Import of TCPDUMP 3.9.5
[dragonfly.git] / contrib / tcpdump-3.9 / ospf.h
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1/* @(#) $Header: /tcpdump/master/tcpdump/ospf.h,v 1.16.2.1 2005/08/23 11:16:30 hannes Exp $ (LBL) */
2/*
3 * Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997
4 * The Regents of the University of California. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that: (1) source code distributions
8 * retain the above copyright notice and this paragraph in its entirety, (2)
9 * distributions including binary code include the above copyright notice and
10 * this paragraph in its entirety in the documentation or other materials
11 * provided with the distribution, and (3) all advertising materials mentioning
12 * features or use of this software display the following acknowledgement:
13 * ``This product includes software developed by the University of California,
14 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
15 * the University nor the names of its contributors may be used to endorse
16 * or promote products derived from this software without specific prior
17 * written permission.
18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
19 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21 *
22 * OSPF support contributed by Jeffrey Honig (jch@mitchell.cit.cornell.edu)
23 */
24#define OSPF_TYPE_UMD 0 /* UMd's special monitoring packets */
25#define OSPF_TYPE_HELLO 1 /* Hello */
26#define OSPF_TYPE_DD 2 /* Database Description */
27#define OSPF_TYPE_LS_REQ 3 /* Link State Request */
28#define OSPF_TYPE_LS_UPDATE 4 /* Link State Update */
29#define OSPF_TYPE_LS_ACK 5 /* Link State Ack */
30
31/* Options field
32 *
33 * +------------------------------------+
34 * | * | O | DC | EA | N/P | MC | E | T |
35 * +------------------------------------+
36 *
37 */
38
39#define OSPF_OPTION_T 0x01 /* T bit: TOS support */
40#define OSPF_OPTION_E 0x02 /* E bit: External routes advertised */
41#define OSPF_OPTION_MC 0x04 /* MC bit: Multicast capable */
42#define OSPF_OPTION_NP 0x08 /* N/P bit: NSSA capable */
43#define OSPF_OPTION_EA 0x10 /* EA bit: External Attribute capable */
44#define OSPF_OPTION_DC 0x20 /* DC bit: Demand circuit capable */
45#define OSPF_OPTION_O 0x40 /* O bit: Opaque LSA capable */
46#define OSPF_OPTION_DN 0x80 /* DN bit: Up/Down Bit capable - draft-ietf-ospf-2547-dnbit-04 */
47
48/* ospf_authtype */
49#define OSPF_AUTH_NONE 0 /* No auth-data */
50#define OSPF_AUTH_SIMPLE 1 /* Simple password */
51#define OSPF_AUTH_MD5 2 /* MD5 authentication */
52#define OSPF_AUTH_MD5_LEN 16 /* length of MD5 authentication */
53
54/* db_flags */
55#define OSPF_DB_INIT 0x04 /* */
56#define OSPF_DB_MORE 0x02
57#define OSPF_DB_MASTER 0x01
58
59/* ls_type */
60#define LS_TYPE_ROUTER 1 /* router link */
61#define LS_TYPE_NETWORK 2 /* network link */
62#define LS_TYPE_SUM_IP 3 /* summary link */
63#define LS_TYPE_SUM_ABR 4 /* summary area link */
64#define LS_TYPE_ASE 5 /* ASE */
65#define LS_TYPE_GROUP 6 /* Group membership (multicast */
66 /* extensions 23 July 1991) */
67#define LS_TYPE_NSSA 7 /* rfc3101 - Not so Stubby Areas */
68#define LS_TYPE_OPAQUE_LL 9 /* rfc2370 - Opaque Link Local */
69#define LS_TYPE_OPAQUE_AL 10 /* rfc2370 - Opaque Link Local */
70#define LS_TYPE_OPAQUE_DW 11 /* rfc2370 - Opaque Domain Wide */
71
72#define LS_OPAQUE_TYPE_TE 1 /* rfc3630 */
73#define LS_OPAQUE_TYPE_GRACE 3 /* rfc3623 */
74#define LS_OPAQUE_TYPE_RI 4 /* draft-ietf-ospf-cap-03 */
75
76#define LS_OPAQUE_TE_TLV_ROUTER 1 /* rfc3630 */
77#define LS_OPAQUE_TE_TLV_LINK 2 /* rfc3630 */
78
79#define LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE 1 /* rfc3630 */
80#define LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID 2 /* rfc3630 */
81#define LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP 3 /* rfc3630 */
82#define LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP 4 /* rfc3630 */
83#define LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC 5 /* rfc3630 */
84#define LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW 6 /* rfc3630 */
85#define LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW 7 /* rfc3630 */
86#define LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW 8 /* rfc3630 */
87#define LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP 9 /* rfc3630 */
88#define LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID 11 /* draft-ietf-ccamp-ospf-gmpls-extensions */
89#define LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE 14 /* draft-ietf-ccamp-ospf-gmpls-extensions */
90#define LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR 15 /* draft-ietf-ccamp-ospf-gmpls-extensions */
91#define LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP 16 /* draft-ietf-ccamp-ospf-gmpls-extensions */
92#define LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS 17 /* rfc4124 */
93
94#define LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_PTP 1 /* rfc3630 */
95#define LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_MA 2 /* rfc3630 */
96
97#define LS_OPAQUE_GRACE_TLV_PERIOD 1 /* rfc3623 */
98#define LS_OPAQUE_GRACE_TLV_REASON 2 /* rfc3623 */
99#define LS_OPAQUE_GRACE_TLV_INT_ADDRESS 3 /* rfc3623 */
100
101#define LS_OPAQUE_GRACE_TLV_REASON_UNKNOWN 0 /* rfc3623 */
102#define LS_OPAQUE_GRACE_TLV_REASON_SW_RESTART 1 /* rfc3623 */
103#define LS_OPAQUE_GRACE_TLV_REASON_SW_UPGRADE 2 /* rfc3623 */
104#define LS_OPAQUE_GRACE_TLV_REASON_CP_SWITCH 3 /* rfc3623 */
105
106#define LS_OPAQUE_RI_TLV_CAP 1 /* draft-ietf-ospf-cap-03 */
107
108/*************************************************
109 *
110 * is the above a bug in the documentation?
111 *
112 *************************************************/
113
114
115/* rla_link.link_type */
116#define RLA_TYPE_ROUTER 1 /* point-to-point to another router */
117#define RLA_TYPE_TRANSIT 2 /* connection to transit network */
118#define RLA_TYPE_STUB 3 /* connection to stub network */
119#define RLA_TYPE_VIRTUAL 4 /* virtual link */
120
121/* rla_flags */
122#define RLA_FLAG_B 0x01
123#define RLA_FLAG_E 0x02
124#define RLA_FLAG_W1 0x04
125#define RLA_FLAG_W2 0x08
126
127/* sla_tosmetric breakdown */
128#define SLA_MASK_TOS 0x7f000000
129#define SLA_MASK_METRIC 0x00ffffff
130#define SLA_SHIFT_TOS 24
131
132/* asla_tosmetric breakdown */
133#define ASLA_FLAG_EXTERNAL 0x80000000
134#define ASLA_MASK_TOS 0x7f000000
135#define ASLA_SHIFT_TOS 24
136#define ASLA_MASK_METRIC 0x00ffffff
137
138/* multicast vertex type */
139#define MCLA_VERTEX_ROUTER 1
140#define MCLA_VERTEX_NETWORK 2
141
142/* link state advertisement header */
143struct lsa_hdr {
144 u_int16_t ls_age;
145 u_int8_t ls_options;
146 u_int8_t ls_type;
147 union {
148 struct in_addr lsa_id;
149 struct { /* opaque LSAs change the LSA-ID field */
150 u_int8_t opaque_type;
151 u_int8_t opaque_id[3];
152 } opaque_field;
153 } un_lsa_id;
154 struct in_addr ls_router;
155 u_int32_t ls_seq;
156 u_int16_t ls_chksum;
157 u_int16_t ls_length;
158};
159
160/* link state advertisement */
161struct lsa {
162 struct lsa_hdr ls_hdr;
163
164 /* Link state types */
165 union {
166 /* Router links advertisements */
167 struct {
168 u_int8_t rla_flags;
169 u_int8_t rla_zero[1];
170 u_int16_t rla_count;
171 struct rlalink {
172 struct in_addr link_id;
173 struct in_addr link_data;
174 u_int8_t link_type;
175 u_int8_t link_toscount;
176 u_int16_t link_tos0metric;
177 } rla_link[1]; /* may repeat */
178 } un_rla;
179
180 /* Network links advertisements */
181 struct {
182 struct in_addr nla_mask;
183 struct in_addr nla_router[1]; /* may repeat */
184 } un_nla;
185
186 /* Summary links advertisements */
187 struct {
188 struct in_addr sla_mask;
189 u_int32_t sla_tosmetric[1]; /* may repeat */
190 } un_sla;
191
192 /* AS external links advertisements */
193 struct {
194 struct in_addr asla_mask;
195 struct aslametric {
196 u_int32_t asla_tosmetric;
197 struct in_addr asla_forward;
198 struct in_addr asla_tag;
199 } asla_metric[1]; /* may repeat */
200 } un_asla;
201
202 /* Multicast group membership */
203 struct mcla {
204 u_int32_t mcla_vtype;
205 struct in_addr mcla_vid;
206 } un_mcla[1];
207
208 /* Opaque TE LSA */
209 struct {
210 u_int16_t type;
211 u_int16_t length;
212 u_int8_t data[1]; /* may repeat */
213 } un_te_lsa_tlv;
214
215 /* Opaque Grace LSA */
216 struct {
217 u_int16_t type;
218 u_int16_t length;
219 u_int8_t data[1]; /* may repeat */
220 } un_grace_tlv;
221
222 /* Opaque Router information LSA */
223 struct {
224 u_int16_t type;
225 u_int16_t length;
226 u_int8_t data[1]; /* may repeat */
227 } un_ri_tlv;
228
229 /* Unknown LSA */
230 struct unknown {
231 u_int8_t data[1]; /* may repeat */
232 } un_unknown[1];
233
234 } lsa_un;
235};
236
237
238/*
239 * TOS metric struct (will be 0 or more in router links update)
240 */
241struct tos_metric {
242 u_int8_t tos_type;
243 u_int8_t tos_zero;
244 u_int16_t tos_metric;
245};
246
247#define OSPF_AUTH_SIZE 8
248
249/*
250 * the main header
251 */
252struct ospfhdr {
253 u_int8_t ospf_version;
254 u_int8_t ospf_type;
255 u_int16_t ospf_len;
256 struct in_addr ospf_routerid;
257 struct in_addr ospf_areaid;
258 u_int16_t ospf_chksum;
259 u_int16_t ospf_authtype;
260 u_int8_t ospf_authdata[OSPF_AUTH_SIZE];
261 union {
262
263 /* Hello packet */
264 struct {
265 struct in_addr hello_mask;
266 u_int16_t hello_helloint;
267 u_int8_t hello_options;
268 u_int8_t hello_priority;
269 u_int32_t hello_deadint;
270 struct in_addr hello_dr;
271 struct in_addr hello_bdr;
272 struct in_addr hello_neighbor[1]; /* may repeat */
273 } un_hello;
274
275 /* Database Description packet */
276 struct {
277 u_int8_t db_zero[2];
278 u_int8_t db_options;
279 u_int8_t db_flags;
280 u_int32_t db_seq;
281 struct lsa_hdr db_lshdr[1]; /* may repeat */
282 } un_db;
283
284 /* Link State Request */
285 struct lsr {
286 u_int8_t ls_type[4];
287 union {
288 struct in_addr ls_stateid;
289 struct { /* opaque LSAs change the LSA-ID field */
290 u_int8_t opaque_type;
291 u_int8_t opaque_id[3];
292 } opaque_field;
293 } un_ls_stateid;
294 struct in_addr ls_router;
295 } un_lsr[1]; /* may repeat */
296
297 /* Link State Update */
298 struct {
299 u_int32_t lsu_count;
300 struct lsa lsu_lsa[1]; /* may repeat */
301 } un_lsu;
302
303 /* Link State Acknowledgement */
304 struct {
305 struct lsa_hdr lsa_lshdr[1]; /* may repeat */
306 } un_lsa ;
307 } ospf_un ;
308};
309
310#define ospf_hello ospf_un.un_hello
311#define ospf_db ospf_un.un_db
312#define ospf_lsr ospf_un.un_lsr
313#define ospf_lsu ospf_un.un_lsu
314#define ospf_lsa ospf_un.un_lsa
315