/src/wireshark/epan/dissectors/packet-lisp.c
Line | Count | Source |
1 | | /* packet-lisp.c |
2 | | * Routines for Locator/ID Separation Protocol (LISP) Control Message dissection |
3 | | * Copyright 2011, 2014 Lorand Jakab <ljakab@ac.upc.edu> |
4 | | * |
5 | | * Geo Coordinates LCAF dissection based on previous work by Radu Terciu |
6 | | * |
7 | | * Wireshark - Network traffic analyzer |
8 | | * By Gerald Combs <gerald@wireshark.org> |
9 | | * Copyright 1998 Gerald Combs |
10 | | * |
11 | | * SPDX-License-Identifier: GPL-2.0-or-later |
12 | | */ |
13 | | |
14 | | #include "config.h" |
15 | | #include "packet-lisp.h" |
16 | | |
17 | | #include <epan/to_str.h> |
18 | | #include <epan/oui.h> |
19 | | #include <epan/expert.h> |
20 | | #include <epan/tfs.h> |
21 | | #include <epan/iana-info.h> |
22 | | #include <wsutil/array.h> |
23 | | #include <wsutil/utf8_entities.h> |
24 | | |
25 | | void proto_register_lisp(void); |
26 | | void proto_reg_handoff_lisp(void); |
27 | | |
28 | | /* |
29 | | * See RFC 6830 "Locator/ID Separation Protocol (LISP)", |
30 | | * draft-ietf-lisp-lcaf-05 "LISP Canonical Address Format (LCAF)", |
31 | | * draft-ietf-lisp-vendor-lcaf-07 "Vendor Specific LISP Canonical Address Format (LCAF)" |
32 | | * draft-ietf-lisp-sec-04 "LISP-Security (LISP-SEC)", |
33 | | * draft-ermagan-lisp-nat-traversal-03 "NAT traversal for LISP", |
34 | | * draft-farinacci-lisp-name-encoding-09 "LISP Distinguished Name Encoding" |
35 | | * for packet format and protocol information. |
36 | | */ |
37 | | |
38 | | /* LISP Control Message types */ |
39 | 9 | #define LISP_MAP_REQUEST 1 |
40 | 97 | #define LISP_MAP_REPLY 2 |
41 | 14 | #define LISP_MAP_REGISTER 3 |
42 | 20 | #define LISP_MAP_NOTIFY 4 |
43 | 31 | #define LISP_MAP_REFERRAL 6 |
44 | 6 | #define LISP_INFO 7 |
45 | 198 | #define LISP_ECM 8 |
46 | | |
47 | | #define LISP_ACT_NONE 0 |
48 | | #define LISP_ACT_FWD_NATIVE 1 |
49 | | #define LISP_ACT_MREQ 2 |
50 | | #define LISP_ACT_DROP 3 |
51 | | #define LISP_ACT_DROP_PD 4 |
52 | | #define LISP_ACT_DROP_AF 5 |
53 | | #define LISP_ACT_FWD_UA 6 |
54 | | |
55 | | #define DDT_NODE_REF 0 |
56 | | #define DDT_MS_REF 1 |
57 | | #define DDT_MS_ACK 2 |
58 | | #define DDT_MS_NREG 3 |
59 | | #define DDT_DLGT_HOLE 4 |
60 | | #define DDT_NAUTH 5 |
61 | | |
62 | 1 | #define LCAF_NULL 0 |
63 | 0 | #define LCAF_AFI_LIST 1 |
64 | 82 | #define LCAF_IID 2 |
65 | 78 | #define LCAF_ASN 3 |
66 | | #define LCAF_APP_DATA 4 |
67 | 0 | #define LCAF_GEO 5 |
68 | | #define LCAF_OKEY 6 |
69 | 35 | #define LCAF_NATT 7 |
70 | 1 | #define LCAF_NONCE_LOC 8 |
71 | 80 | #define LCAF_MCAST_INFO 9 |
72 | 27 | #define LCAF_ELP 10 |
73 | | #define LCAF_SEC_KEY 11 |
74 | 0 | #define LCAF_SRC_DST_KEY 12 |
75 | 6 | #define LCAF_RLE 13 |
76 | | #define LCAF_JSON 14 |
77 | 0 | #define LCAF_KV_ADDR_PAIR 15 |
78 | 0 | #define LCAF_VENDOR 255 |
79 | | |
80 | 246 | #define LCAF_HEADER_LEN 6 |
81 | 20 | #define LISP_ECM_HEADER_LEN 4 |
82 | | |
83 | 3.24k | #define LISP_MAP_ACT 0xE000 |
84 | 334 | #define LISP_MAP_AUTH 0x1000 |
85 | 107 | #define REFERRAL_INCOMPLETE 0x0800 |
86 | 271 | #define LOCAL_BIT_MASK 0x0004 |
87 | 271 | #define PROBE_BIT_MASK 0x0002 |
88 | 271 | #define REACH_BIT_MASK 0x0001 |
89 | | |
90 | 16 | #define MAP_REQ_FLAG_A 0x080000 |
91 | 25 | #define MAP_REQ_FLAG_M 0x040000 |
92 | 25 | #define MAP_REQ_FLAG_P 0x020000 |
93 | 25 | #define MAP_REQ_FLAG_S 0x010000 |
94 | 25 | #define MAP_REQ_FLAG_p 0x008000 |
95 | 25 | #define MAP_REQ_FLAG_s 0x004000 |
96 | 16 | #define MAP_REQ_RESERVED 0x003FE0 |
97 | | |
98 | 113 | #define MAP_REP_FLAG_P 0x080000 |
99 | 16 | #define MAP_REP_FLAG_E 0x040000 |
100 | 16 | #define MAP_REP_FLAG_S 0x020000 |
101 | 16 | #define MAP_REP_RESERVED 0x01FFFF |
102 | | |
103 | 16 | #define MAP_REG_FLAG_P 0x080000 |
104 | 16 | #define MAP_REG_FLAG_S 0x040000 |
105 | 30 | #define MAP_REG_FLAG_I 0x020000 |
106 | 30 | #define MAP_REG_FLAG_R 0x010000 |
107 | 16 | #define MAP_REG_RESERVED 0x00FFFE |
108 | 16 | #define MAP_REG_FLAG_M 0x000001 |
109 | | |
110 | 36 | #define MAP_NOT_FLAG_I 0x080000 |
111 | 36 | #define MAP_NOT_FLAG_R 0x040000 |
112 | 16 | #define MAP_NOT_RESERVED 0x03FFFF |
113 | | |
114 | 16 | #define MAP_REF_RESERVED 0x0FFFFF |
115 | | |
116 | 22 | #define INFO_FLAG_R 0x080000 |
117 | 16 | #define INFO_RESERVED 0x07FFFFFF |
118 | | |
119 | 16 | #define ECM_FLAG_S 0x08000000 |
120 | 26 | #define ECM_FLAG_D 0x04000000 |
121 | | |
122 | 16 | #define MCINFO_FLAG_R 0x04 |
123 | 16 | #define MCINFO_FLAG_L 0x02 |
124 | 16 | #define MCINFO_FLAG_J 0x01 |
125 | | |
126 | 16 | #define ELP_FLAG_L 0x0004 |
127 | 16 | #define ELP_FLAG_P 0x0002 |
128 | 16 | #define ELP_FLAG_S 0x0001 |
129 | | |
130 | | /* Initialize the protocol and registered fields */ |
131 | | static int proto_lisp; |
132 | | static int hf_lisp_type; |
133 | | static int hf_lisp_irc; |
134 | | static int hf_lisp_records; |
135 | | static int hf_lisp_nonce; |
136 | | static int hf_lisp_keyid; |
137 | | static int hf_lisp_authlen; |
138 | | static int hf_lisp_auth; |
139 | | static int hf_lisp_msrtr_keyid; |
140 | | static int hf_lisp_msrtr_authlen; |
141 | | static int hf_lisp_msrtr_auth; |
142 | | static int hf_lisp_xtrid; |
143 | | static int hf_lisp_siteid; |
144 | | |
145 | | /* Map-Request fields */ |
146 | | static int hf_lisp_mreq_flags; |
147 | | static int hf_lisp_mreq_flags_auth; |
148 | | static int hf_lisp_mreq_flags_mrp; |
149 | | static int hf_lisp_mreq_flags_probe; |
150 | | static int hf_lisp_mreq_flags_smr; |
151 | | static int hf_lisp_mreq_flags_pitr; |
152 | | static int hf_lisp_mreq_flags_smri; |
153 | | static int hf_lisp_mreq_res; |
154 | | static int hf_lisp_mreq_srceid_afi; |
155 | | static int hf_lisp_mreq_srceid_string; |
156 | | static int hf_lisp_mreq_srceid_ipv4; |
157 | | static int hf_lisp_mreq_srceid_ipv6; |
158 | | static int hf_lisp_mreq_srceid_mac; |
159 | | static int hf_lisp_mreq_itr_rloc; |
160 | | static int hf_lisp_mreq_itr_rloc_afi; |
161 | | static int hf_lisp_mreq_itr_rloc_ipv4; |
162 | | static int hf_lisp_mreq_itr_rloc_ipv6; |
163 | | static int hf_lisp_mreq_record; |
164 | | static int hf_lisp_mreq_record_res; |
165 | | static int hf_lisp_mreq_record_prefix_length; |
166 | | static int hf_lisp_mreq_record_prefix_afi; |
167 | | static int hf_lisp_mreq_record_prefix_ipv4; |
168 | | static int hf_lisp_mreq_record_prefix_ipv6; |
169 | | static int hf_lisp_mreq_record_prefix_mac; |
170 | | static int hf_lisp_mreq_record_prefix_dn; |
171 | | |
172 | | /* Map-Reply fields */ |
173 | | static int hf_lisp_mrep_record; |
174 | | static int hf_lisp_mrep_flags_probe; |
175 | | static int hf_lisp_mrep_flags_enlr; |
176 | | static int hf_lisp_mrep_flags_sec; |
177 | | static int hf_lisp_mrep_res; |
178 | | |
179 | | /* Map-Register fields */ |
180 | | static int hf_lisp_mreg_flags_pmr; |
181 | | static int hf_lisp_mreg_flags_sec; |
182 | | static int hf_lisp_mreg_flags_xtrid; |
183 | | static int hf_lisp_mreg_flags_rtr; |
184 | | static int hf_lisp_mreg_flags_wmn; |
185 | | static int hf_lisp_mreg_res; |
186 | | |
187 | | /* Map-Notify fields */ |
188 | | static int hf_lisp_mnot_flags_xtrid; |
189 | | static int hf_lisp_mnot_flags_rtr; |
190 | | static int hf_lisp_mnot_res; |
191 | | |
192 | | /* Map-Referral fields */ |
193 | | static int hf_lisp_mref_res; |
194 | | static int hf_lisp_referral_sigcnt; |
195 | | static int hf_lisp_referral_incomplete; |
196 | | |
197 | | /* Info fields */ |
198 | | static int hf_lisp_info_r; |
199 | | static int hf_lisp_info_res1; |
200 | | static int hf_lisp_info_ttl; |
201 | | static int hf_lisp_info_res2; |
202 | | static int hf_lisp_info_prefix_masklen; |
203 | | static int hf_lisp_info_prefix_afi; |
204 | | static int hf_lisp_info_prefix_ipv4; |
205 | | static int hf_lisp_info_prefix_ipv6; |
206 | | static int hf_lisp_info_afi; |
207 | | |
208 | | /* Mapping record fields */ |
209 | | static int hf_lisp_mapping; |
210 | | static int hf_lisp_mapping_ttl; |
211 | | static int hf_lisp_mapping_loccnt; |
212 | | static int hf_lisp_mapping_eid_masklen; |
213 | | static int hf_lisp_mapping_act; |
214 | | static int hf_lisp_mapping_auth; |
215 | | static int hf_lisp_mapping_res1; |
216 | | static int hf_lisp_mapping_res2; |
217 | | static int hf_lisp_mapping_ver; |
218 | | static int hf_lisp_mapping_eid_afi; |
219 | | static int hf_lisp_mapping_eid_ipv4; |
220 | | static int hf_lisp_mapping_eid_ipv6; |
221 | | static int hf_lisp_mapping_eid_mac; |
222 | | static int hf_lisp_mapping_eid_dn; |
223 | | |
224 | | /* Locator fields */ |
225 | | static int hf_lisp_loc; |
226 | | static int hf_lisp_loc_priority; |
227 | | static int hf_lisp_loc_weight; |
228 | | static int hf_lisp_loc_mpriority; |
229 | | static int hf_lisp_loc_mweight; |
230 | | static int hf_lisp_loc_flags; |
231 | | static int hf_lisp_loc_flags_local; |
232 | | static int hf_lisp_loc_flags_probe; |
233 | | static int hf_lisp_loc_flags_reach; |
234 | | static int hf_lisp_loc_flags_res; |
235 | | static int hf_lisp_loc_afi; |
236 | | static int hf_lisp_loc_locator; |
237 | | |
238 | | /* LCAF fields */ |
239 | | static int hf_lisp_lcaf; |
240 | | static int hf_lisp_lcaf_header; |
241 | | static int hf_lisp_lcaf_res1; |
242 | | static int hf_lisp_lcaf_flags; |
243 | | static int hf_lisp_lcaf_type; |
244 | | static int hf_lisp_lcaf_res2; |
245 | | static int hf_lisp_lcaf_length; |
246 | | |
247 | | /* LCAF AFI List fields */ |
248 | | static int hf_lisp_lcaf_afi_list_item; |
249 | | static int hf_lisp_lcaf_afi_list_afi; |
250 | | static int hf_lisp_lcaf_afi_list_ipv4; |
251 | | static int hf_lisp_lcaf_afi_list_ipv6; |
252 | | static int hf_lisp_lcaf_afi_list_mac; |
253 | | static int hf_lisp_lcaf_afi_list_dn; |
254 | | |
255 | | /* LCAF IID fields */ |
256 | | static int hf_lisp_lcaf_iid; |
257 | | static int hf_lisp_lcaf_iid_afi; |
258 | | static int hf_lisp_lcaf_iid_ipv4; |
259 | | static int hf_lisp_lcaf_iid_ipv6; |
260 | | static int hf_lisp_lcaf_iid_mac; |
261 | | static int hf_lisp_lcaf_iid_dn; |
262 | | |
263 | | /* LCAF ASN fields */ |
264 | | static int hf_lisp_lcaf_asn; |
265 | | static int hf_lisp_lcaf_asn_afi; |
266 | | static int hf_lisp_lcaf_asn_ipv4; |
267 | | static int hf_lisp_lcaf_asn_ipv6; |
268 | | static int hf_lisp_lcaf_asn_mac; |
269 | | static int hf_lisp_lcaf_asn_dn; |
270 | | |
271 | | /* LCAF Geo Coordinates fields */ |
272 | | static int hf_lisp_lcaf_geo_lat; |
273 | | static int hf_lisp_lcaf_geo_lat_hemisphere; |
274 | | static int hf_lisp_lcaf_geo_lat_deg; |
275 | | static int hf_lisp_lcaf_geo_lat_min; |
276 | | static int hf_lisp_lcaf_geo_lat_sec; |
277 | | static int hf_lisp_lcaf_geo_lon; |
278 | | static int hf_lisp_lcaf_geo_lon_hemisphere; |
279 | | static int hf_lisp_lcaf_geo_lon_deg; |
280 | | static int hf_lisp_lcaf_geo_lon_min; |
281 | | static int hf_lisp_lcaf_geo_lon_sec; |
282 | | static int hf_lisp_lcaf_geo_alt; |
283 | | static int hf_lisp_lcaf_geo_afi; |
284 | | static int hf_lisp_lcaf_geo_ipv4; |
285 | | static int hf_lisp_lcaf_geo_ipv6; |
286 | | static int hf_lisp_lcaf_geo_mac; |
287 | | static int hf_lisp_lcaf_geo_dn; |
288 | | |
289 | | /* LCAF NATT fields */ |
290 | | static int hf_lisp_lcaf_natt_msport; |
291 | | static int hf_lisp_lcaf_natt_etrport; |
292 | | static int hf_lisp_lcaf_natt_rloc; |
293 | | static int hf_lisp_lcaf_natt_rloc_afi; |
294 | | static int hf_lisp_lcaf_natt_rloc_ipv4; |
295 | | static int hf_lisp_lcaf_natt_rloc_ipv6; |
296 | | |
297 | | /* LCAF Nonce Locator fields */ |
298 | | static int hf_lisp_lcaf_nonce_loc_res; |
299 | | static int hf_lisp_lcaf_nonce_loc; |
300 | | static int hf_lisp_lcaf_nonce_loc_afi; |
301 | | static int hf_lisp_lcaf_nonce_loc_ipv4; |
302 | | static int hf_lisp_lcaf_nonce_loc_ipv6; |
303 | | static int hf_lisp_lcaf_nonce_loc_mac; |
304 | | static int hf_lisp_lcaf_nonce_loc_dn; |
305 | | |
306 | | /* LCAF Multicast Group Membership Information fields */ |
307 | | static int hf_lisp_lcaf_mcinfo_flags; |
308 | | static int hf_lisp_lcaf_mcinfo_flags_res; |
309 | | static int hf_lisp_lcaf_mcinfo_flags_rp; |
310 | | static int hf_lisp_lcaf_mcinfo_flags_leave; |
311 | | static int hf_lisp_lcaf_mcinfo_flags_join; |
312 | | static int hf_lisp_lcaf_mcinfo_iid; |
313 | | static int hf_lisp_lcaf_mcinfo_res; |
314 | | static int hf_lisp_lcaf_mcinfo_src_masklen; |
315 | | static int hf_lisp_lcaf_mcinfo_grp_masklen; |
316 | | static int hf_lisp_lcaf_mcinfo_src; |
317 | | static int hf_lisp_lcaf_mcinfo_src_afi; |
318 | | static int hf_lisp_lcaf_mcinfo_src_ipv4; |
319 | | static int hf_lisp_lcaf_mcinfo_src_ipv6; |
320 | | static int hf_lisp_lcaf_mcinfo_grp; |
321 | | static int hf_lisp_lcaf_mcinfo_grp_afi; |
322 | | static int hf_lisp_lcaf_mcinfo_grp_ipv4; |
323 | | static int hf_lisp_lcaf_mcinfo_grp_ipv6; |
324 | | |
325 | | /* LCAF ELP fields */ |
326 | | static int hf_lisp_lcaf_elp_hop; |
327 | | static int hf_lisp_lcaf_elp_hop_flags; |
328 | | static int hf_lisp_lcaf_elp_hop_flags_res; |
329 | | static int hf_lisp_lcaf_elp_hop_flags_lookup; |
330 | | static int hf_lisp_lcaf_elp_hop_flags_probe; |
331 | | static int hf_lisp_lcaf_elp_hop_flags_strict; |
332 | | static int hf_lisp_lcaf_elp_hop_afi; |
333 | | static int hf_lisp_lcaf_elp_hop_ipv4; |
334 | | static int hf_lisp_lcaf_elp_hop_ipv6; |
335 | | |
336 | | /* LCAF Source/Destination 2-Tuple Lookups fields */ |
337 | | static int hf_lisp_lcaf_srcdst_res; |
338 | | static int hf_lisp_lcaf_srcdst_src_masklen; |
339 | | static int hf_lisp_lcaf_srcdst_dst_masklen; |
340 | | static int hf_lisp_lcaf_srcdst_src; |
341 | | static int hf_lisp_lcaf_srcdst_src_afi; |
342 | | static int hf_lisp_lcaf_srcdst_src_ipv4; |
343 | | static int hf_lisp_lcaf_srcdst_src_ipv6; |
344 | | static int hf_lisp_lcaf_srcdst_src_mac; |
345 | | static int hf_lisp_lcaf_srcdst_dst; |
346 | | static int hf_lisp_lcaf_srcdst_dst_afi; |
347 | | static int hf_lisp_lcaf_srcdst_dst_ipv4; |
348 | | static int hf_lisp_lcaf_srcdst_dst_ipv6; |
349 | | static int hf_lisp_lcaf_srcdst_dst_mac; |
350 | | |
351 | | /* LCAF RLE fields */ |
352 | | static int hf_lisp_lcaf_rle_entry; |
353 | | static int hf_lisp_lcaf_rle_entry_res; |
354 | | static int hf_lisp_lcaf_rle_entry_level; |
355 | | static int hf_lisp_lcaf_rle_entry_afi; |
356 | | static int hf_lisp_lcaf_rle_entry_ipv4; |
357 | | static int hf_lisp_lcaf_rle_entry_ipv6; |
358 | | |
359 | | /* LCAF Key/Value Pair fields */ |
360 | | static int hf_lisp_lcaf_kv_key; |
361 | | static int hf_lisp_lcaf_kv_key_afi; |
362 | | static int hf_lisp_lcaf_kv_key_ipv4; |
363 | | static int hf_lisp_lcaf_kv_key_ipv6; |
364 | | static int hf_lisp_lcaf_kv_key_mac; |
365 | | static int hf_lisp_lcaf_kv_key_dn; |
366 | | static int hf_lisp_lcaf_kv_value; |
367 | | static int hf_lisp_lcaf_kv_value_afi; |
368 | | static int hf_lisp_lcaf_kv_value_ipv4; |
369 | | static int hf_lisp_lcaf_kv_value_ipv6; |
370 | | static int hf_lisp_lcaf_kv_value_mac; |
371 | | static int hf_lisp_lcaf_kv_value_dn; |
372 | | |
373 | | /* Vendor Specific LCAF fields */ |
374 | | static int hf_lisp_lcaf_vendor_res; |
375 | | static int hf_lisp_lcaf_vendor_oui; |
376 | | static int hf_lisp_lcaf_vendor_data; |
377 | | |
378 | | /* Encapsulated Control Message fields */ |
379 | | static int hf_lisp_ecm_flags_sec; |
380 | | static int hf_lisp_ecm_flags_ddt; |
381 | | static int hf_lisp_ecm_res; |
382 | | |
383 | | /* Initialize the subtree pointers */ |
384 | | static int ett_lisp; |
385 | | static int ett_lisp_mr; |
386 | | static int ett_lisp_mreq_flags; |
387 | | static int ett_lisp_mapping; |
388 | | static int ett_lisp_itr; |
389 | | static int ett_lisp_record; |
390 | | static int ett_lisp_lcaf; |
391 | | static int ett_lisp_lcaf_header; |
392 | | static int ett_lisp_lcaf_geo_lat; |
393 | | static int ett_lisp_lcaf_geo_lon; |
394 | | static int ett_lisp_lcaf_natt_rloc; |
395 | | static int ett_lisp_lcaf_mcinfo_flags; |
396 | | static int ett_lisp_lcaf_mcinfo_src; |
397 | | static int ett_lisp_lcaf_mcinfo_grp; |
398 | | static int ett_lisp_lcaf_elp_hop; |
399 | | static int ett_lisp_lcaf_elp_hop_flags; |
400 | | static int ett_lisp_lcaf_srcdst_src; |
401 | | static int ett_lisp_lcaf_srcdst_dst; |
402 | | static int ett_lisp_lcaf_rle_entry; |
403 | | static int ett_lisp_lcaf_kv_key; |
404 | | static int ett_lisp_lcaf_kv_value; |
405 | | static int ett_lisp_lcaf_vendor; |
406 | | static int ett_lisp_loc; |
407 | | static int ett_lisp_loc_flags; |
408 | | static int ett_lisp_info_prefix; |
409 | | static int ett_lisp_afi_list; |
410 | | |
411 | | static expert_field ei_lisp_undecoded; |
412 | | static expert_field ei_lisp_expected_field; |
413 | | static expert_field ei_lisp_invalid_field; |
414 | | static expert_field ei_lisp_unexpected_field; |
415 | | |
416 | | static dissector_handle_t lisp_handle; |
417 | | |
418 | | static dissector_handle_t ipv4_handle; |
419 | | static dissector_handle_t ipv6_handle; |
420 | | |
421 | | static bool encapsulated; |
422 | | static bool ddt_originated; |
423 | | |
424 | | static const value_string lisp_typevals[] = { |
425 | | { LISP_MAP_REQUEST, "Map-Request" }, |
426 | | { LISP_MAP_REPLY, "Map-Reply" }, |
427 | | { LISP_MAP_REGISTER, "Map-Register" }, |
428 | | { LISP_MAP_NOTIFY, "Map-Notify" }, |
429 | | { LISP_MAP_REFERRAL, "Map-Referral" }, |
430 | | { LISP_INFO, "Info" }, |
431 | | { LISP_ECM, "Encapsulated Control Message" }, |
432 | | { 0, NULL} |
433 | | }; |
434 | | |
435 | | static const value_string mapping_actions[] = { |
436 | | { LISP_ACT_NONE, "No-Action" }, |
437 | | { LISP_ACT_FWD_NATIVE, "Natively-Forward" }, |
438 | | { LISP_ACT_MREQ, "Send-Map-Request" }, |
439 | | { LISP_ACT_DROP, "Drop/No-Reason" }, |
440 | | { LISP_ACT_DROP_PD, "Drop/Policy-Denied" }, |
441 | | { LISP_ACT_DROP_AF, "Drop/Authentication-Failure" }, |
442 | | { LISP_ACT_FWD_UA, "Forward-For-Unknown-Address" }, |
443 | | { 0, NULL} |
444 | | }; |
445 | | |
446 | | static const value_string referral_actions[] = { |
447 | | { DDT_NODE_REF, "Node Referral" }, |
448 | | { DDT_MS_REF, "Map-Server Referral" }, |
449 | | { DDT_MS_ACK, "Map-Server ACK" }, |
450 | | { DDT_MS_NREG, "Map-Server Not Registered" }, |
451 | | { DDT_DLGT_HOLE, "Delegation Hole" }, |
452 | | { DDT_NAUTH, "Not Authoritative" }, |
453 | | { 0, NULL} |
454 | | }; |
455 | | |
456 | | static const value_string lcaf_typevals[] = { |
457 | | { LCAF_NULL, "Null Body" }, |
458 | | { LCAF_AFI_LIST, "AFI List" }, |
459 | | { LCAF_IID, "Instance ID" }, |
460 | | { LCAF_ASN, "AS Number" }, |
461 | | { LCAF_APP_DATA, "Application Data" }, |
462 | | { LCAF_GEO, "Geo Coordinates" }, |
463 | | { LCAF_OKEY, "Opaque Key" }, |
464 | | { LCAF_NATT, "NAT Traversal" }, |
465 | | { LCAF_NONCE_LOC, "Nonce Locator" }, |
466 | | { LCAF_MCAST_INFO, "Multicast Info" }, |
467 | | { LCAF_ELP, "Explicit Locator Path" }, |
468 | | { LCAF_SEC_KEY, "Security Key" }, |
469 | | { LCAF_SRC_DST_KEY, "Source/Dest Key" }, |
470 | | { LCAF_RLE, "Replication List Entry" }, |
471 | | { LCAF_JSON, "JSON Data Model" }, |
472 | | { LCAF_KV_ADDR_PAIR, "Key/Value Address Pair" }, |
473 | | { LCAF_VENDOR, "Vendor Specific LCAF" }, |
474 | | { 0, NULL} |
475 | | }; |
476 | | |
477 | | static const value_string lat_typevals[] = { |
478 | | { 0, "S" }, |
479 | | { 1, "N" }, |
480 | | { 0, NULL} |
481 | | }; |
482 | | |
483 | | static const value_string lon_typevals[] = { |
484 | | { 0, "W" }, |
485 | | { 1, "E" }, |
486 | | { 0, NULL} |
487 | | }; |
488 | | |
489 | | /* Add your company OUI here if you're developing a vendor LCAF dissector */ |
490 | | static const value_string oui_vals[] = { |
491 | | { OUI_CISCO, "Cisco" }, |
492 | | { 0, NULL} |
493 | | }; |
494 | | |
495 | | static int |
496 | | get_lcaf_data(tvbuff_t *tvb, int offset, uint8_t *lcaf_type, uint16_t *len) |
497 | 80 | { |
498 | | /* Jump over Rsvd1 and Flags (16 bits) */ |
499 | 80 | offset += 2; |
500 | | |
501 | | /* Type (8 bits) */ |
502 | 80 | if (lcaf_type) |
503 | 80 | *lcaf_type = tvb_get_uint8(tvb, offset); |
504 | 80 | offset += 1; |
505 | | |
506 | | /* Jump over Rsvd2 bits (8 bits) */ |
507 | 80 | offset += 1; |
508 | | |
509 | | /* Length (16 bits) */ |
510 | 80 | if (len) |
511 | | /* Adding the size of the LCAF header as well */ |
512 | 80 | *len = tvb_get_ntohs(tvb, offset) + LCAF_HEADER_LEN; |
513 | 80 | offset += 2; |
514 | | |
515 | 80 | return offset; |
516 | 80 | } |
517 | | |
518 | | const char * |
519 | | // NOLINTNEXTLINE(misc-no-recursion) |
520 | | get_addr_str(tvbuff_t *tvb, packet_info *pinfo, int offset, uint16_t afi, uint16_t *addr_len) |
521 | 11.2k | { |
522 | 11.2k | const char *notset_str = "not set"; |
523 | 11.2k | const char *addr_str; |
524 | 11.2k | uint8_t lcaf_type; |
525 | 11.2k | uint32_t iid, asn; |
526 | 11.2k | uint16_t cur_len; |
527 | | |
528 | 11.2k | switch (afi) { |
529 | 1.93k | case AFNUM_RESERVED_0: |
530 | 1.93k | *addr_len = 0; |
531 | 1.93k | return notset_str; |
532 | 62 | case AFNUM_IP: |
533 | 62 | *addr_len = INET_ADDRLEN; |
534 | 62 | addr_str = tvb_ip_to_str(pinfo->pool, tvb, offset); |
535 | 62 | return addr_str; |
536 | 27 | case AFNUM_IP6: |
537 | 27 | *addr_len = INET6_ADDRLEN; |
538 | 27 | addr_str = tvb_ip6_to_str(pinfo->pool, tvb, offset); |
539 | 27 | return addr_str; |
540 | 80 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
541 | 80 | get_lcaf_data(tvb, offset, &lcaf_type, addr_len); |
542 | 80 | addr_str = val_to_str(pinfo->pool, lcaf_type, lcaf_typevals, "Unknown LCAF Type (%d)"); |
543 | 80 | if (lcaf_type == LCAF_IID) { |
544 | 2 | iid = tvb_get_ntohl(tvb, offset + LCAF_HEADER_LEN); |
545 | 2 | afi = tvb_get_ntohs(tvb, offset + LCAF_HEADER_LEN + 4); |
546 | 2 | increment_dissection_depth(pinfo); |
547 | 2 | addr_str = get_addr_str(tvb, pinfo, offset + LCAF_HEADER_LEN + 6, afi, &cur_len); |
548 | 2 | decrement_dissection_depth(pinfo); |
549 | 2 | return wmem_strdup_printf(pinfo->pool, "[%d] %s", iid, addr_str); |
550 | 2 | } |
551 | 78 | if (lcaf_type == LCAF_ASN) { |
552 | 0 | asn = tvb_get_ntohl(tvb, offset + LCAF_HEADER_LEN); |
553 | 0 | afi = tvb_get_ntohs(tvb, offset + LCAF_HEADER_LEN + 4); |
554 | 0 | increment_dissection_depth(pinfo); |
555 | 0 | addr_str = get_addr_str(tvb, pinfo, offset + LCAF_HEADER_LEN + 6, afi, &cur_len); |
556 | 0 | decrement_dissection_depth(pinfo); |
557 | 0 | return wmem_strdup_printf(pinfo->pool, "%s (ASN %d)", addr_str, asn); |
558 | 0 | } |
559 | 78 | return addr_str; |
560 | 9 | case AFNUM_802: |
561 | 10 | case AFNUM_48_BIT_MAC: |
562 | 10 | *addr_len = EUI48_ADDRLEN; |
563 | 10 | addr_str = tvb_ether_to_str(pinfo->pool, tvb, offset); |
564 | 10 | return addr_str; |
565 | 2 | case AFNUM_DISTINGUISHED_NAME: |
566 | 2 | *addr_len = tvb_strsize(tvb, offset); |
567 | 2 | addr_str = (char*)tvb_get_stringz_enc(pinfo->pool, tvb, offset, NULL, ENC_ASCII); |
568 | 2 | return addr_str; |
569 | 9.14k | default: |
570 | 9.14k | return NULL; |
571 | 11.2k | } |
572 | 11.2k | } |
573 | | |
574 | | static int |
575 | | // NOLINTNEXTLINE(misc-no-recursion) |
576 | | dissect_lcaf_natt_rloc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, |
577 | | int offset, const char *str, int idx) |
578 | 6.84k | { |
579 | 6.84k | uint16_t addr_len = 0; |
580 | 6.84k | uint16_t rloc_afi; |
581 | 6.84k | const char *rloc_str; |
582 | 6.84k | proto_item *ti; |
583 | 6.84k | proto_tree *rloc_tree; |
584 | | |
585 | 6.84k | ti = proto_tree_add_item(tree, hf_lisp_lcaf_natt_rloc, tvb, offset, 2, ENC_NA); |
586 | 6.84k | rloc_tree = proto_item_add_subtree(ti, ett_lisp_lcaf_natt_rloc); |
587 | | |
588 | | /* AFI (2 bytes) */ |
589 | 6.84k | proto_tree_add_item_ret_uint16(rloc_tree, hf_lisp_lcaf_natt_rloc_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &rloc_afi); |
590 | 6.84k | offset += 2; |
591 | | |
592 | | /* Reencap hop */ |
593 | 6.84k | rloc_str = get_addr_str(tvb, pinfo, offset, rloc_afi, &addr_len); |
594 | | |
595 | 6.84k | switch (rloc_afi) { |
596 | 1.43k | case AFNUM_RESERVED_0: |
597 | 1.43k | break; |
598 | 51 | case AFNUM_IP: |
599 | 51 | proto_tree_add_item(rloc_tree, hf_lisp_lcaf_natt_rloc_ipv4, |
600 | 51 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
601 | 51 | break; |
602 | 11 | case AFNUM_IP6: |
603 | 11 | proto_tree_add_item(rloc_tree, hf_lisp_lcaf_natt_rloc_ipv6, |
604 | 11 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
605 | 11 | break; |
606 | 11 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
607 | 11 | dissect_lcaf(tvb, pinfo, rloc_tree, offset, NULL); |
608 | 11 | break; |
609 | 5.31k | default: |
610 | 5.31k | expert_add_info_format(pinfo, rloc_tree, &ei_lisp_unexpected_field, |
611 | 5.31k | "Unexpected NAT-T RLOC AFI (%d), cannot decode", rloc_afi); |
612 | 6.84k | } |
613 | | |
614 | 6.81k | if (idx) { |
615 | 6.70k | proto_item_append_text(ti, str, idx, rloc_str); |
616 | 6.70k | } else { |
617 | 105 | proto_item_append_text(ti, str, rloc_str); |
618 | 105 | } |
619 | 6.81k | proto_item_set_len(ti, 2 + addr_len); |
620 | | |
621 | 6.81k | return addr_len + 2; |
622 | 6.84k | } |
623 | | |
624 | | static int |
625 | | // NOLINTNEXTLINE(misc-no-recursion) |
626 | | dissect_lcaf_elp_hop(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, |
627 | | int offset, int idx, proto_item *tip) |
628 | 564 | { |
629 | 564 | uint16_t addr_len = 0; |
630 | 564 | uint16_t hop_afi; |
631 | 564 | uint16_t hop_flags; |
632 | 564 | const char *hop_str; |
633 | 564 | proto_item *ti, *ti_flags; |
634 | 564 | proto_tree *hop_tree, *flags_tree; |
635 | | |
636 | 564 | ti = proto_tree_add_item(tree, hf_lisp_lcaf_elp_hop, tvb, offset, 2, ENC_NA); |
637 | 564 | hop_tree = proto_item_add_subtree(ti, ett_lisp_lcaf_elp_hop); |
638 | | |
639 | | /* Flags (2 bytes) */ |
640 | 564 | ti_flags = proto_tree_add_item(hop_tree, hf_lisp_lcaf_elp_hop_flags, tvb, offset, 2, ENC_BIG_ENDIAN); |
641 | 564 | flags_tree = proto_item_add_subtree(ti_flags, ett_lisp_lcaf_elp_hop_flags); |
642 | 564 | proto_tree_add_item(flags_tree, hf_lisp_lcaf_elp_hop_flags_res, tvb, offset, 2, ENC_BIG_ENDIAN); |
643 | 564 | proto_tree_add_item(flags_tree, hf_lisp_lcaf_elp_hop_flags_lookup, tvb, offset, 2, ENC_BIG_ENDIAN); |
644 | 564 | proto_tree_add_item(flags_tree, hf_lisp_lcaf_elp_hop_flags_probe, tvb, offset, 2, ENC_BIG_ENDIAN); |
645 | 564 | proto_tree_add_item(flags_tree, hf_lisp_lcaf_elp_hop_flags_strict, tvb, offset, 2, ENC_BIG_ENDIAN); |
646 | | |
647 | 564 | hop_flags = tvb_get_ntohs(tvb, offset); |
648 | 564 | offset += 2; |
649 | | |
650 | | /* AFI (2 bytes) */ |
651 | 564 | proto_tree_add_item_ret_uint16(hop_tree, hf_lisp_lcaf_elp_hop_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &hop_afi); |
652 | 564 | offset += 2; |
653 | | |
654 | | /* Reencap hop */ |
655 | 564 | hop_str = get_addr_str(tvb, pinfo, offset, hop_afi, &addr_len); |
656 | | |
657 | 564 | switch (hop_afi) { |
658 | 4 | case AFNUM_IP: |
659 | 4 | proto_tree_add_item(hop_tree, hf_lisp_lcaf_elp_hop_ipv4, |
660 | 4 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
661 | 4 | break; |
662 | 1 | case AFNUM_IP6: |
663 | 1 | proto_tree_add_item(hop_tree, hf_lisp_lcaf_elp_hop_ipv6, |
664 | 1 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
665 | 1 | break; |
666 | 1 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
667 | 1 | dissect_lcaf(tvb, pinfo, hop_tree, offset, NULL); |
668 | 1 | break; |
669 | 536 | default: |
670 | 536 | expert_add_info_format(pinfo, hop_tree, &ei_lisp_unexpected_field, |
671 | 536 | "Unexpected Reencap Hop AFI (%d), cannot decode", hop_afi); |
672 | 564 | } |
673 | | |
674 | 541 | if (idx) { |
675 | 541 | proto_item_append_text(ti, " %d.", idx); |
676 | 541 | } else { |
677 | 0 | proto_item_append_text(ti, ":"); |
678 | 0 | } |
679 | | |
680 | 541 | proto_item_append_text(ti, " %s", hop_str); |
681 | 541 | proto_item_set_len(ti, 4 + addr_len); |
682 | | |
683 | 541 | if (hop_flags & 0x04) |
684 | 318 | proto_item_append_text(ti, ", Lookup"); |
685 | 541 | if (hop_flags & 0x02) |
686 | 373 | proto_item_append_text(ti, ", RLOC-Probe"); |
687 | 541 | if (hop_flags & 0x01) |
688 | 269 | proto_item_append_text(ti, ", Strict"); |
689 | | |
690 | 541 | proto_item_append_text(tip, ", %s", hop_str); |
691 | | |
692 | 541 | return addr_len + 4; |
693 | 564 | } |
694 | | |
695 | | |
696 | | static int |
697 | | // NOLINTNEXTLINE(misc-no-recursion) |
698 | | dissect_lcaf_rle_entry(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, |
699 | | int offset, int idx, proto_item *tip) |
700 | 54 | { |
701 | 54 | uint8_t level; |
702 | 54 | uint16_t addr_len = 0; |
703 | 54 | uint16_t entry_afi; |
704 | 54 | const char *entry_str; |
705 | 54 | proto_item *ti; |
706 | 54 | proto_tree *entry_tree; |
707 | | |
708 | 54 | ti = proto_tree_add_item(tree, hf_lisp_lcaf_rle_entry, tvb, offset, 2, ENC_NA); |
709 | 54 | entry_tree = proto_item_add_subtree(ti, ett_lisp_lcaf_rle_entry); |
710 | | |
711 | | /* Reserved (3 bytes) */ |
712 | 54 | proto_tree_add_item(entry_tree, hf_lisp_lcaf_rle_entry_res, tvb, offset, 3, ENC_BIG_ENDIAN); |
713 | 54 | offset += 3; |
714 | | |
715 | | /* Level Value (1 byte) */ |
716 | 54 | proto_tree_add_item_ret_uint8(entry_tree, hf_lisp_lcaf_rle_entry_level, tvb, offset, 1, ENC_BIG_ENDIAN, &level); |
717 | 54 | offset += 1; |
718 | | |
719 | | /* AFI (2 bytes) */ |
720 | 54 | proto_tree_add_item_ret_uint16(entry_tree, hf_lisp_lcaf_rle_entry_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &entry_afi); |
721 | 54 | offset += 2; |
722 | | |
723 | | /* RTR/ETR entry */ |
724 | 54 | entry_str = get_addr_str(tvb, pinfo, offset, entry_afi, &addr_len); |
725 | | |
726 | 54 | switch (entry_afi) { |
727 | 1 | case AFNUM_IP: |
728 | 1 | proto_tree_add_item(entry_tree, hf_lisp_lcaf_rle_entry_ipv4, |
729 | 1 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
730 | 1 | break; |
731 | 0 | case AFNUM_IP6: |
732 | 0 | proto_tree_add_item(entry_tree, hf_lisp_lcaf_rle_entry_ipv6, |
733 | 0 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
734 | 0 | break; |
735 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
736 | 0 | dissect_lcaf(tvb, pinfo, entry_tree, offset, NULL); |
737 | 0 | break; |
738 | 48 | default: |
739 | 48 | expert_add_info_format(pinfo, entry_tree, &ei_lisp_unexpected_field, |
740 | 48 | "Unexpected RTR/ETR AFI (%d), cannot decode", entry_afi); |
741 | 54 | } |
742 | | |
743 | 49 | if (idx) { |
744 | 49 | proto_item_append_text(ti, " %d.", idx); |
745 | 49 | } else { |
746 | 0 | proto_item_append_text(ti, ":"); |
747 | 0 | } |
748 | | |
749 | 49 | proto_item_append_text(ti, " %s, level %d", entry_str, level); |
750 | 49 | proto_item_set_len(ti, 6 + addr_len); |
751 | | |
752 | 49 | proto_item_append_text(tip, ", %s (%d)", entry_str, level); |
753 | | |
754 | 49 | return addr_len + 6; |
755 | 54 | } |
756 | | |
757 | | |
758 | | /* |
759 | | * Dissector code for AFI List |
760 | | * |
761 | | */ |
762 | | |
763 | | static int |
764 | | // NOLINTNEXTLINE(misc-no-recursion) |
765 | | dissect_lcaf_afi_list(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, |
766 | | int offset, uint16_t length) |
767 | 0 | { |
768 | 0 | int old_offset; |
769 | 0 | int remaining = length; |
770 | 0 | int i = 1; |
771 | 0 | int str_len; |
772 | |
|
773 | 0 | uint16_t addr_len = 0; |
774 | 0 | uint16_t afi; |
775 | 0 | const char *lcaf_str; |
776 | 0 | char *disp_str; |
777 | 0 | proto_item *tir; |
778 | 0 | proto_tree *lisp_afi_list_tree; |
779 | |
|
780 | 0 | while (remaining > 0) { |
781 | 0 | afi = tvb_get_ntohs(tvb, offset); |
782 | 0 | tir = proto_tree_add_item(tree, hf_lisp_lcaf_afi_list_item, tvb, offset, LCAF_HEADER_LEN, ENC_NA); |
783 | 0 | lisp_afi_list_tree = proto_item_add_subtree(tir, ett_lisp_afi_list); |
784 | 0 | proto_tree_add_item(lisp_afi_list_tree, hf_lisp_lcaf_afi_list_afi, tvb, offset, 2, ENC_BIG_ENDIAN); |
785 | 0 | offset += 2; |
786 | 0 | remaining -= 2; |
787 | |
|
788 | 0 | switch (afi) { |
789 | 0 | case AFNUM_IP: |
790 | 0 | proto_tree_add_item(lisp_afi_list_tree, hf_lisp_lcaf_afi_list_ipv4, tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
791 | 0 | proto_item_append_text(tir, " %d. IPv4 Address: %s", i, tvb_ip_to_str(pinfo->pool, tvb, offset)); |
792 | 0 | proto_item_set_len(tir, 2 + INET_ADDRLEN); |
793 | 0 | offset += INET_ADDRLEN; |
794 | 0 | remaining -= INET_ADDRLEN; |
795 | 0 | break; |
796 | 0 | case AFNUM_IP6: |
797 | 0 | proto_tree_add_item(lisp_afi_list_tree, hf_lisp_lcaf_afi_list_ipv6, tvb, offset, INET6_ADDRLEN, ENC_NA); |
798 | 0 | proto_item_append_text(tir, " %d. IPv6 Address: %s", i, tvb_ip6_to_str(pinfo->pool, tvb, offset)); |
799 | 0 | proto_item_set_len(tir, 2 + INET6_ADDRLEN); |
800 | 0 | offset += INET6_ADDRLEN; |
801 | 0 | remaining -= INET6_ADDRLEN; |
802 | 0 | break; |
803 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
804 | 0 | old_offset = offset; |
805 | 0 | lcaf_str = get_addr_str(tvb, pinfo, offset, afi, &addr_len); |
806 | 0 | proto_item_append_text(tir, " %d. %s", i, lcaf_str); |
807 | 0 | proto_item_set_len(tir, 2 + addr_len); |
808 | 0 | offset = dissect_lcaf(tvb, pinfo, lisp_afi_list_tree, offset, tir); |
809 | 0 | remaining -= (offset - old_offset); |
810 | 0 | break; |
811 | 0 | case AFNUM_802: |
812 | 0 | case AFNUM_48_BIT_MAC: |
813 | 0 | proto_tree_add_item(lisp_afi_list_tree, hf_lisp_lcaf_afi_list_mac, tvb, offset, EUI48_ADDRLEN, ENC_NA); |
814 | 0 | proto_item_append_text(tir, " %d. MAC Address: %s", i, tvb_ether_to_str(pinfo->pool, tvb, offset)); |
815 | 0 | proto_item_set_len(tir, 2 + EUI48_ADDRLEN); |
816 | 0 | offset += EUI48_ADDRLEN; |
817 | 0 | remaining -= EUI48_ADDRLEN; |
818 | 0 | break; |
819 | 0 | case AFNUM_DISTINGUISHED_NAME: |
820 | 0 | str_len = tvb_strsize(tvb, offset); |
821 | 0 | proto_tree_add_item_ret_display_string(lisp_afi_list_tree, hf_lisp_lcaf_afi_list_dn, tvb, offset, str_len, ENC_ASCII, |
822 | 0 | pinfo->pool, &disp_str); |
823 | 0 | proto_item_append_text(tir, " %d. Distinguished Name: %s", i, disp_str); |
824 | 0 | offset += str_len; |
825 | 0 | remaining -= str_len; |
826 | 0 | break; |
827 | 0 | default: |
828 | 0 | expert_add_info_format(pinfo, tree, &ei_lisp_unexpected_field, |
829 | 0 | "Unexpected AFI (%d), cannot decode", afi); |
830 | 0 | return -1; |
831 | 0 | } |
832 | 0 | i++; |
833 | 0 | } |
834 | | |
835 | 0 | return offset; |
836 | 0 | } |
837 | | |
838 | | |
839 | | /* |
840 | | * Dissector code for Instance ID |
841 | | * |
842 | | * 0 1 2 3 |
843 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
844 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
845 | | * | AFI = 16387 | Rsvd1 | Flags | |
846 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
847 | | * | Type = 2 | Rsvd2 | 4 + n | |
848 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
849 | | * | Instance ID | |
850 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
851 | | * | AFI = x | Address ... | |
852 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
853 | | * |
854 | | */ |
855 | | |
856 | | static int |
857 | | // NOLINTNEXTLINE(misc-no-recursion) |
858 | | dissect_lcaf_iid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, proto_item *tip) |
859 | 2 | { |
860 | 2 | const char *ip_address; |
861 | 2 | uint16_t afi, addr_len = 0; |
862 | 2 | int str_len; |
863 | | |
864 | | /* Instance ID (4 bytes) */ |
865 | 2 | proto_tree_add_item(tree, hf_lisp_lcaf_iid, tvb, offset, 4, ENC_BIG_ENDIAN); |
866 | 2 | proto_item_append_text(tip, ": %d", tvb_get_ntohl(tvb, offset)); |
867 | 2 | offset += 4; |
868 | | |
869 | | /* AFI (2 bytes) */ |
870 | 2 | proto_tree_add_item_ret_uint16(tree, hf_lisp_lcaf_iid_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &afi); |
871 | 2 | offset += 2; |
872 | | |
873 | | /* Address */ |
874 | 2 | ip_address = get_addr_str(tvb, pinfo, offset, afi, &addr_len); |
875 | 2 | if (ip_address && afi) |
876 | 0 | proto_item_append_text(tip, ", Address: %s", ip_address); |
877 | | |
878 | 2 | switch (afi) { |
879 | 1 | case AFNUM_RESERVED_0: |
880 | 1 | break; |
881 | 0 | case AFNUM_IP: |
882 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_iid_ipv4, |
883 | 0 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
884 | 0 | offset += INET_ADDRLEN; |
885 | 0 | break; |
886 | 0 | case AFNUM_IP6: |
887 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_iid_ipv6, |
888 | 0 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
889 | 0 | offset += INET6_ADDRLEN; |
890 | 0 | break; |
891 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
892 | 0 | offset = dissect_lcaf(tvb, pinfo, tree, offset, NULL); |
893 | 0 | break; |
894 | 0 | case AFNUM_802: |
895 | 0 | case AFNUM_48_BIT_MAC: |
896 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_iid_mac, |
897 | 0 | tvb, offset, EUI48_ADDRLEN, ENC_NA); |
898 | 0 | offset += EUI48_ADDRLEN; |
899 | 0 | break; |
900 | 0 | case AFNUM_DISTINGUISHED_NAME: |
901 | 0 | str_len = tvb_strsize(tvb, offset); |
902 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_iid_dn, tvb, offset, str_len, ENC_ASCII); |
903 | 0 | offset += str_len; |
904 | 0 | break; |
905 | 1 | default: |
906 | 1 | expert_add_info_format(pinfo, tree, &ei_lisp_unexpected_field, |
907 | 1 | "Unexpected Instance ID AFI (%d), cannot decode", afi); |
908 | 2 | } |
909 | 2 | return offset; |
910 | 2 | } |
911 | | |
912 | | |
913 | | /* |
914 | | * Dissector code for AS Number |
915 | | * |
916 | | * 0 1 2 3 |
917 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
918 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
919 | | * | AFI = 16387 | Rsvd1 | Flags | |
920 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
921 | | * | Type = 3 | Rsvd2 | 4 + n | |
922 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
923 | | * | AS Number | |
924 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
925 | | * | AFI = x | Address ... | |
926 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
927 | | * |
928 | | */ |
929 | | |
930 | | static int |
931 | | // NOLINTNEXTLINE(misc-no-recursion) |
932 | | dissect_lcaf_asn(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, proto_item *tip) |
933 | 0 | { |
934 | 0 | const char *addr; |
935 | 0 | uint16_t afi, addr_len = 0; |
936 | 0 | int str_len; |
937 | | |
938 | | /* AS Number (4 bytes) */ |
939 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_asn, tvb, offset, 4, ENC_BIG_ENDIAN); |
940 | 0 | proto_item_append_text(tip, ": %d", tvb_get_ntohl(tvb, offset)); |
941 | 0 | offset += 4; |
942 | | |
943 | | /* AFI (2 bytes) */ |
944 | 0 | proto_tree_add_item_ret_uint16(tree, hf_lisp_lcaf_asn_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &afi); |
945 | 0 | offset += 2; |
946 | | |
947 | | /* Address */ |
948 | 0 | addr = get_addr_str(tvb, pinfo, offset, afi, &addr_len); |
949 | 0 | if (addr && afi) |
950 | 0 | proto_item_append_text(tip, ", Address: %s", addr); |
951 | |
|
952 | 0 | switch (afi) { |
953 | 0 | case AFNUM_RESERVED_0: |
954 | 0 | break; |
955 | 0 | case AFNUM_IP: |
956 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_asn_ipv4, |
957 | 0 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
958 | 0 | offset += INET_ADDRLEN; |
959 | 0 | break; |
960 | 0 | case AFNUM_IP6: |
961 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_asn_ipv6, |
962 | 0 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
963 | 0 | offset += INET6_ADDRLEN; |
964 | 0 | break; |
965 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
966 | 0 | offset = dissect_lcaf(tvb, pinfo, tree, offset, NULL); |
967 | 0 | break; |
968 | 0 | case AFNUM_802: |
969 | 0 | case AFNUM_48_BIT_MAC: |
970 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_asn_mac, |
971 | 0 | tvb, offset, EUI48_ADDRLEN, ENC_NA); |
972 | 0 | offset += EUI48_ADDRLEN; |
973 | 0 | break; |
974 | 0 | case AFNUM_DISTINGUISHED_NAME: |
975 | 0 | str_len = tvb_strsize(tvb, offset); |
976 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_asn_dn, tvb, offset, str_len, ENC_ASCII); |
977 | 0 | offset += str_len; |
978 | 0 | break; |
979 | 0 | default: |
980 | 0 | expert_add_info_format(pinfo, tree, &ei_lisp_unexpected_field, |
981 | 0 | "Unexpected Instance ID AFI (%d), cannot decode", afi); |
982 | 0 | } |
983 | 0 | return offset; |
984 | 0 | } |
985 | | |
986 | | |
987 | | /* |
988 | | * Dissector code for Geo Coordinates LCAF |
989 | | * |
990 | | * 0 1 2 3 |
991 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
992 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
993 | | * | AFI = 16387 | Rsvd1 | Flags | |
994 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
995 | | * | Type = 5 | Rsvd2 | 12 + n | |
996 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
997 | | * |N| Latitude Degrees | Minutes | Seconds | |
998 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
999 | | * |E| Longitude Degrees | Minutes | Seconds | |
1000 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1001 | | * | Altitude | |
1002 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1003 | | * | AFI = x | Address ... | |
1004 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1005 | | * |
1006 | | */ |
1007 | | |
1008 | | static int |
1009 | | // NOLINTNEXTLINE(misc-no-recursion) |
1010 | | dissect_lcaf_geo(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, proto_item *tir) |
1011 | 0 | { |
1012 | 0 | uint16_t addr_len = 0; |
1013 | 0 | bool north, east; |
1014 | 0 | uint16_t deg; |
1015 | 0 | uint8_t min, sec; |
1016 | 0 | uint32_t alt; |
1017 | 0 | uint16_t afi; |
1018 | 0 | int str_len; |
1019 | 0 | const char *ip_address; |
1020 | 0 | const uint16_t mask = 0x7FFF; /* prepare mask for N or E bit */ |
1021 | 0 | proto_item *ti_lat, *ti_lon, *ti_alt; |
1022 | 0 | proto_tree *lat_tree, *lon_tree; |
1023 | | |
1024 | | /* PROCESS LATITUDE */ |
1025 | |
|
1026 | 0 | ti_lat = proto_tree_add_item(tree, hf_lisp_lcaf_geo_lat, tvb, offset, 4, ENC_NA); |
1027 | 0 | lat_tree = proto_item_add_subtree(ti_lat, ett_lisp_lcaf_geo_lat); |
1028 | | |
1029 | | /* Hemisphere and degrees (2 bytes) */ |
1030 | 0 | proto_tree_add_item(lat_tree, hf_lisp_lcaf_geo_lat_hemisphere, tvb, offset, 2, ENC_BIG_ENDIAN); |
1031 | 0 | proto_tree_add_item(lat_tree, hf_lisp_lcaf_geo_lat_deg, tvb, offset, 2, ENC_BIG_ENDIAN); |
1032 | 0 | deg = tvb_get_ntohs(tvb, offset); |
1033 | 0 | north = deg >> 15; |
1034 | 0 | deg &= mask; |
1035 | 0 | if (deg > 90) |
1036 | 0 | expert_add_info_format(pinfo, tree, &ei_lisp_invalid_field, |
1037 | 0 | "Invalid latitude degrees value (%d)", deg); |
1038 | 0 | offset += 2; |
1039 | | |
1040 | | /* Minutes (1 byte) */ |
1041 | 0 | proto_tree_add_item_ret_uint8(lat_tree, hf_lisp_lcaf_geo_lat_min, tvb, offset, 1, ENC_BIG_ENDIAN, &min); |
1042 | 0 | if (min > 60) |
1043 | 0 | expert_add_info_format(pinfo, tree, &ei_lisp_invalid_field, |
1044 | 0 | "Invalid latitude minutes value (%d)", min); |
1045 | 0 | offset += 1; |
1046 | | |
1047 | | /* Seconds (1 byte) */ |
1048 | 0 | proto_tree_add_item_ret_uint8(lat_tree, hf_lisp_lcaf_geo_lat_sec, tvb, offset, 1, ENC_BIG_ENDIAN, &sec); |
1049 | 0 | if (sec > 60) |
1050 | 0 | expert_add_info_format(pinfo, tree, &ei_lisp_invalid_field, |
1051 | 0 | "Invalid latitude seconds value (%d)", min); |
1052 | 0 | offset += 1; |
1053 | |
|
1054 | 0 | proto_item_append_text(ti_lat, ": %s %d" UTF8_DEGREE_SIGN "%d' %d\"", |
1055 | 0 | val_to_str_const(north, lat_typevals, ""), deg, min, sec); |
1056 | 0 | proto_item_append_text(tir, ": (%s%d" UTF8_DEGREE_SIGN "%d'%d\"", |
1057 | 0 | val_to_str_const(north, lat_typevals, ""), deg, min, sec); |
1058 | | |
1059 | | /* PROCESS LONGITUDE */ |
1060 | |
|
1061 | 0 | ti_lon = proto_tree_add_item(tree, hf_lisp_lcaf_geo_lon, tvb, offset, 4, ENC_NA); |
1062 | 0 | lon_tree = proto_item_add_subtree(ti_lon, ett_lisp_lcaf_geo_lon); |
1063 | | |
1064 | | /* Hemisphere and degrees (2 bytes) */ |
1065 | 0 | proto_tree_add_item(lon_tree, hf_lisp_lcaf_geo_lon_hemisphere, tvb, offset, 2, ENC_BIG_ENDIAN); |
1066 | 0 | proto_tree_add_item(lon_tree, hf_lisp_lcaf_geo_lon_deg, tvb, offset, 2, ENC_BIG_ENDIAN); |
1067 | 0 | deg = tvb_get_ntohs(tvb, offset); |
1068 | 0 | east = deg >> 15; |
1069 | 0 | deg &= mask; |
1070 | 0 | if (deg > 180) |
1071 | 0 | expert_add_info_format(pinfo, tree, &ei_lisp_invalid_field, |
1072 | 0 | "Invalid longitude degrees value (%d)", deg); |
1073 | 0 | offset += 2; |
1074 | | |
1075 | | /* Minutes (1 byte) */ |
1076 | 0 | proto_tree_add_item_ret_uint8(lon_tree, hf_lisp_lcaf_geo_lon_min, tvb, offset, 1, ENC_BIG_ENDIAN, &min); |
1077 | 0 | if (min > 60) |
1078 | 0 | expert_add_info_format(pinfo, tree, &ei_lisp_invalid_field, |
1079 | 0 | "Invalid longitude minutes value (%d)", min); |
1080 | 0 | offset += 1; |
1081 | | |
1082 | | /* Seconds (1 byte) */ |
1083 | 0 | proto_tree_add_item_ret_uint8(lon_tree, hf_lisp_lcaf_geo_lon_sec, tvb, offset, 1, ENC_BIG_ENDIAN, &sec); |
1084 | 0 | if (sec > 60) |
1085 | 0 | expert_add_info_format(pinfo, tree, &ei_lisp_invalid_field, |
1086 | 0 | "Invalid longitude seconds value (%d)", min); |
1087 | 0 | offset += 1; |
1088 | |
|
1089 | 0 | proto_item_append_text(ti_lon, ": %s %d" UTF8_DEGREE_SIGN " %d' %d\"", |
1090 | 0 | val_to_str_const(east, lon_typevals, ""), deg, min, sec); |
1091 | 0 | proto_item_append_text(tir, ", %s%d" UTF8_DEGREE_SIGN "%d'%d\")", |
1092 | 0 | val_to_str_const(east, lon_typevals, ""), deg, min, sec); |
1093 | | |
1094 | | /* PROCESS ALTITUDE */ |
1095 | 0 | alt = tvb_get_ntohl(tvb, offset); |
1096 | 0 | ti_alt = proto_tree_add_item(tree, hf_lisp_lcaf_geo_alt, tvb, offset, 4, ENC_NA); |
1097 | | /* if altitude equals 0x7fffffff then no altitude information encoded */ |
1098 | 0 | if (alt == 0x7fffffff) { |
1099 | 0 | proto_item_append_text(ti_alt, ": no value encoded"); |
1100 | 0 | } else { |
1101 | 0 | proto_item_append_text(ti_alt, ": %d m", alt); |
1102 | 0 | proto_item_append_text(tir, ", Altitude: %d m", alt); |
1103 | 0 | } |
1104 | 0 | offset += 4; |
1105 | | |
1106 | | /* PROCESS ADDRESS */ |
1107 | | |
1108 | | /* AFI (2 bytes) */ |
1109 | 0 | proto_tree_add_item_ret_uint16(tree, hf_lisp_lcaf_geo_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &afi); |
1110 | 0 | offset += 2; |
1111 | |
|
1112 | 0 | ip_address = get_addr_str(tvb, pinfo, offset, afi, &addr_len); |
1113 | 0 | if (ip_address && afi) |
1114 | 0 | proto_item_append_text(tir, ", Address: %s", ip_address); |
1115 | |
|
1116 | 0 | switch (afi) { |
1117 | 0 | case AFNUM_RESERVED_0: |
1118 | 0 | break; |
1119 | 0 | case AFNUM_IP: |
1120 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_geo_ipv4, |
1121 | 0 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
1122 | 0 | offset += INET_ADDRLEN; |
1123 | 0 | break; |
1124 | 0 | case AFNUM_IP6: |
1125 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_geo_ipv6, |
1126 | 0 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
1127 | 0 | offset += INET6_ADDRLEN; |
1128 | 0 | break; |
1129 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
1130 | 0 | offset = dissect_lcaf(tvb, pinfo, tree, offset, NULL); |
1131 | 0 | break; |
1132 | 0 | case AFNUM_802: |
1133 | 0 | case AFNUM_48_BIT_MAC: |
1134 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_geo_mac, |
1135 | 0 | tvb, offset, EUI48_ADDRLEN, ENC_NA); |
1136 | 0 | offset += EUI48_ADDRLEN; |
1137 | 0 | break; |
1138 | 0 | case AFNUM_DISTINGUISHED_NAME: |
1139 | 0 | str_len = tvb_strsize(tvb, offset); |
1140 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_geo_dn, tvb, offset, str_len, ENC_ASCII); |
1141 | 0 | offset += str_len; |
1142 | 0 | break; |
1143 | 0 | default: |
1144 | 0 | expert_add_info_format(pinfo, tree, &ei_lisp_unexpected_field, |
1145 | 0 | "Unexpected Geo Coordinates AFI (%d), cannot decode", afi); |
1146 | 0 | } |
1147 | 0 | return offset; |
1148 | 0 | } |
1149 | | |
1150 | | |
1151 | | /* |
1152 | | * Dissector code for NAT-Traversal |
1153 | | * |
1154 | | * 0 1 2 3 |
1155 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
1156 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1157 | | * | AFI = 16387 | Rsvd1 | Flags | |
1158 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1159 | | * | Type = 7 | Rsvd2 | 4 + n | |
1160 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1161 | | * | MS UDP Port Number | ETR UDP Port Number | |
1162 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1163 | | * | AFI = x | Global ETR RLOC Address ... | |
1164 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1165 | | * | AFI = x | MS RLOC Address ... | |
1166 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1167 | | * | AFI = x | Private ETR RLOC Address ... | |
1168 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1169 | | * | AFI = x | RTR RLOC Address 1 ... | |
1170 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1171 | | * | AFI = x | RTR RLOC Address n ... | |
1172 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1173 | | * |
1174 | | */ |
1175 | | |
1176 | | static int |
1177 | | // NOLINTNEXTLINE(misc-no-recursion) |
1178 | | dissect_lcaf_natt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, |
1179 | | int offset, uint16_t length) |
1180 | 35 | { |
1181 | 35 | int i; |
1182 | 35 | int len; |
1183 | 35 | int remaining = length; |
1184 | 35 | const char *global_etr = " of Global ETR: %s"; |
1185 | 35 | const char *ms = " of MS: %s"; |
1186 | 35 | const char *private_etr = " of Private ETR: %s"; |
1187 | 35 | const char *rtr = " of RTR %d: %s"; |
1188 | | |
1189 | 35 | remaining -= 4; |
1190 | | |
1191 | 35 | proto_tree_add_item(tree, hf_lisp_lcaf_natt_msport, tvb, offset, 2, ENC_BIG_ENDIAN); |
1192 | 35 | offset += 2; |
1193 | 35 | remaining -= 2; |
1194 | 35 | proto_tree_add_item(tree, hf_lisp_lcaf_natt_etrport, tvb, offset, 2, ENC_BIG_ENDIAN); |
1195 | 35 | offset += 2; |
1196 | 35 | remaining -= 2; |
1197 | | |
1198 | 35 | len = dissect_lcaf_natt_rloc(tvb, pinfo, tree, offset, global_etr, 0); |
1199 | 35 | offset += len; |
1200 | 35 | remaining -= len; |
1201 | | |
1202 | 35 | len = dissect_lcaf_natt_rloc(tvb, pinfo, tree, offset, ms, 0); |
1203 | 35 | offset += len; |
1204 | 35 | remaining -= len; |
1205 | | |
1206 | 35 | len = dissect_lcaf_natt_rloc(tvb, pinfo, tree, offset, private_etr, 0); |
1207 | 35 | offset += len; |
1208 | 35 | remaining -= len; |
1209 | | |
1210 | 35 | i = 1; |
1211 | 6.77k | while (remaining > 0) { |
1212 | 6.74k | len = dissect_lcaf_natt_rloc(tvb, pinfo, tree, offset, rtr, i); |
1213 | 6.74k | offset += len; |
1214 | 6.74k | remaining -= len; |
1215 | 6.74k | i++; |
1216 | 6.74k | } |
1217 | | |
1218 | 35 | return offset; |
1219 | 35 | } |
1220 | | |
1221 | | |
1222 | | /* |
1223 | | * Dissector code for Nonce Locator |
1224 | | * |
1225 | | * 0 1 2 3 |
1226 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
1227 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1228 | | * | AFI = 16387 | Rsvd1 | Flags | |
1229 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1230 | | * | Type = 8 | Rsvd2 | 4 + n | |
1231 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1232 | | * | Reserved | Nonce | |
1233 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1234 | | * | AFI = x | Address ... | |
1235 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1236 | | * |
1237 | | */ |
1238 | | |
1239 | | static int |
1240 | | // NOLINTNEXTLINE(misc-no-recursion) |
1241 | | dissect_lcaf_nonce_loc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, proto_item *tip) |
1242 | 1 | { |
1243 | 1 | const char *addr; |
1244 | 1 | uint16_t afi, addr_len = 0; |
1245 | 1 | int str_len; |
1246 | | |
1247 | | /* Reserved (1 byte) */ |
1248 | 1 | proto_tree_add_item(tree, hf_lisp_lcaf_nonce_loc_res, tvb, offset, 1, ENC_BIG_ENDIAN); |
1249 | 1 | proto_item_append_text(tip, ": %d", tvb_get_ntohl(tvb, offset)); |
1250 | 1 | offset += 1; |
1251 | | |
1252 | | /* Nonce (3 bytes) */ |
1253 | 1 | proto_tree_add_item(tree, hf_lisp_lcaf_nonce_loc, tvb, offset, 3, ENC_BIG_ENDIAN); |
1254 | 1 | proto_item_append_text(tip, ": %d", tvb_get_ntohl(tvb, offset)); |
1255 | 1 | offset += 3; |
1256 | | |
1257 | | /* AFI (2 bytes) */ |
1258 | 1 | proto_tree_add_item_ret_uint16(tree, hf_lisp_lcaf_nonce_loc_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &afi); |
1259 | 1 | offset += 2; |
1260 | | |
1261 | | /* Address */ |
1262 | 1 | addr = get_addr_str(tvb, pinfo, offset, afi, &addr_len); |
1263 | 1 | if (addr && afi) |
1264 | 0 | proto_item_append_text(tip, ", Address: %s", addr); |
1265 | | |
1266 | 1 | switch (afi) { |
1267 | 0 | case AFNUM_RESERVED_0: |
1268 | 0 | break; |
1269 | 0 | case AFNUM_IP: |
1270 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_nonce_loc_ipv4, |
1271 | 0 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
1272 | 0 | offset += INET_ADDRLEN; |
1273 | 0 | break; |
1274 | 0 | case AFNUM_IP6: |
1275 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_nonce_loc_ipv6, |
1276 | 0 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
1277 | 0 | offset += INET6_ADDRLEN; |
1278 | 0 | break; |
1279 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
1280 | 0 | offset = dissect_lcaf(tvb, pinfo, tree, offset, NULL); |
1281 | 0 | break; |
1282 | 0 | case AFNUM_802: |
1283 | 0 | case AFNUM_48_BIT_MAC: |
1284 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_nonce_loc_mac, |
1285 | 0 | tvb, offset, EUI48_ADDRLEN, ENC_NA); |
1286 | 0 | offset += EUI48_ADDRLEN; |
1287 | 0 | break; |
1288 | 0 | case AFNUM_DISTINGUISHED_NAME: |
1289 | 0 | str_len = tvb_strsize(tvb, offset); |
1290 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_nonce_loc_dn, tvb, offset, str_len, ENC_ASCII); |
1291 | 0 | offset += str_len; |
1292 | 0 | break; |
1293 | 1 | default: |
1294 | 1 | expert_add_info_format(pinfo, tree, &ei_lisp_unexpected_field, |
1295 | 1 | "Unexpected Instance ID AFI (%d), cannot decode", afi); |
1296 | 1 | } |
1297 | 1 | return offset; |
1298 | 1 | } |
1299 | | |
1300 | | |
1301 | | /* |
1302 | | * Dissector code for Multicast Group Membership Information |
1303 | | * |
1304 | | * 0 1 2 3 |
1305 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
1306 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1307 | | * | AFI = 16387 | Rsvd1 | Flags | |
1308 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1309 | | * | Type = 9 | Rsvd2 |R|L|J| 8 + n | |
1310 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1311 | | * | Instance-ID | |
1312 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1313 | | * | Reserved | Source MaskLen| Group MaskLen | |
1314 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1315 | | * | AFI = x | Source/Subnet Address ... | |
1316 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1317 | | * | AFI = x | Group Address ... | |
1318 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1319 | | * |
1320 | | */ |
1321 | | |
1322 | | static int |
1323 | | // NOLINTNEXTLINE(misc-no-recursion) |
1324 | | dissect_lcaf_mcast_info(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, |
1325 | | int offset, proto_item *tir) |
1326 | 0 | { |
1327 | 0 | uint8_t src_masklen, grp_masklen; |
1328 | 0 | uint16_t afi, addr_len = 0; |
1329 | 0 | uint32_t iid; |
1330 | 0 | const char *src_str, *grp_str; |
1331 | 0 | proto_item *ti_src, *ti_grp; |
1332 | 0 | proto_tree *src_tree, *grp_tree; |
1333 | | |
1334 | | /* Instance ID (4 bytes) */ |
1335 | 0 | proto_tree_add_item_ret_uint(tree, hf_lisp_lcaf_mcinfo_iid, tvb, offset, 4, ENC_BIG_ENDIAN, &iid); |
1336 | 0 | offset += 4; |
1337 | | |
1338 | | /* Reserved (2 bytes) */ |
1339 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_mcinfo_res, tvb, offset, 2, ENC_BIG_ENDIAN); |
1340 | 0 | offset += 2; |
1341 | | |
1342 | | /* Source Mask Length (1 byte) */ |
1343 | 0 | proto_tree_add_item_ret_uint8(tree, hf_lisp_lcaf_mcinfo_src_masklen, tvb, offset, 1, ENC_BIG_ENDIAN, &src_masklen); |
1344 | 0 | offset += 1; |
1345 | | |
1346 | | /* Group Mask Length (1 byte) */ |
1347 | 0 | proto_tree_add_item_ret_uint8(tree, hf_lisp_lcaf_mcinfo_grp_masklen, tvb, offset, 1, ENC_BIG_ENDIAN, &grp_masklen); |
1348 | 0 | offset += 1; |
1349 | |
|
1350 | 0 | ti_src = proto_tree_add_item(tree, hf_lisp_lcaf_mcinfo_src, tvb, offset, 2, ENC_NA); |
1351 | 0 | src_tree = proto_item_add_subtree(ti_src, ett_lisp_lcaf_mcinfo_src); |
1352 | | |
1353 | | /* Source/Subnet AFI (2 bytes) */ |
1354 | 0 | proto_tree_add_item_ret_uint16(src_tree, hf_lisp_lcaf_mcinfo_src_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &afi); |
1355 | 0 | offset += 2; |
1356 | | |
1357 | | /* Source/Subnet Address */ |
1358 | 0 | src_str = get_addr_str(tvb, pinfo, offset, afi, &addr_len); |
1359 | |
|
1360 | 0 | switch (afi) { |
1361 | 0 | case AFNUM_IP: |
1362 | 0 | proto_tree_add_item(src_tree, hf_lisp_lcaf_mcinfo_src_ipv4, |
1363 | 0 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
1364 | 0 | offset += INET_ADDRLEN; |
1365 | 0 | break; |
1366 | 0 | case AFNUM_IP6: |
1367 | 0 | proto_tree_add_item(src_tree, hf_lisp_lcaf_mcinfo_src_ipv6, |
1368 | 0 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
1369 | 0 | offset += INET6_ADDRLEN; |
1370 | 0 | break; |
1371 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
1372 | 0 | offset = dissect_lcaf(tvb, pinfo, src_tree, offset, NULL); |
1373 | 0 | break; |
1374 | 0 | default: |
1375 | 0 | expert_add_info_format(pinfo, src_tree, &ei_lisp_unexpected_field, |
1376 | 0 | "Unexpected Source Prefix AFI (%d), cannot decode", afi); |
1377 | 0 | } |
1378 | | |
1379 | 0 | proto_item_append_text(ti_src, ": %s", src_str); |
1380 | 0 | proto_item_set_len(ti_src, 2 + addr_len); |
1381 | |
|
1382 | 0 | ti_grp = proto_tree_add_item(tree, hf_lisp_lcaf_mcinfo_grp, tvb, offset, 2, ENC_NA); |
1383 | 0 | grp_tree = proto_item_add_subtree(ti_grp, ett_lisp_lcaf_mcinfo_grp); |
1384 | | |
1385 | | /* Group AFI (2 bytes) */ |
1386 | 0 | proto_tree_add_item_ret_uint16(grp_tree, hf_lisp_lcaf_mcinfo_grp_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &afi); |
1387 | 0 | offset += 2; |
1388 | | |
1389 | | /* Group Address */ |
1390 | 0 | grp_str = get_addr_str(tvb, pinfo, offset, afi, &addr_len); |
1391 | |
|
1392 | 0 | switch (afi) { |
1393 | 0 | case AFNUM_IP: |
1394 | 0 | proto_tree_add_item(grp_tree, hf_lisp_lcaf_mcinfo_grp_ipv4, |
1395 | 0 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
1396 | 0 | offset += INET_ADDRLEN; |
1397 | 0 | break; |
1398 | 0 | case AFNUM_IP6: |
1399 | 0 | proto_tree_add_item(grp_tree, hf_lisp_lcaf_mcinfo_grp_ipv6, |
1400 | 0 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
1401 | 0 | offset += INET6_ADDRLEN; |
1402 | 0 | break; |
1403 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
1404 | 0 | offset = dissect_lcaf(tvb, pinfo, grp_tree, offset, NULL); |
1405 | 0 | break; |
1406 | 0 | default: |
1407 | 0 | expert_add_info_format(pinfo, grp_tree, &ei_lisp_unexpected_field, |
1408 | 0 | "Unexpected Destination Prefix AFI (%d), cannot decode", afi); |
1409 | 0 | } |
1410 | | |
1411 | 0 | proto_item_append_text(ti_grp, ": %s", grp_str); |
1412 | 0 | proto_item_set_len(ti_grp, 2 + addr_len); |
1413 | |
|
1414 | 0 | proto_item_append_text(tir, " ([%d], %s/%d, %s/%d)", iid, src_str, src_masklen, grp_str, grp_masklen); |
1415 | 0 | return offset; |
1416 | 0 | } |
1417 | | |
1418 | | |
1419 | | /* |
1420 | | * Dissector code for Explicit Locator Path |
1421 | | * |
1422 | | * 0 1 2 3 |
1423 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
1424 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1425 | | * | AFI = 16387 | Rsvd1 | Flags | |
1426 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1427 | | * | Type = 10 | Rsvd2 | n | |
1428 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1429 | | * | Rsvd3 |L|P|S| AFI = x | |
1430 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1431 | | * | Reencap Hop 1 ... | |
1432 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1433 | | * | Rsvd3 |L|P|S| AFI = x | |
1434 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1435 | | * | Reencap Hop k ... | |
1436 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1437 | | * |
1438 | | * |
1439 | | */ |
1440 | | |
1441 | | static int |
1442 | | // NOLINTNEXTLINE(misc-no-recursion) |
1443 | | dissect_lcaf_elp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, |
1444 | | int offset, uint16_t length, proto_item *tir) |
1445 | 27 | { |
1446 | 27 | int len; |
1447 | 27 | int remaining = length; |
1448 | 27 | int i = 1; |
1449 | | |
1450 | 591 | while (remaining > 0) { |
1451 | 564 | len = dissect_lcaf_elp_hop(tvb, pinfo, tree, offset, i, tir); |
1452 | 564 | offset += len; |
1453 | 564 | remaining -= len; |
1454 | 564 | i++; |
1455 | 564 | } |
1456 | | |
1457 | 27 | return offset; |
1458 | 27 | } |
1459 | | |
1460 | | |
1461 | | /* |
1462 | | * Dissector code for Source/Destination 2-Tuple Lookups |
1463 | | * |
1464 | | * 0 1 2 3 |
1465 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
1466 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1467 | | * | AFI = 16387 | Rsvd1 | Flags | |
1468 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1469 | | * | Type = 12 | Rsvd2 | 4 + n | |
1470 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1471 | | * | Reserved | Source-ML | Dest-ML | |
1472 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1473 | | * | AFI = x | Source-Prefix ... | |
1474 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1475 | | * | AFI = x | Destination-Prefix ... | |
1476 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1477 | | * |
1478 | | */ |
1479 | | |
1480 | | static int |
1481 | | // NOLINTNEXTLINE(misc-no-recursion) |
1482 | | dissect_lcaf_src_dst_key(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, |
1483 | | int offset, proto_item *tir) |
1484 | 0 | { |
1485 | 0 | uint8_t src_masklen, dst_masklen; |
1486 | 0 | uint16_t afi, addr_len = 0; |
1487 | 0 | const char *src_str, *dst_str; |
1488 | 0 | proto_item *ti_src, *ti_dst; |
1489 | 0 | proto_tree *src_tree, *dst_tree; |
1490 | | |
1491 | | /* Reserved (2 bytes) */ |
1492 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_srcdst_res, tvb, offset, 2, ENC_BIG_ENDIAN); |
1493 | 0 | offset += 2; |
1494 | | |
1495 | | /* Source Prefix Mask Length (1 byte) */ |
1496 | 0 | proto_tree_add_item_ret_uint8(tree, hf_lisp_lcaf_srcdst_src_masklen, tvb, offset, 1, ENC_BIG_ENDIAN, &src_masklen); |
1497 | 0 | offset += 1; |
1498 | | |
1499 | | /* Destination Prefix Mask Length (1 byte) */ |
1500 | 0 | proto_tree_add_item_ret_uint8(tree, hf_lisp_lcaf_srcdst_dst_masklen, tvb, offset, 1, ENC_BIG_ENDIAN, &dst_masklen); |
1501 | 0 | offset += 1; |
1502 | |
|
1503 | 0 | ti_src = proto_tree_add_item(tree, hf_lisp_lcaf_srcdst_src, tvb, offset, 2, ENC_NA); |
1504 | 0 | src_tree = proto_item_add_subtree(ti_src, ett_lisp_lcaf_srcdst_src); |
1505 | | |
1506 | | /* Source Prefix AFI (2 bytes) */ |
1507 | 0 | proto_tree_add_item_ret_uint16(src_tree, hf_lisp_lcaf_srcdst_src_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &afi); |
1508 | 0 | offset += 2; |
1509 | | |
1510 | | /* Source Prefix */ |
1511 | 0 | src_str = get_addr_str(tvb, pinfo, offset, afi, &addr_len); |
1512 | |
|
1513 | 0 | switch (afi) { |
1514 | 0 | case AFNUM_IP: |
1515 | 0 | proto_tree_add_item(src_tree, hf_lisp_lcaf_srcdst_src_ipv4, |
1516 | 0 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
1517 | 0 | offset += INET_ADDRLEN; |
1518 | 0 | break; |
1519 | 0 | case AFNUM_IP6: |
1520 | 0 | proto_tree_add_item(src_tree, hf_lisp_lcaf_srcdst_src_ipv6, |
1521 | 0 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
1522 | 0 | offset += INET6_ADDRLEN; |
1523 | 0 | break; |
1524 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
1525 | 0 | offset = dissect_lcaf(tvb, pinfo, src_tree, offset, NULL); |
1526 | 0 | break; |
1527 | 0 | case AFNUM_802: |
1528 | 0 | case AFNUM_48_BIT_MAC: |
1529 | 0 | proto_tree_add_item(src_tree, hf_lisp_lcaf_srcdst_src_mac, |
1530 | 0 | tvb, offset, EUI48_ADDRLEN, ENC_NA); |
1531 | 0 | offset += EUI48_ADDRLEN; |
1532 | 0 | break; |
1533 | 0 | default: |
1534 | 0 | expert_add_info_format(pinfo, src_tree, &ei_lisp_unexpected_field, |
1535 | 0 | "Unexpected Source Prefix AFI (%d), cannot decode", afi); |
1536 | 0 | } |
1537 | | |
1538 | 0 | proto_item_append_text(ti_src, ": %s", src_str); |
1539 | 0 | proto_item_set_len(ti_src, 2 + addr_len); |
1540 | |
|
1541 | 0 | ti_dst = proto_tree_add_item(tree, hf_lisp_lcaf_srcdst_dst, tvb, offset, 2, ENC_NA); |
1542 | 0 | dst_tree = proto_item_add_subtree(ti_dst, ett_lisp_lcaf_srcdst_dst); |
1543 | | |
1544 | | /* Destination Prefix AFI (2 bytes) */ |
1545 | 0 | proto_tree_add_item_ret_uint16(dst_tree, hf_lisp_lcaf_srcdst_dst_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &afi); |
1546 | 0 | offset += 2; |
1547 | | |
1548 | | /* Destination Prefix */ |
1549 | 0 | dst_str = get_addr_str(tvb, pinfo, offset, afi, &addr_len); |
1550 | |
|
1551 | 0 | switch (afi) { |
1552 | 0 | case AFNUM_IP: |
1553 | 0 | proto_tree_add_item(dst_tree, hf_lisp_lcaf_srcdst_dst_ipv4, |
1554 | 0 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
1555 | 0 | offset += INET_ADDRLEN; |
1556 | 0 | break; |
1557 | 0 | case AFNUM_IP6: |
1558 | 0 | proto_tree_add_item(dst_tree, hf_lisp_lcaf_srcdst_dst_ipv6, |
1559 | 0 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
1560 | 0 | offset += INET6_ADDRLEN; |
1561 | 0 | break; |
1562 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
1563 | 0 | offset = dissect_lcaf(tvb, pinfo, dst_tree, offset, NULL); |
1564 | 0 | break; |
1565 | 0 | case AFNUM_802: |
1566 | 0 | case AFNUM_48_BIT_MAC: |
1567 | 0 | proto_tree_add_item(dst_tree, hf_lisp_lcaf_srcdst_dst_mac, |
1568 | 0 | tvb, offset, EUI48_ADDRLEN, ENC_NA); |
1569 | 0 | offset += EUI48_ADDRLEN; |
1570 | 0 | break; |
1571 | 0 | default: |
1572 | 0 | expert_add_info_format(pinfo, dst_tree, &ei_lisp_unexpected_field, |
1573 | 0 | "Unexpected Destination Prefix AFI (%d), cannot decode", afi); |
1574 | 0 | } |
1575 | | |
1576 | 0 | proto_item_append_text(ti_dst, ": %s", dst_str); |
1577 | 0 | proto_item_set_len(ti_dst, 2 + addr_len); |
1578 | |
|
1579 | 0 | proto_item_append_text(tir, " (%s/%d, %s/%d)", src_str, src_masklen, dst_str, dst_masklen); |
1580 | 0 | return offset; |
1581 | 0 | } |
1582 | | |
1583 | | |
1584 | | /* |
1585 | | * Dissector code for Replication List Entries for Multicast Forwarding |
1586 | | * |
1587 | | * 0 1 2 3 |
1588 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
1589 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1590 | | * | AFI = 16387 | Rsvd1 | Flags | |
1591 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1592 | | * | Type = 13 | Rsvd2 | 4 + n | |
1593 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1594 | | * | Rsvd3 | Rsvd4 | Level Value | |
1595 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1596 | | * | AFI = x | RTR/ETR #1 ... | |
1597 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1598 | | * | Rsvd3 | Rsvd4 | Level Value | |
1599 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1600 | | * | AFI = x | RTR/ETR #n ... | |
1601 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1602 | | * |
1603 | | */ |
1604 | | |
1605 | | static int |
1606 | | // NOLINTNEXTLINE(misc-no-recursion) |
1607 | | dissect_lcaf_rle(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, |
1608 | | int offset, uint16_t length, proto_item *tir) |
1609 | 6 | { |
1610 | 6 | int len; |
1611 | 6 | int remaining = length; |
1612 | 6 | int i = 1; |
1613 | | |
1614 | 60 | while (remaining > 0) { |
1615 | 54 | len = dissect_lcaf_rle_entry(tvb, pinfo, tree, offset, i, tir); |
1616 | 54 | offset += len; |
1617 | 54 | remaining -= len; |
1618 | 54 | i++; |
1619 | 54 | } |
1620 | | |
1621 | 6 | return offset; |
1622 | 6 | } |
1623 | | |
1624 | | |
1625 | | /* |
1626 | | * Dissector code for Key/Value Address Pairs |
1627 | | * |
1628 | | * 0 1 2 3 |
1629 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
1630 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1631 | | * | AFI = 16387 | Rsvd1 | Flags | |
1632 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1633 | | * | Type = 15 | Rsvd2 | n | |
1634 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1635 | | * | AFI = x | Address as Key ... | |
1636 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1637 | | * | AFI = x | Address as Value ... | |
1638 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1639 | | * |
1640 | | */ |
1641 | | |
1642 | | static int |
1643 | | // NOLINTNEXTLINE(misc-no-recursion) |
1644 | | dissect_lcaf_kv_addr_pair(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, |
1645 | | int offset) |
1646 | 0 | { |
1647 | 0 | uint16_t afi, addr_len = 0; |
1648 | 0 | const char *key_str, *value_str; |
1649 | 0 | proto_item *ti_key, *ti_value; |
1650 | 0 | proto_tree *key_tree, *value_tree; |
1651 | 0 | int str_len; |
1652 | |
|
1653 | 0 | ti_key = proto_tree_add_item(tree, hf_lisp_lcaf_kv_key, tvb, offset, 2, ENC_NA); |
1654 | 0 | key_tree = proto_item_add_subtree(ti_key, ett_lisp_lcaf_kv_key); |
1655 | | |
1656 | | /* Key AFI (2 bytes) */ |
1657 | 0 | proto_tree_add_item_ret_uint16(key_tree, hf_lisp_lcaf_kv_key_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &afi); |
1658 | 0 | offset += 2; |
1659 | | |
1660 | | /* Key */ |
1661 | 0 | key_str = get_addr_str(tvb, pinfo, offset, afi, &addr_len); |
1662 | |
|
1663 | 0 | switch (afi) { |
1664 | 0 | case AFNUM_IP: |
1665 | 0 | proto_tree_add_item(key_tree, hf_lisp_lcaf_kv_key_ipv4, |
1666 | 0 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
1667 | 0 | offset += INET_ADDRLEN; |
1668 | 0 | break; |
1669 | 0 | case AFNUM_IP6: |
1670 | 0 | proto_tree_add_item(key_tree, hf_lisp_lcaf_kv_key_ipv6, |
1671 | 0 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
1672 | 0 | offset += INET6_ADDRLEN; |
1673 | 0 | break; |
1674 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
1675 | 0 | offset = dissect_lcaf(tvb, pinfo, key_tree, offset, NULL); |
1676 | 0 | break; |
1677 | 0 | case AFNUM_802: |
1678 | 0 | case AFNUM_48_BIT_MAC: |
1679 | 0 | proto_tree_add_item(key_tree, hf_lisp_lcaf_kv_key_mac, |
1680 | 0 | tvb, offset, EUI48_ADDRLEN, ENC_NA); |
1681 | 0 | offset += EUI48_ADDRLEN; |
1682 | 0 | break; |
1683 | 0 | case AFNUM_DISTINGUISHED_NAME: |
1684 | 0 | str_len = tvb_strsize(tvb, offset); |
1685 | 0 | proto_tree_add_item(key_tree, hf_lisp_lcaf_kv_key_dn, tvb, offset, str_len, ENC_ASCII); |
1686 | 0 | offset += str_len; |
1687 | 0 | break; |
1688 | 0 | default: |
1689 | 0 | expert_add_info_format(pinfo, key_tree, &ei_lisp_unexpected_field, |
1690 | 0 | "Unexpected Key AFI (%d), cannot decode", afi); |
1691 | 0 | } |
1692 | | |
1693 | 0 | proto_item_append_text(ti_key, ": %s", key_str); |
1694 | 0 | proto_item_set_len(ti_key, 2 + addr_len); |
1695 | |
|
1696 | 0 | ti_value = proto_tree_add_item(tree, hf_lisp_lcaf_kv_value, tvb, offset, 2, ENC_NA); |
1697 | 0 | value_tree = proto_item_add_subtree(ti_value, ett_lisp_lcaf_kv_value); |
1698 | | |
1699 | | /* Value AFI (2 bytes) */ |
1700 | 0 | proto_tree_add_item_ret_uint16(value_tree, hf_lisp_lcaf_kv_value_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &afi); |
1701 | 0 | offset += 2; |
1702 | | |
1703 | | /* Value */ |
1704 | 0 | value_str = get_addr_str(tvb, pinfo, offset, afi, &addr_len); |
1705 | |
|
1706 | 0 | switch (afi) { |
1707 | 0 | case AFNUM_IP: |
1708 | 0 | proto_tree_add_item(value_tree, hf_lisp_lcaf_kv_value_ipv4, |
1709 | 0 | tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
1710 | 0 | offset += INET_ADDRLEN; |
1711 | 0 | break; |
1712 | 0 | case AFNUM_IP6: |
1713 | 0 | proto_tree_add_item(value_tree, hf_lisp_lcaf_kv_value_ipv6, |
1714 | 0 | tvb, offset, INET6_ADDRLEN, ENC_NA); |
1715 | 0 | offset += INET6_ADDRLEN; |
1716 | 0 | break; |
1717 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
1718 | 0 | offset = dissect_lcaf(tvb, pinfo, value_tree, offset, NULL); |
1719 | 0 | break; |
1720 | 0 | case AFNUM_802: |
1721 | 0 | case AFNUM_48_BIT_MAC: |
1722 | 0 | proto_tree_add_item(value_tree, hf_lisp_lcaf_kv_value_mac, |
1723 | 0 | tvb, offset, EUI48_ADDRLEN, ENC_NA); |
1724 | 0 | offset += EUI48_ADDRLEN; |
1725 | 0 | break; |
1726 | 0 | case AFNUM_DISTINGUISHED_NAME: |
1727 | 0 | str_len = tvb_strsize(tvb, offset); |
1728 | 0 | proto_tree_add_item(value_tree, hf_lisp_lcaf_kv_value_dn, tvb, offset, str_len, ENC_ASCII); |
1729 | 0 | offset += str_len; |
1730 | 0 | break; |
1731 | 0 | default: |
1732 | 0 | expert_add_info_format(pinfo, value_tree, &ei_lisp_unexpected_field, |
1733 | 0 | "Unexpected Value AFI (%d), cannot decode", afi); |
1734 | 0 | } |
1735 | | |
1736 | 0 | proto_item_append_text(ti_value, ": %s", value_str); |
1737 | 0 | proto_item_set_len(ti_value, 2 + addr_len); |
1738 | |
|
1739 | 0 | return offset; |
1740 | 0 | } |
1741 | | |
1742 | | |
1743 | | /* |
1744 | | * Dissector code for Vendor Specific LCAF |
1745 | | * |
1746 | | * 0 1 2 3 |
1747 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
1748 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1749 | | * | AFI = 16387 | Rsvd1 | Flags | |
1750 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1751 | | * | Type = 255 | Rsvd2 | Length | |
1752 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1753 | | * | Rsvd3 | Organizationally Unique Identifier (OUI) | |
1754 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1755 | | * | Internal format... | |
1756 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1757 | | * |
1758 | | */ |
1759 | | |
1760 | | static int |
1761 | | dissect_lcaf_vendor(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, |
1762 | | int offset, uint16_t length) |
1763 | 0 | { |
1764 | 0 | int len; |
1765 | 0 | proto_item *ti_vendor; |
1766 | 0 | proto_tree *vendor_tree; |
1767 | | |
1768 | | /* Reserved (1 byte) */ |
1769 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_vendor_res, tvb, offset, 1, ENC_BIG_ENDIAN); |
1770 | 0 | offset += 1; |
1771 | | |
1772 | | /* Organizationally Unique Identifier (3 bytes) */ |
1773 | 0 | proto_tree_add_item(tree, hf_lisp_lcaf_vendor_oui, tvb, offset, 3, ENC_BIG_ENDIAN); |
1774 | 0 | offset += 3; |
1775 | | |
1776 | | /* Vendor Data */ |
1777 | 0 | len = length - 4; |
1778 | 0 | ti_vendor = proto_tree_add_item(tree, hf_lisp_lcaf_vendor_data, tvb, offset, len, ENC_NA); |
1779 | 0 | vendor_tree = proto_item_add_subtree(ti_vendor, ett_lisp_lcaf_vendor); |
1780 | 0 | expert_add_info_format(pinfo, vendor_tree, &ei_lisp_undecoded, |
1781 | 0 | "Look up the vendor's OUI (IEEE 802-2001) and contact them for support on decoding this field"); |
1782 | 0 | offset += len; |
1783 | |
|
1784 | 0 | return offset; |
1785 | 0 | } |
1786 | | |
1787 | | |
1788 | | /* |
1789 | | * Dissector code for LISP Canonical Address Format (LCAF) |
1790 | | * |
1791 | | * 0 1 2 3 |
1792 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
1793 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1794 | | * | AFI = 16387 | Rsvd1 | Flags | |
1795 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1796 | | * | Type | Rsvd2 | Length | |
1797 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1798 | | * |
1799 | | * Type 0: Null Body Type |
1800 | | * Type 1: AFI List Type |
1801 | | * Type 2: Instance ID Type |
1802 | | * Type 3: AS Number Type |
1803 | | * Type 4: Application Data Type |
1804 | | * Type 5: Geo Coordinates Type |
1805 | | * Type 6: Opaque Key Type |
1806 | | * Type 7: NAT-Traversal Type |
1807 | | * Type 8: Nonce Locator Type |
1808 | | * Type 9: Multicast Info Type |
1809 | | * Type 10: Explicit Locator Path Type |
1810 | | * Type 11: Security Key Type |
1811 | | * Type 12: Source/Dest Key Type |
1812 | | * Type 13: Replication List Entry Type |
1813 | | * Type 14: JSON Data Model Type |
1814 | | * Type 15: Key/Value Address Pair Type |
1815 | | * Type 255: Vendor Specific LCAF |
1816 | | * |
1817 | | */ |
1818 | | |
1819 | | int |
1820 | | // NOLINTNEXTLINE(misc-no-recursion) |
1821 | | dissect_lcaf(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, proto_item *tip) |
1822 | 80 | { |
1823 | 80 | uint8_t lcaf_type; |
1824 | 80 | uint16_t len; |
1825 | 80 | proto_item *tir, *ti_header, *ti_flags, *ti; |
1826 | 80 | proto_tree *lcaf_tree, *lcaf_header_tree, *flags_tree; |
1827 | 80 | tvbuff_t *payload_tvb; |
1828 | | |
1829 | 80 | len = tvb_get_ntohs(tvb, offset + 4); |
1830 | | |
1831 | 80 | tir = proto_tree_add_item(tree, hf_lisp_lcaf, tvb, offset, LCAF_HEADER_LEN + len, ENC_NA); |
1832 | 80 | lcaf_tree = proto_item_add_subtree(tir, ett_lisp_lcaf); |
1833 | | |
1834 | 80 | ti_header = proto_tree_add_item(lcaf_tree, hf_lisp_lcaf_header, tvb, offset, LCAF_HEADER_LEN, ENC_NA); |
1835 | 80 | lcaf_header_tree = proto_item_add_subtree(ti_header, ett_lisp_lcaf_header); |
1836 | | |
1837 | | /* Reserved bits (8 bits) */ |
1838 | 80 | proto_tree_add_item(lcaf_header_tree, hf_lisp_lcaf_res1, tvb, offset, 1, ENC_BIG_ENDIAN); |
1839 | 80 | offset += 1; |
1840 | | |
1841 | | /* Flags (8 bits) */ |
1842 | 80 | proto_tree_add_item(lcaf_header_tree, hf_lisp_lcaf_flags, tvb, offset, 1, ENC_BIG_ENDIAN); |
1843 | 80 | offset += 1; |
1844 | | |
1845 | | /* Type (8 bits) */ |
1846 | 80 | proto_tree_add_item_ret_uint8(lcaf_header_tree, hf_lisp_lcaf_type, tvb, offset, 1, ENC_BIG_ENDIAN, &lcaf_type); |
1847 | 80 | proto_item_append_text(tir, ": %s", val_to_str(pinfo->pool, lcaf_type, lcaf_typevals, "Unknown (%d)")); |
1848 | 80 | offset += 1; |
1849 | | |
1850 | 80 | if (lcaf_type == LCAF_MCAST_INFO) { |
1851 | 0 | ti_flags = proto_tree_add_item(lcaf_header_tree, hf_lisp_lcaf_mcinfo_flags, tvb, offset, 1, ENC_BIG_ENDIAN); |
1852 | 0 | flags_tree = proto_item_add_subtree(ti_flags, ett_lisp_lcaf_mcinfo_flags); |
1853 | | |
1854 | | /* Reserved (5 bits) */ |
1855 | 0 | proto_tree_add_item(flags_tree, hf_lisp_lcaf_mcinfo_flags_res, tvb, offset, 1, ENC_BIG_ENDIAN); |
1856 | | |
1857 | | /* Flags (3 bits) */ |
1858 | 0 | proto_tree_add_item(flags_tree, hf_lisp_lcaf_mcinfo_flags_rp, tvb, offset, 1, ENC_NA); |
1859 | 0 | proto_tree_add_item(flags_tree, hf_lisp_lcaf_mcinfo_flags_leave, tvb, offset, 1, ENC_NA); |
1860 | 0 | proto_tree_add_item(flags_tree, hf_lisp_lcaf_mcinfo_flags_join, tvb, offset, 1, ENC_NA); |
1861 | 80 | } else { |
1862 | | /* Reserved (8 bits) */ |
1863 | 80 | proto_tree_add_item(lcaf_header_tree, hf_lisp_lcaf_res2, tvb, offset, 1, ENC_BIG_ENDIAN); |
1864 | 80 | } |
1865 | 80 | offset += 1; |
1866 | | |
1867 | | /* Length (16 bits) */ |
1868 | 80 | proto_tree_add_item(lcaf_header_tree, hf_lisp_lcaf_length, tvb, offset, 2, ENC_BIG_ENDIAN); |
1869 | 80 | offset += 2; |
1870 | | |
1871 | 80 | payload_tvb = tvb_new_subset_length(tvb, 0, offset + len); |
1872 | 80 | ti = (tip) ? tip : tir; |
1873 | | |
1874 | 80 | increment_dissection_depth(pinfo); |
1875 | 80 | switch (lcaf_type) { |
1876 | 1 | case LCAF_NULL: |
1877 | 1 | break; |
1878 | 0 | case LCAF_AFI_LIST: |
1879 | 0 | offset = dissect_lcaf_afi_list(payload_tvb, pinfo, lcaf_tree, offset, len); |
1880 | 0 | break; |
1881 | 2 | case LCAF_IID: |
1882 | 2 | offset = dissect_lcaf_iid(payload_tvb, pinfo, lcaf_tree, offset, ti); |
1883 | 2 | break; |
1884 | 0 | case LCAF_ASN: |
1885 | 0 | offset = dissect_lcaf_asn(payload_tvb, pinfo, lcaf_tree, offset, ti); |
1886 | 0 | break; |
1887 | 0 | case LCAF_GEO: |
1888 | 0 | offset = dissect_lcaf_geo(payload_tvb, pinfo, lcaf_tree, offset, ti); |
1889 | 0 | break; |
1890 | 35 | case LCAF_NATT: |
1891 | 35 | offset = dissect_lcaf_natt(payload_tvb, pinfo, lcaf_tree, offset, len); |
1892 | 35 | break; |
1893 | 1 | case LCAF_NONCE_LOC: |
1894 | 1 | offset = dissect_lcaf_nonce_loc(payload_tvb, pinfo, lcaf_tree, offset, ti); |
1895 | 1 | break; |
1896 | 0 | case LCAF_MCAST_INFO: |
1897 | 0 | offset = dissect_lcaf_mcast_info(payload_tvb, pinfo, lcaf_tree, offset, ti); |
1898 | 0 | break; |
1899 | 27 | case LCAF_ELP: |
1900 | 27 | offset = dissect_lcaf_elp(payload_tvb, pinfo, lcaf_tree, offset, len, ti); |
1901 | 27 | break; |
1902 | 0 | case LCAF_SRC_DST_KEY: |
1903 | 0 | offset = dissect_lcaf_src_dst_key(payload_tvb, pinfo, lcaf_tree, offset, ti); |
1904 | 0 | break; |
1905 | 6 | case LCAF_RLE: |
1906 | 6 | offset = dissect_lcaf_rle(payload_tvb, pinfo, lcaf_tree, offset, len, ti); |
1907 | 6 | break; |
1908 | 0 | case LCAF_KV_ADDR_PAIR: |
1909 | 0 | offset = dissect_lcaf_kv_addr_pair(payload_tvb, pinfo, lcaf_tree, offset); |
1910 | 0 | break; |
1911 | 0 | case LCAF_VENDOR: |
1912 | 0 | offset = dissect_lcaf_vendor(payload_tvb, pinfo, lcaf_tree, offset, len); |
1913 | 0 | break; |
1914 | 8 | default: |
1915 | 8 | proto_tree_add_expert(tree, pinfo, &ei_lisp_undecoded, tvb, offset, len); |
1916 | 8 | return offset + len; |
1917 | 80 | } |
1918 | 9 | decrement_dissection_depth(pinfo); |
1919 | 9 | return offset; |
1920 | 80 | } |
1921 | | |
1922 | | |
1923 | | /* |
1924 | | * Dissector code for locator records within control packets |
1925 | | * |
1926 | | * 0 1 2 3 |
1927 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
1928 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1929 | | * | Priority | Weight | M Priority | M Weight | |
1930 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1931 | | * | Unused Flags |L|p|R| Loc-AFI | |
1932 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1933 | | * | Locator | |
1934 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
1935 | | * |
1936 | | */ |
1937 | | |
1938 | | static int |
1939 | | dissect_lisp_locator(tvbuff_t *tvb, packet_info *pinfo, proto_tree *lisp_mapping_tree, int rec) |
1940 | 637 | { |
1941 | 637 | int offset = 0; |
1942 | 637 | uint16_t addr_len = 0; |
1943 | 637 | uint8_t prio; |
1944 | 637 | uint8_t weight; |
1945 | 637 | uint8_t m_prio; |
1946 | 637 | uint8_t m_weight; |
1947 | 637 | uint16_t flags; |
1948 | 637 | uint16_t loc_afi; |
1949 | 637 | const char *locator; |
1950 | 637 | proto_item *tir, *ti_flags; |
1951 | 637 | proto_tree *lisp_lcaf_tree, *lisp_loc_tree, *lisp_flags_tree; |
1952 | | |
1953 | 637 | tir = proto_tree_add_item(lisp_mapping_tree, hf_lisp_loc, tvb, offset, 8, ENC_NA); |
1954 | | |
1955 | 637 | lisp_loc_tree = proto_item_add_subtree(tir, ett_lisp_loc); |
1956 | | |
1957 | 637 | proto_tree_add_item(lisp_loc_tree, hf_lisp_loc_priority, tvb, offset, 1, ENC_BIG_ENDIAN); |
1958 | 637 | prio = tvb_get_uint8(tvb, offset); |
1959 | 637 | offset += 1; |
1960 | | |
1961 | 637 | proto_tree_add_item_ret_uint8(lisp_loc_tree, hf_lisp_loc_weight, tvb, offset, 1, ENC_BIG_ENDIAN, &weight); |
1962 | 637 | offset += 1; |
1963 | | |
1964 | 637 | proto_tree_add_item(lisp_loc_tree, hf_lisp_loc_mpriority, tvb, offset, 1, ENC_BIG_ENDIAN); |
1965 | 637 | m_prio = tvb_get_uint8(tvb, offset); |
1966 | 637 | offset += 1; |
1967 | | |
1968 | 637 | proto_tree_add_item(lisp_loc_tree, hf_lisp_loc_mweight, tvb, offset, 1, ENC_BIG_ENDIAN); |
1969 | 637 | m_weight = tvb_get_uint8(tvb, offset); |
1970 | 637 | offset += 1; |
1971 | | |
1972 | 637 | ti_flags = proto_tree_add_item(lisp_loc_tree, hf_lisp_loc_flags, tvb, offset, 2, ENC_BIG_ENDIAN); |
1973 | 637 | lisp_flags_tree = proto_item_add_subtree(ti_flags, ett_lisp_loc_flags); |
1974 | 637 | proto_tree_add_item(lisp_flags_tree, hf_lisp_loc_flags_res, tvb, offset, 2, ENC_BIG_ENDIAN); |
1975 | 637 | proto_tree_add_item(lisp_flags_tree, hf_lisp_loc_flags_local, tvb, offset, 2, ENC_BIG_ENDIAN); |
1976 | 637 | proto_tree_add_item(lisp_flags_tree, hf_lisp_loc_flags_probe, tvb, offset, 2, ENC_BIG_ENDIAN); |
1977 | 637 | proto_tree_add_item(lisp_flags_tree, hf_lisp_loc_flags_reach, tvb, offset, 2, ENC_BIG_ENDIAN); |
1978 | 637 | flags = tvb_get_ntohs(tvb, offset); |
1979 | 637 | offset += 2; |
1980 | | |
1981 | 637 | proto_tree_add_item_ret_uint16(lisp_loc_tree, hf_lisp_loc_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &loc_afi); |
1982 | 637 | offset += 2; |
1983 | | |
1984 | 637 | locator = get_addr_str(tvb, pinfo, offset, loc_afi, &addr_len); |
1985 | | |
1986 | 637 | if (locator == NULL) { |
1987 | 382 | expert_add_info_format(pinfo, lisp_mapping_tree, &ei_lisp_unexpected_field, |
1988 | 382 | "Unexpected locator AFI (%d), cannot decode", loc_afi); |
1989 | 382 | return offset; |
1990 | 382 | } |
1991 | | |
1992 | 255 | if (loc_afi == AFNUM_LISP_CANONICAL_ADDRESS_FORMAT) { |
1993 | | /* Create a sub-tree for the mapping */ |
1994 | 1 | lisp_lcaf_tree = proto_item_add_subtree(tir, ett_lisp_lcaf); |
1995 | 1 | offset = dissect_lcaf(tvb, pinfo, lisp_lcaf_tree, offset, NULL); |
1996 | 254 | } else { |
1997 | 254 | proto_tree_add_string(lisp_loc_tree, hf_lisp_loc_locator, tvb, offset, addr_len, locator); |
1998 | 254 | offset += addr_len; |
1999 | 254 | } |
2000 | | |
2001 | 255 | proto_item_append_text(tir, " %d, %sRLOC: %s%s, %s, Priority/Weight: %d/%d, Multicast Priority/Weight: %d/%d", |
2002 | 255 | rec, |
2003 | 255 | (flags&LOCAL_BIT_MASK) ? "Local " : "", |
2004 | 255 | locator, |
2005 | 255 | (flags&PROBE_BIT_MASK) ? " (probed)" : "", |
2006 | 255 | (flags&REACH_BIT_MASK) ? "Reachable" : "Unreachable", |
2007 | 255 | prio, weight, m_prio, m_weight); |
2008 | 255 | proto_item_set_len(tir, 8 + addr_len); |
2009 | | |
2010 | 255 | return offset; |
2011 | 637 | } |
2012 | | |
2013 | | |
2014 | | /* |
2015 | | * Dissector code for mapping records within control packets |
2016 | | * |
2017 | | * 0 1 2 3 |
2018 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
2019 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2020 | | * | Record TTL | |
2021 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2022 | | * | Locator Count | EID mask-len | ACT |A| Reserved | |
2023 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2024 | | * | Rsvd | Map-Version Number | EID-AFI | |
2025 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2026 | | * | EID-prefix | |
2027 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2028 | | * |
2029 | | */ |
2030 | | |
2031 | | int |
2032 | | dissect_lisp_mapping(tvbuff_t *tvb, packet_info *pinfo, proto_tree *lisp_tree, |
2033 | | uint8_t rec_cnt, int rec, bool referral, int offset, proto_item *tim) |
2034 | 3.24k | { |
2035 | 3.24k | int i; |
2036 | 3.24k | int str_len; |
2037 | 3.24k | uint16_t addr_len = 0; |
2038 | 3.24k | uint8_t prefix_mask, loc_cnt; |
2039 | 3.24k | uint16_t flags; |
2040 | 3.24k | uint16_t act; |
2041 | 3.24k | uint16_t prefix_afi, eid_afi; |
2042 | 3.24k | const char *prefix; |
2043 | 3.24k | proto_item *tir; |
2044 | 3.24k | proto_tree *lisp_mapping_tree, *lcaf_prefix_tree; |
2045 | | |
2046 | 3.24k | prefix_mask = tvb_get_uint8(tvb, offset + 5); |
2047 | 3.24k | flags = tvb_get_ntohs(tvb, offset + 6); |
2048 | 3.24k | prefix_afi = tvb_get_ntohs(tvb, offset + 10); |
2049 | | |
2050 | 3.24k | act = flags & LISP_MAP_ACT; |
2051 | 3.24k | act >>= 13; |
2052 | | |
2053 | 3.24k | prefix = get_addr_str(tvb, pinfo, offset + 12, prefix_afi, &addr_len); |
2054 | | |
2055 | 3.24k | if (prefix == NULL) { |
2056 | 2.93k | expert_add_info_format(pinfo, lisp_tree, &ei_lisp_unexpected_field, |
2057 | 2.93k | "Unexpected EID prefix AFI (%d), cannot decode", prefix_afi); |
2058 | 2.93k | return offset; |
2059 | 2.93k | } |
2060 | 318 | tir = proto_tree_add_item(lisp_tree, hf_lisp_mapping, tvb, offset, 12 + addr_len, ENC_NA); |
2061 | 318 | if (tim) { |
2062 | 0 | proto_item_append_text(tim, " for %s/%d", prefix, prefix_mask); |
2063 | 0 | } |
2064 | | |
2065 | | /* Update the INFO column if there is only one record */ |
2066 | 318 | if (rec_cnt == 1) |
2067 | 2 | col_append_fstr(pinfo->cinfo, COL_INFO, " for %s/%d", |
2068 | 2 | prefix, prefix_mask); |
2069 | | |
2070 | | /* Create a sub-tree for the mapping */ |
2071 | 318 | lisp_mapping_tree = proto_item_add_subtree(tir, ett_lisp_mapping); |
2072 | 318 | proto_item_append_text(tir, " %d, EID Prefix: %s/%d", rec, prefix, prefix_mask); |
2073 | | |
2074 | | /* TTL (32 bits) */ |
2075 | 318 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_ttl, tvb, offset, 4, ENC_BIG_ENDIAN); |
2076 | 318 | if (tvb_get_ntohl(tvb, offset) == 0xFFFFFFFF) { |
2077 | 1 | proto_item_append_text(tir, ", TTL: Unlimited"); |
2078 | 317 | } else { |
2079 | 317 | proto_item_append_text(tir, ", TTL: %d", tvb_get_ntohl(tvb, offset)); |
2080 | 317 | } |
2081 | 318 | offset += 4; |
2082 | | |
2083 | | /* Locator count (8 bits) */ |
2084 | 318 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_loccnt, tvb, offset, 1, ENC_BIG_ENDIAN); |
2085 | 318 | loc_cnt = tvb_get_uint8(tvb, offset); |
2086 | 318 | offset += 1; |
2087 | | |
2088 | | /* EID mask length (8 bits) */ |
2089 | 318 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_eid_masklen, tvb, offset, 1, ENC_BIG_ENDIAN); |
2090 | 318 | offset += 1; |
2091 | | |
2092 | | /* Action (3 bits) */ |
2093 | 318 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_act, tvb, offset, 2, ENC_BIG_ENDIAN); |
2094 | 318 | proto_item_append_text(tir, ", %s%s%s", |
2095 | 318 | (referral) ? "" : "Action: ", |
2096 | 318 | val_to_str(pinfo->pool, act, (referral) ? referral_actions : mapping_actions, "Invalid action code (%d)"), |
2097 | 318 | (referral&&(flags&REFERRAL_INCOMPLETE)) ? " (Incomplete)" : ""); |
2098 | | |
2099 | | /* Authoritative bit */ |
2100 | 318 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_auth, tvb, offset, 2, ENC_BIG_ENDIAN); |
2101 | 318 | if (flags&LISP_MAP_AUTH) { |
2102 | 61 | proto_item_append_text(tir, ", Authoritative"); |
2103 | 257 | } else { |
2104 | 257 | proto_item_append_text(tir, ", Not Authoritative"); |
2105 | 257 | } |
2106 | | |
2107 | | /* Incomplete bit in Map-Referrals */ |
2108 | 318 | if (referral) |
2109 | 91 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_referral_incomplete, tvb, offset, 2, ENC_BIG_ENDIAN); |
2110 | | |
2111 | | /* Reserved (11 bits) */ |
2112 | 318 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_res1, tvb, offset, 2, ENC_BIG_ENDIAN); |
2113 | 318 | offset += 2; |
2114 | | |
2115 | 318 | if (referral) { |
2116 | | /* SigCnt (4 bits) */ |
2117 | 91 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_referral_sigcnt, tvb, offset, 2, ENC_BIG_ENDIAN); |
2118 | 227 | } else { |
2119 | | /* Reserved (4 bits) */ |
2120 | 227 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_res2, tvb, offset, 2, ENC_BIG_ENDIAN); |
2121 | 227 | } |
2122 | | |
2123 | | /* Map-Version Number (12 bits) */ |
2124 | 318 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_ver, tvb, offset, 2, ENC_BIG_ENDIAN); |
2125 | 318 | offset += 2; |
2126 | | |
2127 | | /* EID prefix AFI (16 bits) */ |
2128 | 318 | proto_tree_add_item_ret_uint16(lisp_mapping_tree, hf_lisp_mapping_eid_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &eid_afi); |
2129 | 318 | offset += 2; |
2130 | | |
2131 | | /* EID */ |
2132 | 318 | switch (eid_afi) { |
2133 | 3 | case AFNUM_IP: |
2134 | 3 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_eid_ipv4, tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
2135 | 3 | offset += INET_ADDRLEN; |
2136 | 3 | break; |
2137 | 7 | case AFNUM_IP6: |
2138 | 7 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_eid_ipv6, tvb, offset, INET6_ADDRLEN, ENC_NA); |
2139 | 7 | offset += INET6_ADDRLEN; |
2140 | 7 | break; |
2141 | 67 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
2142 | 67 | lcaf_prefix_tree = proto_tree_add_subtree_format(lisp_mapping_tree, tvb, offset, addr_len, ett_lisp_lcaf, NULL, "EID Prefix: %s", prefix); |
2143 | 67 | dissect_lcaf(tvb, pinfo, lcaf_prefix_tree, offset, NULL); |
2144 | 67 | offset += addr_len; |
2145 | 67 | break; |
2146 | 3 | case AFNUM_802: |
2147 | 3 | case AFNUM_48_BIT_MAC: |
2148 | 3 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_eid_mac, tvb, offset, EUI48_ADDRLEN, ENC_NA); |
2149 | 3 | offset += EUI48_ADDRLEN; |
2150 | 3 | break; |
2151 | 1 | case AFNUM_DISTINGUISHED_NAME: |
2152 | 1 | str_len = tvb_strsize(tvb, offset); |
2153 | 1 | proto_tree_add_item(lisp_mapping_tree, hf_lisp_mapping_eid_dn, tvb, offset, str_len, ENC_ASCII); |
2154 | 1 | offset += str_len; |
2155 | 1 | break; |
2156 | 318 | } |
2157 | | |
2158 | | /* Locators */ |
2159 | 876 | for(i=0; i < loc_cnt; i++) { |
2160 | 638 | tvbuff_t *loc_tvb; |
2161 | 638 | int len = 0; |
2162 | | |
2163 | 638 | loc_tvb = tvb_new_subset_remaining(tvb, offset); |
2164 | 638 | len = dissect_lisp_locator(loc_tvb, pinfo, lisp_mapping_tree, i+1); |
2165 | 638 | offset += len; |
2166 | 638 | } |
2167 | | |
2168 | 238 | return offset; |
2169 | 318 | } |
2170 | | |
2171 | | |
2172 | | /* |
2173 | | * Dissector code for Map-Request type control packets |
2174 | | * |
2175 | | * 0 1 2 3 |
2176 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
2177 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2178 | | * |Type=1 |A|M|P|S|p|s| Reserved | IRC | Record Count | |
2179 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2180 | | * | Nonce . . . | |
2181 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2182 | | * | . . . Nonce | |
2183 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2184 | | * | Source-EID-AFI | Source EID Address ... | |
2185 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2186 | | * | ITR-RLOC-AFI 1 | ITR-RLOC Address 1 ... | |
2187 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2188 | | * | ... | |
2189 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2190 | | * | ITR-RLOC-AFI n | ITR-RLOC Address n ... | |
2191 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2192 | | * / | Reserved | EID mask-len | EID-prefix-AFI | |
2193 | | * Rec +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2194 | | * \ | EID-prefix ... | |
2195 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2196 | | * | Map-Reply Record ... | |
2197 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2198 | | * |
2199 | | */ |
2200 | | |
2201 | | static void |
2202 | | dissect_lisp_map_request(tvbuff_t *tvb, packet_info *pinfo, proto_tree *lisp_tree) |
2203 | 9 | { |
2204 | 9 | int i; |
2205 | 9 | uint16_t addr_len = 0; |
2206 | 9 | int offset = 0; |
2207 | 9 | uint16_t flags; |
2208 | 9 | bool mrep; |
2209 | 9 | bool smr; |
2210 | 9 | bool probe; |
2211 | 9 | bool pitr; |
2212 | 9 | bool smr_invoked; |
2213 | 9 | uint8_t itr_rec_cnt = 0; |
2214 | 9 | uint8_t rec_cnt = 0; |
2215 | 9 | uint16_t src_eid_afi; |
2216 | 9 | const char *src_eid; |
2217 | 9 | proto_item *ti_flags; |
2218 | 9 | proto_tree *flags_tree, *lcaf_src_eid_tree, *lcaf_prefix_tree; |
2219 | 9 | tvbuff_t *next_tvb; |
2220 | | |
2221 | | /* Flags (6 bits)*/ |
2222 | 9 | flags = tvb_get_ntohs(tvb, offset); |
2223 | 9 | mrep = flags & (MAP_REQ_FLAG_M >> 8); |
2224 | 9 | smr = flags & (MAP_REQ_FLAG_S >> 8); |
2225 | 9 | probe = flags & (MAP_REQ_FLAG_P >> 8); |
2226 | 9 | pitr = flags & (MAP_REQ_FLAG_p >> 8); |
2227 | 9 | smr_invoked = flags & (MAP_REQ_FLAG_s >> 8); |
2228 | | |
2229 | 9 | ti_flags = proto_tree_add_item(lisp_tree, hf_lisp_mreq_flags, tvb, offset, 3, ENC_BIG_ENDIAN); |
2230 | 9 | flags_tree = proto_item_add_subtree(ti_flags, ett_lisp_mreq_flags); |
2231 | 9 | proto_tree_add_item(flags_tree, hf_lisp_mreq_flags_auth, tvb, offset, 3, ENC_BIG_ENDIAN); |
2232 | 9 | proto_tree_add_item(flags_tree, hf_lisp_mreq_flags_mrp, tvb, offset, 3, ENC_BIG_ENDIAN); |
2233 | 9 | proto_tree_add_item(flags_tree, hf_lisp_mreq_flags_probe, tvb, offset, 3, ENC_BIG_ENDIAN); |
2234 | 9 | proto_tree_add_item(flags_tree, hf_lisp_mreq_flags_smr, tvb, offset, 3, ENC_BIG_ENDIAN); |
2235 | 9 | proto_tree_add_item(flags_tree, hf_lisp_mreq_flags_pitr, tvb, offset, 3, ENC_BIG_ENDIAN); |
2236 | 9 | proto_tree_add_item(flags_tree, hf_lisp_mreq_flags_smri, tvb, offset, 3, ENC_BIG_ENDIAN); |
2237 | | |
2238 | 9 | if (pitr) |
2239 | 1 | col_append_str(pinfo->cinfo, COL_INFO, " by P-ITR"); |
2240 | | |
2241 | 9 | if (smr) |
2242 | 3 | col_append_str(pinfo->cinfo, COL_INFO, " (SMR)"); |
2243 | | |
2244 | 9 | if (probe) |
2245 | 4 | col_append_str(pinfo->cinfo, COL_INFO, " (RLOC-probe)"); |
2246 | | |
2247 | 9 | if (smr_invoked) |
2248 | 3 | col_append_str(pinfo->cinfo, COL_INFO, " (SMR-invoked)"); |
2249 | | |
2250 | | /* Reserved bits (9 bits) */ |
2251 | 9 | proto_tree_add_item(lisp_tree, hf_lisp_mreq_res, tvb, offset, 3, ENC_BIG_ENDIAN); |
2252 | | |
2253 | | /* ITR record count (5 bits) */ |
2254 | 9 | itr_rec_cnt = tvb_get_uint8(tvb, offset + 2) & 0x1F; |
2255 | 9 | proto_tree_add_item(lisp_tree, hf_lisp_irc, tvb, offset, 3, ENC_BIG_ENDIAN); |
2256 | 9 | offset += 3; |
2257 | | |
2258 | | /* Record count (8 bits) */ |
2259 | 9 | rec_cnt = tvb_get_uint8(tvb, offset); |
2260 | 9 | proto_tree_add_item(lisp_tree, hf_lisp_records, tvb, offset, 1, ENC_BIG_ENDIAN); |
2261 | 9 | offset += 1; |
2262 | | |
2263 | | /* Nonce (64 bits) */ |
2264 | 9 | proto_tree_add_item(lisp_tree, hf_lisp_nonce, tvb, offset, 8, ENC_BIG_ENDIAN); |
2265 | 9 | offset += 8; |
2266 | | |
2267 | | /* Source EID AFI (16 bits) */ |
2268 | 9 | src_eid_afi = tvb_get_ntohs(tvb, offset); |
2269 | 9 | proto_tree_add_item(lisp_tree, hf_lisp_mreq_srceid_afi, tvb, offset, 2, ENC_BIG_ENDIAN); |
2270 | 9 | offset += 2; |
2271 | | |
2272 | | /* Source EID */ |
2273 | 9 | switch (src_eid_afi) { |
2274 | 4 | case AFNUM_RESERVED_0: |
2275 | 4 | proto_tree_add_string(lisp_tree, hf_lisp_mreq_srceid_string, tvb, offset, 0, "not set"); |
2276 | 4 | break; |
2277 | 1 | case AFNUM_IP: |
2278 | 1 | proto_tree_add_item(lisp_tree, |
2279 | 1 | hf_lisp_mreq_srceid_ipv4, tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
2280 | 1 | offset += INET_ADDRLEN; |
2281 | 1 | break; |
2282 | 0 | case AFNUM_IP6: |
2283 | 0 | proto_tree_add_item(lisp_tree, |
2284 | 0 | hf_lisp_mreq_srceid_ipv6, tvb, offset, INET6_ADDRLEN, ENC_NA); |
2285 | 0 | offset += INET6_ADDRLEN; |
2286 | 0 | break; |
2287 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
2288 | 0 | src_eid = get_addr_str(tvb, pinfo, offset, src_eid_afi, &addr_len); |
2289 | 0 | lcaf_src_eid_tree = proto_tree_add_subtree_format(lisp_tree, tvb, offset, addr_len, ett_lisp_lcaf, NULL, "Source EID: %s", src_eid); |
2290 | 0 | dissect_lcaf(tvb, pinfo, lcaf_src_eid_tree, offset, NULL); |
2291 | 0 | offset += addr_len; |
2292 | 0 | break; |
2293 | 0 | case AFNUM_802: |
2294 | 0 | case AFNUM_48_BIT_MAC: |
2295 | 0 | proto_tree_add_item(lisp_tree, |
2296 | 0 | hf_lisp_mreq_srceid_mac, tvb, offset, EUI48_ADDRLEN, ENC_NA); |
2297 | 0 | offset += EUI48_ADDRLEN; |
2298 | 0 | break; |
2299 | 1 | default: |
2300 | 1 | expert_add_info_format(pinfo, lisp_tree, &ei_lisp_unexpected_field, |
2301 | 1 | "Unexpected Source EID AFI (%d), cannot decode", src_eid_afi); |
2302 | 1 | next_tvb = tvb_new_subset_remaining(tvb, offset); |
2303 | 1 | call_data_dissector(next_tvb, pinfo, lisp_tree); |
2304 | 1 | return; |
2305 | 9 | } |
2306 | | |
2307 | | /* ITR records */ |
2308 | 7 | for(i=0; i < itr_rec_cnt+1; i++) { |
2309 | 6 | uint16_t itr_afi; |
2310 | 6 | proto_item *tir; |
2311 | 6 | proto_tree *lisp_itr_tree; |
2312 | | |
2313 | 6 | itr_afi = tvb_get_ntohs(tvb, offset); |
2314 | 6 | tir = proto_tree_add_item(lisp_tree, hf_lisp_mreq_itr_rloc, tvb, offset, 2, ENC_NA); |
2315 | 6 | lisp_itr_tree = proto_item_add_subtree(tir, ett_lisp_itr); |
2316 | 6 | proto_tree_add_item(lisp_itr_tree, hf_lisp_mreq_itr_rloc_afi, tvb, offset, 2, ENC_BIG_ENDIAN); |
2317 | 6 | offset += 2; |
2318 | | |
2319 | 6 | switch (itr_afi) { |
2320 | 1 | case AFNUM_IP: |
2321 | 1 | proto_tree_add_item(lisp_itr_tree, hf_lisp_mreq_itr_rloc_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN); |
2322 | 1 | proto_item_append_text(tir, " %d: %s", i + 1, tvb_ip_to_str(pinfo->pool, tvb, offset)); |
2323 | 1 | proto_item_set_len(tir, 2 + INET_ADDRLEN); |
2324 | 1 | offset += INET_ADDRLEN; |
2325 | 1 | break; |
2326 | 1 | case AFNUM_IP6: |
2327 | 1 | proto_tree_add_item(lisp_itr_tree, hf_lisp_mreq_itr_rloc_ipv6, tvb, offset, 16, ENC_NA); |
2328 | 1 | proto_item_append_text(tir, " %d: %s", i + 1, tvb_ip6_to_str(pinfo->pool, tvb, offset)); |
2329 | 1 | proto_item_set_len(tir, 2 + INET6_ADDRLEN); |
2330 | 1 | offset += INET6_ADDRLEN; |
2331 | 1 | break; |
2332 | 4 | default: |
2333 | 4 | expert_add_info_format(pinfo, lisp_tree, &ei_lisp_unexpected_field, |
2334 | 4 | "Unexpected ITR-RLOC-AFI (%d), cannot decode", itr_afi); |
2335 | 4 | next_tvb = tvb_new_subset_remaining(tvb, offset); |
2336 | 4 | call_data_dissector(next_tvb, pinfo, lisp_tree); |
2337 | 4 | return; |
2338 | 6 | } |
2339 | 6 | } |
2340 | | |
2341 | | /* Query records */ |
2342 | 3 | for(i=0; i < rec_cnt; i++) { |
2343 | 3 | int str_len; |
2344 | 3 | uint16_t prefix_mask; |
2345 | 3 | uint16_t prefix_afi; |
2346 | 3 | const char *prefix; |
2347 | 3 | proto_item *tir; |
2348 | 3 | proto_tree *lisp_record_tree; |
2349 | | |
2350 | 3 | addr_len = 0; |
2351 | 3 | prefix_mask = tvb_get_uint8(tvb, offset + 1); |
2352 | 3 | prefix_afi = tvb_get_ntohs(tvb, offset + 2); |
2353 | 3 | prefix = get_addr_str(tvb, pinfo, offset + 4, prefix_afi, &addr_len); |
2354 | | |
2355 | 3 | if (prefix == NULL) { |
2356 | 1 | expert_add_info_format(pinfo, lisp_tree, &ei_lisp_unexpected_field, |
2357 | 1 | "Unexpected EID prefix AFI (%d), cannot decode", prefix_afi); |
2358 | 1 | next_tvb = tvb_new_subset_remaining(tvb, offset); |
2359 | 1 | call_data_dissector(next_tvb, pinfo, lisp_tree); |
2360 | 1 | return; |
2361 | 1 | } |
2362 | | |
2363 | 2 | tir = proto_tree_add_item(lisp_tree, hf_lisp_mreq_record, tvb, offset, 4+addr_len, ENC_NA); |
2364 | | |
2365 | | /* Update the INFO column if there is only one record */ |
2366 | 2 | if (rec_cnt == 1) |
2367 | 0 | col_append_fstr(pinfo->cinfo, COL_INFO, " for %s/%d", prefix, prefix_mask); |
2368 | | |
2369 | 2 | lisp_record_tree = proto_item_add_subtree(tir, ett_lisp_record); |
2370 | 2 | proto_tree_add_item(lisp_record_tree, hf_lisp_mreq_record_res, tvb, offset, 1, ENC_BIG_ENDIAN); |
2371 | 2 | offset += 1; |
2372 | | |
2373 | 2 | proto_tree_add_item(lisp_record_tree, hf_lisp_mreq_record_prefix_length, tvb, offset, 1, ENC_BIG_ENDIAN); |
2374 | 2 | offset += 1; |
2375 | | |
2376 | 2 | proto_tree_add_item(lisp_record_tree, hf_lisp_mreq_record_prefix_afi, tvb, offset, 2, ENC_BIG_ENDIAN); |
2377 | 2 | offset += 2; |
2378 | | |
2379 | 2 | switch (prefix_afi) { |
2380 | 0 | case AFNUM_IP: |
2381 | 0 | proto_tree_add_item(lisp_record_tree, hf_lisp_mreq_record_prefix_ipv4, tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
2382 | 0 | offset += INET_ADDRLEN; |
2383 | 0 | break; |
2384 | 0 | case AFNUM_IP6: |
2385 | 0 | proto_tree_add_item(lisp_record_tree, hf_lisp_mreq_record_prefix_ipv6, tvb, offset, INET6_ADDRLEN, ENC_NA); |
2386 | 0 | offset += INET6_ADDRLEN; |
2387 | 0 | break; |
2388 | 0 | case AFNUM_LISP_CANONICAL_ADDRESS_FORMAT: |
2389 | 0 | lcaf_prefix_tree = proto_tree_add_subtree_format(lisp_record_tree, tvb, offset, addr_len, ett_lisp_lcaf, NULL, "Prefix: %s", prefix); |
2390 | 0 | dissect_lcaf(tvb, pinfo, lcaf_prefix_tree, offset, NULL); |
2391 | 0 | offset += addr_len; |
2392 | 0 | break; |
2393 | 0 | case AFNUM_802: |
2394 | 0 | case AFNUM_48_BIT_MAC: |
2395 | 0 | proto_tree_add_item(lisp_record_tree, hf_lisp_mreq_record_prefix_mac, tvb, offset, EUI48_ADDRLEN, ENC_NA); |
2396 | 0 | offset += EUI48_ADDRLEN; |
2397 | 0 | break; |
2398 | 0 | case AFNUM_DISTINGUISHED_NAME: |
2399 | 0 | str_len = tvb_strsize(tvb, offset); |
2400 | 0 | proto_tree_add_item(lisp_record_tree, hf_lisp_mreq_record_prefix_dn, tvb, offset, str_len, ENC_ASCII); |
2401 | 0 | offset += str_len; |
2402 | 0 | break; |
2403 | 2 | } |
2404 | 2 | proto_item_append_text(tir, " %d: %s/%d", i+1, prefix, prefix_mask); |
2405 | 2 | } |
2406 | | |
2407 | | /* If M bit is set, we also have a Map-Reply */ |
2408 | 0 | if (mrep) { |
2409 | 0 | proto_item *tim; |
2410 | 0 | proto_tree *lisp_mr_tree; |
2411 | |
|
2412 | 0 | tim = proto_tree_add_item(lisp_tree, hf_lisp_mrep_record, tvb, offset, -1, ENC_NA); |
2413 | 0 | lisp_mr_tree = proto_item_add_subtree(tim, ett_lisp_mr); |
2414 | |
|
2415 | 0 | offset = dissect_lisp_mapping(tvb, pinfo, lisp_mr_tree, 0, 1, false, offset, NULL); |
2416 | 0 | } |
2417 | |
|
2418 | 0 | next_tvb = tvb_new_subset_remaining(tvb, offset); |
2419 | 0 | call_data_dissector(next_tvb, pinfo, lisp_tree); |
2420 | 0 | } |
2421 | | |
2422 | | |
2423 | | /* |
2424 | | * Dissector code for Map-Reply type control packets |
2425 | | * |
2426 | | * 0 1 2 3 |
2427 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
2428 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2429 | | * |Type=2 |P|E|S| Reserved | Record Count | |
2430 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2431 | | * | Nonce . . . | |
2432 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2433 | | * | . . . Nonce | |
2434 | | * +-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2435 | | * | | Record TTL | |
2436 | | * | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2437 | | * R | Locator Count | EID mask-len | ACT |A| Reserved | |
2438 | | * e +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2439 | | * c | Rsvd | Map-Version Number | EID-AFI | |
2440 | | * o +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2441 | | * r | EID-prefix | |
2442 | | * d +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2443 | | * | /| Priority | Weight | M Priority | M Weight | |
2444 | | * | L +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2445 | | * | o | Unused Flags |L|p|R| Loc-AFI | |
2446 | | * | c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2447 | | * | \| Locator | |
2448 | | * +-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2449 | | * |
2450 | | */ |
2451 | | |
2452 | | static void |
2453 | | dissect_lisp_map_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *lisp_tree) |
2454 | 97 | { |
2455 | 97 | int i; |
2456 | 97 | int offset = 0; |
2457 | 97 | bool probe; |
2458 | 97 | uint8_t flags; |
2459 | 97 | uint8_t rec_cnt = 0; |
2460 | 97 | tvbuff_t *next_tvb; |
2461 | | |
2462 | | /* Flags (2 bits) */ |
2463 | 97 | flags = tvb_get_uint8(tvb, offset); |
2464 | 97 | probe = flags & (MAP_REP_FLAG_P >> 16); |
2465 | 97 | proto_tree_add_item(lisp_tree, hf_lisp_mrep_flags_probe, tvb, offset, 3, ENC_BIG_ENDIAN); |
2466 | 97 | proto_tree_add_item(lisp_tree, hf_lisp_mrep_flags_enlr, tvb, offset, 3, ENC_BIG_ENDIAN); |
2467 | | |
2468 | | /* Flags defined in LISP-SEC draft (1 bit) */ |
2469 | 97 | proto_tree_add_item(lisp_tree, hf_lisp_mrep_flags_sec, tvb, offset, 3, ENC_BIG_ENDIAN); |
2470 | | |
2471 | 97 | if (probe) |
2472 | 13 | col_append_str(pinfo->cinfo, COL_INFO, " (RLOC-probe reply)"); |
2473 | | |
2474 | | /* Reserved bits (18 bits) */ |
2475 | 97 | proto_tree_add_item(lisp_tree, hf_lisp_mrep_res, tvb, offset, 3, ENC_BIG_ENDIAN); |
2476 | 97 | offset += 3; |
2477 | | |
2478 | | /* Record count (8 bits) */ |
2479 | 97 | rec_cnt = tvb_get_uint8(tvb, offset); |
2480 | 97 | proto_tree_add_item(lisp_tree, hf_lisp_records, tvb, offset, 1, ENC_BIG_ENDIAN); |
2481 | 97 | offset += 1; |
2482 | | |
2483 | | /* Nonce (64 bits) */ |
2484 | 97 | proto_tree_add_item(lisp_tree, hf_lisp_nonce, tvb, offset, 8, ENC_BIG_ENDIAN); |
2485 | 97 | offset += 8; |
2486 | | |
2487 | | /* Reply records */ |
2488 | 967 | for(i=0; i < rec_cnt; i++) { |
2489 | 870 | offset = dissect_lisp_mapping(tvb, pinfo, lisp_tree, rec_cnt, i+1, false, offset, NULL); |
2490 | 870 | } |
2491 | | |
2492 | 97 | next_tvb = tvb_new_subset_remaining(tvb, offset); |
2493 | 97 | call_data_dissector(next_tvb, pinfo, lisp_tree); |
2494 | 97 | } |
2495 | | |
2496 | | |
2497 | | /* |
2498 | | * Dissector code for Map-Register type control packets |
2499 | | * |
2500 | | * 0 1 2 3 |
2501 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
2502 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2503 | | * |Type=3 |P|S|I|R| Reserved |M| Record Count | |
2504 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2505 | | * | Nonce . . . | |
2506 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2507 | | * | . . . Nonce | |
2508 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2509 | | * | Key ID | Authentication Data Length | |
2510 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2511 | | * ~ Authentication Data ~ |
2512 | | * +-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2513 | | * | | Record TTL | |
2514 | | * | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2515 | | * R | Locator Count | EID mask-len | ACT |A| Reserved | |
2516 | | * e +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2517 | | * c | Rsvd | Map-Version Number | EID-AFI | |
2518 | | * o +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2519 | | * r | EID-prefix | |
2520 | | * d +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2521 | | * | /| Priority | Weight | M Priority | M Weight | |
2522 | | * | L +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2523 | | * | o | Unused Flags |L|p|R| Loc-AFI | |
2524 | | * | c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2525 | | * | \| Locator | |
2526 | | * +-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2527 | | * |
2528 | | */ |
2529 | | |
2530 | | int |
2531 | | dissect_lisp_map_register(tvbuff_t *tvb, packet_info *pinfo, proto_tree *lisp_tree, |
2532 | | int offset, proto_item *tim, bool keep_going) |
2533 | 14 | { |
2534 | 14 | int i; |
2535 | 14 | uint8_t rec_cnt = 0; |
2536 | 14 | tvbuff_t *next_tvb; |
2537 | 14 | uint16_t authlen = 0; |
2538 | 14 | uint16_t flags; |
2539 | 14 | bool xtrid; |
2540 | 14 | bool rtr; |
2541 | | |
2542 | | /* Flags (1 bit) */ |
2543 | 14 | proto_tree_add_item(lisp_tree, hf_lisp_mreg_flags_pmr, tvb, offset, 3, ENC_BIG_ENDIAN); |
2544 | | |
2545 | | /* Flags defined in LISP-SEC draft (1 bit) */ |
2546 | 14 | proto_tree_add_item(lisp_tree, hf_lisp_mreg_flags_sec, tvb, offset, 3, ENC_BIG_ENDIAN); |
2547 | | |
2548 | | /* Flags defined in NAT Traversal draft (2 bits) */ |
2549 | 14 | flags = tvb_get_ntohs(tvb, offset); |
2550 | 14 | xtrid = flags & (MAP_REG_FLAG_I >> 8); |
2551 | 14 | rtr = flags & (MAP_REG_FLAG_R >> 8); |
2552 | | |
2553 | 14 | proto_tree_add_item(lisp_tree, hf_lisp_mreg_flags_xtrid, tvb, offset, 3, ENC_BIG_ENDIAN); |
2554 | 14 | proto_tree_add_item(lisp_tree, hf_lisp_mreg_flags_rtr, tvb, offset, 3, ENC_BIG_ENDIAN); |
2555 | | |
2556 | 14 | if (rtr) |
2557 | 5 | col_append_str(pinfo->cinfo, COL_INFO, " (RTR)"); |
2558 | | |
2559 | | /* Reserved bits (15 bits) */ |
2560 | 14 | proto_tree_add_item(lisp_tree, hf_lisp_mreg_res, tvb, offset, 3, ENC_BIG_ENDIAN); |
2561 | | |
2562 | | /* Flags (1 bit) */ |
2563 | 14 | proto_tree_add_item(lisp_tree, hf_lisp_mreg_flags_wmn, tvb, offset, 3, ENC_BIG_ENDIAN); |
2564 | 14 | offset += 3; |
2565 | | |
2566 | | /* Record count (8 bits) */ |
2567 | 14 | rec_cnt = tvb_get_uint8(tvb, offset); |
2568 | 14 | proto_tree_add_item(lisp_tree, hf_lisp_records, tvb, offset, 1, ENC_BIG_ENDIAN); |
2569 | 14 | offset += 1; |
2570 | | |
2571 | | /* Nonce (64 bits) */ |
2572 | 14 | proto_tree_add_item(lisp_tree, hf_lisp_nonce, tvb, offset, 8, ENC_BIG_ENDIAN); |
2573 | 14 | offset += 8; |
2574 | | |
2575 | | /* Key ID (16 bits) */ |
2576 | 14 | proto_tree_add_item(lisp_tree, hf_lisp_keyid, tvb, offset, 2, ENC_BIG_ENDIAN); |
2577 | 14 | offset += 2; |
2578 | | |
2579 | | /* Authentication Data Length (16 bits) */ |
2580 | 14 | proto_tree_add_item_ret_uint16(lisp_tree, hf_lisp_authlen, tvb, offset, 2, ENC_BIG_ENDIAN, &authlen); |
2581 | 14 | offset += 2; |
2582 | | |
2583 | | /* Authentication Data */ |
2584 | | /* XXX: need to check is there is still enough data in buffer */ |
2585 | 14 | proto_tree_add_item(lisp_tree, hf_lisp_auth, tvb, offset, authlen, ENC_NA); |
2586 | 14 | offset += authlen; |
2587 | | |
2588 | 282 | for(i=0; i < rec_cnt; i++) { |
2589 | 268 | offset = dissect_lisp_mapping(tvb, pinfo, lisp_tree, rec_cnt, i+1, false, offset, tim); |
2590 | 268 | } |
2591 | | |
2592 | | /* If I bit is set, we have an xTR-ID and a site-ID field */ |
2593 | 14 | if (xtrid) { |
2594 | 2 | proto_tree_add_item(lisp_tree, hf_lisp_xtrid, tvb, offset, LISP_XTRID_LEN, ENC_NA); |
2595 | 2 | proto_tree_add_item(lisp_tree, hf_lisp_siteid, tvb, offset + LISP_XTRID_LEN, LISP_SITEID_LEN, ENC_NA); |
2596 | 2 | offset += LISP_XTRID_LEN + LISP_SITEID_LEN; |
2597 | 2 | } |
2598 | | |
2599 | 14 | if (keep_going) { |
2600 | 3 | next_tvb = tvb_new_subset_remaining(tvb, offset); |
2601 | 3 | call_data_dissector(next_tvb, pinfo, lisp_tree); |
2602 | 11 | } else { |
2603 | 11 | return offset; |
2604 | 11 | } |
2605 | | |
2606 | 3 | return 0; |
2607 | 14 | } |
2608 | | |
2609 | | |
2610 | | /* |
2611 | | * Dissector code for Map-Notify type control packets |
2612 | | * |
2613 | | * 0 1 2 3 |
2614 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
2615 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2616 | | * |Type=4 |I|R| Reserved | Record Count | |
2617 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2618 | | * | Nonce . . . | |
2619 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2620 | | * | . . . Nonce | |
2621 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2622 | | * | Key ID | Authentication Data Length | |
2623 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2624 | | * ~ Authentication Data ~ |
2625 | | * +-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2626 | | * | | Record TTL | |
2627 | | * | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2628 | | * R | Locator Count | EID mask-len | ACT |A| Reserved | |
2629 | | * e +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2630 | | * c | Rsvd | Map-Version Number | EID-AFI | |
2631 | | * o +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2632 | | * r | EID-prefix | |
2633 | | * d +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2634 | | * | /| Priority | Weight | M Priority | M Weight | |
2635 | | * | L +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2636 | | * | o | Unused Flags |L|p|R| Loc-AFI | |
2637 | | * | c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2638 | | * | \| Locator | |
2639 | | * +-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2640 | | * |
2641 | | */ |
2642 | | |
2643 | | static void |
2644 | | dissect_lisp_map_notify(tvbuff_t *tvb, packet_info *pinfo, proto_tree *lisp_tree) |
2645 | 20 | { |
2646 | 20 | int i; |
2647 | 20 | int offset = 0; |
2648 | 20 | uint8_t rec_cnt = 0; |
2649 | 20 | tvbuff_t *next_tvb; |
2650 | 20 | uint16_t authlen = 0; |
2651 | 20 | uint16_t flags; |
2652 | 20 | bool xtrid; |
2653 | 20 | bool rtr; |
2654 | | |
2655 | | /* Flags defined in NAT Traversal draft (2 bits) */ |
2656 | 20 | flags = tvb_get_ntohs(tvb, offset); |
2657 | 20 | xtrid = flags & (MAP_NOT_FLAG_I >> 8); |
2658 | 20 | rtr = flags & (MAP_NOT_FLAG_R >> 8); |
2659 | | |
2660 | 20 | proto_tree_add_item(lisp_tree, hf_lisp_mnot_flags_xtrid, tvb, offset, 3, ENC_BIG_ENDIAN); |
2661 | 20 | proto_tree_add_item(lisp_tree, hf_lisp_mnot_flags_rtr, tvb, offset, 3, ENC_BIG_ENDIAN); |
2662 | | |
2663 | 20 | if (rtr) |
2664 | 5 | col_append_str(pinfo->cinfo, COL_INFO, " (RTR)"); |
2665 | | |
2666 | | /* Reserved bits (18 bits) */ |
2667 | 20 | proto_tree_add_item(lisp_tree, hf_lisp_mnot_res, tvb, offset, 3, ENC_BIG_ENDIAN); |
2668 | 20 | offset += 3; |
2669 | | |
2670 | | /* Record count (8 bits) */ |
2671 | 20 | rec_cnt = tvb_get_uint8(tvb, offset); |
2672 | 20 | proto_tree_add_item(lisp_tree, hf_lisp_records, tvb, offset, 1, ENC_BIG_ENDIAN); |
2673 | 20 | offset += 1; |
2674 | | |
2675 | | /* Nonce (64 bits) */ |
2676 | 20 | proto_tree_add_item(lisp_tree, hf_lisp_nonce, tvb, offset, 8, ENC_BIG_ENDIAN); |
2677 | 20 | offset += 8; |
2678 | | |
2679 | | /* Key ID (16 bits) */ |
2680 | 20 | proto_tree_add_item(lisp_tree, hf_lisp_keyid, tvb, offset, 2, ENC_BIG_ENDIAN); |
2681 | 20 | offset += 2; |
2682 | | |
2683 | | /* Authentication Data Length (16 bits) */ |
2684 | 20 | proto_tree_add_item_ret_uint16(lisp_tree, hf_lisp_authlen, tvb, offset, 2, ENC_BIG_ENDIAN, &authlen); |
2685 | 20 | offset += 2; |
2686 | | |
2687 | | /* Authentication Data */ |
2688 | | /* XXX: need to check is there is still enough data in buffer */ |
2689 | 20 | proto_tree_add_item(lisp_tree, hf_lisp_auth, tvb, offset, authlen, ENC_NA); |
2690 | 20 | offset += authlen; |
2691 | | |
2692 | 1.23k | for(i=0; i < rec_cnt; i++) { |
2693 | 1.21k | offset = dissect_lisp_mapping(tvb, pinfo, lisp_tree, rec_cnt, i+1, false, offset, NULL); |
2694 | 1.21k | } |
2695 | | |
2696 | | /* If I bit is set, we have an xTR-ID and a site-ID field */ |
2697 | 20 | if (xtrid) { |
2698 | 3 | proto_tree_add_item(lisp_tree, hf_lisp_xtrid, tvb, offset, LISP_XTRID_LEN, ENC_NA); |
2699 | 3 | proto_tree_add_item(lisp_tree, hf_lisp_siteid, tvb, offset + LISP_XTRID_LEN, LISP_SITEID_LEN, ENC_NA); |
2700 | 3 | offset += LISP_XTRID_LEN + LISP_SITEID_LEN; |
2701 | 3 | } |
2702 | | |
2703 | | /* If R bit is set, we have MS-RTR authentication data */ |
2704 | 20 | if (rtr) { |
2705 | | /* MS-RTR Key ID (16 bits) */ |
2706 | 2 | proto_tree_add_item(lisp_tree, hf_lisp_msrtr_keyid, tvb, offset, 2, ENC_BIG_ENDIAN); |
2707 | 2 | offset += 2; |
2708 | | |
2709 | | /* MS-RTR Authentication Data Length (16 bits) */ |
2710 | 2 | proto_tree_add_item_ret_uint16(lisp_tree, hf_lisp_msrtr_authlen, tvb, offset, 2, ENC_BIG_ENDIAN, &authlen); |
2711 | 2 | offset += 2; |
2712 | | |
2713 | | /* MS-RTR Authentication Data */ |
2714 | | /* XXX: need to check is there is still enough data in buffer */ |
2715 | 2 | proto_tree_add_item(lisp_tree, hf_lisp_msrtr_auth, tvb, offset, authlen, ENC_NA); |
2716 | 2 | offset += authlen; |
2717 | 2 | } |
2718 | | |
2719 | 20 | next_tvb = tvb_new_subset_remaining(tvb, offset); |
2720 | 20 | call_data_dissector(next_tvb, pinfo, lisp_tree); |
2721 | 20 | } |
2722 | | |
2723 | | /* |
2724 | | * Dissector code for Map-Referral type control packets |
2725 | | * |
2726 | | * 0 1 2 3 |
2727 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
2728 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2729 | | * |Type=6 | Reserved | Record Count | |
2730 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2731 | | * | Nonce . . . | |
2732 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2733 | | * | . . . Nonce | |
2734 | | * +-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2735 | | * | | Record TTL | |
2736 | | * | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2737 | | * R | Referral Count| EID mask-len | ACT |A|I| Reserved | |
2738 | | * e +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2739 | | * c |SigCnt | Map Version Number | EID-AFI | |
2740 | | * o +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2741 | | * r | EID-prefix ... | |
2742 | | * d +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2743 | | * | /| Priority | Weight | M Priority | M Weight | |
2744 | | * | L +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2745 | | * | o | Unused Flags |R| Loc/LCAF-AFI | |
2746 | | * | c +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2747 | | * | \| Locator ... | |
2748 | | * +-> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2749 | | * |
2750 | | */ |
2751 | | |
2752 | | static void |
2753 | | dissect_lisp_map_referral(tvbuff_t *tvb, packet_info *pinfo, proto_tree *lisp_tree) |
2754 | 31 | { |
2755 | 31 | int i; |
2756 | 31 | int offset = 0; |
2757 | 31 | uint8_t rec_cnt = 0; |
2758 | 31 | tvbuff_t *next_tvb; |
2759 | | |
2760 | | /* Reserved bits (20 bits) */ |
2761 | 31 | proto_tree_add_item(lisp_tree, hf_lisp_mref_res, tvb, offset, 3, ENC_BIG_ENDIAN); |
2762 | 31 | offset += 3; |
2763 | | |
2764 | | /* Record count (8 bits) */ |
2765 | 31 | rec_cnt = tvb_get_uint8(tvb, offset); |
2766 | 31 | proto_tree_add_item(lisp_tree, hf_lisp_records, tvb, offset, 1, ENC_BIG_ENDIAN); |
2767 | 31 | offset += 1; |
2768 | | |
2769 | | /* Nonce (64 bits) */ |
2770 | 31 | proto_tree_add_item(lisp_tree, hf_lisp_nonce, tvb, offset, 8, ENC_BIG_ENDIAN); |
2771 | 31 | offset += 8; |
2772 | | |
2773 | | /* Referral records */ |
2774 | 932 | for(i=0; i < rec_cnt; i++) { |
2775 | 901 | offset = dissect_lisp_mapping(tvb, pinfo, lisp_tree, rec_cnt, i+1, true, offset, NULL); |
2776 | 901 | } |
2777 | | |
2778 | 31 | next_tvb = tvb_new_subset_remaining(tvb, offset); |
2779 | 31 | call_data_dissector(next_tvb, pinfo, lisp_tree); |
2780 | 31 | } |
2781 | | |
2782 | | |
2783 | | /* |
2784 | | * Dissector code for Info type control packets |
2785 | | * |
2786 | | * 0 1 2 3 |
2787 | | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
2788 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2789 | | * |Type=7 |R| Reserved | |
2790 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2791 | | * | Nonce . . . | |
2792 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2793 | | * | . . . Nonce | |
2794 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2795 | | * | Key ID | Authentication Data Length | |
2796 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2797 | | * ~ Authentication Data ~ |
2798 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2799 | | * | TTL | |
2800 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2801 | | * | Reserved | EID mask-len | EID-prefix-AFI | |
2802 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2803 | | * | EID-prefix | |
2804 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2805 | | * | AFI | ... |
2806 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2807 | | * |
2808 | | */ |
2809 | | |
2810 | | static void |
2811 | | dissect_lisp_info(tvbuff_t *tvb, packet_info *pinfo, proto_tree *lisp_tree) |
2812 | 6 | { |
2813 | 6 | int offset = 0; |
2814 | 6 | tvbuff_t *next_tvb; |
2815 | 6 | uint8_t flags; |
2816 | 6 | bool reply; |
2817 | 6 | uint16_t authlen = 0; |
2818 | 6 | uint8_t prefix_mask; |
2819 | 6 | uint16_t prefix_afi, afi; |
2820 | 6 | const char *prefix; |
2821 | 6 | uint16_t addr_len = 0; |
2822 | 6 | proto_item *tir, *ti_prefix; |
2823 | 6 | proto_tree *prefix_tree; |
2824 | | |
2825 | | /* Flags (1 bit) */ |
2826 | 6 | flags = tvb_get_uint8(tvb, offset); |
2827 | 6 | reply = flags & (INFO_FLAG_R >> 16); |
2828 | | |
2829 | 6 | if (reply) |
2830 | 3 | col_append_str(pinfo->cinfo, COL_INFO, "-Reply"); |
2831 | 3 | else |
2832 | 3 | col_append_str(pinfo->cinfo, COL_INFO, "-Request"); |
2833 | | |
2834 | 6 | proto_tree_add_item(lisp_tree, hf_lisp_info_r, tvb, offset, 3, ENC_BIG_ENDIAN); |
2835 | | |
2836 | | /* Reserved bits (27 bits) */ |
2837 | 6 | proto_tree_add_item(lisp_tree, hf_lisp_info_res1, tvb, offset, 4, ENC_BIG_ENDIAN); |
2838 | 6 | offset += 4; |
2839 | | |
2840 | | /* Nonce (64 bits) */ |
2841 | 6 | proto_tree_add_item(lisp_tree, hf_lisp_nonce, tvb, offset, 8, ENC_BIG_ENDIAN); |
2842 | 6 | offset += 8; |
2843 | | |
2844 | | /* Key ID (16 bits) */ |
2845 | 6 | proto_tree_add_item(lisp_tree, hf_lisp_keyid, tvb, offset, 2, ENC_BIG_ENDIAN); |
2846 | 6 | offset += 2; |
2847 | | |
2848 | | /* Authentication Data Length (16 bits) */ |
2849 | 6 | proto_tree_add_item_ret_uint16(lisp_tree, hf_lisp_authlen, tvb, offset, 2, ENC_BIG_ENDIAN, &authlen); |
2850 | 6 | offset += 2; |
2851 | | |
2852 | | /* Authentication Data */ |
2853 | | /* XXX: need to check is there is still enough data in buffer */ |
2854 | 6 | proto_tree_add_item(lisp_tree, hf_lisp_auth, tvb, offset, authlen, ENC_NA); |
2855 | 6 | offset += authlen; |
2856 | | |
2857 | | /* TTL */ |
2858 | 6 | proto_tree_add_item(lisp_tree, hf_lisp_info_ttl, tvb, offset, 4, ENC_BIG_ENDIAN); |
2859 | 6 | offset += 4; |
2860 | | |
2861 | | /* Reserved bits (8 bits) */ |
2862 | 6 | proto_tree_add_item(lisp_tree, hf_lisp_info_res2, tvb, offset, 1, ENC_BIG_ENDIAN); |
2863 | 6 | offset += 1; |
2864 | | |
2865 | 6 | prefix_tree = proto_tree_add_subtree(lisp_tree, tvb, offset, 3, ett_lisp_info_prefix, &ti_prefix, "EID Prefix: "); |
2866 | | |
2867 | 6 | proto_tree_add_item(prefix_tree, hf_lisp_info_prefix_masklen, tvb, offset, 1, ENC_BIG_ENDIAN); |
2868 | 6 | prefix_mask = tvb_get_uint8(tvb, offset); offset += 1; |
2869 | | |
2870 | 6 | proto_tree_add_item_ret_uint16(prefix_tree, hf_lisp_info_prefix_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &prefix_afi); |
2871 | 6 | offset += 2; |
2872 | | |
2873 | 6 | prefix = get_addr_str(tvb, pinfo, offset, prefix_afi, &addr_len); |
2874 | | |
2875 | 6 | if (prefix == NULL) { |
2876 | 1 | expert_add_info_format(pinfo, lisp_tree, &ei_lisp_unexpected_field, |
2877 | 1 | "Unexpected EID prefix AFI (%d), cannot decode", prefix_afi); |
2878 | 1 | next_tvb = tvb_new_subset_remaining(tvb, offset); |
2879 | 1 | call_data_dissector(next_tvb, pinfo, lisp_tree); |
2880 | 1 | return; |
2881 | 1 | } |
2882 | | |
2883 | 5 | switch (prefix_afi) { |
2884 | 0 | case AFNUM_IP: |
2885 | 0 | proto_tree_add_item(prefix_tree, hf_lisp_info_prefix_ipv4, tvb, offset, INET_ADDRLEN, ENC_BIG_ENDIAN); |
2886 | 0 | break; |
2887 | 0 | case AFNUM_IP6: |
2888 | 0 | proto_tree_add_item(prefix_tree, hf_lisp_info_prefix_ipv6, tvb, offset, INET6_ADDRLEN, ENC_NA); |
2889 | 0 | break; |
2890 | 5 | } |
2891 | | |
2892 | 3 | proto_item_append_text(ti_prefix, "%s/%d", prefix, prefix_mask); |
2893 | 3 | proto_item_set_len(ti_prefix, 3 + addr_len); |
2894 | 3 | offset += addr_len; |
2895 | | |
2896 | | /* Update the INFO column */ |
2897 | 3 | col_append_fstr(pinfo->cinfo, COL_INFO, " for %s/%d", prefix, prefix_mask); |
2898 | | |
2899 | 3 | tir = proto_tree_add_item_ret_uint16(lisp_tree, hf_lisp_info_afi, tvb, offset, 2, ENC_BIG_ENDIAN, &afi); |
2900 | 3 | offset += 2; |
2901 | | |
2902 | 3 | if (!reply) { |
2903 | 2 | if (afi != 0) { |
2904 | 1 | expert_add_info_format(pinfo, tir, &ei_lisp_expected_field, |
2905 | 1 | "Expecting NULL AFI (0), found %d, incorrect packet!", afi); |
2906 | 1 | } |
2907 | 2 | } else { |
2908 | 1 | if (afi != AFNUM_LISP_CANONICAL_ADDRESS_FORMAT) { |
2909 | 1 | expert_add_info_format(pinfo, tir, &ei_lisp_expected_field, |
2910 | 1 | "Expecting LCAF AFI (%d), found %d, incorrect packet!", |
2911 | 1 | AFNUM_LISP_CANONICAL_ADDRESS_FORMAT, afi); |
2912 | 1 | } else { |
2913 | 0 | offset = dissect_lcaf(tvb, pinfo, lisp_tree, offset, NULL); |
2914 | 0 | } |
2915 | 1 | } |
2916 | | |
2917 | 3 | next_tvb = tvb_new_subset_remaining(tvb, offset); |
2918 | 3 | call_data_dissector(next_tvb, pinfo, lisp_tree); |
2919 | 3 | } |
2920 | | |
2921 | | |
2922 | | /* |
2923 | | * Dissector code for Encapsulated Control Message type packets |
2924 | | * |
2925 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2926 | | * |Type=8 |S|D| Reserved | |
2927 | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
2928 | | * | IPv4 or IPv6 Header | |
2929 | | * | (uses RLOC or EID addresses) | |
2930 | | * ~ ~ |
2931 | | * |
2932 | | */ |
2933 | | |
2934 | | static void |
2935 | | dissect_lisp_ecm(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_tree *lisp_tree) |
2936 | 10 | { |
2937 | 10 | tvbuff_t *next_tvb; |
2938 | 10 | uint8_t flags; |
2939 | 10 | uint8_t ip_ver; |
2940 | | |
2941 | | /* Flags (2 bits) */ |
2942 | 10 | flags = tvb_get_uint8(tvb, 0); |
2943 | 10 | ddt_originated = flags & (ECM_FLAG_D >> 24); |
2944 | | |
2945 | 10 | proto_tree_add_item(lisp_tree, hf_lisp_ecm_flags_sec, tvb, 0, 4, ENC_BIG_ENDIAN); |
2946 | 10 | proto_tree_add_item(lisp_tree, hf_lisp_ecm_flags_ddt, tvb, 0, 4, ENC_BIG_ENDIAN); |
2947 | 10 | proto_tree_add_item(lisp_tree, hf_lisp_ecm_res, tvb, 0, 4, ENC_BIG_ENDIAN); |
2948 | | |
2949 | | /* Determine if encapsulated packet is IPv4 or IPv6, and call dissector */ |
2950 | 10 | next_tvb = tvb_new_subset_remaining(tvb, LISP_ECM_HEADER_LEN); |
2951 | 10 | ip_ver = tvb_get_bits8(next_tvb, 0, 4); |
2952 | | |
2953 | 10 | switch (ip_ver) { |
2954 | 1 | case 4: |
2955 | 1 | call_dissector(ipv4_handle, next_tvb, pinfo, tree); |
2956 | 1 | break; |
2957 | 8 | case 6: |
2958 | 8 | call_dissector(ipv6_handle, next_tvb, pinfo, tree); |
2959 | 8 | break; |
2960 | 1 | default: |
2961 | 1 | call_data_dissector(next_tvb, pinfo, tree); |
2962 | 1 | break; |
2963 | 10 | } |
2964 | 3 | encapsulated = false; |
2965 | 3 | } |
2966 | | |
2967 | | |
2968 | | /* |
2969 | | * Main dissector code |
2970 | | */ |
2971 | | |
2972 | | static int |
2973 | | dissect_lisp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) |
2974 | 188 | { |
2975 | 188 | uint8_t type; |
2976 | | |
2977 | 188 | proto_tree *lisp_tree = NULL; |
2978 | | |
2979 | | /* Clear Info column before fetching data in case an exception is thrown */ |
2980 | 188 | col_clear(pinfo->cinfo, COL_INFO); |
2981 | | |
2982 | 188 | type = tvb_get_bits8(tvb, 0, 4); |
2983 | | |
2984 | | /* Make entries in Protocol column and Info column on summary display */ |
2985 | 188 | col_set_str(pinfo->cinfo, COL_PROTOCOL, "LISP"); |
2986 | | |
2987 | 188 | if (encapsulated) { |
2988 | 119 | col_add_fstr(pinfo->cinfo, COL_INFO, "Encapsulated %s", val_to_str(pinfo->pool, type, lisp_typevals, |
2989 | 119 | "Unknown LISP Control Packet (%d)")); |
2990 | 119 | } else { |
2991 | 69 | col_add_str(pinfo->cinfo, COL_INFO, val_to_str(pinfo->pool, type, lisp_typevals, |
2992 | 69 | "Unknown LISP Control Packet (%d)")); |
2993 | 69 | } |
2994 | | |
2995 | 188 | if (ddt_originated) { |
2996 | 5 | col_append_str(pinfo->cinfo, COL_INFO, " (DDT-originated)"); |
2997 | 5 | ddt_originated = false; |
2998 | 5 | } |
2999 | | |
3000 | 188 | if (tree) { |
3001 | 188 | proto_item *ti; |
3002 | | |
3003 | | /* create display subtree for the protocol */ |
3004 | 188 | ti = proto_tree_add_item(tree, proto_lisp, tvb, 0, |
3005 | 188 | (type == LISP_ECM) ? LISP_ECM_HEADER_LEN : -1, ENC_NA); |
3006 | | |
3007 | 188 | lisp_tree = proto_item_add_subtree(ti, ett_lisp); |
3008 | | |
3009 | 188 | proto_tree_add_item(lisp_tree, |
3010 | 188 | hf_lisp_type, tvb, 0, 3, ENC_BIG_ENDIAN); |
3011 | 188 | } |
3012 | | |
3013 | | /* Sub-dissectors are indirectly called by the following and thus |
3014 | | this code should be executed whether or not tree==NULL. |
3015 | | */ |
3016 | 188 | switch (type) { |
3017 | 9 | case LISP_MAP_REQUEST: |
3018 | 9 | dissect_lisp_map_request(tvb, pinfo, lisp_tree); |
3019 | 9 | break; |
3020 | 97 | case LISP_MAP_REPLY: |
3021 | 97 | dissect_lisp_map_reply(tvb, pinfo, lisp_tree); |
3022 | 97 | break; |
3023 | 14 | case LISP_MAP_REGISTER: |
3024 | 14 | dissect_lisp_map_register(tvb, pinfo, lisp_tree, 0, NULL, true); |
3025 | 14 | break; |
3026 | 20 | case LISP_MAP_NOTIFY: |
3027 | 20 | dissect_lisp_map_notify(tvb, pinfo, lisp_tree); |
3028 | 20 | break; |
3029 | 31 | case LISP_MAP_REFERRAL: |
3030 | 31 | dissect_lisp_map_referral(tvb, pinfo, lisp_tree); |
3031 | 31 | break; |
3032 | 6 | case LISP_INFO: |
3033 | 6 | dissect_lisp_info(tvb, pinfo, lisp_tree); |
3034 | 6 | break; |
3035 | 10 | case LISP_ECM: |
3036 | 10 | encapsulated = true; |
3037 | 10 | dissect_lisp_ecm(tvb, pinfo, tree, lisp_tree); |
3038 | 10 | break; |
3039 | 1 | default: |
3040 | 1 | call_data_dissector(tvb, pinfo, tree); |
3041 | 1 | break; |
3042 | 188 | } |
3043 | | |
3044 | | /* Return the amount of data this dissector was able to dissect */ |
3045 | 47 | return tvb_reported_length(tvb); |
3046 | 188 | } |
3047 | | |
3048 | | |
3049 | | /* |
3050 | | * Register the LISP protocol with Wireshark |
3051 | | */ |
3052 | | |
3053 | | void |
3054 | | proto_register_lisp(void) |
3055 | 16 | { |
3056 | | /* Setup list of header fields */ |
3057 | 16 | static hf_register_info hf[] = { |
3058 | 16 | { &hf_lisp_type, |
3059 | 16 | { "Type", "lisp.type", |
3060 | 16 | FT_UINT24, BASE_DEC, VALS(lisp_typevals), 0xF00000, "LISP Control Message Type", HFILL }}, |
3061 | 16 | { &hf_lisp_irc, |
3062 | 16 | { "ITR-RLOC Count", "lisp.irc", |
3063 | 16 | FT_UINT24, BASE_DEC, NULL, 0x00001F, NULL, HFILL }}, |
3064 | 16 | { &hf_lisp_records, |
3065 | 16 | { "Record Count", "lisp.records", |
3066 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3067 | 16 | { &hf_lisp_nonce, |
3068 | 16 | { "Nonce", "lisp.nonce", |
3069 | 16 | FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3070 | 16 | { &hf_lisp_mreq_flags, |
3071 | 16 | { "Flags", "lisp.mreq.flags", |
3072 | 16 | FT_UINT24, BASE_HEX, NULL, 0x0FC000, NULL, HFILL }}, |
3073 | 16 | { &hf_lisp_mreq_flags_auth, |
3074 | 16 | { "A bit (Authoritative)", "lisp.mreq.flags.auth", |
3075 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REQ_FLAG_A, NULL, HFILL }}, |
3076 | 16 | { &hf_lisp_mreq_flags_mrp, |
3077 | 16 | { "M bit (Map-Reply present)", "lisp.mreq.flags.mrp", |
3078 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REQ_FLAG_M, NULL, HFILL }}, |
3079 | 16 | { &hf_lisp_mreq_flags_probe, |
3080 | 16 | { "P bit (Probe)", "lisp.mreq.flags.probe", |
3081 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REQ_FLAG_P, NULL, HFILL }}, |
3082 | 16 | { &hf_lisp_mreq_flags_smr, |
3083 | 16 | { "S bit (Solicit-Map-Request)", "lisp.mreq.flags.smr", |
3084 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REQ_FLAG_S, NULL, HFILL }}, |
3085 | 16 | { &hf_lisp_mreq_flags_pitr, |
3086 | 16 | { "p bit (Proxy ITR)", "lisp.mreq.flags.pitr", |
3087 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REQ_FLAG_p, NULL, HFILL }}, |
3088 | 16 | { &hf_lisp_mreq_flags_smri, |
3089 | 16 | { "s bit (SMR-invoked)", "lisp.mreq.flags.smri", |
3090 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REQ_FLAG_s, NULL, HFILL }}, |
3091 | 16 | { &hf_lisp_mreq_res, |
3092 | 16 | { "Reserved bits", "lisp.mreq.res", |
3093 | 16 | FT_UINT24, BASE_HEX, NULL, MAP_REQ_RESERVED, "Must be zero", HFILL }}, |
3094 | 16 | { &hf_lisp_mreq_srceid_afi, |
3095 | 16 | { "Source EID AFI", "lisp.mreq.srceid.afi", |
3096 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, "Source EID Address Family Indicator", HFILL }}, |
3097 | 16 | { &hf_lisp_mreq_srceid_string, |
3098 | 16 | { "Source EID", "lisp.mreq.srceid.string", |
3099 | 16 | FT_STRING, BASE_NONE, NULL, 0x0, "Source EID Address", HFILL }}, |
3100 | 16 | { &hf_lisp_mreq_srceid_ipv4, |
3101 | 16 | { "Source EID", "lisp.mreq.srceid.ipv4", |
3102 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, "Source EID Address", HFILL }}, |
3103 | 16 | { &hf_lisp_mreq_srceid_ipv6, |
3104 | 16 | { "Source EID", "lisp.mreq.srceid_ipv6", |
3105 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, "Source EID Address", HFILL }}, |
3106 | 16 | { &hf_lisp_mreq_srceid_mac, |
3107 | 16 | { "Source EID", "lisp.mreq.srceid.mac", |
3108 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3109 | 16 | { &hf_lisp_mreq_itr_rloc, |
3110 | 16 | { "ITR-RLOC", "lisp.mreq.itr_rloc", |
3111 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, "Originating ITR RLOC Address", HFILL }}, |
3112 | 16 | { &hf_lisp_mreq_itr_rloc_afi, |
3113 | 16 | { "ITR-RLOC AFI", "lisp.mreq.itr_rloc.afi", |
3114 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, "Originating ITR RLOC Address Family Indicator", HFILL }}, |
3115 | 16 | { &hf_lisp_mreq_itr_rloc_ipv4, |
3116 | 16 | { "ITR-RLOC Address", "lisp.mreq.itr_rloc_ipv4", |
3117 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, "Originating ITR RLOC Address", HFILL }}, |
3118 | 16 | { &hf_lisp_mreq_itr_rloc_ipv6, |
3119 | 16 | { "ITR-RLOC Address", "lisp.mreq.itr_rloc_ipv6", |
3120 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, "Originating ITR RLOC Address", HFILL }}, |
3121 | 16 | { &hf_lisp_mreq_record_res, |
3122 | 16 | { "Reserved", "lisp.mreq.record.res", |
3123 | 16 | FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3124 | 16 | { &hf_lisp_mreq_record_prefix_length, |
3125 | 16 | { "Prefix Length", "lisp.mreq.record.prefix.length", |
3126 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3127 | 16 | { &hf_lisp_mreq_record_prefix_afi, |
3128 | 16 | { "Prefix AFI", "lisp.mreq.record.prefix.afi", |
3129 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3130 | 16 | { &hf_lisp_mreq_record_prefix_ipv4, |
3131 | 16 | { "Prefix", "lisp.mreq.record.prefix.ipv4", |
3132 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3133 | 16 | { &hf_lisp_mreq_record_prefix_ipv6, |
3134 | 16 | { "Prefix", "lisp.mreq.record.prefix.ipv6", |
3135 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3136 | 16 | { &hf_lisp_mreq_record_prefix_mac, |
3137 | 16 | { "Prefix", "lisp.mreq.record.prefix.mac", |
3138 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3139 | 16 | { &hf_lisp_mreq_record_prefix_dn, |
3140 | 16 | { "Prefix", "lisp.mreq.record.prefix.dn", |
3141 | 16 | FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3142 | 16 | { &hf_lisp_mreq_record, |
3143 | 16 | { "Map-Request Record", "lisp.mreq.record", |
3144 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3145 | 16 | { &hf_lisp_mrep_record, |
3146 | 16 | { "Map-Reply Record", "lisp.mrep.record", |
3147 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3148 | 16 | { &hf_lisp_mrep_flags_probe, |
3149 | 16 | { "P bit (Probe)", "lisp.mrep.flags.probe", |
3150 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REP_FLAG_P, NULL, HFILL }}, |
3151 | 16 | { &hf_lisp_mrep_flags_enlr, |
3152 | 16 | { "E bit (Echo-Nonce locator reachability algorithm enabled)", "lisp.mrep.flags.enlr", |
3153 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REP_FLAG_E, NULL, HFILL }}, |
3154 | 16 | { &hf_lisp_mrep_flags_sec, |
3155 | 16 | { "S bit (LISP-SEC capable)", "lisp.mrep.flags.sec", |
3156 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REP_FLAG_S, NULL, HFILL }}, |
3157 | 16 | { &hf_lisp_mrep_res, |
3158 | 16 | { "Reserved bits", "lisp.mrep.res", |
3159 | 16 | FT_UINT24, BASE_HEX, NULL, MAP_REP_RESERVED, "Must be zero", HFILL }}, |
3160 | 16 | { &hf_lisp_mreg_flags_pmr, |
3161 | 16 | { "P bit (Proxy-Map-Reply)", "lisp.mreg.flags.pmr", |
3162 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REG_FLAG_P, NULL, HFILL }}, |
3163 | 16 | { &hf_lisp_mreg_flags_sec, |
3164 | 16 | { "S bit (LISP-SEC capable)", "lisp.mreg.flags.sec", |
3165 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REG_FLAG_S, NULL, HFILL }}, |
3166 | 16 | { &hf_lisp_mreg_flags_xtrid, |
3167 | 16 | { "I bit (xTR-ID present)", "lisp.mreg.flags.xtrid", |
3168 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REG_FLAG_I, NULL, HFILL }}, |
3169 | 16 | { &hf_lisp_mreg_flags_rtr, |
3170 | 16 | { "R bit (Built for an RTR)", "lisp.mreg.flags.rtr", |
3171 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REG_FLAG_R, NULL, HFILL }}, |
3172 | 16 | { &hf_lisp_mreg_flags_wmn, |
3173 | 16 | { "M bit (Want-Map-Notify)", "lisp.mreg.flags.wmn", |
3174 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_REG_FLAG_M, NULL, HFILL }}, |
3175 | 16 | { &hf_lisp_mreg_res, |
3176 | 16 | { "Reserved bits", "lisp.mreg.res", |
3177 | 16 | FT_UINT24, BASE_HEX, NULL, MAP_REG_RESERVED, "Must be zero", HFILL }}, |
3178 | 16 | { &hf_lisp_mref_res, |
3179 | 16 | { "Reserved bits", "lisp.mref.res", |
3180 | 16 | FT_UINT24, BASE_HEX, NULL, MAP_REF_RESERVED, "Must be zero", HFILL }}, |
3181 | 16 | { &hf_lisp_keyid, |
3182 | 16 | { "Key ID", "lisp.keyid", |
3183 | 16 | FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3184 | 16 | { &hf_lisp_authlen, |
3185 | 16 | { "Authentication Data Length", "lisp.authlen", |
3186 | 16 | FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3187 | 16 | { &hf_lisp_auth, |
3188 | 16 | { "Authentication Data", "lisp.auth", |
3189 | 16 | FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3190 | 16 | { &hf_lisp_msrtr_keyid, |
3191 | 16 | { "MS-RTR Key ID", "lisp.msrtr.keyid", |
3192 | 16 | FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3193 | 16 | { &hf_lisp_msrtr_authlen, |
3194 | 16 | { "MS-RTR Authentication Data Length", "lisp.msrtr.authlen", |
3195 | 16 | FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3196 | 16 | { &hf_lisp_msrtr_auth, |
3197 | 16 | { "MS-RTR Authentication Data", "lisp.msrtr.auth", |
3198 | 16 | FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3199 | 16 | { &hf_lisp_xtrid, |
3200 | 16 | { "xTR-ID", "lisp.xtrid", |
3201 | 16 | FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3202 | 16 | { &hf_lisp_siteid, |
3203 | 16 | { "Site-ID", "lisp.siteid", |
3204 | 16 | FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3205 | 16 | { &hf_lisp_mnot_flags_xtrid, |
3206 | 16 | { "I bit (xTR-ID present)", "lisp.mnot.flags.xtrid", |
3207 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_NOT_FLAG_I, NULL, HFILL }}, |
3208 | 16 | { &hf_lisp_mnot_flags_rtr, |
3209 | 16 | { "R bit (Built for an RTR)", "lisp.mnot.flags.rtr", |
3210 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), MAP_NOT_FLAG_R, NULL, HFILL }}, |
3211 | 16 | { &hf_lisp_mnot_res, |
3212 | 16 | { "Reserved bits", "lisp.mnot.res", |
3213 | 16 | FT_UINT24, BASE_HEX, NULL, MAP_NOT_RESERVED, "Must be zero", HFILL }}, |
3214 | 16 | { &hf_lisp_info_r, |
3215 | 16 | { "R bit (Info-Reply)", "lisp.info.r", |
3216 | 16 | FT_BOOLEAN, 24, TFS(&tfs_set_notset), INFO_FLAG_R, NULL, HFILL }}, |
3217 | 16 | { &hf_lisp_info_res1, |
3218 | 16 | { "Reserved bits", "lisp.info.res1", |
3219 | 16 | FT_UINT32, BASE_HEX, NULL, INFO_RESERVED, "Must be zero", HFILL }}, |
3220 | 16 | { &hf_lisp_info_ttl, |
3221 | 16 | { "TTL", "lisp.info.ttl", |
3222 | 16 | FT_UINT32, BASE_DEC, NULL, 0x0, "RTR information time-to-live", HFILL }}, |
3223 | 16 | { &hf_lisp_info_res2, |
3224 | 16 | { "Reserved bits", "lisp.info.res2", |
3225 | 16 | FT_UINT8, BASE_HEX, NULL, 0xFF, "Must be zero", HFILL }}, |
3226 | 16 | { &hf_lisp_info_prefix_masklen, |
3227 | 16 | { "EID Prefix Mask Length", "lisp.info.prefix.masklen", |
3228 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3229 | 16 | { &hf_lisp_info_prefix_afi, |
3230 | 16 | { "Prefix AFI", "lisp.info.prefix.afi", |
3231 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3232 | 16 | { &hf_lisp_info_prefix_ipv4, |
3233 | 16 | { "Prefix", "lisp.info.prefix.ipv4", |
3234 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3235 | 16 | { &hf_lisp_info_prefix_ipv6, |
3236 | 16 | { "Prefix", "lisp.info.prefix.ipv6", |
3237 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3238 | 16 | { &hf_lisp_info_afi, |
3239 | 16 | { "AFI", "lisp.info.afi", |
3240 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, "Address Family Indicator", HFILL }}, |
3241 | 16 | { &hf_lisp_loc, |
3242 | 16 | { "Locator Record", "lisp.loc", |
3243 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3244 | 16 | { &hf_lisp_loc_priority, |
3245 | 16 | { "Priority", "lisp.loc.priority", |
3246 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3247 | 16 | { &hf_lisp_loc_weight, |
3248 | 16 | { "Weight", "lisp.loc.weight", |
3249 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3250 | 16 | { &hf_lisp_loc_mpriority, |
3251 | 16 | { "Multicast Priority", "lisp.loc.multicast_priority", |
3252 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3253 | 16 | { &hf_lisp_loc_mweight, |
3254 | 16 | { "Multicast Weight", "lisp.loc.multicast_weight", |
3255 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3256 | 16 | { &hf_lisp_loc_flags, |
3257 | 16 | { "Flags", "lisp.loc.flags", |
3258 | 16 | FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3259 | 16 | { &hf_lisp_loc_flags_local, |
3260 | 16 | { "Local", "lisp.loc.flags.local", |
3261 | 16 | FT_BOOLEAN, 16, TFS(&tfs_set_notset), LOCAL_BIT_MASK, NULL, HFILL }}, |
3262 | 16 | { &hf_lisp_loc_flags_probe, |
3263 | 16 | { "Probe", "lisp.loc.flags.probe", |
3264 | 16 | FT_BOOLEAN, 16, TFS(&tfs_set_notset), PROBE_BIT_MASK, NULL, HFILL }}, |
3265 | 16 | { &hf_lisp_loc_flags_reach, |
3266 | 16 | { "Reachable", "lisp.loc.flags.reach", |
3267 | 16 | FT_BOOLEAN, 16, TFS(&tfs_set_notset), REACH_BIT_MASK, NULL, HFILL }}, |
3268 | 16 | { &hf_lisp_loc_flags_res, |
3269 | 16 | { "Reserved", "lisp.loc.flags.res", |
3270 | 16 | FT_UINT16, BASE_HEX, NULL, 0xFFF8, "Must be zero", HFILL }}, |
3271 | 16 | { &hf_lisp_loc_afi, |
3272 | 16 | { "AFI", "lisp.loc.afi", |
3273 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3274 | 16 | { &hf_lisp_loc_locator, |
3275 | 16 | { "Locator", "lisp.loc.locator", |
3276 | 16 | FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3277 | 16 | { &hf_lisp_mapping, |
3278 | 16 | { "Mapping Record", "lisp.mapping", |
3279 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3280 | 16 | { &hf_lisp_mapping_ttl, |
3281 | 16 | { "Record TTL", "lisp.mapping.ttl", |
3282 | 16 | FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3283 | 16 | { &hf_lisp_mapping_loccnt, |
3284 | 16 | { "Locator Count", "lisp.mapping.loccnt", |
3285 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3286 | 16 | { &hf_lisp_mapping_eid_masklen, |
3287 | 16 | { "EID Mask Length", "lisp.mapping.eid.masklen", |
3288 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3289 | 16 | { &hf_lisp_mapping_act, |
3290 | 16 | { "Action", "lisp.mapping.act", |
3291 | 16 | FT_UINT16, BASE_DEC, VALS(mapping_actions), 0xE000, NULL, HFILL }}, |
3292 | 16 | { &hf_lisp_mapping_auth, |
3293 | 16 | { "Authoritative bit", "lisp.mapping.auth", |
3294 | 16 | FT_BOOLEAN, 16, TFS(&tfs_set_notset), LISP_MAP_AUTH, NULL, HFILL }}, |
3295 | 16 | { &hf_lisp_referral_incomplete, |
3296 | 16 | { "Incomplete", "lisp.referral.incomplete", |
3297 | 16 | FT_BOOLEAN, 16, TFS(&tfs_set_notset), REFERRAL_INCOMPLETE, NULL, HFILL }}, |
3298 | 16 | { &hf_lisp_mapping_res1, |
3299 | 16 | { "Reserved", "lisp.mapping.res1", |
3300 | 16 | FT_UINT16, BASE_HEX, NULL, 0x07FF, NULL, HFILL }}, |
3301 | 16 | { &hf_lisp_mapping_res2, |
3302 | 16 | { "Reserved", "lisp.mapping.res2", |
3303 | 16 | FT_UINT16, BASE_HEX, NULL, 0xF000, NULL, HFILL }}, |
3304 | 16 | { &hf_lisp_mapping_ver, |
3305 | 16 | { "Mapping Version", "lisp.mapping.ver", |
3306 | 16 | FT_UINT16, BASE_DEC, NULL, 0x0FFF, NULL, HFILL }}, |
3307 | 16 | { &hf_lisp_referral_sigcnt, |
3308 | 16 | { "Signature Count", "lisp.referral.sigcnt", |
3309 | 16 | FT_UINT16, BASE_DEC, NULL, 0xF000, NULL, HFILL }}, |
3310 | 16 | { &hf_lisp_mapping_eid_afi, |
3311 | 16 | { "EID Prefix AFI", "lisp.mapping.eid.afi", |
3312 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3313 | 16 | { &hf_lisp_mapping_eid_ipv4, |
3314 | 16 | { "EID Prefix", "lisp.mapping.eid.ipv4", |
3315 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3316 | 16 | { &hf_lisp_mapping_eid_ipv6, |
3317 | 16 | { "EID Prefix", "lisp.mapping.eid.ipv6", |
3318 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3319 | 16 | { &hf_lisp_mapping_eid_mac, |
3320 | 16 | { "EID Prefix", "lisp.mapping.eid.mac", |
3321 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3322 | 16 | { &hf_lisp_mapping_eid_dn, |
3323 | 16 | { "EID Prefix", "lisp.mapping.eid.dn", |
3324 | 16 | FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3325 | 16 | { &hf_lisp_ecm_flags_sec, |
3326 | 16 | { "S bit (LISP-SEC capable)", "lisp.ecm.flags.sec", |
3327 | 16 | FT_BOOLEAN, 32, TFS(&tfs_set_notset), ECM_FLAG_S, NULL, HFILL }}, |
3328 | 16 | { &hf_lisp_ecm_flags_ddt, |
3329 | 16 | { "D bit (DDT-originated)", "lisp.ecm.flags.ddt", |
3330 | 16 | FT_BOOLEAN, 32, TFS(&tfs_set_notset), ECM_FLAG_D, NULL, HFILL }}, |
3331 | 16 | { &hf_lisp_ecm_res, |
3332 | 16 | { "Reserved bits", "lisp.ecm.res", |
3333 | 16 | FT_UINT32, BASE_HEX, NULL, 0x03FFFFFF, NULL, HFILL }}, |
3334 | 16 | { &hf_lisp_lcaf, |
3335 | 16 | { "LCAF", "lisp.lcaf", |
3336 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3337 | 16 | { &hf_lisp_lcaf_header, |
3338 | 16 | { "LCAF Header", "lisp.lcaf.header", |
3339 | 16 | FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3340 | 16 | { &hf_lisp_lcaf_res1, |
3341 | 16 | { "Reserved bits", "lisp.lcaf.res1", |
3342 | 16 | FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3343 | 16 | { &hf_lisp_lcaf_flags, |
3344 | 16 | { "Flags", "lisp.lcaf.flags", |
3345 | 16 | FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3346 | 16 | { &hf_lisp_lcaf_type, |
3347 | 16 | { "Type", "lisp.lcaf.type", |
3348 | 16 | FT_UINT8, BASE_DEC, VALS(lcaf_typevals), 0x0, "LISP LCAF Type", HFILL }}, |
3349 | 16 | { &hf_lisp_lcaf_res2, |
3350 | 16 | { "Reserved bits", "lisp.lcaf.res2", |
3351 | 16 | FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3352 | 16 | { &hf_lisp_lcaf_length, |
3353 | 16 | { "Length", "lisp.lcaf.length", |
3354 | 16 | FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3355 | 16 | { &hf_lisp_lcaf_afi_list_item, |
3356 | 16 | { "List Item", "lisp.lcaf.afi_list.item", |
3357 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, "AFI List Item", HFILL }}, |
3358 | 16 | { &hf_lisp_lcaf_afi_list_afi, |
3359 | 16 | { "List Item AFI", "lisp.lcaf.afi_list.afi", |
3360 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3361 | 16 | { &hf_lisp_lcaf_afi_list_ipv4, |
3362 | 16 | { "List Item Address", "lisp.lcaf.afi_list.ipv4", |
3363 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3364 | 16 | { &hf_lisp_lcaf_afi_list_ipv6, |
3365 | 16 | { "List Item Address", "lisp.lcaf.afi_list.ipv6", |
3366 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3367 | 16 | { &hf_lisp_lcaf_afi_list_mac, |
3368 | 16 | { "List Item Address", "lisp.lcaf.afi_list.mac", |
3369 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3370 | 16 | { &hf_lisp_lcaf_afi_list_dn, |
3371 | 16 | { "List Item Address", "lisp.lcaf.afi_list.dn", |
3372 | 16 | FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3373 | 16 | { &hf_lisp_lcaf_iid, |
3374 | 16 | { "Instance ID", "lisp.lcaf.iid", |
3375 | 16 | FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3376 | 16 | { &hf_lisp_lcaf_iid_afi, |
3377 | 16 | { "Address AFI", "lisp.lcaf.iid.afi", |
3378 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3379 | 16 | { &hf_lisp_lcaf_iid_ipv4, |
3380 | 16 | { "Address", "lisp.lcaf.iid.ipv4", |
3381 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3382 | 16 | { &hf_lisp_lcaf_iid_ipv6, |
3383 | 16 | { "Address", "lisp.lcaf.iid.ipv6", |
3384 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3385 | 16 | { &hf_lisp_lcaf_iid_mac, |
3386 | 16 | { "Address", "lisp.lcaf.iid.mac", |
3387 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3388 | 16 | { &hf_lisp_lcaf_iid_dn, |
3389 | 16 | { "Address", "lisp.lcaf.iid.dn", |
3390 | 16 | FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3391 | 16 | { &hf_lisp_lcaf_asn, |
3392 | 16 | { "AS Number", "lisp.lcaf.asn", |
3393 | 16 | FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3394 | 16 | { &hf_lisp_lcaf_asn_afi, |
3395 | 16 | { "Address AFI", "lisp.lcaf.asn.afi", |
3396 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3397 | 16 | { &hf_lisp_lcaf_asn_ipv4, |
3398 | 16 | { "Address", "lisp.lcaf.asn.ipv4", |
3399 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3400 | 16 | { &hf_lisp_lcaf_asn_ipv6, |
3401 | 16 | { "Address", "lisp.lcaf.asn.ipv6", |
3402 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3403 | 16 | { &hf_lisp_lcaf_asn_mac, |
3404 | 16 | { "Address", "lisp.lcaf.asn.mac", |
3405 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3406 | 16 | { &hf_lisp_lcaf_asn_dn, |
3407 | 16 | { "Address", "lisp.lcaf.asn.dn", |
3408 | 16 | FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3409 | 16 | { &hf_lisp_lcaf_geo_lat, |
3410 | 16 | { "Latitude", "lisp.lcaf.geo.lat", |
3411 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3412 | 16 | { &hf_lisp_lcaf_geo_lat_hemisphere, |
3413 | 16 | { "Hemisphere", "lisp.lcaf.geo.lat.hemisphere", |
3414 | 16 | FT_UINT16, BASE_DEC, VALS(lat_typevals), 0x8000, NULL, HFILL }}, |
3415 | 16 | { &hf_lisp_lcaf_geo_lat_deg, |
3416 | 16 | { "Degrees", "lisp.lcaf.geo.lat.deg", |
3417 | 16 | FT_UINT16, BASE_DEC, NULL, 0x7FFF, NULL, HFILL }}, |
3418 | 16 | { &hf_lisp_lcaf_geo_lat_min, |
3419 | 16 | { "Minutes", "lisp.lcaf.geo.lat.min", |
3420 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3421 | 16 | { &hf_lisp_lcaf_geo_lat_sec, |
3422 | 16 | { "Seconds", "lisp.lcaf.geo.lat.sec", |
3423 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3424 | 16 | { &hf_lisp_lcaf_geo_lon, |
3425 | 16 | { "Longitude", "lisp.lcaf.geo.lon", |
3426 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3427 | 16 | { &hf_lisp_lcaf_geo_lon_hemisphere, |
3428 | 16 | { "Hemisphere", "lisp.lcaf.geo.lon.hemisphere", |
3429 | 16 | FT_UINT16, BASE_DEC, VALS(lon_typevals), 0x8000, NULL, HFILL }}, |
3430 | 16 | { &hf_lisp_lcaf_geo_lon_deg, |
3431 | 16 | { "Degrees", "lisp.lcaf.geo.lon.deg", |
3432 | 16 | FT_UINT16, BASE_DEC, NULL, 0x7FFF, NULL, HFILL }}, |
3433 | 16 | { &hf_lisp_lcaf_geo_lon_min, |
3434 | 16 | { "Minutes", "lisp.lcaf.geo.lon.min", |
3435 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3436 | 16 | { &hf_lisp_lcaf_geo_lon_sec, |
3437 | 16 | { "Seconds", "lisp.lcaf.geo.lon.sec", |
3438 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3439 | 16 | { &hf_lisp_lcaf_geo_alt, |
3440 | 16 | { "Altitude", "lisp.lcaf.geo.alt", |
3441 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3442 | 16 | { &hf_lisp_lcaf_geo_afi, |
3443 | 16 | { "Address AFI", "lisp.lcaf.geo.afi", |
3444 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3445 | 16 | { &hf_lisp_lcaf_geo_ipv4, |
3446 | 16 | { "Address", "lisp.lcaf.geo.ipv4", |
3447 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3448 | 16 | { &hf_lisp_lcaf_geo_ipv6, |
3449 | 16 | { "Address", "lisp.lcaf.geo.ipv6", |
3450 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3451 | 16 | { &hf_lisp_lcaf_geo_mac, |
3452 | 16 | { "Address", "lisp.lcaf.geo.mac", |
3453 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3454 | 16 | { &hf_lisp_lcaf_geo_dn, |
3455 | 16 | { "Address", "lisp.lcaf.geo.dn", |
3456 | 16 | FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3457 | 16 | { &hf_lisp_lcaf_nonce_loc_res, |
3458 | 16 | { "Reserved bits", "lisp.lcaf.nonce_loc.res", |
3459 | 16 | FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3460 | 16 | { &hf_lisp_lcaf_nonce_loc, |
3461 | 16 | { "Nonce", "lisp.lcaf.nonce_loc", |
3462 | 16 | FT_UINT24, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3463 | 16 | { &hf_lisp_lcaf_nonce_loc_afi, |
3464 | 16 | { "Address AFI", "lisp.lcaf.nonce_loc.afi", |
3465 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3466 | 16 | { &hf_lisp_lcaf_nonce_loc_ipv4, |
3467 | 16 | { "Address", "lisp.lcaf.nonce_loc.ipv4", |
3468 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3469 | 16 | { &hf_lisp_lcaf_nonce_loc_ipv6, |
3470 | 16 | { "Address", "lisp.lcaf.nonce_loc.ipv6", |
3471 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3472 | 16 | { &hf_lisp_lcaf_nonce_loc_mac, |
3473 | 16 | { "Address", "lisp.lcaf.nonce_loc.mac", |
3474 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3475 | 16 | { &hf_lisp_lcaf_nonce_loc_dn, |
3476 | 16 | { "Address", "lisp.lcaf.nonce_loc.dn", |
3477 | 16 | FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3478 | 16 | { &hf_lisp_lcaf_mcinfo_flags, |
3479 | 16 | { "Multicast Info Flags", "lisp.lcaf.mcinfo.flags", |
3480 | 16 | FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3481 | 16 | { &hf_lisp_lcaf_mcinfo_flags_res, |
3482 | 16 | { "Reserved", "lisp.lcaf.mcinfo.flags.res", |
3483 | 16 | FT_UINT8, BASE_HEX, NULL, 0xF8, "Must be zero", HFILL }}, |
3484 | 16 | { &hf_lisp_lcaf_mcinfo_flags_rp, |
3485 | 16 | { "RP-bit", "lisp.lcaf.mcinfo.flags.rp", |
3486 | 16 | FT_BOOLEAN, 8, TFS(&tfs_set_notset), MCINFO_FLAG_R, NULL, HFILL }}, |
3487 | 16 | { &hf_lisp_lcaf_mcinfo_flags_leave, |
3488 | 16 | { "Leave (L-bit)", "lisp.lcaf.mcinfo.flags.leave", |
3489 | 16 | FT_BOOLEAN, 8, TFS(&tfs_set_notset), MCINFO_FLAG_L, NULL, HFILL }}, |
3490 | 16 | { &hf_lisp_lcaf_mcinfo_flags_join, |
3491 | 16 | { "Join (J-bit)", "lisp.lcaf_mcinfo.flags.join", |
3492 | 16 | FT_BOOLEAN, 8, TFS(&tfs_set_notset), MCINFO_FLAG_J, NULL, HFILL }}, |
3493 | 16 | { &hf_lisp_lcaf_mcinfo_iid, |
3494 | 16 | { "Instance ID", "lisp.lcaf.mcinfo_iid", |
3495 | 16 | FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3496 | 16 | { &hf_lisp_lcaf_mcinfo_res, |
3497 | 16 | { "Reserved bits", "lisp.lcaf.mcinfo.res", |
3498 | 16 | FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3499 | 16 | { &hf_lisp_lcaf_mcinfo_src_masklen, |
3500 | 16 | { "Source Mask Length", "lisp.lcaf.mcinfo.src.masklen", |
3501 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3502 | 16 | { &hf_lisp_lcaf_mcinfo_grp_masklen, |
3503 | 16 | { "Group Mask Length", "lisp.lcaf.mcinfo.grp.masklen", |
3504 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3505 | 16 | { &hf_lisp_lcaf_mcinfo_src, |
3506 | 16 | { "Source/Subnet Address", "lisp.lcaf.mcinfo.src", |
3507 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3508 | 16 | { &hf_lisp_lcaf_mcinfo_src_afi, |
3509 | 16 | { "Source/Subnet AFI", "lisp.lcaf.mcinfo.src.afi", |
3510 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3511 | 16 | { &hf_lisp_lcaf_mcinfo_src_ipv4, |
3512 | 16 | { "Source/Subnet Address", "lisp.lcaf.mcinfo.src.ipv4", |
3513 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3514 | 16 | { &hf_lisp_lcaf_mcinfo_src_ipv6, |
3515 | 16 | { "Source/Subnet Address", "lisp.lcaf.mcinfo.src.ipv6", |
3516 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3517 | 16 | { &hf_lisp_lcaf_mcinfo_grp, |
3518 | 16 | { "Group Address", "lisp.lcaf.mcinfo.grp", |
3519 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3520 | 16 | { &hf_lisp_lcaf_mcinfo_grp_afi, |
3521 | 16 | { "Group AFI", "lisp.lcaf.mcinfo.grp.afi", |
3522 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3523 | 16 | { &hf_lisp_lcaf_mcinfo_grp_ipv4, |
3524 | 16 | { "Group Address", "lisp.lcaf.mcinfo.grp.ipv4", |
3525 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3526 | 16 | { &hf_lisp_lcaf_mcinfo_grp_ipv6, |
3527 | 16 | { "Group Address", "lisp.lcaf.mcinfo.grp.ipv6", |
3528 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3529 | 16 | { &hf_lisp_lcaf_elp_hop, |
3530 | 16 | { "Reencap Hop", "lisp.lcaf.elp_hop", |
3531 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3532 | 16 | { &hf_lisp_lcaf_elp_hop_flags, |
3533 | 16 | { "Flags", "lisp.lcaf.elp_hop.flags", |
3534 | 16 | FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3535 | 16 | { &hf_lisp_lcaf_elp_hop_flags_res, |
3536 | 16 | { "Reserved", "lisp.lcaf.elp_hop.flags.res", |
3537 | 16 | FT_UINT16, BASE_HEX, NULL, 0xFFF8, "Must be zero", HFILL }}, |
3538 | 16 | { &hf_lisp_lcaf_elp_hop_flags_lookup, |
3539 | 16 | { "Lookup", "lisp.lcaf.elp_hop.flags.local", |
3540 | 16 | FT_BOOLEAN, 16, TFS(&tfs_set_notset), ELP_FLAG_L, NULL, HFILL }}, |
3541 | 16 | { &hf_lisp_lcaf_elp_hop_flags_probe, |
3542 | 16 | { "Probe", "lisp.lcaf.elp_hop.flags.probe", |
3543 | 16 | FT_BOOLEAN, 16, TFS(&tfs_set_notset), ELP_FLAG_P, NULL, HFILL }}, |
3544 | 16 | { &hf_lisp_lcaf_elp_hop_flags_strict, |
3545 | 16 | { "Strict", "lisp.lcaf_elp_hop.flags.strict", |
3546 | 16 | FT_BOOLEAN, 16, TFS(&tfs_set_notset), ELP_FLAG_S, NULL, HFILL }}, |
3547 | 16 | { &hf_lisp_lcaf_elp_hop_afi, |
3548 | 16 | { "Reencap Hop AFI", "lisp.lcaf.elp_hop.afi", |
3549 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3550 | 16 | { &hf_lisp_lcaf_elp_hop_ipv4, |
3551 | 16 | { "Reencap Hop", "lisp.lcaf.elp_hop.ipv4", |
3552 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3553 | 16 | { &hf_lisp_lcaf_elp_hop_ipv6, |
3554 | 16 | { "Reencap Hop", "lisp.lcaf.elp_hop.ipv6", |
3555 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3556 | 16 | { &hf_lisp_lcaf_srcdst_res, |
3557 | 16 | { "Reserved bits", "lisp.lcaf.srcdst.res", |
3558 | 16 | FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }}, |
3559 | 16 | { &hf_lisp_lcaf_srcdst_src_masklen, |
3560 | 16 | { "Source Prefix Mask Length", "lisp.lcaf.srcdst.src.masklen", |
3561 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3562 | 16 | { &hf_lisp_lcaf_srcdst_dst_masklen, |
3563 | 16 | { "Destination Prefix Mask Length", "lisp.lcaf.srcdst.dst.masklen", |
3564 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3565 | 16 | { &hf_lisp_lcaf_srcdst_src, |
3566 | 16 | { "Source Prefix", "lisp.lcaf.srcdst.src", |
3567 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3568 | 16 | { &hf_lisp_lcaf_srcdst_src_afi, |
3569 | 16 | { "Source Prefix AFI", "lisp.lcaf.srcdst.src.afi", |
3570 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3571 | 16 | { &hf_lisp_lcaf_srcdst_src_ipv4, |
3572 | 16 | { "Source Prefix", "lisp.lcaf.srcdst.src.ipv4", |
3573 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3574 | 16 | { &hf_lisp_lcaf_srcdst_src_ipv6, |
3575 | 16 | { "Source Prefix", "lisp.lcaf.srcdst.src.ipv6", |
3576 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3577 | 16 | { &hf_lisp_lcaf_srcdst_src_mac, |
3578 | 16 | { "Destination Prefix", "lisp.lcaf.srcdst.src.mac", |
3579 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3580 | 16 | { &hf_lisp_lcaf_srcdst_dst, |
3581 | 16 | { "Destination Prefix", "lisp.lcaf.srcdst.dst", |
3582 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3583 | 16 | { &hf_lisp_lcaf_srcdst_dst_afi, |
3584 | 16 | { "Destination Prefix AFI", "lisp.lcaf.srcdst.dst.afi", |
3585 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3586 | 16 | { &hf_lisp_lcaf_srcdst_dst_ipv4, |
3587 | 16 | { "Destination Prefix", "lisp.lcaf.srcdst.dst.ipv4", |
3588 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3589 | 16 | { &hf_lisp_lcaf_srcdst_dst_ipv6, |
3590 | 16 | { "Destination Prefix", "lisp.lcaf.srcdst.dst.ipv6", |
3591 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3592 | 16 | { &hf_lisp_lcaf_srcdst_dst_mac, |
3593 | 16 | { "Destination Prefix", "lisp.lcaf.srcdst.dst.mac", |
3594 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3595 | 16 | { &hf_lisp_lcaf_rle_entry, |
3596 | 16 | { "RTR/ETR", "lisp.lcaf.rle_entry", |
3597 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3598 | 16 | { &hf_lisp_lcaf_rle_entry_res, |
3599 | 16 | { "Reserved bits", "lisp.lcaf.rle_entry.res", |
3600 | 16 | FT_UINT24, BASE_HEX, NULL, 0x0, "Must be zero", HFILL }}, |
3601 | 16 | { &hf_lisp_lcaf_rle_entry_level, |
3602 | 16 | { "Level Value", "lisp.lcaf.rle_entry.level", |
3603 | 16 | FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, |
3604 | 16 | { &hf_lisp_lcaf_rle_entry_afi, |
3605 | 16 | { "RTR/ETR AFI", "lisp.lcaf.rle_entry.afi", |
3606 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3607 | 16 | { &hf_lisp_lcaf_rle_entry_ipv4, |
3608 | 16 | { "RTR/ETR", "lisp.lcaf.rle_entry.ipv4", |
3609 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3610 | 16 | { &hf_lisp_lcaf_rle_entry_ipv6, |
3611 | 16 | { "RTR/ETR", "lisp.lcaf.rle_entry.ipv6", |
3612 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3613 | 16 | { &hf_lisp_lcaf_kv_key, |
3614 | 16 | { "Key", "lisp.lcaf.kv_key", |
3615 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3616 | 16 | { &hf_lisp_lcaf_kv_key_afi, |
3617 | 16 | { "Key AFI", "lisp.lcaf.kv_key.afi", |
3618 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3619 | 16 | { &hf_lisp_lcaf_kv_key_ipv4, |
3620 | 16 | { "Key", "lisp.lcaf.kv_key.ipv4", |
3621 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3622 | 16 | { &hf_lisp_lcaf_kv_key_ipv6, |
3623 | 16 | { "Key", "lisp.lcaf.kv_key.ipv6", |
3624 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3625 | 16 | { &hf_lisp_lcaf_kv_key_mac, |
3626 | 16 | { "Key", "lisp.lcaf.kv_key.mac", |
3627 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3628 | 16 | { &hf_lisp_lcaf_kv_key_dn, |
3629 | 16 | { "Key", "lisp.lcaf.kv_key.dn", |
3630 | 16 | FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3631 | 16 | { &hf_lisp_lcaf_kv_value, |
3632 | 16 | { "Value", "lisp.lcaf.kv_value", |
3633 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3634 | 16 | { &hf_lisp_lcaf_kv_value_afi, |
3635 | 16 | { "Value AFI", "lisp.lcaf.kv_value.afi", |
3636 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3637 | 16 | { &hf_lisp_lcaf_kv_value_ipv4, |
3638 | 16 | { "Value", "lisp.lcaf.kv_value.ipv4", |
3639 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3640 | 16 | { &hf_lisp_lcaf_kv_value_ipv6, |
3641 | 16 | { "Value", "lisp.lcaf.kv_value.ipv6", |
3642 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3643 | 16 | { &hf_lisp_lcaf_kv_value_mac, |
3644 | 16 | { "Value", "lisp.lcaf.kv_value.mac", |
3645 | 16 | FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3646 | 16 | { &hf_lisp_lcaf_kv_value_dn, |
3647 | 16 | { "Value", "lisp.lcaf.kv_value.dn", |
3648 | 16 | FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3649 | 16 | { &hf_lisp_lcaf_natt_rloc, |
3650 | 16 | { "RLOC", "lisp.lcaf.natt.rloc", |
3651 | 16 | FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3652 | 16 | { &hf_lisp_lcaf_natt_rloc_afi, |
3653 | 16 | { "RLOC AFI", "lisp.lcaf.natt.rloc.afi", |
3654 | 16 | FT_UINT16, BASE_DEC, VALS(afn_vals), 0x0, NULL, HFILL }}, |
3655 | 16 | { &hf_lisp_lcaf_natt_rloc_ipv4, |
3656 | 16 | { "RLOC", "lisp.lcaf.natt.rloc.ipv4", |
3657 | 16 | FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3658 | 16 | { &hf_lisp_lcaf_natt_rloc_ipv6, |
3659 | 16 | { "RLOC", "lisp.lcaf.natt.rloc.ipv6", |
3660 | 16 | FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3661 | 16 | { &hf_lisp_lcaf_natt_msport, |
3662 | 16 | { "MS UDP Port Number", "lisp.lcaf.natt.msport", |
3663 | 16 | FT_UINT16, BASE_PT_UDP, NULL, 0x0, NULL, HFILL }}, |
3664 | 16 | { &hf_lisp_lcaf_natt_etrport, |
3665 | 16 | { "ETR UDP Port Number", "lisp.lcaf.natt.etrport", |
3666 | 16 | FT_UINT16, BASE_PT_UDP, NULL, 0x0, NULL, HFILL }}, |
3667 | 16 | { &hf_lisp_lcaf_vendor_res, |
3668 | 16 | { "Reserved", "lisp.lcaf.vendor.res", |
3669 | 16 | FT_UINT8, BASE_HEX, NULL, 0x0, "Must be zero", HFILL }}, |
3670 | 16 | { &hf_lisp_lcaf_vendor_oui, |
3671 | 16 | { "OUI", "lisp.lcaf.vendor.oui", |
3672 | 16 | FT_UINT24, BASE_HEX, VALS(oui_vals), 0x0, "Organizationally Unique Identifier", HFILL }}, |
3673 | 16 | { &hf_lisp_lcaf_vendor_data, |
3674 | 16 | { "Vendor Specific Data", "lisp.lcaf.vendor.data", |
3675 | 16 | FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, |
3676 | 16 | }; |
3677 | | |
3678 | | /* Setup protocol subtree array */ |
3679 | 16 | static int *ett[] = { |
3680 | 16 | &ett_lisp, |
3681 | 16 | &ett_lisp_mr, |
3682 | 16 | &ett_lisp_mreq_flags, |
3683 | 16 | &ett_lisp_mapping, |
3684 | 16 | &ett_lisp_itr, |
3685 | 16 | &ett_lisp_record, |
3686 | 16 | &ett_lisp_lcaf, |
3687 | 16 | &ett_lisp_lcaf_header, |
3688 | 16 | &ett_lisp_lcaf_geo_lat, |
3689 | 16 | &ett_lisp_lcaf_geo_lon, |
3690 | 16 | &ett_lisp_lcaf_natt_rloc, |
3691 | 16 | &ett_lisp_lcaf_mcinfo_flags, |
3692 | 16 | &ett_lisp_lcaf_mcinfo_src, |
3693 | 16 | &ett_lisp_lcaf_mcinfo_grp, |
3694 | 16 | &ett_lisp_lcaf_elp_hop, |
3695 | 16 | &ett_lisp_lcaf_elp_hop_flags, |
3696 | 16 | &ett_lisp_lcaf_srcdst_src, |
3697 | 16 | &ett_lisp_lcaf_srcdst_dst, |
3698 | 16 | &ett_lisp_lcaf_rle_entry, |
3699 | 16 | &ett_lisp_lcaf_kv_key, |
3700 | 16 | &ett_lisp_lcaf_kv_value, |
3701 | 16 | &ett_lisp_lcaf_vendor, |
3702 | 16 | &ett_lisp_loc, |
3703 | 16 | &ett_lisp_loc_flags, |
3704 | 16 | &ett_lisp_info_prefix, |
3705 | 16 | &ett_lisp_afi_list |
3706 | 16 | }; |
3707 | | |
3708 | 16 | static ei_register_info ei[] = { |
3709 | 16 | { &ei_lisp_undecoded, { "lisp.undecoded", PI_UNDECODED, PI_WARN, "Not dissected yet (report to wireshark.org)", EXPFILL }}, |
3710 | 16 | { &ei_lisp_unexpected_field, { "lisp.unexpected_field", PI_PROTOCOL, PI_ERROR, "Unexpected field", EXPFILL }}, |
3711 | 16 | { &ei_lisp_invalid_field, { "lisp.invalid_field", PI_PROTOCOL, PI_WARN, "Invalid field", EXPFILL }}, |
3712 | 16 | { &ei_lisp_expected_field, { "lisp.expected_field", PI_PROTOCOL, PI_ERROR, "Expecting field", EXPFILL }}, |
3713 | 16 | }; |
3714 | | |
3715 | 16 | expert_module_t* expert_lisp; |
3716 | | |
3717 | | /* Register the protocol name and description */ |
3718 | 16 | proto_lisp = proto_register_protocol("Locator/ID Separation Protocol", |
3719 | 16 | "LISP Control", "lisp"); |
3720 | | |
3721 | | /* Required function calls to register the header fields and subtrees used */ |
3722 | 16 | proto_register_field_array(proto_lisp, hf, array_length(hf)); |
3723 | 16 | proto_register_subtree_array(ett, array_length(ett)); |
3724 | 16 | expert_lisp = expert_register_protocol(proto_lisp); |
3725 | 16 | expert_register_field_array(expert_lisp, ei, array_length(ei)); |
3726 | | |
3727 | | /* Register dissector so that other dissectors can call it */ |
3728 | 16 | lisp_handle = register_dissector("lisp", dissect_lisp, proto_lisp); |
3729 | 16 | } |
3730 | | |
3731 | | |
3732 | | /* |
3733 | | * Simple form of proto_reg_handoff_lisp which can be used if there are |
3734 | | * no prefs-dependent registration function calls. |
3735 | | */ |
3736 | | |
3737 | | void |
3738 | | proto_reg_handoff_lisp(void) |
3739 | 16 | { |
3740 | 16 | dissector_add_uint_with_preference("udp.port", LISP_CONTROL_PORT, lisp_handle); |
3741 | 16 | ipv4_handle = find_dissector_add_dependency("ip", proto_lisp); |
3742 | 16 | ipv6_handle = find_dissector_add_dependency("ipv6", proto_lisp); |
3743 | 16 | } |
3744 | | |
3745 | | /* |
3746 | | * Editor modelines - https://www.wireshark.org/tools/modelines.html |
3747 | | * |
3748 | | * Local variables: |
3749 | | * c-basic-offset: 4 |
3750 | | * tab-width: 8 |
3751 | | * indent-tabs-mode: nil |
3752 | | * End: |
3753 | | * |
3754 | | * vi: set shiftwidth=4 tabstop=8 expandtab: |
3755 | | * :indentSize=4:tabSize=8:noTabs=true: |
3756 | | */ |