blob: 567340ec5d4a250498c7c8bdf30675552ab5b831 [file] [log] [blame]
wdenkefee1702002-07-20 20:14:13 +00001/*
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__
Joe Hershberger3090b7e32012-05-15 08:59:06 +000013#include <net.h>
wdenkefee1702002-07-20 20:14:13 +000014#endif /* __NET_H__ */
15
16/**********************************************************************/
17
18/*
19 * BOOTP header.
20 */
Jon Loeliger643d1ab2007-07-09 17:45:14 -050021#if defined(CONFIG_CMD_DHCP)
Joe Hershberger3090b7e32012-05-15 08:59:06 +000022/* Minimum DHCP Options size per RFC2131 - results in 576 byte pkt */
Joe Hershbergerf8315732012-05-23 07:58:14 +000023#define OPT_FIELD_SIZE 312
Joe Hershberger3090b7e32012-05-15 08:59:06 +000024#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
wdenkefee1702002-07-20 20:14:13 +000028#else
Joe Hershbergerf8315732012-05-23 07:58:14 +000029#define OPT_FIELD_SIZE 64
wdenkefee1702002-07-20 20:14:13 +000030#endif
31
Joe Hershberger7044c6b2015-04-08 01:41:09 -050032struct bootp_hdr {
Sergey Temerkhanov717234e2015-04-08 01:41:23 -050033 u8 bp_op; /* Operation */
wdenkefee1702002-07-20 20:14:13 +000034# define OP_BOOTREQUEST 1
35# define OP_BOOTREPLY 2
Sergey Temerkhanov717234e2015-04-08 01:41:23 -050036 u8 bp_htype; /* Hardware type */
wdenkefee1702002-07-20 20:14:13 +000037# define HWT_ETHER 1
Sergey Temerkhanov717234e2015-04-08 01:41:23 -050038 u8 bp_hlen; /* Hardware address length */
wdenkefee1702002-07-20 20:14:13 +000039# define HWL_ETHER 6
Sergey Temerkhanov717234e2015-04-08 01:41:23 -050040 u8 bp_hops; /* Hop count (gateway thing) */
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -050041 u32 bp_id; /* Transaction ID */
Sergey Temerkhanov717234e2015-04-08 01:41:23 -050042 u16 bp_secs; /* Seconds since boot */
43 u16 bp_spare1; /* Alignment */
Joe Hershberger049a95a2015-04-08 01:41:01 -050044 struct in_addr bp_ciaddr; /* Client IP address */
45 struct in_addr bp_yiaddr; /* Your (client) IP address */
46 struct in_addr bp_siaddr; /* Server IP address */
47 struct in_addr bp_giaddr; /* Gateway IP address */
Sergey Temerkhanov717234e2015-04-08 01:41:23 -050048 u8 bp_chaddr[16]; /* Client hardware address */
Joe Hershberger3090b7e32012-05-15 08:59:06 +000049 char bp_sname[64]; /* Server host name */
50 char bp_file[128]; /* Boot file name */
Joe Hershbergerf8315732012-05-23 07:58:14 +000051 char bp_vend[OPT_FIELD_SIZE]; /* Vendor information */
Denis Pynkin704f3ac2017-07-21 19:28:42 +030052} __attribute__((packed));
wdenkefee1702002-07-20 20:14:13 +000053
Joe Hershberger7044c6b2015-04-08 01:41:09 -050054#define BOOTP_HDR_SIZE sizeof(struct bootp_hdr)
wdenkefee1702002-07-20 20:14:13 +000055
56/**********************************************************************/
57/*
58 * Global functions and variables.
59 */
60
61/* bootp.c */
Sergey Temerkhanov5917e7d2015-04-08 01:41:22 -050062extern u32 bootp_id; /* ID of cur BOOTP request */
Joe Hershberger7044c6b2015-04-08 01:41:09 -050063extern int bootp_try;
wdenkefee1702002-07-20 20:14:13 +000064
65
66/* Send a BOOTP request */
Joe Hershberger7044c6b2015-04-08 01:41:09 -050067void bootp_reset(void);
68void bootp_request(void);
wdenkefee1702002-07-20 20:14:13 +000069
70/****************** DHCP Support *********************/
Joe Hershberger7044c6b2015-04-08 01:41:09 -050071void dhcp_request(void);
wdenkefee1702002-07-20 20:14:13 +000072
73/* DHCP States */
74typedef enum { INIT,
75 INIT_REBOOT,
76 REBOOTING,
77 SELECTING,
78 REQUESTING,
79 REBINDING,
80 BOUND,
81 RENEWING } dhcp_state_t;
82
83#define DHCP_DISCOVER 1
84#define DHCP_OFFER 2
85#define DHCP_REQUEST 3
86#define DHCP_DECLINE 4
87#define DHCP_ACK 5
88#define DHCP_NAK 6
89#define DHCP_RELEASE 7
90
wdenkefee1702002-07-20 20:14:13 +000091/**********************************************************************/
92
93#endif /* __BOOTP_H__ */