/* 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 Ethernet.c. */ #ifndef _ETHERNET_H_ #define _ETHERNET_H_ /* Includes: */ #include #include #include "EthernetProtocols.h" #include "ProtocolDecoders.h" #include "ICMP.h" #include "TCP.h" #include "UDP.h" #include "DHCP.h" #include "ARP.h" #include "IP.h" /* Macros: */ /** Physical MAC address of the virtual server on the network */ #define SERVER_MAC_ADDRESS {0x00, 0x01, 0x00, 0x01, 0x00, 0x01} /** Physical MAC address of the network broadcast address */ #define BROADCAST_MAC_ADDRESS {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF} /** Performs a comparison between two MAC addresses, indicating if they are identical. * * \param MAC1 First MAC address * \param MAC2 Second MAC address * * \return True if the addresses match, false otherwise */ #define MAC_COMPARE(MAC1, MAC2) (memcmp(MAC1, MAC2, sizeof(MAC_Address_t)) == 0) /** Maximum size of an incomming or outgoing Ethernet frame in bytes */ #define ETHERNET_FRAME_SIZE_MAX 1500 /** Minimum size of an Ethernet packet in bytes, to conform to the Ethernet V2 packet standard */ #define ETHERNET_VER2_MINSIZE 0x0600 /** Return value for all sub protocol handling routines, indicating that no response packet has been generated */ #define NO_RESPONSE 0 /** Return value for all sub protocol handling routines, indicating that the packet has not yet been handled */ #define NO_PROCESS -1 /* Type Defines: */ /** Type define for an Ethernet frame buffer. */ typedef struct { uint8_t FrameData[ETHERNET_FRAME_SIZE_MAX]; /**< Ethernet frame contents */ uint16_t FrameLength; /**< Length in bytes of the Ethernet frame stored in the buffer */ bool FrameInBuffer; /**< Indicates if a frame is currently stored in the buffer */ } Ethernet_Frame_Info_t; /** Type define for an Ethernet frame header */ typedef struct { MAC_Address_t Destination; /**< Physical MAC address of the packet recipient */ MAC_Address_t Source; /**< Physics MAC address of the packet source */ union { uint16_t EtherType; /**< Ethernet packet subprotocol type, for Ethernet V2 packets */ uint16_t Length; /**< Ethernet frame length, for Ethernet V1 packets */ }; } Ethernet_Frame_Header_t; /* External Variables: */ extern Ethernet_Frame_Info_t FrameIN; extern Ethernet_Frame_Info_t FrameOUT; extern const MAC_Address_t ServerMACAddress; extern const IP_Address_t ServerIPAddress; extern const MAC_Address_t BroadcastMACAddress; extern const IP_Address_t BroadcastIPAddress; extern const IP_Address_t ClientIPAddress; /* Function Prototypes: */ void Ethernet_ProcessPacket(void); uint16_t Ethernet_Checksum16(void* Data, uint16_t Bytes); #endif