From 74298f8ca11dc8d3b0359d1d4e124d6494c3eeac Mon Sep 17 00:00:00 2001 From: Nicolas Schodet Date: Fri, 10 Apr 2009 01:15:42 +0200 Subject: * digital/avr/modules/usb: - imported LUFA. --- .../modules/usb/lufa/Demos/RNDISEthernet/DHCP.h | 125 +++++++++++++++++++++ 1 file changed, 125 insertions(+) create mode 100644 digital/avr/modules/usb/lufa/Demos/RNDISEthernet/DHCP.h (limited to 'digital/avr/modules/usb/lufa/Demos/RNDISEthernet/DHCP.h') diff --git a/digital/avr/modules/usb/lufa/Demos/RNDISEthernet/DHCP.h b/digital/avr/modules/usb/lufa/Demos/RNDISEthernet/DHCP.h new file mode 100644 index 00000000..f1e14e19 --- /dev/null +++ b/digital/avr/modules/usb/lufa/Demos/RNDISEthernet/DHCP.h @@ -0,0 +1,125 @@ +/* + 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 DHCP.c. + */ + +#ifndef _DHCP_H_ +#define _DHCP_H_ + + /* Includes: */ + #include + #include + + #include "EthernetProtocols.h" + #include "Ethernet.h" + #include "ProtocolDecoders.h" + + /* Macros: */ + /** DHCP operation constant, indicating a request from a host to a DHCP server */ + #define DHCP_OP_BOOTREQUEST 0x01 + + /** DHCP operation constant, indicating a reply from a DHCP server to a host */ + #define DHCP_OP_BOOTREPLY 0x02 + + /** Hardware type constant, indicating Ethernet as a carrier */ + #define DHCP_HTYPE_ETHERNET 0x01 + + /** Magic boot protocol "cookie", inserted into all BOOTP packets (BOOTP is the carrier of DHCP) */ + #define DHCP_MAGIC_COOKIE 0x63825363 + + /** DHCP option list entry header, indicating that a subnet mask will follow */ + #define DHCP_OPTION_SUBNETMASK 1 + + /** DHCP option list entry header, indicating that the DHCP message type constant will follow */ + #define DHCP_OPTION_MESSAGETYPE 53 + + /** DHCP option list entry header, indicating that the IP address of the DHCP server will follow */ + #define DHCP_OPTION_DHCPSERVER 54 + + /** DHCP option list entry header, used to pad out option data */ + #define DHCP_OPTION_PAD 0 + + /** DHCP option list entry header, indicating the end of option data */ + #define DHCP_OPTION_END 255 + + /** Message type constant, used in the DHCP option data field, requesting that a DHCP server offer an IP address */ + #define DHCP_MESSAGETYPE_DISCOVER 1 + + /** Message type constant, used in the DHCP option data field, indicating that a DHCP server is offering an IP address */ + #define DHCP_MESSAGETYPE_OFFER 2 + + /** Message type constant, used in the DHCP option data field, requesting that a DHCP server lease a given IP address */ + #define DHCP_MESSAGETYPE_REQUEST 3 + + /** Message type constant, used in the DHCP option data field, declining an offered DHCP server IP address lease */ + #define DHCP_MESSAGETYPE_DECLINE 4 + + /** Message type constant, used in the DHCP option data field, ACKing a host IP lease request */ + #define DHCP_MESSAGETYPE_ACK 5 + + /** Message type constant, used in the DHCP option data field, NACKing a host IP lease request */ + #define DHCP_MESSAGETYPE_NACK 6 + + /** Message type constant, used in the DHCP option data field, indicating that a host is releasing a leased IP address */ + #define DHCP_MESSAGETYPE_RELEASE 7 + + /* 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 postive matching between sent and recieved packets */ + + uint16_t ElapsedSeconds; /**< Elapsed seconds since the request was made */ + uint16_t Flags; /**< BOOTP packet flags */ + + IP_Address_t ClientIP; /**< Client IP address, if already leased an IP */ + IP_Address_t YourIP; /**< Client IP address */ + IP_Address_t NextServerIP; /**< Legacy BOOTP protocol field, unused for DHCP */ + IP_Address_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 */ + } DHCP_Header_t; + + /* Function Prototypes: */ + int16_t DHCP_ProcessDHCPPacket(void* IPHeaderInStart, void* DHCPHeaderInStart, void* DHCPHeaderOutStart); + +#endif -- cgit v1.2.3