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Merge tag 'tpm-master-27052024' of https://source.denx.de/u-boot/custodians/u-boot-tpm
[thirdparty/u-boot.git] / net / bootp.h
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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
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18#define PORT_BOOTPS 67 /* BOOTP server UDP port */
19#define PORT_BOOTPC 68 /* BOOTP client UDP port */
20
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21/*
22 * BOOTP header.
23 */
643d1ab2 24#if defined(CONFIG_CMD_DHCP)
3090b7e3 25/* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
f8315731 26#define OPT_FIELD_SIZE 312
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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
efee1709 31#else
f8315731 32#define OPT_FIELD_SIZE 64
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33#endif
34
7044c6bb 35struct bootp_hdr {
717234e0 36 u8 bp_op; /* Operation */
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37# define OP_BOOTREQUEST 1
38# define OP_BOOTREPLY 2
717234e0 39 u8 bp_htype; /* Hardware type */
efee1709 40# define HWT_ETHER 1
717234e0 41 u8 bp_hlen; /* Hardware address length */
efee1709 42# define HWL_ETHER 6
717234e0 43 u8 bp_hops; /* Hop count (gateway thing) */
5917e7d1 44 u32 bp_id; /* Transaction ID */
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45 u16 bp_secs; /* Seconds since boot */
46 u16 bp_spare1; /* Alignment */
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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 */
717234e0 51 u8 bp_chaddr[16]; /* Client hardware address */
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52 char bp_sname[64]; /* Server host name */
53 char bp_file[128]; /* Boot file name */
f8315731 54 char bp_vend[OPT_FIELD_SIZE]; /* Vendor information */
704f3acf 55} __attribute__((packed));
3090b7e3 56
7044c6bb 57#define BOOTP_HDR_SIZE sizeof(struct bootp_hdr)
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58
59/**********************************************************************/
60/*
61 * Global functions and variables.
62 */
63
64/* bootp.c */
5917e7d1 65extern u32 bootp_id; /* ID of cur BOOTP request */
7044c6bb 66extern int bootp_try;
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67
68
69/* Send a BOOTP request */
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70void bootp_reset(void);
71void bootp_request(void);
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72
73/****************** DHCP Support *********************/
7044c6bb 74void dhcp_request(void);
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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
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94/**********************************************************************/
95
96#endif /* __BOOTP_H__ */