Fixes #17: Convert IPv4 wildcard address (0.0.0.0) to IPv6 wildcard (::)

on DHCPv6 channel.

Author: agrabil

Jagornet-DHCP/src/com/jagornet/dhcp/server/netty/DhcpV6ChannelHandler.java

@@ -38,6 +38,7 @@
 
 import com.jagornet.dhcp.message.DhcpV6Message;
 import com.jagornet.dhcp.server.request.DhcpV6MessageHandler;
+import com.jagornet.dhcp.util.DhcpConstants;
 
 /**
  * Title: DhcpChannelHandler
@@ -68,7 +69,10 @@ public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Ex
             	log.info("Received: " + dhcpMessage.toString());
 
             SocketAddress remoteAddress = e.getRemoteAddress();
-            InetAddress localAddr = ((InetSocketAddress)e.getChannel().getLocalAddress()).getAddress(); 
+            InetAddress localAddr = ((InetSocketAddress)e.getChannel().getLocalAddress()).getAddress();
+            if (localAddr.equals(DhcpConstants.ZEROADDR_V4)) {
+            	localAddr = DhcpConstants.ZEROADDR_V6;
+            }
             DhcpV6Message replyMessage = 
             	DhcpV6MessageHandler.handleMessage(localAddr, dhcpMessage);
 

Jagornet-DHCP/src/com/jagornet/dhcp/server/netty/NettyDhcpServer.java

@@ -31,7 +31,6 @@
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.net.NetworkInterface;
-import java.net.SocketAddress;
 import java.net.SocketException;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -237,7 +236,7 @@ public void start() throws Exception
 		            channel.getConfig().setSendBufferSize(sendBufSize);
 
 		            // must be bound in order to join multicast group
-		            SocketAddress wildAddr = new InetSocketAddress(v6Port);
+		            InetSocketAddress wildAddr = new InetSocketAddress(DhcpConstants.ZEROADDR_V6, v6Port);
 		            log.info("Binding New I/O multicast channel on IPv6 wildcard address: " + wildAddr);
 		            ChannelFuture future = channel.bind(wildAddr);
 		            future.await();
@@ -350,7 +349,7 @@ public void start() throws Exception
 			            channel.getConfig().setReceiveBufferSize(receiveBufSize);
 			            channel.getConfig().setSendBufferSize(sendBufSize);
 
-			            InetSocketAddress wildAddr = new InetSocketAddress(v4Port);
+			            InetSocketAddress wildAddr = new InetSocketAddress(DhcpConstants.ZEROADDR_V4, v4Port);
 			            log.info("Binding New I/O datagram channel on IPv4 wildcard address: " + wildAddr);
 			            ChannelFuture future = channel.bind(wildAddr);
 			            future.await();