1/*
2 *	Copied from LiMon - BOOTP.
3 *
4 *	Copyright 1994, 1995, 2000 Neil Russell.
5 *	(See License)
6 *	Copyright 2000 Paolo Scaffardi
7 */
8
9#ifndef __BOOTP_H__
10#define __BOOTP_H__
11
12#ifndef __NET_H__
13#include <net.h>
14#endif /* __NET_H__ */
15
16/**********************************************************************/
17
18#define PORT_BOOTPS	67		/* BOOTP server UDP port */
19#define PORT_BOOTPC	68		/* BOOTP client UDP port */
20
21/*
22 *	BOOTP header.
23 */
24#if defined(CONFIG_CMD_DHCP)
25/* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
26#define OPT_FIELD_SIZE 312
27#if defined(CONFIG_BOOTP_VENDOREX)
28extern u8 *dhcp_vendorex_prep(u8 *e); /*rtn new e after add own opts. */
29extern u8 *dhcp_vendorex_proc(u8 *e); /*rtn next e if mine,else NULL  */
30#endif
31#else
32#define OPT_FIELD_SIZE 64
33#endif
34
35struct bootp_hdr {
36	u8		bp_op;		/* Operation			*/
37# define OP_BOOTREQUEST	1
38# define OP_BOOTREPLY	2
39	u8		bp_htype;	/* Hardware type		*/
40# define HWT_ETHER	1
41	u8		bp_hlen;	/* Hardware address length	*/
42# define HWL_ETHER	6
43	u8		bp_hops;	/* Hop count (gateway thing)	*/
44	u32		bp_id;		/* Transaction ID		*/
45	u16		bp_secs;	/* Seconds since boot		*/
46	u16		bp_spare1;	/* Alignment			*/
47	struct in_addr	bp_ciaddr;	/* Client IP address		*/
48	struct in_addr	bp_yiaddr;	/* Your (client) IP address	*/
49	struct in_addr	bp_siaddr;	/* Server IP address		*/
50	struct in_addr	bp_giaddr;	/* Gateway IP address		*/
51	u8		bp_chaddr[16];	/* Client hardware address	*/
52	char		bp_sname[64];	/* Server host name		*/
53	char		bp_file[128];	/* Boot file name		*/
54	char		bp_vend[OPT_FIELD_SIZE]; /* Vendor information	*/
55} __attribute__((packed));
56
57#define BOOTP_HDR_SIZE	sizeof(struct bootp_hdr)
58
59/**********************************************************************/
60/*
61 *	Global functions and variables.
62 */
63
64/* bootp.c */
65extern u32	bootp_id;		/* ID of cur BOOTP request	*/
66extern int	bootp_try;
67
68
69/* Send a BOOTP request */
70void bootp_reset(void);
71void bootp_request(void);
72
73/****************** DHCP Support *********************/
74void dhcp_request(void);
75
76/* DHCP States */
77typedef enum { INIT,
78	       INIT_REBOOT,
79	       REBOOTING,
80	       SELECTING,
81	       REQUESTING,
82	       REBINDING,
83	       BOUND,
84	       RENEWING } dhcp_state_t;
85
86#define DHCP_DISCOVER 1
87#define DHCP_OFFER    2
88#define DHCP_REQUEST  3
89#define DHCP_DECLINE  4
90#define DHCP_ACK      5
91#define DHCP_NAK      6
92#define DHCP_RELEASE  7
93
94/**********************************************************************/
95
96#endif /* __BOOTP_H__ */
97