/* *	Copied from LiMon - BOOTP. * *	Copyright 1994, 1995, 2000 Neil Russell. *	(See License) *	Copyright 2000 Paolo Scaffardi */#ifndef __BOOTP_H__#define __BOOTP_H__#ifndef __NET_H__#include	"net.h"#endif /* __NET_H__ *//**********************************************************************//* *	BOOTP header. */#if (CONFIG_COMMANDS & CFG_CMD_DHCP)#define OPT_SIZE 312	/* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */#else#define OPT_SIZE 64#endiftypedef struct{	uchar		bp_op;		/* Operation				*/# define OP_BOOTREQUEST	1# define OP_BOOTREPLY	2	uchar		bp_htype;	/* Hardware type			*/# define HWT_ETHER	1	uchar		bp_hlen;	/* Hardware address length		*/# define HWL_ETHER	6	uchar		bp_hops;	/* Hop count (gateway thing)		*/	ulong		bp_id;		/* Transaction ID			*/	ushort		bp_secs;	/* Seconds since boot			*/	ushort		bp_spare1;	/* Alignment				*/	IPaddr_t	bp_ciaddr;	/* Client IP address			*/	IPaddr_t	bp_yiaddr;	/* Your (client) IP address		*/	IPaddr_t	bp_siaddr;	/* Server IP address			*/	IPaddr_t	bp_giaddr;	/* Gateway IP address			*/	uchar		bp_chaddr[16];	/* Client hardware address		*/	char		bp_sname[64];	/* Server host name			*/	char		bp_file[128];	/* Boot file name			*/	char		bp_vend[OPT_SIZE];	/* Vendor information			*/}	Bootp_t;#define BOOTP_HDR_SIZE	sizeof (Bootp_t)#define BOOTP_SIZE	(ETHER_HDR_SIZE + IP_HDR_SIZE + BOOTP_HDR_SIZE)/**********************************************************************//* *	Global functions and variables. *//* bootp.c */extern ulong	BootpID;		/* ID of cur BOOTP request		*/extern char	BootFile[128];		/* Boot file name			*/extern int	BootpTry;#ifdef CONFIG_BOOTP_RANDOM_DELAYulong		seed1, seed2;		/* seed for random BOOTP delay		*/#endif/* Send a BOOTP request */extern void	BootpRequest (void);/****************** DHCP Support *********************/extern void DhcpRequest(void);/* DHCP States */typedef enum { INIT, 	       INIT_REBOOT, 	       REBOOTING, 	       SELECTING, 	       REQUESTING, 	       REBINDING, 	       BOUND, 	       RENEWING } dhcp_state_t;#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 SELECT_TIMEOUT 3	/* Seconds to wait for offers *//**********************************************************************/#endif /* __BOOTP_H__ */