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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__
3090b7e3 13#include <net.h>
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14#endif /* __NET_H__ */
15
16/**********************************************************************/
17
18/*
19 * BOOTP header.
20 */
643d1ab2 21#if defined(CONFIG_CMD_DHCP)
3090b7e3 22/* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
f8315731 23#define OPT_FIELD_SIZE 312
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24#if defined(CONFIG_BOOTP_VENDOREX)
25extern u8 *dhcp_vendorex_prep(u8 *e); /*rtn new e after add own opts. */
26extern u8 *dhcp_vendorex_proc(u8 *e); /*rtn next e if mine,else NULL */
27#endif
efee1709 28#else
f8315731 29#define OPT_FIELD_SIZE 64
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30#endif
31
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32struct Bootp_t {
33 uchar bp_op; /* Operation */
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34# define OP_BOOTREQUEST 1
35# define OP_BOOTREPLY 2
3090b7e3 36 uchar bp_htype; /* Hardware type */
efee1709 37# define HWT_ETHER 1
3090b7e3 38 uchar bp_hlen; /* Hardware address length */
efee1709 39# define HWL_ETHER 6
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40 uchar bp_hops; /* Hop count (gateway thing) */
41 ulong bp_id; /* Transaction ID */
42 ushort bp_secs; /* Seconds since boot */
43 ushort bp_spare1; /* Alignment */
44 IPaddr_t bp_ciaddr; /* Client IP address */
45 IPaddr_t bp_yiaddr; /* Your (client) IP address */
46 IPaddr_t bp_siaddr; /* Server IP address */
47 IPaddr_t bp_giaddr; /* Gateway IP address */
48 uchar bp_chaddr[16]; /* Client hardware address */
49 char bp_sname[64]; /* Server host name */
50 char bp_file[128]; /* Boot file name */
f8315731 51 char bp_vend[OPT_FIELD_SIZE]; /* Vendor information */
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52};
53
54#define BOOTP_HDR_SIZE sizeof(struct Bootp_t)
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55
56/**********************************************************************/
57/*
58 * Global functions and variables.
59 */
60
61/* bootp.c */
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62extern ulong BootpID; /* ID of cur BOOTP request */
63extern char BootFile[128]; /* Boot file name */
efee1709 64extern int BootpTry;
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65
66
67/* Send a BOOTP request */
f59be6e8 68extern void BootpReset(void);
3090b7e3 69extern void BootpRequest(void);
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70
71/****************** DHCP Support *********************/
72extern void DhcpRequest(void);
73
74/* DHCP States */
75typedef enum { INIT,
76 INIT_REBOOT,
77 REBOOTING,
78 SELECTING,
79 REQUESTING,
80 REBINDING,
81 BOUND,
82 RENEWING } dhcp_state_t;
83
84#define DHCP_DISCOVER 1
85#define DHCP_OFFER 2
86#define DHCP_REQUEST 3
87#define DHCP_DECLINE 4
88#define DHCP_ACK 5
89#define DHCP_NAK 6
90#define DHCP_RELEASE 7
91
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92/**********************************************************************/
93
94#endif /* __BOOTP_H__ */