java.lang.Object
- org.onlab.packet.BasePacket
- - org.onlab.packet.DHCP

All Implemented Interfaces:

IPacket
```
public class DHCP
extends BasePacket
```
Representation of an DHCP Packet.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class DHCP.DHCPOptionCode

static class DHCP.MsgType

Field Summary

Fields
Modifier and Type	Field	Description
`protected String`	`bootFileName`
`protected byte[]`	`clientHardwareAddress`
`protected int`	`clientIPAddress`
`protected short`	`flags`
`protected int`	`gatewayIPAddress`
`protected byte`	`hardwareAddressLength`
`protected byte`	`hardwareType`
`protected byte`	`hops`
`static byte`	`HWTYPE_ETHERNET`
`static int`	`MIN_HEADER_LENGTH`	Dynamic Host Configuration Protocol packet.
`protected byte`	`opCode`
`static byte`	`OPCODE_REPLY`
`static byte`	`OPCODE_REQUEST`
`protected List<DhcpOption>`	`options`
`protected short`	`seconds`
`protected int`	`serverIPAddress`
`protected String`	`serverName`
`protected int`	`transactionId`
`protected int`	`yourIPAddress`

Fields inherited from class org.onlab.packet.BasePacket
parent, payload

Constructor Summary

Constructors
Constructor Description

DHCP()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static Deserializer<DHCP>`	`deserializer()`	Deserializer function for DHCP packets.
`String`	`getBootFileName()`
`byte[]`	`getClientHardwareAddress()`
`int`	`getClientIPAddress()`
`short`	`getFlags()`
`int`	`getGatewayIPAddress()`
`byte`	`getHardwareAddressLength()`
`byte`	`getHardwareType()`
`byte`	`getHops()`
`byte`	`getOpCode()`
`DhcpOption`	`getOption(DHCP.DHCPOptionCode optionCode)`	Gets a specific DHCP option parameter.
`List<DhcpOption>`	`getOptions()`
`DHCP.MsgType`	`getPacketType()`
`short`	`getSeconds()`
`int`	`getServerIPAddress()`
`String`	`getServerName()`
`int`	`getTransactionId()`
`int`	`getYourIPAddress()`
`byte[]`	`serialize()`	Sets all payloads parent packet if applicable, then serializes this packet and all payloads.
`DHCP`	`setBootFileName(String bootFile)`
`DHCP`	`setClientHardwareAddress(byte[] clientHardwareAddress)`
`DHCP`	`setClientIPAddress(int clientIPAddress)`
`DHCP`	`setFlags(short flags)`
`DHCP`	`setGatewayIPAddress(int gatewayIPAddress)`
`DHCP`	`setHardwareAddressLength(byte hardwareAddressLength)`
`DHCP`	`setHardwareType(byte hardwareType)`
`DHCP`	`setHops(byte hops)`
`DHCP`	`setOpCode(byte opCode)`
`DHCP`	`setOptions(List<DhcpOption> options)`
`DHCP`	`setSeconds(short seconds)`
`DHCP`	`setServerIPAddress(int serverIPAddress)`
`DHCP`	`setServerName(String server)`
`DHCP`	`setTransactionId(int transactionId)`
`DHCP`	`setYourIPAddress(int yourIPAddress)`
`String`	`toString()`
`protected void`	`writeString(String string, ByteBuffer bb, int maxLength)`

Methods inherited from class org.onlab.packet.BasePacket
clone, equals, getParent, getPayload, hashCode, resetChecksum, setParent, setPayload

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

- Field Detail
  - MIN_HEADER_LENGTH
```
public static final int MIN_HEADER_LENGTH
```
    Dynamic Host Configuration Protocol packet. ------------------------------------------ |op (1) | htype(1) | hlen(1) | hops(1) | ------------------------------------------ | xid (4) | ------------------------------------------ | secs (2) | flags (2) | ------------------------------------------ | ciaddr (4) | ------------------------------------------ | yiaddr (4) | ------------------------------------------ | siaddr (4) | ------------------------------------------ | giaddr (4) | ------------------------------------------ | chaddr (16) | ------------------------------------------ | sname (64) | ------------------------------------------ | file (128) | ------------------------------------------ | options (312) | ------------------------------------------
    
    See Also:
    
    Constant Field Values
  - OPCODE_REQUEST
```
public static final byte OPCODE_REQUEST
```
    See Also:
    
    Constant Field Values
  - OPCODE_REPLY
```
public static final byte OPCODE_REPLY
```
    See Also:
    
    Constant Field Values
  - HWTYPE_ETHERNET
```
public static final byte HWTYPE_ETHERNET
```
    See Also:
    
    Constant Field Values
  - opCode
```
protected byte opCode
```
  - hardwareType
```
protected byte hardwareType
```
  - hardwareAddressLength
```
protected byte hardwareAddressLength
```
  - hops
```
protected byte hops
```
  - transactionId
```
protected int transactionId
```
  - seconds
```
protected short seconds
```
  - flags
```
protected short flags
```
  - clientIPAddress
```
protected int clientIPAddress
```
  - yourIPAddress
```
protected int yourIPAddress
```
  - serverIPAddress
```
protected int serverIPAddress
```
  - gatewayIPAddress
```
protected int gatewayIPAddress
```
  - clientHardwareAddress
```
protected byte[] clientHardwareAddress
```
  - serverName
```
protected String serverName
```
  - bootFileName
```
protected String bootFileName
```
  - options
```
protected List<DhcpOption> options
```
- Constructor Detail
  - DHCP
```
public DHCP()
```
- Method Detail
  - getOpCode
```
public byte getOpCode()
```
    Returns:
    
    the opCode
  - setOpCode
```
public DHCP setOpCode(byte opCode)
```
    Parameters:
    
    opCode - the opCode to set
    
    Returns:
    
    this
  - getHardwareType
```
public byte getHardwareType()
```
    Returns:
    
    the hardwareType
  - setHardwareType
```
public DHCP setHardwareType(byte hardwareType)
```
    Parameters:
    
    hardwareType - the hardwareType to set
    
    Returns:
    
    this
  - getHardwareAddressLength
```
public byte getHardwareAddressLength()
```
    Returns:
    
    the hardwareAddressLength
  - setHardwareAddressLength
```
public DHCP setHardwareAddressLength(byte hardwareAddressLength)
```
    Parameters:
    
    hardwareAddressLength - the hardwareAddressLength to set
    
    Returns:
    
    this
  - getHops
```
public byte getHops()
```
    Returns:
    
    the hops
  - setHops
```
public DHCP setHops(byte hops)
```
    Parameters:
    
    hops - the hops to set
    
    Returns:
    
    this
  - getTransactionId
```
public int getTransactionId()
```
    Returns:
    
    the transactionId
  - setTransactionId
```
public DHCP setTransactionId(int transactionId)
```
    Parameters:
    
    transactionId - the transactionId to set
    
    Returns:
    
    this
  - getSeconds
```
public short getSeconds()
```
    Returns:
    
    the seconds
  - setSeconds
```
public DHCP setSeconds(short seconds)
```
    Parameters:
    
    seconds - the seconds to set
    
    Returns:
    
    this
  - getFlags
```
public short getFlags()
```
    Returns:
    
    the flags
  - setFlags
```
public DHCP setFlags(short flags)
```
    Parameters:
    
    flags - the flags to set
    
    Returns:
    
    this
  - getClientIPAddress
```
public int getClientIPAddress()
```
    Returns:
    
    the clientIPAddress
  - setClientIPAddress
```
public DHCP setClientIPAddress(int clientIPAddress)
```
    Parameters:
    
    clientIPAddress - the clientIPAddress to set
    
    Returns:
    
    this
  - getYourIPAddress
```
public int getYourIPAddress()
```
    Returns:
    
    the yourIPAddress
  - setYourIPAddress
```
public DHCP setYourIPAddress(int yourIPAddress)
```
    Parameters:
    
    yourIPAddress - the yourIPAddress to set
    
    Returns:
    
    this
  - getServerIPAddress
```
public int getServerIPAddress()
```
    Returns:
    
    the serverIPAddress
  - setServerIPAddress
```
public DHCP setServerIPAddress(int serverIPAddress)
```
    Parameters:
    
    serverIPAddress - the serverIPAddress to set
    
    Returns:
    
    this
  - getGatewayIPAddress
```
public int getGatewayIPAddress()
```
    Returns:
    
    the gatewayIPAddress
  - setGatewayIPAddress
```
public DHCP setGatewayIPAddress(int gatewayIPAddress)
```
    Parameters:
    
    gatewayIPAddress - the gatewayIPAddress to set
    
    Returns:
    
    this
  - getClientHardwareAddress
```
public byte[] getClientHardwareAddress()
```
    Returns:
    
    the clientHardwareAddress
  - setClientHardwareAddress
```
public DHCP setClientHardwareAddress(byte[] clientHardwareAddress)
```
    Parameters:
    
    clientHardwareAddress - the clientHardwareAddress to set
    
    Returns:
    
    this
  - getOption
```
public DhcpOption getOption(DHCP.DHCPOptionCode optionCode)
```
    Gets a specific DHCP option parameter.
    
    Parameters:
    
    optionCode - The option code to get
    
    Returns:
    
    The value of the option if it exists, null otherwise
  - getOptions
```
public List<DhcpOption> getOptions()
```
    Returns:
    
    the options
  - setOptions
```
public DHCP setOptions(List<DhcpOption> options)
```
    Parameters:
    
    options - the options to set
    
    Returns:
    
    this
  - getPacketType
```
public DHCP.MsgType getPacketType()
```
    Returns:
    
    the packetType base on option 53
  - getServerName
```
public String getServerName()
```
    Returns:
    
    the serverName
  - setServerName
```
public DHCP setServerName(String server)
```
    Parameters:
    
    server - the serverName to set
    
    Returns:
    
    this
  - getBootFileName
```
public String getBootFileName()
```
    Returns:
    
    the bootFileName
  - setBootFileName
```
public DHCP setBootFileName(String bootFile)
```
    Parameters:
    
    bootFile - the bootFileName to set
    
    Returns:
    
    this
  - serialize
```
public byte[] serialize()
```
    Description copied from interface: IPacket
    
    Sets all payloads parent packet if applicable, then serializes this packet and all payloads.
    
    Returns:
    
    a byte[] containing this packet and payloads
  - writeString
```
protected void writeString(String string,
                           ByteBuffer bb,
                           int maxLength)
```
  - deserializer
```
public static Deserializer<DHCP> deserializer()
```
    Deserializer function for DHCP packets.
    
    Returns:
    
    deserializer function
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Modifier and Type	Class	Description
`static class`	`DHCP.DHCPOptionCode`
`static class`	`DHCP.MsgType`

Class DHCP

Nested Class Summary

Field Summary

Fields inherited from class org.onlab.packet.BasePacket

Constructor Summary

Method Summary

Methods inherited from class org.onlab.packet.BasePacket

Methods inherited from class java.lang.Object

Field Detail

MIN_HEADER_LENGTH

OPCODE_REQUEST

OPCODE_REPLY

HWTYPE_ETHERNET

opCode

hardwareType

hardwareAddressLength

hops

transactionId

seconds

flags

clientIPAddress

yourIPAddress

serverIPAddress

gatewayIPAddress

clientHardwareAddress

serverName

bootFileName

options

Constructor Detail

DHCP

Method Detail

getOpCode

setOpCode

getHardwareType

setHardwareType

getHardwareAddressLength

setHardwareAddressLength

getHops

setHops

getTransactionId

setTransactionId

getSeconds

setSeconds

getFlags

setFlags

getClientIPAddress

setClientIPAddress

getYourIPAddress

setYourIPAddress

getServerIPAddress

setServerIPAddress

getGatewayIPAddress

setGatewayIPAddress

getClientHardwareAddress

setClientHardwareAddress

getOption

getOptions

setOptions

getPacketType

getServerName

setServerName

getBootFileName

setBootFileName

serialize

writeString

deserializer

toString