X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/1aeb5056d6943331ee2d11807bcc0a6480ad1ca0..a960e4b3b2ae72c6c3573fb690a1b9cde1642bc0:/Projects/Webserver/Lib/DHCPApp.h

diff --git a/Projects/Webserver/Lib/DHCPApp.h b/Projects/Webserver/Lib/DHCPApp.h
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+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2010.
+              
+  dean [at] fourwalledcubicle [dot] com
+      www.fourwalledcubicle.com
+*/
+
+/*
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this 
+  software and its documentation for any purpose is hereby granted
+  without fee, 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 DHCPApp.c.
+ */
+
+#ifndef _DHCP_APP_H_
+#define _DHCP_APP_H_
+
+	/* Includes: */
+		#include <stdio.h>
+		
+		#include <uip.h>
+		
+		#include "../Webserver.h"
+		
+	/* Macros: */
+		#define DHCPC_SERVER_PORT         67
+		#define DHCPC_CLIENT_PORT         68
+
+		#define DHCP_OP_BOOTREQUEST       0x01
+		#define DHCP_OP_BOOTREPLY         0x02
+
+		#define BOOTP_BROADCAST           0x8000
+		
+		#define DHCP_MAGIC_COOKIE         0x63538263
+		
+		#define DHCP_TRANSACTION_ID       0x13245466
+
+		#define DHCP_DISCOVER             1
+		#define DHCP_OFFER                2
+		#define DHCP_REQUEST              3
+		#define DHCP_DECLINE              4
+		#define DHCP_ACK                  5
+		#define DHCP_NAK                  6
+		#define DHCP_RELEASE              7
+
+		#define DHCP_HTYPE_ETHERNET       1
+
+		#define DHCP_OPTION_SUBNET_MASK   1
+		#define DHCP_OPTION_ROUTER        3
+		#define DHCP_OPTION_DNS_SERVER    6
+		#define DHCP_OPTION_REQ_IPADDR    50
+		#define DHCP_OPTION_LEASE_TIME    51
+		#define DHCP_OPTION_MSG_TYPE      53
+		#define DHCP_OPTION_SERVER_ID     54
+		#define DHCP_OPTION_REQ_LIST      55
+		#define DHCP_OPTION_END           255
+
+	/* Type Defines: */
+		/** Type define for a DHCP packet inside an Ethernet frame. */
+		typedef struct
+		{
+			uint8_t  Operation; /**< DHCP operation, either DHCP_OP_BOOTREQUEST or DHCP_OP_BOOTREPLY */
+			uint8_t  HardwareType; /**< Hardware carrier type constant */
+			uint8_t  HardwareAddressLength;  /**< Length in bytes of a hardware (MAC) address on the network */
+			uint8_t  Hops; /**< Number of hops required to reach the server, unused */
+
+			uint32_t TransactionID; /**< Unique ID of the DHCP packet, for positive matching between sent and received packets */
+
+			uint16_t ElapsedSeconds; /**< Elapsed seconds since the request was made */
+			uint16_t Flags; /**< BOOTP packet flags */
+			
+			uip_ipaddr_t ClientIP; /**< Client IP address, if already leased an IP */
+			uip_ipaddr_t YourIP; /**< Client IP address */
+			uip_ipaddr_t NextServerIP; /**< Legacy BOOTP protocol field, unused for DHCP */
+			uip_ipaddr_t RelayAgentIP; /**< Legacy BOOTP protocol field, unused for DHCP */
+			
+			uint8_t ClientHardwareAddress[16]; /**< Hardware (MAC) address of the client making a request to the DHCP server */
+			uint8_t ServerHostnameString[64]; /**< Legacy BOOTP protocol field, unused for DHCP */
+			uint8_t BootFileName[128]; /**< Legacy BOOTP protocol field, unused for DHCP */
+			
+			uint32_t Cookie; /**< Magic BOOTP protocol cookie to indicate a valid packet */
+			
+			uint8_t  Options[]; /** DHCP message options */
+		} DHCP_Header_t;
+
+	/* Enums: */
+		enum DHCP_States_t
+		{
+			DHCP_STATE_SendDiscover,
+			DHCP_STATE_WaitForResponse,
+			DHCP_STATE_SendRequest,
+			DHCP_STATE_WaitForACK,
+			DHCP_STATE_AddressLeased,
+		};
+
+	/* Function Prototypes: */
+		void DHCPApp_Init(void);
+		void DHCPApp_Callback(void);
+		
+		uint16_t DHCPApp_FillDHCPHeader(DHCP_Header_t* DHCPHeader, uint8_t DHCPMessageType, uip_udp_appstate_t* AppState);
+		uint8_t  DHCPApp_SetOption(uint8_t* DHCPOptionList, uint8_t Option, uint8_t DataLen, void* Source);
+		bool     DHCPApp_GetOption(uint8_t* DHCPOptionList, uint8_t Option, void* Destination);
+		
+#endif