1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef _OSPF6_H
28#define	_OSPF6_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32/*
33 * Definitions for parsing OSPF packets (RFC 2328)
34 */
35
36#ifdef __cplusplus
37extern "C" {
38#endif
39
40struct lsa6_hdr {
41	uint16_t ls6_age;
42	uint16_t ls6_type;
43	uint32_t ls6_stateid;
44	uint32_t ls6_router;
45	uint32_t ls6_seq;
46	uint16_t ls6_chksum;
47	uint16_t ls6_length;
48};
49
50struct lsa6_prefix {
51	uint8_t  lsa6_plen;
52	uint8_t  lsa6_popt;
53	uint16_t lsa6_pmbz;
54	uint8_t  lsa6_pfx[4];
55};
56
57/* link state advertisement */
58struct lsa6 {
59	struct lsa6_hdr ls6_hdr;
60
61	/* Link state types */
62	union {
63		/* Router links advertisements */
64		struct {
65			union {
66				uint8_t  rla_flg;
67				uint32_t rla_opt;
68			} un_rla_flgopt;
69#define	rla6_flags	un_rla_flgopt.rla_flg
70#define	rla6_options	un_rla_flgopt.rla_opt
71			struct rla6link {
72				uint8_t link_type;
73				uint8_t link_zero[1];
74				uint16_t link_metric;
75				uint32_t link_ifid;
76				uint32_t link_nifid;
77				uint32_t link_nrtid;
78			} rla_link[1];		/* may repeat	*/
79		} un_rla;
80
81		/* Network links advertisements */
82		struct {
83			uint32_t nla_options;
84			uint32_t nla_router[1];	/* may repeat	*/
85		} un_nla;
86
87		/* Inter Area Prefix LSA */
88		struct {
89			uint32_t inter_ap_metric;
90			struct lsa6_prefix inter_ap_prefix[1];
91		} un_inter_ap;
92
93		/* Link LSA */
94		struct llsa {
95			union {
96				uint8_t pri;
97				uint32_t opt;
98			} llsa_priandopt;
99#define	llsa_priority	llsa_priandopt.pri
100#define	llsa_options	llsa_priandopt.opt
101			struct in6_addr llsa_lladdr;
102			uint32_t llsa_nprefix;
103			struct lsa6_prefix llsa_prefix[1];
104		} un_llsa;
105
106		/* Intra-Area-Prefix */
107		struct {
108			uint16_t intra_ap_nprefix;
109			uint16_t intra_ap_lstype;
110			uint32_t intra_ap_lsid;
111			uint32_t intra_ap_rtid;
112			struct lsa6_prefix intra_ap_prefix[1];
113		} un_intra_ap;
114	} lsa_un;
115};
116
117struct ospf6hdr {
118	uint8_t ospf6_version;
119	uint8_t ospf6_type;
120	uint16_t ospf6_len;
121	uint32_t ospf6_routerid;
122	uint32_t ospf6_areaid;
123	uint16_t ospf6_chksum;
124	uint8_t ospf6_instanceid;
125	uint8_t ospf6_rsvd;
126	union {
127
128		/* Hello packet */
129		struct {
130			uint32_t hello_ifid;
131			union {
132				uint8_t pri;
133				uint32_t opt;
134			} hello_priandopt;
135#define	hello6_priority	hello_priandopt.pri
136#define	hello6_options	hello_priandopt.opt
137			uint16_t hello_helloint;
138			uint16_t hello_deadint;
139			uint32_t hello_dr;
140			uint32_t hello_bdr;
141			uint32_t hello_neighbor[1];	/* may repeat	*/
142		} un_hello;
143
144		/* Database Description packet */
145		struct {
146			uint32_t db_options;
147			uint16_t db_mtu;
148			uint8_t db_mbz;
149			uint8_t db_flags;
150			uint32_t db_seq;
151			struct lsa6_hdr db_lshdr[1];	/* may repeat	*/
152		} un_db;
153
154		/* Link State Request */
155		struct lsr6 {
156			uint16_t ls_mbz;
157			uint16_t ls_type;
158			uint32_t ls_stateid;
159			uint32_t ls_router;
160		} un_lsr[1];				/* may repeat	*/
161
162		/* Link State Update */
163		struct {
164			uint32_t lsu_count;
165			struct lsa6 lsu_lsa[1]; 	/* may repeat	*/
166		} un_lsu;
167
168		/* Link State Acknowledgement */
169		struct {
170			struct lsa6_hdr lsa_lshdr[1]; 	/* may repeat	*/
171		} un_lsa;
172	} ospf6_un;
173};
174
175#define	ospf6_hello	ospf6_un.un_hello
176#define	ospf6_db	ospf6_un.un_db
177#define	ospf6_lsr	ospf6_un.un_lsr
178#define	ospf6_lsu	ospf6_un.un_lsu
179#define	ospf6_lsa	ospf6_un.un_lsa
180
181#ifdef __cplusplus
182}
183#endif
184
185#endif /* _OSPF6_H */
186