mirror of
https://github.com/mfulz/qmk_firmware.git
synced 2025-10-31 13:22:31 +01:00
175 lines
6.5 KiB
C
175 lines
6.5 KiB
C
/*
|
|
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 DHCPClientApp.c.
|
|
*/
|
|
|
|
#ifndef _DHCPCLIENT_APP_H_
|
|
#define _DHCPCLIENT_APP_H_
|
|
|
|
/* Includes: */
|
|
#include <stdio.h>
|
|
|
|
#include <uip.h>
|
|
|
|
#include "../Webserver.h"
|
|
|
|
/* Macros: */
|
|
/** UDP listen port for a BOOTP server. */
|
|
#define DHCPC_SERVER_PORT 67
|
|
|
|
/** UDP listen port for a BOOTP client. */
|
|
#define DHCPC_CLIENT_PORT 68
|
|
|
|
/** BOOTP message type for a BOOTP REQUEST message. */
|
|
#define DHCP_OP_BOOTREQUEST 0x01
|
|
|
|
/** BOOTP message type for a BOOTP REPLY message. */
|
|
#define DHCP_OP_BOOTREPLY 0x02
|
|
|
|
/** BOOTP flag for a BOOTP broadcast message. */
|
|
#define BOOTP_BROADCAST 0x8000
|
|
|
|
/** Magic DHCP cookie for a BOOTP message to identify it as a DHCP message. */
|
|
#define DHCP_MAGIC_COOKIE 0x63538263
|
|
|
|
/** Unique transaction ID used to identify DHCP responses to the client. */
|
|
#define DHCP_TRANSACTION_ID 0x13245466
|
|
|
|
/** DHCP message type for a DISCOVER message. */
|
|
#define DHCP_DISCOVER 1
|
|
|
|
/** DHCP message type for an OFFER message. */
|
|
#define DHCP_OFFER 2
|
|
|
|
/** DHCP message type for a REQUEST message. */
|
|
#define DHCP_REQUEST 3
|
|
|
|
/** DHCP message type for a DECLINE message. */
|
|
#define DHCP_DECLINE 4
|
|
|
|
/** DHCP message type for an ACK message. */
|
|
#define DHCP_ACK 5
|
|
|
|
/** DHCP message type for a NAK message. */
|
|
#define DHCP_NAK 6
|
|
|
|
/** DHCP message type for a RELEASE message. */
|
|
#define DHCP_RELEASE 7
|
|
|
|
/** DHCP medium type for standard Ethernet. */
|
|
#define DHCP_HTYPE_ETHERNET 1
|
|
|
|
/** DHCP message option for the network subnet mask. */
|
|
#define DHCP_OPTION_SUBNET_MASK 1
|
|
|
|
/** DHCP message option for the network gateway IP. */
|
|
#define DHCP_OPTION_ROUTER 3
|
|
|
|
/** DHCP message option for the network DNS server. */
|
|
#define DHCP_OPTION_DNS_SERVER 6
|
|
|
|
/** DHCP message option for the requested client IP address. */
|
|
#define DHCP_OPTION_REQ_IPADDR 50
|
|
|
|
/** DHCP message option for the IP address lease time. */
|
|
#define DHCP_OPTION_LEASE_TIME 51
|
|
|
|
/** DHCP message option for the DHCP message type. */
|
|
#define DHCP_OPTION_MSG_TYPE 53
|
|
|
|
/** DHCP message option for the DHCP server IP. */
|
|
#define DHCP_OPTION_SERVER_ID 54
|
|
|
|
/** DHCP message option for the list of required options from the server. */
|
|
#define DHCP_OPTION_REQ_LIST 55
|
|
|
|
/** DHCP message option for the options list terminator. */
|
|
#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: */
|
|
/** States for each DHCP connection to a DHCP client. */
|
|
enum DHCP_States_t
|
|
{
|
|
DHCP_STATE_SendDiscover, /**< Send DISCOVER packet to retrieve DHCP lease offers */
|
|
DHCP_STATE_WaitForOffer, /**< Waiting for OFFER packet giving available DHCP leases */
|
|
DHCP_STATE_SendRequest, /**< Send REQUEST packet to request a DHCP lease */
|
|
DHCP_STATE_WaitForACK, /**< Wait for ACK packet to complete the DHCP lease */
|
|
DHCP_STATE_AddressLeased, /**< DHCP address has been leased from a DHCP server */
|
|
};
|
|
|
|
/* Function Prototypes: */
|
|
void DHCPClientApp_Init(void);
|
|
void DHCPClientApp_Callback(void);
|
|
|
|
#if defined(INCLUDE_FROM_DHCPCLIENTAPP_C)
|
|
static uint16_t DHCPClientApp_FillDHCPHeader(DHCP_Header_t* const DHCPHeader,
|
|
const uint8_t DHCPMessageType,
|
|
uip_udp_appstate_t* const AppState);
|
|
static uint8_t DHCPClientApp_SetOption(uint8_t* DHCPOptionList,
|
|
const uint8_t Option,
|
|
const uint8_t DataLen,
|
|
void* const OptionData);
|
|
static bool DHCPClientApp_GetOption(const uint8_t* DHCPOptionList,
|
|
const uint8_t Option,
|
|
void* const Destination);
|
|
#endif
|
|
#endif
|