Class DnsRDataCaa

java.lang.Object

org.pcap4j.packet.DnsRDataCaa

All Implemented Interfaces:

Serializable, DnsResourceRecord.DnsRData

public final class DnsRDataCaa
extends 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 final class	DnsRDataCaa.Builder

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	CAA_RR_MIN_LEN
private final boolean	critical
private final byte	reservedFlags
private static final long	serialVersionUID	A serial UID for serialization.
private final String	tag
private final 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(Object o)
DnsRDataCaa.Builder	getBuilder()
byte[]	getRawData()
byte	getReservedFlags()
String	getTag()
String	getValue()
int	hashCode()
boolean	isCritical()
int	length()
static DnsRDataCaa	newInstance(byte[] rawData, int offset, int length)	A static factory method.
String	toString()
String	toString(String indent)
String	toString(String indent, byte[] headerRawData)

Methods inherited from class Object

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

Field Details

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 String tag

value

private final String value

Constructor Details

DnsRDataCaa

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

Throws:

IllegalRawDataException

DnsRDataCaa

private DnsRDataCaa(DnsRDataCaa.Builder builder)

Method Details

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 String getTag()

Returns:

tag

getValue

public 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 String toString(String indent)

Specified by:

toString in interface DnsResourceRecord.DnsRData

Parameters:

indent - indent

Returns:

String representation of this object.

toString

public String toString()

Overrides:

toString in class Object

toString

public String toString(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(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object