public static DnsRDataCaa newInstance(byte[] rawData,
                                      int offset,
                                      int length)
                               throws IllegalRawDataException

A static factory method. This method validates the arguments by ByteArrays.validateBounds(byte[], int, int), which may throw exceptions undocumented here.

Parameters:

rawData - rawData

offset - offset

length - length

Returns:

a new DnsRDataCaa object.

Throws:

IllegalRawDataException - if parsing the raw data fails.

isCritical

public boolean isCritical()

Returns:

true if the Issuer Critical Flag is set to 1; false otherwise.

getReservedFlags

public byte getReservedFlags()

Returns:

reservedFlags (Bit 1 to 7 of the Flags field)

getTag

public java.lang.String getTag()

Returns:

tag

getValue

public java.lang.String getValue()

Returns:

value

length

public int length()

Specified by:

length in interface DnsResourceRecord.DnsRData

Returns:

length

getRawData

public byte[] getRawData()

Specified by:

getRawData in interface DnsResourceRecord.DnsRData

Returns:

raw data

getBuilder

public DnsRDataCaa.Builder getBuilder()

Returns:

a new Builder object populated with this object's fields.

toString

public java.lang.String toString(java.lang.String indent)

Specified by:

toString in interface DnsResourceRecord.DnsRData

Parameters:

indent - indent

Returns:

String representation of this object.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toString

public java.lang.String toString(java.lang.String indent,
                                 byte[] headerRawData)

Specified by:

toString in interface DnsResourceRecord.DnsRData

Parameters:

indent - indent

headerRawData - the raw data of the DNS header including this RDATA.

Returns:

String representation of this object.

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object