icmp6_nodeinfo.h revision 313379eb6b9da55f7371adef39a92153a0707d4a
1/*
2 * Copyright (C) 2002 USAGI/WIDE Project.
3 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the project nor the names of its contributors
15 *    may be used to endorse or promote products derived from this software
16 *    without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#ifndef ICMP6_NODEINFO_H
32#define ICMP6_NODEINFO_H
33
34struct icmp6_nodeinfo {
35	struct icmp6_hdr	icmp6_ni_hdr;
36	uint8_t			icmp6_ni_nonce[8];
37	/* could be followed by reply data */
38};
39
40#define ni_type		icmp6_ni_hdr.icmp6_type
41#define ni_code		icmp6_ni_hdr.icmp6_code
42#define ni_cksum	icmp6_ni_hdr.icmp6_cksum
43#define ni_qtype	icmp6_ni_hdr.icmp6_data16[0]
44#define ni_flags	icmp6_ni_hdr.icmp6_data16[1]
45#define ni_nonce	icmp6_ni_nonce
46
47/* ICMP6 types */
48#define ICMP6_NI_QUERY			139
49#define ICMP6_NI_REPLY			140
50
51/* ICMP6 codes for NI Query */
52#define ICMP6_NI_SUBJ_IPV6		0	/* Query Subject is an ipv6 address */
53#define ICMP6_NI_SUBJ_FQDN		1	/* Query Subject is a Domain name */
54#define ICMP6_NI_SUBJ_IPV4		2	/* Query Subject is an ipv4 address */
55
56/* ICMP6 codes for NI Reply */
57#define ICMP6_NI_SUCCESS		0	/* NI successful reply */
58#define ICMP6_NI_REFUSED		1	/* NI request is refused */
59#define ICMP6_NI_UNKNOWN		2	/* unknown Qtype */
60
61/* NI Codes */
62#define NI_QTYPE_NOOP			0	/* NOOP  */
63#define NI_QTYPE_SUPTYPES		1	/* Supported Qtypes */
64#define NI_QTYPE_DNSNAME		2	/* DNS Name */
65#define NI_QTYPE_NODEADDR		3	/* Node Addresses */
66#define NI_QTYPE_IPV4ADDR		4	/* IPv4 Addresses */
67
68/* NI Flags */
69#if WORDS_BIGENDIAN
70#define NI_SUPTYPE_FLAG_COMPRESS	0x1
71#define NI_FQDN_FLAG_VALIDTTL		0x1
72#else
73#define NI_SUPTYPE_FLAG_COMPRESS	0x0100
74#define NI_FQDN_FLAG_VALIDTTL		0x0100
75#endif
76
77#if WORDS_BIGENDIAN
78#define NI_NODEADDR_FLAG_TRUNCATE	0x1
79#define NI_NODEADDR_FLAG_ALL		0x2
80#define NI_NODEADDR_FLAG_COMPAT		0x4
81#define NI_NODEADDR_FLAG_LINKLOCAL	0x8
82#define NI_NODEADDR_FLAG_SITELOCAL	0x10
83#define NI_NODEADDR_FLAG_GLOBAL		0x20
84#else
85#define NI_NODEADDR_FLAG_TRUNCATE	0x0100
86#define NI_NODEADDR_FLAG_ALL		0x0200
87#define NI_NODEADDR_FLAG_COMPAT		0x0400
88#define NI_NODEADDR_FLAG_LINKLOCAL	0x0800
89#define NI_NODEADDR_FLAG_SITELOCAL	0x1000
90#define NI_NODEADDR_FLAG_GLOBAL		0x2000
91#endif
92
93#define NI_IPV4ADDR_FLAG_TRUNCATE	NI_NODEADDR_FLAG_TRUNCATE
94#define NI_IPV4ADDR_FLAG_ALL		NI_NODEADDR_FLAG_ALL
95
96#endif
97
98