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

Author:

Paulo Pacheco

See Also:

RFC 6844, Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DnsRDataCaa.Builder

Method Summary

Modifier and Type	Method and 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

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