--- /dev/null
+/*\r
+ LUFA Library\r
+ Copyright (C) Dean Camera, 2009.\r
+ \r
+ dean [at] fourwalledcubicle [dot] com\r
+ www.fourwalledcubicle.com\r
+*/\r
+\r
+/*\r
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+ Permission to use, copy, modify, and distribute this software\r
+ and its documentation for any purpose and without fee is hereby\r
+ granted, provided that the above copyright notice appear in all\r
+ copies and that both that the copyright notice and this\r
+ permission notice and warranty disclaimer appear in supporting\r
+ documentation, and that the name of the author not be used in\r
+ advertising or publicity pertaining to distribution of the\r
+ software without specific, written prior permission.\r
+\r
+ The author disclaim all warranties with regard to this\r
+ software, including all implied warranties of merchantability\r
+ and fitness. In no event shall the author be liable for any\r
+ special, indirect or consequential damages or any damages\r
+ whatsoever resulting from loss of use, data or profits, whether\r
+ in an action of contract, negligence or other tortious action,\r
+ arising out of or in connection with the use or performance of\r
+ this software.\r
+*/\r
+\r
+/** \file\r
+ *\r
+ * Header file for IP.c.\r
+ */\r
+ \r
+#ifndef _IP_H_\r
+#define _IP_H_\r
+\r
+ /* Includes: */\r
+ #include <avr/io.h>\r
+ #include <string.h>\r
+ \r
+ #include "EthernetProtocols.h"\r
+ #include "Ethernet.h"\r
+ #include "ProtocolDecoders.h"\r
+ \r
+ /* Macros: */\r
+ /** Protocol IP address of the host (client) machine, once assigned by DHCP */\r
+ #define CLIENT_IP_ADDRESS { 10, 0, 0, 1}\r
+\r
+ /** Protocol IP address of the virtual server machine */\r
+ #define SERVER_IP_ADDRESS { 10, 0, 0, 2}\r
+\r
+ /** Protocol IP address of the broadcast address */\r
+ #define BROADCAST_IP_ADDRESS {0xFF, 0xFF, 0xFF, 0xFF}\r
+\r
+ /** Default Time To Live (TTL) value for sent packets, indicating the maximum allowable hops until their destination is reached */\r
+ #define DEFAULT_TTL 128\r
+ \r
+ /** Performs a comparison between two IP addresses, indicating if they are identical.\r
+ * \r
+ * \param IP1 First IP address\r
+ * \param IP2 Second IP address\r
+ *\r
+ * \return True if the addresses match, false otherwise\r
+ */\r
+ #define IP_COMPARE(IP1, IP2) (memcmp(IP1, IP2, sizeof(IP_Address_t)) == 0)\r
+ \r
+ /* Type Defines: */\r
+ /** Type define of an IP packet header. */\r
+ typedef struct\r
+ {\r
+ unsigned char HeaderLength : 4; /**< Total length of the packet header, in 4-byte blocks */\r
+ unsigned char Version : 4; /**< IP protocol version */\r
+ uint8_t TypeOfService; /**< Special service type identifier, indicating delay/throughput/reliability levels */\r
+ uint16_t TotalLength; /**< Total length of the IP packet, in bytes */\r
+\r
+ uint16_t Identification; /**< Identification value for identifying fragmented packets */\r
+ unsigned int FragmentOffset : 13; /**< Offset of this IP fragment */\r
+ unsigned int Flags : 3; /**< Fragment flags, to indicate if a packet is fragmented */\r
+\r
+ uint8_t TTL; /**< Maximum allowable number of hops to reach the packet destination */\r
+ uint8_t Protocol; /**< Encapsulated protocol type */\r
+ uint16_t HeaderChecksum; /**< Ethernet checksum of the IP header */\r
+ \r
+ IP_Address_t SourceAddress; /**< Source protocol IP address of the packet */\r
+ IP_Address_t DestinationAddress; /**< Destination protocol IP address of the packet */\r
+ } IP_Header_t;\r
+ \r
+ /* Function Prototypes: */\r
+ int16_t IP_ProcessIPPacket(void* InDataStart, void* OutDataStart);\r
+\r
+#endif\r