112 lines
3.8 KiB
C
112 lines
3.8 KiB
C
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2019.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2019 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaims all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Header file for Ethernet.c.
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*/
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#ifndef _ETHERNET_H_
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#define _ETHERNET_H_
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/* Includes: */
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#include <avr/io.h>
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#include <string.h>
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#include "Config/AppConfig.h"
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#include "EthernetProtocols.h"
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#include "ProtocolDecoders.h"
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#include "ICMP.h"
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#include "TCP.h"
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#include "UDP.h"
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#include "DHCP.h"
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#include "ARP.h"
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#include "IP.h"
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/* Macros: */
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/** Physical MAC address of the network broadcast address. */
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#define BROADCAST_MAC_ADDRESS {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}
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/** Performs a comparison between two MAC addresses, indicating if they are identical.
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*
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* \param[in] MAC1 First MAC address
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* \param[in] MAC2 Second MAC address
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*
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* \return True if the addresses match, \c false otherwise
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*/
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#define MAC_COMPARE(MAC1, MAC2) (memcmp(MAC1, MAC2, sizeof(MAC_Address_t)) == 0)
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/** Maximum size of an incoming or outgoing Ethernet frame in bytes. */
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#define ETHERNET_FRAME_SIZE_MAX 1500
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/** Minimum size of an Ethernet packet in bytes, to conform to the Ethernet V2 packet standard. */
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#define ETHERNET_VER2_MINSIZE 0x0600
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/** Return value for all sub protocol handling routines, indicating that no response packet has been generated. */
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#define NO_RESPONSE 0
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/** Return value for all sub protocol handling routines, indicating that the packet has not yet been handled. */
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#define NO_PROCESS -1
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/* Type Defines: */
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/** Type define for an Ethernet frame buffer data and information structure. */
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typedef struct
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{
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uint8_t FrameData[ETHERNET_FRAME_SIZE_MAX]; /**< Ethernet frame contents. */
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uint16_t FrameLength; /**< Length in bytes of the Ethernet frame stored in the buffer. */
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} Ethernet_Frame_Info_t;
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/** Type define for an Ethernet frame header. */
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typedef struct
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{
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MAC_Address_t Destination; /**< Physical MAC address of the packet recipient */
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MAC_Address_t Source; /**< Physics MAC address of the packet source */
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uint16_t EtherType; /**< Ethernet packet sub-protocol type, for Ethernet V2 packets */
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} Ethernet_Frame_Header_t;
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/* External Variables: */
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extern Ethernet_Frame_Info_t FrameIN;
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extern Ethernet_Frame_Info_t FrameOUT;
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extern const MAC_Address_t ServerMACAddress;
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extern const IP_Address_t ServerIPAddress;
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extern const MAC_Address_t BroadcastMACAddress;
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extern const IP_Address_t BroadcastIPAddress;
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extern const IP_Address_t ClientIPAddress;
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/* Function Prototypes: */
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void Ethernet_ProcessPacket(void);
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uint16_t Ethernet_Checksum16(void* Data,
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uint16_t Bytes);
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#endif
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