IPv6PacketImpl (Core Pkts 3.0.10 API)

java.lang.Object
- io.pkts.packet.impl.AbstractPacket
- - io.pkts.packet.impl.IPv6PacketImpl

All Implemented Interfaces:

IPPacket, IPv6Packet, Packet, Cloneable
```
public final class IPv6PacketImpl
extends AbstractPacket
implements IPv6Packet
```
Author:

epall@google.com

Field Summary

Fields
Modifier and Type Field and Description

static int FIXED_HEADER_LENGTH
- Fields inherited from interface io.pkts.packet.IPv6Packet
  EXTENSION_AH, EXTENSION_DESTINATION_OPTIONS, EXTENSION_ESP, EXTENSION_FRAGMENT, EXTENSION_HOP_BY_HOP, EXTENSION_MOBILITY, EXTENSION_ROUTING, VERSION_IDENTIFIER

Fields
Modifier and Type	Field and Description
`static int`	`FIXED_HEADER_LENGTH`

Constructor Summary

Constructors
Constructor and Description

IPv6PacketImpl(Packet parent, Buffer headers, int nextProtocol, Buffer payload)

Constructors
Constructor and Description
`IPv6PacketImpl(Packet parent, Buffer headers, int nextProtocol, Buffer payload)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`IPv6Packet`	`clone()`
`long`	`getArrivalTime()` The arrival time of this packet in microseconds relative to epoch (midnight UTC of January 1, 1970).
`String`	`getDestinationIP()` Convenience method for returning the destination IP in a more human readable form.
`int`	`getFlowLabel()`
`short`	`getFragmentOffset()` The fragment offset field, measured in units of eight-byte blocks, is 13 bits long and specifies the offset of a particular fragment relative to the beginning of the original unfragmented IP datagram.
`int`	`getHeaderLength()` The length of the IPv6 headers
`int`	`getHopLimit()`
`int`	`getIdentification()` Note, this should be treated as a unsigned short.
`Packet`	`getNextPacket()` Get the next frame, or null if there is none.
`byte[]`	`getRawDestinationIP()` Get the raw destination ip.
`byte[]`	`getRawSourceIP()` Get the raw source ip.
`String`	`getSourceIP()` Convenience method for returning the source IP in a more human readable form.
`int`	`getTotalIPLength()` This 16-bit field defines the entire packet (fragment) size, including header and data, in bytes.
`short`	`getTrafficClass()`
`int`	`getVersion()` The IP version (4 or 6)
`boolean`	`isFragmented()`
`void`	`setDestinationIP(String destinationIP)` Set the destination IP of this `IPPacket`.
`void`	`setRawDestinationIP(byte[] ip)`
`void`	`setRawSourceIP(byte[] ip)`
`void`	`setSourceIP(String sourceIp)` Set the source IP of this `IPPacket`.
`String`	`toString()`
`void`	`verify()` Calling this method will force the packet to completely parse its data and check so that all the information conforms to whatever rules this packet needs to follow.
`void`	`write(OutputStream out, Buffer payload)` Writes this packet to the `OutputStream` with the supplied payload.

Methods inherited from class io.pkts.packet.impl.AbstractPacket
checkParent, getName, getPacket, getParentPacket, getPayload, getProtocol, hasProtocol, write

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.pkts.packet.Packet
getName, getPacket, getParentPacket, getPayload, getProtocol, hasProtocol, write

- Field Detail
  - FIXED_HEADER_LENGTH
```
public static final int FIXED_HEADER_LENGTH
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - IPv6PacketImpl
```
public IPv6PacketImpl(Packet parent,
                      Buffer headers,
                      int nextProtocol,
                      Buffer payload)
```
- Method Detail
  - getRawSourceIP
```
public byte[] getRawSourceIP()
```
    Get the raw source ip. Note, these are the raw bits and should be treated as such. If you really want to print it, then you should treat it as unsigned
    
    Specified by:
    
    getRawSourceIP in interface IPPacket
    
    Returns:
  - setSourceIP
```
public void setSourceIP(String sourceIp)
```
    Description copied from interface: IPPacket
    
    Set the source IP of this IPPacket.
    
    Specified by:
    
    setSourceIP in interface IPPacket
  - getSourceIP
```
public String getSourceIP()
```
    Convenience method for returning the source IP in a more human readable form.
    
    Specified by:
    
    getSourceIP in interface IPPacket
    
    Returns:
  - getRawDestinationIP
```
public byte[] getRawDestinationIP()
```
    Get the raw destination ip. Note, these are the raw bits and should be treated as such. If you really want to print it, then you should treat it as unsigned
    
    Specified by:
    
    getRawDestinationIP in interface IPPacket
    
    Returns:
  - setDestinationIP
```
public void setDestinationIP(String destinationIP)
```
    Description copied from interface: IPPacket
    
    Set the destination IP of this IPPacket.
    
    Specified by:
    
    setDestinationIP in interface IPPacket
  - getDestinationIP
```
public String getDestinationIP()
```
    Convenience method for returning the destination IP in a more human readable form.
    
    Specified by:
    
    getDestinationIP in interface IPPacket
    
    Returns:
  - verify
```
public void verify()
```
    Calling this method will force the packet to completely parse its data and check so that all the information conforms to whatever rules this packet needs to follow. E.g., if this happens to be a SIP packet, then it will check if it has the mandatory headers etc. Some simpler packets, such as the IPPacket, hardly does anything in this method but more complex protocols such as SIP (once again), HTTP etc can spend quite some time verifying everything, which is why you don't want to do it unless you really have to. In general, yajpcap has the philosophy of "assume that everything is ok until things blow up and then deal with it"
    
    Specified by:
    
    verify in interface Packet
    
    Overrides:
    
    verify in class AbstractPacket
  - getTrafficClass
```
public short getTrafficClass()
```
    Specified by:
    
    getTrafficClass in interface IPv6Packet
  - getFlowLabel
```
public int getFlowLabel()
```
    Specified by:
    
    getFlowLabel in interface IPv6Packet
  - getHopLimit
```
public int getHopLimit()
```
    Specified by:
    
    getHopLimit in interface IPv6Packet
  - getArrivalTime
```
public long getArrivalTime()
```
    Description copied from interface: Packet
    The arrival time of this packet in microseconds relative to epoch (midnight UTC of January 1, 1970). Note, since this returns with microseconds precision (which may or may not be relevant depending on the hardware on which the packet was captured on) and you wish to format this arrival time into a more human readable format you could use the SimpleDateFormat but it can only handle milliseconds precision (you will have to write your own date formatter if you want microseconds). Here is a snippet illustrating how to turn the arrival time of the packet into a human readable date
```
 Packet p = ...;
 SimpleDateFormat formatter = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss.SSS");
 Date date = new Date(p.getArrivalTime() / 1000);
 System.out.println("Arrival time: " + formatter.format(date));
 
```
    Note how an integer devision is performed on the arrival time to "cut off" the microseconds from the time stamp
    Specified by:
    
    getArrivalTime in interface Packet
    
    Returns:
    
    the arrival time of the packet in microseconds since the start of the epoch
  - write
```
public void write(OutputStream out,
                  Buffer payload)
           throws IOException
```
    Description copied from interface: Packet
    
    Writes this packet to the OutputStream with the supplied payload. You can use this method to e.g. write a raw UDPPacket to the stream with this payload. Note, if the UDPPacket already had a payload it will be ignored so use this method with care.
    
    Specified by:
    
    write in interface Packet
    
    Throws:
    
    IOException
  - getTotalIPLength
```
public int getTotalIPLength()
```
    Description copied from interface: IPPacket
    
    This 16-bit field defines the entire packet (fragment) size, including header and data, in bytes. The minimum-length packet is 20 bytes (20-byte header + 0 bytes data) and the maximum is 65,535 bytes — the maximum value of a 16-bit word. The largest datagram that any host is required to be able to reassemble is 576 bytes, but most modern hosts handle much larger packets. Sometimes subnetworks impose further restrictions on the packet size, in which case datagrams must be fragmented. Fragmentation is handled in either the host or router in IPv4. (source: http://en.wikipedia.org/wiki/IPv4)
    
    Specified by:
    
    getTotalIPLength in interface IPPacket
    
    Returns:
  - setRawSourceIP
```
public void setRawSourceIP(byte[] ip)
```
  - setRawDestinationIP
```
public void setRawDestinationIP(byte[] ip)
```
  - clone
```
public IPv6Packet clone()
```
    Specified by:
    
    clone in interface IPPacket
    
    Specified by:
    
    clone in interface Packet
    
    Specified by:
    
    clone in class AbstractPacket
  - getNextPacket
```
public Packet getNextPacket()
                     throws IOException
```
    Description copied from interface: Packet
    
    Get the next frame, or null if there is none. Note, if there isn't another frame but there is still raw data within this frame, it only means that we didn't recognize the payload.
    
    Specified by:
    
    getNextPacket in interface Packet
    
    Returns:
    
    Throws:
    
    IOException
  - getVersion
```
public int getVersion()
```
    Description copied from interface: IPPacket
    
    The IP version (4 or 6)
    
    Specified by:
    
    getVersion in interface IPPacket
    
    Returns:
  - getHeaderLength
```
public int getHeaderLength()
```
    The length of the IPv6 headers
    
    Specified by:
    
    getHeaderLength in interface IPPacket
    
    Returns:
  - getIdentification
```
public int getIdentification()
```
    Description copied from interface: IPPacket
    
    Note, this should be treated as a unsigned short. This field is an identification field and is primarily used for uniquely identifying fragments of an original IP datagram. Some experimental work has suggested using the ID field for other purposes, such as for adding packet-tracing information to help trace datagrams with spoofed source addresses (source http://en.wikipedia.org/wiki/IPv4)
    
    Specified by:
    
    getIdentification in interface IPPacket
    
    Returns:
  - isFragmented
```
public boolean isFragmented()
```
    Specified by:
    
    isFragmented in interface IPPacket
    
    Returns:
  - getFragmentOffset
```
public short getFragmentOffset()
```
    Description copied from interface: IPPacket
    
    The fragment offset field, measured in units of eight-byte blocks, is 13 bits long and specifies the offset of a particular fragment relative to the beginning of the original unfragmented IP datagram. The first fragment has an offset of zero. This allows a maximum offset of (213 – 1) × 8 = 65,528 bytes, which would exceed the maximum IP packet length of 65,535 bytes with the header length included (65,528 + 20 = 65,548 bytes). (source http://en.wikipedia.org/wiki/IPv4)
    
    Specified by:
    
    getFragmentOffset in interface IPPacket
    
    Returns:
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class IPv6PacketImpl

Field Summary

Fields inherited from interface io.pkts.packet.IPv6Packet

Constructor Summary

Method Summary

Methods inherited from class io.pkts.packet.impl.AbstractPacket

Methods inherited from class java.lang.Object

Methods inherited from interface io.pkts.packet.Packet

Field Detail

FIXED_HEADER_LENGTH

Constructor Detail

IPv6PacketImpl

Method Detail

getRawSourceIP

setSourceIP

getSourceIP

getRawDestinationIP

setDestinationIP

getDestinationIP

verify

getTrafficClass

getFlowLabel

getHopLimit

getArrivalTime

write

getTotalIPLength

setRawSourceIP

setRawDestinationIP

clone

getNextPacket

getVersion

getHeaderLength

getIdentification

isFragmented

getFragmentOffset

toString