Package org.drasyl.handler.remote.portmapper

Class PortMapper

java.lang.Object
io.netty.channel.ChannelHandlerAdapter
io.netty.channel.ChannelInboundHandlerAdapter
io.netty.channel.SimpleChannelInboundHandler<InetAddressedMessage<io.netty.buffer.ByteBuf>>
org.drasyl.handler.remote.portmapper.PortMapper
All Implemented Interfaces:
io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler
public class PortMapper extends io.netty.channel.SimpleChannelInboundHandler<InetAddressedMessage<io.netty.buffer.ByteBuf>>
This handler tries to create a port forwarding for the UDP server using different methods (PCP, NAT-PMP, UPnP-IGD, etc.). For this purpose, the individual methods are tried one after one. If all methods fail, the program waits for RETRY_DELAY and then tries all methods again. It never gives up.

  • Nested Class Summary

    Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

    io.netty.channel.ChannelHandler.Sharable

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final Duration
    MAPPING_LIFETIME
     
    static final Duration
    RETRY_DELAY
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    PortMapper()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    acceptInboundMessage(Object msg)
     
    void
    channelInactive(io.netty.channel.ChannelHandlerContext ctx)
     
    protected void
    channelRead0(io.netty.channel.ChannelHandlerContext ctx, InetAddressedMessage<io.netty.buffer.ByteBuf> msg)
     
    void
    userEventTriggered(io.netty.channel.ChannelHandlerContext ctx, Object evt)
     

    Methods inherited from class io.netty.channel.SimpleChannelInboundHandler

    channelRead

    Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

    channelActive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught

    Methods inherited from class io.netty.channel.ChannelHandlerAdapter

    ensureNotSharable, handlerAdded, handlerRemoved, isSharable

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface io.netty.channel.ChannelHandler

    handlerAdded, handlerRemoved

  • Field Details

    • MAPPING_LIFETIME

      public static final Duration MAPPING_LIFETIME

    • RETRY_DELAY

      public static final Duration RETRY_DELAY

  • Constructor Details

    • PortMapper

      public PortMapper()

  • Method Details

    • acceptInboundMessage

      public boolean acceptInboundMessage(Object msg)
      Overrides:
      acceptInboundMessage in class io.netty.channel.SimpleChannelInboundHandler<InetAddressedMessage<io.netty.buffer.ByteBuf>>

    • channelRead0

      protected void channelRead0(io.netty.channel.ChannelHandlerContext ctx, InetAddressedMessage<io.netty.buffer.ByteBuf> msg)
      Specified by:
      channelRead0 in class io.netty.channel.SimpleChannelInboundHandler<InetAddressedMessage<io.netty.buffer.ByteBuf>>

    • channelInactive

      public void channelInactive(io.netty.channel.ChannelHandlerContext ctx)
      Specified by:
      channelInactive in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      channelInactive in class io.netty.channel.ChannelInboundHandlerAdapter

    • userEventTriggered

      public void userEventTriggered(io.netty.channel.ChannelHandlerContext ctx, Object evt)
      Specified by:
      userEventTriggered in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      userEventTriggered in class io.netty.channel.ChannelInboundHandlerAdapter