Seperated out OTG, Device and Host mode demos into seperate folders for clarity. Adjusted makefiles so that the path to the LUFA library can be set in one place.

Demos/Device/RNDISEthernet/IP.h

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+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2009.
+              
+  dean [at] fourwalledcubicle [dot] com
+      www.fourwalledcubicle.com
+*/
+
+/*
+  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, and distribute this software
+  and its documentation for any purpose and without fee is hereby
+  granted, provided that the above copyright notice appear in all
+  copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaim all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *
+ *  Header file for IP.c.
+ */
+ 
+#ifndef _IP_H_
+#define _IP_H_
+
+	/* Includes: */
+		#include <avr/io.h>
+		#include <string.h>
+		
+		#include "EthernetProtocols.h"
+		#include "Ethernet.h"
+		#include "ProtocolDecoders.h"
+	
+	/* Macros: */
+		/** Protocol IP address of the host (client) machine, once assigned by DHCP */
+		#define CLIENT_IP_ADDRESS                { 10,     0,    0,    1}
+
+		/** Protocol IP address of the virtual server machine */
+		#define SERVER_IP_ADDRESS                { 10,     0,    0,    2}
+
+		/** Protocol IP address of the broadcase address */
+		#define BROADCAST_IP_ADDRESS             {0xFF, 0xFF, 0xFF, 0xFF}
+
+		/** Default Time To Live (TTL) value for sent packets, indicating the maximum allowable hops until their destination is reached */
+		#define DEFAULT_TTL                      128
+		
+		/** Performs a comparison between two IP addresses, indicating if they are identical.
+		 *  
+		 *  \param IP1  First IP address
+		 *  \param IP2  Second IP address
+		 *
+		 *  \return True if the addresses match, false otherwise
+		 */
+		#define IP_COMPARE(IP1, IP2)             (memcmp(IP1, IP2, sizeof(IP_Address_t)) == 0)
+		
+	/* Type Defines: */
+		/** Type define of an IP packet header. */
+		typedef struct
+		{
+			unsigned int  HeaderLength   : 4; /**< Total length of the packet header, in 4-byte blocks */
+			unsigned int  Version        : 4; /**< IP protocol version */
+			unsigned int  TypeOfService  : 8; /**< Special service type identifier, indicating delay/throughput/reliability levels */
+			unsigned int  TotalLength    : 16; /**< Total length of the IP packet, in bytes */
+
+			unsigned int  Identification : 16; /**< Idenfication value for identifying fragmented packets */
+			unsigned int  FragmentOffset : 13; /**< Offset of this IP fragment */
+			unsigned int  Flags          : 3; /**< Fragment flags, to indicate if a packet is fragmented */
+
+			unsigned int  TTL            : 8; /**< Maximum allowable number of hops to reach the packet destination */
+			unsigned int  Protocol       : 8; /**< Encapsulated protocol type */
+			unsigned int  HeaderChecksum : 16; /**< Ethernet checksum of the IP header */
+			
+			IP_Address_t  SourceAddress; /**< Source protocol IP address of the packet */
+			IP_Address_t  DestinationAddress; /**< Destination protocol IP address of the packet */
+		} IP_Header_t;
+		
+	/* Function Prototypes: */
+		int16_t IP_ProcessIPPacket(void* InDataStart, void* OutDataStart);
+
+#endif