aboutsummaryrefslogtreecommitdiff
path: root/stand/libsa/bootp.h
blob: fd99b775f14c18a8ac49d32ac0c37a63aecceefb (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
/*	$NetBSD: bootp.h,v 1.4 1997/09/06 13:55:57 drochner Exp $	*/

/*
 * Bootstrap Protocol (BOOTP).  RFC951 and RFC1048.
 *
 * This file specifies the "implementation-independent" BOOTP protocol
 * information which is common to both client and server.
 *
 * Copyright 1988 by Carnegie Mellon.
 *
 * Permission to use, copy, modify, and distribute this program for any
 * purpose and without fee is hereby granted, provided that this copyright
 * and permission notice appear on all copies and supporting documentation,
 * the name of Carnegie Mellon not be used in advertising or publicity
 * pertaining to distribution of the program without specific prior
 * permission, and notice be given in supporting documentation that copying
 * and distribution is by permission of Carnegie Mellon and Stanford
 * University.  Carnegie Mellon makes no representations about the
 * suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 * $FreeBSD$
 */

#ifndef _BOOTP_H_
#define _BOOTP_H_

struct bootp {
	unsigned char	bp_op;		/* packet opcode type */
	unsigned char	bp_htype;	/* hardware addr type */
	unsigned char	bp_hlen;	/* hardware addr length */
	unsigned char	bp_hops;	/* gateway hops */
	unsigned int	bp_xid;		/* transaction ID */
	unsigned short	bp_secs;	/* seconds since boot began */
	unsigned short	bp_flags;
	struct in_addr	bp_ciaddr;	/* client IP address */
	struct in_addr	bp_yiaddr;	/* 'your' IP address */
	struct in_addr	bp_siaddr;	/* server IP address */
	struct in_addr	bp_giaddr;	/* gateway IP address */
	unsigned char	bp_chaddr[16];	/* client hardware address */
	unsigned char	bp_sname[64];	/* server host name */
	unsigned char	bp_file[128];	/* boot file name */
#ifdef SUPPORT_DHCP
#define BOOTP_VENDSIZE 312
#else
#define BOOTP_VENDSIZE 64
#endif
	unsigned char	bp_vend[BOOTP_VENDSIZE];	/* vendor-specific area */
};

/*
 * UDP port numbers, server and client.
 */
#define	IPPORT_BOOTPS		67
#define	IPPORT_BOOTPC		68

#define BOOTREPLY		2
#define BOOTREQUEST		1


/*
 * Vendor magic cookie (v_magic) for CMU
 */
#define VM_CMU		"CMU"

/*
 * Vendor magic cookie (v_magic) for RFC1048
 */
#define VM_RFC1048	{ 99, 130, 83, 99 }



/*
 * RFC1048 tag values used to specify what information is being supplied in
 * the vendor field of the packet.
 */

#define TAG_PAD			((unsigned char)   0)
#define TAG_SUBNET_MASK		((unsigned char)   1)
#define TAG_TIME_OFFSET		((unsigned char)   2)
#define TAG_GATEWAY		((unsigned char)   3)
#define TAG_TIME_SERVER		((unsigned char)   4)
#define TAG_NAME_SERVER		((unsigned char)   5)
#define TAG_DOMAIN_SERVER	((unsigned char)   6)
#define TAG_LOG_SERVER		((unsigned char)   7)
#define TAG_COOKIE_SERVER	((unsigned char)   8)
#define TAG_LPR_SERVER		((unsigned char)   9)
#define TAG_IMPRESS_SERVER	((unsigned char)  10)
#define TAG_RLP_SERVER		((unsigned char)  11)
#define TAG_HOSTNAME		((unsigned char)  12)
#define TAG_BOOTSIZE		((unsigned char)  13)
#define TAG_DUMPFILE		((unsigned char)  14)
#define TAG_DOMAINNAME		((unsigned char)  15)
#define TAG_SWAPSERVER		((unsigned char)  16)
#define TAG_ROOTPATH		((unsigned char)  17)
#define TAG_INTF_MTU		((unsigned char)  26)

#ifdef SUPPORT_DHCP
#define TAG_REQ_ADDR		((unsigned char)  50)
#define TAG_LEASETIME		((unsigned char)  51)
#define TAG_OVERLOAD		((unsigned char)  52)
#define TAG_DHCP_MSGTYPE	((unsigned char)  53)
#define TAG_SERVERID		((unsigned char)  54)
#define TAG_PARAM_REQ		((unsigned char)  55)
#define TAG_MSG			((unsigned char)  56)
#define TAG_MAXSIZE		((unsigned char)  57)
#define TAG_T1			((unsigned char)  58)
#define TAG_T2			((unsigned char)  59)
#define TAG_CLASSID		((unsigned char)  60)
#define TAG_CLIENTID		((unsigned char)  61)
#define TAG_USER_CLASS		((unsigned char)  77)
#endif

#define TAG_END			((unsigned char) 255)

#ifdef SUPPORT_DHCP
#define DHCPDISCOVER 1
#define DHCPOFFER 2
#define DHCPREQUEST 3
#define DHCPDECLINE 4
#define DHCPACK 5
#define DHCPNAK 6
#define DHCPRELEASE 7
#endif

/*
 * "vendor" data permitted for CMU bootp clients.
 */

struct cmu_vend {
	unsigned char	v_magic[4];	/* magic number */
	unsigned int	v_flags;	/* flags/opcodes, etc. */
	struct in_addr	v_smask;	/* Subnet mask */
	struct in_addr	v_dgate;	/* Default gateway */
	struct in_addr	v_dns1, v_dns2; /* Domain name servers */
	struct in_addr	v_ins1, v_ins2; /* IEN-116 name servers */
	struct in_addr	v_ts1, v_ts2;	/* Time servers */
	unsigned char	v_unused[25];	/* currently unused */
};


/* v_flags values */
#define VF_SMASK	1	/* Subnet mask field contains valid data */

/* cached bootp response/dhcp ack */
extern struct bootp *bootp_response;
extern size_t bootp_response_size;

#endif /* _BOOTP_H_ */