1 /* $OpenBSD: bootp.h,v 1.5 2003/08/11 06:23:09 deraadt Exp $ */
2 /* $NetBSD: bootp.h,v 1.3 1996/09/26 23:22:01 cgd Exp $ */
3
4 /*
5 * Bootstrap Protocol (BOOTP). RFC951 and RFC1048.
6 *
7 * This file specifies the "implementation-independent" BOOTP protocol
8 * information which is common to both client and server.
9 *
10 * Copyright 1988 by Carnegie Mellon.
11 *
12 * Permission to use, copy, modify, and distribute this program for any
13 * purpose and without fee is hereby granted, provided that this copyright
14 * and permission notice appear on all copies and supporting documentation,
15 * the name of Carnegie Mellon not be used in advertising or publicity
16 * pertaining to distribution of the program without specific prior
17 * permission, and notice be given in supporting documentation that copying
18 * and distribution is by permission of Carnegie Mellon and Stanford
19 * University. Carnegie Mellon makes no representations about the
20 * suitability of this software for any purpose. It is provided "as is"
21 * without express or implied warranty.
22 */
23
24 #define BP_CHADDR_LEN 16
25 #define BP_SNAME_LEN 64
26 #define BP_FILE_LEN 128
27 #define BP_VEND_LEN 64
28 #define BP_MINPKTSZ 300 /* to check sizeof(struct bootp) */
29
30
31 struct bootp {
32 u_char bp_op; /* packet opcode type */
33 u_char bp_htype; /* hardware addr type */
34 u_char bp_hlen; /* hardware addr length */
35 u_char bp_hops; /* gateway hops */
36 u_int bp_xid; /* transaction ID */
37 u_short bp_secs; /* seconds since boot began */
38 u_short bp_flags; /* RFC1532 broadcast, etc. */
39 struct in_addr bp_ciaddr; /* client IP address */
40 struct in_addr bp_yiaddr; /* 'your' IP address */
41 struct in_addr bp_siaddr; /* server IP address */
42 struct in_addr bp_giaddr; /* gateway IP address */
43 u_char bp_chaddr[BP_CHADDR_LEN];/* client hardware address */
44 u_char bp_sname[BP_SNAME_LEN]; /* server host name */
45 u_char bp_file[BP_FILE_LEN]; /* boot file name */
46 u_char bp_vend[BP_VEND_LEN]; /* vendor-specific area */
47 };
48
49 /*
50 * UDP port numbers, server and client.
51 */
52 #define IPPORT_BOOTPS 67
53 #define IPPORT_BOOTPC 68
54
55 #define BOOTREPLY 2
56 #define BOOTREQUEST 1
57
58 /*
59 * Hardware types from Assigned Numbers RFC.
60 */
61 #define HTYPE_ETHERNET 1
62 #define HTYPE_EXP_ETHERNET 2
63 #define HTYPE_AX25 3
64 #define HTYPE_PRONET 4
65 #define HTYPE_CHAOS 5
66 #define HTYPE_IEEE802 6
67 #define HTYPE_ARCNET 7
68
69 /*
70 * Vendor magic cookie (v_magic) for CMU
71 */
72 #define VM_CMU "CMU"
73
74 /*
75 * Vendor magic cookie (v_magic) for RFC1048
76 */
77 #define VM_RFC1048 { 99, 130, 83, 99 }
78
79
80
81 /*
82 * RFC1048 tag values used to specify what information is being supplied in
83 * the vendor field of the packet.
84 */
85
86 #define TAG_PAD ((unsigned char) 0)
87 #define TAG_SUBNET_MASK ((unsigned char) 1)
88 #define TAG_TIME_OFFSET ((unsigned char) 2)
89 #define TAG_GATEWAY ((unsigned char) 3)
90 #define TAG_TIME_SERVER ((unsigned char) 4)
91 #define TAG_NAME_SERVER ((unsigned char) 5)
92 #define TAG_DOMAIN_SERVER ((unsigned char) 6)
93 #define TAG_LOG_SERVER ((unsigned char) 7)
94 #define TAG_COOKIE_SERVER ((unsigned char) 8)
95 #define TAG_LPR_SERVER ((unsigned char) 9)
96 #define TAG_IMPRESS_SERVER ((unsigned char) 10)
97 #define TAG_RLP_SERVER ((unsigned char) 11)
98 #define TAG_HOSTNAME ((unsigned char) 12)
99 #define TAG_BOOTSIZE ((unsigned char) 13)
100 #define TAG_DUMPFILE ((unsigned char) 14)
101 #define TAG_DOMAINNAME ((unsigned char) 15)
102 #define TAG_SWAPSERVER ((unsigned char) 16)
103 #define TAG_ROOTPATH ((unsigned char) 17)
104 #define TAG_EXTEN_FILE ((unsigned char) 18)
105 #define TAG_NIS_DOMAIN ((unsigned char) 40)
106 #define TAG_NIS_SERVER ((unsigned char) 41)
107 #define TAG_NTP_SERVER ((unsigned char) 42)
108 #define TAG_MAX_MSGSZ ((unsigned char) 57)
109 #define TAG_END ((unsigned char) 255)
110
111
112
113 /*
114 * "vendor" data permitted for CMU bootp clients.
115 */
116
117 struct cmu_vend {
118 unsigned char v_magic[4]; /* magic number */
119 unsigned int v_flags; /* flags/opcodes, etc. */
120 struct in_addr v_smask; /* Subnet mask */
121 struct in_addr v_dgate; /* Default gateway */
122 struct in_addr v_dns1, v_dns2; /* Domain name servers */
123 struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */
124 struct in_addr v_ts1, v_ts2; /* Time servers */
125 unsigned char v_unused[25]; /* currently unused */
126 };
127
128 /* v_flags values */
129 #define VF_SMASK 1 /* Subnet mask field contains valid data */
130
131 void bootp(int);